Surface Water Sup ply 

of the United States 

1950

Part 12. Pacific Slope Basins in Washington 

and Upper Columbia River Basin

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1182

Prepared in cooperation with the States 

of Idaho, Montana, and Washington and 

other agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1953
UNITED STATES DEPARTMENT OF THE INTERIOR 

Douglas McKay, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

Washington 25, D. C. - Price $1.00 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation 

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

agencies by personnel of the Water Resources Divisior under the 

direction of:

C. G. Paulsen___________________Chief Hydraulic Engineer 

J. V. B. Wells________________Chief, Surface Water Branch 

B. J. Peterson______________ Chief, Annual Reports Section

District Engineers (Surface Water)

T. R. Newell______________________ Boi«e, Idaho 

A. H, Tuttle (succeeded by Frank Stermitz)___ Helena, Mont. 

F. M. Veatch____________________________Tacoira, Wash.

in
CONTENTS

Page

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

Definition of terms................................................................... 1

Explanation of data.................................................................. 2

Accuracy of field data and computed results.......................................... 5

Publications......................................................................... 6

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

Cooperation.......................................................................... 12

Division of work..................................................................... 13

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

Pacific slope basins north of Columbia River....................................... 14

Naselle River Basin.............................................................. 14

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

Neman River Basin................................................................ 15

North Nemah River near South Bend, Wash........................................ 15

Willapa River Basin.............................................................. 16

Willapa River at Lebam, Wash................................................... 16

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

North River Basin................................................................ 18

North River near Raymond, Wash................................................. 18

Chehalis River Basin............................................................. 19

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

Chehalis River near Grand Mound, Wash.......................................... 20

Chehalis River at South Elma, Wash............................................. 21

Elk Creek near Doty, Wash...................................................... 22

South Fork Chehalis River at Boistfort, Wash................................... 23

Newaukum River near Chehalis, Wash............................................. 24

Skookumchuck River near Centralia, Wash......................................... 25

Lincoln Creek near Rochester, Wash............................................. 26

Black River at Little Rock, Wash............................................... 27

Rock Creek at Cedarville, Wash................................................. 28

Cloquallura River at Elma, Wash................................................. 29

Satsop River near Satsop, Wash................................................. 30

Wynooehee River at Oxbow, near Aberdeen, Wash.................................. 31

Humptulips River Basin........................................................... 32

Humptulips River near Humptulips, Wash......................................... 32

Qulnault Biver Basin............................................................. 33

Quinaulfr River at Quinault Lake, Wash.......................................... 33

Hoh River Basin.................................................................. 34

Hoh River near Spruce, Wash.................................................... 34

Qulllayute River Basin........................................................... 35

Soleduck River near Pairholm, Wash............................................. 35

Elwha River Basin................................................................ 38

Elwha River at McDonald Bridge, near Port Angles, Wash......................... 38

Dungeness River Basin............................................................ 39

Dungeness Rivep near Sequim, Wash.............................................. 39

Duckabush River Bas in............................................................ 40

Duckabush River- near Brinnon, Wash............................................. 40

Skokomish River Basin............................................................ 41

North Pork Skokomish River below Staircase Rapids, near Hoodsport, Wish,....... 41

North Fork Skokomish River near Potlatch, Wash................................. 42

Skokomish River near Potlatch, Wash............................................ 43

South Fork Skokomish River near Union, Wash.................................... 44

Union River Basin................................................................ 45

Union River near Bremerton, Wash............................................... 45

Union River near Selfair, Wash................................................. 46

Mission Creek Baain.............................................................. 47

Mission Lake near Bremerton, Wash.............................................. 47

Mission Creek near Bremerton, Wash............................................. 48

Mission Creek near Belfair, Wash............................................... 49

Tahuya River Basin............................................................... 50

Tahuya River near Bremerton, Wash.............................................. 50

Tahuya River near Belfair, Wash................................................ 51

Gold Creek near Bremerton, Wash................................................ 52

Panther Lake near Bremerton, Wash.............................................. 52

Panther Creek near Bremerton, Wash............................................. 53

Dewatto Creek Basin.............................................................. 54

Dewatto Creek near Dewatto, Wash............................................... 54

Dogfish Greek Basin.............................................................. 55

Dogf tshfCreek near Poulsbo, Wash............................................... 55

Chico Creek'Basin................................................................ 56

Kitsap Lake near Bremerton, Wash............................................... 56

Chico Creek near Bremerton, Wash............................................... 57

Wildcat Lake near Bremerton, Wash.............................................. 60

Blackjack Creek Basin............................................................ 61

Blackjack Creek at Port Orchard, Waah.......................................... 61

Burley Creek Basin............................................................... 62

Burley Creek at Burley, Wash................................................... 62
VI CONTENTS

Gaging-station records--Continued.

Pacific slope basins north of Columbia River Continued. Page

Minter Creek Bas in............................................................... 63

Huge Creek near Wauna, Wash.................................................... 63

Deer Creek Basin................................................................. 64

Deer Creek near Shelton, Wash.................................................. 64

Cranberry Creek Basin............................................................ 65

Cranberry Creek near Shelton, Wash............................................. 65

Johns Creek Basin................................................................ 66

Johns Creek near Shelton, Wash................................................. 66

Deschutes River Basin............................................................ 67

Deschutes River near Rainier, Wash.,........................................... 67

Deschutes River near Olympia, Wash............................................. 68

Spurgeon Creek near Olymp ia, Wash.............................................. 69

Woodland Creek Basin............................................................. 70

Woodland Creek near Olympia, Wash.............................................. 70

Nisqually River Basin............................................................ 71

Nisqually River near National, Wash............................................ 71

Alder Reservoir at Alder, Wash ................................................. 72

Nisqually River at La Grande, Wash............................................. 73

Nisqually River near McKenna, Wash............................................. 74

Nisqually River at McKenna, Wash............................................... 75

Mineral Creek near Mineral, Wash............................................... 76

East Creek near Elbe , Wash..................................................... 77

Mashel River near La Grande, Wash.............................................. 78

Ohop Creek near Eatonville, Wash............................................... 79

Tanwax Creek near McKenna, Wash................................................ 80

Chambers Creek BasJn............................................................. 81

Clover Creek near Tillicum, Wash............................................... 81

Chambers Creek below Leach Creek, near Steilacoom, Wash........................ 82

Puyallup River Basin............................................................. 83

Puyallup River near Orting, Wash............................................... 83

Puyallup River at Alderton, Wash............................................... 84

Puyallup River at Fuyallup, Wash............................................... 85

Kapowsin Creek near Kapowsin, Wash............................................. 86

Carbon River near Fairfax, Wash................................................ 87

South Prairie Creek at South Prairie, Wash..................................... 88

White River at Greenwater, Wash................................................ 89

Mud Mountain Reservoir near Buckley, Wash...................................... 90

White River near Buckley, Wash................................................. 91

Stuck River near Sumner, Wash.................................................. 92

Greenwater River at Greenwater, Wash........................................... 93

Hylebos Creek Basin.............................................................. 94

Hylebos Creek near Tacoma, Wash................................................ 94

Duwamish River Basin............................................................. 95

Green River near Lester, Wash.................................................. 95

Green River near Palmer, Wash.................................................. 96

Green River near Auburn, Wash.................................................. 97

Snow Creek near Lester, Wash................................................... 98

Friday Creek near Lester, Wash................................................. 99

Smay Creek near Lester, Wash................................................... 100

Charley Creek near Eagle Gorge, Wash........................................... 101

Bear Creek near Eagle Gorge, Wash.............................................. 102

Newaukum Creek near Black Diamond, Wash........................................ 103

Big Soos Creek near Auburn, Wash............................................... 104

Lake Washington Basin............................................................ 105

North Fork Cedar River near Lester, Wash....................................... 105

Cedar River below Bear Creek, near Cedar Falls, Wash........................... 106

Cedar River near Cedar Falls, Wash............................................. 107

Cedar River at Cedar Falls, Wash............................................... 108

Cedar River near Landsberg, Wash............................................... 109

Cedar River at Renton, Wash.................................................... 110

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

Rex River near Cedar Falls, Wash............................................... 112

Rock Creek near Maple Valley, Wash. ....."....................................... 113

May Creek near Renton, Wash.................................................... 114

Issaquah Creek near Issaquah, Wash............................................. 115

Samraamish Lake near Redmond, Wash.............................................. 116

Sammamish River near Redmond, Wash............................................. 117

Samraamish River at Bothell, Wash............................................... 118

Bear Creek at Redmond, Wash.................................................... 119

North Creek near Bothell, Wash................................................. 120

Snohomish River Basin............................................................ 121

South Fork Skykomish River near Skykomish, Wash................................ 121

South Fork Skykomish River near Index, Wash.................................... 12?

Skykomish River near Gold Bar, Wash............................................ 124

Snohomish River at Snohomish, Wash............................................. 125

Wallace River at Gold Bar, Wash................................................ 126

Olney Creek near Gold Bar, Wash................................................ 127

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

McCoy Creek near Sultan, Wash.................................................. 132

Woods Creek near Monroe, Wash.................................................. 133

Snoqualmie River near Tolt, Wash............................................... i34

South Fork Snoqualmie River at North Bend, Wash.............. ................. 135

Raging River near Fall City, Wash.............................................. 136

Patterson Creek near Fall City, Wash........................................... 137

Griffin Creek near Tolt, Wash.................................................. 138
CONTENTS VII

C-aging-station records Continued.

Pacific slope basins north of Columbia River--Continued.

Snohomish River Basin Continued. Page

Tol t River near Tolt, Wash..................................................... 139

Pilchuck River near Granite Falls , Wash........................................ 140

Little Pilchuck Creek near Lake Stevens, Wash.................................. 141

Lake Stevens at Lake Stevens, Wash............................................. 142

Stevens Creek at Lake Stevens, Wash............................................ 143

Dabuque Creek near Lake Stevens , Wash.......................................... 144

Quilceda Creek near Marysville, Wash........................................... 145

Stillaguamish River Basin........................................................ 146

South Pork Stillaguamish River below Bender Creek, near Silverton, Wash........ 146

South Pork Stillaguamish River near Granite Falls, Wash........................ 147

South Pork Stillaguamish River above Jim Creek, near Arlington, Wash........... 148

Boardman Creek near Silverton, Wash............................................ 149

Benson Creek near Granite Falls, Wash.......................................... 150

Canyon Creek near Granite Palls , Wash.......................................... 151

Jim Creek near Arlington, Wash................................................. 152

Cub Creek near 9so, Wash....................................................... 153

North Pork Stillaguamish River near Darrington, Wash........................... 155

North Pork Stillaguamish River near Arlington, Wash............................ 156

Squire Creek near Darrington , Wash............................................. 157

Boulder River near Oso, Wash................................................... 157

Deer Creek at Oso, Wash................. ...................................... 158

Armstrong Creek near Arlington, Wash....................................... ... 159

Pilchuck Creek near Bryant, Wash............................................... 159

Cavanaugh Lake near Oso, Wash.................................................. 160

Portage Creek near Arlington , Wash............................................. 160

Pish Creek near Arlington, Wash................................................ 161

Church Creek near Stanwood, Wash ............................................... 162

Skagit River Basin............................................................... 163

Skagit River near Hope, British Columbia....................................... 163

Ross Reservoir near Mewhalem, Wash............................................. 164

Skagit River at Newhalem, Wash................................................. 165

Skagit River at Marblemount, Wash.............................................. 166

Skagit River near Concrete , Wash............................................... 167

Skagit River near Mount Vernon, Wash........................................... 168

Reservoirs in Skagit River Basin, Wash......................................... 169

Ruby Creek below Panther Creek, near Newhalem, Wash............................ 170

Thunder Creek near Hewhalem, Wash.............................................. 171

Stetattle Creek near Newhalem, Wash............................................ 172

Bacon Creek near Marblemount, Wash. ............................................ 173

Cascade River at Marblemount, Wash............................................. 174

Sauk River above Whitechuck River, near Darrington, Wash....................... 175

Sank River near Sauk, Wash..................................................... 176

Baker River at Concrete, Wash.................................................. 177

Alder Creek near Hamilton, Wash................................................ 178

Day Creek near Lyman, Wash..................................................... 179

Coal Creek near Sedro Woolley, Wash,........................................... 180

East Pork Nookachamps Creek near Clear Lake, Wash.............................. 181

Samish River Basin............................................................... 182

Samish River near Burlington, Wash............................................. 182

Whatcom Creek Basin.............................................................. 183

Whatcom Creek below hatchery, near Bellingham, Wash............................ 183

Nooksack River Basin............................................................. 184

Nooksack River above Cascade Creek, near Glacier, Wash......................... 184

Nooksack River at Deming, Wash................................................. 185

Nooksack River near Lynden, Wash............................................... 186

Kendall Creek at Kendall, Wash................................................. 187

Canyon Creek at Kulshan, Wash.................................................. 188

South Fork Nooksack River near Wickersham, Wash................................ 189

Skookum Creek near Wickersham, Wash............................................ 190

Fishtrap Creek at Lynden, Wash................................................. 191

Dakota Creek Basin............................................................... 192

Dakota Creek near Blaine, Wash................................................. 192

Fraser River Basin............................................................... 193

Sumas River near Sumas, Wash................................................... 193

Upper Columbia River Basin......................................................... 194

Columbia River main stem......................................................... 194

Columbia River at Birehbank, British Columbia.................................. 194

Columbia River at international boundary....................................... 195

Franklin D. Roosevelt Lake at Grand Coulee Dam, Wash........................... 196

Columbia River at Grand Coulee Dam, Wash....................................... 197

Columbia River at Trinidad, Wash............................................... 198

Kootenai River Basin............................................................. 199

Kootenay River at Newgate , British Columbia.................................... 199

Kootenai River at Libby, Mont.................................................. 200

Kootenai River at Leonia, Idaho................................................ 201

Kootenai River at Boom Camp, near Bonners Ferry, Idaho......................... 202

Kootenai River at Bonners Ferry, Idaho......................................... 203

Kootenai River near Bonners Ferry, Idaho....................................... 205

Kootenai River at Klockmann Ranch, near Bonners Perry, Idaho................... 206

Kootenai River near Copeland, Idaho............................................ 207

Kootenai River at Porthill, Idaho.............................................. 209

Kootenay Lake at Kuskonook, British Columbia................................... 211

Portine Creek near Trego , Mont................................................. 212

Lake Creek at Troy, Mont....................................................... 213

Boulder Creek near Leonia, Idaho ............................................... 214
VIII CONTENTS

Qaging-station records--Continued.

Upper Columbia River Basin--Continued.

Kootenai River Basin Continued. Page

Moyie River at Eastport, Idaho................................................. 215

Moyie River at Eileen, Idaho................................................... 216

Deep Creek at Moravia, Idaho................................................... 217

Long Canyon Creek near Forthill, Idaho......................................... 218

Smith Creek near Porthill, Idaho............................................... 219

Boundary Creek near Porthill, Idaho ............................................ 220

Pend Oreille River Basin......................................................... 221

Clark Fork above Missoula, Mont................................................ 221

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

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

Clark Fork near Plains , Mont................................................... 224

Clark Fork near Heron, Mont.................................................... 225

Pend Oreille Lake at Hope, Idaho............................................... 226

Pend Oreille River below Z Canyon, near Metaline Falls, tfash................... 227

Smaller reservoirs in Pend Oreille River Basin, Mont................... i....... 228

Flint Creek near Southern Cross, Mont.......................................... 229

Flint Creek at Maxville, Mont.................................................. 230

Trout Creek near Southern Cross , Mont.......................................... 231

Boulder Creek at Maxville, Mont................................................ 232

Middle Fork Rock Creek near Philipsburg, Mont.................................. 233

Blackfoot River near Helmville, Mont........................................... 234

Blackfoot River near Ovando, Mont.............................................. 235

Blackfoot River near Bonner, Mont.............................................. 236

Nevada Creek above reservoir, near Finn, Mont.................................. 237

West Fork Bitterroot River near Conner, Mont................................... 238

Bitterroot River near Darby, Mont.............................................. 239

East Fork Bitterroot River at Conner, Mont..................................... 240

Rock Creek near Darby, Mont.................................................... 241

Rock Creek Canal near Darby, Mont.............................................. 242

Skalkaho Creek near Hamilton, Mont............................................. 243

Blodgett Creek near Corvallis, Mont............................................ 244

Fred Burr Creek near Victor, Mont.............................................. 245

Bear Creek near Victor, Mont................................................... 246

Kootenai Creek near Stevensville, Mont......................................... 247

Burnt Fork Creek near Stevensville, Mont....................................... 248

Flathead River at Fladhead, British Columbia................................... 249

Flathead River near Columbia Falls , Mont....................................... 250

Flathead River at Columbia Falls, Mont......................................... 251

Flathead Lake at Sommers, Mont................................................. 252

Flathead River near Poison, Mont............................................... 253

Middle Fork Flathead River at Essex, Mont...................................... 254

Middle Fork Flathead River near West Glacier, Mont............................. 255

Bear Creek near Essex, Mont.................................................... 256

Skyland Creek near Essex, Mont................................................. 257

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

Mont......................................................................... 258

South Fork Flathead River near Columbia Falls, Mont............................ 259

Spotted Bear River near Hungry Horse, Mont..................................... 260

Twin Creek near Hungry Horse, Mont............................................. 261

Lower Twin Creek near Hungry Horse, Mont....................................... 262

Sullivan Creek near Hungry Horse, Mont......................................... 263

Graves Creek near Hungry Horse, Mont........................................... 264

Stillwater River near Whitefish, Mont.......................................... 265

Whitefish Creek near Kalispell, Mont........................................... 266

Ashley Creek near Kalispell, Mont.............................................. 267

Swan River near Bigfork, Mont.................................................. 268

Priest Lake at outlet, near Coolin, Idaho...................................... 269

Priest River near Coolin, Idaho................................................ 270

Priest River near Priest River, Idaho.......................................... 271

Kettle River Basin............................................................... 272

Kettle River near Ferry, Wash.................................................. 272

Kettle River near Lauriee, Wash................................................ 273

Myers Creek near Myncaster, British Columbia................................... 274

Colville River Basin............................................................. 275

Colville River at Kettle Falls, Wash........................................... 275

Loon Lake near Loon Lake, Wash................................................. 276

Sheep Creek at Loon Lake, Wash................................................. 277

Mill Creek near Colville, Wash................................................. 278

Spokane River Basin.............................................................. 279

Coeur d'Alene River near Prichard, Idaho....................................... 279

Coeur d'Alene River at Enaville, Idaho......................................... 280

Coeur d'Alene River near Cataldo, Idaho........................................ 281

Coeur d'Alene Lake at Coeur d'Alene, Idaho..................................... 282

Spokane River near Post Falls, Idaho........................................... 283

Spokane River at Qreenacres, Wash.............................................. 284

Spokane River below Trent Bridge, near Spokane, Wash........................... 285

Spokane River below Green Street, at Spokane, Wash............................. 286

Spokane River at Spokane, Wash................................................. 287

Spokane River above Seven Mile Bridge, near Spokane, Wash...................... 288

Spokane River below Nine-Mile Dam, near Spokane, Wash.......................... 289

Spokane River at Long Lake, Wash............................................... 290

St. Joe River at Calder, Idaho................................................. 291

St. Maries River at Lotus, Idaho............................................... 292

Hayflen Creek below North Fork, near Hayden Lake, Idaho......................... 293
CONTENTS IX

Gaging-station records continued.

Upper Columbia River Basin--Continued.

Spokane River Basin--Continued. Page

Hayden Lake at Hayden Lake, Idaho............................................... 294

Hayden Lake Irrigation District diversion near Hayden Lake, Idaho.............. 295

Rathdrum Prairie Canal at Huetter, Idaho....................................... 296

Spokane Valley Farms Co.'s canal at Post Palls , Idaho.......................... 297

Latah Creek at Spokane, Wash................................................... 298

Little Spokane River at Elk, Wash.............................................. 299

Little Spokane River at Dartford , Wash......................................... 300

Little Spokane River near Dartford, Wash....................................... 301

Okanogan River Basin............................................................. 302

Okanagan River at Okanagan Falls, British Columbia............................. 302

Osoyoos Lake near Oroville, Wash............................................... 303

Okanogan River at Oroville, Wash............................................... 304

Okanogan River near Tonasket, Wash............................................. 305

Similkameen River near Nighthawk, Wash......................................... 306

Methow River Basin............................................................... 307

Methow River at Twisp, Wash.................................................... 307

Chelan River Basin............................................................... 308

Stehekin River at Stehekin, Wash............................................... 308

Lake Chelan at Chelan, Wash.................................................... 309

Chelan River at Chelan, Wash................................................... 310

Railroad Creek at Lucerne, Wash................................................ 311

Wenatchee River Basin............................................................ 312

Wenatchee Lake near Plain, Wash................................................ 312

Wenatchee River below Wenatchee Lake, Wash..................................... 313

Wenatchee River at Plain, Wash................................................. 314

Wenatchee River at Peshastin, Wash............................................. 315

Icicle Creek above Snow Creek, near Leavenworth, Wash.......................... 316

Moses Coulee Basin............................................................... 317

Douglas Creek near Alstown, Wash............................................... 317

Douglas Creek near Palisades, Wash............................................. 318

Crab Creek Basin................................................................. 319

Crab Creek at Irby, Wash....................................................... 319

Crab Creek near Moses Lake, Wash............................................... 320

Moses Lake at Moses Lake , Wash................................................. 321

Crab Creek near Warden, Wash................................................... 322

Crab Creek near Smyrna, Wash................................................... 323

Park Lake near Coulee City, Wash............................................... 324

Park Creek below Park Lake, near Coulee City, Wash............................. 325

Blue Lake near Coulee City, Wash............................................... 326

Lenore Lake near Soap Lake, Wash............................................... 327

Soap Lake near Soap Lake, Wash................................................. 328

Rocky Ford Creek near Ephrata, Wash............................................ 329

Yakima River Basin............................................................... 330

Yakima River near Martin, Wash................................................. 330

Yakima River at Cle Elum, Wash................................................. 331

Yakima River at Umtanum, Wash.................................................. 332

Yakima River near Parker, Wash................................................. 333

Yakima River at Kiona, Wash.................................................... 334

Reservoirs in Yakima River Basin............................................... 335

Kachess River near Easton, Wash................................................ 337

Cle Elum River near Roslyn, Wash............................................... 338

Teanaway River near Cle Elum, Wash............................................. 339

Naches River below Tieton River, near Naches, Wash............................. 340

Bumping River near Nile, Wash.................................................. 341

American River near Nile, Wash................................................. 342

Tieton River at Tieton Dam, near Naches, Wash.................................. 343

Tieton River at headworks of Tieton Canal, near Naches, Wash................... 344

North Fork Ahtanum Creek near Tampico, Wash.................................... 345

South Fork Ahtanum Creek at Conrad Ranch, near Tampico, Wash................... 346

Miscellaneous discharge measurements ................................................. 347

Index................................................................................ 357

ILLUSTRATION

Page 

Figure 1. Columbia River at Trinidad, Wash.; A, Recording gage shelter and stilling

well; B, East cable tower............................................... 3
SURFACE WATER SUPPLY OP PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLUMBIA RIVER

BASIN, 1950

SCOPE OF WORK

This volume is one of a series of 14 reports presenting results of measurements of 

stage and flow made on streams, lakes, and reservoirs in the United States during the 

water year ending September 30, 1950. The work was begun in 1888 in connection with 

special studies relating to irrigation. Measurements of the flow of streams and of the 

stage and contents of lakes and reservoirs have been made at about 12,060 gaging stations 

in the 48 States and also at many in the Territories of Alaska and Hawaii. On September 

30, 1950, 6,540 gaging stations, including those in Hawaii and Alaska were being maintained by the Geological Survey and cooperating organizations. Miscellaneous discharge 

measurements were made during the water year at many other points.

In the execution of the work many State and private organizations have cooperated, 

either by furnishing data or by assisting in collecting data. Cooperation of the first 

kind is acknowedged in connection with the description of each station affected; cooperation of the second kind is acknowledged, under the heading "Cooperation," in the introductory matter that precedes the gaging-station records in each volume. In the present 

volume, the section on cooperation of the second kind appears on page 12.

DEFINITION OF TERMS

The units in which stream-flow data are presented in this report and ether terms used 

herein are defined as follows:

"Second-feet" is an abbreviation for "cubic feet per second." A secord-foot is the 

rate of discharge or a stream whose channel is 1 square foot in cross-sectional area and 

whose average velocity is. 1 foot per second.

"Second-feet per square mile" is the average number of cubic feet of vater flowing per 

second from each square mile of area drained, on the assumption that the runoff is distributed uniformly both as regards 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. It is used 

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

An "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 connection 

with storage for irrigation.

"Second-foot-day" is the volume of water represented by a flow of 1 second-foot 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.

"Stare-discharge relation" is an abbreviation for the term "relation between gage height 

and discharge."

'"Control" is a term used to designate a feature downstream from the gage that determines the stage-discharge relation at the gage. This feature may be a natural section, 

a reach of the channel, or an artificial structure.

"Contents" is a term applied to the volume of water in a reservoir. Unless otherwise 

indicated, it is computed on the basis of a level pool and does not include bank storage.

1
? SURFACE WATER SUPPLY, 1950, PART 12

"Drainage area" of a stream at a specified location is that area, measured in a horizontal plane, which is enclosed by a topographic divide such that direct surface runoff 

from precipitation normally would drain by gravity Into the river basin above the specified 

point. Figures of drainage area given herein include all closed basins or non-contributing 

areas within the area unless otherwise noted.

EXPLANATION OF DATA

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

of discharge, and general information used to supplement the records of stage and discharge 

measurements in determining the daily flow. The records of stage are obtained either from 

direct readings on a nonrecording gage or from a water-state recorder that gives a continuous record of the fluctuations. Measurements of discharge are made with a current 

meter by the general methods outlined in standard textbooks on the measurement of river 

discharge. Typical structures in use at gaging stations are shown in figure 1.

Rating tables giving the discharge for any stage are prepared from the discharge measurements. 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 ths "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. At times the stage-discharge relation for a station 

may be temporarily changed by the presence of aquatic growth or debris on the control. 

For such times the dally mean discharge is computed by what is essentially the "shiftingcontrol" method, described above.

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

reservoirs, tributary streams, or other sources, which necessitates the use of the "slope 

method," in which the slope or fall in a reach of the stream is a factor in tl« determination of discharge. Information requisite for determining the slope or fall is obtained 

by means of an auxiliary gage set at some distance from the base gage. At sone stations 

the stage-discharge relation is affected by changing stage, and for them the rate of 

change of stage is used as a factor in the determination of discharge.

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

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

the winter, which makes it Impossible to compute the discharge ir the usual manner. Discharge for periods of ice effect is computed on the basis of the gage-height record and 

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

comparable records of discharge for stations in the same or nearby basins. Fe*1 those 

stations at which the stage-discharge relation 3>s affected by ice, the days included in 

the periods of ice-effect either are indicated In the table by symbols referring to a 

footnote that states this fact or are given in a general note following the table. The 

days on which discharge measurements were made during or between periods of ice effect, 

shortly before the first period, or shortly after the last period are similarly indicated 

by a footnote.

For most of the gaging stations on streams in the area covered by .this report the data 

presented comprise a description of the station, a table showing the dally discharge of
EXPLANATION OP DATA
4 SURFACE WATER SUPPLY, 1950, PART 12

the stream, and a table of monthly and yearly discharge and runoff. Skeleton rating 

tables are published for all stations except those at which the dally discharge for the 

greater part of the year was determined by the shifting-control method, the slope method, 

or other special methods.

The description of the station gives the type of gage, location, drainage area, records 

available, average discharge, extremes of discharge, general remarks, and notations of revisions of previously published record. The location of the gaging station and the drainage area are obtained from the most accurate maps available. Under "Average discharge" is 

given the average discharge for the number of years Indicated. It is not given* for stations having less than 10 complete years of record or for stations where changes in water 

development during the period of record cause the figure to nave little significance. 

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

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

of no importance). Unless otherwise qualified, the maximum discharge corresponds to the 

crest stage, obtained by use of a water-stage recorder, a crest-stage indicator, or a nonrecording gage read at the time of the crest. Information pertaining to the accuracy of 

the records and conditions which affect the natural flow at the gaging station is given 

under "Remarks."

For some stations previously published records have been found to be in error on the 

basis of data or information obtained subsequently. Revisions of such records are usually 

published along with the current records in one of the annual reports. In order to make 

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

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

published. Listed therein are all the reports in which revisions appear, each followed by 

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

number, W. means Water-Supply Paper. In listing the years, water years are indicated by 

only 1 year, for instance, 1933 stands for the water year October 1, 1932, to September 30, 

1933. If there were no daily, monthly, or annual figures of discharge Involved 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; arid (P) that only peak discharges we're 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 second-feet 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 second-feet 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.

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

sudden or rapid fluctuation, the table gives the discharge corresponding to the dally mean 

gage height. For stations subject to such fluctuation the daily mean gage height may not 

indicate the true daily mean discharge, which must be obtained by averaging the discharge 

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

daily mean discharge from a continuous gage-height graph and containing as an essential 

element a curve representing the stage-discharge relation at the station. For stations 

equipped with nonrecordlng gages, the table of dally discharge gives the discharge
ACCURACY OF FIELD DATA AND COMPUTED RESULTS 5

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

or the mean gage .height determined from gage-height graphs based on gage readings. For 

periods of rapidly changing stage, the daily mean discharge is determined from gage-height 

graphs based on gage readings, the frequency of which is stated in the station description.

In the table of monthly discharge the column headed "Second-foot-days" gives the sum 

for each month of the figures given in the table of daily discharge. The column headed 

"Maximum" gives the maximum daily discharge, not the momentary discharge when the water 

surface was at crest stage. Likewise, in the column headed "Minimum" the quantity given 

is the minimum daily discharge. The column headed "Mean" gives the average flow in cubic 

feet per second during the month.

Peak discharges with the times of their occurrence are listed below the table of monthly 

discharge for most stations. All independent peaks above the selected tase 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.

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

given stages is usually given in the first report in which data for a station are published 

but is omitted from succeeding reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of stream-flow data depends primarily on (1) the permanency 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 flow, and interpretation of 

records.

The station description gives a statement in regard to the general accuracy of the records. "Excellent" indicates that, in general, the error in the daily records is believed 

to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and 

"poor," probably more than 15 percent. The records of monthly and yearly mean discharge 

and runoff are, in general, more accurate than the daily records.

Yield at some stations as indicated by monthly means may vary widely from natural yield, 

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

due to artificial causes, or other factors. For such stations figures of "second-feet per 

square mile" and "runoff in inches" are not published unless storage or diversion records 

are included Indicating the extent of the regulation or diversion or unless satisfactory 

adjustments can be made for changes in contents or reservoirs or for other changes incident 

to use and control. Evaporation from a reservoir is not included in ths adjustments for 

changes in reservoir contents, unless its inclusion is indicated. Even at those stations 

where adjustments are made, in some instances large errors in computed yields may occur 

when relatively large negative adjustments are applied or when evaporation is large in 

comparison with the observed discharge. Figures of second-feet per square mile and runqff 

in inches are also omitted if the drainage area includes large noncontributing areas or if 

the average annual rainfall over the drainage area is less than 20 inches.
6 SURFACE WATER SUPPLY, 1950, PART 12

Many gaging stations on streams In the Irrigated are.as of the United States are situated 

above most of the diversions from those streams, and therefore the discharge recorded does 

not show the water supply available for further development, as prior appropriations below 

the station must first be satisfied.

The table of monthly discharge presents in summary the distribution of the flow past the 

station. The table of daily discharge affords, opportunity for more detailed studies of the 

variation in flow. As further observations in each succeeding year may be expected to 

throw new light on data previously published, it should be borne in mind that such data are 

subject to revision in succeeding water-supply papers.

PUBLICATIONS

The results of stream-flow measurements are now published annually in 14 parts, each 

part covering an area whose boundaries coincide with natural drainage features as indicated 

below:

Part 1. North Atlantic slope basins (St. John River to York River).

2. South Atlantic slope and eastern Gulf of Mexico basins (James River to Mississippi 

	River).

3. Ohio River Basin.

4. St. Lawrence River Basin.

5. Hudson Bay and upper Mississippi River Basins.

6. Missouri River Basin.

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 obtained or consulted as explained below.

1. Copies may be purchased at nominal cost from the Superintendent of Documents, Government Printing Office, Washington, D. C., who will, on application, furnish lists giving 

prices.

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

the United States.

3. Sets are available for consultation in the offices of the water resources division of 

the Geological Survey as follows:

East of the Mississippi River:

Albany, N. Y., 526 Federal Building.

Asheville, N. C., 220 Post'Office Building.

Atlanta, Ga. , 644 Peachtree Seventh.

Augusta, Maine, 420 Statehouse.

Baton Rouge, La., 850 North 5th Street.

Boston, Mass., 939 Post Office Building.

Champaign, 111., 605 South Nell Street.

Charleston, W. Va., 408 Union Building.

Charlottesville, Va., Cabell Hall, University of Virginia.

Chattanooga, Tenn., 442 Post Office Building.

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

Columbia, S. C., 207 Creason Building.

Columbus, Ohio, 1509 Hess Street.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 311 West Washington Street.

Jackson, Miss., Room 1, Fidelity Building.

Knoxville, Tenn., 337 Post Office Building.

T,ansing, Mich. , 611 Capitol Saving & Loan Building.

Louisville, Ky., 531 Federal Building.

Madison, Wls., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building.

Ocala, Fla., Building 211, Camp Roosevelt.

Pittsburgh, Pa., 515 Plaza Building.

Raleigh, N. C., 908 Capitol Club Building.

St. Paul, Minn., 1427 New Post Office Building.

Trenton, N. J., 228 Federal Building.

Washington, D. C., General Services Administration Building.
PUBLICATIONS 7

West of the Mississippi River:

Austin, Tex., 302 West Fifteenth Street.

Bismarck, N. Dak., 7 Eltinge Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., Federal Center.

Fort Smith, Ark., 6 Post Office Building.

Helena, Mont., 408 Federal Building.

Honolulu, 'Hawaii, 225 Federal Building.

Idaho Falls, Idaho, 204 Federal Building.

Iowa City, Iowa, 508 Hydraulic Laboratory, University of Iowa.

Juneau, Alaska, Sub Port.

Lincoln, Nebr., 510 Rudge-G-uenzel Building.

Los Angeles, Calif., 429-F United States Post Office and Courthouse.

Oklahoma City, Okla., 405 Post Office Building.

Pierre, S. Dak., 207 Federal Building.

Portland, Oreg., 606 Post Office Building.

Rolla, Mo., 211 Ramsey Building.

St. Louis, Mo., 1004 New Federal Building.

Salt Lake City, Utah, 303 Federal Building.

San Francisco, Calif., 541 Federal Office "Building.

Santa Fe, N. Mex., 204 United States Courthouse.

Tacoraa, Wash., 228 Federal Building.

Topeka, Kans., 305 Federal Building.

Tucson, Ariz., 210 Post Office Building.

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

Geological Survey, Washington, D. C.

Prior to publication, records of discharge in provisional form for individual stations 

may usually be obtained from the district offices listed above.

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 tho^e indicated 

have been included for some streams.

Stream-flow data for the years 18S4-19O1, in reports of the Geological Survey 

(A . Annual Report; B « Bulletin; W - Hater-Supply Paper)

Report

loth A, pt. 

llth A, pt. 

12th A, pt. 

13th A, pt. 

14th A, pt. 

B 131....... 

16th A, pt. 

B 140.......

H 11........

18th A, pt. 

W 15

H 16........

19th A, pt. 

H 37........

20th A, pt. 

H 35 to 39., 

21st A, pt. 

H 47 to 53.. 

22d A, pt. 4 

H 65, 66.... 

H 75........

Z 

2 

2 

3 

2

2 

4

4

4 

4

Character of data

Descriptive Information only.

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

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

Descriptive Information only. 

Descriptions, measurements, gage heights, ratings, and 

monthly discharge. 

Oage heights ................................................. 

Descriptions, measurements ratings, and monthly discharge... 

Descriptions, measurements and gage heights of streams east 

of the Mississippi River and Missouri River and tributaries above Kansas River. 

Descriptions, measurements and gage Heights of stream west 

of the Mississippi River except Missouri River and tributaries above Kansas River 

Descriptions, measurements, ratings, and monthly, discharge. 

Measurements, ratings, and gage heights of streams east of 

the Mississippi River, and Missouri River and tributaries. 

Measurements, ratings, and gage heights of streams west of 

the Mississippi River, except Missouri River and tributaries .

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

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

Year

1884 to September 1890. 

1884 to June 30, 1891. 

1884-93. 

1888-93. 

1893-94.

1895.

1896. 

1895-96 . 

1897.

1897.

1897. 

1898.

1896.

1896. 

1899. 

189S. 

190C. 

190C. 

1901. 

1901.

Papers on surface water supply containing records from 1899 to date, grouped by years 

and drainage basins, are listed by number on page 8. The data for any particular gaging 

station will, in general, be found in the reports covering the years durir^ which the 

station was maintained. For example, the data for 1910 to 1920 for any station In the 

area covered by part 3 are published In Water-Supply Papers 283, 303, 323, 353, 403, 433, 

453, 473, and 503, which contain records for the Ohio River Basin for those years.

238382 O - 53 - 2
Numbers of water-supply papers containing results of stream measurements

Year

1903. ...................

1904....... .............

1909. ...................

1910. ...................

1912. ...................

1914. . .................

1915..... ...............

1919-20... ..............'

1921. ...................

1923

1925. ...................

1926. ...................

1930.. ..................

1931. ...................

1935. ...................

1936. ...................

1940.. ....:.............

1941. ...................

1945. ...................

1946. ...................

1949. ...................

1950. ...................

1 1 " SS 

47, h48 

65, 75 

82 

97

olH4, p!25, q!26 

ol65, p!66, q!67 

0201, pZO?, q203 

241 

261

281 

301 

321 

351 

381

401 

431 

451 

471 

501 ssr

541 

561 

581 

601

641 

661 

681 

696

711 

726 

741 

756 

781

801 

821 

851 

871 

891

951 

971 

1001 

1031

1051 

1081

1111 

1141 

1171

2

b35, 36 

48 

65, 75 

b82, 83 

b97, 98

ql26, 12? 

q!67, 168 

qZ03, Z04 

242 

262

E8Z

302 

322 

352 

382

40Z 

432 

452 

472

502

522 

542 

562 

582 

602

642 

662 

682 

697

71Z 

727 

742 

757 

782

802 

822 

852 

872 

892

952

972 

1002 

1032

105Z 

1082 

1112 

1142

1172

3

36 

48, 149 

65, 75 

83 

98 I2T"

169 

205 

243 

263

283

303 

323 

353 

383

403 

433 

453 

473 

503

523 

543 

563 

583 

603

643 

663 

683 

698

713 

728 

743 

758 

783

803 

823 

853

873 

893

953 

973

1003 

1033

1053 

1083 

1113 

1143 

1173

4

36 

49 

65, 75 

m82, 83 

97 IzT"

170 

206 

244 

264

284 

304 

324 

354 

384

404 

434 

454 

474

504 5zT"

544 

564 

584 

604

644 

664 

684 

699

714 

729 

744 

759 

784

804 

824 

854 

874 

894

954 

974 

1004 

1034

1O54 

1084

1114 

1144 

;i74

5

36 

49 

k65, 66, 75 

k83, 85 

k98, 99, nlOO Icl28. 130 ' 

171 

207 

245 

265

285 

305

325 

355 

385

405 

435 

455 

475 

505

525 

545

565 

585 

605

6Z5 

645 

665 

685 

700

715 

730 

745 

760 

785

805 

825 

855 

875 

895

925 

955 

975 

1005 

1035

1055 

1085 

1115 

1145

1175

6

o36, 37 

49, J50 

66, 75 

84 

99

172 

208 

246 

266

286 

306 

326 

356 

386

406 

436 

456 

476 

506

526 

546 

566 

586 

606

626 

646 

666 

686 

701

716 

731 

746 

761 

786

806 

826 

856 

876 

896

926

956 

976 

1006 

1036

1056 

1086

1116 

1146

1176

7

3

5

k65, 66, 7

k33, 8

k98, 9

kl26, 13

k!69, 17

kZOS, 20

24

26

28

30

32

35

38

40

43

45

47

50

52

54

56

58

60

62

64

66

68

70

71

73

74

76

78

80

82

85

87

89

92

95

97

100

103

105

108

111

lit

117

j Loup, Platte, and 
PUBLICATIONS

The. records at most of the stations discussed in these reports extend ove- a series of 

years. Miscellaneous measurements at many points other than regular gaging stations have 

been made each year and are published under "Miscellaneous discharge measurements" at the 

end of each report, the streams and points of measurement listed appearing in the same 

relative order as the streams and gaging stations in the body of the report. An index of 

the records obtained prior to 1904 has been published in Water-Supply Paper 119.

Each of the reports on surface water supply for the year 1938, issued as Water-supply 

Papers 871 to 884 (see table on p. 8), contains, for the area covered by that report, a 

summary of yearly discharge at gaging stations at which 10 or more complete years of record 

have been collected. These summaries are available also as separate reprints.

Reports have been published that are compilations of records for various areas, usually 

a single State or drainage basin. These reports contain records previously published 

(some of which have been revised), as well as some records not contained In the annual 

series or water-supply papers. The following table gives the numbers and titles of these 

reports, arranged alphabetically, some by States and some by drainage basins.

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

Report Period Water-Supply 

Paper

STATE 

Alabama, Water powers of, with an appendix on stream measurements In 2.895-1903

Mississippi. 

California, Water resources of, part 1, Stream measurements In Sacra- 1887-1912

mento River Basin. 

California, Water resources of, part Z, Stream measurements In San 1878-1912

Joaquln River Basin. 

California, Water resources of, part 3, Stream measurements In the Great 1891-1912

Basin and Pacific Coast river basins. 

California, southern, Surface water supply of Pacific slope of........... 1890-1918

California, Surface water supply of Sacramento River Basin............... 1895-1927

California, Surface water supply of San Joaquln River Basin.............. 1895-1927

California, southern, Surface water supply of Pacific slope basins In.... 1894-1927

California, Surface water supply of minor San Francisco Bay, northern 1895-1927

Pacific, and Great basins In. 

Colorado, Water resources of............................................. 1884-1900

Georgia, Water resources of.............................................. 1895-1905

Massachusetts, Surface waters of......................................... 1848-1915

Massachusetts, Hydrology of, Part 1, Summary of stream-flow and precipi- 1863-194°5

tation records. 

Nebraska, Surface water supply of........................................ 1894-19C6

Oregon, Surface water supply of.......................................... 1878-1910

Texas, Summary of records of surface waters of........................... 1898-1927

Vermont, Surface waters of............................................... 1875-1916

Washington, Summary of hydrometric data in............................... 1878-1919

Washington, Summary of records of surface waters of...................... 1919-35

Wisconsin, northern, Water power of...................................... 1895-19C5

Wyoming, Surface waters of, and their utilization........................ 1894-1921

DRAINAGE BASIN

Colorado River (Arlz., Colo., N. Mex., Utah, Wyo.) and Its utilization... 1888-1914 

Colorado River, upper (Colo., Utah), and Its utilization................. 1897-1927

Colorado River Basin (Ariz., Calif., Colo., Utah, Wyo.), Surface waters 1891-1958

at base stations In. 

Colorado River Basin (Arlz., Calif., Nev., N. Nex., Utah), Surface waters 1888-1958

at stations on tributaries In lower. 

Columbia River Basin, upper (Mont., Idaho), Surface waters of............ 1898-1958

Great Salt Lake Basin, Water powers of................................... 1889-192*0

Qreen River (Colo., Utah, Wyo.) and its utilization...................... 1S94-19F6

Kennebec River Basin (Maine), Water resources of......................... 1890-190"

Milk River. See St. Mary and Milk Rivers................................

Missouri and St. Mary River Basins (Mont.), Surface waters of............ 1881-1938

New-Kanawha River Basin (N. C., Va., W. Va.), Surface water supply of.... 1895-19fO

Penobscot River Basin (Maine), Water resources of........................ 1904-9

Potomac River Basin (D. C., Md., W. Va.)................................. 1895-1906

Rio Qrande Basin (Colo., N. Hex., Tex.). Water resources of.............. 1888-1913

St. Mary and Milk Rivers (Mont., Canada), Water supply of................ 1898-1917

St. Mary River. See St. Mary and Milk Rivers; Missouri and St. Mary

River Basin. 

Sevier Lake Basin (Utah), Utilization of surface water resources of...... 1889-1937

Susquehanna River Basin (Pa., Md.) Hydrography of........................ 1890-1904

300

447

597-E

636-D

636-E

637-A

74

197

415

1105

230

370

850

424

492

870

156

469

395

617

918

916

517

618

198

917

536

279

192

358

491

920

109

Records of discharge have been published also in State reports. Some of these are 

not contained in the publications of the Geological Survey or are revisions of records 

previously published In its water-supply papers. The following table contains a list of 

these reports.
10 SURFACE WATER SUPPLY, 1950, PART 12 

State reports containing compilations of records of discharge

State

Do.........

Colorado. .....

Connecticut. . . 

Do .........

Illinois ...... 

Do.........

Kansas..... ...

Kentucky. ..... 

Louisiana.. . . .

Mississippi. . .

Nebraska... ...

New Hampshire. 

New Jersey. . . .

New Mexico....

North Carolina

North Dakota..

Do.........

Period

1895-1915 

1904-47

1857-1928 

903-48

1881-1935 

1881-1938

1900-1937

1913-33 

1898-1946 

1895-1906 

1907-19 

1908-11 

1900-1934 

1923-27 

1927-30 

1873-1932 

1873-1940

1941-43 

1895-1919

1924-28 

1928-35 

1935 39

1910-20 

1903-38

1887-1920 

1929-37

1893-1943

1931-48 

1909-13

1900-1948 

1857-1936

1937-39

1889-1911 

1881-1938

1894-1914

1914-38 

1889-1922 

1892-1928

1928-34 

1934-40

1888-1925 

1889-1923

1889-1936

1866-1945 

1820-1945

1866-1945 

1872-1945 

1857-1945 

1919-21

1882-1938 

1882-1944

1898-1921

1898-1944 

1902-39

1898-1939 

1878-1914 

1914-24 

1924-30

Report

Special Report 20, Water Resources and Hydrology of southeastern Alaoama.

later resources of Colorado, Appendix Z, 

Data on stream-gaging stations of 

Color ado. 1 

Water resources of Colorado, Appendix 3, 

vols. 1 and 2, Stream-flow data of 

Colorado. 

Jull. 44, Water resources of Connecticut...

5th biennial report ........................

Pub. 72, Surface water supply of Indiana...

Water-Supply Bull. 1, Summaries of yearly 

and flood flow relating to- Iowa streams.. 

Water-Supply Bull. 2, Surface water 

resources of Iowa. 

Surface waters of Kansas ...................

Report of Division of Water Resources......

Surface waters of Kentucky ................. 

Qeol. Bull. 16, Surface water supply of 

Louisiana.

Flow data and draft storage curves for 

major streams in Maryland. 

Bull. 1, Summary of records of surface 

waters of Maryland and the Potomac 

River Basin. 

Bull. 5, Anne Arundel County Water Resources 

Water-resources Investigation of Minnesota. 

Bull. 68, Surface Waters of Mississippi.... 

Vol. 20, 2d series, Water resources of 

Missouri.

Missouri.

Special Rept. 10, vols. 1-4, Water resources of Montana.

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

Bull. 33, Surface water supply of New 

Jersey. 

Special Rept. 5, Surface water supply of 

New Jersey. 

Special Rept. 9, Surface water supply of 

New jersey. 

Surface water supply of Hew Mexico.. ....... 

Bull. 34, Discharge records of North 

Carolina streams. 

Bull. 39, Discharge records of North 

Carolina streams. 2 

Hydrologlc Data on the Neuse River Basin. 

Hydro logic Data on the Cape Pear River 

Basin. 

Hydrologlc Data on the Yadkln-Pee Dee River 

Basin. 

Hydrologlc Data on the Catawba and Broad 

River Basins. 

Hydraulic Data on The French Broad River 

Basin. 

Report to Governor of North Dakota on 

flood control.

Supplement B, 4th biennial report ..........

Bull. 200, Compilation of stream-flow 

records of Ohio.

Bull. Ill, Ohio stream-drainage areas and 

flow-duration tables. 

Bull. 4, Water resources of the State of 

Oregon. 

Bull. 7, Water resources of the State of 

Oregon. 

Bull. 8, Water resources of the State of 

Oregon.

Issued by

Geological Svrvey of Alabama. 

Do

Arkansas Geological Survey, 

.rkansas Resources and Development Commission; 

University of Arkansas, 

Institute of Science and 

Technology. 

State Planning Commission, 

Water Conservation Board, 

State engineer. 

Do.

State Geological and Natural 

History Su-vey. 

Jtate Water Commission, 

'lorlda Geological Survey. 

Geological Survey of Georgia. 

Do. 

livers and Lakes Commission. 

31 vision of Waterways. 

Department of Conservation. 

Do. 

Jtate Plannlrg Board. 

Iowa Geological Survey.

Do.

Kansas Water Commission. 

Do. 

State Board of Agriculture. 

Do. 

Do. 

Kentucky Geological Survey. 

Department of Conservation.

Maine Water I^wer Commission. 

State Plannirg Commission and 

Water Resources Commission. 

Department of Geology, Mines, 

and Water {("sources.

Do. 

State Drainage Commission.

Mississippi Geological Survey. 

Missouri Bureau of Oeology 

and Mines. 

Missouri Geological Survey 

and Water Resources. 

Office of the State Engineer. 

Montana Agricultural Experiment Station. 

Bureau of Wafir Power, Irrigation, and Drainage. 

Do. 

Public Service Commission. 

Department of Conservation 

and Development. 

State Water Policy Commission.

Do;

Office of the State Engineer. 

Department of Conservation 

and Development.

Do. 

Do. 

Do.

Do. 

Do. 

Do. 

State chief engineer.

State Planning Board. 

State Water Conservation 

Commission. 

Engineering Experiment Station, 

Ohio State ttalverslty. 

Do. 

Department of Agriculture, 

Division of Conservation 

and Natural Resources. 

Engineering Errorlment Station, 

Ohio State diversity. 

Office of the State Engineer.

Do. 

Do.

1 Contains records of yearly discharge only.

fe Contains records of maximum and minimum dally, weekly, and monthly discharge and yearly mean 

discharge.
PUBLICATIONS 

State reports containing compilations of records of discharge Continue?

11

State

Oregon. .......

Pennsylvania..

South Carolina 

Tennessee.... .

Do.........

Virginia......

Washington.... 

Wisconsin.... .

Period

1930-36

1890-1911

1884-1946

1874-1924 

i Qori tn

1911-16

1895-1927

1878-1933 

1888-1914

Report

Oregon.

Oregon . 

Report of the Water Supply Commission of 

Pennsylvania .

Bull. 17, Summary of records of surface 

water supply of South Carolina.

Bull. 34, Water resources of Tennessee3 ....

Bull. 31, Water resources of Virginia......

(Potoraao, Rappahannock, and York River 

Basins).

(James River Basin).

(Roanoke and Chowan River Basins).

(New, Tennessee, and Big Sandy River 

Basins) . 

Bull. 5, Monthly and yearly summaries of 

hydrometrlc data. 

1st report of Railroad Commission of Wisconsin to Legislature on water powers.

oonsln to Legislature on water powers.

Issved by

Office of the State Engineer.

Water Supply Commission of 

Pennsylvania . 

Department of Forests and

Waters .

South Carollra Research, 

Planning ard Development 

Board . 

Department of Education. 

Do.

Office of thr State Engineer.

Do.

Do.

Virginia geological Survey. 

Virginia Conservation Commission. 

Do.

Do.

Do.

Department of Conservation 

and Development. 

Railroad Comnlsslon of Wisconsin. 

Do.

3 Includes records of discharge for all stations In North Carolina In the Tennessee River Basin.

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

have issued annual or biennial reports In which are contained records of discharge: California, 

Colorado, Connecticut, Idaho, Indiana, Kansas, Maine, Missouri, Montana, Nebraska, Nevada, New 

Mexico, New York (also New York City Board of Water Supply and city of Rochester), »->rth Dekota, 

Oregon, Pennsylvania, Rhode Island, South Dakota, Washington, and Wyoming.

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 noteworthy floods. The following list gives the numbers and titles of these reports:

Water-Supply Title 

Paper

88 The Passaic flood of 1902.

92 The Passaic flood of 1903.

96 Destructive floods in the United States in 1903.

147 Destructive floods in the United States in 1904.

162 Destructive floods in the United States in 1905.

334 The Ohio Valley flood of March-April 1913.

426 Southern California floods of January 1916.

487 The Arkansas River flood of June 3-5, 1921.

488 The floods in central Texas in September 1921.

520-G Some floods in the Rocky Mountain region.

636-C The New England flood of November 1927.

771 Floods in the United States, magnitude and frequency.

773-E The New York State flood of July 1935.

796-B Flood on Republican and Kansas Rivers, May and June 1935.

796-C Flood in La Canada Valley, Calif. January 1, 1934.

796-G Major Texas floods of 1935.

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

799 The floods of March 1936, part 2, Hudson River to Susquehanna River region.

800 The floods of March 1936, part 3, Potomac, James, and upper Chio Rivers.

816 Major Texas floods of 1936. . . . . _

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

838 Floods of Ohio and Mississippi Rivers, January-February, 193,.

842 Floods in Canadian and Pecos River Basins of New Mexico, May and June 1937.

843 Floods of December 1937 in northern California.

844 Floods of March 1938 in southern California.

847 Maximum discharges at stream-measurement stations through September 19.38.

867 Hurricane floods of September 1938.

869 Flood of August 1935 in Muskingum River Basin, Ohio.

914 Texas floods of 1938 and 1939.

966 Minor floods of 1938 in North Atlantic States.

967-A Floods of September 1939 in Colorado River Basin below Boulder (Hoover) Dam.

967-B Flood of July 5, 1939, in eastern Kentucky.

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

994 Cloudburst floods in Utah, 1850 to 1938.

997 Floods in Colorado.

1046 Texas floods of 1940. 1066 Floods of August 1940 in the southeastern States.

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

1134-A Floods of August 4-5, 1943 in Central West Virginia.

1134-B Floods of July 18, 1942 in North Central Pennsylvania.

1137-A Missouri River Basin Floods of April-May 1950 in North and South Dakota.
12 SURFACE WATER SUPPLY, 1950, PART 12

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The following table contains a list of gaging stations for the area covered by this 

report at which records of daily discharge were collected during the water year October 

1949 to September 1950 by agencies other than the Geological Survey. The records for these 

stations are not contained in the publications of the Geological Survey except as noted. 

Records of discharge collected by agencies other than the Geological Survey

Stream

Clearwater River. ...... 

Crow Creek. ............

Flathead Plver. ........

Flint Creek, North Fork

Little Blacktall Creek.

Monture Creek. ......... 

Prospect Creek. ........

Reservation drain. .....

DO ..................

Stewart Mill Springs...

Toppenlsh Creek. ....... 

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

Location

Near Seely Lake, Mont.. 

At Montana Power substation near Thompson 

Falls, Mont. 

Near Kalispell, Mont...

Kallspell. Mont. 

At Georgetown Lake, 

near Anaconda, Mont.

At Nine Mile Inn, near 

Butte, Mont.

near Lolo, Mont. 

Near Ovando , Mont ...... 

Below Montana power 

substation near 

Thompson Falls, Mont. 

Alfalfa. Wash. .........

Creek, near Toppenlsh, Wash, 

Near Satus , Wash. ..... 

Near Georgetown Lake, 

near Anaconda, Mont. 

Near Fort Slmcoe, 

Wash. 

Near Alfalfa, Wash.....

Period

1949-50 

1949-50*

1946-50*

1949-50

1949-50

1949-50 

1949-50*

1912-50

1932-50 

1949-50*

1909-50 

1932-50

1910-15, 

1940-50

Collected by

Bureau of Reclamation. 

U. S. Forest Service..

Bureau of Reclamation.

U. S. Forest Service..

U. S. Forest Service..

Bureau of Reclamation. 

U. S. Forest Service..

Office of Indian 

Affairs.

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

U. S. Forest Service,.

Office of Indian 

Affairs. 

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

Remarks

Unpublished. 

Do.

 ( Unpublished 

since 1945.

Unpublished.

Do.

Do. 

Do.

 ( Unpublished 

since 1923.

since 1924.

Unpublished. 

Do.

 ( Unpublished 

since 1924. 

Unpublished.

since 1915.

* Gage heights only.

t Records for earlier years published in water-supply papers of Geological Survey.

* Fragmentary.

Note.--Records of daily discharge for many canals and drains in Washington and Montana for 1950 

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

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

These records have not been published. The Northern Rocky Mountain Forest and Range Experiment 

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

COOPERATION

The work in the several States was done under cooperative agreements with the organizations listed below:

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

engineer.

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

Board.

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

director, and C. J. Bartholet, supervisor of hydraulics for the department; State 

Department of Fisheries, Alvin Anderson, director; State Department of Game, 

D. W. Clarke, director; State Department of Highways, W. A. Bugge, director, 

cities of Aberdeen, Bellingham, Bremerton, Everett, Olympia, Seattle, ard Tacoma; 

Intercounty River Improvement Commission; Grays Harbor County Utility District 

No. 1, Lewis County Public Utility District No. 1; and Douglas, pacific, Skagit, 

and Whatcom Counties.

Financial assistance was furnished by the Corps of Engineers, for the operation of four 

gaging stations in Idaho, four in Montana, and ten in Washington.

Acknowledgment of financial assistance in collecting records published herein is due to 

the United States Department of State, the United States Department of the Army, the United
DIVISION OF WORK 13

States Department of the Navy, and the Bureau of Reclamation and the Office of Indian 

Affairs of the United States Department of Interior. Assistance was also furnished by the 

Soil Conservation Service of the United States Department of Agriculture and the Weather 

Bureau of the United States Department of Commerce. Acknowledgment is due to the Forest 

Service of the United States Department of Agriculture and the Weather Bureau for occupation permits and furnishing special reports of watershed conditions and precipitation 

records.

Full cooperation exists between this organization and the Water Resources Division, 

Department of Resources and Development, Canada. On waters adjacent to the international 

boundary certain stations are maintained jointly by the United States and Canada under the 

terms of the Boundary Waters Treaty of 1909 , and others are maintained under a subsequent 

agreement between the two Governments. The records from all these stations are obtained 

in such a manner as to be equally acceptable and available in either country. These stations are herein designated "international gaging stations."

Assistance in collecting the records was also rendered by the following o"ganizations:

Idaho: Washington Water Power Co.

Montana: Montana Power Co.

Washington: Crown Zellerbach Corporation; Puget Sound Power & Light Co.; 

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

DIVISION OF WORK

The stream-gaging work was conducted by the water resources division of the Geological 

Survey, Carl G. Paulsen, chief hydraulic engineer and Joseph V. B. Wells, chief of the 

surface water branch. The data for the stations in the several States were collected and 

prepared for publication under supervision of district engineers as follows: In Idaho 

and for Clark Fork near Heron, Mont., T. R. Newell; in Montana (except for station noted), 

A. H. Tuttle until Dec. 31, 1949, succeeded by Frank Stermitz on Jan. 3, I960; in Washington, F. M. Veatch.

Tno records were reviewed and the manuscript prepared for publication unc?er the direction of B. J. Peterson, chief, annual reports section.
14 GAGING-STATION RECORDS

Pacific slope basins north of Columbia River

NASELLE RIVER BASIN 

Naselle River near Naselle, Wash.

Location.--Staff gage, lat. 46°22'25", long. 123°44'45", In SWir see. 1, T. 10 N., R. 9 

W., ij miles upstream from Salmon Creek and 3j miles east of Naselle.

Drainage area. 55 square miles.

Records available.--May 1929 to September 1950.

Average discharge.-=^1 years, 423 second-feet.

extremes.--Maximum discharge during year, 5,710 second feet Feb. 24 (gage height, 10.8 

feet, from graph based on gage readings); minimum observed, 23 second-feet Oct. 3; 

minimum gage height observed, 1.95 feet Sept. 22-24.

1929-50: Maximum discharge, 10,400 second-feet Jan. 22, 1935 (gage height, 15.9 

feet, from floodmarks), from rating curve extended above 3,900 second-feet; minimum 

observed, 19 second-feet Sept. 12, 14, 1949; minimum gage height observed, 1.72 feet 

Aug. 29, 1935.

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

read twice daily. No diversion or regulation.

Revisions.--W 932: Drainage area.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

28

25

24

69

166

161

125

90

442

297

265

216

177

155

145

132

114

104

98

92

88

84

a80

75

69

78

92

930

484

338

252

Nov.

203

194

177

166

150

138

130

197

509

364

1,090

2,790

2,050

1, 120

731

552

438

375

319

279

255

356

459

1,350

1,560

2,790

3,910

1,770

1,060

805

-

Dec.

880

1,630

1,170

930

756

614

509

438

410

a360

323

301

294

272

272

294

391

488

406

375

430

880

1,470

1,530

1,600

1,290

2,330

4,070

2,470

1,470

1,040

Jan.

780

592

497

430

379

637

660

548

488

805

637

539

459

360

330

294

265

241

683

3,750

4,390

3,670

2,190

1,230

855

683

535

442

368

315

279

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April . ... ...................

May ... ......................

June . . .......................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

258

241

248

379

353

637

756

2,050

1,170

915

930

1,260

3,030

1,980

3,350

2,630

1,560

1,090

880

756

707

805

1,910

4,810

3,590

3,430

1,980

1,200

_

-

Secondfoot-days

5,495

26, 287

140,466

28 331 42)905 37,725

15, 821

5,990 

2 * iCT 337

1, 933 

1,567

199,535

Mar.

855

1,040

2,630

3,430

3,670

2,050

1,230

905

805

660

574

484

447

399

548

1,440

2,400

1,840

1,770

1,260

980

905

805

1,260

1,090

905

880

756

637

548

522

Maximum

93C

3,910

4,070

7,140

4,390

4,810

3,670

1,380 

350

104

164

174

4,810

Apr.

683

614

637

552

492

451

383

372

345

315

304

637

492

463

1,120

1,380

1,290

905

683

570

442

410

360

323

294

269

290

272

245

228

May

252

248

232

245

341

a350

294

272

255

238

222

206

197

186

172

169

177

180

169

164

158

148

140

135

130

125

a!22

120

120

114

109

Minimum

24

130

272

19

241

241

399

228

56

29

29

30

24

June

104

100

96

92

90

86

90

94

90

84

78

73

73

73

73

71

69

69

64

62

62

75

84

88

78

71

68

64

60

56

Mean

177

qSH

385

914

1 532 1)217 527

193

77.9

46 . 8

62.4

52.2

547

July

a54

a51

48

45

45

45

45

45

56

46

42

41

39

39

37

36

35

35

35

42

36

33

33

30

30

29

30

94

138

77

60

Per

square 

mile

3 22

15 9

17.4

7.00

16.6

27.9

22.1

9 58

z'.si

1.42

.851

1.13

.949

9.95

Aug.

50

45

42

40

37

42

42

39

35

33

33

30

29

32

120

138

88

69

58

50

48

48

78

164

114

92

82

73

68

58

56

Sept.

52

52

49

49

46

44

44

41

40

40

39

39

37

37

36

36

35

34

34

33

32

30

30

46

135

174

109

77

61

56

Runoff

Inches Ac re- feet

3.72 10,900

17.77 52,140

94.99 278,600

19.16 56,190

29.01 85,100

25,51 74,830

10.70 31,380

4.05 11,880

1.58 4,640

.98 2,880

1.31 3,830

1.06 3,110

134.93 395,800

a No gage-height record; discharge interpolated or computed on basis of records for "nearby streams. 

Note. Shifting-control method used Feb. 24 to Sept. 30.
NEMAH RIVER BASIN 15

North Nemah River near South Bend, Wash.

Location. Water-stage recorder, lat. 46°29'30", long. 123°50'00", in SE£ sso. 30, T. 12 

M., K. 9 W., 500 feet downstream from Finn Creek, 5 miles upstream from mouth, and 

12 miles south of South Bend.

Drainage area. 18.0 square miles.

Records available. February 1946 to September 1950.

Extremes. Maximum discharge during year, 1,330 second-feet Feb. 24 (gage height, 7.50 

reet); minimum, 6.9 second-feet Oct. 2, 3.

1946,-50: Maximum discharge, 1,550 second-feet Dec. 11, 1946, Feb. 10, 1949; maximum gage height, 8.21 feet Dec. 11, 1946; minimum discharge, 6.6 second-feet Sept. 27, 

1949.

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

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.5 

7.2 

7.2 

25 

36

39 

26 

22 

96 

60

50 

43 

37 

33 

35

29 

26 

25 

23 

22

22 

21 

21 

20

19.5

22 

30 

318 

102 

69 

55

Nov.

47 

43 

39 

36 

35

34 

34 

59 

128 

84

288 

549 

404 

233

141

102 

84 

72 

62 

57

51 

97 

143 

323 

371

602 

830 

424 

263

198

Dec.

262 

393 

286 

203 

168

128 

106 

92 

89 

79

70 

66 

62 

58 

65

70 

111 

109 

90 

89

106 

236 

424 

414 

444

382 

724 

955 

631 

464 

360

Jan.

268 

206 

168 

143 

136

260 

240 

198 

176 

404

290 

210 

173 

136 

122

109 

99 

90 

307 

880

855 

759 

556 

382 

297

268 

231 

203

185 

173 

al60

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

Julji 

Augu 

Sept

Wa

lend&r year 194S 

ary

*uary

h .........................

ember .....................

ter year 1949-50 ..........

Feb.

al40 

a!30 

a!30 

187 

187

297 

305 

644 

402 

326

306 

354 

713 

493 

644

535 

373 

297 

268 

243

233 

247 

620

1,000 

736

690 

452 

326

Secondfoot-days

1,34,8.4 

5,833 

7,736

35,182.4

8,684 

11,278 

9,224 

4,204 

1,779 

772 

568.5 

633.0 

501.5

52,561.4

Mar.

253

278 

524 

736 

759

268 

316 

255 

229 

203

183 

166 

153 

140 

149

335 

556 

472 

422 

306

249 

225 

239 

373 

297

245 

223 

201 

175 

155 

139

Maximum

318 

830 

955

1,150

880 

1,000 

759 

344 

98 

39 

65 

57 

44

1,000

Apr

160 

164 

155 

142 

130

122

106 

97 

90 

83

97 

170 

128 

128 

344

344 

297 

223 

175 

147

125 

114 

100 

90 

84

77 

93 

79 

72 

68

May

61 

70 

66 

76 

90

98 

91 

83 

77 

71

67 

62 

59 

55 

53

50 

57 

55 

51 

48

47 

45 

42 

41 

39

38 

41 

37 

39 

36 

34

Minimum

7.2 

34 

58

6.6

90 

130 

139 

68 

34 

18 

14 

14.5 

11

7.2

June

32 

32 

30 

29 

29

27 

30 

30 

27 

26

24 

24 

24 

24 

24

23 

23 

22 

22

21

20 

29 

39 

32 

26

23 

23 

20 

19

18

Mean

43.5 

194

250

96.4

280 

403 

298 

140 

57.4 

25.7 

18.3 

20.4 

16.7

144

July

16.5 

16.5 

16 

16.5 

16

16 

16 

16.5 

17.5 

16.5

15 

15 

15 

16 

15

15 

15 

14.5

17.5 

16

14.5 

14.5 

14.5 

15 

14.5

14 

14.5 

65 

40 

24 

20

Per 

square 

mile

2.42 

10.8 

13.9

5.36

15.6 

22.4 

16.6 

7.78 

3.19 

1.43 

1.02 

1.13 

.928

8.00

Aug.

19 

18 

17.5 

16 

16

16.5 

16 

16 

15 

15

14.5 

15 

15 

17.5 

57

32 

22 

19 

19 

18

16.5 

17.5 

30 

35 

24

21 

20 

19 

19 

19 

18

Sept.

18 

18 

17.5 

17.5 

17.5

16.5 

16.5 

al6 

al5 

a!4.5

al4 

a!3 

a!2.5 

a!2 

all. 5

all. 5 

all. 5 

a!2 

12

12

11 

11 

11 

30 

32

44 

23 

19 

16.5 

15

Runoff

Inches

2.79 

12.05 

15.98

72.68

17.94 

23.30 

19.06 

8.69 

3.68 

1.60 

1.17 

1.31 

1.04

108.61

Acre-feet

2,670 

11,570 

15,340

69,790

17,220 

22,370 

18,300 

8,340 

3,530 

1,530 

1, 130 

1,260 

995

104, 300

Peak discharfte (base. 930 sec .-ft .) . Nov. 27 (3:30 a.m.} 1.120 see. -ft.: Dec. 27 (10 p.m.) 1,270

ec.-rt.; jan. zu \i± a.m.j atiu sec.-re.; reo. zt \.t a.m.; i,aau sec.-it. 

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

Note..--Shifting-control method used Oct. 1-8, Feb. 25 to Aug. 11.
16 WILLAPA RIVER BASIN

Willapa River at Letam, Wash.

Location.--Water-stage recorder, lat. 46°33'50", long. 123°33'50", in SW^ sec. 33 T. IS 

K., R. 7 W., half a mile west of Lebam and 1 mile upstream from Walker Creek.

Drainage area.--41.4 square milec.

Records available.--June 1948 to September 1950.

Extremes.--Maximum discharge during year, 3,040 second-feet Nov. 27 (gage height, 12.90 

feet); minimum, 4.8 second-feet Oct. 2, 3 (gage height, 2.46 feet).

1948-50: Maximum discharge, 4,930 second-feet Fet. 22, 1949 (gage height, 17.53 

feet, from high-water mark in gage house), from rating curve extended above 2,200 

second-feet; minimum, 3.6 second-feet Sept. 12, 28, 1949.

Remarks. Records good except those above 1,000 second-feet, which are fair. No diversion 

or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day! Oct.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

5.4

5.4

5.4

11

32

29

21

13.5

20

30

26

24

19

16

15.5

14.5

12.5

11.5

11.5

11

11

11

9.9

9.0

9.0

9.0

13.5

156

73

46

36

Nov.

28

25

22

19

17

16

16

32

86

83

386

1,430

654

308

205

153

115

105

90

74

65

98

151

335

468

1,370

1,920

875

552

400

-

Dec. Jan.

573

785

524

372

359

281

231

190

185

161

137

130

115

105

103

111

178

195

153

142

156

190

543

638

624:

552

1,180

1,940

1,300

875

624

454

337

273

E34

205

400

426

351

316

710

510

 

Feb.

168

156

144

231

242

482

609

1,310

755

580

524

3721 510

289; 995

231 785

195

158

137

115

53 a

1,790

1,920

1,580

1,060

682

468

413

332

276

239

210

L ^

Month

October . .... .............

November . ....................

December . . ...................

Calendar year 1949 ..... .

January .... ..................

February . . . . . .... .........

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

April ........... .......

May . ..... ... ...... ...

June .......... ...........

July .......................

August ........ ...... .... . ,

September ... .................

Water year 1949-50 ..........

965

875

624

482

428

359

308

289

512

1,250

1,440

1,470

875

580

_

_

-

Secondfoot-days

717.6

10,098

13,662

61,564

15,415

17,946

17,193

6,978

2 391

773.5

356i4

413 . 7

322.5

86,266.7

Mar

426

413

767

1,540

1,620

Apr

297

294

275

255

May

12H

111

103

105

?34 : 120

965 216 122

638 190

482 192

413 165

348 ' 151

297

262

239

216

218

400

845

735

845

624

496

496

524

652

552

468

153

T62

229

218

400

462

482

386

313

262

223

203

ISO

153

144

130

413! 137

37? 128

329 115

289 109

257

Maximum

156

1 920

l!s40

3,500

1,920

1,470

1,620

462

36

29

41

45

1,940

-

ISO

109

105

99

92

86

80

74

71

70

76

83

66

62

58

56

53

50

46

43

45

43

42

41

38

Minimum

5.4

16

103

3.6

115

144

216

109

38

15.5

7.6

7.2

7.2

5.4

June

36

34

33

28

28

28

34

33

28

28

27

26

26

26

25

25

22

24

21

21

21

20

2B

34

26

21

19

19

16

15.5

-

Mean

23.1

337

441

169

497

641

555

233

77.1

25.8

11.5

13.3

10.8

236

July Aug.

14.5

1C. 5

12.5

11.5

j.1.5

11.5

9.9

9.9

13.5

13.5

11.5

9.9

9.0

9.9

9.0

9.0

9.0

9.0

11.5

11.5

9.0

9.0

8.4

8.4

7.8

7.8

8.4

21

29

16

11.5

Per 

square 

mile

0.558

8.14

10.7

4.08

12.0

15.5

13.4

5.63

1.86

.623

.278

.321

.261

5.70

9.0

3.0

3.4

7.8 ^.8

Sept

9.0

8.4

8.4

8.4

8.4

3.4 .8

3.0 j .8

3.01 .8

3.4 .8

7.8

7.2

7.2

7.2

7.2

30

26

1

1

6

1.5

9.9

9.0

9.0

2

4

9.0

8

j.

27

19

1

1

1

1

7

5.5

1.5

1

9.9

.8

.8

.2

.6

.6

.8

.2

.2

.2

. 2

. 2

.2

.2

7.2

11

29

45

22

15.5

12.5

9.9

"

Runoff

Inches

0.64

9.07

12.27

55.29

13.85

16.12

15-44

6.27

2.15

.69

.32

.37

.29

77.48

Acre-feet

1,420

20,030

27,100

122,100

30,580

35,600

34,100

13,840

4,740

1,530

707

821

G40

171,100
WILLAPA RIVER BASIN 17

Wlllapa River near Willapa, Wash.

Location.--Water-stage recorder, lat. 46°39'00", long. 123°38'40", in NW-jj see. 2, T. 13 

n., H. 8 W., just below Mill Creek and 2^ miles southeast of Willapa.

Drainage area. 130 square miles.

Records available.--August 1947 to September 1950 (fragmentary prior to August 1948).

Extremes.--Maximum discharge during year, 8,450 second-feet Dec. 28; maximum gage height, 

19.45 feet Nov. 27; minimum discharge, 27 second-feet Oct. 2, 3 (gage height, 3.07 

feet).

1947-50:- Maximum discharge, 11,400 second-feet Feb. 22, 1949 (gage height, 24.22 

feet), from rating curve extended above 7,300 second-feet; minimum, 24 second-feet 

Sept.. 12-14, 1949 (gage height, 3.00 feet).

Remarks. Records excellent except those for periods of ice effect or shifting control, 

wnicn are fair. No diversion or regulation.

Rating table, water year 1949-50, except periods of ice effect or shifting control 

(gage height, in feet, and discharge, in second-feet)

3.0 22 4.6 270 9.0 2,050 

3.2 36 5.0 390 10.0 2,550 

3.4 54 5.5 565 12.0 3,600 

3.7 89 6.0 750 14.0 4,800 

4.0 137 7.0 1,150 16.0 6,000 

4.3 195 8.0 1,550 18.1 7,470

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8

iS

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

29 

28 

28 

35 

109

119 

103 

70 

153 

200

142 

121 

95 

77 

72

64 

57 

54 

49 

47

46 

46 

44 

43 

42

43 

48

811 

404 

215 

157

Nov.

123 

105 

93 

84 

79

74 

69 

109 

478 

357

1,280 

3,970 

2,620 

1,310 

890

690 

548 

478 

394 

345

309 

375 

652 

1,510 

1,800

3,510 

6,800 

3,090 

2,100 

1,550

Dec.

1,600 

2,950 

2,050 

1,470 

1,350

1,150

990 

850 

810 

750

635 

600 

565 

512 

512

530 

790 

870

750 

670

750 

990 

1,800 

2,300 

2,250

2,050 

3,730 

7,460 

4,770 

*3,300 

2,600

Jan.

2,000 

1,550 

1,310 

1,230 

1,110

2,000 

1,800 

1,510 

1,390 

2,450

2,150 

1,650 

1,390 

1,190 

1,070

950 

870 

830 

1,570 

5,720

6,630 

5,770 

3,720 

2,350 

1,550

1,350 

1,150 

970 

830 

b700 

b580

Feb. I Mar.

bSOO 

*b460 

b440 

652 

710

1,230 

1,550 

3,840 

2,450 

1,850

1,650 

1,600 

3,000 

2,550 

3,050

3,050 

2,100 

1,550 

1,390 

1,190

1,030 

1,070 

1,820 

4,770 

4,720

5,080 

2,980 

2,000

it ~*v. SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Jam, 

Febr 

Marc 

Apr: 

Hay 

June 

Julj 

Augu 

Sept

Wa

lendar year 194E 

ary

h . .........

ember . .

3,551 

35,792 

52,404

12,290

59,340 

58,282 

57,250 

25,599 

8,806 

2,931 

1,847 

2,096 

1,479

ter year 1949-50 .......... 309, 377

1,430 

1,350 

2,550 

4,700 

5,360

3,200 

2,150 

1,600 

1,350 

1,190

1,010 

890 

830 

750 

730

1,330

2,950 

2,500 

2,800 

2,050

,600 

,600 

,550 

,350 

,950

,550 

,510 

,350 

,150 

,010 

910

Maximum

an 

6,aoc

7,460

10,000

G,B30 

5,080 

5.36C 

1,800 

495 

126 

175 

193 

200

7,460

Apr.

1,070 

1,110 

1,030 

930 

850

790 

710 

670 

635 

565

565 

950 

830 

750 

1,470

1,750 

1,800 

1,390 

1,110 

950

810 

730 

670 

582 

530

495 

530 

49.5

432 

400

May

432 

428 

390 

387 

495

495 

453 

408 

375 

357

330 

318

294 

270

252

240 

265 

300 

240 

222

208 

198 

183 

175 

169

167 

169 

155 

155 

141 

135

Minimum

28 

69 

512

24

580 

440 

730 

400 

135 

75 

36 

33 

30

28

June

126 

119 

114 

108 

103

103 

114 

116 

105 

99

96 

92 

93 

93

92

89 

88 

88

86 

84

84 

86 

117 

121 

102

90 

85 

85 

77 

75

Mean

115 

1,193 

1,690

582

1,914 

2,082 

1,847 

853 

284 

97.7 

59.6 

67.6 

49.3

848

Peak discharge (base, 5,000 sec .-ft .) .--Nov. 12 (4:30 p.m.) 5,760 sec.

P

sq 

m

July

72 

68

65 

64 

64

62 

61 

60 

64 

64

61

56 

53 

52 

51

50

48 

47 

52 

53

46 

42 

40 

39 

36

37 

38 

80 

175 

85 

62

Aug

52 

45 

42 

41 

39

40 

42 

41 

38 

36

35 

34 

33

35 

175

183 

100 

77 

65 

58

53 

50 

71 

193 

123

90 

75 

65 

59 

55 

51

Sept.

47 

44 

43 

43

42

41 

39 

38 

37 

36

36 

35 

35 

35 

35

35 

34 

33 

33 

32

31 

30 

30 

37 

102

200 

111 

74 

59 

52

er Runoff

L ^e Inches

0.885 1.02 

9.18 10.24 

13.0 14.99

4.48 60.74

14.7 16.98 

16.0 16.67 

14.2 16.38 

6.56 7. 32 

2.18 2.52 

.752 .84 

.458 .53 

.520 .60 

.379 .42

6.52 £8.51

-ft.; Nov. £7 (8

Acre-feet

7,040 

70,990 

103,900

421,000

117,700 

115,600 

113, 600 

50,770 

17,470 

5,810 

3,660 

4,160 

2,930

613,600

a.m.) 8,380

sec.-ft.; Dec. 28 (5:30 a.m.) 8,450 sec.-ft.; Jan. 20 (8 p.m.) 7,050 sec.-ft.; Feb. 24 (7 a.m.) 

5,760 see.-ft.; Feb. 26 (8 a.m.) 5,760 sec.-ft.; Mar. 5 (9 a.m.) 6,000 sec.-ft.

* Winter discharge measurement made or this day.

b Stage-discharge relation affected by ice.

Note. Shifting-control method used Dec. 28 to Jan. 24, Aug. 15 to Sept. 26.
18 NORTH RIVER BASIN

North River near Raymond, Wash.

Location.--Water-stage recorder, lat. 46°49', long. 123 0 51', in sec. 6, T. 15 N., R. 9 W., 

ltj mij.es upstream from Salmon Creek and 10 miles northwest of Raymond.

Drainage area. 219 square miles.

Records available.--August 1927 to September 1950.

Average discharge.--23 years, 924 second-feet.

Extremes. Maximum discharge during year, 10,700 second-feet Dec. 29 (gage height, 9.27 

reet); minimum, 46 second-feet Sept. 23 (gage height, 1.25 feet), but may have been 

less during period of doubtful gage-height record in September.

1927-50: Maximum discharge, 35,000 second-feet Dec. 10, 1933 (gage height, 15.8 

feet, from floodmarks) , from rating- curve extended above 6,300 second-feet; minimum, 

24 second-feet Sept. 17, 1938 (gage height, 1.18 feet).

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

wnicn are poor. No diversion or regulation.

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

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

1.2 40 2.3 286 4.0 1,600 6.0 4,380 

1.4 66 2.6 410 4.5 2,240 7.0 6,020 

1.7 120 3.0 650 5.0 2,920 8.0 7,910 

2.0 190 3.5 1,060 5.5 3,630 9.0 10,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

48 

48 

48 

79 

135

219 

204 

193 

332 

324

406 

282 

245 

193 

169

143

137 

122 

106 

102

100 

95 

89 

87 

86

91 

159 

1,250 

1,720 

832 

490

Nov.

370 

297 

262 

229 

207

199 

185 

262 

484 

629

1,110 

2,300 

3,930 

3,410 

1,920

1,270 

997 

824 

685 

601

538 

601 

889 

1,980 

2,850

3,780 

5,840 

6,380 

4,840 

3,200

Dec.

2,640 

3,060 

3,480 

2,710 

2,110

1,850 

1,470 

1,250 

1,130 

1,110

979 

889 

872 

840 

832

840 

988 

1,300 

1,320 

1,120

1,110 

1,600 

2,710 

3,780 

4,080

3,780 

5,470 

9,560 

10,000 

6,750 

4,380

Jan.

3,500 

3,000 

2,500 

2,200 

2,000

1,900 

2,800 

2,600 

2,400 

2,300

3,500 

2,900 

2,400 

2,100 

1,800

1,600 

1,500 

1,400 

1,300 

f4,720

6,940 

7,320 

6,750 

5,000 

f3,130

2,300 

1,920 

1,580 

1,320 

1,120 

1,010

Feb.

900 

840 

800 

880 

1,020

1,290 

1,660 

3,130 

3,930 

2,990

2,570 

2,710 

4,080 

4,380 

4,080

3,930 

3,200 

2,440 

2,180 

1,920

1,780 

1,780 

2,630 

5,500 

7,130

7,130 

6,020 

4,230

Month SecondMonth foot-days

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1949 

ary

.... 3

ember .....................

8,534 

51,069 

84,010

18,335

86,810 

85, 130 

85,370 

36,674 

12,886 

5,182 

3,059 

3,209 

2,768

ter year 1949-50 .......... 464,701

Mar.

2,780 

2,370 

3,630 

5,670 

7,510

6,200 

4,230 

2,920 

2,370 

2,110

1,850 

1,600 

1,420 

1,280 

1,210

1,920 

3,480 

4,080 

3,780 

3,480

2,710 

2,240 

1,980 

2,300 

2,370

1,980 

1,850 

1,780 

1,590 

1,410 

1,270

Maximum

1,720 

6,380 

10,000

10,000

7,320 

7,130 

7,510 

2,780 

629 

225 

248 

235 

365

10,000

Apr

1,330 

1,360 

1,520 

1,390 

1,260

1,150 

1,030 

952 

864 

792

784 

1,060 

1,150 

1,040 

1,850

2,780 

2,780 

2,300 

1,720 

1,400

1,170 

1,030 

961 

856 

776

699 

699 

713 

664 

594

May

601 

629 

601 

562 

574

622

594 

550 

502 

478

455 

435 

406 

388 

374

353 

365 

420 

455 

383

357 

328 

316 

294 

282

268 

268 

265 

262 

251 

248

Minimum

48 

185 

832

35

1,010 

800 

1,210 

594 

248 

126 

64 

58 

50

48

June

225 

219 

210 

196 

187

185 

190 

204 

210 

193

177 

167 

164 

164 

164

159 

152 

150 

155 

148

141 

146 

167 

202 

199

167 

143 

139 

133 

126

Mean

275 

1,702 

2,710

872

2,800 

3,040 

2,754 

1,222 

416 

173 

98.7 

104 

92.3

1,273

Peak discharge (base, 4,000 sec. -ft,). Nov. 13 (6 D.m.) 4.080 sec. -ft

July

120 

114 

106 

102 

100

100 

96 

98 

100 

102

102 

98 

93 

86 

82

80 

78 

76 

82 

82

74 

70 

68 

66 

64

64 

66 

116 

174 

248 

152

Per 

square 

mile

1.26 

7.77 

12.4

3.98

12.8 

13.9 

12.6 

5.58 

1.90 

.790 

.451 

.475 

.421

5.81

Aug.

114 

95 

80 

74 

70

68 

72 

70 

64 

60

58 

58 

64 

100 

210

199 

235 

143 

114 

96

84 

80 

102 

148 

157

141 

114 

96 

86 

80 

77

Sept.

72 

d68 

d66 

d64 

d62

d60 

d58 

d56 

d54 

53

53 

53 

d52 

d52 

51

51 

52 

52

53 

51

d50 

d50 

50 

104 

159

365 

328 

244 

159 

126

Runoff

Inches

1.45 

8.67 

14.27

54.05

14.74 

14.46 

14.50 

6.23 

2.19 

.88 

.52 

.54 

.47

78.92

; Nov. 28 (12 m

Ac re- feet

16,930 

101,300 

166,600

631,400

172,200 

168,900 

169,300 

72,740 

25,560 

10, 280 

6,070 

6,360 

5,490

921,700

) 6,380

sec.-ft.j Dec. 29 (9:30 a.m.) 10,700 sec.-ft.; Jan. 22 (7 a.m.) 7,510 sec.-ft.; Feb. 14 (4 a.m.) 

4,530 sec.-ft.; Feb. 25 (l p.m.) 7,510 sec.-ft.; Mar. 5 (5 a.m.) 7,910 sec.-ft.; Mar. 18 (7 p.m.) 

4,230 sec.-ft.

d Doubtful gage-height record; discharge computed on basis of records for nearby st-eams.

f Computed en basis of partly estimated gage-height record.

Note. No gage-height record Jan. 1-19, Feb. 1-4, July 16-27, Aug. 3-14; discharge computed on 

basis of weather records and records for nearby streams.
CHEHALIS RIVER BASIN 19

Chehalis River near Doty, Wash.

Location, Staff gage, lat. 46°37'00", long. 123°16'40", In NW£ see. 14, T. 13 N., R. 5

 W., l| miles upstream from Elk Creek, if miles south of Doty, and 3f miles north of 

Pe Ell.

Drainage area. 113 square miles.

Records available. October 1939 to September 1950.

Average discharge. 11 years, 530 second-feet.

Extremes. Maximum discharge observed during year, 11,400 second-feet Nov. 27 (gage height,

 u.24 feet); minimum observed, 28 second-feet Oct. 1.

1939-50: Maximum discharge, 18,100 second-feet Feb. 7, 1945 (gage height, 17.80 

feet, water over gage; discharge based on observer's estimate of maxlmuir gage height); 

minimum observed, 22 second-feet Aug. 18-21, 26, 1940, but may have beer less during 

period Oct. 1-3, 1939, before gage was Installed.

Remarks. Records good. Gage read twice dally. No diversion or regulation.

1.3 83

1.5 138

1.7 185

2.0 292

Rating tables, water year 1949-50, except period of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-4, 8, 9, 16-26)

Oct. 1 to Nov. 26

2.5 519

3.0 800

4.0 1,480

5.0 2,180

6.0 2,980

7.0 3,830

8.0 4,730

0.9

1.1 

1.4 

1.7 

2.0

Nov. 27 to Sept. 30

28

52

110

201

325

2.5 

3.0

4.0 

5.0 

6.0

560

810

1,400

2,100

2,850

7.0

8.0

9.0

10.0

11.0

3,700

4,700

5,800

7,000

8,300

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

29

29

30

35

161

144

131

89

93

215

192

173

150

128

111

93

83

74

69

62

60

57

54

49

54

57

1,480

800

445

273

198

Nov.

161

139

123

106

100

96

91

114

254

312

445

4,550

2,500

993

653

494

375

332

292

247

225

232

421

1,480

1,760

3,220

8,170

2,690

1,680

1,160

-

Dec.

1,040

2,310

1,750

1,340

1,100

860

760

660

585

535

460

438

415

415

415

460

535

510

460

438

585

860

2,100

2,530

2,030

1,750

3,430

«5,470

3,610

2,240

1,540

Jan.

1,100

860

760

635

560

760

760

635

610

760

660

635

535

460

415

392

348

302

392

3,090

4,600

4,500

2,930

2,240

1,540

1,040

980

760

635

535

b450

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ........ .............

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

April .........................

May

June ..........................

July ..........................

August . . .....................

September .....................

Water year 1949-50 ..........

Feb.

*b373

b360

b355

b370

585

710

810

1,280

1,400

1,220

1,470

1,960

3,010

2,530

3,700

3,700

2,690

1,680

1,400

1,280

1,100

1,040

1,680

5,580

5,360

4,200

2,380

1,280

_

_

-

Secondfoot-days

5, 618

33, 415

41,631

198,231

34,879

53, 503

53,455

22 588

8, 514

2,805

1,664

2, 687 

1,695

262,454

Mar.

1,100

1,100

2,770

6,520

5,360

2,930

1,820

1,340

1,100

980

810

710

660

585

610

1,280

3,610

3,170

2,450

1,820

1,400

1,400

1,400

1,400

1,280

1,100

1,160

1,040

980

810

760

Maximum

1,480

8,170

5,470

10, 800

4,600

5,580

6,520

1,680

460

128

177

267

212

8,170

Apr.

1,100

1,100

1,040

860

760

710

660

610

585

560

535

860

860

*710

980

1,220

1,680

1,100

860

760

660

610

560

535

460

415

460

485

438

415

May

438

415

392

370

460

438

392

370

348

325

325

325

302

280

246

231

238

325

246

220

205

198

184

170

167

161

164

158

148

142

131

Minimum

29

91

415

23

302

355

585

415

131

65

37

39

37

29

June

128

123

115

115

110

110

118

113

106

101

97

92

92

88

88

88

84

84

84

80

76

76

78

106

90

82

76

72

68

65

Mean

181

1,114

1,343

543

1,125

li 911

1,724

753

275

93 5

53 7

86 .7 

56.5

719

July

62

56

55

52

52

49

51

51

52

52

49

46

44

44

44

44

43

42

47

47

44

43

42

39

37

3£

37

6£

177

8£

es

Per 

square 

mile

1.60

11. ~9

4.81

9.96

16 .9

15.3

6 . 66

2.43

. 827

.475

.767

.500

6.36

Aug.

57

51

47

44

44

44

47

44

43

40

39

39

39

39

216

267

158

99

80

72

65

72

191

238

148

113

82

68

68

68

65

Sept.

60

55

55

51

49

47

46

44

43

42

42

44

43

42

42

42

43

40

39

39

39

37

37

43

101

212

110

80

68

60

-

Runoff

Irches

I

oe

. O3

11.00

13.70

65.25

11 . 48

17 .61

17.59

7.43

2 80

!92

.55

.88

.56

86.37

Acre-feet

11,140

66, 280

82,570

393, 200

69,180

106,100

106,000

44, 800

16^ 890

5,560

3,300 

5 330

Z, 360

520, 500

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
20 CHEHALIS RIVER BASIN

Chehalis River near Grand Mound, Wash.

Location.--Water-stage recorder, lat. 46°46'35", long. 123°02'05", in NE^ se-j. 22, T. 15 

w., H. 3 W., at Meadown, l|- miles southwest of Grand Mound and 6 miles do-*nstream from 

Skookumchuck River. Datum of gage is 123.27 feet above mean sea level, datum of 1929.

Drainage area.--897 sqaare miles.

Records available. October 1928 to September 1950.

Average discharge.--22 years, 2,646 second-feet.

Extremes.--Maximum discharge during year, 26,300 second-feet Feb. 26 (gage height, 15.41 

reet ); minimum, 138 second-feet Sept. 23 (gage height, 1.59 feet).

1928-50: Maximum discharge, 48,400 second-feet Dec. 29, 1937 (gage height, 18.39 

feet); minimum, 108 second-feet Sept. 24, 1938.

Remarks. Records excellent except those for periods of fragmentary gage-height record 

or shifting control, which are good. Cities of Centralia and Chehalis divert about 

15 second-feet from Newaukum River, a tributary, for municipal use. No regulation.

Revisions.--W 932: Drainage area.

Rating table, water year 1949-5O, except periods of shifting control 

(gage height, in feet, and discharge, In second-feet)

1.7 

1.9 

2.1 

2.3 

2.6

134

212

306

414

605

2.9 

3.2 

3.6 

4.0 

4.5

822

1,060

1,420

1,820

2,370

5.0 

5.5 

6.0 

7.0

8.0

2,920

3,530

4,200

5, 700

7,400

9.5

11.0

13.0

15.3

10,200

13,300

18,400

26,000

Discharge, in second-feet, water year October 1949 to Septemberl950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

156

156

156

167

252

647

654

572

438

538

668

612

626

525

438

397

358

322

301

277

262

262

257

252

252

252

267

633

2,640

1,330

900

Nov.

725

605

538

480

444

426

408

444

468

704

1,010

5,580

11,200

6,530

3,920

2,640

2,040

1,620

1,420

1,200

1,110

997

1,620

3,900

5,860

7,760

13,900

19,300

16,400

12,000

Dec.

8,480

9,240

10,200

Jan.

12,200

8,670

6,190

7,580] f4,770

5,860| f3,790

5,540

4,620

3,790

3,280

3,160

2,700

2,370

2,370

2,370

2,260

2,320

2,700

4,200

4,060

3,160

3,040

3,790

6,530

13,000

11,800

10, 800

11,800

19,800

23,200

19,900

15,900

4,060

8,480

7,400

5,860

7,160

10,400

7,760

5,540

3,920

3,660

f3, 160

f2,640

f2,370

f2,590

10,600

18,100

22,100

23,500

19,900

14,000

9,430

7,400

5,700

4,340

3,660

2,920

Month

October .......................

November .... ......... ......

December . . ... ... ...........

Calendar year 1949 .........

January ... .............. ....

February ................. ....

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

April ..... ........... .......

May .... . . ... .......... ....

June .......... ......... ....

July ..................... ...

August ........................

September ..... ............

Water year 1949-50 ..........

Feb.

2,700

2,420

2,20O

2,370

2,920

4,480

6,870

10,500

13,300

11,000

9,620

9,050

11,600

14,400

13,700

14,900

14,000

11,200

9,430

7,940

6,530

5,700

6,360

16,200

24,200

26,000

22,800

16,600

_

-

Secondfoot-days

15,567

125,249

229 , 82O

, ob

"52 270

298, 990

263,400

114 950

38J375

16,089

8,230

8, 488

6,259

1,377,687

Mar.

11,600

8,300

7,940

13,700

19,600

21,400

16,900

12,000

8,670

6,870

5,540

4,480

3,920

3,660

3,280

3,400

7,940

12,000

11,800

10,400

8,300

7,220

7,400

7,400

6,700

5,700

5,700

6,020

5,860

5,220

4,480

Maximum

2,640

19,300

23,200

34,800

23,500

26,000

21,400

7,580

1,930

675

578

551

711

26,000

Apr.

4,480

5,070

5,380

4,770

4,200

3,790

3,400

3,040

3,160

2,760

2,540

4,060

6,020

4,770

4,340

6,530

7,580

6,360

4,770

3,920

3,400

3,040

2,860

2,480

2,260

2,040

1,980

2,200

1,980

1,770

May

,770

,930

,770

,670

,720

,880

,770

,620

,520

,470

,380

,330

,380

,280

,200

,130

,080

,240

,200

,060

988

940

908

861

807

770

770

784

754

718

675

Minimum

156

408

2,260

131

2,370

2,200

3,280

1,770

675

375

167

167

141

141

June

633

626

585

598

585

578

592

633

605

558

545

538

525

512

500

487

551

675

551

493

456

432

493

626

572

493

432

426

414

375

-

Mean

502

4,175

7,414

2,714

8,138

10,680

8,497

3.832

1,238

536

265

274

209

3,774

July

353

327

311

282

282

267

262

257

252

272

272

257

234

226

216

216

262

244

239

239

216

204

192

183

183

175

167

221

444

578

397

Per

square 

mile

0.560

4.65

8.27

3.03

9.07

11.9

9 4°2747

l'.Z8

598

*305 295

'.233

4.21

Aug.

311

2

2

2

2

67

39

26

12

208

2

22

16

26

16

204

192

]

]

]

83

71

67

187

444

;

^

51

92

11

272

239

2

2

;

26

39

64

487

403

I't

2

2

32

91

57

34

221

Ri

Inches

0.65

5.19

9.53

41.06

10.46

12.40

10.92

4.77

1.59

.67

' 354

!26

57.13

Sept.

208

196

187

179

179

179

171

164

156

149

149

149

145

145

145

145

145

152

145

145

145

141

141

152

196

403

711

493

348

296

-

inoff

Acre-feet

30, 880

248,400

455,800

1,965,000

500,400

593,000

522,400

228,000

76,120

31,910

16,320

16,840

12,410

2,732,000

f fragmentary gage-height record; discharge computed on basis of partly estimated gage-height record .

No_te_.--Shifting-control method used June 22 to Sept. 30.
CHEHALIS RIVER BASIN

Chehalis River at South Elma, Wash.

Drainage area. 1,420 square miles.

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

Extremes. Maximum discharge during year, 34,500 second-feet Feb. 27 (gage height, 75.90 

 TeeTT; minim , 288 second-feet Sept. 22, 23; minimum gage height, 55.86 feet Oct. 2,

3, Sept. 22, 23.

134S-44, 1946-50- Maximum discharge, 35,600 second-feet Feb. 24, 1949 (gage height,

76.23 feet); minimum ouoer^d, COD second-feet Sept. 12, 1944 (gage height, 55.43

feet).

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

ETiose for periods of no gage-height record or Irackifater from Satsop River, which are 

pooi'. Cities of Centralia and Chehalis divert approximately 15 second-feet from 

Newauk'ini River, a tributary, for nu.iicipal use. Ho regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

307

300

307

363

496

585

823

791

791

743

831

879

839

807

705

622

570

532

496

454

440

426

426

412

412

426

482

1,920

2,570

2,570

1,590

Nov

1,230

984

871

791

712

675

645

690

751

C807

cl,190

c3,850

c9,300

ell, 000

7,510

5,160

3,940

3,170

2,670

2,320

2,020

1,970

C2.220

c3,940

C6.860

c 10, 300

c!9,000

c 19, 800

c20,400

c20,200

-

Dec.

16,800

14,800

14,000

12,700

10 , OOU

Jan.

24,600

18,300

12,600

9 , 300

7,510

c8,320| 5,860

C7.380

c6,240

C5.520

5,160

4,710

4,270

4,050

4,050

3,940

3,830

4,160

5,280

8,740

10,400

9,160

9,020

11,600

12,400

9,600

a7,200

a6,000

a5,000

a4 , 500

a4,000

5,760 a4,700

5,160| a9,000

4,820

5,640

8,630

13,200

16,600

16,600

18,600

29,600

32,100

31,500

29,100

18,600

25,800

30,500

30,800

28,200

22,200

14,500

10,800

8,320

6,860

a5,800

Month

October ... ... ........... ...

November ................ .....

December ... . . ........... ...

Calendar year 1949 .........

January ..... ........... .....

February .................... .

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

April .........................

May ................... .... .

June ..........................

July ...... .... ......... ....

August ........ ................

September ..................

Water year 1949-50 ..........

Feb.

a5,200

a4,500

a4,000

a4,100

Mar.

26,300

19,000

15,900

20,800

Apr.

6,990

7,380

7,770

7,510

a4,700| 24,400 6^860

5,400

7,900

11,800

15,700

17,100

15,400

14,200

17,000

19,400

21,000

22,400

21,200

19,400

15,900

13,200

11,000

10,000

10,700

19,200

25,400

33,100

34,200

31,500

_

.

-

 r 

Secondfoot-days

23 91S

164)976

352,520

1,^02,437

392 8^0

434)600

439,250

177,750

72,740

17)396

15,543

11,983

2,135,605

27,700

28,200

25,600

19,000

13,400

10,400

8,600

7,380

6,600

6,120

6,600

10,500

15,000

18,100

17,100

6,240

5,640

5,160

5,040

4,710

4,490

4,600

6,240

6,730

6,860

8,460

10,200

9,900

8,040

6,600

14,800) 5.760

12 , 400

11,100

11,100

10,800

9,600

9,020

9,020

8,880

8,320

7,510

Maximum

2,570

20,400

32,100

35,200

30,800

34,200

28 20C

lo!200

3,390 

1,360

75 C

735

855

34,200

5,160

4,820

4,380

4,050

3,830

3,610

3,720

3,610

3,390

-

May

3,280

3,390

3,280

3,070

3,070

3,170

3,170

2,970

2,770

2,770

2,570

2,570

2,470

2,470

2,320

2,220

2,170

2,370

2,420

2,170

1,970

1,870

1,770

1,720

1,640

1,590

1,540

1,540

1,540

1,460

1,410

Minimum

300

645

3,830

276

4,000

4,000

6,120

3,390

1,410

807

440

384

294

294

June

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

360

320

280

230

190

140

190

190

190

140

1,060

1,

1,

1,

060

060

040

1,020

1,

1,

1,

1,

1,

Mean

771

5,499

11,370

. 4,116

12,670

15,520

14,170

5 925 ' . 

l)o69

561

501

399

5,851

000

967

100

100

992

951

919

951

100

100

992

911

871

831

807

-

July

751

720

682

652

622

600

592

578

585

585

585

562

532

518

510

503

503

489

496

482

475

475

461

461

440

440

440

525

630

743

759

Per

square 

mile

0.543

3.87

8.01

2.90

8 . 92

10.9

4.17

1 . 65

.753

. 395

)281

4.12

Aug.

622

532

482

461

440

447

461

447

440

419

412

405

Sept.

398

377

363

363

356

349

335

328

321

307

307

314

384 314

391 314

592 314

600

735

698

585

510

461

433

454

510

578

645

562

510

468

440

419

314

314

314

314

314

307

300

294

363

555

682

767

855

675

555

-

Runoff

Inches Acre-feet

0.63 47,430

4.32 327,200

9.23 699,200

39.35 2,980,000

10 29 779 200

11.38 862)000

11.50 871,200

4.66 352,600

1.91 144,300

.84 63,590

.46 34,500

.41 30,830

.31 23,770

55.94 4,236,000

Peak discharge (base, 17,OpO see.-ft.).--Nov. 29 (10 to 12 p.m.) 20,800 sec.-ft.; Dec. 28 (9 to 12 

p.m.) 32,400 sec.-ft.; Jan. 24 (1 a.m.) 31,200 sec.-ft. ; Feb. 16 (5 to 10 a.m.) 22,700 sec.-ft.j 

Pet. 27 (2 a.m.) 34,500 sec.-ft.; Mar. 7 (9 to 11 a.m.) 28,500 sec.-ft.; Mar. 19 (12 m.) 18,300 

sec.-ft.

a No gage-height record; discharge computed on basis of records for Sataop River near Satsop.

c Backwater from Satsop River.

Note. Shifting-control method used Cut. 1 to Nov. 9, Nov. 15-22, June 2 to Sept. 30.
22 CHEHALIS RIVER BASIN

Elk Creek near Doty, Wash. 

Location. Water-stage recorder, lat. 46°37'40", long. 123°19'SO", In NEir sec. 8, T. 13

 N77~R. 5 W., half a mile upstream from Nine Creek, 1 mile upstream from Deer Creek, and

2j miles west of Doty. 

Drainage area. 46.7 square miles. 

Hecoraa available. July 1942 to October 1943 (fragmentary), July 1944 to October 1950

(discontinued). 

Extremes.--Maximum discharge during period October 1949 to October 1950, 1,770 second-feet

 Dec. 28 (gage height, 7.03 feet); minimum, 13 second-feet Sept. 22, 23 (gage height,

1.98 feet).

1942-50: Maximum discharge, 2,380 second-feet Feb. 22, 1949 (gage height, 8.21

feet), from rating curve1 extended above 1,600 second-feet; minimum, 8.6 second-feet

Sept. 9-11, 1944. 

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

those for period of no gage-height record, which are poor. Ho diversion or regulation. 

Revisions. W 1012: Drainage area.

Discharge, in second-feet, 1949-5O 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

15

14.5

14

23

58

53

48

31

42

59

41

39

33

28

25

24

22

19.5

19

19.5

18.5

18

18

18

18

19.5

24

267

157

74

52

Nov.

41

36

32

30

29

27

26

36

61

62

140

754

546

274

182

132

104

88

78

69

63

78

161

314

371

480

1,100

655

490

402

-

Dec.

344

472

420

341

338

314

263

224

224

221

184

167

163

152

148

161

209

246

196

171

205

320

472

590

510

530

*894

*1,570

895

648

509

Jan.

405

338

280

252

226

309

344

288

257

387

380

297

241

254

221

182

157

b!40

248

605

805

1,120

850

545

405

367

331

285

254

230

200

Feb.

*175

170

160

250

300

400

500

1,080

900

650

550

700

1,100

900

1,000

850

650

550

500

450

400

370

600

1,100

1,250

1,050

900

750

_

_

-

Mar.

600

470

500

900

1,200

1,050

800

600

470

400

370

400

350

300

270

250

520

480

460

450

400

400

370

350

330

310

350

350

310

280

270

Apr.

280

310

310

270

260

240

210

200

190

170

150

150

140

173

226

276

276

24:1

211

193

175

171

169

149

140

133

137

140

126

118

May

126

131

118

113

123

137

128

114

108

105

100

96

90

88

82

79

90

108

90

79

75

74

70

63

62

58

59

59

56

55

50

June

49

47

45

43

41

42

49

49

45

43

40

39

40

40

40

38

38

38

36

34

34

35

47

48

41

37

34

33

30

29

July

28

26

25

24

24

24

23

23

24

24

23

22

22

21

21

20

20

20

23

26

22

20

20

19.5

18.5

18.5

19.5

50

77

41

30

Aug.

26

22

21

20

19.5

20

22

20

20

19.5

18

18

17.5

17.5

30

47

29

24

22

20

19

19

22

29

24

21

19.5

18.5

17.5

17

16.5

Sept.

16

15.5

15

15.5

15.5

15

15

14.5

14

13.5

13.5

13.5

13.5

14

14

14

14.5

14.5

14

13.5

13.5

13

13

18

47

67

41

30

24

21

Peak discharge (base, 970 sec .-ft .) .--Nov. 12 (2:30 p.m.) 1,620 sec. -ft.; Nov. 27 (8:30 a.m.) 1,200

sec. -ft. ; Dec. 28 (8 a.m.) 1,770 sec. -ft.; Jan. 22 (5 p.m.) 1,160 sec. -ft.; Feb. 8 (time and discharge unknown); Feb. 13 (time and discharge unknown); Feb. 15 (time and discharge unlnown); Feb. 25 

(time and discharge unknown); Mar. 5 (time and discharge unknown).

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. Shifting-control method used Nov. 14-£5, May 25 to Aug. 23, Sept. 3-27. No gage-height

record Jan. 30 to Apr. 13; discharge computed on basin of records for nearby streams.

1950"

Day

Oct. 1

2

3

4

5

6

7

8

Discharge

19.5

18.5

19.5

22

50

86

74

71

Day

Oct. 9

10

11

12

13

14

15

16

Discharge

68

259

204

103

74

62

54

45

Day

Oct. 17

18

19

20

21

22

23

24

Discharge

42

65

80

75

70

65

60

60

Day

Oct. 25

26

27

28

29

30

31

Discharge

60

75

150

250

240

200

220

Note. No gage-height record Oct. 19-31; discharge computed on basis of records 

for nearby streams.

Monthly discharge, In second-feet, 1949-5O

Month

December ......................

Calendar year 1949 .........

May ..................... .....

September .....................

Water year 1949-5O ..........

October 1950 ...................

Secondfoot-clays

1,311.5 

6,861 

12,101

53,803

11,203 

18,255 

14,560 

5,934 

2,786 

1,204 

799 

676 

576

76,266.5

2,941.5

Maximum

267 

1,100 

1,570

2,160

1,120 

1,250 

1,200 

310 

137 

49 

77 

47 

67

1,570

259

Minimum

14 

26 

148

12.5

140 

160 

250 

118 

50 

29 

18.5 

16.5 

13

13

18.. 5

Mean

42.3 

229 

390

147

361 

652 

470 

198 

89.9 

40.1 

25.8 

21.8 

19.2

209

94.9

Per 

square 

mile

0.906 

4.90 

8.35

3.15

7.73 

14.0 

10.1 

4.24 

1.93 

.859 

.552 

.467 

.411

4.48

2.03

Runoff

Inches

1.04 

5.46 

9.64

42.84

8.92 

14.54 

11.59 

4.73 

2.22 

.96 

.64 

.54 

.46

60.74

2.34

Acre-feet

2,600 

13,610 

24,000

106,700

22,220 

36,210 

28,880 

11,770 

5,530 

2,390 

1,580 

1,340 

1,140

151,300

5,830
CHEHALIS RIVER- BASIN 23

South Pork Chehalis River at Boistfort, Wash.

Location.--Water-stage recorder, lat. 46°32'45", long. 123°07'55", in NW^NWi see. 12, T.

J.2 K., R. 4 W., a quarter of a mile south of Boistfort and 6 miles upstream from mouth. 

Drainage area.--49.2 square miles. 

Kecoras available. July 1942 to October 1943 (fragmentary), July 1944 to October 1950

(discontinued). 

Extremes. Maximum discharge during period October 1949 to October 1950, 5,030 second-feet

MOV. 27 (gage height, 9.77 feet), from rating curve extended above 1,500 second-feet;

minimum, 5.0 second-feet Sept. 9-15, 24 (gage height, 1.75 feet).

1942-50: Maximum discharge, that of Nov. 27, 1949; maximum gage height, 11.57 feet

Feb. 7, 1945; minimum discharge, 2.5 second-feet Sept. 14, 1944 (gage height, 1.67

feet). 

Remarks.--Records fair. Small diversions for irrigation. No regulation.

Discharge, In second-feet, 1949-50 

1949-50'

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

8.1

8.6

9.4

8.6

28

43

44

26

20

50

38

46

35

28

22

19

16

14.5

13.5

12.5

12

12

11

11

11

11

13.5

169

144

75

54

Nov.

41

36

31

29

26

25

23

25

47

65

182

742

705

333

223

169

130

111

94

83

74

72

149

460

467

866

3,840

1,810

897

600

-

Dec.

449

744

560

422

393

396

334

290

262

244

209

195

190

183

174

172

222

308

257

224

216

255

500

1,100

662

620

1,270

2,820

1,530

970

730

Jan.

520

402

331

293

255

370

399

319

282

484

386

302

247

242

212

188

169

163

552

1,630

1,950

2,020

1,260

688

a560

a430

a350

a300

a250

a220

a200

Feb.

a!80

a!65

a!60

a!60

174

279

337

788

620

502

466

484

1,430

1,110

1,290

1,220

820

620

520

418

355

343

587

2,680

2,140

1,460

802

520

_

_

-

Mar.

409

364

711

1,840

1,810

982

600

449

386

346

302

268

249

232

222

309

944

775

920

640

484

435

399

393

352

322

358

374

334

296

265

Apr.

273

276

276

247

226

209

190

195

192

172

167

202

197

183

271

374

393

322

268

232

202

183

174

154

141

130

149

141

124

116

May

118

116

108

102

108

100

98

93

89

85

81

78

74

71

69

64

69

81

69

64

60

58

54

52

48

46

46

45

44

42

41

June

38

36

34

33

32

34

36

36

33

32

31

28

28

30

31

30

87

54

39

34

31

30

36

37

33

31

28

27

25

23

July Aug.

22 13.5

21 12

19 11

18 , 9.6

17

16

16

16

18

20

20

18

17

17

17

17

16

16

16

16

15

13

10.3

10.5

9.6

8.8

9.6

13.5

34

23

17

9.6

10.5

10.5

10.5

9.6

8.8

8.0

7.4

6.8

7.4

11

39

20

15

13

10.5 

9.6

8.8

12

25

22

16

13.5

11

10.5

8.8

7.4

Sept.

7.4

6.8

6.8

7.4

7.4

8.0

7.4

6.8

6.2

5.6

5.6

5.6

5.6

5.6

6.2

S.2

6.2

6.8

6.8

6.8

6.8

6.2

6.2

6.2

13

26

26

18

13.5

13

Peak discharge (base, Z.40O sec .-ft. ) .--Nov. 27 (12 m.1 5.00O Sec. -ft.: Dec. 28 (9:3O a.m."! 3.20O

sec. -ft.; Feb. 24 (1 p.m.) 3,200 sec. -ft.

a No gage-height record; discharge computed on basis of 1 discharge measurement anc1 records for 

nearby streams.

Day

Oct. 1

Z

3

4

5

Discharge

11

11

11

13.5

24

Day

Oct. 6

7

8

9

10

Discharge

72

74

74

55

362

Day

Oct. 11

12

13

14

15

Discharge

250

139

96

83

78

Day

Oct. 16

17

18

Discharge

64

58

a 100

a No gage-height record; discharge computed on basis of 1 discharge measurement and records 

for nearby streams.

Monthly discharge, In second-feet, 1949-50

Month

December ......................

Hay

September .....................

Water year 1949-50 ..........

October 1-18, 1949. ............

Secondfoot-days

1,013.7 

12,355 

16,901

71,997.6

15,974 

20,630 

16,770 

6,379 

2,273 

1,037 

517.5 

388.3 

266.1

94,504.6

1,575.5

Maximum

169 

3,84O 

2,820

3,840

2,020 

2,680 

1,840 

393 

118 

87 

34 

39 

26

3,840

362

Minimum

8.1 

23 

172

4.9

163 

160 

222 

116 

41 

23 

8.8 

6.8 

5.6

5.6

11

Mean

32.7 

412 

545

197

515 

737 

541 

213 

73.3 

34.6 

16.7 

12.5 

8.87

259

87.5

Per 

square 

mile

0.665 

8.37 

11.1

4.00

10.5 

15.0 

11.0 

4.33 

1.49 

.703 

.339 

.254 

.180

5.26

1.78

Runoff

Inches

0.77 

9.34 

12.78

Si. 43

12.07 

15.59 

12.68 

4.82 

1.72 

.78 

.39 

.29 

.20

71.43

1.19

Acre- feet

2,010 

24,510 

33,520

142 , 800

31,680 

40,920 

33,260 

12,650 

4,510 

2,060 

1,030 

770 

528

187,400

3.120

238382 O - 53 - 3
24 CHEHALIS RIVER BASIN

Newaukum River near Chehalis, Wash.

Location. Staff gage, lat. 46°36'10", long. 122°56'45", on line between sees. 9 and 16, 

T. 13 N., R. 2 W., 2.2 miles southeast of Chehalis and 3.4 miles upstream from mouth.

Drainage area. 159 square miles.

Records avail able. --March 1929 to September 193], July 1942 to September 1950.

Average discharge. --10 years, 467 second-feet (unadjusted).

Extremes. --Maximum discharge observed during year, 5,640 second-feet Feb. 24 (gage height, 

12.10 feet), from rating curve extended above 3,800 second-feet by logarithmic plotting; 

minimum observed, 25 second-feet Sept. 9, 23 (gage height, 1.34 feet).

1929-31, 1942-50: Maximum discharge reserved, 6,440 second-feet (revise!) Feb. 17, 

1949 (gage height, 13.06 feet), from rating curve extended above 3, SOU second-feet hy 

logarithmic plotting; minimum observed, 12 aeconrl-feet Sept. 13, 14, 1349.

Revisions. The maximum discharge for th? water jear 1949 has been revised Co 6,440 

secona-reet *'eb . 17, 1349 (gage height, 13. OR feet), from rating curve extended above 

3,800 second-feet on basic of logarithmic plotting, superseding figure published in 

Water-Supply Paper

Remarks . --Records good exce

ord, which are fair. Gage wc 

about 15 second-feet for municipal use

Revisions (water years) . W 1012: 1943.

.

pt those for periods of shifting control or no gage-height recge read twice daily. Cities of Chehalis and Cent-alia divert 

municipal use. No regulation.

Rating table, water year 1949-50, except period of shifting control 

(gage height, In feet, and discharge, In second-feet)

1.3 20 3.0 388 7.0 E.13O 

1.5 45 3.5 548 8.0 2,730 

1.7 76 4.0 732 9.O 3,360 

2.0 133 5.0 1,130 10.0 4,060 

2.5 248 6.0 1,630 11. C' 4,920

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

30 

30 

28 

33 

449

288

344 

211 

148 

344

248 

315 

248 

188 

144

1£3 

105 

89 

87 

67

80 

74 

65 

62

60

68 

133 

583 

583 

315 

223

Nov.

176 

154

133 

117 

107

102 

98 

102 

121

133

344 

1,430 

890

890 

619

449

315 

274 

236 

223

176 

176 

548 

1,030 

1,230

1,180 

3,710 

2,490 

1,630 

1,580

Dec.

1,580 

1,480 

1,050 

850 

770

732 

583 

514 

481 

418

393 

358 

418 

418 

388

481 

656 

694 

619 

583

583 

1,230 

1,980

2,750 

1 , 630

1,480 

2,490 

4,480 

2,790 

1,980 

1,980

Jan.

1,330 

1,010 

810 

694 

583

890 

1,580 

1,090 

890 

2,130

1,480 

930 

850 

810 

481

445 

373 

274 

656 

3,150

4,690 

4,480 

3,640 

2,130 

1,430

1,180 

1,010 

810 

514 

548 

a470

Feb.

a440 

a420 

a410 

a470

732

1,280 

1,280 

2,850 

1,730 

1,430

1,330 

1,980 

2,850 

2,030 

2,430

2,130 

1,630 

1,330 

1,280 

1,050

890 

930 

1,880 

4,920

4,840

4,130 

2,670 

1,730

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

St............ ..........................

ember. ..................................

ter year 1949-50 .......................

Mar.

1,330 

1,090 

1,180 

2,970 

3,710

2,490

1,830 

1,380 

1,010 

970

890 

1,010 

694 

619 

548

548 

2,030 

,980 

,830 

,280

,090 

,090 

,090 

,010 

850

850 

850 

970 

930 

850 

810

Apr.

1,

1,

1,

1,

Secondfoot-days

5,790 

20,643 

36,819

170,993

41,362 

51,072 

39,779 

20,500 

8,020 

4,041 

2,200 

1,444

232,879

850 

930 

930 

810 

ti94

548 

514 

583 

548 

481

449 

180 

330 

930 

930

05O 

280 

970 

770 

656

514 

514 

481 

418 

388

373 

388 

388 

315 

288

May

358 

358 

329 

329 

418

418 

373 

344 

315 

288

288 

288 

274 

274 

248

248 

236 

274 

236 

223

211 

199 

199 

176 

154

176 

154 

165 

165 

154 

148

Maximum

583 

3,710 

4,480

5,460

4,690 

4,920 

3,710 

1,330 

413 

188 

148 

90 

154

4,920

June

148 

146 

146 

146 

146

141 

150 

154 

137 

133

131 

131 

129 

123

119

113 

165 

141 

123 

117

115 

113 

176 

188 

154

125 

113 

113 

105 

100

July

96 

90 

83 

83 

80

78 

78 

76 

85 

85

80

73 

68 

66 

65

63 

62 5"? 

58 

63

56 

51 

51 

45 

45

44 

44 

66 

148 

90 

71

Aug.

60 

52 

50 

45 

45

46 

48 

44 

40 

40

37 

36 

37 

37 

41

76 

60 

48 

42 

38

37 

35 

48

90 

66

52 

44 

41

38 

36 

35

Sept.

32 

32 

32 

32 

32

32 

31 

30 

25 

27

30 

28 

27 

28 

30

30 

30 

30 

30 

30

28 

27 

26 

31 

66

154 

121 

71 

42 

45

Minima Mean %£«£

28 187 11,480 

98 683 40,940 

358 1,183 72,030

14 463 339,100

274 1,334 82,040 

410 1,821 101,300 

548 1,281 78,900 

288 681 40,660 

148 259 15,910 

100 135 8,020 

44 71.0 4,360 

35 46.6 2,860 

25 40.3 2,400

25 63<3 461,900

a Ho gage-height record; discharge computed on basis of 

Note. Shifting-control method used Oct. 1 to Nov. 11.

near-by streams.
CHEHALIS RIVER BASIN 25

Skookumchuck River near Centralia, Wash.

Location. --Water-stage recorder, lat . 46 0 47'15", long. 122°42'45", in SW-J-NW-j sec. 17, T. 

15 N. , R. IE., half a mile upstream from Bloody Run Creek, 4j miles upstream from 

Thompson Creek, and 12 miles northeast of Centralia. Datum of gage is 300.00 feet 

above mean sea level (river-profile survey).

Drainage area. 60 square miles.

Records available. --April 1929 to September 1931, October 1939 to September 1950.

Average discharge. 13 years, 222 second- feet.

Extremes . --Maximum discharge daring year, 5,350 second-feet Dec. 28 (gage height, 47.28 

reet) ; minimum, 23 second-feet Oct. 2,3, Sept. 23, 24.

1929-31, 1939-50: Maximum discharge, 5,770 second-feet Feb. 17, 1949 (gage height, 

48.39 feet); minimum, 18 second-feet Oct. 27-30, 1944.

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

tnose for periods of no gage-height record, which are poor. No diversion or regulation.

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

Rating tables, water year 1949-50, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Dec. 27 Dec. 28 to Sept. 3C

39.7 24 40.8 201 43.0 1,380 39.3 23 40.1 133 41.1 447 

39.9 41 41.1 305 43.5 1,730 39.5 41 -40.3 179 41.5 635 

40.1 66 41.5 490 44.0 2,08O 39.7 65 40.5 233 - 42.0 910 

40.3 95 42.0 765 39.9 95 40.8 329 43.0 1,510 

40.5 129 42.5 1,060

Discharge, in second- feet, water year October 1949 to September 1950

Day

J 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

25 

24 

24 

30 

95

86 

80 

61 

67

90

84 

92 

73 

60 

52

46 

41 

39 

37 

35

33 

32 

32 

31 

31

31 

34 

308 

177 

111 

88

Nov.

74 

65 

57 

53 

51

47 

45 

52 

79 

86

229 

1,110 

650 

434 

313

236 

185 

150 

129 

115

103 

113 

204 

410 

512

682 

2,010 

1,000 

666 

506

Dec.

420 

704 

545 

401 

368

326 

275 

239 

216 

196

174 

167 

160 

152 

155

157 

204 

232 

193 

172

188 

396 

1,070 

1,130 

677

638 

2,010 

3,220 

1,600 

1,150 

822

Jan.

635 

523 

443 

397 

362

523 

551 

434 

382 

635

519 

401 

330 

280 

260

240 

230 

250 

500 

1,000

1,600 

2,200 

1,600 

1,100 

800

560 

450 

380 

320 

280 

250

Feb

230 

220 

230 

250

400

600 

850 

1,200 

950 

750

650 

900 

1,300 

1,150 

1,500

1,150 

910 

712 

660 

575

487 

482 

925 

2, 970 

2,340

1,850 

1,240 

795

£££.

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay 

June 

July 

Augu 

Sept

Wa

lendar year 1949

st

ember ........ ............

2,049 

10,366 

18,357

89,332

18,435 

26,276 

22,075 

13,528 

5,655 

2,960 

1,465 

1,119 

956

ter year 1949-5O .......... 123J 2 *!

Mar.

590 

496 

685 

2,320

2,740

1,540 

910 

660 

514 

426

359 

322 

295 

266 

257

366 

1,390 

1,120 

910 

712

585 

585 

566 

532 

473

434 

443 

434 

401 

382 

362

Maximum

308 

2,010 

3,220

3,670

2,200 

2,970 

2,740 

1,090 

251 

133 

66 

60 

115

3,220

Apr.

514 

605 

571 

473 

405

374 

340 

322 

292 

276

266 

795 

850 

590 

685

970 

1,090 

685 

491 

413

362 

329 

292 

254 

233

213 

230 

213 

200 

195

May

219 

227 

211 

216 

251

236 

216 

200 

189 

182

187 

227 

233 

213 

197

182 

187 

195 

172 

157

157 

160 

153 

137 

133

146 

157 

148 

131 

121 

115

June

115 

117 

125 

133 

125

113 

111 

104 

97

104

111 

109

99 

95

92

90 

108 

95 

92 

90

84 

84 

115 

97 

84

78 

76 

75 

73 

69

Minimum Mean

24 66.1 

45 346 

152 592

23 245

230 595 

220 938 

257 712 

195 451 

115 182 

69 98.7 

35 47.3 

29 36.1 

24 31.9

24 338

Peak discharge (base, 2.000 sec .-ft .) .--Nov. 27 (6 a.m.) 3,160 sec. -ft

July

64 

61 

57 

56 

53

52 

52 

51 

57 

52

49 

45 

44 

43 

42

42 

41 

41 

43 

43

40 

38 

37 

37 

35

35 

35

61 

66 

49 

44

Per 

square 

mile

1.10 

5.77 

9.87

4.08

9.92 

15.6 

11.9 

7.52 

3.03 

1.64 

.788 

.602 

.532

5.63

43.5 1,850 

44.0 2,200 

44.5 2,580 

45.5 3,420

Aug.

41 

39 

38 

37 

36

37 

36 

34 

33 

32

31 

31 

30 

31 

52

60 

41 

37 

34 

32

31 

31 

42 

49 

39

34 

32 

31 

30 

29 

29

Sept,

28 

27 

27 

27 

27

26 

25 

25 

25 

25

25 

24 

24 

24 

25

25 

25 

25 

24 

24

24 

24 

24 

25 

51

115 

66 

46 

39 

35

Runoff

Inches

1.27 

6.43 

11.38

55.38

11.43 

16.29 

13.68 

8.39 

3.51 

1.83 

.91 

.69 

.59

76.40

Acre-feet

4,060 

20,560 

36,410

177,200

36,570 

52,120 

43,790 

26,830 

11,220 

5,870 

2,910 

2,220 

1,900

244,500

: Dee . 23 (7 p.m.) 2,010

(4:30 a.m.) 4,080 sec.-ft.; Mar. 5 (1 p.m.) 3,330 see.-ft.

Note.--Ho gage-height record Jan. 13 to Feb. 17; discharge computed on basis of recorded range in 

stage, weather records, and records for nearby streams. Shifting-control method used Dec. 28 to 

Jan. 12, Feb. 18-24, Mar. 17 to Apr. 18.
26 CHEHALIS RIVER BASIN

Lincoln Creek near Rochester, Wash. 

Location. Water-stage recorder, lat. 46°44<10", long. 123°10'40", in SW&3W£ sec. 34, T.

15 N., R. 4 W., 1? miles downstream from confluence of North and South Fo^ks and 7

7 miles southwest of Rochester. 

Drainage area. 20.9 square miles, 

fiecoras available.--July 1942 to October 1943 (fragmentary), June 1944 to October 1950

(discontinued).

Extremes.--Maximum discharge during period October 1949 to October 1950, 990 second-feet 

 Dec, 28 (gage height, 15.65 feet); minimum, 0.8 second-foot Sept. 9.

1942-50: Maximum discharge, that of Dec. 28, 1949; minimum observed, 0.4 second-foot

Aug. 23, 1945. 

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

lor periods of no gage-height record, and those for period of backwater, which are poor.

No regulation. Small diversion during summer for irrigation. 

Discharge, In second-feet, 1949-50

1949-50

Day

1

2

3

4

5

6

7

.8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.5

1.5

1.6

14

28

31

28

21

32

34

25

28

27

20

17

14

13

12

12

11

10

9.5

9

10

12

20

38

96

48

30

22

Nov.

17

16

15

14

13

12

11

17

26

22

57

320

219

119

82

61

49

42

35

30

26

38

69

172

178

325

612

392

280

214

-

Dec.

190

294

232

178

178

149

124

106

99

84

69

67

65

61

61

59

86

102

86

79

94

134

214

273

342

357

713

836

561

399

308

Jan.

245

17E

139

119

102

140

139

119

109

178

149

124

106

95

85

75

70

70

140

274

385

564

438

294

217

184

149

122

102

99

94

Feb.

85

80

75

110

140

170

220

490

370

280

250

350

520

400

450

410

310

250

240

200

180

170

270

560

600

470

400

330

_

_

-

Mar.

280

210

210

500

620

500

360

290

200

190

170

180

160

130

120

110

238

220

211

202

178

178

166

160

144

134

154

154

139

126

119

Apr.

124

139

139

126

116

106

96

89

84

72

65

69

61

57

109

119

119

109

96

86

76

72

67

61

57

51

53

50

44

41

May

44

43

39

37

41

42

40

37

35

33

32

30

28

27

26

25

29

33

26

25

23

22

20

19.5

18.5

17.5

17.5

17

17

16

15

June

13.5

12.5

12

11.5

11

11

12.5

12

11

10.5

10.5

10

10

10

10

9.5

9.2

9.2

8.6

8.1

7.8

8.1

10

9.2

8.1

7.8

7.3

7.6

6.8

6.5

July

6.0

5.8

5.5

5.5

5.3

5.1

5.1

4.8

5.3

5.3

5.3

4.8

4.6

4.6

4.6

4.4

4.4

3.9

4.4

4.8

4.2

3.7

3.7

3.5

3.4

3.5

3.5

7.6

10.5

5.5

4.6

Aug.

3.7

3.4

3.2

3.0

2.8

3.4

4.4

3.5

3.0

2.8

2.5

2.3

2.2

2.5

8.3

8.9

5.1

3.9

3.5

3.D

2.5

2.3

3.0

4.6

3.5

2.8

2.5

2.5

2.2

2.0

1.7

Sept.

1.4

1.4

1.4

1.7

1.7

1.4

1.2

.9

.9

1.2

1.0

.9

1.2

1.2

1.0

1.4

1.4

1.2

1.4

1.4

1.4

1.2

1.0

2.2

6.3

8.9

5.1

3.5

3.2

2.7

-

Peak discharge (base, 450 see.-ft.).--Nov. 12 (12:15 p.m.) 492 sec.-ft.; Nov. 27 (6 a.m.) 741 

sc.-ft.; Dec. 28 12:30 a.m.) 990 sec'.-ft.] Jan. 22 (7:30 a.m.) 604 see'.-ft.; Feb. 8, time and dl 

large unknown, Feb. 13, time and discharge unknown, Feb. 25, time and discharge urknowh, Mar. 5, 

time .meand dlscharee discharge unknown. unknown

Note.--Backwater from beaver dam Oct. 1-3, 14-26, Nov. 5-8; no gage-height record Jan. 9-14, Jan. 

31 to Mar. 16; Mar. 19, discharge compm.cu iomputed on on basis ua. B ±o of ui two i,«u discharge tixsviio. measurements and records for

nearby streams. Shifting-control method used Aug. 11 to Sept. 30

1950

Day

Oct. 1

2

3

4

5

6

7

8

Discharge

2.7

2.5

2.7

3.4

8.1

11

14

12

Day

Oct. 9

1011

12

13

14

15

16

Discharge

12

113

58

32

22

20

18

16

Day

Oct. 17

18

19

20

21

22

23

24

Discharge

16

25

30

28

26

24

22

20

Day

Oct. 25

26

27

28

29

30

31

D'seharge

20

25

50

110

100

90

95

Note. No gage-height record Oct. 18-31) discharge computed on basis of records for 

nearby streams. Shifting-control method used Oct. 1-9.

Monthly discharge, In second-feet, 1949-50

Month

toy,.... ......................

October 1950 .................

Secondfoot-days

676.1 

3,483 

6,600

24,958.5

5,298 

8,380, 

6,753 

2,553 

875 

291.8 

153.2 

105 

60.8

35,228.9

1,028.4

Maximum

96 

612 

836

836

564 

600 

620 

139 

44 

13.5 

10.5 

8.9 

8.9

836

113

Minimum

1.5 

11 

59

1.3

70 ~* 

75 

110 

41 

15 

6.5 

3.4 

1.7 

.9

.9

2.5

Mean

21.8 

116 

213

68.4

171 

299 

218 

85.1 

28.2 

9.73 

4.94 

3.39 

2.03

96.5

33.2

Per 

square 

mile

1.04 

5.55 

10.2

3.27

8.18 

14.3 

10.4 

4.07 

1.35 

.466 

.236 

.162 

.097

4.62

1.59

Runoff

Inch «s

1.20 

6.20 

11.74

" 44.41

9.43 

14.91 

12.02 

4.54 

1.56 

.52 

.27 

.19 

 1.1

62.69

1.83

Acre-feet

1,340 

6,910 

13,090

49,500

10,510 

16,620 

13,390 

5,060 

1,740 

579 

304 

208 

121

69,870

2,040
CHEHALIS RIVER BASIN 27

Black River at Little Rock, Wash.

Location.--Water-stage recorder, lat. 46°54'10", long. 123°01'20", in NEijSWi; sec. 2, T. 

16 N., R. 3 W., at bridge crossing in Little Rock, 0.4 mile upstream froir Beaver Creek.

Drainage area. 64 square miles.

Records available.--July 1942 to October 1943 (fragmentary), June 1944 to September 1950 

(discontinued).

Extremes.--Maximum discharge during year, 1,700 second-feet Dec. 28 (gage height, 7.40 

reetj, from rating curve extended above 520 second-feet; minimum, 10.5 second-feet 

July 21, Sept. 8, 9, 15, 16, 21-23.

1942-50: Maximum discharge, that of Dec. 28, 1949; minimum observed, 5.3 secondfeet Sept. 9, 1944 (gage height, 1.30 feet).

Remarks.--Records good except those for periods of no gage-height record anc* shifting 

control, which are fair. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

11 

11 

11 

13.5 

17.5

22 

21 

17 

30 

36

34 

33 

25 

20 

17

15 

14 

13.5 

13.5 

13.5

13.5 

13.5 

13.5 

14 

14

15.5 

23 

172 

123 

85 

60

Nov.

42 

35 

30 

27 

25

24 

23 

27 

38 

40

85 

360 

495 

406 

299

212 

157 

127 

108 

97

87 

92 

127 

176 

248

398 

862 

915 

792 

618

Dec.

510 

585 

525 

450 

392

343 

296 

258 

227 

202

183 

173 

176 

169 

164

162 

190 

214 

202 

183

190 

261 

402 

540 

540

540 

823 

1,560 

1,550 

1,310 

1,110

Jan.

915 

705 

555 

450 

392

378 

392 

378 

349 

378

392 

363 

307 

256 

250

243 

a230 

a227 

a320 

540

828 

1,150 

1,110 

915 

a720

a590 

495 

421 

3360 

a310 

a260

Month

Octo 

Hove 

Dece

Ca

Jami 

Febi 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1949 

ary

ember .....................

ter year 1949-50 ..........

Feb.

a230 

a210 

195 

200 

207

266 

296 

421 

450 

436

421 

450 

670 

775 

828

828 

740 

635 

555 

465

421 

421 

495 

942 

1,270

1,350 

1,190 

950

Secondfoot-days

935.5 

6,972 

14,430

57,151.5

15,179 

16,317 

16,201 

6,604 

3,054 

1,376 

707.5 

716 

418

82,910

Mar.

758 

652 

670 

950 

1,070

950 

828 

705 

585 

510

450 

406 

360 

330 

305

332 

480 

525 

635 

570

495 

465 

436 

406 

363

338 

346 

346 

332 

308 

295

Maximum

172 

915 

1,560

1,560

1,150 

1,350 

1,070 

305 

149 

59 

46 

96 

30

1,560

Apr.

295 

305 

300 

280 

260

245 

233 

222 

212 

203

195 

215 

215 

203 

240

274 

295 

267 

238 

215

199 

192 

184 

173 

163

159 

163 

161 

155 

143

May

149 

145 

136 

130 

136

136 

126 

119 

115 

112

108 

102 

96 

93 

90

87 

95 

110 

98 

90

85 

80 

77 

74 

71

70 

67 

63 

69 

63 

62

Minimum

11 

23 

162

10

227

195 

295 

143 

62 

30 

16 

13 

11

11

June

59 

56 

54 

51 

50

50 

56 

58 

54 

50

49 

48 

50 

60 

46

44 

42 

43 

42 

39

37 

42 

46 

44 

42

39 

36 

36 

33 

30

Mean

30.2 

232 

465

157

490 

583 

523 

220 

98.5 

45.9 

22.8 

23.1 

13.9

227

July Aug.

28 23 

26 20 

25 18 

25 17.5 

25 17.5

24 18 

24 20 

24 18 

26 17.5 

25 17

23 16 

22 16 

21 14.5 

21 ' 27 

20 96

20 90 

19 26 

19 21 

18 18 

18 17

16 16 

17.5 16 

17. £ 17 

21 25 

17 .? 21

17 18 

17 17 

26 16 

46 15 

33 14 

26 13

Per 

square 

mile

0.472 

3.62 

7.27

2.45

7.66 

9.11 

8.17 

3.44 

1.54 

.717 

.356 

.361 

.217

3.55

Sept.

13 

13 

13 

13

13

12 

11.5 

11 

11 

11.5

11.5 

12 

12 

12

11

11 

11.5 

11 

11 

11.5

11.5 

11 

11 

16 

27

30 

25

19 

16 

15

Runoff

Irches

0.54 

4.05 

8.39

33.21

8.82 

9.48 

9.41 

3.84 

1.77 

.80 

.41 

.42 

.24

48.17

Peak discharge (base, 600 sec. -ft. ) .--Nov. 27 (12 p.m.) 990 sec. -ft.; Dec. 28 (6 p.m.)

Acre-feet

1,860 

13,830 

28,620

113,400

30,110 

32,360 

32,130 

13,100 

6,060 

2,730 

1,400 

1,420 

829

164,400

1,700 aec.-

ft.; Mar. 5 (6 a.m.) 1,070 sec.-ft.; Mar. 19 (3:30 p.m.) 635 sec.-ft.

a No gage-height record; discharge computed on basis of weather records and records for nearby 

streams.

Note . Shifting-control method used Dec. 28 to Jan. 16, Jan. 20-24, 27, 28, Feb. 3 to Apr. 6, Apr. 

22~Ec~June 30, Sept. 16-30.
28 CHEHALIS RIVER BASIN

Rock Creek at Cedarville, Wash.

Location.--Water-stage recorder, lat. 46°52'05", long. 123°18125", in SW^SW^ sec. 15, T.

16 M., R. 5 W., 0.2 mile downstream from Williams Creek, 1 mile west of Cedarville, and

1-j miles upstream from mouth. 

Drainage area.--24.8 square Mles.

Heeords available.--July 1942 to October 1943 (fragmentary), June 1944 to September 1950. 

Extremes. Maximum discharge during year, 1,390 second-feet Dec. 28 (gage height, 1C.31

1'eet), from rating curve extended above 300 second-feet; minimum, 1.0 second-foot Sept.

9, 10 (gage height, 2.16 feet).

1942-50: Maximum discharge, 1,440 second-feet Feb. 7, 1945 (gage height, 12.55 feet),

from rating curve extended above 800 second-feet; minimum. 0.3 second-foot Sept. 25,

1946. 

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

Revisions (water years).--W 982; 1942. W1092: 1945-46C.).

Rating tables, water year 1949-5O, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Dec. 28 Dec. 29 to Sept. 30

2.1 0.6 3.6 82 7.0 532 2.1 0.6 2.7 11. 

2.3 2.3 4.0 128 8.0 682 2.3 2.3 3.0 25 

2.5 6.5 4.5 188 9.O 840 2.5 6.O 3.3 46

s'.S 53 s'.O 389 ' ' 4 ' 5 feet> 

Discharge, in second feet, water year October 1949 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

Oct.

2.5 

2.2 

2.2 

3.7 

8.0

8.4

7.1 

5.0

8.1 

13

11.5 

11.5 

7.8 

5,8 

4.5

4.0 

3.7 

3.2 

3.2 

3.2

3.0 

2.8 

2.8

2.6 

2.6

3.7 

8.4 

128 

57 

29 

19.5

Nov.

14 

11.5 

10.5 

9.4 

8.7

8.1 

7.8 

10 

19

16

47 

382 

369 

182 

117

86 

70 

58 

51

43

38 

46 

75 

201 

201

368 

852 

510 

358

266

Dec.

227 

361 

292 

220

188

158 

136 

114 

105 

90

78 

76 

76 

75 

75

77 

110 

146 

126 

109

120 

194 

357 

426

361

347 

713 

1,100 

563

396 

292

Jan

227 

182 

146 

126 

108

129 

146 

134

124 

188

188 

156 

134 

128 

a!20

alOO 

a90 

a 80 

114 

473

592 

883 

578 

354 

253

208

168 

141 

a!30 

alls 

a!05

Feb.

a95 

a90 

a85 

80 

77

101 

140 

438 

333 

272

266 

309 

593 

459 

375

347 

272 

227

208 

182

162 

159 

319 

825 

652

547

378 

260

Month SecondMontn foot-days

Octc 

Hove

Deoe

Ca

Jam: 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 194S 

ary e

ember .................. . .

378.0 

,435.0 

,708

,604.2

,620 

,251 

,867 

,938 

964.5 

339.9 

109.3 

97.4 

88.9

ter year 1949-50 .......... 38,797.0

Mar.

201 

182 

280 

628 

585

375 

260 

208 

175 

149

129 

116 

107 

95 

89

136 

341 

305 

375 

286

220

182 

156 

161 

161

159

182 

188 

168 

142 

126

Maximum

128 

852 

1,100

1,130

883 

825 

628 

220 

50 

16.5 

10 

13.5 

14

1,100

Apr.

119 

130 

145 

132 

117

102 

90 

80 

72 

64

59

72 

63 

59

124

201 

220 

182 

142

114

95

86 

74 

64

ei

57 

60 

57 

50 

47

May

50 

49 

44 

43 

45

43 

4-9

39 

37 

37

34 

32 

32 

30

29

28 

32 

37 

30 

28

26 

24 

23 

22 

20

19 

19.5 

18.5 

19 

18 

16.5

June

16 

15 

14.5 

13 

13

13.5 

15.5 

16.5 

14.5 

12.5

12 

11.5 

12 

12 

11.5

10.5 

10 

11 

10 

8.9

8.3 

8.9 

11 

11 

9.5

8.6 

7.6 

8.1 

7.0 

6.5

Minimum Mean

2.2 12.2 

7.8 148 

75 249

1.1 75.6

80 214 

77 295 

89 222 

47 97.9 

16.5 31.1 

6.5 11.3 

1.9 3.53 

1.6 3.14 

1.1 2.96

1.1 106

5 3.6 76 

4.0 124 

4.5 188

1950

July

5.4 

4.7 

4.5 

4.1 

4.1

3.7 

3.6 

3.4 

4.1 

4.1

3.6 

3.4 

2.9 

2.9 

2.8

2.5 

2.3

z'.6 

2.5

2.0 

1.9

1.9 

2.0 

4.7 

10 

6.3 

4.1

Per 

square 

mile

"0.492 

5.97 

10.0

3.05

8.63 

11.9 

8.95 

3.95 

1.25 

.456 

.142 

.127 

.119

4.27

Peak discharge (base, 300 sec. -ft.). Nov. 27 (7:30 a.m.) 1,050 sec. -ft.; Dec.

Aug.

2.9 

2.3 

2.1 

1.9 

1.9

2.1 

2.8 

2.5 

2.1 

2.0

1.8 

1.7 

1.6 

1.8 

9.8

13.5 

6.8 

4.3 

3.1 

2.5

2.1 

2.1 

2.6 

4.5 

3.9

2.9 

2.5

2.1 

1.9 

1.7 

1.6

Sept

1.5 

1.4 

1.3 

1.4 

1.4

1.3 

1.2 

1.2 

1.1 

1.1

1.1 

1.2 

1.2 

1.4 

1.3

1.4 

1.4 

1.8 

1.6 

1.5

1.3 

1.9

1.x

3.4 

11

14

11.5 

8.1 

5.4 

4.1

Runoff

Inch3S

0.57 

6.65 

11.56

41.39

9.93 

12.37 

10.30 

4.41 

1.45 

.51 

.16 

.15 

.13

58.19

28 (4 a.

Acre-feet

750 

8, BOO 

15,290

54,750

13,130 

16,370 

13,620 

5,830 

1,910 

674 

217 

193 

176

76,960

m.) 1,390

sec.-ft.y7an. E2 (iia.mj 1,000 sec.-ft.; Feb. 24 (5 a.m.) 1,000 sec.-ft.

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

Note. Shifting-control method used Oct. 4, 5, Nov. 12-26, Jan. 2O-28, Feb. 4 to Mar. 5, May 6-12, 

Sept. 24-30.
CHEHALIS RIVER BASIN 29

Cloquallum River at Elraa, Wash.

Location. - - Water-stage recorder, lat. 47°00'20", long. 123°23'10", in SjNW^ sec. 36, T. 

18 N.~, R. 6 W., half a mile east of Elma and 1.8 miles downstream from Wildcat Creek.

Drainage area.--66 square miles.

Records available.--July 1942 to October 1943 (fragmentary), July 1944 to September 1950.

Extremes.--Maximum discharge during year, 3,750 second-feet Dec. 28 (gage height, 10.07 

feet); minimum, 21 second-feet Oct. 3.

1942-50: Maximum discharge, that of Dec. 28, 1949; minimum, 6.8 second-feet Sept. 

15, 1945 (gage height, 1.43 feet).

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

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

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

Rating table, water year 1949-50, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

1.8

2.0

2.2

2 4

2.7

3.0

107

168

240

3.3

3.6 

4.0 

4.5 

5.0 

5.5

320

410

535

710

910

1,110

6.0 

7.0

8.0

9.0

10.0

1,330 

1,81O 

2,360 

2,970 

3,670

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

26 

24 

22 

48 

65

55 

46 

35

73 

75

63 

55 

46 

38 

34

34 

30

,-30 '28 

29

29 

28 

26 

26 

25

37 

67 

391 

177 

111 

90

Nov.

77 

67 

62 

55 

53

50 

47 

77 

96 

113

290 

720 

728 

500 

326

213

149 

117 

92 

75

65 

86 

131 

58

440

1,090 

1,810 

1,020 

658 

518

Dec.

535 

730 

588 

470 

425

359 

311 

282 

260 

235

218 

222 

232 

220 

222

222

260 

265 

240 

228

235 

305

521 

696 

820

790 

1,600 

3,220 

1,910 

1,160 

87O

Jan.

640 

485 

410 

359 

317

395 

410 

353 

323 

538

470 

395 

329 

296 

280

258 

235 

210 

313 

996

1,330 

1,600 

1,160 

770 

552

470 

395 

338 

296 

272 

245

Feb.

235 

225 

218 

232 

235

293 

335

718

640 

605

622 

745 

1,230 

1,030 

990

1,010 

770 

605 

570 

500

455 

518

861 

1,960 

1,860

1,910 

1,260 

880

Month SecondMonth foot-days

Ootc 

Nove 

Dece

Cs

Jani 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augi 

Sepl

Wa

lendar year 1949 ......

ary

"ua.ry

1,869 

9,783 

8,651

83,211

1 

?

st ............... ........

ember ............. .......

5,440

1,512 

2,683 

9,037 

3,863 

1,960 

1,188 

1,103 

957

ter year 1949-50 . ........ 108,052

Peak discharge, (base, 1,50O sec. -ft.). 

sec. -ft.; Jan. 22 (10 a.m.) 1,760 sec. -ft.;

Mar.

675

622 

1,140 

2,020 

1,760

1,360 

890 

692 

605 

518

455 

395 

374 

344 

326

642 

1,310 

1,070 

1,110 

830

675 

605 

535 

535 

500

470 

552 

485 

425 

395 

368

Maximum

391 

1,810 

3,220

3,220

1,600 

1,960 

2,020 

605 

189 

83 

53 

88 

80

3,220

Apr.

395 

410 

380 

344 

320

290 

270 

248 

230 

213

210 

262 

238 

222

504

605 

570 

455 

374 

320

278 

265 

242 

218

205

198 

220 

198 

180 

173

May

189 

182 

164

160 

168

162 

155 

145 

141 

135

131 

127 

121 

117 

113

109 

131 

145 

129 

117

111 

105 

101 

98 

94

90 

94 

84 

88 

84 

79

June

79 

75

70 

68 

67

70 

79 

79 

74

67

65 

65 

65 

63

62

58 

58

65 

63 

58

56 

62 

75 

83 

65

60 

55 

56 

50 

48

P 

Minimum Mean sqi

July

47 

44 

42 

42

42

41 

33 

41 

46 

42

41 

3S 

37 

37 

37

35 

31

33 

33 

32

32

32

34 

53 

4<S 

38 

34

Aug.

33 

30 

29 

29 

29

33 

34 

30 

30 

29

28 

28 

28 

32 

88

67 

42 

35 

33 

32

30 

30 

44 

55 

41

35 

32 

30 

29 

29 

29

Sept

28 

28 

23 

28 

28

26 

25 

24 

24

24

24 

24 

24 

24 

24

25 

25 

25 

25 

25

25 

24 

30

60 

80

65 

55 

45 

35 

30

er Runoff

Lie lucres

22 60.3 0.914 1.05 

47 326 4.94 5.51 

218 602 9.12 10.51

22 228 3.45 46.89

210 498 7.55 8.70 

218 768 11.6 12.12 

326 732 11.1 12.78 

173 301 4.56 5.09 

79 125 1.89 2.18 

48 65.3 .989 1.10 

32 38.3 .580 .67 

28 35.6 .539 .62 

24 31.9 .483 .54

22 296 4.48 6O.87

Nov. 27 (7 a.m.) 2,130 sec. -ft.; Dec. E8 (8 a 

Feb. 24 (7 a.m.) 2,300 sec. -ft.; Mar. 4 (9 a

Ac re- feet

3,710 

19,400 

36,990

165,000

30,620 

42,670 

44,990 

17,920 

7,670 

3,890 

2,360 

2,190 

1,900

214,300

.m.) 3,750 

.m.) 2,240

aec.-ft.

Note. No gage-height record Sept. 10-3O; discharge computed on basis of recorded range in stage 

and records for nearby streams. Shifting-control method used Oct. 1 to Nov. 27, Jan. 21 to Feb. 24, 

Apr. 15 to May 27, Aug. 15 to Sept. 9.
30 CHEHALIS RIVER BASIN

Satsop River near Satsop, Wash.

Location.--Water-stage recorder, lat. 47°00'05", long. 128°29'40", in sec. 36, T. 18 N., 

K. 'I tf., 1 mile west of Satsop and lj miles upstream from mouth. Datum o p gage.is at 

mean sea level, datum of 1929.

Drainage area. 315 square miles.

Records available. March 1929 to September 1950.

Average discharge.--21 years, 1,902 second-feet.

Extremes.--Maximum discharge during year, 27,600 second-feet Dec. 28 (elevation, 34.80 

feet); minimum, 212 second-feet Sept. 22 (elevation, 23.84 feet).

1929-50: Maximum discharge, 52,500 second-feet Jan. 22, 1935 (elevation, 38.9 feet, 

from floodmarks), from rating curve extended above 17,000 second-feet; minimum, 166 

second-feet Sept. 21, 1938.

Remarks.--Records good. No diversion or regulation.

Rating tables, water year 1949-5O (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1-Z8)

Oct. 1 to Nov. 26 Nov. 27 to Sept. 30

24.0 235 24.7 866 23.8 190 £4.7 880 26.5 3,460 

24.2 395 25.0 1,190 24.0 305 25.0 1,190 27.0 4,440 

24.4 571 24.2 440 25.5 1,780 28.0 6,650 

Note. --Same as following 24.4 600 26. O 2,560 29.0 9,150 

table above 25.0 feet. 

Discharge, in second-feet, water year October 1949 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

Oct.

258 

258 

251 

395 

609

600 

508 

447 

1,010 

1,410

1,340 

1,200 

926 

786 

696

618 

562 

517 

481 

455

429 

412 

395 

379 

362

387 

517 

f3,840 

f2,820 

1,720 

1,350

Nov.

1,130 

977 

886 

836 

766

726 

686 

826 

1,520 

1,640

6,120 

7,900 

7,150 

7,900 

5,180

3,460 

2,640 

2,230 

1,850 

1,650

1,470 

1,530 

2,910 

3,270 

5,730

12,200 

21,800 

10,200 

6,900 

5,290

Dec.

8,150 

11,200 

6,550 

4,860 

4,240

3,840 

3,180 

2,730 

2,390 

2,150

1,920 

1,850 

1,780 

1,720 

1,680

1,680 

1,920 

2,000 

1,780 

1,660

1,640 

2,000 

4,060 

5,730 

5,400

5,510 

11,800 

26,400 

16,100 

9,400 

6,650

Jan.

5 

4 

3 

3 

2

2 

2 

2 

2

2

1 

1

1

1 

1 

1 

1 

6

14 

13 

9 

5 

4

3

2 

2 

2 

2 

1

Month

Ootc 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 194 

ary

ember .....................

ter year 1949-50 ..........

Peak discharge (base, 13,500

,O70 

,040 

,460 

,000 

,640

,820 

,730 

,390 

,230 

,560

,390 

,150 

,920 

,750 

,660

,600 

,520 

,380 

,700 

,860

,000 

,400 

,150 

,730 

,240

,560 

,910 

,560 

,230 

,000 

,730

Feb.

1.65C 

1,52C 

1.47C 

1.60C 

1.77C

2,15C 

2.31C 

3,84C 

3.94C 

3.56C

3,84C 

4,34C 

8,90C 

7.90C 

9,65C

11,60C 

7,40C 

5,730 

5.29C 

4,760

4,440 

6,42C 

7,65C 

12.2OC 

12.20C

18,OOC 

10,400 

6,900

Secondfoot-days

25,938 

127,373 

162,070

719,386

115,380 

171,430 

185,460 

85,430 

38,630 

19,315 

11,860 

12,089 

9,615

964,590

Mar.

5,290 

4,860 

10,600 

18,300 

13,100

9,900 

6,900 

5,510 

4,860 

4,340

3,740 

3,180 

2,910 

2,640 

2,480

4,860 

9,150 

8,150 

8,400 

6,650

5,730 

5,180 

4,960 

5,730 

5,180

4,340 

4,540 

4,240 

3,650 

3,180 

2,910

Maximum

3,840 

21,800 

26,400

26,400

14,000 

18,000 

18,300 

7,150 

1,650 

860 

456 

800 

890

26,400

Apr.

3,180 

3,460 

3,180 

2,820 

2,560

2,480 

2,310 

2,070 

1,920 

1,780

1,780 

2,560 

2,910 

2,560 

5,730

6,650 

7,150 

4,650 

3,560 

3,090

2,730 

2,390 

2,150 

1,920 

T ,770

1,630 

1,750 

1,640 

1,540 

1,510

May

1

1 

1 

1

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1

1 

1 

1

1

1

Minimum

251 

686 

1,640

191

1,380 

1,470 

2,480 

1,510 

880 

480 

312 

263 

212

212

sec. -ft.). --Nov. 27 (8 a.m.) 27

;sso

,650 

,550 

,450 

,530

,450 

,390 

,320 

,300 

,280

,290 

,410 

,410 

,340 

,270

,210 

,220 

,320 

,220 

,220

,190 

,160 

,090 

,020 

,000

,010 

,010 

980 

960 

920 

880

June

860 

850 

810 

790 

780

762 

771 

753 

708 

690

681 

672 

654 

636 

618

600 

600 

600 

584 

568

536 

560 

584 

568 

544

528 

520 

512 

496 

480

Mean

837 

4,246 

5,228

1,971

3,722 

6,122 

5,983 

2,848 

1,246 

644 

383 

390 

320

2,643

,200 sec.-

30.0 11,600 

31.5 16,100 

53.0 21,100 

34.5 26,400

1950

July

456 

440 

440 

433 

426

412 

398 

405 

448 

426

398 

391 

384 

377 

370

370 

370 

364 

364 

357

344 

331 

331 

324 

318

312 

318 

412 

433 

370 

338

Per 

square 

mile

2.66 

13.5 

16.6

6.26

11.8 

19.4 

19.0 

9.04 

3.96 

2.04 

1.22 

1.24 

1.02

8.39

ft.; Dec

Aug.

318 

312 

305 

299 

299

305 

312 

299 

287 

281

275 

263 

263 

287 

800

800 

560 

456 

419

377

350 

338 

377 

568 

592

504 

433 

391 

357 

344 

318

Sept.

305 

293 

287 

281 

269

263 

257 

251 

245 

251

251 

251 

245 

245 

240

234 

234 

228 

223 

218

218 

212 

218 

324 

536

890 

726 

552 

456 

41Z

Runoff

Inches

3.06 

15.04 

19.13

84.94

13.62 

20.24 

21.90 

10.09 

4.56 

2.28 

1.40 

1.43 

1.14

113.89

. 28 (11

Acre-feet

51,450 

252,600 

321,500

1,427,000

228,900 

340,000 

367,900 

169,400 

76,620 

38,310 

23,520 

23,980 

19,070

1,913,000

:30 a.m.)

27,600 sec.-ft7; Jan. 21 (12 . , . .___ ._ _ _. _.., __.. __ ,___ 

(10:30 a.m.) 21,400 sec.-ft.; Mar. 4 (5:30 a.m.) 22,800 sec.-ft. 

f Computed on basis of partly estimated gage-height record.
CHEHALIS RIVER BASIN 31

Wynooehee River at Oxbow, near Aberdeen, Wash.

Location. Water -stage recorder, lat. 47°20', long. 123°39', in SW^SWf sec. 1, T. 21 N., 

R. 8 W. , at Oxbow, 25 miles northeast of Aberdeen.

Drainage area. About 65 square miles (uncertain because of Inadequate maps) 

Records available. --May 1925 to September 1950. 

Average discharge. --2 5 years, 767 second-feet.

Extremes . Maximum discharge during year, 16,400 second-feet Nov. 26 (gage height, 25.46 

feet , from high-water mark), from rating curve extended above 3,000 second-feet on basis 

of slope-area determination of peak flow; minimum, 97 second-feet Sept. 22, 23 (gage 

height, 1.13 feet).

1925-50: Maximum discharge, 18,000 second-feet Jan. 22, 1935 (gage height, 30.3 

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

5,300 second-feet; minimum, 64 second-feet Jan. 27, 1949 (gage height, 1.05 feet).

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

those for periods of no gage-height record, which are poor. No diversion or regulation.

Rating table, water year 1949-50, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet)

1.2 109 2.3 735 10.0 7,300 

1.4 178 2.6 1,000 13.0 9,400 

1.6 270 3.0 1,390 16.5 11,500 

1.8 381 5.0 3,390 21.0 14,100 

2.0 511 7.0 5,190

Discharge, In second-feet, water year* October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

148 

137 

137 

329 

431

323 

302 

260 

1,030 

752

1,040 

695 

518 

438 

425

369 

352 

323 

302 

291

275 

265 

256 

241 

232

256 

386 

2,190 

892 

588 

478

Nov.

406 

375 

340 

323

312

302 

291 

557 

1,040 

1,050

3,490 

2,590 

2,790 

2,690 

1,590

1,170 

964 

838 

711 

625

553 

1,390 

1,390 

1,590 

3,190

fl 1,200 

f8, 950 

3,490 

2,190 

1,890

Dec.

6,880 

5,020 

2,390 

1,790 

1,690

1,440 

1,180 

1,020 

937 

803

719 

679 

640 

603 

625

588 

588 

532 

498 

484

464 

663 

1,640 

1,270 

1,340

1,270 

7,310 

10,300 

6,100 

2,790 

1,940

Jan.

1,540 

1,390 

1,200 

900 

980

930 

870 

750 

8*0 

810

740 

640 

590 

550 

520

500 

480 

520 

600 

3,000

5,500 

4,000 

f3,090 

1,600 

1,100

1,000 

829 

744 

679 

633 

581

Feb.

546 

498 

484 

633 

633

847 

727 

829 

687 

687

695 

838 

1,640 

1,390 

4,440

3,090 

1,940 

1,640 

1,590 

1,340

1,390 

1,840 

1,940 

2,440 

5,160

6,230 

2,590 

1,840

Month

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Hare 

Apr!

Mflv

June 

July 

(tugu 

Sept

Wa

nber. ...................................

lendar year 194£

h.......................................

ter year 1949-50 .......................

Mar.

1,540 

1,640 

6,150 

4,170 

3,890

2,490 

1,890 

1,590 

1,440 

1,220

1,080 

955 

892 

838 

937

1,890 

2,190 

1,940 

1,890 

1,540

1,340 

1,290 

1,290 

1,390 

1,180

1,100 

1,160 

1,050 

892 

803 

778

Apr.

1, 

1,

1, 

1, 

1, 

2,

2, 

2,

1, 

1, 

1,

1,

Secondfoot -days

14,661 

58,287 

64,193

302,935

38,116 

48,604 

52,445 

31,662 

21,067 

19,847 

10,657 

8,710 

4,587

372,836

Peak discharge (base, 6.800 sec. -ft.). Nov. 26 (time

070 

030 

910 

812 

812

820 

752 

679 

648 

640

769 

540 

340 

230 

590

690 

340 

440 

180 

160

070 

955 

803 

719 

663

625 

625 

588 

574 

588

May

663 

671 

618 

603 

618

588 

553 

546

539 

567

703 

964 

982 

892 

820

744 

735 

663 

648 

625

625 

655 

603 

581 

611

735 

865 

744 

663 

625 

618

Maximum

2,190 

11,200 

10,300

11,200

5,500 

6,230 

6,150 

2,690 

982 

883 

567 

1,490 

375

11,200

June

719 

752 

803 

883 

778

640 

588 

574 

588 

655

719 

769 

663 

618 

611

727 

856 

703 

719 

760

679 

611 

633 

546 

504

471 

504 

560 

611 

603

July

567 

539 

539 

532 

504

471 

419 

451 

451 

375

335 

329 

335 

335 

312

296 

291 

296 

296

275

265 

260 

260 

251 

241

227 

218 

323 

251 

213 

200

Aug.

187 

178 

170 

163 

151

159 

148 

144 

140 

137

134 

131 

128 

302 

1,490

581 

400 

323 

281 

246

232 

222 

318 

498 

387

312 

275 

241 

227 

209 

196

Minimum Mein

137 473 

291 1,943 

464 2,071

107 830

480 1,230 

484 1,736 

778 1,692 

574 1,055 

539 680 

471 662 

200 344 

128 281 

97 153

97 1,021

unknown) 16,400 sec.-ft.j Dec. 1

Sept.

187 

178 

170 

159 

151

148 

144 

140 

134 

131

128 

124 

121 

118 

115

112 

109 

107 

104 

102

99 

97 

99 

167 

291

375 

256 

200 

170 

151

Runoff In 

acre-feet

29,080 

115,600 

127.3OO

600,800

75,600 

96,400 

104,000 

62,800 

41,790 

39,370 

21,140 

17,280 

9,100

739,500

(9 P.m.)

(5 p.m.) 7,160 sec.-ft.; Feb. 25 (12 p.m.) 11,000 sec.-ft.; Mar. 3 (4:30 p.m.) 9,260 sec.-ft.

f Computed on basis of partly estimated gage-height record.

Note. No gage-height record Jan. 3-22, 24; discharge computed on basis of records for Satsop River 

near Satsop. Shifting-control method used Oct. 1, Mar. 24 to Apr. 17j June 7 to Sept. 30.
HUMPTOLIPS RIVER BASIN

Humptulips River near Humptulips, Wash.

Location.--Water-stage recorder, lat. 47°13'45", long. 123°56'30", in NE^ sec. 17, T. 20 

 F77TT. 10 W., at abandoned bridge site, 1 mile southeast of Humptulips, 2.5 miles upstream from Stevens Creek, and 3^ miles downstream from Porks. Datum of gage is 117.4 

feet above mean sea level (river-profile survey). Prior to Mar. 1, 1950, staff gage 

at same site and datum.

Drainage area.--125 square miles.

Records available.--May 1933 to January 1935, July 1942 to September 1950.

Extremes.--Maximum discharge during year, 22,200 second-feet Nov. 26 (gage height, 10.5 

feet, from high-water mark); minimum, 174 second-feet Aug. 12, 13 (gage height, 0.87 

foot).

1333-35, 1942-50: Maximum discharge, 33,000 second-feet (revised) Jan. 22, 1935 

(gage height, 12.7 feet, from floodmarks), from rating curve extended above 5,500 

second-feet; minimum observed, 82 second-feet Sept. 11, 1944".

Revisions.--The maximum discharge for the period October 1934 to January 1935 has 

been revised to 33,000 second-feet Jan. 22, 1935 (gage height, 12.7 feet, from floodmarks) , superseding figure published in Water-Supply Paper 792.

Remarks.--Records poor October to February; good March to September. 

gage' read every other day. No diversion or regulation.

Prior to Mar. 1,

Discharge, in second-feet, water year October 1949 to September 195o

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

199

192

406

946

1,120

724

562

548

991

1,680

1,580

1,460

1,170

1,250

1,100

865

676

520

484

448

400

365

350

340

340

335

436

4,210

2,540

1,000

955

Nov.

910

724

569

496

424

400

385

502

1,630

2,340

6,370

7,260

5,340

5,740

3,280

2,220

1,630

1,370

1,180

1,000

856

1,130

2,160

2,67O

6,810

4,200

10,100

5,540

3,040

2,670

-

Dec.

7,590

10,400

4,300

3,280

2,960

2,340

1,860

1,680

1,520

1,400

1,280

1,150

1,010

1,060

1, 110

1,140

1,170

1,050

946

973

1,000

1,460

2,820

4,300

3,860

3,940

12,500

20,400

11,000

5,950

3,440

Jan.

2,670

2,340

1,340

1,460

1,460

1,410

1,520

1,630

1,410

1,180

1,150

1,120

1,050

982

937

892

874

847

1,260

5,540

12,500

9,050

6,160

2,960

.2,280

2,100

1,740

1,330

1,100

982

772

Month

October .......................

November .......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April .........................

May ...........................

June ... ......................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

829

829

796

856

1,680

2,220

1,980

1,800

1,920

1,680

1,800

2,040

4,950

4,950

6,810

4,660

5,340

3,690

2,470

2,220

2,740

4,210

4,300

7,820

6,590

12,500

5,340

3,120

_

_

-

Secondfoot-days

28, 192

92,946

118,889

500,108

72,046

100,140

96,84O

57 , 628

29,045

16,557

8, 988

12,510 

8,518

642,299

Mar.

2,340

2,440

8,340

8,140

6,680

4,860

3,360

2,600

2,340

1,980

1,680

1,460

1,330

1,190

1,210

3,760

5,140

4,660

4,570

3,440

2,820

2,600

2,540

2,960

2,540

2,220

2,470

2,220

1,860

1,630

1,460

Maximum

4,210

14,200

20,400

20,400

12,500

12 , 5OC

8,340

5,360

1,180

400

2,230 

780

20,400

Apr.

1,980

2,100

1,980

1,680

1,520

1,520

1,320

1,180

1,090

1,030

1,250

2,740

2,470

2,100

5,360

5,090

4,600

2,820

2,160

1,920

1,680

1,520

1,380

1,190

1,090

991

1,110

973

901

883

May

1,020

1,110

1,000

946

1,110

1,100

991

928

874

847

901

1,150

1,180

1,110

1,020

937

973

937

964

919

883

883

829

764

748

812

973

874

838

732

692

Minimum

192

385

946

162

772

796

1,190 

883

692

390

210

174 

185

174

June

716

732

732

780

740

639

576

555

527

555

590

625

569

514

502

508

597

548

502

514

502

502

555

496

442

400

390

395

430

424

Mean

909

3,098

3,835

1,370

2, 32,4

3,576

3,124

1,921

937

552

290

404

284

1,760

July

395

380

375

3^5

355

340

330

340

400

350

315

284

280

280

276

260

252

252

256

248

236

224

220

216

213

210

213

345

310

248

220

Per 

square 

mile

7.27

24.8

30.7

11.0

18 . 6

23 » 6

25 0

15 '.4

7.50

4.42

2.32

3 . 23

2^27

14.1

Aug.

2,

210

202

199

192

188

240

216

196

185

182

182

174

178

240

230

856

604

466

400

360

335

315

400

812

660

508

430

375

345

325

305

Sept.

292

284

268

260

256

248

236

228

224

224

220

216

213

213

202

199

196

192

196

192

188

185

202

390

541

780

548

430

370

325

-

Runoff

Inches

8.39

27.65

35.37

148.79

21.44

29 79

?fl "fll

l?i 15

8.64

4 . 93

2.67

3. 72

2!s3

191.09

Acre-feet

55,920

184,400

235,800

992,000

142,900

1 Q9* 1 HO

114J 300

57,610

32,840

17,830

24, 81O 

16,900

1,274,090
QUINAULT RIVER BASIN 33

Quinault River at Quinault Lake, Wash.

Location.--Water-stage recorder, lat. 47°27'30", long. 123°53'30", in sec. 25, T. 23 N., 

H. 1U W., at outlet of Quinault Lake, 4 miles southwest of Quinault.

Drainage area.--264 square miles.

Records available. October 1911 to September 1950.

Average discharge.--39 years, 2,696 second-feet.

Extremes. Maximum discharge during year, 42,300 second-feet Nov. 27 (gage height, 18.60 

reet) , from rating curve extended above 25,000 second-feet; minimum, 624 second-feet 

Sept. 23 (gage height, 2.59 feet).

1911-22, 1924-32, 1933-50: Maximum discharge, that of Nov. 27, 1949; minimum, 276 

second-feet Sept. 12, 1944 (gage height, 1.96 feet).

Remarks. Records good. Slight natural regulation by Quinault Lake. No diversion. 

Revisions.--W 442: Drainage area.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

2.6 

3.0 

3.5 

4.0 

4.5 

5.0

630

940

1,400

1,920

2,530

3,250

5.5 

6.0 

7.0

4,040

4,880

6,700

8,700

10,800

13,100

11.0

12.0

13.0

14.5

16.0

17.5

15,700

18,600

21,800

26,800

32,000

37,900

Discharge, in second-feet, water year October 1949 to September 1930

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

900 

868 

836 

1,080 

1,500

1,600 

1,500 

1,400 

1,980 

2,670

2,950 

2,950 

2,600 

2,210 

2,090

1,980 

1,810 

1,650 

1,500 

1,400

1,300 

1,210 

1,150 

1,100 

1,050

1,060 

1,150 

3,700 

4,040 

3,250 

2,600

Nov.

2,150 

1,920 

1,700 

1,550 

1,400

1,300 

1,260 

1,400 

2,090 

2,400

4,400 

7,500 

8,500 

9,540 

7,700

5,760 

4,710 

4,120 

3,640 

3,180

2,810 

3,250 

5,580 

5,760 

8,910

18,000 

36,900 

21,400 

12,600 

8,910

Dec.

12,200 

18,600 

12,200 

8,500 

6,900

5,940 

5,050 

4,280 

3,720 

3,250

2,880 

2,670 

2,460 

2,270 

2,270

2,270 

2,270 

2,270 

2,090 

1,980

1,860 

2,030 

2,810 

3,800 

3,880

3,880 

7,440 

20,200 

21,000 

12,900 

8,300

Jan.

5,940 

4,540 

3,720 

3,180 

2,810

2,600 

2,400 

2,150 

2,030 

2,030

1,980 

1,860 

1,760 

1,600 

1,500

1,400 

1,350 

1,300 

1,500 

4,270

11,500 

11,700 

8,700 

6,130 

4,540

3,720 

3,100 

2,670 

2,340 

2,090 

1,920

Feb.

1,760 

1,650 

1,550 

1,650 

1,810

2,150 

2,270 

2,600 

2,600 

2,400

2,400 

2,400 

3,180 

3,640 

5,800

9,120 

7,100 

5,400 

4,710 

4,120

3,800 

4,280 

4,370 

5,580 

6,900

14,200 

10,800 

7,500

Mnn-tt. Second 

Month foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Juls 

Augu 

Sept

Wa

mber ...................... 1

57,084 

00,340 

92,170

lendar year 1949 ........ 1,142,697

1

h ]

embe r .....................

08,330 

25,740 

36,920 

96,620 

86,600 

23,460 

95,230 

54,890 

26,093

ter year 1949-50 .......... 1,303,477

Peak discharge (base, 12,000 sec. -ft.).- -

20,500 sec. -ft. j Dec. 28 (8 to 9 p.m.) 24,4 

(12 m.) 15,700 sec. -ft.) Mar. 4 (7 a.m.) 12

Mar.

5,400 

4,540 

7,000 

11,900 

10,400

8,910 

6,900 

5,400 

4,540 

3,880

3,400 

2,950 

2,600 

2,400 

2,270

2,810 

3,720 

4,370 

4,880 

4,710

4,040 

3,720 

3,400 

3,400 

3,250

2,950 

2,950 

2,950 

2,670 

2,400 

2,210

Maximum

4,040 

36,900 

21,000

36,900

11,700 

14,200 

11,900 

7,900 

3,960 

5,220 

4,540 

3,640 

1,190

36,900

Apr.

2,400 

2,530 

2,600 

2,400 

2,270

2,210 

2,150 

2,030 

1,920 

1,810

1,920 

3,100 

4,120 

3,960 

5,220

6,510 

7,900 

6,320 

4,880 

4,200

3,880 

3,560 

3,iQO 

2,810 

2,530

2,270 

2,210 

2,030 

1,920 

1,860

May

1,920 

2,030 

2,030 

1,920 

1,980

1,980 

1,920 

1,860 

1,860 

1,920

2,150 

2,810 

3,560 

3,960 

3,960

3,800 

3,560 

3,320 

3,020 

2,740

2,670 

2,810 

2,810 

2,740 

2,670

2,950 

3,560 

3,800 

3,640 

3,400 

3,250

Minimum

836 

1,260 

1,860

679

1,300 

1,550 

2,210 

1,810 

1,860 

3,320 

1,980 

1,210 

630

630

June

3,320 

3,640 

3,880 

4,280 

4,540

4,120 

3,640 

3,400 

3,320 

3,400

3,720 

4,200 

4,370 

4,200 

4,040

4,280 

4,880 

5,050 

5,050 

5,220

5,050 

4,710 

4,540 

4,200 

3,720

3,400 

3,320 

3,560 

4,040 

4,370

Mean

1,841 

6,678 

6,199

3,131

3,495 

4,491

4,417 

3,221 

2,794

4,115 

3,072 

1,771 

870

3,571

July

4,540 

4,280 

4,20") 

4,20") 

4,28")

4,201 

3,960 

3,720 

3,800 

3,480

3,100 

2,810 

2,810 

2,880 

2,810

2,670 

2 , 600 

2,670 

2,740 

2,670

2,530 

2,600 

2,670 

2,670 

2,670

2,530 

2,400 

2,400 

2,270 

2,090 

1,960

Per 

square 

mile

6.97 

25.3 

23.5

11.9

13.2 

17.0

16.7 

12.2 

10.6 

15.6 

11.6 

6.71 

3.30

13.5

Yov. 27 (5 to 6 a.m.) 42,300 sec. -ft. 

DO sec. -ft.; Jan. 21 (5 p.m.) 12,900 

,600 sec. -ft.

Aug.

1,920 

1,860 

1,810 

1,650 

1,550

1,550 

1,500 

1,400 

1,350 

1,300

1,300 

1,300 

1,300 

1,400 

3,640

3,640 

2,950 

2,400 

2,150 

1,920

1,760 

1,650 

1,650 

1,760 

1,760

1,650 

1,550 

1,400 

1,350 

1,260 

1,210

Sept.

1,150 

1,130 

1,110 

1,090 

1,030

976 

940 

900 

860 

844

796 

780 

772 

764 

740

716 

700 

693 

679 

665

644 

630 

630 

700 

836

1,120 

1,190 

1,10O 

1,000 

908

Runoff

Inches

8.04 

28.22 

27.07

160.97

15.26 

17.71 

19.29 

13.61 

12.20 

17.39 

13.42 

7.73 

3.68

183.62

, Dec. 2 

sec. -ft.

Ac re- feet

113,200 

397,400 

381,200

2,267,000

214,900 

249,400 

271,600 

191, -600 

171,800 

244,900 

188,900 

108,900 

51,750

2,586,000

(4:30 a.m.) 

Feb. 26
34 HOH RIVER BASIN

Hoh River near Spruce, Wash.

long. 124°06'20", in sec. 34, T. 27 N., 

miles downstream from Sptrce, and

Location. --Water-stage recorder, lat . 47°48'20"

H. li W. , 1 mile downstream from Maple Creek,

5 miles downstream from South Pork. 

Drainage area.- -193 square miles. 

hecoras available. --August 1926 to September 1950. 

Average aiscnarge'. 24 years, 1,948 second-feet. 

Extremes . Maximum discharge during year, 38,700 second-feet Nov. 26 (gage height, 22.2

reet , from high-water marks), from rating curve extended above 13,000 secord-feet on

basis of slope-area determination of peak flow; minimum, 508 second-feet Sept. 30 (gage

height, 1.27 feet).

1926-50:. Maximum discharge, that of Nov. 26, 1949; minimum, 247 second-feet Nov.

14, 15, 1929; minimum gage height, 0.68 foot Oct. 18, 19, 1946. 

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

Revisions. The maximum discharge for the water year 1935 has been revised to 36,100

secona-reet Nov. 5, 1934 (gage height, 21.2 feet, from high-water mark in page structure), superseding figure published in Water-Supply Paper 792. 

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

wo diversion or artificial regulation. Large diurnal fluctuation during srmmer months

caused by melting glaciers at source.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

1.3 

1.5 

1.8 

2.1 

2.5 

3.0

523

588

693

810

990

1,250

3.5

4.0 

4.5 

5.0 

6.0 

7.0

1,550

1,900

2,300

2,740

3,750

4,950

8.0

9.0

10.0

12.0

14.0

6,400

8,100

10,100

14,300

18,700

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

831

770

712

1,760

1,760

1,520

1,220

1,060

3,310

2,140

2,740

2,220

1,690

1,460

2,220

1,620

1,370

1,220

1,120

1,040

966

919

874

831

810

831

1,080

5,570

2,380

1,750

1,490

Nov.

1,340

1,250

1,140

1,090

1,060

990

942

1,490

1,830

1,490

3,330

3,230

5,150

5,000

3,230

2,650

2,470

3,030

2,220

1,800

1,660

4,250

3,750

3,640

7,500

17,000

18,000

8,290

5,500

4,570

-

Dec.

12,100

10,200

5,640

4,450

4,330

3,530

3,030

2,650

2,470

2,140

1,980

1,980

1,860

1,800

1,940

1,860

1,940

1,720

1,550

1,520

1,340

1,760

3,180

2,740

2,740

2,560

8,810

15,800

10,500

5,500

3,860

Jan.

3,030

2,560

2,220

2,060

1,940

2,060

1,940

1,800

1,760

2,020

1,830

1,760

1,720

al,650

al,600

al,600

al,550

al,520

al.800

a3,500

a6,000

a5,400

a4, 100

a3,500

a3,000

a2,750

a2 , 500

a2,300

a2,100

al,950

al,800

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April .........................

Unv May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

al,650

al,580

al,520

al,550

1,600

1,620

1,490

1,940

1,550

1,490

1,460

1,720

2,930

2,470

6,620

5,400

3,330

2,830

2,740

2,300

2,300

2,930

3,030

4,450

7,490

f 11, 300

5,220

3,640

_

_

-

Secondfoot-days

49,294

118,892

127,480

786,052

75,320

88,150

82 , 180

62,580

51,350

77,900

64,820

46,118 

23,763

867,847

Mar.

2,930

2,830

7,100

6,560

5,790

4,570

3,530

2,930

2,560

2,220

1,940

1,720

1,580

1,490

1,520

2,060

2,740

2,930

3,330

2,650

2,220

2,060

1,900

1,980

1,720

1,660

1,800

1,690

1,490

1,370

1,310

Maximum

5,570

18,000

15,800

18,000

6,000

11,300

7,100

5,080

2,650

3,530

2,740

4,540 

1,190

18,000

Apr.

1,720

1,830

1,690

1,520

1,490

1,460

1,370

1,250

1,160

1,160

1,830

3,860

2,830

2,380

4,570

5,080

4,570

3,030

2,380

2,380

2,220

2,020

1,720

1,550

1,430

1,340

1,280

1,160

1,140

1,160

May

1,220

1,220

1,160

1,140

1,220

1,190

1,120

1,090

1,120

1,160

1,620

2,220

2,300

2,140

1,980

1,860

1,830

1,620

1,520

1,430

1,660

1,980

1,720

1,580

1,690

2,060

2,650

2,220

1,940

1,860

1,830

Minimum

712

942

1,340

572

1,520

1,460

1,310

1,140

1,090

1*300

1,520

539

539

June

2,060

2,220

2,470

2,740

2,560

2,060

1,800

1,980

2,060

2,220

2,470

2,830

2,740

2,740

2,560

3,130

3,530

3,330

3,430

3,330

2,930

2,740

2,830

2,300

2,020

1,900

2,220

2,740

3,030

2,930

Mean

1,590

3,963

4,112

2,154

2 430

3*148

2,651

2,086

1,656 

2 597

2,091

1,488 

792

2,378

July

2,740

2,470

2,560

2,740

2,650

2,560

2,220

2,300

2/650

2,060

1,800

1,760

1,980

1,980

1,860

1,760

1,830

2,020

2,140

1,900

1,860

2,140

2,220

2,220

2,060

1,940

1,760

1,940

1,660

1,520

1,520

Per 

square 

mile

8.24

20.5

21.3

11.2

12 . 6

16.3 

13.7

10 . 8 

8. 58

13.5 10 8

j'.Ti

4.10

12.3

Aug.

1,620

1,

1,

1,

320

570

>20

1,140

1,250

1,

1,

1,

'.50

L60

L40

1,160

1,220

1,

1,

1,

L90

L60

380

4,540

2,560

vIff

Iff

»40

90

20

1,580

1,520

lf<

lf<

IfE

1,60

1,90

80

1,370

1,250

I,'

IfC

lf<

1

(

'20

)60

)20

42

!96

Sept.

1,020

1,120

1,120

966

852

790

731

693

712

712

712

712

731

712

712

693

675

675

657

640

693

731

731

990

1,190

1,160

831

675

588

539

-

Runoff

Inches

9.50

22.91

24.56

151.47

14.51 16 . 99

15.84

12.06 

9 . 89

15.01

12 49

8 89

4^58

167.23

Acre feet

97,770

235,800

252,900

1,559,000

149,400

174,800

163,000 

124 100

10*1, 900

154,500

128,600

91,470 

47.130

1,721,000

Peak discharge (base. 10.000 see.-ft.).--Nov. 26 (11 p.m.) 38,700 sec.-ft.) Dec. 1 (7 p.m.) 18,300 

sec.-ft.; Dec. 28 (3 to 4 p.m.) 18,300 sec.-ft.; Feb. 26 (time unknown) 16,900 sec.-ft. ' a No gage-height record; discharge computed on basis of recorded range In stage and records for 

Wynoochee River at Oxbow, near Aberdeen.

f Computed on basis of partly estimated gage-height record.
QUILLAYUTE RIVER BASIN 35

Soleduck River near Pairholm, Wash.

Location.--Water-stage recorder, lat. 48°02'30", long. 123°57'30", In lot 4, sec. 35, T.

au w. , R. 10 W. , 300 feet downstream from South Pork, 2.5 miles southwest of Pairholm,

and 17 miles east of Beaver. 

Drainage area.--84 square miles.

Hecords available.--October 1917 to September 1921, October 1933 to September 1950. 

Average aisenarge.--21 years, 605 second-feet. 

Extremes. Maximum discharge during year, 23,500 second-feet Nov. 26 (gage height, 16.42

reet, from high-water mark in well), from rating curve extended above 5,300 second-feet

on basis of slope-area determination of peak flow; minimum, 116 second-feet Sept. 23

(gage height, 1.17 feet).

1917-21, 1933-50: Maximum discharge, that of Nov. 26, 1949; minimum, 51 second-feet

Sept. 11, 12, 1944 (gage height, 1.07 feet).

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

as snown in the following table. They supersede those published in the water-supply

papers indicated.

Water-Supply 

Paper

482.........

512.........

512. ........

532.........

767.........

792.. .......

812. ........

832. ........

862.........

882.. .......

902 .........

932.........

962. ........

982.........

1012...... ..

1042...... ..

1062. .......

1092........

1122........

Water 

year

1918

1919

1921

1934

1935

1936

1937

1938

1939

1940

1941

1943

1945

1947

1948

Date

Dec. 18

Feb. 11

Da c 22

Da c 2

Dec. 3

Oct. 18

(Jage height 

(feet)

t!2.9

tio.o

tlO.7

6.48

9 26

9 48

8 1 *7

12.34

8.00

8.89

Discharge 

(second-feet)

15,800

10,000

11,400

3,960

9,430

9,050

6,670

14,600

7,920

t Present datum.

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

iair. No diversion or regulation.

Revisions. W 962: Drainage area. Revised figures of discharge for high-water periods 

 in" the water years 1918-19, 1921, 1934-39, 1941-42, 1944-46 are given herewith. They

supersede those published in Water-Supply Papers 482, 512, 532, 767, 792, 812, 832,

862, 882, 932, 962, 1012, 1042, and 1062.

Day 

(water year)

1917-18

Dec. 16.....

18.....

29.....

31.....

1918-19

Dec. 4. ....

13. ....

1920-21

Feb. 11.....

1933-34

Dec. 20.....

21. ....

1934-35

Nov. 5.....

Jan. 21.....

22.....

23.....

24.... .

25.....

26.....

1935-36

Jan. 4.....

1936-37

Dec. IB.....

22... ..

Apr. 14.....

Discharge 

(second-feet)

7,620

10,100

9,680

5,360

7,560

7,990

7,840

6,680

10,700

10,500

6,190

10,800

7,380

11,900

9,060

4,100

3,160

3,130

4,890

3,570

Day 

(water year)

1937-38

Oct. 28.....

Nov. 8.....

25. ....

27.....

Dec. 28.....

29.....

30.....

1938-39

Dec. 4.....

5.....

30.....

31. ....

Jan. 1.....

2. ....

3.....

May 28. ....

1940-41

Jan. 17.....

1941-42

Dec. 2. ....

1943-44

Dec. 3.....

1944-45

Jan. 7.....

Feb. 7.....

1945-46

Mov. 14.....

Discharge 

(second-feet)

3,890

3,370

4,000

3,530

8,230

5,990

3,120

2,400

2,610

3,340

3,950

7,380

4,140

2,920

2,320

4,480

5,920

3,930

4,790

7,420

5,050

Revised peak discharges.--1945-44: Bee. 3 (3 a.m.) 6,670 

sec.-ft.j Jan. 17 (2:45 a.m.) 5,500 sec.-ft.

1944-45: Nov. 8 (6:30 to 7:30 a.m.) 5,340 sec.-ft.; Jan. 7 

(9 a.m.) 7,740 sec.-ft.; Feb. 7 (3 p.m.) 14,600 sec.-ft.

1945-46: Oct. 25 (8:30 p.m.) 4,710 sec.-ft.; Nov. 14 (4 a.m.) 

6,330 sec.-ft.; Dec. 28 (8:15 p.m.) 4,710 sec.-ft. 

1946-47: Feb. 13 (6:30 p.m.) 7,380 sec.-ft.

1947-48: Oct. 18 (10:30 p.m.) 7,920 sec.-ft.
36 QUILLAYUTE RIVER BASIN

Revised figures of maximum discharge,of Soleduck River near Fairholm, Wash., 1917-19, 1920-21, 

1933-39, 1940-42, 1943-46

Month

December 1917.. ............

Water year 1917-18. ......

Water year 1918-19. ......

February 1921. .............

Water year 1920-21. ......

Water year 1933-34. ......

Calendar year 1934. ......

Water year 1934-35. ......

Calendar year 1935. ......

Water year 1935-36. ......

Calendar year 1936.......

April 1937. ................

Water year 1936-37. ......

Water year 1937-38. ......

Calendar year 1938. ......

May. .......................

Calendar year 1939. ......

Water year 1940-41. ......

Water year 1941-42. ......

Water year 1943-44. ......

Water year 1944-45. ......

Calendar year 1945. ...... 

Water year 1945-46. ......

Secondfoot-days

252,645

277,152

36,214 

281,724

273,575

243,069

79 952

232,284

182,305

186,207

168,436

°27 492

215,682

184,197

201,658

225,332

176,440

176,266

131,570

203,550

231,572 

248,584

Maximum

10,100

7,990

7,840 

7,840

10,700

10,500

11,900

3,160

4,890

4,890

4 000

8,230

3,950

7,380

4,480

5,920

3,930

7,420

7,420 

5,050

Minimum

59

58

472 

142

75

72

71

84

60

60

469

66

342

62

389

62

69

392

57

449

70

61

198

65

52

289

306

70

60 

60

Mean

2,650

692

759

1,290 

772

750

666

636

498

509

461

591

1,114

505

1 329

617

904

483

483

359

1,041

558

634 

681

Per square

mile

31.5

8.24

9.04

15.4 

9. 19

29.7

8.93

7.93

9.42

7.57

12.7

5.93

12.6

6.06

9.75

5.49

7.04

6.01

6.58

7.35

10.8

5.75

17.1

5.75

4.27

12.4

6.64

12.4

7.55 

8.11

Runoff in 

Inches

36.36

111.86

122.70

16.03 

124.70

34.24

121.13

19.77

107.63

127.84

102.85

14.69

80.73

14.54

82.45

10.88

74.58

17.81

19.85

95.48

15.29

81.54

18.23

8.01

89.36

99.75

12.40

78.11

19.75

88.75

78.02

8.97

73.50

58.24

15.31

12.91

90.13

13.79

102.53 

110.05

Runoff in 

acre-feet

163,000

501,000

550,000

71,600 

55B.OOO

153,400

542,600

88,580

482,100

572,700

460,700

65,810

361,600

65,150

369,300

48,730

334,100

79,810

88,920

451,200

427,800

68,490

365,400

81,690

35,890

400,400

447,000

55,560

350,000

88,490

397,600

349,600

40,200

329,400

261,000

68 , 600

57,840

403 , 700

61,790

459,300 

493,100

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Nov. 25

134

188

247

344

460

601

3.5 

4.0 

4.5 

5.0 

5.6

830

1,160

1,560

2,040

2,730

1.3 

1.5

1.7

105

136

172

216

295

390

26 to Sept. 30

6 505 5

0 695 6

5 1,000 7

0 1,410 8

5 1,900 9

0 2,440 10

3,030

3,670

5,100

6,670

8,300

10,600
QUILLAYUTE RIVER BASIN

Discharge, In second-feet, of Soleduck River near Fairholm, Wash., 

water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

C 

7 

8 

.9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

152 

143 

134 

346 

376

337 

275 

238 

901 

551

830 

622 

448 

373 

581

411 

351 

313 

288 

269

253 

238 

226 

214 

205

208 

238 

1,630 

638 

460 

380

Nov.

341 

310 

288 

269 

253

241 

229 

373 

115 

373

1,060 

1,020 

1,700 

1,520 

922

716 

649 

800 

596 

495

440 

996 

1,020 

955 

2,700

10,500 

7,330 

3,540 

2,280 

1,750

Dec.

6,140 

4,190 

2,160 

1,700 

1,700

1,360 

1,110 

965 

900 

780

722 

670 

635 

635 

722

670 

635 

586 

536 

518

501 

645 

1,070 

965 

930

840 

3,540 

6,830 

3,940 

1,950 

1,230

Jan.

1,000 

810 

695 

645 

590

550 

514 

473 

453 

453

418 

386 

370 

360 

350

335 

330 

315 

500 

1,500

3,100 

2,000 

1,230 

900 

740

640 

580 

530 

470 

440 

405

Month

Octc 

Hove 

Qece

Ca

Janu 

Pebi 

Hare 

Apr! 

May 

June 

July 

Augu 

Sept

WE

mber ......................

lendar year 194 

&ry

ember .....................

ter year 1949-50 ..........

Feb.

390 

380 

370 

390 

450

518 

493 

541 

505 

449

429 

485 

965 

840 

2,560

2,160 

1,230 

1,000 

930 

780

750 

930 

1,000 

1,700 

3,260

4,500 

1,850 

1,190

Secondfoot-days

12,629 

44,081 

49,775

262,621

22,082 

31,045 

26,982 

24,644 

23,424 

34,975 

20,412 

9,241 

4,352

303,642

Mar.

930 

840 

2 ,'920 

2,850 

},950

1,410 

1,070 

900 

780 

670

600 

550 

514 

485 

473

582 

780 

870 

965 

810

695 

670 

610 

590 

550

528 

546 

501 

457 

445 

441

Maximum

1,630 

10,500 

6,830

10,500

3,100 

4,500 

2,920 

2,600 

1,280 

1,650 

1,000 

750 

224

3,0,500

Apr.

582 

577 

532 

493 

481

489 

465 

441 

418 

404

577 

1,360 

1,070 

870 

1,850

2,600 

2,110 

1,230 

965 

965

930 

840 

722 

635 

582

536 

505 

477 

465 

473

Bay

505 

514 

497 

477 

493

481 

469 

469 

489 

546

780 

1,150 

1,110 

1,000 

930

870 

810 

722 

670 

645

810 

930 

780 

695 

722

930 

1,280 

1,040 

930 

870 

810

Minimum

134 

229 

501

104

315 

370 

441 

404 

469 

780 

397 

178 

117

117

June

965 

1,040 

1,190 

1,360 

1,190

965 

870 

965 

1,000 

1,070

1,280 

1,360 

1,320 

1,280 

1,230

1,500 

1,650 

1-.500 

1,500 

1,460

1,190 

1,150 

1,190 

930 

840

780 

900 

1,040

1,150 

1,110

Mean

407" 

1,469 

1,606

720

712 

1,109 

870 

821 

756 

1,166 

658 

298 

145

832

July

1,000 

900 

930 

1,000 

930

900 

780 

840 

840 

722

640 

590 

645 

640 

600

577 

586 

600 

625 

554

536 

582 

590 

568

528

493 

469 

505 

441 

404 

397

Per 

square 

mile

4.85 

17.5 

19.1

8.57

8.48 

13.2 

10.4 

9.77 

9.00 

13.9 

7.83 

3.55 

1.73

9.90

Aug.

408 

404 

352 

322 

313

334 

325 

295 

290

287

279 

276 

268 

367 

750

383 

319 

290 

276 

260

252 

244 

265 

260 

241

218 

214 

200 

189 

182 

178

Sept.

174 

178 

176 

170 

162

155 

151 

148 

144 

141

139 

136 

134 

134 

131

130 

128

125 

122 

122

120 

118 

117 

131 

178

224 

166 

144 

131 

123

Runoff

Inches

5.59 

19.52 

22.04

116.28

9.78 

13.74 

11.95 

10.91 

10.37 

15.48 

9.04 

4.09 

1.93

134.44

Acre-feat

25,050 

87,430 

98,730

520,900

43,800 

61,580 

53,520 

48,880 

46,460 

69,370 

40,490 

18,330 

8,630

602,300

Peak discharge (base, 6,000 sec. -ft . ) . --Nov. 26 (8:30 p.m.) 23,500 sec. -ft.; DeT. 1 (6 p.m.) 9,150

sec.-ft.; Dec. 28 (Z p.m.) 8,980 sec.-ft.; Feb. 26 (12:30 a.m.) 8,130 sec.-ft.

Note. No gage-height record Jan. 13-21, Jan. 25 to Feb. 5; discharge computed on basis of rec 

for nearby streams.
38 ELWHA RIVER BASIN

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

Location . --Water-stage recorder, lat. 48°03'20", long. 123°34'55", in NEiNW^- sec. 33, T. 

3D JN . , R. 7 W. , at site of McDonald Bridge (now removed) , half a mile upstream from 

Little River, 7 miles upstream from mouth, and 8 miles southwest of Port Angeles, Datura of gage is 200.00 feet above mean sea level, datura of 1929.

Drainage area. --262 square miles.

Records available. --October 1897 to December 1901, October 1918 to September 1950.

Average discharge. 36 years, 1,436 second-feet (adjusted for storage since April 1927).

Extremes . --Maximum discharge during year, 30,000 second-feet Nov. 26 (gage height, 84.20 

reet) , from rating curve extended above 12,000 second-feet on basis of computation of 

peak flow over dam 4 milss upstream; minimum, 122 second-feet Sept. 24 (gage height, 

7.38 feet); minimum daily, 382 second-feet Sept. 10.

1897-1901, 1918-50: Maximum discharge, that of Nov. 26, 1949; minimum daily, 10 

second-feet Oct. 3, 1938.

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

Flow regulated since 1927 by Lake Mills (usable capacity, 38,650 acre-feet). No diversion.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

653 

588 

603 

550 

697

638 

546 

618 

468 

770

597 

701 

850 

700 

706

546 

820 

945 

758 

762

722 

934 

664 

634 

731

772 

780 

908 

1,170 

986 

1,050

Nov.

1,030 

978 

902 

870 

8OO

658 

678 

526 

687 

878

864 

870 

1,850 

2,960 

1,780

1,380 

1,610 

2,240 

1,680 

1,200

1,410 

2,750 

2,620 

2,640 

5,160

11,700 

14,200 

6,470 

4,630 

3,790

Month

Ooto 

Nove 

Dece

Cal

Janu 

Febr 

Marc 

Apri

Uav

June 

July 

Augu 

Sept

Wat

endar year 1949 

ary

h...... .........

er year 1949-50

Dec.

6,900 

6,740 

4,630 

3,930 

3,530

2,940 

2,590

2,020 

2,190 

1,750

1,320 

1,560 

1,410 

1,310 

1,310

1,310 

1,310 

785 

835

911

854 

1,280 

1,800 

1,020 

838

1,150 

3,320 

7,100 

6,290 

4,190 

3,230

Jan.

2,320 

2,060 

1,970 

1,810 

1,670

1,580 

1,520 

1,240 

1,530 

1,440

1,330 

1,250 

956 

796 

922

1,150 

1,070 

1,030 

880 

2,050

4,360 

2,830 

1,790 

1,360 

1,360

1,650 

1,460 

1,380 

1,090 

1,310 

1,160

Feb.

870 

963 

1,010 

1,180 

1,050

1,260 

1,360 

1,380 

1,310 

1,140

1,040 815' 

1,180 

1,280 

2,520

2,280 

2,140 

2,060 

1,530 

1,530

1,400 

1,600 

1,480 

1,940 

2,970

6,800 

3,780 

3,080

Mar.

2,280 

2,270 

3,700 

4,700 

3,760

2,830 

2,570 

2,060 

1,850 

1,850

1,820 

1,470 

1,590 

1,450 

1,440

1,390 

1,360 

1,400 

1,620 

1,480

1,420 

1,390 

1,390 

1,390 

1,390

1,080 

1,390 

1,380 

1,360 

1,310 

1,020

Observed

Discharge in 

second-feet

Maximum

1,170 

14,200 

7,100

14,200

4,360 

6,800 

4,700 

8,980 

3,380 

5,500 

4,300 

2,000 

1,150

14,200

Minimum

468 

526 

785

171

796 

815 

1,020 

766 

767 

2,920 

1,810 

1,030 

382

382

Mean

738 

2,660 

2,592

1,686

1,559 

1,820 

1,852 

1,474 

2,020 

4,096 

2,917 

1,405 

660

1,981

Runoff 

in 

acre-feet

45,36C 

158,300 

159,400

1,220,OOC

95,850 

101,100 

113,900 

87,710 

124,200 

243,700 

179,300 

86,400 

39,280

1', 434, 000

Apr.

1,050 

907 

1,130 

1,060 

1,040

1,140 

1,080 

949 

766 

1,480

1,120 

1,280 

1,310 

1,950 

1,170

1,690 

2,980 

2,440 

2,730 

2,300

,900 

,440 

,260 

,860 

,190

,460 

,370 

,220 

1,100 

850

May

1,140 

1,220 

1,150 

1,120 

1,060

1,050 

767 

1,050 

1,070 

1,090

1,240 

2,460 

3,100 

2,840 

2,760

2,490 

2,400 

2,140 

2,000 

1,840

2,230 

2,650 

2,380 

2,130 

2,230

2,530 

3,380 

3,130 

2,790 

2,660 

2,530

contents in 

Lake Mills 

(acre-feet)t

4-1,010 

4-2,380 

-50

4-980

-770 

4-730 

-2,330 

-210 

4-2 , 630 

-350 

+350 

-2,210 

4-710

4-1,890

June

2,970 

3,290 

3,500 

4,100 

4,220

3,450 

2,920 

3,110 

3,300 

3,420

3,690 

4,400 

4,710 

4,700 

4,500

4,780 

5,490 

5,500 

5,370 

5,360

5,010 

4,430 

4,250 

3,530 

4,000

3,100 

3,170 

3,900 

4,300 

4,420

July

4,280 

3,810 

3,770 

4,110 

4,300

4,110 

3,750 

3,320 

3,630 

2,950

2,640 

2,420 

2,540 

2,860 

2,650

2,620 

2,460 

2,590 

2,810 

2,500

2,390 

2,850 

2,750 

2,830 

2,720

2,580 

2,330 

2,150 

2,000 

1,810 

1,890

Aug.

1,790 

1,890 

1,730 

1,500 

1,400

1,600 

1,490 

1,320 

1,320 

1,340

al,380 

al,340 

al,340 

al,340 

a?, 000

1,760 

1,560 

1,400 

1,380 

1,320

1,360 

1,320 

1,300 

1,260 

1,210

1,200 

1,030 

1,140 

1,180 

1,180 

1,180

Sept.

1,140 

1,150 

818 

554 

756

736 

817 

740 

615 

382

594 

607 

664 

541 

540

550 

395 

654 

655 

620

534 

578 

640 

429 

624

931 

698 

644 

668 

528

Adjusted for change in contents

Runoff 

in 

acre-feet

46,370 

160,700 

159,400

1,222,000

95,080 

101,800 

111,600 

87,500 

126,800 

243,400 

179,600 

84,190 

39,990

1,436,000

Discharge in 

second-feet

Per 

Mean square 

mile

754 2.8£ 

2,701 10.3 

2,592 9.8£

1,687 6.44

1,546 5.9C 

1,833 7.0C 

1,815 6.93 

1,470 5.61 

2,062 7.87 

4,090 15.6 

2,921 11.1 

1,369 5.23 

672 2.56

1,984 7.57

Runoff

inches

3.32 

11.50 

11.41

87.43

6.80 

7.29 

7.99 

6.26 

9.07 

17.42 

12.85 

6.03 

2.86

102.80

t Data furnished by Crown Zellerbach Corp. 

a No gage-height record; discharge computed on basis of records for Dungeness River near Sequim and 

Lake Mills at Qlines Canyon, near Port Angeles.
DUNGENESS RIVER BASIN 39

Dungeness River near Sequim, Wash.

Location. Water-stage recorder, lat. 48°00'40", long. 123°07'50", in SW^SEsj sec. 12, T. 

ay N., R. 4 W., three-quarters of a mile upstream from Canyon Creek, 4j miles southwest of Sequim, and llf miles upstream from mouth.

Drainage area.--156 square miles.

Records available.--June 1937 to September 1950. July 1897 to July 1898 at site about 2 

miles downstream; June 1923 to September 1930 at site half a mile downstream.

Average discharge.--20 years (1923-30, 1937-50), 340 second-feet.

Extreme s. - -Maximum discharge during year, 6,820 second-feet Nov. 27 (gage height, 7.3 feet), 

rrom rating curve extended above 2,000 second-feet on basis of slope-area determination 

of peak flow; minimum, 104 second-feet Oct. 19.

1897-98, 1923-30, 1937-50: Maximum discharge, that of Nov. 27, 1949; minimum observed, 77 second-feet Sept. 10, 1928.

Remarks. Records good except those for periods of ice effect, which are poor. No diversion or regulation.

Rating tables, water year 1949-50, except periods of Ice effect 

(gage height, In feet, and discharge, in second-feet)

Oct. 1 to No Nov. 27 to Sept. 30

3.0 

3.3 

3.6 

4.0

111

209

343

585

4.5 

5.0 

5.5

1,020

1,630

2,380

Z.8 

3.0 

3.3 

3.6 

4.0

150

210

330

487

764

4.5 1,230

5.0 1,860

5.5 2,640

6.0 3,600

6.5 4,710

Discharge, in second feet, water year October 1949 to September 1S50

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

128 

117 

114 

137 

147

134 

126 

120 

173 

180

166 

150 

140 

128 

137

128 

120 

114 

111 

114

114 

111 

108 

108 

108

114 

120 

375 

267 

202 

177

Nov.

156 

147 

140 

128 

123

114 

111 

117 

137 

126

209 

254 

333 

517 

354

309 

4O8 

699 

517 

385

318 

486 

731 

607 

1,020

2,350 

3,800 

1,560 

1,010 

734

Dec.

1,080 

1,550 

957 

749 

659

569 

*518 

470 

425 

378

340 

330 

317 

308 

312

290 

290 

282 

254 

254

250 

246 

364 

383 

330

295 

530 

1,240 

1,150 

749 

543

Jan.

436 

373 

344 

326 

299

286 

278 

258 

246 

250

235 

221 

b200 

b!85 

b200

b215 

b240 

b290 

b350 

506

659 

589 

487 

388 

344

b300 

b265 

b245 

b230 

b225 

b2EO

Month ff«

Octo 

Nove 

Dece

Ca

Jami 

Febi 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 ......

ary

Feb.

b215 

b210 

*b210 

b210 

b210

b210 

214 

254 

228 

214

197 

194 

217 

221

441

549 

414 

373 

368 

340

308 

295 

304 

349 

595

*1,720 

930 

630

ond-

-days

4,488 

17,900 

16,412

150,727

ember .....................

9,690 

10,620 

12,650 

9,615 

18,531 

33,078 

25,212 

12,764 

6,030

ter year 1949-50 .......... 176,990

Peak discharge (base, 1,000 sec. -ft. ) .--N

6,820 sec. -ft.; Dec. 1 (10:30 p.m.) 2,310 s 

2,340 sec. -ft.; Mar. 3 (10 p.m.) 1,220 sec. 

1,590 sec. -ft.; June 30 (2:30 a.m.) 1,330 s 

* Winter discharge measurement made on th 

b Stage-discharge relation affected by io

Mar.

518 

447 

659 

1,040 

870

726 

603 

530 

470 

425

378 

349 

330 

317 

299

290 

330 

335 

349 

335

321 

308 

295 

299 

290

282 

274 

254 

246 

242 

239

Maximum

37E 

3.80C 

1.55C

3.80C

65S 

1.72C 

1,04C 

47C 95' 

1.50C 

1,13C 

696 

29E

3.80C

Apr.

246 

246 

239 

228 

246

258 

254 

246 

242 

232

262 

453 

441 

378 

359

383 

436 

383 

359 

436

470 

430 

368 

330 

304

290 

286 

270 

262 

278

May

290 

295 

286 

282 

270

258 

254 

270 

317 

354

493 

756 

913 

870 

813

772 

696 

609 

556 

556

711 

862 

764 

696 

703

804 

957 

870 

772 

741 

741

Minimum

108 

111 

246

96

185 

194 

239 

228 

254 

813 

549 

270 

148

108

June

829 

888 

939 

1,060 

1,14O

948 

837 

813 

854 

896

984 

1,200 

1,320 

,310 

,250

,390 

,500 

,490 

,450 

,470

,340

,180 

1,050 

896 

813

829 

922 

1,060 

1,190 

1,230

Mean

145 

597 

529

413

313 

379 

408 

320 

598 

1,103 

813 

412 

201

485

July

1,130 

1,030 

1,010

l',070

1,030 

939 

939 

1,000 

804

741 

764 

804 

837 

813

780 

764 

772 

772 

718

696 

772 

772 

772 

764

681

556 

549 

549

Per 

square 

mile

0.929 

3.83 

3.39

2.65

2.01 

2.43 

2.62 

2.05 

3.83 

7.07 

5.21 

2.64 

1.29

3.11

Aug.

556 

569 

499 

436 

4ZO

436 

447 

420 

394 

388

394 

*94 

388 

404 

696

569 

458 

409 

388 

378

383 

383 

388 

383 

364

330 

340 

312 

286 

282 

270

Sept.

286 

295 

290 

286 

246

23Z 

217 

207 

200 

194

191 

188 

184 

184 

188

181 

178 

175 

170 

167

167 

170 

172 

194 

2E1

210 

178 

161 

150 

148

Runoff

Inches

1.07 

4.27 

3.91

35.94

2.31 

2.53 

3.02 

2.29 

4.42 

7.89 

6.01 

3.04 

1.44

42.20

ov. 22 (8:30 p.m.) 1,230 sec. -ft.; Nov. 27 (1 

ec.-ft.; Dec. 28 (5 p.m.) 1,750 sec.-f-..; Peb 

-ft.; June 5 (2:30 a.m.) 1,220 sec. -ft.; June 

ec.-ft. 

is day. 

e.

Acre-feet

8,900 

35,500 

32,550

299,000

19,220 

21,060 

25,090 

19,070 

36,760 

65,610 

50,010 

25,320 

11,960

351,000

a.m. ) 

. 26 (3 a.m.) 

18 (1 a.m.)

238382 O - 53 - 4
40 DUCKABUSH RIVER BASIN

Duckabush River near Brinnon, Wash.

Location. Water-stage recorder, lat. 47°41'00", long. 123 0 00'40", in SW^SW^ sec. I, T. 

25 N., R. 3 W., 4} miles upstream from mouth and 5 miles west of Brinnon. Datum of 

gage is 241.49 feet above mean sea level, datum of 1929.

Drainage area.--66 square miles.

Records available.--August 1910 to December 1911 (published as Duckabush River near DuckaBush), June 1938 to September 1950.

Average discharge.--12 years (1938-50), 373 second-feet.

Extremes.--Maximum discharge during year, 8,960 second-feet Nov. 26 (gage height, 10.06 

feet), from rating curve extended above 1,800 second-feet on basis of slope-area determination of peak flow; minimum, 78 second-feet Oct. 26 (gage height, 1.54 feet).

1910-11, 1938-50: Maximum discharge, that of Nov. 26, 1949; minimum, 45 secondfeet Oct. 26, 28, 29, 1942 (gage height, 1.36 feet).

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

diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. 1 Nov.

89 

86 

83

122 

128

109 

1C2 

96

191 

161

196 

170 

136 

122 

134

117 

108 

101 

99 

92

89

86 

84 

81 

81

80 

92 

494 

245 

177 

150

132 

124 

119 

113 

108

104 

101 

?04 

437 

351

890 

1,150 

1,110 

995 

628

507 

512 

618 

503 

399

355 

1,040 

890 

890 

1,420

3,870 

3,710 

1,560 

1,020 

790

Dec.

1,600 

1,700 

990 

744 

751

611 

526 

451 

407 

358

325 

298 

280 

273 

277

260 

253 

231 

216 

210

207 

204 

349 

358 

295

280 

842 

2,040 

1,560 

955 

635

Jan.

483 

393 

337 

305 

277

263 

247 

231 

219 

222

207 

190 

185 

168 

166

163 

155 

148 

168 

764

1,440 

1,100 

683 

472 

371

333

287 

256 

234 

219 

202

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 1949 

ary

ember .......... ..........

ter year 1949-50 ..........

Feb.

188 

185 

177 

188 

204

329 

260 

280 

247 

222

204 

196 

302 

329 

1,440

1,200 

701 

542 

526 

441

380 

358 

375 

559 

1,280

2,360 

1,130 

719

Secondfoot-days

4,101 

24,650 

18,48R

146,253

10,888 

15,322 

14,944 

11,931 

17,654 

27,103 

18,362 

8,267 

3,482

175,190

Mar

548 

483 

888 

1,320 

1,240

888 

665 

548 

462 

398

353

317

291 

277 

266

280 

467 

520 

510 

457

403

375 

375 

472 

398

341 

325 

298 

273 

256 

250

Maximum

494 

3,870 

2,040

3,870

1,440 

2,360 

1,320 

1,100 

1,020 

1,240 

888 

550 

160

3,870

Apr.

280 

280 

263 

250 

256

287 

263 

247 

240 

240

407 

1,100 

689 

498 

472

635 

725 

515 

446 

515

548 

457 

380 

333 

291

277 

260 

247 

250 

280

May

337 

329 

291 

277 

263

253 

243 

250 

298 

375

565 

920 

1,020 

955 

855

758 

671 

548 

472 

467

635 

770 

623 

554 

599

758 

888 

751 

647 

641 

641

Minimum

80 

101 

204

76

148 

177 

250 

240 

243 

611 

362 

158 

85

80

June

770 

829 

920 

1,020 

955

732 

635 

677 

732 

803

920 

1,100 

1,020 

990 

955

1,130 

1,240 

1,200 

1,170 

1,170

1,020 

920 

803 

665 

611

611 

707 

888 

955 

955

Mean

132 

822 

596

401

351 

547 

482 

398 

569 

903 

592 

267 

116

480

July

888 

822 

836 

888 

855

790 

695 

764 629" 

532

510 

510 

571 

588 

554

515 

526 

559 

559 

510

515 

559 

571 

565 

537

488 

451 

457 

389 

362 

367

Per 

square

mile

2.00 

12.5 

9.03

6.08

5.32 

8.29 

7.30 

6.03 

8.62 

13.7 

8.97 

4.05 

1.76

7.27

Aug.

375 

375 

317 

280 

270

273 

270 

260 

253 

250

253 

250 

240 

266 

a550

431 

321 

277 

263 

253

253

243 

234 

231 

216

196 

193 

179 

171 

166 

158

Sept.

158 

160 

160 

152 

140

130 

123 

118 

118 

118

114 

114 

112 

109 

107

103 

101 

98 

96 

96

94

92 

90 

107 

142

142 

114 

99 

90 

85

Runoff

Inchos

2.31 

13.89 

10.42

82.43

6.14 

8.63 

8.42 

6.72 

9.95 

15.27 

10.35 

4.66 

1.96

98.72

Peak discharge (base, 2,500 sec. -ft.). Nov. 26 (11 p.m.) 8,960 sec. -ft. ; Dec. 1 (9:30

Acre-feet

8,130 

48,890 

36,670

290,100

21,600 

30,390 

29,640 

23,660 

35,020 

53,760 

36,420 

16,400 

6,910

347,500

p.m.) 3,890

sec.-ft. ; Feb. 26 (2:3O a.m.J 3,bOO sec.-ft.

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

Note.--Shifting-control method used Oct. 1 to Nov. 25, Feb. 14 to Apr. 16, July 15 to Sept. 29.
SKOKOMISH RIVER BASIN 41

North Fork Skokomish River below Staircase Rapids, near Hoodsport, Wash.

Location.--Water-stage recorder, lat. 47°30'55", long. 123°19'45", in NW£ sec. 4, T. 23 

IN . , K. 5 W., three-quarters of a mile upstream from Lake Cushman, 2 miles upstream 

from Dry Creek, and ll| miles northwest of Hoodsport.

Drainage area. 60 square miles.

Records available. July 1924 to September 1950.

Average discharge. 26 years, 464 second-feet.

Extremes. Maximum discharge during year, 24,200 second-feet Nov. 26 (gage height, 12,20 

reet. from high-water mark), from rating curve extended above 1,500 second-feet on basis 

of slope-area determination of peak flow; minimum, 84 second-feet Oct. 3

1924-50: Maximum discharge, that of Nov. 26, 1949; minimum recorded, 16 secondfeet Sept. 23, 1930 (gage height, 1.12 feet).

Remarks. Records good. No diversion or regulation.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Nov. 25 Nov. 26 to Sept. 30

1.8 82 2.9 381 4.5 1,390 1.7 82 2.9 488 5 

2.0 117 3.2 510 5.0 1,820 1.9 120 3.2 647 6 

2.3 186 3.6 730 5.5 2,310 2.1 168 3.6 890 7 

2.6 273 4.0 1,000 2.5 230 4.0 1,190 8 

2.S 347 4.5 1,640 9

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

94 

87 

85

166 

174

136 

115 

103 

266 

191

270 

205 

164 

150 

161

134 

125 

117 

110 

104

101 

97 

94 

92 

89

92 

136 

806 

283

208 

176

Nov.

156 

140 

136 

128

119

115 

110 

247 

461 

389

1,420 

1,390 

1,390 

1,150 

688

565 

565 

605 

492 

414

397 

1,360 

965 

1,040 

1,940

9,950 

5,280 

2,190 

1,450 

1,190

Dec.

3,550 

2,480

1,360 

1,070 

1,030

858 

757 

681 

625 

544

503 

478 

444 

434 

444

401 

397 

360 

334 

318

305 

347 

508 

478 

459

430 

1,410 

3,490 

2,250 

1,190 

858

Jan

687 

576 

508 

464 

425

397

370 

343

326 

322

289

266 

252 

234 

227

217 

207 

200 

289 

1,550

2,020 

1,270 

858 

647 

539

478 

420 

383 

343 

322 

293

Feb.

27O 

259 

252 

255

266

309 

270 

270 

234 

223

214 

220 

309 

360 

1,570

1,320 

757 

636 

598 

524

473 

468 

488 

716 

1,740

2,630 

1,150 

825

u««tv. SecondMonth foot-days

Octc 

Move 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

WE

her .......................

lendar year 194;

ember .....................

5,131 

36,442 

28,793

96,269

15,722 

17,606 

19,226 

16,101 

23,525 

32,960 

20,498 

8,857 

3,701

ter year J949-50 .......... 228,562

Mar.

670 

636 

1,540 

1,740 

1,400

1,070 

825 

698 

603 

544

488 

439 

454 

383

378

473 

734 

698

636 

571

493 

464 

444 

449 

411

378

343 

309 

293 

297

Maximum

806 

9,950 

3,550

9,950

E.020 

2,630 

1,740 

1,150 

1,270 

1,540 

1,070 

858 

194

9,950

Apr.

334 

326 

305 

293 

305

330 

309 

297 

282 

286

425 

960 

763 

636 

890

1,150 

1,150

806 

687

710

.716 

647 

550 

488 

444

420 

397 

383 

392 

420

May

488

483 

444 

434 

416

397 

388 

416 

488 

592

825 

1,190 

1,270 

1,190 

1,110

960 

890 

757 

676 

670

800 

858 

757 

728

806

995 

1,070 

925 

825 

819 

858

Minimum

85

110 

305

76

200 

214 

293 

282 

388 

788 

356 

168 

89

85

Peak discharge (base, 3,000 sec.-ft . ) .--Nov . 26 (7 p.m.) ?4,J

6,540 sec. -ft.; Dec. 28 (12:30 p.m., 1:30 p m.) 4,740 sec. -ft.,

June

995

1,070 

1,150 

1,270 

1,150

890 

819 

890 

925 

1,030

1,150 

1,270 

1,190 

1,110 

1,110

1,360 

1,540

1,400 

1,360 

1,360

1,190 

1,070 

995 

858 

800

788 

890

1,030 

1,150 

1,150^

Mean

166 

1,215 

929

538

507 

629 

620 

557 

759 

1,099 

661 

286 

123

626

July

1,07J 

995 

993 

1,030 

995

925 

825 

825 

775 

653

603 

603 

664 

653 

620

587 

59? 

650 

620 

533

560 

566 

565 

550 

529

473 

444

483 

392 

365

355

Per 

square 

mile

2.77 

20.2 

15.5

8.97

8.45 

10.5 

10.3 

8.95 

12.6 

18.3 

11.0 

4.77 

2.05

10.4

00 sec.-ft.; Dec. 

Feb. 26 (1 a.m.)

.0 2,190 

.0 3,570 

.0 5,420 

.0 7,800 

.0 10,600

Aug.

G7O 

365 

309 

274

270 

255 

234

227

227 

227 

317 

477 

858

449

352 

309 

278 

270

262 

248

266 

262 

227

210 

200 

191 

185 

174 

168

Sept.

168 

168 

165 

152 

142

138 

131 

124 

122 

118

118

116 

114 

112 

108

104 

102 

98 

96 

95

95 

91 

91 

133 

194

191 

124

106 

96 

89

Runoff

Inches

3.18 

22.59 

17.85

121.66

9.75 

10.91 

11.92 

9.98 

14.58 

20.43 

12.71 

5.49 

2.29

141.68

1 (7:30 

4,640 s

Acre feet

10,180 

72,280 

57,110

389,300

31,180

34,920 

38,130 

31,940

46,660 

65,380 

40,660 

17,570 

7,34C

453,400

p.m.) 

;c.-ft.
SKOKOMISH RIVER BASIN

North Pork Skokomish River near Potlatch, Wash.

Location. Water-stage recorder, lat. 47°20', long. 123°14', in NE^NW£ sec. 7, T. 21 N., 

K. 4 W., on left bank, three-quarters of a mile upstream from mouth and 6 miles southwest of Potlatch.

Records available. March 1944 to September 1950 (fragmentary).

Extremes. Maximum discharge during year, 4,800 second-feet about Nov. 27 (gage height, 

a.bb feet, from high-water mark),from rating curve extended above 2,400 second-feet on 

basis of slope-area determination at peak flow; minimum not determined.

1944-50: Maximum discharge, that of Nov. 27, 1949; minimum recorded, 1.6 secondfeet July 23, 1949 (gage height, 2.15 feet).

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

in normal years practically entire flow of river is diverted at Cushman Dan No. 2.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

Z 

3

4 

5

6

7 

8 

9 

10

11 

IE 

13 

14 

15

16 

17 

18 

19 

HO

HI 

22 

23 

24 

25

H6 

H7 

H8 

H9 

30 

31

Oct.

8.0 

7.5 

7.5 

9.8 

11

8.0 

8.0 

8.0 

15 

13.5

14 

11.5 

9.2

7.5 

6.6

6.6 

6.6 

6.2 

6.2 

6.2

6.2 

6.2 

6.6 

6.2 

6.2

6.2 

9.2 

72 

42 

30 

26

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

Nov.

21 

20 

20 

20 

20

20 

HO. 

32 

51 

58

414 

378 

319 

274 

170

140 

119 

102 

85 

71

66 

104 

130 

138

267

2,220

Dec.

t562

Jan. Feb.

t83 

t518

Month

her. .....------.----.--------....-.-.-..

mber i_g

lendar year

ter year .......................

Mar.

tl,160

1,360 

1,760 

1,120

885 

602 

632 

374 

285

848 

253 

206 

176 

153 

69

Apr.

74 

57 

61 

57 

57

54 

51 

54 

50 

a47

a46 

51 

87 

88 

232

292 

307 

239 

a200 

a!70

a!40 

a!35 

a!30 

a!20 

aloO

a90 

h76 

h68

a56 

a56

Secondfoot-days

393 7 

5,279

-

8,723 

3,245 

1,187 

545 

305.9 

237.1 

250.6

-

May

h61 

h57 

h55 

h54 

h51

a48 

a46 

h44 

h42 

h40

40 

40 

38 

37 

37

36 

40 

38 

34 

33

32 

32 

31 

29 

29

29 

28 

27 

28 

26 

25

Maximum

72 

2,220

-

1,760 

307 

61 

25 

13 

15.5 

15.5

-

June

25 

24 

23 

22 

22

23 

23 

22 

21 

20

20 

20 

20 

19 

18

18 

18

16.5 

16.5 

15.5

15.5 

15 

15.5 

15.5 

14

13.5 

13 

13 

12 

11.5

July

11 

11 

10.5 

10.5 

10.5

9.8 

9.8

13 

13 

12

11.5

11 

10.5 

10.5 

10.5

10.5 

9.8 

9.2 

9.2 

8.6

8.6 

8.0 

8.0 

8.0 

8.0

8.0 

8.6 

11 

9.2 

8.6 

7.5

Minimum

6.2 

20

-

69 

46 

25 

11.5

7.5 

5.7 

6.6

-

Aug.

7.5 

7.5 

7.1 

7.1 

6.6

6.6 

6.6 

6.E 

6.2

5.7

6.2 

6.2 

6.2

7.5 

15.5

11 

9.2

7.5 

7.5 

7.1

7.1 

7.1 

9.8 

11 

8.6

7.5 

7.1 

7.1 

7.1 

7.1 

6.6

Mean

12.7 

203

-

623 

108 

38.3 

18.2 

9.87 

7.65 

8.35

-

Sept.

6.6 

6.6 

6.6 

6.6 

6.6

9.2 

9.2 

8.0 

8.0 

7.1

7.1 

7.1 

7.1 

7.1 

7.1

7.1 

7.1 

7.1 

7.1 

7.1

7.1 

6.6 

7.1 

13.5 

15.5

15 

12 

10.5 

9.2 

8.6

Runoff In 

acre-feet

781 

10,470

-

17,300 

6,440 

2,350 

1,080 

607 

470 

497

-

t Result of discharge measurement.

a Ho gage-height record; discharge computed on basis of records tor nearby stations.

h Computed from graph based on gage readings.
SKOKOMISH RIVER BASIN 43

Skokomish River near Potlatch, Wash.

Location.--Water-stage recorder, lat. 47°19'00" ) long. 123°11'05", in NWiNW^ sec. 15, T. 

2nT7, R. 4 W., half a mile upstream from U. S. Highway 101, 2.8 miles downstream from 

confluence of North and South Porks, 4.7 miles southwest of Potlatch, and 5.5 miles 

upstream from mouth.

Drainage area.--837 square miles.

Records available.--July 1943 to September 1950.

Extremes. Maximum discharge during year, 19,300 second-feet Nov. 27 (gage height, 14.51 

reet), from rating curve extended above 9,200 second-feet; minimum, 145 second-feet 

Sept. 16.

1943-50: Maximum discharge, that of Nov. 27, 1949; minimum, 125 second-feet Sept. 

14-17, 1944 (gage height, -0.01 foot, former datum).

Remarks.--Records good except those for periods of shifting control, and those above 

lU.uOO or below 200 second-feet, which are fair, In normal years practically entire 

flow of North Fork is diverted at dam No. Z and returned to sea through Cushman power 

plant No. 2.

Rating table, water year 1949-50, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Feb. 26 Feb. 27 to Sept. 30

3.3 295 5.0 1,620 9.0 7,110 3.3 145 4.5 890 7 

3.4 350 5.5 2,170 10.0 8,830 3.5 235 5.0 1,360 8 

3.7 525 6.0 2,770 11.0 10,700 3.8 40O 5.5 1,89O 9. 

4.0 725 7.0 4,080 12.0 12,700 4.1 590 6.0 2,470 10. 

4.5 1,120 8.0 5,530 13.0 15,100

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

295 

290 

285

317 

388

383 

366 

344 

453 

603

683 

683 

564 

501 

459

441 

417 

400 

388 

378

366 

350 

344 

334 

334

334

339

1,410 

1,040 

711 

558

Nov.

471 

429 

400 

378 

344

328 

312 

435 

1,210 

1,210

4,770 

4,500 

3,800 

3,540 

 2,290

1,620 

1,310 

1,110 

950 

840

746 

1,280 

1,900 

1,780 

3,410

9,400 

15,900 

9,190 

5,850 

4,360

Dec.

7,480 

10,500 

5,830 

4,220 

3,280

2,410 

2,470 

1,730 

1,950 

1,6EO

1,680 

1,560 

1,410 

1,410 

1,360

1,360 

966 

795 

704

655

629 

683 

1,580 

2,060 

1,950

1,840 

7,010 

12,800 

8,300 

4,640 

3,670

Jan.

3,220 

2,770 

2,470 

2,290 

2,230

2,060 

1,950 

1,510 

1,260 

1,100

974 

910 

862 

788 

746

718 

676 

642 

767 

3,690

7,110 

5,680 

3,540 

2,410 

1,950

1,620 

1,360 

1,120 

998 

934 

848

Feb.

810 

746 

746 

878 

942

1,160 

1,210 

1,460 

1,260 

*1,260

1,260 

1,510 

2,710 

2,530 

5,930

4,800 

3,150 

2,650 

2,530 

2,230

2,230 

2,470 

2,710 

3,800 

5,180

10,700 

4,450 

2,830

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Maw

June 

July 

Augu 

Sept

Ha

mber

lendar year 1949 

ary

ter year 1949-50 .......................

Peak discharge (base, 8,400 sec. -ft.) .--Ho

sec. -ft. j Dec. 28 (2:30 p.m.) 15.300 sec. -ft 

14,300 sec. -ft.} Mar. 3 (12 p.m.) 13,200 sec 

Note. Shifting-control method used Oct. 1

Mar.

2,230 

2,110 

6,100 

9,350 

7,340

5,350 

4,030 

3,220 

3,090 

2,830

2,710 

2,650 

2,410 

2,350 

2,350

3,090 

4,310 

4,030 

4,450 

3,480

2,900 

2,590 

2,410 

2,290 

2,110

2,410 

2,000 

1,840 

1,620 

1,460 

1,360

Apr.

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1 

2,

3,

4, 

2,

1, 

1,

1, 

1, 

1,

1,

1,

1 

1, 

1, 

1, 

1,

Secondfoot-days

14,758 

84,063 

98,552

450,695

59,203 

74,142 

100,470 

48,730 

32,513 

25,117 

14,324 

9,696 

6,389

567,957

510 

510 

410 

310 

250

260 

220 

140 

070 

030

090 

890 

890 

620 

960

610 

170 

530 

940 

840

780 

560 

410 

310 

150

100 

090 

040 

020 

020

May

1,100 

1,120 

1,050 

1,010 

980

944 

899 

962 

908 

926

1,060 

1,360 

1,410 

1,360 

1,260

1,170 

1,140 

1,060 

989 

935

962 

1,010 

953 

917 

935

1,030 

1,160 

1,080 

962 

944 

917

Maximum

1,410 

15,900 

12,800

15,900

7,110 

10,700 

9,350 

4,170 

1,410 

1,110 

674 

716 

358

15,900

June

980 

1,010 

1,020 

1,110 

1,020

926 

842 

802 

802 

858

882 

944 

874 

834 

794

842 

989 

917 

858 

866

818 

770 

746 

702 

646

625 

618 

639 

695 

688

July

674 

631 

623 

623 

611

597 

57'3 

55^ 

590 

520

493 

46i5 

460

460 

454

43R 

412 401- 

4013 39>'

382

376 

370 

351' 

346

340 

340 39'< 

358 

3V 

32-«

0 3,750 

0 5,200 

0 6,820 

5 9,600

Aug.

302 

296 

290 

285 

280

275 

270 

265 

255 

250

245 

240 

240 

250

716

576 

442 

352 

329 

296

285 

275 

290 

376 

352

324 

290 

280 

270 

255 

245

Minimum than

285 476 

312 2,802 

629 3,179

160 1,235

642 1,910 

746 2,648 

1,360 3,241 

1,020 1,624 

899 1,049 

618 837 

324 462 

240 313 

165 213

165 1,556

Sept.

240 

235 

230 

225 

220

215 

205 

200 

195 

195

190 

185 

185 

185 

185

181

173 

177 

177 

173

173 

165 

173 

210 

280

358 

324

275 

240 

220

Runoff In 

acre-feet

29,270 

166,700 

195,500

894,000

117,400 

147,100 

199,300 

96,650 

64,490 

49,820 

28,410 

19,230 

12,670

1,127,000

v. 27 (2 a.m.) 19,200 sec. -ft.} Dec. 2 (l a.m.) 14,300 

.} Jan. 21 (6 a.m.) 8,650 sec. -ft.} Fet . 26 (7 a.m.) 

.-ft. 

-27, Dec. 27 to Feb. 25, Apr. 18 to June 30.
44 SKOKOMISH RIVER BASIN

South Fork Skokomish River near Union, Wash.

Loeation.--Water-stage recorder, lat. 47°20 I 30", long. 123°16 I 30", in NE£ sec. 2, T. 21 

N. , K. 5 W., 2-| miles upstream from Vance Creek, 2i miles upstream from confluence with 

North Pork, and 8 miles west of Union.

Drainage area.--81 square miles.

Records available. August 1931 to September 1950.

Average discharge.--19 years, 673 second-feet.

Extremes. Maximum discharge during year, 13,000 second-feet Nov. 26 (gage height, 11.00 

feet); minimum, 103 second-feet Oct. 3 (gage height, 3.36 feet).

1931-50: Maximum discharge, 21,600 second-feet Jan. 22, 1935, from rating curve 

extended above 11,000 second-feet; maximum gage height, 11.0 feet Jan. 22, 1935, Nov. 

26, 1949; minimum discharge, 62 second-feet Sept. 18, 1938.

Remarks.--Records good. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

108 

106 

106 

165 

216

190 

165 

146 

284 

319

403 

324 

264 

237 

221

204 

201 

182 

171 

165

152 

146 

143 

137 

135

135 

165 

1,150 

576 

386 

309

Nov.

260 

233 

212 

201 

190

178 

171 

298 

998 

858

3,280 

2,950 

2,400 

2,260 

1,410

998 

805 

675 

576 

501

460 

878 

1,330 

1,300 

2,480

6,640 

7,180 

3,890 

2,950 

2,480

Dec.

4,830 

4,620 

2,790 

2,180 

2,040

1,830 

1,600 

1,450 

1,300 

1,180

1,060 

1,010 

943 

910 

900

889 

900 

826 

786 

748

729 

796 

1,56,0 

1,680 

1,580

1,490 

3,930

7,120 

4,720 

2,710 

1,970

Jan.

1,550 

1,320 

1,170 

1,080 

998

976 

910 

858 

836 

836

776 

738 

720 

693 

675

649 

632 

623 

786 

2,700

4,530 

3,110 

1,730 

1,190 

943

816 

701 

640 

57G 

523 

494

Month

Octc 

NOVE

Dece

Ca

Jami 

Febl 

Hare 

Apr! 

May 

June 

Juls 

Augu 

Sept

Wa

lendar year 1949 

ary

ember ..................

ter year 1949-50 ..........

Feb.

473 

447 

435 

480 

480

632 

584 

640 

568 

568

552 

584 

1,040 

1,040 

2,950

2,790 

1,730 

1,460 

1,400 

1,200

1,100 

1,270 

1,380 

2,040 

3,280

5,540 

2,560 

1,710

Second 

foot-days

7,611 

49,042 

61,077

269,645

34,779 

38,933 

42,515 

30,477 

22,979 

18,718 

9,725 

6,991 

4,442

327,289

Mar.

1,360 

1,310 

3,270 

3,980 

3,200

2,260 

1,670 

1,380 

1,190 

1,050

900 

805 

748 

675 

693

1,140 

1,750 

1,640 

1,590 

1,380

1,180 

1,120 

1,100 

1,180 

1,030

910 

954 

889 

776 

710 

675

Maximum

1,150 

7,180 

7,120

7,180

4,530 

5,540 

3,980 

2,480 

1,150 

847 

480 

649 

197

7,180

Apr.

816 

847

786 

701 

693

729 

701 

649 

632 

615

710 

1,510 

1,310 

1,120 

1,970

2,330 

2,480 

1,540 

1,250 

1,240

1,180 

1,020 

889 

786 

710

684 

675 

623 

623 

658

May

720 

729 

684 

649 

632

607 

568 

568 

599 

658

816 

1,120 

1,150 

1,030 

921

868 

816 

729 

666 

658

693 

738 

666 

615 

658

776 

878 

776 

693 

658 

640

Minimum

106 

171 

729

85

494 

435 

675 

615 

568 

435 

225 

175 

121

106

June

720 

758 

796 

847

776

640 

584

584 

599

632

693 

748 

666 

607 

584

658 

796 

693

675 

675

607 

544 

537 

494 

447

435 

441 

473 

508 

501

Mean

246 

1,635 

1,970

739

1,122 

1,390 

1,371 

1,016 

741 

624 

314 

226 

148

897

July

480 

454 

447 

435 

428

409 

380 

374 

380 

335

314 

303 

309 

303 

293

279 

274 

274 

274 

264

260 

260 

260 

255 

242

237 

233 

269 

242 

233 

225

Per 

square 

mile

3.04 

20.2 

24.3

9.12

13.9 

17.2 

16.9 

12.5 

9.15 

7.70 

3.88 

2.79 

1.83

11.1

Aug.

221 

221 

212 

208 

204

204 

201 

201 

197 

197

193 

193 

190 

193 

649

357 

269 

242 

221 

208

201 

197 

208 

246 

229

204 

197 

193 

182 

178 

175

Sept.

168 

168 

162 

162 

162

159 

156 

152 

152 

149

149 

146 

146 

143 

140

137 

135 

132 

132 

129

126 

124 

121 

140 

178

197 

165 

146 

137 

129

Runoff

Inch3S

3.49 

22.52

28.04

123.80

15.97 

17.88 

19.52 

13.99 

10.55 

8.59 

4.47 

3.21 

2.04

150.27

Peak discharge (base, 6,000 seo.-ft .) .--Nov. 26 (11 p.m.) 13,000 sec. -ft.; Dec. 1 (1*) p

Acre-feet

15,100 

97,270 

121,100

534,800

68,980 

77,220 

84,330 

60,450 

45,580 

37,130 

19,290 

13,870 

8,810

649,100

.m.) 7,540

6,290 sec.-ft.

Note. Shifting-control method used Jan. 21 to Apr. 8, June 1 to Sept. 30.
UNION RIVER BASIN 45

Union River near Bremerton, Wash.

Location.--Water-stage recorder, lat. 47°31'50", long. 122°47'00", in SW^'Et sec. 34, T. 

i!4 N., R. 1 W., 500 feet upstream from county bridge and 7 miles west of Bremerton. 

Datum of gage is 398.0 feet above mean sea level (by closed stadia traverse).

Drainage area. 3.2 square miles.

Records available.--October 1945 to September 1950.

Extremes. Maximum discharge during year, 309 second-feet Nov. 26 (gage height, 3.82 feet); 

minimum, 0.3 second-foot on many days in August and September.

1946-50: Maximum discharge, 318 second-feet Feb. 22, 1949 (gage height, 3.85 feet); 

minimum, 0.3 second-foot on many days in August and September 1950.

Remarks. Records good. No diversion or regulation.

Rating tables, vater year 1949-50, except period of ice effect 

(gage height, In feet, and discharge, In second-feet)

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

0.5 0.4 1.0 6.3 2.4 111 0.4 0.6 0.9 5.6 2.3 100 

.6 1.0 1.2 11 2.8 161 .5 1.2 1.1 10.5 2.6 135 

.7 1.8 1.5 24 3.2 216 .6 1.9 1.4 23 2.9 174 

.8 3.0 1.8 48 .7 2.8 1.7 44 

.9 4.5 2.1 77 .8 3.9 2.0 70

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.6 

.6 

1.1 

1.2

1.0 

.9 

.8 

1.4 

1.3

2.6 

1.5 

1.2

1.1

1.1

1.1 

1.0 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

1.0 

1.3 

4.0 

2.5 

2.0 

1.7

Nov.

1.5 

1.5 

1.4 

1.4 

1.3

1.3 

1.2 

1.8 

2.9 

3.7

21 

56 

55 

46 

33

22 

17.5 

14 

12 

10.5

9.0

11 

14 

14.5 

32

134 

176 

66 

39 

30

Dec.

61 

89 

52 

35 

24

18 

15 

13.5 

12 

10.5

9.5

9,0 

8.5 

8.0 

7.8

7.6 

9.8 

9.8 

9.2 

8.5

8.3 

8.3 

17 

32 

29

23 

38 

118 

87 

52 

35

Jan.

25 

18.5 

15 

14 

12

13 

12 

11 

10 

*12

10 

9.2

b8.5 

b8.0 

7.6

7.1 

6.9 

6.5 

9.5 

118

216 

166 

79 

44 

28

22 

17 

15 

13 

11.5 

11

Feb.

9.2 

8.4 

8.1 

10.5 

12

25 

26 

43 

42 

42

35 

46 

112 

82 

110

87 

55 

38 

29 

24

20 

19 

21 

28 

55

84 

55

*36

u,,,,* v. SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 ......

38.8 

830.5 

865.3

3,952.3

ember .................. . .

956.3 

1,162.2 

L.013.0 

371.0 

113.5 

46.9 

23.7 

19.2 

14.9

ter year 1949-50 .......... 5,455.3

Mar.

27 

23 

46 

82 

88

62 

42 

31 

24 

20

17 

15 

14.5 

13 

12.5

16 

29 

45

se

46

37 

37 

35 

34 

30

30 

27 

22 

19.5

17 

15.5

Maximum

4.0 

176 

118

211

216 

112 

88 

33 

6.4 

2.0 

1.0 

2.6 

1.3

216

Apr.

14 

13 

11.5 

10.5 

10

9.5 

8.6 

7.8 

7.3 

6.8

7.6 

11.5 

9.8 

9.8 

15.5

23 

33 

27 

20

17

14.5 

12.5 

11.5 

10.5 

9.5

8.9 

8.9 

7.8 

7.1 

6.6

May

6.4 

6.0 

5.6

s'.o

5.0 

4.6 

4.5 

4.3 

4.2

3.9 

3.8 

3.7 

3.5 

3.4

3.3 

3.4 

3.5

3.3

3.1

3.0 

2.9 

2.8 

2.6 

2.5

2.4 

2.5

2.4 

2.4 

2.2 

2.1

June

2.0 

2.0 

1.8 

1.8 

1.9

2.0 

2.0 

2.0

1.8 

1.7

l'.6 

1.6 

1.7 

1.6

1.5 

1.5 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.3

1.2 

1.2 

1.2 

1.1 

1.0

Minimum Mean

0.6 1.25 

1.2 27.7 

7.6 27.9

.5 10.8

6.5 30.8 

8.1 41.5 

12.5 32.7 

6.6 12.4 

2.1 3.66 

1.0 1.56 

.6 .76 

.4 .62 

.3 .50

.3 14.9

Peak discharge (base, 125 sec. -ft.). Nov. 26 (11:30 p.m.) 309 sec. -ft.

July

1.0 

.9 

.9 

.8 

.8

.8 

.8 

.9 

.9 

.9

.9

.8 

.7 

.7 

.8

.7 

.7 

.6 

.8 

.7

.6 

.6 

.6 

.6 

.6

.6 

.7 

1.0 

.8 

.8 

.7

Per 

square 

mile

0.391 

8.66 

8.72

3.38

9.62 

13.0 

10.2 

3.88 

1.14 

.488 

.238 

.194 

.156

4.66

Aug.

0.5 

.6 

.6 

.6

.6

.6 

.6 

.6 

.5 

.4

.4 

.4 

.4 

.5 

2.6

1.2 

.8 

.7 

.6 

.5

.5 

.5

.6 

.7 

.6

.5 

.5 

.4 

.4 

.4 

.4

Sept.

0.4 

.4 

.4

.6 

.4

.4 

.4 

.3 

.3 

.4

.4 

.4

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.3 

.3 

.4

1.3

1.1

.8 

.7 

.7 

.7 

.6

Runoff

Inches

0.45 

9.65 

10.06

45.93

11.11 

13.51 

11.77 

4.31 

1.32 

.55 

.28 

.22 

.17

63.40

Acre-feet

77 

1,650 

1,720

7,850

1,900 

2,310 

2,010 

736 

225 

93 

47 

3.8 

30

10,840

; Dec. 28 (2 p.m.) 153 sec*-

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
46 UNION RIVER BASIN

Union River near Belfair, Wash.

Location. Water-stage recorder, lat. 47°28'20", long. 122°49'40", in NEi;- sec. 20, T. 23 

N., R. 1 W., at highway bridge 1 mile north of Belfair and 2 miles upstreair from mouth. 

Datum of gage is 45.6 feet above mean sea level (by closed stadia traverse).

Drainage area.--19.0 square miles.

Records available.--July 1947 to September 1950.

Extremes. Maximum discharge during year, 1,160 second-feet Jan. 21 (gage height, 6.62 

reet); minimum, 16.5 second-feet Sept. 12, 14, 16-18, 20-23.

1947-50: Maximum discharge, 1,610 second-feet Feb. 22, 1949 (gage height, 7.81 

feet), from rating curve extended above 500 second-feet; minimum, 13 second-feet Sept. 

29, 1947 (gage height, 1.44 feet).

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

City of Bremerton diverts annually about 3,100 acre-feet several miles above station 

for municipal use. The diversion varies-from almost no flow in August and September 

to as much as 10 second-feet during the winter months.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

20 

20 

20 

22 

22

20 

20 

20 

1 22 

20

22

la. 5

19 

19 

18

18 

17.5 

17.5 

17 

17.5

17.5 

17.5 

17.5 

17.5 

17.5

17.5 

19.5 

31 

20 

19.5 

19

Nov.

18.5 

18 

18 

18 

18

18 

18 

19.5 

21 

24

87 

166 

144 

120 

72

54 

43

37 

34 

31

29 

37 

46 

46 

102

367 

637 

212 

142 

121

Dec.

168 

250 

154 

122 

104

90 

82 

74 

70 

66

62 

60 

60 

58 

58

57 

70 

66 

60 

57

55 

55 

96 

114

111

97 

148 

332 

232 

137 

107

Jan.

84 

68 

60 

54 

54

56 

59 

53 

49

60

56 

49 

44 

a43 

a42

a41 

a 40 

a41 

47 

235

894 

693 296' 

166

111

95 

79 

72 

a66 

a58 

a56

Feb.

a54 

a50 

a48 

a56 

60

109 

103 

167 

153 

138

125 

150 

376 

250 

306

259

170 

134 

120 

108

97 

95 

104 

122 

196

268 

174 

131

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949

h. ......................................

ter year 1949-50 .......................

Mar.

107 

105 

210 

306 

306

199 

140 

122 

110 

96

87 

80 

77 

73 

72

96

140 

160 

185 

151

133 

139 

134 

131 

113

113

108 

94 

86 

80 

76

Apr.

