Surface Water Smply 

of the United States 

1948

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 1122

Prepared in cooperation with the States 

of Idaho, Montana, and Washington and 

other agencies

copy ls PUBLIC PROPERTY ai* is not to

be removed from the official files. PRIVATf

POSSESSION IS UNLAWFUL (R. S. Sup. Vol. 2. pp. 380; 

Sec. 749}

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1951
UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, 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 Division under the 

direction of:

C. G. Paulsen____________________Chief Hydraulic Engineer 

J. V. B. Wells_________________Chief, Surface Water Branch 

B. J. Peterson_________________Chief, Annual Reports Section

District Engineers (Surface Water)

T. R. Newell_____________________________Bo'se, Idaho 

A. H. Tuttle____________________________Helena, Mont. 

F. M. Veatch___________________________Tacona, Wash.

m
CONTENTS

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

Nemah River Easln................................................................ 15

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

Wlllapa River Basin.............................................................. 16

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

Wlllapa River near Wlllapa, Wash............................................... 17

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

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

Little North River near Cosmopolis, Wash....................................... 19

Newskah Creek Basin.............................................................. 20

Newskah Creek near Aberdeen, Wash.............................................. 20

Charlies Creek Basin............................................................. 21

Charlies Creek near Aberdeen, Wash............................................. 21

Chehalls River Basin............................................................. 22

Chehalls River near Doty, Wash................................................. 22

Chehalls River near Grand Mound, Wash.......................................... 23

Chehalls River at South Elma, Wash............................................. 24

Elk Creek near Doty, Wash...................................................... 25

South Fork Chehalls River at Bol-stfort, Wash................................... 26

Newaukum River near Onalaska, Wash............................................. 27

Newaukum River near Chehalls, Wash............................................. 28

Skookumchuck River near Centralla, Wash......................................... 29

Lincoln Creek near Rochester, Wash......'....................................... 30

Black River at Little Rock, Wash............................................... 31

Rock Creek at Cedarville, Wash................................................. 32

Porter Creek at Porter, Wash................................................... 33

Cloquallum River at Elma, Wash................................................. 34

Satsop River near Satsop, Wash................................................. 35

Blngham Creek near Matlock, Wash.................................'.............. 36

Wynoochee River at Oxbow, near Aberdeen, Wash.................................. 37

Wynoochee River below Black Creek, near Montesano, Wash........................ 38

Humptulips River Basin........................................................... 39

Humptulips River near Humptulips, Wash......................................... 39

Quinault River Basin............................................................. 40

Quinault River at Quinault Lake, Wash.......................................... 40

Queets River Basin................................................'............... 41

Queets River near Clearwater, Wash.............................................. 41

Clearwater River near Clearwater, Wash......................................... 42

Hoh River Bas in.................................................................. 43

Hoh River near Spruce, Wash.................................................... 43

Ouillayute River Basin.........................................."................. 44

Soleduck River near Fairholm, Wash............................................. 44

Elwha River Basin................................................................ 45

Elwha River at McDonald Bridge, near Port Angeles, Wash........................ 45

Dungeness River Bas in............................................................ 46

Dungeness River near Sequim, Wash......... 1.................................... 46

Dosewallips River Basin........................................................... 47

Dosewallips River near Brinnon, Wash........................................... 47

Duckabush River Basin............................................................ 48

Duckabush River near Brinnon, Wash............................................. 48

Skokomish River Basin............................................................ 49

North Fork Skokomish River below Staircase Rapids, near Hoodsport, Warh........ 49

North Fork Skokomish River near Potlatch, Wash................................. 50

Skokomish River near Potlatch, Wash............................................ 51

South Fork Skokomish River near Potlatch, Wash................................. 52

South Fork Skokomish River near Union, Wash.................................... 53

Union River Basin................................................................ 54

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

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

Mission Creek Basin.............................................................. 56

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

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

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

Tahuya River Basin............................................................... 59

Tahuya River near Bremerton, Wash.............................................. 59

Tahuya River near Belfair, Wash................................................ 60
Gaging-statlo n re cords ContInued.

Pacific slope basins north of Columbia River Continued.

Tahuya River Basin Continued. Page

Gold Creek near Bremerton, Wash................................................ 61

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

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

Dewatto Creek Basin.............................................................. 63

Dewatto Creek near Dewatto, Wash............................................... 63

Dogfish Creek Basin.............................................................. 64

Dogfish Creek near Poulsbo, Wash............................................... 64

Chlco Creek Basin................................................................ 65

Kltsap Lake near Bremerton, Wash............................................... 65

Chlco Creek near Bremerton, Wash.....'.......................................... 66

Wildcat Lake near Bremerton, Wash.............................................. 67

Blackjack Creek Basin............................................................ 68

Blackjack Creek at Port Orchard, Wash.......................................... 68

Burley Creek Basin............................................................... 69

Burley Creek at Burley, Wash................................................... 69

Mlnter Creek Basin............................................................... 70

Huge Creek near Wauna, Wash.................................................... 70

Deschutes River Basin............................................................ 71

Deschutes River near Olympla, Wash............................................. 71

Nlsqually River Basin............................................................ 72

Nlsqually River near National, Wash............................................ 72

Alder Reservoir at Alder, Wash................................................. 73

Nlsqually River at La Grande, Wash....../...................................... 74

Nlsqually River near McKenna, Wash............................................. 75

Nlsqually River at McKenna, Wash............................................... 76

Mineral Creek near Mineral, Wash............................................... 77

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

Ohop Creek near Eatonvllie, Wash............................................... 79

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

Chambers Creek Basin............................................................. 81

Chambers Creek below Leach Creek, near Stellacoom, Wash........................ 81

Puyallup River Basin............................................................. 82

Puyallup River near Electron, Wash.............................................. 82

Puyallup River near Ortlng, Wash..........................'..................... 83

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

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

Kapowsln Creek near Kapowsln, Wash............................................. 86

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

White River at Greenwater, Wash................................................ 88

Mud Mountain Reservoir near Buckley, Wash...................................... 89

White River near Buckley, Wash................................................. 90

Stuck River near Sumner, Wash.................................................. 91

Greenwater River at Greenwater, Wash.......'.................................... 92

Clark Creek at Puyallup, Wash.................................................. 93

Duwamlsh River Basin............................................................. 94

Green River near Lester, Wash.................................................. 94

Green River near Palmer, Wash.................................................. 95

Green River near Black Diamond, 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 Rt ver 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 Landsberg, Wash................................................ 113

Rock Creek near Maple Valley, Wash............................................. 114

Hay Creek near Renton, Wash.................................................... 115

Issaquah Creek near Issaquah, Wash............................................. 116

Sammamlsh Lake near Redmond, Wash.............................................. 117

Sammamlsh River near Redmond, Wash............................................. 118

Sammamish River at Bothell, Wash............................................... 119

Bear Creek near Redmond, Wash.................................................. 120

Bear Creek at Redmond, Wash.................................................... 121

North Creek near Bothell, Wash................................................. 122

McAleer Creek near Bothell, Wash............................................... 123

Snohomlsh River Basin............................................................ 124

South Fork Skykomlsh River near Skykomlsh, Wash................................ 124

South Fork Skykomlsh River near Index, Wash.................................... 125

Skykomlsh River near Gold Bar, Wash............................................ 126

Snohomlsh River at Snohomlsh, Wash............................................. 127

Beckler River near Skykomlsh, Wash............................................. 128

North Fork Skykomlsh River at Index, Wash...................................... 129

Wallace River at Gold Bar, Wash................................................ 130

Olney Creek near Gold Bar, Wash................................................ 131
CONTENTS VII

Gaglng-statlon records Continued.

Pacific slope basins north of Columbia River Continued.

Snohomish River Basin Continued. Page

Sultan River near Startup, Wash............................................... 132

McCoy Creek near Sultan, Wash................................................. 133

Woods Creek near Monroe, Wash................................................. 134

Roeslger Creek near Machlas, Wash............................................. 135

Snoqualmle River near Tolt, Wash.............................................. 136

North Fork Snoqualmle River near Snoqualmle Falls, Wash....................... 137

South Fork Snoqualmle River at North Bend, Wash............................... 138

Raging River near Fall City, Wash............................................. 139

Patterson Creek near Fall City, Wash-.......................................... 140

Griffin Creek near Tolt, Wash................................................. 141

Tolt River near Tolt, Wash...........................................'......... 142

Cherry Creek near Duvall, Wash................................................ 143

Pllchuck River near Granite Falls, Wash....................................... 144

Little Pllchuck Creek near Lake Stevens, Wash................................. 145

Lake Stevens at Lake Stevens, Wash............................................ 146

Stevens Creek at Lake Stevens, Wash........................................... 147

Dubuque Creek near Lake Stevens, Wash......................................... 148

Wood Creek near Everett, Wash................................................. 149

Qullceda Creek near Marysvllle, Wash.......................................... 150

Stlllaguamlsh River Basin....................................................... 151

South Fork Stlllaguamlsh River near Granite Falls, Wash....................... 151

South Fork Stlllaguamlsh River above Jim Creek, near Arlington, Wash.......... 152

Jim Creek near Oso, Wash...................................................... 153

-Jim Creek near Arlington, Wash................................................ 154

North Fork Stlllaguamlsh River near Arlington, Wash........................... 155

Skaglt River Basin.............................................................. 156

Skaglt River near Hope, British Columbia...................................... 156

Ross Reservoir near Newhalem, Wash............................................ 157

Skaglt River at Newhalem, Wash................................................ 158

Skaglt River at Marblemount, Wash............................................. 159

Skaglt River near Concrete, Wash.............................................. 160

Skaglt Plver near Mount Vernon, Wash.......................................... 161

Reservoirs In Skaglt River Basin, Wash........................................ 162

Lightning Creek near Newhalem, Wash........................................... 163

Beaver Creek near Newhalem, Wash.............................................. 164

Ruby Creek near Newhalem, Wash................................................ 165

Granite Creek near Newhalem, Wash............................................. 166

Thunder Creek near Newhalem, Wash............................................. 167

Stetattle Creek near Newhalem, Wash........................................... 168

Bacon Creek near Marblemount, Wash............................................ 169

Cascade River at Marblemount, Wash............................................ 170

Sauk River above Whltechuck River, near Darrlngton, Wash...................... 171

Sauk River near Sauk, Wash.................................................... 172

Sulattle River near Mansford, Wash............................................ 173

Baker River at Concrete, Wash................................................. 174

Flnney Creek near Concrete, Wash.............................................. 175

Alder Creek near Hamilton, Wash............................................... 176

Day Creek near Lyman, Wash.................................................... 177

Coal Creek near Sedro Woolley, Wash........................................... 178

East Fork Nookachamps Creek near Clear Lake, Wash............................. 179

Samlsh River Basin.............................................................. 180

Samlsh River near Burlington, Wash............................................ 180

Friday Creek near Burlington, Wash............................................ 181

Whatcom Creek Basin..................................i.......................... 182

Whatcom Creek below hatchery, near Selllngham, Wash........................... 182

Austin Creek near Belllngham, Wash............................................ 183

Squallcum Creek Basin........................................................... 183

Squallcum Creek at Belllngham, Wash........................................... 183

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

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

Nooksack River at Demlng, Wash................................................ 185

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

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

Coal Creek near Kendall, Wash................................................. 187

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

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

Skookum Creek near Wlckersham, Wash........................................... 190

Anderson Creek at Goshen, Wash........................:....................... 190

Flshtrap Creek at Lynden, Wash................................................ 191

Bertrand Creek near Lynden, Wash.............................................. 191

Tenmlle Creek near Ferndale, Wash............................................. 192

Dakota Creek Basin.............................................................. 193

Dakota Creek near Blalne, Wash................................................ 193

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

Sumas Rlver near Sumas, Wash.................................................. 193

Saar Creek near Sumas, Wash.................................................... 194

Upper Columbia River Basin........................................................ 195

Columbia River main stem........................................................ 195

Columbia River at Blrchbank, British Columbia................................. 195

Columbia River at International boundary...................................... 196

Franklin D. Roosevelt Lake at Grand Coulee Dam, Wash.......................... 197

Columbia River at Grand Coulee Dam, Wash...................................... 198

Columbia River at Trinidad, Wash.............................................. 199

Kootenal River Basin............................................................ 200

Kootenay River at Newgate, British Columbia................................... 200
VIII CONTENTS

Gaging-station records Continued.

Upper Columbia River Basin Continued.

Kootenal River Basin Continued. Page

Kootenal River at Llbby, Mont................................................ 201

Kootenal River.at Leonla, Idaho.............................................. 202

Kootenal River at Boom Camp, near Bonners Ferry, Idaho....................... 203

Kootenal River at Bonners Ferry, Idaho....................................... 204

Kootenal River near Bonners Ferry, Idaho..................................... 206

Kootenal River at Klockmann Ranch, near Bonners Ferry. Idaho................. 207

Kootenal River near Copeland, Idaho.......................................... 208

Kootenal River at Forth ill, Idaho............................................ 210

Kootenay Lake at Kuskonook, British Columbia................................. 212

Fortlne cVeek near Trego, Mont............................................... 213

Lake Creek at Troy, Mont..................................................... 214

Boulder Creek near Leonla, Idaho............................................. 215

Moyle River at Eastport, Idaho............................................... 216

Moyle River at Elleen, Idaho................................................. 217

Deep Creek at Moravia, Idaho.................................................. 218

Long Canyon Creek near Porthlll, Idaho....................................... 219

Smith Creek near Porthlll, Idaho............................................. 220

Boundary Creek near Porthlll, Idaho.......................................... 221

Pend Oreille River Basin....................................................... 222

Clark Fork above Mlssoula, Mont.............................................. 222

Clark Fork below Mlssoula, Mont.............................................. 223

Clark Fork at Tarklo, Mont................................................... 224

Clark Fork at St. Regls, Mont................................................ 225

Clark Fork near Plains, Mont................................................. 226

Clark Fork near Heron, Mont.................................................. 227

Pend Oreille lake at Hope, Idaho............................................. 228

Pend Oreille River below Z Canyon, near Metaline Falls, Wash................. 229

Smaller reservoirs In Pend Oreille River Basin, Mont......................... 230

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

Flint Creek at Maxville, Mont................................................ 232

Flint Creek near Maxville, Mont.............................................. 233

Flint Creek near Drummond, Mont.............................................. 234

Trout Creek above main canal, near Phllipsburg, Mont......................... 235

Trout Creek near Southern Cross, Mont........................................ 236

Boulder Creek at Maxville, Mont.............................................. 237

Middle Fork Rock Creek near Phllipsburg, Mont................................ 238

Blackfoot River near Helmville, Mont......................................... 239

Blackfoot River near Ovando, Mont............................................ 240

Blackfoot River near Bonrier, Mont............................................ 241

Nevada Creek above reservoir, near Finn, Mont................................ 242

Nevada Creek near Helmville, Mont............................................ 243

West Fork Bltterroot River near Conner, Mont................................. 244

Bltterroot River near Darby, Mont............................................ 245

East Fork Bltterroot River at Conner, Mont................................... 246

Rock Creek near Parby, Mont.................................................. 247

Rock Creek Canal near Darby, Mont............................................ 248

Blodgett Creek near Corvallis, Mont.......................................... 249

Fred Purr Creek near Victor, Mont............................................ 250

Bear Creek near Victor, Mont................................................. 251

Burnt Fork Creek near Stevensville, Mont..................................... 252

Flathead River at Flathead, British Columbia................................. 253

Flathead River near Columbia Falls, Mont..................................... 254

Flathead River at Columbia Falls, Mont.."...'.................................. 255

Flathead Lake at Somers, Mont................................................ 256

Flathead River near Poison, Mont..........................................^.. 257

Middle Fork Flathead River at Essex, Mont.................................... 258

Middle Fork Flathead River near West Glacier, Mont........................... 259

Bear Creek near Essex, Mont.................................................. 260

Skyland Creek near Essex, Mont......................... 1..................... 261

South Fork Flathead River near Columbia Falls, Mont.......................... 262

Stlllwater River near WhitefIsh, Mont........................................ 263

Whltefish Creek near Kalispell, Mont......................................... 264

Ashley Creek near Kalispell, Mont............................................ 265

Swan River near Bigfork, Mont................................................ 266

Priest Lake at outlet, near Coolin, Idaho.................................... 267

Priest River at outlet of Priest Lake, near Coolin, Idaho.................... 268

Priest River near Priest River, Idaho........................................ 269

Kettle River Basin............................................................. 270

Kettle River near Ferry, Wash................................................ 270

Kettle River near Laurier, Wash.............................................. 271

Myers Creek near Myncaster, British Columbia................................. 272

Colville River Basin........................................................... 273

Colvllle River at Kettle Falls, Wash......................................... 273

Mill Creek near Colville, Wash............................................... 274

Sppkane River Basin............................................................ 275

Coeur d'Alene River near Prichard, Idaho..................................... 275

Coeur d'Alene River at Enavllle, Idaho....................................... 276

Coeur d'Alene River near Cataldo, Idaho...................................... 277

Coeur d'Alene Lake at Coeur d'Alene, Idaho................................... 278

Spokane River at Post Falls, Idaho........................................... 279

Spokane River at Greenacres, Wash............................................ 280

Spokane River below Trent Bridge, near Spokane, Wash......................... 281

Spokane River at Spokane, Wash............................................... 282

Spokane River below Nine-Mile Dam, near Spokane, Wash........................ 283

Spokane River at Long Lake, Wash............................................. 284
CONTENTS

Qaging-station records Continued. 

Upper Columbia River Basin Continued. 

Spokane River Basin Continued.

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

St. Maries Fiver at Lotus, Idaho ..................................

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

Hayden Creek near Hayden Lake, Idaho..............................

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

Hayden Lake Irrigation District diversion near Hayden Lake, Idaho, 

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

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

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

Little Spokane River at Scotia, Wash..............................

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

Little Spokane River at Milan, Wash...............................

Little Spokane River at Chattaroy, Wash...........................

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

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

Wethey Creek near Deer Park, Wash.................................

Deep Creek at Colbert, Wash.

Okanagan River at Okanagan Falls, British Columbia.

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

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

Okanogan River near Tonasket, Wash.....

,Similkameen River near Nighthawk, Wash. 

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

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

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

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

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

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

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

Wenatchee Rivsr Basin....................

Wenatchee River below Wenatchee Lake, VJash...................

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

Wenatchee River at Peshastin, VJash...........................

Chiwawa River near Plain, Wash...............................

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

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

Crab Creek at Irbv, Wash.....................................

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

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

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

Crab Creek near Symrna, Wash.................................

Park Lake near Coulee Citv, Wash.............................

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

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

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

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

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

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

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

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

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

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

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

_Reservoirs in Yakima River Basin.............................

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

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

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

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

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

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

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

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

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

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

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

Index..............................................................

ILLUSTRATION

Page 

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

well; B, East cable tower.............................................. 2
SURFACE WATER SUPPLY OP PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLUMBIA RIVER

BASIN, 1948

SCOPE OP 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, 1948. 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 11,370 gaging stations 

1n the 48 States and also at many in the Territories of Alaska and Hawaii. In July 1948, 

5,960 gaging stations,-including those in Hawaii, 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 acknowledged 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 other terms used 

nerein are defined as follows:

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

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

whose average velocity is 1 foot per second.

"Second-feet per square mile" is the average number of cubic feet of wfter 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 surfsce. 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 tfc« 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-day11 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.

"Stage-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 gagi that determines the stage-discharge relation at the gage. This feature may be a nafiral section, 

a reach of the channel, or an artificial structure.

1
2 SURFACE WATER SUPPLY, 1948, PART 12

"Contents" is a term applied to the volume of water in a reservoir. It is computed on 

the basis of a level pool and does not include bank storage unless otherwise indicated.

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-stage 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 measureirent 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 the "shifting-control method," in which correction factors based on individual discharge measurements and notes By engineers and observers are used In applying the 

gage heights to the rating tables. 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 daily 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 the 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 some stations 

the stage-dlscnarge relation is affected by changing stage, and for them th*j 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 in the usual manner. Discharge for periods of ice effect is computed on the basis of the gage-height record and 

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

comparable records of discharge for stations in the same or nearby basins. For those 

stations at which the stage-discharge relation Is 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 th.^s 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 daily discharge of
A. COLUMBIA RIVER AT TRINIDAD, WASH. 

Recording-gage nhelter and stilling well.

B. COLUMBIA RIVER AT TRINIDAD, WASH. 

East cable tower.

FIGURE ]. GAGING-STATION STRUCTURES.
4 SURFACE WATER SUPPLY, 1948. 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 wh.ich the daily 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 ststion, 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 have little significance. 

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

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

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

crest stage, obtained by use of a water-stage recorder 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 sre 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 dally, 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; and (P) that only peak discharges were revised. If the drainage area 

has been revised, the report in which the revised figure was first published Is given. It 

should be noted that for all stations for which 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 dally mean gage height may not 

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

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

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

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

equipped with nonrecording gages, the table of daily discharge gives the discharge
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" fives the sum 

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

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

surface was at crest stage. Likewise, in the column headed "Minimum" the ouantlty 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 base are given. The 

base discharge, which Is given in parentheses, is selected so that an averrge 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 regulati&n 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 the 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 runoff 

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, 1948, PART 12

Many gaging stations on streams in the irrigated areas of the United States are situated 

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

not 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).

C. 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., 411 Grand Theater Building.

Augusta, Maine, 420 Statehouse.

Eaton Rouge, La., 538 Florida 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, 259U Vest Hardin St., Ohio State University.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 311 West Washington Street.

Jackson, Miss., 208 Millsaps Building.

Knoxville, Tenn., 337 Post Office Building.

Louisville, Ky., 531 Federal Building.

Madison, Wis., 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., f,eneral Services Administration Building.
PUBLICATIONS

West of the Mississippi River:

Austin, Tex., 302 West Fifteenth Street.

Bismarck, N. Dak., 7 Eltinge Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., 476 New Customhouse.

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.

Lincoln, Nebr., 510 Rudge-Guenzel Building.

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

Oklahoma City, Okla., 203 Council 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., 702 Appraisers Building.

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

Tacoma, Wash., 207 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 pablishsc" in the reports 

listed below. In many of these reports records for years earlier than these indicated 

have been included for some streams.

Stream-flow data for the years 1884-19O1, in reports of the Geological Survey 

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

Report

10th A, pt. 2 

llth A, pt. 2

13th A, pt. 3

B 131........ 

16th A, pt. 2

W 11 . .

18th A, pt. 4 

W 15.........

19th A, pt. 4

20th A, pt. 4

W 35 to 39...

W 47 to 52...

22d A, pt. 4.

W 65, 66..... 

W 75.........

Character of data

Descriptive information only. 

Monthly discharge and descriptive information. ...............

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

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

Descriptive information only.

monthly discharge.

Descriptions, measurements ratings, and monthly discharge... 

Descriptions, measurements and gage heights of streams east 

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

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

Descriptions, measurements, ratings, and monthly discharge.

the Mississippi River, and Missouri River and tributaries.

the Mississippi River, except Missouri River and tributaries .

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

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

year

1884 to September 1890.

1884-92.

1893-94.

1895-96. 

1897.

1897.

1899.

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 y^ars during 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 thos<5 years.

939922 O - 51 - 2
Numbers of water-supply papers containing results of stream measurements, 

Year

1699 a..................

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

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

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

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

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

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

1917................ .. .

1918

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

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

1 GOT

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

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

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

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

1932......... ...........

1933... .................

1934. ...................

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

1 936 ..........:......... 

1937.. ..................

1938......... ...........

1939. ...................

1940....................

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

1942............ ........

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

Z946. ...................

1948... .................

1 ...... ....... jg 

47, h48

65, 75

82

97

0165, p!66, q!67

0201, p202, qZ03

241

261

281 

301

321

351

381

401

451

501

521 

541

581

601

641

661

681

696

711 

726

741

781

801

891

921

1031

1051

1111

b3S, 36 

48

65, 75

b82, 83

b97, 98

q!Z6, 127 

q!67, 168

q203, 204

242

262

282 

302

322

382

402 

432

452

502

522

582

602

642

662

682

697

712 

727

782

802

892

9ZZ

1032

105Z

1112

3

36

48, 149

65, 75

83

98

169

205

243

263

283 

303

323

353

383

403 

433

453

503

523

603

643

683

698

713

783

803

893

9Z3

QT*

1033

1053

1113

4

36

49

65, 75

m82, 83

97

170

206

244

264

284 

304

324

384

404

454

504

524

604

644

699

714 

729

784

8O4

894

924

1034

1054

1114

5

36 

49

k65, 66, 75

k83, 85

k98, 99, nlOO

207

265

285

325

385

405

455

505

525

605

625

700

715

785

805

895

925

1035

1055

1115

6

c36, 37

66, 75

84

99

266

286

326

386

406

456

506

526

606

626

701

716

786

806

896

926

1036

1056

1116

7

37

k83, 84

k93, 99

247

267

287 

307

327

38

40

457

50

52

60

627

70

71

78

80

89

92

103

105

1117

a Rating tables and index to WSP 35-39 e Mojave River only. J Loup, Platte, and 

contained in WSP 39. Monthly discharge f Kings and Kern Rivers and south Pacific slope. tributaries belo

for 1899 in Zlst Annual Report, part 4. g Rating tables and Index to WSP 47-52 k Tributaries of Mi

b James River only. contained in WSP 52. Monthly discharge m Lake Ontario and 

c Oallatin River. for 1900 in 22d Annual Report, part 4. Lawrence River p

d Oreen and Ounnison Rivers and Colorado h Schuylkill River to James River. n Hudson Bay only. 

River above Qunnison River. i Scioto River. o New England river
PUBLICATIONS

The records at most of the stations discussed in these reports extend over a series of 

years. Miscellaneous measurements at ir-any 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 1939, issued as Water-Supply 

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

suntnary 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 

e 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 of 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

STATE 

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

Mississippi. 

California, Water resources of, part 1, Stream measurements in Sacramento River Basin. 

California, Water resources of, part 2, Stream measurements in San 

Joaquin River Basin. 

California, Water resources of, part 3, Stream measurements in the Great 

Basin and Pacific Coast river basins.

California, southern, Surface water supply of Pacific slope basins in.... 

California, Surface water supply of minor San Francisco Bay, northern 

Pacific, and Great basins in.

Massachusetts, Hydrology of, Part 1, Summary of stream-flow and precipitation records.

DRAINAGE BASIS 

Colorado River (Ariz., Colo., H. Mex., Utah, Wyo.) and Its utilization...

Colorado River Basin (Arlz., Calif., Colo., Utah, Wyo.), Surface waters 

at base stations in. 

Colorado River Basin (Arlz., Calif., Nev., N. Hex., Utah), Surface waters 

at stations on tributaries in lower. 

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

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

Rio Grande Basin (Colo., N. Hex., Tex.). Water resources of ..............

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

River Basin. 

Sevler Lake Basin (Utah), Utilization of aurface water resources of......

Period

1895-19C3 

1887-1912 

1878-1912 

1891-1912

1894-19F7 

1695-19?7

1863-1945

1898-19r?

1888-19] 4

1891-19r8 

1888-19^8 

1898-19r8

1895- 19?0

1888-19] 3

1889-1937 

1890-1904

Water-Supply 

Paper

107 

298 

299 

300

636-E 

637-A

1105

870

395

918 

1049 

916

536

358

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.
SURFACE WATER SUPPLY, 1948, PART 12

State reports containing compilations of records of discharge

State

Connecticut - . .

Kansas. .......

Do.........

Kentucky. ..... 

Louisiana. ....

Minnesota. .... 

Missouri. ..... 

Do .........

Do .........

Nebraska. .....

Hew Hampshire . 

New Jersey. . . .

New Mexico .... 

North Carolina

North Dakota. .

Do ......... 

Do .........

Ohio. .........

Do.........

Do. ........

Period

1900-1927 

1912 33

1923 27

1873-1932

1895-1919

1924-28

1935 39

1910-20 

1903-38

1909-12 

1857-1926 

1927-39

1894-1914

1889-1922 

1892-1928

1888-1925 

1889-1923

1919-21

1882-1938 

1882-1944

1898-1921

1914-24

1936-41

Report

drology of southeastern Alabama.

Data on stream-gaging stations of 

Colorado. 1

vols. 1 and 2, Stream-flow data of 

Colorado . 

Bull. 44, Water resources of Connecticut...

and flood flow relating to Iowa streams..

resources of Iowa. 

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

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

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

Geol. Bull. 16, Surface water supply of 

Louisiana.

major streams In Maryland.

waters of Maryland and the Potomac 

River Basin. 

Water-resources Investigation of Minnesota. 

Vol. 20, 2d series, Water resources of 

Missouri. 

Vol. 26, 2d series; Surface waters of 

Missouri.

sources of Montana. 

1st hydrographic report ....................

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

Bull. 33, Surface water supply of New 

Jersey.

New Jersey.

New Jersey. 

Surface water supply of New Mexico. ........ 

Bull. 34, Discharge records of North 

Carolina streams.

Carolina streams. 2

Basin.

Basin.

River Basins 

Report to Governor of North Dakota on 

flood control. 

Surface water In North Dakota. ............. 

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

Bull. 73, Ohio stream flow, Part 1.........

records of Ohio.

flow-duration tables .

Oregon. 

Bull. 7, Water resources of the State of 

Oregon.

Oregon.

Oregon.

Bull. 1O, Water resources of the State of 

Oregon.

Issued by

Water Conservation Board, 

State engineer.

State Geological and Natural 

History Survey.

Kansas Water Commission.

State Board of Agriculture. 

Do.

Kentucky Geological Survey. 

Department of Conservation.

State Planning Commission and

Water Resources Commission.

and Water Resources. 

State Drainage Commission.

Missouri Bureau of Geology 

and Mines. 

Missouri Geological Survey 

and Water Resources .

ment Statior . 

Bureau of Water Power, Irrigation, and Drainage.

Public Service Commission. 

Department of Conservation 

and Development .

Do.

Office of the State Engineer. 

Department of Conservation 

and Development.

Do.

State chief engineer.

State Planning Board. 

State Water Conservation 

Commission. 

Engineering Ejoeriment Station, 

Ohio State Uiiverslty.

Division of Conservation 

and Natural Resources.

Ohio State Uiiversity. 

Office of the State Engineer.

Do.

Do.

1 Contains records of ye

2 Contains records of ma 

discharge.

arly discharge only.

ximurn and minimum daily, weekly, and monthly discharge and yearly mean
PUBLICATIONS

State reports containing compilations of records of discharge Continved

State

Pennsylvania. .

Rhode Island..

South Carolina

Tennessee. .... 

Do ......... 

Utah..........

Washington .... 

Wisconsin. ....

Period

1890-1911

1884-1946

1874-1924 

1920-30

1895 1927

1927 42

1878-1933 

1888-1914 

j 9I_4 _ 23

Report

.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. 40, Surface waters of Tennessee......

(Potomac, Rappahannock, and York River 

Basins).

(James River Basin).

(Roanoke and Chowan River Basins).

(Hew, Tennessee, and Big Sandy River 

Basins) . 

Bull. 5, Monthly and yearly summaries of 

hydrometric data . 

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

consin to Legislature on water powers.

Issued by

Water Supply Commission of 

Pennsylvania .

Waters .

South Carolina Research, 

Planning and Development 

Board. 

Department of Education.

Do.

mission.

Department of Conservation 

and Development. 

Railroad Commission of Wisconsin.

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 hyd'rologic information and analyses and compilations of data relating to earlier noteworthy floois. The following list gives the numbers and titles of these reports:

Water-Supply Tit-IP Paper lltle

88 The Passaic flood of 1902.

92 The Passaic flojd 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 Janaary 1916.

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

488 The floods in central Texas in September 1921.

520-G Soms floods in ths Rosky Mountain region.

636-C The New England flood of November 1927.

771 Floods in the United States, magnituda 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, 1937.

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 1938.

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.
12 SURFACE WATER SUPPLY, 1948, 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 

1947 to September 1948 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

Agency Creek. ......... 

Crow Creek, Middle. . . .

Flnley Creek. .........

Jocko River, North 

Fork. 

Jocko River, South 

Fork. 

LaRose Creek, North...

Marsh Creek, South. . . .

Reservation drain. ....

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

Toppenlsh Creek. ......

Yaklma River. ......... 

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

Location

Near Jocko, Mont .......

Above Pablofeeder 

canal, near Ronan, 

Mont.

do

Near Jacko, Mont. ......

Above diversion dam, 

near Jocko, Mont. 

Above Middle Fork, 

near Jocko, Mont . 

Above Pablofeeder 

canal, near Charlo, 

Mont.

do

Downstream from Dry 

Creek, near Toppenlsh, 

Wash. 

Near Satus, Wash. ...... 

Near Fort Slmcoe, Wash.

Near Alfalfa, Wash. ....

Easton, Wash. .......... 

Ellensburg, Wash.......

Period

1906-16 

1946-46* 

1939-46*

1939 46

1908-15 

1946-48*

1946-46 

1946*

1946-48* 

1939-46

1939-46

1939 

1939 

1912-46

1913-48

1932-46 

1909-46

1932-48 

1923-46 

1904, 

1910-15, 

1940-48 

1937-48*

Collected by

Office of Indian Affairs.

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

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

Office of Indian Affairs.

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

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

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

Bureau of Reclamation.... 

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

Remarks

tUnpubllahed 

since 1916. 

Unpublished

Do.

tUnpubllshed 

since 1915. 

tUnpubllshed 

since 1915. 

Unpublished

Unpublished

Do. 

Do. 

Do. 

Dq. 

tUnpubllshed 

since 1923. 

tUnpubllshed 

since 1924.

Unpublished. 

tUnpubllshed 

since 1924. 

Unpublished. 

Unpublished. 

tUnpubllshed 

since 1915.

Unpublished.

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

* Fragmentary.

Note.- Records of dally discharge for many canals and drains In Washington and Montana for 1946 

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, Art Carton, 

director, succeeded by F. A. Stewart, and C. J. Bartholet, consultant engineer 

for the department; State Department of Fisheries, Milo Moore, director; State 

Department of Game, D. W. Clarke, director; State Department of Highways, Clarence 

Shain, director; Washington State Capitol Committee, Gov. M. C. Wallgren, chairman; cities of Aberdeen, Bellingham, Bremerton, Cosmopolis, Everett, Seattle, 

and Tacoma; Intercounty River Improvement Commission; Pacific County Public 

Utilities District No. 2; and Pacific Skagit, and Whatcom Counties.
DIVISION OF WORK 13

Financial assistance was furnished by the Corps of Engineers, for the op3ration of four 

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

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

the United States Department of State 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 Dominion Water and Power 

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

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

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

agreement between the two 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 organizations: 

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 Cc.

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 follow?: In Idaho 

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

A. H. Tuttle; in Washington, F. M. Veatch.

The records were reviewed and the manuscript prepared for publication urder the direction of B. J. Peterson, chief, annual reports section.
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 SWij sec. 1, T. 10 N., R. 9 W. , 

J.-J miles upstream from Salmon Creek and 3j miles east of Naselle.

Drainage area.- 55 square miles.

Records available.- May 1929 to September 1948.

Average dlscharge.- 19 years,.417 second-feet.

Extremes.- Maximum discharge observed during year, 4,620 second-feet Jan. 1 (gage height, 

9.91) feet); minimum observed, 38 second feet Aug. 12, 13 (gage height, 1.94 feet).

1929-48: Maximum discharge observed, 10,400 second-feet Jan. 22, 1935 (gage height, 

15.9 feet, "from floodmarks), from rating curve extended above 3,000 second-feet; minimum observed, 22 second-feet Oct. 6, 7, 1929; minimum gage height observed, 1.72 feet 

Aug. 29, 1935.

Remarks.- Records good. Gage read twice daily. No diversion or regulation. 

Revisions.- W 932: Drainage area.

Rating table, water year 1947-48 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 1-2)

1.9 32 3.0 330 5.0 1,220 

2.1 69 3.5 500 6.0 1,820 

2.3 120 4.0 715 7.0 2,450 

2.6 204 4.5 960 8.0 3,150

Discharge, in second-feet, water year October 1947 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.

76 

810 

1,280 

648 

424

323 

275 

387 

625 

500

560 

465 

417 

343 

1,250

1,340 

1,940 

2,450 

2,380 

1,430

985 

738 

715 

560 

482

448 

407 

448 

431 

500 

1,040

Nov.

1,280 

985 

860 

760 

648

785 

2,060 

2,180 

1,370 

1,220

1,010 

810 

835 

738 

1,250

935 

935 

885 

738 

625

540 

448 

417 

356 

330

310 

271 

253 

231 

231

Dec.

253 

228 

353 

317 

284

265 

278 

271 

284 

278

304 

314 

560 

643 

602

602 

1,110 

1,700 

1,580 

1,040

810 

692 

1,640 

1,940 

1,250

935 

935 

985 

910 

760 

715

Jan.

2,870 

3,150 

2,000 

1,880 

1,370

1,370 

1,220 

1,160 

960 

1,280

1,190 

985 

760 

625 

520

431 

383 

350 

304 

278

253 

234 

228 

213 

195

181 

172 

164 

164 

172 

155

Feb.

144 

136 

136 

153 

136

123 

161 

760 

602

465

397 

350 

314 

500 

1,140

935 

1,160 

1,080 

760 

648

1,250 

2,180 

1,640 

1,080 

985

1,580 

1,250 

910 

715

Hnn+h SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Ha

lendar year 1947 ......

nary . . . 

h

4,677 

4,296 

2,843

152,418

,

. - .

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

5,217 

1,690 

5,174 

3,451 

3,879 

3,057 

1,728 

1,554 

5,269

ter year 1947-48 .......... 172,835

Mar.

625 

520 

448 

440 

363

330 

304 

333 

287 

265

250

234 

225 

213 

204

198 

184 

246 

246 

297

1,700 

2,380 

1,220 

835 

625

500 

424 

373 

340 

314 

291

Maximum

2,450 

2,180 

1,940

3,660

3,150 

2,130 

2,380 

835 

1,340 

158 

79 

104 

482

3,150

Apr.

278 

281 

287 

297 

323

400 

417 

377 

448

648

580 

500 

500 

448

421

390 

370 

350 

310 

284

300 

448 

692 

760 

835

715 

560 

465 

407 

360

May

323 

297 

540 

540 

760

1,340 

985 

692 

540

465

394 

407 

448 

738 

715

560 

482 

414 

370 

343

307

278 

253 

234

216

204 

192 

231 

234 

210 

167

June

158 

147 

142 

134

131

125 

117 

110 

104 

104

104 

104 

99 

99 

97

92 

84 

84 

82 

104

131 

102 

36 

82 

79

79 

74 

69 

69

65

Minimum Mean

76 796 

231 810 

228 737

40 418

155 813 

123 748 

184 489 

278 448 

167 448 

65 102 

42 55.7 

38 50.1 

42 176

38 472

1948

July

65 

60 

58 

58 

65

79 

76 

79 

69

60

56 

54 

54 

51 

51

51 

47 

47 

49 

51

49 

47 

44 

44 

44

44 

69 

62 

56 

47 

42

Per 

square 

mile

14.5 

14.7 

13.4

7.60

14.8 

13.6 

8.89 

8.15 

8.15 

1.8E 

1.01 

.911 

3.20

8.58

Aug.

42 

42 

42 

42 

41

54 

47 

42 

41 

41

40 

38 

40 

41 

44

47 

47 

47 

44 

41

41 

44 

42 

51 

62

58 

69 

104 

74 

74 

72

Sept.

62 

69 

102 

82 

72

60 

56 

56 

51 

51

47 

44 

42 

47 

424

228 

155 

123 

110 

102

125 

390 

417

482 

314

259 

397 

343 

300 

259

Runoff

Inches

16.69

16.43 

15.45

103.07

17.05 

14.67 

10.26 

9.10 

9.38 

2.07 

1.17 

1.05 

3.56

116.88

Ac re- feet

48,950 

48,190 

45,310

302,300

50,020 

43,020 

30,100 

26,680 

27,530 

6,060 

3,430 

3,080 

10,450

342,800
NEMAH RIVER BASIN 15

North Nemah River near South Bend, Wash.

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

N., H. 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 1948.

Extremes.- Maximum discharge during year, 1,180 second-feet Jan. 1 (gage-height, 7.00 

feet); minimum, 10.5 second-feet Aug. 12, 13, 23, Sept. 13, 14.

1946-48: Maximum discharge, 1,550 second-feet Dec. 11, 1946 (gage height, 8.21 

feet); minimum, that of Aug. 12, 13, 23, Sept. 13, 14, 1948.

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

diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

225 

252 

108 

71

56 

47 

79 

144

113

108 

88 

75 

62 

324

280 

414 

455 

631 

370

238 

178 

166 

128 

116

104 

96 

120 

106 

129 

272

Nov.

325 

265 

223 

190 

179

248 

600 

512 

355

355

305 

238 

236 

208 

305

255 

265 

238 

199 

164

137 

114 

102 

90 

84

78 

72 

68 

62 

66

Dec.

66

68 

88 

74 

67

64 

74 

71 

73 

78

85 

79 

137 

145 

129

151 

246 

434 

405 

265

208 

167 

375 

415 

295

215 

242 

253 

230 

192 

239

Jan.

740 

740 

465 

435 

335

335 

315 

285 

247 

335

305 

242 

199 

167 

145

130 

120 

110 

102 

94

88 

85 

85 

83 

78

74 

72 

68 

72 

73 

67

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 194 

ary

1 ......

1 .........................

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

ter year 1947-48 ..........

Feb.

66

62 

64 

68 

64

59 

74 

285 

199 

162

132 

113 

100 

138 

234

221 

225 

208 

162 

190

395 

488 

355 

255 

294

425 

325 

238 

181

Secondfoot-days

5,56-9.5 

6,538 

5,630

37,899.0

6,691 

5,782 

4,249 

3,766 

3,852 

920.5 

512.0 

432.0 

926.0

44,868.0

Mar.

159 

138 

120 

107 

100

96 

94 

99

86 

82

79 

76 

74 

72 

72

68 

66 

80 

78

91

507 

617 

320 

215 

164

130 

111 

98 

88 

b4 

78

Maximum

631 

600 

434

910

740 

488 

617 

225 

345 

44 

23 

25 

92

740

Apr.

77 

80 

80 

102 

116

135 

125 

111 

149 

162

147 

137 

132 

117 

106

99

93 

86 

78 

73

89 

157 

206 

221 

225

186 

149 

124 

106 

93

May

84 

77 

171 

128 

242

345 

249 

183 

144 

119

100 

116 

159 

265 

208

167 

135 

111 

98 

91

78 

75 

67 

64

59

56 

53 

62 

52 

48 

46

Minimum

14.5 

62 

64

12.5

67 

59 

66 

73 

46 

19.5 

12.5 

11 

10.5

10.5

June

44 

43 

42 

41 

40

38 

37 

35 

34 

32

31 

30 

29 

30 

28

27 

26 

25 

24 

38

37 

29 

26 

24 

24

23 

23 

21 

20 

19.5

Mean

180 

218 

182

104

216 

199 

137 

126 

124 

30.7 

16.5 

13.9 

30.9

123

July

19 

19 

19 

19 

20

23 

23 

21 

18.5 

17.5

17 

16.5 

15.5 

15 

14.5

14 

14 

15 

17 

16.5

15 

14.5 

14 

13.5 

13

13.5 

18.5 

16.5 

14 

13 

12.5

Per 

square 

mile

10.0 

12.1 

10. 1

5.78

12.0 

11.1 

7.61 

7.00 

6.89 

1.71 

.917 

.772 

1.72

6.83

Aug.

12.5 

113 

13 

12.5 

13

15 

12 

11.5 

11.5 

11

11 

11 

12 

11.5 

13.5

13.5 

13.5 

13.5 

12 

11.5

13 

12 

11 

14 

16.5

15.5

25 

24 

18 

19 

16

Sept.

14 

20 

26 

18.5 

16

14 

13.5 

13 

12.5 

12

12 

11.5 

10.5 

13 

42

21 

15.5 

13.5 

13 

12.5

41 

81 

76 

60

44

44 

92 

68 

52 

44

Runoff

Inches

11.51 

13.51 

11.63

78.31

13.82 

11.95 

8.78 

7.78 

7.96 

1.90 

1.06 

.89 

1.91

9F.70

Acre-feet

11,050 

12,970 

11,170

75,180

13,270 

11,470 

8,430 

7,470 

7,640 

1,830 

1,020 

857 

1,840

89,020

Peak discharge (base, 93O sec. -ft.).- Oct. 19 (l a.m.) 940 sec. -ft.; Jan. 1 (7 p.m.) 1,180 sec.-

ft.; Mar. 21 [9 p.m.) 1,090 sec.-ft.

Note.- Shifting-control method used Oct. 20 to Dec. 31.
16 WILLAPA RIVER BASIN

Willapa River at Lebam, Wash.

Location.- Water-stage recorder, lat. 46°33'50", long. 123°33'50", in SW-j sec. 33, T. 13 

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

Drainage area.- 41.4 square miles.

Records available.- June to September 1948.

Extremes.- Maximum discharge during period, 109 second-feet Sept. 15 (gage height, 3.28 

FeefTf minimum, 4.8 second-feet Sept. 13 (gage height, 2.50"feet).

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

control, which are fair. No known diversion or regulation.

Discharge, in second feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

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 ..........................

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

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

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

The period. ..................

Feb.

Secondfoot-days

_

_

_

._

_

1,101

505

34L3

658.8

-

Mar.

Maximum

_

_

_

_

_

64

25

16

74

-

Apr. May

Minimum

_

_

_

_

_

19

11.5

8.4

4.8

-

June

a 64

a61

358

55

52

48

45

41

38

37

36

37

36

34

34

33

32

29

28

34

38

34

29

27

26

26

26-

24

21

19

Mean

_

_

_

»

^

36.7

16.3

11.0

22.0

-

July

18

18

18

18

20

25

24

22

20

18

16

16

16

15.5

15.5

14.5

13.5

13.5

14.5

15.5

15.5

13.5

13.5

12.5

11.5

11.5

18

17

15.5

13.5

11.5

Per 

square 

mile

_

_,

_

_

.

0.886

.394

.266

.531

-

Aug.

11

1

1

1

L

L

L.5

11.5

11

1 L

3.9

3.9

9.0

9.0

i

3.0

3.9

L 11

ii.s

n

K

i:

1.5

L.5

J.O

9.9

12 .5

3.9

3.9

9.0

i

1

IE

1]

12

).4

.5

.5

12.5

Sept.

9.0

9.0

13.5

11.5

9.0

7.8

7.8

7.2

6.6

6.0

5.4

5.4

4.8

7.8

74

41

25

17

14.5

12.5

14

46

56

50

37

34

39

33

29

26

Runoff

Imhes

.

-

-

_

_

0.99

.45

.31

.59

-

Ac re- feet

.

_

-

_

_

2,180

1,000

677

1,310

5,170

a No gage-height record; discharge computed on basis of records for North Nemah R'.ver near South 

Bend and North River near Raymond.

Note.- Shifting-control method used Aug. 1O to Sept. 3O.
17

Willapa River near Willapa, Wash.

Location.- Water-stage recorder, lat. 46°39'00", long. 123°38'40", in HW-f sec. 2, T. 13 

N., K. 8 W., just below Mill-Creek and 2£ miles southeast of Willapa. Prior to July 

28, 1948, at different datum.

Drainage area.- 130 square miles.

Records available.- August 1947 to September 1948 (incomplete).

Extremes.- 1947: Maximum discharge during period August to September, 201 second-feet 

Sept. 9 (gage height, 1.80 feet, datum then in use); minimum, 33 second-fest Aug. 28, 

Sept. 5, 6 [gage height, 0.87 foot, datum then in use).

1947-48: Maximum discharge recorded during water year, 1,710 second-fest Oct. 15 

(gage height, 6.21 feet, datum then -in use), from rating curve extended above 800 

second-feet; minimum recorded, 37 second-feet Sept. 11 (gage height, 3.23 feet, 

present datum).

Remarks.- Records good. No known diversion or regulation.

Discharge, In second-feet, 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

1947

Aug.

34 

34 

33 

34 

38 

45

Sept.

39 

34 

34 

34 

34

35 

74 

142 

176 

116

85

70 

62 

54 

52

50 

49 

47 

43 

42

41 

39 

38

36 

35

35 

35 

35 

42 

41

Month

August 26-31, 1947. 

September ..........

Wa

Goto 

Nove 

Dece

Ca

Jam) 

Febr 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

ter year

her 1-16, 1947 

mber

mber ......................

lendar year 

ary

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

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

Water year ..........

Secondfoot-days

218 

1,649

-

5,860

-

1,563 

3,383

-

1947-48

Oct.

39 

566 

792 

437 

278

208 

167 

196 

327 

275

340 

275 

232 

208 

739

781

Maximum

45 

176

-

792

-

79 

316

-

July

67 

59 

53 

49

Aug.

47 

46 

46 

47 

46

49 

48 

46 

45 

44

44 

44 

44 

45 

46

52 

52 

60 

52 

47

46 

52 

48 

46 

49

48 

52 

79 

62 

58 

73

Minimum

33 "34

-

39

-

44 

38

-

Sept.

58

53 

73 

67 

56

52 

48 

45 

43

41

40 

39 

38 

41 

316

214 

122 

93 

77 

70

79 

248 

299 

241 

176

146 

176 

162 

144 

126

Mean

36.3

55.0

-

366

-

50.4 

113

-

Per 

square 

mile

0.279 

.423

-

2.82

-

.388 

.869

-

Runoff

Inches

0.06 

.47

-

1.68

-

.45 

.97

-

Acre-feet

432 

3,270

-

11,620

-

3,100 

6,710

-
18 NORTH RIVER BASIN

North River near Raymond, Wash.

Location - Water-stage recorder, lat. 46°49', long. 123°51', In sec. 6, T. 15 H., R. 9 W. 

i-J- miles upstream from Salmon Creek and 10 miles northwest of Raymond.

Drainage area.- 219 square rnile^.

Records available.- August 1927 to September 1948.

Average discharge.- 21 years, 908 second-feet.

Extremes.- Maximum discharge during year, 5,800 second-feet Mar. 23 (gage height, 6.58 

feet) ; minimum, 51 second-feet Oct. 1 (gage height, 1.29 feet).

1927-48: 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 period of no gage-height record, which are 

fair. No diversion or regulation.

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

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, in second-feet)

-3rT3 52 2.6 405 5.0 2,900 

1.5 83 3.0 640 5.5 3,750 

1.7 120 3.5 1,060 6.3 4,650 

2.0 190 4.0 1,550 6.5 5,600 

2.3 285 4.5 2,130

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

58 

590 

943 

970 

499

324 

257 

260 

340 

320

356 

328 

292 

260 

738

1,400 

2,000 

3,110 

4,840 

4,330

2,300 

1,800 

1,900 

1,500 

1,200

1,100 

1,000 

1,100 

950 

1,100 

1,600

Nov.

2,700 

2,200 

2,000 

1,900 

1,800

2,100 

4,400 

4,600 

3,000 

2,500

1,700 

1,200 

1,500 

1,500 

3,100

2,400 

2,200 

1,900 

1,450 

1,300

1,130 

988 

889 

800 

736

704 

656 

598

558 

534

Dec.

540 

564 

672 

760 

664

598 

605 

633 

672 

704

792 

8.72 

1,130 

1,660 

1,820

1,770 

2,340 

2,650 

2,980 

2,570

1,940 

1,660 

1,940 

3,070 

3,070

2,200 

2,200 

2,060 

1 , 940 

1,660 

1,600

Jan.

2,790 

5,030 

5,220 

4,840 

3,750

2,980 

2,730 

2,650 

2,500 

2,340

2,900 

2,730 

2,200 

1,770 

1,500

1,300 

1,120 

997 

898 

816

744 

688 

664

640 

584

534 

499 

477 

466 

482 

466

Feb.

435 

425 

415 

440 

504

460 

430 

970 

1,770 

1,770

1,350 

1,100 

952 

970 

1,500

2,200 

2,980 

3,240 

2,500 

1,880

2,200 

3,580 

4,290 

3,240 

2,500

3,160 

3,410 

2,570 

1,940

Month SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Hay 

June 

July 

Augu 

Sept

Ba

lendar year 1947 

ary

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

st ........................

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

37,815 

52,843 

48,336

14,642

57,305 

53,181 

42,654 

30,290 

34,952 

7,354 

3,466 

2,761 

6,843

ter year 1947-48 .......... 377,800

Mar

1,600 

1.4EO 

1,300 

1,100 

997

916 

872 

898 

889 

800

736 

688 

656 

626 

E91

558 

540 

633 

760 

872

2,460 

5,410 

5,410 

3,240 

2,000

1,550 

1,300 

1,110 

979 

889 

824

Maximum

4,840 

4,600

3,070

7,440

5,220 

4,290

5,410 

1,450 

3,160 

400 

188 

126 

664

5,410

Apr.

784 

824 

889 

872 

889

952

1,200 

1,120 

1,080 

1,350

1,300 

1,220 

1,130 

1,020 

934

880 

872 

848 

776

696

664 

776

1,110 

1,300 

1,450

1,350 

1,200 

1,030 

934 

840

May

744 

688 

1,100

1,300 

1,820

3,160 

2,820 

1,880 

1,450 

1,200

1,020 

1,010 

1,450 

1,720 

1,660

1,400 

1,250 

1,080 

952 

872

792 

720 

648 

584 

540

510 

499 

546 

598 

499 

440

Minimum

58 

534 

540

48

466 

415 

540 

664 

440 

142 

83 

73 

61

58

June

400 

374 

356 

336 

324

313 

299 

282 

264 

250

250 

241 

244 

241

250

238 

217 

208 

202 

223

238 

241 

208 

188 

175

168 

168 

162 

152 

142

Mean

1 , 220 

1,761 

1,559

862

1,849 

1,834 

1,376 

1,010 

1,127 

245 

112 

89.1 

228

1,032

Peak discharge (base, 4,OOO sec. -ft.).- Oct. 19 (1 a.m.) 5,220 sec. -ft.

July

136 

128 

124 

124 

124

130 

185 

188 

165 

140

126 

114 

110 

105 

101

97 

94 

92 

92 

92

92 

94 

96 

87 

83

85 

92 

90 

99 

94 

87

Per 

square 

mile

5.57 

8.04 

7.12

3.94

8.44 

8.37 

6.28 

4.61 

5.15 

1.12 

.511 

.407 

1.04

4.71

Aug.

81 

78 

75 

77 

78

88 

87 

90 

83 

78

77 

73

80 

83 

81

81 

83 

94 

109 

97

87 

81 

78 

85 

85

87 

107 

116 

124 

126 

112

Sept.

99 

110 

138 

120 

118

101 

87 

80 

73

70

69 

64 

61 

69 

270

336 

271 

170 

136

116

172 

310

570 

466 

320

332 

656 

664 

455 

340

Runoff

Inches Acre feet

6.42 75,006 

8.97 104,800 

S.iil 95,870

E3.41 624,000

9.73 113,700 

9.03 105,500 

7.24 84,600 

5.14 60,080 

5.94 69,330 

1.25 14,590 

.59 6,870 

.47 5,480 

1.16 13,570

64.15 749,400

; Jan. 2-3 (8 p.m. to

Elokomin River near Cathlamet.
NORTH RIVER BASIN 19 

Little North River near Cosmopolis, Wash.

Location.- Water-stage recorder, lat. 46°54'30", long. 123°43'00", in NW^NW^- sec. 5, T. 

lb N., R. 8 W., If miles upstream from mouth and 4f miles southeast of Cosmopolis.

Drainage area.- 20.3 square miles.

Records available.- November 1945 to September 1948.

Extremes.- Maximum discharge during year, 808 second-feet Mar. 22 (gage height, 9.40 

feet); minimum, 2.4 second-feet Sept. 2.

1945-48: Maximum discharge, 1,010 second-feet Jan. 26, 1947 (gage height, 11.00 

feet); minimum, 1.8 second-feet Sept. 11, 12, 1946 (gage height, 1.86 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.

g table, water year 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

1.9 

2.1 

2.3 

2.5

2.6

6.0

9.9

15

2.7 

3.0 

3.3 

3.6

4.0 

4.5 

5.0 

5.5

129

189

249

309

6.0 373

7.0 501

8.0 629

9.0 757

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.4

51

80

48

30

23

19

20

30

30

32

30

26

23

89

177

f314

f434

706

345

183

118

103

84

72

67

59

64

63

103

243

Nov.

360

243

165

130

115

119

215

373

249

177

133

107

99

97

159

177

151

129

109

93

80

70

62

57

52

52

47

43

40

39

-

Dec.

41

40

58

59

53

51

51

50

50

50

56

58

94

177

165

165

315

321

297

183

113

82

196

398

273

153

143

159

149

105

90

Jan.

330

641

450

347

243

201

189

189

151

171

213

189

142

107

85

71

62

56

51

47

44

43

42

40

37

34

32

30

30

30

28

Month

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

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

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

Calgndar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

26

25

25

30

30

27

27

103

131

101

83

71

63

67

142

183

303

261

183

145

241

f495

360

225

201

334

291

207

148

-

Secondfoot-days

3 , 669 . 4

3 942

4*195

26,309.7

4 3 25

4*528

3,209

2 , 286

3,118

471.2

200.0

122.9

559.4

30,625.9

Mar.

123

101

84

72

66

59

55

58

52

47

45

42

40

39

37

36

34

43

52

64

f298

f705

f336

183

129

9880 T

68

60

54

49

Maximum

706

373

398

882

641

495

705

350

27

14

5.1

74

706

Apr.

47

52

57

57

57

61

79

72

70

98

110

100

97

86

79

73

72

67

61

56

52

63

83

98

118

105

90

84

76

66

May

60

55

140

120

180

350

230

160

130

100

75

85

150

230

170

130

100

84

70

58

52

46

43

42

39

37

35

41

41

35

30

Minimum

3.4

40

2.8

28

25

34

47

30

3 9

2.9

2.9

2.9

June

27

25

24

22

22

20

19

18

18

17

16

16

16

16

17

15

14

13

12

15

16

14

12

11

10

10

9.9

9.5

3.8

8.0

Mean

118

131

135

72.1

140

156

104

76.2

101

15.7

6.45

3.96

18.6

83.7

July

7.4

6.9

6.7

6.7

7.1

8.0

12

14

11

8.6

7.4

6.9

6.4

6.0

5.6

5.3

5. 1

5.1

4.9

4.9

6.2

5.3

4.6

4.4

3.9

3.9

5.5

5.6

5.8

4.9

3.9

Per 

square 

mile

5 81

6J45

6.65

3.55

6.90

7 . 68

5.12

3.75

4.98

.773

. 3 18

. 195

.916

4.12

Aug.

3.7

3.6

3.2

3.1

3.6

4.6

4.9

4.4

3.9

3.2

3.4

2.9

4.4

4.6

4.4

3.9

4.0

4.9

5.1

4.2

3.7

3.4

3.1

3.7

3.9

4.6

4.9

4.2

3.4

4.0

4.0

Sept.

2.9

3.7

7.8

9.9

8.4

6.7

5.6

4.9

4.6

4.0

3.9

3.4

3.2

4.4

26

32

19

14

12

11

13

27

35

32

25

27

74

61

43

35

Runoff

Inches Acre-feet

6 72 7 280

7 . 22 7,820

7.69 8,320

48.20 52,200

7.92 8,580

8.30 8,980

5. 88 6,360

4.19 4,530

5.71 6,180

.37 397

. 23 244

1.02 1,110

56.11 60,740

Peak discharge (base, 700 sec.-ft.).- Oct. 19 (3:30 a.m.) 782 sec.-ft.; Jan. 2 (5 a.m.) 705 se 

ft.; Mar. 22 (5:30 a.m.) 808 sec.-ft.

f_Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Apr. 27 to May 23; discharge computed on basis of recorded range in 

stage and records for North Nemah River near South Bend and Charlies Creek near Aberdeen. Shiftingcontrol method used Dee. 17 to Jan. 22, June 8 to Sept. 16.
20 NEWSKAH CREEK BASIN

"" New'skah Creek near Aberdeen Wash.

Location.- Water-stage recorder, lat. 46°54'40", long. 123°49'20", in EE^SE^ sec. 32, T. 

IV N. , R. 9 W., 3-J miles upstream from moath and 4 miles south of Aberdeen.

Drainage area.- 8.0 square miles.

Records available.- October 1945 to September 1948.

Extremes.- Maximum discharge recorded during year, 544 second-feet Mar. 21 (gage height, 

a.bu reet), but may have been greater Oct. 19 when water-stage recorder was not operating; minimum, 3.5 second-feet Aug. 4, 5, 9-13.

1945-48: Maximum discharge recorded, that of Mar. 21, 1948; minimum, 1.6 secondfeet Sept. 9-12, 28, 1946 (gage height, 2.15 feet).

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are poor. No diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

5.4 

104 

92 

53 

34

26 

22 

37 

58 

45

44 

35 

31 

26 

f!57

118 

f!92 

f246 

f317 

141

89 

66 

66 

49 

47

41 

36 

45 

41 

82 

147

Nov.

136 

98 

73 

65 

57

73 

161 

161 

105 

94

73 

59 

59 

64 

187

86 

101 

73 

6O 

50

41 

36

31 

28 

26

26 

23 

20 

19.5 

21

Dec.

24 

22 

37 

32 

29

27 

30 

28 

31

33

37 

36 

107 

109

89

94 

146 

166

136 

146

129 

66 

186 

182 

122

88 

163 

141 

107 

82 

98

Jan.

f296 

249 

182 

182 

127

119 

116 

103 

88 

1Q2

105 

89 

72 

58 

47

4C 

35 

30 

28 

25

24 

23 

24 

21 

18.5

16.5 

16 

15 

15.5 

16 

14.5

Feb.

14.5 

13 

14.5 

17.5 

15.5

13.5 

21 

114 

76 

54

43 

36 

31 

52 

90

96 

128 

110 

77 

76

161 

197 

126 

90 

117

166 

130 

94 

71

Month SecondMontn foot-days

Octo 

Nove 

Dece

Ca

Janv 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augi 

Sept

Wa

lendar year 194 

ary

1

1

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

2,492.4 

2,106.5 

^,723

1,896,8

2,297.0 

2,244,5 

L, 594,0 

1,393

'282,9 

170,6 

138.4 

656.6

ter year 1947-48 .......... 17,797.9

Peak discharge (base, 300 sec. -ft.).- Oct

charge unknown); Mar. 21 (8:50 p.m. 554 se 

f. Fragmentary gage-height record; dischar 

record.

Mar.

66 

51 

43 

38 

34

30 

29 

30 

26 

24

22 

21 

20 

18.5 

17.5

16.5 

15.5

26

25 

33

286 

261 

122 

81 

58

46 

38 

33 

29 

28 

26

Maximum

317 

187 

186

395

296 

197 

286 

72 

182 

15 

13 

6.8 

111

317

Apr.

27 

33 

33 

35 

38

49 

49 

43 

48 

72

68 

66 

63 

51 

45

41 

40 

35 

32 

29

28 

45 

53 

67

71

65 

54 

45 

37 

31

May

28 

26 

101 

71 

136

182 

116 

77 

56 

42

36 

38 

85 

141 

96

70 

55 

42 

37

32

29 

26 

24

21 

21

18.5 

18 

24 

18.5 

16.5 

15.5

June

15

13.5 

13 

12.5 

12

11.5 

11

11 

10.5 

10.5

10.5 

9.8 

9.3 

9.3 

9.3

8.8 

7.8 

7.8 

7.8

11.5

10.5 

8.8 

7.8 

6.8 

6.8

6.4 

6.0 

6.0 

5.7 

5.7

Minimum Mean

5.4 80 . 4 

19.5 70.2 

22 87.8

3.1 40.8

14.5 74.1 

13 77.4 

15.5 51.4 

27 46.4 

15.5 54.8 

5.7 9.43 

4.1 5.50 

3.5 4.46 

4.1 21.9

3.5 48.6

. 19 (time and discharge unkn 

c.-ft. 

ge computed on basis of parti

July

5.4 

5.4 

S.4 

5.4 

5.7

6.0 

13 

9.8 

6.8 

6.4

6.0 

5.7 

5.4 

5.4 

5.0

4.7 

4.7 

4.7 

4.7 

4.7

4.7 

4.4 

4.4 

4.1 

4.1

4.4 

6.0 

5.0 

4.7 

4.4 

4.1

Per 

square 

mile

10.0 

8.78 

11.0

5.10

9.26 

9.68 

6.42 

5.80 

6.85 

1.18 

.68F 

.55F 

2.74

6.08

Aug.

4.1 

3.8 

3.8 

3.8 

4.4

5.0 

3.8 

3.8 

3.5 

3.5

3.5 

3.5 

4.7 

4.1 

3.8

3.8 

4.1 

4.4 

4.1 

3.8

4.4 

4.1 

3.8 

5.0 

5.4

5.4 

6.8 

6.8 

5.4 

6.0 

6.0

Sept.

4.7 

9.8 

12.5 

8.3 

6.8

6.0 

5.4 

5.0 

4.7 

4.7

4.4 

4.1 

4.1 

11 

50

18.5

13 

11 

9.3 

8.3

29 

49 

40 

33 

26

43 

111 

54 

40 

30

Runoff

Inches

11.59 

9.79 

12.66

69.25

10.68 

10.43 

7.41 

6.48 

7.90 

1.32 

.79 

.64 

3.05

82.74

Ac re- feet

4,490 

4,180 

5,400

29 550

4,560 

4,450 

3,160 

2,760 

3,370 

561 

338 

275 

1,300

35,290

own); Jan. 1 (time and c3isy es time ted gage -height
CHARLIES CREEK BASIN 21

Charlies Creek near Aberdeen, Wash.

Location.- Water-stage recorder, lat. 46°56'25", long. 123°48'10", in SW£ sei. 21, T. 17 

N., R. 9 W., 2 miles upstream from mouth and 2 miles south of Aberdeen.

Drainage area.- 5.7 square miles.

Records available.- October 1945 to September 1948.

Extremes.- Maximum discharge during year, 380 second-feet Mar. 21; maximum gage height, 

li.bY feet Oct. 19; minimum discharge, 0.6 second-foot Aug. 12.

1945-48: Maximum discharge, 436 second-feet Feb. 2, 1947; maximum gag? height, 

that of Oct. 19, 1947; minimum discharge, 0.3 second-foot Sept. 11, 1946.

Remarks.- Records fair. No diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

24

20

12

8.4

6.6

5.7

9.6

15

12

13

9.6

8.7

7.5

38

2V

60

95

181

40

21

14

14.5

10

9.0

8.4

15

29

28

51

105

Nov.

75

46

31

29

26

32

80

90

50

38

28

23

22

24

44

36

34

26

22

20

17.5

15.5

13.5

12.5

12

12

11

10

9.6

11

-

Dec.

11.5

11

19

14.5

12.5

11.5

12.5

12

13

13.5

15.5

14.5

72

69

46

53

114

139

104

54

37

28

143

149

88

54

105

109

58

50

56

Jan.

216

225

134

139

88

80

80

69

57

66

70

63

48

38

32

28

25

23

21

19.5

18

17.5

18.5

17

16

14.5

14

13.5

14

14

12.5

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

13

12

13

16.5

14.5

13

18

82

50

36

29

26

23

33

50

64

86

70

48

45

122

163

90

57

62

119

86

58

43

_

-

Secondfoot-days

902.0

900.6

1,689

7,902.6

1,691

1,542

1,129.5

939

1,172

248.1

131.0

68 . 3

195.6

10,608.1

Mar.

38

31

27

25

23

a22

a23

a22

a21

a!9

a!8

a!6

a!5

a!3

12.5

12

11

17.5

17.5

21

174

219

88

54

39

32

28

25

23

22

21

Maximum

is:

90

149

233

225

163

219

V

13

7.5

4.0

18.5

225

Apr.

21

25

25

26

27

31

31

29

31

42

4?

39

39

34

30

28

29

26

24

23

22

35

38

42

44

41

35

30

26

24

-

May

22

21

58

43

87

129

77

50

36

29

26

27

56

94

66

47

36

29

26

23

21

20

19

17.5

17

16.5

15.5

19

16

14.5

14

Minimum

4.0

9.6

11

1.6

12.5

12

11

21

14

4.5

2.3'.9

1.4

.9

June

13

12.5

12

12

11

11

10

9 . w

9.2

8.8

8.6

8.4

8.0

8.7

8.2

7.5

7.1

6.8

6.9

9.8

8.1

6.9

6.5

6.2

5.9

5.5

5.4

5.2

4.8

4.5

-

Mean

29.1

30.0

54.5

21.7

54.5

53.2

36.4

31.3

37.8

8.27

4.23

2.20

6.52

29.0

July

.4

.3

.3

.3

.5

.6

.5

.5

.9

.4

.4

.3

.3

.1

.1

.0

.0

.9

.9

.8

.8

.7

.7

.4

.4

.5

.4

.0

.4

.9

.3

Per 

square 

mile

5.11

5.26

9.56

3.81

9.56

9.33

6.39

5.49

6.63

1.45

.742

. 386

1.14

5.09

Aug.

2.0

1.8

1.6

1.4

1.8

2.8

1.7

1.3

1.2

1.1

1.1

1.0

5.3

5.2

2.5

2.2

'

'.0

3.9

.3

1.7

1.5

]

L.3

.9

.9

2.4

2.8

,

t

5.8

5.8

5.3

1.0

3.7

Sept.

3.1

4.5

5.5

4.1

3.4

3.0

2.8

2.5

2.1

1.9

1.7

1.7

1.4

3.0

13.5

5.9

4.3

3.9

3.7

3.5

9.2

15.5

12.5

10

8.1

11

13.5

18.5

12

9.8

Runoff

Inches

5.89

5.88

11.02

51.57

11.03

10.06

7.37

6.13

7.65

1.62

.85

.45

1.28

63.23

Acre-feet

1,790

1,790

3,350

15,680

3,350

3,060

2,240

1,860

2,320

492

260

135

388

21,040

Peak discharge (base, 50O see.-ft.).- Oct. 19 (l.a.m.) 352 sec.-ft.; Jan. 1 (8 p.m.) 345 sec.-ft.; 

Mar. 21 110:30 p.m.) jso sec.-ft.

a No gage-height record; discharge computed on basis of records for Newskah Creek near Aberdeen.
CHEHALIS RIVER BASIN

Chehalis River near Doty, Wash.

Location.- Staff gage, lat. 46°37'00", long. 123°16'40", in NWir sec. 14, T. 13 N. , R. 5 

w. , if miles upstream from EUc Creek, lj nmiles south of Doty, and 3j miles north of

Drainage area.- 113 square miles.

Records available.- October 1939 to September 1948.

Extremes.- Maximum discharge during year, 8,720 second-feet Jan. 2 (gage height, 11.35 

feet, from graph based on gage readings); minimum observed, 30 second-feet Sept. 12 

(gage height, 0.94 foot).

1939-48: Maximum discharge, 18,100 second-feet Feb. 7, 1945 (gage height, 17.80 

feet, water over gage, discharge based on observer's estimate of maximum gage height); 

minimum observed, 22 second-feet Aug. 18, 19, 20, 21, 26, 1940, but may have been less 

during period Oct. 1-3, 1939, before gage was installed.

Remarks.- Records good. Gage read twice daily. No diversion or regulatior.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

0.9 26 2.0 292 6.0 2,980 

1.0 36 2.5 519 7.0 3,830 

1.2 65 3.0 800 8.0 4,730 

1.4 104 4.0 1,480 9.0 5,730 

1.7 185 5.0 2,180 10.0 6,880

Discharge, in second-feet, water year October 1947 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 

398 

863 

469 

292

208 

167 

150 

£43 

195

225 

243 

232 

185 

681

1,830 

3,960 

3,920 

3,560 

1,900

1,200 

863 

927 

710 

545

494 

494 

545

469 

545 

1,060

Nov.

2,040 

1,480 

1,060 

863 

739

800 

1,620 

2,040 

1,410 

1,130

927 

800 

800 

927 

1,620

1,340 

1,130 

927 

800

681

571 

494 

427 

375 

354

332 

292 

273 

250 

236

Dec.

254 

292 

332 

312 

312

292 

292 

292 

292 

292

354 

375 

901 

1,340 

927

800 

1,410 

2,500 

2,420 

1,480

1,200 

927 

927 

1,410 

1,270

993

863 

863 

800 

710

681

Jan.

1,010 

6,380 

4,370 

2,500 

1,900

2,110 

2,180 

2,420 

1,690 

1,970

1,690 

1,480 

1,130 

927 

770

653 

571 

494 

445 

398

375 

332 

332 

312 

273

254 

243 

232 

222 

218 

205

Feb.

198 

218 

182 

192 

170

161 

164 

494 

681 

545

421 

375 

332 

332 

1,480

1,760 

2,820 

2,260 

1,550 

1,200

1,900 

3,740 

2,500 

1,830 

2,420

1,690 

1,270 

993 

863

Mnn+v, SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

mbe r ......................

lendar year 194 

ary ...

1 ....... 1

1 .........................

st ........................

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

27,615 

26,738 

26,113

85,952

38,086 

32,741 

23,977 

20,953 

21,706 

3,661 

1,756 

1,359 

3,710

ter year 1947-48 .......... 228,415

Mar.

800 

681 

598 

519 

469

421 

398 

375 

375 

354

332 

312 

292 

273 

273

292 

254 

354 

354 

354

2,900 

5,110 

2,040 

1,340 

927

770 

653 

598 

571 

519 

469

Maximum

3,960 

2,040 

2,500

6,280

6,380 

3,740 

5,110 

1,270 

2,260 

202 

81 

70 

375

6,380

Apr.

445 

445 

445

445 

469

519 

571 

519 

770

1,130

993 

863 

770 

710 

681

681 

681 

625 

545 

469

445 

800 

1,270 

1,060 

1,200

993 

770 

625 

545 

469

May

421 

375 

1,200

1,340 

1,550

2,260 

1,550 

1,060 

800 

681

571 

571 

993 

993 

927

800 

710 

598 

545 

469

421 

375 

354 

312 

292

273 

254 

292 

254 

240 

225

June

202 

185 

182 

170 

164

155

147 

139 

131

121

123 

123 

123 

116 

114

109 

104 

106 

104 

109

126 

114 

102 

96 

91

89 

85 

83 

76 

72

Minimum Mean

42 891 

236 891 

254 842

30 509

205 1,229 

161 1,129 

254 773 

445 698 

225 700 

72 122 

41 56.6 

34 43.8 

31 124

31 624

1948

July

6? 

6? 

62 

63

6f

76 

81

76 

7C

6E

5? 

5$ 

5£ 

57 

52

4? 

4e 

4f 

46 

4£

4£ 

4S

4e

44 

44

41 

52 

6E 

52 

46 

44

Per 

square

mile

7.88 

7.88 

7.45

4.50

10.9 

9.99

6.84 

6.18 

6.19 

1.08 

.501 

.388 

1.10

5.52

Aug.

44 

41 

41 

41 

39

40

41 

41 

39 

36

35 

35 

34 

34 

39

44 

55 

59 

44 

39

35 

45 

41 

41

42

44 

49 

70 

55

51 

65

Sept.

49 

48 

72 

69 

55

49

46 

42 

41 

37

34

31 

34 

39 

354

232 

144 

100 

79 

70

72 

232 

375 

254 

152

182 

247 

218 

192 

161

Runoff

Irches

9.09 

8.80 

8.59

61.19

12.53 

10.78 

7.89 

6.90 

7.14 

1.20 

.58 

.45 

1.22

75.17

Ac re- feet

54,770 

53,030 

51,790

368,800

75,540 

64,940 

47,560 

41,560 43,050" 

7,260 

3,480 

2,700 

7,360

453,000
CHEHALIS RIVER BASIN

Chehalls River near Grand Mound, Wash.

Location.- Water-stage recorder, lat. 46°46'35", long. 123°02'05", in NE^- sec. 22, T. 15 

N., R. 3 W., at Meadow, ij miles southwest of Grand Mound and 6 miles downstream from 

Skookumchuck River. Datum of gage is 123.27 feet above mean sea level, datum uf 1929.

Drainage area.- 897 square miles.

Records' available . - October 1928 to September 1948.

Average discharge .'- 20 years,' 2,567 second-feet.

Extremes.- Maximum discharge during year, 20,000 second-feet Jan. 3 (gage height, 13.57 

feet); minimum, 186 second-feet Sept. 13, 14 (gage height, 2.34 feet).

1928-48: Maximum discharge, 48,400 second-feet Dec. 29, 1937 (gage height, 18.39 

feet); minimum, 1U8 second-feet Sept. 24, 1938.

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

those for periods of no gage-height record, which are poor. 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 1947-48, except period of shifting control 

(gage height, In feet, and discharge, In second-feet)

2.2 140 3.6 1,120 7.0 5,500 

2.4 210 4.0 1,540 8.0 6,900 

2.6 300 4.5 2,120 10.0 10,300 

2.8 420 5.0 2,750 12.0 15,600 

3.0 570 5.5 3,400 14.0 22,500 

3.3 830 _ 6.0 4,100

Discharge, in second-feet, water year October 1947 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.

198 

214 

1,460 

1,970 

1,220

866 

677 

570 

530 

695

785 

875 

740 

642 

610

2,870 

4,100 

7,400 

7,620 

8,760

6,340 

4,380 

3,540 

3,140 

2,560

2,120 

1,820 

1,760 

1,880 

1,880 

3,080

Nov.

6,490 

7,320 

5,780 

4,800 

3,820

3,680 

4,660 

8,730 

8,080 

6,340

5,640 

4,520 

4,100 

4,380 

6,060

8,940 

7,180 

6,340 

5,220 

4,520

3,820 

3-, 140 

2,680 

2,300 

2,120

1,940 

1,820 

1,650 

1,540 

1,480

Dec.

1,760 

1,820 

2,060 

2,420 

2,180

1,940 

1,820 

2,000 

1,940 

1,880

2,000 

2,180 

2,380 

5,710 

5,920

5,220 

5,640 

7,230 

12,300 

10,700

7,410 

6,060 

5,080 

6,690 

7,180

5,920 

4,940 

4,800 

4,940 

4,380 

3,960

Jan.

4 

13 

19 

18 

15

12 

12 

12 

11 

10

12 

11 

6 

6 

5

4 

3 

3 

3 

2

2 

2 

2 

2

1 

1 

1 

1 

1 

1

Month

Octo 

Nove 

Dece

Ca

Jami 

Febr 

Hare 

Apr! 

May 

June 

July 

Augv 

Sept

We

lendar year 1947 .........

ary

tiary

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

iter year 1947-48. .........

Peak discharge (base, 13,000

,890 

,500 

,300 

,600 

,900

,200 

,000 

,800 

,300 

,100

,500 

,000 

,900 

,900 

,640

,660 

,960 

,470 

,080 

,750

,560 

,360 

,240 

120 

,000

,880 

760 

650 

600 

,600 

,540

Feb.

1,480 

1,430 

1,380 

1,430 

1,430

1,320 

1,250 

2,150 

5,360 

5,780

4,800 

3,820 

3,140 

2,750 

5,670

7,920 

10,400 

11,400 

9,740 

7,040

6,900 

11,300 

15,000 

11,400 

8,410

12,700 

13,600 

9,550 

7,040

Secondfoot-days

75,302 

139,090 

140,460

908,183

212,760 

185,590 

132,440 

101,680 

108,380 

24,620 

10,775 

8,470 

14,067

1,153,634

Mar.

5,780 

4,940 

4,100 

3,400 

3,080

2,750 

2,600 

2,500 

2,450 

2,300

2,120 

2,060 

1,940 

1,820 

1,700

1,700 

1,600 

1,600 

1,940 

2,180

2,820 

14,600 

18,300 

12,100

8,030

6,060 

4,800 

3,960 

3,400 

3,010 

2,750

Maximum

8,7fiC 

8.94C 

12,30C

23,OOC

19.30C 

15,000 

18.30C 

4,520 

9,700 

1.38C 

49C 

384 

1.43C

19.30C

Apr.

2,490 

2,560 

3,200 

3,270 

3,270

3,270 

3,470 

3,270 

3,340 

4,240

4,240 

3,820 

3,540 

3,140 

2,940

3,080 

3,470 

3,820 

3,340 

2,940

2,680 

2,750 

3,960 

4,380 

4,520

4,240 

3,680 

3,200 

2,940 

^2,620

May

2,300 

2, ISO 

2,560 

5,500 

5,780

9,120 

9,700 

7,180 

5,500 

4,380

3,540 

3,140 

3,820 

4,100 

3,960

3,540 

3,470 

3,140 

2,750 

2,6ZO

2,360 

2,120 

1,940

1,760 

1,650

1,540 

1,430 

1,760 

2,240 

1,820 

1,540

Minimum

198 

1,480 

1,760

140

1,540 

1,250 

1,600 

2,490 

1,430 

455 

245 

210 

186

186

sec. -ft.).- Dec. 19 (4 to 6 p.m

June

1,380 

1,260 

1,170 

1,110 

1,040

970 

893 

830 

776 

740

776 

1,110 

920 

839 

767

722 

695 

677 

659 

659

875 

884 

794 

713 

650

618 

586 

554 

498 

455

Mean

2,429 

4,636 

4,531

2,488

6,863 

6,400 

4,272 

3,389 

3,496 

821 

348 

273 

469

3,152

) 13,300

1948

July

427 

420 

408 

408 

430

460 

490 

450 

420 

400

390 

375 

360 

350 

340

330 

320 

320 

310 

320

300 

280 

270 

260 

250

245 

250 

312 

330 

290 

260

Per 

square 

mile

2.71 

5.17 

5.05

2.77

7.65 

7.13 

4.76 

3.78 

3.90 

.915 

.388 

.304 

.523

3.51

sec. -ft.

Aug.

246 

218 

222 

226 

230

234 

238 

242 

222 

218

214 

210 

210 

218

226

246 

318 

384 

378 

312

280 

280 

285 

290 

295

324 

318 

330 

366 

360 

330

Sept.

306 

275 

260 

300 

300

265 

246 

234 

218 

210

198 

194 

186 

186 

202

658 

570 

408 

318 

295

260 

275 

583 

960 

812

668 

1,050 

1,430 

1,200 

1,000

Runoff

Inches Acre feet

3.12 149,400 

5.77 275,900 

5.82 278,600

37.66 1,801,000

8.82 422,000 

7.69 368,100 

5.49 262,700 

4~. 22 201,700 

4.49 215,000 

1.02 43,830 

.45 21,370 

.35 16,800 

.58 27,900

47.82 2,288,000

; Jan. 3 (5 to 7

p.m.) 20.000 sec.-ft.;~Feb! 23 (6 to 7 a.m.) 15,600 sec.-ft.; Feb. 27 (1 a.m.) 15,000 sec.-ft.; 

Mar. 23 (2 to 4 a.m.) 19,600 sec.-ft.

Note.- No gage-height record Mar. 7-10, July 5-26, Sept. 29, 30; discharge computed on basis of 

recorded range In stage and records for Satsop River near Satsop. Shifting-control method used 

Oct. 1 to Jan. 15.

O- 51-3
24 CHEHALIS RIVER BASIN

Chehalis River at South Elma, Wash.

Location.- Water-stage recorder, lat. 46°49'00", long. 123°24'40", in NE^NEv sec. 10, T. 

17 M., R. 6 W., at county bridge at South Elma, 1.1 miles downstream from Cloquallum 

River.

Drainage area.- 1,420 squire miles.

Records available.- July 1942 to December 1944 (fragmentary), October 1946 to September 1948. 

Extremes.- Maximum discharge during year, 24,400 second-feet Jan. 5 (gage height, 72.40 

feet); minimum, 310 second-feet Oct. 1 (gage height, 55.70 feet).

1942-44, 1946-48: Maximum discharge observed, 28,000 second-feet Jan. 26. 1947 

(gage height, 74.62 feet): minimum observed. 202 second-feet Sept. 12, 1944 (gage 

height, 55.43 feet).

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

Cities of Centralia and Chehalis divert approximately 15 second-feet from Newaukum 

River, a tributary, for municipal use. No regulation.

Rating tables, water year 1947-48, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

55.7

56.0

56.3

56.6

310

520

730

970

Oct. 1-18

57.0 1,300

57.5 1,750

58.0 2,200

59.0 3,200

Oct. 19 to Sept. 30

60.0 4,270

65.0 5,400

62.5 7,250

56.0

56.3

56.6

440

660

895

57.0 1,230

57.5 1,680

59.0

60.0

61.0

62.0

63.5

3,170

4,270

5,400

6,600

8,600

66.5 13,200

68.0 15,700

70.O 19,400

72.3 24,200

58.0 2,170 65.0 10,800 

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

317

799

1,040

2,290

1,880

1,340

1,050

914

866

874

994

1,050

1,050

954

1,130

2,020

5,050

7,160

13,800

11,400

9,450

6,730

5,160

4,490

3,830

3,390

2,970

2,670

2,770

2,770

3,670

Nov.

6,370

8,740

7,770

6,480

5,520

5,040

5,640

8,320

10,600

9,160

7,510

6,400

5,640

5,520

6,580

9,160

10,200

8,740

7,510

6,400

5,640

4,820

4,270

3,830

3,500

3,390

3,170

2,870

2,770

2,670

-

Dec.

2,770

2,970

3,170

3,610

3,500

3,280

3,070

3,070

3,070

3,070

3,170

3,390

4,000

6,100

8,180

7,900

8,600

10,400

13,000

15,000

13,600

10.20D

9,250

10,600

11,000

9,750

8,320

7,640

7,510

6,990

6,360

Jan.

8,470

16,100

19,800

23,100

24,200

22,700

19,600

18,100

17,900

17,100

17,100

17,500

15,900

12,600

9,900

8,040

6,730

5,880

5,160

4,710

4,380

4,160

3,940

3,720

3,610

3,390

3,170

2,970

2,870

2,770

2,770

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

2,67C

2,570

2,57C

2,570

2,670

2,570

2,370

3,280

5,760

7,380

6,880

5,760

4,930

4,490

5,950

10,100

13,400

15,700

15,500

13,000

10,600

13,800

17,000

18,400

16,400

15,500

17,700

17,900

13,800

-

-

Secondf oo t-day s

103, 878

184,230

212,540

1 , 387 , 826

328,340

271,220

212,410

148,030

170,370

46, 215

17*863

25,348

1,743,146

Mar.

10,400

8,320

6,990

6,000

5,400

4,930

4,600

4,490

4,490

4,160

3,940

3,720

3,610

3,390

3,280

3,170

3,070

3,070

3,280

3,610

5,070

14,600

18,400

20,800

17,400

11,400

8,320

6,750

5,880'

5,160

4,710

Maximum

13,800

10,600

15,000

27 *

24,200

18,400

5)240

13,800

2,470

975

743

2,120

24,200

Apr.

4,380

4,270

4,490

4,820

4,710

4,820

5,160

5,040

4,930

5,520

5,880

5,640

5,160

4,820

4,490

4,490

4,710

5,160

4,930

4,600

4,270

4,160

4,820

5,760

6,240

6,000

5,400

4,820

4,490

4,050

-

May

3,720

3,390

3,830

5,540

7,450

12,000

13,800

12,700

9,600

7,380

6,120

5,400

5,520

6,600

6,600

6,000

5,640

5,160

4,710

4,380

4,050

3,720

3,390

3,170

2,870

2,770

2,670

2,870

3,280

3,170

2,770

Minimum

317

2 , 670

2,770

262

2,770

2,370

3,070

4,050

975

555

489

419

317

June

2,470

2,270

2,170

2,070

1,970

1,870

1,720

1,640

1,540

1,500

1,500

1,680

1,770

1,590

1,500

1,410

1,?60

1,320

1,320

1,320

1,360

1,460

1,410

1,320

1,230

1,190

1,140

1 , 100

1,040

975

-

Mean

3,351

6,141

6,856

3, 802

10,590

9,352

4 934

5 493

1^540

736

576

845

4,763

July

?27

895

879

F63

871

903

959

975

959

879

831

791

775

728

712

682

645

638

638

645

652

645

638

615

578

562

E70

562

615

615

E55

Per 

square 

mile

2.36

4.32

4.83

2.68

7.46

6.59

4.83

3. 47

3.87

1 . 08

.51S

.406

.595

3.35

Aug.

540

525

525

540

548

570

555

548

540

518

503

496

489

489

503

532

660

743

705

622

592

570

548

578

600

608

622

652

652

668

622

Sept.

592

578

600

570

578

562

532

496

482

468

447

440

426

419

720

720

1,000

799

660

600

615

895

959

1,280

1,230

1,190

1,770

2,120

1,920

1,680

Runoff

Inches

2.72

4.83

5.57

36 . 36

8 . 60

7.10

5.56

3. 88

4.46

1.21

.60'

.47

.66

45.66

Acre-feet

206,000

365,400

421,600

2,753,000

651,300

538,000

421,300

293, 600

337,700

91,670

45,230

35,430 

50,280

3,458,000

Peak discharge (baae, 17,OOQ-aec.-ft.).- Jan. 5 (8 to 9 a.m.] 

18,600 sec.-ft.; Mar 24 (5 p.m.) 21,000 sec.-ft.

Note.- Shifting-control method used July 4 to Sept. 30.

24,400 sec.-ft.; Feb. 24 (11 a.m.)
CHEHALIS RIVER BASIN 25 

Elk Creek near Doty, Wash.

Location.- Water-stage recorder, lat. 46°37i40", long. 123°19'50", in NW£ sec. 8, T. 13 

N., K. 5 ¥., half a mile upstream from Nine Creek, 1 mile upstream from Deer Creek, 

and 2§- miles west of Doty.

Drainage area.- 46.7 square miles.

Records available.- July 1942 to October 1943 (fragmentary), July 1944 to September 1948.

Extremes.- Maximum discharge during year, 1,320 second-feet Mar. 21 (gage height, 6.12 

feet); minimum, 13.5 second-feet Sept. 13.

1942-48: Maximum discharge, 1,820 second-feet Dec. 11, 1946 (gage height, 7.06 

feet), from rating curve extended above 1,200 second-feet; minimum, 8.6 second-feet 

Sept. 9-11, 1944.

Remarks.- Records good except those for July to September, which are fair. No diversion 

or regulation.

Revisions.- W 1012: Drainage area.

Rating table, water year 1947-48 (gage height, in feet,

anfl discharge, in second-feet) 

(Shifting-control method used May 6 to Sept. IP)

2.0 14

2.2 24

2.4 40

2.6 63

2.8 92

3.0 128

3.3 191

3.6 263

4.0 385

4.5 570

5.0 790

5.5 1,020

6.0 1,270

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

68

142

70

48

36

30

29

35

33

36

33

29

28

77

165

245

335

61O

378

248

180

173

138

117

104

90

92

86

106

166

Nov.

314

26O

240

216

224

287

595

835

472

378

323

263

268

299

420

385

338

332

276

238

202

176

156

142

134

128

120

109

104

107

-

Dec.

128

113

144

130

115

107

117

126

130

124

148

142

194

283

260

246

303

464

633

420

314

265

305

420

338

279

256

302

302

256

240

Jan.

386

f880

835

722

570

550

550

550

455

700

722

530

402

329

276

246

216

196

178

161

148

140

136

132

122

113

107

102

100

102

99

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

95

92

90

102

100

88

86

247

311

263

200

169

148

171

382

382

490

455

332

282

360

880

700

455

472

790

570

402

326

-

-

Secondroot-days

3 942

s!341

7,602

50,720

10,755

9,440

7,301

5,438

5,810

1,769

896

EB9.5

862

62,845.E

Mar.

293

271

228

205

189

178

171

198

176

154

146

138

128

124

117

117

109

126

156

176

444

1,100

530

371

302

248

216

193

176

167

154

Maximum

610

835

632

1,420

880

880

1,100

256

455

89

40

30

61

1,100

Apr.

150

163

167

167

169

184

207

180

205

256

226

207

193

178

165

152

1S1

150

136

128

124

178

228

224

224

214

205

182

165

150

-

May

136

126

182

198

271

455

347

274

224

196

173

182

238

293

279

231

209

1S2

165

158

146

132

134

115

109

106

104

130

132

106

97

Minimum

15

104

107

13

99

86

109

124

97

36

22

19. E

14

14

June

89

86

80

78

76

73

69

66

62

61

59

59

58

57

56

53

52

53

EO

57

64

61

53

48

47

44

44

40

38

36

-

Mean

127

278

245

139

347

326

236

187

59.0

28.9

22.2

28.7

172

July

34

33

32

33

35

40

40

40

36

33

31

30

28

26

26

25

24

24

26

28

27

25

25

24

22

22

26

29

26

24

22

Per 

square 

mile

2.72

5. 95

5.25 '

2.98

7.43

6.98

5.05

3.88

4.00

1.26

.619

.475

.615

3.68

Aug.

21

22

22

22

22

22

22

21

21

19.5

19.5

19.5

20

21

21

22

30

30

25

22

21

23

21

20

21

21

22

28

24

22

22

Sept.

19.5

18.5

19.5

20

18

17

16.5

15.5

15 '

14.5

14

14

14

15

54

48

30

24

22

21

21

47

59

49

36

36

61

49

40

34

-

Runoff

Inches Acre-feet

3.14 7,820

6.64 16,540

P. 05 15,080

40.38 100,600

8.56 21,330

7.52 18,720

5.81 14,480

4.33 10,790

4.63 11,520

1.41 3,510

.71 1,780

.55 1,370

.69 1,710

50.04 124,600

Peak discharge (base. 970 see.- 

21 (12 p.m.; 1,320 sec.-ft

ft.)

ar. 21 (12 p.m.; 1,320 sec.-ft. 

f Computed on basis of partly estimated gage-height record.

8 (3 a.m.) 970 sec. -ft.; Jan. 2 (11 p.ra ) 970 sec. -ft.
^ CHEHALIS RIVER BASIN

South Fork Chehalis River at Boistfort, Wash.

Location.- Water-stage recorder, lat. 46°32'45", long. 123°07'55", in NW^NWi: sec. 12, T. 12 

K., K. 4 W., a quarter of a mile south of Boistfort and 6 miles upstream from mouth.

Drainage area.- 49.2 square miles.

Records available.- July 1942 to October 1943 (fragmentary), July 1944 to September 1948.

Extremes.- Maximum discharge during year, 2,630 second-feet Jan. 2 (gage height, 8.20 feet), 

from rating curve extended above 1,400 second-feet; minimum, 3.7 second-feet Sept. 13, 14.

1942-48: Maximum discharge recorded, 4,680 second-feet Feb. V, 1945 (gage height, 

11.57 feet), from rating curve extended.above 1,400 second-feet; minimum, 2.5 secondfeet Sept. 14, 1944 (gage height, 1.67 feet).

Remarks.- Records good except those below 12 second-feet and those above 1,000 second-feet, 

which are fair. Small diversions for irrigation. No regulation.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Aug. 19 to Sept. 30)

Oct. 20 to Sept. 30

1.9 7.5 2.7 104 4.0 540 1.7 1.3 3.0 209 

2.1 20 3.0 173 4.5 755 1.9 8.6 3.3 296 

2.5 40 3.3 263 5.0 98O 2.1 £8 3.6 392 

2.5 68 3.6 380 2.3 54 4.0 540 

2.5 88 4.5 759 

2.7 132 5.0 984

Discharge, in second-feet, water year October 1947 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.

8.6 

13 

130 

85 

49

36 

29 

25 

22 

24

48 

45 

37 

33 

39

297 

411 

890 

935 

782

520 

356 

349 

299 

243

206 

172 

196 

174 

196 

362

Nov.

669 

520 

452 

356 

302

269 

272 

337 

308 

290

249 

220 

226 

243 

434

463 

389 

333 

281 

246

212 

185 

166 

151 

137

127 

118 

111 

105 

103

Dec

114 

101 

109 

111 

101

94 

96 

98 

98 

98

116 

120 

200 

416 

333

315 

456 

669

804 

520

396 

343 

327 

520 

441

353 

302 

302 

287 

252 

252

Jan.

927 

2,270 

1,330 

916 

669

692 

939 

916 

669 

624

849 

624 

474 

385 

324

278 

230 

212 

190 

159

156 

144

137 

127 

120

111 

105 

101 

98 

96 

90

Feb.

90 

86 

83 

84 

83

77 

74 

190 

327 

272

206 

174 

156 

191 

692

624 

1,120 

916 

581 

452

714 

1,450 

939 

602 

501

692 

581 

452 

369

u»«4v. SecondMonth foot-days

Octc 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

1 .. ...... ....... ..... . 5,

st ........................

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

011.6 

274 

744

011.9

972 

778 

772 

560 

119 

437 

570 

359.8 

477.9

ter year 1947-48 .......... 76,075.3

Peak discharge (base, 2,400 sec. -ft.).- Jz

2,450 sec. -ft.

Mar.

327 

287 

246 

220 

198

179 

164 

161 

146 

132

127 

120 

114

109 

103

103 

96 

107 

127 

134

564 

1,960 

804 

501 

379

315 

263 

231 

204 

185 

166

Maximum

935 

669 

804

2,320

2,270 

1,450 

1,960 

299 

669 

79 

28 

23 

51

2,270

Apr.

154 

161 

164 

156 

156

187 

229 

204 

212 

215

198 

190 

179 

166 

156

148 

164 

166 

151 

142

137 

159 

198 

251 

299

260 

231 

201 

182 

164

May

149 

134 

285 

399 

449

669 

520 

413 

327 

275

234

231 

272 

252 

231

220 

220 

198 

182 

177

151 

144 

132 

120 

114

107 

103 

114 

109 

94 

84

June

79 

74 

70 

67 

64

60 

56 

53 

51 

48

51 

57 

54 

50 

47

44 

43 

43

40 

40

46 

41 

39 

36

35

34 

32 

30 

28 

25

5.5 1,210 

6.0 1,450 

7.0 1,950 

7.6 2,270

1948

July

25 

24 

24 

23

24

26 

26 

28 

25 

22

21 

21 

20 

19 

18

16 

15 

14 

15 

16

15 

15 

14 

14 

13

12 

12 

12 

14 

12 

11

Per 

Minimum Mean square 

mile

8.6 226 4.59 

103 276 5.61 

94 282 5.73

7.5 164 3.33

90 483 9.82 

74 441 8.96 

96 283 5.75 

137 185 3.76 

84 230 4.67 

25 47.9 .974 

11 18.4 .374 

7.7 11.6 .236 

3.7 15.9 .323

3.7 208 4.23

n. 2 (5:30 a.m.) 2,630 sec. -ft.; Mar

.5

.5 

.5 

.5

.5

.5 

.5 

.5

Aug.

10 

10 

10

11

12

12 

12 

11 

9.4 

9.4

9.4 

9.4 

10 

10 

12

13.5 

19 

23 

14.5 

12

12 

13.5 

12.5 

9.4 

10

11 

10 

13.5 

12 

8.6 

7.7

Sept.

6.8 

6.8 

6.8 

9.4 

8.1

6.8 

6.3 

4.9 

4.9 

4.9

4.5

4.0 

3.7 

4.0 

13

28 

14.5 

9.4 

8.1 

7.2

6.8 

10 

38 

44 

28

24 

51 

48 

38 

28

Runoff

Inches

5.30 

6.25 

6.61

45.35

11.32 

9.66 

6.63 

4.20 

5.38 

1.09 

.43 

.27 

.36

57.50

Acre-feet

13,910 

16,410 

17,340

119,000

29,700 

25,340 

17,400 

11,030 

14,120 

2,850 

1,130 

714 

948

150,900

22 (8:30 a.m.)
CHEHALIS RIVER BASIN 21 

Newaukum River near Onalaska, Wash.

Location.- Water-stage recorder, lat. 46°34'35", long. 122°41'00", on line between sees.

'^ and 33, T. 13 N., R. 1 E., 0.9 mile upstream from Lost Creek and 1? miles east of

Onalaska.

Drainage area.- 40.8 square miles. 

Hecords available.- July 1942 to October 1943 (fragmentary), July 1944 to Novsmber 1948

(discontinued). 

Extremes.- 1947-48: Maximum discharge during water year, 2,030 second-feet Nov 7 (gage

height, 5.96 feet); minimum, 36 second-feet Aug. 10-13 (gage height, 1.57 feet).

1948: Maximum discharge during period October to November, 286 second-feet Oct 7

(gage height, 2.72 feet); minimum, 60 second-feet Oct. 30 (gage height, 1.77 feet). 

1942-48: Maximum discharge, 3,810 second-feet Dec. 11, 1946 (gage height, 8.40

leet); minimum, 21 second-feet Sept. 6, 8-12, 1944.

Remarks - Records excellent except those for periods of shifting control, which are good, 

and those for periods of no gage-height record, which are fair. No diversion or regulation.

Discharge, In second-feet, 1947-48 

1947-4B

Day

1

2

3

4

5

6

7

8

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

139

418

185

128

103

89

84

105

111

117

102

98

89

150

311

451

491

854

569

362

268

236

191

168

158

146

168

150

279

410

Nov.

696

458

386

300

278

392

1,260

1,410

800

774

614

486

530

477

774

670

609

530

444

395

326

280

250

220

200

190

180

170

165

165

-

Dec.

180

170

210

195

180

170

165

160

165

150

170

160

270

430

400

370

500

620

670

467

378

330

314

382

322

275

311

422

391

318

322

Jan.

639

1,240

935

990

696

774

990

748

554

584

530

450

400

355

310

270

250

230

210

200

190

180

172

168

155

146

137

130

128

126

119

Feb.

117

111

107

107

102

96

96

146

160

139

122

115

117

163

314

376

584

589

386

307

530

1,240

800

506

713

1,270

748

506

382

_

-

Mar.

332

275

236

213

196

185

175

185

165

150

148

139

137

130

124

119

115

128

141

141

484

1,010

477

370

345

282

252

239

233

216

213

Apr

202

239

255

230

227

213

199

191

227

227

230

216

204

194

204

292

314

286

255

233

224

239

330

345

326

275

242

224

204

185

May

178

168

252

272

404

774

467

333

262

227

199

207

202

196

180

178

178

170

158

158

148

144

134

132

132-

128

128

212

160

139

126

June

122

115

111

103

98

94

89

84

80

75

136

102

92

84

77

80

77

75

72

109

134

124

111

100

94

87

80

77

70

69

July

66

63

60

59

59

64

66

60

53

52

52

49

47

47

46

44

43

46

47

46

43

42

41

40

39

39

55

56

47

42

40

Aug.

38

39

39

40

39

42

38

37

37

36

36

36

37

39

60

60

64

56

48

44

43

48

42

72

84

69

80

87

74

74

66

Sept.

56

55

62

53

48

46

43

42

41

40

39

38

38

39

47

44

40

39

38

37

38

80

89

72

60

136

282

227

180

139

Peak discharge ("base, 1.3OO see.-ft.).- Nov. 7 (9 p.m.) 2,030 sec.-ft.; Jan. 2 (2 a.m.) 1,320 

sec.-ft.; Feb. 2Z (9:30 a.ra.J 1,32O sec.-ft.; Feb. 26 (2 a.m.) 1,440 sec.-ft.; Mar. 22 (12:30 a.m.) 

1,730 sec.-ft.

Mote.- Ho gage-height record Nov. 22 to Dec. 19, Jan. 12-22; discharge computed or basis of 

1 discharge measurement, recorded range in stage and records for Skookumchuck River near Centralia. 

Shifting-control method used Nov. 6-21, Mar. £1 to Sept. 30.

1948

Day

1

2

3

4

5

6

Oct.

113

98

90

173

180

130

Nov.

84

98

_

_

_

_

Day

7

8

9

10

11

12

Oct.

252

216

175

150

144

122

Nov.

_

_

_

_

_

-

Day

13

14

15

16

17

18

Oct.

Ill

103

94

87

82

77

Nov.

_

_

-

_

-

-

Day

19

20

21

22

23

24

Oct.

75

74

70

69

69

72

Nov.

-

-

-

_

-

-

Day

25

26

27

28

29

30

31

Oct.

68

66

63

62

32

74

78

Nov.

-

-

-

-

-

-

-

Mote.- Shifting-control method used Oct. 1 to Ho

Monthly discharge, in nd-feet, 1947-48

Month

Calend&r year 1947 .........

Uav

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

Water year 1947-48 .......... 

October 1948. ..................

Secondfoot-days

7,169 

14,429 

9,567

72,701

13,006 

10,949 

7,555 

7,232 

6,746 

2,821 

1,553 

1,604 

2,188

84,819

3,349

Maximum

854 

1,410 

670

1,410

1,240 

1,270 

1,010 

345 

774 

136 

66 

87 

282

1,410

252

Minimum

39 

165 

150

28

119 

96 

115 

185 

126 

69 

39 

36 

37

36

62

Mean

231 

481 

309

199

420 

378 

244 

241 

218 

94.0 

50.1 

51.7 

72.9

232

108

Per 

square 

mile

5.66 

11.8 

7.57

4.88

10.3 

9.26 

5.98 

5.91 

5.34 

2.30 

1.23 

1.27 

1.79

5.69

2.65

Runoff

Inches

6.53 

13.15 

8.72

66.27

11.86 

9.98 

6.89 

6.59 

6.15 

2.57 

1.42 

1.46 

1.99

77.31

3.05

Acre-feet

14,220 

28,620 

18,980

144,200

25,800 

21,720 

14,990 

14,340 

13,380 

5,600 

3,080 

3,180 

4,340

168,200

6,640
28 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 fl . , R. 2 W., 2.2 miles southeast of Chehalis and 3.4 miles upstream from mouth.

Drainage area.- 159 square miles.

Records available.- March 1929 to September 1931, July 1942 to September 1948.

Extremes.- Maximum discharge during year, 4,880 seeond-feet Mar. 22 (gage height, 11.7 feet, 

from graph "based on gage readings), from rating curve extended above 2,800 second-feet 

on basis of velocity-area studies and logarithmic plotting; minimum observed, 49 secondfeet Oct. 1 (gage height, 1.20 feet).

1929-31, 1942-48: Maximum discharge observed, 5,400 second-feet Dec. 11, 1946 (gage 

height, 12.50 feet), from rating curve extended above 2,800 second-feet on basis of 

velocity-area studies and logarithmic plotting; minimum observed, 27 seconi-feet Sept. 

23, 1930.

Remarks.- Records good except those for periods of shifting control, which ara fair. Gage 

read twice daily. Cities of Chehalis and Centralia divert about 15 second-feet for 

municipal use. No regulation.

Revisions (water years).- W 1012: 1943.

Rating table, water year 1947-48, e 

(gage height, in feet, and dis

cept periods of shifting 

charge, in second-feet)

1.2 45 3.O 48O 7.0 2,200 

1.4 66 3.5 655 8.0 2,700 

1.7 119 4.0 835 9.0 3,260 

2.0 188 5.0 1,240 10.0 3,830 

2.5 323 6.0 1,700

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7

8 

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 

72 

620 

338 

213

164 

134 

123 

128 

164

176 

152 

141

141 

164

620 

795 

1,C,0 

1,800

1,800

955 

655 

515 

383 

308

266 

239 

280 

280 

415 

1,120

Nov.

2,100 

1,460 

1,160 

795 

725

915 

2,000 

2,980 

1,950 

1,420

1,200 

1,080 

1,200 

1,160 

2,100

1,850 

1,370 

1,200 

955 

795

690 

620 

480 

447 

399

383 

338 

294 

266 

294

Dec.

399

550 

760 

585 

447

399 

415 

480 

480 

399

480 

447 

550 

1,200 

955

875 

915 

1,800 

2,100 

1,280

955 

835 

585 

1,160 

915

725 

620 

995 

915 

760 

690

Jan.

1,460 

3,830 

3,310 

3,260 

2,200

2,300 

2,700 

2,100 

1,550 

2,100

2,100- 

1,500 

1,160 

955 

795

690 

620 

550 

480 

447

415 

383 

383

383 

338

294 

294

280 

266 

280 

266

Feb.

266 

239 

239 

239 

226

213 

239 

480 

915 

760

515 

447 

415 

447 

1,240

1,280 

2,050 

1,750 

1,200 

955

1,160 

2,760 

2,400 

1,500 

1,700

3,650 

2,250 

1,500 

1,120

Month

Octo 

Nove 

Dece

Ca

Janu 

febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

1..... ..................................

ter year 1947-48 .......................

Mar.

955 

795 

620 

585 

515

480 

447 

515 

447 

399

383 

353 

323 

308 

294

280 

266 

294 

368 

415

620 

3,420 

1,900 

1,240 

955

835 

690 

550 

558 

550 

515

Apr.

480 

585 

835 

7 BO 

760

690 

585 

550 

725 

690

620 

550 

550 

480 

480

690 

620 

760 

620 

620

585 

585 

725 

835 

760

690 

585 

515 

480 

399

Seoondfoot-days

14,290 

32,626 

24,671

172,709

37,689 

32,155 

20,867 

18,809 

19,143 

5,354 

2,505 

2,457 

4,124

214,690

May

368 

353 

76O 

955 

1,280

2,350

1,500 

1,080 

835 

690

585 

550 

655 

585 

550

515 

550 

447 

415

415

399 

383 

353 

323 

294

280 

252 

353 

480 

308 

280

Maximum

1,800 

2,980 

2,100

4,430

3,830 

3,650 

3,420 

835 

2,350 

294 

128 

134 

725

3,830

June

252 

239 

213 

176 

188

176

164 

152 

152 

141

294 

252 

213 

176 

152

141 

141 

139 

134 

239

252 

213 

188 

164 

164

152 

152 

119

113 

103

July

103 

99 

99 

99 

99

99 

107 

107 

95 

86

81 

81 

78 

75 

69

65 

65 

68 

80 

80

72 

66 

64 

62 

59

59 

61 

128 

75 

65 

59

Aug.

56 

56 

58 

58 

59

61 

62 

55 

54 

53

53 

52 

54 

65 

81

123 

119 

115 

99 

85

69 

66 

66 

78 

134

109 

107 

123 

107 

97 

83

Minimum Mean

49 461 

266 1,088 

399 796

34 473

266 1,216 

213 1.10F 

266 673 

399 627 

252 618 

103 17F 

59 80.8 

52 7F.3" 

52 137

49 5*87

Sept.

81 

75 

92 

92 

75

64 

61 

60 

59 

56

54 

52 

52 

53 

65

81 

62 

58 

55 

53

55 

103 

176 

128 

95

480 

725 

399 

383 

280

Runoff In 

acre-feet

28,340 

64,710 

48,930

342,600

74,760 

63,780 

41,390 

37,310 

37,970 

10,620 

4,970 

4,870 

8,180

425,800

Note.- Shafting-control method used Oct. 1 to Jan. 4, May 5 to June 18, Oct. 4-15.
CHEHALIS RIVER BASIN 29

Skookumchuck River near Centralia, Wash.

Location.- Water-stage recorder, lat. 46°47'15", long. 122°42'45", in SW^NW^ sec. 17, T. 

15 N., R. IE., half a mile upstream from Bloody Run Creek, 4^ 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 1948.

Average discharge.- 11 years, B07 second-feet.

Extremes.- Maximum discharge during year, 3,880 second-feet Mar. 22 (gage height, 46.27 

feet); minimum, 26 second-feet Oct. 1.

1929-31, 1939-48: Maximum discharge, that of Dec. 11, 1947, Mar. 22, 1948; minimum, 

18 second-feet Oct. 27-30, 1944.

Remarks.- Records good. No diversion or regulation. 

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

Rating tables, water year 1947-48 (gage height, in feet, 

'and discharge, in second-feet)

Oct. 1 to Jan. 1 Jan. 2 to Sept. 30

39.6 21 40.5 129 42.0 765 39.6 27 40.8 214 43.0 

39.8 35 40.8 '201 42.5 1,060 39.8 42 41.1 315 43.5 

40.0 55 41.1 315 43.0 1,380 40.0 63 41.5 505 44.0 

40.2 80 4T.5 505 40.2 89 42.0 765 

40.5 140 42.5 1,060

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

65 

320 

156 

108

83 

68 

63 

88 

89

103 

84 

76 

68 

176

535 

738 

710 

1,120 

850

570 

410 

333 

247 

204

179 

151 

193 

181 

275 

475

Nov.

1,000

610 

450 

356 

291

287 

666 

1,120 

640 

545

460 

374 

369 

315 

615

590 

505 

465 

392 

357

303 

259 

218 

193 

176

168 

149 

137 

129 

129

Dec.

163 

149 

195 

179 

161

143

139 

129 

131 

118

137 

129 

267 

550 

500

450 

738 

1,210 

1,120 

666

515 

455 

435 

610 

505

405 

396 

555 

495 

405 

382

Jan.

940 

2,080 

1,340 

1,210 

820

940 

1,090 

970 

704 

-850

738 

550 

440 

378 

324

282 

255 

236 

220 

203

192 

186 

186 

181 

167

151 

140 

132 

129 

127 

118

Feb.

116 

107 

107 

104 

98

90 

92 

230 

324 

248

189 

158 

144 

192 

677

640 

940 

910 

600 

465

666 

1,760 

970 

640 

710

1,420 

910 

630 

485

uA«4-u Second 

Month foot-days

Goto 

Nove 

Dece

Ca

Jann 

Febr 

Hare 

Apri 

May 

June 

Jnly 

Augu 

Sept

Wa

mber . .

lendar year 1947

1 ..........................

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

8,744 

12,268 

12,432

83,215

16,279 

14,622 

10,509 

9,937 

8,830 

2,881 

1,531 

1,481 

2,126

ter year 1947-48 .......... 101,640

Mar.

415 

342 

289 

255 

226

208 

194 

197 

192 

170

164 

158 

149 

138 

129

121 

116 

136 

129 

132

794 

2,070 

792 

575 

495

400 

351 

311 

308 

285 

268

Maximum

1,120 

1,120 

1,210

2,700

2,080 

1,760 

2,070 

505 

792 

138 

63 

62 

271

2,080

Apr.

258 

296 

351 

320 

304

293 

278 

262 

' 311 

342

333 

307 

282 

258 

268

445 

435 

405 

360 

308

300 

333 

505 

495 

455

382 

315 

271 

248 

217

May

203 

181 

351 

460 

495

792 

590 

440 

356 

300

252 

278 

342 

342 

304

282 

272 

245 

217

208

194 

186 

169 

162 

164

158 

153 

236 

189 

162 

147

Minimum

26 

129

118

25

118 

90 

116 

217 

147 

63 

40 

40 

32

26

Peak discharge (base, 1,500 sec. -ft.).- Dec. 18 (7:30 p.m.) 1

June

136 

127 

121 

111 

107

102 

98 

92 

88 

85

138 

123 

106 

95 

88

94 

88 

81 

76 

96

110 

102 

94 

89 

85

78 

74 

69 

65 

63

Mean

282 

409 

401

228

525 

504 

339 

, 331 

285 

96.0 

49.4 

47.8 

70.9

278

July

61 

60 

58 

56 

56

61 

63 

63 

55 

53

51 

51 

49 

46 

46

45 

44 

44 

47 

47

45 

43 

43 

42 

41

40 

51 

45 

44 

41 

40

Per 

square 

mile

4.70 

6.82 

6.68

3.80

8.75 

8.40 

5.65 

5.52 

4.75 

1.60 

.823 

.797 

1.18

4.63

,800 sec. -ft.; Jan

1,380 

1,730 

2,080

Aug.

40 

40 

41 

43 

42

46 

43 

42

41 

41

41 

41 

45 

47 

62

60 

62 

59 

50 

46

45 

51 

46 

52 

54

49 

51 

61 

48 

47 

45

Sept.

41 

38 

50 

42 

39

37 

36 

35 

33 

33

32 

32 

32 

33

52

49 

38 

36 

36 

34

34 

78 

119 

90 

69

95 

271 

239 

214 

158

Runoff

Inches

5.42

7.60 

7.71

51.58

10.09 

9.06 

6.51 

6.16 

5.47 

1.79 

.95 

.92 

1.32

63.00

. 2 (4 p

Acre-feet

17,340 

24,330 

24,660

165,000

32,290 

29,000 

20,840 

19,710 

17,510 

5,710 

3,040 

2,940

201,600

m.) 2,360

sec.-ft.; Feb. 22 (b:30 a.m.) 2,080 sec.-ft.; Feb. 26 (9 a.m.) 1,590 sec.-ft.; Mar. 22 (1 a.m.) 

3,880 sec.-ft.
30 CHEHALIS RIVER BASIN

Lincoln Creek near Rochester, Wash.

Location.- Water-stage recorder, lat. 46°44'10", long. 123°10'40", in SW^SV'^- sec. 34, T. 

lb M., R. 4 W., l£ miles downstream from confluence of North and South Forks and 7 

miles southwest of Rochester.

Drainage area.- 20.9 square miles.

Records available.- July 1942 to October 1943 (fragmentary), June 1944 to September 1948.

Extremes.- Maximum discharge during year, 699 second-feet probably Mar. 22 (gage height, 

12.20 feet, from high-water mark on staff gage); minimum not determined, probably 

occurred sometime during period of no gage-height record in September.

1942-48: Maximum discharge observed, 923 second-feet Jan. 25, 1947 (gage height, 

13.50 feet); minimum observed, 0.4 second-foot Aug. 23, 1945.

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. Small 

diversion during summer for irrigation.

Discharge, in second-feet, water year October 1947 to Septembe 194E

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.3

34

58

27

20

16.5

14.5

13.5

14.5

14

14.5

13

11.5

11.5

21

40

82

94

222

146

106

81

91

71

61

57

50

51

45

59

84

Nov.

131

116

108

94

86

96

179

264

182

146

121

98

101

113

259

222

180

146

118

101

86

75

69

61

57

53

48

43

39

41

-

Dec.

46

40

52

47

44

42

43

43

47

45

61

59

93

136

126

118

131

233

294

194

141

111

133

162

131

108

96

108

91

79

79

Jan.

178

407

286

337

252

240

264

276

228

365

337

252

192

146

121

98

81

71

63

57

51

48

47

44

40

38

35

33

33

33

30

Month

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

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

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

Calendar year 1947 .........

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

February ................. i ....

Match . . ......................

Aj, il .........................

Ifnv ay ...........................

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

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

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

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

Water year 1947-48 ..........

Feb.

29

27

28

34

29

26°7

101

131

106

84

73

65

80

192

226

270

240

174

146

213

442

323

228

244

276

222

170

136

_

-

Secondfoot days

1,624.8

3,433

3,133

20,9O8.0

4,783

4,342

3,247

2,331

2,503

505.9

137.7

84.0

232.7

26,357.1

Mar

121

101

84

75

69

63

61

61

55

52

50

46

43

42

40

38

36

40

45

50

400

500

300

200

150

120

100

90

80

70

65

Maximum

222

264

294

740

407

442

500

100

228

27

7

5

21

500

Apr.

60

62

64

62

65

80

100

95

98

96

94

92

90

86

77

73

79

71

65

61

59

77

81

84

88

86

79

75

69

63

May

57

53

84

84

151

228

180

141

114

96

81

84

88

106

104

96

88

75

69

65

59

53

48

44

40

38

36

43

36

32

30

Minimum

1.3

39

40

.9

30

26

36

59

30

6.7

2.5

2

1

1

June

27

26

25

24

23

22

21

19.5

19

19

19.5

19

19

18.5

17.5

16

15.5

15

14.5

16

16

14.5

13

11

11

10.5

10

9.4

7.8

6.7

Mean

52.4

114

101

57.3

154

150

105

77.7

80.7

16.9

4.44

2.71

7.76

72.0

July

6.7

6.2

6

5.5

6

6.5

6.5

7

6.5

6

5.5

5.5

5

4.5

4

3.5

3.5

3

3

3.5

3.5

3

3

3

2.8

2.6

3

f3.9

3.5

3

2.5

Per 

square 

mile

2.51

5.45

4.83

2.74

7.37

7.18

5.02

3.72

3.86

.809

.212

.130

.371

3.44

Aug.

2

2

2

2

3

3

3

2

2

2

2

2

2

2

3

3

4

5

2

2

2

2

2

2

2

2

3

3

3

2

2

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Sept.

1.7

f2.6

f3.9

5

4.5

4

3.5

3

3

2.5

2

1.5

1

1.5

5

15

9

8

7

6

5

7

17

20

14

12

21

18

16

13

Runoff

Inches

2.89

6.11

5.57

37.20

8.51

7.73

5.78

4.15

4.45

.90

.25

.15

.41

46.90

Acre-feet

3,220

6,810

6,210

41,470

9,490

8,610

6,440

4,620

4,960

a, ooo

273

167

462

52,260

Peak discharge (base, 450 see.-ft.).- Jan. 2 (6 p.m.) 481 sec.-ft.; Feb. 22 (1:30 a.m.) 481 sec.- 

ft.; probably Mar. 22ltime unknownJ 699 sec.-ft.

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Mar. 10,11, Mar. 14 to Apr. 13, July 3-27, July 29 to Sept. 1, Sept. 

4-30; discharge computed on basis of recorded range In stage and records for Chehalls River near Doty 

and South Fork Chehalls River at Bolstfort. shifting-control method used Oct. 1 to Feb. 21, June 1 

to July 2, July 28.
CHEHALIS RIVER BASIN 31

Black River at Little Rock, Wash.

Location.- Water-stage recorder, lat. 46°54'10", long. 123°01'20", in NEijSW^ sec. 2, T. 16 

M., K. 3 W., at bridge crossing in Little Rock 0.4 mile upstream from Beav3r Creek.

Drainage area.- 64 square miles.

Records available.- July 1942 to October 1943 (fragmentary), June 1944 to September 1948.

Extremes.- Maximum discharge during year, 695 second-feet Jan. 4 (gage height, 4.96 feet); 

minimum, 12 second-feet Oct. 1.

1942-48: Maximum discharge, 1,220 second-feet Jan. 25, 1947; maximum gage height, 

6.50 feet Jan. 26, 1947; minimum discharge observed, 5.3 second-feet Sept. 9, 1944 

(gage height, 1.30 feet).

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

diversion or regulation.

Rating tables, water year 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Feb. 26 Feb. 27 to Sept. 30

1.9 19 2.6 100 3.6 296 1.7 13 2.9 

2.1 35 2.9 146 4.2 454 1.9 30 3.2 

2.3 58 3.2 200 5.0 680 2.1 52 3.6 

2.3 79 4.2 

2.6 125 4.8

Discharge, in second- feet, water year October 1947 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.

12 

55 

102 

71 

46

32 

25 

23 

23 

25

30 

26 

24 

23 

48

112 

178 

251 

454 

374

278 

207 

180 

156 

138

126 

115 

114 

109 

116 

135

Nov.

171 

169 

164 

154 

149

160 

209 

304 

264 

239

209 

184 

178 

171 

241

256 

241 

215 

190 

171

156 

143 

132 

121 

116

115 

110 

106 

102 

103

Dec.

116 

115 

130 

127 

120

112 

109 

108 

109 

106

121 

124 

162 

244 

246

256 

291 

319 

361 

335

281 

246 

241 

296 

286

254 

229 

222 

211 

192 

196

Jan.

307 

606 

665 

680 

606

550 

522 

522 

481 

508

564 

536 

468 

400 

348

309 

274 

246 

224 

207

192 

182 

178 

171 

162

154 

146 

140 

140 

140 

135

Feb.

133 

130 

127 

135 

133

124 

118 

175 

218 

209

184 

166 

156 

162 

276

335 

468 

481 

400 

348

387 

592 

578 

494 

454

536 

535 

460 

401

» »>, Second 

Month foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary 10

h ......................... 8

ember ..................... 1

60S 

243 

265

675.2

763 

915 

262 

413 

979 

055 

922. 0_ 

706.0 

091.5

ter year 1947-48 .......... 59,222 5

Mar.

360 

325 

288 

258 

237

221 

214 

228 

219 

201

191 

181 

173 

168 

164

172 

164 

173 

173 

172

297 

688 

625 

505 

401

325 

278 

244 

221 

205 

191

Maximum

454 

304 

361

1,120

680 

592 

688 

221 

475 

104 

51 

37 

120

668

Apr.

185 

191 

193 

189 

181

191 

212 

199 

208 

221

210 

193 

181 

172 

166

166 

185 

195 

181 

168

158 

160 

168 

172 

191

175 

166 

153 

146 

137

May

130 

127 

172 

199 

260

475 

416 

360 

290 

246

216 

208 

214 

212 

201

191 

183 

172 

160 

157

146 

135 

128 

120 

114

109 

106 

137 

144 

134 

117

June

104 

97 

92 

88 

85

80 

73 

69 

64 

61

80 

97 

90 

79 

71

64 

61 

60 

57 

65

68 

60 

57 

55 

53

51 

51 

46 

40 

37

Minimum Mean

12 116 

102 175 

106 202

9.1 131

135 347 

118 307 

164 267 

137 180 

106 193 

37 68.5 

18.5 29.7 

16 22.8 

14 36.4

12 162

Peak discharge (base, 600 sec. -ft.).- Jan. 4 (5 a.m.) 695 sec. -ft.; Peb

181 

246 

346 

520

705

1948

July

35 

35 

34 

35 

37

39 

45 

51 

44 

38

34 

32 

30 

29 

27

26 

26 

25 

26 

27

27 

26 

25 

23 

21

19.5 

23 

22 

21 

21 

18.5

Per 

square 

mile

1.81 

2.73 

3.16

2.05

5.42 

4-.80 

4.17 

2.81 

3.02 

1.07 

.464 

.356 

.569

2.53

. 22 (3

Aug.

17 

16 

17 

18 

18.5

26 

22 

18.5 

18.5 

17

16 

16 

18 

18 

18.5

20 

36 

37 

26 

23

23 

22 

20 

25 

33

28 

26 

33 

28 

26 

25

Sept.