75 

69 

65

62

61

60 

58 

56 

54 

54

56 

75 

60 

55 

83

94

101 

83 

70 

60

55 

53 

50 

47

47

45 

46 

43 

42

41

Secondfoot-clays

605 

2,718 

3,272

20,004

3,821 

4,123 

4,029 

1,820 

1,151 

965 

828 

668 

539.5

24,539.5

May

42 

40 

40 

40 

40

40 

39 

39 

38 

38

37 

37 

37 

37 

37

36 

37 

37 

37 

36

36 

36 

36 

36 

35

35 

35 

35 

35 

34 

34

Maximum

31 

637 

333

1,270

894 

376 

306 

101 

42 

34 

30 

30 

20

894

June

34 

34 

33 

33 

33

34

34 

33 

33 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

31 

31 

30 

30 

30

Minimum

July

30

30 

29 

29 

28

28 

28 

29 

28 

28

28 

28 

27 

27 

27

27 

26 

26 

26 

26

25 

25 

25 

25 

24

25 

25 

26

25 

24 

24

17 

18 

55

17

40 

48 

72 

41 

34 

30 

24 

18.5 

16.5

16.5

Ar*.

23 

24 

23 

23 

23

23

22 

22 

22 

21

21 

21 

21 

22 

30

23

22 

21 

20 

20

21 

20 

21 

21 

21

20 

20 

20 

19.5 

19 

18.5

Mean

19.5 

90.6 

106

54.8

123 

147 

130 

60.7 

37.1 

32.2 

26.7 

21.5 

18.0

67.2

Sept.

18.5 

18.5 

19 

19 

18.5

19

18.5 

18 

18 

17.5

17.5 

1-7-. 5 

17.5 

17.5 

17.5

17 

17 

17 

18 

17.5

16.5 

17.5 

17.5 

20 

20

19 

18 

17.5 

17.5 

17.5

Runoff in 

acre-feet

1,200 

5,390 

6,490

39,660

7,580 

8,180 

7,990 

3,610 

2,280 

 1.-910 

1,640 

1,320 

1,070

48,660

Peak discharge (base, 400 see.-ft.) .--Nov. 27 (3 a.m.) 1,060 sec.-ft.; Dec. 28 (4:30 p.m.) 419 sec,- 

ft.j Jan. 21 (5 a.m.) 1,160 sec.-ft.j Feb. 13 (11 a.m.) 441 sec.-ft.

a No gage-height record; discharge computed on basis of records for nearby streams.
MISSION CREEK BASIN 47

Mission Lake near Bremerton, Wash.

Location.--Water-stage recorder, lat. 47°32', long. 122°50', in NEvNW-j sec. 32, T. 24 N.,

 K. I W., 300 feet from lake outlet and 9| miles west of Bremerton. Datum of gage is 

513.0 feet above mean sea level (by closed stadia traverse).

Records available. June 1945 to September 1950.

Extremes. Maximum gage height during year, 4.58 feet Jan. 32; minimum, 1.68 feet Sept. 23.

 1945-50: Maximum gage height, 6.36 feet Feb. 22, 1949; minimum, that of Sept. 23, 1950.

Remarks.--No diversion or regulation.

Gage height, in feet, water year October 1949 to September 195C

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

.

_

-

-

-

_

-

-

_

-

_

-

_

_

-

_

2.19

2.18

2.16

2.16

2.16

2.16

2.16

2.16

2.17

2.17

2.21

2.31

2.31

2.30

2.30

Nov.

2.30

2.30

2.29

2.28

2.23

2.18

2.16

2.18

2.23

2.29

2.58

2.99

3.27

3.23

2.97

2.79

2.65

2.56

2.49

2.43

2.38

2.42

2.56

2.69

2.93

3.55

4.44

3.95

3.53

3.30

-

Dec.

3.33

3.54

3.41

3.23

3.09

2.95

_

-

_

-

.

-

_

.

-

_

.

_

_

-

.

_

_

.

-

.

_

_

_

.

-

Jan.

_

-

-

-

-

_

-

_

_

-

_

2.59

2.58

2.56

2.54

2.50

2.49

2.46

2.54

2.94

4.17

4.50

4.10

3.64

.

_

_

_

_

-

Feb.

_

-

-

-

-

2.69

2.75

2.89

2.99

3.03

3.05

3.10

3.59

3.71

3.82

3.83

3.57

3.34

3.17

3.05

2.95

2.87

2.86

2.90

3.07

3.44

3.41

3.25

_

-

Mar.

3.08

3.01

3.07

3.36

3.58

3.52

3.35

3.20

3.08

2.96

2.86

2.78

2.73

2.68

2.65

2.69

2.83

2.96

3.14

3.16

3.14

3.12

3.08

3.07

3.02

2.99

2.95

2.87

2.81

2.77

2.72

Apr.

2.69

2.65

2.61

2.57

2.55

2.52

2.49

2.47

2.44

2.42

2.43

2.51

2.50

2.49

2.57

2.65

2.74

2.73

2.70

2.67

2.62

2.59

2.57

2.53

2.51

2.49

2.48

2.46

2.44

2.42

Hay

2.41

2.40

2.38

2.37

2.36

2.35

2.34

2.33

2.32

2.31

2.30

2.30

2.28

2.27

2.26

2.25

2.26

2.26

2.25

2.24

2.E4

2.22

2.21

2.19

2.18

2.18

2.17

2.16

2.15

2.15

2.14

June

2.13

2.12

2.10

2.10

2.10

2.12

2.13

2.12

2.11

2.10

2.10

2.10

2.09

2.09

2.08

2.08

2.08

2.07

2.07

2.07

2.07

2.06

2.06

2.07

2.06

2.06

2.05

2.05

2.05

2.05

July

2.03

2.02

2.01

2.00

1.99

1.98

1.97

1.97

1.97

1.95

1.95

1.94

1.94

1.93

1.93

1.92

1.91

1.91

1.91

1.90

1.90

1.90

1.89

1.88

1.87

1.86

1.85

1.87

1.87

1.86

1.86

Aug.

1.85

1.85

1.84

1.84

1.84

1.82

1.81

1.81

1.80

1.81

1.79

1.78

1.77

1.78

1.89

1.90

1.89

1.88

1.88

1.89

1.89

1.88

1.89-

1.90

1.88

1.88

1.87

1.87

1.86

1.85

1.85

Sept.

1.84

1.84

1.84

1.84

1.83

1.82

1.79

1.77

1.77

1.76

1.77

1.76

1.75

1.75

1.73

1.73

1.72

1.72

1.71

1.70

1.69

1.69

1.69

1.74

1.79

1.81

1.80

1.80

1.79

1.77
MISSION CREEK BASIN

Mission Creek near Bremerton, Wash.

Drainage area. 1.9 square miles.

Records available.--June 1945 to September 1950.

Extremes. Maximum discharge daring year, 90 second-feet Jan. 22 (gage height, 4.58 feet) 

no flow for many days.

1945-50: Maximum discharge, 9G second-feet Feb. 2U, 1949 (gage height, 6.36 feet); 

no flow at times each year.

Rating table, water year 1949-5O, except periods of indefinite stagedischarge relation or shifting control 

(gage height, In feet, and discharge, In second-feet)

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29

30 

31

1.8 0 2.6 7.8 3.6 40 

2.0 .3 2.8 13 4.0 57 

2.2 1.4 3.0 18.5 4.5 84 

2.4 3.9 3.3 28

Discharge, Ln second- feet, water year October 1949 to September 1950

Oct.

O 

C 

0

.1

0

0 

0

0

.1

0

0 

0

0

0

o

0

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

.2 

.2 

0 

0

Nov.

0

C 

0 

0

.1

.2 

.3

.4

.6

.8

1.0 

.8 

.6 

3.0 

17

14.5 

11 

8.6 

7.2

6.0

5.0 

5.8 

4.0 

3.5 

7.0

39

81 

56 

38

30

Dec

31

39 

34 

27 

22

18 

16 

14 

13 

12

11 

10 

9.5 

9 

8.5

8 

9 

10 

9 

8

7.5 

7 

9 

11 

14

14 

15 

20 

40 

35 

30

Jan.

25 

2O 

15 

11 

9.0

10 

9.0 

8.5 

8.2 

8.0

8.5 

8.2 

8.0 

7.6 

7.2

6.4 

6.2 

5.6 

7.2 

17.5

64 

84 

62 

42

35

23 

17 

13 

10 

9.0 

8.0

Feb.

7.5 

7 .0 

6.5 

8.0 

9.5

10.5 

12 

15 

18 

19.5

20 

22 

40 

44 

49

49 

39 

30 

24

20

17 

14.5 

14.5 

15.5 

21

34 

32

27

uA «4-u Second 

Month foot-days

Ootc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apra 

May 

June 

Jul; 

Augu 

Sept

We

mber . . 

lendar ji 

ary

ear 1949

ember ............... .....

0.6 

341.4 

520.5

= ,129.0

573.1 

626.0 

600.3 

214.3 

67.9 

21.0 

4.0 

.2 

0

ter year 1949-50 ...... ... 2,969.3

Mar.

21 

19 

21 

31 

39

37 

30 

25 

21 

17.5

14.5 

12.5 

11.5 

10 

9.3

10.5 

13.5 

17.5 

23 

24

23

22 

21 

21 

19

18 

17 

14.5 

13.5

12.5 

11

Maximum

0.? 

81 

40

90

84 

49 

39 

11 

4.C 

.9 

.4 

.1 

0

84

Apr

10.5 

9.3 

8.6 

7.8 

7.4

6.8 

6.2 

5.8 

5.2 

4.8

5.0 

6.6 

6.4 

6.2 

7.4

8.8 

11 

11 

10 

9.3

8.2 

7.6 

7.2 

£.4 

6.0

5.6 

5.4 

5.0 

4.6 

4.2

May

4.0 

3.9 

3.6

LI

3.2

3.0 

2.9

2.7 

2.6

2.5 

2.5 

2.2 

2.1 

2.0

1.9 

2.0 

2.0 

1.9 

1.8

1.8 

1.6 

1.5 

1.4 

1.3

1.3 

1.2 

1.1 

1.1 

1.1 

1.0

June

0.9 

.9 

.8

.8 

.6

.9 

.9 

.9

.8 

.8

.8 

.8

.7 

.7 

.7

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.5 

.5

P 

Minimum Mean sqi 

m

July

0.4 

.4 

.3 

.3 

.3

.2 

.2

.2 

.2 

.2

.2

.1 

.1 

.1 

.1

'.I

 i

.1 

.1

0 

0 

0

0 

0 

0 

0 

0 

0

Aug.

O 

0

O 

o

0

0 

0 

0

o

0

0 

0

o

0 

0

.1

0 

0 

0 

0

0

0 

0

.1

0

0 

0 

0 

0 

0 

0

Sept.

er Runoff

le Inches Acre-feet

0 0.02 0.011 0.01 1.2 

0 11.4 6.00 6.68 677 

7 16.8 8.84 10.19 1,030

0 5.83 3.07 41.68 4,220

5.6 18.5 9.74 11.22 1,140 

6.5 22.4 11.8 12.25 1,240 

9.3 19.4 10.2 11.75 1,190 

4.2 7.14 3.76 4.19 425 

1.0 2.19 1.15 1.3^ 135 

.5 .70 .368 .41 42 

0 .13 .068 .08 7.9 

0 

0000 

.006 .0032 .004 .4 

0

0 8.14 4.28 58.114 5,890

Peak discharge (base, 35 sec.-ft.). Nov. 27 (7 a.m.) 87 sec.-ft.; Dec. 2 (10 a.m. ta 2 p.m.) 40 

sec.-ft.; abouE Dec. 29 (time unknown) 43 sec.-ft.; Jan. 22 (9 a.m.) 90 sec.-ft.j 10 p.m. Feb. 15 

to 1 a.m. Feb. 16, 52 sec.-ft.; Feb. 26 (2 p.m.) 35 sec.-ft.; Mar. 5 (6 p.m.) 40 sec.-ft.

Note. No gage-height record Oct. 1-17, Dec. 7 to Jan. 11, Jan. 25 to Feb. 5; stage-discharge relation Indefinite Oct. 18 to Nov. 15, Nov. 23-25; discharge computed on basis of 1 discharge measure 

men't and records for nearby streams. Shifting-control method used Nov. 16-22, Nov. 26 to Dec. 6, 

Jan. 12-19, Feb. 6, 7, Mar. 12-16, Mar. 29 to Apr. 15.
MISSION CREEK BASIN 49

Mission Creek near Belfair, Wash.

Location. Water-stage recorder, lat. 47°29'20", long. 122°51'40", in NW^ sec. 18, T. 23 

N., K. 1 W., 3 miles northwest of Belfair and 5 miles upstream from mouth. Datum of 

gage is 330.0 feet above mean sea level (by closed stadia traverse).

Dr ainage are a.--4.4 square miles.

Records available. October 1945 to September 1950.

Extremes. Maximum discharge during year, 230 second-feet about Jan. 22 (gage height, 4.95 

feet, from recorded range in stage); minimum, 0.2 second-foot on many days.

1945-50: Maximum discharge, 403 second-feet Feb. 22, 1949 (gage height, 6.10 feet, 

from graph based on gage readings); minimum, 0.1 second-foot July 16-24, Aug. 31 to 

Sept. 4, Oct. 6, 7, 1947.

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

No regulation or diversion.

Eating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet)

(Shifting-control method used Apr. 11 to Aug. 12, 

Aug. 19 to Sept. 30)

0.9 0.1

1.1 .9

1.3 2.6

1.5 5.3

1.7 8.7

1.9 

2.1 

2.4 

2.7 

3.0

12.5

55

3.3 73

3.6 94

4.0 128

4.5 178

5.0 237

Discharge, in second-feet, water year October 1949 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

Oct.

0.3

.3

.3

.5

.4

.3

.3

m 2

U

.3

.3

.2

.2

.2

.3

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.4

.6

.3

.2

.2

Nov.

0.2

.2

.2

.2

.3

.3

.4

.9

1.1

1.3

1.6

1.1

.9

12

29

22

17.5

13.5

11

8:7

7.0

8.2

5.8

4.2

8.7

51

206

119

70

50

-

Dec.

56

82

65

50

40

32

26

22

19

16

13.5

12.5

11.5

10.5

10

9.1

10.5

11.5

10

9.4

8.9

8.5

11

20

24

25

28

56

93

76

59

Jan.

46

37

28

20

16

17

15

14

14

15

14

13

12.5

12

11.5

10.5

10

9.5

13

25

70

220

170

90

55

45

35

25

20

16

14

Month

October ..... ............. ...

November .............. .......

December ......................

Calendar year 1949 .........

January .......................

February ........... ..........

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

April ... ...... .......... ...

May ........ ..................

June ...... .............. ...

July ..........................

August .......... ..........

September ................... .

Water year 1949-50 ..........

Feb

13

12

11

13

16

19

22

27

34

37

40

45

60

65

80

80

70

50

45

35

30

25

25

30

45

60

50

45

_

_

-

Secondfoot-days

9 3

652 . 3

925.9

4,147.8

1,113

1,084

1,074 

380.2

109.3

29.7

21.2

12.0

7.0

5,417.9

Mar.

35

32

30

40

85

80

61

49

42

36

30

26

23

22

20

22

25

30

35

40

38

37

35

33

32

29

26

24

21

19

17

Maximum

0.6

206

93

348

220

8O

85

22

8.0

1.3

. £

.6

.4

220

Apr.

15

14

13

12

11

10

9.6

8.5

7.5

6.8

7.7

11

10

9.3

14

18

22

22

21

19

17

16

14

12.5

11.5

11

10.5

9.4

8.7

8.2

-

May

8.0

7.3

6.6

6.0

5.8

S.5

5.2

4.9

4.6

4.4

4.3

4.0

3.9

3.8

3.4

3.1

3.0

2.9

2.4

2.3

2.1

2.0

1.9

1.8

1.7

1.6

1.5

1.4

1.4

1.3

1.2

Minimum

0.2

.2

8.5

.2

11 9.5'

17

6.8

1.2

 8

.5

.2

.2

.2

June

1.3

1.2

1.1

1.1

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

-

Mean

0.30

21.7

29.9

11.4

35. 9

38 7

34.6

12.7

3.53

99

 68

.39

!23

14.8

July Aug.

0.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

Per 

squa re

mile

0.068

4.93 eiso

2.59

8 .16

8 «80

7 86

 802

 225

!l55

.089

.052

3.36

0.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.6

.4

.4

.4

.3

.3

.3

.3

.4

.4

.3

.3

.3

.3

.3

.3

.2

Sept.

0.2

.2

.3

.3

.3

.2

.2

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

. 2

.2

.2

o

.2

.2

.4

.3

.2

.2

.2

.2

.2

-

Runoff

Inches

0.08

5.51

7.83

35,05

9.41

9.16

9 .08

3 . 21

!92

25

. 18

.10

.06

45.79

Acre-feet

1,290

1,840

8,230

2-, 210

2,150

2,130 

754

217

59

42

24

14

10,750

Peak discharge (base. 60 aeg.-ft. }I. Nov. 27 (7:3O a.m.) 224 sec.-ft.; Dec. 2 (6 to 11 a.m.) 84 

sec.-ft.j Dec. 29 (4 p.m.; 94 sec.-ft.j about Jan. 22 (time unknown) 230 sec.-ft.; about Feb. 15 or 

16 (time unknown) 137 sec.-ft. ; Feb. 26 (time and discharge unknown); about Mar. 5 (time and discharge unknown).

Note. No gage-height record Jan. 3 to Mar. 6, Mar. 15 to Apr. 6j discharge computed on basis of 

3 discharge measurements, recorded ranges in stage, and records for nearby streams.
50 TAHUYA RIVER BASIN

Tahuya River near Bremerton, Wash.

Location. Water-stage recorder, lat. 47°33'00", long. 122°50'30", in SE^SE^- sec. 19, T. 

24 N., R. 1 W., ij miles downstream from Tahuya Lake and 10 miles west of Bremerton. 

Datum of gage 539 feet above mean sea level (by closed stadia traverse).

Drainage area. 6.12 square miles (revised). 

Records available. May 1945 to September 1950.

Extremes. Maximum discharge during year, 431 second-feet Jan. 21, 22; maximum gage height> 

5.58 feet Nov. 27; minimum, 0.2 second-foot July 4-7, Aug. 29 to Sept. 4.

1945-50: Maximum discharge, that of Jan. 21, 22, 1950; maximum gage height, that of 

Nov. 27, 1949; minimum discharge, 0.1 second-foot Sept. 22-26, 1947, Sept. 1-10, 12, 13, 

1949.

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

those for periods of no gage-height record, which are poor. Small diversions for domestic use. No regulation.

Rating table, water year 1949-50, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

2.55 0.2 3.0 22 4.0 165 

2.6 .6 3.1 31 4.5 261 

2.7 3.3 3.3 53 5.2 401 

2.8 7.6 3.5 80 

2.9 1-4.5 3.7 111

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

U 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5 

.5 

.6 

.9

1.3

.9 

.7 

.7 

1.2 

1.2

1.5 

1.2 

1.0 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9

.7 

.7 

.9 

.9

1.0 

1.3 

3.8 

3.3 

2.9 

2.9

Nov.

2.7 

2.7 

2.7 

2.7 

2.9

2.9 

2.9 

3.6 

5.1 

5.4

19 

66 

90 

82 

65

49 

35 

28 

20

16

13 

16.5 

25 

28 

59

166 

364 

170 

109 

80

Dec.

108 

161 

120 

82 

59

40 

29 

24 

19 

16.5

14 

12.5 

12 

11 

10.5

9.8 

14 

15.5 

14 

13

12 

12 

24 

53 

57

49 

66 

145 

164 

102 

67

Jan.

51 

40 

32 

28 

23

26 

23 

20 

17 

23

18.5 

16 

14 

12 

11

10 

9 

8 

15

150

391 

371 

167 

84 

55

45 

35 

30 

25 

21 

20

Feb.

15 

13 

12 

18 

25

40 

45 

52 

61 

60

57 

61 

165 

148 

192

184 

109 

74 

57

46

39 

36 

36 

40 

61

132 

114 

79

« +>, SecondMonth foot-days

Goto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 ......

&ry

37.8 

,534.1 

,533.8

7,072.7

....... 1

st ........................

ember .....................

,790.5 

,971 

,792 

593.5 

189.5 

64.7 

13.7 

12.6 

10.8

ter year 1949-50 .......... 9,544.0

Mar.

57 

47 

60 

106 

135

118 

88 

65 

52 

42

36 

31 

28 

25 

£3

28 

41 

61 

90 

88

74 

69 

63 

62 

61

56 

51 

42 

36 

30 

27

Maximum

3.8 

364 

164

385

391 

192 

135 

45 

10.5 

5.0 

1.9 

.8 

.8

391

Apr.

23 

21 

18 

17 

14.5

14.5 

13.5 

13 

12 

11

12 

17.5 

17 

16 

27

35 

45 

41 

35 

29

24 

22 

19 

17 

15

14.5 

14.5 

13 

12 

10.5

May

10.5 

9.4 

9.4, 

8.8 

8.2

8.2 

7.6 

7.6 

6.7 

7.1

6.7 

6.3 

6.7 

6.3 

5.8

5.8 

5.4 

5.8 

5.8 

5.8

5.4 

5.4 

5.4

4.6 

4.6

4.6 

4.2 

3.3 

3.3 

1.9 

2.9

June

4.6 

4.2 

2.5 

1.6 

1.2

1.6 

2.5 

5.0 

4.2 

2.9

1.4 

1.6 

3.3 

2.9 

2.5

2.2 

1.9 

1.9 

2.5 

1.9

1.5 

1.0 

.5

.4 

.4

.4 

.5 

1.9 

3.3 

2.5

Minimum Mean

0.5 1.22 

2.7 51.1 

9.8 49.5

.1 19.4

8 57.8 

12 70.4 

23 57.8 

10.5 19.8 

1.9 6.11 

.4 2.16 

.2 .44 

.2 .41 

.2 .36

.2 26.1

Peak discharge (base. 130 seo.-ft. ) . Nov. 27 (4:30 a.m.) 424 sec. -ft. j

P

sqi 

m

July

1.9 

.8 

.4 

.2 

.2

.2 

.2 

.3 

.5

.6

.6 

.6 

.5 

.4

.4

.4 

.3 

.3 

.4 

.5

.4

.4 

.3 

.3 

.3

.3 

.4 

.4 

.4 

.4 

.4

Aug.

0.4 

.4

.4 

.4 

.4

.4 

.4 

.4

.4 

.3

.3 

.3 

.3 

.4 

.8

.8 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4

.4

.4 

.4 

.8 

.2 

.2 

.2

Sept.

0.2 

.2 

.2 

.2 

.3

.3

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.5 

.8

.8 

.6 

.5 

.5 

.5

er Runoff

Lle Inches

0.199 0.23 

8.35 9.32 

8.09 9.32

3.17 43.06

9.44 10.88 

11.5 11.98 

9.44 10.89 

3.24 3.61 

.998 1.15 

.353 .39 

.072 .08 

.067 .08 

.059 .07

4.26 58.00

Acre feet

75 

3,040 

3,040

14,030

3,550 

3,910 

3,550 

1,180 

376 

128 

27 

25 

21

18,920

Dec. 2 (8:30 a.m.) 170

see.-ft.; Feb. 15 (9 p.m.) 237 sec.-ft.j Feb. 26 (3 p.m.) 139 sec.-ft.; Mar. 5 (5 p.m.) 142 seo.-ft.

Hote. No gage-height record Jan. 3-10, 12-20, Jan.. 25 to Feb. 7j discharge computed on basis of

weather records and records for nearby stations. Shifting-control method used Oct. 1 to Jan. 20.
TAHUYA RIVER BASIN 51

Tahuya River near Belfair, Wash.

Location. Water-stage recorder, lat. 47°29'40", long. 122°54'20", in SE^SE^ sec. 10, T. 

23~~N7, R. 2 W., 3j miles downstream from Panther Creek and 5 miles northwest of Belfair. Datum of gage 353 feet above mean sea level (by closed stadia traverse).

Drainage area. 16.5 square miles.

Records available.--May 1945 to September 1950.

Extremes. Maximum discharge during year not determined, probably occurred during period 

 or no gage height Jan. 21 or 22; no flow Oct. 2, 3, 7, 8, 13-27, Nov. 5-7, Sept. 1-30.

1945-50: Maximum discharge, probably Jan. 21 or 22, 1950; no flow at times each 

year.

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

those for periods of no gage-height record, which are poor. Small diversions for domestic use. No regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.1

0

0

.2

.2

.1

0

0

.1

.1

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.1.1

.1

Nov.

0.1.1

.1

.1

0

0

0

.1

.2

.3

18.5

89

108

105

80

62

49

40

34

28

24

28

42

46

71

260

628

327

188

129

-

Dec.

155

270

202

137

99

78

64

52

44

38

33

28

27

25

24

23

23

34

34

30

28

25

26

80

92

92

79

133

294

254

175

Jan.

127

94

71

50

40

45

42

40

39

43

40

39

38

36

35

34

33

32

100

250

750

1,000

450

224

150

125

115

110

105

100

100

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February

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

April .........................

 ay Uflv ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

95

90

85

90

97

103

118

182

175

166

152

183

370

318

396

370

254

180

148

124

106

98

104

118

191

318

240

167

_

-

Secondfoot-days

1.6

2,357.5

2,698

13,571.8

4,457

5,038

4,055

1,316

346.5

75.1

11.5

3.6

0

20,359.8

Mar.

123

108

153

262

318

262

184

140

117

1OO

85

72

65

61

57

68

116

155

217

182

159

150

134

135

127

112

106

89

75

65

58

Maximum

0.2

628

294

840

1,000

396

318

104

22

5.0

.6

.2

0

1,000

Apr.

52

46

42

38

35

33

31

29

27

24

25

41

41

38

63

88

104

87

72

60

52

46

40

36

32

30

30

27

24

23

-

Hay

22

20

19

18

17.5

17

15.5

15.5

14

13.5

13

12.5

11.5

11

10.5

9.5

9.5

10

9.0

9.0

8.6

8.2

7.7

7.0

6.3

5.9

5.9

5.6

5.0

4.7

4.1

Minimum

0

0

23

0

32

85

57

23

4.1

.8

.2

.1

0

0

June

3.8

5.0

4.4

3.8

3.0

3.0

3.0

3.3

4.7

4.4

3.8

3.0

2.5

2.5

3.0

2.8

2.2

2.0

1.8

1.6

1.8

1.6

1.4

1.2

1.1

1.0

.9

.9

8

.8

-

Mean

0.05

78.6

87.0

37.2

144

180

131

43.9

11.2

2.50

.37

.12

0

55.8

July

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.4

.4

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Per 

square 

mile

0.0030

4.76

5.27

2.25

8.73

10.9

7.94

2.66

.679

.152

.022

.0073

0

3.38

Aug.

0.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Sept.

Runoff

Inches

0.004

5.31

6.08

30.59

10.05

11:36

9.14

2.97

. 78

.1?

.03

.008

0

45^90

Acre-feet

3.2

4,680

5,350

26,920

8,840

9,990

8,040

2,610

687

149

23

7.1

0

40,380

Peak discharge (base, 450 sec.-ft.). Nov. 27 (3:30 a.m.) 760 sec.-ft.j probably Jan. 21 or 22 

(time and discharge unknown); Feb. 15 (6:30 p.m.) 450 sec.-ft.

Note. No gage-height record Jan. 4-23, Jan. 26 to Feb. 1, Feb. 3-5; discharge computed on basis 

of records for station near Bremerton. Shifting-control method used Nov. 11-26, Feb. 15 to Aug. 

31.
TAHUYA RIVER BASIN

Gold Creek near Bremerton, Wash.

Location. --Water-stage recorder, lat . 47°33'20", long. 122°48'30", iri NE^S/ii sec. 21, T. 

24 N, , R. 1 W. , about 1 mile upstream from mouth and 7' miles west of Bremerton. Datum 

of gage is 750.9 feet above mean sea level (by closed stadia traverse).

Drainage area.--l.S square miles.

Records available . --October 1945 to September 1950.

.Extremes . maximum discharge during year, £53 second-feet Nov. 26 (gage height 3.17 feet) 

minimum, 0.2 second-foot Aug. 14 (gage height, 0.75 foct).

1945-50: Maximum discharge, that of Nov. 26, 1949; minimum, that of Aug. 14, 1950.

Remarks . Records fair. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

0.6

.s

.8 

.9

.8 

.8 

.7 

1.1 

1.0

1.3 

.8 

.7 

.6 

.6

.5

.6 

.6 

.6 

.7

.6 

.6 

.7 

.7 

.7

.8

1.0 

2.2 

1.3 

1.2

1.1

.

Nov.

.1 

.1 

.3 

.5 

.7

.7 

.5 

2.1 

2.8 

2.8

13 

Z8 

23

17.5 

13

9.8 

7.8 

7.0 

5.8 

5.3

4.8 

6.3 

7.3 

8.0

13

86 

86 

23 

14 

12

Dec.

25 

37 

19

13.5 

11.5

8.8 

8.3 

7.5 

7.0 

6.0

5.8 

5.8 

5.8

5.5 

5.5

5.3 

7.3 

6.5 

6.0 

5.8

5.8 

5.8

11 

15.5 

14

11 

17 

50 

31 

18.5 

13

Jan.

10.5 

9.3 

9.0 

8.8 

7.3

8.1 

7.5 

6.8 

6.8 

8.5

6.5 

5.8 

a5.6 

a5.3 

a5.0

a4.5 

4.3 

4.3

6.8 

68

120 

73 

28 

14.5 

12

10.5 

a9.5 

aS.O 

a7.0 

a6.5 

a6.2

Feb.

a5.6 

a5.2 

aS.O 

a6.0 

a6.5

a!2 

a 13 

al7 

a!6.5

al6.5

13

17.5 

53 

29

55

31

17 

12.5 

10.5 

9.3

8.8 

8.3 

9.0 

10.5 

22

36 

18.5 

1Z

M°»th fooHays

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber . . 

mber

lendar year 1349 ......

 uary . 

h

25.8 

408.2 

395.5

2,058.3

1,

ember ..................

493.8 

476.2 

470.0 

198.8 

84.5 

38.4 

24.4 

17.3 

15.5

ter year 1949-50 .......... 2,648.4

Peak discharge (base, 100 sec. -ft.

a No gage -height record; discharge

Mar.

9.5 

9.8 

18.5 

32 

39

25 

17 

14 

12 

10.5

9.8 

9.0 

9.0 

8.3 

7.8

9.5 

14.5 

22 

29 

21

16 

16.5 

15.5 

15.5 

14

14 

12.5 

11.5 

9.8 

9.0 

8.5

Maximum

2.2

86

50

127

120 

53

59

13 

4.3 

2.0

1.0 

1.3 

1.4

120

Apr.

7.8 

7.3 

6.5 

6.3

5.8

5.8 

5.8 

5.3 

4.8 

4.5

5.0 

7.3 

5.8 

5.5 

9.0

10.5 

13 

10.5 

9.0 

7.8

7.3

6.5 

6.3

5.5 

5.5

5.3 

5.3 

4.8 

4.5 

4.5

May

4.3 

4.3 

4.0 

3.2 

3.2

3.2 

3.0 

2.8 

2.8 

2.8

3.0 

2.8 

2.8 

2.8 

2.5

2.4 

2.5 

2.5 

2.7 

2.7

2.5 

2.7 

2.5 

2.2 

2.1

2.1 

2.1 

2.0 

2.0 

2.0 

2.0

June

2.0 

1.7 

1.6 

1.5 

1.6

1.8 

1.8 

1.7 

1.7 

1.4

1.3

1.3 

1.1 

1.2 

1.1

1.0 

1.1 

1.1 

1.0 

1.0

1.0

1.0 

1.0 

1.2 

1.1

1.1 

1.0 

1.0 

1.0 

1.0

July

0.9 

.9 

.9 

.8 

.8

.8 

.8 

1.0 

1.0 

.8

.7

.8

.'a

.8

.8 

.8 

.8 

.9 

.8

.7 

.7 

.7 

.7 

.7

.7 

.7 

.8 

.7 

.7 

.7

Per 

Minimum Mean square 

mile

0.5 0.83 0.553 

1.1 13.6 9.07 

5.3 12.8 8.53

.5 5.64 3.76

4.3 15.9 10.6 

5.0 17.0 11.3 

7.8 15.2 10.1 

4.5 6.63 4.42 

2.0 2.73 1.82 

1.0 1.28 .853 

.7 .79 .527 

.3 .56 .373 

.4 .52 .347

.3 7.26 4.8-1

Aug.

0.7 

.7 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.5

.5

.5 

g

.3

1.3

.8 

.6 

.6 

.6 

.6

.5 

.5 

.6 

.6 

.5

.6 

.4 

.4 

.4 

.4 

.4

Sept.

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.6 

.5

.4 

.4 

.4 

.4 

.4

.4

.5 

.5 

.4 

.4

.5 

.4 

.6 

1.4 

1.2

.7 

.6 

.6

.5 

.5

Runoff

Inches Acre-feet

0.64 51 

10. 12 810 

9.81 784

51.04 4,080

12.24 979 

11.81 945 

11.65 932 

4.93 394 

2.10 168 

.95 76 

.60 48 

.43 34 

.38 31

65.66 5,250

. Nov. 26 (11 p.m.) 253 sec. -ft.; Jan. 21 (4 a.m.) 170 sec. -ft. 

computed on basis of records for nearby streams.

Panther Lake near Bremerton, Wash.

Location.--Staff gage, lat. 47°31', long. 122°51', in NE^NW^ sec. 6, T. 23 N., R. 1 W., on 

south shore of lake, 9 miles southwest of Bremerton. Datum of gage is 491.5 feet above 

mean sea level.

Records availaole.--March 1945 to September 1950 (fragmentary).

Extremes. liMb^FO : Maximum gage height observed, 9.10 feet Dec. 29, 1945; minimum ob^

 served, 5.74 feet Sept. 16, 1949.

Remarks. Gage read occasionally. No diversion or regulation.

Kevlsions (water years). W 1152: 1945-48.

Gage height, in feet, 1949-50

Oct.

Nov.

Dec.

Mar.

10

W

22

1

3

6.02

6.05

7.18

8.18

8.18

Apr.

May

June

Aug.

Sept

6

17

29

9

20

7.67

7.37

6.96

6.46

6.11
TAHUYA RIVER BASIN 53

Panther Creek near Bremerton, Wash.

Location. Water-stage recorder, lat. 47°31'40", long. 122°52iOO", in NWi; sec. 31, T. 

Si4 H., R. 1 W., half a mile downstream from Panther Lake and 11 miles west of Bremerton. Datum of gage is 486 feet above mean sea level (by closed stadia traverse).

Drainage area.--1.0 square mile.

Records available.--June 1945 to September 1950.

Extremes.--Maximum discharge during year, 84 second-feet Nov. 26 (gage height, 2.50 feet); 

no flow for many days.

1945-50: Maximum discharge, 199 second-feet Feb. 22, 1949 (gage height, 3.02 feet); 

no flow at times each year.

Remarks.--Records good except those below 0.5 second-foot or above 15 seccnd-feet, which 

are fair, and those for periods of no gage-height record, which are pocr. No diversion. 

Natural regulation by Panther Lake.

Rating tables, water year 1949-50, except period of Ice effect

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Nov. 26, 27, Jan. 21-24)

Oct. 1 to Dec. 6

.9 

1.0 

1.2

.8

3.2

1.6 

1.9

7.9

15.5

34

1.4

1.6

1.9

2.2 30

Hote. Same as

feet. 

charge, in second-feet, water year October 1943 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

 

Nov .

0

0

0

0

0

0

0

0

0

0

.2

4.7

3.7

3.0

1.8

1.2

.9

.7

.6

.5

.5

.6

1.3

2.1

4.3

29

30

18.5

14

12.5

Dec

*17.5

21

14.5

12.5

9.9

7.9

els

5.4

4.7

3.9

3.5

3.0

2.8

2.5

2.4

2.4

2.8

3.0

2 .8

2.4

Jan.

9.1

b7.2

b6

b5

b5.2

4.7

4.5

4.3

4.1

4.7

4.5

4.3

4

3.7

3.5

3.2

3

3.3

4.1

13

2.2 28

2.1

4.5

6.2

6.0

5.7

8.4

14

13

12

26

16

*12

10

8

6.5

5.5

4.8

Feb Mar

3.8 9.9

3.6 8.8

4 12.5

4.5

5

6

7

8

9

10

11

16

18

21

21

16

13

11

10

8

7

7

8

9.5

17

16

14

12

_

4.3

11 | 4

Month

October .......... ............

November .............. .....

December . . ..... ........ ...

Calendar year 1949 . . ......

January ........ . . . .... ....

February ... , . ........

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

April ......... . . . .........

Hay . ............ ....... . .

June .............. ...........

July ................ ......

August ............ . . .... .

September . . ................ .

Water year 1949-50 . . ......

-

Secondfoot-days

0

130.0

'

1,066.1

226.5

296.4

284.9

91.8

18 . 1

2.8

0

0

0

1,267.1

15

19

14.5

12

10.5

9.1

7.9

6.8

6.0

5.2

Apr.

4.5

3.9

3.S

3.0

2.8

2.5

2.4

2 1

2 .0

1.7

l.S

2.5

2.7

4.7 2.5

4.3

5.2

8.4

10.5

12.5

11.5

10.5 |

4.3

6.0

6.5

5.4

4.7

4.1

3.7

11 3.2

10.5

10.5

3.1

2.7

2.5

2.2

8.4 1 2.0

7.9

6.8

6.0

5.2

4.7

Maximum

0

30

21

132

28

21

19

6.5

1.4

.2

0

0

0

30

1.8

1.7

1.6

l.b

-

May

1.4

1.3

1.2

1.1

1.0

1.0

.9

.8

.8

.7

.7

.6

.6

5

Is

.4

.4

.5

.4

.4

.4

_4

June

0.2

Is

.3

.3

_2

.2

12

.2

2

.1

.1

0

0

'o t 0

Minimum

0

0

2.1

0

3

3.6

4.3

1.5

.2

0

0

0

0

0

Mean

0

4.33

6.99

2.92

7.31

10 .6

° 19

sloe

580

.090

0

o

0

3.47

July Aug Sept .

1

Per 

square 

mile

0

4.33

6.99

2.92

7.31

10.6

9 19

sloe

.580

.090

0

0

0

3.47

Runoff

Inches Acre-feet

0 0

4.63 258

B.06 430

39.66 2,120

8.42 449

11.02 588

10.60 565

3.41 182

.67 36

.10 5.

0 0

0 0

0 0

47.11] 2,510

Peak discharge (base. 20 sec.-ft.). Nov. 26 (9:30 p.m.) 84 sec.-ft.; Dec. 1 (11:3O p.m.) 26 sec.- 

ft.; Jan. 22 (5:30 a.m.) 36 sec.-ft.; probably Feb. 14 or 15 (time unknown) 26 sec.-ft.; Mar. 5 

(7:30 a.m.) 21 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation, affected by Ice.

Note. No gage-height record Jan. 13-19, Jan. 25 to Feb. 26; discharge computed on basis of recorded range In stage and records for nearby streams.
54 DEWATTO CREEK BASIN

Dewatto Creek near Dewatto, Wash.

Location.--Water-stage recorder, lat. 47°28'10", long. 123°01'30", in sec. 23, T. 23 N., 

R. 3 W., lj miles upstream from mouth and 2 miles northeast of Dewatto.

Drainage area. 17.6 square miles.

Records available. July 1947 to September 1950.

Extremes.--Maximum discharge during year, 1,630 second-feet Nov. 27 (gage height, 6.75 

feet), from rating curve extended above 780 second-feet; minimum, 9.6 second-feet 

Sept. 22 (gage height, 1.62 feet).

1947-50: Maximum discharge, that of Nov. 27, 1949; minimum, that of Sept. 22, 1950,

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

Rating tables, water year 1949-5O, except periods of shifting control 

(gage height, In feet, and discharge. In second-feet)

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

2.1

2.2 

2.4 

2.7

67

109

3.0 

3.3 

3.6 

4.0

160

221

295

410

4.5 

5.0 

5.5 

6.0

580

780

980

1,230

1.6 

1.8 

2.0 

2.2 54

2.4 

2.7 

3.0 

3.3

117

169

232

3.6

4.0 

4.5 

5.0

304

414

580

780

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

15.5 

15.5 

15.5 

18 

20

16.5 

16.5 

15.5 

18 

17

19.5 

16.5 

14 

14 

14

13 

13 

13 

13.5 

14

13.5 

13 

13 

13 

13

13.5 

16.5 

33

22

17 

15

Nov.

15 

14

15 

15 

15

15 

15 

23 

29 

28

143 

239 

193 

164 

112

77 

59 

50 

41 

35

32 

45 

62 

65 

97

573 

1,040 

369 

199 

147

Dec.

234 

380 

219 

146 

112

90 

75 

63 

56 

48

43 

41 

39 

.37 

37

36 

52 

52 

48 

39

37 

36 

86 

130 

120

104 

176 

433 

410 

254 

179

Jan.

135 

106 

87 

76 

68

72 

72 

66 

63 

72

68 

61 

54 

a50 

a45

a42

a41 

41 

71 

214

740 

780 

414 

239 

160

127 

106 

91 

82 

a? 8 

a72

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

ffa

mber ......................

lendar year 1949 

ary

"uary

h .....................

ember .....................

ter year 1949.50 ..........

Feb.

a68 

a65 

a63 

a61 

a6o

123 

143 

260 

241 

204

183 

202 

444 

357 

475

444 

284 

212 

183 

160

145 

140 

154 

191 

318

524 

299 

195

Secondfoot-days

495 

3,926 

3,812

23,505.0

4,393 

6,198 

5,110 

2,273 

1,146 

704 

532.5 

454.5 

361.5

29,405.5

Peak discharge (base. 350 sec. -ft.). Nov

sec. -ft. ; Dec. 28 (8 p.m.) 528 sec. -ft.,- Ja

Mar.

147 

140 

221 

330 

348

267 

183 

152 

136

117

104 

94 

87 

80 

82

116 

175 

217 

279 

214

187 

181 

173 

195 

177

152 

143 

120 

106 

96 

91

Maximum

33

1,040 

433

1,330

780 

524 

348 

154 

51 

28 

20 

20 

17.5

1,040

Apr.

84 

78 

72 

68 

67

66 

63 

60 

58 

56

61 

83 

70 

68 

120

138 

154 

120 

99 

85

75 

71 

66 

61 

58

57 

59 

54 

52 

50

May

51 

49 

46 

46 

44

44 

43

42 

41 

40

39 

38 

37 

36 

36

36 

37 

39 

36 

34

33 

32 

32 

31 

30

30 

30 

29 

29 

28 

28

Minimum

13 

14 

36

13

41 

60 

80 

50 

28 

19.5

12is 

10

10

June

27 

26 

25 

25 

25

27 

28 

26 

25 

25

24 

24 

24 

24 

24

23 

23 

23 

22 

22

22 

22 

22 

23 

22

21 

20 

21 

19.5 

19.5

Mean

16.0 

131 

123

64.4

142 

221 

165 

75.8 

37.0 

23.5 

17.2 

14.7 

12.0

80.6

July

19 

19 

18 

18 

17.5

17.5 

18 

19 

19 

18

17.5 

17 

17 

17

17

17 

16.5 

16.5 

16.5 

16.5

16 

16 

15.5 

15.5 

15.5

15.5 

16 

20 

18 

17 

16

Per 

square 

mile

0.909 

7.44 

6.99

3.66

8.07 

12.6 

9.38 

4.31 

2.10 

1.34 

.977 

.835

4.58

Aug.

15.5 

15.5 

15.5 

15.5 

15.5

15.5 

15.5 

14.5 

14 

14

14 

14 

14 

16 

20

18 

15.5 

14.5 

14 

14

13.5 

13.5 

14.5 

16 

14

13.5 

13 

13 

13 

13 

12.5

Sept.

12 

12 

12 

12.5 

12.5

12 

11.5 

11.5

11.5 

11.5

11.5 

11 

11 

11 

11.5

11 

11 

12 

11

11

10.5 

10 

10.5

17 

17.5

17 

13 

12 

11.5 

11.5

Runoff

Inches

1.05 

8.30 

8.06

49.69

9.28 

13.10 

10.80 

4.81 

2.4? 

1.43 

1.13 

.93 

.73

62.15

Acre-feet

982 

7,790 

7,560

46,630

8,710 

12,290 

10, 140 

4,510 

2,270 

1,400 

1,060 

901 

717

58,330

. 27 (1:30 a.m.) 1,630 sec. -ft. ; Dec. 2 (6 a.m.) 440 

., i. 22 (6 a.m.) . 880 sec. -ft. j Feb. 15 (6:30 p.m.) 600

sec.-ft.j Feb. 26 (5 a.m.) 600 sec.-ft.; Mar. 5 (3 p.m.) 371 sec.-ft.

a No gage-height records discharge computed on basis of records for nearby streams.

Note. Shifting-control method used Oct. 1 to Nov. 26, Dec. 28 to Jan. 13, Jan. 18-21, Aug. 21 to 

Sept. 30.
DOGFISH CREEK B^SIM 55

Dogfish Creek near Poulsbo, Wash.

Location. Water-stage recorder, lat. 47°45 I 10", long. 122°38 ! 30", in SWi~ sec. 11, T. 26 

N., K. 1 E., half a mile upstream from mouth and 1 mile north of Poulsbo.

Records available.--July 1947 to September 1950.

Extremes.--Maximum discharge during year, 109 second-feet Jan. 21 (gage height, 4.81 feet); 

minimum, 2.7 second-feet Sept. 1.

1947-50: Maximum discharge, 265 second-feet about Feb. 22, 1949 (gage height, 9.82 

feet, from high-water mark on gage house), by contracted-opening method; minimum, 1.8 

second-feet Aug. 13, 1947 (gage height, 0.64 foot).

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

Small diversion for irrigation. No regulation.

Revisions (water years).--W 1122: 1947(M).

Discharge, in. second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

.8 

.8 

.8 

.9 

.2

.S 

'. .7

< is

.4

.7 

.4 

.4 

.4 

.5

.5 

.5

.4 

.4 

.4

.4 

.5 

.5

' 5 

^ . 3

.2 

.3 

.2 

.5 

.3 

.2

Nov

4.2 

4.3 

4.3 

4.2

4.2

4.2 

4.2 

5.0 

7 .8 

6.7

23 

19.5 

10 

7.4 

6.1

4.8 

4.3 

3.7 

3.6 

3.5

3.4

6.7 

6.3 

6.4 

10

3S 

26 

10 

8.3 

8.6

Dec.

24 

21 

10 

7.6 

6.7

6.3 

6.1 

6.0 

6.0 

5.8

5.7 

6.4 

6.5 

6.0 

5.8

7.0 

11 

9.6

7.1

6.3

6.0 

S.O 

14 

20 

12.5

12.5 

11 

16 

IS 

13 

14.5

Jan.

11.5 

8.3 

7.4 

7.0 

6.8

6.8 

10.5 

9.4 

8.8 

9.2

17 

9.9 

7.7 

6.4 

6.0

5.6 

5.3 

5.0 

5.6 

48

73 

60

30 

25 

21

18 

17 

15 

14 

13.5 

13

Feb.

12 

11.5 

11 

13 

14

16 

17 

29 

28

26

24 

27

58 

45 

62

42 

30 

22

17 

14

13

12 

13 

13.5 

39

38 

22

17.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu

Sept

Wa

lender year 1343

ter year 1949-50 .......................

Peak discharge (base, 70 sec. -ft.). Nov.

Mar.

15 

14.5 

19.5 

22 

53

25

19 

16.5 

15 

13.5

12.5 

11.5 

11.5 

10.5 

9.7

11 

26 

31 

24 

17.5

17 

15.5 

19.5 

16.5 

14

14.5 

13.5 

11.5 

10.5 

10 

9.4

Apr

8.6 

8.8 

9.2 

8.2

7.8

7.6 

7.7 

6.0 

5.3

8.0 

16.5 

9.2 

8.2 

8.8

8.8 

8.3 

7.4

6.8 

6.5

6.1 

6.3

6.7 

6.0 

5.8

5.7 

5.8 

5.4 

5.2

4,8

Secondfoot -days

137.9 

258.7 

311.4

2,940.3

501,7 

686.5 

530.1 

220.4 

139.8 

104.4 

98.5 

98.3 

99.0

3,186.7

26 (9 p.m.)

May

4.9 

4.7 

4.7 

4.7

4.8

4.5 

4.5 

4.7 

4.7 

4.7

4.7 

4.5 

4.5 

4-7 

4.8

4.7 

4.8 

4.9 

4.7 

4.5

4.5 

4.4 

4.3 

4.2

4.1

4.2 

4.2 

4.2 

4.1 

4.1 

3.8

Maximum

5.2 

38 

24

150

73 

62 

53 

16.5 

4.9 

4.0 

4.2 

3.8 

4.3

73

8O sec. -ft.

June

3.8 

3.7 

3.7 

3.6 

3.6

3.8 

4.0 

3.7 

3.7 

3.6

3.6 

3.5

3,6 

3.6 

3.6

3.3 

3.4 

3.4 

3.3 

3.2

3.3 

3.5 

3.7 

3.4 

3.3

3.2 

3.2

3.1 

3.0 

3.0

July

3.0 

3.0 

2.9 

2.9 

2.9

2.9 

3.0 

3.1 

3.1 

3.1

3.1 

3.0 

3.0 

3.0 

3.1

3.0 

3.0 

3.0 

4.2 

3.5

3.4 

3.3 

3.3 

3.2 

3.2

3.3

3.4 

3.6 

3.4 

3.3 

3.3

Minimum

3.8 

3.4

5.7

2.7

5.0 

11 

9.4 

4.8 

3.8 

3.0 

2.9 

3.0 

2.9

2.9

Aug.

3.2 

3.3 

3.3

3.3

3.4

3.4 

3.4 

3.3 

3.2 

3.2

3.1 

3.1 

3.2 

3.3

3.8

3.2

3.1 

3.0 

3.0 

3.0

3.0 

3.0 

3.1 

3,2

3.1

3.1 

3.0

3.0 

3.0 

3.0

3.0

Mean

4.45 

e.62 

10.0

8.06

16.2 

24.5 

17.1 

7.35 

4.51 

3.48 

3.18 

3.17 

3.30

8.73

Jan. 21 (2 a.m.) 109

Sept.

2.9 

2.9

3.0 

3.2 

3.1

3.1 

3.1 

3.1 

3.1 

3.1

3.1 

3.1 

3.1 

3.2 

3.2

3.2 

3.2 

3.2 

3.2 

3.2

3.2 

3.2 

3.5 

4.0 

4.3

4,0 

3.8 

3.7 

3.6 

3.4

Runoff in 

acre-feet

274 

513

618

5,840

995 

1,360 

1,050 

437 

277 

207 

195 

195 

196

6,320

sec .-ft.;

probably Feb. 13 or 15 ttime unknown) 77 sec.-ft.; Mar. 5 (6 a.m.) 73 sec.-ft.

Note. No gage-height record Jan. 15-18, Jan. 24 to Feb. 22; discharge computed on basis of recorded range in stage and records for nearby streams.

238382 O - 53 - 5
56 CHICO CREEK BASIN

Kitsap Lake near Bremerton, Wash.

Location.--Staff gage, lat. 47°34'40", long. 122°42'30", in SW£ sec. 8, T. 24 N., R. 1 E. 

on west shore 100 feet from outlet and 2 miles west of Bremerton.

Records available. June 1947 tc September 1950 (fragmentary), discontinued.

Extremes.--Maximum gage height observed during year, 2.27 feet Feb. 17; minimum observed, 

 U.Hb foot Aug. 11, Sept. 19, 22.

1947-50: Maximum gags height observed, 2.77 feet Feb. 25, 1949; minimum observed, 

0.80 foot Aug. 15, 26, 29, Sept. 2, 5, 1947, Sept. 14, 1949.

Remarks.- Gage read twice weekly. No diversion or regulation.

Gage height, In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

e

7

s

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

_

-

0.94

-

_

.93

_

-

1.10

_

1.10

-

_

1.10

-

1.09

1.00

_

_

i.oo

_

1.09

_

_

-

Nov.

1.05

-

1.04

_

1.27

-

1.58

_

_

1.57

-

_

1.54

-

_

1.56

_

1.58

-

_

_

1.98

-

Dec.

1.97

-

-

1.95

1.94

-

_

.

1.93

-

1.93

_

_

_

1.9Z

_

1.94

-

1.98

1.98

 

Jan.

_

1.90

_

-

1.94

_

1.9Z

_

_

1.89

.

1.69

1.49

-

_

_

Z.04

2.02

"

_

1.74

Feb.

_

_

1.74

_

-

.

1.75

.

1.74

_

.

_

2 .26

.

2.27

_

-

1.86

_

1.81

_

1.84

_

-

Mar.

-

1.90

_

-

1.94

_

1.34

_

_

_

1.93

_

1.94

_

-

1.95

_

1.97

_

1.94

_

1.95

Apr.

_

-

1.52

1.53

-

_

1.51

-

-

1.51

_

1.52

-

_

_

1.61

_

-

1.60

-

_

_

1.48

_

1.44

_

_

-

May

_

1.38

-

1.36

_

-

1.32

-

-

1.30

-

_

-

1.17

-

_

1.17

-

_

-

1.16

_

-

1.15

_

_

1.10

-

June

_

1.10

-

_

-

1.09

1.08

-

_

-

1.01

_-

.98

:-

1.09

_

-

1.10

-

_

1.00

_

_

1.00

-

July

.

-

-

0.98

-

-

.98

-

"

"

.94

~

.92

-

-

.92

.90

-

-

.89

_

-

.89

_

1

Aug.

0.89

-

-

.88

.88

"

.86

-

.98

-

-

.94

-

-

_

.90

-

.89

_

-

-

.88

:

Sept.

0.87

-

-

-

.89

-

.89

-

-

-

.90

-

.90

-

-

-

.86

-

-

.86

-

-

-

_

.96

-

.96

-

-
CHICO CREEK BASIN 57

Chico Creek near Bremerton, Wash.

' Location.--Water-stage recorder, lat. 47°35'30", long. 122°42'30", at north line see. 8, 

T. 24 W., R. 1 E., half a mile downstream from Dickerson Creek and 2j miles northwest 

of Bremerton.

Drainage area. 15.7 square miles.

Records available.--July 1947 to September 1950 (discontinued).

Extremes.--Maximum discharge during year, 865 second-feet Nov. 26 (gage height, 4.13

feet), from rating curve extended above 170 second-feet; minimum not determined, probably occurred during period of no gage-height record in September.

1947-50: Maximum discharge, 1,640 second-feet (revised) Feb. 22, 1949 (gage height, 

5.40 feet), from rating curve extended above 170 second-feet; no flow Aug. 31 to Sept. 

6, 1947.

Revisions.--The maximum discharges for the water years 1948 and 1949 hive been revise'd to 738 second-feet Oct. 18, 1947 (gage height, 4.03 feet), and 1,640 second-feet 

Feb. 22, 1949 (gage height, 5.40 feet), superseding figures published In Water-Supply 

Papers 1122 and 1152, respectively.

Remarks.--Records good except those above 300 second-feet, which are fair, aid those for 

periods of ice effect or no gage-height record, which are poor. Several small diversions for irrigation and domestic use.

Revisions. Revised figures of discharges for water years 1948 and 1949, superseding thos_e 

published in Water-Supply Papers 1122 and 1152, are given herein.

Discharge, In second-feet, 1947-50 

1947-48

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.0

5.4

3.9

3.2

2.8

2.4

2.2

2.6

3.9

3.9

4.4

3.4

3.4

3.7

12.5

16.5

47

164

278

97

63

50

46

38

33

28

26

23

26

29

41

Nov.

74

67

57

47

40

36

32

28

26

24

21

19.5

19.5

19

20

18.5

18.5

18

16.5

16

14.5

13.5

13

12.5

12.5

12.5

14

14

12.5

13.5

-

Dec.

15.5

13.5

13.5

12.5

12

11.5

11.5

11.5

11

12

12.5

11.5

21

28

25

31

55

88

76

62

57

53

84

114

90

74

75

75

67

59

72

Jan.

250

304

203

188

147

146

153

147

124

151

142

114

89

76

65

58

51

46

42

39

36

35

33

32

29

28

26

25

25

25

23

Feb.

24

23

22

23

22

21

24

60

70

57

48

43

40

54

114

111

195

163

116

97

122

122

99

84

75

75

65

60

53

-

-

Mar.

52

47

44

41

40

38

38

38

36

34

33

32

31

30

28

28

27

28

26

25

100

196

111

86

82

67

60

54

49

46

42

Apr.

39

39

39

.39

39

42

44

41

44

53

51

48

46

43

41

39

38

37

36

34

32

32

32

34

42

39

38

36

34

32

May

31

28

48

52

49

68

62

54

46

43

40

46

65

72

60

50

46

41

37

36

32

32

29

28

26

25

24

36

36

34

32

June

30

27

24

23

22

19.5

18.5

18

16.5

15

16.5

17.5

18

17.5

15.5

14

13.5

13

12.5

13.5

13.5

13

12

11.5

11

10

9.7

9.4

9.0

8.6

July

8.3

7.9

7.2

7.9

7.6

8.6

8.3

7.9

7.2

6.6

6.3

6.3

6.0

6.0

5.8

5.8

5.5

5.5

5.8

5.8

5.8

5.5

5.2

4.6

4.3

4.3

4.3

4.3

4.3

3.9

3.7

Aug.

3.7

3.7

3.9

3.9

4.1

4.3

4.3

3.9

3.9

3.9

3.7

3.7

3.9

3.9

4.3

3.9

3.7

3.5

3.5

3.3

3.5

3.5

3.3

3.7

3,7

3.1

3.1

3.3

3.1

3.1

2.9

Sept.

2.5

2.5

2.7

2.5

2.3

2.2

2.2

2.0

2.0

2.0

2.0

2.0

1.9

2.3

12.5

6.9

5.8

5.2

4.6

4.1

5.2

5.8

5.2

6.0

6.0

10.5

12

14

12.5

10.5

Peak discharge (base, 150 sec. -ft .) .--Oct. 18 (11 p.m.) 738 sec. -ft. j Jan. 1 (7:30 p.m.) 542 sec.

ft. 5 Feb. 17 (12:30 p.m.) Z08 sec. -ft.} Mar. 22 (l2:30 a.m.) 310 see. -ft.
58 CHICO CREEK BASIN

Discharge, in second-feet, of Chlco Creek near Bremerton, Wash., 1947-50 Continued

1948-49

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.7

9.0

8.6

9.4

8.6

9.0

10

9.0

8.3

9.7

11

9.7

9.0

9.0

8.6

7.6

7.2

6.9

6.6

6.3

6.0

5.8

5.8

5.5

5.8

5.5

5.2

6.3

6.0

6.6

7.6

Nov.

6.9

12

18

15

16

13

12

10.5

10.5

10.5

10.5

9.7

9.4

28

44

109

86

61

60

50

42

36

38

38

40

37

51

213

128

161

Dec.

213

300

176

129

109

92

95

82

80

84

84

80

73

68

61

56

50

46

50

58

52

50

48

45

42

39

36

36

52

66

103

Jan.

109

89

74

65

60

55

56

57

52

48

45

41

39

36

35

32

31

28

28

26

26

25

24

24

a23

a23

a22

a21

a20

a20

a!9

Feb.

a!8

a!8

a!8

a!8

a!7

a!9

a!7

a20

a45

alOO

a70

a54

a47

42

39

122

390

188

119

95

494

1,250

725

391

a230

a!50

allO

a85

_

-

Mar.

a75

a65

a58

a55

a52

a48

a43

a40

a37

a35

a34

a32

a31

a30

a31

a34

36

37

72

95

102

91

77

59

57

52

48

44

44

42

38

Apr.

37

35

31

30

27

26

25

24

23

22

20

19.5

18.5

17.5

17.5

17

16

16

17

17.5

17.5

19.5

23

22

21

18.5

17.5

19.5

18.5

17

May

27

36

31

29

26

23

22

18.5

16

14.5

12.5

11

10

9.5

8.9

12

14

13.5

12.5

12

11.5

12

12

11.5

11

9.5

8.9

8.3

7.9

7.9

7.5

June

7.1

7.9

7.5

7.1

6.7

6.3

5.9

6.3

7.9

7.9

7.5

7.1

6.7

5.9

5.9

5.5

5.1

4.7

4.3

4.3

4.1

4.1

3.8

3.6

3.6

3.6

3.6

3.4

3.6

3.6

July

3.4

3.2

2.9

3.2

2.9

2.7

2.7

2.5

2.F

2.f

2.f

2.f

2.?

2.C

1.8

1.7

1.7

1.8

1.7

1.8

1.8

1.8

2.5

2.2

2.0

2.5

2.7

2.2

2.0

1.8

1.7

Aug.

1.7

1.7

1.7

1.4

1.4

1.4

1.4

1.2

1.2

1.1

1.1

1.1

1.0

1.0

1.0

1.0

.9

.8

.8

.8

.8

1.0

1.0

1.0

1.1

1.1

.9

.8

.7

.7

.7

Sept.

0.7

.6

.6

.5

.5

.5

.5

.4

.4

.4

.5

.2

.2

1.1

3.2

2.2

1.5

1.5

1.7

1.5

1.4

1.2

1.1

1.0

1.0

1.0

.9

.8

.9

.9

-

Peak discharge (base. 150 see.-ft.). Nov. 28 (5:30 a.m.) 266 sec.-ft.} Dec. 2 (12:10 a.m.) 488 

sec.-ft.i Feb. 10 (time unknown) 161 sec.-ft.; Feb. 17 (1 a.m.) 750 sec.-ft.) Feb. 22 (3 a.m.) 

1,640' sec.-ft.

a No gage-height record) discharge computed on basis of recorded range in stage and records for 

Blackjack Creek at Port Orchard.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.9

.9

1.0

1.8

3.6

2.9

2.2

1.8

2.9

3.4

5.1

3.4

2.7

2.5

2.5

2.5

2.2

2.0

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

2.7

S.3

5.5

4.3

4.1

Nov.

3.8

3.6

3.4

3.2

2.9

2.9

3.2

4.7

6.3

6.7

53

88

77

57

38

27

19.5

19.5

16

14.5

14

17.5

23

24

53

301

373

161

138

116

Dec.

175

183

138

98

80

65

61

51

48

42

39

37

35

33

33

32

41

40

37

35

33

33

59

67

65

60

76

181

150

123

105

Jan.

84

71

63

59

52

57

59

55

51

60

56

50

47

44

40

38

36

b33

*b38

204

437

410

221

150

111

95

78

67

58

b51

b44

Fab.

b39

b36

b32

b40

44

74

75

120

123

116

110

130

287

219

309

237

163

128

112

94

82

74

*78

85

125

191

143

120

_

-

Mar.

91

85

123

197

249

189

142

120

101

88

79

70

64

60

58

65

89

116

156

127

111

111

105

106

95

91

88

79

70

64

59

Apr.

56

51

47

43

42

40

38

35

34

33

35

49

44

42

59

68

74

64

58

53

47

44

39

36

35

33

34

51

£9

28

-

May

27

25

24

24

24

24

22

21

20

19.5

18.5

18

17

16.5

16

16

17

18

16

15.5

15

14

13.5

13.5

12.5

12

11.5

11.5

11

10

9.8

June

9.4

8.8

8.4

8.4

8.4

9.4

9.4

8.8

8.4

8.1

7.8

7.5

7.5

7.5

7.2

6.9

6.6

6.3

6.1

6.1

6.1

5.8

5.8

5.8

5.6

5.3

5.3

5.3

5.0

5.0

-

July

5.0

4.6

4.3

4.3

4.1

4.1

4.1

4.1

3.9

3.8

3.6

3.5

3.5

3.5

3.5

3.5

3.3

3.2

3.1

3.1

3

2.9

2.8

2.7

2.7

2.7

3

3.5

3

2.6

2.5

Aug.

2.4

2.4

2.4

2.4

2.4

2.4

2.2

2.1

2

2

2

2

2

2.7

7.8

4.8

3

2.3

2

Z

1.9

1.9

2.5

3.5

2.2

2

1.8

1.8

1.8

1.8

1.7

Sept.

1.6

1.5

1.5

1.6

1.6

1.5

1.4

1.3

1.3

1.3

1.3

1.2

1.2

1.2

1.3

1.2

1.1

1.2

1.1

1

1

1

1.3

3

3.5

3

2.6 § *

2.2

2

-

Peak discharge (base, 150 sec. -ft.) . Nov. 26 (11 p.m.) 865 sec. -ft. ; Dec. 2 (12:30 a.m.) 269 see.

ft.) Dee. 28 (2:30 p.m.) 244 sec. -ft.) Jan. 21 (2 a.m.) 630 sec. -ft. t Feb. 13 (9:30 a.m.) 340 seo.-

ft.; Feb. 15 (6:30 p.m.) 352 sec. -ft.) Feb. 26 (5:30 a.m.) 221 sec. -ft.) Map. 5 (9:3? a.m.) 282 sec.

ft.) Mar. 19 (11:30 a.m.) 169 sec. -ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record July 10 to Aug. 14, Aug. 17 to Sept. 30) discharge co-nputed on basis

1 2 discharge measurement!}, 2 staff-gage readings, and records for nearby streams.
CHICO CREEK BASIN 

Monthly discharge, In second-feet, of Chioo Creek near Bremerton, Wash., 1947-50

59

Month

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

April.........................

May...........................

July..........................

Maroh.........................

April... ......................

Mav

July..... .....................

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

April.........................

May...........................

July..........................

Secondfoot-days

1,070.2 

750 

1,354.5

-

2,852 

2,082 

1,589 

1,183 

1,308 

472.7 

186.5 

113.3 

157.9

13,119.1

239.3 

1,376.0 

2,555

14,114.7

1,253

4,891 

1,594 

650.5 

466.9 

164.6 

71.1 

33.5 

28.9

13,323.8

83.6 

1,670.7 

2,255

13,162.8

2,919 

3,386 

3,248 

1,321 

533.3 

212.0 

107.5 

76.2 

48.4

15,860.7

Maximum

278 

74 

114

1

r 304 

195 

196 

53 

72 

30 

8.6 

4.3 

14

304

11 

213 

300

304

r 109

1,250 

102 

37 

36 

7.9 

3.4 

1.7 

3.2

1,250

8.3 

373 

183

1,250

437 

309 

249 

74 

27 

9.4 

5.0 

7.8 

3.5

437

Minimum

1.0 

12.5

11

-

23 

21 

25 

32 

24 

8.6 

3.7 

2.9 

1.9

1.0

5.2

6.9 

36

1.9

19 

17 

30 

16 

7.5 

3.4 

1.7 

.7 

.2

.2

.9 

2.9 

32

.2

33 

32

58 

28 

9.8 

5.0 

2.5 

1.7 

1

.9

Mean

34.5 

25.0

43.7

-

92.0 

71.8 

51.3 

39.4 

42.2 

15.8 

6.02 

3.65 

5.26

35. B

7.72 

45.9 

82.4

38.6

40.4 

175 

51.4 

21.7 

15.1 

5.49 

2.29 

1.08 

.96

36.5

2.70 

55.7 

72.7

36.1

94.2

121 

105 

44.0 

17.2 

7.07 

3.47 

2.46 

1.61

43.5

Per 

square 

mile

2.20 

1.59 

2.75

-

5.86 

4.57 

3.27 

2.51 

2.69 

1.01 

.383 

.232 

.335

2.28

.492 

2.92

5.25

2.46

2.57 

11.1 

3.27 

1.38 

.962 

.350 

.146 

.069 

.061

2.32

.172 

3.55 

4.63

2.30

6.00 

7.71 

6.69 

2.80 

1.10 

.450 

.221 

.157 

.103

2.77

Runoff

Inctns

2.54 

1.78 

3.21

-

6.76 

4.93 

3.76 

2.80 

3.10 

1.12 

.44 

.27 

.37

31.08

.57 

3.26 

6.05

33.43

2.97

11.59 

3.78 

1.54 

1.11 

.39 

.17 

.08 

.07

31.58

.20 

3.96 

5.34

31.20

6.91 

8.02 

7.69 

3.13 

1.26 

.50 

.25 

.18 

.11

37.55

Aore-feet

2,120 

1,490 

2,690

-

5,660 

4,130 

3,150 

2,350 

2,590 

938 

370 

225 

313

26,030

475 

2,730 

5,070

28,000

2,490 

9,700 

3,160 

1,290 

926 

326 

141 

66 

57

26,430

166 

3,310 

4,470

26 , 100

5,790 

6,720 

6,440 

2,620 

1,060 

420 

213 

151 

96

31,460
60 CHICO CREEK BASIN

Wildcat Lake near Bremerton, Wash.

Location.--Staff gage, lat. 47°36'00", long. 122°45'50", in 3Ei sec. 2, T. 24 N., R. 1 W. 

on north shore, 1,000 feet from outlet and 5 miles west of Bremerton.

Records available. June 1947 to September 1950 (fragmentary).

Extremes. Maximum gage height observed during year, 7.08 feet Jan. 22; mirimum observed,

1947-50: Maximum gage height observed, 7.20 feet Feb. 24, 1949; minimum observed, 

3.94 feet Aug. 27, 28, Sept. 1,4, 1947.

Remarks.--Gage read twice weekly. No diversion or regulation.

Gage height, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

4.22

-

-

-

4.35

_

4.34

_

4.38

_

-

4.38

_

_

4.34

4.34

4.34

-

_

4.44

4.44

Nov.

_

_

4.42

-

-

4.42

_

_

_

4.58

4.78

5.14

_

-

4.92

_

_

4.80

_

_

4.82

-

6.20

_

5.84

-

Dec.

_

5.80

-

5.54

-

.

_

5.10

_

-

4.90

_

_

4.84

_

_

4.84

-

4.84

4.90

_

6.16

-

_

5.64

-

Jan.

5.48

_

-

_

5.30

.

_

5.10

_

-

5.08

_

_

5.20

_

_

5.20

5.31

6.36

7.08

_

_

- «

6.20

_

6.20

-

Feb.

_

5.34

-

-

5.34

_

.

_

5.80

5.68

_

_

-

6.70

_

_

5.82

_

5.36

5.34

-

5.82

_

_

_

-

Mar.

_

5.60

-

_

6.02

.

_

_

5.60

-

5.28

_

_

-

5.14

_

5.62

_

5.62

_

-

5.62

_

_

5.62

Apr.

_

5.10

_

5.04

-

5.04

_

4.96

_

5.04

-

5.10

5.18

5.10

_

4.96

-

4.90

_

_

4.86

May

_

_

_

4.80

-

4.78

_

-

4.72

_

4.68

4.68

4.64

-

4.62

_

_

4.60

_

4.58

_

-

June

4.56

_

_

4.54

-

_

4.54

_

-

4.58

_

_

4.56

_

4.55

-

4.46

_

4.48

4.48

_

_

4.46

July

.

4.40

-

_

-

4.38

_

4.38

_

4.34

-

4.30

_

_

4.34

_

4.30

_

-

4.28

_

_

4.26

Aug.

.

_

4.24

-

-

4.22

4.22

_

4.22

_

4.20

-

4.30

_

4.28

_

_

4.24

-

4.20

_

_

_

4.18

Sept.

.

4.20

-

-

_

4.18

_

_

4.18

_

_

4.16

_

4.16

4.16

4.14

_

4.22

-

_

4.20

_

-
BLACKJACK CREEK BASIN 61

Blackjack Creek at Port Orchard, Wash.

Location. --Water-stage recorder, lat. 4V°32'80", long. ]22°3V'50", In SE£ sec. 26, T. 24 

N., K. 1 E., at Port Orchard, a third of a mile upstream from mouth.

Records available . July 1947 to September 1950 (discontinued).

Extremes. Maximum discharge during year, 213 second-feet Jan. 21, 22 (gage height, 3.00 

 i'eet); minimum, 8.0 secund-feet Oct. 3.

1947-50: Maximum discharge, 285 second-feet Feb. 22, 1949 (gage height, 3.62 feet); 

minimum, 0.7 second-feet July 25, Sept. 2, 3, 1947 (gage height, 1.38 feet).

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

wnicn are fair. Many small diversions for irrigation.

Discharge, in second-feet, water year October 1949 to September 1950

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

Oct.

8.4 

8.4 

8.4 

3.3 

12

11 

11. b 

10.5 

11.5 

11

13 

11 

9.9 

9.9 

9.9

3.9 

9.4 

8.9

8.9 

8.9

8.9 

8.9 

8.9 

3.9 

3.9

8.9 

12

18.5

12.5 

11

Nov.

10.5 

10.5 

10.5 

10.5 

10.5

10.5 

11 

12.5 

17

20

40 

53 

43 

31

16.5 

14.5 

14 

11 

12.5

IE 

15 

21

20 

31

59 

96 

59 

43 

38

Dec.

44

50 

37 

32 

30

28

26 

25 

24 

23

21 

23 

24

23

23

25

30 

28 

24

21 

23 

41 

45 

37

34 

53 

97 

73 

53 

50

Jan.

43 

35

20 

28 

E8

36 

48 

41 

36 

50

53 

39 

37 

a28

a24

a22 

a21 

a20 

a 90 

*a!20

192 

178 

108 

69 

a45

a35

331

a29 

327 

a2e 

a25

Feb.

a24 

a23 

a22 

a21 

b24

b27 

b25 

b26 

23 

39

48 

51 

87 

73 

73

65

51 

43 

40

*33 

31

37 

48 

67

74 

55

43

Month

Octo 

Move 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base, 130 see .-f t . ) . Jan

Mar.

38 

87 

150 

142

90 

63 

52 

47 

41

27 

34 

34

32 

31

42

68 

68

60

54 

58 

58 

56 

47

44 

45 

38

33 

32 

31

Apr.

32 

31 

30 

29 

28

28 

28 

27 

27

28 

45

3b

30 

45

47 

45 

32 

28 

25

24 

23

E3

22

21 

24

22 

21 

20

Secondfoot-days

341.7 

775 

1,086

7,337.4

1,594 

1,207 

1,724 

869 

554.5 

425.5 

340.4 

336.1 

303.2

9,556.4

o-l t ?

May

21 

20 

19.5 

19.5 

20

21 

19. E 

18.5 

18.5 

18.5

18.5 

18 

18 

18 

17

17

19.5 

21 

18.5 

18

17

16.5 

16.5 

15.5 

15

15

15.5 

15.5 

lfi.5 

16.5 

15.5

Maximum

32

96 

97

232

192 

87 

150 

47 

21 

15.5 

12 

18 

14

192

June

15.5 

15 

14.5 

14.5 

14.5

15.5

15.5

Is

15

15

14.5 

14 

14.5 

14.5 

14.5

14 

14 

14 

13 

13

14 

14 

15.5 

15 

14

14 

12.5 

12.5 

12 

12

July

12 

12 

11.5 

11.5 

11.5

11.5 

11.5 

11.5 

12 

11.5

11.5

11 

11 

11 

11

11 

11 

10.5

9.9 

11

10.5 

9.9 

9.9 

9.9 

9.9

9.9 

1C. 5 

12 

11 

11 

10.5

Minimum

8.4 

10.5 

21

7.6

20 

21 

31 

20 

15 

12 

9.9 

9.9 

9.4

8.4

213 sec. -ft.; Jan. 2L

Aug.

10.5 

10.5 

10.5 

10.5 

10.5

10.5 

10.5 

10.5 

9.9

9.9

9.9

9.9 

9.9 

10.5 

18

14.5

11.5 

11 

11 

10.5

10.5 

10.5 

11 

12 

11

10.5 

10.5 

9.9 

9.9 

9.9 

9.9

Mein

11.0 

25.8

35.0

20.1

51.4

43.1 

55.6 

29.0 

17.9 

14.2 

11.0 

10.8 

10.1

26.2

(5:30 a .m

Sept.

9.9 

9.9 

9.9 

9.9 

9.9

9.4

9.4 

9.4 

9.4 

9.4

9.4 

9.4 

9.4 

9.4 

9.4

9.4 

9.4 

9.4 

9.4 

9.4

9.4 

9.4 

9.9 

14 

14

13 

11.5 

11 

10.5 

a 10

Runoff In 

acre-feet

678 

1,540 

2,150

14,550

3,160 

2,390 

3,420 

1,720 

1,100 

844 

675 

667 

601

18,940

) 213 sec.-

day.
62 HURLEY CREEK BASIN

Burley Creek at Burley, Wash.

Location. Water-stage recorder, lat. 47°24'50", long. 122°37'50", in NE£ sec. 11, T. 22 

W., K. 1 E., at Burley, a quarter of a mile upstream from mouth.

Drainage area. 10.0 square miles.

Records available.--July 1947 to September 1950 (discontinued).

Extremes. Maximum discharge during year, 291 second-feet Mar. 3 (gage height, 4.53 

rest); minimum, 13 second-feet Sept. 11.

1947-50; Maximum discharge, that of Mar. 3, 1950; minimum, 11 second-feet July 

19-21, 1947.

Remarks.--Records good except those above 50 second-feet and those for periods of shifting 

control, which are fair. Several small diversions for domestic use above station. No 

regulation.

Discharge, in second-feet, water year October 1949 to September 195C

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

OCt.

14.5 

14.5 

14.5 

IS 

19.5

16 

16 

15.5 

17 

17.5

24 

17.5 

17 

16.5 

17

17 

16.5 

16

16 

16

16.5 

16.5 

16.5 

16.5 

16.5

17.5 

27 

73 

22 

19 

18

Nov.

17.5 

17.5 

17.5 

17.5

IS

18 

18 

20 

£4 

28

46 

79 

43 

34 

24

22 

21 

21 

21 

18.5

18.5 

35 

28 

34 

43

92 

98 

39 

34 

34

Dec.

43 

46 

27 

26 

25

23 

23 

22 

22 

22

21 

24

25 

23 

27

26 

33 

27 

23 

22

22 

23 

68

36 

39

32 

91 

111 

45 

41 

44

Jan.

35 

29 

26 

26 

27

59 

43 

35 

32 

74

37 

29 

24 

26 

25

24 

24 

24 

38 

138

146 

118 

52

36 

30

32 

31 

30 

29 

29 

28

Feb.

27 

27 

35 

58

67 

56 

103 

59 

49

41

68 

96 

50 

65

46

38 

34 

34 

32

32 

32 

52 

61 

101

65

40 

36

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mau

June 

July 

Augu 

Sept

Ha

lendar year 1949

h. ......................................

ter year 1949-50 .......................

Mar.

33 

46 

170 

136 

106

58 

46 

48 

44 

40

38 

37 

38 

35 

39

69 

99 

103 

78 

54

56 

65 

67 

53 

42

45 

43

34 

33 

35

Apr.

37 

34 

32 

31 

32

32 

31 

30 

30 

29

36 

60 

35 

32 

57

57 

38 

29

26

25 

26 

24

24 

24

24 

27 

24 

23 

23

Secondfoot -days

595.5 

981 

1,082

9,159

1,336 

1,412 

1,826 

958 

655 

543 

508 

521.5 

505

10,923

May

25 

24 

23 

23 

25

25 

23 

23 

22 

21

21 

21

20 

20 

20

20 

25 

24 

22 

21

20 

20 

19.5 

18.5 

18

19.5 

19.5 

18 

18.5 

18 

17.5

Maximum

73 

98 

111

160

146 

103 

170 

60 

25 

21 

21 

40 

29

170

June

17.5 

17.5 

17 

17.5 

18

21 

21 

18.5 

18.5 

18

18.5 

18 

18 

18 5 

18.5

17.5 

17.5 

18 

17.5 

18

18 

18 

20 

20 

18

17.5 

17 

17 

16.5 

16.5

July

16.5

16 

16 

16 

16.5

16.5 

16 

16.5 

17 

17

17 

16.5 

16 

16.5 

16.5

16.5 

16 

16 

16.5 

16

16 

16 

15.5 

15.5 

15.5

16 

16.5 

21 

17 

16 

15.5

Minimum

14.5 

17.5

21

14

24 

27 

33 

23 

17.5 

16.5 

15.5 

14.5 

14.5

14.5

Aug.

15.5 

16 

16.5 

16 

16.5

17 

17 

16.5 

16.5 

16

16 

16 

16 

16.5 

40

20 

17 

15.5 

14.5 

14.5

14.5 

15.5 

18 

18 

16.5

15.5 

15 

15 

15 

14.5 

14.5

Mean

19.2 

32.7 

34.9

25.1

43.1 

50.4 

58.9 

31.9 

21.1 

18.1 

16.4 

16.8 

16.8

29.9

Sept.

14.5 

15 

15.5 

16.5 

15.5

15.5 

15.5 

15 

15 

16

15.5 

15.5 

15.5 

15.5 

15.5

15.5 

15.5 

15 

15.5 

15

14.5 

14.5 

15 

29 

26

26 

20 

17.5 

17.5 

a!7

Runoff In 

acre-feet

1,180 

1,950 

2,150

18,180

2,650 

2,800 

3,620 

1,900 

1,300 

1,080 

1,010 

1,030 

1,000

21,670

Peak discharge (base. 200 see.-ft.). Mar. 3 (6 p.m.) 291 sec.-ft.

a No gage-height record; discharge computed on basia of records for Huge Creek near Wauna.

Note. Shifting-control method used Nov. 26 to Mar. 3, Apr.' 16 to June 22, July 1 t"> Aug. 15.
MINTER CREEK BASIN 63

Huge Creek near Wauna, Wash.

Location.--Water-stage recorder, lat. 47°23'20", long. 122°41'50", at north line sec. 20, 

T. 22 N., R. 1 E., an eighth of a mile upstream from mouth and 2| miles west of Wauna.

Drainage area.--5.5 square miles.

Records available.--July 1947 to September 1950.

Extremes.--Maximum discharge during year, 286 second-feet about Jan. 21 (gage height, 

3.S7 feet, from recorded range in stage); minimum, 3.2 second-feet Sept. 1.

1947-50: Maximum discharge, that of Jan. 21, 1950; minimum, that of Sept. 1, 1950.

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

no gage-height record, which are poor. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.5

4.5

4.5

4.5

4.5

4.8

4.8

5.1

5.1

4.8

6,

5.

5.

5.

5.

4.8

4.8

4.2

4.Z

4.2

4.2

4.Z

4.Z

4.Z

4.2

4.5

5.7

15

6.1

5.4

5.4

Nov.

5.1

5.1

5.1

4.8

4.5

4.8

4.8

5.1

5.4

6.1

10

16

1Z

9.Z

6.8

6.4

5.8

5.4

5.4

5.4

5.4

7.Z

8.1

8.6

1Z.5

22

57

37

27

23

-

Dec .

22

30

21

17.5

16

13.5

12

11.5

9.7

9.2

8.1

8.1

8.6

8.6

8.1

8.1

10

9.2

7.6

7.6

7.2

7.6

11.5

22

19

20

23

54

61

41

34

Jan.

28

20

17

15

14

15

16

14

13.5

25

22

16.5

12

9

8

7.5

7

7.5

9

40

200

140

80

40

30

25

21

18

16

15

14

Month

October .......................

November ......................

December ......... ............

Calendar year 1949 .........

January .......................

February . . ...................

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

April .........................

Mav way ...........................

June .................... ....

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

13

12.5

12

14

18

30

28

42

38

35

32

40

90

65

70

55

45

35

27

22

19.5

18.5

23

32

48

58

40

30

_

-

Secondfoot-days

158.9

341.0

546.7

3,616.0

915

992 5

1,204 '.5

421.5

255.7

209 . 6

172.1

139 5

129 '.0

5,486.2

Mar.

24

26

74

118

97

65

46

38

33

27

23

21

19

17.5

16.5

23

44

49

58

46

41

43

42

41

32

30

29

23

21

19

18.5

Maximum

15

57

61

90

200

9O

118

22

11

B.I

6.1

5.4

7.5

200

Apr.

17.5

16.5

15

14.5

14

13.5

13.5

13

12.5

12

12.5

17.5

14.5

13.5

19.5

22

21

17

15

13.5

13

12.5

12

11

11

11

11

11

11

10

May

11

10

9.7

9.7

10

9.7

9.2

9.2

9.2

8.6

8.1

8.1

8.1

7.6

7.6

7.6

8.1

8.1

8.1

7.6

7.2

7.6

7.6

7.2

7.2

7.2

7.6

7.6

7.2

7.2

6.8

Minimum

4.2

4.5

7.2

3.9

7

12

16.5

10

6.8

5.8

5.1

3.6

3.6

3.6

June

6.8

6.4

6.1

6.4

6.8

8.1

8.1

7.6

7.6

7.2

7.2

6.8

7.2

7.6

7.6

7.2

7.2

7.2

6.8

6.8

6.8

7.2

7.2

7.2

7.2

6.8

6.4

6.4

6.1

5.8

-

Mean

5.13

11.4

17.6

9.91

29.5

35.4

38.9

14.0

8.25

6 . 99

5.55

4.50

4.30

15.0

July

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

6.1

5.8

5.8

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.1

5.1

5.1

5.1

5.1

5.4

6.1

5.8

5.8

5.4

Per 

square 

mile

0.933

2.07

3.20

1.80

5.36

6.44

7.07

2.55

1.50

1.27

1.01

. 818

.782

2.73

Aug.

5.1

5.1

5.4

5.4

5.4

5.4

5.4

1.8

1.5

4.2

4.2

5.9

5.9

1.2

4^5

4.8

i.8

1.5

1.5

4.2

4.2

1.2

1.5

1.5

4.2

3.9

1.2

1.5

5.9

5.6

3.6

Sept.

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.9

3.6

3.6

3.9

3.9

3.9

3.9

4.2

4.2

4.2

4.2

4.5

4.2

4

4.5

4.5

5.5

7.5

6

5.1

4.9

4.8

4.8

-

Runoff

Inches

1.07

2.31

3.70

24,45

6.19

6.71

8.14

2.85

1.73

1.42

1.16

.94

.87

37.09

Acre-feet

315

676

1,080

7,170

1,810

1,970

2,390

836

507

416

341

277

256

10,870

Note. No gage-height record Jan. 3-8, Jan. 13 to Feb. 19, Sept. 17, 18, 20-26, 28} discharge computed en basis of recorded range in stage and records for Union River near Belfair. Shiftingcontrol method used Oct. 1-27, Dec. 30 to Sept. 30.
b4 DEER CREEK BASIN

Deer Creek near Shelton, Wash.

Location.--Water-stage recorder, lat. 47°16'00", long. 123°00'15", in Ntf£ sec. 36, T. 21 

N., H. 3 W., three-quarters of a mile upstream from mouth and 6 miles northeast of 

Shelton.

Drainage area. 13.6 square miles.

Records available.--December 1942 to September 1943, August 1948 to September 1950.

Extremes. Maximum discharge during year, 281 second-feet Mar. 5; maximum gage height, 

4.47 feet Dec. 28; minimum discharge, 18 second-feet Oct. 1-3.

1942-43, 1948-50: Maximum discharge, 386 second-feet Feb. 32, 1949 (gage height, 

5.13 feet); minimum observed, 16 second-feet Sept. 24, 25, 27-29, 1943.

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

No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 195O

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

Oct.

18

18

18.5

27

32

28

28

25

33

31

38

30

24

22

21

21

21

21

22

22

Z\

21

21

19.5

19

21

30

95

72

45

33

Nov .

29

28

27

26

27

27

27

35

40

50

88

120

127

116

86

62

48

43

40

39

36

49

63

71

86

145

240

188

135

103

Dec.

36

121

101

78

64

55

48

43

40

36

33

34

36

33

33

32

40

41

34

29

28

Jan. I Feb

97

80

70

60

52

63

69

55

59

88

86

70

68

64

62

70

68

62

78

110

160

33 i 240

67

80

80

73

146

253

220

152

121

200

150

90

77

75

72

68

SO

57

Month

October ..... . . . . . .........

November .... .... ............

December ......................

Calendar year 1949 .........

January .......................

February ... ..................

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

April ................... .....

May ......................... .

June ..........................

Jnly ..........................

August ......... ... ...... ...

September . . ..................

Water year 1949-50 ..........

54

50

48

58

72

74

76

112

127

115

112

119

214

207

182

170

13 S

120

102

92

84

83

101

158

194

220

175

132

^

-

Secondfoot-days

898

2 203

2,280

16,436.5

2 690

3,388

4,002

l!s2l

865

715

717

682

21,613

Mar 1 Apr.

107

108

172

274

267

207

152

127

114

104

94

85

81

76

73

100

152

158

176

152

136

136

133

128

113

105

116

104

91

82

79

Maximum

9E

24C

£52

354

24C

22C

27^

9C

4£

31

27

36

3E

274

81

78

70

65

63

61

60

58

55

54

59

80

75

64

89

97

99

83

71

63

59

56

55

52

51

50

54

53

50

47

May

49

49

46

46

46

46

44

42

41

41

40

39

38

38

38

37

42

47

40

38

36

36

36

34

34

33

33

33

34

33

32

Minimum

18

26

28

18

52

48

73

47

32

25

21

21

20

18

June July

31

30

30

30

30

30

31

31

30

30

29

28

29

29

29

28

28

29

28

28

28

28

31

30

28

27

27

27

26

25

-

Mean

29.0

73.4

73.5

45.0

86 .8

121

129

65.1

39.4

28 , 8

23.1

23.1

22.7

59.2

24

24

24

24

24

24

24

24

25

24

23

23

23

23

23

23

22

22

22

22

22

22

22

22

21

21

22

27

24

23

22

Per 

square 

mile

2.13

5.40

5.40

3.31

6 .38

8 . 90

9.49

4.79

2.90

2.12

1.70

1.70

1.67

4.35

Aug.

22

22

22

22

22

22

22

22

21

21

21

21

21

22

38

32

26

24

22

22

22

22

24

26

24

22

22

22

22

22

22

I 

Sept.

22

22

21

22

22

22

21

21

21

?1

21

21

21

21

21

21

21

21

2±

21

20

20

21

33

35

33

26

24

23

22

-

Runoff

Inches

2.46

6.02

6.23

44.94

7 .36

9.26

10.94

5.34

3 . 34

2 37

1.96

1.96

1.86

59.10

Acre-feet

, 780

,370

,520

3 ,600

i 3 4O

, 720

,940

', , 870

,420

,720

, 420

,420 

,350

4E,870

Peak discharge (base, 180 sec .-ft.) . Nov. 27 (9 a.m.) 246 sec. -ft. ; Dec. 28 (9 a.ir.) 267 sec.-ft. 

Jan. 22 (time ana discharge unknown); Feb. 13 (7 to 10:30 p.m.) 240 sec.-ft.; Feb. 26 (6:30 a.m.) 

226 sec.-ft.; Mar. 5 (3 to 4 a.m.) 281 sec.-ft.; 11 p.m. Mar. 18 to 3 a.m. Mar. 19, 182 see.-ft.

Note. No gage-height record Jan. 3, 4, 13-25, Jan. 28 to Feb. .6, Sept. 30; discharge computed on 

basis of records for nearby streams.
CRANBERRY CREEK BASIN 6£ 

Cranberry Creek near Shelton, Wash.

Location. Water-stage recorder, lat. 47°16'00", long. 123°00'30", in NWi sec. 36, T. 21 

N., R. 3 W., half a mile upstream from mouth and 6 miles northeast of Shelton.

Drainage area.--15.2 square miles.

Records available.--December 1942 to September 1943, August 1948 to September 1950.

Extremes. Maximum discharge during year, 359 second-feet Mar. 5; maximum gage height, 4.£ 

feet Mar. 4; minimum discharge, 6.0 second-feet Aug. 11.

1942-43, 1948-50: Maximum discharge, 402 second-feet Feb. 22, 1949; maximum gage 

height, that of Mar. 4, 1950; minimum discharge, 4.7 second-feet Sept. 3, 11, 13, 1949 

(gage height, 1.87 feet).

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

Some diversion. No regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.6

6.6

6.6

8.9

9.8

8.9

8.5

8.2

12.5

12.5

13

11.5

9.8

8.9

8.2

8.5

7.4

7.0

6.6

6.6

6.6

6.6

6.6

6.6

7.4

7.8

10.5

36

24

19

17

Nov.

15

13

12.5

11.5

11

11

10.5

12.5

13

15.5

34

57

70

76

59

46

38

32

27

20

17

20

27

34

49

137

341

269

206

161

-

Dec.

154

161

120

99

86

69

69

50

51

48

48

48

47

45

44

43

46

47

44

41

40

42

60

76

82

84

136

269

251

220

211

Jan.

177

156

145

134

125

124

126

119

112

120

120

110

100

82

82

83

80

80

100

161

242

305

269

220

130

105

h97

90

84

78

76

Month

October ................... ...

November .............. .......

December ......................

Calendar year 1949 .........

January ........... ...........

February ....... ....... ......

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

April .........................

May ...........................

June ...................... . .

July ..........................

August ........................

September . . ..................

Water year 1949.50 ..........

Feb.

73

72

70

72

74

76

82

90

100

110

110

112

120

130

170

165

160

150

130

120

120

120

130

160

200

270

198

158

_

_

-

Secondfoot-days

324.7

1,845.5

' °^-*-

13,697.4

4,032

3,542

5, 186

1,851

808 . 5

471

332 1

304!s

274.7

21,803.0

Mar

126

107

170

332

350

296

231

196

175

156

142

130

118

106

96

116

162

174

210

182

177

174

166

164

153

142

150

137

125

116

107

Maximum

36

341

269

368

305

270

350

106

37

18 .£ 

13 £ 16 "

14

350

Apr.

106

96

88

80

74

69

65

60

56

51

49

62

55

51

73

82

78

75

68

62

55

52

49

46

43

42

46

42

39

37

May

37

37

35

34

34

31

28

28

27

27

26

26

24

25

24

23

27

31

27

26

24

24

23

21

21

20

21

20

20

19

18.5

Minimum

6.6

10.5

40

5.2

76

70

96

37

18 ,5

14

9.1

7.5

7.5

6.6

June

18.5

17

17

17

16

16

17

16.5

15

15

15.5

15.5

15

15

15

15

16

16.5

15.5

15.5

15.5

15.5

16.5

16

15

15

14.5

15

14.5

14

Mean

10.5

61.5

Q-l *

'

^7 ^ ' 

130

126

167

61.7

26.1

15.7

10.7 9 . 82

9.16

59.7

July

13.5

13.5

13

13

12.5

11.5

11.5

11.5

12.5

11.5

11

10.5

10.5

10.5

10.5

10

10

10

10

9.8

9.1

9.1

9.5

9.1

9.1

9.1

9.5

11

10.5

9.8

9.5

Per 

square 

mile

0.691

4.05

6.01

2.47

8 .55

11.0

4.06

1.72

1.03

.704

. 646

.603

3.93

Aug.

8.8

8.8

8.8

8.4

8.4

8.4

8.4

8.1

7.8

7.8

7.5

7.5

7.5

8.8

16

12.5

1

1

0.5

0.5

9.1

9.1

10

1

1

1

0.5

2.5

3

12

11.5

1

1

1

1

1

0.5

0.5

0.5

9.8

Sept

9.8

9.8

9.

9.

8.

8.

8.

8.

8.

8.

8.

8.

8.

8.

7.8

8.1

7.8

7.8

.8

.8

.8

.5

.8

13

13.5

14

12

11

10.5

10

-

Runoff

In-shes

0.79

4.52

6 . 93

 Z-Z CO '

9 87

8 .67

12.69

4.53

1 .98

1.15

.81

.75

.67

53.36

Acre-feet

644

3,660

5,620

27,180

8 000

7^030

10,290

3,670

1,600

934

659

604

545

43,260

Peak discharge (baae, 200 aec.-ft.).--Nov. 27 (8 a.m.) 350 sec.-ft.; Dec. 28 (1, 2 p.m.) 287 aec.- 

ft.; Jan. 22 (5:30 to 10 a.m.) 314 sec.-ft.; about Feb. 26 (time unknown) 296 aec.-ft.; Mar. 5 (8:30 

to 11:30 a.m.) 359 aec.-ft.; Mar. 19 (4 a.m.) 215 aec.-ft.

h Computed from ataff-gage readlnga.

Note.--No gage-height record Jan. 12-19, 25, 26, Jan. 28 to Feb. 26; discharge computed on baaia 

of recorded range In atage and recorda for nearby atreams.
66 JOHNS CREEK BASIN

Johns Creek near Shelton, Wash.

Location. Water-stage recorder, lat. 47°15'00", long. 123°05'15", in NEi;- sec. 5, T. 

2DTT, R. 3 W., 2j miles upstream from mouth and 3 miles north of Shelton.

Drainage area. 17.7 square miles (revised).

Records available.--December 1942 to September 1943, August 1948 to September 1950.

Extremes. Maximum discharge during year, 211 second-feet Mar. 5 (gage height, 3.37 

 i'eet); minimum, 4.6 second-feet Oct. 18, 19.

1942-43, 1948-50: Maximum discharge, that of Mar. 5, 1950; minimum, 4.2 secondfeet Aug. 31, 1949 (gage height, 1.62 feet).

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

no diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 19EO

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29 

30

31

Oct.

5.3

5.3

5.3

7.7

8.G

7.7

6.5

6.1

10 a. ' 6

9.6

8.6

7.3

6.1

5.3

5.0

5.0

5.0

5.0

5.1

5.2

5.2

5.2

5.2

5.2

5.5

8.0

25

17.5 

12.5

9.9

Nov.

8.4

7 . 3

7^0

7.0

6.7

6.7

B .4

7.0

7.7

9.9

19

30

37

38

30

25

22

19.5

18

16.5

15

17.5

Z2

24

30

50

90

80

70

62

_

Dec.

61

66

62

53

48

44

40

36

32

30

27

27

26

25

24

22

26

26

23

21

21

22

32

40

42

43 

83

153

139 

118

105

Jan.

92

78

66

61

59

61

57

52

55

59

54

45

40

40

41

40

39

42

66

93

120

116

108

a88

73 

71

70

61 

55

49

Month

October .......................

November ......................

December ... . ................

Calendar year 1949 .........

January .......................

February ......................

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

April . . ......................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

47

44

41

43

47

50

52

63

67

67

67

76

105

108

113

109

99

97

93

88

85

87

102

133

165

179 

159

136

_

Secondfoot-days

237.5

789.6

1,517

9,997.8

2,012

2,522

3,588

1,795

918

519.5

380

335.8

230.4

14,844.8

Mar.

119

118

154

205

200

168

143

130

119

106

98

90

86

80

78

93

114

116

128

118

116

114

110

110

104

100

106

100

93

87

85

Maximum

25

90

153

195

120

179

205

85

42

21

13.5

16

14.5

205

Apr.

85

82

77

73

70

66

64

61

59

57

58

65

61

57

66

67

68

63

59

57

54

52

51

49

48

46

48

47

44 

41

-

May

42

41

40

38

38

36

36

33

32

32

31

30

29

28

28

27

29

31

30

28

26

26

25

24

23

24 

24

22

23 

21

21

Minimum

5.0

6.4

21

4 6

39

41

78

41

21

14

11

9.1

5.8

5.0

June

21

20

19.5

18.5

18.5

18.5

19

18.5

18

18

18

17.5

17.5

17.5

17

17

19

18

17

16

16

15.5

16.5

16.5

16.5

15.5 

15

15.5

14.5 

14

-

Mean

7.66

26.3

48.9

27.4

64.9

90.1

116

59 .6

29.6

17.3

12.3

7.68

40. 7

July

13. E

13. E

13

13

12. E

12. E

12

12. E

13

13

13

12.5

12.5

12.5

12.5

12.5

12

12

12

11.5

11.5

11

11

11

11

11

11

13

13 

12.5

12.5

Aug.

10.5

10.5

10.5

10.5

10.5

10.5

11

10.5

9.9

9.9

9.9

9.5

9.5

10.5

16

15

12.5

11.5

10.5

9.9

9.9

9.9

11

13.5

12.5

U 

10.5

9.9

9.9 

9.5

9.1

Per 

square 

mile

0.433

1.49

2.76

1.55

3.67

5.09

6.55

3.38

1.67

.977

.695

 . 610 

.434

?.30

Sept.

8.7

8.4

8.0

7.0

7.0

7.0

7.0

7.3 e.i

6.7

6.7

6.7

7.0

7.0

6.4

6.4

6.7

6.1

6.1

6.4

5.8

5.8

5.8

10.5

14

14.5

11.5

9.1

7.7 

7.0

'

Runoff

Inches Acre-feet

C.50 471

1.66 1,570

3.19 3,010

21.01 19,820

4.23 3,990

5.30 5,000

7.54 7,120

3.77 3,560

1.93 1,820

1.09 1,030

.80 754

.71 666

.48 457

31.20 29,450

a No gage-height record; discharge computed on basis of records for nearby strean
DESCHUTES RIVER BASIN 67

Deschutes River near Rainier, Wash.

Location. Water-stage recorder, lat. 46°51'10", long. 122°40'00", in SWij sec. 22, T. 16 

N., K. 1 E., half a mile downstream from mouth of outlet from Reichel Lake and 2f miles 

southeast of Rainier.

Drainage area.--89 square miles.

Records available.--June 1949 to September 1950.

Extremes.--Maximum discharge during year, 3,940 second-feet Dec. 28 (gage height, 11.06 

feet); minimum, 28 second-feet Sept. 22-24 (gage height, 2.67 feet).

1949-50: Maximum discharge, that of Dec. 28, 1949; minimum, that of Sept. 22, 24,

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

some diversion for domestic use. No regulation.

Rating table, water year 1949-50, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

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

Probably

2.6 22 4.0 284 6.5 1,170 

2.8 42 4.5 423 7.0 1,4OO 

3.0 66 5.0 579 8.0 1,910 

3.3 117 5.5 758 9.0 2,510 

3.6 182 6.0 955 10.0 3,150

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

31 

31 

31 

32 

60

69 

68 

60 

53 

69

65 

78 

69 

57 

51

49 

45 

43 

42 

4O

39 

39 

38 

36 

36

36 

39 

199 

177 

102 

76

Nov.

65 

57 

53 

50 

48

46 

45 

45 

62 

72

140 

866 

647 

366 

270

201 

155 

129 

111 

96

88 

90 

201 

366 

453

693 

2,140 

1,060 

630 

498

Dec.

408 

720 

596 

423 

366

363 

303 

254 

224 

199

175 

164 

157 

148 

148

159 

199 

262 

208 

173

180 

*279 

734 

1,170 

630

596 

1,290 

2,970 

*1,400 

1,020 

739

Jan.

546 

438 

366 

327 

295

316 

546 

408 

346 

630

530 

380 

b300 

b260 

b250

b240 

b220 

M90 

666 

3,010

2,810 

2,150 

1,550 

955 

666

562 

483 

408 

b350 

b310 

b280

Feb

b250 

b240 

b250 

289 

380

684 

*596 

963 

720 

596

546 

514 

835 

816 

1,300

1,450 

935 

720 

666 

579

483 

453 

689 

2,510 

2,330

1,970 

1,300 

875

Month fot-d

Octc 

Nove 

Decs

Ca

Jamj 

Febr 

Hare 

Apra 

May 

June 

Julj 

Augu 

Sepl

WE

lendar year 

ary

ember . .

1,860 

9,743 

16,657

-

20,788 

23,939 

23,417 

12,636 

5,991 

3,268 

1,651 

1,289 

1,102

ter year 1949-50 ......... 122,341

Peak discharge (base, 2,000 sec. -ft.). N

sec. -ft.; Jan. 20 (5 p.m.) 3,570 sec. -ft.; 

sec. -ft.

Mar.

666 

562 

740 

2,300 

3,080

1,880 

1,020 

758 

613 

530

468 

408 

380 

355 

338

380 

981 

995 

875 

720

579 

596 

579 

579 

498

438 

468 

468 

423 

380 

360

Maximum

199 

2,140 

2,970

-

3,010 

2,510 

3,080 

935 

252 

148 

70 

58 

86

3,080

Apr

453 

546 

530 

453 

394

366 

335 

322 

300 

270

257 

532 

739 

546 

530

739 

935 

666 

498 

438

394 

366 

327 

289 

265

241 

244 

239 

216 

206

May

214 

221 

214 

211 

234

231 

211 

199 

187 

182

187 

224 

252 

239 

218

204 

206 

221 

192 

175

170 

177 

175 

161 

150

157 

180 

173 

150 

141 

135

Minimum

31 

45 

148

-

190 

240 

338 

206 

135 

74 

43 

36 

28

28

June

133 

135 

139 

148 

148

137 

131 

121 

111

113

121 

121 

113 

108 

104

98 

113 

108 

100 

98

95 

93 

104 

100 

90

83 

78 

78 

75 

74

Mean

60.0 

325 

537

-

671 

855 

755 

421 

193 

109 

53.3 

41.6 

36.7

335

P 

sqi

m

July

70 

66 

63 

62 

60

60 

58 

57 

58 

58

56 

54 

53 

52 

51

51 

50 

49 

49 

49

48 

46 

46 

45

44

44 

43 

49 

60 

52 

48

Aug.

44 

43 

42 

41 

41

41 

41 

42 

41 

39

39 

38 

38 

38 

41

58 

51 

45 

42 

41

40 

39 

43 

46 

44

41 

40 

40 

38 

36 

36

Sept.

35 

35 

34 

34 

34

34 

33 

32 

32 

31

31 

31 

30 

30 

30

30 

30 

30 

30 

30

30 

29 

28 

31 

39

86 

80 

54 

46

43

er Runoff

i e Inches Acre-feet

0.674 0.78 3,690 

3.65 4.07 19,320 

6.03 6.96 33,040

.

7.54 6.69 41,230 

9.61 10.00 47,480 

8.48 9.79 46,450 

4.73 5.28 25,060 

2.17 2.50 11,880 

1.22 1.37 6,480 

.599 .69 3,270 

.467 .54 2,560 

.412 .46 2,190

3.76 51.13 242,600

ov. 27 (11 a.m.) 3,220 sec. -ft.; Dec. 28 (6 a.m.) 3,940 

Feb. 24 (9 a.m.) 3,080 sec. -ft.; Mar. 5 (4 p.m.) 3,500

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
68 DESCHUTES RIVER BASIN

Deschutes River near Olympia, Wash.

Location. --Water-stage recorder, lat. 47°00'40", long. 122°53'40", in NW^SEj sec. 35, T. 

 18 D'., R. 2 W. , li miles upstream from mouth and Z\ miles south of Olympia.

Drainage area. 164 square miles.

Records available. April 1945 to September 1950.

Extremes . Maximum discharge during year, 4,080 second-feet Mar. 6 {gage height, 7.68 

feet); minimum, 85 second-feet Oct. 1, 2 (gage height, 1.96 feet).

1945-50: Maximum discharge, that of Mar. 6, 1950; maximum gage heig!: 4;, 8.00 feet 

Feb. 18, 1949; minimum discharge, 66 second-feet Oct. 11, 1946.

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

Small diversions above station for irrigation. No regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

85 

86 

S6 

90 

98

129 

127 

121 

117 

123

132 

127 

129 

121 

114

106 

104 

101 

98 

98

96 

93 

95 

95 

95

96 

101 

167 

293 

19E 

169

Nov.

138 

127 

121 

116 

114

110 

108 

108 

108 

129

145 

653 

905 

480 

368

299

252 

219 

200 

179

166 

171 

235 

368 

480

668 

1,670 

1,600 

855 

660

Dec

560 

740 

740 

580 

482

482 

427 

394 

349

319

292 

280 

268 

256 

245

250 

271 

346 

a330 

a300

a320 

a350 

aSOO 

al,700 

al.100

al.OOO 

al,400 

3,120 

2,420 

1,560 

1,200

Jan.

930

762 

660 

600

520

600 

855 

700 

620 

762

955 

720 

620 

520 

520

482 

451 

424 

465 

1,940

3,540 

3,200 

2,600 

1,780 

1,230

1,030 

930 

808 

a700 

3600 

3550

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May 

Jnne 

July 

Augu 

Sept

Ha

lendar year 194£ 

ary

ember ...... ..............

ter year 1949-50 ........ .

Feb.

aSOO 

aSOO 

aSOO 

520 

620

830 

980 

1,180 

1,200 

980

905 

880 

1,060 

1,200 

1,260

1,860 

1,500 

1,130 

1,000 

930

808 

740 

808 

2,000 

3,050

3,050 

2,420 

1,620

Secondfoot-days

3,684 

11,757 

22,581

132,272

31,074 

34,031 

36,452 

19,917 

10,711 

6,618 

4,607 

3,922 

3,481

188,835

Mar.

1,260 

1,100 

1,100 

2,000 

3,360

3,360 

1,900 

1,410 

1,170 

1,020

900 

825 

750 

702 

680

680 

1,110 

1,540 

1,350 

1,170

1,000 

950 

950 

925 

850

775 

775 

775 

725 

680 

660

Maximum

293 

1,670 

3,120

3,120

3,540 

3,050 

3,360 

1,200

415 

263 

172 

142 

170

3,540

Apr.

680 

825 

825 

725 

660

620 

580 

560 

540 

480

465 

620 

1,020 

850 

750

950 

1,200 

1,050 

825 

702

640 

600 

580 

520 

480

450 

450 

435 

420 

415

May

415 

415 

390 

387 

390

390 

381 

366 

354 

345

342

357 

387 

384 

369

354 

354 

363 

342 

324

312

315 

327 

309 

297

294

306 

309 

291 

274 

268

Minimum

85 

108 

245

85

424

500 

660 

415 

268 

179 

134 

118 

106

85

June

257 

254 

254 

257 

263

257 

251 

240 

230 

227

227 

227 

227 

220 

215

210 

212 

222 

212 

205

205 

200 

207 

210 

203

193

188 

184 

182 

179

Mean

119 

392 

728

362

1,002 

1,216 

1,176 

664 

346 

221 

149 

127 

116

517

July

172 

170 

166 

163 

161

159 

157 

155 

159 

157

152

150 

148 

148 

148

146 

144 

142 

142 

142

140 

138 

136 

136 

134

134 

134 

142

148 

146 

138

Per 

square 

mile

0.726 

2.39 

4.44

2.21

6.11 

7.41 

7.17 

4.05 

2.11 

1.35 

.909 

.774 

.707

3.15

Aug.

134

132 

130 

128 

128

130 

128 

126 

126 

126

122 

120 

120 

122 

134

138 

142 

134 

130 

126

122 

122 

124 

128 

128

124 

122 

120 

120 

118 

118

Sept.

117 

115 

115

115 

113

113 

113 

113 

111 

111

111 

109 

109 

109 

109

109 

109 

109 

109 

109

107 

106 

107 

115 

118

136 

170 

144 

128 

122

Runoff

Inches

0.84 

2.67 

5.12

30.01

7.05 

7.72 

8.27 

4.52 

2.43 

1.50 

1.04 

.89 

.79

42.84

Peak discharge (base, 2,000 sec. -ft. ) .--Nov. 27 (11:30 p.m.) 2,660 sec. -ft. ; about Dec

Ac re- feet

7,310 

23,320 

44,790

262,400

61,630 

67,500 

72,300 

39,500 

21,240 

13,130 

9,140 

7,780 

6,900

374,500

24 (time

and discharge unknown],- Dec. 28 (9:30 p.m.) 3,960 sec.-ft.; Jan. 21 (10 a.m.) 3,740 sec.-ft.; Feb. 

16 (4 p.m.) 2,090 sec.-ft.; Feb. 26 (5:30 a.m.) 3,280 sec.-ft.,- Mar. 6 (5 a.m.) 4,080 aec.-ft. 

a No gage-height record; discharge computed on basis of records for station near Rainier.
DESCHUTES RIVER BASIN 69

Spurgeon Creek near Olympia, Wash.

Location.--Water-stage recorder, lat. 460 57'00", long. 122°50t30", on west line sec. 20,

T. 17 N., R. 1 W., a quarter of a mile upstream from mouth and 7.2 miles southeast of

Olympia.

Drainage area.--16.2 square miles.

Kecoras available.--June 1949 to November 1950 (discontinued). 

Extremes.--Maximum discharge during period October 1949 to November 1950 not determined;

maximum gage height, 6.46 feet Dec. 28, affected by backwater from Deschutes River;

minimum discharge, 5.7 second-feet Oct. 1 (gage height, 1.63 feet).

1949-50: Maximum discharge not determined; maximum gage height, that of Dec. 28

1949; minimum discharge, 4.8 second-feet Aug. 18, 1949 (gage height, 1.62 feet). 

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

those for periods of backwater or no gage-height record, which are poor. Probably some

diversions for domestic use. No regulation.

Discharge, in second-feet, 1949-50

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.4

6.4

6.4

6.8

7.6

7.6

8.1

7.9

7.9

8.4

11

9.0

8.4

8.1

8.1

7.9

7.9

7.6

7.6

7.6

7.3

7.6

7.6

7.6

7.3

7.9

8.4

18

11.5

9.3

8.7

Nov.

8.1

7.9

7.9

7.6

7.6

7.3

7.3

7.9

7.9

7.9

8.7

26

31

16.5

13

12

11.5

11

11

11

9.8

11

14

16.5

16.5

19

045

c35

23

22

-

Dec.

21

27

26

25

26

25

24

22

22

21

20

20

20

19.5

19

18.5

19

21

19

17.5

18

19

24

34

24

26

54

CllO

127

86

79

Jan.

64

53

46

40

36

47

53

44

40

55

57

48

a40

a35

a33

a31

a30

a31

a 40

c90

C140

c!40

CllO

86

68

60

54

46

38

34

30

Feb.

28

27

26

25

26

36

36

54

48

46

47

47

56

51

49

C55

43

37

36

32

30

29

38

C80

CllO

C120

c90

76

_

_

-

Mar.

64

60

62

C90

c!30

clOO

80

69

62

58

52

46

43

40

37

40

60

54

54

47

44

50

50

46

41

40

46

46

42

38

37

Apr.

38

38

35

33

32

31

30

29

28

27

27

34

31

28

30

34

35

30

28

28

27

27

27

26

26

25

25

24

24

23

May

23

23

22

22

21

21

20

20

20

20

19.5

19

18.5

18

18

18

18.5

19

18

18

17.5

16.5

16.5

16.5

16.5

16

15.5

15

15

14.5

14.5

June

14.5

14

14.5

14.5

14.5

14.5

14.5

14.5

14.5

14

14.5

14

13.5

14

13.5

13

13

13

13

13

12.5

12.5

13

13

13

13

12.5

12.5

12

12

-

July

11.5

12

12

12

11.5

11.5

11.5

11

11

11

11

10.5

10

9.8

10

10

9.8

9.5

9.5

9.5

9.5

9.3

9.3

9.0

9.3

9.0

9.3

 10.5

11

10.5

9.8

Aug.

9.8

9.3

9.5

9.5

10.5

11

10.5

9.8

9.8

9.0

9.0

9.0

8.7

9.0

11

a 14

all

9.8

9.5

9.8

9.6

9.0

9.0

9.5

9.3

9.3

9.2

9.3

9.0

9.0

9.3

Sept.

9.8

9.0

9.0

9.0

8.7

8.4

8.4

7.3

7.6

8.1

8.

8.

8.

9 .

9.

9.

9 .

8.

8.

8.

8.

8.

7.9

9.3

11

12

11.5

9.8

9.5

9.5

-

a No gage-height record; discharge computed on basis of weather records and record's for nearby 

streams.

c Backwater from Deschutes River.

Note.--Shifting-control method used Jan. 24 to Feb. 15, Feb. 17-23, Aug. 3-15, Aug-. 19 to Sept. 30.

1950

Day

1 

2 

3 

4 

5 

6

Oct.

9.0 

8.7 

9.0 

9.8 

12.5 

12

Nov.

18 

18 

16.5 

15.5 

15 

14.5

Day

7 

8 

9 

10 

11 

12

Oct.

13 

13 

13 

19 

17 

13,. 5

Nov.

14 

14 

13.5

Day

13 

14

15 

16 

17 

18

Oct.

12 

12 

12 

11.5 

11.5 

12

Nov.

1

Day

19 

20 

21 

22 

23 

24

Oct.

14.5 

14.5 

12.5 

11.5 

11.5 

10.5

Nov.

-

Day

25 

26 

27 

28 

29 

30 

31

Oct.

10.5 

12 

15.5 

21 

20 

17.5 

16.5

NOV.

:

Note. Shifting-control method used Oct. 1 to Nov. 9.

Monthly discharge, in second-feet, 1949-50

Month

May ............................

September .....................

Water year 1949-50 ..... ....

October 195O ...................

November 1-9 ...................

Secondfoot-days

257.9 

440.9 

1,033.5

-

1,719 

1,378 

1,728 

880 

570.5 

404.5 

321.1 

301.0 

269.8

9,304.2

408.5 

139

Maximum

18 

45 

127

-

140 

120 

130 

38 

23 

14.5 

12 

14 

12

140

21

- 18

Minimum

6.4 

7.3 

17.5

-

30 

25 

37 

23

14.5 

12 

9.0 

8.7 

7.3

6.4

8.7 

13.5

Mean

8.32 

14.7 

33.3

-

55.5 

49.2 

55.7 

29.3 

18.4 

13.5 

10.4 

9.71 

8.99

25.5

13.2 

15.4

Per 

square 

mile

0.514 

.907 

2.06

-

3.43 

3.04 

3.44 

1.81 

1.14 

.833 

.642 

.599 

.555

1.57

.815 

.951

Runoff

Inches

0.59 

1.01 

2.37

-

3.95 

3.16 

3.97 

2.02 

1.31 

.93 

.74 

.69 

.62

21.36

.94 

.32

Acre-feet

512 

875 

2,050

-

3,410 

2,730 

3,430 

1,750 

1,130 

802 

637 

597 

535

18,460

810 

276
VO WOODLAND CREEK BASIN

Woodland Creek near Olympia, Wash.

Location. Water-stage recorder, lat. 47°04'20", long. 122 0 49'00", in SW^ sec. 4, T. 18 

ti.Y ti- 1 W., 1 mile upstream from mouth and 4.4 miles northeast of Olympia.

Drainage area.--26.8 square miles.

Records available. June 1949 to September 1950.

Extremes.--Maximum discharge during year, 120 second-feet Dec. 28, Mar. 5; maximum gage 

height, 3.58 feet Mar. 5; minimum discharge, 11 second-feet Nov. 3.

1949-50: Maximum discharge, those of Dec. 28, 1949, Mar. 5, 1950; meximum gage 

height, that of Mar. 5, 1950; minimum discharge. 10 second-feet Sept. 23, 1940 (gage 

height, 1.39 feet).

Remarks.--Records good except those for period of shifting control, which ere fair, and 

those for period of no gage-height record, which are poor. Some diversion for domestic 

use. No regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

 9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

13

12.5

12.5

13

12.5

12.5

12.5

13

13

13

13

12.5

12.5

12.5

12.5

12

12.5

12.5

12.5

13

13

13

13

12.5

13

13

21

15

14

13

Nov.

13

13

12.5

13

13

13

13

13.5

13.5

13.5

15

39

22

16

13.5

13

13

13

13

13

12.5

13.5

14.5

17.5

20

24

42

27

19

17.5

-

Dec.

16

23

17.5

16.5

16

15.5

14.5

14

14

14

14

14

14

13.5

13.5

13.5

15

16

14

13.5

14

15

26

25

23

23

58

91

66

56

52

Jan.

45

40

38

36

36

43

44

44

40

55

51

45

42

a40

a38

aZ6

a35

a35

a40

75

92

96

81

71

61

60

57

53

50

48

47

Month

October ... ...................

November ......................

December ......................

Calendar year .........

January .......................

February ......................

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

April ......... ...... ........

May ...........................

June ..........................

July ..........................

August ........ ...............

September .....................

Water year 1949-50 ..........

Feb.

47

47

47

44

42

49

51

74

61

58

57

60

72

65

63

60

57

54

54

71

50

48

64

83

99

96

85

77

.

_

-

Secondfoot-days

406.5

509

751

""

1,574

1,715

2, 606

1 , 798

1 239

918

767

637 

521

13,442

Mar.

74

74

84

113

113

99

91

86

83

81

78

75

73

72

69

74

102

92

99

90

86

88

86

83

79

78

82

78

75

75

74

Maximum

21

42

91

-

96

99

113 

74

48 

34

27

23 

19.E

113

Apr.

74

72

71

69

68

66

65

63

62

60

60

68

63

60

63

65

65

61

59

57

56

55

53

51

50

50

50

48

47

47

-

May

48

47

45

45

45

45

44

44

43

42

42

42

41

40

40

40

40

39

38

38

38

37

36

36

36

36

36

34

34

34

34

Minimum

12

12.5

13.5

""

35

42

69

47

34

27

23

18*5 

16.5

12

June

34

33

33

33

33

33

33

33

32

32

31

31

31

31

31

30

30

30

30

29

29

29

30

29

29

29

28

28

27

27

-

Mean

13.1

17.0

24.2

~

50 . 8

61 2

84.1

59 9

40.0

30.6

24.7 

20.5

17.4

36.8

July

25

25

27

27

26

26

26

26

26

26

26

26

25

25

25

25

25

24

24

24

24

24

24

23

23

23

23

24

24

23

23

Per 

square 

mile

0.489

.634

.903

1.90

2 . 28

3.14

2 24

l!49

1.14

.922

.765

.649

1.37

Aug.

22

22

22

22

22

22

22

21

21

21

21

21

21

21

23

21

21

21

19.5

19.5

19.5

20

20

20

19

19

19

19

18.5

18.5

18.5

Sept.

18.5

18

18

17.5

17.5

17.5

17.5

17

17

17

17

17

17

17

17

17

17

17

17

16.5

16.5

16.5

16.5

18.5

19

19.5

18

17.5

17.5

17

17

Runoff

Inches

0.56

.71

1.04

~

2 . 18

2 . 38

3 . 62

2. 50

1^72

1.27

1.06 

* 88

.72

18.64

Acre-feet

806

1,010

1,490

3,120 

3 400

5^170

3,570

2,460

l|s20

1,260 

1,030

26,660

Peak discharge (base. 110 sec.-ft.). Dec. 28 (1 a.m.) 120 sec.-ft.; Feb. 25 (9 a.m.) 113 

Mar. 5 (1 a . mT) 120 sec.-ft.j Mar. 17 (6 a.m.) 113 sec.-ft.

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

Note. Shifting-control method used Oct. 9 to Dec. 27, Jan. 20 to May 29.
NISQUALLY RIVER BASIN 71

Nisqually River near National, Wash.

Location. Water-stage recorder, lat. 46°45'50", long. 122°05'00", in SWijSW^ sec. 29, T, 

15 M., R. 6 E., 100 feet downstream from railroad bridge, 1 mile west of National, 1\ 

miles west of Ashford, and 3 miles upstream from Mineral Creek.

Drainage area.--133 square miles.

Records available.--May 1942 to September 1950.

Extremes.--Maximum discharge recorded during year, 9,610 second-feet Nov. 27 (gage height, 

9.60 feet); minimum not determined, probably occurred during period of no gage-height 

record in January.

1942-50: Maximum discharge, that of Nov. 27, 1949; minimum not deternined, probably 

less than 135 second-feet during period of doubtful gage-height record Oct. 2-30, 1942.

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

Ho diversion. Slight regulation at low flow by power plant of Mount Rainier National 

Park on Paradise River.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1-8, Nov. 27 to Deo.3O)

3.3 26L

3.6 36L

3.9 487

4.2 642

4.6 896

5.0 1,190

5.5 1,620

6.0 2,160

6.5 2,790

7.0 3,510

7.5 4,350

8.0 5,330

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

292

292

283

442

438

384

332

289

731

631

666

642

530

464

474

413

373

339

318

299

292

289

289

286

286

295

292

1,570

932

689

561

Nov.

501

474

438

417

417

388

350

332

318

299

408

882

1,000

1,350

967

763

648

571

535

482

434

501

763

1,850

1,440

1,680

5,700

2,860

1,820

1,480

-

Dec .

1,230

1,580

1,310

1,080

967

828

732

672

642

592

545

540

516

501

521

492

482

469

434

408

413

506

660

720

660

609

770

1,350

1,230

1,000

808

Jan.

689

582

a540

a490

a460

535

438

400

384 38-8

354

332

322

a300

a300

a290

a280

a270

506

1,680

2,530

2,530

1,820

1,310

967

a850

726

636

a580

a520

a470

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April ..... ...................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year J.949-50 ..........

Feb.

a430

a420

a410

a400

438

474

438

451

417

408

396

400

561

582

889

1,120

1,000

932

855

763

720

744

848

2,160

2,600

2,340

1,720

1,350

_

_

-

Secondroot-days

14,413

30,068

23,267

288,276

22,479

24,266

32,261

23 , 683

35,480

51,640

39,590

21 920

14^890

333,957

Mar.

1,120

1,000

1,310

2,960

3,280

2,400

1,720

1,350

1,120

967

808

713

648

598

556

631

1,040

1,120

1,080

932

848

828

738

654

604

582

571

530

497

521

535

Maximum

1,570

5,700

1,580

5,700

2,530

2,600

3,280

1,230

1,770

2,280

2,040

1 '701 23C

5,700

Apr.

1,000

967

815

720

695

672

626

626

577

540

540

701

776

751

808

,040

,230

,120

,040

,040

1,040

967

882

776

713

660

642

582

571

566

-

May

592

587

587

654

648

614

571

556

556

620

835

1,310

1,670

1,670

1,580

1,480

1,480

1,350

1,150

1,080

1,190

1,350

1,310

1,270

1,310

1,530

1,770

1,670

1,530

1,480

1,480

Minimum

283

299

408

210

270

396

497

540

556

1,150

751

566

302

270

June

1,670

1,770

1,880

2,100

2,100

1,620

1,400

1,270

1,270

1,440

1,620

1,670

1,580

1,530

1,440

1,880

2,160

1,980

2,160

2,280

2,160

1,930

1,820

1,440

1,230

1,150

1,270

1,620

2,040

2,160

-

Mean

465

1,002

751

790

725

867

1,041

789

1,145

1,721

1,277

707

496

915

July

2,040

1,880

1,770

1,820

1,770

1,620

1,480

1,270

1,350

1,230

1,000

1,040

1,150

1,230

1,150

Ij040

1,080

1,190

1,350

1,190

1,150

1,190

1,310

1,350

1,350

1,150

1,000

1,000

932

751

757

Per

square 

mile

3.50

7.53

5.65

5.94

5.45

6.52

7.83

5.93

8.61

12.9

9.60

5.32

3.73

6.88

Aug.

835

i

'

)89

76

572

642

604

504

520

>26

631

666

595

354

592

1,080

1,230

396

308

744

738

689

554

395

577

566

592

526

587

520

598

614

Sept.

648

660

701

631

556

530

521

516

516

535

525

521

492

497

474

451

392

396

417

421

469

492

442

446

561

642

446

365

325

302

-

Runoff

Inches

4.03

8.41

6.51

80.61

6.29

6.79

9.03

6.62

9.92

14.44

11.07

6.13

4.16

93.39

Acre-feet

28,590

59,640

46,150

571,800

44,590

48,130

63,990

46,970

70,370

102,400

78,530

43,480

29,530

662,400

Peak discharge (base, 4.800 sec.-ft.). Nov. 27 (6 a.m.) 9,610 sec.-ft.

a No gage-height record; discharge computed on basis of weather records and records for Green 

River near Auburn.

238382 O - 53 - 6
72 NISQUALLY RIVER BASIN

Alder Reservoir at Alder, Wash.

Location. Water-stage recorder, lat. 46°48'05", long. 122°18'30", in NW£ sec. 9, T. 15 H., 

R. 4 E. , at Alder Dam on Nisqually River, 1 mile west of Alder and 4j miles upstream 

from Mashel River. Datum of gage is that used by city of Tacoma, which is 7.91 feet 

below mean sea level, datum of 1929.

Records available. November 1944 to September 1950.

Extremes. Maximum contents during year, 220.320 acre-feet July 26 {gage height, 1,203.23 

rest}; minimum, 98,460 acre-feet Jan. 19 (gage height, 1,150.32 feet).

1944-50: Maximum contents, that of July 26 1950; minimum observed (since reservoir 

first filled), 93,990 acre-feet Feb. 16, 1949 (gage height, 1,147.61 feet).

Remarks.--Reservoir is formed by concrete arch dam; storage began Nov. 7, 1&1 4; dam compieced in 1945. Capacity, 158,700 acre-feet between gage heights 1,114 fset {lower 

limit of operating range) and 1,200 feet (top of spillway gates). Dead storage, 52,100 

acre-feet. Water is used by city of Tacoma for power development. Figures given herein 

represent total contents.

Capacity table (gage height, In feet, and contents, In acre-feet) 

(Prepared by city of Tacoma from project surveys and maps)

1,150

1,160

1,170

97,910

115,690

135,800

1,180 

1,190 

1,2OO

158,260

183,270

210,840

Gage height at 12 p.m., In feet,water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

190.60

190.53

189.96

189.79

189.73

189.55

189.36

189.42

189.85

189.70

189.85

189.95

189.81

189.67

189.77

189.75

189.25

188.65

188.03

187.31

186.67

186.26

185.96

185.49

185.02

184.65

184.33

185.81

186.42

186.80

186.66

Nov.

186.71

186.68

186.53

186.42

186.03

185.31

184.82

184.62

184.30

183.82

184.03

185.73

187.08

188.04

18B.33

188.69

188.85

188.93

188.97

188.87

188.74

188.83

189.30

191.77

193.70

195.35

197.89

196.58

194.20

192.89

-

Dec.

192.46

192.23

191.52

190.44

189.58

189.35

189.63

190 . 13

190.25

189.78

188.81

187.15

185.53

183.83

182.27

180.43

178.97

177. S3

175.69

173.66

171.33

169.23

168.63

167.85

166.72

165.54

166.27

168.98

169.12

168.05

165.99

Jan.

163.61

160.43

158.62

158.67

158.69

159.16

159.24

159.17

158.63

158.62

158.22

157.59

_

155 . 84

-

153.72

151.99

150.53

151.42

157.23

161.97

165.15

165.92

164.86

163.30

161.16

158.50

157.34

157.31

156.51

155.72

Feb.

154.74

153.65

152.59

152.45

152.44

152.62

152.51

152.67

152.55

152.30

152 . 11

152.21

152.94

153.89

155.94

157.46

157.88

158.41

158.96

159.40

160.46

161.58

163.38

170.15

177.29

181.63

182.39

182.02

_

_

-

Mar.

181.31

180.82

182.53

187.30

190.21

190.96

190.73

189.79

188.34

187.26

186.66

185.94

185.13

184.93

185.22

185.67

186.81

186.86

186.91

186.33

185.53

184.90

184.93

185.43

185.85

185.26

186.56

186.69

186.54

186.53

186.46

Apr.

187.65

188.77

189.19

189.39

189.51

189.64

189.74

189.76

189.88

189.74

189.48

190.01

190.64

191.09

191.93

193.48

194.58

194.53

194.09

193.82

193.66

193.45

192.89

192.39

192.48

192.40

192.51

192.47

192.55

191.73

-

May

191.78

191.68

191.55

191.51

191.50

191.68

191.84

191.62

191.37

191.27

191.50

192.53

194.12

194.34

194.14

193.80

193.51

193.05

192.38

191.76

191.45

191.68

192.14

192.43

192.74

193.25

194.15

194.79

195.26

195.62

195.90

June

196.39

197.08

198.27

199.85

200.55

200.26

199.62

199.35

199.63

199.83

200.30

201.09

201.55

201.60

201.60

201.91

202.43

202.90

202.58

202.34

202.31

202.30

202.28

201.91

201.48

201.23

201.48

201.87

201.63

201.70

-

July

201.96

202.07

201.95

201.98

201.79

201.52

201.43

201.32

201.27

201.21

201.36

201.11

201.14

201.24

201.39

201.77

201.81

201.93

202.17

202.34

202.45

202 . 78

202.99

203.00

203 . 15

203.09

202.92

202.92

202.95

202.95

202.64

Aug.

202.62

202.65

202.48

202.17

202 . 14

202.24

202.11

201.36

201.87

201.94

201.89

202 . 11

202.30

202 . 23

202.36

202.72

202.62

202.59

202.56

202.80

202.60

202.38

202 ."25

202.06

201.70

201.59

201.64

201.38

201.03

200.68

200.20

Sept.

199.76

199.63

199.84

200.00

199.74

199.42

199.10

198.75

198.50

198.40

198.03

197.69

197.34

197.07

196.65

196.52

196.60

196.20

195.79

195.52

195.32

195.07

195.00

194.76

194.53

'194.58

194.24

193.85

193.40

192.90

-

Note. Add 1,OOO.OO feet to obtain gage height.

Monthly gage height and contents, water year October 1949 to September 1951)

Date

Sept. 30... ...................

Dec. 31.. ....................

Calendar year 1949 .........

Sept .30. .....................

Water year 1949-50 .........

Gage height 

(feet)t

,190.69

,165.99

-

,201.70

,192.90

-

Contents 

(acre-feet)

185,060

174,740

190,720

127,580

-

163,060

174,220

187,700

198, 940

215,780

218,530

211,420

190,740

-

Change In contents 

during month 

(acre-feet)

.

-10,320

+15,980

-63,140

-52,120

-19,730

+55,210

+11,160

+13,480

+11,240

+16,840

+2,75C

-7,110

-20,680

+5.68C

t Gage height and contents at 12 p.m.
NISQUALLY RIVER BASIN 73

Nisqually River at La Grande, Wash.

Location.--Water-stage recorder, lat. 46°50'30", long. 122°19'40", in SE-j sec. 29, T. 16 

N ., K. 4 E., half a mile downstream from city of Tacoma power plant, half a mile northwest of La Grande, and three-quarters of a mile upstream from Mashel River.

Drainage area. 296 square miles.

Records available.--December 1945 to September 1950. September 1906 to Oetcber 1911 (fragmentary), uctoner 1919 to September 1931 at site about 3 miles upstream, published as 

Nisqually River near La Grande.

Average discharge.--21 years (1906-8, 1909-10, 1919-31, 1944-50), 1,352 second-feet.

extremes.--Maximum discharge during year, 15,000 second-feet May 14 (gage height, 8.12 

reet); minimum, 4 second-feet May 14 (gage height, 0.93 foot); minimum dally, 389 

second-feet Sept. 17.

1906-10, 1919-31, 1943-50: Maximum discharge, 19,500 second-feet Dec. 12, 1921 

(gage height, 15.6 feet, site and datum then in use); practically no flow on many 

occasions at site near La Grande as result of regulation.

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

regulated by city of Tacoma power plant since February 1945 and by Alder Reservoir 

since November 1944 (see p. ).

Revisions. W 492: Drainage area.

Rating table, water year 1949-50, except period of shifting contro 

(gage height, In feet, and discharge, In second-feet)

2.5 

2.7 

3,0 

3.5 1, 

4.0 1,

Discharge, in second- f eet ,

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

570 

558 

1,250 

1,050 

1,010

1,100 

1,000 

584 

633 

1,330

1,070 

1,100 

1,160 

1,050 

720

796 

1,300 

1,290 

1,190 

1,250

1,150 

864 

726 

926 

896

868 

810 

767 

808 

646 

962

Nov.

746 

730 

810 

762 

950

1,270 

1,140 

764 

859 

1,030

890 

792 

810 

1,170 

1,400

951 

920 

888 

802 

902

857 

874 

932 

502 

675

1,810 

7,180 

8,580 

7,560 

5,050

Month

Ooto 

Hove 

Dece

Cal

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wat

endar year 1949

St. .............

er year 1949-50

Dec.

3,270 

3,910 

3,700 

3,550 

a2,700

1,900 

1,200 

706 

1,040 

1,550

2,000 

2,890 

2,670 

2,720 

2,720

2,820 

2,580 

2,290 

2,740 

2,890

3,030 

3,090 

3,110 

3,180 

3,010

2,740 

3,170 

3,670 

4,280 

4,240 

4,410

Jan.

4,250 

4,480 

3,040 

1,250 

1,150

990 

1,030 

1,200 

1,320 

1,330

1,300 

1,410 

1,490 

1,550 

1,490

1,600 

1,700 

1,740 

1,740 

3,000

4,690 

4,760 

4,710 

4,740 

4,580

4,160 

4,20C 

2,640 

1,480 

1,750 

1,700

464 4.5 2,700 

586 5.0 3,700 

805 5.5 4,900 

280 6.0 6,360 

930 6.7 8,740

water year October 1949 to September 1950

Feb.

1,680 

1,680 

1,740 

1,510 

960

1,270 

1,460 

1,360 

1,420 

1,390

1,260 

1,010 

1,440 

1,400 

2,290

3,440 

3,120 

2,260 

2,050 

1,820

1,000 

835 

1,030 

1,020 

752

2,060 

3,790 

3,830

Mar.

3,560 

2,970 

2,230 

3,590 

6,160

5,370 

4,410 

4,320 

4,370 

3,540

2,570 

2,420 

2,520 

1,580 

970

1,140 

2,340 

3,350 

3,240 

3,320

3,240 

3,130 

1,960 

1,230 

1,160

1,060 

1,160 

1,270 

1,500 

1,290 

1,440

Observed

Discharge 

second-f

Maximum

1,330 

8,580 

4,410

8,580

4,760 

3,830 

6,160 

3,060 

2,990 

3,140 

2,180 

1,350 

1,340

8,580

Minimum

558 

502 

706

333

990 

752 

970 

1,030 

978 

1,020 

698 

527 

389

389

in

set

Mean

949

1,754 

2,831

1,573

2,467 

1,746 

2,658 

1,722 

1,846 

2,117 

1,381 

969 

906

1,781

Runoff 

in 

acre-feet

58,380 

104,300 

174,100

1,139,000

151,700 

96,950 

163,500 

102,400 

113,500 

126,000 

84,910 

59,600 

53,880

1,289,000

Apr.

1,120 

1,190 

1,500 

1,580 

1,500

1,450 

1,380 

1,440 

1,120 

1,430

1,580 

1,660 

1,570 

1,550 

1,620

1,030 

2,300 

3,040 

3,060 

2,730

2,540 

2,420 

2,550 

2,380 

1,390

1,450 

1,230 

1,330 

1,200 

1,310

May

1,320 

1,350 

1,310 

1,390 

1,310

978 

984 

1,440

1,450 

1,380

1,300 

1,220 

1,050 

2,870 

2,990

2,930 

2,950 

2,800 

2,830 

2,540

2,360 

2,040 

1,650 

1,770 

1,800

1,930 

1,780 

1,890 

1,790 

1,900 

1,920

Change In

In Alder 

and La Grande 

Reservoirs 

(acre-feet)

-10,360 

+15,960 

-63,080

-52,140

-19,760 

+55,210 

+11,190 

+13,590 

+11,030 

+16,940 

+2,660 

-7,100 

-20,630

+5,660

June

1,900 

1,770 

1,280 

1,020 

2,100

2,810 

3,000 

2,340 

1,530 

1,890

1,780 

1,420 

1,600 

2,130 

2,060

2,130 

2,090 

2,130 

3,080 

3,140

2,730 

2,520 

2,490 

2,500 

2,280

1,860 

1,440 

1,580 

2,570 

2,350

July

2,000 

2,030 

2, 11C 

1,93C 

2,180

2.14C 

1.80C 

1.66C 

1,65C 

1.54C

1,280 

1,290 

1,240 

1,250 

1,060

698 

1,120 

1,100 

993 

1,150

991 

920 

1,010 

1,370 

1,200

1,290 

1,340 

1,220 

1,060 

895 

1,290

Aug.

1,000 

974 

1,120 

1,260 

834

560 

902 

891 

903 

636

847 

538 

527 

874 

1,040

888 

1,000 

1,130 

977 

714

1,210 

1,210 

1,200 

1,160 

1,160

914 

720 

1,120 

1,200 

1,190 

1,350

Sept.

1,340 

972 

524 

568 

986

979 

1,030 

1,000 

926 

730

1,050 

1,000 

970 

908 

1,060

662 

389 

952 

1,000 

814

812 

858 

628 

808 

1,060

1,040 

1,070 

959 

1,010 

1,060

Adjusted for change In 

reservoir contents

Runoff 

in 

acre-fee

Discharge in 

second- feet

* Mean

48,020 781 

120,300 2,022 

111,000 1,850

1,087,000 1,501

131,900 2,145 

152,200 2,741 

174,700 2,841 

116,000 1,949 

124,500 2,025 

142,900 2,402 

87,570 1,424 

52,500 854 

33,250 559

1,295,000 1,789

Per 

square 

mile

2.64 

6.83 

6.10

5.07

7.25 

9.26 

9.60 

6.58 

6.84 

8.11 

4.81 

2.89 

1.89

6.04

Runoff

inches

3.04 

7.62 

7.03

68.84

8.36 

9.64 

11.07 

7.35 

7.89 

9.05 

5.55 

3.33 

2.11

82.04

t Sunday.

a No gage-height record; discharge Interpolated.

Note. Shifting-control method used June 11 to Sept. 30,
74 NISQUALLY RIVER BASIN

Nisqually River near McKenna, Wash.

Location.--Water-stage recorder, lat. 46°51'15", long. 122°27'10", in SE£ sec. 20 T. 16 

M., K. 3 E., 800 feet downstream from Elbow Creek, three-quarters of a mile upstream 

from Tanwax Creek, and 7.4 miles southeast of McKenna. Datum of gage is 373.6 feet 

above mean sea level (from stadia traverse).

Drainage area. 445 square miles.

Records available.--August 1941 to September 1950.

Extremes. Maximum discharge during year, 11,100 second-feet Nov. 27 (gage 1-eight, 9.56 

reet); minimum, 198 second-feet Aug. 18 (gage height, 3.17 feet); minimum daily, 350 

second-feet Sept. 17.

1941-50: Maximum discharge, 17,000 second-feet Dec. 11, 1946 (gage height, 11.45 

feet); minimum, 85 second-feet Oct. 19, 1945 (gage height, 2.57 feet); minimum daily, 

176 second-feet Jan. 30, 1945.

Remarks.--Records good. Water diverted above station by Yelm Irrigation District. Major 

portion of flow regulated by Alder Reservoir and city of Tacoma power plsnt at La 

Grande.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Nov. 27 Nov. 28 to Sept. 30

3.4 312 4.6 1,060 7.0 4,25O 3.5 335 5.0 1,450 7 

3.6 410 5.0 1,420 7.5 5,34O 3.7 437 5.5 2,000 8 

3.8 518 5.5 1,950 8.0 6,550 4.0 625 6.0 2,65O 9 

4.0 635 6.0 2,570 8.5 7.89O 4.3 845 6.5 3,410 

4.3 835 6.5 3,310 4.6 1,O8O 7.0 4,360

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

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

Oct.

446 

352 

964 

860 

1,040

1,070 

963 

510 

481 

1,250

1,060 

1,060 

1,120 

958 

656

614 

1,180 

1,240 

1,190 

1,23O

1,160 

1,060 

722 

932 

9O1

860 

819 

1,090 

1,100 

758 

1,110

Kov.

824 

760 

841 

806 

942

1,360 

1,290 

818 

923 

1,110

976 

1,110 

1,180 

1,7OO 

1,950

1,250 

1,120 

1,020 

924 

984

940 

94O 

1,130 

739 

1,020

2,290 

8,140 

9,300 

7,950 

5,890

Dec.

3,760 4,630' 

4,310 

4,050 

3,630

2,440 

1,690 

962 

1,180 

1.85O

2,190 

3,070 

2,900 

2,960 

2,950

3,070 

2,940 

2,700 

2,970 

3,090

3,25O 

3,720 

4,170 

4,440 

3,790

3,390 

3,990 

5,350 

5,650 

5,230 

5,050

Jan.

4,670 

4,880 

3,640 

1,640 

1,460

1,380 

1,560 

1,650 

1,640 

1,820

1,750 

1,720 

1,770 

1,770 

1,7OO

1,770 

1,840 

1,910 

2,140 

4,960

6,780 

6,680 

6,190 

5,700 

5,160

4,660 

4,620 

3,320 

1,940 

2,O50 

2,080

Feb.

2,050 

2,040 

2,O60 

1,980 

1,600

2,000 

1,990 

2,140 

2,060 

1,950

1,790 

1,540 

2,080 

2,170 

3,210

4,880 

4,260 

3,130 

2,830 

2,560

1,580 

1,450 

1,860 

3,730 

3,400

4,150 

5,250 

4,630

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-5O .......................

Mar.

4,130 

3,440 

2,9OO 

5,450 

8,620

7,34O 

5,560 

5,120 

4,840 

4,1OO

2,920 

2,720 

2,790 

2,020 

1,410

1,540 

2,960 

4,230 

4,050 

3,940

3,670 

3.66O 

2,730 

1,760 

1,590

1,480 

1,610 

1,690 

1,880 

1,740 

1,850

Apr.

1, 

1, 

2, 

2,

1,

I, 

1, 

1, 

1, 

1,

1, 

2, 

2, 

2, 

2,

1, 

2, 

3, 

3, 

3,

3, 

2, 

2, 

2,

1,

1, 

1 

1, 

1, 

2,

Secondfoot-days

28,756 

60,227 

105,372

644,922

94,850 

74,370 

103,740 

65,300 

66,930 

66,420 

44,479 

29,611 

27,942

767,997

800 

91O 

1OO 

070 

910

900 

74O 

830 

510

840 

10O

060 

060

690

290

OIO 

84O 

880 

750 

720

730 

520 

650 

450 

300

May

1,590 

1,640 

1,620 

1,85O 

1,86O

1,500 

1,430 

1,810 

1,770 

1,700

1,630 

1,720 

1,610 

2,990 

3,350

3,250 

3,440 

3,180 

3,160 

2,800

2,660 

2,390 

1,820 

1,940 

1,940

2,120 

2,040 

2,080 

1,940 

2,040 

2,06O

Maximum

1,250 

9,300 

5,65O

9,300

6,780 

5,250 

8,620 

3,470 

3.35O 

3,260 

2,350 

1,350 

1,390

9,300

June

2,OOO 

2,000 

1,440 

1,240 

2,010

2,910 

3,030 

2,540 

1,610 

1,930

1,880 

1,550 

1,580 

2,110 

2,090

2,150 

2,160 

2,130 

3.09O 

3,260

2,860 

2,600 

2,640 

2,670 

2,520

2,070 

1,560 

1,510 

2,720 

2,560

July

2,130 

2,130 

2,260 

2,060 

2,320

2,350 

1,930 

1,730 

1,750 

1,640

1.3OO 

1,29O 

1,260 

1,260 

1,06O

679 

1,090 

1,100 

978 

1,200

1,020 

928 

970 

1,430 

1,210

1,330 

1,370 

1,290 

1,190 

924 

1,300

.5 5,440 

.0 6,600 

.0 9,210

Aug.

1,020 

958 

1.O9O 

1,250 

844

561 

882 

892 

894 

640

764 

499 

453 

794 

996

851 

943 

1,180 

933 

666

1,200 

1,220 

1,270 

1,180 

1,200

906 

695 

1,090 

1,170 

1,220 

1,350

Minimum Mean

352 928 

739 2,008 

962 3,399

312 1,767

1,380 3,06O 

1,450 2,656 

1,410 3,346 

1,450 2,177 

1,43O 2,159 

1,240 2,214 

679 1,435 

453 955 

350 931

350 2,104

Sept.

1,390 

1,050 

509 

484 

978

1,010 

1,060 

1,020 

934 

734

1,060 

1,010 

1,030 

898 

1,040

683 

350 

914 

1,020 

742

828 

842 

600 

816 

1,080

1,270 

1,230 

1,060 

1,120 

1,180

Runoff In 

acre -feet

57,040 

119,500 

209,000

1,279,000

188,100 

147,500 

205,800 

129,500 

132,800 

131, 7OO 

88,22O 

58,730 

55,420

1,523,OOO
NISQUALLY RIVER BASIN 75

Nisqually River at McKenna, Wash.

Location. Water-stage recorder, lat. 46°56'05", long. 122°33'40", in SE^NWi sec. 28, T. 

17 M., R. 2 E., at McKenna, 8j miles downstream from Tanwax Creek.

Drainage area. 514 square miles.

Records available.--October 1947 to September 1950.

Extremes. Maximum discharge during year, 12,200 second-feet Nov. 28 (gage height, 8.41 

feet); minimum, 99 second-feet Sept. 17, 18 (gage height, 1.44 feet).

1947-50: Maximum discharge, that of Nov. 28, 1949; minimum, 42 seconi-feet Sept. 19, 

1948 (gage height, 0.98 foot).

Remarks.--Records good. Major portion of flow regulated by Alder Reservoir and city of 

Tacoma power plant at La Grande. Yelm irrigation project and Centralia power canal 

divert water above station.

1.6 

1.8

2.0 

2.2 

2.5

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Mar. 6-13)

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

133

194

274

370

550

2.8 

3.1 

3.5 

4.0 

4.5

775

1,050

1,480

2,100

2,790

5.0 

5.5 

6.0 

7.0 

8.0

3,530

4,310

5,180

7,630

10,800

2.5 

2.8 

3.1 

3.5

550

765

1,020

1,400

4.0 

4.5 

5.0 

5.5

1,930

2,530

3,200

3,910

6.0 

6.5 

7.0 

8.0

4,680

5,520

6,480

8,780

Note. Same as preceding table below 2.5 

feet.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

3

3 

4

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

IB 

19 

20

21 

22 

23 

24 

25

36 

27 

38 

29 

30 

31

Oct.

296 

135 

525 

616 

727

780 

731 

398 

207 

868

856 

770 

860 

698 

484

376 

776 

1,010 

969 

934

863 

841 

519 

688 

632

629 

584 

797 

870 

568 

830

Nov.

600 

533 

536 

598 

648

1,130 

1,080 

612 

660 

848

760 

913 

993 

1,380 

1,800

1,090 

918 

814 

657 

737

749 

698 

894 

653 

760

1,670 

7,850 

10,500 

8,660 

6,430

Dec.

3,760 

4,630 

4,340 

4,010 

3,660

2,350 

1,500 

758 

884 

1,670

1,890 

2,990 

2,860 

2,860 

2,910

3,020 

2,870 

2,660 

2,850 

3,020

3,160 

3,530 

3,870 

4,480 

3,800

3,440 

3,940 

5,460 

5,750 

5,360 

5,140

Jan.

4,700 

4,880 

3,690 

1,590 

1,400

1,290 

1,580 

1,620 

1,580 

1,760

1,780 

1,650 

1,700 

1,670 

1,640

1,680 

1,730 

1,790 

1,930 

4,730

7,470 

7,570 

7,060 

6,240 

5,460

4,860 

4,720 

3,570 

1,890 

1,920 

1,940

Feb.

1,870 

1,830 

1,890 

1-,800 

1,500

1,890 

1,950 

2,200 

2,160 

2,010

1,840 

1,620 

2,080 

2,260 

3,040

5,000 

4,420 

3,310 

3,010 

2,780

1,590 

1,450 

1,760 

3,940 

3,910

4,560 

5,900 

5,180

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

4,600 

3,980 

3,240 

5,770 

10,100

8,800 

5,950 

5,310 

5,000 

4,240

3,040 

2,770 

2,830 

2,010 

1,280

1,330 

2,490 

3,860 

3,750 

3,660

3,370 

3,400 

2,700 

1,600 

1,400

1,290 

1,390 

1,470 

1,620 

1,500 

1,580

Apr.

1,550 

1,680 

1,840 

1,810 

1,670

1,7OO 

1,490 

1,560 

1,360 

1,400

1,580 

1,820 

2,060 

1,960 

1,950

1,630 

2,430 

3,230 

3,090 

2,980

2,690 

2,500 

2,520 

2,450 

1,450

1,390 

1,250 

1,340 

1,130 

1,800

Secondfoot-days

20,837 

56,171 

103,422

574,025

97,090 

76,750 

105,330 

57,310 

56,940 

56,822 

35,179 

20,076 

19,042

704,969

May

1,330 

1,370 

1,590 

1,790 

1,770

1,240 

1,120 

1,410 

1,430 

1,410

1,340 

1,350 

1,290 

2,210 

3,090

2,740 

3,000 

2,720 

2,710 

2,430

2,290 

2,120 

1,460 

1,650 

1,610

1,820 

1,750 

1,760 

1,670 

1,720 

1,750

Maximum

1,010 

10,500 

5,750

10,500

7,570 

5,900 

10,100 

3,230 

3,090 

2,920 

2,050 

1,030 

1,060

10,500

June

1,720 

1,740 

1,200 

982 

1,530

2,540 

2,680 

2,300 

1,360 

1,590

1,550 

1,310 

1,240 

1,750 

1,800

1,810 

1,870 

1,830 

2,690 

2,920

2,570 

2,280 

2,310 

2,300 

2,260

1,820 

1,250 

1,060 

2,260 

2.30O

July

1,830 

1,780 

1,900 

1,740 

1,920

2,050 

1,630 

1,390 

1,450 

1,370

1,020 

1,010 

986 

940 

806

492 

734 

790 

672 

918

732 

640 

620 

1,130 

922

1,030 

1,050 

1,030 

953 

674 

970

Minimum

135 

533 

758

109

1,290

1,450 

1,280 

1,130 

1,120 

982 

492 

186 

158

135

Aug.

755 

675 

793 

936 

628

336 

565 

619 

595 

362

406 

274 

186 

423 

708

605 

572 

844 

612 

389

808 

871 

932 

848 

892

606 

448 

670 

824 

864 

1,030

Mein

672 

1,872 

3,336

1,573

3,132 

2,741 

3,398 

1,910 

1,837 

1,894 

1,135 

648 

635

1,931

Sept.

1,060 

818 

305 

195 

623

676 

709 

747 

632 

487

654 

710 

736 

574 

749

494

158 

469 

706 

550

483 

521 

386 

564 

657

926 

972 

788 

820 

873

Runoff In 

acre -feet

41,330 

111,400 

205,100

1,139,000

192,600 

152,200 

208,900 

113,700 

112,900 

112,700 

69,780 

39,820 

37,770

1,398,000
NISQUALLY RIVER BASIN

Mineral Creek near Mineral, Wash.

Location. Water-stage recorder, lat. 46°44'20", long. 122 0 08'20", in SW£ sec. 35, T. 15 

fi. , H. 5 E. , three-eighths of a mile downstream from railroad bridge, 1 mile upstream 

from mouth, and 2? miles northeast of Mineral.

Drainage area. 75 square miles.

Records available. June 1942 to September 1950.

Extremes. Maximum discharge during year, 4,790 second-feet Nov. 27 (gage height, 7.38 

feet) ; minimum, 30 second-feet Sept. 22, 23 (gage height, 1.40 feet).

1942-50: Maximum discharge, 5,240 second-feet Dec. 11, 1946 (gage height, 8.25 

feet), from rating curve extended above 2,700 second-feet; minimum, 23 second-feet 

Sept. 10-13, 1944.

Remarks.--Records good. No diversion or regulation.

Rating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet)

(Shifting-control method used Nov. 26 to Dec. 28, 

Jan. 21 to Mar. 4, July 9 to Sept. 14)

1.4 30 2.6 291 4.5 1,360 

1.6 48 2.9 408 5.0 1,780 

1.8 74 3.2 543 5.5 2,250 

2.0 112 3.6 750 6.0 2,770 

2.3 192 4.0 990 6.5 3,340

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39 

37 

37 

79 

204

230 

175 

126 

178 

233

274 

302 

233 

180 

158

131 

119 

106 

97 

91

84 

79 

76 

74 

71

71 

74 

542 

400 

284 

220

Nov.

178 

160 

139 

126 

114

106 

97 

106 

112 

112

240 

723 

659 

633 

501

400. 

324 

274 

236 

208

186 

230 

417 

990 

865

1,320 

3,340 

2,050 

1,400 

1,020

Dec.

865 

1,060 

865 

696 

643

553 

482 

425 

396 

355

321 

306 

291 

280 

291

288 

295 

288 

256 

243

240 

321 

756 

750 

607

538 

1,440 

2,480 

1,360 

990 

750

Jan.

587 

478 

408 

371 

348

367 

348 

298 

274 

284

253

230 

214 

189 

192

186 

a!80 

al75 

740 

2,550

2,660 

2,200 

1,520 

990 

696

577 

474 

408 

351 

298 

249

Feb.

a227 

a222 

a219 

243 

260

348 

306 

336 

306 

284

270 

263 

534 

592 

1,130

1,400 

1,100 

865 

805 

696

618 

587 

874 

2,450 

2,350

1,960 

1,400 

1,020

u__.n- Second 

Month foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

13

5,004 

7,266 

9,431

6,758

19,095

1

................. 1

ember .....................

1,665 

5,963 

8,317 

7,680 

2,863 

3,420 

1,709 

1,444

ter year 1949-50 .......... 163,857

Mar.

805 

723 

1,420 

2,990 

2,880

1,740 

1,160 

895 

750 

623

524

451 

400 

363 

340

515 

1,130 

990 

990 

805

696 

696 

607 

538 

460

434 

442 

408 

375 

383 

430

Maximum

542 

3,340 

2,480

3,340

2,660 

2,450 

2,990 

1,200 

925 

696 

256 

89 

192

3,340

Apr.

925 

835 

675 

572 

529

501 

447 

421 

379 

359

359 

623 

685 

618 

805

1,100 

1,200 

925 

805 

778

723 

670 

563 

492 

447

400 

396 

363 

359 

363

May

379 

392 

375 

396 

425

396 

367 

359 

371 

412

558 

778 

925 

865 

805

750 

750 

654 

553 

529

548 

592 

577 

553 

568

670 

750 

680 

597 

558 

548

Minimum

37 

97 

240

37

175 

219 

340 

359 

359 

256 

61 

43 

31

31

Peak discharge (base, 2,700 sec. -ft .) .--Nov. 27 (5:30 a.m.) 4

June

577 

607 

643 

696 

675

543 

451 

412 

404 

442

492 

496 

430 

388 

367

408 

456 

421 

412 

438

396 

359 

367 

324 

288

256 

263 

284 

291 

277

Mean

161 

576 

627

375

616 

774 

838 

611 

570 

429 

110 

55.1 

48.1

449

,790 sec .-

July

256 

223 

195 

186 

169

158 

141 

131 

139 

119

110 

102 

95 

93 

91

84 

79 

79 

84 

81

76 

70 

66 

63 

61

61 

61 

89 

114 

77 

67

Per 

square 

mile

2.15 

7.68 

8.36

5.00

8.21 

10.3 

11.2 

8.15 

7.60 

5.72 

1.47 

.735 

.641

5.99

Aug.

64 

61 

59 

58 

59

56 

55 

53 

52 

50

49 

43 

45 

44 

64

68 

55 

50 

48 

45

43 

44 

77 

89 

67

59 

54 

52 

49 

47 

45

Sept.

43

42 

41 

41 

40

39 

39 

38 

37 

36

36 

36 

35 

35 

34

33 

32 

32 

32 

32

31 

31 

32 

33 

71

192 

117 

77 

67 

60

Runoff

Inert es

2.48 

8.56 

9.64

67.81

9.47 

10.74 

12.87 

9.08 

8.77 

6.38 

1.70 

.85 

.72

81.26

Acre-feet

9,930 

34,250 

38,540

271,300

37,870 

42,970 

51,500 

36,330 

35,070 

25,510 

6,780 

3,390 

2,860

325,000

ft.; Dec. 28 (2 a.m.)

3,340 sec.-ft.

a No gage-height record; discharge computed on basis of weather, records and records for Green 

River near Auburn.
NISQUALLY RIVER BASIN 77

East Creek near Elbe, Wash.

Location. Water-stage recorder, lat. 46°44'35", long. 122°12'20", in NW^ sec. 32, T. 15

N., K. 5 E., 1^ miles upstream from mouth and 2 miles south of Elbe. 

Drainage area. 10.7 square miles. 

Records available.--August 1918 to September 1922, June 1949 to November 19£0 (discontinued).

Extremes.--Maximum discharge during period October 1949 to November 1950 not determined, 

 probably occurred during period of no gage-height record in January; minimum observed,

1.6 second-feet Sept. 21, 23 (gage height, 0.36 foot).

1918-22, 1949-50: Maximum discharge, 1,430 second-feet Jan. 22, 1919 (gage height,

8.2 feet, datum then in use); minimum, 1.6 second-feet Sept. 15-29, 1918, Sept. 21,

23 1950 

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

Discharge, In second-feet, 1949-50 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.9

4.1

4.1

9.3

27

26

21

18

29

30

39

35

26

20

17.5

14.5

12.5

11.5

10.5

10.5

9.6

8.7

7.3

6.6

5.9

5.8

6.1

76

42

28

21

Nov.

16.5

14

12

11

10.5

10.5

10

11.5

20

25

111

342

178

105

6S

50

40

33

29

26

23

93

63

160

143

307

693

300

193

138

-

Dec.

138

226

138

102

94

77

61

55

51

45

40

38

36

35

38

38

50

45

37

34

33

45

162

190

132

111

277

458

304

196

123

Jan.

88

67

56

50

46

60

54

45

40

56

45

38

35

32

28

26

Feb.

36

34

32

32

32

33

35

40

40

38

36

35

90

170

280

300

25 180

24

25

100

700

500

130

90

75

62

55

48

44

40

38

140

110

90

80

90

250

600

500

200

140

120

_

_

-

Mar.

loo

90

300

450

280

200

140

110

85

7O

62

56

52

50

48

70

200

160

130

110

95

85

75

69

63

60

70

66

58

55

60

Apr.

150

120

95

75

67

62

58

55

53

51

50

70

100

130

170

170

200

170

150

130

120

100

77

62

57

49

52

45

43

48

May

59

62

54

56

58

52

48

50

53

62

96

155

158

127

103

91

89

72

60

60

74

82

69

66

72

89

98

74

63

60

60

June

67

69

70

72

60

43

37

34

34

42

48

43

33

30

28

33

35

29

28

28

23

22

25

July

14

12

10.5

9.6

9.0

8.4

7.6

6.8

11.5

8.1

6.8

6.3

6.0

5.7

5.5

5.3

5.1

5.C

4.8

5.C

4.?

4.e

4.7

22 4.7

18

16.5

16.5

17

16.5

15.5

4.6

4.5

4.5

a

10.5

8.9

7.6

Aug.

6.9

6.2

5.7

5.3

5.0

4.7

4.5

4.3

4.2

4.0

4.0

3.9

3.9

5.0

10

16

11.5

9.0

7.3

6.8

6.1

5.5

9.0

15

11.5

9.6

8.4

7.6

6.8

6.1

5.7

Sept.

4.9

4.5

4.1

4.1

3.7

3.7

3.4

3.2

3.0

3.0

2.7

2.7

2.7

3.4

2.7

2.7

2.7

2.6

2.7

2.2

1.7

1.8

1.6

1.8

12.5

37

19

13

9.5

8.4

-

Note. --No gage-height record Jan. 14 to Apr. 21, July 12-28, July 30 to Aug. 14, Aug. 18 (discharge computed on basis of records for Mineral Creek near Mineral) . Discharge computed from oncedaily staff-gage readings Aug. 19 to Sept. 24. Shifting-control method used Oct. 1-26, Oct. 28 to 

Nov. 4, Nov. 11 to Dec. 6, July 29, Aug. 15 to Sept. 30.

Day

1

2

3

4

5

6

7

Oct.

a7.7

a6.9

a6.2

a8

45

50

45

8 | 48

Nov.

190

181

1123

.

_

.

_

-

Day

9

10

11

12

13

14

15

16

Oct.

43

259

121

56

34

32

27

23

Nov.

^

_

-

_

_

_

-

-

Day

17

18

19

20

21

22

23

24

Oct.

22

50

67

64

50

38

30

28

Nov.

.

-

-

-

-

-

-

-

Day

25

26

27

28

29

30

31

Oct.

48

67

223

326

256

168

125

Nov.

-

-

-

-

-

-

-

a No gage-height record} discharge computed on basis of records for Mineral 

Creek near Mineral.

Monthly discharge, in second-feet, 1949-50

Month

October 1949 .................

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

May...........................

July. .................... ....

October 1950 .................

Secondfoot-days

585.4 

3,234.0 

3,409

-

2,722 

3,763 

3,519 

2,779 

2,372 

1,055.0 

220.7 

219.5 

171. 0

24 , 049 . 6

2,373.8

Maximum

76 

693 

458

-

700 

600 

450 

200 

158 

72 

14 

16 

37

700

326

Minimum

3.9 

10 

33

-

24 

32 

48 

43 

48 

15.5 

4.5 

3.9 

1.6

1.6

6.2

Mean

18.9 

108 

110

-

87.8 

134 

114 

92.6 

76.5 

35.2 

7.12 

7.08 

5.70

65.9

76.6

Per 

square 

mile

1.77 

10.1 

10.3

-

8.21 

12.5 

10.7 

8.65 

7.15 

3.29 

.665 

.662 

.533

6.16

7.16

Runoff

Inohes

2.03 

11.24 

11.85

-

9.46 

13.08 

12.23 

9.66 

8.24 

3.67 

.77 

.76 

.59

P3.58

8.25

Acre-feet

1,160 

6,410 

6,760

-

5,400 

7,460 

6,980 

5,510 

4,700 

2,090 

438 

435 

339

47,680

4,710
78 NI3QUALLY RIVER BASIN

Mashel River near La Grande, Wash.

Location. --Water-stage recorder, lat. 46°51'27", long. 122°18'12", -fin NE^- sec. 21, T. 16

 N., K. 4 E., 2 miles upstream from mouth and 2 miles northeast of La Grande. Datum of 

gage is 619.35 feet above mean sea level, datum of 1929.

Drainage area.--79 square miles.

Records available.--October 1940 to September 1950.

Average discharge.--1Q years, 280 second-feet.

Extremes. Maximum discharge during year, 2,770 second-feet Feb. 24, Mar. 5; maximum gage

 height, 7.24 feet Feb. 24; minimum discharge, 11.5 second-feet Oct. 2, 3 (gage height, 

1.81 feet).

1940-50: Maximum discharge, 7,980 second-feet Dec. 11, 1946 (gage height, 9.30 

feet, from rating curve extended above 3,200 second-feet; minimum, 7.2 second-feet July 

6, 7, 1945.

Remarks.--Records good except those for periods of ice effect or shifting control, which 

are fair. Small diversion for city of Eatonville water supply. Some regulation by 

millpond in Eatonville.

Bating tables, water year 1949-50, except periods of ice effect or shifting control 

(gage height, in feet, and discharge, in second-feet)

1.8 

2.0 

2.2 

2.5 

2.8

26

56

127

210

to Dec. 23 

3.1 

3.5 

4.0 

4.5

298

422

597

805

24 to Sept. 30

3.1 195 5.0

3.5 335 5.5

545

790

4.0 

4.5

6.0 

6.7

5.0 1,060

1,060

1,370

1,740

2,360

Discharge, in second-feet, water year October 1949 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Oct.

14

11.5

11.5

38

160

174

149

99

127

202

162

202

146

101

77

69

58

51

42

41

21 38

22

23

24

25

26

27

28

29

30

31

35

32

30

27

29

35

329

251

146

106

Nov.

79

62

53

46

42

36

34

36

39

41

75

350

313

455

325

216

157

124

101

84

73

84

222

271

384

387

971

655

506

506

-

Dec.

390

578

438

322

283

248

*202

176

174

151

130

127

149

160

176

199

222

213

160

146

188

422

889

765

431

359

640

1,300

*970

690

455

Jan.

316

230

155

155

119

214

230

141

108

241

155

96

60

45

35

33

30

31

300

1,000

1,500

2,000

860

600

400

320

280

230

180

150

130

Month

October .......................

November ......................

December ......................

Calend&r year 1949 .........

January ......... .............

February ....... ..............

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

April ........... ..... .......

May . . ........................

June ..........................

July ........ .................

August ........................

September ..... ...............

Water year 1949-50. .........

Feb.

110

*105

110

120

170

250

370

504

363

316

276

261

527

563

970

1,210

865

665

635

500

423

439

861

*2,310

2,080

1,820

1,150

790

_

-

Secondfoot days

2,993

6,727

11,753

76,343

10,344

18,763

17,575 

9,970

8 1 281 

5,721

1,901

873

939.5

95,840.5

Mar.

595

514

690

1,860

2,170

1,270

890

665

504

423

343

287

254

234

227

261

715

740

690

536

443

486

423

375

302

265

313

302

254

268

276

Maximum

329

971

1,30C

'

2,OOC

2 31C

2^17C

55*

42i

30!

132

46

lee

2,31C

Apr.

486

496

419

335

302

324

280

258

247

224

221

473

554

427

391

504

550

427

363

391

371

320

268

224

208

183

198

195

170

161

-

May

176

189

186

363

375

305

254

224

211

217

268

415

423

375

324

280

302

316

276

247

254

276

234

201

201

258

287

230

217

208

189

Minimum

11.5

34

127

10

30

105

227

161

176

144

29

18.5

13

11.5

June

205

217

221

244

221

170

180

217

173

189

221

198

167

152

150

164

205

180

167

176

158

144

251

302

234

186

161

158

155

155

-

Mean

96.5

224

379

209

334

670

567

332

267

191

61.3

3l!3

263

July

132

111

96

94

89

84

76

67

71

67

61

56

51

51

46

45

42

40

49

54

43

39

36

33

32

30

29

54

103

67

53

Per 

square 

mile

1.22

2.84

4.80

2.65

4 23

6 «48

4)20

3.38

2.42

.776

.357

.396

3.33

Aug.

45

37

34

32

32

30

30

29

27

27

24

23

22

22

24

30

28

24

22

19.5

18.5

19.5

46

46

39

30

28

23

22

21

18.5

Sept.

18.5

18.5

17.5

17.5

17.5

16.5

16.5

15

15

15

15

14

15

15

15

15

14

13

13

14

13

15

15.5

17.5

65

186

124

84

60

49

-

Runoff

Inches

1.41

3.17

5.53

3 3 * 94

4.87

8 , 83

4] ',69

3 90

2 69

 89

.41

.44

45. 10

Acre feet

5,940

13,340

23,310

151,400

20 520

37^220

34,860

19,780

16,430

11 350

3^770

1,730

1,860

190,110

Peak discharge (base, 1,500 sec.-ft.). Dec. 23 (5:30 p.m.) 1,700 sec.-ft.; Dec. 28 (12:30 a.m.) 

1,780 aeo.-rt.J about Jan. 22 (time and discharge unknown); Feb. 15 (10 p.m.) 1,580 set;.-ft.j Feb. 24 

(3t30 a.m.) 2,770 sec.-ft.; Mar. 5 (6:30 a.m.) 2,770 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Jan. 13 to Feb. 7 (no gage-height record Jan. 

19"^2~3"7 Feb. 5-7). Shifting-control method used Feb. 24 to Mar. 6.
NISQUALLY RIVER BASIN 79

Ohop Creek near Eatonville, Wash.

Location.--Water-stage recorder, lat. 46°52'50", long. 122°16'38", in SEij see. 10, T. 16 

N., R. 4 E., 400 feet downstream from Lynch Creek, 600 feet downstream from outlet of 

Ohop Lake, and 1 mile northwest of Eatonville. Datum of gage is 519.8 feet above mean 

sea level (from stadia traverse).

Drainage area.--35.0 square miles.

Records available.--June 1927 to October 1932. September 1941 to September 1950.

Average discharge. 14 years, 64,0 second-feet.

Extremes.--Maximum discharge during year, 615 second-feet Feb. 25 (gage height, 3.89 feet); 

minimum, 4.0 second-feet Sept. 21, 22, 23.

1927-32, 1941-50: Maximum discharge, 1,600 second-feet Dec. 11, 1946 (gage height, 

5.97 feet); minimum, 2.3 second-feet Aug. 22, 23, 1944.

Remarks. Records good except those for periods of shifting control, ice effect, or no gageheight record, which are fair. No diversion. Natural regulation in Ohop Lake.

Discharge, in second-feet, water year October 1949 to September 195C

Day

1 

2 

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.0

9.0 

8.2 

24 

57

46 

36 

30 

30 

33

30 

36 

29 

24 

22

20 

19 

18 

17.5 

17.5

17 

16 

15 

14.5 

14.5

15 

17.5 

98 

68 

49 

42

Nov.

37 

33 

31 

29 

27

26 

24 

24 

25 

24

25 

73 

100 

121 

95

76 

63 

55 

48

42

38 

38 

70 

80 

93

99 

191 

162 

141 

146

Dec.

123 

139 

128 

108 

93

72 

73 

66 

62 

56

50 

50 

56 

58 

59

70 

68 

70 

62 

55

70 

151 

186 

206 

160

149 

204 

298 

238 

192 

156

Jan.

128 

106 

88 

84

72

90 

116 

102 

90 

106

104 

90 

*77 

71 

68

62 

b58 

55 

103 

362

433 

404 

349 

260 

a!80

a!50 

a!30 

allO 

a95 

a8 8 

a84

Month

Ootc 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Julj 

Augl 

Sept

Wa

mber

lendar year 194S 

ary

h ..... ............ ... . .

st

ember .....................

ter year 1949-50 ..........

Feb.

80 

77 

73 

84 

109

137 

124 

149 

142 

139

134 

129 

162 

167 

192

204 

188 

167 

162 

146

131 

142 

228 

*560 

578

510 

404 

293

Secondfoot-days

881.7 

2,036 

3,528

20,393.3

4,315 

5,611 

5,318 

3,231 

2,022 

666.5 

381.3 

432.4 

380.6

28,803.5

Mar.

238 

204 

216 

445 

510

390 

272 

216 

180 

158

141 

124 

115 

109 

109

116 

180 

171 

151 

134

121 

118 

112 

108 

99

90 

90 

96 

96 

103 

106

Maximum

98 

191

298

433

433 

578 

510 

169 

131 

47 

21 

34 

68

578

Apr

149 

169 

162 

136 

123

114 

102 

95 

90 

84

79 

106 

126 

118 

114

142 

146 

131 

121 

114

103 

93 

90 

82 

77

72 

76 

77 

72 

68

May

67 

67 

63 

129

131

116 

108 

109 

85 

76

75 

75 

71 

64 

58

53 

55 

57 

55 

52

51 

49 

47 

43 

42

41 

41 

38 

37 

35 

32

Minimum

8.2 

24 

50

6.5

55

73 

90 

68 

32 

12 

7.5 

8.0 

4.3

4.3-

June

30 

28 

25 

24 

21

20

28 

35 

28 

23

23 

20 

19 

18 

17.5

16 

15 

14.5 

14 

13

12.5 

12 

31 

37 

34

25 

21 

18 

18 

18

Mean

28.4 

67.9 

114

55.9

139 

200 

172 

108 

65.2 

22.2 

12.3 

13.9 

12.7

78.9

July

17 

15 

16 

16 

15

14.5 

14.5 

14 

20 

16

14.5 

13 

12.5 

12 

11.5

11 

11 

9.8 

9.8 

9.8

9.0 

8.5 

8.2 

8.0

7.8

7.8 

7.5 

9.8 

21 

11 

9.8

Per 

square 

mile

0.811 

1.94 

3.26

1.60

3.97 

5.71 

4.91 

3.09 

1.86 

.634 

.351 

.397 

.363

2.25

Aug.

9.0 

8.2 

8.0 

8.0 

8.0

8.0 

12 

34 

30 

26

21 

20 

17 

14.5 

13

14.5 

12.5 

11.5 

11 

9.8

9.4 

all 

a!5 

a!4 

a!3

13 

12.5 

12.5 

12 

12 

12

Sept.

11 

10 

10.5 

10.5 

10.5

10 

9.8 

9.8 

9.4 

8.9

6.6 

6.2 

5.9 

5.9

5.6

5.6 

5.2 

5.2 

4.9 

4.9

4.3 

4.3 

7.1 

10.5 

25

68 

36 

26 

23 

20

Runoff

Inches

0.94 

2.16 

3.75

21.67

4.58 

5.96 

5.65 

3.43 

2.15 

.71 

.41 

.46 

.40

30.60

Acre-feet

1,750 

4,040 

7,000

40,460

8,560 

11,130 

10,550 

6,410 

4,010 

1,320 

756 

858 

755

57,140

Peak discharge (base, 270 sec. -ft.) . Nov. 27 (8:30 a.m.) 276 sec. -ft.: Dec. 28 (It30 to 2 a.m.)

349 sec.-ft.5 Jan. 21 (7:30 to 10 p.m.) 433 sec.-ft.j Feb. 25 (7:30 a.m.) 615 see.-ft.5 Mar. 5 (7 to 

9 a.m.) 543 sec.-ft.

* Winter discharge measurement made on this day.

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

b Stage-discharge relation affected by Ice.

Note. Shifting-control method used Nov. 28 to Jan. 24, Feb. 1 to Aug. 21.
so

Location.--Water-stage recorder, lat. 46°5C 1 00", long. 122°27'10", in NWijNEv sec. 20, T.

 TFTT7, R. 3 E. , a quarter of a mile upstream from m.'Uth and 7 miles southeast of McKenna. 

Drainage area.--£7.2 square miles.

 able.--Hovember neuritis ''/cii_Ld u j_e . --i^u v-iauei ±c*±^ 1944 tu LU ivj November v -muei J-^L."-' 1950 ^ (discontinued). ^ j-ov uii L xii 1 .* m ; .

Kxfrernes. Maximum discharge during period October 1949 to November 1350, 358 secona-feet 

 Jan. 23 (gage height, 3.03 feet]: minimum, 0.7 second-foot Sept. 16 (gage height. 0.50

fout} .

1944-50: Maxim un discharge, that of Jan. 23, 1950; maximum gage height, 3.20 fe<

Dec. 15, 1946; minimum discharge, 0.7 second-foot Sept. 9, 1949, Sept. 16, 1950. 

Remarks.--Rec^rdi good except those for periods of shifting control , which are fair, at

No diversion. Natural

Discharge, In second-feet, 1949-50 

1349-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.4

1.4

1.6

1.8

2.8

3.2

2.6

2.2

1.4

1.7

1.4

1.1

1 . 2

1.2

1.1

1.0

1.0

1.0

1.1

1.0

1.0

1.0

.9

.8

.9

1.0

1.1

4.8

7.5

5.6

3.8

Nov.

3.2

2.6

2.4

2.2

1.9

1.8

1.6

1.5

1.4

1.4

8.9

23

25

25

24

15.5

13

11

6.9

7.0

7.8

11.5

17.5

25

25

34

52

55

54

58

-

Dec.

52

60

60

50

43

41

36

*52

30

28

27

27

31

29

28

30

31

34

33

30

34

42

48

67

59

60

79

138

118

110

98

Jan

85

72

60

56

50

67

124

101

88

91

98

83

62

54

b54

b45

a43

a42

a41

118

270

318

337

240

156

158

134

118

a 100

a80

a 70

Feb

a65

aSO

a60

60

62

74

77

34

107

*101

101

101

107

103

100

100

101

91

90

8E

76

73

79

225

302

310

270

207

_

_

-

Mar.

166

141

134

322

263

207

168

138

122

105

93

35

76

72

69

98

100

86

82

73

69

69

65

60

55

55

59

54

51

52

Apr. | May

54) 27

56 27

56 1 26

50

47

44

42

40

40

36

35

27

30

30

27

25

24

22

22

421 20

58

51

46

5°

46

44

47

44

41

33

40

38

35

33

32

33

30

28

18.5

17.5

17

15

15

16

15

14

13

June

6.8

6.2

6. 's

6.2

6.0

7.0

7.2

6.8

7 5

6 0 ±',"5

4.3

July

2.8

2.8

2.3

2 .1 z!i

2.0

1.9

1.8

1.3

1.9

2.0

1.8

1.8

4.4i 1.7

4.6

4.6

4.3

4.1

3.6

3.5

3.2

12.5! 3.0

11.5 3.2

11

10

9.5

9.5

8.3

7.8

7 2 ?!o

3.5

3.2

3.8

3.8

3.5

3.3

2.8

1.5

1.5

1.4

1.4

1.7

1.9

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.9

2 5

2!o

Aug

1.7

1.5

1.4

1.4

1.4

1.9

2.2

1.7

1.8

2.2

1.8

Sept

1.4

1.3

1.4

1.5

1.4

1.7

1.5

1.2

1.5

1.1

2 5

1.6 1 1.4

1.5

1.5

1.8

2.6

2.3

2.4

1.8

1.5

1.5

1.8

2.5

2^0

2.2

3.0

1.5

1.3

1.4

1.4

1.1

1.1

1.1

.9

1.0

1.0

.9

1.1

1.1

1.1

1.1

1.4

3.0

3.0

2.2

1.8

1.3

ak discharge (base, 150 sec.-ft.).--Dec. 28 (l p.m.) 145 sec.-ft.; Jan. 7 (4 p.m.) 134 sec.-ft,; 

Jan. 23 (9:30 a.m.) 558 sec.-ft.; Feb. 25 (7 p.m.) 341 sec.-ft.; Mar. 5 (ll a.m.) 323 sec.-ft. 

+ Winter discharge neasurement made on this day.

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

b Stige-discharge relation affected by ice. 

Note.--Shifting-control method used Oct. 1 to Nov. 10, Apr. 28 to July 18, July 24 to Sept. 30.

Day

1

2

3

4

5

6

Oct.

1.4

1.3

1.2

1.3

1.9

3.5

Nov.

19

32

-

-

_

-

Day

7

8

9

10

11

12

Oct.

3.2

2.8

2.4

6.2

11

6.2

Nov.

_

_

-

_

_

_

Day

13

14

15

16

17

18

Oct .

4.6

5.2

7.5

6 . 2

4.8

4.6

Nov.

_

_

-

_

_

_

Day

19

20

21

22

23

24

Oct.

7.2

9.2

7.8

6.8

5.6

4.8

Nov.

_

_

-

_

_

_

Day Oct .

25 4.6

26 6.5

27 11

28 22

29 25

30 21

31 20

Nov.

_

_

-

_

_

-

-

Note. Shifting-control method used Oct. 1-7, Oct. 13 to Nov. 2.

Monthly discharge, In second-feet, 1949-50

Month

Calend&r year 1949 .........

September ........ ..........

Water year 1949-50 .......... 

October 1950 ...................

Secondfoot-days

59.6 

521.1 

1,585

8,486.3

3,415 

3,278 

3,383 

1,281 

542.3 

143.4 

S^.O 

56.8 

44.0

14,366.2

226.8

Maximum

7.5 

58 

138

200

337

310 

322 

58 

30 

7.5 

2.8 

3.0 

3.0

337

25

Minimum

0.8 

1.4 

27

.8

41 

60 

51 

28 

7.0 

2.8 

1.4 

1.3 

.9

,8 

1.2

Mean

1.92 

17.4 

51.1

23.3

110 

117 

109 

42.7 

17.5 

4.78 

1.84 

1.83 

1.47

39.4 

7.32

Per

square 

mile

0.071 

.640 

1.88

.857

4.04 

4.30 

4.01 

1.57 

.643 

.176 

.068 

.067 

.054

1.45 

.269

Runoff

Inches

0.08 

.71 

2.17

11.61

4.67 

4.48 

4.63 

1.75 

.74 

.20 

.08 

.08 

.06

19.65 

.31

Acre-feet

118 

1,030 

3,140

16,820

6,770 

6,500 

6,710 

2,540 

1,080 

284 

113 

113 

87

28,480 

450
CHAMBERS CREEK BASIN 81

Clover Creek near Tllllcum, Wash.

Location. Water-stage recorder, lat. 47°08'40", long. 122°30'1Q", on west line sec. 12, 

T. 19 N., R. 2 E., IT niles upstream from mouth and 2j miles northeast of Tillicum.

Drainage area.--55 square miles.

Records available.--June 1949 to September 1950.

Extremes.--Maximum discharge during year, 290 second-feet Mar. 6 (gage height, 4.20 feet), 

but may have been higher during period of no gage-height record in January; no flow 

Oct. 20-26, 29, Nov. 1-9.

1949-50: Maximum discharge, that of Mar. 6, 1950; minimum, that of Oct. 20-26, 29, 

Nov. 1-9, 1949.

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

and those for periods of no gage-height record, which are poor. Some diversion for 

domestic use. Probably some regulation.

Rating table, water year 1949-5O, except periods of shifting control 

(gage height, In feet, and discharge, in second-feet)

1.2

1.4 

1.6 

1.8

3.2 

5.0

1?

Discharge, in second feet, water ye

2.0 

2.3 

2.6 

2.9

3.2

3.5 

3.8 

4.2

115

154

198

290

October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.3

.3

.2

.2

.2

 2

Nov.

0

0

0

0

0

0

.4! 0

.1

.3

.2

1.0

.3

.3

.2

.1

.1

.1

 3

0

0

0

0

0

0

0

.2

1.6

0

.1

.1

0

0

.2

.7

4.5

3.4

3.6

3.8

3.8

3.4

3.4

3.2

2.8

2.6

4.3

3.4

3.8

5.9

7.1

14

15

15.5

16

-

Dec

17.5

19

19

19.5

20

21

21

21

20

20

20

22

20

20

20

21

22

22

22

22

Jan.

f75

f77

f76

f70

76

82

88

92

96

98

102

104

104

105

104

103

102

100

120

140

22 160

22 210

26 269

26 231

28

30

195

168

40 155

48 145

58 135

f67 130

f73 120

Month

October ... .............. . . .

November ............... .....

December . . ...... ............

Calendar year ..... ...

January .... ...... ...........

February ....... . ... . ......

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

April . .......... ....

May . . ............ . . ......

June . . ........ . . . . . . . . .

July . . ........ .........

August .... ... ..........

September ...... ..... ........

Water year 1949-50 ..........

Feb.

115

110

110

110

110

110

110

111

119

122

120

120

123

126

127

127

123

121

117

115

116

113

116

126

157

194

212

206

_

_

-

Secondfoot-days

7.0

120.4

849.0

3,832

3,586

5 951

3)621

2 , 036

1,124

616.5

353.7

191.2

22,287.8

Mar.

186

171

167

189

242

284

255

225

203

194

189

172

165

158

151

151

172

210

229

242

225

208

201

192

ISO

172

171

170

164

158

155

Maximum

1.6

16

73

269

212

284

151

90

48

28

13.5

9.6

284

Apr.

151

148

140

137

136

139

128

127

123

119

120

120

121

122

123

124

125

125

123

122

119

117

113

112

104

100

100

97

94

92

May

90

89

86

85

83

80

78

76

74

72

70

68

67

66

65

63

62

62

58

57

56

57

57

56

55

54

52

f51

f49

49

49

Minimum

0

0

17.5

70

110

151

92

49

30

13.5

8.8

4.5

0

June

48

47

44

45

45

44

44

42

41

41

39

39

39

38

38

36

35

34

33

34

33

33

32

32

32

32

32

32

30

30

ean

0.23

4.01

27.4

124

128

192

121

65.7

37.5

19 9

11.4

6.37

61.1

July

28

27

26

26

26

26

25

24

24

24

22

22

22

21

20

19.5

18.5

18

17.5

17

16.5

15.5

15

15

15

14.5

14.5

15

13.5

14.5

14

Per

square 

mile

0.0042

.073

.498

2.25

2.33

3 49

2.20

1.19

. 682

. 362

.207

.116

1.11

Aug.

13.5

13

13

13

12.5

12.5

12.5

12

12

12

12

12

11.5

11.5

11.5

11.5

11.5

11

11

11

11

11

11.5

11

11

10.5

10

10

9.6

8.8

8.8

Sept.

8.8

8.4

8.0

8.0

7.7

7.4

6.8

fi.5

6.5

5.3

5.3

5.0

4.8

4.8

4.8

4.8

4.8

4,8

5.0

5.0

4.8

4.8

4.5

6.5

9.6

7.7

7.4

7.4

8.0

8.0

Runoff

Inches

0.005

.08

.57

2.59

2.42

4.02

2.45

1 . 38

.76

.42

.24

.13

15.065

Acre-feet

14

239

1,680

7,600

7,110

11,800

7,180

4,040

2,230

1,220

702

379

44,190

f Computed on basis of partly estimated gage-height record.

Note.--No gage-height record Jan. 5-22, Jan. 27 to Feb. 7, Apr. 11-16, Aug. 6-21; discharge computed on basis of recorded range in stage and records for Chambers Creek below Lead- Creek, near 

Steilacoom. Shifting-control method used Oct. 5-20, Oct. 30 to Nov. 14, July 13 to Aug. 5, Aug. 22 

to Sept. 30.
82 CHAMBERS CREEK BASIN

Chambers Creek "below Leach Creek, near Stellacoom, tfash.

Location.--Water-stage recorder, lat. 47°12', long. 122°32', in NE^NE^ sec. 27, T. 20 N., 

R. 2 E., a quarter of a mile downstream from Leach Creek, lj miles downstream from outlet of Steilacoom Lake, and 3 miles northeast of Steilacoom.

Records available.--December 1937 to September 1940, July 1943 to September 1950.

Extremes.--Maximum discharge during year, 611 second-feet Mar. 4 (gage height, 3.06 feet); 

minimum, 36 second-feet Oct. 23.

1937-40, 1943-50: Maximum discharge, that of Mar. 4, 1950; minimum, 34 second-feet 

Aug. 16, 1940, Aug. 30, Oct. 25, 1944.

Remarks.--Records fair. Discharge partly regulated by gates at outlet of Steilacoom Lake. 

Some diversions for domestic use and for irrigation of small garden plots.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

51 

54 

56 

55 

54

51 

51 

47 

49 

52

50 

47 

45 

44 

43

41 

41 

39 

39 

37

37 

38 

38 

40 

39

40 

47 

66 

47 

45 

46

Nov.

47 

46 

46 

45 

45

44 

45 

45 

46 

47

51 

68 

58 

56 

54

52 

51 

51 

52 

51

52 

55 

55 

57 

61

63 

74 

63 

65

66

Dec.

68 

73 

72 

73 

76

76 

79 

79 

80 

81

81 

a83 

a84 

a8 6

a86

a86 

a88 

a90 

a90 

a90

a90 

a90 

113 

100 

100

101 

130 

154 

138 

142 

158

Jan.

163 

172 

184 

187 

189

212 

216 

218 

220 

239

235 

235 

237 

237 

237

237 

231 

229 

251 

291

321 

356 

368 

394 

394

381 

344 

344 

321 

291 

271

Feb.

271 

251 

249 

243 

241

251 

241 

261 

251

261

251 

251 

261

261 

261

271 

271 

261 

271 

261

261 

261 

271 

301 

331

368 

394 

456

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194E 

ary

1.......................... .............

ter year 1949-5O .......................

Mar.

431 

456 

506 

506 

596

566 

566 

551 

536 

536

506 

481 

456 

444 

394

394 

418 

418 

444 

444

418 

418 

406 

394 

381

381 

381 

368 

368 

368 

356

Apr.

344 

344 

331 

321 

311

311 

301 

291 

291 

281

281 

291 

261 

247 

251

261 

261 

251 

251

261

261 

251 

249 

241 

235

233 

229 

223 

222 

218

Secondfoot-days

1,429 

1,611 

2,937

39,372

8,205 

7,783 

13,888 

8,104 

5,434 

3,398 2,477" 

2,045 

1,792

59,103

May

218 

212 

210 

208 

206

201 

199 

197 

193 

189

187 

184 

180 

172 

170

170 

172 

169 

167 

163

161 

158 

156 

156 

154

152 

151 

149 

145 

143 

142

Maximum

66 

74 

158

300

394 

456 

596 

344 

218 

140 

89 

70 

68

596

June

140 

136 

135 

133 

130

130 

132 

130 

125 

122

122

119 

118 

116 

113

110 

110 

110 

108 

103

89 

93 

94 

99

100

99 

96 

97 

96 

93

July

8S 

8£ 

BE

ee

8£

ee

BE

ee 

ee 

ee

es

86

ee

BE 

BE

65 

64 

82 

83 

81

8C

76 

69 

68

66

64

65 

69 

68 

68 

68

Minimum

37 

44 

68

37

163 

241 

356 

218 

142 

89 

64 

61 

57

37

Aug.

67 

67 

67

67 

67

68 

67 

65 

67 

68

68

67 

66 

66 

7O

69 

67 

67 

67 

66

65 

65

67 

67 

65

65 

63

62 

61 

61 

61

Mean

46.1 

53.7 

94.7

108

265

278 

448 

270 

175 

113 

79.9 

66.0 

59.7

162

Sept.

eo

61 

61 

61 

60

60 

60 

59 

59 

59

59 

59 

59 

58 

58

59 

58 

57 

57 

57

57 

57 

57 

62 

65

68 

62 

61 

61 

61

Runoff In 

acre-feet

2,830 

3,200 

5,830

78,110

16,270 

15,440 

27,550 

16,070 

10,780 

6,740 

4,910 

4,060 

3,550

117,200

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

nearby streams.
PUYALLUP RIVER BASIN

Puyallup River near Orting, Wash.

Location.--Water-stage recorder, lat. 47°02'30", long. 122°12'20", in SW^ sec. 17, T. 18 

W., K, 5 E., 4 miles south of Orting and 7j miles upstream from Carbon River.

Drainage area.--170 square miles.

Records available.--September 1931 to September 1950.

Average discharge.--19 years, 698 second-feet.

Extremes.--Maximum discharge during year, 9,780 second-feet Nov. 27 (gage height, 7.80 

feet); minimum, 144 second-feet Oct. 4; minimum daily, 234 second-feet Oct. 3.

1931-50: Maximum discharge not determined, occurred Dec. 9 or 10, 193?, when waterstage recorder was not operating; minimum, 53 second-feet Mar. 16, 1941; minimum daily, 

123 second-feet Dec. 4, 1936.

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

Water diverted for Electron plant of Puget Sound Power & Light Co., returred to river 

above gage. Some regulation by Electron power plant.

Revisions [water years).--W 832: Drainage area. W 932: 1937-39. W 962: 1934.

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 28 to Nov. 26)

Oct. 1 to Nov. 26 Nov. 27 to Sept. 30

3.1 225 3.8 520 3.O 255 4.5 1,260 

3.3 290 4.1 720 3.2 33O 5.0 1.83O 

3.5 370 4.5 1,060 3.5 465 5.5 2,590 

3.8 65O 6.0 3,69O 

4.1 880 6.5 5,040

Discharge, in second-feet, water year October 1949 to September 1950

Cay

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

262 

240 

234 

470 

574

487 

406 

334 

936

916

744 

768 

562 

476 

44O

435 

366 

338 

290 

283

269 

262 

258 

255 

255

255 

269 

1,600 

898 

636 

532

Nov.

482 

435 

402 

388 

384

346 

326 

334 

314

306

346 

848 

97O 

1,180 

856

671 

562 

470 

487 

410

374 

415 

784 

,350 

,270

,480 

,440 

,9OO 

,300 

,100

Dec.

961 

1,420 

1,050 

856 

760

650 

562 

498 

470 

445

402 

402 

370 

379 

410

425 

420 

402 

384 

388

392 

544 

800 

997 

776

720 

1,370 

3,OOO 

1,960 

1,400 

1,150

Jan.

960 

750 

620 

556 

562

601 

629 

538 

482 

509

476 

430 

350 

310 

330

330 

310 

310 

560 

2,600

3,340 

3,000 

2,180 

1,480 

1,100

900 

800 

73O 

660 

610 

580

Feb.

540 

500 

500 

540 

640

736 

622 

685 

650

601

587 

562 

816 

840 

1,120

1,320 

1,110 

952 

916 

832

752 

776 

1,130 

4,610 

3,690

3,OOO 

2,100 

1,540

»i«-*v. SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194C 

ary

ember .....................

15,050 

24,930 

24,763

37,574

27,593 

32,667 

35,668 

21,669 

22,641 

35,290 

29,747 

18,168 

12,102

ter year 1949-50 ......... 300, 288

Peak discharge (base, 4.5OO sec. -ft.). He

6,640 sec. -ft.; Mar. 4 (12 m.) 5,970 aec.-ft 

Note. --No gage-height record Dec. 30 to Js 

computed on basis of records for station at

Mar.

1,250 

1,090 

1,710 

4,340 

3,500

2,500 

1,710 

1,350 

1,100 

952

824 

713 

643 

594 

580

713 

1,540 

1,350 

1,180 

979

832 

824 

736

671 

615

568 

574 

568 

526 

556 

580

Maximum

1,500 

4,440 

3,000

4,440

3,340 

4,610 

4,340 

1,170 

1,100 

1,590 

1,480 

997 

736

4,610

Apr.

1,170 

1,080 

934 

776 

728

706 

629 

587 

556 

509

476 

692 

824 

720 

792

1,080 

1,110 

907 

816 

824

800 

736 

678 

601 

550

492 

514 

492 

45O 

440

May

450 

455 

430 

556 

587

550 

509 

476 

455 

470

544 

856 

1,010 

970 

907

872 

880 

840 

706 

650

7O6 

856 

792 

736 

752

9O7 

1,100 

961 

880 

898 

880

June

979 

1,060 

1,100 

1,290 

1,270

997 

880 

940 

792 

889

1,050 

1,110 

1,080 

1,080 

997

1,190 

1,420 

1,370 

1,480 

1,540

1,480 

1,420 

1,540 

1,170 

997

889 

1,020 

1,230 

1,540 

1,590

Minimum Mean

234 485 

306 831 

370 799

234 651

310 890 

500 1,167 

526 1,151 

440 722 

430 730 

792 1,176 

657 960 

465 586 

272 403

234 823

July

1,480 

1,320 

1,260 

1,280 

1,280

1,220 

1,060 

961 

1,090 

934

736 

728 

848 

880 

816

728 

720 

824 

1,140 

952

864 

934 

979 

1,050 

1,020

898 

760 

816 

848 

657 

664

Per 

square 

mile

2.85 

4.89 

4.70

3.83

5.24 

6.86 

6.77 

4.25 

4.29 

6.92 

5.65 

3.45 

2.37

4.84

Aug.

713 

736 

587 

514 

487

482 

514 

482 

476 

465

514 

509 

504 

470 

872

997 

720 

706 

664 

664

657 

636 

706 

657 

514

492 

526 

465 

487 

470 

482

Sept.

520 

526 

587 

509 

430

406 

384 

388 

392 

397

4O2 

374 

350 

362 

346

338 

314 

326 

314 

330

346 

362 

342 

374 

580

736 

455 

350 

290 

272

Runoff

Inches Acre-feet

3.29 29,850 

5.45 49,450 

5.42 49,120

51 .97 471,200

6.04 54,730 

7.15 64,790 

7.80 70,750 

4.74 42,98O 

4.95 44,910 

7.72 70,000 

6.51 59,000 

3.97 36,040 

2.65 24,000

65.69 595.600

v. 27 (6:30 a.m.) 9,720 sec. -ft.; Feb. 24 (8:30 a.m.)

n. 3, Jan. 14-20, Jan. 25 to Feb. 5, Mar. 5, 6; discharge 

Alderton.
84 PUYALLUP RIVER BASIN

Puyallup River at Alderton, Wash.

Location.--Water-stage recorder, lat. 47°11'05", long. 122°13'45", on line between sec. 

25, T. 20 N., R. 4 E., and sec. 30, T. 20 N., R. 5 E., at county bridge No. 78 on State 

Highway 5E, 1 mile north of Alderton, 1 mile south of Stunner, and if miles upstream 

from Stuck River.

Drainage area.--438 square miles.

Records available.--October 1914 to February 1927, October 1943 to September 1950.

Average discharge.--19 years (1914-26, 1943-50), 1,586 second-feet.

Extremes.--Maximum discharge during year, 12,400 second-feet Nov. 27 (gage height, 53.74 

fe"eTT; minimum, 469 second-feet Oct. 3 (gage height, 47.57 feet).

1914-27. 1943-50: Maximum discharge, 2D.600 second-feet Dec. 11, 19^6 (gage height, 

56.80 feet); minimum observed, 228 second-feet Sept. 22, 1924.

Remarks.--Records excellent except those for periods of no gage-height record, or shifting 

control, which are fair. Water diverted for Electron power plant of Pufet Sound Power 

& Light Co. returned to river above gage. Some regulation by Electron power plant.

Revisions.--W 870: Drainage area.

Rating table, water year 1949-50, except period of shifting control 

(gage height, In feet, and discharge, In second-feet)

47.7 495 49.0 1,570 

48.0 615 49.5 2,300 

48.3 825 50.0 3,160 

48.6 1,110 50.5 4,130

Discharge, in second-feet, water year October

Day

1 

2

3 

4

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

541 

507 

498 

801 

1,440

1,170 

991 

825 

1,780 

2,540

1,730 

al,750 

al , 400 

al,200 

al,050

al , 000 

a950 

825 

745 

682

663

621 

600 

627

621

610 

669 

3,780 

2,720 

1,580 

1,220

Nov.

1,080 

991 

879

834 

801

753 

717 

731 

710 

675

696 

1,730 

2,540 

2,890 

2,300

1,690 

1,360 

1,140 

1,100 

944

834 

861 

1,830 

3,070 

3,070

3,160 

8,340 

5,630 

4,030 

3,350

Dec.

2, BOO 

3,730 

3,070 

2,460

2,060

1,840 

1,580 

1,370 

1,300 

1,150

953 

962 

934 

944 

al.OOO

al,080 

al,080 

al,050 

a980 

a980

al.OZO 

al , 400 

al,900 

a2,5CO 

a2 , OOO

al,900 

a4,500 

a7 , 400 

5,190 

3,830 

2,890

Jan.

2,380 

1,940

1,620 

1,520 

1,380

1,700 

1,860 

1,530 

1,370 

1,370

1,310 

1,170 

1,040 

906 

934

934

834 

817 

1,380 

6,810

7,830 

6,810 

5,630 

3,830 

2,720

2,460 

2,060 

1,740 

1,500 

1,440 

1,360

Feb.

1,320 

1,200

1,180 

1,230 

1,450

1,670 

1,560 

1,710 

1,580 

1,530

1,480 

1,440 

2,060 

2,220 

2,890

3,350 

2,890 

2,460 

2,380 

2,060

1,900 

1,990 

2,540 

8,360 

7,570

6,570 

4,970 

3,640

Hnn+h SecondMonth foot-days

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

36,136 

58,736 

65,853

lendar year 1949 ......... 569,279

ary

h .......... ....

1 . . . . ................

st .....................

ember .....................

70,185 

75,200 

86,090 

57,960 

55,870 

78,400 

61,850 

35,944 

21,975

ter year 1949-50 ....... .. 704,199

Mar

2,890 

2,460 

3,440 

8 , 630 

7,570

5,300 

4,030 

3,260 

2,720 

2,380

2,060 

1,840 

1,700 

1,600 

1,540

1,830 

3,930 

3,830 

3,260 

2,720

2,300 

2,140 

1,990 

1,800 

1,650

1,520 

1,600 

1,540 

1,430 

1,530 

1,600

Maximum

3,780 

8,340 

7,400

8,340

7,830 

8,360 

8,630 

3,350 

2,630 

3,730 

2,980 

2,220 

1,900

8,630

Apr.

2,800 

2,980 

2,460 

2,060 

1,930

1,870 

1,700 

1,580 

1,470 

1,370

1,290 

1,660 

2,140 

1,860 

1,990

3,350 

3,350 

2,630 

2,220 

2,060

2,140 

1,980 

1,810 

1,620 

1,450

1,320 

1,330 

1,260 

1,160 

1,120

51.0 5,190 

51.5 6,330 

52.0 7,570 

52.5 8,900

1949 to September 195O

May

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1

2

2 

2 

2 

1

1

1 

2

1 

1

1

2 

2 

2 

2 

2 

2

Minimum

498 

675 

934

498

817 

1,180 

1,430 

1,120 

1,150 

1,780 

1,330 

843 

501

498

,160 

,230 

,170 

,400 

,500

,470 

,320 

,250 

,200 

,150

,300 

,060 

,630 

,540 

,300

,060 

,140 

,060 

,730 

,560

,670 

,140 

,980 

,770 

,760

,140 

,540 

,380 

,060 

,140 

,06O

June

2,140 

2,380 

2,540 

2,890

2,980

2,380 

2,060 

1,940 

1,780 

1,990

2,380 

2,540 

2,460 

2,380 

2,220

2,630 

3,540 

2,980 

3,160 

3,350

3,160 

2,980 

3,730 

2,720 

2,220

1,960 

2,140 

2,540 

3,070 

3,160

Mean

1,166 

1,958 

2,124

1,560

2,264 

2,686 

2,777 

1,932 

1,802 

2,613 

1,995 

1,159 

732

1,929

July

2,980 

2,720 

1,540 

2,540 

2,630

2,540 

2,220 

1,990 

2,220 

1,990

1,570 

1,500 

1,730 

1,940 

1,760

1,570 

1,560 

1,710 

2,300 

2,140

1,830 

1,900 

1,960 

2,060 

2,060

1,840 

1,660 

1,660 

1,960 

1,440 

1,330

Per 

square 

mile

2.66 

4.47 

4.85

3.56

5.17 

6.13 

6.34 

4.41 

4.11 

5.97 

4.55 

2.65 

1.67

4.40

Aug.

1,340 

1,470 

1,290 

1,090 

1,000

972 

1,070 

1,000 

972 

924

991 

982 

962 

888 

1,420

2,220 

1,600 

1,430 

1,320 

1,300

1,280 

1,190 

1,380 

1,360 

1,050

972 

1,000 

897 

861 

870 

843

Sept

897 

934 

1,020 

1,000 

111

689 

633

615 

615 

663

689 

621 

575 

580 

565

561 

529 

513 

510 

501

529 

537 

541 

570 

1,060

1,900 

1,220 

861 

675 

595

Runoff

Irches

3.07 

4.99 

5.59

48.34

5.96 

6.39 

7.31 

4.92 

4.74 

e.66 

5.25 

3.05 

1.87

59.80

Acre-feet

71,670 

116,500 

130,600

1,129,000

139,200 

149,200 

170,800 

115,000 

110,800 

155,500 

122,700 

71,290 

43,590

1,397,000

Peak discharge (base, 6,400 sec. -ft. ) .--Oct. 28 (2:30 p.m.) 7,830 sec. -ft.; Nov. 27 (11:15 a.m.)

12,400 sec.-ft.; 

ft.; Feb. 24 (1 p.]

a No gage-height r 

station near Orting.

Note.--Shifting-control

20 (7:30 p.n

ed Dec. 29 to Feb. 24, Sept. 26-30.
PUYALLUP RIVER BASIN 85

Puyallup River at Puyallup, Mash.

Location. Water-stage recorder, lat. 47°1C'20", long. 1£C"19'30", in NE-f see. GO, T. 20 

N., hf. 4 E., 1 mile northwest of Puyallup and 7 miles upstream from mouth. Datum of 

gage Is at mean sea level, datum of 1929.

Drainage area.--948 square miles.

Kecords available. May 1914 to September 195C.

Average discharge. 36 years, 3,254 second-feet (adjusted for storage in Lake Tapps since 

October 1934, and Mud Mountain Reservoir October 1944 to September 1947).

Extremes.--Maximum discharge during year, 17,400 second-feet Mar. 4 (gage height, 18.40 

feet); minimum, 744 second-feet Oct. 2; minimum daily, 340 second-feet Oct. 2.

1914-50: Maximum discharge, 57,000 second-feet Pec. 10, 1933 (gage height, 31.0 

feet, present datum); minimum, probably less than 350 second-feet Nov. 24, 28, Dec. 1, 

3-5, 1929.

Remarks. Records good. All diverted water returned to river above station. Large part of 

flow of White River diverted into Lake Tapps returned via Etuck River above station. 

Lake Tapps, completed in 1912, has usable capacity of 50,400 acre-feet between elevations 

505 and 541 feet. Flood flow regulated by Mud Mountain Reservoir on White River. Diurnal fluctuation caused by power plants above station.

Cooperation. Records of change in contents in Lake Tapps furnished by Puget Sound Power & 

Light Co.

Revisions.--W 832: Drainage area.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shlftlr.g-eontrcl method used Oct. 1-28)

B.9

9.1

9.5

10.O

10.5

840

960

1,E60

1,700

2,210

12.0 

13.0 

14. C

2,730 

3,430 

4,120 

5,650 

7,4OO

15.0 9,350

16.0 11,500

17.5 15,100

Discharge, in second-feet, water year October 1949 to September 195C

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

670

P40

I, -140

2,290

2,500

2,410

1,U30

1,400

2.110

4,020

2,920

3,800

2,800

1,950

1,810

1,610

2,430

2,020

1.900

1,660

1,530

1 , 030

960

1,440

1,370

1,300

],270

5,250

5,620

2,810

2,610

Nov.

2,640

2,480

2,320

2,240

1,570

1,250

1,650

1,990

1,910

1,890

1,500

2,640

4,380

5,080

5,070

4,190

3,390

3,200

2,740

1.880

2,710

2,510

3,950

4,800

5,690

6,620

12,200

11,800

9,480

8,050

_

Month

October. ............

November ............

December ............

Calendar year 1949

January .............

February ............

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

April ...............

May.... .............

June ................

July., ...........

August ..............

September ...........

Water year 1949-5O

Dec.

7,380

8.040

3,520

 V4BC

5,900

5,490

4,320

3,100

2,840

2,510

2,090

,720

,640

,500

,690

,860

,200

,830

,600

,560

,63C

3,220

4,050

4,910

3,770

3,810

5,070

11,600

9,560

8,060

6,580

Jan.

5,750

4,43

3,73

3,49

0

0

0

3,300

3,810

3,52

2,71

3,22

0

0

3,360

3,340

3,10

3,00

2,26

0

3

1,810

2,380

2,39

2 , 21

2,£2

0

6,640

11,400

10,30

9,47

7,31

0

3

6 , 030

5,620

4,65

4,30

3,75

3,79

4,10

1

0

3

0

0

Feb.

4,000

3,500

3,030

2,970

2,220

3,410

3,540

3,870

3,620

3,470

3,230

2,O9O

3,900

4,130

4,860

5,490

5 , 230

4,540

4,250

4,070

3,910

3,900

4,480

11,200

11,900

11,900

9,580

7,650

_

Mar . Apr .

6,E9ol 4,730

6,150J 4,390

7,060 4,310

13,600

14, 700

11,500

8,910

7,910

7,330

6,640

6,130

5,500

4,650

3,620

3,420

3,65C

6,390

6,820

6,070

5,520

4,910

4, 720

4,270

3,970

3,600

3,380

3,650

3,630

3,460

3,550

3,650

Observed

Discharge 

second-f

Maximum

4,020

12,200

11,600

12,200

11,400

11,900

14,700

6,390

5,860

9,340

7,380

4,320

'5,420

14,700

Minimum

840

1,250

1,830

840

1,810

2,090

3,380

P 150

' 950

5,490

3,330

1,420

970

840

in 

set

Mean

2,192

4,067

4,630

3,531

4,509

5,000

5,969

4,145

4,692

6,928

5,160

2,643

1,737

4,301

Runoff

in 

acre-feet

134,800

242,000

264,700

2,557,000

277,300

277,700

367,000

246,600

288,500

412.200

317,300

152,500

103,300

3,114,000

4,340

3,980

3,810

3,330

3,430

2,890

3,230

3,200

3,630

4.E10

3,920

5,940

5,370

6,390

5,710

5,160

4,540

4,870

4,630

5,440

4,690

3,580

4,000

3,300

3,260

2,610

2,150

_

May

3,190

June

5,660

4,090 5,390

4,010

4,200

4,820

4,760

3,780

3,200

3,110

2,950

3,100

4,140

4,920

4,740

5,420

5,370

5,520

5,460

5,130

4,720

4,350

5,290

5,220

5,050

5,030

5,450

5,860

5,770

5,510

5,660

5,630

0,230

7,030

7,65'J

7,070

6,C20

5,640

5,490

5,820

5,580

5,880

6,030

6,420

6,520

6,340

8,450

8,910

9,080

9,340

9,200

8,400

8,330

7,210

6,750

6,070

3,170

C,560

6,760

7,200

_

July

7,240

7,340

7,380

6,390

7,220

6,780

£,190

6,410

5,830

5,770

5,780

5,170

5,130

5,070

4,760

4,40O

4. 290

4,130

4,820

4,830

4,460

4,360

4,550

4,350

4,460

4,280

3,900

3,870

4,030

3,330

3,340

Aug.

3,340

3,410

3,290

3,110

2,590

1,470

2,480

2,470

2,560

2,530

2,510

2,370

1,420

2,340

3,120

4,320

3,330

3,180

2,600

2,980

Sept.

2,430

2,160

1,520

1.950

2,020

1,990

1,860

1,920

1,370

1,130

1,790

1,600

1,680

1,700

1,700

1,250

970

1,510

i,340

1,260

3,290 1,360

2,660 1,320

2,580

2,680

2,550

2,310

1,890

2,160

2,080

2,090

2,230

1,190

1,030

2,490

3,420

2,530

2,080

1,880

1,450

-

Adjusted for change in

Change in 

contents in 

Lake Tapps

(acre-feet)

+880

-990

+420

+2,900

-9,330

+2,510

-3,990

+9,620

+600

-820

+1,26O

-440

-1,280

-1,360

Runoff

in 

acre-feet

135,700

241,000

285,100

2,560,000

268,000

280,200

363,000

256,400

2b9,100

411,400

318,600

162,100

102,000

3,113,000

Discharge in 

sec<^d feet

Mean

2,2C7

4,050

4,637

3,535

4,3^9

5,045

5,904

4,309

4,702

6,914

5,182

2,636

1,714

4,2?9

Per 

square 

mile

4.53

Runoff

in 

inches

61.56
PUYALLUP RIVEK BASIN

Kapowsln Creek near Kapowsin, Wash.

Location. Water-stage recorder, lat. 46°59 ! 45", long. 122°11'45", in NEij sec. 5, T. 17 

H., R. 5 E., half a mile downstream from Kapowsin Lake and ly miles east of Kapowsin. 

Datum of gage is 561 feet above mean sea level (from stadia traverse).

Drainage area.--23 square miles.

Records available.--June 1927 to October 1932, October 1941 to September 1950.

Average discharge.--14 years, 48.2 second-feet.

Extremes. Maximum discharge during year, 430 second-feet Feb. 26 (gage height, 4.68 feet); 

minimum, 2.9 second-feet Sept. 13, 14-17 (gage height, 1.84 feet).

1927-32, 1941-50: Maximum discharge, 605 second-feet Dec. 12, 1946 (gage height, 

5.69 feet); minimum, 1.2 second-feet part of each day July 30 to Aug. 3, 1945.

Remarks.--Records good except those for periods of no gage-height record or shifting control, which are fair. Natural regulation in Kapowsin Lake. No diversion.

Rating tables, water year 1949-5O, except periods of shifting control 

(gage height, in feet, and discharge, In second-feet!

Oct. 1 to Dei. 28 Dec. 29 to Sept. 3O

!- 9 5.0 3.0 100 1.8 2.1 2.6 48 3.6 193 

2.1 10.5 3.3 143 2.0 7.2 2.8 69 4.0 275 

2.3 21 3.6 190 2.2 16 3.0 94 4.4 362 

2-5 39 4.0 260 2.4 30 3.3 139 4.7 430 

2.7 61 4.4 337

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

2 

3

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.1 

5.8 

5.6 

6.8 

8.2

9.5 

9.9 

10 

10 

10

10.5 

10.5 

10.5 

10.5 

11

11 

11 

10.5 

10 

10

9.9 

9.9 

9.9 

10 

9.9

10 

10.5 

16 

23 

25 

25

Nov.

25 

24 

23 

23 

22

22

21 

20 

18.5 

18

18.5 

30 

46 

63

67

63 

53 

49 

43 

39

35

35 

41 

49 

58

71 

113 

140 

137 

131

Dec.

122 

125 

125 

111 

92

87 

78 

68 

61 

54

51 

49 

47 

46 

46

48 

52 

53 

53 

51

50 

58 

81 

130

134

132 

161 

327 

351 

286 

223

Jan.

174 

139 

112 

98 

86

91 

111 

105 

93 

89

90 

82 

70 

73 

68

62 

59 

56 

59 

180

373 

396 

396 

318 

235

184 

153 

128 

alOS 

f88 

a78

Month fS«

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1945 

ary

*

4 

 4

1

ember ................. ...

Feb.

f68 

f66 

65 

65 

65

77 

85 

97 

104 

102

101 

98 

112 

126 

142

158 

156 

144 

134 

122

110 

102 

114 

300 

407

418 

334 

296

ond-

 days

34S.5 

,498 

,352

,638.5

,354

,218 

,628 

,557 

,356 

495 

214.9 

162.3 

131.3

ter year 1949-5O .......... 23,313.0

Mar.

229 

185 

182 

296 

396

351 

275 

217 

174 

149

128 

111 

98 

90 

85

86 

136 

160 

153 

139

120 

111 

105 

98 

90

82 

80 

79 

75 

73 

75

Maximum

25

140 

351

351

396 

418 

396 

125 

77 

20 

12.5 

6.6 

8.3

418

Apr.

89 

117 

125 

114 

102

95 

84 

79 

74 

69

64 

69 

80 

84 

89

111 

125 

117 

104 

94

84 

80 

77 

73 

67

61 

59 

60 

58 

53

May

52 

50 

50

61

74

77 

74 

69 

62 

59

54 

50

47 

44

41

39 

39

40 

40 

39

36 

34 

32 

29 

28

26 

24 

22 

22

21 

21

June

20

18.5 

17.5 

16.5 

16

16 

16.5 

17.5 

16.5 

17.5

16.5 

16.5 

16 

15.5 

15.5

15.5 

15 

14.5 

14.5 

15

14.5 

14.5 

15.5 

18.5 

19

20 

18.5 

17.5 

15.5 

14.5

Minimum Mean

5.6 11.2 

18 49.9 

46 108

4.3 42.8

56 140 

65 151 

73 149 

53 85.2 

21 43.7 

14.5 16.5 

4.4 6.93 

3.9 5.24 

2.9 4.38

2.9 63.9

July

12.5 

12 

10.5 

9.9 

9.9

9.5 

8.3 

8.0 

8.3

7.6

6.9

6.0 

6.0 

5.8 

6.0

5.5 - 

4.7 

4.9 

5.2 

4.4

4.7 

4.7 

4.9 

4.7

4.7

5.2 

4.7 

6.6 

7.6 

7.2 

8.0

Per 

square 

mile

0.487 

2.17 

4.70

1.86

6.09 

6.57 

6.48 

3.70 

1.90 

.717 

.301 

.228 

.190

2.78

Aug.

e!o

5.5 

4.9

4.7

4.7 

4.7 

4.7 

4.4 

4,1

4.1 

3.9 

3.9 

3.9 

5.2

6.3 

6.0 

6.0 

6.0 

5.5

f5.2 

f5.8 

6,6 

6.3 

5.8

5.5 

6.0

6.0 

4.9

4,7 

4.4

Sept.

4.1 

3.9 

3.9 

3.9 

3.9

3.9 

3.9 

3.6 

3.6 

3.4

3.4 

3.2 

3.2 

3.2 

2.9

2.9 

3.2 

3.4 

3.4 

3.4

3.4 

3.4 

3.4

4.7 

5.8

7.6 

7.8 

8.3 

8.3 

8.3

Runoff

Inihes

0.56 

2.42 

5.42

?5.28

7.04 

6.82 

7.48 

4.13 

2.19 

.80 

.35 

.26 

.21

37.68

Acre-feet

687 

2,970 

6,650

31,030

8,640 

8,370 

9,180 

5,070 

2,690 

982 

426 

322 

260

46,250

Peak discharge (base, ISO sec. -ft.). Dec. 28 (9 to 10:3O p.m.) 357 sec. -ft. ; Jan. 23 (5:30 to

_ _,___. __., ____ __ v _ __ ..... ___ __. _ __ . _ » - _._. _ r . .

Mar. 18 (10 a.m., 4/7 p.m.) 161 sec.-ft."'

a No gage-height record; discharge computed on basis of records for nearby streamr.

f Computed on basis of partly estimated gage-height record.

Note. Shifting-control method used Apr. 18 to Aug. 1, Sept. 25-27.
PDYALLUP RIVER BASIN 87

Carbon River near Fairfax, Wash.

Lcx-ation.--Water-stage recorder, lat. 47°01'30", long. 122°02'00", in SW£ sec 22, T. 18 

M-( H- 6 E., it miles northwest of Fairfax and 12 miles upstream from Voights Creek.

Drainage area. 81 square miles.

Records available. March 1929 to September 1950. November 1910 to July 1912 at site

 1^ miles upstream, published as Carbon River at Fairfax.

Average discharge . 21 years (1929-50), 410 second-feet.

Extremes.--Maximum discharge during year, 3,750 second-feet Nov. 27 (gage height, 5.40

 feet); minimum, 140 second-feet Oct. 3, but may have been less during period of no

gaS 1910-12! 1929-5ofnMaxim 'discharge, 8,030 second-feet Dec. 9, 1933 (gage height, 

10 2 feet), from rating curve extended above 500 second-feet; minimum, 40 secondfeet (estimated) Jan. 20, 1930.

Remarks. Records fair. Diversions by lumber industry returned to river above station.

 No regulation.

Revisions. W 832: Drainage area.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

176 

162 

153 

406 

471

393

310 

261 

872 

633

600 

565 

429 

355 

384

338 

295 

258 

227 

213

198 

191 

162

175 

170

185

240 

1 , 560 

890

S44 

560

Nov.

4 90 

438 

415 

380 

355

338

330 

334 

310 

295

350 

740 

830 

1,250 

925

770 

655 

595 

555

520

486 

535 

800 

1,450 

1,230

1,330 

2,540 

1,490 

S60

830

Dec.

800 

995 

800

682

570 

500 

457 

420 

384

342 

334 

330

326 

351

330 

318 

295

265 

2S5

283 

393 

500 

490 

429

411 

710 

1,210 

925 

682 

565

Jan.

462 

384 

347 

322 

299

338 

299

265 

247 

254

"230 

21S 

a 190 

a!70 

al^O

a!65 

a!60 aieo

250 

1,450

1,450 

1,250 

890 

c82

a450

8400 

a350 

3300 

S260 

a240 

a230

Feb.

a220 

a210 

a200 

a210

230

261 

230 

254

216 

204

201 

204 

314 

338

466

565 

490 

415

406 

363

347 

334 

520 

1,620

1,410

1,210 

830 

595

Mrmth SecondMonth foot-days

Octc 

Move 

Dec£

Cs

Jam. 

Febi 

Hare 

Apri 

May 

June 

Julj 

Augv 

Sep1

WE

lender year 1943 ......

ary

12,514 

22,616 

15,988

173,752

ember ......... ...........

12 , 880 

12,913 

17,557 

14,134 

17,515 

25,451 

22,749 

13,844 

7,406

iter year 1949-50 ..... .... 196,567

Peak discharge (base, 1,800 sec . -ft . ) . 0

1,810 sec. -ft.; Nov. 27 (5:30 a.m.) 3,750se 

(9:30 a.m.) 2,490 see. -ft. 

a No gage-height record; discharge ccmput 

Nlsqually River near National.

Mar.

462 

429 

830 

1,910 

1,330

960 

740 

626 

545 

476

424 

393

3S3 

347 

326

476 

860 

770 

655 

5?0

490 

4d2 

415 

364 

355

342 

338 

316 

299

330 

330

Apr.

682 

616 

500 

443 

434

424 

393

376 

351 

322

314 

429 

471 

434 

560

800 

740 

616 

555 

575

585 

545

476 

424 

393

36.3 

555

32e

318

314

May

Maximum j Minimum

i.sec

2,540

1,210

2,540

1,450

1,620 

1,910 

800 

S60 

1,210 

1,030 

740 

490

2,540

153 

?95

235

130

160 

200 

299 

314, 

314 

633 

515 -10 

165

153

334 

326 

330 

355 

355

347 

318 

314 

314 

330

458 

710 

800 

800

710

682 

682 

622 

540 

510

585

740 

655

600 

616

740

aeo

?70 

710 

740 

682

June

740 

800 

830 

960 

925

740 

6S5

633 

740

800 

860

800 

800 

740

960 

1,100 

995

1,030 

1,060

1,030 

1,100 

1,210 

890 

770

740 

830 

960 

1,060 

1,060

Mean

404 

754

516

476

415

461 

566 

471 

565 

882 

734 

447 

247

539

July

1,030 

960 

890 

925 

890

860 

BOO 

740 

800 

710

S16 

622 

682 

730 

650

595

600 

650 

8 SO 

770

710 

740 

740 

770 

740

682 

622 

633 

682 

555 

515

Per 

square 

mile

4.99 

9.31 

6.37

5.88

5.12 

5.69 

6.99 

5.81 

6.98 

10.9 

9.06 

5.52 

3.05

6.65

Aug

540 

560 

505 

434 

402

402 

434 

420 

411 

415

406 

411 

397 

376

560

740 

585 

540 

505

500

466 

452 

515 

481 

389

359 

363 

330 

318 

318 

310

Sept.

326 

347 

363 

342 

302

272 

251 

233 

223

220

223 227' 

223 

213 

210

207 

194 

188 

179 

170

165 

170 

173 

185 

338

490 

326 

254 

2 1C 

18P

Runoff

Inches

5.75 

10.J8

7.34

79.78

5.91 

5.93

a. oe

6.49 

8.04 

12.14 

10.44 

6.36 

3.40

90.24

Acre-feet

24,820 

44,660 

31,710

344,600

25,550 

25.610 

34,820 

28,030 

34,740 

52,460 

45,120 

27.460 

14,590

389,900

;t. ?S (6:30 a.m. 2,540 see. -ft.; Nov. 24 (etSO a.m.) 

c.-ft,; Fab. 24 (9:30 a.m.) 1,960 sec. -ft.; Mar. 4

5d on taais of records for White River at 3reenwater and

238382 O - 53 - 7
Drainage area.--77.5 square miles (revised). 

Pecorde available.--June 1949 to September 1950.

Extremes.--Maximum discharge during year, 2,930 second-feet Dec. 28, Mar. 4; maximum gage 

 height, 6.54 feet Mar. 4; minimum discharge, 35 second-feet Sept. 22, 23 (gage height,

1.37 feet).

1S49-50: Maximum discharge, that of Dec. 28, 1949, Mar. 4, 19oO; maximum gage

height, that of Mar. 4, 1950; minimum discharge, that of Sept. 22, CO, 1950.

Rating table, water year 1949-50, except periods of ice effect or shifting control 

(gage height, in feet, and discharge, In second-feet;

1.3

1.5 

1.7 

1.9 

2.2 I

Discharge, in seconc

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

49 

47 

45 

118 

220

15E 

133 

108 

347 

324

311 

314 

215 

163 

165

143 

120 

108 

96 

88

84 

80

75 

72

59

37 

F-9'6 

374 

243 

184

Nov.

150 

126 

111 

101 

93

Bfi 

81 

93 

87 

83

90 

427 

459 

614 

431

304 

234 

192 

163 

141

126 

157 

334 

503 

524

467 

1,530 

1,140 

775 

675

Dec. j

5561 

775 i 

600 

467 

392

323

272 ' 

237 1 

223 

196

172 

174 

186 

194 

237

285

260 | 

237 

199 

182

396 

551 

582 

471

416 

959

*2,010 

1,101 

650 

475

Month

October . . . 

November . . 

December .

Ca

Jan-o 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year

uary . -

ember . , . . .... . 

ter year 1949-50 ....

Jan.

355 

272 

245 

220 

205

280 

250 

Z28 

199

207

109 

168 

152 

135 

140

140 

125 

125 

260 

1,720

1,600 

1,280 

965 

618 

450

370 

304 

257 

220 

*200 

190

29

71 

99 

56

-feet, ~iTb 

180 

165

170

204

254 

226 

257 

237 

234

218

234 

471 

487 

700

£75 

560 

451 

416 

345

321 

374 

534 

1,880 

1,560

1,380 

890 

605

Secondfoot-days

5,298 

10,297 

13,915

-

12,080 

14,188 

16,350 

11,126 

7,532 

7,302 

4,030 

2,092 

1,655

2.5 231 4.E 1,17 0 

2.8 324 5.0 1,520 

3.1 435 5.5 1,920 

3.5 605 fe.O 2,360 

4.0 860

»ater year Ootober 1949 to September 1950

Mar.

471 

396 

590 

2,120 

1,460

890 

650 

520 

427 

370

314 

279 

254 

243 

251

363 

1,040

890 

725 

564

451 

400 

352 

314 

285

263 

282 

269 

248 

317 

352

Maximum

693 

1,530 

2,010

-

1,720 

1,880 

2,1ZO 

830 

359 

426 

226 

160 

248

106,465| 2,120

Apr.

700 

636 

507 

408 

366

338 

294 

272 

251 

226

212 

334 

392 

331 

462

830 

750 

560 

443 

404

366 

334 

288 

24S 

223

202 

?04 

134 

179 

17£

May

192 

215 

199 

243

257

254 

231 

212 

199 

194

215 

338 

359 

331 

288

263 

294 

269 

220 

199

212 

269 

226 

196 

199

257 

308 

243

22C 

204

Minimum

U

-"-:

----- 

125 

160 

243 

172 

192 

209 

81 

48 

35

35

June

220 

240 

269 

314 

279

218

231 

209 

248

266 

240 

223 

215

282 

356 

27 E 

276 

298

263 

288 

426 

276 

254

223 

237 

?63 

279 

251

Mean

171 

343 

449

-

390 

507 

527 

371 

?43 

263 

130 

b7.5 

55.2

292

Ju y | Aug.

225 

199 

184 1-79

170

170 

150 

139 

182 

141

118 

120 

135 

126 

113

104 

106 

111 

154 

124

108

104 

101

88

83 

81 

106 

135 

34 

83

Per 

square 

mile

2.21 

4.43 

5.79

-

5.03 

K.54 

6.80 

4.79 

3.14 

3.39 

1.58 

.871 

.712

3.77

76 

"4 

70 

66 

65

65 

66 

63 

60 

59

57 

55 

55 

55 

113

160 

81

67 

60 

57

54 

54 

81

86

70

63 

57 

54 

51

50 

48

Sept.

46 

45 

45 

45 

45

44 

42 

41 

41 

41

41

40 

40 

40 

40

40 

39 

38 

38

38

37 

36 

35 

40 

79

248

120 

90 

75 

66

Runoff

Inches Acre-feet

2.54 10,510 

4.94 20,420 

6.68 27,600

5.80 23,960 

6.81 28,140 

7.85 32,430 

5.34 22,070 

3.61 14,940 

3.79 15,670 

1.93 7,990 

1.00 4,150 

.79 3,280

51.08 211,200

Peak discharge (base, 2,000 sec.-ft.). Hov. 27 (6 a.m.) 2,450 sec.-ft.i Dec. 28 (2 a.m.) 2,930 

sec.-ft.J Feb. 24 (9:30 a.m.) 2,360 sec -ft.; Mar. 4 (10 a.m.) 2,930 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Jan. 3-7, 14-19, 25, 26, Jan. 29 to Feb. 3, (no 

gage-height record Jan. 16-19, 29, Feb. ", 3j. Shifting-control method used Dec. 28 to Jan. 1, July 

2 to Aug. 16,
PUYALLUP RIVER BASIN 89 

White River at Greenwater, Wash.

Location.--Water-stage recorder, lat. 47°08'50", long. 121 "38'50" , in SE£ sec. 10, T. 19 

ft., K. 9 E., three-quarters of a mile southeast of Greenwater, three-quarters of a 

mile upstream from Greenwater River, and 25 miles upstream from Buckley.

Drainage area. 216 square miles.

Records available.--March 1929 to September 1950. September 1911 to May 1912 (fragmentary); 

at site a miles upstream, published as White River near Enumclaw.

Average discharge. 21 years (1929-50), 817 second-feet.

Extremes. Maximum discharge during year, 8,270 second-feet Nov. 27 (gage height, 6... 

reet); minimum, 278 second-feet Oct. 24 (gage height, 2.07 feet)

1911-12, 1989-50: Maximum discharge, 12,100 second-feet Dec. 21, 1933 (gage height, 

9.38 feet); minimum, 120 second-feet Nov. 2, 1935 (gage height, 1.69 feet).

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

No diversion or regulation.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

2.0 250 2.8 678 4.0 1,910 

2.2 332 3.0 833 4.5 2,710 

2.4 428 3.3 1,100 5.0 3,750 

2.6 543 3.6 1,410 5.6 5,270

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

355

346 

324 

423 

434

398 

364 

337 

507 

525

444 

439 

388 

346 

360

346 

332 

324 

298 

294

294 

290 

290 

290 

286

286 

294 

1,280 

833 

608 

513

Nov.

483 

450 

434 

408 

398

383 

373 

373 

373 

364

398 

657 

753 

1,030 

867

700 

629 

569 

543 

501

472 

543 

842 

1,660 

1,460

1,650 

5,140 

2,800 

2,020 

1,530

Dec.

1,330 

1,530 

1,230 

1,050 

945

842 

761 

723 

708 

657

582 

595 

556 

537 

531

501 

495 

478 

434 

428

434 

483 

550 

582 

562

556 

842 

1,740 

1,310 

1,020 

850

Jan.

753 

686 

595 

608 

556

556 

531 

501 

478 

461

439 

423 

403 

390 

375

365 

350 

400 

600 

900

1,000 

1,150 

1,300 

1,100 

1,150

1,000 

840 

710 

630 

560 

500

Feb

450 

420 

390 

400 

430

460 

450 

440 

430 

410

400 

390 

470 

530 

600

640 

640 

620 

610 

595

576 

588 

657 

1,780 

1,840

1,750 

1,370 

1,100

M +h Second 

onl foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

mber ......................

lendar year 194? ... ?

ember .....................

12,848 

28,803 

23,842

45,769

20,310 

19,436 

28,649 

26,751 

48,655 

79,790 

58,080 

26,713 

16,567

ter year 1949-50 .......... 390,444

Mar.

918 

833 

1,110 

2,440 

2,360

1,770 

1,390 

1,120 

963 

833

746 

708 

686 

650 

622

671 

963 

1,030 

954 

842

761 

746 

716 

686 

657

622 

608 

576 

550 

556 

562

Maximum

1,280 

5,140 

1,740

5,140

1,300 

1,840 

2,440 

1,300 

2,530 

3,750 

3,100 

1,170 

761

5,140

Apr.

901 

910 

785 

746 

738

753 

738 

708 

671 

643

636 

825 

990 

918 

972

1,250 

1,300 

1,140 

1,050 

1,160

1,290 

1,170 

1,010 

901 

833

769 

746 

730 

730 

738

May

761 

793 

769 

761 

753

746 

738 

738 

753 

833

1,250 

2,050 

2,530 

2,440 

2,280

2,200 

2,120 

1,770 

1,530 

1,410

1,630 

1,910 

1,780 

1,660 

1,720

2,050 

2,360 

2,200 

2,050 

2,050 

2,020

Minimum

286 

364 

428

286

350 

390 

550 

636 

738 

1,770 

1,030 

650 

388

286

June

2, 

2,

2, 

2, 

3,

2, 

2, 

1, 

1, 

2,

2, 

2, 

2, 

2,

2,

2, 

3, 

3, 

3, 

3,

3, 

3, 

2, 

2, 

2,

1, 

2, 

2, 

2, 

3,

Mean

414 

960 

769

947

655 

694 

924 

892 

1,570 

2,660 

1,874 

862 

552

1,070

Peak discharge (base, 2,000 sec.-f t. ) . Oct. 28 (12 m.) 2,020 sec. -ft.

200 

360 

530 

900 

100

530 

120 

780 

770 

020

280 

530 

710 

620 

440

900 

640 

420 

530 

750

750 

200 

800 

360 

050

910 

020 

360 

900 

310

P

sqi 

m

July

3, 1C 

2,8C 

2,71 

2,71 

2,71

2,62 

2,44 

2,26 

2,2C

2,02

1,72 

1,66 

1,76 

1,91 

1,76

1,64 

1,56 

1,63 

1,76 

1,63

1,55 

1,56 

1,6E 

1,66 

1,63

1.4E 

1,37 1,2- 

1,13 

1,02 

1,02

er

lie I

1.92 

4.44 

3.56

4.38

3.03 

3.21 

4.28 

4.13 

7.27 

12.3 

8.68 

3.99 

2.56

4.95

Aug.

0 1, 

0 1,

0 1,

o

0

0

0 

0 

0 

0

0 

0 

0 

0 

0 1,

0 1, 

0 1,

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0 

0

060 

110 

010 

867 

833

825 

876 

842 

842 

833

825 

835 

793 

761 

170

140 

020 

999 

954 

972

918 

842 

833 

761 

693

708 

730 

686 

678 

657 

650

Sept.

700 

708 

761 

693 

622

588 

569 

562 

556 

562

576 

556 

550 

531 

513

501 

495 

472 

472 

450

483 

507 

472 

495 

629

730 

531 

472 

423 

388

Runoff

nines

2.21 

4.96 

4.11

59.54

3.50 

3.35 

4.93 

4.61 

8.38 

13.74 

10.00 

4.60 

2.85

67.24

Nov. 24 (8:30 £

Ac re- feet

25,480 

57,130 

47,290

685,800

40,280 

38,550 

56,820 

53,060 

96,510 

158,300 

115,200 

52,980 

32,860

774,500

.m.) 2,120

sec.-ft.; Nov. 27 (6:30 a.m.) 8,270 sec.-ft.; Dec. 28 (4 a.m.; _,._ ___.__.._ . _ , 

2,120 sec.-ft.; Mar. 4 (12 m.) 2,800 sec.-ft.; May 14 (1 a.m.) 2,620 sec.-ft.; May 27 (10 a.m.) 

2,440 sec.-ft.; June 4 (11:30 p.m.) 3,310 sec.-ft.; June 20 (11:30 a.m.) 4,220 sec.-ft.; June 30 

(3 a.m.) 3,750 sec.-ft.

Note.--No gage-height record Jan. 14 to Feb. 19; discharge computed on basis of weather records 

and records for nearby streams.
90 PUYALLUP RIVER BASIN

Mud Mountain Reservoir near Buckley, Wash.

Location. Staff gage, lat. 47°08', long. 121°56' t in SE£ sec. 8, T. 19 N., R. 7 E., just 

upstream from Mud Mountain Dam on White River, 4j miles southeast of Buckley and 6 miles 

downstream from Clear-water River. Datum at gage is at mean sea level (levels by Corps 

of Engineers }

Records available. --October 1944 to September 1950.

Extremes. --Maximum contents observed during year, 17,640 acre-feet June 18 (elevation, 

1.U7U.8 feet); minimum, 43 acre-feet Oct. 23-27, Nov. 8-11 (elevation, 908.0 feet). 

Maximum contents observed since dam was completed, that of June 18, 1950.

Remarks .- -Gage read once daily about noon, except June 3 to July 15 when gage was read once 

or twice daily at various times. Reservoir,, for flood control, is formec? by earth-fill 

dam. Embankment completed in 1942. Capacity, 106,000 acre-feet at spillway crest, 

elevation, 1,215 feet. Storage is not retained but is dissipated as soor after a flood 

as is possible without creating damaging flows downstream in order to have the maximum 

capacity available for any following floud which might develop. Storage oegan on small 

scale in 1942.

Cooperation. --Records of reservoir elevations furnished by Corps of Engineers'.

Elevation, In feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

918.0

918.0

918.0

918.0

923.0

918.0

911.0

911.0

911.0

914.0

914.0

914.0

914.0

913.0

913.0

912.0

912.0

912.0

911.0

911.0

911.0

909.0

908.0

908.0

908.0

908.0

908.0

966.2

964.0

916.0

916.0

Nov.

912.0

912.0

912.0

912.0

912.0

910.0

910.0

908.0

908.0

908.0

908.0

912.0

914.0

946.0

916.0

916.0

913.0

913.0

912.0

912.0

912.0

912.0

918.0

967.0

972.0

972.0

1,042.0

1,065.5

1,063.8

1,062.8

-

Dec.

1,056.4

1,051.8

1,046.7

1,033.2

1,008.9

974.8

930.2

927.0

926.0

926.0

926.0

926.0

925.0

925.0

925.0

925.0

924.0

924.0

924.0

924.0

927.0

934.0

935.0

935.0

928.0

927.0

934.8

1,011.3

1,025.0

1,019.1

989.0

Jan.

965.0

927.0

927.0

927.0

927.0

927.0

927.0

927.0

927.0

927.0

927.0

926.0

926.0

930.0

939.0

939.0

939.0

939.0

939.0

984.8

1,017.7

1,024.7

1,034.8

1,026.3

1,005.4

976.2

931.0

930.0

927.0

926.0

926.0

Feb.

926.0

926.0

926.0

934.5

939.0

940.0

932.0

932.0

929.0

928.0

928.0

928.0

945.8

953.0

958.0

963.6

964.8

956.0

948.0

939.0

934.0

943.0

952.0

1,017.7

1,054.7

1,067.9

1,068.9

1,066.0

_

-

Mar

1,057.7

,046.0

,032.5

,055.3

,068.5

,064.2

,064.1

,059.0

,049.0

,034.2

1,012.0

979.0

929.0

927.0

927.0

932.0

968.0

997.0

1,003.0

998.6

984.6

964.3

932.0

931.0

927.0

927.0

927.0

926.0

926.0

926.0

935.0

Apr.

967.0

977.0

975.0

959.0

947.0

940.0

934.0

931.0

929.0

927.0

927.0

938.0

954.0

952.0

954.0

992.0

1,010.0

1,008.0

1,001.0

993.0

991.0

983.0

971.0

951.0

928.0

926.0

926.0

926.0

926.0

926.0

-

May

932.0

934.0

931.0

932.0

933.0

931.0

929.0

929.0

931.0

933.0

955.2

991.4

,025.3

,044.0

,052.5

,05S.2

,059.6

,060.4

,056.8

,049.6

, 044 . 2

,043.9

,045.3

,042.2

,037.9

,037.8

,045.2

,053.1

,055.2

1,056.4

1,056.4

June

1,057.0

1,059.9

1,064.0

1,070.4

1,069.9

1,068.6

1,066.6

1,065.0

1,061.9

-

1,059.4

1,062.0

1,066.2

1,069.2

1,066.5

1,068.7

-

1,070.8

1,066.7

1,064.6

1,063.2

1,061.1

1,066.1

_

-

1,059.1

1,054.0

1,052.1

1,056.0

1,064.0

-

July

1,069.7

1,067.2

1,061.9

1,058.8

1,060.9

i,oe:. 7

1,061.1

_

-

1,048.7

1,038.9

1,024.8

1,009.7

999.1

991.2

977.2

960.9

951.2

952.3

951.1

943.0

943.0

945.2

947.8

947.5

935.5

937.5

935.0

933.0

931.0

930.0

Aug.

931.5

932.5

929.0

928.0

927.0

926.0

933.0

932.0

932.0

932.0

931.0

931.0

929.0

927.0

943.0

943.0

928.0

928.0

928.0

928.0

926.0

925.0

931.0

930.0

928.0

925.0

925.0

925.0

925.0

925.0

923.0

Sept.

929.0

930.0

930.0

930.0

925.0

924.0

924.0

924.0

924.0

924.0

924.0

924.0

924.0

922.0

924.0

924.0

924.0

924.0

924.0

924.0

924.0

921.0

920.0

920.0

920.0

938.0

920.0

920.0

918.0

918.0

-

Monthly elevation and contents, water year October 1949 to September 1950

Date

Dec. 31. ....................

Calendar year 1949. .......

Feb. 28. ....................

July 31.... .................

Sept. 30. ....................

Elevation 

(feet)t

977.5

-

918.0

Contents 

(acre-feet)

72

1,980

-

149

14,960

178

200

95

Change in contents 

during month 

(acre-feet)

_

-23

-12,340

+1,930

-1,830

+14,810

-14,310

-473

+3,030

-16,340

-52

-53

t Elevation at 12 p.m. determined from 1 daily observatio
PUYALLUP RIVER BASIN 91

White River near Buckley, Wash.

Location.--Water-stage recorder, lat. 47°09'05", long. m°57'00", in SW^NWi sec. 8, T. 19 

N. , R. 7 E., 0.7 mile upstream from Red Creek, 3 miles east of Buckley, and 8 miles 

downstream from Clear-water River. Datum of gage is at mean sea level, datum of 1929.

Drainage area.--403 square miles.

Hecords available.--October 1938 to September 1950. October 1928 to Novembe- 1933 at site 

3 miles upstream.

Average discharge.--17 years, 1,362 second-feet.

.Extremes .--Maximum discharge during year, 7,580 second-feet Nov. 28 (elevation, 805.63 

feet); minimum recorded, 440 second-feet Oct. 3 (elevation, 799.43 feet), but may have 

been less during period of ice effect in January.

1928-33, 1938-50: Maximum discharge, 17,000 second-feet Feb. 26, 1932 (gage height, 

17.5 feet, site and datum then in use), from rating curve extended above 4,000 secondfeet; minimum, 10 second-feet Sept. 26, 1948 (elevation, 796.92 feet); minimum daily, 

72 second-feet Oct. 13, 1942.

Maximum stage known, 23.4 feet in December 1933, from floodmarks, at former site 

(discharge, 28,000 second-feet, from rating curve extended above 3,000 seiond-feet).

Remarks.--Records good except those for periods of shifting control or ice effect, which 

are fair. No diversion. Plow regulated by Mud Mountain Reservoir for flood control 

(see preceding page).

Cooperation.--Water-stage recorder inspected by employees of Corps of Engineers.

Rating table, water year 1949-50, except periods of shifting control or ice effect 

(gage height, in feet, and discharge, in second-feet)

799.5 455 802.0 1,880 

800.0 635 802.5 2,350 

800.5 860 803.0 2,900 

801.0 1,140 804.0 4,250 

801.5 1,480 805.0 5,970

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

504 

471 

455 

655 

860

742 

635 

555 

910 

1,110

1,050 

1,020 

835 

720 

720

720 

635 

595 

555 

520

520 

504 

487 

471 

471

471 

487 

1,960 

2,350 

1,200 

965

Nov.

860 

788 

720 

675 

635

595 

555 

575 

555 

558

615 

1,240 

1,550 

2,020 

1,790

1,300 

1,110 

992 

910 

835

788 

860 

1,520 

2,250 

2,560

2,670 

3,530 

*5,600 

4,100 

3,810

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wat

endar year 1949

1.. .............

St. .............

ember ...........

er year 1949-50

Dec.

3,810 

3,670 

3,670 

3,530

3,270

2,840 

1,710 

1,520 

1,440 

1,300

1,170 

1,170 

1,110 

1,110 

1,140

1,140 

1,080 

1,050

965 

910

1,020 

1,340 

1,550 

1,710 

1,440

1,380 

1,670 

2,840 

3,080 

3,080 

2,840

Jan.

2,400 

1,440 

1,200 

1,100 

1,050

1,140 

1,080 

992 

965 

910

885 

835 

720

600 

710

840 

840 

800 

980 

2,150

2,560 

2,720 

2,780 

2,300 

2,200

2,200 

1,700 

1,300 

1,100 

720 

560

Feb.

750 

780 

*840 

870

900

938 

885 

860 

835 

810

788 

788 

1,020 

,270 

,630

,840 

,880 

,750 

,630 

* ,550

,480 

,630 

,840 

2,560 

3,020

4,150 

3,400 

3,270

Observed

Discharge in 

second-feet

Maximum

2,350 

5,600 

3,810

5,780

2,780 

4,150 

5,600 

2,620 

3,400 

5,420 

4,410 

1,840 

1,200

5,600

Minimum

455 

538 

910

455

560 

750 

1,050 

1,270 

1,480 

3,140 

1,380 

835 

555

455

Mean

779 

1,552 

1,921

1,659

1,348 

1,570 

2,315 

1,853 

2,652 

3,868 

2,670 

1,148 

728

1,868

Mar.

3,2''0 

3,140 

3,080 

3,530 

5,600

4,040 

3,400 

3,400 

3,270 

3,140

2,840 

2,450 

1,550 

1,340 

1,300

1,480 

2,100 

2,400 

2,450 

2,400

2,300 

2,060 

1,590 

1,410 

1,300

1,200 

1,200 

1,140 

1,050 

1,140 

1,200

Runoff 

in 

acre-feet

47,910 

92,320 

118, 100

1,201,000

82,860 

87,200 

J.42,400 

110,300 

163,100 

230,200 

164,200 

70,610 

43,350

1,353,000

Apr.

1,750 

2,060 

2,060 

1,920 

1,630

1,630 

1,550 

1,480 

1,410 

1,300

1,270 

1,480 

1,840 

1,880 

1,880

2,250 

2,560 

2,620 

2,500 

2,450

2,450 

2,450 

2,350 

2,060

1,670

1,520 

1,480 

1,380 

1,340 

1,380

May

1,520 

1,630 

1,550 

1,590 

1,630

1,590 

1,520 

1,480 

1,550 

1,670

2,020 

2,450 

2,900 

3,140 

3,270

3,270 

3,400 

3,400 

3,270 

3,270

3,270 

3,270 

3,270 

3,270 

3,140

3,140 

3,270 

3,270

3,4do 

3,400 

3,400

Change in

in Mud 

Mountain 

Reservoir 

(acre-feet)

-23

+14,250 

-12,340

+1,930

-1,830 

+14, 810 

-14,310 

-473 

+13,330 

+3,030 

-16,340 

-52 

-53

0

June

3,400 

3,400 

3,400 

4,390 

4,730

4,250 

3,530 

3,270 

3,270 

3,140

3,140 

3,270 

3,270 

3,810 

3,530

3,530 

5,240 

5,420 

5,420 

5,240

5,240 

4,250 

3,950 

3,950 

3,530

3,270 

3,270 

3,270 

3,270

3,400

July

3,950 

4,410 

4,10O 

3,530 

3,400

3,400 

3,400 

3,400 

3,400 

3,270

3,270 

3,080 

2,900 

2,780 

2,720

2,560 

2,400 

2,200 

2,250 

2,300

2,100 

2,060 

2,060 

2,100 

2,100

1,920 

1,790 

1,630 

1,520 

1,38C 

1.38C

Aug.

1,410 

1,480 

,380 

,240 

,140

,110 

,170 

,140 

,110 

,080

,080 

,050 

,050 

992 

,380

,840 

,380 

,300 

,240 

,200

,170 

,080 

,140 

,080 

938

938 

965 

910 

885 

885 

835

Sept.

910 

910 

965 

910 

788

765 

720 

720 

720 

720

742 

698 

675 

675 

655

655 

615 

595 

575 

575

595 

615 

615 

615 

860

1,200 

835 

742 

635 

555

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-feet

47,890 

106,600 

105,800

1,203,000

81,030 

102,000 

128,100 

109,800 

176,400 

233, 200 

147,900 

70,560 

43,300

1,353,000

Discharge in 

second-feet

Mean

779 

1,791 

1,721

1,662

1,318 

1,£37 

2,083 

1,645 

2,869 

3,?19 

2,4-05 

1,148 

728

1,868

Per 

square 

mile

1.93

4.44 

4.27

4.12

3.27 

4.56 

5.17 

4.58 

7.12 

9.72 

5.97 

2.85 

1.81

4.64

Runoff

inches

2.23 

4.96 

4.92

55.98

3.77 

4.75 

5.96 

5.11 

8.21 

10.85 

6.88 

3.28 

2.01

62.93

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Jan. 3-5, 14-20, Jan. 24 to Feb. 5 (no gage-height 

record Jan. 14-19, Jan. 25 to Feb. 2; discharge computed on basis of records for nearby stations). 

Shifting-control method used Nov. 24 to Jan. 2, Feb. 23 to Apr. 27, May 2 to June 7.
92 PUYALLUP RIVER BASIN

Stuck River near Stunner, Wash.

Location.--Water-stage recorder, lat. 47"15'00", long. 122°14'3S", in HE-jSW-| sec. 1, T. 

2U n., R. 4 E., 3 miles north of Sumner and 4f miles upstream from mouth.

Records available. January 1945 to September 1950.

Extremes. Maximum discharge during year, 6,010 second-feet Mar. 6 (gage height, 56.90 

rest) ; minimum, 58 second-feet Sept. 9.

1945-50: Maximum discharge, 13,100 second-feet Dec. 14, 1946 (gage height, 59.74 

feet); minimum, 43 second-feet Oct. 19, 1946.

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

ana those for period of ice effect, which are poor. Water diverted above station to 

Lake Tapps for Dieringer power plants. Flood flow regulated by Mud Mountain Reservoir.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

80 

78 

81 

98 

131

106 

114 

118 

123

133

141

223 

134 

121

na

lie 

lie

112 

109 

106

104 

101 

99 

101 

99

101

107 

330 

685 

228 

145

Nov.

138 

121 

107 

107 

107

109 

107 

104 

104 

107

10b 

167 

186 

285 

341

167 

148 

141

134 

126

123 

126 

157 

352

710

760 

1,460 

3,070 

2,800 

2,120

Dec.

2,020 

2,070 

3,480 

3,100 

1,800

1,560 

942 

310 

295 

301

286 

274 

f286 

f235 

241

214 

223 

244

196 

*174

250 

277 

377 

475 

207

277 

540 

1,890 

1,840 

1,730 

1,520

Jan.

1,090 

398 

259 

247

404 

402 

298

256 

235

217 

179 

b30O 

b400 

b350

bZSO

b40u 

b50O 

b600 

til, 000

1 , 980 

1,840 

1,840 

1,490 

a 1,100

710 

412 

250 

205 

331 

650

Feb.

63O 

510 

241 

196 

*232

310 

280 

349 

256 

247

250

238 

322 

295 

337

380

422 

340 

289 

259

241 

262 

332 

1 , 300 

2,070

3,180 

2,230 

1,940

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mov

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

1,800

1,730 

1,760 

2,920 

5,250

4,280 

3,480 

3,320 

3,250 

3,060

2,800 

2,440 

fl,720 

f292 

268

325

975 

1,370 

1 , 400 

1,190

985

760 

458

319 

292

268 

292 

283 

241 

250 

262

Apr.

349 

530 

61O 

458 

295

241 

229 

226 

214 

208

205 

250 

289 

289 

325

96O 

1,400 

1,340 

1,190 

1,040

985 

985 

3,180 

1,260 

244

179 

176 

171 

160 

158

Secondfoot-days

4,456

14,590

27,734

232,853

18,916 

17,938 

48,050 

18,146 

39,898 

73,670 

39,456 

5,865 

2,682

311,401

May

1,000 

1,660 

1,590 

1,,590

1,660

1,660 

1,370 

196 

179

166

179 

448 

960 

1,310 

1,460

1,520 

1,590 

1,590 

1,560 

1,490

1,460 

1,430 

1,430 

1,430 

1,400

1,400 

1,460 

1,560 

1,590 

1,800 

1,760

Maximum

685 

3,070 

3,480

7,190

1,980 

3,180 

5,250 

3,180 

1,800 

4,360 

3,550 

1,280 

147

5,250

June

1,620 

1,660 

1,660 

2,460 

2,990

2,860 

2,020 

1,760 

1,730 

1,660

1,620

1,660 

1,730 

2,160 

2,220

1,800

3,620 

4,360 

4,280 

4,280

4,280 

3,480 

2,540 

2,440 

2,730

2,070 

2,120 

2,120 

1,800 

1,940

July Aug.

2,450 

3,180

2,860 

2,320 

2,600

3,550 

1,980 

2,440 

1,940 

1,800

1,700 

1,660 

1,460 

1,280 

1,140

985 

785 

61O 

530

670

475 

440 

458 

475 

475

361 

205 

187 

153 

147 

140

Minimum

78 

104 

174

54

179 

196 

241 

158 

166 

1,620 

140 

83 

62

62

135 

135 

132 

130 

125

125

123 

123 

123 

120

118 

113 

106 

108 

125

220 

140 

118 

561 

1,280

702 

140 

118 

132 

92

86 

83 

86 

90 

90 

86

Hern

144 

486 

895

638

610 

641 

1,550 

605 

1,287 

2,456 

1,273 

189 

89.4

853

Sept.

86 

86 

88 

90 

86

68 

68 

64 

62 

64

64

62 

62 

66 

95

102 

97 

92 

88 

97

90 

86 

88 

104 

130

147 

108 

95 

127 

120

Runoff In 

acre-feet

8,840 

28,940 

55,010

461,900

37,520 

35,580 

95,310 

35,990 

79,140 

146,100 

78,260 

11,630 

5,320

617,600

* Winter discharge measurement made on this day. 

a No gage-height record; discharge interpolated, 

b Stage-discharge relation affected by ice. 

f Computed on basis of partly estimated gage-height record.

Note. Shifting-control method used Oct. 1 to Dec. 18, Jan. 21 to Apr. 24, June 4-7, June 

July 26, Aug. 1-19, Sept. 16-30.
PUYALLUP RIVER BASIN aj

Greenwater River at Greenwater, Wash.

Location. -Water-stage recorder, lat . 47°09'15", long. 121°38'00", in NW&W^ sec. 11. T. 

 1'J IJ. . R. 9 E., 1 mil0 upstream from mouth, 1 mile east of Greenwater, and 17 miles

east of Buekley.

Drainage area. --74 square miles. -,,, ,^, 

Recoris "avaTTablir . --May 1329 to September 1950. September 1911 to August 1912 (fragmentary) , puDiisued as Greenwaier River near Enum°law.

l9l-12, 1929-50: Maxim-am discharge, 4:140 second-feet Dec. 9, 1933 (gage height, 

9 24 f°e T . sit° and datum then in use), from rating curve ?xt ended above 1,000 secondfeet; minimum, 23 second-feet Oct. 7, 1934 (gage height, 2.06 feet).

Remarks. R^crds good except those for periods of ice effect which are poor. No diversion or regulation.

Revisions ,--W~832 : Drainage area.

Rating tdble, water year 1J49-50, except period? o 

(gage height, In feet, and discharge

2.1 51 2.B 131

2.2 41 3.0 111

4.:

4.5 

5.0

shifting contrc 

In second-feet)

565

890

1.300

Discharge, in second-feet, water year October 1943 to September 1351

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39 

38 

37 

42 

58

52 

49

46

63 

82

66 

£4

56 

57

64 

59

56 

51 

50

48 

48 

47 

46 

45

45 

45 

195 

172 

121 

104

Nov.

90 

82 

77 

74 

71

69

64

64 

91 

111 

175 

170

144 

125 

113 

104 

93

88 

97 

142 26^ 

257

284 

712 

686 

520 

424

Dec.

380 

434 

380 

319 

278

245

20r

198 

180

163 

158 

151 

146 

142

138

131 

125 

117

125 

163 

182 

190 

175

167 

230 

525 

420 

327 

267

Jan.

230

196 

177 

170 

155

153 

146 

14J 

140 

138

138 

138

b!30 

b!30

b!25 

b!20 

135 

155 

276

375 

402 

333

36?

315

248 

225 

b200 

b!85 

b!70

Month

Ooto 

Hove 

Dece

Ca

Jami 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 194 

ary

st . . . .................

ember

ter year 1949-50 ..........

Feb. Mar

b!55 

*b!41 

1130 

b!35 

b!45

155

151 

149 

142 

135

133 

131 

155

172 

206

214

216 

203 

200 

195

»195 

222 

257

eso

674

592 

465 

367

Seoondfoot-days

2,006 

5,392 

7,017

91,080

6,280 

6,713 

8,855 

8,727 

17,835 

27,008 

11,499 

3,150 

1,716

106,198

Peak discharge (base, 500 sec.-ft .) .--Nov

576 sec.-ft.; Feb. 24 (5 p.m.) 794 sec. -ft.

299

323 

697 

1 674

520 

424

359 

299 

264

236 

219 

203 

195 

180

211 

299

363 

527 

238

260 

248 

230 

216 

203

190 

182 

177 

167 

167 

172

Maximum

195

712 

525

1,490

402 

680 

693 

438 

954 

1,210 

815 

155 

90

1,210

Ap r ] May

270

274 

251 

£42

£25 

211 

200

200

C95 

284 

315

416 

4S3 

388 

363 

411

429 

398 

339 

295

267

254 

239

230 

236

254 

260 

254 

248 

254

251

236 

251 

299

465 

752

883 

801

766 

752 

668 

576 

560

609 

700 

668 

59P 

-.04

752 

954 

898 

794 

787 

77i

Minimum

37 

64 

117

37

ISO 

130 

167 

200 

236 

604 

160 

67 

47

37

June

822 

914 

1,000 

] ,1.3d 

3,130

978 

822 

752 

719 

759

838 

890 

882 

86G 

838

930 

1 ,1'0 

1,170 

1 , 130 

1,210

1,170

1,030 

922 

794 

680

604 

604 

656 

766 

838

Mean

£4.7 

180

225

250

203 

240 

286 

291 

575 

900 

371 

102 

57.2

291

July

815 

787 

719 

668

63E

597 

555

505 

465 

424

384 

3R3 

351

335 

323

299

284 

2?4 

274 

257

i216 

?08

195 

185 

185 

182 

167 

16u

Per 

square 

mile

0.874 

2.43 

3.05

3.38

2.74 

3.24 

3.86 

3.93 

7.77 

12.2 

5.01 

1.38 

.773

3.93

Aug.

155

146 

140 

133

123 

121

117

133 

107

108 

102 

98 

98 

117

109 

98 

93 

90

87

85 

83 

90 

90 

82

79 

77 

74 

71 

70 

67

Sept.

66 

63 

63 

62 

61

61 

59 

58 

56 

55

55 

53 

52 

51

50

50 

50 

49 

49 

48

48 

48 

47 

49 

55

90

76 

74

62 

56

Runoff

Iiches

1.01 

2.71 

3.53

45.78

3.16 

3.37 

4.45 

4.39 

8.96 

13.57 

5.78 

1.58 

.8C

53.37

Acre-feet

3,980 

10,690 

13,920

180,700

12,460 

13,320 

17,550 

17,310 

35,380 

53,570 

22,810 

6,250 

3,400

210,600

. 27 (6 to 10 p.m.) 815 sec.-ft.; Dec. 28 (6 to 7 a.m.) 

, Mar. 4 (4 p.m.) 860 sec.-ft.; May 13 (8 to 10 a.m.)

978 sec.-ft.; MaE 27 (6 to 9 p.m.) 1,010 sec.-ft.; June 4 (11:30 p.m.) 1,170 sec.-ft.; June 17 

(7:30 a.m.l 1,210 sec.-ft.; June 20 (6 to 8 a.m.) 1,210 sec.-ft.; June 3C (11 p.m.) 845 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice; discharge computed on baala of records for nearby 

streams.

Note_. --Shifting-control method used Oct. 1-27, Feb. 16-23, May 26 to Sept. 12.
94 HYLEBOS CREEK BASIN

Hylebos Creek near Tacoma, Wash.

Location. Water-stage recorder, lat. 47°16'05", long. 122°19'40", in NW^- S3C. 32, T. 21 

N., R. 4 E., 5 miles upstream from mouth and 5.3 miles east (corrected) of Tacoma.

Drainage area.--11.8 square miles.

Records available.--June 1949 to September 1950 (discontinued).

Extremes. Maximum discharge during year, 108 second-feet Mar. 17 (gage height, 2.65 feet); 

minimum, 6.4 second-feet Aug. 29, 31.

1949-50: Maximum discharge, that of Mar. 17, 1950; minimum, that of Aug. 29. 31, 

1950.

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

those for periods of no gage-height record, which are poor. Some diversion for domestic 

use. Possibly some regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

e

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.4 

8.3 

8.4 

8.7 

8.4

8.5 

8.6 

8.4 

8.4

8.3

8.5 

8.3 

8.3 

8.2 

8.2

8.2 

8.2 

8.2 

8.3 

8.2

8.2 

8.2

8.2 

8.2 

8.2

8.3 

8.7 

29 

10.5 

10 

9.6

Nov.

10 

9.6 

10 

10

10

9.6 

10 

9.6 

10 

11

12.5 

£9 

17 

14.5 

10

9.6 

9.6 

9.2 

9.2

8.8

8.4

12 

10.5 

11 

13.5

15.5 

25 

13.5

12 

13

Dec.

12.5 

15

12 

11 

10.5

10.5 

10 

9.6 

10.5 

10

9.6 

11 

11 

10 

11

10.5 

11.5 

11.5 

10 

10.5

11 

11

13.5

12

11 

30 

27 

19 

16.5 

16

Jan.

14 

12.5 

12.5 

12 

12.5

22 

19 

17.5 

14.5 

20

16 

14.5 

13.5 

13

12.5

12.5 

12 

12 

31 

45

44

58 

38 

24 

18

16 

14 

12.5 

12 

11.5 

11.

Month *£

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 

ary

h ................ ....

st .......... .............

ember ....... .............

Feb

10.5 

10 

10 

11 

12

14. fa 

13.5 

19 

13.5 

14

12 

16 

18 

14 

15.5

13.5 

11 

10 

9.6 

8.8

8.4 

8.4 

14.5

15.5 

27

25

18 

15

ond-

-days

284.1 

363.6 

407.2

-

597.5 

388.2 

641.5 

488.5 

372.5 

328.5 

309.3 

316.7 

297.6

ter year 1949-50. ......... 4,795.2

Mar.

13 

15 

27 

39 

35

?2

18 

16.5 

16 

15.5

14.5 

14 

14 

14 

13.5

21 

44 

31 

28 

22

22 

22

22 

18.5 

17.5

19 

19 

17 

16.5 

17.5 

17.5

Maximum

29 

29 

30

-

58 

27 

44 

23 

14 

12.5 

11 

25 

19

58

Apr.

18 

17.5

17 

16 

16

16 

16 

16 

16 

15.5

17 

23 

18 

16 

20

17 

15.5 

15.5 

15

15 

15.5 

15 

15 

15

14.5 

15.5 

14 

13.5 

13.5

May

14 

13.5 

13.5 

13.5

13.5

13

12.5 

12.5 

12.5 

12.5

12 

12 

12 

11.5 

12

11.5 

12.5 

12 

11.5

11.5

11.5 

11.5

11 

11

11

11 

11 

11 

11 

11 

12

Minimum

8.2 

8.4 

9.6

-

11 

8.4 

13 

13.5 

11 

10 

9 

7.2 

6.8

6.8

June

12.5 

11.5 

11 

11 

11

11.5 

11.5 

10 

11 

11

11 

11 

11 

11.5 

11.5

11 

11 

11 

11 

11

10.5 

11 

11 

11 

10.5

10.5 

10 

10.5 

10.5

Mean

9.16 

12.1 

13.1

-

19.3 

13.9 

20.7 

16.3 

12.0 

11.0 

9.98 

10.2 

9.92

13.1

July

1C 

10 

10 

10.5 

10

10.5 

10.5 

11 

11 

11

10.5 

10 

10 

10 

10

10 

9.6 

9.6 

9.6 

9.6

9.6 

9.6 

9.6 

10.5 

10.5

9.6 

9.6 

9.4 

9.3 

9.2 

9

Per 

square 

mile

0.776 

1.03 

1.11

-

1.64 

1.18 

1.75 

1.38 

1.02 

.932 

.846 

.864 

.841

1.11

Peak discharge (base, 65 sec. -ft.). Jan. 20 (9:3O a.m.) 74 sec. -ft.; Mar. 3 (10

Aug

9

8.8 

8.8 

8.7 

8.6

8.5 

8.5 

8.4 

8.3

8.2

8 

8 

8 

8.5 

20

25 

15 

13 

11 

10

10 

11 

12.5 

11.5 

10.5

10.5 

9.2

7.6 

7.2 

7.2

7.2

Sept

6.8 

6.8 

7.2 

6.0 

8.0

8.4 

8.4 

9.2 

9.2

10

10.5 

10.5 

10 

10 

10

10 

10.5

8.8 

9.6

10

10 

9.2 

8.8 

15.5 

19

15.5 

10.5 

9.2 

9.2

8.8

Runoff

Inches

0.90 

1.15

1.28

-

1.88 

1.22 

2.02 

1.54 

1.17 

1.04 

.97 

1.00 

.94

15.11

:30 p.m.

Acre-feet

564 

721 

808

-

1,190 

770 

1,270 

969 

739 

652 

613 

628 

590

9,510

) 66 sec.-
DUWAMISH RIVER BASIN

Green River near Lester, Wash.

Location.--Water-stage recorder, lat. 47°12'30", Ions. 121° 33 ' 20", In NE^-SE^ sec. 20, T. 

smrr, R. 10 E., l£ miles downstream from McCain Creek and 3 miles west of Lester.

Drainage area. 104 square miles.

Records available . October 1945 to September 1950.

Extremes.--Maximum discharge during year, 3,610 second-feet Nov. 27 (gage height, 8.62 

reet); minimum, 37 second-feet Oct. 3.

1945-50: Maximum discharge, 9,200 second-feet about Dec. 11, 1946 (gage height, 

12.7 feet, from high-water mark in well), from rating curve extended above 2,600 

second-feet; minimum, 33 second-feet Sept. 29, Oct. 18, 19, 1946.

Remarks.--Records good except these for periods of no 

wo diversion or regulation.

ge-height record, wl-ich are poor.

Rating table, water year 1949-5O (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Nov. 24-30, Sept. 9-30)

3.3 33 4.1 138 5.1 393 7.0 1,510 

3.5 50 4.3 166 5.5 553 7,5 1,990 

3.7 71 1.5 2T2 6.O 800 8.0 2,540 

3.9 97 4.8 294 6.5 1,110 8.5 3,180

Discharge, in second feet, water year October 1949 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

Oct.

42 

39 

38

63 

130

138 

103 

84 

270 

390

393 

434 

7,2? 

249 

230

202 

184 

166 

152 

141

133 

125 

118 

112 

108

104 

106 

912 

622 

423 

332

Nov.

277 

238 

210 

188 

173

158 

148 

144 

139 

133

141 

230 

319 

601 

536

415 

338 

294 

260 

233

210 

228 

355 

1,290 

1,180

1,480 

3,160 

2,560 

1,690 

1,180

Dec.

945

1,260 

1,010 

772

645

544 

469 

408 

382 

336

306 

285 

265 

249

246

230 

222 

210 

195 

186

205 

335 

423 

426 

336

393 

359 

2,110 

1,300 

915 

594

Jan.

549 

453 

386 

355 

319

322 

310 

295 

280 

265

255 

240 

230 

215 

210

200 

190 

180 

190 

250

350 

640 

640 

550

400

350 

300 

270 

240 

220 

200

Feb.

180 

160 

150 

160 

170

170 

165 

160 

160 

155

152 

148 

160 

168 

230

300 

310 

306 

319 

297

277 

335 

426 

1,300 

1,300

1,010 

772 

598

unntt. SecondMonth foot-days

Octc 

Nova 

Deoe

Ca

Jami 

Fabi 

Hare 

Apr! 

May 

June 

Julj 

Augl 

Sept

WE

lendar year 1949 . . 

ary

6,855 

18,508

17,313

178,373

1

st ..... . .......... . .

ember . .

9,854 

10,038 

18,201 

18,941 

35,691 

37,878 

12,033 

2,831 

1,818

ter year 1349-tO . ........ 189,961

Peak discharge (base, 1,500 sec. -ft.). N

2,600 sec. -ft,; Feb. 24 (3 p.m.) 1,690 sec. 

2,260 sec. -ft.; May 22 (S a.m.) 1,600 sec.- 

1,840 sec. -ft.; June 12 (6:30 a.m.) 1,510 s 

NotfL.--So gage-height record Jan. 7 to Pel

Mar.

510 

469 

921 

1,990 

1,560

1,110 

828 

670 

562 

485

423 

376 

342 

316 

303

393

745 

828 

670 

600

540 

500 

450 

400 

370

350 

350 

270 

285 

285 

300

Maximum

912

3,150 

2,110

3,160

640 

1,300 

1,990 

1,110 

2,140 

1,740 

1,040 

141 

146

3,160

Apr.

500

600 

550 

500 

470

490 

470 

450 

435

420

430 

540 

694 

645 

745

1,010 

1,110 

945 

855 

975

1,010 

855 

694 

594 

540

490 

469 

450 

473 

532

May

580 

589 

558 

536 

566

544 

502 

510 

594 

772

1,260 

1,890 

2,140 

1,940 

1,740

1,600 

1,560 

1,180 

975 

945

1,220 

1,540 

1,220 

1,080 

1,110

1,510 

1,740 

1,510 

1,300

1,260 

1,220

Minimum

38 

133 

186

38

180 

148 

270 

420 

502 

745 

135 

60 

44

38

June

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1,

1, 

1,

1, 

1, 

1,

1, 

1, 

1,

Mean

221 

617 

558

489

518 

358 

587 

631 

1,151 

1,263 

388 

91.3 

60.6

520

340 

460 

600 

740 

690

220 

040 

010 

010 

220

420 

460 

300 

180 

140

420 

640 

420 

500 

640

460 

140 

180 

945 

800

745 

828 

010 

180 

140

1950

July

1,

Per 

square 

mile

2.12 

5.93 

5.37

4.70

3.06 

3.44 

5.64 

6.07 

11.1 

12.1 

3.73 

.878 

.585

5.00

040 

885 

800 

745 

720

670 

598 

532 

477 

430

376 

351 

345 

342 

322

294 

280 

268 

282 

257

238 

228 

215 

200 

190

177 

166 

164 

16O 

146 

135

Aug.

128 

122 

118

112 

108

106 

104 

98 

93 

SO

84 

79 

81 

79 

141

137 

104 

93

S3 

79

76 

73 

83 

89 

77

72 

S9

64 

62

60

Sept.

59 

57 

56 

55 

54

53 

51 

49 

49 

48

47 

47 

49 

49 

49

48 

47 

47 

48 

48

46 

45 

44 

46 

58

123 

146 

122 

96 

82

Runoff

Inches

2.45 

6.62

63.79

3.52 

3.59 

6.51 

6.77 

12.76 

13.55 

4.30 

1.01 

.65

67.92

Acre feet

13,600 

36,710 

34,340

353,800

19,550 

19,910 

36,100 

37,570 

70,790 

75,130 

23,870 

5,620 

3,610

376,800

3V. 27 (11 a.m.) 3,610 sec. -ft.; Dec. 1-8 (3:3C to 5 a.m.) 

-ft.; Mar. 4 (10 a.m.) 2,310 sec. -ft.; Mry 13 (l a.m.) 

"t.; May 27 (7 a.m.) 1,790 sec. -ft.; June 5 -(4 a.m.) 

jo.-ft.j June 17 (2:30 a.m.) 1,740 sec. -ft. 

). 10, Mar. 20 to Apr. 11; discharge computed on basis
DUWAMISH RIVER BASIN

Green River near Palmer, Wash.

Lo£aclon.--Water-sta^e recorder, lat . 47°17'40", long. 121°49'20", in SW^NWi sec. 20, T. 

y l H - R -j8 E., l-j miles apstream from diversion dam and intake of Tacoma water-supply 

system, 2? miles downstream from North Fork, and 4 miles southeast of Palmer. Datum 

of gage is 912.6 feet above mean sea level (river-profile survey).

Drainage area. S31 square miles.

Records available .--October 1931 to September 1950.

Average discharge .--19 years, 1,063 second-feet.

Extremes. --Maximum discharge during year, 9,050 second-feet Mar. 4 (gage height, 13 64 

reeTT; minimum, 151 second-feet Oct. 3, Sept. 21, 22, 23, 24 (gage height, 4.20 feet).

1931-50: Maximum discharge, 23,200 second-feet Dec. 11, 1946 (gage height, 19 95 

fee-1 -); minimum, 81 second-feet Sept. 4, 5, 1934.

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

Rating table, water year 1949-50, except period of ice effect 

(gage height, In feet, and discharge, In second-feet)

4.2 151 5.0 460 6.5 1,220 10.0 3,920 

4.4 214 5.3 610 7.0 1,500 11.0 5,100 

4.6 288 5.6 760 8.0 2,140 12.0 6,430 

4.8 370 6.0 960 9.0 2,930 13.0 8,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4

5

6 

7 

8

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

160 

154 

151 

269

560

525 

438 

366 

828

1,280

1,620 

1,560 

1,140 

885 

835

760 

660 

595 

520 

470

438 

410 

384 

353 

332

328 

357 

2,760 

2,040 

1,360 

1,060

Nov.

885 

760 

660 

605 

555

510 

465 

451 

433 

410

498 

1,010 

1,310 

1,860 

1,740

1,340 

1,090 

935 

810 

735

660 

760 

1,120 

2,790 

2,840

3,110 

7,370 

6,150 

4,140 

*2,930

Dec.

2,430 

3,020 

2,590 

2,140 

1,860

1,560 

1,340 

1,200 

1,120 

985

885 

860 

810 

760 

810

785 

760 

710 

635 

610

710 

1,560 

2,000 

1,930 

1,680

1,680 

3,530 

6,620 

4,030 

2,930 

2,210

Jan.

,800 

,440 

,250 

,140 

,040

1,040 

910 

835 

785 

735

685 

660 

560 

a560 

a550

a540 

f530 

a520 

a550 

al.100

b2,430 

2,670 

2,280 

1,680 

al,500

al,300 

al,150 

al,000 

a900 

aSOO 

a730

Feb.

a670 

*f660 

a600 

a620 

635

635 

560 

555 

525 

515

510 

510 

710 

760 

685

1,500 

1,500 

1,390 

1,360 

1,220

1,170 

1,620 

2,140 

5,610 

5,100

4,030 

2,840 

2,350

M -,+h SecondMonth foot-days

Octc 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Apr. 

May 

June 

Jul5> 

Augvi 

Sept

Wa

mber .....................

lendar year 194£ 

ary

. . , - 4

ember .... ................

23,598 

48,932 

54,750

59,135

33,670 

40,980 

67,230 

59,990 

77,920 

75,780 

26,266 

8,640 

6,309

ter year 1949-50 .......... 524,065

Mar

1,930 

1,740 

2,930 

7,730 

5,490

3,920 

3,920 

2,350 

2,000 

1,740

1,500 

1,340 

1,220 

1,120 

1,090

1,360 

2,930 

3,200 

2,750 

2,280

1,930 

1,740 

1,560 

1,390 

1,280

1,200 

1,200 

1,120 

1,040 

1,090 

1,140

Maximum

2,760 

7,370 

6,620

7,370

2,670 

5,610 

7,730 

3,600 

4,250 

3,40Q 

2,070 

510 

438

7,730

Apr.

2,210 

2,350 

2,000 

1,740 

1,680

1,740 

1,620 

1,500 

1,390 

1,340

1,360 

1,740 

2,210 

2,000 

2,510

3,600 

3,500 

2,930 

2,590 

2,590

2,590 

2,280 

2,000 

1,740 

1,620

1,440 

1,440 

1,390 

1,390 

1,500

May

1,620 

1,680 

1,560 

1,620 

1,740

1,680 

1,560 

1,500 

1,560

1,860

2,510 

3,700 

4,250 

3,810 

3,400

3,200 

3,110 

2,750 

2,350 

2,210

2,510 

3,020 

2,670 

2,350 

2,350

2,750 

3,400 

3,110 

2,750 

2,750 

2,590

June

2,670 

2,840 

3,020 

3,400 

3,400

2,670 

2,280 

2,280 

2,210 

2,350

2,670 

2,750 

2,590 

2,350 

2,210

2,510 

3,110 

2,750 

2,750 

2,930

2,750 

2,510 

2,670 

2,280 

1,860

1,740 

1,740 

2,000 

2,280 

2,210

Minimum Mean

151 761 

410 1,631 

610 1,766

140 1,258

520 1,086 

510 1,464 

1,040 2,169 

1,340 2,000 

1,500 2,514 

1,740 2,526 

345 847 

211 279 

154 210

151 1,436

July

2,070 

1,800 

1,620 

1,560 

1,500

1,360 

1,250 

1,120 

1,060 

960

860 

785 

760 

760 

710

660 

635 

605 

685 

635

570 

535 

510 

470 

442

424 

397 

402 

406 

370 

345

Per 

square 

mile

3.29 

7.06 

7.65

5.45

4.70 

6.34 

9.39 

8.66 

10.9 

10.9 

3.67 

1.21 

.909

6.22

Peak discharge (base, 6,000 sec.-ft. J.--NOV. 27 (11 a.m.) 8,170 sec. -ft. j Dec.

AugI328 

320 

304 

292 

288

280 

284 

269 

254 

250

243 

239 

228 

225 

510

495 

341 

304 

273 

261

246 

243 

269 

304 

258

243 

225 

221 

218 

214 

211

Sept.

207 

204 

201 

201 

194

191 

184 

181 

181

178

175 

172 

172 

172 

169

169 

163

160 

160 

160

157 

154 

154 

172 

221

438 

428 

410 

316 

265

Runoff

Imhes

3.80 

7.88 

8.81

73.91

5.42 

6.60 

10.82 

9.66 

12.54 

12.20 

4.23 

1.39 

1.02

84.37

28 (4 a

Acre-feet

46,810 

97,060 

108,600

910,700

66,780 

81,280 

133,300 

119,000 

154,600 

150,300 

52,100 

17,140 

12,510

1,039,000

m.) 7,830

sec.-ft.; Feb. 24 (2 p.m.) 6,430 sec.-ft.; Mar 

* Winter discharge measurement made on this day.

a So gage-height record; discharge computed on basis of records for nearby streamr. 

b 3cage-discharge relation affected by ice. 

f Computed on basis of partly estimated gage-height record.
DUWAMISH RIVER BASIN 97 

Green River near Auburn, Wash.

Location.--Water-stage recorder, lat. 47°18'15", long. 122°12'10", In lot Z, sec. 17, T. 

2~T~N. , R. 5 E. , ij miles east of Auburn and 2 miles downstream from Big Soos Creek. 

Datum of gage is at mean sea level, datura of 1929.

Drainage area. 386 square miles.

Records available . August 1936 to September 1950.

Average discharge.--14 years, 1,274 second-feet.

Extremes. Maximum discharge during year, 11,800 second-feet Mar. 4 (elevation, 63.82 feet): 

 minimum, 166 second-feet Oct. 1, 3; minimum elevation, 54.67 feet Sept. 23, 24.

1936-50: Maximum discharge, 22,000 second-feet Dec. 11, 1946 (elevation, 68.16

feet); minimum, 113 second-feet Sept. 25, 1940; minimum elevation, 54.2] feet Sept. 1-3,

1945.

Remarks. Records good except those for period of no gage-height record, w]r ich are fair. 

City of Tacoma diverts about 108 second-feet from river near Palmer, several miles 

above station, for municipal use. No regulation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

171 

171 

166 

189 

426

618 

554 

448 

441 

1,240

1,380 

1,670 

1,280 

970 

866

866 

746 

666 

594 

539

485 

456 

419 

400 

380

367 

393 

2,000 

2,400 

1,520 

1,200

Nov.

954 

834 

746 

666 

602

562 

515 

508 

492 

477

500 

1,040 

1,420 

1,770 

1,870

1,470 

1,240 

1,050 

938 

850

762 

738 

1,200 

2,160 

2,780

2,890 

7,030 

7,580 

5,000 

3,600

Dec.

2,780 

3,240 

3,120 

2,500 

2,120

1,920 

1,670 

1,520 

1,420 

1,330

1,200 

1,150 

1,140 

1,090 

1,090

1,130 

1,100 

1,100 

1,020 

938

1,050 

1,570 

2,400 

2,670 

2,230

2,230 

3,190 

8,620 

5,710 

3,840 

2,890

Jan.

2,340 

1,970 

1,720 

1,620 

1,420

1,620 

1,620 

1,470 

1,380 

1,330

1,280 

1,200 

1,100 

970 

970

930 

898 

850 

930 

1,890

3,720 

4,090 

3,840 

2,780 

2,120

1,920 

1,720 

1,570 

1,420 

1,280 

1,200

Feb.

1,140 

1,060 

1,020 

1,050 

1,090

1,200 

1,150 

1,280 

1,240 

1,150

1,150 

1,140 

1,380 

1,470 

1,770

2,120 

2,230 

2,020 

1,970 

1,820

1,720 

1,970 

2,450 

6,100 

6,870

5,840 

4,480 

3,360

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

2,780 

2,500 

3,220 

9,520 

8,980

6,270 

4,610 

3,720 

3,240 

2,890

2,560 

2,340 

2,180 

2,000 

1,800

2,100 

3,500 

4,000 

3,300 

2,900

2,600 

2,300 

2,200 

2,100 

2,000

1,900 

1,800 

1,750 

1,700 

1,800 

1,900

Apr.

2,800 

3,000 

2,500 

2,200 

2,100

2,400 

2,300 

2,200 

2,100 

1,970

1,920 

2,230 

2,780 

2,620 

2,890

4,610 

4,480 

3,840 

3,240 

3,240

3,240 

3,000 

2,620 

2,340 

2,120

2,020 

1,970 

1,920 

1,870 

1,920

Secondfoot-days

24,021 

52,244 

68,978

527,422

53,168 

61,240 

96,460 

78,440 

87,700 

79,450 

29,585 

10,528 

7,308

649,122

May

2,020 

2,120 

2,020 

2,020 

2,180

2,180 

2,020 

1,920 

1,920 

2,070

2,620 

3,840 

4,610 

4,220 

3,720

3,840 

3,480 

3,120 

2,670 

2,450

2,670 

3,240 

3,000 

2,620 

2,500

2,890 

3,480 

3,480 

3,000 

3,000 

2,780

Maximum

2,400 

7,580 

8,620

8,620

4,090 

6,870 

9,520 

4,610 

4,610 

3,600 

2,120 

714 

515

9,520

Peak discharge (base, 6,000 sec. -ft .). Nov. 27 (5:30 p.m.) 9,130

June

2,780 

3,000 

3,120 

3,600 

3,600

3,000 

2,560 

2,400 

2,340 

2,450

2,780 

3,000 

2,780 

2,500 

2,340

2,450 

3,240 

3,000 

2,780 

3,000

3,000 

2,560 

2,780 

2,450 

2,020

1,820 

1,770 

1,920 

2,180 

2,230

Minimum

July

2,120 

1,920 

1,720 

1,620 

1,570

1,470 

1,380 

1,240 

1,200 

1,100

997 

922 

874- 

858 

826

794 

738 

714 

738 

762

682 

634 

602 

578 

547

523 

500 

503 

515 

485 

448

166 

477 

938

158

850 

1,020 

1,700 

1,870 

1,920 

1,770 

448 

248 

178

166

Aug.

419 

400 

380 

374 

354

348 

354 

337 

320 

308

292 

287 

282 

282 

406

714 

477 

380 

343 

314

297 

287 

308 

343 

326

292 

277 

268 

258 

253 

248

M^an

775 

1,741 

2,225

1,445

1,715 

2,187 

3,112 

2,615 

2,829 

2,648 

954 

340 

244

1,778

Sept.

240 

232 

228 

228 

228

219 

215 

211 

207 

203

203 

200 

196 

196 

193

193 

193 

193 

193 

189

185 

182 

178 

193 

253

412 

515 

492 

412 

326

Runoff In 

acre-feet

47,640 

103,600 

136,800

1,046,000

105,500 

121,500 

191,300 

155,600 

174,000 

157,600 

58,680 

20,880 

14,500

1,288,000

sec. -ft.; Dec. 28 (10:30 a.m.)

9,810 sec.-ft.7 Feb. 24 (8 p.m.) 7,650 sec.-ft.; Mar. 4 (6:30 p.m.) 11,800 sec.-ft.

Note. No gage-height record Mar. 14 to Apr. 9; discharge computed on basis of records for station 

near Palmer.
98 DUWAMISH RIVER BASIN

Snow Creek near Lester, Wash.

Location.--Water-stage recorder, lat. 47°15', long. 121°24', in NW?NW£ sec. 3, T. 20 N., 

K. 11 E., a quarter of a mile upstream from mouth and 5| miles northeast of Lester.

Drainage area. 11.9 square miles.

Records available. October 1945 to September 1950.

Extremes. Maximum discharge during year, 692 second-feet Nov. 27 (gage height, 4.36 feet); 

minimum, 6.8 second-feet Oct. 3, Sept. 17-24.

1945-50: Maximum discharge, 988 second-feet Dec. 11, 1946, from rating curve extended above 160 second-feet; maximum gage height, 4.39 feet Nov. 8, 1947; mirimum discharge, 

4.5 second-feet Oct. 17-19, 1946.

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

which are fair. No diversion or regulation.

Rating table, water year 1949-5O, except periods of Ice effect or backwater from coffer dam

(gage height, In feet, and discharge, in second-feet)

(Shifting-control method used Sept. 6-18, Z3-3O)

2.2 7.1 2.7 49 3.6 265 

2.3 13 3.0 97 3.9 400 

2.5 28 3.3 171 4.3 650

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.5 

7.1 

7.1 

15.5 

38

33 

27 

22 

113 

149

180 

180 

110 

75 

62

53 

47 

41 

37 

34

31 

29 

28 

27 

26

25 

25 

220 

132 

87 

65

Nov.

53 

46 

40 

36 

33

30 

28 

27 

26 

24

a27 

a 40 

f76 

a!15 

a90

a68 

a53 

a47 

a42 

a38

a35 

a37 

a48 

a!90 

a!80

a220 

*608 

406 

237 

163

Dec.

139 

197 

149 

106 

86

67 

58 

51 

47 

41

38 

36 

33 

31 

30

28 

28 

26 

24 

24

24 

46 

51 

48 

43

40 

80 

293

180 

121 

88

Jan.

68 

57 

45 

40 

36

40 

35 

32 

30

28

26 

24 

22 

20 

20

19 

18 

17 

17 

20

51 

101 

112 

100 

70

50 

40 

35 

30 

25 

22

Month foot

Octo 

Nove 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

ffa

lendar year 194 

ary

h

ember .....................

Feb.

20 

18 

17 

18 

20

24 

22 

24 

21

*18

17 

17 

18 

20 

25

40 

39 

38 

36

31

30 

37 

46 

147 

152

117 

93 

75

ond-

-days

1,933.2 

5,063 

2,253

3,275.0

1,250 

1,180 

3,344 

2,265 

5,247 

5,910 

2,659 

554.5 

308.6

ter year 1949-50- ......... 29,967.3

Mar.

62 

55 

108 

332 

227

158 

117 

91 

75 

62

55 

50 

47 

43 

40

44 

73 

86 

75 

67

59 

55 

50 

48 

44

41 

40 

37 

35 

34 

34

Maximum

220 

608 

293

608

112 

152 

332 

152 

309 

328 

227 

30 

28

608

Apr.

55 

64 

58 

54 

51

53 

51 

49 

47 

46

47 

*55 

68 

67 

81

121 

152 

134 

115 

119

124 

110 

93 

82 

72

65 

59 

57 

57 

59

May

67 

68 

67 

67 

75

72 

67 

65 

72 

93

158 

261 

309 

277 

244

227 

221

188 

155 

152

191 

234

197 

168 

180

237 

289 

237 

206 

203 

200

June

221 

244 

277 

328 

297

203

174 

163 

168 

209

251 

254 

221 

200 

197

244 

289 

254 

277 

314

277 

212 

254 

191 

149

139

166 

218 

265 

254

Minimum Mean

7.1 62.4 

24 102 

24 72.7

7.1 77.5

17 40.3 

17 42.1 

34 75.6 

46 75.5 

65 169 

139 230 

28 85.8 

11 17.9 

6.8 10.3

6.8 82.1

July

227 

191 

177 

180 

168

149 

134 

110 

101 

86

75 

73 

80 

78 

72

64 

61 

61 

67 

58

54 

53 

50 

47 

42

39 

35 

35 

34 

30 

28

Per 

square 

mile

5.24 

8.57 

6.11

6.51

3.39 

3.54 

6.35 

6.34

14.2 

19.3 

7.21 

1.50 

.866

6.90

Peak discharge (base, 350 sec. -ft.}. Oct. 28 (8 a.m.) 360 sec. -ft. j Nov. 27 (9

Aug.

26 

25 

23 

22 

21

20 

19.5 

18.5 

17.5 

17

16.5 

15.5 

15.5 

15 

30

26

21 

18.5 

17.5 

16.5

15.5 

15 

17.5 

18.5

15

13.5 

12.5 

11.5 

11.5 

11.5 

11

Sept.

10.5

10.5 

10.5 

9.7 

9.1

9.1 

8.6 

8 

8 

8

8 

8 

7.5 

7.5 

7.5

7.5 

7.1 

6.8 

C6.8 

C6.8

C6.8 

C6.8 

6.8 

7.1 

9.1

26 

28 

22

16.5 

14

Runoff

Inches

6.04 

9.57 

7.04

88.38

3.91 

3.69 

7.33 

7.08 

16.40 

21.60 

8.31 

1.73 

.96

93.66

Aore feet

3,830 

6,080 

4,470

56,080

2,480 

2,340 

4,650 

4,490 

10,410 

13,710 

5,270 

1,100 

612

59,440

30 a.m. ) 692 sec.-

ft.; Mar.4 (8:30 a.m.J 385 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record! discharge computed on basis of records for nearby streams.

c Backwater from coffer dam for work on control; discharge interpolated.

f Computed on basis of partly estimated gage-height record.

Note. Stage-discharge relation affected by Ice Jan. 3-20, Jan. 24 to Feb. 19 (no gage-height record Jan. 4-6, 14-20, Jan. 25 to Feb. 7; discharge computed on basis of weather records and records 

for nearby streams).
DUWAMISH RIVER BASIN

Friday Creek near Lester, Wash.

Location. Water-stage recorder, lat. 47°13', long. 121°27', in SE^NWi sec. 18, T. 20 N. ,

 K! 11 E. , 0.4 mile upstream from mouth and 2 miles northeast of Lester.

Drainage area. 4.6 square miles.

Records available. October 1945 to September 1950.

Extremes. Maximum discharge during year, 228 second-feet Nov. 27 (gage height, 4.53 feet);

 minimum, 1.3 second-feet Oct. 2, 3 (gage height, 3.00 feet).

1945-50: Maximum discharge, 497 second-feet Dec. 11, 1946 (gage height, 4.90 feet); 

minimum, 1.3 second-feet Sept. 26-29, Oct. 2, 3, 1949.

Remarks. Records excellent Oct. 9 to Jan. 2, Apr. 13 to May 28, good Feb. 13 to Apr. 12,

 l<Ifry~~28 to Sept. 14, and fair Oct. 1-8, Jan. 3 to Feb. 11. No diversion or regulation.

Rating table, water year 1949-50, except periods of ioe effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 4 to Nov. 3, May 28 to Sept. 14)

3.0 1.3 3.6 33 

3.1 3.4 3.8 57 

3.2 6.9 4.0 90 

3.3 11.5 4.3 159 

3.4 17 4.5 218

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.7 

1.5 

1.3 

6.2 

19

16 

11.5 

9.7 

32 

48

50 

52 

38 

28 

27

23 

20 

18.5 

17 

16

15 

13.5 

12.5 

12 

11.5

11.5 

13 

83 

43 

30 

24

Nov.

20 

17 

15 

12.5 

11.5

10.5 

10.5 

10.5 

10 

10

13.5 

21 

23 

45 

33

26 

21 

19 

17 

15.5

14 

17 

24 

74 

66

92 

209 

*143 

81 

60

Dec.

52 

72 

54 

41 

33

28 

23 

20 

19 

17

15.5 

15 

13.5 

13

13

12 

11.5 

11 

10 

9.7

10.5 

23 

26 

22 

19

17.5 

36 

124 

64 

42 

31

Jan.

25 

20 

18 

16 

15

16 

17 

15 

14 

13

12.5 

12 

11.5 

11 

10.5

10 

9.5 

9

10 

20

60 

100 

90 

60 

35

25 

20 

15 

12 

10 

9

Feb.

8

7.5 

7 

7.5 

8

9 

8.5 

9 

8 

*b7.5

T>7 

6.9 

7.8 

8.7 

13.5

17 

16.5 

15.5 

15.5 

14

12.5 

17.5 

21 

88 

64

45 

32 

26

Month Seoondfoot-days

Octo 

Nove 

Dece

Ca

Jann 

Febi 

Marc 

Apr! 

May 

June 

Juls 

Angu 

Sept

Wa

lendar year 194' 

ary

11

nary

1 .........................

st ........................

ember .....................

705.4 

,141.5 

898.2

,214.8

721 

508.4 

821,5 

914 

,850 

,557 

,079 

260.1 

160.9

ter year 1949-50 .......... 11,617.0

Mar.

21 

19 

43 

119 

74

49 

34 

27 

23 

20

17 

16 

14 

13 

13

16.5 

41 

38 

28 

23

21 

19 

17 

16.5 

15.5

15 

15 

13.5 

13 

13.5 

14

Maximum

83 

209

124

209

100 

88 

119 

54 

104 

119 

90 

16 

15

209

Apr.

36 

32 

25 

22 

23

25 

23 

22

20 

20

21 

*Z8 

32 

29 

38

49

54 

43 42" 

45

44 

36 

30 

28 

25

23 

23 

23 

25 

28

May

28 

28 

28 

27 

29

27 

26 

27 

30 

41

62 

94 

104 

90 

81

74 

76 

63 

53 

54

68 

77 

68 

60 

62

76 

98 

81 

74 

74 

70

Minimum

1.3 

10 

9.7

1.3

9

6.9 

13 

20 

26 

60 

10.5 

5 ..5 

3.4

1.3

Peak discharge (base, 150 sec. -ft.) .--Nov. 27 (4, 7, 9 a.m.)

June

76 

83 

92 

110 

102

72 

64 

63 

63 

72

83 

86 

77 

70 

70

90 

112 

100 

108 

119

102 

88 

98

77 

64

60 

69 

85 

102 

100

Mean

22.8 

38.0 

29.0

30.7

23.3 

18.2 

26.5 

30.5 

59.7 

85.2 

34.8 

8.39 

5.36

31.8

P 

sqi 

m

July

90 

79 

74 

72 

68

63 

56 

48 

43 

38

33 

32 

32 

31

28

25 

24 

23 

27 

22

20 

20 

19 

17.5 

17

15.5 

13.5 

13.5

13 

11.5 

10.5

Aug.

10.5 

11 

10.5 

10 

9.7

9.2 

9.2

8.7 

8.3 

7.8

7.4 

7.4 

6.9 

6.9 

16

12

9.7 

8.7 

7.8 

7.4

6.9 

6.9

8.7 

8.3 

7.4

6.9 

6.6 

6.2 

5.8 

5.8 

5.5

Sept.

5.5 

5.2 

5.2 

5.2 

5.2

4.8 

4.8 

4.8 

4.4 

4.4

4.1 

4.1 

4.1 

4.1 

4.1

4.1 

4.1 

3.8 

3.8 

3.8

3.8 

3.4 

3.4 

4.1 

5.5

15 

12.5 

10 

7.4 

6^2

er Runoff

le Inches

4.96 5.70 

8.26 9.23 

6.30 7.26

6.67 90.66

5.07 5.83 

3.96 4.11 

5.76 6.64 

6.63 7.39 

13.0 14.96 

18.5 20.67 

7.57 8.72 

1.82 2.10 

1.17 1.30

6.91 93.91

Acre-feet

1,400 

2,260 

1,780

22,240

1,430 

1,010 

1,630 

1,810 

3,670 

5,070 

2,140 

516 

319

23,040

228 sec. -ft.; Bee. 28 (4 a.m.) 156

sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Jan. 3 to Feb. 9j discharge computed on basis of weather records and 

records for nearby streams.
100 DUWMISH RIVER BASIN

Smay Creek near Lester, Wash.

Location. Water-stage recorder, lat. 47°15'40", long. 121°33'50", in SW-J- sec. 32, T. 21 

N., R. 10 E., 3| miles upstream from mouth and 4| miles northwest of Lester.

Drainage area. 11.3 square miles.

Records available.--September 1946 to September 1950.

Extremes.--Maximum discharge during year, 332 second-feet Nov. 27 (gage height, 4.22 feet); 

minimum, 8.4 second-feet Oct. 1-3 (gage height, 2.60 feet).

1946-50: Maximum discharge not determined, probably occurred Dec. 11, 1946, when 

recorder was dislodged by high water; minimum. 6.2 second-feet Oct. 17-19, 1946 (gage 

height, 0.92 foot, site and datum then in use).

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

which are poor. No diversion or regulation.

Rating table, water year 1949-50, except period of ice effec 

(gage height, in feet, and disoJiarge, In second-feet)

8.4

13

3.]

3.2 

3.4 

3.7 

4.0 

4.2

59

91

157

247

323

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14

15

16

17 

18 

19 

20

21 

22 

23 

£4 

25

26 

27 

28 

29 

30 

31

Oct.

8.8 

8.4 

8.4

13 

23

20 

17.5 

16 

40 

77

88 

97 

76 

60 

54

46 

42 

38 

34 

30

29 

27 

25 

24 

23

23 

24 

105 

88 

68 

56

Nov.

49 

43 

39 

36 

34

30 

29 

28 

27 

26

30 

41 

45 

74 

70

59 

51 

46 

42 

39

36 

42 

42 

88 

99

147 

303 

254 

181 

135

Dec.

115 

133 

124 

101 

88

76 

66 

60 

56 

51

47 

45 

43 

41 

40

38 

37 

34 

32 

30

30 

44 

52 

55 

52

50 

72 

165 

138 

107 

88

Jan.

76 

64 

60 

60 

60

51 

43 

40 

37 

34

32 

30 

a2B 

a27 

a26

a25 

a24 

a23 

a23 

a90

111 

113 

97 

81 

a70

a62 

a57 

a52 

a49 

a46 

a42

Feb.

a40 

a38 

a36 

a34 

a32

a31 

b28 

b26 

b24 

b22

*b21 

b22 

24 

25 

37

43 

43 

43 

42

40

41 

51 

56 

152 

160

138 

111 

89

Month <.Se ?°2d~ foot-days

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Ba

lendar year 194S 

ary 1

ember ................ ....

,289.1 

,165 

,110

,201.6

,633 

,449 

,272 

,951 

,484 

,766 

,966 

613.5 

359.7

ter year 1949-5O . ... .... 24,O58.3

Peak discharge (base, 20O sec.-ft. ).--Nov

sec. -ft.; June 4,5 (5 p.m. to 4 a~m. ) 208 3 

* Winter discharge measurement made on th 

a No gage-height record; discharge comput 

b Sbage-discharge relation affected by ic

Mar.

77 

70 

91 

193 

181

143 

111 

93 

79 

70

60 

55 

51 

49 

46

55 

86

91 

82 

72

65 

58 

54 

51 

47

45

43 

40 

39 

37 

38

Maximum

105 

303 

165

303

113 

160 

193 

115 

179 

208 

140 

28 

19.5

303

Apr.

55 

54 

50 

49 

49

49 

47 

46 

44 

44

44

52 

59 

60 

77

105 

115 

105 

95 

93

91 

86 

77 

70 

64

58 

55 

54 

52 

52

May

55 

56 

56 

56 

59

58 

55 

55 

58 

64

86 

140 

173 

160 

147

140

143 

135 

118 

111

124 

145 

135 

122 

118

143

179 

168 

147 

140 

138

June

145 

155 

173 

202 

199

157 

145 

140 

138 

147

165 

170 

155 

145 

138

165 

208 

187 

187 

193

176 

157 

170 

147 

124

113 

120 

138 

157 

150

Minimum Mean

8.4 41 . 6 

26 72.2 

30 68.1

8.4 55.3

23 52.7 

21 51.8 

37 73.3 

44 65.0 

55 112 

113 159 

28 63.4 

14 19.8 

9.6 12.0

8.4 65.9

27 (9:30 a.m.) 332 sec.-ft. 

BO. -ft.; June 17 (5 to 8 a.m. 

is day. 

sd on baa is of records for net

July

140 

126 

113 

111 

107

97 

89 

82 

77 

71

65 

60 

60 

60 

56

54 

51 

49 

52 

49

45 

44

42 

39 

37

34 

34

32 

32 

30 

28

Per 

square 

mile

3.68 

6.39 

6.03

4.89

4.66 

4.58 

6.49 

5.75 

9.91 

14.1 

5.61 

1.75 

1.06

5.83

Aug.

27 

26 

24 

24 

23

22 

22 

22 

21 

20

19.5 

19 

IB 

IB 

28

24

21 

20 

19 

19

IB 

17.5

19 

18 

16

15.5 

15 

15 

14.5 

14.5 

14

Sept

13.5 

13.5 

13 

13 

13

12.5

12 

12 

11.5 

11.5

11.5 

11 

10.5 

10.5 

10.5

10.5 

10.5 

10 

10 

10

10 

9.6 

9.6 

11 

12.5

19.5 

17.5 

15 

12.5 

12

Runoff

Inches

4.24 

7.13 

6.94

66.49

5.37 

4.77 

7.48 

6.42 

11.47 

15.69 

6.47 

2.02 

1.18

79.18

Mar. 4 (1 to 5 

224 sec.-ft.

irby streams.

Acre-feet

2,560 

4,290 

4,190

40,080

3,240 

2,870 

4,510 

3,870 

6,910 

9,450 

3,900 

1,220 

713

47,720

p.m.) 211
DtWAMISH RIVER BASIN 101

Charley Creek near Eagle Gorge, Wash.

Location. Water-stage recorder, lat. 47°15'00", long. 121°47'00", in SW^NWi sec. 3, T. 20 

M., H. 8 E., 300 feet downstream from Beaverdam Lake Creek, l| miles south of Eagle 

Gorge, ana If miles upstream from mouth.

Drainage area.--10.6 square miles.

Records available.--September 1946 to September 1950.

Extremes. Maximum discharge during year, 688 second-feet Mar. 4 {gage heigi-t, 4.55 feet); 

minimum, 12 second-feet Sept. 23, 24 {gage height, 1.21 feet).

1946-50: Maximum discharge, 1,380 second-feet Dec. 11, 1946 {gage height, 6.17 

feet), from rating curve extended above 270 second-feet by logarithmic plotting; minimum, 7.2 second-feet Oct. 19, 1946 {gage height, 1.16 feet).

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

control, which are fair. No diversion or regulation.

Rating tables, water year 1949-50, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Feb. 11 Feb. 12 to Sept. 3O

1.3 11 2.5 107 1.2 12 2.5 133 

1.5 19 3.0 187 1.5 26 3.0 227 

1.7 30 3.5 292 1.7 40 3.5 342 

1.9 44 4.0 425 1.9 57 4.0 488 

2.2 71 2.2 91 4.5 668

Discharge, in second-feet, water year October 1949 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

Oct.

13 

12.5 

12.5 

42 

65

60 

56 

46 

100 

100

224 

164 

103 

74 

83

72 

65 

58 

54 

47

41 

37 

33

29 

27

29 

33

280 

150 

100 

70

Nov.

58 

46 

39 

36 

33

31 

29 

29 

27 

26

42 

95 

139 

210 

160

110 

76 

60 

52 

45

40 

60 

110 

240 

220

200 

400 

300 

174 

141

Dec.

126 

166 

133 

114 

104

90 

81 

70 

56 

47

42 

41 

40 

39 

49

56 

52 

47 

43 

41

84 

120 

145 

135 

130

125 

300 

370 

270 

200 

150

Jan.

120 

100 

90 

75 

68

70 

62 

56 

50 

46

42 

38 

35 

33

32

31 

30 

30 

30 

55

110 

190 

150 

110 

94

82 

72 

62 

54 

49 

44

Feb.

41 

39 

38 

36 

37

39

41 

43 

40 

37

36 

35 

55 

59 

84

101 

115 

101 

95 

84

90 

176 

263 

488 

356

277 

199 

142

i/_.,*i_ SecondMonth foot-days

Ootc 

Nove 

Dece

Ca

Jami 

Febi 

Hare 

Apri 

May 

June 

Julj 

Augu 

Sepl

Vc

lendar year 1949 

ary

2

ember ................... .

2,280 

3,228 

3,466

5,490

2,110 

3,147 

4,310 

3,745 

4,053 

3,844 

1,303 

727 

573.5

iter year 1949-50 .......... 32,786.5

Mar.

117 

107 

203 

556 

342

244 

176 

130 

110 

96

87

81 

76 

72 

70

90 

244 

235 

205 

157

121 

105 

94 

86 

78

75 

75 

69 

S4 

68 

77

Maximum

280 

400 

370

400

190 

488 

556 

317 

209 

178 

84 

52 

61

556

Apr.

205 

164 

121 

101 

96

99 

90 

86 

84 

83

81 

110 

150 

122 

205

317 

261 

178 

138 

130

128 

118 

103 

94 

87

80 

83 

79 

76 

76

May

84 

92

89 

98 

120

110 

99 

91 

87 

90

112 

193 

209 

178 

154

138 

164 

143 

122 

114

126 

155 

133 

112 

111

142 

183 

163 

157

152 

132

June

132 

138 

157 

178 

157

126 

118 

140 

133 

136

148

143 

121 

111 

107

122 

145 

122 

118 

118

107 

143 

172 

143 

118

104 

99 

99 

98 

91

1950

July

84 

76 

71 

67 

62

58

54 

52 

52 

47

44 

42 

40 

38 

36

35 

33

32 

44 

35

32 

31 

29 

28 

27

26 

25 

29 

27 

24 

23

Per 

Minimum Mean square 

mile

12.5 73.5 6.93 

26 108 10.2 

39 112 10.6

11.5 69,8 6.58

30 68.1 6.42 

35 112 10.6 

64 139 13.1 

76 125 11.8 

84 131 12.4 

91 128 12.1 

23 42.0 3.96 

17 23.5 2.22 

12 19.1 1.80

12 89.8 8.47

Aug.

23 

22 

22 

21 

2O

20 

21 

20 

19 

18.5

18 

18 

17.5 

17 

52

42 

32 

28 

26 

24

23 

23 

26 

29 

24

22 

22 

20 

19.5 

19 

18.5

Sept

18.5 

18 

17.5 

17.5 

16.5

16 

15.5 

15.5 

15.5 

15

15 

14.5 

14.5 

14 

14

14 

13.5 

13 

13 

13

12.5 

12.5 

12 

16.5 

25

61 

36 

36 

31

27

Runoff

Inches

8

11 

12

89

7 

11 

15 

13 

14 

13 

4 

2 

2

115

Peak discharge (base, 300 sec. -ft.). About Oct. 28 (time and discharge unknown)!

.00 

.33 

.16

.44

.40 

.04 

.12 

.14 

.22 

.49 

.57 

.55 

.01

.03

Acre-feet

4,520 

6,400 

6,870

50,550

4,190 

6,240 

8,550 

7,430 

8,040 

7,620 

2,580 

1,440 

1,140

65,020

about Nov. 27

(time unknown) 440 sec.-ft.; about Dec. 28 (time and discharge unknown); Feb. 24 (6 a.m.) 610 sec.- 

ft.j Mar. 4 (7 a.m.) 688 sec.-ft.; Mar. 17 (5:30 p.m.) 317 sec.-ft.; Apr. 16 (1 a.m.) 342 sec.-ft.

Note. No gage-height record Oct. 1-4, Oct. 17 to Nov. 6, Nov. 14-28, Dec. 8 to Feb. 12s discharge 

computed on basis of recorded range in stage and records for nearby streams. Shifting-control 

method used Feb. 13 to Mar. 3.
102 DUWAMISH RIVER BASIN

Bear Creek near Eagle Gorge, Wash.

Location.--Water-stage recorder, lat. 47°17'00", long. 121°48'10", in NWi sec. 28, T. 21

 W., H. 8 E., a quarter of a mile upstream from mouth and 2j miles northwest of Eagle 

Gorge.

Drainage area. 4.1 square miles.

Records available. September 1946 to September 1950.

Extremes. Maximum discharge during year, 384 second-feet Mar. 4 (gage height, 2.82 feet),

 From~rating curve extended above 71 second-feet on basis of slope-area determination 

of flood cf Feb. 11, 1951, at gage height of 4.0 feet; minimum, 2.0 second-feet 

Sept. 21-24.

1946-50: Maximum discharge, 605 second-feet Dec. 10 or 11, 1946 (gage height, 4.00 

feet, from recorded range in stage, site then in use), from rating curve extended above 

50 second-feet by logarithmic plotting; minimum recorded, 0.1 second-foot Sept. 27-29, 

Oct. 3 and about Oct. 18, 1946.

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

wo diversion or regulation.

Hating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Feb. 27 to Mar. 4)

Oct. 1 to Mar. Mar. 5 to Sept. 30

0.5 2.1 1.3 50 0.5 1.4 1.3 42 

.7 7.6 1.6 86 .7 5.1 1.5 66 

.9 17.5 1.9 132 .9 12.5 1.7 97 

1.1 31 2.3 214- 1.1 24

Discharge, in seeond-f eet , water year October 1949 to September 1951

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.9

2.1 

2.7 

18 

43

27 

22 

16.5 

34 

36

72 

57 

39 

28 

33

32 

27 

22 

18 

15.5

13.5 

11.5 

10.5 

9.5 

8.4

9.5 

10.5 

90 

52 

34 

25

Nov.

18.5 

15.5 

12.5

11 

9.6

8.6 

8.4 

8.8 

S.O 

8.0

21 

66 

69 

72 

51

34 

25 

20 

16.5 

13.5

12 

20 

34

73

72

59

129 

86 

71 

52

Dec.

42 

72 

52 

36 

31

28 

23 

19.5 

17.5 

14.5

13 

12.5 

12.5 

12 

19.5

20 

18.5 

15.5 

13 

13.5

23 

80 

81 

67 

57

53 

127 

127 

76 

53 

43

Jan.

33 

27 

24 

22

20

16.5 

14 

13 

11.5

11

10.5 

9.5 

8.8 

8.4 

8

7.8 

7.6 

7.6 

12 

73

72 

76 

60 

40 

30

25

20 

18 

15 

14 

12.5

Feb.

11.5 

10.5

10 

10.5

11

11 

10.5 

10 

10 

9.5

9.2

9.2 

10 

11 

25

45 

47 

46 

45 

40

45 

70 

80 

200 

160

100 

58 

58

Month SecondMonth foot-daysOoto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Hay 

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ary

-1-

h.... ..................... i

1 ......................... i

ember .....................

832.9 

, 105 . 1 

,282.5

,283.7

728.8 

,173.0 

,497.5 

,445 

,297 

752.5 

162.0 

156.4 

147.7

ter year 1949-50 .......... 10,581.4

Mar.

47 

44 

87 

212 

92

80 

61 

44 

35 

29

24 

22 

19 

18.5 

20

38 

95

75 

75 

60

45 

40 

33 

27 

24

22

25 

23 

20 

27 

34

Maximum

90 

129 

127

195

76 

200 

212 

85 

65 

40 

10.5 

19 

31

212

Apr.

78 

70 

54 

44 

44

45 

39

36 

36 

35

37 

58 

70 

56 

80

85 

76 

55 

52 

51

48 

42 

35 

31 

28

26 

30 

32 

30 

30

May

33

35 

32 

40 

57

50 

40 

34 

32 

34

45 

65 

63 

51 

45

41 

51 

48 

39 

35

37 

41 

35 

31 

32

42 

50 

43 

41 

39 

34

June

34 

35 

38

40 

35

27 

27 

32 

31 

30

31 

28 

28 

22 

19

20 

20 

18.5 

17 

15.5

14 

24 

32 

28 

25

22 

18.5 

15.5 

13.5 

12

P 

Minimum Mean squ 

mi

July

10.5 

9.5 

8.7 

7.9 

7.2

6.9 

5.5 

5.3 

6.3 

6.0

5.4

4.8 

4.6 

4.5 

4.4

4.4 

4.1 

3.9 

5.7 

4.6

3.9 

3.7 

3.5 

3.5 

3.5

3.3 

3.3 

4.4 

3.7 

3.5 

3.3

Aug.

3.0 

2.8 

2.8 

2.8

2.7

2.7 

3.5 

2.7 

2.7 

2.5

2.3 

2.3 

2.3 

2.2 

19

16 

9.5

7.2 

6,0 

5.4

4.8 

4.8 

5.7 

8.3 

5.7

5.1 

4.8 

4.5 

4.4 

4.1 

3.7

Sept.

3.7 

3.5 

3.5 

3.5 

3.3

3.0 

2.8 

2.8 

2.8 

2.8

2.7 

2.7 

2.7 

2.5 

2.5

2.5 

2.3 

2.3 

2.2 

2.2

2.2

2.0 

2.0 

2.8 

6.9

31 

14 

13.5 

9.5 

7.5

er Runoff

le Incr es

2.7 26.9 6.56 7.56 

8.0 35.8 8.98 10.02 

12 41.4 10.1 11,63

1.7 22.7 5.54 75.13

7.6 23.5 5.73 6.61 

9.2 41.9 10.2 10.54 

18.5 48.3 11.8 13.58 

26 48.2 11.8 13.12 

31 41.8 10.2 11.75 

12 25.1 6.12 6.83 

3.3 5.23 1.28 1.47 

2.2 5.05 1.23 1.42 

2.0 4.92 1.20 1.34

2.0 29.0 7.07 95.98

Acre feet

1,650 

2,190 

2,540

16,420

1,450 

2,330 

2,970 

2,870 

2,570 

1,490 

321 

310 

293

20,980

Peak discharge (base, 180 sec. -ft.) . Nov. 27 (3 a.m.) 192 sec. -ft.! Dec. 27 (5:30, 6;30, 8, 9':30

p.ra.) 203 see.-ft.; about Feb.

Kote. No gage-height Jan. 14-19, Jan. 25 to Feb. 26} discharge computed on basis of I discharge 

measurement, recorded range in stage, weather records, and records for nearby streams.
DUWAMISH RIVER BASIN 103

Newaukum Creek, near Black Diamond, Wash.

Location.--Water-stage recorder, lat. 47°16'30", long. 122°03'30", in SW£ sei. 28, T. 21 

M., K. 6 E., three-quarters of a mile upstream from mouth and Z\ miles so'ithwest of 

Black Diamond.

Drainage area. 24.4 square miles.

Records available.--July 1944 to November 1950 (discontinued).

Extremes.--Maximum discharge during period October 1949 to November 1950, 1,320 seeondfeet about Mar, 4 (gage height, 3.35 feet, from high-water mark in well), from rating 

curve extended above 600 second-feet; minimum, 13.5 second-feet Oct. 1, 2, 1949.

1944-50: Maximum discharge, 1,820 second-feet about Feb. 17, 1949 (gage height, 

3.54 feet, from recorded range in stage), from rating curve extended above 600 secondfeet; minimum, 11 second-feet Oct. 11, 12. 1944.

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

Many small diversions above station for irrigation and domestic use. No regulation. 

Discharge, In second-feet, 1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17'«!

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

14.5

13.5

14

23

25

18

19

18

19

19

25

23

20

18.5

19

19

19

18.5

18

18

18

18

18

18

18

18.5

21

74

33

25

Nov.

21

19

20

18

18.5

18.5

18

18.5

18.5

20

23

84

67

76

48

39

32

30

29

27

26

33

54

72

80

70

390

200

126

126

21 | -

Dec.

92

143

94

72

69

67

60

54

55

51

45

57

64

60

64

62

70

65

57

67

102

107

220

173

173

146

532

498

290

157

124

Jan.

92

85

80

77

75

120

125

110

100

110

90

80

70

65

60

55

52

50

100

700

850

950

600

400

250

150

104

95

85

82

80

Feb.

78

75

75

90

121

192

157

218

126

116

116

124

210

147

184

206

180

129

124

99

111

135

252

300

310

250

165

135

_

_

-

Mar

125

120

450

1,OOO

650

220

160

135

121

121

102

92

90

82

75

135

490

390

318

199

163

214

188

153

126

118

140

118

104

129

124

Apr.

177

147

135

108

92

92

86

86

84

80

75

106

118

92

163

276

184

121

97

86

80

84

80

75

71

71

80

73

64

60

-

May

67

73

66

73

82

97

75

67

64

59

57

54

54

52

51

51

55

57

51

49

48

47

44

43

42

42

42

42

42

39

38

June

37

36

35

34

34

37

43

42

37

35

35

36

35

35

July

31

30

28

28

28

28

28

28

32

28

28

27

26

26

34 | 26

33

33

33

32

32

33

35

37

40

38

36

33

33

32

31

-

26

25

24

24

24

23

23

23

23

23

23

23

25

23

23

23

Aug.

22

21

22

21

21

22

23

23

21

20

20

20

20

21

28

27

23

21

21

20

19.5

20

22

22

20

19.5

19.5

19.5

18.5

18.5

18.5

Sept.

18.5

18.5

18.5

18.5

18.5

18.5

18.5

18.5

18

18

18

18.5

18.5

18

18

18

18

18

18

18

17.5

17.5

17.5

19.5

26

31

22

22

20

20

-

Peak discharge (base, 55o sec.-ft.). Nov. 27 (6 a.m.) 590 sec.-ft.; Dec. 23 (10 p.m.) 358 see.- 

ft.,- Dec. 27 (7 p!m.) l,16o sec.-ft.; about Jan. 22 (time unknown) 1,240 sec.-ft.; about Mar. 4 

(time unknown) l,32o sec.-ft.; Mar. 17 (8:30 a.m.) 636 sec.-ft.; Apr. 15 (9 p.m.) 5O6 sec.-ft.

Note. No gage-height record Jan. 2-26, Jan. 29 to Pet). 4, Feb. 24 to Mar. 6; discharge computed 

on basis of records for nearby streams.

1950

Day

1

2

3

4

5

6

7

8

Oct.

19.5

18.5

18

20

31

25

26

28

Nov.

59

62

52

_

_

-

_

-

Day

9

10

11

12

13

14

15

16

Oct.

27

73

46

32

28

32

31

27

Nov.

_

_

_

_

_

_

_

-

Day

17

18

19

20

21

22

23

24

Oct.

27

38

82

62

42

36

32

31

Nov.

_

_

_

_

_

-

-

Day

25

26

27

28

29

30

31

Oct.

36

44

54

62

66

60

52

Nov.

.

-

_

.

-

-

_

Monthly discharge, in second-feet, 1949-50

Month

Hay

October 1950 .................

Secondfoot-days

663.5 

1,822 

3,890

20,827.5

5,942 

4,425 

6,652 

3,143 

1,723 

1,056 

800 

654. S 

578

31,349

1,206

Maximum

74 

390 

532

1,000

950 

310 

l.OOO 

276 

97 

43 

32 

28 

31

1,000

82

Minimum

13.5 

18 

45

13.5

50 

75 

75 

60 

38 

31 

23 

18.5 

17.5

13.5

18

Mean

21.4 

60.7 

125

57.1

192 

158 

215 

105 

55.6 

35.2 

25.8 

21.1 

19.3

85.9

38.9

Per 

square 

mile

0.877 

2.49 

5.12

2.34

7.87 

6.48 

8.81 

4.30 

2.28 

1.44 

1.06 

.865 

.791

3.52

1.59

Runoff

Incl es

1.01 

2.78 

5.93

31.76

9.06 

6.74 

1C. 14 

1.79 

?.63 

1.61 

1.22 

1.00 

.88

47.79

1.84

Acre-feet

1,320 

3,610 

7,720

41,310

11,790 

8,780 

13,190 

6,230 

3,420 

2,O9O 

1,590 

1,300 

1,150

62,190

2,390

238382 O - 53 - 8
104 DUWAMISH RIVER BASIN

Big Soos Creek near Auburn, Wash.

Location.--Water-stage recorder, lat. 47°19'00", long. 122°08'40", in SE£ sec. 10, T. 21 

 N., H 5 E., three-quarters of a mile downstream from Covington Creek and 4 miles northeast of Auburn.

Drainage area.--53.9 square miles.

Records available. August 1944 to September 1950.

Extremes.--Maximum discharge during year, 869 second-feet Mar. 5 (gage height, 4.11 feet); 

minimum, 27 second-feet Sept. 2, 3.

1944-50: Maximum discharge, that of Mar. 5, 1950; minimum, 22 second-feet Aug. 30, 

Sept. 9, Oct. 21, 1944.

Remarks. Records fair. Several small diversions for farm use above station. City of 

Seattle regulates flow of Little Soos Creek, a tributary.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 19- 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

29 

28 

28 

57 

42

37 

46

38 

35 

34

37 

34 

31 

31 

34

34 

32 

31 

30 

30

30 

30 

30 

29

30

31 

35 

97 

65 

44 

38

Nov.

35 

24 

34

34 

32

34

32 

34 

34 

36

41 

94

106 

88 

65

57 

52 

46 

46 

44

42 

51 

70 

P8 

80

92 

155 

141 

126 

133

Dec.

124 

139 

133

122 

116

113 

105 

95 

90 

85

80 

78 

90 

90 

95

100 

110 

105 

99 

99

109 

111 

137 

193 

190

193 

225 

335 

335 

311 

299

Jan.

274

253 

222 

215

203

239 

299 

284

264 

264

270 

239 

206 

195 

185

176 

171 

160 

187 

355

580 

711 

672 

540 

430

350 

310 

280 

250 

230 

215

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ember ........ ............

ter year 1949-50 ...... ....

Feb.

200 

190 

196 

199

209

250 

264 

339 

367 

339

331 

327 

391 

387 

391

407 

395 

359

343 

323

315 

299 

315 

395 

491

550 

518 

460

Secondfoot-days

1,137 

1,936 

4,506

38,171

9,229 

9,550 

13,359 

6,826 

3,679 

1,997 

1,335 

1,048 

925

55,527

Mar.

427 

443 

431 

733 

833

689 

590 

518 

473 

439

399 

355 

331 

299 

278

288 

455 

478 

536 

478

439 

431 

403 

391 

371

347 

343 

315 

288 

284 

274

Maximum

97 

155 

335

622

711 

550 

833 

288 

179 

83 

52 

52 

58

833

Apr.

284

270 

264 

250 

242

242 

232 

225 

222 

212

203 

222 

239 

215 

228

281 

288 

264

250 

236

225 

219 

212 

199 

193

187 

196

185 

173 

168

May

176 

179

160 

158 

153

151 

146 

141 

137 

130

128 

124 

118 

115

113

111 

113 

113 

109 

106

102 

100 

97 

94 

90

88 

90 

87 

87 

83 

80

Minimum

23 

32 

78

25

160 

190 

274 

168 

80 

54 

35 

28 

28

28

June

78 

75 

73 

71 

71

73 

83 

80 

75 

75

71

66 

66 

66 

66

63 

62 

62 

60 

62

62 

63 

65 

63 

62

58 

57 

58 

55 

54

Mean

36.7 

64. E 

145

105

S98 

3*41 

431 

228 

119 

66.6 

43.1 

33.8 

30.8

152

July

51 

48 

48 

49

48 

46 

46 

51 

49

49 

48 

45 

44 

44

44 

42 

42

41 

41

39 

38 

37 

37 

37

36 

36 

39 

37 

36 

35

Per 

square 

mile

0.681 

1.20 

2.69

1.95

5.53 

6.33 

8.00 

4.23 

2.21 

1.24 

.800 

.627 

.571

2.82

Aug.

34 

34 

34 

34 

34

34 

34 

34 

32

31

30 

30 

30 

31 

52

48 

35 

34 

33 

34

34 

34 

38 

37 

34

33 

31 

30 

29 

28 

28

Sept.

28 

28 

28 

29 

28

28 

28 

28 

28 

28

29 

28 

28 

28 

28

29

29 

29

28 

28

28 

28 

28 

34

46

58 

39

34 

33 

32

Runoff

Inches

0.78 

1.34 

3.11

26.34

6.37

6.59 

9.22 

4.71 

2.54 

1.38 

.92 

.72 

.64

39.32

Acre-feet

2,260 

3,840 

8,940

75,730

18,310 

18,940

26,500 

13,540 

7,300 

3,960 

2,650 

2,080 

1,830

110,200

Peak discharge (base, 400 sec. -ft. .--Jan. 22 (8 p.m.) 744 sec. -ft.: Feb. 16 (3 p.m.) 415 seo.-

ft.; Feb. 26 (8

Noce.--No gage-height record Dec. 7-18, Jan. 14, 15, Jan. 25 to Feb. 2; discha 

basis of records for nearby streams.
LAKE WASHINGTON BASIN 105

North Fork Cedar River near Lester, Wash.

Location.--Water-stage recorder, lat. 47°19 I 00", long. 121°29'30", In 85 sec. 11, T. 21 

N., K. 10 E., at falls, l| miles upstream from confluence with South Fork and 7| miles 

north of Lester.

Drainage area.--8.8 square miles.

Records available. October 1944 to September 1950.

Extremes. Maximum discharge during year, 960 second-feet Nov. 27 (gage height, 6.92 feet); 

minimum, 11.5 second-feet Oct. 2, 3.

1944-50: Maximum discharge, 1,600 second-feet Jan. 7, 1945 (gage height, 7.37 feet), 

from rating curve extended above 200 second-feet; minimum, 8.2 second-fee*-, Oct. 18, 19, 

1946 (gage height, 1.53 feet).

Remarks.--Records good except those for periods of shifting control, which a^e fair, and 

those for periods of no gage-height record, which are poor. No diversion or regulation.

Rating table, water year 1949-5O, except periods of shifting 

(gage height, in feet, and discharge, in second-feet)

1.6 10.5 2.3 26 3.3 86 5.0 347 

1.7 12 2.5 34 3.6 117 5.5 470 

1.9 15.5 2.7 44 4.0 168 6.0 62O 

2.1 20 3.0 62 4.5 247 6.5 800

Discharge, in second feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

11.5 

11.5 

20 

29

24 

20 

18 

107 

99

177 

142 

101 

76 

78

63 

53 

46 

40 

35

32 

30 

27 

26 

25

25 

30 

323 

130 

95 

73

Nov.

61 

50 

44 

38 

34

30 

28 

27 

26 

24

32 

66 

140 

142 

106

81 

67 

56 

48 

42

38 

45 

55 

231

174

291 

660 

294 

162 

118

Dec.

128 

154 

122 

98 

79

64 

55 

48 

46 

40

36 

33 

30 

28

26

25 

24 

23 

21 

21

21 

30 

35 

34 

31

29

72 

151 

109 

81 

63

Jan.

51 

45 

40 

37 

34

32 

31 

28 

25 

24

23 

21 

20 

18 

17

17 

16 

16 

25 

123

114 

90 

75 

62 

55

50 

46 

42 

38 

35 

33

Feb.

31 

28 

26 

25 

25

23 

21 

20 

19 

18

17.5 

17 

17.5 

18.5 

24

28 

28 

28 

28

27

27 

30 

32 

82 

94

86 

71 

60

Month SecondMonth foot-days

Octc 

Nove 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

Hay 

June 

Juls 

Augu 

Sept

Wa

lendar year 1949 

a.ry 1

ember .....................

,979 

,210 

,757

,265

,283 

951.5 

,O30 

,644 

,076 

,337 

,457 

845.5 

545.5

ter year 1949-50 .......... 31,115.5

Mar.

52 

48 

88 

274 

185

136 

106 

86 

70 

59

51 

46 

43 

40 

36

38 

62 

66 

63 

58

53 

48 

46 

42 

40

38 

34 

32 

31 

29 

30

Maximum

323 

660 

154

660

123 

94 

274 

104 

274 

420 

336 

44 

38

660

Apr.

42 

41 

4O 

39 

38

38 

36 

35 

34 

32

32 

40 

46 

46 

56

79 

104 

97 

85 

83

85 

82 

74 

66 

58

53 

49 

46 

44 

44

May

44 

46 

46 

46 

46

46 

44 

44 

44

51

82 

160 

230 

213 

191

178 

172 

152 

132 

121

137 

181 

158 

143 

146

190 

274 

230 

181 

174 

174

June

191 

222 

265 

347 

314

203 

165 

168 

182 

247

294 

304 

256 

230 

238

336 

395 

347 

382 

420

358 

284 

314 

222 

179

178 

230 

314 

382 

370

Minimum Mean

11.5 63.8 

24 107 

21 56.7

11.5 80.2

16 41.4 

17 34.0 

29 65.5 

32 54.8 

44 131 

165 278 

46 144 

19 27.3 

13 18.2

11.5 85.2

Peak discharge (base, 400 sec. -ft.) .--Oct. 28 (4:30 a.m.) 655 sec. -ft.

P 

sqi 

m

July

336

265 

256 

265 

256

230 

208 

168 

164 

145

129 

132 

148 

143 

130

119 

121 

121 

143 

121

114 

109 

105 

97 

83

72 

62 

58 

61 

50 

46

Aug.

44 

42 

38 

34 

31

29 

27 

26 

25 

24

23 

22 

20 

20 

42

42 

30 

28 

25 

24

23 

24 

30 

28 

24

22 

21 

20 

19.5 

19 

19

Sept.

19 

19 

18.5 

18 

17.5

17 

16.5 

16 

15.5 

15

15 

14.5 

14.5 

14 

14

14 

13.5 

13.5 

13.5 

13.5

13.5 

13 

13 

15.5 

19.5

37 

38 

34 

26 

24

er Runoff

1B Inches Acre feet

7.25 8.36 3,930 

12.2 13.57 6,370 

6.44 7.43 3,480

9.11 1?3.69 58,040

4.70 5.42 2,540 

3.86 4.02 1,890 

7.44 8.58 4,030 

6.23 6.95 3,260 

14.9 17.23 8,080 

31.6 35.23 16,540 

16.4 18.84 8,840 

3.10 3.57 1,680 

2.07 2.31 1,080

9.68 131.51 61,720

 Nov. 27 (2:30 a.m.) 960

see.-ft.

Note. No gage-height record Jan. 4-19, Jan. 25 to Feb. 7; discharge computed on basis of weather 

records and records for nearby streams. Shifting-control method used June 24 to Sept. 30.
106 LAKE WASHINGTON BASIN

Cedar River below Bear Creek, near Cedar Falls, Wash

Location. Water-stage recorder, lat. 4V°20'40", long. 121°33'00", in SE-fS^ sec. 32, T. 

22 M., R. 10 E., -500 feet downstream from Bear Creek and 12 miles southeast of Cedar 

Falls.

Drainage area.--25.4 square miles.

Records available.--October 1945 to September 1950.

Extremes. Maximum discharge during year, 1,510 second-feet Nov. 2V (gage height, 6.00 

feet); minimum, 30 second-feet Oct. 2, 3 (gage height, 2.82 feet).

1945-50: Maximum discharge, 1,940 second-feet Dec. 11, 1946 (gage height, 6.32 

feet); minimum, 18.5 second-feet Feb. 9, 1949 (gage height, 2.66 feet) probably caused 

by temporary storage behind ice jam upstream).

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

which are poor. No diversion or regulation.

Rating table, water year 1949-50, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Mar. 4 to May 13)

2.8 28 3.7 185 5.0 74o 

3.0 47 4.0 282 5.4 1,010 

3.2 73 4.3 393 5.8 1,330 

3.4 107 4.6 523

Discharge, In second leet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

32 

31 

30 

52 

83

69 

62 

55 

238 

279

422 

377 

251 

191 

182

150

129 

111 

100 

91

84 

78 

72 

69 

66

66 

70 

614 

339 

235 

179

Nov.

147 

125 

109 

98 

89

81 

76 

73 

70 

66

79 

134 

218 

310 

251

194 

164 

139 

122 

109

100 

114

137 

494 

447

593

1,250 

891 

562 

426

Dec.

354 

477 

366 

292 

245

197 

170 

*147 

139 

122

109 

103 

96 

91 

89

84 

83 

78 

73 

72

73 

104 

139 

134 

125

116 

299 

652 

405 

289 

225

Jan.

185 

155 

134 

118 

111

103 

94 

91 

87 

84

79 

76 

b73 

b74 

b72

b68 

65 

65 

93 

191

268 

292 

238 

194 

167

a!50 

a!30 

a!20 

allO 

102 

94

Month f*<

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber .......................

mber ......................

lendar year 194S

1 .................... ....

st . . .....................

ember ............ ........

Feb.

87 

*83 

b80 

b75 

b72

70 

67 

66 

63 

62

60 

59 

60 

63 

83

96 

94 

96 

96 

93

91 

107 

122 

385 

405

328 

262 

212

ond-

-days

4,807 

7,668 

5,951

72,336

3,883 

3,437 

6,049 

5,074 

11,213 

18,248 

8,730 

2,028 

1,237

ter year 1949-50 .......... 78,325

Mar.

182 

161 

296 

800 

577

409 

310 

248 

206 

173

147 

129 

118 

109 

102

111 

188 

206 

188 

170

167 

142 

127 

118 

*109

103 

100

93 

87 

86 

87

Maximum

614 

1,250 

652

1,250

292 

405 

800

321 

646 

863 

646 

101 

69

1,250

Apr.

139 

129 

116 

109 

114

114 

109 

105 

102 

100

103 

137 

155 

152 

212

279 

321 

292 

268 

262

258 

241 

212 

185 

170

150 

142 

132 

132 

134

May

142 

150 

147 

152 

167

152

145 

147 

155 

191

265 

460 

603 

562 

518

491 

477 

422 

362 

343

385 

468 

430 

381 

385

486 

646 

562 

491 

468 

460

Minimum

30 

66 

72

28

65 

59 

86 

100 

142 

414 

100 

47 

32

30

June

486 

533 

619 

758 

704

509

443 

414 

434 

518

619 

658 

582 

523 

514

663 

842 

746 

782 

863

764 

646 

692 

528

443

422 

486 

619 

734 

704

Mean

155

256 

192

198

125

123 

195 

169 

362 

608 

282 

65.4 

41.2

215

July

646 

538 

509 

509 

491

456 

405 

350 

336 

292

258

258 

286 

279 

248

228 

225

232 

279 

228

215 

206 

200

182 

158

142 

125 

120 

122 

107 

100

Per 

square 

mile

6.10 

10.1 

7.56

7.80

4.92 

4.84 

7.68 

6.65 

14.3 

23.9 

11.1 

2.57 

1.62

8.46

Aug.

96 

91 

86 

79 

75

70 

67 

65 

62 

60

58 

55 

54 

53 

101

86 

69 

63 

62 

59

55

54 

69 

69 

59

57 

55 

52 

51 

49 

47

Sept.

46 

45 

44 

44 

43

41 

40 

39 

39

38

37 

36 

36 

36 

35

34 

34 

33 '33 

32

32 

32 

32 

34 

43

69 

69 

62 

52 

47

Runoff

Inches

7.04 

11.23 

8.71

105.90

5.69 

5.03 

8.86 

7.43 

16.42 

26.72 

12.78 

2.97 

1.81

114.69

Peak discharge (base, 1,000 sec. -ft. ) .--Oct. 28 (8:30 a.m.) 1,010 sec. -ft.; Nov. 27 (4

Acre-feet

9,530 

15,210 

11,800

143,500

7,700 

6,820 

12,000 

10,060 

22,240 

36,190 

17,320 

4,020 

2,450

155,300

a.m. )

1,510 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for nearby 

streams.

b Stage-discharge relation affected by Ice.
LAKE WASHINGTON BASIN 107

Cedar River near Cedar Palls, Wash.

Location. Water-stage recorder, lat. 47°22>20", long. 121°37'30", in SE^SW^ sec. 23, T. 

22 N., R. 9 E., 2 miles upstream from Cedar Lake and 8 miles southeast of Cedar Palls.

Drainage area. 41.8 square miles.

Records available.--October 1945 to September 1950.

Extremes.--Maximum discharge during year, 2,460 second-feet Nov. 27 (gage height, 7.63 

 feet); minimum, 38 second-feet Oct. 3 (gage height, 2.06 feet).

1945-50: Maximum discharge, 3,840 second-feet Dec. 14, 1946 (gage height, 9.81 

feet); minimum, 34 second-feet Sept. 29, Oct. 18, 19, 1946.

Remarks. Records good except those for periods of ice effect or backwater from Cedar 

Lake, which are fair. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

40 

40 

39 

68 

129

124

106 

92 

308 

478

590 

570 

394 

297 

278

235 

203 

184 

164 

149

135 

124 

118 

108 

102

100 

110 

884 

530 

366 

284

Nov.

232 

200 

176 

159 

144

133 

124 

122 

116 

110

135 

235 

398 

498 

401

313 

256 

223 

195 

171

154 

171 

220 

642

632

790 

2,040 

1,320 

745 

550

Dec.

490 

678 

530 

418 

353

294 

*253 

220 

212

187

171 

161 

152 

142 

144

138 

135 

129 

120 

116

127 

195 

287 

303 

259

241

537 

1,060 

660 

520 

470

Jan. .

400 

350 

280 

220 

200

180 

165 

155 

144

138

129 

124 

100

b97 

b97

102 

102 

97 

90 

223

518 

610 

494 

363 

291

262 

b210 

b!90 

b!70 

b!60 

D145

Month

Octc 

Hove 

Dece

Ce

Jami 

Febi 

Hare 

Apr! 

May 

June 

Julj 

Augu 

Sept

Ha

mber ......................

lendar year 1949 ..... ...

ary

ember .....................

ter year 1949-50 ..........

Feb.

b!35 

b!30 

*127 

127 

131

127 

120 

116 

108 

102

98 

97 

114 

124 

198

259 

238 

226 

220 

198

195 

250

300 

835 

812

655 

470

370

Secondfoot-days

7,349 

11,605 

9,702

107,166

6,806 

6,882 

13,005 

10,875 

17,308 

23,380 

10,237 

3,174 

2,051

122,374

Mar.

300 

290 

450 

1,550 

1,100

980 

820 

700 

580 

500

430 

360 

300 

240 

230

230 

350 

440 

410 

330

330 

330 

280 

230

215

210 

190 

165 

150 

155 

160

Maximum

884 

2,040 

1,060

2,040

610 

835 

1,550 

680 

880 

1,040 

740 

152 

135

2,040

Apr.

280 

290 

270 

250 

240

240 

220 

215 

210 

190

190 

260 

310 

310 

430

580 

680 

640 

610 

590

570 

550 

510 

440 

390

330 

290 

270 

260 

260

May

280 

300 

291 

291 

310

287 

272 

297 

278 

320

432 

640 

780 

770 

760

760 

780 

720 

660 

600

640 

720 

620 

580

560

720 

880 

780 

700 

660 

620

Minimum

39 

110 

116

37

90 

97 

150 

190 

272 

580 

144 

77 

48

39

June

640 

670 

740 

920 

960

700 

640 

590 

580 

640

770 

810 

740 

680 

680

820 

1,020 

980 

960 

1,040

970 

1,040 

920 

760 

650

580 

600 

700 

800 

780

Mean

237 

387 

313

294

220 

246 

420 

362 

558 

779 

330 

102 

68.4

335

July

740 

640 

600 

580 

540

490 

440 

370 

370 

330

303 

297 

336 

333 

303

278 

269 

272 

320 

269

250 

241 

232 

220 

203

192

176 

171 

174 

154 

144

Per 

square 

mile

5.67 

9.26 

7.49

7.03

5.26 

5.89 

10.0 

8.66 

13.3 

18.6 

7.89 

2.44 

1.64

8.01

Aug.

140 

131 

124 

118 

110

108 

108 

100 

95 

92

88 

85 

83 

82 

152

149 

114 

102 

95 

92

86 

86 

110 

118 

98

93 

90 

85 

83 

80 

77

Sept.

74 

71 

71 

71 

68

67 

64 

63 

62 

60

59 

58 

58 

56 

56

55 

54 

53 

52

51

50 

48 

48 

54

72

118 

135 

120 

97 

86

Runoff

Inctes

6.54 

10.33 

8.63

95.35

6.06 

6.12 

11.57 

9.68 

15.40 

20.80 

9.11 

2.82 

1.82

108.88

Acre-feet

14,580 

23,020 

19,240

212,600

13,500 

13,650 

25,800 

21,570 

34,330 

46,370 

20,300 

6,300 

4,070

242,700

Peak discharge (base, 1,000 sec. -ft.) .--Oct. 28 (9 a.m.) 1,470 sec. -ft. j Hov. 27 (6:30 a.m.) 2,460

sec.-ft.} Dec. 28 (time and discharge unknown)} Mar. 4 (time and discharge unknown); June 21 (time 

and discharge unknown).

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Hote. Backwater from Cedar Lake Dec. 28 to Jan. 8, Feb. 27 to May 1, May 12 to July 10; discharge 

computed on basis of records for station below Bear Creek, near Cedar Palls.
108 LAKE WASHINGTON BASIN

Cedar River at Cedar Palls, Wash.

Location. Water-stage recorder, lat. 47°25'10", long. 121°47>20", in sec. 4, T. 22 N., 

RTTT~E., three-quarters of a mile downstream from Seattle municipal pover plant at 

Cedar Falls and 3 miles downstream from Cedar Lake.

Drainage area.--86 square miles.

Records available. April 1914 to September 1950.

Average discharge.--36 years, 297 second-feet.

Extremes. Maximum discharge during year, 2.050 second-feet Mar. 6 (gage height, 8.57 

I'eet); minimum, 41 second-feet Sept. 25 (gage height, 5.04 feet).

1914-50: Maximum discharge, 6,290 second-feet Dec. 19, 1917; maximum gage height, 

11.5 feet Dec. 22, 1933; no flow part of Mov. 25, 1917, Aug. 18, 1923; minimum daily, 

2 second-feet Sept. 20, 1922.

Remarks. Records excellent. All artificially diverted water returned to river above 

station. Some regulation by Cedar Lake Reservoir for power.

Cooperation. Gage-height record collected in cooperation with city of Seattle. 

Revisions (water years). V 722: 1930. V 832: Drainage area.

Rating tatle, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

5.1 49 6.0 270 7.2 950 

5.3 81 6.3 400 7.5 1,160 

5.5 121 6.6 560 7.8 1,4OO 

5.7 170 6.9 745 8.2 1,720

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

62 

56 

86 

102 

89

102 

122 

70 

106 

168

159 

189 

135 

106 

184

86 

114 

146 

225 

120

77 

88 

84 

111 

119

114 

108 

121 

482 

422 

231

Nov.

278 

300 

182 

190 

211

245 

128 

220 

166 

127

120 

102 

100 

200 

340

354 

480 

468 

200 

152

366 

412 

294 

94 

111

271 

176 

331 

196 

202

Dec.

196 

230 

178 

112 

260

200 

185 

198 

202 

170

124 

249 

196 

212 

194

194 

178 

326 

372 

457

303 

214 

237 

190 

135

128 

308 

348 

750 

SOS 

674

Jan.

573 

558 

685 

553

437

405 

196 

150 

388 

490

522 

422 

510 

308 

328

518 

560 

576 

749 

390

229 

306 

488 

465 

486

436 

341 

214 

374 

487 

540

Feb.

729 

730 

730 

728 

665

394 

1S4 

168 

158 

190

155 

90 

207 

154 

156

158 

195 

160 

108 

282

246 

152 

298 

324 

188

152 

312 

316

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194C 

ary

ter year 1949-50 .......................

Mar.

326 

364 

520 

1,090 

1,620

1,660 

1,410 

1,220 

998 

904

815 

504 

536 

348 

306

591 

712 

796 

806 

674

404 

339 

558 

476 

210

202 

364 

338 

230 

176 

270

Apr.

210 

232 

376 

278 

486

372 

358 

196 

186 

360

252 

316 

218 

266 

330

670 

760 

877 

807 

872

684 

629 

658 

783 

665

648 

652 

292 

398 

212

Secondfoot-days

4,384 

7,016 

8,528

119,673

13,684 

8,329 

19,767 

14,043 

20,327 

30,264 

14,357 

3,524 

4,356

148,579

May

636 

492 

410 

642 

554

359 

320 

377 

108 

142

158 

287 

412 

582

767

745 

926 

878 

834 

688

664 

846 

809

730 

771

770 

1,030 

1,270 

1,040 

1,050 

1,030

Maximum

482 

480 

808

1,060

749 

730 

1,660 

877 

1,270 

1,500 

1,060 

369 

325

1,660

June

935 

938 

898 

804 

1,220

1,240 

1,120 

866 

870 

862

892 

990

1,000 

806 

792

624 

834 

870 

1,030 

1,100

1,270 

1,400 

1,500 

1,320 

1,110

1,140 

1,010 

1,020 

863

940

July

972 

1.06C 

84C 

82] 

89£

844 

78C 

614 

69C 

682

446 

33] 

376 

448 

298

286 

40C 

413 

390

341

214 

94 

93 

418 

294

274 

172 

292 

96 

161 

311

Aug.

91 

88 

186 

369 

336

304 

109 

116 

74 

66

66 

153 

54 

186 

86

93 

68 

59 

54 

56

88 

57 

69 

80 

80

80 

80 

100 

78 

121 

77

Minimum Mean

56 141 

94 234 

112 275

56 328

150 441 

90 297 

176 638 

186 468 

108 656 

624 1,009 

93 463 

54 114 

66 145

54 407

Sept.

76 

77 

76 

74 

200

192 

240 

244 

124 

109

244 

216 

325 

188 

196

136 

69 

128 

117 

112

122 

156 

68 

66 

148

134 

113 

164 

175 

67

Runoff In 

acre-feet

8,700 

13,920 

16,920

237,400

27,140 

16,520 

39,210 

27,850 

40,320 

60,030 

28,480 

6,990 

8,640

294,700
LAKE WASHINGTON BASIN

Cedar River near Landsberg, Wash.

Location --Water-stage recorder, lat. 47°S3 I 3S", long. 121°S6'SO", in sec. 17, T. 22 M., 

R. 7 E., if miles upstream from Landsberg and intake of Seattle water-smply system, 

7 miles upstream from Maple Valley, and 12 miles downstream from Cedar Lake.

Drainage area.--138 square miles (including that of Rock Creek).

Hecprds available. October 1898 to April 1901, April 1914 to September 1950. July 1895 

to septemcer 1898 at site 2 miles downstream, published as Cedar River at Clifford 

Bridge, near Ravensdale, and March 1901 to April 1912 at site of Seattle water-supply 

intake, published as Cedar River near Ravensdale.

Average discharge. 52 years (1895-1911, 1914-50), 692 second-feet (adjusted for Rock 

ureek diversion April to September 1932, October 1934 to September 1948).

Extremes. Maximum discharge during year, 3,050 second-feet Mar. 5 (gage height, 4.56 

reet); minimum, 243 second-feet Oct. 8 (gage height, 1.00 feet).

1895-98, 1901-12, 1914-50: Maximum discharge observed, 13,600 second-feet Nov. 19, 

1911 (gage height, 9.7 feet, site and datum then in use); minimum observed, 83 secondfeet Sept. 19, 1898.

Remarks. Records excellent except those below 800 second-feet, which are g:>od, and those 

ror period of no gage-height record, which are fair. All diversions except Rock Creek 

returned to river above station. Rock Creek which entered naturally Just above gage 

has been diverted to a point downstream from Seattle municipal water-supily intake to 

lessen danger of pollution. Some regulation by Cedar Lake.

Cooperation. Gage-height record collected in cooperation with city of Seattle.

HevlslonsTwater years). W 313: 1895-98, 1902-9. W 870: Drainage area.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, in second-feet)-

1.0 243 2.0 740 3.5 1,930 

1.2 320 2.3 940 3.9 2.33O 

1.4 412 2.6 1,160 4.3 2,760 

1.6 516 2.9 1,400 

1.8 625 3.2 1,660

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

266 

256 

282 

330 

342

330 

318 

302 

349 

525

512 

462 

433 

348 

422

346 

350 

360 

458 

336

289 

294

290 

306 

311

320 

317 

601 

736 

659 

568

Nov.

466 

498 

420 

391

448

496 

339 

420 

377 

334

340 

433 

482 

552 

576

612 

730 

765 

468 

402

594

662 

596 

486 

490

577 

952 

894 

658 

630

Dec.

604 

723 

617 

520 

654

562 

546 

544 

558 

506

455 

567 

521 

540 

546

546 

526 

561 

753

747

748 

694 

806 

780 

672

645 

1,090 

1,500 

1,540 

1,460 

1,270

Jan.

1,140 

1,090 

1,170 

1,040 

928

913 

696 

626 

821 

848

1,040 

824 

914 

732 

820

882 

944 

954 

962 

1,200

1,120 

1,060 

1,280 

1,070 

al.100

al.OOO 

a900 

a750 

aSOO 

a900 

a950

Feb.

al,000 

al.OOO 

976 

906 

598

7OO 

603 

595 

568 

612

578 

518 

695 

656 

734

766 

791 

724 

664 

786

770 

764 

975 

1,500 

1,280

1,160 

1,110 

1,010

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

977 

991 

1,300 

2,610 

2,660

2,510

2,140 

1,920 

1,680 

1,520

1,380 

1,170 

1,110 

962 

894

1,170 

1,490 

1,580 

1,600 

1,420

1,090 

1,000 

1,180 

1,080 

800

782 

940 

886 

760 

732 

775

Apr.

1

1 

1

1 

1 

1

1 

1 

1 

1 

1

1 

1

Secondfoot-days

12,018 

16,088 

22,801

249,331

29,474 

23,039 

41,109 

31,040 

34,345 

42,160 

24,523 

12,303 

12,279

301,179

919 

863 

965 

854 

050

934

902 

734 

717 

860

766 

841 

798 

800 

957

400 

460 

490 

370 

450

260 

160 

190 

300 

210

100 

190 

852 

896 

752

May

1,060 

998 

903 

1,120 

1,040

870 

811 

908 

595 

589

666 

707 

928 

1,030 

1,190

1,170 

1,320 

1,350 

1,290 

1,130

1,110 

1,2SO 

1,240 

1,170 

1,200

1,140 

1,450 

1,680 

1,540 

1,440 

1,420

Maximum

736 

952

1,540

1,540

1,280 

1,500 

2,660 

1,490 

1,680 

1,910 

1,350 

638 

588

2,660

June

1,350 

1,380 

1,270 

1,210 

1,610

1,640 

1,560 

1,300 

1,310 

1,240

1,300 

1,400 

1,400 

1,260 

1,170

1,070 

1,230 

1,270 

1,420 

1,450

1,660 

1,740 

1,910 

1,710 

1,510

1,510 

1,400 

1,380

ai,soo 

al,2oo

July

al,3oc 

al,S5C 

al,30C 

al,20C 

al,20C

1.17C 

1.12C 

966 

1.03C 

1,010

823 

66? 

68f 

79C 

66f

584 

75f 

718 

720 

66F

56? 

408 

400 

664 

614

578 

458 

644 

405 

465 

612

Aug.

398 

380

471 

638 

617

603 

410 

388 

376 

348

344 

431 

328 

448

472

404 

383 

345 

332

326

356 

328 

337 

362 

349

343 

345

36 6 

346 

388 

341

Minimum ¥f"a\

256 388 

334 536

455 736

256 683

626 951 

518 823 

732 1,326 

717 1,035 

589 1,108 

1,070 1,405 

400 791 

326 397 

317 409

256 825

Sept.

342 

336 

336 

338

440

480 

503 

508 

377 

386

480 

470 

588 

464 

460

396 

328 

384

370 

367

373 

400 

317 

322 

449

438 

396 

430 

462 

339

Runoff in 

acre-feet

23,840 

31,910 

45,230

494,600

58,460 

45,700 

81,540 

61,570 

68,120 

83,620 

48,640 

24,400 

24,360

597,400

a Ho gage-height record; discharge computed on basis of records for nearby stations.
110 LAKE WASHINGTON BASIN

Cedar River at Renton, Wash.

Location. Water-stage recorder, lat. 47°28'40", long. 122°11'50", In NE^SW-J- sec. 17, T. 

2TTT7, R. 5 E. , at Renton, 2 miles upstream from mouth. Datum of gage is 19.13 feet 

above mean sea level, datum of 1929, supplemental adjustment of 1947.

Drainage area. 197 square miles.

Records available. March 1901 to July 1903 (fragmentary), September 1906 to December 1907 

(monttuy afscnarge only), August 1945 to September 1950.

Extremes. Maximum discharge during year, 4,160 second-feet Mar. 4 (gage height, 6.03

reet); minimum not determined, probably occurred during period of no gage-height record 

in August or September.

1901-3, 1906-7, 1945-50: Maximum discharge, 5,650 second-feet Nov. 15, 1906 (gage 

height, 50.0 feet, site and datum then in use); minimum, 97 second-feet Sept. 13, 1945.

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

tnose for periods of no gage-height record, which are poor. Plow partly regulated in 

Cedar Lake Reservoir for operation of power plant. City of Seattle diverts water for 

municipal use.

Discharge, in second-feet, water year October 1949 to September 195C

Day

1 

2 

3 

4 

5

6 

7 

3 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

211 

194 

190 

238 

295

272 

280 

266 

224

437

531 

383 

368 

268 

268

315 

222 

220 

254 

296

216 

189 

192 

184 

198

216 

216 

508 

697 

624 

562

Hov.

384 

418 

358 

298 

329

360 

330 

265 

324 

275

Z66 

448 

538

502 

568

602 

648 

700 

489 

389

442

564 

614 

562 

487

532 

1,230 

1,130 

859 

693

Dec.

644 

757 

665 

586 

564

543

512 

488 

502 

478

437 

443 

470 

456 

495

497 

495 

498 

680 

639

723 

652 

858 

1,140 

864

810 

1,060 

2,150 

2,100 

1,980 

1,620

Jan.

1,440 

1,240 

1,300 

1,190 

1,000

1,070 

960 

848 

862 

964

1,180 

929 

982 

810 

768

881 

947 

958 

996 

1,660

1,830 

2,070 

2,080 

1,630 

1,310

1,190 

1,070 

864 

893 

908 

962

Feb.

1,030 

980 

1,000 

928

741

706

704 

752 

702 

708

721 

715 

892 

904 

999

1,090 

1,100 

977 

948 

924

930 

964 

1,130 

2,040 

2,030

1,960 

1,740 

1,520

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mfiv

June 

July 

Augu 

Sept

Va

lendar year 1949

1..... ..................................

ter year 1S49-50 .......................

Mar.

1,280 

1,180 

1,280 

3,450 

3,520

3,220 

3,080 

2,530 

1,950 

1,930

1,700 

1,550 

1,290 

1,220 

1,040

1,270 

1,700 

1,900 

2,000 

1,970

1,440 

1,330 

1,340 

1,330 

1,080

976 

1,060 

1,010 

376 

830 

842

Apr.

992 

932

1,090 

930 

1,050

1,060 

920 

896 

831 

800

750 

700 

900 

900 

1,100

1,500 

1,550 

1,600 

1,500 

1,350

1,200 

1,100 

1,050 

1,100 

1,100

1,050 

1,OOO 

700 

700 

600

Secondfoot-days

9,544

15,504 

24,806

240,821

35,792 

29,835 

51,174 

30,951 

30,000 

39,589 

19,143 

7,933 

7,168

301,539

May

850 

850 

750 

900 

900

800 

700 

750 

450 

450

500 

550 

700 

850 

1,000

950 

1,100 

1,200 

1,100 

1,000

950 

1,150 

1,150 

1,110 

1,110

1,040 

1,240 

1,620 

1,610 

1,320 

1,350

Maximum

697 

1,230 

2,150

2,550

2,080 

2,040 

3,520 

1,600 

1,620 

1,920 

1,180 

542 

332

3,520

June

1,270 

1,280 

1,160 

1,160 

1,390

1,560 

1,550 

1,260 

1,260 

1,130

1,200 

1,290

1,350 

1,280 

999

1,040 

1,050 

1,140 

1,260 

1,300

1,560 

1,660 

1,920 

1,730 

1,530

1,420 

1,330 

1,250 

1,180 

1,080

"

July

1,160 

1,180 

1,080 

1,010 

1,050

1,000 

980 

816 

826 

836

708 

536 

464 

556 

518

428 

512

556 

575 

530

426 

286 

238 

352 

486

394

300 

417 

296 

247 

380

Minimum

184 

265 

437

184

768 

702 

830 

600 

450 

999 

238 

140 

130

130

Aug.

290

250 

330

354 

442

542 

324

270 

270 

200

190 

260 

140 

260 

376

541 

294 

210 

 170 

180

190 

160 

190 

220 

180

180 

170 

190 

180 

220 

160

Meai

308 

520 

BOO

660

1,155 

1,066 

1,651 

1,032 

968 

1,320 

618 

256 

239

826

Sept.

145 

140 

160 

170 

280

310 

330 

330 

200 

220

320 

286 

312 

332 

264

200 

130 

180 

210 

210

180 

200 

130 

160 

330

328 

248 

306 

305 

252

Huncrf in 

acre-feet

18,930 

30,950 

49,200

477,700

70,990 

59,180 

101,500 

61,390 

59,500 

78,520 

37,970 

15,730 

14,220

598,100
LAKE WASHINGTON BASIN 111

South Fork Cedar River near Lester, Wash.

Location.--Water-stage recorder, lat. 47°18'30", long. 121°31'00", in SE^ sec. IS, T. 21 

N., R. 10 E., about three-quarters of a mile upstream from mouth and 7 miles northwest 

of Lester.

'Drainage area.--6.0 square miles.

Hecoras available. October 1944 to September 1950.

extremes. Maximum discharge during year, 585 second-feet Nov. 27 (gage height, 5.92 feet); 

minimum, 4.6 second-feet Oct. 3.

1944-50: Maximum discharge, 878 second-feet Jan. 7, 1945 (gage height, 4.86 feet), 

from rating curve extended above 125 second-feet; minimum, 2.9 second-feet Oct. 17-19, 

1946 [gage height, 1.25 feet).

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

EEose for periods of ice effect or no gage-height record, or those above 300 secondfeet, which are poor. No diversion or regulation.

Rating tables, water year 1949-50, except periods of Ice effect or shifting control 

(gage height, In feet, and discharge, In second-feet)

3.2

3.4 

3.6 

3.8 17.5

6.6

4.0 

4.3 

4.6 

4.8

2.7

2.8 

3.0 

3.2

3.4

Oct. 28 to Sept. 30

10.5

16

3.6 

3.8 

4.0 

4.3 

4.6

99

150

4.9 219

5.3 335

5.7 485

Discharge, in second-feet, water year Octoher 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.8

4.8

4.8

8.0

18

15

13.5

12

67

90

130

115

73

54

48

41

34

29

26

22

19.5

17.5

16

14.5

14.5

15

16.5

268

140

98

78

Nov.

64

55

49

44

40

37

34

33

32

30

37

52

76

124

108

86

72

62

55

50

45

51

58

182

185

272

473

260

140

89

-

Dec.

75

110

84

61

48

38

34

30

28

*25

26

23

21

19.5

19

17.5

17

16

15

14.5

14.5

21

24

24

24

22

49

178

102

64

48

Jan.

39

32

30

27

26

25

22

20

19

18.5

17

16

15

14

14

13

13

17

40

82

76

67

55

46

40

35

31

28

25

22

20

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April .........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feh.

18

*17

17

17

18

18

17

16

16

15

14

14

14

15

17

19

19

19

19

18

19

20

22

91

95

78

58

46

_

_

-

Secondfoot-days

1,5O7.4

2,895

1,292

18,460.4

944. 5

766

1,316.5

1,001.5

2,356

5, 186

1,926

383. 8

223.4

19,798.1

Mar.

38

34

59

212

139

91

66

53

42

36

31

28

25

24

22

23

32

34

34

33

31

29

28

26

24

23

22

20

19.5

19

19

Maximum

268

473

178

473

82

95

212

66

152

296

173

19

12.5

473

Apr.

23

22

22

22

22

22

21

21

19.5

19.5

19.5

22

24

25

32

45

66

62

57

53

52

52

47

42

38

34

32

30

28

27

-

May

27

27

27

28

28

28

28

28

28

30

40

86

128

121

110

102

102

92

78

70

75

104

99

82

79

110

152

133

110

104

100

Minimum

4.8

30

14.5

4.8

13

14

19

19.5

27

104

19

8 e'.25

4.8

June

110

124

156

209

189

128

105

104

106

133

169

180

152

135

139

212

296

227

258

296

241

192

212

154

119

111

135

178

214

202

-

Mean

48.6

96.5

41.7

50.6

30.5

27.4

42 33*45

7e!o

173

62 . 1

12.4

7.45

54.2

July Aug.

173 19

142 17.5

131 16.5

129 15.5

121 14.5

108 14

92 13.5

79 13

74 12.5

63 12

54 12

53 11.5

57 11

55 11

50 19

45 15

43 13

44 12

50 11.5

43 11

40 10

38 10

37 12

34 11.5

30 10.5

28 10

25 9.6

24 9.1

23 8.9

21 8.7

19 8.5

Per 

square 

mile

8.10

16.1

6.95

8.43

5 .08

4.57 7*08

5*.57

12.7

10 '4

2.07

1.24

9.03

Sept.

8.0

8.0

7.6

7.4

7.1

7.1

7.1

7.1

6.9

6.7

6.7

6.9

7.1

6.5

6.4

6.4

6.5

6.2

6.2

6.2

6.4

6.4

6.4

6.7

7.4

12

12.5

10.5

8.9

8.1

-

Runoff

Irches Acre-feet

9.34 2,990

17.94 5,740

8.01 2,560

114.41 36,610

5.85 1,870

4.75 1,520

8. 16 2, 610

6.21 1, 990

14.60 4,670

32.14 10,290

11.94 3,820

2.38 761

1.38 443

122.70 39,260

Peak d 1 a c h arge f base. 200 sec. -ft.). Oct. 28 (6:30 a.m.) 473 sec. -ft. ; Nov. 27 (2:30 a.m.) 585 

sec.-ft.; Dec. z5 (5 a.m.) 2Z2 sec.-ft.j Mar. 4 (6:30 a.m.) 241 sec.-ft.; June 5 (12:30 a.m.) 214 

sec.-ft. ; June 17 (12:30 a.m.) 346 sec.-ft.j June 29 (9:30 p.m.) 224 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by lee Jan. 13 to Feb. 2. No gage-height record Jan. 25 

to Feb. 23; discharge computed on basis of 1 discharge measurement and records for nearby streams. 

Shifting-control method used Oct. 11-27, Feb. 24 to Apr. 27, June 8 to July 23, Aug. 1-31.
112 LAKE WASHINGTON BASIN

Rex River near Cedar Falls, Wash.

tion. Water-stage recorder, lat. 47°21<10", long. 121°39'50", in NEiKW^ sec. 33, T. 

2 M. , R. 9 E. , 2-5 miles upstream from mouth and Cedar Lake and 7 miles southeast of 

Cedarr Falls. 

Drainage area. --13. 0 square miles. 

Records available. October 1945 to September 1950.

Extremes. --Maximum discharge during year, 1,260 second-feet Nov. 27 (gage height, 5.98 

I'eet ) , from rating curve extended above 680 second-feet; minimum, 11 second-feet Sept. 

21-24 (gage height, 2.67 feet).

1945-50: Maximum discharge recorded, 1,400 second-feet Dec. £8, 1S45 (gage height, 

5.20 feet), from rating curve extended above 680 second-feet, but may have been greater 

Dee. 14, 1946, during period of faulty gage-height record; minimum discharge, 8.1 

second-feet Sept. 29, 30, 1946.

Remarks . --Records good except those for periods of shifting control and tho^e above 1,000 

second-feet, which are fair, and those for periods of ice effect, which are poor. No 

diversion or regulation.

Rating table, water year 1S49-5O, except periods of shifting control or 

(gage height, in feet, and discharge, In second-feet)

2.6 8.6 3.4 83 4.3 333 

2.8 16.5 3.6 123 4.7 501 

3.0 31 3.8 173 5.2 756 

3.2 52 4.0 231

Discharge, in second-feet, water year Octoberl949 to September

Day

1 

2 

3 

4

5

6 

Y 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

15 

13 

12.5 

55 

130

96

l\ 

256 

273

388

257 

163 

112 

130

94 

30 

68 

58 

51

45 

42 

39 

36 

32

38 

49 

471 

207 

135 

100

Nov.

80 

68 

58 

51 

45

42 

39 

39 

36 

35

63 

163 

216 

241 

160

119 

92 

80

66 

58

51 

78 

100 

341 

287

294 

728 

452 

270 

201

Dec.

204 

273 

195 

150 

125

1OO 

85 

*74 

68 

59

53 

52 

52 

48 

52

48

46 

44 

40

40

41 

133 

190 

150 

119

94 

328 

492 

273 

181 

130

Jan

98

78 

69 

63 

59

51 

46 

43 

39 

38

34 

33

31 

30 

29

28 

27 

27 

40 

230

287 

283 

190 

125 

102

100 

76 

62 

56 

52 

49

Feb.

46 

43 

*41 

38 

36

34

32 

31 

29 

28

27 

26 

42 

51 

98

140 

117 

104 

94 

81

83 

140 

179 

539 

388

290 

198 

145

Month SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

. . 3 

4

lendar year 1949 

ary

"uary 3

h ............ ......... .. 4

1 ..... ...... . ..... .... 3

st . . . . - ......

ember .

- 3

,581.5 

,553 

,939

,168.6

,475 

,100 

,293 

,898 

,757 

,886 

,592 

939 

764

ter year 1949-50 .......... 44,777.5

Mar.

119 

104 

244 

628 

405

270 

190 

145 

115 

94

80 

S9 

62 

58 

55

78 

244 

222 

179 

137

117 

106 

89 

78 

69

*65 

59 

52 

49 

51 

60

Maximum

471 

728 

492

728

287 

539 

628 

297 

297 

345 

266 

92 

98

728

Apr

157 

135 

102 

89 

92

92 

83

78 

73 

68

74 

125 

150 

133 

222

297 

290 

210 

184 

184

170 

147 

131 

104 

96

87 

81 

80 

83 

91

May

104 

110 

104 

110 

123

106 

98 

1OO 

110 

130

181 

273 

294 

260 

237

225 

241 

195 

165 

165

195 

231 

195 

173 

181

234 

297 

250 

241 

222 

207

June

219 

237 

273 

315 

283

213 

198 

207 

198 

237

277 

273 

241 

216 

222

290 

319 

290 

311 

333

283 

345 

345 

253 

210

195 

228 

273 

308 

294

Minimum Mean

12.5 116 

35 152 

40 127

9.8 110

27 79.8 

26 111 

49 138 

68 130 

98 186 

195 263 

38 116 

16 30.3 

11 25.5

11 123

Peak discharge (base, 700 sec.-ft.) . Oct . 28 (4:30 a.m.) 870 sec. -ft.}

1950

July

266 

231 

222 

219 

207

184 

163 

140 

160 

121

108 

112 

121 

112 

96

91 

89 

91 

128 

89

85 

78 

73 

65 

58

53 

48 

51 

51 

42 

38

Pelsquare 

mile

8.92

11.7 

9.77

8.46

6.14 

8.54 

10.6 

10.0 

14.3 

20.2 

8.92 

2.33 

1.96

9.46

Aug.

35 

31 

29 

26 

24

25 

25 

21 

19 

18.5

17 

16.5 

16 

16 

92

58 

40 

34 

30 

28

25 

26 

48 

44 

34

31 

30 

28 

25 

24 

23

Sept.

22 

21 

20 

21 

19

37.5 

17 

16.5 

15.5 

15.5

15 

14 

14 

13.5 

13

12.5 

12.5 

12 

12 

12

11 

11 

11 

17.5 

36

98 

89 

78 

53 

44

Runoff

Inches Acre feet

10.25 7,100 

13.03 9,030 

11.27 7,810

114.93 79,670

7.08 4,910 

8.87 6,150 

12.28 8,520 

11.15 7,730 

16.47 11,420 

22.56 15,640 

10.28 7,120 

2.69 1,860 

2.19 1,520

128.12 88,810

Nov. 27 (2 a.m.) 1,260

sec.-ft.} Mar. 4 (5 a.m.) 900 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Jan. 12-20, Jan. 29 to Feb. 9 (no gage-height record Jan. 18, 19, Feb. 2, 4-9). Shifting-control method used Oct. 12-28, Nov. 27 to Jan. 5, Feb. 25 

to Apr. 16, July 1 to Aug. 31.
LAKE WASHINGTON BASIN 113

Rock Creek near Maple Valley, Wash.

Location. Water-stage recorder, lat. 47°22'50", long. 122°01'00", in NE£ sec. 22, T. 22 

N., R. 6 E., at mouth, 2 miles southeast of Maple Valley.

Drainage area.--12.6 square miles.

Records available.--June 1945 to September 1950.

Extremes. Maximum discharge during year, 138 second-feet Mar. 5 (gage height, 3.84 feet); 

minimum, 3.8 second-feet Oct. 27.

1945-50: Maximum discharge, that of Mar. 5, 1950; minimum, 3.1 second-feet Oct. 11, 

12, 13, 1947 (gage height, 0.29 foot).

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

those for periods of no gage-height record, which are poor. No known regulation or 

diversion.

Discharge, in second feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.1

6.1

6.4

7.7

6.6

6.6

6.4

5.9

5.9

5.4

6.0

5,4

5.4

5.6

6.1

5.4

5.4

5.4

5.1

4.9

4.9

4.7

4.4

4.4

4.2

4.4

4.7

6.1

4.9

4.7

4.4

Nov.

4.7

4.4

4.7

4.9

4.9

4.9

4.9

4.9

5.4

6.1

6.1

7.9

7.9

8.3

8.3

7.7

7.7

7.7

6.6

7.4

7.4

7.7

7.4

7.7

7.7

8.5

11

12.5

13.5

14

-

Dec.

15

15.5

16

16.5

17

17

17

17

17.5

17.5

17

17.5

17

17

17

16.5

16.5

16.5

16.5

17

17

18

21

24

28

30

36

48

56

60

60

Jan.

58

54

52

48

46

48

48

48

49

48

47

44

44

42

40

38

36

34

45

55

70

74

71

68

66

64

58

54

50

48

45

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January ........ ..............

February .... . . ..............

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

April .........................

May . . . ...... ...............

June ... ..................

July ............ ........... .

August .................... ...

September ..................

Water year 1949-50 ..........

Feb.

42

42

39

39

38

38

36

38

38

39

40

42

48

52

58

62

68

70

70

68

67

66

67

78

95

105

105

101

_

-

Secondfoot-days

169 . 6

732 !5

6,118.4

1,592

1,651

2,586

1,609

987

504

340

255.2

238.5

10,887.4

Mar.

95

89

90

116

135

125

110

100

92

85

80

75

71

67

63

64

72

82

91

91

87

83

79

77

73

70

69

67

64

63

61

Maximum

7.7

14

60

63

74

105

135

61

43

21

13

10.5

9.8

135

Apr.

61

61

61

61

61

59

56

55

53

52

50

49

49

48

49

53

59

61

60

58

56

54

52

51

49

48

47

47

45

44

May

43

43

42

41

41

39

37

38

37

36

35

34

34

33

32

31

31

31

30

29

28

27

26

26

25

25

24

23

23

22

21

Minimum

4.2

4.4

15

4.2

34

36

61

44

21

13

9.5

7.2

7.5

4.2

June

21

20

20

20

19.5

19.5

19.5

18.5

18

18

17.5

17.5

17.5

17

16.5

16

16

16

16

15.5

15.5

15.5

15.5

15

14.5

14

14

14

13.5

13

Mean

5.47

7.42

23.6

16.8

51.4

59.0

83.4

53.6

31.8

16.8

11.0

8.23

7.95

29.8

July

13

13

12.5

12.5

12

12

12

12

12

11.5

11.5

11.5

11.5

11

11

11

10.5

10.5

10.5

10.5

10.5

10

10

10

10

10

9.5

9.5

9.5

9.5

9.5

Per 

square 

mile

0.434

589

l!a7

1.33

4.08

4.68

6.62

4.25

2.52

1.33

.873

.653

.631

2.37

Aug.

9.0

9

£

£

.0

.0

.0

9.0

8.5

e

8

£

8

.5

.5

.5

.5

8.1

e

a

a

.1

.1

.1

10.5

a

e

e

8

.4

.4

.1

.1

7.8

7.8

a

a

a

.1

.1

.1

7.8

7.5

7

7

7

7

.5

.5

.2

.2

7.2

Sept.

7.8

7.8

7.8

8.1

8.1

7.8

8.1

8.1

8.1

7.8

8.1

7.8

7.8

7.8

7.8

7.8

7.8

7.5

7.5

7.5

7.5

7.5

7.5

8.4

9.8

9.1

8.1

8.1

7.8

7.8

Runoff

Inches

0.50

.66

2.16

18.06

4.70

4.87

7.63

4.75

2.91

1.49 i.oo

.75

.70

3?. 12

Acre-feet

336

442

1,450

12,130

3,160

3,270

5,130

3,190

1,960

1,000

674

506

473

21,590

Mote. No gage-height record Jan. 15-25, J"uly 17 to Aug. 10j discharge computed or basis of recorded range in stage and records for nearby streams. Shifting-control method used Oct. 4 to Jan. 

14, Jan. 26 to Feb. 17, Feb. 26 to Mar. 6, Apr. 16 to July 16, Aug. 11 to Sept. 30.
114 LAKE WASHINGTON BASIN

May Creek near Renton, Wash.

Location. Water-stage recorder, lat. 47°31ilO", long. 122°IV10", in SE^SE^- sec. 32, T.

2TTT7, R. 5 E., 1 mile upstream from mouth and 2j miles north of Renton. 

Drainage area.--13.0 square miles.

Hecoras available. June 1945 to October 1950 (discontinued). 

Extremes. Maximum discharge during period October 1949 to October 1950, 354 second-feet

Mar. 4 (gage height, 3.97 feet); minimum, 2.6 second-feet Oct. 1-3, 1949 (gage height,

1.14 feet).

1945-50: Maximum discharge, 401 second-feet Feb. 17, 1949 (gage height, 3.98 feet);

minimum, 1.9 second-feet July 30, 1945, July 10, Sept. 3, 5, 1947. 

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

those for periods of ice effect, which are poor. Some small diversions for irrigation

and domestic use. No regulation.

Rating tables, Oct. 1, 1949, to Oct. 6, 1950, except periods of shifting control or Ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1,

1.2 

1.4 

1.6

1949, to Mar.

5.7 

13.5 

25

1.8 

2.0 

2.1

6, 1950 Mar.

40

57 

67

1.7 

1.8 

2.0 

2.2

1949-50

, 7 to Oct. 6, 1950

2.1 

4.1 

12 

26

2.4 

2.7 

3.0 

3.2

43 

75 

113 

146

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

P 

354

Oct.

2.6

2.6

2.6

4.8

5.4

3.7

3.4

3.1

3.7

4,2

4.0

3.4

2.8

2.8

4.5

4.0

3.4

3.1

3.1

3.1

2.8

2.8

2.8

2.8

2.8

3.1

4.5

13.5

6.4

4.8

4.5

Nov.

4.0

3.7

3.7

4.0

4.2

4.5

5.1

6.0

6.8

6.8

10

26

25

20

16

12.5

11.5

10.5

9,6

8.8

8.5

10,5

13

13

15

20

52

41

38

38

-

Dec.

34

*38

29

24

20

17

14.5

12

12

11.5

10

10.5

11.5

11

12

12.5

15

15

13

12

12

12.5

26

47

49

47

60

88

86

70

61

Jan.

50

43

38

33

29

47

61

59

52

58

55

48

42

d41

d38

d29

d27

d26

d38

172

274

259

180

104

76

b43

b36

t)39

t)35

*b31

b28

Feb.

b26

b25

b24

b25

b27

b33

31

56

58

54

52

53

80

84

88

94

80

66

56

48

42

40

40

55

86

110

94

75

_

_

-

eak discharge (base, 130 sec. -ft.). Jan

Mar.

60

54

*77

288

289

204

85

61

48

38

31

24

21

18

16

20

99

116

136

109

86

71

62

58

50

45

43

36

32

31

28

Apr.

30

31

43

37

34

33

29

26

24

20

20

33

40

34

40

59

61

53

44

37

31

27

24

20

19

17.5

22

19

16

15.5

May

17

16

15

14.5

14

13

12

11.5

11

10.5

9.6

9.1

8.6

7.7

7.7

7.2

S.2

9.1

7.7

7.2

6.9

6.9

6.3

6.3

6.0

5.6

5.6

5.3

5.3

5.3

5.0

June

4.7

4.7

4.4

4.4

4.4

4.4

5.0

4.7

4.4

4.4

4.4

4.1

4.1

4.1

4.1

4.1

3.9

3.7

3.7

3.7

3.7

3.9

3.9

3.9

3.7

3.7

3.5

3.7

3.7

3.5

July

3.5

3.5

3.3

3.3

3.3

3.3

3.3 3.e

3.7

3.7

3.E

3.E

3.E

3.3

3.3

3.3

3.3

3.3

3.7

3.5

3.3

3.1

2.9

2.9

2.9

3.1

3.1

3.5

3.3

3.1

3.1

Aug.

2.9

2.7

3.1

2.9

2.9

2.9

3.1

2.9

2.9

3.1

3.1

3.1

3.1

3.3

7.2

5.1

3.9

3.9

3.9

3.7

3.7

4,1

5.0

4.4

4.1

3.9

3.7

3.7

3.7

3.7

3.7

Sept.

3.7

3.7

3.5

3.9

3.7

3.7

3.7

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.7

3.7

3.5

3.5

3.5

3.5

3.5

3.5

4.7

5.6

6.0

4.7

4.4

4.1

4.4

-

21 (4:30 a.m.) 339 sec. -ft.; Mar. 4 (I0s30, 11:3O p.m.)

sec. -ft.; Mar. 19 (3:30,a. m.) 1,39. sec. -ft.

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed on basis of records for Issaquah Creek near 

Issaquah.

Note. Shifting-control method used Oct. 1 to Nov. 12, Nov. 26 to Dec. 28, Jan. 2O to Mar. 6. 

July 29 to Sept. 22.

1950

Day

Oct. 1 

2

Discharge

4'. 4 

4.1

Day

Oct. 3 

4

Discharge

4.1 

4.7

Day

oc t\ 5

6

Discharge

9.6

6.6

Monthly discharge, In second-feet, 1949-50

Month

October 1-6, 1950. ............

Secondfoot-days

121.1 

447.7 

893

6,044.3

2,091 

1,602 

2,336 

939 

281.1 

122.6 

102.9 

113.4 

116.2

9,166.0

33.5

Maximum

13.5 

52 

88

312

274 

110 

289 

61 

17 

5.0 

3.7 

7.2 

6.0

289

9.6

Minimum

2.6

3.7 

10

2.5

26 

24 

16 

15.5 

5.0 

3.5 

2.9 

2.7 

3.5

2.6

4.1

Mean

3.91 

14.9 

28.8

16.6

67.5 

57.2 

75.4 

31.3 

9.07 

4.09 

3.32 

3.66 

3.87

25.1

5.58

Per 

square 

mile

0.301 

1.15 

2.22

1.28

5.19 

4.40 

5.80 

2.41 

.698 

.315 

.255 

.282 

.298

1.93

.429

Runoff

Inches

0.35 

1.28 

2.55

17.29

5.98 

4.58 

6.68 

2.69 

,80 

.35 

.29 

.32 

.33

26.20

.10

Aore-feet

240 

888

1,770

11,990

4,150 

3,180 

4,630 

1,860 

558 

243 

204 

225 

230

18,180

66
LAKE WASHINGTON BASIN 115

Issaquah Creek near Issaquah, Wash.

Location. Water-stage recorder, lat. 47°28'55", long. 122°02'10", in W| sec. 15, T. 23

M. , K. 6 E., 3f miles south of Issaquah and 4 miles' upstream from East Pork. Prior to

Oct. 1, 1948, at datum 0.99 foot higher. 

Drainage area. 22.1 square miles. 

Kecoras available. June 1945 to September 1950. 

Extremes. Maximum discharge during year, 800 second-feet Mar. 4 (gage height, 3.60 feet);

minimum not determined, probably occurred during period of no gage-height record Oct.

1 3.

1945-50: Maximum discharge, 1,120 second-feet Feb. 17, 1949-(gage height, 4.64

feet); minimum not determined, probably less than 13 second-feet during period of

doubtful or no gage-height record in August, September, or October 1949. 

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

Many small diversions for irrigation and domestic use. No regulation. 

Revisions (water years). W 1092: 1946.

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Jan. 22 to Mar. 3)

Oct. 1 to Dec. 27 Dec. 28 to Sept. 30

1.5 14.5 2.3 140 0.9 11.5 2.0 170 

1.6 22 2.6 220 1.1 21 2.3 255 

1.8 44 3.0 350 1.3 41 2.6 360 

2.0 77 1.5 70 2.8 440 

1.7 104 3.0 520

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Ootc 

Nove 

Deoe

Ca

Jam: 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

fla

Oct.

13 

13 

20 

28 

31

26 

28 

22 

31 

47

36 

30 

25 

23 

30

27 

23 

20 

16.5 

16.5

16 

15 

15 

14.5 

14.5

15 

18 

101 

44 

32 

27

Nov.

23 

21 

20 

19 

19

18 

18 

19.5 

24 

23

27 

93 

112 

95 

64

47

38 

34 

32 

28

26 

36 

43 

50

61

77 

238 

152 

120 

110

Dec.

95 

108 

85 

73 

63

54 

47 

43 

44 

42

37 

43 

42 

40 

47

48 

52 

49 

43 

40

39 

150 

240 

200 

160

140 

350 

500 

340 

252 

210

Jan.

170 

144 

124 

112 

104

163 

172 

151 

133 

139

126 

112 

102 

93 

88

84 

78 

73 

115 

447

508 

582 

364 

222 

156

135 

114 

97 

97 

93 

86

Feb.

70

56 

56 

62 

68

93 

86 

126 

112 

112

112 

126 

198 

188 

228

237 

198 

165 

153 

131

131 

146 

163 

288 

360

340 

234

180

itrmtt. SecondMonth foot-days

ber .......................

mber ...................... 3

lendar year 1949 

arv .

818 

,687.5 

,676

......... 21,329

5

1 ......................... 3

1

.......................... 1

ember .....................

184 

419 

,453 

964 

845 

050 

593 

569 

532

ter year 1949-50 .......... 30,790.5

Mar.

148 

137 

230 

628 

464

306 

249 

201 

172 

158

146 

139 

137 

133 

131

146 

324 

288 

324 

249

207 

195 

172 

165 

153

148 

148 

142 

137 

139 

137

Maximum

101 

238 

500

792

582 

360 

628 

195 

95 

54 

23 

48 

49

628

Apr.

165 

156 

165 

148 

142

142 

137 

135 

135 

133

133 

137 

131 

122 

148

195 

180 

146 

128 

124

122 

120 

120 

105 

95

92 

122 

105 

95 

86

May

92 

88 

82 

78 

85

95 

85 

75 

70 

65

64 

64 

60 

56 

54

52 

51 

64 

58 

50

45 

41 

39 

38 

37

40 

45 

51 

44 

40 

37

June

36 

38 

35 

34 

33

35 

39 

43 

35 

32

34 

31 

33 

35 

32

33 

34

31 

28 

26

32 

40 

54 

50 

43

38 

34 

30

27 

25

P 

Minimum Mean sqi 

m

July

23 

22 

22 

21 

20

19 

19 

19 

22 

20

20

19 

18.5 

18 

18.5

18 

18 

18 

23 

20

18 

17.5 

17.5 

17 

17

17 

17.5 

20 

19 

17.5 

17

Aug.

16.5 

16.5 

16.5 

16.5 

16.5

17.5 

17.5 

16.5 

16 

16

16 

16 

16 

17 

48

30

20 

18 

17 

17

16 

17 

21 

20 

18

17.5 

16.5 

16 

15.5 

15.5 

15

Sept,.

15 

15 

15.5 

16.5 

16

14.5 

14.5 

14 

14 

14.5

14.5 

14 

14.5 

14.5 

14.5

15 

14.5 

14 

14 

14

14 

14 

14 

17.5 

42

49

25 

25 

20 

18.5

er Runoff

l e° Inches Acre-feet

13 26.4 1.19 1.38 1,620 

18 56.2 2.54 2.84 3,350 

37 119 5.38 6.19 7,290

13 58.4 2.64 35.91 42,290

73 167 7.56 8.72 10,280 

56 158 7.15 7.44 8,760 

131 208 9.41 10.86 12,800 

86 132 5.97 6.67 7,860 

37 59.5 2.69 3.10 3,660 

25 35.0 1.58 1.77 2,080 

17 19.1 .864 1.00 1,180 

15 18.4 .833 .96 1,130 

14 17.7 .801 .90 1,060

13 84.4 3.82 . 51.83 61,070

Peak discharge (base, 500 sec. -ft.). About Dec. 28 (time unknown) 582 sec. -ft. j Jan. 22 (8:30 -a.m.)

650 sec. -ft. j Mar. 4 (7 a.m.) 800" sec. -ft. 

Note. No gage-height record Oct. 1-3, Dec. 18-28, Jan. 29, 30, Feb. 1-4, Apr. 23-23, Apr. 28 to 

May 21, May 23 to July 9; discharge computed on baala of recorded range in stage, 1 discharge measurement, and records for nearby streams.
XJ- U LAKE WASHINGTON BASIN

Sammamlsh Lake near Redmond, Wash.

Location.--Staff gage, lat. 47°38'4Q", long. 12£°Q6'10", in NEj sec. 24, 1. 25 N., R. 5 E., 

on left shore, 0.6 mile upstream from outlet and 1.8 miles south of Redmond. Datum of 

gage is 32.13 feet above mean lower low water at Seattle (Corps of Engineers bench 

mark).

Drainqge area.--91 square miles.

Records available. January 1939 to September 1950.

Extremes.--Maximum gage height observed during year, 7.30 feet Mar. 6, 7; minimum observed, 

 0.39 foot Oct. 1-3.

1939-50: Maximum gage height observed, that of Mar. 6, 7, 1950; minimum observed, 

0.25 foot Sept. 27, 30, Oct. 1, 1939.

A stage of 9.83 feet was observed by R. L. Tolman on Dec. 22, 1933, from information 

by Corps of Engineers.

Remarks.--Gage read once daily. Many small diversions from tributaries for irrigation and 

domestic use. Slight regulation on tributaries.

ge height, In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.39

.39

.39

.42

.50

.50

.51

.52

.51

.57

.58

.58

.56

.55

.60

.60

.60

.59

.58

.57

.55

.53

.52

.52

.52

.53

.53

.66

.69

.70

.71

Nov.

0.71

.71

.71

.71

.70

.69

.69

.68

.70

.72

.80

.86

1.05

1.16

1.20

1.26

1.27

1.29

1.29

l.ZB

1.27

1.27

1.30

1.34

1.43

1.40

1.70

1.90

2.00

2.10

-

Dec.

2.18

2.30

2.34

2.34

2.38

2.37

2.35

2.33

2.32

2.37

2.34

2.29

2.24

2.21

2.18

2.18

2.18

2.18

2.17

2.15

2.13

2.13

2.18

2.45

2.56

2.76

2.90

3.34

3.60

3.80

3.94

Jan.

3.94

3.99

3.97

3.92

3.89

3.85

4.00

4.07

4.07

4.11

4.15

4.15

4.13

4.09

4.05

3.95

3.86

4.00

4.07

4.19

4.88

5.80

5.23

5.45

5.52

6.48

6.38

6.25

6.08

5.95

5.75

Feb.

5.60

5.42

5.25

5.11

5.06

4.98

4.97

5.03

5.06

5.07

5.07

5.05

5.14

5.24

5.34

5.54

5.66

5.66

5.64

5.59

5.56

5.50

5.45

5.54

5.68

5.95

6.14

6.19

_

-

Mar.

6.14

6.07

6.00

6.54

7.06

7.30

7.30

7.24

7.12

6.97

6.80

6.63

6.42

6.24

6.08

5.90

5.98

6.14

6.38

6.48

6.48

6.46

6.37

6.28

6.19

6.07

5.99

5.86

5.70

5.58

5.46

Apr.

5.38

5.30

5.26

5.16

5.08

5.01

4.89

4.81

4.70

4.60

4.46

4.44

4.44

4.38

4.34

4.40

4.52

4.52

4.48

4.42

4.35

4.28

4.20

4.14

4.08

4.02

3.94

3.88

3.80

3.73

May

3.67

3.6O

3.54

3.46

3.41

3.36

3.29

3.23

3.17

3.10

3.02

2.96

2.88

2.82

2.74

2.67

2.64

2.58

2.54

2.48

2.43

2.37

2.31

2.25

2.18

2.12

2.10

2.04

1.98

1.92

1.88

June

.85

.80

.74

.71

.68

.64

.63

.59

.56

.53

.50

.48

.45

.43

.40

.37

.35

.33

.30

.27

.24

.23

.21

.20

.18

.16

.14

.13

1.12

1.10

-

July

.08

.06

.04

.02

.OC

.98

.95

.9Z

.94

.92

.9C

.ee

.87

.87

.86

.84

.82

.80

.81

.81

.8C

.75

.76

.77

.76

.74

.72

.73

.72

.71

.71

Aug.

0.70

.69

.68

.67

.65

.65

.65

.64

.63

.61

.60

.59

.59

.59

.68

.73

.73

.73

.73

.72

.72

.71

.77

.75

.73

.71

.71

.71

.70

.69

.68

Sept.

0.67

.66

.66

.66

.65

.64

.62

.61

.59

.59

.58

.57

.57

.56

.55

.55

.54

.53

.53

.52

.51

.51

.50

.54

.62

.65

.65

.65

.65

.65

-
LAKE WASHINGTON 3ASIN 1JSammamisn River near Redmond, Wash.

Location.--Water-stage recorder, lat. 47°4n'10'1 , Ion;;. 1E^10 07 ! ?5 1 ', in NE-J- sec. 11, T. 25 

 N. , H. 5 E., 500 feet downstream from Bear Creek, half a pile west of Redmond, and 1-5- 

miles downstream from Sammamish Lake.

Drainage ar-_a.--140 square miles.

Records available. January 1933 to September 1950.

Average discharge.--11 years", 281 second-feet.

Extremes.--Maximum diojharae during year, 1,360 second-feet Mar. 6 (gage height, 8.35

eet) ; minimiun, 6C second-feet Sept. 23

1929-50: Maximum discharge, that jf Mar. C, 1950: minimum observed, 51 second-1eet

7. 30. Oct. i. 1939.

Remarks.--Records fair. Some small diversions from tributaries for irrigation ard domeo-

; use. Slight regulation on tributaries.

Discharge, in sscond-feet. water year October 1949 to September 195

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

)

oO

31

Oct.

82

81

81

ICO

119

108

106

96

95

100

98

98

95

95

107

104

101

98

96

96

95

94

94

93

93

93

95

125

120

Nov.

108

108

106

106

105

105

104

106

119

116

135

194

212

200

188

182

177

177

172

172

172

Dec.

307

345

322

322

307

300

285

278

278

271

264

264

257

250

257

292

292

285

264

250

244

1771 244

£001 285

200

212

230

30V

293

285

112 300

110| -

337

353

394

402

471

507

526

545

Jan.

545

526

507

50V

489

526

564

564

545

584

604

564

545

526

507

507

471

453

471

566

891

1,060

1,170

1,140

1,120

1,090

1,060

1,010

939

891

844

Feb.

821

775

731

709

709

731

731

7S3

798

775

775

775

821

844

867

891

891

891

891

Mar

1,010

988

1,010

1,200

1,330

1.36C

1,530

1,310

1,250

1,220

1,200

1,140

1,090

1,040

988

963

1,040

1,090

1,140

844 1,140

344

821

1 , 140

1,140

821 1,120

844 1,060

915

1,010

1,060

1,040

-

-

_

u--.ii. SecondMonth foo*-days

October ...... ................ 3 ,08C

November . .................... 5,267

December ...... ............... ° QQa

Calendar year 1949 ...

January

94,614

91 QBA

February ...................... 23^423

March ............ ............ 33,926

April . . ... ... . . .......... 19,529

May. .................... ...... 11,145

June .......................... 5,236

July. ......................... 3,266

Septemter. .................... 2,139

Water year- 1949-50. ......... 141,457

1,040

1,010

988

939

915

891

344

Apr.

844

821

798

775

753

731 *09

687

666

645

624

645

666

624

624

666

687

666

645

624

624

6O4

604

584

545

545

545

545

526

507

Maximum

125

307

545

846

1,170

1,060

1,350

84^

507

234

132

91

79

1,360

May

507

489

471

471

471

471

453

436

419

410

394

385

377

369

353

345

345

337

330

314

314

3OO

292

285

278

271

June

234

22B

2?1

214

208

202

202

196

196

190

184

184

178

178

172

166

166

166

160

154

154

149

149

149

144

144

264- 138

2i"' ! 138

250

247

240

Minimum

81

104

244

60

453

709

844

507

240

155

88

74

62

62

137

135

_

Mean

99.4

176

3°3

259

705

837

1,094

651

360

175

105

82.6

71.3

388

July

13E

L29

L27

L 25

Lc3

Ll9

IK

as

L15

112

110

L08

L07

07

105

103

Per 

square 

mile

0.710

T VK

0*1

1.85

5 *"04

7 . 81

4 . 65

2.57

l'.25

.750

590

,509

2.77

01

99

LOO

39

98

97

96

35

94

91

90

90

89

88

sa

Aug.

86

85

84

83

81

81

81

79

76

76

75

74

74

74

83

87

87

Sept.

73

78"8

78

77

76

?4

73

72

72

71

70

70

69

68

6-

66

87 65

87

86

86

85

31

88

86

94

84

84

83

82

81

65

64

63

S3

C2

66

73

76

76

76

76

76

_

. Runoff

Inches

0.82

1.40

2.66

25.16

5 . 81

6 . 22

9.01

5 . 19

2 . 96

l!39

. 87

.68

.57

Ac re- feet

6,110

10,450

19, 830

187,700

43,410

46,460

67,290

38,740

22,110

10,390

6,480

5,080

4,240

37.58J 280,600

Note.--Discharge for May 30 to Sept. 30 computed from once daily readings of Sammamish Lake gage.
118 LAKE WASHINGTON BASIN 

SammanUsh River at Bothell, Wash.

Location. Water-stage recorder, lat. 47 9 45'00", long. 122 9 11'30", In NW^SEi sec. 8, T. 

Zb N., R. 5 E., in Bothell, a quarter of a mile downstream from North Creek and 4$ 

miles upstream from mouth. Datum of ga^e is mean lower low water at Seattle (Corps of 

Engineers bench mark).

Drainage area. 199 square miles.

Records available. October 1939 to September 1950.

Average discharge. il years, 356 second-feet.

Extremes. Maximum discharge during year, 1,630 second-feet Mar. 5, 6 (elevation, 31.60

 TeTET; minimum, 80 second-feet Aug. 12, 13; minimum elevation, 23.34 feet Sept. 22, 23.

1939-50: Maximum discharge,-that of Mar. 5, 6, 1950; minimum, 63 secord-feet Aug. 

30, 1944; minimum elevation, that of Sept. 22, 23, 1950.

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

 S3KS1 small diversions from tributaries for irrigation and domestic use, Slight regulation on tributaries.

Correction. Mean discharge for the water year 1949 has been corrected to 382 second-feet 

superseding figure published In Water-Supply Paper- 1152.

Discharge, la second-feet, water year October 1949 to Septenter 1950

Day

1 

2 

3

4 

6

6 

7

8 

9 

10

11 

12 

13 

14 

16

16 

17 

IB 

19 

20

21 

22 

23 

24 

26

26 

27 

28 

29 

30 

31

Oct.

100 

100 

98 

156 

208

176 

170 

142 

159 

145

139 

138 

132 

128 

150

146 

138 

132 

130 

128

127 

126 

125 

124 

125

124 

136 

196 

176 

156 

150

Nov.

148 

146 

145 

145 

144

143 

143 

146 

196 

176

243 

366 

344

292 

250

236 

222 

222 

215 

215

208 

229 

257 

250 

278

322 

439 

359 

336 

374

Dee.

382 

473 

422 

39O 

374

359 

352 

344 

344 

344

329 

336 

336 

329 

344

473 

456 

422 

374 

352

359 

366 

491 

584 

565

534 

565 

685 

706 

727 

769

Jan.

706 

664 

624 

604 

584

685 

748 

706 

685 

835

813 

748 

664 

624 

624

624 

584 

546 

604 

977

1,410 

1,600 

1,570 

1,460 

1,360

1,310 

1,260 

1,180 

1,090 

1,020 

947

Month

Octo 

Nova 

D»oe

Ca

Janu 

r*br

Bare

&1

June 

July 

Auga 

Sept

Wa

bar ................ ...,--.

 bar ...................

lender year 1349 .........

ary . .

enter .....................

ter year 1949-50 ..........

Feb.

901 

857 

813 

835 

879

993

1,040 

1,180 

1,160 

1,060

1,040 

1,020 

1,160 

1,140 

1,180

1,180 

1,110 

1,060 

1,060 

1,020

970 

947 

924 

947 

1,090

1,260 

1,360 

1,280

Seccadfoot-daye

4,360 

7,189 

13,936

122,615

27,856 

23,466 

39,180 

21,451 

12,276 

6,324 

3,699 

2,956 

2,848

171,541

Mar.

1,210 

1,160 

1,180 

1,460 

1,600

1,630 

1,600 

1,550 

1,460 

1,440

1,360 

1,280 

1,230 

1,160 

1,110

1.O6O 

1,210 

1,260 

1,330 

1,330

1,310 

1,280 

1,260 

1,210 

1,160

1,140 

1,110 

1,110 

1,040 

993 

947

Maxima

208 

433 

763

1,490

1,600 

1,360 

1,630 

947 

546 

271 

148 

126 

1S2

1,630

Apr.

947 

901 

879 

835 

813

791 

769 

727 

727 

665

68S 

791 

769 

706 

706

769 

769 

727 

706 

685

664 

644 

664 

624 

604

584 

604 

584 

546 

546

May

546 

527 

509 

509 

527

509 

491 

473 

456 

439

439 

422

406 

390 

382

374 

374 

374 

3S9 

352

344

336 

322

314 

306

239 

3O6 

323 

299 

285 

278

MiaiBUB

98

143 

329

73

546 

813 

947 

546 

278 

149 

96 

82 

85

82

June

271 

264 

250 

243 

236

243 

243

250 

236 

229

229 

215 

215 

215 

208

202 

202 

19« 

1S9 

182

183 

136 

222 

196 

182

176 

170 

170 

156 

149

Mean

141 

240 

450

336

899 

1,052 

1,264 

715 

396 

211 

119 

95.4 

94.9

470

July

148 

146 

139 

137 

137

132 

131 

131 

138 

131

128 

122 

120 

116 

115

115 

111 

106 

134 

121

113 

107 

105 

102 

10Q

99 

103 

108 

1O5 

103 

96

Per 

square 

Bile

O.'09 

1.21 

2.26

1.69

4.52 

5.29 

6.35 

3.59 

1.99 

1.06 

.598 

.473 

.477

2.36

Aus.

93 

92

92 

90 

90

93 

94 

90 

88 

85

83 

82 

84 

87 

126

125 

106 

102 

96 

93

91 

91 

112 

107 

104

100 

94 

92 

91 

91 

92

Sept.

87 

87 

88 

95 

93

as

68 

88 

88 

89

89 

89 

89

90 

90

90 

90 

90 

30 

91

90 

86 

85 

99 

132

128 

115 

112 

107 

105

Runoff

Inches

0.81 

1.34

2.60

22.90

5.21 

5.51 

7.32 

4.01 

2.29 

1.18 

.69 

.55 

.53

32.04

Acre-feet

8,650 

14,260 

27,640

243,200

55,250 

58,440 

77,710 

42,550 

24,350 

12,540 

7,340 

5,860 

5,650

340,200'

Peak discharge (base. 700 sec. -ft .J.. Dec. 31 (4 a.m.) 791 sec. -ft. I Jan. 10 (9 p.m.) 879 sec. -ft.

(6 a.m.) 1,390 sec.-ft.; 3 p.m. Mar. 5 to 2 a.m. Mar. 6, 1,630 sec.-ft. 

Note. Shifting-control method used Oct. 1 to July 4, Aug. 21 to Sept. 30.
LAKE WASHINGTON BASIN 119

Bear Creek at Redmond, Wash.

Location.--Water-stage recorder, lat. 47°40'10", long. 122°06'30", in NE-jj set. 12, T. 25

S. , K. 5 E., half a mile east of Redrnond and three-quarters of a mile upstream from

mouth.

Drainage area. 47.0 square miles.

Records available.--June 1945 to November 1950 (discontinued). 

Extremes.--Maximum discharge during period October 1949 to November 1950, 654 second-feet

War. 5; maximum gage height, 6.53 feet Jan. 22; minimum discharge, 16.5 second-feet

Sept. 12.

1945-50: Maximum discharge, that of Mar. 5, 1950; maximum gage height, that of

Jan. 22, 1950; minimum discharge, 13 second-feet Aug. 26, 1947 (gage height, 1.88 feet), 

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

and those for periods of no gage-height record, which are poor. Many small diversions

for irrigation and domestic use. Slight regulation.

Discharge, in second-feet, 1949-50 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

25

25

25

44

58

49

46

38

36

38

34

36

32

30

40

37

33

31

30

30

30

30

29

29

28

29

32

56

46

39

36

Nov.

33

33

32

32

31

31

30

32

44

42

57

116

116

84

64

54

48

45

43

41

39

48

60

52

Dec.

84

119

89

78

73

65

61

56

60

59

54

58

59

55

69

109

112

95

82

71

68

68

108

143

58 j 145

69

148

98

80

89

~

170

155

166

154

154 15-7

Jan.

136

118

100

80

75

136

156

138

126

176

178

143

110

95

90

85

82

80

200

355

565

602

Feb.

76

74

70

80

90

150

163

248

230

214

206

214

325

295

315

315

257

206

184

159

155

153

578 ! 142

515

300

170

140

120

100

90

80

184

275

428

Mar.

239

206

257

590

640

590

478

325

257

206

176

154

141

124

112

124

325

325

365

315

257

230

198

176

159

149

452 144

315

_

-

125

117

119

114

Apr.

122

114

113

98

92

96

87

84

81

76

78

128

137

106

118

150

140

117

104

94

87

86

95

86

79

76

95

86

77

71

-

May

7S

73

68

68

92

90

78

72

67

65

61

57

55

53

52

50

54

57

53

52

49

46

45

43

40

39

42

54

47

44

39

June

38

36

35

34

32

35

38

37

35

34

35

32

33

33

33

32

31

31

29

28

30

32

52

July

24

24

23

24

23

23

23

23

2S

24

24

22

22

22

22

22

Aug.

21

20

20

20

20

23

24

22

21

20

19.5

20

19.5

21

39

33

21 26 20'

H26

24

22

22

24 i 19

24.

22

33 20

32

29

27

28

26

25

~

20

20

30

26

26

21 1 22

22

24

24

24

21

21

20

19.5

19.5

18.5

Sept.

18

19

19

21

18.5

18

18

18.5

18

18.5

18.5

17.5

17.5

19

18.5

20

19.5

19

19.5

19

18.5

18.5

IS

25

41

39

32

SO

28

26

~

Peak discharge (base, 500 sec.-ft.). Jan. 22 (3 p.m.) S27 sec.-ft.; Feb. 13 (3 p.m.) 335 sec.-ft. 

Feb. 26 (8_ to 9 p.m.) 502 sec.-ft.; Mar. 5 (4 p.m.) 654 see.-ft.: Mar. 19 (1 a.m.) 375 sec.-ft.

Note.--Ko gage-height record Jan. 3-5, 13-19, Jan. 25 to Feb. 5; discharge computed on basis of 

records for nearby streams. Shifting-control method used Nov. 27 to Jan. 2, Jan. 6-12, 20-24, Feb. 

6 to Mar. 7, Sept. 27-30.

1950

Day

1

2

3

4

5

6

7

8

Oct.

25

24

22

26

53

39

34

47

Nov.

91

86

88

76

66

65

-

Day

9

10

11

12

13

14

15

16

Oct.

64

81

51

41

36

34

30

28

Nov.

_

-

_

.

-

-

-

-

Day

17

18

19

20

£1

22

23

24

Oct.

28

35

49

39

36

32

29

29

Nov.

_

-

_

_

_

_

_

-

Day

25

26

2V

28

29

30

31

Oct.

41

4G

49

8S

73

64

6S

Nov.

_

-

_

-

-

-

-

Monthly discharge, In second-feet, 1949-50

Month

October 1949 .................'

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

April .........................

May.. .........................

July. ........................

October 1950 .................

November 1-6 .................

Secondfoot-days

1,101 

1,749 

2,996

23,860

5,919 

5.975 

7,737 

2,973 

1,781 

965 

713 

698.5 

651.5

33,259

1,337 

472

Maximum

58 

148 

170

435

602 

452 

640 

150

38 

29

39 

41

640

86 

91

Minimum

25 

30 

54

18

75 

70 

112 

71 

39 

25 

20 

18.5 

17.5

17.5

22

65

Mean

35.5 

58.3 

96.6

65.4

191 

213 

250 

"59.1 

57.5 

32.2 

23.0 

22.5 

21". 7

91.1

43.1 

78.7

Per 

square 

mile

0.755 

1.24 

2.06

1.39

4.06 

4.53 

5.32 

2.11 

1.22 

.685 

.489 

.479 

.462

1.94

.917 

1.S7

Runoff

Inches

0.87 

1.38 

2.37

18.88

4.68 

4.73 

6.12 

2.35 

1.41 

.76 

.56 

.55 

.52

26.30

1.06 

.37

Acre-feet

2,180 

3,470

5,940

47,310

11,740 

11,850 

15,350 

5,900 

3,530 

1,910 

1,410 

1,390 

1,290

65,350

2,650

936

238382 0-53-9
LAKE WASHINGTON BASIN

tlorth Creek near Bothell, Wash.

Location.--Water-ctage recorder, lat. 4"°47'30", long. 122°11'50", on line between sees. 

29 and 32, T. 2? W., R. 5 E., 2 miles north of Eothell and 2f miles upstream from 

mouth. Prior to Apr. 5, 1950, at datum 0.59 foot lower.

Drainage area.--18.7 square miles.

Recoids available.--J ily 1945 to September 1950.

Extremes.--Maximum discharge during year, 365 second-feet Jan. £2 (gage height, 4.49 feet, 

present datom), but may have been higher during period of no gage-height record; minimum, 4.4 second-feet Aug. 31.

1945-50: Maximum discharge, 455 second-feet Feb. 17, 22, 1949, from rating curve 

extended above 240 second-feet on basis of slope-area determination of peak flow; maximum gage height, 5.45 feet, present datum, Feb. 22, 1949; mininum discharge, 1.0 

second-foot Mg. 10, 1946.

Remarks.--Records fair. Many small diversions for irrigation and domestic use. Slight 

regulation for farm use.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct .

8.8

8.1

8.4

24

28

20

18

12

13.5

13.5

12

12.5

11

10.5

14

12

11

10

10

10

10

10

10

10

10

10.5

13.5

27

17

14

12

Nov.

12

11.5

11

11

11

11

11

12

32

22

60

88

63

43

28

22

19

18.5

17

15

14

25

27

24

36

52

66

36

30

36

_

Dec.

46

62

48

38

33

29

26

25

22

20

19.5

22

22

20

36

71

63

48

36

30

40

42

99

87

78

64

70

79

78

77

82

Jan.

64

50

48

46

48

54

62

53

48

87

74

59

56

53

52

50

47

46

70

170

Feb. liar

 ' 

74 130

68 110

64 15O

76 I 250

95 290

120 250

Apr. May

52 1 28

48 23

June

12.5

12

47 23 11

46 22 1C

46

.5

36 10.5

July Au|

 

8.7 £

7.9

8.3

r

11

8.3 11

Sept.

. 6 1 6 . 2

.e 7.s

8.7

8.7

7.9 11

44 30 12 7.9

140 220 39 24

160

140

120

105

115

IZn

110

120

130

115

105

98

92

250 j 88

335 I 84

250

164

140

125

115

105

96

88

82

Month

October . ............ .....

November . . . . ...............

December . . . . ......... ......

Calendar year 1949 ... .....

January ... . ... . . ........

February ........ . . .......

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

April ... .......... ... . ...

Hay ... . .... ......... . . ...

June ......... ..... .... . .

July ........ . . ......... ....

August .... .... ........ ....

September .................

Water year 1949-50 ...... ...

78

100

125

150

170

150

_

_

Secondfoot-days

411 864' 3

1,512.5

11,430.5

2,987

3, 112

4,097

1,193

595 5

348 ll

270.2

281.8

257.0

15,929.4

200

170

150

120

110

105

98

90

100

120

36 22

34

30

35

73

59

51

50

58

52

140 , 43

175 37

160

140

120

110

100

92

82

74

67

62

58

54

Maximum

28

88

99

412

335

170

290

73

36

25

13.5

15

16

335

33

30

33

34

29

27

26

30

26

23

22

_

21

19.5

IE

It

14

8.3

.5 9.6

10

11.5 8.7

18.5 11 ! 8.7

17

16

15.5

14.5

16

18.5

19.5

17

16

16

15.5

15

14

12

12.5

20

26

1C

1C

1]

.5 8.3

.5

11

L

f

t

E

.2

.2

.7

.3

8,3

c

12

2E

14

.6

.5

i.S

12

10.5

c

1C

18.5 £

15.5

33.5

1C

1 

Minimum Mean

B.I 13 .3

11 23.8

19.5 48.8

5.5 31.3

46 ye. 4

64 111

54 132

22 39.8

12 19 2

8,3 11.6

6.6 8.72

5.8 9.09

6.2 8.57

5.8 43.6

.6

.7

.5

_

11

11

1C

1C

.5

.5

10.5

10.5

1C

7.9 1C

8,3 I 1C

.5

. 5

.5

8.3 15

8.3

7.9

7.1

13.5

9.2

8.3

7.5

7.1

6.6

6.6

7.9

9.6

12

11

10.5

10

Per

square 

mile

0.711

1.54

2.61

1.67

5.16

5.94

7.06

2.13

1.03

.620

.466

.486

.458

2.33

E

£

6

.3

.6

.6

6.6

6.6

e

1C

£

£

.3

.7

.3

7.1

6

6

6

6

.6

.2

.8

.2

.2

7.5

6.6

6.6

7.1

7.1

7.5

7.9

7.9

8.7

9.2

8.7

9.2

8.3

7.9

7.9

8.3

7.9

7.9

8.7

14

16

12.5

9.2

8.3

7.5

7.1

_

1

Runoff

Inches

C.82

1.72

3.01

22.75

E .94

£.19

E .15

2.37

1.18

'54

'.56

.51

31.68

Acre-feet

816

1,710

3,000

22,660

5,920

6,170

8,130

2,370

1,180

690

536

559

510

31,590

Peak discharge (base, 250 sec.-ft.). Jan. 22 (9 a.m.) 365 see.-ft.; about Mar. 5 (time and discharge unknown).

Note. No gage-height record Jan. 3-5, 13-21, Jan. 25 to Apr. 4, May 21, 25; discharge computed 

on basis of recorded range In stage and records for Sammamish River at Bothell.
SNOHOMISH RIVEH BASIN 121

South Fork Skykomish River near Skykomish, Wash.

Location.--Water-stage recorder, lat. 47°42'20", long. 121°18'30", in NW^NE^- sec. 31, T. 26 

W., K. 12 E., a quarter of a mile downstream from Foss River and Z\ miles east of 

Skykomish.

Drainage area.--135 square miles.

Records available.--August 1929 to September 1931, July 1946 to December 1950 (discontinued)

Extremes.--Maximum discharge during period October 1949 to December 1950, 12,400 second- 

 i'eet Nov. 57, 1949 (gage height, 10.51 feet), from rating curve extended above 6,600

second-feet; minimum, 243 second-feet Oct. 3, 1950 (gage height, 1.52 feet).

1929-31, 1946-50: Maximum discharge, that of Nov. 27, 1949; minimum not determined,

probably occurred during period Jan. 10-31, 1930, when stage-discharge relation was

affected by ice.

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

No diversion or regulation.

Rating table, October 1949 to December 1950 (gage height, In feet, 

and discharge, In second-feet)

1.5 

1.7 

2.0 

2.5 

3.0

238

285

363

523

733

3.5 

4.0 

.4.5 

5.0 

6.0

980

1,270

1,600

1,960

2,880

7.0 4,190

8.0 5,990

9.0 8,290

Discharge, In second-feet, 1949-50 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

288

273

259

509

643

622

505

437

1,080

1,180

1,240

1,300

980

305

905

805

687

601

542

505

470

453

437

421

406

406

453

3,170

1,780

1,180

955

Nov.

805

733

665

601

561

505

470

470

470

437

523

96S

1,560

1,700

1,270

1,000

855

780

710

643

581

643

880

1,700

1,810

2,710

7,640

3,350

2,290

1,740

-

Dec.

1,780

2,500

1,700

1,390

1,210

1,030

905

830

780

710

643

622

581

542

523

505

487

470

437

421

421

470

561

523

505

523

1,150

2,290

1,530

1,090

880

Jan.

733

643

561

542

523

505

470

437

421

406

391

377

344

a345

a350

a360

a350

a345

a400

a800

1,500

1,530

1,120

855

687

622

601

542

523

a500

a485

Feb.

a470

a450

a425

391

363

355

344

344

336

326

323

315

339

355

437

542

523

487

470

437

437

453

487

905

980

1,060

880

710

_

-

Mar.

622

581

1,110

2,800

1,780

1,360

1,090

905

805

710

643

581

542

505

487

542

880

930

855

756

665

643

581

542

505

487

487

470

437

437

487

Apr.

880

756

643

581

581

581

542

523

505

487

505

687

830

780

880

1,120

1,300

1,060

980

1,030

1,090

980

880

780

733

665

643

601

622

643

May

710

756

733

733

733

687

643

665

733

830

1,240

1,960

2,470

2,470

2,290

2,120

2,040

1,700

1,460

1,360

1,640

1,960

1,700

1,600

1,740

2,120

2,880

2,380

2,120

2,040

Z,040

June

2,290

2,470

2,770

3,350

3,110

2,290

2,040

1,880

1,880

2,290

2,880

3,230

3,230

2,990

July

3,750

3,350

3,110

3,230

3,230

2,880

2,670

2,290

2,200

1,960

1,740

1,740

1,960

1.960

2,880 1,810

3,480

4,040

3,610

4,040

4,510

4,040

3,230

3,230

2,470

2,120

2,200

Z.570

3,350

4,040

4,040

1,640

1,700

1,780

1,960

1,810

1,740

1,780

1,740

1,740

1,640

1,500

1,330

1,270

1,180

1,030

980

Aug.

1,000

1,000

930

830

780

756

756

710

687

665

643

643

601

581

1,350

1,560

1,030

855

756

733

687

665

855

855

710

643

601

561

505

470

453

Sept.

437

437

437

421

406

377

360

341

333

328

320

315

305

300

290

288

278

268

263

259

259

259

254

263

377

561

406

377

323

290

Peak discharge-(base. 3.500 see.-ft.).-^Oct. 28 (12 m.) 4,850 sec.-ft.; Nov. 27 (5:30 a.m.) 12,400 

sec.-ft.; June 20 [12 m.) 4,680 sec.-ft.; June 29 (10 to 11 p.m.) 4,510 sec.-ft.

a No gage-height record; discharge computed on basis of weather records and records for station 

near Index.
SNOHOMISH RIVER BASIN

Discharge, In second-feet, of South Pork Skykomlsh River near Skykomlsh, Wash., 1949-50 Continued

1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

273

259

247

263

406

523

756

930

980

3,220

1,870

1,180

905

955

805

687

622

830

1,210

1,360

1,000

830

733

665

880

880

1,060

1,150

980

880

780

Nov.

805

830

1,150

1,390

1,560

1,270

1,150

955

830

756

687

622

581

561

523

542

505

487

437

505

880

1,360

1,150

1,960

2,470

2,800

2,670

1,960

1,530

1,270

-

Dec.

1,060

930

855

780

710

756

805

_

_

-

_

_

_

_

-

_

_

_

-

_

_

_

-

_

_

_

_

-

Jan. Feb. Mar. Apr. May June July Aug. Sept.

Peak discharge (base. 5,500 sec.-ft.) . Oct. 10 (12 m.) 4,680 sec.-ft.

Monthly discharge, In second-feet, 1949-50

Month

May...........................

December 1-7 .................

Secondfoot-days

24,297 

39,070 

28,009

364,548

18,268 

13,944 

24,225 

22,888 

48,553 

90,550 

62 , 700 

23,871 

10,132

406,507

28,119 

34,196 

5,896

Maximum

3,170 

7,640 

2,500

- 7,640

l~ 1,530 

1,060 

2,800 

1,300 

2,880 

4,510 

3,750 

1,560 

561

7,640

3,220 

2,800 

1,060

Minimum

259

437 

421

195

344 

315 

437 

487 

643 

1,880 

980 

453 

254

254

247 

437 

710

Mean

784 

1,302 

904

99-9

589 

498 

781 

763 

1,566 

3,018 

2,023 

770 

338

1,114

907 

1,140 

842

Per 

square 

mile

5.81 

9.64 

6.70

7.40

4.36 

3.69

5.79 

5.65 

11.6 

22.4 

15.0 

5.70 

2.50

8.25

6.72 

8.44 

6.24

Runoff

Inches

6.69

10.76 

7.72

10T.44

5.03 

3.84 

6.67 

6.31 

13.38 

2?,. 94 

17.27 

6.58 

2.79

111.98

7.75 

9.42 

1.62

Aore-feet

48,190 

77,490 

55,560

723,000

36,230 

27,660 

48,050 

45,400 

96,300 

179,600 

124,400 

47,350 

20,100

806,300

55,770 

67,830 

11,690
SNOHOMISH RIVER BASIN 123

South Fork Skykomish River near Index, Wash.

Location. Water-stage recorder, lat. 47°48'20", long. 121°32'40", in NE^ sec. 29, T. 

VI H., R. 10 E., 600 feet upstream from Sunset Palls, 2 miles upstream from confluence 

with North Fork, and 2 miles southeast of Index. Datum of gage is 574.76 feet above 

mean sea level, datum of 1929. Discharge measurements made about 2 miles upstream 

from gage.

Drainage area.--355 square miles.

Records available.--October 1902 to September 1905, £pril 1911 to September 1950.

Average discharge.--42 years, 2,345 second-feet.

Extremes. Maximum discharge during year, 33,700 second-feet Nov. 27 (gage height, 19.20 

feet); minimum, 560 second-feet Oct. 3, Sept. 23, 24 (gage height, 2.20 feet).

1902-5, 1911-50: Maximum discharge observed, 57,000 second-feet Dec. 18, 1917 

(gage height, 22.6 feet, site then in use); minimum observed, 214 second-feet Oct. 15- 

21, 23, 1925.

Remarks.--Records good. No diversion or regulation.

Revisions (water years).--W 512: 1903-5, 1911-14. W 572: Drainage area. W 792: 1934.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

2,2 560

2.5 710

3.0 990

3.5 1,310

4.0 1,660

5.0 2,460

6.0 3,400

7.0 4,490

8.0 5,740

9.0 7,150

10.0 8,740

12.0 12,600

14.0 17,600

16.o 23,4OO

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

630 

600 

570 

1,250 

2,280

2,280 

1,730 

1,420 

4,230 

4,070

3,940 

3,820 

2,820 

2,200 

2,460

2,200 

1,800 

1,590 

1,420 

1,240

1,140 

1,080 

1,020 

990 

960

930 

1,080 

10, 100 

5,080 

3,160 

2,370

Nov.

2,000 

1,730 

1,560 

1,420 

1,280

1,170 

1,110 

1,080 

1,080 

1,050

1,410 

3,930 

7,450 

6,570 

4,260

3,100 

2,550 

2,200 

2,000 

1,760

1,590 

1,660 

2,640 

5,530 

6,570

9,250 

24,200 

10, 900 

6,850 

5,220

Dec.

6,020 

9,710 

5,740 

4,260 

3,500

2,910 

2,460 

2,200 

2,04O 

1,840

1,660 

1,560 

1,450 

1,340 

1,340

1,280 

1,200 

1,170 

1,080

1,020

1,020 

1,340 

2,120 

2,120 

1,800

1,880 

5,430 

11,300 

6,510 

4,150 

3,000

Jan.

2,280 

1,880 

1,620 

1,480 

1,340

1,310 

1,200 

1,110 

1,050

1,020

960 

930 

848 

792 

820

820 

792 

792 

930 

3,910

7,460 

7,480 

4,680 

3,110 

2,280

2,000 

1,800 

1,590 

1,420 

1,310 

1,200

Feb.

1,170 

1,140 

1,110 

1,080 

1,020

960 

902 

930 

875 

848

848 

848 

1,080 

1,240 

1,730

2,640 

2,370 

2,000 

1,920 

1,730

1,620 

1,920 

2,250 

4,780 

4,490

4,970 

3,880 

2,820

u _*v. SecondMonth foot-days

Octc 

Nove 

Dece

CE

Jam] 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augvj 

Sept

WE

ilendar year 194J

h . . . ................... .

ember .....................

70,460 

23,120 

94,450

29,662

60.214 

53,171 

97,050 

83,300 

41,960 

38,990 

52,720 

54,480 

23,430

iter year 1949-50 .......... 1,193,345

Peak discharge (base, 10,000 sec. -ft.). 

sec. -ft.; Dec. 2 (3 a.m.) 13,000 sec. -ft.;

Mar

2,280 

2,120 

6,090 

15,200 

7,820

5,480 

4,404 

3,200 

2,730 

2,370

2,040 

1,840 

1,700 

1,560 

1,520

1,800 

3,900 

4,260 

3,820 

3,100

2,550 

2,370 

2,120 

1,840 

1,730

1, 620 

1,700 

1,620 

1,520 

1,520 

1,590

Maximum

10,100 

24,200 

11,300

24,200

7,480 

4,970 

15,200 

5,740 

8,080 

11,500 

9,420 

4,160 

2,000

24,200

Apr.

3,640 

3,200 

2,550 

2, 120 

2,040

2,040 

1,920 

1,800 

1,700 

1,620

1,700 

2,520 

3,200 

2,820 

3,520

5,220 

5,740 

4,150 

3,500 

3,600

3,710 

3,300 

2,910 

2,460 

2,280

2,120 

2,000 

1,880 

1,920 

2,120

May

2,280 

2,280 

2,280 

2,200 

2,370

2,280 

2,120 

2,120 

2,280 

2,460

3,770 

6,290 

7,600 

7,450 

6,710

6,150 

6,010 

4,970 

4,150 

3,820

4,380 

5,610 

4,850 

4,370 

4,850

6,150 

8,080 

6,850 

6,010 

5,610 

5,610

Minimum

570 

1,050 

1,020

406

792 

848 

1,520 

1,620 

2,120 

4,970 

2,200 

930 

570

570

June

6,430

7,000 

7,760 

9,080 

8,570

6,290 

5,220 

4,970 

4,970 

6,150

8,080 

8,910 

8,400 

7,450 

7,150

9,030 

11,100 

9,420 

10, 500 

11,500

10,500 

8,400 

8,740 

6,570 

5,350

5,740 

6,710 

8,400 

10, 300 

10,300

Mean

2,273 

4,104 

3,047

2,821

1,942 

1,899 

3,131 

2,777 

4,579 

7,966 

4,926 

1,757 

781

3,269

July

9,420 

8,240 

7,760 

8,080 

7,920

7,300 

6,570 

5,740 

5,480 

4,850

4,040 

4,150 

4,730 

4,850 

4,370

3,820 

4,040 

4,370 

5,090 

4,370

4,150 

4,260 

4,260 

4,150 

3,820

3,500 

3,000 

2,910 

2,820 

2,460 

2,200

Per 

square 

mile

6.40 

11.6 

8.58

7.95

5.47 

5.35 

8.82

iz!9

22.4 

13.9 

4.95 

2.20

9.21

Aug.

2,280 

2,280 

2,040 

1,800 

1,700

1,660 

1,700 

1,560 

1,520 

1,450

1,420 

1,380 

1,340 

1,280 

3,960

4,160 

2,460 

1,910 

1,660 

1,560

1,450 

1,340 

1,880 

2,120 

1,700

1,420 

1,280 

1,170 

1,080 

990 

930

Sept.

902 

875 

875 

875 

820

792 

738 

710 

710 

685

685 

660 

660 

635 

635

635 

610 

600 

595 

585

580 

575 

570 

575

848

2,000 

1,310 

1,050 

875 

765

Runoff

Inihes

7.38 

12.90 

9.89

107.87

6.31 

5.57 

10.17 

8.73 

14.87 

25.04 

16.00 

5.71 

2.45

125.02

Acre-feet

139,800 

244,200 

187,300

2,042,000

119,400 

105,500 

192,500 

165,200 

281,600 

474,000 

302,900 

108, 100 

46,470

2,367,000

3ct. 28 (12 m.) 15.200 sec. -ft.'; Nov. 27 (7 a.m.) 33,700 

5ec. 28 (5:30 a.m.) 12,800 sec. -ft.; Mar. 4 (4:30 a.m.)
124 SNOHOMISH RIVER BASIN

Skykomish River near Gold Bar, Wash.

Drainage area.--535 square miles.

Records available.--September 1928 to September 1950.

Average discharge. 22 years, 3,738 second-feet.

Extremes.--Max ium discharge during year, 56,500 second-feet Nov. 27 (gage height, 17.5 

rest) , from rating curve extended above 33,000 second-feet; minimum, 822 second-feet 

Sept. 24.

1928-50: 'Maximum discharge, 79,000 second-feet Dec. 21, 1933 (gage height, 21.3 

feet); minimum, 382 second-feet Oct. 9, 1938 (gage height, 2.78 feet).

Remarks. Records excellent except those above 8,000 second-feet, which are good, and

tnose for periods of no gage-height record, which are poor. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,160 

1,080 

1,010 

2,440 

4,070

3,900 

3,000 

2,430 

7,070 

6,510

7,510 

6,510 

4,610 

3,640 

4,250

3,640 

3,000 

2,640 

2,300 

2,100

1,970 

1,850 

1,730 

1,670 

1,610

1,610 

1,910 

17,100 

7,770 

4,800 

3,730

Nov.

3,080 

2,710 

2,430 

2,230 

2,040

1,910 

1,790 

1,730 

1,790 

1,730

2,430 

6,690 

13,300 

11,300 

6,750

4,800 

3,900 

3,400 

3,080 

2,780

2,500 

2,780 

4,520 

9,640

11,600

16,900 

38,700 

16,500 

10,700 

8,050

Dec.

9,690 

15,700 

9,200 

6,750 

5,610

4,800 

4,160 

3,730 

3,560 

3,240

2,860 

2,710 

2,570 

2,430

2,500

2,430 

2,360 

2,230 

2,100 

1,970

1,970 

2,430 

3,730 

3,820 

3,320

3,400 

9,520 

19,700 

11,600 

7,250 

5,290

Jan.

4,400 

3,780 

3,400 

3,200 

3,300

3,000 

3,100 

2,880 

2,700 

2,500

2,300 

2,200 

2,100 

1,980 

1,900

1,830 

1,790 

1,710 

1,890 

2,300

8,600 

12,000 

9,000 

5,400 

4,300

3,600 

3,000 

2,650 

2,350 

2,270 

2,180

Month

Octc 

Move 

Dece

Ca

Jami 

Febr 

Marc 

Apr! 

May 

June 

Julj 

Augi, 

Sept

Wa

lendar year 1949

ember .....................

ter year 1949-50 ..........

Feb.

2,040 

1,950 

1,900 

1,850 

1,800

1,740 

1,700 

1,670 

1,640 

1,620

1,600 

1,600 

2,500 

4,000 

5,200

6,000 

4,900 

4,000 

3,300 

2,930

2,710 

3,240 

3,820 

7,510 

7,510

8,330 

6,510 

4,610

Secondroot-days

118,620 

201,760 

162,630

1,691,869

107,610 

98,180 

155,920 

128,670 

212,810 

356,880 

237,800 

88,210 

38,215

1,907,305

Mar.

3,730 

3,400 

11,100 

24,500 

12,200

8,610 

6,270 

5,090 

4,340 

3,820

3,320 

3,000 

2,710 

2,570 

2,430

2,860 

5,830 

6,510 

6,050 

4,900

4,070 

3,730 

3,320 

3,000 

2,860

2,640 

2,780 

2,710 

2,500 

2,500 

2,570

Maximum

17,100 

38,700 

19,700

38,700

12,000 

8,330 

24,500 

9,200 

11,900 

17,300 

14,400 

6,400 

3,400

38.70C

Apr.

5,290 

4,990 

3,980 

3,400 

3,240

3,240 

3,000 

2,860 

2,710 

2,570

2,640 

3,820 

4,900 

4,340 

5,190

8,050 

9,200 

6,510 

5,290 

5,500

5,500 

4,990 

4,430 

3,820 

3,560

3,240 

3,160 

2,930 

3,000 

3,320

May

3,480 

3,640 

3,560 

3,480 

3,730

3,480 

3,240 

3,240 

3,480 

3,900

5,830 

9,800 

11,600 

11,300 

10,100

9,200 

8,900 

7,250 

6,270

5,500

6,270 

8,050 

6,990 

6,510 

7,250

9,200 

11,900 

10,100 

8,900 

8,330 

8,330

Minimum

1,010 

1,730 

1,970

840

1,710 

1,600 

2,430 

2,570 

3,240 

6,990 

3,640 

1,560 

830

830

June

9,500 

10,700 

11,300 

13,600 

12,600

9,200 

7,510 

6,990 

7,250 

9,200

12,200 

13,300 

12,200 

11,000 

10,700

13,600 

16,500 

14,000 

15,400 

17,300

15,400 

12,600 

13,300 

10,100 

8,330

8,900 

10,400 

13,000 

15,400 

15,400

Mean

3,826 

6,725 

5,246

4,635

3,471 

3,506 

5,030 

4,289 

6,865 

11,900 

7,671 

2,845 

1,274

1 5,225

July

14,400 

12,600 

11,900 

12,600 

12,200

11,300 

10,100 

8,900 

8,330 

7,510

6,270 

6,27C 

7, SIC 

7, SIC 

6,750

5,830 

6,510 

6,750 

8,050 

6,750

6,510 

6,750 

6,750 

6,510 

6,270

5,500 

4,80O 

4,610 

4,520 

3,900 

3,640

Per

square 

mile

7.15 

12.6 

9.81

8.66

6.49 

6.55 

9.40 

8.02 

12.8 

22.2 

14.3 

5.32 

2.38

9.77

Aug.

3,730 

3,730 

3,320 

2,860 

2,710

2,640 

2,710 

2,500 

2,430 

2,360

2,360 

2,300 

2,230 

2,100 

6,400

6,270 

3,820 

3,080 

2,710 

2,500

2,360 

2,230 

3,160 

3,480 

2,710

2,300 

2,160 

1,970 

1,790 

1,730 

1,560

Sept.

1,500 

1,500 

1,500 

1,440 

1,380

1,290 

1,230 

1,160 

1,120 

1,100

1,070 

1,040 

1,020 

990 

962

953 

935 

899 

882- 

864

856 

848 

830 

856 

1,440

3,400 

2,360 

1,910 

1,560 

1,320

Runoff

Inches

8.25 

14.03 

11.31

117.62

7.48 

6.82 

10.84 

8.94 

14.79 

24.81 

16.53 

6.13 

2.66

13?. 59

Peak discharge (base, 19,000 sec. -ft. ) . --Oct. 28 (10 a.m.) 26,000 sec. -ft.; Nov. 27 (5

Acre-feet

235,300 

400,200 

322,600

3,356,000

213,400 

194,700 

309,300 

255,200 

422,100 

707,900 

471,700 

175,000 

75,800

3,783,000

a.m. )

56,Sod sec.-ft.; t>ec. 2 (3:50 a.m.) 21,000 sec.-ft.; Dec. 28 (6:30 a.m.) 21,800 sec.-ft.; Mar. 

(4:15 a.m.) 32,500 sec.-ft.

Note.--No gage-height record Jan. 1 to Feb. 19; discharge computed on basis of records for South 

Fork Skykomish River near Index.
SNOHOMISH RIVER BASIN IBS

Snohomish River at Snohomish, Wash.

Location. Water-stage recorder, lat. 47°54'32", long. 122°06'00", in SEv sec. 13, T. 28 

N., H. 5 E., on downstream end of drawrest of bridge No. 205 on State Highway 1A in 

Snohomish. Auxiliary water-stage recorder at county road trestle over railroad tracks, 

2 miles west of Snohomish and 2} miles downstream from base gage. Datum of each gage 

is 10.00 feet below mean sea level, datum of 1929.

Drainage area.--1,700 square miles.

Records available.--February 1941 to September 1950 (high-water discharges only). Highwater elevations prior to 1932 and high-water profiles on flood peaks since that time 

are available at the Seattle office of Corps of Engineers.

Extremes.--Maximum discharge during year not determined, occurred Nov. 27 during period 

or no auxiliary gage-height record (gage height, 27.50 feet, possibly backwater from 

tide).

1941-50: Maximum discharge, that of Nov. 27, 1949-

Maximum stage known, 35 feet at base gage and 31 feet at auxiliary gage is 1906, from 

flood profile furnished by Corps of Engineers.

at stages for which discharges are published.

Revisions (water years).--W 1152:

Discharge, In second-feet,water year October 1943 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot

_

_

_

11,300

13 , 200

10,300

_

11,100

22,600

17,400

19,000

14,100

10,500

-

.

_

_

_

-

_

_

_

_

-

.

10,000

33,000

25,000

16,500

11,000

Nov.

.

_

_

-

.

-

-

_

-

10,000

13 , 300

32,200

35,600

27,000

16 , 800

12,700

10,700

_

-

_

_

10,600

15,200

27,000

50,000

65,000

48,000

33,100

23,100

-

Dec.

20,700

34,200

27,900

13,800

15,800

14,200

11,900

10,300

_

-

_

-

_

-

.

_

_

_

-

_

13,000

18,500

14,800"

13,700

19,100

45 , 600

45 , 000

32,500

22,300

Jan.

16,300

13,100

11,300

10,000

-

10,200

_

_

-

_

_

_

-

.

_

_

10,000

20,000

40,600

46,700

38,600

26,900

16 , 100

12,000

10,000

_

_

_

-

Feb.

_

_

_

-

_

_

_

-

_

-

12,000

18,500

19 , 100

18,800

15 , 100

14,300

12,700

11,200

13,700

15,900

E8,700

31,600

35,100

33,100

24,300

_

-

Mar.

17,600

14,300

17,000

51,100

50,000

45 , 400

38,200

25,400

19,200

15,500

13,300

11,400

_

-

17,700

26,700

24,800

21,900

17,500

15,200

13,400

11,700

10,900

10,000

10,300

10,600

10,200

_

-

Apr.

14,600

18,100

15,400

13,000

11,800

11,300

10,300

,

_

-

11,300

16,200

15,000

14,400

23,700

30,500

23,900

17,900

16 , 400

16,500

15,100

14,000

12,400

11,200

10,200

10,300

_

_

10,000

May

10,100

11,000

10,700

11,100

12,200

10,600

_

_

9,950

12,000

18,000

24,300

24,500

22,200

20 , 200

19 , 400

18,500

15,500

14,000

13,600

16,600

16,800

14,800

15,200

18,200

23,000

25,100

20,300

19,000

17,800

June

18,600

21,200

22,900

26,600

27,400

21,600

16,500

15,200

15,100

17,300

July

28,100

25,600

22,700

22,600

23,000

21.400

19,100

17,000

15,400

15,000

22,800 12,500

26,100 11,700

25,300 12,900

22,8001 14.000

21,000

22,800

30,800

29,200

28,200

31,800

31,800

26,000

31,000

26,400

19,200

17,700

19,300

22,500

27,500

29,400

13,100

11,600

11,300

11,500

13,600

15,200

12,800

12,400

12,400

Aug.

_

_

_

-

-

-

_

-

_

_

_

-

18,600

12,600

_

_

-

_

_

12,000

11,800

10,900

10,200

_

_

_

-

_

_

_

-

Sept.

Feak discharge (base, 40,000 aec.-ft.). Nov. 27 (4 p.m.) (discharge unknown); De-:. 28 (8 p.m.) 

3,100 sec.-ftTj Jan. 2Z (ll a.m.) 46,700 aeo.-ft.; Mar. 4 (12:30 p.m.) 58,500 sec.-ft. 

Note. Fall undetermined Oct. 27-31, Nov. 11, 25-28, Jan. 19, 20, 25-'27; no gage height record at 

either base or auxiliary gage; discharge computed on basis of records for nearby streams.
126 SNOHOMISH RIVER BASIN

Wallace River at Gold Bar, Wash.

Location.--Water-stage recorder, lat. 47°51<50", long. 12l"41'45", in NEjj s = c . 6, T. 27 

II., K. 9 E. , at county road crossing, a quarter of a mile north of Gold Bar and li 

miles upstream from Olney Creek.

Drainage area.--19.8 square miles.

Records available.--December 1928 to September 1933, July 1946 to September 1950.

Extremes.--Maximum discharge during year, 1,500 second-feet Msr. 4 (gage height, 7.98 

1'eet); minimum, 11 second-feet Sept. 21-24 (gage height, 3.85 feet).

1923-33, 1946-50: Maximum discharge observed, 2,590 second-feet Feb. 26, 1932 

(gage-height, 8.00 feet, datum then in use); minimum observed, 9.ti second-feet Aug. 2/ 

Sept. 3-5, 1930 (gage height, 0.32 foot, datum then in use).

Remarks.--Records fair except those for periods of shifting control or no gage-height rec 

ordT which are poor. No known diversion or regulation.

RevicJone. W 1062: Drainage area.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

45 

37 

33 

261 

361

258 

162 

120 

550 

400

420

320 

200 

180 

300

200 

120 

100 

85 

75

70 

65 

60 

55 

52

55 

100 

600 

550 

200 

120

Nov.

95 

80 

70 

65 

60

58 

56 

55 

58 

62

132

468 

1,080 

608 

274

177 

134 

111 

97 

86

79 

140 

149 

357 

675

413 

506 

264 

232 

226

Dec.

322 

433 

216 

172 

160

143 

126 

114 

111 

100

93 

90 

86 

86 

91

96 

94 

90 

84 

82

86 

175 

264 

229 

188

167 

322 

900 

558 

326 

235

Jan.

182 

152 

139 

136 

134

128 

112 

96 

89 

86

83

78 

75 

70 

68

66 

64 

62 

70 

608

925 

700 

357 

254 

190

160 

135 

120 

105 

95 

85

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Maro 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

mber . ....................

lendar year 1949 

a.ry

ember . . ........ .........

ter year 1949.50 ..........

Feb

82

78 

75 

78 

80

85

85

100 

95

95 

95 

114 

143 

241

361

261 

213 

213 

177

172 

124 

372 

900 

630

750 

390 

238

Second 

foot-days

6,154 

6,867 

6,239

58,583

5,624 

6,342 

7,452 

5,875 

7,565 

10,934 

4,961 

2,281 

1,264

71,558

Mar.

180 

160 

764 

1,180 

675

433 

288

219 

180 

155

132 

120 

109 

100 

93

112 

375 

326 

274 

213

182 

167 

139 

124 

114

109 

106 

106 

100 

106 

111

Maximum

600 

1,080 

900

1,080

925 

900 

1,180 

506 

421 

652 

312 

434 

350

1,180

Apr.

261 

202

164 

141 

139

141 

126 

118 

116

107

106 

216 

244 

193 

308

448 

506 

312 

248 

258

241 

199 

174 

148 

141

130 

128 

118 

116 

126

May

146 

164 

146 

148 

180

160 

141 

134 

132

152

267 

421 

402 

336 

277

271 

284 

219 

213 

185

235 

267 

216 

210 

264

354 

421 

312 

329 

291 

288

Minimum

33 

55 

82

19

62 

75 

93 

106 

132 

210 

89 

37 

11

11

June

340 

357 

394 

425

354

251 

210 

232 

251 

343

406 

368 

312 

298 

315

440 

456 

375 

433 

425

347 

514 

652 

357 

274

294 

347 

390 

409 

365

Mean

199 

229 

201

161

181 

226 

240 

196 

244 

364 

160 

73.6 

42.1

196

July Aug.

312 

277 

271 

271

244

216 

177 

155 

180 

136

116 

141 

167 

143 

120

100 

122 

132 

232 

152

139 

128 

134 

120 

112

97 

89 

111 

170 

107 

90

Per 

square 

mile

10.1 

11.6 

10.2

8.13

9.14 

11.4 

12.1 

9.90 

12.3 

18.4 

8.08 

3.72 

2.13

9.90

90 

84 

62

49

49

52 

69 

57

46 

41

41 

39 

37 

37 

434

143 

82 

63 

52 

47

44 

42 

83 

152 

86

64 

57 

51 

46 

43 

39

R

Inches

11.56 

12.90 

11.72

110.04

10.56 

11.91 

14.00 

11.03 

14.21 

20.54 

9.32 

4.28 

2.37

134.40

Sept

37 

34 

32 

32

29

30 

25 

23 

22 

21

20 

19 

17 

16

16

14 

13 

13 

13 

12

11 

11 

11 

19 

136

350 

122 

72 

51 

43

inoff

Acre-feet

12,210 

13,620 

12,370

116,200

11,160 

12,580 

14,780 

11,650 

15,000 

21,690 

9,840 

4,520 

2,510

141,900

Peak discharge (base, 1,350 sec. -ft.). Oct. 28 (7 a.m.) 1,440 sec. -ft. j Nov. 13 (7 a.m.) 1,360

see.-ft.; Mar. 4 (l a.m.) 1,500 see.-ft.

Note. No gage-height record Oct. 9 to Nov. '. Jan. 14-19, Jan. 25 to Feb. 12; discharge computed 

on basis of weather records and records for nearby streams. Shifting-control method used Oct. 1-8, 

Nov. 10 to Mar. 6, May 12 to Sept. 28.
SNOHOMISH RWKR BASIN 127 

Olney Creek near Gold Bar, Wash.

Location. Water-stage recorder, lat. 47°56'40", long. 121°42'30", in SW^ s<?c. 6, T. 28 

N77R. 9 E., 5j miles north of Gold Bar and 6j miles upstream from mouth.

Drainage area.--7.9 square miles.

Records available.--July 1946 to November 1950 (discontinued).

Extremes.--Maximum discharge during period October 1949 to November 1950, 1,070 second-feet 

DcT7^9, 1949 (gage height, 4.54 feet), from rating curve extended above 310 secondleet on basis of slope-area determination at peak flow of flood of Feb. 9, 1951, at 

gage height 6.10 feet); minimum, 6.9 second-feet Sept. 22, 23, 24 (gage height, 1.33

OA916" 5? : Maxlmum discharge, 4,020 second-feet (revised) Oct. 25, 1946 (gage height, 

?A^n , eet) > from rating curve extended as above; minimum, 5.6 second-feet Aug. 26-29, ' 

1947 (gage height, 1.28 feet).

Revisions.--The maximum discharge for the water years 1947-49 have besn revised 

as snown in the following table. They supersede those published in the water-supply 

pacers Indicated. '

Water-Supply 

Paper

1092........

1122. ....... 

1152........

Water 

year

1947

1948 

1949

Date

Oct. 25

Oct. 2 

Nov. 23

Gage height 

(feet)

6.30

4.55 

4.50

Discharge 

(second- feet)

4,020

1,080 

1,030

Remarks.--Records good except those for periods of no gage-height record, and those above 

32U second-feet, which are fair. No diversion or regulation.

Revised peak discharges.--1947-48: Oct. 2 (2:30 p.m.) 1,080 sec.-ft.; Oct. 19 (12:30 a.m.) 

sea sec.-rt.; NOV. v (6 p.m.) 916 sec.-ft.

1948-49: Nov. 23 (6:30 p.m.) 1,030 sec.-ft.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

24

18.5

17

220

309

165

93

66

309

111

142

107

64

50

112

59

46

37

32

28

24

23

19.5

17.5

16.5

29

63

262

69

46

36

Nov.

30

26

22

19

17.5

16

15

24

34

40

115

298

605

293

125

80

62

53

46

39

34

72

62

115

277

172

230

107

90

102

Dec.

170

200

109

83

97

87

68

59

55

46

41

39

40

44

56

49

44

39

35

33

35

263

277

154

102

92

462

535

271

131

79

Jan.

60

48

40

38

34

32

29

26

24

21

18.5

15.5

16.5

16.5

15.5

15

15

58

318

438

343

147

79

59

51

42

32

30

a29

a28

Feb.

a26

a26

a27

31

35

48

34

32

28

26

26

30

93

95

187

216

113

95

104

70

68

184

287

490

286

318

151

89

_

_

-

Mar.

69

72

426

462

326

192

107

80

66

56

48

42

38

35

37

92

358

192

165

100

79

73

58

51

47

45

48

45

41

58

84

Apr.

216

129

80

68

73

77

61

58

61

56

62

194

165

102

250

318

241

131

107

121

109

82

67

60

61

53

54

51

54

59

-

May

72

86

72

86

123

90

76

69

68

76

121

187

163

131

111

104

121

89

113

93

104

100

75

74

93

136

ItfO

105

136

97

95

June

117

125

149

158

113

76

69

111

95

125

149

127

105

105

111

165

165

125

149

145

109

202

318

149

113

113

125

145

145

125

-

July

107

93

97

97

86

73

66

61

76

54

50

59

66

55

45

44

51

53

105

59

57

54

50

46

37

32

31

63

72

41

34

Aug.

30

25

21

19

17.5

26

27

19

16

15

14

12.5

11.5

13.5

258

74

43

32

27

23

20

18

52

80

39

29

24

21

19.5

18

17

Sept.

15.5

15

14.5

14.5

13.5

12.5

12

11.5

10

10

9.4

9.8

9.4

9.4

9.0

8.7

8.4

8.1

7.8

7.8

7.5

7.2

7.2

26 13 1

286

77

50

36

30

"
128 SNOHOMISH RIVER BASIN

Ischarge, in second-feet, of Olney Creek near Gold Bar, Wash., 1949-50--Continued

1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

24

21

19

29

246

192

117

221

138

332

117

76

59

52

42

36

35

95

111

70

53

44

38

42

98

89

104

154

104

136

111

Nov.

205

205

302

167

121

90

79

61

50

44

39

35

32

30

28

65

44

37

32

76

149

219

196

336

247

158

277

131

87

72

-

Dec. Jan.

j

Feb. Mar. Apr. May

i

June July Aug. Sept.

Peak discharge (base, 700 sec.-ft.).--Nov. 24 (l a.m.) 916 sec.-ft.

Monthly discharge, in second-feet, 1949-50

Month

Mav

September .....................

Water year 1949-50 ... ......

October 1950 ...............

Secondfoot-days

2,615 

3,220.5 

3,795

28,343.3

2,140.5 

3,215 

3,592 

3,220 

3,246 

4,028 

1,914 

1,061.5 

874.7

32,922.2

3,005 

3,614

Maximum

309 

605 

535

605

438 

490 

462 

318 

187 

318 

107 

258 

286

605

332

336

Minimum

16.5 

15 

33

7.8

15

26 

35 

51 

68 

69 

31 

11.5 

7. 2

7.2

19 

28

Mean

84.4 

107 

122

77.7

69.0 

115 

116 

107 

105 

134 

61.7 

34.2 

29.2

90.2

96.9 

120

Per 

square 

mile

10.7 

13.5 

15.4

9.84

8.73 

14.6 

14.7 

13.5 

13.3 

17.0 

7.81 

4.33 

3.70

11.4

12.3 

15.2

Runoff

Inches

12.31 

15.16 

17.87

133.44

10.08 

15.13 

16.91 

15.16 

15.28 

18.96 

9.01 

5.00 

4.12

154.99

14.15 

17.01.

Acre-feet

5,190 

6,390 

7,530

56,230

4,250 

6,380 

7,120 

6,390 

6,440 

7,990 

3,800 

2,110 

1,730

65,320

5,960 

7,170
SNOHOMISH RIVER BASIN L ^

Sultan River near Startup, Wash.

Location.--Water-stage recorder, lat. 47°58'30", long. 121°46'30", in NEij sec. 28, T. 29 

K., K. 8 E. , l|- miles upstream from intake of Everett water-supply system and 7j miles 

north of Startup.

Drainage area.--75 square miles.

Kecords available.--May 1934 to September 1950.

Average discharge.--16 years, 753 second-feet.

Extremes.--Maximum discharge during year, 18,200 second-feet Mar. 4 (gage height, 14.32 

FeeTT, from rating curve extended above 2,900 second-feet on basis of slope-area determination of peak flow of flood of Feb. 9, 1951, at gage height 17.22 feet; minimum, 126 

second-feet Sept. 24 (gage height, 3.84 feet).

1934-50: Maximum discharge, 29,400 second-feet (revised) Dec. 3, 1943 (gage height, 

16.4 feet), from rating curve extended as explained above; minimum, 48 second-feet Sept. 

25, 27, 29, 30, 1942; minimum gage height, 3.32 feet Sept. 22, 23, 24, 1938.

Revisions.--The maximum discharge for many water years have been revised, as shown 

in tne following table. They supersede those published in the water-supply papers 

indicated.

Water-Supply 

Paper

792. ........

812. ........

832.........

862.... .....

882. ........

902. ........

932. ........

962.... .....

982.... .....

1012. .......

1042. .......

1122... .....

1152. .......

Water 

year

1935

1936

1937

1938

1939

1941

1943

1944

1945

1948

1949

Date

fey 16

Apr. 17

May 28

Oct. 31

Oct. 19

Nov. 23

Gage height 

(feet)

10.42

13.40

14.48

12.6

11.56

13.44

12.16

Discharge 

(second-feet)

27 000

19,000

7,100

19,000

10.400

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

those for periods of no gage-height record, which are poor. No diversion or regulation.

Revisions.--Revised figures of discharge for high-water periods in the water years 1935, 

1937-39, 1941, 1943-49 are given herewith. They supersede those published in WaterSupply Papers 792, 832, 862, 882, 932, 982, 1012, 1042, 1062, 1092, 1122, and 1152.

Day 

(water year)

1934-35

Oct. 24......

25......

Nov. 5...... 

Dec. 21......

1936-37

Dec. 6. .....

1937-38

Nov. 8......

27...... 

Dec. 28. ..... 

Apr. 17......

18......

1938-39

Dec. 31......

Jan. 1. .....

May 28 ......

1940-41

Oct. 10......

Discharge 

(second-feet)

9,660

7,620

9,030 

5,580

6,860

9,550

6,410 

7,100 

12,500

8,420

6,410

6,620

5,670

5,400

Revised peak discharges. 1941-4

sec. -ft.; June 15 (9:3O a.m.) 7,1O

Day 

(water year)

1942-43

Oct. 31.....

Nov. 23.....

1943-44 

Dec. 2.....

3. ....

1944-45

Dec. 4. ....

Jan. 7. ....

Feb. 7.....

1945-46 

Oct. 24.....

1946-47

Oct. 24.....

1947-48

Oct. 2.....

19.. ..

1948-49

Nov. £3.....

Discharge 

(second-feet)

8,460

8,610

6,460

12 , 900

3,150

13,100

6,870

6,120

6,840

5,720

5,860

4,110

2: Dec. 19 (12:10 a.m.) 6,600 

0 sec. -ft.

1942-43: Oct. 31 (lO a.m.) 19,000 sec. -ft.; Nov. 23 (10 a.m.)

12,000 sec. -ft. -.

1943-44: Dec. 3 (4 a.m.) 29,400 sec.-ft.; Sept. 16 (2:30 a.m.) 

6,600 sec.-ft. (this peak is a substitute for peak originally 

published for Sept. 20).

1944-45: Dec. 4 (9:50 p.m.) 10,100 sec.-ft.,- Dec. 6 (1 a.m.) 

12,300 sec.-ft.i Jan. 7 (7:30 a.m.) 20,000 sec.-ft.; Jan. 12 

(11:30 a.m.) 7.100 sec.-ft.; Jan. 13 (10 a.m.) 6,850 sec.-ft.; 

Feb. 7 (6 p.m.) 18,600 sec.-ft.

1945-46: Dec. 28 (5 p.m.) 6,850 sec.-ft.; June 14 (7:30 p.m.) 

7,600 sec.-ft.

1947-48: Oct. 2 (9 a.m.) 9,800 sec.-ft.; Oct. 19 (1:30 a.m.) 

14,600 sec.-ft.; Nov. 8 (12:30 a.m.) 6,600 sec. ft.

1948-49: Oct. 7 (9 a.m.) 6,200 sec.-ft. (not previously published); Nov. 23 (7 p.m.) 10,400 sec.-ft.
130 SNOHOMISH RIVER BASIN

Revised figures >f discharge of Sultan Rlvs 

1943-49-

r near Startup, 

-Continued

Wash., 1935, 1937-39, 1941,

Month

Water year 1934-35. ......

December 1936. .............

Water year 1936-37...... .

Calendar year 1937. ......

April 1938. ................

Water year 1937-38. ......

Calendar year 1938. ......

Calendar year 1939. ......

Calendar year 1940. ...... 

Water year 1940-41. .....:

Water year 1942-43. ......

December 1943. .............

Water year 1943-44. ......

Calendar year 1944. ......

Water year 1944-45. ......

Water year 1945-46. ......

rfater year 1946-47 .......

Water year 1947-48. ......

Calendar year 1948. ...... 

Water year 1948-49. ......

Secondfoot-days

315,539

48,778

237,254

291,811

263,218

246,235

43 923

300,950

217,037 

195,921

256,951

212,827

214,813

264,082

314,028

321,099

330,965

284,129 

272,385

Maximum

12,000

6,860

6,860

9,550

12,500

12,500

6,620

5,400 

5.400

8,610

12,900

4.880

13,100

8,000

6,840

5,860

4,110 

4,110

Minimum

95

96

90

80

55

55

87

54 

51

69

51

51

232

62

102

88

137

177 

107

Mean

864

1,573

650

799

721

675

825

593 

537

704

581

587

724

860

880

L_ 904

776 

746

Per square 

mile

11.5

21.0

8.67

10.7

9.61

9.00

11.0

7.91 

7.16

9.39

7.75

7.83

9.65

11.5

11.7

12.1

10.3 

9.95

Runcff in 

irches

156.49

24.19

117.56

144.64

130.55

122.07

149.23

13 95

1C7.62 

97.15

127.43

105.54

106.52

23 75

13 25

130.96

155.72

159.21

164.11

140.89 

135.08

Runoff In 

acre-feet

625,800

96,750

470.600

578,800

522,100

488,400

596,900

430 , 500 

388,600

509,600

422,200

426,100

523,800

622,900

636,900

656,400

563,500 

540,300

Rating table, water year 1949-50, except periods of shifting c 

(gage height, in feet, and discharge, in second-feet)

3.8 

4.0 

4.5 

5.0 

5.5

120

149

245

380

560

6.0 

6.5 

7.0 

7.5 

8.0

770

1,030

1,360

1,740

2,200

9.0

10.0

11.0

12.3

3,400

5,000

7,100

10,700
SNOHOMISH RIVER BASIN 131

Discharge, in second-feet, of Sultan River near Startup, Wash., water year Octcber 1949 

to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

258 

215 

192 

1,420 

1,900

1,400 

895 

640 

3,250 

1,540

2,300 

1,850 

1,030 

745 

1,460

845 

640 

520 

434 

380

338 

320 

298 

278 

265

292 

658 

4,830 

1,220 

720 

540

Nov.

445 

383 

344 

312 

285

262 

241 

282 

335 

338

1,000 

2,600 

5,400 

2,850 

1,360

845 

640 

540 

462 

392

350 

744 

1,020 

1,940 

3,870

4,300 

5,600 

1,860 

1,290 

1,120

Dec.

3,250

4,180 

1,430 

920 

845

720 

580 

480 

445 

389

347 

326 

310 

310 

371

347 

320 

290 

260 

243

245 

870 

1,290 

870 

640

640 

4,080 

9,200 

3,320 

1,540 

895

Jan.

640 

500 

407 

365 

329

305 

280 

252 

238 

Z^5

210 

202 

3190 

also 

a!75

a!70 

al70 

a!70 

aSOO 

3,750

5,400 

3,850 

1,580 

920 

a560

3500 

3450 

3400 

3350 

3320 

a300

Month

Ocjtc 

Nove 

Dece

Cs

Janv 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

'Wa

lendar year 194 

ary

ember .....................

ter year 1949-50 ..........

Feb.

8290 

8275 

a270 

3265 

265

318 

260 

248 

225 

217

236 

270 

520 

580 

1,190

1,740 

1,030 

770 

820 

660

620 

1,060 

1,530 

3,620 

2,400

3,100 

1,700 

1,030

Second 

foot-days

31,673 

41,410 

39,953

320,866

24,188 

25,509 

39,576 

30,750 

40,795 

53,000 

29,130 

16,888 

8,291

381,163

Mar.

770 

660 

2,660 

10,700 

3,100

2,250 

1,320 

970 

795 

680

560 

480 

428 

383 

380

580 

2,350 

1,820 

1,540 

1,060

845 

770 

620 

520 

480

462 

520 

480 

431 

462 

500

Maximum

4,830 

5,600 

9,200

9,200

5,400 

3,620 

10,700 

3,050 

2,350 

2,980 

1,780 

1,820 

1,500

10,700

Apr.

1,350 

1,260 

920 

680 

600

680 

620 

540 

560 

540

500 

955 

1,540 

1,120 

1,660

2,760 

3,050 

1,540 

1,120 

1,290

1,290 

1,030 

845 

700 

660

600 

580 

560 

560 

640

May

720 

920 

795 

770 

1,060

920 

720 

660 

660 

720

1,180 

2,250 

2,350 

2,100 

1,740

1,620 

1,660 

1,360 

1,220 

1,060

1,150 

1,320 

1,120 

1,060 

1,290

1,780 

2,300 

1,700 

1,660 

1,500 

1,430

Minimum

192 

241 

243

107

170 

217 

380 

500 

660 

1,030 

520 

270 

127

127

June

1,700 

1,860 

2,000 

2,250 

1,860

1,290 

1,030 

1,030 

1,120 

1,500

2,000 

1,950 

1,620 

1,500 

1,500

2,050 

2,350 

1,860 

2,100 

2,150

1,820 

2,090 

2,980 

1,700 

1,260

1,290 

1,500 

1,740 

2,000 

1,900

Mean

1,022 

1,380 

1,289

879

780 

911 

1,277 

1,025 

1,316 

1,767 

940 

545 

276

1,044

July

1,780 

1,540 

1,400 

1,460 

1,500

1,290 

1,090 

945 

970 

895

700 

680 

870 

945 

795

640 

700 

820 

1,090 

945

870 

870 

895 

845 

745

680 

580 

660 

770 

640 

520

Per 

square 

mile

13.6 

18.4 

17.2

11.7

10.4 

12.1 

17.0 

13.7 

17.5 

23.6 

12.5 

7.27 

3.68

13.9

Aug.

540 

560 

462 

360 

362

350 

434 

407 

359 

344

332

341 

326 

305 

1,610

1,820 

770 

560 

462 

428

395 

359 

956 

1,150 

700

500 

424 

359 

323 

300 

270

Sept.

255 

248 

245 

238 

219

202 

196 

183

178 

174

170 

167 

163 

159 

152

148 

143 

138 

136 

133

128 

127 

127 

167 

620

1,500 

770 

520 

380 

305

Runoff

Inches

15.71 

20.53 

19.81

159.12

11.99 

12.65 

19.62 

15.25 

20. Z3 

26.28 

14.44 

8.37 

4.11

188.99

Peak discharge (base, 6,000 see. -ft. ). --Oct. 9 (1 p.m.) 7,850 sec. -ft.; Oct. 26 (E a.m.

Acre-feet

62,820 

82,140 

79,250

636,400

47,980 

50 , 600 

78,500 

60,990 

80,920 

105,100 

57,780 

33,500 

16,440

756.000

) 11,300

"a.m.) 7,100 sec.-ft.; Nov. 27 (5 a.m.) 10,700 sec.-ft.; Dec. 2 (1 a.a.) iO,700 

sec.-ft.; Dec. 28 (7 a.m.) 11,300 sec.-ft.; Jsn. Zl (about 1 p.m.) 7,600 see.-ft.; Ksr. 4 (6 a.m.) 

18,200 sec.-ft.

3 Ho gsge-height record; discharge computed on bssis of records for nearby streams.

Note.--Shifting-control method used Dec. 29 to Jan. 12, Jan. 20-24, Feb. 5 to Mar. 5.
132 SNOHOMISH RIVER BASIN

McCoy Creek near Sultan, Wash.

LOG at ion.--Water-stage recorder, lat. 47°49 I 50", long. 121°49 I 40", in NE£ sec. 18, T. 27 

M., H. 8 E., ly miles upstream from mouth and 2-f miles south of Sultan.

Drainage area. 6.0 square miles.

Records available. July 1946 to November 1950 (discontinued).

.Extremes. Maximum discharge during period October 1949 to November 1950, 548 second-feet 

Mar. 4 (gage height, 3.27 feet), from rating curve extended above 150 second-feet; minimum, 1.2 second-feet Sept. 15, 16, 18 (gage height, 0.6S foot).

1946-50: Maximum discharge, 588 second-feet Feb. 17, 1949; maximum gage height, 

that of Mar. 4, 1950; minimum discharge, that of Sept. 15, 16, 18, 1950.

Remarks. Records good except those for periods of shifting control, ice effect, or no 

gage-height record, which are fair. No known diversion or regulation.

Discharge, in second-feet, 1949-50 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.7

4.2

4.3

13.5

40

45

40

29

26

33

29

27

22

19

24

24

20

18

16.5

15

13.5

12.5

11.5

10

9.4

9.0

9.7

19

26

24

18.5

Nov.

13

9.7

8.7

8.4

8.1

7.8

7.5

7.5

8.7

12

23

52

135

114

60

40

31

25

22

19.5

18

18

22

20

27

33

61

50

35

31

Dec.

28

46

40

33

29

26

23

20

19.5

19

16.5

13

9.7

9.7

16

33

35

31

26

22

22

26

62

112

76

66

122

228

*135

90

61

Jan.

44

35

28

24

21

23

28

25

22

21

22

20

17.5

16

15.5

14.5

14.5

a!4

a45

88

342

310

129

66

43

37

29

a22

a20

a!9

a!7

Feb.

a!5

a!6

a!7

a20

a23

b27

b32

44

39

33

30

Mar.

52

40

43

352

228

170

96

64

49

42

35

28 29

40

44

52

67

62

47

42

39

36

40

53

189

192

245

178

*88

_

-

26

23

20

20

36

101

105

80

59

47

37

31

27

24

22

22

21

20

22

Apr.

38

50

44

36

29

26

22

20

18.5

16.5

15.5

21

39

36

33

54

82

61

45

36

32

28

30

26

25

24

28

29

26

23

May

23

22

20

19

26

31

26

24

21

19

18

21

25

23

20

18.5

18

20

18.5

18

16

15.5

15.5

14.5

13.5

15

18

21

17

15.5

14

June

13.5

14

15

16

16.5

18.5

15.5

13.5

13

12.5

14.5

15

14

13

13

12

14

14

13.5

13.5

13

12

13.5

19

15.5

12

10.5

10

9.0

8.4

-

July

6.8

5.8

5.5

4.9

4.3

3.7

3.8

3.4

3.8

4.0

3.5

3.4

3.4

2.9

2.5

2.2

2.2

2.4

4.9

5.8

3.8

3.4

3.0

2.9

2.6

2.6

2.6

3.0

3.2

3.4

3.1

Aug.

2.9

2.8

2.5

2.4

2.4

2.4

2.4

2.2

2.2

2.1

2.1

2.0

1.9

1.9

2.1

5.3

6.0

4.5

3.8

3.2

3.0

2.6

3.2

3.5

3.4

3.4

3.8

3.4

3.0

2.9

2.9

Sept.

2.8

2.6

2.4

2.8

2.6

2.6

2.4

2.2

2.2

2.1

2.0

2.0

2.0

1.9

1.5

1.4

1.5

1.4

1.5

1.5

1.6

1.6

1.6

1.6

2.0

4.2

6.0

6.5

5.1

4.5

-

Peak discharge (base, 150 sec.-ft.) . Nov. 13 (10 p.m.) 162 sec.-ft.! Dec. 27 (12 p.m.) 256 see.- 

ft.j Jan.' 21 (3:30 pTm!) 392 see.-ft.; Feb. 24 (2 p.m.) 234 sec.-ft.j Feb. 26 (6 p.m.) 260 sec.-ft.; 

Mar. 4 (ll a.m.) 548 sec.-ft.

* Winter discharge measurement made on this day.

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

b Stage-discharge relation affected by ice.

Note. Shifting-control method used Oct. 1-13.

1950

Day

1

2

3

4

5

B

7

8

Oct.

4.0

3.8

3.7

3.2

4.0

9.7

11

11

Nov.

51

66

64

58

52

42

37

32

Day

9

10

11

12

13

14

15

16

Oct.

36

51

61

36

26

19

15

13

Nov.

27

24

22

18.5

16.5

15.5

14.5

27

Day

17

18

19

20

21

22

23

24

Oct.

12

13

22

24

21

18

15.5

14.5

Nov.

46

34

27

27

41

54

60

129

Day

25

26

27

28

29

30

31

Oct.

18

41

42

65

76

54

53

Nov.

100

79

120

96

a62

a45

-

a No gage-height record; discharge computed on basis of records for nearby 

streams.

Monthly discharge, in second-feet, 1949-50

Month

October 1949 .................

April .........................

Hay

Water year 1949-50 .........

October 1950 .................

November. .....................

Secondfoot-days

617.3 

927.9 

1,495.4

8,562,9

1,572 

1,738 

1,943 

993.5 

606.5 

407.4 

112.8 

92.2 

76.1

10,582.1

796.4 

1,487

Maximum

45 

135 

228

409

342 

245 

352 

82 

31 

19 

6.8 

6.0 

6.5

352

76 

129

Minimum

4.2 

7.5 

9.7

1.6

14 

15 

20 

15.5 

13.5 

8.4 

2.2 

1.9 

1.4

1.4

3.2

14.5

Mean

19.9 

30.9 

48.2

23.5

50.7 

62.1 

62.7 

33.1 

19.6 

13.6 

3.64 

2.97 

2.54

29.0

25.7 

49.6

Per 

square 

mile

3.32 

5.15 

8.03

3.92

8.45 

10.4 

10.4 

5.52 

3.27 

2.27 

.607 

.495 

.423

4.83

4.28 

8.27

Runoff

Inches

3.83

5.75 

9.27

53-07

9.74 

10.77 

12.04 

6.16 

3.76 

2.53 

.70 

.57 

.47

65.59

4.94 

9.22

Acre-feet

1,220 

1,840 

2,970

16,990

3,120 

3,450 

3,850 

1,970 

1,200 

808 

224 

183 

151

20,990

1,580 

2.550
SNOHOMISH RIVER BAEIN 13 

Woods Creek near Monroe, Wash.

Location.--Water-stage recorder, lat. 47°52'20", long. 121°55'10", in ¥j sec. 33, T. 28 

N., R. 7 E., 200 feet downstream from West Fork and 2j miles northeast of Monroe.

Drainage area.--53 square miles.

Records available.--July 1946 to September 1950.

Extremes.--Maximum discharge during year, 1,710 second-feet Feb. £6 (gage feight, 7.18 

feet); minimum, 15.5 second-feet part of each day Sept. 6-11 (gage height, 2.03 feet). 

1946-50: Maximum discharge, that of Feb. 26, 1950; minimum, 12.5 second-feet Sept. 

6, 1949.

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

Several small farm diversions above station. No regulation.

Rating table, water year 1949-50, except periods of shifting control 

(gage height, in feet, and discharge, in aecond-feet)

2.2 20

2.3 26

2.5 42

2.7 62

3.0 101

3.3 

3.6 

4.0 

4.5 

5.0

147

204

295

444

620

5.5 830

6.0 1,060

6.5 1,310

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

20

20

19

46

107

95

80

54

45

51

45

73

64

51

67

70

61

58

53

50

48

Nov.

53

48

45

42

39

37

36

37

55

61

88

261

620

852

561

356

263

219

192

1S9

151

45 144

43

41

39

39

40

74

93

72

61

1S9

156

202

245

292

263

227

225

-

Dec.

217

317

319

270

243

254

225

198

186

178

158

149

144

139

152

245

256

245

214

190

208

258

344

561

456

424

600

660

561

*506

424

Jan.

353

292

243

217

194

210

243

219

204

214

225

200

176

b!60

b!50

b!35

b!25

bl!5

b!30

314

830

1,310

965

620

a430

328

270

229

bl80

b!55

b!30

Month

October ...... ................

November ......................

December ......... . . .........

Calendar year 1949 .........

January ........ ..............

February ......................

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

April ............ ....... ....

Mav way ..................... .....

June ..........................

July ...................... . .

August .................. .....

September .....................

Water year 1949-50 ........ .

Feb.

b!20

b!20

b!25

134

169

221

256

373

409

362

342

356

561

580

600

*700

542

424

444

379

362

409

424

640

660

1,140

1,260

720

_

-

Secondfoot-days

1,724

6,108

9 301

45,156.5

9,566

13)641

7,660

3, 566

1 392

809

624.5

619.5

67,843

Mar.

489

379

394

785

875

1,040

965

640

456

373

308

261

234

208

192

196

444

660

700

524

409

379

317

278

254

236

249

394

364

330

306

Maximum

107

852

66C

1,160

1,31C

1,26C

1,04C

444

214

34

2£

57

1,31C

Apr

424

394

367

306

263

240

212

192

182

171

161

243

258

225

227

314

444

359

288

247

214

202

245

247

236

219

219

206

186

169

May

167

161

145

139

210

214

194

169

156

144

134

124

114

107

100

97

100

107

108

101

93

86

80

75

68

64

63

64

64

61

57

Minimum

19

36

139

14

115

120

192

161

57

35

21

16

16

June

54

52

49

48

47

46

47

48

46

44

42

40

41

41

42

40

39

39

38

36

35

44

86

72

60

52

46

42

39

37

Mean

55.6

204

124

309

458

440

255

115

46.4

26.1

20.1

20.6

186

July

32

31

30

30

29

28

27

28

30

3C

28

28

25

23

23

22

Aug.

21

20

19.5

19.5

19.5

21

23

21

19.5

19

18.5

18

18

19.5

28

29

23 | 23

22

34

3C

2£

24

2J

2]

21

21

2?

25

2f

24.

22

Per 

square 

mile

1.05

3.85

5.66

2.34

5.83

8.64

8 . 30

4.81

2.17

.875

.492

.379

.389

3.51

21

39.5

19

18.5

18.5

21

20

19.5

19.5

18.5

18.5

18

18

18

Sept.

17

17

17

17.5

17

17

16

16

17

16

17

17

17

17

17

17.5

17.5

17

16

17

17

17

16

21

39

57

39

28

25

23

-

Runoff

Inches

1.21

4.29

6.53

31.69

6.71

9 57

5 .38

.98

.57

.44

.43

47.61

Acre-feet

3,420

12,120

18,450

89,570

18,970

25,450

27,060

15,190

7,070

2,760

1,600

1,240

1,230

134, 600

Peak discharge (base. 800 see.-ft.).--Nov. 14 (2 a.m.) 920 sec.-ft.; Jan. 22 (11 a.m.) 1,310 sec.- 

ft~ Feb. 26 (10:30 p.m.) 1,710 sec.-ft.; Mar. 6 (12 p.m.) 1,110 aec.-ft. 

* Winter discharge measurement made on this day.

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

b Stage-discharge relation affected by ice. 

Note. Shifting-control method used Oct. 7 to Nov. 13, June 23 to Sept. 30.
134 SNOHOMISH RIVER BASIN

Snoqualmie River near Tolt, Wash.

Location.--Water-stage recorder, lat. 47°39'55", long. 121 0 55'30", in sec. f, T. 25 N.,

 K. V E., 100 feet downstream from highway bridge, 1 mile northwest of Tolt, and 2 miles 

downstream from Tolt River. Auxiliary water-stage recorder, lat. 47°39'CO , long. 

121°55'25", in SWij sec. 16, T. 25 N., R. 7 E., at Tolt, three-quarters of a mile downstream from Tolt River and It miles upstream from base gage. Datum of esch gage is at 

mean sea level, unadjusted.

Drainage area.--605 square miles.

Kecords available.--October 1928 to September 1950.

Average discharge. 22 years, 3,673 second-feet.

Extremes.--Maximum discharge during year, 30,100 second-feet Mar. 4 (elevation, 56.16 

reet); minimum, 400 second-feet Oct. 3 (gage height, 43.88 feet); minimum daily, 650 

second-feet Sept. 20.

1929-50: Maximum discharge, 51,000 second-feet Feb. 26, 1932; maximurr elevation 

recorded, 59.9 feet Nov. 13, 1932; minimum discharge, 239 second-feet Aug. 21, 1945, 

but may have been less sometime during period of faulty intake action Sept. 13 or 14, 

1949; minimum daily discharge, 396 second-feet Sept. 24, 1938.

Remarks. Records good. Low flow diverted for operation of power plant at Snoqualmie 

Falls but returned to river above station. Some pondage at Snoqualmie Fells and some 

diurnal fluctuation caused by power plant.

Rating table, water year 1949-5O except periods of backwater or Ice ef:"ect 

(gage height, In feet, and discharge, In second-feet)

44.2

44.4

44.7

45.0

45.5

620

775

1,040

1,330

1,880

46.0

46.5

47.0

48.0

49.0

2,520

3,280

4,130

6,080

8,360

50.0

51.0

52.0

11,000

13,900

16,900

Discharge, In second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

902

843

800

1,510

4,960

4,680

3,520

2,590

4,850

9,370

6,290

6,080

4,490

3,360

3,610

3,610

2,810

2,450

2,180

2,000

1,760

1,600

1,540

1,430

1,380

1,380

1,650

10,200

9,320

4,580

3,360

Nov.

2,740

2,380

2,180

2,000

1,820

1,650

1,600

1,540

1,650

1,700

1,940

5,460

12,100

10,400

6,950

4,780

3,780

3,200

2,880

2,590

2,320

2,250

3,860

6,630

8,360

8,360

018,700

*cl7,700

9,890

6,950

-

Dec.

6,950

11,000

7,640

5,660

4,680

4,220

3,610

3,200

3,120

2,960

2,660

2,520

2,380

2,380

2,520

3,040

2,880

2,810

2,520

2,250

2,250

3,700

6,510

7,180

5,260

5,460

8,360

CIS, 900

16,000

9,110

6,510

Jan.

5,260

4,4OO

3,780

3,520

3,200

3,440

3,610

3,200

2,960

2,880

2,810

2,590

2,380

b2,300

b2,200

b2,120

a2,080

a2 , 050

a2,260

9,030

15,400

18,100

13,300

7,410

5,460

4,680

4,040

3,610

3,120

2,810

2,590

Month

October .......................

November ................ .....

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April ............... ..........

May ..................... .....

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ...........

Feb.

2,520

2,320

2,250

2,320

2,380

2,590

2,590

2,880

2,960

2,810

2,810

2,810

3,950

4,870

5,870

7,880

7,180

5,870

5,460

4,870

4,490

6,290

6,950

14,800

13 , 900

13,600

10,400

7,640

_

_

-

Secondfoot-days

109,105

158,360

168,240

1,443,144

146,590

155,260

219,870

157,040

182,040

235,490

136,710

66,120

33,257

1,768,082

Mar.

6,080

5,460

8,090

c24,400

C2 1,000

16,300

9,890

7,410

6,290

5,660

4,870

4,400

4,040

3,780

3,610

3,780

8,610

9,890

9,630

7,880

6,510

5,870

5,260

4,680

4,310

3,950

4,040

3,700

3,440

3,520

3,520

Maximum

10.20C

18 , 70C

18.90C

18,90C

18,10C

14.80C

24,40C

10,400

9 11C

lo!70C

8, 12C

7,640

3,440

24,400

Apr.

6,290

6,510

5,660

4,870

4,400

4,400

4,130

3,780

3,700

3,440

3,360

4,580

6,510

5,460

5,870

9,630

10,400

7,640

6,290

6,080

6,080

5,460

5,060

4,490

4,130

3,780

3,950

3,780

3,610

3,700

May

3,950

4,220

3,950

3,860

4,400

4,220

3,780

3,610

3,610

3,780

4,960

7,880

9,110

8,360

7,410

6,950

7,410

6,730

5,660

5,260

5,260

6,510

6,080

5,260

5,460

6,950

8,860

8,360

6,950

6,730

6,510

Minimum

800

1,540

2,250

672

2,050

2,250

3,440

3,360

3,610

5,460

2,450

1,270

650

650

June

6,950

7,640

8,120

9,370

9,110

6,730

5,660

5,460

5,660

6,510

8,360

8,610

7,880

6,950

6,730

7,640

10,700

8,860

8,860

9,890

9,370

8,120

10,400

7,880

6,080

6,080

6,510

7,640

8,860

8,860

Mean

3,520

5,279

5,427

3,954

4,729

5,545

7,093

5 235

5 , 872

7,850

4,410

2 133

l)l09

4,844

July

8,120

7,410

6,510

6,730

6,730

6,290

5,660

5,060

4,960

4,680

3,780

3,700

4,130

4,310

4,040

3,440

3,440

3,610

4,310

4,680

3,780

3,780

3,700

3,610

3,440

3,120

2,810

2,590

2,880

2,960

2,450

Per

square 

mile

5.82

8.73

8.97

6.54

7.82

9.17

11.7

9.71

13.0

7.29

3.53

1.83

8.01

Aug.

2,250

2,2

2,1

1,9

50

20

40

1,700

1,600

1,6

1.7

1,6

50

00

00

1,480

1,430

1.4

1,4

1,3

30

30

00

3,180

7,640

3,7

2,5

2,1

00

90

80

1,940

1,760

1,4

2,1

3,2

80

20

00

2,740

2,060

1,8

1,7

1,4

1,3

20

00

80

80

1,270

Sept.

1,170

1,160

1,100

1,150

1,070

1,010

936

834

843

928

843

775

784

751

775

688

719

767

688

650

695

665

688

658

1,300

3,440

2,960

2,120

1,760

1,330

Runoff

Inches

6.71

9.73

10.34

83.69

9.01

9 .54

13 52

9 *65

11.19

14.48

8.40

4 .06

2.04

103.67

Acre-feet

216,400

314, 100

333,700

2,862,000

290,800

308,000

436,100

311,500

361,100

467,100

13 l! 100

65,960

3,510,000

Peak discharge (base. 16,000 sec .-ft.). Oct. 28 (9 p.m.) 16,000 sec.-ft.; Nov. 27 (12 p.m.) 

23,100 sec.-ftT; Dec. 28 (6 p.m.) 19,500 sec.-ft.; Jan. 22 (3 p.m.) 19,000 sec.-ft.; Feb. 24 (4,:1 

p.m.) 16,600 sec.-ft.; Mar. 4 (8:30 p.m.) 30,100 sec.-ft.

* Winter discharge measurement made on this day.

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

b Stage-discharge relation affected by Ice.

c Backwater; discharge computed by using fall as a factor.
SNOHOMISH RIVER BASIN 135

South Fork Snoqualmie River at North Bend, Wash.

Location. Water-stage recorder, lat. 47°29'40", long. 121°47'20", in NEij sec. 9, T. 23 

N., K. 8 E., at North Bend, 2 miles upstream from mouth.

Drainage area. 83 square miles.

Records available.--June 1945 to April 1950 (discontinued). July 1907 to September 1926, 

feoruary laaa to September 1938 at sites 1 mile upstream.

Average discharge.--32 years (1907-26, 1929-38, 1945-49), 547 second-feet.

Extremes. Maximum discharge during period October to April, 5,190 second-feet Nov. "7 

 (gage height, 8.85 feet); minimum, 105 second-feet Oct. 3 (gage height, 2.05 feet).

1907-26, 1929-38, 1945-50: Maximum discharge recorded, 7,620 second-feet Oct. 25, 

1934 (gage height, 11.2 feet, site and datum then in use), from rating curve extended 

above 2,000 second-feet, but may have been greater Nov. 3, 4, 19, 23, 29, 1909, when 

water was over gage; minimum discharge, 63 second-feet Oct. 22, 1925 (gage height, 

1.14 feet, site and datum then in use).

Remarks.--Records good. Some small diversions for irrigation and domestic use. No 

regulation.

Rating table, October 1949 to April 1950 (gage height, in feet,

ana discharge, in second-feet) 

(Shifting-control method used Oct. 1-28, Mar. 4-2O)

2.3 226

2.5 315

2.8 460

3.1 620

3.5 840

4.0 1,130

4.5 1,430

5.0 1,740

6.0 2,440

7.0 3,250

8.0 4,210

Discharge, in seoond-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

113

109

105

170

410

386

310

257

673

1,160

986

869

570

430

440

405

348

315

284

266

248

235

226

213

209

209

230

1,950

i.oec

658

502

Nov.

415

367

324

292

270

252

235

230

226

222

279

666

1,240

1,100

785

576

476

415

376

338

306

320

533

1,380

1,280

1,520

3,900

2,030

1,280

950

-

Dec.

984

1,480

1,040

785

675

592

528

481

470

435

396

386

376

367

381

376

372

362

334

320

338

491

714

730

648

664

1,250

2,350

1,520

1,130

922

Jan.

735

675

614

592

560

598

560

517

496

486

460

435

410

386

381

367

357

334

362

690

1,190

1,550

1,220

922

758

675

636

598

538

496

465

Month

October .......................

November ......................

December ......................

Calendar year 1949 . .......

January .......................

February ......................

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

April 1-10.. ...................

May ....................... ...

June ........... ..............

July .......................

August ........................

September .....................

The period ..................

Feb.

445

415

400

420

410

430

400

435

405

396

391

391

476

507

675

868

812

730

702

636

626

812

1,420

1,810

1,670

1,460

1,160

980

_

_

-

Secondfoot-days

14,346

22 583

217,345

19,113

20 , 282

31,715

7,488

-

-

Mar.

868

785

1,280

3,790

2,360

1,700

1,280

1,100

950

868

785

730

702

658

636

702

1,270

1,340

1,280

1,040

922

868

785

730

675

648

£42

598

560

576

587

Maximum

1,950

3 , 90C

2,350

3,900

1,550

1,810

3,790

950

-

-

Apr.

950

950

840

758

730

730

675

653

620

582

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

_

_

-

_

-

-

May

Minimum

105

222

320

105

334

391

560

582

-

-

June

Mean

463

753

706

S9S

617

724

1,023

749

-

-

July

Per 

square 

mile

5

9.07

8 .51

7.17

7.43

8 . 72

12 . 3

9.02

_

-

Aug. Sept.

Runoff

Inches Acre-feet

6.43 28,450

10.12 44,790

9.81 43,430

97.38 431,100

8 .56 37 , 910

9.09 40,230

14.21 62,910

3.36 14,850

-

272,600

Peak discharge (base. 2,200 sec.-ft.-) . Oct. 28 (11:30 a.m.) 3,430 sec.-ft.; Nov. 27 (10:30 

5,190 sec.-ft.; Dec. 28 (7 a.m.) 2,750 sec.-ft.; Mar. 4 (10 a.m.) 4,670 sec.-ft.

238382 O - 53 - 10
126 SNOHOMI3H RIVER BASIN

Raging River near Pall City, Wash.

Location.--Hater-stage recorder, lat. 47°32 I 25", long. 121°54'10", on west line sec. 27,

 T. ^4 N., R. 7 E., 2 miles southwest of Fall City and 2| miles upstream from mouth.

Drainage area.--31.2 square miles.

Records available.--July 1945 to September 1950 (discontinued).

Extremes.--Maximum discharge during year, 2,050 second-feet Mar. 4 (gage height, 5.35

 feet), from rating curve extended above 1,300 second-feet on basis of contracted-opening 

determination of peak flow of flood of Feb. 9, 1951, at stage of 6.76 feet; minimum, 11 

second-feet Oct. 1-3, Aug. 11-14.

1945-50: Maximum discharge, 2,200 second-feet Feb. 17, 1949 (gage height, 5.60 

feet), from rating curve extended as above; minimum, 8.8 second-feet Sept. 9, 10, 1949.

Discharge, in second-feet, water year October 1949 to September 1950

Day

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

11 

11 

11 

33 

88

52 

51 

36 

193 

298

206 

154 

104 

78 

132

107 

81 

69 

58 

52

48 

44

41

37 

36

35 

45 

484 

260 

162 

113

Nov.

86 

71 

60 

53 

48

44

41 

46 

69 

73

103 

464 

584 

440 

294

206 

150 

119 

98 

62

71 

91 

174 

246 

305

323 

944 

590 

465 

370

Dec.

312 

394 

305 

237 

195

172 

141 

115 

111 

100

84 

79 

81 

94 

159

201 

179 

166 

132 

107

119 

380 

712 

644 

495

460 

1,100 

1,260 

833 

584 

412

Jan.

301 

231 

200 

180 

170

192 

287 

221 

179

164

162 

136 

113 

100 

95

90 

85 

82 

220 

1,040

1,020 

1,130 

746 

435 

283

220 

170 

150 

140 

120 

110

Month

Octc 

Nove 

Dece

Ca

Jam. 

Febi 

Marc 

Apr] 

May 

June 

Julj 

Augv 

Sept

WE

mber ....... ...........

lendar year 1949 .........

ary

st

ember ......... ....... . .

ter year 1949-50 ..........

Feb.

100 

90 

100 

115 

135

170 

150 

240 

204 

190

195 

212 

485 

470 

638

632 

552 

422 

399 

316

294 

596 

678 

1,220 

1,050

882 

568

366

Secondfoot-days

3,130 

6,710 

10,363

48,627.4

8,772 

11,469 

12,045 

7,646 

3,088 

1,348 

562 

702 

791

66,626

Mar.

269 

234

555 

1,510 

1,020

686 

430 

312 

256 

221

176 

150 

132 

119 

115

166 

835 

716 

882 

590

412 

358 

301 

243 

212

187 

224 

198 

162 

176 

198

Maximum

484 

944 

1,260

1,380

1,130 

1,220 

1,510 

686 

166 

75 

25 

120 

134

1,510

Apr.

426 

378 

366 

305 

253

228 

184 

157 

152 

136

119 

166 

283 

221 

327

686 

590 

386 

387 

224

187 

164 

159 

150 

154

159 

221 

234

187 

157

May

145 

152 

130 

123 

148

166 

143 

121 

107 

98

93 

94

94

89 

84

82 

96 

132 

102 

88

82 

81 

76 

72 

68

65 

73 

73

81 

69

61

Minimum

11 

41 

79

8.8

82 

90 

115 

119 

61 

28 

13 

11 

13

11

June

58 

60 

51 

49 

48

49 

55 

56 

46 

44

43 

41 

42 

41 

39

35 

42 

39

35 

32

34 

49

75 

64 

50

43 

36 

34 

30 

26

Mean

101 

224 

334

133

283 

410 

389 

255 

99.6 

44.9 

18.1 

22.6 

26.4

183

July

25 

24 

22 

22 

20

19 

18 

18 

24 

22

20 

19 

17 

17 

17

17 

16 

15 

23 

20

17 

15 

15 

14 

14

13 

14 

17 

18 

16 

14

Per 

square 

mile

3.24 

7.18 

10.7

4.26

9.07 

13.1 

12.5 

8.17 

3.19 

1.44 

.580 

.724 

.846

5.87

Aug.

13 

13 

12 

12 

12

12 

13 

13 

12 

12

12

11 

11 

11 

120

76 

36 

26 

22 

20

18 

19 

26 

34 

26

22 

20 

18 

17 

17 

16

Sept.

15 

15 

15 

17

16

16 

15 

15 

14 

14

14 

14 

14 

14 

14

15 

14 

14 

14 

14

14 

13 

13 

15

81

134 

84 

66 

44 

34

Runoff

Inches

3.73 

8.00 

12.35

57.96

10.46 

13.67 

14.36 

9.11 

3.68 

1.61 

.67 

.84 

.94

79.42

Ac re- feet

6,210 

13,310 

20,550

96,450

17,400 

22,750 

23,890 

15,170 

6,120 

2,670 

1,110 

1,390 

1,570

132,100

Peak discharge (base, 1,300 sec. -ft. ). --Dec. 27 (11:30 p.m.) 1,850 sec. -ft.; Jan. 20 (12 m. ) 1,380

2,050 sec.-ft.

Note. NO gage-height record Jan. 3-5, 14-19, Jan. 26 to Feb. 7; discharge computed on basis of 

records for nearby streams. Shifting-control method used Oct. 1-S, Mar. 4 to Sept. 30.
SNOHOMISH RIVER BASIN 

Patterson Creek near Pall City, Wash.

137

Location. Water-stage recorder, lat. 47"35"00", long. 121°56'25", in NW£ sei. 8, T. 24 

fl. , K. 7 E. , 2 miles upstream from mouth and 2f miles northwest of Fall City.

Drainage area. 16.5 square miles; 19.6 square miles at former location.

Records available. February 1947 to October 1950 (discontinued). June to October 1945 

at site if miles downstream.

Extremes. Maximum discharge during period October 1949 to October 1950, 379 second-feet 

 Jan. 22 (gage height, 4.25 feet); minimum, 10.5 second-feet Aug. 10, 11, 12.

1945, 1947-50: Maximum discharge, 480 second-feet Feb. 17, 1949 (gage height, 4.81 

feet); minimum, 7.1 second-feet Aug. 23, 24, 27, 1947.

Remarks. Records good except those for periods of shifting control, no gage-height record, 

oFThose above 150 second-feet, which are fair. Some small diversion for irrigation 

and domestice use. No regulation.