21 

18.5 

22 

20 

18.5

17 

17 

15.5 

14.5 

14.5

14 

14 

14 

14.5 

65

61 

39 

26 

21 

18

18.5 

47 

60 

47 

36

45 

120 

103 

85 

65

Runoff

Inches Acre-feet

2.10 7,160 

3.C5 10,400 

3. 64 12,430

27.71 94,580

6.25 21,350 

5.18 17,680 

4.80 16,390 

3.15 10,740 

3.47 11,860 

1.19 4,080 

.54 1,830 

.41 1,400 

.63 2,160

34.41 117.500

p.m.) 621 sec. -ft.;

Mar. 22 (12 m.) 688 sec.-ft.

Mote.- Shifting-control method used Oct. 15 to No 25, Jan. 1 to Peb. 26, Sept. 15-30.
32 CHEHALIS RIVER- BASIN

Rock Creek at Cedar-villa, Wash.

Location.- Water-stage recorder, lat. 46°52 I 05", long. 123°18'25", In SWtrSW^ sec. 15, T. 

16 N., R. 5 W., 0.2 mile downstream from Williams Creek, 1 mile west of Cedarville, and 

1-5- miles upstream from mouth.

Drainage area.- 24.8 square miles.

Records available.- July 1942 to October 1943 (fragmentary), June 1944 to September 1948.

Extremes.- Maximum discharge during year, 1,140 second-feet Mar. 22 (gage I eight, 10.76 

reet), from rating curve extended above 800 second-feet; minimum, 1.7 second-feet 

Sept. 14.

1942-48: 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 below 15 second-feet and those for period of no gageheight record, which are fair. No diversion or regulation.

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

Discharge, in second-feet, water year October 1947 to September 194-8

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.

3.5

19

51

27

16

12

9.7

9.4

13

22

18

14

10

9.1

37

83

218

239

589

234

150

114

103

85

73

67

60

60

55

56

81

NOV.

158

142

120

103

92

96

162

286

201

164

133

114

109

lit

Z53

Z40

188

164

150

130

110

90

80

70

65

61

57

53

49

50

Dec.

53

51

73

74

69

64

58

66

74

68

90

86

120

160

150

140

190

Z70

340

250

182

146

164

253

227

182

158

164

164

147

140

Jan.

230

480

450

380

3OO

290

280

280

230

380

400

340

Z80

230

190

160

130

110

90

80

70

62

56

52

48

45

42

39

38

39

35

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

35

33

32

39

39

35

34

153

240

188

148

121

101

100

220

340

445

^19

234

188

220

502

375

253

240

389

312

220

176

-

Secondfoot-days

2,537.7

3,802

4,373

26,490.8

5,836

5,731

3,766

2,572

3,099

517.3

205.5

130.3

230.8

32,800.6

Mar

150

124

105

93

83

76

72

78

69

63

60

58

55

52

49

47

44

54

62

75

424

699

292

201

152

121

102

89

80

72

65

Maximum

589

286

340

984

480

502

699

135

340

31

11

8.4

37

699"

Apr.

62

66

64

62

61

80

129

111

105

102

94

90

84

78

73

70

73

72

69

66

63

77

89

112

135

126

108

92

84

75

-

May

67

60

86

91

173

340

227

164

132

108

91

91

94

117

142

134

123

109

95

88

76

68

61

55

49

46

43

51

45

39

34

Minimum

3.5

49

51

1.6

35

32

44

61

34

7.5

3.2

2.8

1.9

1.9

June

31

29

27

26

25

23

21

20

18

17

19

20

20

18

17

16

15

14

13

17

17

14

12

11

11

11

10

9.4

8.4

7.5

-

Mean

81.9

127

141 .

72.6

188

198

121

85.7

100

17.2

6.63

4.20

7.69

89.6

July

6.8

6.5

6.0

5.5

8.4

9.7

10

11

9.7

9.1

9.7

8.7

8.4

7.8

7.1

6.5

6.2

5.8

6.2

7.1

7.1

5.8

4.8

4.2

4.0

3.5

4.0

4.8

4.2

3.7

3.2

Per 

square 

mile

3.30

5.12

5.69

2.93

7.58

7.98

4.88

3.46

4.03

.694

.267

.169

.310

3.61

Aug.

3.2

3.3

3.5

3.5

3.5

3.5

3.3

3.2

3.0

3.0

2.8

?.8

3.7

4.0

4.2

5.5

3.4

7.5

5.5

4.2

3.8

4.0

3.2

3.2

4.0

3.8

1.5

3.4

5.8

4.2

3.8

Sept.

3.3

3.2

4.8

5.0

3.5

3.2

2.6

2.3

2.1

2.0

2.0

2.0

1.9

1.9

9.4

8.7

4.8

3.2

3.0

3.0

7.5

22

21

12

6.8

7.5

37

23

13

9.1

-

Runoff

Inches

3.81

5.70

6.56

39.72

8.75

8.59

5.65

3.86

4.65

.78

.31

.20

.35

49.21

Ac re- feet

5,030

7,540

8,670

52,530

11,580

11,370

7,470

5,100

6,150

1,030

408

258 '

458

65,060

Peak discharge (base, 800 sec.-ft.).- Oct. 19 (5 a.m.) 840 sec.-ft.; Mar. 22 (12:3O a.m.) 1,140 

sec.-ft. 

Note.- Ho gage-height record Nov. 19-25, Dec. 7-2O, Dec. 31 to Jan. 27s discharge computed on 

basis of recorded range in stage, high-water mark in well, and records for Elk Creek near Doty.
CHEHALIS RIVER BASIN 33

Porter Creek at Porter, Wash.

Location.- Water-stage recorder, lat. 46°57'00", long. 123°17'30", in NEir sec. 22, T. 17

 N., H. 5 W., 1 mile northeast of Porter and ij miles upstream from mouth.

Drainage area.- 35.9 square miles.

Kecords available.- July 1942 to October 1943 (fragmentary)., June 1944 to November 1948

(discontinued). 

Extremes.- Maximum discharge during period October 1947 to November 1948, 1,150 secondreet Oct. 18, 1947 (gage height, 6.18 feet), from rating curve extended sbove 210

second-feet; minimum, 11 second-feet Oct. 1, 1947.

1942-48: Maximum discharge recorded, 1,360 second-feet Feb. 7, 1945 (gage height,

7.03 feet); minimum recorded, 4.2 second-feet Sept. 11, 1944. 

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

Small diversion for irrigation during summer months. No regulation.

Discharge, in second-feet, 1947-48 

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.

12

113

142

65

42

32

26

29

43

46

43

34

31

29

135

184

473

477

756

384

264

208

194

141

117

108

92

98

82

107

192

Nov.

272

216

188

186

180

214

375

400

292

274

224

194

192

192

266

222

218

190

166

151

132

119

110

103

101

105

89

80

75

87

-

Dec.

101

89

114

92

84

75

74

69

74

74

112

92

208

257

251

270

337

396

360

290

243

216

294

337

272

232

228

236

202

178

204

Jan.

544

680

470

408

283

314

314

285

251

348

326

266

226

202

182

168

157

145

134

126

119

117

125

119

J07

98

92

87

91

87

82

Feb.

82

77

79

89

77

72

74

218

188

149

123

110

101

143

272

311

444

333

243

222

330

533

314

249

278

337

260

216

190

_

-

Mar.

188

170

155

143

136

130

130

136

125

116

112

108

105

101

99

101

94

107

108

110

415

488

260

208

182

160

147

140

130

125

125

Apr.

128

141

132

128

123

149

149

138

168

174

160

147

140

130

146

168

188

172

158

149

147

178

178

191

198

172

155

141

132

123

-

May

114

108

186

166

282

434

277

222

1S6

164

151

170

200

210

200

200

210

180

150

135

125

115

110

103

94

91

92

143

110

96

84

June

80

74

72

69

66

58

53

50

48

47

69

64

58

53

47

46

46

47

45

58

53

46

42

40

40

40

37

33

30

30

-

July Aug.

30 21

30 21

28 22

30 25

34 31

40 25

42 21

39 20

33 19

30 19

28 20

27 22

26 22

24 22

22 24

21 35

21 30

22 25

25 24

26 25

25 23

22 22

22 20

21 21

19 27

18 25

25 27

29 31

25 29

23 26

22 26

Sept.

22

28

43

32

26

23

21

19

18

16

17

18

17

19

109

61

42

35

30

28

5?.

110

77

57

46

86

132

91

74

61

"

Peak' discharge (base, 1,000 see.-ft.).- Oct.. 18 (11:30 p.m.) 1,150 sec.-ft.; Jan. 1 (6:30 p.m.)

Note.- No gage-height record May 12-23, July 28 to Aug. 31j discharge computed on basis of 

records for Cloquallum River at Elraa.

Day

1

2

3

4

5

6

Oct.

51

46

48

117

91

99

Nov.

55

92

168

132

141

110

Day

7

8

9

10

11

12

Oct.

168

128

99

134

153

116

Nov.

96

-

_

-

_

_

Day

13

14

15

16

17

18

Oct.

98

86

77

69

61

57

Mov.

.

-

_

-

_

_

Day

19

20

21

22

23

24

Oct.

54

53

50

47

51

96

Nov.

-

-

-

-

-

-

Day

25

26

27

28

29

30

31

Oct.

80

58

51

48

47

58

63

Nov.

-

-

-

-

-

-

-

Peak discharge (base, 1,000 see.-ft.).- No peak above base

Monthly discharge, in seeond-feet, 1947-48

Month

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

February

Maroh ............. . . ........

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

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

Water year 1947-48 ...... ...

November 1-7 ...................

Secondfoot-days

4,699 

5,613 

6,061

46,017.6

6,953 

6,114 

4,854 

4,603 

5,108 

1,541 

829 

750 

1,410

48,535

2,454 

794

Maximum

756 

400 

396

1,300

680 

533 

488 

198 

434 

80 

42 

35 

132

756

168

168

Minimum

12 

75 

69

8.6

82 

72 

94 

123 

84 

30 

18

}9 

16

12

46

55

Mean

152 

187 

196

126

224 

211 

157 

153 

165 

51.4 

26.7 

24.2 

47.0

133

79.2 

113

Per 

square 

mile

4.23 

5.21 

5.46

3.51

6.24 

5.88 

4.37 

4.26 

4.60 

1.43 

.744 

.674 

1.31

3.70

2.21 

3.15

Runoff

Inches

4.87 

5.81 

6.28

47.66

7.20 

6.33 

5.03 

4.77 

5.29 

1.60 

.86 

.78 

1/46

50.28

2.54 

.82

Acre-feet

9,320 

11,130 

12,020

91,270

13,790 

12,130 

9,630 

9,130 

10,130 

3,060 

1,640 

1,490 

2,800

96,270

4,870 

1,570
34 CHEHALIS RIVER BASIN

Cloquallum River at Elma, 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 dovmstream from Wildcat Creek.

Drainage area.- 66 square miles .

Records available.- July 1942 to October 1943 (fragmentary), July 1944 to September 1948.

Extremes . - Maximum discharge during year, 1,810 secorjd-feet Mar. 22 (gage height, 6.95 

feet)T minimum, 22 second-feet Oct. 1 (gage height, 1.99 feet).

1942-48: Maximum discharge recorded, 3,290 second-feet Jan. 25, 1947 (gage height, 

9.53 feet); minimum, 6.8 second-feet Sept. 15, 1945 (gage height, 1.43 feet).

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

control, which are fair. Several small diversions on minor tributaries above station 

and some regulation by log pond on Wildcat Creek.

Rating tables, water year 1947-48, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet)

Oct. 19 to Sept. 3O

1.9 

2.1 

2.3 

2.5 

2.7

93

137

2.9 

3.1 

3.5 

4.0 

4.5

186

237

345

490

655

1.9 

2.1 

2.3 

2.5

2.7

76

118

165

3.0 

3.3 

3.6 

4.0 

4.5

242

324

410

535

710

5.0 

5.5 

6.O 

6.5

91O 

1,110 

1,330 

1,560

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30

Oct.

23 

189 

178 

101 

68

55 

47 

47 

SI 

60

57 

50 

45 

44 

126

216

402 

507 

1,190 

518

338 

253 

261 

226 

203

195 

180 

180 

168 

247 

396

Nov.

570 

440 

361 

302 

272

296 

361 

396 

321 

335

280 

250 

264 

253 

396

346 

369 

335 

288 

258

226 

203 

188 

178 

178

188 

172 

163 

158 

168

Dec.

195 

185 

224 

211 

200

190 

190 

185 

188 

190

226 

216

318 

410 

396

457 

552 

640 

622 

485

410 

372 

470 

658 

535

440 

440 

500 

440 

381 

410

Jan.

862 

1,380 

1,010 

870 

658

640 

658 

605 

535 

675

710 

588 

485 

410 

366

324 

291 

266 

247 

226

211 

203 

195 

182

172

160 

151 

143 

143

141

134

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber .......................

mber ................. .

mber ......................

lendar year 1947 

ary

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

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

ter year 1947 48 ...... ...

Feb.

134 

130 

132 

165 

146

127 

127 

382 

381 

307

258 

229 

208 

244 

455

557 

750 

658 

470 

396

517

970 

675 

518 

588

850 

730 

518 

425

Secondfoot-days

6,621 

8,515 

11,336

80,766

13,641 

12,047 

10,247 

6,742 

9,374 

2,833 

1,645 

1,293 

1,735

86,029

Mar.

410 

346 

302 

274 

261

247 

253 

269 

237 

221

211

203 

203 

206

190

188 

175 

211

213 

211

668 

1,410

750 

535 

425

349 

307 

274 

250 

232 

216

Maximum

1,190 

570 

658

2,570

1,380 

970 

1,410 

375 

995 

134 

85 

61 

216

1,410

Apr.

208 

239 

221 

213 

208

237 

245 

221 

245 

247

229 

221 

213 

200 

195

193 

219 

206 

188 

180

178 

195 

208 

257 

375

304 

261 

232 

211 

193

May

178 

168 

276 

258 

495

995 

675 

535 

410

341

288 

304 

310 

361 

330

330 

338 

285 

258 

239

216 

206 

190 

172 

165

160 

160 

232 

188 

163 

148

Minimum

23 

158 

185

20

134 

127 

175 

178 

148 

61 

41 

35 

29

23

June

134 

127

123 

118 

114

110 

106 

102 

100 

98

95 

92 

90 

88 

86

83 

82 

84 

80 

100

125 

105 

92 

84 

78

74 

70 

68 

64

61

Mean

214 

284 

366

221

440 

415 

331 

225 

302 

94.4 

53.1 

41.7 

57.8

235

July

58 

56 

55 

60 

70

85 

82 

75 

64 

58

54 

51 

48 

46 

45

44 

43 

43 

45 

55

50 

45 

44 

43 

41

41 

45 

60 

52 

45 

42

Per 

square 

mile

3.24 

4.30 

5.55

3.35

6.67 

6.29 

5.02 

3.41 

4.58 

1.43 

.805 

.632 

.876

3.56

Aug.

39 

40 

40 

39 

42

48 

42 

39 

37 

36

37 

37 

41 

41 

41

42 

61 

54 

41 

39

40 

37 

35 

44 

46

40 

43 

48 

41 

42 

41

Sept.

35 

36 

46 

39 

35

33 

32 

30 

30 

29

29 

30 

29 

31 

102

66 

47 

40 

37 

35

43 

92 

103 

76 

59

80 

216 

118 

86 

71

Runoff

Inches

3.73 

4.80 

6.39

45.52

7.69 

6.79 

5.77 

3.80 

5.28 

1.60 

.93 

.73 

.98

48.49

Ac re- feet

13,130 

16,890 

22,480

160,200

27,060 

23,890 

20,320 

13,370 

18,590 

5,620 

3,260 

2,560 

3.440

170,600

Peak discharge (base. 1.5OO see.-ft.).- Oct. 19 (5 a.m.) 1,510 sec.-ft.; Mar. 22 (3:30 a.m.) 1,810 sec.-ft. 

Note.- No gage-height record June 6-27, June 29 to Aug. 1; discharge computed on basis of recorded 

range In stage and records for Elk Creek near.Doty. Shifting-control method used Jan. 6 to Feb. 25, 

Aug. 2 to Sept. 30.
CHEHALIS RIVER BASIN 35

Satsop River near Satsop, Wash.

Location.- Water-stage recorder, lat. 47°00'05", long. 123°29'40", in sec. 36, T. 18 N.,

 K. V W., I mile west of Satsop and if miles upstream from mouth. Datum of gage is at 

mean sea level, datum of 1929.

Drainage area.- 315 square miles.

Records available.- March 1929 to September 1948.

Average discharge.- 19 years, 1,863 second-feet.

Extremes.- Maximum discharge during year, 17,300 second-feet Oct. 19 (elevation, 32.06

 feet); minimum, 281 second-feet Sept. 13, 14, but may have been less Oct. 1 during 

period of no gage-height record.

1929-48: 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 discharg 

166 second-feet Sept. 21, 1938.

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

and those for period of no gage-height record, which are poor. No diversion or 

regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

a300 

a3 , 200 

a4,000 

a3 , 200 

a2 , 500

al , 500 

al.OOO 

al,000 

al,900 

al,700

al,500" 

al,300 

al,100 

al.OOO 

aZ.ZOO

3,450 

4,600 

7,270 

11,600 

5,940

3,450 

2,550 

2,550 

2,240 

1,950

2,000 

1,770 

2,080 

2,160 

2,390 

4,190

Nov.

5,830 

3,820 

2,950 

2,550 

2,160

2,080 

2,240 

2,310 

2,160 

2,080

1,860 

1,710 

1,860 

1,820 

2,080

2,010 

2,160 

2,160 

1,950 

1,740

1,560 

1,410 

1,280 

1,170 

1,130

1,140 

1,020 

960 

885 

922

Dec.

1,220 

1,100 

1,350 

1,420 

1,310

1,220 

1,140 

1,060 

1,090 

1,040

1,170 

1,170 

2,950 

4,020 

3,030

3,030 

6,380 

8,180 

7,040 

4,640

3,630 

3,360 

7,210 

9,100 

5,500

4,020 

3,820 

4,430 

3,630 

3,110 

3,110

Jan.

8,460 

12,200 

,040 

,820 

,280

,170 

,850 

,740 

,120 

,430

,640 

,820 

,200 

,790 

,550

,240 

,080 

,950

,820 

,680

,560 

,490 

,450 

,360 

,290

,220 

,150 

,090 

,080 

1,040 

948

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apr! 

May 

June 

July 

Augti 

Sept

ffa

mber ......................

lendar year 1947 .........

ary

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

ter year 1947-48. .........

Feb.

922 

828 

850 

922 

850

804 

770 

,460 

,770 

,530

,360 

,240 

,180 

,540 

,540

,120 

,260 

,040 

,430 

,360

,820 

,600 

,280 

,02O 

,920

5,500 

4,960 

3,920 

3,280

Secondfoot-days

87,590 

59,OC7 

104,4 ,0

696,468

103,558

88,076 

70,910 

62,140 

83,570 

SO, 063 

12,304 

10,897 

27,878

730,473

Mar.

3,030 

2,710 

2,390 

2,160 

2,010

1,890 

1,800 

1,780 

1,620 

1,500

1,430 

1,360 

1,340 

1,320 

1,240

1,210 

1,140 

1,240 

1,290 

1,240

3,790 

10,300 

5,060 

3,540 

2,790

2,390 

2,080 

1,960 

1,900 

1,800 

1,600

Maximum

11,600 

5,830 

9,100

19,200

12,200 

7,260 

10,300 

3,820 

7,490 

985 

510 

485 

2,630

12,200

Apr.

1,520 

1,530 

1,460 

1,430 

1,420

1,490 

1,650 

1,560 

1,740 

2,160

2,010 

1,900 

1,960 

2,010 

2,010

2,310 

2,310 

2,160 

1,960 

1,820

1,720 

2,240 

3,200 

3,280 

3,820

3,110 

2,550 

2,160 

1,940 

1,710

May

1,560 

1,420 

2,360 

3,200 

3,720

7,490 

5,390 

3,820 

3,030 

2,550

2,240 

2,240 

3,450 

6,380 

5,170

3,720 

3,110 

2,710 

2,310 

2,080

1,940 

1,800 

1,620 

1,480 

1,410

1,280 

1,240 

1,360 

1,290 

1,150 

1,050

Minimum

300 

885 

1,040

249

948 

804

1,140 

1,420 

1,050 

46£ 

325 

295 

295

295

June

985 

922 

874 

828 

804

782 

728 

718 

686 

656

696 

738 

686 

686 

676

646 

618 

608 

608

636

656 

618 

570 

562 

562

544 

528 

502 

478 

462

Mean

2,825 

1,967 

3,370

1,908

3,341 

3,037 

2,287 

2,071 

2,696 

669 

397 

352 

929

1,996

July

448 

440 

440 

44O 

455

485 

510 

470 

455

425

410 

404 

397 

390 

384

378 

364 

371 

364 

371

364 

358 

358 

352 

340

340 

390 

384 

352 

340 

325

Per 

square 

mile

8.97 

6.24 

10.7

6.06

10.6 

9.64 

7.26 

6.57 

8.56 

2.12 

1.26 

1.12 

2.95

6.34

Aug.

325 

325

325 

320 

330

378 

335 

320 

315 

300

300 

295 

310 

320 

310

340 

364 

371 

330 

320

345 

485 

390 

384 

384

364 

364 

390 

384 

404 

470

Sept.

425 

397 

528 

510 

448

404 

371 

352 

330 

315

310 

300 

295 

300 

1,560

1,840 

1,08O 

760 

627 

536

850 

1,680 

1,980 

1,640 

1,270

2,630 

1,880 

1,710 

1,410 

1,140

Runoff

Inch3S

10.34 

6.97 

12.34

82.23

12.23 

10.40 

8.37 

7.34 

9.87 

2.37 

1.45 

1.29 

3.29

86.26

Acre-feet"

173,700 

117,000 

207 , 200

1,381,000

205,400 

174,700 

140,600 

123,300 

165,800 

39,790 

24,400 

21,610 

55,300

L, 443,000

Peak discharge (base, 13,500 sec. -ft.).- Oct. 19 (7:30 a.m.) 17,300 sec. -ft.; Jan. 2 (l a.m.}

16,800 sec.-ft.; Mar. 22 (4 a.m.) 14,000 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage and record's for 

Wynoochee River below Black Creek, near Montesano.

Mote.- Shifting-control method used Oct. 20 to Dec. 18, Jan. 6 to Mar. 24, May 29 to Sept. 30.
3G CHEHALIS RIVKR BASIN

Bingham Creek near Matlock. Wash.

Location.- Water-stage recorder, lat. 47°09'40", long. 123°23'50", in SE^ sec. 2, T. 19 

N., l!\ 6 W. , 1-J- miles upstream from mouth and 5_i miles south of Matlook.

Records available.- April 1946 to October 1948 (discontinued).

Extremes.- Maximum discharge during period October 1947 to October 1948, 1,100 second-feet 

Jan. 2 (gage height, 4.98 feet); minimum, 22 second-feet Oct. 1, 1947 (gage height, 2.08 

feet).

1946-48: Maximum discharge, 2,250 second-feet Jan. 25, 1947 (gage height, 6.40 

feet); minimum, 19 second-feet Oct. 15, 1946 (gage height, 2.04 feet).

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

fair. No diversion or regulation.

Discharge, in second-feet, 1947-48 

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.

24

66

52

62

60

50

44

44

48

52

52

50

50

48

82

128

171

302

715

406

276

213

202

175

161

149

141

145

139

152

218

Nov.

302

251

218

193

175

168

165

163

154

154

145

141

152

147

163

152

165

158

152

143

136

130

126

120

120

120

114

110

108

112

-

Dec.

116

114

122

118

114

112

110

106

106

104

110

130

210

210

19O

250

350

470

430

360

330

320

410

510

370

330

320

340

290

245

273

Jan.

570

850

595

577

489

461

437

414

381

403

395

353

322

283

260

239

224

210

199

188

178

170

163

156

152

145

141

136

132

130

126

Feb.

124

120

118

120

114

112

110

147

154

141

130

114

100

143

230

257

388

395

329

276

326

421

374

329

326

374

360

322

276

_

-

Mar.

260

239

218

204

193

183

173

170

161

154

149

145

141

139

134

132

128

134

130

130

248

497

356

286

245

218

202

186

175

165

158

Apr.

154

154

152

149

145

149

152,

143

149

152

149

145

143

139

l.-;r,

139

143

141

134

130

130

139

152

170

191

178

163

156

149

141

-

May

136

130

173

J.91

233

378

346

273

233

210

191

193

207

276

283

251

227

207

191

180

170

163

156

147

141

136

134

145

134

126

120

June

116

112

110

106

104

100

96

94

92

90

94

90

88

86

84

82

80

78

76

78

76

73

73

71

71

69

67

65

64

62

-

July

62

60

60

58

58

58

58

58

57

55

55

53

53

52

50

50

50

48

48

48

47

46

46

46

44

44

44

42

42

42

42

Aug.

42

42

42

42

44

42

41

40

40

38

38

38

38

36

40

38

36

36

34

34

35

34

34

34

34

34

34

34

33

34

33

Sept.

32

32

33

32

31

30

30

30

30

30

30

30

30

31

44

35

32

31

30

30

32

41

46

44

47

52

71

65

62

58

-

Peak discharge (base, 800 sec. -ft.).- Oct. 19 (8:30 a.m.) 880 sec. -ft.; Jan. 2 (2 a.m.) 1,100

ee.-rt.

Note.- No gage-height record Dec. 7-29; discharge computed on basis of recorded renge in stage 

and records lor nearby streams.

Day

Oct. 1 

2 

3 

4 

5

Discharge Day

IE l^- 67

5O 8 

64 9 

62 |] 10

Discharge

62 

84 

90 

80 

80

Day

Oct. 11 

12

13 

14 

15

Discharge

86 

78 

76 

73 

67

Day

Oct. 16 

17 

IB 

19 

20

Discharge

64 

62

58 

58 

57

Monthly discharge. In second-feet, 1947-48

Month

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

Water year 1947-48 .......................

October 1-20, 1948. .........................

Secondfoot-days

DO, too

2 547

55,942

1,356

Maximum

302

850

90

Minimum

24

50

Mea-i

1^5

37 2

153

67.8

Runoff In 

acre-feet

111,000

2,690
CHEHALIS RIVER BASIN 37

Wynoochee River at Oxbow, near Aberdeen, Wash.

Location.- Water-stage recorder, lat. 47°20', long. 123°39', in SW^SW^ sec. 1, T. 21 N., R. 

b W., at Oxhow,25 miles northeast of Aberdeen.

Drainage area.- About 65 square miles (uncertain because of inadequate maps). 

Records available.- May 1925 to September 1948. 

Average discharge.- 23 years, 759 second-feet.

Extremes.- Maximum discharge during year, 10,700 second-feet Oct. 18 (gage height, 15.32 

feet), from rating curve extended above 3,000 second-feet; minimum, 140 second-feet 

Aug. 12, 13 (gage height, 1.30 feet).

1925-48: Maximum discharge, 18,000 second-feet Jan. 22, 1935 (gage height, 30.3 

feet, from floodmarlcs, site and datum then in use), from rating curve extended above 

5,300 second-feet; minimum, 76 second-feet Sept. 23, 1930.

Remarks. Records good. No diversion or regulation.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1-29, 

Dec. 24 to Mar. 21, Aug. 21 to Sept. 2)

1.3 

1.5 

1.7 

2.0 

2.3

140

222

323

511

735

2.6 

3.O 

3.5 

4.0 

4.5

l.OOO 

1,390 

1,890 

2,390 

2,890

5.0 3,390

6.0 4,350

7.0 5,190

8.2 5,900

Discharge, in secona-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2B 

29 

3O 

31

Oct.

148 

3,670 

1,940 

1,540 

946

663 

504 

891 

1,390 

1,000

8 2O 

611 

567 

518 

2,210

1^640 

2,640 

4,140 

4,360 

1,840

1,340 

1,140 

1,270 

1,070 

1.08O

1,140 

1,060 

1,840 

1,390 

1,540 

3,080

Nov.

2,290 

1,640 

1,340 

1,190 

1,050

1,040 

1,180 

1,270 

1,O40 

1,OOO

91O 

829 

865 

794 

786

744 

991 

9O1 

786 

711

648 

588 

539 

511 

511

504 

471 

451 

431 

464

Dec.

498 

491 

687 

611 

532

491 

471 

444 

444 

438

451 

484 

2,920 

1,640 

1,340

1,960 

3,090 

4,260 

2,340 

1,640

1,640 

1,640 

5,880 

2,790 

1,840

1,440 

2,290 

1,940 

1,440 

1,200 

1,740

Jan.

5,110 

3,050 

2,090 

1,840 

1,490

1,790 

1,690 

1,690 

1,44O 

1,540

1,340 

1,130 

1,010 

919 

829

769 

735 

695 

663 

625

588 

567 

560 

546 

498

457 

438 

425 

419 

400 

381

Feb.

369 

352 

352 

34O 

323

302

312 

375 

352 

329

307 

296 

291 

670 

1,24O

1,030 

3,040 

3,100 

1,490 

1,130

1,170 

2,040 

1,440 

1,170 

1,220

1,590 

1,340 

1,090 

937

Month

Octo 

Move 

Dace

Ca

Janu 

Pebr 

Here 

Apri 

May

June 

July 

Augu 

Sept

Wa

lendar year 194

ter year 1947-48 .......................

Mar.

892 

786 

703 

640 

596

553 

539 

498 

478 

457

425 

419 

412 

400 

387

375 

369 

400 

400 

381

2,530 

2,370 

1,260 

964 

820

727 1 

655 

663 

719 

655 

603

Apr.

574 

546 

525 

511 

504

525 

525 

504 

640 

760

679 

648 

786 

778 

1,020

1,290 

1,250 

1,090 

928 

883

937 

1,640 

1,890 

1,640 

1,440

1,140 

955 

847 

744 

671

Seeondfoot-days

47,988 

26,475 

49,072

297,319

35,724 

27,997 

22,076 

26,870 

39,418 

17,599 

7,723 

5,768 

17,215

323,925

May

618 

588 

1,280 

1,390 

1,590

2,390 

1,690 

1,280 

1,070 

928

838 

964 

2,490 

2,690 

1,840

1,640 

1,490 

1,250 

1,090 

1,050

1,130 

1,070 

937 

1,020 

1,170

1,100 

1,090 

1,130 

955 

838 

812

Maximum

4,360 

2,290 

5,880

7,590

5,110 

3,100 

2,530 

1,890 

2,690 

910 

353 

296 

1,840

5,880

June

829 

838 

847 

760 

76O

838 

901 

910 

847 

727

679 

648 

611 

567 

539

504 

471 

444 

444 

484

464 

425 

400 

387 

375

, 369 

369 

381 

400 

381

July

352 

323 

312 

312 

307

323 

318 

296 

275 

265

265 

256 

246 

241 

236

236 

232 

227 

241 

218

213 

204 

204 

191 

182

200 

256 

213 

196 

196 

187

Minimum

148 

431 

438

115

381 

291 

369 

504 

588 

369 

182 

140 

187

140

Aug.

178 

178 

174 

170 

174

174 

167 

163 

159 

151

148 

140 

159 

151 

170

170 

170 

167 

151 

155

275 

251 

200 

196 

187

174 

204 

222 

213 

296 

281

Kern

1,548 

882 

1,583

815

1,152 

965 

712 

896 

1,272 

587 

249 

186 

574

885

Sept.

241 

425 

603 

412 

346

302 

275 

260 

241 

218

204 

191 

187 

266 

1,840

1,070 

695 

518 

438 

419

1,000 

1,050 

1,010 

803 

633

633 

865 

847 

663 

560

Runoff in 

acre-feet

95,180 

52,510 

97,330

589,700

70,860 

55,530 

43,790 

53,300 

78,180 

34,910 

15,320 

11,440 

34,150

642, 50O

Peak discharge (base, 6,800 sec.-ft.).- Oct. 2 (8 a.m.) 8,210 sec.-ft.; Oct. 18 (10-p.m.) 10,700 

sec.-ft.; Dec. 23 (12 m.) 8,420 sec.-ft.; Jan. 1 (4 p.m.) 8,210 sec.-ft.
38 CHEHALIS RIVER BASIN

Wynoochee River below Black Creek, near Montesano, Wash.

Location.- Water-stage recorder, lat. 47°00'35", long. 123°39'00", in NWljNWij sec. 35, T.

 18 tl. , R. 8 W., at county road bridge, 500 feet downstream from Black Creek and 2 5 

miles northwest of Montesano.

Records available.- July 1942 to September 1948.

Extremes.- Maximum discharge during year, 13,400 second-feet Oct. 19 (gage height, 79.78

 feet), from rating curve extended above 8,100 second-feet; minimum, 127 second-feet 

Aug. 12, 13 (gage height, 69.19 feet).

1942-48: Maximum discharge observed, 16,600 second-feet Feb. 8, 1945 (gage height, 

82.65 feet); minimum observed, 51 second-feet Sept. 11, 1944.

Remarks.- Records good except those for period of shifting control, which ere fair. City

 of Aberdeen diverts about 56 second-feet continuously ij miles above stEtion. No regulation.

Rating table, water year 1947-48, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

69.2 130 70.6 970 

69.4 202 71.0 1,380 

69.7 342 71.5 1,930 

70.0 510 72.0 2,520 

70.3 715 72.5 3,160

Discharge, in second-feet, water year Oc

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

130 

2,760 

3,040 

2,510

1,590

1,120 

845 

845 

1,700 

1,480

1,270 

1,020 

890 

845 

1,900

3,170 

3,350 

4,930 

9,670 

4,440

2,870 

2,150 

2,150 

1,920 

1,700

1,810 

1,590 

2,150 

2,270 

2,270 

3,520

Nov.

,720 

,000 

,390 

,030 

,810

,700 

,030 

,510 

,150 

,920

,810 

,590 

,590 

,590 

,700

,700 

,700 

,810 

,590 

,480

,270 

,170 

,070 

980 

935

935 

845 

800 

720 

720

Dec.

845 

845 

980 

1,070 

1,020

980 

935 

845 

845 

800

845 

845 

2,040 

3,390 

2,270

2,270 

5,000 

5,700 

4,580 

3,000

2,390 

2,390 

6,060 

6,680 

4,040

2,870 

3,130 

3,780 

2,870 

2,390 

2,390

Jan.

6,200 

8,770 

5,010 

4.860 

3,700

3,560 

3,420 

3,420 

3,030 

3,030

3,100 

2,700 

2,280 

1,980 

1,760

1,600 

1,440 

1,340 

1,240 

1,150

1,060 

1,010 

961 

934 

854

820 

755 

708 

670 

655 

613

Feb.

586 

566 

553 

553 

547

529 

510 

970

1,170 

1 , 050

854 

763 

700 

838 

2,960

2,580 

4,560 

5,010 

3,100 

2,280

2,520 

4,260 

3,290 

2,520 

2,520

3,420 

3,160 

2,520 

2,040

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Peak discharge (base, 8,900 sec. -ft.).- Oc

10,300 sec. -ft.; Jan. 2 (1 a.m.) 12,300 sec.

Mar.

,880 

,710 

,490 

,290 

,170

1,070 

990 

980 

934 

863

804 

771 

731 

723 

708

692 

662 

655 

692 

700

2,380 

6,830 

3,290 

2,280 

1,760

1,440 

1,250 

1,130 

1,090 

1,060 

952

73.0 3,840 

74.0 5,310 

75.0 6,850 

76.2 8,770

tober 1947 to September 1943

Apr.

1

1

1 

1

Secondfoot-days

71,905 

50,265 

78,095

491,338

72,630 

56,929 

42,977 

43,509 

63,800 

20,061 

7,935 

5,542 

20,371

534,019

880 

880 

863 

846 

872

907 

020 

961 

990 

280

270 

180 

210 

260 

270

710 

820 

710 

490 

380

320 

820 

700 

640 

960

280 

820 

600 

380 

190

May

1,080 

990 

1,600 

2,460 

2,640

5,160 

3,700 

2,580 

2,040 

1,710

1,490 

1,440 

2,900 

4,560 

3,560

2,770 

2,520 

2,100 

1,820 

1,600

1,540 

1,540 

1,380 

1,290 

1,440

1,440 

1,440 

1,440 

1,380 

1,150 

1,040

Maximum

9,670 

4,720 

6,680

14,100

8,770 

5,010 

6,830 

2,960 

5,160 

1,010 

384 

307 

1,600

9,670

June

1,010 

970 

990 

925 

872

872 

898 

970 

925 

854

739 

747 

715 

670 

655

599

572 

541 

510

516

553 

522 

492 

445 

440

434 

412 

401 

406 

406

July

384 

347 

332 

317 

322

358 

358 

337 

317 

292

283 

268 

250 

236 

236

232 

232 

228 

232 

232

206 

194 

194 

187 

172

183 

228 

241 

198 

175 

164

Aug.

161 

157 

157 

154 

157

179 

161 

147 

137 

133

130 

130 

140 

154 

140

157 

168 

172 

161 

147

172 

250 

219 

211 

215

198 

206 

236 

241 

245 

307

Sept.

287 

254 

529 

510 

395

342 

292 

250 

228 

206

198 

179 

168 

172 

1,180

1,600 

880 

640 

510 

445

678 

1,300 

1,380 

1,190 

907

829 

1,490 

1,370 

1,090 

872

Minimum Mean H-nott^

130 2,320 142,600 

720 1,676 99,700 

800 2,519 154,900

96 1,346 974,500

613 2,343 144,100 

510 1,963 112,900 

655 1,386 85,240 

846 1,450 86,300 

990 2,058 126,500 

401 669 39,790 

164 256 15,740 

130 179 10,990 

168 679 40,410

130 1,459 1,059,000

b. 19 (9 a.m.) 13,400 sec. -ft.; Dec. 23 (10:30 p.m.) 

-ft.; Mar. 22 (5 a.m.) 8,930 sec. -ft.
HUMPTULIPS RIVER BASIN 39 

Humptulips River near Humptulips, Wash.

Location.- Staff gage, lat. 47°13'45", long. 123°56'30", in NE^ sec. 17, T. 20 N., R. 10 

W., at abandoned bridge site, 1 mile southeast of Humptulips, 2.5 miles upstream from 

Stevens Creek, and 3-f miles downstream from Porks. Datum of gage is 117.4 feet above 

mean sea level (river-profile survey).

Drainage area.- 125 square miles.

Records available.- May 1933 to January 1935, July 1942 to September 1948.

Extremes.- Maximum discharge observed during year, 11,800 second-feet Dec. 23 (gage

neight, 8.24 feet); minimum observed, 162 second-feet Aug. 12 (gage height, 0.99 foot). 

1933-35, 1942-48: Maximum discharge, 21,200 second-feet Jan. 22, 1935 (gage height, 

12.7 feet, from floodmarks), from rating curve extended above 5,500 seco-id-feet; 

minimum observed, 82 second-feet Sept. 11, 1944 (gage height, 0.83 foot).

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

Uage read twice daily. No diversion or regalation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

189

5, 740

5, 140

3,690

1,990

840

840

1,060

2,100

1,450

1,250

1,020

970

840

3,200

2,600

3,040

4,210

7,240

3,520

2,340

1,880

1,990

1,660

1,450

1,660

1,350

2,220

1,880

2,100

3,200

Nov.

,690

,740

,880

,660

,450

,450

,100

,740

,990

,770

,660'

,450

,550

,450

,450

,350

,660

,550

,350

,200

1,060

970

925

840

840

840

800

760

680

680

"

Dec.

925

840

1,250

1,150

970

880

840

760

80 :

800

880

840

4,210

3,040

1,990

2,340

4,950

7,240

4,390

2,740

2,100

2,220

8,140

5,540

3,360

2,470

3,690

3,690

2,600

2,100

2,470

Jan.

8,140

8,140

4,390

3,860

2,890

,200

,740

,890

,340

,600

,470

,390

,660

,450

,350

,150

,100

,020

925

880

800

760

760

680

640

605

570

540

540

540

510

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947 48 ..........

Feb.

480

450

450

450

425

450

450

970

880

840

720

605

540

1,200

3,200

2,470

5,740

4,950

2,890

1,880

2,100

4,570

3,200

2,220

2,220

3,520

2,740

2,100

1,660

-

-

Secondfoo.t-days

72,659

44,535

80,125

477,631

62,130

54,370

39,280

38,100

53,650

14,076

7,206

7,771

22,725

496,717

Mar

,770

,450

,250

,150

,060

970

925

980

880

800

720

680

680

640

605

605

570

720

720

720

3,360

5,740

2,600

1,880

1,450

1,250

1,100

1,060

1,100

1,020

925

Maximum

7,240

3,690

8,140

12,600

8,140

5,740

5,740

2,300

4,400

760

310

450

1,660

8,140

Apr.

880

880

880

880

880

900

1,000

950

,050

,300

,200

,150

,250

,300

,350

,400

,400

,250

,150

,050

,300

,600

,950

,OOO

,300

,850

,500

,300

,150

,050

-

May

940

860

1,100

1,950

2,300

4,400

3,100

2,300

1,800

1,550

1,350

1,350

2,100

4,100

3,200

2,400

2,100

1,750

1,600

1,450

1,400

1,300

1,250

1,150

1,150

1,050

1,020

1,060

970

840

760

Minimum

189

680

760

168

510

425

570

880

760

290

183

165

250

165

June

760

720

680

640

605

605

605

605

570

540

510

510

480

480

450

425

400

378

378

400

425

378

355

355

332

310

310

290

290

290

-

Mean

2,344

1,484

2,586

1,309

2,004

1,875

1,267

1,270

1,731

469

232

251 7581

1,357

July

290

270

266

258

262

290

290

290

258

246

246

238

226

220

212

212

206

202

206

198

195

195

195

189

183

198

310

262

209

195

189

Per 

square 

mile

18.8

11.9

20.7

10.5

16.0

15.0

10.1

10.2

13.8

3.75

1.86

2.01

6.06

10.9

Aug.

183

]

]

]

83

77

77

186

202

]:

:

86

77

77

171

168

1

1

1

65

77

74

183

216

1

1

1

95

98

83

189

450

3

Z

3

78

90

32

310

310

3

3

3

4

78

78

78

50

450

Sept.

378

378

800

570

480

400

355

332

310

290

266

258

250

258

1,450

1,450

800

570

480

450

970

1,55O

1,660

1,200

925

970

1,450

1,450

1,100

925

Runoff

Inches

21.62

13.25

23.87

142.11

18.48

'16.18

11.69

11.34

15.96

4.19

2.14

2.31

6.76

147.79

Ac re- feet

144,000

88,330

159,100

947,300

123,200

107,800

77,910

75,570

106,400

27,920

14,290

15,410

45,070

985,100

'Note.- Ho gage-height record Apr. 4-14. Apr. 16 to May 24. May 26; discharge computed on basis of 

records for Satsop Elver near Satsop.

939922 O - 51 - 4
4U QUINAULT RIVER BASIN

Quinault River at Quinault Lake, Wash.

Location - Water-stage recorder, lat. 47°27'30", long. 123°53'30", in sec. 25, T. 23 N., 

FT! 10 W., at outlet of Quinault Lake and 4 miles southwest of Quinault.

Drainage area.- 264 square miles.

Records available.- October 1911 to September 1948.

Average discharge.- 37 years, 2,671 second-feet.

Extremes.- Maximum discharge during year, 17,100 second-feet Oct. 19 (gage height, 11.54 

feet); minimum, 468 second-feet Oct. 1 (gage height, 2.34 feet).

1911-22, 1924-32, 1933-48: Maximum discharge, 37,000 second-feet Dec. 12, 1921 

(gage height, 16.3 feet, datum then in use), from rating curve extended above 25,000 

second-feet; minimum, 276 second-feet Sept. 12, 1944 (gage height, 1.96 feet).

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

Slight natural regulation by Quinault Lake. No diversion.

Revisions.- W 442: Drainage area.

Rating table, water year 1947-48, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

Z.3 445 4.5 2,530 8.0 8,700 

2.6 630 5.0 3,250 9.0 10,800 

3.0 940 5.5 4,040 10.0 13,100 

3.5 1,400 6.0 4,880 11.0 15,700 

4.0 1,920 7.0 6,700

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

497 

2,780 

5,220 

5,400 

4,120

3,100 

2,400 

2,270 

3,320 

3,560

3,320 

2,810 

2.530 

2,270 

3,680

5,760 

6,790 

9,210 

15,700 

10,400

6,900 

5,050 

4,200 

3,640 

3,320

3,400 

3,100 

3,640 

3,960 

4,040 

5,260

Nov.

7,500 

6,130 

4,880 

4,040 

3,400

3,180 

3,480 

4,540 

4,200 

3,800

3,480 

3,100 

2,950 

2,810 

2,600

2,460 

2,600 

2,810 

2,670 

2,400

2,270 

2,090 

1,920 

1,810 

1,760

1,860 

1,810 

1,700 

1,650 

1,600

Dec.

1,600 

1,600 

1,760 

1,810 

1,700

1,600 

1,550 

1,450 

1,400 

1,400

1,400 

1,400 

3,260 

5,220 

4,540

4,540 

8,700 

9,960 

8,700 

6,321

5,220 

5,050 

8,660 

11,200 

10,600

8,300 

6,130 

7,100 

5,940 

4,710 

4,540

Jan.

7 , 500 

9,750 

7,700 

6,320 

5,220

4,880 

4,710 

4,710 

4,370 

4,200

4,040 

3,560 

3,100 

2,810 

2,530

2,340 

2,210 

2,150 

2,090 

1,980

1,920 

1,810 

1,810 

1,810 

1,7OO

1,650 

1,600 

1,500 

1,450 

1,400 

1,350

Feb.

1,300 

1,210 

1,190 

1,170 

1,110

1,060 

1,070 

1,300 

1,450 

1,400

1,300 

1,210 

1,170 

1,400 

2,400

2,743 

5,440 

8,500 

6,700 

4,880

4,040 

4,710 

4,710 

4,040 

3,560

3,720 

3,800 

3,400 

2,950

Mrm+H. Second 

Month foot-days

Octc 

Nove 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

We

mber . mber

lendar y 

ary

. . . . 1

ear 1947

1

V,

1

ember ..................... f

U,647 

31,500 

17,360

12,307

34,170 

i2,930 

=2,510 

7,920 

U,810 

8,770 

=5,980 

51,248 

0,186

ter year 1947-48 ... ...... ijUS.OSl

Mar.

2,670 

2,400 

2,150 

1,980 

1,S10

1,700 

.1,650 

1,600 

1,500 

1,450

1,400 

1,350 

1,300 

1,260 

1,210

1,210 

1,170 

1,210 

1,260 

1,260

2,150 

5,400 

4,710 

3,640 

2,950

2,460

2,150 

1,920 

1,920 

1,860 

1,810

Maximum

15,700 

7,500 

11,200

26,100

9,750 

8,500 

5,400 

5,760 

7,100 

6,130 

2,950 

1,300 

3,640

15,700

Apr

1,700

1,700 

1,650 

1,600 

1,600

1,600 

1,650 

1,600 

1,600 

1,700

1,650 

1,600 

1,600 

1,650 

1,760

2,270 

2,810 

2,950 

2,810 

2,670

2,810 

4,120 

5,580 

5,760 

5,220

4,370 

3,720 

3,100 

2,670 

2,400

May

2,150 

1,980 

2,270 

3,180 

3,560

5,400 

5,580 

4,710 

3,960 

3,320

2,950 

2,880 

4,560 

7,100 

6,700

5,760

5,400 

4,880 

4,280 

3,960

4,200 

4,370 

4,280 

4,540 

5,220

5,760 

6,130 

6,320 

6,130 

5,400 

4,880

Minimum

497 

1,600 

1,400

468

1,350 

1,060 

1,170 

1,600 

1,980 

2,670 

1,300 

796 

940

497

Peak discharge (base, 12,000 sec. -ft.).- Oct. 19 (6 a.m.) 17,

June

4,710 

4,710 

4,880 

4,710 

4,710

4,880 

5,400 

5,940 

6,130 

5,760

5,050 

4,710 

4,280 

4,040 

3,720

3,560 

3,320 

3,100 

3,020 

3,100

3,180 

3,020 

2,880 

2,810 

2,810

2,740 

2,670 

2,810 

3,020 

3,100

Mean

4,569 

3,050 

4,754

2,773

3,360 

2,860 

2,016 

2,597 

4,575 

3,959 

1,806 

1,008 

2,006

3,049

July

2,950 

2,600 

2,400 

2,270 

2,150

2,150 

2,150 

2,030 

1,920 

1,860

1,810 

1,700 

1,650 

1,650 

1,650

1,700 

1,760 

1,810 

1,810 

1,810

1,700 

1,650 

1,600 

1,500 

1,350

1,300 

1,500 

1,500 

1,400 

1,350 

1,300

Per 

square 

mile

17.3 

11.6 

18.0

10.5

12.7 

10.8 

7.64 

9.84 

17.3 

15.0 

6.84 

3.82 

7.60

11.5

100 sec. -ft. ; Dec.

Aug.

1,300 

1,300 

1,260 

1,200 

1,140

1,110 

1,070 

994 

940 

908

892 

868 

836 

852 

844

836 

812 

820 

796 

820

1,020 

1,110 

1,060 

1,040 

1,030

1,020 

1,060 

1,060 

1,030 

1,080 

1,140

Sept.

1,120 

1,150 

1,650 

1,760 

1,600

1,450 

1,300 

1,210 

1,^40 

1,090

1,030 

976 

940 

940 

2,340

3,640 

3,100 

2,530 

2,090 

1,860

2,090 

3,020 

3,640 

3,320 

2,880

2,460 

2,460 

2,600 

2,530 

2,270

Runoff

Inches

IS. 95 

lc.89 

2C.76

142.60

14.67 

11.68 

8.81 

1C. 98 

19.98 

16.73 

7.89 

4.40 

8.48

157.22

Acre-feet

281,000 

181,500 

292,300

2,008,000

206,600 

164,500 

124,000 

154,600 

281,300 

235 , 600 

111,000 

61,980 

119,400

2,214,000

23 (12 p.m. ) 12,40(

Note.- Shifting-control method used July 25 to Sept. 3.
QUEETS RIVER BASIN 41

Queets River near Clearwater, Wash.

Location.- Water-stage recorder, lat. 47°32 I , long. 124°19' , in SW£ see. 36, T. 24 N. , R. 

13 w., on Quinault Indian Reservation, 2 miles downstream from Clearwater River and 

4 miles southwest of Clearwater. Datum of gage is 14.5 feet above mean sea level 

(river-profile survey).

Drainage area.- 454 square miles.

Kecords available.- September 1930 to September 1948.

Average discharge.- 18 years, 4,118 second-feet.

Extremes.- Maximum discharge during year, 58,300 second-feet Oct. 18 or 19 (gage height, 

20.42 feet, from recorded range in stage), from rating curve extended above 31,000 

second-feet; minimum, 542 second-feet Oct. 1 (gage height, 5.74 feet, from recorded 

range in stage).

1930-48: Maximum discharge, 100,000 second-feet Jan. 22, 1935 (gage height, 27.0 

feet, present datum, from floodmarks), from rating curve extended above 31,000 secondfeet; minimum, 368 second-feet Sept. 9, 1944; minimum gage height, 3.58 feet, present 

datum, Oct. 11, 1932.

Remarks.- Records good except those for period of shifting control, which ar; fair, and 

those for periods of no gage-height record, which are poor. No diversion or regulation.

Rating tables, water year 1947-48, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

5.7

8.3

550

4,460

850

1,170

1,540

1,950

2,740

Oct. 3 to Sept. 30

9.0

10.0

11.0

3,670 

4,730 

5,92O 

8,650 

11,800

13.0 

13.0 

14.0 

15-ro 

16.0

15,400

25,400 

27 , 900 

32,8OO

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

542 

4,500 

10,000 

11,000 

8,200

5,400 

3,500 

2,900 

6,600 

7,200

6,800 

5,200 

3,800 

2,900 

5,100

9,200 

15,000 

23,000 

32,000 

22,000

14,000 

10,000 

6,100 

4,700 

f 3 , 700

4,000 

3,700 

4,250 

4,650 

4,900 

10,000

Nov.

15,000 

12,000 

9,500 

7,500 

6,000

4,100 

4,450 

9,000 

7,300 

6,050

5,300 

4,600 

4,100 

3,650 

3,300

3,100 

4,350 

5,550 

4,900 

4,050

3,500 

3,050 

2,700 

2,450 

2,200

2,650 

2,600 

2,300 

2,200 

2,100

Dec.

2,050 

2,000 

2,300 

2,600 

2,400

2,200 

2,100 

2,000 

1,950 

1,950

1,950 

1,950 

4,600 

10,500 

9,200

9,200 

17,500 

20,000 

17,500 

12,500

8,500 

11,000 

17 , 200 

23,000 

21,000

17,000 

8,200 

9,000 

8,600 

7,700 

6,600

Jan.

14,500 

19,000 

15,000 

12,000 

10,000

8,900 

7,500 

6,800 

6,050 

5,700

5,500 

5,200 

4,850 

4,450 

4,100

3,750 

3,500 

3,200 

2,950 

2,750

2,600 

2,400 

f2,330 

f2,250 

2,150

2,050 

2,000 

1,900 

1,800 

1,750 

1,700

Month

Ootc 

Novs 

Dece

Ca

Jam 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augv 

Sept

Ws

mber ......................

lendar year 1947 

ary . . .

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

ter year 1947-48 ..........

Feb.

1,600 

1,550 

1,500 

1,500 

1,450

1,400 

1,500 

1,900 

2,500 

2,350

2,000 

1,750 

2,050 

2,550 

3,500

7,000 

11,000 

17,000 

13,000 

10,000

7,500 

9,400 

9,400 

7,900 

6,050

6,700 

7,400 

6,500 

6,000

Secondfoot-days

254,842 

149,550 

264,250

1,599,483

168,630 

153,950 

120,520 

136,170 

194,160 

78,970 

44,450 

43,096 

89,110

1,697,698

Mar.

4,950 

4,100 

3,550 

3,050 

2,700

2,400 

2,200 

2,050 

1,950 

1,900

1,880 

1,950 

2,100 

1,950 

1,810

1,740 

1,670 

2,250 

2,330 

2,410

20,600 

15,800 

7,230 

5,190 

4,180

3,570 

3,180 

3,090 

3,090 

2,910 

2,740

Maximum

32,000 

15,000 

23,000

38 , 500

19,OOC 

17,000 

20,600 

12,20C 

17,300 

3,870 

2,100 

3,090 

7,160

32,000

Apr

2,740 

2,660 

2,570 

2,660 

2,910

3,570 

3,280 

2,910 

3,380 

3,980

3,280 

3,000 

3,570 

3,280 

3,770

4,840 

4,960 

4,180 

3,570 

3,380

3,980 

9,560 

12,200 

10,800 

8,950

6,30o 

4,960 

4,080 

3,670 

3,180

May

3,090 

2,820 

6,720 

7,510 

8,500

12,800 

8,360 

6,040 

4,84O 

4,080

3,670 

4,080 

17,300 

15,800 

9,560

8,650 

7,510 

5,920 

4,960 

4,620

4,730 

4,400 

3,870 

4,290 

4,620

4,510 

4,620 

4,960 

4,290 

3,570 

3,470

Minimum

542 

2,100 

1,950

542

1,700 

1,400 

1,670 

2,570 

2,820 

1,880 

1,070 

860 

1,150

542

June

3,380 

3,380 

3,380 

3,180 

3,280

3,380 

3,770 

3,870 

3,670 

3,280

2,820 

2,740 

2,570 

2,490 

2,410

2,250 

2,1BO 

2,020 

2,020 

2,250

2,410 

2,180 

1,950 

1,950 

1,950

1,880 

1,880 

2,100 

2,250 

2,100

Mean

8,221 

4,985 

8,524

4,382

5,440 

5,309 

3,888 

4,539 

6,263 

2,632 

1,434 

1,390 

2,970

4,639

July

1,810 

1,630 

1,580 

1,620 

1,510

1,570 

1,620 

1,530 

1,390 

1,450

1,400 

1,310 

1,290 

1,330 

1,370

1,420 

1,440 

1,440 

1,460 

1,370

1,310 

1,290 

1,310 

1,160 

1,070

1,270 

2,100 

1,530 

1,290 

1,290 

1,290

Per 

square 

mile

18.1 

11.0 

18.8

9.65

12.0 

11.7 

8.56 

10.0 

13.8 

5.80 

3.16 

3.06 

6.54

10.2

Aug

1,290 

1,270 

1,220 

1,090 

1,050

1,180 

994 

950 

950 

930

92O 

890 

860 

950 

860

972 

910 

1,060 

95O 

1,270

3,090 

1,740 

1,300 

1,950 

1,880

1,740 

2,410 

2,020 

1,740 

2,410 

2,250

Sept.

1,810 

3,270 

4,290 

2,740 

2,180

1,810 

1,670 

1,510 

1,410 

1,330

1,270 

1,210 

1,150 

1,390 

7,160

5,300 

3,090 

2,410 

2,020 

1,950

4,020 

5,920 

5,800 

4,080 

3,180

2,820 

3,470 

4,730 

3,380 

2,740

Runoff

Inches

20.88 

12.25 

21.65

131.04

13.81 

12.61 

9.87 

11.15 

15.90 

6.47 

3.64 

3.53 

7.30

139.06

Peak discharge (base. 38,000 sec. -ft.).- Oct. 18 or 19 (time unknown) 58,300 sec. -ft.;

Ac re- feet

505,500 

296,600 

524,100

3,172,000

334,500 

305,400 

239,000 

270,100 

385,100 

156,600 

88,170 

85,480 

176,700

3,367,000

Mar. 21

p.m.) 39,1C

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Oct. 1-24, Oct. 26 to Jan. 22, Jan. 25 to Mar. 10; discharge coraputed on basis of recorded range in stage and records for Quinault River at Quinault Lake. Shifting-control method used Mar. 11-20,
42 QUEETS RIVER BASIN

Clearwater River near Clearwater, Wash.

Location.- Water-stage recorder, lat. 47°35', long. 124°18', in lot 4, sec. 18, T. 24 N., 

RT~nr~W., Ig- miles north of Clearwater and 3 miles upstream from mouth. Datum of gage 

is 60.0 feet above mean sea level, unadjusted.

Drainage area.- 140 square miles.

Records available.- July 1937 tu'September 1948. October 1931 to September 1932 at site 

a quarter of a mile upstream.

Average discharge.- 12 years (1931-32, 1937-48), 1,196 second-feet.

Extremes.- Maximum discharge during year, S4.600 second-feet Jan. 1 (gage height, 14.38 

feet) , from rating curve extended above 6,800 second-feet by velocity-are? study; 

minimum, 103 second-feet Aug. 11-13 (gage height, 5.33 feet).

1931-32, 1937-48: Maximum discharge, 29,200 second-feet Oct. 28, 1937 (gage height, 

14.90 feet), from rating curve extended above 6,800 second-feet by velocity-area study; 

discharge may have been higher Feb. 7, 1945, when water-stage recorder was not operatiiig; 

minimum, 58 second-feet Aug. 28, 1947 (gage height, 5.27 feet), apparently result of 

flash dam operation.

Discharge known to have been greater Jan. 21 or 22, 1935 (stage and discharge not 

determined).

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

Wo diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6

7 

8 

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 

7,380 

4,340

3,rZ10

1,670

1,100 

840 

1,140 

1,450

1,140

910 

760 

920 

800 

3,760

2,490 

3,660 

7,130 

7,360 

-,980

1,890 

1,410 

1,610 

1,200 

1,310

1,360 

1,100 

1,820 

1,550 

2,040 

£,650

Nov.

2,410

1,780 

1,410 

1,240 

1,240

2,110 

3,400 

3,400 

2, '180 

1,960

1,760 

1,440 

1,340 

1,210 

1,150

970 

1,460 

1,510 

1,220 

1,020

850

730 

644 

581 

640

750 

560 

540 

510 

490

Dec.

520 

480 

660 

520

480

450 

440 

430 

425

430

450 

500 

3,500 

2,500 

2,200

4,000 

6,000 

7,800 

3,000

2,300

2,100 

2,040 

9,350 

4,540 

2,650

1,890 

3,350 

3,060 

2,180 

1,680 

3,220

Jan.

12,700 

7,640 

4,240 

3,860 

2,680

2,910 

2 , 450 

2,910 

2,520 

2, '7 50

2,380 

1,840 

1,490 

1,230 

1,060

954 

870

810 

740 

683

638 

638 

656 

584 

530

498 

466 

422 

482 

539 

443

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber .......................

rnber .....................

lendar year 1947 

ary

st ........................

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

ter year 1947-48 ..........

Feb.

408 

380 

380 

374 

344

320 

470 

2,510 

1,480 

1,120

870 

710 

674 

4,360

4,700

3,130 

9,460 

6,840 

2,830

2,090

2,160 

4,240 

2,750 

2,090 

1,880

2,450 

2,230 

1,740 

1,430

Secondfoot-days

71,170 

40,505 

73,145

422,915

62,613 

64,420 

43,392 

43,190 

54,498 

9,207 

4,876 

8,183 

25,145

500,344

Mar.

1,610 

1,370 

1,400 

1,030 

921

890 

800 

720 

647 

593

557

602 

629 

557 

514

482 

450 

710 

710 

790

9,910 

5,800 

2,650 

1,830 

1,430

1,180 

1,010 

970 

950 

880 

800

Maximum

7,380 

3,400 

9,350

11,000

12,700 

9,460 

9,910 

4,070 

5,220 

508 

310 

790 

2,040

12,700

Apr.

800 

770 

770 

800 

930

1,110 

1,080 

960 

1,110 

1,29C

1,080 

990 

1.210 

1,090 

1,190

1,410 

1,470 

1,230 

1,080 

970

1,130 

2,730 

4,070 

3,720 

3,050

2,120 

1,620 

1,230 

1,110 

980

May

960 

860 

2, 180 

2,570 

3,020

4,070 

2,650 

1,830 

1,440

1,200

1,040 

1,160 

5,220 

5,210 

3,210

2,730 

2,200 

1,720 

1,420 

1,210

1,090 

980 

870 

800 

780

704 

685 

790 

723 

613 

563

Minimum

190 

490 

425

135

422 

320 

450 

770 

563 

182 

119 

103 

277

103

June

508 

485 

448 

433 

405

377 

364 

358 

334 

322

310 

328 

304 

299 

304

272 

255 

250 

245 

272

316 

294 

255 

240 

230

214 

204 

204 

195 

182

Mean

2,296 

1,350 

2,360

1,159

2,020 

2,221 

1,400 

1,440 

1,758 

307 

157 

264 

838

1,367

July

178

169 

164 

160

160

178 

200 

200 

164 

169

164 

160 

153 

146 

142

136 

132 

125 

128 

125

125 

128 

139 

125 

119

160 

310 

204 

156 

132 

125

Per 

square 

mile

16.4 

9.64 

16.9

8.28

14.4 

15.9 

10.0 

10.3 

12.6 

2.19 

1.12 

1.89 

5.99

9.76

Aug.

122 

119 

112 

112 

119

146 

125 

115 

109 

109

103 

103 

103 

112 

112

164 

132 

164 

142 

235

790 

377 

260 

531 

455

440 

595 

531 

455 

676 

515

Sept.

462 

1,110 

1,290 

880 

622

547 

462 

405 

364 

340

310 

294 

277 

493 

1,350

1,390 

810 

640 

531 

508

1,170 

2,040 

1,750 

1,270 

970

840 

950 

1,310 

970 

790

Runoff

Inches

18.91 

10.76 

19.43

112.33

16.63 

17.11 

11.53 

11.47 

14.48 

2.45 

1.30 

2.17 

6.68

132.92

Acre-feat

141,200 

80,340 

145,100

838,900

124,200 

127,800 

86,070 

85,670 

108,100 

18,260 

9,670 

16,230 

49,870

992.500

Peak discharge (base, 16,000 sec. -ft.).- Oct. 2 (7:20 a.m. 17,500 sec. -ft.; Oct. 18 (10 p.m.)

18,900sec

Note.- No gage-height record Nov. 25 to Dec. 21; discharge computed'on basis of 1 discharge measurement, recorded range in stage, and records for Hoh Hiver near Spruce.
HOH RIVER BASIN

Hoh River near Spruce, Wash.

Location.- Water-stage recorder, lat. 47°48 I 20", long. 124°06'20", In sec..34, T. 27 N., 

IT! 11 W., 1 mile downstream from Maple Creek, 2-j- miles downstream from Spruce, and 

5 miles downstream from South Fork.

Drainage area.- 193 square miles.

Records available.- August 1926 to September 1948.

Average discharge.- 22 years, 1,925 second-feet.

Extremes.- Maximum discharge during year, 19,400 second-feet Oct. 18 (gage height, 14.39 

feet), from rating curve extended above 10,000 second-feet; minimum, 711 second-feet 

Feb. 6, 7.

1926-48: Maximum discharge, 40,000 second-feet Nov. 5, 1934 (gage height, 21.2 

feet, from high-water mark in gage structure), from rating curve extended above 10,000 

second-feet on basis of velocity-area studies (gage observer noted water higher on this 

day than at any other time during his 43 years of residence on the bank of the stream); 

minimum, 247 second-feet Nov. 14, 15, 1929; minimum gage height, 0.68 fcot Oct. 18, 19, 

1946.

Remarks.- Records good. No diversion or artificial regulation. Large diurnal fluctuation 

during summer months caused by melting of glaciers at source.

Rating table, water year 1947-48 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 1-2, Feb. 37 to Mar. 22)

1.8 

2.1 

2.5 

3.0 

3.5

692

812

1,000

1,260

1,550

4.0

4.5 

5.0 

6.0 

7.0

1,890

2,260

2,680

3,720

5,040

8.0

9.0

10.0

6,550

8,190

9,950

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

782 

5,150 

4,620 

3,160 

1,750

1,260 

1,050 

1,550 

2,120 

1,460

1 , 200 

1,080 

1,370 

1,200 

5,070

3,490 

4,960 

7,560 

9,250 

4,170

2,970 

2,420 

2,340 

2,100 

2,450

2,620 

2,030 

2,970 

2,420 

2,870 

5,070

Nov.

4,060 

2,870 

2,420 

2,100

1,960

2,200 

3,770 

3,930 

2,770 

2,770

2,590 

2,260 

2,180 

1,960 

1,960

1,820 

2,490 

2,340 

2,030 

1,750

1,610 

T,460 

1,370 

1,290 

1,430

1,890 

1,490 

1,320 

1,200 

1,180

Dec.

1,230 

1,210 

1,720 

1,340

1 , 180

1,100 

1,050 

1,000 

975 

1,000

1,020 

1,100 

5,180 

3,240 

2,680

5,150 

6,940 

8,340 

4,640 

3,270

3,270 

3,260 

9,930 

6,170 

4,220

3,170 

5,170 

4,350 

3,170 

2,680 

4,140

Jan.

8,340 

5,940 

4,350 

3,600 

3,070

3,490 

3,490 

3,490 

3,270 

3,270

2,770 

2,340 

2,030

1,890 

1,750

1,720 

1,680 

1,580 

1,520 

1,460

1,370 

1,370 

1,430 

1,370 

1,260

1,150 

1,100 

1 , 050 

1,050 

1,000 

926

Feb.

902 

856 

812 

791 

750

711 

899 

1,370 

1,100 

975

879 

812 

812 

1,790 

2,900

2,260 

7,680 

6,720 

3,490 

2,590

2,590 

4,760 

3,270 

2,590 

2,420

2,970 

2,590 

2,180 

1,960

foTt^ays

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lender year 1947 

ary

 7

1 ............ . . . . .

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

32,512 

64,470 

32,895

22,279

74,126 

54,429 

13,981 

15,973 

38,470 

79,920 

19,890 

12,070 

19,480

ter year 1947-48 ...... ... 798,216

Peak discharge (base, 10,000 sec. -ft.).- 0

11,300 sec. -ft.; Dec. 18 (6 a.m.) 10,300 sec 

11,100 sec. -ft.

Mar.

1,890 

1,680 

1,520 

1,400 

1,320

1,290

1 , 200

i.iro

1,100 

1,020

1,000 

1,000 

975 

926 

902

856 

834 

926 

926

856

3,960 

3,910 

2,260 

1,750 

1,550

1,370 

1,260 

1,290 

1,370 

1,290 

1,200

Maximum

9,250 

4,060 

9,930

13,000

8,340 

7,680 

3,960 

3,380 

4,760 

4,220 

2,180 

2,030 

3,500

9,930

Apr.

1,150 

1,120 

1,080 

1,000 

950

926 

902 

879 

926 

950

902 

902 

950 

926 

1,260

1,960 

1,820 

1,680 

1,520 

1,490

1,800 

3,070 

3,380 

3,070 

2,770

2,260 

1,890 

1,640

1,460 

1,340

May

1 

1 

2 

2 

2

4 

2

2 

2

1

1 

1 

4 

4 

3

3 

3 

2 

2 

2

2 

2 

2 

3

3

3 

4 

4 

3 

2 

2

Minimum

782 

1,180 

975

572

926 

711 

834 

879 

1,200 

2,030 

1,200 

950 

1,050

711

,290 

,200

,160 

,260 

,540

,090 

,970 

,340 

,030 

,750

,640 

,940 

,760 

,220 

,070

,170 

,070 

,590 

,340 

,420

,770 

,770 

,680 

,070 

,720

,840 

,090 

,350 

,490 

,970 

,87T

June

2,970 

3,070 

3,070 

2,970 

3,070

3,270 

3,960 

4,220 

3,960 

3,380

2,870 

2,590 

2,590 

2,420 

2,340

2,260 

2,100 

2,030 

2,100 

2,340

2,420 

2,180 

2,030 

2,030 

2,030

2,030

2,100 

2,420 

2,680 

2,420

Mean

2,984 

2,149 

3,319

1,979

2,391 

2,222 

1,419 

1,532 

2,854 

2,664 

1,609 

1,357 

1,649

2,181

July

1,890 

1,680 

1,640 

1,640 

1,550

1,610 

1,680 

1,520 

1,400 

1,640

1,490 

1,400 

1,400 

1,430

1,520

1,680 

1,820 

1,820 

1,960 

1,820

1,680

1,610 

1,550 

1,290 

1,200

1,510 

2,180 

1,520 

1,490 

1,550 

1,720

Per 

square 

mile

15.5

11.1 

17.2

10.3

12.4 

11.5 

7.35 

7.94 

14.8 

13.8 

8.34 

7.03 

8.54

11.3

Aug.

1,820 

1,820 

1,640 

1,430 

1,200

1,200 

1,050 

1,100 

1,150 

1,180

1,200 

1,100 

1,150 

1,100 

1,000

950 

1,150 

1,340

1,120 

1,310

2,030 

1,460 

1,200 

1,550 

1,520

1,520 

1,680 

1,430 

1,430 

1,720 

1,520

Sept.

1,260 

2,280 

2,500 

1,720 

1,370

1,200 

1,150 

1,150 

1,150 

1,150

1,120 

1,050 

1,080 

1,600 

3,500

2,350 

1,610 

1,320 

1,150 

1,120

2,300 

2,970 

2,340 

1,750 

1,460

1,290 

1,490 

2,180 

1,550 

1,320

Runoff

Inches

17.83 

12.42 

19.83

139.20

14.28 

12.42 

8.47 

8.86 

J.7.05 

15.40 

9.61 

8.11 

9.53

153.81

ct. 18 (11 p.m.) 19,400 sec. -ft.; Dec. 16 (11 

.-ft.; Dec. 23 (l2 p.m.) 12,300 sec. -ft.; Jan

Acre-feet

183,500 

127,900 

204,100

1,433,000

147,'JOO 

127,800 

87,240 

91,190 

175,500 

158,500 

98,960 

83,440 

98,140

1,583,000

p.m.) 

1 (3 p.m.)
QUILLAYUTE RIVER BASIN

Soleduck River near Fairholm, Wash.

Location.- Water-stage recorder, lat. 48°02'30", long. 123°57'30", in lot 4, sec. 35, T. 

30 N., R. 10 W., 300 feet downstream from'South Fork, 2.5 miles southwest of Fairholm, 

and 17 miles east of Beaver.

Drainage area.- 84 square miles.

Records available.- October 1917 to September 1921, October 1933 to September 1948.

Average discharge.- 19 years, 597 second-feet.

Extremes.- Maximum discharge during year, 8,870 second-feet Oct. 18 (gage height, 8.89 

feet), from rating curve extended above 5,300 second-feet; minimum, 64 second-feet 

Oet. 1 (gage height, 1.48 .feet).

1917-21, 1933-48: Maximum discharge, 24,300 second-feet Dec. 21, 1933 (gage height, 

14.9 feet), from rating curve extended above 5,300 second-feet; minimum, 51 secondfeet Sept. 11, 12, 1944 (gage height, 1.07 feet).

Remarks.- Records good. No diversion or regulation. 

Revisions (water years).- W 962: Drainage area.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In seeond-feet)

Oet. 1-18 Oct. 19 to Sept. 30

1.5 66 2.8 431 5.O 2,O4O 1.9 160 3.1 601 5.0 

1.7 98 3.1 570 5.5 2,61O 2.2 247 3.5 830 5.5 

T.9 141 3.5 790 6.0 3,260 2.5 344 4.0 1,160 6.0 

2.2 222 4.0 1,120 2.8 460 4.5 1,560 6.6 

2.5 319 4.5 1,550

Discharge, in second-feet, water year October 1947 to September 1943

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

925 

724 

570 

312

231 

196 

234 

322 

244

202 

180 

219

213 

1,130

948 

1.8OO 

3,240 

3,400 

1,200

800 

638 

638 

542 

537

576 

482 

752 

654 

890 

1,840

Nov.

1,390 

955 

800 

654 

586

638 

1,080 

1,230 

890 

860

770 

665 

633 

576 

556

523 

892 

800 

660 

586

518 

473 

435 

411 

427

537 

427 

388 

362 

358

Dec.

358 

373 

504 

392 

362

344 

337 

324 

310 

307

324 

334 

1,740 

1,060 

890

,840 

,400 

,110 

,560 

,090

,090 

,110 

,110 

,240 

,390

,090 

,560 

,390 

1,060 

860 

1,450

Jan.

3,430 

2,220 

1,430 

1,120 

955

1,120 

1,200 

1,160 

1,090 

1,060

860 

722 

638 

601 

556

542 

551 

561 

561 

556

551 

571 

628 

601 

546

495 

460 

435 

423 

392 

369

Feb.

355 

337 

327 

317 

294

284 

300 

411 

348 

310

288 

275 

275 

617 

995

669 

3,150 

2,650 

1,220 

860

630 

1,390 

1,020 

830 

770

955 

830 

693 

606

Month SecondMontn foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ober ......................

lendar year 194Y 

ary .

2

1 ......... t...... ........

st ............. ..........

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

24,707 

20,080 

35,309

17,085

26,404 

22,206 

14,412 

15,405 

30,601 

25,723 

11,296 

6,510 

8,866

ter year 1947-48 .......... 241,519

Mar.

556 

500 

464 

423 

407

400 

380 

366 

344 

330

327 

337 

324 

310 

300

288 

278 

288 

278 

266

1,250 

1,390 

800 

601 

509

448 

427 

440 

486 

460 

435

Maximum

3,400 

1,390 

4,110

5,940

3,430 

3,150 

1,390 

1,090 

1,700 

1,370 

495 

327 

688

4,110

Apr.

419 

392 

369 

348 

330

317 

304 

291 

307 

304

291 

284 

288 

284 

410

654 

617 

612 

561

576

688 

1,020 

1,090 

1,060 

860

752 

581 

513 

460 

423

May

411 

392 

628 

699 

797

1,370 

955 

752 

638 

571

537 

596 

1,230 

1,200 

955

1,020 

1,020 

860 

770 

860

,060 

,060 

,060 

,370 

,520

,320 

,560 

,700 

,310 

,090 

,090

Minimum

68 

358 

307

65

369 

275 

266 

284 

392 

591 

250 

160 

144

68

June

1,090 

1,090 

1,120 

,060 

,090

,160 

,350 

,350 

,370 

1,090

922 

860 

860 

800 

728

699 

676 

665 

688 

746

722 

633 

612 

606 

601

596 

612 

665 

671 

591

Mean

797 

669 

1,139

595

852 

766 

465 

514 

987 

857 

364 

210 

296

660

July

495 

456 

448 

444 

427

440 

440 

400 

373 

400

380 

358 

344 

358 

362

373 

380 

388 

373 

348

324 

310 

300 

269 

250

314 

423 

310 

278 

269 

262

Per 

square 

mile

9.49 

7.96 

13.6

7.08

10.1 

9.12 

5.54 

6.12 

11.8 

10.2 

4.33 

2.50 

3.52

7.86

2,040 

2,610 

3,260 

4,150

Aug.

253 

247 

235 

217 

220

223 

197 

188 

185 

182

174 

168 

174 

168 

171

160 

174 

208 

168 

187

327 

226 

191 

278 

241

223 

266 

223 

205 

211 

220

Sept.

191 

302 

422 

300 

247

220 

200 

188 

177 

168

157 

150 

144 

190 

522

420 

281 

208 

214 

202

376 

688 

542 

407 

341

300 

297 

407 

324 

281

Runoff

Inches

10.94 

8.89 

15.63

96.12

11.69 

9.83 

6.38 

6.82 

13.55 

11.39 

5.00 

2.88 

3.93

1C6.93

Ac re- feet

49,010 

39,830 

70,030

430,600

52,370 

44,040 

28,590 

30,560 

60,700 

51,020 

22,410 

12,910 

17,590

479,100

Peak discharge (base, 6,000 see. -ft.).- Oet. 18 (10:30 p.m.) 8,870 see. -ft.
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 NE^NWir sec. 33, T. 30 

N. , K. 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. Datum of 

gage is 200. 00 feet above mean sea level, datum of 1929.

Drainage area.- 262 square miles.

Kecords available.- October 1897 to December 1901, October 1918 to September 1948.

Average aiScnargeT- 34 years, 1,418 second-feet (adjusted for storage since April 1927).

Extremes . - Maximum discharge during year, 18,000 second-feet Oct. 18 (gage height, 19.31

 reet; ; ; minimum, 28 second-feet Aug. 29 (gage height, 7.97 feet); minimum daily, 168 

second-feet Sept. 6.

1897-1901, 1918-48: Maximum discharge, 26,700 second-feet Dec. 21, 1933 (gage 

height, 10.5 feet, site and datum then in use, from f loodmarks ) ,. computed on basis of 

spillway and turbine records at Lake Mills; minimum daily, 10 second-feet Oct. 3, 1938.

Remarks.'- Records good. Flow regulated by Lake Mills on Elwha River, lat. 48°00'05", long. 

ia3"36'00" , 4 miles north of Elwha, which was completed in 1927 for development of 

power. Usable capacity, 38,650 acre-feet at elevation 610 feet. Change in contents 

determined from 12 p.m. elevations based on twice-daily staff -gage readings. Plow diverted through Gllnes Canyon powerhouse and returned to river above gage.

Cooperation.- Lake Mills gage heights furnished by Crown Zellerback Corp.

Rating table, water year 1947-48 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1-18, 

Dec. 17-23, Feb. 18 to May 15)

8.5 148 9.5 715 12.0 3,400 

8.7 228 10.0 1,120 13.0 4,770 

8.9 325 10.5 1,610 14.0 6,31O 

9.2 502 11.0 2,160 15. 0 8,040

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

361 

1,340 

1,260 

984 

868

696 

608 

517 

672 

758

640 

562 

748 

652 

572

649 

3,250 

4,510 

6,960 

2,610

1,890 

1,650 

1,550 

1,450 

1,480

1,620 

1,500 

1,690 

1,520 

1,580 

3,180

Nov.

2,770 

2,200 

1,750 

1,620 

1,560

1,450 

1,940 

2,300 

1,650 

1,660

1,520 

1,400 

1,440 

1,470 

1,370

870 

1,380 

1,440 

1,430 

1,420

1,240 

994 

672 

1,060 

1,090

1,320 

1,270 

1,360 

1,260 

643

Month

Ooto 

Hove 

Dece

Cal

Janu 

Febr 

Marc 

Apri

UAV

June 

July 

Augu 

Sept

Wat

endar year 1947

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

er year 1947-48

Dec.

1,240 

1,040 

1,180 

1,100 

990

963 

592 

1,090 

976 

974

1,060 

1,040 

1,090 

980 

1,450

2,320 

3,450 

3,690 

2,37-0 

2,010

1,880 

1,900 

5,680 

4,420 

3,530

2,650 

3,430 

3,190 

2,310 

2,280 

2,680

Jan.

4,430 

3,690 

3,360 

2,060 

2,000

2,530 

2,280 

2,270 

2,170 

2,450

1,490 

1,540 

1,410 

1,450 

1,420

1,340 

1,320 

1,110 

1,360 

1,280

1,280 

1,300 

1,310 

1,380 

1,190

1,320 

1,260 

1,120 

1,120 

1,120 

1,150

Feb.

700 

1,030 

845 

899 

960

895 

856 

713 

1,050 

981

674 

862 

892 

990 

1,020

1,280 

2,860 

2,390 

1,920 

1,480

1,390 

1,820 

1,490 

1,400 

1,300

1,350 

1,340 

1,280

966

Mar.

1,250 

1,150 

1,160 

1,030

868

814 

765 

872 

866 

824

764 

780 

780 

574 

670

604 

574 

650 

652 

538

1,420 

1,650 

1,260 

1,080 

1,080

1,010 

1,020 

893 

910 

718 

650

Observed

Discharge in 

second-feet

Maximum

6,960 

2,770 

5,680

11,200

4,430 

2,860 

1,650 

1,580 

5,990 

5,830 

2,490 

1,430 

1,120

6,960

Minimum

361 

643 

592

98

1,110 

674 

538 

494 

999 

2,400 

752 

517 

168

168

Mean

1,527 

1,452 

2,050

1,421

1,758 

1,229 

899 

903 

2,557 

3,512 

1,586 

968 

760

1,602

Runoff 

in 

acre-feet

93,870 

86,380 

126,100

1,029,000

108,100 

70,680 

55,290 

53,760 

157,200 

209,000 

97,52O 

59,520 

45,710

1,163,000

Apr.

726 

711 

720 

586 

748

699 

792 

678 

595 

552

496 

662 

566 

494 

594

760 

778 

930 

917 

1,030

1,190 

1,430 

1,580 

1,530 

1,300

1,270 

1,180 

1,150 

1,170 

1,270

May

1,180 

1,140 

1,170 

999 

1,030

1,140 

1,540 

1,560 

1,340 

1,380

1,320 

1,490 

2,140 

2,100 

1,900

1,850 

2,240 

2,170 

2,040 

2,060

2,830 

3,170 

3,270 

3,790 

4,740

5,260 

5,600 

5,990 

4,960 

3,930 

3,930

contents in 

Lake Mills 

(acre-feet)

+1,150 

-1,400 

+1,230

+210

-690 

+990 

-1,460 

-340 

+1,450 

+80 

+350 

-1,540 

+590

+420

June

3,970 

4,110 

4,250 

4,340 

4,100

4,310 

5,100 

5,830 

5,370 

4,740

4,110 

3,600 

3,490 

3,520 

3,080

2,840 

2,830 

2,620 

2,720 

3,000

2,930 

2,780 

2,590 

2,400 

2,560

2,570 

2,630 

2,900 

3,030 

3,030

July Aug .

2,490 

2,100 

1,970 

1,820 

2,060

1,820 

1,760 

1,710 

1,570 

1,650

752 

1,600 

1,560 

1,580 

1,610

1,720 

1,750 

886 

1,850 

1,740

1,690 

1,630 

1,430 

1,280 

1,110

1,330 

1,590 

1,280 

1,260 

1,280 

1,290

Adjusted for 

reservoir e

Runoff 

in 

acre-fee

1,310 

1,430

1,310 

1,210 

1,240

1,230 

1,190 

966 

1,140 

904

915 

863 

924 

920

517

853 

888 

902 

920 

886

800 

739 

841 

816 

836

935 

1,060 

1,060 

594 

927 

884

Sept.

908 

858 

900 

874 

804

168 

829 

956 

758 

718

639 

362 

482 

525 

874

1,070 

859 

770 

622 

662

724 

1,020 

1,120 

964 

760

576 

775 

804 

814 

850

change in 

ontents

Discharge in 

second-feet

* Hear

95,020 1,545 

84,980 1,428 

127,300 2,070

1,029,000 1,422

107,400 1,747 

71,670 1,246 

53,840 876 

53,420 898 

158,600 2,579 

209,100 3,514 

97,870 1,592 

57,980 943 

46,300 778

1,163,000 1,603

Per 

aquare 

mile

5.90 

5.45 

7.90

5.43

6.67 

4.76 

3.34 

3.43 

9.84 

13.4 

6.08 

3.60 

2.97

6.12

Runoff

Inches

6.80 

6.08 

9.11

73.64

7.69 

5.13 

3.85 

3.82 

11.35 

14.96 

7.00 

4.15 

3.31

83.25
46 DQNGENESS RIVER BASIN

Dungeness River near Sequim, Wash.

Location.- Water-stage recorder, lat. 48°00'40", long. 123°07'50", in SW^SE^ sec. 12, T. 

a 9 N., R. 4 W. , three-quarters of a mil-e upstream from Canyon Creek, 4| miles southwest 

of Sequim, and ll| miles upstream from mouth.

Drainage area.- 156 square miles.

Records available.- June 1937 to September 1948. July 1897 to July 1898 at site about 2 

miles downstream; June'1923 to September 1930 at site half a mile downstream.

Average discharge.- 18 years (1923-30, 1937-48), 329 second-feet.

Extremes.- Maximum discharge during year, 2,790 second-feet Oct. 19 (gage height, 5.65 

feet); minimum, 114 second-feet Oct. 1 (gage height, 2.75 feet).

1897-98, 1923-30, 1937-48: Maximum discharge, 5,380 second-feet Dec. 28, 1937 (gage 

height, 6.85 feet), from rating curve extended above 1,500 second-feet; minimum 

observed. 77 second-feet Sept. 10, 1928.

Remarks.- Records good except those for Aug. 20 to Sept. 30, which are fair. No diversion

or regulation.

Discharge, in second feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

118 

292 

252 

222 

173

148 

134 

148 

219 

179

173 

173 

212 

192 

434

380 

418 

804 

1,630 

638

447 

355 

312 

294 

360

441 

340 

326 

285 

269 

465

Nov.

567 

441 

365 

321 

285

269 

298 

330 

285 

285

256 

244 

237 

219 

215

205 

212 

212 

212 

208

186 

179 

179 

179 

208

335 

294 

260 

240 

233

Dec.

230 

219 

226 

212 

198

189 

189 

179 

173 

168

165 

162 

297 

290 

24O

293 

540 

758 

581 

435

365

321 

1,270 

1,130 

804

660 

638 

574 

477 

424 

413

Jan.

514

567 

471 

413 

375

408 

424 

408 

375 

375

335 

294 

281 

273 

256

248 

248 

248 

248 

248

248 

303 

402 

391 

350

312 

290 

273 

260 

248 

237

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

1 .........................

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

ter year 1947-48 ........

Feb.

233 

215 

215 

212 

198

189 

195 

212 

202 

186

179 

179 

176 

202 

281

248 

498 

828 

534 

408

345

340 

312 

285 

281

290 

281 

264 

248

Secondfoot-days

10,833 

7,959 

12,820

134,311

10,323 

8,236 

6,642 

7,959 

23,926 

35,892 

18,114 

9,557 

6,468

158,729

Mar.

244 

226 

212 

208 

202

198 

192

186 

179

170

170 

168 

165 

165 

159

159 

154 

154 

151 

148

282 

508 

335 

273 

244

219 

212 

219 

248 

248 

244

Maximum

1,630 

567 

1,270

2,050

567 

828 

508 

514 

2,200 

1,830 

812 

471 

632

2,200

Apr.

244 

240 

222 

212 

198

186 

179 

173 

173

168

165 

162 

165 

168 

215

355

340 

312 

335 

380

389 

514 

430 

386 

340

298 

273 

256 

248 

233

May

230 

222 

256 

277 

298

547 

547 

441 

391 

365

345

402 

459 

408 

380

471 

560 

521 

508 

560

742 

836 

860 

1,040 

1,370

1,500 

1,700 

2,200 

2,120 

1,183 

1,540

Minimum

118 

179 

162

110

237 

176 

148 

162 

222 

860 

424 

208 

134

118

June

1,430 

1,380 

1,460 

1,450 

1,400

1,490 

1,700 

1,830 

1,760

1,630

1,380 

1,260 

1,230 

1,140 

1,050

1,060 

960 

932 

980 

1,070

1,040 

932 

914 

887 

860

860 

887 

970 

1,000 

950

Mean

349 

265 

414

368

333 

284 

214 

265 

772 

1,196 

584 

308 

216

434

July

812 

720 

698 

720 

705

690 

705 

638 

581 

638

630 

560 

534 

547 

567

616 

630 

638 

630 

602

554 

540 

502 

441 

424

465 

521 

435 

447 

459 

465

Per 

square 

mile

2.24 

1.70 

2.65

2.36

2.13 

1.82 

1.37 

1.70 

4.95 

7.67 

3.74 

1.97 

1.38

2.78

Aug.

471 

453 

447

413 

386

365 

340 

340 

335 

340

340 

330 

355 

335 

273

248 

269 

264 

273 

256

273 

273 

230 

273 

269

264 

252 

219 

208 

248 

215

Sept.

162 

176 

215

170 

151

143 

136 

134 

138 

154

162 

168 

165 

241 

632

370 

269 

219 

186 

182

205 

222 

205 

202 

186

195 

237 

321 

285 

237

Runoff

Inches

2.58

1.90 

3.06

32.02

2.46 

1.96 

1.58 

1.90 

5.70 

8.56 

4.32 

2.28 

1.54

37.84

Acre-feet

21,490 

15,790 

25,430

266,400

20,480 

16,340 

13,170 

15,790 

47,460 

71,190 

35,930 

18,960 

12,830

314,900

Peak discharge (base, 1,000 sec. -ft.).- Oct. 19 (1:30 a.m.) 2,790 sec. -ft.; Dec. 23 (5 p.m.) 1,830
DOSEWALLIPS RIVER BASIN 47

Dosewallips River near Brinnon, Wash.

Location.- Water-stage recorder, lat. 47°43', long. 123°00', in SW^ sec. 24, T. 26 N., R. 

3 W. , half a mile upstream from Corrigenda ranger station, 5? miles nortl-west of 

Brinnon, and 1\ miles upstream from mouth.

Drainage area.- 94 square miles.

Records available.- October 1930 to September 1948.

Average discharge.- 18 years, 446 second-feet.

Extremes.- Maximum discharge,during year, 5,740 second-feet Oct. 18 (gage height, 7.27 

feet); minimum, 115 second-feet Oct. 1 (gage height, 1.94 feet).

1930-48: Maximum discharge, 10,900 second-feet Nov. 5, 1934 (gage height, 9.57 

feet), from rating curve extended above 4,500 second-feet; minimum, 65 second-feet Dec. 

4, 1936 (gage height, 1.71 feet).

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

fair. No diversion or regulation.

Revisions.- W 832; Drainage area.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, in second-feet)

1.8 88 2.7 331 4.5 1,500 

2.0 127 3.0 457 5.0 2,040 

2.2 173 3.5 715 5.5 2,680 

2.4 229 4.0 1,060

Discharge, in second-feet, water year October 1947 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.

115 

443 

370 

263 

173

138 

131 

256 

378 

358

294 

248 

270 

214 

£26

650 

792 

1,720 

2,410 

903

610 

486 

426 

404 

498

525

426 

510 

444 

462 

1,150

Nov.

996 

693 

555 

467 

416

378 

433 

467 

378 

358

327 

305 

301 

277 

270

260 

287 

263 

244 

235

226 

223 

217 

214 

257

395 

324 

284 

263 

267

Dec.

260 

257 

263 

235 

226

212 

212 

203 

195 

192

189 

184 

416 

335 

267

462 

769 

704 

550 

448

471 

481 

1,460 

1,220 

882

710 

820 

733 

590 

505 

525

Jan.

824 

814 

644 

555 

495

515 

530 

510 

467 

452

412 

370 

347 

335 

324

312 

309 

305 

301 

294

294 

305 

358 

354 

327

305 

291 

277 

270 

257 

251 '

Month tSof

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 1947 

ary

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

Feb.

241 

229 

229 

223 

212

203 

206 

212 

200 

192

184 

178 

176 

206 

263

244 

496 

682 

486 

399

370 

412 

374 

335 

327

343 

324 

298 

277

,ond-

-days

16,893 

10,580 

14,976

59,435

12,404 

8,521 

6,761 

9,193 

28,005 

38,187 

18,372 

9,044 

7,774

ter year 1947-48 .......... 180,710

Mar

267 

251 

235 

226 

220

214 

209 

200 

195 

181

178 

178 

176 

171 

168

163 

161 

159 

154 

149

308 

444 

305 

260 

238

220 

209 

220 

238 

£35 

229

Maximum

2,410 

996 

1,460

3.010

824 

682 

444 

688 

2,220 

2,100 

880 

462 

769

2,410

Apr.

226 

220 

214 

206 

200

197 

189 

186 

200 

206

203 

197 

192 

195 

229

343 

327 

331 

339 

378

546 

688 

580 

505 

439

391 

354 

327 

301 

284

May

267 

254

331 

339 

327

632 

600 

495 

448 

426

426 

595 

840 

710 

610

666 

715 

671 

644 

769

1,050 

1,140 

1,140 

1,400 

1,760

1,920 

2,040 

2,220 

1,760 

1,450 

1,360

June

1,400 

1,500 

1,600 

1,550 

1,550

1,700 

1,980 

2,100 

1,920 

1,700

1,450 

1,310 

1,310 

1,180 

1,100

1,060 

988 

952

1,020 

1,100

1,060 

952 

945 

952 

938

a900 

a940 

al.OOO 

al,050 

a980

Minimum Mean

115 545 

214 353 

184 483

101 437

251 400 

176 294 

149 218 

186 306 

254 903 

900 1,213 

408 593 

217 292 

173 259

115 494

Peak discharge (base, 2,000 sec. -ft.).- Oct. 18 (10 p.m.) 5,740 sec. -ft

19'ta

July

a880 

a780 

a720 

a740 

a72T

a710 

a721 

a660 

a601 

a66O

a650 

a590 

a550 

a560 

580

610 

649 

649 

627 

5F5

550 

530 

486 

430 

408

452 

505 

412 

439 

448 

462

Per 

square 

mile

5.80 

3.76 

5.14

4.65

4.26 

3.13 

2.32 

3.26 

9.61 

13.5 

6.31 

3.11 

2.76

5.26

.; Dec.

Aug.

462 

439 

421 

378 

343

324 

298 

301 

298 

301

298 

284 

312 

291 

274

257 

277 

270 

257 

251

284 

260 

238 

257 

260

254 

251 

232 

229 

217 

226

Sept.

206 

241 

277 

223 

197

184 

176 

176 

178 

178

178 

178 

173 

324 

769

408 

291 

241 

214 

203

331 

324 

267 

241 

217

232 

291 

335 

277 

244

Runoff

Inches

6.68 

4.19 

5.93

63.08

4.91 

3.37 

2.67 

3.64 

11.08 

15.11 

7.27 

3.58 

3.08J

71.51

Acre-feet

33,510 

20,990 

29,700

316,200

24,600 

16,900 

13,410 

18,230 

55,550 

75,740 

36.440 

17,940 

15,420

358,400

23 (3 p.m.) 2,040

sec.-ft.; May 28 (9:30 a.m.) 2,480 sec.-ft.-

a Ho gage-height record! discharge computed on basis of records for Dungeness Fiver near Sequin 

and Duckabush River near Brinnon.
48 DUCKABUSH RIVER BASIN

Duckabush River near Brlnnon, Wash.

Location^- Water-stage recorder, lat. 47°41'00", long. 1230 °0'40", In SW^-SW^- sec. 1, T. 25

 N., KT 3 W., 4| miles upstream from mouth and 5 miles west of Brlnnon.

Drainage area.- 66 square miles.

Records available.- June 1938 to September 1948. August 1910 to December 1E11 at practically same site but different datum, published as Duckabush River near Duekabush.

Average discharge.- 10 years (1938-48), 365 second-feet.

Extremes.- Maximum discharge during year, 5,970 second-feet Oct. 18 or 19 (g-Jge height,

 7.90 feet, from high-water mark in well); minimum, 56 second-feet Dot. 1 (gage height, 

1.45 feet).

1910-11, 1938-48: Maximum discharge, 6,080 second-feet Dec. 15, 1939, Dec. 2, 1941 

(gage height, 8.07 feet); minimum, 45 second-feet Oct. 26, 28, 29, 1942 (gage height, 

1.36 feet).

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

No diversion or regulation.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

1.4 50 2.3 222 4.0 1,030 

1.6 78 2.6 318 4.5 1,470 

1.8 111 3.0 481 5.0 2,000 

2.0 150 3.5 718 5.7 2,840

Discharge, in second-feet, water year October 1947 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.

58 

286 

283 

204 

140

113 

102 

355 

673 

626

506 

322 

280 

231 

1,430

988 

1,360 

2,090 

2,750 

950

604 

490 

455 

399 

399

416 

387 

693 

, 512 

599 

1,820

Nov.

1,250 

744 

570 

472 

395

355 

416 

437 

351 

322

290 

270 

261 

245 

228

222 

254 

228 

214 

199

189 

'184 

172 

170 

196

280 

228 

206 

194 

189

Dec.

191' 

182 

191 

172 

165

154 

148 

148 

144 

140

134 

134 

416 

340 

257

605 

1,080 

890 

648 

499

584 

594 

2,060 

1,400 

390

668 

925

800 

589 

481 

530

Jan.

1,110 

882 

623 

530 

468

561 

575 

548 

463

433

379 

329 

300 

290 

277

270 

267 

270 

264 

254

240 

240 

250 

250 

230

220 

210

200 

190 

180 

160

Feb.

155 

150 

150 

145 

130

125 

130 

150 

140 

130

120 

110 

100 

220 

450

400 

1,000 

1,100 

550 

400

350 

600 

500 

400 

380

550 

480 

400 

350

forays

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Hay 

June 

July 

Angu 

Sept

Wa

mber ...................... 1

0,521 

9,731 

6,159

lendar year 1947 ......... 131,814

ary 1

st ........................

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

1,463 

9,865 

6,910 

9,759 

4,681 

5,821 

1,277 

5,225 

6,229

ter year 1947-48 .......... 157,641

Mar.

330 

290 

260 

230 

210

190 

180 

168 

161 

152

150 

150 

150 

148 

146

146 

140 

136 

130 

130

457 

585 

355 

280 

248

222 

204 

231 

261 

245 

225

Maximum

2,750 

1,250 

2,060

4,200

1,110 

1,100 

585 

890 

1,670 

1,520 

570 

254 

950

2,750

Apr.

212 

201 

196 

189 

182

179 

177 

170 

204 

228

222

204 

196 

204 

300

446 

399 

379 

367 

375

643 

890 

668 

534 

450

387 

336 

300 

273 

248

May

1

I, 

1

1 

1, 

1, 

1, 

1,

Minimum

58 

170 

134

58

160 

100 

130 

170 

222 

570 

242 

128 

91

58

228 

222 

454 

416 

408

718 

618 

485 

424 

391

395 

772 

280 

890 

658

693

718 

633 

575 

668

925 

925 

860 

030 

370

470 

520 

670 

240 

030 

995

June

1,030 

1,030 

1,150 

1,030 

1,030

1,190 

1,420 

1,520 

1,420 

1,150

960 

860 

860 

770 

718

718 

663 

638 

663 

718

693 

599 

589 

589

570

570 

594 

693 

718 

668

Mean

662 

324

521

361

370 

340 

223 

325 

796 

861 

364 

169 

208

431

1948

July

570 

499 

490 

485 

441

472 

437 

391 

359 

391

363 

344 

329 

355 

379

387 

395 

403 

383 

363

336 

333 

297 

264 

242

267 

297 

242 

245 

254 

264

Per 

square 

mile

10.0 

4.91 

7.89

5.47

5.61 

5.15 

3.38 

4.92 

12.1 

13.0 

5.52 

2.56 

3.15

6.53

Aug.

254 

248 

231 

217 

196

191 

179 

172 

174 

170

168 

159 

174 

172 

163

154 

161 

157 

148 

144

168 

165 

144 

142 

144

138 

146 

140 

128 

142 

136

Sept.

119 

134 

159 

136 

119

109 

104 

99 

99 

99

96 

94 

91 

259 

950

446 

283 

214 

182 

161

225 

248 

222 

194 

172

179 

254 

304 

264 

214

Runoff

Inches

11.56 

5.43 

9.11

74.27

6.46 

5.56 

3.89 

5.50 

13.91 

14.55 

6.35 

2.94 

3.53

88.82

Acre-feet

40,700 

19,300 

32,050

261,400

22,740 

19,570 

13,710 

19,360 

48,950 

51,220 

22,370 

10,360 

12,360

312,700

Peak discharge (base, 2,5oO sec. -ft.).- Oct. 15 (3:30 to 4:30 p.m.) 2,530 sec. -ft,; Oct. 18 or 19

(time unknown) 5,970 sec.-ft.; Oct. 31 (3 p.m.) 2,900 sec.-ft.; Dec. 23 (2 p.m.) 2,900 s<?c.-ft.

Note.- No gage-height record Oct. 19, 20, Jan. 21 to Mar. 7; discharge computed on basis of recorded range In stage and records for South Pork Skokomlsh River near Union.
SKOKOMISH RIVER BASIN

North Fork Skokomish River below Staircase Rapids, near Hoodsport, Wash.

Location.- Water-stage recorder, lat. 47°30'55", long. 123°19'45", In NWij sec. 4, T. 23 

N. , K. 5 W., three-quarters of a mile upstream from Lake Cushman, 2 miles upstream 

from Dry Creek, and llj miles northwest of Hoodsport.

Drainage area.- 60 square miles.

Records available.- July 1924 to September 1948.

Average discharge.- 24 years, 458 second-feet.

Extremes.- Maximum discharge during year, 7,810 second-feet Oct. 18 (gage height, 9.30 

reet), from rating curve extended above 5,000 second-feet; minimum, 54 second-feet 

Oct. 1 (gage height, 1.60 feet).

1924-48: Maximum discharge, 23,300 second-feet Nov. 5, 1934 (gage height, 14.4 

feet, from floodmarks), from rating curve extended above 3,200 second-feet; minimum 

recorded, 16 second-feet Sept. 23, 1930 (gage height, 1.12 feet).

Remarks.- Records good. No diversion or regulation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.6 54 2.9 381 5.O 1,820 

1.8 82 3.2 510 5.5 2,310 

2.0 117 3.6 730 6.3 3,230 

2.3 186 4.0 1,000 

2.6 273 4.5 1,390

Discharge, in second-feet, water year October 1947 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.

64 

895 

461 

293 

200

164 

145 

696 

927 

748

565 

389 

332 

283 

1,910

1,230 

1,940 

3,190 

2,420 

1,150

804 

670 

670 

585 

622

595 

603 

1,110 

804 

923 

2,460

Nov.

1,470 

937 

742 

610 

540

515 

646 

640 

515 

496

444 

414 

418 

373 

358

339 

426 

377 

343 

321

300 

'287 

270 

264 

280

304 

270 

254 

239 

254

Dec.

254 

251 

276 

242 

228

216 

210 

205 

197 

194

191 

208 

1,220

634 

470

1,260 

1,530 

1,230 

853 

640

748 

748 

2.5OO 

1,640 

IrllO

874 

1,680 

1,270 

867 

688 

784

Jan.

1,390 

1,150 

818 

682 

590

688 

778 

724 

616 

560

483 

426 

397 

389

366

351 

351 

347 

343 

336

332 

347 

389 

385

sei

325 

307 

290 

276 

258 

245

Feb.

236 

219 

216 

208 

200

189 

189 

202 

184 

176

164 

159 

159

213 

314

27O 

1,110 

1,260 

610 

456

410

545 

456 

385 

397

506 

435 

377 

339

forays

Octc 

Hove 

Dece

Ca

Janu 

Febi 

Hare 

Apri 

May 

June 

Julji 

Augxi 

Sept

Us

lendar year 194 

ary

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

27,838 

13,646 

23,418

69,003

15,290 

10,584 

8,442 

13,153 

30,994 

29,221 

10,829 

4,951 

8,415

ter year 1947-48 .......... 196,781

Peak discharge (base, 3,000 sec. -ft.).- 0

sec. -ft.; Dec. 16 (9:30 p.m.) 3,050 sec. -ft

Mar

314 

283 

261 

245 

236

230 

222 

213 

202 

191

189 

189 

186 

181 

178

176 

171 

174 

166 

161

709 

751 

431 

343 

300

270 

254 

287 

329 

307 

293

Maximum

3,18C 

1.47C 

2,500

4,700

1,390 

1.26C 

751 

1,310 

1,730 

1,680 

555 

239 

1,200

3,180

Apr.

273 

258 

242 

233 

219

213 

205 

197 

225 

236

228 

216 

239 

245 

393

590 

575 

550 

525 

555

860 

1,310 

1,040 

804

640

525 

461 

402

362 

332

Hay

314 

300 

634 

585 

712

1,310 

881 

682 

585 

530

510 

822 

1,430 

1,230 

923

965 

1,000 

825 

766 

930

,230 

,190 

,110 

,310 

,640

,640 

,680 

1,730 

1,270 

1,110 

1,150

Minimum

64 

239 

191

58

245 

159 

161 

197 

300 

6OO 

233 

121 

96

64

June

1,230 

1,270 

1,350 

1,230 

1,270

1,430 

1,640 

1,680 

1,550 

1,270

1,070 

1,000 

1,040 

930 

860

825 

742 

730 

766 

790

730 

634 

616 

622 

600

600 

622 

718 

742 

664

Mean

898

455 

755

463

493 

365 

272 

438 

1,000 

974 

349 

160 

280

538

ct. 18 (7 p.m.) 7,810 sec. -ft 

.; Dec. 23 (l p.m.) 3,610 sec

1948

July

555 

488 

483 

470 

439

465 

422 

381

366 

377

351 

332 

325 

347 

370

373 

381 

377 

354 

325

307 

300 

273 

245 

236

270 

276 

233 

233 

236 

239

Per 

square 

mile

15.0 

7.58 

12.6

7.72

8.22 

6.08 

4.53 

7.30 

16.7 

16.2 

5.82 

2.67 

4.67

8.97

Aug.

239 

225 

210 

197 

186

181 

171 

168 

166 

161

156 

152 

176 

156 

156

152 

171 

156 

138 

136

159

145 

132 

132 

128

125 

132 

138 

121 

152 

134

Sept.

119 

255 

230 

161 

138

128 

119 

115 

113 

110

104 

99 

96 

500 

1,200

478 

314 

242 

208 

194

439 

439 

414 

318 

267

270 

370 

397 

311 

267

Runoff

Incf es

17.25 

8.46 

14-52

104.75

9.48 

6.56 

5.23 

8.15 

19.21 

18.11 

6.71 

3.07 

5-22

121.97

Acre-feet

55,220 

27,070 

46,450

335,200

30,330 

20,990 

16,740 

26,090 

61,480 

57,960 

21,480 

9,820 

16,690

390,300

! Oct. 31 (1 p.m. ) 4,000

-ft.
5U SKOKOMISH RIVER BASIN

North Fork Skokomish River near Potlatch, Wash.

Location.- Water-stage recorder, lat. 47°20', long. 123°14', In NE^NW-j sec. 7, T. 21 N. , 

R. 4 W. , on left "bank, three-quarters of a mile upstream from itiouth and 6 miles southwest of Potlatch.

Records available.- March 1944 to September 1948.

Extremes.- Maximum discharge during year not determined, occurred Oct. 18 or 19 while 

recorder was not operating; minimum, 7.9 second-feet Oct. 1, Sept. 10, 11.

1944-48: Maximum discharge not determined, occurred Oct. 18 or 19, 1947; minimum, 

3.2 second-feet Sept. 10, 11, 1944.

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

those for periods of no gage-height record and below 10 second-feet, which are poor. 

Flow completely regulated by irishman Reservoir Nos. 1 and 2.

Discharge, in second-feet, water year October 1947 to September 194?

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

72 

46 

35 

30

22 

18 

30 

40 

50

55 

45

35 

30 

90

80 

700 

1,200

2,020

1,460

990 

664 

648 

659 

605

520 

445

300 

35 

33 

78

Nov.

1,400 

751 

872 

745 

372

50 

44 

39 

37 

37

35

34 

35

34

37

34 

36 

34 

34

35

33 

33 

33 

33 

32

30 

28

26 

30 

36

Dec.

37 

34 

36 

35 

34

32 

32 

32 

32 

33

30 

33 

105 

116 

99

134 

247 

387 

130 

53

43 

67 

107 

450 

300

220 

200 

190 

190 

180 

280

Jan.

410 

350 

300 

270 

250

240 

240 

230 

230 

220

220 

2OO 

180 

150 

140

120 

110 

100 

95 

93

85 

81 

78 

76 

67

62 

58 

57 

57

53 

50

Feb

50

47 

47 

44

42 

43 

67 

71 

62

53 

50 

49 

91

226

230 

368 

324 

219 

186

209 

277 

212 

166 

152

160 

147 

132 

120

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

mber. .....; ............................

lendar year 194 

ary

ter year 1947-48 .......................

Mar.

118 

105 

99 

93 

85

81 

74 

71 

67

64

62 

57 

55 

52 

52

50 

50 

50 

50 

50

240 

320 

210 

160 

140

120 

110 

100 

95 

85 

80

Apr.

75 

70 

65 

65 

70

75 

75 

80 

107 

112

105 

101 

99 

93 

85

81 

81 

78 

71 

65

67 

78 

87 

105 

125

110 

100 

90 

80 

75

Secondfoot-days

11,044 

5,009 

3,898

34, 184 '.5

4,872 

3,893 

3,045 

2,570 

4,322 

867 

412 

372.7 

577.3

40,882.0

May

70 

65 

80 

100 

95

170 

120 

90 

80 

70

60 

80 

140 

240 

200

170 

150 

130 

120 

107

101 

91 

85 

78 

69

67 

67 

203 

686 

467 

71

Maximu,

2,020 

1,400 

450

2,020

410 

368 

320 

125 

686 

53 

16 

17 

50

2,020

June

53 

47 

43 

40 

39

36 

34 

33 

32 

29

34

32 

33 

32 

30

30

26 

24 

24

23 

22 

21 

20 

19.5

18.5 

17 

16 

15.5 

15.5

July

14.5 

14.5 

14.5 

14.5

16

16 

16 

15.5 

14.5 

14.5

14.5 

14.5 

14.5 

14.5 

14.5

13.5 

13 

13 

14.5 

14

12.5 

11.5 

11 

11 

10.5

10.5 

11 

10.5 

10.5 

11 

11

Aug.

11 

11 

11 

11.5 

11.5

13.5 

13 

12.5 

12.5 

11.5

11.5 

11.5 

12.5 

11.5 

15.5

15.5 

17 

13.5 

12.5 

12.5

12.5 

12 

11 

11.5 

11

10.5 

11 

11 

9.6 

10.5 

9.6

Minimum Mean

9.0 356 

26 167 

30 126

4.4 93.7

50 157 

42 134 

50 98.2 

65 85.7 

60 139 

15.5 28.9 

10.5 13.3 

9.6 12.0 

9.0 19.2

9.0 112

Sept

9.6 

11 

13.5 

12.5 

11.5

11

9.6 

9.6 

9.0 

9.0

9.0 

9.0 

9.0 

11

50

27 

18.5 

15.5 

13 

12.5

18.5 

25 

32 

26 

21

24 

37 

39 

40 

34

Runoff in 

acre-feet

21,910 

9,940 

7,730

67,820

9,660 

7,720 

6,040 

5,100 

8,570 

1,720 

817 

739 

1,150

81,100

Note.- No gage-height record Oct. 4-18, Dec. 25 to Jan. 18, Mar. 16 to Apr. 8, Apr. 26 to May 17j 

discharge computed on basis of recorded range in stage and records for nearby streams. Shiftingcontrol method used Oct. 1-3, Oct. 20 to Dec. 24, June 30 to Sept. 30.
SKOKOMISH RIVER B^SIN 51 

Skokomish River near Potlatch, Wash.

Location.- Water-stage recorder, lat. 47°19'00", Ions. 123°11'05", in M^NW^ sec. 15, T. 

21 u., R. 4 W., half a mile upstream from U. S. Highway 101, 2.8 miles downstream from 

North Fork, 4.7 miles southwest of Potlatch, and 5.5 miles upstream from mouth.

Drainage area.- 237 square miles.

Records available.- July 1343 to September 1948.

Extremes.- Maximum discharge during year, 15,100 second-feet Oct. 19 (gage height, 12.97 

feet), from rating curve extended above 10,000 second-feet; minimum, 164 second-feet 

Oct. 1.

1943-48: Maximum discharge, 16,700 second-feet Feb. 7, 1945 (gage height, 11.21 

feet, former datum), from rating curve extended above lu.000 second-feet; 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, those above 10,000 

second-feet, and those below 300 second-feet, which are fair. In normal years practically entire flow of North Fork is diverted at dam No. 2 and returned to sea through 

Cushman power plant No. 2.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

173 

1,780 

1,510 

1,310 

855

648 

532 

584 

1,340 

1,160

1,210 

902 

739 

648 

2,040

3,220 

4,540 

5,990 

9 , 640 

4,750

3,340 

2,830 

3,020 

2,890 

2,770

2,710 

2,530 

3,020 

2,230 

2, 230 

4,360

Nov.

4,940 

3,410 

2,960 

2,650 

2,240

1,460 

1,310 

1,360 

1,210 

1,120

1,020 

942 

910 

870 

894

862 

942 

958 

894 

848

795 

746 

711 

676

648

629 

610 

590 

577 

584

Dec.

622 

603 

648 

655

642

610 

590 

570 

558

551

551 

551

2,330 

2,290 

1,410

1,680 

3,580 

4,660 

3,530 

2,350

2,060 

2,060 

5,720 

4,900 

3,540

2,890 

3,220 

3,280 

2,710 

2, .410 

2,520

Jan.

5,990 

5,860 

3,800 

3,540 

2,960

3,280 

3,220 

3,280 

2,890

2,960

2,770 

2,200 

1,560

1,360 

1,210

1 , 070 

995 

942 

902 

825

781 

760 

76U 

753 

718

683 

636 

603 

584 

564 

538

Feb.

525 

501 

501 

495 

483

459 

465 

558 

584 

532

513 

489 

477

610 

1,680

1,560 

3,510 

4,090 

2,380 

1,730

1,620 

2,410 

2,060 

1,620 

1,510

1,900 

1,780 

1,510 

1 , 310

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Peak discharge (base, 8,400 sec. -ft.).- Oc

Mar.

1,260 

1,100 

982 

902 

848

795 

760 

739 

704 

669

648 

629 

610 

610 

590

590 

577 

616 

590 

577

2,250 

4,260 

2,120 

1,560 

1,260

1,090 

974 

934 

982 

942 

870

Apr.

818 

781 

753 

746 

725

760 

774 

'46

894 

1,070

1,010 

958 

1,010 

1,060

1,460 

1,460 

1,360 

1,210 

1,110

1,160 

2,000 

2,350 

2,120 

1 , 900

1,620 

1,360 

1,160 

1,050 

966

Secondfoot-days

75,501

38,366 

64,291

58,994 

37,862 

32,038 

35,511 

51,926 

20,745 

9,625 

7,087 

17,541

449,487

May

886 

840 

1,460 

1,840 

1,780

2,960 

2.29O 

1,780 

1,510 

1,310

1,160 

1,260 

2,790 

3,800 

2,840

2,230 

1,950 

1,680 

1,460 

1,360

1,410 

1,360 

1,210 

1.21C 

1,360

1,310 

1,310 

1,460 

1,680 

1,410 

1,020

Maximum

9,640 

4,940 

5,720

5,990 

4,090 

4,260 

2,350 

3,800 

982 

447 

250 

1,610

9,640

t. 19 (2 a.m.) 15,100 sf

June

982 

966 

966 

910 

886

902 

942 

950 

902

788 

746 

725 

704 

6F9

636 

610 

584 

564 

570

558 

532 

507 

495 

483

477 

465 

465 

471 

465

July

447 

417 

388 

383 

378

383 

372 

361 

344 

334

322 

306 

295 

295 

290

285 

285 

280 

295 

285

275

270 

265 

260 

255

255 

285 

265 

255 

250 

245

Minimum

173 

577 

551

169

538 

459 

577 

7 25 

840 

465 

245 

209 

204

173

Aug.

240 

240 

240 

236 

240

250 

236 

236 

227 

227

222 

218 

222 

214 

218

240 

240 

236 

218 

222

218 

240 

227 

218 

214

209 

218 

227 

222 

227 

245

Mean

2,436 

1,279 

2,074

1,103

1,903 

], 306 

1,033 

1,184 

1,675 

692 

310 

229 

585

1,228

'c.-ft.; Dec. 23 (5 p.

Sept.

232 

236 

394 

334 

290

2C5 

250 

236 

227 

218

214 

209 

204 

214 

1,610

1,210 

767 

570 

477 

429

794 

1,100 

1,120 

950 

774

711 

862 

942 

942 

760

Runoff in 

acre-feet

149,800 

76,100 

127,500

798,900

117,000 

75,100 

63,550 

70,440 

103,000 

41,150 

19,090 

14,060 

34,790

891,600

m. ) 8,830

sec.-ft.; Jan. 1 (9 p.m.) 9,920 sec.-ft

Note.- Shifting-control method used Oct. 1-17, Jan. 2 to May 8, May 14 to Sept. 30.
52 SKQKOMISH RIVER BASIN

South Fork Skokomish River near Potlatch, Wash.

Location.- Water-stage recorder, lat. 47°24', long. 123°18', in NW£ sec. 22, T. 22 N., R. 

5 W., at head of canyon, 2 miles downstream from Brown Creek and 7j miles west of 

Potlatcn.

Drainage area.- 68 square miles.

Records available.- October 1923 to September 1Q32, September 1946 to September 1948.

Average discharge.- 11 years, 528 second-feet.

Extremes.- Maximum discharge during year, 8,760 second-feet Oct. 18 (gage height, 11.93 

i'eet); minimum, 82 second-feet Oct. 1 (gage height, 1.15 feet).

1923-32, l l'46-48: Maximum discharge, about 11,500 second-feet probably Feb. 26, 

1932 (gage height, 15.1 feet, from high-water marks); minimum, 38 second-feet Sept. 15, 

1926.

Remarks - Records excellent exc«pt those for periods of shifting control, which are good. 

No diversion or regulation.

Rating table, water wear l°47-48, exceot neriods of shifting control 

(gage height, in feet, and discharge, in second-feet)

1.2 89 2.0 217 3.5 669 

1.4 117 2.3 280 4.0 920 

1.6 147 2.6 352 4.5 1,220 

1.8 180 3.0 469 5.0 1,560

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.

89 

1,440 

865 

692 

421

315 

256 

457 

948 

763

692 

487 

392 

340 

1,650

1,400 

2,260 

3,540 

3,690 

1,560

1,030 

813 

975 

788

715

692 

661 

1,340 

1,040 

1,200 

2,880

Nov.

1,840 

1,100 

892 

715 

625

543 

578

604 

524

437

436 

406 

406 

378 

378

378 

460 

436 

392 

365

340 

315 

296 

280 

273

267 

252 

243 

235 

252

Dec.

262 

258 

303 

294 

276

256 

245 

256 

229 

227

225 

239 

1,780 

1,110 

739

1,100 

1,990 

2,350 

1,520 

1,040

1,020

1,090 

3,890 

2,190 

1,380

1,100 

1,660 

1,380 

1,000 

813 

996

Jan.

2,760 

2,030 

1,280 

1,160 

975

1,220 

1,250 

1,220 

1,000 

920

813 

692 

604 

563 

524

487 

469 

469 

436 

427

406 

406 

421 

421 

392

378 

352 

340 

340 

315 

303

Feb.

298 

287 

282 

280 

269

262 

265 

278 

269 

258

252 

248 

243 

312 

692

616 

2,070 

2,280 

1,060 

813

715 

1,160 

948 

739 

715

975 

604 

715 

604

Month SecondMonth foot-days

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

st ........ ..............

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

34,391 

14,696 

31,218

'00,104

23,373 

18,509 

15,229 

19,547 

31,734 

15,287 

5,760 

3,712 

11,024

ter year 1947-48 .......... 224,480

Mar.

543 

487 

436 

406 

378

365 

352 

340 

327 

315

303 

294 

292 

287 

280

276 

269 

289 

273 

265

1,440 

1,860 

933 

692 

583

505 

452 

497 

543 

505 

452

Maximum

3,69C 

1,84C

3.39C

5,55C

2.76C 

2.28C 

1,860 

1,520 

2.29C 

788 

278 

142 

1.50C

3,890

Apr.

421 

392 

378 

365 

352

365 

352 

340 

452 

524

469 

436 

505 

524 

669

865 

865 

788 

692 

669

813 

1,520 

1,490 

1,220 

1,000

813 

692 

583 

524 

469

5.5 1,950 

6.0 2,350 

7.0 3,250 

8.0 4,240

1947 to September

May

421 

406 

945 

948 

956

1,640 

1,160 

892 

763 

669

604 

802 

2,100 

2,290 

1,560

1,320 

1,220 

1,000 

892 

892

1,000 

948 

339 

920 

1,060

1,040 

1,040 

1,04O 

865 

763 

739

Minimum

89 

235 

225

81

303 

243 

265 

340 

406 

298 

130 

103 

106

89

June

763 

739 

763 

692 

692

715 

788 

788 

739 

625

583 

543 

543 

524 

469

452 

421 

392 

392 

406

378 

352 

340 

327 

315

315 

298 

315 

315

303

Mean

1,109 

490 

1,007

548

754 

638 

491 

652 

1,024 

510 

186 

120 

367

613

Peak discharge (base, 3,800 sec. -ft.).- Oct. 17 (4 p.m.) 4,040 sec. -ft

1948

July

278

245 

2H 

233

241 

225 

217 

2^0 

200

189 

182 

178 

177 

178

177 

175 

175 

184 

170

161 

157 

150 

147 

144

147 

173 

149 

144 

135 

130

Per 

square 

mile

16.3 

7.21 

14.8

8.06

11.1 

9.38 

7.22 

9.59 

15.1 

7.50 

2.74 

1.76 

5.40

9.01

Aug.

129 

129 

126 

124 

123

129 

123 

116 

113 

110

109 

107 

113 

111 

117

126 

128 

122 

111 

109

126 

129 

114 

111

107

103 

118 

129 

117 

141 

142

Sept.

126 

197 

273 

194 

163

146 

132 

124 

117 

114

110 

107 

106 

217 

1,500

739 

436 

340 

280 

262

669 

715 

692 

543 

421

392 

505 

543 

469 

392

Runoff

Inches

18.31 

8.04 

17.07

109.43

12.78 

10.12 

8.33 

10.69 

17.36 

8.36 

3.15 

2.03 

6.03

122.77

; Oct. 18 (10 p

Acre feet

68,210 

29,150 

61,920

396,900

46,360 

36,710 

30,210 

36,770 

62,940 

30,320 

11,420 

7,360 

21,870

445,200

ra. } 8,760

=.-ft.;~Oct. 31 (2:30 p^m.) 4,78O sec.-ft.; Dec. 23 (2 p.m.) 5,660 see.-ft.; Jan. 1 (5 p.m.) 4,340 

sec.-ft.; Mar. 21 (10 p.m.) 3,840 sec.-ft.

Note.- Shifting-control method used Jan. 6. to Feb. 16, May 13 to July 10.
SKOKOMISH RIVER BASIN 53 

South Fork Skokomlsh River near Union, Wash.

Location.- Water-stage recorder, lat. 47°20i30", long. 123°16 I 3Q", In NE£ sec. 2, T. 21 

N. , R. 5 W., 2-g miles upstream from North Fork, 2.5 miles upstream from Vance Creek, 

and 8 miles west of Union.

Drainage area.- 81 square miles.

Records available.- August 1931 to September 1948.

Average discharge.- 17 years, 662 second-feet.

Extremes.- Maximum discharge during year, 9,730 second-feet Oct. 18 (gage height, 8-95 

reet); minimum, 81 second-feet Oct. l.(gage height, 3.06 feet).

1931-48: Maximum discharge, 21,600 second-feet Jan. 22, 1935 (gage height, 11.0 

feet), from rating curve extended above 11,000 second-feet; minimum, 62 second-feet 

Sept. 18, 1938.

Remarks.- Records excellent except those 1 above 2,000 second-feet and those for periods 

of shifting control, which are good. No diversion or regulation.

Rating tables, water year 1947-48, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet)

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

3.1 90

3.3 145

3.5 213

3.7 296

4.0 

4.3 

4.6 

5.0

450

650

900

1,300

5.5 1,890

6.0 2,600

6.8 3,980

3.4 

3.7 

4.0 

4.3 

4.6

107

205

360

585

850

5.0 

5.5 

6.0 

6.5 

7.0

1,250

1,850

2,560

3,400

4,380

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

93

1,360

864

698

462

353

305

459

1,000

802

746

552

468

405

1,670

1,520

2,490

3,820

4,340

1,820

1,240

960

1,07C

940

850

841

769

1,380

1,150

1,290

3,150

Nov.

2,320

1,400

1,110

931

823

742

742

769

662

619

561

505

505

482

482

460

553

537

498

445

423

388

360

348

336

324

300

290

280

290

-

Dec.