Discharge, In second-feet, 1949-50 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

14

11.5

11

21

20

15

13.5

12.5

15.5

16.5

13.5

14.5

12.5

12

18.5

14

13

12

12

12

12

12

12

12

12

12

13.5

33

18.5

15.5

14

Nov.

13.5

13.5

13.5

13

13

13.5

13.5

1-4

19

16.5

27

74

57

46

29

23

20

19.5

18.5

17

IS. 5

25

26

25

29

39

113

70

53

50

-

Dec.

50

68

48

39

33

29

26

23

26

24

22

24

25

24

30

32

41

38

31

28

26

26

67

71

88

95

114

122

109

91

86

Jan.

64

51

41

34

31

64

72

64,

54

72

72

55

45

a40

a40

a35

a35

a60

a!35

229

306

339

251

167

a90

a70

a60

a50

a45

a40

a35

Feb.

a30

a30

a35

a35

39

61

67

118

104

92

83

82

118

104

106

113

100

80

74

60

64

65

64

88

132

152

132

99

_

-

Mar.

76

64

110

281

251

178

118

84

68

57

47

43

40

35

32

44

122

132

157

137

108

94

76

68

61

55

51

44

39

44

39

Apr.

50

49

53

45

40

41

36

36

32

29

29

53

55

45

68

92

85

71

60

52

45

44

48

41

39

36

64

52

46

41

Hay

45

44

40

38

44

46

41

37

34

31

29

28

25

24

23

22

28

26

23

22

19.5

19.5

19

17.5

17

16.5

16.5

17.5

17

16

15

June

14.5

14

14

13.5

13.5

15.5

18

16

15.5

14.5

15.5

14.5

15

15.5

15

14

13.5

13

13

12.5

13.5

13.5

12.5

12.5

12.5

12

12

12

12

12

July

12

12

13

13.5

12

12

12

12.5

14

13

12

11. f

11. F

11. f

11.5

11.5

11

11

12

11

11

11

11

11

11

11

11.5

12

11.5

13.5

11.5

Aug.

11.5

11

11

11

11

11

11

11

11

11

10.5

10.5

11

11

15.5

15.5

12

12

11.5

11.5

11

11.5

12

11.5

12

11.5

11.5

12

11.5

11.5

12

Sept.

11

11

11

13

11.5

11.5

11.5

12

12

12

12.5

1Z-.5

12

12

12

12

12

12

12.5

12

12.5

13

13

15

17.5

18

14

13.5

13.5

14

-

ft~. Peak discharge 

(base, 20O see.-ft.). Jan. 22 (7 a.m.) 379 sec.-ft.} Mar. 4 (4:30 a.m.) 326 sec.-

a Ho gage-height record; discharge computed on basis of weather records and records of nearby 

streams.

Hote. Shifting-control method used Dec. 24 to June 30, Aug. 15.

1950

Day

Oct. 1 

2 

3

Discharge

14 

13.5 

13.5

Day

Oct. 4 

5

6

Discharge

14.5 

28 

17.5

Monthly discharge, In second-feet, 1949-50

Month

April .........................

May...........................

July. .........................

October 1-6, 1950. ............

Secondfoot-days

451 

920.5 

1,556

10,514.0

2,746 

2,327 

2,755 

1,477 

839 

415 

366.5 

359.5 

382.0

14,594.5

101

Maximum

33

113 

122

352

339 

152 

281

92 

46 

18 

14 

15.5 

18

339

28

Minimum

11 

13 

22

8.0

31

30 

32 

29 

15 

12 

11 

10.5 

11

10.5

13.5

Mean

14.5 

30.7 

50.2

28.8

88.6 

83.1 

88.9 

49.2 

27.1 

13.8 

11.8 

11.6 

12.7

40.0

16.8

Per 

square 

mile

0.879 

1.86 

3.04

1.75

5.37 

5.04 

5.39 

2.98

1.64 

.836

.715 

.703 

.770

2.42

1.02

Runoff

Inches

1.02 

2.07 

3.51

23.72

6.19 

5.24 

6.21 

3.33 

1.89 

.94 

.83 

.81 

.86

32.90

.23

Acre-feet

895 

1,830 

3,090

20,850

5,450 

4,S20 

5,460 

2,930 

1,660 

823 

727 

713 

758

28,980

200
138 SNOHOMISH RIVER BASIN'

Griffin Creek near Tolt, Wash.

Location.--Water-stage recorder, lat. 47°37'00", long. 121°54'30", in SEij s?c. 28, T. 25 

N., R. 7 E., half a mile upstream from mouth and 2 miles south of Tolt.

Drainage area.--16.8 square miles.

Records available. June 1945 to September 1950.

Extremes. Maximum discharge during year, 462 second-feet Mar. 4 (gage height, 4.23 feet); 

minimum, 3.6 second-feet Aug. 12, 13, Sept. 22 (gage height, 1.04 feet).

1945-50: Maximum discharge, 522 second-feet Oct. 19, 1947 (gage height, 4.01 feet); 

minimum, 2.4 second-feet Sept. 13, 1949.

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

which are poor. Some small diversions for irrigation and domestic use. No regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13

14 

15

16

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

4.7 

4.9

4.9 

10 

14

12.5 

10.5 

8.8 

10.5 

12.5

10 

12.5 

11.5 

11 

15.5

16.5 

16 

15.5 

14

12.5

12 

11 

10 

9.9 

9.5

9.9 

11.5 

28 

35 

41 

32

Nov.

27 

23 

21 

18.5 

17

15.5 

15 

14.5 

18 

21

25 

65 

146 

191 

148

109 

86 

68 

55 

46

30

36 

42 

45

51

60 

132 

148 

132 

116

Dec.

*102 

91 

78 

67 

56

46 

38 

33 

34 

33

29 

28 

27 

26 

31

44 

66 

74 

62 

50

45 

45 

65

126 

135

158 

157 

167 

146 

133 

111

Jan.

87 

71 

62 

47 

40

b70 

b75 

b70 

b62 

b76

b76 

b65 

b60 

55 

50

47 

46 

50 

70 

150

242

316 

238 

181 

*135

70 

50 

40 

35 

32 

30

Month

Octo 

Nove

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lenda.r year 194S 

ary

h . . ...................

ember .....................

ter year 1943-50 ..... ....

Feb.

28 

28 

28 

28 

29

34

39 

71 

87 

87

86 

92 

148 

179 

195

206 

197 

160 

138 

114

107 

129 

130 

181 

228

202 

179 

132

Secondfoot-days

438.1 

1,921.5 

2,303

12,610.3

2,698 

3,262 

3,540 

1,772 

1,022 

261.5 

150.3 

141.4 

143.0

17,652.8

Mar.

107 

90 

98 

355 

273

193 

106 

129 

99 

87

68

51 

44 

36 

31

38 

107 

167 

246 

236

186 

145 

112 

91 

78

67 

60 

50 

44 

46 

46

Maximum

41 

191 

167

367

316 

228 

355 

107 

68 

12.5 

5.9 

7.3 

9.9

355

Apr.

59

68 

82 

77 

70

64 

56 

48 

42 

36

34 

50 

59 

56 

60

92 

107 

94 

81 

68

57 

53 

53 

46 

40

36 

49 

49 

45

41

May

46 

49 

44 

42 

55

68

67 

60 

53

47

40 

34 

31 

28 

32

26 

30 

30 

25 

22

20

19 

17 

17 

17

18.5

17 

18.5 

19 

16 

14

Minimum

4.7 

14.5 

26

2.6

30 

28 

31 

34 

14 

5.9 

4.2 

3.8 

3.8

3.8

June

11.5 

11.5 

11.5 

9.9 

10

10.5 

12.5 

10.5

10 

9.2

9.2 

9.2 

9.5 

8.8 

9.2

8.5 

8.2 

7.9 

7.9 

7.3

7.9 

7.9 

7.6 

7.3 

7.0

6.6 

6.3 

6.3 

5.9 

5.9

Mean

14.1 

64.0 

74.3

34.5

87.0 

116 

114 

59.1 

33.0 

8.72 

4.85 

4.56 

4,77

48.4

July

d5.8 

d5.6 

5.3 

5.3

5.1

5.1 

5.1 

5.1 

5.9 

5.5

5.1 

4.9 

4.7 

4.5 

4.5

d4.4 

d4.3

4.2 

5.3 

4.5

d4.4 

d4.3 

d4.2 

d4.2 

4.2

4.4 

4.4 

5.3 

5.3 

4.9 

4.5

Per 

square 

mile

0.839 

3.81 

4.42

2.05

5.18 

6.90 

6.79 

3.52 

1.96 

.519 

.289 

.271 

.284

2.88

Aug.

4.4 

4.2 

4.2 

4.2 

4.2

4.4 

4.4 

4.2 

4.0 

4.0

4.0 

3.8 

4.0 

4.0 

7.3

7.0 

5.5 

4.9 

4.5 

4.4

4.2 

4.4 

5.3 

5.3 

4.7

4.5 

4.4 

4.2 

4.2 

4.2 

4.4

Sept.

4.2 

4.0 

4.4 

4.5 

4.2

4.0 

4.2 

4.0 

4.0 

4.0

4.0 

4.0 

4.2 

4.2 

4.2

4.4 

4.4 

4.4 

4.2 

4.2

4.0 

3.8 

4.0 

5.3 

8.2

9.9 

6.8 

6.3 

5.7 

5.3

Runoff

Inches

0.97 

4.25 

5.10

27.91

5-97 

7.22 

7.84 

3.92 

2.26 

.58 

.33 

.31 

.32

39.07

Ac re- feet

869 

3,810 

4,570

25,010

5,350 

6,470 

7,020 

3,510 

2,030 

519 

298 

280 

284

35,010

Peak discharge (base. 220 sec. -ft. ) . Jan. 22 (12 m.) 342 sec. -ft.; Feb. 25 (10 a.m.) 265 sec.-

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of records for nearby st:-eams. 

Note. No gage-height record Jan. 3-5, 14-20, 25-31, May 13-24; discharge computed on basis of 

1 discharge measurement, weather records, recorded range in stage, and records for nearby streams.
SNOHOMISH RIVER BASIN 139

Tolt River near Tolt, Wash.

Drainage area.--80 square miles.

Records available . August 1928 to January 1932, September 1937 to September 1950.

Average discharge.--16 years (1928-31, 1937-50), 573 second-feet.

Extremes.--Maximum discharge during year, 10,600 second-feet Mar. 4 (gage hsight, 11.54 

 feet); minimum, 102 second-feet Sept. 23, 24 (gage height, 4.30 feet).

1928-32, 1937-50: Maximum discharge, 11,700 second-feet Jan. 7, 1945 (gage height, 

12.14 feet), from rating curve extended above 4,500 second-feet; minimum, 63 second-feet 

Sept. 25, 26, 1940; minimum gage height, 4.07 feet Sept. 23, 1938.

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

poor. No diversion or regulation.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge. In second-feet)

Oct. 1 to Mar. 3 Mar. 4 to Sept. 30

4.6 141 5.8 545 7.5 2,110 4.3 102 5.8 590 8.0 

4.8 180 6.2 790 8.0 2,790 4.5 139 6.2 820 8.5 

5.1 259 6.6 1,110 8.5 3,560 4.8 207 6.6 1,100 9.0 

5.4 364 7.0 1,510 9.5 5,340 5.1 295 7.0 1,430 10.0 

5.4 405 7.5 1,950

Discharge, in second-feet, water year October 1949 to September I9f0

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

157 

143 

139 

929 

1,680

1,110 

702 

490 

2,100 

1,190

972 

776 

556 

448 

780

545 

427 

372 

334 

305

285 

265 

256 

239 

230

236 

326 

2,700 

900 

545 

426

Nov.

364 

326 

302 

285 

262

250 

236 

256 

291 

294

476 

1,890 

3,400 

2,040 

1,056

727 

572 

505 

448 

405

364 

530 

672 

1,330 

1,620

1,690 

3,040 

1,400 

1,050 

908

Dec.

1,400 

1,980 

1,000 

741 

660

589 

515 

476 

476 

418

380 

364 

372 

384

481

530 

495 

448 

397 

372

368 

1,310 

1,860 

1,400 

988

924

2,730 

5,120 

2,370 

1,510 

1,070

Jan.

860 

734 

648 

589 

556

556 

530 

486 

448 

439

405 

364 

356 

a330 

a310

a300 

a280 

a270 

500 

3,900

3,560 

3,160 

1,740 

1,100 

818

720 

648 

567 

510 

a470 

a450

Feb.

a430 

a420 

a420 

a420 

a430

a440 

448 

476 

448 

431

422 

439 

860 

940 

1,240

1,620 

1,200 

932

892 

783

776 

1,400 

1,860 

4,250 

2,510

2,510 

1,740 

1,220

Unn+u Second 

Bonth foot-days

Octc 

Nove 

Dece

C£

Janu 

Febr 

Hare 

Apr! 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lender year 1919 

ary

ember . . ..................

20,563 

26,989 

32,128

235,366

26,624 

29,957 

36,868 

26,580 

28,441 

31,925 

15,701 

9,373 

5,784

ter year 1949-50 .......... 290,933

Mar.

1,020 

924 

3,240 

5,790 

2,240

1,680 

1,260 

1,100 

950 

850

760 

700 

640 

605 

590

700 

1,950 

1,580 

1,530 

1,140

985 

880 

790 

700 

664

635 

630 

580 

540 

585 

630

Maximum

2,700 

3,400 

5,120

5,120

3,900 

4,250

5,790 

1,950 

1,430 

1,380 

915 

1,260 

1,020

5,790

Apr.

1,430 

1,100 

880 

790 

724

724 

646 

620 

600 

555

555 

950 

1,100 

850 

1,300

1,950

1,780 

1,140 

950 

985

950 

850 

760 

700 

646

600 

640 

600 

600 

605

Hay

688 

712 

652 

682 

850

760 

688 

640 

625 

664

915

1,340 

1,300 

1,140 

985

950 

1,140 

915 

915 

850

880 

985 

850 

760 

880

1,140 

1,430 

1,180 

1,060 

950 

915

Minimum

139 

236 

364

99

270 

420 

540 

555 

625 

790 

289 

178 

104

104

Peak discharge (base, 3,400 sec. -ft.). Oct. 9 (2 p.m.) 5,150

June

1,020 

1,100 

1,220 

1,300 

1,100

820 

790 

880 

880 

1,060

1,260 

1,140 

985 

915 

950

1,260 

1,300 

1,100 

1,180 

1,260

1,100 

1,300 

1,380 

985 

790

790 

915 

1,060 

1,100 

985

Hean

663 

900 

1,036

645

859 

1,070 

1,189 

886 

917 

1,064 

506 

302 

193

797

sec. -ft. ;

July

915 

82C 

790 

790 

730

682 

590 

550 

600 

515

441 

445 

520 

490 

429

373 

397 

421 

718 

490

441 

425 

405

37:

351

323

295 

334 

405 

35.* 

28^

Per 

square 

mile

8.29 

11.2 

13.0

8.06

10.7 

13.4 

14.9 

11.1 

11.5 

13.3 

6.32 

3.78 

2.41

9.96

Oct. 28

2,560 

3,300 

4,120 

6,320

Aug.

274 

268 

241 

215 

207

213 

244 

213 

202 

190

187 

182 

182 

178 

1,260

820 

433 

330 

277 

250

224

221 

369 

520 

358

274 

241 

218 

204 

194 

184

Sept.

178 

171 

167 

169 

160

152 

143 

141 

139 

131

129 

129 

125 

125 

121

121 

117 

112 

110 

109

107 

105 

104 

129 

470

1,020 

417 

286 

215 

182

Runoff

Inches

9.56 

12.55 

14.94

109 . 42

12.38 

13.93 

17.14 

12.36 

13.22 

14.84 

7.30 

4.36 

2.69

135.27

(9 a.m.

Ac re- feet

40,790 

53 , 530 

63,720

466 , 800

52,810 

59,420 

73,130 

52,720 

56,410 

63,320 

31,140 

18,590 

11,470

577,000

11 a.m.)

4,410 sec.-ft.; Nov. 13 (5:3O a.m.) 4,770 sec.-ft.; Nov. 27 (4:30 a.m.) 4,960 sec.-ft.j Dec. 28 

(3 a.m., 4 a.m.) 7,250 sec.-ft.; Jan. 20 (2 p.m.) 5,340 sec.-ft.; Feb. 24 (5 a.m.) 6,150 see.-ft.; 

Mar. 4 (1 a.m.) 10,600 sec.-ft.

a No gage-height record; discharge computed on basis of records for nearby streams.
140 SBOHOMISH RIVER BASIN

Pilchuck River near Granite Palls, Wash.

Location. Water-stage recorder, lat. 48°03'15", long. 121°57'25", in SE? sec. 30, T. 30 

N., H. 7 E., 200 feet upstream from road bridge and 2 miles south of Granite Palls.

Drainage area. 53 square miles.

Records available. May to October 1911, January 1943 to September 1950.

Extremes. Maximum discharge during year, 5,420 second-feet Feb. 24 (gage height, 8.01 

reer), from rating curve extended above 2,400 second-feet on basis of slope-area determination of peak flow; minimum, 41 second-feet Sept. 22, 23 (gage height, 2.13 feet). 

1911, 1943-50: Maximum discharge observed, 7,930 second-feet Oct. 25, 1945 (gage 

height, 10.28 feet), from rating curve extended above 4,100 second-feet; minimum 

observed, 31 second-feet Sept. 9, 10, 11, 1944.

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

Ulty of Snohomish diverts about 5 second-feet for municipal use. Slight regulation 

at low flow; cause unknown.

Rating table, water year 1949-5O, except periods of shifting control 

(gage height, In feet, and discharge, in second-feet)

2.3 64 3.5 358 5.5 1,680 

2.5 92 4.0 588 6.O 2,230 

2.8 149 4.5 878 7.0 3,610 

3.1 325 5.0 1,230 8.O 5.42O

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

Ill 

89 

82 

644 

1,010

976 

562 

351 

942

507

616 

710 

386 

287 

428

325 

261 

222 

194 

177

160 

149 

141 

132 

124

120 

217 

1,120 

432 

277 

225

Nov.

192 

172 

158 

147 

141

130 

124 

143 

208 

234

579 

1,310 

2,870 

1,540 

710

455 

347 

304 

255 

319

192 

214 

321 

402 

1,040

788 

976 

516 

402 

411

Dec.

698 

1,220 

638 

446 

428

497 

382 

318 

301 

268

240 

225 

217 

222 

284

321 

304 

290 

240 

217

225 

809 

1,240 

943 

648

654 

3,110 

4,020 

1,490 

878 

567

Jan.

441 

354 

301 

274 

255

265 

274 

249 

231 

237

225

214 

192 

187 

al80

a!75 

a!70 

a!70 

a230 

1,510

2,350 

2,060 

976 

588 

a410

a 340 

a 290 

a270 

a250 

a230 

a220

Feb.

a210

3200

a!90 

a210 

a230

a250 

3290 

334O 

378 332-

336 

382 

818 

758 

1,080

1,270 

740 

588 

670 

521

507 

1,080 

1,470 

3,100 

1,580

2,290 

1,150 

722

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Ma*.

June 

July 

Augu 

Sept

Wa

lendar year 1949

1.. .....................................

...

ter year 1949-50 .......................

Mar.

531 

487 

1,890 

2,160 

1,490

1,270 

910 

676 

557 

492

4O2 

351 

318 

294

301

552 

2,060 

1,230 

1,150 

788

638 

588 

464 

394 

366

347 

446 

464 

39O 

446 

459

Apr.

1

1

1 

1

Secondfoot-days

11,977 

15,500 

22,340

123,924

14,118 

21,692 

22,911 

16,486 

9,945 

8,713 

4,593 

3,006 

2,580

153,861

Peak discharge (base, 2,500 sec.-ft .) .--Nov 13 (7:30 a

330 

943 

687 

521 

459

459 

370 

328 

378 

366

347 

848 

682 

507 

040

310 

040 

599 

478 

473

402

362 

374 

340 

354

336 

347 

318 

294 

294

May

311 

328 

294 

321 

665

497 

378 

307 

281 

271

325 

407 

362 

314 

274

271 

311 

297 

366 

328

290 

287 

237 

225 

261

307 

351 

258 

307 

268 

246

Maximum

1,120 

2,870 

4,020

4,020

2,350 

3,100 

2,160 

1,310 

665 

943 

231 

417 

487

4,020

June

277 

284 

301 

304 

252

187 

170 

214 

214 

249

281 

252 

217 

211 

214

281 

284 

231 

249 

258

214 

427 

943 

487 

311

281 

281 

287 

294 

258

July

231 

214 

208 

205 

192

174 

156 

145 

211 

160

141 

138 

154 

138 

126

115 

124 

130 

180 

138

130 

124 

118 

111 

104

97 

95 

154 

160 

118 

102

Aug.

95 

88

80 

76 

76

80 

115 

90 

77 

73

7C 

68 

67 

69 

417

208 

117 

90 

80 

74

69 

67 

115 

151 

100

82 

69 

65 

62 

59 

57

Sept.

54 

53 

52 

52

51

50 

48 

46 

46 

45

45 

44 

44 

45 

44

46 

44 

43 

43 

42

42 

41 

41 

56 

347

487 

261 

156 

117 

95

Mini Mean *£%£

82 38s 23,760 

124 517 30,740 

217 721 44,310

44 340 245,800

170 455 28,000 

190 775 43,030 

294 73'? 451440 

294 550 32,700 

225 321 19,730 

170 290 17,280 

95 148 9,110 

57 97.0 5,960 

41 86.0 5,120

41 422 305,200

.m.) 3,450 sec.-ft.j Dec. 28 (9 a.m.)

3J300 sec.-ft.) Mar. 3 (11 p.m.) 4^650 sec.-ft.' * '

a No gage-height record} discharge determined on basis of records for nearby streams. 

Note. Shifting-control method used May 5 to June 23, Aug. 15 to Sept. 26.
SNOHOMISH RIVER BASIN 141

Little Pilchuck Creek near Lake Stevens, Wash.

Location. Water-stage recorder and wooden control, lat. 48°02 I 00", long. 122°03 I 00", in 

NW^NWt sec. 4, T. 29 N., R. 6 E., \\ miles northeast of Lake Stevens and 2 miles upstream from Stevens Creek.

Records available.--June 1946 to September 1950.

Extremes.--Maximum discharge during year, 312 second-feet Feb. 26 (gage height, 4.65 feet) 

from rating curve extended above 190 second-feet on basis of contracted-opening determination of peak flow; minimum, 1.3 second-feet Sept. 13, 22 (gage height, 0.74 foot).

1946-50: Maximum discharge, 322 second-feet Nov. 11, 1947; maximum gage height, that 

of Feb. 26, 1950; minimum discharge, 1.3 second-feet Aug. 24, 1946, Sept. 13, 22,-1950 

(gage height, 0.74 foot).

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

wmcn are poor. Several small diversions above station.

Rating tables, water year 1949-50, except period of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Nov. 12 to Jan. 12)

Oct. 1 to Nov. 11 Nov. 12 to Sept. 30

0.8 2.1 0.7 1.1 1.7 30 3.5 165 

.9 3.4 .9 2.9 2.0 46 4.0 225 

1.1 8.5 1.1 6.6 2.3 60 4.5 290 

1,3 16.0 1.3 13 2.6 79 

1.5 22 3.0 112

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.4 

2.3 

2.2 

6.3 

12

15.5 

10 

6.9 

5.5 

5.0

5.2 

8.8 

7.5 

6.0 

6.3

6.O 

5.0 

4.2 

3.9 

3.9

3.7 

3.7 

3.6 

3.4 

3.4

3.4 

3.7 

8.2 

8.2 

7.5 

5.5

Nov.

5.0 

4.5 

4.5 

4.1 

3.9

3.7 

3.7 

3.9 

8.2 

7.8

15.5 

42 

88 

102 

62

38 

26 

19.5 

16 

13

10.5 

12 

18.5 

19 

52

79 

82 

73 

52 

48

Dec.

44

112 

121 

81 

59

62 

53 

41 

36 

34

26 

23 

22

21 

26

39 

39 

35 

29 

23

28 

46 

71 

133 

108

92 

154 

193 

165 

154 

111

Jan.

82 

60 

*50 

35 

29

31 

38 

34 

30 

48

54 

44 

b44 

b37

35

32 

30 

28 

35 

70

200 

230 

180 

120 

90

75 

60 

50 

43 

38 

33

Feb.

30

28 

31 

36 

45

55 

70 

80 

*87 

82

76 

83 

125 

133 

143

154 

113 

86 

99 

88

80 

84 

88 

136 

182

270 

277 

182

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194S 

ary

ter year 1949-50 .......................

Mar.

114 

82 

80 

12O 

170

251 

206 

142 

100 

78

60 

SO 

44 

38 

34

35 

75 

105 

116 

91

74 

74 

63 

58 

51

46 

46 

49 

42 

39 

36

Apr.

38 

39 

38 

36 

33

31 

27 

26 

36 

32

32 

71 

77 

59 

60

73 

68 

53 

44 

37

32 

34 

50 

42 

36

32 

29 

28 

25 

22

Secondfoot-days

179.2 

917.3 

2,181

9,812.3

1,961 

2,943 

2,569 

1,240 

375.4 

121.4 

65.6 

57.3 

53.5

12,663.7

Hay

22 

21 

18.5 

18.5 

24

23 

21 

17.5 

16.5 

15

13.5 

12.5 

11 

10 

9.2

8.8 

9.5 

10.5 

10 

9.5

8.8 

8.2 

7.4 

6.8 

6.4

5.5 

6.4 

6.4 

6.4 

6.1 

5.5

Maximum

15.5 

102

193

250

230 

277 

251 

77 

24 

12.5 

2.9 

3.3 

4.0

277

June

4.9 

4.5 

4.2 

4.0 

3.6

3.6 

4.2 

4.2 

3.8 

3.3

3.3 

3.2 

4.2 

3.5 

3.3

3.0 

3.0 

3.0 

2.8 

2.7

2.7 

5.2 

12.5 

7.4 

5.5

4.2 

3.3 

3.0

2.8 

2.5

July

2.4

2.2 

2.1 

2.1 

2.1

2.0 

2.1 

2.1 

2.3 

2.3

2.2 

2.1 

2.0 

2.0 

2.0

2.0 

1.9 

1.9 

2.9 

2.4

2.1 

2.0

1.9 

1.9 

1.8

1.9 

2.0 

2.4 

2.3 

2.2 

2.0

Aug.

1.9 

1.9 

1.9 

1.9 

1.9

2.1 

2.1 

2.0 

1.8 

1.7

1.7 

1.7 

1.7 

2.1 

3.3

2.5 

2.0

1.8 

1.6 

1.6

1.6 

1.5 

1.9 

1.9 

1.8

1.7 

1.6 

1.6 

1.5 

1.5 

1.5

Mini, Hean

2.2 5.78 

3.7 30 . 6 

21 70.4

1.6 26.9

28 63.3 

28 1C5 

34 62.9 

22 41.3 

5.5 12.1 

2.5 4.05 

1.8 2.12 

1.5 1.85 

1.5 1.78

1.5 34.7

Sept.

1.5 

1.5 

1.5 

1.6 

1.6

1.5 

1.5 

1.5 

1.5 

1.5

1.5 

1.5 

1.5 

1.5 

1.6

1.6 

1.5 

1.6 

1.5 

1.5

1.5 

1.5 

1.5 

2.4 

4.0

4.0 

2.4 

2.0 

1.9 

1.8

 fee?

355 

1,820 

4,330

19,460

3,890 

5,840 5,100- 

2,460 

745 

241 

130 

114 

106

25,130

discharge (base. 150 see. -ft.) . Dec. 28 (2 p.m.) 199 see-ft.j about Jan. 22 (time unknown) 

c. -ft,; Feb. 15 (ll p.m.) 176 sec. -ft. j Feb. 26 (7 to 9 p.m.) 312 sec. -ft.; Mar. 6 (2 a.m.)

Peak discha 

277 sec. 

264 sec. -ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Jan. 4, 5, Jan. 15 to Feb. 8j discharge computed on tasis of records 

for nearby streams.
142 SNOHOMISH RIVER BASIN

Lake Stevens at Lake Stevens, Wash.

Location.--Staff gage, lat. 48°00'40", long. 122°04'00", in SWi sec. 8, T. £9 N., R. 6 I 

on pile in log ramp at Huess sawmill in town of Lake Stevens.

Records available.--July 1946 to September 1950 (fragmentary), discontinued.

Extremes. Maximum gage height observed during year, 4.58 feet Mar. 7; minimum observed, 

 l.'ATfeet Sept. 19.

1946-50: Maximum gage height observed, 4.73 feet Jan. 6, 1948; minimum observed, 

that of Sept. 19, 1950.

Remarks.--Several small diversions from lake for irrigation.

Gage height.in feet, water year October 1949 to September 1950

Day j Dot .

1

2

3

4

5

6

7

8

9

10

ii

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

.

_

_

2.12

-

_

-

_

_

-

2.25

_

_

_

-

_

_

2.28

_

-

.

_

_

_

2.26'

_

_

_

_

-

Nov.

2.32

_

_

_

-

.

_

2.32

-

2.54

_

_

2.80

_

_

_

_

-

2.76

_

_

-

_

_

2.98

-

Dec.

_

_

_

_

-

3.20

-

_

_

-

_

3.13

-

_

_

_

_

3.18

_

3.21

_

_

-

3.48

_

_

_

'

Jan.

.

_

3.64

_

-

.

_

_

3.68

_

_

_

-

_

3.58

_

_

-

_

_

4.06

-

_

_

_

_

3.80

FA.

_

_

_

-

_

3.70

3.75

-

_

_

3.90

.

_

_

_

-

3,94

_

_

-

_

4.20

_

_

-

Mar.

_

_

_

-

4.58

_

_

-

_

_

4.18

4.12

_

_

_

_

-

4.14

_

_

-

_

3.96

_

-

Apr.

_

_

3.72

_

_

_

-

3.52

_

_

-

_

_

3.60

_

-

_

_

_

3.48

_

_

_

_

-

May

.

3.30

_

_

-

.

-

_

3.18

-

^

_

_

-

3.00

.

_

_

-

_

2.88

-

.

_

_

2.78

June

_

_

_

_

-

2.66

.

_

_

-

2.56

£.56

_

_

_

_

2.48

_

_

_

-

2.52

_

_

-

July Aug .

2.14

_

_

2.40

-

_

.

2.06

-

2.30

_

_

_

2.06

_

_

2.22

_

-

.

2.00

.

_

2.18

_

.

1.98

1.94

Sept.

_

_

_

1.98

.

.

_

_

-

.

1.80

_

-

_

-

_

1.76

-

_

_

_

_

-

l.fc-

_

_

_

-
SWOHOMISH RIVER BASIN 143

Stevens Creek at Lake Stevens, ¥ash.

Location.-- Staff gage, lat. 48°01'00", long. 122°03'10", on east line sec. 8, T. 29 N., 

H. fci K. , a third of a mile east of town of Lake Stevens and three-quarters of a mile 

upstream from mouth.

Records available.. --June 1946 to September 1950.

Extremes. Maximum discharge observed during year, 136 second-feet Mar. 6 (gage height, 

S. 72 feet) ; no flow Aug. 26 to Sept. 25.

1946-50: Maximum discharge, that of Mar. 6, 1950; no flow Aug. 26 to Sept. 25, 1950.

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

react once dally. Several diversions from Lake Stevens for Irrigation.

Rating tabli 

(gag

.e, water year 1949-50, except periods of shifting 

;e height, in feet, and discharge, in second-feet)

control

0.5 

.6 

.7

1.0

0.1 

.4 

.9

7.0

1.2 

1.4 

1.6 

1.9

2.2

2.5 

2.7

94

102

136

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.1 

1.4 

1.4

2.2 

2.0 

2.2 

1.2 

.8

1.1 

1.1 

.9 

.8 

.8

.8

.7 

.6 

.5 

.5

.5 

.5 

1.2

1.3 

1.3

1.3 

1.4 

2.6 

2.6 

2.4 

2.4

Nov.

2.4 

2.4 

2.2 

2.2

2.1

2.0 

2.0 

2.2 

3.3 

3.8

5.2 

17 

34 

33 

30

27 

27 

25 

26 

22

20 

20 

20 

23 

34

31 

34 

34 

32 

33

Dec.

32 

51 

49 

44 

43

46 

44 

42 

42 

39

37 

37 

35 

34 

37

37 

38 

38 

34 

35

38 

41 

52

54 

55

57 

67 

68 

72 

72 

76

Jan.

75 

72 

65 

62 

56

59 

57 

56 

57 

59

59 

56 

52 

51 

49

48 

46 

44 

41 

51

86 

94 

102 

101

97

94 

94 

80 

72 

65 

56

Feb.

54 

52 

49 

46 

46

54 

56 

66 

65 

66

67 

72 

80 

80 

86

88 

84 

80 

81 

80

78 

76 

76 

78 

90

127 

127 

118

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Hare 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

102 

102 

89 

94 

110

136 

132 

122 

114 

106

102 

96 

81 

75 

68

65 

63 

77 

85 

83

68 

76 

74 

72 

69

68 

68 

65 

64 

60 

59

Apr.

57 

55 

52 

50 

46

44 

44 

40 

39

37

36 

50 

48 

48 

47

51 

50 

48 

47 

45

42 

41 

42 

41 

40

39 

37 

34 

33 

32

Secondfoot-days

37.0 

551.8 

1,446

7,644.6

2,056 

2,122

2,645 

1,315 

484.5 

152.2 

49.3 

4.7 

.8

10.B64.3

May

31

27 

25 

25 

25

25 

25 

24 

23 

20

19 

18.5 

17.5 

12 

12

12 

12 

12 

12 

12

12

11.5 

10.5 

9.3 

8.5

8.1

7.7 

7.3 

7.0 

7.0 

6.6

Maximum

2.6 

34 

76

127

102 

127 

136 

57 

31 

16 

3.5 

.6 

.2

136

June

6.2 

5.6 

5.2 

4.6 

4.3

3.8 

3.8 

3.8 

3.5 

16

14.5 

7.7 

7.0 

6.2 

4.6

4.3 

4.0 

3.8 

3.3 

3.1

3.1 

3.3 

4.3 

4.0 

3.8

3.8 

3.8 

3.8 

3.5

3.5

July

3.5 

3.3 

3.1 

3.1 

2.9

2.4 

2.2

2.1 

2.0 

1.8

1.7 

1.7 

1.6 

1.4 

1.4

1.2

1.2 

1.1 

1.1 

1.1

1.1 

1.0 

1.0 

.9 

.9

.8 

.8 

.8

!?

.7

Minimum

0.1 

2.0 

32

.1

41 

46 

59 

32 

6.6 

3.1 

.7 

0 

0

0

Aug.

0.6 

.5 

.4 

.3 

.3

.3 

.2 

.2 

.1 

.1

0 

0 

0 

0 

0 

0

Mem

1.19 

18.4 

46.6

20.9

63.3 

73.8 

85.3 

43.8 

15.6 

5.07 

1.59 

.15 

.03

29.8

Sept.

o 

0 

0 

0

o

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.2 

.2 

.2

.1 

.1

Runoff In 

acre-feet

73 

1,090 

2,870

15,160

4,080 

4,210 

5,250 

2,610 

961 

302 

98 

9.3 

1.6

21,550

Note. Shifting-control method used Oct. 6 to Dec. 19, Mar. 20 to June 9.
144 SNOHOMISH RIVER BASIN

Dubuque Creak near Lake Stevens , Wash. 

Location. Water-stage recorder and wooden control, lat. 47°59'20", long. 122°01'50", in

«Tr see. 22, T. 29 N., R. 6 E. , 300 feet upstream from Panther Creek and 2j miles 

southeast of town of Lake Stevens.

Records available. July 1946 to November 1950 (discontinued).

Extremes. Maximum discharge during period October 1949 to November 1950, 390 second-feet 

Mar. 6 (gage height, 4.38 feet), from rating curve extended above 100 second-feet on 

basis of critical-depth determination of gage height, 4.35 feet; minimum, 0.2 secondfoot on many days during August and September.

1946-50: Maximum discharge, 390 second-feet Feb. 22, 1949, Mar. 6, 1950; maximum 

gage height, 4.70 feet Nov. 11, 1947; minimum discharge, 0.2 second-foot on many days 

during July 1949, August and September 1950.

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

those for periods of no ga^e-height record, which are poor. No known diversion or 

regulation. 

Revisions (water years). W 1152: 1947-48.

Discharge, In second-feet, 1949-30 

1949-50

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

21

24

25

26

27

28

29

30

31

Oct.

1.2

1.1

1.1

4.5

11.5

12.5

5.3

3.3

2.8

3.3

4.9

12

7.7

6.2

8.4

8.C

6.6

5.6

5.0

4.2

4,0

3.7

3.3

3.0

2.8

2.6

3.0

13

13

9.2

7.3

Nov.

5.9

5.3

4.7

4.2

3.7

3.7

3.5

3.7

11.5

11

18.5

65

117

110

48

21

12.5

8.0

6.2

4.7

3.7

4.7

7.7

6.2

18.5

33

35

24

16

15

Dec.

15

62

47

29

22

23

18

13.5

12.5

11.5

3.7

8.8

8.8

8.4

11.5

22

27

23

19

15

19.5

33

59

88

59

52

78

68

61

60

53

Jan.

41

30

21

18

16

20

23

21

19

26

28

24

19.5

18

17

16

15

14

24

65

173

234

136

72

40

35

30

25

22

20

18

Feb.

16.5

15

18

23

32

48

60

61

C5

52

47

53

97

85

31

91

62

47

55

47

44

47

50

80

102

255

230

98

_

-

Mar.

58

40

45

125

191

332

163

76

55

39

29

24

19.5

17

15

16

55

102

102

44

44

31

24

19.5

16.5

16.5

25

22

18.5

15

Apr.

17

15.5

14.5

11

8.4

7.7

6.6

5.3

5.9

4.7

5.0

19

24

18.5

17

38

46

33

24

18.5

15

15

24

27

24

20

19.5

17

13.5

12.5

"

May

12

11

10

9.7

13.5

13

11.5

10

9.2

8.4

7.7

7.3

6.6

6.2

5.6

5.3

5.9

6.6

5.9

5.6

5.3

5.3

5.0

5.0

4.5

4.2

4.5

4.7

4.7

4.5

3.7

June

3.5

3.3

2.8

2.8

2.6

2.4

2.3

2.3

2.1

1.8

1.6

1.4

1.3

fl.3 n.3

1.1 1.1 1.1

1.0

.8

.8

1.2

4.2

2.4

1.8

1.4

1.2

1.1

1.0

1.0

July

1.3

.7

.7

.6

.6

.5

.6

.6

.1

.6

.6

.5

.4

.4

.4

.4

.4

.4

.7

.6

.5

.4

.4

.3

.3

.3

.3

.4

.4

.4

.3

Aug.

0.3

.3

.3

. 3

.3

.3

.4

.3

.3

.3

.3

.3

.2

.3

.5

.4

.3

.3

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

Sept.

0.2

.2

.2

.3

.3

.2

.2

.2

.2 ' .3

.3

.3

:!.3

.4

.4

.4

.4

.4

.4

.4

.4

.9

1.5

1.8

1.1

1.0

.9

.8

-

Peak discharge (base, 125 see.-ft.). Nov. 13 (ll p.m.) 148 see.-ft.j Jan. 22 (8 a.m.) 

ft.j Feb. 26 (5 p.m.) 343 sea.-ft.) Mar. 6 (7 a.m.) 390 see.-ft.

f Computed on basis of partly estimated gage-height record.

Note. No gage-height record Jan. 3-5, 14-20, Jan. 25 to Feb. 7; discharge computed on 

weather records and records for nearby streams. Shifting-control method used Oct. 6-11, 

to Jan. 2, Jan. 6-13, Feb. 27 to Sept. 30.

1950

basis of 

Nov. 11

Day

x

2

3

4

5

6

7

8

Oct.

0.7

.7

.7

.9

2.1

5.9

2.4

al.9

Nov.

10

11

14.5

13

12

10

9.2

6.6

Day

9

10

11

12

13

14

15

16

Oct.

al.7

a6

alO

a5

a3

a2

al.7

1.6

Nov.

5.6

5.0

4.2

3.7

3.3

2.8

4.0

35

Day

17

18

19

20

21

22

23

24

Oct.

1.6

1.6

2.1

2.1

1.6

1.5

1.3

1.4

Nov.

37

28

20

20

26

23

24

40

Day

25

26

27

28

29

30

31

Oct.

4.7

4.5

8.0

11.5

8.8

7.7

6.9

Nov.

50

44

81

77

49

a45

_

a No gage-height record! discharge computed on basis of weather records and 

ecords for nearby streams.

Note. Shifting-control method used Oct. 1-7, Oct. 16 to Nov. 29. 

monthly discharge, in second-feet, 1949-50

Month

October 1949 .................

January 1950 .................

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

April.........................

May...........................

July..........................

Water year 1949-50 .........

November ......................

Second-- 

foot-days

180.1 

631.9 

1,037.2

5,332.6

1,280.5 

1,991.5 

1,843.5 

527.1 

222.4 

54.0 

15.7 

8.5 

15.0

7,807.4

111.6 

713.9

Maximum

13 

117 

88

340

234 

255 

332 

46 

13.5 

4.2 

1.3 

.5 

1.8

332

11.5 

81

Minimum

1.1 

3.5 

8.4

.2

14 

15 

15 

4.7 

3.7 

.8 

.3 

.2 

.2

.2

.7 

2.8

Mean

5.81 

21.1 

33.5

14.6

41.3

71.1 

59.5 

17.6 

7.17 

1.80 

.51 

.27 

.50

21.4

3.60 

23.8

Per

mile

0.684 

2.48 

3.94

1.72

4.86 

8.36 

7.00 

2.07 

.844 

.212 

.060 

.032 

.059

2.52

.424 

2.80

Runoff

Inches

C.79 

2.76 

4.54

23.33

5.60 

8.71 

8.07 

2.31 

.97 

.24 

.07 

.04 

.07

34.17

.49 

3.12

Aore-feet

357 

1,250 

2,060

10,580

2,540 

3,950 

3,660 

1,050 

441 

107 

31 

17 

30

15,490

221 

1,420
SNOHOMISH RIVER BASIN 145

Quilceda Creek near Marysville, Wash.

Location, Water-stage recorder and wooden control, lat. 48°06 I 20", long. 122 0 09'40", in 

 HEfMjj sec. 9, 1. 30 N., R. 5 E., 300 feet downstream from Middle Fork and 3i miles 

north of Marysville.

Records available.--June 1946 to September 1950.

Extremes. Maximum discharge during year, 143 second-feet Feb. 26 (gage height, 5.72 

feet); minimum, 3.4 second-feet Aug. 22, Sept. 3, 17 (gage height, 1.53 feet).

1946-50: Maximum discharge, 155 second-feet Feb. 22, 1949; maximum gage height, 

that of Feb. 26, 1950; minimum discharge, that of Aug. 22, Sept. 3, 17, 1950.

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

those for periods of no gage-height record, which are poor. Several diversions above 

station for irrigation. No regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.7 

4.4 

4.7 

10.5 

16

8.7 

7.5 

6.1 

6.8 

7.5

7.9 

9.4 

7.2 

6.8 

7.5

6.4 

6.4 

6.4 

6.4 

6.4

6.1 

6.1 

6.1 

5.8 

6.1

6.4 

6.1 

10.5 

8.7 

7.2 

6.4

Nov.

6.8 

6.1 

5.8 

5.8 

5.6

5.6 

5.6 

6.4 

14 

11.5

17 

36 

54 

38 

25

18 

15 

12.5 

11 

9

12 

16 

21 

28 

38

50 

65 

35 

23 

20

Dec.

30 

50 

37 

29 

24

20 

18 

16 

14 

13

12 

11 

10 

10 

12

12 

12 

11 

10.5 

10

11 

25 

50 

45 

35

50 

60 

100 

90 

50 

45

Jan.

40 

35 

33

31 

28

42

47 

38 

34 

66

54 

44 

34 

29 

25

24 

23 

24 

50 

92

120 

120 

116 

82 

65

55 

48 

43 

37 

33 

30

Feb.

27 

25 

25

29 

50

77 

70 

78 

64 

60

54 

68 

84 

74 

78

68 

52 

46 

64 

53

52 

53 

60 

80 

94

128 

116 

84

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base, 110 sec. -ft.). Jan.

ft.

Mar.

62 

53 

54 

62

96

104 

86 

66 

54 

52

42 

36 

35 

32 

30

31 

53 

60 

66 

53

47 

50 

47 

42 

37

34

35 

36 

31 

29 

27

Apr.

27 

29 

30 

27 

25

24 

22 

21 

27 

24

24 

64 

58 

46 

47

52 

48 

40 

33 

29

27 

26 

31 

28 

26

23

26 

23 

21

20

Secondfoot-days

223.2 

616.7 

922.5

7,579.8

1,542 

1,813 

1,542 

948 

439.5 

283.7 

212.5 

152.0 

132.1

8,827.2

May

20 

18.5 

18 

19 

21

20 

18.5 

16.5 

16 

15

14.5 

13.5 

13 

12.5 

12

12 

13.5 

13 

13 

13

13 

12.5 

12 

11.5

11

11 

13 

11.5 

11 

10.5 

10

Maximum

16 

65 

100

149

120 

128 

104 

64 

21 

22 

9.O 

6.5 

10

128

22 (8:30 p.m.) 128 sec.

June

9.8 

9.4 

9.2 

9.0 

9.0

9.2 

9.2 

9.2 

8.8 

8.4

8.2 

8.0 

8.4 

8.6 

8.6

8.2 

7.8 

7.6 

7.6 

7.4

7.3 

11.5 

22 

14 

12

1O.5 

9.6 

9.0 

8.5 

7.8

July

7.6 

7.3 

7.1 

6.9

6.7

6.7 

6.7 

7.6 

8.6 

7.6

7.3 

6.9 

6.7 

6.5 

6.5

6.5 

6.4 

6.2 

9.0 

7.8

6.9 

6.5 

6.2 

6.0 

5.8

5.8 

6.0 

6.9 

7.3 

6.5 

6.0

Minimum

4.4 

5.6 

10

4.4

23 

25 

27 

20 

10 

7.3 

5.8 

3.8 

3.5

3.5

-ft.; Feb.

Aug.

5.8 

5.7 

5.7 

5.7 

5.7

5.4 

5.5 

5.4 

5.2 

5.0

5.0 

4.7 

4.7 

5.0 

6.5

6.5 

5.7 

5.2 

4.9 

4.7

4.1 

3.8 

4.1 

4.2 

4.1

4.1 

4.0 

4 .0 

4.0 

3.8 

3.8

Mean

7.20 

20.6 

29.8

20.8

49.7 

64.8 

49.7 

31.6 

14.2 

9.46 

6.85 

4.9O 

4.40

24.2

26 (5 p.m.

Sept.

3.8 

3.6 

3.5 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.8

3.8 

3.8 

3.6 

3.8 

3.8

3.8 

3.5 

3.6 

3.6 

3.6

3.8 

3.6 

4.0 

7.3 

9.0

10 

6.4 

5.2 

4.9 

4.7

Runoff In 

acre -feet

443 

1,220 

1,830

15,020

3,060 

3,600 

3,060 

1,88O 

872 

563 

421 

301 

262

17,510

i 143 sec.-

ft. 

Note. No gage-height record Nov. 16 to Jan. 3, Jan. 14-19, Jan. 25 to Feb. 5; discharge comput 

on basis of recorded range In stage and records for nearby streams. Shifting-control method used 

Oct. 1 to Nov. 13, Apr. 12 to Aug. 29.
146 STILLAGUAMISH RIVER BASIN

South Fork Stillaguamish River below Bender Creek, near Silverton, Wash.

Location. Water-stage recorder, lat. 48°04'00", long. 121°36'00", in SEij sec. 23, T. 

30 N., R. 9 E., half a mile upstream from Marten Creek and l| miles west of Silverton.

Drainage area. 41.2 square miles.

Records available. June to September 1950 (discontinued).

Extremes. Maximum discharge during period, 4,000 second-feet Aug. 15 (gage height, 3.53 

feet), from rating curve extended above 1,400 second-feet; minimum, 72 second-feet 

Sept. 20, 21 (gage height, 0.18 foot).

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

Ho diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

Month

October .......................

November ......................

December ......................

Calendar year .........

January .......................

February .....................

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

April .........................

May ........... ...............

June 12-30 ....................

July ..........................

August ................ .......

September .....................

The period ..................

Feb.

Secondfoot-days

.

_

_

_

_

24,060

lo|683

4,291

-

Mar.

Maximum

_

_

_

_

_

1,700

1,200

2,000 

608

-

Apr May

Minimum

_

_

_

_

_

69O 

3OO

149

72

-

June

_

_

-

_

-

_

_

-

_

-

_

1,240

1,130

1,020

1,030

1,500

1,700

1,390

1,620

1,650

1,310

1,500

1,650

880

690

a730

a900

al,200

al.500

1,420

-

Mean

_

_

_

_

_

1,266

345

143

-

July Aug .

1,200 350

fl, 160 335

f 1,090 253

1,110 213

997 210

880 246

739 260

615 225

674 216

548 213

428 222

450 219

601 207

587 219

548 2,000

a450 636

567 380

580 296

699 268

554 260

580 236

608 232

622 850

601 656

534 335

467 253

380 222

479 192

438 171

320 159

3OO 149

Per 

square 

mile

_

_

.

_

_

30.7 

15.5

8 .37 

3.47

-

Sept.

145

145

147

137

125

117

107

98

96

95

95

93

91

88

84

81

80

75

75

73

72

74

74

113

411

608

340

239

174

139

-

Runoff

Inches Ac re- feet

_

_

_

_

21.72 47,720

17 .88 39, 280

9.64 21,190 

3.87 8,510

116,700

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

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
STILLAGUAMISH RIVER BASIN 147 

South Fork Stillaguamish River near Granite Falls, Wash.

Location.--Water-stage recorder, lat. 48°06'10", long. 121°56'40", in SW^NW^ sec. 8, T. 30 

N., R. 7 E., lj miles upstream from Canyon Creek and 2 miles northeast of Granite Falls.

Drainage area.--119 square miles.

Records available.--July 1928 to September 1950.

Average discharge.--22 years, 1,023 second-feet.

Extremes.--Maximum discharge during year not determined, probably occurred Dec. 28 during 

period of no gage-height record; minimum, 148 second-feet Sept 22, 23 (gage height, 

3.43 feet).

1928-50: Maximum discharge, 26,700 second-feet Feb. 26, 1932 (gage height, 19.7 feet, 

from graph based on gage readings), from rating curve extended above 6,200 second-feet; 

minimum, 55 second-feet Sept. 23, 24, 1938; minimum gage height, 2.99 feet Aug. 19-21, 

1941.

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

No known diversion or regulation.

Revisions (water years).--W 902: 1939.

Rating table, water year 1949-5O (gage height, In feet,

and discharge , in second-feet) 

(Shifting-control method used May 13 to Aug. 15)

3.4 141 5.0 860 9.0 5,990 

3.7 219 5.5 1,240 10.0 8,000 

4.0 320 6.0 1,700 11.0 10,300 

4.3 455 7.0 2,820 12.0 13,000 

4.6 620 8.0 4,250

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

378 

288 

257 

2,820 

2,520

2,400 

1,380 

916 

3,130 

1,850

2,980 

2,800 

1,380 

965 

1,740

1,080 

806 

662 

549 

480

425 

387 

356 

328 

320

324 

718 

6,500 

1,720 

965 

722

Nov.

590 

505 

450 

392 

360

328 

313 

387 

620 

620

2,390 

4,250 

7,170 

4,250 

1,900

1,160 

888 

758 

668 

578

505 

933 

1,900 

2,000 

5,200

6,000 

11,000 

3,500 

2,100 

1,700

Dec.

3,500 

6,400 

2,200 

1,200 

1,100

1,080 

940 

800 

780 

740

660 

640 

620 

640 

740

760 

710 

660 

620 

580

620 

1,400 

1,900 

1,500 

1,160

1,100 

6,000 

13,000 

4,000 

1,900 

1,500

Jan.

1,000 

740 

692 

650 

572

578 

554 

470 

435 

430

410 

400 

500 

500 

460

460 

420 

370 

480 

5,930

8,650 

5,870 

2,460 

1,420 

1,080

960 

840 

760 

700 

640 

620

Feb.

610 

610 

610 

608 

794

930 

680 

800 

620 

620

630 

640 

1,390 

1,420 

2,900

3,500 

1,800 

1,500 

1,650 

1,180

1,100 

1,900 

2,000 

8,000 

4,000

6,800 

3,100 

1,560

u__ + >> SecondMonth foot-days

Octc 

Nove 

Dece

Ca

Jam: 

Febi 

Marc 

Apra 

May 

June 

Julj 

Augv 

Sept

We

lendar year 1949 

ary

Tiary

h .........................

st .......... .............

ember .....................

42,146 

63,415 

59,450

47,612

40,051 

51,952 

60,769 

45,895 

48,608 

60,220 

31,879 

20,035 

10,569

ter year 1949-50. ......... 534,989

Mar.

1,280 

1,200 

8,720 

9,650 

4,570

2,940 

1,9OO 

1,460 

1,240 

1,040

888 

782 

716 

662 

668

1,170 

4,010 

2,760 

2,460 

1,650

1,560 

1,380 

1,080 

930 

836

800 

1,000 

881 

740 

888 

908

Maximum

6,500 

11,000 

13,000

13,000

8,650 

8,000 

9,650 

4,430 

2,580 

3,490 

1,800 

3,260 

1,900

13,000

Apr.

2,820 

2,010

1,420 

1,080 

1,000

1,040 

881 

800 

902 

824

800 

2,180 

1,960 

1,460 

3,480

4,430 

3,620 

1,900 

1,510 

1,600

1,600 

1,380 

1,160 

1,000 

965

867 

848 

770 

752 

836

May

965 

1,120 

1,000 

1,000 

1,420

1,160 

965 

888 

930 

1,040

,600 

,580 

,580 

,340 

,010

,850 

,960 

,600 

,510 

,280

,420 

,600 

,330 

,240 

,510

,060 

,580 

,900 

,960 

,650 

,560

Minimum

257 

313 

580

155

370 

608 

662 

752 

888 

1,040 

544 

316 

148

148

June

1, 

2, 

2, 

Z, 

Z,

1, 

1, 

1, 

1, 

1,

z, 

z,

I, 

1, 

1,

Z, 

Z, 

Z, 

Z, 

Z,

Z, 

Z, 

3,

1,

1,

1, 

1, 

Z, 

2, 

Z,

Mean

1,360

2,114 

1,918

1,226

1,292 

1,855 

1,960 

1,530 

1,568 

2,007 

1,028 

646 

352

1,466

Peak discharge (base, 8,700 sec. -ft., revised) .--Oct . 28 (9 a.m.) 12,100

900 

060 

230 

460 

120

460 

160 

040 

240 

650

280 

280 

850 

700 

800

340 

580 

120 

4OO 

400

010 

900 

490 

800 

380

460 

700 

060 

230 

120

July

1, 

1,

1, 

1,

1,

1,

1, 

1, 

1,

1, 

1,

Per 

square 

mile

11.4 

17.8 

16.1

10.3

10.9 

15.6 

16.5 

12.9 

13.2 

16.9 

8.64 

5.43 

2.96

12.3

sec. -ft

800 

560 

560 

650 

510

380 

160 

080 

240 

965

800 

812 

000 

965 

860

716 

812 

930 

240 

930

909 

930 

930 

895 

836

752 

674 

881 

902 

656 

544

Aug.

3,

1,

1, 

1,

578 

602 

485 

396 

374

392 

549 

415 

382 

364

364 

364 

352 

356 

260

480 

824 

638 

549 

505

470 

430 

290 

330 

776

566 

485 

425 

374 

344 

316

Sept.

291 

288 

284 

277 

257

241 

228 

216 

208 

202

199 

197 

191 

188 

181

173 

168 

163 

158 

155

151 

141 

148 

213 

1,280

1,900 

965 

662 

465 

369

Runoff

Inches

13.17 

1?.82 

18.58

139.89

12.52 

If. 24 

18.99 

14-. 34 

If .19 

18.82 

9.96 

6.26 

3.30

167.19

. ; Fov .

Acre-feet

83,600 

125,800 

117,900

887,800

79,440 

103,000 

120,500 

91,030 

96,410 

119,400 

63,230 

39,740 

20,960

1,061,000

13 (6:30

... .. . _ _

Jan. 21 (11 a.m.) 10,600 sec.-ft.; Mar. 3 (11 p.m.) 20,200 sec.-ft.

Note.--No gage-height record Nov. 23 to Jan. 2, Jan. 10-19, Jan. 26 to Feb. 3, Feb. 10-12, 15-27; 

discharge computed on basis of records for nearby streams.
148 STILLAGUAMISH RIVER BASIN

South Fork Stillaguamish River above Jim Creek, near Arlington, Wash.

Location. --Water-stage recorder, lat. 48°09'55", long. 122°03'55", in SWi~ sec. 17, T. 31 

W., R. 6 E., l| miles upstream from Jim Creek and 3 miles southeast of Arlington. Datum of gage is 80.00 feet above mean sea level, datum of 1929.

Drainage area.--199 square miles.

Records available.--October 1936 to September 1950.

Average discharge.--14 years, 1,522 second-feet.

Extremes. Maximum discharge during year, 20,900 second-feet Dec. 28 (gage height, 23.41 

feet); minimum, 210 second-feet Sept. 22, 23 (gage height, 11.44 feet).

1936-50: Maximum discharge, 29,900 second-feet Oct. 25, 1946 (gage height, 26.07 

feet), from rating curve extended above 16,000 second-feet; minimum, 112 second-feet 

Sept. 2, 3, 1945.

Remarks.--Records good except those above 15,0.00 second-feet and those for periods of no 

gage-height record, which are fair. No diversion or regulation.

Discharge, in seoond-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

588 

453 

388 

2,640 

3,520

3,140 

2,020 

1,410 

4,380 

2,720

3,930 

3,910 

2,020 

1,500 

2,270

1,650 

1,280 

1,050 

885 

780

714 

652 

623 

583 

550

539 

906 

9,000 

3,000 

1,600 

1,300

Nov.

1,000 

860 

720 

620 

520

470 

450 

560 

1,000 

1,000

4,000 

6,600 

10,000 

6,000 

3,200

2,100 

1,460 

1,280 

1,150 

990

864 

1,140 

2,760 

3,320 

9,000

10,000 

15,000 

5,080 

3,520 

2,930

Dec.

5,620 

9,580 

3,440 

2,320 

2,140

2,080 

1,700 

1,460 

1,410 

1,280

1,150 

1,070 

1,010 

1,050 

1,230

1,280 

1,150 

1,070 

969 

913

934 

2,210 

3,480 

2,680 

1,860

1,800 

9,180 

17,400 

7,150 

3,370 

2,140

Jan.

1,600 

1,190 

1,050 

980 

*955

955 

934 

857 

808 

815

767 

747 

892 

892 

822

822 

760 

708 

836 

7,360

11,500 

9,300 

4,090 

2,460 

1,910

1,650 

1,410 

1)1,300 

1)1,200 

1,150 

1,120

Month

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Hay 

June 

Julj 

Augu 

Sept

Wa

ber .......................

mber . . . 

mber . . .

lendar year 194 

ary

1 ....................

ember .....................

ter year 1949-50 ..........

Feb.

1,110 

1,100 

1,100 

1,320 

1,550

1,550 

1,360 

1,500 

1,230 

1,150

1,110 

1,190 

2,200 

2,320 

3,760

5,080 

*2,930 

2,260 

2,580 

2,080

1,910 

3,370 

3,770 

10,900 

6,420

9,850 

4,520 

2,720

Secondf dot-days

60,001 

97,594 

94,126

668,049

61,840 

81,940 

92,470 

73,780 

69,960 

86,580 

43 , 958 

27,422 

14,594

804,265

Mar

2,200 

2,080 

10,000 

12,000 

7,600

,100 

,800 

,000 

,800 

,650

,450 

,300 

,220 

,150 

,170

,600 

,000 

,800 

,840 

,930

,720 

,520 

,080 

,800 

,700

,600 

,860 

,700 

,500 

,650 

,650

Maximum

9,000 

15,000 

17,400

17,400

11,500 

10,900 

12,000 

6,440 

3,760 

6,340 

2,580 

4,510 

2,460

17,400

Apr.

4,170 

3,220 

2,520 

2,020 

1,910

2,020 

1,750 

1,600 

1,750 

1,650

1,600 

3,860 

3,520 

2,580 

5,210

6,440 

5,490 

3,000 

2,260 

2,460

2,320 

1,960 

1,650 

1,460 

1,410

1,230 

1,230 

1,150 

1,110 

1,230

May

1,410 

1,650 

1,460 

1,410 

2,020

1,700 

1,460 

1,320 

1,360 

1,410

2,140 

3,760 

3,680 

3,370 

2,930

2,580 

2,930 

2,390 

2,200 

1,910

1,960 

2,320 

1,910 

1,750 

2,080

3,000 

3,680 

2,860 

2,720 

2,390 

2,200

Minimum

388 

450 

913

219

708 

1,100 

1,150 

1,110 

1,320 

1,550 

801 

443 

210

210

June

2,720 

3,000 

3,220 

3,520 

3,140

2,080 

1,650 

1,550 

1,700 

2,200

3,220 

3,300 

2,580 

2,390 

2,320

3,220 

3,680 

3,000 

3,220 

3,370

3,000 

3,990 

6,340 

3,070 

2,020

2,020 

2,320 

2,520 

3,220 

3,000

Mean

1,936 

3,253 

3,036

1,830

1,995 

2,926 

2,983 

2,459 

2,257 

2,886 

1,418 

885 

486

2,203

July

2,580 

2,140 

2,080 

2,140 

2,080

1,910 

1,650 

1,460 

1,750 

1,410

1,150 

1,110 

1,360 

1,360 

1,190

969 

1,060 

1,190 

1,600 

1,320

1,230 i,2eo

l,2fO 

1,230 

1,110

1,010 

913 

1,220 

1,410 

9E5 

8C1

Per 

square 

mile

9.73 

16.3 

15.3

9.20

10.0 

14.7 

15.0 

12.4 

11.3 

14.5 

7.13 

4.45 

2.44

11.1

Aug.

808 

822 

695 

588 

561

583 

747 

623 

583 

556

550 

544 

529 

529 

4,510

2,100 

1,070 

822 

714 

671

617 

566 

1,580 

1,650 

1,010

760 

635 

566 

513 

477 

443

Sept.

410 

406 

401 

392 

370

345 

325 

302 

298 

294

287 

279 

265 

265 

262

255 

235 

229 

229 

222

219 

210 

210 

281 

1,700

2,460 

1,320 

913 

671 

539

Runoff

Inches

11.21 

18.24 

17.. =9

124.84

11.56 

15.31 

17.28 

13.79 

13.07 

16.18 

8.22 

5.12 

2.73

150.30

Acre-feet

119,000 

193,600 

186,700

1,325,000

122,700 

162,500 

183,400 

146,300 

138, BOO 

171,700 

87,190 

54,390 

28,950

1,595,000

Peak discharge (base, 12,600 sec.-ft .) . Nov. Zl (time and discharge unknown); DJC. 2 (2 a.m.)

15,900 sec.-ftT; Dec. 28 112:30 1 a.m.; 20,900 sec.-ft.; Jan. 21 (3 a.m.) 13,500 ssc.-ft.; Feb. 24 

(6 a.m.) 13,500 sec.-ft.; Feb. 26 (10:30 a.m.) 13,100 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Oct. 28 to Nov. 16, Nov. 25-27, Jan. 3, 4, Jan. 30 to Feb. 3, Mar. 

3-18j discharge computed on basis of records for nearby streams.
STILLAGUAMISH RIVER BASIN 

Boardman Creek near Silverton, Wash.

Location.--Water-stage recorder, lat. 48°04'00", long. 121°40'30", in Srt£ sec. 20, T. 

ciu W., R. 9 E., at road crossing at mouth, 5 miles west of Silverton.

Drainage area. 8.4 square miles.

Records available .--June to September 1950 (discontinued).

149

Remarks. Records good. Ho diversion or regulation.

Discharge, in second feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

Month

Ootobe r . . ..... ..........

Novembe r . ..................

December ......................

Calendar year ........

January ........... ......... .

February ..... . ... ..... . . .

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

Anril . . . . . . ... ...... ... .

May....... .. ........... . .

June ............ ...... . .

July .... .... ..... ..........

August .............. .... ....

September . ...... . . .........

The period ........ . .......

Feb.

Second 

foot-days

6,632

3,767

2,064

912.5

-

Mar.

Maximum

450

215

575

272

-

Apr. May

Minimum

95

63

2O

5.4

-

June

a210

226

256

276

205

122

95

114

141

202

272

230

179

169

185

272

280

230

268

264

195

365

450

182

135

160

198

237

268

245

Mean

221

122

ye .6

30.4

-

P 

sq 

m

July

215

185

188

£02

185

154

Aug.

6~>

60

44

39

37

48

133 I 54

118

157

193

87

105

138

114

87

80

103

118

149

114

118

116

114

103

99

75

7O

123

9^

64

63

42

39

37

35

33

30

42

576

123

67

48

41

36

30

33

141

135

59

41

33

28

24

22

20

Sept.

19

16.5

14.5

14.5

14

13

12

11

10.5

9. !

9.7

8.8

8.8

8.0 "".0

6.6

6.0

6.0

5.6

5.6

5.6

5.4

31

157

272

95

40

30

er Runoff la re i 

l e Inches Acre feet

~

-

_

26.3 29.~36 137l50

14.5 16.68 7,470

7.93 9.14 4,090

3.62 4.04 1,810

2e,520

a No gage-height record; discharge computed on basis of records arby stre
150 STILLAGUAMISH RIVER BASIN

Benson Creek near Granite Falls, Wash.

Location.--Water-stage recorder, lat. 48°05'30", long. 121°46'30", in NEi sec. 16, T. 

3U N., R. 8 E., 600 feet upstream from mouth and 9 miles east of Granite Falls.

Drainage area.--2.7 square miles.

Records available.--June to September 1950 (discontinued).

Extremes. Maximum discharge during period, 37 second-feet June 22 (gage height, 1.82 

feet); minimum, 0.8 second-foot Sept. 21, 22.

Remarks.--Records fair. No known diversion or regulation.

Discharge, in second-feet, water year October 1949 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

Oct. Nov. Dec. Jan.

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Th

mber . . ..... ............

lendar year 

ary

st

ember ........ .... .......

e period ...................

Feb.

Secondfoot-days

378.3 

122.6 

100.5 

72.5

.

Mar

Maximum

22

7.9 

14.5 

11

-

Apr. May

Minimum

9.1 

2.2

1.7 

.8

-

June

a!4 

14.5 

15 

16 

14

 LZ 

11 

1O.5 

10.5 

12.5

13 

13 

11.5 

11.5 

11.5

13 

12.5 

12 

12 

11.5

10 

19 

22 

14.5 

12

10.5 

10 

10 

9.7 

9.1

Mean

12.6 

3.95 

3.24 

2.42

-

July

7.9 

6.9 

6.3 

5.8

5.0

4.7 

4.2 

4.5 

5.3 

4.8

3.9 

3.5 

3.2 

3.0 

3.0

2.9 

2.6 

2.6

6.7 

3.5

2.9 

2.5 

2.3 

2.2 

2.2

2.2 

2.3

5.1 

5.0 

3.1 

2.5

Per 

square 

mile

4.67 

1.46

1.20 

.896

-

Aug.

2.3 

2.2

2.0 

2.1 

2.0

£.4 

2.7 

2.2 

2.0 

1.9

1.7 

1.7 

1.7 

3.4 

14.5

6.5 

4.8 

3.9 

3.5 

3.2

2.7 

3.1 

4.5 

5.3 

3.7

3.1

2.6 

2.4 

2.3 

2.1

2.0

Sept.

.9 

.8 

.7 

.6 

.6

.6 

.6 

.6 

.4 

.3

.2 

.1 

.2 

.2 

.2

.0 

.0 

1.0 

1.0

.8 

.8 

.9 

4.4

9.7

11 

6.5 

4.7 

3.7 

3.1

Runoff

Inches Acre-feet

5.21 750 

1.69 243 

1.38 199 

1.00 144

1,340

a No gage-height record; discharge computed on basis of records for nearby streams.
STILLAGUAMISH RIVER BASIN 151 

Canyon Creek near Granite Falls, Wash.

Location.--Staff gage, lat. 48°07'15", long. 121°55'45", in NEij sec. 5, T. 30 N. , R. 7 E. ,

 at Canyon Creek Lodge, 3 miles northeast of Granite Falls. .Former gages at practically 

same site and at site 1 mile below, both at different daturas.

Drainage area.--57 square miles.

Records available.--June to October 1950 (discontinued). September 1911 tc March 1913

 (gage heights only) at practically same site, December 1928 to September 1932 at site 

1 mile downstream.

Extremes.--Maximum discharge during period June to October 1950 not determined, occurred

 Aug. 15 (gage height, 8.6 feet); minimum not determined, probably occurred during period 

of no gage-height record.

1928-32, 1950: Maximum discharge, 8,000 second-feet Jan. 11, 1932 (gage height, 9.2 

feet, site and datum then in use); minimum, 32 second-feet Aug. 24 to Sept. 6, 1930 

(gage height, 1.38 feet, site and datum then in use).

Remarks.--Records good except those for periods of rapidly changing stage, which are fair,

 and those for periods of no gage-height record, which are poor. No known dlsverlon or 

regulation.

Discharge in second-feet, for the period June to October 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Month

June .......... ...... ... ...

July ....... .......... . . ....

August ................ ... ...

September. ..... ........ ......

October 1-S ................. .

June

81S

867

1,140

1,110

739

512

430

450

485

840

704

858

684

641

704

1,110

990

849

1,130

903

648

2,110

2,490

725

380

584

620

808

832

662

Secondfoot-days

Q 5 785

10, 872

7,879

 3, 385

5,091

-

July

634

560

590

566

470

445

396

440

372

352

304

324

336

296

274

256

226

238

376

300

360

284

308

288

232

247

217

324

405

232

220

Maximum

2,490

634

1,840

550

1,620

-

Aug.

205

ISO

155

97

97

111

97

119

Sept.

95

93

92

85

84

82

81

76

136 70

119 | 63

111

116

121

127

1,840

1,080

435

196

178

161

153

151

704

332

175

132

122

117

114

103

95

60

58

57

56

56

55

55

55

54

54

54

53

52

65

400

550

350

230

140

110

 

Oct.

98

90

85

96

980

792

746

1,620

584

-

_

_

_

_

-

_

_

_

_

-

_

_

_

.

-

_

_

_

_

_

-

Per

Minimum Mean square 

mile _,

380 860 15.1

217 351 6.16

95 254 4.46

52 113 1 98

85 566 9 !93

-

Runoff

Irenes

16.82 7 09

5.14

2 .£1 

3.32

.

Acre-feet

51,140

21 ,560

15,630

6,710 

10,100

105,100

Note. No gage-height record Sept. 8-30; discharge computed on basis of records for nearby streams.

238382 O - 53 - 11
152 STILLAGUAMISH RIVER BASIN

Jim Creek near Arlington, Wash.

Location. Water-stage recorder, lat. 48°10'30", long. 122°03'56", in SE^NWij see. 17, T. 

31 W . , R. 6 E., 1 mile upstream from mouth and 3 miles southeast of Arlington.

Drainage area. --48. 9 square miles.

Records available .--October 1937 to September 19£0.

Average discharge. --13 years, 199 second-feet,

Extremes. --Maximum discharge during year, 4,730 second-feet Dec. 28 (gage height, 9.28 

feet } , from rating curve extended above 1,900 second-feet; minimum, 6.S second-feet 

Sept. 23 (gage height, 1.22 feet).

1937-50: Maximum discharge, that of Dec. 28, 1949; minimum, 5.9 second-feet Sept. 

16, 1943.

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

No' diversion or regulation.

Revisions (water years).--W 1042: 1938-44. W 1092: 1946.

Sating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Feb. 24 to Apr. 20)

are fair.

Oct. 1 to Dec. 27 Dec. 28 to Sept

1.3 19.5 2.6 242 5.0 1,230 1.2 6.1 2.6 206 5.5 1,450

1.5 35 3.0 367 5.5 1,480 1.4 17.0 3.0 33

1.7 59 3.5 547 6.5 2,080 1.6 35 3.5 4"

2.0 105 4.0 752 7.5 2,750 1.8 57 4.0 6E

2.3 167 4.5 380 2.0 87 4.5 8"

1 6

1 6

6

5

.0 1,770

.5 2,120

.5 2,900

2.3 141 5.0 1,150

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

32

27

25

186

305

190

145

103

244

195

220

256

143

102

Nov .

78

73

66

62

58

54

54

63

103

113

318

667

1,100

917

188 458

128 J 299

100

82

74

67

60

56

51

47

45

43

52

509

181

120

95

215

181

154

134

122

176

274

262

796

50 fi

1,350

709

44O

398

-

Dec

734

1,090

566

398

337

305

245

210

210

181

158

145

137

137

192

188

188

176

152

139

145

374

737

Jar..

417

360

310

240

190

199

197

170

159

159

176

163

150

130

110

110

110

125

140

800

1,510

1,480

852

547 488

450 380

1

528 i 30O

2,780! £50

2,790l 235

975 220

598 i 210

488 200

Feb.

200

200

200

250

340

330

320

347

347

311

288

271

546

542

605

805

488

424

437

411

369

542

638

Mar

506

437

914

1,030

925

782

579

506

427

378

326

282

258

245

238

260

1,030

656

617

506

454

437

411

1,800 i 372

1,090

1,3:0

1,000

617

_

.

-

Mrn+h Second 

Month foot-days

October . . ..... .......... . . 4,071

November ... . . ............ 10,300

December . . . 16.300

Calendar year 1949 ......

January . . ..... ........ .....

77,655

10.540

February ....... ... ..... . . 15,828

March ......... ... ...... 14,596

April ........... ... . . . . 10,323

May ..... ............. .... 5,157

June ....... ... .......... ... 4,892

July .............. ... ...... 1,796

August .... ... ......... 1,149.5

September .......... . ...... . 827 .0

323

291

£P3

294

285

271

268

Maximum

509

1,350

2,790

2,790

1,510

1,910

1,030

827

255

516

101

217

147

Water year 1949-50.. . ..... 95,779.5 2,790

Apr.

378

454

437

378

356

296

282

268

266

268

266

556

May

137

151

137

128

157

149

147

137

135

137

181

238

524 i 213

411 1 190

523 j 168

827

782

438

332

326

308

268

250

190

175

145

137

128

126

126

-

159

206

170

183

170

172

183

149

137

163

197

255

165

157

145

141

June

163

172

194

197

161

120

104

306

113

139

168

159

137

133

132

163

174

153

165

153

117

291

516

208

145

131)

124

126

132

117

-

July

101

Per

Minimum Mean square 

mile

25 131 2. 68

54 343 7.01

137 526 10.8

14 213 4.36

110 340 6.95

200 565 11.6

238 471 9.63

126 344 7.03

128 166 3.39

104 163 3.33

27 57.9 1.18

12.5 37.1 .759

7.3 27.6 .564

7.3 262 5.36

9t

87

85

76

71

63

57

85

6E

57

56

57

57

50

44

44

45

66

55

47

45

42

37

34

30

27

52

79

49

39

Aug.

33

2

2

2

7

3

1

19

19

1

1

1

3

8.5

6.5

16.5

13.5

1

1

1

2.5

3

5

217

i

E

t

:

4

7

8

35

31

£

6

q

4

3

:

2

2

2

8

7

3

4

6

2

9

6

5

22

Sept.

20

18.5

18.5

17

16.5

15.5

15.5

14.5

13

12

11

11

11

11

11

11

10

9 .5

9.0

3.5

8.5

7.7

7.3

15.5

122

147

89

74

52

40

-

Runoff

Inches

3.10

7.83

12.40

59.04

B.02

12.04

11.10

7.85

3.92

3.72

1.37

.87

.63

72.85

Acre-feet

8,070

20,430

32,330

154,000

20,910

31,390

28,950

20,480

10,230

9,700

3,560

2,280

1,640

190,000

Peak discharge (base, 1.40O a.a.) 2,470 Bee.-ft.; Eec. 1 (10 p.m.) 1,900

c.-ft.j Dec. 28 (2 a.m-.rT: 730 sec .TFt.; Jan. 21 (3:30 p.m.) 1,630 sec.-ft.; Jan. 22 (3 p.m.)

1,630 sec.-ft.; Feb. 24 (6 a.m.) 2,530 sec.-ft.; Feb. 26 '10 a.m.) 2,580 sec.-ft.; Mar. 3 (10 p.m.)

Note. No gage-height record Jan. 3, 4, 13-20, Jan. 25 to Feb. 7, Apr. 24-26; discharge computed

aeis of records for nearby streams.
STILLASUAMISH RIVER BASIN 153

Cub Creek near Oso, Wash.

Location.--Water-stage recorder, lat. 48°12'20", long. 121°56'10", In Nj sec. 5, T. 31 N 4> 

K. YE., three-quarters of a mile upstream from mouth and 4^ miles south of Oso.

Drainage area.--8.5 square miles.

Records available. April 1949 to December 1950 (discontinued).

Extremes. Maximum discharge during period October 1949 to December 1950, 1,030 second1'eet Dec. 28, 1949 (gage height, 5.50 feet); minimum, 2.5 second-feet July 26 (gage 

height, 0.93 foot).

1949-50: Maximum discharge, that of Dec. 28, 1949; minimum, 2.0 secord-feet July 

6-9, 1949.

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

ftaTural regulation by Twin Lakes. No diversion.

Rating tables, October 1949 to December 1950 (gage height, in feet,

and discharge, in second-feet)

(Shifting-control method used Jan. 20 to Feb. 14, May 14 to 

June 13, Oct. 10 to Dec. 5, 1950)

Oct. I to Dec. 27, 1949 Dec. 28, 1949, to Dec. 31, 1950

1.2 

1.4 

1,6 

1.8 

2.0

2.9

8.5

18.5

33

50

2.3 

2.6 

3.0 

3.5 

4.1

83

124

190

301

475

0.9 

1.1 

1.3

1.5 

1.7

2.0

6.3

13.5

24

37

1.9 

2.1 

2.4 

2.7 

3.0

54

75

112

155

208

3.5 

4.0 

4.6

315

448

Discharge, In second-feet, 1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.0

3.8

4.0

11.5

47

46

33

24

24

33

30

41

34

25

28

27

24

20

17

14

12

10.5

9.8

8.9

7,8

7.5

8.2

32

40

27

22

Nov.

18

15

14

12.5

11.5

10.5

10

12

20

21

60

100

150

130

80

58

43

34

30

25

23

23

36

36

85

93

216

148

88

82

Dec.

72

217

142.

91

69

68

59

49

46

43

38

34

30

27

32

42

42

39

34

29

27

52

113

142

95

91

471

648

248

148

102

Jan.

81

67

60

47

40

43

43

36

34

36

34

30

27

24

21

21

21

22

26

109

276

285

177

107

85

70

65

60

55

52

50

Feb.

50

50

50

60

70

67

66

76

64

55

53

65

112

112

160

160

120

90

95

90

80

110

130

350

220

350

180

120

_

-

Mar.

100

80

170

200

180

150

120

95

80

70

60

50

47

43

40

42

200

120

110

f95

f81

74

70

64

60

56

50

47

49

47

46

Apr.

60

76

74

67

62

49

46

46

45

44

44

90

88

72

96

140

135

100

72

54

52

50

41

34

32

30

28

25

24

22

Hay

24

25

23

22

28

31

31

29

25

22

21

21

22

22

21

19.5

24

27

29

28

28

25

22

21

18.5

17

20

21

21

20

19

June

16

14.5

12.5

10.5

13.5

13.5

12

11.5

10.5

10

10

9.5

10

9.5

9.5

9.2

9.5

10,5

41

17.5

13

15.5

51

45

31

22

18

16,5

13.5

12

-

July

12

15.5

12.5

8.1

6.3

4.9

4.9

5.2

6.3

6.6

6.9

6.6

5.7

7.5

5.7

4.5

4.0

3.8

5.5

5.2

4.5

4.0

3.4

3.2

2.8

2.6

3.0

4.9

6.9

6.3

5.7

Aug.

5.2

4.7

4.2

3.6

3.4

3.8

4.2

4.2

4.2

4.2

4.2

4.0

4.2

5.2

11.5

13

8.4

7.5

6.6

6.6

6.3

6.3

7.5

7.2

6.9

6.6

6.6

6.0

6,3

6.3

6.0

Sept.

4.9

4.2

4.2

4.0

3.8

3.8

3.4

3.4

3.4

3.4

3,4

3.6

4.5

4.5

4.2

3.8

3.4

3.4

3.2

3.0

3.2

3.0

3.0

4.7

7.8

9.5

11

10.5

9.2

8.1

-

sec. :M» i\jt, -ft. j Dec. 1>CU. 28C.O ^ J-fc. uu CL.II1.; l.f\JW oeu. -i <*. ) JcLil. tt ^±**>v y.iu.y jw* ocv-.-j-u.

f Computed on basis of partly estimated gage-height record.

Note. No gage-height record Nov. 8-15, Jan. 3-6, 12-19, Jan. 25 to Feb. 5, Feb. 15 to Mar. 19, 

ir. 22 to Apr. 26j discharge computed on basis of recorded range in stage and records for nearby 

;T»**ams.
STILLAGUAMISH RIVER BASIN

Discharge, In second-feet, of Cub Creek near Oso, Wash., 1949-50 Continued

1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7.5

6.9

6.0

7.2

16.5

33

27

60

66

135

96

57

41

32

27

24

21

27

34

34

29

25

20

18.5

28

32

39

48

49

55

63

Nov.

71

77

82

75

76

61

51

43

37

33

29

26

24

23

25

72

75

60

45

43

44

46

45

68

73

68

120

109

75

62

Dec.

56

47

45

43

41

60

100

80

85

110

80

60

50

40

45

50

90

60

50

65

70

75

70

120

110

80

85

100

105

150

120

Jan. Feb. Mar. Apr. May June July Aug. Sept

Note. No 

Arlington.

gage-height record Dec. 6-31; discharge computed on basis of records for Jim Creek near

monthly discharge, In second-feet, 1949-50

Month

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

April .........................

May...........................

luly. .........................

December ......................

Calendar year 1950 .........

Secondfoot-days

676.0 

1,684.5 

3,340

-

2,104 

3,205 

2,696 

1,798 

727 

498.2 

185.0 

184.9 

145.5

17,244.1

1,164.6 

1,738 

2,342

16,788.2

Maximum

47 

216 

648

-

285

350 

200 

140 

31 

51 

15.5 

13 

11

648

135 

120 

150

350

Minimum

3.8 

10 

27

-

21 

50 

40 

22 

17 

9.2 

2.6 

3.4 

3.0

2.6

6.0 

23 

40

2.6

Mean

21.8 

56.1 

108

-

67.9 

114 

87.0 

59.9 

23.5 

16.6 

5.97 

5.96 

4.85

47.2

37.6 

57.9 

75.5

46.0

Per 

square 

mile

2.56 

6.60 

12.7

-

7.99 

13.4 

10.2 

7.05 

2.76 

1.95 

.702 

.701 

.571

5.55

4.42

6.81 

8.88

5.41

Runoff

Itches

2.96

7.37 

14.61

-

9.21 

14.02 

11.80 

7.87 

3.18 

2.18 

.81 

.81 

.64

75.46

5.10

r ee

10.25

Aore-feet

1,340 

3,340 

6,620

-

4,170 

6,360 

5,350 

3,570 

1,440 

988 

367 

367 

289

34,200

2,310 

3,450 

4,650

73.47 35,310
STILLAGUAMISH RIVER BASIN li 

North Fork StillaguamiEh River near Darrington, Wash.

Location. Water-stage recorder, lat. 48°16 I 30", long. 121°42'00", in NW^ sec. 7, T. 32

 N., R. 9 E., at county road bridge 5 miles west of Darrington.

Drainage area.--39.1 square miles.

Records available.--June to September 1950.

Extremes.--Maximum discharge during period, 2,850 second-feet June 22 (gage height, 4.51

 i'eet); minimum, 63 second-feet Sept. 23 (gage height, 1.25 feet).

Remarks.--Records good. No known diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

Month

October .......................

November ........ .............

December .... . . .............

Calendar year .........

January ........... ...........

February ......... ............

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

April . ...... ................

May .................. ........

June 22-30 ....................

July ................ ...... .

August .................... ...

September . . ................ .

The period ............... , .

Feb.

Secondfoot-days

_

_

10, 656

19,244

8,853

4,202

-

Mar

Maximum

1,690

1,050

1,380

635

-

Apr. May

Minimum

876

304

138

65

-

June

_

_

_

-

_

_

_

-

.

,

_

_

-

.

_

_

_

-

1,510

1,690

1,120

876

892

998

1,160

1,250

1,160

Mean

1,184

621

286

140

-

July

1,050

956

964

989

924

852

72E

694

78E

61C

55f

55f

64?

58C

52C

490

53E

56£

661

532

550

574

556

526

484

436

376

478

448

328

304

Per 

square 

mile

_

30.3

15.9

7.31

3.58

-

Aug.

328

304

240

202

198

202

202

182

174

174

178

170

160

213

1,380

580

388

310

274

256

229

202

526

412

286

240

207

182

166

150

138

Sept

132

127

125

120

110

104

100

98

94

88

88

85

81

80

78

76

73

69

69

68

65

65

65

94

418

635

358

286

198

153

Runoff

Inches Ac re- feet

10.14 21,140

18.30 38,170

8.42 17,560

4.00 8,330

85,200
156 STILLAGUAMISH RIVER BASIN

North Pork Stillaguamish River near Arlington, Wash.

Location. --Water-stage recorder, lat . 48°15'45", long. 122°02'45", in SE^FW^ sec. 16, T. 

an N. , R. 6 E., 6 miles northeast of Arlington, 7 miles upstream from irouth, and 8 miles 

downstream from Deer Creek. Datum of gage is 89.34 feet above mean sea level, datum of 

1929.

Drainage area. 269 square miles.

Records available. July 1928 to September 1950.

Average discharge. --22 years, 1,725 second-feet.

Extremes. Maximum discharge during year, 25,000 second-feet Dec. 28 (gage hsight, 12.32 

reet) ; minimum, 276 second-feet Sept. 22, 23 (gage height, 1.33 feet).

1928-50: Maximum discharge, £7,700 second-feet Feb. 26, 1932 (gage height, 12.7 

feet); minimum, 88 second-feet Sept. 23, 1938.

Revision.--W 832: Drainage area.

Rating tables, water year 1949-50, except period of Ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1-28 Oct. 28 to Sept. 30

1.9 450 4.0 1,770 1.3 265 4.0 2,O30 

2.2 595 4.5 2,200 1.6 385 4.5 2,520 

2.5 755 5.0 2,700 2.0 575 5.0 3,040 

3.0 1,060 6.0 3,890 2.5 860 6.0 4,240 

3.5 1,390 7.0 5,600 3.0 1,200 7.0 5,870 

3.5 1,590 8.0 8,040

Discharge, in second-feet, water year October 1949 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

Oct.

540 

500 

472 

1,750 

2,540

1,930 

1,390 

1,090 

3,210 

4,160

4,820 

3,630 

2,160 

1,570 

2,410

1,690 

1,360

1,180 

1,060 

960

9OO 

930 

840 

810 

782

755 

840 

7,160 

2,940 

1,940 

1,590

Nov.

1 390 

1 £70 

1 200 

1 130

1 060

990 

955 

990 

1,160 

1,160

2,500 

6,260 

7,800 

7,100 

3,720

2,520 

*2,030 

1,760 

1,550 

1,350

1,240 

1,750 

3,820 

3,550 

7,100

8,740 

16,200 

8,300 

4,830 

3,720

Dec .

5,260 

9,920 

4,680 

3,260

2,820

2,520 

2,120 

1,850 

1,760 

1,550

1,390 

1,310 

1,240 

1,200 

1,390

1,390 

1,310 

1,270 

1,130 

1,060

1,060 

2,220 

3,420 

3,040 

2,080

2,220 

9,310 

20,500 

10,000 

5,680 

3,840

Jan

3 , 040 

2,520 

2,200 

1,800 

1,500

*1,400 

1,300 

1,200 

1,150 

1,100

1,050 

1,000 

960 

920

a880

aS40 

a820 

a8 00 

a900 

aVjOOO

10,000 

8,840 

4,990 

3,260 

a2, 700

a2,100 

1,850 

1,720 

1,510 

1,430 

1,240

Feb

1,240 

1,160 

1,130 

1,350 

1,720

1,980 

1,720 

1,900 

1,670 

1,550

1,550 

1,590 

2,930 

2,930 

*5,150

6,060 

3,840 

3,040 

3,260 

2,720

2,520 

3,600 

3,940

8,560 

6,660

11,600 

5,870 

3,840

Month SecondMontn foot-days

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber . 

mber .

lendar y ear 194

h ^

ember .... .............

57,909 

07,145 

11,800

71,043

72,020 

95,080 

06,190 

79,350 

76,030 

92,650 

47,180 

27,531 

17,193

ter year 1949-50 ..... .. . 890,078

Mar 1 Apr

3,O40 

2,820 

8,090 

11,900 

7,560

6,060 

4,100 

3,370 

2,930 

2,520

2,170 

1,940 

1,800 

1,670 

1,670

2,480 

5,870 

4,53O 

4,240 

3,260

3,480 

2,930 

2,420 

2,120 

1,980

1 , 900 

2,120 

1,940 

1,720 

1,800 

1,760

Maximum

7,160 

16,200 

20,500

20,500

10,000 

11,600 

11,900 

6,160 

3,970 

5,320 

2,720 

4,020 

3,160

20,500

3,440 

3,480 

2,820 

2,370 

2,170

2,080 

1,850 

1,720 

1,670 

1,590

1,590 

3,450 

3,260 

2,620 

4,660

6,120 

6,160 

3,600 

2,820 

2,930

2,930 

2,520 

2,170 

1,900 

1,800

1,630 

1,550 

1,470 

1,470 

1,510

May

1,720 

1,900 

1,760 

1,670 

1,940

1,760 

1,630 

1,590 

1,670 

1,720

2,420 

3,600 

3,600 

3,370 

3,040

2,720 

3,040 

2,720 

2,620 

2,320

2,270 

2,720 

2,320

2,080 

2,370

3,040 

3,970 

3,040 

2,620 

2,420 

2,370

Minimum

472 

955 

1,060

318

800 

1,130 

1,670 

1,470 

1,590 

1,940 

860 

500 

282

282

Peak discharge (base, 11,500 sec. -ft. ) . Oct. 28 (9:30 a.m.)

June

2, 

3, 

3, 

3,

3,

2, 

1, 

1, 

2,

3, 

3, 

3, 

2, 

2,

3, 

4, 

3, 

3, 

3,

3, 

4, 

5, 

3, 

2,

t', 

2, 

3, 

3,

Mean

1,868 

3,572 

3,606

2,112

2,323 

3,396 

3,425 

2,645 

2,453 

3,088 

1,522 

888 

573

2,439

820 

040 

260 

720 

260

520 

080 

940 

980 

420

260 

480 

040 

820 

720

480 

100 

370 

600 

720

150 

020 

320 

150 

420

320 

520 

930 

150 

040

9.0 11,000 

10.0 14,500 

11.0 18,700 

12.0 23,500

1950

July

2,

z>

2,

2,

l! 

1, 

2,

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1,

Per 

square 

mile

6.94 

13.3 

13.4

7.85

8.64 

12.6 

12.7 

9.83 

9.12 

11.5 

5.66 

3.30 

2.13

9.07

720 

370 

320 

370 

270

080 

85 0 

630 

080 

630

430 

310 

470 

470 

310

130 ieo

240

5EO 

350

240 

240 

240

160 

ICO

990 

920 

2CO 

470 

020 

860

Aug.

4,

1, 

1,

2, 

1,

800 

800 

734 

658 

624

619 

679 

608 

575 

550

540 

530 

520 

540 

020

940 

160 

890 

770 

729

685 

641 

040 

310 

920

740 

685 

624 

570 

530 

500

Sept

470 

466 

462 

452 

426

408 

390 

376 

362 

353

344 

340 

336 

332 

326

320 

312 

304 

300 

296

290 

282 

282 

398 

1,600

3,160 

1,350 

1,060 

770 

624

Runoff

Inches

8.01 

14.81 

15.46

106.60

9.96 

13.15 

14.68 

10.97 

10.51 

12.81 

6.52 

3.81 

2.30

123.07

Acre-feet

114,900 

212,500 

221,800

1,529,000

142,800 

188,600 

210,600 

157,400 

150,800 

183,800 

93,580 

54,610 

34,100

1,765,000

11,600 sec. -ft.; Nov. 27 (7 a.m.)

20,100 

(1:30 . * Winter discharge measurement made"on this day.

a No gage-height record; discharge computed on basl

Note. Stage-discharge relation affected by ice Jan

of records for nearby streams. 

3-14, Jan. 28 to Feb. 4.
STILLAGUAMISH RIVER BASIN 157

Squire Creek near Darrington, Wash.

Location. --Water-stage recorder, lat. 48°16 I 15", long. 1C1°39'4S", in 3F.£ sec. 8, T. 32 N.,

 K~9~E., at road crossing, a third of a mile apstream from Ashton Creek and 3 miles wes-t

of Darrington.

Drainage area. --19. 6 square miles. 

Kecords available. June to September 1950. 

Extremes . Maximum discharge dujring period, 1,500 second-feet Aug. 15 (gage height, 5.4i>

 FeeTT; minimum, C9 second-feet Sept. 23 (gage height, 1.15 feet).

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

Ho known diversion or regulation.

Discharge, -feet, June to September 1950

Day

1

2

3

4

5

6

7

8

9

June

a320

a350

a380

a430

a35o

215

191

193

210

10 289

11

12

13

14

15

Month

The period. ....

392

399

334

307

325

July

376

328

349

370

349

322

262

270

304

206

189

206

254

222

187

Secondfoot-days

-

Aug.

154

138

110

99

98

105

104

94

94

95

100

98

90

136

799

Sept.

67

PS

65

61

56

53

50

47

45

44

44

42

41

39

37

Maximum

600

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

2S

29

30

31

Minimum

-

June

455

472

430

490

472

385

600

508

27?

217

257

310

392

455

416

-

Mean

-

July

189

215

234

313

217

241

26?

257

246

222

197

168

229

187

138

138

Aug.

208

143

123

117

114

105

102

217

170

116

102

94

84

79

74

67

18.4

IE. 6

3.18

-

Sept.

35

35

34

33

31

30

30

30

63

210

224

120

99

76

61

-

Runoff

Inches Acre-feet

20.52 21,460

14.51 15,170

48,730

No gage-height record; discharge computed on basis of records for nearby streams

Boulder River near Oso, Wash.

long. 121°46'45", in NVf£ sec. 9, T. 32 N. 

upstream from mouth and 7 miles east of

Location.--Water-stage recorder, lat. 48°16'45

R. S E., at road crossing, a third of a mil

Oso.

Drainage area.--27.0 square miles.

Kecords available.--June to September 1950 (discontinued). 

Extremes.--Maximum discharge during period, 1,410 second-feet Aug. 15 (gage height, 4.90

reet), from rating curve extended above 400 second-feet; minimum, 48 second-feet Sept.

20 (gage height, 1.18 feet). 

Remarks. Records excellent. No known diversion or regulation.

Discharge, in second-feet, June to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

June

a250

a300

a350

a350

a32o

280

244

226

234

303

414

428

379

359

359

Month

September. .......

The period. ....

July

403

362

359

376

356

336

283

283

343

278

231

226

264

264

234

Secondfoot-days

2,743

-

Aug.

179

183

160

136

124

130

138

128

122

118

118

118

114

152

304

Sept.

91

96

100

92

83

77

72

69

67

66

66

66

64

63

61

Maximum

303

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Minimum

49

-

June

486

545

467

505

505

435

644

688

403

303

292

330

410

486

456

-

Mean

91.4

-

July

203

212

246

352

294

267

280

283

272

249

221

198

300

283

207

179

Aug.

362

226

177

156

153

150

143

276

231

169

143

133

119

107

100

91

Per square 

mile

3.39

-

S°pt.

58

56

54

51

49

49

51

53

110

254

303

185

143

106

88

-

Runoff

Irches

3.78

-

Acre-feet

5,440

56,730

No gage-height record; discharge computed on basis of records for nearby streams.
158 STILLAGTIAMISH RIVER BASIN

Deer Creek at Oso, Wash.

Location.-Mater-stage recorder, lat. 48°17'00", long. 121°55'45", in SE-j ssc. 5, T. 32 N. , 

H. 7 E., 1-f miles upstream from mouth and Oso. Former gage at site half a mile upstream at different datum.

Drainage area.--71 square miles (revised).

Records available.--August 1917 to September 1930, June to September 1950 (discontinued).

Average discharge. 13 years (1917-30), 493 second-feet.

Extremes.--Maximum discharge during period June to September 1950, 6,100 second-feet June 

W (gage height, 4.85 feet), from rating curve extended above 1,000 second-feet; minimum, 38 second-feet Sept. 23 (gage height, 0.38 foot).

1917-30, 1950: Maximum, discharge, 10,400 second-feet Dec. 12, 1931 (gage height, 

11.7 feet, from high-water mark, site and datum then in use); .minimum, 18 second-feet 

Sept. 5, 1930 (gage height, 0.18 foot, site and datum then in use).

Remarks.--Records good. No diversion or regulation.

Discharge, In second-feet, for the period June to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Month

June 15-30 ...... ..... ....

July .................... .

Augu 

Sept

st ............. ..........

ember . ..................

The period. .................

June

.

_

_

_

-

_

_

_

-

_

_

_

_

1,250

1,690

1,740

1,310

1,590

1,560

1,160

2,550

2,230

1,050

775

792

980

1,200

1,340

1,140

-

Second 

foot-days

22 357

12^993

7,985 

5,968

_

July

930

801

309

809

710

621

517

505

636

448

380

365

420

370

320

276

299

304

385

287

276

269

254

228

200

181

166

386

429

228

184

Maximum

2,550 

930

2,570 

2,100

_

Aug.

164

150

133

119

112

121

135

110

98

91

88

84

78

100

2,570

516

272

203

171

148

131

125

933

329

221

174

150

133

119

108

99

Sept

93

85

81

77

71

66

65

63

59

57

55

53

50

49

48

46

44

43

42

42

40

39

38

161

1,200

2,100

464

338

228

171

-

Minimum Mean

775 1,397 

166 419

78 258 

38 199

_

Per 

square 

mile

19.7

5.90

3.63 

2.80

_

Runoff

Inches

11.71

6 81

4.18 

3.13

_

Acre-feet

44 340

25^770

15,840 

11.840

97,790
3TILLAGUAMISH RIVER BASIN

Armstrong Creek near Arlington, Wash.

Location. - -Water- stage recorder, lat. 48° 13'15", long. 122° 08'00", in NVf£ sec. 35, T. 32

a., K. 5 E., at Northern Pacific Railroad culvert, 1 mile north of Arlington. 

Drainage area.--7. 2 square miles. 

Kecords available.--June to September 1950.

Extremes. Maximum discharge during period, 57 second-feet Sept. 26 (gage height, 0,76 

 foot); minimum, 3.0 second-feet Sept. 6 (gage height, 0.46 foot). 

Remarks. Records fair. No known diversion or regulation.

Discharge, In second-feet, June to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

June

a5

a5.5

a6

a6

5.5

5.5

6.1

6.1

6.1

6.1

6.8

6.8

8.6

7.6

6.8

The period. ....

July

6.1

6.1

6.1

5.5

5.5

4.9

4.9

7.6

8.6

7.6

6.1

5.5

4.9

4.3

4.3

foot-days

-

Aug.

4.3

4.3

4.3

3.8

3.8

3.8

4.3

5.0

4.3

4.3

3.8

3.8

3.8

4.9

8.6

Sept.

3.8

4.3

3.8

3.8

3.4

3.4

3.8

3.8

4.3

4.9

4.9

4.9

4.9

4.9

4.9

Maximum

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Minimum

-

June

6.1

6.1

6.1

6.1

5.5

5.5

10.5

23

12

9.6

7.6

7.6

6.8

6.8

6.1

-

July

.9

.3

.3

i.l

.9

.9

.9

.9

.3

.3

.3

.3

.5

.6

i.l

.9

Mean

-

Aug.

6.1

4.3

4.3

3.8

4.3

3.8

4.3

6.8

6.1

5.5

3.8

3.8

3.8

3.8

3.8

4.3

mile

1.02

-

Sept.

4.9

4.9

4.3

4.3

3.8

3.4

3.8

3.8

7.6

12

30

10.5

6.8

5.5

4.9

-

Runoff

Inches Acre--feet

1.14 436

1,390

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

Pilchuck Creek near Bryant, Wash.

Location.--Water-stage recorder, lat. 48°16'00", long. 122°09'45", in NEij sec. 16, T. 32

Jl., K. 5 E., at highway bridge 2 miles north of Bryant. Former gage at site 100 feet

downstream at different datum. 

Drainage area. 51 square miles (revised).

Heeoras available.--March 1929 to September 1931, June to September 1950. 

Jixtremes. Maximum discharge during period June to September 1950, 3,S60 second-feet Sept.

2b (gage height, 5.75 feet); minimum, 6.2 second-feet Sept. 13, 15, 19, 20 (gage height,

1.58 feet).

1929-31, 1950: Maximum discharge, that of Sept. 26, 1950; minimum, 0.5 second-foot

Aug. 29 to Sept. 1, 1931 (gage height, 0.90 foot, site and datum then in use). 

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

No known diversion or regulation.

Discharge, In second-feet, June to September 1950

Day

1

2

3

4

5

6

7

8

9

1011

12

13

14

15

June

_

-

-

-

_

-

_

-

-

_

-

-

h!26

a!35

a!55

July

113

96

94

102

113

102

83

81

141

83

65

57

68

54

45

Aug.

23

18.5

15.5

14

13.5

16

52

32

21

15.5

14

12

11

13.5

406

Sept.

13.5

12

11.5

10.5

9.S

9.4

8.9

8.4

7.8

7.3

6.8

6.5

6.2

6.2

6.2

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

June

a!90

a200

a 150

al70

166

f!32

f304

385

185

148

138

145

152

155

135

-

July

40

40

40

61

52

37

35

29

25

23

19

17.5

73

141

54

33

Aug.

152

70

45

35

29

25

23

173

96

65

43

33

27

22

17.5

15.5

Sept.

6.5

6.5

6.5

6.2

6.2

6.5

6.8

7.8

23

382

1,250

232

148

94

68

-

Month

The period. ....

Second - 

foot-days

3,171 

2,016.5 

1,548.5 

2,381.1

-

Maximum

385 

141 

406 

1,250

-

Minimum

126 

17.5 

11 

6.2

-

Mean

176 

65.0 

5O.O 

79.4

-

Per square 

mile

3.45 

1.27 

.980 

1.56

-

Runoff

Inches

2.31

1.47 

1.13 

1.74

-

Acre-feet

6,290 

4,000 

3,070 

4,720

The perloa..... 18,080

a Ho gage-height record; discharge computed on basis of rec 

f Computed on basis of partly estimated gage-height record, 

h Computed from staff-gage reading.

 ecords for nearby streams

'ri _
160 STILLAGUAMISH RIVER BASIN

Cavanaugh Lake near Oso, Wash.

Location. Staff gage, lat. 48° 19'30", long. 122° 19'15", in NW^NW^ sec . 26, T. 33 N. . R. 

6 E., 5 miles northwest of Oso.

Drainage area.--6.7 square miles.

Records available.--June to September 1950.

Extremes --Maximum gage height observed during period, 2.31 feet June 29 tc July 4; minimuF~observed, 1.32 feet July 27.

Remarks.--Gage read once daily. No diversion or regulation.

Sage height, In feet, June to September 1950

Day

1

2

3

4

5

6~7

8

9

10

11

12

13

14

15

June

2.07

2.05

1.99

1.96

1.92

1.88

1.86

1.85

1.84

1.83

1.81

1.80

1.80

1.82

1.83

July

2.31

2.31

2.31

2.31

2.24

2.14

2.07

2.03

1.99

1.94

1.88

1.83

1.78

1.73

1.68

Aug.

1.40

1.59

1.38

1.58

1.36

1.38

1.38

1.58

1.38

1.37

1.37

1.36

1.34

1.36

1.55

Sept.

.58

.58

.57

.57

.57

1.57

1.56

1.55

1.55

1.54

1.54

1.54

1.54

1.54

1.53

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

June

1.83

1.83

1.84

1.84

1.84

1.85

2.01

2.17

2.22

2. 26

2.27

2.29

2.50

2.31

2.31

-

July

1.63

1.60

1.56

1.56

1.53

1.49

1.47

1.43

.40

.37

.35

.32

.36

.40

.40

.40

Aug.

1.62

1.60

1.58

1.58

1.56

1.54

1.52

1.61

1.64

1.63

1.62

1.61

1.59

1.58

1.57

1.57

Sept.

.52

.52

 .51

.50

.50

.50

.50

.50

.55

.75

.07

.22

.26

.26

.24

-

Portage Creek near Arlington, Wash.

Location. Water-stage recorder, lat. 48°10'45", long. 122°11'45", in NW£ sec. 17, T. 31

 H. ," R". 5 E., at U. S. Highway 99, 3 miles west of Arlington.

Drainage area.--9.2 square miles.

Records available.--June to September 1950 (discontinued).

Extremes. Maximum discharge during period, 41 second-feet Sept. 26 (gage height, 1.32

 feet), from rating curve extended above 15 second-feet; minimum, 9.2 second-feet Aug. 

29, 31 (gage height, 1.01 feet).

Remarks.--Records good except those above 20 second-feet, which are fair. No known diversion or regulation.

Discharge, In second-feet, June to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

June

a!3

a!4

al5

a!5

14.5

14.5

15.5

15.5

14.5

14

14

14

14

13.5

13.5

September. .......

The period .....

July

13.5

13.5

13.5

13

13

13

13

13.5

13.5

13.5

13.5

13.5

13

13

13

Secondfoot-days

399

364.5

-

Aug.

13

13

13

13

13

13

12

12

12

13

13

12

12

13.5

17

Sept.

10.5

11.5

11.5

12

11.5

11.5

11.5

11.5

11.5

11.5

11.5

11.5

11.5

11.5

11

Maximum

26

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Minimum

10.5

-

June

13

13

13

12

12

13

17.5

22

16

15.5

14.5

14.5

14.5

14

14

-

Mean

12.1

-

July

12

12

12

14.5

13

12

12

12

12

12

12

13

13.5

12

13

13

Aug.

13.5

13

12

11.5

11.5

11.5

11.5

13

12

12

12

12

11.5

11

11

11

Per square 

mile

1.32

-

Sept.

11.5

11

11

11

11

11.5

11.5

11.5

14

16

26

13

11.5

11.5

11

-

Runoff

Inches

1.47

-

Acre-feet

859

723

3,140

a No gage-height record; discharge computed on basis of records for nearby streams.
STILLAGUAMISH RIVER BASIN 161

Fish Creek near Arlington, Wash.

Location. Water-stage recorder, lat. 48°10'30", long. 122°13'30", in NWi sec. 18, T. 

31 M., R. 5 E., three-quarters of a mile upstream from mouth and 4| miles west of 

Arlington.

Drainage area. 7.6 square miles.

Records available.--June to September 1950.

Extremes.--Maximum discharge during period, 18.5 second-feet Sept. 25 (gage height, 1.42 

feet); minimum, 0.48 second-foot Aug. 9, Sept. 11, 12, 13, 19 (gage height, 0.69 

foot).

Remarks.--Records poor. Some diversion and regulation.

Discharge, in seoond-feet, water year October 1949 to September 1950

Day Oct. Dec. Jan. Feb. Mar. Apr. June July Aug. Sept.

1.1 

1.0 

1.0

0.75 

.75 

.75

.83

1.1 

1.4

.63 

1.3 

1.0

0.75 

,69 

.75 

.63 

,69

.82 

.82 

.69 

.63 

.75

.69 

.82 

1.6

1.2 

.82 

.75 

.69 

.69

.63 

.63 

.89 

1.2 

.89

.69 

.63 

.58 

.58 

.63 

.82

0.58 

.63 

.63 

.75 

.75

.75 

.69 

.69 

.69 

.69

.69 

.69 

.63 

.75 

.69

.69 

.63 

.69 

.58 

.63

.69 

.63 

.75

2.6

3.6

6.0 

£.8 

1.7 

1.4 

1.1

October ........

November .......

December .......

Calendar year

January ........

February .......

March ..........

April ..........

Hay ... ........

June 26-30 ....

July ...........

August .........

September . ....

The period....

Secondfoot-days

4.81

26.66

24.03

34.79

1.1 

1.4 

1.6 

6.0

0.82 

.63 

.58 

.58

0.962

.860

.775

1.16

Per

square 

mile

0.127

.113

.102

.153

0.02 

.13 

.12

.17
162 STILLAGUAMISH RIVER BASIN

Church Creek near Stanwood, Wash.

Location.--Water-stage recorder, lat. 48°14'00", long. 122°19'30", in SE^NW^- sec. 29, 

T. ax N., R. 4 E., 500 feet above highway crossing and 2 miles southeast of Stanwood.

Drainage area. 6.0 square miles.

Records available.--June to September 1950 (discontinued).

Extremes.--Maximum discharge during period not determined, occurred Sept. 2S (gage height, 

1.40 feet); minimum not determined; minimum gage height, 0.50 foot Sept. 10.

Remarks.--Records fair except those above 1.0 second-foot and below 0.13 second-foot, 

which are poor. Diversion during summer for irrigation. No regulation.

Discharge, in second-feet, water year October 1949 to September 195C

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Th'

mber . . .

lendar year 

ary

st ........................

ember .....................

3 period. ..................

Feb.

Secondfoot-days

18.8 

11.5 

7.7 

18.4

-

Mar.

Maximum

1.4 

1.4 

.6 

7.1

-

Apr. Hay

Minimum

0.3 

.2 

.1 

.1

-

June

0.9 

.9 

.8 

.7 

.6

.7 

.8 

.8

.9 

.7

.6 

.5 

.6 

.6 

.6

.5

.4 

.4 

.3 

.3

.3 

.8

1.4 

.9 

.6

.5 

.5 

.5 

.4 

.3

Mean

0.63 

.37 

.25 

.61

-

July

0.3 

.3 

.3 

.3 

.3

.3 

.3

.4 

.6 

.4

.4 

.4 

.3 

.3 

.3

.3 

.5 

.3

1.4 

.4

.3 

.3 

.3 

.3 

.2

.2 

.3 

.6 

.3 

.3 

.3

Per 

square 

mile

0.105 

,062 

.042 

.102

-

Aug.

0.3 

.3 

.2 

.2

.3 

.3 

.3 

.2 

.2

.4 

.1 

.2 

.3

.6

.4 

.3 

.2 

.2 

.2

.2 

.2 

.5 

.3 

.3

.2 

.2

.1 

.1 

.1 

.1

Sept.

0.2 

.1 

.2 

.2 

.1

.1 

.1 

.1 

.1

.1

.2

.1 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.2 

1.0 

2.0

7.1 

2.1 

1.3 

.7 

.6

Runoff

Inches Acre-feet

0.12 37 

.07 23 

.05 15 

.11 36

111
SKAGIT RIVER BASIN 163

Skagit River near Hope, British Columbia 

(International gaging station)

Location. Water-stage recorder, lat. 49°03', long. 121°05', just downstream from Galena

Greek, 4 miles upstream from international boundary, and 40 miles southeast of Hope,

British Columbia. 

Drainage area. 370 square miles. 

Records available.--October 1934 to September 1950 in reports of Geological Survey. March

1915 to September 1922 in reports of Water Resources Division, Department of Resources

and Development, Canada.

Average discharge.--16 years (1934-50), 902 second-feet. 

Extremes.--Maximum discharge observed during year, 10,200 second-feet June 21 (gage

height, 12.20 feet); minimum, 270 second-feet Sept. 22, 23 (gage height, 5.22 feet). 

1915-22, 1934-50: Maximum discharge, that of June 21, 1950; minimum recorded, 81

second-feet Feb. 9, 1937. 

Remarks. No diversion or regulation. 

Cooperation.--This station is maintained with the cooperation of the city of Seattle and

is one of the international gaging stations maintained by Canada under agreement with

the United States.

4.3 

4.5 

4.7 

5.0 

5.5

Rating tables, water year 1949-50 (gage height, In feet, 

and discharge, in second-feet)

Oct. 1 to June 21 June 22 to Sept

280

340

420

550

830

6.0 

6.5

7.0 

7.5 

8.0

1,220

1,720

2,300

2,940

3,620

9.0

10.0

11.0

12.2

5,030

6,530

8,160

10,200

5.2

5.5 

6.0 

6.5

265

340

565

980

7.0 

7.5 

8.0 

8.5

1,560

2,230

2,990

3,790

9.0

10.0

11.0

11.3

4,630

6,330

8,050

8,590

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

316

310

301

307

325

319

310

301

334

384

408

472

432

404

468

510

484

460

440

432

412

396

388

380

380

376

388

680

851

740

680

Nov.

635

610

590

565

540

525

500

492

480

468

480

520

525

610

662

615

600

650

692

650

615

625

879

935

1,450

2,110

6,500

5,240

3,480

2,640

-

Dec.

2,450

3,170

2,590

2,130

1,790

1,500

1,330

1,230

1,090

1,040

970

900

865

812

794

758

740

716

635

615

640

640

640

630

615

610

610

605

668

680

645

Jan.

625

510

540

565

580

565

550

535

525

515

489

463

437

412

386

360

335

309

Z33

286

298

360

388

348

319

319

319

420

425

430

435

Month

October .... ..................

November ......................

December ......................

Calendar year 1949 .........

January ........ ..............

February . . .... ..............

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

April .........................

May .................... . ....

June ..........................

July .......................

August ............... ........

September .....................

Water year 1949-50 ..........

Feb.

440

433

427

420

414

408

408

412

416

420

416

416

416

408

416

436

432

440

420

420

416

412

412

416

432

488

525

500

_

-

Secondfoot-days

13, 388

33!l08

429,798

13,331

12,019

18,358

23 302

83^185

196,840

108,370

21,007

9,517

568,308

Mar

492

488

510

764

794

758

722

692

662

640

615

605

590

585

375

560

585

610

605

595

585

580

570

560

555

545

530

510

488

49 Z

496

Maximum

851

6,500

3,170

6,590

625

525

794

1, 26C

4,6301

10,200

7,250

'386

10,200

Apr.

496

488

476

472

484

510

520

525

535

540

560

645

824

858

865

900

956

935

963

1,110

1,260

1,220

1,110

994

921

865

818

800

794

858

May

921

978

986

1,030

1,060

1,020

1,010

1,010

1,220

1,380

1,960

3,070

4,080

4,420

4,390

4,080

3,900

3,410

2,840

2,510

2,510

3,170

2,940

2,710

2,840

3,380

4,490

4,630

4,040

3,620

3,580

Minimum

301

605

145

283

408

488

472

921

4,000

1,870

406

270

270

June

4,000

4,390

4,880

5,660

6,170

5,280

4,380

4,040

4,080

4,450

5,270

6,530

7,540

7,920

8,280

8,640

9,000

9,360

9,720

9,960

10,200

8,510

6,920

6,080

5,240

5,300

5,360

5,650

6,940

7,090

Mean

432

1,200

1,070

1,180

430

429

592

777

2,680

6,560

3,500

678

317

1,560

July

7,250

6,521

6,090

5,970

5,890

5,580

5,260

4,700

4,380

3,920

3,280

3,050

2,930

2,890

2,890

2,860

2,720

2,720

2,700

2,480

2,530

2,290

2,440

2,340

2,260

2,170

2,150

2,120

2,120

1,900

1,870

Per 

square 

mile

1.17

3.24

2.89

3.19

1.16

1.16

1.60

2.10

7.24

17.73

9 .46

1 .83

.86

4.22

Aug.

1,280

1,2

1,2

c

60

50

10

782

762

-

7

£

42

26

80

650

621

5

i

c

93

67

41

808

844

te

c

26

21

93

559

541

E

f

E

29

29

00

496

492

4

4

4

4

89

85

75

50

406

Sept.

386

386

386

378

352

352

346

346

335

305

300

300

298

298

295

295

272

280

280

275

272

270

270

275

305

352

328

332

328

320

-

Runoff

Inches

1.35

3 . 62

3.33

43.22

1.34

1.21

1.84

2.34

8.35

19.79

10.91

2.11

.96

57.15

Acre-feet

26,550

71,170

65,670

852,400

26,440

23,840

36,410

46,220

165,000

390,400

214,900

41,670

18,880

1,127,000

Note. No gage-height record Jan. 11-18, 29-31, Feb. 2-5, June 15-18, 20, 22, 24, 26, 28, 30, 

Aug. 2, 6, 13, 25-21; discharge estimated. June 19, 21, 23, 25, 27, 29, July 1 to Aug. 1, Aug. 3-5, 

7-12, 14-24, Aug. 28 to Sept. 21 computed from staff-gage readings.
164 SKAGIT RIVER BASIN

Ross Reservoir near Newhalem, Wash.

Location.--Water-stage recorder, lat. 48°44', long. 121°04', In SE^ sec. 3E, T. 38 N., R. 

13 a., at Ross Dam'on Skaglt River about 1 mile downstream from Ruby Creek and 9 miles 

northeast of Newhalem. Datum of gage Is at mean sea level (city of Seattle bench mark).

Records available. October 1946 to September 1950. 

194U to September 1946.

Monthly elevations and contents March

Extremes. Maximum contents during year> 1,214,000 acre-feet July 10 (elevation, 1,582.88 

Feet); minimum, 126,500 acre-feet Apr. 29 (elevation, 1,391.29 feet). 

1940-50: Maximum contents, that of July 10, 1950.

Remarks.--Reservoir is formed by concrete dam completed to, elevation 1,615 feet in 1949; 

storage began Mar. 11, 1940. Capacity, 1,202,920 acre-feet between elevitions 1,250 

feet (lowest outlet) and 1,582 feet (spillway crest). Dead storage negligible. Water 

used to supplement low flow of Skagit River through city of Seattle's Diablo and 

Newhalem power plants. Figures given herein represent total contents.

Cooperation. Uage-height record collected in cooperation with city of Seattle.

Capacity table (elevation, In feet, and contents, In acre-feet) 

(Prepared by Geological Survey on basis of 15 contour 

areas furnished by city of Seattle)

1,390 123,860

1,410 168,090

1,430 222,050

1,450 285,540

1,470 360,870

1,490 454,480

1,510 571,110

1,530 718,200

1,550 888,320

1,570 1,078,800

1,590 1,291,700

Elevation at 12 D.m.. In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

563.11

562.69

562.11

561.79

561.23

560.72

560.17

559.62

559.66

559.17

558.69

558.26

557.81

557.46

557.44

557.18

556.71

556.15

555.52

555.11

554.58

554.09

553.63

553.07

552.50

551.97

551.39

552.09

552.41

552.51

552.30

Nov.

551.84

551.28

550.97

550.42

550.07

550.03

549.60

548.99

548.42

547.73

547.45

547.40

547.31

547.34

547.31

547.23

547.15

547.30

547.68

547.97

548.00

548.37

549.35

550.64

552.87

556.90

562.52

565.03

567.96

569.06

-

Dec.

570.56

572.22

573.48

573.71

573.73

573.60

573.21

572.76

572.57

572.21

571.80

571.46

571.00

570.49

570.09

569.65

569.02

568.68

568.32

567.92

567.43

566.67

565 . 74

564.86

563.22

563.10

562.48

562.10

561.79

561.38

560.66

Jan.

560.15

559.42

558.75

558 . 10

557.48

556.88

556.12

555.53

554.79

554.12

553.67

552.96

552.15

551.31

550.50

549.70

548.89

548.03

547.27

546.61

546.01

545.71

545.40

544.64

543.88

543.17

542.41

541.64

540.83

539.99

539.22

Feb.

538.41

537.56

536.69

535.49

534 . 15

532.44

530.72

529.31

527.67

526.19

524.53

522.70

521.04

'519.19

517.36

515.86

514.09

512.19

510.30

508.32

506.60

504.57

502.56

500.48

498.46

496.67

494.71

492.92

-

_

-

Mar.

491.61

489.95

488.77

488.19

486.70

485 . 13-

483.46

481.45

479.31

477.33

476.31

474.60

472.46

469.83

467.24

466.34

465.74

465.19

464.70

462.49

459.72

457.54

454.64

451.72

448.73

445.72

442.67

439.65

436.50

433.36

430.82

Apr.

428.75

425.56

422.35

419.03

416.25

413.02

409.74

406.41

403.11

401.44

399.74

398.96

398.39

397.68

397.56

396.77

396.11

395.02

395.18

396.16

396.47

395.87

395.18

393.83

393.53

392.54

392.29

391.68

391.75

392.63

May

393.68

393.97

393.84

395.63

396.98

398.26

400.01

400.25

399.15

398.95

399.30

401.81

406.44

411.31

416.30

421.39

426.99

429 . 19

431.46

433.14

434.85

438.13

440.37

442.91

445.09

448.24

454.35

460.43

464.87

468.85

472.23

June

476.40

480.80

485.73

491.42

497.07

501.21

504.03

506.65

509.32

512.25

516.08

520.96

525.98

531.35

536.66

542.08

547.00

551.81

556.22

560,36

564.12

"566.58

567.86

568.53

568.89

569.32

569.99

571.15

573-09

574.84

-

July

576. Z£

577.47

578. 5C

579.63

580. 6S

581.8]

582.41

582. 6£

582.82

582. 8C

582.52

582.25

582.02

581.92

581. 6E

581.26

580.88

580.53

580.35

58O.11

579.73

579.39

579.01

578.69

578.48

578.10

577.79

578.04

578.15

578.25

578.46

Aug.

578.50

578.36

578.10

578.17

578.49

578.57

578.35

578.15

578.13

578.12

578.22

578.42

578.46

578.51

578.50

578.35

578.43

578.13

578.11

57.8.22

578.34

578.42

578.59

578.31

577.95

577.67

577.55

577.51

577.47

577.52

577.57

Sept.

577.58

577.82

578.19

577.79

577.08

577.74

576.45

576.13

576.03

575.82

575.47

575.12

574.70

574.49

574.09

574.09

574.10

573.92

573.47

573.18

572.90

572.51

572.10

572.06

572.00

571.77

571.41

571.08

570.63

57X5.37

"

Monthly elevation and contents, water year October 1949 to September 1950

Date

Sept. 30.....................

Oct. 31. ....................

Nov. 30.. ...................

Dec. 31...... ...............

Calendar year 1949 ........

Peb . 28 .....................

Apr. 30.....................

June 30 .... ... .

July 31 .....................

Aug. 31.....................

Sept. 30.......... ...........

Water year 1949-50 ........

Elevation 

(feet)t

,560.7

-

,570.4

Contents 

(acre-feet)

' 987,300

-

1,082,900

Change In contents 

during month 

(acre -feet)

-82,400

+435,600

-74,500

+69 , 5OO

t Elevation and contents at 12 p.m.
SKAGIT RIVER BASIN 165

Skagit River at Newhalem, Wash.

Location.--Water-stage recorder, lat. 48°40', long. 121°15', in SE£ sec. 21, T. 37 N., R. 

12 E., at power plant of city of Seattle at Newhalem, a quarter of a mile upstream from 

Newhalem Creek, 11 miles upstream from Bacon Creek, and 16 miles upstream from Marblemount. Datum of gage is 400 feet above mean sea level, subject to adjustment to datum 

of 1929.

Drainage area.--1,160 square miles, of which 390 square miles is in Canadf.

Kecords available.--December 1908 to May 1914 and October 1920 to September 1950 in reports 

or ueoiogical Survey. October 1908 to September 1933 (monthly discharge only), in 

State Water-supply Bulletin 5.

Average discharge.--42 years, 4,312 second-feet (adjusted for storage in Piablo Reservior 

since October 1929 and Ross Reservoir since March 1940).

Extremes.--Maximum discharge during year, 17,700 second-feet June 29 (gage height, 88.20 

reet ); minimum, 924 second-feet Nov. 5 (gage height, 80.45 feet); minimum daily, 1,420 

second-feet Sept. 17.

1908-14, 1920-50: Maximum discharge, 63,500 second-feet Nov. 29 1909 (gage height, 

22.0 feet, from floodmark, site and datum then in use); minimum, 54 second-feet Nov. 1, 

1943 (gage height, 78.15 feet); minimum dally, 136 second-feet Aug. 24, 1930.

Remarks.--Records excellent. Water is diverted 3 miles upstream and is returned to river 

at Seattle power plant Just above station. Plow partly regulated by Ross Reservoir 

(see preceding page), .and by Diablo Reservoir (see p. 169), having a combined capacity 

of 1,279,000 acre-feet.

Cooperation. Gage-height record collected in cooperation wjth city of Serttle.

Revlsions~Twateryears). y 512: 1909-14. W1012: 1929.

Rating table, vater year 1949-50 (gage height, in feet, 

and discharge, In second-feet)

81.0 1 

81.5 1 

82.0 2 

82.5 2 

83.0 3

Discharge, in second-feet,

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3,570 

3,410 

4,140 

4,480 

4,500

4,360 

4,230 

3,880 

2,960 

4,530

5,150 

4,910 

4,720 

3,470 

3,840

3,800 

4,260 

4,710 

4,470 

4,030

3,990 

3,670 

3,840 

4,210 

4,010

4,160 

4,570 

5,610 

3,020 

3,130 

4,090

Nov.

4,870 

4,990 

4,800 

4,600 

4,340

1,900 

4,330 

4,600 

4,820 

4,830

4,570 

4,070 

3,870 

5,680 

4,940

4,170 

3,810 

3,870 

2,660 

2,350

3,110 

3,690 

3,500 

3,320 

5,220

6,260 

fi,560 

5,760 

4,670 

4,330

Month

Octc 

Novc 

Dece

Ca]

Jam 

Febi 

Hare 

Apr! 

May

June 

Julj 

Augv 

Sept

Wat

endar year 1949

h... ...........

1..............

ember ..........

er year 1949-50

Dec.

5,190 

5,630 

3,900 

6,270 

6,690

6,920 

7,210 

6,870 

5,430 

5,530

5,660 

5,220 

5,150 

5,590 

5,160

5,320 

6,050 

4,140 

3,950 

3,870

4,620 

6,590 

7,030 

6,480 

5,580

7,180 

7,520 

6,670 

6,360 

5,920 

6,780

Jan.

5,610 

5,440 

5,730 

5,120 

4,760

4,980 

5,850 

4,460 

4,670 

5,040

3,830 

5,100 

4,790 

4,970 

5,070

5,080 

4,990 

5,070 

5,010 

5,090

6,350 

4,980 

4,160 

5,490 

5,210

5,190 

5,070 

5,510 

5,040 

4,790 

5,090

,360 83.5 4,380 

,82O 84.0 5,290 

,350 85.0 7,410 

,940 86.0 10,000 

,610 87.0 13,200

water year October 1949 to September 19EO

Feb.

4,970 

4,900 

5,030 

6,190 

7,220

8,150 

8,630 

6,940 

7,940 

6,940

8,290 

8,220 

7,980 

7,990 

8,550

7,250 

8,220 

8,440 

8,370 

8,440

7,150 

8,450 

8,260 

8,120 

8,330

8,940 

8,260 

7,950

Mar.

5,570 

6,950 

7,390 

8,450 

8,940

8,100 

7,990 

8,140 

8,150 

7,630

4,720 

5,680 

7,090 

7,260 

7,360

4,200 

4,050 

3,900 

4,000 

6,650

7,720 

6,400 

7,800 

7,080 

7,150

7,080 

7,050 

7,200 

6,900 

6,720 

6,520

Apr.

4,770 

7,130 

6,630 

6,270 

6,340

6,660 

6,420 

6,520 

5,540 

4,360

4,370 

4,240 

3,770 

4,350 

4,280

5,260 

5,260 

5,5OO 

4,470 

3,530

4,420 

5,580 

5,280 

5,510 

4,360

4,920 

3,250 

3,810 

2,660 

2,680

Observed

Discharge in 

second-feet

Maximum

5,610 

8,560 

7,520

10,000

6,350 

8,940 

8,940 

7,130 

8,300 

12,700 

12,300 

10,000 

5,510

12,700

Minimum

2,960 

1,900 

3,870

1,310

3,830 

4,900 

3,900 

2,660 

2,080 

2,970 

4,560 

2,700 

1,420

1,420

Mean

4,120 

4,416 

5,825

4,610

5,082 

7,647 

6,769 

4,938 

5,004 

6,643 

10,640 

4,910 

3,640

5,797

Runoff 

in 

acre-feet

253,300 

262,800 

358,200

3,337,000

312,500 

424,700 

416,200 

293,800 

307,700 

395,300 

654,300 

301,900 

216,600

4,197,000

May

2,970 

3,440 

3,600 

2,420 

2,440

2,270 

2,080 

3,660 

5,360 

5,620

7,020 

8,150 

8,300 

7,710 

7,890

6,140 

5,940 

5,670 

6,120 

5,490

6,030 

6,090 

5,520 

5,500 

5,620

6,250 

4,150 

3,080 

3,860 

2,920 

3,800

Change In 

contents in

Rosa and 

Diablo 

Reservoirs 

(acre-feet)

-104,800 

+160,800 

-82,880

+426,000

-193,500 

-324,200 

-245,400 

-93,420 

+241,500 

+757,700 

+37,590 

-8,780 

-74,900

+69,580

June

3,350 

3,230 

3,170 

3,160 

3,660

3,550 

3,660 

3,400 

3,150 

2,970

3,130 

3,880 

3,520 

4,370 

3,590

5,440 

7,900 

7,180 

7,840 

9,440

9,600 

10,500 

11,200 

10,700 

10,300

10,600 

11,400 

11,100 

11,600 

12,700

July

12,100 

12,100 

12,200 

12,300 

f 12, 200

f 10, 600 

11,900 

12,000 

11,800 

11,600

11,400 

11,100 

11,300 

11,100 

11,200

11,000 

11,300 

11,200 

11,700 

10,80T

11,200 

11,400 

11,600 

11,900 

10,70T

11,000 

9,380 

6,140 

5,760 

5,320 

4,560

Aug.

4,940 

6,650 

6,890 

4,570 

2,980

3,400 

5,370 

5,290 

4,650 

4,400

3,590 

4,100 

3,770 

4,310 

10,000

8,100 

4,790 

6,740 

3,960 

3,860

4,780 

4,140 

5,840 

5,500 

6,590

4'080 

3,920 

3,330 

3, §20 

2,700

Sept.

2,810 

3,840 

5,510 

3,200 

3,590

4,030 

4,150 

3,980 

2,820 

2,650

4,060 

3,750 

4,030 

4,000 

3,890

2,340 

1,420 

3,620 

3,680 

3,250

3,510 

3,990 

3,880 

2,880 

4,290

4,530 

4,290 

4,080 

3,850 

3,280

Adjusted f " » change in 

reservoir contents

Runoff 

in 

acre-feet

148,500 

423,600 

275,300

3,763,000

119,000 

100,500 

170,800 

200,400 

549,200 

1,153,000 

691,900 

283,100 

141,700

4,267,000

Discharge in 

second- feet

Per 

Me<m square 

mile

2,415 2.08 

7,119 6.14 

4,477 3.86

5,198 4.48

1,935 1.67 

1,810 1.56 

2,778 2.39 

3,368 2.90 

8,932 7.70 

19,,380 16.7 

11,250 9.70 

4,767 4.11 

2,381 2.05

5,894 5.08

Runoff

inches

2.40 

6.85 

4.45

60.82

1.92 

1.62 

2.76 

3.24 

8.38 

18.64 

11.18 

4.74 

2.29

68.97

f Computed on basis of partly estimated gage-height record.
166 SKAGIT RIVER BASIN

Skagit River at Marblemount, Wash.

Location.--Water-stage recorder, lat. 48°32'10", long. 121°25 I 50", in NW£ sec. 7, T. 35 

N., R. 11 E., half a mile north of Marblemount and 1 mile upstream from Cascade River.

Records available. September 1943 to July 1944, October 1946 to September 1950.

Extremes.--Maximum discharge during year, 59,300 second-feet Nov. 27 (gage height, 11.37 

feet, from high-water mark in gage house), from rating curve extended above 20,000 

second-feet; minimum, 2,080 second-feet Oct. 23; minimum daily, 2,750 seoond-feet 

Sept. 17.

1943-44, 1946-50: Maximum discharge, that of Nov. 27, 1949; minimum, 620 secondfeet Mar. 6, 1944 (gage height, 0.55 foot); minimum daily, 1,190 seoond-feet Feb. 25, 

1944.

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

ana those for periods of no gage-height record, which are poor. Plow partly regulated 

by power plants on upper Skagit River, and by Ross Reservoir (see p. 164) and by Diablo 

Reservoir (see p.169).

Rating tables, water year 1949-50, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Nov. 25 Nov. 2S to Sept. 30

2.3 3,360 4.0 8,500 2.5 3,610 5.0 12,200 

2.6 4,100 4.5 10,600 3.0 4,840 6.O- 17,100 

3.0 5,180 5.0 13,000 3.5 6,300 7.0 23,OOO 

3.5 6.650 4.0 8,020 8.0 29,800 

4.5 10,000

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4,190 

4,050 

4,520 

5,500 

5,480

5,380 

5,100 

4,650 

5,230 

5,860

7,740 

6,850 

6,160 

4,880 

5,880

5,170 

5,300 

5,600 

5,450 

4,870

4,780 

4,360 

4,510 

4,840 

4,880

4,890 

5,380 

11,400 

5,280 

4,700 

5,160

Nov.

5,670 

5,940 

5,710 

5,540 

5,190

3,360 

4,480 

5,320 

5,570 

5,510

5,840 

6,210 

6,600 

9,530 

7,400

6,160 

5,710 

5,880 

4,480 

3,850

44 310

6,040 

7,200 

7,130 

11,800

f!6,600 

29,000 

11,100 

8,540 

7,330

Dec.

10, 100 

12.300 

7,520 

8,650 

8,490

8,840 

8,640 

8,340 

6,530 

6,690

6,740 

6,500 

6,170 

6,440 

6,370

5,920 

6,810 

5,430 

4,660 

4,780

4,980 

7,190 

7,450 

7,250 

6,310

7,600 

8,780 

9,180 

9,190 

8,100 

8,320

Jan.

5,930 

6,600 

7,100 

6,500 

6,200

6,400 

7,300 

5,700 

5,900 

6,300

5,000 

6,300 

6,110 

5,900 

6,400

6,200 

6,140 

6,300 

5,830 

6,440

8,770 

7,810 

5,880 

6,920 

6,800

7,100 

6,600 

6,800 

6,060 

5,900 

6,300

Feb.

6,100 

6,400 

6,600 

6,540 

7,860

8,700 

9,210 

7,600 

8,560 

7,60O

8,820 

8,710 

8,770 

8,780 

10,000

9,410 

9,850 

9,870 

9,790 

9,800

8,330 

9,610 

9,580 

9,560 

10,300

12,500 

10,800 

9,880

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

7,500 

8,500 

10,900 

13,400 

12,300

10,900 

10,300 

10,000 

9,740 

9,150

6,340 

7,020 

8,210 

8,290 

8,230

5,700 

5,880 

5,840 

5,920 

8,130

9,080 

7,810 

8,970 

8,200 

8,240

8,120 

8,000 

8,160 

7,820 

7,640 

7,300

Apr.

6 

8

7

7

f7 

7 

7, 

6 

5

5 

5 

5 

5

6

7, 

7 

7 

6 

5

6 

7 

6 

6 

5

6 

4 

5 

4 

4

Secondfoot-days

168,040 

223,000 

230,270

2,316,080

200,490 

249,530 

261,590 

193,640 

232,090 

337,650 

456,720 

236,680 

153,600

2,943,300

280 

230 

700 

420 

360

850 

660 

440 

750 

640

590 

960 

470 

890 

190

300 

510 

260 

670 

650

300 

320 

880 

870 

870

220 

860 

000 

340 

160

May

4,610 

4,950 

5,030 

4,170 

4,110

3,850

3,720 

4,760 

6,880 

7,050

9,290

11,900 

11,900 

11,400 

11,500

9,120 

8,930 

8,170 

8,200 

7,430

8,330 

8,860 

7,880 

7,940 

8,000

9,550 

8,890 

6,730 

6,710 

5,730 

6,500

Maximum

11,400 

29,000 

12,300

29,000

8,770 

12,500 

13,400 

8,230 

11,900 

19,400 

18,000 

17,000 

7,370

29,000

June

6,750 

6,940 

7,180 

7,910 

7,960

6,800 

6,310 

6,280 

6,070 

6,590

7,850 

9,120 

8,670 

9,200 

8,720

11,000 

14,000 

13,700 

13,800 

15,700

15,300 

15,100 

15,800 

14,200 

13,200

13,900 

15,600 

16,400 

18,200 

19,400

July Aug.

17,800 

17,400 

17,400 

18,000 

17,700

16,000 

16,000 

16,100 

15,800 

15,600

14,800 

14,400 

15,100 

14,900 

14,600

14,200 

15,000 

15,200 

16,200 

14,800

15,200 

15,600 

15,900 

16,500 

15,200

14,800 

13,100 

9,580 

8,700 

8,210 

6,930

Minimum

4,050 

3,360 

4,660

2,470

5,000 

6,100 

5,700 

4,160 

3,720 

6,070 

6,930 

4,630 

2,750

2,750

7,480 

8,860 

9,380 

6,860 

5,110

5,110 

7,660 

8,170 

7,130 

7,100

6,270 

6,790 

6,240 

7,270 

17,000

12,700 

7,480 

9,790 

6,760 

6,650

7,340 

7,060 

8,780 

8,100 

9,140

8,130 

6,560 

6,200 

5,310 

5,620 

4,S30

Mean

5,421 

7,433 

7,428

6,345

6,467 

8,912 

8,438 

6,455 

7,487 

11,260 

14,730 

7,635 

5,120

8,064

Sept.

4,660 

5,420 

7,370 

5,510 

4,950

5,740 

5,740 

5,540 

4,380 

4,230

5,480 

5,330 

5,480 

5,480 

5,310

3,940

2,750 

4,680 

4,950 

4,560

4,200 

4,700 

4,400 

4,300 

6,000

6,500 

6,200 

5,800 

5,400 

4,600

Runoff In 

acre -feet

333,300 

442,300 

456,700

4,594,000

397,700 

494,900 

518,900 

384, 100 

460,300 

669,700 

905,900 

469,400 

304,700

5,838,000

f Computed on basis of partly estimated gage-height record.

Note. No gage-height record Jan. 2-12, 14-16, 18, 25-28, Jan. 30 to Pet. 3, Apr. 6, Sept. 21-30) 

discharge computed on tasls of recorded range In stage and records for station at Hevhalem. Shifting-control method used June 30 to Sept. 20.
SKAGIT RIVER BASIN 167

Skagit River near Concrete, Wash.

Location. Water-stage recorder, lat. 48°32 I , long. 121°46i. in sec. 16, T. 35 N., R. 8

 JS., at dalles, 2 miles dovmstreara from Baker River and 2^ miles southwest of Concrete.

Datum of gage is 130.0 feet above mean sea level, datum of 1929. 

Drainage area.--2,700 square miles, of which 390 square miles is in Canada. 

Hecords available.--September 1924 to September 1950. 

Average discharge. 26 years, 14,230 second-feet, 

.Extremes. Maximum discharge during year, 154,000 second-feet Nov. £7 (gage 1 eight, 40.8

 feet); minimum, 5,350 second-feet Sept. 18 (gage height, 14.42 feet); minimum daily, 

6,130 second-feet'Sept. 17.

1924-50: Maximum discharge, that of Nov. 27, 1949; minimum, probably less than 

2,160 second-feet during period Oct. 1-24, 1925, when recorder was not operating and 

gates in Baker River Dam were first closed; minimum daily recorded, 2,610 second-feet 

Nov. 14, 1936.

Maximum stage known, 69.3 feet, present datum, at site 200 feet upstream, from floodmarks (discharge, about 500,000 second-feet), occurred about.1815, Records of other 

floods, at site 200 feet upstream, prior to establishment of station, are given in 

Water-Supply Paper 612.

Remarks.--Records excellent except those for periods of shifting control, which are good. 

Flow partly regulated by power plants on Baker and upper Skagit Rivers, and by Ross 

Reservoir (see p. 164),and by Diablo, and Lake Shannon Reservoirs (see p. 169).

Rating table, water year 1949-50, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

14.8

15.1

15.5

16.0

16.5

6,130

6,760

7,650

8,810

10,000

17.0

17.5

18.0

19.0

20.0

11,300

12,700

14,200

17,500

21,200

21.0

23.0

25.0

27.0

29.0

25,300

34,300

44,100

55,700

68,500

31.0

33.0

35.0

37.0

81,500

95,200

109,000

123,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

3 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

23 

29 

30 

31

Oct.

8,810 

8,110 

8,340 

10,300 

13,000

11,900 

11,100 

10,000 

12,400 

15,500

17,800 

20,100 

15,100 

12,400 

13,600

13,000 

11,600 

12,200 

11,600 

10,500

10,300 

9,050 

8,340 

9,290 

9,050

8,570 

9,290 

29,300 

20,800 

14,200 

12,700

Nov.

12,400 

12,400 

11,900 

11,600 

11,100

9,050

8,570 

10,000 

10,500 

10,000

10, 800 

16,500 

22,000 

28,800 

22,800

17,500 

15,500 

15,100 

15,300 

11,300

10, 800 

12,800 

24,900 

24,500 

41,100

44,000 

123,000 

56,200 

38,100

30,600

-

Dec.

35,700 

52,100 

32,900 

28,400 

25,800

24,500 

22,000 

20,800 

18,200 

17,100

16,500 

16,100 

15,100 

14,800 

14,800

13,600 

14,800 

14,200 

11,600 

12,200

11,600 

11,900 

15,500 

17,500 

14,500

14,200 

20,500 

32,000 

27,900 

22,000 

18,900

Jan.

16,500 

14,200 

14,200 

13,600 

13,000

12,400 

12,200 

11,900 

11,300 

11,300

10,300 

11,100 

10,500 

9,780 

9,780

9,780 

9,780 

9,530

10,000 

14,800

26,200 

26,600 

18,900 

17,100 

15,500

14,200 

13,300

12,700 

13,000 

,11,900 

11,900

Feb.

11,600 

11,300 

11,300 

11,300 

13,600

14,200 

14,800 

13,600 

13,900 

13,000

13,600 

13,900 

14,500 

14,500 

17,500

20,500 

18,600 

17,500 

17,500 

17,500

15,500 

16,500 

17,500 

21,200 

23,200

30,100 

25,300 

21,200

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Maro 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1949 ......................

s.ry

nary

h. .....................................

1.. ....................................

ember. .................................

ter year 1949-50 ......................

Peak discharge (base, 50,000 sac. -ft.). A

64,600 sec. -ft. j Mar. 4 (6:30 a.m.) 53,800 e 

a.m.) 55,100 sec. -ft. 

Note. Shifting-control method used Dec. Z

Mar.

17,500 

17,500 

25,300 

45,200 

34,800

28,800 

24,500 

21,600 

20,100 

18,600

15,500 

13,600 

15,500 

15,100 

15,100

14,200 

15,100 

17,100 

17,900 

17,100

18,600 

17,100 

16,800 

15,800 

15,100

14, 800 

15,100 

14,500 

14, EDO 

14,200 

13,600

Apr.

14,500 

16 , 800 

16,100 

14,500 

14,200

14,200 

14,200 

13,300 

13,300 

11,900

11,100 

13,000 

13", 600 

13,600 

15,100

20,100 

2E,400 

18,200 

17,100 

16,100

16,800 

17,100 

16,100 

14,800 

13,900

13,000 

11,900 

11,300 

11,300 

10,800

Secondfoot-days

388,250 

687,120 

627,700

6,146,540

417,250 

464,700 

579,300 

440, 300 

662,400 

1,069,500 

1,052,500 

522,700 

290,300

7,162,620

May

11,600 

11,900 

12,200 

11,900 

11,300

10,800 

10,000 

10,800 

13,600 

13,900

17,900 

27,100 

39,700 

30,600 

30,100

26,200 

25,300 

23,200 

21,200 

19,700

18,900 

24,100 

21,600 

20,500 

21,200

24,100 

29,300 

27,500 

23,700 

22,000 

20,500

Maximum

29,300 

123,000 

52,100

123,000

26,600 

30,100 

45,200 

22,400 

30,600 

50,900 

48,500 

35,100 

16,800

123,000

June

22,400 

26,200 

27,100 

29,700 

33,400

26,600 

22,800 

21,600 

20,100 

22,000

30,100 

35,700 

36,200 

35,700 

34,300

39,100 

47,400 

47,400 

47,400 

50,900

50,300 

43,600 

44,100 

36,700 

31,500

31,500 

35,700 

41,100 

48,000 

50,900

Minimum

8, 11C 

8,57C 

11.60C

5.93C

9,53C 

11,30C 

13,60C 

10.80C 

10.00C 

20,10C 

17.50C 

10.30C 

6,13C

6,13C

July

48,500 

45,800 

42,600 

45,200 

44,600

42,600 

39,100 

36,200 

37,200 

36,200

30,100 

29,700 

32,400 

33,800 

31,500

29,700 

31,100 

32,400 

35,700 

33,800

32,000 

33,800 

34,800 

35,200 

33,800

31,100 

28,400 

24,500 

22,400

20,800 

17,500

Aug.

18, 

20, 

21, 

16, 

14,

13, 

16, 

16, 

14, 

14,

14, 

14, 

13, 

14, 

35,

31,

18, 

18, 

16, 

15,

16, 

15, 

19, 

18, 

I7 ,

16, 

14, 

13, 

11, 

11, 

10,

Meat

! 12,520 

) 22,900 

20,250

) 16,840

) 13,460 

) 16,600 

18,710 

) 14,680 

) 20,080 

) 35 , 650 

) 3J , 950 

) 16,860 

) 9,677

) 15,620

600 

800 

200 

80O 

200

000 

100 

100 

800 

500

200 

500 

900 

800 

100

400 

600 

900 

100 

800

100 

100 

300 

200 

500

100 

200

000 

600 

900 

300

Sept.

10, 300 

10,800 

12,400 

11,900 

9,290

10,800 

10,800 

10,300 

8,570 

6,760

8,810 

9,290 

9,050 

9,050 

9,050

7,650 

6,130 

6,980 

8,340 

7,880

7,420 

7,880 

7,880 

8,340 

13,400

16,800 

13,000 

11,600 

10,300 

9,530

Runoff in 

acre-feet

770,100 

1,363,000 

1,245,000

12,190,000

627,600 

921,700 

1,150,000 

873,300 

1,235,000 

2,121,000 

2,088,000 

1,037,000 

575,800

14,210,000

ov. 27 (11:30 a.m.) 154,000 sec. -ft. j Dec. 2 (5 a-m,) 

ec.-ft.j June 21 (5 a.m.) 53,300 sec. -ft. ; June 30 (4:30

9 to June 17.

238382 O - 53 - 12
168 SKAGIT RIVER BASIN

Skagit River near Mount Vernon, Wash.

Location. Water-stage recorder, lat. 48°25'40", long. 122°20'00", in SEj- sec. 7, T. 34

 N., H. 4 E., on drawrest of, and 150 feet downstream from bridge on U. S. Highway 99 

and 1 mile north of Mount Vernon. Datum of gage is at mean sea level, datum of 1929.

Drainage area. 3,060 square miles.

Records available. November 1940 to September 1950.

Extremes. Maximum discharge during year, 114,000 second-feet Nov. 28 (elevation, 34.21

 i'eet); minimum not determined, occurred about Sept. 18 during period of faulty intake 

action.

1940-50: Maximum discharge, that of Nov. 28, 1949; minimum, 2,740 second-feet Oct. 

26, 1942 (elevation, 7.37 feet).

Maximum stage known, 37 feet in 1906, from Great Northern Railway high-water profile.

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

Flow partly regulated by power plants on Baker and upper Skagit Rivers, and by Ross 

Reservoir (see p. 164), and by Diablo and Lake Shannon Reservoirs (see following page).

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

3

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9,380

8,760

8,560

8,960

13,700

12,800

11,800

10,900

10,900

16,800

16,800

22,400

17,600

14,200

13,200

15,000

12,300

12,300

11,800

11,100

10, TOO

9, GOO

8,960

8,560

8,960

8,560

8,760

18,800

28,800

17,400

13,700

Nov.

13,000

13,200

12,800

12,300

11,800

10,900

8,360

10,OOO

10,700

10,700

11,800

17,600

21,600

28,800

29,100

21,300

17,900

16,800

15,800

13,200

12,000

11,800

24,400

23,800

36,500

44,900

74,700

91,000

50,000

35,300

-

Dec.

31,600

54,600

44,100

31,200

26,500

25,300

21,800

20,400

18,500

16,800

15,800

15,200

14,200

14,000

13, 700

13,200

13,700

14,000

11,100

11,400

11,100

13,000

15,000

21,300

15,800

14,000

20,700

41,300

42,500

31,200

23,800

Jan.

21,600

17,600

16,000

15,200

14,500

14,200

13,700

14,200

12,800

13,OOO

12,500

12,000

12,200

-12.4OO

11,000

10,300

10,200

10,300

10,600

15,000

27,700

34,100

26,800

21,OOO

18,300

16,500

15,000

14,000

13,500

13,800

12,300

Feb.

12,100

12,100

12,300

12,800

13,700

15,200

16,300

16,000

15,000

15,200

14,200

15,200

16,800

17,600

21,600

27,100

23,200

21,000

21,000

20,400

19,300

18,800

20,700

25,600

28,400

37,300

36,500

27,400

_

_

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1949 ......................

January ....................................

February ............................. .....

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

April ......................................

Uatt way ........................................

June ......................... .............

July. ......................................

August ....................... .............

September. .................................

Water year 1949-50 ......................

Mar.

23,000.

20,400

24,100

50,500

46 , 500

40,500

31,600

27,100

25,000

23,000

20,200

16,500

17,400

17,400

17,400

17,400

19,600

22,100

23,000

21,800

21,800

21,900

21,500

18,000

17,600

17,600

17,600

17,400

16,800

16,300

16,000

Apr.

17,900

19,900

19,600

18,200

17,400

16,800

17,100

15,800

15,800

14,500

13,700

15,800

17,900

16,500

17,600

23,500

28,400

24,100

21,000

19,000

19,900

19,900

19,300

17,400

16,500

14, 700

14,500

13,200

13,200

12,500

-

Seoondfoot-days

402,060

712,060

676,800

6,561,300

482,300

552,800

707,000

531,600

682,700

1,137,600

1,107,000

528,900

306,140

7,826,960

Hay

13,000

13,500

14,200

14,000

13,200

12,800

12,000

11,800

14,000

15,500

18,200

25,900

32,200

34,900

33,300

30,500

27,700

26,200

23,800

22,400

20,200

24,100

24,700

22,400

22,400

24,400

29,800

32,600

26,500

24,400

22,100

Maximum

28, 800

54) 600

91,000

34,100

37,300

50,500

28,400

34,900

54, 600

53,200

38,100

15,200

91,000

June

23,200

26,200

28,400

30,800

35,700

31,600

25,900

23,200

22,400

21,800

28,400

36,500

39,300

38,100

37,700

39,300

48,200

51,400

50,500

52,800

54,600

49,600

50,000

43,300

36,100

33,300

35,700

41,700

48,700

53,200

-

Minimum

8,560

8,360

11,100

6,740

10,200

12,100

16,000

12,500

11,800

21,800

18,500

11,400

6,920

6,920

July

53,200

50,500

46,500

46,100

48,700

46,900

43,300

39,700

39,300

38,SOO

34,500

30,200

31,900

34,900

33,700

30,800

30,800

31,9CO

34,500

36.9CO

32.2CO

33,7CO

34,9CO

35.7CO

35, SCO

31,9CO

29,800

25,900

23,500

22,400

18,500

Aug.

18,200

19,600

21,300

17,900

15,000

13,500

14, 700

15,800

14,700

14,500

14,200

14,000

14,000

13,500

23,500

38,100

23,500

18,800

17,900

16,300

16,000

15,800

17,900

19,900

18,500

17,100

15,000

13,500

12., 800

12,000

11,400

Mr an

12,970

23,740

21,83O

17,980

15,560

19,740

22,810

17,720

22,020

37,920

35,710

17,060

10,200

21,440

Sept.

10,900

10,900

12,000

12,800

10,300

10,700

11,100

10,700

10, 000

8,180

8,000

9,600

9,380

9,600

9,160

8,960

7,280

6,920

8,360

8,360

8,000

8,000

8,360

8,180

10,000

19,900

15,200

13,OOO

11,600

10,700

-

Runoff in 

acre feet

797,500

1,412,000

1,342,000

13,010,000

956,600

1,096,000

1,402,000

1,054,000

1,354,000

2,256,000

2,196,000

1,049,000

607,200

15,520,000

Peak discharge (base. 55.000 sec.-ft.). Nov. 28 (2i30 a.m.) 114,000 sec.-ft. ; Dec. 2 (3 to 4 p.m.) 

61,400 see.-ftTj Mar. 4 (4 p.m.)' 57,TOO Bee.-ft.} June 21 (3:3O p..m.) 55,500 see.-ft.

Note. No gage-height record Jan. 3, 4, 13-19, Jan. 25 to Feb. 3, Mar. 22-24j discharge computed 

on basis of records for station near Concrete.
SKAGIT RIVER BASIN 

Reservoirs in Skagit River Basin, Wash.

169

Ross Reservoir.--See page 164.

Diablo Reservoir.--Water-stage recorder, lat. 48°43", long. 121°08', in Diablo Dam on

 Skagit River, in SE^ sec. 5, T. 37 N., R. 13 E. (unsurveyed), 1 mile dowistream from 

Thunder Creek and 6 miles northeast of Newhalem. Datum of gage is at mean sea level, 

subject to adjustment to datum of 1929. Records available, October 1929 to September 

1950 (October 1929 to September 1938 change in reservoir contents published with tables 

of monthly discharge for Skagit River at Newhalem). Maximum contents during year, 

83,200 acre-feet Nov. 28 (elevation, 1,198.2 feet); minimum, 65,240 acre-feet Sept. 3 

(elevation, 1,174.7 feet). Maximum contents during period 1929-50, 90,600 acre-feet 

July 14, 1933 (elevation, 1,206.5 feet).

Reservoir is formed by concrete dam, completed in 1930. Capacity, 76,220 acre-feet 

between elevations 1,040 feet (bottom of outlet pipes) and 1,205 feet (top of taintor 

gates). Dead storage, 13,000 acre-feet. Crest of spillway is at elevation 1,187 feet. 

Water is used by city of Seattle for power development at Diablo and Newhalem power 

plants. Gage-height record collected in cooperation with city of Seattle. Figures 

given herein represent total contents.

Lake Shannon.--Water-stage indicator, lat. 48°33', long. 121°44', in sec. 2, T. 35 N., R.

 8 E., on Baker River, half a mile north of Concrete and 1 mile upstream from mouth of 

Baker River. Datum of gage is at mean sea level, subject to adjustment to datum of 

1929. Records available, November 1925 to September 1950.

Reservoir is formed by concrete dam, completed in June 1927. Capacity, 132,500 

acre-feet between elevations 360 feet (lowest elevation for capacity operation) and 435 

feet (spillway crest). Dead storage unknown. Water is used by Puget Sound Power & 

Light Co. for power development. Gage-height records furnished by Puget Sound Power & 

Light Co. Figures given herein represent contents above elevation 340 feet (center 

line of outlet tunnel).

Monthly elevation and contents, water year October 1949 to September 195O

Date

Calendar year 1949...

June 30. ...............

Water year 1949-5O...

Diablo Reservoir

Elevation 

(feet)t

1,191.6

1,191.1 

1,191.2 

1,190.6

-

1,190.2 

1,190.4 

1,190.3 

1,192.5 

1,193.1 

1,192.8 

1,191.3 

1,192.2 

1,191.7

-

Contents 

(acrefeet)t

77,700 

77,300 

77,380 

76,900

-

76,590 

76,750 

76,670 

78,420 

78,910 

78,670 

77,460 

78,180 

77,780

-

Change in 

contents 

during month 

(acre-feet)

-400 

+80 

-480

-9,620

-310 

+ 160 

-80 

+1,750 

+490 

-240 

-1,210 

+ 72O 

-400

+ 80

Lake Shainon

Elevation 

(feet)t

433.13 

435.37 

435.83 

434.71

-

424.38 

433.38 

434.24 

434.24 

432.65 

435.78 

435.38 

435.04 

435.09

-

Contents 

(acrefeet)t

152,040 

157,080 

158,120 

155,590

133,030 

152,600 

154,530 

154,530 

150,970 

158,000 

157,100 

156,330 

156,440

-

Change In 

contents 

during month 

(acre-feet)

+5,040 

+1,040 

-2,530

+18,050

-22,560 

+19,570 

+ 1,930 

0 

-3,560 

+7,030 

-900 

-770 

+110

+4,400

t Elevation and contents at 12 p.m.
SKAGIT RIVER BASIN

Ruby Creek below Panther Creek, near Kewhalem, Wash.

Drainage area.--199 sqaare miles.

Records available. September 1948 to September 1950.

Extremes. Maximum discharge during jear, 8,640 second-feet Nov. 27 (gage height, 

 feet) , from rating curve extended above 5,600 second-feet; minimum, 169 secondFeb. 13, 14; minimum ;age height, 1.49 feet Oct. 8.

1948-50: Maximum discharge, that of Nov. 27, 1949, minimum, 46 second-feet

1949 (gage height, 0.70 foot).

Ratine tables, water year 1949-50, except period of ice effect 

(gage height, in feet, an3 discharge, in second-feet)

215

493

703

95U 

1,250 

1,900 

2 . '20

3.5 

4.0 

4.5 

5.0 

5.5

817

1,100

1,440

1,830

2,270

Discharge, in second-feet, water year October 1949 to September 195*.

Day

1 

2 

3 

4 

5

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

208 

195 

181 

218

216

198 

190 

178

263 

260

278 

287 

246 

229 

318

293 

260 

232 

218 

221

210 

2)8

203 

200 

203

205 

213 

1,000 

638 

533

Nov 

 

433 

425 

404 

379 

365

345

325 

315 

300 

284

32 £ 

368 

451 

659 

574

513 

533 

616

554

513 

574 

870 

1 , 100 

1,750

2,430 

5,540 

2,510 

1,590

1,340

Dec.

1,340 

1,550 

1,230 

1,040 

925

 344 

766 

717

670

625

582 

562 

541 

541 

521

521 

5O1 

4?3 

398

437

441 

433 

426 

408 

391

384 

398

501 

501 

452 

433

Jan

398

371 

b 340 

^310 

*b290

bL '0 

b260 

b250 

b240 

b230

"0220 

b210 

3210 

a200 

3200

a200 

a!90 

a!90 

a!90 

a 2 50

331 

319 

278 

215 

257

3Z2

a220 

~a218

a2lO 

a209 

a209

Feb

210 

139 

196 

199 

188

184 

179 

179 

177 

175

175 

173

171 

169 

177

181

177 

177 

179 

175

173 

173 

175 

179 

196

234 

217 

201

Month SecondMonth foot-days

Ootc 

Nove 

Dece

Ca

Janu 

Febr 

Mart 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber .

lender year 1949 .....

8,768 

26,998 

19,542

285,053

h

..... ..............

st .......... ............. 

ember . . .......... ......

7, SO/ 

5,188 

7,478 

9,418 

40,135 

105,960 

65,350 

18,435 

7 .326

ter year 1949-50 .......... 322,405

Mar.

196 

190 

348 

4P3 

388

338

307

267 

249

234 

227 

222 

215

210

224 

244 

246 

239

224

219 

215 

208

3205 

a200

al95 

a!90

aiaa

a!83 

alSO 

a!77

Maximum

l.OOC 

5.54C 

1,55C

5,54C

398 

234 

463 

541 

t,36C 

5,650

1,12C 

357

5.65C

Apr.

3200 

203 

*199 

201 

CIS

212 

217 

215

227 

29C 

351 

319 

331

347 

374 

351 

388 

501

541 

482 

419 

381 

357

331 

319 

313 

331 

377

May

416 

422 

416 

433

426

405 

402 

426 

541 

748

1,170 

l,71u 

1,960 

2,090 

2,040

1,910 

1,750 

1,480

I,'l60

1,300 

1,590 

1,480 

1,400 

1,550

1,910

2,090 

1,830 

1,710 

1,750

Minimum

178 

284 

384

63

190 

169 

177 

199 

402 

2,OOO

328 

18t

169

June

2,040 

2,180 

2,540 

3,080 

3,080

2,450 

2,040 

2,00u 

2.04C 

2,360

3,120 

4,060 

4,280 

4,500 

4,280

4,610 

5,650 

5,170 

5,050

5,650

5,330 

4,170 

3,260 

_,810 

2,540

2,630 

2,990 

3,490 

4,280 

4,280

Mean

283 

900 

630

781

252 

185 

241 

314 

1,295 

5,532

595 

244

883

Peak: discharge (base, 3,000 sec . -ft . ) .--Nov. 27 (4:30 a.m.) 8, £40 sec.-

July

3,830 

3,550 

3,460 

3,760 

3,560

3,260 

2,990 

2,630 

2,540 

2,27O

1,8"'0 

1,750 

2,000 

2,090 

1,870

1,710 

1,710 

1 , 830 

2 , 000 

1,710

1,670 

1,710 

1,750 

1,710 

1,630

1,480 

1,300 

1,160 

952 

/92

76e

Per 

square 

mile

1.42 

4.52 

3.17

3.92

1.27 

.930 

1.21 

1.58 

6.51 

17.7

2.99

1 .23

4.44

Aug

817 

898 

7c6 

648 

625

604 

604 

582 

f'Ji 

604

604 

604 

5£2 

541 

1,120

870

825 

562 

562 

582

582

582 

521 

4b3

437 

437 

405 

374 

360 

328

Sept

528 

344 

35' 

351

313

287 

267 

249

229

224 

224 

224 

227 

227

224 

215 

iOi5 

201 

194

194 

199 

194 

206 

281

289 

£34

21 = 

201 

186

Runoff

Inches Ac re- feet

1.64 17,390 

5.05 53,550 

5.65 38,760

53.26 565,400

1.46 15,480 

.97 10,290 

1.40 14,830 

1.76 18,680 

7.50 79,610 

19.80 210,200

3.45 36,570 

1.37 14,530

60.26 639,500

ft.; June 5 (1:30 a.m.)

3,360 sec. -ft.; June 20 (10:30 p.m. 6,270 sec. -ft.; June 29 (9 p.m.) 4,940 sec. -ft. 

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of records for Stetattle Creek near Newhalem 

and Thunder Creek near Newhalem. 

b Stage -discharge relation affected by ice.
SKAGIT RIVER BASIN 171

Drainage area.--98 square miles.

Records available.--October 1930 to September 1950.

Average discharge.--20 years, 606 second-feet.

Extremes. Maximum discharge during year, 8,900 second-feet Nov. 27 (gage hfi^ht, 12.14 

reet) , from rating curve extended above 2,900 second-feet; minimum, 32 3econd-fe°t 

Feb. 15 (gage height, 1.93 feet).

1930-50: Maximum discharge, thr.t of Nov. 27, 1949; minimum not determined, probably 

less than 50 second-feet during period of ice effect or no gage-height record in F°bruarv 1936.

Revisions (water years). W 1012: 1943.

Discharge, in second feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

398

335

292

585

395

320

285

245

531

425

495

442

33?

298

722

425

330

2 IB

252

238

222

212

208

206

225

232

298

2,030

788

548

478

Nov.

460

478

425

395

380

335

305

290

2sa

243

305

365

565

1 , 000

705

585

605

745

625 si;.;

442

699

1,080

1,330

£,080

c ,620

5,320

2,080

1,320

1,000

Dec

1,050

1 , 2 90

925

755

665

565

495

425

395

350

310

295

275

260

255

238

225

210

184

186

184

184

180

168

166

159

178

395

495

395

332

Jan

290

245

235

220

210

199

* n 88

180 1 74

170

151

155

148

b!45

3141

al39

3133

3131

a!30

a200

374

374

328

265

220

215

192

178

*176

a!70

a!60

Month

October .......................

November ......................

December ......... ............

Calendar year 1949 .........

January ... ...................

February ............ ..... ...

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

April .............. ..... .

May . . .............. . . ...

June ................ .........

July ............... .........

August ................... ....

September ............ ........

Water year 1941-50 .........

Feb.

a 151

al45

al39

a!34

3130

127

122

112

119

117

112

110

112

111

120

136

130

125

133

131

125

125

125

133

152

240

242

210

-

-

-

Secondfoot-days

13,070

2 7 ,56 7

l£ , ly y

249,597

6, £46

3,878

7,346

241927

56,590 

56,600

38,795

21,083

2,6,438

Mar.

190

176

y 75

725

530

442

365

313

238 26i"

232

210

195

186

174

176

208

218

215

19 7

188

180

174

170

163

157

155

152

145

142

140

Maximum

2.03C

5,320

1,290

5,320

374

242

725

4,60

1,380

2,920

2 , 400

i- , 89C

1 , 120

5,320

Apr

165

1S8

163

157

164

182

178

1 74

174

172

174

235

283

290

318

362

395

350

341

401

460

425

368

328

308

285

278

268

270

295

May

325

34 /

341

347

344

330

320

328

392

495

745

1,100

1,230

1,290

1,230

1,180

1,100

925

788

705

855

1,100

925

855

900

1,100

1,380

1,150

1,000

900

900

Minimum

206

248

159

71

130

110

140

157

320

1,000 

1,100

855

312

110

June

1,080

1,200

1,350

1,540

1,680

1,260

1,020

1,000

1,050

1,230

1,570

2,000

2,160

2,320

2,240

£,480

2,920

2 , 830

2,740

2,920

2,830

2,320

1,850

1,440

1,290

1,410

1,640

F,000

2,560

2,560

Mean

422

918

394

684

201

138

271

804

1 , 886

1,826

1,251

703

757

July

 > o'O

2 ' 1 60

2,lbO

2,320

2,400

2,320

2,080

1,850

1,920

1,740

1,470

1,410

1,680

1,740

1,680

1,540

1,640

1,740

2,000

1,710

1,780

2,000

2,080

2,160

2 ,080

1,920

1,680

1,540

1,250

1,100

1,120

Per 

square 

mile

4.31

9.3,

4.02

5.98

2.05

1.41

2 .42

2. 77

"1 Q '?

18.6

12 . 8

7.17

7 .72

Aug.

\ ,260

1 ,410

1 ,200

1,020

975

1,020

1,080

1,020

1,080

1,100

1,120

1,180

1,100

1,150

2,890

1,920

1,440

1,230

1,230

1,350

1,380

1,350

1,600

1,410

1,180

1,150

1,150

1,000

1,0'JO

925

855

Sept.

1,000

1,050

1,120

1,050

878

765

665

625

625

605

645

645

685

705

£85

£65

505

605

565

548

645

645

505

7 45

l.li.0

855

5-5

377

312

Runoff

Inches Acre-feet

4 . 96 25 920

10.46 54ib80

4.63 24,200

94.73 495,100

2.37 12,390

1.47 7,690

2.79 14,570

3.09 16,140

9.46 49,440

fl.48 112,200

21.48 112,300

14.72 76j950

8.0U 41,820

104.91 548,300

Fedk discharge ,4UC

sec.-ft.; June CO (2 i.m.J 3,100 

see.-ft.

* Winter dischsrge measurement

 a No gage-height record; dlsch 

below Panther Creek, near Newhalem.

b St3gp-dis;hdi?pe relation iffe^ted by Ice
17E 3KAGIT RIVER BASIN

Stetattle Creek near Newhalem, Wash.

Location.--Water-stage recorder, lat. 48°43'40", long. 121°09'30", in NE£ sec. 6, T. 3T 

N., K. 13 E., three-quarters of a mile upstream from mouth, 5j miles northeast of Newhalem, and 18=r miles northeast of Marblemount.

Drainage area.--31.4 square miles.

Hecorcis available.--September 1933 to September 1950. December 1913 to March 1914, Decemtier 1914 to jipril 1915, at site half a mile downstream, published as Stetattle Creek 

near Marblemount.

Average discharge.--17 years (1933-50), 168 second-feet.

Extremes.--Maximum discharge during year, 8,580 second-feet Nov. 26 (gage height, 9.70 

feet), from rating curve extended above 780 second-feet on basis of slope-area determination of peak flow; minimum, 31 second-feet Dec. CO, 21.

1913-15, 1933-50: Maximum discharge, that of Nov. 26, 1949; minimum, 9 second-feet 

Nov. 9-12, 193u.

Remarks. ReuorJ;: a ood except those for December to February, and those for periods of 

shifting Luiitrol, which are fair. No diversion or regulation.

Rating tables water year 1949-50, except periods of shifting control or Ice 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Nov. 26 Nov. 27 to Sept. 30

61

89

150

5.0 

5.5 

6.0 

6.5

1,060

1,430

1,880

2,420

1.5

1.6 

1.8 

2.0

2.2 

2.4 

2.7

3.0

112

146

212

296

3.3

3.6

398

518

706

1,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

68

56

48

158

121

96

78

65

253

173

325

225

143

113

332

155

111

84

71

66

64

61

62

65

74

69

204

845

250

158

127

Nov.

117

113

93

84

76

66

61

62

61

57

129

207

293

569

325

219

216

260

168

127

111

526

529

784

1,060

2,370

1,340

425

258

184

Dec

421

514

230

150

117

95

76

*66

61

53

47

46

42

40

40

39

38

37

33

31

32

33

34

35

33

33

66

235

278

184

132

Jan

104

b97

b86

b78

71

66

61

*58

54

5?

51

49

46

b46

b45

b45

b44

b44

44

77

345

258

168

12O

99

*81

77

75

74 373-

a71

Month

October , ....................

November . . , . . . ....... .

December .... . . ...... .......

Calendar year 1949 ..... , .

January ... ....... ...........

February ..... .........

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

April . . ....... ......

May ..... . ....... .... . . . .

June ... ........ . ... . . .

July ........ ...... ... . . . .

August .......... ... ......

September . ... .... ...

Water year 1949-50 . . ..... .

Feb

a70

a69

368

366

365

a64

a62

a61

a60

a60

a60

a60

a65

all

133

109

94

98

86

77

81

80

95

130

296

212

158

_

-

Secondfoot-days

4,720

1O, 890

T 97-1 > ' -1

76,460

2, 660

2,651

4,027

4,107

10, 100

15,587

11,969

6,506

2,824

79,312

Mar.

128

109

287

544

302

233

179

146

125

1O4

90

82

75

72

68

73

126

142

144

123

109

102

92

83

75

74

73

71

67

65

64

Maximum

845

2,370

514

2,370

345

296

544

252

656

756

594

656

238

2,370

Apr.

101

99

89

85

85

92

86

84

82

77

81

144

166

148

190

235

252

205

190

230

228

193

156

132

118

105

99

99

115

141

May

158

162

154

162

160

146

144

156

202

241

387

585

603

562

480

417

406

315

252

225

366

428

318

299

342

476

656

406

312

281

299

Minimum

48

57

31

24

44

60

64

77

144

263

210

112

62

31

June

387

425

484

567

489

322

263

275

293

387

567

656

632

656

632

756

706

706

706

756

656

514

384

296

284

384

448

594

706

656

Mean

152

363

106

209

85.8

94.7

130

137

326

520

386

210

94.1

217

July

591

527

531

571

571

540

45?

391

403

322

293

303

381

363

32?

323

342

391

423

345

363

387

40?

403

380

342

299

290

246

210

210

Per 

square 

mile

7.10

17.0

4.95

9.77

4.01

4.43

6.07

6.40

15 .2

24 '.3

18.0

9.81

4.40

10.1

Aug.

243

272

220

193

195

181

181

170

181

186

198

205

181

338

656

258

198

184

193

200

195

207

260

217

164

160

156

142

137

123

112

Sept

118

130

133

122

105

93

82

74

72

71

73

74

75

76

75

74

69

68

65

63

65

67

63

99

238

200

128

109

81

62

-

Runoff

Inches

8.20

18.93

5.68

132.86

4.62

4.61

7.00

7.14

17.55

27.09

20.80

11.31

4.91

137 .84

Ac re- feet

9,360

21,600

6,490

151,600

5,280

5,260

7,990

8,150

20,030

30,920

23,740

12,900

5,600

157,300

Peak discharge (base. 1,100 see.-ft.) . Oct. 28 (4 a.m.) 1,64O sec.-ft.; Nov. 22 (6 p.m.) 1,470 

sec.-ft.; Nov. 26 (9:30 p.m.) 8,580 sec.-ft.; Aug. 15 (3 a.m.) 1,140 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and reco-ds for Thunder 

Creek near Newhalem and Ruby Creek below PantHer Creek, near Newhalem.

b Stage-discharge relation affected by Ice.

Note.--ShiftIng-control method used Nov. 27 to Dec. 28, May 11-28.
SKAGIT RIVER BASIN 

. on Creek near Marblemount , Wash.

Location.--Wire-weight gage, lat. 48°35', l^nsr. 121°24', on line b°t,-;-en sees. 20 ana Ll

) N., R. 11 E. , at highway bridge a quarter of a mile upstream Irotr, month ana 4j

miles north of Marbl^mount.

Records available.--July 1943 to 3-ptember 1950 (diccontinuea).

Extremes. Maximum discharge during year, 18,100 second-feet Nov. 2fi (gage height, 7.12 

feet , from high-water marks on pier), by slope-area method; minimum observed, 126 

second-feet Jan. 18, but may have been less durinr period of ice effect Jan. 14.

1943-50: Maximum discharge, that nf Nov. 26, 1949; minimum observed, 74 seccndfeet Oct. 18, 1945.

Remarks.--Records c xcept those for periods of rapidly changing stage, shirting

control, and those below 300 second-feet, which ore fair. Qaee read twice daily. N

diversion or regulation.

Day

Discharge, in second-feet, water year 

Nov

October 1943 to September 1950

Apr May July Aug Sept

158 

15C

SCO 

445

aio

53C 

?95 

305 

592

485

435

149 

*144 

a!4U 

t!40

123

155 

144 

151 

149 

»144

144

144

188

188

310

412

412

4^0

510

562

485

460

510

535

485

435

485 

4HS

510

485

485

435

590

ElL

October . 

Novembe r 

December

Calendar year 1949

January . 

February . 

March . 

April . . . 

May . 

June . . 

July . . 

August . . 

September

ater year 1919-5C

Secondfoot-days

10,988

23,880

12,978

41- 

755

1,225

917

529

4.55

5.45

8 .50

8.38

15.45

11.13

10.7 145.^1

measurement
174 SKAGIT RI7ER BASIN

Cascade River at Marblemc Wa

recorder, lat. 48°.31'45", l;>n-. 121 "S3 '.30", iu sw£ sec. 9, T. 35 

es east of Marllermunt and 2.^ miles upstream from mouth.

Drains ~e area.--180 square miles.

Records avdilaclr .--September 1928 to September 1950.

Average dj scharge . --2S years, i:| Sl second-feet.

Extremes. Maximum discharge daring year, 17,800 second-feet Nov. 27 (gage neis;ht, 11.47 

feet] , from rai ing curve ^xtended above 5,000 second-feet by logarithmic plotting; minimum not- determined, probably occurred during period uf no '^age-height record.

1928-50: Maximum discharge, that of Nov. 27, 1349; minimum, 149"second-feet Nov.

15, 1929, but may have been less during January or February 

relation was aff-ated by ice; minimum ga^e height, 1.11 feet

y 1929, when stase-discharge

Peinar£s. Records excellent except e for periods uf nc jage-neight record, and those

vc 5,000 second-feet, wnich are fair. No diversion

Rating table ater year 1949-50 (gage height, in feet, 

discharge, in second-feet)

27 to Sept. 30

581

760

1,020

1,350

1,760

6.0 3,410

6.5 4,250

7.0 5,210

730

3.5 1,020

4.0 1,360

4.5 1,780

5.0 2,290

5.5 2,910

b.O 3,610

7.0 5,300

8.0 7,400

9.1 10,200

Discharge, in second-feet, water year October 1949 to September 19-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

56C

488

442

795

760

670

603

527

1,040

990

1,45C

1,430

990

335

1,180

Nov. Dec.

855 1 ',200

335

76C

P92

67C

603

seo

535

5E3

488

648

1,110

1,800

£,35C

1,530

910, 1,240

3,040

2,070

Jan

705

544

1,690 532

1,480 512

i

1,260

1,120

990

930

812

758

705

655

630

496

472

440

416

40 6

382

564

326

a320

626 a310

590 a30G

760 1,140 567 a 290

670! 1,180 532 f279

603 1.G50 492! a290

660

531

507

91O 472 705

810

1,140

459! 1J950

49 5i t,200

523

531

581

1,760

1,59C

1,080

910

3,260

4,800

10,200

3,910

2,720

2,070

-

468

484

492

468

1,400

1 . 430

1,080

a870

468 a750

472 a650

536 a560

1,120 a520

1,260 a480

1,020

840

a440

a420

Month

October .... , ...... .

November ... ... . .....

December ....... .....

Calendar year 1949 .........

January .... . . ... ..... ....

February . . . .........

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

April .... ... ......

May ... .... ....... . . . .

June .... .... ...... . .

July . . . .... .... .... ....

August . - . . ...... .....

September . . ... .......

Water year 1949-50 . ........

Feb. Mar

a40C ! 670

a390

a380

a3?t

a37C

364

343

350

336

322

315

309

371

396

562

612

680

785

1.170

Apr.

594

May

785

603 812

S£7i 735

2 , 470 540

1,870 540

81£

312

i

1,520

1,250

1,C80

960

840

730

621

576

540

594

840

62C 960

655

S21

580

580

590

67C

1,020

1,560

1,291-

1,020

_

_

-

Secondfoot-days

27,280

52,579

£9,347

44° 567

17,351

16,482

26,422

23,249

47,776

102,680

84,770

43,600

20,169

491,705

950

812

758

705

655

612

576

544

540

51C

476

472

5671 758

544 730

524 730

516 312

500 930

5C4

730

870

840

930

1,080

1.220

1,050

1.020

1,150

1,E20

1,080

960

640

785

730

680

655

680

-730

46C

Maximum

3,760

10,200

3,040

10,200

1,480

1,560

E.47C

1,220

2,720

5,110

4,230

I, 40C

1,120

10,200

1,440

2.18C

2,410

2,530

2,290

2, 120

1,970

1,690

1,480

1,290

1,400

1,690

June

2,120 2,470

July

4,230

3,760

2,780 3,610

3,320! 3,910

3,110

2,290

1,870

1,970

2,070

3,910

3,610

3,180

2,840

2.B40

2,470 2,590

3,320) 2,240

3,910

3,760.

3,910

3,610

4,400

4,930

4,750

4,930

5,110

4,570

3,910

1,520J 3,460

1,480| 2,590

1,690

2,180

2.720

2,290

1,920

1,740

1,780

Minimum

442

488

468

223

279

309

460

500

730

1,870

1,560

870

476

279

2,240

2, £50

3,110

3,910

4,570

4,570

-.

Mean

880

1,753

947

1,213

560

589

852

775

1,541

3,423

2,735

1,406

672

1,347

2,180

2,650

2,650

2,410

2,180

2,410

2,530

3,04C

2,650

2,650

2,640

2,910

2,840

2,650

2,550

z', 070

1,920

1,920

1,640

1,560

Per 

square 

mile

4.89

9.74

5.26

6.74

3.11

3.27

4.73

4.31

8.56

19.0

15.2

7.81

3.73

7.48

Aug

1.

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1.

1,

3,

2l',t

I,

1,

1,

1,

1,

1,

1,

3,

3_l'

1,

Sept.

690

780

520

320

220

220

290

220

220

900

960

960

900

812

758

680

630

616

220 612

260 I 612

290 j 608

260

260

400

120

560

360

36U

440

360

320

780

600

290

220

180

OEO

990

930

870

60S

603

590

576

540

520

504

476

504

528

512

585

1,120

1,020

730

630

549

476

 "

Runoff

Inches

5.64

10.86

6.06

91 45

3.58

3.41

5.46

4.80

9.87

21.21

17.51

9.01

4.17

101.58

Acre-feet

54,110

104,300

58,210

877,900

34,420

32,690

52,410

46,110

94,760

203,700

168,100

86,480

40,000

975,300

Peak dlsenarge (pase, 5,600 sec.-ft.).--Pet. 28 (11 a.m.) 6,510 sec.-ft.; Nov. 27 (3 a.m.) 17,800

(1:30 a.n.) 5,300 sec.-ft.; June 29 (12 p.m.)

ecords for nearby stream"!.
SKAGIT RIVER BASIN. 175

Sauk River above Whitechuck River, near Barring-ton, Wash.

Drainage area,--152 sqaare miles.

Extremes.--Maximum discharge durine year, 30,200 second-feet Nov. 27 (gage height, 14.90 

I'eet) , from ratine; curve extended above 6,200 second-feet by logarithmic plotting; 

minimum, 286 second-feet Sept. 21, 22.

1917-22, 1328-50: Maximum discharge, that of Nov. 27, 1949; minimum, 115 secondfeet Nov. 15, 16, 30, Dec. 1, 1936.

Revisions (water years).--rf 752: 1931

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

^

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

429 

429 

429 

948 

1,030

965 

776 

736 

1,690 

1,350

1,960 

1,840 

1.270 

1,020 

1,270

1,020

864 

760 

672 

605

570 

542 

535 

507

507

514 

626 

4,610 

2,150 

1,330 

1,060

Nov.

914 

848 

768 

696 

640

5S4 

549 

526 

549 

514

792 

1,720 

3,060 

2,850 

1,840

1,3CO

1,180 

1,080 

390 

006

816 

1,100 

2,020 

3,440 

4,510

*6,920 

17,500 

5,860 

3,550 

2,700

Dec.

3.340 

4,670

2,780 

2,150 

1,900

1,600 

1,360 

1,230 

1,140 

1,050

965 

914

856 

808 

816

784 

752 

704 

648 

633

619 

696 

948 

922 

816

768 

1,760 

3,630 

2,850 

1,900 

1,430

Jan.

1,140 

974

88a

840 

776

736 

683 

640 

P19 

605

570 

570 

a575 

3575

aseo

a590 

a600 

a620 

a750 

1,960

3,550 

3,080 

1,900 

1,440 

1,210

1,080 

974 

880 

a790 

a720 

a660

Month

Octc 

Move 

Decs

Ca

Jant 

Febr 

Marc 

Apr! 

May 

June 

Julji 

Augu 

Sept

Wa

lendar year 194 C 

ary

h .........................

ember .....................

ter year 1949-50 ..........

Feb.

a610 

a570 

a530 

aSOO 

a550

b600 

b590

b560 

577 

563

542 

556 

704 

728 

1,090

1,300 

940 

1,030 

1,020 

940

888 

990 

1,240 

2,080 

2,280

2,630 

1,840 

1,420

Secondfoot-days

33,014 

70,804 

45,439

501,451

31,580

27,888 

39,175 

29,883 

52,898 

105,140 

82,310 

35,753 

14,059

568,443

Mar.

1,200 

1,160 

4,210 

3,970

2,780

2,080 

1,600 

1,350 

1,180 

1,040

a950 

a350 

a780 

a720

*638

BOS

1,320 

1,430 

1,410

1,150

1,020 

965 

872 

792 

744

704

720 

696 

626 

664 

696

Maximum

4,610 

17,500 

4,670

17,500

3,550 

2,630

4,210 

1,840 

2,920 

5,070 

4,600 

2,730 

982

17,500

Apr.

1.240 

1,130 

940 

308 

784

784 

712 

688 

656 

626

633 

999 

,160 

,030 

,370

,720 

,840 

,340 

,180 

,240

,290 

,180 

,050

931 

864

792 

768 

688 

688 

752

May

800 

848

856 

840 

864

800 

776 

808 

872 

974

1,430 

2,280 

2,700 

2,850 

2,630

2,420

2,280 

1.960 

1,660 

1,500

1,550 

1,640 

1,720 

1,660 

1,840

2,280 

2,920 

2,560 

2,280 

2,020 

2,080

Minimum

429 

514 

619

215

570 

500 

626 

626 

776 

1,960 

1,340 

633 

297

297

June

2,490 

2,780 

3,080 

3,470 

3,470

2,780 

2,220 

2,020 

1,960 

2,420

3,310 

3,880 

3,880 

3,630 

3,390

4,060 

4,880 

4,420 

4,690 

5,070

4,880 

3,880 

3,800 

3,000

2,560

2,700 

3,150 

3,800 

4,690 

4,780

Mean

1,065 

2,360

1,466

1,374

1,019

996 

1,264 

996 

1,706 

3,505 

2,671 

1,153 

469

1,557

July

4,600 

4,150 

3,970 

4,240 

4,150

3,880 

3,390

2,920 

2,850 

2,490

2,080 

2,15C 

2,490

2,560 

2,280

2,060 

2.220 

2,420 

2,700

2,350

2 . 350 

2,560 

2,560 

2,560 

2,420

2,220 

1 , 900 

1,840 

1,660 

1,430 

1 , 340

Per 

square 

mile

7.01 

15.5 

9.64

9.04

6.70

6.55 

8.32 

6.55 

11.2 

23.1 

17.6 

7.59 

3.09

10.2

Aug.

1, 

1, 

1, 

1, 

1,

I, 

1, 

1,

1, 

1,

1,

1, 

1, 

1, 

1,

1, 

1, 

1, 

I, 

1,

500 

500 

300

120 

070

050 

130 

020 

999 

990

020 

030 

993 

931 

730

960 

350 

160 

090 

100

050 

010 

430 

3SO 

100

931 

906 

816 

736 

712 

633

Sept

619 

633

G40 

619

626

507 

494

435 

435 

423

423 

417 

399 

387 

375

364 

346 

324 

318 

307

297 

302 

302

324 

£80

982 

696 

556 

454 

375

Runoff

Inches

8.08 

17.32 

11.12

122.70

7.73 

6.82 

9.58 

7.31 

12.94 

25.72 

20,26 

8.75 

3.44

139.07

Acre-feet

65,480 

140,400 

90,130

994,600

62,640 

55,320 

77,700 

59,270 

104,900 

208,500 

164,300 

70,920 

27,890

1,127,000

Peak discharge (base. 4,000 sec.-ft . ) . --Oct. 28 (11 a.m.) 7,360 sec. -ft.; Nov.' 27 (3:30 a.m.)

30,200 sec.-ft.; Dec. 2 (2 a.m.)

5,460 sec._-ft.; June 30 (2 a.m.) 

* Winter discharge measurement mad 

a No gage-height record; discharge 

b Stag^-dlscharge relation affected by ic 

Note_. --Shifting-control method used Nov. 28 to J

Sept. 30.

6 ,490 sec . -ft .; Mar. 3 (7'p.m.) 6,700 sec. -ft .; 

5,260 sec.-ft.; Aug. 15 (3 p.m.) 4,060 sec.-ft.

this day. 

omputed on basis of records for station nesr Sauk.

12, Jan. 20-28, Feb. 9 to Max-. 10, Mar. 15
176 SKAGIT RIVER BASIN

Sauk R3ver near Sauk, Wash.

Location, Water-stage recorder, lat. 48°£5 I 15", long. 121°33'45", in NWjj sec. 19, T. 34 

W., R. 10 E., 5 miles upstream from mouth, 5 miles southeast of Sauk, and 8 miles downstream Suiattle River. Datum of gage is 226 feet above mean aea level (river-profile 

survey).

Drainage area.--714 square miles.

Records available.--July 1923 to September 1950. August 1910 to August 1912, various 

gages at sites from 1 mile downstream to 5 miles upstream from present site, published 

as Sauk River near Suiattle Crossing, near Sauk. All early discharge measurements made 

5 miles upstream from present site.

Average discharge. 22 years (1928-50), 4,130 second-feet.

Extremes.--Maximum discharge during year, 82,400 second-feet Nov. 27 (gage height, 16.93 

feetj; minimum, 1,460 second-feet Oct. 3 (gage height, 3.25 feet).

1910-12, 1928-50: Maximum discharge, that of Nov. 27, 1949; minimum-. 572 secondfeet Dec. 5, 1929, but may have been less during period of ice effect Jan. 10-27, 1930.

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

which are fair. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1F50

Day

1 

2 

3 

4

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,910 

1,660 

1,520 

2,4pO 

3,680

3,460 

2,950 

2,480 

4,400 

5,260

6,160 

6,950 

4,740 

3,790 

4,370

3,790 

3,150 

2,760 

2,480 

2,300

2,220 

2,110 

2,100 

2,020 

2,050

2,070 

2,300 

13,800 

7,400 

4,870 

4,020

Nov.

3.4GO 

3,250 

3,050 

2,760 

2,660

2,480 

2,300 

2,300 

2,300 

2,130

3,020 

6,510 

10,400 

10,700 

7,250

5,390 

4,620 

4,250 

4,020 

3,570

3,250 

3,360 

7,400 

9,120 

14,500

15,900 

55,800 

21,100 

13,000 

*10,000

Dec.

11,000 

17,300 

10,700 

8,340 

7,250

6,510 

5,660 

5,130 

4,740 

4,250

3,900 

3 , 680 

3,460 

3,250 

3,250

3,150 

3,05O 

2,850 

2,660 

2,480

2,480 

2,660 

3,460 

3,790 

3,250

3,150 

5,800 

13,800 

10,700 

7,400 

5,800

Jan.

4,870 

4,130 

3,680 

3,680 

3,250

3,150 

2,950 

2,76O 

2,570 

2,480

2,390 

2,300 

b2,200 

a2,100 

a2,000

al,900 

al.800 

al,700 

*bl,620 

6,180

12,200 

11,800 

7,710 

5,940 

b5,200

b4,500 

3,900 

3,360 

b3 , 100 

b2,900 

b2,700

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

1 ...............

ember ... ..... ..........

ter year 1949-50 .... .....

Feb

b2,500 

b2,300 

b2,100 

1,940 

b2,200

2,480 

2,390 

2,480 

*2,390 

2,220

2,220 

2,130 

2,660 

3,050

4,500

6,220 

4,870 

4,130 

4,250 

3,900

3,570 

3,900 

4,370 

8,340 

8,660

11,500 

8,660 

6,360

Secondfoot-days

115,250 

240,850

174,900

1,860,160

121,020 

116,290 

167,250 

127,610 

191,850 

372,880 

319,490 

149,150 

65,250

2,161,790

Mar

5,260 

4,740 

6,860 

17,700 

11,500

9,670 

7,560 

6,350 

5,520 

4,870

4,370 

3,900 

3,570 

3,360 

3,150

3,460 

6,08O 

6,510 

6,510

s.sro

4,740 

4,370 

4,020 

3,680 

3,460

3,250 

3,360 

3,150 

2,950 

2,950 

2,850

Maximum

13,800 

55,800 

17,300

55 , 800

12,200 

11,500 

17,700 

7,860 

10,000 

18, 700 

15,900 

9,560 

3,680

55,800

Apr.

5,390 

5,000 

4,250 

3,790 

3,460

3,460 

3,150 

2,950 

2,950 

2,760

2,760 

3,790 

4,620 

4,130 

5,260

6 , 950 

7,860 

5,800 

5,000 

5,260

5,520 

5,130 

4,500 

4,020 

3,790

3,460 

3,250 

3,050 

3,050 

3,250

May

3,460 

3,570 

3,460 

3,360 

3,460

3,250 

3,050 

3,050 

3,250 

3,570

5,000 

7,710 

8,990 

9,670 

9,330

8,660 

8,660 

7,400 

6,510 

5,660

5,800 

6 , 800 

6,360 

5,940 

6,510

8,020 

10,000 

8,990 

7,860 

7,250 

7,250

Minimum

1,520 

2,130 

2,480

1,030

1,620 

1,940 

2,850 

2,760 

3,050 

7,400 

5,800 

2,850 

1,600

1,520

June

8,340 

9,330 

10,000 

11,800 

11,800

9,330 

7,860 

7,560 

7,400 

8,340

11,100 

13,400 

13 , 800 

13 , 400 

12,600

14,600 

17,700 

16,800 

17,300 

18,700

17,700 

14,600 

14,200 

10,700 

8,990

9,330 

10,000 

13,000 

16,400 

16,800

Mean

3,718 

8,028 

5,642

5,096

3,904 

4,153 

5,395 

4,254 

6,189 

12,430 

10,310 

4,811 

2,175

5,923

July

15.90C 

14.60C 

13,80C 

14,60C 

15,000

14,200 

12,60C 

11.10C 

10, 70C 

10,000

8,66C 

8,340 

9,670 

10,000 

9,330

8,340 

8,660 

8,330 

11,100 

10,OOO

9,670 

10,000 

10,400 

10,400 

10,000

8,990 

8,020 

7,250 

6,950 

6,080 

5,800

Per 

square 

mile

5.21 

11.2 

7.90

7.14

5.47 

5.82 

7.56 

5.96 

8.57 

17.4 

14.4 

6.74 

3.05

8.30

Aug

6,080 

6,360 

5,660 

4,740 

4,5OO

4,250 

4,740 

4,370 

4,250 

4,250

4,370 

4,500 

4,250 

4,020

9,560

8,340 

5,940 

4,870 

4,620 

4,6?0

4,500 

4,370 

5,800 

5,390 

4,500

3,900 

3,790 

3,460 

3,150 

3,150 

2,850

Sept.

2,760 

2,850 

2,950 

2,950

2,660

2,390 

2,220 

2,080 

2,070 

2,050

2,050 

2,020 

1,970 

1,940 

1,900

1,860 

1,790 

1,700 

1,670 

1,630

1,600 

1,670 

1,640 

1,640

2,760

3,680 

2,760 

2,300 

1,960 

1,730

Runoff

Inches

6.00 

12.55 

9.11

96.89

6.30 

6.06 

8.71 

6.65 

9.99 

19.42 

16.64 

7.77 

3.40

112.60

Peak discharge (base, 12.0OO sec. -ft.). Oct. 28 (l p.m.) 22,800 sec. -ft.; Nov. 27 (9 a

Acre-feet

228,600 

477,700 

346,900

3,690,000

240,000 

230,700 

331,700 

253,100 

380,500 

739,600 

633,700 

295,800 

129,400

4,288,000

.m. ) 82,400

3.-ft.; Dec. 2 (8:30 a.m.) 20,700 sec.-ft.; Dec. 28 (l to 2 p.m.) 15,500 sec.-ft.; Jan. 21 (5p.m.) 

13,400 sec.-ft.; Feb. 26 (12 m.) 12.200 sec.-ft.; Mar. 4 (5 a.m.) 23,300 sec.-ft.; June 5 (4:30 a.m.) 

13,000 sec.-ft.; June 20 (5:30 a.m.) 19,700 sec.-ft.; June 30 (3 a.m.) 18,700 sec.-ft.; Aug. 15 

(5 p.m.) 13,800 sec.-ft.

* Winter discharge measurement made on this day.

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

b Stage-discharge relation affected by Ice.
3KAGIT RIVER BASIN 177

Baker River at Concrete, Wash.

Location. Water-stage recorder, lat. 48°33', long. 121°45<, in Mi sec. 11, T. 35 II., R. 

a E., 800 feet downstream from Baker River power plant, a quarter of a mile northeast 

of Concrete, and three-quarters of a mile upstream from mouth.

Drainage area.--270 square miles.

Records available.--September 1910 to March 1915, September 1943 to September 1950.

Average discharge.--11 years (1910-14, 1943-50), 2,509 second-feet.

Extremes.--Maximum discharge during year, 35,200 second-feet Nov. 27 (gage height, 20.32 

feet, from high-water mark), from rating curve extended above 13,000 second-feet; 

minimum, 53 second-feet Oct. 8, Nov. 11 (gage height, 0.70 foot); minimum daily, 382 

second-feet Sept. 10.

1910-15, 1943-50: Maximum discharge, that of Nov. 27, 1949; minimum, 21 second-feet 

Feb. 7, 1949 (gage height, 0.80 foot); minimum daily, 142 second-feet Jan. 1, 1949.

Remarks.--Records good except those below 1,000 or above 11,000 second-feet, which are 

fair. Flow regulated by Baker River power plant and Lake Shannon (see p. 169).

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25 

26

27 

28 

29 

30

31

Oct.

1,580 

1,670 

1,620 

1,790 

2,400

1,830 

1,830

1,780 

1,880 

1,970

1,740 

1,980 

1,860 

1,820 

1,580

1,980 

1,790 

2,350 

2,390 

2,400

2,360 

1,660 

814 

1,540 

1,180

890 

970 

2,290 

3,180 

2,330 

2,350

Nov.

1,960 

2,140 

2,100 

2,160 

2,220

1,300 

2,110 

1,700 

1,630 

1,630

1,620 

1,790 

1,680 

4,420 

4,050

2,880 

2,670 

2,830 

2,340 

2,070

1,920 

3,290 

5,260 

4,980 

10,300

13,200 

25,100 

a8, 670 

a5,600 

4,240

Month

Octo 

Nove 

Dece

Gal

Janu 

Febr 

Hare 

Apri

Klnv

June 

July 

Augu 

Sept

Wat

endar year 1949

h. ..............

1. ..............

St. .............

ember. ..........

er year 1949-50

Dec.

9,040 

11,500 

5,58C 

4,OOC 

3,690

2,930 

2,570 

2,570 

2,400 

2,320

2,400 

2,570 

2,240 

2,120 

2,180

2,210 

2,200 

2,220 

2,190 

2,580

2,280 

2,270 

2,180 

2,080 

2,010

1,860 

2,090 

1,980 

1,850 

1,980 

1,940

Jan.

2,080 

2,060 

2,380 

2,530 

2,510

2,170 

2,090 

2,150 

2,230 

2,210

2,180 

2,290 

a693 

a774 

a734

a762 

a749 

a656 

3900 

a2,130

1,890 

1,890 

1,970 

2,170 

al,720

a2,070 

al,620 

al,410 

a820 

a750 

a650

Feb.

a725 

a740 

a685 

aSSO 

a960

2,280 

2,280 

2,140 

2,120 

2,030

2,130 

2,120 

1,960 

1,840 

1,900

1,880 

1,940 

1,950 

1,900 

1,910

1,870 

1,850 

1,960 

1,980 

2,050

1,990 

2,000 

1,980

Mar.

2,000 

2,030 

5,750 

7,490 

5,860

4,060 

3,460 

3,140 

2,480 

2,500

2,400 

1,580 

2,240 

2,330 

2,310

2,220 

2,200 

2,620 

3,270 

2,660

2,570 

2,480 

2,460 

2,010 

1,990

1,980 

1,980 

2,030 

2,010 

2,080 

2,080

Observed

Discharge in 

second-feet

Maximum

3,180 

25,10(3 

11,500

25,100

2,530 

2,280 

7,490 

4,350 

6,450 

8,710 

7,880 

9,760 

4,180

25,100

Minimum

814 

1,300 

1,850

142

650 

550 

1,580 

1,850 

2,090 

2,990 

2,820 

2,150 

382

382

Mean

1,865 

4,262 

2,969

2,764

1,653 

1,776 

2,783 

2,372 

3,778 

6,042 

5,048 

3,055 

1,764

3,119

Runoff 

in 

acre-feet

114,700 

253,600 

182,500

2,001,000

101,600 

98,620 

171,100 

141,200 

232,300 

359,500 

310,400 

187,900 

105,000

2,258,000

Apr.

2,010 

1,850 

1,950 

2,130 

1,900

1,860 

2,180 

2,020

1,920 

1,970

1,920 

2,210 

1,990 

1,970 

2,510

3,790 

4,350 

2,660 

3,020 

2,920

3,000 

2,790 

2,650 

2,390 

2,390

2,070 

2,220 

2,310 

2,160 

2,060

May

2,190 

2,200 

2,420 

2,430 

2,350

2,220 

2,090 

2,250 

2,220

2,280

2,810 

4,660 

5,460 

5,420 

5,410

4,610 

4,230 

4,240 

4,220 

3,430

3,030 

5,030 

4,430 

4,030 

3,970

3,720 

5,690 

6,450 

4,850 

4,940 

3,850

Change in

contents 

in 

Lake Shannon 

Reservoir 

(aore-feet)t

+5,040 

+1,040 

-2,530

+18,050

-22,560 

+19,570 

+1,930 

0 

-3,560 

+7,030 

-900 

-770 

+110

+4,400

June

3,890 

4,970 

4,920 

4,540 

7,110

5,230 

4,450 

3,820 

3,010 

2,990

5,930 

6,740 

6,760 

6,660 

6,350

7,440 

8,430 

8,620 

8,670 

8,710

8,610 

7,690 

5,500 

5,660 

4,360

3,220 

4,730 

6,510 

7,630 

8,100

July

7,880 

7,320 

5,310 

6,950 

6,460

6,690 

5,420 

4,990 

6,370 

6,250

2,820 

3,760 

4,610 

5,040 

4,330

3,970 

4,360 

4,990 

5,190 

4,950

4,810 

4,960 

5,130 

5,270 

5,060

4,370 

4,160 

4,350 

4,120 

3,530 

3,080

Aug.

2,890 

3,390 

3,270 

2,720

2,470

2,520 

2,520 

2,530 

2,560 

2,530

2,460 

2,540 

2,570 

3,200 

9,760

5,420 

3,160 

3,220 

2,750 

3,050

3,090 

2,740 

3,660 

3,080 

2,730

2,450 

2,460 

2,340 

2,270 

2,210 

2,150

Sept.

2,190 

2,110 

1,870 

1,670 

1,920

2,230 

2,360 

2,190 

1,180 

382

1,540 

1,500 

1,520 

1,370 

1,510

748 

534 

1,330 

1,510 

1,010

1,000 

1,090 

974 

1,470 

4,180

4,160 

2,860 

2,370 

2,020 

2,120

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-feet

119,700 

254,600 

180,000

2,019,000

79,040 

118,200 

173,000 

141,200 

228,700 

366,500 

309,500 

187,100 

105,100

2,263,000

Discharge in 

second-feet

Mean

1,347 

4,279 

2, £27

2,788

1,285 

2,128 

2,814 

2,373 

3,719 

6,159 

5,034 

3,043 

1,766

3,125

Per 

square 

mile

7.21 

15.8 

10.8

10.3

4.76 

7.88 

10.4 

8.79 

13.8 

22.8 

18.6 

11.3 

6.54

11.6

Runoff

Inches

8.31 

17.68 

12.50

140.19

5.49 

8.21 

12.01 

9.81 

15,88 

25.45 

21.49 

12.99 

7.30

157.12

t Data furnished by Puget Sound Power & Light Co.

a No gage-height record; discharge computed on basis of power-plant records.
178 SKAGIT RIVER BASIN

Alder Creek near Hamilton, Wash.

Location.--Water-stage recorder, lat. 48°32', long. 121°57', in Ni sec. 18, T. 35 N., R.

 'f K. , at railroad trestle, three-quarters of a mile upstream from mouth and 2 miles 

sast of Hamilton.

Drainage area.--8.8 square miles.

Records available.--August 1943 to September 1950.

Extremes.--Maximum discharge during year, 477 second-feet Dec. 27 (gage height, 3.26

 feet); minimum, 9.8 second-feet Sept. 12, 13, 22, 23 (gage height, 0.64 foot).

1943-50: Maximum discharge, that of Dec. 27, 1949; minimum, 6.3 second-feet Sept. 

4-12, 1944.

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

No diversion or regulation.

Rating tables, water year 1949-50 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Dec. 26, 27)

Oct. 1 to Dec. 26

1.2

1.3 

1.5 

1.7 

1.9 

2.2

Dec. 27 to Sept. 30 

0.6

30

50

76

125

8.5

12

1.1 

1.3 

1.5

1.7 

1.9

2.1 

2.3 

2.6 

3.0

101

135

174

220

294

402

Discharge, in aeoond-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

10

10

10

17

18

15

14

14

22

22

30

26

22

21

26

22

22

20

19

18

16

17

17

17

17

16

20

40

28

26

24

Nov.

23

22

21

20

20

19

18

18

20

18

22

32

40

50

39

32

28

26

23

22

20

27

36

33

50

63

112

88

75

66

-

Dec.

69

101

88

76

70

63

54

47

46

39

34

32

29

27

32

32

32

31

27

26

25

57

86

90

72

101

322

396

266

172

119

Jan.

90

71

59

53

48

46

43

40

38

37

35

33

32

a31

a30

a30

a31

a31

a32

a45

52

74

70

56

a50

45

42

39

37

36

36

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April .........................

May ...........................

June ..........................

Jul'y ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

35

a34

a34

a33

33

34

31

36

35

33

33

34

44

47

72

85

79

71

77

69

67

82

101

208

181

264

178

121

.

-

Secondfoot-days

6 18

1,063

2,661

12,911.3

1,392

2 151

3)l53

1,994

1,408

752

469

407

371

16,459

Mar.

95

84

146

210

187

206

148

117

104

88

74

64

59

56

57

69

119

128

168

131

121

107

90

78

69

64

67

66

60

60

61

Maximum

40

112

396

396

90

264

210

11

53

36

17

20

27

396

Apr.

93

111

104

87

77

69

63

59

57

53

52

64

64

61

75

81

81

74

70

74

67

65

59

54

51

48

48

44

44

45

-

May

47

48

45

45

49

45

43

43

44

44

47

51

53

53

52

50

52

50

51

45

45

42

40

38

38

38

48

42

42

40

38

Minimum

10

18

25

8.9

30

31

56

44

38

17

13

11

10

10

June

36

35

33

33

31

31

30

28

27

26

26

26

25

25

25

24

24

a23

a23

a22

a22

a24

a23

a21

a20

a!9

IS

18

17

17

-

Mean

19.9

36 . 1

85.8

35.4

44.9

76 . 8

102

66 .5

45 . 4

25.1

15 !l

13.1

12.4

45.1

July

17

16

16

16

16

16

16

17

17

16

16

16

16

16

15

15

15

15

15

14

14

14

14

14

14

14

14

14

14

14

13

Per 

square 

mile

2

4.10

9.75

4.02

5.10

11.6

7.56 

5.16

2.85

1.72

1.49

1.41

5.12

Aug.

13

14

13

13

13

14

14

13

13

12

12

12

12

14

IS

14

13

13

12

12

12

12

20

14

14

13

12

12

12

11

11

Sept.

11

11

11

11

11

11

11

11

11

11

11

10

1011

11

11

10

10

10

10

10

10

10

14

17

27

18

19

16

ie

Runoff

Inches Acre-feet

2 61

4.53 2^150

11.25 5,280

54.57 25,620

5.83 2,760

9.09 4,270

13.33 6,250

8.43 3,960 

5 95 2 790

3 . 18 1, 490 

1.98 930

1.57 736

69.57 32,650
SKAGIT RIVER BASIN 179

Day Creek near Lyman, Wash.

er , _hws 

2| miles southeast of Lyman.

Drainage area. 38.1 square miles.

Records available.--July 1943 to September 1950.

Extremes.--Maximum discharge during year, 5,570 second-feet Dee. 28 (gage height, 8.35 

reet }; minimum not determined, occurred during period of no gage-height record Sept. 

3-26.

1943-50: Maximum discharge, that of Dec. 28, 1949; minimum discharge, 5.9 secondfeet Feb. 1, 1945; minimum gage height, 0.64 foot Aug. 23, 24, 1945.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

Oct.

42

40

39

488

436

212

15?

81 118

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

554

560

670

390

239

177

274

179

142

116

99

86

75

68

62

58

54

55

180

1,120

331

212

153

Nov.

124

103

90

80

73

r-7

63

109

288

254

940

910

770

745

401

271

209

174

145

125

110

456

496

R25

1,000

1,760

2,000

1,030

625

560

-

Dec.

1,270

1,390

602

424

390

;as

239

169

179

143

125

116

105

107

142

131

1?5

131

110

98

91

344

648

500

337

291

1,990

4,060

1,640

910

602

Jan.

409

321

260

22C

230

200

170

150

125

lie

105

92

88

85

85

87

90

100

150

500

1,160

1,120

560

337

270

230

210

190

170

160

150

Month

October ......... .............

November ......................

December ......................

Calendar year 1949 . . ......

January .......................

February ....... ....... . ....

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

April . . . . ........ . ......

May ................... ....

June .......................

July .... .................. . .

August ...... ..............

September ... .................

Water year 1949-50 ..........

Feb

140

140

140

150

180

25U

194

291

203

170

170

219

917

695

1,890

940

540

405

432

294

285

670

625

1,400

1,060

1,640

648

405

-

-

-

Secondfoot-days

7,382

14,603

17,762

105,879

8,140

15,093

15,941

12,634

11,412

11,025

4,000

2 , 998

2,027

123,01?

Mar.

291

309

1.89U

1,120

1,190

850

560

436

397

337

279

247

221

194

257

727

1,160

745

770

520

540

456

341

291

265

263

300

247

212

£29

297

Maximum

1.12C

2,000

4.06C

4.06C

1,160

1,890

1,890

1,190

745

48E

0£3

670

400

4 , OuO

Apr

850

500

393

312

30O

325

265

241

234 2"4

268

1,000

602

424

880

1,190

850

492

412

448

412

3?1

265

231

207

192

192

185

198

221

-

May

265

300

254

241

325

263

239

241

249

294

420

520

480

452

393

358

484

386

390

347

382

397

325

512

378

460

745

428

390

350

344

Minimum

39

63

91

28

85

140

194

185

239

257

46

36

20

20

June

397

428

480

488

393

294

257

265

268

344

428

420

350

315

334

460

484

409

432

412

321

468

464

303

274

268

303

351

341

294

-

Mean

238

487

573

290

263

539

514

421

368

129

96 . 7

67.6

337

July

 ~J 63

236

229

224

203

192

164

183

212

151

131

126

128

106

91

84

82

82

109

79

74

68

61

57

52

48

46

201

164

87

57

Per 

square 

mile

6.25

12.8

15.0

7.61

6.90

14.1

13.5

11.0

9.fa6

3.39

2.54

1.77

8.85

Aug.

57

50

46

43

41

49

66

49

42

40

38

37

36

70

670

218

131

92

74

63

56

51

331

164

113

86

71

61

55

51

47

Sept.

44

43

40

36

34

52

30

29

28

27

26

25

24

23

23

22

22

21

21

21

20

20

20

100

300

400

217

174

120

85

Runoff

Inches Acre-feet

7.21 14,640

14.25 28,960

17.34 35,230

103.34 210,000

7.95 16,150

15 '.56 31 ! 620

12.35 25 , 060

11.14 22,f40

10.76 21,870

5.90 7,930

° 9 7 5 950

1.98 4J020

120.08 244,000

Shifting-control method used Oct. 28 to Nov. 26, Dec 

Aug. 10, Aug. 15 to Sept. 2, Sept. r3 /-30.

Jan. 10-12, 21-24, Feb. 7 tc
180 SKAGIT RIVER BASIN

Coal Creek near Sedro Woolley, Wash.

Location.--Water-stage recorder, lat. 48°31'50", long. 122°09'00", In S| sec. 10, T. 35 

N., ti. 5 E., at canyon mouth, 4 miles upstream from mouth and 4 miles northeast of 

Sedro Woolley.

Drainage area.--1.8 square miles.

Records available.--October 1947 to June 1950 (discontinued).

Extremes.--Maximum discharge during period October 1949 to June 1950, 468 second-feet 

Dec. 27 (gage height, 3.60 feet), from rating curve extended above 140 second-feet; 

minimum, 1.1 second-foot Oct. 3.

1947-50: Maximum discharge, that of Dec. 27, 1949; minimam, 0.3 second-foot 

Sept. 12-14, 1949.

Remarks.--Records fair Oct. 1 to Dec. 29; poor during remainder of year. No diversion 

or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

1.5 

1.4 

1.2 

8.8 

16

7.0 

4.9 

3.8 

20

16

21 

16 

11

7.0 

24

15 

11

8.8 

7.0 

5.5

5.2

4.4 

4.1 

3.6 

3.2

3.4 

4.9 

28 

12 

7.9 

5.9

Nov.

5.2

4,6 

4.1 

3.6 

3.2

3.2 

2.9 

2.7 

2.9 

2.7

2.7 

5.9 

11 

17 

9.3

7.0 

5.2 

4.9 

4.4 

4.1

3.6 

7.4 

15 

10 

24

26 

70 

24 

16 

13

Dec.

41 

4.5 

17 

13 

8.8

6.6 

5,2 

4,2 

4,4 

3,4

2.7 

2.6 

2.6 

2.4 

3.2

3.2 

3.2 

3.2 

2.4 

2.2

2.2 

13

20 

14 

9.3

9.8 

162 

*198 

40 

25 

15

Jan.

11

9 

8 

7 

6

5.5 

5 

4.5 

*4,3 

4.3

3.9 

3.8 

3.6 

3.5 

3.4

3.3 

3.3 

3.4

4 

*b!6

b22 

b23 

b!5

12 

10

9 

8 

7 

6.5 

6.2 

5.9

Feb.

5.6 

5.4 

5.3 

5.1

5.0

5.3 

*6.0 

7.7

7.0 

7.2

7.5 

8.7 

15 

15 

25

20 

15 

14 

15 

12

11 

17 

19 

42 

30

39 

27 

20

M°nth forays

Octc 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Th

lendar year 1949

ember ..... ... ...... ....

290.5 

315.6 

684.8

,409.6

237.4 

411.8 

536.4 

399.4 

417 

311.0

Peak discharge (base, 100 sec. -ft.). Nov.

sec. -ft.; Dec. 27 (7 p.m.) 468 sec. -ft.; Mar 

* Winter discharge measurement made on thi 

t Result of discharge measurement . 

b Stage-discharge relation affected by Ice 

Note. No gage-height record Dec. 30 to Ja 

on basis of records for nearby streams.

Mar.

17 

17 

56 

49 

33

30 

20 

16 

14 

12

11 

9.8 

8.7 

8.2 

8.7

15 

32 

22 

22 

16

15 

14 

12 

10 

11

9.8 

10 

9.8 

8.7 

9.2 

9.5

Maximum

28 

70 

198

198

23

42 

56 

22 

20 

15

Apr.

13

14 

13 

13 

14

12 

10 

10 

10 

8.7

9.5 

18 

14 

12 

20

22 

20 

16 

18 

18

16 

14 

12 

11 

10

9.5 

9.5 

9.2 

11 

12

May

12

11 

10 

11 

14

13 

12 

12 

12 

12

16 

19 

18 

16 

15

14 

15 

13 

13 

12

13 

12 

11 

11 

13

14 

20 

15 

14 

12 

12

June

13 

13 

15 

15 

13

10 

9.0 

8.7 

9.0 

11

13 

12 

11 

10 

10

12 

12

11 

10 

9.8

8.8 

12 

12 

8.7 

8.0

7.0 

6.8 

6.8 

6.8 

6.6

P 

Minimum Mean sqi

mj

July Aug

tl.6

Sept.

to.

er Runoff

L l e Inches Ac re- feet

1.2 9.37 5.21 6.00 576 

2.7 10.5 5.83 6.52 626 

2.2 22.1 12.3 14.15 1,360

.4 9.34 5.19 70.44 6,760

3.3 7.66 4.26 4.9O 471 

5.0 14.7 8.17 8.51 817 

8.2 17.3 9.61 11.08 1,060 

8.7 13.3 7.39 8.25 792 

10 13.5 7.50 8.62 827 

6.6 10.4 5.78 6.43 617

- - - 7,150

27 (12:30 a.m.) 359' sec .-ft .; Dec. 1 {8:30 p.m.) 200 

. 3 (6 p.m.) 115 sec. -ft . 

s day.

n. 8, Jan. 14-13, Jan. 24 to Feb. 6; discharge computed
3KAC3IT RIVER BASIN

East Fork Nookachamps Creek near Clear Lake, Wash.

Location.--Staff gage, lat. 48°g5'25", long. 122°12'45 n , in NE^ sec. 19, T. 34 N. , R. 5

., at nighriay bridge, 3 miles south of Clear Latce and 3% miles upstream from moath.

Drainage area.--19.a square miles.

Reccrds available-.--Jaly 1943 to September 195u

Extremes.--Maximum di-c arse observed during year, 2,010 second-feet Dec. 2c (gage height 

 y.39 feet) ; minimum observed, ] .4 second-feet Sept. 24 (gage neight, 2.1C1 feet).

1943-50: Maximum disc .arise observed, 8,710 second-feet Oct. 25, 1945 (gage height,

10.3 feet, from high-water mark), from rating curve extended above 500 second-feet;

minimum observed, 0.1 second-foot July 8, 9, 1944.

Remarks.--Records good October to December, others fair. Gage read twice dsily. Several

diversions for irrigation and municipal use

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

f .

£o

29

30

31

Oct.

6.4

6.4

6.7

6.1

4.0

4.9

4.6

5. a

177

103

378

438

51

Nov.

40

30

23

17

13.5

12

-29

97

148

198

469

378

103 ' Z20

90 157

48

37

30

25

20

lo.5

14.5

14.5

103

82

64

54

38

25

24

20

14.51 36

13. 5 | 469

55

198

564

177

90

54

188

500

138

10C

95

-

Dec.

500

4C9

177

167

Jan

157

100

59

54

Feb. Mar

a!30 1 78

a!20

al20

a!20

148 62 148

120 66

101

95

95

95

93

81

72

81

83

92

93

66

57

48

97

69

62

59

57

67

71

75

95 72

100 81

97 564

101 564

364

148

138

120

103

101

157

232

268

500

564

157

157

148

129

112

469 364 120

308 | 177 ! 138

268

321

438

1,020

1,720

840

138

138

129

129

129

120

268 | 120

?32 138

335

335

665

188

76

_

-

76

564

438

500

Apr May

 - 

101 69

232 82

232

167

157

74

92

95

220 ! 138 1 81

148 101

129

112

112

100

87

82

87

£20

735

438

268

177

256

256

148

138

112

101

89

101

89

86

81

86

Vnn+h SecondMonth foot-days

October ..... ... ..... .... 2,756.4

November .. . ..... .. .... 3,780.5

December ...... ........ 8.845

Calend&r year 1949 . . 36,046.7

January... ....... . .. ... . 4,089

February .... .. ..... .. 5,693

March . . . ........... ....... 6,114

April . . ... ... ..... 4,583

May . .... ........ ..... 3,272

June ...... ... , . . ...... 2,190

July . . . . . . . . ...... .... 620.0

August ...... ... ...... . . 290.1

September . . ... ....... . 417.2

Water year 1949-50 - 42,850.2

Maximum

564

500

1,720

1,720

564

665

735

597

378

112

52

84

120

1,720

97

95

89

95

597

167

138

256

438

209

148

138

157

133

112

82

72

67

68

71

67

74

80

-

76

86

82

86

148

148

138

120

112

June

87

101

101

87

76

66

58

58

58

82

72

76

68

57

74

90 112

103 93

86

89

76

74

80 75

103

101

80

74

103

378

103

86

98

86

103

Minimum

4.0

11

72

2.5

48

76

67

74

45

7.5

3.1

1.4

1.4

47

112

74

45

48

54

July

52

46

29

28

27

24

19

19

Aug

10.5

7.5

5.5

4.9

4.3

6.1

1

27

2.5

3.0

5.7

21 5.2

15 4.9

15

14.5

12.5 1

12

11

10

9.0

31

19

17

14.5

9.0

8.5

7.5

8.0

62 11.5

59

75

53

-

Mean

88.9

126

285

98.3

132

210

197

153

106

73.0

20.0

9.36

13.9

117

52

22

17

12

Per

square 

mile

4.63

6.56

14.8

5.15

6.88

10.9

10.3

7.97

5.52

3.80

1.04

.488

.724

6.09

1.9

3.1

7

84

14

1 L.5

3.0

3.1

5.8

4.9

1.3

3.0

3.7

5.5

5.2

1.9

1.3

1.0

5.7

Sept.

3.0

3.0

3.0

3.0

2.8

2.8

2.8

2.6

2.5

2.4

2.2

2.1

1.9

1.9

1.9

1.9

1.8

1.6

1.6

1.5

1.5

1.5

1.5

1.4

120

89

66

49

26

3.1 1

Runoff

Inches

5.34

7.3?

17.13

69.31

7.9C

11.41

11.84

8.88

6.34

4.24

1.20

.56

.61

82.99

Acre-feet

5,470

7,500

17,540

71,490

8.110

11,690

12,130

9,090

6,490

4,340

1,230

575

828

84,990

a Ho gage-height 

ear Lyman. 

Note.--Shifting-control method

ecord; disc'iafge computed 

-sed Dec

basis of weather records and records for Day Cr 

Jan. 31, Feb. 5 to Sept. 30.
SAMISH RIVER BASIN

Samlsh River near Burlington, Wash.

Location. Water-stage recorder, lat. 48°32'35", Ions. 128°20 i 25", in NE-f sec. 7, T. 35 

W., H. 4 E., 500 feet downstream from highway bridge, half a mile downstream from 

Friday Creek, and 5 miles north of Burlington.

Drainage area. 88 square miles.

Keeords available.--July 1943 to September 1950.

Extremes.--Maximum discharge during year, 5,830 second-feet Dec. 28 (gage height, 11.89 

reet); minimum, 25 second-feet Sept. 22.

1943-50: Maximum discharge, that of Dec. 28, 1949; minimum recorder, 18 secondfeet July 16, 1944, but may have been less during periods of no gage-height record 

during July and Augjct 1944.

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

those for periods of no gage-height record, which are poor. State fisl- tiatchery on 

Friday Greek diverts abcut 4 second-feet which is returned above station. There is 

evidence of slight regulation and there may be some pumping for irrigation.

Rating tables, water year 1949-50, except periods of shirting control 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Nov. 27 Sept. 30

2,3 

2.5 

2.7 

3.0

3.3 

3.6 

4.0 

4.5 

5.0

371

527

712

5.5

6.0

6.5

1,190

1,470

5.6

Discharge, in second feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

34

33

32

71

127

102

76

61

158

196

165 16?

130

llu

207

171

138

115

102

93

8E

82

78

76

71

71

76

224

186

136

115

Nov.

103

96

89

85

81

78

76

76

86

93

Dec.

685

1,660

950

642

485

405

318

263

249

£15

102 183

157 171

210

321

256

196

165

151

140

129

118

134

£38

2O5

365

430

1,360

1,000

800

590

"

159

150

169

183

202

217

173

154

150

520

920

1,100

700

608

2.51C

5,020

2,840

1,600

1 , 150

Jan,

925

800

700

620

560

540

580

480

435

450

450

405

380

350

340

330

350

450

600

900

1,000

1,020

840

650

550

500

450

4?0

400

380

360

Feb.

350

540

450

470

550

625

538

590

538

485

555

680

925

880

950

860

660

555

6?5

555

555

760

780

1,180

975

1,120

950

720

-

-

-

Month SecondMontn foot-days

October ................. ..... 3,489

November . . ................... 7,930

December ...... ............. £4,751

Calendar year 1949 ....... . 93,054

January .... ..... ........ . 17 ,£15

February .......... . . , . .... 19, £21

March . ........... ...... 21,648

April ................ ..... . 14,058

May ................... . ... . i',27B

June ............. . . , . . . , , 3,077

July ........ .............. . . 1,439

August ............... ..... 1,178

September ..................... i ,O09

Water year 1349-50 ......... l rj l,291

Mar.

590

520

836

1,480

1,1£0

1,390

1,100

820

740

700

57P

435

420

381

390

468

975

925

975

800

740

571

502

450

420

572

608

520

485

450

Maximum

224

1,360

5,020

5,023

1,020

1,180

1,480 9-75

278

152

128

95

5,C20

Apr.

780

975

800

625

555

502

435

387

354

324

300

572

608

450

608

780

680

520

435

405

378

360

May

228

246

221

210

278

246

217

204

196

189

202

230

206

196

181

167

20.3

219

217

219

215

210

354 1 181

290

270

278

253

235

224

165

169

179

221

189

167

156

144

Minimum

3"

l f

150

25

330

340

381

224

144

£9

34

27

26

June

145

150

152

148

133

114

105

101

97

100

109

108

98

94

92

105

106

95

95

95

87

93

114

91

81

74

73

73

^4

69

Mean

113

264

796

255

555

636

698

469

103

46.4

36 . Li

333

July Aug.

I 66 1 36

£2

60

59

56

54

51

52

61

54

51

48

46

44

45

42

42

39

424"

40

3T

37

35

515

31

42

48

42

33

Per 

square 

mile

1.28

3.00

9. 07

2 . 90

6.31

7.80

7.93

5.33

2.30

1.17

.527

.432

.382

3 .77

36

35

54

34

34

33

29

26

27

27

27

27

29

46

43

35

5?

30L'3

29

29

128

72

51

43

38

34

34

Sept

31

30

30

30

29

29

29

29

28

28

27

27

27

27

27

27

27

26

26

£6

27

26

26

34

49

9a

62

51

42

37

-

Runoff

Inches Acre-feet

1.47 6,920

3.35 15,730

10.46 49,030

 - - 

39.32 184,600

7.28 34,150

8.12 38,120

9 15 42,940

2.65 12J450

1.30 6,100

. 61 2 , 850

.50 2,340 

.43 2,000

51.tr 24O.60&

Peak discharge (base. 1,100 sec.-ft.).--Nov. 27 (6

24 (Itc -ft. Dec. :e (11 5,83 Feb. 24 (7 tc
WHATCOM CREEK BASIN 183

Whatcom Creek below hatchery, near Bellingham, Wash.

Location. Water-stage recorder, lat. 48°45'10", long. 122°25'40", in NW£SE£ sec. 28, T. 

iiH a., R. 3 E., in Whatcom Falls Park, seven-eighths of a mile downstream from Lake 

Whatcom and 2 miles east of Bellingham.

Drainage area. 56 square miles.

Records available. October 1945 to September 1950.

Extremes. Maximum discharge during year, 1,350 second-feet about Dec. 29 (gage height, 

about 6.0 feet, from recorded range in stage); minimum, 2.6 second-feet July 12, 13, 

14, 15 (gage height, 1.51 feet).

1945-50: Maxiroum discharge, that of about Dec. 29, 1949; minimum, 2.5 second-feet 

Oct. 14, 21, 1946.

Remarks. Records fair. Flow completely regulated by Lake Whatcom (usable capacity, about 

SHTHOO acre-feet under normal operating conditions). City of Bellingham diverts about 

30 second-feet from lake for municipal supply.

Cooperation. Gage-height record collected in cooperation with city of Bellingham.

Rating table, water year 1949-50, except period cf ice effect

(gage height, In feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Nov. 28, Jan. 20-28, 

Feb. 5, B, Feb. 8 to Mar. 13, Sept. 24-30)

1.5 2.4

1.7 8.5

1.9 19.5

2.1 36

2.4 74

2.7 124

3.0 185

3.3 263

3.6 350

4.0 475

4.5 655

5.0 865

5.5 1,100

6.0 1,350

Discharge, In second-feet, water year October 1949 to September 1950

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

Oct.

5.6 

5.6 

5.6 

5.3 

5.6

5.3 

5.6

b.6 

6.0 

10

5.6 

5.6 

5.3 

5.3

5.6

5.6 

5.6 

5.6 

5.6 

5.3

5.3 

5.3 

5.3 

5.3

5.6

5.6 

5.6 

6.0 

5.6 

5.6 

6.0

Nov.

5.0

e'.o

5.6 

5.6

5.6 

5.6 

6.0 

6.4 

6.4

"7.3

6.8

7.8 

7.8 

6.8

6.8 

6.8 

6.8 

6.8

S.S

6.8 

6.8 

6.8 

6.8 

7.3

3.3

10 

277 

528 

528

Dec.

528 

635 

695 

655 

615

580 

528 

482 

440 

410

371 

335

306 

148 

258

247 

23? 

236 

133 

5.8

5.2 

6.2

365

a5oo

a650 

a820 

31,050 

31.2SO 

1,OOO 

854

Jan.

755 

775 

599 

E99 

204

£35 

*545 

475 

440 

395

380 

344

306 

162 

D6.5

b6.5 

b6.5 

b6. 5 

b6.5 

b220

380 

440 

458 

440 

425

395 

365 

329 

a300 

a£10 

a8

Feb.

a8

aS 

a8

149

1G3 

al88 

213 

260 

308

359 

356 

395 

425 

475

482 

475 

458 

440 

425

410 

425 

425 

458 

482

528 

54b

528

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

ber.... .................................

lendar year 194C

ter year 1949-50 .......................

Mar.

462 

475 

475

528 

562

598 

580 

562 

545 

510

458 

425 

410 

371 

356

344 

377 

425 

458 

475

379 

475 

440 

410 

380

365 

362 

356 

335 

323 

311

Apr.

362 

395 

410 

410 

395

371 

347 

323 

303 

E83

263 

149 

8.9 

8.1 

9.3

36 

8.1 

67 

475 

304

174 

174 

174 

172 

65

7.3 

6.9 

6.9 

6,9 

6.9

Secondfoot-days

176.5 

1,515.5

14,546.2

35,754.4

10, 316. 5 1 

9,453 

13,552 

5,721.3 

349.0 

147.7 

123.9 

192.5 

152.1

56,252.2

May

6.9 

6.9 

6.3 

C.9 

6.9

7.7 

7.3 

7.3 

131 

8.9

8.1 

7.7 

7.7 

7.3 

7.3

7.3 

7.7 

7.7 

7.3 

7.3

7.3 

7.3 

7.3 

7.3 

6.9

6.9 

6.6 

6.6 

6.9 

6.9 

6.9

Maximum

10 

528 

1,280

1,280

775 

545

598 

475 

131

6^9 

6.9 

5.8

1,28C

June

6.6 

6.9 

6.9

6.9 

6.6

6.6 

6.6 

6.6 

4.9 

3.3

3.6 

3.3 

3.1 

4.1 

6.2

5.5 

4.9 

5.2

5.2 

5.2

5.2 

4.6 

3.3 

3.8 

3.8

3.6 

3.8

3.8 

3.8

3.8

"

July

3.8 

4.1 

3.6 

3.3 

3.3

3.3 

3.3 

3.1 

3.1 

3.1

3.1 

2.8 

2.8

2.6 

2.B

3.3 

3.1 

3.3 

3.6 

3.8

5.5 

5.8 

5.8 

5.2 

5.5

5.5

6.2

e.e

6.9

6.2 

5.5

Minimum

5.3 

5.6 

5.2

3.8

6.5 

8 

311 

6.9 

6.6 

3.1 

2.6 

5.6 

4.3

£* . 6

Aug.

5.8 

5.8 

5.8 

6.2 

6.2

6.2 

6.2 

6.2 

6.2 

6.6

6.6 

6.2 

6.2 

6.2 

6.6

6.2 

6.6 

6.2 

6.6 

6.2

6.2 

6.9

6.6 

6.2 

6.2

6.2 

6.2 

5.8 

5.8 

5.8 

5.8

Mean

5.69 

5C.5 

469

96. 0

333. 

33£ 

431 

191 

11.3

4r.92

4.19 

6.21 

5.07

154

Sept.

5.6 

5.8 

5.8 

5.8 

5.B

5.8 

5.5 

5.5 

5.5 

5.5

5.2 

5.2 

5.2 

5.2 

4.9

4.6 

4.6 

4.3 

4.3 

4.9

4.9 

4.9 

5.2 

4.9 

4.6

4.6 

4.6 

4.3 

4.3 

4.6

Runoff In 

acre-feet

350 

3,010 

28,650

70,930

20,460 

18,750 

26,680 

11,350 

692 

293 

£58 

382 

302

111,600

ement, recorded range in

238382 O - S3 - 13
184 NOOKSACK RIVER BASIN

Nooksack River above Cascade Creek, near Glacier, Wash.

Location.--Water-stage recorder, lat, 48°54 121°5n>50'', in NV'i sec. 1, T. 39

N. , K. 7 E. , a quarter of a mil" upstream from Cascade Creek, half a mile downstream 

from Dead Horse Creak, 4j miles ^ast of Glacier, and 6 miles upstream from Gla:ier

Drainage area.--105 square miles.

Records available.--October 1937 to September 1950.

Average discharge. 13 years, 727 second-feet.

Extremes.--Maximum discharge during year, 10,500 second-feet Kov. 26 (gage height, 10.50 

reetj . from rating curve extended above £ ,700 second-feet on basis of contracted-opening 

determination of peak flow of flood of Dec. 24, 1950, at gage height 8.15 feet; minimum 

not determined, protably occurred during period of no gage-height record in January.

1937-50: Maximum discharge, that of Nov. 26, 1949; minimum, 73 second-feet Feb. 16, 

1949 (gage height, 2.51 feet).

Remarks.--Records fair No diversion. Some regulation at low flow by power plant at 

Revisions (water years).--W 1092: 1946.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

398 

344 

311 

665 

495

404 

334 

302 

617 

484

695 

629 

484 

409 

855

556 

451 

378 

339 

321

307 

302 

29B 

298 

293

298 

409 

1,840 

836 

617 

556

Nov.

539 

522 

478 

446 

440

393 

354 

368 

414 

368

611 

677 

713 

1,230 

862

744 

822 

1,030 

738 

623

550 

1,470 

1,440 

1,230 

2,630

3,240 

4,390 

2,060 

1,510 

1,220

Dec.

1,840 

1,970 

1,180 

930 

792

690 

602 

556 

525 

484

452 

444 

428 

408 

404

376 

367 

337 

310 

293

299 

313 

323 

323 

310

310 

368 

765 

875 

625 

512

Jan.

464 

430 

390 

360 

340

f313 

f296 

290 

280 

273

272 

272 

272 

272 

290

310 

270 

320 

470 

900

880 

950 

870 

780 

700

650 

600 

560 

540 

520 

500

Feb. 1 Mar.

480 

f452 

435 

410 

390

370 

360 

350 

340 

330

320 

315 

315 

348 

875

930 

606 

520 

525 

472

436 

424 

428 

502

606

1,250 

820 

620

u«_tv. SecondMonth foot-days

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194S 

ary

2

h ............. ... . . ...

ember .....................

15,525 

32,112

18,411

82,980

14,634 

14,229 

15,189 

14,234 

29,421 

65,700 

60,590 

39,080 

28,339

ter year 1949-50 ..... .... 347,464

534 

484 

922 

1,220 

990

820 

655 

574 

512 

464

424 

396 

382 

362 

344

354 

448 

468 

456 

436

428 

420 

386 

368 

362

354 

354 

327 

316 

313 

316

Maximum

1,840 

4,390 

1,970

4,390

950 

1,250 

1,220 

740 

1,880 

3,150 

2,730 

3,040 

1,840

4,390

Apr.

379 

368 

354 

334 

337

354 

340 

344 

348 

337

362 

690 

665

561 

592

665 

740 

588 

552 

610

630 

579 

520 

472 

448

416 

408 

393 

416 

432

May

444 

464 

452 

452 

456

436 

424 

452 

512 

574

792 

1,250 

1,470 

1,430 

1,360

1,220 

1,220 

960 

848 

740

930 

1,140 

960 

875 

960

1,220 

1,880 

1,670 

1,360 

1,220 

1,250

June

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

2, 

2, 

2, 

2, 

2,

2, 

3,

s!

3,

3, 

2, 

2,

1, 

1,

1, 

2, 

2,

2,

2,

Minimum Mean

293 501 

354 1,070 

293 594

110 775

270 472 

315 508 

313 490 

334 474 

424 949 

1,320 2,190 

1,180 1,955 

960 1,261 

765 945

270 952

Peak discharge (base, 3,600 sec . -ft . ) . --Nov. 22 (8 p.m.) 3,840 sec. -ft.

430 

590 

750 

920 

840

470 

320 

360 

390 

630

020 

380 

330 

200 

280

730 

040 

150 

150 

150

040 

530 

240 

920 

710

880 

060 

430 

830 

930

July

2!

2,' 

2,

2! 

I'

I, 

1, 

1, 

1,

1,

l' 

1, 

1,

1, 

1, 

1, 

1,

1,

1, 

1, 

1, 

1, 

1, 

1,

Per 

square 

mile

4.77 

10.2 

5.66

7.38

4.50 

4.84 

4.67 

4.51 

9.04 

20.9 

18.6 

12.0 

9.00

9.07

; NOV. c

730 

530 

530 

630 

630

530 

330 

280 

480 

060

790

710 

920 

920 

750

670 

710 

750 

970 

750

790

880 

920 

920 

840

710 

510 

590 

360 

220 

180

Aug.

l! 

1,

1, 

1, 

1, 

1,

1, 

1,

1, 

3,

1, 

1, 

1, 

1, 

1,

1, 

1,

l',

1,

1, 

1, 

1, 

1, 

1,

250 

280 

110 

020 

990

110 

080 

020 

020 

990

020 

020 

990 

580 

040

710 

390 

320 

360 

430

390 

360 

550 

360 

220

180 

180 

080 

050 

020 

960

Sept

1,050 

1,080 

1,110 

1,050 

960

902 

875 

848 

848 

848

848 

848 

848 

875 

848

848 

848 

B2C 

792 

792

848 

848 

848 

1,180 

1,840

1,360 

990 

902 

820 

765

Runoff

Inches

5.50 

11.37 

6.52

100.21

5.18 

5.04 

5.38 

5.04 

10.42 

23.27 

21.46 

13.84 

10.04

123.06

Acre-feet

30,790 

63,690 

36,520

561,300

29,030 

28,220 

30,130 

28,230 

58,360 

130,300 

120,200 

77,510 

56,210

689,200

6 (11:30 p.m. )

10,300 sec. -ft. 

f Computed on basis of partly estimated gage-height record. 

Note. No gage-height record .Jan. 2-5, Jan. 8 to Feb. 1, Feb. 3-12; discharge computed 

of records for nearby streams.

on basis
NOOKSACK RIVER BASIN 185

Nooksack River at Deming, Wash.

Location. Water-stage recorder, lat. 4S C 48'35", long. 122°12'15", in lot 12, sec. 6, T. 

a« 11., R. b E. , 800 feet downstream from South Fork and 1 mile southeast of Deming. 

Datum of gage is 203.6 feet above mean sea level, datum of 1929.

Drainage area.--580 square miles.

Records available.--July 1935 to September 1950. September to December 1910 (gage heights 

only) at site 1 1/8 miles downstream; December 1910 to March 1911 (gage heights only) at 

Nugent's bridge, 4 miles downstream from Deming.

Average discharge.--15 years (1935-50), 3,100 second-feet.

Extremes.--Maximum discharge during year, 36,500 second-feet Nov. 27 (gage height, 15.11 

reet); minimum, 1,030 second-feet Oct. 3 (gage height, 4.33 feet).

1935-50: Maximum discharge, 38,000 second-feet about Oct. 25, 1945, from rating 

curve extended above 25,000 second-feet; maximum gage height, that of Nov. 27, 1949; 

minimum discharge, 560 second-feet Nov. 9, 10, 1936, but may have been less during 

periods of ice effect.

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

No diversion. Some regulation at power plant at Excelsior has little if ary effect at 

this station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

3 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1 , 240 

1,120 

1,060 

2,440 

2,730

2,440 

1,840 

1,520 

3,640 

3,440

4,100 

3,660 

2,440 

1,980 

4,340

3,030 

2,350

1,950 

1,700 

1,560

1,430 

1,320 

1.260 

1,200 

1,180

1,180 

1,490 

7,950 

3,990 

2,730 

2,260

Nov.

2,000 

1,830 

1,690 

1 , 580 

1,520

1,440 

1,330 

1,360 

1,650 

1,510

2,350 

3,660 

3,990

5,810 

3,770

2,930 

2,730 

3,030 

2,440

2,000

1,780 

3,160 

5,940

4,100 

8,090

10 , 200 

24,400 

11,900 

8,670 

6,990

Dec.

11,100 

15,600 

7,530 

5,940

5,060

4,340 

3,770 

3,340

3,130 

2,640

2,350 

2,260 

2,080 

2,000 

2,350

2,140 

2,120 

2,020 

1,730 

1,690

1,670 

2,640 

3,770 

3,990 

3,130

2,830 

8,460 

18,200 

11,900 

7,530 

5,560

Jan.

4,450 

3,550 

3,300 

3,000 

2,700

2,540 

2,350

2,140 

2,020 

1,970

1,840 

1,730 

1,700 

1,800 

2,100

1,900 

1,850 

2,100 

3,800 

6,590

6,460 

6,990 

6,200 

5,200 

4,200

3,500 

3,000 

2,500 

2,250

2,000 

1,800

Month

Octc 

Move 

Dece

Ca

Jam 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 194 

ary

st ........................

ember .....................

ter year 1949-50 ..........

Feb.

1,700 

1,600 

1,600 

1,620 

1,610

1,540 

1,500 

1,450 

1,500 

1,650

1,900 

2,150 

2,800 

3 , 800 

6.00C

9.60C 

5,OOC 

4,30C 

4.05C 

3.60C

3.40C 

4,OOC 

4.10C 

6,80C 

6.40C

10,700 

7,500 

5,000

Secondfoot-days

74,570 

133,850 

152,870

1,281,990

97,530 

106,870 

148,250 

108,930 

143,540 

216,220 

153,850 

82,700 

55,930

1,475,110

Mar.

4,100 

3,500 

5,400 

18,000 

11,000

8,400 

6,300 

5,300 

4,700 

4,150

3,800 

3,500 

3,300 

3,200 

3,150

3,250

6,300 

5,200 

6,400 

5,000

4,400 

3,880 

3,550 

3,130 

2,830

2,730 

3,130 

2,930 

2,540 

2,640 

2,540

Maximum

7,950 

24,400

18,200

24,400

6,990 

10,700 

18,000 

6,200 

8,380 

9,890 

7,530 

7,630 

5,300

24,400

Apr.

5,130 

4,220 

3,550 

3,130 

3,030

3,030 

2,730 

2,540 

2,540 

2,350

2,350 

5,060 

5,300 

3,990 

4,930

5,940 

6,200 

4,570 

3,990 

4,450

4,450 

3,880 

3,440 

3,030 

2,830

2,540 

2,440 

2,350 

2,350 

2,540

May

2,830 

3,030 

2,830 

2,730

3,030

2,730 

- 2,540 

2,540 

2,830 

3,030

4,340 

6,330 

5,720 

6,460 

5,940

5,430 

5,810 

4,930 

4,450

4,100

5,180 

5,810 

4,810 

4,340 

4,690

5,810 

8,380 

6,590 

5,560 

4,930 

4,810

Minimum

1,050 

1,330 

1,670

810

1,700 

1,450 

2,540 

2,350 

2,540 

4,690 

2 , 730 

1,770 

1,240

1,060

June

5,680 

6,200 

6,720 

7,530 

6,990

5,430 

4,690 

4,930 

4,810 

5,680

5,990 

8,090 

7,530 

7,260 

7,260

9,270 

9,890 

9,890 

9,890 

9,890

8,970 

8,380 

7,810 

6,990 

4,810

5,060 

5,810 

6,720 

8,670 

8,380

Mean

2,405 

4,462 

4,931

3,512

3,145 

3,817 

4,782 

3,631 

4,630 

7,207 

4,963 

2,668 

1,864

4,041

July

7,530 

6,990 

6,990 

7,260

6,990

6,720 

5,940 

5,810 

6,460 

5,430

4,810 

4,450 

4,930 

4,810 

4,340

3,990 

4,220 

4,340

5,050 

4,450

4,340 

4,450 

4,570 

4,450 

4,220

3,880 

3,440 

3,660 

3,650 

2,930 

2,730

Per 

square 

mile

4.15 

7.69 

8.50

B.06

5.42 

6.58 

8.24 

6.26 

7.98 

12.4 

8.56 

4.6O 

3.21

6.97

Aug.

2,730

2,830 

2,440 

2,070 

1,950

2,170 

2,140

1,950 

1,900 

1,830

1,840 

1,840 

1,770 

2,020 

7,630

4,930 

3,440 

2,930 

2,830 

2,830

2,830 

2,730 

4,220 

3,240 

2,640

2,440 

2,440 

2,150 

2,120 

1,980 

1,840

Sept.

1,950 

2,050 

2,100 

1,920 

1,710

1,610 

1,500 

1,450 

1,460 

1,440

1,450 

1,420 

1,400 

1,460 

1,420

1,400 

1,370 

1,330 

1,280 

1,240

1,330 

1,380 

1,340 

2,440 

3,990

5,300 

2,930 

2,540 

2,020 

1,700

Runoff

Inct es

4.78 

8.58 

9.80

82.19

6.25 

6.85 

9.51 

6 .98 

9.20 

13.86 

£ .86 

E .30 

5.59

94.56

Acre-feet

147,900 

265,500 

303,200

2,543,000

193,400 

212,000 

294,000 

216,100 

284,700 

428,900 

305,200 

164,000 

110,900

2,926,000

Peak discharge (base, 13,000 sec .-ft .) . Nov. 27 (7 a.m.) 36,500 sec. -ft.; Dec. 2 (2 a.m.) 23,800

Note. No gage-height record Jan. 3-5, 13-19, Jan. 23 to Feb. 2, Feb. 6 to Mar. 21; discharge 

computed on basis of records for nearby stations.
NOOKSACK RIVER BASIN

Nooksack River near Lynden, Wash.

Location.--Water-stage recorder, lat. 48°55'10", long. 122°29tlO", in Jffi-fNEi sec. 36, T.

 40 W., R. 2 E., ISO feet downstream from bridge on State Highway IB, lj miles upstream 

from Fishtrap Creek, 2 miles southwest of Lynden, and 12 miles upstream from mouth.

Drainage area.--636 square miles.

Records available.--December 1944 to September 1950.

Extremes. Maximum discharge during year, 37,400 second-feet Nov. 27 (gage height, 21.18

 feet); minimum, 1,180 second-feet Oct. 3 (gage height, 6.17 feet), but may have been 

less during period of no gage-height record in September.

1944-50: Maximum discharge, 44,500 second-feet Oct. 26, 1945 (gage height, 21.58 

feet); minimum, probably less than 850 second-feet during period of no gage-height record in February 1949.

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

are poor. No diversion. Slight regulation by power plant at Excelsior.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Nov. 26 Nov. 27 to Sept. 30

6.2 1,210 8.0 2,780 6.3 1,230 8.0 2,700 12.0 8,900 

6.5 1,410 9.0 4,020 6.5 1,370 9.0 3,900 14.0 13,400 

7.0 1,800 10.0 5,520 7.0 1,760 10.0 5,300 16.0 19,100 

7.5 2,260 11.0 7,210 7.5 2,200 11.0 7,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct

1,340 

1,270 

1,210 

1,900 

2,620

2,360 

1,940 

1,640 

2,550 

3,780

3,370 

4,020 

2,670 

2,160 

3,920

3,250 

2,460 

2,020 

1,800 

1,680

1,560 

1,480 

1,440 

1,380 

1,340

1,340 

1,380 

6,740 

4,400 

2,890 

2,360

Nov.

2,020 

1,890 

1,760 

1,640 

1,600

1,520 

1,440 

1,410 

1,600

1,640

1,880 

3,500 

3,500 

6,510 

4,590

3,250 

2,890 

3,010 

2,720 

2,260

1,980 

2,060 

7,140 

4,590 

8,510

10,300 

30,900 

15,800 

9,180 

6,820

Dec.

8,220 

23,800 

9,570 

6,460 

5,150

4,440 

3,640 

3,150 

3,030 

2,650

2,400 

2,250 

2, 110 

2,060 

2,200

2,200 

2,160 

2,160 

1,980 

1,930

1,760 

2,260 

3,510 

4,500 

3,270

2,810 

6,680 

23,600 

18,400 

9,120 

6,120

Jan.

4,720 

4,030 

3,650 

3,300 

d2,850

dZ,600 

2,450 

2,250 

2,110 

2,060

2,020 

1,930 

1,950 

2,100 

2,200

2,050 

2,000 

2,000 

5,000 

7,200

7,000 

7,600 

d7,000 

6,000 

4,800

3,800 

3,100 

2,600 

2,400 

2,200 

1,900

Feb.

1,800 

1,600 

1,600 

1,600 

1,600

1,580 

1,540 

1,520 

1,640 

1,800

d2,100 

2,350 

3,720 

4,300 

8,380

9,970 

5,960 

4,580 

4,580 

4,030

3,510 

4,300 

4,160 

7,290 

6,640

11,900 

8,740 

5,780

Says

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 ......

ary

]

74,270 

47,910 

73,590

1,403,480

h, ........ ......... ...... i

1 ....................... . ^

1

ember ..................

06,870 

18,570 

69,250 

22,050 

47,060 

22,770 

57,560 

86,280 

55,300

ter year 1949-50 .......... 1,581,480

Mar.

4,440 

3,900 

6,460 

20,100 

11,700

10,800 

7,740 

6,120 

5,300 

4,720

4,160 

3,770 

3,510 

3,390 

3,390

3,510 

6,640 

7,180 

7,000 

5,460

4,720 

4,440 

4,030 

3,640 

3,390

3,270 

3,510 

3,390 

3,270 

3,150 

3,150

Maximum

6,740 

30 , 900 

23,800

30,900

7,600 

11,900 

20,100 

7,740 

8,120 

10,800 

7,930 

7,000 

5,300

30,900

Apr.

5,280 

4,860 

4,160 

3,510 

3,270

3,390 

3,150 

3,030 

3,030 

2,920

2,920

4,550 

5,950 

4,580 

4,860

5,950 

7,740 

6,200 

4,700 

5,200

4,700 

4,300 

3,800 

3,500

3,100

2,800 

2,700 

2,650 

2,600 

2,650

May

2,860 

3,150 

3,030 

2,860 

3,150

3,030 

2,810 

2,760 

3,030 

3,150

4,030 

5,950 

7,000 

6,820 

6,120

5,620 

5,620 

5,150 

4,580 

4,160

4,580 

5,950 

5,000 

4,440 

4,580

5,620 

8,120 

7,930 

5,950 

5,150 

4,860

Minimum

1,210 

1,410 

1,760

850

1,900 

1,520 

3,150 

2,600 

2,760 

4,720 

3,030 

1,950 

1,260

1,210

Peak discharge (base, 15,000 sec. -ft. ) .--Nov. 27 (3:30 D.m.)

June

5,

6, 

6, 

7, 

7,

5, 

4, 

4, 

4,

5,

7, 

8,

8,

7, 

7,

9,

10, 

10, 

10, 

10,

9,

8, 

8,

s,

5,

5, 

5,

7, 

8, 

8,

Mean

2,396 

4,930 

5,600

3,845

3,447 

4,235 

5,460 

4,068 

4,744 

7,426 

5,083 

2,783 

1,843

4,333

300 

290 

820 

930 

740

950 

860 

860 

720 

300

000 

500 

310 

550 

000

100 

800 

300 

600 

600

710 

120 

500 

460 

150

150 

950 

000 

500 

700

July

7, 

7, 

6, 

7, 

7,

7, 

6, 

5, 

6, 

5,

4, 

4, 

4, 

4, 

4,

4, 

4,

4, 

5, 

4,

4, 

4, 

4, 

4, 

4,

4, 

3, 

3, 

4, 

3, 

3,

Per

square 

mile

3.77 

7.75 

8.81

6.05

5.42

6.66 

8.58 

6.40 

7.46 

11.7 

7.99 

4.38 

2.90

6.81

930 

180 

820 

180 

000

000 

120 

300 

460 

460

720 

160 

580 

860 

440

030 

160 

440 

000 

720

440 

720 

720 

860 

580

300 

900 

900 

160 

390 

030

Aug.

3,030 

3,270 

2,920 

2,500 

2,350

2,450 

2,600 

2,400 

2,250 

2,200

2,200 

2,200 

2,160 

2,250 

7,000

5,210 

3,390 

2,810 

2,650 

2,650

2,650 

2,550 

3,640 

3,390 

2,700

2,400 

2,350 

2,160 

2,020 

1,980 

1,950

Sept.

1,950 

1,980 

2,020 

1,980 

1,800

1,700 

1,600 

1,520 

1,500 

1,500

1,490 

1,470 

1,460 

1,490 

1,500

1,450 

1,400 

1,380 

1,330 

1,300

1,300 

1,300 

1,260 

1,720 

2,920

5,300 

3,390 

2,550

2,060 

1,680

Runoff

Inches

4.34 

8.65

10.15

82.06

6.25 

6.93 

9.90 

7.14 

8.60 

13.03 

9.21 

5.05 

3.23

92,48

37,400 sec.-ft.j Dec. 2 (9

Acre-feet

147,300 

293,400 

344,300

2,784,000

212,000 

235,200 

335,700 

242,100 

291,700 

441,900 

312,500 

171,100 

109,700

3,137,000

:30 a.m.)

30,600 sec,-ft7; Dec. 28 (8 a.m.; 27,500 sec.-ft. ; Feb. 26 (3:30 p.m.) 15,000 see.-ft.i Mar. 4 

(7 a.m.) 25,700 sec.-ft.

d Doubtful gage-height record} discharge computed on basis of records for nearby stations.

Note.--Ho gage-height record Jan. 3, 4, 13-22, Jan. 24 to Feb. 10, Apr. 18-26, Aug. 31, Sept. 1, 

5-21; discharge computed on basis of records for nearby stations.
NOOKSACK RIVER BASIN 187

Kendall Creek at Kendall, Wash.

Location.--Water-stage -recorder, lat. 43°55'05", long. 12£ 0 08'35", in NW£ sec. 34, T. 40

N., R. 5 E., at Kendall, lj miles upstream from mouth. 

Drainage area.--18.2 square miles.

Records available.--July 1948 to October 1950 (discontinued). 

Extremes.--Maximum discharge during period October 1949 to October 1950, 162 second-feet

Dec. 29 (gage height, 2.70 feet); no flow Oct. 1 to Nov. 26, 1949.

1948-50: Maximum discharge, that of Dec. 29, 1949; no flow Sept. 10-16, Sept. 18 to

Nov. 26, 1949. 

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

those for periods of no gage-height record, which are poor. No known diversion or

regulation.

Discharge in second-feet, 1949-50 

1949-50

Day

1

2

3

4

5

6

Y

8

9

10

11

12

13

14

15

16

1Y

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0

0

o

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

1.2

z.o

2.6

-

Dec.

3.4

5.0

6.9

7.2

6.5

5.3

4.7

4.0

3.8

3.1

2.8

2.6

2.3

2.2

2.3

2.0

2.0

1.8

5.0

9.7

9.2

8.8

11.5

13

IS

18.5

35

146

150

110

82

Jan.

66

55

48

44

41

40

37

33

31

30

29

28

27

26

25

24

23

22

21

25

30

35

35

32

30

28

27

26

25

24

24

Feb.

24

24

24

24

24

24

24

26

26

27

28

30

35

42

5C

60

6£

64

S3

59

59

SO

64

75

85

90

99

95

_

_

-

Mar.

86

78

85

137

156

146

135

124

110

99

90

81

76

72

70

68

70

81

97

104

108

104

97

92

86

83

86

85

85

85

83

Apr.

88

95

99

99

95

92

88

85

81

78

75

76

78

80

86

92

95

99

97

95

90

88

88

85

81

80

74

70

65

64

-

May

64

66

66

66

66

63

62

60

59

59

58

56

56

55

56

56

56

55

55

54

54

54

53

51

51

53

53

51

51

50

49

June

48

43

47

47

46

47

46

44

43

42

42

42

41

41

40

39

39

38

38

37

36

37

36

35

35

34

34

32

31

30

-

July

28

28

28

28

28

27

27

27

27

26

25

25

24

24

24

24

23

22

22

21

20

20

20

20

19

19

19

19

18.5

18.5

18

Aug.

18

18

15.5

16.5

16.5

16.5

16.5

16

16.5

16

15.5

14.5

14.5

16

17

15.5

14.5

14

13.5

13.5

13

12.5

12.5

11.5

11

11

11

10.5

10.5

9.9

9.9

Sept.

9.4

9.4

8.9

8.4

8.4

8.4

8.0

8.0

8.9

8.9

8.4

8.4

8.4

8.4

7.6

7.6

7.S

7.6

7.2

C.9

6.9

6.6

S.2

6.9

6.9

6.9

6.2

5.9

5.6

5.0

-

Peak discharge (base, 100 sec.-ft.). D sec.-ft; 

May

19 (6 a.m.) 162 sec.-ft.; Mar. 5 (4 to 9 a.m.) 161 

sc.-ft.

Note. No gage-height record Jan. 9 to Feb. 1, Apr. 28 to May 2: discharge computel on basis of 

icords for nearby streams. Shifting-control method used Dec. 27 to Jan. 8, Mar. 5 to Apr. 22, 

ly 15 to July 19, Aug. 22 to Sept. 20. 1950

Day

Oct. 1

2

3

4

5

&

7

8

Discharge

5.0

4.8

4.5

4.8

5.0

4.8

4.8

5.0

Day

Oct. 9

10

11

12

13

14

15

16

Discharge

4.8

6.9

5.9

5.9

5.6

5.3

5.0

4.8

Day

Oct. 17

18

19

20

21

22

23

24

Dlscnarge

4.8

S.6

8.4

9.4

10.5

11

11

9.9

Day

Oct . 25

26

27

28

29

30

31

Discharge

a9

a8.2

a7 .6

a7.6

a8

a9

alO

a No gage-height record; discharge computed on basis of records for nearb i 

streams.

Monthly discharge. In second-feet, 1949-50

Month

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

May. ..........................

July. .........................

October 1950 .................

Secondfoot-daya

0 

6-.0 

682.6

6,916.3

991 

1,371 

2,959 

2., 559 

1,758 

1,195 

719 

438.8 

227.9

12,907.3

213.9

Maximum

0 

2.6 

150

150

r is

99 

156 

99 

66 

48 

28 

18 

9.4

156

11

Minimum

0 

0 

1.8

0

21 

24 

68 

64 

49 

30 

18 

9.9 

5.0

0

4.5

Mean

0 

.20 

22.0

18.9

32.0 

49.0 

95.5 

85.3 

56.7 

39.8 

23.2 

14. Z 

7.60

35.4

6.90

Per 

square 

mile

0 

.011 

1.21

1.04

1,76 

2,69 

5.25 

4.69 

3.12 

2.19 

1.27 

.780 

.418

1.95

.379

Runoff

Inches

0

.01

1.39

14,12

2,03 

2,80 

6,05 

5,23 

3,59 

2.44 

1.47 

.90 

.47

26.36

.44

Acre-feet

0 

12 

1,350

13,710

1,970 

2,720 

5,870 

5,080 

3,490 

2,370 

1,430 

870 

452

25,610

424
188 NOOKSACK RIVER BASIN

Canyon Creek at Kulshan, Wash.

Location.--Water-stage recorder, lat. 48°50'05", long. 122°08'05", in SE^SE^ sec. 27, T. 

aa n., R. 5 E., at Kulshan, a quarter of a mile upstream from mouth.

Drainage area. 8.fa square miles.

Records available.--July 1948 to September 1950.

Extremes. Maximum discharge during year, 1,660 second-feet Nov. 27 (gage height, 4.78 

reet), from rating curve extended above 160 second-feet; minimum, 6 seoond-feet Sept. 

22

1948-50: Maximum discharge, that of Nov. 27, 1949; minimum, 5.4 second-feet Sept. 

12-14, 1949 (gage height, 0.59 foot).

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

No diversion or regulation.

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet)

(Shifting-control method used Dec. 2-18, 22-29, Jan. 6-11, £2, 23, 

Feb. 3 to Mar. 6, June 24 to Sept. 12)

Oct. 1 to Dec. 1

1.0 

1.2

1.4 

1.6 

1.9 

2.2

124

190

271

370

541

1.6 

1.8 

2.0

Dec. 2 to Sept. 30

5.4

10

17

29

2.5 57

2.8 110

3.1 195

3.5 400

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10.5 

9.9

9.6 

27 

37

34 

28 

23 

55 

53

50

46 

33 

27

76

48 

34 

28 

24 

22

20 

18 

17 

15 

14

14 

19 

117 

53 

36 

28

Nov.

24 

21 

18.5 

17 

15.5

14.5 

14 

14 

15 

14

19 

38 

52 

98

61

42 

34 

30 

27 

23

21

40 

39 

103

186 

559 

438

195 

164

Dec.

440 

325 

100

60 

46

36 

30 

26 

23 

20

17.5 

16 

15 

14.5 

19

17.5 

16.5 

15.5 

14 

13

20 

31 

61 

43 

31

26 

204 

568 

241

100

60

Jan.

45 

35 

30 

27 

28

28

26 

23 

22 

21

20 

19 

18 

17 

17

18 

20 

25 

50 

100

130 

132 

67 

50 

40

35 

31 

28 

25 

22 

20

Feb.

19 

18 

18 

21 

15.5

18 

14.5 

16 

14 

13.5

13 

15.5 

40 

50 

112

106 

63 

49 

49 

42

39 

54 

57

134 

106

175 

106 

o4

f^Tdts

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary 1

1 ......................... l

ember .....................

,026.0 

,362.5 

,649.5

,961.1

,169 

,442 

,374

J517 

,485 

,586 

649.5 

415.9

ter year 1949-50 . . ....... 21,345.4

Peak discharge (base, 300 sec. -ft.). Nov.

sec. -ft. j Dec. 28 (8:30 a.m.) 850 sec. -ft.; 

Mote. No gage-height record Dec. 19-21, E 

15-24; discharge computed on basis of recorc 

nearby streams.

Mar.

50 

46 

336 

345 

199

142 

80

64 

54 

46

40 

36 

34 

33 

32

50 

122 

108 

91

67

54 

47 

42 

37

34

32 

34 

31 

28 

29 

31

Maximum

117 

559 

568

568

132 

175 

345 

112 

192 

178 

100 

91 

56

568

Apr.

53 

43 

39 

38

39

36 

35 

32 

30

31 

85 

97 

67 

93

112 

112

76 

64 

68

73 

64

54

43

39 

35 

34

33 

35

May

40 

44 

43 

42 

47

44 

42 

41 

42 

44

64 

132 

142 

117 

100

89 

108 

85 

78

71

89 

110 

85

70 

73

106 

192 

129 

95 

78 

75

June

91 

112 

139

164 

129

84 

73 

78

76 

76

139 

150 

122 

104 

104

168 

178 

158 

161

161

124 

120 

120 

80

64

67 

84 

112 

132 

115

Minimum Mean

9.6 33.1 

14 78.8 

13 85.5

5.6 51.9

17 37.7 

13 51.5 

28 76.6 

30 55.6 

40 81.2 

64 116 

21 51.2 

10.5 21.0 

6 13.9

6 58.5

July

100 

87 

91 

89 

85

78

63 

71 

55

46 

45 

54 

49

43

40 

41 

42 

54 

45

42 

41 

37 

35 

31

27 

24 

30 

32 

24 

21

Per 

square 

mile

3.89 

9.27

10.1

6.11

4.44 

6.06 

9.01 

6.54 

9.55 

13.6 

6.02 

2.47 

1.64

6.88

27 [12:30 a.m.) 1,660 sec. -ft.; Dec. 

Mar. 3 (8:30 p.m.) 1,090 sec. -ft. 

ec. 30 to Jan. 5, Jan. 12-21, Jan. 24 

ed range in stage, weather records, a

Aug.

19.5 

18.5

16 

14.5 

13.5

14.5 

14.5 

13 

12.5 

11.5

11 

10.5 

10.5 

13.5 

91

50 

31 

23 

19.5 

16.5

15 

14 

42

36 

26

20 

17.5 

15.5 

14 

13 

12

Sept.

12 

11 

10.5 

10.5 

9.5

9.2 

9.0 

8.5 

8.2 

8.0

7.8 

7.5 

7.5 

7.5 

7 5

7 

7

6.5 

6.5 

6.5

6.2 

6 

6.5 

15 

54

56 

35 

28 

23 

18.5

Runoff

Inches

4.49 

10.34 

11.59

82.96

5.11 

6.31 

10.39 

7.30 

11.01 

15.25 

6.94 

2.84 

1.82

93.39

Acre-feet

2,040 

4,690 

5,260

37,610

2,320 

2,860 

4,710 

3,310 

4,990 

6,910 

3,150 

1,290 

825

42,360

1 (8 p.m.) 1,350

to Feb. 2, Sept. 

rd records for
NOOKSACK RIVER BASIN 189

South Fork Hooksack River near Wickersham, Wash.

Drainage area.--103 square miles.

Records available.--October 1933 to September 1950.

Average discharge.--17 years, 715 second-feet.

Extremes.--Maximum discharge during year, 15,800 second-feet Nov. 27 (gage height, 12.01 

Feet) ; minimum, 130 second-feet Sept. 22, 23 (gage height, 2.23 feet).

1933-50: Maximum discharge, that of Nov. 27, 1949; minimum, 66 second-fe°t Oct. 9, 

1940, Sept. 11-13, 1944.

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

to diversion or regulation.

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

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Mar. 5 to Apr. 16)

2.2 123 3.6 700 6.0 3,390 

2.4 169 4.0 1,000 6.5 4,160 

2.6 223 4.5 1,480 7.5 5,880 

2.9 320 5.0 2,050 8.5 7,830 

3.2 455 5.5 2,680

Discharge, in seoond-feet, water year October 1949 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

Oct.

220 

E12 

203 

796 

791

674 

477 

387 

1,280 

1,050

1,760 

1,040

668 

516 

1,150

674 

522 

440 

374 

344

320 

299 

285

272 

263

263 

420 

2,420 

819 

546 

450

Nov.

382 

348 

320 

299 

279

269 

256 

275 

396 

364

847 

1,280 

1,650 

1,960 

1,050

763 

661 

635 

534 

455

405 

1,210 

1,840 

1,190 

2,360

4,230 

7,450 

2,680 

1,700 

1,430

Dec.

4,920 

5,040 

1,870 

1,330 

1,110

920 

742 

642 

602 

522

466 

440 

405 

387 

440

430 

430 

405 

360 

348

328 

534 

970 

896 

622

570 

2,130 

5,880 

2,960 

1,480 

1,040

Jan.

805 

661 

580 

530 

490

450 

420 

400 

400 

332

320 

313 

316 

332 

396

499 

583 

756 

960 

1,700

1,680 

1,800 

1,500 

1,200 

1,000

820 

660 

520 

450 

400 

360

Feb.

330 

300 

300 

300 

300

290 

280 

270 

300 

340

400 

500 

1,380 

1,24C 

3,10C

2,16C 

1,280 

1,04C 

1.13C 

872

79B 

1,010 

1,040 

1,870 

1,700

2,890 

1 , 590 

1,070

 ,.. SeoondMonth foot-days

Ootc 

Nove 

Dece

Ca

Janu 

Febi 

Hare 

Apn 

Hay 

June 

Julj 

Augi 

Sept

We

lendar year 194C i

ember .....................

19,935 

37,518 

39,219

07,824

21,633 

28,080 

33,883 

26,791 

36,357 

47,280 

25,801 

11,642 

8,652

ter year 1949-50 .......... 336,791

Mar.

880 

856 

3,760 

3,640 

2,170

1,760 

1,280 

1,080 

936

791

674 

583 

534 

499 

522

919

1,810 

1,380 

1,380 

1,010

904 

904 

777 

648 

596

564 

680 

628 

552 

570 

596

Maximum

2,420 

7,450 

5,880

7,450

1,800 

3,100 

3,760 

1,700 

2,360 

2,230 

1,480 

1,890 

1,720

7,450

Apr.

1,540 

1,050 

805

668 

680

707 

602 

576 

590 

540

576 

1,380 

1,220 

912 

1,420

1,590 

1,700 

1,130 

1,000 

1,140

1,070 

904 

770 

674

628

570 

564 

534 

590

661

May

777 

856 

770 

756 

826

714 

668 

756 

856 

920

1,270 

1,760 

1,760 

1,640 

1,430

1,330 

1,330 

1,090 

1,040

928

1,170 

1,280 

1,070 

1,010 

1,220

1,480 

2,360 

1,590 

1,330 

1,170 

1,200

Minimum

203 

256 

328

136

313 

270 

499 

534 

668 

920 

425 

217 

132

132

June

1,430 

1,480 

1,760 

1,930 

1,590

1,160 

1,020 

1,060 

1,040 

1,330

1,760 

1,870 

1,640 

1,480 

1,540

2,110 

2,170 

2,050 

2,230 

2,050

1,700 

1,700 

1,640 

1,210 

920

1,140 

1,330 

1,540 

1,760 

1,640

Mean

643 

1,251 

1,265

843

698 

1,003 

1,093 

893 

1,173 

1,576 

832 

376 

288

923

Peak discharge (base, 4,800 sec. -ft .) . --Nov. 27 (2:30 a.m.) 15,800 sec

1950

July

,480 

,280 

,330 

,330 

,280

1,160 

968 

1,030 

1,160 

840

721 

714

848 

 763 

687

616 

674 

707 

833 

654

674 

700 

680 

642 

590

528 

482 

661 

840 

504 

425

Per 

square 

mile

6.24 

12.1

12.3

8.18

6.78 

9.74 

10.6 

8.67 

11.4 

15.3 

8.08 

3.65 

2.80

8.96

Aug.

415 

405 

364 

320 

310

352 

344 

306 

302

285

285 

282 

269 

336

1,890

642 

410 

344 

313 

299

282 

272 

269 

477 

348

299 

279 

256 

244

226

217

Sept

206 

203 

201

195 

190

179

174 

169 

164 

162

159 

155 

152 

150 

150

145 

143

141 

138

136

136 

132 

132 

294 

879

1,720 

694 

628 

405 

320

Runoff

Inches

7.20 

12.55

14.16

111.14

7.81 

10.14 

12.23 

3. 67 

13.13 

17.07 

9.32 

4.20 

3.12

121.60

Acre-feet

39,540 

74,420 

77,790

610,600

42,910 

55,700 

67,210 

53,140 

72,110 

93,780 

51,180 

23,090 

17,160

668,000

-ft.; Dec. ] (11 p.m.)

12,700 sec.-ft.; Dec. 28 (11 a.m.) 7,430 see.-ft.; Mar. 3 (9 p.m.) 8,460 sec.-ft.

Note. No gage-height record Jan. 3-9, Jan. 20 to Feb. 12; discharge computed on bssls of records 

for nearby stations.
190 NOOK3ACK RIVER BASIN

Skookum Creek near Wickersham, Wash.

Location. Water-stage recorder, lat. 48°40'20", long. 122°08'3C", in HE£ sec. 27, T. 37

 W., H. 5 E., 500 feet upstream from mouth and 3| miles east of Wickersham.

Drainage area. 22.8 square miles,

Kecoras available. July 1948 to September 1950.

Extremes. Maximum discharge during year not determined, pnobably occurred Dec. 1 nr 2

 during period of no gase-height record; minimum, 17.5 second-feet Sept. 23 (gage height,

1,74 feet).

1948-50: Maximum discharge, that of Dec. 1 or 2, 1349; minimum, fiat of Sept. 23,

1950. 

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

wo diversion or regulation. 

Revisions. Revised figures of discharge, in second-feet, for period in water year 1943,

 superseding those published in Water-Supply Paper 1152, are given herewith:

Sept. 21. 

23!

Month

Water year 1948 49. ..........

foot-days

2,400

47,376

Maximum

390

519

Minimum

33

19

Mean

80.0

131

Per

square 

mile

 3.51

5.75

Ru

Inches

3.91

78.08

Jioff

Acre-feet

4,780

94 , 940

Discharge, in second feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

32

31

30

105

102

88

69

60

197

140

- 230

134

93

77

208

102

80

67

60

53

48

46

42

40

38

40

61

212

91

70

58

Nov.

51

47

43

40

37

36

33

45

70

60

172

179

255

250

*133

99

87

83

73

64

57

260

200

129

328

883

1,260

582

385

310

-

Dec.

1,210

1,020

277

200

168

138

120

102

94

81

73

72

67

67

72

65

67

60

49

51

50

105

160

127

96

88

440

1,020

495

 »288

198

Jan.

158

140

120

105

95

90

85

80

72

*65

61

56

52

54

65

80

100

130

170

220

b200

b240

blSO

140

110

90

80

74

70

66

64

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

62

62

64

67

72

ei

67

*76

67

64

63

80

214

212

750

400

225

189

203

162

144

174

181

364

364

582

299

212

_

-

-

Secondfoot-days

2,704

6 , 251

7,120

52,569

3,312

5,500

6,833

4,490

5,867

8,284

4,009

2,045

1,279.5

57,694.5

Mar.

168

158

800

900

550

400

300

230

180

130

115

105

95

92

90

150

400

350

270

210

170

131

118

105

97

90

93

93

84

81

78

Maximum

230

1,260

1,210

1 , 260

240

750

900

349

478

400

218

294

235

1,260

Apr.

238

168

138

118

109

114

109

99

91

87

88

260

£18

160

192

349

304

200

164

179

185

156

134

116

104

93

85

78

76

78

-

May

94

112

112

104

105

104

96

91

96

111

203

343

310

266

221

203

198

170

162

152

223

216

164

158

214

285

478

263

214

192

207

Minimum

30

33

49

19

52

62

78

76

91

168

80

33

17.5

17.5

June

263

296

352

358

260

187

174

135

194

258

343

331

279

248

285

400

385

361

385

352

274

310

245

185

168

196

221

260

279

250

-

Mean

87.2

208

230

144

107

196

220

150

189

276

129

66.0

42.6

158

July

218

198

198

198

187

170

138

154

168

129

112

111

125

111

101

90

97

101

160

112

107

111

107

101

93

85

80

121

150

96

80

Per 

square 

mile

3.82

9.12

10.1

6. 32

4.69

8.60

9.65

6.58

8.29

12.1

5.66

2.89

1.87

6.93

Aug.

78

76

65

55

53

6?

55

50

47

46

46

45

43

62

294

97

69

57

53

51

49

51

152

76

60

52

48

44

40

36

33

Sept.

30

30

29

28

26

24

24

22

22

£2

21

20

20

20

20

19.5

19

18.5

18.5

18.5

18

18

17.5

50

179

235

99

96

65

50

-

Runoff

Inches

4.41

10.20

11.61

85.74

5.40

8.97

11.15

7.32

9.57

13.51

6.54

3.34

2.09

94.11

Acre-feet

5,360

12,400

14,120

104,200

6,570

10,910

13,550

8,910

11,640

16,430

7,950

4,060

2,540

114,400

Peak discharge (base. 700 see.-ft.) . Nov. 22 (6:30 p.m.) 932 sec.-ft.; Nov. 25 (7:30 a.m.) 850 

sec.-ft.; Nov. 26 or Z7 (time and discharge unknown); Dec. 1 or 2 (time and discharge unknown); 

Dec. 28 (11 a.m.) 1,230 sec.-ft.; Feb. 15 (4:30 p.m.) 978 sec.-ft.; Feb. 26 (6:30 a.m.) 870 sec.- 

ft..; Mar. 3 or 4 (time and discharge unknown); May 27 (7:30 a.m.) 710 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--Ho gage-height record Jan. 2-9, 13-20, Jan. 24 to Feb. 3, Mar. 3-21; discharge computed 

on Dasis of weather reconds and records for nearby streams.
NOOKSACK RIVER BASIN 191

Flshtrap Creek at Lynden, Wash.

Location. Water-stage recorder, lat . 48°57'50", long. 122°26'00", on north line sec 16 

TTW N., R. 3 E., at highway crossing 1 mile north of Lynden.

Records available. July 1948 to September 1950.

Extremes. --Maximum discharge during year, 342 second-feet Dec. 28 (gage height 5 40 f"t 

rronrre corded range In stage); minimum, 2.6 second-feet Oct. 3; minimum ge'ge height, 

-L.U3 r set Oct. 1 3.

m 1 ?^n59 : Maximuln discharge, that of Dec. 28, 1949; minimum, 0.4 secord-foot Sept. 

10, 1949 (gage height, 1.00 foot).

Remarks. Records good except those for periods of no gage-height record or shifting control, which are fair. No regulation. Probably some small diversions for domestic use 

Large high-water diversion through sloughs.

Rating table, water year 1949-50, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet)

1.0

1.2 

1.4

1.7

2.2

7.1

13.0

26

2.0 

2.5 

3.0 

3.5

4.0 

4.5 

5.0

5.5

164

217

282

358

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

Ib 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.0 

3.0 

2.8 

6.1 

7.9

7.4 

6.6 

5.5 

6.6 

7.1

5.8 

5.0 

5.3 

4.5

6.6

6.6 

5.3 

4.8 

4.5 

4.2

4.0 

4.0 

4.0 

3.8 

3.8

4.0

5.3 

14 

9.9 

7.4 

5.8

Nov.

5.0

4.8 

5.0 

5.0 

5.0

4.5 

4.5 

5.5 

7.6 

9.3

11.5 

16.5 

16.5 

18.5 

16.5

13 

11 

11.5 

13 

11.5

10 

10 

14.5 

19 

33

47 

99 

85 

64 

56

Dec.

64 

115 

102 

70 

56

46 

42 

37 

36 

34

30 

28 

26 

26 

31

34 

36 

38 

32 

30

25 

42 

75 

112 

87

67 

167 

300 

250 

150 

99

Jan.

80 

65 

55 

48 

43

43 

48 

45 

42 

39

40 

43 

35 

25 

25

25 

26 

27 

29 

35

45

80 

75 

50 

40

36 

34 

32 

31 

30 

30

Feb.

30

32 

37 

45 

60

65 

75 

80 

82 

87

99 

122 

200 

212 

235

282 

200 

138 

130 

118

126 

169 

164 

174 

184

212 

160 

115

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lenaar year 1949

1..... ..................................

ter year 1949-50 .......................

Mar.

93 

93 

142 

217 

217

223 

160 

118 

112 

96

82 

75 

70 

70 

75

85 

134 

160 

212 

160

130

122 

108 

96 

87

82 

102 

96 

82 

80 

80

Apr.

150 

146 

112 

90 

80

72 

70 

62 

57 

55

57 

96 

115 

96 

102

130 

134 

102 

82 

72

64 

72 

87 

75 

70

64 

64 

62 

56 

52

Secondfoot -days

174.6 

633.2 

2,287

9,515.7

1,301 

3,633 

3,659 

2,546 

1,320 

535.5 

293.1 

227.5 

201.5

16,811.4

May

52 

56 

55 

50 

60

61 

53 

48 

45 

43

42 

40

37 

36 

34

34 

42 

48 

50 

46

50 

48 

41 

37 

34

32 

32 

29 

30 

28 

27

Maximum

14 

99 

300

300

80 

282 

223 

150 

61 

26 

12 

13.5 

9.6

300

June

26 

24 

23 

22 

21

21 

21 

20 

19.5 

18.5

17.5 

16.5 

16.5 

16.5 

16.5

16.5 

16 

15.5 

14.5 

14.5

14.5 

16.5 

21 

19.5 

17.5

16 

14.5 

14 

13 

12.5

July

12 

12 

11.5 

11.5 

11

10 

10 

10 

12 

11

10.5

9.9 

9.6 

9.6 

9.3

9.3 

9.0 

8.8 

9.3 

9.0

8.5 

8.2 

.9 

.6 

.4

.4 

.4

9.0 

8.8 

8.2 

7.4

Minimum

2.8 

4.5 

25

.8

25 

30 

70 

52 

27 

12.5 

7.4 

5.5 

5.8

2.8

Aug.

6.6 

6.1 

6.1 

6.3 

6.3

7.1 

7.4 

6.8 

6.3 

6.1

5.8 

5.5 

5.5 

6.1 

13.5

11.5 

8.8 

7.6 

7.4 

6.6

6.8 

6.8 

11 

10 

8.5

7.1 

6.8 

6.6 

6.8 

7.1 

6.6

Mean

E.63 

21.1 

73.8

26.1

42.0 

130 

118 

84.9 

42.6 

17.8 

9.45 

7.34 

6.72

46.1

Sept.

6.1 

6.6 

6.3 

6.1 

5.8

6.1 

6.3 

6.6 

6.3 

6.1

6.6 

6,3 

6.2 

6.2 

6.2

6.1 

6.1 

6.1 

6.0 

6.0

6.3 

6.1 

6.3 

7.9 

9.3

9.6 

8.5 

7.9 

7.9 

7.6

Runoff In 

acre -feet

346

1,260 

4,540

18,880

2,580 

7,210 

7,260 

5,050 

2,620 

1,060 

581 

451 

400

33,360

Peak discharge (base, 150 sec.-ft.) --Dec. 28 (time unknown) 342 sec.-ft.; Feb. 16 (2 to 3 a.m. 

296 sec.-ft.; Feb. 26 (12:30 p.m. ) 229 sec.-ft.j Mar. 4 (9 to 10 a.m.) 241 sec.-ft.; Mar. 6 (7 t 

8 a.m.) 241 see.-ft.,- Mar. 19 (2:30 a.m.) 229 sec.-ft.; Apr. 1 (2:30 a.m.) 160 sec.-ft.; Apr. 2 

(6 to 7 a.m.) 160 sec.-ft.

Note.--No gage-height record Dec. 28, 29, Jan. 2-4, Jan. 13 to Feb. 7, Sept. 13-20; discharge 

computed on basis of 2 discharge measurements, weather records, and records for nearby streams. 

Shifting-control method used Oct. 3 to Nov. 26, Aug. 2 to Sept. 12.
192 DAKOTA CREEK BASIN 

Dakota Creek near Blaine, Wash.

Location. Water-stage recorder, lat. 48°57 I 25", long 122°39'30", in HW-J-SW^ sec. 14, T. 

4U M;, R. IE., 85- miles upstream from mouth and 4f miles southeast of Blaine.

Records available.--July 1948 to September 1950.

Extremes. Maximum discharge during year, 826 second-feet Dec. 27 (gage height, 9.16 feet; 

minimum, 0.1 second-foot Aug. 11; minimum daily, 1.6 second-feet Sept. 21, 22.

1948-50: Maximum discharge, that of Dec. 27, 1949; minimum, that of Aug. 11, 1950; 

minimum daily, 0.7 second-foot Aug. 1, 1949.

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

tnose for periods of no gage-height record, which are poor. Probably some small diversions for domestic use. Some diurnal fluctuation at low flow from unknown cause.

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

2.4 

2.6 

2.7 

3.9 

4.9

4.6 

4.2 

3.3 

3.5 

4.6

2.7 

2.7 

2.6 

2.6 

3.9

3.5 

3.5 

3.1 

2.7 

2.4

2.4 

2.4 

2.4 

d2.2 

2.1

1.9 

3.5

6.5 

4.6 

d3.5 

2.6

Nov.

3.1 

d2.9 

2.9 

2.9 

2.9

2.7 

2.7 

3.3 

3.7 

3.5

3.9

5.2 

5.9 

7.2 

6.5

5.2 

4.9 

5.2 

5.6 

4.4

3.7 

3.7 

6.2 

8.8 

55

83 

215 

70 

69 

57

Dec.

155 

307 

100 

90 

58

41 

26 

22 

26 

18.5

15.5 

13.5 

14 

14.5 

30

30 

60 

86 

90 

82

92 

141 

251 

241 

128

86 

526 

693 

292 

116 

76

Jan.

50 

35 

27 

f22 

25

29 

32 

32 

27 

24

30 

23 

20 

18 

22

25 

28 

27 

33 

360

380 

200 

100 

70 

65

57 

56 

56 

49 

50 

60

Feb.

f54 

50 

50 

54 

80

123 

169 

210 

160 

152

169 

223 

519 

228 

240

220 

108 

77 

86 

70

135 

298 

144 

210 

242

325 

144 

100

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949 

ary

h. ......................................

ter year 1949-50 .......................

Peak discharge (base, 490 sec. -ft.) .--Dec.

sec. -ft.; Feb. 25 (12 p.m.) 498 sec. -ft. ; Ma 

d Doubtful gage-height record; discharge c 

f Computed on basis of partly estimated ga 

Note. No gage-height record Dec. 19-21, J 

basis of records for nearby streams. Shift! 

Sept. 20.

Mar.

70 

83 

244 

295 

368

328 

156 

104 

108 

83

60 

49 

46 

46 

55

80 

303 

300 

345 

132

120 

128 

94 

76 

63

51 

97 

73 

48 

47 

44

Apr.

192 

128 

77 

52 

40

38 

32 

28 

25 

24

26 

100 

80 

49 

72

120 

108 

55 

40 

34

26 

42 

67 

58 

40

30 

33 

27 

24 

22

Secondfoot-days

100.5 

656.0 

3,921

8,884.7

2,032 

4,640 

4,096 

1,689 

550.5 

176.0 

100.7 

104.7 

68.5

18,134.9

May

22 

24 

22 

20 

30

26 

22 

20 

17.5 

17.5

15.5 

14.5 

13 

12 

11.5

11 

14 

21 

26 

25

28 

24 

18.5 

15 

13

12 

12 

11 

12 

10.5 

10

Maximum

6.5 

215 

693

693

380 

519 

368 

192 

30 

9.6 

6.2 

6.8 

3.1

6.93

June

9.6 

8.8 

8.4 

8.1 

7.2

6.8 

7.4 

6.8 

6.8 

6.2

5.9 

5.9 

5.6 

5.6 

5.2

4.9 

4.9 

4.6 

4.9 

3.9

3.7 

5.6 

7.2 

5.6 

5.2

4.9 

4.2 

4.4 

4.2 

3.5

July

2.9 

2.7 

3.9 

4.4

3.1

3.1 

3.3 

4.4 

6.2 

5.2

4.9 

3.7 

3.3 

3.3 

3.3

d3 

d2.8 

d2.8 

2.7 

2.2

2.2 

2.2

2.2 

2.4 

2.3

2.4 

2.4 

3.9

3.7 

2.9 

2.9

Aug.

2.7 

2.6 

2.6 

2.6 

2.6

2.3 

3.3

3.1 

2.7 

3.1

2.7 

2.7 

2.6 

2.9 

6.8

4.9 

3.3 

3.3 

3.1

2.9

3.1 

3.3

6.2 

4.6 

3.7

3.5 

3.5 

3.1 

3.7 

3.3 

2.9

Minimum Mean

1.9 3.24 

2.7 21.9 

13.5 126

.7 24.3

18 65.5 

50 166 

44 132 

22 56.3 

10 17.8 

3.5 5.87 

2.2 3.25 

2.6 3.38 

1.6 2.28

1.6 49.7

Sept.

2.9 

2.4 

2.7 

2.6

2.6

2.4

2.6 

2.4 

2.2 

2.4

2.4 

2.1 

1.9 

1.9 

2.1

1.9

1.9 

2.1 

1.8

1.7

1.6 

1.6 

2.1 

3.1 

3.1

2.9

2.4 

2.4 

2.2 

2.1

ac^-rU?

199 

1,30O 

7,780

17,630

4,030 

9,200 

8,120 

3,350 

1,090 

349 

200 

208 

136

35,960

27 (3:30 p.m.) 826 sec. -ft. j Feb. 13 (4:30 a.m. 

r. 5 (4 p.m.) 498 sec. -ft. j Mar. 19 (l a.m.) 526 

omputed on basis of records for nearbj- streams, 

ge-height record, 

an. 2, 3, 5, 6, 12-31, Feb. 2-5; disctarge compu 

ng-control method used Oct. 1-19, Feb. 12-26, Ma]

) 582

sec. -ft

bed on 

-. 25 to
PHASER RIVER BASIN 193

Sumas River near Sumas, Wash.

Location. Water-stage recorder, lat. 48°58'40", long. 122°15'00", in NE^ sec. 11, T. 40

KI., H. 4 E., li miles south of Sumas,

Records available. July 1948 to November 1950 (discontinued). 

Jixtr ernes.--Maximum discharge during period October 1949 to November 1950, 800 second-feet

 Dec. !J8 (gage height, 8.89 feet); minimum, 13.5 second-feet Oct..1-4, 1949 (gage height,

1.89 feet).

1948-50: Maximum discharge, that of Dec. 28, 1949; minimum, 13.5 second-feet Sept.

27-30, Oct. 1-4, 1949. 

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

 those for periods of no gage-height record, which are poor. No regulation. Probably 

some small diversions for domestic uae.

Discharge, In second-feet, 1949-5O 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13.5

13.5

13.5

14

27

36

30

25.

22

24

22

19.5

17.5

17

20

36

29

24

22

20

20

19.5

18.5

18

16.5

15.5

17

28

58

36

28

Nov.

25

22

22

21

20

20

20

19.5

19.5

21

22

26

31

41

49

38

32

29

28

27

25

24

25

26

32

54

87

152

108

108

Dec.

98

228

244

124

94

73

58

47

43

41

36

33

32

32

33

53

46

47

34

31

31

40

86

237

170

108

156

660

585

306

207

Jan.

152

120

95

80

75

73

70

63

56

54

62

58

56

55

54

54

54

58

80

150

250

230

180

150

135

120

120

115

115

115

110

Feb.

110

110

110

110

120

132

200

166

190

140

116

120

225

288

272

288

240

190

185

185

157

215

260

277

300

318

300

225

_

.

-

Mar.

180

152

175

373

312

348

294

235

225

195

162

140

124

112

116

112

225

386

399

312

255

230

205

185

166

148

148

157

136

128

136

Apr.

255

294

235

195

166

148

136

120

108

98

90

112

240

220

185

235

225

185

152

132

124

120

136

124

108

101

94

94

84

79

-

Hay

79

86

84

76

81

104

94

79

72

69

66

69

75

67

58

54

70

108

98

94

86

90

74

60

53

49

50

52

47

42

38

June

37

40

45

44

42

41

40

39

37

36

35

34

33

33

33

34

32

32

32

31

30

30

32

31

30

29

28

27

27

27

-

July

26

26

25

25

24

24

24

24

26

26

25

24

23

22

22

22

22

21

21

21

20

20

20

20

20

19.5

19.5

21

22

22

21

Aug.

20

19.5

19

19

19

19.5

20

19.5

19.5

19

19

19

18.5

19

23

30

23

21

20

20

19

18.5

21

26

22

20

20

19.5

19

18.5

18.5

Sept.

18

18

17.5

17.5

17.5

17

17

17

16.5

16.5

16.5

16

16

16

16

16

16

16

16

16

16

16

16

16.5

18

18.5

18.5

18

18

17.5

-

Peak discharge (base. 4OO sec.-ft.).--Dec. 28 (ll:3O p.m.) 800 sec.-ft.; Bar. 4 (2 p.m.) 425 sec.- 

ft.j Mar. 19 (2:30 p.m.) 425 sec.-ft.

Note.--No gage-height record Jan. 2-4, Jan. 12 to Feb. 5} discharge computed on basis of weather 

records and records for Sauk River above Whltechuck River, near Darrlngton. Shifting-control method 

used Oct. 1 to Dec. 2, Feb. 6 to Mar. 19.

1950

Day

1

2

3

4

5

6

7

8

Oct.

17

17

16.5

16.5

18.5

24

23

24

Nov.

33

31

31

36

37

37

35

-

Day

9

10

11

12

13

14

15

16

Oct.

32

34

49

34

28

25

24

22

Nov.

_

_

-

_

_

_

-

-

Day

17

18

19

20

21

22

23

24

Oct.

22

25

79

162

108

46

34

31

Nov.

_

_

.

_

_

_

_

-

Day

25

26

27

28

29

30

31

Oct.

28

27

27

28

29

31

32

No-'.

_

_

_

_

_

_

_

Monthly discharge, In second-feet, 1949-50

Month

October 1949

December. ...................................

Calendar year 1949 .......................

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

April. ......................................

May

Water year 1949-50 .......................

November 1-7...............................

Seoondfoot-days

4,013

19,723.5

3

4 595

2 224

30,759

240

Maximum

660

660

318

399

Of.

30

660

37

Minimum

19 5

L 31

13.5

38

19 5

13.5

31

Mean

129

54.0

84.3

34.3

Runoff in

acre- feet

2 330

7,960

39,120

61,080

476
194 UPPER COLUMBIA RIVER BASIN

COLUMBIA RIVER MAIN STEM

Columbia River at Birchbank, British Columbia 

(International gaging station)

Location.--Water-stage recorder, lat. 49°10', long. 117°43', at Birchban't, British Colum-

 bia, 7 miles upstream from Trail, 11 miles downstream from Kootenai River, and 17 miles 

upstream from international boundary. Datum of gage is 1,338.00 feet above mean sea 

level (levels by Geodetic Survey of Canada in 1930).

Drainage area.--34 ,000 square miles.

Hecords available.--October 1937 to September 1950. April 1913 to September 1937 at site

 at Trail, 'I miles downstream, published as Columbia River at Trail, British Columbia.

Average discharge. 37 years, 69,250 second-feet.

iiatr ernes. --Maximum discharge during year, 325,000 second-feet June 24 (gage height, 46.53

 feet); minimum, 15,300 second-feet Jan. 22 (gage height, 5.20 feet).

1913-50: Maximum discharge, 370,000 second-feet June 11, 1948 (gage height, 50.62 

feet); minimum observed, 8,940 second-feet Feb. 3, 1937 (gage height, 6.27 feet, site 

and datum then in use).

Remarks. Records excellent. Small diversions above station for irrigation. Fluctuation 

at low flow caused by power plant on Kootenai River. Flow affected by partial regulation of Kootenai River in Kootenay Lake.

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

Canada under agreement with the United States.

Revisions (water years). W 982: 1942.

Rating table, water year 1949-50 (gage height, 

and discharge, In second-feet)

feet,

5.6 

6.0 

6.5 

7.0 

8.0 

9.0 

10.0

16,900

18,600

20,700

22,900

27,500

32,300

37,300

12.0

14.0

16.0

18.0

21.0

24.0

27.0

47,500

58,000

69,100

81,000

99,000

120,000

141,000

30.0

33.0

36.0

39.0

42.0

45.0

46.5

165,000

190,000

217,000

247,000

278,000

309,000

325,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

35,400

34,800

34,600

34,200

36,600

37,800

35,700

33,800

33,300

33,000

32,600

32,300

31,900

31,100

31,100

30,700

30,400

29,200

28,100

27,200

26,900

26,700

26,500

26,600

27,200

26,000

24,800

25,400

25,400

25,200

25,000

Nov.

24,' 700

24,400

24,300

24,100

24,000

23,900

23,900

23,800

23,600

23,500

22,800

23,400

24, 700

24, 700

24,600

26,000

25,600

25,200

25,200

25,100

24,700

24,300

24,700

24,600

24,600

24,800

26,400

36,200

41,300

33,000

-

Dec.

37,600

44, 200

42,200

30,700

27,400

27,500

28,400

27,200

27,100

27,300

26,800

26,500

26,900

26,400

25,200

26,000

25,700

25,900

25,800

25,200

24,300

24,300

24,500

24,100

23,100

22,900

23,100

23,100

22,500

22,300

22,400

Jan.

21,700

21,600

20,900

21,200

21,100

20,900

21,000

20,900

20,500

20,200

19,800

20,600

20,100

19,600

19,400

18,400

18,400

18,600

18,200

17,800

17,700

17,000

18,100

17,700

18,300

18,600

17,500

18,100

17,600

17,700

17,700

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April |*_ .............. ..........

May .... ......................

June ... ......................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

17,400

17,500

17,400

17,300

17,300

17,600

17,300

19,000

20,700

20,900

20, 700

20, 700

20,700

20,500

19,900

20,700

21,600

21,600

21,500

21,600

21,200

20,700

20,900

20 , 800

21,000

21,100

21,600

20,900

-

_

-

Secondfoot-days

939,500

772,100

836,600

21,626,600

596,900

560,100

845,400

931,100

2,595,400

6,898,000

7,590,000

3,271,000

1,860,600

27,696,700

Mar.

22,700

24,100

23,700

24,300

25,700

28,300

33,400

33,800

33,400

32,100

28,900

24,900

23,800

23,900

24,100

24,200

26,100

28,600

28,100

28,100

29,100

29,200

29,000

28,900

28,700

28,100

27,600

23,500

27,100

26,100

25,900

Maximum

37,800

41,300

44,200

210,000

21,700

21,600

33,800

41 , 400

138,000

325,000

303,000

165,000

92,500

325,000

Apr.

25,400

25,200

25,200

25,300

25,500

25,000

25,300

25,200

25,100

25,100

25,200

25,300

26,300

27,300

27,800

28,700

29 , 800

30 , 800

32,600

33,800

35,400

36,500

37,800

38,600

39,300

39,800

40,200

41,100

41,100

41,400

-

May

42,000

42,200

42,400

43 , 500

43 , 700

44,400

44,900

45,400

46,700

48,300

51,200

55,200

61,000

66,300

73,100

80,600

88,500

95,000

101,000

106,000

110,000

115,000

118,000

120,000

122,000

124,000

128,000

130,000

133,000

136,000

138,000

Minimum

24,800

22,800

22,300

14,000

17,000

17,300

22,700

25,000

42,000

141,000

170,000

81,600

48,100

17,000

June

141,000

142,000

144,000

146,000

150,000

153,000

157,000

160,000

162,000

164,000

168,000

174,000

184,000

198,000

213,000

229,000

247,000

263,000

277,000

290,000

302,000

314,000

322,000

325,000

323,000

319,000

314,000

309,000

305,000

303,000

-

Mean

30,300

25, 700

27,000

59,300

19,300

20,000

27,300

31,000

83,700

230,000

245,000

106,000

62,000

75,900

July

303,000

303,000

303,000

302,000

301,000

300,000

299,000

297,000

294,000

292,000

288,000

280,000

272,000

263,000

255,000

248,000

241,000

232,000

224,000

218,000

212,000

207,000

201,000

194,000

190,000

185,000

183,000

180,000

178,000

175,000

170,000

Per 

square 

mile

0.89

.76

.79

1.74

.57

.59

.80

.91

2.46

6.76

7.21

3.12

1.82

2.23

Aug.

165,000

159,

154,

149,

DOO

DOO

300

143,000

137,000

133,

126,

119,

300

300

DOO

96,700

89,900

87,

84,

83,

300

300

300

81,600

81,800

86,

94,

97,

500

100

BOO

96,800

94,800

90,

89,

94,

300

300

LOO

93,700

93,100

92,

91,

89,

89,

300

700

300

X>0

87,800

Sept.

92,500

84,200

82,000

80,200

78,900

76,800

74,500

73,100

69,600

68,500

66,700

62,300

60,000

60,800

59,900

56,900

54,900

53,600

52,100

52 , 500

52,800

50, 700

49 , 000

48,100

48,300

49 , 600

51,000

49, 600

48,100

53 , 400

-

Runoff

Inches

1.03

.85

.91

23.68

.66

.61

.92

1.02

2.84

7.54

8.31

3.60

2.03

30.32

Acre-feet

1,863,000

1,531,000

1,659,000

42,900,000

1,184,000

1,111,000

1,677,000

1,847,000

5,148,000

13,680,000

15,050,000

6,488,000

3,690,000

54,930,000
COLUMBIA RIVER MAIN STEM 195

Columbia River at international boundary 

(International gaging station)

Location.--Water-stage recorder, lat. 49°00'03", long. 117°37 I 40" I in SE£ sec. 4, T. 40 

IN. , K. 41 E., at international boundary, half a mile downstream from Pend Oreille 

River. Auxiliary water-stage recorder 2.2 miles downstream. Datum of both gages is 

at mean sea level (Bureau of Reclamation 1937 datum).

Drainage area.--59,700 square miles.

Keeoras available. March 1938 to September 1950.

Average aiscn^rge. 18 years, 91,510 second-feet..

extremes. Maximum discharge during year, 461,000 second-feet June 24 (elevation, 1,332.53 

feet); minimum, 30,000 second-feet Jan. 16 (elevation, 1,292.36 feet).

1938-50: Maximum discharge, 550,100 second-feet June 12, 1948 (elevation, 1,338.13 

feet); minimum, 20,700 second-feet Mar. 9, 1944 (elevation, 1,289.91 feet).

Flow of about 12,900 second-feet occurred Jan. 30 or 31, 1937, based or, information 

from other gaging stations (elevation, 1,287.9 feet), from rating curve extended below 

1,291.6 feet); may have been as low sometime in'January 1930.

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

good. Discharge computed by using fall as determined by auxiliary water-stage recorder 

as a factor. Many diversions above station for irrigation but quantity is very small 

percentage of flow past gage. Some fluctuation at low flow caused by power plant on 

Kootenai River. Flow affected by regulation in Kootenai and Pend Oreille River Basins.

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

unitea states under agreement with Canada.

Revisions (water years). tf 932: 1937(m), 1938(M), 1939(m) .

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

42 , 500

42,100

42,200

42 , 400

44,800

46,800

44,700

43,400

43 , 000

42,600

42 , 500

42,500

41,900

41,300

41,400

41,000

40,900

39,900

39,300

38,800

38,000

37,800

37,300

38,200

38,700

37,900

36,100

36,800

36,700

36,400

36,200

Nov.

36,100

35,700

35,400

35,500

35,400

35,500

35,500

35,500

35,200

35,300

34,600

35,600

37,000

37,700

3 7 , 800

39,600

39,400

39,100

39,000

39,000

38,800

38,500

38,300

38,200

38,400

39,100

41,000

47,900

56,300

48,000

-

Dec.

52,500

59,100

58,500

47,400

44,800

45 , 000

45,600

44,400

43,900

43,900

43,300

42,800

42,900

42,200

41,000

41,300

41 , 400

41,900

42,300

42,300

41,200

41,100

40,900

41 , 000

39 , 800

39,600

39,900

40,000

39 , 100

39,100

38,800

Jan.

38,300

38,400

37,200

35 , 600

34,500

34,300

34,800

35,000

35,500

35,000

34,300

35,500

34,900

33,700

33,800

31,500

31,400

35,000

36,700

35,600

33,400

33,200

34,700

34,200

33,500

34,100

35,100

37,500

38,900

39,100

39,400

Month

October . . ....................

November . ....................

December ...... ..............

Calendar year 1949 .........

January ........... ...........

February ........... ..........

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

April ..... .......... .......

May ...........................

June ................... . . ...

July .......................

August ........ ...............

September ..................

Water year 1949-50 ..........

Feb.

38,200

37,500

36,600

35 , 400

34,800

35,000

34,900

36,300

38,000

38,500

39,000

39 , 100

39,300

39,400

39 , 200

40,100

41,200

41,200

41,400

41,500

41,400

41,100

41,100

40,700

41,200

41 , 000

41,800

40,400

-

-

-

Secondfoot-days

1,254,100

1,158,400

1,347,000

31,103,800

1,094,100

1,095,300

1,549,900

1,831,000

4,278,300

10,211,300

10,403,800

4,080,300

2,197,900

40,501,400

Mar.

41,600

44,400

43,700

44,700

46,400

48,800

54,900

56,000

56,200

55,800

53,600

49 , 100

46,700

46,200

46,200

46,200

47,500

51,400

51,200

51,100

52,900

53,400

53,200

53,500

53,300

52,600

51,900

47,600

50,900

49 , 700

49,200

Maximum

46,800

56,30C

59.10C

313, 20C

39.40C

41,80C

56,20C

79,80C

220,600

459, OOC

438,300

203, 90C

102, 90C

459, OOC

Apr.

48,700

48,200

48,600

49,200

50,000

50,400

50,700

51,000

51,200

51,100

51,200

52,000

54,200

55,900

56,800

58,100

59,900

61,300

64,100

66,500

69,200

70,600

72,100

73,700

75,100

76,200

77,700

78,400

79,100

79,800

-

May

80, 700

81,100

81,100

82,500

82,500

82,800

83,200

84,100

85,500

87,500

91,500

97,400

104,900

112,100

120,400

129,600

141,100

149 , 600

158,600

165,600

172,700

180,700

183,500

187,800

192,100

196,800

204,100

209,000

213,000

216,200

220,600

Minimum

36,100

34,600

38,800

27,700

31,400

34,800

41,600

48,200

80, 700

225,000

211,900

105,100

56,800

31,400

June

225,000

228,000

231,800

236,300

241 , 800

246,700

250,200

254,600

257,500

260,800

265,200

272,700

283,400

299,000

314,900

333,900

355,500

374,000

392,400

409,200

426,300

442,500

453,300

458, 700

459,000

456,600

452,700

447,600

441,900

439,800

-

Mean

40, 450

38,610

43 , 450

85,220

35,290

39,120

50,000

61,030

138,000

340,400

335,600

131,600

73,260

111,000

July

438,300

436,100

433,800

431,500

428,500

425,800

424,400

420,100

414,600

412,800

404,100

391,800

380,200

367,200

354,600

342,800

327,500

315,900

303,300

292,000

281,700

271,700

261,600

251,800

243,600

236,200

231,700

227,900

223,200

217,200

211,900

Per

square 

mile

0.678

.647

.728

1.43

.591

.655

.838

1.02

2.31

5.70

5.62

2.20

1.23

1.86

Aug.

203,

197,

191,

186,

178,

171,

164,

157,

L49,

125,

L17,

113,

111,

108,

L07,

107,

110,

117,

120,

119,

116,

112,

111,

114,

113,

112,

111,

108,

107,

106,

105,

900

900

300

400

600

700

600

700

300

800

600

800

200

700

600

400

300

200

200

500

900

200

100

200

300

200

600

300

800

900

100

Sept.

102,900

99,800

97,100

95,200

92,900

90,800

87,800

86,400

82,900

81,000

79,400

74,900

71,500

72,000

71,500

68,000

65,900

64,500

62,700

62,200

62,600

60,800

58,600

57,400

57,500

58,700

60, 100

58,700

56,800

57,300

-

Runoff

Inches

0.78

.72

.84

19.37

.68

.68

.97

1.14

2.67

6.36

6.48

2.54

1.37

25.23

Acre-feet

2,487,000

2,298,000

2,672,000

61,690,000

2,170,000

2,172,000

3,074,000

3,632,000

8,486,000

20,250,000

20,640,000

8,093,000

4,359,000

80,330,000

Note.--Auxiliary gage not operating Jan. 18-20, 31, Feb. 1, Apr. 18-26; discharge computed on 

basTs~of base gage heights. Base gage not operating Apr. 2-7, May 20, 21; discharge computed on 

basis of auxiliary gage heights.
196 COLUMBIA RIVER MAIN STEM

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

Location.--Water-stage recorder, lat. 47°57>20", long. 118°59'10", in lot 3, sec. 1, T. 28

 fl., H. 30 E., in block 12 of Grand Coulee Dam at Grand Coulee. Datum of gage is mean

sea level (levels by Bureau of Reclamation). 

Drainage area.--74,100 square miles. 

Records available.--April 1938 to September 1950. 

Extremes.--Maximum contents during year, 9,667,450 acre-feet July 10 (elevation, 1,290.15

 TeeTI; minimum, 8,114,660 acre-feet Feb. 16 (elevation, 1,270.42 feet).

1938-50: Maximum contents recorded, 9,679,900 acre-feet July 17, 1942, June 3, 1945 

(elevation. 1,290.3 feet); minimum observed, 16,200 acre-feet Aug. 29, 1938 (elevation, 

956.1 feet).

Uc bWccil c J-tJv a UJ.UIIO J- s &\JO i cc u \ yi \jy\jotm J-UH^A. J-J_LUJ- <j ^-<- vp^*. u, «-». *-^ - , - ~ ____ ,

of gates) above mean sea level. Dead storage, 4,371,000 acre-feet. Figures given 

herein represent total contents. Water is used for power development and will be used 

for irrigation of Grand Coulee project of Bureau of Reclamation. 

Cooperation.--Gage-height record and reservoir areas furnished by Bureau of Reclamation.

Capacity table (elevation, in feet, and contents, in acre-feet)

(Prepared by Geological Survey on basis of 14 contour

areas furnished by Bureau of Reclamation)

1,270.0

1,275.0

1,280.0

1,285.0

1,290.0

8,084,000

8,455,000

8,840,000

9,243,000

9,655,000

Elevation at 8 a.m., in feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

87.11

87.12

87.17

87.15

87.15

87.30

87.33

87.29

87.21

87.16

87.16

87.02

87.17

87.22

87.02

86.90

86.82

86.81

86.65

86.51

86.35

86.33

86.18

86.24

86.11

85.98

85.88

85.79

85.78

85.91

85.82

Nov.

85.76

85.76

85.78

85.77

85.77

85.87

85.88

85.61

85.38

85.10

84.95

84.82

84.94

85.07

85.12

85.10

85.08

84.98

84.94

84.96

84.91

84.68

84.50

84.52

84.59

84.66

84.66

85.12

85.54

85.97

-

Dec.

86.33

86.25

86.45

86.42

86.01

86.09

86.17

86.32

86.31

86.40

86.33

86.30

86120

86.20

86.13

85.98

85.95

85.95

85.92

85.73

85.53

85.36

85.28

85.12

85.25

85.30

85.29

85. Zl

85.13

85.06

84.95

Jan.

85.00

85. OO

84.81

84.49

84.20

83.80

83.50

83.20

82.90

82.85

82.33

81.92

81.69

81.32

81.00

80.48

79.88

79.41

78.85

78.49

78.20

77.96

77.95,

77.78

77.67

77.39

77.20

76.87

76.51

76.02

75.61

Feb.

75.14

74.51

73.91

73.35

72.81

72.34

71.92

71.80

71.39

71.27

71.03

70.96

70.89

70.75

70.69

70.50

70.65

70.67

70.74

70.67

70,90

70.74

70.67

70.53

70.57

70.72

70.92

71.12

_

_

-

Mar.

71.26

71.38

71.55

71.81

72.30

72.84

73.43

74.08

74.78

75.42

75.92

76.38

76.69

76.98

77.14

77.17

77.62

78.00

78.62

79.34

79.84

80.45

80.85

81.20

81.22

81.25

81.24

81.05

80.70

80.40

79.94

Apr.

79.37

79.23

79.64

80.07

80.24

80.09

SO. 00

79.76

79.51

79.36

79.24

79.32

79.34

79.56

79.66

79.56

79.29

79,09

79.09

79.20

79.25

79.18

79.23

79.39

79.43

79.52

79.32

79.00

78.98

79.03

-

May

78.90

78.95

78.98

78.98

79.02

79.01

78.91

78.81

78.85

78.98

79.03

79.12

79.21

79.53

79.65

79.71

79.04

78.89

78.55

77.60

77.03

76.53

75.98

75.30

74.35

73.95

74.00

74.13

73.96

73.85

74.01

June

74.13

74.29

74.07

73.91

73.84

74.17

74.41

74.37

74.48

74.87

75.52

76.03

76.60

77.45

79.11

80.34

81.13

81.99

82.66

83.43

84.78

86.14

87.09

87.70

88.90

88.69

89.19

89.49

89.57

89.52

-

Jily

89.42

89.43

89.36

89.47

89.44

89.64

89.70

89.66

89.51

8f .71

90. OO

8?. 91

ST. 86

8F.89

8J.91

8E.89

8S.88

8S.90

as. si

8S.91

89.84

89.88

89.92

89.81

89.83

89.93

89.92

89.90

89.87

89.90

89.84

Aug.

89.88

89.92

89.93

89.97

89.89

89.88

89.82

89.90

89.84

89.70

89.46

89.76

89.88

89.83

89.54

89.52

89.65

89.88

89.95

89.96

89.94

89.96

89.80

89.92

89.90

89.84

89.87

89.90

89.83

89.91

89.96

Sept.

89.74

89.38

88.97

88.42

88.10

88.23

88.27

88.48

88,72

88.73

88.62

88.55

88.52

88.60

88.75

88.67

88.55

88.59

88.40

88.16

88.04

88.00

87.92

87.89

87.80

87.76

87.91

87.87

87.88

87.85

-

Note. Add 1,200 feet to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1949 to Septembe 195O

Date

Calendar year 1949....

Mar. 31.................

Water year 1949-5O. . . .

Elevation 

(feet)t

-

1 275 3

1 279 5

1 289 5

1*2R7 8 *

-

Contents 

(acre-feet)

-

'

Change in contents 

during month 

(acre-feet)

-73,800

+49,2OO

t Elevation at 12 p.m.
COLUMBIA RIVER MAIN STEM 197

Columbia River at Grand Coulee Dam, Wash.

Location.--Water-stage recorder, lat. 47°58'00", long. 118°58'45", opposite lot 4, sec. 36, 

T. as N., R. 30 E., in pier 3 of highway bridge, 2,500 feet downstream from Grand Coulee 

Dam and 14 miles upstream from Nespelem River. Datum of gags is at mean sea level, datum of 1929.

Drainage area. 74,100 square miles.

Kecoras available. April 1913 to September 1950 (monthly discharge only, April 1913 to 

June laaii, January 1924 to May 1928).

Average discharge. 37 years, 106,900 second-feet (adjusted for change in contents in 

wanKiin L>. Koosevelt Lake beginning October 1939).

Extremes. Maximum discharge during year, 507,500 second-feet June 25 (elevation, 981.66

 feet); minimum, 30,200 second-feet Nov. 13 (elevation, 935.80 feet).

1913-50: Maximum discharge, 637,800 second-feet June 12, 1948 (elevation, 987.90 

feet); minimum may have been less than 15,300 second-feet (estimated) in January or 

February 1937, when stage-discharge relation was affected by ice.

Maximum discharge known, 725,000 second-feet (estimated) during flood of June 1894.

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

good. Diversion above station for irrigation is small percentage of flow past gage. 

Flow regulated by Franklin D. Roosevelt Lake (see preceding page) and reservoirs in 

Kootenai, Fend Oreille, and Spokane River Basins.

Discharge, in second-feet, water year October 1949 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

Oct.

45,000 

44,500 

46,400 

46,800 

45,600

46,700 

50,000 

50,400 

49,300 

46,400

47 , 700 

44,500 

46,800 

47,400 

48 , 500

47,500 

48,400 

47,000 

48,000 

47 , 600

46,600 

43,000 

40,400 

46,500 

47,200

45,000 

44,300 

40,400 

38,600 

38,400 

41,800

Nov.

41,400 

39,400 

40,200 

40,400 

36,800

37,700 

43,400 

51,300 

50,400 

49,700

46,000 

42,000 

36,700 

42,800 

42,500

45,000 

46,600 

46,800 

44,100 

42,400

51,000 

50,600 

50,000 

40,600 

39,000

40,300 

35,300 

41 , 600 

44,400 

43 , 200

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apr!

Hnv

June 

July 

Augu 

Sept

Wat

her

endar year 1949

h.. .............

ember. ..........

er year 1949-50

Dec.

54,600 

62 ,400 

64,600 

64,600 

59,000

48,700 

45,600 

47 , 200 

50,400 

46,900

48,200 

51,400 

49,500 

51,400 

54,000

52,000 

48,000 

46,600 

56,000 

57,800

56,200 

54,100 

51,200 

42,400 

40 , 900

42,800 

50,700 

47,700 

49,400 

49,400 

46,300

Jan.

43,200 

47,600 

56,500 

56,400 

56,900

54,900 

53,100 

50,800 

55,100 

54,300

56,300 

56 , 600 

56,800 

56,200 

55,200

56,600 

58,700 

59,600 

58,200 

54,300

47 , 000 

43 , 900 

50,800 

52 , 100 

53,200

54,200 

54,400 

57,200 

58 , 200 

58,200 

59,700

Feb.

62,600 

65,000 

64,800 

64,700 

60,400

62,600 

55,900 

54,900 

55,900 

57,600

53,800 

52,300 

54,800 

a53,000 

a53,700

352,600 

351,400 

50,800 

48,900 

53,800

52,000 

53,000 

56,200 

54,600 

58,600

58,800 

57,100 

54,300

Mar.

57,800 

56,800 

57,500 

59,800 

59,300

59,000 

58,300 

58,800 

58,200 

58,600

59,300 

59,000 

59,200 

58,800 

58,800

58 , 900 

58 , 200 

59,000

59,200 

58,600

57,300 

62,200 

66,700 

73,400 

80,300

79,300 

81,400 

85,400 

89,100 

87 , 600 

84,600

Observed

Discharge in 

second-feet

Maximum

50,400 

51,300 

64,600

551 , 500

59,700 

65,000 

89,100 

322,700 

272,7001 

494,500 E 

480,400 I 

209,200] 

120,200

494,500

Minimum

38,400 

35,300 

40,900

35,300

43,200 

48,900 

56,800 

60,100 

09,000 

66,300 

24,600 

03,200 

58 , 200

35,300

Mean

45,700 

43,390

51,290

98,470

54,390 

56,220 

65,170 

91,960 

184,900 

367,600 

355,600 

134,000 

78,700

127,800

Runoff 

in 

acre-feet

2,810,000 

2,582,000 

3,154,000

71,290,000

3,345,000 

3,122,000 

4,007,000 

5,472,000 

11,370,000 

21,870,000 

21,870,000 

8,237,000 

4,683,000

92,520,000

Apr.

80,100 

63 , 900 

60,100 

64,200 

74,900

82,100 

86,600 

89,800 

86,900 

83,300

76,900 

74,500 

77,200 

82,200 

89,900

97,700 

97,600 

96,400 

94,500 

96,300

102,400 

105,100 

105,000 

105,500 

106,600

114,600 

122,700 

118,700 

108 , 100 

115,100

May

109,000 

112,400 

113,000 

113,300 

113,200

118,700 

117,900 

115,300 

112,600 

113,400

125,500 

127,100 

135,100 

148,900 

165,500

190,000 

199,600 

205,100 

232,300 

238,800

238,200 

244,200 

258,300 

272,700 

264,200

247,500 

244,800 

262,100 

266,600 

262,700 

262,600

Change in

Franklin D. 

Roosevelt 

Lake 

(acre-feet)

-114,800 

-t-24,600 

-90,200

-73,800

-765,200 

-306,000 

+629,200 

-39,000 

-329,500 

+1,181,000 

+33,200 

+8,300 

-182,400

+49,200

June

266,300 

276,300 

286,900 

289,500 

286,000

286,900 

298,400 

303,800 

290,600 

279,600

290,500 

296,500 

305,300 

284,400 

320,800

343,600 

374,800 

402,400 

416,800 

414,500

410,600 

446 , 900 

479,500 

478,600 

494,500

470,900 

484,900 

482,000 

482,600 

482,600

July

477,400 

480,400 

463,400 

466,500 

450,800

455,800 

453,500 

453 , 900 

435,500 

407,700

443,500 

417,600 

396,200 

383,600 

377,100

362,400 

344,600 

333,300 

308,700 

318,200

302,200 

284,500 

277,500 

265,700 

254,400

245,300 

243,200 

235,500 

235,300 

225,400 

224,600

Aug.

209,200 

202,500 

195,600 

193,900

182,800

174,500 

170,500 

162,400 

158,200 

144,200

112,600 

107,700 

112,800 

115,000 

118,000

103,200 

104,000 

110,600 

120,800 

120,300

117,100 

116,700 

107,100 

114,500 

117,900

112,500 

110,300 

114,100 

108,000 

103,900 

111,500

Sept.

119,500 

120,200 

119,100 

116,100 

93,500

88 , 500 

90,000 

73,400 

81,400 

85,500

84,600 

81,500 

80,100 

68,300 

72,900

75,100 

66,500 

70,200 

75,400 

72,400

68,300 

65,500 

62,600 

58,200 

62,100

58 , 600 

361,000 

362,400 

63,800 

64,200

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-feet

2,695,000 

2,607,000 

3,064,000

71,210,000

2,580,000 

2,816,000 

4,636,000 

5,433,000 

11,040,000 

23,050,000 

21,900,000 

8,245,000 

4,501,000

92,570,000

Discharge in 

secord-feet

Mean

43,830 

43,810 

49,830

98,360

41,960 

50,700 

75,400 

91,300 

179,50(1 

387,40(1 

356 , 200 

134,100 

75,640

127,900

Per 

square 

mile

1.73

Runoff

inches

23.42

a No gsge-height record; discharge computed on basis of record collected by the Bureau of Reclamation.

Note. Monthly runoff per square mile and depth in inches not computed because of large upstream 

regulation in Kootenai, Fend Oreille, and Spokane River Basins.
198 COLOMBIA RIVER MAIN STEM

Columbia River at Trinidad, Wash.

Location. Water-stage recorder, lat. 47°13'30", long, 120°00'50", in SE-J- sec. 13, T. 20 

N., K. 22 E., half a mile southwest of Trinidad, 8j miles downstream from Colocham 

Creek, and 12 miles downstream from Rock Island Dam. Datum of gage is 500 feet above 

mean sea level, subject to correction to 1929 datum.

Drainage area.--89,700 square miles.

Hecords available.--October 1930 to September 1950. January to December 1910 (gage heights 

only), and May 1913 to December 1916 at sites about 1 mile above and at highway bridge 

at Wenatchee, 24 miles upstream, published as Columbia River at Wenatchee; January 1917, 

at Beverly, 29 miles downstream; January 1917 to September 1930 at site half a mile 

north of Vernita, 50 miles downstream, published as Columbia River at Vernita.

Average discharge.--37 years (1913-50), 116,800 second-feet.

Kxtrernes.--Maximum discharge during year, 525,300 second-feet June 24, July 1 (gage height, 

53.40 feet); minimum, 42,800 second-feet Nov. 14 (gage height, 20.38 feet).

1913-50: Maximum discharge, 692,600 second-feet June 12, 1948 (gage height, 59.35 

feet); minimum, 4,120 second-feet Feb. 10, 1932 (gage height, 11.40 feet).

Maximum discharge known, about 740,000 second-feet June 7, 1894 (besed on information 

obtained at other points).

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

good. Diversion above station for irrigation is small percentage of flow past gage. 

Some diurnal fluctuation caused by power plants at Rock Island and at Grand Coulee 

Dams. Flow regulated by Franklin D. Roosevelt Lake (see p. 196) and reservoirs in 

Kootenai, Pend Oreille, Spokane, Okanogan, and Chelan River Basins.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

20.5

20.9

21.3

22.0

23.0

24.0

26.0

43,500

45,900

48,300

52,500

59,500

56,500

82,500

28.0

30.0

32.0

34.0

36.0

38.0

40.0

99,500

118,800

140,600

164,600

190,700

219,100

250,100

42.0

44.0

46.0

283,300

319,300

357,800

398,900

443,200

490,400

540,900

Discharge, In second-feet, water year October 1949 to September 1950

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

Oct.

53,200 

51,500 

49,900 

51,500 

52,100

51,900 

51,500 

55,200 

56,400 

56,400

53,100 

53,300 

51,200 

52,600 

53,100

55,400 

53,200 

54,400 

52,800 

53,600

53,800 

52,900 

49,200 

47,300 

50,200

52,600 

51,500 

50,300 

50,800 

47,OOO 

46,700

Nov.

48,900 

49,300 

47,200 

46,90O 

47,300

44,300 

44,000 

5O,OOO 

57,200 

56,600

55,100 

52,500 

47,600 

44,200 

49,300

49,800 

51,500 

53,200 

53,600 

51,200

49,3OO 

56,6OO 

57,800 

57,800 

51,800

50,100 

60,6OO 

64,300 

67,100 

67,400

Dec.

60,600 

70,500 

77,900 

78,400 

76,800

72,000 

61,500 

56,100 

56,800 

58,400

55,400 

57,000 

59,800 

58,400 

59,500

62,300 

61,100 

57,200 

54,800 

61,000

63,900 

62,900 

61,400 

58,200 

51,300

47,900 

48,600 

55,900 

55,500 

56,200 

57,100

Jan.

53,500 

50, OOO 

51,700 

60,700 

62,500

62,900 

63,000 

61,700 

59,400 

61,800

61,100 

62,800 

62,200 

62,100 

61,700

60,800 

62,300 

64,000 

64,800 

64,200

60,600 

54,200 

50,600 

54,700 

56,700

58,700 

59,300 

60,200 

62,900 

64,000 

64,000

Feb.

69,200 

a70,000 

a71,OOO 

a70,000 

a6B,OOO

a66,000 

a66,500 

62,100 

59,800 

60,400

61,100 

58,300 

57,500 

58,800 

57,600

56,900 

57,800 

54,900 

55,000 

55,500

58,500 

58,300 

58,200

61,600 

60,800

64,300 

67,300 

65,100

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50. ......................

Mar.

61,800 

63,800 

63,200 

66,OOO 

70,200

69,200 

67,900 

67,100 

66,700 

65,800

65,900 

65,900 

65,500 

66,500 

65,200

65,700 

66,600 

66,900 

66,900

66,100

66,200 

65,200 

69,100 

74,700 

80,900

86,900 

86,700 

88 , 500 

92,500 

96,200 

95,300

Apr.

32,300

69,400 

74,700 

68,900 

71,500

81,900 

89 , 30O 

93,200 

96,700 

94,200

91,100 

85,600 

84,000 

86,800 

91,100

99,1OO 

107,800 

108,800 

107,500 

105,400

109,000 

115,500 

117,900 

118,000 

118,800

119,800 

127,700 

135,500 

130,400 

121,700

Secondfoot-days

1,614,600 

1,582,500 

1,874,400

41,127,500

1,859,100 

1,730,500 

2,225,100 

3,033,600 

6,586,400 

12,328,500 

11,943,900 

4,705,900 

2,614,400

52,098,900

May

127, OOC 

123,400 

126,700 

126,800 

127,000

127,600 

132,200 

132,000 

129,900 

128,900

131,600 

148,500 

162,000 

177,100 

195,200

216,200 

242,100 

247,500 

253,300 

276,500

277,900 

279,900 

287,100 

299,800 

311,700

301,100 

287,200 

294,300 

308,800 

304,900 

302,200

Maximum

56,400 

67,400 

78,400

401,200

64,800 

71,000 

96,200 

135,500 

311,700 

521,000 

523,600 

235,900 

129,200

532,600

June

302,000 

308,800 

320,600 

330,900 

336,400

336,200 

335,600 

343,800 

341,300 

328,600

323,100 

336,800 

350,000 

367,800 

361,200

393,200 

422,600 

452,600 

477,900 

489,400

484,600 

487,500 

512,300 

521,000 

516,600

512,800 

497,800 

505,300 

510,800 

521,000

Julj523,600 

516,600 

514, COO 

471,000 

498,000

483,700 

486,100 

480,300 

471, SOO 

451,200

434,900 

451,900 

427,600 

412,700 

401, COO

391,600 

375,800 

362,800 

352,200 

335,300

333,400 

315,500 

304,300 

297,100 

284,500

274,800 

1271,000 

268,000 

261,300 

250,700 

241,100

Minimum

46,7OO 

44,OOO 

47,900

44,000

50,000 

54,900 

61,800 

68,900 

123,400 

302,000 

241,100 

115,300 

64,100

44,000

Aug.

235,900 

225,200 

217,600 

212,000 

208,100

198,400 

191,300 

185,000 

178,400 

174,000

164,400 

141,100 

123,200 

127,000 

1129,000

al30,OOO 

1118,000 

3119,000 

124,100 

132,200

131,600 

129,600 

129,600

120,600 

126,700

129,000 

124,100 

121,700 

124,400 

119,400 

115,300

Mean

52,080 

52,750 

60,460

112,700

59,970 

61,800 

71,780 

101,100 

212,500 

411,000 

385,300 

151,800 

87,150

142,700

Sept.

122,300 

129,200 

129,200 

128,300 

124,200

104,300 

96,60O 

100,700 

84,100 

85,500

87,900 

89,300 

87,500 

79,900 

75,000

79,300 

80,500 

73,200 

76,400 

81,200

78,400 

74 , 700 

71,100 

69,000 

64,100

69,200 

66,200 

67,500 

69,500 

70,100

Runoff In 

acre-feet

3,203,000 

3,139,000 

3,718,000

81,570,000

3,687,000 

3,432,000 

4,413,000 

6,017,000 

13,060,000 

24,450,000 

23,690,000 

9,334,000 

5,186,000

103,300,000

a No gage-height record; discharge computed on basis of 1 discharge measurement and records for 

station at Grand Coulee Dam.
KOOTENAI RIVER BASIN lyy

Kootenai River at Newgate, British Columbia 

(International gaging station)

Location.--Water-stage recorder, lat. 49°01', long. 115°10', at old highway bridge site, 

(J.7 mile northwest of Newgate and 0.9 mile north of international boundary.

Drainage area.--7,660 square miles.

Records available.--October 1930 to September 1950.

Average discharge.--20 years, 9,610 second-feet.

Extremes. Maximum discharge during year, 71,400 second-feet June 23 (gage height, 12.69 

feet); minimum daily, 1,770 second-feet Jan. 30.

1930-50: Maximum discharge, 98,200 second-feet May 28, 1948 (gage height, 15.02 

feet); minimum observed, 994 second-feet Feb. 7, 1936; minimum gage height observed, 

0.21 foot Jan. 11, 1944.

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

which are fair. Records give total flow of main channel and slough.

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

under agreement with the United States.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,240

4,300

 4,400

4,360

4,560

4,860

4,740

4,640

4,500

4,280

4,240

4,260

4,200

4,140

4,020

4,060

3,920

3,880

3,780

3,670

3,520

3,460

3,440

3,480

3,480

3,400

3,400

3,520

4,140

4,240

4,000

Nov.

3,960

3,8OO

3,700

3,670

3,570

3,610

3,630

3,630

3,630

3,670

3,590

3,610

3,820

3,820

3,800

3,740

3,630

3,550

3,480

3,400

3,370

3,160

3,100

3,160

3,280

3,760

4,740

7,200

6,730

5,990

-

Dec.

5,530

5,330

5,160

4,8OO

4,400

4,2OO

3,980

*3,480

3,190

3,170

2,710

2,740

2,740

2,660

2,720

2,880

3,070

2,79O

2,480

2,370

2,210

2,250

2,430

2,560

2,630

2,740

2,790

2,970

2,820

2,920

2,970

Jan.

2,980

2,820

2,580

2,280

2,220

2,240

2,350

2,480

2,550

2,650

2,690

2,600

2,460

2,380

2,320

2,270

2,250

2,250

2,250

2,300

2,460

2,630

2,680

2,540

2,350

2,250

2,130

2,020

1,890

1,770

1,790

Month

October . . ...................

November .... .................

December ... .... ............

Calendar year 1949 .........

January .... ................ .

February .... . . .... .... ....

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

April ....... ..... ....... . .

May ................ .... . . .

June .......... ........ ... .

July . . ..... .... .... . .....

August ..... ..... ............

September ................... .

Water year 1949-50 . .... ...

Feb

1,810

1,840

1,860

*1,910

1,950

2,02O

2,060

2,110

2,150

2,220

2,250

2,310

2,340

2,390

2,410

2,410

2,390

2,370

2,360

2,350

2,300

2,290

*2,270

2,370

2,400

2,480

2,640

2,550

_

-

Secondfoot-days

125,130

117,800

99,690

2,966,380

73,430

62,810

82,870

151,500

632,720

1,400,600

876,700

327,830

183,470

4,134,550

Mar.

2,450

2,320

2,420

2,790

3,480

3,740

3,460

3,170

2,900

2,630

2,440

2,400

2,370

2,440

2,440

2.5OO

2,660

2,630

2,640

2,660

2,630

2,630

2,630

*2,580

2,550

2,540

2,550

2,550

2,540

2,540

2,540

Maximum

4,860

7,200

5,530

48,100

2,980

2,640

3,740

7,680

36,000

70,400

52,200

14,000

8,260

70,400

Apr

2,630

3,O70

3,160

3,020

2,710

2,870

3,070

3,100

3,190

3,120

3,190

3,22O

3,840

4,860

5,680

6,260

7,200

7,300

6,680

6,560

7,080

7,680

7,550

7,180

6,800

6,660

6,400

6,08O

5,750

5,590

-

May

5,810

6,310

6,700

6,780

6,780

6,920

7,300

7,800

8,640

9,780

12,100

16,200

22,100

28,700

31,800

31,90O

3O,60O

29,000

26,400

23,000

20,400

22,400

27,OOO

26,600

24,800

25,000

28,700

34,300

36,000

33 , 200

29,700

Minimum

3,400

3,100

2,210

2,120

1,770

1,810

2,320

2,630

5,810

26,600

15,000

8,5OO

4,800

1,770

June

27,800

27,4OO

26,6OO

28, 700

34,500

39,2OO

39,700

35,200

30,000

27,600

31,000

39,600

47,900

53,100

55,400

55,900

58,50O

61,400

63,300

64,800

67,400

7O.20O

70,400

65,000

55,800

47,200

42,800

42,900

43,800

47,500

-

Mean

4,040

3,930

3,220

8,127

2,370

2,240

2,670

5,050

20,400

46,700

28,300

10,600

6,120

11,300

July

52,200

51,300

47,800

44, 800

41,800

41,4OO

41,700

40,100

36,600

34,400

32,200

29,600

26,500

25,700

25,400

24,700

23,200

22,000

20,800

20,800

20,600

19,700

19,OOO

18,800

17,200

17,000

16,900

17,300

16,400

15,800

15,000

Per

square 

mile

0.53

.51

.42

1.06

.31

.29

.35

.66

2.66

6. 1C

3.6£

1.3E

.80

1.4f

Aug

14,OOO

13, £

13, 1

12, £

00

00

iOO

12,600

12,100

11,'

10,;

10, f

tOO

00

3 00

10,300

10,100

10, c

9,

9,£

DOO

90

J50

9,710

10,400

11, J

11,

10,1

00

oo

wo

10,100

9,500

8,

s,;

9,]

80

oo

20

10,500

10,500

9,-

9,

9,1

8,

OO

'60

)10

10

8,500

Ri

Inches

0.61

.57

.48

14.40

.36

.30

.40

.74

3.07

6.81

4.25

1.59

.89

20.07

Sept.

8,260

8,O2O

7,780

7,600

7,450

7,380

7,250

7,130

6,990

5,820

6,560

6,340

6,130

5, 900

5.760

5,580

5,470

5,320

5,230

5,120

5.O3O

4,970

4,880

4,800

4,920

5,100

5,120

5,620

5,580

5,360

-

inoff

Acre-feet

248,200

233,700

197,700

5,884,000

145,600

124,600

164,400

300,5OO

1,255,000

2,778,000

1,739,000

650,200

363,900

8,201,OOO

* Winter discharge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Jan. 

to Feb. 13 except occassional readings of staff gage).

238382 O - 53 - 14

to Mar. 3 (no gage-heifht record Jan. 17
200 KOOTENAI RIVER BASIN

Kootenai River at Lit "by, Mont.

Location (revised) . Water-stage recorder, lat. 4S°24'00", long. 115°33 T 10", in SEijSW^ 

 sec. 34, T. 31 N., R. 31 W., 1,800 feet downstream from highway bridge at Libby and 

1 mile downstream from Libby Creek.

Drainage area.--10.240 square miles.

Records available.--October 1910 to September 1950.

Average discharge.--24 years (1912-15, 1917-18, 1928-32, 1934-50), 10,930 second-feet.

Extremes.--Maximum discharge during year, 79,100 second-feet June 23 (gage height, 16.23 

feet); minimum recorded, 1,900 second-feet Jan. 15.

1910-50: Maximum discharge, 130,000 second-feet June 21, 1916 (gage height, 20.7 

feet, present datum); minimum, 895 second-feet Jan. 11, 1930, discharge measurement.

Remarks.--Records excellent except those for periods of ice effect or no gage-height recbrd, which are poor. No known diversion or regulation above station.

Revisions (water years).--W 1042: 1933.

Rating table, water year 1949-50, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

0.7 

1.0 

1.5 

2.0 

3.0

1,590

2,160

3,240

4,440

7,160

4.0 

5.0 

6.5 

8.0 

1O.O

10,000

13,200

19,200

25,900

35,900

12.0

14.0

16.2

47,900

62,100

78,900

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,570

4,540

4,620

4,730

4,800

5,100

5,280

5,150

5,010

4,880

4,670

4,700

4,650

4,600

4,520

4,420

4,390

4,240

4,240

4,160

a4, 190

h4, 220

a3,970

3,720

3,820

3,770

3,750

4,420

5,230

5,260

4,960

Nov.

4,700

4,570

4,390

4,240

4,140

4,020

4,060

4,090

4,090

4,190

4,190

4,190

4,780

5,040

5,040

4,830

4,620

4,470

4,340

4,240

4,060

4,020

3,870

3,890

4,040

4,490

7,160

9,370

9,910

8,780

-

Dec.

7,720

7,080

6,850

6,430

5,960

5,450

*5, 180

4,830

4,360

4,060

3,380

2,800

3,260

3,130

3,170

3,560

3,890

3,680

2,690

2,480

2,290

2,310

2,620

2,980

3,170

3,000

3,200

3,840

4,120

3,870

3,650

Jan.

3,720

3,360

2,800

a2,400

h2,330

a2,350

h2,370

a2,400

2,580

2,730

2,730

2,760

2,390

2,020

1,900

bl,950

b2,000

b2,050

b2,200

b2,300

2,620

*4,020

5,010

b4, 600

b4,000

b3,600

b3,400

b3,100

b2,900

a2, 700

a2, 600

Month

October .......................

November ......................

December ......... ........ ...

Calendar year 1949 .........

January .......................

February ......................

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

April ....................... .

May

June ..........................

July .............. ...........

August ........................

September .....................

Water year 1949-50 ..........

Feb.

a2, 500

a2,400

b2,600

b2,700

b3, 000

b3,200

b3,400

b3,600

b3,500

b3,400

b3,300

b3, 200

b3, 200

b3,300

b3, 400

b3, 500

b3,600

b3,600

b3,600

b3,700

b3, 800

b3,900

h3,920

a4, 000

h4,020

h4,090

a4,300

h4,520

_

-

-

Secondfoot-days

140,580

147,320

125,010

3,701,060

87,890

97,250

152,420

284,920

842, 120

1, 605, 800

971,800

347,800

190,730

4,994,140

Mar.

a4, 800

h4.,490

a4, 400

h4, 830

a6,000

7,240

6,960

6,430

5,820

5,310

b4, 500

b4,200

*b4,200

b4,200

b4,260

4,260

4,540

4,990

4,930

4,960

5,010

4,990

4,880

4,670

4,620

4,570

4,546

4,520

4,440

4,420

4,440

Maximum

5, 26C

9,910

7,720

61,300

5,010

4,520

7,240

14,800

44, 100

78,900

56,900

15,000

8,620

78,900

Apr.

4,910

6,240

6,380

6,150

5,930

5,800

5,930

6,120

6,150

6,070

6,100

6,210

6,960

8,360

10, 000

11,200

13,300

14, 500

»13,300

12,700

13, 400

14,800

14,700

13, 500

12,400

11,800

11,300

10, 900

10,200

9,610

-

May

9,520

10, 100

10, 600

10, 800

10, 600

10,600

10, 800

11,300

12,200

14,000

17,700

23,300

30, 800

39,300

44,100

43,800

41,900

39,000

35, 400

30, 800

27,700

28,500

34,500

34, 700

32, 100

31,600

34, 700

40, 400

43,200

41,000

37,100

Minimum

3,720

3,870

2,290

2,290

1,900

2,400

4,200

4,910

9,520

33, 000

16, 100

8,900

5,010

1,900

June

34,800

34,000

33,000

34, 600

40,300

46,200

47,800

42, 900

36,700

33, 000

34,000

42,600

54,900

62, 600

64,700

64,700

66,200

68,200

69,800

71,800

74,700

77,900

78, 900

74,600

66,400

55, 600

h49, 600

h47, 5QO

h47, 800

h5o, 000

-

Mean

4,535

4,927

4,033

10, 140

2,835

3,473

4,917

9,497

27,170

53, 530

31,350

11,220

6,358

13,680

July

55, 500

56,900

55,200

h51,000

h48,2oO

h45, 800

h45, 100

h43, 900

h4 1,400

h38, 400

a36,300

h34, 200

h29,900

a29,000

828,000

h27,200

h25, 500

a24, 600

a23, 600

a22,700

b.2 1,800

a2 1,100

a20, 400

a20,800

a!9,100

h!8, 400

al8,300

his, 200

h!7,900

h!7,300

h!6,100

Per

square 

mile

0.443

.481

' 394

.990

.277

.339

.480

.927

2.65

5.23

3.06

1.10

.621

1.34

Aug.

h!5, 000

h!4,0

h!3, 7

13,5

00

00

00

13,400

12,800

12,2

11,7

11,4

00

00

00

11,200

11,000

10,9

10,8

10,6

00

00

00

10, 400

10, 400

11,3

12,6

11,6

00

00

00

10, 800

10,000

9,6

9,4

9,7

10

60

50

10,700

11,000

10,5

9,8

9,4

9,2

00

BO

50

30

8,900

Sept.

8,620

8,310

8,060

7,940

7,890

7,780

7,640

7,410

7,160

6,880

6,660

6,520

6,320

6,180

6,040

5,960

5,690

5,640

5,580

5,450

5,340

5,280

5,230

5,120

5,010

5,180

5,260

5,550

5,610

5,420

-

Runoff

Inches

0.51

.54

.45

13.43

.32

.35

.55

1.03

3.06

5.84

3.53

1.27

.69

18.14

Acre-feet

278,800

293,200

248,000

7,341,000

174,300

192,900

302,300

565, 100

1,670,000

3,185,000

1,928,000

689,900

378,300

9,906,000

Peak discharge (base. 57.000 sec.-ft.). May 16 (4 a.m.) 44,600 sac.-ft. ; May 29 (7 a.m.) 43,5OO 

sec.-ft.} June 7 (4 to 8 a.m.) 48,400 sec.-ft.; June 23 (11 a.m.) 79,100 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge interpolated or computed on basis of temperature records and records for station at Leonia, Idaho.

b Stage-discharge relation affected by ice.

h Computed- from wire-weight gage readines .
KOOTEHAI RIVER BASIN 20J 

Kootenai River at Leonla, Idaho

Location.--Water-stage recorder, lat. 48°37', long. 116°03' , in NW^-WWv s=c. 20, T. 33 N., 

H. 34 W. (revised), at Leonia, 450 feet east of Montana-Idaho State line and half a 

mile upstream from Boulder Creek. Datum of gage Is 1,700.25 feet abo-'e mean sea level, 

datum of 1929, supplementary adjustment of 1947.

Drainage area. 11,740 square miles.

Records available.--March 1928 to September 1950.

Average discharge.--22 years, 12,803 second-feet.

Extremes.--Maximum discharge during year, 87,100 second-feet June 23 (gaze height, 118.21 

feet); minimum daily, 2,200 second-feet Jpn. 15.

1928-50: Maximum discharge, 123,000 second-feet May 28, 1948 (gag? height, 123.40 

feet); minimum, 996 second-feet Dec. 9, 1936; minimum gage height, 97.56 feet Dec. 10, 

1929.

Floods of June 1894 and 1916 reached stages of 124.6 and 121.6 feet, respectively, 

from information by Great Northern Railway Co.

Remarks.--Records excellent except those for periods of ice effect, which are fair. No 

diversion or regulation above station.

Discharge, in second feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4,970 

4,900 

4,900 

4,950 

5,240

5,450 

5,700 

5,570 

5,450 

5,430

5,240 

5,090 

5,120 

5,070 

5,000

4,880 

4,880 

4,720 

4,740 

4,580

4,490 

4,390 

4,280 

4,260 

4,210

4,280 

4,230 

4,490 

5,970 

5,970 

5,800

Nov.

5,400 

5,210 

5,040 

4,880 

4,760

4,670 

4,600 

4,560 

4,620 

4,650

4,740 

5,000 

5,740 

6,120 

6,040

5,870 

5,600 

5,330 

5,190 

5,070

4,920 

4,690 

*4,690 

4,650 

4,780

5,330 

10, 900 

13,200 

12,500 

11,200

Dec.

9,540 

9,000 

8,490 

7,720 

7,080

6,520 

6,100 

5,660 

5,400 

5,030

4,440 

3,960 

3,940 

3,850 

3,800

4,000 

4,440 

4,530 

3,500 

3,400

3,000 

2,800 

3,400 

3,600 

3,800

3,700 

3,800 

4,500 

4,920 

4,690 

4,370

Jan.

4,460 

3,670 

3,000 

2,800 

2,700

2,700 

2,700 

2,800 

3,500 

3,600

3,600 

3,600 

3,000 

2,500 

2,200

2,300 

*2,350 

2,500 

2,600 

3,000

3,800 

4,500 

5,500 

5,000 

4,800

4,500 

4,000 

3,800 

3,600 

3,400 

3,200

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 194£ 

ary

ember .....................

ter year 1949-50 ..........

Feb.

3,100 

3,000 

3,200 

3,500 

3,800

4,000 

4,100 

4,200 

4,100 

4,000

3,900 

3,800 

3,800 

3,900 

4,000

4,100 

4,100 

4,100 

4,300 

4,500

*4, 550 

4,600 

4,600 

4,700 

4,780

4,950 

5,280 

5,500

Second 

foot-days

154,250 

179,950 

152,980

4,300,110

105,680 

116,460 

205,940 

396,860 

1,101,400 

1,867,700 

1,077,600 

382,210 

197,970

5,939,000

Mar.

5,800 

5,600 

5,500 

5,800 

10, 600

10, 900 

10, 100 

8,700 

7,800 

6,860

6,200 

5,800 

5,400 

5,200 

5,200

5,200 

5,500 

f6,560 

f7,040 

7,100

7,040 

6,960 

6,860 

6,560 

6,330

6,200 

6,100 

*5,920 

5,770 

5,720 

5,620

Maximum

5,970 

13,200 

9,540

74,400

5,500 

5,500 

10,900 

20,800 

60,500 

86,400 

63,800 

17,500 

8,860

86,400

Apr.

6,430 

8,560 

8,780 

8,420 

8,060

7,860 

7,890 

8,200 

8,080 

8,030

7,970 

8,220 

9,560 

12,200 

14,700

16,400 

19,500 

20, 500 

19,000 

18,200

19,200 

20, 800 

20,500 

18,800 

17,300

16,400 

15,500 

14, 800 

13,800 

13,200

May

13, 100 

13,800 

14,600 

14,600 

14,300

14,200 

14,400 

15,100 

16,400 

19, 100

24,300 

31,100 

42,400 

55,600 

60, 500

58,900 

55,700 

51, 100 

44,200 

38,000

34,500 

36, 600 

43,700 

43,900 

40,300

40, 100 

45,000 

52,100 

55,100 

51,900 

46,800

Minimum

4,210 

4,560 

2,800

2,700

2,200 

3,000 

5,200 

6,430 

13, 100 

39,200 

18, 500 

9,220 

5,380

2,200

June

43,900 

42,800 

41,800 

44,200 

51, 400

57 , 800 

58,600 

52,500 

44,300 

39,200

40, 300 

51,400 

64,300 

71,200 

72,900

73,800 

74,900 

76,900 

78,300 

80,600

83,200 

86,400 

86,400 

82,000 

74,600

64, 600 

57,900 

56,000 

56,600 

58,900

Mean

4,976 

5,998 

4,935

11,780

3,409 

4,159 

6,643 

13,230 

35,530 

62,260 

34,760 

12,330 

6,599

16,270

July

62,500 

63, 800 

62,000 

58,200 

54,800

52,200 

50,600 

48,900 

46,100 

43, 600

41,200 

38,000 

33,400 

30,200 

28,800

29,000 

28,000 

26,200 

24,900 

24, 500

24,200 

23,400 

22,300 

21,500 

20,900

20,400 

20,300 

20, 100 

19,800 

19,300 

18 . 500

Per 

square 

mile

0.424 

.511 

.420

1.00

.290 

.354 

.566 

1.13 

3.03 

5.30 

2.96 

1.05 

.562

1.39

Aug.

17,500 

16,400 

15,700 

15,300 

15, 100

14,700 

13,900 

13,400 

13,000 

12,700

12,300 

12,100 

12,000 

11,700 

11,200

11, 200 

11, 800 

13,500 

12,900 

11,700

10, 900 

10, 100 

10,100 

10, 100 

11,000

11,600 

11,100 

10, 500 

9,900 

9,590 

9,220

Sept

8,860 

8,590 

8,240 

8,080 

7,990

7,930 

7,750 

7,570 

7,340 

7,080

6,880 

6,770 

6,640 

6,420 

6,290

6,190 

6,060 

5,930 

5,880 

5,780

5,680 

5,600 

5,530 

5,480 

5,380

5,430 

5,560 

5,680 

5,730 

5,630

Runoff

Inches

0.49 

.57 

.48

13.62

.33 

.37 

.65 

1.26 

3.49 

5.92 

3.41 

1.21 

.63

18.81

Peak discharge (base, 30.000 sec . -f t . ) . May 15 (6:30 a.m.) 61,000 sec. -ft.; May 29 (8

Acre feet

306,000 

356,900 

303, 400

8,529,000

209,600 

231,000 

408, 500 

787,200 

2,185,000 

3,705,000 

2,137,000 

758,100 

392,700

11,780,000

30 a.m.)

winter aiacnai ge meaaui ement nmue un unm uay .

f Computed on basis of partly estimated gage-height record.

Note. Stage-discharge relation affected by ice Dec. 15, 16, 20-28, Jan. 3 to Mar. 4, Mar. 11-16. 

Stage-discharge relation at recorder site indefinite Nov. 27 to Dec. 10; discharge computed on basis 

of auxiliary wire-weight gage readings.
202 KOOTENAI RIVER BASIN

Kootenai River at Boom Camp, near Bonners Ferry, Idaho

Location.--Water-stage recorder, lat. 48°42i05", long. 116°14'30", in M£ sei. 29, T. 62 

 N., H. 2 E., 600 feet east of Boom Camp, 3j miles upstream from Bonners Fsrry, and 

4 miles downstream from Moyie River. Datum of gage is 1,700.00 feet abovs mean sea 

level (U. S. Coast and Geodetic Survey datum); gage readings have been reiuced to elevations above mean sea level.

Records available.--October 1927 to September 1950 in reports of Geological Survey. April 

192b to September 1927 in reports of Department of Resources and Development, Canada.

Extremes.--Maximum elevation during year, 1,778.21 feet June 23; minimum, 1,756.91 feet 

Jan. 4.

1927-50: Maximum elevation recorded, 1,779.87 feet May 28, 1948; minimum, 1,755.53 

feet Dec. 9, 1936.

Remarks. Elevations affected by backwater from Kootenay Lake May 13 to July 20. Dikes 

of drainage districts numbers 2, 9, 12, 14, and of Spurling, Casey, and Smith Creek 

tracts in United States broke during period June 19-24 affecting elevations at high

stages.

Elevation, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23"

24

25

26

27

28

29

30

31

Mean

Oct.

57.99

57.97

57.98

58. OO

58.18

58.26

58.34

58.27

58.21

58.21

58.12

58.05

58.06

58.03

57.99

57.94

57.94

57.87

57.88

57.79

57.78

57.74

57.69

57.68

57. 66

57.69

57.66

57.79

58.47

58.45

58.37

58.00

Nov.

58.21

58.12

58.05

57.98

57.93

57.89

57.86

57.86

57.88

57.88

57.94

58.07

58.45

58.58

58.52

58.46

58.33

58.23

58.16

58.10

58.03

57.92

57.95

57.93

58.04

58.32

59.90

60.81

60.63

60.23

-

58.41

Dec.

59.84

59.67

59.53

59.34

59.15

58.94

58.78

58.57

58.44

58.31

58.27

58.04

57.74

57.93

57.83

57.92

58.01

58.04

57.67

57.46

57.42

57.12

57.41

57.53

57.77

57.73

57.64

57.91

58.20

58.14

58.00

58.20

Jan.

58.31

58.01

57.45

57.09

57.09

57.18

57.22

57.63

58.00

58.14

58.24

58.39

58.46

58.61

58.82

59.57

60.18

60.15

60.15

60.21

60.43

60.72

61.26

61.38

61.04

60.76

60.51

60.27

60.09

60.00

59.97

59.20

Feb.

59.96

59.97

59.96

60.07

60.15

BO. 35

60.39

60.39

60.33

60.31

60.29

60.23

60.22

60.20

60.21

60.30

60.37

60.41

60.46

60.40

60.36

60.24

60.13

60.09

60.09

60.17

60.34

60.49

_

-

60.25

Mar.

60.42

60.29

60.22

60.37

61.26

61.93

61.94

61.68

61.28

60.78

60.34

59.97

59.81

59.80

59.77

59.66

59.64

59.58

59.20

58.94

58.89

58.88

58.84

58.70

58.66

58.62

58.60

58.52

58.51

58.46

58.44

59.74

Apr.

S8.78

59.68

59.76

59.65

59.52

59.48

59.51

59.63

59.59

59.59

59.58

59.68

60.17

60.82

61.46

61.83

62.57

62.82

62.53

62.38

62.62

62.96

62.88

62.51

62.21

61.98

61.77

61.61

61.36

61.21

-

61.00

May

61.25

61.41

61.59

61.58

61.56

61.52

61.63

61.92

62.35

63.05

64.09

65.48

67.32

69.68

71.42

71.89

71.60

70.72

69.26

67.52

66.60

66.87

68.06

68.43

67.80

67.59

68.41

69.78

70.68

70.41

69.48

66.48

June

68.68

68.25

67.98

68.34

69.58

71.05

71.56

70.68

68.94

67.54

67.50

.69.24

72.04

73.98

75.08

75.68

76.08

76.60

77.01

77.39

77.54

78.03

78.11

77.85

76.98

75.38

73.66

72.55

72.11

72.17

-

72.92

July

72.60

72.90

72.72

72.08

71.30

70.58

70.05

69.54

68.94

68.29

67.58

66.86

66.01

65.13

64.59

64.53

64.29

63.87

63.52

63.40

63.30

63.11

62.85

62.66

62.50

62.38

62.35

62.31

62.23

62.13

61.92

66.02

Aug.

61.70

61.40

61.21

61.10

61.07

60.97

60.79

60.65

60.56

60.48

60.40

60.34

60.33

60.28

60.17

60.18

60.30

60.71

60.60

60.30

60.12

59.90

59.91

59.93

60.15

60.30

60.20

60.02

59.88

59.78

59.69

60.43

Sept.

59.59

59.49

59.38

59.32

59.30

59.29

59.25

59.17

59.08

58.98

58.89

58.84

58.79

58.71

58.66

58.59

58.51

58.49

58.46

58.41

58.36

58.32

58.31

58.29

58.25

58.29

58.37

58.46

58.47

58.42

-

58.76

Note.--Add 1,700 feet to obtain elevation above mean sea level. Fragmentary or no recorder record 

Oct. 20 to Nov. 8, May 5-12; gage heights computed on basis of discharge determined from records for 

stations upstream and downstream.
KOOTENAI RIVER BASIN 203

Kootenai River at Bonners Ferry, Idaho

Location --Wire-weight gage, lat. 48°42'00", long. 116°18'45", in NEij ses. 27, T. 62 N., 

H. 1 K., on highway bridge at Bormers Perry. Water-stage recorder 800 feet across 

channel from wire-weight gage at same datum used as supplemental gage during high 

stages. autigub. Datum uciuumof ui gage £,&£,«is 1,743.00 j.,^4o.uu feet is caboveuu mean- sea aya.level^i (U. v u S. *- Coast & Geodetic

Survey datum); gage readings have been reduced to elevations above sea level.

Drainage area.--13 ,000 square miles.

Records available.--October 1927 to September 1950 (gage heights only prior to March 1928). 

May to uctooer 1904 (gage heights only) at site three-quarters of a mile downstream. 

Gage heights collected by U. S. Weather Bureau May 1904 to September 1927.

Average discharge. 22 years (1928-50), 13,830 second-feet.

Extremes.--Maximum daily discharge during year, 90,100 second-feet June 22, 23; maximum 

elevation, 1,776.98 feet June 24; minimum daily discharge, 2,400 secoid-feet Jan. 15, 

16; minimum elevation observed, 1,743.79 feet Apr. 1.

1927-50: Maximum discharge, 139,000 second-feet May 27, 1948 (affected by dike 

breakage downstream); maximum-elevation, 1,778.32 feet May 28, 1948; minimum daily 

discharge, 1,300 second-feet Feb. 8, 1936; minimum elevation, 1,741.14 feet Dec. 5, 

1929, Dec. 29, 1930.

Flood of June 1894 reached a stage of 1,777.2 feet.

Remarks. Records excellent except those for periods of ice effect, which are fair. Baekwater from Kootenay Lake usually present at Bonners Ferry. Discharge for periods of 

backwater at Boom Camp from Kootenay Lake, May 13 to July 20, compute-! on basis of fall 

between gages at Boom Camp and near Bonners Ferry; that for remainder of year on basis 

of stage-discharge relation for station at Boom Camp. Discharge measurements made at 

station near Bonners Ferry. Dikes of drainage district numbers 2, 9, 12, 14, and of 

Spurling, Casey, and Smith Creek tracts in Kootenai Valley in United States broke during period June 19-24, affecting discharge and elevations at high staees. No diversion 

or regulation above station.

Elevation, In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Mean

Oct.

48.55

48.61

48.58

48.64

f48.71

48.69

f48.74

48.65

48.62

48.60

48.57

48.55

48.51

48.45

f 48 . 40

48.38

48.39

f48.29

f48.25

48.18

T48.14

f48.10

48.05

48.04

47.97

47.95

47.94

48.07

48.56

48.44

48.39

48.39

Nov.

48.30

48.31

48.26

48.25

48.24

48.26

f48.20

48.14

48.16

48.19

48.20

48.30

48.65

48.79

48.76

f48.75

48.70

48.59

48.58

48.55

48.46

48.36

48.38

48.40

48.46

48.57

f50.49

51.43

51.18

50.79

-

48.76

Dec.

50.28

50.01

49.72

49.46

49.42

49.14

49.06

48.96

48.94

48.96

49.17

49.21

49.06

48.98

49.02

49.08

49.11

49.04

48.98

48.96

48.87

48.76

48.74

48.70

48.76

48.78

48.72

48.70

48.71

48.72

48.74

49.06

Jan.

48.76

48.77

48.80

48.81

48.86

48.93

48.92

48.97

49.03

49.12

49.19

49.26

49.22

49.18

49.21

49.10

48.98

48.87

48.74

48.36

47.78

48.01

48.66

48.71

48.68

48.60

48.56

48.48

48.36

48.28

48.16

48.75

Feb.

48.04

47.80

47.71

47.69

47.44

47.21

47.14

47.10

47.04

46.98

46.93

46.80

46.68

46.60

46.50

46.45

46.50

46.57

46.53

46.50

46.38

46.32

46.18

46.13

46.04

45.98

46.06

46.17

,

_

-

46.77

Mar.

46.32

46.28

46.30

46.34

47.41

48.69

48.76

48.54

48.11

47.36

46.54

46.21

45.92

45.76

45.84

45.44

45.50

45.88

45.89

45.58

45.56

45.16

44.94

44.66

44.50

44.35

44.18

44.13

44.02

43.96

43.86

45.87

Apr.'

43.79

45,32

45.88

45.74

45.59

45.43

45.40

45.54

45.48

45.56

45.49

45.62

46.13

47.36

48,62

49.62

f51.20

52.33

52.10

51.70

51.98

52.66

52.90

52.30

51.63

51.10

50.70

50.07

49.94

49.49

-

48.56

May

49.39

49.69

50.02

50.17

50.03

49.93

49.99

50.41

51.11

f52.28

54.46

57.39

61.54

65.49

68.44

69.40

69.21

68.31

66.59

64.43

62.56

62.53

64.12

64.92

64.36

63.99

64.87

66.53

67.77

67.81

66.76

60.15

June

65.83

65.18

64.82

65.16

66.54

68.34

69.17

68.42

66.59

64.69

64.12

65.88

69.08

71.49

72.93

73.79

74.31

74.91

75.40

75.79

76.02

76.63

76.76

76.60

75.68

74.08

72.23

70.96

70.38

70.32

-

70.74

July

70.67

71.00

70.87

70.25

69.45

68.66

68.04

67.44

66.77

66.03

65.24

64.32

63.16

61.91

60.91

60.50

59.72

59.11

58.33

57.88

57.49

57.00

56.39

55.78

55.29

54.85

54.55

54.32

54.09

53.82

53.35

61.52

Aug.

52.75

52.11

51.53

51.20

50.95

50.65

50.20

49.98

49.79

49.36

49.38

49.41

49.52

49.48

49.53

49.84

50.14

50.70

50.90

50.46

50.24

49.87

49.82

49.88

50.06

50.35

50.31

50.13

49.93

49.79

49.69

50.26

Sept.

49.54

49.45

49.34

49.24

49.22

49.24

49.21

49.18

49.13

49.09

48.95

48.92

48.96

48.91

48.89

48.83

48.81

48.79

48.82

48.81

48.77

48.71

48.72

48.67

48.61

f48.66

48.76

48.78

48.89

48.79

-

48.96

f Gage height computed on basis of wire-weight reading or partial recorder record and records for 

station near Bonners Perry.

Note. Add 1,700 feet to obtain elevation above mean sea level. Gage heights are from once-daily 

wire-weight gage readings except May 1-9, when gage was read twice daily, and Nov. 27-29, May 10 to 

Aug. 5, when mean daily stages are computed from recorder record adjusted to basis of wire-weight 

gage.
204 KOOTENAI RIVER BASIN

Discharge, in second-feet, of Kootenai River at Bonners Fe 

water year October 1949 to September 1950

ry, Idaho,

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct

5,090

5,040

5,060

5,110

5,530

5,730

5,930

5,760

5,600

5,600

5,390

5,ZZO

5,250

5,180

5,090

4,970

4,970

4,810

4,840

4,640

4,630

4,530

4,420

4,400

4,350

4,420

4,370

4,640

6,260

6,210

6,010

Nov.

5,600

5,400

5,230

5,070

4,950

4,860

4,790

4,790

4,840

4,840

4,970

5,270

6,210

6,560

6,390

6,240

5,900

5,660

5,480

5,340

*5,180

4,930

5,000

4,950

5,200

5,880

10,600

13,900

13,200

11,700

-

Dec.

10,400

9,800

9,350

8,740

8,170

7,560

7,100

6,530

6,180

5,700

5,100

4,600

4,530

4,400

4,500

4,600

5,000

5,000

4,100

3,800

3,500

3,190

3,740

3,980

4,200

4,100

4,310

4,900

5,580

5,440

5,110

Jan.

5,000

4,100

3,200

3,000

2,900

3,000

3,000

3,200

3,900

4,000

4,000

4,000

3,300

2,800

2,400

2,400

2,500

2,700

2,800

3,300

4,200

4,900

6,000

5,300

5,100

4,700

4,200

4,000

3,800

3,600

3,400

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb

3,300

3,200

3,400

3,700

4,000

4,300

4,400

4,500

4,400

4,300

4,200

4,100

4,100

4,200

4,300

4,400

4,450

*4,450

4,600

4,800

4,900

4,950

4,950

5,050

5,150

5,350

5,750

5,950

-

-

-

Secondfoot-days

159,050

188,930

173,210

4,705,650

114,700

125,150

225,680

463,200

1,297,800

2,047,400

1,133,100

391,300

204,020

6,523,540

Mar.

6,200

6,100

6,000

6,600

11,700

11,900

11,000

9,500

8,500

7,600

6,800

6,400

6,000

5,800

5,700

5,700

6,200

7,000

7,600

7,700

7,560

7,530

7,410

7,020

6,910

6,800

*6,740

6,530

6,500

6,370

6,310

Maximum

6, 26C

13, 90C

10,400

81,700

6,000

11,' 900

24,000

68,800

90,100

66,300

18, 20C

9,380

90,100

Apr.

7,240

10,000

10,300

9,900

9,470

9,350

9,440

9,830

9,700

9,700

9,670

10,000

11,700

14, 100

16,800

18,600

22,100

23,300

21,900

21,100

22,300

24,000

23,600

21,800

20, 300

19,300

18,300

17,400

16,300

15,700

-

May

15,900

16,600

17,300

17,300

17,200

17,000

17,500

18,500

20,500

24,000

30,000

38,800

50,800

62,400

68,800

67,800

64,900

60,000

53,300

45, 300

42,400

44, 900

50,900

51,700

47,900

47,200

52,100

59,200

63,100

59 , 800

54,700

Minimum

4,350

4,790

3,190

2,900

2,400

3 1 200

5,700

7 240

15*900

44,700

9 1 700

5,390

2,400

June

51,100

49,500

48,200

50,600

57,600

64,900

65,700

59,300

50,300

44, 700

46,700

57,100

72,600

80, 600

81,600

81,800

81,300

83,100

84,000

85,100

87,700

90,100

90,100

86,000

81,300

69,800

65,300

59,300

60,000

62,000

-

Mean

5,131

6, 298

5,587

12,890

3,700

4,470

7 1 £80

15,440

41,860

68, 250

36, 550

12, 620

6,801

17,870

July

65,200

66,300

64, 500

60,900

57,300

54,200

52,800

50,600

47,900

45,200

42,300

39,300

35,800

32,300

30,400

30,800

29,900

28,300

27,000

26,800

26, 400

25,300

24,000

23,000

22,200

21,600

21,400

21,200

20,800

20, 200

19,200

Per

square 

mile

0.395

.484

.430

.992

. 285

.344

.560

1.19

3. 22

5 25

2. 81

971

!523

1.37

Aug.

18,

16,

16,

15,

200

800

000

500

15,300

14,900

14,

13,

13,

100

BOO

200

12,800

12,500

12,

12,

H>

200

200

900

11,500

11,600

12,

13,

13,

DOO

500

100

11,900

11,300

10,

10,

10,

500

500

300

11,300

11,900

11,

10,

10,

10, (

500

300

too

)00

9,700

Sept.

9,380

9,030

8,680

8,470

8,410

8,350

8,230

7,960

7,700

7,380

7,130

6,960

6,830

6,610

6,480

6,290

6,060

6,000

5,930

5,800

5,680

5,560

5,530

5,480

5,390

5,480

5,660

5,880

5,900

5,780

Runoff

Inchis

0.46

.54

.50

13.47

.33

!es

1.33

3.71

5 . 86

3 24-

l!l2

.58

18.68

Acre-feet

315,500

374, 700

343,600

9,334,000

227, 500

248, 200

447,600

918, 700

2,574,000

4,061,000 

2, 247,000

776,100 

404, 700

12,940,000
KOOTENAI RIVER BASIN 205

Kootenai River near Bonners Ferry, Idaho

Location.--Water-stage recorder, lat. 48°41'55", long. 116°20'40", in NW^ sec. 28, T. 62

 N., H. 1 E., 1.6 miles downstream from highway bridge at Bonners Ferry. Datum of gage 

is 1,700.00 feet above mean sea level (U. S. Coast and Geodetic Survey datum); gage 

readings have been reduced to elevations above mean sea level.

Drainage area.--13,OOP square miles.

Records available.--May 1928 to September 1950.

Extremes. Maximum elevation during year, 1,776.30 feet June 23, 24; minimum.. 1,742.69

1928-50: 'Maximum elevation, 1,776.84 feet May 28, 1948; minimum, 1,740.16 feet 

Mar. 29, 1944.

Remarks. Elevations affected by backwater from Kootenay Lake. Dikes of drainage dis-

 ErTcts numbers 2, 9, 12, 14, and of Spurling, Casey, and Smith Creek tracts in United 

States broke during period June 19-24, affecting elevations at high stages.

Elevation, In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Mean

Oct.

48.49

48.58

48.57

48.56

48.70

48.64

48.72

48.62

48.52

48.56

48.44

48.46

48.46

48.39

48.36

48.36

48.38

48.24

48.22

48.17

48.12

48.08

48.02

48.02

47.95

47.92

47.90

48.04

48.40

48.38

48.34

48.34

Nov.

48.28

48.24

48.21

48.20

48.20

48.17

48.16

48.08

48.12

48.14

48.13

48.28

48.58

48.69

48.71

48.71

48.63

48.54

48.52

48.46

48.41

48.31

48.34

48.33

48.36

48.46

49.79

51.20

50.96

50.50

-

48. 66 1

Dec.

50.00

49.71

49.55

49.29

49.24

49.03

48.95

48.86

48.81

48.84

48.65

48.58

48.50

48.46

48.44

48.54

48.57

48.60

48.48

48.25

48.14

48.07

48.08

48.18

48.08

48.08

48.10

48.25

48.37

48.36

48.26

48.62

Jan.

48.15

48.09

47.80

47.70

47.54

47.52

47.50

47.55

47.58

47.58

47.57

47.62

47.54

47.28

47.16

47.05

46.98

f46.94

f46.88

46.88

46.90

47.05

47.54

47.76

47.54

47.31

47.15

46.97

46.80

f46.70

f46.59

47.33

Feb.

f46.51

f46.46

T46.42

f46.41

f46.43

f46.4i

f46.41

46.37

46.33

46.24

46.17

46.06

45.94

45.86

45.76

45.79

45.79

45.80

45.76

45.72

45.64

45.54

45.44

45.38

45.34

45.35

45.54

45.74

_

-

45.95

Mar.

45.68

45.56

45.41

45.62

46.57

47.56

47.78

47.30

46.77

46.08

45.36

44.87

44.67

44.53

44.45

44.32

44.54

44.93

45.14

44.86

44.58

44.38

44.14

43.76

43.54

43.32

43.18

43.00

42.93

42.82

42.73

44.85

Apr.

43.08

44.48

44.90

44.72

44.52

44.31

44.38

44.53

44.49

44.51

44.49

44.64

45.43

46.79

48.13

49.13

50.65

51.69

51.48

51.10

51.38

52.10

52.34

51.73

51.07

50.53

50.10

49.80

49.29

48.89

47.82

May

48.86

49.13

49.54

49.59

49.42

49.35

49.44

49.84

50.55

51.74

53.97

57.09

60.88

64.80

67.69

68.72

68.59

67.68

65.96

63.76

62.06

61.93

63.50

64.36

63.80

63.44

64.51

65.98

67.22

67.24

66.28

59.57

June

65.34

64.70

64.34

64.66

65.98

67.76

68.56

67.86

66.06

64.25

63.65

65.36

68.53

70.88

72.39

73.20

73.74

74.34

74.80

75.21

75.45

75.96

76.08

75.93

75.08

73.64

71.73

70.60

69.93

69.86

-

70.20

Jul-'

70.19

70.51

70.41

69.82

69.03

68.26

67.59

67.03

66.40

65.66

64.86

63.96

62.85

61.57

60.51

60.02

59.55

58.74

58.02

57.56

57.17

56.69

56.07

55.48

54.98

54.54

54.22

54.00

53.78

53.52

53.04

61.16

Aug.

52.46

51.82

51.23

50.90

50.62

50.26

49.88

49.46

49.22

49.08

49.06

49.07

49.14

49.23

49.31

49.60

49.92

50.48

50.57

50.21

49.93

49.67

49.66

49.71

49.88

50.10

50.07

49.90

49.71

49.59

49.49

49.98

Sept.

49.34

49.25

49.15

49.03

49.04

49.03

49.10

49.05

49.02

48.93

48.83

48.84

48.84

48.82

48.81

48.76

48.74

48.73

48.74

48.75

48.71

48.66

48.63

48.59

48.56

48.61

48.72

48.75

48.81

48.73

-

48.85

f Elevation partly estimated.

Ncte.--A<ld 1,700 feet to obtain elevation a"bo mean sea level.
306 KOOTENAI RIVER BASIN

Kootenai River at Klockmann Ranch, near Bonners Ferry, Idaho

Location. Water-stage recorder, lat. 48°47'40", long. 116°22'50", in SE^ se?. 19, T. 63 

NT, R. IE., at Klockmann Ranch, 800 feet south of viaduct on Kootenai Valley branch 

of Great Northern Railway and 8 miles north of Bonners Ferry. Datum of gage is 

1,700.00 feet above mean sea level (U. S. Coast and Geodetic Survey datum); gage readings have been reduced to elevations above mean sea level.

Records available.--May 1928 to September 1950.

Extremes.--Maximum elevation during year, 1,773.40 feet June 24; minimum, 1,741.72 feet Mar~31.

1988-50: Maximum elevation, 1,773.82 feet May 28, 1948; minimum, 1,733.76 feet 

Apr. 1, 1944.

Remarks. Elevations affected by backwater from Kootenay Lake. Dikes of drainage districts

 numbers 2, 9, 12, 14, and of Spurling, Casey, and Smith Creek tracts in Kootenai Valley 

in United States broke during period June 19-24 affecting elevations at high stages.

Elevation, In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Mean

Oct.

48.26

48.32

48.32

48.32

43.44

46.37

48.42

48.35

48.29

48.31

48.22

48.23

48.22

48.18

48.16

48.13

48.14

48.01

48.01

47.95

47.92

47.88

47.84

47.82

47.77

47.73

47.72

47.32

48.10

48.08

43.05

4S.11

Nov.

48.02

48.00

47.98

47. S9

47.97

47.95

47.94

47.90

47.92

47.95

47.94

48.09

48.29

48.38

48.42

48.42

48.35

48.30

48.29

48.23

48.19

48.12

48.13

48.12

48.14

48.21

49.32

50.42

50.20

49.83

-

48.37

Dec.

49.46

49.21

49.03

48.83

48.74

48.66

48.61

48.55

48.52

48.54

48.36

48.33

48.28

48.24

48.21

48.25

48.28

48.31

48.24

48.05

47.94

47.87

47.87

47.96

47.86

47.85

47.87

47.98

48.04

48.05

47.97

48.32

Jan.

47.88

47.86

47.62

47.52

47.37

47.34

47.32

47.34

47.33

47.29

47.28

47.33

47.25

47.05

f46.91

a46.89

846 . 84

846.77

a46.68

a46.66

f46.64

46.68

47.00

f47.14

a47.06

846.92

846.81

- 846.71

a46.57

846.05

846.41

47.06

Feb.

846.30

a46.23

a46.14

846.10

a46.09

f46.03

46.00

45.93

45.90

45.81

45.72

45.61

45.50

45.43

45.34

45.34

45.33

45.29

45.23

45.19

45.12

45.01

44.92

44.85

44.80

44.78

44.89

45.02

_

-

45.50

Mar.

44.95

44.84

44.71

44.80

45.49

46.26

46.45

46.06

45.58

44.96

44.34

43.96

43.76

43.66

43.55

43.45

43.61

43.90

44.09

43.94

43.68

43.44

43.19

42.86

42.64

42.44

42.29

42.08

41.98

41,91

41.78

43.89

Apr.

41.97

43.00

43.50

43.37

43.20

43.02

43.05

43.17

43.16

43.15

43.12

43.22

43.82

45.00

46.22

47.22

48.60

49.72

49.62

49.24

49.45

50.11

50.39

49.92

49.30

48.82

48.42

48.14

47.69

47.32

-

46.20

May

47.25

47.46

47.80

47.91

47.81

47.72

47.75

48.10

48.72

49.77

51.76

54.79

58.33

62.01

64.84

66.00

66.02

65.30

63.78

61.76

60.20

60.07

61.45

62.31

61.85

61.52

62.30

63.74

64.89

65.05

64.26

57.50

June

63.41

62.84

62.52

62.76

63.91

65.48

66.23

65.77

64.24

62.55

61.91

63.33

66.03

68.16

69.61

70.49

71.05

71.62

72.11

72.38

72.76

72.93

72.98

73.06

72.62

71.51

70.12

68.92

68.26

68.05

-

67.92

July

68.27

68.52

68.47

67.99

67.32

66.62

66.00

65.44

64.84

64.16

63.40

62.57

61.57

60.43

59.48

58.97

58.51

57.67

56.94

56.46

56.01

55.54

54.96

54.39

53.89

53.47

53.14

52.87

52.64

52.36

51.93

59.83

Aug.

51.40

50.76

50.24

49.86

49.56

49.22

48.86

48.48

48.21

48.05

48.08

48.22

48.31

48.44

48.58

48.90

49.22

49.69

49.77

49.48

49.27

49.05

49.06

49.11

49.23

49.39

49.37

49.25

49.09

49.00

48.92

49.16

Sept.

48.80

48.73

48.65

48.55

48.56

48.55

48.62

48.60

48.58

48.51

48.43

48.46

48.48

48.48

48.47

48.43

48.42

48.43

48.44

48.45

48.43

48.39

48.36

48.33

48.33

48.39

48.46

48.48

48.52

48.44

-

48.49

_ Elevation computed on basis of other stations on Kootenai River

f Elevation partly estimated.

Note.--Add 1,700 feet to obtain elevation above mean sea level.
KOOTENAI RIVER BASIN 207

Kootenai River near Copeland, Idaho 

(International gaging station)

Location.--Water-stags recorder, lat. 48°54'45", long. 116°25'00", in NW-jNW^SWij sec. 12,

 T. 64 N., R, 1 W., at Andrews Ranch, three-quarters of a mile downstream from Mission 

Creek and If miles northwest of Copeland. Datum of gage is 1,700.00 fest above mean 

sea level referred to bench mark T 10 1914, elevation, 1,791.49 feet (datum of 19S9, 

supplementary adjustment of 1947, is about 0.04 feet higher).

Drainage area.--13 ,400 square miles.

Records available. October 1927 to September 1950 (gage-height record only prior to May

 1929) in reports of Geological Survey. April 1925 to September 1327 (gage heights 

only) in reports of Department of Resources and Development, Canada.

Average discharge.--21 years, 14,390 second-feet.

Extremes.--Maximum daily discharge during year, 90,800 second-feet June 24; maximum ele-

 vat ion, 1,769.95 feet June 24; minimum daily discharge, 2,600 second-feet Jan. 15, 16, 

during period of ice effect; minimum elevation, 1,740.86 feet Mar. 31.

1929-50: Maximum daily discharge, 124,000 second-feet May 30, 1948; maximum elevation, 1,770.10 feet May 31, 1948; minimum daily discharge, 1,350 second-feet Feb. 8, 

1936; minimum elevation, 1,738.52 feet Apr. 2, 3, 1944.

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

 Dikes of drainage districts numbers 2, 9, 12, 14, and of Spurling, Casey, and Smith

Creek tracts in Kootenai Valley in United States broke during period June 19-24, affecting elevations and discharge at high stages. Discharge computed from fall-mean stagedischarge relations determined on basis of fall in reach between stations at Klockmann 

Ranch and at Porthill and discharge measurements made at station near Copeland. Stagedischarge relation affected by backwater from Kootenay Lake.

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

united Btates under agreement with Canada.

Elevation, In feet, water jear October 1949 to September 195O

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

Mean

Oct.

48.13

48.21

48.20

48.19

48.25

48.20

48.22

48.17

48.12

4B.14

48.07

48.08

48.06

48.02

48.01

4B.OO

47.96

47,85

47.86

47.84

47.78

47.75

47.73

47.73

47.67

47.63

47.62

47.73

47. B6

47.86

47.86

47.96

Nov.

47.85

47.84

47.83

47.83

47.88

47.83

47.82

47.79

47.80

47. B3

47,82

47.93

48.10

4B.16

48.21

48.22

48.18

48.14

48.14

48.10

48.05

47.98

48.01

48.00

48.02

48.07

48.77

49.57

49.35

49.17

-

48.14

Dec.

48.94

48.75

48.58

48.44

Jan.

47.73

47.72

47.53

47.43

48.39 47.32

48.36

48.35

48.33

48.32

48.32

48.21

48.20

48.14

48.11

48.06

48.11

48.11

4B.13

48.12

47.96

47.86

47.81

47.79

47.85

47.75

47.73

47.75

47.80

47.81

47.83

47.76

48.12

47.27

47.24

47.23

47.20

47,14

47.12

47.15

47.06

46.91

46.83

46.74

46.67

46.60

46.54

46.50

46.56

46.56

46.64

46.72

46.67

46.56

46.48

46.38

46.26

46.18

46.08

46.87

Feb.

46.00

45.94

45.87

45.83

45.81

45.78

45.75

45.70

45.67

45.57

45.48

45.37

45.26

45.20

45.09

45.05

45.00

44.94

44.86

44.80

44.70

44.62

44.53

44.47

44.40

44.33

44.39

44.44

-

-

-

45.17

Mar.

44.36

44.25

44.14

44.14

44.49

44.96

45.05

44.76

44.36

43.87

43.45

43.12

42.96

42.85

42.75

42.65

42.72

42.81

42.89

42.81

42.64

42.45

42.23

41.92

41.71

41.50

41.34

41.19

41.09

41.00

40.90

42.95

Apr.

41.01

41.52

41.87

41.80

41.69

41.52

41.52

41.59

41.59

41.58

41,55

41.63

42.04

42.88

43.87

44.74

45. B9

46.94

47.00

46.72

46.92

47.48

47.77

47.45

46.96

46.61

46.28

46.05

45.72

45.43

44.19

May

45.36

45.51

45.75

45.86

45.80

45.73

45.78

46.04

46.51

47.30

49.09

51.62

54.80

57.79

60.45

61.65

61.85

61.42

60.31

58.72

57.39

57.21

5B.23

58.99

58.76

58.51

59.10

60.32

61.30

61.57

61.04

54.51

 

June

60.36

59.89

59.60

59.81

60.71

61.89

62.65

62.49

61.37

59.98

59.36

60.32

62.50

64.21

65.63

66.49

67.18

67.77

6B.33

68.73

69,28

69.46

69.51

69.41

69.36

68.55

67.32

66.23

65.56

65.32

64.64

July

65.39

65.56

65.54

65.20

64.59

64.00

63.43

62.92

62.40

61.82

61.17

60.45

59.61

58.68

57.79

57.26

56.74

56.02

55.33

54.85

54.42

53.93

53.43

52.91

52.44

52.03

51.68

51.40

51.17

50.91

50.53

57.86

Aug.

50.07

49.53

49.05

48.69

48.38

48.03

47.71

47.39

47.13

46.99

47.13

47.31

47.45

47.63

47.84

48.20

48.51

48.83

48.93

48.75

.48.58

48.44

4B.49

48.52

48.60

48.70

48.70

48.63

48.53

48.47

48.43

48.31

Sept.

48.34

4B.29

48.25

48.17

48.20

48.21

48.26

48.25

48.25

48.21

48.15

48.20

48.22

48.23

48.23

4B.20

48.21

48.22

48.24

48.25

48.22

48.20

48.17

48.14

48.16

48.21

48.26

48.29

48.32

48.25

-

48.23
208 KOOTENAI RIVER BASIN

Discharge, In second-feet, of Kootenal River near Copeland, Idaho, 

water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5,160

5,060

5,080

5,240

5; 510

5,560

5,920

5,650

5,640

5,650

5.E50

5,260

5,250

5,320

5,220

5,100

e5,300

5,240

4,980

4,720

4,780

4,680

4,590

4,380

4,470

4,540

4,750

4,940

6,300

6,170

5,930

Nov.

5,630

5,450

5,230

5,280

5,030

4,870

4,780

4,, 840

4,850

4,940

5,070

5,630

6,420

6,670

6', 600

6,600

6,150

6,130

5,890

5,690

5,6EO

5,520

5,410

5,410

5,530

5,340

10,500

14,600

14,000

12,100

_

Dec,

10,900

10,000

9,790

9,080

8,390

7,780

7,280

*6,850

6,340

6,450

5,690

4,910

4,860

4,700

4,780

4,780

5,220

5,210

4,370

4.EOO

3,800

3,450

3,960

4,130

4,510

4,340

4,560

5,130

5,840

5,740

5,480

Jan.

5,300

4,320

3,570

3,230

3,160

3,180

3,180

3,330

4,050

4,180

4,170

4,120

3,520

3,100

2,600

2,600

2,680

2,850

2,970

3,450

4,370

5,000

5,900

5,340

5,360

4,960

4,410

4,230

4,030

3,790

3,590

Month

October ... ...................

November ......................

December ......................

Calendar year 1949 .........

January .... ..................

February ......................

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

April .........................

May ...........................

June ..........................

July ..........................

August .... ........ ..........

September ..................

Water year 1949-50 ..........

Feb.

3,480

3,360

3,580

3,840

4,140

4,440

4,570

4,690

4,580

4,520

4,410

4,320

4,340

4,400

4,550

4,590

*4,690

4,700

4,860

5,060

5,180

5,230

5,240

5.3EO

5,430

5,640

5,960

6,150

_

.

Secondfoot days

161,640

196,330

182,520

4,849,930

120,540

131,270

241,710

436,920

1,355,500

2,1E2,100

1 205 500

398, 650

208,130

6,810,810

Mar.

6,580

6,520

6,410

6,960

10,500

11,800

11,800

10,500

9,500

8,550

7,750

7,150

6,550

6.3EO

6,170

6,220

e,550

7,340

7,990

8,370

8,260

8,200

8,390

7,770

7,560

7,390

7,280

6,950

*6,830

6,830

6,720

Maximum

6,300

14,600

10,900

83,800

5,900

6,150

11,800

25, 10C

72,900

67)80C

9!360

90,800

Apr.

7,320

9,750

10,800

10,600

10,300

9,950

10,000

10,400

10,300

10,300

10,300

10,500

11, 700

14, EDO

16,800

18,800

2E.OOO

24,300

E3,800

22,600

E3,100

E4.700

25,100

23,600

21,900

E0,600

19,600

18,900

17,800

16,900

"

May

16,700

17,300

18,100

18,300

18,100

17,800

17,900

18,800

20,300

22,800

E8,200

37,200

47,300

59,200

69,300

72,900

71,900

68,000

61,000

52,500

46,700

46,300

51,700

54,600

51,900

50,600

53,600

58,900

63,300

63,800

60.500

Minimum

4,380

4,780

3,450

3,000

2,600

3,360

6,170

7,3EO

16,700

47,100

EO.OOO

9,850

5,660

2,600

June

57,600

55,400

54,400

55,000

59,000

64,600

66,EOO

63,500

56,700

49,400

47,100

53,900

65,500

74,100

79,600

82,800

84,000

85,500

86,900

86,700

87,200

87,500

88,200

90,800

88,100

81,100

73,700

68,000

65,200

64,400

July

66,300

67,800

67,300

65,100

61,700

58,400

56,000

54,300

52,300

49,700

46,900

44,200

40,600

36.400

33,800

33.EOO

3E,600

30,300

ES,500

27,300

27,100

E6,300

E5.000

23,800

22,700

EE.100

El, 900

21,700

El, 300

E0.900

20,000 '

Mean

5.E14

6,544

5,888

13,290

3,888

4,688

7,797

16,230

43,730

70,740

38,890

12,860

6,938

18,660

Per

square 

mile

0.389

.488

.439

.99E

.290

.350

.582

1.21

3.26

5.E8

2.90

.960

.518

1.39

Aug.

18,

17,

16,

15,

15,

15,

14,

14,

13,

13,

12,

12,

IE,

11,

11,

11,

11,

13,

13,

12,

11,

10,

10,

10,

11,

11,

11, 11,

10,

10,

9,

900

500

500

800

700

400

700

000

700

200

500

500

EOO

900

600

500

900

400

500

400

700

700

400

700

200

900

700

100

500

100

850

Sept,

9,360

9,140

8,820

3,500

8,360

8.E30

8,260

8,070

7,750

7,520

7,060

6,760

6,940

6,710

6,610

6,500

6,E50

6,150

6,060

6,070

5,960

5,860

5,770

5,750

5,660

5.8EO

5,960

6*030

6, EOO

6,000

_

Runoff

Inches

0.45

.54

.51

13.46

.33

.36

.67

1.35

3.76

5.89

3.35

:.n

.58

IE. 90

Acre-feet

3EO,600

389,400

36E.OOO

9,619,000

E39,100

260,400

479,400

965,800

2,689,000

4,209,000

2,391,000

790,700

412,800

13,510,000

* Winter discharge measurement made on this day.

e Pall in reach as recorded not representative because of wind; discharge computed on basis of 

records for station at Bonners Perry witM allowance for inflow and channel storage.

Note. Channel conveyance affected by ice Dec. 12 to Mar. 22. Gage height estimated or partly 

estimated at Klockmann Ranch Jan. 15-21, Jan. E4 to Peb. 6 and at Porthlll May 29 to June 9.
KOOTENAI RIVER BASIN 209

Kootenai River at Porthill, Idaho 

(International gaging station)

Location.--Water-stage recorder, lat. 49°00'00", long. 116"30'10", in SW£ sec. 8, T. 65 

ft. , H. 1 W., 300 feet south of international boundary at Porthill. Datum of gage is 

1,700.00 feet above mean sea level referred to bench mark "10 M 1928", elevation, 

1,767.68 feet (datum of 1929, supplementary adjustment of 1947, is 0.03 foot higher) 

and 1,699.80 feet above mean sea level (datum of Geodetic Survey of Canada, adjustment 

of 1928). Gage heights have been reduced to elevations above mean sea level, United 

States datum.

Drainage area.--13 ,700 square miles.

Records available.--May to July 1904, October 1927 to April 1928 (gage heights only), and 

April iyaB to September 1950 in reports of Geological Survey. Octobe" 1924 to September 1927 (gage heights only) in reports of Department of Resources ani Development, 

Canada.

Average discharge . 22 years, 14,670 second-feet.

Extremes. Maximum daily discharge during year, 91,600 second-feet June 23; maximum elevat ion, 1,765.44 feet June 24; minimum daily discharge, 2,720 second-feet Jan. 15; minimum elevation, 1,740.38 feet Mar. 31, Apr. 1.

1928-50: Maximum daily discharge, 125,000 second-feet June 1, 1948; maximum elevation, 1,766.16 feet May 31, 1948; minimum daily discharge, 1,380 second-feet, Feb. 8, 

1936; minimum elevation, 1,738.21 feet Apr. 3, 1944. 

Maximum elevation known, 1,772.7 feet in June 1894.

Remarks Records excellent except those for periods of ice and wind effect at Copeland, 

wnicn are fair. Daily discharge represents entire flow passing international boundary, 

computed by adding tributary inflow, including that of Boundary Creek, to flow at 

station near Copeland and correcting for storage change in channel and flooded areas 

between stations near Copeland and at Porthill. Boundary dike of Reclamation Farm and 

0. S. Forest Service roadway dike (south side of boundary Creek) remained intact and 

flow of river was confined throughout year to main channel on which gage and cableway 

are located. Elevations affected by backwater from Kootenay Lake. D.'.kes of drainage 

districts numbers 2, 9, 12, 14, and of Spurling, Casey, and Smith Cre?k tracts in 

Kootenai Valley in United States broke during period June 19-24, affecting elevations 

and discharge at high stages. Records of chemical analyses and water temperatures for 

the water year 1950 are given in Water-Supply Paper 1189.

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

united states under agreement with Canada.

Elevation, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Mean

Oct.

47.92

48.00

47.99

47.97

48.06

47.98

47.99

47.95

47.89

47.91

47.86

47.87

47.86

47.81

47.80

47.78

47.74

47.64

47.67

47.64

47.60

47.57

47.54

47.54

47.48

47.43

47.40

47.48

47.60

47.60

47.60

47.75

Nov.

47.61

47.61

47.61

47.62

47.63

47.63

47.63

47.58

47.60

47.62

47.60

47.69

47.80

47.86

47.91

47.92

47.90

47.85

47.87

47.83

47.80

47.74

47.76

47.75

47.76

47.80

48.33

48.86

48.72

48.64

-

47.85

Dec.

48.45

48.32

48.16

48.05

48.05

48.05

48.06

48.05

48.08

48.09

47.99

47.97

47.93

47.88

47.83

47.88

47.86

47.88

47.90

47.77

47.68

47.65

47.62

47.68

47.56

47.53

47.54

47.58

47.56

47.60

47.54

Jan.

47.52

47.51

47.37

47.28

47.18

47.12

47.10

47.08

47.02

46.95

46.92

46.96

46.88

46.73

46.67

46.59

46.51

46.43

46.35

46.31

46.27

46.24

46.35

46.40

46.37

46.28

46.21

46.13

46.02

45.95

45.85

47.861 46.66

Feb.

45.78

45.70

45.66

45.61

45.58

45.54

45.48

45.45

45.38

45.30

45.20

45 . 10

44.99

44.92

44.82

44.79

44.72

44.66

44.58

44.50

44.40

44.31

44.23

44.18

44.10

44.03

44.06

44.07

_

_

-

44.90

Mar.

43.98

43.86

43.72

43.72

43.90

44.17

44.20

43.97

43.61

43.23

42.87

42.61

42.49

42.39

42.29

42.20

42.22

42.20

42.20

42.10

41.92

41.75

41.60

41.40

41.20

41.01

40.86

40.72

40.64

40.55

40.43

42.39

Apr.

40.45

40.80

41.04

40.95

40.87

40.74

40.75

40.77

40.78

40,78

40.75

40.80

41.10

41.72

42.41

43.11

44.00

44.88

44.97

44.82

44.95

45.40

45.71

45.54

45.24

44.97

44.75

44.59

44.35

44.15

-

42.87

May

44.09

44.19

44.36

44.45

44.39

44.37

44.39

44.58

44.92

45.59

46.85

48.81

51.52

54.20

56.27

57.30

57.56

57.38

56.68

55.62

54.71

54.61

55.37

55.95

55.88

55.73

56.20

57.12

57.87

58.02

57.55

51.82

June

56.94

56.57

56.33

56.56

57.38

58.50

59.30

59.18

58.37

57.46

57.02

57.67

59.14

60.53

61.61

62.34

62.92

63.54

64.00

64.43

64.93

65.14

65.22

65.18

65.14

64.72

63.93

63.21

62.71

62.52

-

61.08

July

62.50

62.54

62.50

62.23

61.85

61.40

60.92

60.47

60.04

59.57

59.06

58.47

57.79

57.07

56.33

55.80

55.33

54.70

54.11

53.75

53.23

52.80

52.32

51.84

51.43

51.03

50.65

50.36

50.15

49.87

49.52

56.12

Aug.

49.12

48.64

48.23

47.90

47.58

47.22

46.94

46.65

46.42

46.33

46.53

46.73

46.89

47.11

47.33

47.72

48.02

48.28

48.36

48.23

48.12

48.04

48.09

48.10

48.15

48.21

48.22

48.19

48.11

48.07

48.03

47.73

Sept.

47.97

47.93

47.89

47.83

47.86

47.86

47.93

47.94

47.96

47.92

47.89

47.96

47.96

47.99

47.99

47.96

47.98

48.00

48.02

48.03

48.02

47.99

47.97

47.94

47.95

47.99

48.05

48.06

48.08

48.02

-

47.96

Mote.--Add 1,700 feet to obtain elevation above mean sea level. Partial or no recorder record May 

29 to June 9; gage heights computed on basis of records for station upstream.
KOOTENAI RIVER BASIN

Discharge in second-feet, of Kootenai River at Porthill, Idaho, 

water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5,220

5,070

5,130

5,330

5,730

5,740

6,020

5,770

5,760

5,730

5,370

5,340

5,350

5,420

5,310

5,180

5,390

5,370

5,030

4,800

4,880

4,760

4,670

4,450

4,580

4,650

4,840

5,360

6,580

6,400

6,120

Nov.

5,800

5,610

5,430

5,420

5,150

5,030

4,920

5,000

4,980

5,060

5,210

5,920

6,720

6,970

6,890

6,860

6,400

6,370

6,100

5,890

5,820

5,740

5,630

5,610

5,860

6,260

12,800

15,300

14,900

12,800

-

Dec.

11,600

10,700

10,400

9,600

9,800

8,170

7,620

7,160

6,660

6,730

6,020

5,200

5,150

4,990

5,070

4,990

5,460

5,410

4,560

4,470

4,030

3,660

4,170

4,350

4,640

4,530

4,750

5,310

6,040

5,900

5,690

Jan.

5,470

4,460

3,780

3,380

3,330

3,320

3,310

3,450

4,190

4,340

4,300

4,220

3,680

3,270

2,720

2,740

2,800

2,970

3,100

3,570

4,460

5,110

5,950

5,410

5,480

5,090

4,530

4,350

4,170

3,910

3,720

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April ....... .................

Uav May ...........................

June ... .... ............. ...

July ...................... ...

August ........................

September .....................

Water year 1949-50 ..........

Feb.

3,600

3,480

3,690

3,940

4,250

4,560

4,690

4,810

4,710

4,660

4,560

4,470

4,500

4,530

4,710

4,730

4,840

4,850

5,020

5,220

5,350

5,400

5,400

5,470

5,580

5,800

6 , 080

6,260

_

-

SecondJfoot-days

165,350

206,450

191, 830

5,016,190

124,580

135,160

248 290

494^120

1,394,000

2,200,000

1,250,400

404,370

210,610

7,025,160

Mar

6,760

6,710

6,610

7 , 150

10,600

11,800

12,000

10,800

9,870

8,940

8,100

7,440

6,760

6,520

6,360

6,420

6,680

7,480

8,120

8,480

8,500

8,450

8,630

8,050

7,810

7,640

7,500

7,160

7,020

7,010

6,920

Maximum

6,580

15,300

11,600

86,800

5,950

6,260

12,000 

25,400

74,100 

91 , 600

19',400

9,500

91,600

Apr.

7,480

9,740

10,800

10,800

10,500

10,200

10,200

10,600

10,500

10,500

10,500

10,700

11,800

14,200

16,700

18,800

21,900

24,200

24,200

23,100

23,500

24,900

25,400

24,100

22,500

21,100

20,100

19,400

18,300

17,400

May

17,200

17,700

18,400

18,700

18,600

18,300

18,300

19,200

20,600

23,200

28,600

37,600

47,400

59,000

69,400

74,100

74,100

70,400

63,600

55,300

49,400

48,700

52,900

55,800

54,000

53,200

55,900

60,500

64,800

65,800

63,300

Minimum

4,450

4,920

3 , 660

3,080

2,720

3,480

6,360 

7,480

17,200

50,300

20,500

9,970

5,710

2,720

June

60,700

58,100

57,300

57,900

61,400

66,200

67,900

65,800

59,700

52,700

50,300

56,200

66,700

75,800

81,300

85,200

86,800

88,300

89,800

90,000

90,300

91,100

91,600

87,100

90,700

84,600

78,000

72,100

68,900

67 , 500

Mean

5,334

6 , 882

' -Loo

13,740

4,019

4,827

8, 009

16,470

44,970

73,330

40,340

13,040

7,020

19,250

July

68,700

69,800

69,400

67,500

64,400

61,200

58,500

56,400

54,400

51,700

48,900

46,100

42,500

38,300

35,500

34,400

33,700

31,500

29,700

28,200

28,000

27,100

25,700

24,500

23,300

22,700

22,400

22,200

21,800

SI, 400

20,500

Per

square 

mile

0.389

.502

4_cp . TT_ll.

1.00

.293

352

!585

1.20

3 . 28

5.35

2.94

.952

.512

1.41

Aug.

19,

18,

16,

16,

16,

15,

15,

14,

U,

13,

12,

12,

12,

11,

11,

11,

11,

13,

13,

12,

11,

10,

10,

10,

11,

12,

11,

11,

10,

10,

9,

400

000

900

200

000

800

000

300

000

400

600

500

300

900

600

500

900

400

600

600

900

900

600

900

300

000

800

200

700

200

970

Sept.

9,500

9,260

8,930

8,620

8,430

8,310

8,310

8,150

7,830

7,610

7,150

6,800

7,000

6,760

6,670

6,580

6,300

6,210

6,110

6,120

6,030

5,930

5,840

5,820

5,710

6,020

6,080

6,130

6,280

6,120

-

Rnnoff

Inches

0.45

.56

.52

13.62

.34

.37

.67

1 34

3* 7R

5 . 97

3 39

1.10

.57

19.06

Acre feet

328,000

409,500

380,500

9,949,000

247,100

268,100

492 500

980^100

2,765,000

4,364,000

2,480,000

802,100

417,700

13,930,000
KOOTENAI RIVER BASIN 211

Kootenay Lake at Kuskonook, British Columbia 

(International gaging station)

Location. Water-stage recorder, lat. 49°18', long. 116°40', on east shore of lake at 

KHsTconook. Datum of gage is 1,735.00 feet above mean sea level, Geodetic Survey of 

Canada, 1928 datum. Gage heights have been reduced to elevations above mean sea level 

referred to U. S. Coast and Geodetic Survey datum, which is 0.20 foot lower than the 

Canadian datura as determined at Porthill, Idaho.

Records available.--April 1936 to September 1950.

Extremes.--Maximum elevation during year, 1,758.70 feet June 25; minimum, 1,739.21 feet

1936-50: Maximum elevation, 1,761.25 feet June 11, 1948; minimum daily, 1,737.83 

feet Apr. 5, 6, 1944.

Remarks.--Elevation is subject to partial regulation by Corra Linn Dam below outlet. Practicaily no diversion or regulation above Kootenay Lake.

Cooperation. This station is one of the international gaging stations maintained by Canaaa under agreement with the United States.

Elevation, in feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

47.71

47.74

47.75

47.74

47.77

47.70

47.68

47.67

47.67

47.64

47.62

47.60

47.58

47.55

47.53

47.50

47.45

47.40

47.38

47.38

47.32

47.32

47.24

47.21

47.17

47.14

47.13

47.16

47.19

47.22

47.30

Nov.

47.33

47.34

47.35

47.36

47.37

47.36

47.37

47.37

47.37

47.38

47.40

47.46

47.51

47.55

47.60

47.63

47.62

47.60

47.61

47.58

47.55

47.50

47.50

47.48

47.51

47.52

47.69

47.82

47.72

47.77

-

Dec.

47.75

47.68

47.51

47.51

47.59

47.66

47.70

47.73

47.75

47.77

47.73

47.72

47.68

47.64

47.62

47.61

47.57

47.60

47.60

47.51

47.46

47.42

47.36

47.33

47.31

47.26

47.25

47.27

47.26

47.26

47.25

Jan.

47.24

47.22

47.16

47.08

46.97

46.90

46.85

46.81

46.74

46.67

46.64

46.60

46.54

46.49

46.42

46.35

46.27

46.20

Feb.

45.52

45.45

45.36

45.28

45.23

45.21

45.16

45.12

45.06

44.98

44.86

44.79

44.69

44.58

44.50

44.43

44.36

44.27

46.13 44.17

46.06 i 44.10

46.01

45.96

45.93

45.91

45.90

45.88

45.82

45.76

45.71

45.63

45.56

43.99

43.91

43.85

43.77

43.69

43.65

43.59

43.52

_

_

-

Mar.

43.42

43.30

43.20

43.12

43.06

43.02

42.87

42.69

42.47

42.26

42.04

41.88

41.81

41.71

41.60

41.53

41.47

41.30

41.20

41.11

40.96

40.83

40.69

40.55

40.40

40.27

40.12

40.01

39.91

39.81

39.65

Apr.

39.54

39.42

39.45

39.43

39.42

39.40

39.40

39.37

39.37

39.30

39.29

39.30

39.34

39.40

39.54

39.73

39.95

40.14

40.40

40.59

40.79

40.98

41.18

41.35

41.48

41.56

41.63

41.65

41.65

41.65

-

May

41.60

41.60

41.61

41.62

41.65

41.68

41.70

41.73

41.78

41.88

42.07

42.43

43.08

43.90

44.86

45.84

46.77

47.54

48.10

48.48

48.67

48.81

48.94

49.15

49.33

49.50

49.70

49.97

50.28

50.55

50.75

June

50.90

50.95

50.99

51.08

51.26

51.50

51.75

51.96

52.07

52.06

52.06

52.17

52.48

53.05

53.64

54.27

54.97

55.64

56.29

56.92

57.55

58.12

58.50

58.66

58.67

58.58

58.39

58.14

57.90

57.74

July

57.60

57.50

57.37

57.25

57.10

56.92

56.72

56.45

56.18

55.89

55.56

55.14

54.70

54.26

53.77

53.28

52.80

52.35

51.90

51.50

51.10

50.70

50.32

49.97

49.61

49.30

48.98

48.68

48.43

48.15

47.86

Aug.

47.52

47.19

46.87

46.56

46.25

45.98

45.70

45.46

45.27

45.35

45.63

45.88

46.14

46.38

46.68

47.06

47.34

47.47

47.49

47.46

47.42

47.41

47.48

47.49

47.49

47.49

47.52

47.51

47.50

47.50

47.48

Sept.

47.46

47.44

47.43

47.43

47.43

47.44

47.49

47.52

47.56

47.57

47.57

47.62

47.66

47.70

47.69

47.69

47.70

47.72

47.75

47.76

47.74

47.73

47.72

47.72

47.72

47.74

47.75

47.77

47.77

47.74

-

Note.--Mean daily elevations for Oct. 23-30, Nov. 22, Dec. 21-24, 26, 27, Jan 3 to Feb. 14, Mar. 19 

computed on basis of records for station at Queens Bay. Add 1,7OO feet to obtain elevation above mean 

sea level.
212 KOOTENAI RIVER BASIN

Fortine Creek near Trego, Mont.

 Location.--Wire-weight gage, lat. 48°39', long. 114°55', in NE^NE-f sec. 11, T. 33 N. , R. 

zt> w., at private bridge, a quarter of a mile upstream from Edna Creek, I mile downstream from Stewart Creek, and 5i miles southwest of Trego.

Drainage area. 111 square miles.

Records available. December 1946 to September 1950.

Ex;tremes.--Maximum discharge during year, 1,810 second-feet May 16 (gage height, 11.8 

reet, from floodmark); minimum observed, 7.5 second-feet Nov. 22; minimum gage height 

observed, 1.07 foot Sept. 9.

1946-50: Maximum discharge, that of May 16, 1950; minimum daily, 5 second-feet Dec. 

5, 1946, to Jan. 7, 1947, Jan. 13-15, 1947, Feb. 11-13, 1948, Sept. 7, 19*9.

Remarks.--Records fair except those for period of ice effect and those for Sept. 10-30, 

wnich are poor. No regulation or diversion above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

10 

10 

10

11

12 

12

11 

11 

12

13 

14 

13 

13 

12

11 

11 

10 

9.2 

9.2

9.6 

10 

10 

10

11

12 

11 

18 

20 

17 

11

Nov.

11 

10 

9.2

8.9 

8.6

8.6 

8.2 

8.6 

9.6 

10

10

13 

14 

20 

17

16 

15 

13 

11 

8.6

7.8 

7.5 

8.6 

8.9

8.6

8.9 

65 

57 

37 

32

Dec.

29 

28 

23 

20

20 

*14 

13 

12

12

12 

12 

12 

12 

12

12 

12 

12 

12 

11

11 

11 

11 

11 

11

11 

12 

13 

15 

14 

13

Jan.

12 

11 

11 

11 

10

10 

11 

12 

12 

12

11 

11 

10 

10 

9.5

9 

9

9.5 

9.5 

10

11 

12 

11 

10 

10

9.5

9.5 

9 

9 

9 

9.5

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

lender year 1945 

ary

1 .........................

ember .....................

tar year 1949-50 ...... ...

Feb

10 

11 

12 

13 

 14

14 

14 

14 

14 

15

15 

16 

17 

18 

18

18 

18 

18 

18

17

16 

15 

16 

17 

18

22 

24 

24

foot-days

364.0

471.6 

450

23,703.5

320 

456 

1,154 

5,061 

17,808 

8,326 

1,556 

607 

331.8

36,905.4

Mar.

23 

23 

28 

38 

43

50 

48 

45 

41 

39

37 

36 

35 

34 

33

34 

38 

40 

41 

40

39 

38 

38 

*37

37

36 

36 

35 

35 

34 

43

Maximum

20 

65 

29

752

12 

24 

50 

420 

1,530 

488 

102 

27 

15

1,530

Apr.

54 

58 

53 

57 

54

47 

45 

48 

49 

49

54

66 

84 

120 

157

190 

246 

292 

270 

*271

356 

420 

369 

296 

274

251 

234 

215 

194 

188

May

203 

203 

207 

197 

198

206 

208 

240 

263 

330

535

761 

al.100 

1,420 

1,420

1,530 

1,040 

804

627 

517

499

568 

661 

554 

464

481 

576 

645 

515 

435 

401

Minimum

9.2

7.5

11

5.0

9 

10 

23 

45 

197 

121 

28 

14 

9

7.5

June

377 

360 

328 

363 

399

386 

338 

293 

245 

220

220 

348 

448 

488 

427

325

267 

240 

217

196

183 

180 

208 

204 

226

232 

194 

159 

134

121

Mean

11.7 

15.7 

14.5

64.9

10.3 

16.3 

37.2 

169 

574 

278 

50.2 

19.6 

11.1

101

July

102 

90 

84 

80 

84

72 

63 

58 

57 

57

52 

50 

46 

45 

54

50 

42 

40 

41 

41

36 

38 

35 

33 

32

31 

29 

29 

29 

28 

28

Per 

square 

mile

0.105 

.141 

.131

.585

.093 

.147 

.335 

1.52 

5.17 

2.50 

.452 

.177 

.100

.910

Aug.

27 

24 

23 

21 

21

21 

21 

20 

20 

20

20 

23 

22 

21 

20

22 

20 

18 

17 

16

16 

16 

21 

22 

20

18 

17 

16 

15 

15 

14

Sept.

13 

13 

13 

13 

15

14

13 

13 

12 

12

12 

10 

11 

10 

10

11 

1111

10 

10

9.6 

9.6 

9.6 

a9.5 

a9.5

a 10 

a9.5 

a9.5 

a9 

a9

Runoff

Inches

0.12

.16 

.15

7.95

.11 

.15 

.39 

1.70 

5.96 

2.79 

.52 

.20 

.11

12.36

Peak discharge (base, 200 sec. -ft .) .--Apr . 22 (11 a.m.) 440 sec. -ft.; May 16 (1 a.m.) 1

Aore-feet

722 

935 

893

47,020

635 

904 

2,290 

10,040 

35,320 

16,510 

3,090 

1,200 

658

73.200

,810 sec.-

june £3 {/ p.m.; zb/ sec.-it.

* Winter discharge measurement made on this day.

a No gage-height record; discharge Interpolated or computed on basis of precipitation records and 

records for nearby streams.

Note.--Stage-discharge relation affected by Ice Dec. 8 to Mar. 30.
KOOTENAI RIVER BASIN " i6 

Lake Creek at Troy, Mont.

Location. - -Water-stage recorder, lat, 48° 26'40", long. 115° 52'30", In SWir sec. 18, T. 31 

B., R. 33 W., a quarter of a mile downstream from power plant, half a mile upstream 

from mouth, and 1-jj miles southeast of Troy.

Drainage area. 211 square miles.

Records available. January 1945 to September 1950.

Extremes.--Maximum discharge during year, 2,470 second-feet June 21 (gage height, 7.42 

1'eet); minimum, 2.8 second-feet Nov. 4 (gage height, 2.91 feet).

1945-50: Maximum discharge, 3,250 second-feet May 30, 1948 (gage height, 8.28 feet); 

minimum, 2.0 second-feet Sept. I, 1947, Sept. 15, 1948.

Remarks.--Records good May 1 to June 22, July 12 to Sept. 30; others poor. Some regula- 

£Ton by small dam at power-plant diversion. Water diverted returns to stream at power 

plant above station. Natural regulation by Bull and Spar Lakes.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

135 

119 

131 

119 

183

218 

195 

175 

127 

191

159 

127 

163 

139 

143

94 

143 

115

97

as

100 

109 

73

as

94

97 

100 

109 

310 

240 

258

Nov.

231 

236 

204 

173 

187

143

147 

147 

131 

123

131 

167 

424 

385 

365

350 

335

310 

310 

272

295 

267 

262 

254 

290

320 

866 

766 

633 

579

Dec.

543 

549 

513 

473 

451

*434 

412 

385 

380 

360

335 

335 

320 

310 

300

295 

280 

285 

310 

a300

a290 

a280 

n315 

a3lO 

a280

h249 

300 

375 

375 

355 

330

Jan.

a320 

h300 

a280 

a270 

a250

b260 

a290 

a320 

h315 

a320

a310 

a290 

b280 

a270 

a240

b230 

a230 

a 340 

a230 

a240

a280 

b280 

b280 

a250 

a240

a240 

b230 

b220 

b200 

b200 

a200

Month ,Sec

Octc 

Nove 

Dece

Cs

Jam 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augi 

Sepl

We

mber . . 

lendar y 

ary

ear 1949 ......

Feb.

a20O 

a210 

a220 

a240 

a260

b270 

a270 

a280 

a280 

a290

a300 

a310 

a330 

a340 

a350

a340 

a340 

a360 

a350 

h340

295 

295 

285 

305 

315

360 

440 

440

ond-

-days

4,439 

9,303 

11,029

179,752

ember .....................

8,095 

8,615 

17,099 

21,775 

37,269 

58,020 

31,158 

10,344 

6,075

ter year 1949-50 ........ . 223,221

Peak discharge (base, 1,000 sec. -ft.). Nc

sec. -ft.} May 15 (9 a.m.) 1,370 sec. -ft. ; Ji

Mar.

424

412 

412 

573 

727

727 

682 

645 

609 

579

561 

513 

a500 

484 

473

495 

543 

621 

633

S27

615 

597 

579 

555 

537

519 

525 

501 

490 

473 

468

Maximum

31C

866 

54S

2,82C

32C 

44C 

727 

938 

1.84C 

2,40C 

1,92C 

454 

255

2.40C

Apr.

639 

701 

675 

639 

627

621 

621 

621 

609 

603

603 

621 

669 

734 

760

805 

938 

924 

*889 

854

868 

889 

861 

812 

772

740 

720 

688 

645 

627

May

615 

609 

585 

561 

543

537 

525 

519 

531 

567

734 

903 

1,230 

1,650 

1,840

1,760 

1,800 

1,680 

1,520 

1,400

1,350 

1,420 

1,560 

1,490 

1,460

1,600 

1,720 

1, 740 

1,680 

1,590 

1,550

Minimum

73 

123 

249

65

200 

200 

412 

603 

519 

1,520 

489 

251 

153

73

June

1,580 

1,570 

1,610 

1,770 

1,940

1,940 

1,810 

1,680 

1,600 

1,520

1,600 

1,890 

2,080 

2,060 

1,980

2,120 

2,230 

2,180 

2,230 

2,280

2,400 

2,350 

2,200 

2,060 

1,990

1,850 

1,840 

1,850 

1,870 

1,940

Mean

143

310 

356

492

261 

308 

552 

726 

1,202 

1,934 

1,005 

334 

202

612

July

1,920 

1,860 

1,800 

1,730 

1,680

1,610 

1,500 

1,370 

1,260 

1,200

1,110 

1,010 

970 

930 

890

866 

818 

780 

765 

765

705 

675 

632 

611 

577

564 

544 

519 

513 

495 

489

Per 

square 

mile

0.678 

1.47 

1.69

2.33

1.24 

1.46 

2.62 

3.44 

5.70 

9.17 

4.76 

1.58 

.957

2.90

Aug

454 

448 

448 

399 

416

399 

360 

382 

372 

360

355 

345 

330 

330 

330

330 

315 

305 

305 

285

295 

285 

305 

305 

295

280 

260 

280 

265 

255 

251

Sept.

251 

227 

212 

223 

255

247 

239 

208 

201 

190

208 

219 

204 

208 

190

177 

153 

208 

198 

198

180 

190

187 

162 

180

190 

208 

208 

180 

174

Runoff

Inches

0.78 

1.64 

1.95

31.68

1.43 

1.52 

3.02 

3.84 

6.57 

10.23 

5.49 

1.82 

1.07

39.36

v. 27 (1 p.m.) 1,390 sec. -ft.} Apr. 17 (9:30 

me 6 (5 a.m.) 2,000 sec. -ft.} June 21 (6 a.m.

Acre-feet

8,800 

18,450 

21,880

356,500

16,060 

17,090 

33,920 

43,190 

73,920 

115,100 

61,800 

20,520 

12,050

442,800

a.m.) 1,090 

) 2,470

sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of temperature records and records for 

Kootenai River at Libby.

b Stage-discharge relation affected by ice.

h Computed from staff-gage reading.
"-"-* KOOTENAI RIVER BASIN

Boulder Creek near Leonia, Idaho

Location.--Water-stage recorder, lat. 48°36', long. 116°06', in NE^ sec. 32, T. 61 N., 

K. 3 E., three-quarters of a mile downstream from McGinty Creek, three-qu?rters of a 

mile upstream from buildings of the Idamont Lead-Zinc Mines Co., 2-f miles upstream 

from mouth, and 2j miles southwest of Leonia. Altitude of gage is 2,600 feet (from 

topographic map).

Drainage area.--53 square miles.

Records available. November 1928 to September 1950. April to September 1928 at site 

1 mile downstream.

Average discharge.--21 years (1939-50), 109 second-feet.

Extremes.--Maximum discharge during year, 1,770 second-feet Nov. 27 (gage height, 6.48 

feet j; minimum, 11 second-feet Oct. 1 (gage height, 2.45 feet).

1928-50: Maximum discharge, 2,700 second-feet Oct. 19, 1947 (gage height, 7.85 

feet), by contracted-opening determination; minimum, 2 second-feet Aug. 25, Sept. 5, 

1931.

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

which are poor. Ho diversion or regulation.

Discharge, In second-feet, water yeir October 1349 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

£3

24

25

26

27

28

29

30

31

Oct

12

12

12

12

48

51

Nov.

30

27

28

Dec .

139

154

128

24 113

23

23

23 21

21 , 21

19

19

18

18

18

18

16

16

15

14

14

13

14

14

14

14

14

14

14

34

63

41

34

23

22

23

146

142

113

97

73

*63

59

56

50

46

45

eo

57

134

193

895

321

207

166

-

Jan

40

35

30

35

104 35

92 ' 36

81

70

70

70

65

60

58

55

55

54

38

40

40

40

40

40

35

32

28

26

52 I 25

50 26

47

45

43

43

43

45

46

46

47

61

54

48

46

30

38

40

45

42

40

35

31

29

25

25

25

25

Month

October . . . ... ..........

November .............. .......

December . ... ..............

Calendar year 1949 ........

January ..... .................

February ........... .... .

March . ........... ... . , .

April ...... ... ....

May .............. .......... .

June ........... . . . . . ....

July .............. .. ......

August ............ ... . ....

September .... ... . . .......

Water year 1949-50 . - . . ....

Feb.

25

25

28

30

33

35

35

35

35

35

35

35

35

35

35

40

45

43

41

*41

41

40

40

41

44

46

58

56

_

_

-

Secondfoot-days

699

3 191

2*084

45,056

1,051

1,067

2, 576

5.865

19,095

17, 189

,311

784

468

57,380

Mar. Apr.

54

52

55

150

170

150

125

110

178

169

134

118

110

110

110

113

May

244

244

237

220

220

204

June

694

662

736

802

826

700

20l! 557

230 445

94 106 294

31

75

70

68

67

63

81

83

108

92

87

83

81

76

74

71

67

67

C3

60

104

108

131

178

214

224

272

321

265

254

279

340

317

258

227

224

201

198

194

1S4

60 214

59

Maximum

94

895

154

1,120

45

58

170

340

1 040

826

272

40

34

1,040

480

706

850

f 1,010

f 1,040

982

928

856

694

530

510

689

898

820

730

724

808

874

814

724

662

672

July

272

240

214

191

182

166

151

134

417 137

475

612

784

748

694

684

736

C84

645

634

64C

618

515

515

382

369

340

352

317

317

309

126

113

99

88

83

78

79

76

69

74

110

88

76

68

ei

57

52

50

45

45

45

42

j Per 

Minimum Mean square 

mxle

12 22 5 0 425

21 106 ' 2^00

43 67.2 1.27

10 123 2.32

25 33.9 .640

25 38 .1 .719

52 83.1 1,57

104 196 3.70

201 611. 11.6

309 573 10.8

42 107 2.02

17 25.3 .477

12 L5.6 .294

12 157 2.96

Aug.

40

36

34

32

31

30

29

Sept.

16

16

16

15

16

16

14

291 15

27 14

27

24

24

23

23

24

27

23

22

21

20

20

19

29

27

26

22

21

20

19

18

17

14

14

14

16

14

14

14

14

14

13

13

13

13

12

12

14

34

25

19

18

16

-

Runoff

Inches Acre-feet

0.49 1,390

2.24 6,330

1.46 4,130

31.62 89,360

.74 2,080

.75 2,120

1.81 5,110

4.12 11,630

13.40 37,870

12.06 34,090

2 . 32 6, 570

.55 1,560

.33 928

4C.27 113,800

Peak discharge (base, 490 sec. -ft . ) . - -Nov. 27 (5 a.m.) 1.770 sec. -ft.: May 13 (8 D.m.V 1.230 sec.-

.. _. . - , - .) 97C sec,-ft ; June 5 (7 p.m.) 922 sec.-ft.; 

June 12 (7-8 p.m.) 916 sec.-ft.

* Winter discharge measurement made on this day.

f Competed from partly-estimated gage-height record.

Note_.--Stage-discharge relation affected by ice Dec. 8-16, 19-26, Jan. 1 to about F?b. 19, Feb. 26 

to Mar. 7, Mar. 11-13. (No gage-height record Jan. 12-14, Jan. 16 to Feb. Id; discharge computed on 

basis of weather reaords and records for other Kootenai Hiver tributaries and other rearbv streams).
KOOTEHAI RIVER BASIN

Moyie River at Eastport, Idaho

Location. --Water-stage recorder, lat. 49°00', long. 11G°11', In SE1 sec. 10, T. 65 E. , R.

Z E. , at Eastport, 1,000 feet downstream from Intel-national boundary. Datum of gage is

'-,,620.06 feet above mean sea level, datum of 19S9, supplementary adjustment of 1947. 

Drainage area. 570 square miles. 

tie cor da available . --August 1929 to September 1950 i-i reports of Geological Survey, January to Teeember 1915, March to December 1916, and discharge measurements daring 1914

an! 1317 in reports of Department of Resources and development, Canada. 

Average discharge . - -HI years, C53 second-feet. 

'axtrei.es . --Maximum iischarge during year, 6,650 second-feet May 15 (gage height, 9.22 feet);

minimum, 7L eeconl-feet Oct. 3, 4 (gage height, 3. £6 feet).

1929-50: Maximum discharge, 8,030 second-feet May 24, 1948 {gage height, 10.25

feet): minimum, 23 second-feet Nov. 7, 1936 {gage height, 3.20 feet). 

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

which are fair. No regulation or diversion above station. 

Cooperation. --This station is one of the international paging stations malrtalned by the

United States under agreement with Panama,

Rating tables, water year 1949-50, except periods or ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 1 to Dec. 31)

3.6

3.7

3.8

Oct. 1 to Jan. 31

86 

140

Feb. 1 to Sept. 30

4.0

4.3 

4.7

205

330

550

3.7

3.8 

4.0

119

143

225

4.3 

4.7 

5.1 

5.5

371

600

890

1,260

6.0 

7.0 

8.0 

9.1

1,790 

3,080 

-4,560 

6,430

Discharge, in second-feet, water year October 1949 to September 19EO

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

77

74

74

81

123

Nov. Dec

109 507

109

115

115

118

1181 318

102 118

94 | 118

34

94

89

91

118

115

115

120

91 149

86; 152

66 j 168

86

34

81

*1E5

5E6

483

449

427

406

359

354

354

335

300

280

270

Jan.

130

160

Feb.

110

110

130 120

140 130

150 140

160 150

160

170

170

180

180

180

160

264 140

260 120

264 ' 110

162 264 110

159 256 110

791 156 C50

81 | 143

84 143

J30

240 160

230 1 180

84 152 *240 190

81

79

81

81

84

107

162

123

112

iee

168

185

255

590

589

538

520

-

£45

250

265

270

290

3 2O

247

224

216

180

170

150

130

120

110

110

110

110

Month

October . .... . . ....... ....

November ........ . ..........

December . . . . . ..........

Calendar year 1949 ....

January . . ... .... . ... .....

February ....... . . ....

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

April . .....

May ....... . . . .

June ....... ... . . ...

July

August ... . . . . . ......

September . ... ... ...

Water year 1949-50 ....

150

150

150

140

140

140

140

150

*150

180

200

180

180

180

Mar.

250

240

243

387

475

Apr.

442

539

May

1,540

1,610

510 1,670

481 1,500

504 1,580

436 533

409 576

382 i 588

366

350

335

335

309

299

285

*290

509

319

319

519

570

576

594

714

1,090

1,330

1,420

1,650

2,030

1,760

1,710

1,860

180 519 2,090

180 319

170 314

180 309

200

C17

261

E55

_

-

-

Secondfoot-days

2,863

5,930

9,645

238,375

4,570

4,633

10,017

35.B47

122,590

113,220

32,07C

6,462

3,227

350,680

309

304

309

299

290

294

294

Maximum

182

590

526

5,900

190

261

475

2,090

6,320

4,500

2,530

345

136

6,320

2,030

1,850

1,660

1,650

1,530

1,430

1,320

1,260

1,350

-

1,610

1,890

2,180

2,540

3,080

3,900

June

4,200

3,940

3,980

4,320

4,500

4,460

4,040

3,580

3,210

3,050

3,300

4,960 3,820

5,870 4,010

6,070 1 4,130

6,320

6,140

5,850

5,120

4,320

3,880

3,980

4,820

4,880

4,460

4,320

4,590

5,070

5,100

4,780

4,500

4,260

Minimum

74

109

216

59

110

110

240

442

1,500

2,620

566

139

88

74

4,100

4,070

4,120

4,120

4,120

4,200

4,280

4,480

4,360

3,780

3,350

2,980

2,790

2,680

2,630

2,620

-

Mean

92.4

198

311

653

147

165

323

1,188

3,948

3,774

1,035

208

108

961

July

2,530

2,370

2,180

2,030

1,950

1,760

1,610

1,450

1,410

1,320

1,180

1,050

958

882

802

780

721

672

679

658

594

563

533

498

470

447

425

403

398

387

366

Per

square 

mile

0.162

.347

.546

1.15

.258

.289

.567

2.08

6.93

6.62

1.82

.365

.189

1.69

Aug | Sept.

345

;

:

24

04

90

280

266 'f

2

2

56

52

38

234

I

2

2

1

25

17

04

92

192

200

1

1

88

80

77

173

166

1

1

1

59

70

73

166

153

1

1

1

1

55

48

48

42

139

136

134

131

128

125

125

119

116

114

112

109

106

104

99

96

99

99

96

94

94

92

90

90

88

90

109

122

106

102

102

-

Runoff

Imhes

0.19

 39 '.6-5

15.56

.30

.30

.65

2.33

7.99

7.39

2.09

.42

.21

22.89

Ac re- feet

5,680

11,760

19,130

472,900

9,060

9,190

19,870

70,700

242,800

224,600

63,620

12,820

6,400

695,600

Peak discharge (base, 2.900 sec.-ft.). May 15 (10:30 p.m.) 6,650 sec.-ft.} May 28 (2:30 a.m.) 

5,280 sec.-ft.j June 23 (2 a.m.) 4,660 see.-ft.

* Winter discharge measurement made on t;his day.

Note.--Stage-discharge relation affected ty ice Dec. 11-13, 1S-28, Jan. 1 to Pet. 24, Feb. 28 to 

Mar. 2 (no gage-height record Jan. it5-Ct3j discharge computed en basis of weather records and records 

for station at Eileen and nearby streams).

238382 O - 53 - 15
216 KOOTENAI fir/Eft BASIN

Moyie River at Elieen, Idaho

Location.--Water-stage recorder, lat. 48=46!, long. 116 0 10', in NE^ sec. 35, T. 63 K., R. 

2 E.7 an eighth of a mile downstream from Skin Creek, a quarter of a mile southeast of 

Eileen, and 4 miles upstream from mouth. Datum of gage is 2,124.5 feet (river-profile 

survey).

Drainage area.--755 square miles.

Records available. October 1925 to September 1950.

Average discharge.--25 years, 813 second-fee^.

Extreme".--Maximum discharge during year, 8,090 second-feet May 15 or 16 (gage height, 6.2E 

Feet); minimum, 111 second-feet Oct. 3, 4 (gage height, 1.99 feet).

1925-50: Maximum discharge, 9,650 second-feet May 26, 1948 (gage height, 6.51 feet); 

minimum, 40 second-feet Nov. 27, 1936; minimum gage height, 0.50 foot, present datum, 

Feb. 22, 1S44.

Remarks.--Records good except 1 those for periods of no gage-height record, which are fair, 

ana those for periods of ice effect, whlcn are poor. No diversion or regulation above 

station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

120 

117 

111 

122 

194

207 

168 

154 

150 

150

147 

144 

141 

138 

134

134 

131 

128 

128 

125

128 

128 

125 

122 

122

125 

125 

154 

229 

198 

179

Nov.

171

*164 

164 

164 

164

168 

164 

164 

168 

171

187 

211 

233 

257 

E71

266 

252 

247 

242 

233

220 

224 

242 

247

266

345 

848 

900 

780 

735

Dec.

708 

735 

690 

634 

603

582 

533 

505

519 

477

420 

400 

380 

370 

370

370 

370 

360 

350 

330

320 

330 

340 

350 

370

380 

400

420 

410 

350 

310

Jan.

270 

220 

180 

200 

210

2 2O 

230 

240 

240 

250

250 

250 

220 

200 

170

160 

IbO 

160 

180 

230

250

270 

260 

250 

220

190 

170 

160 

160 

160 

160

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 .........

st . .

ember .

ter year 1949-50 ..........

Feb.

160 

160 

170 

190 

200

220 

210 

210 

220 

210

200 

200 

200 

210 

220

*250 

280 

260 

250 

250

250 

250

240 

260 

290

310 

380 

357

Secondfoot-day s

4,478 

8,863 

13,686

303,740

6,480 

6,607 

15,033 

50,680 

149,940 

132,040 

37,348 

3,412 

4,308

437,880

Mar

334 

330 

351 

505

666

634 

589 

561 

533

505

484 

484 

457 

431 

418

424 

484 

505

505 

512

512 

519 

505 

498 

491

484 

477 

464 

450 

457 

464

Maximum

229

900 

735

7,270

270 

380 

666 

2,750 

7,600 

5,480 

2,770 

431 

133

7,600

Apr.

666 

852 

798 

753 

789

852 

920 

940 

900 

920

950 

gl,180 

gl,780 

1,930 

2,110

2,290 

2,750 

2,420 

2,310 

*2,440

2,700 

2,660 

2,500 

2,240 

2,240

2,120 

2,040 

1,900 

1,810 

1,920

May

2,170 

2,280 

2,340 

2,170 

2,240

2,240 

2,5uO 

2,850 

3,280 

3,970

4,610 

g5,930 

7,000 

7,300 

7,600

7,400 

7,000 

6,200 

5,300 

4,600

4,800 

5,800 

5 , 800 

g5,480 

g5,120

g5,480 

6,000 

6,070 

5,790 

5,440 

5,180

Minimum

111 

164 

310

91

150 

160 

330 

666 

2,170 

2,880 

457 

187 

117

111

June

5,090 

4,850 

4,910 

5,240 

5,480

5,180 

4,730 

4,160 

3,700 

3,53C

3,870 

4,500 

4,730 

4,820 

4,730

4,700 

4,790 

4,760 

4,790 

4,910

5,000 

5,240 

5,030 

4,300 

3,770

3,320 

3,110 

3 , 000 

2,920 

2,880

Mean

144 

296 

441

832

209 

236 

485 

1,689 

4,837 

4,401 

1,205 

271 

144

1,200

July

2,77O 

2,610 

2,420 

2,260 

2,200

1,990 

1,850 

1,690 

1,630 

1,590

1,410 

1,260 

1,150 

1,050 

960

940 

870 

816 

816 

825

735

682 

65O 

603 

568

547 

519 

498 

498 

484 

457

Per 

square 

mile

0.191 

.392

.584

1.10

.277 

.313 

.642 

2.24 

6.41 

5.83 

1.60 

.359 

.191

1.59

Aug.

431 

405 

387 

363

351

340 

334 

329 

313 

307

300

285 

270 

255 

255

260 

250 

240 

230 

225

220 

210 

220 

230

220

210 

200 

200 

195 

190 

187

Sept

1S3 

179 

171 

171 

168

164 

160 

154 

150 

147

144 

144 

144 

138 

131

131

128 

125 

125 

122

120 

117 

117 

117 

120

141 

168 

150 

141 

138

Runoff

Inches

0.22 

.44 .6"'

14.96

.32 

.33 

.74 

2.50 

7.39 

6.50 

1.84 

.41 

,21

21.57

Acre-feet

8,880 

17,590 

27,150

602,400

12,850 

13,100 

29,820 

100,500 

297,400 

261,900 

74,080 

16,580 

8,540

868,500

Peak discharge (base, I,a40 sec. -ft.). Apr. 17 (8 a.m.) 2,900 sec. -ft. j May 15 cr 16 (time unknown) 8,180 sec.-ft.; May 28 (7 to 9 a.m.) 6,180 sec.-ft.; June 23 (5 a.m.) 5,340 sec.-ft.

* Winter discharge measurement made on this day.

g Computed from graph based on fragmentary recorder record and records for station at Eastport.

Note. Stage-discharge relation affected by ice about Dec. 11 to Feb. 27, Mar. 2. No gage-height 

recurd Jan. 31 to Feb. 15, May 13-23, Aug. 11-30; discharge computed on oasis of records for station at Eastport and nearby streams.
KOOTENAI RIVER BASIN gl 

Deep Creek at Moravia, Idaho

Location.--Staff gage, lat. 48°38', long. 116°24', in sec. 18, T. 61 N., R. IE., at 

concrete highway bridge, 1 mile downstream from Ruby Creek and 1 mile southwest of 

Moravia. Altitude of gage is 1,800 feet (from topographic map).

Drainage area. 133 square miles.

Records available.--May 1928 to September 1950 (no winter records prior to 1933).

Average discharge.--18 years (1932-50), 138 second-feet.

Extremes.--Maximum discharge observed during year, 1,500 second-feet May 15 (gage height, 

b.4X feet); minimum observed, 14 second-feet Oct. 3; (gage height, 1.16 feet).

1928-50: Maximum discharge observed, that of May 15, 1950; minimum discharge observed, 5 second-feet Aug. 14, 22, 1940.

Remarks. Records fair except those for periods of ice effect or doubtful or nonrepresentative gage-height record, which are poor. Staff gage read once daily. Small 

diversions above station for irrigation.

Discharge, in second feet, water year October 1949 to September 195C

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22

18

14

20

32

27

24

24

24

29

26

24

23

21

18

20

18

18

18

20

20

20

20

20

21

22

32

52

52

48

36

Nov.

33

33

32

30

32

32

34

34

38

52

57

71

76

68

62

56

55

53

46

39

39

38

48

43

*45

56

281

232

199

167

-

Dec.

187

176

173

170

164

156

148

126

119

109

94

95

90

85

85

85

85

85

80

75

75

80

85

90

90

90

120

150

160

150

140

Jan.

110

80

65

60

62

65

65

65

65

65

65

65

60

55

45

45

45

45

50

60

75

85

100

85

60

50

45

45

45

45

45

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

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

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

45

45

50

55

60

65

70

70

65

*60

60

60

60

60

70

90

110

110

105

105

100

100

100

110

120

140

170

173

-

-

-

Secondfoot-days

783

2,081

3,617

50,377

1,917

2,428

7 1 808

13,215

22, 826

12, 886

3,356

1,099

718

72,734

Mar.

173

170

164

238

291

310

281

265

241

226

220

212

208

214

208

220

265

310

297

294

285

285

285

278

269

259

252

247

259

288

294

Maximum

52

281

187

QQC

"

110

173

310

604

1,490

813

248

80

45

1,490

Apr.

324

363

338

317

317

314

317

316

307

302

307

331

410

454

485

523

523

528

534

546

564

604

546

523

523

512

512

517

512

546

-

May

523

540

540

496

506

496

480

501

506

564

750

1,010

1,090

1,390

1,490

1,260

1,230

963

717

613

553

678

691

691

703

704

730

665

626

577

542

Minimum

14

30

75

10

45

45

164

302

480

248

39

22

16

14

June

508

487

508

565

601

691

813

678

446

356

356

437

437

446

456

437

399

399

427

418

408

390

317

310

303

281

268

248

248

248

-

Mean

25*3

69.4

117

138

61.8

86* 7

252

440

736

430

108

35.5

23.9

199

July

248

242

224

212

169

159

159

154

145

115

104

97

86

80

74

71

68

68

83

119

83

68

68

83

68

68

63

53

44

42

39

Per 

square 

mile

0 «190

522

 880 00

1.04

.465

* 652

1* 89

3.31

5.53

3. 23

.812

 267

.180

1.50

Aug.

35

35

35

34

34

35

32

32

32

32

31

31

29

27

26

28

26

25

24

23

22

22

80

70

60

50

44

40

37

35

33

Sept.

3129'

28

27

26

25

24

23

23

22

22

21

21

20

20

19

19

18

18

18

17

17

17

16

16

45

39

35

32

30

-

Runoff

Inches

!58

1.01

14 no

2

3

6

3

"

.54

 63

.18

.70

.38

.60

.94

.31

.20

20.34

Acre-feet

1,550

4,130

7,170

99 *' 9?0 tfc*

3, 800

4,820

15,490

26, 210

45,270 

25,560

6, 660 

2,180

1,420

144,300

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 12 to Feb. 26. Qage-height record doubtful 

or not representative of average for the day Aug. 17-26, Aug. 28 to Sept. 30j discharge computed 

on basis of weather records and records for other Kootenai River tributaries.
318 KOOTENAI RIVER BASIN

Long Canyon Creek near Porthill, Idaho

Location. Water-stage recorder, lat. 48°57', long. 116°32', In NW£ sec. 36, T. 65 N., 

R. 2 W., 200 feet below U. S. Forest Service bridge at mouth of canyor , 4 idles southwest of Porthill. Temporary water-stage recorder at datum 2 feet lower and on opposite 

bank ased Aug. 30 to Sept. 30.

Drainage area. 29 square miles.

Records available.--May 1928 to September 1950 (no winter records prior to 1935).

Average discharge. 16 years (1934-50), 58.4 second-feet.

Extremes. Maximum discharge during year, 726 second-feet June 20; maximum gage height, 

4.bfa feet Nov. 27; minimum discharge, 8 second-feet Oct. 1-4, 20, 21, but may have 

been less during period of ice effect or no gage-height record.

1928-50: Maximum discharge, 1,300 second-feet May 27, 1948, by slope-area method; 

maximum gage height. 8.55 feet (datum used Sept. 4, 1941, to Aug. 23, 1948) June 14, 

15, 1933 (drift jam); minimum discharge, 3 second-feet Nov. 1-3, 28, Dec. 4-10, 1936, 

Jan. 6-8, 1937, Dec. 13, 1940.

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

which are poor. No diversion above station.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

1? 

28 

29 

30 

31

Oct.

8 

8

a

11 

39

17 

13 

11 

11 

11

11 

11 

11 

10 

10

10 

10 

10 

9 

10

9 

10 

10

11

12

12 

11 

60 

53 

34 

28

Nov.

24 

22

21 

20 

19

20 

19 

18 

19 

18

18 

43

44 

40 

38

31 

28 

26 

24 

20

18 

22 

29 

23

40

50 

335 

200 

133 

109

Dec.

96 

98 

78 

70 

65

58 

53

44 

50 

40

40 

43 

37 

35 

34

32 

30 

29 

*26 

25

23 

28 

25 

23 

20

20 

20 

24 

22 

20 

19

Jan.

16 

15 

14 

13 

13

13 

13 

13 

13 

 13

13 

13 

12 

11 

11

11 11' 

11 

11 

12

12 

12 

12 

12 

10

10 

10 

10 

10 

10 

10

Month

Octc 

Nove 

Dece

Ca

Jami 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lend&r year 1949 .........

h ....................... .

ember .....................

ter year 1949-50 ..........

Feb.

( )

10

Secondfoot days

489 

1,471 

1,227

22,753

370 - 

280 

384 

771 

5,981 

12,984 

4,773 

755 

436

" 29,921

Mar

10 

10 

10 

20 

19

13 

12 

12 

12 

12

12 

13 

13 

*12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12 

12

Maximum

60 

335 

98

570

16

20 

46 

355 

598 

380 

40 

24

598

Apr.

16 

14 

12 

12 

12

12 

12 

12 

12 

13

14 

20 

35 

36 

34

37 

46 

35 

32 

35

40 

39 

37 

33 

32

29 

28 

27 

27 

28

May

33 

43 

49 

44

43

43 

44 

47 

53 

66

94 

142 

214 

264 

290

286 

304 

272 

228 

204

214 

268 

268 

248 

252

295 

346 

355 

341 

313 

313

Minimum

8 

18 

19

4

10

10 

12 

33 

313 

45 

16 

13

-

June

327 

318 

355 

455 

510

460 

405 

346 

313 

313

375 

471 

542 

548

493

520 

570 

537 

520 

598

576 

515 

44O 

375 

341

318 

332 

341 

375 

395

Mean

15.8 

49.0 

39.6

62.3

11.9 

10.0 

12.4 

25.7 

193 

433 

154 

24.4 

14.5

82.0

July

380 

355 

33? 

313 

303

308 

272 

240 

23S 

210

187 

163 

150 13^5

110

95

90 

80 

90 

90

75 

6^ 

6? 

60 

5S

50 

43 

50

63 

S3 

45

Per 

square 

mile

0.545 

1.69 

1.37

2.15

.410 

.345 

.428 

.886 

6.66 

14.9 

5.31 

.841 

.500

2.83

Aug.

40 

36 

33

30 

27

26 

28 

26 

24 

22

21 

20 

19 

18 

21

28 

22 

20

19 

17

16 

16 

40 

35 

30

25

22 

20 

19 

18 

17

Sept.

16 

16 

16 

15 

15

15 

15 

15 

14 

14

14 

14 

14 

14 

13

13 

13 

13 

13 

13

13 

13 

13 

13 

14

24

18 

15 

14 

14

Runoff

Inches Acre-feet

0.63 970 

1.89 2,920 

1.57 2,430

29.16 45,140

.47 734 

.36 555 

.49 762 

.99 1,530 

7.67 11,860 

16.65 25,750 

6.12 9,470 

.97 1,500 

.56 865

38,37 59,350

* Winter discharge measurement made on this day.

Mote. Stage-discharge relation affected by ice Jan. 2 to about Feb. 10. No gag<?-height record 

Oct. 17-19, Jan. 17 to Mar. 2, July 15 to Aug. 29; discharge computed on basis of two discharge 

measurements, weather records, and records for other Kootenai River tributaries.
KOOTENAI RIVER BASIH 21 

Smith Creek near Porthill, Idaho

Location. --Water-stage recorder, lat. 48°57'40", long. 116°33'20", in HEij sec. 26, T. 65 

N., K. 2 W., at U. S. Forest Service bridge, 1 mile south of Smith Creek ranger 

station and 4 miles southwest of Porthill. Altitude of gage is 1,770 feet (from 

topographic map).

Drainage area.--70 square miles.

Records available.--Hay 1928 to September 1950 (no winter records 1928-30, 1932-34).

Average discharge.--18 years (1930-32, 1934-50), 172 second-feet.

Extremes.--Maximum discharge during year, 2,600 second-feet Nov. 27 (gage height, 7.03 

Feet), from rating curve extended above 1,700 second-feet; minimum, 13 second-feet 

Sept. 23, 24; minimum gage height. 1.08 feet Oct. 3, 4.

1928-50: Maximum discharge, 3,150 second-feet May 17, 1941, from rating curve 

extended above 1,600 second-feet; maximum gage height, 7.37 feet May 27, 1948; minimum discharge, 4 second-feet Bee. 4-10, 1936; minimum gage height, 0.78 foot Sept. 4, 

1931.

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

which are poor. Ho diversion above station.

Discharge, in second-feet, water year October 1949 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

21

20

19

30

114

61

46

40

38

38

37

39

36

34

33

32

28

29

24

29

29

28

28

29

30

32

32

253

17?

108

88

Nov.

78

72

70

69

68

68

65

63

63

61

63

186

185

170

156

131

117

119

103

100

97

95

114

99

156

247

1,530

534

366

300

Dec.

268

282

240

210

180

170

162

144

151

132

120

120

120

120

115

110

105

95

*90

84

80

80

86

79

83

82

101

93

83

76

70

Jan.

65

60

50

45

48

50

50

50

50

50

50

50

50

35

40

30

Month

October ................ ......

November ......................

December ......................

Calendar year 1949 .........

January ..................... .

February .............. .......

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

April ............ . . .........

May ...........................

June .....................

July ........................ .

August ........................

September ....................

Water year 1949-50 ..........

Feb

} -

40

*h39

45

50

50

50

50

50

50

50

50

43

48

50

55

55

_

-

Secondroot-days

1,582

5,535

3,931

71,635

1,298

1,220

1,892

3,613

19,609

35,655

11,588

1,823

832

88,578

Mar.

55

55

55

75

85

80

75

75

70

65

60

55

55

*59

57

58

61

Apr.

86

87

73

70

69

72

73

73

74

77

81

94

128

133

131

146

190

61 156

61 152

59

59

60

58

56

56

55

55

55

54

54

54

Maximum

253

1,530

282

1,980

65

55

85

190

1,150

1, 600

1,090

109

105

1,600

160

179

171

158

146

146

138

135

131

136

148

May

165

172

170

160

160

156

160

170

188

275

472

705

970

1,000

1,040

975

958

770

605

529

670

926

830

715

780

958

1,150

1,080

953

865

882

Minimum

19

61

70

12

54

69

156

715

100

35

13

13

June

942

892

1,060

1,250

1,320

1,160

1,030

810

715

800

1,070

1,330

1,360

1,420

1,300

1,400

1,490

1,440

1,490

1,600

1,560

1,530

1,400

1,010

980

904

992

1,060

1,140

1,200

Mean

51,0

184

127

196

41.9

43.6

61.0

120

633

1, 188

374

58.8

27.7

243

July

1,090

986

876

815

805

815

650

538

556

480

426

332

299

266

228

215

198

170

220

228

168

148

135

132

127

111

100

115

141

118

100

Per

square 

mile

0.729

2.63

1.81

2.80

.599

.623

.871

1.71

9.04

17.0

5. 34

!s40

.396

3.47

Aug

1

90

82

77

71

68

67

73

66

61

58

54

51

49

46

55

72

51

46

43

40

38

35

09

88

64

56

50

45

42

39

37

Sept

35

33

31

30

29

27

26

26

25

23

22

21

20

19

19

18

17

17

16

15

14

14

13

13

17

105

69

46

38

34

Runoff

Inches

0,84

2.94

2.09

38.05

.69

.65

1.01

1.92

10.42

18.94

6.16

.97

.44

47.07

Acre-feet

3,140

10,980

7,800

142,100

2,570

2,420

3,750

7,170

38,890

70,720

22,980

3,620

1,650

175,700

 Winter discharge measurement made on this day 

h Computed from staff-gage reading
220 KOOTENAI RIVER BASIN

Boundary Creek near Porthill, Idaho 

(International gaging station)

Location.--Water-stage recorder, lat. 48°59'50", long. 116°34'05", in SWi;- sec. 11, T. 65

II., K. 2 W., near mouth of canyon, 0.2 mile south of international boundary, and

3 miles west of Porthill. 

Drainage area. 97 square miles. 

Records available. May 1928 to September 1950. 

Average discharge. CO years (1930-50), 176 second-feet. 

Extremes. Maximum discharge during year, 2,030 second-feet June 22 (gage height, 4.92

feet); minimum, 16 second-feet Oct. 17 (gage height, 0.56 foot).

1928-50: Maximum discharge, 2,530 second-feet May 28, 1948 (gage height, 5.34

feet), from rating curve extended above 1,500 second-feet; minimum, 5 second-feet

sometime between Nov. 10 and Dec. 3, 1936 (gage height, 0.27 foot). 

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

which are poor. No diversion above station. 

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

United States under agreement with Canada.

Rating table, water year 1949-50, except periods of loe effect 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Oct. 1-29)

.9

1.1 

1.3

1.6 

1.9 

2.2

2.6 

3.0

132

196

297

457

630

3.4 840

3.8 1,120

4.5 1,670

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

24 

23 

22 

32 

96

58 

44 

38 

37 

36

36 

38 

35 

32 

32

29 

25 

29 

22 

29

28 

27 

28 

29 

30

30 

32 

126

105 

71 

61

Nov.

54 

51 

48 

48 

47

46 

43 

48 

47 

45

44 

95 

122 

102 

101

86 

77 

73 

69 

47

56 

*64 

72 

70 

120

130 

646 

313 

221 

189

Dec

172 

177 

147 

138 

130

127 

102 

98 

100 

93

94 

96 

95 

92 

90

85 

80 

75 

70 

70

70 

70 

70 

70 

65

60 

60

73 

72 

68 

65

Jan,

60 

50 

45 

40 

42

45

35 

40 

32

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber , . . 

lends r j 

ary

ear 1949

h ....... ..............

ember .....................

ter year 1949-50 ..........

Feb.

} "

40

*42

48 

49 

48 

48 

48

48 

49 

49 

47 

46

49

56 

53

Secondfoot-days

1,284 

3,174 

2,874

64,758

1,239 

1,208 

1,889 

3,780 

20,652 

34,812 

9,670 

1,986 

996

83,564

Peak discharge (base, 75O sec. -ft. ) .-- Nov

sec.-ft,.j May 28 (l a.m.) 1,250 sec. -ft. j J\

Mar.

52 

53 

52 

76 

84

80

77 

75 

71 

66

57 

55 

55 

*58 

57

57 

59 

61 

61 

61

60 

60 

59 

57 

56

57 

56 

55 

53 

55 

54

Maximum

126 

646 

177

1,820

60 

56 

84 

196 

1,170 

1,630 

875 

98 

78

1,630

Apr.

70 

77 

71 

66 

69

70 

73 

75 

73 

75

77 

91 

122 

132 

134

143 

186 

168 

168 

174

196 

191 

177 

164 

168

155 

153 

147 

151 

164

Hay

179 

194 

194 

184 

184

184 

194 

218 

255 

369

531 

705 

924 

987 

1,040

1,010 

1,020 

854 

685 

626

705 

924 

847 

769 

810

980 

1,170 

1,110 

987 

910 

903

Minimum

22 

43 

60

19

52 

66 

179 

786 

99 

42 

24

22

June

959 

931 

1,050 

1,210 

1,290

1,130 

1,020 

847 

786 

834

1,050 

1,250 

1,310 

1,490 

1,340

1,370 

1,420 

1,400 

1,410 

1,480

1,470 

1,630 

1,440 

1,020 

1,020

882 

896 

924 

966 

987

Mean

41.4 

106 

92.7

177

4O.O 

43.1 

60.9 

126 

666 

1,160 

312 

64.1 

33.2

229

July

875 

774 

7CO 

652 

621

594 

518 

453 

437 

393

365 

297 

266 

241 

213

204 

191 

172 

184 

182

151 

139 

127 

120 

118

109 

99 

112 

142 

120 

10?

Per

square 

mile

0.427 

1.09 

.956

1.82

.412 

.444 

.628 

1.30 

6.87 

12.0 

3.22 

.661 

.342

2.36

Aug

93 

86 

81 

76 

71

71 

77 

76 

68 

73

65 

62 

58 

54 

60

73 

58 

53 

50 

47

45 

43 

98 

84 

68

60 

55 

50 

46 

43 

42

Sept,

41 

38 

37 

36 

35

34 

32 

32 

32 

31

30 

30 

30 

28 

27

27 

27 

27 

26 

26

25 

25

24 

28

78 

58 

41 

35 

32

Runoff

Inches

0,49 

1.22 

1.10

24.83

.48 

.46 

.72 

1.45 

7.92 

13.35 

3.71 

.76 

.38

32.04

27 (6:30 a.m.) 1,05O see. -ft.; May 14 (12 p. 

me 5 (11 p.m.) 1,410 sec. -ft. j June 22 (12 p.

Ac re- feet

2,550 

6,300 

5,700

128,500

2,460 

2,400 

3,750 

7,500 

40,960 

69,050 

19,180 

3,940 

1,980

165,800

m.) 1,110 

m. ) 2,030

sec.-ft. ; June 29 (8:30 p.m.) 1,170 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 9, 11-27, Jan. 1 to about Prt. 10, Mar. 11- 

14. No gage-height record Jan. 15 to Feb. 14j discharge computed on basis of weather records and 

records for other Kootenal River tributaries.
FEND OREILLE RIVER BASIN 221

Clark Fork above Missoula, Mont.

Location. Water-stage recorder, lat. 46°53 ! , long. 113 C 56', in NW£ sec. 19, T. 13 N., R. 

18 W., 3 miles downstream from Blackfoot River and 3 miles east of Mlsso-ila.

Drainage area.--5,740 square miles.

Records available.--March 1929 to September 1950.

Average discharge.--21 years, 2,582 second-feet.

Extremes. Maximum discharge daring year, 19,800 second-feet June 19 (gage height, 9.87 

feet); minimum, 146 second-feet Oct. 2, ? (gage height, 0.78 foot); minimum daily, 600 

second-feet Jan. 4, 5.

1929-50: Maximum discharge, 31,500 second-feet May 23, 1948 (gage height, 13.07 

feet); minimum, 86 second-feet Jan. 8, 1930 (gage height, 0.52 foot, lee jam above 

station); minimum daily, 224 second-feet Jan. 8, 1930 (ice Jam above station).

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

regulated by power plant at Bonner. Several diversions above station fo" irrigation.

Revisions (water years).--W 1042: 1936. W 1152: 1942.

Rating table, water year 1949-5O, except period of ice effec 

(gage height, in feet, and discharge, In second-feet)

2.3 980 4.0 3,400 7.0 10,50O 

2.5 1,200 E.O 5,470 0.0 13,500 

3.2 2,100 6.0 7,840 9.4 18,300

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

1,500 

.1,130 

1,130 

1,390 

1,420

1,510 

1,510 

1,930 

l.OOO 

1 , 500

1,460 

1,490 

1,460 

1,490 

1,390

1,440 

1,420 

3,440 

1,420 

1,360

1,400 

1,450 

1,440 

1,490 

1,460

1,490 

*1,460 

1,480 

1,480 

1,490 

1,490

Nov.

1,460

1,490 

1,440 

1,430 

1,440

1,3SO 

1,430 

1,330 

1,420 

1,400

1,460 

1,370 

1,400 

1,460 

1,420

1,420 

1,380 

3 , 340 

1,360 

1,370

1,400 

1,300 

1,360 

1,480 

1,480

1,480 

1 , 520 

1,600 

1,680 

1,610

Dec.

1,590

1,520 

1,540 

1.40C 

1,360

1,380

1,380 

3,200 

1,210 

1,250

650 

750

* 1,050 

1,050 

1,000

1,100 

1,250 

1,250 

1,250 

1,000

900

1,100 

1 , 300 

1,350 

3,200

1,200 

1,200 

1,350 

1,300 

1,300 

1,150

Jan.

1,200 

1,050 

750 

600 

600

700

soo

1,050 

1,150 

1,100

1,150 

1,350 

±,150 

950 

SOO

900 

300 

900 

1 , 000 

1,100

1,300 

1,600 

j.,950 

1,900 

1,400

1,150 

1,250 

1,250 

1,000 

1,000 

900

Feb.

950

850 

350 

1,050 

1,200

1,250

1,300 

1,300 

1,350 

1,350

1,350 

1,350 

3.35C 

1,350 

1,40O

1,350 

1 , 400 

1,500 

1,550 

1,550

1,500 

1,500 

1,450 

1,500 

1,750

2,250 

2,800 

2,650

Month

Octo 

Hove 

Decs

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194S

ter year 1949-50 .......................

Mar.

2,100 

1,950 

1 , 600 

*1,S60 

2,340

2,660 

2,570 

2,190 

1,970

1,750

1,100 

1,250 

1,500 

1 , 500 

1,600

1,500 

1,700 

2,350 

2,700 

2,500

2,250 

2,060 

1,920 

1,790 

1,740

1,730 

1,680 

1,660 

1,590 

1 , 590 

1,640

Apr.

1, 

3, 

3, 

2, 

2,

2,

2, 

2, 

2, 

2,

2, 

2, 

2. 

3, 

5,

3, 

3, 

3, 

3, 

3,

s,

4, 

4, 

4, 

3,

3, 

3, 

3, 

3,

3,

Secondfoot -days

44, 

43,

37,

170 

530

1,053,900

33,900 

41,000 

58,640 

96,170 

222,550 

400,340 

172,610 

79 , 430 

52,410

1,282,290

970 

260

170 

66U 

360

260 

480 

660 

790 

730

630 

G30 

910 

C.80 

260

180 

380 

610 

510 

480

740 

220 

390 

180 

980

820 

680 

590 

420 

240

May

3, ISO 

3,350 

3,510 

3,460 

3,330

3,220 

3,150 

3,O40

3,040 

3,040

3,170 

3,570 

4,430 

5,830 

7,660

9 , 140 

9,930

10,400 

10,400 

3,680

8,660 

8,660 

10,200 

11,500 

11,100

10,400 

10,300 

11,100 

11,700 

11,500 

10,900

Maximum

1,930 

1,680 

1,590

14,800

1,950 

2,800 

2,700 

4,390 

11,700 

18,100 

11,000 

3,590 

2,030

18,100

June

10,500 

10,500 

10.OOO 

9,740 

10 , 800

12,500 

13,600 

13,200 

12,200 

10,300

10,100 

11,200 

13,200 

14,700 

14,80C

15,800 

16,800 

18,000 

18,100 

17,500

17,500 

17,200 

16,200 

14,500 

14,300

13,100 

11,500 

10,700 

10,500 

10,800

July Aug.

11,000 

11,000 

10,500 

3,850 

9,360

8,"J40 

8,270 

7,690 

7,030 

6,640

6,520 

6,130 

5,600 

5,140 

4,330

4,410 

4,350 

4,100 

3,940 

3,880

3,570 

3,330 

3,350 

3,270

3,350

3,010 

3,060 

2,690 

2,890 

2,840 

2,870

2,840 

2,74C 

2,630 

2,520

2,760

3,380 

3,590 

3,350 

3,090 

3,060

3,110 

3,130 

3,130 

3,010 

2,920

2,690 

2,550 

2,460 

2,360

2,280

2,360 

2,220 

2,160 

2,090 

2,070

2,020 

1,930 

1,820 

1,820 

1,740 

1,700

Minimum Mean

1,000 ,437 

1,300 ,439 

650 ,211

650 ,887

600 ,094 

850 ,464 

1,100 ,892 

1,970 ,206 

3,040 ,179 

9,740 1 ,340 

2,690 ,568 

1,700 ,562 

1,460 ,747

600 3,513

Sept.

1,050 

1,630 

1,590 

1,560 

1,480

1,510 

1,460 

1,490 

1,490 

1,560

1,600 

1,620 

1,650 

1,720 

1,920

2,030 

2,030 

2,030 

2,020 

1,960

1,860 

1,890 

1,820 

1,770 

1,760

1,810 

1,850 

1,890 

1,890 

1,890

Runoff in 

acre-feet

88,340 

85,630 

74,440

2,090,000

67,240 

81,320 

116,300 

19O,80O 

441,400 

794, 100 

342,400 

157,500 

104,000

2,543,OOO

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 10 to Jan. 2. No gage-height record Jan. 3 

to Mar. 3, Mar. 10-21 (stage-discharge probably affected by ice during most of period); discharge 

computed on basis of records for Milltown power plant at Bonner as furnished by Montana Power Co.
"" PESO OREILLE RIVER BASI!»

Clark Fork below Missoula, Mont.

Location.--Water-stage recorder, lat. 46°52', long. 114°07', In SEij sec. 21, T. 13 N., R. 

Liu w., 2 miles downstream from Bitterroot River and 6 miles west of Missoula,

Drainage area.--8,690 square miles.

Records available.--October 192^ to September 1950.

Average discharge. 21 years, 4,771 second-feet.

Extremes.--Maximum discharge during year, 39,100 second-feet June 13 (gage height, 10.17 

feet); minimum daily, 1,250 second-feet Jan. 4, 5.

1929-50: Maximum discharge, 52,800 second-feet May 23, 1948 (gage height, 12.08 

feet); minimum, 388 second-feet Jan. 18, 1333.

Remarks.--Records excellent except those for periods cf ice effect or no gage-height recordy which are fair. Some regulation by power plant at Bonner,. Many diversions above 

station for irrigation.

Revisions (water years). W 1042: 1931.

Rating tables, water year 1^49-50, except period of Ice effect 

(gage height, In feet, and discharge, In second-feet)

net. 1 to June 18 June 19 to Sept. 30

1.0 

1.4 

1.8 

2.4 

3.0

1,320

1,850

2,480

3.680

5,120

3,040

11,400

15,600

26.000

36,600

5.0 11,800

6.0 15,800

8.0 26,000

10.0 38,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

19 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

2,550 

2,500 

2, 020 

2,620 

2,720

2,910 

3,010 

3, 590

2,' 970

?,050 

3,050 

3,030 

2,590 

2,890

?,8M 

2,850 

2,810 

2,81C 

2,760

2,680 

2,570 

2,480 

2,520 

2,520

2,550 

2,520

2,590 

2,810 

3,050 

2,990

Nov.

2,890 

2,850 

2,770 

2,700 

2,700

2,700 

2 , 700 

2, 640 

2 , 640 

2,660

2,720 

2,610 

2 , 53C 

2,520 

2,480

2,430 

2,360 

2,310

2,280 

2,280

2,280 

2, ISO 

2,210 

2,400 

2,620

3,150 

3,330 

4,430 

4,550 

4, 050

Dec.

3,600 

a3,600 

a3,500 

a3, 000 

a£, 800

a2,800 

*2,810 

2,620

2,620 

2,910

1,920 

1.740 

2,030 

2,170 

2,080

2,170 

2,340 

2,430 

2 , 420 

2, 140

1, 900 

2,030 

2,360 

2,500 

2,280

2,230 

2,250 

2,360 

2,430 

2,330 

2,140

Jan.

2,120

2,020 

1,330 

al,250 

al,25o

al,300

al,400 

al, 700 

a2,000 

a2,000

2,050 

2,030 

1,920 

al, 550 

al, 500

al,450

al,450 

al, 450 

al,EOO 

*tl, 650

2,360 

3,970 

5,510 

4,380 

3,210

a2,400 

a2,450 

a2, 450 

a2,400 

a2,250 

a2,200

Feb.

a2,100 

a2,!OO 

a2, 1UO 

a2,200 

2, 290

2, 380

2,480 

2,480 

2,450 

2,400

2,380 

2,340 

2 . 330

2.410 

2,430

2,680 

2,660 

2, 700

2.660 

2,590

2, 570 

2,530 

2,530 

2,720

4,360

4,740 

5,280 

5,070

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary . . .

1. ......................................

ter year 1949-50 .......................

Mar.

4,190 

3,660 

3,500 

3,640 

4,070

4, 430 

4,430 

3,930 

3,640 

3,420

2.S60 

2,570 

2,770 

2,890 

2,870

2,850

3,050 

3,680 

4, 190 

4,000

3, 800 

3,550 

3,310 

3,250 

3,150

3,110 

3,030 

2, 030 

2,330 

2,760 

2,740

Apr.

3,330 

4,640 

5,250 

4, 670 

4,160

4,000 

4,140 

4,400 

4,620 

1, 570

4, 330 

4,380 

4,620 

5,100 

5,460

5,430 

5,640 

3,120

6,140 

6,060

6,410 

7,260 

7,820 

7,470 

6,920

6,530 

6,350

6,140 

5,860

5,540

Secondfoot-days

62,970 

76,680

2,068,940

66,500 

77,960 

104,940 

163,110 

389,080 

798,600 

359, 110 

129,550 

82,550

2,416,900

Bay

5,460 

5,510

5,310 

5,670 

5,430

5,250 

5,170 

4,540 

4,840 

4,820

4,940 

5.48C 

6,890 

9,670 

13 , 400

16,400 

17, 400 

18,000 

17, 500 

15, 400

13,700 

14,300 

18,400 

21,200 

20,400

18,600 

19, 000 

20,800 

22,300 

21, 600 

20, 600

Maximum

3,590

4,550 

3,800

33,700

5,510 

5,280 

4,430 

7,820 

22,300 

38,500 

24,500 

5,380 

3,340

38,500

June

20,000 

20,100 

19,200 

18,600 

20,600

23,700 

26,400 

26,200 

23,600 

20,200

18, 800 

20, 900 

24,600 

28,400 

28,300

30,300 

33,900 

38,500 

37,900 

36, 200

55,900 

36,200 

35, 400 

31,000

28,500

25,800 

22,600 

21,600 

22,000 

23,200

July

24,300 

24,500 

23,400 

21,600 

20,400

19, 100 

17,800 

16,400 

15, 000 

14,200

13,800 

12,600 

11.3CO 

10, 300 

9,430

8,7tO

8,520 

7,970 

7,520 

7,490

7,140 

6,680 

6,360

6,oeo

5,760

5,460 

5,490 

5,010 

5,540 

5,57O 

5,590

Minimum

2,020 

2,180 

1,740

1, 200

1, 250 

2,100 

2,570 

3,030 

4,820 

18,600 

5,010 

2,530 

2,060

1,250

Aug.

5,350 

4,960 

4,640 

4,500 

4,760

G,010 

6,380 

5,950 

5,460 

5,400

5 . 400 

5,270 

5,190 

4,980 

4,640

4,360 

4, 050 

3,830 

3,620

3,400

3,320 

3,160

2,970 

2,900 

2,880

2,860 

2,790 

2,720 

2,660 

2,610 

2,530

Mean

2,76S 

2,766 

2,474

5,668

2, 145 

2,784 

3,385 

5,437 

12,550 

26,620 

11,580 

4,179 

2,752

6,622

Sept.

2,460 

2,400 

2,350 

2,300 

2,190

2 , 140 

2,060 

2,080 

2,140 

2,240

2,230 

2,380 

2, 400 

2,650 

2,960

3,280 

3,340 

3,340

3,340 

3,260

3, 160 

3, 13G 

3,050 

2,960 

2,920

2,940 

3,110 

3,220 

3,240 

3,220

Runoff in 

acre -feet

170,300 

164,600 

152, 100

4,104,000

131,900 

154,600 

208, 100 

323, 500 

771,700 

1,584,000 

712,300 

257,000 

163, 700

4,794,000

Peak discharge (base, 12.000 seo.-ft.). May 17 (12 m.) 18,800 aec.-ft.; June 7 (2:30 p.m.) 28,700 

sec.-ft.; June 18 (7:30 a.m. to 4~p.m.) 39,100 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of tenperature records and records for station above Missoula.

b Stage-discharge relation affected by ice.
PEND OREILLE RIVER BASIN

Clark Pork at St. Regls, Mont.

Drainage area.--10 ,500 square miles.

Records available. October 1910 to Septemter 1923, February 1929 to September 1950.

Average discharge.--34 years, 7,256 second-feet.

Extremes.--Maximum discharge during year, 51,200 second-feet June 19 (gage height, 17.39 

feet) ; minimum daily, 1,900 second-feet Jan. 5-7.

1910-23, 1929-50: Maximum discharge observed, 68,300 second-feet May 23, 1948 

(gage height, 19.96 feet): minimum discharge, 1,000 second-feet Dec. 17, 1940 (gage 

heignt, 3.36 feet) , but may have been less during period of ice effect Feb. 19-22, 

1929.

ing table, water year 1949-50, except period of lee effect 

(gage height, In feet, and discharge In second-feet] 

g-control method used July 22 to Sept. 30)

2,580

3,010

4,800

6,950

11,000

10.0

12.0

14.0

16.0

17.4

15,900

23,900

32,900

43,000

51,300

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3,550 

3,200 

3,150 

2,830

3,350

3,570 

3,700 

3,790 

4,270

3,450

3,810 

3,840 

3,820 

3,790 

3,750

3,640 

3,640 

3,630 

3,590 

3,550

3,500 

3,430 

3,330 

3,230 

3,230

3,250 

3,300 

3,530 

3,630 

3,720 

3,860

Nov.

3,790 

3,680 

3,640 

3,550 

3,500

3,500 

3,450 

3,450 

3,400 

3,450

3,430 

3,470 

3,470 

3,420

3,360

3,280 

3,220 

3,150

3,070 

3,040

3,010 

3,010 

2,940 

3,010

3,200

3,500 

4,380 

5,040 

5,790 

5,740

Dec.

5,240 

5,020 

4,760 

4,580 

4,270

4,020 

3,910 

3,820 

3,570 

3,550

3,660 

2,860 

2,760 

2,850 

2,960

*2,940 

3,090 

3,190 

3,250 

3,190

2,860 

2,720 

2,860 

3,140 

3,220

3,040 

3,010 

3,060 

3,170 

3,220 

3,090

Jan.

2,920 

2,850 

2,590

b2,COO 

bl,900

bl,900 

bl,900 

b2,000 

b2,300 

b2,600

b2,700 

b2,700 

b2,600 

b2,500 

b2,100

2,000 

2,000 

2,000 

2,000 

2,000

2,400 

4,000 

5,000 

6,400 

5,800

4,600 

3,200 

3,200 

3,200 

3,100 

3,000

Feb.

2,900 

2,900 

2,900 

2,900

3,000

3,100 

3,200 

3,300 

3,300 

3,200

3,200 

3,100 

3,100 

3,100 

3,200

3,300 

3,500 

3,500 

3,500 

3,400

3,400 

3,300 

3,300 

3,400 

5,200

5,800 

6,300 

7,000

Month

Octo 

No ye 

Deee

Ca

Janu 

Pebr 

Kara 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

1.................. .....................

ter year 1949-50 .......................

Bar.

6,800 

6,000 

5,200 

4,800 

5,400

*6,310 

6,540 

6,230 

5,740

5,360

4,800 

4,310 

4,130 

4,240 

4,260

4,290

4,360 

4,660 

5,340 

5,720

5,570 

5,340 

5,160 

4,980

4,840

4,740

4,680 

4,560 

4,400 

4,310 

4,270

Apr.

5,240 

6,980

8,100 

7,850 

7,200

6,720 

6,630 

6,810 

7,020 

7,120

7,000 

6,950 

7,420 

8,220 

8,940

9,260 

10,200 

10,900 

11,000 

10,800

11,300 

12,100 

12,500 

12,100 

11,400

10,600 

10,200 

9,900 

9,450 

9,070

Second - 

foot-days

109,740 

107,940 

106,880

2,779,470

89,660 

101,300 

157,340 

268,980 

589,080 

1,086,800 

492,050 

174,410 

109,680

3,393,860

May

8,920 

8,890 

8,970 

8,940 

8,680

8,400 

8,180 

8,020 

7,950 

3,200

9,130 

10,800 

13,700 

18,100 

22,500

25,500 

27,000 

26,500 

25,600 

23,600

21,500 

22,000 

25,900 

28,900 

29,000

27,600 

27,800 

29,100 

30,500 

30,100 

29,000

Maximum

4,270 

4,790 

5,240

47,100

6,400 

7,000 

6,800 

12,500 

30,500 

50,900 

32,200 

7,800 

4,240

50,900

June

28,500 

28,400 

28,200 

27,700 

29,200

32,100 

34,200 

34,900 

32,800 

29,400

27,500 

29,300 

33,200 

37,800 

39,100

40,400 

43,800 

47,800 

50 , 900 

49,700

48,800 

48,100 

46,900 

43,000

37,800

35,300 

31,900 

29,700

29,600 

30,800

July

31,900 

32,200 

31,400 

29,500 

27,700

26,300 

24,500 

22,900 

21,000 

19,800

18,700 

17,400 

15,800 

14,400 

13,400

12,100 

11,700 

11,100 

10,600 

10,300

9,900 

9,360 

8,920 

8,530 

8,150

7,750 

7,450 

7,280 

7,150 

7,480 

7,380

Minimum

2,830 

2,940 

2,720

1,800

1,900 

2,900 

4,130 

5,240 

7,950 

27,500 

7,150 

3,640 

3,010

1,900

Aug.

7,280 

5,880

6,510 

6,250 

6,250

6,770 

7,620 

7,800 

7,320 

6,900

6,860 

6,770 

6,650 

6,540 

6,290

5,960 

5,580 

5,300 

5,060 

4,820

4,640 

4,480 

4,290 

4,200 

4,110

4,040 

4,000 

3,930 

3,820 

3,750 

3,640

Mean

3,540 

3,598 

3,448

7,615

2,892 

3,618 

5,075 

8,966 

19,000 

35,230 

15,870 

5,626 

3,656

9,298

Sept.

3,540 

3,480 

3,400 

3,330 

3,280

3,190 

3,110 

3,030 

3,010 

3,060

3,120 

3,190 

3,250 

3,300 

3,550

3,910 

4,180 

4,240 

4,220 

4,200

4,130 

4,020 

3,970 

3,900 

3,810

3,860 

4,020 

4,080 

4,150 

4,150

Runoff In 

acre -feet

217,700 

214,100 

212,000

5,512,000

177,800 

200,900 

312,100 

533,500 

1,168,000 

2,156,000 

976,000 

345,900 

217,500

6,732,000

Peak discharge (base, 17,000 sec.-ft.).--June 8 (3 a.m.) 36,200 sec.-ft.; June 19 (5 a.m.) 51,200 

sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Jan. 16 to Mar. 5 (stage-discharge relation probably affected by Ice 

during most of period); discharge comcuted on basis of temperature records and records for station 

below Mlssoula.
PEND OREILLE RIVER BASIN

Clark Fork near Plains, Mont.

Location.--Water-stage recorder, lat. 47°26', long. 114°51", on lot 7, SWf sec. 1, T. 19 

R., R. 26 W., 2 miles upstream from Plains and 6 miles downstream from Flathead River. 

Datum of gage is 2,449.34 feet above mean sea level, datum of 1929 (levels by Corps of 

Engineers).

Drainage area. 19,900 square miles.

Records available. October 1910 to September 1950.

Average discharge.--34 years (1912-15, 1917-19, 1920-24, 1925-50), 18,460 second-feet.

Extremes. Maximum discharge during year, 110,000 second-feet June 23 (ga^e height, 16.81 

feet/; minimum, 6,880 second-feet Sept. 25 (gage height, 3.95 feet).

1310-50: Maximum discharge, 134,000 second-feet June 5, 1948 (gage height, 19.17 

feet); minimum, 3,200 second-feet Feb. 8, 1936, Dec. 10, 1940; minimum gage height, 

2.85 feet Dec. 10, 1940.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are fair. Many diversions above station for irrigation. Some regulation by 

Flathead Lake (see p. 252).

Rating table, water year 1949-50, except period of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 1 to Nov. 5)

4.0 7,060

4.8 10,200

5.5 13,200

7.0 20,600

8.5 29,800

10.0 40,500

12.0 58,OOO

14.0 78,500

16.8 110,000

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17ie

19 

20

21 

22 

23 

24

25

26 

27 

2B 

29 

30 

31

Oct.

8,640 

9,040 

8,560 

8,290 

9,480

9,760 

9.640 

10,100 

9,960 

8,260

9,240 

10,100 

10,300 

9,960 

11,200

9,720 

9,360 

10,600 

11,100 

11,000

11,300 

10,700 

8,220 

7,610 

7,840

7,690 

7,690 

7,880 

8,370 

8,520 

8,640

Nov.

8,640 

9,120 

10,200 

9,960 

10,500

10,000 

9,280 

10,500 

10,500 

10,900

10,800 

10,600 

10,800 

10,300 

10,500

10,900 

10,900 

10 , 800 

10,800 

10,800

10,500 

10,700 

10,700 

10,600 

9,920

10,900 

11,900 

11,000 

13,400 

13,800

Dec.

13,600 

13,400 

12,300 

9,600 

8,410

9,640 

10,700 

12,300 

11,000 

10,000

9,500 

9,500 

11,000 

15,000 

*17,100

17,000 

17,500 

15,700 

12,600 

12,400

11,700 

12,200 

12,300 

12,100 

11,800

11,300 

11,300 

11,900 

11,900 

11,900 

11,600

Jan.

11,600 

10,900 

10,000 

8,300 

8,500

8,000 

9,500 

10,300 

10,400 

10,700

11,200 

11,700 

12,000 

11,000 

10,000

10,500 

11,000 

11,500 

12,000 

12,500

b!3,500 

b!4,500 

15,500 

17,000 

16,000

15,000 

14,500 

14,000 

13,500 

13,000 

12,000

Feb.

12,500 

13,000 

13,000 

13,000 

12,100

12,700 

13,500 

14,200 

14,600 

15,000

15,000 

14,800 

14,300 

14,000 

13,500

12,700 

12,500 

12,500 

12,300 

12,200

12,500 

12,000 

11,300 

11,600 

11,800

12,500 

13,300 

14,500

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Msv

June 

July 

Augu 

Sept

Wa

lendar year 194

ter year 1949-50 .......................

Mar.

14,300 

14,100 

13,700 

12,800 

12,200

13,500 

*14,400 

14,400 

13,700 

12,500

12,000 

11,600 

11,000 

11,100 

11,200

11,100 

11,200 

11,500 

11,900 

12,500

13,000 

12,600 

12,300 

11,800 

11,700

11,500 

11,400 

11,600 

11,200 

11,000 

10,900

Apr.

11,300 

13,000 

14,200 

14,600 

13,600

13,100 

12,800 

12,700 

13,700 

13,200

14,200 

13,700 

13,800 

15,000 

15,900

16,400 

16,900 

18,700 

19,300 

19,800

20,400 

21,400 

22,700 

23,300 

23,500

22,700 

22,700 

23,000 

22,900 

22,100

Secondfoot-days

288,770 

320,220 

378,250

6,836,570

370,100 

366,900 

379,700 

520,600 

1,362,300 

2,754,000 

1,590,100 

496,940 

265,570

9,093,450

May

21,900 

22,100 

22,300 

22,100 

21,800

21,200 

21,200 

21,100 

21,000 

21,200

22,200 

24,300 

27,800 

33,200 

40,200

47,000 

52,500 

55,000 

56,600 

56,700

55,400 

55,600 

60,100 

65,400 

68,100

67,700 

67,900 

69,800 

72,400 

74,200 

74,300

Maximum

11,300 

13,800 

17,500

95,700

17,000 

15,000 

14,400 

23,500 

74,300 

110,000 

94,200 

29,000 

9,880

110,000

June

74,300 

74,800 

74,600 

73,900 

74,900

79,400 

84,800 

87,800 

86,100 

82,600

78,700 

79,200 

83,700 

89,800 

93,000

95,200 

99,200 

104,000 

108,000 

109,000

109,000 

109,000 

110,000 

108,000 

105,000

102,000 

98,000 

94,300 

92,700 

92,900

July

93,700 

94,200 

94,010 

92,200 

89,800

87,300 

84,600 

81,600 

78,400 

75,800

72,800 

69,500 

61,500 

44,300 

30,200

38,700 

39,800 

38,200 

24,700 

19,500

22,900 

33,000 

34,000 

f!9,900 

24,000

27,500 

26,000 

23,000 

24,000 

23,000 

22,000

Minimum

7,610 

8,640 

8,410

4,960

8,000 

11,300 

10,900 

11,300 

21,000 

73,900 

19,500 

9,160 

7,130

7,130

Aug.

25,000 

29,000 

20,000 

f 16, 500 

f!9,600

f 20, 600 

f 17, 800 

17,000 

f!9,800 

f 21, 500

f!9,600 

f 18, 200 

f 17, 100 

f 16, 200 

f!6,000

f!5,000 

f 15, 000 

f 15, 000 

f 14, 700 

14,600

13,500 

12,700 

13,300 

13,000 

12,700

13,000 

12,900 

9,880 

9,160 

9,320 

9,280

Mean

9,315 

10,670 

12,200

18,730

11,940 

13,100 

12,250 

17,350 

43,950 

91,800 

51,290 

16,030 

8,852

24,910

Sept.

9,160 

9,120 

9,360 

9,680 

9,200

9,760 

9,600 

9,360 

9,880 

9,480

9,280 

8,840 

8,880 

8,880 

9,360

9,120 

7,910 

7,690 

8,600 

9,120

8,800 

9,240 

9,200 

7,720 

7,130

8,330 

8,450 

8,290 

7,800 

8,330

Runoff In 

acre-feet

572,800 

635,100 

750,200

13,560,000

734,100 

727,700 

753,100 

1,033,000 

2,702,000 

5,462,000 

3,154,000 

985,700 

526,800

18,036,000

Peak discharge (base. 47,000 see.-ft.). June 23 (3 to 11 p.m.) 110,000 sec.-ft.

* Winter discharge measurement made 'on this day.

t Stage-discharge relation, affected by Ice.

f Computed from partly estimated gage-height record.

Note. No gage-height record Dec. 9-14, Jan. 3-20, Jan. 24 to Mar. 6, July 22, 23, July 25 to Aug. 

3, Aug. 8, 20, 21} discharge computed on basis of records for station at St. Regls, Plathead River 

near Poison, and outflow from Thompson Palls power plant as furnished by Montona Power Co.
FEND OREILLE RIVER BASIN 

Clark Pork near Heron, Montana

225

Location.--Water-stage recorder, lat. 48°04', long. 115°59', in sec. 28, T. 27 N., R. 34 

W. , bOO feet upstream from Dead Horse Creek and 1-| miles northwest of He~on. Datum of 

gage is 2,078.00 feet above mean sea level, datum of 1929, supplementary adjustment of 

1947.

Drainage area.--21,800 square miles.

hecoras available. September 1928 to September 1950.

Average aiscnafge'. 22 years, 19,940 second-feet.

Extremes.--Maximum discharge during year, 120,000 second-feet June 21-24; maximum gage

 neignt, 43.70 feet June 22; minimum discharge, 4,520 second-feet Oct. 25 (gage height, 

10.14 feet); minimum daily, 7,430 second-feet Sept. 26.

1928-50: Maximum discharge, 153,000 second-feet May 29 to June 1, 1948; maximum gage 

height, 50.97 feet May 31, 1948; minimum discharge, 1,190 second-feet (revised) Dec. 23, 

1935 (gage height, 7.59 feet), during period of extreme regulation, from rating-curve 

extended below 4,000 second-feet; minimum daily, 1,400 second-feet Feb. 12, 1936.

Revisions. The minimum discharge for the water year 1936 has been revised to 1,190 

second-i'eet Dec. 23, 1935 (gage height, 7.59 feet), superseding figure published in 

Water-Supply Paper 812.

Maximum discharge known, 195,000 second-feet June 1894 (gage height, 59.1 feet, 

present datum, from floodmark an eighth of a mile downstream).

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

regulation by Flathead Lake (see p. 252); diurnal fluctuation at low flo'M caused by 

power plant at Thompson Falls. Diversions from tributaries above station for irrigation.

Revisions.--Revised figures of discharge, in second-feet, for the extreme low-water period 

in tne water year 1936, superseding those published in Water-Supply Pape 812, are 

given herewith:

Dec. 23, 1935 .......... 1,520

Month

Calendar year 1935..... 

Water year 1935-36 .....

Secondfoot-days

6,952,140 

6,573,410

Maximum

77,600 

89,600

Minimum

1,520 

1,400

Mean

19,050 

17,960

Runoff In 

acre-feet

13,790,000 

13,040,000

Discharge, in second-feet, water year October 1949 to September 1950

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

Oct.

8,480 

9,510 

9,410 

9,250 

9,050

10,200 

10,400 

10,300 

10,800 

10,600

9,030 

9,660 

10,600 

10,700 

10,800

11,700 

10,400 

10,200 

11,000 

11,200

11,400 

11,700 

10,800 

8,810 

8,090

8,260 

7,980 

8,280 

9,030 

8,990 

8,960

Nov.

8,900 

8,970 

9,510 

10,400 

10,600

10,800 

10,100 

9,800 

10,500 

11,000

11,400 

11,200 

11,500 

11,400 

11,100

11,300 

11,400 

11,700 

11,300 

11,200

11,200 

10,900 

11,100 

11,300 

11,100

11,300 

11,700 

14,300 

13,700 

15,200

Dec.

15,500 

15,100 

14,900 

13,600 

11,100

10,100 

10,700 

11,700 

* 12, 800 

12,300

10,400 

10,600 

9,690 

11,900 

14,900

17,700 

17,500 

18,100 

15,700 

12 , 800

12,600 

11,800 

12,700 

13,200 

13,000

12,600 

12,200 

12,400 

13,000 

12,900 

12,800

Jan.

12,600 

12,400 

11,300 

9,550 

9,660

8,980 

10,400 

11,400 

12,000 

12,100

12,100 

12,700 

13,200 

12,200 

11,200

11,300 

12,700 

13,300 

14,000 

15,000

15,000 

16,000 

18,000 

19,000 

18,000

17,000 

16,000 

15,000 

15,000 

15,000 

14,000

Feb.

13,000 

13,000 

14,000 

14,000 

14,000

15,000 

16,100 

16,500 

17,000 

17,000

*17,400 

17,000 

16,700 

16,400 

16,200

15,700 

15,300 

15,300 

15,200 

15,200

14,900 

14,900 

14,400 

14,300 

14,700

15,700 

17,000 

18,100

Month

00 to 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MRV

June 

July 

Augu 

Sept

Wa

lendar year 1949

uary . ................ , ..................

ter year 1949-50 .......................

Mar.

18,500 

17,900 

17,000 

16 , 100 

17,200

18,200 

18,500 

19,000 

18,300 

17,200

16,200 

15,300 

14,300 

13,600 

13,600

13,600 

13,800 

14,300 

15,000 

15,800

15,900 

16,200 

15,800 

15,500 

15,200

15,000 

14,700 

14,400 

14,500 

14,100 

13,700

Apr.

14,500 

16,800 

18,500 

19,200 

19,300

18,600 

18,300 

18,300 

18,300 

18,300

17 , 800 

18,400 

18,700 

19,800 

21,500

22,900 

24,400 

27,900 

28,500 

28,100

28,200 

29,400 

30,200 

30,000 

30,100

29,600 

28,700 

28,500 

28,500 

27,900

Secondfoot -days

305,590 

335,880 

406,290

7,817,920

416,090 

434,000 

488,400 

699,200 

1,623,600 

3,016,200 

1,787,200 

554,300 

288,610

10,355,360

May

27,300 

27,600 

27,600 

27,500 

27,200

26,600 

.26,000 

25,800 

25,900 

26,400

28,300 

32,500 

38,300 

46,000 

53,800

59,700 

64,500 

67,500 

67,000 

66,200

64,500 

64,000 

68,800 

73,500 

76,700

77,800 

78,600 

80,200 

81,700 

83,100 

83,000

Maximum

11,700 

15,200 

18,100

106,000

19,000 

18,100 

19,000 

30,200 

83,100 

120,000 

101,000 

28,700 

10,700

120,000

June

83,100 

83,500 

83,700 

84,000 

85 , 000

88,200 

91,500 

94,200 

94,200 

91,100

87,600 

87,100 

90,200 

95,800 

101,000

104,000 

108,000 

111,000 

116,000 

119,000

120,000 

120,000 

120,000 

119,000 

115,000

111,000 

108,000 

104,000 

101,000 

100,000

July

101,000 

101,000 

101,000 

99,700 

97,200

94.90C

92.50C 

89.40C 

86.10C 

83,OOC

80,30C 

76.80C 

72.80C 

61,50C 

47,30C

38,20C 

44,400 

44,300 

40,800 

27.90C

24,80C 

30,20C 

37,900 

30,900 

24,000

28,900 

29,000 

26,300 

25,700 

26,300 

23,70C

Minimum

7,980 

8,900 

9,690

5,630

8,980 

13,000 

13,600 

14,500 

25,800 

83,100 

23,700 

10,400 

7,430

7,430

Aug.

23,700 

28,700 

25,200 

18,400 

18,500

21,600 

22,500 

19,900 

20,200 

22,000

23,100 

21,200 

20,100 

18,900 

17,900

17,700 

17,000 

16,500 

16,400 

16,200

15,700 

14,500 

14,100 

14,500 

14,400

14,300 

14,500 

14,100 

11,700 

10,400 

10,400

Mean

9,858 

11,200 

13,110

21,420

13,420 

15,500 

15,750 

73,310 

52,370 

100,500 

57,650 

17,880 

9,620

28,370

Sept.

10,300 

10,300 

10,300 

10,300 

10,600

10,100 

10,700 

10,400 

10,300 

10,700

10,200 

10,000 

9,820 

9,540 

9,480

10,000 

9,520 

8,720 

8,460 

9,320

9,680 

9,400 

9,190 

9,630 

 8,610

7,430 

9,280 

8,880 

9,110 

8,340

Runoff in 

acre-feet

606,100 

666,200 

805,900

15,510,000

825,300 

860,800 

968,700 

1,387,000 

3,220,000 

5,983,000 

3,545,000 

1,099,000 

572,400

20,540,000

* Winter discharge measurement n 

Note. Stage-discharge relation

ide on this day.

iffeeted by ice Jan. 19 to Feb. 6.
226 PEND OREILLE RIVER BASIN

Pend Oreille Lake at Hope, Idaho

Location. Water-stage recorder, lat. 48°15', long. 116°18', in lot 2, sec. 35, T. 57 H., 

HT~T~E., at floating dock near Northern Pacific Railway station at Hope. Datum of 

gage is 2,000.00 feet above mean sea level, datum of 1929.

Drainage area. 22,900 square miles.

Records available. September 1921 to September 1950. March 1914 to September 1922 at 

site at sandpoint.

Extremes. Maximum contents during year, 1,987,000 acre-feet June 26 (elevation, 2,067.11 

 i'eet) ; minimum, 198,400 acre-feet Oct. 1 (elevation 2,047.45 feet).

1921-50: Maximum contents, 2,462,000 acre-feet Jane 9, 1948 (elevation, 2,071.82 

feet); minimum, 117,700 acre-feet Feb. 17, 1936 (elevation, 2,046.47 feet).

Maximum contents known, 2,905,000 acre-feet in June 1894 (elevation, 2,076.08 feet).

Remarks.--Piversions from tributaries of Clark Pork for irrigation. Pend Oreille Lake is 

a natural lake and there is no regulating structure at the outlet. Contents shown is 

that above elevation 2,045 feet.

Revisions (water years). W 1122: 1946.

Elevation, In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

47.47

47.50

47.54

47.60

47.74

47.78

47.82

47.86

47.92

47.98

48.00

48.01

48.01

48.02

48.07

48.10

48.11

48.07

48.05

48.10

48.13

48.17

48.19

48.19

48.17

48.10

48.07

48.13

48.16

48.15

48.13

Nov.

48.12

48.12

48.11

48.10

48.12

48.13

48.16

48.16

48.17

48.21

48.27

48.37

48.48

48.56

48.60

48.61

48.63

48.65

48.66

48.64

48.64

48.65

48.67

48.68

48.69

48.70

48.86

48.96

49.06

49.16

-

Dec.

49.24

49.33

49.40

49.40

49.38

49.34

49.27

49.22

49.22

49.21

49.18

49.12

49.08

49.01

49.03

49.18

49.29

49.43

49.50

49.49

49.46

49.43

49.40

49.43

49.41

49.40

49.37

49.38

49.36

49.36

49.36

Jan.

49.33

49.30

49.25

49.20

49.13

49.08

49.06

49.05

49.05

49.06

49.07

49.08

49.09

49.19

49.21

49.17

49.14

49.12

49.18

49.24

49.24

49.29

49.44

49.57

49.69

49.79

49.84

49.87

49.86

49.86

49.83

Feb.

49.79

49.75

49.74

49.77

49.77

49.77

49.77

49.80

49.84

49.85

49.89

49.91

49.97

49.99

50.00

50.00

50.00

49.99

49.98

49.97

49.96

49.97

49.97

50.00

50.00

50.01

50.05

50.10

_

-

Mar.

50.16

50.22

50.26

50.30

50.42

50.59

50.70

50.76

50.80

50.79

50.75

50.70

50.63

50.54

50.43

50.41

50.49

50.60

50.67

50.73

50.77

50.80

50.80

50.81

50.79

50.75

50.71

50.67

50.60

50.56

50.50

Apr.

50.54

50.61

50.71

50.80

50.86

50.93

50.98

51.01

51.05

51.07

51.08

51.11

51.15

51.22

51.32

51.46

51.63

51.82

52.05

52.24

52.40

52.60

52.78

52.93

53.08

53.18

53.25

53.26

53.28

53.30

-

May

53.29

53.30

53.30

53.30

53.30

53.31

53.29

53.24

53.22

53.20

53.22

53.37

53.65

54.08

54.67

55.31

56.01

56.67

57.23

57.69

58.03

58.33

58.65

59.01

59.40

59.80

60.21

60.55

60.87

61.18

61.43

June

61.67

61.86

62.07

62.22

62.38

62.61

62.79

63.06

63.27

63. 3S

63.44

63.52

63.60

63.78

63.99

64.26

64.59

64.95

65.25

65.70

66.12

66.50

66.76

66.93

67.09

67.10

67.02

66.91

66.74

66.58

-

July

66.41

66.23

66.16

66.0?