306

295

348

348

324

300

290

280

275

270

270

285

1,810

1,290

877

1,210

2,240

2,710

1,840

1,220

1,170

1,340

4,150

2,700

1,720

1,320

1,740

1,590

1,200

990

1,150

Jan.

3,290

2,580

1,660

1,450

1,220

1,490

1,530

1,510

1,270

1,250

1,110

913

787

733

662

602

577

569

545

513

482

475

490

490

452

423

388

367

354

336

306

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

295

285

280

275

255

246

255

290

280

250

241

228

223

360

940

850

2,320

2,700

1,440

1,060

970

1,490

1,230

960

931

1,220

1,080

913

787

_

-

Secondfoot-days

37,867

18,485

35,758

226,929

38,834

£2,654

19,613

23 , 666

39,040

16,467

5,934

4,084

12,022

364,414

Mar

742

662

585

545

513

490

468

445

430

409

381

374

367

360

360

354

348

360

354

348

1,770

.2,300

1,200

904

769

670

602

602

688

636

577

Maximum

4,340

2,320

4,150

6,400

3,290

2,700

2,300

1,660

2,800

877

270

1,500

4,340

Apr.

529

513

498

460

452

482

460

452

603

679

628

585

662

679

787

1,030

1,010

940

841

796

904

1,590

1,660

1,390

1,200

980

850

751

662

594

-

May

537

521

1,160

1,230

1,240

1,980

1,470

1,160

1,010

904

832

,070

,480

,800

,050

,660

,490

,280

,130

,090

,210

,150

,040

,090

,220

,180

,170

1,180

980

886

850

Minimum

93

280

270

83

306

233

348

452

521

300

135

117

120

93

June

841

850

877

787

769

796

850

868

805

697

628

594

577

561

513

490

445

423

416

423

395

360

342

330

312

306

300

306

306

300

-

Mean

1,232

616

1,153

622

930

781

633

789

1,259

549

191

132

401

722

July

270

246

250

246

246

250

241

232

218

214

210

205

197

189

185

181

173

173

189

173

165

158

158

145

142

143

169

148

145

139

135

Per

square 

mile

15.1

7.60

14.2

7.68

11.5

9.64

7.81

9.74

15.5

6 . 78

2.36

1 . 63

4.95

8.91

Aug.

135

]

]

L32

32

30

130

135

]:

L27

24

20

120

117

:

]

17

22

20

132

139

]:

]

42

39

24

120

139

]:

:

45

32

30

127

132

]

]:

:

35

42

35

58

162

Sept.

142

190

300

214

181

162

148

142

- 132

130

127

124

120

146

1,500

841

513

367

300

265

668

778

769

610

490

445

561

602

610

445

-

Runoff

Incl es

17.39

8.49

16.42

104 . 20

13 23

10'40

9.01

10.87

17.92

7.56

2.72

1 . 88

5.52

121.41

Acre-feet

75,110

36,660

70,920

450,100

57,170

44,930

38 , 900

46,940

77,430

32, 660

11,770

8, 100

23,850

524,400

Peak discharge (base, 6,000 sec.-ft.).- Oct. 18 (9 p.ra ) 9,730 sec.-ft.; Dec. 23 (1:30 p.m.) 6,100 

sec.-ft.

Note.- Shifting-control method used Dec. 23 to Feb. 17, May 3 to June 13.
54 UNION RIVER BASIN

Union River near Bremerton, Wash.

Location.- Water-stage recorder, lat. 47°31'50", long. 122°47'00", in SW-jNEj- sec. 34, T. 24 

N., K. 1 W., 500 feet upstream from county bridge and 7 miles west of Bremerton.

Records available.- October 1945 to September 1948.

Extremes.- Maximum discharge during year, 281 second-feet Oct. 18 (gage height, 3.39 feet); 

minimum, 0.7 second-foot Sept. 5, 9, 10, 11 (gage height, 0.52 foot)

1946-48: Maximum discharge, that of Oct. 18, 1947; minimum, 0.5 second-foot Aug. 25, 

26, Sept. 1-3, 1947 (gage height, 0.50 foot).

Remarks.- Records good. No diversion or regulation.

Rating tables, water year 1947-48 (gage height, In feet, 

nnd discharge, In second-feet)

Oct. 1 to Jan. 1 Jan. 2 to Sept. 30

0.5 0.5 1.0 5.9 1.8 50 

.6 1.0 1.2 11 2.0 73 

.7 1.7 1.4 19 2.2 98 

.8 2.8 1.6 31 2.5 13d

Discharge, In second-feet, water year Oc

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

3.0 

1.8 

1.5 

1.4

1.3 

1.2 

1.4 

1.8 

1.9

2.O 

1.8 

1.9 

1.9 

9.9

-17 

47 

112

132 

57

32 

23 

19 

15.5 

13

11.5 

10.5 

11 

9.8 

12 

20

Nov.

44 

41

29 

22 

13

15 

13 

11.5 

10.5 

9.5

8.6 

7.8 

7.5 

7.0

8.0

7.0 

7.3 

6.6 

6.3 

6.1

5.7 

5.7 

5.3 

5.1 

4.9

4.9 

4.8 

4.4 

4.4 

5.3

Dec.

5.7 

a5.S 

a5. 5 

a5. 4

a5. 2 

aS.l 

a5.0 

4.9 

5.5

5.9

5.7 

12.5 

16 

15.5

18.5

32 

46 

39 

28

23 

20 

35 

47

36

26 

25 

23 

20 

18 

25

Jan.

74

 3? 

48

37

39 

42 

40

33 

36

32

21 

18

13.5 

12 

11 

10 

9.3

8.8

8.2 

7.8 

7.3

6.9

6.5 

6.2 

6.0 

6.0 

5.8 

5.7

Feb.

5.7 

5.5 

5.4 

5.4

5.0

4.9

5.0 

11 

14

13

11.5 

10.5 

9.8 

14.5

37

40 

72 

61 

41

31

37 

40 

32 

24

22

25

19 

17

Month

Goto 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1947

ter year 1947-48 .......................

Mar.

15.5 

13.5 

12 

11 

10

9.8 

9.3 

9.0 

8.2 

7.8

7.5 

7.1 

6.9 

6.7 

6.4

6.2 

5.8

6.5 

6.0 

5.8

35 

71 

42 

28

17.5 

16 

14 

12.5 

11.5 

10

0.5 0.6 0.8 3.2 

.6 1.1 1.0 6.4 

.7 2.0 1.2 11

Note.- Same as preceding 

table above 1.2 fee';.

tober 1947 to September 1948

Apr.

9.6 

9.3 

9.3 

9.3 

9.6

10.5 

11.5 

11.5 

13 

15.5

15 

14 

13.5 

12 

11.5

10.5 

10.5 

9.6 

9.0 

8.0

7.8 

7.8 

7.5 

9.2 

10.5

10.5 

10 

9.6 

9.3 

9.0

Secondfoot-days

575.9 

336.2 

571.3

3.711-. 9

736.0 

641.2 

451.5 

313.9 

431.2 

160.6 

52.7 

31.9 

56.5

4,408.9

May

8.5

8.0 

15.5 

16.5 

20

35 

31 

23 

18.5 

17

14 

15.5 

2O 

23

23

21 

18.5 

16 

14 

12.5

11.5 

10. E 

9.6 

8.8 

8.0

7.5 

7.3 

13.5 

12 

11.5 

10.5

Maximum

132 

44 

47

142

86 

72 

71 

15.5 

35 

10.5 

2.8 

1.3 

5.2

132

June

10.5 

9.3 

8.8 

8.0 

7.5

6.9 

6.4

6.0 

5.5 

5.2

6.0 

5.8 

5.8 

5.4 

5.0

4.7 

4.7 

4.4 

4.2 

4.7

4.6 

4.2 

4.1 

4.0

3.8

3.6 

3.2 

3.0 

2.7 

2.6

July

2.4

2.2 

2.3 

2.3

2.8 

2.4 

2.2 

2.1

1.9

1.8 

1.8 

1.7 

1.7 

1.5

1.4 

1.3

1.5 

1.6 

1.6

1.5 

1.4 

1.4

1.3 

1.2

1.2 

1.3 

1.3 

1.2 

1.1 

1.0

Aug.

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 

1

1

Minimum Mean

0.8 18.6 

4.4 11.2 

4.9 18.4

.5 10.2

5.7 23.7 

4.9 22.1 

5.8 14.6 

7.5 10.5 

7.3 15.5 

2.6 5.35 

1.0 1.70 

.9 1.03 

.7 1.88

.7 12.0

Peak discharge (base, 90 see. -ft.).- Oct. 18 (10:30 p.m.) 281 sec. -ft.; Jan. 1 (5 p.m.)

.O 

.0 

.O 

.0 

.1

.3 

.1

.O 

.O 

.O

.0 

.0 

.1 

.0 

.2

.1

.0 

.0 

.0

.0 

.1

.0

.0.1

.0

.0

.0 

0 

9 

0 

9

Sept.

0.8 

.9 

1.0 

.9 

.8

.8 

.8 

.7 

.8 

.7

.8 

.8 

.8 

.9 

4.6

2.7 

2.0 

1.7 

1.4

1.3

1.6 

1.9 

1.9 

1.8 

1.5

3.4 

4.6 

5.2 

5.0 

4.4

Runoff in 

acre-feet

1,140 

667

1,130

7,350

1,460 

1,270 

896 

623 

954 

319 

105 

63 

112

8,740

125

sec.-ft.; Mar. 22 (1:30" a. m. ) 92 sec.-ft.

a No gage-height record; discharge Interpolated.
UNION RIVER BASIN

Location.- Water-stage recorder, lat, 47°28'20", long. 122°49'40", in NE^- se^. 20, T. 23 

N., K. 1 W., at highway bridge, 1 mile north of Belfair and 2 miles upstream from 

mouth.

Drainage area.- 19.0 square miles.

Records available.- July 1947 to September 1948.

Extremes. - Maximum discharge during year, 1,090 second-feet Oct. 19 (gage height, 6.40

feet) , from rating curve extended above 500 second-feet; minimum, 15 second-feet Oct. 1 

(gage height, 1.49 feet).

1947-48: Maximum discharge, that of Oct. 19, 1947; minimum, 13 second-feet Sept. 

29, 1947 (gage height, 1.44 feet).

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

those above,500 second-feet, which are poor. City of Bremerton at times diverts entire 

low-water flow about 5 miles above station.

Rating tables, water year 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

2.3 78

2.6 123

3.0 195

3.4 E75

1.5 

1.7 

1.9 

2.1

Oct. 19 to Sept. 30

20 2.3 91

2.6 132

3.0 198

3.5 297

4.0 408

4.5 532

5.0 668

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

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 

28 

21 

18 

17

17 

16 

18 

21 

21

22 

19 

19 

19 

39

52 

126 

258 

585 

182

90

65 

61 

48 

41

37 

34 

36 

32 

43 

72

Nov.

135 

118 

87 

63 

50

43 

39 

35 

32 

30

27 

26 

26 

26 

30

25 

27 

25 

24 

23

22 

22 

22 

21 

21

21 

21 

20 

20 

23

Dec.

29 

25 

25 

22 

22

22 

22 

21 

21 

23

25 

22 

39 

47 

43

52 

96 

132 

115 

80

71 

63 

0.22 

147 

103

79 

94 

86 

70 

59 

90

Jan.

289 

343 

184 

165 

121

144 

152 

135 

111 

131

112 

91

76 

65 

57

51 

47 

45 

41 

39

38

36 

35 

35 

33

32 

32 

31 

32 

32 

32

Feb.

32 

31 

31 

32 

31

30 

32 

66

65 

49

43 

39 

38 

51 

124

129 

221 

177 

117 

96

138 

146 

107 

84 

84

104 

81 

70 

62

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year

ter vear 1947-48 .......................

Mar.

61 

53 

47 

45 

43

43 

43 

41 

38 

37

37 

35 

35 

34 

33

33 

32 

36 

34 

33

162 

284 

135 

98 

86

68 

60 

54 

48 

46 

43

Apr.

41 

42 

43 

43 

44

46 

47 

44 

53 

62

55 

51 

47 

44 

43

42 

42 

39 

37 

36

35 

36 

35 

44 

52

45 

40 

39 

41 

39

Secondfoot-days

2,072 

1,104 

1,867

-

2,767 

2,310 

1,877 

1,307 

1,796 

912 

772 

707 

744

1H./>^F

May

35 

35 

70

65 

68

119 

94 

75 

62 

60

54 

64 

77 

84 

76

70

66 

55 

51 

48

44 

42 

39 

38 

35

35 

35 

59 

53 

47 

41

Maximum

585 

135 

147

-

343 

221 

284 

62 

119 

39 

29 

25 

39

SRF,

June

39 

36 

35 

33 

32

31 

31 

30 

30 

30

33 

32 

32 

31 

30

30 

30 

29 

28

31

30 

30 

28 

28 

28

28 

27 

27 

Zl 

SB

July

26 

26 

25 

27

26

29 

27

26 

25 

25

25 

25 

25 

24

25

24 

24

25 

25 

25

24 

24 

24 

24 

24

24 

25 

24 

24 

24 

22

Minimum

15 

20 

21

-

31 

30 

32 

35 

35 

26 

22 

22 

20

15

Aug.

22 

22 

23 

23 

23

24 

23 

22 

22 

22

23 

22 

23 

22 

25

24 

23 

22 

22

23

24 

22 

22 

24 

23

22 

23 

23 

22 

24 

23

Mean

66.8 

36.8 

60.2

-

89.3 

79.7 

60.5 

43.6 

57.9 

30.4 

24.9 

22.8 

24.8

4.9.8

Sept.

22 

22 

22 

22 

22

21 

21 

21 

21 

21

21 

21 

20 

2H 

39

26 

24 

22 

22 

22

24 

26 

27 

25 

23

32 

35 

38 

32 

28

Runoff in 

acre-feet

4,110 

2,190 

3,700

-

5,490 

4,580 

3,720 

2,590 

3,560 

1,810 

1,530 

1,400 

1,480

3K.1RO

400 see.-ft.).- Oct. 19 (3 a.m.) 1,090 sec.-ft.; Jan. I (10 p.m.) 545 sec.-

ft.; Mar. 21 U2 p.m.) 444 sec.-ft.

Note.- Shifting-control method used Oct. 19 to Dec. 17.

939922 0-51-5
56 MISSION CREEK BASIN

Mission Lake near Bremerton, Wash.

Location.- Wtter-stage recorder, lat. 47°32', long. 122°50', In NEvNWv sec. 32, T. 24 N. 

H- 1 W., 500 feet from lake outlet and 9| miles west of Bremerton.

Records available.- June 1945 to September 1948.

Extremes.- Maximum gage height during year, 4.71 feet Jan. 2; minimum, 2.11 feet Oct. 1. 

~1945-48: Maximum gage height, 5.11 feet Feb. 14, 1947; minimum, 1.9£ feet Sept. 5,

Remarks.- No diversion or regulation.

Gage height, in feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.11

2.24

2.26

2.26

2.26

2.25

2.25

2.27

2.30

2.32

2.33

2.33

2.33

2.33

2.45

2.57

2.76

3.20

4.18

4.30

4.15

3.99

3.88

3.76

3.65

3.57

3.49

3-45

3.40

3.40

3.50

Nov.

3.70

3.82

3.84

3.79

3. '73

3.66

3.60

3.53

3.47

3.41

3.36

3.31

3.27

3.22

3.22

3.19

3.17

3.14

3.11

3.09

3.06

3.03

3.01

2.99

2.98

2.95

2.94

2.92

2.90

2.90

-

Dec.

2.94

2.93

2.92

2.90

2.89

2.88

2.87

2.86

2.85

2.87

2.88

2.88

2.95

2.99

3.01

3.08

3.25

3.56

3.78

3.84

3.84

3.82

3.93

4.10

4.11

4.05

4.05

4.01

3.93

3.86

3.86

Jan.

4.22

4.70

4.67

4.57

4.42

4.38

4.35

4.33

4.24

4.25

4.22

4.12

4.02

3.92

3.82

3.73

3.65

3.57

3.51

3.44

3.39

3.35

3.30

3.26

3.22

3.18

3.14

3.11

3.09

3.08

3.05

Feb.

3.04

3.02

3.01

2.99

2.97

2.94

2.95

3.09

3.15

3.15

.14

.14

.14

.20

.45

.64

.96

.15

.14

.10

.14

.17

.13

.05

3.98

3.96

3.89

3.82

3.74

-

Mar.

3.69

3.62

"3.56

3.50

3.46

3.42

3.38

3.35

3.31

3.27

3.24

3.21

3.18

3.15

3.13

3.10

3.07

3.06

3.04

3.02

3.28

3.83

3.94

3.92

3.88

3.80

3.71

3.63

3.56

3.50

3.44

Apr.

3.37

3.34

3.32

3.30

3.28

3.28

3.27

3.25

3.28

3.32

3.32

3.32

3.32

3.30

3.29

3.28

3.28

3.26

3.23

3.20

3.18

3.18

3.16

3.17

3.21

3.20

3.20

3.18

3.17

3.16

May

3.15

3.15

3.28

3.37

3.47

3.69

3.78

3.81

3.77

3.74

3.69

3.67

3.75

3.82

3.83

3.83

3.79

3.74

3.66

3.62

3.56

3.49

3.43

3.38

3.33

3.27

3.23

3.30

3.32

3.30

3.26

June

3.23

3.19

3.15

3.12

3.09

3.06

3.03

2.99

2.96

2.92

2.92

2.91

2.90

2.89

2.86

2.83

2.82

2.80

2.78

2.78

2.77

2.75

2.73

2.72

2.70

2.68

2.67

2.65

_

_

-

July '

_

_

_

_

-

_

_

_

_

-

_

-

-

_

2.45

2.43

2.42

2.40

2.40

2.39

2.38

2.37

2.36

2.35

2.35

2.34

2.34

2.33

2.32

2.32

2.31

Aug.

2.30

2.29

2.29

2.28

2.28

2.30

2.29

2.28

2.28

2.27

2.26

2.26

2.27

2.27

2.29

2.29

2.29

2.28

2.28

2.27

2.28

2.28

2.28

2.28

2.28

2.27

2.27

2.28

2.28

2.29

2.27

Sept.

2.27

2.27

2.27

2.26

2.25

2.25

2.24

2.22

2.21

2.19

2.19

2.19

2.19

2.21

2.37

2.37

2.36

2.36

2.34

2.33

2.35

2.36

2.36

2.35

2.33

2.38

2.44

2.48

2.49

2.48

-
MISSION CREEK BASIN 

Mission Creek near Bremerton, Wash.

Location.- Water-stage recorder, lat. 47°32 

R. 1 W., on Mission Lake, 300 feet upstream 

Bremerton.

long. 122°50', In NE^NWi sec. 32, T. 24 N. 

from lake outlet and 9i miles west of

Drainage area.- 1.9 square miles.

Records available.- June 1945.to September 1948.

Extremes.- Maximum discharge during year, 38 second-feet Jan. 2 (gage height, 4.71 feet); 

no flow Oct. 1.

1945-48: Maximum discharge, 51 second-feet Feb. 14, 1947 (gage height, 5.11 feet); 

no flow at times each year.

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

tnose for period of no gage-height record, which are poor. So diversion. Natural 

regulation by Mission Lake.

Rating tables, wjter year 1947-48, except period of shifting control 

(gage height, in feet, and discharge, in second-1'eet )

Jan. 2 to Sept. 30

2.2

2.3

2.4 

2.6 

2.8

1.5 

2.7

3.O 

3.3 

3.6 

3.9 

4.2

4.O 

6.2 

9.2

15

22

2.2

2.3

2.4

2.5

2.6

1.1

1.6

2.8 

3.0 

3.2 

3.4 

3.6

2.9

4.3

5.8

7.6

10

3.8 

4.2 

4.6

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.2 

.2 

.2

.1 

.1 

.2

.2 

.3

.3 

.3 

.3 

.3 

.8

1.4 

2.5 

5.4 

21 

24

20 

16.5 

14 

12 

9.9

8.8 

7.9 

7.5 

7.1 

7.1 

8.0

Nov.

11 

13 

13.5 

12.5 

11.5

10 

9.2 

8.4 

7.7 

7.2

6.7 

6.3 

6.0 

5.6 

5.6

5.4 

5.2 

5.0 

4.8 

4.6

4.4 

 4.2 

4.1 

4.0 

3.9

3.7 

3.6 

3.5 

3.3 

3.3

Dec.

3.6 

3.5 

3.5 

3.3 

3.3

3.2 

3.1 

3.1 

3.0 

3.1

3.2 

3.2 

3.7 

4.0 

4.1

4.6 

5.8 

8.7 

12 

13.5

13.5 

13 

15.5 

19 

19.5

18 

18 

17 

15.5 

14 

14

Jan.

22 

37 

37 

34 ' 29

28 

28 

27 

25 

25

24 

21 

19 

16.5 

14

12 

10.5 

9.3 

8.4 

7.5

6.8 

6.3 

5.7 

5.3 

4.9

4.5 

4.2 

4.0 

3.9 

3.8 

3.6

Month

Octc 

Hove 

Dece

Ca

Jami 

Febt 

Marc 

Apr! 

May 

June 

Julj 

Augvi 

Sept

We

lendar year 1947 

arv

Tiary

1 ..... ...................

st . . . . ...................

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

ter year 1947-48 ..........

Feb.

3.5 

3.4 

3.3 

3.2 

3.0

2.8 

2.9 

3.9 

4.3 

4.3

4.2 

4.2 

4.2 

4.9 

7.6

11

17.5 

22

21

22 

23 

22 

19.5 

18

17. F 

16 

14 

12.5

Secondfoot-days

176.7 

197.2 

272.5

1,847.5

487.2 

317.7 

268.5 

187.8 

303.0 

102.4 

25.6 

10.2 

14.2

3,363.0

Peak discharge (base, 25 sec. -ft.).- Oct.

a No gage-height record; discharge compute 

station near Belfair. Shifting-control met*

Mar.

11.5 

10.5 

9.5 

8.8 

8.3

7.8 

7.4 

7.1 

6.7 

6.4

6.1 

5.9 

5.6 

5.4 

5.2

5.0 

4.8 

4.7

4.4

6.5 

14.5 

17 

16.5 

15.5

14 

12

10.5 

9.5 

8.8 

8.0

Maximum

24 

13.5

19.5

47

37 

23 

17 

7.3 

14.5 

6.0 

1.5 

.4 

1.0

37

Apr.

7.3 

7.0 

6.8 

6.6 

6.5

6.5 

6.4 6.L' 

6.5 

6.8

6.8

B'.B

6.6 

6.6

 6.5 

6.5 

6.3 

6.0 

5.8

5.6 

5.6 

5.5 

5.6 

5.9

5.8 

5.8 

5.6 

5.6 

5.5

May

5.4 

5.4 

6.5 

7.3 

8.4

11.5

13.5 

14 

13

12.5

11.5 

11.5 

13 

14 

14.5

14.5 

13.5 

12.5 

11 

10.5

9.5 

8.6 

7.9 

7.4 

6.9

6.4 

6.0 

6.6 

6.8 

6.6 

6.3

June

6.0 

5.7 

5.4

4.9

4.7 

4.5 

4.2 

4.0 

3.7

3.7 

3.7 

3.6 

3.5 

3.3

3.1 

3.0 

2.9 

2.8 

2.8

2.7 

2.6 

2.4 

2.3 

2.2

2.1

2.0 

1.9 

al.8 

al.7

July

al.5 

al.4 

al.3 

al.2 

al.l

al.O 

al.O 

al.O 

al.O 

al.O

a. 9 

a. 9 

a. 9 

a. 9 

.9

.8 

.8 

.7 

.7 

.7

.6 

.6 

.6 

.6 

.6

.5 

.5 

.5 

.5 

.5 

.4

Per 

Minimum Mean square 

mile

0 5.70 3.00 

3.3 6.57 3.46 

3.0 8.79 4.63

0 5.06 2.66

3.6 15.7 8.26 

2.8 11.0 5.79 

4.4 8.66 4.56 

5.5 6.26 3.29 

5.4 9.77 5.14 

1.7 3.41 1.79 

.4 .83 .437 

.3 .33 .174 

.2 .47 .247

0 6.46 3.40

20 (3 a.m.) 25 sec. -ft.; Jan. 2 (2 p. 

d on basis of recorded range in stage 

od used Jan. 16 to Feb. 15.

Aug.

0.4 

.4 

.4 

.3 

.3

.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.4

.4 

.4

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.4 

.3

Sept.

0.3 

.3 

.3 

.3 

.3

.3

.3 

.2 

.2 

.2

.2

.2 

.2 

.2 

.6

.6 

.6 

.6 

.5 

.5

.6 

.6 

.6 

.6 

.5

.6 

.8 

1.0 

1.0

1.0

Runoff

Inches

3.46 

3.86 

5.33

36.15

9.54 

6.22 

5.26 

3.68 

5.93 

2.00 

.50 

.20 

.28

46.26

Acre-feet

350 

391 

540

3,660

966 

630 

533 

372 

601 

203 

51 

20 

28

4.680

m.) 38 sec. -ft. 

and records for
58 MISSION CREEK BASIM

Mission Creek near Belfair, Wash.

Location.- Water-stage recorder, lat. 47°29'20", long. 122°51'40", in NW^ sec. 18, T. 23 

IT. , K. 1 W. , 3 miles northwest of Belfair and 5 miles upstream from mouth.

Drainage area . - 4.4 square miles

Records available.- October 1945 to Septemb 1948.

Extremes . - Maximum discharge during year, 96 second-feet Jan. 2 (gage height, 3.71 feet); 

minimum , 0.1 second-foot Oct. 6, 7.

1945-48: Maximum discharge, 140 second-feet Feb. 14, 1947 (gage height, 4.30 feet); 

minimum, .1 second-foot July 16-24, Aug. 31 to Sect. 4, Oct. 6, 7. 1947.

Remarks ._- Records good except those for periods of no gage-height record or shifting 

control, which are fair. No known diversion. No regulation.

Discharge, in second-feet, water year October 1947 to September 1?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.

0.5

.8

.4

.3

.3

.2

.2

.2

.3

.3

.3

.2

.2

.2

.8

.6

1.5

4.5

59

52

40

32

28

23

20

17.5

15.5

15

13.5

14

19

Nov.

28

31

29

26

23

20

18.5

16.5

15

13.5

12

11

10.5

9.8

9.8

8.7

8.5

7.8

7.3

6.8

6.3

5.6

5.3

5.0

4.6

4.3

4.2

3.8

3.5

3.9

Dec.

4.4

4.2

4.2

3.5

3.1

3.0

2.9

2.6

2.4

2.6

2.9

2.7

5.5

6.6

6.5

8.4

13.5

23

31

29

28

26

35

46

42

37

37

35

31

28

31

Jan.

64

91

74

63

52

50

51

48

43

46

42

37

33

29

25

22

20

17.5

16

14.5

13

12

11

10

9.1

8.2

7.8

7.2

6.8

6.3

6.1

Month

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

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

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

Calendar year 1947 . . ......

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

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

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

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

Un May v ...... ............. ......

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

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

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

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

Water year 1947-48. . . ......

Feb.

5.8

5.3

5.2

4.9

4.3

3.6

4.2

8.9

9.8

8.7

8.0

7.8

7.5

10

18.5

23

39

43

39

36

41

45

39

34

32

32

29

26

23

-

Secondfoot-days

360.3

359.2

538-0

3,419.9

935.5

593 .5

484.8

328.9

546.2

127.2

28.2

18.4

16.9

4,337.1

Mar.

22

19.5

17

15.5

14

13

12.5

11.5

11

10

9.6

9.1

8.5

8.2

7.7

7.5

6.8

7.3

6.6

6.0

18.0

42

35

30

27

24

21

19

17

15

13.5

Maximum

59

31

46

133

91

45

42

13

27

9.0

1.3

.8

1.1

91

Apr.

12.5

12.5

12

11.5

11.5

11.5

11.5

11

12

13

12.5

12.5

12

11.5

11.5

11

11.5

10.5

10

9.8

9.6

9.6

9.3

10

11

10

9.8

9.6

9.3

8.9

-

May

8.5

8.7

13.5

15.5

16.5

24

26

25

22

22

20

21

24

27

27

26

24

22

20

18.5

16.5

15

13.5

12.5

12

11

10.5

11

12

11

10

Minimum

0.2

3.5

2.4

.1

6.1

3.6

6.0

8.9

8.5

1.3

* 8

.5

.4

.2

June

9.0

8.5

8.0

7.5

7.0

6.5

6.0

5.5

5.0

5.0

5.0

4.7

4.3

4.0

3.9

3.8

3.6

3.4

3.0

3.2

3.1

2.7

2.5

2.2

2.1

1.9

1.7

1.4

1.4

1.3

-

Mean

11.6

12.0

17.4

9.37

30.2

20.5

15.6

11.0

17.6

4.24

.91

.'5659

11.8

July

1.3

1.1

1.1

1.1

1.1

1.1

1.0

1.1

.9

.9

.9

.9

.9

.9

.8

.8

.8

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

Per 

square 

mile

2.64

2.73

3.95

2.13

6.86

4.66

3.55

2.50

4.00

.964

.207

.13£

. 128

2.68

Aug.

0.8

.8

.7

.7

.6

.6

.6

,6

.6

.6

.6

,6

.6

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

,6

.5

.6

.5

Sept.

0.5

.6

.6

.6

,5

.5

.5

.5

.4

.4

.5

.5

.5

.6

1.1

.6

.5

.4

.4

.5

.6

.6

.6

.5

.5

.8

.7

.8

.6

.5

-

Runoff

Inches

3.O5

3.04

4.55

28.93

7.91

5.02

4.10

2.78

4.62

1.08

.24

.16

.14

36.69

Acre-feet

715

712

1,070

6,780

1,860

1,180

962

652

1,080

252

56

36

34

8,610
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. 

a4 rj., R. 1 W. , 1-j miles downstream from Tahuya Lake and 10 miles west of Eremerton.

Drainage area.- 6.1 square miles.

Records available.- May 1945 to September 1948.

Extremes.- Maximum discharge during year, 248 second-feet Oct. 19 (gage height, 3.94 

feet); minimum, 0.2 second-foot Oct. 1.

1945-48: Maximum discharge, 314 second-feet Feb. 14, 1947 (gage height, 4.04 feet) 

minimum, 0.1 second-foot Sept. 22-26, 1947.

Remarks.- Records good except those below 5 second-feet, which are fair, and those for 

periods of no gage-height record, which are poor. Small diversions for domestic use. 

No regulation.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1-16)

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

i.6 0.9 1.9 10 2.4 50 1.57 0.4 1.9 7.7 2.7 

1.7 2.8 2.0 16 2.7 88 1.6 .6 2.0 13 3.0 

1.8 5.8 2.2 30 3.0 131 1.7 1.9 2.2 28 3.3 

1.8 4.3 2.4 49 3.7

Discharge, in second feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

2.0 

.9 

.7 

.5

.4 

.4 

.5 

1.1 

.9

1.1 

.8 

.8 

.7 

4.7

11 

48 

110 

212 

110

65 

45 

37

28 

23

20 

16 

17 

18

41

Nov.

81 

81 

SI 

46 

37

31 

27 

24 

21 

18

15 

11 

8.6 

13 

18

13 

10 

8.1 

7.3 

7.3

7.3 

6.5 

6.5 

6.5 

6.5

6.9 

6.5 

6.2 

5.5 

6.9

Dec.

8.1 

7.7 

7.7 

6.9 

6.5

6.2 

a6.0 

a5.8 

a5.8 

a6.0

a6.5 

7.7 

17 

26

27

32 

56 

10U 

94 

68

55 

47 

65

87 

73

59 

55 

53 

46 

41 

44

Jan.

102 

158 

107 

91 

74

74 

78 

77 

67 

73

72 

60 

49 

40

33

28 

22 

20 

17 

15

13 

11 

11 

10 

9.1

8.6 

8.6 

8.1 

8.1 

9.1 

8.1

Feb.

12 

11 

7.7 

8.1 

7.7

6.9

7.3 

19 

22 

19

17 

16 

14 

22 

68

76 

129 

125 

83 

61

68 

78 

63 

49 

42

44

38 

33 

30

ii«_ii. SecondMonth foot-days

Octc 

Nove 

Dace

Ca

Janu 

Febt 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber . . .............. .... i

lendar year 194 

ary . ... 1

1 . .

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

838.7 

603.6 

,125.9

,363.8

,361.7 

,176.7 

747.4 

636 

990 

235.3 

72.6 

35.3 

70.0

ter year 1947-48. ......... 7,893.2

Mar.

29 

24 

22 

18 

17

16 

14 

13 

13 

11

11 

10 

9.1 

9.1 

8.1

7.7 

7.3 

9.1 

7.7 

7.3

47

121 

78 

54 

45

34

28 

24 

22 

15 

16

Maximum

212 

81 

100

275

158

121 

46 

67 

16 

4.3 

3.5

212

Apr.

14 

15 

15 

16 

17

20 

18 

18 

27 

45

46 

35 

30 

25 

22

22 

19 

18 

17

15

13 

14 

14 

16

23 

22 

21 

19

18

May

16 

16 

33 

40 

44

67 

60 

47 

39 

35

29

30 

44

56 

53

46 

42

36 

28 

26

24 

21 

18 

16 

14

14

13 

20

22 

22 

19

June

16 

15 

14 

14

13

11 

10 

9.1 

7.7 

6.9

8.1 

7.7 

6.9 

7.7 

7.3

6.9

6.5 

6.2 

5.5 

6.5

6.5 

5.8 

5.5 

6.2 

5.2

4.9 

4.6 

4.3

3.8 

3.5

P 

Minimum Mean sqi 

m

July

3.5 

3.0 

3.2 

3.5 

3.0

3.8 

3.0 

4.3 

3.8 

2.8

2.5 

3.0 

2.5 

3.0 

1.8

1.4 

1.3 

1.3 

1.3 

2.5

3.0 

1.8 

1.8 

1.3 

1.2

1.2

1.3 

1.2 

1.9 

2.1 

1.3

86 

125 

164 

216

Aug.

1.2 

1.2 

1.0 

1.2 

1.2

1.4 

1.2 

1.0 

1.0 

.9

.8 

.4 

.4 

.4 

.8

1.9 

1.6 

2.3 

.9 

.5

.5 

.4 

.4 

.5 

.5

.5 

.6 

2.5 

3.5 

2.8 

1.8

Sept.

0.6 

.6 

.6 

.6 

.5

.5

.6 

.6 

1.9 

1.9

1.4 

1.2 

1.4 

1.3 

4.3

2.5 

2.3 

2.3 

3.0 

3.8

3.5 

3.2 

3.0 

2.8 

2.5

3.5 

4.6 

5.2 

5.2 

4.6

er Runoff

l e Inches

0.2 27.1 4.44 5.11 

5.5 20.1 3.30 3.68 

5.8 36.3 5.95 6.86

.1 17.4 2.85 38.79

8.1 43.9 7.20 8.30 

6.9 40.6 6.66 7.17 

7.3 24.1 3.95 4.56 

13 21.2 3.48 3.88 

13 31.9 5.23 6.04 

3.5 7.84 1.29 1.43 

1.2 2.34 .384 .44 

.4 1.14 .187 .22

.2 21.6 3.54 48.12

Peak discharge (base, 130 sec. -ft.).- Oct. 19 (5 a.m.) 248 sec. -ft.; Jan. 2 (12:30 a.m.

Acre-feet

1,660 

1,200 

2,230

12,610

2,700 

2,330 

1,480 

1,260 

1,960 

467 

144 

70 

139

15,640

) 177 sec.-

ft.; Feb. 17 (11:45 p.m.) 147 sec.-ft.: Mar. 22 (6 a.m.) 135 sec.-ft.

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

nearby stations.
TAHUYA RIVER BASIN

Tahuya River near Belfair, Wash.

Location.- Water-stage recorder, lat. 47°29 I 40", long. 122°54'20", in SE^SE^ sec. 10, T. 

21OT~ R. 2 W., 3=r miles downstream from Panther Creek and 5 miles northwest of Belfair.

Drainage area.- 16.5 square miles.

Records available.- May 1945 to September 1948.

Extremes.- Maximum discharge during year, 544 second-feet Oct. 19 (gage height, 5.81 

I'eet); no flow Oct. 1.

 1945-48: Maximum discharge, 622 second-feet Feb. 14, 1947 (gage height, 6.23 feet); 

no flow at times each year.

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

Small diversions for domestic use. No regulation.

Rating tables, water year 1947-48, except periods of shifting-control 

(gage height, In feet, and discharge, In second-feet)

Dot. 1-19

1.6 0.1 2.2 17 2.8 71 

1.8 1.6 2.4 33 3.0 93 

2.0 6.9 2.6 51 3.5 154 

Note.- Same as following table above 

3.5 feet.

Oct. 20 to Sept. 30

1.8

1.9

2.0

2.1

2.2

0.3 

1.3 

3.8 

7.2

2.4 

2.6 

2.9 

3.2 

3.6

112

168

4.0 

4.5 

5.0 

5.5

227

308

395

487

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

.4

.3

.2

.2

.1

.1

.2

.2

.2

.3

.3

.4

.4

.9

16.5

77

224

473

261

161

125

106

83

ei

50

43

44

48

62

122

Nov.

171

164

148

120

96

77

59

47

42

35

31

26

23

20

28

26

23

21

19

16.5

16.5

16

15.5

15

15

13.5

13

12.5

11.5

12.5

-

Dec.

16.5

16

15.5

15

13.5

13

12.5

12.5

12

11.5

15

15

28

69

66

69

126

202

204

160

141

133

167

212

169

151

144

146

127

111

118

Jan.

278

402

267

227

178

184

191

186

165

179

179

160

139

120

102

83

65

51

45

37

33

29

27

26

24

21

19.5

18

17.5

18

18

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

17.5

20

18

16.5

16.5

14

14

28

51

46

37

34

32

47

41

44

267

275

182

154

168

185

162

141

129

133

120

104

85

-

Secondfoot-days

1 , 960. 7

1,333.5

2,711

13,803

3,489

2 , 581 . 5

1,807

1,335

2,424

64!s

13.4

53.0

18,171.2

Mar.

82

65

52

47

42

37

33

28

27

26

23

23

21

19.5

19

17.5

16.5

17

16.5

16

69

278

179

1FO

126

103

81

63

50

44

36

Maximum

473

171

212

563

402

275

103

164"^

4.4

.6

7.2

473

Apr.

32

29

29

32

34

36

49

47

52

77

103

83

65

52

45

44

42

37

35

32

28

28

28

32

51

52

48

43

37

33

-

May

29

28

67

113

115

164

151

134

112

99

82

77

113

151

140

122

107

96

76

58

49

43

36

32

28

26

24

36

43

38

35

Minimum

0

11.5

11.5

0

17.

14

16

28

24

4.7

.5

.4

.4

0

June

29

27

25

23

22

19.5

17.5

16.5

14

13

13.5

15

13.5

13

12

11

10.5

10

9.0

9.5

10

9.5

8.6

8.6

8.1

7.6

6.4

6.0

5.3

4.7

-

Mean

63.2

44.4

87.5

37.8

113

58 '. 3

44.5

is'.s

2.09

.43

1.77

49.6

July

4.4

3.E

3.f 3.e

3.6

4.1

4.1

3.2

3.5

3.2

2.7

2.1

2.1

2.1

2.1

1.7

1.3

1.3

1.1

1.1

1.1

1.4

1.4

1.1

.9

.9

.8

.7

.7

.6

.5

Per 

square 

mile

3.83

2.69

5.30

2 ' 29

6 . 85

5 . 39

3^53

2.70

4.74

. 806

.127

!l07

3.01

Aug.

0.

Sept.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.9

3.8

2.1

1.3

.9

.8

1.4

2.4

2.4

1.9

1.3

2.1

6.4

6.8

7.2

5.6

-

Runoff

Imhes Ac re- feet

4.42 3,890

3.01 2,640

6.11 5,380

31.11 27,370

7.86 6,920

5.82 5,120

4.07 3,580

3.01 2,650

5.46 4,810

.90 790

 15 129

.' 03 27

.12 105

40.96 36,040

Peak discharge (base, 500 see.-ft.).- Oct. 19 (3 a.m.) 544 see.-ft.; Jan. 2 (1 a.m.) 468 sec.-ft.; 

sb. 18 (2 a.m.) 300 sec.-ft.; Mar. 22 (7 a.m.) 300 sec.-ft. 

Note.- Shifting-control method used Oct. "2-16, Oct. 22 to Dec
TAHUYA RIV3R BASIN 

Gold Creek near Bremerton, Wash.

63.

Location.- Water-stage recorder, lat. 47°33'20", long. 122°48'30", In NE^SW-j sec. 21, T. 

24 N., R. 1 W. , about 1 mile upstream from mouth and 7 miles west of Bremerton.

Drainage area.- 1.5 square miles.

Records available.- October 194S to September 1948.

Extremes.- Maximum discharge during year, ^23 second-feet Oct. 18 (gage height, 2.95 

reet); minimum, 0.5 second-feet Sept. 22.

1945-48: Maximum discharge, that of Oct. 18, 1947; minimum, 0.3 second-foot Oct. 2, 

1945 (gage height, 0.75 foot).

Discharge, in second- feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

2.3 

1.2 

1.0 

.8

.8 

.8 

1.0 

1.2 

1.2

1.2 

1.0 

1.1 

1.0 

6.6

7.4 

27 

49 

58 

20

12 

9.8 

8.9 

6.8 

6.3

6.0 

5.7 

6.0 

5.7 

7.1 

12

Nov.

22 

18 

13 

10 

8.9

7.7 

6.8 

6.3 

5.7 

5.5

5.0 

4.5 

4.5 

4.5 

5.0

4.5 

4.7 

4.2 

4.2 

4.0

4.0 

3.8 

3.8 

3.8 

3.8

4.0 

3.8 

3.6 

3.6 

4.5

Dec.

a4.5 

. a4.0 

a4.0 

a3.5 

a3.5

a3.4 

a3.4 

a3.2 

3.2 

4.0

3.8 

3.6 

7.4 

8.6 

8.6

11 

16 

26 

18 

13

11 

9.8 

17 

22

16

12 

13 

12 

10 

9.5 

12

Jan.

39 

37 

22 

20 

16

17 

18 

17 

14 

17

17 

13 

11 

8.9 

8.3

7.4 

6.5 

6.0 

5.5 

5.0

4.7 

4.5 

4.2 

4.2 

4.0

3.8 

3.6 

3.6 

3.4 

3.4 

3.4

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

her .......................

lendar year 1947 

ary

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

ter year!947-48 ..........

Feb.

3.4 

3.2 

3.4 

3.2

3.0 

3.2 

7.7 

6.5 

5.7

5.5 

4.7 

4.7 

8.4 

19

19 

37 

27 

16 

13

15 

18 

14 

11 

10

10 

9.5 

8.9 

8.0

Secondfoot-days

269.7 

187.7 

297.0

1,959.4

348.4 

301.4 

214.0 

179.2 

238.2 

92.8 

36.7 

32.0 

35.5

2,232.6

Mar.

6.5 

6.0 

5.7 

5.5

5.0 

4.7 

4.7 

4.2 

4.0

3.8 

3.8 

3.6 

3.6 

3.4

3.4 

3.4 

3.6 

3.4 

3.2

19 

32 

16 

11 

9.8

8.0 

6.8 

6.3 

5.7 

5.2 

5.0

Maximum

58 

22 

26

72

39 

3T 

32 

9.8 

16 

4.7 

1.5 

1.2 

3.2

58

Apr.

4.7

5.0 

5.0

6.3 

6.5 

6.5 

8.9 

9.8

9.5 

8.6 

7.7 

6.5 

6.3

6.0 

5.7 

5.5 

5.0 

4.5

4.2 

4.5 

4.2 

5.E 

5.7

6.0 

5.7 

5.5 

5.5 

5.0

May

4.2

9.5 

11

16 

14

10 

8.6 

8.0

6.5

7.7 

10

12 

12

12 

8.9 

7.4 

6.3 

6.0

5.5 

5.0 

5.0 

4.7 

4.2

4.0 

3.8 

6.5 

5.7 

5.2 

4.7

Minimum

0.8 

3.6 

3.2

.5

3.4 

3.0 

3.2 

4.2 

3.8 

1.6 

1.0 

1.0 

.7

.7

June

4.7

4.2 

4.0

4.0 

3.6 

3.4 

3.0 

2.8

3.8 

3.4 

3.8 

3.4 

3.0

3.0 

3.0 

2.8 

2.8 

3.0

2.8 

2.7 

2.5 

2.4 

2.2

2.1 

2.1 

2.0 

1.8

1.6

Mean

8.70 

6.26 

9.58

5.37

11.2 

10.4 

6.90 

5.97 

7.68 

3.09 

1.18 

1.03 

1.18

6.10

July

1.5 

1.3

1.4 

1.3

1.5 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.1 

1.2 

1.1

1.1 

1.0 

1.0 

1.0 

1.0

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.2 

1.1 

1.1 

1.0

Per 

square 

mile

5.80 

4.17 

6.39

3.58

7.47 

6.93 

4.60 

3.98 

5.12 

2.06 

.787 

.687 

.787

4.07

Aug.

1.0 

1.0

1.0 

1.0

1.2 

1.1 

1.0 

1.0 

1.0

1.0

1.0

1.1 

1.1

1.2

1.2 

1.1 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

Sept.

0.8 

.9 

.9 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.7 

.7 

1.0 

3.2

1.5 

1.3 

1.3 

2.6 

1.1

.7 

.7 

.8 

1.0 

.8

1.6 

2.0 

2.2 

1.8 

1.5

Runoff

Inches

6.69 

4.65 

7.36

48.57

8.64 

7.47 

5.31 

4.44 

5.91 

2.30 

.91 

.79 

.88

55.35

Acre feet

535 

372 

589

3,890

691 

598 

424 

355 

472 

184 

73 

63 

70

4,430

a No gage-height record; discharge computed on basis of records for Union River near Eel'fair.

Panther Lake near Bremerton, Wash.

Location.- Staff gage, lat. 47°31', long. 122°51', In NEijNW^ sec. 6, T. 23 !>\,"R. 1 W., 

on south shore of lake, 9 miles southwest of Bremerton. Datum of gage If 490.0 feet 

above mean sea level, datum of 1929 (Corps of Engineers bench mark). Cafe heights 

have been converted to elevations above mean sea level.

Records available.- March 1945 to September 1948 (fragmentary).

Extremes.- 1945-48: Maximum water surface elevation observed, 499.10 feet Dec. 29, 1945; 

minimum observed, 496.37 feet Aug. 24, 1945.

Remarks.- Gage read occasionally. No diversion or regulation.

Elevation, in feet, 1947-48

Oct.

Dec.

Jan.

Feb.

Mar.

10

12

8

17

30

496

497

498

497

497

44

34

12

96

61

May

June

July

Aug.

Sept

5

18

Ib

19

30

497

497

497

496

496

68

00

04

79

8b
b2 TAHUYA RIVER BASIN

Panther Creek near Bremerton, Wash.

Location.- Water-stage recorder, lat. 47°31'40", long. 122°52'00", in NW£ sec. 31, T. 24 

N., R. 1 W., half a mile downstream from Panther Lake and 11 miles west of Bremerton.

Drainage area.- 1.0 square mile.

Records available.- June 1945 to September 1948.

Extremes.- Maximum discharge during year, 43 second-feet Oct. 18 ("age height, 1.98 feet); 

no flow at times.

1945-48: Maximum discharge, 43 second-feet Feb. 14, Oct. 18, 1947; maximum gage 

height, J.14 feet Feb. 14, 1947; no flow at times each vear.

Remarks.- Records good except those below 0.5 second-foot, which are fair. No diversion. 

Natural regulation by Panther Lake.

Discharge, in second-feet, water year Octoberl947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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

.1 .1 

.1 .1

1.1

6.0 

13.5 

18 

10.5

8.2 

7.3 

7.0 

5.7 

5.0

4.3 

3.9 

4.1 

3.9 

4.5 

7.3

Nov.

10.5 

8.8 

7.3 

6.8 

5.7

4.7 

4.3 

4.1 

3.3 

3.2

2.7 

2.5 

2.4 

2.2

2.1 

2.0 

1.8 

1.7

1.6

1.4 

1.2 

1.1

1.1 

1.0

.9 

.9

.8 

.8 

.8

Dec.

1.1 

1.1 

1.1 

1.0 

.9

.8 

.8 

.8 

.7 

.8

.8 

.8 

2.1 

2.8

3.3 

6.0 

11 

9.5 

8.2

7.9 

7.6

11.5 

13 

10.5

8.8 

9.5 

9.1 

7.9 

6.5 

7.9

Jan.

23 

23 

17.5 

16 

14

14 

14 

12.5 

10.5 

12.5

10.5 

8.8 

7.3 

6.5

4.7

4.1 

3.7 

3.3 

2.8

2.5 

2.4 

2.2

2.1 

2.0

1.7 

1.5 

1.4 

1.3 

1.3 

1.3

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber ............... .......

lendar year 194" 

ary ...

st ........ . . . . ... .......

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

ter year 1947-48 ..........

Feb.

1.2 

1.1 

1.1 

1.1 

1.0

.9

.9 

2.4 

3.5

3.0

2.5 

2.4 

2.2 

3.5

7.9 

12.5

11 

9.1 

8.2

10.5 

11 

9.1 

7.6 

7.0

7.0 

6.5 

5.7 

5.0

Secondfoot-days

111.1 

90.1 

156.2

940.6

234.1 

152.8 

112.7 

74.9 

143.2 

27.3 

2.6 

0 

.?

1,105.1

Mar.

4.5 

3.9 

3.5 

3.2 

2.8

2.5 

2.5 

2.4 

2.2

2.1

2.0 

1.8 

1.6 

1.5

1.3 

1.2 

1.3 

1.2 

1.1

7.5 

13 

8.8 

7.6 

6.8

6.0 

5.0 

4.3 

3.7 

3.2 

2.8

Maximum

18 

10.5 

13

38

23 

12.5 

13 

3.5 

8.4 

2.4 

.2 

0 

.1

23

Apr.

2.5 

2.4 

2.2 

2.4 

2.4

2.5 

2.8 

2.5 

2.8 

3.5

3.3 

3.2 

2.8 

2.5

2.4 

2.5 

2.5 

2.2 

2.1

2.0

2.1 

2.1 

2.4 

3.2

2.8 

2.5

2.1 

2.0 

1.8

May

1.7 

1.7 

4.5 

5.0 

5.2

8.4 

7.3 

6.5 

6.0 

5.4

5.0 

5.2 

7.6 

8.4

6.5 

6.2 

5.4 

4.5

4.1

3.7 

3.2 

2.8 

2.5 

2.4

2.2 

2.1 

3.2 

3.3 

3.2 

2.7

Minimum

0 

.8 

.7

0

1.3 

.9 

1.1 

1.8 

1.7 

.2 

0 

0 

0

o

June

2.4 

2.1

2.1

1.8 

1.7

1.5 

1.4 

1.3 

1.1 

P

.9

1.0 

1.0 

.9 

.8

.6 

.6 

.6 

.5 

.5

.5 

.5 

.4 

.4 

.4

.4 

.3 

.3 

.2 

.2

Mean

3.58 

3.00 

5.04

2.58

7.55 

5.27 

3.64 

2.50 

4.62 

.91 

.08 

0 

.01

3.02

July

0.2

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

0

0 

0

.1

0 

0 

0

Per

square 

mile

3.58 

3.00 

5.04

2.58

7.55 

5.27 

3.64 

2.50 

4.62 

.91 

.08 

0 

.01

3.02

Aug. Sept.

0 

0

O 

0 

0

0 

0

0 

0 

o

0 

0 

0 

0 

0

0 

0

0 

0 

0

0

o

0 

0

0

0 

0 

0 

0

.1 .1

Runoff

Inches Acre-feet

4.13 220 

3.35 179 

5.81 310

34.97 1,870

8.71 464 

5.68 303 

4.19 224 

2.79 149 

5.33 284 

1.02 54 

.10 5.2 

0 0 

.OJ. .4

41.12 2,190

Peak discharge (base, 20 sec.-ft.).- Oct. 18 (10 p.m.) 43 see.-ft.; Jan. 1 (3 p.m.) 35 see.-ft.
DEWATTO CREEK BASIN 63 

Dewatto Creek near Dewatto, Wash.

Location.- Water-stage recorder, lat. 47°28'10", long. 123°01'30", in sec. L3, T. 23 N., 

R. 3 W., l|- miles upstream from mouth and 2 miles northeast of Dewatto.

Drainage area.- 17.6 square miles.

Records available.- July 1947 to September 1948.

Extremes.- Maximum discharge during year, 660 second-feet Oct. 19 (gage height, 4.70 

reet); minimum, 13 second-feet Oct. 1.

1947-48: Maximum discharge, that of Oct. 19, 1947; minimum, 11 second-feet Sept. 

15, 1947 (gage height, 1.62 feet).

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

No Known diversion or regulation.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet)

'1.7 15

1.9 28

2.1 44

2.3' 64

2.5 88

2.8 133

3.1 189

3.4 255

3.8 357

1.6 12

1.8 24

2.0 41

2.2 62

2.4 87

2.6 115

2.8 146

3.1 200

3.? 286

4.C 420

4.S 580

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

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 

36 

22 

16 

16

14 

13.5 

14.5 

22 

19

20 

17 

16 

16 

46

76 

149 

334 

521 

239

140 

98 

90 

72 

60

54 

49 

63 

64 

80 

156

Nov.

228 

167 

126

100

80

68 

60 

53 

48 

45

40 

37 

36 

36 

41

36 

36 

33 

31 

30

29 

28 

28 

27 

26

25 

24 

24 

24 

26

Dec.

30 

28 

28 

25 

24

24 

24 

24 

23

25

29 

26 

55 

72 

59

72 

128 

292 

261 

163

133 

127 

236 

291 

190

136 

136 

135 

116 

101 

115

Jan.

358 

430 

256 

233 

177

190 

210 

200 

161 

208

212 

153 

121 

104 

93

83 

74 

68 

63 

60

55 

53 

51 

49 

46

44 

43 

42 

41 

41 

41

Feb.

41 

50 

41 

36 

38

36 

36

5C 

75 

62

56 

52 

50 

80 

70

80 

250 

300 

210 

122

168 

204 

154 

121 

111

115 

104 

93 

83

Month Secondfoot-days

Octo 

Hove 

Dece

Ca

Jami 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 194 

ary

7 ......

3

h ......................... 2

........................... 2

st ........................

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

,546.0 

,592 

,128

-

,960 

,888 

,147 

,868 

,606 

997 

654.5 

570.0 

636.5

ter year 1947-48 .......... 23,593.0

Peak discharge (base, 350 sec. -ft.).- Oct

ft.; Dec. 23 (12 p.m.) 350 sec. -ft.; Jan. 1 

Note.- Ho gage-height record Jan. 28 to Pe

Mar.

79 

70 

64 

61 

58

56 

55 

53 

50 

47

46 

45 

43 

42

40

39 

38 

42 

38 

37

123 

268 

160 

114 

90

82 

72 

66 

60 

56 

53

Maximum

521 

228 

292

-

430 

300 

268 

90 

158 

48 

27 

23 

51

521

Apr.

50 

50 

51 

54 

56

68 

77 

68 

74 

82

74 

68 

64 

60 

56

58 

59 

59 

53 

51

51 

56 

56 

64 

90

78 

68 

61 

58 

54

May

51 

49 

97 

104 

104

153 

127 

105 

91 

82

74 

79 

115 

158 

146

116 

102 

88 

79 

70

63 

60 

56 

51 

49

47 

47 

72 

62 

58 

51

June

%

Minimum Mean

13 82.1 

24 53.1 

23 101

-

41 128 

36 99.6 

37 69.3 

50 62.3 

47 84.1 

24 33.2 

17 21.1 

16 18.4 

15.5 21.2

13 64.5

48 

45 

44 

42 

40

37 

36 

34 

33 

31

36 

36 

37 

36 

32

31 

32

31 

30 

31

31 

30 

30 

28 

28

28 

27 

25 

24 

24

P 

sqi 

m

July

24 

23 

23 

24 

24

27 

25 

24 

23 

22

22 

21 

21 

21 

21

20 

19.5 

20 

22 

31

21 

19.5 

20 

19.5 

18.5

18 

18.5 

18.5 

18.5 

18 

17

Aug.

17 

17.5 

17.5 

18 

18.5

20 

19.5 

18 

18 

18.5

18 

18 

18 

17.5 

23

22 

21 

19.5

18.5 

18

18 

18 

17.5 

18.5 

18

16 

17.5 

18 

17.5 

18 

17

Sept.

17 

17 

18 

17.5

17.5

16 

16 

15.5 

15.5 

15.5

15.5 

16 

15.5 

18.5 

51

28 

21 

18.5 

17.5 

17

21 

23 

22 

18.5 

18

28 

37 

32 

29 

24

er Runoff

L l e Inches

4.66 5.38 

3.02 3.36 

5.74 6.ei

-

7.27 8.37 

5.66 6.10 

3.94 4.E4 

3.54 3.S5 

4.78 5.51 

1.89 2.11 

1.20 1.38 

1.05 1.20 

1.20 1.34

3.66 49.65

. 19 (5 a.m.) 660 sec. -ft.; Dec. 18 (7 p.m.) 

(11:30 p.m.) 600 sec. -ft. 

b. 19; discharge computed on basis of recorde

Acre-feet

5,050 

3,160 

6,200

-

7,850 

5,730 

4,260 

3,710 

5,170 

1,980 

1,300 

1,130 

1,260

46,800

363 sec.- 

d range in

stage and records for Union River near Bremerton and Tahuya River near Belfair.
64 DOGFISH CREEK BASIN

Dogfish Creek near Poulsbo, Wash.

Location.- Water-stage recorder, lat. 47°45 1 10", long. 122°38 1 30", in SWi s-sc. 11, T. 26 

-N., R. IE., half a mile upstream from mouth and 1 mile north of Poulsbo.

Records available.- July 1947 to September 1948.

Extremes.- Maximum discharge during year, 93 second-fe'et Jan.l (gage height, 4.42 feet); 

minimum, 2.8. second-feet Oct. 1.

1947-48: Maximum discharge, that of Jan. 1, 1948; minimum, 1.8 second-feet Aug. 13, 

1947 (gage height, 0.64 foot).

Revisions.- The maximum discharge for the period July to September 1P47 has been 

revised to 875 second-feet Sept. 7, 1947 (gage height, 1.25 feet), superseding figure 

published in Watfir-Supply Paper 1092.

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

Small diversion above station for irrigation. No regulation.

Rating tables, water year 1947-46, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

0.8 3.0 1.7 16.5 3.0 47 0.7 2.8 

1.0 5.0 2.0 23 3.5 62 .8 3.5 

1.2 7.7 2.3 30 .9 4.4 

1.4 11 2.6. 37 1.0 5.5

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.0 

4.1 

3.5 

3.4 

3.5

3.3 

3.3 

3.6 

4.4 

4.3

4.3

3.7 

4.0 

3.8 

14

9.5 

18 

30 

24 

9.5

6.5 

5.7 

6.2 

5.0 

4.5

4.5 

4.5 

6.0 

5.4 

8.4 

15

Nov.

17 

9.3 

7.2 

7.1 

5.7

5.4 

7.1 

6.8 

5.7 

6.6

5.6 

5.1 

5.0 

5.4 

7.0

5.6 

5.5 

9.2 

7.0 

6.6

5.5 

5.1 

4.9 

4.8 

4.8

4.9 

4.8 

4.6 

4.5 

6.4

Dec.

7.2 

5.7 

5.8 

5.2 

4.8

4.8 

6.0 

5.5 

4.8 

6.2

5.4 

5.4 

17 

10 

7.9

14 

19 

39 

19 

13

16 

14.5 

33 

26 

16

12 

16 

12.5 

10 

8.5 

20

Jan.

56 

34 

23 

21 

16

24 

32 

24 

16 

20

14 

11 

9.5 

8.5 

8.2

7.2 

7.0 

6.6 

6.5 

6.1

6.0 

8.2 

8.0 

7.0 

6.1

5.5 

5.2 

5.0 

5.8 

6.6 

6.0

Feb.

7.4 

6.2 

6.0 

7.1 

6.2

5.2 

10.5 

25 

17 

10

8.0 

7.2 

7.1 

13 

18.5

20 

38 

26 

16 

20

31 

23 

21 

14.5 

16

16 

11.5 

10 

9.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

MRU

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Peak discharge (base, 70 -sec. -ft. ) .- Oct.

Note.- ShirtlnK-control method used Dec. 7

Mar.

8.8 

8.3 

7.2 

7.0 

6.8

7.0 

7.0 

6.5 

6.0 

5.5

5.6 

5.6 

5.5 

5.2 

5.1

5.2 

5.1 

6.1 

5.7 

5.8

24 

19 

10.5 

9.5 

18

10.5 

8.5 

7.4 

7.0 

7.0 

6.4

Apr.

6.0 

7.7 

12 

9.0 

9.1

12.5 

13 

9.0 

12.5 

13

9.5 

8.0 

7.4 

6.8 

6.8

7.2 

7.1 

6.6 

6.1 

5.5

5.5 

5.8 

5.8 

11 

10.5

15 

8.7 

7.1 

6.8 

6.1

Secondfoot-days

228.9 

190.2 

390.2

-

420.0 

426.4 

252.8 

257.1 

317.3 

149.9 

114.0 

118.1 

134.0

2,998.9

May

5.5 

16 

10.5 

10.5

14 

8.3 

7.1 

6.4 

8.2

7.1 

15 

16 

12 

8.5

7.7 

6.8 

5.8 

5.4 

5.1

4.8 

4.5 

4.5 

4.4 

4.0

4.0 

7.5 

38 

34 

19 

11

Maximum

30 

17 

39

-

56 

38 

24 

15 

38 

9.9 

5.1 

4.5 

12

56

June

6.2 

5.7 

5.1 

4.6

4.1 

3.8 

3.5 

3.3 

3.1

4.6 

4.6 

6.4 

5.0 

4.2

8.0 

9.9 

5.8 

5.0 

6.1

5.7 

5.2 

4.9 

4.4 

4.4

4.2 

4.0 

3.7 

3.4 

3.3

July

3.4 

3.4 

3.4 

3.8

5.1 

4.6 

4.1 3.e 

s.e

3.E 

3.4 

3.4 

3.2 

3.Z

3.2 

3.3 

3.6 

4.2 

4.C

3.S 

3.7 

3.7 

3.E 

3.4

3.4 

4.C 

4.1

s.e

3.J 

3.4

Aug.

3.3

3.4 

3.6 

3.6

3.6 

3.5 

3.4 

3.4 

3.4

3.6 

3.6 

3.8 

4.0 

4.1

3.9 

3.8 

3.8 

4.4 

4.0

4.4 

4.4 

4.0 

4.5 

4.3

3.9 

3.9 

4.0 

3.6 

3.9 

3.6

Minimum Mi -an

3.0 7.38 

4.5 6.34 

4.8 12.6

-

5.0 13.5 

5.2 14.7 

5.1 8.15 

5.5 8.57 

4.0 10.2 

3.1 5.00 

3.2 3.68 

3.3 3.81 

3.2 4.47

3.0 8.19

18 (9:30 p.m.) 74 sec. -ft.; Jan. 1 (4:30 p.m. 

-11, June 27 to July 3.

Sept.

3.4 

3.4 

3.6 

3.4

3.4 

3.3 

3.2 

3.2 

3.2

3.3 

3.3 

3.3 

3.5 

4.1

4.6 

4.1 

3.9 

3.9 

3.7

3.9 

4.1 

4.0 

4.0 

3.8

12 

8.2 

11 

6.6 

5.2

Runoff In 

acre-feet

454 

377 

774

2,100

833 

846 

501 

510 

629 

297 

226 

234 

266

5,950

) 93 sec.-f
CHICO CREEK BASIN 65

Kitsap Lake near Bremerton, Wash.

Location.- Staff gage, lat. 47°34'40", long. 122°42'30", In SW$ sec. 8, T. 2* N., B. 1 E 

on west shore 100 feet from outlet and 2 miles west of Bremerton.

Records available.- June 1947 to September 1948 (fragmentary).

Extremes.- Maximum gage height observed during year, 1.95 feet Jan. 6; minimrm observed, 

U.9U foot July 30, Aug. 10.

1947-48: Maximum gage height observed, that of Jan. 6, 1948; minimum observed, 

0.80 foot Aug. 15, 26, 29, Sept. 2, 5, 1947.

Remarks.- Gage read twice weekly. No diversion or regulation.

Gage height, in feet, water year October 1947 to September 1946

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

.

_

0.98

_

-

_

1.05

_

1.06

.

.

-

1.06

_

1.31

_

-

1.81

_

_

1.54

-

_

_

1.32

_

.

1.34

Nor.

_

_

_

1.40

-

.

1.28

..

-

1.20

_

1.15

_

.

1.16

-

1.14

.

-

1.14

_

_

1.06

_

_

-

Dec.

.

1.12

_

1.12

.

_

-

1.12

1.19

1.14

_

-

1.32

_

1.62

-

_

1.72

_

-

1.72

_

-

_

1.68

-

Jan.

.

1.82

_

-

1.95

-

1.92

_

_

1.72

1.65

1.54

_

_

_

1.38

_

_

1.32

_

-

_

1.26

-

_

1.24

-

Feb.

_

_

1.24

-

1.22

-

_

1.46

_

_

1.42

_

-

.

1.76

1.73

1.72

_

_

_

1.72

-

.

1.65

-

_

-

Mar.

_

1.54

.

_

1.40

_

_

-

1.34

_

1.30

_

_

-

1.24

.

1.22

-

_

.

1.70

_

-

1.66

.

1.50

1.48

Apr.

.

1.48

_

-

1.40

_

1.37

_

.

1.28

-

1.31

_

_

1.28

.

1.26

-

1.30

-

1.26

May

.

_

_

1.27

_

1.36

_.

-

1.36

.

1.38

_

_

1.34

-

1.30

_

_

1.20

_

_

1.32

_

_

-

June

1.24

_

1.17

__

_

1.10

-

1.11

_

_

1.10

_

1.04

1.04

-

_

1.00

_

.99

_

_

_

.98

-

July

_

0.96

_

_

-

.97

-

1.00

_

_

.96

_

-

.96

_

_

.97

.

.

.94

_

-

.

.92

_

.90

Aug.

_

_

0.92

_

-

.92

-

_

.90

_

_

.91

-

_

.93

_

.93

_

_

_

.91

.

.92

_

_

.92

Sept.

_

_

0.94

_

-

_

.94

-

..

-

.96

_

.94

_

1.06

.

-

1.07

_

_

1.06

_

_

1.19

1.23

-
66 CHICO CREEK BASIN

Chico Creek near Bremerton, Wash.

Location.- Water-stage recoraer, lat. 47 0 35'30", long. 122°42 I 30", at nor*:n line sec. 8, 

T. «4 N., R. IE., half a mile downstream from Dickerson Creek and Zj miles northwest

of Bremerton.

Records available.- July 1947 to September 1948.

Extremes.- Maximum discharge during year, 600 second-feet Oct. 18 (gage height, 4.03 

feet); minimum, 0.9 second-foot Oct. 1 (gage height, 0.75 foot).

1947-48: Maximum discharge, that of Oct. 18, 1947; no flow Aug. 31 to Sept. 6,

1947.

Remarks.- Records good except those above 150 second-feet, which are poor. Several 

small diversions for irrigation and domestic use.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Dec. 12 to Jan. 4)

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

1.1

1.3

1.9

100

148

1.6 36 3.1

64

100

148

208

278

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

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 r 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

46 

144 

245 

95

62 

50 

45 

38 

33

E8 

25 

29 

E5 

29 

40

Nov.

73 

67 

57 

48 

40

36 

33 

29 

26 

24

21 

20 

20 

19.5

20

la

19 

18

17 

16.5

15 

14

13 13* 5 

13

13 

14.5 

14.5 

13 

14

Dec.

16 

14 

14 

13 

12.5

12 

12 

11.5 

11.5 

12.5

13 

12.5 

22

30 

27

33 

56 

88 

77 

63

58 

54 

84 

113

91

75 

76

76 

68 

60 

72

Jan.

226 

269 

189 

175 

139

139 

146 

141 

119 

144

135 

110 

87 

75

64

57

50 

45 

41 

39

36 

34 

33 

31 

29

27 

26 

24 

24 

24 

22

Feb.

24 

22 

22 

22 

22

20 

23 

59 

70 

56

48 

42 

40 

53 

110

107 

183 

156 

111 

95

117 

117 

96 

82 

74

74 

64 

59 

52

Month

Octo 

Nove 

Dece

Ca

janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

ber .....................................

lendar year 

ary

1... ....................................

ter year 1947-43 .......................

Mar.

51 

47 

43 

40 

40

38 

38 

38 

36 

34

33 

32 

30 

30 

28

27 

27 

27 

26 

24

95 

182 

107 

85 

81

66 

59 

53 

49 

45 

41

Apr.

39 

39 

33 

39 

39

41 

43 

40 

43 

52

50 

48 

46 

42 

40

39 

38 

37 

35 

34

32 

32 

32 

34 

41

39 

38 

35 

34 

31

Secondfoot-days

1,009.2 

760.5 

1,377.5

-'

2,700 

2,020 

1,552 

1,171 

1,290 

468.2 

186.5 

113.3 

157.9

12,806.1

May

30 

28 

47 

51 

49

67 

61 

53 

46 

42

40 

45 

64 

71 

59

50 

45 

40 

37 

35

32 

31 

29 

28 

25

24

24 

35 

36 

34 

32

Maximum

245 

73 

113

-

269 

183 

182 

52 

71 

30 

8.6 

4.3 

14

269

June

30 

27 

24 

22 

21

19.5 

18 

17.5 

16.5 

15

16.5 

17 

17.5 

17 

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

Minimum

1.0 

13 

11.5

-

22 

20 

24 

31 

24 

8.6 

3.7 

2.9 

1.9

1.0

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

Mean

32.6 

25.4 

44.4

-

87.1 

69.7 

50.1 

39.0 

41.6 

15.6 

6.02 

3.65 

5.26

35.0

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 

12.0

14 

12.5 

10.5

Runoff In 

acre -feet

2,000 

1,510 

2,730

-

5,360 

4,010 

3,030 

2,320 

2,560 

929 

370 

225 

313

25,400
CHICO CREEK BASIN 6 

Wildcat Lake near Bremerton, Wash.

Location.- Staff gage, lat. 47°36'00", long. 122°45'50", in SE£ sec. 2, T. 24N..R. 1W. 

on north shore 1,000 feet from outlet and 5 miles west of Bremerton.

Records available.- June 1947 to September 1948 (fragmentary).

Extremes - Maximum gage height observed during year, 5.80 feet Dec. 25, Feb. 18; minimum 

oFServed, 4.16 feet Oct. 2.

1947-48: Maximum gage height observed, that of Dec. 35, 1947, Feb. 18, 1948; 

minimum observed, 3.94 feet Aug. 27, 28, Sept. 1, 4, 1947.

Remarks.- Sage read twice weekly. No diversion or regulation.

Gage height, in feet, water year October 1947 to'September 1948

Day

1

2

3

4

8

6

7

8

9

10

11

12

IS 

14

15

16

17ia

19

20

21

22

23

24

26

26

27

28

29

30

31

Oot,

_

4.16

-

-

-

4.23

-

-

4,30

-

_

-

4.36

-

4.60

»

-

-

5.70

5.39

-

-

.

5.19

«

.

5,08

-

NOV.

.

-

5.46

-

-

5.30

-

-

-

5.03

.

-

4.87

-

.

4.78

-

-

4.74

-

4,69

-

_

4.68

_

-

.

-

Deo.

4.70

-

~

4.70

-

_

-

4.68

-

-

4.70

.

-

4.87

_

~

5.36

-

-

5.54

-

5.80

.

.

_

5.58

-

-

Jan.

5.68

-

-

-

-

_

_

_

_

-

_

-

5.62

-

_

_

_

_

-

.

-

-

4.78

.

4.72

4.70

-

Feb.

_

4.64

-

4.68

-

_

4.64

-

_

5.04

_

4.98

-

5.24

5.38

_

5.80

5.72

5.72

5.60

5.44

5.38

5.32

_

5.18

-

-

Mar.

5.08

-

4.98

-

-

4.86

_

4.83

.

4.78

_

4.72

4.72

4.70

_

4.64

-

_

4.66

5.46

5.44

-

_

5.24

5.14

5.06

_

4.94

Apr.

4.90

_

_

4.84

-

_

4.90

_

-

4.96

-

4.90

.

_

4.86

-

4.74

_

4.88

_

_

_

4.84

-

May

4.76

_

_

-

5.02

5.09

5.02

.

_

5.10

-

5.36

_

_

_

5.22

5.04

-

.

4.88

_

_

5.06

-

June

_

4.96

-

4. 98

_

_

4.96

_

5.00

-

_

4.92

_

4.96

_

4.92

_

5.00

_

_

_

-

July

4.84

_

_

4.76

_

4.78

-

4.72

-

4.66

4.67

4.64

-

4.64

4.58

.

_

_

4.56

-

Aug.

4.54

_

_

4.52

_

4.52

-

4.50

4.54

_

_

_

4.52

4.53

4.52

-

4.54

_

4.54

-

Sept.

4.54

_

4.52

_

_

4.50

4.5U

-

-

4.72

_

4.66

4.66

-

4.70

_

4.80

4.78
68 BLACKJACK CREEK BASIN

Blackjack Creek at Port Orchard, Wash.

Location.- Water-stage recorder, lat. 47°32'20", long. 122°37'50", in SE^ sec. 26, T. 24 

S., R. IE., at Port Orchard, a third of a mile upstream from mouth.

Records available.- July 1947 to September 1948.

Extremes.- Maximum discharge during year, 228 second-feet Mar. 21 (gage height, 3.11 

reet); minimum, 7.6 second-feet Aug. 10.

1947-48: Maximum discharge, that of Mar. 21, 1948; minimum, 6.7 second-feet July 

25, Sept. 2, 3, 1947 (gage height, 1.32 feet).

Remarks.- Records fair. Many small diversions above station for irrigatior.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.6 

11 

11.5 

9.8 

9.5

9.2 

8.6 

8.9 

10 

9.5

10.5 

9.2 

9.1 

9.6 " o

26 

39 

59 

102 

44

23 

16 

15.5 

12.5 

10.5

ills

10 

17.5 

28

Nov.

46 

28 

19 

15.5 

12.5

12 

10.5 

10 

9.6 

9.6

9.6 

9.1 

9.1 

9.1 

12.5

11.5 

10.5 

10 

9.1 

9.1

8.6 

8.6 

8.6 

8.1 

8.6

8.6 

8.6 

8.6 

8.1 

9.6

Dec.

17 

12 

12.5 

10 

9.1

9.1

10.5 

9.6 

9.6 

10

13.5 

10 

17 

19 

13

19 

33 

34 

30 

21

22 

26 

55 

65 

36

26 

40 

42 

28 

21 

41

Jan.

108 

111 

89 

77 

51

60 

78 

72 

46 

76

67 

39 

28 

24 

22

20 

19 

17.5 

17 

16

15.5 

16 

16 

16 

15.5

15 

14.5 

14.5 

14.5 

15 

15

Feb.

15 

16 

15 

17.5 

17.5

15.5 

15 

56 

62 

30

20 

17.5 

17.5 

21 

60

52 

105 

71 

40 

36

78 

78 

50 

34 

36

60 

38 

28 

25

Month

Oeto 

Hove 

Dece

Ca

Janui 

Pebn 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

Lendar year 1947 

iry

ter year 1947-48 ...............

Peak discharge (base, 130 sec. -ft.).- Get.

Mar. 21 (9 p.m.) 228 sec. -ft.

Mar.

26 

23 

21 

20 

20

21 

21 

21 

20 

18.S

17.5 

17.5 

17 

17 

16

17 

16 

19 

17.5 

17

98 

132 

68 

44 

49

36 

29 

26 

24 

22 

21

Apr.

22 

25 

26 

25 

30

28 

28 

24 

28 

31

28 

25 

27 

23 

23

25 

27 

25 

22 

21

21 

24 

26 

28 

36

28 

25 

23 

23 

22

Secondfoot-days

589.6 

358.3 

720.9

-

1,205 

1,126.5 

932.0 

769 

840.0 

426.0 

324.7 

287.4 

349.6

7,929.0

May

22 

22 

43 

36 

33

54 

38 

29 

28 

29

28 

30 

40 

32 

28

25 

25 

22 

21 

21

20 

19 

17.5 

17.5 

16

16 

17 

35 

33 

24 

19

Maximum

102 

46 

65

-

Ill 

105 

132 

36 

54 

18.5 

13 

10.5 

21

132

June

17.5 

16 

16 

15.5 

15

13.5 

13 

13 

12.5 

12.5

16 

15.5 

17 

15 

13.5

13 

14.5 

13.5 

13 

15. S

18.5 

15.5 

14.5 

13.5 

13.5

13 

12.5 

12 

11.5 

10.5

July

10. E 

10 

10 

10.5 

11.5

13 

13 

12.5 

11.5 

10.5

10 

10.5 

10 

9.6 

10

9.6 

10 

10.5 

11.5 

11.5

11.5 

10 

10 

10 

9.6

9.6 

10 

10.5 

9.6 

9.1 

8.6

Minimum

8.6 

8.1 

9.1

-

14.5 

15 

16 

21 

16 

10.5 

8.6 

8.1 

9.1

8.1

18 (9 p.m.) 141 sec. -ft.; Jan 1

Aug.

9.1 

8.6 

8.6 

8.6 

9.1

10.5 

9.1 

9.1 

8.6 

8.1

8.6 

8.6 

8.1 

8.6 

9.1

9.6 

9.1 

9.1 

9.1 

9.1

9.6 

9.6 

9.1 

10 

10

9.6 

9.6 

10.5 

10 

10.5 

10.5

Me-w

19.0 

11.9 

23.3

-

38.9 

38.8 

30.1 

£-5.6 

T7.1 

14.2 

10.5 

9.27 

11.7

21.7

5 p.m.

Sept.

10 

9.6 

10 

10 

10

9.6 

9.6 

9.1 

9.1 

9.1

9.1 

9.1 

9.1 

9.1 

14.5

12 

11.5 

10 

10 

9.6

10 

12.5 

13.5 

12.5 

11.5

14.5 

21 

21 

18.5 

14.5

Runoff in 

acre-feet

1,170 

711 

1,430

-

2,390 

2,230 

1,850 

1,530 

1,670 

845 

644 

570 

693

15,730

) 136 see. -ft.;
BURLEY CREEK BASIN 69

B.urley Creak at Bur ley, Wash.

Location.- Water-stage recorder, lat. 47°24'50", long. 122°37'50", in NE£ sec. 11, T. 22 

N., K. 1 E.j at Burley, a quarter of a mile upstream from mouth.

Records available. - July 1947 to September 1948.

Extremes.- Maximum discharge during year, 255 second-feet Oct. 18 (gage height, 4.09 

feet)_L minimum, 12.5 second-feet July 31 (gage height, 0.78 foot).

1947-48: Maximum discharge, that of Oct. 18, 1947; minimum, 11 second-feet July " 

19-21, 1947.

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

control, which are fair. Several small diversions for domestic use above station. 

No regulation.

Discharge, in second-feet, water year October 1947 tc Septemberl948

Day

1

2

3

4

5

6

7

8

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

22

23

18

16.5

15.5

15.5

16

19

21

19

16

17

16.5

44

38

60

93

90

36

30

27

29

24

23

22

22

25

23

38

43

Nov.

56

35

34

30

28

28

28

26

25

26

25

26

26

26

34

25

25

23

22

22

22

22

22

22

22

22

21

21

20

30

-

Dec.

34

25

26

a24

a22

a22

a22

a22

a22

a28

25

21

36

24

22

35

34

47

29

23

28

28

75

47

29

25

45

35

28

26

63

Jan.

73

60

46

50

32

47

61

45

34

76

42

30

26

25

25

23

23

22

23

22

22

23

23

22

22

21

21

21

22

22

21

Feb.

23

22

22

28

23

21

22

62

40

28

23

22

23

36

46

66

72

45

34

48

76

53

38

34

51

58

36

32

31

-

-

Month

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

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

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

Calendar ysar ......................

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

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

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

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

to... .....................................

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

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

Augumt

Septsmber. ..................................

Water -year 1947-48 ......................

liar.

33

31

29

29

29

32

32

32

29

28

28

28

27

26

26

26

25

32

26

26

128

79

35

35

45

32

29

27

25

25

25

Apr.

25

30

28

28

29

28

26

25

35

35

30

26

27

25

28

29

30

27

25

23

24

31

30

44

35

28

25

24

24

24

-

Seocndfoot-days

916

794

972

1,025

1,115

1,059

846

904

601

488.5

497

581

9,800.5

Hay

22

22

54

30

37

54

29

27

26

32

27

40

37

31

26

28

26

24

23

23

22

21

21

20

19

19

20

57

35

28

24

HaxiBun

93

56

75

76

76

128

44

57

26

21

18

56

128

June

22

22

21

21

21

20

19.5

19.5

19

19

26

24

f26

f2O

19.5

19.5

20

18.5

18

24

23

20

19

19

18.5

18

17

16

15.5

15.5

HiniBun

14

20

21

21

21

25

23

19

15.5

14.5

14.5

14

14

July

15.5

15.5

15

16.5

16.5

21

20

17.5

16

16

15.5

15.5

15.5

14.5

15

15

14.5

15.5

17

16.5

16

15.5

15

14.5

14.5

14.5

15.5

15

15

14.5

14.5

Aug.

14.5

15

15

15

15.5

17.5

16

15

15

15.5

15

15

15. S

15.5

18

17

16

15.5

15.5

16

16.5

16

16

18

17

15.5

17

17.5

16

18

16.5

Hear

29.5

26. 5

31.4

S^.l

39.4

34.2

28.3

29. 2

20.0

15.8

16.0

19.4

26.8

Sept.

15

15

16

16

15

14.5

14.5

14.5

14

14

14.5

14.5

14.5

15

28

17.5

16

15

15

15

16

23

23

17.5

16

a56

a32

41

23

20

Runoff in 

acre-fast

1,820

1,57O

1,930

2,03O

2,210

2,100

1,680

1,790

1,190

969

986

1,150

19,420

Peak discharge (base, 200 sec. -ft.).- Oct. 18 (1O p.m.) 255 sec. -ft.; Mar. 21 (7:30 p.m.) 23O

sec.-ft.

a He gage-height record; discharge cbmputed on basis of recorded range in stage anc" records fcr 

Huge Creek near Wauna.

f Computed on basis cf partly estimated gage-height record.

Mete.- Shirting-control method used Oct. 19 to Nov. 14, Nov. 21 to Dec. 22, Feb. 16 to Mar. 22, 

Nay 26 to July 7, Sept. 28-3O.
MINTER CREEK BASIN

Huge Creek near Wauna, Wash.

Location. - Water-stage recorder,-lat. 47°23'20", long. 122°41'50", at nortt line sec. 20, 

T. W N., R. IE., an eighth of a mile upstream from mouth and 2j miles west of Wauna.

Drainage area.- 5.5 square miles.

Records available.- July 1947 to September 1948.

Extremes.- Maximum discharge during year, 59 second-feet Mar. 22 (gage height, 2.14 feet); 

minimum, 4.1 second-feet July 17, 18, 21, 25, 26, 30, 31, Aug. 1, 2, 19.

1947-48: Maximum discharge, that of Mar. 22, 1948; minimum, 3.5 second-feet Sept. 

l-£, 1947 (gage height, 1.25 feet).

Remarks.- Records good. No known diversion or regulation.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 27 to Dec. 9)

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

1.2 2.6 1.3 3.6 1.7 23 

1.3 4.7 1.4 6.4 1.9 38 

1.4 7.8 1.5 11 2.1 55 

1.5 12 1.6 17 

1.6 18

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

6.2 

5.8 

5.0 

4.7

4.4 

4.2 

4.4 

4.7 

5.2

5.0 

4.4 

4.4 

4.4 

7.1

7.1 

9.8 

15 

17.5 

11.5

10 

7.8 

7.8 

6.8 

6.5

6.2 

5.5 

5.8 

5.5 

8.2 

10

Nov.

12 

10 

8.6 

7.5 

6.8

6.5 

6.2 

5.8 

5.5 

5.5

5.5 

5.2 

5.5 

5.5 

7.1

5.8 

5.8 

5.5 

5.2 

5.2

4.7 

4.7 

4.7 

4.7

4.7

4.7 

4.7 

4.7 

4.4 

5.5

Dec.

6.2 

5.2 

5.2 

4.7 

4.7

4.7 

4.7 

4.7 

4.7 

5.1

5.1 

4.6 

6.4 

5.4 

5.4

6.4 

7.9 

11 

10.5 

8.8

8.4 

8.4 

18 

22 

18

13.5 

16 

17.5 

14.5 

12 

17

Jan.

33

42 

35 

33

26

29 

33 

32 

24

32

29

22 

18 

15.5 

13

11.5 

10.5 

9.3 

8.8 

7.9

7.1 

7.1 

6.7 

6.7 

6.4

6.0 

6.0 

5.7 

6.0 

6.0 

5.7

Feb

5.7 

5.7 

5.7 

6.4 

6.0

5.4 

5.4 

13 

11.5 

9.3

8.4 

7.5 

7.1 

3.5 

16.5

18 

32 

29 

21 

21

34

35 

27 

21 

21

29 

22 

18.5 

16

Mnnth Second 

Month foot-days

Octc 

Nove 

Dece

Ca

Jam 

Febi 

Marc 

Apn 

May 

June 

Julj 

Augu 

Sepl

Wa

her

mber .....................

lendar year 

ary

215.6 

178.2 

286.7

.....

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

533.9

466.6 

434.5 

296.2 

346.0 

186.0 

141.4 

140.6 

177.1

ter year 1947-48 .......... 3,402.8

Mar.

15 

13.5 

12 

11 

10.5

11 

10.5 

10.5 

9.3 

8.4

7.9 

7.9 

7.1 

7.1 

7.1

7.5 

7.1 

8.4 

7.1 

7.1

28 

51 

33 

26 

24

20 

16.5 

15 

13 

11.5 

10.5

Maximum

17.5 

12 

22

_

42 

35 

51 

12.5 

23 

7.1 

5.1 

5.4 

7.9

51

Apr.

9.8 

11 

11 

10.5 

11

11 

9.8 

8.8 

11 

12

12.5 

10.5 

9.8 

9.3 

9.3

9.3 

10.5 

8.8 

8.4 

8.4

7.9 

8.8

a. a

11.5 

12

10.5 

9.3 

8.4 

8.4 

7.9

May

7.5

14 

11.5 

14

23 

18.5 

15.5 

12.5 

12.5

11 

13.5 

15 

13 

11.5

11.5 

11 

11 

9.8 

9.3

8.4 

7.9 

7.5 

7.5 

7.1

7.1 

7.1 

13.5 

10.5 

8.8 

7.9

June

7 .1

6.7 

6.7 

6.7

6.4 

6.0 

5.7 

5.4 

5.4

6.7 

6.7 

7.1 

6.7 

6.4

6.4 

6.4 

6.4 

6.0 

6.7

6.7 

6.4 

6.4 

6.0 

6.0

6.0 

5.7 

5.1 

4.8 

4.6

Minimum Mean

4.2 6.95 

4.4 5.94 

4.6 9.25

_

5.7 17.2 

5.4 16.1 

7.1 14.0 

7.9 9.87 

7.1 11.2 

4.6 6.20 

4.3 4.56 

4.1 4.54 

4.8 5.90

4.1 9.30

July

4.6

4.6 

4.8 

4.8

4.8 

5.1 

5.1 

5.1 

4.8

4.8 

4.6 

4.6 

4.6 

4.3

4.3 

4.3 

4.3 

4.6 

4.3

4.3 

4.3 

4.3 

4.3 

4.3

4.3 

4.8 

4.6 

4.6 

4.3 

4.3

Per 

square 

mile

1.26 

1.08 

1.68

_

3.13 

2.93 

2.55 

1.79 

2.04 

1.13 

.829 

.825 

1.07

1.69

Aug.

4.3

4.8 

4.6 

4.6

4.6 

4.6 

4.3 

4.3 

4.3

4.6 

4.3 

4.3 

4.3 

4.3

4.6 

4.3 

4.3 

4.1 

4.3

4.3 

4.3 

4.3 

4.8 

4.8

4.8 

4.8 

4.8 

4.8 

5.4 

5.4

Sept.

5.1

4.8 

5.4 

5.4

5.1 

5.1 

4.8 

5.1 

5.1

5.1 

5.4 

5.4

5.7 

6.0

5.7 

6.0 

6.4 

6.0 

6.4

6.7 

7.1 

7.9 

7.1 

7.1

6.7 

6.7 

7.9 

6.0 

5.1

Runoff

Inches

1.46 

1.20 

1.94

.

3.61 

3.16 

2.94 

2.00 

2.34 

1.26 

.96 

.95 

1.20

23.02

Acre-feet

428 

353 

569

_

1,060 

925 

862 

588 

686 

369 

280 

279 

351

6,750
DESCHUTES RIVER BASIN 7] 

Deschutes River near Olympia, Wash.

Location.- Water-stage recorder, lat. 47°00 1 40", long. 122°53'40", in NWijSE^ sec. 35, T. 

18 N., R. 2 W., l} miles upstream from mouth and 2| miles south of Olympia.

Drainage area.- 164 square miles.

Records available.- April 1945 to September 1948.

Extremes.- Maximum discharge during year, 2,950 second-feet Mar. 22 (gage height, 7.12 

reetj; minimum, 78 second-feet Oct. 1.

1945-48: Maximum discharge, 3,560 second-feet Jan. 26, 1947 (gage height, 7.95 

feet); minimum, 66 second-feet Oct. 11, 1946.

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

Small diversions above station for irrigation. No regulation.

Discharge, in second feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

78 

92 

114 

158 

133

119 

108 

102 

100 

a!23

a!58 

a200 

a!80 

166 

171

418 

520 

879 

932 

930

690 

480 

396 

345 

308

287 

272 

272 

311 

308 

422

Nov.

922 

869 

560 

442 

382

352 

355

658 

668 

540

480 

424 

389 

386 

442

622 

540 

480 

442 

417

392 

365 

342 

323 

311

302 

296 

287 

278 

278

Dec.

290 

317 

326 

333 

314

305 

293 

287 

281 

275

275 

272 

287 

505 

520

476 

638 

905 

1,560

1,000

735 

668 

622 

735 

780

668 

580 

735 

758 

668 

600

Jan.

735 

1,900 

2,240 

1,590 

1,300

1,150 

1,480 

1,730 

1,240 

1,150

1,330 

1,030 

855 

758 

668

600 

560 

520 

480 

462

434 

420 

406 

396 

382

365 

355 

342 

336 

330 

323

Feb.

317 

314 

311 

314 

302

290 

284 

330 

366 

448

396 

365 

352 

349 

517

855

1,120 

1,210 

1,030 

758

735 

1,400 1,630* 

1,000 

830

1,380 

1,520 

1,060 

830

Mnn+h SecondMonth foot-days

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 ......

ary

9,772 

13,544 

17,008

119,367

1

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

25,867 

20,613 

19,188 

15,815 

15,481 

7,366 

4,522 

3,789 

3,852

ter year 1947-48. ......... 156,817

Peak discharge (base, 2,000 sec. -ft.).- J

2,010 sec. -ft.; Mar. 22 (9:30 p.m.) 2,950 s 

a No gage-height record; discharge comput

Mar.

712 

645 

580 

540

500

470 

452 

462 

452 

431

420 

410 

392 

382 

368

365 

352 

355 

358 

352

406 

2,020 

1,890 

1,090 

905

802 

712 

645 

600 

580 

540

Maximum

932 

922 

1,560

3,060

2,240 

1,630 

2,020 

668 

1,030 

375 

171 

134 

255

2,240

Apr.

500 

520 

560 

540 

540

520 

500 

473 

480 

500

500 

480 

462 

442 

434

500 

622 

645 

600 

540

520 

520 

600 

668 

645

600 

540 

480 

456 

428

May

403 

378 

410 

712 

668

93O 

1,030 

802

645

560

500 

476 

560 

560 

540

500 

476 

459 

434 

417

400 

389 

368 

358 

345

342 

336 

382 

403 

362 

336

June

317 

302 

290 

281 

272

264 

252 

244 

235 

227

252

375 

314 

281 

261

244 

255 

238 

227 

224

238 

227 

219 

208 

202

197 

189 

181 

179 

171

Minimum Mean

78 315 

278 451 

272 549

78 327

323 834 

284 711 

352 619 

428 527 

336 499 

171 246 

127 146 

117 122 

103 128

78 428

July

169 

166 

161 

161 

161

164 

171 

169 

161 

157

152 

149 

145 

143

140

140 

138 

136 

140 

145

138 

136 

134 

132 

129

129 

134 

134 

132 

129 

127

Per 

square 

mile

1.92 

2.75 

3.35

1.99

5.09 

4.34 

3.77 

3.21 

3.04 

1.50 

.89 

.744 

.78

2.61

Aug.

125 

123 

123 

123 

125

123 

121 

119 

119 

119

117 

117 

119 

119 

125

127 

134 

127 

132 

123

121 

119 

119 

119 

123

123

121 

121 

123 

121 

119

Sept.

116 

114 

114 

114 

114

112 

110 

108 

106 

106

104 

104 

103 

104 

114

114 

116 

112 

108

106

106 

116 

134 

147 

134

136 

194 

221 

255 

210

Runoff

Inches

2.22 

3.07 

3.86

27.07

5.87 

4.67 

4.35 

3.59 

3.51 

1.67 

1.03 

.86 

.87

35.57

Acre-feet

19,380 

26,860 

33,730

236,800

51,310 

40,890 

38,060 

31,370 

30,710 

14 , 610 

8,970 

7,520 

7,640

311,000

an 3 (7 to 8 a.m.) 2,400 sec. -ft.; Feb. 22 (12 p.m.) 

ec.-ft. 

ed on basis of records for Puyallup Rive- near Orting.

939922 O - 51 - 6
72 NISQUALLY RIVER BASIN

Nisqually River near National, Wash.

Location.- Water-stage recorder, lat. 46°45'50", long. 122"05'00", In SW^SW^ sec. 29, T. 

ifa N., R. 6 E., 100 feet downstream from railroad bridge, 1 mile west of National, 2j 

miles west of Ashford, and 3 miles upstream from Mineral Creek.

Drainage area.- 133 square miles.

Records available.- May 1942 to September 1948.

Extremes.- Maximum discharge during year, 5,560 second-feet Nov. 8 (gage tnight, 8.46 

feet); minimum not determined, probably occurred in September during period of faulty 

gage-height record.

1942-48: Maximum discharge, 7,230 second-feet Dec. 11, 1946 (gage height, 10.34 

feet); minimum not determined, probably occurred during period of doubtful gageheight record Oct. 2-30, 1942.

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

ana those for periods of faulty or no gage-height record, which are poor. No 

diversion. Slight regulation at low flow by power plant of Mt. Rainier National Park 

on Paradise River.

Discharge, in second-feet, water year October 1947 to Septemberl94S

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

405 

2,000 

2,610 

1,340 

872

752 

699 

699 

780 

752

752 

725 

725 

699 

1,500

2,000 

2,400 

2,800 

3,200 

2,700

2,190 

1,600 

1,290 

1,090 

1,050

1,010 

905 

940 

840 

905 

1,090

Nov.

1,380 

1,250 

1,170 

1,090 

1,010

1,170 

3,010 

4,180 

2,300 

1,790

1,470 

1,170 

1,250 

1,090 

1,090

1,050 

1,170 

1,300 

1,250 

1,200

1,100 

1,050 

1,000 

950 

1,000

1,700 

1,500 

1,400 

1,000 

900

Dec.

940 

905 

940 

840 

840

780 

752 

725 

725 

725

699 

673 

780 

810 

780

810 

1,290

1,420 

1,250 

1,090

975 

872 

872 

975 

940

905 

940 

1,050 

975 

872 

872

Jan.

1,290 

1,740 

1,290 

1,090 

872

1,250 

2,040 

1,600 

1,170 

1,050

905 

780 

725 

673 

648

614 

590 

576 

548 

524

511 

524 

552 

567 

543

511 

502 

493 

484 

475 

454

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

ary

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

ter year 1947-48 ..........

Feb.

441 

425 

409 

405 

397

382 

375 

417 

405 

371

368 

368 

368 

405 

484

475 

f673 

f752 

648 

600

700 

1,300 

1,100 

1,000 

900

1,900 

1,300 

1,100 

1,000

Secondfoot-days

41,320 

41,990 

28,022

297,149

25,591 

19,468 

17,606 

20,258 

42,577 

47,315 

22,686 

15,267 

10,529

332,629

Mar.

930 

840 

750 

700 

650

600 

570 

550 

550 

500

490 

480 

480 

460 

450

440 

430 

450 

430 

430

600 

750 

673 

614 

581

f529 

f511 

529 

562 

543 

534

Maximum

3,200 

4,180 

1,420

4,180

2,040 

1,900 

930 

1,090 

2,790 

2,350 

1,050 

640 

493

4,180

Apr.

520 

538 

529 

493 

480

467 

445 

429 

441

441

433 

417 

401 

413 

498

810 

905 

872 

840 

872

975 

1,050 

1,050 

1,050 

1,090

940 

810 

752 

673 

624

May

600 

562 

780 

905 

1,210

2,350 

2,090 

1,560 

1,210 

1,050

940 

940 

1,010 

940 

905

940 

1,010 

975 

940 

1,010

1,290 

1,470 

1,380 

1,560 

2,090

2,520 

2,790 

2,620 

1,990 

1,470 

1,470

Minimum

405 

900 

673

299

454 

368 

430 

401 

562 

940 

580 

368 

240

240

June

1,520 

1,790 

2,090 

1,700 

1,650

1,890 

2,300 

2,350 

2,300 

2,040

2,040 

1,650 

1,560 

1,560 

1,380

1,900 

1,500 

1,250 

1,210 

1,520

1,840 

1,380 

1,170 

1,090 

1,050

975 

940 

1,130 

1,290 

1,250

Mean

1,333 

1,400 

904

814

826 

671 

563 

675 

1,373 

1,577 

732 

492 

351

909

July

1,050 

940 

872 

872 

810

950 

780 

725 

699 

750

750 

648 

624 

619 

624

648 

700 

810 

760 

725

699 

699 

699 

673 

648

620 

800 

648 

624 

580 

640

Per 

square 

mile

10.0 

10.5 

6.80

6.12

6.21 

5.05 

4.27 

5.08 

10.3 

11.9 

5.50 

3.70 

2.64

6.83

Aug.

640 

624 

600 

580 

570

600 

550 

560 

529 

520

516 

511 

502 

498 

570

475 

437 

480 

440 

390

386 

379 

371 

368 

450

405 

409 

502 

493 

467 

445

Sept.

433 

421 

470 

394 

360

330 

330 

340 

347 

360

370 

370 

370 

370 

350

320 

290 

270 

270 

260

264 

330 

290 

260 

240

267 

493 

493 

450 

417

Runoff

Inches

11.55 

11.74 

7.84

83.09

7.16 

5.44 

4.92 

5.66 

11.91 

13.23 

6.34 

4.27 

2.94

93.00

Acre-feet

81,960 

83,290 

55,580

589,400

50.760 

38,610 

34,920 

40,180 

84,450 

93,850 

45,000 

30,280 

20,880

659,800

Peak discharge (base, 4,800 sec. -ft.}.- Oct. 19 (time and discharge unknown); Nov. 8 (l a.m.)

5,560 sec.-ft.

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Oct. 16-18, 2o", Nov. 18-30, Feb. 20 to Mar. 22; discharge computed 

on basis of records for nearby streams. Faulty gage-height record Oct. 2-6, 15, 19, 21-26, Oct. 31 

to Nov. 3, Nov. 7, May 30 to June 2, June 5, 6, June 12 to Sept. 30; discharge compited on basis of 

records for nearby streams or recorded gage heights. Shifting-control method used Oct. 1 to Jan.5, 

June 11 to Sept. 30.
NISQUALLY RIVER BASIN 73

Alder Reservoir at Alder, Wash.

Location.- Water-stage recorder, lat. 46°48'05", long. 122°18'30", in NW£ sec. 9, T. 15 

n., K. 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 1948.

Extremes.- Maximum contents during year, 211,740 acre-feet Aug. 3 (gage height, 1.200.31 

leet); minimum observed, 126,200 acre-feet Apr. 15 (gage height. 1., 165.30 feet)

1944-48: Maximum contents, 214,090 acre-feet Dec. 14, 1946 (gage height, 1,201.12 

feet): minimum observed (since reservoir first filled), 115,350 acre-feet Nov. 14 

1945 (gage height, 1,159.82 feet).

Remarks.- Reservoir is formed by concrete arch dam; storage began Nov. 7, 1944; dam comPleted in 1945. Capacity, 158,700 acre-feet between gage heights, 1,114 feet (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 Taooma from project surveys and maps)

1,100 40,200

1,110 48,420

1,120 58,070

1,130 69,350

1,140

1,150

1,160

1,170

82,540

97,910

115,690

135.800

1,180 158,260

1,190 183,270

1,200 210,840

Gage height at 12 p.m., in feet, water year October 1947 to September 1948

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

186.83

187.84

169.59

190.41

190.88

190.72

190.46

190.20

190.20

190.18

190.33

190.43

190.33

190.22

191.05

192.46

194,72

196.82

197.99

197.80

197.19

195.97

195.63

196.16

196.85

197.49

197.70

198.01

197.90

197.64

197.54

Nov.

197.98

197.58

196.62

196.40

196.53

196.76

198.12

198.72

197.82

196.74

196.63

197.43

197.97

197.36

196.87

196.62

196.23

195.81

195.93

196.12

195.88

195.55

195.28

194.97

194.93

195.32

195.81

195.92

196.01

196.39

-

Dec.

196.31

195.87

195.58

195.38

195.16

195.29

195.59

195.31

195.18

194.79

194.53

194.09

194.50

195.33

195.36

195.65

197.39

197.52

197.24

197.65

198 . 02

198.33

197.58

197.38

197 . 54

197.40

197.52

197.42

196.54

196.30

196.50

Jem.

197.87

197.63

196 . 06

195.79

196.84

197.95

198.96

198.21

197.09

196.38

195.99

196.42

196.72

196.80

196.68

196.47

196.26

196.30

195.98

195.64

195.39

195.26

195.24

195.40

195.85

195.56

195.17

194.88

194.46

193.99

193.52

Feb.

193.29

192.67

191.96

191.17

190.38

189.40

188.71

188.33

187.63

186.85

186.05

185.25

184.09

184.09

184.39

184.49

185.48

186.79

187.04

187.08

188.03

190.94

192.08

192.42

193.10

195.28

195.12

194.01

193.49

-

-

Mar.

193.45

193.20

192.72

192.16

191.58

190.90

190.33

189.58

188.80

187.89

186.89

185.92

184.93

183.87

182.84

181.74

180.59

179.47

178.22

176.97

177.32

179.51

179.80

179.57

179.34

178.95

178.41

177.95

177.58

177.00

176.39

Apr.

175.76

175.09

174.56

174.01

173.29

172.51

171.63

170.78

169.99

169.24

168.52

167.66

166.80

165.90

165.36

166.12

167.46

168.91

169.66

170.65

171.91

173.36

174.95

176.79

178.69

179.48

180. 21

180.54

180.96

181.24

-

May

181.66

182.21

183.22

184.41

185.88

189.02

191.33

192.77

193.81

193.49

192.44

191.48

190.71

189.91

191.10

192.33

192.00

192.03

191.91

191.94

192.39

193.94

195.23

195.12

195.79

196.17

195.18

194.07

195.35

196.11

193.88

June

190.51

189.44

188.83

188.43

189.95

191.68

192.92

194.21

194.98

195.35

195.54

195.83

197.15

196.42

195.83

195.49

195.07

194.30

195.24

196 36

196.38

196.69

196.92

197.15

197.43

197.82

198.46

198.74

199.22

199.84

-

July

199.94

199,58

199.68

199.88

199.80

199.90

199.82

199.51

190.17

198.98

199.04

198.81

198.63

198.62

198,72

198.87

199.10

199.44

199.43

199.52

199.36

199.39

199.38

199.34

199.49

199.43

199.51

199.54

199.50

199.51

199.73

Aug.

200.17

200.14

200. 10

200.01

199.85

199.76

199.73

199.98

199.76

199.77

199.57

199.54

199.43

199.67

199.92

199.57

199.38

199.22

199.09

198.83

198.59

198.70

198.50

198.25

198.16

198.09

198.02

198.28

198.49

198.43

198.22

Sept.

198.11

198.03

198. 06

198.01

198.01

198.08

197.87

197.78

197.61

197.51

197.43

197.60

197.30

197.13

197.03

196.81

196.09

195.91

195.80

195.43

195.11

195.17

195.11

194.92

194.68

194.69

195.10

195.43

195.54

195.53

-

Note.- Add 1,000.00 feet to obtain gage height

Monthly gage height and contents, water year October 1947 to September 1948

Date

Calendar year 1947...

Sept. 30. ... ............

Water year 1947-48. . .

Gage height 

(feet)t

-

1,195.5

-

Contents 

(acre-feet)

-

197,780

-

Change in conterts 

during month 

(acre-feet)

+37,670

+32 290

-7,: 380

+21,150

t Gage height and contents at 12 p-.m.
74 NISQUALLT RIVER BASIN

Nisqually River at La Grande, Wash.

Location.- Water-stage recorder, lat. 46°50 I 30", long. 122°19'40", in SE£ sec. 29, T. 16 

N., H. 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 Riv^r.

Drainage area.- 296 square miles.

Kecoras available.- December 1943 to September 1948. September 1906 to October 191.1

(fragmentary), October 1919 to September 1931 at site about 3 miles upstream, published 

as Nisqually River near La Grande.

Average discharge.- 19 years (1906-8, 1909-10, 1919-31, 1944-48), 1,324 second-feet (adJusted).

Extremes.- Maximum discharge during year, 8,360 second-feet Jan. 2 (.gage height, 6.66 

reet); minimum, 26 second-feet July 1 (gage height, 1.21 feet); minimum daily, 170 

second-feet J«ne 6.

1919-31, 1943-48: 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.. Flow regulated by city of Tacoma power plant at La Grande beginning in February 1945 and by Alder Reservoir beginning in November 1944 (see p. 73). 

La Grande Reservoir, lat. 46°49'20", long. 122°18 I 10", in SE£ sec. 31, T. 16 N., R. 4 

E., 1 mile southeast of La Grande, completed in 1944; usable storage, 1,050 acre-feet 

between elevation 910 feet (minimum practical head) and 935 feet (normal reservoir 

level). All diversions returned to river above gage. Water used for pover.

Revisions.- W 492: Drainage area.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,270 

720 

788 

486 

432

910 

964 

1,020 

744 

760

540 

464 

712 

710 

718

861 

760 

1,640 

5,000 

5,330

4,280 

4,050 

2,470 

880 

470

445 

958 

870 

1,240 

1,900 

2,640

Nov.

2,880 

3,440 

3,540 

2,060 

1,460

1,440 

2,340 

5,730 

5,150 

4,450

2,920 

1,200 

1,800 

3,210 

3,470

2,720 

3,070 

3,120 

2,140 

1,630

1,950 

1,910 

1,750 

1,640 

1,330

1,390 

945 

1,260 

1,070 

920

Month

Octo 

Nova 

Deoe

Cal

Janu 

Febr 

Marc 

Apri 

Hay

June 

July 

Augu 

Sept

Wat

endar year 1947

St. .............

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

er year 1947-48

Dec.

1,510 

1,970 

1,950 

1,510 

1,480

940 

664 

1,310 

1,070 

1,350

1,230 

1,370 

868 

488 

1,300

1,320 

930 

3,210 

3,710 

1,830

1,670 

1,450 

2,860 

2,780 

1,960

2,040 

1,990 

2,610 

3,360 

2,150 

1,760

Jan.

2,700 

6,490 

5,940 

3,760 

1,420

2,320 

4,840 

5,520 

4,600 

4,020

3,000 

1,460 

1,460 

1,570 

1,670

1,630 

1,620 

1,340 

1,630 

1,590

1,490 

1,360 

1,350 

1,100 

672

1,540 

1,580 

1,490 

1,580 

1,590 

1,570

Feb.

1,270 

1,710 

1,750 

1,700 

1,820

1,960 

1,660 

1,480 

1,810 

1,770

1,640 

1,700 

1,670 

1,590 

1,400

1,540 

1,570 

1,740 

1,920 

1,870

1,310 

1,480 

1,850 

2,130 

2,120

3,110 

4,580 

4,560 

3,210

Mar.

2,100 

2,160 

2,160 

2,160 

2,130

2,120 

2,070 

2,120 

2,120 

2,180

2,240 

2,200 

2,160 

1,950 

2,020

2,060 

2,070 

2,130 

2,130 

2,130

1,940 

1,850 

1,890 

1,950 

1,840

1,730 

1,700 

1,700 

1,770 

1,850 

1,820

Observed

Discharge in 

second-feet

Maximum

5,330 

5,730 

3,710

5,730

6,490 

4,580 

2,240 

1,820 

4,840 

5,840 

1,680 

1,000 

1,220

6,490

Minimum

432 

920 

488

364

672 

1,270 

1,700 

558 

430 

170 

616 

360 

237

170

Mean

1,453 

2,398 

1,763

1,292

2,384 

1,997 

2,015 

1,339 

1,973 

1,606 

1,047 

771 

689

1,619

Runoff 

in 

acre-feet

89,320 

142,700 

108,400

935,400

146,600 

114,900 

123,900 

79,650 

121,300 

95,560 

64,390 

47,400 

41,020

1,175,000

Apr.

1,820 

1,770 

1,810 

1,660 

1,780

1,740 

1,770 

1,710 

1,730 

1,710

1,600 

1,620 

1,640 

1,620 

1,590

1,410 

950 

632 

1,150 

950

900 

910 

961 

664 

558

1,350 

1,050 

1,230 

961 

910

May

752 

502 

1,120 

1,120 

1,270

1,670 

1,660 

1,480 

1,330 

2,400

3,110 

3,170 

3,190 

3,040 

744

430 

2,420 

1,850 

1,950 

1,850

1,680 

600 

593 

2,290 

2,040

2,680 

4,530 

4,840 

1,340 

1,250 

4,250

Change in

17i Alder and 

Xa Grande 

"Reservoirs 

(acre-feet)

+26,870 

-3,360 

+440

+37,760

-8,450 

-40 

-42,420 

+11,170 

+32,010 

+17,300 

-280 

-4,330 

-7,880

+21,030

June

5,840 

3,270 

3,040 

2,400 

301

170 

1,410 

1,180 

1,630 

1,750

2,360 

1,730 

537 

2,680 

2,290

2,200 

2,070 

2,280 

370 

395

1,070 

1,400 

1,330 

1,230 

1,020

870 

537 

1,100 

983 

736

July Aug.

1,300 

1,680 

1,040 

920 

805

1,270 

1,290 

1,370 

1,370 

1,240

910 

1,220 

1,180 

961 

832

841 

796 

616 

1,190 

972

1,280 

1,050 

1,120 

983 

656

1,050 

1,050 

972 

983 

860 

656

360 

961 

920 

994 

972

841 

616 

430 

983 

880

841 

778 

900 

370 

380

950 

870 

796 

760 

880

930 

430 

890 

1,000 

940

850 

805 

395 

488 

805 

880

Sept.

778 

688 

640 

593 

467

365 

704 

688 

860 

752

972 

237 

870 

832 

624

648 

1,220 

648 

370 

841

870 

460 

544 

640 

696

712 

693 

696 

769 

805

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-feet

116,200 

139,300 

108,800

973,200

138,200 

114,900 

81, 480 

90,820 

153,300 

112,900 

64,110 

43,070 

33,140

1,196,000

Discharge in 

second-feet

Per 

Mean square 

mile

1,83~> 6.39 

2,341 7.91 

1,763 5.98

1,344 4.54

2,243 7.59 

1,993 6.75 

1,325 4.48 

1,523 5.16 

2,49? 8.42 

1,897 6.41 

1,043 3.52 

700 2.36 

557 1.88

1,647 5.56

Runoff

inches

7.36 

8.82 

6.89

61.65

8.75 

7.28 

5.16 

5.75 

9.71 

7.15 

4.06 

2.73 

2.10

75.76
NISQUALLY RIVER BASIN 75 

Nisqually River near McKenna, Wash.

Location.- Water-stage recorder, lat. 46°51'15",' long. 122°S7'10", in SEij se?. 20, T. 16 

w., K. 3 E., 800 feet downstream from Elbow Creek, three-quarters of a mile upstream from 

Tanwax Creek, and 7.4 miles southeast of MeKenna. 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 1948.

Extremes.- Maximum discharge during year, 10,300 second-feet Jan. 2 (gage height, 9.31 feet); 

minimum, 157 second-feet Sept. 19 (gage height, 3.02 feet); minimum daily, 336 secondfeet June 6.

1941-48: 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 plait at La 

Grande.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet)

Oct. 1 to Nov. 7

542

686

838

1,090

5.5 

6.0

1,630

2,330

3,230

4,250

Note.- Same as following 

table above 7 feet.

3.4 312

3.6 410

3.8 518

4.0 635

4.3 835

Nov. 8 to Sept. 3O

4.6 1,060

5.0 1,420

5.5 1,950

6.0 2,570

6.5 3,310

7.0 4,250

7.5 5,340

8.0 6,550

8.8 8,750

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,470 

1,090 

1,170 

722 

587

1,110 

1,180 

1,200 

958 

970

729 

570 

929 

887 

958

1,450 

1,570 

2,380 

6,440 

7,300

5,570 

5,000 

3,360 

1,380 

778

721 

1,240 

1,130 

1,560 

2,140 

3,330

Nov.

4,130 

4,310 

4,460 

2,710 

1,930

2,070 

4,650 

8,640 

6,820 

6,020

3,880 

2,140 

2,370 

3,760 

4,290

3,650 

3,780 

3,820 

2,910 

2,350

2,540 

2,430 

3,230 

2,130 

1,790

1,850 

1,530 

1,700 

1,580 

1,430

Dec.

3,090 

2,560 

2,600 

3,200 

2,070

1,530 

1,250 

1,800 

1,600 

1,830

1,740 

1,860 

1,560

1,550 

2,170

2,180 

2,620 

4,770 

5,380 

2,950

2,550 

2,350 

3,330 

3,720 

2,720

2,740 

2,700 

3,410 

4,390 

2,940 

2,340

Jan.

3,550 

8,510 

7,290 

5,410 

3,360

3,570 

6,860 

6,840 

5,820 

4,830

4,160 

2,110 

2,010 

2,020 

2,080

2,030 

1,980 

1,640 

1,870 

1,860

1,710 

1,560 

1,540 

1,360 

945

1,680 

1,730 

1,650 

1,690 

1,690 

1,620

Feb.

1,380 

1,710 

1,780 

1,840 

1,880

2,060 

1,760 

1,720 

2,040 

1,960

1,810 

1,830 

1,800 

1,790 

1,990

2,010 

2,330 

2,470 

2,570 

2,400

1,870 

2,990 

3,830 

2,790 

3,040

5,240 

5,800 

5,390 

4,070

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ber. .................................. .

mber. ...................................

lendar year 1947

uary. ...................................

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

ter year 1947-48 .......................

Mar.

2,560 

3,590 

2,490 

2,420 

2,380

2,350 

2,320 

2,420 

2,450 

2,450

2,500 

2,460 

2,450 

2,370 

2,290

2,280 

2,300 

2,360 

2,380 

2,370

2,350 

3,600 

2,900 

" 2,710 

2,680

2,400 

2,390 

2,380 

2,370 

2,420 

2,400

Apr.

2,320 

3,370 

2,460 

2,250 

3,360

2,290 

2,220 

2,200 

2,220 

3,210

2,140 

2,130 

2,170 

2,120 

2,160

2,360 

1,980 

1,610 

1,880 

1,610

1,540 

1,590 

1,550 

1,250 

1,350

1,960 

1,570 

1,660 

1,430 

1,340

Secondfoot-days

59,579 

97,800 

79,500

632,677

93,

76, 

58, 

82, 

60, 

31, 

25, 

24,

975 

050 

790 

300 

055 

8E3 

707 

344 

210

763,063

May

1,130 

856 

1,650 

1,920 

2,070

3,380 

3,150 

2,670 

2,270 

3,240

3,980 

4,020 

3,940 

3,780 

1,300

796 

3,180 

2,350 

2,400 

2,230

1,870 

992 

851 

2,960

2,510

3,320 

4,720 

5,620 

1,920 

1,700 

5,280

Maximum

7,200 

8,640 

5,380

8,640

8,510 

5,800 

3,600 

3,460 

5,620 

7,270 

1,920 

1,140 

1,340

8,640

June

7,270 

4,100 

3,690 

2,690 

750

336 

1,410 

1,330 

1,770 

2,050

2,970 

2,140 

973 

3,280 

2,730

2,700 

2,580 

2,500 

868 

506

2,650 

1,860 

1,680- 

1,580 

1,280

1,120 

769

1,240 

1,140 

891

July

1,320 

1,920 

1,120 

982

816

1,360 

1,420 

1,500 

1,460 

1,310

919 

1,190 

1,140 

866 

770

743 

660 

584 

1,090 

916

1,160 

1,010 

991 

850 

590

868 

910 

870 

848 

835 

689

Minimum

570 

1,430 

1,530

314

945 

1,380 

2,280 

1,250 

796 

336 

584 

405 

372

336

Aug.

405 

890 

972 

1,000 

991

876 

691 

448 

972 

886

858 

755 

875 

410 

408

956 

888 

859 

768 

899

888 

526 

866 

1,050 

1,140

992 

871 

590 

636 

918 

960

Me*n

1,922

3,260 

2,565

1,733

3,031 

2,519 

2,477 

1,943 

2,647 

2,028 

1,023 

814 

807

2,085

Sept.

830 

754 

712 

658 

524

398 

750 

762 

880 

837

951 

392 

848 

833 

694

674 

1,340 

751 

372 

932

928 

516 

668 

709 

772

845 

1,180 

1,240 

1,300 

1,160

Runoff In 

acre-feet

118,200 

194,000 

157,700

1,255,000

186,400 

144,900 

152,300 

115,600 

162,800 

120,700 

62,890 

50,070 

48,020

1,514,000
NISQUALLY RIVER BASIN

Location.- Water 

 IV N. , R. 2 E

Nisqually River at McKenna, Wash.

-stage recorder, lat. 46°56'05", long. 122°33'40", In 

., 8j miles downstream from Tanwax Creek at McKenna.

sec. 28, T.

Drainage area.- 514 square miles.

Records available.- October 1947 to September 1948.

Extremes . - Maximum discharge during period October 1947 to September 1948, 11,500 second- 

 i'ee"t Jan. 2 (gage height, 8.18 feet); minimum, 42 second-feet Sept. 19 (gage height, 

0.98 foot).

Remarks . - Records good. Major portion of flow regulated by Alder Reservoir and city of 

Tacoma power plant at LaGrande. Yelm irrigation project and Centralia power canal 

divert water above station.

Rating table, Oct. 25, 1947, to Sept. 3O, 1948 (gage height, in feet, 

and discharge, in second-feet)

1.5 110 2.5 550 4.0 2,1OO 6.0 5,180 

1.7 161 2.8 775 4.5 2,790 6.5 6,280 

1.9 232 3.1 1.05O 5.0 3,530 7.O 7,630 

2.2 370 3.5 1,480 5.5 4,31O 7.5 9,170

Discharge, In second-feet, water year October 1947 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

496

398 

796 

713 

1,130 

1,550 

2,940

Nov.

3,450 

3,890 

3,910 

2,470 

1,610

1,730 

3., 830 

8,96O 

6,790 

5,780

3,73O 

1,820 

1,740 

3,430 

3,910

3,560 

3,450 

3,550 

2,740 

1,770

2,160 

2,020 

1,81O 

1,680 

1,310

1,310 

1,120 

1,120 

1,060 

912

Dec.

1,510 

2,150 

2,200 

1,830 

1,590

1,110 

756 

1,160 

1,170 

1,280

1,270 

1,270 

1,09O 

1,120 

1,580

1,670 

2,110 

3,950 

5,520 

2,710

2,260 

2,090 

2.50O 

3,530 

2,340

2,350 

2,270 

2,910 

4,000 

2,660 

1,950

Jan.

2,610 

9,170 

7,630 

6,050 

2,350

3,020 

7,060 

7,060 

5,980 

4,790

4,19O 

2,080 

1,880 

1,770 

1,880

1,790 

1,720 

1,440 

1,500 

1,580

1,380 

1,140 

1,200 

984 

658

1,210 

1,380 

1,290 

1,300 

1,370 

1,220

Feb.

1,100

1,200 

1,43O 

1,480 

1,510

1,700 

1,380 

1,320 

1,690 

1,620

1,480 

1,520 

1,440 

1,450 

1,680

1,800 

2,O80 

2,240 

2,380 

2,180

1,570 

2,710 

2,730 

2,710 

2,760

5,150 

6,040 

5,480 

4,270

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Tt

ber 25-3]

lendar year 1947 

ary

St.... ..................................

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

le period ............. .......... .......

Mar.

2,560 

2,540 

2,410 

2,300 

2,250

2,190 

2,120 

2,240 

2,280 

2,250

2,300 

2,260 

2,250 

2,160 

2,070

2,050 

2,070 

2,150 

2,160 

2.170

2,14O 

3,610 

2,920 

2,660 

2,630

2,360 

2,230 

2,230 

2,230 

2,250 

2,190

Apr.

2,100 

2,160 

2,330 

2,1OO 

2,140

2,070 

2.O50 

1,940 

1,940 

1,950

1,870 

1,850 

1,880 

1,820 

1,830

£,110 

1,680 

1,420 

1,490 

1,320

1,180 

1,260 

1,300 

905 

1,040

1,540 

1,270 

1,330 

1,120 

1,000

Seoondfoot-days

8,023 

86,622 

65,906

r

88,682 

66,100 

72.23O 

49,995 

72,893 

55,617 

21,276 

15,280 

13,472

-

May

796 

560

1,180 

1,560 

1,660

3,080 

2,970 

2,430 

2,050 

2,790

2,670 

3,630 

3,670 

3,620 

1,440

584 

2,760 

2,170 

2,140 

2,030

1,550 

1,010 

593 

2,280 

2,180

2,840 

4,190 

5,870 

2,870 

1,680 

4,040

Maximum

2,940 

8,96O 

5,520

-

9,170 

6,040 

3,610 

2,330 

5,870 

7,060 

1,600 

857 

900

-

June

7,060 

3,970 

3,400 

2,440 

962

169 

952 

1,360 

1,700 

2,OOO

2,690 

2,350 

1,320 

2,970 

2,720

2,630 

2,470 

2,300 

963 

210

2,240 

1,550 

1,400 

1,250 

994

812 

548 

842 

791

554

July

848 

1,600 

842 

761

530

977 

1,060 

1,130 

1,050 

986

677 

853 

8OO 

558 

454

414 

314 

334 

671 

606

759 

679 

641 

520 

377

475 

545 

514 

487 

460 

354

Aug.

250 

446 

568 

669 

602

569 

354 

284 

560 

528

534 

441 

523 

190 

164

575 

538 

536 

455 

485

538 

416 

476 

638 

857

656 

518 

408 

365 

546 

591

Minimum Me^n

398 1,1«6 

912 2,887 

756 2,126

-

658 2,861 

1,100 2,279 

2,050 2,330 

905 1,666 

560 2,351 

169 1,854 

314 686 

164 493 

128 449

-

Sept.

408 

418 

376 

333 

343

182 

283 

428 

437 

468

550 

299 

365 

442 

364

337 

804 

537 

128 

459

555 ' 

286 

266 

291 

388

510 

738 

828 

9OO 

749

Runoff In 

acre-feet

15,910 

171,800 

130,700

318,400

175,900 

131,100 

143,300 

99,160 

144,600 

110,300 

42,200 

30,310 

26,720

1,222,000
NISQUALLY RIVER BASIN

Mineral Creek near Mineral, Wash.

Location.- Water-stage recorder^ lat. 46°44'20", long. 122°08'20", in SW£ sec. 35, T. 15 

N., R. 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 1948.

Extremes.- Maximum discharge during year, 2,640 secondrfeet Jan. 1 (gage height, 5.91 

feet); minimum, 45 second-feet Sept. 21.

1942-48: Maximum discharge, 5,240 second-feet Dec. 11, 1946 (gage height, 8.25 

feet), from rating curve extender! above 2,700 second-feet; minimum, 23 second-feet 

Sept. 10-13, 1944.

Remarks.- Records good. No diversion or regulation.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

1.6 46 2.6 261 4.5 1.36O 

1.8 68 3.0 405 5.O 1,780 

2.0 104 3.5 670 5.5 2,240 

2.3 174 4.0 1,000

Discharge, in second feet, water year October 1947 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.

50 

164 

348 

236 

182

147 

126 

126 

169 

154

159 

135 

126 

115 

371

670 

1,090 

1,320 

1,960 

1,440

1,000 

696 

590 

462 

397

37O 

326 

366 

322 

397 

620

Nov.

1,000 

806 

651 

544 

482

458 

925 

1,520 

1,000 

806

651 

533 

601 

528 

690

696 

690 

664 

572 

501

435 

382 

344 

318 

298

294 

281 

264 

252 

249

Dec.

274 

249 

271 

249 

249

261 

252 

230 

224 

204

204 

196 

319 

389 

340

378 

858 

1,000 

930 

709

578 

512 

528 

748 

657

555 

578 

696 

595 

501 

528

Jan.

1,39O 

2,050 

1,280 

1,070 

806

1,230 

2,000 

1.4OO 

1,000 

898

728 

566 

491 

435 

389

355 

329 

308 

294 

278

264 

268 

281. 

287 

271

255 

239 

230 

224 

213 

201

Feb.

193 

179 

174 

172 

162

149 

152 

201 

193

172

156 

152 

149 

227 

477

456 

865 

1,040 

670 

512

668 

1,740 

1,140 

794 

832

1,820 

1,280 

930 

702

 «>> SecondMonth foot-days

Octo

Nove 

Decs

Ca

Janu 

Fsbi 

Hare 

Apr! 

Hay 

June 

Julj 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

ary

1

1 .........................

smber .....................

14,634 

17,435 

14,262

24,167

20 > 030 

16,357 

12,252 

14,532 

21,564 

8,629 

2,896 

1,863 

2,227

tsr year 1947-46 .......... 146,681

Mar.

584 

496 

422 

378 

344

326 

308 

298 

287 

264

255 

239 

242 

233 

218

210 

201 

210 

2O4 

196

660 

1,470 

748 

555 

491

414 

389 

401 

422 

409 

378

Maximum

1,960 

1,520 

1,OOO

2,990

2,050 

1,820 

1,470 

858 

1,620 

453 

144 

76 

224

2.O5O

Apr.

359 

374 

382 

348 

329

308 

298 

278 

294 

322

315 

301 

278 

278 

351

645 

670 

657 

601 

6O1

670 

735 

800 

846 

858

716 

584 

501 

444 

389

May

362 

333 

625 

794 

865

1,620 

1,360 

1,040 

832 

722

632 

632 

676 

670 

620

613 

620 

590 

538 

522

595 

632 

572 

584 

702

742 

722 

748 

638 

501 

462

Minimum

50 

249 

196

41

201 

149 

196 

278 

333 

142 

63 

54 

46

46

June

453 

431 

444 

389 

351

348 

355 

344 

312 

271

405 

326 

351 

291 

261

304 

281 

252 

230 

258

260 

246 

230 

213 

201

188 

174 

164 

154 

142

Mean

472 

581 

46O

340

646 

564 

395 

484 

696 

288 

93.4 

60.1 

74.2

401

194S

July

135 

128 

124 

119 

117

135 

144 

126 

113 

106

100 

98 

94 

86 

81

79 

74 

74 

88 

82

74 

73 

71 

70 

67

65 

88 

84 

71 

67 

63

Per 

square 

mile

6.29 

7.75 

6.13

4.53

8.61 

7.52 

5.27 

6.45 

9.28 

3.84 

1.25 

.80] 

.98£

5.35

Al'g.

62 

59 

59 

59 

58

60 

60 

56 

55 

55

55 

55 

55 

59 

76

71 

65 

60 

58 

55

54 

55 

54 

63 

74

62 

59 

71 

62 

59 

58

Sept.

55 

55 

68 

62 

56

55 

54 

53 

52 

50

50 

49 

47 

48 

55

54 

51 

49 

47 

46

47 

54 

84 

68 

60

115 

224 

198 

177 

144

Runoff

Inches

7.26 

8.6f 

7.O7

61.58

9.93 

8.11 

6.08 

7.21 

10.69 

4.28 

1.4* .9?' 

1.10

72.7*

Acre-feet

29,030 

34,580 

28,290

246,300

39,730 

32,440 

24,300 

28,820 

42,770 

17,120 

5,740 

3.70O 

4,420

290, 9OO

Peak discharge (base, 2,700 sec.-ft.).- No peak above base.
78 NISQUALLY RIVER BASIN

Mashel River near La Grande, Wash.

Location.- Water-stage recorder, lat. 46°51'27", long. 122°18'12", in NE-f 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 1948.

Extremes.- Maximum discharge during year, 3,800 second-feet Nov. 7 (gage height, 7.14 

feet); minimum, 16.5 second-feet Oct. 1; minimum gage height, 1.58 feet Sept. 21.

1940-48: 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. Small diversion for city of Eatonville water supply. Some 

regulation by millpond in Eatonville.

Rating tables, water year 1947^-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Mar. 21 Mar. 22 to Sept. 50

1.9 

2.1 

2.3 

2.5 

2,8

15

28

55

94

171

3.1 

3.5 

4.0 

4.5 

5.0

261

396

621

903

1,250

5.5 

6.0 

6.5

1,710

2,290

2,950

1.6 

1.8 

2.0 

2.2 

2.4 98

2.7 

3.0

3.3 

3.6 

4.0

152

224

311

407

550

4.5 

5.0 

5.5

770

1,050

1,370

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

17

30

122

66

60

46

38

36

40

40

38

32

32

33

135

323

495

551

f757

f785

532

329

230

191

120

115

94

117

103

209

423

Nov.

873

536

400

296

261

439

2,740

2,180

964

843

637

482

707

596

757

648

611

590

473

382

300

242

203

168

160

242

239

206

174

186

-

Dec.

389

343

423

316

255

212

200

174

154

130

154

154

350

621

504

486

1,420

1,290

996

648

482

392

353

452

367

333

364

606

495

367

350

Jan.

996

1,760

1,030

964

680

1,210

2,110

1,210

757

707

580

435

350

319

277

249

227

215

194

171

160

174

218

249

209

165

133

115

106

99

81

on

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

77

64

54

54

43

26

43

130

154

110

64

64

64

133

513

378

669

757

500

374

621

1,510

903

621

1,050

2,230

1,170

757

536

_

-

Second 

foot-days

6,139

17,535

13,780

OO, 3O J

16,150

13 , 669

9 144

10, 216

13,083 

5,783

1, 824

2,677

111,967

Mar.

423

353

280

233

206

215

212

249

258

200

171

154

160

140

117

110

99

106

115

103

502

1,210

610

458

458

377

336

342

358

314

275

Maximum

785

2,740

1,420

"4. , o /u

2,110

2 230

1^210

675

1 , 260 

458

142

144

458

2,740

Apr.

246

305

348

284

269

246

221

193

201

230

227

201

181

179

252

652

675

590

458

407

407

441

424

424

550

424

339

302

296

244

-

May

235

221

568

630

698

1,260

960

720

570

494

407

407

441

394

323

308

317

308

266

255

264

261

224

224

275

278

266

531

441

305

232

Minimum

17

160

130

13

81

26

99

179

221

79 

42

42

37

17

June

206

188

191

156

130

127

130

127

111

95

284

216

293

203

148

232

246

191

150

305

458

368

281

221

181

148

125

103

90

79

-

Mean

198

584

445

230

521

471

295

341

422

193

63. 5

58. 8

89.2

306

July

69

73

59

57

58

142

123

112

83

73

59

52

54

52

48

4S

44

44

64

67

59

53

49

48

44

42

65

65

55

52

49

Per

square 

mile

2 51

7 . 59

5.65

2.91

6

s IK

3^73

4.32

5.34

2.44

.804

.744

1.13

3.87

Aug.

46

45

44

46

44

53

47

46

46

43

43

42

43

49

68

61

55

53

52

50

48

50

47

88

144

95

83

95

72

65

61

Sept.

55

52

59

52

48

45

43

41

40

39

39

38

38

38

39

38

38

38

37

37

37

56

98

60

50

136

458

400

314

214

-

Runoff

Inches

2 . 89

6.49

39.54

7 . 60

6.43

4.30

4.81

6.16

2.72 * . 93

l!26

52.70

Acre feet

12,180

34,780

?7 3^O

166,600

32,030

27,110

18,140 

20,260

25 950

11^470

3,900

3,620 

55,310

222,100

Peak discharge (base. 1.500 sec.-ft.).- Nov. 7 (3:30 p.m.) 3,800 sec.-ft.j Dec. 17 (9 a.m.) 1,710 

sec.-ft.; Jan. 1 (10 p.m.) 2,290 sec.-ft.; Jan. 7 (7 a.m.) 2,740 sec.-ft.; Feb. 22 (6 a.m.) 1,880 

sec.-ft.; Feb. 26 (2 a.m.) 2,740 sec.-ft.; Mar. 22 .(12:30 a.m.) 2,080 sec.-ft.

f Computed on basis of partly estimated gage-height record.
NISQUALLY RIVER BASIN 79 

Ohop Creek near Eatonville, Wash.

Location.- Water-stage recorder, lat. 46°52'50", long. 122°16'38", In SE-q- sec. 10, T. 

16 N. , R. 4 E., 400 fe^t downstream from Lynch Creek, 600 feat downstream from outlet of Ohop Lake, and 1 mile northwest of Eatonville. Datum of gage Is 519.8 feat 

above mean sea level (from stadia traverse).

Drainage area.- 35.0 square miles.

Records available.- June 1927 to October 1932, September- 1941 to September 1948.

Average discharge.- 12 years, 62.1 second-feet.

Extremes.- Maximum discharge during year, 429 second-feet Feb. 26 (gage height, 3.62 

feet]; minimum not determined, probably occurred during period Oct. 1-2.

1927-32, 1941-48: 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 or doubtful or no 

gage-height record, which are fair. No diversion. Natural regulation in Ohop Lake

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

d6.0

312 '

52

20

22

17

15

14

13

13

13

12

12

12

17

53

88

89

161

204

161

117

9677'

S|

59

51

52

48

87

114

Nov.

214

145

120

105

99

144

324

316

206

196

154

125

133

122

161

156

149

142

124

110

96

86

77

70

66

72

70

65

60

62

"

Dec.

127

111

132

111

96

86

82

78

76

70

73

73

95

135

133

124

184

212

229

180

149

127

110

112

100

91

88

120

117

104

95

Jan.

112

234

232

223

196

240

322

258

198

176

167

149

132

124

112

102

93

84

76

70

67

68

70

71

66

61

56

52

50

49

47

Month

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

46

44

42

42

39

34

41

48

57

57

51

49

49

53

89

105

158

147

122

105

112

280

212

167

213

414

309

236

190

-

-

Secondf oo t days

1,773.0

3,969

3,620

24,073.3

3,957

3,511

3,739

3,683

3,557

2,060

912

736

878

32,395.0

Mar.

163

145

127

119

112

105

102

112

124

125

104

96

92

88

81

77

73

72

72

71

100

234

186

173

178

165

151

144

130

116

102

Maximum

204

324

229

429

322

414

234

200

282

120

45

40

110

414

Apr.

98

114

142

129

119

111

102

93

91

91

100

91

84

80

85

156

200

192

161

142

130

125

122

116

184

151

130

120

117

108

-

May

93

95

124

135

174

282

234

202

171

154

140

128

125

114

104

95

96

91

85

82

76

68

64

60

56

51

49

116

117

93

77

Minimum

6.0

60

70

6.0

47

34

71

49

31

20

17

10

6.0

June

67

59

54

50

45

41

37

34

33

31

76

71

100

77

85

90

80

75

80

120

110

100

90

80

75

70

65

60

55

50

-

Mean

57.2

132

117

66 .0

128

121

121

123

115

29.4

23.7

29.3

88.5

July

45

40

35

30

25

30

35

40

45

40

35

33

31

29

28

27

26

24

d30

d27

d25

24

23

21

21

20

27

28

24

22

22

Per 

square 

mile

1.63

3.77

3.34

1

3 66

3i46

3 46

3! 51

1 . 96

.840

.677

.837

2.53

A'lg.

20

21

21

dO

20

24

21

20

19

18

18

17

17

23

26

23

21

28

24

21

20

20

20

33

40

29

27

37

31

29

28

Sept.

25

23

26

25

22

22

20

19

18

17

17

15

14

14

15

14

13

11

11

11

10

22

31

20

18

52

90

110

100

73

Runoff

Inches Acre feet

1.83 ,520

4.22 ,870

3.85 ,180

25.59 4 ,750

4.20 ,850

3 97 420

3.91 IsiO

3.73 ,060

2.19 ,090 

.97 , 810

.73 ,460

.93 ,740

34.41 64,27"

Peak rge (base, 27'

p.m.

(3:30 a.m.) 429 sec.-ft.

d Doubtful gage-height record; discharge computed on basis of records for nearby streams.

Note.- No gage-height record June 15 to July 13; discharge computed on basis of records for 

nearby streams. Shifting-control method used Oct 3-18, Peb 26 to June 12, July 22 to Sept. 30.
80 NISQUALLY RIVER BASIN 

Tanwax Creek near McKenna, Wash.

Location,- Water-stage recorder, lat. 46°52'00", long. 122°27'10", in NW^NEi sec. 20, T.

 IB N ± , R. 3 E. , a quarter of a mile upstream from mouth and 7 miles southeast of McKenna.

Drainage area.- 27.2 square miles.

Records available.- November 1944 to September 1948.

Extremes.- Maximum discharge during year, 206 second-feet Feb. 26 (gage height, 2.62 feet);

 minimum, 1.5 second-feet Oct. 1 (gage height, 0.57 foot).

1944-48: Maximum discharge, 328 second-feet Dec. 15, 1946 (gage height, 3.20 feet); 

minimum, 0.9 second-foot Oct. 6, 7, 8, 1945.

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. Natural 

regulation in several lakes.

Rating tables, water year 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

D.5 1.0

.6 1.7

.7 Z.8

.8 4.4

Oct. 1 to Feb. 26

0.9 6.6

1.1 1Z.5

1.3 21

1.5 33

Feb. 27 to Sept. 3O

1.8 63

2.1 111

2.4 164

2.7 222

1.8 

3.2 

5.2

11

1.3 18

1.5 30

1.8 63

Note.- Same as preceding 

table above 1.8 fee*;.

Discharge, in second-feet, water year October 1947 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.

1.5

1.9

2.0

2.0

2.0

2.2

2.2

2.0

1.8

1.6

1.6

1.7

1.6

1.6

1.9

3.0

5.9

7.1

11.5

14

13.5

7.6

5.6

4.7

4.0

3.3

3.2

3.2

3.2

4.5

9.7

Nov.

22

22

18

17.5

15.5

17.5

22

35

29

30

27

23

23

25

37

57

49

46

41

39

35

32

28

26

25

26

27

26

24

24

Dec.

34

41

48

49

44

40

39

39

36

34

33

34

36

52

57

51

55

72

99

81

70

68

62

62

62

55

49

66

66

59

55

Jan.

58

108

157

146

146

135

146

146

125

116

123

126

111

94

83

74

64

61

53

48

45

44

42

41

39

36

33

31

30

31

29

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

Augu 

Sept

st ........................

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

Water year 1947-48 ..........

Feb.

28

27

26

26

26

23

24

26

41

47

40

37

36

36

47

63

94

86

75

69

66

104

118

99

104

191

185

155

130

-

Secondfoot-days

131 . 6

1,648'

9,067.9

2 521

2*029

2 135

1^524

1,438.5

499 . 5

213 9

120.1 

169.5

13,298.6

Mar.

114

101

88

78

69

63

60

72

68

59

55

53

47

46

41

40

37

36

37

36

42

121

121

102

111

101

86

75

66

59

51

Maximum

14

57

99

148

157

191

121

75

101

26

17

9.0 

16

191

Apr.

49

56

72

66

62

55

51

49

47

47

44

41

38

35

35

48

60

75

62

55

49

47

51

50

53

50

49

46

43

39

-

May

36

34

34

41

46

101

99

86

75

68

64

58

56

51

47

42

43

43

40

37

34

30

27

25

22

20

19.5

36

53

39

32

Minimum

1.5

15.5

33

1.2

29

23

36

35

19 10 ' 5

3.8

ftf

1.5

June

26

24

21

19

17.5

15.5

14.5

13

11.5

11

13

16

17

22

15.5

16.5

19.5

17

15.5

17.5

25

20

18. 5

17

15. 5

14.5

13

12

11.5

10

-

Mean

4.25

29.0

53.2

24.8

81. 3

70.0

68. 9

50. 8

46.4

16.6

6 . 90

3.87 

5.65

36.3

July

9.0

8.0

7.0

6.f

6.C

7.C

9.C

12

17

12

10

9.C

8.C

7.C

6.C

5.5

5.0

5.0

8.0

7.0

6.4

5.9

5.0

4.8

4.3

3.9

4.1

3.9

3.9

3.9

3.8

Per

square 

mile

0.156

1.07

1.96

.912

2 . 99

2.57

2 53

1*71 1 " ft?

. 61C

. 254

!l42

.208

1.33

Aug.

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

4

4

3

3

3

3

3

3

3

4

3

4

4

4

4

9

.8

.8

.6

.6

.6

.6

.6

.6

.4

.2

.0

.0

.0

.2

.9

.3

.1

.9

.6

.4

.2

.2

.0

.8

.3

.9

.1

.8

.8

.8

.0

Sept.

9.0

7.8

7.8

7.5

6.7

6.2

5.4

5.0

4.6

4.3

3.9

4.1

4.1

3.4

3.0

2.6

2.7

2.4

2.7

2.7

2.4

2.9

3.8

3.8

3.2

5.0

12

14.5

16

10

Runoff

Inches

0.18

1.19

2.25

12.39

3 45

2^77

2. 92

1 *97

.63

.29

.16 

.23

18.17

Acre-feet

261

1,720

3,270

17,980

5,000

4,020

4,230

3,020

2,850

911

424

238 

336

26,360

Peak discharge (base, 130 sec.-ft.).- Jan. 3 (6 to 10 a.m.) 162 sec.-ft.; Feb. 26 (2 p.m.) 206 

sec.-ft.; Mar. 22 (12 to 6 a.m.) 135 sec.-ft. _

Note.- No gage-height record June 12-14, June 30 to July 20; discharge_oomputed on basis of recorded range in stage and records for nearby -streams. Shifting-control method usec1 Oct. 21 to Nov. 

15, July 27 to Sept. 30.
CHAMBERS CREEK BASIN 81

Chambers Creek below Leach Creek, near Steilacoom, Wash.

Location.- Water-stage recorder, lat. 47°12', long. 122°32', in NE^NE^ sec. 27, T. 20 N., 

K. Si IS. , a quarter of a mile downstream from Leach Creek, and ij miles downstream from 

outlet of Steilacoom Lake, and 3 miles northeast of Steilaeoom.

Records available.- December 1937 to September 1940 July 1943 to September 1948.

Extremes.- Maximum discharge during year, 281 second-feec Jan. 14 (gage height, 2.47 feet); 

minimum, 52 second-feet Oct. 1, 2.

1937-40, 1943-48: Maximum discharge not determined, probably occurred during period 

of no gage-height record Feb. 13 to Mar. 6, 1939; minimum, 34 second-feet Aug. 16, 1940, 

Aug. 30, Oct. 25, 1944.

Remarks.- Records good except those for periods of shifting control, which are 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 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

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 

59 

66 

60 

58

57 

57 

56 

58 

66

70 

66 

64 

62 

67

75 

83 

76 

90 

74

67 

64 

65 

62 

62

65 

74 

74 

72 

74 

78

Nov.

86 

78 

79 

76 

75

74 

74 

70 

68 

68

66 

65 

65 

66 

75

73 

74 

72 

72 

70

70 

70 

70 

70 

69

69 

69 

69 

69 

75

Dec.

78 

75 

78 

75 

75

74 

75 

75 

75 

76

76 

76 

85 

83 

81

84 

85 

92 

88 

86

89 

92 

100 

107 

103

103 

111 

117 

113 

113 

126

Jan.

139 

154 

159 

180 

177

186 

199 

204 

202 

224

224 

216 

224 

271 

251

247 

237 

233 

227 

222

216 

210 

208 

206 

201

195 

189 

187 

184 

180 

174

Feb.

176 

170 

169 

169 

163

158 

156 

169 

165 

152

151 

147 

145 

147 

170

176 

178 

178 

176 

182

204 

216 

204 

210 

237

251 

251 

261 

261

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1947

St.... ..................................

ter year 1947-48 .......................

Mar.

261 

271 

261 

261 

261

251 

251 

251 

243 

237

235 

227 

223 

216 

214

208 

204 

206 

199 

193

229 

251 

239 

249 

251

249 

247 

245 

241 

239 

239

Apr.

237 

243 

241 

237 

233

229 

223 

220 

225 

216

212 

210 

210 

206 

208

208 

218 

208 

202 

201

199 

199 

199 

210 

210

201 

197 

197 

195 

191

Secondfoot-days

2,073 

2,146 

2,766

40,925

6,326 

5,392 

7,352 

6,385 

6,220 

3,781 

3,134 

2,934 

2,391

50,900

May

189 

185 

204 

197 

214

231 

218 

216 

£14 

218

126 

222 

222 

218 

214

218 

216 

210 

204 

206

195 

193 

184 

178 

174

172 

170 

201 

180 

172 

169

Maximum

90 

86 

126

286

271 

261 

271

243 

231 

165 

122 

104 

96

271

June

165 

160 

158 

152 

149

140 

124 

122 

118 

118

132 

132 

135 

135 

133

132 

128 

125 

122 

130

125 

122 

120 

114 

100

101 

103 

93 

96 

97

July

100 

100 

100 

103 

104

114 

122 

114 

108 

106

106 

101 

100 

100 

99

99 

99 

101 

110 

103

100 

97 

96 

94 

94

96 

97 

94 

94 

94 

89

Minimum

52 

65 

74

52

139 

145 

193 

191 

169 

93 

89 

84 

69

52

Aug.

85 

84 

85 

85 

86

90 

93 

97 

104 

97

97 

97 

97 

97 

100

97 

97 

96 

94 

94

94 

96 

96 

99 

97

96 

97 

97 

97 

97 

96

Mean

66.9 

71.5 

89. £

112

204 

186 

237 

213 

201 

126 

101 

94.6 

79.7

139

Sept.

96 

93 

93 

90 

88

88 

85 

83 

83 

81

80 

79 

75 

74 

76

74 

72 

72 

70 

69

70 

76 

76 

73 

72

83 

83 

83 

78 

76

Runoff in 

acre-feet

4,110 

4,260 

5,490

81,170

12,550 

10,690 

14,580 

12,660 

12,340 

7,500 

6,220 

5,820 

4,740

101,000

Note.- Shifting-control method used Nov. 7 to Mar. 3, Mar. 9 to Apr. 11, May 5 to June 9, July 29 

to Sept. 19.
PtIYALLUP RIVER BASIN

Puyallup River near Electron, Wash.

Location.- Water-stage recorder, lat. 46°54'10", long. 122°02'00", in NE-^NW-j- sec. 3, T. 

ib N. , "R. 6 E., 1,000 feet upstream from Puget Sound Power & Light Co.'s flume headworks, a quarter of a mile downstream from Mowlch River, and 10 miles sautheast of 

Electron.

Drainage area . - 93 square miles.

Records available - October 1908 to September 1926 and October 1944 to September 1948 in 

reports or Geological Survey. October 1908 to September 1933 (monthly discharge only) 

in State Water-Supply Bulletin 5.

Average discharge . - 22 years (1908-26, 1944-48), 510 second-feet.

Extremes. - Maximum discharge during year, 6,580 second-feet probably Nov. 7 (gage height, 

b.J.6 feet, from high-water mark in well); minimum, 190 second-feet Aor. I'o.

1908-26, 1944-48: Maximum discharge, 9,160 second-feet Dec. 11, 1946 (gage height, 

8.75 feet); minimum (estimated), 100 second-feet Dec. 12, 1922, when stage-discharge 

relation was affected by ice.

Remarks . - Records fair. No diversion or regulation. 

Revisions (water years ).- W 1092: 1945-46(M).

Discharge, in second-feet, water year October 1947 to September 194

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

329 

1,570 

2,130 

1,180 

715

545 

504 

480 

524 

468

432 

412 

428 

396 

1,000

1,050 

1,560 

1,660 

E,260 

1,540

1,190 

860 

690 

575 

555

590 

468 

468 

424 

496 

665

Nov.

950 

740 

665 

570 

520

580 

f2,990 

f2,790 

1,500 

1,340

1,080 

860 

980 

800 

980

860 

1,010 

1,020 

80O 

665

590 

524 

492 

476 

690

1,260 

920 

740 

635 

640

Dec.

770 

665 

740 

595

520

474 

456 

420 

388 

374

371 

371 

594 

532 

492

663 

1,220 

1,050 

800 

640

570 

516 

565 

715 

605

570 

665 

690 

560 

492 

516

Jan.

863 

980 

69O 

600 

508

800 

1,430 

980 

715 

640

550 

476 

440 

416 

384

f365 

f344 

332 

329

320

3O8 

338 

365 

356 

332

311 

302 

296 

290 

278 

269

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febi 

Hare 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 1947 .........

1

st ...............

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

ter year 1947-48 . .......

Feb.

260 

250 

248 

242 

235

225 

222 

232 

222 

210

208 

2 OS 

20S 

250 

293

333 

480 

545 

388 

344

526 

1,050 

595 

484 

827

1,580 

980 

665 

545

Secondfoot-days

25,164 

28,667 

18,597

208,698

15,607 

12,853 

9,214 

10,956 

25,972 

34,710 

19,657 

15,859 

11,373

229 F2 a

Mar.

488 

428 

377 

350 

341

338 

326 

311 

290 

f266

260 

258 

260 

250 

242

232 

228 

228 

220 

212

349 

424 

311 

287 

281

Z55 

260 

281 

305 

287 

269

Maximum

2,260 

2,990 

1,220

2,990

1,430 

1,580 

488 

625 

1,720 

1,870 

920 

715 

860

2,93J

Apr

255 

263 

252 

232 

230

230 

218 

215 

218 

220

212

202 

194 

202

308

625

580 

500 

464 

480

565 

620 

585 

565 

570

476 

416 

380 

353 

326

May

314 

296 

533 

520 

79E

1,720 

1,260 

860 

665 

580

528 

532 

565 

508 

476

550 

580 

550 

528 

B35

800 

860 

860 

1,040 

1,420

1,580 

1,670 

1,620 

1,260 

950 

920

Minimum

329

476 

371

228

269 

206 

212 

194 

296 

800 

500 

400 

232

134

June

980 

1,120 

1,050 

1,120 

1,190

1,420 

1,580 

1,580 

1,580 

1,500

1,380 

1,160 

1,190

1,020 

830

1,160 

1,050 

860 

800 

1,190

1,870 

1,220 

1,080 

950 

890

860 

860 

1,020 

1,120 

1,080

Mean

844 

956 

6OO

572

5O3 

443 

297 

365 

838 

1,157 

634 

512 

379

F27

July

860 

715 

690 

665 

585

715 

640 

545 

516 

570

555

5OO 

504 

532 

560

605 

6S5 

690 

800 

715

665 

665 

590 

508 

512

54 1; 

920 

690 

635 

610 

690

Per 

square 

mile

9.O8 

10.3 

6.45

6.15

5.41 

4.76 

3.19 

3.92 

9.01 

12.4 

6.82 

5.51 

4.08

6 74

Aug.

715 

690 

640 

635 

51Z

f540 

f484 

476 

516 

520

504 

496 

476 

488 

480

424 

40O 

444

436

420

416 

464 

408 

516

570

512 

500 

64O 

565 

524 

448

Sept.

408 

412 

432 

f365 

f341

f332 

335 

371 

408 

416

420 

412 

404 

396 

365

323 

281 

258 

245 

242

272 

353 

302 

250 

232

337 

860 

665 

516 

420

Runoff

Inches

10.46 

11.46 

7.44

83.45

6.24 

5.14 

3.68 

4.38 

10.39 

13.88 

7.86 

6.34 

4.55

31.82

Acre-feet

51,900 

56,860 

36,890

413,900

3O.96O 

25,490 

18,280 

21,730 

51,510 

68,850 

38,990 

31,460 

22,560

455,500

Peak discharge (base, 1,3CO sec . -f t . ) . - Oct. 3 (4:30 a.m.) 3,030 sec. -ft.; Oct. 19 (2:3O a.m.)

f Computed on basis of partly estimated gage-height record..
PUYALLUP RIVER BASIN 83

Puyallup River near Orting, Wash.

Location.- Water-stage recorder, lat. 47°02'30", long. 122°12'20", in Sw£ S"?c. 17, T. 18 

N., R. 5 E., 4 miles south of Orting and 7j miles upstream from Carbon River.

Drainage area.- 170 square miles.

Records available.- September 1331 to September 1948.

Average discharge.- 17 years, 693 second-feet.

Extremes.- Maximum discharge during year, 8,300 second-feet Nov. 7 (gage height, 7.66 

feet) ; minimum, 125 second-feet Sept. 17, 19; minimum daily, 256 second-feet Sept. 20.

1931-48: Maximum discharge not determined, occurred Dec. 9 or 10, 1933, 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 shifting control, which are fair, and 

those for periods of doubtful or no gage-height record, which are poor. Water diverted 

for Electron plant of Puget Sound Power & Light Co. returned to river abwe gage. 

Some regulation by Electron power plant.

Revisions (water years).- W 932: 

Rat ing

1937-39. W 962: 1934.

ables, water year 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Mar. 22

292

367

447

606

4.0 

4.5

5.0

810

1,120

1,580

2,140

2,820

3,940

Mar. 23 to Sept.

2.8 254 3.8

3.0 344 4.1

3.2 451 4.5

3.5 636 5.1

3C

861 

1,140 

1,550 

?,250

Discharge, in second feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

406 

1,390 

2,200 

1,200 

873

677 

594 

553 

570 

540

493 

472 

488 

482 

870

1,190 

1,700 

1,790 

2,900 

2,200

1,680 

1,290 

1,120 

976 

912

936 

789 

810 

726 

838 

1,080

Nov.

1,530 

1,290 

1,080 

1,020 

936

1,080 

3,720 

3,860 

2.O2O 

1,530

1,380 

dl,300 

dl , 50O 

dl,250 

dl , 400

dl , 300 

dl,400 

dl,500 

dl,300 

dl,150

dl.OOO 

d900 

d800 

d760 

d900

dl,500 

dl,100 

688 

782 

760

Dec.

1,000 

845 

1,050 

900 

800

7OO 

640 

600 

560 

540

520 

520 

900 

800 

700

1,000 

1,500 

1,600 

1,400 

1,100

9OO 

800 

900 

1,100 

880

780 

940 

1,000 

900 

831 

796

Jan.

1,150 

1,680 

1,430 

1,350 

1,120

1,430 

2,190 

1,630 

1,400 

1,200

1,000 

900 

820 

760 

700

660 

620 

580 

560 

540

520 

560 

600 

600 

560

520 

500 

484 

475 

460 

440

Month fS«

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

ary .... . .

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

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

Feb.

420 

400 

390 

380 

370

350 

350 

380 

410 

370

330 

310 

300

380

550

600

1,000

1,100 

910 

644

691 

1,790 

1,200 

960 

1,130

2,700 

1,800 

1,300 

1,100

ond-

-days

32,745 

40,936 

27,502

73,825

27,439 

22,615 

17,867 

17,161 

32,753 

37,890 

20,863 

17,437 

13,158

ter year 1947-48 .......... 308,366

Peak discharge (base, 4,50O sec. -ft. |. - Nc

d Doubtful gage-height record; discharge c 

near Electron. 

Note.- No gage-height record Nov. 3O, Dec

Mar.

1,000 

740 

737 

648 

<508

612 

598 

598 

592 

536

512 

488 

486 

458 

439

423 

410 

415 

410 

397

518 

1,060 

715 

638 

652

578 

545 

540 

549 

501 

464

Maximum

2,900 

3,860 

1,600

4,380

2,190 

2,700 

1,060 

955 

2,180 

2,060 

929 

789 

1,040

3,860

Apr.

433 

494 

524 

482 

444

408 

372 

352 

348 

368

400 

353 

336 

340 

433

904 

955 

861 

736 

692

758 

797 

781 

774 

895

714 

623 

565 

544 

476

May

450 

424 

643 

766 

920

2,180 

1,820 

1,340 

1,100 

946

845 

805 

845 

774 

699

744 

789 

774 

714 

781

965 

1,010 

929 

,050 

,440

,660 

,820 

,880 

,440 

,130 

,070

Minimum

406 

760 

520

295

44O 

300 

397 

336 

424 

904 

515 

429 

256

256

June

1,130 

1,200 

1,500 

1,240 

1,220

1,390 

1,600 

1,720 

1,720 

1,60O

1,550 

1,240 

1,250 

1,090 

904

1,210 

1,200 

946 

912 

1,310

2,060 

1,500 

1,210 

1,050 

974

912 

912 

1,050 

1,160 

1,130

Mean

1,056 

1,365 

887

750

885 

780 

576 

572 

1,057 

1,263 

673 

562 

439

843

July

904 

751 

706 

706 

616

751 

744 

630 

552 

590

590 

528 

515 

534 

565

604 

671 

744 

837 

758

706 

699 

643 

546 

515

565 

929 

829 

699 

678 

758

Per 

square 

mile

6.21 

8.03 

5.22

4.41

5.21 

4.59 

3.39 

3.36 

6.22 

7.43 

3.96 

3.31 

2.58

4.96

Aug.

789 

721 

714 

657 

534

559 

492 

546 

559 

546

528 

509 

521 

509 

546

457 

429 

463 

463 

457

440 

509 

474 

559 

671

623 

571 

736 

678 

643 

534

Sept.

486 

464 

530 

424 

372

373 

383 

414 

452 

450

450 

443 

434 

442 

390

311 

279 

265 

258 

256

282 

398 

378 

296 

266

368 

1,040 

929 

728 

597

Runoff

Inphes

7.16 

8.96 

6.02

59.90

6.00 

4.95 

3.91 

3.75 

7.17 

8.29 

4.56 

3.81 

2.88

67.46

Acre-feet

64,950 

81,200 

54,550

543,100

54,420 

44,860 

35,440 

34,040 

64,960 

75,150 

41,380 

34,590 

26,100

611,600

>v. 7 (10:30 p.m.) 8,300 sec. -ft. 

.omputed on basis of records for stations at Alderton and

1, Dec. 14-29, Jan. 9-27, Jan. 29 to Fet . 19, Feb. 26

to Mar. 2; discharge computed on basis of 2 discharge measurements, recorded range ir stage and records for stations at Alderton and near Electron. Shifting-control method used Oct. 17 to Mar. 22.
84 PUYALLUP RIVER BASIN

Ptiyallup River at Alderton, Wash.

Location.- Water-stage recorder, lat . 47°11'05", long. 122°13'45", on line between sec.

 afa, 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 Suraner, arid 15 miles upstream from Stuck River.

Drainage area.- 438 square miles.

Records available.- October 1914 to February 1927, October 1943 to September 1948.

Average discharge.- 17 years (1914-26, 1943-48), 1,566 second-feet.

Extremes . - Maximum discharge during year, 14,600 second-feet Nov. 8 (gage height, 54.42

 feet); minimum, 458 second-feet Sept. 21 (gage height, 47.87 feet).

1914-27. 1943-48: Maximum discharge, 22,600 second-feet Dec. 11, 1946 (gage height, 

56.80 feet); minimum observed, 228 second-feet Sept. 22, 1924.

Remarks . - Records good except those for periods of shifting control or no gage-height

 record , which are fair. Water diverted for Electron power plant of Puget Sound Power 

& Light Co. returned to river above gage. Some regulation by Electron power plant.

Revisions .- W 870 : Drainage area .

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

754

2,330

5,850

2,760

1,840

1,330

1,070

941

880

890

811

717

708

773

966

2,120

2,690

4,130

6,090

4,750

3,250

2,600

2,000

1,610

1,550

1,510

1,270

1,280

1,160

1,340

1,840

Nov.

3,280

2,920

2,590

2,120

1,910

1,980

6,180

10,200

4,930

3,930

3,550

2,760

2,920

2,590

2,920

2,920

3,010

3,190

2,510

2,200

1,840

1,610

1,460

1,340

1,400

3,010

2,510

2,050

1,770

1,700

-

Dec.

2,200

1,980

2,430

2,050

1,770

1,560

1,520

1,410

1,350

1,220

1,270

1,200

1,610

2,120

1,910

1,910

3,370

3,550

3,460

2,670

2,280

1,980

1,840

2,120

1,980

1,840

1,840

2,280

1,980

1,770

1,640

Jan.

2,200

3,740

3,190

2,920

2,430

2,920

4,330

3,930

2,920

2,670

2,430

1,980

1,770

1,640

1,490

1,370

1,320

1,250

1,190

1,130

1,070

1,130

1,220

1,250

1,160

1,080

1,040

996

974

941

870

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

860

820

782

773

744

690

699

792

920

840

744

726

717

754

1,350

1,370

2,510

2,510

1,980

1,560

1,610

4,540

3,460

2,510

2,670

6,920

4,780

3,100

2,600

_

-

Secondfoot-days

61,810

87,300

62,110

606,129

58,551

54,331

44,390

50,210

80,940

85,190

47,070

39,070

30,755

701,727

Mar.

2,200

1,800

1,650

1,550

1,500

1,550

1,500

1,500

f 1,400

fl,310

1,150

1,100

1,050

1,000

950

920

900

900

880

850

1,050

2,760

2,050

1,770

1,910

1,640

1,550

1,550

1,560

1,510

1,380

Maximum

6,090

10,200

3,550

10,200

4,330

6,920

2,760

2,920

5,190

5,410

2,050

1,630

2,350

10,200

Apr

1,300

1,450

1,550

1,450

1,350

1,250

1,200

1,100

1,050

1,120

1,230

1,120

1,020

1,010

1,190

2,590

2,920

2,670

2,200

2,050

2,120

2,200

2,120

2,050

2,430

2,050

1,770

1,630

1,590

1,430

-

May

1,320

1,260

1,460

1,980

2,260

5,190

4,860

3,370

2,760

2,430

2,200

2,050

2,120

1,980

1,770

1,840

1,980

1,980

1,770

1,910

2,350

2,510

2,20O

1,430

3,280

3,740

4,230

4,540

3,740

2,840

2,590

Minimum

708

1,340

1,200

480

870

690

850

1,010

1,260

1,980

1,170

1,010

594

594

June

2,670

2,760

3,280

2,840

2,670

3,010

3,550

3,740

3,740

3,740

3,460

2,920

2,670

2,350

1,980

2,350

2,760

2,200

1,980

2,670

5,410

3,740

2,840

2,430

2,280

2,120

2,050

2,200

2,350

2,430

-

Mean

1,994

2,910

2,004

1,661

1,889

1,873

1,432

1,674

2,611

2,840

1,518

1,260

1,025

1,917

July

2,050

1,700

1,59C

1.60C

1,49C

1.77C

1,910

1,640

1.40C

1.43C

1,43C

1,31C

1.25C

1,26C

1,27C

1,29C

1,370

1.50C

1,84C

1.77C

1.60C

1.51C

1.46C

1,270

1,170

1,200

1,700

1,840

1,510

1,440

1,500

Per

square 

mile

4.55

e.64

4.58

3.79

4.31

4.2b

3.27

3.82

5.96

6.48

3.47

2.88

2.34

4.38

Aug.

1,630

1,E

1.4

1,4

80

90

40

1,220

1,340

1,1

1.1

1,2

90

90

20

1,200

1,140

1,1

1,1

1,2

30

10

60

1,260

1,110

l.C

1,C

1,C

10

60

40

1,040

1,020

l.C

1,C

1,1

8O

70

90

1,560

1,430

1,3

1,6

1,5

1,4

30

00

10

00

1,220

Sept.

1,100

1,030

1,210

1,050

890

880

880

890

930

910

941

930

920

940

880

754

672

645

611

594

628

900

1,100

800

690

820

2,350

2,280

1,980

1,550

Runoff

Inches

5.25

7.41

5.27

51.46

4.97

4.61

3.77

4.26

6.87

7.23

4.00

3.32

2.61

59.57

Acre-feet

122,600

173,200

123,200

1,202,000

116,100

107,800

88,050

99,590

160,500

169,000

"93,360

77,490

61,000

1,392,000

Peak discharge (base, 6,400 sec.-ft.).- Oct. 3 (2 a.m.) 7,310 sec.-ft.; Oct. 19 (11 a.m.) 8,090 

sec.-ft.; Nov. 8 (1 a.m.J 14,600 sec.-ft.; Feb. 26 (l p.m.) 3,090 sec.-ft.

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Oct. 21, 22, Feb. 28 to Mar. 8, Mar. 11-18, Apr. 1-9; discharge computed on basis of 1 discharge measurement, recorded range in stage, and records for nearby stations. 

Shifting-control method used Oct. 3 to Nov. 2, Nov. 10 to Mar. 22, June 11-21.
PUYALLUP RIVER BASIN 85

Puyallup River at Puyallup, Wash.

Location.- Water-stage recorder, lat. 47°12'20", long. 122°19'30", in NE£ sec. 20, T. 20 

W., K. 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.

Records available.- May 1914 to September 1948.

Average aiscnargeT- 34 years, 3,217 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, 17,700 second-feet Nov. 8 (gage height, 19.60 

feet); minimum, 840 second-feet Sept. 19 (gage height, 9.09 feet).

1914-48: Maximum discharge, 57,000 second-feet Dec. 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 except those for periods of faulty or no gage-height record, which 

are poor. All diverted water returned to river above gage. Large part of flow of 

White-River diverted into Lake Tapps returned via Stuck River above this station. 

Adjustment for regulation in Mud Mountain Reservoir discontinued with this report. 

Records of daily discharge not adjusted for change in contents of Lake Tapps. Lake 

Tapps, lat. 47°14 I 20", long. 122°11'30", in sec. 8, T. 20 N., R. 5 E., completed in 

1912, has usable capacity of 50,400 acre-feet between elevations 505 and 541 feet. 

Flood water regulated by Mud Mountain Reservoir on White River. Some pondage on tributaries and upper Puyallup River.

Cooperation.- Records of change in contents in Lake Tapps furnished by Puget Sound Power 

& Light Co.

Revisions.- W 832: Drainage area.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wat

Oct.

1,670 

2,770 

9,170 

5,520 

3,220

3,110 

3.0OO 

2,120 

2,040 

2,450

1,680 

1,280 

2,280 

2,190 

2,260

3,790 

4,670 

7,270 

10,600 

9', 7 40

7,670 

5,720 

4,420 

3,520 

2,900

2,650 

2,760 

2,760 

2,650 

2,590 

3,250

Nov.

5,440 

5,560 

4,410 

3,610 

f3,220

f3,220 

6,950 

15,700 

9,480 

7,700

7,480 

6,470 

7,100 

6,040 

6,060

5,430 

5,330 

5,870 

5,340 

4,910

4,820 

4,160 

3,540 

3,660 

3,740

5,120 

5,520 

4,830 

4,390 

4,140

Month

endar year 1947

1. ..............

st ..............

er year 1947-48

Dec.

4,760 

4,810 

5,000 

4,910 

4,480

4,320 

3,870 

3,820 

3,740 

3,300

3,070 

2,920 

3,120 

3,95.0 

4,080

4,100 

5,950 

6,860 

6,950 

6,OOO

5,120 

4,570 

5,410 

5,660 

4, 600

4,510 

3,520 

3,680 

4,340 

4,400 

4,080

Jan.

4,480 

6,200 

6,500 

6,640 

5,410

5,910 

8,140 

8,340

6,180 

5,680

5,120 

4,360 

3,920 

3,590 

3,280

3,110 

3,100 

2,270 

2,790 

2,640

2,560 

2.9OO 

2,780 

2,550 

2,650

2,820 

2,710 

2,590 

2,760 

2,660 

1,950

Feb.

1,660 

2,030 

2,240 

1,980 

2,030

1,970 

1,960 

1,560 

2,560 

2,O4O

2,110 

2,120 

1,930 

1,850 

2,110

2,860 

3,890 

4,400 

3,840 

3,450

" 3,390 

7,020 

6,830 

5,360 

5,340

10,900 

9,390 

6,830 

5,440

Mar.

4,550 

4,360 

3,960 

3,710 

3,550

3,430 

3,440 

3,540 

3,560 

3,390

3,270 

3,140 

3,480 

3,150 

2,890

2,660 

2,550 

2,420 

2,480 

2,010

1,97O 

4,810 

3,940 

3,590 

3,730

3,480 

3,160 

2,650 

3,210 

3,240 

3,090

Observed

Discharge in 

second-feet

Maximum

10,600 

15,700 

6,950

15,700

8,340 

10,90O 

4,810 

4,500 

10,100 

10,000 

5,48o 

3,250 

3,620

15,700

Minimum

1,230 

3,220 

2,920

972

1,950 

1,560 

1,970 

1,750 

2,200 

5,740 

2,060 

1,590 

930

930

Mean

3,926 

5,641 

4,513

3,582

4,084 

3,762 

3,304 

3,153 

5,095 

6,963 

3,447 

2,454 

1,824

4,011

Runoff 

in 

acre-feet

241,400 

335,790 

277,500

2,593,000

251,100 

216,400 

203,100 

187,600 

313,300 

414,300 

211,900 

150,900 

108,500

2,912,000

Apr.

3,010 

3,190 

3,220 

2,730 

2,960

2,800 

2,620 

2,520 

2,540 

fl,750

2,380 

f2,100 

2,080 

f2,050 

2,400

3,500 

4,500 

4,300 

4, ICO 

3,900

4,000 

4,300 

4,150 

4,000 

4,OOO

3,800 

3,500 

3,000 

2,700 

2,500

May

2,400 

2,2OO 

2.40O 

2,700 

3,500

7,000 

7,500 

6,000 

5,OOO 

4,000

3,40O 

3,000 

4,500 

4,000 

3,6OO

4,100 

4,OOO 

4,800 

4,400 

4,600

5,790 

5,j.'0 

4,841 

b,330 

6,190

6,790 

8,140 

10, 10O 

9,390 

6,760 

6,360

Change In

contents 

In 

Lake Tapps 

(acre-feet)

+1,140 

-590 

-3,11O

-1,940

+1,850 

+620 

-17,720 

+3,610 

+10,410 

-1,300 

+770 

-1,340 

+740

+80

June

7,ooo 

7,500 

8,OOO 

7,400 

6.OOO

6,500 

7,200 

7,790 

9,530 

10,000

9,750 

7,O5O 

6,390 

6,260 

6,08O

6.29O 

6,61O 

6,070 

5,790 

6,070

S,93O

7,750 

6,810 

6,360 

6,110

6,050 

6,210 

5,800 

5,740 

5,860

July

5,480 

5,100 

4,100 

3,O40 

3,690

3,880 

4,260 

4,050 

3,65O 

3,170

3,080 

3,280 

3.2OO 

3,170 

3,100

3,130 

2,910 

2,680 

3,870 

3,690

3,510 

3,470 

3,390 

2,690 

2,060

2,960 

3,450 

3,710 

3,310 

3,210 

2,560

Aug.

2,420 

3,250 

3,170 

3,100 

2,920

3,070 

1,990 

1,590 

2,810 

2,920

2,630 

2,350 

2,O9O

1,990 

1,690

2,580 

2,250 

2,270 

2,240 

2,210

1,780 

1,590 

2,380 

2,300 

2,620

2,690 

2,720 

2,850 

2,210 

2,840 

2,560

Sept.

2,43O 

2,450 

2,270 

1,510 

1,190

1,160 

1,810 

1,940 

2,OOO 

2,120

1,430 

1,210 

1,770 

1,780 

1,820

1,530 

1,340 

1,130 

930 

1,310

1,250 

1,640 

1,920 

1,450 

1,140

1,240 

3,220 

3,620 

3,290 

2,770

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-feet

242,500 

335,100 

274,400

2,591,000

253,000 

217,000 

135,400 

196,200 

323,700 

413,000 

212,700 

149,600 

109,200

2,912,000

Discharge in 

second-feet

Per 

Mean square 

mile

3,944 

5,632 

4,463

3,579

4,115 

3,773 

3,015 

3,297 

5,264 

6,941 

3,459 

2,433 

1,835

4,011 4.23

Runoff

inches

57.59

f Computed on basis of partly estimated gage-height record. 

Note.- No gage-height record Apr. 13, Apr. 15 to May 20, June 

records for other streams in basin.

1-7; discharge computed on basis of
86 POYALLUP RIVER BASIN

Kapowsin Creek near Kapowsin, Wash.

Location.- Water-ttage recorder, lat. 46°59'45", long. 122 0 11'45", In NE£ sec. 5, T. 17 

N., K. 5 E., half a mile downstream from Kapowsin Lake and li 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 1948.

Average discharge.- 12 years, 46.5 second-feet.

Extremes.- Maximum discharge during year, 260 second-feet Feb. 26 (gage h3ight, 4.02 

feet); minimum, 4.7 second-feet Oct. 1, 2 (gage height, 1.89 feet).

1927-32, 1941-48: Maximum discharge, 605 second-feet Dee. 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 shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. Natural regulation in 

Kapowsin Lake. No diversion.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

5.8

7.4

8.2

8.5

8.5

8.2

8.2

8.2

7.9

7.6

7.6

7.6

7.6

8.2

10

14

24

41

71

85

74

66

57

49

42

37

35

34

37

46

Nov

72

90

87

80

76

74

85

138

133

118

103

86

81

77

89

107

106

100

92

83

77

72

65

60

55

60

55

50

49

49

-

Dec

58

65

71

73

71

66

64

62

60

58

58

62

66

75

72

68

90

120

130

110

100

90

85

85

80

75

70

90

85

75

70

Jan.

85

130

125

120

100

130

190

221

192

174

168

148

130

121

100

90

80

70

60

50

45

47

49

52

48

45

44

43

42

41

40

Month

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

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

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

Calend&r year 194^ . . ....

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

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

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

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

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

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

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

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

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

Water year 1347-48 ..........

Feb

39

38

37

36

35

33

40

45

50

49

47

45

45

48

60

80

100

120

117

108

108

166

200

174

166

242

242

204

171

-

Secondfoot-days

836.2

2,4fi9

2.404

16,278.9

,

2J845

2,974

2,608

2,647

1 *535 232

478.5

22,386.6

Mar.

148

136

122

110

100

94

92

94

94

90

82

78

74

71

67

65

62

60

59

58

65

117

138

132

134

128

118

108

101

92

85

Maximum

85

138

130

327

2'1

242

148

113

150

56

27

18

41

242

Apr.

81

87

103

101

97

92

87

81

81

77

76

73

69

67

66

77

101

113

107

96

87

86

86

87

94

97

90

85

83

81

May

77

73

74

82

89

128

150

148

134

125

117

108

104

97

90

85

83

80

77

74

71

66

. 61

58

54

52

50

56

63

62

59

Minimum

4.7

49

58

3.0

40

53

66

50

12.5

9.2

10.5

4.7

June

56

50

47

42

39

38

34

33

29

28

33

35

40

42

40

40

42

42

40

44

52

54

52

49

46

43

40

38

34

30

-

Mean

27.0

82.3

77.5

44.6

9-3.1

98.1

95 9

86.9

85.4

41.1

17.3

12.2

16.0

61.2

July

27

24

21

18.5

16.5

18

21

23

23

23

21

20

19

18

16.5

15.5

15

15

15.5

14.5

14.5

14.5

13.5

12.5

12.5

13

13.5

13.5

14

14.5

14

Per 

square 

mile

1,17

3.58

3.37

1.94

4.18

4.27

4.17

3.71

1.79

.752

.530

.696

2.66

Aug.

13

12

11.5

11.5

10

10.5

10

9.9

9.9

9.5

9.2

9.2

9.2

9.5

11

11

12

12.5

12.5

12.5

12

12.5

12

13.5

13.5

14

15.5

16.5

16.5

17.5

18

Sept

16

15.5

15

15

15

15

14.5

13.5

13.5

13.5

13

12.5

12

11.5

11.5

11

11

10.5

10.5

10.5

11

12

13

13.5

14

17.5

23

32

41

41

"

Runoff

Inches

1.35

3.99

3.39

26.31

4.82

4.60

4.81

4.22

4.28

1.99

. 87

.61

.77

36.20

Ac re- feet

1.E60

4,900

4,770

32,290

5,910

5,640

5,900

5,170

5,250

2,440

1,060

750

949

44,400

(base, 160 sec.-ft.).- Probably Jan. 7 (time unknown) 238 sec.-ft.; Feb. 26 (9 p.m.)
PUYALLUP RIVER BASIN 87

Carbon River near Fairfax, Wash.

Location.- Water-stage recorder, lat. 47°01'30", long. 122°02'00", in SWj sec. 22, T. 18 

N., K. 6 E., 1-f miles northwest of Fairfax and 12 miles upstream from Voights Creek.

Drainage area.- 81 square miles.

Records available.- March 1929 to September 1948. November 1910 to July 1912 at site l£ 

miles upstream, published as Carbon River at Fairfax.

Average discharge.- 19 years (1929-48), 403 second-feet.

Extremes.- Maximum discharge during year; 4,330 second-feet Nov. 7 (gage height, 6.15 

feet), from rating curve extended above 2,400 second-feet; minimum, 103 second-feet 

Feb. 12, 13 (gage height, 1.00 feet).

1910-12, 1929-48: Maximum discharge, 8,030 second-feet Dec. 9, 1933 (gage height, 

10.2 feet), from rating curve extended above 500 second-feet; minimum, 40 second-feet 

(estimated) Jan. 20, 1930.

Remarks.- Records good. Diversions by lumber industry returned to river above gage. No 

regulation.

Revisions.- W 832: Drainage area.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

33 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct

223 

1,350 

2,060 

1,100 

800

565 

486 

429 

406 

397

380 

359

338 

342 

393

 650 

825 

1,100 

1,810 

1,330

925 

710 

644 

545 

476

452 

411 

380 

342 

347 

389

Nov.

606 

550 

500 

447

411

443 

2,260 

2,100 

960 

890

770 

628 

710 

580 

710

655 

830 

770 

611 

510

420 

372 

330 

291 

411

1,100 

770 

611 

505 

457

Dec.

550 

481 

628 

481 

393

338 

306 

269 

240

213

223 

213 

367 

424 

380

380 

740 

710 

622 

530

452 

406 

359 

420 

447

424 

415 

486 

438 

372 

347

Jan.

447 

606 

540 

490 

420

510 

830 

655 

565 

500

462 

393 

347 

310

291

269 

258 

247 

240 

233

227 

233 

254 

258

233

204 

201 

194 

181 

185 

176

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194

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

ter year 1947-48 ..........

Feb.

168 

153 

143 

137 

127

117 

115 

125 

140

132

117 

108 

108 

113 

216

279 

355 

397 

302 

258

372 

1,060 

682 

505 

736

1,540 

890 

633 

500

Secondfoot days

20,964 

21,208 

13,054

166,578

10,969 

10,528 

7,094 

9,269 

19,993 

26,994 

14,095 

10,473 

7,092

171,733

Mar

429 

355 

302 

269

254

254 

233 

230

230 

223

216 

210 

204 

201 

191

182 

173 

168 

168 

162

173 

279 

223 

220 

227

216 

204 

204 

227 

244 

223

Maximum

2,060 

2,260 

740

2,260

830 

1,540 

429 

638 

1,330 

1,540 

655 

490 

575

2,260

Apr.

213 

220 

216 

210 

204

185 

176 

165 

153

156

168 

159 

150 

140 

251

638 

616 

495 

443 

452

515 

495 

476 

466 

438

376

314 

291 

258 

230

May

223 

216 

254 

334 

507

1,170 

960 

710 

560 

481

438 

429 

434 

411 

363

402 

438 

434 

406 

476

710 

740 

682 

800 

1,060

1,170 

1,290 

1,330 

995 

800 

770

Minimum

223 

291 

213

145

176 

108 

16C 

140 

216 

655 

347 

269 

145

108

June

830 

860 

995 

830 

860

995 

1,140 

1,170 

1,210 

1,170

1,140 

890 

830 

740 

655

860 

830 

710 

655 

970

1,540 

1,100 

860 

740 

710

682 

682 

740 

800 

800

Mean

676 

707 

421

456

354 

363 

229 

309 

645 

900 

455 

338 

236

469

July

655 

545 

520 

500 

452

535 

540 

457 

415 

438

429 

393 

393 

393 

393

397 

415 

490 

585 

490

481 

471 

443 

376 

347

351 

540 

476 

389 

380 

406

Per 

square 

mile

8.35 

8.73 

5.20

5.63

4.37 

4.48 

2.83 

3.81 

7.96 

11.1 

5.62 

4.17 

2.91

5.79

Aug.

471 

490 

434 

384 

330

384 

310 

314 

322 

318

310 

322 

330 

338 

342

272 

269 

269 

291 

272

276 

276 

272 

338 

402

367 

342 

429 

389 

334 

276

Sept.

247 

254 

299 

237 

201

194 

201 

213 

220 

223

227 

233 

244 

247 

201

191 

179 

168 

162 

153

145 

182 

194 

176 

162

188 

575 

490 

384 

302

Runoff

Inct es

9.63 

9.74 

5.99

76.49

5.04 

4.83 

3.26 

4.26 

9.18 

12.39 

6.47 

4.81 

3.26

78.86

Peak discharge (base, 1,800 sec. -ft.).- Oct. 3 (1:30 a.m.) 2,780 ser.-ft.; Oct. 19 (5

Acre-feet

41,580 

42,070 

25,890

330,400

21,760 

20,880 

14,070 

18,380 

39,660 

53,540 

27,960 

20,770 

14,070

340,600

:30 a.m.)

939922 O - 51 - 7
88 POYALLUP RIVER BASIN

White River at Greenwater, Wash.

Location.- Water-stage recorder, lat. 47°08'50", long. 121°38'50", in SE^ sec. 10, T. 19 

N., K. 9 E., three-quarters of a mile southeast of Greenwater, three-qus-rters of a 

mile upstream from Greenwater River, and 25 miles upstream from Buckley.

Drainage area.- 216 square milea

Records available - March 1929 to September 1948. September 1911 to May 1912 (fragmentary) at site a miles upstream, published as White River near Enumclaw.

Average discharge.- 13 years (1929-48), 799 second-feet.

Extremes.- Maximum discharge during year, 5,000 second-feet May 28 (gage height, 

b.52 feet) ; ""minimum, 337 second-feet Feb. 11 (gage height, 2.21 feet).

1911-12, 1929-48: Maximum discharge, 12,100 second-feet Dec. 21, 19?3 (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, vater year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

(Shifting-control method used Oct. 1-19)

2.2 332 3.0 833 3.4 2,710 

2.4 428 3.3 1,100 5.0 3,750 

2.6 543 3.6 1,410 5.5 5,000 

2.8 678 4.0 1,910

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28

29 

30 

31

Oct.

513 

1,280 

2,020 

1,330 

1,060

876 

769 

738 

801

761

700 

671 

671 

664 

901

1,150 

1,250 

1,780 

3,530 

2,440

1,700 

1,300 

1,110 

963 

876

842 

769 

753 

693 

693 

945

Nov.

1,280 

1,120 

1,010 

918 

858

901 

1,900 

2,640 

1,740 

1,510

1,380 

1,170 

1,280 

1,130 

1,020

918 

1,080 

1,190 

1,060 

954

842 

777 

730 

708 

777

1,240 

1,160 

1,040 

963 

910

Dec.

918 

858 

918 

850 noi

753 

730 

693 

671 

636

622 

608 

769 

777 

730

761 

1,020 

1,080 

981 

876

817 

769 

769 

801 

785

785 

850 

858 

809 

753 

738

Jan.

901 

1,300 

1,120 

950 

850

1,000 

1,400 

1,250 

1,100 

950

850 

750 

670 

620 

580

560 

550 

530 

500 

480

440 

510 

600 

680 

640

600 

560 

520 

490 

480 

465

Month ^

Octc 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

lendar year 1947 ...... 

ary

Feb.

450 

430 

420 

410 

400

390 

380 

375 

370 

369

360 

355 

360 

373 

388

378 

466 

543 

483 

456

513 

1,060 

833 

700 

740

1,450 

1,250 

1,150 

1,000

ond-

-days

34,549 

34,206 

24,786

340,049

st

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

22,896 

16,852 

15,454 

20,710 

19,352 

79,570 

33,740 

21,407 

14,024

ter year 1947 48 .......... 367,546

Har.

850

740 

650 

600 

550

520 

500 

490 

480 

465

450 

440 

430 

420 

410

405 

398 

393 

383 

373

423 

595 

513 

489 

478

450 

444 

472 

550 

550 

543

Maximum

3,530 

2,640 

1,080

3,530

1,400 

1,450 

850 

1,160 

4,730 

4,100 

1,870 

981 

562

4,730

Apr.

519 

513 

495 

472 

461

434 

423 

408 

418 

423

418 

398 

398 

413 

507

936 

1,030 

972 

936 

963

1,120 

1,160 

1,080 

1,040 

1,020

892 

801 

738 

686 

636

Hay

602 

576 

657 

700 

753

1,230 

1,340 

1,130 

1,020 

945

892 

936 

999 

927 

892

963 

1,050 

1,040 

1,030 

1,170

1,570 

1,780 

1,780 

2,050

2,620

3,420 

4,730 

4,600 

3,310 

2,360 

2,280

Minimum

513 

708 

608

380

440 

355 

373 

398 

576 

1,870 

825 

569 

360

355

Peak discharge (base, 2,000 sec. -ft.).- Oct. 3 (4:30 a.m.) 2

June

2,280 

2,530 

2,900 

2,800 

2,710

3,100 

3,530 

3,750 

3,860 

3,750

'4,100 

3,310 

3,100 

2,710 

2,360

2,530 

2,530 

2,280 

2,120 

2,280

2,710 

2,280 

2,050 

2,020 

1,910

1,870 

1,910 

2,050 

2,120

2,120

Hean

1,114 

1,140 

800

932

739 

581 

499 

690 

1,592 

2,652 

1,088 

691 

467

1,004

July

1,870 

1,590 

1,490 

1,400 

1,230

1,260 

1,230 

1,100 

1,040 

1,070

1,060 

999 

999 

999 

1,010

1,010 

1,070 

1,180 

1,090 

1,040

1,030 

1,010 

981 

892 

842

833 

936 

825 

842 

858 

954

Per 

square 

mile

5.16 

5.28 

3.70

4.31

3.42 

2.69 

2.31 

3.19 

7.37 

12.3 

5.04 

3.ZO 

2.16

4.65

280 sec. -ft.; Oot

Aug.

981 

936 

901 

842 

753

769 

708 

738 

708 

708

700 

686 

664 

643 

723

615 

615 

622 

608 

595

595

622 

622 

602 

629

629 

608 

708 

686 

622 

569

Sept.

562 

550 

556 

495 

472

466 

478 

501 

525 

531

537 

531 

543 

550 

483

434 

408 

398 

403 

403

393 

423 

393 

373 

360

403 

501 

489 

450 

413

Runoff

Inches

5.95 

5.89 

4.27

59.56

3.94 

2.90 

2.66 

3.57 

8.50 

13.70 

5.81 

3.69 

2.41

63.29

19 (7 «

Acre-feet

68,530 

67,850 

49,160

674,500

45,410 

33,430 

30,650 

41,080 

97,890 

157,800 

66,920 

42,460 

27,820

729,000

i.m.) 4,600

sec.-ft.; Nov. 7 (12 p.m.) 3,530 see.-ft.; May ?8 (6:30 a.m.) 5,000 sec.-ft.; June 11 (12:30 p.m.) 

4,470 sec.-ft.

Note.- No gage-height record Jan. 2 to Feb. 9, .Feb. 25 to Mar. 15; discharge computed on basis of 

recorded range in stage and records for nearby streams.
PUYALLUP RIVER BASIN 89 

Mud Mountain Reservoir near Buckley, Wash.

Location.- Staff gage, lat. 47°08', long. 121°56', 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 Clearw.ater River.

Records available.- October 1944 to September 1948.

Extremes.- Maximum contents observed during year, 16,470 acre-feet June 14 (elevation,

 1,067.1 feet); no pool Oct. 11-15 (contents negligible).

Maximum contents observed since dam was completed, that of June 14, 19^8.

Remarks.- Gage read once daily about noon. Reservoir, for,flood control, is formed 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 soon after 

a flood as is possible without creating damaging flows downstream in order to have the 

maximum capacity available for any following flood which might develop. Storage began 

on small scale in 1942.

Cooperation.- Records of reservoir elevations and capacity table furnished by Corps of

Engineers.

Elevation, In feet, water year October 1947 to September 1948

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.

921.0

927.0

976.5

961.4

939.0

961.0

927.0

923.5

925.0

926.0

_

-

-

-

-

923.0

934.0

970.2

988.1

981.0

976.0

969.1

946.5

956.0

962.9

958.2

959.6

930.0

930.8

932.0

929.5

Nov.

960.7

963.4

954.3

934.8

960.8

965.3

981.2

988.4

979.5

977.0

978.5

974.1

975.2

973.3

971.5

964.0

953.0

973.2

971.0

963.6

935.3

936.2

933-3

927.2

931.2

960.3

970.5

962.0

935.0

927.0

-

Deo.

942.0

934.0

946.5

943. E

935.0

929.2

936.5

931.0

955.0

960.9

929.0

945.5

930.4

951.5

934.8

931.2

958.7

972.1

970.6

957.4

934.4

929.7

925.0

931.4

931.2

930.8

933.7

938.0

941.5

944.6

926.7

Jan.

928.5

972.2

969.0

955.2

931.0

952.8

976.2

974.2

969.8

952.2

934.8

925.7

923.7

922.0

919.0

918.0

918.0

918.0

941.0

916.0

940.2

950.5

952.3

976.0

975.8

965.3

952.0

951.6

951.7

955.4

917.0

Feb.

916.0

946.0

947.0

916.0

913.0

912.0

912.0

912.0

944.6

912.0

956.0

912.0

942.0

912.0

912.0

912.0

919.0

927.0

918.0

917.0

927.0

971.0

969.0

938.6

929.2

978.6

974.6

962.0

940.0

-

-

Mar.

931.0

922.0

919.0

918.0

918.0

918.0

918.0

918.0

918.0

916. 0

916.0

916.0

916.0

944.0

916.0

916.0

9l'6.0

939.2

916.0

916.0

916.0

939.0

916.0

916.0

916.0

916.0

916.0

916.0

916.0

917.0

917.0

Apr.

917.0

916.0

916.0

916.0

916.0

916.0

918.0

916.0

916.0

916.0

916.0

912.0

912.0

912.0

912.0

935.0

962.3

972.8

962.2

964.5

977.2

967.2

961.3

951.0

967.6

965.0

946.0

925.0

916.0

914.0

-

May

914.0

914.0

914.0

916.0

920.0

961.6

978.0

978.0

977.0

975.6

975.1

975.2

976.0

976.7

995.2

994.1

1,003.0

997.0

994.0

997.5

1,003.0

1,003.0

1,003.0

1,003.0

1,015.0

1,040.0

1,057.0

1,063.2

1,062.0

1,059.8

1,059.0

June

1,057.0

1,057.0

1,057.5

1,061.5

1,058.0

1,058.0

1,059.0

1,062.5

1,064.5

1,064.5

1,063.0

1,066.0

1,067.0

1,067.1

1,064.0

1,060.5

1,060.0

1,059.0

1,057.0

1,055.0

1,058.0

1,066.0

1,066.0

1,060.0

1,054.0

1,045.0

1,033.5

1,021.0

1,010.0

1,001.0

-

July

987.0

952.0

938.0

333.0

930.0

940.0

937.0

923.0

929.0

929.0

930.0

928.0

928.0

928.0

928.0

926.0

926.0

928.0

931.0

930.0

928.0

929.0

929.0

929.0

929.0

931.0

933.0

932.0

926.5

926.0

926.0

Aug.

927.0

928.0

930.0

927.0

925.0

925.0

925.0

925.0

923.0

921.0

916.0

914.0

913.0

913.0

912.0

912.0

911.5

911.5

911.0

911.0

912.0

912.0

912.5

912.5

913.0

912.9

912.9

913.0

913.0

913.0

912.7

Sept.

913.0

913.0

912.6

912.7

912.5

912.0

912.0

912.0

912.0

909.5

909.5

909.5

909.0

909.0

908.5

908.5

908.3

908.3

908.5

908.5

909.0

909.0

908.0

908.0

918.0

974.2

975.5

975.9

975.6

975.0

-

Note.- Elevation below 902 feet (contents negligible) Oct. 11-15.

Monthly elevation and contents, water year October 1947 to September 1948

Date

Calendar year 1947

June 30. ............

Aug. 31.. ...........

Sept. 30. ............

Water year 1947-48

Elevation 

(feet)t

-

935 7

974.9

-

Contents 

(acre-feet)

252

-

154

1,810

-

Change in contents 

during month 

(acre-feet)

-1,950

+193

-3 140

+1,740

+1,700

t Elevation at 12 p.m. determined from 1 daily observation.
90 POYALLffP RIVER BASIN

White River near Buckley, Wash.

Location.- Water-stage recorder, lat. 47°09'05", long. 121°57'00", in SW^NW^- sec. 8, T. 

 19 M., R. 7 E., 0.7 mile upstream from Red Creek, 3 miles east of Buckley, and 8 miles

downstream from Clearwater River. Datum of gage is at mean sea level, datum of 1929. 

Drainage area.- 403 square miles. 

Keeoras available.- October 1938 to September 1948. October 1928 to November 1933 at site

3 miles upstream.

Average discharge.- 15 years, 1,312 second-feet. 

Extremes.- Maximum discharge during year, 7,580 second-feet Nov. 8 (elevation, 805.76

feet); minimum, 10 second-feet Sept. 26 (elevation, 796.92 feet); minimum daily, 249

second-feet Sept. 25.

second-feet). 

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

diversion. P]ow 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 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, In second-feet)

798.7 229 800.5 860 803.0 2,900 

779.0 307 801.0 1,140 804.0 4,250 

799.3 394 801.5 1,480 805.0 5,970 

799.6 487 802.0 1,880 806.0 8,020 

800.0 635 802.5 2,350

Discharge, in second-feet, water year October 1947 to September 1943

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25 

26

27 

28 

29 

30 

31

Oct.

675 

1,620 

3,400 

2,250 

1,340

1,280 

1,150 

930 

938 

910

810 

742 

786 

765 

1,020

1,790 

2,100 

2,900 

6,000 

4,570

3,400 

2,780 

2,280 

1,920 

1,640

1,430 

1,530 

1,410 

1,200 

1,300 

1,550

Nov.

2,250 

2,400 

2,250 

1,780 

1,710

1,960 

4,340 

6,380 

3,960 

3,400

3,670 

2,960 

3,140 

2,900 

2,670

2,500 

2,400 

2,960 

2,670 

2,450

2,060 

1,750 

1,550 

1,440 

1,480

2,200 

2,500 

2,350 

2,060 

1,880

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wat

endar year 1947

er year 1947-48

Dec.

2,020 

1,920 

2,060 

2,060 

1,800

1,560 

1,630 

1,380 

1,260 

1,280

1,300 

1,170 

1,440 

1,840 

1,670

1,710 

2,150 

2,560 

2,450 

2,200

1,790 

1,570 

1,440 

1,480 

1,440

1,440 

1,520 

1,670 

1,370 

1,670 

1,440

Jan.

1,710 

2,620 

2,560 

2,300 

1,790

2,020 

3,120 

3,080 

2,500 

2,250

1,880 

1,590 

1,440 

1,340 

1,260

1,170 

1,140 

1,110 

1,060 

1,050

992 

1,040 

738

1,38U 

1,380

1,560 

1,070 

1,010 

829 

1,090 

965

Feb.

885 

803 

776 

835 

765

720 

720 

742 

710 

720

776 

676 

599 

720

835

860 

1,320 

1,590 

1,340 

1,140

1,470 

3,020 

2,670 

2,040 

2,060

4,020 

3,400 

2,670 

2,090

Observed

Discharge in 

second-feet

Maximum

6,000 

6,380 

2,560

6,870

3,120 

4,020 

1,710 

2,400 

6,750 

4,900 

3,140 

1,340 

1,140

6,750

Minimum

675 

1,440 

1,170

487

738

39S 

742 

788 

1,200 

3,140 

1,140 

810 

249

249

Mean

1,820

2,601 

1,687

1,625

1,582 

1,413

i . oeo

1,445 

2,901 3,91i-' 

1,538 

991 

692

1,802

Mar.

,710 

,520 

,300 

,170 

,080

,080 

,050 

,020 

992 

938

910 

885 

910 

854 

860

835 

810 

781 

. 788 

742

868 

,600 

,200 

,110 

,110

,020 

992 

,050 

,240 

,270 

,170

Runoff 

in 

acre-feet

111,900 

154,800 

103,700

1,176.000

97,280 

81,270 

65,190 

85,990 

178,400 

233,000 

94,590 

60,920 

41,160

1,308,000

Apr.

1,110 

1,110 

1,050 

992 

938

885 

835 

810 

810 

835

885 

835 

788 

810 

1,030

2,010 

l,88u 

2,200 

2,020 

1,790

2,220 

2,400 

2,300 

2,150 

2,150

2,100 

1,880 

1,670 

1,480 

1,380

May

1,300 

1,200 

1,410 

1,590 

1,790

2,720 

3,370 

2,960 

2,620 

2,400

2,200 

2,150 

2,250 

1,620 

1,970

2,120 

1,770 

2,720 

2,150 

2,180

3,140 

3,530

3,530 

3,530 

3,670

3,950 

5,070 

6,750 

5,600 

4,410 

4,250

Change In

in Mud 

Mountain 

Reservoir 

(acre-feet)

+368 

-223 

-88

-1,950

-78 

+193 

-190 

-17 

+13,790 

-10,570 

-3,140 

-88 

+1,740

+1,700

June

3,950 

3,810 

3,810 

4,060 

3,950

4,570 

4,570 

4,570 

4,730 

4,900

4,900 

3,810 

3,810 

3,810 

3,810

3,810 

3,810 

3,670 

3,670 

3,670

3,670 

3,810 

3,810 

3,810 

3,670

3,670 

3,530 

3,400 

3,270 

3,140

July

,140 

,450 

,970 

,920 

,710

,870 

,840 

,630 

,480 

,520

,480 

,380 

,340 

,340 

,340

,340 

,380 

,550 

,480 

,410

,380 

,340 

,300 

,200 

,140

,140 

,340 

,440 

,270 

,270 

,300

Aug.

,340 

,300 

,240 

,200 

,080

1,110 

965 

965 

965 

965

965 

938 

938 

938 

1,020

885 

860 

885 

860 

835

810 

860 

860 

938 

1,050

965 

992 

1,110 

1,050 

965 

860

Sept.

810 

810 

860 

788 

720

698 

698 

720 

720 

720

720 

720 

720 

742 

655

585 

555 

538 

538 

539

520 

675 

635 

538 

249

362 

1,140 

1,050 

938 

788

Adjusted for change In 

reservoir contents

Runoff 

in 

acre-fee

Dis-charge in 

second- feet

. . Per 

1 Mean square 

mile

112,300 1,826 4.53 

154,600 2,598 6.45 

103,600 1,685 4.18

1,175,000 1,623 4.03

97,200 1,581 3.92 

81,460 1,416 3.51 

65,000 1,057 2.62 

85,970 1,445 3.59 

192,200 3,126 7.76 

222,400 3,738 9.28 

91,450 1,487 3.6a 

60,830 989 2.45 

42,900 721 1.79

1,310,000 1,804 4.48

Runoff

inches

5.22 

7.19 

4.82

54.64

4.52 

3.79 

3.02 

4.00 

8.94 

10.35 

4.25 

2.83 

2.00

60.93

Note.- Shifting-control method used Dec. 6 to Jan. 7, Feb. 26 to May 6.
PUYALLUP RIVER BASIN 

Stuck River near Sumner, Wash.

91

Location.- Water-stage recorder, lat. 47°15'00", long. 122°14'35", in NEijSWv sec. 1, T. 

2U u., R. 4 E., 3 miles north of Sumner and 4-| miles upstream from mouth.

Records available.- January 1945 to September 1948.

Extremes.- Maximum discharge during year, 7,950 second-feet Oct. 19 (gage height, 57.36 

feet); minimum, 59 second-feet Oct. 1.

1945-48: 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 period of no gage-height record or shifting

control, which are fair. Water diverted above gage to Lake Tapps for Dieringer power 

plants. High flow regulated by Mud Mountain Reservoir.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

61 

88 

1,920 

817 

455

Z45 

273 

175 

168 

180

156 

148 

148 

151 

168

£99 

1,630 

3,400 

5,980 

4,920

3,400 

1,830 

961 

394

228

330 

205 

220 

180 

185 

1,100

Nov.

3,140 

2,480 

815 

430 

272

289 

2,090 

6,360 

4,270

2,270

2,650 

1,560 

2,90O 

1,310 

970

628

481 

1,060 

970 

790

468 

506 

468 

185 

181

452 

1,000 

815 

565 

302

Dec.

449 

412

526 

449 

272

259 

272

259 

237 

224

230 

210 

235 

274 

255

259 

585 

1,310 

1,310 

915

449 

557 

980

2,170 

2,020

1,680 

255 

284 

535 

540 

269

Jan.

377

890 

1,280 

1,310 

695

526 

1,590 

3,260 

1,420 

1,120

84O 

394 

289 

264 

237

229 

214 

209 

182 

167

162 

172 

191 

185 

184

184 

178 

175 

175 

175 

178

Feb.

169 

159 

164 

172 

155

145 

144

160 

272 

182

345 

167 

158 

163 

237

279 

361 

282 

233 

210

286 

1,740 

1,860 

1,470 

938

4,060 

3,030 

1,590 

975

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-4

Mar.

412 

316 

257 

243

228

233 

252 

284 

246 

226

220 

210 

1,540 

822 

250

233 

218 

226 

241 

218

371 

672 

302 

252 

302

243

216 

201 

205 

198 

191

Apr.

185 

224 

241 

203 

198

187 

182 

177 

184 

181

191 

167 

164 

163 

171

487 

526 

650 

526 

377

475 

890 

740

628 

650

565 

377

302 

289 

264

Secondfoot-days

30,415 

40,677 

18,681

231,196

17,451 

20,106 

10,028 

10,564 

47,075 

82,270 

8,390 

3,692 

2,716

292,065

May

257

233 

284 

286 

377

908 

1,420 

970 

628 

487

345 

330 

1,800 

1,380 

1,280

1,750 

1,420 

2,270 

1,980 

1,930

2,320 

1,450 

1,520 

1,520 

1,670

1,840 

2,830 

4,100 

4,260 

2,750 

2,480

Maximum

5,980 

6,360 

2,170

8,160

3,260 

4,060 

1,540 

890 

4,260 

5,630 

l,51u 

154 

112

6,360

June

4,100 

4,100 

4,100 

3,920 

2,170

2,890 

3,040 

3,040 

5,080 

5,630

5,070

2,290 

2,230 

2,110 

2,170

2,170 

2,000 

2,000 

1,940 

2,060

2,540 

2,350 

2,290 

2,170 

2,060

1,940 

2,230 

1,640 

1,510 

1,430

July

1,510 

1,060 

588 

290

232

287 

280 

241 

192 

182

176 

178 

167 

167 

161

159

165 

176 

198 

194

182 

178 

169 

163 

150

141 

156 

188 

161 

154 

145

Minimum

61 

181 

210

52

162 

144 

191 

163 

233 

1,430 

141 

99 

70

61

Aug.

154 

154

143 

140 

138

145 

131 

123 

126 

119

119 

119 

116 

121 

124

126 

99 

110 

115 

110

105 

100 

100 

100 

105

110 

110 

110 

110 

105 

105

Mean

961 

1,356

603

633

563 

693 

323 

352 

1,519 

2,742 

271 

119 

90.5

798

Sept.

f!03 

f!03 

107

112 

103

98 

93 

93 

88 

98

95 

99 

98 

95 

96

95 

92 

90 

87 

85

83 

80 

78 

76 

74

70 

75 

80 

85 

85

Runoff in 

acre-feet

60,330 

80,680 

37,050

458,600

34,610 

39,880 

19,890 

20,950 

93,370 

163,200 

16,640 

7,320 

5,390

579,300

Peak discharge (base 6,900 sec. -ft.).- Oct. 19 (1:30 p.m.) 7,950 sec. -ft.; Nov. 8 (12:30 p.m.)

6,940 Sec.-ft.

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Aug. 18-31, Sept 17-30; discharge computed on basis of records for 

nearby streams. Shifting-control method used Ocf. 23 to Nov. 7, Mar.22 to Apr. 15.
PUYALLUP RIVER BASIN

Greenwater River- at Greenwater, Wash.

Location.- Water-stage recorder, lat. 47°09'15", long. 121°38'00", in NW£KVl£ sec. 11, T.

 19 tJ. , R. 9 E., 1 mile upstream from mouth, 1 mile east of Greenwater, and 17 miles 

east of Buckley.

Drainage area.- 74 square miles.

Records available.- May 1929 to September 1948. September 1911 to August 1912 (fragmentary), published as Greenwater River near Enumclaw.

Average discharge.- 19 years (1929-48), 196 second-feet.

Extremes.- Maximum discharge during year, 1,890 second-feet May 28 (gage height, 5.52

 feet); minimum, 37 second-feet Oct. 1 (gage height, 2.20 feet).

1911-12, 1929-48: Maximum discharge, 4,140 second-feet Dec. 9, 193J (gage height, 

9.24 feet, site and datum then in use), from rating curve extended above 1.100 secondfeet; minimum, 23 second-feet Oct. 7, 1934 (gage height, 2.06 feet).

Remarks.- Records good except those below 80 second-feet, which are fair, and those for 

periods of no gage-height record, which are poor. No diversion or regulation.

Revisions.- W 832: Drainage area.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Feb. 11-17, May 21 to Sept. 30)

2.1 34 2.9 160 4.2 759 

2.3 54 3.2 246 4.6 1,060 

2.5 80 3.5 360 5.0 1,380 

2.7 116 3.8 507 5.5 1,800

Discharge, in second feet, water year October 1947 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.

37 

137 

200 

122 

110

100 

96 

94 

90 

86

82 

76 

76 

72 

78

130 

220 

400 

507 

475

369 

300 

267 

230 

211

194 

176 

170 

160 

168 

181

Nov.

250 

264 

264 

253 

240

304 

780 

964 

650 

737

1,000 

738 

689 

618 

507

425 

496 

594 

564 

491

420 

378 

346 

319 

315

507 

576 

530 

470 

434

Dec.

434 

405 

439 

415 

396

369 

348 

323 

308 

278

264 

250 

300 

267 

260

281 

378 

465 

475 

425

356 

300 

267 

246 

240

230 

243 

256 

250 

227 

214

Jan.

253 

352 

348 

310 

280

270 

330 

290 

260 

230

215 

200 

190 

185 

180

175 

170 

170 

165 

160

155 

160 

220 

290 

260

230 

210 

195 

130 

170 

160

Feb.

155 

150 

145 

140 

135

130 

130 

130 

130 

125

118 

118 

114 

116 

116

US 

131 

148 

122 

118

131 

300 

253 

206 

233

470 

396 

296 

246

Month Secondfoot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Hay 

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

5,614 

15,123 

9,909

91 , 201

"uary

st ................... ....

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

6,963 

5,120 

4,200 

7,229 

18,740 

22,409 

5,697 

2,860 

2,164

ter year 1947-48 ..... .... 106,028

Mar.

217 

194 

170 

160 

155

150 

150 

140 

130 

125

125 

118 

116 

114 

112

110 

106 

106 

105 

97

106 

151 

135 

126 

122

118 

118 

131 

165 

168 

160

Maximum

507 

1,000 

475

1,000

352 

470 

217 

475 

1,760 

996 

340 

120 

120

1,760

Apr.

148 

146 

144 

139 

133

129 

122

116 

118

122 

118 

114 

114 

153

289 

352 

348 

331 

356

444 

475 

439 

405 

415

360 

311 

281 

253

236

May

214 

197 

208 

220 

243

378 

46E 

420 

396 

352

292 

292 

352 

34'8 

327

360 

387 

392 

392 

470

637 

717 

689 

766 

996

1,180 

1,460 

1,760 

1,590 

1,220 

1,020

Minimum

37 

240 

214

37

155 

114 

97 

114 

197 

378 

120 

76 

59

37

June

940 

932 

964 

908 

857

886 

964 

972 

964 

932

996 

893 

815 

710 

612

630 

724 

570 

606 

606

940 

886 

689 

630 

558

496 

449 

415 

387 

378

Mean

504 

320

250

225 

177 

135 

241 

605 

747 

184 

92.3 

72.1

290

1948

July

340 

311 

283 

270 

260

267 

23'3 

217 

20? 

183

17fl 

173 

16R 

163 

153

15' 

15' 

170 

158 

151

146 

142 

139 

135 

129

126 

148 

155 

135 

124 

120

Per 

square 

mile

2.43 

6.81 

4.32

3.38

3.04 

2.39 

1.82 

3.26 

8.18 

10.1 

2.49 

1.25 

.974

3.92

Aug.

120 

116 

116 

108 

105

112 

105 

99 

94 

92

90 

87 

90 

92 

101

94 

87 

84 

82 

82

79 

76 

76 

82 

87

84 

84 

89 

84 

84 

79

Sept.

78 

76 

76 

76 

75

73 

73 

71 

69 

68

68 

65 

63 

63 

63

63 

63 

63 

62 

60

59 

63 

64 

62 

59

75 

120 

106 

101 

87

Runoff

Iiches

2.82 

7.60 

4.98

45.84

3.50 

2.57 

2.11 

3.63 

9.42 

11.26 

2.86 

1.44 

1.09

53.28

Acre-feet

11,140 

30,000 

19,650

180,900

13,810 

10,160 

8,330 

14,340 

37,170 

44,450 

11,300 

5,670 

4,290

210,300

Peak discharge (base, 500 sec.-ft.).- Nov. 7 (12 p.m.) 1,140 sec.-ft.; Nov. 11 (3 to 6 a.m.) 1,100 

ec.-ft.; May 2B (4:30 p.m., 6:30 p.m.) 1,890 sec.-ft.

Note.- No gage-height record Oct. 5-18, Jan. 4 to Feb. 10, Mar. 4-15; discharge computed on basis 

f records for Green River near Palmer, and near Lester.
PUYALLUP RIVER BASIN 93

Clark Creek at Puyallup, Wash.

Location.- Water-stage recorder, lat. 47°10'30", long. 122°19'00", in NE^-SE^- sec. 32, T. 

2U H., R. 4 £., in Puyallup, a quarter of a mile upstream from East Branch and 3 miles 

upstream from mouth.

Records available.- February 1946 to May 1948 (discontinued).

Extremes.- Maximum discharge during period October 1947 to May 1948, 27 second-feet Mar. 

21 (gage height, 1.37 feet); minimum, 16 second-feet Dec. 9 (gage height, 1.14 feet).

1946-48: Maximum discharge, that of Mar. 21, 1948; minimum, 10 second-feet Feb. 13, 

14, 1946.

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

No diversion or regulation.

Discharge, In second-feet, water year October 1947 to September 1948

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.

21 

19.5 

19.5 

19.5 

19.5

19.5 

19.5 

19.5 

19.5 

19

19 

19 

19 

19 

19

19 

19 

19 

18 

18

18 

18 

18 

18 

18

19 

19 

19 

20 

19.5 

19.5

Nov.

19.5 

19.5 

19.5

19.5 

19.5

19.5 

19.5 

19.5 

19.5 

19

19 

19 

19 

20 

20

20 

20 

20 

20 

20

19 

19 

19 

19 

19

19 

18 

18 

18 

18

Dec.

18 

18 

18 

19.5 

18.5

18 

17.5

17 

16.5 

17

19.5 

21 

21 

21 

20

20 

20 

20 

21 

19.5

19 

18.5 

18 

17.5 

17

16.5 

17 

17 

16.5 

17 

17

Jan.

19 

19.5 

19 

19.5 

19.5

19.5 

19 

19 

18,5 

20

19.5 

19 

18 

18 

18

18 

18

17 

17 

17.5

18 

18 

18 

18 

18

18 

17.5 

18 

18.5 

18.5 

18.5

Feb.

18 

18 

18 

18 

18

18 

18 

18 

18 

18

18 

18 

18 

18 

18.5

19 

19.5

18 

18 

18

18 

19.5 

18 

17.5 

19

19.5 

18.5 

17.5 

17

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Th

lendar year 1947

e period ............. 

Mar.

17 

17 

17 

17

17

17.5 

17.5 

17.5 

17.5 

17.5

17.5 

17.5 

17.5 

17 

17

17.5 

17.5 

17.5 

17.5 

17.5

20 

22 

20 

19.5 

19

18.5 

18.5 

18 

18

18 

18

Apr.

18 

18.5 

18.5 

13.5 

18.5

18.5 

18.5 

18.5 

19 

18.5

18.5 

18.5 

18.5 

18.5 

18.5

18.5 

19 

18.5 

18.5 

18.5

ia.5

18,5 

18.5 

19.5 

19.5

19 

19 

19 

19 

19

Secondf oo t -days

590 

577.5 

572

6,954.5

571.5 

527.5 

556 

560 

593.5

-

May

19 

19 

19.5 

19.5 

20

22 

19.5 

19.5 

19.5 

19

19.5 

19.5 

19.5 

19.5 

19.5

19.5 

19.5 

19.5 

19.5 

19.5

19 

19 

19 

19 

18

18 

18 

18 

18 

18 

18

Maximum

21 

20 

21

22

20 

19.5 

22 

19.5 

22

-

-

June July

Minimum

18 

18 

16.5

15

17 

17 

17 

18 

18

-

Aug.

Meat

19.0 

19.2 

18.5

19.1

18.4 

18.2 

17.9 

18.7 

19.1

-

Sept.

Runoff In 

acre -feet

1,170 

1,150 

1,130

13,800

1,130 

1,050 

1,100 

1,110 

1,180

9,020

Note.- No gage-height record Oct. 7 to Nov. 2, Nov. 12 to Dec. 2, May 19-31; discharge computed on 

basis of recorded range of stage and general information.
DUWAMILH RIVKR BASIN

Green River near Lester, Wash.

Location.- Water-stage recorder, lat. 47°12'30", long. 121°33'20", In NE^S^i sec. 20, T. 

20 N., 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 1948.

Extremes.- Maximum discharge during year, 3,660 second-feet Nov. 8 (gage height, 9.00 

feet); minimum, 37 second-feet Oct. 1 (gage height, 3.3U feet).

1945-48: Maximum discharge, 3,200 second-feet probably 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 those for periods of doubtful or no gage-height record, 

which are pDor. No diversion or regulation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

3.2 30 4.0 126 5.1 397 7.0 1.58O 

3.4 47 4.2 163 5.5 545 7.5 2,050 

3.6 70 4.5 226 6.O 805 8.0 2,550 

3.8 96 4.8 304 6.5 1,160 8.6 3,210

Discharge, in second-feet, water year October 1947 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.

38 

449 

1,040 

517 

384

310 

258

222

191

171 

155 

150 

142 

154

220 

527 

905 

1,700 

1,340

884 

637 

525 

435

378

340

304 

290 

2?3 

276 

322

Nov.

456 

497 

509 

482 

445

554

2,050 

3,100 

1,770 

al,800

a2,100 

al.300 

al,300

31,100

3840

3680 

9880 

al.100 

940

723

580 

494 

431 

391 

402

991 

1,040 

787 

627 

541

Dec.

537 

509 

494 

449 

411

381 

353 

328 

307 

284

273 

C66 

390 

497 

490

545

632 

739 

684 

558

467 

400 

365 

359

368

368 

384 

421 

414 

387 

359

Jan.

378 

525 

471 

424 

371

359 

478 

438 

375

340

307

273 

250 

236 

222

211 

204 

200 

194 

189

185 

198

308 

40O 

362

316 

282 

260 

243 

228 

213

M°nth foot

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr: 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary . ... . .

TC

h . . ......

r

st ........................

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

Feb.

204 

194

187 

179 

171

161 

157 

157 

157 

148

140

135 

133 

137

150

146 

171 

260 

245 

219

242 

814 

F18 

456 

458

1,010 

844 

603

486

ond-

-days

3,731 

8,910 

3,419

4,368

9,440 

8,982 

8,710 

7,451 

8,349 

6,652 

5,194 

2,725 

1,955

ter year 1947-48 .......... 175,518

Mar.

417 

368 

325 

296 

273

260 

250 

240 

228 

215

208 

202 

198 

196 

196

194 

191 

194

185

179

219 

462 

368

313

284 

290 

346 

456 

431 

397

Maximum

1,700 

3,100 

739

3,100

525 

1,010 

463 

1,200 

3,210 

1,580 

316 

107 

124

3,210

Apr.

375 

356 

343 

316 

293

271 

253 

240

243

260

282

268 

255

276 

456

1,010 

975 

838 

812 

926

,200 

,200 

,080 

,120 

,040

781 

608 

f!7 

453 

404

May

371 

346 

400 

545

608

1,150 

1,320 

1,010 

898 

751

684 

717 

805 

763 

723

870 

975 

926 

857 

1,260

1,760 

1,720 

1,360 

1,490 

2,000

2,350 

2,600 

3,210 

2,500 

1,800 

1,580

June

1, 

1, 

1,

1,'

1,

Minimum Mean

38 443 

391 964 

266 433

36 423

185 305 

133 310 

179 281 

240 582 

346 1,237 

353 888 

104 168 

67 87.9 

44 65.2

38 480

540 

540 

580 

28O 

120

280 

440 

440 

320 

120

120 

905 

734 

623 

554

603

728 

653 

576

586

975

926 

763 

637 

585

475 

421 

397 

378 

353

1948

July

316 

284 

26C 

245 

231

243 

231 

211 

198 

189

179 

169 

161 

155 

150

144 

140 

142 

137 

133

124 

120 

118 

113 

109

106 

124 

133 

116 

109 

104

Per 

square 

mile

4.26 

9.27 

4.16

4.07

2.93 

2.98 

2.70 

5.60 

11.9 

8.54 

1.62 

.845 

.627

4.62

Peak discharge (base, 1,500 sec. -ft.).- Oct. 19 (10 a.m.) 1,900 sec. -ft.; Nov.

Aug.

102 

99 

96 

95 

95

107 

96 

91 

97 

86

d86 

d86 

d82 

d82 

d87

d84 

d81 

d78 

d74 

d76

d73 

d68 

d67 

d78 

d98

d92 

d98 

dlOO 

d98 

d94 

d89

Sept.

d81 

d74 

d81 

d76 

d73

d69 

d65 

62 

57 

56

55 

52 

51 

51 

55

52 

50 

46 

45 

44

45 

54 

57 

52

47

68 

124 

112 

106 

95

Runoff

Inches Acre-feet

4.91 27,240 

10.34 57,340 

4.80 26,620

55.22 306,200

3.38 18,720 

3.21 17,820 

3.11 17,280 

6.24 34,610 

13.71 76,060 

9.53 52,860 

1.86 10,300 

.97 5,400 

.70 3,880

62.76 348,100

8 (12:30 a.m. )

28 (3 p.m.; 3,430 sec.-ft. 

a No gage-height record; discharge computed on basis 

d Doubtful gage-height record; discharge computed or 

ords for stations near Palmer and near Black Diamond.

of records for station near Palmer.

basis of 2 discharge measurements and rec-
DUWAMISH RIVER BASIN

Green River near Palmer, Wash.

Location.- Water-stage recorder, lat. 47°17'4y", long. 121°49 I 20", in SW^NW^ sec. 20, T. 

21 N., R. 8 E., If miles upstream from diversion dam and intake of Tacoma water-supply 

system, 2^ miles downstream from North Pork, and 4 miles southeast of Palmer. Datum 

of gage is 912.6 feet above mean sea level (river-profile survey).

Drainage area.- 231 square miles.

Records available.- October 1931 to September 1948.

Average discharge.- 17 years, 1,035 second-feet.

Extremes.- Maximum discharge during year, 8,510 second-feet Nov. 7 (gage height, 13.29 

reet); minimum not determined, probably occurred sometime during period of doubtful 

gage-height record in September.

1931-48: Maximum discharge, 23,200 second-feet Dec. 11, 1946 (gage height, 19.95 

feet); minimum, 81 second-feet Sept. 4, 5, 1934.

Remarks.- Records good except those for periods of doubtful gage-height record, which 

are fair. No diversion or regulation.

Revisions (water years).- W 1062: 1932-34, 1935(M), 1938(M).

Rating tables, water year 1947-48 (gage height, in. .feet, 

and discharge, in second-feet)

Oct. 1 to Nov Nov. 8 to Sept. 30

4.3 157 5.6 690 9.O 2,840 4.2 144 5.3 575 8.0 2,130 

4.S 215 6.0 890 10.0 3,830 4.4 200 5.6 725 9.0 2,880 

4.7 281 6.5 1,160 11.4 5,55O 4.6 268 6.0 925 10.0 3,840 

5.0 400 7.0 1,440 4.8 346 6.5 1,180 11.0 5,020 

5.3 540 8.0 2,070 5.0 434 7.0 1,480 12.4 7,020

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

165 

1,140 

3,220 

1,840 

1,320

995 

815 

690 

690 

625

550 

495 

495 

481

723

1,240 

2,010 

2,760 

4,560 

3,490

2,600 

2,000 

1,680 

1,380 

1,190

1,080 

940 

940 

815 

890 

1,100

Nov.

1,690 

1,740 

1,680 

1,560 

1,440

1,890 

5,520 

6,950 

4,230 

4,410

5,040 

3,430 

3,430 

2,800 

2,410

2,060 

2,560 

3,240 

2,720 

2,200

1,780 

1,540 

1,360 

1,180 

1,510

2,480 

2,270 

1,920 

1,600 

1,600

Dec.

1,660 

1,660 

1,720 

1,600 

1,390

1,270 

1,150 

1,080 

1,000 

925

900 

900 

1,360 

1,600 

1,720

1,990 

2,800 

2,880 

2,480 

2,060

1,720 

1,480 

1,330 

1,300 

1,240

1,240 

1,300 

1,510 

1,510 

1,360 

1,300

Jan.

1,600 

2,410 

2,060 

1,780 

1,540

1,780 

2,600 

2,340 

1,850 

1,600

1,360 

1,180 

1,050 

975 

875

825 

775 

750 

700 

675

650 

700 

1,000 

1,270 

1,150

1,020 

900 

825 

775 

725 

700

Feb.

650 

610 

590 

575 

551

508 

499 

508 

499 

480

452 

434 

425 

480 

675

595 

1,100 

1,480 

1,150 

975

1,260 

3,530 

2,560 

1,920 

2,310

4,060 

3,060 

2,270 

1,780

u +u Second 

Month foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Maro 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

her .......................

lendar year 194 

ary

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

1 .........................

st ........................

embe r .....................

42,919 

78,230 

47,435

25,797

38,440 

35,986 

30,236 

46,660 

77,580 

55,255 

15,107 

9,146 

7,936

ter year 1947-48 .......... 484,930

Mar.

1,540 

1,330 

1,150 

1,050 

975

950 

900 

BIS 

825 

775

750 

700 

700 

675 

675

675 

650 

675 

625 

615

896 

1,850 

1,330 

1,100 

1,080

975 

975 

1,080 

1,330 

1,300 

1,210

Maximum

4,560 

6,950 

2,880

6,950

2,600 

4,060 

1,850 

2,970 

5,150 

2,800 

825 

398 

625

6,950

Apr.

1,120 

1,100 

1,080 

975 

900

850 

775 

750 

750 

850

950 

875 

825 

850 

1,180

2,480 

2,410 

2,200 

2,060 

2,200

2,480 

2,560 

2,410 

2,640 

2,970

2,340 

1,850 

1,600 

1,390 

1,240

May

1,120 

1,050 

1,390 

1,720 

1,920

3,220 

3,330 

2,640 

2,340 

2,060

1,850 

1,850 

1,990 

1,850 

1,720

1,990 

2,060 

2,060 

1,920 

2,270

2,880 

2,880 

2,480 

2,480 

3,240

3,630 

4,170 

5,150 

4,280 

3,240 

2,800

June

2,720 

2,640 

2,720 

2,410 

2,130

2,130 

2,480 

2,480 

2,340 

2,130

2,200 

1,920 

1,660 

1,420 

1,270

1,330 

1,540 

1,390 

1,270 

1,540

2,800 

2,410 

1,990 

1,660 

1,420

1,240 

1,120 

1,020 

975 

900

Minimum Mean

165 1,384 

1,180 2,608 

900 1,530

154 1,167

650 1,240 

425 1,241 

615 975 

750 1,555 

1,050 2,503 

900 1,842 

310 487 

230 295 

160 265

160 1,325

Peak discharge (base, 6,000 sec. -ft.).- Nov. 7 (ll D .m. ) 8,510 sec. -ft

July

825 

750 

700 

675 

650

700 

700 

615 

561 

537

518 

499 

471 

448 

434

420 

407 

402 

398

398

376 

355 

350 

338

310

310 

430 

457 

389 

350 

334

Per 

square 

mile

5.99 

11.3

6.62

5.05

5.37 

5.37 

4.22 

6.73 

10.8 

7.97 

2.11 

1.28 

1.15

5.74

Aug.

318 

310 

298 

258 

272

368 

314 

290 

280 

270

270 

269 

260 

260 

276

270 

260 

250 

240 

250

240 

230 

230 

298 

380

342

380 

398 

372 

355 

338

Sept.

295 

268 

330 

302 

290

260 

250 

230 

220 

210

200 

190 

190 

190 

190

180 

180 

170 

170 

160

h207 

270 

270 

220 

180

280 

625 

541 

471 

407

Runoff

Inches Acre feet

6.91 85,130 

12.59 155,200 

7.64 94,090

68.55 844,600

6.19 76,240 

5.79 71,380 

4.87 59,970 

7.51 92,550 

12.49 153,900 

8.90 109, 600 

2.43 29,960 

1.47 18,140 

1.28 15,740

73.07 961,900

h Computed from staff-gage reading. 

Note.- Doubtful gage-height record Aug. 8-14, 16-23, Sept. 5-20, 22-26; discharge 

basis of 2 discharge measurements and records for station near Black Diamond.
96 DUWAMISH RIVER BASIN

Green River near Black Diamond, Wash.

Location.- Water-stage recorder, lat. 47°17 I 00", long. 122*03'30", in NW£ sec. 28, T. 21 N., 

K. b M., at highway bridge three-quarters of a mile upstream from Newaukum Creek and 

3 miles southwest of Black Diamond. Datum of gage is 158.5 feet above mear sea level 

(river-profile survey).

Drainage area.- 286 square miles.

Records availablbe.- October 1939 to September 1948 (discontinued;.

Extremes.- Maximum discharge during year, 8,730 second-feet Nov. 8 (gage height, 6.89 feet); 

minimum, 136 second-feet Oct. 2 (gage height, 1.85 feet).

1939-48: Maximum discharge, 21,100 second-feet Dec. 11, 1946 (gage height, 11.24 

feet); minimum observed, 56 second-feet Sept. 25, 26, 1940 (gage height, 1.39 feet).

Remarks.- Records good. City of Tacoma diverts about 85 second-feet from river near Palmer, 

several miles above station, for municipal use. No regulation.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Nov. 7 Nov. 8 to Sept. 30

2.0 197

2.3 357

2.6 560

3.0 

3.5 

4.0

885

1,420

2,090

4.5 

5.0 

5.6

2,990' 

4,100 

5,510

1.8 

2.0 

2.2 

2.4 

2.7

137

241

358

489

710

3.0 

3.3 

3.6 

4.0 

4.5

960

1,260

1,620

2,240

3,180

5.0 

5.5 

6.0 

6.6

4,210

5,300

6,470

7,960

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

202 

380 

3,550 

2,020 

1,460

1,110 

885 

747 

714 

690

590 

532 

510 

517 

602

1,320 

2,020 

3,100 

4,790 

4,220

2,990 

2,170 

1,870 

1,540 

1,300

1,190 

1,070 

1,030 

942 

952 

1,140

Nov.

1,740 

1,870 

1,800 

1,670 

1,550

1,830 

5,470 

7,720 

4,860 

4,420

5,640 

4,000 

3,790 

3,380 

2,880

2,370 

2,510 

3,580 

3,280 

2,600

2,100 

1,800 

1,570 

1,410 

1,360

2,330 

2,700 

2,260 

1,900 

1,720

Dec.

1,840 

1,760 

1,940 

1,790 

1,610

1,440 

1,370 

1,27U 

1,230 

1,130

1,090 

1,060 

1,330 

1,850 

1,800

2,160 

2,980 

3,280 

2,980 

2,310

1,940 

1,720 

1,530 

1,500 

1,450

1,410 

1,470 

1,690 

1,750 

1,580 

1,520

Jan.

1,700 

2,880 

2,510 

2,220 

1,900

2,090 

2,790 

2,790 

2,260 

1,990

1,760 

1,530 

1,370 

1,280 

1,200

1,140 

1,080 

1,040 

987 

960

1,010 

1,060 

1,220 

1,540 

1,480

1,300 

1,180 

1,100 

1,030 

978 

924

Feb.

879 

846 

806 

798 

774

734 

702 

702 

710 

688

650 

628 

620 

620 

838

854 

1,200 

1,620 

1,490 

1,240

1,220 

3,460 

2,980 

2,160 

2,330

4,320 

3,580 

2,600 

2,050

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1947

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

ter year 1947-48 .......................

Mar.

1,760 

1,540 

1,370 

1,270 

1,180

1,150 

1,120 

1,080 

1,030 

978

951 

897 

888 

870 

854

838 

822

830 

814 

790

894 

1,930 

1,480 

1,270 

1,240

1,120 

1,090 

1,190 

1,410 

1,420 

1,320

Apr.

1,270 

1,260 

1,220 

1,150 

1,070

1,000 

960 

897 

897 

942

1,070 

1,010 

969 

960 

1,140

2,440 

2,600 

2,330 

2,160 

2,220

2,600 

2,700 

2,600 

2,790 

3,280

2,600 

2,040 

1,730 

1,520 

1,360

Secondfoot-days

46,153 

86,110 

53,780

464,864

48,299 

42,099 

35,396 

50,785 

80,250 

53,958 

16,629 

9,489 

7,934

530,882

May

1,270 

1,180 

1,350 

1,850 

1,960

3,280 

3,680 

2,980 

2,600 

2,240

1,960 

1,910 

1,990 

1,960 

1,840

1,940 

2,100 

2,100 

1,960 

2,210

2,880 

3,080 

2,700 

2,600 

3,280

3,680 

4,100 

4,970 

4,530 

3,280 

2,790

Maximum

4,790 

7,720 

3,280

7,720

2,880 

4,320 

1,930 

3,280 

4,970 

2,790 

870 

409 

575

7,720

June

2,700 

2,600 

2,700 

2,350 

2,020

2,050 

2,370 

2,420 

2,240 

2,040

2,070 

1,850 

1,580 

1,370 

1,240

1,220 

1,470 

1,390 

1,240 

1,290

2,790 

2,510 

1,990 

1,650 

1,410

1,260 

1,150 

1,050 

987 

951

July

870 

814 

774 

726 

702

742 

734 

695 

635 

612

575 

560 

532 

503 

489

482 

462 

456 

449 

435

416 

396 

384 

371 

352

340 

390 

524 

449 

396 

364

Minimum

202 

1,360 

1,060

102

924 

620 

790 

897 

1,180 

951 

340 

236 

162

162

Aug.

346 

334 

322 

310 

304

358 

352 

304 

287 

281

275 

270 

258 

275 

281

292 

264 

252 

247 

252

247 

241 

236 

247 

403

371 

358 

409 

403 

364 

346

Mean

1,4F9 

2,8TO 

1,735

1,274

1,5E8 

1,452 

1,142 

1,6?3 

2,569 

1,799 

536 

3C6 

264

1,450

Sept.

310 

298 

310 

310 

292

270 

252 

241 

236 

225

219 

203 

198 

187 

187

187 

182 

177 

172 

162

162 

198 

292 

230 

192

203 

560 

575 

482 

422

Runoff In 

acre-feet

91,540 

170,800 

106,700

922,000

95,800 

83,500 

70,210 

100,700 

159,200 

107,000 

32,980 

18,820 

15,740

1,053,000

Peak discharge Cbase, 5,800 see.-ft.).- Nov. 8 (2 a.m.) 8,730 sec.-ft.,- Nov. 11 ( 2 >nd 4 a.m.) 

62,300 sec.-ft.
DUWAMISH RIVER BASIN 97

Green River near Auburn, Wash.

Location.- Water-stage recorder, Int. 47 a 18'15", long. 122°12'10", in lot 3, sec. 17, T. 

2T~Y77~H. 5, 1} miles east of AuDiu-n arid 2 miles downstream from Big Soos Creek. Datum of gage Is at mean sea level:, datum of 1929.

Drainage area.- 386 square miles.

Records available.- August 1936 to September 1948.

Average discharge.- 12 years, 1 ; 222 second-feet.

Extremes.- Maximum discharge during year, 8,960 second-feet Nov. 8 (elevaticn, 62.21 feet); 

minimum, 223 second-feet Oct. 2 (elevation, 54.94 feet).

1936-48: Maximum discharge, 22,000 second-feet Dec. 11, 1946 (elevation, 68.16 

feet); minimum, 113 second-feet Sept. 25, 1940; minimum elevation, 54.21 feet Sept. 

1-3, 1945.

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

control, which are good. City of Tacoma diverts about 85 second-feet frote river near 

Palmer, several miles above station, for municipal use. No regulation.

Rating table, water- year 1947-48, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

55.0 248 56.5 1,420 60.0 5,560 

55.3 419 57.0 1,920 61.0 7,020 

55.6 650 58.0 3,000 62.0 8,620 

56.0 970 59.0 4,220

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

287 

286 

3,290 

2,230 

1,570

1,240 

1,010 

a880 

a800 

a740

a700 

a600 

a580 

594 

666

1,420 

2,070 

3,120 

4,610 

4,480

3,360 

2,560 

2,120 

1,770 

1,520

1,380 

1,240 

1,240 

1,060 

1,060 

1,330

Nov.

2,070 

2,230 

2,180 

2,020 

1,870

2,070 

5,200 

8,130 

5,420 

4,480

6,120 

4,350 

3,840 

3,480 

3,120

2,620 

2,620 

3,600 

3,360 

2,780

2,280 

1,970 

1,770 

1,570 

1,520

2,280 

2,720 

2,340 

2,020 

1,820

Dec.

2,070 

2,020 

2,180 

2,020 

1,820

1,670 

1,620 

1,520 

1,420 

1,330

1,330 

1,280 

1,420 

2,020 

1,920

2,230 

3,000 

3,480 

3,240 

2,620

2,230

2,020 

1,820 

1,870 

1,720

1,670 

1,720 

2,020 

2,120 

1,920 

1,870

Jan.

2,120 

3,480 

3,240 

3,130 

2,620

2,780 

3,480 

3,600 

2,890 

2,670

2,500 

2,120 

1,920 

1,720 

1,620

1,520 

1,420 

1,330 

1,380 

1,240

1,240 

1,240 

1,380 

1,670 

1,670

1,470 

1,330 

1,240 

1,200 

1,150 

1,110

Feb.

1,060 

997 

954 

962 

930

858 

826 

882 

938 

882

826 

794 

778 

770 

1,100

1,240 

1,620 

1,920 

1,820 

1,520

1,620 

3,820 

3,720 

E,720 

2,890

5,280 

4,610 

3,480 

2,720

Month

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

Move 

Dece

Ca

janu 

Febr 

Marc 

Aprl 

May.

July 

Augu 

Septc

Wat

iiber. ...................

Lendar year 1947 

iry. ... .

jary. ...................

..................

at. .................. .

;mber. ..................

er year 1947-48 .......................

Mar.

2,340 

2,120 

1,820 

1,670 

1,570

1,520 

1,530 

1,520 

1,420 

1,330

1,240 

1,200 

1,200 

1,150 

1,120

1,120 

1,070 

1,080 

1,070 

1,080

1,200 

2,720 

2,120 

1,720 

1,770

1,620 

1,520 

1,520 

1,720 

1,770 

1,620

Apr.

1,570 

1,620 

1,620 

1,470 

1,380

1,280 

1,240 

1,150 

1,150 

1,200

1,380 

1,280 

1,240 

1,200 

1,330

2,560 

2,890 

2,620 

2,400 

2,400

2,720 

2,890 

2,780 

2,890 

3,720

2,890 

2,340

2,020 

1,820 

1,720

Secondfoot-days

49,813 

91,850 

61,190

539,739

61,370 

52,537 

47,460 

58,770 

88,470 

66,160 

21,906 

12,509 

11,239

623.274

Peak discharge (base, 6,000 sec. -ft.).- Nov. 8 (6:30 a

May

1,470 

1,330 

1,420 

2,070 

2,180

3,480 

4,090 

3,240 

2,780 

2,560

2,230 

2,180 

2,230 

2,230 

2,070

2,120 

2,340 

2,340 

2,180 

2,280

3,000 

3,240 

2,890 

2,620 

3,340

3,840 

4,220 

5,420 

5,560 

4,090 

3,480

Maximum

4,610 

8,130 

3,480

8,620

3,600 

5,280 

2,720 

3,720 

5,560 

3,340 

1,080 

485 

850

June

3,240 

3,120 

3,240 

2,890 

2,500

2,500 

2,780 

2,780 

2,620 

2,450

2,450 

2,340 

2,070 

1,820 

1,620

1,570 

1,870 

1,820 

1,620 

1,670

3,240 

3,000 

2,450 

2,020 

1,770

1,570 

1,420 

1,330 

1,240 

1,150

July

1,080 

1,020 

962 

930 

890

979 

1,050 

962 

882 

818

794 

746 

698 

674 

634

610 

594 

570 

618 

602

562 

539 

515 

500 

470

463 

515 

666 

578 

515 

470

Aug.

456 

448 

434 

426 

412

47O 

463 

419 

400 

393

386 

374 

360 

386 

f393

f393 

374 

343 

331 

337

331 

326 

320 

337 

485

448 

456 

485 

463 

441 

419

Minimum Mean

286 1,607 

1,520 3,032 

1,280 1,974

166 1,479

1,110 1,900 

770 1,812 

1,070 1,531 

1,150 1,959 

1,380 2,854 

1,150 2,205 

463 707 

320 404 

258 375

258 1.703

Sept.

386 

380 

386 

40O 

360

348 

337 

326 

308 

297

287 

287 

28E 

277 

282

282 

277 

272 

263 

258

258 

331

448 

334 

303

354 

714 

850 

730 

602

Runoff in 

acre-feet

98,800 

182,200 

121,400

1,071,000

121,700 

104,200 

94,140 

116,600 

175,500 

131,200 

43,450 

24,810 

22,290

1.236.000

.ra.) 8,960 sec. -ft.; Nov. 11 (5:30 a.m.)

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

station near Black Diamond.

f Computed on basis of partly estimated gage-height record. 

"ote -- Shifting-control method used May 29 to Sept. 30.
DUWAMISH RIVER BASIN

Snow Creek near Lester, Wash.

Location.- Water-stage recorder, lat. 47° 15', long. 121°24', in NW^NWtr sec. 3, T. 20 N., 

R. 11 K., a quarter of a mile upstream from mouth and 5j miles northeast of Lester.

Drainage area.- 11.9 square miles.

Records available.- October 1945 to September 1948.

Extremes.- Maximum discharge during year, 930 second-feet Nov. 8 (gage height, 4.39 feet), 

from rating curve extended above 450 second-feet; minimum, 7.4 second-feet Oct. 1 

(gage height, 1.64 feet).

1945-48: Maximum discharge, 988 second-feet Dec. 11, 1946, from re ting curve extended above 160 second-feet; maximum gage height, that of Nov. 8, 19*7; minimum, 4.5 

second-feet Oct. 17-19, 1946.

Remarks.- Records fair. No diversion or regulation.

Rating table, water year 1947-48, except period of backwater from const-fiction work 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Dec. 23 to May 23)

1.6 7.2 2.8 114 

1.8 8.4 3.1 189 

2.0 9.6 3.4 294 

2.2 23 3.7 438 

2.5 60 4.0 619

Discharge, in second feet, water year October 1947 tc 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.

7.6 

91 

150 

54 

35

27 

23 

21 

?.\ 

21

19

16.5 

15 

13.5 

18

32 

112 

156 

208 

104

50 

30 

21 

16 

11.5

11 

9.6 

9.5 

9.5 

9.7 

15

Nov.

30 

30 

36 

32 

26

45

351 

601 

172 

166

248 

151 

136 

112 

94

80 

116 

167 

138 

96

76 

63 

53 

47 

66

118 

92 

66 

53 

44

Dec.

46 

42 

39

34 

30

26 

24 

22 

21 

20

20 

21 

48 

50 

70

74 

90 

98 

81 

65

54 

47 

52 

54 

60

60 

63 

68 

62 

56 

52

Jan.

53 

63 

50 

41 

35

31 

35 

30 

25 

22

20 

16.5 

14 

12.5 

11

10.5 

9.9 

9.9 

9.7 

9.6

9.6 

9.9 

19 

23 

21

17.5 

16 

14 

12.5 

11.5 

10.5

Month ^

Octo 

Hove 

Dece

Ca

Jann 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

ffa

lendar year 194 

ary

h.... ..................... i

.......................... 5

st ........................

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

Feb.

10 

9.9 

9.9 

9.9 

9.6

11 

17.5 

21 

20 

18

18 

17.5 

16.5 

17.5 

17.5

16.5 

21 

33 

30 

27

28 

83 

68 

57 

60

134 

123 

89 

70

endways

337,4 

505 

549

458.8

673.1 

063.3 

071.5 

285 

380 

323 

824,5 

305.9 

307.2

ter year 1947-48 .......... 24,624.9

Peak discharge (base, 350 sec. -ft.).- Nov

May 28 (IS m. ) 593 secl-ft.' ' L~

Mar.

59

50 

42 

39

35

33 

31 

30 

27 

26

23 

22 

21 

21 

21

20 

19 

19 

18 

17. b

35 

70 

52 

46 

41

38 

36 

39 

47 

49 

45

Maximum

208 

601 

98

601

63 

134 

70 

189 

530 

329 

59 

12.5 

20

601

Apr.

44 

42 

40

36 

35

32 

31 

28 

28 

27

27 

26 

25 

27 

48

118 

127 

121 

123

146

189 

186 

141 

141 

125

106 

80 

71 

62 

53

May

49 

45 

59 

87 

98

192 

208 

156 

127 

108

94 

94

104 

100 

94

125 

154 

167 

178 

294

407

307 

227 

2SZ 

357

422 

472 

530 

362

263 

248

June

259 

278 

294 

227 

214

267 

329 

325 

298 

252

243 

195 

158 

125 

108

132 

144 

112 

102 

125

217 

183 

144 

110 

92

81 

78 

76 

80 

70

1948

July

59 

50 

45 

41 

38

41 

39 

33 

32

31

28 

27 

26 

24 

24

23 

22 

21 

21 

19

18 

17.5 

16.5 

16 

15

15 

21 

18 

16 

14 

13.5

Per 

Minimum Mean square 

mile

7.6 43.1 3.62 

26 117 9.83 

20 50.0 4.20

7.0 61.5 5.17

9.6 21.7 1.82 

9.6 36.7 3.08 

17.5 34.6 2.91 

25 76.2 6.40 

45 206 17.3 

70 177 14.9 

13.5 26.6 2.24 

9.2 9.87 .829 

8.9 10.2 .857

7.6 67.3 5.66

. 8 (1 a.m.) 930 sec. -ft.; May 21 (2

Aug.

12.5 

11.5 

11 

11 

11

12.5 

10.5 

9.9 

9.7 

9.5

9.4 

9.4 

9.4 

9.4 

9.5

9.4 

9.4 

9.3 

9.4

9.3

9.2 

9.2 

9.2 

9.4 

9.4

9.2 

9.4 

9.7 

9.4 

9.4 

9.4

Sept.

9.3 

9.2 

9.4 

9.3 

9.2

9.2 

9.1 

9.1 

9.1 

9.0

8.9 

8.9 

8.9 

09.0 

C9.0

C9.0 

C9.0 

09.0 

09.0 

c9.0

9.4 

9.5 

9.6 

9.6 

9.5

10.5 

20 

18 

16 

13.5

Runoff

Inches

4.18 

10.95 

4.84

70.19

2.10 

3.32 

3.35 

7.14 

19.94 

16.64 

2.58 

.96 

.96

76.96

Acre-feet

2,650 

6,950 

3,070

44,540

1,340 

2,110 

2,130 

4,530 

12,650 

10,560 

1,640 

607 

609

48,850

a.m. ) 466 sec. -ft.;

c Backwater from construction work; discharge estimated.
DUWAMISH RIVER BASIN 99

Friday Creek near Lester, Wash.

Location.- Water-stage recorder, lat. 47 0 13', long. 121°27', in SE^NW^ sec. 18, T. 20 N., 

K. HE., 0.4 mile upstream from mouth and 2 miles northeast of Lester.

Drainage area.- 4.6 square miles.

Records available.- October 1945 to September 1948.

Extremes. - Maximum discharge during year, 219 second-feet Nov. 10; maximum gage height, 

4.15 I'eet Nov. 7; minimum discharge, 3.8 second-feet Oct. 1.

1945-48: Maximum discharge, 497 second-feet Dec. 11, 1946 (gage height, 4.90 feet); 

minimum, 2.2 second-feet Sept. 29, 30, 1946 (gage height, 2.28 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 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.8

38

54

27

18.5

16

13.5

12. 5

12

11

9.8

9.2

9.2

8.9

11

15

38

52

90

65

41

30

25

19

17

16

14.5

14

13

14

16

Nov.

K3

23

22

20

18

38

133

166

88

128

143

83

80

61

45

34

53

70

54

40

32

26

24

22

27

68

64

50

40

34

-

Dec.

41

38

34

30

26

25

23

22

21

20

19

21

35

35

36

41

54

59

48

37

31

27

26

27

28

28

31

32

32

29

27

Jan.

31

43

32

28

24

23

29

25

21

20

17.5

16

15

14.5

14

13.5

13

13

12.5

12

12

14.5

23

22

17.5

15.5

14

13

12

11.5

11.5

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

ii« nay v ...........................

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

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

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

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

Water year 1947-48 ..........

Feb.

11

10.5

10

10

9.5

9.8

8.6

8.6

8.6

8.1

7.7

7.7

7.7

8.1

8.6

8.4

13.5

20

14.5

13

16

55

30

22

29

64

47

34

26

_

-

Secondfoot-days

733.9

1,709

983

10,645.4

584.5

526.9

500

870

1,946.5

2,192

433.5

185.9

157.8

10,823

Mar.

23

20

18.5

17.5

16.5

15.5

15.5

14.5

13.5

13

13

12.5

12

12

12.5

12

12

11.5

11.5

11

15.5

25

18.5

17

16

15

16.5

22

25

22

20

Maximum

90

166

59

166

43

64

25

60

173

115

27

7.4

10

173

Apr.

19

18.5

17.5

16

15

14 .-5

14

13.5

14.5

15.5

17

15.5

15

17.5

29

49

43

37

37

43

53

52

50

60

55

39

30

26

23

21

-

May

20

18.5

23

32

38

68

65

55

53

43

38

37

40

38

36

42

47

45

43

57

75

72

60

69

96

112

141

173

128

94

88

Minimum

3.8

18

19

2 . 80

11.5

7.7

11

13.5

18.5

32

7.7

4 8

4:'.Z

3.8

June

89

95

101

83

79

95

115

115

110

96

101

82

69

59

54

62

68

57

53

61

101

84

69

56

54

42

39

36

35

32

Mean

23.7

57.0

31.7

29.2

18.9

18.2

16.1

29.0

62.8

73.1

14.0

6.00

5.26

29.6

July

27

25

23

21

21

22

20

18

16.5

15.5

15

14.5

14

13

12.5

12

12

11.5

10.5

10.5

10

9.5

9.2

8.4

8.1

7.9

11.5

10

8.6

8.1

7.7

Per 

square 

mile

5.15

12.4

6.89

6.35

4.11

3 . 96

6 . 30

13.7

15.9

3^04

1.30

1.14

6.43

Aug.

7.4

7.2

6.8

6.6

7.0

7.4

6.6

6.0

6.0

5.9

5.7

5.5

5.7

5.7

6.6

5.7

5.5

5.2

5.2

5.0

5.0

4.8

4.8

6.2

5.9

5.3

6.2

7.2

6.0

5.9

5.9

Sept.

5.7

5.3

6.2

5.7

5.3

5,2

5.0

5.0

4.8

4.7

4.7

4.5

4.4

4.5

5.0

4.5

4.5

4.4

4.2

4.2

4.2

5.0

4.8

4.5

4.4

6.2

10

7.9

6.8

6.2

Runoff

Inches Acre-feet

5.93 1,460

13.82 3,390

7.95 1,950

86 .08 21 , 120

4.73 1,160

4.26 1,050

4.04 992

7.03 1,730

15.74 3,860

17.72 4,350

3.50 860

1.50 369

1.28 313

87.50 21,480

Peak discharge (base, 150 sec.-ft.).- Nov. 7 (12 p.m.) 210 sec.-ft.; Nov. 10 (8 p.m.) 219 sec.-ft. 

May 28 (11:30 a.m.) 196 sec.-ft.

Mote.- Shifting-control method used Oct. 1 to Nov. 7, Nov. 26 to Jan. 24, Apr. 15 to Sept. 30.
100 DUWAMISH RIVER BASIN

Smay C-'eek near Lester, Wash.

Location.- Water-stage recorder, lat. 4? Q 15'40", long. 121°33'50", in SIVj pea. 3@ , f, 81 

H. , K. 10 E., 3j miles upstpeam. from mouth and 4j miles northwest of tester,

Drainage area.- 11.3 square miles,

Records available.- September 1946 to September 1948,

Extremes.- Maximum discharge during year, 412 second-feet probably Nov. 8 (gage height, 

4.2Y reet, from recorded range in aiage); minimum not determined, occurred either 

Oct. 1 or sometime during period of backwater from construction dam Sept. 16-21.