65. 8<-

65.65

65.42

65.19

64.83

64.53

64.22

63 . 83

63.45

62.99

62.30

61.43

60. 6B

60.10

59.58

58.88

58.10

57.46

57.02

56.68

56.18

55.74

55.40

55.10

54.78

54.48

54.20

Aug.

53.90

53.71

53.60

53.30

52.98

52.78

5E.61

52.43

52.28

52.13

52.03

51.94

51.81

51.70

51.54

51.42

51.30

51.17

50.98

50.85

50.74

50.61

50.54

50.41

50.31

50.22

50.13

50.05

49.96

49.83

49.70

Sept.

49.56

49.44

49.33

49.24

49.14

49.07

49.00

48.91

48.85

48.76

48.72

48.69

48.60

48.56

48.50

48.43

48.41

48.37

48.32

48.29

48.25

48.24

48.22

48.21

48.20

48. 22

48.14

48.11

48.10

48.07

-

Note. Add 2,000 feet to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1949 to September 1950

Date

Sept. 30.. ..................

Dec. 31. ...................

Calendar year 1949 .......

Jan. 31.... ................

Water year 1949-5O. . .....

Elevation 

(feet)t

2,047.44

2,049.34

_

_

Contents 

(acre-feet)

358,100

_

_

Change In contents 

during month 

(acre-feet)

+11,900

+96,700

+50,400

t Elevation at 12 p.m.
PEND OREILLE RIVER BASIN

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

(International gaging station)

Location.--Water-stage recorder, lat. 48°59', long. 117°21', in lot 2, sec. 11, T. 40 N., 

R. 43 E., three-quarters of a mile downstream from 2 Canyon, l| miles south of international boundary, 5 miles downstream from Slate Creek, and 10 miles downstream from 

town of Metaline Falls. Datum of gage is 1,721.80 feet above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Drainage area.--25,200 square miles.

Records available.--October 1928 to September 1950. November 1908 to September 1910 (gage 

heights only) and October 1912 to September 1928 at site at Metaline Falls, 10 miles 

upstream published as Clark Fork at Metaline Falls.

Average discharge.--38 years (1912-50), 25,900 second-feet.

extremes.--Maximum discnarge during year, 128,000 second-feet June 28 (gage height, 50.36 

feet); minimum, 8,160 second-feet Oct. 2 (gage height, 11.42 feet).

1912-50: Maximum discharge, 171,300 second-feet June 13, 1948 (gage height, 60.25 

feet); minimum, 2,500 second-feet Dec. 12, 1919 (gage height, -2.4 feet, site and datum 

then in use).

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

Many small diversions from tributaries for irrigation. Flow affected ty natural storage 

in Pend Oreille Lake (see preceding page) and some regulation by Flathead Lake (seep, 252)

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

States under agreement with Canada.

Revisions (water years).--W 442: 1913.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

11.4

12.0

12.5

13.0

14.0

8,120

9,500

10,800

12,200

15,300

15.0

16.0

17.0

18.0

19.0

18,800

22,600

26,200

29,300

32,400

20.0

21.0

23.0

25.0

27.0

35,400

38,400

44,600

50,600

56,800

29.0

31.0

33.0

35.0

37.5

62,800

69,000

75,000

81,200

88,800

40.0

42.5

45.0

47.5

50.3

96,400

104,000

111,600

119,300

127,800

Discharge, In second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

8,250

8,190

8,250

8,740

9,500

9,650

9,850

10,200

10,400

10,600

10,800

10, BOO

10,700

10,900

11,100

11,100

11,200

11,500

12,200

12,100

11,700

11,600

11,600

11,900

11,800

11,800

11,600

11,600

11,500

11,500

11,700

Nov.

11,700

11,700

11 , 700

11,700

11,700

11,300

11,900

12,000

12,000

12,000

12,200

12,600

12,900

13,600

14,000

14,200

14,400

14,500

14,400

14,400

14,500

14,600

14,500

14,300

14,500

14,500

14,900

14,100

14,500

15,500

-

Dec.

16,300

16,800

16,500

16,900

17 , 800

18,000

17,600

17,700

17,500

17,000

17,000

16,900

16,700

16,400

16,400

16,400

16,500

17,100

17,300

17,400

17,500

17,500

17,500

17,500

17,500

17,400

17,500

17,500

17,300

17,500

17,100

Jan.

17,200

17,400

17,200

15,100

14,400

14,300

14,300

14,800

15,400

15,400

15,300

15,600

15,000

14,900

14,200

313,700

a!4,000

a!4,500

a!5,000

a!5,500

316,000

316,300

16,700

16,900

316,700

3l 6 , 300

alS.aOO

315,400

a!5,000

a!5,000

alS.OOO

Month

October ..... .................

November ......... ........ ...

December ......................

Calendar year 1949 .........

January .......................

February ......................

March . ............. , .......

April ................ ........

May ...........................

June ...... ..... ..... .......

July ..........................

August ........................

Septembe r .....................

Water year 1949-50 . . .......

Peb.

315,300

a!5,600

a!6,000

a!6,500

a!7,000

17,900

18,100

18,200

18,200

18,400

18,900

19,100

19,400

19,600

20,000

20,300

20,400

20,500

20,900

21,100

21,200

21,500

21,400

20,900

20,900

20,700

20,700

20,400

Mar.

20,700

2], 300

21,500

21,800

22,100

23,300

23 , 900

24,500

25,200

25,500

25,900

25,300

24,600

24,200

23,700

23,300

23,500

24,500

25,200

25,400

25,600

26,100

26,200

26,300

26,400

26,300

26,100

25,700

25,300

25,200

25,100

Secondfoot-days

334,330

401,300

532,000

820

478,300

539,100

759,700

939,300

1,690,700

3,267,600

2,780,100

877,500

413,700

13,013,630

Maximum

12.20C

15,50!

18,001

104, 20(

17.40C

21.50C

26,40(

39,20!

86,00'

127 SO1

125, 60'

42,00 

18,50

127,80

Apr.

25,100

24,800

25,300

25,900

26,500

27,300

27,400

27,900

28,200

28,200

28,400

28,700

29,200

29,500

29 , 600

29,800

30,400

30,900

32,300

33,300

34,100

34,800

35,400

36,200

37,200

37,600

38,400

38,500

39,200

39,200

-

May

39,300

29,500

39,200

39,400

39,200

39,200

39,100

39,000

39,000

39,000

39,200

39,800

40,800

42,200

44,200

46,800

50,400

53,400

57,000

60,900

63,900

66,200

67,500

70,100

72,600

74,800

77,700

79,800

81,900

83,500

86,000

Minimum

) 8,190

) 11,700

) 16,300

1 8,190

~> 13,700

) 15,300

) 20,700

) 24,800

) 39,000

1 87,900

) 43,600

3 19,200

3 11,000

3 8,190

June

87,900

90,200

91,700

92,900

94,200

94,900

96,600

98,400

99,500

100,600

101,700

102,500

103,200

104,000

105,100

107,000

109 , 200

111,100

113,100

115,200

117,800

120,300

122,600

124,700

126,400

127,200

127,700

127,800

127,500

126,600

-

Mean

10,780

13,380

17,160

26, 910

15,430

19 250

24^500

31,310

54,540

89 , 680

28,310

13,790

35,650

July

125,500

124,400

123,200

122,200

121,200

120,100

118,800

117,100

115,400

113,500

111,000

108,400

106,100

103,100

99,800

95,600

90,400

85,600

81,500

77,600

73,200

68,700

64,400

61,200

58,200

55,200

52,200

49 , 600

47,600

45,600

43,600

Per

square 

mile

0.428

.531

.681

1.07

.612

.764

.973

1.24

2.16

4.32

3.56

1.12

.547

1.41

Aug.

42,000

40, E

39, C

37,'

00

)00

00

36,700

35,100

33, i

32, <

32,1

JOO

00

00

31,200

30,400

29,

29,: 28,'

JOO

00

00

28,000

27,400

26, <

26,

25,

JOO

500

JOO

25,100

24,400

23,

23,

22,

300

300

300

22,200

21,600

21,

20,

20,

19,

JOO

300

'00

700

19,200

Sept.

18,500

17,900

17,400

17,100

16,400

16,100

15,500

15,300

15,100

14,800

14,600

14,300

14,000

13,800

13,400

13,200

13,100

12,800

12,600

12,300

12,000

11,900

11,800

11 , 800

11,700

11 , 700

11,300

11,200

11,000

11,100

-

Runoff

Inches

0.49

.59

.79

14.48

.71

.80

1.12

1 39

2 .50

4 82

4.' 10

1.30

.61

19.22

Acre feet

663,100

796,000

1,055,000

19,480,000

948,700

1,069,000

1,507,000

1,863,000

3,353,000

6,481,000

5,514,000

1,740,000

820,600

25,810,000

Peak discharge (base, 32,000 sec.-ft.). June 28 (3 p.m.) 128,000 sec.-ft.

a Ho gage-height record) discharge computed on basis of veather records and records for nearby 

streams.
228 PEND OREILLE RIVER BASIN

Smaller Reservoirs in Fend Oreille River Basin, Mont.

Georgetown Lake on Flint Creek, 2 miles west of Southern Cross. Storage began about 1905 

ror pumpage into Warm Springs Creek for use of reduction works of Anaconda Copper Mining Co. at Anaconda, or for release through Flint Creek for power development. Usable 

capacity, 31,000 acre-feet. Records furnished by The Montana Power Co.

East Fork Rock Creek Reservoir on East Pork Rock Creek, 14 miles southwest of Philipstmrg. 

storage oegan in lacits ror irrigation in Flint Creek Valley; usable capacity, 16,000 * 

acre-feet. Records furnished by Montana State Water Conservation Board.

Nevada Creek Reservoir on Nevada Creek, 7 miles west of Finn. Storage began in 1939 for 

irrigation; usaoie capacity, 12,600 acre-feet. Records furnished by Montana State Water 

Conservation Board.

West Fork Bitterroot River Reservoir on West Fork Bitterroot River, 7 miles upstream from 

wez ferce creett ana za miles soutn of Darby. Storage began in 1940 for irrigation; 

usable capacity, 31,700 acre-feet. Records furnished by Montana State Water Conservation Board.

Como Lake on Rock Creek, 4 miles northwest of Darby. Storage began in 1909 for irrigation; 

usaoie capacity, 34,800 acre-feet. Records furnished by Bitterroot Irrigation District.

Camas Reservoirs comprise a group of four reservoirs in Little Bitterroot River Basin, 

wnicn are operated for irrigation. Records furnished by Office of Indian Affairs. 

Little Bitterroot Lake on Little Bitterroot River, 2 miles southwest of Marion; storage 

began in 1918; usable capacity, 24,000 acre-feet. Hubbart Reservoir on Little Bitterroot River, 9 miles northwest of Niarada; storage began in 1924; usable capacity, 

12,100 acre-feet. Upper Dry Fork Reservoir on Dry Fork Creek, 4 miles northwest of 

Lonepine; storage began in 1940; usable capacity, 2,700 acre-feet. Dry Fork Reservoir 

on Dry Fork Creek, 1 mile west of Lonepine; storage began in 1921; usable capacity, 

4,000 acre-feet.

Mission Valley Reservoirs comprise a group of eight reservoirs in the area east of and 

trioutary or Fiatneaa Kiver between Flathead Lake and Jocko River, whict are operated 

for irrigation. Records furnished by Office of Indian Affairs. Twin Reservoir, fed 

entirely by canals, 4 miles southeast of Poison; storage began in 1932; usable capacity, 1,210 acre-feet. Pablo Reservoir, fed entirely by canals, 3 miles south of Poison; 

storage began in 1914; usable capacity, 25,000 acre-feet. Lower Crow Reservoir on 

Crow Creek, 6 miles west of Ronan; storage began in 1933; usable capacity, 10,350 acrefeet. Kicking Horse Reservoir, fed entirely by canals, 5 miles south of Ronan; storage began in 1930; usable capacity, 8,350 acre-feet. Nine-pipe Reservoir, fed entirely 

by canals, 2 miles northeast of Charlo; storage began in 1911; usable capacity, 14,870 

acre-feet. McDonald Reservoir on Post Creek, 9 miles east of Charlo; storage began in 

1919; usable capacity, 8,220 acre-feet. Mission Reservoir on Mission Creek, 4 miles 

east of St. Ignatius; storage began in 1935; usable capacity, 7,250 acre-feet. Tabor 

Reservoir on Dry Creek, 8 miles southeast of St. Ignatius; storage began in 1919; 

usable capacity, 23,000 acre-feet.

Lower Jocko Lake on Middle Fork Jocko River, 15 miles east of Arlee. Storage began in 

iaay; usable capacity, 7,600 acre-feet. Records furnished by Office of Indian Affairs.

Thompson Falls Reservoir on Clark Fork, at Thompson Falls. For power development. Usable 

capacity, i5,uuu acre-feet. Records furnished by The Montana Power Co.

Other reservoirs of small capacity, principally on tributaries of Bitterroot River, are 

operated ror irrigation.

Monthly change in contents, in acre-feet, water year October 1949 to September 1950

Month

(Contents Sept. 30)... .

December. .............

Calendar year 1949..

April..... ............

(Contents Sept. 30). ..

Water year 1949-50..

Month

(Contents Sept. 30)...

December ..............

Calendar year 1949..

(Contents Sept. 30 j . . .

Water year 1949-50..

Georgetown 

Lake

(24,550) 

-170

-360

-2,360

-6,970

-2,870

(25,910)

+1,360

Camas 

Reservoirs

(28,740)

-620

-8,490

(35,020)

+6,280

East Pork 

Rock Creek 

Reservoir

(5,250)

-

-

(10,480)

-1-5,230

Mission 

Valley 

Reservoirs

(8,510)

+4,690

-1,810

i a 330

22 ' 880

(23,710)

+15,200

Nevada 

Creek 

Reservoir

(6,500)

+600

-

(8,040)

+1,540

Lower 

Jocko 

Lake

(120)

_

f 60

(2,150)

+2,030

West Pork 

Bitterroot 

River 

Rese"voir

(24,480) 

3-19,480

-4,350

o

-9,350

0

+2,850

(28,710)

+?,230

Thompson 

Palls 

Reservoir

(11,390)

-620

+1,480

(11,650)

+260

Como 

Lake

(2,890) 

-360

+4,640

+3,490

+4,880

+3,200

+3,500

+2,530

+3,040

+2,150

+9,690

-890

-11,380

-13,600

(8,900)

+6,010

a Interpolated on basis of readings made we 

or less frequently.

b Prom figure of contents for first day of 

following month.

c 8-month period, 

d 6-month period, 

e 2-month period. 

f 5-month period.
FEND OREILLE RIVER BASIN 229

Flint Creek near Southern Cross, Mont.

Location.--Staff gage and Cippoletti weir, lat. 46°14', long. 113°18', in NW^- sec. 36, T. 

6 w., R. 14 W., half a mile downstream from power plant, 2 miles downstream from Geora 

town Lake, 3 miles northwest of Southern Cross, and 6 miles south of Philipsburg.

Drainage area.--52.5 square miles.

Records available . October 1940 to September 1950.

Average discharge. 10 years, 35.1 second-feet.

Extremes.--Maximum discharge observed during year, 30 second-feet June 1-18, July 8 to 

Sept. 30 (gage height, 0.82 foot); minimum observed, 15 second-feet Apr. 4-15.

1940-50: Maximum discharge observed, 162 second-feet June 13, 1942 (gage height, 

1.86 feet); probably no flow Aug. 20, 1943, when generator was shut down.

Remarks. Records good. Gage read once daily. Flow regulated by Georgetown Lake (see 

preceding page) .

Cooperation.--Gage-height record furnished by The Montana Power Co., under general supervision of Geological Survey, in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

27 

27 

27 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

27 

27 

27

Nov.

27 

27 

27 

27 

27

27 

27 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

Dec.

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28 

28

Jan.

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28 

27

Feb.

27 

27 

27 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

27 

27

27 

27 

27 

27 

27

26 

26 

26 

26 

26

26 

26 

26

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

1..... ..................................

ter year 1949-50 .......................

Mar.

26 

26 

26 

26 

26

26 

25 

25 

25 

25

25 

25 

26 

26 

26

26 

26 

26 

26 

26

26 

26 

26 

26 

26

26 

26 

26 

26 

26 

26

Apr.

26 

26 

20 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

15 

15

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

Secondfoot-days

837 

833 

868

14,230

867 

748 

800 

492 

569 

878 

916 

930 

900

9,638

May

16 

16 

16 

16 

16

16 

16 

16 

16 

17

17 

18 

18 

18 

18

18 

20 

21 

21 

19

19 

20 

20 

20 

20

20 

20 

19 

18 

18 

26

Maximum

27 

28 

28

124

28 

27 

26 

26 

26 

30 

30 

30 

30

30

June

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

29 

29

28 

28 

28 

28 

28

28 

28 

28 

28 

28

July

2R 

23 

23 

23 

23

23 

23 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

Minimum

27 

27 

28

26

27 

26 

25 

15 

16 

28 

28 

30 

30

15

Aug.

30 

30 

30

30 

30

30 

30 

30 

30

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30

30

30

30 

30 

30 

30 

30 

30

Mean

27.0 

27.8 

28.0

39.0

28.0 

26.7 

25.8 

16.4 

18.4 

29.3 

29.5 

30.0 

30.0

2B.4

Sept.

30 

30 

30 

30 

30

30 

30 

30 

30

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30

30 

30 

30 

30

30 

30 

30 

30 

30

Runoff In 

acre-feet

1,660 

1,650 

1,720

28,210

1,720 

1,480 

1,590 

976 

1,130 

1,740 

1,820 

1,840 

1,790

19,120
230 FEND OfiEILLE RIVER BASIN

Flint Creek at Maxville, Mont,

Location. Water-stage recorder, lat. 46°2S'00'', long. 113°14'30", in HW^ sec. 3, T. 8, 

N.T R. 1? W., 0.4 mile west of Maxville and 1 mile upstream from Boulder Creek,

Drainage area.--Ill square miles.

Records available.--August 1941 to September 1950. 

nair a mile upstream (records not equivalent).

April 1939 to September 1941 at site

Extremes.--Maximum discharge during year, 415 second-feet June 18 (gage height, 4.00 

feet I, minimum, 35 second-feet Dec. 11 (gage height, 1.51 feet).

1941-50: Maximum discharge, 1,680 second-feet Mar. 28, 1943 (gage height, 6.79 

feet), from rating curve extended above 600 second-feet; minimum, 27 second-feet Mar. 4 

1945, Jan. 26, 1946; minimum gage height, 1.31 feet Mar. 4, 1345.

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

which are poor. Many diversions above and below station for irrigation. During irrigation season flow is supplemented by water from East Fork Rock Creek which is diverted 

in sec. 5, T. 4 H., R. 14 W. , &00 iVet below Rock Creek Dam, through a canal into Trout 

Creek, thence into Flint Creek. Some regulation by Georgetown Lake (see p. 228).

Discharge, In second-feet, water year October 1949 to September 195Q

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21

22 

£3

£4 

25

2B 

27 

28 

29 

30 

31

Oct.

91 

83 

80 

81 

84

83

80 

78 

81

77 

78 

76 

76 

76

75 

74 

74 

71 

74

78

79 

78 

77 

77

77 

77 

78 

81 

79 

77

Nov.

75 

73 

72 

72 

72

72 

72 

74 

75

74

71 

71

71 

69 

70

70 

69 

68 

68 

67

66 

66 

70 

76 

74

70 

78 

81 

73 

74

Dec.

69 

73 

67 

58 

64

64 

63 

*63 

60 

50

45 

48 

50 

50 

48

53 

55

60 

58 

55

53

55 

60 

58

55

55 

60 

65 

68 

71 

71

Jan.

68 

62 

55 

a55 

a58

a60 

a62 

a60 

58 

57

55 

55 

53 

50 

a47

a48 

847 

*48 

50 

60

90 

150 

100 

80 

65

53

55 

57 

55 

53 

50

Feb.

a50 

a50 

a52 

a55 

a58

62

66 

5 

7

1 

4 

74 

76 

82

90 

105 

98 

88

103

85 

80 

78 

88 

194

232

204 

a!25

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

a80 

a70 

a65 

a70 

a80

a75

a70 

a65

a60 

a50

a 40 

a55 

*70 

75 

76

77 

110 

153 

112 

87

81 

78 

74 

74 

73

71 

68 

66 

65 

68 

75

Apr.

116

160 

96 

79 

78

82

91 

94 

95 

83

79 

80 

90 

86 

78

78 

84 

76 

73 

74

79 

81 

76 

70 

68

66 

68 

71 

64 

88

Seeondfoot-days

2,430 

2,153 

1,824

40,104

1,916 

2,567 

2,333 

2,503 

3,311 

5,294 

3,265 

3,286 

3,523

34,4O5

May

94 

105 

105 

110 

103

96 

94 

92 

92 

95

98 

109 

115 

123 

136

137 

136 

142 

128 

107

107 

133 

126 

100

90 

91 

100 

102 

82 

69

Maximum

91 

81 

73

502

150 

232 

153 

160

142 

397 

185 

197 

188

397

June

63 

66 

54 

56 

73

1OO 

122 

121 

102

36

82 

114 

158

190 

275

251 

319 

397 

326 

275

254 

244 

200 

198 

260

189 

179 

176 

175 

189

July

185 

155 

134 

121 

115

102 

91 

87 

83 

S3

107 

94 

90 

78 

73

74 

82 

86

90 

98

92 

96 

102 

109 

113

121 

112 

118 

117 

127 

130

Aug.

128 

121 

117 

137 

147

197 

169 

145 

133 

145

127 

124 

123 

117 

114

108 

107 

105 

102 

98

94 

82 

75 

65 

68

66 

61 

60 

54 

48 

49

Minimum Mean

71 78,4 

66 71.8

45 58.8

45 110

47 61.8 

50 91.7 

40 75.3 

64 83.4 

69 107 

54 176 

73 105 

48 106 

47 117

40 94.3

Sept.

47 

48 

59 

69 

94

93 

94 

105 

122 

118

117 

120 

122 

166 

166

176 

188 

183 

152 

137

129 

126 

124 

122 

122

116 

107 

102 

102 

97

Runoff In 

acre-feet

4,820 

4,270 

3,620

79,550

3,800 

5,090 

4,630 

4,960 

6,570 

10,500 

6,480 

5,520 

6,990

68,250

Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for Flint Creek 

near Southern Cross and Trout Creek near Southern Cross.

Note.--Stage-discharge relation affected by Ice Dec. 8-28, Jan. 3, 9-14, 18-31.
FEND OREILLE RIVER BASIN 231

Trout Creek near Southern Cross, Mont.

Location.--Water-stage recorder, lat. 46°17, long. 113°20, in NWij sec. 15, T, G N., R. 

-L4 W., a quarter of a mile upstream from mouth, 4| miles southwest of Philipsburg, and 

6jr miles northwest of Southern Cross.

Drainage area.--34.8 square miles.

Records available. December L945 to September 1950.

Extremes.--Maximum discharge during year, 159 second-feet Apr. 1, from rating curve extended above 95 second-feet; maximum gage height, 4.38 feet Feb. 25; minimum discharge, 

3.8 second-feet Apr. 28 (gage height, 2.57 feet).

1945-50: Maximum discharge, 331 second-feet Apr. 16, 1948 (gage height, 5.67 feet), 

from rating curve extended above 80 second-feet by logarithmic plotting; minimum, 7.1 

second-feet Mar. 14, 1949 (gage height, 2.54 feet).

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

iOo second-feet, which are fair. Many diversions above station. During irrigation 

seasor. flow is supplemented by water from East Fork Rock Creek which is diverted in 

sec. 5, T. 4 N., R. 14 VI., 500 feet below Rock Creek Dam, through a canal into Trout 

Creek.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

41 

39 

58 

39 

40

38 

38 

36 

36 

36

36 

36 

34 

33 

33

33 

34 

33 

33 

33

33 

33 

32 

32 

31

31

30 

31 

31 

29

29

Nov.

29 

29 

29 

28 

28

27 

27 

27 

27 

27

26 

26 

26 

26 

26

26 

2G 

25 

25 

24

24

24 

25 

26 

26

24 

29 

26 

25 

25

Dec.

24 

24 

22 

21 

22

22 

20 

22 

22

19

17 

18 

19 

19 

20

21 

21 

21

21

20

20 

20 

20 

20 

17

19 

21 

20 

21 

19 

19

Jan.

19 

17 

16 

16 

17

IP

20 

21 

20

20

20 

19 

19 

18 

17

18 

19 

19 

20

36 

33 

24 

21 

18

17 

18 

19 

19 

19 

19

Feb.

19 

19 

18 

18 

18

18 

18 

17 

17 

16

16 

16 

16 

16 

18

19 

19 

17 

18 

17

16 

16 

16 

26

75

60 

36 

23

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

20 

20 

22 

27 

29

26 

24 

21 

18 

16

18

19 

20 

20

20

21 

37 

36 

26 

22

21 

21 

20 

20

20

19 

19 

18 

18 

18 

26

Apr.

74 

38 

24 

21 

21

24 

25 

26 

23 

22

23 

25 

26 

24 

22

24 

24 

21 

21

22

23 

23 

21 

21

21

20 

22 

18 

23 

23

Secondfoot-days

1,061 

788 

631

13,735

622 

618 

682 

745 

809 

872 

1,816 

2,015 

2,579

13,238

May

23 

24 

23 

24 

25

26 

27 

27 

30 

33

38

31 

28 

28

30

30 

30 

31 

29 

28

27 

27 

25 

23 

21

22 

22 

1.3

19 

20

1 

Maximum

41

29 

24

97

36 

75 

37 

74 

38 

44 

89 

93 

133

133

June

21

23 

22 

22

21

22 

23 

23 

22 

22

22 

27 

29

30

31

33 

33 

32 

35

29 

29 

29 

37 

40

36 

36

36 

41 

44

July

47 

42 

41 

43

42

38 

33 

39 

43 

45

48 

46 

53 

53

52

53

54 

58 

6? 

62

G2

63 

72 

80 

8?

89 

8C

77

re

83 

87

Minimum

29 

24

17

15

16 

16 

16 

18 

19 

21 

38 

35 

38

16

Aug.

85 

80

81 

91 

93

89 

86 

77 

83 

80

77 

78 

75 

71 

72

71 

70 

69 

67 

63

53 

45

39 

35

36

43 

43 

41 

40 

40 

39

Mean

34,2 

26.3 

20.4

37.6

20.1 

22.1 

22.0 

24.8 

26.1 

29.1 

58.6 

65.0 

86.0

36.3

Sept.

38

45 

64 

78 

94

90 

91 

94 

95 

96

95 

93 

109 

121 

118

132

133 

125 

91 

88

86 

85 

85 

84 

78

60 

55

54 

56 

48

Runoff in 

acre -feet

2, 100 

1,560 

1,253

27,230

1,230

1,230 

1,350 

1,480 

1,600 

1,730 

3,600 

4,000 

5,120

26,250

Note.--No gage-height record Jan. 4-16, War. 7-12; discharge computed on basis of weather records. 

238382 O - &3 - 16
"^ FEND OREILLE RIVER BASIN

Boulder Creek at Maxville, Mont.

Location. Water-stage recorder, lat. 46°28'30", long. 113°14'00", in SE£ sec. 4, T. 8 N., 

R. 13 W., an eighth of a mile upstream from mouth and three-quarters of a mile north of 

Maxville.

Drainage area. 71.3 square miles.

Records available.--April 1939 to September 1950.

Extremes.--Maximum discharge during year, 495 second-feet June 18 (gage height, 3.52 feet); 

minimum, 5.2 second-feet Sept. 7, 8 (gage height, 0.88 foot).

1939-50: Maximum discharge, 763 second-feet June 3, 1948 (gage height, 4.24 feet); 

minimum, 4.6 second-feet Dec. 26, 1942; minimum gage height, that of Sept. 7, 8, 1950.

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

which are poor. Several diversions above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 19EO

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

24 

22 

21 

19 

20

20 

21 

20 

20 

21

21

21

20 

20 

21

21 

20 

19 

19 

20

20 

20 

20 

20 

20

20 

21 

21 

22 

21 

20

Nov.

20 

20 

19 

19 

19

19 

20 

20 

20

20

19 

20 

20 

19 

19

16 

14 

14 

14 

13

13

13 

14 

15 

16

16 

18 

21 

19

19

Dec.

19 

22 

20

20

20

20 

20 

*20 

20 

20

19 

18 

18 

18 

19

18 

18 

19 

18 

17

17 

18 

19 

18 

18

18 

18 

19 

21 

21 

20

Jan.

19 

18 

17 

17 

17

17 

18 

18

17 

17

17 

17 

16 

16 

16

16 

17 

17 

17 

18

20 

22 

20 

19

17

16 

16 

15 

15

14 

14

Feb.

15 

15 

15 

16 

18

18 

17 

16 

16 

15

15 

16 

16 

17 

17

18 

17 

17 

17 

17

17 

17 

17 

18 

19

20 

19 

18

Month

Octo 

Hove 

Dece

Ga

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

18 

19 

19 

19 

20

20 

19 

19 

18 

17

a!7 

a!8 

*19 

19 

20

20 

22 

22 

21 

20

20 

20 

20 

20 

20

20 

19 

19 

20 

19 

19

Apr.

22 

21 

20 

20 

20

22 

23 

23 

22 

19

19 

20 

22 

22 

21

22 

24 

21 

20 

20

24

26 

22 

21 

20

19 

20 

19 

18 

18

Secondfoot -days

635 

528

590

17,132.9

530 

473 

602 

630 

2,026 

7,136 

2,837 

1,257 

465.3

17,709.3

May

20 

21 

19 

18 

19

18 

19 

19 

20 

21

24

31 

43 

52 

67

74 

83 

93 

72 

59

66 

94

126 

120 

102

a!05 

a!15 

a!20 

a!25 

129 

132

Maximum

24 

21 

22

298

22 

20 

22 

26 

132 

429 

216 

126 

26

429

June

141 

127 

116 

151 

216

253

234 

165 

135 

126

155 

209 

216 

242 

250

342 

425 

429 

352 

331

363 

345 

269 

253

250

224 

209 

195 

199 

214

July

216 

207 

175 

161 

151

148 

131 

120 

110 

112

118 

98 

85 

79 

63

62 

60 

57 

56 

59

55 

53 

51 

49 

45

46 

48 

48

50 

62 

62

Minimum

19 

13 

17

6.4

14 

15 

17 

18 

18 

116 

45 

10 

5.2

5.2

Aug.

54 

49 

46

55 

76

126 

94 

75 

66 

64

59 

59 

53 

50 

39

31 

27 

24 

23 

22

22 

21 

18 

15 

15

14 

14 

13 

12 

11 

10

Mr an

20.5 

17.6 

19.0

46.9

17.1 

16.9 

19.4 

21.0 

65.4 

238 

91.5 

40.5 

15.5

48.5

Sept.

9.1 

8.8 

8.1 

7.1 

6.0

5.7 

5.2 

5.7 

8.4 

7.7

8.1 

7.4 

14 

21 

22

22 

21 

20 

21 

21

26 

24 

18 

16 

17

22 

24 

23 

23 

23

Runoff in 

acre-feet

1,260 

1,050 

1,170

33,980

1,050 

938 

1,190 

1,250 

4,020 

14,150 

5,630 

2,490 

923

35,120

Peak discharge (base, 150 sec.-ft.). June 1 (l to 3 a.m.) 150 sec.-ft,; June 6 (1:30 a.m.) 275 

sec.-ft.; June18 (4 a.m.) 495 sec.-ft.

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge interpolated.

Note. Stage-discharge relation affected by ice Dec. 4, 5, Dec. 7 to Jan, 21, Jan. 25 to Feb. 15, 

Mar. 13-15 (no gage-height record Dec. 11-23, 26-30, Jan. 1, 7-17, Feb. 2-5; discharge computed on 

basis of weather records and records for Trout Creek near Southern Cross).
PEND OREILLE RIVER BASIN 233

Middle Pork Rock Creek near Philipsburg, Montana

Location. Staff gage, lat. 46"11', long. 113°30', in NE^ sec. 17, T. 5 TC., R. 15 W,, 

hair a mile upstream from East Fork, 2£ miles upstream from confluence with West Pork, 

and 15 miles southwest of Philipsburg.

Drainage area.--123 square miles.

Records available. September 1937 to September 1950.

Average discharge.--12 years (1938-50), 121 second-feet.

Extremes. Maximum discharge during year, 1,340 second-feet June 18 (gage h?ight, 3.57 

feet, from graph based on gage readings), minimum observed, 6.0 second-feet Dec. 11 

(gage height, 0.20 foot), from rating curve extended below 30 second-feet.

1937-50: Maximum discharge, 1,360 second-feet May 29, 1948 (gage height, 3.80 

feet), by slope-area method; minimum observed, 4.5 second-feet Dec. 9, 10, 23, 24, 

1944 (gage height, 0.02 foot).

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

twice daily. A few small diversions above station for irrigation.

Gage read

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

53 

50 

48 

43 

41

41 

40 

38 

37

31

41 

41 

39 

30 

39

36 

34 

32 

32 

30

30 

30 

28 

27 

26

26 

36 

36 

43 

45 

43

Nov.

42 

29 

34 

33 

33

34 

35 

35 

36 

36

36 

36 

36 

35 

35

35 

34 

34 

36 

34

29 

28 

29 

28 

26

28 

42 

59

70 

71

Dee.

71 

75 

66 

31 

37

39 

20 

24 

*25 

24

13 

26 

26 

24 

24

26 

26 

29 

28 

26

28 

32 

36 

34 

32

31 

33 

37 

38 

38 

38

Jan.

36 

25 

16 

17 

18

21 

26 

30 

29 

24

24 

23 

20 

19 

18

20 

*24 

28 

33 

38

42 

46 

49 

42

37

34 

32 

31 

28 

22 

18

Feb.

14 

10 

14 

28 

38

40 

38 

38 

40 

33

34 

36 

35 

35 

35

35 

34 

35 

35 

34

35 

36 

35 

37 

38

37 

35 

36

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

1... ....................................

ter year 1949-50 .......................

Mar.

31 

38 

38 

38 

39

40 

42

40 

30 

22

26 

31 

*36 

30 

35

36 

38 

35

36 

37

36 

39 

39 

41 

40

39 

39 

39 

36 

38 

39

Apr.

38 

39 

36 

39 

40

42 

41 

41 

41 

39

38 

41 

43 

48 

53

55 

55 

59 

66 

73

81 

86 

81 

79 

77

73 

71 

77 

75 

70

Secondfoot -days

1,146 

1,108 

1,037

49,747

870 

930 

1,123 

1,697 

8,199 

25,172 

10,956 

3,170 

1,695

57,103

May

71 

73 

75 

68 

61

66 

68 

66 

70 

64

66

75 

112 

149 

191

225 

285 

347 

304 

277

315 

364 

440 

476 

450

486 

565 

618 

612 

585 

575

Maximum

53 

71 

75

987

49 

40 

42 

86 

618 

1,290 

803 

175 

64

1,290

June

606

575 

560 

560 

650

821 

851 

738 

606 

565

590 

711 

827 

857 

961

1,050 

1,240 

1,270 

1,240 

1,250

1,290 

1,230 

1,080 

893 

767

662 

606 

645 

733 

738

July Aug.

733 152 

803 135 

678 127 

656 143 

623 163

570 175 

520 155 

490 130 

432 120 

391 115

427 112 

396 108 

382 108 

351 108 

300 103

285 99

277 101 

258 99 

247 86 

225 84

208 79 

201 75 

198 73 

175 71 

166 68

16C 64 

16C 64 

163 64 

15f 64 

166 64 

16C 61

Minimum

26 

26

13

13

16 

10 

22 

36 

61 

560 

155 

61 

50

10

Mean

37.0 

36.9 

33.5

136

28.1 

33.2 

36.2 

56.6 

264 

839 

353 

102 

56.5

156

Sept.

61 

61 

59 

59 

56

56 

56 

56 

56 

53

53 

50 

55 

53 

50

50 

52 

56 

61 

59

56 

59 

59 

56 

58

58 

53 

64 

61 

59

Runoff In 

acre-feet

2,270 

2,200 

2,060

98,680

1,730 

1,840 

2,230 

3,370 

16,260 

49,930 

21,730 

6,290 

3,360

113,300

Peak discharge (base,, 450 sec.-ft.) . June 7 (7 p.m.) 863 see.-ft.; June 18 (2 p.m.) 1,340 sec.- 

ft.j July 2 (7 a.m.) 917 see.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by lee Dec. 19-27, Jan. 3-19, Jan. 25 tc Feb. 4, Mar. 6- 

11.
234

Blackfoot River near Helmville, Mont.

Location.--Water-stage recorder, lat. 46°56', long. 112"57', In NWj-SWi sec. 25, T. 14 

N., R. 11 W., 2 miles downstream from Arrastre Creek and 5 miles northeast of Helmville. Datum of gage is 4,301.29 feet above mean sea level, datum of 1929 (Corps of 

Engineers bench mark).

Drainage area. 481 square miles.

Records available. September 1940 to September 1950.

Average discharge.--10 years, 322 second-feet.

Extremes.--Maximum discharge during year, 2,440 second-feet June 17 (gage height, 6.45 

feet); minimum daily, 50 second-feet Jan. 3.

1940-50: Maximum discharge, 3,180 second-feet June 6, 1948 (gage height, 7.55 

feet); minimum daily, that of Jan. 3, 1950.

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

which are poor. Several small diversions above station for irrigation. Flow includes 

natural overflow channel on left bank, but does not include unnamed diversions past 

sratlor..

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7

3 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

142 

140 

138 

138

144

147 

145 

142

140 

144

144 

144 

144 

142 

142

140 

140 

142 

142 

142

142 

142 

142 

142 

142

142 

140 

138 

142 

138 

138

Nov.

138 

137 

137 

133 

133

133 

133 

133 

133 

133

132 

132 

137 

137 

132

128 

127

127 

127 

127

126 

124 

126 

135 

133

128 

12S 

127 

126 

126

Dec.

124 

124 

122 

121 

*121

120 

105

105 

110 

90

60 

65 

65 

65 

60

65 

70 

75 

70 

65

70 

75 

80 

75 

70

70 

75 

80 

75 

70 

65

Jan.

60 

55 

5u 

55 

55

60 

60 

65 

SO 

60

70 

65 

60 

SO 

60

60 

60 

60 

65

70

75 

85 

80 

75

70

65 

60 

60 

60 

60 

60

Feb.

PO 

60 

60

65 

70

75 

80 

85 

80 

80

75 

80 

85 

90 

90

85 

85 

85 

85 

85

90 

90 

95 

100 

105

115 

115 

110

Month

Octo 

Nove 

Dece

Oa

Janu 

Pebr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

105 

110 

120 

120 

115

115 

115 

110 

105 

100

90 

95 

100 

110 *114

110 

113 

116 

114 

113

114

113 

111 

109 

109

109 

109 

108 

105 

105 

107

Apr.

127 

169 

153 

138 

133

138

147 

157 

147 

144

144 

157 

169 

182 

180

171 

182 

176 

167

163

169 

174 

167 

159 

155

149 

147 

147 

145 

142

Secondfoot-days

4,390 

3,928 

2,607

110,808

1,960 

2,380 

3,389 

4,698 

24,443 

54,770 

24,433 

10,477 

6,411

143,886

Peak discharge (base, 650 sec. -ft.). May 24 (10 a.m.

May

144 

153 

159

157 

159

161 

159 

161 

167 

169

178 

218 

326 

507 

765

1,000 

1,040 

1,190 

1,280 

1,110

955 

975 

1,400 

1,800 

1,540

1,320 

1,280 

1,440 

1,600 

1,520 

1,410

Maximum

147 

138 

124

1,740

85 

115 

120 

182 

1,800 

2,420 

1,520 

444 

234

2,420

1,840 aec.

June

1,370 

1,360 

1,260

1,240 

1,400

1,720 

1,980 

1,880

1,670 

1,440

1,410 

1,740 

2,220 

2,300 

2,270

2,330 

2,420 

2,360 

2,300 

2,230

2,250 

2,280 

2,170

1,950 

1,980

1,710 

1,440 

1.340 

1,340 

1,410

July

1,510 

1.5FO 

,4E"0 

,3E"0 

,2£0

,210 

,120 

,040 

960 

921

912 

818 

761 

710 

672

652 

641 

623 

590 

563

533

515 

501 

491 

467

455 

434 43' 

421 

431 

431

Minimum

138 

124 

60

60

50 

60 

90 

127 

144 

1,240 

421 

238 

196

50

-ft . ; June

Aug.

405 

380 

368

374 

424

444 

421 

386 

380 

434

389 

389 

402 

377 

359

335 

323

318 

309

301

298 

290 

285 

282 

277

269 

264 

259 

251 

246 

238

r«an

142 

131 

84.1

304

63.2 

85.0 

109 

157 

788 

1.826 

788 

338 

214

394

17 (6 p.m.

Sept.

234 

228 

224 

219 

216

212 

210 

212 

219 

216

219 

219 

216 

224 

226

228 

224 

216 

216 

212

210 

205 

200 

198 

196

200 

203 

203 

203 

203

Runoff in 

acre-feet

8,710 

7,790 

5,170

219,800

3,890 

4,720 

6,720 

9,320 

48,480 

108, 600 

48,460 

20,780 

12,720

285,400

2,440 sec,-

ft.

* Winter discharge measurement made on this day.

Note. Ho gage-height record Oct. 19-23, Dec. 31 to Mar. 14; discharge computed on basis of weather records and records for nearby stations. Stage-discharge relation affected by ice Dec. 7-30.
PEND OREILLE RIVER BASIN 235

Blackfoot River near Ovando, Mont.

Location.--Water-stage recorder, lat. 47°01', long. 113°07', in SW^NWij sec. 34, T. 15 II.,

 H'. 13 W., a quarter of a mile upstream from Monture Creek and 5 miles west of Ovando. 

Datum of gage is 3,917.27 feet above mean sea level, datum of 1929 (Corps of Engineers 

bench mark).

Drainage area.--1,280 square miles.

Records available.--September 1940 to September 1950.

Average discharge. 10 years, 789 second-feet.

Extremes. Maximum discharge during year, 5,870 second-feet Jane 18 (gage height, 5.72

 Feet'}; minimum, daily, 130 second-feet Jan. 3.

1940-50: Maximum discharge, 8,200 second-feet May 22, 1948 (gage height, 6.84 

feet); minimum daily, that of Jan. 3, 1950.

Floodmarks indicate stage of 10 feet reached in recent years.

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

which are poor.

Rating table, water year 1949-50 except periods of Ice effect 

[gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Mar. 14 to Apr. 14)

1.9 241 2.7 650 4.0 2,250 

2.1 305 3.0 920 4.8 3,780 

2.4 453 3.4 1,38O 5.7 5,820

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

335 

331 

331 

326 

331

339 

344 

339 

335 

339

339 

339 

339 

339 

339

339 

335 

335 

318 

335

326 

335 

331 

331 

326

326 

322 

326 

331 

331 

326

Nov.

326 

318 

318 

314 

314

314 

314 

314 

314 

318

309 

309 

326 

326 

318

309 

309 

305 

302 

302

294 

294 

305 

322 

326

322

318 

314 

309 

314

Dec.

309 

305 

294 

302 

302

*309 

250 

260 

270 

250

150 

160 

170 

160 

150

170 

200 

220 

210 

170

180 

210 

270 

250 

240

230 

240 

270 

260 

240 

220

Jan.

200 

150

130 

140 

140

150 

180 

220 

210 

210

230 

220 

190 

160 

160

160 

160 

170 

190 

230

280

320 

300 

270 

240

200 

180 

160 

160 

160 

160

Feb.

160 

160 

170 

180 

210

260 

280

300 

290 

270

250 

270 

280 

300 

300

290 

280 

280 

280 

280

290 

300 

310 

320 

330

340 

340 

330

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ... .................................

lendar year 194

ter year 1949-50 .......................

Mar.

320 

330 

350 

340 

340

340

340 

330 

310 

280

250 

270 

290 

*305 

298

298 

339 

436 

601 

553

477 

420 

358 

348 

335

326 

314 

302 

291 

294 

298

Apr.

436 

706 

608 

459 

431

465 

513 

533 

477 

453

448 

471 

513 

560 

573

567 

587 

594 

573

567

608 

666 

658 

622 

594

573 

567 

560 

507 

533

Secondfoot-days

10,318

9,397 

7,221

271,466

6,030 

7,650 

10,683 

16,422 

59,642 

130,240 

60,060 

25,939 

13,878

357,480

Peak discharge (base, 1,600 sec .-ft) .--May 18 (7 to 8

May

540 

560 

567 

560 

553

546 

540 

520 

489 

489

520 

567 

811 

1,310 

1,980

2,440 

2,740 

3,010 

2,840 

2,530

2,270 

2,560 

3,590

3,570 

3,370

3,110 

3,290 

3,680 

3,650 

3,430 

3,210

Maximum

344 

326 

309

4,560

320 

340 

601 

706 

3,680 

5,720 

3,950 

1,190 

546

5,720

June

3,170 

3,030 

2,930 

3,190

3,910

4,560 

4,510 

4,180 

3,740 

3,230

3,210 

4,140 

4,830 

5,090 

5,410

5,650 

5,630 

5,720 

5,480 

5,560

5,650 

5,510 

5,040 

4,580 

4,350

3,950 

3.450 

3,310 

3,470 

3,760

July Aug.

3,950 960 

3,910 900 

3,630 860 

3,410 870 

3,230 960

3,030 1,190 

2,820 1,120 

2,600 1.C10 

2,390 950 

2,340 1,05O

2,250 1,050 

2,040 1,010 

1,860 1,000 

1,730 970 

1,640 910

1,580 870 

1,510 820 

1,440 784 

1,390 766 

1,340 748

1,280 730 

1,200 714 

1,170 698 

1,140 690

1,090 674

1,050 650 

1,020 629 

1,030 615 

1,000 594 

990 580 

1,000 567

Minimum Mean

318 333

294 313 

150 233

150 744

130 195 

160 273 

250 345 

431 547 

489 1,924 

£,930 4,341 

990 1,937 

567 837 

436 463

130 970

Sept.

546 

540 

513 

495 

483

448 

436 

448 

453 

459

459 

453 

442 

453

471

483 

477 

465 

465

459

453 

453 

442 

436 

436

442 

442 

442 

442 

442

Runoff In 

acre-feet

20,470 

18,640 

14,320

538,400

11,960 

15,170 

21,190 

32,570 

118,300 

258,300 

119, 100 

51,450 

27,530

, 19,000

a.m.) 3,090 sec. -ft. ; May 23 (8 to 10 a.m.)

3,78o sec.-ft.; June 6 (5 to 6 p.m.) 4,670 sec.-ft.; June 18 (10 to 11 a.m.) 5,870 sec.-ft.

* Winter discharge measurement made on this day.

Note.--Ho gage-height record Jan. 10 to Mar. 13; discharge computed on basis of weather records 

and records for station near Bonner. Stage-discharge relation affected by ice Dec. 7 to Jan. 9.
236 PEND OREILLE RIVER BASIN

Blackfoot River near Bonner, Mont.

Location. Staff gage, lat. 46°54', long. 113°47', in SW^SW^ sec. 8, T. 13 N. , R. 17 

w., 4 miles northeast of Bonner, 6 miles downstream from Union Creek, and 6 miles upstream from mouth.

Drainage area. 2,280 square miles.

Records available.--October 1939 to September 1950. July 1898 to October 1905 at mouth, 

hair a mile west of Bonner, records not equivalent.

Average discharge. 11 years (1939-49) 1,402 second-feet.

Extremes.--Maximum discharge during year, 9,400 second-feet June 21 (gage height, 8.33 

rest, from graph based on gage readings); minimum daily, 200-second-feet Jan. 4, 5. 

1939-50: Maximum discharge, 16,300 second-feet May 22, 1948 (gage height, 11.3 

feet, from floodmark); minimum daily, that of Jan. 4,5, 1950; minimum gage height 

observed, 0.47 foot Dec. 12, 1940.

Remarks.--Records fair except those for periods of ice effect, which are poor. Gage read 

once daily. Many diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1930

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

510 

505 

495 

490 

490

495 

500 

500 

510 

525

515 

500 

485 

490 

495

505 

505 

490 

485 

490

490 

480 

480 

480 

490

490 

485 

490 

500 

500 

495

Nov.

490 

490 

485 

480 

480

48O 

475 

475 

480 

490

500 

515 

515 

510 

500

500 

495 

490 

490 

490

495 

495 

510 

530 

550

565

570 

570 

565 

560

Dec.

560 

555 

550 

550 

550

525 

*475 

475 

500 

350

250 

275 

275 

275 

250

300 

350 

400 

400 

350

300 

350 

450 

500 

450

425 

425 

500 

550 

500 

475

Jan.

425

325 

225 

200 

200

225 

300 

400 

425 

425

450 

450 

400 

300 

250

250 

250 

275 

300 

375

450 

550 

600 

550 

475

400 

350 

325 

275 

250 

250

Feb.

250 

250 

275 

300 

350

450 

525 

525 

550 

500

475 

500 

525 

550 

575

550 

525 

500 

500 

500

525 

550 

575 

600 

650

700 

700 

675

Month

Goto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

1. ......................................

ter year 1949-50 .......................

Mar.

650 

675 

710 

*634 

682

699 

710 

727 

700 

600

450 

500 

575 

675 

732

750 

801 

842 

819 

913

925 

913 

883 

866 

866

819 

772 

694 

628 

716 

750

Apr.

1

1 

1, 

1

1 

1

1 

1 

1, 

1, 

1

1 

1

1 

1 

1,

1, 

1 

1, 

1 

1,

1, 

1, 

1, 

1, 

1

Secondfoot-days

15,360 

15,240 

13,140

494,918

10,925 

14,150 

22,676 

41,877 

134,990 

219,890 

104,000 

45,160 

23,837

661,245

Peak dlsoharee (base. 2,500 see. -ft.). June 7 (3 a.m.

795 

842 

395 

985 

010

030 

060 

080 

110 

160

190 

200 

230 

270 

310

370 

430 

520 

630 

710

760 

810 

830 

870 

850

830 

800 

800 

780 

720

May

1,740 

1,760 

1,800 

1,810 

1,850

1,900 

1,960 

2,040 

2,110 

2,230

2,270 

2,380 

2,490 

3,150 

4,710

5,780 

6,420 

6,700 

6,450 

5,840

5,280 

5,380 

6,420 

6,780 

6,500

6,140 

6,220 

6,800 

7,060 

6,720 

6,300

Maximum

525

570 

560

"8,800

600 

700 

925 

1,870 

7,060 

9,190 

6,780 

1,730 

1,080

9,190

June

6,140 

5,950 

5,660 

5,790 

6,590

7,570 

7,830 

7,350 

6,660 

5,940

5,620 

6,480 

7,570 

8,140 

8,560

8,980 

9,160 

9,190 

9,140 

9,040

9,190 

9,040 

8,440 

7,760 

7,450

6,820 

6,030 

5,860 

5,920 

6,020

July

6,460 

6,7f1 

6,400 

5,9?1 

5,6fO

5,410 

5, ICO 

4,750 

4,370 

34,060

33,800 

33,530 

3,260 

3,010 

2,820

2,640 

2,500 

2,410 

2,320 

2,240

2,190 

2,100 

2,010 

1,920 

1,830

1,760 

1,720 

1,700 

1,720 

1,770 

1,730

Minimum

480 

475 

250

250

200 

250 

450 

795 

1,740 

5,620 

1,700 

1,110 

732

200

} 7,970 see.-ft.j June

Aug.

1,680 

1,630 

1,610 

1,590 

1,620

1,730 

1,720 

1,680 

1,620 

1,600

1,570 

1,610 

1,590 

1,540 

1,430

1,400 

1,410 

1,400 

1,400 

1,380

1,370 

1,370 

1,340 

1,330 

1,330

1,300 

1,260 

1,220 

1,180 

1,140 

1,110

H'tan

495 

508 

424

1,356

352 

505 

731 

1,396 

4,355 

7,330 

3,355 

1,457 

795

1,812

21 (5 p.m.

Sept.

1,080 

1,040 

943 

860 

807

790 

778 

778 

767 

761

755 

744 

738 

738 

750

767 

778 

767 

750 

750

732 

761 

784 

807 

813

790 

778 

755 

744 

732

Runoff In 

acre-feet

30,470 

30,230 

26,060

981,600

21,670 

28,070 

44,980 

83,060 

267,700 

436,100 

206,300 

89,570 

47,280

1,311,000

) 9,400 sec.-

ft.

* Winter discharge measurement made on this day. 

3 No gage-height record; discharge Interpolsted. 

Note. Stage-discharge relstion sffeoted by ice Dec. 5 to Mar. 2, Mar.
FEND OREILLE RIVER BASIN 337

Nevada Creek above reservoir, near Finn, Mont.

Location.--Water-stage recorder, lat. 46°47', long. 112°46', In Sw£ sec. 20, T. 12 N., R. 

s W. , 2 miles upstream from Buffalo Creek and 3 miles west of Finn.

Drainage area.--128 square miles.

Records available. April 1939 to September 1950.

Average discharge. 11 years (1939-50), 33.0 second-feet.

Extremes.--Maximum discharge during year, 1,360 second-feet Apr. 1 (gage height, 5.81 

rest) , from rating curve extended above 200 second-feet; minimum daily, 3 second-feet 

Dec. 11.

1939-50: Maximum discharge, 1,440 second-feet Apr. 16, 1948, from rating curve 

extended above 350 second-feet; maximum gage height, 6.09 feet Mar. 18, 1947 (ice Jam); 

minimum discharge probably less than 2 second-feet at times in January and February 

1944.

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

which are poor. Several small diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.4 

4.1 

4.1

3.7 

5.9

5.9 

5.5 

7.0 

7.7 

8.5

8.9 

8.9 

8.5 

8.5 

8.9

9.3 

8.9 

8.5 

9.6 

9.3

11 

12 

12 

11 

11

11

12 

12 

11 

11

10

Nov.

11 

11 

11 

11 

11

12 

12 

11 

12 

12

11 

11 

12 

12 

12

12 

11 

10 

11 

10

9 

10 

12 

14 

15

14 

20 

16 

14 

14

Dec.

14 

13 

10 

7 

*8

8 

5 

5

6 

6

3 

5 

6 

6 

5

5

6 

7 

6 

5

6 

8 

8 

7 

7

7 

8 

10 

12 

12 

11

Jan.

10 

8 

8

a8'

8 

9 

10 

10 

10

9 

9 

8 

8 

8

*8 

8 

8 

8 

9

11 

13 

16 

12

9

9 

9 

9 

8 

7 

7

Feb.

7 

7 

7 

8 

8

9 

9 

9 

9 

8

8 

8 

8 

9 

9

10 

10 

10 

10 

10

11

11 

12 

13 

15

18 

17 

15

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lender year 1949

1............... ........................

ter year 1949-50 .......................

Peak discharge (base, 160 sec. -ft. . Mar.

sec. -ft.; Apr. 6 (-10 p.m.) 392 sec. -ft. ; Apr

Mar.

13 

13 

15 

20 

19

18 

17 

15 

12 

9

8 

8 

9 

10 

*12

20 

60 

150 

313 

241

190 

130 

99 

76

60

50 

45 

40 

40 

45 

100

Apr.

532 

358 

141 

100 

120

175 

225 

132 

110

100

105 

116 

141 

116 

84

86 

83 

63 

50 

46

53 

56 

48 

42

37

32 

31 

29 

29 

28

Secondfoot-days

270.1 

364 

232

11,811.3

282 

285 

1,857 

3,268 

2,120 

3,679 

1,002 

686 

292.1

14,337.2

19 (12:30 a 

. 13 (6:30 p

May

31 

33 

34

30 

28

27 

25 

26 

26 

22

21

25 

32 

42

63

78 

92 

106 

102 

81

68 

75 

119 

139 

116

98 

99 

119 

136 

121 

106

Maximum

12

20 

14

568

16 

18 

313 

532 

139 

201 

56 

44 

13

532

June

111 

114

96 

87 

99

125 

149 

148 

142 

102

110 

127 

167 

155 

146

134

170 

201 

147 

126

117 

102 

99 

113 

164

117 

94 

85 

71 

61

July

56 

53 

49 

46 

48

41 

32 

24 

25 

34

38 

34 

36 

23 

24

2G 

25 

24

28 

28

28 

28 

31 

23 

27

28 

24 

23 

23 

32 

3?

Minimum

3.7 

9 

3

2.6

7 

7 

8 

28 

21 

61 

23 

12 

7.4

3

Aug.

29 

26 

26 

29 

40

44

33 

29 

28 

28

25 

26 

24 

23 

21

21 

19 

19 

19 

17

17 

17 

16 

16 

15

15 

14 

13 

13 

12 

12

»-«an

8.71 

12.1 

7.48

32.4

9.10 

10.2 

59.9 

109 

68.4 

123 

32.3 

22.1 

9.74

39.3

Sept.

11 

11 

11

10 

7.4

7.4 

7.4 

8.8 

12 

10

10 

9.4 

9.7 

13 

12

13

11 

11 

10 

10

9.7 

9.7 

9.1 

7.7 

7.4

8.8 

8.5 

8.2 

8.8 

9.1

Runoff In 

acre-feet

536 

722 

460

23,430

559 

565 

3,680 

6,480 

4,200 

7,300 

1,990 

1,360 

579

28,430

.m.) 380 sec. -ft.; Apr. 1 (6 p.m.) 1,360 

.m.) 203 sec. ^ft.; June 9 (l a.m.) 173 seo.-

ft.; June 17 (10 p.m.) 356 sec.-ft.; June 25 (2 a.m.) 209 sec.-ft.

* Winter discharge measurement made on this day.

Note. No gage-height record Feb. 27 to Mar. 14, Mar. 25-31, Apr. 4, 5, 9-11; discharge computed 

on basis of weather records. Stage-discharge relation affected by loe Nov 18-22, Dec. 3 to Feb. 26, 

Mar. 15-18.
PEND OREILLE RIVER BAGIN

rfe?t Fork Bitterroot River near Conner, Mont.

Lccation. ifarer-atace recorder, lat. 45°44', Ions. 114°17', in NErNWi sec. S6, T. IS.,

ceiow W?st Fork Dam, 6 mils rorr, Nez Peree Creek, ana

ib miles eoathwest of Conner.

Drainage area. S22 square miles.

Record;: available.--April 1941 to September 1950.

Extreme 3.--Maxim discharge during year, 1,860 second-feet June 7 (gage height, 4.38

; minimum, 3.8 second-feet Nov. 2 (gage height, 0.61 foot)

1941-50: Maximum discharge, 4,060 second-feet May 9, 1947

leet); minimum, O.C second-loot Nov. 35, 194<d.

Remarks. Records good 6x;ec r those for periods of ice effect or no gage-height record,

wnieh are pjor. Flow regulated by W-^st Fork Bitterroot- River Re

Small diversions abcv- station for irrigation.

Discharge, in second-feet, water year October 1949 to September 19!fo

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16

n

18 

19

£0

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

424 

E30 

580 

575 

570

560 

550 

545 

540

531 

531 

521 

512

507

497 

438 

478

356 

91

79 

104 

172 

232

232

266 

303 

303 

299 

296 

288

Nov.

284 

233 

274 

266 

249

245 

235 

235 

228 

?15

81 

48

101

96

60 

41 

41 

44 

44

44 

44 

44 

47 

51

54 

338 

147

122 

114

Dee.

103 

96 

81 

62

59

a65 

a 65 

370 

a 70 

a70

a70 

a70 

a70 

a70 

*b72

t75 

b75 

b75 

b75 

b75

a75 

a75 

b75

a75

b75

a75

a75 

b75 

375 

74 

b75

Jan.

b75 

b75

s 75 

a 75 

a 70

970 

a70 

a70

a70

a70 

a70 

t70 

370 

970

370 

a70 

a70 

370 

a70

370

370 

370 

a70 

370

a70 

365 

b65 

a65 

365 

a 65

Feb.

a65 

a65

a65 

a65

365 

a65 

a 65 

a 65 

365

365 

bS5

b60

b60 

b60

b?0

beo

b60 

360 

b60

beo

bbO

beo

b60 

59

60 

*47

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ler.dar year 1949 

ai*y

h. ......................................

ter year 1949-50 .......................

Mar.

24

24 

24 

25

27

27 

28 

28 

29 

29

29 

30 

30 

*0 

30

32 

.54 

33 

.14 

34

34 

35 

38 

38 

38

35 

38 

38 

38 

35 

4G

Apr.

46 

47 

47 

47 

48

51 

54 

59

60 

62

65

74 

74 

75

75 

79 -, 7

74 

72

70

68

es

121

228 

228 

228 

228

Secondfoot-days

12,525

3,895 

2,295

105,807

2,165 

1,689 

994

20,496 

41,841 

11,548 

3,896 

3,9P2

108,112

May

228 

225 

221 

221 

221

221 

221 

221 

221 

218

218 

218

221 

221

221

228 

232 

242 

266 

721

890 

1,010 

1,470 

1.K10 

1.42C

1,310 

1,400 

1 , *3Q 

1,660 

1,580 

1,510

Maximum

580

284 

103

2,260

75 

65 

40 

228 

1,660 

1,820 

858 

182 

170

1,820

June

1,490 

1,490 

1,^80 

1.330 

1,420

1,700 

1,820 

1,660 

1,430 

1,250

1,190 

1,270 

1,390 

1,410 

1,500

1,620 

1,730 

1,670 

1,610 

1,550

1,570

1,640 

1,490 

1,340 

1,200

1,040 

955 

916 

896 

884

July

858 

813 

748 

694 

638

580 

531 

483 

450 

42f

424 

384 

351

32e

311

292 

277

266 

259 

252

238 

228 

218 

2C8 

133

192

18S 

179 

176 

182 

182

Aug.

17C 

161 

161 

161 

170

182 

170 

155

150 

147

139 

139 

137 

132 

127

120 

114 

109 

103 

99

99 

98

3^ 

96 

101

103 

99 

36 

90 

88 

84

1 

Minimum Mean

79 4C4 

41 130 

59 74.0

41 290

65 69.8 

23 60.3 

24 32.1 

46 92.8 

218 661 

884 1,395 

176 373 

84 126 

74 133

23 296

Sept.

81

81 

79

75

75 

74 

75 

84 

88

140 

157 

75 

101 

170

170 

17^ 

170 

170 

170

170 

170 

170 

170 

170

170 

170 

173 

170 

170

Runoff in 

acre- feet

24,840 

7,730 

4,550

209,900

4,230 

',350

1,970 

5,520 

40,650 

82,990 

22,910 

7,730 

7,900

214,400

Winter discharge measurement made on this dsy. 

a No ggge-height record; discharge interpolated, 

b Stage-discharge relation afTected by ice.
PEND OREILLE RIVER BASIN

Bitterroot River near Darby, Mont.

Location.--Water-stage recorder, lat. 45°59', long. 114°09', in NE£ sec . 36, T. 3 N., R.

idi w. , just below bridge on U. S. Highway 93, a quarter of a mile downstream from

Chaffin Creek and 4 miles southeast of Darby. Datum of gage i& 3,943.14 feet abcve

mean sea level datum of 1929, supplementary adjustment of 1947. 

Drainage area.--1,050 square miles. 

Kecords available . April 1937 to September 1950. 

Average diacnarge. 13 years, 858 second-feet. 

Iflctr ernes. MaxIJnam discharge during year, t.y.SO second-feet June 17; maximum gage height,

b.4b feet June 22; minimum discharge, 164 pecond-feet Jan. 3 (gage height, 1.17 feet). 

1937-50: Maximum discharge. 11,500 second-feet May 9, 1947 (gage height, 8.18

feet); minimum observed, 71 second-feet Feb. 9, 1939.' 

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

which are poor. Some regulation by West Pork Bitterroot River Reservoir (see p. 228 ).

Many diversions above station for irrigation.

Rating tables, water year 1949-50, except periods of Ice effect

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used June 18-21, June 23 to July 14)

to Sept. 30

1.3 195

1.5 25C

1.8 ?SO

2.1 540

2.5 820

2.9 1,190

3.5 1,910

4.0 2,500

5.0 4,240

6.0 6,200

1.7 23 .<

1.9 315

£.3 535

2.7 S4E

3.2 1,340

4.0 

4.8 

5.8 

6.3 

6.5

2,260 

3,410 

5,280 

6,390 

C,870

Discharge, in second-feet , water year October 1349 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

534 

628 

719 

705 

712

712 

712 

712 

705

712

691 

684 

677 

65 f 

649

642 

628 

621 

594

326

278 

£66 

314 

375 

390

405 

46 C 

480 

570 

522 

492

Nov.

475 

460 

435 

470 

465

455

445 

440 

445 

440

355 

266 

258 

£94 

£94

282 

a250

a£20 

a£10 

a£10

a£C5 

hZOS

a 2 40 

a270

a290 

h558 

a 700 

a600 

a500

Dec.

420 

430 

375 

298 

322

b300 

£82 

298 

£90

a£60

a£4C 

a£40 

a£50 

*£54 

250

262 

250 

262 

£54 

£20

247 

244 

247 

£50 

223

£29

250 

£58 

241 

238 

213

Jan.

bZlO 

b200 

138 

198 

200

220 

226 

235 

£38

232

226 

a220 

a£10 

a200 

b200

a200 

a200 

a200 

a220

266

330 

395

326 

294

*b220 

b210 

bEOO 

b£0o 

b!95 

b!90

Feb.

b!90 

b!95 

b200 

b220 

258

258

250 

'66 

£38 

254

229 

£32 

EE9 

££9 

£35

£41 

£54

£50 

244 

247

241 

244 

244 

313 

498

558

s?e

*410

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

h.. .....................................

ter year 1949-50 .......................

Mar.

375 

365 

350 

345

405 

370 

34b 

335 

310

235 

£54 

29U

28? 

27«

302 

340 

330 

314

306

296 

298 

298

286 

2-79 

274 

254 

262 

28£

Apr.

405 

6£1 

534 

460 

435

435

460 

492 

498 

480

480 

528 

635 

891

670

64£ 

756 

804 

780 

736

963 

1,170 

1,090 

90C 

820

909 

918 

89£

828 

788

Secondfoot-days

17,571 

10,957 

8,402

363 ,809

7, £24 

7,808 

9,602 

20,880 

74,785 

146,460 

52,238 

13,675 

9 , 609

379, £11

May

796 

876 

820 

780 

748

726 

712 

705 

7E6 

748

828 

1,090 

1,640 

2,350

2,900

£,800 

£.880 

2,960 

£,480 

£,4£0

£,540 

3,110

4,380 

4,380 

3,920

3,760 

4,170 

4,750 

4,750 

4,620 

4,420

Maximum

719

700 

430

7,250

395

576 

405 

1,170 

4,750 

6,640 

4,270 

672 

414

6,640

June

4,380

4, £90 

3,850 

3,980 

4,530

5,500

5,600 

4 , 940 

4,160 

3,780

3,330 

4,400 

4,770 

4,790 

5,400

5,070 

6,640 

6,4£C 

6,070 

5,860

6,120

6, £00 

5,260 

4,860 

4,460

3,970 

3,840 

3,970 

4,120 

4,250

July

4,270 

4,010 

3,550 

3,310

3,080

2 , 820 

£ , 650 

£,390 

£,150 

£.070

£,010 

1 , 680 

1,500 

1,420 

1,540

1,240 

1,160

1,060 

1,040 

1,040

959

912 

845 

80 £ 

777

736 

696 

696 

680 

680 

665

Minimum

£66 

£05 

£18

175

190

190 

£35 

405 

705 

3,780 

665 

£70 

£34

190

Aug.

598 

570 

570 

584 

591

67£ 

620 

570 

535 

517

487 

487 

475 

458 

448

431

409 

377 

376 

365

350 

340 

335

330 

345

340 

325

310 

30£ 

288 

270

M°an

567 

365 

271

997

£33 

£79 

310 

696 

2,412 

4,882 

1,685 

441 

320

1,039

Sept.

262 

258 

£54 

£50 

£4C

£4£ 

234 

£34 

£6£

£56

£54

345 

270 

£84 

330

365 

58?.

382 

387 

387

370 

360 

355 

345 

345

365 

414 

39£

387 

38£

ac^e-ree?

34,850 

21,730 

16,670

721,000

14,330 

15,490 

19,050 

41,410 

148,300 

£90,500 

103,600 

£7,120 

19,060

75£,100

Peak discharge (base. £,500 sec.-ft.).--May 18 ^9 a.m.) 3,120 sec.-ft.; May £8 (8:30 a.m.) 4,900 

see.-ft.; June 7 (1 p.m.) 5,840 sec.-ft.; June 17 (4 a.m.) 6,930 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of temperature records or on basis of recorded 

range In stage and records for West Fork Bitterroot River near Conner and East Fork- Bitterroot River 

at Conner.

b Stage-discharge relation affected by ice.

h Computed from staff-gage reading.
240 PEND OREILLS RIVER BASIN

East Fork Sitterroot River at Conner, Mont.

Location.--Wire-weight gage, lat. 45"56', long. 114 "08' , in SE^ sec. 7, T. 2 N., R. 20 _

 W., below highway bridge at Conner and half a mile upstream from confluence with West 

Fork.

Drainage area. 404 3quare miles.

Records available.--April 193? to September 1950. September 1910 to oeptember 1916 at

 site ~i\ miles upstream.

Average discharge. 13 years, 247 second-feet.

Extremes.--Maximum discharge during year, 2,380 second-feet June 16 (gage height, 4.70

 feet, from graph based on gage readings); minimum observed, 30 second-feet Dec. 12 

(gage height, 0.95 foot).

1937-50: Maximum discharge 3,760 second-feet May 29, 1948; maximum gage height 

observed, 5.78 feet May 9, 1947; minimum dischar-o-c observed, 1.4 second-feet Aug. 17, 

1937.

Remarks. Records fair except those for periods of ice effect, which are poor. Gage reac 

twice daily. Several diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1E50

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

Oct.

91 

86 

75 

77

89

103 

106 

103 

98

96 

91 

86 

77 

73

a74 

75 

80 

82 

82

80 

80 

80 

71 

73

71 

71 

91 

116 

103 

91

Nov.

89 

89 

89 

89 

84

77 

75 

80 

91 

89

86 

84 

77 

77

77

73 

71 

62

60 

75

86 

101 

118 

121 

126

129 

145 

211 

159 

148

Dec.

121 

126 

89 

58 

84

80 

89 

96 

89 

71

64 

42 

SO 

*65 

75

75 

75 

75

70

70

75 

75 

80 

75 

70

80 

85 

90 

90 

90 

80

Jan.

80 

75 

70 

70 

75

80 

90 

100 

100 

100

95 

90 

90 

85 

85

85 

85 

90

100 

110

130 

150 

140 

110 

100

95

90 

*90 

85

80 

80

Feb.

80 

80 

90 

100 

110

110 

110 

110 

110 

105

100 

100 

100 

100 

100

105 lie

110

110 

110

110 

110 

110 

120

150

170 

*185 

160

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

"

ter year 1949.50 .......................

Mar.

131

140 

137 

145 

159

181

140 

116 

137

116

58 

94 

140 

111 

111

103 

126 

159 

131 

124

118 

129 

111 

113 

118

101 

108 

108 

96 

106 

121

Apr.

178 

208 

188 

148 

151

156 

172 

181 

178 

175

162 

178 

218 

221 

211

211 

246 

250 

242 

250

291

3S3 

332 

284

264

253 

246 

235 

204 

188

Secondfoot-days

2,667 

2,938 

2,464

104,023

2,905 

3,165 

3,788 

6,594 

20,661 

49,520 

15,412 

4,729 

2,829

117,672

May

211 

225 

235 

211 

208

211 

197 

194 

204

204

211

276 

381 

484 

701

840 

905 

1,000 

854 

753

740 

798 

1,080

1,120 

1,010

988 

1,110 

1,330 

1,360 

1,330 

1,290

Maximum

116 

211 

126

2,830

150 

185 

181 

363 

1,360 

2,280 

1,190 

225 

113

2,280

June .

1,300 

1,270 

1,120 

1,210 

1,320

1,640 

1,880 

1,650 

1,370 

1,220

1,350 

1,580 

1,880 

1,990 

2,160

2,280 

2,250 

2,210 

2,160 

2,050

2,100 

2,110 

1,830 

1,770 

1,650

1,350 

1,200 

1,190 

1,220 

1,210

Minimum

July

1,1?0 

1,120 

988 

905 

833

6£4 

6S8 

579 

561 

597

615 

507 

462 

415 41'J

372 

39C 

381 

368 

354

341 

332 

293

287 

280

246 

250 

239 

23-9 

242 

228

71 

60 

42

40

70 

80 

5.8 

148 

194 

1,120 

228 

86 

77

42

Aug.

225 

211 

214 

214 

225

225

201 

197 

188 

186

184 

172 

175 

159 

159

142 

142 

131 

124 

118

121

116 

108 

108 

111

108 

98 

98 

94 

89 

86

H?an

86.0 

97.9 

79.5

285

93.7 

113 

122 

220 

666 

1,651 

497 

153 

94.3

322

Sept.

89

80 

80 

77 -77

77 

77 

80 

84 

82

82

80 

34 

96 

96

101 

111 

106 

108 

111

106 

101 

103 

94 

94

103 

113 

108 

108 

111

Runoff In 

acre-feet

5,290 

5,830 

4,890

206,300

5,760 

6,280 

7,510 

13,080 

40,980 

98,220 

30,570 

9,380 

5,610

233,400

Peak discharge (tease. 700 see.-ft.). May 18 (12:30 p.m.) 1.070 sec.-ft.; May 28 (12 p.m.) 1,480 

see.-ft.; June 7 (2:30 p.m.) 2,020 sec.-ft. ; June 16 (lo a.m.) 2,380 sec.-ft.

* Winter discharge measurement made ©n this day.

a No gage-height record; discharge Interpolated.

Note.--Stage-discharge relation affected by lee Dec. 13 to Feb. 28 (no gage-height record Dec. 25"]":
FEND OREILLE RIVER BASIN 241

Rock Creek near Darby, Mont.

. Drainage area. --55. 5 square miles

^Tntarv^a^TfrnT^r ^ 1° SsP tember 195°- April 1946 to September 1948 (frag- m^ntdryj at site u.b mile downstream

Extremes . --Maximum discharge during year, 1,580 second-feet June 17 (gag° height 5 19 

No^e-se?"1 ^ CUPVe sxtended above 38° second-feet; minimum, O.l'second-foot 

27-3o! 6 l946. MaXlmLlm dlscharge, that of June 17, 1950; no flow Apr. 6, 18, 19, May

Remtnk H^?eC?rdS g°?d SXS9pt th° Se bslow 2 second-feet, which are poor. Plow regulated

lS?ti caP ac "y of Cono Lake (see p . 228). Small diversions Love station for

irrigation. Greater part of flow diverted by Rock Creek Canal, 0.7 mile below station.

.9

1.0

1.1

Rating tables, water year 1949-50 (gage height, In feet, 

/ ,., and discha>"ge, in second-feet) 

(Shifting-control method used Apr. 27 to June 16)

Oct. 1 to June 16

1.3 e.;

1.5 18

1.7 33

1.9 53

2.3 107

2.8 

3.1 

3.4 

3.8 

4.2

205 

290 

400 

590 

84O

2.2 

2.4

2.7 

3.0

June 17 to Sept. 30

111

145

205

290

3.4 

4.0 

4.4 

4.9

440

750

1,010

1,360

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

89 

86

75

63 

27

.8 

.8 

.7 

.7 

.7

.7 

.6

.6 

.6

.6

.6

.6 

.6

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5 

.5

Nov.

0.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.5 

.5 

.5 

.5

Dec.

0.6

.r 

.6

,F 

.6

.6 

.6 

.6 

.7

.7 

.7 

.7 

.7

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8 

.8

Jan.

0.8 

.8 

.8 

.8

.8

.9

.8 

.8

.8 

.8

.8 

.8 

.8

.8

.8 

.8 

.8 

.8 

.9

.9 

.9 

.9

.8

.8

.8 

.8 

.8 

.8 

.8 

.8

Feb.

0.8 

.8 

.9 

.9 

.9

.9

.9 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0

1.1 

1.1

1.2

1.2 

1.2

1.2 

1.2 

1.2 

1.4

1.4

1.4 

1.4 

1.4

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

1.5 

1.5 

1.5 

1.5 

1.6

1.6 

1.6 

1.6 

1.7 

1.7

1.8 

1.8 

1.8

1.8

1.8 

1.9 

1.9

2.0 

2.0

2.0 

2.0 

2.0 

2.1 

2.1

2.1 

2.4 

2.4 

2.4

2.6 

2.6

Apr.

3.1 

3.1 

2.8 

2.8 

2.8

3.1

3.1 

3.4 

3.4

3.6

3.6 

3.8 

3.8 

4.1 

4.1

4.1 

4.1 

4.1

16 

38

38 

39 

54

120 

120

120 

131 

198 

245 

245

Secondfoot-days

355.5 

12.9 

22.5

50,989.3

25.3 

30.5 

59.0 

1,426.9 

9,398 

17,424 

14,578 

7,726 

S,943

58,001.6

May

245 

245 

242 

245 

242

242 

E39 

257 

263 

263

278 

287 

287 

287 

290

290 

294 

322 

328 

332

332

336 

346 

350 

356

356 

356 

368 

372 

372 

376

Maximum

89 

.5 

.8

1,050

.9 

1.4 

2.6 

245 

376

1,340

1,020 

269 

275

1,340

June

360 

342 

342 

328 

284

205 

188 

180

172 

172

174 

176 

182 

346

620

1,040 

1,340 

1,270 

1,090 

1,060

1,140 

1,160 

947 

822

640

545

440 

485 

600 

774

July

898 

1,020 

968 

864 

816

762 

69C 

670 

61E 

58C

55C 

50C 

405 

33F 

336

336 

332 

318 

294 

290

281 

281 

284 

284 

284

281 

275 

263 

254 

254 

257

Minimum

0.5 

.4

.6

.4

.8 

.8 

1.5 

2.8 

239 

172 

254 

210 

121

.4

Aug.

260 

260 

266 

251 

257

242 

212 

222 

239 

248

257 

269 

248 

239 

210

215 

218 

242 

251 

251

251

254 

260 

257

266

266 

263 

260 

263 

263 

266

f»an

11.5 

.43 

.73

140

.82

1.09 

1.90 

47.6 

303 

581 

470 

249 

231

159

Sept.

269 

275

272 

272 

275

275 

275 

272 

269 

272

275 

272 

269

2-66 

266

245 

222 

226 

218 

215

212 

21C

205 

175

165

169 

165 

163 

121 

158

Runoff In 

acre-feet

705 

26 

45

101,100

50 

60 

117 

2,830 

18,640 

34,560 

28,920 

15,320 

13,770

115,000
242 FEND OREILLE RIVER BASIN

Rock Creek Canal near Darby, Mont.

Location.--Staff gage, lat. 46°04', long. 114°13>, in SV£ sec. 28, T, 4 N., R. 21 W., 

a quarter of a mile downstream from diversion dam, lj miles downstream from Corao 

Lake, and 4 miles northwest of Darby.

Records available. April to September 1946, May 1948 to September 1950 (irrigation 

seasons only).

Remarks.--Records poor. Gage read once daily. Canal diverts from Rock Creek for irrigation of land in vicinity of Hamilton. During irrigation seasons water may be diverted from Lost Horse Creek into canal below station near southwest corner of sec. 

22.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

e

7

a

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29

30 

31

Oct.

t69

Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Th

lendar year

St......................................

e period ................................

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

5 

15

25 

30 

35

75 

75

75 

75 

125

170 

170

Secondfoot-days

875 

7,706 

4,319 

7,300 

7,144 

5,780

-

May

170 

170 

175 

175 

175

175 

185 

200 

205 

210

225 

225 

225 

225 

225

225 

225 

250 

265 

275

290 

300 

310 

320 

320

320 

320 

331 

330 

330 

330

Maximum

170 

331 

330 

265 

242 

240

-

June

330 

300 

275 

240

215

145 

140 

120 

110

115

120 

120 

115 

135

180

120 

100 

140 

125 

120

120 

120

90 

90 

94

95 

95 

110 

125

115

Minimum

July

144

137 

141 

141 

141

141 

d255 

d2£0 

d2£0 

d260

d260 

d260 

d262 

d262 

d262

d262 

d262 

265 

d265 

d265

d265 

d265 

d265 

d265 

d265

d263 

d260 

d250 

d240 

d230 

d225

0 

170 

90 

137 

200 

120

-

Aug.

d235 

238 

d235

3230 

3225

d210 

d205 

212 

234 

234

234 

234 

234 

d210 

d200

d205 

3210 

d225 

239 

239

239 

242 

239 

242 

242

242 

242 

242 

242 

242 

242

K?an

29.2 

249 

144 

235 

230 

193

-

Sept.

d240 

240 

240 

240 

240

d240 

240 

240 

240 

240

240 

240 

240 

240 

d225

200 

175 

170 

170 

165

165 

160 

14O 

130

120

120 

120 

120 

120 

120

Runoff In 

acre-feet

1,740 

15,280 

8,570 

14,480 

14,170 

11,460

65,700

t Result of discharge measurement.

d Doubtful' gage-height record; discharge computed on basis of records for Rock Cr-sek near Darby 

and canal records at downstream points.

Note. No gage-height record (except for a few scattered readings) Apr. 19 to Jun3 30, Sept. 2-30; 

discharge computed on basis of records for Rock Creek near Darby and canal records at downstream 

points.
FEND OREILLE RIVER BASIN 243

Skalkaho Creek near Hamilton, Mont.

Location.--Water-stage recorder, lat. 46°09'50", long. 113 0 56'20", in NW£ sec. 26, T. 

5 N., R. 19 W., 2 miles downstream from Daly Creek-and 12 miles southeast of Hamilton.

Records available. December 1948 to September 1950. 

site 13 miles downstream.

April 1920 to September 1924 at

Extremes. Maximum discharge during year, 812 second-feet June 21 (gage height, 4.40 

FeirffT; minimum discharge recorded, 12 second-feet Mar. 11 (gage height, 1.27 feet).

1920-24, 1948-50: Maximum discharge observed, 1,110 second-feet June 14, 1922; 

minimum discharge recorded, that of Mar. 11, 1950.

Flood of May 1948 reached a discharge of 1,130 second-feet at a point 5 miles downstream, by slope-area method.

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

whfch are poor. No regulation or diversion.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

z

3 

4

5

6 

7 

8 

9

10

11 

1Z 

13 

14

15

16 

17 

18 

19 

20

El 

ZZ 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

37 

34 

32

31

37

35 

34 

32 

32 

33

32 

34 

32 

30 

31

31

30 

29 

28 

29

29 

29 

28 

28 

28

28 

28 

31 

35 

29 

28

Nov.

28 

28 

27 

27 

26

26 

26 

27 

27 

27

26 

26 

26 

26 

26

25 

25 

24 

24 

24

24 

24 

26 

27 

29

28 

41 

38

30 

30

Dec.

27 

28 

25 

25 

25

Z4 

24 

24 

23 

23

22 

22 

22 

22 

22

23 

23 

23 

23 

22

24 

26 

26 

24 

23

23 

24 

24 

24 

22 

24

Jan.

23 

20 

19 

19

20

20 

21 

21 

21 

21

21 

21 

20 

20 

20

20 

20 

21 

22 

Z4

25 

24 

22 

21 

21

20 

19 

*19 

19 

18 

18

Feb.

18 

18 

18 

18 

19

19 

20 

21 

21 

21

21 

21 

21 

21 

21

21 

20 

20 

20 

20

20 

19 

19 

22 

24

23 

23 

22

Month

Octo 

Move 

Dece

Ca

janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base, 400 sec. -ft.). June

ft.

Mar.

*21 

21 

21 

21 

22

22 

21 

21 

21 

19

18 

16 

16 

16 

16

17

17 

17 

17 

17

17 

17 

17 

16 

16

15 

15 

15 

*15 

16 

16

Apr.

16 

17 

17 

18 

19

21 

23 

24 

24 

23

24 

26 

29 

30 

28

30 

36 

33 

34 

38

50 

54 

48 

43

41

40 

40 

38 

37 

36

Secondfoot-clays

964 

818 

736

36,732

640 

571 

552 

937 

5,137 

15,552 

8,538 

2,425 

1,359

38,229

May

37 

38 

37 

35 

35

34 

33 

33 

34 

36

4Z 

62 

98 

134 

176

193 

231 

240 

193 

165

163 

220 

304 

277 

Z49

273 

332 

381 

362 

347 

343

Maximum

37 

41 

28

610

25 

24 

22 

54 

381 

757 

579 

122 

55

757

June

354 

325 

311 

358 

433

470 

454 

401 

373 

362

409 

446 

528 

516 

549

610 

716 

726 

730 

708

757 

712 

623 

562 

520

503 

495 

503 

532 

566

July

579 

554 

532

520

499

482 

454 

401 

370 

351

321 

284 

258 

240 

231

2ZO 

204 

191 

181 

174

161 

152 

148 

142 

138

129 

127 

129 

123 

125 

118

Minimum

28 

24 

22

20

18 

18 

15 

16 

33 

311 

118 

48 

40

15

Aug.

110 

106 

104 

106 

105

122 

102 

98 

94 

92

89 

89 

85 

80 

78

75 

71 

69 

67 

66

65 

61 

60 

60 

59

58 

54 

52 

51 

49 

48

Mean

31.1 

27.3 

23.7

101

20,6 

20.4 

17.8 

31.2 

166 

518 

275 

78;2 

45.3

105

5 (11:30 p.m.) 487 sec. -ft. ; June 21 (2

Sept.

47 

46 

45 

44 

45

44 

43 

45 

47 

44

42 

42 

49 

47 

48

47 

48 

50 

48 

44

43 

42 

41

40 

40

55 

50 

45 

44 

44

Runoff In 

acre-feet

1,910 

1,620 

1,460

72,830

1,270 

1,130 

1,090 

1,860 

10,190 

30,850 

16,930 

4,810 

2,700

75,820

a.m.) 812 sec.-

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 5-7, 9-14, 16-19, 25-26, Jan. 3-5, 28-30, 

Feb. l"5, Mar. 1, 2, Mar. 11 to Apr. 6. No gage-height record Dec. 15, Jan. 6-27, Jan. 31 to Feb. 14 

(stage-discharge relation probably affected by Ice during most of period); discharge computed on 

basis of temperature records and records for Burnt Fork Creek near Stevensvllle.
244 PEND OREILLE RIVER BASIN

Blodgett Creek near Corvallis, Mont.

Location. Water-stage recorder, lat. 46°16', long. 114°13', in NW^NW^ sec. 21, T. 6 N., 

RT~2T W., 45 miles upstream from mouth and 7 miles southwest of Corvallis.

Drainage area.--26.8 square miles.

Records available.--December 1946 to September 1950.

Extremes.--Maximum discharge during year, 771 second-feet June 17 (gage height, 6.11 feet); 

minimum, 5.0 second-feet Sept. 25 (gage height, 2.16 feet).

1946-50: Maximum discharge 836 second-feet May 16, 1949 (gage heigtt, 6.42 feet); 

minimum, 1.6 second-feet Feb. 19, 1949 (gage height, 1.96 feet).

Remarks.--Records good except those for periods of ice effect, which are fair. No diversion above station. Flow only slightly affected by storage for irrigation in High Lake 

and Blodgett Lake.

(Shifting

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

e

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

Oct.

7.8 

8.1 

7.0 

6.4 

9.2

16 

14 

14

14 

16

14 

17 

16 

16 

16

18 

16 

16 

13 

14

13 

13 

13 

13 

13

14 

14 

29 

56 

30 

24

Nov.

22

21 

20 

19 

18

18 

17 

16 

16 

16

15 

15 

16 

15 

15

14 

14 

14 

14 

13

11 

12 

15 

24 

83

63 

134 

117 

79 

68

Dec.

58 

55 

48 

44 

42

38 

35 

34 

b32 

30

b29 

b28 

b27 

26 

26

24 

*23 

22 

20

19

19 

18 

18 

17 

16

16 

16 

16 

16 

15 

14

Jan.

14 

13 

b!2

b!2 

b!2

bll 

bll 

bll 

blO 

blO

10 

10

10 

10 

10

blO 

blO 

blO 

12 

18

39 

51 

38

31 

27

b25

*b22 

b21 

b20 

b!9 

b!8

Feb.

b!8 

b!7 

b!6 

b!6 

b!6

blS 

blS 

15

15 

14

14 

13 

13 

13 

12

13 

14 

13 

13 

14

14 

14 

14 

18 

28

33 

36 

31

Month

Ooto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Peak discharge (base, 450 sec. -ft.). May 2

June 13 11 p.m.; 4?Z sec. -ft.; June 17 (4:30

Mar.

26 

26 

*24 

28 

28

29 

27 

26 

24 

24

23 

23 

22

2o

19

18 

20 

23 

21 

21

20 

20 

20 

20 

20

18 

18 

18 

18 

18 

19

Apr.

34 

42 

34 

31 

31

31 

31 

34 

34 

32

32 

35 

41 

45 

44

48 

62 

60 

60 

69

96 

117 

98 

83 

76

69 

69 

63 

58 

55

Secondfoot-days

500.5 

934

841

25,778.4

537 

477 

681 

1,614 

6,032 

10,840 

5,492 

1,208 

513.3

29,669.8

May

56 

57 

52 

50 

47

45 

43 

43 

44 

45

55 

90 

178 

280 

335

314 

309 

274 

209 

172

188 

335 

436 

306 

262

276 

333 

365 

299 

267 

267

Maximum

56 

134 

58

688

51 

36 

29 

117 

436 

636 

400 

98 

36

636

June

274 

253 

226 

283 

382

425 

360 

280 

220

204

280 

340 

428 

362

410

532 

636 

535

480 

480

520 

468 

345 

283 

251

231 

269 

321 

362 

400

July

4CO 

362 

326 

318 

311

3C4 

292 

264 

251 

258

204 

170 

156 

162 

160

133 

117 

111 

123 

122

103 

93 

97 

83 

8?

77 

73 

81 

81 

81 

65

Minimum

6.4

11 

14

2.9

10 

12 

18 

31 

43 

204 

63 

23 

5.5

5.5

Aug.

52

50 

51 

46 

49

98 

62 

48 

47 

56

46 

45 

40 

36 

34

31 

28 

26 

24 

23

23 

34 

34 

33 

32

30 

28 

27 

26 

25 

24

K<san

16.1 

31.1 

27.1

70.6

17.3 

17.0 

22.0 

53.8 

195 

361 

177 

39.0 

17.1

81.3

Sept.

23 

22 

21 

24 

25

26 

36 

34 

32 

29

26 

22

20 

15 

13

12 

10 

9.5 

11 

10

7.4 

6.7 

6.4 

5.8 

5.5

10 

16 

12 

12 

11

Runoff In 

acre-feet

993 

1,850 

1,670

51,130

1,070 

946 

1,350 

3,200 

11,960 

21,500 

10,890 

2,400 

1,020

58,850

3 (3 a.m.) 530 sec. -ft.; June 6 (5 a.m.) 470 sec. -ft.; 

a.m.) 771 sec. -ft.; June 21 (3 to 4 a.m.) 578 see. -ft,;

July 1 (3 a.m.) 468 sec.-ft.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
FEND OREILLE RIVER BASIN 245

Fred Burr Greek near Victor, Mont,

Location. Water-stage recorder, lat. 46°21>, long, 114°15 ! , in KWf sec. 20, T. 7 M., R. 

2TTJT, 5 miles upstream from mouth and 7 miles southwest of Victor.

Drainage area.--18.6 square miles.

Records available. December 1946 to September 1950.

Extremes. Maximum discharge during year, 822 second-feet June 17 (gage height, 5.67 feet), 

from rating curve extended above 370 second-feet; minimum recorded discharge, b.l secondfeet Oct. 4 (gage height, 1.20 feet).

1946-50: Maximum discharge, S3,100 second-feet May 28, 1948, by slops-area method 

(failure of dam above station); minimum observed, 2.7 second-feet Sept. 20-22, 1948.

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

whlcn are poor. No diversion above station. Dam above station which washed out in 

1948 is being repaired. No regulation in 1950.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

Z

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

5.9 

6.3 

6.3 

5.3 

7.3

8.7 

8.7 

8.4 

8.7 

10

3.3 

10 

9.9 

9.3

10 

9.6 

9.6 

8.4 

8.7

8,4 

8.1 

8.4 

9.3

8.7

9,0 

9.0 

23 

37 

22 

19

Nov.

17 

16 

15 

14 

14

14 

13 

13 

12 

12

12

IE 

12 

11 

11

11 

10 

10 

9.9 

9.6

9.3

9.0 

11 

29 

72

55 

151 

128 

91 

76

Dee.

65 

59 

50 

43

41

36 

32

30 

28 

b26

b24 

a 22 

a 20

a!9 

a!7

15 

14 

13 

13 

12

12

11 

bll 

blO

10 

9.9 

9.9 

9.6 

9.3 

9.3

Jan.

9.0 

b9 

b8 

aS 

aS

a8 

a8 

a8 

aS 

aB

aS

a7 

7.1 

b7 

a7

a7 

a7 

a7 

a7 

a 10

b20 

37 

26 

b22 

b20

alS 

*b!7 

blS 

b!4 

614 

a 13

Feb.

a!3 

a!2 

a!2 

all 

all

blO 

alO 

alO 

a 10 

a9

a9 

a9 

aS 

a8 

8.1

8.4 

8.7 

8.4 

8.7 

9.3

9.0 

9.0 

8.7 

11 

16

24 

36

28

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

¥a

lendar year

ter year 1949-50 .......................

Mar.

21 

18 

*17 

21 

22

22

19 

17 

15 

b!4

b!3 

b!2 

bll

10 

10

9.9 

11 

12

11 

11

10 

10 

10 

10 

10

9.9 

9.9 

9.3 

9.0 

9.3 

10

Apr.

£4 

30 

23 

20

19

19 

20 

22 

21 

20

20 

23 

30 

34 

32

32

48 

45 

42 

50

74 

81 

61 

48 

42

38 

41 

37 

32 

30

Seeondfoot-days

331.9 

879.8 

692.0

-

372.1 

335.3 

404.3 

1,058 

3,709 

7,658 

3,740 

781.4 

224.4

20,186.2

May

34 

34 

30 

28 

25

22

21 

20 

20

21

29 

61

99 

168 

208

200 

2O5 

163 

94 

64

83 

267 

300 

192 

148

180 

241 

241 

182 

159 

165

Maximum

37 

151 

65

-

37 

36 

22 

81 

300 

560 

268 

65 

10

560

June

177 

144 

127 

190 

290

328 

259 

161 

116 

110

182 

241 

300 

E56 

297

431 

560 

384 

359 

359

366 

310 

244 

203 

177

165 

185 

219 

253 

265

July

268 

238 

221 

221 

216

208 

197 

177

173 

173

14C

lie

114

ne

12 C

Sf

Be

TL 

84

7f

68 

63 

61 

55 

54

50 

49 

60

, 63 

63 

47

Minimum

5.3 

9.0 

9.3

-

7 

8 

9.0 

19 

20 

110 

47 

9.4 

6.6

5.3

Aug.

40 

40 

38 

35 

35

65 

44 

35 

35 

35

31 

29 

27 

25 

24

23

21 

19 

18 

17

16 

15 

16 

16 

14

13 

13 

12 

11 

10 

9.4

N?an

10.7 

29.3 

22.3

-

12.0 

12. 0 

13.0 

35.3 

120 

255 

121 

25.2 

7.48

55.3

Sept.

8.5 

7.9 

7.6 

7.3 

7.3

7.0 

7.0 

7.0 

7.0

7.0

6.8 

6. a 

7.3 

7.6 

7.3

7.6 

7.0 

7.3 

7.S 

7.3

7.C 

6.8 

6.8 

6.6 

6.6

8.2 

10 

8.6 

8.8 

8.6

Runoff In 

acre-feet

658 

1,750 

1,370

-

738 

665 

802 

2,100 

7,360 

15,190 

7,420 

1,550 

445

40,050

* Winter discharge measurement made on this day.

a No gage-height record (stage-discharge relation probably affected by Ice during most of periods); 

discharge computed on basis of tenjierature records and records for Blodgett Creek near Corvallls. 

b Stage-discharge relation affected by lee.
FEND OREILLE RIVES BASIN

Bear Creek near Victor, Mont.

Drainage area. --£6. 6 square miles.

Records available. --April 1938 to September 1949.

Average discharge .--12 years, 63.7 second-feet.

Extremes. --Maximum discharge daring year, 1,340 second-feet June 16 (gage height, 4,04 

feet )", froTi rating carve extended above S30 R^'.-ond-feet; minimum Gaily, 7.5 secondfeet Oct. 4.

1938-50: Maximum discharge, that of June 1C, 19SC; minimum discharge recorded, 1.0 

second-foot Sept. 1?, Nov. 15, 1944.

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

which are poor. No diversion or regulation atove station.

Revisions (water years ).--W 982: 1942.

Discharge, in second-feet, water year October 1349 to September 1950

 _____ 

Day Oct .

\

I

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

a9

a!

9.7.5

16

14

14

14

14

IS

15

17

16

15

15

16

16

15

14

14

14

14

14

14

14

15

15

28

37

28

26

Nov.

24

23

22

22

22

21

23

20

19

19

18

18

18

18

17

17

16

16

16

16

15

16

18

36

83

59

145

103

69

58

-

Dec.

49

46

40

38

35

33

331

b30

b28

b27

b26

b24

b23

b22

b21

b!9

b!8

blS

b!7

b!7

b!7

blS

bis

bis

b!6

b!5

blS

15

15

b!5

blS

Jan.

15

blS

b!5

b!5

aM

a!4

a 14

a!4

a!3

a 13

a 13

a!3

a!2

a!2

a!2

al2

a!2

a!2

al3

16

b22

b30

b20

b!6

*b!4

b!4

b!3

b!3

b!2

bll

bll

Month

October . . ..... .... .....

November ......................

December . ...... ........ ...

Calendar year 1949 ........

January , . . . ..... .... .....

February . . . .......... . .

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

April ......... ..... . . ... .

May . . ... ........ . .... ....

June .............

July . . ...... . .......... ...

August ............ . . ........

September ........ .........

Water year 1949-50 . . .......

Feb.

bll

Mar.

i 25

bl] 1 *23

bll I 22

bll 23

biz

b!4

14

14

14

13

13

13

13

13

12

13

13

13

13

13

13

13

13

17

25

26

30

26

_

_

-

Secondfoot-days

493 5

984

733

25,459.6

445

417

568

1 , 283

5 , 793

12, 206

l!o50

328.9

30,251.4

24

24

24

22

21

bHO

b!6

b!7

blS

blS

IS

17

18

13

17

17

Apr. May

5

1

42

42

a j 40

b

5

6

37

3*5

34

6 32

7

Q

2o

23

28

33

37

37

38

53

51

4S

57

81

17 90

16

IS

16

15

15

15

14

14

15

Maximum

37

145

49

666

30

30

25

90

402

837

496

133

15

837

74

63

57

54

52

48

43

41

31

51

32

40

70

174

309

338

318

313

267

198

140

175

368

402

272

225

272

352

3S6

299

258

275

Minimum

7.5

15

15

4

11

11

14

25

31

60

13

3.4

7.5

June

296

247

225

328

454

514

415

278

198

180

3J2

377

466

407

492

746

837

560

546

555

590

500

370

293

252

222

281

366

430

479

Mean

15 9

32.8

23 . 6

69 . 8

14.4

14.9

18.3

42.8

187

107

192

33 9

11.0

82.9

July Aug

493 59

450 j 53

4111 49

41 ll 45

301 43

370 133

335 63

293

275

272

48

43

47

206 | 40

167

15?

37

ZZ

152 31

142

121

103

100

130

114

9S

85

80

75

70

64

60

68

83

112

74

28

26

24

22

20

20

19

18

18

18

18

17

16

15

14

14

13

Sept

131"

12

11

11

11

10

10

10

9.7

9.2

9.0

10

11

11

12

11

11

11

10

9.7

9.2

9.0

8.7

8.4

13

15

14

14

13

L_~

Per I Runoff

square | 

mile Inches Acre-feet

C.598 0.59 979

1.23 1.37 1,950

.887 1.02 1,450

2,62 35.53 50,490

.541 .62 883

,56(» .58 827

.688 .79 1,130

1.61 1.80 2,540

7.03 8.10 11,490

15.3 17.07 24,210

7.22 8.32 11,800

1.27 1.46 2,080

.414 ,46 652

3.12 42.28 59,990

(11 - -.

* Winter discharge measurement made on this day. 

a No gage-height recordj discharge computed on basis of temperature records or records for Fred 

Burr Creek near Victor and Blodgett Creek near Corvallis. 

b Stage-discharge relation affected by ice.
FEND OREILLE RIVER BASIN £47 

Kootenai Creek near Stevensville, Mont.

Location.--Water-stage recorder, lat. 46°33', long. 114°10', wj sec. 18, T. 9 N., R. 20 W. 

S miles upstream from month and 4 miles northwest of Stevensville.

Drainage area.--29.1 square miles.

Records available.--December 1948 to September 1950.

Extremes.--Maximum discharge during year, 1,300 second-feet June 17 (gage height, 5.85 

feet), from rating curve extended above 500 second-feet; minimum, 8.6 second-feet Oct. 

1, 4, 5 (gage height, 1.60 feet).

1948-50: Maximum discharge, that of June 17, 1950; minimum daily, 6 second-feet 

Feb. 19, 20, 1949.

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

which are poor. No diversion.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

Oct

8.8

9 .C

8.9

8.7

10

11

12

8 1 12

9 13

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

15

15

16

15

Nov.

25

24

23

23

23

22

21

20

13

Dec. Jan Feb

59 ! 13 ' 10

53

44

37

35

33

30

27

b26

16 25

17

17

] 7

15 16

15

17

16

14

14

13

13

13

14

14

15

15

59

87

14

31

16

16

15

15

15

14

14

17

38

140

110

203

153

97

73

b24

23

22

21

13

b!3

15

12

12

12

12

12

11

11

11

11

11

20 11

bl8

t.17 

17

16

bib

11

11

13

10

10

11

12

12

12

12

11

10

10

10

10

10

] 1

i!

12 11

14

b!5 22

b!5 b3?

b!5 b22

15

15

14

IB

*b!6

b!4

14 b!3

14

14

^5

15

12

bll

blO

10

11

11

11

11

16

b22

31

38

:

V +b Second- 

' * foot-days

October . ............. . 573.4

November . . . . . .... . . . . 1,236

December .... ...... . . 720

Calendar year 1949 .... . 31,069.1

January ..... . . .......... . 417

February ...... ..... . . 387

March ......... .......... 64,1

April ..... . ...... ... 1,612

May .......... . . . ... ..... 6,041

June ......... ..... ... 11,542

July ........ ... ... . . 7,811

August .... ........ ... ... 1,360

September .... ....... . 536

Water year 1949 -5O ... . .. . 33,331.4

Mar.

27

*25

23

25

30

31

28

2S

24

22

b21

b20

b!9

19

IB

17

19

19

19

18

19

Apr

34

49

May

49

51

37 49

30 45

23

27

27

27

27

25

25

28

35

44

44

45

80 

73

66

76

117

130

18 110

18 84

18 69

17

17

*17

16

16

17

Maximum

a 7

203

59

713

32

38

31

130

402

755

00^

22

755

59

61

55

52

48

-

43

33

35

33

33

34

51

113

212

328

356

332

325 

249

191

June

280

242

224

300

388

412

322

239

191

175

258

350

412

364

388

633

5S2

562

161 589

183

358

402

311

26S

308

346

328

290

258

261

Minimum

8.7

14

13

6

10

1C

16

25

33

175

86

22

14

8.7

662

570

374

280

230

206

236

350

454

514

-

July

542

494

462

446

426

430

402

353

356

Aug.

88

87

37

76

91

Sept

21

21

21

20

20

221! 20

102 18

80

82

350 82

264

221

212

221

206

180

164 

161

189

180

161

164

156

147

142

142

142

153

137

122

36

Per 

Mean square 

mile

IS. 7 0.643

41.2 1.42

23.2 .797

35.1 2.32

13.5 .464

13.8 .474

20.7 .711

53.7 1.85

195 6.70

385 13 «2

60.0 2.05

17.9 .615

91.5 3.14

76

73

62

56

51

49

45 

43

44

41

39

37

38

35

32

23

27

25

23

23

£2

18

18

17

IS

15

17

17

17

17

16 

17

17

17

is

15

15

14

14

13

22

21

20

20

-

Runoff

Inches Acre-feet

0.74 1,15C

1.56 2,450

.92 1,430

39. S4 61,630

.53 327

.49 766

.82 1,270

" .OS 3,200

7.72 11,980

14 . 73 22 , 89O

9.98 15,490

2.38 3,690

.69 1,060

42.64 66,200

Peak discharge (base, 500 see.-fb.).--May 23 (l a.m.) 558 see.-fr.; 

June 21 (10 p.m.) 774 sec.-ft.; June 30 (11:30 p.m.) 662 sec ,-f t.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. Mo gage-height record Dec. 12-15, Jan. 1, 2, 4-21, E4, 28, Jan. 31 to Feb. 24 (: 

discnarge relation probably affected by ice entire period); discharge computed on "basis ( 

ature records and records for Bear Creek near Victor.

238382 O - 53 - 17

17 (1:30 ajn.) 1,300 sec.-ft.

,tage-

>f temper-
-48 FEND OREILLE RIVER BASIN

Burnt Pork Creek near Stevensville, Mont.

Location.--Staff gage, lat. 46°28', long. 113°57', in SVf£ sec. 11, T. 8 r., R. 19 W., at 

highway bridge 8 miles southeast of Stevensville.

Drainage area.--74 square miles.

Records available.--May 1920 to August 1924, April 1938 to September 195C.

Average discharge. 12 years (1938-50), 47.6 second-feet.

Extremes.--Maximum discharge observed during year, 379 second-feet June £1; maximum gage 

height observed, 2.73 feet Jan. 6 (backwater from ice); minimum daily discharge, 10 

second-feet Mar. 25-27.

1920-24, 1938-50: Maximum discharge observed, 641 second-feet May 28, 1938; maximum 

gage height observed, 3.40 feet Jan. 6, 9, 1947 (backwater from ice); minimum daily 

discharge, 2 second-feet Mar. 11, 1948.

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

which are poor. Gage read once daily except Sundays and holidays. Several diversions 

above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

21 

a20 

19 

19 

24

23

21 

21 

a20 

19

19 

21 

22 

21 

22

a20

18 

19 

18 

18

19 

18 

a!8

18 

18

18 

18 

18 

18 

a!8 

18

Nov.

17 

*18 

18 

18 

18

a!8 

18 

18 

18 

19

a!8 

18 

a!8 

18

17

17 

17 

17 

17 

a!7

17 

17 

17 

a!8 

18

18 

a26 

22

19 

19

Dec.

17 

18 

17 

a 17 

17

17 

b!7 

b!6 

16 

b!6

al5 

b!5 

blS 

blS 

b!4

blS 

blS 

a!5 

b!5 

b!4

blS 

b!5 

16 

16 

a!5

15 

15 

15 

15 

15 

blS

Jan.

a!5 

a!4 

b!3 

blS 

b!3

b!4 

b!5 

alS 

blS 

blS

blS 

b!4 

b!4 

b!4 

a!3

b!3 

b!3 

b!3 

blS 

b!7

b!8 

a!6 

blS 

*b!4 

b!3

b!3 

b!2 

blZ 

all 

bll 

bll

Feb.

bll 

bll 

bll 

11 

all

blE 

b!2 

b!2 

b!2 

b!2

blZ 

a!2 

blZ 

b!2 

12

12 

12 

12 

a!3 

13

12 

alZ

12 

14 

14

a 15

16 

blS

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

b!7 

*16 

14 

13 

a!4

15 

15 

15 

14 

blS

blZ

all 

bll 

bll 

bll

b!2 

b!2 

12 

a!2 

12

12 

12

12 

12 

10

a 10

10 

*11 

11 

11 

11

Apr.

12

a!2 

12 

13 

13

14 

16 

17 

a!7 

17

16 

17 

21 

22 

22

a28 

33

29 

27 

32

42

48 

a46 

43 

32

23 

30 

27 

25 

a25

Secondfoot-days

604 

545 

483

17,631

429 

350 

384 

736 

2,867 

7 259 

3I431 

976 

683

18,747

May

25 

28 

27 

25 

23

23 

a22 

22 

23 

25

Z3 

46 

70 

a85

101

105 

120 

120 

92 

85

a SO 

120

214 

166 

139

149 

185 

a210 

190 

a!60 

153

Maximum

24 

26

18

310

18 

18 

17 

48 

214 

379 

240 

42 

25

379

June

168 

149 

135 

144 

174

214 

220 

185 

149 

144

a!70 

196 

283 

246 

260

298 

334 

a350

366 

350

379 

365 

320 

278 

a245

230 

227 

2£C 

220

240

July

240 

a? 40 

£40 

a224 

207

178 

178 

151 

a!39 

127

127 

114 

109 

105 

97

a91 

85 

85 

65 

72

69

61 

a58 

56 

49

45 

41 

41 

39 

a39 

39

Minimum

18 

17 

14

14

11 

11 

10 

12 

22 

135 

39 

£4 

18

10

Aug.

39 

39 

39 

35

37

a40 

42 

38 

36 

34

32 

34 

a32 

30

29

29 

27 

27 

27 

a27

27 

27 

29 

29 

29

29 

a28 

27 

27 

27 

24

Mean

19.5 

18.2 

15.6

48.3

13.8 

12.5 

12.4 

24.5 

92.5 

242 

111 

31.5 

22.8

51.4

Sept.

24 

24 

a23 

a23 

22

25 

25 

25 

25

a24

23 

23 

25 

25 

25

25 

a24 

24 

22 

21

21 

21 

20 

a 19 

18

22

22 

22 

21

20

Runoff In 

acre-feet

1,200 

1,080 

958

34,970

851 

694 

762 

1,460 

5,690 

14,400 

6,810 

1,940 

1,350

37,200

* Winter discharge measurement made on this day. 

a No gage-height record; discharge Interpolated c 

records for Skalkaho Creek near Hamilton, 

b Stage-discharge relation affected by ice.

computed on basis of temperature records or
PEND OREILLE RIVER BASIN

Flathead River at Flathead, British Columbia 

(International gaging station)

Location. Water-stage recorder, lat. 49°00', long. 114 0 29', at highway bridge, 0.2 mile 

north of international "boundary, 0.2 mile northwest of Flathead, British Columbia, and 

7 miles northwest of Trail Creek, Mont.

Drainage area.--450 square miles.

Records available.--Marcn 1929 to September 1950 (no winter records).

Extremes.--Maximum discharge during year, 6,320 second-feet June 21 (gage height, 5.25 

feet); minimum recorded, 162 second-feet Oct. 27 (gage height, 0.69 foot), but was 

probably less during period of no record in winter.

1929-50: Maximum discharge, 14,600 second-feet May 23, 1948 (gage height, 9.1 feet, 

from floodmark), from rating curve extended above 8,000 second-feet; minimum observed, 

65 second-feet Apr. 9, 1929.

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

poor. No regulation or diversion above station.

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

Canada under agreement with the United States.

Revisions (water years). W 1092: 1933 (maximum gage height only).

Rating table, water year 1949-5O, except period of ice effect 

(gage height, in feet, and discharge, In second-feet)

1.0 

1.2

165

200

238

285

392

1.4 

1.7 

2.0 

2.5 

3.0

510

728

987

1,500

2,130

3.5 

4.0 

4.5 

5.2

2,910

3,830

4,820

6,220

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

204

196

193

190

234

257

252

234

223

223

227

223

219

215

219

219

211

208

211

186

193

182

179

179

172

168

165

227

486

462

376

Nov.

327

301

280

266

266

257

243

247

238

238

234

266

280

280

285

276

262

257

257

234

215

211

230

238

317

450

1,080

1,540

1,120

931

Dec.

809

744

666

578

544

_

-

-

-

-

_

_

-

_

-

_

_

Jan.

- i ; 1

.

_

_

-

_

_

_

_

_

-

Month

October ... ... ...............

November .....................

December 1-5. . ........... ...

Calendar year ..... . ,

January .......................

February .................. ...

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

April ................. .......

May ...........................

June ...... ...................

July ........... ... ...... ...

August ..... .... .............

September . . .............. ...

Water year ..........

Feb.

Second 

foot-days

7,133

11,626

3,341

-

109,420

137,170

50,665

16,824

8,120

-

Mar.

Maximum

486

1,540

809

-

_

6,020

6,080

3,830

752

360

-

Apr. May

al.050

al.100

al,130

al,120

al,090

81,130

al,220

al,400

al,670

al,950

a2,600

33,550

a4,650

5,800

6,000

5,580

5,320

4,600

3,720

3,250

3,340

4,740

5,260

4,440

4,140

4,700

5,760

6,020

5,000

4,220

3,870

Minimum

165

211

544

-

_

1,050

2,950

801

370

223

-

June

4,100

3,680

3,810

4,660

5,480

5,860

4,660

3,530

2,950

2,980

3,830

5,160

5,820

5,380

5,000

5,240

5,540

5,400

5,560

5,760

6,080

6,000

5,300

4,220

3,740

3,380

3,380

3,430

3,490

3,750

Mean

230

388

668

-

_

3,530

4,570

1,630

543

271

-

July

3,830

3,410

3,180

2,910

2,710

2,510

2,360

2,170

1,970

1,940

1,780

1,630

1,490

1,410

1,360

1,270

1,210

1,140

1,110

1,100

1,040

1,030

1,010

959

922

913

903

886

868

843

801

Per 

square 

mile

0.51

.86

1.48

-

_

_

7.84

10.16

3.62

1.21

.60

-

Aug.

752

7

6

6

20

97

58

650

628

6

E

21

07

92

643

592

6

6

c

81

07

51

524

537

c

4

4

30

98

86

462

444

4

4

c

33

62

04

480

456

4

4

4

3

33

15

04

87

370

Sept.

360

338

327

322

333

327

312

301

285

280

276

266

262

262

257

257

252

247

243

238

230

230

227

223

223

247

262

252

243

238

-

Runoff

Inches

0.59

.96

.28

-

_

_

9.04

11.34

4.19

1. 39

.67

-

Ac re- feet

14, 150

23,060

6,630

-

_

_

217,000

2-72,100

100,500

33,370

16,110

-

a No gage-height record; 

Palls, Mont.

discharge computed on basis of records for Flathead River near Columbia
250 PEND OREILLE RIVER BASIN

Flathead River near Columbia Falls, Mont.

(levels "by Bureau of Reclamation) , 

Drainage area.--1.620 square miles.

Records available.--September 1910 TO September 1917, April 1329 to September 1950. 

Average discharge . 22 years (1910-17, 1935-50), 2,797 second-feet. 

Extremes.--Maximum discharge during year, 21,000 second-feet June

; minimum recorded^ 568 second-feet Jan. 3 (gage height, 1.62 feat).

10-17, 1929-50: Maximum discharge, 29,500 second-feet June 20, 1916 (gage height

excellent except those for periods of ice effect or n

Rating tables, water year 1949-50, except periods of Ice effect 

(gage heignt, In feet, and discharge, In second-feet)

Oct. 1 to Mar. 3 Mar. 4 to Sept. 30

1.7 600 2.7 1,220 4.0 S,6EO 2.0 830 3.8 2,460 

2.0 745 3.1 1,590 4.5 3,310 2.4 1,060 4.4 3,260 

2.3 925 3.5 2,020 4.9 3,950 2.8 1,370 5.0 4,300 

3.2 1,760 6.0 6,300

Discharge, in second- feet, water year October 1949 to September

Day

1 

2 

3 

4 

5

6

Y 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

918 

912 

892 

899 

967

1,020 

1,010 

970 

940 

980

980 

980 

960 

920 

900

860 

840 

820 

300 

780

760 

740 

720 

720 

700

700 

700 

h981 

1,200 

1,390 

1,310

Nov.

1,210 

1,140 

1,100 

1,050 

1,020

1,000 

981 

974 

967 

995

1,000 

1,180 

1,220 

1,450 

1,500

1,450 

1,350 

1,350 

1,300 

1,300

1,250 

1,200 

1,200 

1,300 

1,300

1,600 

2,200 

3,800 

3,500 

2,990

Dec.

2,650

2,460 

2,300 

*2,030 

1,870

1.8EO

1,660 

1,510 

1 , 400 

1,300

1,170 

1,130 

1,240 

1,240 

1,280

1,270 

1,300 

1,120 

818 

762

854 

953 

1,190 

1,240 

1,140

1,110 

1,120 

1,220 

1,240 

1,180 

1,110

Jan.

1,040 

745 

600 

632 

f730

fBia

f995 

1,060 

1,060 

1,020

1,010 

988 

830 

735 

700

650 

600 

650 

700 

900

1,080 

1,120 

1,210 

1,140 

1,000

900 

800 

700 

650 

600 

600

Feb.

600 

650 

750 

dOO 

800

800 

BOO 

BOO 

750 

750

700 

700 

700 

700 

750

750 

BOO 

BOO 

800 

750

750 

750 

750 

750 

750

*780 

BOO 

BOO

u « + x Sec end 

Mcnth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1949 

ary

28,2£9 

43,877 

42,687

......... 1,033,324

h .........................

-5

ember .....................

26,263 

21,080 

30,348 

65,5^4 

03,280 

43,930 

24,900 

75,200 

34,068

ter year 1949-50 ....... . . 1,339,426

Mar

750 

800 

900 

1,050 

1,250

1,300 

1 , 250 

1,190 

1,120 

1,010

910 

886 

946 

1,000 

1,000

982 

1,040 

988 

988 

988

970 

964 

952 

934 

922

910 

898 

875 

860 

660 

855

Maximum

1,390 

3,800 

2,650

19,600

1,210 

BOO 

1,300 

4,340 

17,100 

20,500 

15,000 

3,700 

1,500

20,500

Apr.

934 

1,090 

1,070 

1,020 

1,000

1,010 

1,060 

1,060 

1,040 

1,030

1,040 

1,080 

1,280 

1,610 

2,030

2,240 

2,840 

3,020 

2,940 

3,060

3,710 

4,340 

4,060 

3,630 

3,530

3,370

3,180 

2,940 

2,720 

2,590

May

2,760 

2,920 

2,980 

2,920 

2,850

2,980 

3,310 

3,810 

4,460 

5,300

7,000 

9,480 

IE, 900 

15,900 

17,100

16,400 

15,500 

14,100 

11,800 

10,000

9,E10 

10, 600 

13,100 

12,500 

11,200

11,800 

13,900 

15,700 

15,100 

13,600 

12,100

June

11, 

11, 

11, 

12, 

15,

17, 

15, 

12, 

10, 

9,

9, 

13, 

16, 

17, 

16,

16, 

16,

16, 

17, 

18,

19, 

20, 

20, 

16, 

15,

13, 

12, 

12, 

13, 

14,

Minimum Mean

700 912 

967 1,463 

762 1,377

510 2,833

600 847 

600 753 

750 979 

934 2,184 

E,760 9,763 

9,360 14,800 

3,800 7,255 

1,500 2,426 

940 1,136

600 3,670

900 

500 

000 

600 

200

000 

900 

900 

600 

360

870 

000 

400 

400 

500

300 

500 

500 

100 

300

500 

500 

000 

900 

000

400 

600 

800 

300 

100

7.0 8,850 

8.0 12,000 

9.0 15,500 

10.3 20,800

1950

July

15,000 

14,400 

13,400 

12,500 

11,700

11,200 

10,600 

10,200 

9,500 

8,500

7,500

7,000 

6,500 

6,000 

h5,700

6,000 

5,600

5,400 

5, 200 

5,400

5,000 

4,900 

4,700 

4,400 

4,300

4,200 

4,200 

4,100 

4,000 

4,000 

3,800

Per 

square 

mile

0.563 

.903 

.850

1.75

.523 

.465 

.604 

1.35 

6.04 

9.14 

4.48 

1.50 

.701

2.27

Peak discharge (base, 11,000 sec. -ft .) . May 15 (11 a.m.) 17,400 sec. -ft.; May

Aug.

3,700 

3,500 

3,400 

3 , 200 

3,100

3,100 

2,900 

2,900 

2,800 

2,700

2,700 

2,600 

t,600 

2,500 

2,400

2,300

2,300 

2,200 

2 , 100 

2 , 000

1,900 

1,800 

1,800 

2,100 

2,100

2,000

1,900 

1,800 

1,700 

1,600 

1,500

Sept.

hi, 500 

1,450 

1,400 

1,350 

1,350

1,300 

1,280 

1,240 

1,200 

1,180

1,160 

1,140 

1,140 

hi, 130 

1,150

1,200 

1,100 

hi, 050 

1,000 

1,000

990 

982 

970 

952 

940

970 

1,010 

985 

982 

964

Runoff

Inches

0.65 

1.01 

.98

23.76

.60 

.48 

.70 

1.51 

6.96 

10.20 

5.16 

1.73 

.78

30.76

28 (9 p.

Acre-feet

56,070 

87,030 

84,670

2,051,000

52,090 

41,810 

60,190 

130,000 

601,500 

880,500 

446,100 

149,200 

67,570

2,657,000

m. ) 16,000

* Winter discharge measurement made on this day.

f C6mputed from partly estimated gage-height record.

h Computed from staff-gage reading.

Note. Stage-discharge relation affected by Ice Dec. 10, Jan. 25, 26, Feb. 6 to Mar. 3. No gagehelght record Oct. 8-27, Nov. 14-29, Jan. 15-20, Jan. 27 to Feb. 5, July 8-14, July 16 to Aug. 31, 

Sept. 2-'13, 15-17, 19-21; discharge computed on basis of temperature records and records for other 

Flathead River stations.
FEND OREILLE RIVER BASIN 251

Plathead River at Columbia Falls, Mont.

Location.--Water-stage recorder, 1st. 48°2£', long. 114°11', in SWij sec. 17, T. 30 N. , R. 

20 W., 200 feet downstream from highway bridge at Columbia Falls and 5 miles downstream 

from South Fork. Datum of gage is 2,978.00 feet above mean sea level, datum of 1929 

(levels by Corps of Engineers). 

Drainage area.--4,440 square miles.

Records available.--May 1922 to September 1323 (fragmentary), June 1928 tu September 1950. 

Average discharge.--22 years (1928-50), 8,943 second-feet.

Extremes.--Maximum discharge during year, V4,600 second-feet June 22 (gage height, 16.16 

feet) ; minimum recorded, 1,800 second-feet Oct. 25, 26, 27 (gage height, 1.17 feet).

1922-23, 1928-50: Maximum discharge, 102,000 second-feet May 23, 1948 (gage height, 

19.08 feet); minimum, 798 second-feet Dec. 8, 1929 (gage height, -0.08 foot).

Maximum stage known, 22.7 feet in June 1894, from floodmarks (discharge, 135,000 

second-feet, from ratin curve'extended above 85,000 second-feet by logarithmic

plotting).

1950

Hating tables, water year 1949

(gage height, in feet, and discharge, in s

xcept periods of le< 

ond-fei

1.1 1,710

1.5 2,270

2.0 3,040

3.0 4,840

Oct. 1 to June 6

4.0 7,040

5.0 9,660

6.5 14,900

8.0 21,400

Jun 7 to Sept. 30

10.0 31,800

12.5 48,200

15.2 69,000

1.7 2,350

2.0 2,820

3.0 4,510

4.0 6,580

5.0 9,090

6.5 14,000

8.0 20,000

10.0 30,200

12.0 42,700

14.0 57,200

16.1 74,000

Discharge, in second feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2,240 

2.E80 

2,270 

2,E20 

2,390

2,600 

2,600 

2,480 

2,380 

2,460

2,480 

2,460 

2,420 

2,340 

2,270

2,260 

2,210 

2,150 

2,020 

1,950

1,940 

1,900 

1,850 

1,830 

1,810

1,810 

1,810 

2,270 

3,950 

4,500 

4,190

Nov.

3,860 

3,640 

3,460 

3,300 

3,170

3,090 

3,010 

2,940 

2,880 

2,930

2,910 

3,280 

3,930 

4,330 

4,340

4,190 

3,970 

3,740 

5,660 

3,540

3,370 

3,230 

3,340 

3,490 

5,620

4,520 

6,970 

12,000 

11,100 

9,440

Dec.

*8,480 

7,790 

7,340 

6,510 

5,900

£,730 

5,300 

4,760 

4,520 

4 . 300

4,060 

3,730 

3,950 

4,060 

4,060

4,080 

3,860 

3,280 

2,500 

2,400

2,700 

3,090 

3,540

3,420 

3,150

3,070 

3,060 

3,460 

3,540 

3,420 

3,340

Jan.

3,150 

2,500 

2,000 

2,100 

2,400

2,600 

2,900 

3,000 

3,000 

3,000

2,800 

2,700 

2,400 

2,200 

2,000

1,900 

1,900 

2 , 000 

2 , 100

2,600

3,100 

3,700 

3,900 

3,400

3,000

2,700 

2,400 

2,200 

2 , 000 

1,900 

1,900

Feb.

1,900 

,000 

,300 

,500 

,500

,500 

,500 

,500 

,400 

,400

,300 

,200 

,300

,300 

,400

,400 

,500

,500 

,500 

, 400

, 400 

,400 

,400 

,400 

,400

,400 

,500 

,400

u. . h SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

3,'

........................ . 1,

embe r .....................

74,340 

131,250 

132,400

53,950

79,450 

66,600 

96,970 

'51,250 

315,840 

>50,200 

79,300 

'13,420 

96,310

ter year 1949-50 .......... 4,487,330

Mar.

2,400 

2,500 

2,900 

3,300 

3,800

4,000 

3,900 

3,600 

3,600 

3,400

3,000 

2,900 

3,000 

3,100 

3,100

3, 100 

3 , 100 

3,000 

3,100

3 , 300

3,400 

3,400 

*3,220

3,070 

2,990

2,940 

2,880 

2,780 

2,690 

2,660 

2,640

Maximum

4,500 

12,000 

8,48C

64, 300

3,900 

2,500 

4,OOC 

17,300 

59,300 

73,600 

54,800 

9,930 

4,430

73,600

Apr.

3,070 

3,990 

4,010 

3,830 

3,660

3,690 

4,010 

4,100 

4,120 

4,020

4,010

4,190 

5,000 

6,580 

8,400

9,130 

11,700 

12,600 

11,800

12,000

14,300 

17,300 

16,300 

14,100 

13,100

12,200 

11,200 

10,300 

9,490

9,050

May

9,180 

9,440 

9,410 

9,130 

8,940

9,050 

9,490 

10,500 

12,200 

14,600

20,000 

28,200 

40,600 

53 , 200 

f9,3UO

56,200 

53,200 

48 , 700 

40,100 

32,800

29,300 

35,800 

48,900 

45 , 300 

39,700

40,300 

47,400 

55,300 

52,800 

45,900 

40, 700

Minimum

1,810 

2,880 

2,400

1,150

1,900 

1,900 

2,400 

3,070 

8,940 

29,400 

10,700 

4,590 

2,440

1,310

June

40, 

39, 

37, 

45,

58,

68, 

56, 

43, 

34, 

29,

30,

46, 

61, 

62, 

58,

58, 

59,

58, 

60, 

64,

70, 

73,

68, 

55, 

48,

42, 

39, 

41, 

45, 

50,

Mean

2,398 

4,375 

4,271

8,641

2,563 

2,379 

3,128 

8,375 

32,770 

51,670 

25,140 

6,885 

3,210

12,290

Peak discharge (base, 38,000 sec. -ft.). May 15 (l p.m.) 60,800 sec. -ft

sec. -ft.; May 28 (5 p.m.; 56,800 sec. -ft.; June 6 (2 p.m.) 70,400 sec.-i't 

sec. -ft.; July 1 (12 m. ) 56, ICO sec. -ft. 

* Winter discharge measurement made on this day.

900 

100 

700 

200 

400

400 

600 

000 

500 

400

400

400 

600 

600 

000

800 

500 

600 

600 

700

300 

600 

500 

200 

400

400 

600 

700 

700

400

July

54, 

52, 

49, 

45, 

43,

41, 

38, 

35, 

32, 

31,

29, 

25,

2l! 

20,

20, 

18, 

17, 

16, 

17,

16, 

15, 

14, 

14, 

13,

13, 

12,

12. 

11, 

11, 

10,

Per 

square

mile

0.540 

.985 

.962

1.95

.577 

.536 

.705 

1.89 

7.38 

11.6 

5.66 

1.55 

.723

2.77

800 

600 

100 

600 

200

000 

900 

800 

700 

400

400

700 

400 

300 

500

000 

500 

000 

300 

200

500 

400 

600 

100 

400

000 

600 

200 

900 

500 

700

Aug.

3, 

9, 

9,

8, 

8,

8, 

8, 

8, 

7, 

7,

7, 

7, 

7,

6,

e, 

e.

6,

6, 

5,

$',

5, 

8, 

6,

5, 

5,

4^ 

4,

4,

930 

370 

060 

830 

880

570 

730 

340 

920 

880

550 

300 

280 

940 

630

630 

560 

250 

990

680

440 

260 

380 

320 

160

720 

400 

120 

950 

760 

590

Sept.

4,430 

4,230 

4,120 

4,020 

4,090

4,020 

3,850 

3,730

3,630 

5,510

3,410 

3,320

3,280 

3,090 

3.04U

3.090 

3,010 

2,900 

2,620 

2,740

2,660 

2.580 

2,530 

2,470 

2,440

2,610 

2,790 

2,720 

2,630 

2,550

Runoff

Inches

0.62 

1.10 

1.11

26.41

.67 

.56 

.81 

2.11 

8.51 

12.94 

6.52 

1.79 

.81

37.55

.; May 23 (2 p.m

.; June 22 (6 p.

Ac re feet

147,500 

260,300 

262,600

6,255,000

157,600 

132,100 

192,300 

498,300 

2,015,000 

3,075-, 000 

1,546,000 

423,300 

191,000

8,901,000

.) 51,300

m.) 74,600

Note. Stage-discharge relation affected by ice Dec. 10, 20, 21, Jan. 2 to Mar. 21.
25£ PEND OREILLE RIVER BASIN

Flathead Lake at Somers, Mont,

Location. Water-stage recorder, lat. 48 D 04', long. 114°13', in NE£ sec. 26, T. 27 N. , R. 

m w., at steamboat dock at Somers. Datum of gage is at mean sea level (Somers datum).

Records available. April 1922 to September 1950.

Extremes.--Maximum elevation during year, 2,894.68 feet June 25; minimum, 2, .27 feet

1922-50: Maximum elevation, 2,896.26 feet June 19, 1933; minimum, 2,

Remarks.--Since April 1938 lake elevation has been subject to regulation by Kerr Dam, 

4 miles below outlet. Some diversion and regulation above Flathead Lake.

Elevation, in feet, year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

92.40

92.33

92.29

92.25

92.26

92.16

92.06

92.03

92.03

92.01

91.98

91.92

91.86

91.78

91.75

91.68

91.59

91.48

91.43

91.38

91.30

91.25

91.21

91.22

91.20

91.18

91.18

91.18

91.16

91.16

91.17

Nov.

91.17

91.15

91.13

91.08

91.04

91.02

90.98

90.97

90.92

90.92

90.86

90.83

90.80

90.81

90.80

90.76

90.73

90 . 70

90.68

90.63

90.58

90.56

90.53

90.49

90.50

90.43

90.50

90.55

90.60

90.70

Dec.

90.73

90.91

90.81

90.90

90.96

90.91

90.89

90.93

90.95

90.90

90.92

90.91

90.83

90.69

90.55

90.45

90.28

90.17

90.06

90.03

89.91

89.85

89.77

89.71

89.69

89.62

89.64

89.49

89.46

89.35

89.27

Jan.

89.11

89.08

89.00

f88.90

88.87

88.82

88.74

88.67

88.62

88.54

88.47

88.33

88.09

87.97

87.90

87.77

87.64

87.52

Feb.

86.11

85.98

85.89

85.80

85.71

85.63

85.52

85.43

85.28

85.14

85.02

84.90

34.77

34.66

34.57

34.49

34.40

34.31

87.43 34.23

87.38

87.33

87.24

87.18

87.00

86.93

86.82

86.70

86.59

86.48

86.37

86.23

34.16

34.08

34.02

33.95

-33.91

33.85

83.81

83.77

83 . 69

_

_

-

Mar.

83.65

83.61

83.56

83.53

83.52

83.56

83.59

83.54

83.56

83.53

83.53

83.50

83.48

83.45

83.43

83.42

83.45

83.44

83.44

83.42

83.41

83.42

83.39

83.39

83.42

83.41

83.41

83.39

83.34

83.32

83.31

Apr.

83.32

83.31

83.34

83.34

83.35

83.36

83.33

83.37

83.40

83.38

83.38

83.39

83.43

83.49

83.58

83.69

83.77

83.91

84.03

84.19

84.30

84.48

84.64

84.78

84.90

85.00

85.04

85.10

85.13

85.16

-

May

85.14

85.13

85.13

85.19

85.17

85.13

85.13

85.16

85.21

85.27

85.39

85.64

85.98

86.47

87.06

87.68

88.22

88.66

89.05

89.25

89.34

89.45

89.58

89.86

90.08

90.19

90.34

90.56

90.88

91.09

91.18

June

91.22

91.26

91.25

91.26

91.49

91.71

92.08

92.26

92.15

92.00

91.80

91.85

92.10

92.40

92.60

92.83

93.01

93.21

93.38

93.57

93.86

94.17

94.41

94.64

94.60

94.48

94.28

94.13

93.98

July

93.92

93.93

93.90

93.83

93.75

93.60

93.45

93.28

93.00

92.85

92.60

92.35

92.30

92.38

92.45

92.47

92.48

92.48

92.75

92.90

92.85

92.85

92.98

Aug.

92.95

92.97

93.00

93.00

93.01

93.00

93.00

93.00

92.95

92.90

92.90

92.91

92.95

92.95

92.93

92.92

92.90

92.82

92.84

92.88

92.88

92.85

92.98

93.00 92.85

93.00

93.00

93.02

93.06

93.09

93.90J 93.10

93.03

92.81

92.80

92.84

92.87

92.89

92.92

92.94

Sept.

92.95

92.95

92.95

92.95

92.94

92.97

92.89

92.87

92.85

92.82

92.80

92.77

92.77

92.75

92.75

92.77

92.79

92.80

92.80

92.78

92.77

92.77

92.78

92.80

92.82

92.85

92.77

92.75

92.72

92.73

~

f Computed from partly estimated gage-height record.

Note. Computed from graph based on twice-daily staff-gage readings JE 

7~Eo~Aug. 5. Add 2,800 feet to obtain elevation above mean sea level.

5, 14-20, June 5, 9, June

Monthly elevation and consents, water year October 1943 to September 1950

Date

Calendar year 1949 .......

Feb. £8. ...................

Mar. 31.. ..................

Apr. 30. ...................

July 31..... ...............

Aug. 31... .................

Sept. 30. ...................

Water year 1949-50. ......

Elevation 

(feet)t

2 891 17

r

2 893 90

2,892.73

-

Contents 

(acre-feet)*

-

1,7E7,000

-

Change in contents 

during month 

(acre-feet)

-29,000

-109,000

-26,000

+39,000

evations at 12 p.m.

ntents above elevation 2,378
FEND OREILLE RIVER BASIN 

Plathead River lear Poison, Mont.

253

Location. Water-stage recorder, lat. 47°41' , long. 114°15', in NW&SE£ sec. n , T 22 N 

K. ui W., half a mile downstream from Ker- Dam and 6 miles downstream from Poison

Drainage area. 6,990 square miles.

Kecords available July 1907 to September 1350

Average discharge. 43 years, 11,230 second-^eet.

ioctreme s. Maximum discharge cmring year, 67,000 second-f°et June 25 (page height 18 02 

TeW; minimum, 1,280 second-feet Aug. 29 (gage height, 1.48 feet); "minimum daily,' 

1,730 second-feet Sept. C4.

Apr

--- .- -- t, , _- t.-eunu-i eei. Apr. lij, ISdB. 

Remarks.--Records excellent. Several small diversions from tributaries above Platb°ad

Lake. Plow regulated since April 1938 by Flathead Lake (see ^receding page) 

Revisions.--Revised figures of discharge, in second-feet, for the p°riod Oct 21-26 1947 

superseding those published in Water-Supply Paper 1122, are given herein:

Secondfoot-daya

338,750 31,500

5,251,210 , 54,800

5,205,140 i 72.700

3,980

4,140

1,560

10,930

14,390

14,220

Runoff In 

acre-feet;

Adjusted fc

Calendar year 1947. ...... 

Water year 1947-48. ......

Runoff In 

acre-feet

10,310,000 

10,300,000

Mean

14,250 

14,190

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

5,690

4,680

5,390

5,950

5,890

5,610

6,090

5,000

3,900

5,230

5,930

6,070

5,830

7,300

5,340

5,230

6,610

6,870

6,790

7,220

6,520

3,770

3,230

3,860

5,560

3,640

3,830

4,070

3,920

3,920

3,890

Nov.

5,040

5,960

5,600

6,430

5,710

4,760

6,260

6,440

6,760

6,720

6,350

6.410

5,830

6,330

6,800

6,770

6,650

6,770

6,790

6,400

6,860

6,800

6,630

5,470

6,980

6,880

4,790

7,230

7,170

7,340

-

Month

October. ............

November ............

December. ...........

Calendar year 1949

January .............

February ............

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

April ...............

May. ................

June ................

July. ...............

August ..............

September ...........

Water year 1949-50

Dec.

7,540

6,290

3,710

2,970

4,730

6,070

7,580

6,050

5,560

5,060

5,060

7,090

10,000

14,000

13,600

13,600

12,500

8,510

8,100

8,110

8,400

8,110

8,080

7.72C

7,360

7,570

8,100

8,010

7,980

7,720

7.86C

Jan.

7,?60

7,550

8,150

8,820

8,630

8,210

7,670

7,850

7,810

8,180

8,340

9,200

10,600

10,200

10,300

10,300

10,300

10, 200

9,970

9,710

9,360

9,160

10,300

11,200

11,100

11,100

11,500

11,800

10,800

11,200

11,500

Feb.

11,900

10,900

8,970

8,860

3,260

3,850

10,600

10,700

11,300

1 1 , 200

10,300

10,600

10,400

3,830

8,370

8,360

8,810

8,550

8,320

8,820

8,100

7,320

7,960

7,730

6,760

6,700

7,810

6,580

-

-

-

Mar.

6,700

6,460

6,530

6,050

5,680

6,920

6,560

6,490

6,500

6,510

6,:; 40

6,:.90

6,160

6,;L oo

5,870

5,950

5,890

5,990

5,610

6, 210

6,010

6,040

5, 310

5,330

5,320

5,730

6,310

5,870

5,740

5,630

5,640

Observed

Discharge in 

second-feet

Maximum

7,300

7,340

14,000

46,400

11,800

11,900

6,920

12,900

44 , 500

65,500

61,400

21,500

6,090

65,500

Minimum

3 230

4! 760

2,970

1,560

7,260

6,580

5,610

5,060

12,100

45,000

7,600

4,150

1,730

1,730

Mean

5,253

6,368

7,840

10,340

9,622

9,166

6,104

7,805

24,970

54,250

33,960

9,277

4,130

14,910

Runoff

in 

acre- feet

323 OOC

378^300

482 , 10C

7,48E,000

531,600

509,100

37E',30G

464,400

1,535,000

3,22£,000

2,08£,000

570,400

245,800

10,790,000

Apr.

5,270

5,410

5,620

5,490

5,820

5,810

5,620

5,780

5,060

6,450

5,930

5,820

5,720

6,130

6,190

5,830

6,980

7,260

7,930

8,520

8,250

9,200

9,970

11,200

11,100

11,800

12,300

12,900

12,500

12,300

-

May

12,500

12,600

12,600

12,400

12,100

12,300

12,400

12,500

12,500

12,700

13,200

13,900

15,000

16,900

19,900

23,900

26,900

29,500

31,600

32,800

33,400

33,700

35,200

36,900

38,100

38,700

39,300

40,400

42,000

43,600

44,500

Change In

contents In 

Plathead 

Lake

(acre-feet)

-156,000

-58,000

-177,000

-29,000

-368,900

-304,100

-45,000

+220,300

+733,700

+341,000

-109,000

-12,000

-26,000

+39,000

June

45,100

45,100

45 , 000

45,000

45,600

47,400

49,300

49,900

50,000

49,400

48,300

48,300

49,000

50,600

51,900

52,900

54,500

55,900

57,100

58,200

59,600

61,000

62,900

64,700

65,500

65,400

64,400

62,900

61,700

60,900

-

July

61,000

60,900

61,400

60,800

60,500

59,800

58,600

57,600

56,500

55,300

53 , 300

49,700

35,300

20,300

22,500

28,900

29,000

17,200

7,600

11,200

24,200

24,600

10, 600

16,100

18,400

17,600

14,300

15,800

13,900

13,300

16,600

Aug.

21,500

11,000

8,020

12,700

13,600

10,800

9,220

11,500

14,000

13,000

11,100

10,100

9,020

8,950

8,750

8,370

8,720

8,950

8,830

7,660

7,360

8,460

8,350

7,990

8,280

8,620

4,720

4,150

4,580

4,670

4,610

Sept.

4,690

5,200

5,580

4,800

5,820

5,510

5,560

6,090

5,550

5,140

4,720

4,700

4,620

4,940

4,170

2,050

1,880

3,750

4,000

3,540

4,290

4,220

2,200

1,730

3,840

3,340

2,980

2,240

3,460

3,300

~

Adjusted fcr change In

reservoir contents

Runoff

in 

acre-feet

167,000

320,900

305,100

7,456,000

222,700

205 OOO

330!300

684,700

2,269,000

3,569,000

'558]*00

219,800

10,830,000

Discharge in 

seccnd-feet

Per 

Mean square 

mile

2, 716

5,393

4,962

10,300

3,652

3 , 691

5 372

11 ! 510

36,900

59,930

32,190

9,031

3,614

14,930

Runoff

- in 

inches
PEND OREILLE RIVER BASIN

Middle Pork Fiathead River at Essex, Mont.

Drainage area.--517 square miles.

Records available.--October 1939 to September 1950.

Average discharge.--11 years. 3 7 1 second-feet.

Extremes. Maxlmom discharge during year, 11,800 second-feet June 6 (gage height, 10.01 

 feet); minimum, 98 second-feet Mar. 17 (gage height, 1.92 feet).

1939-50: Maximum discharge, 14,500 second-feet May 22, 1948 (gage height, 10.95

feet, from partly estimated gage-height record); minitrum, 17 second-feet Jan. 11, 1941

(gage height, 1.30 feet, caused ty ice jam upstream).

Rating table, water year 1949-50, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Nov. 29 to Apr. 24, May 9 to June 2)

2.2 160 4.6 1,590 

2.5 254 5.3 2.360 

2.9 415 6.3 3,800 

3.3 610 7.B 6,540 

3.8 930 9.4 10,200

Discharge, in second-feet, water year October 1949 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

Oct.

184 

184 

190 

184 

190

212 

206 

196 

190 

206

212 

224 

224 

E12 

209

215 

212 

199 

190 

187

190 

184 

184 

181 

181

181 

184 

283 

530 

496 

433

Nov.

393 

363 

346 

329 

321

310 

302 

294

286 

283

279 

317 

442 

460 

456

438 

411 

389 

367 

363

329 

329 

371 

380 

424

566 

895 

1,500

1,220 

*9B2

Dec.

834 

776 

694 

560 

515

480 

450 

442 

410 

390

371 

390 

400 

400 

400

350 

340 

333 

325 

340

360 

380 

360 

340 

300

280 

280 

300 

350 

380 

350

Jan

300

200 

200 

*220 

250

270 

300 

320 

320

300

260 

240 

200 

170 

150

150 

160 

180 

200 

240

280 

400 

380 

350 

320

300 

260 

240 

230 

220 

220

j t%\

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber . .

 1

lendar year 1949 ....

Feb.

230 

250 

300

320 

320

320 

320 

310 

300 

300

290 

*2BO 

280 

300 

3uO

290

290 

265 

251 

241

234 

234 

238 

244 

247

251 

302 

302

ond-

-days

7,053 

14,145 

12,880

340,465

h ..... ..........

1 . . . . . . . ..... ....

st .................. ...

ember ............. .......

7,830 

7,809 

10,542 

24,402 

49,670 

19,090 

80,322 

17,255 

8,121

ter year 1949-50..... .... 559,119

Mar

268 

302 

302 

367 

496

545 

520 

478 

428 

393

371 

371 

402 

393

358

337 

310 

333

310

286 

286 

279 

268 

272

265 

25S 

258 

247 

251 

251

Maximum

530 

1,500 

834

7,950

400 

320 

545 

1,790 

9,200 

10, 100 

7,020 

823 

346

10,100

Apr.

346 

438 

415 

371 

371

375 

371 

375 

371 

358

354 

380

469 

628 

795

895 

1,260 

1,220 

1,140 

1,190

1,540 

1,790 

1,580 

1,360 

1,250

1,140 

1,040 

938 

B47 

795

May

808 

814 

782 

736 

730

724 

756 

860 

1,060 

1,410

2,440 

4,130 

5,710 

8,450 

9,200

8,360 

7,800 

6,980 

5 , 480 

4,420

4,450 

7,510 

9,180 

7,020 

6,200

6,560 

7 ,7BO 

8,620 

7,420 

6,400 

5,880

June

6,

5, 

5, 

7, 

9,

10, 

7, 

5, 

4, 

3,

*J

9, 

9, 

9,

8,

8, 

8, 

8, 

9, 

9,

9, 

9, 

7,

6, 

5,

5, 

5, 

5, 

6, 

7,

Minimum Mean

181 228 

279 472 

280 415

100 933

150 253 

230 279 

247 340 

346 813 

724 4,828 

3,660 7,303 

895 2,591 

358 557 

224 271

150 1,532

Peak discharge (base, 4,400 sec. -ft .) .--May 15 (8 a.m.) 9,660 sec. -ft.;

160 

310 

520 

280 

220

100 

690 

670 

450 

860

500 

330 

970 

080 

750

750 

020 

450 

100 

420

800 

460 

780 

400 

770

020 

040

770 

360 

060

1950

July

7,020 

6,220 

5,640 

5,240 

4,950

4,520 

4, 150 

3,670 

3,260

3,170

2,900 

2 , 450 

2,220 

2,080 

1,980

1,920 

1,740 

1,610 

1,570 

1,550

1,440

1,350 

1,280 

1,210 

1,160

1,120 

1,060 

1,020 

982 

945

Per 

square 

mile

0.441 

.913

.803

1.80

.489 

.540 

.658 

1.57 

9.34 

14.1 

5.01 

1.08 

.524

2.96

May 23

Aug.

828 

795 

762 

762

769

712 

688 

658 

640

658

616 

SIS 

582 

555 

530

525 

515 

496 

478 

456

438 

424 

446 

492 

460

433

415 

397 

384 

367 

358

Sept.

346 

333 

325 

317 

310

306 

294 

290 

286 

283

279 

272 

268 

261 

276

294 

272 

261 

251 

244

238 

234 

231 

228 

224

238 

251 

244 

234 

231

'

Runoff

Inches Acre feet

0.51 13,990 

1.02 28,060 

.93 25,550

24.51 675,300

.56 15,530 

.56 15,490 

.76 20,910 

1.75 48,400 

10.77 296,900 

15.73 434,600 

5.78 159,300 

1.24 34,220 

.58 16,110

40.19 1,109,000

(5 a.m.) 10,700

3.-ft.; May 28 (6 a.m.; 9,060 sec.-ft.; June 6 (2:30 a.m.) 11,800 

10,700 sec.-ft.; July 1 (4 a.m.) 7,510 sec.-ft.

* Winter discharge measurement made op this day.

Mote. Stage-discharge relation affected by ice Dec. 6, 7, 9, 10, 12-17, Dec. 20 to Feb. 16 (no 

gage-height record Feb. 2-11; discharge computed on basis of temperature records and records for 

Middle Pork Plathead River near West Glacier.
FEND OREILLE RIVER BASIN 255

Middle Pork Flathead River near West Glacier, Mont.

Location Staff gage, lat. 48°29'50", long. 114°00'30", in NE£ sec. 34, T. 32 N. , R. 19 

w., tnree-quarters of a mile downstream from McDonald Creek, l£ miles west of West 

Glacier (formerly Belton) , and 3j miles upstream from mouth.

Drainage area.--1,140 square miles.

Average discharge. 11 years, 2,605 second-feet.

Records available.--October 1939 to September 1950. Prior to October 1947, published as 

Middle J?p orn: jiuathead River near Belton.

Extremes. Maximum discharge observed during year, 23,600 second-feet June 6 (gage height, 

a.YU feet) ; minimum daily discharge, 400 second-feet Jan. 15-17.

1939-50: Maximum discharge, 32,600 second-feet May 23, 1948 (gage height, 12.40 

feet, from floodmark); minimum observed, 232 second-feet Jan. 21, 1940 gage height, 

1.08 feet).

Remarks.--Records fair except those for periods of ice effect and those for periods of 

doubtful or no gage-height record, which are poor. No regulation or diversion. Gage 

read once daily.

g table, water year 1949-50, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

1.4 

1.6 

2.0 

2.5

471

615

970

1,510

3.0 

3.5 

4.0 

4.5

2,230

3,220

4,460

5,830

5.0 

6.0 

7.0 

9.7

7,300

10,500

13,900

23,600

Discharge, in second feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

697 

715 

732 

750 

767

785 

603 

803 

803 

821

839 

839 

803 

785 

785

767 

732 

697 

664 

631

600 

585 

585 

585 

570

570 

570 

585 

1,510 

1,440 

1,390

Nov.

1,350 

dl,250 

 "1,150 

dl , 100 

dl , 100

(11,100 

(11,100 

dl,100 

(11,050 

dl,O5O

31,100 

1,170 

(11,350 

dl , 400 

dl,400

dl.300 

dl,200 

dl,100 

dl,100 

dl,050

dl , 000 

d950 

dl,000 

dl,000 

(11,100

dl , 200 

d2,200 

4,460 

3,940 

3,450

Dec.

3,000 

2,580 

*2,370 

d2,100 

dl,950

dl,900 

1,890 

1,720 

1,510 

1,390

bl,350 

bl,300 

bl,350 

1,350 

1,320

1,320 

bl.100 

b850 

b600 

bSOO

b700 

b900 

bl,OOO 

b850 

b700

b650 

b650 

b850 

951 

932 

913

Jan.

621 

b600 

b450 

bSOO 

b600

697 

715 

715 

732 

750

664 

585 

512 

b450 

b400

b400 

b400 

b450 

bSOO 

b650

839 

1,350 

1,320 

bl,100 

b950

bSOO 

b700 

b600 

b550 

b550 

b550

Feb.

b550 

b600 

*b720 

750 

750

750 

732 

732 

697 

697

661 

681 

681 

681 

681

661 

697 

697 

697 

715

697 

697 

697 

715 

715

715 

715 

715

u iv. Second 

Month foot-days

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 ...... 

ary

24,206 

43,820 

40,546

922,397

st ........................

ember .....................

20,900 

19,536 

30,620 

74,595 

93,270 

91,480 

35,180 

60,360 

27,324

ter year 1949-50 ......... 1,361,859

Peak discharge (base, 8,7OO sec. -ft.). m

charge untaown); May 28 (2 p.m.) 18,100 sec 

p.m.) 23,300 sec. -ft.; June 30 (7:30 p.m.) 

* Winter discharge measurement made on th 

a No gage-height record; discharge interp 

River stations. 

b Stage-discharge relation affected by ice 

d Doubtful gage-height record; discharge c 

stations.

Mar.

767 

875 

9E1 

1,070 

1.3CO

1,390 

1,390 

b 1,300 

bl,2EO 

b 1,200

bl,OE.O 

b 1,000

bl'oSO 

bl,OE.O

biiooo

970 

9"'0 

9"'0

9 ".2

894

*7''6

a7BO 

785 

732 

732 

7!52 

a74O

Maximum

1,510 

4,460 

3,000

19,4,00

1,550 

750 

1,590 

6,120 

18,100 

23,300 

15,500 

2,780 

1,320

23,600

Apr

875 

1,090 

1,050 

1,050 

1,030

1,030 

1,090 

1,090 

1,090 

al , 1OO

1,150 

1,150 

1,260 

1,350 

a2,OOO

2,910 

3,840 

3,690 

4,200 

a5,OOO

6,120 

5,440 

4,460 

4,200 

3,550

3,130 

2,870 

2,780 

2,580 

2,400

May

2,400 

2,400 

2,400 

2,400 

2,230

2,400 

2,400 

2,560 

3,360 

a4,500

6,000 

7,300 

8,900 

10,500 

17,900

16,100 

15,800 

13,500 

13,200 

a!2,000

11,200 

11,900 

a!6,OoO 

al4,000 

11,200

11,900 

al4,000 

18,100 

14,600 

11,000 

11,000

Minimum

570 

950 

500

300

400 

550 

732 

675 

2,230 

8,580 

3,000 

1,440 

660

400

ly 15 [6:3O p.m. 

-ft. ; June 6(1: 

6,500 sec. -ft. 

s day. 

Jlated or compute

oraputed on basis

17 

15

of

June

10,900 

10,800 

10,800 

15,500 

2O,OOO

23,600 

16,300 

a!3,000 

9,860 

8,580

9,540 

16,900 

22,500 

a21,0oo 

19,700

18,900 

18,700 

18,400 

2O, 7OO 

21 , 500

22,600 

23,300 

319,000 

15,600 

12,900

12,000 

13,300 

14,000 

15,100 

16,500

Mean

781 

1,461 

1,308

2,527

674 

696 

988 

2,466 

9,460 

16,380 

7,566 

1,948 

911

3,731

July

15,300 

15,100 

15,100 

14,300 

13,600

12,900 

all, 500 

10,200 

9,540 

8,90O

8,640 

8,320 

7,680 

7,000 

6,640

6,120 

5,550 

5,330 

5,220 

5,000

4,780 

4,620 

4,460 

4,410 

4,200

3,990 

3,790 

3,500 

3,310 

3,180 

3,000

Per 

square 

mile

0.685 

1.28

1.15

2.2E

.591 

.612 

.867 

2.18 

6.30 

14.4 

6.65 

1.71 

.799

3.27

Aug.

2,760 

2,700 

2,580 

a2,500 

2,440

2,370 

2,230 

2,070 

2,040 

2,010

1,950 

1,890 

1,860 

1,840 

1,780

1,920 

1,780 

al,670 

1,560 

1,490

1,460 

2,170 

2,070 

1,980

1,920

,780 

,640 

,510 

,490 

,460 

,440

Sept.

1,260 

al,300 

1,320 

1,280 

al,220

1,150 

al,130 

1,110 

1,030 

990

951 

913 

894 

875

875

875 

839 

767 

a750 

732

697

681 

a680 

681 

a730

785 

732 

715 

681 

681

Runoff

Inches

0.79 

1.43

1.33

30.08

.68 

.64 

1.00 

2.43

ie!o7

7.67 

1.97 

.89

44.47

Acre-feet

48,020 

86,920 

80,420

1,830,000

41,450 

36,750 

60,730 

148,000 

581,700 

974,800 

466,500 

119,800 

54,200

2,7O1,OOO

,900 sec. -ft.; May 23 (time and disp.ra. ) 23,600 sec. -ft.; June 22 (1

n basis of records for other Plathead 

records for other Plathead River
356 PEND OREILLE RIVER BASIN

Bear Creek near Essex, Mont.

Location. Water-stage recorder, lat. 48°1S I 50", long. 113°25'3G", near south line of sec.

y, T. 29 N., R. 14 W., three-quarters of a mile downstream from Autumn Creek and 8j

miles northeast of Essex. 

Drainage area.--20.7 square miles. 

ttecoras available .--January 1946 to September 1950. 

Extremes. Maximum discharge during year, 620 second-fe°t Jure 12 (rage height, 2.86 feet);

minimum daily, 6.5 second-feet Jan. 13, 14.

1946-50: Maximum discharge, 696 second-feet May 22, 1948 (gage height, 3.01 feet);

minimum daily, 5.5 second-feet Jan. 21 to Mar. 4, Mar. 8-16, 1949. 

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

wnich are poor. No diversions. Records collected in conjunction with Upper Columbia

River Snow Laboratory. 

Cooperation. Gage-height record and ten discharge measurements furnished by Corps of Engineers.

Hating tables, water year 1949-50, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used May 29 to June 11, July 28 to Sept. 14)

Oct. 1 to May 22 May 23 to Sept. 30

1.0 

1.2 

1.4

160

235

329

405

.7 44

0.8

1.1

1.2 

1.4 

1.6

254

384

545

132

174

Discharge, in second-feet, water year October 1949 to September 1950

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

Oct.

8.7 

8.7 

9.0 

8,7 

9.6

9.6 

9.3 

9.0 

9.0 

9.3

9.3 

10 

9.6 

9.3 

9.3

9.6 

9.0 

10 

14

12

9.3

9.0 

9.0 

9.0 

9.0

9.0 

9.3 

14 

16

12 

11

Nov.

10 

10 

10 

10 

9.3

9.6

10 

11 

8.7 

9.0

9.0 

12 

18 

15 

17

14 

13 

13 

14 

13

b!3 

13 

14 

14 

23

24 

45 

38 

*30 

26

Dec .

24 

23 

20 

blS 

b!6

b!4

b!2 

all 

bll 

alO

alO 

blO 

alO 

blO 

blO

blO 

b9 

b8.5 

bS.S 

b9

b9 

b9 

b9 

b9 

b9

b9 

b9 

b9 

b9 

bS.S 

b8 

j

Jan.

b7.5 

b7 

*b6.7 

b7 

b7.5

b8.5 

b9 

b9 

b9 

a9

bS 

a7.5 

a6. 5 

aS. 5

a7

aS 

a8. 5 

aS. 5 

b9 

a9

as 

blO 

a9

ae 

a7

a7 

a7 

a7 

a7 

a7 

a7

Feb.

b7 

a7 

a7.5

ae

aS

hS.l 

aS 

hS.l 

as 

aS

a8 

aS

ae 

as 

aS

hS.l 

aS 

h8.1 

aS 

h7.5

a8 

hS.l 

as 

ae 

aS

h8. 4 

a8. 5 

a9

Month SecondMontn foot-days

Octc 

Move 

Dace

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary .

309.6 

475.6 

351.5

11,539.5

h ........... .............

ember ..... ...............

243.7 

223.4 

327.4 

831 

5,525 

7,959 

2,378 

677 

46S

ter year 1949-50 .......... 19,769.2

Peak discharge (base, 150 sec. -ft.). May

ft.; May 27 (B p.m.J 388 sec. -ft.; June 5 (8 

June 18 (8 p.m.) 374 sec. -ft.

Mar.

b9 

9.6

10 

15 

17

*17 

15 

14 

b!3 

b!2

bll 

bll 

blO 

blO 

10

10 

b9.5 

b9.5 

b9.5 

9.3

9.3 

9.3 

9.0 

9.0 

8.7

8.7 

8.7 

8.4 

8.4 

8.1 

8.4

Maximum

16 

45 

24

258

10 

9 

17 

67 

374 

519 

188 

30 

16

519

Apr.

14 

15 

14 

13

11

all 

11 

11 

11 

11

11 

12 

17 

23 

27

30 

44 

44 

36 

42

67 

67 

52 

41 

39

36 

34 

30 

29

28

May

30 

28 

26 

25 

24

24 

25 

30 

36 

58

115 

196 

315 

315 

295

267 

252 

206 

160 

135

193 

374 

327 

242 

222

254 

320 

304 

251 

242 

234

June

225 

198 

206 

273 

366

357 

242 

181 

159 

159

201 

519 

424 

353 

314

304 

283 

340 

343 

334

317 

291 

234 

201 

193

176 

174 

181 

188 

196

Minimum Mean

S.7 9.99 

8.7 15.9 

8 11.3

5.5 31.6

6.5 7.86 

7 7.98 

8.1 10.6 

11 27.7 

24 178 

159 265 

31 76.7 

16 21.8 

14 15.6

6.5 54.2

13 (7 p.m.) 426 sec. -ft.; May 

:30 p.m.) 463 sec. -ft.; June

July

188 

174 

161 

152 

140

127 

114 

101 

93 

90

35 

77 

69 

64 

63

60 

57 

53 

51 

49

47 

44 

41 

40 

38

36 

36 

33 

32 

32 

31

Per 

square

mile

0.483 

.766 

.546

1.53

.380 

.386 

.512 

1.34 

8.60 

12.8 

3.71 

1.05 

.754

2.62

Aug.

30 

28 

27 

30 

30

27 

25 

24 

24 

24

23 

23 

22 

20 

20

20 

20 

20 

20 

16

16 

18 

20 

2O 

18

18 

18 

18 

18 

18 

18

Sept.

18 

18 

16 

18 

18

18 

17 

17 

16 

16

16 

15 

15 

15 

17

16 

16 

15 

15 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

Runoff

Inches

0.56 

.86 

.63

20.73

.44 

.40 

.59 

1.50 

9.92 

14.28 

4.28 

1.21 

.84

35.51

Ac re- feet

614 

943 

697

22,880

483 

443 

649 

1,650 

10,960 

15,790 

4,720 

1,340 

928

39,220

22 (4:30 p.m. ) 462 sec.- 

12 (4:30 a.m.) 620 sec. -ft.;

* w.Liiuer discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of temperature records and records for Skyland Creek near Essex.

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading.
PEND OREILLE RIVER BASIN 257

Skyland Creek near Essex, Mont.

Location. --Water-stage recorder, lat. 48° 17 'SO", long. 113° 23 "20", in NW£ sec. 9, T. 29 

N. , R. 14 W., ISO feet upstream from mouth and 10 miles northeast of Essex.

Drainage area. 8.09 square miles.

Records available. January 1946 to September 1950.

Extremes . Maximum discharge during year, 26£ second- feet June 12 (gage height, 2.46 

feet ) ; minimum daily, 2 second-feet Jan. 3, 4, 14, 15, 26-30.

1946-50: Maximum discharge, 284 second-feet May 22, 1948; maximum gage height, that 

of June 12, 1950; minimum discharge, 0.1 second-foot Nov. 15, 1946 (gage height, 0.12 

foot, caused by ice jam upstream).

Remarks. Records good except those for perlcds of ice effect, which are poor. No diversions. Records collected in conjunction v\lth Upper Columbia River Snow Laboratory.

Cooperation. Gage-height record and fourteer discharge measurements furnished by Corps of 

Engineers.

Rating table, water year 1949-50, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-20, Mar. 11 to May 14)

0.4 3.0 0.8 15 1.4 76 

.5 4.9 .9 21 1.7 126 

.6 7.5 1.0 28 2.3 237 

.7 11 1.2 49

Discharge, in second-feet, water year October 1949 to September 1950

Day

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.6 

4.6 

4.6 

4.6

4.9 

4.6 

4.6 

4.6 

4.6

4.6 

4.9 

4.6 

4.6 

4.6

4.6 

4.2 

b4.2 

b4.4 

b4.4

4.6 

4.6 

4.6 

4.6 

4.6

4.6 

4.9 

*5.6 

6.1 

5.4 

5.1

Nov.

4.9 

4.9 

4.9 

4.6

4.6 

4.6 

4.6 

4.4 

4.2

*4.2 

4.6 

6.1 

5.4 

5.4

4.9 

4.6 

4.6 

4.6 

4.4

b4.4 

4.4 

4.4 

4.4 

5.9

6.1 

11 

9.4 

*7.8 

6.9

Dec.

6.4 

b6 

b6 

b6

b5.5 

5.4 

b5.5 

b5 

b4.5

b4 

b4 

b4.5 

b4. 5 

b5

b5 

b5 

b4 

b4 

b4.5

b4.5 

4.4 

4.2 

4.2 

4.2

4.2

4.0 

b4 

b4 

b4 

4.2

Jan.

b2.5 

b2

*b2 

b2.5

b3 

3.6 

3.6 

3.6 

3.4

3.3

3.0 

b2.5 

b2 

b2-

3.1 

3.1 

3.1 

3.1 

3.3

4.6 

5.6 

4.2 

4.0 

b3

b2 

b2 

b2 

b2 

b2 

b2.5

Feb.

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.1 

3.1 

3.0 

3.0 

3.0

3.0 

2.8 

2.8

2.8 

2.8

3.0 

3.3 

3.1

Month Second 

foot-days

Octo 

Move 

Dece

Ca

Jam: 

Febi 

Hare 

Apri 

May 

June 

Jul\ 

Augu 

Sept

Wa

ber . . 

mber

lendar year 194S 

&Ty

.

1 .........................

st ........................

ember .....................

146.1 

160.1 

147.4

,777.4

92.0 

83.8 

94.2 

144.5 

,390.1 

,665 

,587 

386.0 

245.8

ter year 1949-50 ........... 9,142.0

Peak discharge (base, 65 sec. -ft.). May

124 sec. -ft.; June 5 (10 p.m.) 201 sec. -ft.

Mar.

3.0 

2.8 

2.8 

3.3 

3.3

*3.3 

3.0 

3.0 

b3.0 

3.3

3. 1 

3. 1 

3.1 

3. 1 

3.0

3.0 

b3.0 

b3.0 

3.0 

3,0

3,0 

3,0 

3,0 

3.0 

3,0

3 ,0 

3.0 

3.0 

3.0 

3.0 

3.0

Maximum

13.1 

11 

6.7

119

5.6 

3.3

15.3 

13.4 

117 

237

143 

17

237

Apr.

4.0 

3.6 

3.4 

3.1 

3.1

3.1 

3.1 

3.1 

3.1 

3.3

3.3 

3.3 

3.8 

4.2 

4.4

4.4 

5.4 

5.4 

5.1 

5.9

7.5 

8.4 

7.8 

6.9 

6.7

6.4 

6.1 

5.6 

5.6 

5.4

May

5.4 

5.1 

5.1 

4.9 

4.9

4.9 

4.6 

4.6 

4.9 

6.7

11 

22 

41 

57 

61

61 

59 

52 

41 

33

38 

78 

87 

69 

65

73 

97 

117 

102 

89 

86

June

82 

72 

78 

106 

162

169 

135 

108 

90 

84

102 

237 

235 

205 

186

182 

184 

224 

233 

228

226 

208 

176 

153 

139

121 

119 

130 

142 

149

Minimum Mean

4.2 4.71 

4.2 5.34 

4 4.75

3 13.1

2 2.97 

2.8 2.99 

2.8 3.04 

3.1 4.82 

4.6 44.8 

72 156 

17 51.2 

9.4 12.5 

6.9 8.19

2 25.0

July

148 

137 

121 

113 

103

90 

82 

70 

62 

57

53 

47 

42 

39 

37

36 

35 

31 

28 

27

25 

24 

23

22 

21

20 

20 

20 

19 

18 

17

Per 

square 

mile

0.582 

.660 

.587

1.62

.367 

.370 

.376 

.596 

5.54 

19.3 

6.33 

1.55 

1.01

3.09

Aug.

17 

17 

15 

16 

15

15 

14 

14 

14

14

13 

13 

12 

12 

12

12 

12 

11 

11 

11

11 

11 

12 

12 

11

10 

10 

10 

9.8 

9.8 

9.4

Sept.

9.4 

9.4 

9.1 

9.1 

9.1

9.1 

8.8 

8.8 

8.4 

8.4

8.4 

8.4 

8.1 

8.1 

9.4

8.8 

8.1 

8.1 

7.8 

7.8

7.8 

7.8 

7.5 

7.2 

7.2

7.5 

7.2 

7.2 

6.9 6.9'

Runoff

Inches

0.67 

.74 

.68

21.96

.42 

.39 

.43 

.66 

6.39 

21.53 

7.30 

1.79 

1.13

42.13

Acre-feet

290 

318 

292

9,470

182

166 

187 

287 

2,760 

9,250 

3,150 

766 

488

18,140

12 (7:30 p.m.) 1O8 sec. -ft.; May 28 (12:3C a.m. to 2 a.m.) 

June 12 (8:30 p.m.) 268 sec. -ft.; June 18 (8 p.m.) 246

sec.-ft.; June 30 (7 to 9 p.m.) 158 sec.-ft.

* Winter discharge measurement made on this day 

b Stage-discharge relation affected by ice.
PEND OREILLE RIVER BASIN 

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

Location. Water-stage recorder, lat. 47°55'20", long. 113°31'25", in SWv sec. 17, T. 25 

N., R. 15 W., 600 feet south of Spotted Bear ranger station, 1,000 feet upstream from 

Spotted Bear River, and 40 miles southeast of Hungry Horse.

Drainage area.--959 square miles.

Records available.--August 1948 to September 1950.

Extremes.--Maximum discharge during year, 15,600 second-feet June 21 (ga?e height, 10.54 

feet); minimum daily, 230 second-feet Jan. 30, 31.

1948-50: Maximum discharge, that of June 21, 1950; minimum daily, 160 second-feet 

Feb. 5-8, 1949.

Flood of May-June 1948 reached a stage of 14.00 feet about May 22 (discharge 22,000 

second-feet, by slope-area determination of peak flow).

Remarks.--Records good except those for Dec. 

or regulation.

to Mar. 22, which are poo". No diversion

Rating table, water year 1949-5O, except period of Ice effect

(gage height, In feet and discharge, In second-feet)

(Shifting-control method used Apr. 12 to May 15)

0.6 236 2.0 830 5.0 4,3OO 

.8 290 2.5 1,160 6.0 6,100 

L.O 352 3.0 1,540 8.0 10,100 

1.3 463 3.5 2,040 9.0 12,200 

1.6 603 4.0 2,730 10.5 15,500

Discharge, in second-feet, water year October 1949 to Se

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

308 

308 

311 

302 

308

323 

323 

317 

314

336

336 

339 

336 

333 

330

326 

330 

323 

317 

314

311 

305 

305 

302 

296

296 

293 

342 

624 

608 

548

Nov.

511 

484 

459 

443 

427

419 

412 

397 

390 

386

372 

393 

497 

525 

544

525 

502 

484 

472 

467

435 

416 

439 

472 

593

830 

1,100 

1,390 

1,270 

1,170

Dec.

1,070 

1,020 

940 

800 

712

712 

578 

530 

490 

440

404 

400 

420 

430 

431

430 

430 

420 

386

386

369 

383 

404

416 

372

369 

376 

419

386 

372 

326

Jan

342 

305 

259 

250 

270

320 

340 

350 

350 

350

340 

320 

310 

296 

280

280 

280 

280 

300 

320

360 

400 

420 

370 

330

300 

280

260 

240 

230 

230

Feb.

240 

260 

280 

310 

340

370 

380 

*370 

370 

360

350 

360 

360 

370 

370

380 

380 

380 

380 

370

370 

360 

360 

370 

380

380 

380 

370

Month SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber .............. ......

lendar year 1949 . . ...

10,664 

17,224 

15,621

556,313

h .................. ......

1 . . . .....................

ember ..................

9,562 

9,950 

12,632 

40,798 

181,270 

519,340 

L 82, 680 

44,170 

15,767

ter year 1949-50. ......... 859,678

Mar

*350 

360 

380 

400 420-

460 

450 

440 

420 

380

360 

360 

360 

370 

370

370 

380 

380 

390 

440

480 

470 

455 

439 

439

435 

427 

419 

*408 

408 

412

Maximum

624 

1,390 

1,070

13,300

420 

380 

480 

3,120 

10,500 

15,300 

13,100 

2,290 

741

15,300

Apr.

463 

548 

568 

544 

530

548 

603 

651 

656 

640

635 

690 

862 

1,130 

1,300

1,350 

1,720 

1,900 

1,830 

1,980

2,680 

3,120 

2,800 

2,370 

2,160

1,980 

1,820 

1,680 

1,560 

1,480

May

1,480 

1,480 

1,450 

1,410 

1,370

1,340 

1,330 

1,390 

1,500 

1,710

2,500 

3,950 

6,630 

9,210 

10,500

9,800 

9,750 

8,830 

7,190 

5,780

5,350 

7,930 

10,200 

8,590 

7,450

7,730 

9,190 

10,500 

9,650 

8,390 

7,690

ptember 1950

June

8, 

7, 

7, 

9,

12,

13, 

10, 

8, 

6, 

5,

6, 

11, 

12, 

12, 

12,

13, 

13, 

12, 

12, 

14,

15, 

14, 

12, 

10, 

9,

7, 

7, 

8, 

10, 

12,

Minimum Mean

293 344 

372 574 

326 504

160 1,524

230 308 

240 355 

350 407 

463 1,360 

1,330 5,847 

5,830 10,640 

2,220 5,893 

776 1,425 

401 526

230 2,355

Peak discharge (base, 7.50O sec. -ft.). May 15 (5 a.m.) 11,000 sec. -ft.

130 

430 

530 

480 

400

600 

800 

370 

730 

830

580 

100 

600 

400 

500

300 

300 

400 

500 

100

300 

700 

500 

300

170

830 

490 

670 

300 

000

July

13,100 

12,300 

11,300 

10 , 800 

10,400

9,770 

9,330 

8,610 

7,850 

7,770

6,850 

5,870 

5,170 

4,900 

4,740

4,940 

4,370 

3,840 

3,790 

4,180

3,860 

3,490 

3,470 

3,330 

3,060

2,900 

2,730 

2,720 

2,580 

2,440 

2,220

Per 

square 

mile

0.359 

.599

.526

1.59

.321 

.370 

.424 

1.42 

6.10 

11.1 

6.14 

1.49 

.548

2.46

j May 23

Aug.

,020 

,890 

,820 

,770 

,890

,160 

,290 

,020 

,860 

,780

,670 

,640 

,560 

,480 

,420

,380 

,330 

,260 

,210 

,150

,100 

,050 

,050 

,100 

,030

980 

934 

888 

850 

812 

776

Sept.

741 

712 

690 

662 

640

624 

603 

588 

573 

558

544 

525 

511 

497 

511

525 

502 

484 

467 

451

439 

427 

416 

404 

401

431 

467 

476 

455 

443

Runoff

Inches

0.41 

.67 

.61

21.58

.37 

.39 

.49 

1.58 

7.03 

12.38 

7.08 

1.72 

.61

33.34

(6 to 9

Acre-feet

21,150 

34,160 

30,980

1,103,000

18,970 

19,740 

25,060 

80,920 

359,500 

633,400 

362,300 

87,610 

31,270

1,705,000

a.m. )

(7 a.m.) 15,600 sec.-ft,j July 1 (8 a.m.) 13,600 sec.-ft.

* ¥inter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 9, 10, 12-14, 16-18, Jan. 4-13, Jan. 15 to 

Mar. 22 (no gage-height record Jan. 29 to Feb. 7, Feb. 9-28; discharge computed on basis of temperature records and records for station near Columbia Palls).
PEND OREILLE RIVER BASIN 2, 

South Fork Flathead River near C olumbia Falls, Mont.

Location.--Water-stage recorder, lat. 48°22', long. I14°03', in NE£ see. 17, T. 30 N. , 

H. la W., 2 miles upstream from mouth and 9 miles east of Columbia Falls. Datum of 

gage is 3,030.3 feet above mean sea level, datum of 1929 (Corps of Engineers bench 

mark).

Drainage area. 1,640 square miles.

Records available.--September 1910 to September 1916, April 1923 to September 1950.

Average discharge. 81 years (1928-32, 1933-50), 3,182 second-feet.

Extremes. Maximum discharge during year, 29,400 second-feet June 22 (gaee height, 16.90 

reet); minimum, 555 second-feet Oct. 25 (gape height, 2.40 feet).

1910-16, 1923-50: Maximum discharge observed, 46,200 second-feet June 19, 1916 

(gage height, 16.6 feet, site and datum then in use), from rating curve extended 

above 20,000 second-feet; minimum discharge, 206 second-feet Dec. 6, 1935, discharge 

measurement.

Remarks.--Records good except those for periods of ice effect, whicn are poor.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

600 

505 

510 

595

650

690 

685 

550 

635

675

695 

595 

685

665 

550

655 

64O

630 

500 

600

591 

586 

578 

568 

568

568 

573 

757 

1,380 

1,430 

1,260

Nov.

1,150 

1,070 

996 

940 

894

863 

839 

821 

809 

827

821 

975

1,380 

1,550 

1,580

1,500 

1,380 

1,260 

1,200 

1,150

1,110

1,050 

1,100 

1,140 

1,250

1,710 

2,480 

3,680 

3,340 

2,920

Month

Octo 

Nove 

Dece

Ca

Janu 

Febl 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber . 

mber

Dec.

2,580 

2,360 

*2,210 

1,970 

1,760

1,760 

1,600 

1,600 

1,500 

1,400

1,300 

1,300 

1,300 

1,350 

1,350

1,400 

1,400 

1,300 

1,200 

1,050

1,150 

1,250 

1,300 

1,300 

1,300

1,280 

1,280 

1,370 

1,370 

1,290 

1,190

Jan.

1,070 

1,060 

900 

850 

950

1,050 

1,100 

1,100 

1,150 

1,150

1,100 

1,050 

1,000 

950 

850

800 

800 

850 

900 

1,000

1,100 

1,200 

1,300 

1,100 

1,000

900 

850 

800

700 

700 

650

Feb.

550 

700 

800 

*850 

900

900 

900 

900 

900 

900

850

800 

850 

850 

900

900 

900 

900 

900 

900

850 

850 

850 

900 

900

900 

900 

850

Second-- 

foot-days

lendar year 1949 ......

ember ........

21,780 

41,805 

45,770

1,148,080

. . ......... 1

.... ....... 3

5 

3

29,980 

24,150 

34,000 

04,700 

85,160 

98,200 

01,240 

70,730 

28,122

ter year 1943-50 .......... 1,685,637

Peak discharge

sec. -ft.; May 28 

sec. -ft.; July 1

base, 15.000 sec. -ft.). I

4 p.m.) 20,800 sec. -ft.; > 

3:30 p.m.) 22,900 sec. -ft

Mar.

sco

SCO 

9EO 

1.1CO 

1,2CO

1,300

1,2£0 

1,2CO 

1,2CO

1,1CO

1,OCO 

9EO 

1,OCO 

1,OCO 

1,OCO

1,OCO

l,oco

1,OCO 

1,1CO 

1.3CO

1,350 

1,310 

1,220 

1,2CO 

*1,180

1,150 

1,130 

1,090 

1,050 

1,040 

1,030

Maximum

1,430 

3,1580 

2,!>80

26,400

1,300 

900 

1,350 

7,120 

23,000 

29,000 

22,400 

3,750

29,000

Apr.

1,270 

1,580 

1,660 

1,560 

1,500

1,510 

1,570 

1,760

1,770 

1,720

1,700 

1,790 

2,180 

3,020 

3,830

4,070 

5,130 

5,420 

5,020 

5,010

6,040 

7,120 

6,600 

5,700 

5,180

4,720 

4,320 

4,050 

3,940 

3,760

May

3,840 

3,900 

3,810 

3,640 

3,570

3,540 

3,600 

3,830 

4,390 

5,220

6,970 

9,750

15,200 

19,600 

23,000

21,700 

20,500 

18 , 600 

15,400 

12,100

10,800 

14,200 

19,700 

18,000 

15,400

15 , 400 

18,100 

20,400 

19,400 

16,600 

14,900

June

15, 

14, 

14,

22!

26, 

21, 

IS, 

12, 

11,

11, 

19, 

24, 

23, 

22,

24, 

24, 

23, 

23, 

24,

27, 

29, 

25,

20, 

18,

15,

14, 

15, 

17,

20,

Minimum Mean

568 703 

809 1,394 

1,050 1,476

270 3,145

650 967 

650 862 

800 1,097 

1,270 3,490 

3,540 12,420 

11,000 19,940 

3,830 9,717 

1,300 2,282 

750 937

568 4,618

400 

600 

200 

400 

300

000 

800 

400 

900 

000

800 

400 

000 

600 

400

200 

900 

700 

200 

600

200 

000 

700 

600 

100

600 

400 

600 

900 

300

July

22, 

21, 

20, 

18, 

17,

16, 

15, 

14, 

12, 

12,

11, 

9, 

8, 

7, 

7,

7, 

7,

6, 

6,

6,

6,

5' 

5, 

4,

4, 

4, 

4, 

4, 

4, 

3,

Per 

square 

mile

0.429 

.850 

.900

1.92

.590 

.526 

.669 

2.13 

7.57 

12.2 

5.92 

1.39 

.571

2.82

400 

500 

000 

400 

600

500 

600 

200 

700 

200

200 

300 

210 

690 

440

600 

050 

400 

080 

440

210 

670 

420 

250 

890

600 

390 

210 

180 

080 

830

Aug.

3, 

3, 

3, 

2, 

3,

3,

"i,

2, 

2, 

2, 

2, 

2,

2, 

2,

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1,

1, 

1, 

1, 

1,

480 

220 

OlO 

920

020

100 

760 

400 

960 

840

640 

520 

410 

290 

170

100 

050 

950

780

700 

630 

700 

860 

740

610 

520 

450 

400 

340 

300

Sept

1,250 

1,200 

1,160 

1,130 

1,130

1,090 

1,060 

1,030 

1,010 

982

961 

940 

914 

894

901

947 

914 

882 

851 

827

803 

791 

773 

7 I 

750

845 

869 

845

821 

797

Runoff

Inches

0.49 

.95 

1.04

26.06

.68 

.55 

.77 

2.38 

8.73 

13.61 

6.82 

1 . 60 

.64

38.26

Acre feet

43,200 

32 , 920 

90,780

2,277,000

59,460 

47,900 

67,440 

207,700 

764,000 

1,187,000 

597,500 

140,300 

5b,780

3,344,000

tey 15 (5 p.m.) 23,600 sec. -ft.; May 23 (3 p.m.) 20,400 

Tune 5 (1 p.m.) 25,800 sec. -ft.; June 22 (5 p.m.) 29,400

Winter discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 9-25, Jan. 3 to Mar. 21 (no ga^e-helght 

record Feb. 3, 5, 6).
260 PEND OREILLE RIVER BASIN

Spotted Bear River near Hungry Horse, Mont.

Location.--Water-stage recorder, lat. 47°55'40", long. 113°31'10", near center of sec. 17, 

T. 25 N., R. 15 W., a third of a mile upstream from mouth and 40 miles southeast of 

Hungry Horse.

Drainage area.--180 square miles.

Records available.--October 1948 to September 1950.

Extremes. Maximum discharge during year, 3,860 second-feet June 6 (gage height, 6.42 

feet) ; minimum daily, 40 second-feet Jan. 30 to Feb. 1).

1948-50: Maximum discharge, that of June 6, 1950; minimum daily, 26 second-feet 

Feb. 5-7, 1949.

Flood of May-June 1948, reached a stage of 7.24 feet about May 22 (discharge, 4,010 

second-feet, by slope-area determination of peak flow).

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

those for June 1-26, which are poor. No regulation or diversion.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

Y 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

48 

48 

48

47 

47

48 

48 

47 

50 

52

52 

52 

52 

52 

52

52 

52 

51 

47 

48

47 

47 

46 

46 

48

48 

50

136 

95 

81

Nov.

*74 

70 

68

65 

F,5

63 

S3 

62 

63

63 

70 

96 

91 

88

88

81 

79 

78 

76

68 

73 

84 

90 

112

165 

255

336 

236 

193

Dec.

168 

158

146 

118 

115

110 

107 

100 

90 

80

75 

75 

75 

75 

80

80 

80 

75 

70 

70

70

75 

75 

SO 

70

70 

75 

80 

70

65 

60

Jan.

55 

50 

45 

45 

45

50 

55 

60

65 

70

65 

60 

60 

55 

55

55 

55 

55 

60 

65

70 

80 

85

70 

65

60 

55 

50 

45 

40 

40

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Uay 

June 

Julji 

Augvi 

Sept

Wa

mbe r . . . ..................

lendar year 1949 .........

sry

st ........................

ember .....................

ter year 1949-50 ..........

Feb.

40 

45 

50 

60 

70

75 

85 

85 

*80 

80

80

75 

75 

80 

80

80 

80 

80 

80 

80

80 

75 

75 

80 

80

80 

80 

75

Second 

foot-days

1,700 

3,077 

2,737

108,427

1,785 

2,085 

2,441 

8,742 

42,425 

68,310 

22 ,427 

4,965 

2,329

163,023

Mar.

 75 

75 

75 

80 

90

95

90 

80 

80 

75

75 

75 

70 

70 

70

70 

70 

75 

80 

85

90 

90 

90 

85 

80

80

75 

75 

»73 

74 

74

Maximum

136 

336 

168

2,850

85 

85 

95 

732 

2,660 

3,390 

1,890 

244 

97

3,390

Apr.

88 

103 

100 

95 

9£

105 

116 

124 

124 

122

122 

134 

181 

263

304

316 

430 

430 

405 

440

636 

732 

618 

505 

450

405 

365 

332 

304 

292

Uay

292 

288 

280

264 

260

252 

252 

280 

324 

435

768 

1,280 

1,940

2,410 

2,660

2,400 

2,330 

2,070 

1,610 

1,310

1,270 

1,970 

2,330 

1,890 

1,650

1,790 

2,150 

2,340 

2,030 

1,730 

1,570

Minimum

46 

62 

60

26

40 

40 

70 

88

252 

1,430 

262 

102 

64

40

June

1,690 

1,500 

1,750 

2,540 

3,350

3,390 

2,530 

1,970 

1,630 

1,480

1,860 

3,040 

3,000 

2,790 

2,790

2,780 

2,700 

2,540 

2,640 

2,810

2,870 

2,690 

2,220 

1,880

1,670

1,440 

1,430 

1,620 

1,780 

1,930

Mean

54.8 

103

88.3

297

57.6 

74.5 

78.7 

291 

1,369 

2,277 

723 

160 

77.6

447

July

1,890 

1,72O 

1,580 

1,480 

1,390

1,270 

1,160 

1,040 

938 

898

774 

670 

600 

565 

555

616 

515 

460 

452 

452

408

372 

352 

320 

300

290

276 

282 

262 

272 

268

Per 

square 

mile

0.304 

.572 

.491

1.65

.320 

.414 

.437 

1.62 

7.61 

12.6 

4.02 

.889 

.341

2.48

Aug.

244

227 

215 

213 

213

221 

207 

194 

184 

189

179 

174 

164 

157 

152

155 

150 

143 

139 

134

130 

125 

127 

141 

125

121 

116 

112 

108 

104 

102

Sept.

97 

95 

93 

91 

89

87 

85 

83 

82 

82

80

78

74 

82

82 

78 

74

72 

70

69

67 

66 

64 

64

69 

72 

72 

69

67

Runoff

Inches

0.35 

.64 

.57

22.39

.37 

.43 

.50 

1.81 

8.77 

14.06 

4.64 

1.02 

.48

33.64

Acre-feet

3,370 

6,100 

5,430

215,100

3,540 

4,140 

4,840 

17,340 

84,150 

135,500 

44,480 

9,850 

4,620

323,400

Peak discharge (base, 1,500 sec. -ft .) .--Hay 15 (12:30 a.m. 2,930 sec. -ft.; May 23 (2 a.m.) 2,550

aec'.-ft.j Hay 28 (1:30 a.m.) 2,490 sec.-ft.; June 6 (12:30 a.m.) 3,860 sec.-ft.; June 12 (11 p.m.) 

3,300 sec.-ft.; July 1 (1:30 a.m.) 2,090 sec.-ft.

* Winter discharge measurement made on this day.

Mote. Stage-discharge relation affected by ice Dec. 5, 6, Dec. 8 to Jan. 3, Feb. 9, Mar. 1. No

f age-height record Jan. 4 to Feb. 8, Feb. 10-28, Mar. 2-28 (stage-discharge relation affected by ice 

urlng most of period); discharge computed on basis of temperature records and records for South 

Pork Plathead River near Hungry Horse.
PEND OREILLE RIVER BASIN 261

Twin Creek near Hungry Horse, Mont.

Location.--Water-stage recorder, lat. 47°59'10", long. 113°33 I 30", in E^sec. 25, T. 26 

N., H. 16 W., a quarter of a mile upstream from mouth and 36 miles southeast of Hunsry 

Horse.

Drainage area.--47.6 square miles.

Records available. August 1948 to September 1950.

Extremes. Maximum discharge during year, 1,550 second-feet May 14 (gage height, 7.51 

reet) ; minimum, 11 second-feet Oct. 1-4, 8.

1948-50: Maximum discharge, that of May 14, 1950; minimum daily, 5 second-feet 

Jan. 11, Jan. 20 to Feb. C, Feb. 13, 14, 1949.

Flood of May-June 1948 reached a stage of 8.1 feet about May 22 (discharge, 2,410 

second-feet, by slope-area determination of peak flow).

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

wnich are poor. No regulation or diversion.

Discharge, in second-feet, water year October 1949 to September 1950

Day] Oct.

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

11

11

11

11

12

12

12

11

12

13

12

13

13

13

13

13

13

14

15

13

13

13

13

13

13

13

13

17

42

39

34

Nov.

29

26

24

23

21

21

20

20

20

19

19

22

40

40

45

41

36

34

34

34

32

31

36

40

74

105

163

184

134

108

-

Dec.

88

*81

72

66

62

60

51

47

44

41

39

36

34

32

30

29

28

28

27

26

25

25

26

26

24

24

24

24

24

24

24

Jan.

22

16

14

14

15

17

19

21

20

20

19

17

16

15

15

16

17

18

19

22

26

28

28

26

22

IB

15

15

15

15

15

Month

October ....................

Novembe r ...................

December . . ...................

Calendar year 1949 .........

January ..................... .

February ......................

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

April ....................... .

May ......................... .

June ........ .................

July ........ ... ........... .

August .......... .............

September .....................

Water year 1949-50 ..........

Feb

15

15

15

16

16

20

25

*26

25

25

22

21

21

21

21

23

27

25

25

25

25

25

25

26

26

27

37

*36

_

_

-

Second 

foot-days

471

1,475

1,191

35,395.5

575

656

1,327

4,625

17,155

19,493

4,722

1,050

476

52,216

Mar

33

;53

33

46

(56

81 '0

(52

55

47

45

43

41

40

:;g

38

42

44

41

40

39

;;e 'A!

:56

;;6

;;s

:>4

*34

:!3

:s4

:s4

Maximum

42

184

88

872

28

37

81

358

1,240

1,130

441

50

21

1,240

Apr.

50

66

63

56

55

56

64

67

66

64

67

82

121

176

190

194

298

247

216

249

358

352

264

213

204

182

166

152

141

146

-

May

liO

170

158

149

150

150

176

234

304

410

587

800

1,050

1,240

1,150

955

840

656

477

369

386

777

808

603

566

632

773

792

619

508

496

Minimum

11

19

24

5

14

15

33

50

149

335

56

22

13

11

June

545

469

590

828

1,130

916

596

434

339

335

508

884

792

712

719

781

708

701

712

726

712

676

557

461

446

400

412

456

471

477

-

Mean

15.2

49 2

38.4

97.0

18.5

23 4

42.8

154

553

616

152

33 9

is! 9

143

July Aug.

441

393

350

319

292

261

234

206

183

180

158

137

123

115

116

116

99

90

92

92

84

78

75

69

66

62

60

57

58

60

56

Per 

square 

mile

0.319

1.03

. 807

2.04

.389

.492

.899

3.24

11 . 6

12.9

3 . 19 [712

.334

3.00

50

46

45

45

46

44

43

40

40

40

38

38

36

34

32

31

30

29

28

27

27

26

28

32

29

27

26

25

23

23

22

Sept.

21

20

20

18

18

17

17

17

16

16

16

15

15

15

18

17

16

15

15

14

14

14

14

13

13

15

15

14

14

14

-

Runoff

Inches

0.37

1.15

.93

27.68

.45

.51

1.04

3.62

13.37

14 39

3 . 68

. 82

.37

40.70

Acre-feet

934

2,930

2,360

70,200

1,140

1,300

2,630

9,170

34,030

36,680

9,370

2, 080

944

103,600

Peak discharge (base, 480 sec.-ft.).--May 14 (10 p.m.) 1,550 sec.-ft.; May 22 (11 p.m.) 1,070 sec.- 

ft. ; May 27 (11:3° p.m.) 945 sec.-ft.; June 5 (9:;.0 p.m.) 1,350 sec.-ft.; June 12 (4 a.m.) 935 sec.- 

ft.| June 16 (1 a.m.) 852 sec.-ft.; June 29 (10:30 p.m.) 522 sec.-ft.

* Winter discharge measurement made on this day,

Note. Stage-discharge relation affected by Ice Dec. 4, 5, 8-17, Dec. 19 to Jan. 1, Jan. 3 to 

Feb. 9, Mar. 2, 11-13 (no gage-height record Jan. 24 to Feb. 7; discharge computed on basis of temperature records and records for Lower Twin Creeki.
^ b " PEND OREILLE RIVER BASIN

Lower Twin Creek near Hungry Horse, Mont.

Location.--Water-stage recorder, lat. 47°53'40", long. 113°33'20", in SE£ sec. 24, T 26 

it., K. Ib W., half a mile upstream from mouth and 35 miles southeast of Hungry Horse.

Drainage area.--22.2 square miles.

Records available. August 1948 to September 1950.

Extremes.-Maximum discharge during year, 565 second-feet June 5 (gage height, 3.86 fe°t)'

nS^'cn' 5 ,a, econd-feet Oct. 4, 8; minimum gage height, 1.15 feet Sept. 24, 29, 30 

18 to F°b 0 nw dlschar?e - tha t of June 5, 1950; minimum daily, 2 second-f°et Jan.

Flood of May-June 1948 reached a stage of'5.25 feet about May 22 (discharge, 

1,200 second-feet by slope-area determination of peak flow).

Remarks.--Records good except those for periods of ir-e effect or no °-aq;e- lv: l^nt r-eeorn , 

which are poor. No regulation or diversion.

Discharge, in second-feet, water year October 1943 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

9.8 

10 

9.8 

9.8

10

10 

10 

9.5

10

11

1111 11 11 11

11 11 11 

11 11

12 

12 

12 

12 

12

12 

12 

15

15 

16 

19

Nov

23 

23 

22 

21

21 

20 

20 

19 

18

18 

20 

25 

25 

24

23

23 

23 

23 

22

22

23 

24 

33

52 

89 

120 

93

78

Dec .

66 

»61 

53 

44 

43

39 

34 

33

32 

29

b27 

b26 

25 

25

24

23 

3 

3 

b 2 

b 1

D 0

0 

0 

0 

19

19 

19 

19 

18

18 

18

Jan.

18 

b!2 

bll 

b!2 

b!3

b!4 

blS 

17 

15 

15

14

b!2 

bll 

bll 

bll

b!2 

b!3 

14 

15 

b!7

b22

b25 

25 

b23 

blS

bll 

blO 

alO 

alO 

alO 

alO

Feb.

a 10 

alO 

alO 

310 

all

a!4 

a!5 

*15 

14 

14

14 

13 

13

13 

13

14 

15 

15

16

16

15

16 

16 

17 

17

18 

22 

*21

u» n t>, SecondMonth foot-days

Octc 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apra 

May 

June 

July 

Augu 

Sept

Wa

mber . . 

mber

lendar year 194E 

ary

h . . . - . . . . . . . .

-x

st .... . . ...... . . . . . . ...

ember . . ..... . ..........

358.9 

991 

883

,238.2

447 

407 

829 

,248 

,048 

,255 

,867 

942 

375

ter year 1949-5C .... ... . 29,fi50.9

Peak discharge (base, 300 sec. -ft. .--May

ft.; May E7 (10 p.m.) 469 sec. -ft.; June 5 

June 22 (4 a.m.) 490 sec. -ft.; June 30 (10 

* Winter discharge measurement made on th: 

a No gage-height record; discharge compute 

t Stage-discharge relation affected by Ice

Mar.

21 

21

27

36

43 

42 

41 

38 

b35

b32 

b30 

28 

27 

25

24

27 

26 

25 

24

24 

23

23 

22

22

21 

21 

21 

19 

20 

19

Maximum

19

120 

66

494

25 

22 

43 

164 

469 

525 

278 

51 

18

525

Apr

27 

31 

29 

28 

29

31 

33 

34 

34

33

35 

40 

50 

72 

84

96 

141 

133

117 

120

155 

164 

131 

110 

101

90 

84

76 

70 

70

Hay

79

82 

79 

78

76

74 

84 

105 

128 

173

240 

307 

388 

441 

469

428 

402 

322 

248 

190

200 

356 

398 

325 

310

340 

415

425

350 

275 

261

June

281 

253 

275 

379 

525

472 

327 

252 

200 

188

278 

507 

436 

396

375

420 

393 

393

417 

417

439 

430 

332

280 

260

242 

247 

267 

283 

291

Minimum Mean

9.5 11.6 

18 33.0 

18 28.5

2 60.9

10 14.4 

10 14.5 

19 26.7 

27 74.9 

74 260 

188 342 

57 125 

18 30.4 

10 12.5

9.5 81.2

July

278 

262 

247 

235 

218

195 

177 

158 

146 

152

139

116 

111 

110 

110

105 

92 

88 

91 

86

82 

79 

78 

71 

69

67 

65

61 

61 

61 

57

Per 

square 

mile

0.523 

1.49

1.28

2.74

.649

.653 

1.20 

3.37 

11.7 

15.4 

5.63 

1.37 

.563

3.6(3

15 (3 a.m.) 490 see. -ft.; May 23 (12 

10 p.m. 565 sec. -ft.; June 12 (6:30 

D.m.) 327 sec. -ft. 

s day. 

d on basis of temperature records.

Aug.

51 

50 

48 

48 

45

43 

39

37 

39 

37

34 

32 

30 

29

26 

26 

24 

24 

22

21 

22 

23

23

22 

21 

20 

19 

19 

18

Sept.

18

17 

16 

16 

16

15 

14 

14 

14 

13

13 

12 

12 

12 

13

12 

12 

11 

11 

11

11 

10 

10 

10 

10

11 11

10 

10 

10

Runoff

Inches

0.60 

1.66 

1.48

37.31

.75 

.68 

1.38 

3.76 

13.49 

17.18 

6.49 

1.58 

.63

49.68

Acre- feet

712 

1,970 

1,750

44,120

887 

807 

1,640 

4,460 

15,960 

20,340 

7,670 

1,870 

744

58,810

30 a .m. ) 445 sec . - 

a.m.) 543 sec. -ft.;
PEND OREILLE RIVER BASIN

Location.--Water-stage recorder, lat. 48°01 t 45", long. 113°42'10", in w| see. 12, T. 20 

W., K. 17 W., a quarter of a mile downstream from Quintonkon Creek, 3 miles upstream 

from mouth, and 30 miles southeast of Hungry Horse.

Drainage area. 72.7 square miles.

Records available.--September 1948 to September 1950.

Extremes.--Maximum discharge during year, 1,620 second-feet May 14 (gage height, 4.62 

feet) ; minimum, 21 second-feet Oct. 19 (gage height, 1.13 feet).

1948-50: Maximum discharge, 1,700 second-feet May 12, 1949 (gaa-e height, 4 73 

feet); minimum daily, 17 second-feet Feb. 14, 1949.

Flood of May-June 1948 reached a discharge of 2,280 second-feet about May 22, by 

slope-area determination of peak flow -it a point about 1,300 feet upstream.

Rating tables, water year 1949-50, except periods of Ice effect

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used Apr. 13 to May 12)

Oct. 1 to May 14 May 15 to Sept. 3O

1.1 

1.3 

1.5 

1.7

1.9 106

Z.I 155

2.3 213

2.5 

3.0 

3.7 

4.5

525

940

1,520

able above 2.5 feet.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

28

24

24

23

50

33

28

26

26

33

32

34

32

30

28

28

27

26

25

26

25

24

24

24

25

26

30

80

130

99

85

Nov.

75

69

64

60

55

52

49

48

46

46

45

68

142

142

142

123

108

101

97

93

87

82

95

101

150

194

339

375

288

241

-

Dec.

198

182

160

138

*130

120

97

80

70

60

50

45

50

50

50

50

50

50

50

45

45

50

55

60

60

60

65

75

88

78

73

Jan

70

49

40

35

35

35

40

50

50

50

45

40

40

3535'

35

35

35

35

35

45

60

65

60

55

50

45

40

40

35

35

Month

October .......................

November ......................

December ............. ........

Calendar year 1949 . . .... .

January .................. ...

February ........ .........

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

April ... .... ...............

Hay ...... .... ... ...........

June ........... . . ......... .

July ........................ .

August ................... ....

September .....................

Water year 1949-50 ...... ...

Feb.

35

35

35

35

35

35

40

40

*45

45

44

43

41

41

41

47

58

52

51

51

50

50

48

51

53

56

70

68

_

-

-

Secondfoot-days

1,135

3,577

2,434

69,814

1,354

1,295

2,884

6, 829

23,978

33,106

13,103

3 39 7

l|316

94,408

Mar

65

*65

63

80

163

166

152

135

118

111

105

100

95

90

84

72

102

135

108

97

88

84

78

74

72

69

67

64

62

61

59

Maximum

130

575

198

1,580

70

70

166

520

1,470

1,48C

1,110

170

60

1,480

Apr .

118

150

128

113

104

106

123

123

116

106

102

116

171

241

276

305

420

362

313

357

520

515

405

313

280

254

207

179

163

163

-

May

182

185

177

166

168

158

166

194

230

326

591

901

1,210

1,460

1,470

1,350

1,240

1,030

798

646

674

1,140

1,200

968

901

1,000

1,230

1,240

1,100

961

914

Minimum

o^

45

45

17

35

35

102

158

635

163

63

33

23

June

947

842

901

1,140

1,460

1,350

1,040

304

662

635

823

1,300

1,260

1,160

1,140

1,280

1,250

1,200

1,280

1,390

1,480

1,480

1,260

1,080

1,010

882

862

968

1,080

1,140

-

Mean

36.6

119

78.5

191

43.7

46 . 2

93 0

228

773

1,104

423

110

43.9

259

July

1,110

1,020

914

842

780

720

657

586

525

525

455

385

344

317

339

339

292

262

281

270

245

226

217

199

189

180

172

163

175

192

182

Per

square 

mile

0.503

1.64

1.08

2.63

. 601

.635

1 . 28

3 14

10.6

15 2

5 . 82

1.51

.604

3.56

Aug

170

158

152

156

156

158

147

138

134

132

123

117

111

109

103

100

94

91

85

84

81

77

105

105

87

81

76

71

63

65

63

Sept

60

58

56

55

52

51

50

49

47

45

45

43

42

41

46

46

42

40

39

37

36

35

34

33

34

51

43

38

35

33

-

Runoff

Inches Acre-foet

"

1.83 7 ',090

1.24 4,830

35.77 138,500

.69 2,690

.66 2,570

1.48 5,720

3.50 13,550

12.22 47,560

16.96 65,660

6.71 25,990

1.74 6,740

.67 2,610

48.28 187,300

700 sec.-ft.).--May 14 (10:30 .-ft.; May 22 (9 p.m.)

sec.-it.; May i.1 (B .) 1,340 sec.-ft.; June 5 (9 p.m.) 1,580 sec.-ft. ; June 21 (9:30 p.m.

1,590 sec.-ft.; June 30 (9 p.m.) 1,250 sec.-ft.

ment made on this: day.

Note. Stage-discharge ;lation affected b -28, Jan. 3 to Feb. 9, M^r. 1,

23S382 O - 53 - 18
264 FEND OREILLE RIVER BASIN

Graves Creek near Hungry Horse, Mont.

Location.--Water-stage recorder, lat. 48°07'50", long. 113°46'10", in Wj ae-.. 4, T. 27 

N., K. 17 W., 2 miles upstream from mouth and 22 miles southeast of Hungry Horse.

Drainage area.--33.0 square miles.

Records available.--August 1948 to September 1950.

Extremes.--Maximum discharge during year, 1,520 second-feet June 22 (gage height, 5.70 

reetT; minimuir daily, 20 second-feet Jan. 13-19, Jan. 27 to Feb. 7.

1948-50: Maximum discharge, that of June 22, 1950; minimum daily, 10 second-feet 

for several periods during January and Pebuary 1949.

Flood of May-June 1948 reached a stage of 5.33 feet about May 22 (discharge, 1,440 

second-feet by slope-area determination at peak flow).

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

which are poor. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

26

26

26

24

33

43

39

36

35

43

43

42

41

40

39

38

37

34

33

34

33

33

32

32

32

32

33

106

225

168

129

Nov.

106

91

80

72

65

61

56

55

53

54

S3

71

99

115

119

109

99

88ei

74

70

68

74

74

85

102

159

192

172

155

-

Dec.

136

120

108

94

*88

85

75

70

69

65

62

60

59

54

49

52

51

51

50

48

48

48

50

53

53

56

58

61

59

54

51

Jan.

50

48

40

30

25

25

30

30

30

30

25

25

20

20

20

20

20

20

20

25

35

40

40

35

30

25

20

20

20

20

20

Month

October ....................

November .....................

December ................... .

Calendar year 1949 . . ......

January ........... ...........

February ........... ... .....

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

April . .......................

May ... ............ ..........

June ................... ......

July ................... ...

August . . .....................

September .....................

Water year 1949-50 ..........

Feb.

20

20

20

20

20

20

20

25

25

*25

25

25

25

25

25

25

30

30

30

25

25

25

25

25

30

30

35

35

_

_

-

Secondfoot-days

1

2^752

2,037

47,213

858

710

1,680

2, 747

11,056

22,073

12,091

2, 514 

1,050

61,135

Mar.

35

35

*33

49

82

91

88

81

72

69

60

55

51

48

46

45

62

73

63

60

57

53

49

45

43

41

41

41

38

37

37

Maximum

225

192

136

1,000

50

35

31

165

686

1,480 

925

136 

52

1,480

Apr.

53

63

61

57

53

54

55

55

54

52

51

53

62

82

95

117

148

144

131

128

150

165

150

131

120

109

101

90

83

80

-

May

a82

a86

aS4

75

77

76

77

83

92

112

170

272

424

598

674

602

566

497

390

311

285

421

615

504

451

493

631

686

631

512

479

Minimum

24

53

48

10

20

20

33

51

75

146

52

25

20

June

504

461

465

594

830

870

623

461

372

338

402

862

884

769

712

826

821

773

852

977

1,140

1,480

1,120

773

678

586

574

669

773

884

-

Mean

50.5

91.7

65.7

129

27.7

25.4

54 2

91.6

357

736

81.1

35.0

167

July Aug.

925 136

848 126

777 119

721

699

686

631

554

493

512

472

378

335

321

316

298

265

241

258

293

270

243

220

200

188

174

165

153

152

155

148

Per 

square 

mile

1.53

2 78

1^99

 z n-1

 ^

. 839

.770

1.64

 2.78

10 . 8

22.3

11.8

2 .46

1.06

5.06

119

119

112

102

96

92

89

83

80

75

73

70

66

63

61

58

55

54

52

66

92

81

73

68

63

60

57

54

Sept.

52

50

48

45

43

42

41

41

38

37

35

34

33

32

33

34

32

31

29

28

27

27

26

25

26

37

37

32

28

27

-

Runoff

Inches Ac re- feet

1.76 3,110

3.10 5,460

2.29 4,040

53.11 93,630

.97 1,700

.80 1,410

3.' 10 B', 450

12.45 21,930

24.88 43,780

2^84 4^990

1.18 2,080

68.86 121,300

Peak discharge (base. 500 see.-ft.) . May 15 (4:50a.m.) 699 sec.-ft.; May 23 (5 to 8 a.m.) 648 sec.- 

ft.; May 26 (4 a.m.) 708 sec.-ft.; June 6 (2 to 3 a.m.) 963 sec.-ft.; June 12 (10 p.m.) to June 13 

(1 a.m.) 977 sec.-ft.; June 22 (7 a.m.) 1,520 sec.-ft.; July 1 (2:30 a.m.) 991 sec.-f';.

* Winter discharge measurement made on this day.

a.No gage-height record; discharge computed on basis of records for Sullivan Creek near Hungry 

Horse.

Note. Stage-discharge relation affected by Ice Dec. 11, 19, 20, Jan. 3 to Mar. 3, Mar, 11, 12 

(no gage-height record Jan. 5-20, Feb. 5-9; discharge computed on basis of temperature records and 

records for Sullivan Creek near Hungry Horse).
PEM) OREILLE RIVER BASIN

Stillwater River near Whitefish, Mont.

Location.--Water-stage recorder, lat. 48°L9', long. 114°23', in SWj sec. 34, T. 30 N., R. 

22 W., 600 feet downstream from highway bridge, 7 miles southwest of Wiitefish, and 10 

miles upstream from Whitefish Creek.

Drainage area.--529 square miles.

Records available.--November 1930 to September 1950 (discontinued).

Average discharge.--20 years, 340 second-feet.

Extremes. Maximum discharge during year, 2,700 second-feet Msy 19 (gage height, 15.56 

feet); minimum daily, 95 second-feet Jan. 28-31.

1930-50: Maximum discharge, 4,330 second-feet May 26, 1948 (gage height, 20.90 feet, 

from floodmark); minimum daily, 40 second-feet Dec. 24, 1944; minimum gage height, 0.59 

foot Sept. 15, 1944.

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

Rating table, water year 1S49-50, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

1.4 98 3.5 304 1O.O 1,380 

1.9 134 5.5 569 12.5 1,910 

2.5 190 7.5 867 15.5 2,660

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

106 

109 

108 

106 

106

108 

1,09 

a!09 

a!09 

allO

allO 

allO 

allO

alll 

111

111 

110 

110 

108 

106

107 

105 

105 

105 

104

104 

104 

107 

113 

122 

124

Nov.

132 

121 

121 

119 

118

lie

116 

116 

115 

116

118 

120 

128 

147 

150

149 

146 

144 

141 

136

132 

126 

126 

a!30 

a!30

alSO 

a!75 

a!97 

a!95 

a!93

Dec.

*191 

190 

190 

167 

177

171 

165 

160 

155

150

140 

135 

135 

140 

140

140 

140 

130 

115 

105

110 

130 

135 

135 

130

130 

135 

135 

135 

130 

125

Jan.

115 

105 

100 

105 

110

115 

ISO 

125 

125 

125

120 

115 

105 

105 

105

105 

105 

*112 

120 

125

130 

130 

135

125 

115

105 

100 

95 

95 

95 

95

Feb.

96 

*101 

105 

105 

110

115 

120 

120 

120 

120

120 

120 

120 

120 

125

125 

125 

125 

125 

125

125 

125 

125 

125 

125

125 

125 

125

Month SecondMonth foot-days

Goto 

Nove 

Deoe

Ca

Jan xi 

Febt 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 194S

 uary . . 

h

st .......................

ember . .

3,361 

4,119 

4,466

41,761

3,462 

3,344 

4,445 

15,636 

46,133 

50,630 

22,560 

8,743 

4,604

ter year 1949-50.. .. .... 173,965

Mar

120 

125 

125 

130 

135

140 

140 

135 

135 

130

130 

130 

135 

140 

145

150 

150 

150 

150 

150

150 

155 

155 

155 

155

155 

155 

155 

155 

155 

155

Maximum

124 

197 

191

2,650

135 

125 

155 

1,020 

2,660 

1,970 

1,400 

362 

195

2,660

Apr

160 

165 

160 

160

165

166 

164 

200 

210 

219

226 

250 

291 

346 

475

465 

534 

626 

690 

792

660 

936 

1,000 

1,020 

1,000

976 

936 

901 

864 

815

May

762 

766 

765 

758 

744

733 

741 

757 

779 

825

687 

964 

1,110 

1,290 

1,530

1,80O 

2,160 

2,500 

2,690 

2,650

2,510 

2,330 

2,160 

2,060 

2,020

2,000 

1,970 

1,950 

1,950 

1,960 

1,960

Minimum

104

115 

105

-

95 

96 

120 

160 

733 

1,460 

392 

202 

131

95

Peak discharge (base, 540 sec. -ft . ) .--Apr. 24 (1,020 sec.-fc.

June

1,970 

1,930 

1,660 

1,760 

1,720

1,690 

1,700 

1,730 

1,750 

1,740

1,700 

1,630 

1,580 

1,580 

1,620

1,660 

1,720 

1,750 

1,730 

1,700

1,650 

1,610 

1,590 

1,600 

1,640

1,660 

1,660 

1,620 

1,560 

1,460

Mean

109 

137 

145

386

112 

119 

143 

526 

1,553 

1,666 

726 

282 

160

477

; May 19

July

1,400 

1,320 

1,250

1,190 

1,120

1,060 

993 

929 

669 

623

762 

749 

720 

664 

649

626 

610 

595 

573 

559

545 

524 

506 

491 

468

449 

435 

426 

415 

406 

392

Per 

square

mile

0.206 

.259 

.274

.733

.212 

.225 

.270 

.996 

2.94 

3.19 

1.38 

.533 

.302

.902

6 p.m. )

Aug.

362 

376 

367 

353 

339

334 

328 

321 

316 

311

310 

304 

304 

306 

294

285 

276 

269 

261 

251

242 

234 

228 

224 

230

230 

224 

219 

213 

206 

202

Sept.

195 

al92 

a!89 

al86 

164

186 

164 

160 

175 

172

169 

166 

1-63 

161 

158

156 

155 

154 

151 

146

147 

144 

140 

136 

136

140 

136 

132 

132 

131

Runoff

Inches

0.24 

.29 

.32

9.97

. 24 

.23 

.31 

1.11 

3.39 

3.56 

1.59 

.61 

.34

12.23

Acre-feet

6,710 

6,170 

6,900

281,200

6,910 

6,630 

6,820 

31,410 

95,470 

100,400 

44, 750 

17,340 

9,530

345,000

2,700 sec. -ft.

Winter discharge measurement made on this, day.

a No gage-height record; discharge interpolated or computed on basis of recorded range in stage 

and records for Flathead River near Columbia Palls.

Note. Stage-discharge relation affected by Ice Dec. 7 to Apr. 4 (no gage-heigHt record Jan. 3-17, 

Jan". T9 to Feb. 1, Feb. 3 to Mar. 23; discharge computed on basis of 2 discharge measurements, temperature records, and records for Flathead River near Columbia Falls).
- bb PEND OREILLE RIVER BASIN

Whitefish Creek near Kalispell, Mont.

Location. Water-stage recorder, lat. 48°19', long. 114 0 16', in SWir sec. 34, T. 30 N., 

H. XL W., 8 miles north of Kalispell and 8 miles upstream from mouth. Datum of gage 

is 2,969.7 feet above sea level, datum of 1929 (Corps of Engineers bench mark).

Drainage area.--173 square miles.

Records available.--November to December 1906, July 1928 to September 1950 (discontinued).

Average discharge.--21 years (1929-50), 191 second-feet.

Extremes.--Maximum discharge during year, 1,260 second-feet June 26 (gage height, 4.45 

feet); minimum, 19 second-feet Oct. 27 (gage height, 1.03 feet, from recorded range 

in stage).

1906, 1928-50: Maximum discharge, 1,290 second-feet May 30, 1948; maximum gage 

height, 4.45 feet June 26, 1950; minimum discharge, 4.5 second-feet Oct. 18, 1934 

(gage height, 0.83 foot).

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

which are poor. Some regulation by Whitefish Lake. No diversion.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

87

80

72

65

59

56

54

52

48

46

46

43

41

41

39

36

34

32

30

27

25

24

23

22

21

20

19

52

52

52

54

Nov.

56

50

46

46

48

50

48

48

56

60

65

7O

75

75

75

70

65

65

65

65

65

65

65

70

70

75

80

80

80

80

-

Dec.

*83

83

83

83

83

82

81

80

80

80

80

80

80

80

80

80

80

80

80

80

81

83

84

84

82

82

84

85

85

85

83

Jan.

80

80

80

80

82

85

87

88

90

88

86

85

85

85

85

85

85

85

*b85

87

90

88

87

85

85

85

85

85

85

85

85

Month

October ... ................

November .... .................

December ... ..................

Calendar year 194Q . . . . ...

January ........... ......... . February . . ........... .......

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

April ... . .......... ....

May ...........................

June . . ................ . ...

July .... .......... . . .......

August ................. ......

September ......... ... ....

Water year 1949-50 ..........

Feb

85

85

85

*b86

87

87

87

88

88

88

90

90

90

90

90

90

90

90

90

90

90

90

90

90

90

90

90

90

_

_

-

Secondfoot-days

1 352

1, 928

2, 536

72,201

2 , 638

2,486

3,038

7,157

15,027

27,122

19,411

6,199

3,412

92,306

Mar

90

90

91

92

93

93

93

92

91

90

89

88

90

93

96

98

100

101

102

104

105

105

106

*107

109

109

107

107

105

102

100

Max imum

81

8(

85

977

90

90

109

394

1 25C

1 J 287 12C

132

1.25C

Apr

107

125

125

118

115

115

120

125

130

130

125

125

140

160

190

250

300

350

330

351

372

394

390

379

372

361

354

347

334

323

-

May_

323

330

317

313

310

310

313

310

307

317

351

390

450

493

525

545

585

598

593

581

569

569

585

589

589

593

614

640

661

674

683

Minimum

19

46

80

19

80

85

88

107

307

692

3O4

132

102

19

June

692

692

692

704

731

757

775

784

775

762

739

748

788

834

862

880

913

932

950

964

998

1,040

,090

,220

,250

,220

,110

,090

1,060

1,070

-

Mean

43.6

64.3

81.8

198

85.1

88.8

98.0

239

485

904

626

200

114

253

July

,100

,120

,100

,050

,000

970

920

870

830

780

740

70O

661

623

585

561

529

493

465

457

435

408

390

372

354

337

320

320

310

307

304

Per 

square 

mile

0.252

.372

.473

1.14

.492

.513

.566

1.38

2.80

5.23

3.62

1.16

.659

1.46

Aug.

287 '

2

2

=72

59

53

244

241 '

2

2

=38

35

26

223

217

2

2

2

12

09

06

200

200

]

'oo

L95

90

185

180

75

L70

L65

160

155

L50

45

L40

L35

132

Sept.

132

132

127

125

126

125

125

122

122

118

118

113

111

109

109

109

109

109

105

105

109

107

107

107

107

107

105

105

105

102

-

Runoff

Inches

0.29

.42

.55

15.53

.57

.53

.65

1.54

3.23

5.84

4.17

1.34

.74

19.87

Acre-feet

2,680

3,820

5,030

143,200

5,230

4,930

6,030

14..20O

29,810

53, 800

38,500

12,300

6,770

183,100
PEND QRKILLE RIVER BASIN ^' 

Ashley Creek near Kalispell, Mont.

Location.--Wire-weight gage and Cippolettl weir, lat. 48°10 I , long. 114 0 26' > in NW^ sec. 

29, T. 28 N., R. 22 W., 5 miles west of Kalispell.

Drainage area. 203 square miles.

Records available.--April 1931 to March 1933, April 1934 to September 1950 (discontinued).

Average discharge.--17 years (1931-32, 1935-50), 30.4 second-feet.

Extremes. Maximum discharge observed during year, 221 second-feet May 25 (gage height, 

5.64 feet); minimum observed, 0.5 second-feet Oct. 18 (gage height, 2.63 feet).

1931-50: Maximum discharge, 749 second-feet May 27, 1948 (gage height, 7.58 feet, 

from graph based on gage readings); no flow at times.

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

which are poor. Gage read twice daily, Some diversions. Storage in Ashley and Smith 

Lakes.

Rating table, water year 1949-50, except periods of ice effeo 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Jan. 16-29)

2.6 0.4 3.3 5.0 4.2 34 

2.7 .8 3.5 8.4 4.4 49 

3.0 2.3 3.7 12.9 4.6 7O 

3.1 2.9 3.8 15.7 5.0 120 

3.2 3.8 4.0 23 5.7 231

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.6 

2.7 

2.8 

2.4 

2.8

2.6 

2.0 

2.0 

3.5 

3.8

4.2 

3.7 

3.2 

2.8 

2.5

2.4 

1.8 

.5 

.9 

2.0

2.4 

2.9 

3.1 

3.6 

3.8

3.7 

3.8 

4.3 

5.6 

3.5 

3.9

Nov.

4.3 

4.4 

3.9 

*4.0 

4.3

4.3 

4.3 

4.8 

6.3 

8.6

9.4 

9.0

9.4 

9.4 

9.0

9.7 

9.7 

9.2 

8.8 

5.6

5.6 

8.8 

10 

10 

11

11 

16 

12 

11 

13

Dec.

13 

18 

5.6 

b5 

b8

*b8.6 

6.1 

5.8 

5.8 

5.6

4.6 

4.0 

3.4 

3.5 

3.7

3.9 

3.9 

3.9 

3.9 

3.7

3.4 

2.9 

2.7 

2.5 

2.4

2.2

2.0 

2.3 

3.5 

4.5 

6.0

Jan.

4.9 

3.8 

4.3 

2.8 

2.2

2.0 

2.0 

2.2 

2.4 

2.5

2.6 

2.7 

2.5 

2.4 

2.2

2.4 

2.2 

2.2 

2.2 

2.2

*2.4 

2.4 

2.3 

2.2 

2.3

2.2 

2.2

2.3 

2.4 

b2.4 

b2

Feb.

b2 

b2 

b2

b2

b2 

b2 

b2.5

b2

b2 

2.2 

2.2 

2.0 

2.0

.9 

.8 

.8 

.6 

.6

.6 

.8 

.9 

2.1 

2.3

2.5 

2.8 

3.1

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

ber.......... ...........................

lendar year 1949

ter year 1949-50 .......................

Mar.

3.5 

4.0 

5.0 

9.9 

11

9.4 

9.0 

8.8 

8.4 

12

10 

10 

12 

13 

13

13 

15 

15 

16 

13

14 

15 

16 

18 

21

29 

38 

41

44 

47 

47

Apr.

48 

52 

54 

56 

61

64 

67 

69 

75 

81

87 

94 

98 

102 

112

121 

130 

140 

151 

162

168 

171 

178 

179 

178

175 

168 

163 

162 

160

Secondfoot-days

91.8 

246.8 

154.4

15,459.7

77.8 

57.7 

541.0 

3,526 

5,667 

5,713 

2,668 

839 

243.4

19,825.9

Peak discharKe (base, 28 sec .-ft . }. May 25 (9:3O a.m

May

157 

157 

155 

154 

151

151 

148 

143 

144 

144

144 

144 

149 

157 

165

179 

195 

204 

212 

214

219 

219 

216 

217 

221

219 

219 

a218 

a218 

a217 

a217

Maximum

5.6 

16 

18

192

4.9 

3.1 

47 

179 

221 

216 

151 

49 

11

221

June

a216 

a216 

a215 

a215 

214

209 

206 

211 

209 

211

207 

204 

202 

200 

195

191 

191 

187 

184 

176

175 

173 

168 

165 

167

165 

165 

162 

159 

155

July

151 

144 

137 

130 

124

124 

117 

111 

104 

100

98

90 

87 

81 

77

76 

74 

70 

68 

67

64 

63 

62 

60 

58

57 

55 

57 

56 

54 

52

Aug.

49 

48 

47 

45 

45

43 

41 

38 

36 

34

31 

30 

28 

27 

26

24 

22

20 

20

19

18 

17 

18 

16 

15

15 

15

14 

13 

13 

12

Sept.

11 

10 

10

9.7 

10

9.9 

9.2 

8.4 

8.0 

8.4

7.5 

7.3 

7.3 

7.O 

7.1

7.0 

7.0 

6.6 

7.0 

7.0

7.0 

7.0 

7.0 

7.5 

8.2

9.7 

10 

7.7 

6.4 

7.5

Minimum Mean «f<£

0.5 2.96 182 

3.9 8.23 490 

20 4.98 306

.5 42.4 30,660

2.0 2.51 154 

1.6 2.06 114 

3.5 17.5 1,070 

48 118 6,990 

143 183 11,240 

155 190 11,330 

52 86,1 5,290 

12 27.1 1,660 

6.4 8.11 483

.5 54.3 39,310

, 6 p.m.) 221 sec. -ft.

Winter discharge measurement made on this day. 

a No gage-height recordj discharge interpolated, 

b Stage-discharge relation affected by ice.
FEND OREILLE RIVER BASIN

Swan River near Bigfork, Mont.

Location.--Water-stage recorder, lat. 48°01', long. 113°59', in NW£ sec. 14, T. 26 N., R. 

19 W., at outlet of Swan Lake, 7 miles southeast of Bigfork. Datum of gage is 3,062.6 

feet above mean sea level (river-profile survey).

Drainage area.--647 square miles.

Records available.--April 1922 to September 1950. October 1910 to May 1911 at site 2 

miles upstream from Swan Lake.

Average discharge.--24 years (1922-24, 1928-50), 1,024 second-feet.

Extremes.--Maximum discharge observed during year, 5,900 second-feet June 23 (gage height, 

b.Ol feet); minimum discharge recorded, 335 second-feet Jan. 20 (gage height, 2.19 

feet).

1922-50: Maximum discharge, 8.400 second-feet May 24, 1948 (gage height, 7.12 feet, 

from graph based on gage readings); minimum, 85 second-feet Jan. 26-29, 1930 (gage 

height, 0.04 foot).

Remarks.--Records good. No diversion above station. Natural storage in Swan Lake.

Rating tables, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Nov. 13-28)

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

2.2 375 2.2 340 3.0 990 4.5 2,980 

2.4 505 2.4 470 3.5 1,550 5.O 3,860 

2.6 660 2.7 700 4.0 2,220 6.1 6,O90

Discharge, in second-feet, water year October 1949 to September 195C

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

399 

375 

375 

387 

399

411 

411 

411 

411 

435

423 

423 

423 

423 

423

399 

387 

387 

375 

375

375 

375 

375 

375 

375

387 

387 

399 

435 

449 

449

Nov.

435 

435 

423 

423 

423

417 

417 

423 

423 

429

435 

463 

505 

596 

628

628 

604 

588 

565 

550

528 

515 

508 

515 

522

538 

582 

628 

652 

676

Dec.

684 

668 

652 

644 

605

598 

582 

545 

538 

530

492 

456 

449 

456 

449

442 

456 

449 

442

442

428 

421 

421 

449 

456

449 

449 

449 

456 

449 

449

Jan.

435 

428 

414 

376 

358

352 

358 

376 

376 

364

364 

364 

352 

352 

364

352 

352 

346 

352 

376

400 

421 

470 

492 

508

500 

492 

492 

492

478 

449

Feb.

428

421 

421 

421 

421

400 

400 

400 

400 

400

400 

400 

400 

400 

388

376 

364 

364 

364 

364

364 

364 

376 

388 

414

428 

442

442

Month SecondMonth foot-days

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1949 

ary

3

ember .....................

12,433

15,474 

15,455

34,866

12,605 

11,150 

19,197 

48,157 

76,880 

23,170 

32,610 

37,990 

18,027

ter year 1949-50 .......... 493, 148

Mar.

485 

456 

442 

456 

485

560 

620 

636 

605 

575

560 

560 

560 

560 

545

545 

560 

636

718 

718

718 

718 

763 

754 

736

727 

736 

727 

700 

676 

660

Maximum

449 

676 

684

5,070

508 

442 

763 

2,640 

3,750 

5,900 

5,150 

1,760 

772

5,900

Apr.

668 

718 

781 

810 

820

830 

850 

910 

970

1,000

1,030 

1,060 

1,130 

1,360 

1,630

1,840 

2,030 

2,3OO 

2,420 

2,400

2,380 

2,520 

2,640 

2,600 

2,460

2,280 

2,130 

1,970 

1,860 

1,760

May

1,650 

1,570 

1,540 

1,490 

1,470

1,440 

1,430 

1,410 

1,390 

1,410

1,470 

1,610 

1,880 

2,300 

2,820

3,310 

3,630 

3,750 

3,690 

3,420

3,060 

2,820 

2,780 

2,980 

3,080

3,040 

3,030 

3,140 

3,360 

3,490 

3,420

Minimum

375 

417 

421

278

346 

364 

442 

668 

1,390 

2,930 

1,810 

790 

530

346

Peak discharge (base, 3,300 sec. -ft.). May 18 (l to 2 p.m.)

June

3,280 

3,140 

3,090 

2,980 

3,090

3,440 

3,880 

3,990 

3,820 

3,380

3,090 

2,930 

3,220 

3,620 

3,990

3,990 

4,390

4,790 

4,790 

5,110

5,360 

5,690 

5,900 

5,650 

5,190

4,870 

4,550 

4,110 

3,880 

3,960

Mean

401 

516 

499

917

407 

398 

619 

1,605 

2,480 

4,106 

3,310 

1,225 

601

1,351

3,780 sec.

July

4, 

4, 

4, 

5, 

5,

4, 

4, 

4, 

4, 

4,

4, 

3, 

3, 

3, 

3,

3, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

1, 

1, 

1,

Per 

square 

mile

0.62 

.80 

.77

1.42

.63 

.62 

.96 

2.48 

3.83 

6.35 

5.12 

1.89 

.93

2.09

150 

590 

990 

150 

030

950 

790 

510 

350 

190

110 

960 

620 

260

160

000 

930 

780 

620 

620

480 

420 

420 

320 

240

180 

120 

030 

940 

890 

810

Aug.

,760 

,630 

,590 

,510 

,470

,510 

,540 

,590

,510 

,470

,440 

,390 

,380 

,330 

,270

,220 

,180 

,110 

,090 

,050

,030 

,010 

970 

930

910

910 

910 

870 

810 

810 

790

Sept.

772 

736 

718 

700 

668

652 

636 

636 

620 

636

636 

620 

605 

590 

590

575 

560 

560 

560 

545

545 

530 

530 

530 

530

530 

545 

560 

560 

552

Runoff

Inches

0.72 

.89 

.89

19.26

.73 

.65 

1.11 

2.77 

4.42 

7.08 

5.90 

2.18 

1.04

28.38

-ft.; June 8 (3

Ac re- feet

24,660 

30,690 

30,650

664,200

25,000 

22,120 

38,080 

95,520 

152,500 

244,300 

203,500 

75,350 

35,760

978,100

to 5 a.m.)

4,010 sec.-ft.j June 23, 5,900 sec.-ft.; July 4, 5,150 sec.-ft.

Note. Discharge computed from staff-gage readings Oct. 1 to Nov. 5 Jan. 8-14, Feb. 6 to Mar. 22, 

June~Tl to Sept. 28.
FEND OREILLE RIVER BASIN 269

Priest Lake at outlet, near Coolin, Idaho

Location. Mater-stage recorder, lat. 48°29'30", long. 116°53'00", in SE^ sec. 5, T. 59 

N., R. 4 W., half a mile east of outlet and if miles northwest of Coolin. Datum of 

gage is 2,434.64 feet datum of 1929, supplementary adjustment of 194V, or 2,437.99 

feet (Geological Survey datum) above mean sea level.

Drainage area.--572 square miles.

Records available.--April 1928 to September 1950. June 1911 to September 1913 (f'ragmentary gage-height records at Coolin), published as part of records for Priest River at 

outlet of Priest Lake, at Coolin.

Extremes. Maximum gage height during year, 4.64 feet June 23; minimum, -0.07 foot Oct.

1928-50: Maximum gage height, 6.46 feet May 29, 30, 1948; minimum observed, -0.16 

foot Nov. 23-25, Dec. 4-6, 1936.

Remarks. Flow from Priest Lake is regulated to hold lake at heights desirable for recreation interests during summer months and storage is released for power use downstream 

during winter months. Storage began Aug. 9, 1950. Prior to Aug. 9, 1950, some regulation resulted from logging operations in the outlet channel.

Qage height, In feet, vater year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

-0.07

-.07

-.07

-.07

.01

.04

.04

.04

.05

.04

.04

.04

.04

.04

.04

.04

.04

.04

.02

.01

.00

.00

.00

.00

.00

.01

.01

.05

.08

.10

.11

Nov.

0.13

.13

.13

.13

.13

.13

.13

.13

.15

.19

.21

.26

.32

.39

.43

.45

.47

.49

.51

.52

.53

.54

.57

.53

.62

.68

.89

1.08

1.17

1.21

Dec.

1.24

1.24

1.24

1.23

1.21

1.19

1.17

1.13

1.10

1.08

1.04

1.00

.96

.93

.91

.92

.91

.91

.90

.85

.82

.79

.78

.80

.78

.76

.74

.72

.70

.68

- .67

Jan.

0.66

.65

.62

.57

.55

.56

.60

.62

.61

.62

.60

.59

.59

.56

.52

.49

.48

.46

.44

.49

.47

.46

.45

.44

.40

.38

.35

.34

.30

.28

.28

Feb.

0.28

.28

.29

.29

.29

-

-

-

.29

.27

.27

.26

.26

.26

.26

.30

.30

.30

.29

.28

.27

.28

.29

.31

.32

.32

.32

.31

_

_

-

Mar.

0.29

.29

.29

.30

.35

.41

.43

.44

.44

.45

.44

.42

.41

.41

.41

.44

.50

.55

.57

.57

.57

.58

.58

.59

.59

.59

.59

.59

.58

.57

.57

Apr.

0.60

.61

.63

.64

.64

.65

.66

.68

.70

.71

.72

.74

.81

.87

.94

1.00

1.09

1.15

1.20

1.25

1.34

1.40

1.49

1.53

1.58

1.62

1.67

1.70

1.71

1.74

-

Hay

1.78

1.83

1.87

1.89

1.91

1.98

2.01

2.02

2.05

2.11

2.22

2.39

2.65

2.95

3.26

3.54

3.74

3..91

3.99

3.98

3.95

3.96

4.03

4.03

4.06

4.10

4.13

4.22

4.27

4.29

4.25

June

4.. 25

4.24

4.24

4.26

4.31

4.36

4.38

4.31

4.22

4.12

4.05

4.06

4.12

4.18

4.23

4.28

4.33

4.36

4.40

4.44

4.52

4.60

4.62

4.57

4.52

4.40

4.29

4.19

4.09

4.02

-

July

3.94

3. £4

3.73

3.63

3. £2

3.41

3.29

3.16

3.C8

2.?7

2.86

2.75

2.62

2.52

2.40

2.30

2.21

2.12

2.09

2.09

2.02

1.95

1.87

1.79

1.72

Aug.

1.37

1.31

1.24

1.20

1.14

1.09

1.07

1.02

.99

.96

.99

1.01

1.02

1.02

1.05

1.10

1.11

1.13

1.15

1.15

1.16

1.17

1.25

1.31

1.35

1.66 1 1.35

1.58

1.53

1.51

1.47

1.43

1.38

1.38

1.38

1.37

1.38

Sept.

1.38

1.38

1.37

1.37

1.37

1.36

1.36

1.36

1.36

1.36

1.34

1.33

1.32

1.31

1.30

1.30

1.29

1.29

1.28

1.28

1.28

1.27

1.27

1.27

1.26

1.28

1.31

1.31

1.32

1.31

-

Note. Page heights Oct. 1, Jan. 24 to Feb. 5, May 17 to June 4, Aug. 24-27. Computed on basis 

f gage-height record for Priest River at outlet of Priest Lake, near Coolin.
FEND OREILLE RIVER BASIN

Priest River near Coolin, Idaho

Location.--Water-stage recorder, lat. 48°26'50", long. 116°53i50", in SE^ sec. 19, T. 59 

K., K. 4 W., 190 feet below Dickensheet Bridge, 2} miles below Binarch Creek, 3 miles 

southwest of Coolin, and 5 miles below outlet of Priest Lake. Datum of gage is 2,338.24 

feet above mean sea level, datum of 1929, supplementary adjustment of 1947.

Drainage area.--611 square miles.

Records available.--October 1948 to September 1950.

Extremes.--Maximum discharge during year, 5,680 second-feet June 22 (gage height, 6.87 

feet); minimum, 126 second-feet Aug. 19 (gage height, 1.88 feet).

1948-50: Maximum discharge, G,840 second-feet May 16, 1949 (gage height, 7.48 feet); 

minimum, that of Aug. 19, 1950.

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

are fair. No diversion above station. Plow partly regulated by Priest Lake (see

preceding page).

Ratl.ng table, water year 1949-50, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

130

150

200

260

385

3.0 

3.3 

3.6 

4.0 

4.5

530

720

960

1,350

1,920

2,590

3,790

5,740

Discharge, in second-feet, water year October 1949 to September 1950

Day! Oct

1 | 221

2

3

4

5

6

7

8

Q

10

11

12

13

14

15

16

17

18

19

20

221

218

230

268

280

280

276

276

280

272

268

272

268

264

264

264

264

251

248

21 245

22 242

23 I 242

24

25

26

27

28

29

30

31

242

242

239

239

264

288

f284

f288

Nov.

f288

296

300

300

300

300

300

304

316

336

349

380

4O3

416

421

403

385

385

390

390

390

394

403

412

398

408

500

818

1,160

1,210

-

Dec

1,240

1,250

1,260

1,240

1,220

1,200

1,170

1,140

1,120

1,090

1,060

1,030

1,000

978

969

978

969

969

942

906

*888

879

870

879

870

854

838

838

822

798

790

Jan

783

769

748

720

706

713

741

748

741

748

734

727

692

b620

b600

b590

b580

b570

566

560

590

632

626

626

b580

b570

b560

b550

b540

536

536

Month

October . . . . ..... ..... .

November . . ... ..... .........

December ..... ..... ....... .

Calendar year 1949 .........

January ...... . . ..... .... .

February ........ .............

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

April .... . ...... ....... .

May .......... ..............

June ............ ......... ...

July ................ .........

August ..... ......... ......

September ....... .............

Water year 1949-50 ... ......

Feb.

536

536

542

542

542

a550

a550

536

*536

530

525

520

525

525

530

542

554

548

542

536

536

536

542

554

566

560

554

548

_

-

Secondfoot-days

8,000

13,055

31,057

425,272

20,002

15,143

20, 827

36, 757

112,860

153,670

80,350

14,242

5,900

511,863

Mar

542

542

548

554

590

626

638

638

644

650

632

632

626

626

620

632

685

720

727

734

734

741

748

755

755

755

755

755

748

741

734

Maximum

288

1,210

1 , 26C

6,770

783

566

755

1,860

5,160

5,570

4,510

1,260

230

5,570

Apr.

769

790

798

806

806

822

838

846

862

870

888

924

978

1.04O

1,110

1,160

1,240

1,300

1,350

1,400

1,490

1,570

1,640

1,670

1,720

1,750

1,800

1,820

1,840

1,860

-

May

1,900

1,920

1,970

2,000

2,060

2,130

2,150

2,180

2,210

2,280

2,420

2,660

3,000

3,410

3,770

4,140

4,410

4,620

4,750

4,730

4,690

4,710

4,800

4,800

4,840

4,890

4,950

5,070

5,130

5,160

5,110

Minimum

218

288

790

536

520

542

769

1,900

4,640

1,300

146

146

146

June

5,110

5,090

5,090

5,130

5,200

5,270

5,320

5,230

5,070

4,860

4,770

4,770

4,860

4,950

5,000

5,070

5,160

5,250

5,290

5,340

5,400

5,570

5,570

5,460

5,360

5,220

5,020

4,870

4,730

4,640

-

Mean

258

435

1,002

1 , 165

645

541

672

1 225

3 '&41

5 122

2^592

459

197

1,402

July

4,510

4,380

4,220

4,070

3,930

3,770

3,610

3,460

3,320

3,170

3,020

2,870

2,730

2,590

2,450

2,320

2,210

2,080

2,040

2,020

1,970

1,910

1,810

1,730

1,660

1,580

1,470

1,420

1,380

1,350

1,300

Per

square 

mile

0.422

.712

1.64

1.91

1.06

. 885

1.10

2.00

5.96

8* 38

4.24

.751

.322

2.29

Aug.

1,260

1,

1,

1,

210

L40

L10

1,040

969

342

397

362

532

192

L68

46

L50

182

168

L68

L72

L68

200

206

203

>30

242

251

251

257

248

227

227

224

R

Inches

0.49

.79

1.89

25.88

1.22

 92

1.27

2.24

6.87

9 35

4^89

* 87

.36

31.16

Sept.

227

227

230

227

230

227

224

227

224

224

221

218

215

215

212

206

195

195

200

198

198

170

146

146

146

146

152

152

152

150

-

moff

Acre-feet

15,870

25,890

61,600

843,600

39,670

30,040

41,310

72 910

223*900

304,800

159 400

28^250

11,700

1,015,000

Peak discharge (base, 3,500 sec.-ft.). June 22 (7 p.m.) 5,680 sec.-ft. 

''"winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for station 

near Priest River and nearby stream.

b -Stage-dishearge relation affected by ice.

f Computed from partly estimated gage-height record.
FEND OREILLE RIVER B^SIH

Priest River near Priest River, Idaho

Location. --Water-stage recorder, lat . 48°13', long. 11G 0 55', in NE^SElj sec, 11, T. 56 N.,

 R. b W 500 feet downstream from Saddler Creek, a quarter of a mile downstream from 

Lower West Branch, 2^ miles north of Priest River, and 3| miles upstream from mouth. 

Altitude of gage is 5,090 feet (from river-profile map). 

Drainage area.--902 square miles.

Records available. --October 1930 to September 1950. June 1903 to April 1?05, November 

' 'l91U to April 1911. May to December 1923, February 1329 to September 1930 at site

3 miles downstream.

Average discharge. --20 years (1930-50), 1,560 second-feet. _ 

Extremes. --Maximum discharge during year, 6,740 second-feet June 2L (gage height, b.7i

 TeTTT; minimum, 274 second-feet Sept. :4 (gage height, 0.76 foot).

1903-15, 1910-11, 1923, 1929-50: Maximum discharge, 10,500 second-feet Ma'y ^9, 30,

19481 maximum gage height, 8.97 feet May 29, 1948; minimum discharge recorded, 184

second-feet Jan. 7, 1937 (gage height, 0.54 foot). 

Remarks. --Records excellent except those for periods of ice effect, which are poor. No

 diversion above station. Some regulation on tributary and by logs dumped into outlet 

of Priest Lake. Low buttress and stop-log dam on Priest River three-quarters of a 

mile downstream from lake outlet, completed by Washington Water Power Co. and storage 

started Aug. 9, 1950.

Rating tables, water year 1949-50, except 

(gage height, In feet, and discharge,

periods of Ice effect 

In second-feet)

1 to Feb. 12

344

393

615

940

1,490

Feb. 13 to Sept. 30

1.1 

1.5 

2.0

2.8 1,740

4.0 2,950

5.2 4,480

6.7 6,720

Discharge, in second-feet water year October 1349 to September 19bO

Day

1

2

3

4

c

6

7

8

Oct.

359

359

354

378

580

568

494

456

9 ' 445

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

461

450

435

429

*424

419

414

409

409

403

393

393

388

388

388

383

383

388

440

488

472

450

Nov

450

445

445

440

440

440

440

445

450

499

556

695

752

733

725

676

609

580

574

568

562

562

591

609

£15

652

982

1,100

1,390

1,4-50

Dec.

1,470

1,480

1,450

1,440

1,420

1,40O

1,360

1,320

1,310

1,250

1,220

1,200

1,180

1,140

1,140

1,150

1,140

1,140

1,110

1,070

1,050

1,040

Jan | Feb.

982

982

950

950

900

920

940

950

950

950

940

900

860

750 Vl'O

650

670

680

700

760

800

850

870

*380

870

880

900

938

952

980

7001 994

700 | 1,040

700

700

710

750

820

1,0501 850

1,060 850

1,040

1,030

1,040

1,090

1,070

1,040

1,020

750

720

700

680

650

650

650

Month

October . . . .......... ...

November . . ..............

December . .... ...... ...

Calendar year 1949 . . .... .

January .... ........ . .... .

February ....... ...... ......

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

April .. ...... .... .

May ... . . . ..... ... ....

June .................... ... .

July ........ ... . .... ......

August ...... ... . . . ...

September . . .... ... ...

Water year 1949-50 . . . .....

1,020

987

966

938

924

917

924

938

938

938

931

_

_

-

Secondfoot-days

13,200 

19,476

36 , 920

595,043

25,214

24,835

45,295

153*230

182, 020

93,540

21, 008 

10,061

701,779

Mar. Apr. May

917

917

931

1,100

1,310

L,480

L,450

1,390

L,310

1,230

1,170

L,1GO

"1,110

1,080

*1,070

L,150

1,860

2,160

2,280

2,100

2,020

2,030

2,040

2,020

2,030

1,940

1,920

1,980

2 , 080

2,410

2,600

2,750

2,800

2,930

2,270 2,970

2,Z30

2,070

1,920

L.880

1,810

1,730

1,660

L,620

L.580

L.510

L,460

L,460

L.460

Maximum

580

1,450 

1,480

8,560

982

1,040

2,270

3,140

6,380

6, 72C

5,210

1,520 

375

6,720

2,940

2,960

3,060

3,140

3,140

3,030

2,990

2,950

2,980

2,930

2,900

2,900

-

2,960

3,070

3,100

3,080

3,140

3,300

3,240

3,230

3,280

3,400

3,700

4,160

4,730

5,360

5,830

S.100

6,290

6,380

6,340

6,160

5,980

5,920

6,000

6,000

5,950

5,900

5,980

6,140

6,210

6,190

6,110

Minimum

354

440

1,020

344

650

650

917

1,920

2,960

5,350

1,590 

322

274

274

June

6,050

6,030

6,000

6,050

6,160

6,220

6,290

6,180

5,980

5,770

5,600

5,650

5,800

5,900

5,950

6,000

6,130

6,220

6,290

6,320

6,510

6,720

6,640

6,500

6,450

6,180

5,900

5,680

5,500

5,350

-

Mean

426

649

1,191

1,630

813

887

1,461

2, 566

4,943

5,067

3,017

678 

335

1,923

July 1 Aug

5,210

5,050

4,870

4,680

,520

,4

,4

,3

70

00

50

4,490 ,310

4,310 ,230

4,120 ,2

3,920 ,]

3, 800 , 1

00

60

10

3,670 ,070

3,470

3,300

3,120

2,970

2,840

2,740

2,620

2,450

2,390

2,410

2,330

2,250

2,160

2,060

1,980

1.9CO

1,730

1,700

1,690

1,660

1,590

Per

square 

mile

0.472

.720

-1 -Z?