1946-48: Maximum discharge not determined, probably occurred Dec. 11, 1946, when 

recorder was dislodged by high water; minimum, 6.3 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 gage-height record, faulty intake 

action, and backwater from construction dam, which are poor. No diversion or 

refftilntion. regulation.

Rating table, water year 1947-48, except period of backwater 

(gage height, in feet, and discharge, in second-feet)

2.4 

2.6 

2.8 

3.0 74

3.2 

3.5 

3.8 

4.1

109

178

262

355

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

45

111

80

60

50

44

39

38

34

31

28

28

26

33

42

59

151

205

158

120

90

70

58

46

41

36

33

30

33

37

Nov.

54

54

51

48

45

90

200

350

200

323

277

230

200

150

110

80

110

170

120

90

72

62

54

47

64

110

100

80

70

62

-

Dec.

84

70

61

54

51

47

45

41

39

36

35

40

80

81

82

88

100

130

105

82

70

62

62

59

58

60

68

74

71

04

60

Jan.

71

94

80

71

62

65

90

77

66

59

54

49

44

41

39

36

35

33

31

31

29

30

34

36

36

34

33

32

31

30

29

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

-later year 1947-48 ..........

Feb.

28

27

26

26

24

23

23

22

22

22

20

17.5

17.5

21

22

22

27

32

31

30

35

84

71

60

70

122

111

85

70

_

-

Secondfoot-days

1,867

3,673

2,059

18,442.5

1,482

1,191.0

1,029

1,678

3,825

3,393

944.5

481.0

466.0

22,088.5

Mar.

60

54

47

42

40

38

35

33

31

30

29

28

27

26

26

25

24

24

23

22

30

39

33

32

31

30

31

32

35

36

36

Maximum

205

350

130

350

94

122

60

113

283

178

52

17.5

29

350

Apr.

36

36

35

33

31

30

29

29

29

30

30

28

28

29

38

60

70

70

70

72

90

101

100

109

113

94

77

68

59

54

May

51

49

64

79

85

120

128

111

98

88

an

79

85

87

84

87

94

94

88

100

128

137

128

e!53

el97

e211

e239

283

239

189

i?°

Minimum

11

45

35

9.0

29

17.5

22

28

49

56

18.5

13.5

11

11

June

168

168

178

153

13S

146

168

168

158

142

139

122

103

94

84

87

90

84

77

87

132

124

103

90

80

71

65

62

59

56

llean

60.2

122 "

66.4

50.5

47.8

41.1

33.2

5S.9

12V

113

35.5

15.5

15.5

60.4

W*

52

49

46

44

42

45

42

39

3634 '

34

32

31

29

29

28

26

25

24

23

22

22

21

20

22

21

20

19

18.5

Per 

square 

mile

5.33

10.8

5.88

4.47

4.23

3.64

2.94

4.95

10.9

10.0

2.70

1.37

1.37

5.35

Aug.

17-5

17

17

li

17

17.5

17

16

16

16

15. '

Sept.

15

14

15

14

14

13.5

13

13

13

13

13

15 12.5

15.5

15.5

16

15.5

15

15

15

14

14

14

14

15.5

14

13.5

15

16

15.5

15.5 15"

12.5

12

12.5

cli

c!2

c!2

ell

ell

cl2

19

18.5

17.5

17

22

29

25

24

24

Ru>qff~

Inches

6.14

12.09

6.78

60.7(3

4/88

3.92

3.39

5152

12.59

11.1?

3.'il

1J58

1.53

72.70

"Acre-feet

3,700

7,290

4,680

56,580

2,940

2,360

2,040

3,330

7.590

6,730

1,870

954

924

43,810

Peak discharge (base, ISO sec.-ft.).- Oct . 19 (11 a.m.) 216 sec.-ft.; probably Nov. 8 (time unknown) 412 sec7-ft.; probably Nov. 18 (time and discharge unknown); May 28 (2 p.m.) 308 sec.-ft.

c Backwater from construction dam.

e Intake action faulty; discharge computed on basis of partly estimated gage-height record.

Note.- No gage-height record Oct. 21 to Nov.9, Nov. 12 to Dec. 21; discharge computed on basis of 

recorded range in stage and records for Friday Creek near Lester.
DUWMISH RIVER BASIN 101

Charley Creek near Eagle Gorge, Wash.

Location.- Water-stage recorder, lat. 47°15 I 00", long. 121°47iOO", in SW^-NW^ sec. 3, T. 

2U H., R. 8 E., 300 feet downstream from Beaverdam Lake Creek, lj miles south of Eagle 

Gorge, and if miles upstream from mouth.

Drainage area.- 10.6 square miles.

Records available.- September 1946 to September 1948.

Extremes.- Maximum discharge during year, 559 second-feet Nov. 7 (gage height, 4.40 feet), 

from rating curve extended above 270 second-feet by logarithmic plotting; minimum, 13 

second-feet Oct. 1 (gage height, 1.33 feet).

1946-48: 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 good except those for periods of no gage-height record, which are poor. 

Mo diversion or regulation.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6

7 

8 

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 

102

257 

149 

114

82 

62 

52 

52

47

41 

37 

41 

38 

62

114 

167 

176 

284 

189

141 

110 

95 

76 

67

59 

55 

56 

50 

59 

74

Nov.

128 

121 

113 

102 

97

194 

425 

316 

202 

276

274 

173 

170 

170 

140

120 

130 

230 

190 

130

100 

80 

70 

60

54-

80 

150 

100 

90 

70

Dec.

76 

300 

110 

130 

100

80 

70 

66 

60

56

54 

52 

60 

80 

100

120 

140 

150 

130 

100

88 

76 

70 

73 

70

71 

79 

89 

89 

80 

78

Jan.

150 

180 

150 

110 

95

130 

180 

150 

110

90

76 

60 

52 

46 

43

41 

40 

38 

36 

35

35 

48 

90 

100 

80

62 

56 

52 

48 

45 ' 42

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

mber .....................

lendar year 1947 

ary

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

ter year 1947-48. .........

Feb.

40 

39 

37 

35 

33

32 

31 

30 

30 

30

29 

2S 

29 

35 

42

54 

90 

130 

80 

60

100 

250 

180 

150

190

300 

180 

130 

100

Secondfoot-days

2,921 

4,555 

2,697

25,249.5

2,470 

2,495

2^562 

3,866 

2,690 

920 

1,125 

1,042

28,957

Peak discharge (base, 300 sec. -ft.).- Oct

sec. -ft.; Nov. 7 (12 m.) 559 sec. -ft.; Nov.

Mar.

78 

62 

50 

45 

39

41 

42 

42 

38 

35

33 

31 

32 

33 

33

33 

33 

32 

31 

30

110 

160 

70 

58 

50

47 

49 

57 

75 

74 

71

Maximum

284 

425 

150

425

180 

300 

160 

196 

276 

328 

42 

84 

103

425

Apr.

67 

66 

61 

55 

50

46 

43 

41 

40 

48

58 

49 

45 

46 

68

142 

127 

117 

111 

113

126 

124 

136 

170 

196

121 

95 

81 

65 

55

May

52 

46 

70 

84 

98

276 

222 

154 

130 

118

110 

104 

103 

100 

94

102 

108 

110 

104 

108

126

126 

118 

118 

139

147 

164 

206 

169 

136 

124

Minimum

13 

54 

52

13

35 

29 

30 

40 

46 

42 

20 

23 

19

13

June

120 

115 

114 

99 

90

90

94 

87 

78 

69

82 

65 

65 

56 

53

56 

55 

51 

48 

148

328 

183 

117 

94 

76

64 

56 

49 

46 

42

Mean

94.2 

152 

87.0

69.2

79.7 

86.0 

52.1 

85.4 

125 

89.7 

29.7 

36.3 

34.7

79.1

July Aug .

40 

37 

34 

34 

34

37 

38 

34 

31 

30

28 

28 

27 

26 

25

25 

24 

22 

23 

22

22 

22 

22 

20 

20

20 

40 

42 

40 

33 

35

Per 

square 

mile

8.89 

14.3 

8.21

6.53

7.52 

8.11 

4.92 

8.06 

11.8 

8.46 

2.80 

3.42 

3.27

7.46

32 

31 

30 

28 

31

34 

29 

28 

26 

26

26 

25 

26 

25

27

24 

24 

23 

26 

24

24 

24 

23 

63 

84

67 

71 

66 

59 

53 

46

Sept.

42 

40 

43 

38 

37

34 

31 

30 

29 

27

25 

24 

24 

22 

22

21 

20 

20 

19 

19

20 

38 

28 

24 

22

38 

103 

83 

65 

54

Runoff

Inches

10.25 

15.98 

9.46

88.58

8.67 

8.75 

5.66 

8.99 

13.56 

9.44 

3.23 

3.95 

3.66

101 . 60

3 (2 a.m.) 381 sec. -ft.; Oct. 19 (3 a.m., 4 

10 (7 to 12 p.m.) 316 sec. -ft.; probably Feb

Acre-feet

5,790 

9,030 

5,350

50,070

4,900 

4,950 

3,200 

5,080 

7,670 

5,340 

1,820 

2,230 

2,070

57,430

a.m.) 316 

. . 26 (time

unknown) 395 sec.-ft.; May 6 (4 p.m.) 316 sec.-ft.; June 21 (1:30 a.m.) 367 see.-ft.

Note.- No gage-height record Nov. 13 to Dec. 23, Jan. 1 tc Mar. 24; discharge computed on basis of 

1 discharge measurement, recorded range in stage, and records for Bear Creek near EaiTle Gorge and 

Friday Creek near Lester.
102 DUWAMISH RIVER BASIN

Bear Creek near Eagle Gorge, Wash.

Location.- Water-stage recorder, lat. 47°17'00", long. 121°48'10", in NW£ sec. 28, T. 21 

N., K. 8 E., a quarter of a mile upstream from mouth and 2^ miles northwest of'Eagle 

Gorge.

Drainage area.- 4.1 square miles.

Records available.- September 1946 to September 1948.

Extremes.- Maximum discharge during year, 275 second-feet Nov. 7 (gage height, 3.29

feet), from rating curve extended above 50 second-feet by logarithmic plotting; minimum, 3.3 second-feet Oct. 1 (gage height, 1.66 feet).

1946-48: Maximum discharge, 605 second-feet Dec. 10 or 11, 1946 (gage height, 

4.00 feet, from recorded range in stage), from rating curve extended atove 50 secondfeet by logarithmic plotting; minimum, 0.1 second-foot Sept. 27-29, Oct. 3, and about 

Oct. 19, 1946.

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

No diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

58 

134 

70 

54

38 

28 

22 

25 

25

21 

18 

21 

20 

54

94 

124

103 

160 

78

60 

43 

39 

31 

27

24 

22 

22 

19 

22 

29

Nov.

60 

56 

52 

43 

37

66 

207 

155 

80 

83

121 

78 

74 

74 

57

48 

53 

94 

83 

57

41 

32 

28 

24 

22

42 

63 

47 

37 

29

Dec.

31 

48 

48 

58 

47

37 

29 

27 

24 

a23

a22 

aZl 

a27 

a38 

a 46

a54 

a66 

368 

a56 

a47

a37 

a31 

27 

30 

29

28 

31 

48 

54 

42 

35

Jan.

72 

105 

66 

49 

39

85 

72 

48 

40

33 

26 

22

19.5 

17.5

16.5 

16 

15.5 

15 

14

14 

22

f, 

34

25 

19.5 

16 

15 

13 

12

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

ary

st ........................

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

ter year 1947-48 ..........

Feb.

11 

9.8 

9.4 

9.0 

8.2

8.2 

7.8 

7.8 

a7 

a6.5

a6 

a6 

5.8 

7.8 

14.5

17.5 

46 

58 

30 

21

43 

147 

75 

51 

120

197 

85 

48 

33

Secondfoot-days

1,488.3 

1,943 

1,209

9,596.3

1,099.5 

1,096.3 

733 

1,114.5 

1,136 

580. 6 

273.3 

239.7 

295.4

11,203.6

Peak discharge (base, 180 sec. -ft.).- Oct

Nov. 7 (6 p.m.) 275 sec. -ft.; Jan. 1 (8 p.m

Mar.

28 

22

18 

16 

13.5

15 

16 

16 

14.5 

13.5

12.5 

11.5 

12.5 

- 13 

13

13 

13 

13 

13 

12

61 

85 

40 

30 

28

25

26 

33 

39 

35 

32

Maximum

160 

207 

68

207

105 

197 

85 

105 

138 

90 

15 

15

207

Apr.

31 

31 

29 

24 

21

19 

17.5 

16.5 

16.5 

23

34 

25 

22 

22

34

70 

56 

45 

39 

40

47 

45 

58 

78 

105

57 

37 

28 

23 

21

May

20 

19 

31 

42 

48

138 

94 

57 

43 

36

30 

29 

29 

29 

27

29 

30 

29 

26 

26

31 

29 

25 

23 

25

25 

26 

42 

40 

33 

25

Minimum

3.3 

22 

21

1.3

12 

5.8 

11.5 

16.5 

19 

9.8 

4.7 

4.7

3.3

June

22

19 

16 

14.5 

13.5

12.5 

12 

11 

10 

9.8

12.5 

10.5 

11.5 

10 

9.8

11 

12 

11 

10.5 

36

90 

53 

37 

28 

22

19 

16 

14.5 

13.5 

12.5

Mean

48.0 

64.8 

39.0

26.3

35.5 

37.8 

23.6 

37.2 

36.6 

19.4 

8.82 

7.73 

9.85

3O.6

July

11. E 

11 

10 

10 

10

11

11. E 

11.5 

10 

10

9.0 

8.6 

8.2 

7.8 

7.4

7.4 

6.8 

6.4 

7.1 

6.4

5.8 

5.8 

5.5 

5.2 

4.7

5.2

14 

15 

11.5 

10 

9.0

Per 

square 

mile

11.7 

15.8 

9.51

6.41

8.66 

9.22 

5.76 

9.07 

8.93 

4.73 

2.15 

1.89

7.46

Aug.

8.6 

7.8 

7.4 

6.8 

7.1

9.0 

6.8 

6.4 

6.4 

5.8

5.5 

5.2 

5.8 

5.8 

6.1

5.8 

5.2 

5.2 

5.5 

5.2

4.9 

4.7 

4.7

10 

11.5

10.5 

14 

15 

13.5 

12.5 

11

Sept.

9.8 

9.8 

10.5 

10 

9.4

9.0 

8.2 

7.8 

7.1 

6.8

6.4 

6.1 

5.8 

5.5 

5.5

4.9 

4.7 

4.4 

4.2 

4.0

4.2 

11 

10 

8.2 

7.1

12.5 

41 

28 

19 

14.5

Runoff

Inches

13.50 

17.62 

10.97

87.05

9.97 

9.94 

6.65 

10.11 

10.30 

5.27 

2.48 

2.17

101.66

Acre-feet

2,950 

2,850 

2,400

19,030

2,180 

2,170 

1,450 

2,210 

2,250 

1,150 

542 

475

22,210

3 (l a.m.) 219 sec . -f t . ; Oct. 19 (4 a.m.) 223 sec. -ft.; 

. . .. ) 194, ,sec. .. -ft.; Feb. 22 (2 to 3 a.m.) 197 sec. -ft.;

Feb. 26 (8 a.m.) 250 sec.-ft.; Mar. 21 (10 p.m.) 2O7 sec.-ft.

a Ho gage-height record; discharge computed on basis of recorded range in stage and records for 

Snow Creek near Lester and Friday Creek near Lester.
DUWAMISH RIVER BASIN 103

Newaukum Creek near Black Diamond, Wash.

Location.- Water-stage recorder, lat. 47°16'30", long. 122°03'30", in SW£ sec. 28, T. 21 

N., R. 6 E., three-quarters of a mile upstream from mouth and 3| miles southwest of 

Black Diamond.

Drainage area.- 24.4 square miles.

Records available.- July 1944 to September 1948.

Extremes.- Maximum discharge during year, 528 second-feet Feb. 25 (gage height, 2.88 

reetj; minimum, 17 second-feet Oct. 1 (gage height, 1.25 feet).

1944-48: Maximum discharge, 803 second-feet Dec. 14, 1946 (gage height; 3.29 feet); 

minimum, 11 second-feet Oct. 11, 12, 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. Many small diversions 

above station for irrigation and domestic use. No regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

17

22

38

28

28

24

21

20

22

30

26

22

25

26

32

56

72

68

111

117

97

67

63

49

42

40

37

44

40

48

56

Nov.

170

95

111

88

78

85

159

120

85

93

85

75

85

74

152

103

88

95

85

75

67

61

58

55

59

85

71

63

58

72

Dec.

173

115

139

93

81

75

95

90

85

80

77

70

88

88

75

86

122

152

151

99

92

86

88

97

81

75

96

139

122

93

137

Jan.

213

272

203

288

177

243

260

196

137

199

207

129

109

99

92

88

83

80

77

74

72

78

81

83

74

68

65

63

64

65

61

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

61

60

60

64

60

55

55

74

90

74

65

59

58

61

150

204

205

120

90

88

202

304

221

148

309

277

177

134

109

-

-

Secondfoot-days

1,388

2,650

3,140

22,651

4,000

3,634

3,076

2,721

2,580

1,867

1,242

916

1,003

28,217

Mar.

103

101

88

81

74

92

115

132

99

85

81

75

78

74

74

75

68

75

75

67

124

271

160

113

175

113

95

86

81

75

71

Maximum

117

170

173

426

288

309

271

166

266

255

74

36

86

309

Apr

71

117

117

90

86

a 84

a75

a65

a73

a90

a95

74

70

64

70

166

151

105

86

77

72

74

78

104

150

97

85

81

83

71

-

May

67

64

92

86

119

266

163

111

93

97

88

85

81

75

70

68

74

67

63

64

60

56

54

54

50

48

49

95

90

71

60

Minimum

17

55

70

14

61

55

67

64

48

38

30

25

22

17

June

52

49

47

44

42

42

41

40

39

38

59

52

75

56

48

51

59

50

46

103

255

122

85

68

61

58

51

48

44

42

Mean

44.8

88.3

101

62.1

129

125

99.2

90.7

83.2

62.2

40.1

29 . 5

33.4

77.1

July

41

40

38

40

40

54

74

61

49

46

42

39

37

26

34

34

33

34

42

40

38

36

34

32

31

30

38

46

37

34

32

Per 

square 

mile

1.84

3.62

4.14

2.55

5.29

5.12

4.07

3.72

3.41

2.55

1.64

1.21

1.37

3.16

Aug.

31

31

30

29

30

36

32

32

31

28

27

27

28

28

29

27

27

26

26

25

26

27

26

33

34

30

33

36

32

30

29

Sept.

27

25

28

31

28

27

26

26

25

24

23

23

23

23

23

23

23

22

22

22

23

47

42

33

29

50

81

86

68

50

Runoff

Inches

2.12

4.04

4.79

34.53

6.10

5.54

4.69

4.15

3.93

2.85

1.89

1.40

1.53

43.03

Acre-feet

2,750

5,260

6,230

44,930

7,930

7,210

6,100

5,400

5,120

3,700

2,460

1,820

1,990

55,970

Peak discharge (base, 350 see.-ft.).- Jan. 4 (6 a.m.) 36O sec.-ft.; Feb. 16 (9 p.m.) 387 sec.-ft. 

Feb. 25 (5:45 p.m.) 528 sec.-ft.; Mar. 22 (1 a.m.) 48O sec.-ft.

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

nearby streams.

Note.- Shifting-control method used Nov. 16-30, Mar. 22 to June 21, July 13 to Sept. 27.

939922 O - 51 - 8
104 DIMAMISH 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 

Bl., K. 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 1948.

Extremes.- Maximum discharge during year, 496 second-feet Feb. 26 (gage height, 3.59 

reet); minimum, 28 second-feet Oct. 1 (gage height, 1.99 feet).

1944-48: Maximum discharge, 748 second-feet Dec. 15, 1946 (gage height, 4.22 

feet); minimum, 22 second-feet Aug. 30, Sept. 9, Oct. 21, 1944.

Remarks.- Records good. 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 1947 to September 1S48

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

33 

44

35 

34

32 

31 

31 

31 

33

33

31 

34 

35

46

95 

120

116 

158 

148

139 

120 

122 

113 

106

99 

97 

104 

99 

113 

126

Nov.

193 

206 

196 

199 

190

187 

190 

182 

173

176

176 

168 

168 

160 

176

179 

173 

185 

185 

179

171 

163 

158 

155 

155

163

158 

151 

143 

158

Dec.

206 

206 

206 

203 

187

179 

190 

193 

187 

182

187 

176 

176 

179 

171

176 

206 

212 

236 

219

209 

225 

219 

239 

232

219 

225 

270 

292 

267 

264

Jan.

319 

383 

415 

468 

464

468 

482 

473 

435

451

447 

415 

383 

355 

335

319 

299 

284 

274 

264

246 

246 

242 

239 

225

206 

196 

193 

190 

190 

176

Month

Ooto 

Nove 

Dece

Ca

Jam] 

Febr 

Marc 

Apri 

Hay 

June 

July 

Augu 

Sept

Ha

mber ......................

lendar year 1947 

ary

st . . ...... -

ember .

ter year 1947-48. .... ....

Feb.

176 

168 

165 

176 

176

163 

158 

179 

199 

190

171 

163 

158

160 

215

242 

288 

267 

246 

236

267 

288 

288 

278 

307

468 

427 

371 

339

Secondfoot-days

2,386 

5,216 

6,538

43,699

10,082 

6,929 

7,004 

5,433 

5,054 

3,394 

2,639 

1,751 

1,552

57,978

Mar.

315 

295 

270 

253 

239

236 

236 

239

219 

206

203 

196 

190 

185 

176

171 

165 

168 

160 

155

185 

347 

292 

260 

281

264 

246 

228 

219 

209 

196

Maximum

158 

306 

292

529

482 

468 

315 

312 

225 

165 

135 

65 

100

482

Apr.

187 

209 

303 

187 

187

179 

173 

168 

176 

187

203 

185 

176 

168 

165

190 

185 

179 

171 

165

163 

168 

173 

179 

213

190 

179 

176 

179 

171

May

163 

160 

179 

173 

173

225 

206 

190 

185 

193

187 

179 

190 

182 

171

165 

171 

155 

148 

146

139 

135 

130 

124 

122

118 

122 

160 

168 

158 

137

Minimum

28 

143 

171

27

176 

158 

155 

163 

118 

94 

63 

49 

39

28

June

126 

116 

115 

111 

107

104 

102 

99 

95 

94

116 

116 

124 

111 

102

102 

113 

104 

97 

122

165 

139 

128 

122 

120

118 

113 

109 

104 

100

Mean

77.0 

174 

211

120

325 

239 

226 

181 

163 

113 

85.1 

56.5 

51.7

158

July

97 

97 

97 

95 

95

111 

133 

118 

103 

10 )

95 

90 

85 

8? 

80

73

73 

75 

8? 

80

7S 

7J 

73 

71 

68

66 

73 

71 

70 

66 

63

Per 

square 

mile

1.43 

3.23 

3.91

2.23

6.03 

4.43 

4.19 

3.36 

3.02 

2.10 

1.58 

1.05 

.959

2.93

Aug.

63 

62 

63 

62 

62

65 

62 

58 

60 

58

57 

57 

55 

55 

57

57 

57 

54 

52 

51

51 

52 

49 

58 

60

52 

55 

57 

52 

49 

49

Sept.

46 

46 

49 

48 

45

48 

44 

42 

41 

41

41 

44 

41 

41 

44

44 

41 

41 

39 

39

39 

54 

63 

52 

48

68 

95 

100 

95 

73

Runoff

Inches

1.65 

3.60 

4.51

30.17

6.96 

4.78 

4.83 

3.75 

3.49 

2.34 

1.82 

1.21 

1.07

40.01

Acre-feet

4,730 

10,350 

12,570

86,690

20,OOO 

13,740 

13,890 

10,780 

10,020 

6,730 

5,230 

3,470 

3,080

115,000

Peak discharge (base, 400 see. -ft.).- Jan. 4 (4 p.m.) 486 sec. -ft.; Feb. 26 (5 p.m.) 496 sec. -ft.
LAKE WASHINGTON BASIN 105

North Fork Cedar River near Lester, Wash.

Location.- Watey=gtege reoorder, lat. 47°19'00", long. 121°29'30", in S? sec. 11, T. 21 

. 1Q i,, a.t falla If miles upstream from South Fork and 1\ miles nor*;h of Lester.

a " 8t8 stluar' e miles.

Records available.- October 1944 to September 1948.

Extremes.- Maximum discharge during year, 645 second-feet Oct. 19, May 28, f 'om rating 

curve extended above 3§Q ggeand-feet; maximum gage height, 6.21 feet Oct. 19; minimum 

discharge, 12 geggB^-feet Sept. 20, 21, 25, 26.

1944^48$ fHax.iauffl discharge, 1,600 second-feet Jan. 7, 1945 (gage height, 7.37 

feet), frew gating eur-ve extended above 200 second-feet; minimum, 8.2 second-feet 

, 19, 1946 (gage height, 1.53 feet).

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

fop periods of no gage-height record, which are poor. No diversion or regulation,

Rating table, water year 1947-48, except periods of shifting-control 

(gage height, in feet, and discharge, in second-feet)

1.7 12 2.7 44 4.5 249 

1.9 17 3.0 64 5.0 337 

2.1 22 3.3 88 5.5 440 

2.3 28 3.6 121 6.0 580 

2.5 35 4.0 173

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7

li 

18 

IS 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12.5 

178 

240 

129 

88

67 

53 

4! 

44 

40

58 

33 

S3 

58 

56

79 

175 

257 

415

202

141 

106 

89 

73 

6?

89 

SI 

£7 

49 

51 

84

Nov.

133 

117 

108 

90 

78

as

894 

30? 

ITS 

886

217 

150 

134 

104 

86

71 

87 

97 

84 

73

64 

55 

48 

44 

73

173 

136 

108 

87 

78

Dec.

83 

73 

67 

61 

88

47 

43 

39

se

35

34 

35 

55 

54 

55

61 

76 

82 

71 

63

53 

45 

44 

58 

63

63 

70 

73 

68 

63 

56

Jan.

55 

58 

13 

4S 

41

39 

40 

37 

34 

33

31 

29 

28 

26 

25

25 

24 

23 

22 

22

il 

2g 

28 

SO 

29

28 

28 

26 

26 

26 

24

Feb.

24 

E3 

23 

83 

23

23 

23 

22 

22 

21

20 

19 

19 

19 

21

20 

26 

31 

31 

31

40 

75 

67 

62 

70

85 

74 

64 

52

forays

Octc 

Move 

Deoe

CE

Jam 

Febi 

Man 

Apr! 

May 

June 

Julj 

Aug Sepi

W(

mber ...................... i

ilendar year 1947 

lary

,061.5 

,543 

,779

......... 26,262.1

h , . ...... ...... ,

1 ......................... i

r .......................... i

ISt ......-- .-....- . . ember . .

975 

,053 

819.0 

,497.5 

,702 

,100 

,639 

622.5 

509.0

Her year 1947-48 .......... 29,300.5

Mar.

44 

59 

36 

34 

31

30 

28 

26 

25 

24

23 

21 

21 

20 

19.5

18.5 

16 

18 

17. § 

16.5

26 

36 

31 

29 

28

26 

26 

26 

27 

27 

27

Maximum

415 

307 

83

415

58 

85 

44 

120 

550 

415 

120 

27 

28

550

Apr.

28 

28 

26 

26 

25

24 

23 

22

21 

21

21 

20 

19.5 

20 

28

59 

69 

67 

67 

74

102 

120 

113 

106 

91

74 

63 

54

45 

41

May

37 

35 

56 

70 

77

142 

156 

127 

109 

92

81 

84 

104 

101 

99

121 

137 

132 

123 

176

249 

249 

194 

225 

366

440 

490 

550 

356 

258 

266

June

283 

310 

346 

258 

258

337 

415 

415 

415 

356

370 

300 

270 

250 

210

220 

230 

220 

200 

300

400 

350 

260 

210 

180

150 

140 

150 

150 

147

July

120 

99 

90 

81 

73

90 

82 

71 

69 

67

62 

56 

53 

50 

47

45 

44

41 

39 

37

35 

33 

31 

28 

27

26 

34 

30 

28 

26 

25

Per 

Minimum Mean square 

mile

12.5 98.8 11.2 

44 118 13.4 

34 57 . 4 6 . 52

8.9 72.0 8.18

21 31.5 3.58 

19 36.3 4.12 

16.5 26.4 3.00 

19.5 49.9 5.67 

35 184 20.9 

140 270 30.7 

25 52.9 6.01 

15 20.1 2.28 

12 17.0 1.93

12 80-. 1 9.10

Peak discharge (base, 400 sec. -ft.).- Oct. 19 (2:30 a.m.) 645 sec. -ft.; Nov. 7

Aug.

24 

23 

22 

21 

21

26 

21 

21 

19.5 

19

18.5 

17.5 

19 

18 

20

17.5 

16.5 

16.5 

17 

15.5

15.5 

15.5 

15 

18 

21

21 

24 

27 

25 

24 

23

Sept.

21 

21 

23 

21 

19.5

18.5 

17.5 

17 

16.5 

15.5

15 

14.5 

14 

14

15

13.5 

13 

13 

12.5 

12

12.5 

15 

13.5 

13 

12.5

16.5 

28 

26 

24

21

Runoff

Inches Acre-feet

12.94 6,070 

14.97 7,030 

7.52 3,530

110.99 52,090

4.12 1,930 

4.45 2,090 

3 46 1,620 

6.33 2,970 

24.10 11,310 

34.23 16,070 

6.93 3,250 

2.63 1,230 

2.15 1.010

123.83 58,110

(9:30 p.m.) 465

see.-ft.; May

and discharge unknown).

Note. - No gage-height record Feb. 6-26, Jun'e 11-29; discharge computed on basis of recorded ranges 

n stage and records for Rex River near Cedar Falls. Shifting-control method used Feb. 29 to May 

5, July 6 to Sept. 30.
106 LAKE WASHINGTON BASIN

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

Location.- Water-stage recorder, lat. 47°20 I 40", long. 121°33'00", in SE^SE^ see. 32, T.

 yy N., 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 1948.

Extremes.- Maximum discharge during year, 1,250 second-feet Nov. 7, May 28; maximum gage

 height, 5.70 feet May 28; minimum, 30 second-feet Oct. 1, 2 (gage height, 2.83 feet).

1945-48: Maximum discharge, 1,940 second-feet Dec. 11, 1946 (gage height, 6.32 

feet); minimum, 20 second-feet Sept. 29, 30, Oct. 11-13, 15-19, 1946.

Remarks.- Records good. No diversion or regulation.

Rating table, water year 1947-48, except periods of Ice effect

(gage height, In feet, and discharge. In second-feet)

(Shifting-control method used Oct. 18 to Nov. 15)

2.8 27 4.0 282 

3.0 49 4.3 393 

3.2 77 4.6 523 

3.4 114 5.0 740 

3.7 189 5.6 1,170

Discharge, in second-feet, water year October 1947 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.

31 

342 

621 

347 

243

189 

154 

135 

128 

114

100 

89 

87 

80 

139

198 

447 

624 

919 

598

402 

303 

262 

215 

192

184 

165 

154 

137 

142 

208

Nov.

296 

279 

269 

246 

218

258 

698 

975 

562 

692

674 

456 

405 

321 

269

218 

275 

321 

279 

234

201

176 

154 

140 

177

343 

306 

262 

224 

209

Dec.

221 

204

189 

167 

154

142 

130 

121 

112 

104

100 

100 

147 

150 

170

195 

£72 

»303 

252 

212

181 

160 

152 

165 

167

167 

189 

209 

195 

176 

165

Jan.

176 

189 

165 

157 

140

137 

167 

144 

128 

119

110 

100 

92 

87 

82

77 

74 

71 

*68 

66

65 

68 

86 

92 

89

86 

82 

79 

77 

76 

71

Feb.

70 

66 

68 

64 

62

b60 

59 

b64 

64 

54

52 

50 

49 

57

66

59

77 

98 

96 

84

106 

249 

19E 

160 

173

*300 

266 

215 

181

Month foo°t ays

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

1 .........................

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

7,949 

0,137 

5,371

7,160

3,220 

3,164 

2,818 

5,047 

4,176 

6,289 

3,532 

1,520 

1,264

ter year 1947-48 .......... 74,487

Peak discharge (base, 1,000 sec. -ft.).- 0

Mar.

157 

137 

121 

110 

102

98 

92 

86 

80

76

71 

70 

68 

65 

52

61 

58 

59 

57 

56

97 

144 

112 

104 

98

92 

91 

94 

100 

98 

102

Maximum

919

97£ 

303

975

189 

300 

157 

350 

1,130 

884 

237 

65 

6d

1,130

Apr.

102 

104 

100 

94 

89

84 

80 

77 

77 

80

79 

76 

74 

79 

107

204 

227 

224 

224 

243

306 

343 

339 

350 

321

256 

212 

184 

165 

147

May

137 

128 

192 

243 

259

426 

451 

362 

314 

275

249 

249 

286 

289 

282

314 

339 

332 

317 

405

557 

598 

495 

552 

794

919 

1,010 

1,130 

905 

698 

669

Minimum

31 

140 

100

22

65 

49 

56 

74 

128 

289 

59 

38 

32

31

June

692 

734 

794 

635 

603

734 

870 

870 

884 

784

746 

582 

500 

418 

381

434 

438 

370 

358

461

728 

567 

456 

381 

332

310 

300 

314 

324 

289

Mean

256 

338 

173

184

104 

109 

90.9 

168 

457 

543 

114 

49.0 

42.1

204

1948

July

237 

204 

186 

173 

160

184 

176 

152 

142

135

128 

116 

110 

106 

104

100 

98 

94 

89

86

79 

74 

72 

66 

64

62 

79 

70 

65 

62 

59

Per 

square 

mile

10.1 

13.3 

6.81

7.24

4.09 

4.29 

3.58 

6.61 

18.0 

21.4 

4.49 

1.93 

1.66

8.03-

:t. 19 (3:30 a.m.) 1,170 sec. -ft.; No 

.; June 9 (4 p.m.) 1,090 sec. -ft.

Aug.

57 

54 

53 

52 

54

65 

53 

52 

49 

48

47 

45 

48 

47 

50

44 

42 

42 

44 

42

41 

39 

38 

44 

48

47 

54 

59 

56 

54 

52

Sept.

50 

49 

53 

49 

45

44

43 

41 

39 

39

38 

37 

36 

36 

39

35 

34 

33 

32 

32

32 

41 

38 

34 

32

44 

66 

64 

57 

52

Runoff

Indies

11.64 

14.84 

7.86

98.32

4.71

4.63 

4.13 

7.39 

20.76 

23.85 

5.17 

2.23 

1.85

109.06

t. 7 (10

Acre-feet

15,770 

20,110 

10,650

133,200

6,390 

6,280 

5,590 

10,010 

28,120 

32,310 

7,010 

3,010 

2,510

147,800

p.m.) 1,250

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
LAKE WASHINGTON BASIN

Cedar, River near Cedar Falls, Wash.

Location.- Water-stage recorder, lat. 47°22'20", long. 121°37'30", In SEiSV'j sec. 23, T. 

22 N. , R. 9 E., 2 miles upstream from Cedar Lake and 8 miles southeast of Cedar Falls.

Drainage area.- 41.8 square miles.

Records available.- October 1945 to September 1948.

Extremes.- Maximum discharge during year, 1,920 second-feet Nov. 7 (gage height, 6.73 

reec); minimum, 46 second-feet Oct. 1.

1945-48: Maximum discharge, 3,840 second-feet Dec. 14, 1946 (gage height, 9.81 

feet); minimum, 34 seoond-feet Sept. 29, Oct. 18, 19, 1946.

Remarks.- Records good. No diversion or regulation.

Rating tables, water year 1947-48 (gage height, in feet,

and discharge, In second-feet) 

(Shifting-control method used Oct. 1-2)

2.1 44 3.1 250 4.5 790 

2.3 68 3.4 346 5.0 1,020 

2.5 100 3.7 450 5.5 1,270 

2.8 166 4.0 570 6.1 1,570

Discharge, in second-feet, water year October 1947 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.

47 

395 

1,020 

550 

394

303 

275 

212 

203 

182

161 

147 

142 

135 

231

370 

773 

948 

1,470 

902

632 

466 

401 

333 

294

278 

247 

238 

212 

223 

297

Nov.

450 

432 

418 

384 

346

398 

990 

1,540 

902 

1,090

1,320 

1,100

1,070 

925 

745

550 

550 

722 

632 

498

380 

300 

259 

232 

262

494 

458 

394 

336 

316

Dec.

339 

320 

313 

281 

253

232 

217

200 

187

174

166 

169 

250 

a260 

a300

a350 

a500 

550 

466 

373

320 

275 

266 

278 

281

284 

313 

363 

343 

307 

278

Jan.

323 

426 

404 

404 

313

336 

466 

446 

390 

360

312 

247 

198 

171 

154

142 

135 

131 

127 

120

116 

122 

154 

176 

171

156 

149 

144 

140 

135 

129

Feb.

124 

118 

114 

112 

104

98 

97 

98 

98

90

86 

85 

83 

97 

133

127 

182 

247 

200 

176

203 

494 

387

303 

326

590 

498 

384 

313

Month SecondMontn foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

mber ......................

lendar year 194 

ary

7 ... 1

"uary

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

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

L2.481 

18,493 

9,208

36,889

7,198 

5,967 

5,422 

8,436 

19,169 

53,186 

4,840 

2,315 

2,061

ter year 1947-48 .......... 118,776

Mar.

275 

244 

212 

195 

179

179 

176

161 

154 

142

133 

129 

127 

122 

120

118 

116 

118 

110 

106

191 

336 

235 

206 

195

179 

176 

189 

203 

198 

198

Maximum

1,470 

1,540 

550

1,670

466 

590 

336 

530 

1,470 

1,240 

313 

97 

122

1,540

Apr.

195 

198 

192 

174 

164

154 

147 

138 

142 

154

166 

152 

147 

152 

203

394 

401 

373 

363 

377

470 

510

510 

530 

514

404 

333 

291 

256 

232

May

214 

200 

307 

398

401

632 

678 

550 

454 

398

360 

360 

408 

415 

401

443 

490 

466 

440 

526

745 

768 

632 

678 

995

1,140 

1,270 

1,470 

1,170 

902 

858

June

1,

1, 

1, 

1, 

1,

1,

1,

Minimum Mean

47 403 

232 616 

166 297

36 293

116 232 

83 206 

106 175 

138 281 

200 618 

366 773 

83 156 

60 74.7 

50 68.7

47 325

902 

948 

100 

902 

835

995 

220 

240 

240 

170

140 

948 

812 

678 

550

590

610 

518 

486 

568

040 

925 

745 

590 

482

412 

390 

390 

394 

366

1918

July

313

269 

250 

2315 

214

241 

235 

203 

183 

18 i

171 

161 

15? 

147 

14?

133 

131 

131 

127 

120

114 

106 

10? 

91 

90

83 

116 

108 

97 

83 

83

Per 

square 

mile

9.64 

14.7

'7.11

7.01

5.55 

4.93 

4.19 

6.72 

14.8 

18.5 

3.73 

1.79 

1.64

7.78

Peak discharge (base, 1,000 sec. -ft.).- Oct. 3 (2:30 a.m.) 1,240 sec. -ft.; Oct.

Aug.

82 

80 

77 

76 

77

97 

80 

76 

74 

72

70 

68 

70 

70 

76

67 

64 

64 

67 

63

62 

62 

60 

68 

76

74 

85 

97 

90 

88 

83

Sept.

82 

78 

83 

78

74

70 

67 

65 

63

60

59 

56 

55 

55 

60

56 

54 

52 

51 

50

50

65 

67 

58 

54

71 

122 

114 

100 

92

Runoff

Inches

11.10 

16.45 

8.19

95.08

6.40 

5.31 

4.32 

7.51 

17.05 

20.63 

4.31 

2.O6 

1.83

105.66

19 (4 a

Acre feet

24,760 

36,680 

18,260

212,000

14,280 

11,840 

10,750 

16,730 

38,020 

45,990 

9,600 

4,590 

4,090

235,600

.m) 1,860

. ._. .- n. ) 1,920 sec.-ft. ; Nov.' 10 (10:30 pirn.) 1,470 sec.-ft.; May 28 (1:30 p.m.) 

1,620 sec.-ft.; June 9 (6 p.m.) 1,420 sec.-ft.

a No gage-height record; discharge computed'on basis of 1 Discharge measurement, recorded range in 

stage, and records for station below Bear Creek, near Cedar Falls.
lOfl LAKE WASHINGTON BASIN 

Cedar River at Cedar Palls, Wash.

Location.- Water-stage recorder, lat. 47°25<10", long. 121°47<20", in Bed. 4, J, |S »»j S;

 8 K.,"three-quarters of a mile dovmstream from Seattle municipal power plaa% at eeaar 

Palls and 3 miles dovmstream from Cedar Lake.

Drainage area.- 86 square miles.

Records available.- April 1914 to September 1948.

Average discharge.- 34 years, 292 second-feet,

Extremes.- Maximum discharge during year, 1,380 Second-feet Nov. 12 (gage height, 7.77

 feet);' minimum, 33 second-feet Aug. 23 (gage height, 4.97 feet).

1914-48: Maximum discharge, 6,290 second-feet Dec. 19, 1917; maximum gage height, 

11.5 feet Dec. 22, 1933; no flow Nov. 25, 1917, Aug. 18, 1923; minimum daily, 2 secondfeet Sept. 20, 1922.

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

 poor. All artificially diverted water returned to river above gage. Sone regulation 

by Cedar Lake Reservoir for power.

Cooperation.- Gage-height record collected in cooperation with city of Seattle. 

Revisions (water years-).- W 722: 1930. W 832: Drainage area.

Rating table, water year 1947-48 (gage height. In feet, 

and discharge, In second-feet)

5.0 36 6.3 400 

5.2 64 6.6 560 

5.4 100 6.9 745 

5.7 170 7.2 950 

6.0 270 7.6 1,240

Discharge, In second-feet, water year October 1947 to September 1946

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

S6 

90 

100 

89 

102

128 

130 

118 

112 

110

64 

63 

142 

120 

104

126 

154 

145 

204 

273

140 

260 

138 

294 

90

80 

282 

214 

225 

378 

380

Nov.

154 

112 

430 

322 

346

431 

372 

464 

560 

780

973 

1,100 

1,120 

1,030 

1,000

884 

838 

859 

908 

916

852 

776 

670 

56O 

288

424 

634 

688 

730 

634

Dec.

474 

425 

444 

292

318

196 

125 

410 

364 

462

436 

462 

270 

420 

a420

a430 

a410 

a420 

a430 

a410

a360 

a390 

353 

154 

115

178 

184 

346 

498 

416 

480

Jan.

218 

407 

325 

526 

579

441 

475 

491 

511 

471

374 

443 

356 

401 

441

411 

256 

472 

516 

542

472 

518

418 

138 

108

260 

179 

201 

208 

158 

172

Feb.

96 

184 

172 

185 

170

224 

140 

88 

224 

134

158 

156 

206 

86 

93

337 

496 

342 

464 

482

468 

485 

692 

733 

760

810 

787 

762

761

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

1..... ..................................

ter year 1947-48 ..................... .~\

Mar.

742 

748 

742 

736 

736

735 

742 

737 

739 

736

562 

551 

453 

82

566

419 

340 

320 

473 

192

308 

558 

427 

424 

330

502 

299 

89 

434 

403 

390

Apr.

286 

340 

134 

78 

376

346 

252 

178 

272

132

111 

222 

189 

170 

282

438 

469 

462 

584 

562

704 

733 

743 

596 

748

738 

738 

722 

731 

657

Secondfoot-days

4,911 

19,855 

11,092

130,428

11,488 

10,695 

15,515 

12,993 

13,632 

25,985 

11,483 

5,501 

3,049

146,199

May

242 

218 

609 

672

590

458 

518 

100 

93 

492

522 

572 

480 

454 

510

494 

520 

608 

556 

568

560 

94 

88 

415 

532

413 

489 

510 

496 

302 

457

Maximum

380 

1,120 

498

1,220

579 

810 

748 

748 

672 

1,220 

1,110 

554 

149

1,220

June

608 

772 

894 

922 

964

385 

1,000 

1,140 

1,220 

1,190

1,040 

992 

934 

845 

756

718 

626 

570 

592 

681

902 

1,120 

1,080 

986 

888

844 

828 

828 

832 

828

July Aug.

680 

653 

496 

415 

533

575 

301 

536 

536 

450

1,110 

477 

444 

374 

342

310 

90 

90 

227 

322

204 

367 

319 

160 

80

410 

314 

196 

216 

170 

86

78 

334 

280 

413

554

£18 

106 

99 

329 

250

137 

164 

222 

108 

81

191 

212 

121 

157 

224

82 

100 

121 

167 

95

103 

102 

44 

78 

185 

146

Minimum Meai

56 158 

112 662 

115 358

50 357

108 371 

86 369 

82 500 

78 433 

88 440 

385 866 

80 370 

44 177 

60 102

44 339

Sept.

120 

SI 

8S 

130 

79

120 

126 

136 

78 

6E

66 

90 

86 

99 

62

60 

85 

84 

86 

128

149 

86 

120 

134 

118

135 

136 

128 

82 

90

Runoff In 

acre-feet

9,740 

39,380 

22,000

258,700

22,790 

21,210 

30,770 

25,770 

27,040 

51,540 

22,780 

10,910 

6,050

290,000

a No gage-height record; discharge computed on basis of records for station near Lardsberg.
LAKE WASHINGTON BASIN 109

Cedar River near Landsberg, Wash.

Location.- Water-stage recorder, lat. 47°23'35", long. 121°56'50", in see 17, T 22 N. R. 

TTTTTiu miles upstream from Landsberg and intake of Seattle water-supply system 7 miles 

upstream from Maple Valley, and 12 miles downstream from Cedar Lake

Drainage area.- 138 square miles (including that of Rock Creek).

Kecords available.- October 1898 to April 1901, April 1914 to September 1948 July 1895 to 

September IBSB 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.- 50 years (1895-1911, 1914-48), 689 second-feet (adjusted for Rock Creek 

diversion since October 1932).

Extremes.- Maximum discharge during year, 1,940 second-feet Nov. 11, 13 (gage height 3 50 

reet); minimum, 233 second-feet Oct. 1 (gage height, 0.97 foot).

1895-98, 1901-12, 1914-48: 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 good, 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-supply intake to 

lessen danger of pollution. Monthly discharge adjusted for diversion. Some regulation 

by Cedar Lake.

Cooperation.- Gage-height record collected in cooperation with city of Seattle

Mevisions (water years).- W 313: 1895-98, 1902-9. W 870: Drainage area.

Discharge, in second-feet, water year.October 1947 to September I 948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

256 

3320 

3350 

3350 

a360

a360 

3360 

3330 

3300 

3310

3250 

3235 

3300 

3300 

1300

3400 

a600 

a 600 

31,000 

838

631 

d740 

d600 

d700 

428

404 

602 

545 

525 

d660 

d750

Nov.

 dsao

d510 

d800 

d700 

d720

840 

1,040 

1,100 

1,230 

1,590

1,670 

f 1,580 

f 1,720 

1,570 

1,500

1,380 

f 1,380 

1,490 

1,400 

1,420

1,340 

1,260 

1,170 

1,080 

796

910 

1,150 

1,180 

1,210 

1,130

Month

Octo 

Move 

Dece

Cal

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wat

endar year 1947

nary . . .

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

er year 1947-48

Dec.

1,100 

953 

998 

816 

826

694 

630 

882 

843 

933

920 

917 

783 

907 

948

958 

936 

949 

959 

745

889 

925 

892 

718 

646

674 

706 

874 

1,020 

909 

994

Jan.

886 

1,150 

995 

1,120 

1,240

1,120 

1,180 

1,170 

1,140 

1,080

1,000 

1,020 

916 

941 

964

922 

752 

917 

973 

1,020

932 

928 

995 

674 

614

722 

659 

658 

658 

610 

593

Feb.

550 

599 

586 

594 

578

602 

562 

499 

633 

542

550 

'548 

580 

493 

568

788 

1,040 

978 

972 

934

975 

1,180 

1,300 

1,280 

1,420

1,780 

1,510 

1,390 

1,340

Mar.

1,300 

1,270 

1,250 

1,220 

1,220

1,230 

1,220 

1,220 

1,200 

1,180

1,020 

980 

916 

586 

845

900 

789 

746 

867 

626

776 

1,160 

980 

915 

825

930 

772 

585 

894 

856 

834

Observed

Discharge in 

second-feet

Maximum

1,000 

1,720 

1,100

1,900

1,240 

1,780 

1,300 

1,280 

1,150 

1,660 

1,080 

871 

455

1,780

Minimum

235 

510 

630

235

593 

493 

585 

524 

510 

816 

405 

366 

305

235

Mean

473 

1,182 

869

738

921 

875 

971 

873 

901 

1,260 

689 

488 

369

821

Runoff 

in 

ao re-feet

29.09C 

70.31C 

53,44C

534, 30C

56.65C 

50.32C 

59.75C 

51,94C 

55.42C 

74.95C 

42.37C 

30.02C 

21,95C

596, 20C

Apr.

729 

790 

594 

524 

786

748 

670 

580 

664 

550

541 

620 

585 

570 

679

936 

946 

921 

1,080 

972

1,160 

1,180 

1,220 

1,080 

1,280

1,220 

1,180 

1,150 

1,150 

1,080

May

752 

586

1,040 

1,130 

1,040

1,100 

1,150 

684 

610 

952

926 

1,010 

991 

898 

926

940 

907 

1,020 

977 

988

990 

607 

510 

771 

923

860 

908 

1,070 

1,030 

819 

864

June

1,050 

1,130 

1,270 

1,280 

1,33Q

816 

1,290 

1,460 

1,520 

1,490

1,390 

1,330 

1,290 

1,220 

1,140

1,100 

1,030 

946 

914 

1,160

1,560 

1,6SO 

1,540 

1,450 

1,340

1,260 

1,230 

1,220 

1,200 

1,190

July

1,080 

1,020 

878 

801 

858

965

769 

854 

896 

820

553

798 

768 

745 

695

660 

450 

432 

572 

649

547 

674 

646 

421 

424

704 

694 

542 

536 

508 

405

Aug.

408 

656 

571 

724 

871

582 

427 

426 

621 

562

484 

466 

520 

418 

387

482 

505 

418 

454 

470

422 

390 

423 

486 

431

424 

427 

366 

384 

486 

444

Sept.

408 

383 

364 

431 

364

377 

426 

414 

348 

324

322 

346 

340 

350 

316

312 

305 

348 

308 

388

390 

352 

387 

383 

360

402 

455 

428 

369 

366

Adjusted for diversion

Rock Creek 

diversion 

(acre-feet)

2,370 

4,010 

2,950

21,060

) 3,540 

) 3,040 

2,270 

) 2,050 

) 2,360 

) 1,820 

) 944 

) 780 

) 917

) 27,050

Runoff 

in 

acre-feet

31,460 

74,320 

56,390

555,300

60,170 

53,360 

62,000 

53,990 

57,780 

76,770 

43,310 

50,800 

22,870

623,200

Discharge in 

second-feet

Mean

512 

1,249 

917

767

979 

928 

1,008 

907 

940 

1,290 

704 

501 

384

858

Per 

square 

mile

Runoff

inches

3 Ho gage-height record; dischsrge computed on basis of records for stations at Cedar Fslls and at 

Renton.

d Doubtful gage-height record; discharge computed on basis of records for station? at Cedar Falls 

and at Renton.

f Computed on basis of partly estimated gage-height record.
110 LAKE WASHINGTON BASIN

Cedar River at Renton, Wash.

Location.- Water-stage recorder, lat. 47°28'40", long. 122°11'50", in NEijSWir sec. 17, T. 

 23 N., R. 5 E., at Renton, 2 miles upstream from mouth. Datum of gage is 19.13 feet 

above mean sea level, supplemental adjustment of 1947.

Drainage area.- 197 square miles.

Records available.- March 1901 to July 1903 (fragmentary), September 1906 to December 1907 

(monthly discharge only), August 1945 to September 1948.

Extremes.- Maximum discharge during year, 2,750 second-feet Feb. 26 (gage height, 4.82 

feet) ; minimum, 138 second-feet Oct. 1.

1901-3, 1906-7, 1945-48: 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 excellent except those for period of no gage-height record, which are 

poor. Flow partly regulated in Cedar Lake Reservoir for operation of power plant. 

City of Seattle diverts water for municipal supply.

196 

£37

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

Dot 1-19

1.4 290

1.6 356

1.8 440

2.0 54O

2.3 704

2.6 075

3.0 1,160

3.4 1,500

1.1 192

1.2 215

1.4 271

1.6 344

Oct. 20 to Sept. 30

2 1.8 436 3

2.0 540

2.3 7O4

2.6 875

3.0 1,160

3.5 1,590

4.0 2,020

4.7 2,640

Discharge, in second-feet, water year October 1947 to September 194f

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

164 

152 

454 

558 

311

24b 

240

242 

239 

258

iOb 

174 

207

280

72' 

1,010 

983 

1 ,4^0 

1,260

990 

710 

680 

604 

506

J68 

407 

555 

490 

596 

738

Nov.

826 

735 

856 

908 

816

932

1.310 

1,600 

1.470 

1,560

1,940 

1,830 

1,840 

1,750 

1,690

1,590 

l.SCO 

l.f-40 

1.640 

1,650

1,530 

1,410 

1,290 

1 .220 

905

383 

1,280 

1,330 

1,3EO 

1,200

Dec.

1.42O 

1,170 

1,210 

1,080 

944

817 

827 

081 

980 

1,010

1,050 

1.020 

934 

1,030 

1,120

1,090 

1,180 

1,220 

1,310 

1,040

1.070 

1,160 

1,110 

1,060 

884

789 

B94 

1 , 1 00 

l.SeO 

1,200 

1 ,200

Jan.

1,350 

1,79O

i.eeo

1,670 

1,770

1,650 

1,720 

1,720 

1,570 

1,550

1,490 

1,580 

1,260 

1,190 

1,190

1,160 

970 

1,010 

1,130 

1,180

1,180 

1.070 

1 , 230 

908 

791

770 

/88 

758 

743

736 

684

Feb.

t88 

632 

667 

678 

668

646 

642 

628 

672

668

650

650 

640 

614 

736

923 

1,360 

1,440 

1,250 

1 .130

1.200 

1,600 

1.750 

1,570 

1,760

2.F10 

2.140

1,730 

1,590

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

st

ter year 1947-48 .......................

Mar.

,530 

,460 

,40O 

,350 

,320

,330 

,340 

,320 

,280 

,250

1.O7O

1,020 

966 

772 

705

908 

838 

764 

796 

724

721

1,1-: so

1,320 

1.07O 

1,060

1,020 

932 

796 

648 

931 

885

Apr.

798 

849 

718 

623 

732

780 

766 

63 b 

634 

658

650 

670 

656 

606 

645

934 

.030 

,O10 

.180 

.220

,320 

,350 

.250 

,110 

,370

,310 

,2.5O 

,190 

,1SO 

,100

Secondfoot-days

15,835 

40,699 

33,160

272,516

37,968 

31,932 

33,355 

28,215 

29,769 

39,858 

19,170 

11,868 

8,753

330,582

May

844 

569 

925 

1.140 

1,060

1,250 

1,270 

97O 

693 

829

1,000 

1,090 

1,080 

996 

94O

987 

972 

1,050 

1,030 

1,040

1,020 

834 

554 

662 

797

867 

796 

1,170 

1,360 

1,070 

804

Maximum

1,460 

1.940 

1,420

5,060

1,790 

2,610 

1 , 630 

1,370 

1,370 

2.O4O 

1,030 

736 

472

2,610

June

1.000 

1,090 

1,260 

1,310 

1,370

980

1,080 

1,480 

1,560 

1,560

1,510 

1,410 

1,390 

1,290 

1,190

1,150 

1,150 

1.O1O 

878 

1,150

1,970 

2,040 

1,760 

1,610 

1,460

1,340 

1,280 

1,240 

1,180 

1.1EO

July

1 . 030 

95C 

862 

766 

707

926 

908 

699 

874 

736

654 

596 

675 

680 

593

561 

424 

328 

438 

506

492 

514 

570 

447 

348

466 

648 

55G 

452 

438 

320

Minimum

152 

733 

789

140

684 

614 

705 

606 

554 

878 

320 

290 

206

152

Aug.

298

400 

474 

543 

736

590 

345 

309 

428 

516

394 

364 

394 

33O 

290

362 

370 

337 

329 

358

314 

292 

310 

340 

408

331 

347 

318 

300 

321 

420

Mean

511 

1,357 

1,070

747

1,225 

1,101 

1,076 

940 

961 

1,329 

618 

383 

292

903

Sept.

534 

276 

298 

31O 

279

258 

299 

288 

280 

a250

a 240 

a250 

a 250 

232 

245

212 

206 

222

222 

268

272 

321

334 

320 

282

364 

458 

472 

400 

311

Runoff in 

acre-feet

31,410 

80,730 

65,770

538,500

75,310 

63,340 

66,16O 

55,960 

59,050 

79,060 

38,020 

23,540 

17,360

655,700

a No gage-height record; discharge computed on basis of records for station near Landsberg.
LAKE WASHINGTON BASIN 111 

South Fork Cedar River near Lester, Wash.

Location.- Water-stage recorder, lat. 47°18'30", long. 121°31'00", in SEj- sec. 15, T. 21 

N., K. 10 E., about three-quarters of mile upstream from mouth and 7 miles northwest 

of Lester.

Drainage area.- 6.0 square miles.

Records available.- October 1944 to September 1948.

Extremes.- Maximum discharge during year, 540 second-feet Nov. 7 (gage height, 4.58 feet), 

from rating curve extended above 230 second-feet; minimum, 4.7 second-feet Oct. 1 (ea^e 

height, 1.41 feet).

1944-48: 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, ice effect, or those 

above 300 second-feet, which are fair. No diversion or regulation.

Discharge, in second feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

68

142

70

50

39

32

28

26

23

20

18

18

16

22

31

86

128

197

120

79

59

50

41

36

33

29

28

26

26

34

Nov.

48

50

50

48

43

49

214

298

139

187

174

108

92

72

61

50

62

75

65

55

46

40

36

32

35

63

70

61

51

47

-

Dec.

50

47

43

39

35

32

29

28

26

24

23

22

28

28

34

39

60

*70

60

49

42

36

34

34

36

38

43

50

47

42

38

Jan.

39

39

35

33

29

28

27

24

23

22

21

19.5

18.5

17.5

16.5

15.5

15

14.5

13.5

*13

13

13

15.5

15.5

15

15

15

15

15

14.5

14

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

13.5

1J

13

12.5

12.5

b!2

12

1)12

bll.5

bll

10.5

9.9

9.5

10.5

11

12

14

15.5

15.5

15.5

21

48

39

34

36

65

65

*52

43

_

-

Secondfoot-days

1,579.8

2,421

1,206

14,359.0

624.0

649.9

616.5

993.0

3,390

3,412

628.5

£84.8

230.2

16,036.7

Mar.

38--

29

26

24

22

21

20

18.5

17.5

16.5

16

15

14.5

13.5

12.5

12.5

12.5

1£

11

19

27

23

22

22

20

13.5

19.5

19.5

20

20

Maximum

197

298

70

298

39

65

38

73

325

212

41

12

12 .i

325

Apr

21

21

21

20

19.5

18.5

17.5

16.5

16

15.5

15

15

14.5

14.5

17.5

28

38

40

42

45

61

73

71

71

62

52

44

39

34

30

May

28

25

33

41

49

85

101

80

65

56

50

50

58

60

60

67

80

76

71

93

142

145

118

132

212

255

280

325

227

167

159

Minimum

4.8

32

22

3.8

13

9.5

11

14.5

25

50

11

7.6

5.8

4.8

June

162

176

212

148

135

170

208

206

190

159

150

117

99

95

77

82

85

73

68

81

123

101

85

73

64

57

54

56

56

56

Mean

51.0

80.7

38.9

39.3

20.1

22.4

19.9

33.1

109

114

20.3

9.19

7.67

43.8

July

41

36

33

31

29

32

31

28

25

24

23

22

20

19

18.5

17.5

17

16.5

16

15

14

13

12.5

12

11

li:5

14

12.5

11.5

11

11

Per 

square 

mile

8.50

13-4

6.48

6.55

3.35

3.73

3.32

5.52

18.2

19.0

3.38

1.53

1.28

7.30

Aug.

10.5

I'3.5

3.9

3.9

11

12

K).5

3.5

.2

5.8

5.5

3.5

).B

5.5

9.2

E

i

.2

.9

.9

.2

7.9

7.9

E

E

1

1C

1C

.6

.6

.9

.2

i.2

.5

).5

).5

10.5

Sept.

9.5

9.5

9.9

9.2

8.5

8.2

7.9

7.6

7.4

7.1

6.8

6.5

5.3

6.3

fi.5

5 . 0

5.8

5.8

5.8

5.8

5.8

.7.1

6.5

6.3

5.8

7.9

12.5

11.5

10.5

9.9

Runoff

Inches

S .79

15.01

7.48

8S .00

3.87

4.03

3.82

6.15

21 .01

21 .15

3.90

1.77

1.43

9E.41

Acre-feet

3,130

4,800

2,390

28,480

1,240

1,290

1,220

1,970

6,720

6,770

1,250

565

457

31,800

Peak discharge (base, 200 sec.-ft.).- Oct. 19 (4 a.m.) 233 sec.-ft.; Nov. 7 (9 p.m.) 540 sec.-ft.; 

Nov. 10 (2:30 p.m.) 259 sec.-ft.; May 28 (11 a.m.) 368 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
112 LAKE WASHINGTON BASIN

Rex River near Cedar Falls, Wash.

Location.- Water-stage recorder, lat. 47°21'10", long. 121°39'50", in NE^NWi sec. 33, T. 

22 H. , R. 9 E., 2| miles upstream from mouth and Cedar Lake and 7 miles southeast of 

Cedar Falls.

Drainage area.- 13.0 square miles.

Records available.- October 1945 to September 1948.

Extremes . - Maximum discharge during year, 930 second-feet Nov. 7 (gage height, 5.48 feet); 

minimum 15 -C second-feet Septj 19-21 (gage height, 2.78 feet).

1945-48: Maximum discharge recorded, 1,400 second-feet Dec. 28, 1945 (gage height, 

6.20 feet), from rating curve extended above 680 second-feet, but may have been greater Dec. 14, 1946, during period of faulty gage-height record ;" minimum discharge, 8.1 

second-feet Sept. 29, 30, 1946.

Remarks . - Records good. No diversion or regulation.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used May 12-27)

2.7 12 3.4 83 4.3 333 

2.8 16.5 3.6 123 4.6 456 

3".0 31 3.8 173 5.0 6"48 

3.2 52 4.0 231

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16- 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19 

316

507 

260 

173

121 

94 

80 

81 

68

56 

50 

S5 

50 

156

247 

420 

372 

542 

322

228 

168 

152 

115 

98

91 

76 

80 

69 

91 

137

Nov.

210 

181 

165 

140 

121

205 

614 

501 

280 

511

376 

237 

290 

201 

152

119 

228 

253 

190 

145

112 

92 

78 

66 

129

228 

176 

145 

121 

130

Dec.

165 

147 

165 

130 

108

92

 81 

73 

65 

58

55 

62 

112 

112 

173

213 

*380 

297 

210 

157

125 

106 

112 

125 

121

123 

152

173 

140 

117 

104

Jan.

162 

210 

155 

121 

98

142 

260 

190 

137 

115

92 

76 

68 

60 

53

49

45 

43 

40 

39

*38 

44

73 

80 

71

62 

58 

53 

50 

46 

43

Feb.

40 

38 

36 

35 

31

b30 

b30 

30 

28 

25

26 

24 

23 

36 

50

43 

85 

123 

89 

73

130 

304 

179 

128 

210

376 

237 

160 

*121

uonth SecondMonth foot-days

Goto 

Novs 

Dece

Ca

Jami 

Febr 

Bare 

Apr! 

May 

Juns 

July 

Augu 

Sept

Wa

mber ...................... .4

lendar year 1947 

ary

............................ 6

.......................... 6

St............... .........

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

,294 

,396 

,253

,882.8

,773 

740 

831 

198 

801 

553 

245 

923.5 

930.5

ter year 1947-48 .......... 42,938.0

Peak discharge (base, 7OO sec. -ft.).- Oct

ft.; Nov. 7 (7 p.m.) 930 sec. -ft.; Nov. 1O 

* Winter discharge measurement made on th 

b Stage-discharge relation affected by ic

Mar.

100 

85 

73 

63 

58

56

53 

50 

46 

43

41 

39 

39 

37 

37

36 

35

34 

33 

31

83 

130 

83 

69 

62

55 

59 

73 

83 

76 

69

Maximum

542 

614 

380

810

260 

376 

130 

225 

501 

404 

78 

59 

92

614

Apr.

65 

62 

59 

52 

48

45 

42 

41 

45 

51

53 

48 

46 5'6 

113

225 

181 

152 

142 

160

190 

190 

201 

216 

204

147 

115 

94 

81 

74

Hay

69 

66 

172 

198 

198

341 

280 

207 

170 

142

130 

134 

145 

142 

145

170 

170 

160 

150 

181

237 

228 

198 

234 

329

356 

384 

501 

376 

301 

287

June

283 

290 

304 

247 

244

290 

333 

333 

329 

273

297 

213 

195 

157 

142

179 

176 

152 

137 

277

404 

260 

195 

160

135

123 

115 

110 

108 

92

July

78 

69 

63 

58 

49

74 

69 

58 

51 

49

44 

41 

38 

36 

33

32 

30 

29 

30 

27

24 

23 

23 

21 

19.5

19.5 

61 

33 

27 

24 

22

Per 

Minimum Mean square 

mile

19 171 13.2 

66 213 16.4 

55 137 10.5

8.6 109 8.38

38 89.5 6.88 

23 94.5 7.27 

31 59.1 4.55 

41 107 8.23 

66 219 16.8 

92 218 16.8 

19.5 40.2 3.09 

19 29.8 2.29 

15.5 31.0 2.38

15.5 117 9.00

Aug.

22 

20

19.5 

19 

25

49 

28 

25 

24 

23

22 

21 

25 

23 

27

22

19.5 

20 

25 

21

20

19.5 

19 

48 

44

39 

59 

59 

49 

46 

41

Sept.

38 

38 

45 

38 

33

30 

29 

26 

24 

23

22 

20

19.5 

19 

19.5

19.5 

18.5 

17 

16 

15.5

16.5 

37 

29 

21 

19.5

41 

92 

66 

52 

46

Runoff

Irches Acre-feet

15.14 10,500 

18.30 12,690 

12.17 8,440

114.10 79,120

7.93 5,500 

7.84 5,430 

5.24 3,630 

9.15 6,340 

19.46 13,490 

18.75 13,000 

3.56 2,470 

2.64 1,830 

2.66 1,850

ir2.84 85,170

. 3 (12:30 a.m.) 756 sec. -ft.; Oct. 19 (3 p.m.) 756 sec. 

;i2 m.) 756 sec. -ft. 

Ls day.

3.
LAKE WASHINGTON BASIN 113

Rock Creek near Landsberg, Wash.

Location.- Water-stage recorder, lat. 47°23'30", long. 121°58'20", in SE^ sec. 13, T. 22 

N. , R. 6 E., 1 mile upstream from mouth and l£ miles north of Landsberg.

Drainage area.- 11 square miles,

Records available.- June 1945 to October 1948 (discontinued).

Extremes.- Maxinum discharge during period October 1947 to October 1948, 196 secondfeet Feb. 26 (gage height, 3.-13 feet); minimum, 6.0 second.-feet Oct. 1.

1945-48: Maximum discharge," 213 second-feet Dec. 14, 194G'(gage height, 3.30 feet, 

from recorded range in stage); minimum, 2.2 second-feet £Jept. 26, 1946.

Remarks.- Records good except those for periods of shifting centpol, jfhich ap,e fair, and 

those for periods of no gage-height record, which are poor. Some regulation in Walsh 

Lake by city of Seattle. No diversion.

charge, in second-feet, 1947-48

1347-46

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.2

12

28

23

19

ie

16

16

18

18

16

16

18

20

27

60

90

80

130

90

75

60

50

43

38

34

31

34

31

35

45

Nov.

100

65

95

88

82

96

130

130

102

112

93

65

72

56

64

52

53

75

59

49

42

37

33

29

35

48

39

34

30

37

~

Dec.

61

50

58

46

38

34

4O

37

34

32

33

31

38

39

39

50

62

68

60

48

50

48

53

54

45

41

50

63

61

-49

76

Jan.

105

118

120

125

95

100

94

82

68

76

66

55

47

42

3g

32

31

29

27

26

26

30

53

58

48

39

34

31

30

33

29

Feb.

27

26

24

26

23

21

21

24

27

24

22

21

20

23

39

52

69

76

56

44

64

94

94

69

110

175

125

80

59

-

-

Mar.

53

48

41

35

33

36

39

37

33

30

29

27

29

27

26

27

26

27

25

23

47

83

51

41

51

44

38

37

37

34

31

Apr.

31

39

37

31

30

30

28

25

27

37

42

34

30

29

30

49

45

40

34

31

29

30

35

38

50

41

36

34

33

29

-

May

27

26

37

34

38

64

54

48

42

42

37

35

36

34

32

30

36

34

30

29

27

24

24

23

20

19.5

24

87

85

63

47

June

36

30

26

24

21

18.5

17

15

13.5

12.5

23

20

23

19

15.5

21

27

21

18

64

132

81

54

41

35

30

26

21

18

15.5

July

14

13.5

13

15

15

30

37

30

21

17.5

16

15

13.5

12.5

11.5

11

11

10.5

15

16.5

15.5

13

12

11.5

11

10.5

14.5

14

IS

11.5

11

Aug.

10.5

10.5

10.5

11

11

12

11

10.5

9.9

9.9

9.9

9.5

9.9

11

12

10.5

9.9

9.9

9.5

9.5

9.5

10.5

9.5

18

23

18

23

21

18

18

16.5

Sept.

14.5

14.5

18.. 5

16

14

13

12

11

10.5

9.5

9.1

9.1

0.7

8.3

9.9

9.5

9.1

8.7

8.7

8.3

8.7

16

17

14

11.5

22

42

47

36

25

Mote.- No gage-height record Oct. 3 to Nov. 6; discharge computed on basis of recorded range in 

stage and records for Issaquah Creek near Issaquah. Shifting-control method used Oct. 1, 2, Mar. 

22 to Apr. 27, May 3 to June 3, Sept. 29, 30.

1948

Day

Oct. 1

2

3

4

5

6

Discharge

18.5

18.5

14.5

32

27

24

Day

Oct. 7

8

9

10

11

12

Discharge

32

29

23

18.5

22

18

Day

Oct. 13

14

15

16

17

18

Discharge

15.5

14

13

12

11

10.5

Day

Oct. 19

20

21

22

23

24

Discharge

11

11

10.5

9.9

9.5

9.9

Day

Oct. 25

26

27

28

29

30

31

Discharge

9.1

14

12

9.9

10.5

12

16

Note.- Shifting-control method used Oct. 1-31.

Monthly discharge, in second-feet, 1947-48

Month

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

Calendar year 1947 .........

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

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

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

Water year 1947-48 .......... 

October 1948. ..................

Secondfoot-days

1,197.2 

2,022 

1,488

10,615.3

1,785 

1,535 

1,145 

1,034 

1,188.5 

918.5 

476.0 

393.4 

462.1

13,644.7 

498.3

Maximum

130 

130 

76

135

125 

175 

83 

50 

87 

132 

37 

23 

47

175 

32

Minimum

6.2 

29 

31

3.8

26 

20 

23 

25 

19.5 

12.5 

10.5 

9.5 

8.3

6.2 

9.1

Mean

38.6 

67.4 

48.0

29.1

57.6 

52.9 

36.9 

34.5 

38.3 

30.6 

}5.4 

12.7 

15.4

37.3 

16.1

Per 

square 

mile

3.51 

6.13 

4.36

E.65

5.24 

4.81 

3.35 

3.14 

3.48 

2.78 

1.40 

1.15 

1.40

3.39

1.46

Runoff

Inches

4.05 

6.84 

5.03

35.89

6.03 

5.19 

3.87 

3.50 

4.02 

3.11 

1.61 

1.33 

1.56

46.14 

1.68

Acre feet

2,370 

4,010 

2,950

21,060

3,540 

3,040 

2,270 

2,050 

2,360 

1,820 

944 

780 

917

27,050 

988
114 LAKE WASHINGTON BASIN

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., K. 6 E., at mouth 2 miles southeast of Maple Valley.

Drainage area.- 12.6 squar.e miles.

Records available.- June 1945 to September 1948.

Extremes.- Maximum discharge year, 87 second-feet Feb. 27 (gage height, 2.12 feet);

 minimum, 3.1 second-feet Oct. 11, 12, 13 (gage height, 0.29 foot).

1945-48: Maximum discharge recorded, 105 second-feet Dec. 14, 1946 (gage height, 

2.82 feet), but probably was greater about Dec. 15, 1946, during period of no gageheight record; minimum discharge, that of Oct. 11, 12, 13, 1947.

Remarks.- Records good exce.pt those for period of shifting control, which are fair. No 

known regulation or diversion.

Rating table, water year 1947-48, except period of shifting control 

(gage height. In feet, and discharge. In second-feet)

0.3 

.5 

.7

3.3

8.2

14.5

0.9

1.1 

1.3

1.5

1.7 

2.0 80

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

5.1

5.1

4.9

4.7

4.7

4.2

4.0

4.2

4.0

3.5

3.5

3.8

4.0

4.9

5.9

7.4

8.2

11

13

13

13.5

14.5

14.5

15.0

16.5

17

17

17.5

17.5

18

Nov.

20

22

24

25

26

27

28

29

31

33

34

34

34

34

34

33

34

36

36

37

36

36

34

34

32

32

31

30

30

30

"

Dec.

32

32

36

36

36

36

37

36

36

36

35

34

34

34

34

34

34

34

35

36

38

38

39

38

38

38

38

39

40

42

44

Jan.

47

50

56

68

76

79

79

80

79

80

78

74

69

65

61

58

55

52

50

48

46

44

43

42

40

39

38

36

36

34

34

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

Jnne ..........................

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

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

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

Water year 1947-48 ..........

Feb.

33

32

31

30

29

28

27

27

27

26

26

25

24

24

25

26

30

32

34

34

36

37

40

44

49

68

85

83

75

-

Secondfoot-days

284.8

936

1,129

7,631.6

1,736

1,087

1,348

1,036

700.5

538

345.8

262.5

10,300.6

Mar.

69

63

58

54

52

50

48

47

45

44

42

41

39

38

37

36

35

34

34

32

34

36

39

42

44

44

44

44

42

41

40

Maximum

18

37

44

65

80

85

69

40

27

23

13

9.6

85

Apr.

40

39

38

38

37

36

36

36

35

35

35

35

35

34

34

34

34

34

34

34

34

33

32

32

32

32

32

32

32

32

-

May

31

30

30

29

30

31

31

32

32

32

32

32

31

31

31

30

30

29

29

28

27

27

27

27

26

26

25

26

25

25

25

Minimum

3.5

20

32

3.5

34

24

32

32

19 5

13

9.6

7.9

3.5

June

26

26

25

25

25

24

, 23

22

22

22

22

21

21

21

20

20

19.5

20

23

24

22

24

25

26

27

26

26

25

24

24

-

Mean

9.19

31.2

36.4

?0 9

56.0

37.5

43.5

34.5

28.9

23.4

17.4

11.2

8.75

28.1

July

23

22

22

22

21

21

21

20

20

19.5

19

18.5

18

17.5

17

16.5

16

16

16

16

15.5

15

14.5

14

14

13.5

14.5

14.5

14

13.5

13

Per 

square 

mile

.729

2.48

2.89

1.66

4.44

2.98

3.45

2.74

2.29

1.86

1.38

.889

.694

2.23

Aug

13

1

1

1

3

2.5

2.5

12.5

12.5

1

1

1

2

2

2

12

11.5

1

1

1

1.5

1.5

1

11

11

1

1

1

1

1

3.5

10.5

10.5

:

i

i

3.5

D

3.5

10.5

10

1 D

3.9

3.9

3.9

9.6

Sept.

9.6

9.6

9.6

9.4

9.4

9.1

9.1

8.8

8.8

8.5

8.5

8.5

8.5

8.5

8.5

8.2

7.9

7.9

7.9

7.9

8.2

9.1

8.5

8.2

8.2

9.4

9.4

9.4

9.1

8.8

-

Runoff

Inches

.84

2.76

3.33

22.54

5.12

3.21

3.98

3.06

2.65

2.O7

1.59

1.O2

.77

30.40

Acre-feet

565

1,860

2,240

15,150

3,440

2,160

2,670

2,050

1,780

1,390

1,070

686

521

20,430

discharge (base, 50 sec.-ft.).- Jan. 6 (3 a.. 

Note.- Shifting-control method used Mar. 16 to June

sec.-ft.; Feb. 27 (f 87 sec.-ft.
LAKE WASHINGTON BASIN 115

May Creek near Renton, Wash.

Location.- Water-stage recorder, lat. 47°31'10", long. 122°11'10", in SE^SE^ sec. 32, T. 

24 N., R. 5 E., 1 mile upstream from mouth and 2j miles north of Renton.

Drainage area.- 13.0 square miles.

Records available.- June 1945 to September 1948.

Extremes.- Maximum discharge during year, 148 second-feet Jan. 2, 4 (gage height, 3.01 

feet) ; minimum, 2.6 second-feet Oct. 1, 2.

1945-48: Maximum discharge, 174 second-feet Dec. 14, 1946 (gage height, 3.45 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 no gage-height record, which are poor. Some small diversions for 

irrigation and domestic use. No regulation.

Rating table, water year 1947-48, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet]

1.6 3.0 2.3 56

1.8 11 2.6 93

2.0 25 3.0 147

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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. 

4. 

3. 

3.

3. 

3. 

3. 

3. 

3.

3. 

3. 

4. 

5.0 

15

40 

80 

70 

130 

100

70 

50 

35 

27 

23

20 

18 

19 

17 

22 

30

Nov.

66 

68 

72 

70 

60

52 

48 

48 

44 

44

40 

36 

34 

31 

36

34 

34 

54 

56 

50

42 

35 

30 

27 

25

28 

27 

24 

22 

28

Dec.

53 

54 

56 

49 

42

36 

42 

38 

35 

34

33 

30 

32 

32 

50

35 

49 

53 

57 

53

49 

46 

49 

64

61

54 

62 

76 

75 

68 

72

Jan.

106 

134 

134 

140 

114

106 

106 

98 

93 

96

90 

72 

58 

46 

38

32 

28 

24 

22 

20

19 

20 

22

22 

20

17 

17 

15 

16 

18 

17

Feb.

17 

15 

15 

17 

16

14 

14 

24 

33 

29

25 

23 

£2 

27 

42

53 

88 

79 

61 

53

60 

61 

69 

63 

73

133 

115 

79 

60

u~~n, SecondMonth foot-days

Octc 

Hove

Dece

Ca

Jan i! 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

mber . .

lendar year 1947

 uary . ... . ...

st

ember .

- 1

816.8 

,265 

,519

,356.7

,760 

,380 

,067 

674 

705 

446.0 

228.8 

134.7 

176.5

ter year 1947-48 ..... . . 10,172.8

Mar.

50 

42 

34 

30 

27

£3 

23 

21 

20

19 

18 

17 

17 

15

15 

14 

15 

15 

17

42 

111 

84 

62 

69

57 

49 

42 

36 

31 

27

Maximum

130 

72 

76

139

140 

133 

111

31 

40 

32 

15 

6.4 

21

140

Apr.

£6 

31 

28 

25 

24

22 

21 

20 

23 

29

27 

25 

£3 

21

21

25 

23 

21 

20 

17

17 

18 

18 

20 

27

23 

21 

20 

20

18

May

2O 

17 

24 

22 

24

40 

36 

31 

28 

£9

26 

26 

29 

26 

£3

22 

22 

19 

17 

16

14 

14 

13

12 

11

10 

11 

£8 

34 

33 

28

June

23 

20 

16 

15 

14

12 

11 

9.5 

8.5 

8.0

12 

11 

13 

11 

9.5

12 

14 

12 

11 

18

32 

29 

24 

20 

18

16 

14 

12 

11 

9.5

Minimum Mean

2.6 26.3 

22 42.2 

30 49.0

2.1 20.2

15 56.8 

14 47.6 

14 34.4 

17 22.5 

10 22.7 

8.0 14.9 

4.0 7.38 

3.4 4.35 

3.4 5.88

£.6 27.8

Peak discharge (base, 130 sec. -ft.).- Probably Oct. 19 (time and dlscha

p.m.) 148 sec. -ft.; Jan. 4 1C:30 p.m.) 148 sec. -ft.; Feb. 26 (3:30 p.m.)

July

8.5 

8.0 

7.6

8.0 

7.6

11 

15 

15 

11 

9.5

8.5 

8.0 

7.6 

7.1

6.6

6.2 

5.8 

5.8 

7.1 

6.6

6.2 

5.8 

5.0 

5.0 

4.6

4.6 

7.6 

6.2 

5.0 

4.3 

4.0

Per 

square 

mile

£.02 

3.25 

3.77

1.55

4.37

3.66 

2.65 

1.73 

1.75 

1.15 

.568 

.335 

.452

2.14

Aug.

4.0 

4.O 

4.3 

4.0 

4.3

5.0 

4.3 

4.0 

4.0 

4.O

3.7 

3. 

3. 

3.

4. 

4. 

3. 

3. 

3.

3. 

.3. 

3. 

6.

6.

5.0 

6.0 

6.0 

5.0 

5.0 

4.5

Sept.

4.0 

3.8 

5.0 

4.5 

4.2

4.0 

4.0 

3.8 

3.6 

3.4

3.4 

3.4 

3.4 

3.4 

5.0

4.6 

4.3 

4.0 

4.0 

3.4

4.3 

5.0 

5.4 

4.6 

4.0

10 

14

21 

17 

12

Runoff

Inches Ac re- feet

£.34 1,620 

3.62 2,510 

4.35 3,010

21.06 14,590

5.03 3,490 

3.95 2,740 

3.05 2,120 

1.93 1,340 

2 . 02 1 , 400 

1.28 885 

. 65 454 

.39 267 

. 50 350

2S.11 20,190

rge unknown); Jan. 2 (8, 9 

144 sec. -ft.

iii>t,e. - nu gdgtr-ne-LgriL recroru occ. ld-£4, Aug. 11 CO Sept. 14; 

1 discharge measurement, recorded range In stage,'and records fc 

Shifting-control method used Oct. 1-11, July 9 to Aug. 16, Sept.
116 LAKE WASHINGTON BASIN

Issaquah Creek near Issaquah, Wash.

Location^- Water-stage recorder, lat. 47°28'55", long. 122°02'10", in Wj sec. 15, T. 23 

N-. K. 6 E.-, 3-g miles south of Isaaquah and 4 miles upstream from East Pork Issaquah 

Creek.

Drainage area.- 22.1 square miles.

Records available.- June 1945 to September 1948.

Extremes.- Maximum discharge during year, 540 second-feet Feb. 26 (gage height, 3.02 feet): 

minimum, 20 second-feet Sept. 13, 14 (gage height, 0.89 foot), but may have been lower 

during period of doubtful gage-height record in August.

1945-48: Maximum discharge, 675 second-feet Dec. 14, 1946 (gage height, 3.45 feet); 

minimum, 13 second-feet Aug. 5, 1945.

Remarks.- Records good except those for period of doubtful gage-height record, which are 

I'alr. Many small diversions for irrigation and domestic use. No regulation.

Revisions (water years).- W 1092: 1946.

Rating table, water year 1947-46 (gage height, in feet, 

and discharge, in second-feet)

(Shifting-control method used Feb. 26 to Mar. 21, July 6 to Aug. 15)

0.9 

1.0 

1.2

1.4 

1.6

107

154

205

2.0 256

2.3 340

2.6 460

Discharge, in second-feet, water year October 1947 to September 1918

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22

36

87

58

46

38

33

32

37

36

32

30

38

40

95

169

274

242

410

285

216

144

130

100

79

72

62

74

62

65

113

Nov.

236

184

215

189

169

189

236

261

205

234

205

159

169

137

154

130

132

184

152

128

109

96

83

74

89

118

1O3

92

85

118

-

Dec.

176

154

169

144

130

128

144

142

125

128

121

112

128

116

116

142

166

187

179

149

154

154

159

176

147

132

155

189

202

172

202

Jan.

260

315

318

346

263

288

288

253

202

234

200

166

142

123

107

96

87

79

72

66

62

79

121

116

98

83

74

68

68

79

66

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

62

58

56

60

54

49

48

66

77

64

54

53

53

62

123

157

223

208

154

132

176

205

223

182

253

466

301

215

169

.

-

Secondfoot-days

3,199

4,635

4,698

28,574

4,839

4,003

3,165

2,795

2,822

2,095

1,113

821

1,003

35,188

Mar

152

135

114

100

92

92

96

94

83

74

72

68

66

64

60

60

54

62

54

53

125

230

162

140

174

147

130

118

107

98

89

Maximum

410

261

202

452

346

466

230

118

200

218

81

44

94

466

Apr.

85

107

103

92

92

92

87

81

89

112

116

100

92

83

81

116

109

96

89

81

74

79

89

101

118

98

69

85

83

74

-

May

70

66

96

83

94

156

123

109

98

103

92

94

94

83

74

70

83

72

68

64

58

54

53

49

44

44

64

200

192

154

116

Minimum

22

74

112

14

62

48

53

74

44

37

25

21

21

21

June

92

79

66

60

58

51

44

40

37

37

65

53

60

51

43

61

79

58

49

109

218

144

112

92

79

68

56

49

43

40

-

Mean

103

154

152

76.3

156

138

102

93.2

91. 0

69.8

35.9

26.5

33.4

96.1

July

37

3-5

31

33

40

67

81

64

48

43

40

36

32

29

29

20

28

' 27

33

33

29

28

27

27

26

26

36

32

28

26

25

Per 

square 

mile

4.66

6.97

6.88

3.54

7.06

6.24

.62

.22

.12

16

.62

.20

.51

4.35

Aug.

25

24

24

24

25

25

24

23

23

23

?2

22

22

23

23

d23

d21

d21

d21

d21

d21

321

d22

44

44

32

42

42

32

32

30

Sept.

27

26

33

29

26

25

25

24

23

21

21

21

21

21

26

?4

23

22

21

21

22

37

36

26

25

65

69

94

74

53

-

Runoff

Inches Acre-feet

5.38 6,350

7.80 9,190

7.91 9,320

48. 08 56,680

8.14 9,600

6.74 7,940

5.33 6,280

4.70 5,540

4.75 5,600

3.53 4,160

1.87 2,210

1.38 1,630

1.69 1,990

59.22 69,810

Peak discharge (base, 400 sec.-ft.).- Oct. 19 (6 a.m.) 525 sec.-ft.; Jan. 3 (11:30 p.m.) 

ft.; Feb.26 (7 a.m.) 540 sec.-ft.

d Discharge computed from doubtful gage-height record.
LAKE WASHINGTON BASIN 117

Sammamish Lake near Redmond, Wash.

Location.- Staff gage, lat. 47°38'40", long. 122°06'10", in NE£ sec. 24, T. 25 N., R. 5 

K., on left shore, 0.6 mile upstream from outlet and 1.8 miles south of Redtiond. Datum 

of gage is 32.13 feet above mean lower low water at Seattle (Corps of Engineers bench 

mark).

Drainage area.- 91 square miles.

Records available.- January 1939 to September 1948.

Extremes.- Maximum gage height observed during year, 6.43 feet Jan. 11; minimum observed, 

U.9U root Qct. 1.

1939-48: Maximum gage height observed, 7.17 feet Jan. 11, 1946; minimum observed, 

0.25 foet 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. No known diversion or regulation.

Gage height, In feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.90

.92

.98

1.02

1.00

1.03

1.03

1.02

1.03

1.06

1.06

1.08

1.10

1.12

1.16

1.32

1.52

1.74

2.30

2.58

2.92

2.94

2.98

3.02

3.03

3.02

3.00

2.98

2.96

2.95

2.98

Nov.

3.16

3.38

3.53

3.70

3.78

3.86

3.98

4.10

4.28

4.42

4.46

4.46

4.46

4.49

4.52

4.54

4.56

4.74

4.84

4.86

4.84

4.80

4.76

4.66

4.62

4.56

4.52

4.45

4.39

4.33

-

Dec.

4.41

4.41

4.42

4.42

4.40

4.34

4.32

4.29

4.27

4.23

4.19

4.16

4.14

4.09

4.05

4.04

4.08

4.12

4.18

4.22

4.23

4.24

4.26

4.32

4.40

4.39

4.39

4.44

4.57

4.63

4.69

Jan.

4.93

5.17

5.47

5.73

5.91

5.97

6.15

6.27

6.29

6.38

6.43

6.41

6.35

6.25

6.13

6.02

5.89

C..73

5.61

5.48

5.35

5.23

5.13

5.08

4.99

4.87

4.75

4.65

4.55

4.47

4.37

Feb.

4.27

4.21

4.13

4.03

3.99

3.89

3.81

3.78

3.82

3.78

3.73

3.68

3.63

3.57

3.67

3.70

3.98

4. IS)

4.29

4.31

4.35

4.43

4.53

4.59

4.61

4.95

5.19

5.29

5.31

-

-

Mar.

5.26

5. 23

5.13

5.07

4.97

4.87

4.81

4.73

4.61

4.50

4.41

4.31

4.22

4.13

4.03

3.93

3.83

3.76

3.67

3.60

3.56

3.93

4.11

4.13

4.19

4.19

4.18

4.13

4.09

4.03

3.95

Apr.

3.90

3.85

3.81

3.75

3.72

3.67

3.62

3.55

3.51

3.53

3.51

3.50

3.45

3.41

3.37

3.37

3.35

3.34

3.28

3.22

3.19

3.16

3.15

3.11

3.13

3.19

3.17

3.15

3.13

3.10

-

May

3.07

3.03

3.05

3.03

3.03

3.11

3.15

3.17

3.15

3.16

3.15

3.11

3.15

3.13

3.08

3.03

3.02

2.97

2.91

2.86

2.82

2.78

2.70

2.66

2.59

2.52

2.48

2.64

2.84

2.94

3.02

June

3.04

3.02

3.00

2.96

2.90

2.85

2.79

2.72

2.66

2.60

2.60

2.55

2.52

2.50

2.45

2.40

2.48

2.46

2.42

2.46

2.62

2.72

2.76

2.80

2.77

2.77

2.74

2.69

2.64

2.60

-

July

2.54

2.48

2.45

2.40

2.35

2.35

2.36

2.34

2.32

2.29

2.25

2.20

2.16

2.10

2.06

2.02

2.00

1.97

1.95

1,90

1.86

1.84

1.82

1.79

1.76

1.72

1.74

1.74

1.72

1.70

1.68

Aug.

1.64

1.62

1.6O

1.59

1.56

1.58

1.56

1.54

1.52

1.50

1.48

1.46

1.44

1.42

1.41

1.40

1.38

1.37

1.38

1.37

1.35

1.34

1.33

1.34

1.35

1.35

1,36

1.41

1.41

1.40

1.38

Sept.

1.37

1.36

1.35

1.34

1.34

1.32

1.30

1.29

1.28

1.27

1.26

1.25

1.24

1.24

1.22

1.20

1.18

1.16

1.15

1.14

1.12

1.14

1.15

1.13

1.12

1.26

1.30

1.42

1.51

1.59

-
118 LAKE WASHINGTON BASIN

Sammamish River near Redmond, Wash.

Location.- Water-stage recorder, lat. 47°40'10", long. 122°07'25", in NEij sec. 11, T. 25 

W., K. 5 E., 500 feet downstream from Bear Creek and half a mile west of Redmond.

Drainage area.- 140 square miles.

Records available.- January 1939 to September 1948.

Extremes.- Maximum discharge during year, 860 second-feet Jan. 10, 11; maximum gage 

height, 7.63 feet Jan. 10; minimum, 71 second-feet Oct. 1 (gage height, 1.24 feet). 

1939-48: Maximum discharge, 924 second-feet Dec. 15, 16, 1946 (gage height, 640 

feet, datum then in use); minimum observed, 51 second-feet Sept. 27, 30, Oct. 1, 1939.

Remarks.- Records good except those for periods of shifting control or no gage-height 

record, which are fair. Some small diversions frqm tributaries for irrigation and 

domestic use. Slight regulation on tributaries.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

72

73

S4

83

83

83

81

81

83

81

81

80

78

84

83

109

132

165

358

a330

a390

a420

a440

a 450

3450

a380

a330

a 300

294

301

322

Nov.

423

436

449

463

463

477

490

516

529

542

555

542

555

581

581

581

581

607

620

607

594

581

568

568

555

542

542

529

516

516

-

Dec.

555

542

555

542

542

529

542

529

529

516

516

503

516

516

503

516

529

542

555

542

542

542

555

594

594

581

581

607

633

633

633

Jan.

687

726

752

793

806

819

832

846

832

846

860

846

832

819

806

793

766

752

726

713

700

687

687

673

647

633-

620

607

594

594

568

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

Jnne ..........................

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

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

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

Water year 1947-48 ..........

Feb.

568

555

542

542

529

516

503

529

555

542

529

516

503

503

542

555

633

647

647

647

647

673

687

673

687

766

780

780

766

.

-

Secondfoot-days

6,281

16,109

17,114

118,536

22 , 862

17,562

19 381

14J523

13,112

6 ,236

3,985 

4,121

151,575

Mar.

766

752

739

726

713

700

687

673

660

647

633

620

607

594

581

568

555

542

529

529

542

633

620

620

620

607

594

594

581

581

568

Maximum

450

620

633

748

860

780

766

555

503

436

280

143

242

860

Apr.

555

555

542

529

529

516

516

503

503

516

503

490

490

477

463

477

477

463

449

449

436

436

449

449

463

477

463

463

449

436

-

May

436

423

436

436

436

490

477

463

449

449

436

436

463

449

436

423

423

409

395

395

380

365

358

345

336

322

329

463

503

490

463

Minimum

72

423

503

61

568

503

529

436

322

287

143

119

117

72

June

436

423

409

395

380

365

350

336

329

315

329

322

315

308

294

308

358

322

3O8

315

380

380

365

350

343

336

322

308

301

287

-

Mean

203

S37

552

325

737

606

625

484

423

343

201

129

137

414

July

28C

26f

25f

25C

25C

25C

26E

25 F

24?

24?

226

21F

204

197

197

190

18*

177

18*

177

16F

16F

160

15*

148

148

171 16E154

148

143

Per 

square 

mile

1.45

3.84

3.94

2.32

5.26

4.33

4.46

3.46

3.02

2.45

1.44

.921

.979

2.96

Aug.

138

138

138

139

133

138

133

130

126

124

123

122

120

119

121

120

119

120

130

127

127

127

122

128

132

127

130

143

133

130

128

Sept.

127

126

129

129

127

125

124

123

122

120

119

118

117

117

120

119

118

119

119

118

119

130

129

128

124

148

219

242

242

204

-

Runoff

Inches

1.67

4.28

4.55

31.49

6.07

4.67

5.15

3.86

3.48

2.73

1.66

1.06

1.09

40.27

Ac re- feet

12,460

31,950

33,950

235,100

45,350

34,830

38,440

28,810

26,010

20,410

12,370

7,900

8,170

300,600

a No gage-height record; discharge computed on basis of records for Sammamish Lake. 

Note.- Shifting-control method used Oct. 16-19, Oct. 29 to Feb. 13, Feb. 16 to tvr. 13.
LAKE WASHINGTON BASIN 119

Samroamish River at Bothell, Wash.

Location.- Water-stage recorder, lat. 47°45'00" , long. 122 0 11'30", in NWp3E£ sec. 8. T. 26 

N., R. 5 E., in Bothell, a quarter of a mile downstream from North Creek, and 4^ miles 

upstream from mouth. Datum of gage is at mean lower low water at Seattle (Corps of 

Engineers bench mark).

Drainage area.- 199 square miles.

Records available.- October 1939 to September 1948.

Extremes.- Maximum discharge during year, 1,210 second-feet Jan. 8 (elevation, 31.4 feet); 

minimum not determined, probably occurred sometime Oct. 1 during period of no gageheight record.

1939-48: Maximum discharge, 1,290 second-feet Feb. 2, 1947 (elevatior, 31.81 feet); 

minimum, 63 second-feet Aug. 30, 1944; minimum elevation, 24.29 feet Aug. 26, 1947.

Remarks.- Records excellent except those for periods of shifting control or no gage-height 

record, which are fair. No known diversion or regulation.

Rating table, water year 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

24.5 98 26.0 282 29. O 751 

24.7 120 26.5 352 30.0 937 

25.0 155 27.0 424 31.4 1,210 

25.5 217 28.0 579

Discharge, in second-feet, water year October 1947 to September 194?

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

98 

100 

110 

120 

120

120

115 

115 

115 

115

115 

110 

110 

130 

130

150 

200 

270 

370. 

460

540 

580 

600 

610 

620

500 

410 

340 

338 

366 

409

Nov.

563 

531 

531 

531 

515

563 

579 

595 

579 

629

612 

595 

629 

697 

697

663 

646 

697 

697 

680

663 

646 

612 

612 

595

595 

579 

563 

547 

579

Dec.

663 

629 

680 

646 

612

595 

629 

595 

612 

595

579 

563 

612 

646 

612

612 

715 

715 

751 

715

697 

680 

733 

842 

805

751 

787 

861 

880 

861 

842

Jan.

975 

1,070 

1,090 

1,090 

1,090

1,130 

1,170 

1,210 

1,200 

1,200

1,200 

1,200 

1,100 

1,070 

1,050

1,010 

975 

937 

899 

861

823 

823 

842 

823 

787

751 

715 

697 

697 

697 

663

Feb.

680 

670 

650 

650 

620

6OO 

580 

620 

660 

640

620 

600 

580 

580 

630

650 

730 

760 

770 

780

810 

840

900 

860 

940

1,000 

1,000 

980 

980

u__x w SecondUonth foot-days

Ootc 

Nove 

Dece

Ca

Janr 

Febi 

Hare 

Apri 

May 

June 

July 

Angu 

Sept

l?a

mber ......................

lendar year 1947 

ary

1

embsr .....................

8,486 

18,220 

21,515

47,862

29,845 

21,380 

22,876 

17,736 

17,246 

12,447 

7,689 

5,538 

5,507

ter year 1947-48 .......... 188,485

Mar.

980 

950 

920 

900 

870

840 

810 

769 

751 

715

S97 

680 

663 

646 

629

612 

595 

595 

579 

595

680 

937 

861 

787 

751

715 

697 

680 

663 

663 

646

Maximum

620

697 

880

1,250

1,210 

l.OOO 

980 

663 

S80 

579 

317 

198 

366

1,210

Apr.

612 

646 

646 

629 

629

629 

663 

612 

629 

646

612 

595 

579 

563 

547

563 

563 

563 

547 

515

515 

515 

547 

579 

629

646 

612 

579 

579 

547

May

547 

515 

595 

579 

579

697 

646 

595 

563 

563

547 

563 

629 

579 

547

531 

515 

484 

469 

454

439 

439 

424 

409 

394

380 

394 

751 

880 

842 

697

Minimum

98

515 

563

79

663 

580 

579 

515 

380 

324 

198 

161 

149

98

June

579 

531 

499 

469 

454

424 

409 

380 

366 

352

409 

394 

394 

380 

352

394 

515 

424 

380 

409

484 

454 

439 

409 

394

380 

366 

352 

331 

324

Mean

274 

607 

694

405

963 

737 

738 

591 

556 

415 

248 

179 

184

515

July Aug.

310 191 

296 191 

289 191 

289 191 

289 191

317 198 

317 191 

303 179 

282 179 

276 173

269 173 

256 173 

250 173 

243 173 

236 173

230 173 

224 167 

224 167 

230 185 

230 179

217 179 

210 179 

210 167 

204 179 

198 185

198 173 

243 173 

230 191 

217 173 

204 167 

198 161

Per 

square 

mile

1.38 

3.05 

3.49

2.04

4.84 

3.70 

3.71 

2.97 

2.79 

2.09 

1.25 

.899 

.925

2.59

Sept.

161 

161 

167 

161 

155

155 

155 

149 

149 

149

149 

149 

149 

149 

161

155 

155 

155 

149 

149

161 

185 

179 

173 

167

256 

345 

366 

324 

269

Runoff

In-hes Acre-feet

1.59 16,830 

3.41 36,140 

4,02 42,670

27.64 293,300

E.58 59,200 

4.00 42,410 

4.28 45,370 

3.31 35,180 

3.22 34,210 

2.33 24,690 

1.44 15,250 

1.03 10,980 

1.03 10,920

3E.24 373,800

Note.- No gage-height record Oct. 1-28, Jan. 9-13, Feb. 2 to Mar. 7j discharge computed on basis 

of recorded range in stage and records for station near Redmond. Shifting-control irethod used Oct. 

29 to Jan. 8, July 4 to Sept. 7.

939922 O - 51 - 9
120 LAKE WASHINGTON BASIN

Bear Creek near Redmond, Wash.

Location.- Water-stage recorder, lat. 47°43'00", long. 122°04'30", In SW£ sec. 20, T. 26 

N., K. 6 E., 1 mile upstream from Cottage Lake Creek and 3j miles north of Redmond.

Records available.- June 1945 to September 1948.

Extremes.- Maximum discharge during year, 130 second-feet Jan. 4 (gage height, 3.29 feet) 

minimum, 7.9 second-feet Sept. 8, 11, 12, 14, 16.

1945-48: Maximum discharge, 196 second-feet Feb. 2, 1947 (gage height, 3.83 feet); 

minimum, 3.1 second-feet Aug. 22, 1946 (gage height, 1.34 feet).

Remarks.- Records fair. No known diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

9.6 

11 

14 

13 

12

11 

11 

11 

12 

12

13 

12

12 

12 

22

34 

39 

47 

82 

53

34 

22 

18 

14 

11

9.6 

8. -8 

11 

11 

17 

26

Nov.

64 

59 

58 

54 

45

52 

59 

64 

58 

64

61 

52 

58 

84 

85

73 

67 

69 

58 

49

41 

35 

32 

28 

26

27 

26 

25 

22 

29

Dec.

50 

48 

60 

53 

45

39 

44 

44 

44 

45

41 

37 

46 

54 

49

52 

63

67 

66

61

58 

54 

61 

85 

79

67 

71 

79 

87 

79 

77

Jan.

100 

117 

115 

123 

112

113 

116 

110 

92 

103

99 

81 

67 

56 

49

42 

38 

34 

31 

28

27 

34 

44 

41 

35

31 

28 

26 

28 

32 

28

Feb.

28 

26 

24 

28 

26

24 

24 

42 

59

52

44 

38 

35 

39 

58

65 

111 

106 

87 

73

75 

78 

83 

71 

77

119 

102 

83 

68

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-46

Peak discharge (base, l?0 sec. -ft. .- Jan.

sec. -ft. 

f Computed on basis of partly estimated ga 

Note.- No gage-height record May 21 to Jul

Mar.

59 

56 

52 

46 

40

38 

36 

34 

31 

28

27 

26 

25 

23 

24

24 

22 

24 

25 

28

45 

83 

71 

59 

53

45 

38 

33 

32 

34 

29

Apr.

27 

32 

33 

32 

31

30 

30 

28 

32 

41

37 

34 

31 

28 

27

30 

30 

30 

26 

24

23 

25 

34 

38 

46

51 

45 

39 

36 

33

May

35 

30 

44 

44 

46

74 

70 

60 

50 

46

40 

40 

45 

42 

35

33 

31 

28 

26 

25

23 

22 

21 

21 

20

20 

25 

70 

96 

70 

45

Second- Maximum 

foot-days

625.0 82 

1,524 85 

1,805 87

10,441.8 181

1,980 123 

1,745 119 

1,190 83 

983 51 

1,277 96 

736 50 

386.2 18 

340.8 15 

441.2 50

13,033.2 123

June

36

30 

26 

22 

20

19 

17 

16 

15 

14

23 

23 

22 

20 

19

26 

38 

32 

27 

35

50 

40 

33 

28 

24

20 

18 

16 

14 

13

July

12 

f!2 

f!2 

13 

14

17 

18 

16 

15 

14

13 

12 

12 

11 

11

11 

10 

10 

12 

12

11 

11 

11 

11 

9.6

9.6 

16 

14 

13 

12 

11

Aug.

10 

10 

10

11

11

12 

11 

11 

9.6 

9.6

9.6 

9.6 

9.6 

9.6 

11

11 

9.6 

9.6 

13 

12

12

12 

11 

12 

12

11 

13

15 

12 

11 

10

Sept.

9.6 

9.6 

10 

9.6 

9.6

9.2 

8.8 

8.8 

8.8 

8.8

8.3 

8.8 

8.8 

8.3

10

9.6 

9.6 

9.6 

9.2 

9.2

11 

17 

16 

17 

12

30 

40 

50 

39 

25

Minimum Mean *%£%£

8.8 20.2 1,240 

22 50.8 3,020 

37 58.2 3,580

6.1 28.6 20,700

26 63.9 3,930 

24 60.2 3,460 

22 38.4 2,360 

23 32.8 1,950 

20 41.2 2,530 

13 24.5 1,460 

9.6 12.5 766 

9.6 11.0 676 

8.3 14.7 875

8.3 35.6 25,850

4 (10:30 a.m.) 130 sec. -ft.; Feb. 26 7:30 a.m.) 123

ge-helght record, 

y 1, July 4 to Aug. 16; discharge computed on basis of

records for station at Redmond.
LAKE WASHINGTON BASIN 121

Bear Creek at Redmond, Wash.

Location.- Water-stage recorder, lat. 47°40'10", long. 122°06'30", in NEij sec. 12, T. 25 

N., K. 5 E., half a mile east of Redmond and three-quarters of a mile upstream from 

mouth.

Drainage area.- 47.0 square miles.

Records available.- June 1945 to September 1948.

Extremes.- Maximum discharge during year, 349 second-feet Jan. 4, Feb. 26; maximum gage 

neignt, 5.45 feet Feb. 26; minimum discharge, 22 second-feet Oct. 1 (gag3 height, 

2.06 feet).

1945-48: Maximum discharge, 416 second-feet Feb. 2, 1947 (gage height, 6.10 feet); 

minimum, 13 second-feet Aug. 26, 1947 (gage height, 1.88 feet).

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

Many small diversions for irrigation and domestic use. No regulation.

Discharge, in second-feet, water year October 1947 to September 194F

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

25 

36 

32

31

28 

27 

27 

31 

31

33 

30 

32 

32 

43

70 

74 

84 

192 

128

87 

65 

59 

50 

44

40 

37 

43 

40 

50 

61

Nov.

148 

132 

135 

124 

101

110 

116

126 

114 

125

122

109 

109 

160 

172

156 

146 

166 

148 

130

111 

100 

89 

85 

81

85 

78 

74 

70 

82

Dec.

131

114 

135 

120 

106

97

113 

104 

107 

108

107 

97 

114 

130 

115

121 

148

152 

150 

137

132 

129 

144 

198 

172

154

172 

198 

216 

198 

204

Jan.

274 

310 

310 

330 

310

299 

310 

289 

246 

279

274 

228 

192 

166 

149

134 

121 

110 

101 

93

89 

107 

125 

120 

105

95 

89 

85 

87 

102 

89

Month

Octc 

Move 

Dece

Ca

Jamj 

Febi 

Marc 

Apr! 

Bay 

June 

Julj 

Augt 

Sept

Wa

lendar year 1947 

ary

st ........................

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

ter year 1947-48 ..........

Feb.

91 

87 

84 

99 

91

80 

79 

128 

155 

131

114 

104 

1OO 

104 

156

167 

289 

274 

222 

192

204 

210 

228 

198 

211

330 

279 

228 

192

Secondfoot-days

1,586 

3,504 

4,323

27,416.5

5,618 

4,827 

3,433 

2,897 

3,515 

2,223 

1,184 

1,058 

1,160

35,328

Mar

166 

166 

148

134 

118

116 

112 

105 

96 

88

88 

82 

81

77 

77

74 

71 

76 

74 

80

123 

234 

172 

141

136

117 

104 

95 

92 

101 

89

Maximum

192 

172 

216

406

330 

330 

234 

146 

272 

146 

56 

46 

118

330

Apr.

85 

98 

98 

93 

93

91 

88 

82 

96 

118

102 

96 

91 

84 

82

96 

94 

88 

80 

76

75 

83 

98 

100 

122

146 

122 

113 

109 

98

May

99 

89 

118 

111 

114

185 

154 

130 

114 

112

101 

106 

122 

114 

99

93 

90 

81 

77 

75

69

66 

63 

60 

57

54 

64 

232 

272 

229 

165

Minimum

24 

70 

97

15.5

85 

79 

71 

75 

54 

44 

30 

30 

26

24

June

125 

98 

84 

74 

65

59 

54 

49 

46 

44

71 

65 

62 

57 

50

79 

117 

83 

69 

92

146 

113 

95 

82

74

66 

59 

53 

48 

44

Mean

51.2 

117 

139

75.1

181 

166 

111 

96.6 

113 

74 .,1 

38.2 

34.1 

38.7

96.5

July Aug.

42 31 

41 31 

40 32 

41 33 

42 34

52 37 

56 34 

50 32 

44 31 

42 30

39 30 

37 30 

35 30 

33 30 

33 33

32 33 

31 30 

31 30 

36 39 

36 36

33 37 

32 37 

33 34 

31 40 

30 40

30 36 

50 39 

44 1 46 

39 38 

36 34 

33 31

Per 

square 

mile

1.09 

2.49 

2.96

1.60

3.85 

3.53 

2.36 

2.06 

2.40 

1.58 

.813 

.726 

.823

2.05

Sept.

30 

29 

32 

31 

30

28 

27 

27 

26 

26

26 

27 

26 

26 

29

28 

28 

28 

28 

27

30 

38 

36 

36 

31

64 

94 

118 

91 

63

Runoff

Imhes

1.25 

2.77 

3.42

21.68

4.45 

3.82 

2.72 

2.29 

2.78 

1.76 

.94 

.84 

.92

27.96

Peak discharge (base, 300 sec. -ft.)-- Jan. 4 (1 p.m.) 349 3ec.-ft.; Jan. 10 (5 to 7 p.n

Acre-feet

3,150 

6,950 

8,570

54,380

11,140 

9,570 

6,810 

5,750 

6,970 

4,410 

2,350 

2,100 

2,300

70,070

i.) 310

Mote.- Shifting-control method used Oct. 19-31, Feb. 26 to Sept. 30.
122 LAKE WASHINGTON BASIN

North Creek near Bothell, Wash.

Location.- Water-stage recorder, lat. 47°47'30", long. ISS'll'SO", on line between sees. 

29 and 32, T. 27 N., R. 5 E., 2 miles riorth of Bothell and 2? miles upstream from 

mouth.

Drainage area.- 18.7 square miles.

Records available.- July 1945 to September 1948.

Extremes.- Maximum discharge during year, 323 second-feet Oct. 19 (gage height, 4.47 feet); 

minimum, 2.4 second-feet Sept. 9 (gage height, 0.72 foot).

1945-48: Maximum discharge, 420 second-feet Feb. 2, 1947 (gage height, 5.29 feet); 

minimum, 1.0 second-foot Aug. 10, 1946 (gage height, 0.45 foot).

Remarks.- Records fair. Many small diversions for irrigation and domestic use. Slight 

regulation for farm use.

Discharge, in second-feet, water year October 1947 to September 1948

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.

7.3

10

11.5

9.7

9.0

8.0

8.0

8.7

10.5

10.5

10.5

9.0

10

9.7

34

42

59

81

150

40

23

19

21

18

15

13

12.5

16.5

15

26

39

Nov.

71

40

30

24

29

53

58

46

33

54

37

32

59

59

56

40

39

46

40

40

32

27

22

20

20

21

27

21

18.5

40

-

Dec.

54

45

66

49

39

34

48

39

49

45

40

34

54

62

53

60

92

100

113

86

79

72

98

126

95

77

119

126

114

95

98

Jan.

172

218

167

176

134

161

171

156

114

130

110

88

76

688

64

58

53

50

46

44

42

58

65

60

52

45

41

38

44

45

41

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 .....

Feb.

43

40

38

41

40

33

41

84

92

72

59

52

49

66

83

97

191

141

98

86

98

102

106

87

101

143

110

84

75

-

Secondfoot-days

756.4

1,134.5

2,261

12,209.4

2,787 _

2 352

1^551

1,515

1,825.5

936.5

341.6

' 335.0

415.8

16,211.3

Mar.

66

68

62

56

51

48

45

44

38

37

36

34

33

31

28

26

25

31

36

44

119

133

85

68

61

50

44

40

40

37

35

Maximum

150

71

126

406

218

191

133

83

212

65

18.5

17

57

218

Apr.

32

44

52

47

48

50

69

50

60

58

52

49

45

42

39

44

44

40

36

32

32

37

46

72

76

83

69

61

57

49

-

May

45

38

66

58

64

87

70

57

49

48

43

59

70

55

44

44

40

35

32

29

25

22

21

20

17

16.5

33

181

212

157

88

Minimum

7.3

18.5

34

4.7

38

33

25

32

16.5

12.5

8.0

8.3

5.8

5.8

June

65

51

44

36

31

25

21

18

16

14.5

32

25

29

25

21

53

64

44

34

46

47

36

30

25

24

21

18

15

13.5

12.5

-

Mean

24.4

37.8

72.9

33.5

89.9

81.1

50.0

50.5

58.9

31.2

11.0

10.8

13.9

44.3

July

12

11

11

11

12

17

17.5

13.5

12.5

11.5

11

11

10

9.0

8.3

8.7

8.3

10

12

10.5

9.7

8.7

9.0

8.3

8.0

10

18.5

12.5

11

9.4

8.7

Per 

square 

mile

1.30

2.02

3.90

1.79

4.81

4. 34

2!67

2.70

3.15

1.67

.588

.578

.743

2.37

Aug.

£

t

1

1C

.7

.7

.4

.5

11

10.5

i

£

£

£

.4

.3

.7

.7

9.0

£

c

c

.7

.0

.4

11

9.7

a

£

13

.O

.7

11

13

15

11

15 .5

17

13

13

15

11

9 .7

9.4

Sept.

8.7

8.7

9.4

8.7

8.0

7.6

7.6

7.6

5.8

7.0

7.3

8.0

7.3

7.3

12.5

10.5

9.4

9.0

8.7

8.7

11-5

Ib

12.5

11.5

11

50

36

57

25

17.5

-

Runoff

Inches

1.50

2.26

4.50

24.30

5.54

4.68

3.08

3.01

3.63

1.86

.68

.67

.83

32.24

Acre-feet

1,500

2,250

4,480

24,220

5,530

4,670

3,080

3,000

3,620

1,860

678

664

825

32,160

Fe=ik discharge

set-.-ft.; May 29 (12 m. ) 257 sec.-ft.

i.-ft.).- Oct. 19 (1 .) 323 sec.-ft.; Mar. 21 (8:30 p.m.) 257
LAKE WASHINGTON BASIN 123

McAleer Creek near Bothell, Wash.

Location.- Water-stage recorder, lat. 47°45'30", long. 122°17'25", In NEi sec. 9, T. 26 

M., K. 4 E., 1 mile upstream from mouth and 4 miles west of Bothell.

Drainage area.- 8.7 square miles.

Records available.- June to October 1945, December 1946 to September 1948.

Extremes.- Maximum discharge during year, 67 second-feet Oct. 18 (gage height, 1.86 feet), 

rrom rating curve extended above 18 second-feet; minimum, 2.6 second-feet June 9.

1945-48: Maximum discharge, 102 second-feet Feb. 1, 1947 (gage height, 2.02 feet), 

from rating curve extended above 18 second-feet; minimum, 1.6 second-feet Aug. 20-22, 

1945. 

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

control, which are fair. Many small diversions for irrigation and domestic use. No 

regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

3.8

4.2

4.0

4.0

3.8

3.8

4.0

4.4

4.4

4.4

4.4

4.9

4.6

8.0

8.0

10

21

22

16.5

12.5

10

8.4

7.0

6.5

5.9

5.6

6.2

5.6

7.0

8.0

Nov.

12

11

9.7

9.2

8.0

8.0

9.2

8.4

10

11

10.5

9

10

11

12.5

12

11.5

11

11

10

9

8.5

8

7.5

7

7.5

7

7

7.5

9

-

Dec.

10

11

12

11

10

10

12.5

12

11.5

12

11.5

11

12.5

12.5

12.5

12.5

18

19.5

19

18

19

17.5

21

26

24

22

26

26

26

23

25

Jan.

32

34

34

37

32

32

34

31

28

31

27

22

20

16.5

13

11

9.2

9.2

8.4

8.0

. 7.4

8.8

9.2

9.2

8.6

8.0

7.4

7.0

7.4

7.7

7.4

Month

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

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

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

Calendar year 1947 .........

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

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

llaroh .........................

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

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

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

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

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

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

Water year 1947-48 .....

Feb.

7.4

7.4

7.O

8.8

7.4

7.0

8.0

15

16.5

17

15.5

14

12

13

17

18

27

28

25

23

23

22

23

21

21

22

21

18

16

_

-

Secondfoot-days

226.2

283.0

514 ^

' 270

557.6

481.0

294.1

290.9

330.4

214.1

124.2

120.0

135.4

3,571.4

Mar.

13.5

12.5

11.5

10.5

9.7

9.2

8.8

8.4

7.4

6.8

7.0

6.8

6.8

6.8

6.2

5.9

5.9

6.5

6.2

6.5

12.5

17

16

15

14.5

12.5

11

10

8.0

7.7

7.0

Maximum

22

12.5

26

66

37

28

17

14

22

19.5

5.4

4.9

10

37

Apr.

6.8

7.4

8.0

7.7

8.4

9.7

11.5

11

12

13

11

10

10

9.2

9.2

9.2

9.2

8.4

8.0

7.4

7.4

8.4

8.8

11

11.5

14

12

11

10

9.7

-

May

8.8

8.4

12

11

12

14

13

11

10

10

9.2

9.7

11.5

10.5 9.7'

9.7

8.8

8.4

8.0

7.7

7.0

6.8

6.8

6.5

6.2

6.2

7.0

15.5

21

22

22

Minimum

3.3

7

10

2.1

7.0

7.0

5 9

6.8

6.2

4.2

3.2

3.5

3.2

3.2

June

19.5

15.5

12.5

9.7

8.0

6.8

5.9

5.6

4.9

4.6

6.5

5.6

6.2

5.6

5.1

7.0

8.0

7.4

6.8

7.0

7.4

7.0

6.5

5.9

5.6

5.4

4.9

4.6

4.4

4.2

-

Mean

7.30

9.43

16.6

8.96

18.0

16.6

9.49

9.70

10.7

7.14

4.01

3.87

4.51

9.76

July

4.0

3.8

3.5

4.0

3.8

5.4

5.4

5.1

4.6

4.4

4.4

4.2

4.0

3.8

3.6

3.6

3.3

3.6

4.2

3.8

3.6

3.6

3.5

3.3

3.2

3.6

5.1

4.4

4.0

3.8

3.6

Per 

square 

mile

0.839

1.08

1.91

1.03

2.07

1.91

1.09

1.11

1.23

.821

.461

.445

!si8

1.12

Aug.

3

3

3

3

3

4

3

3

3

3

3

3

3

3

4

3

3

3

4

4

4

4

3

4

4

4

4

4

4

3

3

5

6

6

6

8

0

6

5

5

5

6

5

8

6

2

8

6

8

0

0

9

2

8

6

2

0

4

2

0

8

8

Sept.

3.6

3.8

3.8

3.6

3.5

3.5

3.3

3.3

3.3

3.2

3.5

3.5

3.5

3.8

4.9

4.0

3.8

3.8

3.6

3.6

4.2

4.6

4.2

4.0

4.0

7.7

8.0

10

8.4

7.4

-

Runoff

Inches

0.97

1.21

2.20

13-98

2.38

2.06

1.26

1.24

1.41

.92

.53

.51

.58

15.27

Acre-feet

449

561

1,020

6,480

1,110

954

583

577

655

425

246

238

269

7,090

Note.- No gage-height record Nov. 9 to Dec, 1; discharge computed on basis of recorded range in 

stage and records for stations on Bear Creek at and near Redmond. Shifting-control method used 

Oct. 1 to Nov. 8, Dec. 2 to Jan. 17, Apr. 23 to July 25.
124 SNOHOMISH RIVER BASIN

South Pork Skykomish River near Skykomish, Wash.

Location.- Water-stage recorder,, lat. 47°42'20", long. 121°18'30", in NW^NE^ sec. 31, T. 

26 N., R. 12 E., a quarter of" a mile downstream from Poss River and 2\ iriles east of 

Skykomish.

Drainage area.- 135 square miles.

Records available.- August 1929 to September 1931, July 1946 to September 1948.

Extremes.- Maximum discharge during year, 8,290 second-feet Oct. 19 (gage height, 9.0" 

reet); minimum, 243 second-feet Feb. 6 (gage height, 1.52 feet).

1929-31, 1946-48: Maximum discharge, that of Oct. 19, 1947; minimum not determined, 

probably occurred sometime during period Jan. 10-31, 1930, when stage-discharge relation was affected by ice.

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

fair. No diversion or regulation.

Rating table, water year 1947-48 (gage height. In feet, 

and discharge, In second-feet)

1.5 

1.7 

2.0 

2.5

238

285

363

523

3.0 

3.5 

4.0 

4.5

733

980

1,270

1,600

5.0 

6.0 

7.0 

8.1

1,960

2,880

4,190

6,200

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

250 

1,160 

2,100 

1,300 

1,000

733 

581 

561 

581 

542

487 

437 

453 

421 

712

1,120 

1,530 

2,020 

5,070 

2,290

1,640 

1,270 

1,040 

880 

740

780 

720 

700 

680 

700 

800

Nov.

1,000 

900 

900 

840 

760

805 

1,400 

3,750 

2,100 

1,900

2,000 

1,500 

1,400 

1,200 

1,000

900 

1,100 

1,400 

1,060 

860

700 

580 

520 

480 

640

1,300 

1,100 

970 

880 

850

Dec.

880 

820 

780 

720 

670

620 

580 

560 

540 

510

470 

450 

1,050 

1,200 

1,060

1,000 

1,500 

1,440 

1,250 

1,000

840' 

740 

740 

1,200 

1,100

1,000 

1,080 

1,200 

940 

820 

740

Jan.

850 

1,100 

860 

800 

640

640 

720 

680 

561 

542

505 

470 

437 

421 

406

391 

377 

363 

355 

344

336 

355 

421

470 

421

377 

360 

352 

344 

339 

320

Month

Ootc 

Nove 

Dece

Cs

Jam 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augi 

Sep1

Hi

mber ......................

ilendar year 1947 .........

ary

tember .....................

iter year 1947-48 ..........

Feb.

313 

300 

292 

290 

280

266 

268 

275 

275 

268

259 

256 

254 

273 

341

341 

470 

643 

487 

421

437 

665 

561 

487 

487

880 

733 

581 

505

Secondfoot-days

33,298 

34,795 

27,500

357,415

15,557 

11,908 

11,630 

21,503 

62,655 

88,890 

33,016 

16,005 

11,079

367,836

Mar.

470 

453 

421 

391 

377

360 

360 

347 

333 

318

308 

300 

300 

295 

292

288 

285 

290 

290 

288

435 

601 

453 

406 

406

391 

391 

421 

470 

453 

437

Maximum

5,070 

3,750 

1,500

5,070

1,100 

880 

601 

1,500 

6,000 

4,850 

1,810 

780 

542

6,000

Apr.

437 

437 

437 

406 

406

355 

341 

331 

341 

360

363 

363 

363 

377 

577

1,210 

1,120 

955 

930 

1,000

1,270 

1,500 

1,390 

1,300 

1,150

955 

830 

733 

665 

601

May

581 

542 

687 

805 

805

1,270 

1,360 

1,210 

1,150 

1,030

955 

1,030 

1,270 

1,240 

1,150

1,330 

1,530 

1,420 

1,330 

1,740

2,380 

2,470 

2,120 

2,600 

3,700

4,500 

5,600 

6,000 

4,510 

3,230 

3,110

Minimum

250 

480 

450

243

320 

254 

285 

331 

542 

1,810 

687 

406 

285

250

June

3,230 

3,480 

3,750 

3,110 

3,110

3,890 

4,680 

4,850 

4,680 

4,510

4,190 

3,350 

3,110 

2,570 

2,380

2,770 

2,880 

2,380 

2,290 

2,290

2,670 

2,380 

2,120 

2,040 

1,880

1,810 

1,880 

2,120 

2,290 

2,200

Mean

1,074 

1,160 

887

979

502 

411 

375 

717 

2,021 

2,963 

1,065 

516 

369

1,005

July

1,810 

1,600 

1,500 

1,390 

1,240

1,390 

1,390 

1,240 

1,150 

1,180

1,150 

1,030 

1,000 

1,000 

1,030

1,060 

1,120 

1,150 

1,000 

955

905 

880 

855 

756 

710

687 

880 

805 

710 

710 

733

Per 

square 

mile

7.96 

8.59 

6.57

7.25

3.72 

3.04 

2.78 

5.31 

15.0 

21.9 

7.89 

3.82 

2.73

7.44

Aug.