1.81

.001

983

1 . 62

2.84

5.48

6.73

3 34

752 [371

2.13

520

;

;

^

75

40

22

326

355

;

;~

30

40

35

340

360

2

-

t

60

58

194

452

446

t

t

4"

1,34

1,29

07

85

380

Sept

375

370

375

370

370

365

360

365

360

355

355

350

345

345

340

355

335

322

322

330

326

326

294

274

282

299

308

304

294

290

-

Runoff

Inches

0.54

l!52

24.52

1.04

1.02

1 . 87

3.17

6 . 32

7.50

3.86

.41

28.92

Ac re- feet

26,180

38, 630

73,230

1,180,000

50,010

49,260

89, 840

303*900

361,000

185,500

41,670 

19,960

1,392,000

Peak discharge (base, 4.540 aec.-ft.). June 22 (7 a.m.) 6,740 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 21, Jan. 3 to Feb. 12 (no gage-height record 

Jan. 16 to Feb. 1; discharge computed on basis of weather records and records for station near Coolin 

and nearby streams).
KETTLE RIVER BASIN

Kettle River near Ferry, Wash. 

(International gaging station)

Location. --Water-stage recorder, lat. 48°58'40", long. 118°46'10", in lot 7, sec. 10, T. 

4U jsi . , R. 32 E., If miles south of international boundary and Ferry, and 3 miles upstream from Toroda Creek. Datum of gage is 1,840.00 feet above mean sea level (subject to correction for datum of 1929).

Drainage area. --8, 820 square miles.

Records available .--August 1928 to September 1950.

Average discharge .--'22 years, 1,388 second-feet.

Extremes. Maximum discharge during year, 12,000 second-feet June 15 (gage height, 17.59 

t'eet ) ; minimum, 115 second-feet Mar. 1, 12, Sept. 24 (gage height, 9.48 feet).

1928-50: Maximum discharge, 21,200 second-feet May 29, 1948 (gage height, 21.15 

feet); minimum, 14 second-feet (discharge measurement) Jan. 23, 1930, but may have 

been less during period of ice effect Jan. 18-23, 1930.

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

small diversions above station for irrigation.

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

United States under agreement with Canada.

Rating table, water year 1949-50, except period of ice effect 

(gage height, in feet, and discharge, in second- feet)

9.5 120 11.0 880 13.5 3,610 

9.7 180 11.5 l,30n 14.0 4,360 

10.0 238 12.0 1,790 15.0 6,200 

10.3 426 12.5 2,330 16.0 8,360 

10.6 594 13.0 2,940 17.5 11,800

Discharge, in second- feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7

a

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

193

187 

183 

187 

213

213 

220 

224 

217

213

210 

220 

220 

224 

224

217 

217 

213

206 

190

183 

180 

187 

190 

190

193 

203 

213 

220 

235 

265

Nov.

261 

242 

242 

242 

238

238 

242 

242 

253 

261

257 

257 

253 

272

276

230 

284 

276 

261 

257

245 

213 

206 

257 

272

276 

292

372

534 

*484

Dec.

442 

426

411 

387 

340

322 

288

206 

193 

171

146 

143 

177 

200 

231

265 

288 

297

231 

171

160 

150 

150 

150 

150

150 

160 

170 

180 

170 

160

Jan.

160 

160 

160 

160 

160

160 

150 

150 

150 

150

150 

150 

150 

150 

150

150 

150 

150 

150 

*155

160 

170 

170 

160 

150

150 

150 

150 

150 

150 

150

Feb.

150 

150 

150 

150 

150

160 

160 

170 

170 

170

170 

170 

170 

170 

180

206 

196 

200 

213 

*210

193

187 

183

180 

190

220 

217 

190

Month

Octo 

Hove 

Deoe

Ca

janu 

Febr 

Marc 

Aprl

MOV

June 

July 

Augu 

Sept

Wa

lendar year 194S

St................. .....................

ter year 1949-50 .......................

Mar.

174 

187 

210 

217 

227

249 

249 

245 

238 

235

217 

130 

193 

193 

190

187 

213 

235 

224 

224

224 

227 

238 

235 

224

235 

242 

242 

227 

224 

224

Apr.

1,

l', 

I,

Secondfoot-days

6,450 

8,285

7,085

483,391

4,775 

5,025 

6,829 

24,059 

163,400 

233,810 

46,252 

11,714 

4,778

522,452

227 

245 

249 

245 

249

272

310 

305 

305 

314

322 

368

594 

816 

880

952

960 

944 

952

060

390 

540 

490 

340 

300

260 

260 

260 

260

390

May

1,640 

1,840 

2,060 

2,220 

2,280

2,280 

2,220 

2,330 

2,630 

3,330

4,360 

5,600 

7,040 

7,920 

8,360

8,140 

7,920 

7,480 

6,200 

5,600

5,410 

6,200 

6,410 

5,800 

5,600

6,410 

7,480 

7,920 

7,480 

6,830 

6,410

Maximum

265 

534

442

14,200

170 

220 

249 

1,540 

8,360 

11,800 

3,750 

647 

257

11,800

June

6,410 

6,620 

7,040 

8,360 

9,500

9,500 

8,360 

7 , 040 

6,410 

6,620

7,260 

8,580 

9,960 

11,100 

1-1 , 800

11,300 

11,100 

10,900 

10,200 

9,270

9,270 

8,580 

6,830 

5,410 

5,040

4,690 

4,360 

4,20O

4,050 

4,050

July

3,750 

3,330

3,000 

2,750 

2,630

2,510 

2,220

2,000 

1,840 

1,840

1,740 

1,590 

1,490 

1,300 

1,210

1,130 

1,090 

1,020 

960 

936

920 

832 

772 

730 

688

653

634 

620 

607 

723 

737

Aug.

647 

582 

534 

484 

468

447 

431 

411 

397 

377

368 

359 

340 

327 

322

322 

354 

363 

327 

301

280 

265 

245 

276 

411

436 

397 

340 

322 

305 

276

Minimum He«n

180 

206 

143

208 

276 

229

143 1,324

150 154 

150 179 

174 220 

227 802 

1,640 5,271 

4,050 7,794 

607 1,492 

245 378 

117 159

117 1,431

Sept.

257 

242 

227

213 

203

190 

183 

177 

171 

168

164 

152 

146 

140 

137

134 

132 

132 

132 

129

123

120 

117 

117 

120

123 

129

143 

177 

180

Runoff in 

acre -feet

12,790 

16,430 

14,050

958,800

9,470 

9,970 

13,550 

47,7.20 

324, 100 

463,800 

91,740 

23,230 

9,480

1,036,000
KETTLE RIVER BASIN 273

Kettle River near Laurier, Wash. 

(International gaging station)

Location. Water-stage recorder, lat. 48°50'50", long. 118°13'00", in Sw£ sec. 11, T. 40

 N., R. 36 E., 500 feet downstream from Deep Creek, lj miles southeast of Laurier, and

12 miles upstream from Boulder Creek. 

Drainage area.--3,800 square miles. 

Kecords available.--September 1929 to September 1950. 

Average discharge.--21 years, 2,696 second-feet. 

Extremes. Maximum discharge during year, 20,400 second-feet June 15 (gage height, 13.11

 feet); minimum, 249 second-feet Sept. 23, (gage height, 2.69 feet).

1929-50: Maximum discharge, 35,000 second-feet May 29, 1948 (gage height, 17.25 

feet); minimum not determined, probably occurred during winter of 1929-30.

Maximum stage known, about 22 feet in May or June 1894, from information by local 

residents. 

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

 6737 which are poor. North Fork regulated by reservoir at Grand Forks, British Columbia. Numerous small diversions for irrigation and domestic supply.

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

United States under agreement with Canada.

Revisions (water years). W 737: 1930-31. W862: 1937. W 882: 1938.

Rating table, water year 1949-50, except period or Ice effect 

(gage height, In feet, and discharge, in second-feet)

2.7 

3.1 

3.5

4.0

253

446

675

1,020

4.5 

5.0 

5.5

6.0

1,430

1,910

2,500

3,180

6.5

7.0

3,920

4,740

6,610

8,730

10.0

11.0

12.0

13.0

11,100

13,800

16,800

20,000

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

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

Oct.

325 

316 

306 

311 

359

369 

374 

364 

369 

364

359 

354 

349 

354 

359

359 

354 

354 

349 

344

330 

320 

311 

316 

320

325 

325

339 

344 

369 

384

Nov.

410 

410 

399 

394 

394

389 

389 

394 

399 

415

436 

430 

436 

451 

462

473 

468 

462 

451 

446

446 

425

404 

404 

441

457 

495 

663 

882 

*975

Dec.

910 

875 

868 

847 

798

760 

694 

585 

539 

478

489 

415 

410 

420

495

534 

573 

579 

534 

626

590 

560 

540 

520 

500

470 

450 

450 

450 

470 

490

Jan.

47O 

450 

430 

400 

390

380 

380 

370 

370 

360

360 

360 

360 

350 

350

350 

350 

350 

*350 

360

370 

380 

390 

390 

380

370 

350 

350 

350 

350 

350

Feb.

350 

350 

350 

350 

350

350 

350 

360

370 

380

390 

380 

370 

380 

400

420 

440 

460 

*480 

500

500 

480 

500 

520 

540

560 

540 

500

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

480 

460 

470 

500 

520

540 

560 

580 

580 

560

540 

500 

457 

484 

478

484 

511 

597 

614 

620

614 

626 

638 

657 

657

651 

669 

675 

663 

651 

657

Apr.

644 

663 

694 

708 

720

760 

882 

975 

1,010 

1,060

1,100 

1,260 

1,860 

2,830 

3,110

3,180 

3,250 

3,250 

3,180 

3,400

4,000 

4,400 

4,080 

3,770 

3,620

3,540 

3,400 

3,400 

3,400 

3,620

Secondfoot-days

10,675 

14,100 

17,919

918,498

11,570 

11,920 

17,693 

-71,766 

314,770 

403,940 

90,850 

22,796 

9,935

997,934

Peak diBCharne (base, 13.300 sec. -ft.) . May 15 (12:45

16,800 sec. -ft.; June 15 (5 a.m.) 20,400 sec .-ft.

May

4,240 

4,570 

5,090 

5,450 

*5,450

5,450 

5,270 

5,450 

5,830 

6,810

8,510 

11,100 

13,600 

15,000 

15, 6OO

15,000 

14,400 

13,800 

11,600 

10,400

9,650 

10,900 

11,900 

11,100 

10, 900

11,600 

13, 300 

14, 400 

13,800 

12,700 

11,900

Maximum

384 

975 

910

5>4,900

470 

560 

675 

4,400 

15,600 

20,000 

7,220 

1,220 

517

20,000

June

11,600 

11,SOO 

12,400 

14,100 

16,200

16,500 

14,400 

12,200 

10,900 

10,900

11,900 

14,100 

16,800 

18,400 

20,000

18,700 

18, 4OO 

18, 100 

17,500 

16, 500

15,600 

15,000 

12, 400 

10, 100 

9,190

8,730 

8,290 

7,850 

7,640 

7,640

July

7,220 

6,610 

6,020 

5,450 

5,090

4,910 

4,400 

4,000 

3,620 

3,470

3,400 

3,110 

2,830 

2,630 

2,440

2,750 

2,130 

2,020 

1,910 

1,910

1,810 

1,710 

1,560 

1,480 

1,430

1,340 

1,260 

1,220 

1,180 

1,180 

1,260

Minimum

306 

389 

410

297

350 

350 

457 

644 

4,240 

7,640 

1,180 

534 

257

257

a.m.) 15,900 sec. -ft.

Aug.

1,220 

1,140 

1,020 

968 

903

875 

868 

826 

812 

792

746 

727 

688 

663 

638

626 

638 

651 

663 

614

585 

550 

534 

539 

620

714 

734 

675 

620 

597 

550

r-an

344 

470 

578

2,516

373 

426 

571 

2,392 

10,150 

13,460 

2,931 

735 

331

2,734

Sept.

517 

489 

462 

446 

410

394 

379 

374 

359 

349

344 

335 

330 

311 

306

297 

293 

284 

284 

271

266 

257 

257 

262 

266

266 

266 

271 

279 

311

Runoff in 

acre -feet

21,170 

27,970 

35j 540

1,822,000

23,640 

35,090 

142,300 

624, 300 

801, 200 

180,200 

45,220 

19,710

1,979,000

Jure 6 (2:30 a.m.)

Winter discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 21 to Mar. 11 (no gage-helgft record Jan. 28 

to Feb. 10: discharge computed on basis of weather records, observer's notes, and records for station 

near Perry).
274 KETTLE RIVER BASIN

Myers Creek near Myncaster, British Columbia 

(International gaging station)

Location. Water-stage recorder and 4-foot Cippoletti weir, lat. 49°00 I 00", long.

1'15", SO feet north of international boundary, a quarter of a. mile south of 

Mync ster, British Columbia, and 45- miles downstream from Mary Ann Creek.

Drainage area. : square miles.

Records available.--October 1929 to September 1950 (fragmentary), discontirued, in reports 

or Geological Survey. May 1923 to September 1929 in reports of Water Resources Division, Department of Resources and Development, Canada.

Extremes.--Maximum discharge recorded during year, 52 second-feet June 15 (gage height,

2". 28 feet, weir out); minimum recorded, 2.8 second-feet July 27 (gage height, 0.30 foot, 

weir out).

1923-50: Maximum discharge recorded, 109 second-feet June 7, 1942 (discharge measurement), June 11, 1948; no flow July 16-18, 25, 1926, Aug. 13-25, 1939.

Remarks.--Diversions above station for irrigation. No regulation. Cippoletti weir not 

in place during year.

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

under agreement with the United States.

Discharge, in second-feet, water year October 1949 to September 195C

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

ber. ....................................

mber. ...................................

lendar year 

ai*y

h. . .....................................

1 25-30

St. .......--..- . ........ . .. ..... .....

ember 2- 

ter year

Mar. Apr.

14.8

14.2 

14.0 

14.6

14.2 

15.8

Secondfoot-days

87.6 

826.6 

1,004.1 

218.9

98.1

-

May

18.2 

24.0 

24.8 

22.3 

20.7

19.4 

17,0 

17.0 

17.5 

19.7

20.7 

22. O 

26.5 

28.5 

30.3

31.8 

33.3 

32.4 

30.3 

28.8

3O.O 

33.3

31.8 

30.3 

28.5

30.6 

32.4 

32.4 

31.2 

30.6 

30.3

Maximum

15.8 

33.3 

50.0 

15.6

4.0

-

June

30.6 

30.3 

30.9 

33.6 

35.1

34.8 

33.6 

33.6 

32.1

30.9

29.7 

29.4 

33.6 

43.1

50.0

45.8 

42.2 

40.9

39.6 

37.8

35.1 

34.2 

36.6 

35.4 

32.4

29.1 

24.0 

22.3 

19.9 

17.5

July

15.6 

14.2 

13.1 

12.1 

10.9

9.9 

9.O

8.6 

8.6 

8.3

7.6 

7.4 

6.9 

6.6 

6.2

6.2 

5.8 

5.8 

6.0 

5.7

5.4 

5.1 

5.0 

4.9 

4.6

4.1

2.8 

a3.O 

3.3 

3.3

2.9

Minimum

14.0

17.0 

17.5 

2.8

3.1

-

Aug.

Mean

14.6 

26.7 

33.5 

7.1

3.4

-

Sept.

3.3 

3.3

3.2

3.2

3.2 

3.2 

3^2 

3.2 

3.2

3.1 

3.3 

3.2 

3.1

3.2

3.3 

3.3 

3.3 

3.4 

3.4

3.4 

3.3 

3.4 

3.4 

3.7

3.7 

3.8 

3.8 

4.0 

4.0

Runoff In 

acre-feet

174 

1,640 

1,990 

434

195

-

No gage-height recordj discharge Interpolated.
COLVTLLE RIVER BASIN 275

Colville River at Kettle Falls, Wash.

Location. Water-stage recorder, lat. 48°35'40", long. 118°04'00", in sec. 29, T. 36 N., 

R. 38 E., 600 feet downstream from Stevens County Light & Power Co.'s riant at foot of 

Meyers Falls, half a mile south of town of Kettle Falls, and 5 miles upstream from 

mouth.

Records available.--October 1922 to September 1950. 

Average discharge. 28 years, 263 second-feet.

Extremes. Maximum discharge during year, 1,370 second-feet Apr. 22 (gage height, 8.03 

feet); minimum, 22 second-feet Dec. 13 (gage height, 4.46 feet).

1922-50: Maximum discharge observed, 2,720 second-feet Apr. 20, 1938; minimum observed, 0.5 second-foot Aug. 15, 1930.

Remarks. Records good except those for periods of ice effect or no gage-1-eight record, 

which are fair. Several ditches divert water above station for irrigation. Slight 

regulation for power by small reservoir above falls.

Cooperation.--Gage-height record furnished by Washington Water Power Co.

Rating table, water year 1349-50, except periods of Ice effect

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used Mar. 1 to Apr. ZZ)

5.0 66 5.7 202 7.0 760 

5.2 92 6.0 300 7.5 1,040 

5.4 127 6.5 520 8.0 1,370

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

97 

82 

102 

96 

119

158 

175 

167 

150 

145

134 

150 

132 

139 

136

121 

132 

128 

121 

124

125 

126 

124 

130 

131

133 

137 

137 

134

156 

155

Nov.

147 

142 

142 

140 

138

138 

138 

143 

145 

149

156 

164 

169 

191 

204

207 

194 

177 

169 

164

156 

156 

163 

166 

170

170 

*186 

211 

220 

202

Dec.

194 

196 

185 

180 

174

164

164 

147 

154 

139

96 

123 

137 

149 

149

145 

147

152 

135 

99

95 

100 

110 

115 

120

120 

115 

115 

125 

115 

150

Jan.

130

130 

110 

105 

100

100 

100 

105 

110 

115

115 

115 

115 

105 

110

115 

120 

*105 

120 

130

130 

130 

140 

140 

130

140 

140 

130 

125 

130 

140

Feb.

130 

120 

120 

110 

120

120 

125 

130

120

120

130 

140 

150 

180 

200

220 

240 

250 

250 

240

230 

220 

220 

230 

260

310

350 

380

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

*372 

367 

358 

385 

457

560 

660 

735 

735 

710

635 

542 

498 

452 

416

408 

448 

565 

660 

760

835 

860 

890 

890 

860

810 

810 

785 

735 

710 

685

Apr.

685 

685 

735 

735 

735

760 

785 

810 

810 

810

810 

850 

920 

1,040 

1,130

1,160 

1,230 

1,300 

1,260 

1,260

1,300 

1,370 

1,34O 

1,230 

1,200

1,160 

1,160

1,130 

1,100 

1,070

Secondfoot-days

4,096 

5,017 

4,309

135,021

3 , 730 

5,415 

13,593 

30,580 

32,000 

14,453 

6,355 

3,582 

2,734

131,864

May

1,070 

1,070 

1,100 

1,100 

1,100

1,130 

1,130 

1,100 

1,070 

1,070

1,100 

1, 160 

1,230 

1,260 

1,300

1,260 

1,230 

1,200 

1,160 

1,100

1,040 

1,010 

950 

89C 

835

810 

760 

735 

710 

685 

635

Maximum

175 

220 

196

1,680

140 

380 

830 

1,370 

1,300 

610 

336 

156 

109

1,370

June

610 

588 

565 

547 

529

506 

502 

524 

538 

524

502 

484 

475 

470 

475

484 

466 

466 

448 

430

426 

448 

462 

462 

470

462 

439 

408 

385 

358

July

336 

312

293 

276 

262

248 

239 

226 

226 

232

229 

217 

202

194 

182

180 

182 

177 

177 

188

194 

185 

174 

166 

168

149 

149 

146 

145 

142 

159

Aug.

156 

154 

136 

132 

126

110

134 

128 

128 

122

116 

116 

90 

122 

112

96 

94 

104 

105 

88

111

98 

98 

118

128 

111 

128 

114 

1O6 

106

Minimum Mean

82 132

138 167 

95 139

70 370

100 120 

110 193 

358 632 

685 1,019 

635 1,032 

358 482 

142 205 

88 116 

74 91.1

74 361

Sept.

104 

99 

74 

108 

92

86 

85 

87 

84 

74

98 

88 

90 

88 

87

89 

79 

96 

92 

33

90 

86 

84 

79 

92

100 

94 

101 

109 

106

Runoff in 

acre-feet

8,120 

9,950 

8,550

267,800

7,400 

10,740 

38,860 

60,650 

63,470 

28,670 

12,600 

7,100 

5,420

261,500

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 22 to Feb. 28 (no gage-height record Jan. 15- 

177 Jan. 25 to Feb. 28; discharge computed on basis of weather records, observer's notes, and record 

of discharge through plant wheels and spillage).
276 COLVILLE RIVER BASIN

Loon Lake near Loon Lake, Wash.

Location. Water-stage recorder, lat. 48°02'00", long. 117'36'15", in NW^ sec. 11, T. 29 

M., K. 41 E., at south end of Loon Lake and 2.5 miles southeast of town of Loon Lake. 

Datum of gage is at mean sea level, unadjusted.

Drainage area.--33.4 square miles.

Records available.--April to September 1950.

Extremes.--Maximum elevation during period, 2,382.79 feet May 3; minimum, 2,380 96 feet 

Sept. 30.

Remarks.--Elevation controlled by dam at outlet. Some small diversions for irrigation of 

lawns and gardens.

Elevation, in feet, April to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb. Mar. Apr.

.

-

_

_

-

_

-

_

_

-

_

_

_

_

-

.

_

_

_

-

_

_

_

_

-

_

82.74

82.74

82.73

-

May

82.74

82.77

82.78

82.78

82.77

82.76

82.75

82.74

82.73

82.72

82.71

82.70

82.69

82.67

82.66

82.64

82.64

82.61

82.59

82.57

82.55

82.54

_

_

-

.

_

_

_

-

-

June

_

-

_

-

82.25

82.25

82.24

82.24

82.23

82.22

82.22

82.22

82.22

82.22

82.22

82.21

82.21

82.21

82.20

82.20

82.27

82.27

82.27

82.28

82.27

82.26

82.25

82.25

82.24

82.23

-

July

82.22

82.22

82.20

82.18

82.16

82.15

82.13

82.11

82.11

82.10

82.08

82.07

82.06

82.03

82.02

82.02

82.00

81.99

81.98

81.97

81.96

81.95

81.95

81. 34-

81.92

81.91

81.90

81 . 87

81.86

81. 8?

81.84

Aug.

81.83

81.81

81.78

81.77

81.75

81.72

81.72

81.70

81.68

81.67

81.67

81.65

81.64

81.62

81.60

81.60

81.58

81.57

81.57

81.57

81.55

81.52

81.54

81.52

81.50

81.49

81.47

81.46

81.44

81.43

81.40

Sept.

81.38

81.37

81.37

81.35

81.34

81.32

81.30

81.28

81.27

81.24

81.22

81.21

81.19

81.17

81.15

81.14

81.13

81.12

81.11

81.10

81.09

81.08

81.07

81.06

81.05

81.04

81.02

81.01

80.98

80.96

-

Note.--Add 2,300 feet to obtain elevation above mean sea level.
COLVILLE RIVER BASIN 277

Sheep Creek at Loon Lake, Wash.

Location.--Water-stage recorder, lat. 48°03'30", long. 117 ° 39 1 00", on line between sees. 

32 and 33, T. 30 N., R. 41 E., 0.4 mile downstream from outlet of Loon Lake and 1 mile 

west of town of Loon Lake.

Drainage area.--36.I square miles, approximately.

Records available.--April to September 1950 (discontinued).

Extremes.--Maximum discharge during period, 6.9 second-feet May 2 (gage height, 1.43 feet); 

no flow Aug. 4 to Sept. 30.

Remarks.--Records fair. Flow regulated by Loon Lake. Some small diversions for irrigation 

of lawns and gardens.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

Wo -IT

June 

July 

Augu 

Sept

Th

lendar year

e period ................................

Mar. Apr.

6.3 

6.3 

6.3 

6.3

6.3 

6.2 

6.2 

6.0 

5.9

6.0 

5.9 

6.0 

6.0 

5.9

5.9 

6.2 

6.0

6.0 

6.0

Secondfoot-days

115,7 

156.1 

74.4 

15.4 

.3 

0

-

May

5.0 

6.6 

5.6 

5.3 

6.3

6]2 

6.0 

5.2 

6.3

6.0 

6.0 

5.9 

5.9 

5.8

5.5 

5.5 

5.2

5.2

5.1

5.0 

4.7 

4.6 

4.6 

4.4

4.3 

4.2 

4.0 

3.9 

3.8 

3.6

Maximum

6.3 

6 .6 

3.5 

2.0 

.1 

0

-

June

3.5 

3.4 

3.3 

3.2 

3.2

2.9 

3.0 

2.9 

2.9 

2.8

2.7 

2.9 

2.9 

2.9 

2.8

1.8 

1.0 

.8 

1.2 

1.8

1.1 

2.0 

2.5 

2.5 

2.5

2.9 

3.0 

2.4

1.8 

1.7

Minimum

July

1.4

1.2 

1.1 

.9

.8

.7 

.5 

.5 

.4 

.3

.3

1.2 

2.C 

1.3 

.4

.4 

.3 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

5.9 

3.6 

.8

.1 

0 

0

-

Aug.

0.1 

.1 

.1 

0 

0

o

0

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0 

0

M-san

6.09 

5.36 

2.48 

.50

.01 

0

-

Sept.

Runoff in 

acre-feet

229 

329

148 

31 

.6 

0

738
Drainage area.--82 square miles.

Records available. --February IJ-iQ to September 1950.

Average discharge.--10 years, 47.9 second-feet.

Extremes.--Maximum discharge during year, 333 second-feet May 13 (gage height, 4.19 feet); 

minimum, 7.2 second-feet Sept. 17, 18 (gage heigh*-, 1.15 feet).

1940-bO: Maximum discharge, 538 second-feet May 4, 1948 (gage height, 5.25 feet); 

minimum recorded, 3.6 second-feet Aug. 28, 31, Sept. 1, 1940, but may have been less 

during period of no gage-height record Feb. 1-4, 1940.

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

shifting control, which are ooor. iiversion above station for irrigation.

s (water yearsJ.--W 1042:

(gaqe height, In feet, and discharge, In second-feet

Discharge, in second-feet, water year October 1949 to September 195U

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

8.4

8.1

3.1

23

20 

13 

16 

16 

16

15 

15 

15

15 

14

14 

14 

14 

14 

14

14 

13

13

12

12

12 

15 

20 

18

ie

Nov

15 

14 

]2 

12

3.8

9.1

9.8

11 

12

i3 

15

16

18

14 

13 

12 

11 

11

9.8

14

15

15 

19

16

16

Dec

15 

14 

14

14 

14

14 

14 

a!4 

a!3 

a!3

a!3 

al3 

a!3 

alo 

al4

ai4 

a!3 

a 13

al3

a!2 

a!2 

al2 

alZ 

a!2

a!2 

a!2

a!3 

al4

a!4

Jan I Feb Mar

a!3

a!3

al3 

a!3

ai2

a]2 

a!2 

a 12

al2 

a!2

bll 

bll

bll

bio 

blO 

bll 

blO 

9.4

9 .4

9.4 

b9.2 

a9.2 

a9.2 

a9.0

a9.i

d.9.L

a9.C 

a9.C 

a9.C

b9.0 

b9.C 

b9.C 

b9.4 

t3.4

09.1

blu 

blO 

11 

15

19 

20

17 

16

15

14 

14 

13 

14

16 

18 

17

... _ tv, SecondMonth foot-days

Ootc 

Hove 

Dece

C'c

Jam 

Febi 

Marc 

Apr] 

May 

June 

Julj 

Augv 

Sepi

We

lendar year 134 

ary

h ..... .......

4,

fi.

ember ....... ... 

ter year 1949-50 .....

146.6 

104.5 

107

398.3

54S.8 

557.2 

119 

578 

532 

J73

i95.3 

245.3

.. 17,977.7

Peal' discharge (base, 200 sec. -ft.). Apr

*16 

16 

17 

23

43 

35 

34

31

28

23

25 

23 

23

23

58 

57 

50

47 

51 

5C 

47 

46

44 

44 

42 

40 

41 

42

Maximum

23

19

402

13 

20 

5S 

26o 

330 

99 

42 

25 

11

330

Apr.

51 

70 

61

55 

63

75 

79 

82

79 

86

L04 

124 

187 

134 

202

209 

224

263 

247 

224

202 

202

194

180 

187 

187

May

209

202 

209

263 

304 

330 

312 

295

271

occ

232 

216 

194

187 

177 

167 

155 

146

139

ill

119 

113 

IDS

June

92 

94 

90 

86

32

8] 

87 

87 

79 

74

71 

68 

68 

68 

70

66

65 

63 

59 

55

58 

66 

66 

65 

61

56 

51 

48 

46 

44

July

42 

40 

38 

36 

36

37 

37 

36

35

35 

a35 

a35

a35

a35 

a35 

a35 

35 

35

35 

35 

31 

34 

a34

a33

a3E 

a30 

a29 

a28 

a2*5

I Per 

Minimum Mean square 

mile

8.1 14.4 0.176 

9.1 13.5 .165 

12 13.1 .160

7.8 52.1 .635

9.0 11.2 .137 

9.0 12.8 .156 

16 36.1 , 440 

51 156 l.SO 

105 204 Z.49 

44 63.1 .843 

26 34.6 .422 

9.1 16.0 ..95 

7.5 8.18 .100

7.5 49.3 .501

. 21 (7 a.m.) 271 see. -ft.; May 13 (B

* Winter discharge measurement made on thio day. 

a No gage-height record; discharge computed on basis of weather records and re 

Spokane Hiver near Bartford. 

b Stage-discharge affected by ice. 

Note .--Shiftinff-control met.iud used ucr . 1 to Dee. 7, Sept. 19-5C .

Aug.

a23 

a23 

a22

a'"'

alS

al8

al7 

al7 

ai7 

a!6

a!5

alS 

a!4 

a!4

al4

a!4 

a!3

a!3 

a!2

12 

11 

10 

9.3 

9.4 

9.1

Sept.

8.7 

8.4

8.1 

8.1 

3.1

3.1

T'.B

7.8 

7.8

7.5 

7.5 

7.5 

7.5 

7.5

7.5 

7.5 

7.5

7.5

7.8

7.8

7.8 

7.8 

8.1

11 ' 

10 

9.8 

9.3

Runoff

Irenes

0 . 20 

.18 

.18

6.61

!l6 

.51 

2.12 

2.87 

.94 

.49 

.22 

.11

8.14

Acre-feet

836 

807

37,690

C88 

738 

2,220 

9,280 

12,560 

4.110 

2,130 

982 

487

35.660

a.m.) 338 sec . -f t . 

2ords for Little
SFOKAHE RIVER BASIN

Coeur d'Alene River near Prichard, Idaho

Drainage area.--533 square miles (revised). 

Records available.--August 1944 to September 1950.

Extremes.--Maximum discharge during year, 14.300 second-feet May 14; maximum gage height, 

11.7 feet Jan. 22, from floodmark (ice jam); minimum discharge observed, 195 secondfeet Oct. 3, 4; miririum observed gage height, 1.68 feet Oct. 3, 4, 23-27.

1344.50: Maximum daily discharge, 16,000 second-feet Dec. 15, 1946, computed on 

basis of records for stations it Enaville and near Catallu; minimum observed, 90 

second-feet Sept. IS, 1944 (gage height, 1.00 foot).

Discharge ater year October 1949 to September 1950

Day Oct . Nov

1 165 a260

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

165 25o

159 236

159

273

442

373

292

292

292

292

262

247

229

215

a203

194

188

181

175

175

168

162

162

165

162

162

258

473

30 352

222

218

208

194

201

208

222

232

530

1,620

2,130

1,650

1,350

952

a860

£33

a620

550

492

501

511

540

613

1,700

2,990

*2.150

1,750

Dec

1,500

1,430

al , 340

1,260

a,. ,100

936 751'

751

765

723

602

624

602

511

511

511

550

530

492

437

b400

t390

455

a520

a470

a410

44 B

1,020

1,130

920

31 3041 - aSOO

Month

October . . . . ..........

November ...... ... .... . . .

December ....... . ... . . .

Calendar year 1S4[ . . ....

January . .... ... ... . ...

February .... .......... ....

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

April ... . .......

May ... ......... ..... . . .

June ........ .... ... .

July . . . . . . .... .......

August ..................

September . . .... . ... .... .

Water year 1949-50 ....

Jan. j Feb

a700 a703

a620

a530

a480

War Apr

2,130 3,800

aG60 1,930 6,240

*b660 1,770

780

a5CO 904

4,340

3,100 3,280

5,950| 2,930

520 952 5.C30

530

520

520

2 , 800

1,220 3,910 2,660

1,270 *3.250 H.7OO

1,140 2,5£0

511 al,000| 2,390

455

411

856

624

386 580

336 ! a600

b280

a300

8360

a3SO

b400

1,320

£.4,000

723

751

780

336

1,000

1,050

1,980

al,700

1,550

1,390

1,270

2,730

2,510

2,450

2,820

3,670

4,420

4,360

1,320 4,200

1,980 5,810

4,180! 6,200

3,650

3,020

5,420

5.360

l,030i 2.640! 6, £40

984

3,350 1.000

2,460

al, 720

al,270

al,200

al,200

81,600

2,290

2 , 700

2,750

2,580

al,100

al.OOO _

a840

Second2,350| 6,410

2,130 5.380

1,980 4,390

al,800

1,700

1,590

1,430

1,390

1 , 320

1,340

foot-days »"""'""'"

 !

7,34-1

24,651

22,887

515,337

28,539

32,120

73,730

121,660

198,380

103,850

26,468

5,901

6,367

655,894

473

2,990

3,330

3,380

3,320

3,300

3,250

a3,400

May

3,970

4,030

3,550

3,490

3 520

3,380

June | July

a4,400

4,500

4,710

a4,800

5,140

4,850

3,270 a4,200

3,410 3,380

3,770 1 2,880

5,400

7,290

9, 990

12,300

14,000

12,600

11,400

10, 100

7,810

5,930

4,780

4,530

5,950

7,960

6,520

5,890

5,890

6,590

6,300

5,300

a4 , 660

a4,20C

Minimum

159

'. 94

1,5001 390

11, 000 | 146

4,000

2,750

5,950

6,410

14,000

5,140

1,930

411

269

14,000

280

1,270

2,450

3,270

2 , 040

468

181

159

2.700

3,040

4,390

a4,400

84,200

3,590

3,770

3,740

3,410

3,170

3,060

3,0£0

2,990

2,800

2,46O

2,580

2,630

1,930

1,

1,

1,

150

390

ISO

1,370

1,270

1,

1,

1,

.40

Aug

411

403

394

386

386

Sept.

236

236

229

229

8230

377 229

8360 222

110 356

320

-84

388

325

51

09

709

723

a

i77

359

350

647

591

370

350

506

496

496

2,460

2,320

2,180

2,040

-

Mean

237

822

738

1,414

921

1,147

2,378

4,055

6,399

3, 462

854

319

212

1,797

168

tee

187

3lP

468

Per

square

0.407

1.41

1.27

2.43

1.53

1.97

4.08

6.96

11.0

5.94

1.46

.547

.364

3.08

356

348

340

340

222

215

208

208

a208

332| 208

a302 a205

304 a202

320 201

304 201

289 194

a280 194

273

a270

266

273

336

304

289

273

266

251

251

243

194

18S

188

181

181

181

208

269

251

229

a£20

-

Runoff

Inches Ac re feet

0.47 14,560

1.57 48,890

1.45 45,400

32.92 1,024,000

1.82 56,610

2.05 63,710

4. 70 146,200

7.76 241,300

12.65 393,500

6.62 206,000

1.69 52,500

.63 19,640

.41 12,630

41.83 1,301,000

* Winter discharge measurement made on this day. 

a No gage-height record: discharge computed on basis 

Coeur d'Alene River stations .

b Stage -discharge relation affected by ice.

238382 O - 53 - 19

of weather records and records for other
280 SPOKA1JE RIVER BASIN 

Cot or d'Alene River at Enaville, Idaho

Location.--Water-stage recorder, lat. 47°34', long. 116°15', in NWt sec. 30, T. 49 N., 

H. u E. , 800 feet upstream from highway "bridge, a quarter of a mile northwest of 

Enaville post office, 1.1 miles upstream from South Fork, and 3.5 miles downstream 

from Worth Fork. Datum of gage is 2,100.00 feet above mean sea level, referenced to 

bench mark near mouth of North Fork, elevation, 2,204.880 feet (U. 3. Geological forve 

Bull. 567, p. 82}.

Drainage area.--895 square miles.

Records available.--October 1939 to September 1950. March 1911 to April 1913 (fragmentary records collected at site a quarter of a mile downsteam, published as Worth Tork 

of Coeur d'Alene River at Enaville).

Average discharge.--11 years (1929-50), 1,817 second-feet.

Extremes.--Maximum discharge during year, 23,100 second-feet May 14 (gage height,72.96 

feet), from rating curve extended above lo.OOO second-feet by logarithmic plotting; 

minimum, 246 seconi-feet Oct. 3, 4; minimum gage height, £0.79 feet Se*>t. 24, 25.

1911-13. 1939-50: Maximum discharge, 28,100 second-feet Dec. 15, 1946 (gage height, 

74.79 feet), from rating curve extended above 13,000 second-feet by logarithmic 

plotting; minimum daily, 145 second-feet Dec. 24, 1944: riinimum gage height, 60.16 feet 

Nov. 19, 1944.

From local information concerning high-water marks, flood in December 1933 reached 

a stage of 79,47 feet and that in April 1938 a stage of 78.16 feet.

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

which are fair. Ho appreciable diversion or regulation above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

260

250

Nov.

423

389

Dec.

2,190

2.050

251 1 361 1,960

251

447

747

640

512

435

429

441

418

378

350

322

312

296

281

275

265

260

260

256

251

251

251

251

339

634

572

476

Jan.

1,140

1,000

873

339 1,800 786

322 I. 710 873

312

301

301

1,590 j 970

1,380

1,230

312 1,150

372

441

806

2,200

2,810

2,200

1,800

1,460

1,240

1,070

956

1,140

956

894

907

792

721

773

819

792

728

640

859 572

T92

773

792

812

894

2,320

4,200

*3,260

560

628

709

928

873

806

747

709

690

652

£36

Feb.

al.ZOO

al.100

al, 100

1,400

1,500

1,600

1,800

2,000

1.900

1,600

1,400

1,000

1,000

1.000

418 1,300

447 1,400

53K

542

542

591

f 1,860

f7,040

86,500

a5,000

646 a4,000

566 a2,800

677

1,260

a2,000

a2,000

1,810 al.900

2,680 1,530

1,290

al,600

al,300

Month

October , . ... ...............

November ........ . ... . .

December .... ............. .

Calendar year 1949 ... . . .

January ....... . . .... .....

February . ..... .... . .

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

April ... ..............

May .............. ........ . .

June . ... ..... ....... ...

July .... .... ............

August .......... ........ . .

September ........... .....

Water year 1949-50 ...... ...

1,500

1,600

1,700

1,710

1,640

1,610

1,580

2,720

*5,090

5,410

5,140

4,580

_

_

-

Seoondfoot-days

11,371

35,797

34,470

795,834

50,659

56,580

140,610

198,550

136*650

36,354

9^940

Mar.

3,890

3,410

3,160

4,570

Apr May

5,620 5,870

10,600 £

7,840 E

5,750 h

11,400 5,000

10,200 4,710

7,690

6,060

4,980

4.110

3,500

3,030

2,800

2,530

2,370

2,340

3,790

10,300

7,900

6 , 040

4,470

4,620

4,540

4,230

4,130

4,470

6,120

7,570

7,780

7,500

9,700

10,500

8,690

8,180

5,000 9,300

4,380 10,200

3,940 8,620

3,650 6,860

3,460

3,230

3,020

5,960

5,360

5,160

2,7101 5,030

,020

,720

,430

5,520

5,640 i

4

c

,200

j960

,480

6,700

10, 400

U

IE

22

,500

,200

,100

20,100

16,300

14

11i

,100

,900

,150

7,27"

6,770

E

If

c

,140

,800

,080

7,570

7,570

f

f

2,430 4.920 ! -

2,350

2,370

Maximum

747

4,200

2,190

16,000

7,040

5,410

11,400

10,600

22 , 10C

6,820

2,550

624

408

1,014, 210 1 22,100

E,120 I f

-

,730

,820

,540

,410

5,840

Minimum

251

301

5SO

223

418

1,000

2,340

4,130

4,960

2,740

646

370

298

251

June

5,960

6,070

5,890

6,210

July

2,550

- * *

,]

c

10

10

40

5,820 ,820

6,650

5,620

4,770

4,170

3,760

4,000

5,080

5,640

5,490

4,850

4,770

4,800

4,460

4,080

3, 900

3,920

3,860

3,610

3,320

3,450

3,460

3,320

3,090

2,890

2,740

-

Mean

367

1,193

1,112

2,180

1,634

2,021

4,536

6,613

9,317

4,555

1,173

464

331

2.779

,660

i

).

, 2

70

60

60

,320

,230

',i t

,C

50

60

30

,oco

1,020

c

6

c

46

Aug

624

^

i

i

87

66

46

542

532

£

i

4

22

03

94

489

476

i

4

4

80

58

50

445

445

<

£3 1 4

10 4

9E9

E-

"

-

EO

£2

62

31

696

679

^

f

£

-

E6

46

68

6?0

Per

square 

mile

0.410

1.33

1.24

2.44

1.83

2.26

5.07

7.39

1C. 4

5.09

1.31

.518

.370

3.11

37

24

12

404

396

3

i

E

92

41

08

467

428

4

?

2

08

92

84

77

370

Sept

362

358

351

348

351

351

348

341

337

331

327

324

324

320

314

314

311

308

305

305

30E

302

298

298

302

337

408

381

348

331

-

Runoff

Inches

0.47

1.49

1.43

33.06

2.11

2.35

5.84

8.25

12.00

5.68

1.51

.60

.41

42.14

Acre-feet

22,550

71,000

68,370

1,578,000

100,500

112,200

278,900

393,800

572,900

271.000

72,100

28,560

19,720

2,012,000

a.m.) 11.200 sec.-ft.: May 14 (1:30 p.m ) 23,100 sec".-ft.:'May 23'(2:30 p.m.) 11,300 sec.-ft.

* Winter discharge measareinent made on this day.

a No gage-height record; discharge computed on basis of weather records and records for stations 

near Cataldo and near Prlchard.

f Computed fror partly estimated gage-height record.

No_ce_. Stagp-discharge relation affected by ice about Jan. 25 to ^eb. 18.
SPOKANE RIVER BASIN 281

Coeur d'Alene River near Cataldo, Idaho

Location.--Water-stage recorder, lat. 47°34', long. 116°18', in sec. 26, T. 49 N., R. 

1 E., if miles upstream from Cataldo and 3 miles downstream from South Fork. Datum of 

gage is 2,100 feet above mean sea level, referenced to bench mark "2143 S" (U. S. Geol. 

Survey Bull. 567, p. 82).

Drainage area. 1,220 square miles.

Records available.--April 1911 to December 1912, July 1920 to September 195C.

Average discharge. 31 years, 2,421 second-feet.

Extremes.--Maximum discharge during year, 26,200 second-feet May 14 (gage height, 49.44 

 feet); minimum, 352 second-feet Oct. 3, 4 (gage height, 38.40 feet).

1911-12, 1920-50: Maximum discharge, 55,300 second-feet Dec. 22 or 23, 1933 (gage 

height, 56.9 feet, from floodmark), from rating curve extended above 24,000 second-feet 

by logarithmic plotting; minimum, 122 second-feet Dec. 4, 1929; minimum gage height, 

37.03 feet Sept. 6, 1931.

Remarks. Records good except those for periods of ice effect, which are fair. No appreciable diversion or regulation above station.

Cooperation.--Water-stage recorder graph and four discharge measurements furnished by 

Washington Water Power Co.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

366 

366 

357 

357 

512

892 

796 

644 

554 

536

554 

530 

500 

458 

446

425 

415 

385 

390 

385

381 

376

376 

371

366

366 

366 

482 

828 

756 

630

Nov.

574 

536 

512 

482 

464

452 

435 

435 

446 

524

595 

1,040 

2,320 

3,110 

2,800

2,440 

2,100 

1,840 

1,620 

1,450

1,330 

1,210 

1,190 

1,220 

1,270

1,440 

3,290 

5,270 

4,390 

3,700

Dec.

3,200 

3,060 

2,920 

2,700 

2,580

2,390 

2,120 

1,880 

1,780 

1,730

1,450 

1,370 

1,360 

1,190 

1,080

1,150 

1,210 

1,170 

1,070 

940

860 

844 

908 

1,070

958

892 

1,"030 

2,080 

2,760 

2,460 

2,080

Jan.

1,840 

1,620 

1,440 

1,290 

1,430

1,450 

1,300 

1,310 

1,220 

1,130

1,070 

1,060 

1,020 

850 

650

700 

820 

830 

840 

1,000

5,100 

8,600 

8,150 

5,310 

4,300

3,500 

3,100 

2,950 

2,900 

2,600 

2,300

Month

Octo 

Nove

Dece

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Ha

lendar year 1942

ember ........ .........

ter year 1949.50 - .......

Feb.

1,960 

1,960 

1,960 

2,050 

2,250

2,500 

2,750 

3,000 

2,800 

2,600

2,350 

2, 140

1,660 

1,670 

1,780

2,260 

2,790 

2,940 

3,010 

3,000

2,850 

2,730 

2,650 

4,250 

*7,240

8,030 

7,720 

6,650

Secondfoot-days

15,166 

48,485 

52,292

1,036,652

71,680 

89,550 

185,620 

251,870 

359,530 

200,610 

59,100 

22,710 

14,538

1,371,151

Mar.

5,570 

4,900 

4,530 

6,760 

14,600

13,200 

10,300 

7,910 

6,470 

5,230

4,410 

3,880 

3,560 

3,280 

3,080

3,080 

5,900 

12,700 

10,000 

7,790

6,540 

5,810 

5,250 

4,900 

4,600

4,270 

3,960 

3,590 

3,210 

3, 140 

3,200

Maximum

892 

5,270 

3,200

19,200

8,600 

8,030 

14,600 

13,600 

25,600 

9,840 

3,960 

1,000 

595

25,600

Apr

7,940 

13,600 

10,200 

7,410 

6,430

6,050 

5,770 

6,010 

5,870 

5,470

5,430 

5,970 

7,890 

9,560 

9,820

9,480 

11,800 

12,800 

10,900 

10,300

11,500 

12,500 

10,900 

8,800 

7,600

6,800 

6,470 

6,250 

6,070 

6,280

May

7,130 

7,360 

6,940 

6,520 

6,580

6,670 

6, 170 

5,990 

6,540 

7,980

12,100 

16,800 

21,800 

25,600 

23,800

20,200 

17,600 

14,700 

11,500 

9,450

8,850 

10, 800 

13,800 

12,200 

10,400

10,500 

11,900 

12,000 

10,400 

8,960 

8,290

Minimum

357 

435 

844

334

650 

1,660 

3,080 

5,430 

5,990 

4,230 

1,050 

548 

430

357

June

8,530 

8,730 

8,560 

9,040 

9,840

9,530 

8,010 

6,720 

5,870 

5,350

5,850 

7,380 

8,220 

8,080 

7,180

7,200 

7,220 

6,510 

6,090 

5,870

5,910 

5,710 

5,530 

5,080 

5,150

5,160 

4,940 

4,600 

4,410 

4,230

Mean

489 

1,616 

1,687

2,840

2,312 

3,198 

5,988 

8,396 

11,600 

6,687 

1,905 

733 

485

3,757

July

3,960 

3,650 

3,350 

3,100 

2,940

2,730 

2,560 

2,380 

2,260 

2,160

2,030 

1,900 

1,800 

1,710 

1,660

1,660 

1,570 

1,470 

1,530 

1,510

1,390 

1,320 

1,260 

1,220 

1,160

1,110 

1,070 

1,050 

1,150 

1,240 

1,100

Per 

square 

mile

0.401 

1.32 

1.38

2.33

1.90 

2.62 

4.91 

6.88 

9.51 

5.48 

1.56 

.601 

.398

3.08

Aug.

1, ooo

958 

916 

884

876

868 

852 

820 

796 

788

764 

764 

740 

724 

700

700 

686 

672 

537 

630

616 

602 

700 

764 

708

651 

616 

595 

581 

554 

548

Sept.

542 

530 

524 

512 

518

518 

500 

494 

482 

482

476 

476 

476 

470 

470

464 

464 

458 

452 

446

435 

435 

430 

430 

435

512 

595 

548 

494 

470

Runoff

Inches

0.46 

1.48 

1 59

31.60

2.19 

2.73 

5.65 

7.68 

10.96 

6.12 

1.80 

.69 

.44

41.80

Peak discharge (base, 11,000 sec .-ft .) . Jan. 22 (11 p.m.) 11,100 sec. -ft.; Mar. 5 (4

Acre- feet

30,080 

95,170 

103,700

2,056,000

142,200 

177,600 

368,200 

499, 600 

713,100 

397,900 

117,200 

45,040 

28,840

2,720,000

p.m.)

15,600 see.-ft.; Mar. 18 (9:30 a.r.) 13,400 sec.-ft.; Apr. 2 (6 a.m.) 14,200 sec.-ft.; Apr. 18 

(3 a.m.) 13,500 sec.-ft.; May 14 (2:30 p.m.) 26,200 sec.-ft.; May 23 (1:30 p.m.) 14,400 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Jan. 13-22, Jan. 25 to Feb. 11.
282 SPOKANE RIVER BASIN

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

Location.--Water-stage recorder, lat. 47°40', long. 116 0 46', in sec. 24, T. 50 N., H. 4 

W77~500 feet southwest of south end of Eleventh Street, Coeur d'Alene. Datum of gage 

is 2,100.00 feet above mean sea level, referred to originally accepted elevation 

(2,157.40 feet) of Geological Survey bench mark in southeast corner of Men-lain Building 

(see Water-Supply Paper 882).

at

Drainage area.--5,700 square miles (revised).

Records available.--February 1905 to September 1950. April 1903 to February 1905 

St. Joe Boom Co.'s gage at mouth of St. Joe River.

Extremes.--Maximum contents during year, 550,600 acre-feet May 19 (elevation, 2,133.93 

 feet'T, minimum, 117,400 acre-feet Feb. 16 (elevation, 2,124.35 feet).

1903-50: Maximum contents, 834,900 acre-feet Dec. 25, 1933 (elevation, 2,139.05 

feet); minimum, 2,700 acre-feet below zero of contents table Oct. 10-12, 1904, Sept. 24, 

25, 1905, Oct. 14 to Nov. 3, 1906 (elevation, 2,119.9 feet).

Maximum contents known prior to 1903, 753,300 acre-feet May 31, 1894 (elevation, 

2,137.6 feet, from high-water marks).

Remarks.--By regulation at Post Falls Dam the Washington Water Power Co. stores water in 

Coeur d'Alene Lake for power generation at Post Falls and other plant= on Spokane River. 

Storage is within natural range of lake stage. Contents given herein are those above 

elevation 2,120.0 feet. Capacity of lake between elevations 2,120 and 2,140 feet, 

889,000 acre-feet.

Cooperation.--Gage-height record graph furnished by Washington Water Power Co.

Elevation, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7.9G

7.95

7.95

7.94

7.96

7.97

7. 98

7.98

27.99

27.97

27.92

27.87

27.82

27.80

27.81

27.80

27.79

27.78

27.80

27.81

27.83

27.85

27.87

27.90

27.90

27.92

27.92

28.00

28.00

27.99

27.96

Nov,

27.91

27.86

27.81

27.75

27.69

27.64

27.58

27.52

27.48

27.47

27.47

27.41

27.46

27.52

27.56

27.61

27.65

27. £7

27.64

27.62

27.60

27.57

27.53

27.53

27.55

27.60

27.79

27.91

27.94

27.97

-

Dec.

27.86

27.81

27.83

27.89

27.94

27.91

27.86

27.90

27.92

27.92

27.94

27.91

27.87

27.80

27. 77

27.74

27.70

27.62

27.56

27.47

27.38

27.31

27.24

27.25

27.25

27.24

27.26

27.20

27.22

27.28

27.27

Jan.

27.25

27.20

27.14

27.05

26.96

26.90

26.82

26.78

26.71

26. S7

26.58

26.51

26.42

26.32

26.19

26.07

25.94

25.81

25.72

25.68

25.64

25.88

26.27

26.42

26.39

26.31

26.32

26.41

26.43

26.42

26.35

Feb.

 

26.29

26.14

25.99

25.88

25.74

25.65

25.50

25.39

25.22

25.06

24.91

24.75

24.61

24.48

24.39

24.37

24.47

24.66

24.85

25.04

25.13

25.21

25.22

25.41

26.04

26.80

27.31

27.61

_

-

Mar.

- 

27.74

27.73

27.70

27.85

28.35

28.99

29.46

29.68

29.71

29.60

29.33

29.04

28.71

28.39

28.04

27.81

27.99

28.74

29.38

29.69

29.80

29.79

29.58

29.51

29.36

29.14

28.93

28.68

28.37

28.10

27.85

Apr.

27.80

28.31

29.05

29.38

29.46

29.46

29.37

29.30

2S.23

29.13

29.03

28.99

29.04

29.29

29.57

29.77

29.97

30.30

30. S2

30.82

30.96

31.17

31.36

31.43

31.31

31.10

30.85

30.59

30.34

30.10

May

29.91

29.85

29.80

29.73

29.63

29.52

29.42

29.29

29.18

29.09

29.16

29.46

30.01

30.83

31.81

32.74

23.40

33.79

33.90

33.77

33.44

33.09

32.94

33.00

33.06

32.98

32.89

32.89

32.90

32.81

32.67

June

32.47

32.30

32.17

32.06

31.99

31.97

31.99

31.93

31.72

31.43

31.15

30.99

30.98

31.07

31.11

31.11

31.16

31.17

31.13

31.03

30.95

30.86

30.73

30.57

30.36

30.18

29.98

29.78

29.58

29.38

-

July

29.18

28.98

28.77

28.53

28.29

28.02

27.77

27.50

27.22

26.98

26.71

26.43

26.40

26.51

26.70

26.84

27.00

27.18

27.35

27.44

27.47

27.48

27.54

27.63

27.68

27.74

27.79

27.82

27.85

27.89

27.92

Aug.

27.94

27.96

27.95

27.92

27.93

27.96

27.94

27.94

27.97

27.96

27.96

27.97

27.96

27.95

27.94

27.92

27.91

27.90

27.89

27.90

27.91

27.93

27.98

27.96

27.92

27.92

27.94

27.92

27.92

27.91

27.90

Sept.

27.90

27.89

27.88

27. 88

27.88

27.88

27.87

27.86

27.87

27.87

27.87

27.87

27.86

27.88

27.88

27.89

27.90

27.91

27.93

27.95

27.95

28.00

28.02

28.03

28.04

28.04

28.04

28.01

28.00

27.99

-

nthiy elevation and contents, year October 1949 to September 195O

Date

Calendar year 1949......

AUK 31

Water year 1949-5O. . . . . .

Elevation 

(feet)t

-

-

Contents 

(acre-feet)

236,600

235,600

-

172,000

^02 900

-

Change in contents 

during month 

(acre-feet)

_

-1,000

-28,900

+59,700

-33,300

+138,100

+1,400

t Elevation at 12 p.m.
SPOKANE RIVER BASIN

Spokane River near Post Falls, Idaho 

(Formerly published as Spokane River at Post Falls)

283

..., ... _ W., 1 mile downstream from power plant of Washington Water Power Co., _^ 

miles downstream from intake of Spokane Valley Farms Co.'s canal, and l| miles southwest of Post Falls. Datum of gage is 2,000.00 feet above sea level, referenced to same 

datum as gage on Coeur d'Alene Lake at Coeur d'Alene (see preceding page). Prior to 

Nov. 16, 1949, water-stage recorder at site 0.8 mile upstream at same datum.

Drainage area.--3.840 square miles (revised); about 1 square mile less, at former site.

Records available.--January 1913 to September 1950.

Average discharge. River only, 37 years, 5,946 second-feet; river, Spokane Valley Farms 

Co.'s canal, and Rathdruiu Prairie Canal, 37 years, 6,033 second-feet.

Extremes.--Maximum discharge during year, 30 ,.700 second-feet May 19 (gage height,. 71.96 

feet); minimum, 142 second-feet Sept. 12, 13 (gage height, 55. "2 feet).

1913-50: Maximum discharge, 50,100 second-feet when recorder was not operating Dec. 

25, 1933 (determined from unpublished records collected by Washington Water Power Co. 

for station at Liberty Bridge); minimum daily, 130 second-feet Aug. 23 to Sept, 1, 1949.

Remarks.--Records good. Spokane Valley Farms Co.'s canal (see p. ) and Rathdrum Prairie 

Canal (see p. ) divert water above gage for irrigation. Flow partly regulated by 

Coeur d'Alene Lake (see preceding page).

Cooperation.--Gage-height record and five discharge measurements furnished by Washington 

Water Power Co.

Rating tables, water year 1949-5O (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Nov. 15 Nov. 16 to Sept. 30

64.3

64.4

64.6

64.9

65.2

155

174

221

314

440

65.8

66.4

67.0

67.6

68.3

760 

1,190 

1,720 

2,380 

3.36C

136

166

275

415

665

57.0

58.0

59.0

60.0 ei.o

1,210

2,120

3,150

4,330

5,860

63.0

66.0

69.0

72.0

9,400

15,700

23,000

30,800

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25 

26

27 

28 

29 

30 

31

Oct.

525 

525 

590 

304 

1,350

1,330 

1,320 

1,330 

1,330 

1,530

2,070 

1,510 

1,470

822 

652

652 

422

292 

254 

260

283 

161 

161 

262 

250

2E8 

234 

1,240 

1,870 

1,690 

1,720

Nov.

1,960 

1,980 

1,940 

1,960 

2,020

2,020 

2,110 

2,120 

2,180 

2,070

a2,350 

a3,150 

a2,440 

a3,400 

a3,250

2,380 

2,400 

2,460 

2,400 

2,250

2,520 

2,620 

2,560 

2,240 

2 , 460

1,220 

1,350 

7,070 

7,130 

8,220

Month

Octo 

Move 

Dece

Cal

Janu 

Febr 

Marc 

Apri

Uav

June 

July 

Augu 

Sept

Wat

endar year 1949

h.. .............

St. .............

ember ...........

er year 1949-50

Dec.

8,000 

5,290 

3,270 

3,490 

3,690

4,780 

3,710 

2,130

2,460 

2,440

2,250 

2,480 

3,060 

3,240 

3,110

3,150 

3,480 

5,480 

3,490

3,500

3 , 500 

3,520 

3,510 

2,570 

2,530

1.60C 

2,730 

3,520 

3,550 

3,55C 

3,550

Jan.

3,550 

3 550 

3,610 

3,450 

a3,400

a3 , 400 

3,380 

3 , 600 

3,580 

3,560

3,560 

3,610 

3,630 

3,030 

3,600

3 , 660 

3,710 

3,730 

3,710 

3,710

5,720 

4.900 

9,840 

9,950 

9,780

7,560 

33,750 

a3,780 

a3,800 

a3,850 

a3,850

Feb.

a4,750 

5,650 

5,670 

5,640 

5,540

6,120 

6,640 

6,610 

8,520 

6,440

6,350 

6,230 

6,120 

5,720 

5,280

4,800 

4,210 

4,100

5,950 

4,830

5,400 

6,130 

6,570 

7,480 

9,700

11,800 

13,200 

14,100

Mar.

14,400 

14,400 

14,300 

314,400

a!6,200

a!7,400 

a!9,OOO 

13,600 

19,600 

19,300

18,600 

17,500 

17,000 

16,200 

15,300

14,700 

15,000 

16,800 

18,500 

19,400

19,60O 

19,400 

19,200 

18,8OO 

18,300

18,OOO 

17,300 

16,600 

15,800 

15,100 

14,400

Observed

Discharge in 

second-feet

Maximum

2,070 

8,220 

3,000

33,600

9,950 

14,100 

19,600 

23,900 

30,400 

26,500 

17,600 

1,820 

1,160

30,400

Minimum

161 

1,220 

1,FOO

130

3,580 

3,950 

14,300 

14 , 200 

17,500 

18,100 

305 

45 O 

148

148

Mean

879 

2,809 

3,375

6,636

4,400 

6,627 

17,110 

19,750 

23,910 

22,710 

6,311 

1,066 

39G

9,134

Runoff 

in 

acre-feet

54,02C 

167, 20C 

207,500

4,304,71C

270.60C 

368, OOC 

1,052,OOC 

1,175, OOC 

1,470, OOC 

1,351, OOC 

388, 06C 

65,52C 

23,59C

6,592,49C

Apr.

14,20o 

15 , 400 

17,200 

18,200 

18,400

18,60O 

18,300 

18,100 

18,OOO 

17,700

17,500 

17,400 

17,500 

18,000 

18,800

19,400 

19,900 

20,800 

21,7UO 

22,300

22,600 

23,000 

23,600 

23,9OO 

23,600

23,000 

22,400 

21,600 

20,9UO 

20,300

Dive 

Thr

Valley 

Co. ' s 

and Ha 

Prairi 

(acre

May

19,700 

19,500 

19,300 

19,100 

18,800

18,600 

18,300 

17,900 

17,700 

17,500

17,500 

18,000 

19.4OO

21,600 

24,200

P6,900 

23,800 

29,900 

30,400 

30,200

29,300 

28 , 400 

27,900

23,100 

28,200

28,000 

27,800 

27,700 

27,700 

27,600 

27,200

rsion

3 Ugh

kane 

Farms 

canal 

thdrum 

e Canal 

-feet)

2

O 

0

77,663

0 

6 

50 

375 

9,350 

14,790 

2O, 280 

20,010 

9,400

74,P43

June

26,500 

26,000 

25,700 

25,300 

25,100

25.OOO 

25 , OOO 

25,000 

24,400 

23,500

22,600 

22,000 

22,000 

22,200 

22,600

22,800 

22,900 

23,000 

22,900 

22,600

22,300

22,000 

21,800 

21,200 

20,800

20,300 

19,700 

19,200 

18, 700 

18,100

July

17,600 

17,100 

16,500 

16,000 

15,200

14,500 

14,000 

13,200 

12,600 

11,900

11,300 

8,180 

4,440 

1,220 

380

313 

327 

305 

1,080 

2,380

2.6OO 

2,630 

360 

1,500 

1,090

1,190 

1,230 

1,270

1,260 

1,610 

1,880

Aug.

1,820 

1,750 

1,680 

1,380 

1,330

1,210 

1,310 

1,080 

1,07C 

1,200

1,210 

1,240 

1,250 

1,220 

1,110

1,110

1,010 

925 

802 

450

580 

632 

1,010 

1,240 

772

758 

758 

758 

758 

810 

802

Sept.

780 

549 

461 

525

525

509 

497 

488 

166 

163

326 

302 

151 

148 

154

176 

169 

169 

154 

154

154 

154

151 

151 

550

990 

1,160 

913 

553 

551

Adjusted for diversion

Runoff 

in 

acre-feet

54,022 

167,200 

207,500

4,882,373

270,600 

368,006 

1,O52,O30 

1,175,375 

1,479,350 

1,365,790 

408,340 

85,530 

32,990

6,666,733

Discharge in 

second-feet

Mean

879 

2,809 

3,375

6,743

4,400 

6,627 

17,110 

19,756 

24,052 

22,958 

6,641 

1,392 

554

9,237

Per 

square 

mile

_

1.76

1

2.41

Runoff

inches

:

23.84

1

32.55

a No gage-height record; discharge computed on ba 

ords for auxiliary gage 0.8 mile upstream.

iis of records for station at Gree-iacres and rec-
284 SPOKANE RIVER BASIN

Spokane River at Greenacres, Wash.

Location (revised) . Water-stage recorder, lat. 47°40'45", long. 117°09'25", on east line

 of sec. 7, T. 25 N., R. 45 E., at bridge on Barker Road, half a mile rorth of Greenacres.

Records available. March 1948 to September 1950.

Extremes.--Maximum discharge during year, 31,600 second-feet May 19 (gage height, 9.78

 feet); minimum, 94 second-feet Sept. 12 (gage height, 1.18 feet).

1948-50: Maximum discharge not determined, probably occurred May 30, 1948, during 

period of no gage-height record; minimum, 52 second-feet Aug. 26, 27, 1949 (gage height, 

1.04 feet).

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

Some diversions above station for irrigation. Flow partly regulated ty Coeur d'Alene 

Lake at Post Falls, Idaho.

Rating tables, vater year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to May 31 June 1 to Sept. 30

1.2 

1.4 

1.6 

1.9 

2.2

110

215

335

535

780

2.6 

3.0 

3.5 

4.0 

5.0

1,240

1,800

2,700

3,790

6,480

6.0 

7.0 

8.0 

9.7

9,850

14,200

19,600

30,800

1.2 

1.4 

1.6 

1.9

100

180

290

495

2.2 

2.6 

3.0 

3.5

750

1,180

1,710

2,550

4.0 

5.0 

6.0

3,560

6,270

9,850

Note. Same as preceding table above 6.0 

feet.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

507 

514 

535 

780 

1,240

1,300 

1,290 

1,300 

1,290 

1,450

2,070 

1,560 

1,500 

985 

658

650 

515 

317 

278 

258

315 

200 

152 

194 

260

228 

220 

1,030 

1,860 

1,700 

1,650

Nov.

1,960 

1,960 

1,960 

1,980 

2,010

2,060 

2,180 

2,190 

2,180 

2,390

2,320 

3,230 

2,450 

3,520 

3,340

2,300 

2,430 

2,460 

2,440 

2,390

2,400 

2,740 

2,520 

2,500 

2,350

1,580 

874 

6,640 

7,040 

7,840

Dec.

7,840 

5,540 

3,370 

3,630 

3,700

4,910 

4,200 

2,120 

2,500 

2,510

2,000 

2,520 

3,110 

3,300 

3,180

3,220 

3,560 

3,560 

3,560 

3,560

3,560 

3,560 

3,560 

2,650 

2,670

1,860 

2,560 

3,680 

3,680 

3,680 

3,680

Jan.

3,680 

3,680 

3,680 

3,730 

3,790

3,680 

3,790 

3,790 

3,680 

3,680

3,680 

3,790 

3,790 

3,790 

3,790

3,790 

3,860 

3,860 

4,100 

4,200

3,950 

4,200 

9,290 

9,600 

9,200

9,000 

4,500 

4,000 

4,000 

4,000 

4,000

Feb.

4,400 

5,800 

5,600 

5,500 

5,500

5,700 

6,200 

6,200 

6,200 

6,200

6,100 

5,740 

5,740 

5,320 

5,040

4,770 

4,260 

4,260 

4,260 

4,770

5,600 

6,040 

6,630 

7,240 

9,170

11,500 

12,800 

13,700

Month

Octo 

Nove 

Dece

Ca

Janu. 

Febri 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 ...............

Mar.

13,700 

13,700 

13,700 

14,200 

15,200

16,800 

18,400 

19,000 

19,000 

18,400

17,800 

17,300 

16,200 

15,200 

14,700

14,200 

14,200 

16,200 

17,800 

18,400

19,000 

19,000 

18,400 

18,400 

17,800

17,300 

16,800 

16,200 

15,200 

14,700 

14,200

Apr.

13,700 

14,700 

16,800 

17,800 

17,800

18,400 

17,800 

17,800 

17,800 

17,300

17,300 

16,800 

17,300 

17,800 

18,400

19,000 

19,600 

20,700 

21,400 

22,000

22,600 

23,200 

23,900 

23,900 

23,900

23,200 

22,600 

21,400 

20,700 

20,100

Secondfoot-days

26,806 

84,144 

107,030

2,423,259

141,630 

180,240 

511,100 

585,700 

744,900 

679,400 

192,711 

31,024 

10,483

3,295,168

May

19,600 

19,600 

19,000 

19,000 

18,400

18,400 

17,800 

17,800 

17,300 

17,300

17,300 

17,800 

19,000 

21,400 

23,900

27,300 

29,400 

30,100 

30,800 

30,800

30,100 

28,700 

28,700 

28,700 

28,700

28,700 

28,000 

28,000 

28,000 

28,000 

27,300

Maximum

2,070 

7,840 

7,840

33,800

9,600 

13,700 

19,000 

23,900 

30,800 

27,300 

17,300 

1,770 

1,030

30,800

June

27,300 

25,900 

25,900 

25,200 

25,200

25,200 

25,200 

25,200 

24 , 600 

23,200

22,600 

22,000 

22,000 

22,000 

22,600

22,600 

22,600 

23,200 

22,600 

22,600

22,000 

22,000 

21,400 

20,700 

20,700

20,100 

19,600 

19,000 

18,400 

17,800

Minimum

July

17,300 

16,800 

16,200 

15,700 

15,200

14,200 

13,700 

13,200 

12,300 

11,900

11,500 

8,390 

4,770 

1,360 

303

740 

266 

242 

728 

2,130

2,560 

2,600 

792 

1,180 

1,010

1,000 

1,180 

1,120 

1,130 

1,390 

1,820

152 

874 

1,860

55

3,680 

4,260 

13,700 

13,700 

17,300 

17,800 

242 

342 

97

97

Aug.

1,770 

1,680 

1,750 

1,300 

1,290

1,020 

1,300 

1,000 

972 

1,050

1,110 

1,110 

1,110 

1,170 

1,060

1,030 

930 

870 

750 

527

342 

575 

840 

1,230 

810

732 

732 

741 

732 

750 

741

Mean

865 

2,805 

3,453

6,639

4,569 

6,437 

16,480 

19,520 

24,030 

22,650 

6,216 

1,001 

349

9,028

Sept.

741 

536 

471 

414 

516

474 

474 

454 

206 

120

292 

258 

112 

100 

100

136 

116 

128 

104 

104

108 

108 

100 

97 

382

864 

1,030 

864 

576 

498

Runoff in 

acre-feet

53,170 

166,900 

212,300

4,807,000

280,900 

357,500 

1,014,000 

1,162,000 

1,477,000 

1,348,000 

382 , 200 

61,540 

20,790

6,536,000

Note. No gage-height record Jan. 3-7, 12-22, Jan. 24 to Feb. 11; discharge computed on basis of 

records for station below Trent Bridge, near Spokane.
SPOKANE RIVER BASIN

Spokane River below Trent Bridge, near Spokane, Wash.

Location.--Water-stage recorder, lat. 47°41'50", long. 117°14'35", In NE£ sec. 4, T. 25 

M., H. 44 E., half a mile downstream from Trent Bridge and 9 miles east of Spokane.

Records available.--January 1948 to September 1950.

Extremes.--Maximum discharge during year, 31,800 second-feet May 20 (gage height, 16.39 

rest); minimum, 615 second-feet Oct. 24 (gage height, 4.23 feet).

1948-50: Maximum discharge, 40,100 second-feet May 30 or 31, 1948 (gage height, 

18.5 feet, from high-water mark on gage); minimum, that of Oct. 24, 1949.

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

water for irrigation diverted above station by Spokane Valley Farms Co.

Rating table, water year 1949-5C (gage height., In feet, 

and discharge, in second-feet)

4.2 600 6.5 3,040 11.0 13,100 

4.4 700 7.0 3,830 12.0 16,000 

4.7 890 7.5 4,700 13.0 19,300 

5.0 1,130 8.0 5,650 14.0 22,800 

5.5 1,680 9.0 7,800 15.0 26,400 

6.0 2,310 10.0 10,300 16.3 31,400

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

925 

932 

932 

,150 

,620

,680 

,680 

,680 

,680 

,740

,280 

,900 

,890 

,520 

,140

1,090 

945 

770 

705 

720

715 

725 

620 

615 

715

690 

655 

1,170 

2,120 

2,000 

1,920

Nov.

2,260 

2,260 

2,240 

2,260 

2,340

2,360 

2,440 

2,500 

2,380 

2,640

2,520 

3,380 

2,680 

3,650 

3,540

2,560 

2,680 

2,700 

2,720 

2,590

2,640 

2,920 

2,710 

2,680 

2,580

2,040 

1,280 

6,010 

6,910 

7,630

Dec.

7,840 

5,630 

3,640 

3,870 

3,800

4,840 

4,450 

2,500 

2,860 

2,780

2,200 

2,750 

3,220 

3,490 

3,360

3,410 

3,750 

3,750 

3,750 

3,750

3,750 

3,750 

3,750 

2,920 

2,900

2,210 

2,740 

3,750 

3,750 

3,750 

3,750

Jan.

3,750 

3,750 

3,830 

3,830 

3,750

3,830 

3,830 

3,830 

3,750 

3,750

3,750 

3,830 

3,830 

3,830 

3,830

3,830 

3,920 

3,920 

4,170 

4,340

4,080 

4,300 

9,250 

9,760 

a9,250

a9 , 100 

a4,600 

a4,100 

a4,100 

a4,100 

a4,100

Feb.

a4,600 

6,050 

5,850

5,650 

5,650

5,850 

6,470 

6,470 

6,470 

6,470

6,260 

6,260 

6,050 

5,850 

5,450

5,070 

4,520 

4,430 

4,340 

4,880

5,650 

6,050 

6,470 

7,340 

9,330

11,600 

12,800 

13,600

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wfl

lendar year 1949

1............ ...........................

ter year 1949-50 .......................

Mar.

13,900 

14,200 

13,900 

14,200

15,400

17,000 

18,300 

18,900 

19,300 

18,900

18,300 

17,600 

16,700 

16,000 

15,100

14,500 

14,800 

16,400 

18,300 

18,900

19,300 

19,300 

19,300 

18,900 

18,300

18,000 

17,300 

16,700 16,000' 

15,100 

14,500

Apr. May

14, 

15, 

17 

18,

18

18, 

18, 

18 

18, 

18

17, 

17, 

17, 

18,

18,

19, 

20, 

20,

21, 

22,

22, 

23, 

23, 

24, 

24,

23, 

22, 

21, 

21, 

20,

Secondfoot-days

38,924 

90,100 

112,660

2,549,011

143,890 

185,480 

523,300 

595,800 

753,300 

690,100 

217,280 

52,140 

27,622

3. A?in.59K

200 

400 

000 

300 

600

600 

300 

300 

000 

000

600 

300 

600 

000 

600

300 

000 

600 

700 

400

800 

100 

800 

200 

200

500 

800 

700 

300 

600

20,000 

19,600 

19,300 

19,300 

18,900

18,600 

18,300 

18,000 

17,600 

17.600

17,600 

18,000 

19,300 

21,300 

24,200

26,800 

29,100 

31,000 

31,400 

31,400

30,200 

29,100 

28,700 

28,700 

29,100

28,700 

28,700 

28,300 

28,300 

28,300 

27,900

Maximum

2,280 

7,630 

7,840

33,700

9,760 

13 , 600 

19 , 300 

24,200 

31,400 

27,200 

18,000 

2,520 

1,500

31 .Ann

June

27,200 

26,400 

26,000 

25,700 

25,300

25,300 

25,300 

25,300 

24,900 

23,800

23,100 

22,400 

22,400 

22,400 

22,800

23,100 

23,100 

23,100 

23,100 

22,800

22,800 

22,400 

22,000 

21,300 

21,000

20, £00 

20,000 

19,300 

18,900 

18,300

July Aug.

18,000 2,520 

17,300 2,440 

16,700 2,520 

16,000 2,100 

15,400 2,080

14,800 1,800 

14,200 2,050 

13,600 1,740 

13,100 1,740 

12,500 1,740

11,600 1,800 

9,370 1,800 

6,030- 1,800 

2,700 1,860 

1,620 1,740

1,860 1,680 

1,420 1,620 

1,340 1,560 

1,640 1,410 

2,940 1,250

3,360 1,000 

3,390 1,210 

1,920 1,440 

2,010 1,800 

1,940 1,500

1,860 1,330 

2,040 1,320 

1,990 1,320 

1,990 1,320 

2,120 1,330 

2,540 1,320

Minimum Mean

615 1,256 

1,280 3,003 

2,200 3,634

615 6,984

3,750 4,642 

4,340 6,624 

13,900 16,880 

14,200 19,860 

17,600 24,300 

18,300 23,000 

1,340 7,009 

1,000 1,682 

685 921

R1R 3 3BQ

Sept.

1,320 

1,130 

1,080 

1,020 

1,080

1,040 

1,040 

1,040 

897 

760

834 

848 

760 

724 

712

730 

718 

718 

706 

700

695 

690 

685 

685 

808

1,260 

1,500 

1,340 

1,110 

992

Runoff In 

acre-feet

77,200 

178,700 

223,500

5,056,000

285,400 

367,900 

1,038,000 

1,182,000 

1,494,000 

1,369,000 

431,000 

103,400 

54,790

a No gage-height record: discharge computed on basis of records for nearby stations.
Spokane Rive 3 .lew Green Street, at Spokane, Wash.

age recorder, lat. 47°40'tO", long. 117°22'20", In Wf s°r . 10, T 25 

Spokane, 5+ Piles upstream from Latah Creek.

Records available.--December 1948 to September ia50.

Extremes.--Maximum discharge during year, 22,600 second-fe°t May SO (jratre height 1° 91 

feet}; minimum, 961 second-feet Sept. 14 (gage height, 4.39 feet)

1948-50: Maximum discharge, 34,400 second-feet May 16, 1949 (ga^ height 13 S4 

feet); minimum, 702 second-feet Sept.. 10, 1949 (gage height, 4.09'feet); minimum'daily, 

916 second-feet Sept. 6, 25, 1949.

Rating table

and discharge, In se

1949-50 (gage height, In feet,

nd-feet)

4.4 970 6.5 3,790 12.0 15,200 

4.7 1,280 7.0 4,590 14.0 20,800 

5.0 1,650 8.0 6,300 16.0 26,700 

5.5 2,3EO 9.0 8,170 18.0 32,900 

6.0 3,030 10.0 10,200

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,240 

1,180 

1,240 

1,450 

1,840

1,910 

1,910 

1,980 

1,980 

1,980

2,580 

2,250 

2,250 

1,980 

1 , 44u

1,480 

1,380 

1,220 

1,050 

1,010

1,000 

1,090 

980 

970 

980

980 

980 

1,42O 

2,340 

2,330 

2.160

Nov.

2,520 

2 , 500 

2,550 

2,580 

2 , 600

2,630 

2,690 

P,740 

2,670 

3,010

2,830 

3,640 

3,060 

3,900 

3,790

2,960 

2,990 

3,060 

3,040 

2,950

3,010 

3,300 

3,050 

3.060 

2,970

2,580 

1,750 

5,690 

6,850 

7,480

Dec.

7.930 

6,200 

4,020 

4,140 

4,140

5,110 

4,770 

3,020 

3,280 

3,150

2,670 

3,120 

3,670 

3,850 

3,760

3,840 

4,090 

4,080 

4,080 

4,070

4,100 

4,110 

4,150 

3,310 

3,260

2,750 

3.090 

4,140 

4,200 

4,180 

4,120

Jan.

4, 200 

4,160 

4,210 

4,250 

4,200

4,240 

4,280 

4,160 

4,030 

4,120

4,080 

4,080 

4,160 

4,140 

4,140

4,180 

4,210 

4,230 

4,310 

4,230

4, 230 

4,260 

8,620 

9,610 

9,460

9,E9C> 

4,800 

4,600 

4,600 

4,600 

4,700

Feb.

5,100 

6,400 

6,200 

6,000 

6,000

6,400 

6,800 

6,800 

6,dGO 

6 , 800

6 , 600 

6,600 

6,400 

6,300 

6,000

5,800 

5,100 

5,100 

4,9CO 

5,200

6,000 

6,300 

6,800 

7,600 

8,970

11,200 

12,600 

13,600

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

MRV

June 

July 

Augu 

Sept

Wa

lendar year 1943 

ary

1...... .................................

st ......................................

ter year 19 49 50 .......................

Mar.

14,200 

14,200 

14,200 

14,400 

15,700

17,400 

19,100 

19,600 

19,900 

19,600

19,100 

16,500 

17,400 

16,600 

15,700

15,500 

15,200 

17,100 

18,800 

19,900

20,200 

20,200 

19,900 

19.EOO 

19,100

18,800 

18,200 

17,400 

16,600 

15,700 

15,200

Apr.

14

15 

18 

19 

19

19 

19 

19

18 

18

18 

IB 

18 

18 

19

20 

20 

21 

2

3 

4 

4 

5 

4

4 

3

22

21

Secondfoot-days

48,580 

98,460 

124,400

2,704,145

152 

194 

543 

620 

781 

734 

239 

62

38

380 

370 

000

300 

600 

700 

540 

680 

150

3,633,160

700 

700 

000 

100 

400

400 

400 

100 

BOO 

500

500 

200 

200 

800 

600

200 

800 

700 

500 

100

700 

000 

600 

200 

900

300

700 

800 

000 

400

~

May

20,800 

20,500 

20,200 

20,200 

19,900

19,600 

19,400 

16 . 800 

16,500 

18,200

16,200 

18,800 

20,200 

22,200 

24,900

27,300 

29,800 

31,000 

32,000 

32,000

31,400 

30,400 

29,800 

29,800 

30,100

30,100 

29,800 

29 , 500 

29,500 

29,500 

29,200

Maximum

2,580 

7,480 

7.930

34,100

9,610 

13,600 

20 , 200 

25,200 

32,000 

28,600 

19,100 

2,930 

1,780

32,000

June

28,600 

27,900 

27,300 

27,000 

26,700

26,700 

26,700 

26,700 

26,400 

25,500

24, 600 

23,700 

23,700 

24,000 

24, 300

24, 600 

24,900 

24,900 

24,600 

24, 600

24,300 

23,700 

23,700 

23,100 

22,500

22,000 

21,400 

20,800 

20,200 

19,600

July

19,100 

18,500 

18,000 

17,400

ie,eoo

16,000 

15,200 

14,700 

13,900

13,100

I2,eoo

10,200 

6,E20 

3, £50 

2,390

2, £30 

2,C40 

1,910 

2,110 

3,290

3,flO 

3, £20 

2,590 

2,310 

2,420

2,280 

2,430 

2,400 

2,400 

2,E40 

2,SOO

Aug.

2,870 

2,740 

2,930 

2,400 

2,450

2,150 

2,440 

2,120 

2,080 

2,060

2,120 

2,130 

2,120 

2,180 

2,090

2,040 

1,980 

1,840 

1,780 

1,600

1,300 

1,580 

1,720 

2,010 

1,910

1,720 

1,720 

1,650

1,650 

1,650 

1,650

Minimum Mean

970 1,567 

1,750 3,282 

2,670 4,013

916 7,409

4,030 4,915 

4,900 6,942 

14,200 17,520 

14,700 20,680 

18,200 25,210 

19,600 24,490 

1,910 7,727 

1,300 2,022 

1,010 1,272

970 9,968

Sept.

1,650 

1,510 

1,420 

1,400 

1,420

1,410 

1,390 

1,390 

1,320 

1,060

1,160 

1,200 

1,180 

1,070 

1,070

1,080

1,080 

1,080 

1,070 

1,070

1,040 

1.040 

1,010 

1,020 

1,140

1,580 

1,780 

1,610 

1,550 

1,350

Runoff in 

acre-feet

96,360 

195,300 

246,700

5,363,000

302,200 

385,500 

1,077,000 

1,230,000 

1,550,000 

1,457,000 

475,100 

124,300 

75,670

7,215,000

Note. No gage-height record Ja 

stations.

27 to Feb. 24; discharge computed on basis of records for nearby
SPOKANE RIVER BASIN

Spokane River at Spokane, Wash.

Location.--Water-stage recorder, lat. 47°39 1 30", long. 117°26'50",

E., at Cochran Street in Spokane, half a mile upstream from Latah Creek.

ge is about 1,700 feet above mean level, subject to correction to datum of

Drainage area. --4 ,350 square miles.

Records available. --April 1891 to September 1950.

Average discharge. 59 years, 6,779 second-feet.

Extremes. Maximum discharge during year, 32,700 second-feet May 20 (gage height, 26.89

; minimum, 210 second-feet Oct. 16, 17 (gage h-ight, 16.20 f

864 secund-feet Oct. 23.

1891-1950: Maximum discharge, 49,000 second-feet (estimated) May 31, 1894 (se

Water-supply Paper 532); minimum, 156 second-feet Nov. 14, 1948 (gage height, 16.18

feet); minimum daily, 740 second-feet Sept. 7, 1947.

Remarks . Records excellent. Some diversion above station for irrigation. Flow partly 

regulated by Coeur d'Alene Lake (see p. 282) and by pondage at Spokane.

Revisions (water years). W 532: 1891-1904.

Rating table, water year 1949-50 

and discharge, In sec

'gage height, in feet, 

ind-feet)

17.2

17.5

880

1,190

1,760

2,490

3,330

19.5

20.0

20.5

21.0

22.0

4,290

5,380

6,590

7,930

11,000

23.0

24.0

25.0

26.0

27.0

14,600

18,700

23,200

28,100

33,200

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,250 

1,170 

1,160 

1,390 

1,710

1,930 

1,810 

1,820 

1,880 

1,950

2,340 

2,140 

2,150 

2,020 

1,440

1,390 

1,300 

1,2SO 

1,120 

1,030

1,010 

1,080 

864 

1,000 

1.C40

1,000 

1 , 040 

l,2fiO 

2,220 

2,220 

2,220

Nov.

2,380 

2,460 

2,360 

2,470 

2,590

2,640 

2,540

 h. , eoo

2,640 

2,940

2,800 

3,540 

3,010 

3,770 

3,780

2,92C 

2,900 

5,000 

3,030 

2,840

3,020 

3,210 

3,100 

3,040 

2,990

2,840 

1,9CO 

5,440 

6,930 

7,4SO

Dec.

8,050 

6,210 

3,960 

4,020 

4, 100

4,980 

4, 720 

2,950 

3,200 

3,070

2,670 

3,040 

3,540 

3,740 

3,710

3,700 

4,040 

3,940

3,9uO 

3,950

4,030 

4 , 000 

4,100 

3,320

3,160

2,880 

2,850 

4,020 

4,040 

4,070 

4,000

Jan.

4,090 

4,010 

4,OOO 

4,180 

4,010

4,170 

4, ICO 

4,120 

4,140 

4,060

4,190 

4,200 

4,240 

4,200

4,260

4,260 

4,300 

4,360 

4,380 

4,300

4,380 

4,390

8,460 

9,820 

9,680

9,120 

4,720 

4,510 

4,500 

4,440 

4,510

Feb.

4,820 

5,950 

5,970 

6,020 

5,920

6,180 

6,770 

6,700 

6,680 

6,680

6,660 

6,540 

6,470 

6,260 

5,840

5,610 

5,000 

4,940 

4,700 

5,070

5,820 

6,200 

6,860 

7,300 

8,820

11,400 

12,700 

13,300

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ember. ..................................

ter year 1949-50 .......................

Mar.

14, 200 

14,600 

14,200 

14,600 

15,800

17,400 

18,700 

19,600 

20,000 

19,600

19,200 

18,300 

17,400 

16,600 

15,800

15,400 

15,400 

17,000 

18,700 

19,600

£0,000 

20,000 

20,000 

19,600 

19,200

18,700 

17,900 

17,400 

16,600 

15,800 

15,000

Apr.

14,600 

15,800 

17,400 

18,700 

19,200

19,600 

19,200 

19,200 

18,700 

18,700

18,300 

18,300 

18,300 

18,700 

19,600

20,000 

20,500 

2 1 , 400 

22,300 

23,200

23,700 

24,200 

24,700 

25,100 

25,100

24,700 

23,700

23,200 

22,300 

21,800

Secondfoot-clays

47,244 

97,140 

121,960

2,695,183

152,120 

191,680 

542,300 

620,200 

782,900 

728,500 

238,890 

62,780 

38,400

3,624,114

May

20,900 

20,500 

20,500 

20,500 

20,000

19,600 

19,600 

19,200 

16,700 

16,300

18,300 

18,700 

20,000 

21,800 

24,700

27,600 

30, 100 

31,100 

32,100 

32,100

31,100 

30,100 

29,600 

30,100 

30,100

30,100 

29 , 600 

29,600 

29,600 

29,600 

29,100

Maximum

2,340 

7,460 

0,050

34,200

9,B20 

13,600 

20,000 

25,100 

32.100 

28 . 600 

18,700 

2,800 

1,780

32,100

June

28,600 

27,600 

27,600 

27,100 

26,600

26,600 

26,600 

26,600 

26,100 

25,100

24,700 

23,700 

23,700 

23,700 

24,200

24, 200 

24,200 

24,200 

24,200 

24, 200

23 . 700 

23,700 

23,200 

22,800 

22,300

21,800 

21,400 

20,500 

20,000 

19,600

July Aug.

18,700 

18,300 

17,900 

17,000 

16,200

15,800 

15,400 

14,600 

13,800 

13,000

12,600 

10,400 

7,260 

3,620 

2,740

2,580 

2,040 

2,020 

2,140 

3,130

3,820 

3,740 

2,820 

2,250 

2,380

2,300 

2,340 

2,350 

2,310 

2,420 

2,880

Minimum

864 

1,900 

2,670

855

4,000 

4,700

14,200 

14,600 

18,300 

19,600 

2,020 

1,370 

970

664

2,300 

2,660 

2,790 

2,360 

2,460

2,120 

2,400 

2,300 

,000 

,120

,190

,050 

,050 

,260 

,190

,050 

,84C 

,910 

,780 

,650

,370 

,590 

,840 

,050 

,980

,590 

,780 

,650 

,650 

,650 

,650

Mean

1,524 

3,238 

3,934

7,384

4,907 

6,846 

17,490 

20,570

25,250 

24,280 

7,706 

2 , 025 

1,280

9,929

Sept.

1,780 

1,560 

1,460 

1,420 

1,300

1,360 

1,450 

1,360 

1,340 

1,120

1,170 

1,170 

1,320 

1,090 

1,070

1,080 

1,110 

1,070 

1,060 

.,090

i!o70 

1,050 

970 

1,160

1,410

1,720 

1,780 

1,450 

1 , 400

Runoff In 

acre-feet

93,710 

192,700 

241,900

5,346,000

301,700

360,200 

1,076,000 

1,230,000 

1,553,000 

1,445,000 

473,800 

124,500 

76,170

7,189,000
286 SPOKANE RIVER BASIN

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

Location. Water-stage recorder, lat. 47°43'10", long. 117 0 30'00", in SE^ sec. 28, T. 26 

N., K. 42 E., 5 miles northwest of Spokane.

Records available. November 1948 to September 1950.

Extremes. Maximum discharge during year, 32,800 second-feet May 20 (gage height, 14.32 

feet); minimum, 422 second-feet Oct. 24 (gage height, 3.76 feet); minimum daily, 1,120 

second-feet Oct. 23.

1948-50: Maximum discharge, 34,300 second-feet May 16, 1949 (gage height, 14.62 

feet); minimum, 302 second-feet Sept. 9, 11, 12, 1949 (gage height, 3.57 feet); minimum 

daily, 1,090 second-feet Sept. 25, 1949.

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

Water diverted for irrigation above station. Plow partly regulated by Coeur d'Alene 

Lake (see p. 282) and by pondage at Spokane.

Fating table, water year 1949-50 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used July 17 to Sept. 30}

5.0 

5.5 

6.0

1,060 

1.2BO 

1,640 

2,320 

3,090

3,960

4,920

6,010

7,220

10,100

10.0

11.0

12.0

13.0

14.2

13,600

17,700

22,100

26,700

32,300

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,450

1,330 

1,410 

1,600 

1,820

2,100 

2,020 

2,010

2,100 

2,130

2,550 

2,330 

2,340 

2,270 

2,640

1,700 

1,580 

1,560 

1,270 

1,2BO

1,240 

1,310 

1,120 

1,240 

1,230

1,220 

1,190 

1,370 

2,260 

2,290 

2,300

Nov.

2,590 

2,620 

2,540 

2,620 

2,750

2,820 

2,730 

2,780 

2,790 

3,040

2,970 

3,650 

3,180 

3,910

3,920

3,100 

3,070 

3,120 

3,160 

3,080

3,140 

3,370

3,200 

3,200 

3,080

3,070

2,190 

4,860 

6,770 

7,250

Dec.

8,080 

6,380

4,220 

4,060

4,220

4,960 

5,000 

3,130 

3,340 

3,250

2,920 

3,180 

3,710 

3,870 

3,820

3,830 

4,150 

4,110 

4,010 

4,100

4,140 

4,120 

4,210 

3,490 

3,380

3,210 

2,940 

4,200 

4,190 

4,240 

4,280

Jan.

4,270 

4,150 

4,280 

4,270 

4,200

4,200 

4,240 

4,250 

4,250 

4,190

4,240 

4,420 

4,320 

4,290 

4,340

4,280 

4,340 

4,410 

4,420 

4,390

4,450 

4,440 

8,500 

10,300 

9,790

9,460 

4,900 

4,700 

4,600 

4,600 

4,700

Feb.

5,000 

6,100 

6,100 

6,200 

6,100

6,400 

6,820 

6,870 

6,910

6,890

6,800 

6,680 

6,630 

6,420 

6,390

7,480 

7,300 

7,290 

7,030

6,930

7,000 

7,290 

8,700 

10,700 

16,000

18,600 

16,400 

16,000

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-50 .......................

Mar.

15,600 

15,600 

16,400 

18,600 

20,800

20,800 

20,800 

21,200 

21,200 

20,800

20,000 

19,000 

18,000 

17,000 

17,000

16,800 

20,800 

23,000 

2E,100 

21,600

22,100 

2E,100 

21,200 

20,800 

20,300

19,400 

19,000 

18,600 

17,700 

16,800 

16,000

Apr.

16,000 

16,800 

19,000 

19,900 

19,900

19,900 

19,900 

19,400 

19,400 

19,000

19,000 

18,600 

18,600 

19,400 

19,900

20,300 

20,800 

21,600 

23,000 

23,400

23,900 

24,400 

24,800 

25,300

25,300

24,800 

23,900 

23,000 

22,600 

22,100

Secondfoot-days

54,260 

100,570 

126,740

2,837,960

156,190 

233,030 

601,100 

633,900 

790,100 

734,000 

246,370 

70,160 

44,800

3,791,220

May

21,200 

21,200 

20,800 

20,800 

20,300

20,300 

19,900 

19,400 

19,000 

18,600

18,600 

19,000 

20,300 

22,100 

24,800

27,600 

20,000 

31,400 

32,300 

32,300

31,400 

30,400 

30,000 

30,000 

30,400

30,000 

30,000 

29,500 

30,000 

29,500 

29,000

Maximum

2,640 

7,250 

8,080

33,800

10,300 

18,600 

23,000

25,300 

32,300 

28,600 

18,800 

3,090 

1,960

32,300

June

28,600 

27,600 

27,600 

27,200 

27,200

26,700 

26,700 

26,700 

26,200 

25,800

24,800 

23,800 

23,800 

23,900 

24,700

24,600 

24,500 

24,400 

24,500 

24,400

23,900 

23,800 

23,300 

22,900 

22,400

22,000 

21,600 

20,600 

20,100 

19,700

July

18,800 

18,400 

18,000

17,100 

16,300

15,800 

15,400 

14,600 

13,800 

13,100

12,700 

10,500 

7,500 

4,000 

3,150

2,900 

2,460 

2,400 

2,520 

3,650

4,070 

4,050 

3,330 

2,520 

2,760

2,680 

2,700 

2,680 

2,640 

2,740 

3,120

Minimum

1,120 

2,190 

2,920

1,090

4,150 

5,000 

15,600 

IB", ODD 

18,600 

19,700 

2,400 

1,620 

1,220

1,120

Aug.

3,090 

2,980

3,030 

2,680 

2,710

2,410 

2,650 

2,560 

2,280 

2,350

2,400 

2,280 

2.310 

2,470 

2,410

2,310 

2,150 

2,150 

2,010 

1,870

1,620 

1,850

2,010 

2,210 

2,210

1,800 

1,980 

1,820 

1,820 

1,900 

1,840

Mean

1,750

3,352 

4,088

7,775

5,038 

8,322 

19,390 

21,130 

25,490 

24,470 

7,947 

2,263 

1,493

10,390

Sept.

1,930 

1,820 

1,630 

1,680 

1,520

,580 

,620 

,520 

,570 

,340

,440 

,400 

,480

,330 

,290

1,290 

1,320 

1,320 

1,280 

1,320

,250 

,320 

,300 

,220 

,330

,580 

,940

,960 

1,640 

1,580

Runoff in 

acre-feet

107,600 

199,500 

251,400

5,629,000

309,800 

462,200 

1,192,000 

1,257,000 

1,567,000 

1,456,000 

488,700 

139,200 

88,860

7,519,000

Note. No gage-height record Jan. 27 to Feb. 6, Mar. 11-15, June 12 to July 16; discharge computed 

on"basis of 1 discharge measurement and records for nearby stations.
SPOKANE RIVER BASIN

Spokane River below Mine-Mile Dam, near Spokane, Wash.

Location. Water-stage recorder, lat. 47°46'50", long. 117°32'40", in SW^NE^ sec. 6, T. 26 

N., R. 42 E., half a mile downstream from Nine-Mile Dam, 1-5- miles upstream from Little 

Spokane River, and 9j miles northwest of Spokane,

Drainage area. 5,220 square miles.

Records available. March 1948 to September 1950.

Extremes.--Maximum discharge during year, 32,400 second-feet May 20 (gage height, 14.74 

I'eet); minimum, 314 second-feet Sept. 3; minimum daily, 861 second-feet Sept. 23.

1948-50: Maximum discharge not determined, occurred about May 24, 1948, during 

period of no gage-height record; minimum, 296 second-feet Sept. 14, 19^8; minimum daily, 

336 second-feet Sept. 19, 1948.

Remarks. Records good. Some diversion for irrigation. Regulation by Coeur d'Alene Lake 

(see p. 282) and by pondage at Spokane and at Nine-Mile Dam.

Rating tables, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Apr. 30 May 1 to Sept. 30

6.5 

7.0 

7.5 

8.0 

9.0

3,650

4,630

5,700

6,850

9,400

10.0

11.0

12.0

13.2

12,400

15,800

19,700

25,000

4.3 

4.6 

5.0 

5.5 

6.0

800

1,040

1,440

2,050

2,790

6.5 

7.0 

7.5 

8.0 

9.0

3,650

4,600

5,630

6,750

9,290

10.0

11.0

12.0

13.0

14.6

12,200

15,600

19,500

23,900

31,900

Note. Same as following 

table below 6.5 feet.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,570 

1,310 

1,660 

1,590 

2,040

2,400 

2,160 

2,370 

2,210 

2,200

2,780 

2,590 

2,170 

2,170 

2,010

1,410 

1,780 

1,600 

1,270 

1,470

1,220 

1,580 

905 

1,170 

1,400

1,240 

1,180 

1,930 

2,230 

2,190 

2,420

Nov.

2,920 

2,400 

2,620 

2,600 

3,090

3,070 

2,630 

2,780 

3,110 

3,230

3,670 

4,480 

3,450 

4,610 

3,730

3,160 

3,090 

3,390 

3,440 

3,330

3,240 

3,620 

3,550 

3,300 

3,320

3,140 

2,460 

4,680 

7,110 

7,610

Dec.

8,710 

7,370 

5,140 

4,600 

4,850

5,050 

5,490 

4,500 

3,430 

3,790

3,410 

3,540 

4,120 

4,270 

3,840

3,840 

4,270 

4,300 

4,490 

4,590

4,040 

4,710 

4,710 

4,210 

3,770

3,270 

3,520 

3,960 

4,590 

4,900 

4,250

Jan.

4,560 

4,660 

4,670 

4,700 

4,450

4,510 

4,560 

4,560 

4,720 

4,690

4,480 

4,590 

4,660 

4,740 

4,670

4,690 

4,780 

4,790 

4,820 

4,740

4,800 

5,230 

7,410 

10,900 

10,200

10,100 

6,110 

5,370 

5,160 

5,160 

5,160

Feb.

5,260 

6,610 

6,610 

6,850 

6,610

6,610 

7,330 

7,580 

7,580 

7,580

7,330 

7,330 

7,330 

7,090 

6,850

7,830 

8,080 

8,080 

7,830 

7,580

7,830 

7,580 

9,130 

10,800 

15,400

19,700 

17,300 

16,500

Month

Goto 

Nove 

Dece

Ca

Janu 

Febri 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

15,800 

15,800 

16,500 

20,500 

21,400

21,400 

20,900 

20,900 

20,900 

20,500

19,700 

18,800 

18,000 

17,300 

16,500

16,900 

20,100 

22,200 

21,400 

20,900

20,900 

20,900 

20,500 

20,100 

19,700

19,200 

18,400 

18,000 

17,300 

16,500 

15,800

Apr.

15,400 

16,100 

17,600 

18,800 

19,200

19,200 

19,200 

18,800 

18,400 

18,400

18,000 

18,000 

18,000 

18,000 

19,200

20,100 

20,900 

21,800 

22,700 

23,100

23,600 

24,100 

25,000 

25,000 

25,000

24,500 

24,100 

23,100 

22,700 

21,800

Secondroot-days

56,225 

106,830 

139,530

2,897,097

168,640 

248,190 

593,700 

619,800 

777,400 

726,000 

257,970 

77,280 

49,954

3,821,519

May

21 , 200 

20,800 

20,800 

20,400 

20,400

19,900 

19,500 

19,100 

19,100 

18,700

18,300 

18,700 

19,900 

21,700 

24,400

26,800 

29,300 

30,800 

31,900 

31,900

30,800 

29,800 

29,300 

29,300 

29,800

29,300 

29,300 

29,300 

29,300 

28,800 

28,800

Maximum

2,780 

7,610 

8,710

34,000

10,900 

19,700 

22,200 

25,000 

31,900 

28,300 

19,100 

3,750 

2,570

31,900

June

28,300 

27,300 

27,300 

26,800 

26,800

26,300 

26,300 

26,300 

25,800 

25,300

24,400 

23,500 

23 , 500 

23,500 

24,400

24,400 

24,400 

24,400 

24,400 

23,900

23,900 

23 , 500 

23,000 

22,600 

22,100

21,700 

21 , 200 

20,800 

20,400 

19,500

July

19,101 

18,301 

17,901 

17,501 

16,700

16,001 

15,601 

14,901 

14,200 

13,500

13,200 

11,800 

8,480 

5,420 

4,330

3,321 

3,021 

2,840 

2,960 

3,451

4,610 

4,131 

4,110 

3,031 

2,971

3,010 

3,030 

2,860 

2,980 

1,850 

2,870

Minimum

905 

2,400 

3,270

358

4,450 

5,260 

15,800 

15,400 

18,300 

19,500 

1,850 

1,800 

861

861

Aug.

3,750 

3,300 

3,220 

3,080 

2,690

2,670 

2,990 

2,920 

2,570 

2,630

2,600 

2,490 

2,370 

2,800 

2,710

2,530 

2,300 

2,420 

2,140 

1,860

1,960 

1,800 

2,460 

2,340 

2,360

2,180 

1,940 

2,010 

1,990 

2,170 

2,030

than

1,814 

3,561 

4,501

7,937

5,440 

8,864 

19,150 

20,660 

25,080 

24,200 

8,322 

2,493 

1,665

10,470

Sept.

2,040 

2,410 

1,650 

1,970 

1,510

1,420 

1,790 

1,720 

1,750 

1,450

1,520 

1,510 

2,160 

1,250 

2,040

1,230 

953 

1,950 

1,360 

1,370

1,410 

1,910 

861 

1,350 

1,630

1,820 

2,570 

1,980 

2,150 

1,220

Runoff in 

acre -feet

111,500 

211,900 

276,800

5,747,000

334,500 

492,300 

1,178,000 

1,229,000 

1,542,000 

1,440,000 

511,700 

153,300 

99,080

7,580,000
290 SPOKANE RIVER BASIN

Spokane River at Long Lake, Wash.

Location. Water-stage recorder, lat. 47°50', long. 117°50', in SW| sec. 13, T. 27 N., R. 

39 E., at Long Lake power plant, 12 miles north of Reardan. Datum of gage is 1,300.00 

feet above mean sea level, subject to correction to datum of 1929.

Drainage area.--6,100 square miles.

Records available.--April 1939 to September 1950.

Average discharge. 11 years, 7,577 second-feet (adjusted).

Extremes.--Maximum discharge during year, 48,200 second-feet May 23 (gage height, 78.30 

feet); minimum not determined, occurred during period of backwater from Little Falls 

Power plant; minimum daily, 202 second-feet Sept. 17 (determined from power-plant 

records).

1939-50: Maximum discharge recorded, 49,400 second-feet May 24, 1948 (gage height, 

78.66 feet); minimum recorded, 115 second-feet Oct. 6, 1939 (gage height, 57.56 feet), 

but may have been less during periods of backwater; minimum daily, 144 second-feet Sept 

15, 1946, Aug. 24, 1947 (determined from power-plant records).

Remarks. Water diverted above station for irrigation. Flow partly regulated by Coeur 

d.'Alene Lake (see p. 282). Diurnal fluctuation and some regulation cauied by power 

plant at Long Lake (capacity between elevations 1,512 and 1,531 feet, 73,600 acre-feet).

Cooperation.--Record of discharge and gage heights for Long Lake furnished by Washington 

Water i'ower Co.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,460 

212 

3,020 

3,130 

3,060

3,160 

3,010 

2,290 

1,040

3,190

3,450 

3,180 

2,970 

2,500

219

1,170 

2,920 

1,940 

1,990 

3,080

2,210 

445 

375 

2,380

2,160

2,130 

2,040 

3,080 

2,170 

406 

2,700

Nov.

3,120 

3,480 

3,440 

3,650 

3,590

1,540 

3,420 

3,630 

3,660 

3,670

3,910 

3,920 

3,520 

4,860 

4,230

3,820 

3,950 

4,080 

3,660 

3,610

4,310 

4,310 

4,270 

2,400 

3,400

3,260 

2,340 

6,370 

6,960 

8,030

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Marc 

Apri

fllflv

June 

July 

Augu 

Sept

Wat

endar year 1949

er year 1949-50

Dec.

9,110 

7,380 

5,420 

5,240 

4,900

4,920 

b,340 

4,420 

4,520

3,560

3,190 

4,650 

4,780 

4,770 

4,840

4,84O 

4,580 

4,260 

4,820 

4,960

5,310 

5,100 

4,820 

3,180 

1,450

2,270 

4,210 

4,030 

3,940 

5,250 

4,970

Jan.

4,140 

4,800 

5,860 

5,480 

5,510

4,670 

4,130 

3,780 

4,590 

4,830

4,750 

4,700 

4,970 

6,010 

5,580

5,390 

6,090 

6,120 

6,020 

5,330

4,280 

3,630 

9,180 

9,770 

8,240

10,700 

8,860 

4,450 

5,040 

5,020 

6,000

Feb.

6,050 

6,280 

6,310 

5,730 

4,470

5,410 

6,940 

7,120 

7,520 

7,670

7,610 

7,600 

7,180 

7,630 

7,020

9,230 

9,180 

8,920 

9,440 

5,000

7,220 

8,720 

8,580 

10,400 

18,200

24 , 800 

15,800 

17,500

Mar.

16,600 

15,700 

17,700 

23,100 

29,600

20 , 800 

26,800 

25,4OO 

21,600 

22,100

23,500 

26,500 

8,160 

19,800 

16,400

17,300 

24,400 

23,900 

33,300

19,000

27,70O 

19,200 

25,400 

22,400 

21,500

31,600 

12,900 

21,000 

20,000 

18,400 

15,800

Observed

Discharge in 

second-feet

Maximum

3,450 

8,030 

9,110

36,100

10,700 

24,800 

33,300 

29,800 

35,600 

30,500 

22,400 

3,480 

3,260

35,600

Minimum

212 

1,540 

1,450

212

3,630 

4,470 

8,160 

12,800 

15,600 

18,900 

606 

450 

202

202

Mean

2,164 

3,914 

4,678

8,557

5,739 

9,055 

21,530 

23,000 

26,440 

25,330 

7,951 

2,664 

1,936

11,190

Runoff 

in 

ao re- feet

133,100 

232,900 

287,700

6,195,000

352,900 

502,900 

1,324,000 

1,368,0^0 

1,626,000 

1,507,000 

488,900 

163,800 

115,200

8,102,000

Apr.

17,100 

27,800 

12,800 

20,500 

21,400

22,300 

23,200 

27,300 

21,800 

16,000

19,700 

20,000 

22,100 

24,700 

25,300

20,600 

17,300 

21,500 

23,300 

26,300

25,000 

28,800 

27,200 

23,400 

26,4OO

26,300 

24,300 

24,800 

29,800 

22,900

May

18,600 

22,900 

19,100 

21,800 

23,400

22,000 

24,300 

15,600 

20,100 

20,200

20,300 

19,800 

24,500 

26,300 

26,300

28,300 

30,000 

31,700 

30,000 

35,600

33,800 

28,400 

30,600 

31,200 

31,800

29,800 

34,300 

31,500 

25,900 

33,100 

28,400

contents In 

Long Lake 

(acre-feet)

+3,150 

+250 

-250

+10,100

-7,950 

+2,400 

-9,500 

-17,700 

+4,500 

+13,650 

+26,850 

+800 

+1,000

+17,200

June

30,100 

25,400 

30,500 

30,500 

25,000

27,000 

26,900 

27,800 

24,900 

29,600

27,200 

24,700 

21,900 

25,600 

24,600

22,400 

29,200 

27,400 

22,900 

25,900

25,800 

24,900 

25,000 

25,700 

24,200

18,900 

23,200 

20 , 100 

22,100 

20,400

July

19,800 

22,400 

14,200 

18,200 

13,900

16,300 

15,600 

13,000 

9,940 

9,510

12,700 

13,100 

6,990 

5,590 

4,590

2,950 

2,450 

2,400 

3,810 

4,590

4,320 

3,630 

2,880 

3,280 

3,430

3,470 

3,580 

3,550 

2,810 

606 

2,890

Aug.

3,260 

3,480 

3,400 

3,180 

1,850

1,460 

3,120 

2,860 

2,680 

3,220

3,480 

3,340 

850 

2,990 

3,340

2,980 

2,810 

2,780 

2,380 

450

2,780 

2,620 

2,830 

3,130 

3,200

2,380 

530 

2,910 

2,660 

2,800 

2,840

Sept.

3,080 

3,260 

612 

777 

2,810

2,170 

2,130 

2,060 

1,990 

553

2,500 

2,210 

2,850 

2,070 

2,830

238 

202 

2,470 

2,720 

2,480

2,160 

1,850 

757 

283 

2,600

2,960 

2,590 

2,060 

2,000 

810

Adjusted for change 

In lake contents

Runoff 

in 

acre-feet

136,200 

233,200 

287,400

6,206,000

345,000 

505,300 

1,314,000 

1,350,000 

1,630,000 

1,521,000 

515,800 

164,600 

116,200

8,119,000

Discharge in 

second- feet

Mean

2,215 

3,919 

4,674

8,572

5,611 

9,098 

21,370 

22,690 

26,510 

25,560 

8,389 

2,677 

1,953

11,210

Per 

square 

mile

:

1.41

1

1.84

Runoff

inches

:

19.08

1

24.95

Note. Backwater from Little Palls Oct. 1 to Mar. 13, July 13 to Sept. 30; discharr* computed by 

Washington Water Power Co. from power-plant records. Change In contents for Long Lake based on 12

p.m. n-lTl- gage trAcrn T»eafH readings. ncrps .
SPOKAME RIVER BA3IM 

3t. Joe River at Calder, Idaho

391

Location.--Water-stage recorder, lat. 47°16', long. 116°11', in sec. 3, T. 45 N., R. 2 

E., 150 feet southwest of Chicago, Milwaukee, St. Paul & Pacific Railway station at 

Calder. Datum of gage is 2,096.76 feet above mean sea level, datum of 1929, supplementary adjustment of 1947, or 2,100 feet above mean sea level, datum of U. S. Geological Survey as given in Bulletin 567.

Drainage area.--1,030 square miles (revised).

Records available.--July 1920 to September 1950. April 1911 to September 1912 at site 

2j miles downstream.

Average discharge.--30 years (1920-50), 2,266 second-feet.

Extremes.--Maximum discharge during year, 18,400 second-feet May 14 (gage height, 88.34 

 feet); minim , 310 second-feet Oct. 19 (gage height, 79.38 feet).

1911-1S, 1920-50: Maximum discharge, 53,000 second-feet Dec. 23, 1933, computed 

on basis of slope between gages downstream; maximum gage height, 93.1 feet Apr. 18, 

1938, from floodmark; minimum discharge, 96 second-feet Dec. 5, 1928 (gage height, 

78.43 feet).

Remarks.--Records good except those for periods of ice effect or no gage-h3ight record, 

which are fair. No diversion above gage.

Cooperation.--Gage-height record and four discharge measurements furnished by Washington 

Water fower Co.

Discharge, in second-feet, water year October 1949 to September 193O

Day

1 

2 

3 

4

5

6

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

382 

370 

350 

342

510

728 

552 

450 

412 

475

460 

455 

440 

404 

378

370 

366 

358 

334 

330

350 

346 

342 

346 

342

346

346 

574 

963 

620 

500

Nov.

450 

422 

408 

390 

382

374 

370 

394 

435 

490

495 

686 

1,070 

963 

809

722 

662 

620 

596 

584

540 

505 

596 

348 

1,050

1,280 

2,510 

2,900 

2,080 

*1,760

Dec.

1,520

1,520 

1,470 

1,260 

1,180

1,100 

928 

868 

874 

835

644

776 

868 

770 

770

835 

796 

758 

722 

680

b620 

S50 

734 

776 

674

b620 

710 

894 

928 

835 

796

Jan

776 

746 

626 

557 

568

b550 

b550 

816 

746 

692

680 

638 

595 

562 

515

530 

550 

b590 

640 

300

1,800 

b3,000 

b3,500 

b2,000 

bl,700

bl,700 

bl,700 

1,500 

1,400 

1,350 

1,300

Feb.

1,300 

1,300 

1,300 

1,350 

1,400

*bl,500 

bl,500 

1,500 

1,500 

1,500

1,500 

1,400 

1,300 

1,300 

1,400

1,700 

1,900 

2,000 

1,700 

1,550

1,500 

1,400 

1,700 

3,000 

b6, 000

b5,600 

b5,400 

3,230

ii *>, SecondMonth foot-days

Ootc

NOV 

Deoe 

CE

Jam. 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augi 

Sepl

WE

mber . ... ........

lendar year 194 

ary

1 n

,

2

st ....... .... .... . . ...

ember .......... . . . . ....

13,541

25,391 

27,411

38,164

33,777 

57,730 

36,520 

75,650 

21,590 

25,620 

30,770 

29,541 

15,938

ter year 1949-50 . . ....... 1,213,479

Peak discharge (base, 8,500 see. -ft.). A

10,100 sec. -ft.; May 14 (6 a.m.) 18,400 sec 

15,000 sec. -ft.; June 17 (6 a.m.) 13,900 se 

* Winter discharge measurement made on th 

b Stage-discharge relation affected by Ic 

f Computed from partly estimated gage-hel 

Mote. --Ho gage-height record Jan. 13, 15- 

26, 28, 29, Apr. 30; discharge computed on 

tlons on Coeur d'Alene and North Fork Clear

Mar

f2,650 

2,320 

*2,260 

3,840 

6,400

5,700 

f4,270 

3,480 

3,000 

2,600

2,300 

2,000 

fl,890 

1,790 

1,700

1,710 

3,240 

4,480 

3,600 

3,080

2,810 

2,650 

2,460 

2,400 

2,360

2,180

2,010 

1,900 

1,800 

1,700 

f 1,940

Maximum

963 

2,900 

1,520

18,400

3,500 

6 , 000 

6,400 

9,590 

17,600 

14,300 

7,420 

1,440 

735

17,600

Apr.

7,770 

9,080 

5,840 

4,340 

3,850

3,720 

3,570 

3,800 

3,720 

3,540

3,660 

4,290 

5,800 

6,580 

6,120

6,000 

9,030 

8,540 

7,460 

7,680

9,260 

9,590 

7,610 

6,020 

5,370

4,760 

4,830 

4,740 

4,580 

4,500

May

5,650 

5,520 

5,070 

4,710 

4,830

4,550 

4,180 

4,360 

5,100 

6,180

9,280 

12,700 

15,900 

17,600 

17,200

15,600 

15,100 

12,500 

9,970 

8,270

8,320 

11,400 

15,100 

13,100 

12,200

12,700 

14,200 

14,000 

13,100 

11,600 

11,600

Minimum

330 

370 

620

330

515 

1,300 

1,700 

3,540 

4,180 

7,280 

1,580 

634 

444

330

June

12,200 

12,100 

12,300 

13,000 

14,300

14,200 

11,900 

10,100 

8,780 

8,490

9,970 

12,400 

12,800 

13,000 

11,800

12,800 

13.4OO 

12,300 

11,500 

11,500

12,100 

10,900 

9,410 

8,660 

8,390

7,700 

7,350 

7,280 

7,420 

7,570

Mean

437 

846 

884

2,379

1,090 

2,062 

2,791 

5,855 

10,370 

10,850 

3,251 

953 

531

3,325

July

7,420 

6,920 

6,300 

5,900 

5,520

5,140 

1,710 

4,260 

3,920 

3,920

3,530 

3,220 

2,950 

2,790 

2,650

2,530 

2,390 

2,280 

2,430 

2,360

2,120

2,000 

1,910 

1,820 

1,730

1,700 

1,630 

1 , 600 

1,710 

1,830 

1,580

Per 

square 

mile

0.424 

.821 

.858

2.31

1.06 

2.00 

2.71 

5.68 

10.1 

10.5 

3.16 

.925 

.516

3.23

pr. 1 (9 p.m.) 12,300 sec. -ft.; Apr. 

.-ft.; May 23 (7 a.m.) 15,800 sec. -ft 

c.-ft. 

Is day.

ght record. 

17, 19-21, Jan. 28 to Feb. 5, Feb. 8- 

basls of recorded range In stage and 

water Rivers.

Aug

1,440 

1,360 

1,320 

1,280 

1,310

1,250

1,200 

,120 

,090 

,06O

,010 

,020 

966 

942 

928

928

861 

847 

805 

784

770 

749 

819 

840 

777

735 

709 

683 

664 

640 

634

Ri

Inches

O.49 

.92 

.99

31.35

1.22 

2.08 

3.12 

6.34 

11.61 

11.76 

3.64 

1.07 

.58

43.82

22 (3 to

. ; June

24, Mar. 

re-jords

Sept.

604 

599

587 

587 

593

593 

570 

553 

542 

537

526 

521 

526 

531 

510

521 

510 

494 

489 

469

464 

454 

449 

444 

444

576 

735 

537 

494 

479

inoff

Acre-feet

26,860 

50,360 

54,370

1,722,000

67,000 

114,500 

171,600 

348,400 

637,900 

645,900 

199,900 

58,590 

31,610

2,407,000

5 p.m.) 

6 (5 a.m.)

11, 12,

for sta-
SPOKANE RIVER BASIN

St. Maries River at Lotus, Idaho

Location.--Water-stage recorder, lat. 47°14'40", long. 116°37'30", in sec. 17, T. 45 N., R. 

aw., 1 mile northwest of Lotus, 1 mile downstream from Carlton Creek, snd 5j miles 

southwest of St. Maries. Datum of gage is 2,140.19 feet above mean sea level, referenced to benchmark "U.S.G.S. 2155 1911 35" (U. S. Geol. Survey Bull. 567, p. 45).

Drainage area.--437 square miles.

Records available.--October 1945 to September 1950. July 1911 to October 1912 and July 

J.92U to September 1945 at site 1.3 miles upstream.

Average discharge. 30 years (1920-50), 503 second-feet.

Extremes.--Maximum discharge during year, 8,670 second-feet Mar. 18, from rating curve extended above 2,400 second-feet on basis of slope-area determination at gage height 6.5 

feet; maximum gage height, 12.95 feet Feb. 25 or 26 (ice jam); minimum discharge, 46 

second-feet Oct. 20 (gage height 1.16 feet).

1911-12, 1920-50: Maximum discharge observed, 23,800 second-feet Dec. 22, 23, 1933, 

from rating curve extended above 4,000 second-feet by logarighmic plotting; maximum 

gage height, that of Feb. 25 or 26, 1950; minimum discharge, 16 second-feet (estimated) 

Nov. 21, 1929.

Remarks. Records good except those for period of ice effect or no gage-.he:ght record, 

which are poor. No diversion above station.

Cooperation.--Gage-height record and four discharge measurements furnished by Washington 

Water fower Co.

Revisions.--W 1062 Drainage area.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

62 

71 

62 

60 

84

161 

131 

108 

89 

108

119 

97 

86 

76

71

69 

67 

69 

69 

67

67 

69 

69 

71 

71

71 

71 

97 

213 

134 

99

'Nov.

92 

86 

79 

79 

76

74 

74 

76 

89 

122

151 

251 

246 

183 

151

131 

111 

105 

99 

99

94 

94 

99

142 

242

201 

321 

311 

209 

*209

Dec .

234 

205 

201 

168 

154

154 

128 

111 

125 

97

74 

75 

80 

85 

80

75 

75 

80 

80 

70

74 

78 

85 

85 

80

85 

100

115 

120 

115 

110

Jan.

100 

90 

80 

70 

75

80 

95 

100 

100 

95

90 

85 

80 

75 

75

80 

85 

90 

100 

120

170 

300 

600 

450 

300

200 

170 

150 

140 

130 

130

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

ber ............. .........

lendar year 194$

h . . . ........ . ....... .

1 . . .......... ...........

st ........................

ember .....................

ter year 1949-50 ..........

Feb.

130 

140 

150 

170 

*185

200 

200 

190 

180 

170

160 

160 

160 

170 

250

500 

1,400 

1,800 

1,200 

800

650 

550 

600 

3,500 

6,000

5,500 

4,000 

2,000

Second 

f oo t-day s

2,758 

4,296 

3,398

231,024

4,505

31,115 

55,843 

80,960 

59,400 

32,514 

8,454 

3,342 

2,215

288,800

Mar.

1,200 

950 

1,100 

2,840 

3,630

3,410 

2,260 

1,550 

1,170 

967

800 

650 

550 

500 

*488

567 

4,790 

7,020 

3,770 

2,580

2,010 

2,060 

1,770 

1,650 

1,560

1,300 

1,120 

922 

785 

834 

1,040

Maximum

213 

321 

234

4,920

600 

6,000 

7,020 

6,080 

3,630 

2,180 

574 

161 

111

7,020

Apr.

5,230 

6,080 

3,250 

2,210 

2,050

2,080 

1,840 

2,050 

2,030 

1,990

2,160 

3,630 

3,690 

4,350 

3,410

3,110 

3,910 

3,500 

2,840 

2,630

3,010 

3,130 

3,600 

2,010 

1,760

1,550 

1,580 

1,570 

1,380 

1,330

May

1,520 

1,840 

1,950 

1,700 

2,010

1,900 

1,580 

1,450 

1,530 

1,690

3,140 

3,690 

3,330 

3,630 

3,350

2,880 

2,590 

2,260 

1,880 

1,580

1,460 

1,580 

1,790 

1,660 

1,450

1,380 

1,470 

1,470 

1,330 

1,210 

1,100

Minimum

60 

74 

70

44

70 

130 

488 

1,330 

1,100 

635 

154 

79 

62

60

June

1,070 

1,040 

994 

985 

1,010

1,000 

923 

913 

826 

762

739 

1,050 

1,430

2,180 

1,850

1,600 

1,440 

1,480 

1,360 

1,060

1,010 

994 

923 

801 

1,380

1,020 

843 

746 

673 

625

Mean

89.0 

143 

110

633

145 

1,111 

1,801 

2,699 

1,916 

1,084 

273 

108 

73.8

791

July

574 

530 

477 

448 

409

382 

351 

335 

311 

316

297 

278 

256 

238 

336

217 

209 

301 

209 

342

305 

190 

179 

171 

164

161 

154 

154 

164 

326 

190

Per 

square 

mile

0.304 

.327 

.252

1.45

.333 

2.54 

4.12 

6.18 

4.38 

2.48 

.625 

.247 

.169

1.81

Aug.

161 

144 

138 

131 

134

138 

131 

132 

119 

119

114 

108 

105 

102 

103

103 

97 

94 

92 

89

86 

84 

97 

114 

105

99 

92 

84 

81 

79 

79

Sept.

74 

71 

69 

69 

67

76 

84 

79 

76 

76

74 

71 

71 

76 

76

75 

72 

70 

68 

66

64 

64 

62 

62 

64

74

111 

97 

81 

76

Runoff

Irches

0.33 

.37 

.29

19.66

.38 

2.65 

4.75 

6.89 

5.06 

3.77 

.72 

.38 

.19

24.58

Acre-feet

5,470 

8,520 

6,740

458,300

8,940 

61,730 

110,800 

160,600 

117,800 

64,490 

16,770 

6,630 

4,390

572,900

Peak discharge (base, 3,200 sec.-f t.) . Feb. 25 or 26 (time and discharge unknown): Mar. 5 (4 to

- , , 30 sec.-rt.j Mar. 18 (12:30 a.m.) 8,670 sec. -ft. ; Apr. 1 (10 p.m.) 7,920 sec.-ft.} ..,._. 

(5 a.m.) 4.510 sec.-ft. ; Apr. 17 (7 p.m.) 4,130 sec.-ft.j May 14 (11:30 a.m.) 3,830 sec.-ft.; June 

14 (7 a.m.) 2,340 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice about Dec. 30 to Mar. 3. No gage-height record 

Dec. 12 to Jan. 4, Jan. 6 to Feb. 4, Feb. 6-27, Mar. 2, 3, 11-14, Sept. 16-20; discharge computed 

on basis of weather records and records for Fotlatch Creek, Coeur d'Alene River stations, and Coeur 

d'Alene Lake.
3PQKANE RIVER BASIN 293

Hayden Creek below North Fork, near Hayden Lake, Idaho

Location.--Water-stage recorder, lat. 47°49'2Q", long. 116 0 39'20", in NW^SW^ sec. 25, T.

 52 M., R. 3 W., 0,35 mile downstream from North Fork, "^ miles upstream from mouth, and 

7 miles, northeast of Hayden Lake post office. Altitude of gage is 2,370 feet (from topographic map).

Drainage area.--22.0 square miles.

Records available.--April 1948 to September 1950. May to July 1948 published as Hayden 

Creek near Hayden Lake.

Extremes.--Maximum discharge during year, 774 second-feet Mar. 18 (gage height, 4.73 feet), 

from rating curve extended above 300 second-feet on basis of slope-area determination 

at gage height 4.38 feet; minimum recorded, 3.6 second-feet about Nov. 8; minimum gage 

height, 0.74 foot Sept. 23, 24.

1948-50: Maximum discharge, that of Mar. 18, 1950; minimum recorded, that of about 

Nov. 8, 1949.

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

which are poor. No diversion above station.

Discharge, in second-feet, water year October 1949 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

Oct.

4.2

4.4

4.4

5.7

22

12

8.0

6.0

5.3

7.0

5.0

4.6

4.4

4.4

4.2

4.2

4.2

4.2

4.4

4.4

4.2

4.0

4.0

4.0

4.0

4.0

4,

I 8

Nov.

5

20

20

40

*22

20

19

-

Dec.

14

> 9

20

Jan.

<

r is

1

*ll

12

13

14

9.6

8.7

8.7

8.3

7

,

L 40

1

. 12

Month

October . . ....................

November .............. ..... .

December .... ... .............

Calendar year 1949 .........

January ......... . .... ......

February . ............... ....

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

April .... ..... ........... .

Hay ......................... .

June ......... ....... .

July ................ . .... .

September ....... ............

Water year 1949-50 .........

Feb.

 13

*14

15

13

9.2

9.2

8.7

9.6

11

SO

38

41

40

39

36

34

33

107

188

230

227

168

_

.

-

Secondfoot-days

183 . 2

436

373

11,617.2

459 3

1*381.7

4 949

4,S08

4 239

'530

258 . 2 

181.6

18,982.0

Mar

112

85

81

243

448

378

279

209

160

119

92

76

68

63

58

67

200

700

400

250

160

120

100

*91

79

69

61

51

44

43

43

Maximum

22

40

277

230

700

294

418

52

12

8.2

700

Apr.

159

276

195

136

120

112

110

120

112

100

93

115

266

294

245

227

292

255

195

180

227

232

172

120

100

81

76

68

64

66

May

79

86

86

81

81

81

76

75

84

136

263

342

418

377

297

227

198

156

115

86

87

108

115

86

76

76

84

81

69

59

54

Minimum

4.0

4.0

8.7

43 

64

54

31

10

6.8 

5.6

4.0

June

52

50

49

48

49

48

46

40

36

33

33

36

37

36

33

31

38

36

33

31

36

41

38

37

45

44

43

38

35

31

Mean

5.91 

14.5

12.0

14.8

49.3

160 

160

137

39.4

R t^

6.05

52.0

July

23

E7

24

23

23

23

23

22

Z2

20

19

18

17

17

18

18

15

15

22

14

12

11

11

11

10

10

10

11

13

12

10

Per 

square 

mile

 659

 545

1.45

.673 2 . 24

7.27

7.27 

6.23

1.79 

.777

379 

!275

2.36

Aug.

10

c

c

c

c

c

c

6

£

£

£

£

e

e

£

6

7

7

7

.8

.5

.2

.5

.2

.2

.8

.8

.8

.5

.2

.2

.2

.5

.5

.9

.6

.6

7.6

7

7

11

e

.0

.0

.5

7.6

7

7

7

7

6

.6

.3

.0

.0

.8

6.8

Sept

6.6

6.6

6.0

6.0

6.6

6.3

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

5.8

5.8

5.8

5.8

5.6

5.6

5.6

5.6

5.6

5.6

6.3

8.2

6.8

6.0

5.8

5.6

Runoff

Inches

0.31

.74

.63

19.65

78

2^34

8 13

2!oO

.90

.44 

.31

32.12

Acre-feet

363

865

740

23,040

911

2,740

9 540

8^410

2,350

1,050

512 

360

32,660

Peak discharge (baee, 200 sec.-ft.). Feb. to (8 \a p.m.); 240 ztu sec.-ft.; sec.-it.; Mar. m5 b(3 {j a.m.); 498 *SBseo.-ffe.; sec.-IE, 

Mar. 18 (time unknown) 774 sec.-ft.; Apr. 2 (8 a.m.) 289 sec.-ft.; Apr. 13 (9 p.m.) 318 sec.-ft.j 

May 13 (12 p.m.) 431 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice about Jan. 1-6, Jan. 12 to Feb. 9. No gage-height

reco 

comp

lie. ouage-aiscnarge relation anectea Dy ice aoout Jan. i-6, Jan. 12 to sea. 9. Wo gage-heigr

>rd Oct. 28 to Nov. 27, Nov. 29 to Jan. 3, Jan. 18-20, Jan. 30 to Feb. 6, Mar. 17-23J discharge

>uted on basis of weather records and records for Coeur d'Alene River stations and Hayden Lake.
294 SPOKANE RIVER BASIN

Hayden Lake at Hayden Lake, Idaho

Location.--Staff gage, lat. 47°46', long. 116"45', in sec. 18, T. 51 N., R. 3 ¥., at 

Avondale and Hayden Lake pomplng plants, a quarter of a mile north of Bocanta Tavern 

at Hayden Lake. Datum of gage Is 2,200.21 feet above mean sea level, datum of 1929.

Records available. May 1920 to September 1950.

Remarks.--Gage read once daily. Water is pumped from lake for irrigation and domestic 

supply.

Revisions (water years).--W 962: 19C1(M).

ge height, In feet, water year Octoter 1949 to September 1950

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

32.79

32.79

32.79

32.79

32.79

32.83

32.84

32.83

32,83

32.82

32.80

32.78

32.76

22.74

32.71

32.158

32. 66

32.64

32.62

32.59

32.57

32.55

32.54

32,52

32.50

32.50

32.48

32.54

32.53

32.52

32.52

Nov.

32.50

32.49

32.47

32.45

32.43

32.41

32.40

32.40

32.41

32.42

32.47

32.51

32.54

32.56

32.58

32.60

32.60

32.59

32.59

32.56

32.54

32.53

32.53

32.54

32.53

32.53

32.57

32.58

32.60

32.62

-

Dec.

32.63

32.63

32.63

32.63

32.63

32.63

32.63

32.62

32.62

32.60

32.58

32.56

32.55

32.54

32.54

32.59

32.59

32.62

32.62

32.62

32.61

32.62

32.62

32.63

32.64

32.64

32.64

32.65

32.63

32.64

32.64

32.64

32.64

32.64

32.64

32.65

32.68

32.70

32.70

32.66

32.65

32.65

32.65

32.65

32.66

32.74

32.74

32.76

32.78

32.78

32.84

3S.86

32.86

32.84

32.84

32.84

32.86

32.88

32.88

32.88

32.88

32.88

Feb.

32.88

32.88

32.88

32.88

32.90

32.94

32.94

32.94

32.94

32.94

32.94

32.96

32.98

33.00

33.00

33.00

32.98

33.02

33.14

33.18

33.24

33.29

35.38

33.54

33.74

33.89

33.94

-

Mar.

34.14

34.24

34.34

34.54

34.98

35.24

35.35

35.47

35.73

35.77

35.77

35.81

35.83

35.87

35.87

35.95

36.15

36.81

37.17

37-47

37.65

37.77

37.87

37.95

38.03

38.07

38.15

38.19

38.23

38.25

38.27

Apr.

38.33

38.49

38.67

38.79

38.87

38.95

39.05

39.11

39.19

39.25

39.29

39.35

39.45

39.60

39. 73

39.85

39.97

40.11

40.19

40.27

40.33

40.43

40.51

40.56

40.59

40.61

40.63

40.65

40.65

40.65

-

May

40.65

40.71

40.73

40.73

40.75

40.79

40.81

40.83

40.85

40.85

40.91

40.99

41.09

41.29

41.39

41.47

41.53

41.55

41.55

41.49

41.46

41.40

41.38

41.33

41.28

41.22

41.16

41.12

41.06

41. OO

40.94

June

40.86

40.80

40.74

40.72

40.64

40.58

40.54

40.52

40.48

40.42

40.36

40.36

40.34

40.32

40.30

40.28

40.26

40.22

40.18

40.14

40.12

40.08

40.04

40.00

39.98

39.96

39.92

39.90

39.84

39.80

-

July

39.74

39.68

39.62

39.56

39.48

39.40

39.34

39.26

39.16

39.10

39.02

38.94

38.88

38.80

38.70

38 . 60

38.54

38.48

38.44

38.44

38.38

38.30

38.24

38.18

36.12

38.06

37.98

37.88

37.84

37,78

37.74

Aug.

37.70

37.64

37.58

37.51

37.44

37.38

37.32

37.26

37.18

37.14

37.08

37.02

36.96

36.90

36.84

36.78

36.72

36.66

36.60

36.54

36.50

36.44

36.35

36.31

36.25

36.21

36.17

36.11

36.03

35.99

35.95

Sept.

35.89

35.83

35.79

35.75

35.69

35.65

35.61

35.55

35.49

35.43

35.39

35.35

35.29

35.25

35.19

35.15

35. 11

35.07

35.01

34.97

34.93

34.91

34.89

34.85

34.85

34.81

34.77

34.73

34.69

34.65

-
SPOKANE RIVER BASIN 295

Hayden Lake Irrigation District diversion near Hayden Lake, Id?ho

Location.--Water-stage recorder and Cipolletti weir, lat. 47°46'00", long. 116°47'30", in

 KEj sec. 14, T. 51 N., R. 4 W. , at dividing tower at end of main pipe line, 1-5- miles 

west of Hayden Lake post office and pumping plant and 7 miles north of Coeur d'Alene.

Records available.--June 1946 to September 1950.

Extremes. Maximum discharge daring year, 15 second-feet Aug. 20-23, Sept. 1-8 (gage 

height, 0.91 foot); no flow for long periods.

1946-50: Maximum discharge, that of Aug. 20-23, Sept. 1-8, 1950; no flow for long 

periods each year.

Remarks.--Records good. Discharge at station is pumped from Hayden Lake In sec. 18, T.

 51 N., R. 3 W., for irrigation of lands in Hayden Lake Irrigation District.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

33 

24 

25

26 

27 

38 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar. Apr.

Secondfoot-days

0 

0 

0

636.0

0 

0 

0 

0 

0 

31.3 

287.8 

308.0 

122.5

739.6

May

Maximum

0 

0 

O

14

0 

0 

0 

0 

0 

8.0 

14 

14 

15

15

June

2.1 

0 

0 

0 

5.2

8.0 

6.0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

0 

1.5 

10 

14 

14

10 

8.0 

8.0 

8.0 

7.8

9.0 

13 

14 

14 

12

14 

14 

9.7 

7.8

8.0

10 

14 

14 

14 

14

14 

11 

0 

0 

0 

0

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

6.4

14 

14 

14 

14

14 

14 

13 

13 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

9.6

0 

0

0 

0 

0 

0 

0 

0

M<ian

0 

0 

0

1.74

0 

0 

0 

0 

0 

0.71 

9.28 

9.94 

4.08

2.03

Sept.

12 

14 

15 

15 

14

14 

15

9.5

8.0 

6.0

0 

0 

0 

0 

0

O 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0 

0 

0 

0

Runoff in 

acre-feet

0 

0 

0

1,260

0 

0 

0 

0 

0 

42 

571 

611 

243

1,470

238382 O - 53 - 20
29b SPOKANE RIVER BASIN

Rathdrum Prairie Canal at Huetter, Idaho

Location. Water-stage recorder, lat. 47°43', long. 116°52', in sec. 6, T. 50 N., R. 4 

W., 450 feet downstream from outlet of discharge pipe, five-eighths of a mile north 

of pumping plant, and three-quarters of a mile northwest of Huetter.

Records available.--April 1946 to September 1950.

Extremes.--Maximum discharge during year, 66 second-feet July 23 (gage height, 3.00 feet); 

no flow for long periods.

1946-50: Maximum discharge, 67 second-feet June 29, July 2, 1947; maximum gage 

height, 3.05 feet June 3, 1947, Aug. 9, 1943; no flow for long periods each year.

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

Canal carries water which is pumped from Spokane River in sec. 7, T. 50 N., R. 4 W., 

for irrigation of first unit of Rathdrum Prairie project.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct. Nov. Dec. Jan, Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar. Apr.

Secondfoot-days

0 

0

0

6,628.3

0 

0 

0 

0 

511.3 

583.3 

1,695 

1,719 

1,028

5,536.6

May

0 

0

o

0 

0

o

0 

0 

0 

0

0 

0 

0 

0

o

21 

5.3 

0 

O 

15

0 

0 

23 

48 

57

57 

57 

57 

57 

57 

57

Maximum

0 

0 

0

61

0 

0 

0 

0 

57 

57 

65 

62 

60

65

June

57 

57 

57 

57 

57

52 

39

0 

0

o

.6 

45 

34

0 

0

0 

0 

0 

.3 

0

4.4

0 

0 

0 

0

0 

0 

21 

49 

53

July

53 

53 

53 

53 

54

52 

52 

52 

52 

18

0 

27 

57 

58 

59

60 

61 

62 

62 

62

62 

64 

65 

64 

63

63 

a63 

a63 

a63 

a63 

a62

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

a62 

a62 

a22 

aO 

a23

a44 

a60 

a48 

a60 

a60

60 

60 

60 

60 

61

61 

61 

60 

60 

61

61 

61 

61 

61 

61

62 

62 

62 

61 

61 

61

Mean

0 

0 

0

18.2

0 

0 

0 

0 

16.5 

19.4 

54.7 

55.5 

34.3

15.2

Sept.

60 

60 

60 

59 

59

a59 

a5 9 

a59 

a59 

as 9

a59 

aS 9 

a59 

aS 9 

a5 9

a59 

a59 

a22

0 

0

0

0 

0 

0 

0

0 

0 

0 

0

0

Runoff In 

acre -feet

O 

0 

0

13,150

0

0

0 

0

1,010

1,160 

3,360 

3,410 

2,040

10,980

a No gage-height record; discharge interpolated or computed on basis of reported pump operation.
SPOKANE RIVER BASIN 

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

297

Location. Water-stage recorder, lat. 4?°43', long. 116°S7', in sec. 3, T. 50 N., R. 5 

W., 300 feet downstream from head gate and half a mile northwest of post Falls.

Records available.--May 1911 to September 1917, September 1919 to September 1950.

Extremes. Maximum discharge during year, 315 second-feet Aug. 2 (gage height, 6.06 feet); 

practically no flow for long periods during nonirrigation season.

1911-17, 1919-50: Maximum discharge recorded, that of Aug. 2, 1950; no flow or 

small amount of leakage during nonirrigation seasons.

Remarks.--Records good except those below 10 second-feet, which are poor. Canal diverts 

wafe"r for irrigation from Spokane River in SEij sec. 3, T. 50 H. , R. 5 W.

Cooperation. Water-stage recorder inspected by employee of Spokane Valley Farms Co. 

Ji'our discharge measurements furnished by Washington Water Power Co.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

1

0 

0 

0

Nov. Dec. Jan. Feb.

0 

0 

0 

0 

0

o 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

*1 

1 

1

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 194S

ter year 1949-50 .......................

Mar.

1

1 

1 

1 

1

1 

1 

1 

11

1 

1

1 

1

1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

1 

1 

11

10

11 

11

16 

20

20 

20 

20 

23 

25

Secondroot-days

1 

0 

0

32,525

r o

3 

15 

189 

4,203 

6,871 

8,530 

8,368 

3,713

31,893

May

25 

25 

25 

25 

25

25

26

26 

27 

27

27 

27 

27 

62 

152

176 

197 

211 

211 

204

195 

228 

230 

238 

241

243 

243 

245 

258 

265 

267

Maximum

1

0 

0

272

0 

1 

1 

25 

267 

276 

292 

289 

221

292

June

273 

267 

270 

274 

276

272 

231 

266 

270 

269

270 

261 

238 

248 

250

225 

192 

176

176 

179

186 

184 

185 

186 

190

189 

205 

Z15 

222 

226

July

247 

259 

260 

265 

269

264 

274 

265 

243 

239

266 

274 

279 

281 

280

279 

280 

280 

280 

280

282 

286 

284 

286 

288

291 

292 

290 

290 

288 

289

Minimum

0 

0 

0

0

0 

0 

0 

0 

25 

176 

239 

213 

42

0

Aug.

287 

288 

289 

286 

283

283 

284 

282 

281 

281

280 

284 

286 

286 

282

280 

284 

284 

280 

286

285 

280 

266 

247 

245

242 

238 

236 

227 

213 

213

Mean

0 

0 

0

89.1

0 

.1 

.5 

6.3 

136 

229 

275 

270 

124

87.4

Sept.

214 

214 

213 

213 

212

221

198 

195 

20O 

201

201 

200 

200 

200 

170

52 

48 

43 

42 

43

42 

43 

42 

42 

44

46 

44 

44 

43 

43

Runoff In 

acre-feet

2.0 

0 

0

64,510

1 0 

6.0 

30 

375 

8,340 

13,630 

16,920 

16,600 

7,360

63,260

* Winter field estimate made on this day.

Mote. Stage-discharge relation affected by Ice about Feb. 25 to Mar. 4. Ho gage-height record 

Oct. 9-23, Nov. 11-13, Nov. 15 to Feb. 1, Feb. 3-25j discharge computed on basis of records for 

adjacent periods.
SFOKANE RIVER BASIN

Latah Creek at Spokane, Wash.

Location. Water-stage recorder, lat. 47°38 I 50", long. 117°27 I 00", in SW-J- sec. 24, T. 25 

N~. , R . 42 E., in Spokane, half a mile upstream from mouth.

Drainage area. 630 square miles.

Records available. --April 1948 to September 1950.

Extremes. Maximum discharge, 9,150 second-feet Feb. 26 {gage height, 11.36 feet); minimum, 

15 second-feet Oct. 1-3.

1948-50: Maximum discharge, 11,900 second-feet May 24, 1948 (gage height, 18.73 

feet, from floodmarks, datum then in use), by slope-area and contracted-opening methods; 

minimum, 10 second-feet Sept. 3, 1949 {gage height, 2.56 feet).

Remarks . --Records good except those for periods of ice effect, which are poor. Mo diversi on or regulation.

Rating tables, water year 1949-50, except periods of ice effe 

(gage height, in feet, and discharge, in second-feet)

Feb. 26 to Sept. 30

2.6 

2.8 

3.1 

3.4

27

60

lOd

3.7 

4.0 

4.3 

4.6

174

252

342

445

5.0 

5.5 

6.0

7.0 

8.0 

9.0 

10.5

1,750

2,660

3,990

6,880

2.5 15 3.1 

2.7 27 3.4 

2.9 42 3.7

Note.--Same as preeedingTable above 3.7 feet.

110

174

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

15

15

15

17

21

22

22

21

18

18

18

18

18

18

17

17

17

20

17

17

17

17

18

17

17

17

17

18

17

18

19

Nov.

18

ieis

20

21

20

20

20

20

25

26

23

32

35

38

37

32

30

28

27

25

26

25

26

*26

27

32

32

34

48

-

Dec

50

43

38

39

39

36

35

32

30

28

27

26

27

26

27

28

Jan.

35

25

25

25

25

28

33

40

47

*44

42

44

35

30

25

25

29 25

29 I 25

28 1 25

27

26

27

27

28

30

37

47

68

82

70

50

40

60

80

50

40

30

25

24

24

24

23

23

Month

October .... ..................

November ... ....... ..........

December ... . ............ ...

Calendar year 1949 ..... ...

January .... ..................

February ... .............. ...

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

April ...... ..................

May ......................... .

June ................... . . ...

July .......................

August ........................

September ............. .......

Water year 1949 -5O ..........

Feb

23

23

24

25

50

80

100

150

180

185

190

200

190

250

350

1,440

1,820

1,940

1,940

1,680

1,220

1,080

1,610

2,920

*6,820

6,740

3,560

2,220

_

_

-

Secondfoot-days

553

815

1,136

108,610

1,046

37,010

56,712

16,679

5 7 12

4^295

1,173

652

545

126,328

Mar.

1,540

1,280

1,750

3,690

5,010

3,500

2,140

1,630

1,380

1,200

870

700

655

632

632

1,450

4,840

5,830

3,560

2,060

1,640

1,540

1,380

1,280

1,280

1,030

1,030

1,030

770

678

655

Maximum

22

48

82

4,830

80

6 » 82C

5,830

1, 28C

365

52^

8C

2 C

IS

6,820

Apr.

845

1,160

1,280

1,080

870

745

770

700

632

565

517

489

525

610

610

545

501

481

457

406

362

342

349

333

296

258

241

244

249

217

-

May

199

212

326

365

311

290

378

252

230

217

202

196

217

238

247

225

199

174

155

144

137

121

108

102

96

93

87

80

74

70

67

Minimum

15

15

26

11

23

23

632

217

67

51

25

19

17

15

June

63

60

57

54

52

51

56

58

60

62

64

67

67

222

521

368

275

220

272

217

164

142

146

129

142

192

186

131

107

90

-

Mean

17.8

27.2

36.6

298

33.7

1 322

1 , 829

556

184

143

37.8

21.0

18.2

346

July

80

71

65

58

53

49

45

43

41

39

36

35

34

53

53

32

30

29

33

32

30

30

28

26

26

26

25

26

28

29

28

Per 

square 

mile

0 .028

.O4o

.058

.047

.053

2.10

2 90

. 883

.292

.227

.060

.033

.029

.549

Aug.

25

24

23

23

23

22

22

22

21

21

21

20

20

20

20

20

20

20

20

20

19

20

22

22

22

21

20

19

19

19

Sept.

19

19

19

19

19

18

17

19

18

19

17

17

18

18

19

19

18

18

17

17

18

18

18

18

19

19

17

17

18

19

-

Runoff

Inches Acre feet

0.03 1,100

.05 1,620

.07 2,250

6.42 215,500

.06 2,070

2.18 73,410

3.35 112,500

.98 33,080

.34 11,330

25 8 520

!07 2)330

.04 1,290

.03 1,080

7.45 250,600

Peak discharge (base, 2,500 sec.-ft.).--Feb. 26 (2 a.m.) 9,150 sec.-ft.; Mar. 5 (6 to 7 a.m.) 

5,590 sec.-ft.; Mar. 18 (7 a.m.) 6,880 sec.-ft.

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 10, 11, 19, 2O, 23-25, Dec. 30 to Jan. 9, 

JanTTS to Feb. 15.
SPOKANE RIVER BASIN 299

Little Spokane River at Elk, Wash.

Location.--Water-stage recorder, lat. 48°01'CO", long. 117°16'2Q", in SE^ sec. 8, T. 29 

 N. , H. 44 E., half a mile north of Elk.

Drainage area.--80 square miles.

Records available.--July 1948 to September 1950.

Extremes. Maximum discharge during year, 141 second-feet Mar. 19 (gage height, 1.83

feet); minimum not determined, probably occurred during period of no gage-height record 

in January or February.

1948-50: Maximum discharge, that of Mar. 19, 1950; minimum, that of January or 

February 1950.

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

No known diversion or regulation.

Rating table, water year 1949-5O (gage height, In feet, 

and discharge, In second-feet)

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

1.2

1.3

1.4 

1.6 

1.8

43

52

63

94

134

1.2

1.3

1.4 

1.6

46

55

66

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

46

46

46

49

56

56

53

50

49

49

48

47

47

47

46

46

46

47

46

46

46

46

46

46

46

46

46

49

49

48

Nov.

47

47

47

47

46

46

46

46

47

49

52

54

58

58

55

54

51

50

49

48

47

47

47

48

47

48

49

49

48

49

48

Dec.

49

48

48

48

48

47

47

46

46

46

45

45

45

45

45

46

47

47

46

45

45

45

46

49

49

49

48

51

52

50

49

Jan.

46

44

43

41

40

41

42

43

44

44

43

41

39

38

38

39

40

40

40

40

41

42

43

43

42

41

40

39

38

38

37

Month

October ..... . ...............

November .... ....... .........

December .... . ..............

Calendar year 1949 .........

January ......... ....... .....

February . ..... ............

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

April . ......... ... ........

May .................. .......

June ............. ...........

July ................ .........

August .............. .........

September ............ ........

Water year 1949-50 . . .

Feb.

37

37

37

37

38

38

39

40

41

41

41

41

41

42

43

44

46

48

50

52

50

48

47

48

51

56

60

57

_

_

-

Secondfoot-days

1,482

1,476

1,462

21,724

1,270

1,250

2 , 905

3,339

2, 821

2, 146

1, 781

1 579

1J473

22,984

Mar.

55

55

56

63

80

97

94

88

85

80

73

70

68

66

68

70

99

128

137

128

124

126

120

122

116

112

112

108

103

101

101

Maximum

56

58

52

110

46

60

137

116

108

77

63

54

52

137

Apr

101

112

112

110

110

112

114

114

112

112

110

114

116

116

116

116

116

116

114

112

110

110

110

110

108

108

110

108

105

105

May

105

108

108

106

103

103

103

101

99

99

96

94

92

92

91

89

88

86

88

88

84

83

82

82

82

80

78

78

78

78

77

Minimum

46

46

45

42

37

37

55

101

77

64

53

4Q

48

37

June

Mean

47.8

49.2

47.2

59.5

41.0

44.6

93.7

111

91.0

71.5

57.5

50.9

49.1

63.0

77

76

74

74

73

73

76

74

73

73

73

74

74

76

74

72

70

70

69

68

72

72

72

69

69

69

66

65

65

64

-

July

63

62

62

60

60

60

59

59

62

60

59

59

59

58

58

57

57

56

57

57

56

55

55

54

54

53

53

54

54

55

54

Per 

square

mile

0.598

.615

.590

.744

.512

.558

1.17

1.39

1.14

.894

.719

.636

.614

.788

Aug

54

53

53

53

52

52

52

52

52

51

51

50

50

50

50

50

50

50

49

49

49

49

53

53

52

51

51

50

50

49

49

Sept

49

49

49

49

49

49

49

49

49

48

48

48

48

48

48

49

49

48

48

49

49

49

49

49

50

50

51

52

51

51

-

Runoff

Inches

0.69

.69

.68

10.10

.59

.58

1.35

1.55

1.31

1.00

.83

.73

.68

10.68

Acre-feet

2,940

2,930

2,900

43,100

2,520

2,480

5,760

6,620

5,600

4,260

3,530

3,130

2,920

45,590

Peak discharge (base, 100 sec.-ft.).--Mar. 19 (12:30 a.m.) 141 sec.-ft.; Apr. 2 (9 p.m.) 139 sec.- 

ft.

Mote. No gage-height record Jan. 2 to Feb. 27j discharge computed on basis of 1 discharge measurement, weather records, and records for station at Dartford.
300 SPOKANE RIVER BASIN

Little Spokane River at Dartford, Wash.

Location.---Staff gage, lat. 47°47'15", long. 117°25'00", in NEij sec. 6, T. 26 N., R. 43 

is. , at Dartford, 50 feet downstream from highway bridge and 6 miles upstream from mouth.

Drainage area.--626 square miles.

Records available.--April 1929 to September 1932, December 1946 to September 1950.

Extremes.--Maximum discharge observed during year, 2,240 second-feet Mar. 18 (gage height, 

b.J reet, from graph based on gage readings); minimum not determined, probably occurred during period of ice effect.

1929-32, 1946-50: Maximum discharge observed, that of Mar. 18, 19£0; minimum observed, 63 second-feet July 24, 1930 [gage height, 1.07 feet).

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

wnicn are fair. Gage read once daily. Some diversions for irrigation. No regulation.

Revisions. W 1092: Drainage area.

Rating table, water year 1949-50, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

1.5 142 2.6 565 

1.6 166 3.0 620 

1.6 226 3.5 1,120 

2.0 301 4.0 1,450 

2.2 365 4.9 2,090

Discharge, in second-feet, water year October 1949 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

Oct.

144 

142 

152 

161 

169

174 

177 

163 

166 

163

172 

174 

169 

166 

169

166 

159 

156 

159 

156

159 

161 

156 

159 

159

164 

169 

177 

ISO 

177 

174

Nov.

174 

172

166 

169 

166

169 

172 

169 

172 

177

177 

166 

213 

233 

251

270 

262 

256 

240 

233

213 

213 

*200 

197 

207

216 

220 

223 

220

216

Dec.

220 

213 

210 

213 

207

210 

216 

200 

166 

163

160 

163 

163 

177 

172

172 

166 

159 

156 

155

154 

177 

163 

166 

166

200 

220 

2 48 

270 

240 

226

Jan.

169 

159 

156 

154 

152

152 

165 

197 

207 

200

*210 

170 

156 

152 

150

146 

147 

146 

154 

197

213 

230 

270 

233 

172

155 

150 

145 

142 

140 

140

Feb.

140 

140 

140 

140 

150

160 

166 

207 

207 

210

216 

223 

216 

240 

265

293 

309 

366 

390 

412

365 

376 

366 

552 

596

652 

676 

*530

Month Secondfoot-days

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ....... ............

lendar year 1949 

ary

h ............... ... . . . .

st . . . .... ...............

ember ... ....... .........

5,152 

6,154 

6,053

24,179

5,331 

8,769 

37,546 

29,250 

16,078 

10,236 

6,369 

5,127 

4,590

ter year 1949-50 .......... 142,679

Mar.

596 

694 

790 

1,000 

1,320

1,660 

1,560 

1,520 

1,320 

940

790 

652 

666 

652 

616

656 

1,360 

2,090 

2,020 

1,670

1,700 

1,590 

1,560 

1,420 

1,320

1,320 

1,260 

1,220 

1,190 

1,120 

1,030

Maximum

166 

270 

270

1,520

27C 

676 

2,090 

1,220 

760 

365 

246 

163 

159

2,090

Apr.

1,220 

1,190 

1,220 

1,120 

1,090

1,090 

1,090 

1,060 

1,000 

1,000

940 

940 

910 

940 

940

1,000 

1,030 

1,000 

970 

970

940 

910 

910 

660 

650

650 

620 

620 

790 

760

May

760 

754 

746 

736 

730

712 

666 

676 

640 

616

596 

560 

563 

556 

a660

a630 

612 

596 

574 

552

536 

520 

500 

490 

460

465 

460 

435 

412 

403 

394

Minimum

142 

166 

154

127

140 

140 

596 

760 

394 

262 

177 

152 

149

140

* Winter discharge measurement made on this day.

June

361 

376 

366 

364 

366

359 

364 

366 

359 

351

346

376 

351 

366 

359

366 

342 

334 

326 

293

366 

385 

334 

317 

309

301 

293 

276 

270 

262

Mean

166 

205 

195

340

172 

313 

1,211 

975 

563 

341 

206 

165 

153

391

1950

July

246 

240 

240 

233 

226

220 

213 

207 

220 

213

213 

207 

200 

220 

213

207 

200 

194 

207 

213

200 

194 

186 

163 

163

177 

177 

183 

186 

194 

166

Per 

square 

mile

0.265 

.327

.312

.543

.275 

.300 

1.93 

1.56 

.931 

.545 

.329 

.264 

.244

.625

Aug.

163 

177 

172 

172 

177

172 

172 

172 

172 

166

166 

166 

161 

166 

166

161 

161 

156 

156 

156

152 

152 

169 

177 

177

172 

166 

156 

152 

152 

152

Sept.

149 

154 

152 

149 

154

152 

154 

152 

152 

152

154 

152 

149 

152 

152

156 

152 

154 

152 

156

152 

154 

152 

156 

152

152 

156 

159 

156 

152

Runoff

Inches

0.31 

.37 

.36

7.39

.32

.52 

2.23

1.74 

1.07 

.61 

.36 

.30 

.27

8.46

Acre-feet

10,220 

12,210 

12,010

246,300

10,570 

17,390 

74,480 

56,020 

35,860 

20,310 

12,670 

10,170 

9,100

263,000

Note. Stage-discharge relation affected by Ice Dec. 20, 21, Jan. 3-7, 12-19, Jan. 26 to Feb. 6.
SPOKANE RIVER BASIN 301

Little Spokane River near Dartford, Wash.

Location. --Water-stage recorder, lat . 47°47'00", long. 117 0 29'30", in W^ sec. 3, T. 26 N. , 

K. 4a E. , at county bridge 3 miles upstream from mouth and 4 miles west of Dartford.

Drainage area. --654 square miles.

Records available. --April 1948 to September 1950.

Extremes. --Maximum discharge during year, 2,220 second-feet Mar. 18 (gage heignt, 7.40 

reet) ; minimum, 401 second-feet Oct. 1-3, Sept. 7, 8, 11-14.

1948-50: Maximum discharge, that of Mar. 18, 1950; minimum, 377 second-f°et Sept. 

3, 1949 (gage height, 2.89 feet).

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

diversions above station for irrigation. Ho regulation.

Ratinig table, water year 1949-50, except periods of i:e effec 

(gage height, in feet, and discharge, in second-feet)

3.1 401 4.5 565 6.0 1,^20 

3.5 438 5.0 65? 6.5 1,380 

4.0 495 5.5 739 7.2 2,020

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

401 

401 

401 

405 

423

444

433 

423 

418 

428

4? 3 

418 

414 

414 

409

409 

409 

414 

409 

414

414 

414 

414 

414 

409

409 

409 

418 

428 

423 

418

Nov.

4L4 

414 

414 

414 

414

414 

409 

409 

414 

414

438 

444 

466 

489 

471

460 

449 

444

438 

438

438 

433 

438 

444 

*444

444 

460 

471 

454 

454

Dec.

454 

449 

449 

444 

438

438 

433 

428 

428 

428-

418 

418 

423 

418 

423

423 

423 

428 

423 

418

409 

423 

428 

433 

423

433 

458 

471 

489 

477

Jan.

444 

438 

423 

409 

405

415 

425 

444 

449 

454

*449 

449 

428

410 

410

420 

420 

420

430 

440

449

460 

466 

460 

430

430 

430 

430 

425 

425 

425

Feb.

425

420 

420 

420 

425

438 

444 

449 

449 

449

449 

449

454 

460 

471

495 

535

573 

598

626

598 

573 

590 

598

703

845

888 

*825

ii *t SecondMonth foot-days

Ooto 

Nove 

Dece

Ca

Jami 

Febr 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

mber .

lendar year 1949 ......

12,880 

13,147 

13,494

. . 215,772

h . .... ..... ...... .

ember .....................

13,412 

15,069 

38,954 

34,560 

25,081 

16,709 

13,894 

12,787 

12,146

ter year 1949-50 .......... 222 ,133

Mar.

757 

743 

729

910 

1,180

1,550 

1,600

1,380 

1 , 180 

1,080

935

865 

910 

865 

825

825 

1,020 

2,020 

2,020 

1,780

1,640 

1,600 

1 , 640 

1,550 

1,550

1,460 

1,380 

1,340 

1,260 

1,180 

1,180

Maximum

444 

489 

489

1,750

466 

888 

2,020 

1,300 

990 

598 

489 

428 

409

2,020

Apr.

1,180 

1,220 

1 , 500 

1,260 

1,?20

1,220 

1,260 

1,260 

1,220 

1,180

1,150 

1,150

1,150 

1,180 

1,220

1,180 

1,180 

1,180 

1,150 

1,150

1,120 

1,120 

1,080 

1,080 

1,050

1,050 

1,050 

1,050 

990 

960

May

Minimum

401 

409 

409

378

405

420 

729 

960 

616 

495 

423 

405 

401

401

Peak discharge (base, 1,000 sec. -ft .) .--Mar . 6 (6 p.m.) 1,680

935

960 

990 

960 

935

910 

888 

888 

865

865

845 

845 

845

865 

865

845 

845 

825

807 

789

773 

743 

729 

703 

691

679

668 

646 

c35 

K26 

616

June

598

59Q 

581 

565 

558

558

565 

581

573 

558

550 

575 

573 

581 

581

57S 

581 

573 

558 

535

514 

558 

573 

550 

542

535 

521 

514 

502 

495

Mean

415 

438 

435

591

435 

538 

1,257 

1,152 

809 

557 

448 

412 

405

609

sec. -ft . ;

July

489 

483 

477 

477 

471

466 

460 

454 

454 

460

454 

449 

449 

449 

444

444 

444

438 

444 

449

449 

438 

433 

4?P 

428

423 

425 

423 

428 

433 

433

Per 

square 

mile

0.635 

.670

.665

.904

.662 

.823 

1.92 

1.76 

1.24 

.852 

.685 

.630 

.619

.931

Aug

428 

425 

418 

418 

418

418 

418 

418 

418 

414

414 

409 

409 

409 

405

405 

405 

405 

405 

405

405 

405 

414 

418 

418

423 

414 

409 

409 

405 

405

Sept .

405 

405 

405 

405 

405

405 

401 

401 

405 

405

401 

401 

401 

401 

405

405 

405 

405 

405 

405

405 

405 

405 

405 

405

409 

409 

409 

409 

409

Runoff

Inches Acre-feet

0.73 25,550 

.75 26,080 

.77 26,760

12.28 428,000

.76 £-';, 600 

.86 29,890 

2.22 77,260 

1.97 G8,553 

1.43 49.750 

.95 33,140 

.79 27,560 

.73 25,360 

.69 24,090

12.65 440,600

Mar. 18 (7 p.m.) 2,220

ec.-ft.

* Winter discharge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Jan. 6, 7, 14-20, Jan. 25 to Feb. 5.
302

Gkanagan River at Okanagan Falls, British Columbia 

(International gaging station)

Location. --Water-stage recorder, lat, 49°21', long. 119°35' , 400 feet downstream from falls 

at Okanagan Falls, British Columbia, and 800 feet downstream from Dog Lake. Datum of 

gage is 1,091.86 feet above mean sea level (Geodetic Survey of Canada 1934 datum).

Drainage area. --2, 650 square miles

Records avail 

1915 to Sept

ea. --, square miles.

ilable . --October 1930 to September 1950 in reports of Geological Survey. 

eptember 1930 in reports of Water Resources Division, Department of Res

and Development, Canada.

March 

sources

but

Average discharge.--35 years, 488 second-feet.

Extremes. Maximum discharge during year, 1,310 second-feet June 15 (gage height, 2.94 

feet); minimum observed, 321 second-feet Jan. 30, Feb. 3 (gage height, 1.50 feet), 

may have been less during period of no gage-height record in January o~ February.

1915-50: Maximum discharge observed, 2,680 second-feet June 10, 1928; minimum observed, 4.6 second-feet Mar. 15, 1931.

Remarks.--Diversions above station for irrigation. Flow regulated by control dam at outr---*- of Okanagan Lake.

Coopera.._. -tion.--This __ station __ ._ .. __ is one .._ of _*. the >_, international - gaging station maintained by Canada

under agreement with the United States. 

Revisions.--W 1122: Drainage area.

Rating table, water year 1949-5O (gage height, In feet, 

and discharge. In second-feet)

1.5 321 2.5 940 

1.7 420 2.8 1,180 

1.9 530 3.0 1,360 

2.2 715

Discharge, In second-feet, water year October 1349 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

578 

572 

560 

548 

560

560

566 

554 

542 

548

542 

542 

536 

524 

530

524 

530 

524 

519 

514

514 

508 

508 

502 

502

497 

458 

470 

458 

453 

448

Nov.

436 

431 

431 

426 

420

410 

410 

405 

400

405

400 

395 

400 

405 

410

410 

405 

405 

410 

410

405

395 

390 

390 

380

426 

400 

405 

395 

385

Dec.

375 

395 

395 

395 

400

395 

395 

395 

395 

405

395 

395 

395 

390 

380

380 

380 

4O5 

a391 

a378

365 

355 

360 

360 

360

355 

380 

410 

442 

a432 

a421

Jan.

a410 

h400 

a395 

h390 

a386

a383 

h380 

a385 

a390 

a395

h400 

a385 

h370 

a368 

h365

h365 

a365 

h365 

a365 

h365

a368 

h370 

h355 

a352

h350

a350 

h350 

a34l 

a331 

h321 

a324

Feb.

h326 

a324 

h321 

a324 

a327

h331 

a336 

h341 

a346 

h350

a365 

a380 

h3S5 

a408 

h420

a448 

h475 

a493

3511

h530

a570 

a61O 

h650

a693 

h736

a 757 

778 

792

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

h. ......................................

ter year 1949-50 ........................

Mar.

600 

800

815

322 

830

838 

838 

838 

852 

876

868 

852 

845 

845 

838

830 

845 

876 

884 

860

845 

838 

830

822 

822

822 

822 

822 

808 

808 

808

Apr.

808 

800 

80O 

785 

750

757 

778 

778 

785 

^78

736 

696 

757 

815 

808

808 

815 

815 

808 

800

792 

800 

792

778

792

771 

785 

800 

785 

778

Secondfoot-days

16,191 

12,195 

12,074

260,024

11,439 

13,337 

25,899 

23,550 

30,456 

35,008 

22,556 

19,047 

14,332

236,084

May

785

785 

800 

792 

800

800 

792 

800 

808 

822

838 

368 

892 

924 

964

996 

1,060 

1,070 

1,070 

1,060

1,080 

1,100 

1,100 

1,120 

1,120

1,130 

1,170 

1,190 

1,240 

1,240 

1 , 240

Maximum

578 

436 

442

1,330

410 

792 

884 

815 

1,240 

1,300 

852 

715 

502

1,300 _____ _

June

1,270 

1,240 

1,230 

1,250 

1,290

1,300 

1,280 

1,250 

1,230

1,230

1,240 

1,240 

1,270 

1,280 

1,300

1,280 

1,250 

1,250 

1,240 

1,210

1,190 

1,130 

1,060 

1,010 

964

940

924 

900 

884 

876

July

852

838 

830 

815 

3C8

SCO 

771 

736 

729

7Z2 

7C2 

7C2 

7C2 

6S6

6E9 

6E2 

676 

6E2 

6E9

696 

689 

696 

689 

689

696 

682 

682 

729 

73 _ 

729

Aug.

715 

715

696 

696 

676

670 

670 

663 

650 

650

638 

638 

644 

644 

663

663 

663 

632 

608 

578

566 

554 

560 

554 

548

536 

530 

519 

514 

502 

492

Minimum r-?an

448 522 

330 406 

355 389

355 712

321 369 

321 476 

800 835 

696 785 

785 982 

876 1,170 

676 728 

492 614 

458 478

321 647

Sept.

492 

492 

492 

486 

475

475 

475 

470 

4'b4 

464

458 

464 

464 

458 

464

464 

464 

470 

475 

475

475 

480 

480 

486 

497

502 

497 

497 

497 

480

Runoff In 

acre-feet

32,110 

24,190 

23,950

515,300

22,690 

26,450 

51,370 

46,710 

60,410 

b9,440 

44,740 

37,780 

28,430

468,300

a No gage-height record; discharge estimated, 

h Computed from staff-gage readings.
OKANOGAN RIVER BASIN 303

Osoyoos Lake near Oroville, Wash. 

(International gaging station)

Location.--Water-stage recorder, lat. 48°59'15", long. 119 0 27'15", in lot 1, sec. °, T.

 40 N., R. 27 E., on west shore, 1 mile south of international boundary and 3 miles

north of Oroville. Datum of gage is at mean sea level, U. S. Coast and Geodetic Survey 

datum of 1929. Factors for converting gage readings to agree with other datums are as 

follows: +2.39 feet to convert readings to U. S. Geological Survey datum, 1915 adjustment (used prior to Apr, 29, 1946); -1.63 feet to convert readings to Geodetic Survey 

at Canada datum, 1934 adjustment; -0.26 foot to convert readings to 1947 joint adjustment of U. £. Coast and Geodetic Survey and Geodetic Survey of Canada.

Drainage area.--3,250 square miles.

Records available.--July 1928 to September 1950.

Extremes.--Maximum elevation during year, 915.21 feet June 19; minimum not determined, 

probably occurred during period of no gage-height record Jan. 13 to Feb. 16.

1928-50: Maximum elevation, 916.74 feet May 31, 1948; minimum, 908.82 feet (present 

datum) Oct. 14, 1929.

Flood of May 29, 1894, reached an elevation of 918.8 feet +0.5 foot (present datum), 

1 mile below present lake outlet, from floodmark on old Okanogan Hotel building, pointed 

out in 1930 by Mr. and Mrs. Stansbury who kept a diary and operated the hotel in 1894.

Remarks.--Diversion in Canada for irrigation. Elevation may occasionally be affected by 

dam at Zosel's mill in Oroville.

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

United States under agreement with Canada.

Elevation, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

911.32

911.33

911.32

911.33

911.37

911.58

911.39

911.38

911.37

911.38

911.38

911.39

911.39

911.38

911.38

911.37

911.38

911.34

911.30

911.28

911.29

911.30

911.30

911.31

911.34

911.36

911.38

911.40

911.40

911.40

911.40

Nov.

911.40

911.38

911.36

911.34

911.32

911.30

911.2?

911.27

911.26

911.26

911.25

911.25

911.26

911.26

911.25

911.23

911.22

911.20

911.19

911.18

911.17

911.15

911.14

911.16

311.16

911.15

911.17

911.18

911.18

911.18

-

Dec.

911.17

911.17

911.18

911.16

911.14

911.14

911.12

911.09

911.08

911.06

911.03

911.01

910.99

910.97

910.95

910.94

910.94

910.95

910.92

910.87

?10.85

910.83

910.83

910.82

310.80

910.78

910.79

910.79

910.79

910.79

910.80

Jan.

910.81

910.85

910.76

910.72

010.67

910.66

910.68

910.71

910.74

910.79

910.82

910.85

_

_

-

.

_

-

_

-

.

_

_

_

-

.

_

_

_

_

-

Feb.

_

_

-

-

-

_

-

_

-

-

.

-

_

_

-

910.96

910.92

910.87

S10.84

910.81

910.79

91O.80

910.81

910.82

910.83

910.84

910.85

_

-

Mar.

910.86

910.87

S10.88

910.91

910.95

911.05

911.12

911.19

911.27

911.37

911.43

911.48

911.51

911.48

911.46

911.44

911.45

911.45

911.45

911.44

911.42

911.41

911.39

911.38

911.36

911.34

911.31

911.28

911.26

911.23

911.21

Apr.

 

911.19

911.16

911.14

911.10

911.08

911.14

911.16

911.14

911.11

911.09

911.06

911.09

911.14

911.11

911.08

911.07

911.08

911.14

911.20

911.27

911.33

911.32

911.31

911.29

911.29

911.26

911.25

911.25

911.23

911.23

~

May

911.25

911.26

911.23

911.18

911.15

911.10

911.05

911.01

910.99

911.00

911.01

911.07

911.15

911.24

911.35

911.46

911.57

911.65

911.70

911.74

911.78

911.81

911.82

911.83

911.83

911.85

911.89

911-.95

912.06

912.09

912.05

June

912.02

911.96

911.97

July

912.04

911.83

911.67

912.041 911.51

912.19] 911 39

912.43) 911.38

912.591 911.38

912.59

912.51

911.37

911.38

912.43. 911.37

912.39 911.35

912.38 911.34

912.55 911.34

912.96 911.34

913. 55i 911.33

914.271 911.32

811.87

915.13

914.31

Aug.

911.47

911.50

911.46

911.43

911.39

911.38

911.37

911.35

911.37

911.38

911.40

911.41

911.42

911.44

911.45

911.46

911.48

911.30 911.49

915.20 911.30

915.15

915.03

914.86

914.65

914.29

913.86

913.44

913.07

912.74

912.46

912.23

911.29

911.48

911.47

911. 28! 911.45

911.28

911.28

911.29

911.30

911.31

911.30

911.30

911.38

911.42

911.45

911.43

911.42

911.40

911.38

911.36

911.33

911.29

911.25

911.20

911.15

Sept.

911.11

911.09

911 .07

911.03

911.00

911.01

911.00

910.97

910.96

910.94

910.94

910.95

310.95

910.93

910.94

910.94

910.95

910.96

910.98

911.00

911.02

911.04

911.06

911.07

9 11 . 10

911.14

911.16

911.19

911.21

911.21

-
304 OKANOGAN RIVER BASIN

Okanogan River at Oroville, tfash.

Location. Water-stage recorder, lat. 48"56', long. 119°51', in SW-j- sec, £7, T. 40 N. , R.

av JS., in Oroville , half a mile downstream from Tonasket Creek and if miles downstream

from Osoyoos Lake. Datum of gage is 900 feet above mean sea level, datum of 1929.

Records available.--October 1942 to September 1950.

Extremes.--Maximum discharge during year, 2,950 second-feet June 23; maxirrum gage height, 

14.ya feet June 18 (backwater from Similkameen River); maximum daily reverse flow, 844 

second-feet June 17; minimum gage height, 5.96 feet Jan. 2.

1942-50: Maximum discharge observed, 3,430 second-feet June 2. 194R; maximiom gage 

height, 16.£0 feet May 31, 1948 (backwater from Similkameen River); maximum daily 

reverse flow, 2, 270 second-feet May 29, 1948.

Remarks.--Records good except those for periods of ice effect, or backwater from Similkameen River, which are fair. Diversions in Canada for irrigation. Natural regulation 

in several large lakes and artificial regulation in Okanagan Lake as an aid to navigation and pondage back of Zosell's mill dam at Oroville, 200 feet above station.

Cooperation.--One discharge measurement furnished by Department of Resources and Developmerit, Canada.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

551 

558 

551 

551 

564

564 

571 

564 

564 

571

571 

571 

571 

564 

571

571 

585 

585 

545 

538

532 

532 

538 

513 

500

506 

513 

526 

519 

519 

519

Nov.

551 

564 

558 

551 

551

545 

538 

532 

532 

526

526 

526 

532 

526 

526

519 

513 

513 

513 

506

500 

490 

494 

494 

494

488

500 

1,170 

513 

500

Dec.

488 

*500 

500 

500 

500

500 

500 

494 

488 

488

483

477 

471 

465 

471

471 

465 

488 

406 

459

454 

454 

448 

448 

442

442 

442 

442 

442 

442 

437

Jan.

430 

420 

420 

410 

410

410 

405 

400 

400 

400

400 

395 

390 

390 

390

390 

390 

390 

390 

390

*395 

400 

405 

440 

415

415 

410 

405 

400 

395 

390

Feb.

385 

380 

380 

380 

385

395 

405 

415 

430 

450

460 

480 

500 

564 

578

585 

773 

845 

854 

836

827 

818 

818 

a818 

827

827 

827 

836

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MS V

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 194

h. ......................................

ember. ..................................

ter year 1949-50 .......................

Mar.

854 

*854

872 

872 

768

658 

690 

713 

739

765

783 

800 

944 

980 

971

971 

971 

971 

962 

953

953 

944 

953 

953 

944

944

926 

917 

917 

935 

926

Apr.

926 

908 

908 

899 

899

917 

935 

935 

935 

917

863 

845 

971 

962 

962

944 

852 

658 

682

697

827 

908 

917 

890 

890

863 

863 

854 

845 

845

Secondfoot-days

16,998 

16,291 

14,507

285,681

12,490 

17,078 

27,403 

26,317 

37,214 

46,951 

23,203 

17,736 

12,718

268,906

May

854 

1,040 

1,100 

1,080 

1,050

1,040 

1,020 

1,020 

1,010 

1,010

1,020 

1,060 

1,010 

1,040 

1,070

1,150 

1,200 

1,230 

1,260 

1,260

1,250 

1,290 

1,360 

1,390 

1,350

1,390 

1,440 

1,270 

1,500

1,660 

1,790

Maximum

585 

1,170 

500

2,240

440 

854 

980 

971 

1,790 

2,850 

1,590 

697 

532

2,850

June

1,770 

1,670 

1,590 

1,400 

1,060

1,050 

1,730 

1,910 

1,950 

1,890

1,760 

1,430 

354 

-220 

-384

-645 

-844 

1,120 

1,930 

2,290

2,390 

2,460 

2,690 

2,850 

2,770

2,570 

2,290 

2,080 

1,850 

1,590

July

1,590 

1,500 

1,420 

1,270 

1,030

765 

645 

633 

648

671

690 

666 

635 

643 

643

628 

621 

621 

614 

607

607 

607 

607 

600 

60C

60C 

60C 

60 C 

607 

614 

621

Minimum

500 

488 

406

-359

390 

380 

658 

658 

854 

-844 

600 

506 

400

-844

Aug.

621 

651 

697 

674 

666

651 

651 

585 

506 

519

513 

513 

506 

513

513

513 

513 

551 

585 

585

585 

578 

578 

578 

571

564 

558 

558 

551 

551 

538

Bran

548 

543 

468

783

403 

610 

884 

877 

1,200 

1,565 

748 

572 

424

737

Sept.

532 

532 

526 

454 

411

411 

416

416 

411

411

406 

406 

400 

400 

400

400 

400 

 400 

400

406

406 

411 

411 

416 

416

426 

421 

426 

426 

421

Runoff In 

acre -feet

33,720 

32,310 

28,770

566,600

24,770 

33,870 

54,350 

52,200 

73,810 

93,130 

46,020 

35,180 

25,230

533,400

* Vinter discharge measurement made on this day.

a Ho gage-height record; discharge estimated.

Note. Stage-discharge relation affected by ice Dec. 20 to Feb. 12 (no gage-height record Feb. 10). 

Backwater from Similkameen River May 12 to July 10j discharge computed on basis of gage-height record 

and fall. Negative sign indicates reverse flow.
OKANOGAN RIVER BASIN 305

Okanogan River near Tonasket, Wash. 

(International gaging station)

Location.--Water-stage recorder, lat. 48°38'00", long. 119°27'50", in lot 3, sec. 8, T. 

36 N., R. 27 E., 1,000 feet upstream from Chewiliken Creek and 5? miles south of 

Tonasket.

Drainage area. 7,060 square miles (revised).

Hecords available. April 1929 to September 1950. May 1911 to September 1925 (equivalent 

records at site a quarter of a mile upstream from Salmon Creek at Okanogan, published 

as Okanogan River at Okanogan) in reports of Geological Survey. June 1911 to September 1933 (monthly records only) in State Water-Supply Bulletin 5.

Average discharge.--35 years (1911-25, 1929-50), 2,807 second-feet.

extremes.--Maximum discharge during year, 29,600 second-feet June 18 (gage height, 18.66 

I'eet); minimum, 722 second-feet Sept. 22 (gage height, 4.96 feet).

1911-25, 1929-50: Maximum discharge, 40,900 second-feet May 31, 1948 (gage height, 

21.79 feet, from floodmark); minimum recorded, 126 second-feet Sept. 5, 1931 (gage 

height, 3.43 feet).

Remarks --Records excellent except those for periods of ice effect or shifting control, 

which are fair. Many diversions above station for irrigation. Flow subject to natural 

regulation by several lakes and to some regulation by Okanagan Lake as an aid to navigation. Some diurnal fluctuation at low flow caused by power plant on Similkameen 

River.

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

United States under agreement with Canada.

Revisions (water years).--W 862: 1937.

Rating table water year 1949-50, except periods of Ice effect or shifting control 

(gage height, In feet, and discharge, In second-feet)

5.1 790 7.0 2,330 1O.O 6,910 14,0 15,700 

5.5 1,010 7.5 2,920 11.0 8,850 16. O 21,2OO 

6.0 1,350 8.0 3,590 12.0 11,000 18.0 27,2OO 

6.5 1,800 9.0 5,140 13. O 13,200 18.6 29,200

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,160 

1,160 

1,160 

1,160 

1,200

1,160 

1,200 

1,240 

1,200 

1,200

1,240 

1,310 

1,310 

1,350 

1,350

1,310 

1,520 

1,660 

1,520 

1,430

1,350 

1,310 

1,350 

1,350 

1,270

1,270 

1,310 

1,310 

1,310 

1,800 

1,950

Nov.

1,800 

1,750 

1,700 

1,660 

1,660

1,610 

1,560 

1,520 

1,520 

1,520

1,480 

1,480 

1,480 

1,480 

1,48C

1,520 

1,700 

1,610 

1,560 

1,610

1,750 

1,660 

1, 610 

1,660 

1,950

2,160 

3,120 

7,960 

7,290 

5,140

Dec.

4,330 

*4,030 

4,330 

3,880 

3,660

3,520 

3,240 

2,980 

2,800 

2,740

2,680 

2,500 

2,330 

2,330 

2,280

2,280 

2,280 

2,100

1,900 

1,750

1,700 

1,700 

1,700 

1,900 

2,160

1,950 

1,800 

1,950 

2,000 

1,750 

1,750

Jan.

1,700 

1,300 

1,130 

1,070 

1,060

1,080 

1,100 

1,160 

1,240 

1,270

1,310 

1,290 

1,200 

1,100

1,000

980 

1,000 

1,070 

1,170 

1, 230

1,270 

1,300 

1, 150 

1,030 

1,060

1,200 

1,230 

1,150 

1,050 

1,100 

1,160

Feb.

1,080 

1,000 

1,000 

1,100 

1,190

1,300 

1,400 

1,400 

1,350 

1,400

1,450 

1,470 

1,490 

1,500 

1,570

1,700 

1,900 

2,000 

2,050 

1,950

1,850 

1,720 

1,720 

1,750 

1,850

2,100 

1,850 

*1,750

Month

Octo 

Nove 

Dece

Ca

janu 

Pebr 

Marc 

Aprl

MflV

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

1,700 

*1,630 

1,800 

2,100 

2,450

2,380 

2,440 

2,380 

2,330 

2,380

2,330 

2,220 

2,220 

2,500 

2,500

2,560 

2,620 

2,680 

2,680 

2,620

2,560 

2,560 

2,560 

2,560 

2,500

2,500 

2,440 

2,440 

2,380 

2,440 

2,380

Apr.

2, 

2, 

2, 

2,

2,

2, 

2,

a2, 

a2, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2,

2, 

2,

2,

2, 

3,

2, 

2,

2, 

2, 

2, 

2, 

2,

Secondfoot-days

41,420 

66,000 

78, 300

1,351,220

36,160 

43,890 

73,840 

77,260 

271,630 

580,700 

190,700 

60,940 

28,905

1,549,745

Peak discharge (base, 8,000 sec .-ft .) .--Nov. 28 (5 p.m

380 

380 

380 

380 

330

440 

620 

600 

540 

500

500 

500 

620

Soo

500

560 

620 

280 

280 

280

440 

920 

050 

980 

920

860 

800 

740 

680 

680

May

2,740 

2,860 

3,310 

3,380 

3,450

3,520 

3,520 

3,520 

3,450 

3,880

5,140 

6,910 

8,450 

10,300 

11,600

12,500 

12,800 

12, 500 

11,600 

10, 500

10, 100 

10, 300 

11,800 

11,600 

11,200

11,400 

12,500 

14,200 

14,700 

14,200 

13,700

Maximum

1,950 

7,960 

4,330

27,200

1,700 

2,100 

2,680 

3,050 

14, 700 

29,200 

14,200 

3,050 

1,310

29,200

June

13,700 

14,200 

14,700 

15,400 

17,000

18,200 

18, 500 

17,200 

15,700 

15, 400

15,700 

16,400 

18,000 

20,000 

22,400

25,400 

28,200 

29,200 

29,200 

27,800

26,900 

26,000 

24,200 

21,200 

18,000

15,700 

14, 700 

14,000 

13,700 

14,000

July

14,200 

13,200 

12,300 

11,400 

10,700

9,880 

9,050 

8,450 

7,670 

7,100

6,540 

5,820 

5,480 

5,140 

4,970

4,650 

4,490 

4,180 

4,030 

4,180

4,030 

3, 73C 

3,59C 

3,52C 

3,38C

3,24C 

3,05C 

2.92C 

2,98C 

3,45C 

3,38C

Aug.

3,050 

2,860 

2,740 

2,680 

2,560

2,500 

2,380 

2,330 

2,160 

2,O6O

2,000 

1,950 

1,900 

1,850 

1,800

1,750 

1,900 

1,950 

1,850 

1,750

1,700 

1,610 

1,430 

1,660 

1,660

1,610 

1,560 

1,520 

1,430 

1,390 

1,350

Minimum K^an

1,160 1,336 

1,480 2,200 

1,700 2,526

1,010 3,702

980 1,166 

1,000 1,568 

1,630 2,382 

2,280 2,575 

2,740 8,762 

13,700 19,360 

2,920 6,152 

1,350 1,966 

815 964

815 4,246

.) 1O.10O sec. -ft.; June 18 (7:45

Sept.

1,310 

1,270 

1,240 

1,200 

1,07O

1,040 

1,010 

980 

950 

950

922 

922 

922 

895 

895

895 

895 

868 

868 

868

840 

840 

815 

840 

840

868 

922 

950 

1,010 

1,010

Runoff In 

acre-feet

82,160 

130,900 

155, 300

2,680,000

71,720 

87,050 

146,500 

153, 200 

538, 800 

1,152,000 

378,200 

120,900 

57,330

3,074,000

a.m. )

£3,O»J>J "3eu.~ -LI*.

* Winter discharge measurement made on this day.

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

Note. Stage-discharge relation affected by ice Dec. 18-22, Jan. 2-6, Jan. 11 to Mar. 5. 

control method used Apr. 13 to June 4.

Shifting-
306 OKANOGAN RIVER BASIN

Similkameen River near Nighthawk, Wash. 

(International gaging station)

Location.--Water-stage recorder, lat. 48°59'10", long. 119°37'00", in NW-p sec. 7, T. 40 

HI. , K. 26 E., about 1-jj miles downstream from Nighthawk and 12 miles upstream from 

mouth.

Drainage area. 3,550 square miles (revised).

Kecorns available. September 1928 to September 1950. May 1911 to September 192B (mean 

monthly discnarge including that of Oroville-Tonasket Irrigation District canal) at 

site 4 miles upstream from Oroville, published as Similkameen River near Oroville.

Average discharge.--39 years, 2,165 second-feet.

Extremes.--Maximum discharge during year, 29,700 second-feet June 17 (gage height, 15.4?

 feet); minimum, 500 second-feet Sept. 23, 24 (gage height 3.24 feet).

1928-50: Maximum discharge, 38,700 second-feet May 30, 1948 (gage height, 17.62 

feet); minimum, 120 second-feet Jan. 6, 1930 (gage height, 2.05 feet).

Remarks. Records good except those for periods of ice effect or fragmentary gage-heighfrecord, which are fair. Flow at high stages regulated by natural diversion im;o and 

release from Palmer Lake. Small diversions above station for irrigation.

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

the united States under agreement "fith Canada.

Rating table, voter year 1949-50, except period of ice effec 

(gage height, In feet, and discharge, In second-feet)

3.3 530 5.0 1,890 8.0 6,230 12.0 16,900 

3.6 710 5.5 2,460 9.0 8,330 13.0 20,200 

4.0 990 6.0 3,090 10.0 10,900 14.0 23,800 

4.5 1,410 7.0 4,510 11.0 13,800 15.3 28,900

Discharge, In second-feet, water year October 1949 to September 1950

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

Oct.

644

626 

614 

608 

602

602

6o2 

608 

608 

608

614 

662 

698 

724 

724

724

836 

871 

878

850

822 

801 

780 

759 

745

731 

745 

759 

1,010 

1,500 

1,280

Nov.

1,150 

1,110 

1,110 

1,070 

1,010

990 

969 

941 

934 

920

892 

878 

892 

885 

913

1,150 

1,110 

1,030 

1,040 

1,230

1,150

1,070 

1,070 

1,360 

1,540

2,460 

4,250 

8,810 

5,680 

4.510

Dec.

*3,770 

3,630 

3,770 

3,280 

3,160

2,900 

2,640 

2,340 

2,160 

2,220

2,000 

1,790 

1,740 

1,740 

1,690

1,690 

1,640 

1,540 

1,400 

1,250

1,110 

1,110 

1,100 

1,100 

1,000

1,150 

1,230 

1,230 

1,150 

1,150 

1,150

Jan.

1,070 

927 

820 

760 

720

710 

700 

700 

700 

720

710 

710 

700 

700 

700

690 

£80 

680 

690 

710

750 

800 

*820 

840 

820

800 

770 

740 

720 

700 

670

Feb.

660 

660 

660 

660 

670

680 

690 

700 

710 

720

740 

740 

750 

*750

760

760 

760 

770 

770 

780

780 

780 

773 

766 

766

773 

773

766

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ua

lendar year 1949

ter year 1949-50 .......................

Mar.

731

704 

698 

704 

724

780 

829 

850 

850 

836

808 

780 

738 

717

710

710 

710 

717 

738 

731

724 

717 

710 

710 

704

698 

698 

692 

692 

686 

680

Apr.

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot-days

23,635 

52,124

58,830

1,076,892

23,227 

20,567 

22,776 

30,381 

236,410 

539,300 

165,010 

43,973 

18,544

1,234,777

Peak discharge (base, 8,000 seo.-ft .) .--Nov 28 {4:30 a

674 

674 

668 

674 

674

674 

710 

717 

717 

717

710 

710 

724 

766 

829

871 

913 

969

020 

060

150 

320 

460 

540 

590

590 

590 

590 

540

540

May

1,590 

1,690 

*1,840 

1,940 

2,160

2,220 

2,220 

2,280 

2,400 

2,900

3,910 

5,500 

7,430 

9,310 

10,900

12,000 

12,000 

11,700

10,600 

9,560

8,810 

9,310 

10,300 

9,820 

9,820

10,900 

12,300 

13,500 

13,200 

12 , 600 

11,700

Maximum

1,500 

8,810 

3,770

26,500

1,070 

780 

850 

1,590 

13,500 

28,900 

12,600 

2,460 

822

28,900

June

12,300 

13,500 

14,100 

f 15, 600 

f!7,200

17,800 

15,600 

14,100 

13,500 

f!3,800

f 14, 700 

f!6,200 

f!9,200 

22,000 

25,300

28,500 

28,900 

28,100 

26,500 

25,000

24,200 

23,100 

19,500 

15,900

13,500

12,300 

12,000 

11,700 

12,300 

12,900

July

12,600 

11,40C 

10 , 60C 

9 ',820 

9,310

8.81C 

8,100 

7.43C

6,61C 

6,230

5,68C 

5.16C 

4,67C 

4,510 

4,360

4,060 

3,910 

3,630 

3,490 

3,630

3,420 

3,160 

3,020 

2,900 

2,760

2,640 

2,460 

2,340 

2,580 

3,020 

2,700

Aug.

2,460 

2,220 

2,060 

2,000 

1,890

1,790 

1,740 

1,690 

1,590

1,500

1,500 

1,460 

1,410 

1,320 

1,320

1,320

1,500 

1,360 

1,280 

1,190

1,150 

1,070 

1,070 

1,110 

1,150

1,110 

1,040 

983 

934 

899 

857

Minimum Mean

602 762 

878 1,737 

1,000 1,898

560 2,950

670 749 

660 735 

680 735 

668 1,013 

1,590 7,626 

11,700 17,980 

2,340 5,323 

857 1,418 

500 618

500 3,383

Sept.

822 

808 

780 

752 

724

717 

«98 

680 

662 

644

632 

620 

608 

590 

584

572 

566 

548 

536 

530

520 

515 

505 

500

510

525

554 

620 

620 

602

Runoff In 

acre-feet

46,880 

103,400 

116,700

2,136,000

46,070 

40,790 

45,180 

60,260 

468,900 

1,070,000 

327,300 

87,220 

36,780

2,449,000

.m.) 10,300 seo.-ft.; May 17 (12 to 5 a.m.)

i.m.) 18,200 sec.-ft.; June 17 (4 a.m.) 29,700 seo.-ft. 

* Winter discharge measurement made on this day. 

f Computed on basis of partly estimated gage-height record. 

Note..--Stage-discharge relation affected by ice Dec. 19, 20, 22-25, Jan. 3 to Feb. 21.
METHOW RIVER BASIN 307

Methow River at Twisp, Wash.

Location (revised).--Water-stage recorder, lat. 48°21'40", long. 120°06'50", in sec. 17, 

T. S3 N., K. iia E., a quarter of a mile downstream from Twisp River and 0.3 miles east 

of center of Twisp.

Drainage area.--1,330 square miles.

Records available.--June 1919 to September 1929, October 1933 to September 1950.

Average discharge .--"7 years, 1,245 second-feet.

Extremes.--Maximum discharge during year, 19,800 second-feet June 18 (gage height, 8.95 

feet); minimum, 158 second-feet Sept. 24.

1319-29, 1933-50: Maximum discharge, 40,800 second-feet May 29, 1943 (gage height, 

12.94 feet), from rating curve extended above 18,000 second-feet on basis of slope-area 

determination of peak flow; minimum observed, 134 second-feet Sept. 4, 5, 1926, Sept. 9, 

10, 1929, tut may have been less during period of ice effect Jan. 6 to Mar. 4, 1937.

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

those for periods of ice effect, which are poor. Water diverted above station for irrigation by two canals of Methow Valley Irrigation District, by Risley ditch, and by many 

other ditches.

Rating table , water year 1949-50, except periods of shifting control or ice effect, 

(gage height, in feet, and discharge, in second-feet)

0.3 335

.5 425

.7 525

1.0 700

Oct. 1 to June 13

1.5 1,040

2.0 1,450

3.0 2,490

4.0 3,300

5.0 5,680

6.0 7,820

7.0 10,600

8.0 13,900

2.3

2.4 

2.6

150

230

420

650

1,070

June 14 to Sept. 30

3.5 1,740

4.0 2,700

4.5 3,860

5.0 5,200

6.0 8,100

7.0 11,600

8.0 15,600

9.0 19,800

Discharge, In second-feet, water year October 1949 to September 19^0

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29

30 

31

Oct.

319 

307 

315 

319 

327

327

544 

353 

358 

358

353 

348 

348 

353 

358

348 

353

353 

353

353

353 

358 

348 

353 

358

358 

362 

394 

430 

420 

412

Nov.

412

412 

407 

402 

398

394 

389 

389 

40?

402

407 

430 

435 

455 

460

450 

445 

440 

445 

450

445 

450 

470 

495 

542

646 

2,200 

2,200 

1,740 

1,450

Dec.

1,320 

1,320 

*1,200 

1,120 

1,080

970 

935 

865 

851 

781

7OO 

700 

690 

690 

690

670 

650 

620 

580 

550

570 

570 

560 

560 

540

550 

560 

580 

590 

574 

558

Jan.

520

460 

380 

4OO

430

430 

4 2O 

420 

410 

410

400 

400 

400 

400 

390

390 

39O 

390 

380 

380

380 

380 

380 

*380 

380

380 

380 

380 

380 

380 

380

Feb.

380 

380 

380 

38O 

380

380 

380 

390 

390 

400

4OO 

4OO 

390 

380

380

370 

36O 

350 

340 

34O

330 

330 

320 

310 

300

3OO 

300 

290

Month

Ooto 

Hove

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

290 

290 

*290 

290 

290

300 

310 

320 

330 

330

350 

353 

362 

358

358

362 

380 

384 

380 

380

384 

384 

389 

394 

394

398 

402 

402 

402 

4O7 

412

Apr.

420 

435 

445

455 

480

536 

547 

558 

564 

574

604 

652 

754 

851 

935

1,000 

,120 

,120 

,160 

,320

,590 

,590 

,5OO 

,450 

1,360

1,320 

1,280 

1,240 

1,240 

1,320

Secondfoot-days

10,993 

19,067 

23,194

550,129

12,380 

10,020 

11,075 

28,420 

147,590 

330,860 

122,240 

26,8OO 

7,701

750,340

May

1,500 

1,690 

1,740 

1,740 

1,740

1,690 

1,690 

1,690 

1,890 

2,430

3,360 

4,750 

6,490 

7,130 

7,350

7,130 

6,910 

5,880 

5,110 

4,930

5,110 

6,490 

6,280 

5,680 

5,880

6,49O 

7,580 

7,350 

6,910 

6,490 

6,490

Maximum

430 

2,200 

1,320

14,700

520 

400 

412 

1,530 

7,580 

18,800 

9.OOO 

1,330 

464

18,800

June

7,130 

7,580 

8,330 

9.7OO 

10,900

9,700 

8,O70 

7,350 

6,910 

6,910

8,330 

1O,9OO 

13 , 9OO 

17,600 

18, OOO

16,800 

18,800 

18,000 

16,4OO 

16,000

15,600 

13,200 

9,600 

8,100 

7,050

6,600 

6.9OO 

7,500 

9,000 

1O,000

July

9,OOC 

8,10C 

7,50C 

7.50C 

7.50C

7,050 

6.46C 

5,620 

4,920

4,640

3,990 

3,500 

3,380 

3,500 

3,380

3,030 

2,810 

2,720 

3,030 

2,830

2,460 

2,340 

2,280 

2,220 

2,170

2,O7O 

1,900 

1,740 

1,700 

1,530 

1,370

Minimum

307 

389 

540

230

380 

290 

290 

420 

1,500 

6,600 

1,370 

486 

166

166

Aug.

1,330 

1,290 

1,230 

1,200 

1,150

1,070 

1,040 

995 

965 

906

892 

892 

892 

864 

878

995 

906 

850 

78O 

754

741 

715 

741 

715 

689

650 

602 

566 

519 

497 

486

Me%n

355 

636 

748

1,507

399 

358 

357 

947 

4,761 

11,030 

3,943 

865 

257

2,056

Sept.

464 

442

400 

390 

390

330 

311 

302 

275 

248

248 

230 

222 

222

206

198 

198 

190 

174 

174

166 

166 

166 

166 

190

214 

230 

257 

266 

266

Runoff In 

acre-feet

21,800 

37,820 

46, OOO

1,091,000

24,560 

19,870 

21,970 

56,370 

292,700 

656,300 

242,500 

53,160 

15,270

1,488,000

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 12-15, 17-29, Jan. 1 to Mar. 11 (no gageheight record Feb. 17 to Mar. 5; discharge computed on basis of records for nearby streams and 

weather records). Shifting-control method used Oct. 1-29.
308 CHELAN RIVER BASIN

Stehekin River at Stehekin, Wash.

Location.--Water-stage recorder, lat. 48°19'50", long. I20°41'40", in SE^ sec. 26, T. 33, 

tJY, K. 17 E., 1,200 feet upstream from Boulder Creek and 2 miles upstream from Lake 

Chelan and Stehekin.

Drainage area.--372 square miles, including that of Boulder Creek.

Records available.--October 1910 to October 1915, January 1927 to September 1950 (includes 

flow or .boulder Creek).

Average discharge.--28 years, 1,342 second-feet.

Extremes.--Maximum discharge during year, 18,400 second-feet Nov. 27 (gage height, 28.81 

feet); minimum, 247 second-feet Feb. 20, 21 (gage height, 18.59 feet).

1910-15. 1927-50: Maximum discharge, 18,900 second-feet May 29, 1948 (gage height, 

29.00 feet), by slope-area method; minimum, 56 second-feet Jan. 21, 1950.

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

At very high stages small part of flow is diverted above gage by natural sloughs; flow 

diverted included in daily discharge.

Cooperation.--Gage-height record collected in cooperation with, and six discharge measurements furnished by Washington Water Power Co.

Revisions (water years).--W 412; 1914.

Discharge, in second-feet, water year October 1949 to September 19'50

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

546 

498 

465 

588 

564

510 

475 

445 

600 

6O7

642 

677 

576 

534 

719

656 

576 

528 

486 

465

440 

430 

430 

421 

430

430 

465 

2,380 

1,Z80 

986 

858

Nov.

826 

796 

740 

712 

663

849 

S8Z 

552 

546 

5Z2

576 

670 

954 

1,420 

1,230

1,O3O 

946 

970 

1,010 

946

882 

882 

1,000 

1,370 

Z,570

3,590 

11,900 

5,020 

3,500 

2,700

Dec.

Z,440 

2,840 

2,250 

2,010 

1,780

1,620 

1,470 

1,370

1,280 

1,140

1,100 

1,040 

978 

922 

898

842 

810 

775 

698 

684

684 

670 

663 

614 

607

594 

588 

930 

994 

890 

810

Jan.

761 

684 

614 

a580 

a560

a570 

576 

546 

516 

498

470 

460 

430 

445 

403

357 

373 

361 

349 

314

a310 

a310 

a310 

a310 

a3 10

3310 

a310 

a310 

314 

307 

297

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber

lendar year 1949 

ary

ember .............. ......

ter year 1949-50 . . ......

Feb.

Z91 

284 

275 

272 

270

267 

Z64 

261 

a260 

a260

3258 

a256 

aZ56 

3Z54 

a252

3250 

256 

253 

253 

253

253 

253 

256 

270 

272

284 

294 

Z72

Secondfoot-days

19,707 

49,754 

34,991

584,342

13,Z65 

7,399 

11,717 

21,851 

84,840 

232,150 

169,850 

62,060 

25,168

732,752

Msr.

258 

256 

Z91 

470 

486

430 

408 

403 

390 

381

369 

361 

353 

345 

345

361 

390 

412 

412 

398

394 

394 

390 

385 

381

381 

381 

377 

369 

373 

373

Maximum

2,380 

11,900 

2,840

11,900

761 

294 

486 

1,180 

4,350 

13,500 

9,640 

3,570 

1,520

13,500

Apr.

394 

398 

398 

398 

408

430 

435 

440 

445 

455

486 

576 

677 

698 

747

84Z 

898 

898 

922 

1,050

1,180 

1,140 

1,050 

994 

954

906 

874 

866 

906 

986

May

1,050 

1,100 

1,100 

1,140 

1,140

1,140 

1,180 

1,230 

1,520 

1,950

2,640 

3,570 

4,190 

4,350 

4,350

3,870 

3,570 

3,050 

2,570 

2,380

2,910 

3,800 

3,340 

3,050 

3,120

3,570 

4,190 

3,800 

3,500 

3,200 

3,270

Minimum

421 

5Z2 

588

180

Z97 

250 

Z56 

394 

1,050 

3,640 

2,250 

1,230 

4Z6

250

June

3,720 

4,350 

4,680 

5,370 

5,910

4,680 

4,030 

3,640 

3,720 

4,030

5,020 

7,470 

9,410 

10,300 

9,870

9,640 

10,800 

11,300 

12,200 

13,500

13 , 500 

10 , 800 

8,530 

6,870 

5,910

6,100 

6,870 

8,530 

10,600 

10,800

Mean

636 

1,658 

1,129

1,601

428 

264 

378 

728 

2,737 

7,738 

5,479 

2,002 

839

2,008

July

9,640 

8.53C 

8.10C 

8,970 

9,19C

8.75C 

7,680 

6,480 

6,100 

5,730

4,680 

4,510 

4,850 

5,190 

5,020

4,510 

4,350 

4,680 

5,550 

4,680

4,350 

4,680 

4,850 

5,020 

4,850

4,510 

3,870 

3,270 

2,700 

2,310 

2,250

Per 

square 

mile

1.71 

4.46 

3.03

4.30

1.15 

.710 

1.02 

1.96 

7.36 

20.8 

14.7 

5.38 

2.26

5.40

Aug.

2,440 

2,700 

2,380 

1,950 

1,780

1,780 

1,900 

1,780 

1,840 

1,840

1,900 

1,950 

1,780 

1,680 

3,570

3,120 

2,310 

2,070 

2,010 

2,130

2,130 

2,070 

2,380 

2,010 

1,780

1,620 

1,620 

1,520 

1,420 

1,370 

1,230

Sept.

1,280 

1,370 

1,470 

1,520 

1,280

1,140 

978 

882 

834 

826

803 

782 

789 

775 

768

754 

684 

635 

621 

582

600 

621 

588 

635 

962

874 

656 

558 

475 

426

Runoff

Inches

1.97 

4.97 

3.50

58.42

1.33 

.74 

1.17 

2.18 

8.48 

23.21 

16.98 

6.20 

2.52

73.25

Peak discharge (base, 5,000 sec .-ft .) .--Nov. 27 (6 a.m.) 18,400 sec. -ft.; June 5 (2:30

Acre-feet

39,090 

98,690 

69,400

1,159,000

26,310 

14,680 

23,240 

43,340 

168,300 

460,500 

336,900 

123,100 

49,920

1,453,000

a.m.) 6,290

.m.) 5,550 sec.-ft.; July 18 (11 p.m.) 6,10O sec.-ft.; July 24 (10 p.m.) 5,550 se.-j.-ft. 

a No gage-height record; discharge computed on basis of weather records. 

Note. Shifting-control method used Oct. 1 to Nov. 26, Kay 13 to June 4, June 24 to Sept. 30.
CHELAN RIVER BASIN 309

Lake Chelan at Chelan, Wash.

Drainage area. 950 square miles.

Records available.--September- 1897 to December 1899, January to June 1905, December 1910 

to beptemoer i960 .

Extremes.--Maximum slevation during year, 1,100.00 feet Aug. 12; minimum, 1,089.39 feet

1897-99, 1905, 1310-50: Maximum elevation, 1,100.05 feet July 19, 1947; minimum, 

1,076.78 feet Jan. 27, 38, Dec. 2, 3, 1898.

Remarks.--Reservoir la formed by lew concrete dam at lake outlet completed Sept. 3, 1927. 

Capacity, 676,100 acre-feet oetween elevations 1,079 and 1,100 feet. Regulation between these elevations is allowed by stipulation of Federal Power Commission. Water 

is used for power development. Elevation of lake maintained between 1,092 and 1,100 

feet during period Aug. 16 to Sept. 15 for scenic effect and recreational purposes.

Cooperation.--Gage-height record collected in cooperation with Washington Water Power Co.

Elevation, in feet, water year October 1949 to September 1950

Day Oct.

lj 95.76

2 95.67

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

95.53

95.42

95.35

95.23

95.11

95.01

94.93

94.81

94.73

94.66

94.52

94.41

94.36

94.24

94.13

94.02

93.89

93.77

93.65

93.55

93.44

93.36

93.28

93.18

93.07

93.14

93.13

93.07

Nov.

92.94

92.85

92.79

92.73

92.65

Dec.

94.42

94.67

94.85

95.01

95.15

92. 56 I 95.23

92.45

92.38

92.31

92.23

92.22

92.28

92.30

92.35

92.38

92.36

92.32

95.29

95.35

95.44

Jan

94.78

94.79

94.72

S4.65

94.56

94.51

94.35

94.13

93.89

95.531 93.79

95.59 93.70

95.54

95.46

95.40

95.36

95.30

95.22

92.29 95.17

92.27

92.23

92.19

92.12

92.10

92.13

92,24

9E.36

93.14

93,76

94.04

34.23

95.09

95.02

94.93

94.88

94.81

94.77

94.70

94.73

94.76

94.73

94.75

94.74

93.01J - j 94.77

93.59

93.50

93.41

93.30

Feb.

91.71

91.30

91.01

90.80

90.68

90.69

90.63

90.62

90.60

90.58

90.56

90.57

90.64

90.66

90.68

i 93.22 90.70

93.10

93.00

92.94

92.90

92.86

92.87

92.82

92.72

92.64

92.60

92.51

92.41

92.30

92.19

92.06

90.71

90.73

90.75

90.75

Mar.

90.38

90.34

90.31

90.30

90.33

90.31

90.27

90.22

90.20

90.18

90.12

90.09

90.06

90.01

89.97

89.92

89.92

89.89

89.91

89.86

90.71] 89.82

90.67

90.62

90.61

90.58

90.53

90.53

90.44

-

_

-

89.80

89.76

89.74

89.71

89.69

89.68

89.62

89.57

89.54

89.51

Apr

89.52

89.52

89.50

89.44

89.41

39.43

89.40

89.41

89.46

89.47

89.45

89.47

89.50

89.50

89.56

89.63

89.70

89.70

89.73

89.80

89.86

89.92

90.01

90.04

90.09

90.05

90.05

90.08

90.09

90.14

-

May

90.25

90.32

90.37

90.44

90.52

90.59

90.67

90.76

90.83

90.93

91.10

91.31

91.40

91.50

91.50

91.48

91.43

91. 3S

91.24

91.13

91.04

91.07

91.07

91.02

90.99

90.99

91.07

91.11

91.17

91.39

91.63

June

91.89

92.20

92.58

93.00

93.55

93.99

94.32

94.63

94.87

95.11

95.43

95.90

96.45

96.97

97.35

97.50

97.70

97.89

98.02

98.18

98.40

98.40

98.27

98.18

98.13

98.24

98.47

98.80

99.12

99.32

-

July

99.28

99.12

99.03

99.13

99.30

99.42

99.49

99.51

99.61

99 . 73

Aug.

99.75

99.88

99.94

99.93

99.96

99.91

99.89

99.88

99.90

99.95

99.70] 99.97

99.69

99.76

99.74

99.71

99.68

99.76

99.79

99.77

99.70

99.67

99.78

99.82

99.86

99.90

99.90

99.88

99.89

99.86

99.78

99.72

99.98

99.97

99.90

99.94

99.94

99.87

99.80

99.78

99.82

99.92

99.93

99.92

99.91

99.90

99.88

99.88

99.85

99. 81

99.77

99.69

Sept.

99.64

99.59

99.59

99.58

99.50

99.49

99.44

99.41

99.39

93.38

99.37

99.35

99.33

99.31

99.32

99.31

99.35

99.40

99.40

99.38

99.35

99.34

99.34

99.31

99.31

99.28

99.18

99.04

98.91

98.82

-

Note. --Add 1,000 fast to obtain elevation above mean sea level. Daily elevation? for Feb. 6, 7,

Apr^ Tl-18 computed from powerhouse record; June 1-5 computed from hourly readings on Lakeside

selsyn indicator.

Monthly elevation and contents, water year October 1949 tc September 195O

Date

Sept. 30. ...................

Water -rear 1949-50. ......

Elevation 

(feet)t

1.098.69

Contents 

(acre-feet)

632,150

Change in contents 

during month 

(acre-feet)

-30,510

+95,820

t Elevations are 12 

nd at Chelan.

ecords for stations at Stehekln
310 CHELAN RIVER 

Chelan River at Chelan, Wash.

Location. --Water-stage recorder, lat. 47°50'05", long. 120°00'40", in SE^r sec. 12, T. 27 

M., K. 22 E., in forebay upstream from control dam at Chelan. Datum of gage is at 

mean sea level, subject to correction to datum of 1929.

Drainage area.--950 square rnilec.

Records available.--October 1903 to September 1950.

Average discharge.--47 years, 2,012 second-feet (adjusted).

Extremes.--Maximum daily discharge during year, 14,100 second-feet June 22; minimum daily, 

bi second-feet Pet. 12, 19, Apr. 9.

1903-50: Maximum daily discharge, 16,000 second-feet May 30, 194?; no flow part of 

day Jan. 30, 1917, when lake outlet was "blocked with ice, ana at other times owing to 

artificial regulation.

Remarks.--Unmeasured water that is diverted for irrigation above station is small percentage of total runoff. Washington Water Power Co. diverts water at Chelan for power and 

irrigation, which quantity is included in records of daily discharge. Flow regulated 

by Lake Chelan (see preceding page).

Cooperation.--Records of water used for power and irrigation furnished by Washington Water 

fewer Go,

Revisions (water years).--W 482: 1904-13. W 612: 1924.

Discharge, in second-feet, water year October 1949 to September 1950

Day

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2,210 

2,210 

2,200 

2,190 

2,190

2,180

2,200 

2,140 

2,080 

2,220

2,030 

1,970 

2,030 

2,130 

2,220

2,020 

2,210 

2,230 

2,230 

2,230

2,220 

2,240 

2,220 

2,220 

2,230

2, 200 

2,160 

2,050 

2,240 

2,120 

1,930

Nov.

2,250 

2,180 

2,190 

2, 160 

2,250

2,230 

2,250 

1,880 

1,840 

1, 940

1,550 

617 

193 

1,210 

1,480

1, 630 

1,570 

1,650 

1,650 

1, 720

1,770 

2,220 

1,840 

1,560 

1,580

1,600 

1,120 

1,140 

944 

1,260

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wat

endar year 1949

er year 1949-50

Dec.

321 

464 

157 

55

991

1,020 

1,030 

314 

224 

172

1,040 

2,090 

2,230 

2,180 

2,220

2,130 

2,010 

1,940 

1,930 

2,120

2,220

2,070 

1,960 

2,050 

1,360

1,430 

1, 450 

1,470 

1,310 

1,310 

1,230

Jan.

286 

1,290

189 

2,230

2,230

3,040 

4,000 

4,590 

4,410 

2,020

2,100 

2.210 

2,230 

2,210 

'2,250

2,230 

2,200 

2,180 

2,190 

2,060

1,520 

1,260 

1,400 

1,560 

1,590

1,690 

1,710 

2,240 

2,240 

2,220 

2.200

Feb.

7,970 

6,550 

4,460. 

4, 070 

842

1, 500 

932 

708 

833 

1,080

233 

51

530 

303 

251

194 

157 

252 

51 

667

1,430 

1,440 

1,420 

1,420 

1,290

953 

1,410 

1,520

Mar.

1,430 

1,420 

,410 

,290 

887

,45O 

,420 

,510 

1,380 

1,430

1,470 

1,170 

1,450 

1,530 

1, 460

1,400 

1,420 

1,420 

1,220 

1,440

1,480 

1,440 

1, 460 

1,420 

1,250

994 

1,450 

1,440 

1,380 

1,440 

1,390

Observed

Discharge in 

second-feet

Maximum

2,240 

2,250 

2,230

5,870

4,590 

7,970 

1,530 

1,440 

7, 660 

14, 100 

13,500 

4,350 

2,180

14, 100

Minioiujn

1,930 

193 

55

55

189 

51 

887 

51

94 

1,250 

2,750 

1,200 

82

51

Mean

2,160 

1,649 

1,371

2,047

2,125

1,512 

1,379 

955 

4,040 

6,713 

6,451 

2,477 

1,355

2,693

Runoff 

in 

acre- feet

132,800 

98,150 

84,290

1,482,000

130,700 

33,950 

84, 800 

57,430 

248, 400 

399,400 

395.700 

152,300 

80, 650

1,950,000

Apr.

1,360 

759 

1,410 

1,440 

1,390

1,130 

942 

814 

51 

984

1,140 

961 

1,110 

1,140 

605

83 

1,220 

1,030 

861 

1,040

1,330 

855 

83

1,290 

1,280

1,350 

1,350 

1,320 

536

89

May

1,380 

1,380 

758 

708 

705

634 

54 

748 

948 

802

1,020 

4, 260 

5,410 

6,900

7, sec

7,650 

7,660 

7,640 

'6,730 

6,490

5,970 

6,310 

5,920 

5,970 

5,840

5,S40 

5,980 

5,940 

3,730 

1,450 

1,510

Change In 

contents in 

Lake Chelan 

(acre-feet)

-91,280 

+44, 550 

+13,360

+187, 400

-31,060 

-49,250 

-31,640 

+22,890 

+50, 870 

+244, 700 

+13,770 

-550 

-30,510

+95,820

June

1,650 

1,550 

1,610 

1,250

1,590

1,620 

1,640 

2,120 

2,130 

2,140

2,150 

3,020

5,400 

8,410 

11,300

12,500 

12,800 

13, 100

13,500 

13,500

13,900 

14,100 

12,000 

9,150 

6,410

4, 540 

3,460 

4, 480 

7.860 

12,300

July

13,500 

13,200

9, ago

8,700 

8,850

8,930 

8,320 

6,530 

5,600

5. 960

6,150 

1,960 

5,430 

7,110 

6,860

4,190 

4,810 

6,110 

7,150 

6,270

4,310 

4,250 

5,740 

5,720 

5,760

5,770 

4,880 

3,960 

4, 280 

3,850 

2,750

Aug.

2,220 

2,3OO 

2,400 

2,430 

2.44O

2,440 

2,430 

2,420 

1,920 

2,670

2,260 

2,370 

2,690 

2,830 

3,610

4,280 

4,350 

3,270 

2,080 

1,380

1.200 

2,510 

2,950 

2,230 

2,160

2,170 

2,180 

2,090 

2,170 

2,160 

2,170

Sept.

2, iao

2,180 

2, 180 

1,950 

1,950

1, 640 

1, 110 

1,110 

1, lt.0 

1,100

1,110 

1, 100 

1,110 

769 

813

430 

82 

735 

944 

805

881 

886 

815 

1,300 

1,590

2,150 

2,150 

2,160 

2,150 

2,160

Adjusted for change In contents

Runoff 

in 

acre-fee

Discharge in 

second-feet

Per 

1 MeEU square 

mile

41,520 675 0.711 

142,800 2,400 2.53 

87, 6=50 1,588 1.67

1,659,000 2,305 2.43

39,540 F45 .579 

34,700 625 ,658 

53,160 665 .911 

80,320 1,350 1.42 

299,300 4,868 b.12 

644,100 10, £20 11.4 

410,500 6,676 7.03 

151,600 2,466 2.50 

50,140 £43 .887

2,046,000 2,E2B 2.97

Runoff

inches

0.82 

2.82

1.93

32.97

.78 

.SB 

1.05 

1.59 

5.91 

12.71 

8.10 

2.99 

.99

i 40.37

Note.--Discharges are combined flow of power conduit, irrigation diversion below dam and waste 

water. Change in contents based on 12 p.m. mean gage heights from stations at Purple Point and 

Chelan.
CHELAN RIVER BASIN 311

Railroad Creek at Lucerne, Wash.

Location.--Water-stage recorder, lat. 48 0 11'40", long. 120°35'50", In sec. 9, T. 31 N., R. 

IB~ET, half a mile upstream from mouth and half a mile southwest of Lucerne.

Drainage area.--64 square miles.

Records available.--December 1910 to June 1913, January 1927 to September 1950.

Average discharge.--24 years (1911-12, 1927-50), 192 second-feet.

Extremes.--Maximum gage height 7.06 feet Nov. 27, just prior to destruction of artificial 

control (discharge not determined); minimum recorded, 35 second-feet Mar. 12.

1910-13, 1927-50: Maximum discharge, 3,900 second-feet May 28, 1948 (gage height, 

8.1 feet, from floodmarks), by slope-area and contracted-opening method; minimum, less 

than 9.4 second-feet during period of ice effect Jan. 15-25, 1930.

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

record, or faulty intake action, which are poor. No diversion or regulation.

Cooperation.--Gage-height record collected in cooperation with, and six discharge measurements furnished by Washington Water Power Co.

Revisions (water years). W 1042: 1944. W 1122: 1936.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

69 

69 

69 

.79 

92

84 

77 

69 

96 

100

104 

110 

100 

90 

110

98 

87 

75 

66 

66

63 

66 

64 

63 

63

63 

66 

409 

232 

160 

112

Nov.

101 

101 

96 

75 

72

69 

66 

66 

63 

60

69 

88 

130 

152 

134

101 

92 

99

112 

100

92 

92

117 

117 

220

291 

1,190 

544 

454 

389

Dec.

294 

323 

256 

232 

214

196 

178 

166 

158 

145

135 

138 

130 

*125 

123

118 

115 

110 

100 

104

101 

95 

95 

94 

94

91 

95 

110 

110 

101 

94

Jan.

89

05

be s

b85 

83

81 

79 

76 

74 

71

68 

66 

64 

61 

58

56 

55 

54 

53 

53

53 

53 

53 

54 

53

52 

50 

52 

52 

52 

51

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194S 

ary

h ........... ... .........

st .

ember . .

ter year 1949-50 .......

Feb.

50 

49 

48 

47 

45

45 

45

45 

45 

45

45 

45 

45 

45 

45

*45 

45 

44 

44 

43

43 

43 

43

45 

47

47 

50 

47

Secondfoot-days

3,071 

5,352 

4,440

82,891

1,972 

1,275 

1,347 

2,750 

14,419 

30,009 

19,713 

9,840 

3,783

97,971

Mar.

45 

44 

45 

60 

66

64 

50 

45 

43

41

41 

39 

39 

37 

37

39 

43 

44 

45 

44

41 

41 

40 

39 

38

39 

41 

38 

38 

40 

41

Maximum

409 

1,190 

323

1,270

89 

50 

66 

145 

740 

1,800 

1,040 

640 

280

1,800

Apr.

45 

45 

45 

45 

47

50 

50 

51 

52 

54

56 

77 

86 

86 

89

96 

104 

101 

107 

128

145 

144 

140 

133

130

128 

123 

123 

130 

140

May

149 

154 

153 

154 

154

154 

156 

168 

200 

267

384 

582 

710 

740

710

682 

628 

552 

492 

461

592 

710 

628 

562 

562

602 

682 

655 

602 

587 

587

Minimum

63 

60 

91

32

50 

43 

37 

45 

149 

543 

260 

200 

68

37

June

655 

710 

770 

900 

1,100

9OO 

740 

655 

655 

655

802 

1,080 

1,400 

1,440 

1,360

1,300 

1,400 

1,500 

1,640 

1,800

1,400 

1,160 

835 

628 

552

543 

587 

682 

1,000 

1,160

Mean

99.1 

178 

143

227

63.6 

45.5 

43.5 

91.7 

465 

1,000 

636 

317 

126

268

July

1,040 

970 

868 

935 

1,000

935 

868 

710 

655 

628

538 

505 

514 

572 

572

519 

492 

492 

620 

540

500 

570 

650 

750 

700

650 

550 

460 

360 

290 

260

Per 

square 

mile

1.55 

2.78 

2.23

3.55

.994 

.711 

.680 

1.43 

7.27 

15.6 

9.94 

4.95 

1.97

4.19

Aug.

320

360 

310 

290 

275

280 

280 

290 

280 

280

285 

290 

28O 

270 

640

570 

440 

350 

330 

350

360 

340 

350 

310 

290

260 

260 

250 

230 

220 

200

Sept.

2O5 

210 

240 

280 

210

153 

139 

128 

120 

118

115 

113 

113 

110 

108

108 

106 

98 

92 

90

88 

90 

88 

96 

123

120 

96 

83 

75 

68

Runoff

Inches

1.78 

3.11 

?.58

48.18

1.15 

.74 

.78 

1.60 

£.38 

17.44 

13.46 

£.72 

2.20

56.94

* Winter discharge measurement made on this day.

Acre-feet

6,090 

10,620 

8,810

164,400

3,910 

2,530 

2,670 

5,450 

28,600 

59,520 

39,100 

19,520 

7,500

194,300

238382 O - 53 - 21
312 WENATCHEE RIVER BASIN

tfenatchee Lake near Plain, Wash.

Location.--Water-stage recorder, lat. 47°49'50", long. 120°46'30", in sec. 19, T. 27 N., 

H. iv E., on north shore, 2f miles upstream from outlet, 7j miles northwest of Plain, 

and 33 miles upstream from Leavenworth. Datum of gage is 1,860,00 feet above mean sea 

level, subject to correction to datum of 1929; gage readings have been reduced to elevations above mean sea level.

Drainage area.--£77 square miles.

Records available.--January 1932 to September 1950.

Extremes. Maximum elevation during year, 1,878.32 feet Nov. 27; minimum, 1,869.80 feet

1932-50: Maximum elevation recorded, 1,879.65 feet May 29, 1948; minimum elevation, 

1,869.27 feet Dec. 1, 1936.

rtemarks.--No diversion or regulation.

Elevation, In feet, water year October 1949 to September 195C

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

69.84

69.83

69.81

69.84

70.01

70.03

70.01

69.96

69.98

70.24

70.31

70.51

70.48

70.35

70.31

70.33

70.28

70.21

70.14

70.09

70.05

70.02

70.01

70.00

70.00

70.00

70.01

71.40

71.64

71.32

71.04

Nov.

70.83

70.70

70.60

70.51

70.43

70.36

70.32

70.26

70.24

70.22

70.25

70.35

70.73

71.26

71.46

71.30

71.12

70.97

70.91

70.83

70.74

70.69

70.83

71.42

72.38

72.88

76.43

77.41

75.32

73.84

-

Dec.

72.98

72.96

72.70

72.29

71.98

71.76

71.53

71.35

71. 2'

71.13

70.99

70.89

70.83

70.77

70.72

70.68

70.64

70.60

70.53

70.46

70.43

70.41

70.45

70.46

70.43

70.42

70.55

70.82

71.06

71.03

70.95

Jan.

70.84

70.73

70.62

70.56

70.48

70.47

70.42

70.40

70.39

70.37

70.32

70.31

70.27

70.19

70.13

70.11

70.11

70.10

70.14

70.19-

70.16

70.32

70.51

70.49

70.41

70.36

70.32

70.28

70.25

70.22

70.18

Feb.

70.16

70.13

70.12

70.13

70.12

70.12

70.11

70.12

70.10

70.07

70.07

70.06

70.07

70.05

70.04

70.04

70.04

70.03

70.00

69.98

69.95

69.94

69. 9S

70.09

70.14

70.14

70.16

70.14

_

-

Mar.

70.12

70.10

70.15

70.63

71.13

71.13

71.00

70.89

70.81

70.73

70.65

70.59

70.53

70.48

70.43

70.42

70.49

70.56

70.64

70.59

70.54

70.52

70.47

70.44

70.41

70.37

70.37

70.38

70.33

70.32

70.31

Apr.

70.39

70.45

70.46

70.45

70.44

70.44

70.44

70.43

70.40

70.38

70.36

70.39

70.46

70.53

70.60

70.74

70.95

71.02

71.02

71.05

71.13

71.18

71.15

71.07

71.01

70.93

70.90

70.85

70.82

70.83

-

May

70.89

70.92

70.96

70.98

70.98

70.97

70.97

71.01

71.12

71.33

71.72

72.39

73.34

73.97

74.16

74.07

73.83

73.45

72.99

72.67

72.58

72.90

72.98

72.88

72.86

73.01

73.44

73.67

73.50

73.31

73.19

June

73.29

73.67

73.97

74.35

74.79

74.57

73.95

73.48

73.21

73.22

73.67

74.49

75.27

75.75

75.80

75.74

76.09

76.41

76.51

76.70

76.98

76.57

75.74

74.85

74.04

73.70

73.75

74.14

74.80

75.59

-

July

75.88

75.71

75.35

75.16

75.23

75.25

75.09

74.70

74.14

73.81

73.38

73.09

73.07

73.22

73.27

73.09

72.99

72.98

73.17

73.11

72.91

72.89

72.95

72.98

72.99

72.88

72.66

7?. 35

72.07

71.79

71.69

Aug.

71.66

71.69

71.61

71.43

71.28

71.17

71.13

71.08

71.04

71.03

71.02

71.03

70.99

70.89

71.14

71.74

71.54

71.28

71.10

71.01

70.94

70.90

70.88

70.84

70.79

70.71

70.62

70.58

70.51

70.49

70.41

Sept.

70.36

70.35

70.34

70.34

70.32

70.26

70.20

70.16

70.12

70.10

70.08

70.06

70.04

70.03

70.01

70.01

69.99

69.96

69.92

69.90

69.89

69.89

69.88

69.86

69.91

70.12

70.19

70.12

70.05

69.98

-

Note. Add 1,800 feet to obtain elevation above mean sea level.
WENATCHEE RIVER BASIN 313

Wenatchee River below Wenatchee Lake, Wash.

Location.--Water-stage recorder, lat. 47°49'50", long. 120°46'30", In sec. 19, T. 27 N., 

K. 17 E., on north shore of Wenatchee Lake, 2-J miles upstream from outlet, ?|- miles 

northwest of Plain, and 33 miles upstream from Leavenworth. Datum of gase is 1,860.00 

feet above mean sea level, subject to correction to datum of 1929; gage readings have 

been reduced to elevation above mean sea level. Discharge measurements made just below 

highway bridge half a mile downstream from lake outlet.

Drainage area.--277 square miles.

Records available.--January 1932 to September 1942, October 1946 to September 1950.

Average discharge.--14 years, 1,300 second-feet.

Extremes.--Maximum discharge during year, 11,000 second-feet Nov. 27 (elevation of lake 

surface, 1,878.32 feet); minimum, 299 second-feet Oct. 3, 4 elevation of lake surface, 

1,869.80 feet).

1932-42, 1946-50: Maximum discharge recorded, 13,700 second-feet May 29, 1948 

(elevation of lake surface, 1,879.65 feet); minimum discharge, 134 second-feet Dec. 1, 

1936 (elevation of lake surface, 1,869.27 feet).

Remarks. Records good. Natural regulation at lake. No diversion.

Rating table, water year 1949-5O (elevation, in feet, 

and discharge, In second-feet)

1,869.8 299

1,870.0 407

1,870.2 538

1,870.6 856

1,871.0 1,240

1,871.5

1,872.0

1,872.5

1,873.0

1,874.0

1,760

2,310

2,870

3,470

4,690

1,875.0 5,990

1,876.0 7,290

1,877.4 9,350

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

319

314

304

319

413

426

413

384

396

567

618

778

753

648

618

633

596

545

497

464

438

420

413

407

407

407

413

1,140

1,920

1,540

1,280

Nov.

1,070

947

856

778

712

656

625

581

567

552

574

648

976

1,490

1,700

1,540

1,340

1,210

1,150

1,070

985

938

1,070

1,650

2,750

3,350

8,120

9,350

6,380

4,430

Dec.

3,470

3,470

3,110

2,640

2,310

2,040

1,820

1,600

1,490

1,390

1,230

1,130

1,070

1,010

966

929

892

856

795

736

712

695

728

736

712

703

812

1,060

1,300

1,270

1,190

Jan.

1,080

976

874

821

*753

744

703

687

679

664

625

618

588

531

490

477

477

470

497

531

511

625

778

761

695

656

625

596

574

552

524

Month

October .......................

November ............ ......

December ......................

Calendar year 1949 . . ......

January ........... ...........

February . ...... . . . ........

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

April . . ....... ..... ...

May ..... .............. .....

June ..........................

July .... ... . . ........... .

August .......... ..........

September .....................

Water year 1949-50 ..........

Feb.

511

490

484

b475

b465

b455

b450

b440

b440

b430

b425

b420

b415

b410

b405

b400

b395

*b390

b380

b380

b375

373

396

464

497

497

511

497

_

_

-

Secondfoot-days

18,790

58,065

42,872

569,928

20,182

12,270

25,175

29,119

90,310

174,180

129 310

40^383

13,926

654,582

Mar

484

470

504

883

1,390

1,390

1,240

1,130

1,050

976

902

847

795

753

712

703

761

821

892

847

804

786

744

720

695

664

664

672

633

625

618

Maximum

1,920

9,350

3,470

9,350

1,080

511

1,390

1,440

4 95C

8, 72C

7,160

2,040

656

9,350

Apr.

679

728

736

728

720

720

720

*712

687

672

656

679

736

795

856

985

1,190

1,260

1,260

1,290

1,390

1,440

1,390

1,310

1,250

1,170

1,140

1,090

1,060

1,070

-

May

1,130

1,160

1,200

1,220

1,220

1,210

1,210

1,250

1,340

1,600

1,980

2,750

3,830

4,690

4,950

4,820

4,430

3,950

3,470

3,050

2,990

3,350

3,470

3,350

3,350

3,470

3,950

4,310

4,070

3,830

3,710

Minimum

304

552

695

200

470

373

470

656

1,130

3,710

1,980

695

330

304

June

3,830

4,310

4,690

5,210

5,730

5,470

4,690

4,070

3,710

3,710

4,310

5,340

6,380

7,030

7,030

6,900

7,430

7,850

7,990

8,270

8,720

8,130

6,900

5,730

4,690

4,310

4,430

4,820

5,730

6,770

-

Mean

606

1,936

1,383

1,561

651

438

812

971

2 913

s',806

4,171

1,303

464

1,793

July

7,160

6,900

6,510

6,250

6,250

6,250

6,120

5,600

4,820

4,430

3,950

3,590

3,590

3,710

3,830

3,590

3,470

3,470

3,710

3,590

3,350

3,350

3,350

3,470

3,470

3,350

3,050

2,700

2,360

2,090

1,980

Per 

square 

mile

2.19

6.99

4.99

5.64

2.35

1.58

2.93

3.51

10.5

21.0

15.1

4.70

1.68

6.47

Aug.

1,920

1,3

1,6

1,7

80

70

00

1,540

1,390

1,3

1,3

1,2

90

20

80

1,270

1,260

1,2

1,2

1,3

70

30

30

1,390

2,040

l,£ 1|£

i,:

20

40

40

1,250

1,180

1,3

1,3

1,C

40

20

80

1,030

956

£

£'

'

74

39

78

61

695

Sept

656

648

641

641

625

581

538

511

484

470

457

445

432

426

413

413

401

384

361

350

345

345

340

330

356

484

531

484

438

396

-

Runoff

Inches

£.52

7.80

E.76

76.51

2.71

1.65

3.38

3.91

12.13

23.39

17.36

5.42

1.87

87.90

Acre-feet

37,270

1.15,200

85,040

1,131,000

40,030

24,340

49,930

57,760

179,100

345,500

256,500

80,100

27,620

1,298,000

Peak discharge (base, 5.500 sec.-ft.).--Nov. 27 (7 p.m.) 11,000 sec.-ft.; June 5 (4 p.m.) 5,860 

sec.-ft.; June 21 (2 a.m.) 8,720 sec.-ft.; July 1 (12 m.) 7.16O sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
314 WENATCHEE RIVER BASIN

Wenatctiee River at Plain, Wash.

Location.--Water-stage recorder, lat. 47°45'50", long. 120°39'30", in lot 8, sec. 12, T.

26 H., R. 17 E., at Plain, a quarter of a mile downstream from Beaver Creek, 7j miles

downstream from Nason Creek, and 12 miles north of Leavenworth. Datum of gage is 1,805

feet above mean sea level (from river-profile map). 

Drainage area.--591 square miles. 

Records available.--November 1910 to September 1950 in reports of Geological Survey. Aagust 1904 to September 1933 (monthly discharge) in State Water-Supply Bulletin 5. 

Average discharge.--46 years (1904-50), 2,168 second-feet. 

Extremes.--Maximum discharge during year, 16,300 second-feet Nov. 27 (gage height, 10.54

feet); minimum, 475 second-feet Oct. 3 (gage height, 2.00 feet).

1910-29, 1931-50: Maximum discharge, 22,700 second-feet May 29, 1948 (gage height,

12.43 feet, from high-water mark in well); minimum, 191 second-feet Dec. 1, 1936 (gage

height, 1.34 feet). 

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

Wenatchee Park Land & Irrigation Co. diverts a maximum of about 12 second-feet from

Chiwawa River during irrigation seasons. Natural regulation by Wenatchee Lake. 

Revisions (water years). W482: 1911-14.

Rating table, water year 1949-50, except periods of Ice effect 

(gage height, in feet, and discharge, in second-feet)

2.0 475 3.0 1,230 4.5 2,870 7.0 7,200 

2.2 600 3.3 1,510 5.O 3.58O 8.O 9,420 

2.4 740 3.6 1,810 5.5 4,380 9.O 12,000 

2.7 970 4.0 2,250 6.0 5,250 10.1 15,100

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

535 

a510 

a490 

a520 

712

698 

684 

649 

677 

1,030

1,020 

1,280 

1,180 

1,050 

1,030

1,060 

986 

906 

830 

792

748 

712 

698 

677 

670

663 

677 

1,880 

2,800 

1,980 

1,810

Nov.

1,560 

1,410 

1,280 

1,180 

1,100

1,030 

978 

930 

914 

898

922 

1,120 

1,610 

2,310 

2,490

2,140 

1,920 

1,710 

1,660 

1,560

1,460 

1,410 

1,660 

2,520 

3,970

4,720 

12,000 

13,600 

9,420 

6,590

Dec.

5,250 

5,250 

4,550 

3,970 

3,430

3,070 

2,680 

2,430 

2,310 

2,080

1,860 

1,810 

1,710 

1,610 

1,560

1,510 

1,460 

1,410 

1,280 

1,230

1,180 

1,230 

1,230 

1,230 

1,180

1,180 

1,320 

1,860 

2,030 

1,920 

1,810

Jan.

1,660 

1,510 

1,280 

1,230 

*1,180

1,180 

1,120 

1,120 

1,100 

1,060

1,020 

1,960 

900 

840 

820

820 

810 

830 

880 

940

880 

1,180 

1,320 

1,230 

1,120

1,080 

1,040 

980 

950 

910 

830

Month fool

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

mber ................... . .

Feb.

840 

830 

810 

800 

780

770 

760 

750 

740 

730

720 

710 

700 

700 

690

680 

680 

680 

680 

*680

680 

691 

733 

830 

906

906 

922 

890

ond-

-days

29,954 

86,072 

66,630

lendar year 1949 ......... 964,383

 uary .

st . . . . ..... .............

ember ............ .......

33,780 

21,288 

41,069 

53,370 

167,790 

509,910

jie.ooo

64,190 

23,937

ter year 1949-50 .......... 1,113,990

Mar.

860 

845 

914 

1,760 

2,200

2,030 

1,860 

1,710 

1,610 

1,510

1,410 

1,320 

1,280 

1,230 

1,180

1,180 

1,280 

1,410

1,460 

1,360

1,320 

1,280 

1,230 

1,180 

1,140

1,110 

1,100 

1,110 

1,070 

1,060 

1,060

Maximum

2,800 

13,600 

5,250

15,700

1,960 

922 

2,200 

2,550 

8,720 

15,100 

12.20C 

3,140 

1,120

15,100

Apr.

1,230 

1,320 

1,280 

1,280 

1,280

1,280 

1,280 

1,280 

1,230 

1,230

1,230 

1,320 

1,460 

1,560 

1,660

1,920 

2,200 

2,250 

2,250 

2,370

2,550 

2,550 

2,490 

2,310 

2,250

2,140 

2,080 

2,030 

1,980 

2,080

May

2,200 

2,250 

2,310 

2,310 

2,310

2,250 

2,310 

2,310 

2,720 

3,140

3,890 

5,430 

7,410 

8,490 

8,720

8,490 

8,050 

7,200 

6,190 

5,620

5,810 

6,590 

6,390 

6,190 

6,190

6,590 

7,410 

7,830 

7,410 

6,990 

6,790

Minimum

490 

898 

1,180

350

810 

680 

845 

1,230 

2,200 

6,790 

3,070 

1,180 

580

490

June

7,200 

7,830 

8,490 

9,180 

10 , 400

9,660 

8,270 

7,410 

6,790 

6,790

7,830 

9,420 

11,400 

12,500 

12,800

12,500 

12,100 

13,600 

13,900 

14,500

15,100 

14,500 

12,200 

9,900 

8,270

7,620 

7,830 

8,720 

10,200 

12,000

Mean

966 

2,869 

2,149

2,642

1,090 

760 

1,325 

1,779 

5,413 

10,330 

6,968 

2,071 

798

3,052

July

12,200 

12,000 

10,900 

10,400 

10,600

10,600 

10,400 

9,420 

8,050 

7,620

6,^90 

6, COO 

6, COO 

6,390 

6,390

6,000 

5,810 

5,810 

6,390 

6,000

5,620 

5,430 

5,620 

5,620 

5,620

5,250 

4,890 

4,300 

3,730 

3,280 

3,070

Per 

square 

mile

1.63 

4.85 

3.64

4.47

1.84 

1.29 

2.24 

3.01 

9.16 

17.5 

11.3 

3.50 

1.35

5.16

Aug.

3,000 

3,140 

3,000 

2,680 

2,430

2,250 

2,200 

2,140 

2,080 

2,030

2,030 

2,030 

1,980 

1,860 

2,200

3,140 

2,680 

2,310 

2,080 

1,920

1,860 

1,810 

1,810 

1,760 

1,660

1,510 

1,460 

1,360 

1,320 

1,280 

1,180

Sept.

1,120 

1,090 

1,100 

1,110 

1,050

986 

914 

882 

822 

800

778 

762 

740 

733 

719

705 

691 

663 

649 

607

600 

594 

587 

580 

635

845 

906 

830 

755 

684

Runoff

Inches

1.88 

5.42

4.19

60.67

2.13 

1.34 

2.58 

3.36 

10.56 

19.50 

13.59 

4.04 

1.51

70.10

Acre-feet

59,410 

170,700 

132,200

1,913,000

67,000 

42,220 

81,460 

105,900 

332,800 

614,700 

428,400 

127,300 

47,480

2,210,000

Peak discharge (base, 4,350 sec.-ft.).--Hov. 27 (10:15 p.m.) 16,3oO sec.-ft.; Fay 15 (8 a.m.j 

3,950 sec.-ft.j June 5 (4 p.m.) 10,400 see.-ft.j June 21 (3:30 p.m.) 15,400 sec.-ft.; July 1 (2 p.m.) 

12,500 sec.-ft.

* Winter discharge measurement made on this day.

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

nearby stations.

Note. Stage-discharge relation affected by ice Jan. 1O-21, Jan. 26 to Feb. 21.
WENATCHEE RIVER BASIN 315

Wenatchee River at Peshastin, Wash.

Location.--Water-stage recorder, lat. 47°34'50", long. 120°37'00", in SE£SW£ sec. 8, T. 24

N.,"H. 18 E., 1 mile northwest of Peshastin and 3| miles upstream from Peshastin Creek.

Datum of gage is 1,028.04 feet above mean sea level, datum of 1929. 

Drainage area. 1,000 square miles. 

Keeords available.--October 1928 to September 1950 (monthly discharge only, October 1928

to February aaa9).

Average discharge.--22 years, 2,850 second-feet. 

Extremes. Maximum discharge during year, 21,800 second-feet June 21 (gage height, 12.67

reet); minimum, 513 second-feet Sept. 22 (gage height, 1.96 feet); miniirum daily, 741

second-feet Oct. 4.

1929-50: Maximum discharge, 32,300 second-feet May 28, 1948 (gage height, 15.88

feet); minimum, 183 second-feet Oct. 14, 1939 (gage height, 1.26 feet); minimum daily,

270 second-feet Oct. 2, 1929, Nov. 30, 1936. 

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

which are fair. Several diversions above station for irrigation. Some regulation at

millpond at Leavenworth and by power plant in Tumwater Canyon.

Rating table, water year 1949-50, except periods of loe effect 

(gage height, In feet, and discharge, In second-feet)

2,3 720 4.5 2,960 9.0 11,700 

2.6 950 5.O 3,66O 10.0 14,200 

3.0 1.29O 6.0 5,250 11. O 16,9OO 

3.5 1,770 7,0 7,160 12.0 19,700 

4.0 2,330 8.0 3,330

Discharge, In second-feet, water year October 1949 to September 195")

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

Oct.

790 

769 

748 

741 

1,010

1,070 

1,030 

982 

1,010 

1,670

1,520 

1,880 

1,720 

1,520 

1,470

1,570 

1,470 

1,340 

1,200 

1,160

1,110 

1,070 

1,020 

974 

l.OOO

982 

966 

2,870 

4,420 

3,310 

2,700

Nov.

2,330 

2,040 

1,880 

1,770 

1,620

1,520 

1,470 

1,380 

1,380 

1,290

1,340 

1,570 

2,100 

3,170 

3,520

*3,100 

2,700 

2,450 

2,330 

2,210

2,100 

1,990 

2,330 

3,450 

5,250

6,56O 

17,300 

18,300 

12,700 

8,880

Dec.

6,960 

7,160 

6,360 

5,430 

4,740

4,260 

3,810 

3,380 

3,170 

2,960

2,640 

2,700 

2,450 

2,270 

2,160

2,100 

2,040 

1,990 

1,820 

1,670

1,720 

1,670 

1,720 

1,720 

1,620

1,620 

1,720 

2,330 

2,700 

2,570 

2,450

Jan.

2,210 

2,040 

1,900 

*1,880 

1,750

1,700 

1,650 

1,6OO 

1,550 

1,500

1,450 

1,400 

1,300 

1,200 

1,150

1,150 

1,150 

1,100 

1,150 

1,250

1,250 

1,350 

1,700 

1,800 

1.600

1,550 

1,500 

1,450 

1,400 

1,350 

1,300

Feb.

,300 

.250 

,250 

,200 

,200

,150 

,150 

,150 

,100 

,100

,100 

,100 

,05O 

,050 

,050

,050 

,050 

,000 

1,000 

980

*970 

966 

990 

1,110 

1,290

1,290 

1,290 

1,200

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194E .......................

ter year 1949-50 .......................

Mar.

1,160 

1,160 

1,200 

2,100 

2,960

2,760 

2,510 

2,330 

2,160 

2,040

1,940 

1,820 

1,770 

1,670 

1,620

1,62O 

1,770 

1,990 

2,040 

1,990

1,880 

1,820 

1,770 

1,720 

1,670

1,670 

1,620 

1,620 

1,570 

1,570 

1,620

Apr.