756 

710 

665 

643

601

780 

622 

561 

542 

523

487 

487 

470 

470 

523

470 

437 

437 

470 

437

437 

437 

421 

406 

437

421 

453 

542 

470 

453 

437

Sept.

391 

391 

453 

406 

363

347 

336 

333 

333 

331

326

323 

315 

313 

438

377 

336 

308 

290 

285

313 

391 

377 

344 

315

373 

487 

542 

505 

437

Runoff

Inches

9.17 

9.59 

7.58

91.48

4.29 

3.28 

3.20 

5.92 

17.26 

24.49 

9.10 

4.41 

3.05

101.34

Ac re- feet

66,050 

69,010 

54,550

708,900

30,860 

23,620 

23,070 

42,650 

124,300 

176,300 

65,490 

31,750 

21,970

729,600

Peak discharge (base, 5,500 sec.-ft.).- Oct. 19 (4:30 a.m.) 8,290 sec.-ft.; probably Nov. 8 (time 

and discharge unknown); Hay Zti (time and discharge unknown).

Note.- No gage-height record Oct. 23 to Nov. 5, Nov. 7 to Jan. 8, May 24-28; discharge computed on 

basis of recorded range In stage and records for station near Index.
SNOHOMISH RIVER BASIN 125

South Pork Skykomish River near Index, Wash.

Location.- Water-stage recorder, lat. 47°48'20", long. 121°32'40", in NE^ sec. 29, T. 27 

N. , K. 10 E., 600 feet upstream from Sunset Palls, 2 miles upstream from effluence 

with North Pork, 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, April 1911 to September 1948.

Average discharge.- 40 yeans, 3,318 second-feet.

Extremes.- Maximum discharge during year, 26,900 second-feet Oct. 19 (gage height, 17.14 

reet); minimum, 444 second-feet Oct. 1.

1902-5, 1911-48: 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 excellent except those for periods of no gage-height record, which are 

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 1947-48 (gage height, In feet, 

and discharge, In second-feet)

2.0 370 2.8 840 5.0 2,500 9.0 7,150 

2.2 476 3.0 980 6.0 3,430 10.0 8,740 

2.4 590 3.5 1,330 J.O 4,490 12.0 12,600 

2.6 710 4.0 1,700 8.0 5,740 14.1 17,900

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

449 

4,540 

8,280 

4,380 

2,950

2,100 

1,660 

1,470 

1,540 

1,540

1,360 

1,190 

1,120 

1,160 

1,990

4,270 

6,150 

7,690 

17 , 900 

7,150

4,970 

3,630 

3,230 

2,770 

2,420

2,770 

2,340 

2,180 

1,980 

2,020 

2,500

Nov.

3,530 

3,040 

3,040 

a2,700 

a2,400

a2,600 

5,440 

12,100 

5,870 

5,090

5,480 

4,050 

3,940 

3,530 

3,040

2,590 

3,540 

4,380 

3,330 

2,680

2,340 

2,020 

1,820 

1,700 

1,940

4,380 

3,430 

2,860 

2,500 

2,340

Dec.

2,590 

2,420 

2,340 

2,100 

1,940

1,740 

1,620 

1,540 

1,540 

1,400

1,360 

1,300 

3,210 

3,920 

3,230

3,130 

5,430 

5,350 

4,400 

3,130

2,590 

2,340 

2,370 

3,730 

3,430

2,950 

3,230 

3,830 

3,040 

2,590 

2,340

Jan.

2,700 

3,630 

2,860 

2,590 

2,180

2,180 

2,590 

2,500 

2,100 

1,980

1,820 

1,580 

1,440 

1,330 

1,220

1,160 

1,120 

1,050 

1,020 

980

945 

1,020 

1,360 

1,660 

1,500

al,350 

al,200 

al,150 

al.100 

al,030 

a970

Month £%

Octc 

Move 

Dece

Ca

Janu 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

bar ....................... ]

mber ......................

lendar year 194" 

ary

......... T -C

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

Feb.

a920 

a870 

a820 

a790 

a750

a660 

a700 

a720 

704 

656

620 

602 

596 

644 

1,080

1,220 

2,200 

3,230 

2,260 

1,740

1,660 

3,430 

a2,600 

a2,000 

a2,000

3,840 

a3,200 

a2,600 

a2,100

ond 

-days

Oi),699 

07,700 

86,130

)07,046

51,315 

45,212 

39,773 

71,500 

79,700 

13 , 900 

72,140 

33,931 

28,312

ter year 1947-48 .......... 1,039,312

Mar.

al,750 

al,550 

1,400 

1,260 

1,190

1,120 

1,160 

1,080 

1,050 

980

910 

868 

854 

847 

847

819 

812 

840 

840 

826

1,530 

3,260 

1,940 

1,540 

1,400

1,260 

1,260 

1,440 

1,780 

1,740 

1,620

Maximum

17,900 

12,100 

5,430

17,900

3,630 

3,840 

3,260 

4,610 

15,500 

11 , 900 

4,160 

1,660 

1,820

17,900

Apr.

1,580 

1,540 

1,540 

1,360 

1,260

1,160 

1,120 

1,050 

1,080 

1,220

1,260 

1,330 

1,260 

1,300 

1,800

4,270 

4,050 

3,330 

3,040 

3,230

4,050 

4,610 

4,490 

4,270 

4,050

3,230 

2,680 

2,340 

2,100 

1,900

May

1,780 

1,660 

2,120 

3,040 

2,860

4,900 

5,090 

4,050 

3,730 

3,330

3,040 

3,040 

3,730 

3,940 

3,630

4,050 

4,730 

4,490 

3,940 

4,880

7,150 

7,300 

5,870 

7,300 

10,100

11,900 

14,200 

15,500 

11,700 

8,570 

8,080

Minimum

449 

1,700 

1,300

449

945 

596 

812 

1,050 

1,660 

4,050 

1,360 

812 

532

449

June

8,370 

8,740 

7,600 

7,760 

7,600

9,780 

11,700 

11,900 

11,700 

11,500

9,960 

8,080 

7,300 

6,150 

5,610

6,710 

7,000 

5,610 

5,610 

5,480

6,570 

5,480 

4,850 

4,730 

4,380

4,050 

4,270 

4,970 

5,350 

5,090

Mean

3,539 

3,590 

2,778

2,759

1,655 

1,559 

1,283 

2,383 

5,797 

7,130 

2,327 

1,095 

944

2,840

July

4,160 

3,430 

3,230 

3,130 

2,680

3,040 

3,230 

2,770 

2,590 

2,770

2,590 

2,340 

2,180 

2,260. 

2,340

2,340 

2,340 

2,500 

2,100 

1,980

1,900 

1,860 

1,780 

1,580 

1,440

1,360 

1,940 

1,860 

1,540 

1,440 

1,440

Per 

square 

mile

9.97 

10.1 

7.83

7.77

4.66 

4.39 

3.61 

6.71 

16.3 

20". 1 

6.55 

3.08 

2.66

8.00

Aug.

1,470 

1,360 

1,260 

1,220 

1,160

1,660 

1,300 

1,120 

1,050 

980

910 

882 

861 

910 

980

980 

847 

812 

1,050 

980

1,120 

1,050 

910 

889 

1,080

1,050 

1,220 

1,470 

1,190 

1,080 

1,080

Sept. 

910 

826 

1,080 

980 

833

746 

692 

656 

632 

608

590 

567 

549 

532 

1,150

1,120 

833 

714 

626 

584

719 

1,360 

1,330 

1,120 

945

1,020 

1,780 

1,820 

1,660 

1,330

Runoff

Inches

11.49 

11.28 

9.02

103.50

5.38 

4.74 

4.17 

7.49 

18.83 

22.41 

7.56 

3.55 

2.97

108.89

Ac re- feet

217,600 

213,600 

170,800

1,997,000

101,800 

89,680 

78,890 

141,800 

356,400 

424,300 

143,100 

67,300 

56,160

2,061,000

Peak discharge (base, 10,000 see..-ft.).- Oct. 3 (5 a.m.) 10,500 sec.-ft.; Oct. 19 (5 a.m.) 26,900 

sec.-ft.; Nov. 8 (3:30 a.m.) 17,300 sec.-ft.; May 28 (3 p.m.) 16,000 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage, 1 observer's 

gage-height reading, and records for Skykomish River near Gold Bar.
SNOHOMISH RIVER BASIN

Skylcomish River near Gold Bar, Wash.

Location.- Water-stage recorder, lat. 47°50'15", long. 121°40'00", in SWi sec. 9, T. 27 

 N., H. 9 E., 2 miles southeast- of Gold Bar and 5 miles upstream from Wallace River 

and Startup. Datum of gage is 210.01 feet above mean sea level, unadjusted.

Drainage area.- 535 square miles.

Records available.- September 1928 to September 1948.

Average discharge.- 20 years, 3,645 second-feet.

Extremes.- Maximum discharge during year, 45,300 second-feet Oct. 19 (gage height, 15.67 

reetj; minimum, 771 second-feet Oct. 1 (gage height, 3.39 feet).

1928-48: 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. No diversion or regulation.

Rating table, water year 1947-4S (gage height, in feet, 

and discharge. In second-feet)

3.4 

3.7 

4.0 

4.5

5.0

780

1,070

1,400

1,980

2,600

5.5 

6.0 

7.0

s;o

9.0

3,350

4,240

6,360

8,810

11,600

10.0

11.0

12.0

13.1

15,000

18,900

23,400

29,200

Discharge, in second-feet, water year October 1947 to September 194f

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

789

9,650

17,700

7,790

4,840

3,350

2,670

2,400

2,600

2,600

2,340

2,040

1,980

1,980

3,840

7,300

9,890

12,.800

29,100

10,800

7,540

5,690

5,050

4,340

3,780

4,440

3,690

3,520

3,270

3,270

4,240

Nov.

6,360

5,260

4,940

4,340

3,780

4,140

8,700

17,700

8,810

7,790

8,550

6,360

6,360

5,580

4,740

4,050

5,530

6,820

5,160

4,240

3,600

3,110

2,880

2,670

3,120

6,820

5,470

4,440

3,870

3,600

Dec.

4,050

3,690

3,780

3,350

3,030

2,740

2,600

2,400

2,470

2,280

2,220

2,100

4,710

6,360

5,160

4,940

8,810

8,810

7,540

5,160

4,140

3,690

3,780

6,590

5,910

4,940

5,260

6,590

5,260

4,240

3,780

Jan.

4,240

6,130

4,840

4,140

3,520

3,690

4,140

4,240

3,440

3,270

2,960

2,600

2,340

2,220

2,100

1,980

1,920

1,860

1,800

1,740

1,680

1,800

2,220

2,670

2,400

2,160

1,980

1,860

1,800

1,740

1,620

Month

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

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

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

Calendar year 1947 .........

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

Februsry ......................

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

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

Mnv Hay ...........................

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

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

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

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

Water year 1947-48 ..........

Feb.

1,560

1,510

1,460

1,400

1,360

1,250

1,260

1,300

1,290

1,250

1,190

1,150

1,140

1,240

1,860

2,040

3,690

5,260

3,690

2,810

2,740

5,580

4,440

3,270

3,270

6,360

4,940

3,690

3,110

.

-

Secondfoot-days

185,289

168,790

140,380

1,616,565

85,100

75,110

65,540

113,130

274,760

331,710

111,420

58,330

52,950

1,662,509

Mar.

2,810

2,540

2,280

2,100

1,980

1,920

1,920

1,860

1,800

1,680

1,620

1,560

1,560

1,510

1,510

1,460

1,460

1,510

1,510

1,460

2,110

5,220

3,110

2,470

2,280

2,100

2,040

2,280

2,740

2,670

2,470

Maximum

29,100

17,700

8,810

29,100

6,130

6,360

5,220

7,060

23,000

18,100

6,360

2,540

2,960

29,100

Apr.

2,470

2,400

2,400

2,160

2,040

1,920

1,860

1,740

1,800

1,980

2,040

2,100

2,040

2,100

2,800

6,920

6,590

5,260

4,840

5,050

6,360

7,060

6,820

6,820

6,590

5,160

4,140

3,600

3,190

2,880

-

May

2,740

2,540

3,270

4,740

4,540

7,850

8,290

6,360

5,910

5,160

4,640

4,740

6,130

6,360

5,690

6,360

7,540

7,060

6,360

7,570

11,000

11,000

8,810

10,800

15,000

17,700

21,100

23,000

17,300

12,900

12,300

Minimum

789

2,670

2,100

717

1,620

1,140

1,460

1,740

2,540

6,360

2,160

1,460

1,030

789

June

12,900

13,600

15,000

12,000

11,600

15,000

18,100

18,100

17,300

17,300

15,000

12,000

11,000

9,340

8,550

10,200

10,800

8,550

8,810

8,290

10,500

8,550

7,540

7,300

6,820

6,360

6,820

7,790

8,550

8,040

Mean

5,977

5,626

4,528

4,429

2,745

2,590

2,114

3,771

8,863

11,060

3,594

1,882

1,765

4,542

July

6,360

5,360

5,160

4,940

4,240

4,840

5,050

4,240

3,870

4,240

3,960

3,520

3,350

3,440

3,520

3,690

3,690

3,690

3,190

2,880

2,810

2,810

2,670

2,470

2,280

2,160

2,960

2,880

2,470

2,400

2,280

Per

square 

mile

11.2

10.5

8.46

8.28

5.13

4.84

3.95

7.05

16.6

20.7

6.72

3.52

3.30

8.49

Aug.

2,340

2,2

2,0

2,0

20

40

40

1,920

2,400

2,0

1,8

1,7

40

00

40

1,620

1,560

1,5

1,5

1,6

10

10

20

1,680

1,680

1,5

1,4

1,9

10

60

20

1,800

2,100

1,9

1,6

1,6

20

80

80

1,980

1,920

2,2

2,5

2,1

1,9

20

40

00

20

1,860

Sept.

1,620

1,510

1,980

1,800

1,620

1,460

1,340

1,270

1,250

1,190

1,150

1,100

1,060

1,030

2,340

2,160

1,680

1,460

1,290

1,190

1,560

2,740

2,540

2,160

1,800

1,860

2,810

2,960

2,740

2,280

-

Runoff

Inches

12.88

11.73

9.76

112.37

5.92

5.22

4.56

7.86

19.10

23.06

7.75

4.05

3.68

115.57

Ac re- feet

367,500

334,800

278,400

3,206,000

168,800

149,000

130,000

224,400

545,000

657,900

221,000

115,700

105,000

3,298,000

Peak discharge (base. 19,000 see.-ft.).- Oct. 3 (5:30 a.m.) 19.800 sec.-ft.j Oct. 19 (4:30 a.m.) 

45.3OO sec.-ftTj Nov. 8 (3 a.m.j Zb,4OO Bee.-ft. ; Hay 28 (3 p.m.) 24,400 Bee.-ft.
SNOHOMISH RIVER BASIN 127

Snohomish River at Snohomish, Wash.

Location.- Water-stage recorder, lat. 47°54'32", long. 122°06'00", In SE£ sec. 13, T. 28 

N., R. 5 E., on downstream end of drawrest of bridge No. 205 on State Highway 1A in 

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 1948 (high-water discharges only). The 

Northern Pacific Railroad Co. has record of gage heights at their bridge, a quarter of 

a mile upstream, since 1906. High-water 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, 64,900 second-feet Oct. 19 (gage height, 27.10 

feet,backwater from tide).

1941-48: Maximum discharge, that of Oct. 19, 1947.

Maximum stage known, 35 feet at base gage and 31 feet at auxiliary gage in 1906, 

from flood profile furnished by Corps of Engineers.

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

Large diurnal fluctuation because of tides. Discharge computed by using fall as determined by auxiliary water-stage recorder as factor. No appreciable regulation or diversion at stages for which discharges are published.

Discharge, In second-feet, water year October 1947 to September 1948

Das

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

_

30,000

25,800

15,400

10,100

_

-

-

_

-

_

-

-

16,900

21,800

26,800

48,500

40,800

30,800

20,800

16,800

14,900

12,300

12,000

10,800

_

_

-

-

Nov.

17,000

18,900

17,300

16,000

13,500

14,000

25,000

45,000

42,000

32,000

33,000

27 , 000

23,000

19,000

16,000

15,000

14,000

22,000

20,000

17,600

13,800

11,900

10,700

-

17,700

19,400

17,000

14,000

12,500

-

Dec.

13,000

13,000

13, SOP

11,000 -

_

_

_

_

-

_

-

12,000

14,000

14,000

15,000

21,000

24,000

23,000

19,000

16,000

14,000

14,000

19,000

17,000

14,500

14,500

17,000

16,000

14,500

14,000

Jan.

16,000

21 , 000

18,000

16,000

14,000

12,000

12,000

13,000

12,500

12,000

11,000

10,800

10,500

-

-

_

-

_

-

-

_

_

_

11,200

10,500

_

_

.

_

-

-

Feb.

_

_

-

_

-

_

_

_

_

-

.

_

-

-

-

_

13,300

17,600

15,500

11,100

10,600

16,200

18,800

14,400

12,600

22,300

24,000

19,000

16,000

-

-

Mar.

12,000

_

-

_

-

_

_

_

_

-

_

-

-

-

-

_

_

-

_

-

_

18,000

15,000

11,000

-

_

-

_

_

-

-

Apr.

_

-

-

_

-

_

-

-

_

-

_

-

-

-

-

14,500

18,200

15,100

13,200

12,600

14,500

16,400

17,700

19,000

18,900

17,000

13,900

11,700

10,100

-

-

May

_

_

-

13,500

13,000

19,600

26,100

20,700

17,200

14,900

13,800

12,700

14,900

17,200

15,700

15,600

18,100

19,000

16,500

15,200

21,000

24,200

21,400

20,600

27,400

33,200

36,900

43,400

45,800

37,700

30,500

June

28,900

28 , 400

30,200

27,900

23,800

26,500

31,300

33 , 700

33,700

33,800

30,100

27,500

22,800

20,300

17,400

17,600

23,200

19,200

17,400

16,500

23,100

25,000

20,900

18,200

16,100

14,600

14,100

15,600

16,300

16,100

-

July

13,700

11,300

10,500

10,600

10,000

_

11,200

10,800

-

-

_

-

-

-

-

_

-

-

-

-

_

.

-

_

-

_

-

_

-

-

-

Aug.

t

Sept.

Peak discharge (base, 40,OOP sec.-ft.).- Oct. 19 (3 p.m.) 64,9OO sec--ft.; Nov. 8 (4 p.m.) discharge unknown; May 29 (1 a.m.) 47,700 sec.-ft.

Note.- No gage-height record at auxiliary gage Oct. 3, Nov. 4-19, Nov. 28 to Dec. 4, Dec. 13 to 

JanIz, Feb. 27 to Mar. 1, Mar. 22-24; discharge computed on basis of records for nearby streams.
188 SNOHOMISH RIVER BASIN

Beckler River near Skykoraish, Wash.

Location.- Water-stage recorder, lat. 47°44'20", long. 121°19'10", in SW£ sec. 18, T. 26 

N., R. 12 E., a quarter of a mile downstream from Eagle Creek, 2v miles upstream from 

mouth, and 3 miles northeast of Skykomish.

Drainage area.- 95 square miles.

Records available.- September 1929 to August 1933, July 1946 to September 1948.

Extremes.- Maximum discharge during year, 6,580 second-feet Oct. 19 (gage height, 8.33 

reet); minimum, 70 second-feet Oct. 1 (gage height, 2.62 feet).

1929-33, 1946-48: Maximum discharge, 10,900 second-feet Nov. 13, 1932 (gage height, 

9.6 feet); minimum not determined, probably occurred during period Jan. 9-29, 1930, 

when stage-discharge relation was affected by ice.

Remarks.- Records excellent. No diversion or regulation.

Rating table, water year 1947-48 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1, 2)

2.5 66 3.8 541 5.5 2.0OO 

2.7 98 4.1 736 6.0 2,590 

2.9 146 4.4 965 6.5 3,3OO 

3.2 246 4.7 1,230 7.1 4,310 

3.5 376 5.0 1,500

Discharge, in second-feet, water year October 1947 to September 1940

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

18 

17 

18 

19 

20

21 

22 

23

24 

25

26

27 

28 

29 

30 

31

Oct.

72 

735 

1,380 

709 

506

386 

325 

312 

338 

316

290 

258 

254 

242 

499

801 

1,230 

1,900 

4,080 

1,740

1,230 

941 

823 

702 

636

682 

584 

573 

517 

535 

682

Nov.

377 

750 

709 

648 

597

616 

1,160 

1,940 

1,230 

1,180

1,070 

893 

901 

772 

688

610 

801 

772 

668 

591

535 

482 

444 

417 

592

816 

716 

648 

603 

610

Dec.

622 

591 

566 

517 

476

444 

417 

391 

376 

352

334 

329 

793 

716 

655

668 

1,070 

1,100 

877 

702

610 

553 

642 

816 

779

750 

885 

933 

794 

702 

642

Jan.

668 

682 

597 

547 

488

466 

529 

494 

438 

417

386 

348 

325 

308 

295

282 

274 

266 

254 

242

239 

266 

334 

357 

320

295 

274 

266 

262 

250 

235

Feb.

228 

216 

213 

203 

196

179 

alSO 

185 

192 

176

167 

164 

161 

176 

228

220 

386 

547 

402 

338

343 

529 

438 

376 

391

695 

578 

471 

417

Month SecondMontn foot-days

Octo 

Hove 

Oeoe

Ca

Janvi 

Febi 

Hare 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

mber ...................... i

lendar year 1947

4,283 

3,336 

0,102

......... 251,390

........ . 1

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

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

1,404 

8,998 

B, 729 

7,733 

9,448 

a, 710 

6,849 

6,048 

5,681

ter yearl947-48 .......... 254,321

Mar.

376 

348 

316 

295 

282

27O 

270 

258 

246 

235

224 

216 

216 

213 

216

209 

205 

209 

202 

199

312 

488 

338 

295 

286

270 

290 

343 

391 

362 

348

Maximum

4,080 

1,940 

1,100

4,08O

682 

695 

488 

1,180 

4,310 

3,460 

1,060 

295 

338

4,310

Apr.

357 

357 

357 

316 

295

274 

266 

258 

278 

299

299 

290 

290 

312 

496

990 

901 

786 

801 

862

1,060 

1,180 

1,120 

1,090 

999

823 

695 

616 

560 

506

May

1 

1 

1

1 

1

1 

1 

1 

1 

1

1 

2 

1 

2 

2

3 

4 

4 

3 

2 

2

Minimum

72 

417 

329

70

235 

161 

199 

258 

444 

1,180 

246 

158 

125

72

471 

444 

584 

688 

722

,180 

,180 

,050 

965 

877

823 

839 

,020 

,020 

965

,110 

,280 

,230 

,120 

,410

,890 

,000 

,690 

,060 

,790

,380 

,130 

,310 

,300 

,520 

,400

June

2,460 

2,590 

2,790 

2,280 

2,280

2,860 

3,460 

3,460 

3,460 

3,120

2,790 

2,220 

2,060 

1,790 

1,740

2,060 

1,940 

1,690 

1,640 

1,590

1,640 

1,410 

1,320 

1,280 

1,180

1,180 

1,280 

1,360 

1,460 

1,320

Mean

783 

778 

648

689

368 

310 

282 

591 

1,595 

2,057 

544 

195 

189

695

July

1,060 

917 

885 

808 

716

870 

801 

688 

662 

682

622 

584 

560 

566 

560

547 

517 

488 

438 

412

391 

376 

357 

325 

299

286 

338 

312 

278 

258 

246

Per 

square 

mile

8.24 

8.19 

6.82

7.25

3.87 

3.26 

2.97 

6.22 

16.8 

21.7 

5.73 

2.05 

1.99

7.32

Aug.

270 

235 

220 

228 

231

295 

224 

206 

196 

186

179 

170 

167 

173 

199

179 

161 

158 

199 

173

189 

179 

164 

164 

176

170 

196 

216 

186 

183 

176

Sept.

164 

164 

206 

183 

167

155 

152 

146 

141 

136

133 

128 

125 

125 

282

199 

164 

149 

141 

136

161 

231 

216 

199 

179

238 

325 

538 

320 

278

Runoff

Inches

9.51 

9.14 

7.87

98.43

4.46 

3.52 

3.42 

6.94 

19.36 

24.16 

6.60 

2.37 

2.22

99.57

Ac re- feet

48,160 

46,290 

39,870

498,600

22,620 

17,850 

17,310 

35,170 

98,080 

122,400 

33,420 

12,000 

11,270

504,400

Peak discharge (base, 3,000 sec. -ft.)-- Oct. 19 (2:30 p.m.) 6,580 sec. -ft. ; May 28 (1:30 p.m.)

4,490 sec.-ft.j June 9 (9 p.m.) 4,490 sec.-ft.

a No gage-height record; discharge computed on basis of records for nearby streams.
SNOHOMISH RIVER BASIN 129

North Fork Skykomish River at Index, Wash.

Location.- Wire-weight gage, lat^ 47°49'10", long. 121°33'10", in NW£ sec. 20, T. 27 N., 

K. JLU K. , on highway bridge at Index It miles upstream from mouth.

Drainage area.- 149 square miles.

Records available.- August 1910 to September 1922, February 1929 to September 1938, July 

1946 to septemoer 1948 (discontinued).

Average discharge.- 23 years, 1,210 second-feet.

Extremes.- Maximum discharge observed during year, 7,720 second-feet May 28; maximum gage 

height observed, 6.65 feet Oct. 3; minimum observed, 194 second-feet Oct. 1 (gage 

height, 2.24 feet).

1910-22, 1929-38, 1946-48: Maximum discharge observed, about 21,000 second-feet 

Feb. 26,1932 (gage height, 10.5 feet), but may have reached 26,500 second-feet Dec. 

21, 1933 (from unofficial reports of'comparative stages); minimum observed, 78 secondfeet Sept. 25, 1930.

Remarks.- Records fair. Gage read twice daily. No diversion or regulation. 

Revisions (water years).- W 412: 1912-14. W 692: Drainage area. W 792: 1934.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

250

4,680

5,220

2,760

1,530

1,050

824

763

928

949

602

458

490

557

1,690

3,420

3,160

3,080

6,100

2,840

1,630

1,270

1,470

1,280

1,150

1,370

1,170

1,170

1,060

1,140

1,630

Nov.

2,100

1,580

1,500

1,340

1,220

1,250

2,030

3,690

2,240

2,030

1,820

1,580

1,610

1,400

1,180

1,060

1,250

1,550

1,270

1,100

949

865

783

743

907

1,760

1,350

1,160

1,050

1,010

-

Dec.

1,150

1,010

1,030

928

854

824

743

705

685

647

647

593

1,540

1,370

1,340

1,390

2,540

2,380

1,700

1,240

1,020

938

1,060

1,820

1,500

1,230

1,590

1,760

1,380

1,110

1,040

Jan.

1,130

1,400

1,150

1,020

896

907

1,150

1,020

876

854

753

647

593

566

532

498

498

465

450

465

427

473

647

733

629

566

515

465

458

450

434

Month

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

Ncvsmber ......................

Decsuber ......................

Calendar year 1947 .........

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

Fsbruary ......................

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

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

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

Juns ..........................

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

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

Septsmber .....................

Water year 1947-48 ..........

Feb.

404

375

3.75

362

348

348

334

375

368

327

297

285

285

297

458

434

918

1,400

938

733

714

1,290

1,060

834

834

1,450

1,210

938

773

-

Seccndfoct-days

55,691

43,377

37,764

466,194

21,667

18,764

16,219

33,089

87,001

102,710

34,799

16,461

17,718

485,260

Mar.

695

620

549

515

498

481

465

450

434

404

404

389

382

382

589

362

362

375

362

362

566

1,110

783

620

566

498

498

515

783

724

676

Maximum

6,100

3,690

2,540

6,100

1,400

1,450

1,110

2,100

7,250

5,880

1,960

865

1,250

7,250

Apr.

714

705

629

584

515

515

490

490

515

575

602

593

584

611

949

2,100

1,890

1,530

1,410

1,530

1,890

2,100

1,960

1,960

1,890

1,460

1,230

1,120

1,020

928

-

May

886

865

1,110

1,430

1,410

2,540

2,380

2,030

1,760

1,610

1,500

1,560

2,100

2,030

1,820

2,100

2,540

2,310

2,030

2,460

3,340

3,510

2,680

3,250

4,580

5,440

6,560

7,250

5,880

4,070

3,970

Minimum

250

743

593

201

427

285

362

490

865

2.O30

611

355

267

250

June

4,170

4,270

4.900

3,880

3,880

4,680

5,880

5,660

5,220

4,680

4,370

3,510

3,420

2,920

2,680

3,080

3,080

2,610

2,680

2,760

3,250

2,610

2,310

2,310

2,170

2,030

2,170

2,540

2,610

2,380

-

Mean

1,796

1,446

1,218

1,277

699

647

523

1,103

2,806

3,424

1,123

531

591

1,326

July

1,960

1,590

1,560

1,560

1,320

1,700

1,590

1,350

1,200

1,380

1,290

1,150

1,080

1,100

1,120

1,200

1,170

1,160

980

907

844

865

824

714

629

611

1,020

907

705

647

666

Par

square 

mile

12.1

9.70

8.17

8.57

4.69

4.34

3.51

7.40

18.8

23.0

7.54

3.56

3.97

8.90

Aug.

657

647

575

629

523

611

442

434

427

396

382

368

362

427

458

427

355

355

647

473

733

575

490

507

629

540

783

865

629

575

540

Sept.

450

404

629

557

458

396

366

327

315

291

303

285

267

267

1,250

824

557

442

355

327

685

1,230

1,010

763

611

666

991

1,080

886

724

-

Runoff

Inches

13.90

10.83

9.43

116.37

5.41

4.68

4.05

8.26

21.72

25.64

8.69

4.11

4.42

181.14

Acre-feet

110,500

86,040

74,900

924,900

42,980

37,220

32,170

65,630

172,600

203,700

69,020

32,650

35,140

962,600
130 SNOHOMISH RIVER BASIN

Wallace River at Gold Bar, Wash.

Location.- Water-stage recorder, lat. 47°51'50", long. 121°41'45", in NE| sec. 6. T. 27 N., 

H~!9~~E., at county road crossing, a quarter of a mile north of Sold Bar and If miles 

upstream from Olney Creek.

Drainage area.- 19.8 square miles.

Records available.- December 1928 to September 1933, July 1946 to September 1948.

Extremes.- Maximum discharge during year, 1,380 second-feet Oct. 19 (gage height, 7.83 

feet); minimum discharge, 24 second-feet Oct. 1 (gage height, 3.69 feet).

1928-33, 1946-48: Maximum discharge observed, 2,590 second-feet Feb. 26, 1932 (gage 

height, 8.00 feet, datum then in use); minimum observed, 9.6 second-feet Aug. 27, Sept. 

3-5, 1930 (gage height, 0.32 foot, datum then in use).

Remarks.- Records fair. No known diversion or regulation. 

Revisions.- W 1062: Drainage area.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, in second-feet)

3.7 25 4.5 102 5.6 4O1 

3.9 38 4.7 139 5.9 515 

4.1 54 5.0 216 6.2 635 

4.3 74 5.3 304 6.6 81O

Discharge, in second- feet, water year October 1947 to September 19^48

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.

26 

639 

604 

421 

134

90 

74 

72 

83 

79

72 

62 

76 

70 

283

342

361 

385 

779 

345

268 

208 

268 

202 

172

199 

150 

170 

144 

153 

236

Nov.

283 

228 

245 

185 

165

282 

710 

793 

367 

484

464 

295 

354 

271 

213

175 

358 

354 

242 

191

157 

137 

123 

114 

340

454 

251 

188 

165 

165

Dec.

230 

172 

236 

167 

141

127 

119

110 

109 

100

98 

93 

277

202 

268

275 

660 

475 

320 

222

188 

175 

287 

460 

280

222 

315 

304 

196 

157 

153

Jan.

298 

335 

236 

213 

178

230 

248 

205 

170 

172

157 

137 

125 

116 

109

104 

102 

99 

98 

94

93 

105 

210 

219 

155

129

109 

105 

100 

94 

88

Month fSe<

Octo 

Nove 

Dece

Ca

Janu 

Febi 

Marc 

Apn 

May 

June 

July 

Augu 

Sept

Wa

mber .... ..............

lendar year 1947 

ary . . ...

1 . ................. .....

st .......... ...

ember . .

Feb.

84 

79 

75 

73 

70

66 

64 

70 

72 

68

65 

64 

62 

66 

98

80 

205 

239 

139 

114

134 

378 

196 

150 

222

535 

289 

194 

155

ond-

-days

7,167 

8,753 

7,138

2,173

4,833 

4,106 

2,997 

5,141 

0,387 

8,828 

2,517 

3,287 

3,188

ter year 1947-43 .......... 68,342

Mar.

139 

127 

110 

104 

98

94 

96 

92 

87 

84

82 

79 

78 

75 

77

74 

74 

74 

74 

72

120 

164 

102 

92 

92

86 

B8 

107 

127 

117 

112

Maximum

779 

793 

660

1,180

335 

535 

164 

423 

630 

555 

124 

260 

247

793

Apr

119 

110 

109 

98 

92

38 

87 

83 

87 

96

98 

94 

93 

98 

173

423 

283 

222 

199 

228

265 

295 

301 

348 

283

202 

165 

146 

135 

121

May

116 

110 

176 

210 

209

630 

413 

298 

298

228

188 

202 

268 

298 

230

286 

374 

268 

216 

306

419 

354 

265 

386 

535

555 

575 

615 

535 

412 

412

Minimum

26 

114 

93

16

88 

62 

72 

83 

110 

146 

52 

59 

58

26

June

391 

412 

426 

304 

326

423 

491 

460 

426 

354

338 

257 

257 

194 

178

262 

283 

208 

199 

245

555

370 

260 

210 

178

160 

160 

180 

175 

146

Mean

231 

292 

230

170

156 

142 

96.7 

171 

335 

294 

81.2 

106 

106

187

July

114 

100 

93

114 

119 

100 

92 

90

83 

73 

75 

75 

73

75 

73 

71 

63 

63

61 

60 

59 

53 

52

121 

93 

80 

72 

63

Per 

square 

mile

11.7 

14.7 

11.6

8.59

7.88 

7.17 

4.88 

8.64 

16.9 

14.8 

4.10 

5.35 

5.35

9.44

Peak discharge (base, 1,350 sec. -ft.).- Oct. 19 (2:30 a.m.) 1.38O sec. -ft.

Aug.

65 

63 

61 

65 

65

75 

65 

63 

64 

62

60 

59 

62 

79 

78

78 

67 

64 

130 

121

196

135 

109 

154 

260

172 

230 

218 

137 

123 

107

Sept.

96 

96 

139 

107 

88

80 

77 

72 

68 

66

64 

63 

61 

60 

247

98 

72 

65 

61 

58

105 

242 

144 

105 

84

104 

225 

185 

144 

112

Runoff

Inches

13.46 

16.44 

13.41

116.79

9.08 

7.71 

5.63 

9.66 

19.51 

16.58 

4.73 

6.17 

5.99

Acre-feet

14,220 

17,360 

14,160

123,300

9,590 

8,140 

5,940 

10,200 

20,600 

17,510 

4,990 

6,520 

6,320

135, 5OO
SNOHOMISH RIVER BASIN 131

Olney Creek near Gold Bar, Wash.

Location.- Water-stage recorder, lat. 47°56'40", long. 121°42'30", In SW£ sec. 6, T. 28 

N., R. 9 E., 5j miles north of Gold Bar and 6| miles upstream from mouth.

Drainage area.- 7.9 square miles.

Records available.- July 1946 to September 1948.

Extremes.- Maximum discharge during year, 965 second-feet Oct. 2 (gage height, 4.55 feet), 

from rating curve extended above 310 second-feet; minimum, 10 second-feet Oct. 1 (gage 

height, 1.43 feet).

1946-48: Maximum discharge, 2,550 second-feet Oct. 25, 1946 (gage height, 6.30 

feet), from rating curve extended above 310 second-feet; minimum, 5.6 second-feet 

Aug. 26-29, 1947 (gage height, 1.28 feet).

Remarks.- Records good except those above 320 second-feet, which are fair. No diversion 

or regulation.

Rating table, water year 1947-48 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 3-18)

1.5 

1.7 

1.9 

2.1 

2.3

2.5 

2.7 

3.0 

3.3 

3.7

107

149

224

315

470

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19 

465 

280 

210 

79

55

43 

43 

63 

61

44 

35 

59 

44 

111

193 

170 

195 

350 

121

87 

68 

134 

77 

68

71 

52 

63 

49 

72 

90

Nov.

155 

105 

89 

69 

63

203

417 

311 

138 

256

187 

113 

222 

111 

83

67 

186 

152 

86 

67

57 

48 

43 

38 

201

186

86 

66 

57 

71

Dec.

118 

87 

137 

73 

58

50 

46 

43 

42 

38

44 

47 

189 

100 

226

195 

348 

219 

126 

93

100 

84 

190 

205 

109

87 

144 

126 

79 

62 

160

Jan.

262 

185 

102 

84 

70

148 

151 

a93 

370 

67

58 

48 

44 

42 

38

36 

35 

32 

32 

31

30 

58 

226 

134 

72

55 

46 

40 

36 

32 

29

Feb.

26 

24 

22 

21 

19

18 

17 

21 

19 

17

16 

16 

15 

26 

52

38 

178 

120 

64 

48

128 

327 

114 

77 

199

374 

134 

80 

63

,, iu SecondMonth foot-days

Octc 

Move 

Dece

Ca

Jami 

Febi 

Marc 

Apri 

May 

June 

Julj

Augl;

Sept 

WE

lendar year 1947 

ary ?

 3

ember ..................... 1

,471 

,933 

,625

,986.6

,386 

,273 

,470 

,972 

,484 

,328 

,184 

,097 

,710

ter year 1947-48 .......... 32,933

Peak discharge (base, 7OO sec. -ft.).- Oct

Mar.

57 

49 

43 

40 

39

38 

39 

35 

34 

32

31 

30 

32 

32 

30

29 

28 

28 

28 

28

95 

125 

59 

50 

46

44 

53 

69 

80 

69 

78

Maximum

465 

417 

348

722

262 

374 

125 

290 

340 

278 

114 

247 

152

465

Apr.

94

68 

61 

48 

43

40 

40 

40 

50 

62

65 

57 

57 

59 

108

256 

145 

113 

97 

111

123 

165 

236 

290 

181

102 

75 

68

63 

55

May

52

48 

100 

140 

165

340 

163 

113 

113 

89

76 

89 

136 

192 

125

136 

ISO 

111 

89 

124

156 

129 

100 

141 

180

190 

200 

259 

247 

156 

145

June

134 

145 

142 

100 

113

105 

165 

149 

140 

111

134 

90 

90 

73 

67

151 

129 

89 

76 

138

278 

134 

89 

79

69

65 

68 

72 

73

60

Minimum Mean

19 112 

38 131 

38 117

5.6 82.2

29 77.0 

15 78.4 

28 47 . 4 

40 99.1 

48 145 

60 111 

14 38.2 

21 67.6 

19 57.0

14 90.0

2 (2:30 p.m.) 965 sec. -ft.;

sec. -ft,; Nov. 7 (6 p.m.) 860 sec. -ft. 

a No gage-height record; discharge computed on basis of recorded range 

nearby streams.

July

48 

46 

45 

43 

39

74 

77 

50 

44 

40

34 

34 

31 

31 

30

28 

27 

24 

22 

25

21 

19 

18 

16 

14

24 

114 

64 

42 

32 

26

Per 

square 

mile

14.2 

16.6 

14.8

10.4

9.75 

9.92 

6.00 

12.5

14.1 

4.84 

8.56 

7.22

11.4

Aug.

25

£2 

£3 

44 

43

40 

31 

28 

25 

24

22 

21 

25 

31 

55

44 

31 

30 

143 

82

152 

95 

62 

168 

247

115 

146 

120 

73 

73 

57

Sept.

46 

68 

82 

57 

45

39 

35 

31 

28 

25

23 

21 

20 

19 

109

47 

32 

26 

22 

21

71 

152 

97 

66 

49

81 

133 

126 

77 

62

Runoff

Inches

16.34 

18.51 

17.07

141.16

11.23 

10.70 

6.92 

13.99

15.67 

5.57 

9.87 

8.05

155.03

Acre-feet

6,880 

7,800 

7,190

59,490

4,730 

4,510 

2,920 

5,890 

8,890 

6,600 

2,350 

4,160 

3,390

65,300

Oct. 19 (12:30 a.m. ) 80O 

in stage and records for
132 SNOHOMISH RIVER BASIN

Sultan River near Startup, Wash.

Location.- Water-stage recorder, lat. 47°58'30", long. 121°46'30", in NE£ sec. 28, T. 29 

N., K. 8 E., lj miles upstream from intake of Everett water-supply systeir and 7| miles 

north of Startup.

Drainage area.- 75 square miles.

Records available.- May 1934 to September 1948.

Average discharge.- 14 years, 726 second-feet.

Extremes.- Maximum discharge during year, 10,700 second-feet Oct. 19 (gage height, 13.44 

reet), from rating curve extended above 3,000 second-feet; minimum, 112 second-feet 

Oct. 1 (gage height, 3.86 feet).

1934-48: Maximum discharge recorded, 16,900 second-feet Dec. 3, 1943 (gage height, 

16.4 feet), from rating curve extended above 3,000 second-feet; minimum, 48 secondfeet Sept. 25, 27, 29, 30, 1942; minimum gage height, 3.32 feet Sept. 22, 23, 24, 1938.

Remarks.- Records excellent except those for discharges above 5,000 second-feet, which are 

fair, and those for periods of no gage-height record, which are poor. No diversion or 

regulation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

4.0 137 6.0 800 8 

4.5 248 6.5 1,070 9 

5.0 390 7.0 1,390 10 

5.5 570 7.5 1,760 11

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.

137 

5,050 

4,200 

2,290 

1,090

702 

530 

511 

612 

656

530 

429 

474 

456 

1,740

2,500 

2,400 

2,800 

5,090 

1,560

1,070 

800 

988 

775 

693

908 

612 

679 

570 

634 

1,020

Nov.

1,500 

1,040 

932 

750 

634

1,070 

2,720 

3,380 

1,460 

1,600

1,540 

1,040 

1,320 

960 

750

612

1,140 

1,160 

825 

656

530 

456 

409 

374 

973

1,580 

932 

702 

612 

612

Dec.

878 

702 

1,020 

679 

550

456 

416 

384 

390 

347

356 

341 

2,040 

1,330 

1,390

1,370 

3,560 

2,400 

1,460 

988

850 

825 

1,630 

2,700 

1,420

1,040 

1,450 

1,640 

1,020 

750 

794

Jan.

1,730 

1,840 

1,070 

878 

679

1,220 

1,160 

960 

702 

679

570 

456 

403 

381 

353

332 

321 

315 

309 

301

296 

371 

570 

612 

511

347 

315 

301 

290 

270 

260

Feb.

250 

240 

220 

210 

200

180 

200 

230 

220 

210

200 

195 

190

200 

340

400 

700 

2,500 

910 

570

835 

2,760 

1,330 

932 

1,240

2,710 

1,420 

988 

750

M°nth fooHays

Octo 

Neve 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay 

June 

July 

Augu 

Sept

fla

her .......................

mber ......................

rnber ......................

lendar year 1947 

ary . .

*

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

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

42,506 

32,269 

35,176

30,187

18,802 

21,330 

16,819 

27,123 

50,537 

39,293 

12,944 

14,824 

17,902

ter year 1947-48 .......... 329,525

liar.

679 

591 

511 

474 

442

429 

436 

412 

393 

368

347 

335 

356 

344 

338

323 

321 

341 

329 

318

1,060 

1,730 

775 

570 

511

474 

492 

679 

878 

775 

788

Maximum

5,090 

3,380 

3,560

6.40O

1,840 

2,760 

1,730 

2,410 

2,910 

2,180 

656 

1,040 

1,640

5,090

Apr.

932 

656 

550 

429 

378

362 

368 

347 

409 

530

530 

474 

456 

449 

830

2,410 

1,530 

1,130 

1,020 

1,190

1,460 

1,720 

1,980 

2,030 

1,500

988 

750 

634 

570 

511

0 2,230 

0 3,400 

0 4,800 

0 6,360

1947 to September

May

492 

456 

792 

1,160 

1,130

2,910 

1,910 

1,360 

1,190 

1,020

878 

999 

1,530 

1,720 

1,320

1,560 

1,800 

1,420 

1,160 

1,500

2,080 

1,800 

1,420 

1,820 

2,560

2,730 

2,850 

2,910 

2,450 

1,850 

1,760

Minimum

137 

374 

341

88

260 

180 

318 

347 

456 

702 

243 

213 

199

137

June

1,720 

1,760 

1,940 

1,460 

1,500

1,900 

2,180 

2,080 

1,980 

1,680

1,530 

1,220 

1,160 

988 

878

1,190 

1,280 

988 

960 

1,050

1,940 

1,280 

988 

850 

750

702 

726 

825 

988 

800

Mean

1,371 

1,076 

1,135

905

607 

736 

543 

904 

1,630 

1,310 

418 

478 

597

900

1948

July

634 

511 

492 

511 

436

530 

591 

492 

436 

453

416 

381 

362 

371 

371

377 

377 

377 

353 

338

323 

329 

309 

274 

243

256 

656 

591 

436 

365 

353

Per 

square 

mile

18.3 

14.3 

15.1

12.1

8.09 

9.81 

7.24 

12.1 

21.7 

17.5 

5.57 

6.37 

7.96

12.0

Aug.

335 

312 

293 

368 

356

390 

307 

271 

251 

238

221 

213 

223 

296 

3 ".3

362 

288 

264 

645 

563

960 

775 

§30 

679 

988

726 

860 

1,040 

679 

570 

492

Sept.

409 

436 

679 

550 

436

368 

329 

304 

279 

258

243 

223 

211 

199 

1,510

819 

492 

384 

323 

298

957 

1,640 

1,130 

800 

570

656 

988 

1,020 

800 

591

Runoff

Ino'iea

21.08 

16.00 

17.44

163.72

9.32 

10.58 

8.34 

IS . 45 

25.06 

1?.48 

6.42 

7.35 

8.88

16^.40

Acre-feet

84,310 

64,000 

69,770

654,900

37,290 

42,310 

33,360 

53,800 

100,200 

77,940 

25,670 

29,400 

35,510

653,600

Peak discharge (base. 6,000 see.-ft.).- Oct. 

sec.-ft.; Mov. 8 (12:30 a.m.) 6,04O sec.-ft.

Note.- No gage-height record Jan. 29 to Feb. 

Pork Slcykomish River near Index.

2 (9 a.m.) 8,090 sec.-ft.; Oct. 19 (1:30 a.m.) 10,700 

19; discharge computed on basis of records for South
SNOHOMISH RIVER BASIN 133

McCoy Creek near Sultan, Wash.

Location.- Water-stage recorder, lat. 47°49'50", long. 121°49'40", in NE£ sec. 18, T. 27 

M., K. 8 E., l£ miles upstream from mouth and 2^ miles south of Sultan.

Drainage area.- 6.0 square miles.

Records available.- July 1946 to September 1948.

Extremes.- Maximum discharge during year, 255 second-feet Oct. 19 (gage height, 3.16 

reet); minimum, 3.6 second-feet Oct. 1.

1946-48: Maximum discharge, 386 second-feet Feb. 2, 1947 (gage height, 3.48 feet); 

minimum, 1.5 second-feet Aug. 26, 1946, Aug. 29, 1947 (gage height, 0.65 foot).

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

Known diversion or regulation.

Rating table, water year 1947-48, except periods of shifting control 

(gage height, In feet, and discharge, in second-feet)

0.8 3.2 1.8 50 

1.0 7.3 2.0 69 

1.2 13.5 2.2 91 

1.4 22 2.4 118 

1.6 34 2.7 168

Discharge, in second-feet, water year October 1947 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.

3.6 

4.1 

7.1 

12 

15.5

11.5 

9.5 

8.1 

8.3 

8.1

7.8 

7.3 

8.1 

12 

16.5

49 

64 

67 

166 

101

68 

45 

37 

31 

26

24 

22 

20 

21 

20 

24

Nov.

58 

61 

43 

33 

26

32 

72 

143 

90 

73

126 

92 

89 

107 

76

60 

55 

74 

62 

49

40 

34 

29 

26 

26

37 

34

31 

27 

27

Dec.

33 

37 

49 

48

?,a

33 

31 

27 

33 

38

33 

30 

36 

83 

68

61 

83 

94 

108 

76

62 

53 

57 

96 

76

59 

52 

59 

69 

61 

53

Jan.

91 

121 

96 

85 

63

77 

86 

81 

56 

67

64 

46 

40 

32 

29

26 

23 

21 

19.5 

18.5

17 

18.5 

25 

32 

30

26 

23 

21 

18.5 

19.5 

17.5

Feb.

16.5 

16 

15 

16 

14.5

14 

13 

17.5 

28 

25

20 

18 

16.5 

17 

27

32 

65 

70 

54 

40

36 

45 

73 

54 

48

105 

86 

61 

46

Unv. + u Second 

Month foot-days

Ooto 

Hove 

Decs

Ca

Jam! 

Febi 

Marc 

Apr! 

Hay 

June 

Julj 

Augu 

Sept

Wa

Har>

mber ...................... !

lendar year 1947 

arv

.... - 1O

1

smber .....................

924.5 

,732 

,739

,568

,390 

,089 

816 

874 

987 

543.8 

207.7 

338.2 

360.7

ter year 1947-48 .......... 11,001.9

Mar.

37 

34 

29 

26 

22

20 

19.5 

19.5 

19.5 

18

17 

15 

11 

10.5 

10.5

alO 

11 

10.5 

10.5 

10

19.5 

139 

81 

48 

36

27 

24 

20 

19.5 

19.5 

22

Maximum

166 

143 

108

236

121 

105 

139 

63 

57 

34 

9.8 

26 

33

166

Apr.

18 

17.5 

18 

20 

19

18.5 

22 

22 

22 

27

29 

28 

26 

25 

24

33 

34 

30 

28 

25

26 

27 

34 

46 

63

58 

44 

34 

30 

26

Hay

25 

23 

24 

31 

33

55 

57 

47 

39 

33

29 

26 

29 

34 

35

32 

33 

29 

25 

24

25 

25 

22 

21 

22

23 

23 

36 

48 

44 

35

June

29 

25 

22 

20 

19

18 

16.5 

16.5 

15 

14.5

14.5 

15 

14.5 

14.5 

12

13 

17 

17 

16 

16.5

26 

30 

34 

25 

19

16.5 

14.5 

12.5 

11 

9.8

Minimum Mean

3.6 29.8 

26 57.7 

27 56.1

1.6 29.0

17 44.8 

13 37 . 6 

10 26.3 

17.5 29.1 

21 31.8 

9.8 18.1 

4.2 6.70 

4.2 10.9 

6.6 12.0

3.6 30.1

194^

July

8.9 

7.6 

7.3 

7.3 

7.1

7.8 

9.5 

9.2 

8.3 

7.8

7.3 

7.1 

6.8 

6.6 

6.1

5.9 

5.6 

5.4 

5.2 

5.4

5.2 

4.8 

4.6 

4.4 

4.2

4.2

7.6 

9.8 

7.8 

6.8 

6.1

Per 

square 

mile

4.97 

9.62 

9.35

4.83

7.47 

6.27 

4.38 

4.85 

5.30 

3.02 

1.12 

1.82 

2.00

5.02

Peak discharge (bass, 150 sac. -ft.).- Oct. 19 (6 a.m.) 255 sec. -ft.; Nov. 8 (7

Aug.

5.4 

4.6 

4.2 

5.6 

5.6

5.6 

5.4 

5.2 

4.8 

4.8

4.6 

4.6 

4.8 

5.6 

8.3

9.5 

8.3 

7.3 

12.5 

17

17 

16.5 

15 

14.5 

17

17.5 

19 

26 

24 

20 

18

Sept.

15.5 

14 

14.5 

13.5 

12.5

11.5 

11 

10 

9.5 

8.9

8.3 

7.8 

7.6 

6.8 

7.6

7.8 

7.6 

7.1 

7.1 

6.6

6.6 

8.6 

9.8 

10 

9.5

12 

21 

29 

33 

26

Runoff

Inches

5.73 

10.74 

10.78

65.51

8.62 

6.75 

5.06 

5.42 

6.12 

3.37 

1.29 

2.10 

2.24

68.22

a.m

Aore-fBet

1,830 

3,440 

3,450

20,960

2,760 

2,160 

1,620 

1,730 

1,960 

1,080 

412 

671 

715

21,830

.) 178 sec. -ft.}

a.m.) 191 sec.-ft.

a No gage-height record) discharge computed on basis of records for nearby stream. 

Note.- Shifting-control method used Oct. 1-19, NOV. 15 to Feb. 15.
SNOHOHISH RIVER BASIN

Woods Creek near Monroe, Wash.

Location.- Water-stage recorder, lat. 47°52'20", long. 121°55'10", in W| sec. 33, T. 28 

N., K. 7 E., 200 feet downstream from West Fork Woods Creek and 2j miles northeast of 

Monroe.

Drainage area.- 53 square miles.

Records available.- July 1946 to September 1948.

Extremes.- Maximum discharge during year, 1,590 second-feet Nov. 11 (gage height, 7.01 

feet); minimum, 17.5 second-feet Oct. 1 (gage height, 2.32 feet).

1946-48: Maximum discharge, that of Nov. 11, 1948; minimum, 16 second-feet Aug. 24, 

26-29, 1947.

Remarks.- Records excellent except those for periods of shifting control, which are good, 

and those for period of no gage-height record, which are fair. Several small farm diversions above station. No regulation.

Rating tables, water year 1947-48, except periods of shifting-control 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Nov. 10 Nov. 11 to Sept. 30

2.3 is 3.6 184 2.3 23 3.3 145 5.O 

2.5 32 4.0 274 2.5 39 3.6 202 5.5 

2.7 50 4.5 410 2.7 59 4.O 295 6.0 

3.0 85 5.0 585 3.0 97 4.5 44O 6.5 

3.3 130 5.6 845

Discharge, in second-feet, water year October 1947 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.

18 

22 

52 

39 

35

30 

26 

26 

31 

a34

a33

a32 

a35 

a40 

a 50

a!20 

a!50 

a300 

a710 

aSOO

320 

232 

197 

161 

137

151 

133 

135 

13O 

133 

169

Nov.

366 

492 

380 

294

257

516 

755 

845 

6O5 

509

1,310 

1,090 

740 

600 

456

370 

339 

394 

333 

295

252 

219 

194 

174 

178

264 

241 

215 

192 

206

Dec.

325 

314 

472 

424 

325

267 

262 

238 

274 

259

238 

210 

245 

306 

269

272 

424 

524 

660 

506

394 

330 

328 

456 

379

314 

298 

308 

353 

308 

290

Jan.

409 

542 

561 

542 

489

580 

600 

524 

409 

424

440 

359 

300 

257 

223

200 

178 

163 

149 

136

128 

150 

259 

303 

252

215 

186 

169 

159 

167 

149

Feb.

138 

128 

123 

122 

115

106 

102 

150 

198 

192

167 

154 

147 

154 

219

217 

443 

440 

339 

269

269 

330 

409 

350 

336

660 

620 

440 

339

Month SecondMontft foot-days

Octc 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

1 ......

1 . .......... ...........

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

4,281 

3,081 

L0,572

j9,628.o

9,622 

7,676 

6,234 

6,973 

6,221 

3,484 

1,505 

1,198 

1,475

ter year 1947-48 .......... 72,322

Peak discharge (base, 800 sec. -ft.

Mar

287 

269 

234 

206 

186

169 

167 

169 

152 

138

130 

123 

118 

110 

106

102 

96 

102 

143 

159

238 

580 

472 

339 

290

247

215 

190 

176 

169 

152

Maximum

710 

1,310 

660

1,310

600 

660 

580 

379 

424 

206 

94 

58 

188

1,310

Apr

158 

172 

221 

212 

204

194 

272 

238 

227 

252

308 

317 

272 

232 

206

217 

206 

186 

167 

154

142 

145 

192 

269 

379

379 

327 

274 

241 

210-

May

192 

169 

202 

325 

295

424 

373 

295 

255 

223

198 

186 

202 

215 

198

174 

169 

154 

140 

128

115 

104 

100 

100 

89

82 

80 

191 

298 

311 

234

Minimum

18 

174 

210

16

128 

102 

96 

142 

80 

66 

31 

29 

26

18

.- Oct. 19 (time unknown)

June

180 

150 

135 

122 

108

98 

89 

79 

71 

66

78 

87 

89 

89 

74

97 

176 

142 

115 

138

306 

206 

171 

145 

126

114 

98 

87r 

78 

70

Mean

138 

436 

341

163

310 

265 

201 

233 

201 

116 

48.5 

38.6 

49.2

198

620 

830 

1,060 

1,310

194^

July Aug.

Per 

square 

mile

2.60 

8.23 

6.43

3.08

5.85 

5.00 

3.79 

4.38 

3.79 

2.19 

.915 

.728 

.928

3.74

890 see. -ft.; Nov.

63 

58 

55 

53 

52

71 

94 

87 

66 

59

54 

53 

48 

45 

41

39 

39 

38 

40 

41

39 

37 

35 

34 

33

31 

51 

45 

38 

34 

33

31 

31 

33 

38 

40

37 

34 

31 

30 

29

29 

30 

36 

32 

35

37 

31 

29 

41 

38

38 

41 

36 

45 

58

54 

50 

56 

54 

50 

44

Sept.

40 

37 

43 

41 

37

34 

33 

32 

30 

29

29 

29 

28 

26 

29

33 

30 

28 

37 

26

28 

41 

41 

38 

34

54 

112 

161 

188 

138

Runoff

Inches

3.00 

9.18 

7.42

41 .84

6.75 

5.39 

4.37 

4.89 

4.37 

2.44 

1.06 

.84 

1.04

50.75

Acre feet

8,490 

25,950 

20,970

118,300

19,080 

15,230 

12,360 

13,830 

12,340 

6,910 

2,990 

2,380 

2,930

143,500

8 (10 a.m.) 890

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

nearby streams.

Note.- Shifting-control method used Oct. 1-9, July 9-36.
SNOHOMISH RIVER BASIN 135

Roeslger Creek near Maohlas, Wash.

Location.- Water-stage recorder, lat. 47°57'50", long. 121°55'00", In SW£ sec. 28, T. 29

N., K. 7 E., at downstream end of culvert, half a mile downstream from Roeslger Lake

and 6| miles east of Machlas. 

Drainage area.- 3.8 square miles.

Hecords available.- June 1946 to October 1948 (discontinued). 

Extremes.- Maximum discharge during period October 1947 to October 1948, 157 second-feet

probably Nov. 11 (gage height, 1.97 feet, from recorded range in stage); minimum, 0.49

second-foot Aug. 15 (gage height, 0.68 foot).

1946-48: Maximum discharge, that of Nov. 11, 1947; minimum, 0.02 second-foot Sept.

13, 1946. 

Remarks.- Records fair. Natural regulation by Roeslger Lake. No known diversion.

Rating table, Oct. 1, 1947, to Oct. 14, 1948 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Jan. 17 to Apr. 8)

0.7 

.8

0.55

1.0

2.0

1.0

1.1 

1.3

4.0

8.1

20

1.5 

1.7 

1.9

Discharge, in second-feet, 1947-48 

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.

0.58

.88

1.2

1.3

1.2

1.1

1.1

1.1

1.3

1.4

1.4

1.6

1.6

1.6

3.0

5.0

8.0

20

35

25

20

17

13

11

9.0

10

9.0

8.0

7.7

8.1

9.2

Nov.

15.5

19.5

19

17.5

15

25

45

43

35

70

110

100

72

61

52

40

31

31

27

27

34

34

28

25

25

32

31

29

24

26

-

Dec.

32

30

24

24

25

30

29

26

25

24

23

20

23

25

24

24

22

22

31

27

19.5

19

19.5

20

19

19.5

21

21

21

23

22

Jan.

19

18.5

19.5

24

22

26

25

23

18.5

17.5

17

15.5

15.5

17.5

18.5

15.5

13.5

12

11

10.5

9.2

11

17

19

20

19.5

18.5

17

16.5

15.5

15

Feb.

13.5

13.5

12.5

13.5

12.5

11.5

10.5

14.5

17

18.5

17.5

18.5

17.5

18.5

23

27

31

30

29

29

29

29

29

27

28

35

37

32

28

-

-

Mar.

26

27

28

28

24

21

19.5

18.5

16.5

14.5

13

12

11.5

10.5

9.8

8.7

7.7

9.2

13.5

14.5

17.5

24

25

21

21

19.5

25

21

19

17

15

Apr.

15

15.5

15.5

16.5

16.5

16.5

20

20

19.5

19.5

17.5

17.5

17.5

18.5

18.5

17.5

16.5

15

13.5

12

11

10.5

12.5

16.5

17.5

17.5

17.5

19

20

18.5

-

May

16.5

13.5

15.5

18.5

19

17.5

17.5

17

19

21

18.5

16.5

16.5

17

15.5

14.5

13.5

13

11.5

10.5

9.2

7.7

6.9

6.0

4.8

3.7

3.7

9.2

13.5

14.5

12.5

June

12

11

10.5

9.2

9.2

8.7

6.9

5.6

3.7

3.1

3.3

3.3

3.7

3.7

3.3

4.4

7.7

7.7

7.3

9.2

12

12.5

14.5

14.5

13

12

11

9.2

7.7

6.5

-

July

4.8

3.7

3.1

2.9

2.5

3.7

5.2

5.2

4.4

4.0

3.5

3.5

3.3

2.9

2.3

2.0

1.9

1.5

1.4

1.5

1.4

1.2

1.1

l.-l

.94

.88

1.6

1.5

1.4

1.3

1.2

Aug.

1.1

1.1

1.0

1.2

1.2

1.2

1.1

1.0

.94

.94

.77

.61

.58

.55

.61

.68

.64

.77

1.5

1.4

1.5

1.7

1.7

2.3

3.1

3.1

3.3

4.4

5.6

6.5

6.5

Sept.

6.5

7.3

8.1

7.3

6.0

4.8

3.7

3.5

3.1

2.9

2.5

2.1

1.9

1.5

1.9

1.9

1.7

1.6

1.5

1.4

1.6

2.9

3.1

2.9

2.5

5.2

11

18.5

19.5

19

-

Note.- NO gage-height record Oct. 14-28, Nov. 5-12; discharge computed on basis of recorded range 

in stage and records for nearby streams.

Day

Oct. 1 

2 

3 

4 

5

Discharge

17.5 

16.5 

15.5 

17 

18.5

Day

Oct. 6 

7 

8 

9 

10

Discharge

18.5 

20 

21 

20 

19.5

Day

Oct. 11

12

13 

14

Discharge

19.5 

17.5 

16.5 

15.5

Monthly discharge, in second-feet, 1947-48

Month

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

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

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

Water year 1947-48 ..........

Secondfoot-days

235.36 

1,143.5 

734.5

4,463.00

537.7 

652.5 

558.4 

499.0 

413.7 

246.4 

76.92 

58.59 

157.4

5,313.97

253

Maximum

35 

110 

32

110

26 

37 

28 

20 

21 

14.5 

5.2 

6.5 

19.5

110

21

Minimum

0.58 

15 

19

.09

9.2 

10.5 

7.7 

10.5 

3.7 

3.1 

.88 

.55 

1.4

.55

15.5

Mean

7.59 

38.1 

23.7

12.2

17.3 

22.5 

18.0 

16.6 

13.3 

8.21 

2.48 

1.89 

5.25

14.5

18.1

Per 

square 

mile

2.00 

10.0 

6.24

3.21

4.55 

5.92 

4.74 

4.37 

3.50 

2.16 

.653 

.497 

1.38

3.82

4.76

Runoff

Inches

2.30 

11.19 

7.19

45.68

5.26 

6.39 

5.46 

4.88 

4.05 

2.41 

.75 

.57 

1.54

51.99

2.48

Aore feet

467 

2,270 

1,460

8,860

1,070 

1,290 

1,110 

990 

821 

489 

153 

116 

312

10,550

502

939922 0-51-10
136 SNOHOMISH RIVER BASIN

Snoqualmie River near Tolt, Wash.

Location.- Water-stage recorder, lat. 47°39'55", long. 121°55'30", in sec. 9, T. 25 N., R. 

YE., 100 feet downstream from highway bridge, 1 mile northwest of Tolt, and 2 miles 

downstream from Tolt River. Auxiliary water-stage recorder, lat. 47°39'00", long. 

121°55'25", in SW£ sec. 16, T. 25 N., R. 7 E., at Tolt, three-quarters of a mile downstream from Tolt River and l£ miles upstream from base gage. Datum of each gage is at 

mean sea level, unadjusted.

Drainage area.- 605 square miles.

Records available.- October 1928 to September 1948.

Average discharge.- 20 years, 3,608 second-feet.

Extremes.- Maximum discharge during year, 24,800 second-feet Oct. 19, Nov. 8 (elevation, 

h>4.Y8 feet); minimum, 557 second-feet Oct. 1 (elevation, 44.15 feet); minimum daily, 

1,010 second-feet Oct. 1.

1928-48: Maximum discharge, 51,000 second-feet Feb. 26, 1932; maxim-am elevation 

recorded, 59.9 feet Nov. 13, 1932; minimum discharge, 239 second-feet A'lg. 21, 1945; 

minimum daily discharge, 396 second-feet Sept. 24, 1938.

Remarks.- Records good. Low flow diverted for operation of power plant at Snoqualmie 

Pans but returned to river above station. Some pondage at Snoqualmie Palls and some 

diurnal fluctuation caused by power plant.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, in second-feet)

44.7

45.0

45.5

46.0

46.5

1,000

1,290

1,830

2,470

3,230

47.0

48.0

49.0

50.0

51.0

4,080

6,000

8,230

10,700

13,300

52.0

53.0

54.0

55.0

56.0

16,100

19,000

22,200

25,500

29,100

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,010 

3,160 

12,000 

8,000 

5,390

3,730 

2,910 

2,470 

2,540 

2,840

2,540 

2,260 

2,140 

2,260 

2,830

8,230 

10,700 

11,400 

20,600 

18,000

9,430 

6,640 

5,790 

5,190 

4,350

4,350 

3,900 

3,730 

3,560 

3,560 

4,620

Nov.

7,540 

7,770 

7,310 

6,420 

5,590

6,000 

11 , 500 

22,500 

16,900 

10,700

15,000 

9,680 

8,710 

8,230 

7,080

6,210 

7,400 

12,200 

8,710 

6,860

5,590 

4,810 

4,170 

3,820 

3,900

9,680 

8,000 

6,000 

5,190 

5,000

Dec.

6,420 

5,590 

6,210 

5,390 

4,530

4,080 

3,820 

3,560 

3,560 

3,390

3,310 

3,230 

4,250 

6,640 

6,000

6,640 

9,930 

9,430 

8,230 

6,210

5,190 

5,190 

4,810 

7,540 

6,640

5,590 

5,590 

6,860 

6,420 

5,390 

5,000

Jan.

7,080 

10,200 

8,470 

7,310 

6,210

6,860 

7,770 

7,770 

6,210 

5,790

5,390 

4,720 

4,170 

3,820 

3,480

3,230 

3,070 

2,910 

2,760 

2,680

2,540 

2,610 

3,820 

4,530 

3,820

3,310 

2,760 

2,760 

2,610 

2,540 

2,400

Month fS«

Goto 

Hove 

Dece

Ca

Janu 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

lender year 1947 

ary

Feb.

2,260 

2,200 

2,000 

2,010 

1,830

1,760 

1,730 

1,950 

2,050 

1,960

1,830 

1,740 

1,710 

1,780 

3,280

3,730 

6,000 

6,860 

5,390 

4,080

3,990 

7,210 

6,640 

5,000 

5,390

10,900 

8,950 

6,210 

5,000

ond-

-days

180,130 

248,470 

174,640

1,626,665

1

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

143,600 

115,440 

99,420 

121,120 

224,390 

221,160 

84,930 

62,450 

58 , 000

ter year 1947-48 .......... 1,733,750

Mar.

4,350 

4,080 

3,640 

3,310 

3,070

2,990 

3,070 

2,990 

2,840 

2,610

2,470 

2,400 

2,330 

2,260 

2,140

2,200 

2,070 

2,140 

2,140 

2,140

2,770 

8,000 

5,390 

4,170 

3,730

3,310 

3,070 

3,230 

3,640 

3,640 

3,230

Maximum

20.60C 

22,50C 

9,93C

28.20C

10,20C 

10,90C 

8,000 

6,64C 

16,400 

10,400 

4,44C 

3,730 

4,530

22,500

Apr.

3,150 

3,150 

3,070 

2,840 

2,680

2,540 

2,470 

2,330 

2,330 

2,610

2,610 

2,680 

2,610 

2,540 

2,840

6,420 

6,640 

5,390 

4,810 

4,720

5,790 

6,210 

6,640 

6,000 

6,640

5,590 

4,620 

4,080 

3,730 

3,390

May

3,230 

2,990 

3,560 

5,590 

5,000

8,230 

9,680 

6,860 

6,000 

5,390

4,620 

4,530 

5,590 

5,790 

5,390

5,590 

6,640 

6,210 

5,390 

5,590

8,000 

8,230 

6,640 

6,860 

9,680

10,700 

12,000 

14 , 400 

16,400 

10,900 

8,710

Minimum

1,010 

3,820 

3,230

640

2,400 

1,710 

2,070 

2,330 

2,990 

4,810 

1,610 

1,340 

1,130

1,010

June

8,710 

8,710 

9,680 

8,000 

7,310

8,470 

9,930 

10,200 

9,930 

10,200

8,710 

8,230 

6,860 

6,210 

5,390

5,590 

7,540 

5,790 

5,590 

5,590

10,400 

9,430 

7,310 

6,210 

5,590

5,000 

4,810 

5,190 

5,390 

5,190

Mean

5,811 

8,282 

5,634

4,457

4,632 

3,981 

3,207 

4,037 

7,238 

7,372 

2,740 

2,015 

1,933

4,737

July

4,440 

3,730 

3,480 

3,390 

3,070

3,390 

3,990 

3,730 

3,070 

3,070

2,990 

2,680 

2,540 

2,470 

2,470

2,470 

2,470 

2,540 

2,400 

2,260

2,200 

2,070 

2,010 

1,950 

1,780

1,610 

2,540 

3,310 

2,540 

2,200 

2,070

Per 

square 

mile

9.60 

13.7 

9.31

7.37

7.66 

6.58 

5.30 

6.67 

12.0 

12.2 

4.53 

3.33 

3.20

7.83

Peak discharge (base, 16,000 sec. -ft.).- Oct. 19 (10:30 p.m.) 24,800 aec.-ft.;

Aug.

1,950 

1,870 

1,690 

1,710 

1,640

1,850 

1,980 

1,720 

1,570 

1,520

1,340 

1,360 

1,360 

1,480 

1,720

1,720 

1,610 

1,370 

1,800 

2,070

2,200 

2,140 

1,890 

1,950 

3,150

2,990 

3,070 

3,730 

2,990 

2,540 

2,470

Sept.

2,200 

1,950 

2,070 

2,260 

2,070

1,760 

1,640 

1,500 

1,410 

1,360

1,280 

1,250 

1,200 

1,150 

1,400

1,960 

1,430 

1,320 

1,220 

1,130

1,150 

1,910 

2,660 

2,280 

1,920

1,850 

3,820 

4,530 

3,560 

2,760

Runoff

Iiches

11.07 

15.27 

10.74

100.00

8.83 

7.10 

6.11 

7.45 

13.79 

13.59 

5.22 

3.84 

3.57

106.58

Acre-feet

357,300 

492,800 

346,400

3,227,000

284,800 

229,000 

197,200 

240,200 

445,100 

438,700 

168,500 

123,900 

115,000

3,439,000

Nov. 8 (7 p.m. )

24,800 sec. -ft.; May 29 (4 a.m.) 18,200 sec. -ft.
SNOHOMISH RIVER BASIN 137

North Pork Snoqualmie River near Snoqualmie Palls, Wash.

Location.- Water-stage recorder, lat. 47°37 I 10", long. 121° 42'35", in SW£ sec. 30, T. 25 

N., K. 9 E., 1 mile upstream from Calligan Creek, 8 miles northeast of Snoqualmie 

Palls, 9 miles northeast of Snoqualmie, and 9? miles upstream from mouth.

Drainage area.- 65 square miles.

Records available.- August 1929-to September 1948.

Average discharge.- 19 years, 489 second-feet.

Extremes.- Maximum discharge during year, 5,470 second-feet about Oct. 19 (gage height, 

iy .9 1'eet, from high-water mark in well), from rating curve extended above 2,200 

second-feet; .minimum, 87 second-feet about Oct. 1 (gage height, 2.73 feet, from recorded range in stage).

1929-48: Maximum discharge, 8,320 second-feet Jan. 7, 1945 (gage height, 16.3 

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

second-feet; minimum, 30 second-feet Sept. 17-19, 1929.

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

control, which are fair. No diversion or regulation.

Rating tables, water year 1947-48, except period of shifting control 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to May 28 May 28 to Sept. 3O

2.8 93 4.0 281 7.0 1,500 3.0 120 4.5 460 

3.1 126 4.5 422 8.0 2,100 3.2 145 5.0 645 

3.4 166 5.0 595 9.0 2,700 3.4 174 6.0 1,100 

3.7 215 6.0 1,000 10.3 3,560 3.7 231 7.0 1,610 

4.0 310 8.0 2,160

Discharge, in second-f eet , water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

90 

750 

1,400 

1,000 

450

300 

220 

190 

210 

230

200 

170 

2OO 

230 

.500

1,200 

1,600 

1,500 

3,500 

1,400

750 

550 

600 

500 

450

460 

400 

430 

400 

480 

650

Nov.

90O 

770 

810 

670 

542

759 

2,390 

3,200 

1,300 

1,900

2,100 

1,200 

1,700 

1,300 

1,000

800 

1.7OO 

1,600 

1,150 

800

620 

500 

410 

350 

900

1,500 

800 

550 

450 

500

Dec.

800 

600 

820 

580 

470

400 

350 

320 

340 

300

290 

280 

1,000 

90O 

1,200

1,000 

2,000 

1,500 

900 

63O

525 

525 

723 

1,300 

870

690 

810 

1,000 

650 

490 

508

Jan.

1,120 

1,360 

770 

630 

508

770 

978 

750 

542 

490

412 

346 

309 

298

276

257 

246 

239 

231 

223

217 

253 

525 

578 

400

319 

281 

257 

242 

229 

211

Feb.

199 

186 

181 

175 

153

146 

152 

159 

148 

136

130 

127 

126 

262 

335

276 

630 

890 

490 

338

369 

1,150 

630 

438 

688

1,740 

945 

595 

455

 ..,. Second- 

"onth foot-days

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

her .......................

Bber ......................

lendar year 1947 

ary

21,030 

33,171 

22,771

......... 211,154

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

st ........................

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

14,267 

12,249 

9,080 

15,160 

34,900 

33,580 

10,753 

9,018 

9,109

ter year 1947-48 .......... 225,088

Mar.

396 

352 

301 

276 

262

262 

262 

246 

231 

213

202 

195 

201 

192 

189

184 

180 

184 

183 

178

383 

910 

438 

332 

298

267 

262 

335 

438 

390 

338

Maximum

3,500 

3,200 

2,000

4,470

1,360 

1,740 

910 

1,450 

2,560 

1,780 

605 

685 

978

3,500

Apr.

322 

316 

309 

271 

248

233 

224 

208 

221 

255

267 

262 

248 

253 

463

1.45O 

1,020 

730 

630 

710

910 

955 

955 

790 

810

560 

455 

396 

363 

327

May

314 

296 

582 

790 

690

1,980 

1,350 

910 

810 

670

578 

630 

890 

890 

750

910 

1,100 

890 

750 

1,000

1,450 

1,250 

910 

1,35O 

1,800

1,920 

1,980 

2,560 

2,000 

1,450 

1,450

Minimum

90 

350 

280

59

211 

126

208 

296 

605 

179 

136 

130

90

June

1,450 

1,500 

1,610 

1,150 

1,180

1,560 

1,780 

1,720 

1,660 

1,500

1,400 

1,100 

1,100 

842 

775

1,000 

1,050 

775 

798 

1,000

1,500 

1,250 

932 

775 

665

605 

645 

775 

798 

685

Mean

678 

1,106 

735

579

460 

422 

293 

505 

1,126 

1,119 

347 

291 

304

615

Peak discharge (base, 4,000 sec. -ft.).- About Oct. 19 (time unknown) 5

July

548 

430 

430 

430 

355

530 

548 

445 

385 

415

370 

307 

295 

310 

313

322 

319 

307 

267 

259

238 

231 

218 

197 

179

179 

605 

478 

337 

270 

236

Per 

square 

mile

10.4 

17.0 

11.3

8.91

7.08 

6.49 

4.51 

7.77 

17.3 

17.2 

5.34 

4.48 

4.68

9.46

470 sec

Aug.

214 

195 

181 

176 

171

277 

212 

181 

165 

153

144 

136 

138 

231 

220

229 

181 

164 

325 

283

430 

355 

277 

385 

605

460 

645 

685 

430 

385 

385

Sept.

304 

277 

355 

319 

254

220 

200 

186 

171 

160

152 

142 

136 

130 

326

286 

216 

176 

155 

141

181 

530 

530 

400 

289

337 

978 

708 

495 

355

Runoff

Inches

12.03 

18.98 

13.03

120.81

8.16 

7.01 

5.20 

8.67 

19.97 

19.21 

6.15 

5.16 

5-21

128,78

Acre-feet

41,710 

65,790 

45,170

418,800

28,300 

24,300 

18,010 

30,070 

69,220 

66,600 

21,330 

17,890 

18,070

446.500

-ft.; Mov. 8

Note.- No gage-height record Oct. 1 to Nov. 2, Nov. 10 to Dec. 19; discharge computed on basis of 

recorded range In stage, high-water mark In well, 1 discharge measurement, and records for Tolt 

River near Tolt. Shifting-control method used Feb. 26 to Apr. 21.
SNOHOMISH RIVER BASIN

South Pork Snoqualmie River at North Bend, Wash.

Location.- Water-stage recorder, lat. 47°29 I 40", long. 121°47'20", in NE£ 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 September 1948. July 1907 to September 1926, February 

1929 to September 1938 at sites 1 mile upstream.

Average discharge.- 31 years, 547 second-feet.

Extremes.- Maximum discharge during year, 4,320 second-feet Oct. 19 (gage height, 8.13 

feet); minimum, 137 second-feet Sept. 21 (gage height, 2.09 feet).

1907-26, 1929-38, 1945-48: 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 except those for period of shifting control, which are fair, 

small diversions for irrigation and domestic use. No regulation.

Rating table, water year 1947-48, except period of shifting control 

(gage height, in feet, and discharge, In second-feet)

Some

2.0 101 3.1 620 5.0 1,740 

2.2 183 3.5 840 6.0 2,440 

2.5 315- 4.0 1,130 7.0 3,250 

2.8 460 4.5 1,430

Discharge, in second-feet, water year October 1947 to September 1943

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 29' 

30 

31

Oct.

149 

622 

1,830 

896 

609

455 

372 

329 

338 

338

306 

274 

270 

257 

397

980 

1,520 

1,550 

3,110 

1,560

1,160 

840 

758 

642 

544

565 

496 

476 

410 

455 

620

Nov.

1,010 

868 

840 

758 

653

758 

1,790 

2,730 

1,430 

1,580

1,700 

1,190 

1,190 

1,040 

922

812 

1,090 

1,550 

1,130 

895

758 

702 

636 

582 

648

1,400 

1,130 

895 

785 

758

Dec.

868 

812 

812 

730 

658

609 

598 

560 

544 

512

496 

486 

675 

812 

785

840 

1,190 

1,250 

1,100

868

785 

730 

702 

812 

812

730 

758 

840 

812 

730 

702

Jan.

868 

1,190 

1,010 

950 

812

895 

1,070 

1,010 

840

812

730 

664 

614 

582 

549

523 

502 

481 

460 

445

4?0 

445 

507 

570 

533

486 

450 

425 

410 

405 

386

Feb.

372 

357 

357 

343 

329

310 

306 

320 

329 

306

292 

288 

284 

320 

470

486 

626 

785 

636 

523

560 

1,070 

895 

702 

785

1,490 

1,130 

868 

758

Month SecondMontn foot-days

Ootc 

Move 

Dace

Ca

Janu 

Febi 

Hare 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

mber ......................

lender year 1947 

ary

23,128 

32,230 

23,618

......... 231,943

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

20,054 

16,297 

14,599 

17,301 

34,939 

37,501 

13,157 

7,278 

6,032

ter year 1947-48 .......... 246,134

Mar.

658 

604 

538 

502 

465

481 

486 

455 

440 

415

396 

381 

376 

367 

353

348 

338 

357 

338 

338

514 

1,010 

642 

523 

496

445 

430 

460 

517 

481 

445

Maximum

3,110 

2,730 

1,250

3,340

1,190 

1,490 

1,010 

1,010 

2,590 

1,980 

730 

310 

400

3,110

Apr.

435 

430 

420 

386 

367

353 

338 

324 

334 

353

372 

348 

338 

338 

430

922 

922 

758 

675 

730

895 

950 

950 

922 

1,010

785 

658 

576 

517 

465

May

440 

415 

598 

812 

730

1,340 

1,360 

1,010 

840 

730

658 

675 

812 

812 

730

840 

950 

895 

812 

950

1,370 

1,430 

1,130 

1,250 

1,780

1,950 

2,160 

2,590 

1,950 

1,460 

1,460

June

1,490 

1,520 

1,670 

1,400 

1,310

1,580 

1,780 

1,740 

1,670 

1,880

1,520 

1,250 

1,130 

980 

895

1,010 

1,130 

895 

895 

1,090

1,980 

1,400 

1,100 

980 

922

868 

840 

868 

868 

840

Minimum Mean

149 746 

582 1,074 

486 762

121 635

386 647 

284 562 

338 471 

324 577 

415 1,127 

840 1,250 

270 424 

196 235 

141 201

141 672

July

730 

631 

598 

576 

528

592 

626 

549 

491 

491

470 

435 

410 

410 

405

396 

381 

381 

362 

343

334 

320 

310 

292 

284

274 

334 

348 

302 

284 

270

Per 

square 

mile

8.99 

12.9 

9.18

7.65

7.80 

6.77 

5.67 

6.95 

13.6 

15.1 

5.11 

2.83 

2.42

8.10

Peak discharge (base, 2,200 sec. -ft.).- Oct. 3 (4:30 a.m.) 2,300 sec. -ft.; Oct.

Aug.

261 

257 

248 

244 

239

270 

252 

235 

230 

230

222 

213 

217 

222 

226

222 

209 

209 

217 

213

209 

204 

196 

213 

244

239 

252 

310 

279 

257 

239

Sept.

226 

217 

230 

226 

213

200 

192 

187 

175 

166

162 

158 

154 

149 

162

175 

158 

149 

145 

141

145 

175 

204 

187

175

196 

362 

400 

329 

274

Runoff

In-shes

10.36 

14.44, 

10.58

103.93

8.99 

7.30 

6.54 

7.75 

15.66 

16.80 

5.90 

3.26 

2.70

110.28

Acre-feet

45,870 

63,930 

46,850

460,100

39,780 

32,320 

28,960 

34,320 

69,300 

74,380 

26,100 

14,440 

11,960

488,200

19 (8:30 a.m.)

4,320 sec.-ft.; Nov. 8 (3 a.m.) 3,520 sec.-ft.; Nov. 10 (9 p.m.) 2,230 

3,070 sec.-ft.; June 10 (l:3O a.m.) 2,300 sec.-ft.; June 21 (6 a.m.) 2,300 sec.-ft. 

Note.- Shifting-control method used Dec. 18 to Mar. 22.
SNOHOMISH RIVER BASIN 139

Raging River near Pall City, Wash.

Location.- Water-stage recorder, lat. 47°32'25", long. 121°54'10", on west line sec. 27, 

T. 24 N. , R. 7 E., 2 miles southwest of Fall City and 2| miles upstream from mouth.

Drainage area.- 31.2 square rrdles.

Records available,- July 1945 to September 1948.

Extremes.- Maximum discharge during year, 1,850 second-feet Oct. 19 (gage height, 5.20 

reet J, from rating curve extended above 1,200 second-feet; minimum, 17 second-feet 

Oct. 1 (gage height, 1.32 feet).

1945-48: Maximum discharge, that of Oct. 19, 1947; minimum, 10 seconi-feet Aug. 

26, 1947 (gage height, 1.09 feet).

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

Some small diversion for irrigation and domestic use. No regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

17.5 

76 

312 

209 

144

110 

81 

68 

91 

110

82 

68 

93 

99 

294

594 

861 

673 

1,200 

650

470 

303 

277 

206 

167

152 

130 

165 

139 

179 

227

Nov.

450 

342 

381 

334 

331

508 

734 

861 

530 

632

470 

317 

328 

297 

317

265 

342 

638 

385 

280

214 

179 

150 

132 

154

233 

186 

154 

134

146

Dec.

268 

219 

290

£14 

179

152 

158 

144 

165 

146

156 

143 

183 

183 

225

271 

430 

450 

465 

300

271 

303 

274 

328 

253

206 

211 

324 

353 

274 

387

Jan.

770 

875 

698 

686 

435

584 

620 

552 

381 

491

394 

294 

233 

196 

167

148 

134

122 

114 

105

98 

120 

219 

198 

163

137 

124 

112 

108 

110 

100

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

1 .........................

embe r .....................

ter year 1947-48 ..........

Feb.

96 

89 

86 

86 

80

75 

73 

111 

128 

112

98 

93 

89 

124 

324

440 

674 

546 

317 

239

416 

632 

465 

342 

574

1,070 

530 

331 

247

Secondfoot-days

8,247.5 

10,424 

7,925

56,407

9,488 

8,487 

5,560 

4,934 

5,151 

3,503 

1,458 

1,318 

1,827

68,322.5

Mar.

216 

196 

167 

148 

135

144 

156 

148 

137 

122

116 

106 

110 

105 

98

96 

91 

110 

104 

105

416 

717 

334 

241 

239

198 

183 

179 

163 

146 

134

Maximum

1,200 

861 

465

1,200

875 

1,070 

717 

328 

349 

617 

99 

95 

233

1,200

Apr.

130 

150 

146 

130 

125

127 

128 

116 

132 

176

188 

154

135 

125 

139

214 

1&S 

158 

141 

130

125 

137 

233 

244 

328

259 

209 

179 

158 

135

May

128 

114 

186 

183 

188

349 

277 

222 

179

165

146 

141 

143 

144 

135

124 

158 

141 

128 

120

110 

100 

95 

88 

84

80 

102 

331 

342 

262 

186

Minimum

17.5 

132 

143

10.5

98 

73 

91 

116 

80 

51 

26 

24 

23

17.5

June

146 

124

110 

95

86

75 

66 

59 

54 

51

75 

65 

68 

61 

53

75 

104 

77 

65 

186

617 

290 

198 

154 

130

111 

93 

80 

71 

64

Mean

266 

347 

256

155

306 

293 

179 

164 

166 

117 

47.0 

42.5 

60.9

187

July

59 

53 

49 

50 

48

70 

99 

88 

66 

59

53 

49 

44 

40 

37

34 

34 

31 

40 

43

40 

35 

31 

29 

27

26 

64 

53 

42 

34 

31

Per 

square 

mile

8.53 

11.1 

8.21

4.97

9.81 

9.39 

5.74 

5.26 

5.32 

3.75 

1.51 

1.36 

1.95

5.99

Aug.

28 

27 

28 

29 

29

43 

33 

29 

28 

26

25 

24 

26 

34 

35

35 

29 

30 

39 

31

30 

31 

28 

72 

95

65 

95 

92 

70 

70 

62

Sept.

51 

49 

76 

61 

51

45 

41 

37 

34 

32

28 

27 

26 

24 

42

36 

28 

26 

25 

23

24 

23 

26 

64 

51

114 

233 

230 

176 

124

Runoff

Imhes

9.83 

12.43 

9.45

67.26

11.31 

10.12 

6.63 

5.88 

6.14 

4.18 

1.74 

1.57 

£.18

81.46

Acre-feet

16,360 

20,680 

15,720

111,900

18,820 

16,830 

11,030 

9,790 

10,220 

6,950 

2,890 

2,610 

3,620

135,500

Peak discharge (base, 1,000 sec.-ft.).- Oct. 19 (4 a.m.) 1,850 sec.-ft.; Nov. 8 (7:30 a.m.) 1,230

sec.-ft.; Jan. 2 (6 a.m.} 1,060 sec.-ft.; Feb. 26 

sec.-ft.

Note.- Shifting-control method used Oct. 19 to Nov. 7, Dec. 31 

27 to Aug. 24, Sept. 27-30.

1,460 sec.-ft.; Mar. 21 (12 p.m.) 1,280

to Feb. 26, Mar. 22 to July 7, July
140 SNOHOMISH RIVER BASIN

Patterson Creek near Fall City, Wash.

Location.- Water-stage recorder, lat. 47°-35''00", long. 121°56'25", In NW^ sec. 8, T. 24 

N., K. 7 E., 2 miles upstream from mouth and 2f miles northwest of Pall City.

Drainage area.- 16.5 square miles; 19.6 square miles at former location.

Records available.- February 1947 to September 1948. June to October 1945 to site l£ 

miles downstream.

Extremes.- Maximum discharge during year, 330 second-feet Oct. 19 (gage haight, 4.04 feet), 

from rating curve extended above 95 second-feet; minimum, 9.0 second-feet Oct. 1.

1945, 1947-48: Maximum discharge, that of Oct. 19, 1947; minimum, 7.1 second-feet 

Aug. 23, 24, 27, 1947.

Remarks.- Records good except those for periods of shifting control and above 100 secondieet, which are fair. Some small diversion on Patterson Creek and tributary for 

irrigation and domestic use. No regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

12

18 

15 

14

13 

12 

12 

14 

14

14 

13 

16 

16 

39

49

78 

86 

233

107

70 

46 

39 

31 

27

24 

21 

26 

21 

27 

39

Nov.

105 

137 

131 

90 

65

58 

67 

94 

71 

74

79 

62 

65 

89 

155

77 

112 

183 

111 

75

57 

44 

37 

32 

36

42 

35 

31 

28 

42

Dec.

70 

59 

64 

51 

44

38 

43 

38 

39 

39

39 

35 

45 

46 

40

46 

66 

67 

70 

55

49 

45

40 

73 

64

53 

59 

80 

97 

85 

76

Jan.

122 

162 

157 

157 

127

127 

127 

122 

94 

118

112

85 

69 

58 

50

46 

41 

38 

35 

33

31

37 

41 

44 

39

35 

32 

31 

31 

32 

29

Feb.

31 

29 

31 

36 

31

27 

29 

56 

68 

53

46 

41

39 

51 

78

104 

152 

118 

84 

72

73 

71 

76 

66 

91

157 

122 

86 

68

Month Secondfoot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 

ary . ...

1,156 

2,284 

1,715

.........

1 .......................

st ........................

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

2,262 

1,986 

1,578 

1,202 

1,358 

887 

448 

413 

494

ter year 1947-48 .......... 15,783

Mar.

62 

58 

50 

44 

40

46 

45 

42 

39 

35

35 

32 

21 

29 

28

27 

26 

29 

28 

32

111 

187 

104 

76 

72

58 

50 

44 

41 

41 

36

Maximum

233

183 

97

-

162 

157 

187 

64 

101 

83 

24 

17 

45

233

Apr.

34 

42 

40 

38 

40

39 

36 

32 

39 

50

42 

39 

36 

32 

32

45 

38 

36 

31 

29

28 

37 

40 

43 

52

64 

56 

50 

44 

38

Hay

42 

34 

50 

44 

46

74 

64 

55 

48 

47

41 

44 

46 

39 

35

33 

32 

29 

27 

26

24 

23 

23 

23

21

20 

30 

95 

101 

84 

58

Minimum

10 

28 

35

-

29 

27 

26 

28 

20 

16 

11 

12 

12

10

June

44 

35 

30 

26 

24

22 

20 

19 

18 

17

27 

23 

24 

21 

20

34 

37 

27 

23 

42

83 

59 

44 

35

31

26 

22 

20 

18 

16

P

Mean sqv

mi

July

16 

15 

15 

15 

15

20 

24

18 

16 

15

14 

14 

13 

13 

12

12 

12 

12 

14 

14

13 

12 

12 

12 

11

12 

22 

16 

14 

13 

12

Aug.

12 

12 

12 

13 

13

17 

14 

13 

12 

12

12 

12 

12

13 

13

13 

12 

12

15 

13

13 

13 

12

16 

15

13

16 

17 

14 

14 

13

Sept.

12 

13 

14 

14 

13

12 

12 

12 

12 

12

12 

12 

12

12 

14

13 

12 

12 

12 

12

13

15 

15 

15 

14

37 

39 

45 

30 

22

er Runoff

lg° Inches Acre-feet

37.3 2.26 2.61 2,290 

76.1 4.61 5.15 4,530 

55.3 3.35 3.87 3,400

-

73.0 4.42 5.10 4,490 

68.5 4.15 4.48 3,940 

50.9 3.08 3.56 3,130 

40.1 2.43 2.71 2,380 

43.8 2.65 3.06 2,690 

29.6 1.79 2.00 1,760 

14.5 .879 1.01 889 

13.3 .806 .93 819 

16.5 1.00 1.11 980

43.1 2.61 35.59 31,300

Peak discharge (base. 2OO sec. -ft.).- Oct. 19 (3 a.m.) 330 sec. -ft.: Nov. 17 (11:30 p.m.) 213 sec.-

Note.- Shifting-control method used Oct. 1 to Feb. 25, May 1 to June 21.
SNOHOMISH RIVER BASIN 141

Griffin Creek near Tolt, Wash.

Location.- Water-stage recorder, lat. 47°37'00", long. 121°54'30", In SEij sei. 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 1948.

Extremes.- Maximum discharge during year, 522 second-feet Oct. 19 (gage height, 4.01 

feet); minimum, 7.0 second-feet Oct. 1, 2.

1945-48: Maximum discharge, that of Oct. 19, 1947; minimum, 2.6 second-feet Aug. 

22, 23, 1945 (gage height, 0.75 foot).

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

those for July 29 to Aug. 13, which are poor. Some small diversions for irrigation 

and domestic use. No regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

7.0 

7.9 

14 

12 

11

10 

9.9 

9.9 

11 

12

12 

13 

14 

15 

24

60 

126 

160 

420 

284

195 

126 

99 

78 

62

51 

44 

44 

38 

39 

50

Nov.

103 

184 

179 

145

115

115 

163 

206 

177 

160

177 

148 

130 

157 

175

152 

152 

190 

153 

121

94 

75 

59 

49 

49

56 

55

51 

47 

50

Dec.

74 

80 

96 

92 

81

68 

68 

61 

64 

66

66 

59 

68 

84 

80

80 

95 

107 

120 

108

95 

86 

82 

95 

94

85 

84 

98 

138 

148 

133

Jan.

172 

246 

284 

295 

Z 4O

222 

228 

217 

181 

191

186 

158 

129 

104 

86

71 

60 

51 

46 

39

36 

39 

47 

54

50

48 

44 

39 

38 

41 

38

Month

Ooto 

Neve 

Deoe

Ca

Jam: 

Febr 

Hare 

Apr! 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

aTy .

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

ter year 1947-48 ..........

Feb.

36 

34 

31 

32 

29

26 

26 

35 

48 

48

45

40 

39 

47 

100

148 

242 

226 

172 

133

118 

112 

137 

133 

145

284 

230 

158 

109

Seoondfoot days

2,058.7 

3,687 

2,755

19,003.2

3,68O 

2,963 

1,725 

1,454 

1,826 

1,176 

555 

451.9 

510.5

22,842.1

Peak discharge (base, 220 sec. -ft.).- Oct

Mar.

84 

75 

62 

50 

41

40 

42 

44 

38 

33

32 

28 

25 

23 

21

18 

33 

36 

35 

37

60 

152 

143 

109 

99

84 

70 

60 

54 

51 

46

Maximum

420 

206 

148

420

295 

284 

152 

89 

115 

106 

26 

21 

50

420

Apr.

40 

46 

46 

44

44

42 

40 

36 

34 

47

47 

47 

46 

41 

39

53

51 

46 

41 

36

34 

34 

34 

37 

54

76 

89 

84 

78 

68

Hay

68 

57 

65 

67 

68

100 

115 

102 

85 

75

62 

57 

59 

51 

47

42 

48 

46 

41 

39

34 

32 

30 

28 

26

25 

25 

54 

94

103 

81

Minimum

7.0 

47 

59

3.4

36 

26 

18 

34 

25 

19 

14 

9.9 

9.9

7.0

June

64 

49 

41 

35 

28

26 

23 

21 

2O 

19

23 

21 

25 

22

20

24 

33 

29 

26 

34

80 

106 

99 

74 

59

48 

40 

34 

28 

25

Mean

66.4 

123 

88.9

52.1

119 

102 

55.6 

48.5 

58.9 

39.2 

17.9 

14.6 

17.0

62.4

July

22 

21 

19 

20 

19

22 

26 

23 

20 

20

20 

19 

18 

18 

16

15 

14 

14 

16 

17

15 

14 

14 

14 

14

14 

23

20 

17 

16 

15

Per 

square 

mile

3.95 

7.32 

5.29

3.10

7.08 

6.07 

3.31 

2.89 

3.51 

2.33 

1.07 

.869 

1.01

3.71

Aug.

14 

12 

14 

13

13

14 

14 

12 

11 

10

9.9

10 

12 

14 

14

14 

13 

12 

16 

16

15 

15 

15 

17 

19

17 

18 

21 

20 

19 

18

Sept.

18 

16 

17 

16 

12

12 

12 

12 

11 

9.9

9.9 

9.9 

9.9 

9.9

10

13 

11 

14 

14 

14

14 

16 

16 

16 

15

20 

29 

39 

SO 

44

Runoff

Inches Acre-feet

4.56 4,080 

8.16 7,310 

6.10 5,460

42.06 37,680

8.15 7,300 

6.56 5,880 

3.82 3,420 

3.22 2,880 

4.04 3,620 

2.60 2,330 

1.23 1,100 

1.00 896 

1.13 1,010

50.57 45,290

. 19 (9:30 a.m.) 522 sec. -ft. ; Jan. 4 (7 a.m. to 12 m.)

306 sec.-ft.; Feb. 17 (3 a.m.) 250 sec.-ft,; Feb! 26 (10 a.m.) 306 sec.-ft.

Note.- Shifting-control method used Oct. 1 to Dec.;. 1, Jan. 2 to Sept. 30.
142 SNOHOMISH RIVER BASIN

To It River neat Tolt, Wash.

Location.- Water-stage recorder, lat. 47°41'e5", long. 121°49'CO", in SjNE^- sec. 31, T. 

26 N., R. 8 E., 500 feet downstream from the Forks and 6 miles northeast of Tolt. Datum of gage is about 348 feet above mean sea level (river-profile survey).

Drainage area.- 80 square miles.

Records available.- August 1928 to January 1932, September 1937 to Septemter 1948.

Average discharge.- 14 years (1928-31, 1937-48), 554 second-feet.

Extremes.- Maximum discharge during year, 7,720 second-feet Oct. 19 (gage height, 10.59 

feet); minimum, 117 second-feet Oct. 1 (gage height, 4.44 feet).

1928-32, 1937-48: Maximum discharge, 11,700 second-feet Jan. 7, 19<-1 5 (gage height, 

12.14 feet), from rating curve extended above 4,500 second-feet; minimum, 63 secondfeet Sept. 25, 26, 1940; minimum gage height, 4.07 feet Sept. 23, 1938.

Remarks. - Records excellent except, those fur period of no gage-height record, which are 

poor. No diversion or regulation.

Rating tables, water year 1947-48 (gage height, in fe 

and discharge, in second-feet)

4.4 110

4.7 169

5.0 242

Oct. 1-18

5.4 370

5.8 545

6.2 790

Oct. 19 to Sept. 30

6.6 

7.0 

7.5

1,110

1,510

2,110

4.8 

5.1 

5.4 

5.8

180 

259 

3C4 

545

6.2 

6.6 

7.0 

7.5

790 

1,110 

1,510 

2,11O

8.0 2,790

8.5 3,560

9.0 4,410

Discharge, in second-feet, water year Octoberl947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

122

1,130

2 , 020

1,400

630

416

332

305

332

363

318

274

3O2

315

.898

1,620

2,110

1,910

3,780

1,400

972

748

846

734

600

660

530

572

520

630

818

Nov

1,190

972

988

804

720

1,260

2,990

3.B20

1,560

2,040

2,180

1,400

1,860

1 , 350

1,110

940

1,920

1,920

1,220

948

790

684

606

550

1,080

1,740

1,030

832

734

762

-

Dec.

1,070

818

1,100

790

654

572

545

510

535

486

486

467

1,?80

1,200

1 , 4F 1

1,350

2,370

1,740

1 , 300

940

860

832

1,150

1,860

1,200

972

1,090

1,350

1,000

797

964

Jan.

1,600

1,700 i , ooo

900

800

1,350

1 , 300

1,100

900

750

700

600

550

500

450

410

390

38O

370

360

360

550

650

700

620

540

450

360

340

320

300

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

June - . ......... ........ ...

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

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

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

Water year 1947-43 .....

Feb.

290

280

270

260

260

250

280

300

290

280

270

260

350

450

650

900

1,450

1,300

797

618

690

1,560

1,010

741

1,180

2,580

1,350

932

748

-

-

Secondfoot-days

27,607

40,000

31,748

265,292

21,300

20,596

15,773

21 , 264

37 452

28^254

10,513

12 , 682

11,933

279,122

Mar

666

606

545

495

481

481

486

453

431

401

389

364

372

353

353

337

322

334

326

330

768

1 , 350

734

572

525

476

467

540

648

618

550

Maximum

3,780

3,820

2,37O

5,600

1,700

2,580

1,350

1,510

2,370

1,400

628

940

1,040

3,820

Apr.

540

535

520

462

435

409

405

384

405

435

490

486

476

467

660

1,!T10

1^060

853

776

839

988

1,090

1,300

1,110

1,160

884

727

672

624

562

-

May

540

510

741

964

956

2,110

1,510

1,070

1,020

876

790

811

1,040

1,140

988

1,060

1,400

1,100

900

1,050

1,400

1,190

956

1,190

1,620

1,680

1,680

2,370

1,980

1,460

1,350

Minimum

122

550

467

104

300

250

322

384

510

550

207

199

199

122

June

1,270

1,300

1,350

1,010

1,010

1,240

1,400

1,300

1,220

1,060

1,140

932

860

734

660

811

1,040

762

720

868

1,330

1,110

853

720

642

578

578

612

624

550

-

Mean

891

1 333

1^024

727

687

710

509

709

1 , 208

942

409

398

763

July

467

405

405

397

360

495

515

414

364

364

337

308

294

291

288

291

289

288

269

265

253

244

233

225

207

209

628

486

36O

294

269

Per

square 

mile

11.1

16.7

12.8

9.09

8.59

8 . 88

6.36

15.1

11.8

4.24

5.11

4.98

9.54

Aug.

253

233

222

220

225

401

281

244

222

209

202

199

199

272

294

305

250

230

654

472

678

510

393

626

908

672

940

839

567

505

457

Sept.

389

376

530

426

356

319

294

275

250

239

225

217

204

199

422

360

265

230

21 L'

202

275

776

642

486

364

474

1,040

818

606

462

-

Runoff

Irches

12.83

18.60

14.76

123.32

9 90

9 57

?! 33

9. 89

17.41

13.13

4.89

5 90 

s!s5

1?9.76

Acre-feet

54,760

79,340

62,970

526,200

42,250

40,850

31,290

42,180

74,280

56,040 

20,350

25,150 

23,670

553,600

n.) 7,720 sec.-ft.; Nov. 8 (12:30 a.m.) 7,250

computed on basis of 1 discharge measurenear Startup.
SNOHOMISH RIVER BASIN 143

Cherry Creek near Duvall, Wash.

Location.- Water-stage recorder, lat. 47°44'40", long. 121°56'35", in NW£ sec. 17, T. 26 

W., K. 7 E., 2 miles east of Duvall and 2\ miles upstream from mouth.

Drainage area.- 19.4 square miles.

Records available.- June 1945 to October 1948 (discontinued).

Extremes.- Maximum discharge during period October 1947 to October 1948, 689 second-feet 

Oct. 19, 1947 (gage height, 3.46 feet); minimum, 4.1 second-feet Oct. 1, 1947 (gage 

height, 1.16 feet).

1945-48: Maximum discharge, 918 second-feet Feb. 2, 1947 (gage height, 3.65 feet); 

minimum, 2.2 second-feet Aug. 26, 27, 1947.

Remarks.- Records good except those for periods of shifting control, which ar<! fair. No 

Known diversion or regulation.

Discharge, In second-feet, 1947-48

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.

4.4

5.7

11

15

22

18

15

14

15.5

15.5

16.5

17

19.5

21

35

87

114

138

465

225

145

112

95

80

71

62

55

54

49

51

72

Nov.

215

211

184

165

140

235

346

452

276

235

346

272

239

365

261

190

165

208

181

150

118

101

80

50

46

51

51

49

46

46

Dec.

68

80

129

131

108

88

84

74

84

92

88

82

92

165

152

145

175

178

208

173

140

127

131

211

184

140

125

123

170

173

165

Jan.

284

342

314

289

228

246

261

232

178

196

199

155

123

101

84

71

56

49

43

39

38

39

54

76

70

60

52

47

46

47

45

Feb.

42

39

38

39

38

36

35

40

54

60

58

54

51

52

84

108

242

208

145

116

108

118

143

123

129

332

246

160

121

_

-

Mar.

99

94

85

76

70

64

59

56

50

45

42

38

37

36

35

35

35

35

. 35

36

53

178

134

101

88

76

68

64

59

55

47

Apr.

43

46

50

49

46

45

46

45

49

58

62

65

62

55

50

65

62

64

66

60

50

45

58

77

129

155

129

104

87

74

May

68

58

64

68

70

131

131

101

88

74

62

55

52

55

54

50

45

42

42

36

34

35

34

34

33

30

29

54

118

131

92

June

68

54

46

39

34

31

31

31

30

27

30

31

31

31

31

32

50

50

43

49

68

76

66

55

46

39

32

30

30

27

July

26

26

25

23

21

26

31

29

27

24

22

20

17

15.5

14

15

12.5

12.5

14

13.5

13.5

12.5

12

11

11

10.5

20

17

16.5

15

13.5

Aug.

11

10.5

10.5

12

12

12

12

11

10.5

9.8

9.8

9.3

9.3

9.3

11

10.5

12

12.5

33

33

29

25

21

23

25

26

28

38

35

30

28

Sept.

25

21

21

19.5

19.5

18.5

17

15

13.5

12

12

10.5

9.3

9.8

12

10.5

9.8

9.3

8.4

8.4

8.9

14

13.5

15.5

15

22

38

58

72

58

-

Peak discharge (base. 400 sec.-ft.).- Oct. 19 (7:15 a.m.) 689 sec.-ft.; Nc 

sec.-ft.; Nov. 11 { 3 p.m.; 431 sec.-ft.; Nov. 14 (3 a.m.) 415 sec.-ft. 

Note.- Shifting-control method used Nov. 8 to Mar. 8, Apr. 5 to Sept. 3O.

1948

8 (7:45 a.m.) 535

Day

Oct. 1

2

3

4

5

6

Discharge

45

36

31

39

62

62

Day

Oct. 7

8

9

10

11

12

Discharge

80

88

70

58

55

47

Day

Oct. 13

14

15

16

17

18

Discharge

42

36

32

29

29

29

Day

Oct. 19

20

21

22

23

24

Discharge

27

25

22

20

22

19.5

Day

Oct. 25

26

27

28

29

30

31

Discharge

18.5

20

20

18.5

18

a!9

a20

a Ho gage-height record; discharge computed on basis of records for nearby streams. 

Note.- Shifting-control method used Oct. 1-31.

Monthly discharge, in second-feet, 1947-48

Month

October 1947.... ...............

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

Calendar year 1947 .........

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

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

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

Water year 1947-48 .......... 

October 1948..................

Secondfoot-days

2,120.1 

5,474 

4,085

25,407.3

4,064 

3,019 

1,985 

1,996 

1,970 

1,238 

566.5 

569.0 

596.9

27,683.5 

1,139.5

Maximum

465 

452 

211

550

342 

332 

178 

155 

131 

76 

31 

38 

72

465 

88

Minimum

4.4 

46 

68

2.2

38 

35 

35 

43 

29 

27 

10.5 

9.3 

8.4

4.4 

18

Mean

68.4 

182 

132

69.6

131 

104 

64.0 

66.5 

63.5 

41.3 

18.3 

18.4 

19.9

75.6 

36.8

Per 

square 

mile

3.53 

9.38 

6.80

3.59

6.75 

5.36 

3.30 

3.43 

3.27 

2.13 

.943 

.948 

1.03

3.90 

1.90

Runoff

Inches

4.06 

10.49 

7.83

48.70

7.79 

5.79 

3.81 

3.83 

3.78 

2.37 

1.09 

1.09 

1.14

53.07 

2.18

Aore-feet

4,210 

10,860 

8,100

50, 400

8,060 

5,990 

3,940 

3,960 

3,910 

2,460 

1,120 

1,130 

1,180

54,920 

2,260
144 SNOHOMISH RIVER BASIN

Pilchuc-k River near Granite Falls, Wash.

Location.- Water-stage recorder, "lat. 48°03'15", long. 121°57'25", in SE^ see. 30, T. 30 

NT;R. 7 E., 200 feet upstream from road bridge and 2 miles south of Granite Falls.

Drainage area.- 53 square miles.

Records available.- May to October 1911, January 1943 to September 1948.

Extremes.- Maximum discharge during year, 4,700 second-feet Oct. 19 (gage height, 8.09 

feet); minimum, 60 second-feet Oct. 1 (gage height, 2.37 feet).

1911, 1943-48: 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. City of Snohomish diverts about 5 second-feet for municipal use. 

No regulation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet)

2.3 52 3.3 250 5.0 1,190 

2.5 78 3.6 360 5.5 1,610 

2.7 110 4.0 535 6.0 2,100 

3.0 170 4.5 830 5.5 2,650

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

793 

783 

449 

232

163 

132 

132 

224 

204

168 

136 

161 

170 

461

867 

900 

925 

2,350 

760

476 

340 

440 

356 

264

364 

257 

282 

254 

292 

414

Nov.

900 

670 

504 

40« 

372

961 

1,660 

1,500 

754 

1,060

1,270 

781 

913 

664 

522

432 

688 

712 

494 

404

332 

285 

250 

226 

604

922 

490 

372

306 

339

Dec.

664 

463 

868 

560 

404

328 

302 

274 

348 

313

356 

332 

1,050 

691 

840

704 

1,400 

1,080 

984 

652

540 

517 

640 

982 

550

432 

508 

640 

526 

427 

460

Jan.

996 

979 

688 

712 

570

966 

900 

718 

512 

555

522 

432 

360 

324 

285

260 

244 

226 

210 

197

187 

254 

975 

742 

436

324 

271 

238 

217 

215 

197

Feb.

184

170 

166 

163 

152

142 

142 

226 

241 

212

189 

177 

168 

192 

486

388 

1,480 

970 

535 

384

601 

1,330 

824 

' 565 

941

1,880 

966 

624 

463

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ber........ .............................

lendar year 1947

st

ter year 1947-48 .......................

Mar.

400 

364 

310 

278 

257

241 

217 

250 

235 

215

204 

194 

204 

202 

189

184

172 

199 

215 

210

934 

1,580 

658 

463 

409

368 

360 

400 

404 

380 

388

Apr.

545 

432 

476 

388 

340

316 

384 

364 

392 

504

550 

490 

 422 

372 

422

700 

472 

400 

368 

356

368 

404 

716 

935 

935

602 

458 

380 

336 

292

Secondfoot-days

13,811 

19,787 

18,835

131,661

14,712 

14,961 

11,114 

14,119 

14,066 

9,628 

4,450 

5,579 

6,407

147,469

Peak discharge (base, 2,500 sec. -ft.).- Oct. 19 (2 a.

May

271 

247 

422 

742 

648

1,210 

652 

472 

409 

348

302 

299 

432 

596 

450

400 

384 

310 

271 

288

364

310 

260 

299 

372

372 

388 

668 

865 

570 

445

Maximum

2,350 

1,660 

1,400

2,760

996 

1,880 

1,580 

935 

1,210 

870 

344 

674 

594

2,350

June

380 

360 

364 

278 

271

310 

332 

306 

282 

257

282 

250 

238 

215 

189

484 

498

316 

260 

379

870 

550 

380 

296 

250

223 

212 

212 

204

180

July

155 

144 

140 

140 

128

242 

344 

254 

189 

166

148 

142

130 

123 

119

114

112 

108 

103 

112

105 

98 

92 

88 

82

82 

254 

175 

142 

117 

102

Aug.

93 

87 

86 

98 

110

117 

103 

93 

88 

84

81 

78 

80 

92 

112

134 

103 

90 

107 

124

356 

270 

168 

367 

674

348 

476 

340 

223 

215 

182

Minimum M*an

62 446 

226 660 

274 608

40 361

187 475 1 

142 516 

172 359 

292 471 

247 454 

180 321 

82 144 

78 180 

84 214

62 403

m.) 4,700 sec. -ft.; Feb. 26 (8:30

Sept.

152 

158 

384 

242 

172

146 

138 

121

110 

105

96 

92 

87 

84 

267

190 

128 

108 

98 

92

123 

510 

278 

217

170

246 

512 

594 

481 

306

Runoff in 

acre-feet

27,390 

39,250 

37,360

261,200

29,180 

29,670 

22,040 

28,000 

27,900 

19,100 

8,830 

11,070 

12,710

292,500

a.m. )

2,650 sec. -ft.; Mar. 22 (12:30 a.m. 3,130 sec. -ft.
SNOHOMISH RIVER BASIN 145

Little Pilchuck Creek near Lake Stevens, Wash.

Location.- Water-stage recorder and wooden control, lat. 48°02'00", long. 122°03'00", in 

 NW^-NW^ sec. 4, T. 29 N. , R. 6 E., ij miles northeast of Lake Stevens and 2 miles upstream from Stevens Creek.

Records available.- June 1946 to September 1948.

Extremes.- Maximum discharge during year, 322 second-feet Nov. 11 (gage heigtt, 4.57 feet); 

minimum, 1.8 second-feet Oct. 1 (gage height, 0.79 foot).

1946-48: Maximum discharge, that of Nov. 11, 1947; minimum, 1.3 seconc'-feet Aug. 

24, 1946 (gage height, 0.74 foot).

Remarks.- Records good. sveral small farm diversions above station.

Rating table

1.0 

1.2

er year 1947-48 (gage height, 

ischarge, In second-feet)

1.7 

2.0 

2.3 

2.6

3.0 

3.4 

3.9 

4.4

107

146

214

295

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

1.9 

3.2 

3.8 

3.5 

3.2

3.0 

2.7 

2.6 

3.0 

2.7

3.0 

2.7 

2.9 

3.0 

7.7

14 

17 

24 

68 

47

33 

24 

21 

18 

16

17

15 

14 

13 

16 

24

Nov.

68 

83 

70 

54 

51

116 

185

192 

130 

130

288 

261 

185

140 

120

99

89 

89 

77 

71

60

51 

44 

38 

45

80 

74 

62

52 

59

Dec.

89 

80 

125 

111 

86

69 

66 

60 

67 

60

55 

48 

59 

69

60

60 

92 

115 

135 

103

86 

86 

83 

103

92

78

83 

96 

96 

80 

74

Jan.

83 

107 

103 

111 

99

107 

99 

86 

72 

70

72

63

45

40

36 

33 

29 

28

25

24 

36 

83

92 

78

62

50 

41

;s

42 

37

Feb.

33 

31 

28 

28 

26

23 

22 

40 

62 

59

47 

40 

37 

39 

49

53 

99 

99 

80 

66

62 

76 

107 

96 

89

178 

185 

125 

89

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Peak discharge (base, 150 sec. -ft.).- Nov.

ft.; Feb. 27 (2 a.m. 199 sec. -ft.

Mar.

75 

70 

64 

48 

42

38 

36 

36 

31 

28

26 

24 

23 

21 

20

19 

18

23 

31 

30

38 

107 

92 

72 

60

49 

40 

34 

30

23

26

Apr.

28 

38 

70 

74 

71

62 

65

53 

51 

60

60 

52 

46 

40 

35

36 

31 

29 

28

25

23

22

28 

49

50 

47 

40 

37

32

May

29 

27 

40 

57 

59

107

103 

79 

60 

48

40 

40 

56 

50 

42

37 

34 

29 

25 

22

20 

17 

16 

15 

13

12 

13 

46 

96 

111 

80

roTt-Says »* 

429.9 68 

3,063 288 

2,566 135

12,011.1 288

,944 111 

,968 185 

,279 107 

,304 74 

,423 111 

737.8 56 

203.2 15 

118.7 6.2 

142.9 20

15,179.5 288

7 (11:30 p.m. ) 206 sec.

June

52

57 

28 

24 

19

16 

13 

11 

9.8 

8.5

12 

15 

18 

17 

14

19 

42 

37 

28

34

56 

55 

43 

32 

25

21 

17 

14 

11

9.5

July

8.2 

7.3 

6.5 

6.0

6.0

13 

14 

15 

13 

11

9.8 

8.5 

7.3 

6.0 

5.2

4.5 

4.0 

3.7 

4.0 

4.5

4.5 

3.8 

3.7 

3.5 

3.3

3.3 

5.7 

5.4

4.7 

4.3

3.5

Minimum

1.9 

38 

48

1.7

24 

22 

18 

22 

12 

8.5 

3.3 

2.9 

2.0

1.9

-ft.; Nov.

Aug.

3.3 

3.2 

3.3 

3.8 

4.3

4.5 

4.0 

3.7 

3.3 

3.3

3.2 

3.0 

3.0 

3.0 

3.2

3.2 

3.0 

2.9 

2.9 

2.9

3.5 

4.3

s'.o

6.2

5.7 

5.0 

5.7 

4.5 

4.3 

3.8

Mean

13. S 

102 

82.8

32.9

62.7 

67.9 

41.3

43.5 

45.9 

24.6 

6.55 

3.83 

4.76

41.5

11 (6 p.m.

Sept.

3.3 

3.2 

3.5 

3.3 

3.0

2.7 

2.5 

2.3 

2.2 

2.2

2.1 

2.2 

2.1 

2.0 

2.4

2.5 

3.3 

2.3 

2.1 

2.4

2.1 

3.3 

3.3 

3.2 

2.7

9.7 

16 

20 

18 

13

Runoff in 

acre-feet

853 

6,080 

5,090

23,830

3,860 

3,900

2,540 

2,590 

2,820 

1,460 

403 

235 

283

30,110

) 322 sec.-
146 SNOHOMISH RIVER BASIN

Lake Stevens at Lake Stevens, Wash.

Location.- Staff gage, lat. 48°00'40", long. 122°04'00", in SW£ sec. 8, T. 29 N. , R. 6 

on pile in log ramp at Huess sawmill in town of Lake Stevens.

Records available.- July 1946 to September 1948 (fragmentary).

Extremes.- Maximum gage height observed during year, 4.73 feet Jan. 6; minimum observed 

a.bu reet Oct. 7.

1946-48: Maximum gage height observed, that of Jan. 6, 1948; minimint observed, 

2.38 feet Oct. 1, 1946.

Remarks.- Several small diversions from lake for irrigation.

Gage height, in feet, vnter year October 1947 to September 1948

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.

_

_

_

_

-

_

2.50

2.51

_

-

_

_

_

2.51

-

_

-

-

-

-

3.03

-

-

-

_

-

3.08

-

-

-

NOT.

_

_

_

3.40

-

_

_

_

-

-

_

4.02

_

_

-

_

_

4.21

_

-

_

-

-

-

4.04

_

-

-

-

-

-

Deo.

.

4.03

_

_

-

_

_

_

4.12

-

_

_

_

_

-

4.12

_

_,

-

_

-

_

4.39

-

.

-

_

_

4.50

-

Jan.

_

_

_

_

-

4.73

_

_

_

-

_

_

4.46

_

-

4.36

_

_

4.13

_

-

_

_

-

_

4.00

-

-

-

-

Feb.

.

_

_

_

-

.

_

_

_

3.80

_

_

_

_

-

_

3.84

_

_

-

_

_

_

4.06

4.07

4.23

_

_

_

-

Mar.

_

4.28

_

-

.

_

_

4.10

_

_

_

-

3.88

_

_

-

_

_

4.08

-

_

_

_

_

4.02

-

Apr.

_

_

_

-

4.12

_

_

-

4.26

4.26

_

-

_

_

_

_

4.18

_

_

_

_

-

_

4.16

_

_

_

-

May

_

_

.

4.20

-

_

_

_

_

-

4. as

_

4.30

_

_

4.22

_

-

.

_

_

4.04

_

_

_

-

_

-

June

4.34

_

_

_

-

_

_

3.94

_

-

_

_

_

.

3.68

_

_

_

-

_

3.<58

_

_

-

_

_

_

3.46

_

-

July

.

_

_

_

-

3.26

_

_

_

-

_

_

3.10

_

-

.

_

_

.

2.96

_

_

_

_

-

2.85

2.90

_

_

-

Aug.

_

2.78

-

.

_

_

_

2.70

_

_

_

-

.

2.64

_

_

-

_

_

_

2.68

-

_

_

_

_

_

2.68

Sept.

_

_

_

-

.

2.62

.

-

_

_

2.59

_

_

..

_

-

2.56

_

_

_

-

_

2.72

2.71

-
SNOHOMISH RIVER BASIN 147 

Stevens Creek at Lake Stevens, Wash.

Location.- Staff gage, lat. 48°01 I 00", long. 122°03 I 10", on east line sec. 8, T. 29 N., R. 

6 K., a third of a mile east of Lake Stevens and three-quarters of a mile upstream 

from mouth.

Records available.- June 1946 to September 1948.

Extremes.- Maximum discharge observed during year, 107 second-feet Feb. 26; maximum gage 

height observed, 2.68 feet Jan 7; minimum discharge observed, 0.2 second-foot Oct. 8 

(gage height, 0.80 foot).

1946-48: Maximum discharge observed, that of Feb. 26, 1948; minimum observed, 0.2 

second-foot Oct. 1, 2, 1946, Oct. 8, 1947.

Remarks.- Records fair. Gage read once daily. Several diversions from Lake Stevens for 

irrigation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.5 

.4 

.4 

.3

.3 

.3 

.2 

.5

.5

.7 

.7 

.5 

.7

.7 

4.6 

5.3 

17 

13

10 

10 

9.1 

9.1 

9.1

9.1 

10 

10 

11 

12 

12

Nov.

30 

25 

25 

24 

27

40 

50 

47 

42 

48

49 

46 

42 

45

44

53 

58

66 

66 

62

57 

53 

52 

50 

52

50 

49 

48 

47 

52

Dec.

57 

55 

54 

53 

59

55

57 

64 

62 

54

53 

59 

55 

59 

58

61 

62 

61

62 

64

64 

66 

66 

68 

69

68 

66 

69 

68 

66 

65

Jan.

74 

71 

71 

71 

69

79 

105 

100 

89 

89

89 

79 

79 

69

64

62 

58 

52 

51 

50

49 

51 

56 

59 

57

55 

50 

49 

47 

48 

48

Feb.

46 

44 

42 

42 

40

39 

38 

44 

44 

46

45 

44 

42 

42

46

48 

51 

50 

50 

49

54

69 

74 

69 

79

105 

94 

94 

84

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

79 

74 

64 

62 

59

53 

48 

44

44 

44

43 

41 

40 

38 

36

35

33 

32 

36 

40

48 

60 

55 

51 

48

44 

43 

41 

40 

38 

35

Apr.

48 

46 

48 

50 

48

48 

48 

46 

48 

48

48 

50 

46 

44 

44

43 

43 

41 

38 

36

35 

33 

33 

38 

38

40 

38 

38 

38 

36

Secondfoot-days

159.0 

1,399 

1,899

9,136.1

2,040 

1,614 

1,448 

1,278 

1,373 

1,248 

475.1 

198.2 

109.3

13,240.6

May

35 

36 

36 

4O 

44

53 

51 

48 

50 

48

48 

44 

46 

45 

48

50 

50 

46 

43 

41

41 

38 

33 

33 

32

29 

27 

30 

60 

74 

74

Maximum

17

66 

69

95

105 

105 

79 

50 

74 

69 

24 

11 

12

105

June

69 

69 

64 

62 

55

51 

44 

41 

38 

35

36 

36 

38 

38 

36

38 

41 

40 

36 

40

46 

44 

41 

36 

33

32 

30 

27 

26 

26

July

24 

23 

22 

18 

17

19 

21 

19 

21 

23

22 

21 

18 

17 

16

15 

15 

14 

14 

14

13 

12 

12 

11

9.6

7.3 

7.3 

7.3 

7.3 

8.0 

7.3

Minimum

0.2 

24 

53

.2

47 

38 

32 

33 

27 

26 

7.3 

4.9 

1.6

.2

Aug.

8.4 

7.6 

10 

11 

11

11 

10 

7.0 

5.9 

5.4

5.4 

5.4 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.2

5.2

4.9 

5.2 

4.9 

4.9 

5.2 

5.2

Meai

5.13 

46.6 

61.3

25.0

65.8 

55.7 

46.7 

42.6 

44.3 

41.6 

15.3 

6.39 

3.64

36.2

Sept.

5.2 

4.9 

4.9 

4.9

3.4

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

1.8 

1.8 

1.8

1.6 

1.6 

1.6 

1.6 

1.6

1.8 

1.8 

1.6 

1.6 

1.6

5.2 

5.6 

5.6 

12 

12

Runoff In 

acre-feet

315 

2,770 

3,770

18,110

4,050 

3,200 

2,8'7 0 

2,530 

2,720 

2,480 

942 

393 

217

26,260
3NOHOMISH RIVER BASIN

Bubuque Creek near Lake Stevens, Wash.

Records available.- July 1946 to September 1948.

Extremes.- Maximum discharge during year, 194 second-feet Nov. 11 (gage height, 4.70 

feet) ; minimum, 0.3 second-foot Oct. 1.

1946-48: Maximum discharge, that of Nov. 11, 1947; minimum, 0.3 second-foot Aug. 25- 

27, Oct. 1, 1947.

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

Ratine table, water year 1947-48, except period of shifting control 

(gage height, In feet, and discharge, In second-feetJ

1.97 0.3 2.8 36

2.0 .5 3.0 73

2.4 9.2 3.6 116 

2.6 19 4.0 146

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.9 

1.6 

1.4 

1.1

.7 

.7 

.7 

1.2

1.2

1.2 

1.0 

1.1 

1.2 

4.3

11 

14

26 

123 

81

31

18

16 

12 

10

12 

9.7 

12 

11 

13 

2?

Nov.

94 

99 

74

36 

34

99 

120

109

76 

76

146 

102 

86 

59 

35

25 

30 

54 

34

26

21 

17 

14 

12 

14

30

26 

20 

16

22

Dec.

73 

61 

93 

77

36

24

25 

22 

30 

31

27 

21

26 

46 

33

29

71 

88 

96 

80

48 

35 

28

66 

50

a40 

a35 

a40 

a 50 

a35 

a30

Jan.

a 50 

a80 

a 90 

a80 

a 60

a90 

a97 

a80 

a 50 

a 55

aeo

a40 

a30 

a25 

a20

15 

14 

13 

12 

11

11ie

59 

77 

44

27 

21 

18 

17 

18 

16

Feb.

15 

14 

13 

13 

12

11 

12 

21 

32 

32

25

20 

21 

31

40 

102 

90 

63 

35

38 

65 

87

68 

63

112 

99 

70 

34

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Peak discharge (base, 125 sec. -ft.).- Oct.

Mar.

22 

18 

15

12 

10

9.2 

8.8 

9.2 

7.7 

6.9

6.2 

5.F 

5.3 

4.7 

4.5

4.2 

4.0 

5.3 

11 

15

53 

106 

84

42

26

17

14 

12 

11 

10 

9.2

Apr.

10 

14 

29 

28 

21

18 

30 

19 

18 

20

68 

46 

25 

16 

15

15 

14 

14 

14

13

12 

12 

13 

16 

24

22 

18 

17 

15

May

14 

13 

19 

54 

44

78 

54 

28 

22 

19

16 

19 

19

17

16 

15 

13 

11 

11

9.2

8.0 

7.7 

7.3 

6.2

5.6 

6.2 

24 

64 

73

£££. *"! 

440.3 123 

1,606 146 

1,446 96

6,995.7 146

1,296 

1,260 

568.8

621

318.2 

60.7 

44.2 

86.3

97

112

106

78 

30 

5.3 

3.5 

15

8,488.7 146

June

20 

14 

11 

9.2 

7.7

6.2 

5.0 

4.2 

3.7

3.0

5.0

5.3 

6.6 

6.2 

4.7

9.8

18 

15 

11

16

30 

28 

20 

15 

11

9.7

7.7 

6.2 

5.0 

4.0

July

3.3

2.8 

2.4 

2.3 

2.3

4.2 

5.3 

4.7 

3.5

2.8

2.3 

1.9

1.6 

1.4 

1.3

1.1

1.0 

.9 

1.1 

1.3

1. 2 

1.0 

.9 

.9

.8

.8 

2.4 

1.8 

1.4 

1.1 

.9

Aug.

0.7 

.7 

.7 

.1 

.4

.4

.0 

.9

.8

.7 

.7 

.7 

.7 

1.1

1.4 

1.1

.9 

1.4 

1.2

1.4

1.8 

1.3 

2.3 

3.3

2.3

2.3 

3.5

2.3 

2.1 

1.8

Sept.

.5 

.4

.8 

.8 

.4

ll

.0 

.9 

.9

.8 

.8 

.7 

.7 

1.0

1.2 

1.0 

.9

.8 

.7

1.0 

1.9 

1.6 

1.4 

1.3

5.4 

11 

15 

It 

11

Minimum M^an ac e feet

0.3 14.2 873 

12 53.5 3,190 

21 46.6 2,870

.3 19.2 13,890

11 41.8 2,570 

11 43.4 2,500 

4.0 18.3 1,280 

10 20.7 1,230 

5.6 23.9 1,470 

3.0 10.6 631 

.8 1.96 120 

.7 1.43 88 

.7 2.88 171

.3 23.2 16,990

19 (9 a.m. J 146 sec. -ft.; Nov. 8 (5 a.m. J 134 sec. -ft.;

Nov. 11 (11:30 a.m.) 194 see.-ft.

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

Woods Creek near Monroe.

Note.- Shifting-control method i.sed Oct. 1 to Dec. 25.
SNOHOMISH RIVER BASIN 149

Wood Creek near Everett, Wash.

Location.- Water-stage recorder and wooden control, lat. 47°55'25", long. 122°11'00", on

 east line sec. 8, T. 28 N., R. 5 E., 300 feet upstream from county road crossing ana 

2 miles south of Everett.

Records available.- June 1946 to October 1948 (discontinued).

Extremes.- Maximum discharge during period October 1947 to October 1948, 26 second-feet

 Oct. 18 1947 (gage height, 1.49 feet), from rating curve extended above 9 second-feet; 

minimum! 1^8 second-feet Oct. 17, 1947 (gage height, 0.78 foot), apparently result of 

temporary jam above gage. .

1946-48: Maximum discharge, 35 second-feet Feb. 2, 1947 (gage height, 1.54 feet), 

from rating curve extended above 9 second-feet; minimum, that of Oct. 17, 1947.

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

 No taiown diversion or regulation.

Discharge . in second-feet. 1947-48 _ _. __

Day

1

2

3

4

5

6

7 

6

9 

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24 

25

26 

27 

28 

29 

30

31

Oct.

4.0

4.2

4.0

4.0

3.8

4.0

4.0

4.2

4.2

4.0

4.0

3.8

4.0

3.8

4.8

4.2

4.4

6.3

5.6

4.4

4.2

4.2 

4.2

4.4 

4.4

4.4 

4.6 

4.8 

4.8 

4.8

5.3

Nov.

5.8

5.3

5.1

4.8

5.1

6.1

6.1

5.6

5.3

5.8

5.1

5.6

5.3

5.1

5.1

4.8

5.6

5.1

4.8

4.8

4.8

4.6 

4.6

4.4 

4.4

4.6 

4.4 

4.4 

4.4 

5.3

Dec.

5.1

5.3

5.3

5.1

4.8

4.8

4.8

4.6

4.8

4.6

4.6

4.6

5.6

5.1

5.1

5.3

5.6

6.1

6.3

5.8

5.6

5.3 

7.2

7.2 

6.3

5.8 

7.2 

7.2 

7.8 

6.6

6.6

Jan.

9.0

8.6

8.4

9.0

8.6

8.6

9.0

8.6

8.2

8.6

7.6

6.6

5.8

5.8

5.3

fS.l

fS.l

5.1

5.1

5.1

5.1

5.3

5.6

5.6 

5.3

5.1 

5.1 

5.1 

4.8 

5.1

4.8

Feb.

4.8

4.8

4.8

5.1

4.8

4.8

4.8

5.6

5.6

5.1

5.1

5.1

5.1

5.1

7.2

8.6

8.6

8.0

8.0

7.6

7.6

7.6 

8.0

7.6 

9.6

10 

9.6 

8.4 

7.8

-

Mar.

7.2

7.2

6.6

6.6

6.3

6.3

6.3

6.1

6.1

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

6.1

S.6

6.3

8.6

9.0 

8.4

7.5 

7.2

6.6 

6.6 

6.3 

6.1 

5.8

5.8

Apr.

5.8

6.3

6.6

6.3

6.3

6.6

6.6

6.3

6.6

6.6

6.6

6.6

6.6

6.3

6.3

6.1

6.1

6.1 5.8-

5.8

5.8

6.1 

6.1

6.6 

6.6

6.9 

6.9 

6.6 

6.6 

6.3

~

May

6.1

6.1

7.5

6.9

7.5

8.4

7.8

6.9

6.6

6.6

6.6

7.5

7.5

6.9

6.6

6.6

6.3

6.3

6.3

6.1

6.1

6.1 

6.1

5.8 

5.8

5.8 

6.1 

10.5 

11 

10,5

9.1

June

8.1

6.9

6.6

6.3

6.1

5.8

5.8

5.8

5.6

5.6

6.6

6.1

6.6

6.1

5.8

7.5

6.1

4.8

4.6

5.1

4.8

4.4 

4.2

4.0 

4.0

4.2 

4.0 

4.0 

4.0 

3.8

"

July

3.8

4.0

4.0

4.2

4.2

4.4

4.4

4.6

4.6

4.6

4.6

4.6

4.4

4.8

4.6

4.8

4.6

4.8

5.1

5.1

5.3

5.3 

5.3

5.3 

5.3

5.3 

5.6 

5.3 

5.1 

5.1

5.1

Aug.

5.1

5.1

5.1

5.3

5.3

5.3

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.3

5.1

5.1

5.1

5.6

5.3

5.3

5.3 

5.3

5.3 

5.3

5.1 

5.3 

5.1 

5.1 

5.1

4.8

Sept.

4.8

5.1

5.1

5.1

4.8

.8

.6

.6

.6

.6

.6

.8

.8

.8

.1

.8

.8

.8

.8

.8

.8

.8 

.6

.6 

.6

6.1 

5.6 

6.3 

5.3 

5.1

f Computed on basis of partly estimated gage-height record. 

Mote.- No gage-height record Jan. 5-15, Jan. 18 to Feb. 25; discharge computed on basis 

range In stage and records for Fatterson Creek near Fall City.

of recorded

Day

Oct. 1 

2 

3 

4

5

Discharge

5.1 

5.3 

5.3 

6.3 

6.1

Day

Oct. 6 

7 

8 

9 

10

Discharge

5.8 

5.8 

5.8 

5.6 

6.3

Day

Oct. 11

12 

13 

14

Discharge

6.1 

5.8 

5.6 

5.6

Monthly discharge, In second-feet, 1947-48

Month

Mflv

Water year 1947-48 .......................

October 1-14, 1948. .........................

Secondfoot-days

152 2

148 2

2,092.0

80.5

Maximum

11

6.3

Minimum

3.8

5.1

Mean

5 * 20

5.72

5.75

Runoff In 

acre -feet

4,150

160
150 SNOHOMISH RIVER BASIN 

Quilceda Creek near Marysville, Wash.

Location,- Water-stage recorder and wooden control, lat. 48°06'20", long. 122°09'40", In

 Wi^iiM sec. 9, T. 30 N. , R. 5 E., 300 feet downstream from Middle Fork Quilceda Creek 

and 3$ miles north of Marysville.

Records available.- June 1946 to September 1948.

Extremes.- Maximum discharge during year, 135 second-feet Feb. 26; maximum gage height,

 fa.19 feet Nov. 11; minimum discharge, 3.9 second-feet Sept. 21 (gage height, 1.59 feet). 

1946-48: Maximum discharge, that of Feb. 26, 1948; minimum, 3.8 second-feet Aug. 21- 

24, 1946.

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

Several diversions above station for irrigation. No regulation.

Rating table, water year 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

1.5 

1.7 

1.9 

2.1

3.6

10

18

2.4 

2.7 

3.0 

3.5

4.0 

4.5 

5.0

109

130

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

6.8 

6.4 

5.8 

5.6

5.3 

5.3 

5.3 

5.6 

5.3

5.3 

5.0 

5.3 

5.3 

8.7

14 

15 

22 

50 

27

19 

16 

18 

14 

13

14 

12 

12 

11 

19 

25

Nov.

50 

38 

34 

25 

25

68 

93 

86 

56 

76

117. 

89 

82 

69 

71

54 

48 

46 

36 

35

29

25 

21 

18 

28

48 

38 

31 

26 

34

Dec.

53 

46 

86 

62 

46

35 

38 

32 

38 

32

30 

26 

39 

44 

38

43 

69 

82 

82 

62

62 

71 

74 

76 

69

53 

91 

91 

83 

62 

58

Jan.

72 

83 

74 

91 

69

78 

71 

63 

51 

54

54 

48 

39 

35 

32

 31 

28 

27 

25 

24

22

35 

74 

71 

51

41 

33 

29 

31 

35 

30

Feb.

29

26 

26 

28 

26

22 

22

43 

58 

44

35 

30 

29 

28 

32

37 

71 

63 

48 

39

41 

77 

105 

71 

74

125 

109 

78 

60

Month

Oc to 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

ter year 1947-48 .......................

Peak discharge (base, 110 sec. -ft. .- Nov.

ft.; Feb. 22 (12 p.m. ) 121 sec. -ft.; Feb. 26 

Note.- Shifting-control method used Oct. 2

Mar.

63 

56 

46 

39 

34

32

31 

30 

27 

24

23 

22

21 

21 

20

19

20 

24 

24 

23

30 

74 

53 

41 

36

31 

27 24 

23 

22 

21

Apr.

24 

36 

58 

53 

49

43 

44. 

35 

37 

48

43 

35 

33 

28 

25

25 

23 

22 

21 

20

19 

21 

20 

27 

43

38 

34 

30 

30 

26

Secondfoot-days

387.3 

1,496 

1,773

8,365.5

1,501 

1,476 

981 

990 

1,202 

698 

356.3 

255.5 

230.9

11,347

May

26 

23 

36 

49 

55

105 

72 

51 

41 

37

32

36 

48 

38 

31

32 

28 

23 

21 

19

18 

17 

16 

15 

14

14 

15 

50 

89 

95 

56

Maximum

50 

117 

91

117

91 

125 

74 

58 

105 

56 

25 

11 

25

125

June

36 

26 

23 

20 

17

15 

14 

13 

12 

11

18 

17 

20 

18 

15

25 

56 

39 

28 

37

49 

41 

30

23 

21

19 

16 

14 

13 

12

July

12 

11 

10 

11 

11

16 

24 

25 

18 

15

13 

12 

12 

10 

9.8

9.4 

9.4 

9.4 

10 

10

10 

10 

10 

8.7 

7.9

7.9 

11 

9.1 

8.3 

7.9 

7.5

Aug.

7 

7 

7 

9 

8

8 

7 

7 

7 

7

7 

6 

6 

6 

7

7 

6 

6 

7 

7

9 

9

7 

11

11

9 

9 

10 

8 

9 

8

Minimum Mean

5.0 12.5 

18 49.9 

26 57.2

4.4 22.9

22 48.4 

22 50.9 

19 31.6 

19 33.0 

14 38.8 

11 23.3 

7.5 11.5 

6.8 8.24 

4.4 7.70

4.4 31.0

11 (9 a.m.) 125 sec. -ft.; Dec. 27 (3:30 p.m. 

(1 p.m.) 135 sec. -ft.; May 29 (8 to 9 p.m.) 

-18, Nov. 1 to Jan. 9, Aug. 29 to Sep*;. 30.

.5 

.2 

.9

.4 

.7

.7 

.9 

.5 

.5 

.2

.2 

.8 

.ff 

.8 

.5

.2

.8 

.8 

.5 

.9

.4 

.4 

.9

.4 

.8

.3 

.8 

.7

Sept. .

7.5 

7.2 

8.3 

7.2 

6.4

6.1 

5.3 

5.3 

5.3 

5.0

5.0 

5.0 

4.7 

4.7

5.6

5.0

4.7 

4.7 

4.4 

4.4

5.6 

6.8 

5.8 

5.6 

5.3

16 

17 

25 

19 

13

Runoff In 

acre-feet

768 

2,970 

3,520

16,590

2,980 

2,930 

1,950 

1,960 

2,380 

1,380 

707 

 507 

458

22,510

) 117 sec.- 

117 sec. -ft.
STILLAGUAMISH RIVER BASIN 15 

South Fork Stillaguamish River near Granite Falls, Wash.

Location^- Water-stage recorder lat 48=06'10", lonS . 121°S6'40", in SWfcw£ sec. 8 T 

Falls! ? upstream from Canyon Creek and 2 miles northeast of Granite

Drainage area.- 119 square miles.

Records available.- July 1928 to September 1948.

Average discharge.- 20 years, 999 second-feet.

Extremes.- Maximum discharge during year, 23,400 second-feet Oct. 19 i

height

: Maximum discharge, 26,700 second-feet Feb. 26

Revisions (water years).- W 902: 1939.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second -feet)

Oct. 2 to Sept. 30

 149 

174

3.7 

4.0 

4.3 

4.6

219

320

455

620

5.0 

5.5 

6.0 

7.0

860

1,240

1,700

2,820

8.0 

9.0

10.0

11.0

4,250

5,990

8,000

10,300

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

164

4,620

4,920

2.560

1,160

752

572

614

888

824

662

505

549

554

2,620

3,630

3,940

4,670

9,500

2,180

1,380

1,040

1,*«0

1?080

902

1,300

848

965

812

1,040

1,500

Nov.

2,320

1,420

1,160

965

848

1,320

3,270

3,940

1,800

2,060

2,060

1,330

1,750

1,330

1,120

895

1,790

1,850

1,160

916

770

686

596

532

813

2,090

1,160

881

764

746

-

Dec.

1,240

895

1,590

923

770

656

596

538

590

516

549

527

3,270

2,060

1,990

1,780

5,520

3,630

2,220

1,420

1,330

1,420

2,790

3,940

1,960

1,380

1,600

1,900

1,500

1,300

1,800

Jan

2,000

2,500

2,000

1,800

1,500

2,000

1,700

1,500

1,300

1,200

1,300

1,100

1,000

900

800

700

600

500

450

440

415

560

1,160

1,120

788

632

538

485

450

425

382

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

360

324

316

324

291

257

274

430

405

324

111

274

264

377

1,160

704

3,270

2,680

1,280

874

1,270

3,510

1,600

1,120

1,480

3,780

1,900

1,240

909

_

-

Secondroot-days

58,211

42,342

52,200

418,679

32 245

31J274

21, 506

36,254

46^794

15,070

16,526

23,993

436,321

Mar.

854

752

656

566

538

505

516

505

460

415

396

374

405

396

369

356

340

415

396

378

2,050

2,860

1,040

764

680

614

614

770

916

842

764

Maximum

9,500

3,940

5,520

9,500

2,500

3,780

2 ,86C

2 ,82(

3,780

2,580

965

1,280

2,680

9,500

Apr.

965

806

836

674

602

560

608

560

602

824

881

812

758

710

998

2,7UO

1,900

1,460

1,280

1,380

1,700

2,230

2,820

2,640

2,120

1,380

1,040

874

812

722

-

May

692

644

1,260

1,700

1,710

3,780

2,280

1,560

1,330

1,160

1,040

1,120

1,080

2,340

1,600

1,650

1,960

1,COO

1,330

1,600

2,400

2,230

1,700

2,010

2,760

3,020

3,140

3,780

3,140

2,230

2,060

Minimum

164

532

516

128

257

340

560

644

788

298

241

247

164

June

2,010

2,060

2,340

l.SOO

1,750

2,230

2,580

2,460

2,340

2,060

1,850

1,460

1,380

1,240

1,040

1,380

1,700

1,200

1,160

1,240

2,120

2,340

1,000

895

842

788

788

902

965

874

Mean

1,378

1,411

1,684

1,147

1,040

1,078

694

1^932

1,560

486

533

800

1,192

July

704

549

527

554

490

608

806

632

495

505

475

445

415

410

440

470

470

470

450

400

?70

370

350

320

298

298

965

620

435

369

360

Per 

square 

mile

15

11.9

uig

9.64

8 . 74

9.06

5. 83

10.2

16 . 2

13.1

4 08

4. 48

6.72

10.0

Aug.

378

348

316

382

405

387

313

277

264

253

241

241

241

306

340

470

528

295

564

400

1,150

1,

365

^30

704

1,000

776

1,

374

200

752 70''

572

Sept.

465

485

1,160

848

596

480

410

360

336

313

295

281

260

247

2,110

1,110

662

495

410

352

1,060

2,680

1,460

1,000

716

932

1,200

1,420

1,080

770

-

Runoff

Inches

19

13 23

leisi

13C.83

1C. 08

S.77

£.72

11.33

IE. 72

14. 62

4.71

5.16

7.50

136.34

Acre-feet

115,500

83 , 980

103,500

830,400

63,960

62 ,030

42,660

71,910

00*0-1

29 ,890

32, 780

47,590

865,400

Peak discharge (base, 8,000 Bee.-ft.).- Oct. 19 (l a.m.) 23,400 sec.-ft.; Dec. 17 (8 a.m.) 8,430 

sec.-ft.

Note.- No gage-height record Dec. 27 to Jan. 18, July 15-24; discharge computed on basis of recorded range in stage and records for nearby streams.

939922 0-51-11
152 STILLAGUAMISH RIVER BASIN

South Pork Stillaguamish River above Jim Creek, near Arlingtoi, Wash.

Location.- Water-stage recorder, lat. 48 0 09'55", long. 122°03'55", in SWi; sec. 17, T. 31 

N., K. 6 E., 1-| 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 1948.

Average discharge.- 12 years, 1,460 second-feet.

Extremes.- Maximum discharge during year, 26,000 second-feet Oct. 19 (gage height, 24.57 

reet, from rating curve extended above 16,000 second-feet; minimum, 230 second-feet 

Oct. 1 (gage height, 10.90 feet).

1936-48: 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 for periods of no gage-height record, which are poor. 

Wo diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

251 

5,380 

6,710 

3,600 

1,720

1,120 849' 

8S2 

1,320 

1,250

976 

765 

818 

831 

3,040

5,350 

5,030 

5,330 

13,300 

3,880

2,680 

2,030 

2,720 

2,200 

1,760

2,520 

1 , 500 

1,600 

1,450

2,003 

3,000

Nov.

4,200 

2,700 

2,200 

1,800 

1,650

2 , 500 

6,000 

7,000 

4,000 

4,500

4,500 

2,500 

3,200 

2,500 

2,100

1,700 

3 , 300 

3,500 

2 , 900 

2,300

1,800 

1,300 

1,000 

900 

1,400

4,800 

2,600 

1,900 

1,600 

1,500

Dec.

2,500 

1,800 

3,000 

1,800 

1,500

1,300 

1,100 

950 

1,100 

900

950 

900 

6,200 

3,800 

3,500

3,300 

9,000 

7,000 

4,500 

2,700

2,400 

2,500 

3,700 

6,400 

4,200

2 , 300 

2,900 

3,700 

2,800 

2,100 

3 , 000

Jan

4 

4 

3

3 

2

3 

3

2 

2 

2

2

1 

1 

1 

1

1

I 

1

2 

2 

1

1 

1,

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber . . ...................

lendar year 194 

ary

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

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

ter year 1947-48 ..........

Peak discharge (base, 12,600

Note.- No gage-height record

,100 

,500 

,500 

,000 

,500

,500

,000

,500 

,200 

,000

,200 

,900

700 

500

300

200 

100 

000 

900 

825

813 

988

290 

260 

490

200

o;o

927 

868 

843 

771

Feb.

735 

675 

643 

643 

586

542

576

1,000 

900 

750

600 

560 

540

700 

2,100

1,300 

5,100

4,000 

3,000 

1,600

2,800 

5,500 

3,000 

1,880 

2,580

6,580 

3,370 

2,260 

1,760

Secondfoot-days

85,912 

83,850 

93,800

670,722

57 , 905 

56,280 

37,731 

57,230 

91,500 

67,460 

25,548 

25,050 

37,973

720,239

sec. -ft.) .-

3ct. 27 to J

Mar.

1.540 

1,390 

1,160 

1,060 

998

934

962

934 

874 

807

771 

741 

795 

789 

741

713 

891 

795 

753 

713

2,470 

4,710 

1,880 

1,390 

1,250

1,120 

1,070 

1,340 

1,600 

1,440 

1,300

Maximum

13,300 

7,000 

9,000

13,300

4,500 

6,580 

4,710 

4,200 

6,530 

3,530 

1,520 

1,940 

3,410

13,300

Apr.

1,490 

1,300 

1,390 

1,130 

1,010

955 

1,010 

955 

1,010 

1,390

1,490 

1,300 

1,203 

1,150 

1,530

4,000 

3,060 

2,330 

2,060 

2,130

2,610 

3,060 

4,200 

4,120 

3,450

2,260

1,700 

1,440 

1,340 

1,160

May

1,110 

1,040 

1,800 

2,760 

2,560

6,530 

3,840 

2,540 

2,130 

1,820

1,650 

1,650 

2,980 

3,700 

2,540

2,470 

2,830 

2,470

2,000 

2,260

3,370 

3,130 

2,400 

2,760 

3,860

4,200 

4,380 

5,380 

4,830 

3,450 

3,030

Minimum

251 

930 

9T;0

201

771 

540 

691 

955 

1,040 

1,300 

479 

389 

392

251

June

2,980 

2,900 

3,210 

2,540 

2,470

2,980 

3,530 

3,290

3,130 

2,900

2,610 

2,200 

1,940 

1,700 

1,540

1,860 

2,760 

1,820 

1,700 

1,940

3,530 

2,330 

1,700 

1 , 490 

1,390

1,300 

1,300 

1,490 

1,540 

1,390

Mean

2,771 

2,795 

3,026

1,838

1,868 

1,941 

1,217 

1,908 

2,952 

2,249 

824 

808 

1,266

1,968

July

1,120 

927 

888 

927 

343

1,090 

1,440 

1,140

900 

888

325 

789 

753 

735 

753

783 

783 

777 

696 

654

622 

622 

586 

547 

492

479 

1,520 

983

741 

638 

607

Per 

square 

mile

13.9

14.0 

15.2

9.24

9.39 

9.75 

6.12 

9.59 

14.8 

11.3 

4.14

6.35

9.89

Aug.

596 

557 

524 

596 

627

602 

501 

457 

440 

420

400 

389 

392 

514 

533

718 

514 

462 

523 

586

1,750 

1,590 

920 

1,050 

1,600

1,340

1,250 

1,940 

1,200 

1,120 

934

Sept.

759 

675 

1,620 

1,340 

927

765 

659 

591 

542 

506

470 

449 

424 

392

1,850

2,620 

1,090 

783 

659

571

571 

3,410 

2,610 

1,940

850

2,000 

2,600 

3,060 

1,940 

1,300 

1,300

Runoff

Inches

16.06 

15.67 

17.53

125.36

10.82 

10.52 

7.05 

10.70 

17.10 

12.61 

4.77 

4.63 

7.10

134.61

Acre-feet

170,400 

166,300 

186,000

1,330,000

114,900 

111,600 

74,840 

113,500 

181,500 

133,800 

50,670 

49,690 

75,320

1,429,000

Dct. 19 (3 a.m.) 26,000 sec. -ft. 

an, 19, Feb. 8-23, Sept. 25-27; discharge computed on

basis of 1 discharge measurement, recorded range In stage, anl records for Soutl- Fork Stlllaguamlsh 

River near Granite i?alls and Jim Creek near Arlington.
STILLAGUAMISH RIVER BASIN 153

Jim Creek near Oso, Wash.

Location.- Water-stage recorder, lat. 48°12', long. 121°55', in NE^ sec. 4, T. 31 N., R. 

Y K., \\ miles upstream from Cub Creek and 4| miles south of Oso.

Drainage area.- 8.0 square miles.

Records available.- September 1947 to September 1948.

Extremes.- Maximum discharge during period not determined, occurred sometime during perioc 

or no gage-height record in October; minimum, 6.5 second-feet Sept. 30, Oct. 1, 1947 

(gage height, 0.94 foot).

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

control, which are fair. No diversion or regulation.

Discharge, In second-feet, 1947-48 

1947

Day

Sept. 10

12 

13 

14 

15 

16

Discharge

56 

34 

25 

20 

17 

16 

25

Day

Sept. 17 

18 

19 

20 

21 

22 

23

Discharge

21 

14 

12 

11 

lo

9 

9

Day

Sept. 24 

25 

26 

27 

28 

29 

30

Discharge

8 

8 

8 

8 

8 

7 

7

Day

1

2

3

4

5

6

7

8

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

237

190

122

41

24

18

24

79

36

24

19

49

h38

h91

h!57

hi 20

a200

a750

a200

a!30

alOO

allS

a90

a80

allS

a75

a8o

a70

g!18

g!5l

Nov.

g403

g!28

g97

g85

g8o

g253

g578

g348

g!51

g361

g!90

g!22

g230

glo8

g83

g77

g308

205

91

70

56

50

43

40

197

155

76

57

49

83

-

Dec.

108

72

146

73

52

43

37

35

35

31

32

45

299

103

188

240

420

278

116

110

154

142

398

276

116

82

242

166

89

70

225

Jan.

360

224

108

alOO

a90

227

176

108

allS

a!2o

a!25

allO

a95

a85

a80

a70

a 65

a60

a55

a50

51

73

233

132

61

46

39

35

33

30

26

Feb.

24

20

20

20

17

15

19

20

18

14

14

13

12

32

67

40

360

170

65

46

99

243

83

64

230

416

114

73

57

_

-

Mar.

51

44

38

36

36

32

32

28

26

24

22

24

26

24

22

20

19

20

18

18

21Z

178

68

54

48

43

52

70

73

61

57

Apr.

57

51

48

39

37

34

34

35

45

52

50

42

44

51

111

199

118

97

89

1Z4

139

187

320

249

133

82

67

62

57

50

Hay

48

48

196

133

258

382

141

101

85

77

75

117

267

211

122

139

174

128

96

149

182

131

110

151

202

198

188

308

Z56

133

1Z9

June

118

130

114

89

100

124

121

107

1OO

77

91

63

67

53

48

114

1O6

65

54

131

253

86

63

55

50

47

43

47

44

34

-

July

23

27

23

27

23

4^

91

4T

3T

23

23

22

21

20

18

18

17

15

15

17

15

13

11

10

8

?7

T6

Z9

?0

15

12

Aug.

11

10

10

18

15

15

12

11

14

16

12

13

15

19

16

20

15

14

20

31

128

76

46

68

101

65

103

67

50

5Z

37

Sept.

32

88

56

39

32

28

24

22

20

19

18

16

15

71

154

38

25

21

18

17

99

118

64

43

32

97

93

180

72

50

-

a No gd.ge-height record; discharge computed on basis of records for station near Arlington.

g Computed from graph based on gage readings.

h Computed from once-daily staff-gage readings.

Note.- Shifting-control method used Oct. 30 to Feb. ZZ, Aug. 10 to Sept. 30.

Monthly discharge, in second-feet, 1947-48

Month

September 10-30, 1947 ..........

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

Calendar year .........

Water year 1947-48 ..........

Secondfoot-days

333

3,553 

4,774 

4,423

-

3,182 

Z,387 

1,476 

2,703 

4,935 

2,594 

796 

1,100 

1,601

33,524

Maximum

56

750 

578 

420

-

360 

416 

212 

320 

382 

253 

91 

1Z8 

180

750

Minimum

7

10 

40 

31

-

26 

12 

18 

34 

48 

34 

8 

10 

15

8

Mean

15.9

115 

159 

143

-

103 

82.3 

47.6 

90.1 

159 

86.5 

25.7 

35.5 

53.4

91.6

Per

mile

1.99

14.4 

19.9 

17.9

-

12.9 

10.3 

5.95 

11.3 

19.9 

10.8 

3.21 

4.44 

6.68

11.4

Runoff

Inches

1.55

16.52 

2Z.19 

20.56

-

14.79 

11.10 

6.86 

12.57 

22.94 

12.06 

3.70 

5.11 

7.44

155.84

Ac re- feet

660

7,050 

9,470 

8,770

~

6,310 

4,730 

2,930 

5,360 

9,790 

5,150 

1,580 

2,180 

3,180

66,500
154 STILLAGUAMISH RIVER BASIN

Jim Creek near Arlington, Wash.

Location.- Water-stage recorder, lat. 48°10'30", long. 122°03'55", in SE^NWi sec. 17, T.

 ai M., R. 6 E., 1 mile upstream from mouth and 3 miles southeast of Arlington.

Drainage area.- 48.9 square miles.

Records available.- October 193?" to September 1948.

Average discharge.- 11 years, 192 second-feet.

Extremes.- Maximum discharge during year, 2,960 second-feet Oct. 19 (gage height, 7.76

 feet), from rating curve extended above 1,900 second-feet; minimum, 23 second-feet 

Oct. 1.

1937-48: Maximum discharge, 4,060 second-feet probably Oct. 25, 1945 (gage height, 

9.2 feet, from high-water mark in gage well), from rating curve extended above 1,900 

second-feet; minimum, 5.9 second-feet Sept. 16, 1943.

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

No diversion or reflation.

Revisions (water years).- W 1042: 1938-44. W 1092: 1946.

Rating table, water year 1947-48, except periods of shifting control 

(gage height, In feet, and discharge, In second-feet)

1.3 21 2.3 172 4.5 

1.4 29 2.6 244 5.0 

1.6 50 3.0 356 5.6 

1.8 78 3.5 535 

2.0 112 4.0 750

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

25 

214 

2fi5 

202 

108

78 

64 

68 

112 

98

76 

63 

80 

86 

387

618 

535 

696 

1,510 

516

326 

244 

275 

222 

190

262 

184 

190 

166 

226 

294

Nov.

661 

422 

317 

260 

244

532 

1,130 

908 

516 

728

705 

477 

556 

492 

426

344 

462 

492 

326 

275

226 

195 

172 

157 

276

412 

275 

222 

190 

197

Dec.

314 

254 

462 

353 

265

217 

195 

174 

195 

181

190 

179 

463 

353 

366

415 

923 

772 

683 

462

419 

485 

675 

818 

485

356 

485 

556 

433 

341 

375

Jan.

728 

728 

535 

496 

395

556 

469 

391 

312 

326

356 

297 

249 

229 

193

172 

164 

147 

135 

125

116 

151 

356 

350 

229

188 

164 

149 

141 

145 

129

Month ^

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apr: 

May 

June 

July 

Augu 

Sept

Wa

ber .......................

mber ......................

Feb.

120 

108 

103 

101 

92

84 

84 

122 

157 

151

129 

118 

112 

110 

214

190 

705 

640 

385 

281

265 

657 

683 

426 

532

1,300 

818 

535

369

ond-

-days

8,380 

12,595 

12,844

lendar year 1947 ......... 81,918

ary

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

9,121 

9,591 

6,494 

8,561 

11,095 

5,575 

2,331 

2,184 

3,328

ter year 1947-48 .......... 92,099

Mar.

'332 

303 

262 

232 

209

190 

186 

181 

166 

149

139 

131 

129 

122 

114

108 

103 

120 

120 

118

247 

720 

372 

284 

249

222 

200 

202 

212 

193 

179

Maximum

1.51C 

1,13C 

923

1.51C

728 

1,300 

720 

556 

1,010 

521 

202 

186 

330

1,510

Apr.

190 

197 

262 

244 

232

226 

244 

232 

229 

278

297 

262 

260 

209 

226

350 

294 

247 

219 

212

249 

252 

446 

556 

556

447 

353 

292 

281 

219

980 

1,230 

1,540

1947 to September

May

1

Minimum

25 

157 

174

17

116 

84 

103 

190 

184 

88 

37 

30 

41

25

Peak discharge (base, 1,400 sec. -ft.).- Oct. 15 (10:30 p.m.)

197 

184 

303 

436 

378

,010 

652 

462 

353 

294

257 

249 

419 

492 

402

338 

344 

314 

265 

267

289 

254 

224 

254 

275

281 

275 

447 

492 

391 

297

June

260 

232 

232 

190 

168

177 

184 

174 

153 

143

133 

141 

112 

112 

88

100 

239 

190 

155 

171

521 

388 

273 

212 

177

157 

141 

127 

118 

107

Mean

270 

420 

414

224

294 

331 

209 

285 

358 

186 

75.2 

70.5 

111

252

1948

July

91 

8C 

75 

7C 

69

84 

141

202 

145 

114

94 

83 

76 

7C 

63

59 

56 

54 

53 

53

53 

49 

45

41 

38

37 

121 

74 

54 

46 

41

Per 

square 

mile

5.52 

8.59 

8.47

4.58

6.01 

6.77 

4.27 

5.83 

7.32 

3.80 

1.54 

1.44 

2.27

5.15

1,510 sec. -ft. ; 0

Aug.

38 

36 

36 

46 

45

48 

40 

37 

36 

33

32 

31 

30 

40 

38

46 

37 

33 

40 

42

139 

129 

75 

108 

163

130 

149 

186 

114 

128 

99

Sept.

81 

88 

164 

108 

86

75 

68 

62 

56 

54

49 

48 

43 

41 

227

120 

74 

60 

54 

49

55

247 

141 

107 

84

153 

209 

330 

238 

157

Runoff

Inches

6.37 

9.58 

9.77

62.30

6.94 

7.29 

4.94 

6.51 

8.44 

4.24 

1.77 

1.66 

2.53

70.04

Acre-feet

16,620 

24,980 

25,480

162,500

18,090 

19,020 

12,880 

16,980 

22,010 

11,060 

4,620 

4,330 

6,600

182,700,

:t. 19 (2:30 a.m. )

2,960 sec.-ft.; Feb. 26 (11 a.m.) 1,900 sec.-ft.

Note.- Shifting-control method used May 30 to June 20, Sept. 26-30.
STILLAGUAMISH RIVER BASIN

North Pork Stillaguamish River near Arlington, Wash.

Location.- Water-stage recorder, lat. 48°15'45", long. 122°02'45", in SE^NW^ sec. 16, T. 

yd N., R. 6 E., 6 miles northeast of Arlington, 7 miles upstream from mouf-i, 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 1948.

Average discharge.- 20 years, 1,681 second-feet.

Extremes.- Maximum discharge during year, 21,000 second-feet Oct. 19 (gage height, 11.46 

reet); minimum, 325 second-feet Oct. 1 (gage height, 1.60 feet).

1928-48: Maximum discharge, 27,700 second-feet Feb. 26, 1932 (gage height, 12.7 

feet): minimum, 88 second-feet Sept. 23, 1938.

Remarks.- Records good except those for periods of shifting control, which ar<s fair. 

Wo Known diversion or regulation.

Revisions,.- W 832: Drainage area.

Rating table, water year 1947-48, except period of shifting control 

(gage height, In feet, and discharge, In second-feet)

1.6 325 4.0 1,770 8.0 8,000 

2.0 495 4,5 2,200 9.0 11,000 

2.5 755 5.0 2,700 10.0 14,500 

3.0 1,060 6.0 3,890 

3.5 1,390 7.0 5,600

Discharge, in second-feet, water year October 1947 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.

333 

4,030 

5,380 

3,480 

1,850

1,280 

1,020 

990 

1,280 

1,250

1,060 

870 

900 

930 

4,000

6,720 

5,160 

6,210 

13,700 

4,880

3,030 

2,290 

2,490 

2,160 

1,850

2,390 

1,770 

1,770 

1,650 

2,220 

2,710

Nov.

5,160 

3,150 

2,590 

2,160 

2,020

2,940 

5,820 

7,790 

4,120 

4,520

4,520 

3,030 

3,390 

2,810 

2,390

2,020 

3,080 

3,510 

2,490 

2,060

1,810 

1,610 

1,460 

1,320 

1,630

2,810 

2,020 

1,730 

1,570 

1,530

Dec.

1,980 

1,650 

2,200 

1,850 

1,530

1,360 

1,250 

1,150 

1,250 

1,120

1,180 

1,150 

2,980 

3,260 

3,030

3,180 

9,470 

6,740 

5,060 

3,150

2,760 

3,630 

4,480 

8,480 

4,770

3,390 

4,350 

4,460 

3,460 

2,540 

2,940

Jan.

6 

6 

3 

3 

2

3 

3 

3 

2 

2

2

1 

1 

1 

1

1 

1

1 

1

1

1 

1 

2 

2 

1

1

1 

1 

1

1

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

ffa

lendar year 1947 .........

dry

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

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

ter year 1947-48 ..........

Peak discharge (base, 11,500

,140 

,180 

,890 

,390 

,590

,460 

,270 

,150 

,440 

,440

,390 

,930 

,690 

,610 

,500

,390 

,280 

,250 

,180 

,120

,090 

,250 

,720 

,290 

,690

,420 

,250 

,150 

,120 

,060 

990

Feb.

930 

870 

840 

810 

755

689 

662 

840 

870 

782

594 

884 

684 

728 

1,500

1,320 

3,920 

4,180 

2,440

1,770

1,770 

4,930 

3,470 

2,390 

2,590

5,880 

4,120 

2,760 

2,160

Secondfoot-days

89,653 

87,060 

99,800

743,993

68,320 

56,038 

45,360 

57,970 

104,040 

70,400 

25,905 

25,637 

35,732

765,915

Mar.

2,110 

1,930 

1,650 

1,500 

1,390

1,320 

1,360 

1,320 

1,220 

1,120

1,060 

1,020 

1,060 

1,020 

960

930 

900 

1,020 

990 

930

1,990 

4,600 

2,110 

1,610 

1,460

1,360 

1,280 

1,460 

1,650 

1,570 

1,460

Maximum

13,700 

7,790 

9,470

17,800

6,180 

5,880 

4,600 

4,450 

7,740 

3,760 

1,320 

1,650 

3,010

13,700

Apr.

1,420 

1,390 

1,500 

1,280 

1,180

1,120 

1,180 

1,120 

1,180 

1,360

1,280 

1,150 

1,150 

1,120 

1,360

3,020 

2,640 

2,240 

2,020 

2,060

2,590 

2,810 

3,900 

4,450 

3,630

2,640 

2,110 

1,850 

1,690 

1,530

May

1,420 

1,360 

2,140 

2,590 

2,610

7,740 

4,590 

3,030 

2,490 

2,200

1,980 

2,020 

3,650 

4,160 

3,150

2,760 

3,270 

2,760 

2,340 

2,640

3,630 

3,630 

2,760 

3,030 

4,160

4,780 

4,780 

6,260 

4,960 

3,760 

3,390

June

3,270 

3,270 

3,510 

2,920 

2,920

3,270 

3,760 

3,630 

3,390 

3,030

2,700 

2,290 

2,110 

1,930 

1,730

2,000 

2,590 

1,930 

1,770 

1,930

2,700 

2,110 

1,730 

1,530 

1,460

1,360 

1,320 

1,420 

1,460 

1,360

Minimum Mean

333 2,892 

1,320 2,902 

1,120 3,219

294 2,038

990 2,204 

662 1,932 

900 1,463 

1,120 1,932 

1,360 3,356 

1,320 2,347 

560 836 

495 827 

520 1,191

333 2,093

sec. -ft.).- Oct. 15 (10:30 p.m.) 11,900 at

1948

July

1,150 

1,020 

960 

990 

930

1,060 

1,320 

1,120 

930 

870

840 

810 

755 

728 

728

755 

755 

755 

782

728

689 

667 

645 

615 

575

560 

1,130 

960 

755 

678 

645

Per 

square 

mile

10.8 

10.8 

12.0

7.58

8.19 

7.18 

5.44 

7.18 

12.5 

8.72 

3.11 

3.07 

4.43

7.78

sc.-ft. ;

Aug.

635 

615 

595 

667 

640

625 

575 

540 

525 

520

505 

500 

495 

545 

530

595 

520 

505 

535 

550

1,360 

1,360 

900 

1,330 

1,610

1,220 

1,530 

1,650 

1,150 

1,250 

1,060

Sept.

870 

890 

1,810 

1,250 

990

840 

755 

694 

645

615

590 

560 

540 

520 

2,370

1,710 

1,060 

840 

755 

684

914 

3,010 

1,850 

1,360 

1,090

1,320 

1,570 

2,260 

1,980 

1,390

Runoff

Inches

12.39 

12.04 

13.80

102.86

9.45 

7.75 

6.27 

8.01 

14.38 

9.73 

3.58 

3.54 

4.94

105-88

Oct. 19

Acre-feet

177,800 

172,700 

198,000

1,476,000

135,500 

111,100 

89,970 

115,000 

206,400 

139,600 

51,380 

50,850 

70,870

1,519,000

(6 a.m.)

Note.- Shifting-control method used Mar. 22 to Hay 13.
156 SKAGIT RIVER BASIN

Skagit River near Hope, British Columbia 

(International gaging station)

Location.- Water-stage recorder, Jat. 49°03', long. 121°05', just downstream from Galena 

Ureek, 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 1948 in reports of Geological Survey. 

March 1915 to September 1922 in bulletins of Canadian Department of Resources and 

Development.

Average discharge.- 14 years (1934-48), 844 second-feet.

Extremes. - Maximum discharge during year, 9,720 second-feet May 28 (gage I-eight, 10.75 

feet); minimum, 195 second-feet Oct. 1 (gage height, 2.71 feet).

1915-22, 1934-48: Maximum discharge, that of May 28, 1948; 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 or the international gaging stations maintained by Canada under agreement with 

the United States.

Discharge, in second-feet, water year October 1947 to September 1918

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

199

288

446

610

491

410

358

330

320

309

284

274

278

284

292

382

500

620

840

1,080

838

705

625

565

555

820

850

790

732

700

744

Nov.

970

964

880

802

749

700

683

738

716

683

650

615

605

575

550

525

505

486

464

442

424

428

432

437

432

425

415

410

400

395

-

Dec.

390

380

380

380

380

380

385

387

393

402

412

422

432

SZB

473

450

491

580

620

580

550

520

580

814

814

790

814

910

886

826

778

Jan.

760

749

705

672

625

610

590

580

540

515

486

455

419

419

410

390

390

390

390

378

378

378

378

390

374

342

320

330

330

342

332

Month

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

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

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

Calendar year 1947 .........

January .. v ...................

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

Maroh .........................

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

321

310

300

306

278

236

238

239

241

242

225

236

250

260

270

286

300

312

326

309

295

295

284

278

274

284

278

270

264

_

-

Secondfoot-days

16,519

17,500

17,124

360,462

14,367

8,007

7,559

26,095

104,706

152,720

34,419

20,174

13,171

432,361

Mar.

260 '253

250

250

242

239

239

236

232

225

228

225

225

222

215

215

212

218

208

212

232

267

256

253

250

242

242

260

302

323

326

Maximum

1,080

970

910

5,390

760

326

326

1,970

9,430

8,060

2,060

878

695

9,430

Apr.

330

330

334

330

323

320

312

312

323

342

350

350

346

358

437

838

1,200

1,270

1,340

1,430

1,730

1,970

1,920

1,770

1,590

1,420

1,250

1,140

1,110

1,020

-

May

940

870

822

846

846

982

1,270

1,310

1,460

1,570

1,650

1,680

1,740

1,720

1,650

1,630

1,860

2,000

1,970

2,390

3,720

4,980

5,170

5,780

6,710

7,830

8,910

9,430

8,550

7,290

7,130

Minimum

199

395

380

199

320

225

208

312

822

2,320

639

445

322

199

June

6,970

6,800

6,630

6,460

6,290

6,750

7,610

8,020

7,740

8,060

6,960

6,440

5,940

5,710

5,460

5,100

5,080

4,490

4,100

3,860

3,860

3,500

3,110

2,920

2,760

2,560

2,400

2,400

2,420

2,320

-

Mean

533

583

552

988

463

276

244

870

3,380

5,090

1,110

651

439

1,180

July

2,06")

1,82")

1,650

1,570

1,490

1,430

1,450

1,460

1,300

1,240

1,200

1,130

1,070

1,010

990

96S

95<3

1,010

1,140

1,030

93*

873

849

823

744

723

759

751

683

653

630

Per 

square 

mile

1.44

1.58

1.49

2.67

1.25

.75

.66

2.35

9.14

13.76

3.00

1.76

1.19

3.19

Aug.

667

6

5

7

25

90

51

716

604

5

5

4

42

00

82

470

460

4

4

5

45

45

72

578

646

5

7

7

66

30

09

695

744

8

8

8

78

21

56

856

814

7

7

6

6

79

16

46

32

639

Sept.

578

542

695

674

590

542

500

470

450

430

412

400

384

368

392

380

368

352

334

322

331

424

421

393

371

356

362

412

474

444

-

Runoff

Inches

1.66

1.76

1.72

36.21

1.44

.81

.76

2.62

10.54

15.36

3.46

2.03

1.33

43.49

Acre-feet

32,760

34,710

33,960

714,900

28,500

15,880

14,990

51,760

207,700

302,900

68,270

40,010

26,120

857,600

Note.- Ho gage-height record Oct. 17-19, Nov. 26 to Dec. 12, Jan. 31 to Feb. 3, Feb. 7-9, 13-17, 

May 31 to June 4; discharge computed on basis of records for station at Newhalem.
SKAGIT RIVER BASIN 157

Ross Reservoir near Newhalem Wash.

Location.- Water-stage recorder, lat. 48"44',,long. 121°05', in SE£ sec. 35, T. 38 N., R. 

13 E. at Ross Dam on Skagit River about 1 mile downstream from Ruby Creek, 9 miles 

northeast of Newhalem. Datum of gage is at mean sea level (city of Seattle bench mark). 

Prior to Apr. 30, 1948, staff gage at same site and datum.

Records available.- October 1946 to September 1948. 

194U to September 1946.

Monthly elevations and contents March

Extremes.- Maximum contents during year, 1,004,600 acre-feet July 1 (elevation, 1,562.52 

reet); minimum observed, 5,520 acre-feet Mar. 30 (elevation, 1,286.90 feet). 

1940-48: Maximum contents, that of July 1, 1948.

Remarks.- Reservoir is formed'by concrete dam completed to elevation 1,582 feet in 1948; 

storage began Mar. 11, 1940. Capacity, 1,202,920 acre-feet between elevations 1,250 

feet (lowest outlet) and 1,582 feet (overflow). Dead storage negligible. Water used 

to supplement low flow of Skagit River through city of Seattle's Diablo and Newhalem 

power plants. Gage-height record collected in cooperation with city of Seattle. 

Figures given herein represent total contents.

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)

1,300

1,320

1,340

1,360

1,380

9,740

21,440

41,090

68,290

103,810

1,400

1,420

1,440

1,460

1,480

144,940

193,900

252,640

321,210

405,230

1,500 509,240

1,520 641,230

1,540 800,920

1,560 980,600

Elevation at 8 a.m., In feet, water year October 1947 to September 1948

Day

1

2

3

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.

492.56

492.68

493.64

494.80

495.30

495.36

494.46

493.54

492.86

492.08

491.20

490.20

489.55

488.50

487.46

486.90

486.26

485.90

487.10

488.38

488.36

487.90

486.78

485.64

483.88

482.32

480.82

479.36

477.80

476.18

475.36

NOT.

475.02

475.20

474.68

474.18

473.60

472.90

472.20

472.18

471.95

471.48

470.98

470.92

470.20

469.84

469.20

469.24

468.68

467.92

467 . 28

466.50

465.64

465.28

464.58

464.20

463.04

461.76

461.08

460.98

460.66

460.48

-

Dec.

460.14

458.80

457.94

456.72

455.44

454.16

453.20

452.08

450.58

448.92

447.12

445.22

443.44

440.75

437.96

435.90

434.20

432.88

430.76

429.56

428.28

426.90

424.10

421.34

421.52

421.78

419.40

417.62

415.46

414.72

413.10

Jan.

412.26

411.72

410.56

409.28

407.96

406 . 34

404.60

402.90

401.22

399.34

397.46

395.30

393.20

390.80

388.43

386.30

383.60

380.80

37 8. -50

375.92

373.30

370.68

368.06

365.40

362.65

359.70

356.70

353.50

350.43

347 . 62

343.40

Feb.

340.20

337.76

333.50

329.26

324.92

320.48

317.93

316.90

317.90

314.20

310.40

306 . 40

304.10

302.60

306 . 40

306.75

305.20

301.75

300.70

301.20

298.50

295:70

294.50

294.50

294.20

293.80

293.70

293.40

292.90

_

-

Mar.

295.00

294.25

293.50

292.30

291.30

290.10

390.90

290.00

290.80

291.80

291.40

291.00

290.50

289.80

289.10

288.20

291.90

290.40

288.70

290.50

395.90

296.60

296.60

298.30

297.00

291.80

289.10

289.45

290.30

286.90

2B9-. 40

Apr.

290.00

289.90

290.10

290.55

290.22

290.10

289.65

288.76

287.96

287.90

289.50

291.60

291.52

290.90

291.00

291.00

302.32

310.60

318.40

322.30

326.10

330.50

335.48

340.00

344.68

348.40

349.86

350.20

350.04

349.60

-

Hay

348.86

348.85

348.08

347 . 18

346.70

345.94

347.36

350.00

351.37

357.65

359.96

363.91

366.81

370.14

373.27

375.93

378.66

382.15

385.81

388.00

394.10

402.88

413.14

422.72

432.30

442.94

454.08

465.48

476.90

485.72

491.96

June

496.90

501.40

506.27

511.00

515.43

520.47

525.86

531.66

536.75

541.87

545.97

549.07

551.52

553.37

555.65

555. S5

556.87

557.68

558.51

558.92

559.28

559.69

559.93

560.32

560.23

560.12

560.26

561.08

561.56

562.20

-

July

562.50

562.16

561.41

560.58

559.65

558.68

557.79

557.15

556.41

555.81

556.11

556.34

555.87

555.39

555.43

555.35

555.58

555.15

554.85

555.05

555.08

555.05

555.11

555.08

555.29

555.05

554.85

554.77

554.07

553.54

553.00

Aug.

551.96

551.02

550.53

550.10

550.22

550.02

549.95

550.04

550.06

550.02

£50.02

£49.51

£49.46

£49.52

£49.60

£49.92

549.80

549.69

549.59

549.60

549.57

549.55

549.32

549.25

549.28

549.10

548.96

549.01

549.21

549.60

549.53

Sept.

549.30

549.06

549.10

549.06

549.13

549.10

549.05

548.73

548.38

548.05

547.73

547 . 84

547 . 90

547.52

547.07

547.16

546.75

546.70

546.74

546.53

546.10

545.68

545.27

544.97

544.50

544.48

544.28

543.88

543.70

543.40

-

Mote.- Add 1,000 feet to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1947 to September 1948

Date

Dec. 31.............. ......

Calendar year 1947 .......

Elevation 

(feet)t

1,412.7

-

Contents 

(acre-feet)t

174,780

-

909 900

Change In contents 

during month 

(acre-feet)

-147,600

-7,420

t Elevation and contents at 12 p.m., based on 2 dally observations Sept. 

30 to Apr. 29. and recorded elevation Apr. 30 to Sept. 30.
158 SKAGIT RIVER BASIN

Skagit River at Hewhalem, Wash,.

Location.- Water-stage recorder, lat. 48°40', long. 121°15', in SE^- sec. 21, T. 37 N., R.

la 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 Canada. 

Kecoras available.- December 1908 to May 1914 and October 1920 to September 1948 In reports or Geological Survey. October 1908 to September 1933 (monthly discharge only)

in State Water-Supply Bulletin 5. 

Average discharge.- 40 years, 4,267 second-feet (adjusted for storage in Diablo Reservoir

since October 1929 and Ross Reservoir since March 1940). 

Extremes.- Maximum discharge during year, 15,100 second-feet June 15 (gage height, 87.53

feet); minimum, 640 second-feet Feb. 8, Mar. 14 (gage height, 80.00 feet); minimum

daily, 758 second-feet Mar. 14.

1908-14, 1920-48: 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. Flow partly regulated by Diablo and Ress

Reservoirs (see p. 162), having a combined capacity of 1,279,000 acre-feet. 

Cooperation.- Gage-height record collected in cooperation with city of Seattle. 

Hevlslons (water years).- W 512: 1909-14.

Rating table, water year 1947-48 (gage height, In feet,

and discharge, In second-feet;

80.2 756 82.5 2,940 85.0 7,410 

80.7 1,120 83.0 3,610 86.0 10,000 

81.0 1,360 83.5 4,380 86.6 11,800 

81.5 1,820 84.0 5,290 

82.0 2,350 84.5 6,310

Discharge, in second-feet, water year October 1947 to September 1943

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

2,290 

4,090 

4,350 

4,140 

3,880

4,300 

4,330 

4,460 

4,490 

4,190

3,930 

3,940 

4,840 

4,710 

4,540

5,120 

5,200 

5,490 

7,000 

5,950

4,750 

5,550 

6,260 

7,130 

7,750

8,080 

8,080 

5,480 

6,400 

6,240 

4,730

Nov.

4,240 

5,130 

4,190 

4,230 

4,330

4,290 

3,960 

3,590 

2,610 

3,750

2,680 

3,640 

3,470 

3,690 

2,680

2,360 

3,590 

3,410 

3,510 

3,410

3,230 

2,530 

2,320 

3,690 

4,060

4,370 

2,240 

2,800 

2,570 

2,430

Month

Octo 

Hove 

Dece

Cal

Janu 

Pebr 

Marc 

Apri

Mav

June 

July 

Augu 

Sept

Wat

ber... ..........

mber ............

endar year 1947

St..............

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

er year 1947-48

Dec.

3,870 

4,020 

3,830 

4,120 

4,200

3,470 

3,260 

4,210 

4,270 

4,480

4,740 

4,820 

5,950 

6,480 

5,990

5,740

4,990 

6,240 

6,030 

4,350

4,620 

5,930 

7,680 

6,370 

3,400

5,690 

7,510 

7,660 

6,500 

5,060 

5,800

Jan.

4,300 

4,540 

5,020 

4,240 

5,060

4,570 

4,800 

4,580 

4,580 

4,770

4,210 

4,740 

4,280 

4,640 

4,290

4,350 

3,9OO 

3,960 

5,010 

4,280

4,260 

4,000 

3,630 

3,830 

3,640

4,850 

3,780 

4,020 

4,130 

3,980 

3,590

Feb.

2,360 

3,520 

3,560 

3,090 

3,080

2,250 

1,680 

844 

2,290 

2,300

2,220 

2,040 

1,340 

895 

783

1,700 

2,370 

2,630 

1,970 

2,500

2,570 

1,790 

1,690 

1,870 

1,770

1,760 

1,850 

1,260 

929

Mar.

1,750 

1,620

i.e^o

1,670 

1,680

1,060 

876 

1,590 

1,440 

1,180

1,080 

1.010 

960 

758 

1,380

1,250 

1,280 

1,290 

1,220 

916

988 

2,010 

1,670 

1,530 

1,970

1,960 

1,490 

878 

1,990 

1,630 

1,770

Observed

Discharge in 

second-feet

Maximum

8,080 

5,130 

7,680

11,200

5,060 

3,560 

2,010 

4,560 

9,610 

11,900 

10,700 

9,610 

4,750

11,900

Minimum

2,290 ,_,;4o

3,260

1,230

3,590 

783 

758 

1,330 

2,450 

4,030 

3,850 

2,540 

2,390

758

Mean

5,216 

3,433 

5,203

4,449

4,317 

2,031 

1,404 

2,731 

4,389 

8,613 

7,194 

4,441 

3,628

4,394

Runoff 

in 

acre-feet

320,700 

204,300 

319,900

3,221,000

265,400 

116,800 

86,310 

162,500 

269,900 

512,500 

442,400 

273,100 

215,900

3,190,000

Apr.

1,830 

1,920 

1,720 

1,680 

1,760

1,910 

1,610 

1,480 

1,580 

1,440

1,330 

1,780 

1,770 

1,780 

1,900

2,970 

2,550 

2,150 

3,870 

4,500

4,500 

4,560 

4,290 

3,690 

3,240

4,530 

3,940 

3,960 

3,730 

3,960

May

3,350 

3,530 

4,370 

4,580 

4,260

3,560 

3,490 

2,670 

2,450 

3,280

2,950 

3,570 

3,870 

3,310 

3,250

3,080 

3,740 

3,730 

3,880 

3,570

3,960 

3,390 

2,860 

3,780 

4,220

5,570 

9,320 

9,610 

8,630 

7,320 

6,910

Change In

Ross and 

Diablo 

Reservoirs 

(acre-feet)

-85,470 

-59,950 

-148,400

-4,750

-133,100 

-33,020 

-2,170 

+45,790 

+429,000 

+521,900 

-92,890 

-27,040 

-55,050

+359,600

June

5,520 

6,680 

4,400 

4,410 

4,760

4,030 

5,300 

6,140 

6,850 

7,780

10,100 

9,300 

9,380 

10,600 

11,900

10,800 

11,500 

10,100 

11,800 

11,400

11,700 

10,700 

9,440 

10,600 

10,700

10,800 

5,990 

8,490 

8,840 

8,370

July

8,480 

10^.100 

10,700 

10,600 

10,400

10,700 

10,200 

8,650 

8,750 

5,320

4,220 

7,340 

7,560 

5,800 

5,540

5,580 

6,870 

8,910 

5,610 

5,640

5,360 

5,230 

5,940 

4,830 

3,850

5,440 

5,530 

6,090 

7,920 

6,870 

8,990

Aug.

9,610 

7..790 

7,290 

6,430 

4,810

4,000 

3,390 

2,840 

3,900 

4,260

4,300 

4,290 

3,710 

2,800 

2,540

3,690 

3,730 

4,350 

4,310 

3,910

4,440 

4,420 

4,690 

4,560 

4,480

4,660 

4,530 

3,290 

2,700 

4,240 

3,710

Sept.

3,960 

4,430 

4,000 

3,020 

2,730

2,580 

4,200 

4,370 

3,890 

3,810

2,620 

2,390 

3,930 

4,180 

3,100

3,430 

2,730 

2,920 

2,860 

4,160

4,730 

4,750 

4,510 

4,630 

2,640

2,920 

4,200 

3,930 

3,720 

3,490

Adjusted fo~ change In 

reservoir contents

Runoff 

in 

acre-feet

235,200 

144,400 

171,500

3,216,000

132,300 

83,780 

84,140 

208,300 

698,900 

1,034,000 

349,500 

246,100 

160,800

3,549,000

Discharge in 

seoo id-feet

Per 

Mean square 

mile

3,825 3.30 

2,427 2.09 

2,789 2.40

4,442 3.83

2,152 1.86 

1,457 1.26 

1,368 1.18 

3 , 50- 3 . 02 

11,370 9.80 

17,380 15.0 

5,684 4.90 

4,002 3.45 

2,702 2.33

4,889 4.21

Runoff

inches

3.80 

2.33 

2.77

51.97

2.14 

1.35 

1.36 

3.37 

11.30 

16.71 

5.65 

3.98 

2.60

57.36
SKAGIT RIVER BASIN 16! 

Skagic River at Marblemount, Wash.

Location.- Water-stage recorder, lat. 48°32'10", long. 121°25'50", in NWir sei. 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 1948.

Extremes.- Maximum discharge during year, 35,400 second-feet Oct. 19 (gage height, 8.52

 feet), from rating curve extended above 15,000 second-feet; minimum, 1,310 second-feet 

Feb. 14 (gage height, 1.17 feet); minimum daily, 1,490 second-feet Feb. 15.

1943-44, 1946-48: Maximum discharge, that of Oct. 19, 1947; minimum, 620 secondfeet Mar. 6, 1944 (gpge height, 0.55 foot); minimum daily, 1,190 second-fset Feb. 25, 

1944.

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

fair. All diversions returned to river above gage. Flow partly regulatel by power 

plants on upper Skagit River, and by Ross and Diablo Reservoirs (see p. 162).

Rating table, water year 1947-48, except period of shifting control 

(gage height, in feet, and discharge, in second-feet)

1.3 

1.6 

2.0 

3.5

1,490

1,960

3,700

3,850

3.0 5,180

3.5 

4.0 

4.5 

5.0

6,650

8,500

10,600

13,000

6.0 18,500

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

£6 

27 

28 

29 

30 

31

Oct.

3,860 

7,050 

7,880 

7,740 

5,700

5,350 

5,280 

5,320 

5,610 

5,140

4,670 

4,910 

5,540 

5,540 

6,880

7,780 

8,360 

9,770 

17,100 

8,900

6,820 

6,980 

7,450 

8,370 

9,450

10,400 

9,700 

6,680 

7,450 

7,760 

6,850

Nov.

7,230 

6,670 

6,110 

5,630 

5,510

5,630 

5,450 

5,580 

4,440 

5,110

4,220 

4,880 

4,840 

4,920 

3,940

3,530 

4,700 

4,580 

4,560 

4,360

4,330 

3,530 

3,380 

4,300 

5,080

5,860 

3,660 

3,900 

3,670 

a3,500

Dec.

a4,700 

a4,900 

a4,700 

4,940 

5.OOO

4,330

4,130 

4,740 

4,930 

5,060

5,300 

5,360 

7,330 

7,830 

7,170

6,950 

7,390 

8,320 

8,060 

6,000

6,090 

6,980 

10,900 

10,300 

6,050

7,630 

10,500 

10,400 

8,500 

6,680 

7,510

Jan.

6,370 

6,570 

6,610 

5,870 

6,330

5,900 

6,130 

5,860 

5,760 

5,880

5,310 

5,690 

5,140 

5,450 

5,140

5,240 

4,750 

4,800 

5,560 

5,000

4,990 

4,870 

4,420 

4,570 

4,570

5,500 

4,530 

4,660 

4,760 

4,580 

4,230

Feb.

3,340 

4,160 

4,360 

3,860 

3,640

3,040 

2,430 

1,690 

2,540 

2,920

3,860 

3,700 

3,020 

1,500 

1,490

2,08O 

3,180 

4,310 

3,300 

3,300

3,690 

3,020 

3,890 

3,890 

3,800

3,050 

3,060 

3,450 

2,010

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

2,770 

3,630 

3,530 

2,450 

3,550

1,950 

1,760 

3,360 

3,160 

1,980

1,810 

1,740 

1,640 

1,530 

3,010

1,890 

1,920 

1,930 

1,880 

1,510

1,760 

2,980 

2,680 

3,410 

2,710

3,710 

2,360 

1,950 

3,830 

3,770 

3,710

Apr.

2,880 

2,860 

2,690 

2,600 

3,680

3,750 

2,520 

2,300 

2,300 

2,310

3,200 

2,540 

2,510 

2,580 

2,860

5,090 

4,910 

4,400 

5,320 

6,470

6,910 

7,130 

6,470 

5,860 

5,140

5,690 

5,520 

5,100 

4,940 

5,040

Secondfoot-days

224,990 

143,880 

308,460

2,313,820

165,020 

84,380 

68,870 

132,560 

236,400 

386,230 

276,860 

183,690 

146,710

3,237,050

May

4,230 

4,560 

5,230 

5,680 

5,530

6,450 

5,900 

4,750 

4,450 

4,860

4,710 

5,210 

5,970 

5,480 

5,010

5,120 

5,920 

6,030 

6,030 

6,650

8,320 

7,330 

6,260 

7,570 

9,450

11,400 

14,000 

17,800 

14,000 

11,500 

11,000

Maximum

17,100 

7,230 

10,900

17,100

6,610 

4,310 

2,980 

7,120 

17,800 

16,300 

13,500 

11,300 

7,360

17,800

June

9,980 

11,300 

9,300 

8,700 

9,500

9,670 

12,500 

13,500 

13,6OO 

11,200

16,3OO 

14,000 

13,500 

14,600 

16.2OO

15,100 

15,600 

13,500 

15,600 

15,600

16,300 

14,000 

13,700 

14,000 

13,500

13,500 

8,580 

11,500 

13,500 

11,600

July

11,000

13,500 

13,500 

13,500 

13,500

13,500 

13,000 

10,500 

10,500 

7,830

6,340 

7,990 

9,150 

7,700 

5,460

6,300 

8,340 

10,800 

7,930 

7,340

7,010 

7,020 

7,150 

6,490 

4,680

6,940 

7,430 

7,200 

9,380 

7,900 

10,200

Minimum

2,6bO 

3,380 

4,130

3,010

4,220 

1,490 

1,510 

3,300 

4,330 

8,580 

4,680 

4,080 

3,340

1,490

Aug.

11,300 

9,730 

8,300 

9,840 

6,130

5,550 

4,540 

4,210 

4,870 

5,270

5,280 

5,250 

4,960 

4,080 

4,130

4,720 

4,830 

5,380 

5,410 

5,180

6,720 

6,350 

6,080 

6,270 

6,240

6,310 

6,460 

5,350 

4,340 

5,490 

5,140

Mean

7,358 

4,763 

6,725

6,065

5,323 

3,910 

3,222 

4,085 

7,303 

12,870 

8,931 

5,935 

4,890

6,113

Sept.

5,190 

5.8OO 

6,450 

4,680 

4,200

3,750 

5,140 

5,320 

4,980 

4,750

3,860 

3,340 

4,650 

5,010 

5,120

4,660 

4,080 

3,910 

3,780 

4,820

5,910 

7,360 

6,020 

5,81(5 

3,950

3,900 

5,070 

5,570 

5,080 

4,550

Runoff in 

acre-feet

446,300 

283,400 

413,500

4,391,000

327,300 

167,400 

136,600 

243,100 

449,100 

766,100 

549,100 

364,300 

291,000

4,437,000

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

station at Newhalem.

Note.- Shifting-control method used Oct. 1-2.
160 -SKAGIT RIVER BASIN

Skagit River near Concrete, Wash.

Location.- Water-stage recorder, lat. 48°3S', long. 121°46', in sec. 16, T. 35 N., R. 8 

tt., at dalles 2 miles downstream from Baker River and 2j 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 Canadr. 

Records available.- September 1924 to September 1948. 

Average discharge.- 24 years, 13,980 second-feet.

Extremes.- Maximum discharge during year, 95,200 second-feet Oct. 19 (gage height, 32.99 

feeTTT minimum, 4,320 second-feet Mar. 21 (gage height, 13.79 feet); minimum daily, 

5,350 second-feet Feb. 8, 14.

1924-48; Maximum discharge, 147,000 second-feet Feb. 27, 1932 (gage height, 40.0 

feet, present datum); 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 WaterSupply Paper 612.

Remarks.- Records excellent. All diversions returned to river above gage. Flow partly 

regulated by power plants on Baker and upper Skagit Rivers, and by Ross, Diablo, and 

Lake Shannon Reservoirs (see p. 162)

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet)

14.4 5,350

14.7 5,930

15.0 6,550

15.5 7,650

16.0 8,810

16.5 1O,OOO

17.0 11,300

17.5 1Z.700

18.0 14,200

19.0 17,500

20.0 21,200

Zl.O Z5,300

23.0 34,300

Z5.0 44,100

27.0 55,700

29.1 69,ZOO

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6,340 

14,600 

27,900 

25,300 

15,800

12, ZOO 

11,300 

10,500 

1O.80O 

10,500

9,780 

9,290 

9,780 

10,500 

15., 500

24,100 

22,800 

26 , 600 

59,000 

30,100

20,500 

17,900 

17,500 

16,500 

17,500

22,000 

18,600 

15,100 

15,100 

15,500 

16,700

Nov.

23,700 

17,100 

16,100 

14,200 

13,300

13,300 

14,800 

2O , 800 

16,500 

15,500

15,500 

14,200 

14,200 

13,900 

12,400

11,300 

12,400 

13,300 

12,200 

11,300

10,800 

9,780 

9,050 

9,530 

10,800

14,800 

12,200 

10,800 

10,800 

10,300

Dec.

11,300 

11,900 

12,400 

11,900 

11,300

10,500 

9,780 

10,300 

10.8OO 

10,500

10,500 

10,000 

12,800 

17,900 

15,100

14,800 

23,700 

24,900 

22,800 

17,500

16,100 

15,800 

24,800 

32,000 

22,000

19,300 

24,900 

28,400 

21,600 

17,500 

17,900

Jan.

20,500 

22,000 

18,6OO 

17,100 

15,500

15,800 

15,800 

15,800 

14,500 

14,200

13,600 

13,000 

12,200 

11,900 

11,300

11,300 

10,500 

9,530 

1O.80O 

10,300

10,OOO 

10,300 

10,500 

10,300 

9,780

10,500 

10,000 

9,530 

9,530 

9,530 

8,110

Feb.

7,200 

7,880 

8,340 

7,420 

7,200

6,760 

6,130 

5,350 

5,930 

6,340

6,550 

6,340 

5,730 

5,350 

5,540

6,380 

10,300 

14,200 

11,300 

9,780

10.0OO 

11,600 

10,800 

9,780 

9,530

11,900 

12,200 

10,300 

9,290

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

9,050 

9,050 

8,340 

7,880 

7,650

7,200 

6,760 

6,980 

6,980 

6,760

6,550 

6,340 

6,130 

6,130 

6,130

6,130 

6,130 

6,130 

6,130 

5,730

6,120 

11,600 

9,530 

8,340 

7,880

8,110 

7,650 

6,760 

8,110 

8,57t> 

8,340

Apr.

8,340 

8,110 

,880 

,20O 

,650

,420 

,420 

,98O 

,980 

,980

,130 

,760 

,980 

,200 

,650

13,500 

14,800 

13,000 

13,000 

14,800

16,800 

18,600 

17,900 

16,800 

15,500

14,200 

13,600 

12,400 

12,200 

11,600

Secondfoot-days

565,590 

404,860 

520,980

5,628,410

392,310 

245,420 

2£9,190 

328,380 

719,300 

1,096,100 

624,200 

418,600 

325,660

5,870,590

May

10,800 

1O,3OO 

11,300 

13,300 

13,000

17,100 

18,200 

15,100 

13,600 

13,300

13,300 

13,300 

15,800 

16,100 

15,100

15,100 

17,500 

17,900 

16,800 

18,600

26,200 

28,800 

26,200 

27,100 

33,400

41,100 

51,500 

62,000 

52,700 

39,600 

35,200

Maximum

69,000 

23,700 

32,000

69,000

22,000 

14,200 

11,600 

18,600 

62,000 

53,300 

27,500 

21,600 

16,100

69,000

June

34,300 

35,700 

36,700 

34.3OO 

35,700

38,600 

48,50O 

49,700 

50,900 

53,300

49,700 

41,100 

37,200 

34,300 

34,300

34,800 

36,200 

32,400 

34,800 

34,300

37,600 

34,800 

30,600 

29,700 

29,300

28,800 

25,300 

28.8OO 

32,900 

31,500

Julj27,500 

25,800 

25,300 

26,200 

24,100

25,3<00 

25,800 

22,000 

20,800 

19,700

17,900 

17,500 

18,600 

18,600 

18,600

21,200 

20 , 500 

24,500 

20,800 

18,200

17,500 

17,900 

17.EOO 

16,100 

12,700

14,800 

17,800 

17,100 

17,500 

17,500 

18,900

Minimum

6,340 

9,050 

9,780

4,480

8,110 

5,350 

5,730 

6,130 

10,300 

25,300 

12,700 

10,300 

8,110

5,350

Aug.

21,600 

20,500 

17,500 

19,300 

15,500

13,600 

11,300 

10,300 

11,100 

11,900

11,600 

11,300 

11,300 

10,300 

10,500

11,100

10,500

11,300 

11,300 

11,100

13,500 

16,100 

13,300 

13,900 

15,100

14,500 

15,100 

15,500 

12,400 

13,300 

13,000

Mean

18,240 

13,500 

16,810

15,420

12,660 

8,463 

7,393 

10,950 

23,200 

36,540 

20,140 

13,500 

10,860

16,040

Sept.

11,600 

11,700 

16,100 

12,700 

10,300

9,290 

9,530 

10,300 

10,500 

9,780

9,290 

8,110 

8,810 

9,530 

11,300

11,900 

10,500 

9,290 

8,570 

9,050

10.OOO 

15,800 

13,900 

12,400 

10,300

8,810 

10,300 

11,900 

13,000 

11,100

Runoff In 

acre-feet

1,122,000 

803,000 

1,033,000

11,160,000

778,100 

486,800 

454,600 

651,300 

1,427,000 

.2,174,000 

1,238,000 

830,300 

645,900

11,640,000

Peak discharge (base, SO.OOO sec.-ft.).- Oct. 19 (8 a.m.) 95,200 sec.-ft.; May 28 (4 p.m.) 67,200 

sec.-ft.; June 10 ( 8 a.m.) 60,000 sec.-ft.
SKAGIT RIVER BASIN 161 

Skagit River near Mount Vernon, Wash.

Location.- Water-stage recorder, lat. 48 0 25'40"', long. 122°20'00", in SE^ sec. 7, T. 34 N., 

R. 3 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. L- November 1940 to September 1948.

Extremes.- Maximum discharge .during year, 69,400 second-feet Oct. 19 (elevation, 28.68

feet); minimum not determined, occurred sometime during period of faulty intake action.

1940-48: Maximum discharge, 94,300 second-feet Oct. 26, 1945 (elevation, 30.25 

feet); mininum, 2,740 second-feet Oct. 26, 1942 (elevation, 7.37 feet).

Maximum stage known, 37 feet in 1906 1, from Great Northern Railway high-water profile.

Remarks.- Records good except those for periods of faulty or fragmentary gfge-height 

record, which are fair. Plow partly regulated by power plants on Baker and tipper 

Skagit Rivers, and by Ross, Diablo, and Lake Shannon Reservoirs (see following page).

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, in second-feet)

Oct. 1-20, Pet. 19 to Sept. 3O Oct. 21 to Pet. 18

10.6 6,560 18.0 24,700 10.0 6,850 16.0 1?,2OO 

11.0 7,280 20.0 31,200 11. O 8.50O 18. O 24,70O 

12.0 9,160 22.0 38,900 12.0 1O.30O 2O.O 31,200 

13.0 11,4OO 24.0 46.9OO 13.0 12,3OO 22.0 3F,9OO 

14.0 13,700 26.0 55,900 14.0 14.4OO 

16.0 19,000 27.0 60,900

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6,560 

8,58O 

23,800 

30,200 

19,300

13,200 

11,800 

1O.9OO 

1O,7OO 

11,400

10,300 

9,160 

8,760 

10,700 

12,300

28,800 

24,700 

27,400 

55,000 

48 , 800

26,100 

20,500 

19,200 

17,900 

17,900

21,300 

19,900 

17,600 

16,400 

16,900 

16,200

Nov.

25,000 

21,000 

18,400 

16,000 

15 , 100

14,800 

16,900 

23,000 

21,000 

17,900

19,200 

16,700 

16.7OO 

16,400 

15,500

13,700 

13,500 

15,700 

14,600 

13,300

12,700 

12,100 

11,500 

11,100 

11,500

15,100 

15,300 

12,500 

12,300 

11,700

Dee.

12,100 

13,100 

14.OOO 

13,500 

12,900

12,500 

11,500 

11,100 

11,900 

11,900

11,700 

11,500 

12,700 

19,700 

17,200

16,400 

24,700 

28,OOO 

28,000 

21,300

18,400 

18,600 

21,300 

38,900 

28.80O

21,800 

24,700 

34,500 

27,100 

21,000 

19,700

Jan.

24,400 

28.4OO 

23,000 

21,300 

18,600

18,400 

18,600 

19,200 

17,400 

16,700

16,400 

14,800 

14,400 

13,700 

13,500

12 , 900 

12,700 

11,900 

11,500 

12,100

11,500 

11,700 

13,100 

13,500 

12,300

11,700 

12,300 

11,300 

11,300 

11,300 

10,700

Feb.

9,760 

8,860 

9,760 

9,760 

9,040

8,860 

e8,000 

e7,5OO 

e7,000 

8,500

e8,700 

e8,300 

e7,500 

e7,000 

e7,000

e8,300* 

11,700 

16,200 

14,500 

11,100

10,900 

13,000 

14,200 

11,800 

11,400

13,200 

15,200 

13,000 

10,900

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

10,000

10,500 

9,600 

9,160 

8,760

8,560 

8,OOO 

7,640 

7,820 

7,640

7,460 

7,280 

7,100 

6,920 

6,740

6,920 

6,740 

6,920 

6,920 

6,740

7,100 

13,200 

12,000 

10,00 

9,160

8,960 

8,760 

8,180 

8,360 

9,600 

9,160

Apr.

8, 

8, 

9, 

8, 

8,

8, 

8, 

8, 

7, 

8,

7, 

7, 

7, 

7, 

8,

10, 

16, 

14, 

13, 

14,

16, 

18, 

20, 

19, 

17,

15,

15, 

13,

12, 

12,

Secondfoot-days

592,260 

470,200 

590,500

5,996,780

470,600 

300,940 

261,900 

354,020 

765,000 

1,178,300 

631,800 

426,500 

347,800

6,389,820

960 

960 

160 

360 

180

180 

360 

000 

820 

000

640 

280 

820 

820 

180

900 

300 

700 

200 

700

500 

800 

200 

300 

900

500 

000 

500 

800 

000

May

11,800 

10,900 

11,400 

14,200 

14,200

19,300 

21,800 

18,500 

15,800 

14,500

14,700 

14,200 

17,100 

19,000 

17,600

16,500 

17,900 

16,800 

18,200 

18,800

24,100 

30,200 

29,100 

27,400 

32,600

41,700 

49,600 

58,400 

59,900 

48,700 

40,100

Maximum

55,ooo 

25,000 

38,900

55,000

28,400 

16,200 

13,200 

20,200 

59,900 

55,400 

29,800 

20,700 

15,800

59,900

June

38,900 

38,100 

40,100 

38,900 

38,500

40,900 

47,400 

53,600 

54,100 

55,400

54,600 

49,200 

41,700 

38,100 

37,300

37,300 

39,700 

37,700 

34,900 

36,100

39,300 

40,100 

34,500 

30,500 

30,800

30,200 

27,700 

27,100 

32,600 

33,000

July

29,800 

26.50C 

25,300 

25,900 

25,300

24,400 

26,200 

24,700 

21,800 

21,000

18,800 

17,100 

18,500 

19,300 

18,200

19,600 

19,900 

23,000 

23,000 

18,800

17,900 

17,600 

17,400 

16,800 

14,200

14,200 

16,000 

17,900 

17,400 

17,400 

17,900

Aug.

2O,4OO 

20,700 

17,900 

18,500 

16,800

14,200 

12,500 

11,100 

10,700 

11,600

11,800 

11,600 

11,600 

10,700 

10,000

11,100 

10,900 

10.9OO 

11,400 

11,600

12,800 

16,800 

14,200 

14,000 

15,000

15,000 

15,200 

16,000 

14,000 

13,000 

14,500

Minimum Mrnn

6,560 19,110 

11,100 15,670 

11,100 19,050

5,000 16,430

10,700 15,180 

7,000 10,380 

6,740 8,448 

7,280 11,800 

10,900 Z', 680 

27,100 31,280 

14,200 20,380 

10,000 13,760 

8,760 11,590

6,560 17,460

Sept.

12,500 

11,800 

15,500 

15,200 

11,800

10,700 

9,600 

10,700 

10,900 

10,300

10,300 

9,160 

8,760 

9,820 

11,100

13,700 

11,600 

10,500 

9,380 

8,760

9,820 

15,500 

15.80O 

13,700 

12,300

9,60O 

10,500 

12,000 

14,200 

12,300

Runoff In 

acre-feet

1,175,000 

932,600 

1,171,000

11,890,000

933,400 

596,900 

519,500 

702,200 

1,517,000 

2,337,000 

1,253,000 

846, OOO 

689,900

12,670,000

Peak discharge (base, 55,000 see.-ft.).- Oct. 19 (8:30 p.m.) 69,400 sec.-ft.; May 29 (2 a.m.) 

63,400 sec.-ftT; June 10 (7 p.m.) 58.90O sec.-ft.

e Faulty Intake action; discharge computed on basis of records for-station near Concrete.

Note.- Fragmentary gage-height record Nov. 25, Mar. 8, 11-21, Apr. 12, Aug. 14-16, Sept. 8-15, 

19-21, 27; discharge computed from partly estimated gage heights.
162 SKAGIT RIVER BASIN

Reservoirs in Skagit River Basin, Wash,.

Roas Reservoir.- See page 157.

Diable Reservoir.- Water-stage recorder, lat. 48°43', long. 121°08', in Diablo Dam on 

Skagit Kiver, in SE^ sec. 5, T. 37 N., R. 13 E. (unsurveyed), 1 mile downstream from 

Thunder Creek and 6 miles northeast of Newhalem. Datum of gage is at mean sea level, 

subject to adjustment to datum of 1929. Records available, October 1929 to September 

1948. October 1929 to September 1938, change in reservoir contents published with 

tables of monthly discharge for Skagit River at Newhalem. Maximum contents during 

year, 90,310 acre-feet May 22 (elevation, 1,206.18 feet); minimum, 84,000 acre-feet 

Oct. 27 (elevation, 1,199.1 feet). Maximum contents during period 1929-48, 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.- Staff gage, lat. 48°33', long. 121°44', in sec. 2, T. 35 N., R. 8 E., on 

tiaker Kiver, 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 1948.

Reservoir is formed by concrete dam, completed in June 1927. Capacity, 132,500 acrefeet 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 1947 to Septembe

Date

Calendar year 1947...

July 31 ................

Sept. 30. ...............

Water year 1947-48...

Diablo Reservoir

Elevation 

(feet)t

1,203.5 

1,204.9 

1,205.1 

1 , 204 . 2

-

1,203.2 

1,205.3 

1,204.3 

1,203.7 

1,203.2 

1,203.6 

1,204.6 

1,203.5 

1,203.9

-

Contents 

(aerefeet)t

87,860 

89,130 

89,310 

88,490

-

87,590 

89,500 

88,580 

88,040 

87,590 

87,590 

88,860 

87,860 

88,220

-

Change in 

contents 

during month 

(acre -feet)

+1,270 

+180 

-820

+2,670

-900 

+1,910 

-920 

-540 

-450 

+360 

+910 

-1,000 

+360

+360

Lake Shannon

Elevation 

(feet)t

431.21 

435.65 

432.97 

435.88

-

431.66 

428.14 

409.92 

416.92 

432.44 

435.04 

435.77 

435.73 

435.43

-

Contents 

(acrefeet )t

147,780 

157,710 

151,680 

158 , 230

-

148,780 

141,070 

103,860 

117,630 

150,510 

156, 33? 

157,980 

157,890 

157,210

-

Change in 

contents 

during month 

(acre-feet)

+9,930 

-6,030 

+5,550

+2,930

-9,450 

-7,710 

-37,210 

+13,770 

+32,880 

+5,820 

+1,650 

-90 

-680

+9,430

t Elevation and contents at 12 p.m.
SKAGIT RIVER BASIN 163

Lightning Creek near Newhalem, Wash.

Location.- Water-stage recorder, lat. 48°53 I 30", long. 120°58'50", in SEij sec. 4, T. 39

H., R. 14 E. (unsurveyed), a quarter of a mile downstream from Three Poolf Creek, 

«. 3 miles upstream from mouth, and 19 miles northeast of Newhalem.

Drainage area..- 129 square miles.

Records avail-able.- October 1943 to May 1948 (discontinued).

Extremes.- Maximum discharge during period October to May not determinea, occurred sometime Curing period of no gage-height record May 27-31; minimum, 46 second-feet Feb. 17 

(gage height, 0.79 foot).

1943-48: Maximum discharge, that of May 27-31, 1948; minimum, that of Feb. 17, 

1948.

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

No diversion or regulation.

Rating table, October 1947 to May 1948 (gage height, 

in feet, and discharge, in second-feet)

1.0 

1.2 

1.4 127

178

239

317

418

575

835

1,160

4.5 

5.0 

5.5 

6.0

1,560

2,020

2,530

3,080

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

82

119

114

125

124

113

106

100

108

106

99

99

104

105

119

155

160

237

609

339

258

221

203

191

215

320

297

276

249

237

244

Nov.

303

281

258

239

224

215

207

215

199

199

191

182

180

169

164

158

158

155

146

145

135

140

135

135

140

162

162

160

160

160

-

Dec.

162

158

157

148

143

143

141

138

137

130

129

127

176

178

160

158

182

193

180

167

160

155

186

258

251

244

297

375

326

281

258

Jan.

241

221

203

195

182

180

171

165

157

157

146

138

138

140

133

132

130

129

127

125

125

127

127

125

122

110

114

114

117

113

111

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

F-iy ...........................

june ..........................

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

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

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

The period. ............

Feb.

108

105

104

100

92

89

100

99

95

85

86

93

90

90

86

92

73

193

145

129

121

111

113

106

104

108

105

100

99

_

-

Secondfoot-clays

5,834

5,477

5,898

129 792

4,515

3,021

2,996

9,133

37,897

_

_

-

-

Mar.

98

96

93

92

90

89

90

90

86

85

85

85

85

86

89

90

89

89

85

83

96

111

99

96

96

95

98

114

141

137

138

Maximum

609

303

375

2,150

241

193

141

748

4,000

_

_

-

-

Apr.

135

133

133

127

122

116

116

119

125

129

129

125

124

130

184

425

444

444

478

517

655

748

660

562

485

418

368

342

329

311

-

May

289

276

292

303

297

358

455

463

505

533

584

606

620

575

541

575

670

720

670

955

1,470

1,740

1,650

1,920

2,370

2,860

33,500

34,000

33,500

a2,600

a2,000

Minimum

82

135

127

50

110

73

83

116

276

_

_

-

-

June

Mean

188

183

190

356

146

104

96.6

304

1,222

_

_

-

-

July

Per 

square 

mile

1.46

1.42

1.47

2.76

1.13

.806

.749

2.36

9.47

_

_

-

-

Aug. Sept.

Runoff

Inctes Acre feet

1.68 11,570

1.58 10,860

1.70 11,700

37.41 257,400

1.30 8,960

.87 5,990

.86 5,940

2.63 18,120

10.93 75,170

_

_

-

148,300

a No gage-height record; discharge computed on basis of records for nearby streams
164 SKAGIT RIVER BASIN

Beaver Creek near Newhalem, Wash.

Location.- Water-stage recorder, lat. 48°47', long. 121°05', in sec. 14, T. 38- N., R. 13 

E. , three-quarters of a mile upstream from Ross Reservoir, 3-j miles north of Ross Dam 

on Skagit River, and 10J miles northeast of Newhalem.

Drainage area.- 63 square miles.

Records available.- March 1940 to September 1948 (discontinued).

Extremes.- Maximum discharge during year, 2,490 second-feet May 28, June 10 (gage height, 

6.3Y reet); minimum, 73 second-feet Feb. 10 (gage height, 1.07 feet).

1940-48: Maximum discharge, 3,300 second-feet Dec. 2, 1941 (gage height, 7.76 feet), 

from rating curve extended above 1,100 second-feet; minimum, 65 second-feet Jan. 14, 

1947 (gage height, 0.97 foot).

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

No .diversion or regulation.

Revisions (water years).- W 982: 1942.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.1 76 2.2 262 4.0 

1.3 98 2.5 345 5.0 

1.5 126 2.8 441 6.2 

1.7 159 3.1 546 

1.9 196 3.5 700

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.

278 

918 

1,120 

1,210 

546

376 

275 

225 

275 

230

210 

220 

350 

250 

350

350

400 

700 

1,500

900

500 

450 

400 

350 

450

700 

500 

450 

430 

400 

450

Nov.

700 

546 

458 

402 

357

325 

350

400 

350 

300

270 

250 

250 

230 

216

204 

202 

198

186 

179

168 

161 

154 

150 

152

194 

188 

181 

172 

166

Dec.

168 

163 

159 

150 

142

137 

134 

131 

128 

122

118 

116 

210 

250 

212

204 

305 

389 

360 

305

275 

252 

403 

660 

546

458 

578 

720 

564 

475 

421

Jan.

389 

351 

308 

285 

255

245 

234 

229 

212 

208

190 

177 

f!68 

f!61 

f!52

147 

144 

140 

134 

131

128 

131 

129 

131 

126

f!20 

fl!4 

110 

108 

108 

104

Feb.

102 

101 

98 

94 

91

93 

90 

92 

87 

82

94 

83 

82 

83 

92

88 

111 

229 

198 

170

161 

157 

144 

136 

134

145 

140 

134 

131

Month Second- 11011111 foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

5,763 

8,059 

9,255

lendar year 1947 ......... 153,321

ary .

st ........................ i

ember ..................... l

5,569 

3,442 

3,498 

9,901 

9,951 

1,965 

9,463 

5,001 

1,640

ter year 1947-48 .......... 172,507

Mar.

128 

122 

116 

111 

108

107 

107 

104 

102 

101

99 

98 

98 

96 

96

94 

94 

96 

93 

92

113 

147 

128 

122 

118

114 114' 

122 

145 

154 

159

Maximum

1,500 

700 

720

1,500

389 

229 

159 

740 

2,350 

2,280 

885 

762 

740

2,350

Apr.

159 

161 

157 

149 

142

137 

136 

134 

139 

139

144 

142 

142 

145 

175

402 

510 

510 

528 

528

602 

740 

720 

640 

564

492 

421 

373 

351 

319

935 

1,510 

2,350

1947 to September

May

1

1 

1 

1 

1

1 

2 

2 

2 

1 

1

Minimum

210 

150 

116

79

104 

82 

92 

134 

285 

885 

475 

357 

260

82

302 

285 

322 

364 

367

540 

640 

602

602 

602

640 

660 

720 

680 

602

583 

680 

700 

660 

860

210 

420 

300 

330 

650

930 

210 

350 

070 

620 

450

June

1,420 

1,480 

1,580 

1,480 

1,720

1,860 

2,140 

2,210 

2,210 

2,280

2,000 

1,680 

1,450 

1,360 

1,330

1,300 

1,210 

1,060 

1,120 

1,150

1,120 

985 

935 

935 

910

885 

885 

1,060 

1,120 

1,090

Mean

508 

269 

299

420

180 

119 

113 

330 

966 

1,399 

628 

484 

355

471

Peak discharge (base, 1,300 sec. -ft.).- Oct. 4 (4:30 to 5 a.m.) 1,930 a

1948

July Aug.

885 

700 

680 

680 

602

640 

640 

564 

510 

602

602 

528 

510 

564 

640

700 

740 

835 

762 

700

640 

680 

680 

564 

475

475 

698 

528 

510 

546 

583

Per 

square 

mile

8.06 

4.27 

4.75

6.67

2.86 

1.89 

1.79 

5.24 

15.3 

22.2 

9.97 

7.68 

5.63

7.48

ec.-ft.;

640 

640 

602 

762 

528

428 

376 

395 

438

4i406 

402 

458

458

392 

357 

428 

475 

415

621 

583 

441 

458 

475

458 ' 

528 

564 

441 

510 

458

Sept.

373 

434 

740 

458 

360

31fc 

305 

316 

336 

339

339 

316

305 

308 

400

350 

300 

285 

270 

260

350 

500 

350 

300 

280

300 

350 

400 

360 

340

Runoff

Inches

9.31 

4.76 

5.46

90.49

3.29 

2.03 

2.06 

5.84 

17.68 

24.77 

11.49 

8.86 

6.28

101.83

Oct. 19

Acre-feet

31,270 

15,980 

18,360

304,100

11,050 

6,830 

6,940 

19,640 

59,410 

83,240 

38,600 

29,750 

21.100

342,200

(time and

discharge unknown); May 28 (9:30 a.m.) 2,490 sec.-ft. ; probably June 10 (7:30 a.m.) 2,49O sec.-ft.

f Computed o.n basis of partly estimated gage-height record.

Note.- No gage-height record Oct. 7 to Nov. 1, Nov. 6-14, Sept. 15-30; discharge computed on basis 

of records for nearby streams.
SKAGIT RIVER BASIN 165

Ruby Creek near Newhalem, Wash.

Location.- Water-stage recorder, lat. 48°43', long. 1S1°00', in SE£ sec. 5, T. 37 N., R. 

 14 E., 2 miles upstream from mouth and 12 miles northeast of Newhalem.

Drainage area.- 203 square miles.

Records available.- June 1919 to March 1920/"April 1930 to September 1948.

Average discharge.- 18 years (1930-48), 625 second-feet.

Extremes.- Maximum discharge during year,-9,920 second-feet May 27 (gage height, 9.2 feet), 

from rating curve extended above 5,600 second-feet; minimum, 25 second-feet Feb. 16 

(gage height, 1.96 feet, result of snow slides upstream).

1919-20/1930-48: Maximum discharge, that of May 27, 1948; minimum, tl-at of Feb. 

16, 1948.

Remarks.- Records good except those for periods of ice effect, which are poor. No diversion or regulation.

Rating tables, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

/ (Shifting-control method used May 27)

3.1 

3.3 

3.5 

3.7 

4.0

Oct. 1 to May 26 May 27 to Sept. 30

107 

'141 

183 

233 

323

4.3 

4.6 

5.0 

5.5 

6.0

436

575

830

1,260

1,810

6.5 

7.0 

7.5 

8.0

2,520

3,320

4,260

5,320

3.5 

3.7 

4.0 

4.3 

4.6

231

292

404

551

743

5.0 

5.5 

6.0 

6.5 

7.0

1,070 

l',570 

2,180 

2,930 

3,850

7.5 

8.0 

8.5 

9.0

4,980

6,250

7,670

9,250

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

168 

365 

484 

424 

326

253 

215 

202 

208 

207

197 

188 

200 

210 

226

294 

288 

423 

1,250 

614

-470 

400 

362 

330 

358

520 

453 

412 

373 

351 

366

NOT.

440 

396 

366 

340 

320

310 

310 

323 

297 

297

285 

273 

276 

255 

247

236 

239 

239 

223 

220

197 

212 

207 

207 

223

291 

291 

279 

276 

273

Dec.

282 

267 

261 

 247 

225

228 

230 

223 

220 

212

210 

205 

253 

247 

230

225 

239 

261 

247 

230

223 

215 

225 

264 

267

267

304 

330 

310 

 285 

270

Jan.

267 

258 

241 

236 

223

223 

220 

212 

200 

205

195 

179 

bl80 

188 

176

174 

174 

172 

168 

168

170 

179 

183 

183 

163

161 

b!70 

b!70 

blSO 

 161 

155

Month

Octo 

Hove 

Dece

Ca

Jami 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augtl 

Sept

Wa

mber .......... f ...........

lender year!94T 

ary

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

ter year 1947 -48 ..........

Feb.

153 

145 

153 

147 

136

blSO 

b!40 

bloO 

b!45 

b!40

b!35 

blSO 

blSO 

136 

130

128 

120 

185 

149 

137

136 

134 

128 

127 

130

143 

137 

134 

 132

Secondfoot-clays

11,129 

8,348- 

7,702

244,258

5,934 

4,020 

3,997 

13,347 

67,036 

1*8,070 

40,836 

14,469 

9,161

294,049

Mar.

130 

127 

121 

123 

121

121 

123 

121 

120 

113

120 

118 

118 

118 

118

118 

118 

118 

117 

115

- 128 

141 

130 

128 

127

123 

130 

155 

185 

176 

176

Maximum

1,250 

440 

330

3,960

267 

185 

185 

1,140 

8,920 

6,120 

6,660 

654 

396

8,920

Apr.

174 

179 

179 

168 

161

157 

155 

153 

163 

165

165 

161 

161 

174 

288

597 

619 

636 

666 

725

966 

1,140 

1,020 

870 

739

642 

580 

535 

525 

48'

May

458 

436 

458 

458 

453

550 

£54 

660 

678 

704

774 

816 

886 

816 

795

870 

1,040 

1,070 

1,010 

1,360

2,220 

2,670 

2,600 

3.07C 

3,870

4,990 

7,080 

8,920 

8,160 

4,860 

3,650

Minimum

168 

197 

205

95

155 

120 

113 

153 

436 

2,250 

557 

388 

248

113

June -

3,560 

3,460 

3,650 

3,460 

3,960

4,620 

5,720 

5,850 

5,470 

5,340

4,510 

3,750 

3,280 

3,190 

3,020

3,100 

3,100 

2,610 

2,540 

2,540

2,610 

2,250 

2,320 

2,460 

2,320

2,320 

2,670 

3,650 

4,620 

6,120

Mean

359 

278 

248

669

191 

139 

129 

445 

2,162 

3,602 

1,317 

467 

305

803

July

6,660 

5,470 

3,750 

2,390 

1,410

1,110 

1,150 

992 

915 

966

966 

842 

796 

818 

874

906 

949 

1,000 

932 

826

780 

788 

766 

641 

568

557 

647 

592 

568 

592 

615

Per

aquare 

mile

1.77 

1.37 

1.22

3.30

.941 

.685 

.635 

2.19

17!7 

6.49 

2.30 

1.50

3.96

Aug.

647 

628 

592 

654 

530

474 

43? 

41t 

431 

440

422 

400 

459 

478 

535

483 

440 

444 

422 

40C

422 

436 

431 

426 

436

426 

444 

474 

436 

422 

388

Sept.

363 

352 

396 

352 

323

302 

292 

292 

295 

299

295 

289 

282 

295 

348

309 

289 

266 

254 

248

260 

319 

286 

279 

270

279 

286 

352 

363 

326

Runoff

Inches

2.04 

1.53 

1.41

44.76

1.09 

.74 

.73 

2.45 

12;28 

19.80 

7.48 

2.65 

1.68

53. '88

Acre-feet

22,070 

16,560 

15,280

484,500

11,770 

7,970 

7,930 

26,470 

133,000 

214,400 

8],, 000 

28,700 

18,170

583,300

Peak discharge (base, 2,600 sec. -ft.).- May 27 (9 p.m.) 9,920 sec. -ft.; June 7 (10 p.m.) 6,380

,sec.-ft.; July 1 (9 a7m.) r 6,946 sec. -ft.

 Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
166 SKAGIT RIVER BASIN

Granite Creek near Newhalem, Wash.

Location.- Water-stage recorder, lat. 48°41'40", long. 120°53'30", in SE^NE^ sec. 20, T. 37 

N., R. 16 E., at 1-mile trail bridge about 1 mile upstream from confluence with Canyon 

Creek and 16 miles east of Newhalem.

Drainage area.- 69 square miles.

Records available.- October 1946 to April 1948 (discontinued).

Extremes.- Maximum discharge daring period October to April, 879 second-feet Oct. 19 (gage 

height, 4.98 feet); minimum, 25 second-feet Mar. 10 (gage height, 2.07 feet).

1946-48: Maximum discharge, 1,800 second-feet May 26, 1947 (gage height, 5.79 feet); 

minimum, that of Mar. 10, 1948.

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. No diversion 

or regulation.

Rating table, October 1947 to April 1948, except periods of Ice effect 

or shifting control (gage height. In feet, and discharge, In second-feet)

2.2 

2.4

2.7

34

45

3.0 

3.3 

3.6

98

140

201

3.9 

4.2 

4.5

285

396

546

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

139

134

105

91

76

66

62

66

66

62

60

64

64

75

106

104

158

493

-222

172

145

130

121

129

174

156

149

135

127

138

Nov.

183

153

*137

126

120

116

117

120

113

111

104

100

100

94

91

87

88

86

80

79

66

78

74

72

79

99

94

89

88

88

-

Dec.

91

87

*85

81

72

77

80

77

75

72

68

71

68

84

77

74

76

83

78

74

72

72

73

79

79

77

85

88

83

78

*76

Jan.

74

75

73

71

68

68

67

66

62

62

60

54

54

61

56

54

55

54

53

52

52

54

55

55

43

43

48

48

51

48

*45

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

The period. ..................

Feb.

44

40

43

43

40

b39

b39

b45

44

41

b40

b40

42

41

39

39

40

48

43

41

40

40

39

38

38

43

*41

40

39

_

-

Secondfoot-days

3, 836

3,032

2,432

88,789

1 , 189

1 , 261 

4,097

_

-

Mar.

39

38

38

38

38

38

38

38

37

34

39

38

38

38

38

38

38

38

38

38

41

41

43

41

42

41

43

50

57

53

52

Maximum

493

183

91

1,610

75

48

57

315

_

-

Apr.

51

52

51

48

47

46

46

46

48

48

48

48

48

54

88

190

183

185

196

217

279

315

288

264

238

217

199

187

190

al80

May

Minimum

47

66

68

36

43

38

34

46

_

.

June

Mean

124

101

78.5

243

57.5

41.0

40.7

137

_

_

July

Per 

square 

Bile

1 . 60

1.46

1.14

3.52

 833

 594

590

1.'99

_

_

Aug. Sept.

Runoff

Inches Acre-feet

2.07 7,810

1.63 6,010

1.31 4,820

47.86 178,100

.96 3,530

.64 2,360

.68 2 , 500

2 > 21 8 , 130

~ ~_

34.960

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for Thunder Creek near Newhalem.

b Stage-discharge relation affected by Ice.

Hote.- Shifting-control method used Jan. 4 to Mar. 27.
SKAGIT RIVER BASIN 167

Thunder Creek near Newhalera, Wash.

Location.- Water-stage recorder, lat. 48°40', long. 121°04', In SEij sec. 2?, T. 37 N., R.

 13 E. (unsurveyed), half a mile upstream from backwater from Dlablo Reservoir, 8 miles 

east of Newhalem, and 20 miles northeast of Marblemount.

Drainage area.- 98 square miles.

Records available.- October 1930 to September 1948.

Average discharge.- 18 years, 598 second-feet.

Extremes.- Maximum discharge during year, 4,410 second-feet Oct. 19 (gage height, 8.90

 feet), from rating curve extended above 2,900 second-feet; minimum, 92 second-feet Feb. 

6, 11 (gage height, 1.97 feet).

1930-48: Maximum discharge, 8,780 second-feet Feb. 26, 1932 (gage height, 11.3 

feet), from rating curve extended above 2,000 se^und-feet; minimum not determined, 

occurred during period of ice effect or no gage-height record.

Remarks.- Records excellent. No diversion or regulation. 

Revisions (water years).- W 1012: 1943.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1-18 Oct. 19 to Sept. 3O

3.1 304 5.5 1,290 1.9 82 3.2 355 

3.5 418 6.0 1,610 2.1 111 3.5 445 

4.0 588 6.5 1,970 2.3 144 4.0 615 

4.5 785 7.0 2,370 2.5 183 4.5 820

E.O 1,020 2.7 226 5.0 1,050 

2.9 274 5.5 1,320

Discharge, in second-feet, water year October 1947 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.

702 

2,310 

2,370 

1,780 

920

625 

450 

403 

434 

356

307 

332 

610 

388 

535

588 

466 

763 

2,260 

888

634 

510 

445 

399 

601

1,000 

562 

494 

414 

378 

414

Nov.

527 

430 

378 

341 

314

297 

311 

370 

316 

308

292 

269 

269 

254 

242

226 

233 

228 

217 

206

187 

187 

185 

183 

286

510 

347 

285 

256 

244

Dec.

247 

231 

224 

211

198

189 

183 

179 

175 

167

163 

159 

231 

226 

204

200 

303 

311 

292 

256

238 

222 

295 

430 

384

352 

414 

445 

375

330 

300

Jan.

290 

282 

259 

242 

226

222 

222

217 

204

200

183 

175 

169 

167 

157

154 

152 

144 

141 

137

134 

139 

144 

144 

136

129 

129 

127 

122 

121 

119

Feb.

116 

113 

111 

110 

104

100 

102 

105 

102 

98

96 

95 

95 

96 

102

99 

120 

167 

139 

134

130 

132 

127 

122 

121

141 

141 

136 

129

ii _*>, SecondMonth foot-days

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

2

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

23,338 

8,698 

8,134

22,043

5,387 

3,383 

3,488 

8,952 

33,195 

62,150 

34,920 

31,603 

17,934

ter year 1947-48 .......... 241,182

Mar.

124 

121 

114 

113 

110

108 

106 

105

102 

100

100 

98

98 

98 

96

95 

95 

95 

95 

93

111 

148 

132 

125 

121

116 

116 

122 

137 

146 

148

Maximum

2,370 

527 

445

2,370

290 

167 

148 

691 

3,550 

3,220 

1,530 

1,470 

1,020

3,550

Apr.

146 

148 

150 

142 

137

130 

1.29 

127 

130 

130

132 

130 

130 

134 

162

363 

414 

414 

430 

461

566 

691 

634 

562 

510

445

384 

358 

349 

314

May

1 

1 

1 

1,

1,

2, 

2, 

3,

3, 

2, 

1,

Minimum

307 

183 

159

105

119 

95 

93 

127 

274 

1,410 

865 

798 

335

93

Peak discharge (base, 2,400 sec. -ft.).- Oct. 2 (2 p.m.) 3,780

sec. -ft. ; May 29 (2 a.m.) 4,020 sec. -ft.

292 

274 

287 

290 

292

447 

510 

477 

494 

477

494 

510 

544 

510 

477

510 

634 

652 

597 

787

230 

380 

290 

470 

910

460 

920 

550 

330 

220 

880

June

1,880 

1,910 

2,060 

1,940

2,300

2,550 

3,120 

3,120 

2.9HO 

3,220

2,920 

2,380 

2,140 

2,060 

1,980

2,060 

2,060 

1,740 

1,770 

1,800

1,910 

1,600 

1,470 

1,470 

1,440

1,410 

1,470 

1,800 

1,880 

1,770

Mean

753 

290 

262

608

174 

117 

113 

298 

1,071 

2,072 

1,126 

1,019 

598

659

sec. -ft.;

6.0 1,630 

6.5 1,980 

7.3 2,640

8.2 3,550

1948

July

1,380 

1,120 

1,120 

1,080 

955

1,050 

1,080 

888 

865 

1,000

1,000 

910 

910 

1,000 

1,150

1,350 

1,500 

1,530 

1,320 

1,260

1,230 

1,350 

1,290 

1,020 

910

932 

1,290 

1,000 

1,020 

1,150 

1,260

Per 

square 

mile

7.68 

2.96 

2.67

6.20

1.78 

1.19 

1.15 

3.04 

10.9 

21.1 

11.5 

10.4 

6.10

6.72

Oct. 19

Aug.

1,410 

1,410 

1,350 

1,470

1,050

888 

798 

865 

932 

978

955 

932 

910 

888 

1,030

820 

820 

910 

842 

820

1,020 

978 

865 

910

1,260

1,180 

1,200 

1,200 

1,050 

1,020 

842

Sept

732 

814 

1,020 

672 

562

510 

527 

597 

672 

732

775 

732 

732 

754

910

615 

562 

445 

414 

430

656 

842 

494 

399 

338

347 

375 

527 

414 

335

Runoff

Inches

8.86 

3.30 

3.09

84.26

2.04 

1.28 

1.32 

3.40 

12.60 

23.59 

13.25 

11.99 

6.81

91.53

(2 a.m.

Acre-feet

46,290 

17,250 

16,130

440,400

10,680 

6,710 

6,920 

17,760 

65,840 

123,300 

69,260 

62,680 

35,570

478 , 400

) 4,410

939922 O- 51 - 12
168 SKAGIT RIVER BASIN

Stetattle Creek near Newhalem, Wash.

Location.- Water-stage recorder, lat. 48°43'40", long. 121°09'30", in NE£ sec. 6, T. 37 N., 

K. 13 E. , three-quarters of a mile upstream from mouth, 5-J miles northeast of Newhalem, 

and 18-J miles northeast of Marblemr int.

Drainage area.- 21 4 square miles,.

Records available.- September 1933 to September 1948. December 1913 to March 1914 and 

December 1914 to April 1915 at-site half a mile downstream, published as Stetattle 

Creek near Marblemount.

Average discharge.- 15 years (1933-48), 163 second-feet.

Extremes.- Maximum discharge during year, 2,730 second-feet Oct. -19 (gage height, 6.80

feet), from rating curve extended above 800 second-feet; minimum, 23 second-feet probably 

Feb. 13, 14 (gage height, 2.05 feet, from recorded range in stage).

1913-15, 1933-48: Maximum discharge, 4,520 second-feet Nov. 5, 1934 (gage height, 

10.4 feet, site and datum then in use), from rating curve extended above 400 secondfeet; minimum, 9 second-feet Nov. 9-H, 1936.

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

fair. No diversion cr regulation.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

2.2 

2.4 

2.6 

2.9

Oct. 

63

126

187

Oct. 19 to Sept. 30

3.2 

3.5 

4.0 

4.6

260

350

535

820

2.0 

2.2 

2.4 

2.6 

2.9

56

83

137

3.2 

3.5 

4.0 

4.5 

5.0

212

305

490

730

1,060

Discharge, in second-feet, water year Octoberi947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

75

440

781

504

227

137

100

102

144

110

85

79

173

110

316

318

340

656

963

312

188

144

131

113

283

308

153

131

104 

108

135

Nov.

200

170

150

135

125

120

125

150

125

120

110

100

100

90

80

73

74

70

63

56

52

51

50

50

120

200

125

100

90 

80

~

Dec.

75

66

60

56

52

50

48

45

43

41

40

41

236

158

115

115

238

235

175

131

113

104

338

408

288

215

359

332

207 

153

129

Jan.

127

123

112

110

89

85

85

91

82

77

72

64

59

56

51

49

48

45

43

42

42

46

59

64

57

50

46

44

43 

41

39

Month

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

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

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

Calendar year 1947 ........

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

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

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

April ....'. ..............

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

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

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

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

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

Water year 1947-48 . . . . ....

Feb.

38

36

35

34

32

30

31

32

30

28

26

24

23

23

25

24

50

150

100

90

86

91

78

72

68

85

82

73

65

-

Secondfoot-days

7,770

3 154

4^666

67,158

2,041

1,561

1,708

4,813

11,881

15,601

6,683

5,078

3,935

68,891

Mar.

62

59

62

49

46

44

43

41

40

38

37

37

37

37

37

37

37

39

38

37

61

94

93

88

73

62

60

70

89 

86

85

Maximum

963

200

408

963

127

150

94

401

857

864

302

343

359

963

Apr.

83

80

79

72

66

61

60

59

61

61

61

61

61

65

113

401

368

302

269

288

357

382

302

253

207

168

137

121

112 

103

-

May

96

94

121

144

155

364

329

272

253

232

244

250

282

244

207

235

312

282

256

462

611

574

482

551

719

808

857

850

602 

486

507

Minimum

75

50

40

33

39

23

37

59

94

305

142

106

75

23

June

533

560

574

556

635

742

838

802

857

864

708

551

490

490

482

482

416

397

412

420

446

353

339

339

322

305

367

446

470 

405

-

Mean

251

105

151

184

65.8

53.8

55.1

160

383

520

216

164

131

188

July

285

235

244

226

188

263

256

196

201

244

209

185

185

215

247

266

279

302

229

215

198

218

224

162

142

148

241

160

160 

172

388

Per 

square 

mile

11.7

4.91

7.06

8.60

3.07

2 51

2 '57

?! 48

17.9

24.3

10.1

7 . 66

6.12

8.79

Aug.

196

193

172

212

153

127

108

121

129

125

117

112

117

125

165

121

106

112

165

160

343

220

158

193

215

232

153 

165

144

Sept.

113

178

315

162

121

99

89

91

93

91

88

80

76

80

207

127

129

88

75

75

234

359

180

131

103

97

106

160

106 

82

Runoff

Inches Acre-feet

13.50 15,410

5.43 6,260

8.11 9,250

116. 6 1) 133,200

3.55 4,050

2.71 3,100

2.97 3,390

8.33 9,550

20.65 23,570

27.11 30,940

11.61 13,260

8.8? 10,070

6.8«- 7 , 800

119.71 136,600

Peak discharge (base, 1,100 see.-ft.).- Oct. 3 (9:30 p.m.) 1,310 sec.-ft.; Oct. 19 (12:30 a.m.) 

2,730 sec.-ft.7 Ji<ne 9 (10 p.m.) 1,470 sec.-ft. ,

Note. - No gage-height record Oct. 31 to Dec. 1, Dec. 3-5, Feb. 5-20; discharge computed on basis 

of 1 discharge measurement, recorded range In stage, and records for Thunder Creek near Newhalem.
SKAGIT RIVER BASIN 

Bacon Creek near Maroleimunt, Wash.

169

Location.- Wire-weight gage, lat. 48°35', long. 121°24', on line between sees. 20 and 21, 

T. 36"N. , R. 11 E., at highway bridge a quarter'of a mile upstream from mouth and 4j 

miles north of Marblemount.

Drainage area.- 50 square miles.

Records available.- July 1943 to September 1948.

Extremes.- Maximum discharge during year, 5,670 second-feet Oct. 19 (gage height, 5.67 

reet, from graph based on gage readings), from rating curve extended above 2,100 second-feet by logarithmic plotting; minimum observed, 126 second-fest Oct.. 1.

1943-48: Maximum discharge, 7,000 second-feet Oct. 25, 1945 (gage height, 6.2 feet, 

from graph based on gage readings), from rating curve extended above 2,100 second-feet 

by logarithmic plotting; minimum observed, 74 second-feet Oct. 18, 1945.

Remarks> Records good except those for periods of rapidly changing stage, shifting control, and those above 2,500 second-feet, which are fair. Gage read twice daily. No 

diversion or regulation.

Revisions (water years).- W 1062: 1945.

Rating table, water year 1947-48, except periods of shifting control 

(gage height, in feet, and discharge, in second-feet)

1.4 

1.6 

1.9 

2.2

126

173

265

395

2.5 

3.0 

3.5 

4.0

560

940

1,480

2,140

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

XI

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

137

1,250

990

895

500

350

265

265

350

305

248

215

328

248

732

895

940

1,200

1,860

850

530

420

395

350

560

660

395

395

328

350

592

Nov.

850

560

445

372

328

328

372

445

372

350

350

305

328

305

265

248

305

285

248

230

215

200

186

186

230

372

305

265

248

248

-

Dec.

248

230

248

230

200

186

186

173

173

158

156

150

560

395

328

305

660

695

530

420

372

350

895

990

770

592

895

810

560

445

445

Jan.

625

560

472

420

372

350

350

372

328

328

285

265

Z30

230

215

200

200

200

186

186

186

200

200

215

200

186

186

186

173

170

168

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

163

153

153

148

146

139

137

141

137

130

128

130

130

144

168

166

248

372

328

265

230

265

248

230

230

285

285

248

215

-

-

Secondfoot days

17,798

9,746

13,355

153,967

8,444

5,762

5,496

10,154

25,808

36,072

16/306

12,532

10,495

171,968

Mar.

215

200

186

186

173

173

170

168

163

156

156

153

158

153

153

144

148

150

148

144

186

215

186

186

186

173

173

186

248

230

230

Maximum

1,860

850

990

1,860

625

372

248

732

2,000

2,000

732

810

810

2,OOC

Apr.

230

230

215

200

200

186

173

173

173

173

173

173

170

173

215-

625

560

530

500

560

660

732

592

530

445

395

350

305

265

248

-

May

248

230

305

328

328

895

660

530

472

420

420

420

592

5OO

445

500

625

560

530

940

1,200

1,090

940

1,090

1,480

1,800

2,000

2,000

1,600

1,360

1,300

Minimum

137

186

150

108

168

128

144

170

230

695

350

248

186

128

June

1,300

1,420

1,540

1,420

1,540

1,800

2,000

1,860

2,000

1,860

1,480

1,250

1,090

1,040

990

990

940

940

940

940

1,090

895

770

770

732

695

810

990

1,040

940

-

Mean

574

325

431

422

272

199

177

833

1 '526 202

404

350

470

July

732

592

592

592

530

695

660

560

500

560

530

472

445

500

560

625

660

625

560

530

500

472

472

395

350

350

592

445

395

420

395

Per 

square 

mile

11.5

6.50

8.62

8.44

5 44

3 . 98

3. 54

6.76

16.7

24.0

10.5

8 . 08

 7.00

9.40

Aug.

445

420

595

500

395

350

285

285

505

285

265

248

248

285

350

305

265

= 85

?85

350

810

(

<

95

145

>60

592

472 i

I

^

4

60

60

20

72

395

Sept.

328

395

770

445

350

305

265

248

248

248

230

215

215

215

625

395

285

230

200

186

372

810

500

350

285

285

285

530

395

285

Runoff

Inches

13.24

7.25

9.93

114.53

6.28

4.29

4.09

7.55

19.20

12 13

9.32

7.81

127.92

Acre-feet

35,300

19,330

26,490

305,400

16,750

11,430

10,900

20,140

51,190

71,550

32,340

24,860

20,820

341,100

Note.- Shifting-control method used Jan. 16 to Mar. 27, May 7-27.
170 SKAGIT RIVER BASIN

Cascade River at Marblemount, Wash.

Location.- Water-stage recorder, lat. 48°31'4S", long. 121°23'30", in SW£ sec.- 9, T. 35 

M., H. HE., 2 miles east of Marbl^.ount and 2-| miles upstream from mouth.

Drainage area.- 180 square miles.

Records available.- September 1928 to September 1948.

Average discharge.- 20 years, 958 second-feet.

Extremes.- Maximum discharge during year, 11,000 second-feet Oct. 19 (gage height, 9.33 

feet); minimum, 293 second-feet Feb. 12, 13, 14 (gage height, 1.80 feet).

1928-48: Maximum discharge, 12,900 second-feet Feb. 26, 1932 (gage height, 9.88 

feet); minimum, 149 second-feet Nov. 15, 1929, but may have been less during January 

or February 1929, when stage-discharge relation was affected by ice; minimum gage 

height, 1.11 feet Feb. 8, 1937.

Remarks.- Records good except those above 3,500 second-feet and those below 300 secondfeet, which are fair. No diversion or regulation.

Revisions (water years).- W 832: 1936.

Rating table, water year 1947-48 (gage height, in fe 

and discharge, in second-feet)

2.0 

2.3 

2.6 

3.0

293

353

452

568

751

3.5 

4.0 

4.5 

5.0 

5.5

1,010

1,340

1,730

2,200

2,760

6.0 

6.5 

7.0

7.6

3,450

4,260

5,200

6,520

Discharge, in seoond-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

548 

2,280 

2,360 

1,670 

1,070

751 

611 

568 

656 

568

508 

488 

695 

568

1,080

1,280 

1,250 

2,410 

6,280 

2,040

1,380 

1,070 

925 

825 

974

1,500 

950 

850 

751 

703 

815

Nov.

1,130 

925 

825 

727 

680

680 

963

1,380 

1,040 

980

950 

825

850 

776 

703

656 

703 

703 

634 

590

548 

527 

508 

488 

653

1,200 

925 

825

ne

751

Dec.

776 

703 

703 

634 

590

548 

527 

488 

488 

452

452 

438 

669

680 

634

671 

1,270 

1,340 

1,130 

925

825 

776 

1,080 

1,530 

1,340

1,200 

1,410 

1,450 

1,160 

980 

900

Jan.

980 

980 

850

800 

703

727 

7?7 

680 

634 

611

590 

527 

508 

508 

488

470 

452 

452 

442 

435

432 

452 

548 

568 

527

488 

452 

438 

432 

418 

402

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Maro 

Apr! 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1941 

ary

1 ................... .....

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

ter year 1947-48 ..........

Feb.

388 

372 

366 

353

341

322 

322

331 

322 

310

299 

293 

293 

305 

344

328 

445 

611 

488 

445

435 

508 

470 

452 

449

611 

590 

527 

488

Secondfoot-days

38,424 

23,921 

26,769

400,937

17,721 

11,808 

11,889 

21,642 

62,805 

102,390 

47,310 

34,378 

22,483

421,540

Mar

470 

438

418 

402

332

382 

375 

369 

356 

347

338 

531 

331 

325 

319

316 

313 

319 

319 

310

368 

508 

432 

402 

395

379 

379 

428 

488 

470 

470

Maximum

6,280 

1,380 

1,530

6,280

980 

611 

508 

1,410 

6,520 

5,840 

2,100 

1,570 

1,230

6,520

Apr

452 

452 

452 

435 

418

402 

392 

382 

388 

388

388 

375 

372 

379 

487

1,180 

1,130

1,010 

980 

1,040

1,270 

1,410 

1,300 

1,200 

1,100

925 

825 

751 

703 

656

May

611 

568 

634 

656 

656

1,120 

1,200 

1,040

380 

925

925 

950 

1,130 

1,070 

1,010

1,130 

1,410 

1,340 

1,240 

1,810

2,640 

2,640 

2,250 

2,680 

3,700

4,720 

5,400 

6,520 

5,100 

3,520 

3,230

Minimum

488 

488 

438

356

402 

293 

310 

372 

568 

2,100 

1,130 

875 

527

293

June

3,300 

3,450 

3,760 

3,300 

3,760

4,620 

5,620 

5,620 

5,400 

5,840

4,810 

3,520 

3,160 

2,960 

2,890

3,020 

3,090 

2,640 

2,700 

2,820

3,840 

2,820 

2,410 

2,360 

2,150

2,100 

2,200 

2,700 

2,890 

2,640

Mean

1,239 

797 

864

1,098

572 

407 

384 

721 

2,026 

3,413 

1,526 

1,109 

749

1,152

July

2,100 

1,730 

1,78O 

1,730 

1,490

1,690 

1,730 

1,410 

1,340 

1,490

1,490 

1,340 

1,300 

1,450 

1,650

1,820 

1,860 

1,780 

1,570 

1,490

1,450 

1,530 

1,490 

1,270 

1,130

1,130 

1,590 

1,410 

1,240 

1,380 

1,450

Per 

square 

mile

6.88 

4.43 

4.80

6.10

3.18 

2.26 

2.13 

4.01 

11.3 

19.0 

8.48 

6.16 

4.16

6.4O

Aug.