1,

1, 

1,

1, 

1,

1,

1, 

1, 

1, 

1,

1, 

1, 

2, 

2,

2,

2, 

3, 

3, 

3,

3,

3, 

3, 

3, 

3, 

3,

2,

2, 

2, 

2,

2,

Secondfoot-days

45,O92 

120,030 

91,910

1,374,451

46,330 

31,386 

57,140 

76,170 

230,9OO 

439,420 

294,230 

83,300 

30,505

1,546,413

Peak discharge (base, 10,8OO sec. -ft.). Nov. 28 (2 a.

770 

990 

940 

880 

880

940 

940 

880 

880 

770

880 

990 

210 

330 

390

700 

100 

170 

170 

310

660 

590 

450 

240

100

960 

830 

760

700 

760

May

2,900 

3,030 

3,240 

3,100 

3,100

3,030 

3,030 

3,100 

3,450 

3,960

5,250 

7,370 

10 , 20O 

11,700 

11,900

11,400 

11,000 

9,790 

8,440 

7,580

8,000 

9,330 

9,100 

8,660 

8,660

9,330 

10,700 

11,000 

10,200 

9 , 790 

9,560

Maximum

4,420 

18,300 

7,160

22,100

2,210 

1,300 

2,960 

3,660 

11 , 900 

21,500 

17,200 

4,260 

1,380

21,500

June

1O,000 

11,200 

11,900 

13,200 

14,800

13 , 700 

11,700 

10,200 

9,560 

9,560

11,OOO 

13,400 

15,800 

17,500 

18,OOO

18,000 

19,200 

19,700 

20,000 

20,900

21,500 

20,000 

17,200 

14,000 

11,400

10,70O 

11,200 

12,400 

14,800 

16,900

July

17,200 

16,400 

15,000 

14,800 

15,000

14,800 

14,200 

12,700 

11,200 

10,500

9,10O 

8,220 

8,220 

8,660 

8,660

8,000 

7,580 

7,580 

8,440 

8,OOO

7,370 

7,370 

7,370 

7,370 

7,370

7,160 

6,560 

5,790 

5,080 

4,420 

4,110

Aug.

3,960 

4,110 

3,960 

3,520 

3,170

2,960 

2,900 

2,760 

2,700 

2,640

2,570 

2,570 

2,510 

2,390 

2,570

4,260 

3,660 

3,100 

2,7OO 

2,510

2,450 

2,330 

2,330 

2,270 

2,100

1,990 

1,880 

1,770 

1,620 

1,570 

1,470

Minimum Mr an

741 1,455 

1,290 4,O01 

1,620 2,965

530 3,766

1,100 1,495 

966 1,121 

1,160 1,843 

1,770 2,539 

2,900 7,448 

9,560 14.65O 

4,110 9,491 

1,470 2,687 

755 1,017

741 4,237

Sept.

,380 

,380 

,340 

,380 

,340

,240 

,160 

,070 

,O20 

974

942 

950 

966 

942 

918

918 

886 

870 

838 

822

790 

769 

769 

755

790

1,010 

1,200 

1,110 

1,010 

966

Runoff In 

acre-feet

89,440 

238,100 

182,300

2,726,000

91,890 

62,250 

113,300 

151,100 

458,000 

871,600 

583,600 

165,200 

60,510

3,067,000

m.) 20,900 sec. -ft.; May 15 (8:30 a.m.)

11,900 sec.-ftTj June 5 (12 m.) 14,800 sec.-ft.; June 21 (4 a.m.) 21.8OO sec.-ft. ; July 1 (2 a.m.) 

17,500 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Jan. 3 to Feb. 21 (no gage-height record Jan. 3, 

13-23, 28-31; discharge computed on basis of weather records and records for nearby stations).
316 WENATCHEE RIVER BASIN 

Icicle Creek above Snow Creek, near Leavenworth, Wash.

Location.--Water-stage recorder, lat. 47"32 | S5", long. 120°42'55", in SE£ sec. 28, T. 24 

N., H. 17 E., three-eighths of a mile upstream from Snow Creek and 4| miles southwest 

of Leavenworth.

Drainage area.--193 square miles.

Records available.--September 1936 to September 1950.

Average discharge.--14 years, 578 second-feet.

Extremes.--Maximum discharge during year, 8,020 second-feet Nov. 27 (gage height, 12.25 

feet); minimum, 125 second-feet Sept. 23, 24 (gage height, 2.58 feet).

1936-50: Maximum discharge, 17,500 second-feet May 28, 1948 (gage height, 13.93 

feet); minimum, 50 second-feet Oct. 25, 26, 1942 (gage height, 1.92 feet).

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

which are poor. No diversion. Some regulation in headwater lakes for irrigation.

Revisions (water years).--W 862: 1936-37.

Rating table, water year 1949-50, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

2.5 115 4.5 511 7.0 1,64O 

2.7 140 5.0 666 8.0 2,310 

3.0 184 5.5 847 9.0 3,190 

3.5 270 6.0 1,080 10.0 4,310 

4.0 376 6.5 1,350 11.0 5,690

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

146 

140 

136 

162 

242

233 

216 

194 

332 

482

414 

468 

364 

320 

352

352 

309 

289 

260

251

233 

233 

224 

224 

233

233 

242 

1,540 

1,000 

700 

570

Nov.

511 

454 

414 

333 

352

330 

509 

309 

309 

289

309

414 

617 

847 

735

617 

555 

511 

511 

468

440 

427 

617 

1,020 

1,300

1 , 640 

5,560 

2,550 

1,760 

1,350

Dec.

1,210 

1,400 

1,100 

931

847

771 

700 

650 

633 

570

482 

540 

482 

454 

440

427 

401 

388 

352 

341

352 

330 

330 

330 

320

320 

352 

496

496 

414 

376

Jan.

341 

320 

270 

*Z70 

250

230 

230 

230 

230 

260

260 

251

233 

192 

180

170 

170 

170 

170 

242

330 

454 

300 

200 

170

150 

150 

150 

150 

150 

150

Feb.

150 

150 

150 

150 

150

150 

150 

150 

150 

150

150 

150 

150 

155 

155

155 

155 

160 

160 

*160

160 

160 

174 

208 

208

200 

200 

189

u«»4.k SecondMonth foot-days

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 ..... 

arv

11,094 

25,913 

17,235

234,827

st . . . . . ......... ....

ember . 

7,023 

4,549 

8,997 

12,187 

45,690 

92,890 

56,984 

14,841 

5,163

ter year 1949-50 .... .... 302,566

Mar.

182 

180 

242 

570 

496

414 

376 

341 

320 

299

239 

270 

270 

260 

251

260 

£99 

309 

299 

280

270 

a260 

a260 

a260 

a2EO

a250

a250

a240 

a240 

a250

Maximum

1,540 

5,560 

1,400

5,560

454 

208 

570 

633 

2,470 

4,700 

3,500 

828 

242

5,560

Apr.

a270 

a280 

a290 

a280 

a270

a260 

a260 

a270 

a280 

270

270

320 

376 

376 

338

440 

526 

511 

511 

570

633 

617 

570 

540 

511

482 

468 

454 

440 

454

May

468 

482 

482 

482 

468

454 

454 

496 

586

718

1,050 

1,700 

2,310 

2,310 

2,230

2,160 

2,090 

1,760 

1,520 

1,400

1,640 

2,160 

1,880 

1,700

1,760

2,090 

2,470 

2,310 

£,160 

1,950 

1,950

Minimum

136 

289 

320

123

150 

150 

180 

260 

454 

1,950 

683 

251 

125

125

Peak discharge (base, 2,500 sec.-ft.J. Nov. 27 (6 to 3 a.m.)

June

2,230 

2,470 

2,550 

2,990 

3,290

2,810 

2,390 

2,160 

1,950 

2,090

2,470 

3,090 

3,500 

3,610 

3,500

3,830 

4,440 

4,310 

4,310 

4,700

4,700 

3,500 

2,810 

2,310 

2,160

2,160 

2,310 

2,810 

3,610 

3,830

Mean

358 

864 

556

780

227 

162 

290 

406 

1,474 

3,096 

1,838 

479 

172

829

July

3 , 500 

3,190 

2,900 

2,990 

3,190

2,900 

2,720 

2,390 

2,230 

2,090

1,760 

1,640 

1,700 

1,820 

1,760

1,580 

1,460 

1,460 

1,760 

1,580

1,400 

1,380 

1,400 

1,380 

1,380

1,160 

1,050 

931 

847 

753 

683

Per 

square 

mile

1.85 

4.48 

2.88

4.04

1.18 

.839 

1.50 

2.10 

7.64 

16.0 

9.52 

2.48 

.891

4.30

Aug.

700

771 

683 

617 

570

540 

511 

511 

482 

468

454 

440

427 

414 

540

828 

617 

526 

482 

454

427 

401 

427 

414

376

341 

320 

299 

280

270

251

Sept.

242 

242 

242 

242 

233

208 

200 

190 

184 

181

180 

178

175 

168 

163

158 

151 

144 

140 

136

131 

128 

126 

125 

131

184

166 

148 

136 

131

Runoff

Inches

2,14 

4-99 

3,32

54.88

1.35 

.88 

1.73 

2.35 

8.80 

17,90 

10.98 

2.86 

.99

58.29

8,020 sec. -ft.; Jure 5 (6

Acre- feet

22,000 

51,400 

34,190

564,900

13,930 

9,020 

17,850 

24,170 

90,620 

184,200 

113,000 

29,440 

10,240

600,100

to 9 a.m.)

,jsu sec.-it.i June zi \,L to i; a.m.; b,lLO sec.-ft.; June 30 (2 a.m.) 4,190 sec.-ft. 

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for nearby streairs. 

Note. Stage-discharge relation affected by ice Jan. 5-9, 15-19, Jan. 23 to Feb. 22.
MOSES COULEE BASIN

Douglas Creek near Alstown, Wash.

Location.--Water-stage recorder, .lat. 47°35'00", long. 120°00'50", In s| sec. 1C, T. 24 

N., R. 22 E., l| miles northwest of Alstown and 2.9 miles south of Douglas.

Records available.--June 1949 to September 1950.

Extremes. Maximum discharge during year, 1,350 second-feet June 18 (gage height, 6.70 

feet, from high-water mark); minimum recorded, 0.1 second-foot Oct. 19, but may have 

been less during period of no gage-height record Jan. 21-24.

1949-50: Maximum discharge, that of June 18, 1950; minimum recorded, that of Oct. 

19, 1949.

Flood of June 10, 1948, reached a stage of 13.05 feet, from floodmarks (discharge, 

6,420 second-feet), by slope-area method.

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

No regulation.

Rating table, water year 1.949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 1 to Dec. 10, Aug. 19 to Sept. l)

1.9

2.0

2.1

2.2

0.3

1.7 

5.1

2.3 

2.5 

2.7 

3.0

23

50

81

137

3.3 200

3.7 298

4.0 378

4.6 552

Discharge, In second-feet, water year October 1949 to September 1950

Day

1

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.2 

.4

.3 

.3

.3

.3

.3 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4

.4 

.4 

.4 

.4 

.4

Nov.

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.6 

.6

.6

.6 

.6

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.7 

.6

.6 

1.0 

.7 

.7 

.8

Dec.

0.7 

.7 

.6 

.7 

.7

.7 

.7 

.6 

.7 

.6

.6 

.6 

.6

.6

.6

.6 

.6 

.6 

.4

.4

.4 

.4 

.4 

.4

.4 

.6 

.6 

.6 

.6 

.6

Jan.

o

rf* ***rf*rfO3CT> -rt OJ********** 

.3

.3 

.3

.3 

.3 

.3

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.3 

.3

Feb.

0.4 

.4

.4 

.4 

.4

.4 

.4 

.8 

1.2 

1.5

1.7 

1.5 

.4

.2 

.2

i2

.3

.4 

.4 

.6 

.7 

1.0

1.2 

1.3 

1.5

Month

Goto 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year

ter year 1949-50 .......................

Mar.

1.9 

16' 2.1 

158 

150

145 

130 

110 

50 

18

10 

7.0 

5.7

5.7

37 

540 

240 

90 

54

32 

66 

90 

36 

54

31 

38 

65 

40 

129 

253

Apr.

400 

180 

110 

80

65

52 

42 

30 

23 

19

17 

17 

15

8.3

9.9 

9.1 

7.6 

6.2 

6.9

6.2 

5.7 

4.6 

3.7 

3.7

4.1 

4.1

3.7 

3.7 

3.7

Secondfoot -days

10.2

17.3 

17.9

-

10.0 

18.5 

2,608.5 

1,150.3 

85.1 

619.0 

30.9 

24.4 

19.6

4,611.7

May

6.2 

9.1 

6.2 

4.6 

4.1

3.3 

3.7 

3.3 

2.7 

3.0

2.4 

2.4 

2.1

2.1

2.1 

1.9 

1.9 

1.9 

1.9

1.9 

1.7 

1.-7 

1.7

1.7

1.7 

1.7 

1.5 

1.5 

1.5 

1.5

Maximum

0.4 

1.0 

.7

-

.6 

1.7 

540 

400 

9.1 

540 

1.7 

.8 

.7

540

June

1.7 

1.7 

1.5 

3.0 

1.5

1.5 

1.7 

1.7 

1.7 

1.5

1.5 

1.5 

1.5

2.1

4.0

15 

540 

10. 

3.3

2.7 

2.4 

2.4 

2.4 

2.1

1.9 

1.9

1.7 

1.7 

1.7

July

1.7 

1.7 

.5 

.5 

.5

.5 

.5 

.5 

.3 

.2

1.0 

1.0 

.8

.8

.8 

.8

.8 

.8 

.7

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7 

.7

Minimum

0.2 

.4 

.4

-

.2 

.2

1.9 

3.7 

1.5 

1.5 

.7 

.7 

.6

.2

Aug.

0.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8

.8 

.8

.8

.8 

.7 

.7 

.7 

.7

Mean

0.33 

.58 

.58

-

.32 

.66 

84.1 

33.3 

2.75 

20.6 

1.00 

.79 

.65

12.6

Sept.

0.7

.6 

.6 

.6 

.6

.6 

.6

.6 

.6

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7

.7 

.7

.7 

.7

.6

.7

.7 

.6 

.6 

,6 

.6

Runoff In 

acre-feet

20 

34

36

-

20 

37 

5,170 

2,280 

169 

1,230 

61 

48 

39

9,140

Peak discharge (base. 400 sec.-ft.) . Mar. 4 ( time unknown) 406 seo.-ft.; Mar. 17 (time unknown) 

1,000 seo.-ft.; about Apr. 1 (time unknown) 583 sec.-ft.j June 18 (time unknown) 1,350 seo.-ft.

Note.--No gage-height record Jan. 14-24, Mar. 4-12, 17-29, Apr. 1-6, June 16-19, July 14 to Aug. 

18; discharge computed on basis of recorded range in stage and records for station near Palisades.
318 MOSES COULEE BASIN

Douglas Creek near Palisades, Wash.

Location.--Water-stage recorder, lat. 47°28'00", long. 119°52'30", In NW£ sec. 30, T. 23 

W., H. 24 E., 1.3 miles above mouth and 3.8 miles northeast of Palisades.

Records available. November 1949 to September 1950.

Extremes.--Maximum discharge during period, 1,960 second-feet June 18 (gfge height, 6.30 

reet, from high-water mark In well), by slope-area method; minimum. 5.6 second-feet 

Jan. 24, 25.

Remarks. Records fair except those for periods of no gage-height record, faulty intake 

action, and discharges above 20 second-feet, which are poor. Some diversion above station for irrigation. No regulation.

Discharge, in second-feet, water year October 1949to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct. Nov.

6.2

6 .2 

6.2 

6.2

6.2 

6.3 

6.3 

6.6 

6.3

6.3 

6.2 

6.2 

6.4 

6.2

6.2 

6.2 

6.2 

6.2 

6.2

6.3 

6.3

6.8 

6.9 

6.6

6.6 

7.3 

6.6 

6.4 

6.4

Dec.

6.4 

6.4 

6.3 

6.4 

6.6

6.4 

6.4 

6.4 

6.6 

6.4

6.4 

6.3 

6.3 

6.4 

6.6

6.6 

6.9 

6.8 

6.6 

6.8

6.8 

6.8 

6.8 

6.8 

6.6

6.4 

6.9 

6.9 

8.2 

6.8 

6.8

Jan.

6.8 

6.4 

6.4 

6.4 

6.4

6.4 

6.4 

6.6 

6.6 

6.8

6.6 

6.4 

7.3 

6.4 

6.4

6.3 

6.3 

6.3 

6.4 

6.6

6.4 

6.6 

6.6 

6.3 

6.2

6.3 

6.3 

6.3 

6.3 

6.3 

6,3

Feb.

6.3 

6.3 

6.3 

6.3 

6.4

6.6 

6.4 

6.6 

6.8 

6.9

6.4 

6.4 

6.4 

6.4 

6.6

7.7 

7.3 

8.2 

8.2 

8.6

8.0 

7.5 

7.3 

14 

110

556 

244

112

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAv

June 

July 

Augu 

Sept

Th

lendar year

ember. ..................................

e period. ...............................

Mar.

72 

84 

545 

675 

650

610 

570 

438 

162 

65

19 

9.3 

6.9

6.4 

11

182 

976 

653 

250 

157

105 

214 

277 

119 

170

103 

126 

202 

131 

279 

490

Apr.

653 

400 

214 

108 

82

40 

a33 

a30 

a29 

a28

28 

35 

34 

26 

25

25 

24 

22

20 

19

18.5 

18 

17 

16.5 

15.5

15 

14.5 

14.5 

14 

13.5

Secondfoot-days

191.2 

205.8

-

200.1 

1,195.9 

8,357.6 

2,032 

339.7 

621.9 

219.9 

212.5 

206.2

-

Peak discharge (base, 1,500 sec. -ft. ). --Mar. 3 (5 p.m.

Hay

14.5 

16 

15 

14.5 

13.5

13 

12 

12 

11.5 

11

10.5 

10.5 

10.5 

10.5 

10

10 

10 

10 

10 

9.9

9.9 

9.9 

9.8 

9.8 

9.6

9.6 

9.4 

9.4 

9.2 

9.2 

9.0

Maximum

7.3 

8.2

-

7.3 

556

976 

653 

16 

250 

7.5 

6.9 

7.1

-

) 1,880 sec.

June

9.0 

9.0 

9.0 

11 

10

9.5 

10.5 

10.5 

10 

9.6

9.2 

9.0 

9.0 

9.5

11.5

20 

90 

250 

22 

10.5

9.6 

8.6 

8.6 

8.6 

8.4

8.2

8.0 

7.7 

7.7 

7.7

July

7.5 

7.3 

7.5 

7.5

7.5

7.5 

7.5 

7.3 

7.1 

7.1

7.1 

7.1 

7.1 

7.1 

7.1

7.1 

6.9 

6.9 

6.9 

6.9

6.9 

6.9 

6.9 

6.9 

6.9

6.9 

6.9 

6.9 

6.9 

6.9 

6.9

Minimum

6.2 

6.3

-

6.2

6.3 

6.4 

13.5 

9.0 

7.7 

6.9 

6.8 

6.8

-

-ft.; Mar.

Aug.

6.9 

6.9 

6.9 

6.9 

6.9

6.9 

6.9 

6.9 

6.9 

6.9

6.9 

6.9 

6.9 

6.9 

6.9

6.8 

6.8 

6.8 

6.8 

6.8

6.8 

6.9 

6.8 

6.8 

6.8

6.8 

6.8 

6.9 

6.8 

6.8 

6.8

Mean

6.37 

6.64

-

6.45 

42.7 

270 

67.7 

11.0 

20.7 

7.09 

6.85 

6.87

-

Sept.

6.8 

6.8 

6.8 

6.8 

6.8

6.9 

6.9 

6.9 

6.8 

6.9

6.9 

6.9

6.8 

6.8 

6.8

6.9 

6.9

6.8 

6.8 

6.8

6.9

6.9 

6.9 

6.9 

7.1

6.9 

6.9 

6.9 

6.9

7.1

Runoff In 

acre-feet

379 

408

-

397

2,370 

16,570 

4,030 

674 

1,230 

436 

421 

409

27,320

17 (6:30 p.m.) 1,880

... .. , .. . a No gage-height record; discharge computed on basis of weather records and records for station 

near Alstown.

Note. Faulty Intake action May 22 to June 19; discharge computed on basis of slope-area measurement, weather records, and records for station near Alstown. Shifting-control method used Nov. 1 to 

Feb. 25, Apr. 13 to May 21, June 20 to Sept. 30.
CRAB CREEK BASIN 319

Crab Creek at Irby, Wash.

Location.--Water-stage recorder, lat. 47°21'30", long. 118°51'00", in NW-fc sec. 31, T. 22 

w., H. 32 E., 8 feet upstream from county road bridge at Irby, 5 miles downstream from 

Lake Creek, and 7 miles west of Odessa.

Records available. September 1942 to September 1950.

Extremes. Maximum discharge during year, 3,640 second-feet Mar. 5 (gage height, 8.96 

reet), from rating curve extended above 1,200 second-feet; minimum, 10.5 second-feet 

Jan. 10 (gage height, 1.96 feet), but may have been less during period of ice effect.

1942-50: Maximum discharge, that of Mar. 5, 1950; minimum, 2.0 second-feet Jan. 12, 

1948 (gage height, 1.80 feet).

Remarks. Records good except those for periods of ice effect or shifting cortrol, which 

are poor. No regulation. Some diversion above station for irrigation.

Rating table, water year 1949-50, except periods of Ice effect or shifting control 

(gage height, in feeb, and discharge, in second-feet)

2.0 13 3.6 292 6.5 1,14O 

2.2 31 4.0 378 7.0 1,470 

2.4 55 4.5 464 7.5 1,890 

2.7 100 5.0 565 8.0 2,390 

3.0 155 5.5 705 9.0 3,640 

3.3 221 6.0 890

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

14 

14 

14 

14 

14

14 

14.5 

14 

14 

13

13 

13 

13 

13 

13

13 

13 

13 

14 

14

14 

14 

14.5 

14.5 

15.5

15.5 

15.5 

15.5 

15.5 

15.5 

15.5

Nov.

15.5 

15.5 

15.5 

15.5 

15.5

15.5 

15.5 

15.5 

15.5 

15.5

15.5 

14.5 

14.5 

14.5 

14.5

14.5 

14.5 

15.5 

15.5 

15.5

15.5

16 

16 

17 

16

18 

18.5

17 

17 

17

Dec.

17 

17 

18 

18

18

 17 

16 

15.5 

14.5 

14.5

14 

14 

14 

14 

14

14 

14 

14 

13 

b!3

13 

12 

12 

12 

11.5

11.5 

11.5 

11.5 

11.5 

11.5 

11.5

Jan.

11.5 

11.5 

bll 

bll 

bll

bll 

bll 

11 

11 

11

11 

11 

bll 

bll 

bll

bll 

bll 

bll 

b!2 

b!3

b!4 

b!4 

b!5 

b!5

b!6

b!6 

b!7 

b!7 

bl8 

bl8 

b!8

Feb.

bl8 

b!9 

*b!9 

b!9 

b!9

b!9 

b!9 

bl8 

bl8 

bl8

b!8 

b!7

b!6 

16 

17

31 

130 

572 

1,230 

1,400

1,170 

910 

615 

456 

775

2,340 

2,790 

2,130

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

1,670 

1,230 

1,060 

1,600 

3,360

3,100 

2,970 

2,030 

1,300 

955

705 

578 

*519 

481 

464

432 

448 

590 

930 

758

615 

530 

490 

456 

440

424 

397 

378 

378 

348 

337

Apr.

301 

301 

292 

278

266

251 

251 

239 

230 

223

216 

210 

200 

196 

189

185 

180 

178 

174 

163

149 

143 

141 

141 

131

128 

122 

107 

103 

97

Secondfoot-days

437 

472 

433

49,445.5

402 

14,819 

29,973 

5,785 

2,723 

2,104 

1,308 

921 

685

60,062

Peak discharge (base, 300 sec. -ft.). Feb. 19 (9 p.m.)

May

98 

107 

105 

107 

107

105 

107 

105 

100 

95

92 

92 

95 

97 

95

89 

80 

80 

80 

75

76 

81 

78 

76 

81

80 

72 

69

66 

68 

65

Maximum

15.5 

18.5 

18

3,230

18 

2,790 

3,360 

301 

107 

84 

55 

34 

26

3,360

June

62 

58 

58 

59 

68

63 

65 

65 

65 

69

72 

72 

78 

80 

76

76 

84 

80 

76 

75

75 

75 

76 

75 

74

72 

70 

66 

61 

59

July

55 

47 

46 

45 

45

45

46 

46 

46 

46

43 

43 

45 

43 

43

43 

43 

43 

47 

42

41 

40 

39 

39 

38

36 

35 

35 

35 

34 

34

Aug.

34 

33 

32 

32 

32

32 

31 

31 

31 

31

31 

31 

30 

30 

30

30 

29 

29 

29 

29

29

28 

28 

28 

28

28 

28 

27 

27 

27 

26

Sept.

26 

26 

26 

26 

26

25 

25 

24 

24 

24

24

23 

23

23

22

22 

22 

22 

21

21

21 

21 

21 

21 

21

21 

21 

21 

21

21

Mini Mean «ee?

13 14.1 867 

14.5 15.7 936 

11.5 14.0 859

11.5 135 98,080

11 13.0 797 

16 529 29,390 

337 967 59,450 

97 19? 11,470 

65 87.8 5,400 

58 70.1 4,170 

34 42.2 2,590 

26 23.7 1,830 

21 23.8 1,360

11 165 119,100

1,550 sec. -ft.; Feb. 27 (8:30 a.m.) 2,910

:.-ft.; Mar. 5 (1 to~2~pTm.) 3,640 sec.-ft.; Mar. 19 (10:30 a.m.) 980 sec.-ft.

» Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Hote.--ShiftIng-control method used June 23 to Sept.
32C CRAB CREEK BASIN

Crab Creek near Moses Lake, Wash.

Location.^-Water-stage recorder, lat. 47°11'25", long. 119°16'00", in SH^SE^ sec. 26, T. 

20 N., R. 28 E., 3 miles upstream from Parker Horn and 4 miles north of town of Moses 

Lake.

Records available.--September 1942 to September 1950.

Extremes. --Maximum discharge during year, 2,620 second-feet Mar. 8 (gage height, 5.43 feet); 

no flow Dec. 20-25, 27, Jan. 2 to Feb. 24.

1942-50: Maximum discharge, 2,810 second-feet Feb. 27, 1949 (gage height, 5.57 

feet); no flow during several months each year.

Remarks.--Records good above 10 second-feet and fair belaw. Some diversions in upper Crab 

Creek Basin for irrigation. Most of flow from upper basin jpasses this station under 

ground. No regulation.

Rating table, water year 1949-50, except period of bacKWater

(gage-height, In feet, and discharge, In second-feet)

(Shifting-control Method used June 24 to Sept. 27)

1.1 

1.3 

1.5 

1.7 

2.0

4.8

16

50

2.3

2.6 

3.0 

3.5 

4.0

107

176

292

500

820

4.5 

5.0 

5.5

1,260

1,860

2,710

Discharge, In second-feet, water year October 1949 to September 1950

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

Oct.

0.6 

.6 

.5 

.6 

.6

.6 

.6 

.6 

.5 

.4

.4 

.4 

.4 

.4 

.4

.3 

.3

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.4 

.4 

.4

Nov.

0.4 

.4 

.4 

.4 

.4

.3 

.3 

.2 

.2 

.3

.4 

.3 

.3

.2 

.2

.2 

.2

.2 

.2 

.2

'.2

.3 

.4 

.3

.2

.3 

.2 

.2 

.3

Dec.

0.3 

.2 

.2 

.2 

.2

.2

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

0

0 

0 

0 

0

0

.1

0

.2

.1 

.1 

.1

Jan.

0.1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0

0

0

0 

0

o

0 

0 

0

Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

86

310 

369 

418

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year 194C 

ary

.......................

h. ......................................

ter year 1949-50 .......................

Mar.

1,470 

1,940 

1,590 

1,260 

1,070

1,210 

1,940 

E.520 

2,430 

1,940

1,470 

1,090 

916 

764 

555

511 

446 

393 

350 

320

369 

567 

622 

585 

528

455 

418 

377 

342 

324 

302

Apr.

292 

260 

242 

227 

208

197 

181 

134 

120 

118

114 

111 

107 

103 

99

92 

90 

82 

80 

80

75 

78 

99 

136 

157

136 

140 

138 

131 

131

Secondfoot -days

12.8 

8.3 

3.2

27,128.9

.1 

1,183 

29,074 

4,158 

2,113 

527 

151.8 

44.1 

24.8

37,300.1

May

129 

125 

120 

107 

103

96 

94 

92 

90 

88

88 

88 

82 

76 

71

64 

64 

57 

50 

49

52 

47 

40 

35 

34

33 

34 

29 

27 

26 

23

Maximum

0.6 

.4 

.3

2,710

.1 

418 

2,520 

292 

129 

27 

20 

1.8 

1.0

2,520

June

26 

20 

18 

17 

15

10.5 

12 

10.5 

10 

9.6

9.6 

9.1 

7.6 

9.1 

10.5

13

13.5 

19 

20 

21

23 

23 

23 

24 

24

25 

27 

27 

26 

24

July

?0

17 

15 

13 

11.5

9.6 

8.1 

6.8 

4.5 

4.2

2.8 

2.6 

2.4 

2.0 

2.0

2.0 

2.2 

2.0 

2.4 

2.2

2.0 

1.8 

1.8 

1.8 

1.8

1.8 

1.7 

1.7 

1.7 

1.7 

1.7

Minimum

0.3 

.2 

0

0

0 

0 

302 

75 

23 

7.6 

1.7 

1.0 

.6

0

Aug.

1.7 

1.6 

1.7 

1.8 

1.8

1.7 

1.7 

1.7 

1.7 

1.7

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.1 

1.4 

1.4 

1.2

1.2 

1.2 

1.1 

1.2

1.2

1.1 

1.1 

1.1 

1.1 

1.0 

1.0

Mean

0.41 

.28 

.10

74.3

.003 

42.2

938 

139 

68.2 

17.6 

4.90 

1.42 

.83

102

Sept.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

.9 

.9 

,.9 

.9

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.7 

.8

.7 

.6 

c.7 

C.6 

c.7

Runoff In 

acre-feet

25 

16 

6.3

53,800

.2 

2,350 

57,670 

8,250 

4,190 

1,050 

301 

87 

49

73,990

Peak discharge (base, 200 see.-ft.). Mar. 2 (5 a.m.) 1,940 sec.-ft.; Mar. 8 (8 to 10 p.m.) 2,620 

sec.-ft.; Mar. 22 (12 p.m.) 634 sec.-ft.

c Backwater from construction of Irrigation ditch, discharge estimated.
CRAB CREEK BASIN 

Moses Lake at Moses Lake, Wash.

321

Location. Water-stage recorder, lat. 47°06' long, 119°20', in NE^ sec. 32, T. 19 N., R. 

as ET, at crossing of State Highway 18, ij- miles upstream from outlet and 3 miles southwest of town of Moses Lake. Datum of gage is mean sea level (Bureau of Reclamation 

bench mark).

Records available.--June 1909 to September 1914, November 1936 to September 1945 (fraginentary), October 1945 to September 1950. Records October 1912 to September 1914 

published as Moses Lake at Keppel.

Extremes. Maximum elevation during year, 1,048.29 feet Mar. 10; minimum, 1,046.14 feet

1909-14, 1936-50: Maximum elevation, that of Mar. 10, 1950; maximum observed, 

1,038.17 feet Aug. 27, 1910.

Remarks. Elevation controlled by dam at lake outlet. Many small diversions for irrigation.

Elevation, In feet, water year October 1949 to September 1950

Day| Oct .

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IV

18

19

20

21

22

23

24

25

26

2V

28

29

30

31

46.15

46.16

46.17

46.18

46,19

46.21

46.24

46.24

46.24

46.25

46.26

46.27

46.28

46.29

46.32

46.31

46.33

46,33

46.32

46.32

46.33

46.35

46.37

46.38

46.39

46.41

46.43

46.45

46.46

46.47

46.48

Nov.

46.49

46.51

Dec,

46.90

46.91

46.521 46.92

46.53

46.54

46.55

46.57

46.57

46.59

46.62

46.63

46.64

46.65

46.67

46.69

46.70

46.71

46.72

46.73

46.74

46.75

46.76

46.78

46.82

46.83

46.84

4t.85

46.86

46.87

46.89

-

46.93"

46.94

46.95

46.97

46.97

46.98

46.98

46. 9S

46.99

46.99

47 .00

47.01

47.01

47.02

47.03

47.04

47.05

47.06

47.06

47.05

47.05

47.04

47.04

47.04

47.04

47.04

47.03

47.03

Jan.

 \

47,02

47.02

47.02

47.02

47.02

47.02

47.02

47.03

47.01

47.02

47.02

47.02

47.02

47.02

47.02

47.02

47.02

47.02

47.02

47.02

47.02

47.02

47.01

47.01

47.01

47.02

47.03

47.03

47.03

47.02

47.02

Feb.

47.02

47.02

47.02

47.02

47.02

47.02

Mar.

47.26

47.35

47.40

47.41

47.39

47.39

47.02 47.52

47.02

47.02

47.02

47.00

46.94

46.89

46.85

46.82

46.78

46.74

46.70

46.68

46.63

46.61

46.58

46.57

46.58

46.65

46.74

46.84

47.04

_

-

47.77

48.01

48.20

48.2''

48.16

47.98

47.85

47.71

47.52

47.37

47.21

47.14

47.05

46.98

47.10

47.29

47.49

47.66

47.80

47.92

48.01

48.04

48.06

48.07

Apr.

48.04

47.98

47.92

47.87

47.82

47.78

47.74

47.66

47.59

47.57

47.57

47.57

47.55

47.54

47,53

47.51

47.50

47.48

47.47

47.46

47.43

47.41

47.38

47.38

47.42

47.47

47.54

47.60

47.64

47.68

-

May

47.74

47.75

47.74

47.72

June

47.49

47.48

47.48

47.49

47.69 47.49

47.66

47.65

47.64

47.62

47.61

47.50

47.59

47.58

47.58

47.59

47.59

47.58

47.56

47.56

47.55

47.55

47.56

47.54

47.54

47.53

47.52

47.51

47.50

47.49

47.47

47.48

47.47

47.52

47.52

47,54

47.55

47.55

47.57

47.58

47.63

47.67

47.70

47.72

47.74

47.76

47.77

47.78

47,73

47.72

47.72

47.72

47.72

47.72

47.72

47.72

47.72

-

July

47.70

47.68

47.66

47.65

47.64

47.61

47.58

47.55

47.53

47.51

47.48

47.46

47.43

47.41

47.38

47.36

47.34

47.32

47.31

47.30

47.28

47.27

47.25

47.23

47.21

47.18

47.14

47.11

47.08

47.05

47.04

Aug.

47.03

47.00

46.97

46.94

46.92

46.83

46.89

46.88

46.86

46.85

46.84

46.83

46.80

46.78

46.76

46.75

46.74

46.72

46.70

46.68

46.67

46.65

46.61

46.58

46.58

46.56

46.55

46.54

46.53

46.51

46.50

Sept.

46.49

46.48

46.46

46.44

46.44

46.43

46.42

46.39

46.39

46.38

46.37

46.36

46.35

46.35

46.33

46.33

46.33

46.33

46.34

46.34

46.34

46.34

46.33

46.33

46.34

46.33

46.33

46.34

46.32

46.31

-

Note. Add 1,000 feet to obtain elevation above mean sea level.
322 CRAB CREEK BA3IN

Crab Creek near Warden, Wash.

Location. Water-stage recorder, lat. 46°58'20", long. 119 C 15'40", in SE^S^ sec. 11, T. 

17 N. , R. 28 E., three-quarters of a mile downstream from Lind Coulee and 10 miles west 

of Warden.

Records available.--June 1909 to June 1312, October 1942 to September 1950.

Extremes.--Maximum discharge daring year, 750 second-feet Apr. 7 (gage height, 10.87 

reet); minimum not determined, occurred daring period of no gage-heig.hr record.

1909-12, 1942-50: Maximum discharge, 3,000 second-feet Feb. 7, 194S (gage height, 

14.25 feet, present datum), from rating curve ext°nded above 20 second-feet on basis 

of slope-area measurement of floi.d flow in Lind Coulee: no flow for- sho^t intervals in 

June and July 1948, when water was shut off during construction of 0'Sullivan Dam.

Discharge, In second-feet, water year October 1949 to September 1930

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28

29 

30 

31

Oct.

15.5 

17.5 

17.5 

17.5 

19.5

18.5 

18.5 

18.5 

19

21

21 

21 

20 

21

22 

21

20 

20

Q l 

22 

22 

22 

23

23 

23 

27 

26 

24 

24

Nov.

26 

26 

26

26 

26 

26 

27 

29

31

29 

28 

28

29

28

?a

28 

28

28 

29

31 

35 

38

34

34 

31 

27 

29

Dec.

29 

34

31 

27

21 

21

21

22

20

20 

bZO 

b20 

b20

b20 

b20 

b20 

b20 

18

17.5 

17.5 

18.5

22 

31

39

47 

52 

58

52

Jan.

b50 

b45 

b4O

b35

b30 

b35 

b35 

b40 

b40

b40 

b35 

b35 

bi5 

b35

35 

39 

42 

45 

48

48 

52

56 

55 

b50

47

48 

50 

b50 

b50 

b50

Feb.

b50 

*b50 

44 

44

45 

52 

56

124 

168

198 

262

270 

275 

280 

280 

363

372 

375

369

375

442 

455

442

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

mber. ...................................

lendar year 1949

St.... ..................................

ter yea> 1949-50 .......................

Mar.

415 

400 

442 

485

49S 

blO 

525 

540 

565

580

608 

620 

*620 

620

620 

620 

620 

620 

620

344

63 

62 

63 

62

62 

62 

188 

29 

53 

53

Apr.

55 

56 

224 

332

700 

611 

725 

700 

700

675 

660 

645 

632 

620

608 

595 

580 

565 

552

552 

540 

510 

498 

485

470 

442 

430 

400 

388

Secondfoot-days

£48

866.5

44,826.5

1,3£ 6,1" 

12,06 15,6" 

7,34

5E 

36 

4E

5 

0 

7 

5 

4 

0 

4 

4 

4

49,103.5

May

366 

348 

332 

311

285

258 

250 

250

250 

240 

230 

230 

230

230 

210 

21C 

210 

210

210 

200 

210 

200 

200

200 

200 

190 

180 

170 

160

Maximum

27 

38

60

830

56 

455

620 

725 

366 

160 

35 

20 

35

725

June

160 

150 

130

120

120 

130 

140 

130 

120

110 

110 

100 

100 

100

100 

90

90 

70 

60

60 

55 

55 

50

50

50 

50 

50 

45 

45

July

35 

30 

25 

25

20 

cO 

20 

cO 

?0

17 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

15 

15

12 

15 

15 

15 

15 

15

Minimum

15.5 

26 

17.5

11

30 

42 

29 

55 

160 

45 

12 

5 

5

5

Aug.

15 

15 

15 

15 

15

15 

15 

15 

15

15

15 

12 

10 

10 

10

13 

15 

15

12 

10

10 

10 

12 

15 

20

15 

10 

5 

5 

5 

5

Mean

20.9 

28.9 

28.0

123

42.7 

220 

389 

522 

237 

91.7 

17.9 

12.4 

15.1

135

Sept.

5 

5 

5 

5 

5

10 

15 

25 

35

35

30 

25 

20 

20 

17

15 

15 

15 

15 

10

10 

10 

10 

10 

12

15 

15 

15 

15 

15

Runoff In 

acre -feet

1,290 

1,720 

1,720

88,930

2,630 

12,240 

23,930 

31,090 

14,570 

5,450 

1,100 

762 

900

97,400

discharge measdrement made on this day.

b Stage-discharge relation affected by Ice.

Note. Doubtful gage-height record May 10-31; discharge computed on basis of 1 discharge measurement and records for station near Smyrna. Ho gage-height record June 1 to Sept. 30; discharge computed on basis of 3 discharge messurements and records fur station near Smyrna. Siifting-control 

method used Nov. 11 to Dec. 12, Mar. 29 to May 9.
CRAB CREEK BASIN 323

Crab Creek near Smyrna, Wash.

Location.--Water-stage recorder, lat. 46°50'35", long. 119°36'25", in SE^ sec. 30, T. 16 

II., K. 26 E., at county road bridge, "j miles east of Smyrna.

Records available. August 1942 to September 1950.

Bxtemes. Maximum discharge during year, 831 second-feet Apr. 9 (gage height, 5.01 feet); 

minimum, 0.1 second-foot A.ug. 31, Sept. 1.

1942-50: Maximum discharge, 3,300 second-feet Feb. 8, 1943 (gage height, 7.5 feet, 

estimated by observer), from rating curve extended above 1,000 second-feet; possibly no 

flow at times during summer of 1947.

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

those for periods of backwater or ice effect, which are poor. Many diversions above 

station for irrigation. Some regulation at 0'Sullivan Dam, Moses Lake, and headwater 

lakes.

Rating table, water year 1949-50, except periods of shifting control or ice effect 

(gage neight, in feet, and discharge, in second-feet)

1.4 5.6 2.6 48 4.5 420 

1.6 9.7 3.0 77 4.8 630 

1.8 15 3.4 120 5.0 820 

2.0 21 3.8 182 

2.3 33 4.2 285

Discharge, in second-feet, water year October 1949 to September 19fO

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

Oct.

.3 

.3 

.5 

.9

.1

!i

.3 

.9

.1 

.1 

.3 

.7 

.5

8.1 

8.4 

8.6 

8.6 

9.0

9.4 

10 

9.4 

9.4

9.7

10 

10 

10.5 

10.5 

10.5 

11

Nov.

11 

11.5 

11.5 

11.5 

11.5

12 

12 

12.5 

13.5 

12.5

8.4 

12

13 

13 

11

10.5 

10

11.5 

12.5 

12

12.5 

12.5 

14.5 

16

16

15.5 

19.5 

18 

17 

18

Dec.

18.5 

17.5 

*17 

17.5 

18

13 

17.5 

17 

16 

17

12.5 

11.5 

15.5 

18.5 

18.5

19.5 

20 

22 

17.5 

10.5

7.1 

6.5 

9.4 

15 

15.5

19.5 

24 

34

36 

32 

35

Jan.

31 

22 

13.5 

9.2 

7.7

7.1 

7.7 

8.1 

9.2 

12

17.5 

21 

23 

21 

21

20 

19.5 

20 

19.5 

19.5

21 

23 

27 

34 

24

623 

b22 

b2? 

b22 

b22 

*b22

Feb.

b22 

b22 

b22 

b22 

b22

b23 

b25 

b32 

b42 

55

72 

81 

86 

186 

250

252 

228 

282 

270 

247

305 

370 

317 

330 

321

313 

370 

370

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

MflV

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

370 

352 

334 

375 

415

462 

456 

480 

501 

536

*536 

598 

639 

648 

657

666 

648 

711 

711 

693

693 

356 

149 

141 

126

120 

115 

108 

155 

89 

72

Apr.

61 

63 

52 

119 

214

702 

684 

590 

750 

740

720 

711 

702 

634 

648

630 

630 

598 

582 

566

558 

522 

508 

501 

462

487 

450 

420 

395 

385

Secondfoot-days

257.8 

392.9 

574

37,319

591.5 

4,937 

12,912 

15,144 

7,458 

2,752 

336.6 

127.1 

303.5

45,786.4

May

385 

361 

338 

321 

301

313 

279 

273 

267 

267

255 

244 

236 

228 

231

223 

218 

211 

216 

216

206 

195 

209 

202 

197

197 

182 

189 

165 

172 

161

Maximum

11 

19.5

36

800

34

370 

711 

750 

385 

155 

35 

6.4 

31

750

June

155 

144 

129 

123 

114

119 

129 

141 

132 

116

106 

110 

105

100

104

90

80 

91 

82 

69

60 

58 

56 

53 

50

50 

49 

49 

46 

42

July

35 

30

27 

21 

20

15.5 

11 

9.7 

9.2 

8.8

8.4 

8.6 

3.6 

8.1 

7.3

7.1 

6.9 

7.1 

6.9

8.1

7.9 

7.7 

7.1 

6.9 

6.9

6.1 

5.4 

5.8 

6.1 

6.1 

6.3

Aug.

6.3 

6.3 

5.4 

5.3 

5.8

5.9 

5.6 

5.8 

5.8 

5.4

5.8 

5.6 

5.0 

C5.0 

05.0

c5.0 

6.0 

6.4 

2.8 

1.8

1.2 

1.9 

2.6 

2.8 

4.3

5.0 

1.9

.7 

.4 

.2 

.1

Sept.

0.1 

.2 

.3 

.2 

.2

.3

.6

ll' 

25

31 

29 

22 

17 

15

13.5 

11.5 

10.5 

9.4 

8.2

7.8 

d.2 

8.2 

8.2 

9.4

11 

11.5 

11.5 

11 

11

Mini, »an «£«.£

6.3 8.32 511 

8.4 13.1 779 

6.5 18.5 1,140

.8 102 74,030

7.1 19.1 1,170 

22 176 9,790 

72 417 25,610 

61 505 30,040 

161 241 14,790 

42 91.7 5,460 

5.4 10.9 668 

.1 4.10 252 

.1 10.1 602

.1 125 90,800

b Stage-discharge relation affected by ice.

c Backwater from rooks on controls discharge computed on basis of records from nearby streams.

Note. Shifting-control method used May 12 to Sept. 30.
324

Park Lake near Coulee City, Wash.

Location. Staff gage, lat. 47°35 1 , long. 119 0 24' , in NWt sec. 14, T. 24 N., R. £7 E 

i mile upstream from outlet and si miles southwest of Coulee City. Datum of gage

at mean sea level (Bureau of Reclamation bench mark). 

Records available. March 1938 to September 1950 (fragmentary).

Extremes.--1938-50: Maximum water-surface elevation observed, 1,096.44 feet Feb. 9, 1950; 

minimum observed, 1,094.17 feet Sept, 30, 1939.

Maximum elevation known, 1,101.3 feet (from well-defined alkali line at gage), date 

of occurrence unknown.

Remarks.--Gage read occasionally. Some diversion from tributary for Irrigation.

Elevation, In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

_

_

_

95.68

_

_

-

-

-

_

Nov.

_

_

_

_

-

95.90

_

95.91

-

-

1

|

-

_

-

_

_

-

_

_

_

95.78

95.31

_

_

_

-

-

.

_

_

_

-

_

_

_

-

_

_

95.78

_

-

Dec.

_

_

_

_

95.66

95.64

_

_

_

"

Jan.

_

_

_

_

-

_

_

_

- -

_

-

,

.

_

_

-

-

96.30

Feb.

.

_

_

_

-

_

96.42

96.44

-

_

_

_

96.30

96.22

Mar.

_

_

_

Apr.

-

-

-

i

-

_

_

_

-

-

_

95.99

96.00

-

_

_

i 1

- -

95.80

_

-

-

-

-

95.90

-

95.95

-

-

_

-

-

. 1

.

i

-

-

_

_

_

_

-

96.06

-

_

_

_

-

_

_

_

_

-

_

_

-

_

_

_

95.87

95.88

_

-

-

_

95.83

I

-

-

-

May

-

-

~

_

-

95.80

-

95.80

-

-

_

-

-

-

-

_

-

-

_

-

_

-

-

-

95.56

_

-

-

~

: j :

June

~

-

95.52

-

-

-

-

~

_

-

-

-

~

-

July

-

-

-

-

95.64

-

-

-

-

-

_

-

-

"

-

-

- i

95.97

-

96.00

-

-

-

-

_

-

-

-

-

~

-

95. 5S

.

-

-

95.51

-

-

-

-

-

-

Aug.

_

-

-

95.48

-

-

-

-

"

_

-

-

-

~

-

-

-

-

-

95.45

-

-

95.45

-

-

-

-

-

-

Sept.

-

-

-

-

95.41

.

-

-

-

~

-

-

-

-

~

-

-

-

-

-

95.46

-

-

-

-

-

-

-

-

-

~

Note. Add 1,000 feet to obtain elevation above mean sea level.
CRAB CREEK BASIN 

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

325

Location. Water-stage recorder, lat. 47°34', long. 119 0 25', in SW^ sec. 15, T. 24 N., R. 

av E., 100 feet upstream from mouth, 500 feet downstream from Park Lake, and 6j miles 

southeast of Coulee City.

Records available.--July 1945 to September 1950.

Extremes.--Maximum discharge during year. 25 second-feet Feb. 12; maximum gage height, 

a.Ob feet Jan. 28 (backwater from ice); minimum discharge, 0.4 second-foot Sept. 30 

(gage height, 1.70 feet).

1945-50: Maximum discharge, 26 second-feet Feb. 25, 1949; maximum gage height, that 

of Jan. 28, 1950; minimum discharge not determined, probably less than 0.1 second-foot 

during period Aug. 17 to Sept. 21, or Oct. 1-17, 1945

Remarks. Records good except those for periods of ice effect, which are poor. Some di 

si on during summer months for irrigation above Park Lake. No known regulation.

Rating table, water year 1949-50, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

.ver1.7 0.4 2.0 3.1 2.3 10.5 

l.B 1.0 2.1 4.9 2.4 16 

1.9 1.8 2.2 7.3 2.5 25

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.1 

2.1 

2.1 

2.3 

2.4

2.4

2.7 

2.7 

3.0

2.7

2.7 

2.7 

2.8 

2.8 

2.8

3.1 

3.0 

2.7 

2.4 

2.4

2.5

2.7 

2.7 

3.0 

3.1

3.3 

3.7 

4.3 

4.7 

4.1 

4.1

Nov.

4.3 

4.5 

4.5 

4.7 

4.9

4.9 

4.7 

5.B 

11 

12

11 

9.7 

9.4 

9.0 

9.4

8.8 

9.7 

11 

9.4 

8.8

8.4 

8.8 

9.4 

9.7 

9.4

9.0 

11 

12 

12 

13

Dec.

12 

10.5 

10.5 

10 

9.7

*9.4 

9.0 

8.8 

8.4 

3.5

.9 

3.3 

6.8 

7.6 

7.0

7.3 

7.3 

3.7 

.2 

.0

.6 

.4 

.2 

.2 

.3

1.4 

4.9 

10.5 

5.6 

2.1 

1.7

Jan.

1.6 

bl.5 

1.4 

bl.4 

bl.5

bl.6 

1.7 

1.7 

1.8 

2.3

10 

9.4 

5.6 

1.4 

1.9

*2.7 

3.3 

3.5 

3.7 

16.5

19.5 

18.5 

17 

3.9 

3.3

b3.3 

b3.1 

b3.1 

b2.9 

b2.8 

b2.8

Feb.

b3.0 

b3.0 

b3.1 

b3.4 

b4.0

b5.0 

b6.0 

b7.B 

8.2 

7.9

8.2 

11.5 

23 

22 

21

20 

18.5 

19.5

21 

18.5

18 

17 

17 

18 

18

17

17 

17

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

IB 

17 

IB 

19,5 

IB, 5

20 

19.5 

IB. 5 

IB 

18

IB 

17 

*16 

16 

16

15.5 

15.5 

15.5 

16 

15.5

15.5 

15.5 

15.5 

15.5 

15

15 

15 

14 

14 

13.5 

13.5

Apr.

13 

13 

]3 

12 

12

3.5 

1.6 

7.8 

11.5 

14

11.5 

3.7 

5.0 

13.5

13.5

11 

5.B 

9.7 

9.7 

9.4

8.8 

9.4 

10 

10 

9.7

9.4 

11 

11 

10 

10

fSESk

90.1 

260.2 

170.8

2,381.2

154.7 

373.6 

508 

293.5 

261.8 

166 

49.6 

33.8 

45.8

2,407.9

May

10 

10.5 

10 

10.5 

10

10 

9.7 

9.7 

9.4 

9.4

9.4 

9.0

S.B 

S.B 

B.4

8.4 

B.2 

7.9 

7.9 

7.6

7.6 

7.6 

7.3 

7.0 

7.3

7.3 

7.3 

7.0 

6.8 

6.5 

6.5

Maxima

4.7

13 

12

25

19.5 

23 

20 

14 

10.5 

16 

2.7 

1.6 

7.6

23

June

3.4 

.B 

1.4 

1.2 

.9

.8 

.1 

.1

.1

.1 

.3

.3 

.3 

.6

6.5 

B.2 

5.1 

3.1 

2.7

11.5 

16 

15.5 

15 

14

13.5 

13 

13 

7.9 

1.4

July

1.3 

2.3 

l.B 

1.8 

1.4

1.2 

1.1 

1.1 

1.4 

1.4

1.3 

2.3 

2.7 

2.5

2.1

1.5 

1.1 

1.2 

1.4 

2.0

1.9 

1.6 

1.4 

1.4 

1.4

1.4 

1.4 

1.9 

1.6 

1.3 

1.4

Aug.

1.3 

1.2 

1.4 

1.1 

.9

.9 

1.0

1.2 

1.0 

1.1

1.6 

1.3 

1.2 

1.1 

1.2

1.1 

1.1 

1.1 

1.0 

1.1

1.0 

1.0

1.1

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

.9 

.9

Minimum Mean

2.1 2.91 

4.3 B.67 

.9 5.51

.5 6.52

1.4 4.99 

3.0 13.3 

13.5 16.4 

1.6 9.78 

6.5 8.45 

.8 5.53 

1.1 1.60 

.9 1.09 

.6 1.53

.6 6 . 60

Sept.

0.9 

.9 

1.1 

1.0 

.9

.9 

.8

.6 

.6

.6

.6 

.6 

.6 

.6 

.7

.6 

.6 

.6 

.7 

.7

.7 

.B 

.B 

2.1 

7.6

6.B 

6.0 

2.5 

.6 

3.3

a e-fee?

179 

516 

339

4,730

307 

741 

1,010 

582 

519 

329 

98 

67 

91

4,780

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
326 CRAB CREEK BASIH

Blue Lake near Coulee City, Wash.

Location. Staff gage, lat. 47°34', long. 119°26', in SE£ sec. 16, T. 24 N., R. 27 E.,

 S>J miles upstream from outlet and 7 miles southwest of Coulee City. Datum of gage is 

at mean sea level (Bureau of Reclamation tench mark).

Records available. March 1938 to September 1950 (fragmentary).

Extremes.--1938-50: Maximum elevation observed, 1,093.39 feet June 11, 1948; minimum ob-

 served, 1,090.50 feet Nov. 10, 1939.

Maximum elevation known, 1,101.2 feet (from alkali line at gage); date of occurrence 

unknown.

Remarks. Gage read occasionally. Some diversion from tributaries for irrigation.

Elevation, In feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

_

-

-

91.38

_

_

-

-

-

_

_

-

-

-

_

_

_

-

-

_

_

_

_

91.47

_

_

_

_

-

-

Nov.

_

_

_

_

-

91.72

_

91.75

_

-

_

^

_

-

-

_

_

_

_

-

_

_

_

_

-

_

_

92.50

-

Dec.

-

_

_

-

92.65

92.67

_

_

_

-

_

_

_

_

-

_

_

_

_

-

.

_

_

_

-

92.88

_

_

-

Jan. Feb.

.

_

_

_

-

_

_

_

93.10

-

_

_

93.16

_

93.22

93.23

_

_

-

_

_

93.13

-

_

_

_

_

-

Mar.

_

93.16

_

-

_

_

_

-

_

93.16

92.12

-

_

_

_

-

_

_

_

_

-

_

_

93.06

Apr.

_

_

_

93.00

_

_

_

-

92.95

_

92.88

-

_

_

_

-

_

_

_

92.82

_

_

_

-

Hay

_

_

_

-

92.92

92.90

-

_

_

_

_

-

_

_

-

_'_

_

92.86

_

_

_

_

-

June

_

_

_

92.78

_

_

_

_

-

_

_

_

_

-

_

_

92.90

92.88

_

_

-

_

_

_

-

Julv

_

_

_

92.79

_

_

.

-

.

_

_

_

-

_

_

_

92.54

_

92.55

_

_

-

Aug.

_

_

92.37

-

_

_

_

-

.

_

.

_

-

_

_

_

-

93.23

_

_

92.20

_

-

Sept.

_

_

_

92.07

_

_

_

_

-

.

_

_

_

-

_

_

-

91.90

_

_

-

_

_

-

Note. Add 1,000 feet to obtain elevation above mean sea level.
CRAB CREEK BASIN 327

Lenore Lake near Soap Lake, Wash.

Location. Staff gage, lat. 47°31", long. 119°30', in SW^ sec. 1, T. 23 N., P.. 26 E.,

bj miles upstream from outlet and 9 miles north of town of Soap Lake. I atom of gage is 

at mean sea level (Bureau of Reclamation bench mark).

Records available. July 1936, March 1938 to September 1950 (fragmentary).

Extremes. 1936, 1938-50: Maximum elevation observed, 1,084.49 feet Apr. E , 1950; minimum 

 observed, 1,076.65 feet Oct. 26, 1940.

Maximum elevation known, 1,092.2 feet (from well-defined alkali line at gage); date 

of occurrence unknown.

Remarks. Gage read occasionally. Some diversion from tributaries for irrigation.

Elevation, In feet, water year October 1949 to September 1950

Day

4

b

6

8

9

11

13

14

16

17

19

21

23

25

26

27

28

29

31

Oct.

_

81.68

_

_

_

_

_

_

_

-

_

_

81.63

_

_

-

Nov.

_

-

_

81.60

_

_

_

_

-

_

_

-

81.95

_

-

Dec.

_

81.80

81.83

_

_

_

_

_

-

_

-

_

-

Jan.

_

82.10

_

_

_

_

_

-

_

-

_

-

Feb.

_

-

_

82.41

82.42

82.58

_

-

82.67

-

-

Mar.

_

-

_

83.36

83.38

_

-

83.55

-

83.90

-

Apr.

_

84.49

_

84.15

84.16

_

84.32

_

84.29

-

May

_

-

84.38

84.35

_

_

_

-

_

84.24

-

June

_

84.23

_

_

84.38

84.39

-

_

-

July

_

84.27

_

_

_

_

_

_

84.00

.

-

_

-

Aug.

83.71

-

_

_

_

_

_

-

83.49

_

83.37

-

Sept.

_

83.2

_

_

_

_

_

-

83.0

_

-

-

 Add 1,000 feet to obtain elevation above mean sea level. 

O - 53 - 22
328 CRAB CREEK BASIN

Soap Lake near Soap Lake, Wash.

Location. Staff gage, lat. 47°25', long. 119°30', in SEij sec. 12, T. 22 N., R. 26 E., lj 

miles upstream from outlet and 2 miles north of town of Soap Lake. Datum of gage is at 

mean sea level (Bureau of Reclamation bench mark).

Records available. May to August 1936, March 1938 to September 1950 (fragmentary).

Extremes. 1936, 1938-50: Maximum elevation observed, 1,075.58 feet June 21, 1950; mini- 

 mum observed, 1,070.87 feet Oct. 21, 1939.

Maximum elevation known, 1,083.1 feet (from well-defined alkali line at gage), date 

of occurrence unknown.

Remarks. Gage read occasionally. Some diversion from tributaries for irrigation.

Elevation, In feet, water year October 1949 to September 1950

Day

3

5 

6

1 ft

313

16

17 

13

19

?.o

i

or*

25

26 

2? 

23 

29 

30 

31

Oct.

73.20

-

-

-

73.24

Nov.

73.36

-

.

73.60

Dec

73.74 

73.75

-

.

73.43

Jan.

;

-

73.19

_

:

Feb.

-

74.59

74.68

-

:

Mar.

;

-

75.09

75.26

Apr.

-

75.40

75.26

May

75.40

-

_

75.35

June

75.30

-

75.58

:

July

75.52

-

:

Aug.

75 19

~

-

75.13

75.09

Sept.

74.98

-

74.91

:

Note. Add 1,000 feet to obtain elevation above mean sea level.
ORAB CREEK BASIN 329

Rocky Ford Creek near Ephrata, Wash.

Location. Water-stage recorder, lat. 47°18'20", long. 119°26<50", in WWirNWt sec. 21, T. 

21 W., R, 27 E., 5 miles east of Ephrata and 5-j miles upstream from mouth.

Records available.--June 1909 to December 1911 (fragmentary), August 1942 to September 

1950.

Extremes.--Maximum discharge during year, 135 second-feet part of each day Apr. 27, May 

 1-9, 12 (gage height, 2.76 feet); minimum, 58 second-feet Feb. 26 to Mar. 4.

1909-11, 1942-50: Maximum discharge, 143 second-feet Apr. 23, 1949 (gage height, 

2.84 feet); minimum, 20 second-feet Aug. 13-18, 1911.

Remarks.--Records fair. No diversion. Some regulation by temporary dams for irrigation 

and by fish hatchery.

Rating table, water year 1949-50 (gage height., in feet, 

and discharge, in second-reet)

1.7 

1.9 110

139

Discharge, In second-feet, water year October 1949 to September 19&0

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

85 

65 

65

85 

85

86 

85 

34 

34 

84

84 

84 

34 

34 

84

83 

84

84 

84

54 

84 

84 

83

83

33 

83

83 

83

83

Nov.

32 

8Z 

82 

32 

31

81 

80 

79 

30 

80

79 

79 

79 

79 

79

78 

77 

77 

77 

77

77 

77 

77 

77 

77

76 

77 

7S 

75 

75

Dec.

74 

74 

74 

74 

74

73 

73 

73 

73 

72

72 

72 

72

72 

71

71

n

70 

70 

70

70 

70 

69 

70 

70

69 

69

69 

69 

69

1 

Jan.

K3 

65 

67 

57 

67

67 

67 

67 

67 

57

66 

66 

66 

66 

66

66 

66 

66

66

65 

64 

64 

64

64 

64

E3 

63

Feb.

62 

62

61

51 6 1

61 

60 

SO 

60 

60

60 

60 

60 

60 

60

59 

59 

59 

59 

59

58 

53 

58

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June

July 

Augu 

Sept

Wa

ber.. ...................................

mber ....................................

lendar year 1949 

ary

st... ...................................

ter year 1949-50 .......................

 

Mar.

58 

58 

53 

58 

59

59 

59

60 

60 

61

61 

63 

64 

66 

67

69 

70 

72 

74

76

73 

80 

82 

93 

34

87 

38 

90 

91 

94 

95

Apr.

96 

100 

jGl 

103 

105

107 

109 

111 

114 

114

115 

117 

118 

120 

121

122

123 

124

125 

126

127 

127 

128 

129 

130

131 

132 

131 

132 

132

Secondfoot-days

2.601 

2,354

34,704

z,

2, 

3, 

4, 

3, 

3,

3'

034

684 

225 

572

111 

751 

520 

403 

030

34,593

May

134 

134 

135 

134 

134

134 

134 

134 

134 

134

134 

134 

134 

134 

133

133 

133 

132 

J32 

132

132 

132

131 

131 

171

131 

131 

130 

130 

130 

130

Maximum

flC

8Z 

74

135

63 

62 

95 

132 

135 

130 

120 

113 

106

135

June

130 

123 

129 

129 

129

129 

129

123 

123 

127

127

127 

126 

127 

126

125

125 

124 

124 

123

122 

122

1E2 

121 

121

121 

121 

120 

120 

120

July Aug.

120 

113 

119 

119 

119

119 

119 

119 

119 

119

119 

118 

118 

113 

117

117 

117 

116 

116

116

115 

115 

115 

114 

114

114

114 

114 

114 

114

114

Minimum

62 

75 

63

65

62

58 

53 

38 

130 

120 

114 

106 

37

58

113 

113

113 

113 

112

112 

112 

112

111 

111

111 

111 

111 

110 

110

110 

110 

110 

110 

109

109 

109 

108 

108 

108

107 

106 

106 

103 

106 

106

Mean

83.9

78. G 

71.2

95,1

65.6

60.1 

71.3 

119 

133 

125 

117 

110 

101

94.8

Sept.

106 

105 

105 

105 

104

104 

104 

104 

103 

103

103 

102 

101 

101 

101

101 

100 

100 

99 

99

93

99 

99 

99 

93

98

97

97 

97

Runoff in 

acre-feet

5,160 

4,670 

4,380

68,340

4 , 030 

3,340 

4,410 

7,030 

3,150 

7,440 

7,130 

6,750 

6,010

63 , 600
330 YAKIMA RIVER BASIN

Yakima River near Martin, Wash.

rom dam 

12 miles

Location. Water-stage recorder, lat. 47°19'10", long. 121°20'10", just do-<mstream f 

at outlet of Keechelus Lake, 3| miles northwest of Martin, Kittitas County, and 1 

upstream from Easton.

Drainage area. 55 square miles .

Records available. --October 1903 to September 1950.

Average discharge . - -46 years (1904-50), 326 second-feet (adjusted for storage since January 190b ) .

Extremes . Maximum discharge during year, 1,930 second-feet June 30; maximum gage neight, 

7.74 feet Dec. 20; minimum discharge, 9.6 second-feet June 1, 2, 16, 17; minimum gage 

height, 2.28 feet June 11-17.

1903-50: Maximum discharge, 7,370 second-feet Mar. 26. 1915, when temporary crib dam 

was washed out; practically no flow when gates in Keechelus Lake Dam are closed.

Remarks . --Records good. Plow regulated by Keechelus Lake (see p. 335). Keechelus Lake spillway discharge, computed from reservoir elevations and spillway rating, bypasses gage and 

is added to flow at station.

Cooperation. --Records collected and prepared in cooperation with Bureau of Reclamation. 

Revisions. --W 332: Drainage area.

Discharge, in second-feet, water year October 1949 to September 19fO

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25 

26

27 

28 

29 

30 

31

Oct.

591 

565 

565 

565 

565

555 

565 

565 

565 

565

565 

565 

565 

387 

289

473 

565 

565 

565 

565

565 

565 

565 

565 

565

565 

565 

565

578 

578 

578

Nov.

565 

565 

565 

565

5S5

565 

565 

565 

565

565

565 

565 

565 

578 

578

578 

578 

578 

565 

565

578 

591 

645 

673 

716

761 

824 

889 

957 

1,030

Month

Octo 

Hove 

Dece

Cal

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wat

ber

endar year 1949

ember ...........

er year 1949-50

Dec.

1,060 

1,O6O

1,060 

1,060 

1,060

1,060 

1,060 

1,060 

1,060

1,060

1,060 

1,06O 

1,060 

1,06O 

1,060

1,O60 

1,060 

1,060 

1,060 

1,060

1,060 

521 

140 

139 

139

140 

142 

147 

149 

193 

223

Jan.

223 

223 

298 

325 

325

325 

325 

325 

325 

325

325 

3Z5 

325 

325

325

281 

179 

179 

179 

224

239 

239 

247 

280 

316

316 

316 

316 

307 

316 

316

Feb.

316 

316 

316 

307 

307

298 

298 

298 

298 

298

239 

289 

289 

289 

289

2 SO 

298 

307 

307 

307

307 

307 

307 

307 

307

307 

307 

307

Mar.

307 

307 

307 

316 

31S

316 

316 

307 

307 

307

307 

307 

307 

307 

334

414 

503 

528 

528 

565

618 

632 

632 

618 

618

618 

618 

618 

618 

618 

618

Observed

Discharge la 

second-feet

Maximum

591 

1,030 

1,060

1,060

325

316 

632 

618 

540 

1,870 

1,680 

528 

761

1,870

Minimum

289 

565 

139

8.8

179 

280 

307 

307 

10 

9.6 

528 

393 

540

9.6

Mean

549 

634 

780

367

287 

302 

453 

434 

385 

172 

890 

414 

70O

502

Runoff 

in 

acre- feet

33,790 

37,740 

47,990

265,600

17,640 

16,760 

27,830 

25,810 

23,700 

10,230 

54,750 

25,470 

41,680

363,400

Apr.

618 

618 

618 

618 

591

578 

503 

446 

403 

363

325 

316 

307 

307 

325

363 

414 

435 

446 

457

457 

457 

457 

435 

414

383 

373 

344 

325 

316

Hay

307 

307 

307 

307 

316

307 

307 

307 

316 

334

383 

480 

540 

528 

528

515 

528 

528 

528 

528

528 

528 

528

528 

528

468 

435 

172 

12 

10 

10

Change in 

contents

in 

Keechelus 

Lake 

(acre-feet)

-14,140 

90 

-25,620

+30,720

-3,720 

-5,960 

-6,170 

-6,630 

+22,420 

+68,390 

-16,440 

-16,480 

-37,210

-41,650

June

9.6 

9.6

10 

10 

10

10 

10 

10 

10 

10

10

10 

10 

10 

10

9.6 

9.6 

10 

10 

10

10 

10 

10 

10 

10

10 

305 

984 

1,740 

1,870

July

1,680 

1,490 

1,300

1 , 250

1,200

1,160

1,070 

973 

88? 

818

803 

82 1 

957 

957 

957

957 

85 5 

773 

773 

773

773 

773 

776 

776 

773

610 

523 

528 

528 

528 

528

Aug.

528 

468 

435 

403

393

393 

393 

393 

393 

393

393 

393 

393 

393 

393

393 

393 

393

393 

393

393 

393 

393 

393 

393

393 

393 

457 

503 

503 

503

Sept.

540 

552 

552 

552 

552

552 

604 

659 

645 

659

716 

746 

761 

761 

761

761 

761 

761 

761 

761

746 

761 

761 

761 

761

761 

761 

761 

761 

761

Adjusted for change in contents

Runoff 

in 

acre- feet

19,650 

37,650 

22,370

296,300

13,920 

10,800 

21,660 

19,180 

46,120 

78,620 

38,310 

8,990 

4,470

321,700

Discharge in 

second-feet

Per 

Mein square 

mile

320 5.82 

633 11.5 

364 6.62

409 7.44

226 4.11 

194 3.53 

352 B.40 

322 5.85 

750 13.6 

1,321 24.0 

623 11.3 

146 2.65 

75.1 1.37

444 8.07

Runoff 

in 

inches

6,70 

12.84 

7.63

101.03

4.75 

3.68 

7.38 

6.54 

15.72 

26.80 

13.06 

3.06 

1.52

109.68

Note. Spill occurred June 27 to July 10.
YAKIMA RIVER BASIN 331

Yakima River at Cle Elum, Wash.

Location.--Water-stage recorder, lat. 47°11'20", long. 120°56'40", in sec. 27, T. 20 N. , R.

 IFTTT, at highway bridge at Cle Elum, just upstream from Roslyn Creek and 7 miles upstream from Teanaway River.

Drainage area. 500 square miles.

Kecoras available. August 1906 to September 1950.

Average discharger .--44 years, 1,950 second-feet (adjusted for storage since October 1906 

ana diversions since 1930).

Extremes.--Maximum discharge during year, 6,800 second-feet June 30, July 1; maximum gage

 height, 10.09 feet June 30; minimum discharge, 512 second-feet Jan. 18 (gage height,

5.45 feet).

1906-50: Maximum discharge, 25,600 second-feet Nov. 14, 1906 (gage h?ight, 12.5

feet, from floodmarks); minimum, 64 second-feet Nov. 16, 17, 1929, Dec. 4, 1936. 

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

 HTas high-line canal diverts water above station for irrigation. Flow partly regulated

by Keechelus, Kachess, and Cle Elum Lakes (see p. 335).

Cooperation. Records collected and prepared in cooperation with Bureau of Reclamation. 

HevisionsTwater years).--W 369: 1910. W 832: 1936.

Rating table, water year 1949-50, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet)

5.5 

5.7 

6.0 

6.5 

7.0

540

660

1,310

1,840

7.5 

8,0 

9.0 

10.1

2,450

3,120

4,700

6,800

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3,190

3,190

3,120

3,120

3,120

3,120

3,050

2,980

1,960

1,980

3,050

3,050

2,980

2,230

648

1,280

2,910

3,050

3,050

3,120

3,340

3,260

3,190.

3,050

2,980

2,910

2,780

2,780

3,050

2,910

2,780

Month

October. . . .

November . . .

December. . .

Calendar 

year 1949

January ....

February. . .

March. .....

April. .....

May........

June. ......

July.. .....

August. ....

September. .

Water year 

1949-50

Nov.

2,710

2,52

2,52

2,38

0

0

0

2,320

2,260

1,56

86

82

0

3

8

821

828

91

1,03

8

0

0

1,080

1,020

97

94

93

8£

4

2

0

6

870

87

9£

1,4]

1,56

1,6£

2,7£

3,4:

2,8^

2,3£

8

2

0

0

0

0

0

0

0

Dec.

2,140

2,200

2,140

2,020

1,900

1,780

1,680

1,620

1,620

1,560

1,510

1,510

1,510

1,460

1,460

1,410

1,410

1,410

1,360

1,310

1,360

1,360

814

612

558

552

660

1,200

1,270

1,080

942

Jan.

886

807

737

807

835

807

786

744

730

709

709

702

618

606

600

660

606

564

600

630

648

688

702

648

636

612

681

737

751

744

716

Feb.

779

765

842

902

835

814

751

709

695

688

681

681

688

681

681

702

709

723

716

709

702

716

744

856

958

950

934

886

_

.

-

Observed

Discharge In 

second-feet

Maximum

3,340

3,410

2,200

7,240

886

958

1,680

2,450

4,880

6,600

6,800

3,050

3,190

6,800

Minimum Mean

648 2,814

821 1,568

552 1,401

408 2,233

564 700

681 768

821 1,266

1,330 1,928

1,840 3,801

2,840 4,141

1,200 3,533

2,380 2,650

1,130 2,828

552 2,292

Runoff 

In

acre-feet

173,000

93,280

86,120

1,617,000

43,050

42,640

77,820

114,700

233,700

246,400

217,200

163,000

168,300

1,659,000

Mar.

842

821

863

1,160

1,460

1,410

1,220

1,130

1,050

998

918

849

849

910

942

1,080

1,360

1,510

1,460

1,410

1,510

1,510

1,460

1,460

1,510

1,560

1,560

1,560

1,560

1,620

1,680

Apr.

1,900

2,020

1,960

1,960

1,900

1,900

1,840

1,780

1,680

1,620

1,620

1,620

1,730

1,780

1,840

2,020

2,200

2,010

1,330

2,260

2,450

2,450

2,380

2,200

2,080

1,960

1,960

1,840

1,780

1,780

-

Change 

in 

contents 

( acrefeet )t

-102,100

+ 102,100

+52,800

-5,710

+36,200

+20,920

+40,520

+29,610

+84,350

+196,300

-47,700

-153,900

-190,900

+68,190

May

1,840

2,260

2,640

2,580

2,580

2,780

2,710

2,780

2,840

2,980

3,410

4,030

4,700

4,700

4,700

4,530

4,360

4,110

4,110

4,190

4,190

4,530

4,360

4,190

4,190

4,530

4,880

4,880

4,530

4,360

4,360

Diversion

by 

Kittltas 

Canal

(acrefeet)

15,560

0

0

281,300

0

0

0

420

35,630

37,750

66,410

69,320

51,980

277,100

June

4,530

4,360

4,190

4,110

4,110

3,640

3,260

3,050

2,840

2,980

3,190

3,340

3,560

3,480

3,410

3,560

3,790

3,870

4,030

4,530

4,880

4,700

5,240

5,430

5,060

4,190

3,950

4,530

5,810

6,600

-

July

6,800

6,600

6,200

6,000

5,620

5,430

5,430

5,060

4,190

3,790

4,030

4,550

2,720

1,200

2,380

2,450

2,520

2,520

2,450

2,450

2,450

2,450

2,520

2,520

2,520

2,450

2,520

2,520

2,4EO

2.3EO

2,3fO

Aug.

2,380

2,450

2,380

2,450

2,380

2,380

2,380

2,380

2,380

2,380

2,380

2,520

2,580

2,580

2,640

2,710

2,710

2,710

2,780

2,780

2,780

2,710

2,780

2,840

2,840

2,910

2,910

2,910

3,050

3,050

3,050

Sept

3,050

3,120

3,120

3,120

3,120

3,120

3,190

3,190

3,190

3,190

3,190

3,120

3,050

2,930

2,980

2,980

2,910

2,910

2,840

2,710

2,710

2,640

2,520

2,520

2,520

2,580

2,580

2,240

1,730

1,730

-

Adjusted for change In contents

and diversion

Runoff

in 

acre-feet

86,460

195,400

138,900

1,892,000

79,250

63,560

118,300

144,700

353,700

480,400

235,900

78,420

29,380

2,004,000

Discharge in 

second-feet

Mean

1,406

3,284

2,259

2,613

1,289

1,144

1,924

2,43?

5,75?

8,073

3,837

1,275

49.1

2,763

Per 

square

mile

2.81

6.57

4.52

5.23

2.58

2.29

3.85

4.86

11.5

16.1

7.67

2.55

.988

5.54

Runoff

in 

inches

3.24

7.33

5.21

70.96

2.97

2.38

4.44

5.43

13.26

18.01

8.85

2.94

1.10

75.15

t Change In contents in Keechelus, Kachess, and Cle Elu 

Note.--Shifting-control method used Jan. 25 to Apr. 10,

r. Lakes. 

June 24-29, Aug. 18 to Ser>t. 30.
332 YAKIMA RIVER BASIN

Yakima River at TJmtanum, Wash,

Location.--Water-stage recorder, lat. 46°51'45", long. 120°28'30", in NW-ij sec. 20, T. 16 

N., K. 13 E., at Umtanum, half a mile upstream from Umtanum Creek and 10 miles south 

fo Ellertsburg. Datum of gage is 1,300.0 feet above mean sea level, datom of 1929.

Drainage area. 1,620 square miles.

Records available.--August 1906 to September 1950 (fragmentary October 1915 to March 1931).

Extremes. Maximum discharge during year, 9,680 second-feet May 13; minimum not determined, 

probably occurred during period of no gage-height record or ice effect.

1906-50: Maximum discharge, 41,000 second-feet Nov. 15 or 16, 1906 (gage height, 

41.1 feet, from floodmarks, present datum); minimum, 133 second-feet Oct. 3, 1915 (gage 

height, 2.86 feet, datum then in use).

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are poor. Flow partly regulated by Keechelus, Kachess, and Cle Elum Lakes 

(see p. 335). Water diverted above station for irrigation of about 91,000 acres.

Cooperation.--Records collected and prepared in cooperation with Bureau of Reclamation. 

Revisions (water years).--tf 412: 1914.

Rating table, water year 1949-50, except periods of Ice effect 

(gage height, In feet, and discharge, in second-feet)

30. S 760 32.5 3,500 

30.8 945 33.0 4,600 

31.1 1,260 33.5 5,880 

31.5 1,770 34.0 7,340 

32.0 2,550 34.6 9,320

Discharge, In second-feet, water year October 1949 to September 1930

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

E4 

25

26 

27 

28 

29 

30 

31

Oct.

3,500 

3,500 

3,400 

3,400 

3,400

3,400 

3,300 

3,200 

2,500 

2,300

3,300 

3,300 

3, son 

3,300 

3,300

1,000 

2,610 

3,400 

3,400 

3, 400

3,500 

3,600 

3,500 

3,400 

3,300

3,200 

3,100 

3,100 

3.600 

3,400 

3,200

Nov.

3,100 

3,000 

2,820 

2,730 

2,730

2,640 

2,550 

1,400 

1,190 

1,130

1,080 

1,160 

1,230 

i,510 

1,910

1,700 

1,460 

1,390 

1,310 

1,260

1,230 

1,180 

1,280

1,730 

2,380

2,380 

4,290 

5,610 

4,600 

3,820

Dec.

3,300 

3,200 

3,300 

3,000 

2,730

2,640 

*2,380 

2,220 

2,220 

2,140

1,980 

1,900 

1,850 

1,800

1,700

1,700 

1,650 

1,650 

1,600 

1,600

1,600 

1,600 

1,500 

1,000 

800

750 

800 

1,400 

1,800 

1,700 

1,500

Jan.

1,200

i, ooo

1,000

950 

1,000

1,000

950 

950 

950 

950

1,000 

1, 100 

950 

850 

850

900 

b900 

850 

b800 

bBOO

6850 

b850 

b900 

*b900 

b850

850 

900 

950 

900 

850 

850

Feb.

900 

b900 

b950 

bl,000 

bl, 100

bl,050 

bl,000 

b950 

b900 

b900

b900 

b900 

b900 

b900 

b900

b900 

b900 

b900 

b900 

b900

b950 

995 

*1,040 

1,140 

1,710

2,140 

2,140 

1,910

Month

Octo 

Kove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

1,760 

1,670 

1,910 

3,820 

4,840

4,480 

3,600 

3,100 

2,730 

2,460

2,220 

2,060 

1,910 

1,910 

1,980

2,140 

2,820 

3,500 

3,300 

3,100

2,910 

2,910 

2,820 

2.730 

2,750

2,750 

2,730 

2,640 

2,640 

2,640 

2,820

Apr.

3, 

3, 

3, 

3, 

3,

3, 

3, 

3, 

3, 

3,

3, 

3, 

3, 

3, 

3,

4, 

4, 

4, 

3, 

4,

5, 

5, 

4, 

4, 

3,

3,

3, 

3, 

3> 

3j

Secondfoot-da ys

99,110 

65,800 

59,010

1,185,650

28,600 

30,675 

85,610 

113,750 

196,990 

196,390 

111,410 

87,800 

97,050

1,172,195

300 

820

710 

500 

500

600 

500 

500 

300 

100

100 

100 

600 

820 

820

140 

600 

720 

820 

600

350 

090 

600 

140 

820

600 

400 

200 

100 

300

May

3,500 

3,920 

4,370 

4,260 

4,030

4,140 

4,140 

4,260 

4,480 

5,090

6,020 

7,500 

8,980 

9,320 

8,640

7,980 

7,660 

7,040 

6,450 

6,300

6,740 

7,980 

7,340 

6,890 

6,600

6,890 

7,660 

7,980 

7,340 

6,890 

6,600

Maximum

3,600 

5,610 

3,300

8,600

1,200 

2,140 

4,840 

5,350 

9,320 

7,820 

7,980 

3,400 

3,500

9,320

June

6,600 

7,040 

6,740 

6,740 

7,040

6,450 

6,020 

5,610 

5.220 

5,090

5,610 

6,160 

6,600 

6,600 

6,890

6,740 

7,040 

7,190 

7,040 

7,040

7,500 

7,190 

6,740 

7,340 

7,040

6,300 

5,090 

5,610 

6,300 

7,820

July

7,98T 

7,820 

7,501 

6,301 

5, 480

4,723 

4,371 

4,200 

4,000 

3,500

4,000 

4,403i 

2,500 

1,900 

2,500

2,500 

2,550 

2,640 

2,640 

2,640

2,550 

2,550 

2,550 

2,550 

2,550

2,460 

2,460 

2,400 

2,400 

2, 40'J 

2,400

Aug.

2,400 

2,400 

2,400 

2,400 

2,400

2,400 

2,450 

2,450 

2,450 

2,500

2,550 

2,600 

2,700 

2,800 

2, 900

3,000 

3,000 

3,000 

3,000 

3, 000

3,000 

3, 000 

3,000 

3, 100 

3,200

3,200 

3,200 

3,200 

3,300 

3, 400 

3,400

Minimum Mean

1,000 3,197 

1,080 2,193 

750 1,904

600 3,248

800 923 

900 1,096 

1,670 2,762 

3,100 3,792 

3,500 6,355 

5,090 6,54S 

1,900 3,594 

2,400 2,832 

2,330 3,235

750 3,211

Sept.

3,400 

3,400 

3,500 

3,500 

3,500

3,500 

3,500 

3,500 

3,500 

3,500

3, 500 

3,400 

3,300 

3,300 

3,300

3,300 

3,300 

3,300 

3,200 

3,100.

3,100 

3,100 

3,000 

2,910 

3,000

3,100 

3,100 

3,100 

2,460 

2,380

Runoff in 

acre-feet

196,600 

130,500 

117,000

2,352,000

56,730 

60, 840 

169,800 

225,600 

390,700 

389,500 

221,000 

174,100 

192,500

2,325,000

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Oct. 1-16, Nov. 16, Dec. 13 to Jan. 16, Jan. 18, Jan. 26 tc Feb. 1, 

July 8-16, July 29 to Aug. 16; discharge computed on basis of weather records, records for station at 

Cle Elum, and recorded range in stage.
YAKIMA RIVER BASIN 

Yaklma River near Parker, Wash.

333

Location.--Water-stage recorder, lat. 46°29'40", long. 120°26'10", in sec. 28, T. 12 F. , 

ti. la E. , just downstream from Sunnyside diversion dam, li miles east of Parker, and 

3 miles downstream from Ahtanum Creek.

Drainage area. 3,560 square miles.

Kecoras available. April 1908 to September 1950 (October 1921 to September 1931, monthly 

aisenarge only, published in Water-Supply Paper 870).

Extremes. Maximum discharge during year, 13,000 second-feet May 13 (gage height, 9.12 

reet); minimum, 27 second-feet July 15 (gage height, 1.57 feet).

1908-21, 1931-50: Maximum discharge, 65,000 second-feet Dec. 23, 1933 (gage height, 

15.0 feet, from high-water marks); practically no flow for several days during latter 

part of irrigation season in most years as result of diversions.

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

tnose for period of ice effect, which are poor. Diversions above station for irrigation of large area. During the irrigation season when Sunnyside Canal is carrying 

water, as much as 18 second-feet, depending upon the stage of the canal, is released 

ahead of the fish screens and passes the river and canal gaging stations unmeasured. 

Flow partly regulated by diversions and by Keechelus, Kachess, Cle Elum, and Bumping 

Lakes, and Tieton Reservoir (see p. 335).

Cooperation. Records collected and prepared in cooperation with Bureau of Reclamation 

ana urrice of Indian Affairs.

Revisions (water years). W 982: 1942. W 1122: 1934.

Rating table, water year 1949-50, except periods of shifting control or Ice effect 

(gage height, In feet, and discharge, In second-feet)

2.4 240 3.5 1,050 5.0 3,08O 7.O 7,05O

2.7 400 4.0 1,610 5.5 3,95O 8.O 9,620

3.0. 610 4.5 2,300 6.0 4,90O 9.0 12,60O

Discharge, In second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2,150

2,220

2,080

2,010

2,150

2,150

2,220

2,150

2,150

1,050

1,170

2,080

2,300

2,300

1,540

533

1,400

3,160

3,340

3,500

4,420

4,600

4,510

4,600

4,220

4,130

3,950

3,950

4,700

4,320

4,320

Nov.

4,320

4,200

3,860

3,680

3,590

3,420

3,420

2,760

2,080

2,010

1,940

1,940

2,150

2,380

3,080

3,000

2,760

2,600

2,450

2,450

2,300

2,220

2,300

3,160

4,420

4,510

6,470

10,500

8,260

6,820

-

Dec.

5,720

5,300

5,100

4,800

4,420

4,130

*3,860

3,590

3,420

3,340

3,080

3,080

3,080

2,920

2,840

2,840

2,840

2,840

2,760

2,520

2,680

2,760

2,760

2,380

2,010

1,870

1,870

2,150

3,000

2,920

2,680

Month

October. .................

November .................

December. ................

Calendar year 1949 .....

January ..................

February. ................

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

April....................

May................ ......

June .....................

July. ....................

Augus t ...................

September ................

Water year 1949-50.....

Jan.

2,450

2,150

1,870

1,500

1,400

1,380

1,360

1,350

1,340

1,400

1,380

1,330

1,300

1,280

1,260

1,260

1,300

1,400

*1,600

1,800

1,850

1,900

2,100

1,800

1,500

1,450

1,400

1,350

1,300

1,300

1,300

Feb.

1,300

1,300

1,500

1,940

2,600

2,600

2,600

2,520

2,450

2,450

2,600

2,680

2,680

2,600

2,450

2,450

2,680

2,450

2,450

2,300

2,220

2,150

2,080

 2,45.0

3,680

4,900

4,800

4,320

_

-

Mar.

3,860

3,770

3,770

6,370

8,000

8,000

7,050

6,150

5,510

4,900

4,700

4,320

4,130

3,950

3,500

3,590

3,950

5,100

5,000

4,700

4,510

4,420

4,320

4,130

4,040

3,950

3,770

3,680

3,590

3,500

3,680

Apr.

4,320

5,510

5,300

4,900

4,600

4,700

4,700

4,510

4,420

3,950

3,770

3,860

4,420

4,800

4,800

5,100

5,720

5,930

5,510

5,100

6,590

6,590

5,510

4,600

3,860

3,160

2,520

2,150

2,010

1,940

-

May

2,080

2,220

2,760

2,680

2,300

2,220

2,220

2,380

2,680

3,420

4,700

7,050

10,800

12,600

11,400

10,200

9,340

8,520

7,050

6,150

6,370

8,260

8,520

7,520

7,050

7,280

8,520

9,620

9,060

8,260

8,000

June

8,000

8,260

8,520

8,520

9,340

8,780

7,760

6,820

6,150

5,720

6,150

7,050

8,000

8,260

9,060

9,060

10,500

11,400

11,400

11,400

12,300

11,700

10,200

9,620

9,060

8,OOO

6,590

6,590

7,760

9,620

-

July

10,800

10,500

9,620

8,780

8,260

8,000

7,280

6,590

5,5:0

4,510

3,770

4,320

4,s:.o

2,230

265

970

1,000

8151

9130

1,010

833

738

833

932

887

779

61-2

730

833

658

477

Aug.

582

650

674

754

770

746

860

674

561

505

498

334

526

626

634

1,010

1,050

1,030

730

762

842

582

575

722

860

626

400

340

370

477

449

Mean discharge In second- feet

Yaklma 

River

near

Parker

2,883

3,636

3,212

3,258

1,528

2,614

4,642

4,495

6,491

8,720

3,488

652

933

3,607

Roza 

Canal

at Mile

26.9

216

0

0

332

0

o

139

491

749

837

856

779

644

392

Union Gap 

Canal

(estimated)

12

0

0

18.2

0

0

0

15

40

35

35

40

40

18.2

New 

Reservation

Canal

371

0

0

868

0

0

154

829

2,069

1,765

1 919

1^726

1,378

856

Old 

Reservation

Canal

0

0

0

18.5

1.35

6.39

44.0

49.1

111

51.3

66.1

11.4

4.54

29.0

Sunnyside

Canal

494

0

0

645

0

0

218

947

1,244

1,309

1,301

1,262

1,092

659

Combined 

flow,

Yaklma

River and 

canals

3,976

3,636

3 ' 212

5,139

1.529

2,620

5,197

6,826

10,700

12,720

7,665

4,470

4.092

5,553

Sept.

714

923

369

869

950

941

950

923

1,040

1,110

1,120

1,040

1,040

990

1,000

1,030

1,030

1,040

960

833

770

730

690

561

610

714

833

1,270

1,390

1,050

"

Combined

flow of 

Yakima 

River and

(acre-feet)

244,500

213,400

197,50ii

3,721,000

94,010

145,500

319,600

406 , 200

657,900

756,900

471,300

274,800

243,500

4,028,000

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Jan. 5 to Feb. 3. Shifting-control method used 

Oct. 1-17. New Reservation, Old Reservation, and Sunnyside Canals divert from river above station 

and below Union Gap. Roza and Union Gap Canals head above Union Gap but records g'ven herein show 

flow in these canals that reaches the valley below Union Gap. Records for Roza and Sunnyside Canals 

furnished by Bureau of Reclamation. Records for Union Gap Canal estimated on basis of discharge 

measurements and records of flow at canal headwords. Combined flow represents flow of Yakima River 

that reaches valley below Union Gap,
334 YAKIMA RIVER BASIN

Yakima River at Klona, Wash.

Location.--Water-stage recorder, lat. 46°15 I 10", long. 119°28i50", in sec. 19, T. 9 N.» R.

27T7, at highway bridge at Kiona, 3j miles downstream from intake of Kiona Canal and

25 miles upstream from mouth. 

Drainage area.--5,520 square miles. 

Kecoras available.--August to December 1895 (gage heights only, fragmentary), August 1896

to March 1915, February 1933 to September 1950. 

Extremes.--Maximum discharge during year, 15,000 second-feet June 23; maximum gage height,

J-y.62 feet Jan. 18 (backwater from ice); minimum discharge recorded, 1,320 second-feet

Jan. 14 (gage height, 3.56 feet), but may have been less during period of ice effect or

no gage-height record.

1896-1915, 1933-50: Maximum discharge, 67,000 second-feet Dec. 23, 1933 (gage height,

21.57 feet, from high-water marks); minimum, 105 second-feet Sept. 11, 1906 (gage height,

2.35 feet). 

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

which are poor. Water diverted above gage for irrigation of large acreage. Plow partly

regulated by diversions and by Keechelus, Kachess, Cle Elum, and Bumping Lakes, and

Tieton Reservoir (see p.

Cooperation.--Records collected and prepared in cooperation with Bureau of Reclamation. 

Revisions;water years ). W 214: 1905. W1122: 1934 (M).

Rating table, water year 1949-50, except period of Ice effee 

(gage height, In feet, and discharge, in second-feet)

3.8 1,550 5.5 3,700 9.0 10,300 

4.0 1,750 6.0 4,500 1O.O 12,600 

4.5 2,300 7.0 6,250 11.0 15,000 

5.0 2,960 8.0 8,200

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

3,550 

3,700 

3,700 

3,620 

3,620

3,700 

3,780 

3,780 

3,780 

3,780

3,180 

3,320 

3,860 

3,860 

4,180

3,480 

2,480 

2,890 

4,500 

4,670

5,010 

5,530 

5,530 

5,530 

5,530

5,180 

5,180 

5,010 

5,010 

5,530 

5,350

Nov.

5,180 

5,350 

5,180 

4,84O 

4,500

4,500 

4., 340 

4,34O 

3,620 

3,180

2,960 

2,890 

2,890 

3,030 

3,250

3,860 

3,780 

3,550 

3,400 

3,250

3,250 

3,180 

3,100 

3,320 

4,020

5,180 

5,350 

7,240 

10,300 

9,240

Dec.

7,800 

*6,820 

6,250 

6,250 

5,710

5,350 

5,010 

4,670 

4,500 

4,340

4,180 

4,020 

3,860 

3,860 

3,860

3,700 

3,780 

3,620 

3,620 

3,550

3,320 

3,400 

3,550 

3,550 

3,250

2,890 

2,750 

2,620 

2,890 

3,780 

3,860

Jan.

3,620 

3,400 

2,960 

1,900 

1.8OO

1,750 

1,700 

1,700 

1,650 

1,700

1,900 

1,700 

1,600 

1,550 

1,550

1,550 

1,550 

1,550 

1,600 

2,000

2,200 

2,300 

2,500 

2,400 

1,900

1,600 

1,550 

1,550 

1,550 

1,550 

1,550

Feb.

1,550 

1,550 

1,600 

2,000 

3,500

3,600 

3,600 

3,500 

3,300 

3,400

3,500 

3,600 

3,700 

3,700 

3,500

3,300 

3,500 

3,600 

3,300 

3,200

3,100 

3,000 

2,900 

3,000 

4,500

6,000 

*7,400 

7,010

Honth

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194S

uary. .......................... ........

h.. .....................................

ter year 1949-50 .......................

Mar.

6,250 

5,890 

5,710 

5,890 

8,400

9,660 

9,660 

8,820 

8,000 

7,400

6,820 

6,440 

6,070 

5,710 

5,350

4,840 

4,840 

5,530 

7,200 

7,010

6,820 

6,630 

6,630 

6,440 

6,250

6,250 

6,070 

5,890 

5,890 

5,710 

5,350

Apr.

5,

6, 

7, 

7, 

7,

7, 

7, 

7, 

6, 

6,

6, 

6, 

6, 

6, 

7,

7, 

7, 

7, 

7, 

7,

6, 

8, 

8, 

7, 

6,

5, 

5, 

4, 

4, 

3,

Secondfoot-days

131,820 

132,070 

130,610

1,680,180

59,380 

99,410 

203,420 

198,910 

243,070 

342,890 

158, 100 

59,230 

63,530

1,822,440

890 

630 

600 

600 

400

200 

200 

010 

820 

820

250 

070 

070 

630 

010

010 

200 

800 

800 

200

820 

000 

200 

400 

440

530 

010 

500 

020 

780

Way

3,700 

3,700 

3,860 

4,180 

4,180

3,860 

3,780 

3,780 

3,860 

4,020

4,840 

5,890 

8,000 

10,500 

12,600

12 , 800 

11,900 

11,200 

10,300 

8,820

8,200 

8,400 

9,870 

10,300 

9,660

9,030 

9,240 

10,100 

11,200 

11,000 

10,300

Maximum

5,530 

10,300 

7,800

15,200

i 3,620 

7,400 

9,660 

8,200 

12,800 

14, 700 

11,900 

2,420 

2,680

14,700

June

10,100 

9,870 

10,300 

10,300 

10,500

11,200 

11,400 

10,500 

9,660 

9,030

8,820 

9,870 

10,500 

11,200 

11,600

12,100 

12,600 

13,300 

14,200 

14,500

14,200 

14, 700 

14,700 

13,700 

12,800

12,100 

11,000 

9,450 

9,030 

9,660

July

10,800 

11.9OO 

11,900 

ll.OOO 

10 , 100

9,870 

9,240 

8,610 

8,OOO 

6,820

5,890 

5,180 

5,710 

5,530 

3,240

2,070 

2,300 

2,360 

2,240 

2,240

2,240 

2,180 

2,070 

2,070 

2,120

2,120 

2,070 

2,020 

2,020 

2,120 

2,070

Aug.

1,960 

1,960 

1,960 

1,900 

2,020

2,070 

2,020 

2,020 

1,900 

1,850

1,750 

1,750 

2,070 

2,070 

1,750

1,750 

1,900 

2,420 

2,120 

1,850

1,800 

1,850 

1,800 

1,750 

1,900

2,020 

2,020 

1,800 

1,750 

1,700 

1,750

Minimum Mran

2,480 4,252 

2,890 4,402 

2,620 4,213

900 4,603

1,550 1,915 

1,550 3,550 

4,840 6,562 

3,780 6,630 

3,700 7,841 

8,820 11,430 

2,020 5,100 

1,700 1,911 

1,850 2,118

1,550 4,993

Sept.

1,850 

2,070 

2,180 

2,070 

1,960

1,960 

1,960 

1,960 

2,070 

2,180

2,180 

2,180 

2,180 

2,180 

2,120

2,070 

2,120 

2,120 

2,180 

2,120

2,070 

2,020 

2,020 

2,020 

1,960

2,070 

2,120 

2,240 

2,620 

2,680

Runoff In 

acre-feet

261,500 

262,000 

259,100

3,333,000

117,800 

197,200 

403,500 

394,500 

482,100 

680,100 

313,600 

117,500 

126,000

3,615,000

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Jan. 4-16. Ho ga 

26; discharge computed on basis of weather records and records for

;e-helght record Jan. 17 to Feb. 

station near Parker.
YAKIMA RIVER BASIN 335 

Reservoirs In Yakima River Basin, Wash.

Keechelas Lake.--Staff gage, lat. 47°19', long. 121°20', at dam on Yakima River in NEij 

sec. 12, T. 21 N., R. 11 E., at outlet of Keechelus Lake, 3j miles northwest of Martin 

and 9| miles northwest of Easton. Datum of gage Is at mean sea level (Bireau of Reclamation bench mark). Records available, January 1906 to September 1950. Maximum contents 

observed during year, 155,630 acre-feet June 29 (elevation. 2,516.16 fee*:); minimum 

observed, 64,460 acre-feet May 7, 8 (elevation, 2,472.35 feet). Maximum contents observed during period 1906-50, 160,570 acre-feet May 16, 1925 (elevation, 2,518.09 feet); 

minimum observed, 448 acre-feet Sept. 6, 12, 13, 1906 (original crib dam); minimum elevation observed, 2,428.30 feet Sept. 20, 1926.

Reservoir Is formed on natural lake by earth- and gravel-fill dam completed In 1917; 

storage began above crib dam Jan. 12, 1906, above present dam Aug. 19, 1914. To aid in 

construction and clearing of reservoir site, the water surface was kept low and present 

reservoir was not filled until June 15, 1920. Capacity, 153,000 acre-feet between gate 

sill (elevation, 2,425.00 feet), and spillway crest (elevation, 2,515.00 feet). Records 

given herein represent usable contents. Water used for irrigation. Gage read twice 

daily.

Kachess Lake.--Staff gage, lat. 47°16', long. 121°12 I , at dam on Kachess River in SW£ sec. 

34, T. 21 N., R. 13 E., at outlet of Kachess Lake and 2j miles northwest of Easton. 

Datum of gage is at mean sea level (Bureau of Reclamation bench mark). Records available, September 1905 to September 1950. Maximum contents observed during year, 240,890 

acre-feet July 1, 2 (elevation, 2,262.42 feet); minimum observed, 97,820 acre-feet Oct. 

3 (elevation, 2,226.97 feet). Maximum contents observed during period 1905-50, 241,300 

acre-feet July 11, 1943 (elevation, 2.262.51 feet); minimum observed, 525 acre-feet 

Sept. 14, 15, 1910 (original crib dam); minimum elevation observed, 2,197.73 feet Sept. 

26, 27, 1915.

Reservoir Is formed on natural lake by. earth- and gravel-fill dam completed in 1912. 

Original crib dam creating capacity of 21,000 acre-feet used Sept. 20, 1905, to June 30, 

1911. Storage above present dam began June 30, 1911. Capacity, 239,000 acre-feet between gate sill (elevation, 2,192.75 feet) and top of spillway gate (elevation, 2,262.00 

feet). Records given herein represent usable contents. Water used for Irrigation. 

Gage read twice daily.

Cle Elum Lake. Staff gage, lat. 47°15', long. 121°04', at dam on Cle Elum River, in NEj 

sec . 10, T. 20 N. , R. 14 E., at outlet of Cle Elum Lake and 4 miles northwest of Roslyn. 

Datum of gage is at mean sea level (Bureau of Reclamation bench mark). Records available, May 1906 to September 1950. Maximum contents observed during year, 442,110 acrefeet June 23 (elevation, 2,241.07 feet); minimum observed, 42,840 acre-feet Nov. 7 (elevation, 2,130.87 feet). Maximum contents observed during period 1906-50, 443,700 acrefeet May 31, 1945, May 28, 1949 (elevation, 2,241.40 feet); minimum observed, 2,380 

acre-feet Aug. 31, 1906; minimum elevation observed, 2,114.35 feet Oct. 14, 1932. Storage was uncontrolled Oct. 3, 1931, to Feb. 26, 1932.

Reservoir is formed on natural lake by earth- and gravel-fill dam completed in 1933; 

storage began above present dam Feb. 26, 1932. Capacity, 436,000 acre-feet between gate 

sill (elevation, 2,110.00 feet) and top of spillway gate (elevation, 2,240.00 feet). 

Records given herein represent usable contents. Water used for Irrigation. Gage read 

twice daily.

Revision. All month-end elevation shown for Cle Elum Lake for period Aug. 31, 1948, 

to sept, so, 1949, have been published as 100 feet too high in Water-Supply Papers 1122 

and 1152.

Bumping Lake.--Staff gage, lat. 46°52', long. 121° 18', at dam on Bumping River in SWij sec. 

as Iunsurveyed), T. 16 N., R. 12 E., at outlet of Bumping Lake, llj miles upstream from 

American River and 19 miles west of Nile. Datum of gage is at mean sea level (Bureau 

of Reclamation benchmark). Records available, June to July 1906, April 1909 to September 1950. Maximum contents observed during year, 36,570 acre-feet June 21 (elevation, 

3,428.16 feet); minimum observed, 2,630 acre-feet Oct. 3 (elevation, 3,393.14 feet). 

Maximum contents observed during period 1906, 1909-50, 39,840 acre-feet June 21, 22, 

1925 (elevation, 3,430.55 feet); minimum observed, 1,130 acre-feet Feb. 5-9, 1949 (elevation, 3,390.80 feet).

Reservoir Is formed on natural lake by earth-fill dam completed in 1910; storage 

began Nov. 3, 1910. Capacity, 33,800 acre-feet between gate sill (elevation, 3,389.00 

feet) and spillway crest (elevation, 3,426.00 feet). Records given herein represent 

usable contents. Water used for Irrigation. Gage read twice daily.

Tieton Reservoir.--Staff gage, lat. 46°39', long. 121°07', in SW£ sec. 31 (unsurveyed), T. 

14 N., R. 14 E., on face of dam on Tieton River, at spillway, at Rimrock, 2,000 feet upstream from Wild Cat Creek, 7-J miles upstream from headworks of Tieton Canal, and 22-j 

miles southwest of Naches. Datum of gage is at mean sea level (Bureau of Reclamation 

bench mark). Records available, April 1925 to September 1950. Maximum contents observed during year, 199,670 acre-feet July 6, 7 (elevation, 2,926.66 feet); minimum observed, 91,260 acre-feet May 10 (elevation, 2,874.50 feet). Maximum contents observed 

during period 1925-50, 201,380 acre-feet June 21, 1937 (elevation, 2,927.33 feet); minimum observed, 89 acre-feet Oct. 12, 1926 (elevation, 2,766.77 feet).

Reservoir Is formed by earth- and gravel-fill dam completed in 1925; storage began 

Apr. 27, 1925. Capacity, 197,000 acre-feet between sill of tunnel entrarce (elevation, 

2,766.00 feet) and crest of spillway gates (elevation, 2,926.00 feet). Records given 

herein represent usable contents. Water used for irrigation. Gage read twice daily.

Cooperation.--Records furnished by Bureau of Reclamation, reviewed and prepared for publication by Geological Survey.
YAKIMA RIVER BASIN

Monthly elevation and contents of reservoirs in Yakima River Basin, WEsh., 

water year October 1949 to September 1950

Date 

Date

Calendar year 1949...

Water year 194,9-50...

Date

Dec. 31... .............

Calendar year 1949...

Water year 1949-50...

Date

Dec. 31. ...............

Calendar year 1949...

Water year 1949-50...

Keechelus Lake

Elevation 

(feet)t

2,504.35 

2,498.03 

2,497.99 

2,485.34

-

2,483.34 

2,480.03 

2,476.45 

2,472.43 

2,485.31 

2,516.07 

2,509.45 

2,502.41 

2,484.38

-

Contents 

(acrefeet)

126,920 

112,780 

112,690 

87,070

-

83,350 

77,390 

71,220 

64,590 

87,010 

155,400 

138,960 

122,480 

85,270

-

Change in 

contents 

during month 

(acre-feet)

-14,140 

-90 

-25,620

+30,720

-3,720 

-5,960 

-6,170 

-6,630 

+22,420 

+68,390 

-16,440 

-16,480 

-37,210

-41,650

Cle Elum Lake

2,169.21 

2,136.80 

2,162.20 

2,178.89

-

2,186.25 

2,190.88 

2,201.21 

2,213.22 

2,220.01 

2,240.75 

2,236.75 

2,219.32 

2,191.28

-

149,990 

56,220 

127,360 

183,080

-

209,610 

226,850 

267,000 

316,280 

345,360 

440,560 

421,420 

342,360 

228,360

-

-93,770 

+ 71,140 

+55,720

-19,570

+26,530 

+17,240 

+40,150 

+49,280 

+29,080 

+95,200 

-19,140 

-79,060 

-114,000

+78,370

Tieton Reservoir

2,884.47 

2,881.19 

2,893.02 

2,899.89

-

2,895.85 

2,891.44 

2,885.20 

2,877.70 

2,892.94 

2,922.78 

2,919.84 

2,899.21 

2,886.35

-

108,700 

102,790 

124,880 

138,670

-

130,470 

121,800 

110,030 

96,680 

124,720 

189,980 

182,850 

137,270 

112,160

-

-5,910 

+22,090 

+13,790

+48,700

-8,200 

-8,670 

-11,770 

-13,350 

+28,040 

+65,260 

-7,130 

-45,580 

-25,110

+ 3,460

Kachess Lake

Elevation 

(feet)t

2,227.12 

2,228.78 

2,237.26 

2,243.10

-

2,246.40 

2,248.72 

2,250.27 

2,247.16 

2,254.88 

2,262.23 

2,259.54 

2,245.96 

2,235.82

-

Contents 

(acrefeet)

98,350 

104,200 

135,240 

157,940

-

171,330 

180,970 

187,510 

174,470 

207,320 

240,020 

227,900 

169,520 

129,820

-

Change in 

contents 

during month 

(acre-feet)

+5,850 

+31.04C 

+22,700

-16,860

+13,390 

+9,640 

+6,540 

-13,040 

+32,850 

+32,700 

-12,120 

-58,380 

-39,700

+31,470

Bumping Lake

3,393.15 

3,395.35

3,409.20 

3,409.42

-

3,408.59 

3,410.98 

3,405.54 

3,402.91 

3,415.22 

3,427.87 

3,427.04 

3,407.02 

3,396.05

-

2,640 

4,090 

14,850 

15,060

-

14,290 

16,540 

11,630 

9,500 

20,900 

36,180 

35,080 

12,890 

4,550

-

+ 1,450 

+ 10,760 

+210

+9,620

-770 

+2,250 

-4,910 

-2,130 

+11,400 

+15,280 

-1,100 

-22,190 

-8,340

+1,910

t Elevation is mean for day.
YAKIMA RIVER BASIN 337

Kachess River near Easton, Wash.

Location.--Water-stage recorder, lat. 47°15'30", long. 1C1°11'50", in sec. 3, T. 20 N., R.

13 E., three-quarters of a mile downstream from Kachess Lake and 2 miles northwest of

Easton.

Drainage area. 64 square miles.

Records available.--October 1903 to September 1950.

Average discharge. 47 years, 283 second-feet (adjusted for storage since October 1905). 

Extremes. Maximum discharge during year, 1,280 second-feet June 22 (gage height, 5.33

i'eetJ; minimum observed, 1.6 second-feet Feb. 12 (gage height, 0.05 foot Feb. 1C). 

1903-50: Maximum discharge, 2,530 second-feet May 28, 1948; no -flow when gates in

dam are closed. 

Remarks. Records excellent except those below 50 second-feet, which are fair. No diversion. Flow regulated by Kachess Lake (see p. 335). 

Cooperation.--Records collected and prepared in cooperation with Bureau of Reclamation,

Revisions (water years ).-

Rating 

Discharge, 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

_!^J

Oct.

110 

110 

110 

110 

110

110 

110

111

112 

113

113 

113 

fl!4 

f!14 

114

114 

115 

118 

119 

119

118 

115 

114 

115 

114

113 

113 

114 

114 

113 

113

Nov.

62 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.5 

2.7

2.5 

2.5 

2.4 

2.4 

2.4

2.5 

2.4 

2.5 

2.8

3.5

3.5 

3.5 

5.2 

8.4

6.7

Month

Ooto 

Move 

Dece

Cal

Janu 

Febr 

Hare 

Apri

UAV

June 

July 

Augu 

Sept

Wat

endar year 1949

h. ..............

at ..............

ember. ..........

er year 1949-50

Dec.

6.2 

7.3 

5.7 

5.2 

4.2

4.2 

3.5 

3.5 

3.5 

3.4

3.2

3.2 

3.0 

2.8 

3.2

2.8 

2.8 

2.8 

2.5 

2.5

2.8 

3.5 

3.5 

3.2 

3.2

3.2 

5.2 

14 

10 

7.3 

5.7

-W 369: 1904, 1907-8.

table, water year 1949-50 (gage height, In feet, 

and discharge, in second-feet)

3.0 1.4 1.3 56 3.1 355 

.2 2.5 1.6 82 3.5 495 

.4 6.7 1.9 114 4.0 690 

.6 13 2.2 153 4.5 900 

.8 22 2.5 205 5.0 1,120 

1.0 34 2.8 270 5.3 1,260

n second-feet, water year October 1949 to September 1950

Jan.

5 

4

3

3 

3

3 

3 

3 

3 

3

3

3 

3

3 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2 

2

0 

2 

5 

4 

4

2 

2 

2

2

2 

2 

2 

2 

8

7 

4 

4 

4 

4

4 

7 

7 

5 

5

5 

5 

4 

4 

4 

4

Feb.

2 

2 

2 

2 

2

1 

1 

1

1 

1

1 

1 

1 

1 

1

2 

2 

2 

2 

2

2

2 

2

2

2 

2 

2

4 

4 

3 

2 

0

8 

8 

8

7 

7

7 

7 

8 

8

9

0 

0 

0 

0 

0

0 

0 

0

1

3 

4

3

Mar.

2.4 

2.4 

2.5 

4.0 

6.0

6.7 

5.2 

4.4 

3.5 

3.2

3.2 

2.8

69 

126 

171

268 

307

316 

319

322

322 

322 

322 

349 

432

432 

432 

495 

550 

550 

550

Observed

Discharge in 

second-feet

Maximum

119 

62 

14

1,200

5.0 

2.4 

550 

550 

770 

1,260 

990 

1,120 

1,120

1,260

Minimum

110 

2.4 

2.5

2.4

2.4 

1.7 

2.4 

512 

103 

110 

14.5 

790 

211

1.7

Mean

113 

4.97 

4.42

396

2.93 

2.01 

216 

530 

248 

584 

682 

1,046 

704

346

Runoff 

in 

acre-feet

6,370

296 

272

285,800

180 

112 

13,290 

31,510 

15,250 

34,770 

41,960 

64,290 

41,890

250,800

Apr.

550 

550 

550 

530 

530

530 

530 

530 

530

530

530 

530 

530 

530 

530

530 

530 

530 

530 

530

530 

530 

530 

530 

530

530 

512 

512 

512

512

May

512 

257 

104 

104 

104

104

103 

104 

107 

110

110

111

112 

112 

112

111 

111 

108 

108 

108

108 

108 

108 

107 

308

530 

690 

730 

750 

770 

770

June

790 

835 

765 

650 

473

346 

345 

177 

110 

169

169 

169 

169 

167 

167

171 

172 

244 

446 

915

1,210

1,240 

1,260 

1,260 

1,190

1,060 

752 

610 

710 

790

July

880 

990 

990 

940 

940

920 

920 

900 

900 

761

846 

990 

219 

14.5 

152

235 

408 

495 

478 

478

478 

550 

590 

570 

570

716 

880 

860 

835 

790 

860

Aug.

880 

940 

965 

955 

990

990 

390 

990 

990 

965

990 

990 

990 

790 

1,110

1,080 

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

Sept.

1,120 

1,120 

1,120 

1,120 

1,120

1,120 

1,080 

1,110 

990 

990

907 

790 

770 

730 

690

630 

670 

670

590 

495

495 

394 

331 

331

331

334 

331 

258

211 

211

Adjusted for change In contents

Change In 

contents In 

Kachess Lake 

(acre-feet)

+5,850 

+31,040 

+22,700

-16,860

+13,390 

+9 , 640 

+6,540 

-13,040 

+32,850 

+32,700 

-12,120 

-58,380 

-39,700

+31,470

Runoff 

in 

acre-feet

12,820 

31,340 

22,970

269,900

13,570 

9,750 

19,830 

18,470 

48,100 

67,470 

29,840 

5,910 

2,190

282,300

Discharge in 

second-feet

Per 

Mean square 

mile

208 3.25 

527 8.23 

374 5.84

373 5.83

221 3.45 

176 2.75 

323 5.05 

310 4.84 

782 12.2 

1,134 17.7 

485 7.58 

96.1 1.50 

36.8 .575

390 6.09

Runoff

inches

3.76 

9.18 

6.73

79.08

3.98 

2.86 

5.81 

5.41 

14.09 

19.77 

8.74 

1.73 

.64

82.70

f Computed on basis of partly estimated gage-height record. 

Note. Nov. 1 to Mar. 13 computed from staff-gage readings.
338 YAKIMA RIVER BASIN

Cle Elum River near Roslyn, Wash.

Location. --Water-stage recorder, lat. 47 0 14'00" ) long. 121°03'30", in SWij sec. 11, T. 20

N . , H . 14 E., 1,000 feet downstream from dam at Cle Elum Lake and 4 miles northwest of

Roslyn.

Drainage area.--202 square miles. 

Records available. October 1903 to September 1950.

Average discharge. 47 years, 901 second-feet (adjusted for storage aince January 1906). 

Extremes . --Maximum discharge during year, 4,290 second-feet June 23, July 1, 2; maximum 

 gage" height, 9.81 feet June 23; no flow Nov. 15 to Dec. 26, Dec. 30 to Jan, 9, Apr. 5-

30.

1903-50: Maximum discharge, 18,700 second-feet Nov

feet); no flow at times when gates in dam are closed. 

Remarks . Records excellent. No diversion above station.

(see p. 335) . Cooperation. Records collected and prepared in cooperation with Bureau of Reclamation. 

KevisionsTwater years). --W 362: Drainage area. W 369: 1906-8.

15, 1906 (gage height, 14.05 

Flow regulated by Cle Elum Lake

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, in aecond-feet)

3.7 0 4.7 170 6.5 1,050 

3.9 9 5.0 270 7.0 1,400 

4.1 32 5.3 390 8.0 2,240 

4.3 67 5.6 530 9.0 3,260 

4.5 114 6.0 740 9.8 4,29O

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2,930 

2,820 

2,820 

2,720 

2,720

2,620 

2,620 

2,520

1,080 

1,680

2,470 

2,420 

2,380 

1,360 

170

1,190 

2,330 

2,280 

2,240 

2,200

2,150 

2,060 

2,020 

1,970 

1,920

1,880 

1,800 

1,800 

1,800 

1,800 

1,800

Nov.

,760 

,720 

,680 

,640 

,560

1,520 

591 

9 

9 

8

4 

2 

I 

1

0

0 

0 

0 

0

0

0 

0

0 

0 

0

0

0 

0 

0 

0

Month

Octc 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wat

endar year 1949

St. .............

er year 1949-50

Dec.

0 

0 

0 

0 

0

0 

0 

0 

0

0

o

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

1

4

1 

0 

0

Jan.

0 

0

0 

0 

0

0 

0 

0 

0 

18

26 

23 

26 

26

26

26 

26 

26 

26 

26

26 

26 

25 

25 

25

25 

25 

26 

26 

26 

26

Feb.

26 

26 

26 

26 

26

25 

25 

25 

25 

25

25 

25 

26 

26 

26

26 

26 

26 

26 

26

27 

27 

27 

27 

27

27 

27 

29

Observed

Discharge in 

second-feet

Maximum

2,930 

1,760 

4

4,040

26 

29 

32 

32 

2,720 

4,150 

4,290 

2,240 

2,280

4,290

Mini- Mean 

mum

170 2,083 

0 350 

0 .2

0 1,177

0 17.9 

25 26.1 

29 31.3 

0 3.6; 

190 2,030 

2,020 2,525 

801 2,427 

1,800 1,970 

1,400 2,160

0 1,144

Mar.

29 

29 

29 

29 

30

30 

30 

30 

30 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32 

32

Runoff 

in 

acre-feet

128, 10C 

20,84C 

IE

851,80C

1,1 1C 

1,45C 

1.92C 

216 

124, 80C 

150, 30C 

149, 30C 

121,200 

128, BOC

828, OOC

Apr.

32 

32 

32

13

0

0 

0 

0 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

May

190 

973 

1,400 

1,400

1,560

1,760 

1,760 

1,720 

1,720 

1,720

1,760 

1,760 

1,800 

1,800 

1,840

1,840 

1,880 

2,020 

2,380 

2,620

2,620 

2,620 

2,620 

2,620 

2,620

2,620 

2,620 

2,620 

2,620 

2,720 

2,720

contents In 

Cle Elum Lake 

(acre -feet)

-93,770 

+71,140 

+55,720

-19,570

+26,530 

+17,240 

+40,150 

+49,280 

+29,080 

+95,200 

-19,140 

-79,060 

-114,000

+78,370

June

2,720 

2,380 

2,100 

2,020 

2,060

2,060 

2,060 

2,060 

2,100 

2,060

2,100 

2,100 

2,100 

2,150 

2,150

2,150 

2,200 

2,240 

2,240 

2,280

2,240 

2,330 

3,150 

3,750 

3,750

2,860 

3,060 

3,380 

3,760 

4,150

July

4,290 

4,290 

4,150 

4,010 

3,750

3,620 

3,620 

3,330 

2,6SO 

2,470

2,970 

3,260 

1.2EO 

8C1

1,810

1,840 

1,840 

1,8CO 

1,8CO 

1,8CO

1,8CO 

1,8CO 

1,8CO 

1.8CO 

1,8CO

1,8CO 

1,8CO 

1,800 

1,8CO 

1.8CO 

1,800

Aug.

1,800 

1,800 

1,840 

1,840 

1,800

1,840 

1,300 

1,800 

1,800 

1,840

1,S40 

1,970 

2,020 

2,020 

1,970

1,970 

1,970 

1,970 

1,970 

1,970

1,970 

1,970

1,970 

2,100 

2,150

2,150 

2,150 

2,150 

2.200 

2,200 

2,240

Adjusted for chan

Runoff 

in 

acre-feet

34,330

91,980 

55,730

832,200

27,640 

18,690 

42,070 

49,500 

153,900 

245,500 

130,200 

42,140 

14,800

906,400

Sept.

2,200 

2,240 

2,200 

2,240 

2,240

2,200 

2,240 

2,240 

2,240 

2,240

2,240 

2,240 

2,240 

2,280 

2,240

2,240 

2,240 

2,240 

2,240 

2,240

2,240 

2,240 

2,240 

2,240 

2,240

2,240 

2,240 

1,760 

1,400 

1,400

ge in contents

Discharge in 

second-feet

M.-in

558 

1,546 

906

1,149

450 

337 

684 

832 

2,503 

4,126 

2,118 

685 

249

1,252

Per 

square 

mile

2.7£ 

7.65 

4.4£

5.6£

2.23

1.67 

3.3E 

4.12 

12. 3£ 

20.43 

10. 4£ 

3.3£ 

1.23

6.2C

Runoff

inches

3.19 

8.54 

5.17

77.24

2.57 

1.73 

3.91 

4.59 

14.29 

22.79 

12.09 

3.91 

1.37

84.15
ZAKIMA RIVER BASIN 339

Teanaway River near Cle Elum, Wash.

Location.--Water-stage recorder, lat. 47°12', long. 120°47', in S¥ij sec. 25, T. 20 N., R. 

16 "KT, 4 miles upstream from mouth and 8 miles east of Cle Elum. Prior to Oct. 21, at 

site 100 feet downstream at different datum.

Drainage area.--200 square miles.

is available.--Oct 

miles downstream.

Records available.--October 1946 to September 1950. April 1909 to September 1914, at site 

'i miles downstream.

Extremes.--Maximum discharge during year, 3,820 second-feet May 13 (gage height, 5.75

 feet); minimum, 5.2 second-feet Aug. 23, 24, 25 (gage height, 0.78 foot).

1909-14, 1946-50: Maximum discharge, 4,170 second-feet May 28, 1948 (gage height, 

35.57 feet, from high-water mark, site and datum then in use); minimum observed,1 secondfoot Aug. 6, 1914 (^age height, 2.17 feet, site and datum then in use).

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

those for periods of ice effect or no gage-height record, which are poor. Small diversions in Teanaway Valley for irrigation. No regulation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

a25 

a25 

a 20 

a25 

a30

a35 

a45 

a60 

a75 

a85

a 90 

alOO 

alOO 

a 80 

a70

a 60 

a55 

a50 

a50 

a50

47 

47 

46 

46 

44

43 

42 

274 

229 

150 

122

Nov.

103 

92 

83 

78 

74

68 

63 

62 

62 

62

70 

99

214 

5?5 

' 428

282 

217 

178 

160 

148

135 

128 

162 

458 

550

586 

2,400 

1,510 

940 

675

Dec.

560 

680 

605 

500 

444

380 

332 

296 

282 

247

226 

226 

*205 

193 

187

178 

175 

168 

146

141

160 

158 

162 

155

143

150 

196 

525 

488 

384 

324

Jan.

276 

223 

205 

193 

178

b!65 

b!50

b!45 

b!40 

b!45

b!60 

*155 

130

113 

b!05

b95 

b90 

b90 

b90 

b90

b95 

blOO 

bllO 

blOO 

b90

b85 

b80 

b80 

b80 

b80 

bSO

Month

Octc 

Nove

Dece

Ca

Jan i, 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augt 

Sept

Wa

mber . . 

lendar y ear 1949 ...... .

1

ember ................ ....

ter year 1949-50 ..... ....

Feb.

b80 

b80 

b80 

b80 

b80

b80

beo 

beo

b80

beo 

beo

bB5 

b85 

b90 

b90

b9O 

b95 

b95 

*blOO 

b!05

b!05 

bllO

126 

164 

262

312 

304 

272

Secondfoot-days

2,220 : 

10,612 

9,016

169,484

3,916 

3,390 

13,993 

28,359 

50,460 

36,391 

8,526 

1,091.2 

459.4

168,435.6

Mar.

250

244 

346 

*910 

1,030

650 

675 

575 

460 

426

372 

340 

306 

262 

279

312 

515 

645 

570 

466

444 

440 

400 

376

366

356 

348 

332 

308 

332 

368

Maximum

274 

2,400 

660

3,040

276 

312 

1,030 

1,760 

3,270 

1,760 

706 

86 

22

3,270

Apr.

620 

748 

675 

650 

665

718 

685

695 

645 

600

650 

724 

970 

1,060 

1,060

1,270 

1,440 

1,560 

1,560 

1,520

1,760 

1,410 

1,130 

940 

650

760 

718 

670 

706 

680

May

1,000 

1,060

1,000

910 

820

790 

650 

1,030 

1,380 

1,760

2,350 

3,160 

3,270 

2,750 

2,400

2,300 

2,070 

1,640 

1,300 

1,340

1,840 

2,070 

1,680 

1,410 

1,410

1,560 

1,800 

1,560 

1,360 

1,300 

1,270

Minimum

20 

62

141

17.5

80 

60 

244 

600 

790 

575 

86 

6.0 

9.6

6.0

June

1,440 

1,640 

1,600 

1,760 

1,760

1,720 

1,060 

970 

940 

1,030

1,240 

1,460 

1,520 

1,480 

1,410

1,440 

1,480 

1,480 

1,380 

1,380

1,410 

1,160 

680 

706 

630

590 

575 

650 

790 

790

Mean

71.6 

354 

291

464

126 

121 

451 

945 

1,628 

1,213 

275 

35.2 

15.3

461

July

706 

625 

555 

535 

520

460 

436 

384 

352 

324

286 

262 

250 

236 

229

214 

199 

196 

196 

175

16S 

160 

141 

132 

12e

122 

115 

113 

105 

92

ee

Per 

square 

mile

0.358 

1.77 

1.46

2.32

.630 

.605 

2.26 

4.72 

8.14 

6.06 

1.38 

.176 

.076

2.30

Aug.

86 

77 

64 

56 

51

51 

51 

43 

42 

46

63 

60 

60 

57 

46

29 

23 

19 

17.5 

17.5

14.5 

12 

6.4 

6.0 

7.6

13.5 

13.5 

14.5 

13.5 

13 

13.5

Sept.

13 

16 

17.5 

17.5 

20

19 

18.5 

19 

19 

20

19 

18.5 

15 

13.5 

13.5

12 

12 

12 

11 

10

9.6 

9.6 

9.6 

9.6 

11.5

15 

17 

18.5 

21 

22

Runoff

Inches

0.41 

1.97 

1.68

31.51

.73 

.63 

2.60 

5.27 

9.38 

6.77 

1.59 

.20 

.09

31.32

Peak discharge (base, 2,9OO sec. -ft. ) . Nov. 27 (8 a.m.) 2,950 sec. -ft.; May 13 (2 a.m.

Ac re- feet

4,400 

21,050 

17,880

336,200

7,770 

6,720 

27,750 

56,250 

100,100 

72,180 

16,910 

2,160 

911

334,100

) 3,820

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records of nearby

streams. ireams.

b Stage-discharge relation affected by ice
340 YAKIMA RIVER BASIN

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

Location.--Water-stage recorder, lat. 46°44'40", long. 120°46'00", in SW^-NE^ sec. 36, T. 

lb H., R. 16 E., half a mile downstream from Wapatox power canal, three-quarters of a 

mile downstream from Tieton River, and 3j miles northwest of Naches. Datum of gage is 

1,550 feet above mean sea level.

Drainage area.--943 square miles.

Keeords available.--August to October 1905, November 1908 to October 1912, and May 1915 to 

September 1950 in reports of Geological Survey. September 1905, Octoter 1908 to September 1912 (mean monthly discharge) in State Water-Supply Bulletin 5.

Average discharge.--38 years (1908-12, 1916-50), 1,649 second-feet (adjusted for diversions 

by Seian Valley and Tieton Canals since 1909, city of Yakima at Oak Plat since 1935, and 

by Wapatox Canal since 1936; and for change in contents in Bumping Lal-'e since November 

1910, and in Tieton Reservoir since October 1924).

Extremes.--Maximum discharge during year, 7,530 second-feet June 21 (gage height, 15.79 

feet) ; minimum, 40 second-feet Nov. 8, 9 (gage height, 9.88 feet).

1905, 1908-12, 1915-50: Maximum discharge, 32,200 second-feet Dec. 22, 23, 1933 

(gage height, 14.33 feet, site and datum then in use); minimum, 1 second-foot Nov. 7, 

1942, and many days during winter of 1943-44, result of regulation anc1 diversion.

Remarks.--Records good except those for periods of ice effect, which are poor. Plow regulated by Bumping Lake and Tieton Reservoir (see p. 335), by diversion for municipal 

supply of city of Yakima, and by diversion of Selah Valley, Tieton, and Wapatox Canals. 

Small unmeasured diversions for irrigation above station.

Cooperation.--Records collected and prepared in cooperation with Bureau cf Reclamation.

Revisions.--W 832: Drainage area.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

174

170

144

152

156

159

165

159

154

170

174

174

174

174

172

170

167

163

172

135

107

105

103

103

loo

100

90

161

456

288

227

Month

t

October. . . .

November . . .

December . . .

Calendar 

year 194£

January ....

February . . . 

March. .....

April ......

May........

June .......

July

August .....

September . .

Water year 

1949-50..

Nov.

192

1

1

1

2

4

31

03

69

60

56

54

44

58

60

76

50

46

20

582

456

3

3

4

78

24

56

402

306

2

4

1,3

1,5

1,4

4,2

3,5

2,2

1,7

-

38

80

40

40

80

60

40

60

80

Dec.

1,

1,

1,

*

380

320

140

992

883

716

636

564

690

546

450

540

498

444

426

426

420

390

336

330

576

516

462

456

408

408

414

510

576

618

612

Jan.

550

5OO

450

450

450

450

450

480

500

520

520

*516

500

450

430

430

430

440

440

5OO

600

800

1,040

960

850

700

650

600

600

600

600

Feb.

600

600

600

600

600

600

6OO

600

672

672

684

678

630

606

630

660

672

654

648

630

*630

624

642

890

1,060

1,230

1,250

1,170

-

-

-

Observed

Discharge 

second f

laxi 

mum

456

4,260

1,380

8,820

1,040

1,250 

2,120

3,180

7,050

7,290

5,720

1,910

.576

7,290

Minimum

90

44

330

44

430

600 

1,070

1,600

1,780

3,820

1,840

624

113

44

in

set

Mean

165

718

603

1,415

563

719 

1,514

2,120

4,030

5,284

3,194

1,320

269

1,712

Runoff

in 

acre feet

10,150

42,730

37,060

1,024,000

34,620

39,930 

93,100

126,100

247,800

314,400

196,400

81,170-

15,980

1,239,000

Mar . | Apr .

1,110

1,070

1,140

1,840

2,12O

2,050

1,980

1,780

1,660

1,540

1,540

1,430

1,390

1,320

1,250

1,230

1,430

1,720

1,660

1,600

1,720

1,600

1,540

1,480

1,480

1,430

1,350

1,320

1,380

1,350

1,430

1,910

2,120

1,910

1,780

1,780

1,910

1,910

1,840

1,720

1,6OO

1,600

1,720

2,050

2,050

2,050

2,260

2,420

2,420

2,500

2,740

3,180

3.0OO

2,66O

2,420

2,340

2,190

 1,980

1,840

1,780

1,910

-

Change In 

contents

In Bumping 

Lake and

Tieton 

Reservoir 

acre-feet)

-4,460

+32,850

+14,000

+58,320

-8,970

-6,420 

-16,680

-15,480

+39,440

+80,540

-8,230

-67,770

-33,450

+5.370

May

1,910

1,980

1,980

1,910

1,780

1,780

1,940

2,340

2,660

3,O9O

3,730

5,300

6,820

7,050

6,150

5,720

5,300

4,600

3,920

3,540

3,920

4,700

4,500

4,300

4,200

4,500

5,100

5,300

5,100

4,900

4,900

Diversions 

by Tieton

Selah Valley 

and Wapatox 

Canals and

city of 

Yakima t 

(acre-feet)

34,410

34,320

28,170

486 '300

23,980

21,280 

31,900

35,090

46,640

53,240

60,580

61,510

56,360

487,500

June

5,100

5,300

5,300

5,930

6,150

5,720

5,100

4,4OO

4,110

4,200

4,500

4,700

4,900

5,100

4,900

5,300

6,590

6,820

6,590

7,050

7,290

6,590

5,510

4,800

4,300

3,920

3,820

4,110

4,900

5,510

-

July

5,730

5,300

4,900

4,900

5,100

5,300

5,100

4 , 600

3,730

3,730

3,510

3,920

3,490

2,230

2,500

2,530

2,3*0

2,340

2,310

2,310

2,190

2,190

2,190

2,230

2,190

2,120

2,120

2 , 050

1,930

1,8 tO

1,810

Aug.

1,840

1,840

1,910

1,910

1,910

1,910

1,780

1,660

1,660

1,660

1,600

1,600

1,600

1,600

1,480

1,280

1,130

1,090

1,040

1,040

1,010

960

l.OOO

984

932

897

814

762

729

672

624

Sept.

576

534

450

444

402

378

342

348

396

408

306

270

300

294

276

250

234

221

218

177

135

129

1?5

123

125

119

117

113

113

133

-

Adjusted for change In reservoir 

contents and diversions

Runoff

in 

acre feet

40,100

109,900

73,230

1,569,000

49,630

54,790 

108,300

145,700

333,900

448,200

248,800

74,910

38,890

1,732,000

Discharge in 

second-feet

Per 

Mean square 

mile

652 0.691

1,847 1.96

1,289 1.37

2,167 2.30

807 .856

987 1.05 

1,761 1.87

2,449 2.60

5,430 5.76

7,532 7.99

4,046 4.29

1,218 1.29

654 .694

2,390 2.53

Runoff

in 

inches

0.80

2.19

1.58

31.21

.99

1.09 

2.15

2.90

6.64

8.91

4.95

1.49

.77

34.46

Winter discharf 

t Diversion for c 

Note.- -Stage-disc

.e measurement made on this

ity of Yakima (furnished by water superir

harge relation affected by ice Jan. 1-11,

tendent of city of Yakima). 

13-22, Jan. 24 to Feb. 8.
YAKIMA RIVER BASIN 341

Bumping River near Nile, Wash.

Location. Water-stage recorder, lat. 46°52', long. 121°18 T , a quarter of a mile downstream 

1'rom spillway of Bumping Lake Dam and 19 miles west of Nile, Yakima County.

Drainage area. 68 square miles.

Records available.--June to July 1906, April 1909 to September 1950.

Average discharge. 41 years (1909-50), 288 second-feet (adjusted for storage since Novemtier I9iu).

Extremes. Maximum discharge during year, 1,960 second-feet June 21 (gage height, 5.16 

feet); minimum, 4.3 second-feet Sept. 29, 30 (gage height, 0.98 foot).

1906, 1909-50: Maximum discharge, 5,180 second-feet Dec. 29, 1917 (gage height, 

9.33 feet); practically no flow when gates in outlet conduit are closed.

Remarks.--Records fair prior to June 17, good thereafter. No diversion. Flow regulated 

by Humping Lake (see p. 335).

Cooperation. Records collected and prepared in cooperation with Bureau of Reclamation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

74 

73 

71 

78

92

96 

92 

89 

92

114

123 

132 

134 

129 

123

116 

112 

104 

100 

93

90 

89 

87 

85 

83

81 

85 

153 

192 

178 

165

Nov.

160 

158 

153 

146 

143

138 

129 

121 

118 

116

125 

143 

160 

197 

214

206 

203 

283 

368 

340

316 

292 

312 

408 

500

540 

736 

820 

790 

706

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wat

endar year 1949

ember. ...........

er year 1949-50

Dec.

580 

500 

475 

450 

384

316 

308 

300 

288 

276

266 

256 

248 

242 

233

230 

220 

214 

208 

200

192 

186 

183 

178 

168

163 

163 

170 

163 

158 

158

Jan.

155 

155 

153 

153 

148

148 

146 

146 

143 

146

146 

143 

141 

141 

138

141 

141 

141 

138 

146

153 

160 

170 

189 

200

211 

217 

223 

220 

217 

214

Feb.

208 

208 

206 

206 

192

189 

189 

186 

181 

181

173 

168 

168 

165 

165

163 

160 

160 

160 

160

158 

158 

160 

170 

178

189 

203 

211

Mar.

214 

217 

230 

276 

328

400 

490 

475 

445 

420

400 

380 

360 

332 

316

300 

324 

372 

380 

475

575 

455 

485 

490 

575

495 

436 

396 

404 

360 

328

Observed

Discharge in 

second-feet

Maximum

192 

820 

580

1,860

223 

211 

575 

470 

610 

1,920 

1,700 

694 

424

1,920

Minimum

71 

116 

158

49

138 

158 

214 

262 

252 

615 

455 

344 

4.3

4.3

Mean

107 

301 

261

356

164 

179 

391 

327 

445 

1,055 

902 

600 

242

416

Runoff 

in 

aore-feet

6,60( 

17.93C 

16,02C

257, 50C

10,08C 

9.95C 

24,07C 

19..44C 

27,34C 

62,800 

55j49C 

36,890 

14,42C

301,OOC

Apr.

328 

332 

324 

316 

388

432 

470 

412 

372 

340

312 

288 

280 

270 

262

276 

288 

h288 

h292 

312

328 

332 

336 

336 

332

328 

320 

312 

304 

292

May

292 

288 

284 

280 

270

262 

256 

252 

256 

270

304 

348 

428 

485 

480

500 

530 

530 

535 

535

545

570 

575 

575 

580

580 

585 

590 

595 

595 

610

Change In 

contents In 

Bumping Lake 

(acre-feet)

) +1,450 

+10,760 

+210

+9,620

-770 

+2,250 

-4,910 

-2,130 

+11,400 

+15,280 

-1,100 

-22,190 

-8,340

+1,910

June

615 

625 

635 

664 

688

700 

688 

682 

676 

676

682 

694 

718 

730 

664

1,090 

1,480 

1,650 

1,600 

1,740

1,920 

1,740 

1,650 

1,360 

1,120

1,020 

985 

1,120 

1,400

1,650

July

,700 

,600 

,520 

,480 

,480

,440 

,360 

,040 

880 

950

880 

820 

820 

850 

850

820 

760 

742 

754 

730

676 

646 

664 

658 

645

620 

580 

540 

510 

455 

505

Aug.

540 

585 

625 

640 

646

635 

640 

652 

646 

646

635 

640 

646 

640 

635

640 

630 

610 

658 

694

658 

635 

640 

635

635

580 

485 

480 

436 

388 

344

Sept.

296 

332 

296 

262 

236

266 

266 

380 

424 

356

308 

404 

388 

396 

404

336 

344 

276 

252 

217

181 

200 

176 

163 

84

7 

6.2 

4.4 

4.3 

4.3

Adjusted for ctange In contents

Runoff 

in 

acre-feet

8,050 

28,690 

16,230

267,100

9,310 

12,200 

19,160 

17,310 

38,740 

78,080 

54,390 

14, 700 

6,080

302,900

Discharge in 

seoond-feet

Per 

Mean square 

mile

.131 1.9:

482 7. OS 

264 3.8£

369 5.43

151 2.2' 

220 3.24 

312 4.5C 

291 4.2£ 

630 9.2e 

1,312 19.3 

885 13.0 

239 3.5] 

102 1.5C

418 6.1=

Runoff

inches

2.22 

7.91 

4.48

73.65

' 2.57 

3.36 

5.28 

4.77 

10.68 

21.53 

15.00 

4.05 

) 1.68

83.53

h Computed from staff gage readings.

Note. Shifting-control method used May 12 to June 16.
342 YAKIMA RIVER BASIN

American River near Nile, Wash.

Location .--Water-Stage recorder, lat. 46°58'30", long. 121°10'10", in SWij sec. 12, T. 17 

N., R. 13 E,, 300 feet upstream from Bumping Lake road crossing, three-quarters of a 

mile upstream from mouth, and 16 miles northwest of Nile. Datum of gage is 2,700.0 

feet above mean sea level (Washington State Highway Department bench mark).

Drainage area.--79 square miles.

Records available.--April 1909 to September 1911, July 1913 to September 1915 (fragmentary), October 1939 to September 1950.

Average discharge. 13 years (1909-11, 1939-50), 237 second-feet.

Extremes.--Maximum discharge during year, 2,120 second-feet Nov. 27 (gage height, 76.01 

feet); minimum, 49 second-feet Oct. 27 (gage height, 71.98 feet).

1909-11, 1913-15, 1939-50: Maximum discharge, 2,600 second-feet May 27, 1948 

(gage height, 76.6 feet, from high-water mark in well), from rating curve extended 

above 1,400 second-feet; minimum, 20 second-feet Nov. 22, 1940.

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

those for periods of ice effect, which are poor. No diversion or regulation.

Cooperation.--Records collected and prepared in cooperation with Bureau of Reclamation.

ttevlslonsTwater years).--W 982: 1940-42.

Rating table, water year 1949-50, except periods of ice effect or shifting control 

(gage height, in feet, and discharge, in second-feet)

72.0 51 72.9 240 74.5 1,040 

72.2 77 73.2 349 75.0 1.38O 

72.4 111 73.5 485 75.5 1,730 

72.6 156 74.0 750

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

52 

51 

51 

55

67

69 

67 

64 

63 

74

73 

76 

71 

69 

64

63 

62 

61 

57 

57

56 

55 

53 

52 

51

51 

50 

113 

146 

107 

93

Nov.

85 

79 

74

70

66

59 

58

61

70 

124 

202 

240 

250

196 

164 

149 

137 

130

122 

124 

243 

447 

535

525 

1,590 

1,020 

662 

505

Dec.

414 

451 

360 

313 

280

243 

222 

202 

*193

177

151 

154 

146 

142 

132

130 

128 

124 

115 

bl!5

119 

115 

115 

113 

107

106 

109 

137 

137 

126 

117

Jan.

106 

95 

b90 

b86 

b84

b82 

b80 

b80 

b86 

b90

87 

*83 

81 

b78 

b76

b75 

b75 

b75 

b75 

b75

b75 

b85 

b90 

b85 

b75

b70 

b70 

b70 

b70 

b70 

b70

Month foot

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

ffa

lendar year 1949 ...... 

ary

Feb.

b70 

b70 

b70 

b70 

b70

b70 

b75 

b75 

b80 

b80

b80 

82 

79 

80 

90

115 

107 

100 

97 

91

*90 

88

91 

132 

151

188 

190

174

ond 

-days

2,093 

8,111 

5,493

104,082

ember .....................

2,489

2,755 

5,737 

6,344 

21,306 

31,803 

18,599 

4,516 

2,101

ter year 1949-50 .......... 111,347

Peak discharge (base, 700 sec. -ft.). Nov

sec. -ft.; June 5 (8 to 11 a.m.) 1,380 sec.-i

Mar.

161 

154

166 

313 

366

349 

305 

270 

237 

193

202 

188 

172 

161 

151

149 

179 

199 

185

172

164 

156 

149 

142 

134

130 

126 

119 

115 

113 

117

Maximum

146 

1.59C 

451

1,780

106 

190 

366 

345 

1,140 

1,520 

1,100 

250 

82

1,590

Apr.

154 

182 

169 

159

156

154 

151 

149 

144 

137

137 

156 

196 

196 

199

216 

243 

247 

260 

295

345 

329

305

277 

260

243

231 

216 

213 

225

May

228 

234 

228 

225 

219

213 

216 

237 

284

362

495 

750 

1,040 

1,140 

1,080

1,040 

985 

895 

835 

722

778 

865 

865 

835 

835

895 

985 

985 

955 

955 

925

Minimum

50 

58 

106

41

70 

70 

113 

137 

213 

678 

263 

83 

58

50

27 (12:30' p.m. 2, 

"t.; June 21 (7 a.m.

June

1, 

1, 

1, 

1,

1,

1, 

1, 

1,

1,

1, 

1, 

1, 

1,

1, 

1, 

1,

1, 

1,

Mean

67.5 

270 

177

285

80.3 

98.4 

185 

211 

687 

1,060 

600 

146 

70.0

305

985

080 

100 

170 

340

140 

955 

805

750 

778

865 

985 

100 

170 

100

140 

280 

340 

340 

450

520 

280 

040 

865 

750

678 

722 

865 

040

170

July

1 , 100 

1,040 

953 

953 

953

925 

893 

803

722 

693

575 

540 

545 

580

575

525 

490 

480

530 

483

43?

437 

453 

451 

451

419 

383 

343 

30^

277 

263

Per 

square 

mile

0.854 

3.42 

2.24

3.61

1.02 

1.25 

2.34 

2.67 

8.70 

13.4 

7.59 

1.85 

.886

3.86

120 sec. -ft.; May 

) 1,560 sec. -ft.;

Aug.

243 

250 

240 

210 

199

182 

177 

172 

161 

154

149 

139 

134 

132

156

179 

144

132 

130 

122

117 

115 

119 

115

106

100 

93 

88 

88 

87 

83

Sept.

82 

82 

80 

79 

80

79 

77 

74 

74 

73

71 

73 

70 

69 

67

66 

64

63 

62 

61

59 

58 

58 

58 

59

74 

74 

74 

71 

70

Runoff

Inches Acre feet

0.99 4,150 

3.82- 16,090 

2.59 10,900

49.00 206,400

1.17 4,940 

1.30 5,460 

2.70 11,380 

2.99 12,580 

10.03 42,260 

14.97 63,080 

8.76 36,890 

2.13 8,960 

.99 4,170

52.44 220,900

14 (2 a.m.) 1,170 

June 30 (9 a .m.)

1,240 sec.-ft.

» Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. Shifting-control method used Nov. £8 to Jan. 2, Aug. 22 to Sept.
YAKIMA RIVER BASIN 343

Tieton River at Tieton Dam, near Naches, Wash.

Location. Water-stage recorder, 1st. 46°39'30", long. 121°07'20", 900 feet upstream from

 Wild Cat Creek, 1,200 feet downstream from Tieton Dam, 19 miles upstream from Oak Creek,

and 22 miles southwest of Naches, Yakima County.

Drainage area. 187 square miles. , 1Q1Q Records available. August 1908 to September 1914 (fragmentary), October 1918 to March 1919,

 and April 19?b' to September 1950 in reports of Geological Survey. September 1908 to 

December 1913 and July 1914 to September 1920 in State Water-Supply Bulletin 5.

Average discharge. 31 years (1808-12, 1918-20, 1925-50), 473 second-feet (adjusted for 

storage since October 1925). _

Extremes. Maximum discharge during year, 2,110 second-feet July 12 (gage height, fa.au

 fe%TT; minimum observed, 5.5 second-feet Nov. 29 to Dec. 1, Dec. 2-8 (gage height, 1.40

1908-14, 1918-19, 1925-50: Maximum discharge, 8,450 second-feet Dec. 22, 1933 (gage 

height, 9.24 feet); no flow Apr. 4-6, 10, 1930. .

Remarks. Records good except those for period of low flow, which are poor. No diversion. 

 flow regulated by Tieton Reservoir (see p. 335). 

Cooperation. Observer' s services anff six discharge measurements furnished by Bureau of

Reclamation. 

Revisions (water years). W 369: 1909-10.

Rating tables, water year 1949-5O (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Dec 1 to Sept. 30

1.4 5.5 2.6 130 3.5 4O5 5.O 1,440 

1.6 12 2.9 200 3.7 495 5.5 1,900 

1.8 24 3.3 327 4.O 660 5.9 2,110 

2.0 42 3.7 495 4.5 1,020 

2.3 79

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oot.

495 

430 

365 

365 

365

365 

365 

365 

365 

369

369 

369 

369 

369 

369

369 

369 

369 

365 

365

365 

365 

365 

365 

369

365 

365 

365 

365 

361 

365

Nov.

284 

228 

197 

174 

172

172 

149 

149 

214 

225

228 

225 

225 

228 

228

228 

228 

225 

225 

222

222 

222 

222 

222 

225

228

231 

118 

6.0 

5.5

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wat

endar year 1949

h. ..............

er year 1949 -So

Dec.

5.5 

5.8 

5.5 

5.5 

5.5

5.5 

5.5

68 

113 

113

113

113 

113 

113 

136

151 

153 

153 

153 

246

291 

291 

291 

291 

291

291 

291 

313 

365 

409 

414

Jan.

410 

405 

405 

405 

405

4O5 

405 

4O5 

405 

405

410 

410 

410 

414 

414

414 

418 

432 

480 

480

480 

480 

475 

475 

475

475 

a475 

a475 

a475 

a475 

a475

Feb.

3475 

a475 

a475 

a475 

a480

a485 

a490 

495 

500

511

516 

516 

516 

516 

516

516 

516 

516 

516 

516

516 

511 

567 

615 

615

615 

615 

615

Mar.

615 

6O9 

609 

615 

621

621 

615 

609 

6O9 

651

735 

735 

735 

729 

729

729 

729 

735

741 

741

741 

735 

735 

735 

735

735 

729 

795 

860 

860 

860

Observed

Discharge in 

second-feet

Maximum

495 

284 

414

1,850

480 

615 

860 

860 

1,070 

1,070 

2,110 

1,680 

1,OOO

2,11O

MiniBum

361 

5.5 

5.5

5.5

405 

475 

609 

828 

561 

528 

735 

1000 

645

5.5

Mean

372

198 

171

548

438 

525 

711 

855 

764 

795 

1,431 

1,272 

725

690

Runoff 

in 

acre-feet

22,9OO 

11,760 

10,540

396,600

26,920 

29,140 

43,700 

50,860 

46,960 

47,330 

87,98O 

78,190 

43,17O

499,400

Apr.

86O 

860 

860 

860

860

860 

860 

860 

860 

860

828 

828 

828 

828 

828

860 

860 

860 

860 

86O

860 

860 

860 

860 

860

860 

860 

860 

860 

860

May

86O 

86O 

860 

860 

860

860 

860 

86O 

860 

681

567 

561 

561 

567 

567

567 

567 

567 

567 

567

567 

567 

675 

860 

860

860 

930 

1,070 

1,070 

1,070 

1,070

contents in 

Tieton 

Reservoir 

(acre-feet)

-5,910 

+22.09O 

+13,790

+48 , 700

-8,200 

-8,67O 

-11,770 

-13,350 

+28,040 

+65,260 

-7,130 

-45,580 

-25,110

+3,460

June

860 

687 

693 

693 

699

930 

1,070 

1,070 

1,070 

1,070

1,070 

729 

528 

533 

528

538 

544 

544 

544 

538

550 

561 

567 

828 

1,070

1,070 

1,070 

1,070 

1,070 

1,070

July

1,070 

1,070 

1,07O 

1,14O 

1,640

1,840 

1,840 

1,640 

1,560 

fl,520

1,720 

f2,110 

1,84O 

735 

1,030

1,210 

f 1,180 

f 1,210 

fl,2lO 

1,240

1,280 

1,360 

1,440 

1,440 

1,480

1,480 

1,560 

f 1,600 

fl,600 

1,6OO 

1,640

Aug.

1,640 

,680 

,680 

,680 

,680

,680 

,560 

,48O 

,480 

,480

,48O 

,480 

,480 

,480 

,360

,100 

,000 

,OOO 

,000 

,000

,OOO 

,OOO 

,OOO 

,OOO

,000

,000

,000

,000 

1,000

1,000

1,000

Sept.

1,000 

895 

860 

860 

860

860 

795 

747 

765 

765

705 

675 

675 

675 

645

651 

651 

651 

669 

669

669 

669 

669 

669 

669

669 

669 

669 

669 

669

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-fee

Discharge in 

second -feet

Per 

1 Mean square 

mile

16,990 276 1.48 

33,850 569 3.04 

24,330 396 2.12

445,300 615 3.29

18,720 304 1.63 

20,470 369 1.97 

31,93O 519 2.78 

37,510 630 3.37 

75,000 1,220 6.52 

112,600 1,892 10.1 

8O,85O 1,315 7. O3 

32,61O 530 2.83 

18,060 304 1.63

502,900 695 3.72

Runo f f

inches

1.70 

3.39 

2.44

44.64

1.88 

2.05 

3.20 

3.76 

7.52 

11.29 

8.11 

3.27 

1.81

50.42

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

nearby stations.

f Computed on basis of partly estimated gage-height record. 

Note. Nov. 28 to Dec. 31 computed from staff-gage readings.

238382 O - 53 - 23
344 YAKIMA RIVER BASIN

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

Location.--Water-stage recorder, lat. 46°40 I 10", long. 121°00'20 n , in sec. 30, T. 14 N., R. 

. 15 E. (unsurveyed), just downstream from intake of Tieton Canal, 12 miles upstream from

Oak Creek, and 16 miles southwest of Naches. 

Drainage area.--240 square miles. 

Records available.--April to September 1906 (fragmentary gage-height record), July 1907 to

September 195U. 

Average discharge.--41 years (1907-16, 1918-50), 541 second-feet (adjusted for diversions

since 191U ana for storage since October 1924). 

Extremes.--Maximum discharge during year, 1,950 second-feet July 13 (gage height, 4.76 feet);

minimum, 37 second-feet Dec. 7 or 8 (gage height, 1.73 feet, from recorded range in

stage).

1907-50: Maximum discharge, 8,910 second-feet Dec. 22, 1933 (gage height, 9.70 feet);

no flow at times in 1926, 1929, 1931, 1932, 1934, 1945.

Remarks.--Records good except those for periods of shifting control, which are fair. Diversion for irrigation by Tieton Canal. Flow regulated by Tieton Reservoir, 7 miles

above station. 

Cooperation.--Observer's services and six discharge measurements furnished by Bureau of

Reclamation. 

Revlsions.--W 362: Drainage area.

Rating table, water year 1949-50, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

1.8 

2.0 

2.2 

2.4

46

80

130

195

2.6 

2.8 

3.0 

3.3

270

365

470

670

3.6 

3.9 

4.3 

4.7

900

1,140

1,500

1,900

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

.20

21

22

23

2425'

26

26

27

28

29

30

31

Oct.

518

482

390

390

390

395

390

390

390

390

385

385

385

a385

a385

3385

385

380

380

380

380

375

375

380

380

375

375

400

375

370

365

Month

October. . . .

November. . .

December. . .

Calendar 

year 1949

January ....

February . . .

March..... .

April ...... 

May

June .......

July. ......

August .....

September . .

Water year 

1949-50..

NOV.

292

230

216

195

195

195

178

174

250

266

270

284

284

288

284

274

279

279

279

250

209

192

202

288

230

234

375

238

84

72

-

Dec.

67

76

60

55

55

52

a50

a 100

a 145

145

142

145

142

142

151

174

174

170

167

234

335

320

325

320

320

320

330

355

395

420

400

Jan.

395

390

395

395

400

405

405

405

405

405

405

410

410

410

415

410

410

426

459

470

544

551

524

512

488

488

482

488

494

506

530

Feb.

459

459

500

518

488

488>

488

488

494

506

512

512

518

518

524

530

530

530

530

524

524

530

572

684

698

726

726

705

_

.

-

Observed

Discharge in 

second-feet

Maximum

518

375

420

1,460

551 72"3

1,040

1,180 

964

908

1,900

1,280

621

1,900

Minimum

365

72

50

50

390

459

656

964 

454

405

464

621

310

50

Mean

391

236

203

471

446

546

812

1,043 

773

554

1,097

900

385

625

Runoff

in 

acre-feet

24,02C

14,05C

12.47C

341, OOC

27,44C

30,31C

49.93C

62,05C

47,520 

38,89C

67,470

55,340

22.94C

452,400

Mar.

684

663

705

796

772

719

691

670

656

691

788

788

788

780

796

804

868

892 876'

868

868

860

860

860

852

844

844

908

964

980

1,040

Apr.

1,180

1,100

1,050

1,030

1,020

1,030

1,010

996

988

988

988

,020

,040

,040

,050

,060

,100

,100

,100

,100

,140

,100

,060

,050

,040

1,030

980

964

964

964

Change in 

contents 

in Tieton

Reservoir 

acre-feet)

-5,910

+22,090

+13,790

+48 , 700

-8,200

-8,670

-11,770

-13,350 

+28,040

+65,260

-7,130

-45,580

-25,110

-H-3 , 460

May

964

940

924

908

892

892

876

860

900

772

670

756

804

756

719

670

600

512

464

454

500

512

621

788

788

788

876

956

948

916

932

June

788

572

586

600

607

726

908

884

876

884

892

600

405

415

442

464

494

482

482

494

482

459

437

614

868

868

844

828

812

796

-

July

788

788

780

8?0

1,280

,500

,500

,360

,280

,230

1,410

1,900

1,600

464

684

892

892

884

940

940

916

980

1 , 050

1,060

1,060

1,060

1,140

1,230

1,180

1,180

1,230

Aug.

1,280

1,280

1,280

,280

,280

,280

,180

,100

,100

,100

,100

,100

,100

,140

,010

7G4

656

642

642

635

635

642

642

642

642

635

628

621

621

621

621

Sept.

621

551

500

494

488

500

459

415

415

420

375

340

330

335

320

315

315

310

330

330

330

330

325

326

325

330

335

335

340

426

-

Adjusted for change in reservoir

Diversion 

by Tieton

Canal 

(acre-feet)

0

1,150

0

100,300

0

42

653

892

14,490 

17,410

20,430

20,870

19,720

95,660

contents and d

Runoff

in 

acre-feet

18,110

37,290

26,260

490,000

19,240

21,680

38,810

49,590

90,050 

121,600

80,770

30,630

17,550

551,500

Iverslon

Discharge in 

second-feet

Mnan

295

627

427

677

313

390

631

833

1,465 

2,044

1,314

498

295

762

Per 

square 

mile

l.K

2.6:

1.7£

2.82

1.3C

1.62

2.G2 3.4'

6. 1C 

8.52

5.4£

2.0£

1.23

3.1£

Runoff

in 

inches

1.41

2.91

2.05

38.28

1.50

1.69

3.03

3.87 

7.04

9.50

6.31

2.39

1.37

43.07

a Ho gage-height record; discharge computed on basis of records for nearby streams. 

Note.--Shifting-control method used Oct. 1 to Dec. 6, May 17-22, Aug. 24 to Sept. 30.
YAKIMA RIVER BASIN 345

North Fork Ahtanom Creek near Tampico, Wash.

Location.--Water-stage recorder, lat. 46°33'40", long. 120°55'10", in NW£ sec. 2, T. 12 N., 

R. 15 E., 100 feet downstream from Nasty Creek, 3? miles uppstream from Tampico and 

confluence with South Fork, and 20 miles west of Yakima.

Drainage area.--69 square miles.

Records available.--August 1907 to September 1924 (incomplete), March 1931 to September 

1950.

Average discharge.--25 years (1909-15, 1931-50), 66.5 second-feet.

Extremes.--Maximum discharge during year, 392 second-feet June 16 (gage height, 1.99 feet), 

but may have been greater about June 22 during period of no gage-height record; minimum not determined, occurred during period of no gage-height record.

1907-24, 1931-50: Maximum discharge, 770 second-feet May 27, 1948; maximum gage 

height, 4.6 feet June 18, 1916; minimum discharge, 5.0 second-feet Nov. 14, 15, 1944, 

Jan. 20, 1945 (gage height, 0.18 foot), but may have been less during periods of ice 

effect.

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

Ho diversion of importance. No regulation.

Cooperation.--Gage-height record collected in cooperation with, and ten discharge measuremerits furnished by Office of Indian Affairs.

Revisions.--W 362: Drainage area.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in seeond-feet)

0.2 9 1.0 127 

.4 28 1.3 194 

.6 55 l.S 273 

.8 88 2.0 395

Discharge, in second feet, water year October 1949 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

Oct.

21 

20 

20 

20 

21

22 

22

21 

22 

23

22 

22 

21 

21 

22

21 

22 

21 

21 

22

22

22 

21 

20 

20

20 

20 

34 

27 

23 

22

Nov.

22

22 

21 

20 

20

20 

20 

20 

21 

21

23

27 

25 

26 

25

22

21

20 

20

19 

20 

27 

51 

41

36 

88 

57 

46 

40 

~

Dec.

37 

37 

31 

30 

32

30 

31 

24 

28 

18

13.5 

28 

30 

30 

28

25

25 

25 

18 

18

27 

27 

26 

24 

23

23 

23 

23

24 

22 

22

Jan.

18 

18 

17 

15 

14

14 

14 

14 

14 

14

14 

13 

12 

12 

12

12

12 

12 

12

12

14 

16 

15 

15 

14

14 

14 

14 

12 

12 

10

Feb.

10 

9 

9

9

9

10 

12 

14 

14

15 

15 

16 

16 

18

21 

21 

22 

24 

25

26 

28 

30 

32 

40

52 

52 

46

fSt^s

Octc 

Move 

Dece

Ca

Jam, 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194= 

ary

. ... 3C

678 

861 

802.5

,274.5

425 

604

1,822 

3.680

£ 

4

ember . . ..................

,082 

,994 

,057 

,184 

783

ter year 1949-50 ...... ... 30,972.5

Mar.

42 

40 

49 

105 

109

98 

83 

73 

65 

57

51 

45 

42 

41 

40

i 42 

69 

78 

71 

66

61 

57 

5t 

52 

49

48 

45 

44 

42 

44 

60

Maximum

34 

88 

37

499

18 

52 

109 

168 

351 

381 

259 

54 

30

381

Apr.

125 

138 

117 

107 

101

101 

98 

99 

96 

90

90 

115 

135 

131 

131

146 

152 

144 

142 

150

168 

159 

184 

135 

125

119 

113 

105 

99 

101

May

105 

107 

105 

101 

99

96 

96 

99 

117 

152

194 

259 

332 

351 

341

320 

305 

262 

235 

235

288 

326 

296 

273 

265

273 

299 

290 

285 

288 

288

June

311 

326 

326 

314 

357

317 

279 

240 

224 

224

232

259 

288 

320 

326

351 

373 

369 

354 

357

376 

381 

335 

293 

250

221 

224 

235 

259 

273

Minimum Mean

20 21.9 

19 28.7 

13.5 25.9

13 82.9

10 13.7 

9 21.6 

40 58.8 

90 123 

96 228 

221 300 

57 131 

27 38.2 

23 26.1

1950

July

259 

248 

235 

227 

216

209 

194 

180 

172 

159

146 

133 

129 

125

113

115 

109 

103 

99 

94

88 

86 

80 

76 

74

69 

68 

68 

65 

61 

57

Per 

square 

mile

0.317 

.416 

.375

1.20

.199 

.313 

.852 

1.78 

3.30 

4.35 

1.90 

.554 

.378

9 84.9 1.23

Aug.

54 

51 

49 

49 

48

46 

45 

44 

42 

41

42 

40 

40 

40 

40

40 

38 

36 

34 

33

32 

32 

33 

33

32

31 

28 

28 

27 

28 

28

Sept.

27 

28 

27 

27 

28

28 

27 

27 

27 

26

26 

26 

26 

26 

26

26 

25 

25 

25 

25

24 

24 

23 

24 

26

30 

26 

26 

26 

26

Runoff ,

Ir ches

0.37 

.46 

.43

16.32

.23 

.33 

.98 

1.98 

3.82 

4.85 

2.19 

.64 

.42

16.70

Acre feet

1,340 

1,710 

1,590

60,040

843 

1,200 

3,610 

7,300 

14,050 

17,840 

8,050 

2,350 

1,550

61,430

Peak discharge (base, 20O sec. -ft. ) . May 13 (12 p.m.) 369 sec. -ft.; May 21 (11 a.m.) 354 sec.-

ft.; .Tune 5 (1 a.m.) 379 sec.-ft.; June 16 (11:30 p.m.) 392 sec.-ft.; June 30 (10:30 p.m.) 296 sec. 

ft.

Note. No gage-height record Jan. 2 to Feb. 23, June 22-26; discharge computed on basis of records for South Pork: Ahtanum Creek at Conrad Ranch, near Tampico.
346 YAKIMA RIVER BASIN

South Pork Ahtanum Creek at Conrad Ranch, near Tampico, Wash.

Location.--Staff gage, lat. 46°30'30", long. 120°54'50", in W| sec. 23, T. 12 N., R. 15 

K., at Conrad Ranch, 2-=? miles upstream from confluence with North Pork, 2-5- miles southwest of Tampico, and 20 miles southwest of Yakima.

Drainage area. 24.5 square miles.

Records available.--March 1915 to September 1924 (fragmentary), March 1931 to September 

iybu.

Extremes. Maximum discharge observed during year, 108 second-feet June 18; minimum not 

determined, probably occurred during period of ice effect.

1915-24, 1931-50: Maximum discharge observed, 424 second-feet Dec. 23, 1933 (gage 

height, 3.10 feet), from rating curve extended above 80 second-feet; minimum, 2.6 

second-feet Aug. 23, 25, 1931 (gage height, 0.35 foot).

Remarks.--Records fair except those for periods of ice effect, which are poor. Gage read 

twice daily. A few diversions above station for irrigation. No regulation.

Cooperation. Gage-height record collected in cooperation with, and 13 discharge measurements furnished by Office of Indian Affairs.

Revisions (water years). W 312: 1910. W 902: 1939. Drainage area.

Discharge, In second-feet, water year October 1949 to September 1930

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.7

6.7 

6.4 

6.4 

7.0

7.6 

7.6 

7.6

7.6 

7.6

7.6 

7.6 

7.3 

7.3 

7.0

7.0 

7.0 

7.0 

7.0 

7.0

7.0 

7.0 

7.0 

7.O 

7.0

7.0 

7.3 

10.5 

8.8

a.o

7.6

Nov.

.0 

.0

.0

.0

.0

.0

.0

.c

.0 

.4

.1 

.8 

.8 

.8 

.4

6.4 

6.4 

6.4 

6.4 

6.4

6.1 

6.7 

9.6 

9.2 

9.2

9.6 

10 

10.5 

10.5 

9.2

Dec.

8.4 

8.4 

fi.4 

3.0 

8.0

8.0

8.0 

6.5 

8.0 

5.5

4.5

7.0

a.o

8.8 

7.4

7.4 

7.4 

7.0 

5.2 

5.2

8.8 

7.3 

7.3

7.3 

7.3

7.3 

7.3

8.0 

8.0 

8.0 

7.3

Jan.

7.0 

6.7 

6.4 

6.2

6.0

5.8 

5.6 

5.4 

5.2 

4.9

4.7 

4.4 

4.1 

4.0 

4.0

4.0 

4.0 

4.0 

4.0 

4.0

4.0 

4.5 

4.5 

4.5 

4.0

4.0

.0 

.O

.0

.0

.0

Feb.

4.0 

4.0 

4.0

4.0 

4.0

4.0 

4.0 

5.0 

6.0

6.0

6.0 

7.0 

7.3 

7.3 

7.3

6.7 

6.7 

7.0 

7.0 

7.3

8.0 

8.8 

10 

11 

12.5

lfi.5 

19 

19.5

Month

Octo 

Novel 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary .

ter year 1949-50 .......................

Mar.

18.5 

18 

2o 

54 

54

45 

34

33 

27

22

19.5 

18.5 

18 

17.5 

17.5

19

31 

35 

33 

29

27 

27 

26 

25 

25

24 

21 

20 

19 

20 

24

Apr.

43

46 

43 

41 

35

32

30 

27 

27

26

29 

32 

32 

32 

35

38 

40 

40 

39 

40

43 

43 

43 

42

35

32 

29 

27

26 

26

Seeondfoot-days

227 .2 

221.9 

229.0

8,987.1

145.9 

219.9

827.5 

1,053 

1,614 

2,440 

1,035 

384.1 

248.4

8,645.9

May

24

24 

23 

23 

22

22 

22 

22 

21

4.0

42 

54

62 

73 

75

73 

69

65 

63 

59

58 

65

65 

64 

63

65 

69 

70 

71 

71 

73

Maximum

10.5 

10.5

s. a

133

7.0 

19.5 

54 

46 

75 

105 

62 

15 

9.6

105

June

76 

80 

84 

89 

92

90 

84 

80 

74 

68

63

69

75 

80

83 

92 

105 

103

103

101 

98 

94

86 

82

73 

65 

6? 

62 

63

July

62 

62 

59 

57 

51

50 

49 

48 

46 

43

42 

39 

36 

33 

33

30 

26 

24 

23 

22

22 

21 

20 

19 

18

18 

19 

16.5 

15.5 

15.5 

15.5

Minimum

6.4 

5.8 

4.5

4.5

4.0 

4.0 

17.5 

26 

22 

62 

15.5 

9.6 

7.6

4.0

Aug.

15 

15 

14.5 

14.5 

14.5

14.5 

14.5 

14 

13.5 

13.5

13.5 

13 

12.5 

12.5 

12.5

12.5

11.5 

11.5 

11.5 

11.5

11 

11 

11.5 

11.5 

11.5

11 

10.5 

10.5 

10 

10 

9.6

Mean

7.33 

7.40 

7.39

24.6

4.71 

7.85 

26.7 

35.1 

52.1 

61.3 

33.4 

12.4 

8.28

23.7

Sept.

9~.Z 

9.2

9.2 

9.2

9.2

8.8 

8.8 

8.4 

8.4

8.4 

8.4 

8.4 

8.4 

8.4

7.6

7.6 

7.6 

7.6 

7.6

7.6 

7.6

7.6 

7.6 

7.6

8.8 

8.4 

8.0 

7.6 

7.6

Runoff In 

acre-feet

451 

440 

454

17,820

289

436 

1,640 

2,090 

3,200 

4,840 

2,050 

762 

493

17,140

Note. Stage-discharge effected by ice, Dec. 8-13, 15-20, Jan. 1 to Feb. 11. Shiftingmethod used Oct. 1 to Feb. 27, April 5 to May 13, June 25 to Sept. 30.
MISCELLANEOUS DISCHARGE MEASUREMENTS

Measurements of stream flow in Pacific slope basins in Washington and upp?r Columbia 

River Basin made at points other than gaging stations are given in the following table:

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper Columbia 

River Basin during water year October 1949 to September 1950

Naselle River Basin, Wash.

Date

Jan. 20

Stream

Lane Creek. ......

Tributary to or 

diverting from--

Naselle River. ......

Locality

SE-J- sec. 4, T. 10 N., R. 9 W., at 

crossing of U. S. Highway 830, if 

miles northeast of Naselle.

Discharge 

(sec. -ft.)

t!52

t Flow at crest stage; computed by contracted-opening method.

Nemah River Basin, Wash.

Dec. 27 Unnamed stream... North Nemah River... NWi sec

Nemah

Bend.

24,

Roac

T. 12 N.,

, 11 miles

R.

so

10

uth

W.,

of

or

South

tso

t Flow at crest stage; computed by contracted-opening method. 

Willapa River Basin, Wash.

county road, 

Lebam.

Z\ miles ilorthwest of

t Flow at crest stage; computed by contracted-opening method.

North River Basin, Wash.

Oct. 4

Nov. 25

Little North

River.

Joe Creek. .......

Worth River. .......

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

NWi sec. 5, T. 16 N. , R. 8 W. , at former

gaging station, lj miles above mouth

and 4j miles southeast of Cosmopolis.

SEj sec. 30, T. 16 N., R. 8 W., at

crossing of U. S. Highway 101, 8.5

miles southeast of Cosmopolis.

7.60

tt221

tt Flow at crest stage; computed by critical-depth method.

Newskah Creek Basin, Wash.

Oct. 4 Newskah Creek. . . . Grays Harbor ....... SE-J-SEi sec. 32,

former gaging

of Aberdeen.

T. 17 N.

station,

, R. 9 W

4 miles

, at

south

12.8

Charlies Creek Basin, Wash.

Oct. 4 Charlies Creek. . . Grays Harbor ....... SWi sec. 21, T.

former gaging

of Aberdeen.

17 N.,

statioi

R

i,

9 W.,

2 miles

it

south

9.23

Chehalis River Basin, Wash.

Nov. 27

29

Nov. 26

Wynoochee River.. 

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

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

Wishkah River. .. .

Chehalis River. ....

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

NWjNWj sec. 35, T. 18 N., R. 8 W., at 

former gaging station below Black 

Creek, ?j miles northwest of 

Montesano .

NE^NWi sec. 27, T. 19 N., R. 9 W., at 

site of former gaging station, 2.S 

miles northwest of Wishkah.

14,600

*4,480

Flow at crest stage; computed by slope-area method.

Humptulips River Basin, Wash.

Dec. 28

28

Big Creek. .......

Unnamed stream. . .

Humptulips River...

Big Creek. .........

SEi sec. 11, T. 19 N., R. 10 W., on

Larson road, llj miles north of

Hoquiam.

SE£ sec. 11, T. 19 N., R. 10 W., at

crossing of U. S. Highway 101, llj

miles north of Hoquiam.

t99

1-13.8

t Flow at crest stage; computed by contracted-opening method.

Queets River Basin, Wash.

Nov. 8

26

4

Queets River. .... 

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

Clearwater River.

Pacific Ocean. .....

Queebs River. ......

SW£ sec. 36, T. 24 N., R. 

former gaging station, 

west of Clearwater.

Lot 4, sec. 18, T. 24 N., 

former gaging station, 

of Clearwater.

13 W., at 

4 miles sou*;hR. 12 W. , at 

if miles north

3,970

542

Flow at crest stage; computed by slope-area method.
348 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper 

River Basin during water year October 1949 to September 1950 Continued

Queets River Basin, Wash.--Continued

Date

Hov. 26

Stream

Clearwater River.

Tributary to or 

diverting from 

Queets River. ......

Locality

Lot 4, sec. 18, T. 24 H. , 

former gaging station, 

north of Clearwater.

R. 12 W., at 

\\ miles

Discharge 

(sec. -ft.)

*26,500

Plow at crest stage; computed by slope-area method.

Quillayute River Basin, Wash.

Dec.

Hov.

28

26

May

Qra

Creek. .......

Jer Creek. ....

Bogachiel River ....

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

SWj sec. 35, T. 28 H., R. 13 W., at

crossing of U. S. Highway 101,

5 miles south of Forks.

SW£ sec. 17, T. 28 N., R. 13 W., at

crossing of U. S. Highway 101,

2 miles south of Forks.

ft 558

t235

t Flow at crest stage; computed by contracted-opening method, 

tt Flow at crest stage; computed by critical-depth method.

Lyre River Basin, Wash.

Hov. 26 Cross Creek. ..... Lake Crescent ...... Ei sec. 31, T. 30 H. , R. 9 W., at 

crossing of U. S. Highway 101, 

2 miles east of Palrholm.

tl!2

t Flow at crest stage; computed by contracted-opening method. 

Valley Creek Basin, Wash.

Feb. 24 East Valley Creek Valley Creek..... .. SW£ sec.

Hister

Angel e

15, T.

road £

3.

30 H

mile

, R. 6 W

south of

, on

Port

29.9

Basins tributary to Strait of Juan de Fuca, Wash.*

1949

Feb. 16

16

1950

Feb. 25

25-

1949

Feb. 16

16

Tumwater Creek. . .

Peabody Creek. . . .

Ennis Creek. .....

Lees Creek. ......

Bagley Creek. ....

Siebert Creek....

Strait of Juan de

Fuca.

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

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

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

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

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

SEj sec. 4, T. 30 H., R. 6 W., 1,000

feet above mouth at Port Angeles.

HE£ sec. 10, T. 30 H., R. 6 W., at

culvert 2 blocks east of Lincoln St.

in Port Angeles.

Iffit sec. 11, T. 30 H., R. 6 W., at

railroad bridge at Rayonler Co.

plant at Port Angeles.

SEj sec. 12, T. 30 H., R. 6 W., at

crossing of U. S. Highway 101, 2j

miles east of Port Angeles.

Hi sec. 16, T. 30 N., R. 5 W., at U. S.

Highway 101 crossing 3^ miles east

of Port Angeles.

SEj sec. 14, T. 30 H., R. 5 W., at

U. S. Highway 101 crossing 6 miles

east of Port Angles.

*490

t279

tl,980

t99

412

tl,340

* Flow at crest stage; computed by slope-area method.

** Includes measurements made in water year 1949.

t Flow at crest stage; computed by contracted opening.

Dean Creek Basin, Wash.

Feb. 25 Dean Creek....... Washington Harbor.. NW£ sec. 12, T. 29 H., R. 3 W., on old

highway at west edge of Blyn.

t Flow at crest stage; computed by contracted-opening method. 

Big Quilcene River Basin, Wash.

Feb. 25 Penny Creek. ..... Big Quilcene. ...... SE£ sec. 22, T. 27 

S. Fish hatchery 

of Quilcene.

H., R. 2 W., at U. 

, 2 miles southrest

*232

t Plow at crest stage; computed by flow over dam.

Dosewallips River Basin, Wash.

Hov. 1

26

Dosewallips River

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

Dabob Bay.. ........

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

SWt sec. 24, T. 26 N., R

former gaging station,

northwest of Brinnon.

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

3 W., at

5j miles

175

" 13,200

Plow at crest stage; computed by slope-area method.
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins In Washington and upper Columbia 

River Basin during water year October 1949 to September 1950 Continued

Unnamed basin. Wash.

Date

Dec. 28

Stream

Unnamed stream...

Tributary to or 

diverting from--

Annas Bay ..........

Locality

SWi sec. 35, T. 22 N., R. 4 W., at 

crossing of U. S. Highway 101, 2| 

miles south of Potlatch.

Discharge 

(sec. -ft.)

t228

t Flow at crest stage; computed by contracted-opening method.

Chlco Creek Basin, Wash.

Oct. 22

Apr 4

Oct. 22

Wildcat Creek....

Kltsap Lake outlet.

Chlco Creek. .......

Dlckerson Creek....

Ei sec. 2, T. 24 N., R. 1 W., at outlet of Wildcat Lake, 5 miles west of 

Bremerton.

SEt sec. 8, T. 24 N., R. 1 E., at lake 

outlet 2 miles south of Chlco.

0.29

15.2

2.18

.97

1.87 

25.2

11.9

21.3

13.4

5.16

.95

Kennedy Creek Basin, Wash.

. Schneider Creek.... SE£ sec. 32, T. 19 N., R. 3 W., on U. 

S. Highway 101, 8j miles south of 

Shelton.

Dec. 28 Unnamed stream..

t Flow at crest stage; computed by contracted-opening method.

Deschutes River Basin, Wash.

Oct. 3 Deschutes River.. Budd Inlet. ........ SWi sec. 8,

crossing, 

Rainier.

T.

12

15 N

mile

, R. 3 E.,

southeast

at road

of

12.4

McAlllster Creek Basin, Wash.

Oct. 3 

20

June 1

Sept. 28

McAlllster 

Springs.

McAlllster Creek. . . SEt sec. 19, T. 

stilling pool 

water supply,

18 N., R. 1 E., In 

for city of Olympla 

8 miles east of Plympia.

23.3

21 5

Nisqually River Basin, ¥ash.

Nov.

Oct.

Feb.

Mar.

May

Aug.

Sept

Oct.

Dec.

27

4

17

VI

fi

15

fi

Ifi

P8

17

PS

3

4

3

17

i:i

East Creek.. .....

Little Mashel

River.

Yelm Irrigation

ditch.

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

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

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

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

Powell Creek.. . . .

Tanwax Creek. ....

Tobotan Creek. . . .

Centralla power

canal.

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

Nlsqually River. . . .

Mashel River. ......

Left side Hlsqually

River.

Nlsqually River....

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

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

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

. ...d<_ ............

NWi sec. 32, T. 15 N., R. 5 E., at site

of former gaging station, ij miles

above mouth and ij miles southwest of

Elbe.

SEj sec. 8, T. 16 N., R. 4 E., at highway crossing, half a mile southwest

of Eatonvllle.

Si sec. 20, T. 16 N., R. 3 E., opposite

gaging station on Nlsqually River

near McKenna.

NWi sec. 28, T. 16 N., R. 3 E. , at road

crossing, 8 miles west of Eatonvllle.

East line sec. 36, T. 17 N., R. 3 E.,

at highway crossing, 5 miles northwest of Eatonvllle.

NWj sec. 19, T. 16 N., R. 3 E., at

Hobson road crossing, 10 miles west

of Eatonvllle.

NWi sec. 1, T. 16 N., R. 2 E., £ mile

below head and 3j miles southeast of

McKenna .

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

*1,130

2.00

1.80

4 89

1.24

1.09

8.32

389

384

* Flow at crest stage; computed by slope-area method.
350 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

River Basin during water year October 1949 to September 1950--Contlnued

Nlsqually River Basin, Wash. Continued

Date

Feb. 6

Mar. 9

AUK 22

Mar. 9

Aug 22

Oct. 3

Stream

Centralla power 

canal .

McKenna Creek.. ..

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

Lacamas Creek....

Tributary to or 

diverting from 

Nlsqually River. . . .

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

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

Muck Creek. ........

Locality

NW£ sec. 1, T. 16 N., R. 2 E., | mile 

below head and 3j miles southeast of 

McKenna.

Middle sec. 28, T. 17 If., R. 2 E., at 

crossing of farm road at McKennE.

KWi sec. 28, T. 17 N., R. 2 E. , at 

railroad crossing at McKenna.

East line sec. 35, T. 18 N., R. 2 E., 

at road crossing 2 miles east of Roy.

Discharge 

(sec. -ft.)

349 

347

360

353

366

345

376

22.1 

16.0

4.59

1.85

2.50

.13

e.25

27.8 

16.1

11.7

7.19

6.96

7.81

7.32

1.15

Fuyallup River Basin, Wash.

Oct.

May

Oct.

3

3

3

Strawberry Creek.

Maplewood Springs

Clear Creek. .....

Stuck River. .......

Clark Creek. .......

Fuyallup River. ....

SWi sec. 18, T. 20 H., R. 5 E., at

Sumner-Auburn road crossing, 1 mile

northeast of Sumner.

SEj sec. 32, T. 20 H. , R. 4 E. , at old

pumping plant at Fuyallup.

SWj sec. 13, T. 20 N., R. 3 E., below

railroad bridge, 300 feet below

culvert on West Floneer Way and

2 miles east of Tacoma.

SWi sec. 13, T. 20 H., R. 3 E., at

mouth, 2 miles east of Tacoma.

11.8

24.1

25.1

18.5

18.6

21.5

23.4

22.9

29.0

12.8

3.67

Hylebos Creek Basin, Wash.

Mar. 17 South

bos

Pork HyleCreek.

Hylebos Creek. ..... SEj- sec. 33, T. 21

State Highway 5D

Puyallup.

N., R. 4

, 5 miles

E. , or

north of

tt4.8

tt Plow at crest stage; computed by critical-depth method.

Green River Basin, Wash.

Mar. 4

Jan. 20

Deep Creek. ......

Dolloff Lake outlet.

Deep Lake ..........

Green River. .......

SEi sec. 21, T. 21 H., R. 7 E., at

crossing of Chicago, Milwaukee, St.

Faul, and Faclf ic Ry. , J mile northeast of Cumberland.

Stfi sec. 14, T. 21 H., R. 4 E., 5C feet

south of State Highway No. 5 and

2 miles west of Auburn.

t82

t62

t Plow at crest stage; computed by contracted-opening method.

Lake Washington Basin, Wash.

Feb.

Jan.

25

22

22

North Branch

Mercer Cr^elc.

Evans Creek. .....

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

Mercer Creek. ......

Bear Creek. .........

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

ME-ir sec. 27, T. 25 N., R

county road, 2j miles

Bellevue.

NWi.sec. 16, T. 25 N., R

mond-Pall City Highway

southeast of Redmond.

HEj sec. 17, T. 25 N., R

mond-Fall City highway

of Adelaide, Wash.

. 5 E., or

northeast of

. 6 E., or Red-

, 5j miles

. 6 E. on Red-

, 1 mile east

t45.1

*32.2

tllS

t Plow d.t ;rest stage; computed by contracted-opening method, 

t Plow a.f crest stage; computed by flow over dam.
MISCELLANEOUS DISCHARGE MEASUREMENTS 351

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

River Basin during water year October 1949 to September 1950 Continued

Snohomlsh River Basin, Wash.

Date

June 27

27 

27

 Jt

Mar. 21

Stream

Snohomlsh River . .

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

Ebey Slough. .....

Munson Creek. ....

Trioutary to or 

diverting from 

Port Gardner Bay. . .

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

Possession Sound...

Alien Creek. .......

Locality

SWi sec. 21, T. 29 N., R. 5 E., at 

Hewitt Avenue Bridge In Everett. 

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

NE£ sec. 8, T. 25 N., R. 5 E., at crossing of U. S. Highway 99, at Everett. 

Line between sees. 22 and 27, T. 25 N., 

R. 5 E., at crossing of State road 

No. 15, 2 miles east of Everett.

llWt sec. 26, T. 30 N., R. 5 E., on 

county road 2 miles northeast of 

Marysville.

Discharge 

(sec. -ft.)

a!3,000

b5,640 

a5,950

t52

t Plow at crest stage; computed by contracted-opening method. 

a High tide, 

b Low tide.

Stillaguamlsh River Basin, Wash.

Aug. 29 

June 21

30

July 18

29 

June 22 

July 24

29

29

June 7 

30

Aug. 13

30

29

29

29 

29 

29 

29 

June 7 

30

July 7

Aug. 13

30

28 

Sept. 19

Aug. 28 

Sept. 19

Aug. 28

Deer Creek. ...... 

Marten Creek. ....

Unnamed stream... 

Mallardy Creek. . .

Schweitzer Creek.

Wisconsin Creek.. 

Black Creek.... . .

Unnamed .stream. . . 

Twenty-Two Creek. 

Unnamed stream. . . 

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

Turlo Creek.. ....

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

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

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

Unnamed stream...

Crider Creek. .... 

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

Unnamed stream...

South Pork Stlllaguamish River.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Wi sec. 17, T. 30 N., R. 10 E., 10") 

feet above Mountain Loop road a mile 

northeast of Silverton. 

SWj sec. 23, T. 30 N., R. 9 E., at 

road crossing 2 miles southwest of 

Silverton.

mouth 2j miles southwest of SilvsrtonSEj- sec. 22, T. 30 N. , R. 9 E., at road 

crossing 3 miles southeast of 

Silverton. 

SE-J sec. 21, T. 30 N., R. 9 E., 100 

feet above mouth and 4 miles southwest of Silverton.

Center line sec. 19, T. 30 N., R. 9 E., 

300 feet above road, and 4 miles 

southeast of Verlot ranger station.

crossing, 3^ miles southeast of 

Verlot ranger station. 

SE£ sec. 24, T. 30 N., R. 8 E., at road 

crossing, 3ir miles southeast of 

Verlot ranger station. 

SWi sec. 24, T. 30 N., R. 8 E., 200 

feet below county bridge and 3 m'les 

southeast of Verlot ranger station.

crossing, 2^ miles southeast of 

Verlot ranger station.

crossing, 2 miles southeast of Verlot 

ranger station. 

MKs- sec. 23, T. 30 N. , R. 8 E., at road 

crossing, 2 miles southeast of Verlot 

ranger station. 

NEi sec. 23, T. 30 N., R. 8 E., 30 feet 

below road crossing and 1-J miles 

southeast of Verlot ranger station. 

SEi sec. 15, T. 30 N., R. 8 E., at road 

crossing, 1 mile southeast of Verlot 

ranger station. 

SWi sec. 15, T. 30 N., R. 8 E., at road 

crossing, -J mile southeast of Verlot 

ranger station. 

S| sec. 9, T. 30 N., R. 8 E., within 

100 feet above road crossing, i mile 

northwest of Verlot ranger station.

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

SWi sec. 9, T. 30 N., R. 8 E., at road 

crossing, J mile northwest of Verlot 

ranger station. 

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

SE-t sec. 8, T. 30 N., R. 8 E., at road 

crossing, 1 mile northwest of Verlot 

ranger station.

SEj sec. 8, T. 30 N., R. 8 E., Just 

above road crossing, l£ miles northwest of Verlot ranger station.

13.4 

60.4

e.04 

57.2

2.06

.68 

48.8

25 2

e.49

11.2 

e.75 

e.30 

11.0

2 73

.36

.55

.46
352 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous dlschargi 

River Basin

5 measurements in Pacific slope basins in Washington and upper Columbia 

during water year October 1949 to September 1950 Continued

Stlllaguamlsh River Basin, Wash. Continued

Sept. 19 

Aug. 28 

28

Aug. 28

Sept. 19 

Aufe. 27

June 30

Aug. 28 

22

Aug 13

30 

Mar. 20

Feb. 24

Aug. 30 

22

June 9

Aug 11

Aug. 27

June 14

June 9

Aug 11

27

Aug. 27

Stream

Unnamed stream. . . 

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

Marsh Creek. .....

Unnamed stream. . . 

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

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

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

Mud Lake outlet..

Unnamed stream. . . 

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

Unnamed stream... 

Jim Creek. .......

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

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

Ashton Creek. ....

Unnamed stream... 

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

Segaison Creek. . .

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

Unnamed stream...

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

Tributary to or 

diverting from 

South Fork Stillaguamlsh River.

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

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

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

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

Canyon Creek. ......

South Fork Stlllaguamlsh River.

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

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

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

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

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

Squire Creek.. .....

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

North Fork Stlllaguamlsh River.

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

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

Locality

SEi see. 8, T. 30 N. , R. 8 E., Just 

above road crossing, \\ miles northwest of Verlot ranger station. 

Sj sec. 8, T. 30 N., R. 8 E., at road 

crossing, li miles northwest of 

Verlot ranger station. 

Wj sec. 8, T. 30 N. , R. 8 E., Jus1: below 

road crossing, 2 miles northwest of 

Verlot ranger station.

SEi sec. 7, T. 30 N. , R. 8 E., at road 

crossing, 2j miles northwest of Verlot 

ranger station.

crossing, 2| miles northwest of Verlot 

ranger station. 

Nj sec. 7,.T. 30 N., R. 8 E., above road 

crossing, approximately 2| miles

Nfii sec. 7, T. 30 N., R. 8 E., 50 feet 

below road crossing and 3 miles northwest of Verlot ranger station.

SEy sec. 33, T. 31 N., R. 7 E., at logging bridge, £ mile above mouth and 

4 miles northeast of Granite Palls.

NW-i sec. 12, T. 30 N., R. 6 E., at road 

crossing, l£ miles northwest of 

Granite Palls. 

SE-i sec. 34, T. 31 N., R. 6 E., below 

crossing, \\ miles southeast of Jorden.

NEf sec. 28, T. 31 N., R. 6 E., 150 feet

above county road crossing and \ mile 

southeast of Jorden.

SEy sec. 20, T. 31 N., R. 6 E., at road 

crossing, it miles northwest of Jorden. 

NE-E- sec. 5, T. 31 N., R. 7 E. , J mile 

above Cub Creelc and 4 miles south of 

Oso.

SWi sec. 36. T. 32 N., R. 6 E., at 

bridge, 65 miles northeast of 

Arlington. 

On line sees. 7 and 8, T. 31 N., R. 6

E., at road crossing, 3j miles northwest of Jorden. 

NEf sec. 7, T. 31 N., R. 6 E., 200 feet

above road crossing and 2 miles east 

of Arlington.

SE-J sec. 1, T. 31 N., R. 5 E., at road 

crossing, li miles east of Arlington. 

SEj- sec. 36, T. 32 N. , R. 5 E., at road 

crossing, li miles northeast of 

Arlington.

South line sec. 8, T. 32 N., R. 9 E., 

above county road crossing, 3^ miles 

northwest of Darrlngton.

SWi sec. 8, T. 32 N., R. 9 E. , 300 feet 

below road crossing and 3j miles 

northwest of Darrington.

SEir sec. 1, T. 32 N., R. 8 E., atove 

county road crossing, 1 mile northeast 

of Fortson.

NEy sec. 10, T. 32 N., R. 8 E., above

road crossing, 2 miles east of Hazel.

Ej sec. 7, T. 32 N., R. 8 E., abcve road 

crossing, 1 mile southwest of Hazel.

SW£ sec. 7, T. 32 N., R. 8 E., 5C feet 

above road crossing and ij miles west 

of Hazel.

Discharge 

(sec. -ft.)

0.32 

e.ll 

4.75 

4.34

e.61 

e.52

.60 

5.16 

4.16

8.44 

2.41

1.45

.67

e.Ol

.89 

.68

1,34

1.34

2.08

.85

.50

.47

.40 

112

51.8

1,280 

e.02

1.79

1.62

e.Ol 

.17

.13

23.2 

31.4

27.0

7.29

6.92

No flow

1.73 

No flow

60.4 

50.1

19.1

4.58

4.93

48.4

62.2

19.4

7.83

9.81

.73 

.81

.83
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper Col 

River Basin during water year October 1949 to September 1950 Continued

Stillaguamish River Basin, Wash. Continued

Date

Sept. 20 

Aug. 27

June 14

July 21

31

27

Aug. 27 

Sept. 7

Aug. 27

Aug. 26 

26 

26 

Sepf.20

Aug. 26

Aug. 26 

26 

26

Sept. 20

Sept. 20

Aug. 26 

26

July 19 

June 15 

29

July 25

Aug. 10

30

22 

June 15

29

July 25

Aug. 10

29

29 

Sept. 21

Aug. 30 

30 

30 

30

June 9 

Aug. 22

Stream

Unnamed stream... 

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

Brooks Creek. ....

Unnamed stream...

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

Deer Creek. ......

Unnamed stream...

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

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

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

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

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

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

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

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

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

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

Armstrong Lake 

outlet.

Pilohuck Creek. . . 

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

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

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

Lake Creek. ......

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

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

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

Bear Creek. ...... 

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

Unnamed stream. . . 

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

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

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

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

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

Tributary to or 

diverting from 

North Fork Stillaguamish River.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Armstrong Creek...

Stillaguamish 

River.

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

Pilchuck Creek. .. .

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

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

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

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

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

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

Locality

SWi sec. 7, T. 32 H., R. 8 E., 50 feat 

above road crossing and ij miles west 

of Hazel. 

»£ sec. 12, T. 32 H., R. 7 E., at road 

crossing, 4 miles east of Oso.

county road bridge, 3 miles east o*" Oso.

SWi sec. 3, T. 32 H., R. 7 E., at county 

road bridge, lj miles northeast of Oso.

Wj sec. 16, T. 32 H., R. 7 E., below confluence of two streams below road 

crossing, lj miles east of Oso.

SWt sec. 9, T. 32 H., R. 7 E., at road 

crossing, J mile northeast of Oso. 

Ej sec. 9, T. 33 N. , R. 7 E., 100 feet 

below Rick Creek and 5j miles northeast 

of Alpine. 

South line sec. 7, T. 32 H., R. 7 E., 

below road crossing, 1 mile west of Oso.

SW£ sec. 7, T. 32 N., R. 7 E., at road 

crossing, li miles west of Oso. 

SE-J- sec. 12, T. 32 N., R. 6 E., at road 

crossing, l£ miles west of Oso. 

SE£ sec. 12, T. 32 H., R. 6 E. , at road 

crossing, 2 miles west of Oso. 

Sj sec. 12, T. 32 N. , R. 6 E., 100 feet 

below road crossing and 2 miles west of 

Oso. 

SE£ sec. 11, T. 32 H., R. 6 E., below 

road crossing, 3 miles west of Oso. 

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

SE£ sec. 11, T. 32 N., R. 6 E., at road 

crossing, y mile east of Cicero. 

Ej sec. 21, T. 32 H., R. 6 E., at road 

crossing, 1 mile northeast of Trafton. 

SE£ sec. 20, T. 32 N., R. 6 E., 300 feet 

below road crossing and 4j miles 

northeast of Arlington. 

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

above road crossing and 3 miles northeast of Arlington.

SWi sec. 30, T. 32 H., R. 6 E., at roadcrossing, 2j miles northeast of 

Arlington. 

SW£ sec. 30, T. 32 H., R. 6 E., 80 feet 

above road crossing and 2J- miles northeast of Arlington.

Center sec. 26, T. 32 N., R. 5 E., i mile 

below lake and lj miles southeast of 

Bryant. 

SEj sec. 17, T. 33 H., R. 6 E., 100 feet 

above county road crossing and 2 miles 

northwest of Alpine.

HWi sec. 6, T. 31 H., R. 5 E., at morth, 

IT; miles northeast of Silvana. 

NEi sec. 21, T. 33 N., R. 6 E., 100 feet 

below county bridge and 1 mile west of 

Alpine.

SWt sec. 17, T. 33 N., R. 6 E., at read 

crossing, 2j miles northwest of Alpine.

SWi sec. 18, T. 33 N., R. 5 E., at read 

crossing, 3j miles northwest of Alpine. 

NEi sec. 23, T. 33 N. , R. 5 E., at road 

crossing, 5 miles west of Alpine. 

SWi sec. 23, T. 33 N., R. 5 E., at road 

crossing, 5j miles west of Alpine.

SE£ sec. 25, T. 32 H. , R. 4 E., at road 

crossing, 2 miles northeast of Silvana. 

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

Discharge 

(sec. -ft.)

0.68

e.48 

12.4

2.99

1.95

3.00

18.5 

11.8

5.62

2.19

e.04 

54.3

1.27

e.54 

e.02 

e.45 

.46

2.11

e.03 

e.30 

2.17

e.Ol 

1.87

e.50 

73.6

25.7 

.53

4 " 59Q~

5.81

No flow 

e.02 

No flow

e.20 

No flow

e Estimate.
354 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Pacific slope basins In Washington and vpper Columbia 

River Basin during water year October 1949 to September 1950 Contim-ed

Stillaguamlsh River Basin, Wash. Continued

Date

June 12

12

Aug. 21

22

21

Sept. 19

Stream

Pish Creek. ......

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

Unnamed stream...

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

Miller Creek.....

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

Tributary to or 

diverting from 

South Slough. ......

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

Stlllaguaralsh River

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

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

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

Locality

mi sec. 18, T. 31 N., R. 5 E., at gage

site I mile above mouth and 4f miles

west of Arlington.

MWi sec. 18, T. 31 N., R. 5 E., 600 feet

below gage site and 4i miles west of

Arlington.

Wi sec. 3, T. 31 N., R. 4 E., 30 feet

above road crossing and li miles west

of Silvana.

NEi sec. 5, T. 31 N., R. 4 E., at road

crossing, 3 miles west of Silvana.

HEi sec. 32, T. 32 N. , R. 4 E., just

above road crossing, 3£ miles northwest of Silvana.

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

Discharge 

[see. -ft.)

1.12

1.18

.18

.20

.90

1.55

Skagit River Basin, Wash.

June 8

June 8

3

Jan. 22

Clear Creek. .....

Dan Creek. .......

Coal Creek. ......

Unnamed stream. . .

Sauk River. ........

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

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

Skagit River... ....

SWi sec. 31, T. 32 N., R. 10 E. , at 

mouth, 3 miles southeast of Darlington.

SWt sec. 8, T. 32 N., R. 10 E., a^ove 

road crossing, 2j miles northeast of 

Darrington.

Si sec. 10, T. 35 N., R. 5 E., at former 

gaging station at Canyon mouth, 4 miles 

northeast of Sedro-Wooley.

SE-J sec. 4, T. 32 N., R. 4 E., on U. S. 

Highway 99, 9i miles south of M1:. 

Vernon .

394

92.6

65.0

87.0

14.7

11.6

1.62 

.45

t62.0

t Plow at crest stage; computed by contracted-opening method.

Samish River Basin, Wash.

Dec. 28 Unnamed stream... Samish Lake ........ NWi sec. 23, T. 37 N., 

Highway 99, 6i miles 

Bellingham.

R. 3 E., on U. S. 

southeast of

tl90

t Plow at crest stage; computed by contracted-opening method. 

Squalicum Creek Basin, Wash.

Oct. 10 Squalicum Creek. . Bellingham Bay. .... MWi sec. 16, 

feet above 

gage site,

T. 38 N., R. 3 E., 1,000 

railroad crossing and former 

3i miles above mouth.

0.70

Hooksack River Basin, Wash.

May 23

Dec. 26 

Oct. 5

Mar. 20

May 6

Worthen Creek. . . .

Unnamed stream... 

Larrabee Springs.

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

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

Kamm ditch. ........

Ten Mile Creek. .... 

Deer Creek. ........

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

MW-j sec. 14, T. 40 N., R. 3 E., just below bridge on Lynden-Sumas road. 2i 

miles northeast of Lynden.

Hi sec. 27, T. 39 N., R. 3 E., on Starry 

road, 3| miles southeast of Laurel. 

MWiJ-NWi sec. 36, T. 39 N., R. 2 E., 100

of Laurel.

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

1.69

t32 

1.15

2.48

2.41

t Plow at crest stage; computed by contracted-opening method.

Kootenay River Basin

Oct. 11 Kootenay River. . . Columbia River. .... Grohman Harrows, 2 miles below Nelson,

British Columbia; measurements referred

to gage Ho. 10 at Nelson (station 8 N.,

J. 9 of Water Resources Division, Development Services Branch, Depa-tment

of Resources and Development, Canada).

8,740
MISCELLANEOUS DISCHARGE MEASUREMENTS 355

Miscellaneous discharge measurements in Pacific slope basins in Washington and upp?r Columbia 

River Basin during water year October 1949 to September 1950--Continued

Fend Oreille River Basin

Date

Sept. 11 

Aug. 7

Oct. 25

Apr. 19 

June 20 

July 17 

Apr. 18

21 

May 13 

June 20 

Oct. 7

Stream

Fend Oreille River

Douglas Creek. ....

Priest River. .....

Tributary to or 

diverting from 

Columbia River. . . .

Blackfoot River...

Flathead Lake. ....

Pend Oreille River

Locality

In lot 4, sec. 26, T. 56 N. , R. 5 W.,

downstream from Priest River, Idaho. 

In S«i sec. 24, T. 56 N., R. 6 W. 

Boise meridian, In Bonner County, 

Idaho, 2 miles west of Albany Palls, 

Idaho. 

NWt sec. 5, T. 12 N., R. 11 W., at 

county road bridge on HelmvilleDrummond road 4 miles southwest of 

Helmville, Mont.

SWi sec. 17, T. 25 H., R. 21 W., 4.7 

miles northwest of Dayton, Mont.

In SWi sec. 5, T. 59 N., R. 4 W., at 

southwest end of Priest Lake, 2 miles 

northwest of Coolin, Idaho.

Discharge 

(sec. -ft.)

13,200 

33,500

7.9

18.8 

11.7 

6.0 

37.5

34.5 

60.5 

6.8 275

Spokane River Basin, Wash.

June 11 

Feb. 23

Oct. 19

Sept. 29

Bigelow Creek. .... 

Coulee Creek. .....

Little Spokane 

River.

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

Spokane River. .... 

Deep Creek. .......

Spokane River.. . ..

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

NWi sec. 25, T. 26 N., R. 43 E., 2 miles 

northeast of Spokane. 

NWi sec. 24, T. 26 N., R. 41 E., 300 

feet above county bridge and 5 mil^s 

northwest of Spokane.

NWi sec. 5, T. 26 H., R. 42 E., belo-« 

road crossing, 5j miles west of 

Dartford.

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

*1,510 

5.97

Mo flow

389 

454

473

448

410

386

* Plow at crest stage; computed by slope-area method.

Okanogan River Basin, Wash.

Apr. 12 Tona sket Creek. . .. Okanogan Elver. . . . NWi sec 

miles

26, T. 40 N 

above mouth,

, R. 

near

27 E., li 

Orovllle.

**484

** Includes measurements made in water year 1949.

Entiat River Basin, Wash.

June 15

28

29

Entiat River. .....

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

Columbia River. . . .

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

MEi sec. 33, T. 26

private bridge,

voir.

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

N., R. 20 I

-i miles be:

., at

ow Arden4,310

2.820

Crab Creek Basin, Wash.

Mar. 31

31

June 18

Crab Creek. .......

Wilson Creek. .....

Iron Springs ......

Columbia River. . . .

Crab Creek. .......

Ground water. .....

SEi sec. 2, T. 22 ft., R. 29 E., at railroad crossing at Wilson Creek.

NEi sec. 12, T. 22 N., R. 29 E., at

county road crossing in Wilson Creek.

SWi sec. 9, T. 21 ft., R. 26 E., £ mile

west of Ephrata.

510

52.3

690

Yakima River Basin, Wash.

Oct. 5 

18

May 1

Aug. 15

Apr. 10

Aug. 23 

Oct. 20

Kittitas Canal.. .. 

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

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

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

Roza Canal. .......

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

City of Yakima 

municipal diversion.

Right side Yakima 

River.

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

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

Left side Maches 

River.

Sec. 11, T. 20 N., R. 13 E., at headworks near Easton.

South line NWi sec. 18, T. 12 N., R. 20 

E., at bridge 7 miles southeast of 

Yakima.

miles southeast of Yakima. 

NWi sec. 29. T. 12 N., R. 20 E., at 

bridge, 9f miles southeast of Yakiir".. 

NWi sec. 34, T. 15 N., R. 16 E., 50 to 

400 feet below pipe outlet at headworks, 6 miles west of Naches.

294

460 

883

904 

8.48

c Furnished by Bureau of Reclamation.
356 MISCELLANEOUS DISCHARGE MEASUREMENTS

sllaneous discharge measurements in Pacific slope basins In Washington and upper 

River Basin during water year October 1949 to September 1950 Continued

Yaklma River Basin, Wash.--Continued

Date

Dec. 8

Aug 21

Oct. 25

Oct. 20

Aug 21

Oct. 14

Oct. 14

May 23

Apr. 10

Oct. 11

Aug. 22

Stream

City of Yakima 

municipal diversion.

Selah Valley Canal

Wapatox power 

canal.

Union Gap Canal. . .

Hew Reservation 

Canal.

Old Reservation 

canal.

Sunnyside Canal... 

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

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

Tributary to or 

diverting from 

Left side Haches 

River.

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

River.

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

Left side Yakima 

River.

Right side Yakima 

River.

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

Left side Yakima 

River.

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

Locality

NWi sec. 34, T. 15 H., R. 16 E., 50 

to 400 feet below pipe outlet at 

headworks, 6 miles west of Haches.

NWi sec. 36, T. 15 H. , R. 16 E., 

above all diversions, near Haches.

former gaging station near Haches.

HWi sec. 36, T. 15 H., R. 16 E., at 

headworks near Haches.

HEi sec. 17, T. 12 H. , R. 19 E., at 

entrance to Union Qap, 1 mile south 

of town of Union Gap.

MWj sec. 20, T. 12 H., R. 19 E., at 

gaging station near Parker.

SWj sec. 28, T. 12 H., R. 19 E., at 

gaging station near Parker.

SW£ sec. 27, T. 12 H., R. 19 E., at 

gaging station near Parker.

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

Discharge 

(sec. -ft.)

11. ?.

48.7

477

1.09

722

68.9

867

1.340
INDEX

Aberdeen, Wash., Wynoochee River. ......

Accuracy of field data and computed

results..........................

Acre-foot, definition of...............

Agencies other than Geological Survey, 

records collected by.............

Ahtanum Creek, North Fork, near

Tampico, Wash....................

South Fork, at Conrad Ranch, near

Tampico, Wash....................

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

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

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

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

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

Arlington, Wash., Armstrong Creek near. 

Fish Creek near......................

Jim Creek near.......................

North Fork Stillaguamish River near.. 

Portage Creek near...................

South Fork Stillaguamish River near..

Armstrong Creek near Arlington, Wash...

Armstrong Lake outlet, Wash., discharge

measurement of...................

Ashley Creek near Kalispell, Mont......

Ashton Creek, Wash., discharge measurements of.........................

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

Green River near.....................

Bacon Creek near Marblemount, Wash.....

Bagley Creek, Wash., discharge measurement of..........................

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

Bear Creek (tributary to Bitterroot

River) near Victor, Mont.........

Bear Creek (tributary to Green River)

near Eagle Gorge, Wash...........

Bear Creek (tributary to Middle Fork

Flathead River) near Essex, Mont.

Bear Creek (tributary to Pilchuck Creek), 

Wash., discharge measurements of.

Bear Creek (tributary to Sammish River) 

at Redmond, Wash.................

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

Tahuya River near....................

Union River near.....................

Bellingham, Wash., Whatcom Creek near..

Benson Creek near Granite Falls, Wash..

Big Creek, Wash., discharge measurement of..........................

Bigelow Creek, Wash., discharge measurement of..........................

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

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

Birchbank, British Columbia, Columbia 

River at.........................

Bitterroot River, East Fork, at Conner, 

Mont.............................

near Darby, Mont.....................

West Fork, near Conner, Mont.........

Bitterroot River (West Fork) Reservoir, 

Mont., contents of...............

Black Creek, Wash., discharge measurements of.........................

Black Diamond, Wash., Newaukum Creek

near.............................

Black River at Little Rock, Wash.......

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

near Helmville, Mont.................

near Ovando, Mont....................

Blackjack Creek at Port Orchard, Wash., 

discharge measurements of............

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

Blodgett Creek near Corvallis, Mont....

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

Boardman Creek near Silverton, Wash....

Boistfort, Wash., South Fork Chehalis 

River at.........................

Page

31 Bonner, Mont., Blackfoot River near.... 236

Bonners Ferry, Idaho, Kootenai River 

5 at ...................... .......203-204

1 Kootenai River near.............202,205,206

12

345

346

178

Boulder Creek (Kootenai River lasin) 

near Leonia, Idaho............

Boulder Creek (Pend Oreille River

Basin) at Maxville, Mont......

ulder River near Oso, Wash.

Boundary Creek near Porthill, Idaho... 

Bremerton, Wash., Chico Creek rear....

Gold Creek near.....................

Kitsap Lake near.

317 

342

159 Mission Creek near 

161 Mission Lake near 

152 Panther Creek near 

156' Panther Lake near 

160 Tahuya River near' 

148 Union River near 

159 Wildcat Lake near

Brinnon, Wash., Duckabush River near.. 

353 Brooks Creek, Wash., discharge measure267 ments of

Bryant, Wash., Pilchuck Creek rear.....

Buckley, Wash., Mud Mountain Reservoir

near. 

White River near.

352

104

97

173

348 _ .

177 Burnt Fork Creek near Stevensville,

Mont 

246

Calder, Idaho, St. Joe River at 

102

256

353

119

49

51

46

183

150

355

194

240

239

238

228

351

103

27

236

234

235

61

351

192

244

326

149

23

North Creek near. 

Sammamish River at.

120

118

214

232

157

220

57-59

52

56

48

47

53

52

50

45

60

40

353

159

90

91

62

182

Bumping Lake, Wash., contents of......335-336

Bumping River near Nile, Wash.......... 341

Burley Creek at Burley, Wash...........

Burlington, Wash., Samish River near...

248

291

Camas Reservoirs, Mont., contents of.., 

Canyon Creek at Kulshan, Wash.......... 188

near Granite Falls, Wash.............

Carbon River near Fairfax, Wasir ........

Cascade River at Marblemount, V'ash. ....

Cataldo, Idaho, Coeur d'Alene Fiver 

near.

151

87

174

281 

Cavanaugh Lake near Oso, Wash.......... 160

Cedar Falls, Wash., Cedar River at..... 108

Cedar River near....................106,107

Rex River near....................... 112

Cedar River at Cedar Falls, Wash....... 108

at Renton, Wash...................... 110

below Bear Creek, near Cedar Falls,

Wash............................. 106

near Cedar Falls, Wash............... 107

near Landsberg, Wash................. 109

North Fork, near Lester, WasK....... 105

South Fork, near Lester, Wasir ........ Ill

Cedarville, Wash., Rock Creek ft....... 28

Centralia, Wash., Skookumchuck River

near............................. 25

Centralia power canal, Wash., discharge

measurements of................. 349-350

Chambers Creek below Leach Creek, near

Steilacoom, Wash................. 82

Chambers Creek Basin, Wash., gfgingstation records in............... 81-82

Charley Creek near Eagle Gorge, Wash... 101 

Charlies Creek, Wash., discharge

347 

24 

21

19

20

23

347

measurement of.

Chehalis, Wash., Newaukum River near...

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

near Doty, Wash.

near Grand Mound, Wash...............

South Fork at Boistfort, Wast ........

Chehalis River Basin, Wash., discharge

measurements in.

gaging-station records in............ 19-31

Chelan, Wash., Chelan River at......... 310

Lake Chelan at....................... 309

Chelan River at Chelan, Wash........... 310

357
INDEX

Chelan River Basin, Wash., gagingstation records in..............308-311

Chico Creek near Bremerton, Wash........57-59J

Chico Creek Basin, Wash., discharge

measurements in.................. 349

gaging-station records in............ 56-60

Church Creek near Stanwood, Wash....... 162

Clark Fork above Missoula, Mont........ 221

at St. Regis, Mont................... 223

below Missoula, Mont................. 222

near Heron, Mont..................... 225

near Plains, Mont.................... 224

Cle Elum, Wash., Teanaway River near... 339 

Yakima River at...................... 331

Cle Elum Lake, Wash., contents of.....335-336

Cle Elum River near Roslyn, Wash....... 338

Clear Creek, Wash., discharge measurements of........................350,354

Clear Lake, Wash., East Fork Nookachamps Creek near................ 181

Clearwater River, Wash., discharge

measurements of.................347-348

Cloquallum River at Elma, Wash......... 29

Clover Creek near Tillicum, Wash....... 81

Coal Creek (tributary to Sauk River),

Wash., discharge measurements of. 354 

Coal Creek (tributary to Skagit River)

near Sedro Woolley, Wash......... 180

Coeur d'Alene Lake at Coeur d'Alene,

Idaho............................ 282

Coeur d'Alene River at Enaville, Idaho. 280 

near Cataldo, Idaho.................. 281

near Prichard, Idaho................. 279

Columbia Falls, Mont., Flathead River

at. .............................. 251

Flathead River near.................. 250

South Fork, Flathead River near...... 259

Columbia River at Birchbank, British

Columbia......................... 194

at Grand Coulee Dam, Wash............ 197

at international boundary............ 195

at Trinidad, Wash....................3, 198

Columbia River main stem, British

Columbia-Wash., gaging-station

records on......................194-198

Colville, Wash., Mill Creek near....... 278

Colville River at Kettle Falls, Wash... 275 

Colville River Basin, Wash., gagingstation records in..............275-278

Como Lake, Mont., contents of.......... 228

Computations, accuracy of results of... 5 

Concrete, Wash., Baker River at........ 177

Skagit River near.................... 167

Conner, Mont., East Fork Bitterroot

River at......................... 240

West Fork Bitterroot River near...... 238

Contents, definition of................ 2

Control, definition of................. 1

Coolin, Idaho, Priest Lake near........ 269

Priest River near.................... 270

Cooperation, record of................. 12

Copeland, Idaho, Kootenai River near..207-208 

Corvallis, Mont., Blodgett Creek near.. 244 

Coulee City, Wash., Blue Lake near..... 326

Park Creek near...................... 325

Park Lake near....................... 324

Coulee Creek, Wash., discharge measurements of......................... 355

Crab Creek at Irby, Wash............... 319

discharge measurement of............. 355

near Moses Lake, Wash................ 320

near Smyrna, Wash.................... 323

near Warden, Wash.................... 322

Crab Creek Basin, Wash., discharge

measurements in.................. 355

gaging-station records in...........319-329

Cranberry Creek near Shelton, Wash..... 65

Crider Creek, Wash., discharge measurements of......................... 351

Cross Creek, Wash., discharge measurement of.......................... 348

Cub Creek near Oso, Wash..............153-154

Page 

Darrington, Wash., Sauk River near..... 175

Squire Creek near.................... 157

Stillaguamish River near............. 155

Dartford, Hash., Little Spokane River

at............................... 300

Little Spokane River near............ 301

Data, accuracy of...................... 5

explanation of....................... 2-4

Day Creek near Lyman, Wash............. 179

Dayton Creek, Mont., discharge measurements of......................... 355

Dean Creek, Wash., discharge measurement of.......................... 348

Deep Creek (tributary to Deep Lake),

Wash., discharge measurement of.. 350 

Deep Creek (tributary to Kootenai River)

at Moravia, Idaho................ 217

Deer Creek (Deer Creek Basin) near

Shelton, Wash.................... 64

Deer Creek (Stillaguamish River Basin)

at Oso, Wash..................... 158

discharge measurement of............351,353

Deming, Wash., Nooksack River at....... 185

Deschutes River, Wash., discharge

measurement in................... 349

near Olympia, Wash................... 68

near Ranier, Wash.................... 67

Deschutes River Basin, Wash., gagingstation records in............... 57-69

Dewatto Creek near Dewatto, Wash....... 54

Diablo Reservoir, Wash., contents of... 169 

Dogfish Creek near Poulsbo, Wash....... 55

Dolloff Lake outlet, Wash., discharge

measurement of................... 350

Dosewallips River, Wash., discharge

measurements of.................. 348

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

Elk Creek near....................... 22

Douglas Creek (Moses Coulee Basin) near

Alstown, Wash.................... 317

near Palisades, Wash................. 318

Douglas Creek (Pend Oreille River Basin),

Mont., discharge measurements of. 355 

Dubuque Creek near Lake Ste-rens, Wash.. 144 

Duckabush River near Brinnon, Wash..... 40

Dongeness River near Sequim, Wash...... 39

Duwamish River Basin, Wash., gagingstation records in...............95-104

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

Dan Creek, Wash., discharge measurements of.........................

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

Rock Creek near......................

Rock Creek Canal near................

192

354

239

241

242

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

Charley Creek near...................

East Creek, Wash., discharge measurement of..........................

near Elbe, Wash......................

East Valley Creek, Wash., discharge

measurement of...................

Easfcon, Wash., Kachess Rive- near......

Eastport, Idaho, Moyie Rive- at........

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

Ebey Slough, Wash., discharge measurements of.........................

Eileen, Idaho, Moyie River at..........

Elbe, Wash., East Creek near...........

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

Elk Creek near Doty, Wash..............

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

Elwha River at McDonald Bridge, near

Port Angeles, Wash...............

Enaville, Idaho, Coeur d'Alene River at

Ennis Creek, Wash., discharge measurement of..........................

Entiat River, Wash., discharge measurement of..........................

Ephrata, Wash., Rocky Ford Creek near..

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

Middle Fork Flathead Rive- at........

Skyland Creek near...................

Evans Creek, Wash., discharge measurements of.........................

Fairfax, Wash., Carbon River- near......

Fairholm, Wash., Soleduck River near... 

Fall City, Wash., Patterson Creek near.

Raging River near....................

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

Finn, Mont., Nevada Creek near.........

Fish Creek, Wash., discharge measurements of.........................

near Arlington, Wash.................

102

101

349

77

348

337

215

79

351

216

77

299

22

29

38

280

348

355

329

256

254

257

350

87

35

137

136

272

237

354

161
INDEX 359

Page

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

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

Flathead River at Columbia Falls, Mont, 

at Flathead, British Columbia........

Middle Fork, at Essex, Mont..........

near West Glacier, Mont............

near Columbia FallSj Mont............

near Poison, Mont....................

South Fork, at Spotted Bear ranger

station, near Hungry Horse, Mont. 258 

near Columbia Falls, Mont.......... 259

Flint Creek at Maxville, Mont.......... 230

near Southern Cross, Mont............ 229

Floods, special reports on............. 11

Fortine Creek near Trego, Mont......... 212

Franklin D. Roosevelt Lake at Grand

Coulee Dam, Wash................. 196

Fraser River Basin, Wash., gagingstation record in................ 193

Fred Burr Creek near Victor, Mont...... 245

French Creek, Wash., discharge measurements of......................... 352

Friday Creek near Lester, Wash......... 99

Georgetown Lake, Mont., contents of.... 228

Glacier, Wash., Nooksack River near.... 184

Gold Bar, Wash., Olney Creek near..... 127-128

Skykomish River near................. 124

Wallace River at..................... 126

Gold Creek near Bremerton, Wash........ 52

Grader Creek, Wash., discharge measurement of.......................... 348

Grand Coulee Dam, Wash., Columbia River

at............................... 197

Franklin D. Roosevelt Lake at........ 196

Grand Mound, Wash., Chehalis River near 20

Granite Falls, Wash., Benson Creek near 150

Canyon Creek near.................... 151

Pilchuck River near.................. 140

South Fork Stillaguamish River near.. 147 

Graves Creek near Hungry Horse, Mont... 264 

Green Creek, Wash., discharge measurement of.......................... 347

Green River near Auburn, Wash.......... 97

near Lester, Wash.................... 95

near Palmer, Wash.................... 96

Green River Basin, Wash., discharge

measurements in.................. 350

Greenacres, Wash., Spokane River at.... 284

Greenwater, Wash., Greenwater River at. 93 

White River at....................... 89

Greenwater River at Greenwater, Wash... 93 

Griffin Creek near Tolt, Wash.......... 138

Hamilton, Mont., Skalkaho Creek near... 243 

Hamilton, Wash., Alder Creek near...... 178

Hayden Creek below North %ork, near

Hayden Lake, Idaho............... 293

Hayden Lake at Hayden Lake, Idaho...... 294

Hayden Creek near.................... 293

Hayden Lake at....................... 294

Hayden Lake Irrigation District diversion near........................ 295

Hayden Lake Irrigation District diversion near Hayden Lake, Idaho..... 295

Helmville, Mont., Blackfoot River near. 234 

Hemple Creek, Wash., discharge measurement of.......................... 351

Heron, Mont., Clark Fork near.......... 225

Hoh River near Spruce, Wash............ 34

Hoodsport, Wash., North Fork Skokomish

River near....................... 41

Hope, British Columbia, Skagit River

near............................. 163

Hope, Idaho, Pend Oreille Lake at...... 226

Huetter, Idaho, Rathdrum Prairie Canal

at............................... 296

Huge Creek near Wauna, Wash............ 63

Humptulips River near Humptulips, Wash. 32

Hungry Horse, Mont., Graves Creek near. 264

Lower Twin Creek near................ 262

South Fork Flathead River near....... 258

Spotted Bear River near............... 260

Sullivan Creek near.................. 263

Twin Creek near...................... 261

Hylebos Creek near Tacoma, Wash........ 94

Hylebos River, South Fork, Wash., discharge measurement of............ 350

191 Icicle Creek above Snow Creek, near

252 Leavenworth, Wash................ 316

251 Index, Wash., South Fork Skykomish

249 River near....................... 123

254 Irby, Wash., Crab Creek at............. 319

255 Iron Springs, Wash., discharge measure250 ment of.......................... 355

253 Issaquah Creek near Issaquah, Wash..... 115

Jim Creek, Wash., discharge measurements of......................... 352

near Arlington, Wash................. 152

Joe Creek, Wash., discharge measurement of.......................... 347

Johns Creek near Shelton, Wash......... 66

Jorden Creek, Wash., discharge measurements of......................... 352

Juan de Fuca, Wash., strait of, basins 

tributary to, discharge measurements in......................... 348

Kachess Lake, Wash., contents of......335-336

Kachess River near Easton, Wash........ 337

Kalispell, Mont., Ashley Creek near.... 267

Whitefish Creek near................. 266

Kapowsin Creek near Kapowsin, Wash..... 86

Keechelus Lake, Wash., contents of....335-336

Kendall Creek at Kendall, Wash......... 187

Kettle Falls, Wash., Colville River at. 275 

Kettle River near Perry, Wash,......... 272

near Laurier, Wash. '. ................. 273

Kettle River Basin, Wash., gagingstation records in..............272-274

Kiona, Wash., Yakima River at.......... 334

Kitsap Lake near Bremerton, Was1!....... 56

Kitsap Lake Outlet, Wash., discharge

measurements of. .................. 349

Kittitas Canal, Wash., discharge

measurements of.................. 355

Kootenai Creek near Stevensville, Mont. 247 

Kootenai River at Bonners Ferry,

Idaho...........................203-204

at Boom Camp, near Bonners Fe-ry,

Idaho............................ 202

at Klockmann Ranch, near Bonn3rs

Ferry, Idaho..................... 206

at Leonia, Idaho..................... 201

at Libby, Mont....................... 200

at Newgate, British Columbia......... 199

at Porthill, Idaho..................209-210

discharge measurements of............ 354

near Bonners Ferry, Idaho............ 205

near Copeland, Idaho................207-208

Kootenai River Basin, British ColumbiaIdaho-Mont., discharge measurements in......................... 354

gaging-station records in...........199-200

Kootenay Lake at Kuskonook, British

Columbia......................... 211

Kulshan, Wash., Canyon Creek at........ 188

Kuskonook, British Columbia, Kootenay

Lake at.......................... 211

Lacamas Creek, Wash., discharge measurement of.......................... 350

La Grande, Wash., Mashel River near.... 78

Nisqually River at................... 73

Lake Chelan at Chelan, Wash............ 309

Lake Creek at Troy, Mont............... 213

discharge measurements of............ 353

Lake Shannon, Wash., contents of....... 169

Lake Stevens at Lake Stevens, Wash..... 142

Dubuque Creek near................... 144

Little Pilchuck Creek near........... 141

Stevens Creek at..................... 143

Lake Washington Basin, Wash., discharge

measurements in................... 350

gaging-station records in...........105-120

Landsberg, Wash., Cedar River near..... 109

Lane Creek, Wash., discharge measurement of.......................... 347

Larrabee Springs, Wash., discharge

measurements of.................. 354

Latah Creek at Spokane, Wash........... 298

Laurier, Wash., Kettle River near...... 273

Leavenworth, Wash., Icicle Creek near.. 316 

Lebam, Wash., Willapa River at......... 16

Lees Creek, Wash., discharge measurement of.......................... 348

238382 O - 53 - 24
Page 

Lenore Lake near Soap Lake, Wash....... 327 Moses Lake, Wash., Crab Creek near.

Leonia, Idaho, Boulder Creek near

Kootenal River at....................

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

Green River near.....................

North Fork Cedar River near..........

Smay Creek near......................

Snow Creek near......................

South Fork Cedar River near..........

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

Lincoln Creek near Rochester, Wash.....

Little Mashel River, Wash., discharge 

measurement of...................

Little North River, discharge measurement of..........................

Little Pilchuck Creek near Lake Stevens, 

Wash.............................

Little Rock, Wash., Black River at.....

Little Spokane River at Dartford, Wash.

at Elk, Wash.........................

discharge measurements of

214

201

10! 

100 

98 

111 Mud Mountain Reservoir near Buckley,

200

Moses Lake at........................ 321

Moses Lake at Moses Lake, Wash......... 321

Mount Vernon, Wash., Skagit River near. 168

Moyie River at Eastport, Idaho......... 215

at Eileen, Idaho. 

Mud Lake outlet, Wash., discharge

measurements of.

Wash.

Munson Creek, Wash., discharge measurement of..........................

Myers Creek near Myncaster, British

Columbia.........................

Myncaster, British Columbia, Myers

Creek near.......................

216

352

90

351

274

274

Naches, Wash., Naches River near....... 340

Tieton River near...................343,344

Naches River below Tieton River, near 

Naches, Wash

near Dartford, Wash.................. 301 Naselle River near Naselle, Wash

Long Canyon Creek: near Porthill, Idaho 

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

Loon Lake near Loon Lake, Wash

218 National, Wash., Nisqually River near.. 

290 Nevada Creek above reservoir, near Finn,

276 Mont.

Sheep Creek at....................... 277 Nevada Creek Reservoir, Mont., contents

Lotus, Idaho, St. Maries River at 

Lower Jocko Lake, Mont., contents of.. 

Lower Twin Creek near Hungry Horse,

Mont............................

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

292 of.

Lyraan, Wash., Day Creek near........... 179 Newgate, British Columbia, Kootenai

Lynden, Wash., Fishtrap Creek at....... 191

Nooksack River near............

McAllister Creek Basin, Wash., discharge measurements in...........

McAllister Springs, Wash., discharge

measurements of..................

McCoy Creek near Sultan, Wash..........

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

Nisqually River near.................

Tanwax Creek near....................

McKenna Creek, Wash., discharge measurements of.........................

Mallardy Creek, Wash., discharge

measurements of..................

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

Maplewood Springs, Wash., discharge

measurements of..................

Marblemount, Wash., Bacon Creek near... 

Cascade River at.....................

Skagit River at......................

Marsh Creek, Wash., discharge measurements of.........................

Marten Creek, Wash., discharge measurements of.........................

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

Marysville, Wash., Quilceda Creek near.

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

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

Flint Creek at.......................

May Creek, Wash., discharge measurement of.

340

14

71

237

228

356

103

24

199

186Newhalem, Wash., Ross Reservoir near... 164 

Ruby Creek near...................... 170

Skagit River at...................... 165

349 Stetattle Creek near.

Thunder Creek near. 

349 Newskah Creek, Wash., discharge 

132 measurement of...................

228 New Reservation Canal, Wash., discharge 

measurements of..................

262 Newaukum Creek near Black Diamond, Wash. 

311 Newaukum River near Chehalis, Wash.....

75Nighthawk, Wash., Similkameen River 

74

80Nile, Wash., American River near.......

Bumping River near...................

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

at McKenna, Wash.....................

351 near McKenna, Wash...................

113 near National, Wash..................

Nisqually River Basin, Wash., discharge 

350 measurements in.................349-350

173 gaging-station records in............ 71-80

174 Nookachamps Creek, East Fork, near

166

352

351

330

near Renton, Wash.................... 114 North Nemah River near South Bend,

Mercer Creek, North Branch, Wash.,

discharge measurement of......... 350 North River near Raymond, Wash

Metaline Falls, Wash., Pend Oreille

River near.......................

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

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

Miller Creek, Wash., discharge measurements of.........................

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

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

near Bremerton, Wash.................

Mission Creek Basin, Wash., gagingstation records in............... 47-49

Mission Lake near Bremerton, Wash.....

Mission Valley Reservoirs, Mont., contents of........................

Missoula, Mont., Clark: Fork above..... 

Clark Fork below....................

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

Montague Creek, Wash., discharge

measurements of.................

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

Moses Coulee Basin, gaging-station

records in......................317-318

351

217

River at.

172

171

347

near. 306

342

341

73

75

74

71

Clear Lake, Wash. 181 

Nooksack River above Cascade Creek,

near Glacier, Wash............... 184

at Deming, Wash...................... 185

near Lynden, Wash. t. ................. 186

South Fork, near Wickersham, Wash.... 189

145 Nooksack River Basin, Wash., discharge 

78 measurements in.................. 354

232 gaging-station records in...........184-191

230Horth Bend, Wash., South Fork Snoqualmie River at..................... 135

348 North Creek near Bothell, Wash......... 120

Wash.

North River Basin, Wash., discharge 

measurements in...............

gaging-station record in..........

227 

307 

278

Ohop Creek near Eatonville, Wash. 

3540kanagan River at Okanagan Falls,

15

18

347

18

79

British Columbia................. 302

at Oroville, Wash.................... 304

near Tonasket, Wash.................. 305

Okanogan River Basin, Wash., gagingstation records in..............302-306

4701d Reservation Canal, Wash., discharge

measurements of.................. 356

22801ympia, Wash., Deschutes River near... 68 

Spurgeon Creek near.................. 69

Woodland Creek near.................. 70

Olney Creek near Gold Bar, Wash.......127-128

Oroville, Wash., Okanogan River at..... 304

soyoos Lake near. 303 

Orting, Wash., Puyallup Rive" near..... 83

Oso, Wash., Boulder River near......... 157

Cavanaugh Lake near.................. 160
INDEX

Page 

Oso, Wash., Cub Creek near............153-154 Renton, Wash., Cedar River at..........

Deer Creek at........................ 158 j May Creek near.......................

Osoyoos Lake near Oroville, Wash....... 303iRex River near Cedar Falls, Wash.......

Ovando, Mont., Blackfoot River near...

Palisades, Wash., Douglas CreeKnear.. 

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

Panther Creek near Bremerton, Wasn....

Panther Lake near Bremerton, Wash.....

Park Creek below Park Lake, near Coulee

Page 

110 

114 

112 

235|Rochester, Wash.. Lincoln Creek near.. 26

Rock Creek (tributary to Bitter-root 

318 River) near Darby, Mont.......... 241

Rock Creek (tributary to Cedar Fiver)

near Maple Valley, Wash.......... 113

Rock Creek (tributary to Chehalis River)

at Cedarville, Wash.

City, Wash.... .................. 325IRock Creek (tributary to Flint Creek),

~ - -" " ' ~ Middle Fork, near Philipsburg,

Mont.............................

Rock Creek (East Fork) Reservoir, Mont.

Park Lake near Coulee City, Wash....... 324

Parker, Wash., Yaklma River near....... 333

Patterson Creek near Fall City, Wash... 137 

Peabody Creek, Wash., discharge measurement of.......................... 348

Pend Oreille Lake at Hope, Idaho....... 226

Pend Oreille River below Z Canyon, near

Metaline Falls, Wash............. 227

discharge measurements of............ 355

Pend Oreille River Basin, Idaho-Mont.,

discharge measurements in........ 355

gaging-station records in...........221-271

smaller reservoirs in................ 228

Penny Creek, Wash., discharge measurement of.......................... 348

Peshastin, Wash., Wenatchee River at... 315 

Philipsburg, Mont., Middle Fork Rock 

CreeK near.....................

Pilohuck Creek, Wash.,

discharge measurements

of.............................

near Bryant, Wash. .................. 159

Pilehuek River near Granite Falls, Wash. 140 

Plain, Wash., Wenatchee Lake near...... 312

Wenatchee River at................... 314

Plains, Mont., Clark Fork near......... 224

Poison, Mont., Flathead River near,,... 253 

Port Angeles, Wash., Elwha River near.. 38 

Port Orchard, Wash., Blackjack Creek at 61 

Portage Creek near Arlington, Wash..... 160

Porthill, Idaho, Boundary Creek near...

contents of.

Rock Creek Canal near Darby, Mont. 

Rocky Ford Creek near Ephrata, V'ash.. . 

Roslyn, Wash., Cle Elum River near. 

Ross Reservoir near Hewhalem, Wash.... 

Roza Canal, Wash., discharge measurements of.

Ruby Creek below Panther Creek, near

Newhalem, Wash.

Runoff in inches, definition of..

St. Joe River at Calder, Idaho... 

St. Maries River at Lotus, Idaho.

233

St. Regis, Mont., Clark Fork at. 

jSamish River near Burlington, Wash....,

'Samish River Basin, Wash., gagingj station record in................

35?lSammamish Like near Redmond, Wash.... ..

283

297

42

43

55

349

Long Canyon Creek near...............

Smith Creek near.....................

Post Falls, Idaho, Spokano River near.. 

Spokane Valley Farms Co.'s canal at.. 

Potlatch, Wash., North Fork Skokomlsh 

River near.......................

Skokomish River near.................

Poulsbo, Wash., Dogfish Creek near.....

Powell Creek, Wash., discharge measurement of..........................

Prichard, Idaho, Coeur d'Alene River

near.............................

Priest Lake at outlet, near Coolin,

Idaho............................

Priest River, Idaho, discharge measurement of..........................

near Coolin, Idaho...................

near Priest River, Idaho............. 271

Publications on stream flow, by Geological Survey. .............'....... .6-10,12

by State agencies.................... 10-11

269

355

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

Puyallup River at Aldertbn, Wash.......

at Puyallup, Wash....................

near Orting, Wash....................

Puyallup River Basin, Wash., discharge 

measurements in.

85

84

85

83

350 

gaging-station records in............ 83-93

Queets River, Wash., discharge measurements of......................... 347

Queets River Basin, Wash., discharge

measurements in.................. 347

Quilceda Creek near Marysville, Wash... 145

Quillayute River Basin, Wash., discharge

measurements in.................. 348

Quinault River at Quinault Lake, Wash.. 33

Raging River near Fall City, Wash...... 136

Railroad Creek at Lucerne, Wash........ 311

Ranier, Wash., Deschutes River near.... 67

Rathdrum Prairie Canal at Huetter,

Idaho............................ 296

Raymond, Wash., North River near,...... 18

Redmond, Wash., Bear Creek at.......... 119

Sammamish Lake near. 

Sammamish River near.

116

117

3ammamish River at Bothell, Wash, 

near Redmond, Wash.

measurement of.

Second-feet per square mile, definition

of.

Secona-foot, definition of.............

Second-foot-day, definition of.........

Sedro Woolley, Wash., Coal Creek near.. 

Segalson Creek, Wash., discharge

measurements of.

Selah Valley Canal. Wash., discharge

measurements of.

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

Sheep Creek at Loon Lake, Wash.........

Shelton. Wash., Cranberry Creek near..,

233

228

242

329

338

164

355

170

1

291

292

223

182

182

116

118

117

Satsop River near Satsop, Wash......... 30

"auk Fiver ibove Vlhitechuck River, near

Darrington, Wash................. 175

near Sank, Wash...................... 176

Schweitzer Creek, Wash., discharge

351

1

1

1

180

352

356

39

277

65

64

66

348

149

146

306

Silverton, Wash., Boardman Creek near.. 

Stillaguamish River near.............

Similkameen River near Nighthawk, Wash.

'kagit River at Marblemount, Wash...... 166

at Newhalem, V.'ash.................... 165

near Concrete, Wash.................. 167

near Hope, British Columbia.......... 163

near Mount Vernon, Wash.............. 168

Skagit River Basin, British ColumbiaWash. , discharge measurements in. 354 

gaging-station records in...........163-181

reservoirs in. 

Skalkaho Creek near Hamilton, Mont....,

Skokomish River near Potlatch, Wash..., 

North Pork, below Staircase Rapids, 

near Hoodsport, Wash.............

near Potlatch, Wash................

South Fork, near Union, Wash.

169

243

43

41

42

44

Skokomish River Basin, Wash., gagingstation records in............... 41-44

Skookum Creek near Wickersham, Wash.... 190

Skookumchuck River near Centralia, Wash. 25 

Skykomish, Wash., South Fork Skykomish

Skykomish River near Gold Ear, V'ash.... 124

South Fork, near Index, Wash......... 123

near Skykomish, Wash..............121-122

Skyland Creek near Essex, Wont......... 257

Smay Creek near Lester, Wash........... 100

Smith Creek {Kootenai River Basin) near

219 

Smyrna, Wash., Crab Creek near......... 323

Porthill, Idaho.

Jnohomish River at Snohomish, Wash,.... 125 

discharge measurements of............ 351
362

Page 

Snohomish River Basin, Wash., discharge

measurements in.................. 351

gaging-station records in...........121-145

Snoqualmie River near Tolt, Wash....... 134

South Fork, at North Bend, Wash...... 135;

Snow Creek near Lester, Wash........... 98

Soap Lake, Wash., Lenore Lake near..... 327

Soap Lake near....................... 328

Soap Lake near Soap Lake, Wash......... 328

Soleduck River near Fairholm, Wash..... 35-37

Somers, Mont., Flathead Lake at........ 2531

South Bend, Wash., North Nemah River

near............................. 15

South Elma, Wash., Chehalis River at... 21 

South Prairie Creek at South Prairie,

Wash............................. 88

Southern Cross, Mont., Flint Creek near 229 

Trout Creek near..................... 231

Spokane, Wash., Latah Creek at......... 298

Spokane River at....................286,287

Spokane River near..............285,288,289

Spokane River above Seven-Mile Bridge,

near Spokane, Wash............... 288

at Greenacres, Wash.................. 284

at Long Lake, Wash................... 290

at Spokane, Wash.................... 286,287

below Green Street, at Spokane, Wash. 286 

below Nine-Mile Dam, near Spokane,

Wash............................. 289

below Trent Bridge, near Spokane,

Wash............................. 285

near Post Falls, Idaho............... 283

Spokane River Basin, Idaho-Wash., discharge measurements in........... 355

gaging-station records in........... 279-301

Spokane Valley Farms Co.'s canal at

Post Falls, Idaho................ 297

Spotted Bear River near Hungry Horse,

Mont............................. 260

Spruce, Wash., Hoh River near.......... 34

Spurgeon Creek near Olympia, Wash...... 69

Squalicum Creek, Wash., discharge

measurement of................... 354

Stage-discharge relation, definition of 1 

Squire Creek near Darrington, Wash..... 157

Stanwood, Wash., Church Creek near..... 162

Startup, Wash., Sultan River near..... 129-131

Stehekin River at Stehekin, Wash....... 308

Steilacoom, Wash., Chambers Creek near. 82 

Stetattle Creek near Newhalem, Wash.... 172

Stevens Creek at Lake Stevens, Wash.... 143

Steverisvllle, Mont., Burnt Fork Creek

near............................. 248

Kootenai Creek near.................. 247

Stillaguamish River, North Fork, near

Arlington, Wash.................. 156

near Darrington, Wash.............. 155

South Fork, above Jim Creek, near

Arlington, Wash.................. 148

below Bender Creek, near Silverton,

Wash............................. 146

near Granite Falls, Wash........... 147

Stillaguamish River Basin, Wash., discharge measurements in........... 351

gaging-station records in...........146-162

Stillwater River near Whitefish, Mont.. 265 

Strawberry Creek, Wash., discharge

measurement of................... 350

Stuck River near Sumner, Wash.......... 92

Sullivan Creek near Hungry Horse, Mont. 263 

Sultan, Wash., McCoy Creek near........ 132

Sultan River near Startup, Wash....... 129-131

Sumas River near Sumas, Wash........... 193

Sumner, Wash., Stuck River near........ 92

Sunnyside Canal, Wash., discharge

measurements of.................. 356

Swan River near Bigfork, Mont.......... 268

Tacoma, Wash., Hylebos Creek near...... 94

Tahuya River near Belfair, Wash........ 51

near Bremerton, Wash................. 50

Tahuya River Basin, Wash., gagingstation records in............... 50-53

Tampico, Wash., North Fork Ahtanum

Creek near....................... 345

South Fork Ahtanum Creek near........ 346

Tanwax Creek, Wash., discharge measurement of.......................... 349

near McKenna, Wash................... 80

Page 

Teanaway River near Cle Eluni, Wash..... 339

Terms, definition of................... 1-2

Thompson Falls Reservoir, Mont., contents of......................... 228

Thunder Creek near Newhalem, Wash...... 171

Tieton Canal, Wash., discharge measurements of......................... 356

Tieton Reservoir, Wash., contents of..335-336 

Tieton River at headworks of Tieton

Canal, near Naches, Wash......... 344

at Tieton Dam, near Naches, Wash..... 343

Tillicum, Wash., Clover Creek near..... 81

Tobotan Creek, Wash., discharge measurement of.......................... 349

Tolt, Wash., Griffin Creek near........ 138

Snoqualmie River near................ 134

Tolt River near...................... 139

Tolt River near Tolt, Wash............. 139

Tonasket, Wash., Okanogan River near... 305 

Tonasket Creek, Wash., discharge

measurement of................... 355

Trego, Mont., Fortine Creek near....... 212

Trinidad, Wash., Columbia River at.....3, 198

Trout Creek near Southern Cross, Mont.. 231 

Troy, Mont., Lake Creek at............. 213

Tumwater Creek, Wash., discharge

measurement of................... 348

Turlo Creek, Wash., discharge measurements of......................... 351

Twenty-Two Creek, Wash., discharge

measurement of................... 351

Twin Creek near Hungry Horse, Mont..... 261

Twisp, Wash., Methow River at.......... 307

Umtanum, Wash., Yaklma River at........ 332

Union, Wash., South Fork Skokomish

River near....................... 44

Union Gap Canal, Wash., discharge

measurements of.................. 356

Union River near Belfair, Wash......... 46

near Bremerton, Wash................. 45

Union River Basin, Wash., gaging-station records in.................. 45-46

Victor, Mont., Bear Creek near......... 246

Fred Burr Creek near................. 245

Wallace River at Gold Bar, Wash........ 126

Wapatox power canal, Wash., discharge

measurements of.................. 356

Warden, Wash., Crab Creek near......... 322

Wauna, Wash., Huge Creek near.......... 63

Wenatchee Lake near Plain, Wash........ 312

Wenatehee River at Peshastin, Wash..... 315

at Plain, Wash....................... 314

below Wenatchee Lake, Wash........... 313

gaging-station records in...........312-315

West Glacier, Mont., Middle Fork Flathead River near.................. 255

Whatcom Creek below hatchery, near

Bellingham, Wash................. 133

Whatcom Creek Basin, Wash., gagingstation record in................ 183

White River at Greenwater, Wash........ 39

near Buckley, Wash................... 91

Whitefish, Mont., Stillwater River near 265

Whitefish Creek near Kalispell, Mont... 266

Wickersham, Wash., Skookum Creek near.. 190

South Fork Nooksack River near....... 189

Wildcat Creek, Wash., discharge measurements of......................... 349

Wildcat Lake near Bremerton, Wash...... 60

Wlllapa River at Lebam, Wash ........... 16

near Wlllapa, Wash................... 17

Willapa River Basin, Wash., gagingstation records in............... 16-17

Wilson Creek, Wash., discharge measurements of......................... 355

Wisconsin Creek, Wash., discharge

measurement of................... 351

Wishkah River, Wash., dischsrge measurement of.......................... 347

Woodland Creek near Olympia, Wash...... 70

Woods Creek near Monroe, Wash.......... 133

Work, division of...................... 13

scope of............................. 1

Worthen Creek, Wash., discharge measurements of......................... 3^4
363

Page 

Wynoochee River at Oxbow, near Aberdeen,

Wash............................. 31

discharge measurements of............ 347

Yakima municipal diversion, Wash., discharge measurements of..........355-356

Yakima River at Cle Elum, Wash........ 331

at Kiona, Wash...................... 334

Page 

Yakima River at Umtanum, Wash. ......... 332

near Martin, Wash.................... 330

near Parker, Wash.................... 333

Yakima River Basin, Wash., discharge

measurements in.................355-356

gaging-station records in...........330-346

reservoirs in.......................335-336

Yelm irrigation ditch, Wash., discharge

measurements of.................. 349

o