1,450 

1,450 

1,380 

1,570 

1,200

1,100 

925 

950 

980 

980

900 

875 

875 

900 

1,260

950 

925 

950 

950 

993

1,200 

1,100 

95.0 

1,100 

1,380

1,240 

1,340 

1,380 

1,130 

1,070 

925

Sept.

825

910 

1,040 

825 

703

634 

634 

656 

703 

703

680 

656 

656 

680 

980

776 

850 

634 

548 

527

657 

1,230 

850 

703 

611

656 

703 

900 

850 

703

Runoff

100*163

7.94 

4.94 

5.53

82.83

3.66 

2.44 

2.46 

4.47 

12.98 

21.15 

9.77 

7.10 

4.65

87.09

Peak discharge (base, 3,600 sec. -ft.).- Oct. 19 (2:30 a.m.) 11,000 sec. -ft. j May 2E (7

Acre feet

76,210 

47,450 

53,100

795,300

35,150 

23,420 

23,580 

42,930 

124,600 

203,100 

93,840 

68,190 

44,590

836,200

a.m.) 7,240
SKAGIT RIVER BASIN 171

Sauk River above Whitechuck River, near Darrlngton, Wash.

Location.- Water-stage recorder, lat. 48°10'00", long. 121°27'45". In NW£ ssc. 24, T. 31 

N., K. 10 E., half a mile upstream from Whitechuck River and 9§ miles southeast of 

Darrlngton.

Drainage area.- 152 square miles.

Records available.- August to November 1910 (fragmentary gage heights), October 1917 to 

September 1922, August 1928 to September 1948.

Average discharge.- 25 years (1917-22, 1928-48), 1,076 second-feet.

Extremes.- Maximum discharge during year, 13,500 second-feet Oct. 19 (gage height, 9.68 

reet), from rating curve extended above 6,200 second-f«et; minimum, 263 second-feet 

Oct. 1 (gage height, 2.26 feet).

1917-22. 1928-48: Maximum discharge, 23, OGi second-feet Dec. 12, 1921 (gage height, 

14.65 feet), from rating curve extended above 3,000 second-feet; minimum, 115 secondfeet Nov. 15, 16, 30, Dec. 1, 1936.

Remarks.- Records good except those for periods of no gage-height record, whi'-h arenorr. 

No diversion or regulation.

Revisions (water years).- W 752: 1932.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

373 

2,350 

3,780 

2,000 

1,250

919 

710 

680 

804 

764

695 

609 

623 

609 

1,200

2,000 

2,300 

3.O4O 

8,230 

3,040

2,000 

1,580 

1,380 

1,140 

1,060

1,340 

1,040 

1,020 

910 

910 

1,260

Nov.

1,810 

1,400 

1,210 

1,050 

946

937 

1,380 

2,700 

1,900 

1,900

2,100 

1,800 

1,700 

1,550 

1,450

1,300 

1,500 

1,700 

1,400 

1,200

1,100 

1,020 

970 

900 

1,050

1,900 

1,600 

1,300 

1,200 

1,100

Dec.

1,300 

1,050 

1,300 

1,000 

800

700 

660 

700 

600 

560

540 

493 

1,060 

1,080 

982

1,020 

2.O6O 

3,060 

1,630 

1,240

1,060 

946 

1,260 

1,940 

1,520

1,330 

1,580 

1,690 

1,360 

1,140 

1,070

Jan.

,470 

,630 

,340 

,090 

910

,030 

,130 

,020 

847 

838

748 

651 

609 

574 

553

518 

492 

460 

450 

434

440 

480 

567 

595 

553

518 

480 

460 

434 

414 

395

Month ff«

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

1 ......................... I

ember ..................... 1

Feb.

371 

360 

354 

348

331

304 

310 

325 

335 

399

383 

273 

268 

283

513

434 

804 

1,320 

964 

702

637 

1,120 

982 

740 

672

1,090 

1,110 

829 

695

ond-

-days

19,416 

13,073 

55,530

>2,035

3,030 

7,045 

5,471 

9,101 

»0,723 

5,940 

9,378 

1,304 

9,903

ter year 1947-48 .......... 478,804

Peak discharge (base, 4,000 sec. -ft.).- 0

sec. -ft. j ME 

Note.- No

ed range in

ly 28 (4 p.m.) 7,970 sec. -ft. 

gage-height record Nov. 8 to De 

stage and records for station n

Mar.

651 

595 

525 

499 

460

440 

438 

414 

389 

366

354 

336 

331 

331 

330

320 

320 

336 

325 

315

685

1,330 

748 

609 

567

518 

525 

595 

658 

651 

630

Maximum

8,230 

2,700 

2,060

8,230

1,630 

1,320 

1,330 

1,940 

7,740 

5,950 

3,060 

1,020 

1,460

8,330

Apr

630 

595 

574 

518 

480

454 

440 

421 

440 

480

473 

447 

447 

473 

677

,840 

,690 

,460 

,320 

,380

,690 

,940 

,870 

,750 

,520

,280 

,100 

982 

901 

829

May

773 

740 

901 

1,150 

1,120

1,960 

2,130 

1,750 

1,520 

1,400

1,330 

1,380 

1,810 

1,810 

1,630

1,750 

3,060 

2,000 

1,810 

2,060

3,040 

3,370 

2,820 

3,200 

4,300

5,130 

6,160 

7,740 

5,950 

4,220 

3,810

Minimum

373 

900 

492

354

395 

368 

315 

431 

740 

3,130 

838 

546 

371

368

June

3 

4 

4 

3 

4

4 

5 

5 

5 

5

4 

3 

3,

3,

3, 

3, 

2, 

2, 

2,

3, 

2, 

2, 

2, 

2,

3, 

2, 

2, 

2, 

3,

Mean

1,594 

1,436 

1,146

1,366

711 

588 

499 

970 

2,604 

3,531 

1,267 

687 

663

1,308

ct. 3 (10 a.m.) 4,570 sec. -ft

c. 11, Jan. 18-32; discharge 

ear Sauk.

890 

050 

570 

970 

050

750 

740 

950 

740 

330

750 

890 

500 

120 

900

120 

340 

750 

820 

750

130 

610 

330 

330 

200

130 

200 

610 

820 

610

July

3 

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,

Per 

square 

mile

10.5 

9.45 

7.54

8.33

4.68 

3.87 

3.28 

6.38 

17.1 

33.3 

8.34 

4.52 

4.36

8.61

06C 

69C 

63C 

58C 

36C

46C 

63C

33C 

33C 

38C

32C 

17C 

16C 

21C 

30C

39C 

46C 

46C 

24C

17C

14C 

16C 

09C 

964 

83£

83£ 

17C 

010 

919 

91S 

OOC

Aug.

1,020 

955 

883 

892 

796

764 

630

6£3 

630 

609

581 

553 

560 

609 

651

630 

546 

567 

658 

602

735 

688 

602 

588 

623

603 

756 

919 

732 

680 

630

Sept.

553 

518

780 

672 

553

486 

440 

434 

428 

428

414 

408 

3/7 

371 

986

901 

718 

567 

499 

447

787 

1,460 

1,070 

820 

702

740 

820 

919 

865 

740

Runoff

Inches

12.09 

10.54 

8.69

113.06

5.39 

4.17 

3.79 

7.12 

19.75 

£5.92 

9.61 

5.21 

4.87

117.15

Acre-feet

98,020 

85,430 

70,450

916,400

43,700 

33,810 

30,690 

57,720 

160,100 

210,100 

77,910 

42,260 

39,480

949,700

.; Oct. 19 (5 a.m.) 13,500 

computed or basis of record-
172 SKAGIT RIVER BASIN

 Sauk River near Sauk, Wash.

Location.- Water-stage recorder / lat. 48°25il5", long. 121°33'45", in NW£ sec. 19, T. 34 

JM. , K. 10 E., 5 miles upstream from mouth, 5 miles southeast of Sauk, and 8 miles 

downstream from Suiattle River. .Datum of gage is 226 feet above mean sea level (riverprofile survey).

Drainage area.- 714 square miles.

Records available.- July 1928 to September 1948. 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.- 20 years (1928-48), 4,026 second-feet.

Extremes.- Maximum discharge during year, 35,900 second-feet Oct. 19 (gage height, 11.74 

feet); minimum not determined, probably occurred Oct. 1 when intakes were plugged.

1910-12. 1928-48: Maximum discharge, 68,500 second-feet Feb. 26, 1932 (gage height, 

15.83 feet); minimum, 572 second-feet Dec. 5, 1929, but may have been less during 

period of ice effect Jan. 10-27, 1930.

Remarks.- Records good except those for period of plugged intakes, which are fair. No 

diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 19'9

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

el, 400 

e3,500 

5,620 

5,240

4,170

3,320 

2,830 

2,460 

2,280 

2,280

2,110 

1,880

2,030 

2 , 050 

3,100

4,750 

5,490 

6,850 

22,700 

8,710

6,160

4,870 

4,400 

3,840 

3,630

4,400 

3,630 

3,520 

3,220 

3,220 

3,740

Nov.

4,990 

4,060 

3,950 

3,740 

3,320

3,320 

4,400 

6,710 

5,120 

5,120

5,490 

4,870 

4,630 

4,280 

3,950

3,630 

3,950 

4,280 

3,740 

3,420

3,220 

3,020 

2,830 

2,740 

2,920

4,630 

4,280 

3,840 

3,630 

3,520

Dec.

3,740 

3,520 

3,740

3,420 

3,120

2,830 

2,740 

2,830 

2,550

2,460

2,460 

2,280 

3,580 

4,170 

3,840

3,950 

6,160 

6,020 

5,360 

4,990

4,400 

4,170 

4,630 

6,570 

6,290

5,360 

5,880 

6,020 

5,360 

4,510 

4,280

Jan.

5,490 

6,570 

5,620 

4,990

4.17U

T.510 

4,750 

4,750 

4,060 

1,170

3,740 

3,320 

3,020 

2,920 

2,830

2,740 

2,640 

2,640 

2,550 

2,460

2,460 

2,640 

3,220 

3,420

3,020

2,740 

2,640 

2,460 

2,370 

2,370 

2,280

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber . ... ............

lendar year 1947 .........

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

st ........................

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

ter year 1947-48 .....

Feb.

2,230 

2,110 

2,000 

1,970

1,880

1,720 

1,740 

1,880 

1,940 

1,830

1,740 

1,740 

1,710 

1,820 

2,740

2,460 

4,630 

6,290 

4,170 

3,220

3,020 

5,120 

4,280 

3,420 

3,320

5,360 

4,870 

3,840 

3,250

Secondfoot-days

137,400 

121,600 

131,230

1,626,960

107,560 

86,270 

73,340 

104,160 

260,740 

378,300 

171,530 

107,530 

81,090

1,760,750

Mar.

2,920 

2,740 

2,550 

2,370 

2,160

2,060 

2,060 

2,030 

2,010 

1,940

1,890 

1,840 

1,860 

1,820 

1,740

1,640 

1,580 

1,720 

1,840 

1,830

2,790 

5,620 

3,520 

2,830 

2,550

2,280 

2,210 

2,550 

2,920 

2,830 

2,640

Maximum

22,700 

6,710 

6,570

22,700

6,570 

6,290 

5,620 

6,160 

25,600 

22,200 

8,360 

4,750 

4,510

25,600

Apr.

2,640 

2,640 

2,640 

2,370 

2,160

1,950 

1,900 

1,880 

1,900

2,000

1,980 

1,940 

2,010 

2,060 

2,640

6,020 

5,880 

4,990 

4,510 

4,510

5,360 

6,160 

6,160 

5,750 

5,120

4,280 

3,630 

3,320 

3,020 

2,740

May

2,550 

2,370 

2,740 

3,630 

3,740

6,600 

7,140 

5,750 

5,120 

4,750

4,630 

4,510 

5,620 

5,750 

5,120

5,240 

6,020 

5,880 

5,360 

6,020

8,680 

9,680 

8,360 

9,680 

13,000

16,400 

20,700 

25,600 

21,200 

15,500 

13,400

Minimum

1,400 

2,74O 

2,280

1,280

2,280 

1,710 

1,580 

1,880 

2,370 

8,050 

3,950 

2,830 

1,950

1,400

June

13,400 

13,800 

15,500 

14,200 

14,200

16,800 

20,200 

21,200 

20,700 

22,200

18,200 

14,200 

12,200 

10,700 

10,400

10,400 

11,100 

9,680 

9,340 

9,340

10,700 

9,680 

8,680 

8,680 

8,360

8,050 

8,360 

9,010 

9,680 

9,340

Mean

4,432

4,053 

4,233

4,457

3,470 

2,975 

2,366 

3,472 

8,411 

12,610 

5,533 

3,469 

2,703

4,811

July

8,360 

7,000 

6,850 

6,850 

6,020

6,160 

6,570 

5,620 

5,120 

5,490

5,620 

5,240 

5,120 

5,360 

5,750

6,16O 

6,290 

6,290 

5,490 

5,240

5,120 

5,240 

4,990 

4,510 

3,950

3,950 

4,990 

4,750 

4,280 

4,400 

4,750

Per 

square 

mile

6.21 

5.68 

5.93

6.24

4.86 

4.17 

3.31 

4.86 

11.8 

17.7 

7.75 

4.86 

3.79

6.74

Aug.

4,750 

4,750 

4,400 

4,750 

4,170

3,740 

3,220 

3,120 

3,220 

3,220

3,120 

3,020 

2,920 

3,020 

3,320

3,220 

2,830 

3,020 

2,920 

2,920

3,420 

3,520 

3,020 

3,120 

3,520

3,420 

3,520 

4,170 

3,630 

3,420 

3,120

Sept.

2,740 

2,550 

3,320 

3,020 

2,640

2,370 

2,260 

2,250 

2,280 

2,280

2,280 

2,230 

2,180 

2,180 

3,590

3,520 

2,830 

2,370 

2,090 

1,950

2,360 

4,510 

3,420 

2,830 

2,280

2,550 

2,830 

3,320 

3,320 

2,740

Runoff

Inches

7.16 

6.33 

6.84

81.74

5.60 

4.49 

3.82 

5.43 

13.58 

19.70 

8.93 

5.60 

4.22

91.70

Acre-feet

272,500 

241,200 

260,300

3,227,000

213,300 

171,100 

145,500 

206,600 

517,200 

750,300 

340,200 

213,300 

160,800

3,492,000

Peak discharge (base, 12,000 sec. -ft.).- Oct. 19 (7 a.m.) 35,900 sec. -ft.; May 28 (11:45 a.m.)

/,4uu sec.-it.; June lu ^b to b a.m.j zs.uuu sec.-re. 

e Intakes plugged; discharge computed on basis of records for nearby stations.
SKAGIT RIVER BASIN 173

Suiattle River near Mansford, Wash.

Location.- Water stage recorder, lat. 48°21'50", long. 121°29'30", in Nj sec. 10, T. 33 

N., R. 10 E., 2-f miles downstream from Big Creek and 4 miles north of Mansford.

Drainage area.- 335 square miles.

Records available.- July 1938 to September 1948.

Average discharge.- 10 years, 1,716 second-feet.

Extremes.- Maximum discharge during year, 18,000 second-feet Oct. 19 (gage height, 12.33 

feet); minimum, 622 second-feet Feb. 14 (gage height, 3.87 feet).

1938-48: Maximum discharge, 19,200 second-feet Oct. 25, 1946 (gage height, 12.86 

feet); minimum, 413 second-feet Oct. 13, 1942.

Remarks.- Records good. No diversion or regulation.

Rating table, water year 1947-48, except period of faulty intake action

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 19 to Dec. 5.)

3.9 

4.2 

4.5 

5.0

5.5

645

800

980

1,340

1,840

6.0 

6.5 

7.0 

7.5 

8.0

2,410

3,050

3,810

4,660

5,580

8.6 6,780

9.0 7,640

10.0 10,200

11.2 13,800

Discharge, in second-feet, water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

e8oO

2,500

3,880

2,350

1,730

1,300

1,120

1,050

1,120

1,120

1,020

980

1,150

1,080

1,560

1,950

2,170

3,510

9,540

3,570

2,590

2,120

2,000

1,780

1,840

2,350

1,840

1,730

1,580

1,460

1,680

Nov.

2,170

1,840

1,680

1,580

1,460

1,530

2,200

3,190

2,410

2,410

2,410

2,060

2,000

1,780

1,680

1,580

1,730

1,680

1,580

1,460

1,380

1,340

1,300

1,260

1,530

2,650

2,230

2,000

1,900

1,780

-

 Dec.

1,900

1,780

1,780

1,630

1,530

1,380

1,340

1,300

1,300

1,220

1,220

1,150

1,580

1,580

1,460

1,580

2,590

2,720

2,350

1,950

1,780

1,630

1,950

2,590

2,350

2,120

2,290

2,290

2,060

1,680

1,680

Jan.

2,060

2,170

1,840

1,730

1,530

1,630

1,630

1,530

1,380

1,380

1,300

1,190

1,150

1,120

1,080

1,020

980

950

920

920

920

1,020

1,260

1,260

1,120

1,050

980

950

920

890

860

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..... . . .

Feb.

830

800

772

772

720

694

694

720

694

670

645

645

645

670

772

745

1,080

1,340

1,050

950

950

1,260

1,120

1,050

1,050

1,630

1,380

1,190

1,120

-

-

Secondfoot-days

64,470

55,800

55,760

741,373

38,740

26,658

25 523

38 ,291

119,980

212 740

94^470

56,870

34,270

823,572

Mar.

1,050

980

920

890

860

860

830

800

772

74E

745

720

720

694

694

670

645

694

694

670

830

1,150

920

860

830

800

800

890

980

920

890

Maximum

9,540

3,190

2,720

9,540

2,170

1,630

1,150

2,410

13,800

13,500

4,480

2,650

1,630

13,800

Apr.

890

860

860

800

772

745

745

720

745

745

720

694

694

694

937

2,120

1,840

l,68t>

1,630

1,730

2,170

2,410

2,230

2,120

1,900

1,630

1,420

1,340

1,260

1,190

-

May

1,120

1,080

1,190

1,220

1,220

2,120

2,230

1,900

1,840

1,730

1,730

1,730

2,060

1,900

1,840

2,060

2,410

2,350

2,170

2,840

4,310

4,660

3,970

4,840

6,370

8,100

10,200

13,800

11,400

8,600

6,990

Minimum

800

1,260

1,150

670

860

645

645

694

1,080

4,400

2,230

1,420

860

645

June

6,780

6,780

7,640

6,780

7,200

8,850

11,700

11,700

12,000

13,500

11,100

8,350

7,200

6,370

5,770

6,170

6,370

5,390

5,390

5,390

6,570

5,390

4,840

4,840

4,480

4,400

4,660

5,580

5,970

5,580

-

Mean

2,080

1,860

1,799

2,031

1,250

919

823

1,276

3,870

7,091

3,047

1,835

1,142

2,250

July

4,480

3,810

3,810

3,650

3,120

3,490

3,490

2.98C

2,84C

3.12C

3,05C

2.78C

2.78C

2.98C

3.19C

3,49C

3.65C

3,49C

3.12C

2.91C

2,84C

2,91C

2,84C

2.47C

2,23C

2,23C

2,78C

2.53C

2.29C

2,47C

2,65C

Per

square 

mile

6.21

5.55

5.37

6.06

3.73

2.74

2.46

3. 31

11.6

21.2

9.10

5.48

3.41

6.72

Aug.

2,650

2,6

2,4

2,5

50

10

90

2,230

1,950

1,6

1,6

1,7

30

30

30

1,730

1,630

1,5

1,5

1,5

30

30

30

1,950

1,580

1,4

1,5

1,5

30

30

30

1,460

1,780

1,7

1,5

1,7

50

30

50

2,060

1,840

1.9C 2,1'

1,7!

1,7.

)0

0

iO

50

1,530

Sept

1,340

1,300

1,630

1,260

1,150

1,080

1,050

1,080

1,150

1,150

1,190

1,150

1,150

1,150

1,420

1,120

1,080

920

890

860

980

1,420

1,080

950

860

1,050

1,120

1,380

1,260

1,050

Runoff

Inches

7.16

6.19

6.19

82.30

4.30

2.96

2.83

4. 25

13.32

23 . 62

10.49

6.31

3.80

91.42

Acre-feet

127,900

110,700

110,600

1,470,000

76,840

52 , 880

50,620

75,950

422 ,000

187,400

112 800

67^970

1,634,000

Peak discharge (base, 5,000 see.-ft.).- Oct. 19 (3 a.m.) 18,000 sec.-ft.; May 2F (8 a. 

sec.-ft.; June 10 (1:30 a.m.) 17,000 sec.-ft.

e Intakes plugged; discharge computed on basis of records for nearby streams.
174 SKAGIT RIVER BASIN

Baker River at Concrete, Wash.

Location - Water-stage recorder, lat. 48°33', long. 121°45', in NVfij sec. 11, T. 35 N., 

K. H 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 1948.

Extremes.- Maximum discharge daring year, 23,000 second-feet Oct. 18 (gage height, 13.40 

t'eet); minimum, 39 second-feet Mar. 28, Apr. 18, 19 (gage height, 0.53 foot); minimum 

dally, 446 second-feet Feb. 15.

1910-15, 1943-48: Maximim discharge observed, 24,500 second-feet Jan. 6, 1914 

(estimated to have been 31,000 second-feet later on same day); minimum, 26 second-feet 

Apr. 22, 1945 (gage height, 0.60 foot); minimum daily, 304 second-feet Nov. 28, 1943.

Remarks.- Records good between 1,000 and 11,000 second-feet, others fair. No diversions 

which are not returned to river above gage. Flow regulated by Baker River power plant 

and Lake Shannon (see p. 162).

Cooperation.- Co"! Gage-height record for Lake Shannon furnished by Puget Sound Power & Light 

Ratine tatle, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

2.5 445 

3.0 630 

3.5 860 

4.0 1,160 

4.5 1,500

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.

1,380 

1,990 

6,080 

7,300 

3,090

2,350 

2,350 

2,140 

1,830 

1,830

1,740 

1,190 

1,670 

1,650 

6,010

6,890 

5,730 

7,760 

15, BOO 

4,810

2,360

2,660 

2,670 

2,440 

2,560

4,040 

2,420 

2,400 

2,430 

2,420 

4,960

Nov.

6,810 

3,440 

3,070 

2,480 

2,470

a2,170 

a2,500 

a3,030 

a2,470 

a2,540

2,480 

2,370 

2,430 

2,450 

2,440

2,460 

2,480 

2,190 

2,070 

2,050

1,910 

1,760 

1,590 

1,740 

1,790

1,760 

1,410 

1,700 

1,550 

1,450

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wat

endar year 1947

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

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

er year 1947-48

Dec.

1,640 

1,770 

1,770 

1,820 

1,740

1,690 

1,510 

1,760 

1,800 

1,700

1,460 

1,180 

1,660 

2,360 

1,840

1,870 

3,820 

5,240 

3,490 

2,780

2,590 

2,550 

6,320 

7,680 

4,320

3,710 

a5, 600 

a6,050 

a3,920 

a3,020 

a3,140

Jan.

a4,710 

3,760 

3,130 

2,780 

2,370

2,370 

2,350 

2,330 

2,370 

2,180

2,070 

al,770 

al,310 

al,210 

1,820

1,880 

1,700 

840 

1,600 

1,440

1,460 

1,470 

1,560 

908 

529

1,570 

1,420 

1,440 

1,420 

1,430 

826

5.0 1,910 9.0 7,960 

5.5 2,370 10.0 .11,400 

6.0 2,880 11.2 15,800 

7.0 4,080 

8.0 5,610

water year October 1947 to September 1948

Feb.

463 

1,150 

1,T20 

787 

843

915 

967 

612 

1,380 

1,010

1,340 

1,270 

1,220 

1,230 

446

1,700 

2,130 

1,980 

2,160 

1,970

1,940 

1,740 

1,840 

1,820 

1,890

1,880 

1,850 

1,790 

1,650

Mar.

1,900 

1,910 

,860 

,780 

,720

,700 

,630 

,650 

,680 

,740

1,830 

1,790 

1,730 

1,660 

1,830

1,630 

1,620 

1,560 

1,610 

1,600

1,190 

1,770 

1,720 

1,790 

1,660

1,740 

1,510 

1,060 

1,650 

1,710 

1,770

Observed

Discharge in 

second feet

Maximum

15,800 

6,810 

7,680

15,800

4,710 

2,160 

1,910 

1,860 

11,000 

10,700 

4,030 

3,990 

4,230

15,800

Minimum

1,190 

1,410 

1,180

332

529 

446 

1,060 

1,020 

1,530 

3,820 

2,140 

1,520 

1,590

446

Mean

3,708 

2,369 

2,961

2,635

1,872 

1,424 

1,677 

1,667 

3,850 

6 , 156 

3,003 

2,459 

2,199

2,783

Runoff 

in 

acre-feet

228,000 

140,900 

182,100

1,907,320

115,100 

81,900 

103,100 

99,210 

236,700 

366,300 

184,600 

151,200 

130,800

2,020,000

Apr.

1,760 

1,770 

1,540 

1,160 

1,710

1,740 

1,780 

1,860 

1,770 

1,710

1,020 

1,660 

1,630 

1,740 

1,690

1,700 

1,550 

1,210 

1,710 

1,750

1,730 

1,700 

1,750 

1,720 

1,700

,740 

,770 

,810 

,840 

,800

May

1,740 

1,530 

1,730 

1,810 

1,790

1,810 

1,830 

1,830 

1,650 

1,780

1,950 

1,890 

1,870 

1,950 

2,450

2,310 

2,470 

2,300 

2,490 

2,500

4,530 

5,980 

6,400 

5,440 

6,400

8,560 

10,700 

11,000 

8,880 

6,180 

5,610

Change in

In Lake 

Shannon 

Reservoir 

(acre-feet)

+9,930

-6,030 

+6,550

+2,930

-9,450 

-7,710 

-37,210 

+13,770 

+32,880 

+5,820 

+1,650 

-90 

-680

+9,430

June

5,790 

5,980 

6,400 

6,340 

7,400

7,960 

10,700 

10,300 

9,560 

10,700

9,220 

7,140 

5,980 

5,110 

4,800

4,950 

5,110 

4,950 

4,950 

4,950

5,110 

5,270 

4,500 

3,820 

3,820

3,820 

3,950 

4,800 

6,020 

5,270

July

4,030 

3,390 

2,960 

3,370 

3,030

a3,090 

a3,470 

a2,810 

a2,600 

a2,860

a2,770 

a2,560 

2,550 

2,740 

3,140

3,730 

3,690 

3,910 

3,600 

3,010

2,970 

2,960 

3,030 

2,400 

2,410

2,210 

3,190 

2,970 

2,140 

2,620 

2,870

Aug.

2,930 

2,950 

2,600 

3,000 

2,940

2,070 

2,130 

1,520 

1,990 

2,060

2,000 

1,970 

2,080 

1,900 

1,720

1,860 

1,960 

1,900 

1,810 

1,960

2,450 

3,990 

2,690 

2,820 

3,190

2,940 

2,940 

3,080 

2,390 

3,200 

3,200

Adjusted for 

reservoir c

Runoff 

in 

acre-fee

Sept.

2,400 

2,820 

4,230 

3,190 

2,420

2,240 

1,940 

1,990 

2,020 

1,850

1,770 

1,590 

1,850 

1,820 

1,910

2,280 

2,180 

2,410 

2,060 

1,940

1,850 

1,860 

2,570 

2,390 

2,130

1,750 

1,680 

1,820 

2,610 

2,390

change in 

ontents

Discharge in 

secord-feet

1 Mean

237,900 3,86? 

134,900 2,267 

188,600 3,067

1,910,000 2,63?

105,600 1,717 

74,190 1,29C 

65,890 1,072 

113,000 l,89f 

269,600 4,385 

372,100 6,253 

186,200 3,026 

151,100 2,457 

130,100 2,186

2,029,000 2,795

Per 

square 

mile

14.3 

8.40 

11.4.

9.77

6.36 

4.78 

3.97 

7.03 

16.2 

23.2 

11.2 

9.10 

8.10

10.4

Runoff

inches

16.52 

9.37 

13.10

132.66

7.33 

5.15 

4.58 

7.85 

18.72 

25.84 

12.93 

10.49 

9.03

140.91

a No gage-height record: discharge 

plant records.

computed by Puget Sound Power & Light Co. »n basis of power-
SKAGIT RIVER BASIN 175

Finney Creek near Concrete, Wash.

Location.- Water-stage recorder, lat. 48°31', long. 121°49', in sec. 19, T. 35 N., R. 8

 E., 1? miles upstream from mouth and 3 miles southwest of Concrete.

Drainage area.- 55 square miles.

Kecoras available.- July 1943 to October 1948 (discontinued).

Extremes - Maximum discharge during period October 1947 to October 1948, 4,300 secondreet Oct. 19, 1947 (gage height, 6.52 feet); minimum, 41 second-feet Aug. 13 (gage

height, 0,79 foot).

1943-48 Maximum discharge, that of Oct. 19, 1947; minimum recorded, 16 second-feet

Oct. 8, 9, 1943, Aug. 22, 23, 24, 1945. 

Remarks.- Records good. No diversion or regulation.

Discharge, In second-feet, 1947-48 

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.

73

429

633

545

326

247

208

195

233

217

192

167

167

164

1,050

1,220

1,240

1,590

2,310

871

556

429

429

364

318

351

283

£98

£64

343

659

Nov.

905

664

464

396

360

405

764

938

539

568

528

410

444

391

334

302

391

419

334

298

257

230

208

189

247

356

294

261

240

233

-

Dec.

272

240

287

257

230

195

181

170

172

156

164

167

508

474

449

620

1,480

1,080

726

469

419

479

1,210

1,170

720

534

873

885

545

405

539

Jan.

1,200

975

627

562

429

512

517

545

439

424

368

310

283

257

230

214

204

195

186

181

175

211

347

338

279

243

217

195

i84

172

1,56

Feb.

154

149

144

137

128

124

124

135

130

117

115

115

115

137

276

240

760

784

449

338

330

701

528

400

382

651

539

419

347

_

-

Mar.

326

294

264

243

226

214

214

208

192

181

175

175

172

170

164

159

154

167

167

164

618

824

391

298

240

226

£14

£54

290

272

254

Apr.

237

226

237

208

192

181

184

178

189

198

195

192

195

192

240

474

439

391

368

382

485

523

603

597

506

400

334

298

272

247

-

May

226

214

322

364

373

1,080

739

496

405

356

330

338

539

615

496

479

539

474

429

528

688

639

517

597

771

857

857

1,010

752

603

591

June

568

579

633

523

528

585

645

609

568

501

459

386

360

318

290

334

360

298

287

294

322

276

247

223

211

198

192

192

192

175

-

July

154

135

124

126

117

128

132

119

105

101

97

92

84

79

79

77

76

88

86

77

71

68

60

57

56

55

113

83

69

60

57

Aug.

53

52

48

57

53

57

50

47

44

43

43

42

41

45

45

47

42

42

42

44

111

124

88

119

146

137

175

192

139

152

130

Sept.

113

119

268

178

142

124

113

105

95

90

84

81

76

76

181

172

119

103

93

86

113

347

257

192

156

167

181

318

298

2 £3

-

Peak discharge (base, 2,000 see.-ft.).- Oct. 19 (12:30 a.m.) 4,300 sec.-ft.; Dec. 17 (6 a.m.) 

2,100 sec.-ft.j Dec. £3 (9 p.m.) 2,530 sec.-ft.

Day

Oct. 1 

2 

3 

4 

5

Discharge

181 

156 

142 

619 

439

Day

Oct. 6 

7 

8 

9 

10

Discharge

360 

6£1 

405 

302 

254

Day

Oct. 11

12 

13 

14 

15

Discharge

233 

195 

175 

159 

142

Monthly discharge, In second-feet, 1947-48

Month

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

Uav

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

Water year 1947-48 ..........

October 1 15, 1948. ............

Secondfoot-days

16,371 

12,369 

16,066

115,779

11,165 

8,968 

7,910 

9,363 

17,224 

11,353 

2,825 

2,450 

4,670

120,734

4,383

Maximum

2,310 

938 

1,480

2,730

1,200 

784 

824 

603 

1,080 

645 

154 

192 

347

2,310

621

Minimum

73 

189 

156

42

156 

115 

154 

178 

214 

175 

55 

41 

76

41

142

Mean

528 

412 

518

317

360 

309 

255 

312 

556 

378 

91.1 

79.0 

156

330

292

Per 

square 

mile

9.60 

7.49 

9.42

5.76

6.55 

5.62 

4.64 

5.67 

10.1 

6.87 

1.66 

1.44 

2.84

6.00

5.31

Runoff

Inches

11.07 

8.36 

10.86

78.27

7.55 

6.06 

5.35 

6.33 

11.65 

7.68 

1.91 

1.66 

3.16

81.64

2.96

Acre feet

32,470 

£4,530 

31,870

229,600

22,150 

17,790 

15,690 

18,570 

34,160 

22,520 

5,600 

4,860 

9,260

239,500

8,690
176 SKAGIT RIVER BASIN

Alder Creek near Hamilton, Wash.

Location.- Water-stage recorder, lat. 48°32', long. 121°57', in N| sec. 18, T. 35 N., R. 

YE., at railroad trestle, three-quarters of a mile upstream from mouth and 2 miles 

east of Hamilton.

Drainage area.- 8.8 square miles.

Records available.- August 1943 to September 1948.

Extremes.- Maximum discharge during year, 241 second-feet Oct. 19 (gage height, 2.57 feet), 

1'rom rating curve extended above 70 second-feet; minimum, 9.8 second-feet Sept. 21, 25, 

26.

1943-48: Maximum discharge, 458 second-feet Jan. 7, 1945 (gage height, 4.28 feet, 

datum then is use), from rating curve extended above 70 second-feet; minimum, 6.3 

second-feet Sept. 4-12, 1944.

Remarks.- Records good except those above 70 second-feet and for periods of shifting control, which are fair. No diversion or regulation.

Rating table, water year 1947-48, except periods of shifting control 

(gage height. In feet, and discharge, In second-feet)

1-1 7.0

1-3 16.5

1-5 33

1.7 54

2.0 100

2.5 165

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

37 

29 

39 

27

22 

19 

19 

18 

16.5

16 

15.5 

18 

18 

33

45 

50 

73 

165 

91

63 

52 

46 

38 

32

31 

28 

27 

26 

31 

31

Nov.

46 

46 

45 

45 

43

66 

104 

118 

93 

118

104 

82 

95 

86 

72

59 

72 

64 

57 

50

42

39 

34 

30 

40

42

36 

32 

30 

29

Dec.

31

32 

50 

41 

36

32 

29 

28 

31 

29

32 

32 

45 

62 

89

84 

118 

132 

118 

73

79 

86 

87 

96 

79

70 

73 

73 

67 

59 

66

Jan.

124 

118 

108 

118 

95

91 

78 

80 

70 

74

70 

60 

53 

50 

45

41 

40 

38 

36 

34

32 

41 

72 

64 

55

48 

45 

41 

38 

35 

31

Feb.

28 

26 

25 

24

22

21 

20 

23 

22

20

19 

19 

19 

22 

30

30 

66 

76 

55 

46

50 

110 

102 

78 

73

104 

95 

79 

76

«°nth foo^s

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947

1

st ........................

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

166 

819 

959

483.5

925 

380 

384 

496 

421 

631.5 

480 

399.5 

357

ter year 1947-48 .......... 14,418.0

Mar.

64 

59 

53 

48 

46

43 

43 

41 

38 

36

35 

34 

33 

32 

31

31 

30 

33 

33 

33

47 

66 

54 

51 

53

51 

50 

52 

54 

52 

58

Maximum

165 

118 

132

257

124 

110 

66 

62 

110 

28 

19.5 

15 

17

165

Apr.

57 

57 

58 

53 

51

47 

47 

45 

45 

45

45 

45 

43 

43 

44

50 

52 

52 

51 

52

51 

51 

51 

57 

62

55 

51 

47 

46 

43

May

40 

39 

46 

47 

54

110 

87 

74 

66 

58

53 

51 

52 

48 

45

43

41 

40 

38 

36

35 

33 

33 

31 

30

28 

28 

36 

37 

33 

29

June

28 

26 

26 

25 

24

22 

22 

21 

21 

20

22 

20 

20 

19 

19

21 

22 

19 

19 

20

23 

22 

20 

19

19

19 

19

18

17 

17

Minimum Mean

10 37.6 

29 60.6 

28 63.2

9.8 36.9

31 62.1 

19 47.6 

30 44 . 6 

43 49.9 

28 45.8 

17 21.0 

13 15.5 

11 12.9 

10 11.9

10 39.4

.5 

.5

.5 

.5

.5

July

17 

16.5 

16.5 

16.5 

16.5

19.5 

18 

17 

16.5 

16

16 

15.5 

15.5 

15 

15

15 

14.5 

14.5 

15 

15

15 

15 

15 

14.5 

14.5

14.5 

15 

15 

14.5 

13 

13

Per 

square 

mile

4.27 

6.89 

7.18

4.19

7.06 

5.41 

5.07 

5.67 

5.20 

2.39 

1.76 

1.47 

1.35

4.48

Aug.

12 

12 

13 

13 

12.5

14 

12.5 

12 

12 

12

12 

12 

12 

12

12

12 

11.5 

11 

12

13

14 

13 

13 

15 

14.5

14 

14.5 

14

13 

15 

15

Sept.

14 

15

17 

14 

13

12 

12 

11.5 

11.5 

11

11 

11 

10.5 

11 

11.5

11 

10.5 

10 

10 

10

11.5 

12.5 

10.5 

10 

10

11 

12 

15.5 

14 

12.5

Runoff

Inches

4.93 

7.69 

8.28

56.99

8.14 

5.83 

5.85 

6.32 

6.01 

2.67 

2.03 

1.69 

1.51

60.95

Acre-feet

2,310 

3,610 

3.890

26,750

3,820 

2,740 

2,750 

2,97O 

2,820 

1,250 

952 

792 

708

28,610

FeaK aiscnarf?e lease, i*u sec.-rt.).- Oct. is (1-30 a.m.) 241 sec. -ft.: Dec. 18 (8:30 D.m.) 150 

sec. -ft.; Jan. 1 (7:30 p.m.) 158 sec. -ft.; Feb. 22 (l:3O p.m.) 145 sec. -ft. 

Note.- Shifting-control method used Jan. 24 to Feb. 29, June 21 to July 12, Sept. 3-15, 21-3O.
SKAGIT RIVER BASIN 177

Day Creek near Lyman, Wash.

Location.- Water-stage recorder, lat. 48°30<05", long. 122°02'40", in NW£ sec. 28, T. 35

 N., K, 6 E.,. at county highway bridge, three-quarters of a mile upstream from mouth 

and 2^ miles southeast of Lyman.

Drainage area.- 38.1 square miles.

Records available.- July 1943 to September 1948.

Extremes.- Maximum discharge during year, 4,420 second-feet Oct. 18 (gage height, 7.94

 f'eet); minimum, 24 second-feet Oct. 1.

1943-48: Maximum discharge, 4,530 second-feet Oct. 24, 1946 (gage height, 8.12 

feet); minimum discharge, 5.9 second-feet Feb. 1, 1945; minimum gage height, 0.64 foot 

Aug. 23, 24, 1945.

Remacks.- Records fair. No diversion or regulation

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

714 

808 

549 

256

178 

140 

132 

261 

168

139 

116 

140 

130 

1,600

1,040 

1,010 

1,260 

1,510 

514

328 

255 

334 

238 

230

274 

189 

220 

185 

672 

438

Nov.

642 

352 

287 

249 

233

418 

797 

714 

371 

540

400 

287 

419 

299 

233

198 

558 

378 

255 

202

176 

156 

142 

130 

252

271 

193 

165 

152 

159

Dec.

182 

164 

325 

198 

156

138 

127 

116 

123 

113

119 

130 

590 

322 

443

725 

1,280 

946 

472 

310

432 

458 

995 

768 

434

322 

1,050 

711 

394 

276 

772

Jan.

1,590 

840 

536 

468 

310

446 

410 

468 

310 

349

271 

208 

180 

168 

154

144 

136 

128 

126 

120

117 

175 

420 

276 

196

157 

139 

128 

126 

116 

109

Month

Octo 

Nove 

Dece

Ca

Jann 

Febi 

Hare 

Apr! 

Hay 

Juns 

July 

Angu 

Sept

Wa

lendar year 1947 

ary

smber .....................

tsr year 1947 48 ..........

Feb.

104 

99 

96 

95

87

70 

85 

126 

116 

100

88 

91 

82 

103 

249

198 

996 

640 

328 

236

285 

766 

381 

279 

402

924 

423 

290 

222

Secondfoot-days

14.057 

9,623 

13,591

96,903

9,321 

7,961 

6,267 

8,457 

15,998 

7,154 

1,879 

2,689 

6,014

103,016

Peak discharge (base, 3,000 sec. -ft.).- 0

4,420 sec. -ft.

Mar.

202

174 

156 

144 

138

133 

138 

134 

124 

117

114 

117 

138 

132 

123

117 

113 

123 

117 

117

882 

726 

328 

238 

200

174 

189 

230 

236 

200 

193

Maximum

1,600 

797 

1,280

2,310

1,590 

996 

882 

943 

1,360 

368 

136 

336 

860

1,600

Apr.

178 

178 

187 

159 

150

150 

163 

152 

178 

191

178 

167 

165 

170 

272

453 

356 

334 

293 

324

387 

457 

943

674 

476

313 

238 

208 

191 

172

May

163 

161 

622 

390

772

1,360 

564 

390 

328

276

257 

359 

1,050 

884 

497

489 

493 

387 

343 

427

510 

424 

365 

456 

573

573 

541 

840 

648 

449 

407

Minimum

29 

130 

113

25

- 109 

70 

113 

150 

161 

91 

34 

28 

49

28

June

365 

368 

368 

307 

304

334 

36H 

331 

301 

255

274 

236 

220 

325 

163

227 

310 

210 

176 

244

290 

196

163 

147 

134

124 

114 

112 

103 

91

Mean

453 

321 

438

265

301 

275 

202 

282 

516 

238 

60.6 

8S.7 

200

281

July

77 

72 

66 

70 

64

9J. 

136 

104 

81 

71

64 

61 

54 

51 

48

46 

43 

46 

48 

44

41 

40 

37 

35 

34

36 

108 

70 

54 

46 

41

Per 

square 

mile

11.9 

8.43 

11.5

6.96

7.90 

7.22 

5.30 

7.40 

13.5 

6.25 

JU59 

2,28 

5.25

7.38

Aug.

37 

35 

33 

37 

41

44

37 

34 

33 

30

30 

28 

29 

31 

35

49 

36 

34 

38

67

336 

205

117 

72 

191

159 

185 

170 

119 

230 

167

Sept.

114 

231 

359 

182 

133

105 

91 

77 

71 

64

57 

54 

49 

54 

693

276 

154 

120 

99 

86

214 

860 

374 

228 

168

187 

210 

329 

218 

157

Runoff

Inches

13.72 

9.40 

13.27

94.59

9.10 

7.77 

6.12 

8.26 

15.62 

6.98 

1.83 

2.62 

5.87

100 . 56

Acre-feet

27,880 

19,100 

26,960

192,200

18,490 

15,790 

12,430 

16,770 

31,730 

14,190 

3,730 

5_,330 

11,930

204,500

ct. 15 (7 p.m.) 3,400 sec. -ft.; Oct. 18 (10:30 p.m.)
178 SKAGIT RIVER BASIN

Coal Creek near Sedro Woo] ley, Wash.

Location.- Water-stage recorder, lat. 48°31'50", long. 122°09'00", in Sj sec. 10, T. 35 

N., K. 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 September 1948.

Extremes.- Maximum discharge during year, 384 second-feet Oct. 18 (gage height, 3.37 feet), 

from rating curve extended above 140 second-feet; minimum, 0.9 second-foot Oct. 1 (gage 

height, 1.44 feet) .

Remarks.- Records fair. No diversion or regulation.

Discharge, in second-feet, water year October 1347 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

fl 

fS 

18 

17.5 

5.9

4.9 

2.9 

2.7 

2.7 

2.2

2.2

1.7 

2.7 

2.6

11.5

19 

12 

65 

103 

20

12 

9.3 

9.8 

7.O 

6.2

7.0 

5.5 

4.9 

4.4 

7.4 

6.2

Nov.

15.5 

11.5 

10.5 

8.3

8.8

26 

72

41 

24

41

27 

20 

23

16.5 

12.5

10.5 

15 

14 

10.5 

8.8

7.4 

7.4 

5.5 

5.2 

12.5

15 

10.5 

8.3 

7.4 

7.0

Dec.

7.4 

7.4 

12 

8.8 

7.0

5.9 

5.5 

5.2 

5.9 

5.2

6.6 

7.4 

21 

16.5 

25

29 

42 

26

20 

14

14 

15 

19 

22 

16.5

13.5 

17.5 

21 

17.5 

12.5 

21

Jan.

34 

26

18 

20

14

18 

15.5 

15.5 

12 

10.5

8.8 

7.4 

6.6 

6.6 

5.5

5.2 

5.2 

4.9 

4.6 

4.4

4.1 

3.3 

48 

24 

15

11 

8.8 

7.4 

6.6 

5.9 

5.2

Feb.

4.6 

4.4 

4.1 

3.8 

3.4

2.9 

2.9 

3.4 

2.9 

2.7

2.6 

2.4 

2.6 

2.7 

2.9

3.4 

25 

18 

11 

7.9

8.8 

28 

20 

13.5 

15.5

32

21 

15 

12

UA**+VI Sscond 

Month foot-days

Octo 

Hove 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 

ary

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

st ........................

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

381.4 

502.6 

467.3

-

387 

279.4 

254.7 

304.1 

418.1 

231.8 

82.0 

145.3 

123.1

ter year 1947-48 .......... 3,576.8

Peak discharge (base, 1OO see. -ft. .- Oct.

June 21 (8:30 a.m.; 128 see. -ft. 

f Computed on basis of partly estimated gai

Mar.

11 

9.3

8.3 

7.4 

7.0

7.0 

7.0 

6.8 

6.2 

5.9

5.5 

5.5 

8.2 

5.9 

5.5

4.9 

4.9 

4.9 

4.4 

4.6

12 

18 

11.5 

10.5 

9.8

8.8 

11 

14 

12 

9.8 

9.3

Maximum

103 

72 

42

-

48 

32 

18 

18 

41 

48 

5.9 

29 

17.5

103

Apr.

8.8 

8.8 

9.3 

7.9 

7.4

6.6 

7.9 

7.9 

8.8 

7.9

7.9 

6.6 

6.6

8.8

15

18 

13.5 

12.5 

11.5 

12.5

14 

12 

12

15 

13.5

11 

8.8 

8.3 

8.3 

7.0

Hay

7.0 

7.0 

11 

11 

26

41 

20

15 

12

11

8.8 

9.8

11 

9.3 

8.8

11.5 

10.5 

8.8 

8.3 

11

12 

11 

9.8 

11 

12.5

12.5 

12.5 

24 

24

18 

12

June

9.8 

8.3 

7.9 

6.6 

5.2

4.9 

4.9 

4.4 

3.6 

3.2

4.4 

3.6 

4.4 

3.6 

2.7

6.2 

10.5 

6.2 

4.6 

7.9

48 

19 

12 

8.8 

7.0

5.9 

5.4 

4.6 

4.4 

3.8

July

3.4 

3.4 

2.9 

3.4 

2.9

5.5 

5.9 

4.4 

3.4 

2.7

2.7 

2.6 

2.4 

2.2 

2.0

1.9

1.9 

2.2 

2.6 

2.4

2.0 

1.9 

1.9 

1.7 

1.5

1.5 

2.9 

2.6 

2.0 

1.7 

1.5

Per 

Minimum Mean square 

mile

1 12.3 6.83 

5.2 16.8 9.33 

5.2 15.1 8.39

-

4.1 12.5 6.94 

2.4 9.63 5.35 

4.4 8.22 4.57 

6.6 10.1 5.61 

7.0 13.5 7.50 

2.7 7.73 4.29 

1.5 2.65 1.47 

1.0 4.69 2.61 

1.5 4.10 2.28

1.0 9.77 5.43

18 (10 p.m.) 584 see. -ft.! Nov. 7 (6 

Se-helght record.

Aug.

1.4 

1.4 

1.4 

1.7 

1.7

1.9 

1.5 

1.4 

1.4 

1.2

1.2 

1.2 

1.2 

1.4 

1.2

1.2 

1.0 

1.1 

1.9 

3.2

15 

11 

4.9 

9.8 

29

9.8 

8.3 

5.9 

4.4 

8.3 

9.3

Sept.

5.9 

7.4 

17.5 

8.3 

5.9

4.4 

3.6 

3.2 

2.7 

2.4

2.4 

r.G 

2.0 

2.0 

2.6

2.4 

2.0

1.7 

1.7 

1.5

2.4 

8.3 

3.8 

2.9 

2.6

2.9 

3.8 

6.2 

4.6 

3.4

Runoff

Inches Acre-feet

7.88 756 

10.38 997 

?.65 927

-

8.00 768 

f.77 554 

f.26 505 

6.28 603 

8.64 829 

4.79 460 

1.69 183 

3.00 288 

2.54 244

73.88 7,090

a.r.) 108 sec. -ft.;
SKAGIT RIVER BASIN 

3t Fork Nookachamps Creek near Clear Lake, Wash.

179

Location^- Staff gage, lat. 48°25'25", long. 122°12'45", in NE£ sec. 19, T. 34 N R 

SETTat highway bridge 3 miles south of Clear Lake and 3| miles upstream from mouth.

Drainage area.- 19.2 square miles.

Records available.- July 1943 to September 1948.

Extremes^- Maximum discharge during year, 2,220 second-feet Oct. 19 (gage height, 10.33 

reet,~from high-water mark on bridge pier); minimum observed, 2.5 second-feet Oct 1

1943-48: Maximum discharge, 2,710 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 fair except those for periods of doubtful gage-height record which are 

poor. poor. Gage Gage read read twice twice daily. daily Several small diversions for irrigation and municipal use.

Revisions (water years) .- W 1012: 1943.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.5

177 

157 

177 

59

30 

20 

24 

64 

39

29 

21 

17.5 

34 

294

500 

177 

665 

875 

120

67 

62 

98 

69 

54

67 

47 

31 

43 

101 

87

Nov.

220 

98, 

69 

84 

120

308 

735 

438 

532 

770

438 

268 

188 

177 

148

138 

335 

243

129 

92

86 

81 

76 

86 

243

103 

84 

71 

62 

60

Dec.

82 

268 

209 

177 

84

59 

55

51

44 

40

5& 

209 

129 

60 

148

188 

500 

308 

209 

82

90 

59 

209 

438 

198

120 

408 

268 

157 

100 

148

Jan.

438 

220 

177 

177 

198

157 

120 

129 

112 

97

89 

82 

72 

64 

59

52 

46 

43 

39 

36

34 

148 

532 

209 

129

112 

97 

86 

103 

112 

86

Mcnth

Octc 

NOVE

Dece

Cc

Jan vi 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augu 

Sept

We

mber ......................

lendar year 194 

ary .

st ........................

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

ter yearl947-48 ..........

Feb.

60 

57 

53 

46 

37

33 

32 

57 

58 

53

51 

46 

48 

54 

67

100 

294 

220 

148 

75

67 

120 

364 

157 

378

364 

349 

198 

138

Secondfoot-days

4,209 

6,482 

5,155

34,850.4

4,055 

3,724 

2,737 

2,619 

5,522 

3,909 

371.4 

1,461.6 

1,669.2

41,920.2

Mar.

1S8 

138 

138 

120 

87

68 

45 

38 

45 

43

43 

39 

38 

40 

38

40 

38 

44 

49 

59

364 

148 

120 

120 

112

103 

1OO 

93 

86- 

81 

72

Maximum

875 

77C 

500

1,080

532

378 

364 

232 

597 

438 

21 

198 

232

875

Apr.

62 

58 

60 

68 

78

82 

82 

82 

95 

74

68 

63 

59 

64 

138

112 

90 

78 

69 

66

58 

60 

66 

71 

74

167 

232 

167 

95 

81

May

71 

72 

82 

188 

469

597 

294

177 

103 

74

72 

97 

308 

148 

129

w100 

97 

103

93 

84 

75 

87 

138

209 

177 

335 

378 

294 

256

Minimum

3.5 

60 

40

2.5

34 

32

58 

71 

25 

5.0 

3.9 

6.8

3.5

June

209 

188 

157 

148 

129

129 

120 

112 

100 

97

84 

81 

64 

59 

54

81 

294 

243

220 

220

438 

232 

112 

72 

62

57 

52 

d40 

d30 

d25

Mean

136 

216 

166

95.5

131 

128 

88.3 

87.3 

178 

130 

12.0 

47.3 

55.6

115

July

d21 

d20 

18 

17 

14

15 

18 

15 

15 

15

15 

13 

13 

13

12

12 

10 

9 

9 

8

6 

6 

5 

5 

5

13 

10 

8 

9 

7 

6

Per 

square 

mile

7.08 

11.2 

8.65

4.97

6.82 

6.67 

4.60 

4.55 

9.27 

6.77 

.625 

2.46 

2.90

5.99

.5 

.5

.5 

.5 

.5

.5 

.5

.5 

.6 

.6 

.4

.8 

.3 

.3 

.3 

.0

.5 

.4 

.O 

.4 

.8

Aug.

6 

5 

5 

5 

6

5

4 

4 

5 

5

5 

5 

5 

5 

4

;

4 

5 

12

188 

198 

148 

138 

120

112 

75 

62 

42 

87 

188

.3 

.6 

.O 

.0 

.O

.0 

.6 

.8 

.3 

.6

.3 

.3 

.8 

.3 

.3

.9 

.9 

.8 

.3 

.5

.0

Sept.

84 

dllo 

d200 

d90 

d50

d30 

d20 

15 

12.5

10

9.6 

8.4 

7.9 

6.8 

dloo

d!20 

d60 

d30 

d!5 

dlO

29 

232 

120 

69 

45

40 

42 

38 

34 

31

Runoff

Inches

8.15 

12.56 

9.99

67.51

7.85

5! 30 

5.07 

10.70 

7.57 

.72 

2.84 

3.23

81.19

Acre-feet

8,350 

12,860 

10,220

69,130

8,040 

7,390 

5,430 

5,190 

10,950 

7,750 

737 

2,910 

3.310

83,140

d Doubtful gage-height record; discharge computed on basis of records for Day Cree'-c ne Lyma
180 SAMISH RIVER BASIN

Samish River near Burlington, Wash.

Location.- Water-stage recorder, lat.48°32'35", long. 122°20'25", in NE^ sec. 7 T. 35

 N ., R. 4 E., at highway bridge half a mile downstream from Friday Creek and 5 miles 

north of Burlington.

Drainage area.- 88 square miles.

Records available.- July 1943 to September 1948.

Extremes.- Maximum discharge during year, 1,210 second-feet Oct. 19 (gage height, 5.14

 feet); minimum, 30 second-feet Oct. 1 (gage height, 1.37 feet).

1943-48: Maximum discharge, 4,310 second-feet Oct. 25, 1945 (gage height, 9.78 

feet); minimum recorded, 18 second-feet July 16, 1944, but may have been less during 

period of no gage-height record.

Remarks.- Records good. State fish hatchery on Friday Creak diverts about 4 second-feet

 which is returned above station. There is evidence of slight regulation and may be 

some pumping for irrigation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.3 

1.5 

1.7 

1.9 

2.1

75

111

150

2.3 

2.6 

2.9 

3.2

3.5

190

252

331

420

525

4.0 

4.5 

5.0

720

925

1,16O

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

46 

79 

2O2 

115

82

67 

61 

58 

59

56 

52 

59 

69 

118

390 

262 

276 

1,02O 

522

282 

222 

232 

2O6

178

192 

174 

156 

148 

286 

301

Nov.

405 

381 

315 

270 

267

463 

78O 

700 

472 

680

580 

438 

472 

455 

390

328 

381 

381 

328 

3O4

272 

252 

234 

222 

333

49O 

354 

293 

26O 

243

Dec.

252 

252 

34O 

293 

257

237 

237 

232 

326 

296

328 

3O4 

381 

455 

542

560 

660 

70O 

660 

508

455 

508 

468 

580 

455

375 

393 

820 

760 

600 

590

Jan.

1,04O 

1,020 

800 

1,030 

84O

740 

64O 

620 

525 

49O

525 

438 

372 

334 

312

288 

27O 

257 

243 

230

218 

254 

693 

542 

390

323 

285 

262 

260 

272 

252

Feb.

234

220 

212 

212 

198

180 

174 

202 

230 

196

178 

172 

174 

186 

204

295

916 

820 

560 

420

438 

820 

8 SO 

640 

560

720 

720 

542 

455

Month Secondfoot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ...................... 1

lendar year 194' 

ary

£

]

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

6,O01 

1,743 

3,824

4,627

4,765 

1,758 

9,817 

7,313 

8,048 

4,780 

2.O28 

2,145 

2,406

ter yearl947-48 .......... 94,628

Peak discharge (base, 1,1OO sec. -ft.}.- Oc

sec. -ft.; Jan. 4 (8 a.m.) 1,160 sec. -ft.? Mai

Mar.

455 

420 

363 

326 

299

285 

274 

267 

245 

230

218 

210 

208 

202 

192

184 

176 

206 

2O6 

257

440 

970 

620 

438 

369

323 

299 

301 

296

274 

264

Maximum

1,020 

78O 

820

1,91O

1.O4O 

916 

970 

328 

64O 

274 

113 

166 

164

1,040

Apr.

254

277 

328 

282 

257

239 

245 

232 

243 

239

232 

237 

224 

220 

232

288 

267 

243 

228 

222

234 

226 

224 

243 

309

262 

224 

210 

2O2 

19O

May

184 

172 

260 

312 

330

640 

472 

328 

281 

262

243 

232 

241 

226 

214

224 

226 

204 

186 

186

184 

176 

170 

172 

174

172 

168 

318 

438 

381 

272

June

228 

204 

188 

170 

156

148 

140 

130 

120 

119

130 

134 

130 

136 

115

146 

243 

200 

158 

186

274 

239 

194 

164 

148

136 

124 

115 

107 

98

July

91 

84 

80 

80 

73

93 

113 

1O1 

84 

72

67 

64 

59

55 

55

53 

51

556'2 

5?

53 

55 

55 

49 

45

44 

61 5=5 

51 

48 

48

Per 

Minimum Mean square 

mile

31 194 2.20 

222 391 4.44 

232 446 5.07

25 232 2.64

218 476 5.41 

172 405 4.60 

176 317 3.6O 

190 244 2.77 

168 260 2.95 

98 159 1.81 

44 65.4 .743 

37 69.2 .786 

46 80.2 .911

31 259 2.94

t. 19 (4 a.m.) 1,210 sec. -ft.: Jan. 1 

'. 22 (1 p.m.) 1.11O sec. -ft.

Aug.

44 

41 

40 

39 

40

46 

44 

4O 

38 

38

37 

37 

37 

41 

41

41 

38 

37 

38 

45

122 

130

88 

134 

166

136 

132 

117 

95 

104 

119

Sept.

Ill 

1O2 

164 

134 

115

1O2 

93 

84 

75 

70

62 

55 

53 

52 

53

56 

55 

52 

48

46

46 

120 

113 

89 

73

7O 

BO 

80 

80 

73

Runoff

Inches

2.54 

4.96 

5.84

35.76

6.24 

4.97 

4.15 

3.09 

3.40 

2.02 

.86 

.91 

1.02

4O.OO

Ac re- feet

11,900 

23,290 

27,420

167,800

29,290 

23,320 

19,470 

14,510 

15,960 

9,480 

4,O20 

4,250 

4,770

187,700

(10:3O p.m. 1,16O
SAMISH RIVER BASIN 181

Friday Creek near Burlington, Wash.

Location.- Water-stage recorder, lat. 48°34'25", long.

3b w. , R. 4 E., If miles upstream from mouth and 6

Drainage area.- 37.1 square miles.

122°20'15", in NE^NE^ sec. 31, T. 

miles north of Burlington.

Kecords available.- August 1943 to October 1948 (discontinued).

Extremes.- Maximum discharge during period October 1947 to October 1948, 537 second-feet

Jan. 4 (gage height, 3. 40. feet); minimum, 3.8 second-feet Aug. 17, 18 (gage height,

0.15 foot).

1943-48: Maximum discharge observed, 1,090 second-feet Oct. 25, 194E (discharge

measurement); minimum observed, -1.3 second-feet Sept. 9, 1944. 

Remarks . - Records good. Some regulation and possibly some diversion at low flow; purpose

Discharge, In second-feet, 1947-46

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.

7.1

10

12.5

16.5

12

10.5

9.7.

9.2

8.9

9.2

9.4

8.9

10.5

10.5

20

54

40

39

136

83

64

54

65

55

48

46

42

39

38

1OO

88

Nov.

114

107

97

86

86

167

22i

197

146

230

193

149

162

160

142

122

140

131

119

113

102

93

85

79

127

189

139

116

104

98

-

Dec.

104

102

139

115

102

94

97

97

137

126

146

129

136

166

213

213

223

240

244

209

195

199

181

189

164

146

156

283

267

223

321

Jan.

352

334

295

482

385

321

276

251

219

209

230

195

168

149

136

125

115

107

100

93

87

108

250

193

147

125

«111

102

99

106

.95

Feb.

89

83

78

79

74

67

63

80

94

79

72

68

70

74

80

134

372

300

227

191

197

342

357

278

247

298

300

247

215

-

-

Peak discharge (base, 4OO sec. -ft.).- Jan

ft.; Feb. 17 (I aim.) 454 sec.-ft. 1 jTl5b. 22

Uar.

205

191

164

142

128

122

112

103

94

86

82

76

73

69

64

61

57

69

66

84

158

238

187

147

132

115

103

95

88

84

79

Apr.

75

92

109

93

83

77

78

71

75

71

68

71

67

62

60

57

60

49

47

45

42

40

40

49

83

67

59

55

54

49

-

Hay

51

45

76

84

99

177

134

108

98

89

84

79

78

71

67

68

67

60

55

50

47

44

49

44

39

36

35

102

158

139

95

June

78

68

60

56

50

47

44

40

37

41

42

41

42

44

37

49

85

71

55

70

86

73

60

52

48

45

41

37

34

31

-

July

28

26

23

22

20

23

22

17.5

14

11.5

10.5

10

9.2

8.4

7.8

7.6

7.1

7.1

8.6

8.4

7.8

7.1

7.8

6.6

6.2

5.7

8.4

7.1

7.1

6.2

5.5

Aug.

5.1

4.7

4.7

4.9

5.1

6.6

5.7

4.9

4.5

4.3

4.3

4.3

4.3

5.1

5.1

4.9

4.2

4.0

4.5

7.5

19.5

14.5

8.9

19.5

24

18.5

17.5

16

11

10.5

17.5

Sept.

28

27

30

27

25

24

22

20

18

15

13.5

13

12

10.5

10.5

13

12

11

10.5

9.7

8.9

21

17.5

14.5

13.5

13.5

17

16

15.5

13.5

. 1 (2:30 a.m.) 40O sec. -ft.; Jan. 4 (7 a.m.) 537 sec.- 

(5 p.m.) 447 sec. -ft.

Day

Oct. 1

2

3

4

5

6

Discharge

11.9

9.7

9.7

58

37

28

Day

Oct. 7

8

9

10

11

12

Discharge

35

31

28

65

115

77

Day

Oct. 13

14

15

16

17

18

Discharge

74

77

a40

a!9

a!3

a!2

Day

Oct. 19

20

21

22

23

24

Discharge

alO

a9

a8

a7.5

a7

al6

Day

Oct. 25

26

27

28

29

30

31

Discharge

a!5

a!3

all

a9

a8

all

a!3

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

Monthly discharge, In second-feet, 1947-48

Month

Calendar year 1947 .........

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

Water year 1947-48 ..........

October 1948. ..................

Secondfoot-days

1,155.9 

4,022 

5,356

29,317.7

5,965 

4,855 

3,474 

1,948 

2,428 

1,564 

367.2 

276.1 

502.6

31,913.8

877.8

Maximum

136 

230 

321

758

482 

372 

238 

109 

177 

86 

28 

24 

30

482

115

Minimum

7.1 

79 

94

2.3

87 

63 

57 

40 

35 

31 

5.5 

4.0 

8.9

4.0

7

Mean

37.3 

134 

173

80.3

192 

167 

112 

64.9 

78.3 

52.1 

11.8 

8.91 

16.8

87.2

28.3

Per 

square 

mile

1.01 

3.61 

4.66

2.16

5.18 

4.50 

3.02 

1.75 

2.11 

1.40 

.318 

.24C 

.453

2.35

.763

Runoff

Inches

1.16 

4.03 

5.37

26.40

5.98 

4.87 

3.48 

1.95 

2.43 

1.57 

.37 

.28 

.5C

31.99

.88

Ac re- feet

2,290 

7,980 

10,620

58,140

11,830 

9,630 

6,890 

3,860 

4,820 

3,100 

728 

548 

997

63,290

1,740
182 WHATCOM CREEK BASIN

Whatoom Creek below hatchery, near Bellingham, Wash.

Loc-ation.- Water-stage recorder," lat. 48°45'10", long. 122°25'40", In NW£SE£ sec. 28, T, 

38 N., R. 3 E., In Whatcom Palls Park, seven-eighths of a mile downstrerm from Lake 

Whatcom and 2 miles east of Bellingham.

Drainage area.- 56 square miles.

Records available.- October 1945 to September 1948.

Extremes.- Maximum discharge during year, 505 socond-feet Jan. 5 (gage height, 4.28 

reet); minimum, 318 second-feet Sept. 20.

1945-48: Maximum discharge, 638 second-feet Jan. 27, 28, 1947 (gage height, 4.3 

feet); minimum, 2.5 second-feet Oct. 14, 21, 1946.

Remarks.- Records fair. Plow completely regulated by Lake Whatcom (usable capacity, about 

2TT7BTJO acre-feet under normal operating conditions). City of Bellinghrm diverts about 

30 second-feet from lake for municipal supply.

Cooperation.- Gage-height record collected in cooperation with city of Bellingham.

Discharge, in second-feet, water year October 1947 to September

Bay

1 

2 

3 

4 

5

6 

7 

8 

9 

1O

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.5 

6.2 

5.8 

6.2 

6.2

6.2 

6.2 

6.2 

6.2 

5.8

5.8 

5.8 

6.5 

6.5 

8.5

8.5 

49 

130 

162 

168

162 

153 

142 

147 

145

136 

126 

118 

105 

124 

134

Nov.

140 

145 

145 

142 

142

f!42 

f!47 

f!49 

a!53 

a!57

a!62 

f!66 

f!66 

a!62 

a!58

a 158 

a!48 

a!44 

a!40 

a!36

f!3Z 

f!30 

al!9 

f!08 

116

126 

126 

124 

118 

114

Dec.

114 

116 

122 

122 

118

116 

114 

108 

107 

108

105 

allO 

al!6 

122 

136

142 

a!53 

a!65 

a!77 

a!89

a201 

a213 

224 

222 

224

a240 

3255 

a270 

285 

282 

295

Jan.

367 

415 

430 

475 

490

475 

460 

445 

415 

385

355 

322 

295 

275 

99

127 

210 

203 

105 

7.3

7.3 

6.4 

6.8 

6.8 

6.4

6.4 

6.4 

6.4 

38 

92 

91

Feb.

89 

89 

88 

88 

86

A6

86 

86 

84 

44

6.0 

6.0 

6.0 

6.4 

7.3

8.8 

10.5 

108 

220 

222

222 

266 

350 

385 

379

415 

445 

445 

430

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Up 17

June 

July 

Augu 

Sept

Via

lendar year 1947

ter year 1947-48 ...............

Mar.

415 

400 

232 

6.4 

6.0

112 

68 

6.4 

6.0

6.0 

6.0 

6.0 

5.6 

5.6

5.6 

5.6 

6.0 

6.0 

6.0

140 

370 

430 

445 

430

415 

400 

385 

370 

349 

328

Apr.

301 

285 

272 

113 

6.0

6.0 

5.6 

5.6

6.0 

6.0

6.0 

6.4 

6.4 

6.4 

6.4

6.4 

6.4 

6.4 

6.0 

6.0

6.0 

6.0 

5.6 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

Secondfoot -day s

2,103.1 

4,215 

5,271

31,056.8

6,629.2 

4,764.0 

5,433.2 

1,128.6 

316.1 

551.4 

226.3 

218.4 

163.5

31,019.8

May

5.6 

5.6 

6.4 

5.6 

5.6

5.6 

5.3 

5.6 

5.6 

5.6

6.0 

6.4 

6.4 

6.4 

6.4

" .4 

6.4 

6.4 

6.4 

6.0

6.0 

6.0 

5.6 

5.6 

5.6

5.6 

5.6

6.0 

6.4 

46 

98

Maximum

168 

166 

295

638

490 

445 

445 

301 

98 

110 

7.8 

13.5 

5.6

490

June

9S 

98 

110 

60 

6.S

6.4 

6.4 

6.4 

6.4 

6.0

6.0 

6.0 

 6.8 

8.3 

9.4

7.8 

7.8 

7.3 

7.3 

7.3

7.3 

7.3 

7.3 

7.3 

7.8

7.3

7.8 

7.3 

6.8 

6.8

July

6.8 

6.8 

6.8 

6.8 

6.8

6.8

7.3 

7.3 

7.3 

6.8

7.3 

7.3 

7.3 

7.8 

7f.8

7.8 

7.8 

7.8 

7.8 

7.3

7.3 

7.3 

7.3 

7.8 

7.3

7.3 

7.3 

7.3 

7.3 

7.3 

7.3

Minimum

5.5

108 

105

4.8

6.4 

6.0 

5.6 

5.6 

5.3 

6.0 

6.8 

5.3 

5.3

5.3

Aug.

6.8 

6.8 

6.8 

6.8 

6.6

6.8 

6.8 

6.8 

6.8 

6.8

6.8 

6.8 

6.8 

6.8 

6.8

6.8

e.e

6.8 

6.8 

7.3

7.3 

6.8 

7.3 

7.3 

7.8

13.5 

10.0 

5.6 

5.6 

5.6 

5.3

K?an

67.8 

140 

170

85.1

214 

164 

175 

1 37.6 

10.2 

18.4 

7.30 

7.05 

5.45

84.8

Sept.

5.3 

5.3 

5.3 

S.Z 

5.3

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

5.3 

5.3 

5.3 

5.3

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.6 

5.6

Runoff In 

acre-feet

4,170 

8,360 

10,450

62,610

13,150 

9,450 

10,780 

2,240 

627 

1,090 

449 

433 

324

61,520

a Mo gage-height record; discharge interpolated, or computed on basis of recorded range in stage, 

general conditions in the area, and records for Samish River near Burlington, 

f Computed on basis of partly estimated gage-height record.
WHATCOM CREEK BASIN 183

Austin Creek near Bellingham, Wash.

Location.- Water-stage recorder, lat. 48°42'40", long. 122°19'50", in SWiNW£ sec. 8, T. 37 

N., K. 4 E., three-quarters of a mile upstream from mouth and 5 miles southeast of 

Bellingham.

Records available.- July to September 1948 (discontinued).

Extremes.- Maximum discharge during period, 13 second-feet Sept. 23 (gage height, 1.35 

 i'eet); minimum, 0.8 second-foot Aug. 12, 13, 17, 18 (gage height, 0.78 foot).

Remarks.- Records good. No known regulation or diversion.

Discharge, in second-feet, July to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

July

3.5

3.1

2.9

2.9

2.7

3.9

3.7

3.1

2.7

2.4

2.3

2.2

2.0

1.8

1.7

Aug.

1.2

1.1

1.1

1.1

1.0

1.3

1.2

1.0

1.0

1.0

.9

.9

.9

1.0

1.1

Month

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

August. ........

September. .....

The period. . .

Sept.

4.3

4.6

7.3

6.7

5.6

5.1

4.1

3.7

3.3

2.7

2.6

2.4

2.3

2.2

2.9

Secondfoot-days

66.7

106.8

146.6

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Maximun3.9

11

12

-

July

6

5

6

9

8

6

fl 5

fl 6

1 5

1 3

1 5

2 2

1 8

1 6

1 5

1 3

Aug.

1.1

.9

.8

1.0

1.9

7.8

7.0

5.3

11

11

9.3

9.0

7.8

6.4

5.6

5.1

Minimum Mean

1.3 2.15

.8 3 . 45

2.2 4.89

-

Sept.

4.1

3.1

2.9

2.7

2.6

4.1 12 -

11

8.4

7.3

6.4

6.4

5.9

5.3

4.6

Runoff in 

acre-feet

132

212

291

635

f Computed on "basis of partly estimated gage height 

record.

SQUALICUM CREEK BASIN 

Squalicum Creek at Bellingham, Wash.

Location.- Water-stage recorder, lat. 48°46'50", long. 122°26'25", in NW£SW£ sec. 16, T. 38 

N. , R. 3 E., at Bellingham city limits, 50 feet downstream from railroad bridge and 3-J 

miles upstream from mouth.

Records available.- July to September 1948.

Extremes.- Maximum discharge during period, 2.5 second-feet July 6 (gage height, 1.56 feet); 

minimum, 0.2 second-foot July 25, 26, Aug. 1-5, 10, 11; minimum gage height, 1.33 feet 

July 25, 26, Aug. 1, 2.

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

which are fair. No known diversion or regulation.

Discharge, in second-feet, July to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

July

fo.8 '.8

.6

.7

.8

1.4

.9

.8

.8

.6

.6

.5

.4

.4

.4

Aug.

0.2

.2

.2

.2

.2

.3

.3

.3

.3

.2

.2

.3

.3

.3

.3

Month

September. .......

The period. ....

Sept.

 0.6

.6

1.3

.9

.8

.7

.8

1.0

1.0

.9

.9

.9

.6

.4

.4

Secondfoot-days

25.5

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Maximum

1.4

-

July

0.4

.4

.4

.7

.5

.4

.4

.4

.4

.3

.3

.8

.4

.4

.3

.3

Minimus

.4

-

Aug.

0.4

.3

.3

.3

.4

1.5

1.0

.6

1.3

.7

.6

a. 7

a. 7

a. 6

a. 6

a. 6

i Mean

.85

-

Sept.

0.8

.7

.6

.5

.4

.4

1.4

1.3

1.1

.8

.8

1.2

1.3

1.3

1.1

-

Runoff in 

icre-feet

51

114

a No gage-height record; discharge computed on'basis of 

recorded range in stage and records for nearby streams.

f Computed on basis of partly estimated gage-height record. 

Note.- Shifting-control method used July 1-31.

939922 0-51-13
184 NOOKSACK RIVER BASIN

Noolcsaclc River -above Cascade River, near Glacier, Wash.

Location.- Water-stage recorder/lat. 48°54 I 20", long. 121°50'50", in NW£ sec. 1, T. 39 

M., K. 7 E., a quarter of a mile upstream from Cascade Creek, half a mile downstream 

from Dead Horse Creek, 4| miles east of Glacier, and 6 miles upstream from Glacier 

Creek.

Drainage area.- 105 square miles.

Records available.- October 1937 to September 1948.

Average discharge.- 11 years, 708 second-feet.

Extremes.- Maximum discharge during year, 6,690 second-feet Oct. 19 (gage height, 7.95 

reet), from rating curve extended above 2,700 second-feet; minimum, 96 second-feet 

Mar. 19 (gage height, 2.13 feet).

1937-48: Maximum discharge, 9,670 second-feet Oct. 28, 1937 (gage height, 10.28 

feet), from rating curve extended above 2,000 second-feet; minimum recorded, 85 secondfeet Mar. 30, 1938.

Remarks.- Records fair. No diversion. Some regulation at low flow by power plant at 

Excelsior.

Revisions (water years).- W 1092: 1946.

Discharge, in seocnd-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

486 

1,800 

1,620 

1,410 

730

497 

430 

574 

850 

552

450 

445 

682 

492 i;eoo

1,420 

1,270 

1,810 

3,320 

1,480

1,010 

790 

718 

652 

1,240

1,350 

790 

850 

694 

712 

1,500

Nov.

1,620 

1,040 

820 

724 

646

629 

700 

790 

670 

688

652 

602 

585 

530 

480

450 

530 

514 

460 

425

392 

369 

356 

347 

475

646 

530 

470 

445 

435

Dec.

440 

416 

406 

369 

352

334 

322 

309 

301 

289

285 

282 

628 

486 

402

486 

945 

912 

676 

552

536 

524 

1,600 

1,150 

820

646 

1,370 

1,150 

760 

607 

634

Jan.

978 

820 

602 

530 

480

486 

475 

465 

425 

402

365 

338 

326 

318 

301

289 

282 

274 

266 

266

270 

289 

343 

343 

309

293 

285 

274 

270 

259 

252

Month

Octo 

Neve 

Dece

Ca

Janu 

Febi 

Hare 

Apr! 

May 

June 

Jnly 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

ary

1 .........................

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

ter year 1947-48 ..........

Feb.

248 

241 

238 

230 

220

210 

214 

217 

210 

201

194

191 

191 

201 

230

210 

293 

455 

318 

270

263 

282 

266 

255 

244

270 

259 

248 

234

Second 

foot-days

32,224 

18,020 

18,989

282,288

11,875 

7,103 

5,906 

9,359 

41,206 

73,770 

36,742 

29,018 

23,788

308,000

Mar.

224 

217 

207 

201 

191

191 

191 

185 

182 

176

179 

179 

182 

179 

174

171 

168 

168 

162 

159

194 

227 

204 

194 

188

182 

188 

201 

214 

214 

214

Maximum

3,320 

1,620 

1,600

3,320

978 

455 

227 

682 

3,640 

4,290 

1,620 

1,350 

1,430

4,290

Apr.

210 

207 

201 

191 

188

182 

182 

179 

182 

182

182 

179 

182 

188 

227

387 

411 

411 

420 

445

552 

682 

618 

519 

450

383 

338 

314 

293 

274

May

263 

255 

369 

383 

387

1,050 

912 

724 

700 

658

634 

676 

820 

712 

646

712 

945 

850 

790 

1,150

1,570 

1,660 

1,480 

1,710 

2,360

2,950 

3,380 

3,640 

3,250 

2,770 

2,770

Minimum

430 

347 

282

204

252 

191 

159 

179 

255 

1,480 

880 

682 

486

159

June

2,770 

2,830 

3,130 

2,950 

3,250

3,640 

4,160 

4,290 

4,290

3,510

2,830 

2,410 

2,240 

2,140 

2,080

2,020 

1,860 

1,760 

1,920 

1,920

2,240 

1,810 

1,620 

1,620 

1,520

1,480 

1,570 

1,970 

2,080 

1,860

Mean

1,039 

601 

613

773

383 

245 

191 

312 

1,329 

2,459 

1,185 

936 

793

842

July

1,480 

1,230 

1,270 

1,270 

1,080

1,230 

1,310 

1,120 

1,O80 

1,150

1,080 

1,040 

1,010 

1,080 

1,230

1,350

1,440 

1,480 

1,310 

1,230

1,150 

1,190 

1,120 

912 

880

1,010 

1,620 

1,080 

1,040 

1,080 

1,190

Per 

square 

mile

9.90 

5.72 

5.84

7.33

3.65 

2.33 

1.82 

2.97 

12.7 

23.4 

11.3 

8.91 

7.55

8.02

Aug.

1,230 

1,190 

1,120 

1,150 

912

760

706 

790 

820 

820

760 

760 

790 

760 

736

682 

688 

760 

912 

850

1,350 

1,150 

945 

1,080 

1,040

1,040 

1,010 

945 

912 

1,270 

1,080

Sept.

850 

1,240 

1,430 

912 

760

688 

676 

706 

736 

730

694 

634 

629 

664 

1,230

790 

612 

530 

497 

486

1,010 

1,150 

820 

640 

546

536 

624 

1,010 

1,390 

568

Runoff

Inches

11.41 

6.38 

6.73

99.99

4.21 

2.52 

2.09 

3.31 

14.59 

26.13 

13.01 

10.28 

8.43

109.09

Peak discharge (base, 3.6OO sec. -ft.}.- Oct. 19 (l a.m.) 6,690 sec. -ft.; June 8 (9:37 p

Acre-feet

63,920 

35,740 

37,660

559,910

23,550 

14,090 

11,710 

18,560 

81,730 

146,300 

72,880 

57,560 

47,180

610,880

.ra.) 4,980
NOOKSACK RIVER BASIN 185

Nooksack River at Deming, Wash.

Location.- Water-stage recorder, lat. 48°48'35", long. 122°12 I 15", in lot 12, sec. 6, T. 

38 w. , R. 5 E., 800 feet downstream from South Pork 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 1948. September to December 1910 (gage heights 

only) at sice i 1/8 miles downstream; J>ecembor 1910 to March 1911 (gage heights only) 

at Nugent's bridge, 4 miles downstream from Deming.

Average discharge.- 13 years (1935-48), 3,011 second-feet.

Extremes.- Maximum discharge during year, 31.400 second-feet Oct. 19 (gage height, 13.41 

reetj; minimum, 1,200 second-feet Feb. 11 (gage height, 4.28 feet).

1935-48: Maximum discharge, 38,000 second-feet probably Oct. 25, 1?45 (gage height, 

14.74 feet, from high-water mark in gage well), from rating curve exterded above 

25,000 second-feet; minimum, 560 second-feet Nov. 9, 10, 1936, but may have been less 

sometime during periods of ice effect.

Remarks.- Records good. No diversion. Some regulation at power plant at Excelsior has 

little if any effect at this station.

Discharge, in second-feet, water year October 1947 to September If48

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

Si

Oct.

1,220 

4,750 

5,560 

7,500 

3,440

2,350 

1,310 

1,780 

2,440 

2,080

1,650 

1,510 

2,260 

2,070 

7,470

11,000 

7,310 

8,090 

20,000 

7,810

5,300 

4,100 

4,100 

3,550 

3,770

5,430 

3,550 

3,660 

3,340 

4,450 

5,430

Nov.

S.O9O 

6,O7O 

5,060 

4,100 

3,550

3,770 

5,300 

6,070 

4,570 

5,060

5,060 

3,990 

4,220 

5, HO 

3,240

2,830 

3,880 

4,100 

3,340 

2,930

2,540 

2,350 

2,150 

2,020 

2,900

4,810 

3,550 

2,930 

2,730 

2,640

Dec.

2,830 

2,640 

3,340 

2,830 

2,440

2,260 

2,080 

1,950 

1,950 

1,890

1,870 

1,870 

4,550 

4,690 

3,880

4,340 

8,970 

7,530 

5,940 

4,450

4,220 

4,450 

8,050 

9,940 

6,990

5,680 

7,690 

9,890 

7,620 

5,430 

5,940-

Jan.

9,580

8,670 

6,330 

5,940 

4,810

4,930 

4,690 

4,810 

4,100 

3,880

3,550 

3,130 

2,730 

2,540 

2,440

2,260 

2,150 

2,050 

1,940 

1,860

1,800 

1,920 

4,450 

3,880 

2,930

2,440 

2,260 

2,080 

1,970 

1,920 

l;770

Month

Ootc 

Move 

Dece

C2

Janu 

Febr 

Hare 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

mber ......................

lendar year 1947

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

ter year 1947-48 ..........

Feb.

1,660 

1,570 

1,520 

1,500 

1,410

1,290 

1,310 

1,420 

1,420 

1,300

1,220 

1,210 

1,210 

1,320 

1,870

1,890 

4,400 

5,810 

3,770 

2,930

2,730 

4,100 

3,990 

3,240

3,240

4,930 

4,220 

3,340 

2,830

Second 

foot-days

149,280 

117,620 

147,300

1,273,640

109,810 

72,650 

63,960 

79,080 

174,760 

196,500 

93,830 

85,000 

77,610

1,367,400

peak discharge (base, 13,000 sec.-ft.J .- C

31,400 sec. -ft.; Dec. 23 (11 p.m.) 15,900 se

Mar.

2,640 

2,440 

2,170 

2,020 

1,870

1,800 

1,740 

1,670 

1,610 

1,520

1,490 

1,470 

1,520 

1,470 

1,430

1,410 

1,360 

1,440 

1,360 

1,360

3,030 

5,560 

3,240 

2,540 

2,260

2,050 

1,980 

2,350 

2,640 

2,350 

2,170

Maximum

20,000 

8,090 

9,940

20,000

9,580 

5,810 

5,560 

4,810 

11,200 

10,200 

4,100 

5,180 

5,810

20,000

Apr.

2,080 

2,020 

2,030 

1,800 

1,690

1,600 

1,580 

1,530 

1,600 

1,610

1,610 

1,570 

1,520 

1,550 

2,030

3,830 

3,770 

3,660 

3,440 

3,550

4,340 

4,810 

4,69O 

4,340 

3,990

3,240 

2,730 

2,440 

2,260 

2,120

May

2,000 

1,870 

2,890 

3,660 

3,750

9,270 

6,590 

4,690 

3,990 

3,440

3,240 

3,340 

4,810 

4,220 

3,550

4,100 

5,180 

4,450 

3,990 

5,430

6,590 

6,590 

5,810 

6,720 

8,670

9,890 

10,500 

11,200 

9,270 

7,530 

7,530

Minimum

1,220 

2,020 

1,870

1,000

1,770 

1,210 

1,360 

1,520 

1,870 

4,100 

1,970 

1,640 

1,510

1,210

June

7,530 

7,530 

8,090 

7,530 

7,810

8,670 

10,200 

10,200 

9,890 

9,890

8,090 

6,720 

6,460 

5,940 

5,680

5,560 

5,680 

5,060 

5,300 

5,430

6,590 

5,560 

,810 

,570 

,340

,100 

,100 

,930 

5,180 5,oe&

Mean

4,815 

3,921 

4,752

3,489

3,542 

2,505 

2,063 

2,636 

5,637 

6,550 

3,027 

2,742 

2,587

3,736

July

4,100 

3,340 

3,240 

3,340 

2 , 930

3,340 

3,770 

3,240 

2 , S30 

3,030

2 , 930 

2,640 

2,440 

2,540 

2,830

3,130 

3,240 

3,770 

3,550 

3,240

2,930 

2 , 930 

2,640 

2,170 

1,970

2,100 

4,100 

3,030 

2,730 

2,830 

2,930

Per 

square 

mile

8.30 

6.76 

8.19

6.02

6.11 

4.32 

3.56 

4.54 

9.72 

11.3 

5.22 

4.73 

4.46

6.44

Aug.

3,030 

2,930 

2,730 

2,830 

2,260

2,000 

1,770 

1,860 

1,940 

1,970

1,840 

1,770 

1,730 

1,920 

1,730

1,660 

1,640 

1,700 

2,030 

2,260

5,180 

4,810 

3,130 

4,220 

3,990

3,550 

3,990 

3,340 

2,930 

3,990 

4,220

Sept.

3,130 

2,930 

5,810 

3,660 

2,830

2,440 

2,260 

2,260 

2,170 

2,100

2,030 

1,870 

1,810 

1,830 

3,350

2,330 

1,980 

1,700 

1,570 

1,510

1,850 

4,810 

3,550 

2,540 

2,070

1,940 

2,150 

3,440 

2,930 

2,260

Runoff

Inches

9.57 

7.54 

9.44

81.66

7.04 

4.66 

4.10 

5.07 

11.21 

12.60 

6.02 

5.45 

4.98

87.68

ct. 15 (11 p.m.; 18,600 sec. -ft.; Oct. 19 (5 

c.-ft.; Dec. 27 (11:30 p.m.) 13,300 se-..-ft.

Acre feet

296,100 

233,300 

292,200

2,526,000

217,800 

144,100 

126,900 

156,900 

346,600 

389,800 

186,100 

1 68 , 600 

153,900

2,712,000

a.m.)
186 NOOKSACK RIVER BASIN

Nooksack River near Lynden, Wash.

Location.- Water-stage recorder, lat. 48°55 I 10", long. 122°29'10", in NE^NE^ sec. 36, T. 

lU N., R. 2 E., 150 feet downstream from bridge on State Highway IB, ij 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 Seotember 1948.

Extremes.- Maximum discharge during year, 26,500 second-feet Oct. 19 (gage height, 19.78 

feet); minimum, 1,180 second-feet Oct. 1 (gage height, 6.17 feet).

1944-48: Maximum discharge, 44,500 second-feet Oct. 26, 1945 (gage height, 21.58 

feet); minimum, 980 second-feet Oct. 19, 1946 (gage height, 5.76 feet).

Remarks.- Records good. No diversion. Slight regulation by power plant at Excelsior. 

Diurnal fluctuation due to melting snow in summer.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

3,500 

5,360 

7,950 

4,020

2,620 

2,020 

1,840 

2,120 

2,310

1,800 

1,640 

1,890 

2,310 

4,730

13,600 

8,320 

7,390 

21,300 

9,860

6,000 

4,440 

4,160 

3,630 

3,370

5,220 

3,630 

3,370 

3,370 

4,020 

4,740

Nov.

8,700 

6,510 

5,040 

4,160 

3,500

3,370 

4,740 

6,000 

4,740 

4,590

5,200 

4,160 

4,020 

3,890 

3,370

2,950 

3,500 

4,160 

3,370 

3,010

2,670 

2,460 

2,260 

2,160 

2,360

4,890 

3,760 

3,130 

2,890 

2,670

Dec.

2,890 

2,720 

3,500 

3,250 

2,720

2,460 

2,260 

2,120 

2,160 

2,020

1,980 

1,940 

3,540 

5,360 

4,020

3,890 

9,450 

8,320 

6,850 

4,890

4,160 

4,590 

6,070 

11,700 

7,030

5,360 

6,100 

11,400 

7,390 

5,520 

5,200

Jan.

10,000 

10,600 

6,850 

6,340 

5,040

5,040 

4,740 

4,890 

4,300 

4,020

3,760 

3,250 

2,950 

2,780 

2,620

2,410 

2,310 

2,210 

2,120 

2,070

1,980 

2,120 

3,870 

4,160 

3,250

2,720 

2,460 

2,260 

2,160 

2,120 

1,980

Feb.

1,890 

1,760 

1,720 

1,680 

1,560

1,520 

1,440 

1,600 

1,.600 

1,440

1,410

1,410 

1,410 

1,480 

2,120

2,310 

4,580 

6,510 

4,590 

3,370

3,130 

4,270 

4,740 

3,760 

3,630

5,240 

5,040 

3,890 

3,370

Honth fooH^s

Ooto 

Nova 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 ......

ary ........ .

1,770 

8,230 

0,860

.. 1,306,000

. . . . . 11

h ......................... 6

1 ......................... 8

.......................... 9

ember ..................... 7

7,380 

2,470 

9,070 

1,420 

4,590 

4,490 

4,450 

4,920 

8,550

ter year 1947-48 .......... 1,418,200

Mar.

3,010 

2', 720 

2,410 

2,260 

2,120

2,070 

1,980 

1,890 

1,760 

1,680

1,640 

1,600 

1,600 

1.6OO 

1,560

1,520 

1,480 

1,520 

1,480 

1,440

2,060 

6,340 

3.76O 

2,890 

2,560

2,310 

2,120 

2,310 

2,560 

2,510 

2,310

Maximum

21,300 

8,700 

11,700

21,300

10,600 

6,510 

6,340 

4,740 

12,200 

10,800 

4,440 

5,360 

5,520

21,300

Apr.

2,210 

2,120 

2,210 

2,020 

1,890

1,760 

1,720 

1,680 

1,720 

1,720

1,720 

1,680 

1,640 

1,600 

1,840

3,360 

3,890 

3,760 

3,500 

3,500

4,160 

4,740 

4,740 

4,440 

4,160

3,370 

2,890 

2,560 

2,410 

2,410

May

2,070 

1,980 

2,340 

3,760 

3,250

8,800 

7,750 

5,360 

4,300 

3,890

3,500 

3,500 

4,590 

4,590 

3,890

4,020 

5,360 

4,890 

4,300 

5,200

6,850 

7,210 

6,170 

6,680 

8,700

10,600 

11,600 

12,200 

10,600 

8,700 

7,940

Minimum

1,240 

2,160 

1,940

1,120

1,980 

1,410 

1,440 

1,600 

1,980 

4,020 

2,070 

1,680 

1,600

1,240

Peak discharge (base, 15.00O sec. -ft.).- Oct. 16 (6 a.m.) 19

26,500 sec. -ft.; Dec. 24 (3:30 a.m.) 15,500 sec. -ft.

June

7,940 

7,750 

8,700 

7,940 

7,940

8,700 

10,400 

10,800 

10,600 

10,800

8,700 

7,390 

6,850 

6,170 

6,000

5,680 

6,000 

5,360 

5,520 

5,200

6,510 

,OOO 

,890 

,740 

,440

,160 

,020 

,890 

5,200 

5,200

Mean

4,896 

3,941 

4,866

3,578

3,786 

2,844 

2,228 

2,714 

5,955 

6,816 

3,047 

2,739 

2,618

3,875

July

4,440 

3,630 

3,370 

3,370 

3,130

3,130 

3,760 

3,500 

2,950 

3,010

2,950 

2,720 

2,560 

2,560 

2,720

2,950 

3,250 

3,500 

3,760 

3,250

3,010 

2,890 

2,720 

2,410 

2,160

2,070 

3,590 

3,130 

2,670 

2,620 

2,670

Per 

square 

mile

7.70 

6.20 

7.65

5.63

5.95 

4.47 

3.50 

4.27 

9.36 

10.7 

4.79 

4.31 

4.12

6.09

100 sec. -ft.; Oct

Aug.

2,840 

2,840 

2,670 

2,670 

2,560

2,210 

1,940 

1,840 

1,890 

1,940

1,890 

1,800 

1,760 

1,940 

1,800

1,720 

1,680 

1,720 

1,840 

1,980

4,250 

5,360 

3,500 

4,020 

4,160

3,630 

4,160 

3,500 

3,010 

3,500 

4,300

Sept.

3,250 

2,780 

5,520 

4,020 

3,130

2,560 

2,310 

2,210 

2,160 

2,120

2,020 

1,940 

1,840 

1,840 

2,650

3,250 

2,160 

1,840 

1,680 

1,600

1,640 

4,110 

4,020 

2,840 

2,310

2,020 

2,120 

2,900 

3,250 

2,460

Runoff

Irches

8.87 

6.91 

8.82

76.37

6.86 

4.82 

4.04 

4.76 

10.79 

11.96 

5.52 

4.97 

4.59

82.91

19 (12

Acre-feet

301,000 

234,500 

299,200

2,590,000

232,800 

163,600 

137,000 

161,500 

366,100 

405,600 

187,300 

168,400 

155,800

2,813,00

30 p.m.)
NOOKSACK RIVER BASIN IE 

Kendall Creek at Kendall, Wash.

Location.- Water-stage recorder, lat. 48°55'05", iQng. 122°08'35", in NW£ sei. 34, T. 40

 N., H. 5 E., at Kendall, if miles upstream from mouth.

Records available.- July to September 1948.

Extremes.- Maximum discharge during period, 11 second-feet July 1, 2, 3, 6 (gage height,

 1.3(j I'eet); minimum, 1.0 second-foot Sept. 20, 21.

Remarks.- Records good. No known diversion or regulation.

Discharge, in second-feet, July to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

July

11

11

11

10.5

10.5

11

10.5

9.7

9.2

8.8

8.3

8.3

8.3

7.9

7.6

Aug.

.9

.6

.3

.3

.3

.0

.0

.7

.4

.4

.2

.2

.0

.0

3.8

Month

July..'. ..............

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

The period. ........

Sept.

2.5

2.5

2.5

2.4

2.3

2.2

2.0

2.0

1.8

1.7

1.5

1.5

1.4

1.4

1.5

Secondfoot-days

48.4

_

Day

 16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Maximum

2.5

.

July

7.2

7.2

7.6

7.9

7.6

7.2

7.2

7.2

6.9

6.5

6.5

6.9

6.5

6.2

5.9

5.9

Minimum

2.8

1.0

_

Aug.

3.8

3.6

3.6

3.6

3.6

4.0

4.0

3.6

3.8

3.4

3.2

3.1

3.1

2.9

2.9

2.8

Mean

1.61

_

Sept.

.6

.3

.2

.1

.0

.1

.6

.5

.3

.3

.2

.3

.3

.2

.2

-

Runoff In 

acre-feet

250

96

850

Coal Creek near Kendall, Wash.

Location.- Water-stage recorder, lat. 48°53'25", long. 122°09'05", in NW^NW^ sec. 10, T.

 39 N., R. 5 E., a quarter of a mile upstream from mouth and 2 miles south of Kendall.

Records available.- July to September 1948 (discontinued).

Extremes.- Maximum discharge during period, 70 second-feet Sept. 22 (gage height, 2.10

 I'eet); minimum, 0.7 second-foot Aug. 13 (gage height, 0.78 foot).

Remarks.- Records good. No diversion or regulation.

Discharge, in second-feet, July to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

July

1.5

1.5

1.4

1.5

1.4

3.5

3.9

3.5

2.3

1.8

1.6

1.5

1.3

1.2

1.2

Aug.

1.5

1.3

1.2

1.2

1.2

1.2

1.1

1.0

.9

.8

.8

.8

1.1

1.7

1.3

Month

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

September. .........

The period. ......

Sept.

10.5

9.7

23

15

9.7

6.6

5.2

4.0

3.4

2.8

2.6

2.3

2.0

2.2

5.4

Secondfoot-days

312.2

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Maximum

8.5

57

-

July

.1

.0

: .5

.7

.3

.2

.2

.3

.2

.1

.1

.5

.0

.9

2.6

1.8

Minimum

2.0

-

Aug.

1.2

1.0

1.0

2.2

6.1

42

23

13

46

20

19.5

23

14.5

9.4

10.5

17.5

Mean

10.4

-

Sept.

13.5 "6.1

4.2

3.5

2.8

6.8

57

34

19

12.5

9.4

9.4

11

11

7.6

-

Runoff In 

acre-feet

128

619

1,280
188 NOOKSACK RIVER BASIN

Canyon Creek at Kulshan, Wash.

Location.- Water-stage recorder, lat. 48°50'05", long. 122°08 I 05", in SE^SE^ sec. 27, T. 

39 N., R. 5 E., at Kulshan, a quarter of a mile upstream from mouth.

Records available.- July to September 1948.

Extremes.- Maximum discharge during period, 124 second-feet Aug. 21 (gage height, 2.13 

reet); minimum, 8.8 second-feet Aug. 12, 13, 18 (gage height, 0.88 foot).

Remarks.- Records good. No diversion or regulation.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

No.ve 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Th

Lendar year

e period. ...............................

Mar. Apr.

Secondfoot-days

750 

945.2

999.5

-

May

-

Maximum

57 

92

89

-

June July

32 

27 

25 

25 

24

36 

57 

45 

33 

30

27 

24 

23

21 

20

19.5 

19 

21 

22 

19

17 

15.5 

14.5

13 

12

12.5 

29 

27 

23 

19.5 

17.5

Minimum

12

8.8 

15

-

Aug.

15 

14 

13 

12 

12

12 

11.5

11 

10 

9.5

9.2 

8.8 

9.5 

12 

11.5

10.5 

9.5 

9.2 

13 

23

92

90 

58 

72 

62

63 

75 

56 

44 

43 

54

Mean

24.2 

30.5 

33 3

-

Sept.

42 

43 

62 

50 

40

34 

29 

25 

23

21

19 

17.5 

15.5 

15 

19.5

31 

23 

19 

17 

15

19 

89 

68 

46 

36

31 

30 

43 

43 

34

Runoff In 

acre-feet

1,490 

1,870 

1,980

5,340
NOOKSACK RIVER BASIN 

South Fork Nooksack River near Wickersham, Wash.

189

Location.- Water-stage recorder, lat. 48°39'50", long. 122°07i50", In lot 2, sec. 26, T. 

3V w., R. 5 E., three-quarters of a mile upstream from Skookum Creek ard 4 miles east 

of Wickersham.

Drainage area.- 103 square miles.

Records available.- October 1933 to "September 1948.

Average discharge.- 15 years, 699 second-feet.

Extremes.- Maximum discharge during year, 14,400 second-feet Oct. 18 (gage height, 11.26 

reet); minimum, 125 second-feet Oct. 1 (gage height, 2.32 feet).

1933-48: Maximum discharge, 15,600 second-feet Oct. 24, 1946 (gage height, 11.81 

feet); minimum, 66 second-feet Oct. 9, 1940, Sept. 11-13, 1944.

Remarks.- Records good. No diversion or regulation. 

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

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

1,500 

1,630 

1,840 

651

461 

373 

351 

590 

481

395 

339 

486 

446 

4,120

3,390 

2,780 

3,960 

5,400

1,750

1,110 

812 

912 

756 

759

1,060 

722 

865 

784 

1,240 

1,350

Nov.

1,860 

1,260 

1,050 

850 

756

888 

1,390 

1,540 

1,030 

1,300

1,170 

880 

987 

805 

683

585 

863 

865 

670 

573

501 

461 

432 

404

822

1,100 

735 

608 

556 

545

Dec.

633 

562 

742 

596 

501

451 

427 

390 

395 

368

377 

386 

1,260 

1,040 

865

1,270 

3,140 

1,920 

1,380 

960

952 

1,000 

2,440 

2,280 

1,390

1,100 

2,420 

2,380 

1,390 

1,020 

1,440

Jan.

2,580 

1,870 

1,230 

1,130

 828

896 

850 

987 

749 

722

639 

539 

486 

456 427'

399 

377 

359 

351 

339

331 

42O 

1,140 

842 

591

486 

437 

399 

377 

364 

327

Month

Octc 

Neve 

Dece

Ca

Janu 

Febi 

Marc 

Apri 

May 

June 

Julj 

Aug\J 

Sept

Wa

mber ......................

lendar year 194 

ary

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

ter year 1947-48. .........

Feb.

315 

292 

285 

277 

256

246 

256 

281 

270 

242

232 

232 

232 

263 

395

368 

1,150 

1,340 

728 

539

534 

1,020 

784 

596 

620

582 

828 

614 

512

Secondfoot-days

41,441 

26,169 

35,475

293,439

21,928 

14,289 

14,802 

20,257 

46,577 

40,171 

12,708 

9,943 

12,350

296,110

Mar.

486 

441 

399 

368 

351

347 

343 

331 

311 

300

292 

292 

319 

307 

300

292 

285 

307 

288 

296

1,460 

1,520 

735 

579 

518

471 

491 

591 

658 

579 

545

Maximum

5,400 

1,860 

3,140

6,340

2,580 

1,340 

1,520 

1,230 

3,430 

2,330 

651 

850 

1,210

5,400

Apr.

523 

486 

486 

427 

395

373 

381 

377 

408 

418

422 

399 

390 

413 

637

1,230 

1,050 

944 

858 

952

1,180 

1,230 

1,220 

1,170 

978

742 

614 

550 

518 

486

May

456 

441 

896 

920 

1,340

3,430 

1,780 

1,250 

1,020 

896

828 

880 

1,390 

1,230 

1,030

1,180 

1,390 

1,160 

1,090 

1,490

1,780 

1,590 

1,340 

1,700 

2,330

2,640 

2,580 

2,850 

2,090 

1,750 

1,860

Minimum

128 

404 

368

108

327 

232 

285 

373 

456 

709 

242 

150 

206

128

June

1,800 

1,860 

2,030 

1,750 

1,800

2,090 

2,330 

2,210 

2,090 

1,860

1,590 

1,340 

1,340 

1,140 

1,100

1,130 

1,170 

969 

978 

1,040

1,280 

978 

828 

798 

756

709 

728 

842 

865 

770

Mean

1,337 

872 

1,144

804

707 

493 

477 

675 

1,502 

1,339 

410 

321 

412

809

July

620 

534 

523 

534 

471

601 

651 

523 

471 

471

446 4ie

381

see

404

413 

404 

415 

42? 

36*

33F 

327 

296 

263 

242

252 

460 

307 

266 

256 

252

Per 

square 

mile

13.0 

8.47 

11.1

7.81

6.86 

4.79 

4.63 

6.55 

14.6 

13.0 

3.98 

3.12 

4.00

7.85

Aug.

252 

239 

232 

229 

209

219

194 

184 

175 

175

170 

167 

164 

175

172

175 

156 

150 

170 

278

850 

604 

351 

631 

627

471 

496 

413 

335 

584 

696

Sept.

437 

468 

1,210 

608 

451

377 

331 

296 

270 

252

235 

226 

209 

206 

462

421 

281 

246 

222 

206

246 

945 

620 

441 

355

347 

418 

637 

523 

404

Runoff

Inches

14.96 

9.45 

12.81

105.95

7.92 

5.16 

5.34 

7.31 

16.82 

14.50 

4.59 

3.59 

4.46

106.91

Acre-feet

82,200 

51,910 

70,360

582,000

43,490 

28,340 

29,360 

40,180 

92,380 

79,680 

25,210 

19,720 

24,500

587,300

Peak discharge (base, 4,800 sec. -ft.).- Oct. 4 (12:30 a.m.) 4,970 sec. -ft.; Oct. 15 (6:30 p.m.)

(6 p.m.) 5,540 sec.-ft.
NOOKSACK RIVER BASIN

v sec. 27, T. 37 

kersham.

Skookum Creek near Wiekersham, Wash.

Location.- Water-stage recorder, lat. 48°40'20", long. 122°08'30", in NEv

 N. , R. 5 E., 500 feet upstream from mouth, 3j miles northeast of Wicke

Recdrds available.- July to September 1948.

Extremes.- Maximum discharge during period, 520 second-feet Sept. 2 (gage height, 4.40

 feet) from rating curve extended above 110 second-feet; minimum, 39 second-feet 

Aug. 17, 18 (gage height, 2.25 feet).

Remarks . - Records good. No diversion or regulation.

Discharge, In second-feet, July to September 1948

Bay

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

July

113

100

95

93

82

121

127

97

84

86

81

75

72

74

75

Month

September. .....

The period . . .

Aug.

64

62

58

59

53

54

49

46

45

44

43

41

43

45

48

Sept.

97

127

212

117

92

80

71

64

59

55

53

50

48

50

155

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

forays * 

2,570 285 

2,765 248

-

July

76

76

84

80

74

71

71

64

58

54

62

114

75

66

65

64

Aug.

44

39

39

49

115

285

167

97

161

117

112

122

93

78

141

137

Sept.

90

64

55

52

48

71

248

122

87

72

75

8S

171

112

82

-

Mining Mean ^fe £

54 81.6 5,02C

39 82.9 5.10C 

48 92.2 5.48C

15,60C

Anderson Creek at Goshen, Wash.

Location.- Water-stage recorder, lat. 48°51'20", long. 122°20'20", in E| sec. 19, T. 39 

N., -H. 4 E., at Goshen, half a mile upstream from mouth.

Records available.- July to September 1948 (discontinued).

Extremes.- Maximum discharge during period, 25 second-feet Aug. 26 (gage height, 1.45

 feet); minimum, 0.4 second-foot Aug. 5, 9-12, 17, 18*; minimum gage height, 0.79 foot 

Aug. 18.

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

 Wo regulation. Some water diverted for irrigation or stock above station.

Discharge, in second-feet, July to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

July

fl.9

1.8

1.6

1.5

1.3

2.6

2.1

1.9

1.6

1.4

al.2

1.0

.9

.8

.8

Aug.

0.6

.5

.5

.6

.4

.6

.6

.5

.4

.4

.4

.4

.6

.&

.7

Sept.

3.6

3.4

11.5

8-6

6.6

4.5

3.6

2.7

2.4

2.1

1.9

1.8

1.6

1.4

1.5

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Month ^, . , Maximum

September...... 147.2 14.5

The period.

July

0.7

.7

.9

1.3

1.0

.9

.8

1.2

.8

.6

.8

1.8

1.3

1.0

.8

.7

Aug.

0.7

.4

.4

.6

1.8

14

10

6.2

14.5

11

10

18

11.5

7.8

5.8

4.9

Sept.

2.4

1.9

1.6

1.6

1.5

1.8

13.5

14.5

10.5

7.4

6.6

7.0

7.0

7.4

5.3

-

. . . Runoff in Minimum Mean acre-feet

07 1 22 75

1.4 4.91 292

616

a No gage-height record; discharge interpolated.

f Computed on basis of partly estimated gage-height record.
NOOKSACK RIVER BASIN 

Fishtrap Creek at Lynden, Wash.

Location.- Water-stage recorder, lat. 48°57'50", long. 122°26'00", on north line sec. 16, 

T. 4U N., R. 3 E., at highway crossing, 1 mile north of Lynden.

Records available.- July to September 1948.

Extremes.- Maximum discharge during period, 18.5 second-feet Aug. 21 (gage height, 1.56 

feet) ; minimum, 4.9 second-feet Aug. 18- (gage height, 1.12 feet), but may l-ave been 

lower sometime during period of no gage-height record.

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 cMmestic use.

Discharge, in second-feet, July to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

July

8.4

8.4

8.2

7.9

7.9

9.6

10

9.6

8.4

8.2

8.2

7.6

7.3

7.3

7.0

Aug.

a

a

a

a

a

a

a

a

a

a

Month

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

September. .......

The period. ....

6.2

6.0

6.0

6.0

6.0

6.0

5.8

5.8

5.6

5.4

5.4

5.2

5.2

5.2

5.4

Sept.

8.4

8.2

9.6

9.9

8.4

7.9

7.3

7.0

6.7

6.7

6.5

6.2

6.5

6.5

6.7

Secondfoot-days

231 3

231.8

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Maximum

11

-

July

6.7

6.5

6.5

6.7

6.7

6.5

6.2

6.5

6.2

6.0

6.0

8.4

7.9

7.3

6.7

6.5

Minimum

5 2

6.2

-

Aug.

a5. 4

5.2

5.2

5.4

6.5

16

14

10

15.5

14.5

11.5

13

11.5

9.9

9.0

8.7

Mean

7 95

7.73

-

Sept.

7.0

7.0

6.7

6.5

6.2

6.5

9.0

11

9.9

8.4

7.6

8.2

8.7

8.7

7.9

-

acre-feet

460

1,410

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

nearby streams.

Note.- Shifting-control method used July 7-3O, Aug. 21 to Sept. 6.

Bertrand Creek near Lynden, Wash.

Location.- Water-stage recorder, lat. 48°55'30", long. 122°31'50", in 3E-J- sec. 27, T. 40 

N., R. 2 E., three-quarters of a mile upstream from mouth and three miles west of 

Lynden.

Records available.- July to September 1948 (discontinued).

Extremes.- Maximum discharge during period, 34 second-feet Aug. 21 (gage height, 1.68 

reet J; minimum, 11.5 second-feet Aug. 13; minimum gage height, 1.07 feet Sept. 16.

Remarks.- Records good. No regulation. Some small diversions for domestic use.

Discharge econd-feet, July to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

July

16.5

16.5

16.5

16.5

16.5

18.5

18.5

17

15.5

15.5

15

15

14

14

14

Aug.

14

13.5

13.5

13.5

13

13.5

13

13

12.5

12.5

12.5

12

12

12

12.5

Sept.

15

15

17.5

19

17.5

15.5

14.5

14.5

13.5

13

13

13

12.5

12.5

13

Month Secondfoot-days

September. ....... 462

The period. ....

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Maximum

19 5

23

-

July

13.5

13.5

14.5

15

14

13.5

13.5

13.5

13

13

14.5

19.5

17

15.5

14.5

14

Minimum

12.5

-

Aug.

12.5

12

12

13

15

29

24

17.5

23

. 25

20

22

21

18

16.5

15.5

Mean

15 Q

15.4

-

Sept.

14.5

13.5

13

13

13

13.5

18.5

23

20

16.5

15.5

16.5

18

18

16.5

-

Runoff in 

acre-feet

935

916

2,820
192 NOOKSACK RIVER BASIN

Tenmile Creek near Ferndale, Wash.

Location.- Water-stage recorder, lat. 48°51'15", long. 122" 32' 25", in NE&SW-T see. 22, T. 

 39 N., R. 2 E., 2 miles east of Ferndale.

Records available.- July to September 1948 (discontinued).

Extremes.- Maximum discharge during period, 14.5 second-feet Aug. 21 (gage height, 2.75 

i'eet); minimum, 5.2 second-feet Aug. 13 (gage height, 1.82 feet).

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

known diversion or regulation.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

Z 

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. Nov. Dec. Jan. Feb.

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Merc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year

ter year .......................

Mar. Apr.

Secondfoot-days

241.9 

260.3 

270.7

-

May

Maximum

9.9 

13.5 

13.0

-

June

Minimum

July

8.4 

8.4 

8.2 

8.2 

8.0

9.3 

9.9 

9.3 

8.9 

8.8

8.4 

8.1 

7.6 

7.1 

6.8

6.6 

6.5 

7.4 

8.4 

7.7

6.9 

6.7 

7.0 

6.9 

6.7

6.8 

8.7 

8.4 

7.7 

7.3 

6.8

6.5 

5.8 

7.5

-

Aug.

6.6 

6.1 

6.4 

6.5 

6.6

6.9 

6.8 

6.7 

6.3 

6.1

5.9 

6.0 

5.B 

6.6 

6.8

7.3 

6.8 

6.0 

6.9 

8.4

13.5 

13 

11 

12.5 

12

11.5 

13.5 

12 

10.5 

9.9 

9.4

Mean

7.80 

8.40 

9.02

-

Sept.

8.8 

9.1 

9.9 

9.4 

8.9

8.5 

8.3 

8.3 

8.0 

7.8

7.5 

S.I 

7.9 

7.6 

8.0

8.4 

8.0 

7.7 

7.7 

7.6

7.9 

11 

13 

12 

10.5

9.S

10.5 

10.5 

10.5 

9.5

Runoff In 

acre-feet

480 

516 

537

1,530

Mote.- Shifting-control method used July 4-30, Sept. 2-20, 24-30.
DAKOTA CREEK BASIN 193

Dakota Creek near Blaine, Wash.

Location- Water-stage recorder, lat. 48°57'2S", long 122°39'30" in NW|SW| sec. 14, T.

 4(J NT, R. 1 E., 3f miles upstream from mouth and 4f miles southeast of Blaine.

Records available.- July to September 1948.

Extremes.- Maximum discharge during period, 13 second-feet Aug 21 (gage height, 1.64

 feet); minimum, 1.7 second-feet Aug. 10 (gage height, 0.82 foot).

Remarks.- Records good except those for Aug. 9-25, which are fair. Probably some small

 diversions for domestic use. No regulation.

Discharge, In second-feet, July to September 1948

Day

8

July

3.2

3.2

3.0

3.0

3.0

3.6

3.6

3.2

Aug.

2.8

3.0

2.8

2.8

2.4

2.8

2.6

2.4

Sept.

3.9

3.6

4.1

4.1

3.9

3.6

3.4

3.2

Day

12

13

16

July

2.8

3.0

2.8

2.6

2.8

2.6

2.6

2.4

Aug.

2.2

1.9

2.1

2.1

2.2

2.6

2.8

2.8

Month

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

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

The period. ............ 

Sept.

3.0

2.8

2.8

2.8

2.6

2.4

2.6

3.0

Day

17

18

19

20

21

22

23

24

Secondfoot -days

95.8 

114.9 

107.0

-

July

2.6

2.6

2.8

2.8

2.8

2.6

3.2

2.8

Aug.

2.6

2.4

2.8

3.2

11

6.4

4.3

6.7

Maximum

5.9 

11.0 

5.1

-

Sept.

3.0

2.8

2.8

2.8

2.8

4.8

5.1

Day

25

26

27

28

29

3O

31

Minimum

1.9 

2.4

-

July

2.£

3.C

5.9

Aug.

5.9

5.9

Mean

3.71 

3.57

-

Sept.

4.1

-

Runoff in 

acre-feet

228 

212

630

FRAZIER RIVER BASIN 

Sumas River near Sumas, Wash.

Location.- Water-stage recorder, lat. 48°58'40", long. 122°15 I 00", in NE^- sen. 11, T. 40 

N., K. 4 E., lj miles south of Sumas.

Records available.- July to September 1948.

Extremes.- Maximum discharge during period, 72 second-feet Aug. 23 (gage height, 2.55 

I'eetJ; minimum, 16.5 second-feet Aug. 12, 13 (gage height, 1.65 feet).

Remarks.- Records good except those for Aug. 21-25, which are fair. No regulation. 

Probably some small diversions for domestic use.

Discharge, in second-feet, July to September 1948

Day

1 

2 

3 

4 

5 

6 

7 

8

July

22 

22 

22 

22 

22 

23 

28 

27

Aug.

19 

18.5 

18 

18 

17.5 

17.5 

18 

17.5

Sept.

35 

32 

32 

45 

35 

29 

26 

24

Day

9 

10 

11 

12 

13 

14 

15 

16

July

24 

23 

22 

22 

21 

21 

20 

19.5

Aug.

17 

17 

17 

16.5 

17 

17.5 

18 

17.5

Month

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

Septembe 

The pe riod ...............................

Sept.

23 

22 

21 

20 

19.5 

18.5 

18.5 

19.5

Day

17 

18 

19 

20 

21 

22 

23 

24

Secondfoot-days

670 

825 

814.5

-

July

19 

19 

21 

22 

2O 

19.5 

20 

22

Aug.

17.5 

17.0 

17.5 

18.5 

24 

50 

62 

37

Maximum

28 

62 

46

-

Sept.

24 

22 

21 

20 

19.5 

24 

45 

46

Day

25 

26 

27 

28 

29 

30 

31

Minimum

19 

16.5 

18.5

-

July

19.5 

19 

21 

24 

22 

22 

19.5

Aug.

59 

50 

42 

53 

37 

30 

29

Mean

21.6 

26.6 

27.2

-

Sept.

35 

28 

26 

28 

28 

28

Runoff In 

acre-feet

1,330 

1,640 

1,620

4,590
194 PRAZIER RIVER BASIN

Saar Creek near Sumas, Wash.

Location.- Water-stage recorder, lat. 49°00'00", long. 122°ll'bO", in Ej sec. 31, T. 41 

N., H. 5 E., a quarter of a mile upstream from international boundary and 3 miles east

of Sumas.

Records available.- July to September W48 (discontinued).

Extremes.- Maximum discharge during period, 30 second-feet Sept. 22 (gage height, 2.32 

feet) ; minimum, 0.9 second-foot Aug. 13 (gage height, 1.38 feet).

R'emarks. - Records good. No regulation. Probably some small diversions fcr domestic use.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2

3

4 

5

6 

7 

8 

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 

Apr! 

May

June 

July 

Augu 

Sept

Th

mber. . ........... -------- ..-...-..

lendar year

e period. .........

Mar. Apr.

Second - 

foot -days

79.4 

149.3 

207.1

May

Maximum

5.1 

17 

19.5

June July

Minimum

1.4 

1.0 

2.6

2.8 

2.6 

2.4 

2.4 

2.6

4.8 

5.1 

4.4 

3.2 

2.8

2.6 

2.4 

2.2 

2.0 

1.6

1.6 

1.5 

2.0 

2.6 

2.2

2.0 

1.8 

2.4 

1.6 

1.4

1.5 

4.8 

3.7 

2.6 

2.0 

1.8

Aug.

1.5 

1.4 

1.2 

1.4 

1.4

1.5 

1.4 

.2 

.1 

.0

.0 

.0 

.2 

.0 

.5

.5 

.1 

.0 

.2 

.8

12 

13 

6.8 

15 

10.5

9.1 

17 

10.5 

7.6 

7.9 

13.5

Mean

2.56 

4.82 

6.90

Sept.

9.8 

8.8 

14.5 

10.5 

7.9

6.5 

5.4 

4.6 

4.1 

3.4

3.2

3.0 

2.8

2.6 

2.8

4.6 

3.7 

3.0 

2.8 

2.6

3.0 

19.5 

19.5 

12.5 

9.1

7.6 

7.9 

7.6 

7.6 

6.2

Runoff In 

acre-feet

157 

296 

411

flB4
UPPER COLUMBIA RIVER BASIN 195 

COLUMBIA RIVER MAIN STEM

Columbia River at Birchbank, British Columbia 

(International gaging station)

Location.- Water-stage recorder, lat. 49°1Q' , long. 117°43 I , at Birchbank, British ColumDia, 'I 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.

Records available.- October 1937 to September 1948. April 1913 to September 1937 at site 

at Trail, 7 miles downstream, published as Columbia River at Trail, British Columbia.

Average discharge.- 35 years, 69,330 second-feet.

Extremes . - Maximum discharge during year, 370,000 second- feet June 11 (gage height, 50.62 

reet ) ; minimum, 16,000 second-feet Jan. 30 (gage height, 5.28 feet).

1913-48: Maximum discharge, that of June 11, 1948; minimum observed, 8,940 secondfeet 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.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet)

5.5 

6.0 

6.5 

7.0 

7.5 

8.0

16,800

18,900

21,000

23,100

25,300

27,500

9.0

10.0

12.0

14.0

16.0

18.0

36,700

46,300

56,200

66,700

77,600

21.0

24.0

27.0

30.0

34.0

38.0

95,000

114,500

136,500

160,600

197,300

237,000

42.0 277,500

46.0 319,500

51.0 374,000

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

 1

8

9

1U

11

12

13

14

Ib

16

IV

18

19

21

22

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

47,700

47,200

49,100

52,200

55,000

55,800

57, £00

57,100

56,600

58 , 500

58,700

57 , 200

55,600

55,400

55,100

59,400

64,900

68,600

70,800

77,500

81,000

81,000

81,300 

80,600

79,200

77,900 

74,900 

64,900 

63,400 

59 , 300 

60,300

Nov.

60 , 200

59,100

58,600

57,800

55 , 600

53,100

46,300

51,400

50,800

49,700

41,700

41 , 800

42,600

42 , 600

42,000

41,900

39,600

36,200

34,400

34,000

32,300

33,700

34,000 

33,400

31,900

31,000 

30,200 

30,400 

31,000 

31,100

Dec.

29,300

27,400

27,700

27,100

27,300

26,800

£5,700

25,700

24,300

23,700

24,200

23,500

22,600

23,000

22,700

22,900

25,100

30,000

28,500

25,100

19,100

22,700

22,100 

21,900

20,300

20,600 

21,800 

22,500 

22,300 

21,800 

21,100

Jan.

22,600

23,600

22,300

21,400

21,700

22,000

23,100

24,800

26,000

27,700

24,300

21,700

20,000

20,000

20,500

20,200

20,600

19,800

19,900

18,900

19,200

19 , 800

22,300 

23,400

20,500

18,500 

18,400 

18,900 

19,400 

19,700 

19,700

Calendar year 1947 .........

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

May

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

Water year 1947-48 ..........

Feb.

18,600

18,900

18,200

18,800

18,900

18,500

18,300

17,600

17,900

17,600

17,500

17,500

16,900

17,200

17,600

17 , 500

19,000

23,800

28,900

20,600

18,900

20,000

20,200 

20,000

19,700

19,300 

21,000 

22,000 

21,100

Secondfoot-days

1,258,400

27,745,700

1,870,400

29,802,000

Mar.

21,400

21,500

21,100

20,400

20,100

20,200

20,200

20,400

?0,000

19,700

17,300

17,800

18,200

19,400

20,000

20,700

21,000

21,300

20,400

21,000

20,100

21,000

23,100 

23,100

22,100

20,900 

20,200 

18,900 

18,600 

18,400 

18,300

60,200

236,000

294 000

85,400

369,000

Apr.

18,600

19,200

19,200

19,600

20,000

20,100

20,200

20,200

19,800

19,300

19,700

19,600

19,4OO

19,700

20,400

21,400

24,100

25,700

28,100

31,100

34,400

38,100

41,400 

43,600

46,100

47,700 

49,400 

51,200 

52,400 

54,900

May

57,000

58,900

60,300

62,500

64,000

65,200

67,000

68,600

70,300

72,200

74,300

77,000

80,500

83,200

86,000

89,300

93,100

97,500

102,000

109,000

120,000

131,000

146,000 

164,000

185,000

204,000 

227,000 

249,000 

268,000 

282,000 

294,000

14,700

46,100

16,900

June

303,000

310,000

323,000

328,000

334,000

339,000

346,000

355,000

365,000

369,000

363,000

356,000

349,000

338,000

331,000

324,000

317,000

503,000

296,000

283,000

275,000 

266,000 

258,000 

230,000

244,000

41,900

76,000

29 500

62,300

81,400

July

£38,000

231,000

215,000

206,000

198,000

190,000

183,000

177,000

170,000

163,000

153,000

148,000

143,000

130,000

126,000

123,000

124,000

124,000 

123,000 

1.21,000 

1.19,000 

117,000 

116,000

Per

mile

1.86

] .23

2.24

9 35

2 1*8391

2.39

Aug.

114,000

110,

103,t__

inn

inn

103,000

110.0OO

103,

103,

inn -inn

103,000

lot, ooo

97 '00

91,900

9-3, (

93, inn__

91,700

92,£__nn

92,200

89,500

83,300 

83,800 

92,100 

91,000 

91,800 

92,100

Sept.

83 , 800

79,300

72,800

69,300

68,000

60,900

58,900

53,700

58,300

50,600

48,300 

47,800 

46, 6OO 

47,300 

46,100

Runoff

Inches

2.14

1.37

30.36

2.04

32.59

Acre-feet

,894,000

,496,000

5 ,030,000

,710,000

59,110,000
196 COLUMBIA RIVER MAIN STEM

Columbia River at international boundary 

(International gaging station)

Location.- Water-stage recorder, lat. 49°00'03", long. 117°37'40", in SE£ soc. 4, T. 40

 N., R. 41 E., at international boundary, half a mile downstream from Perrf Oreille 

River. Auxiliary water-stage recorder 2.2 miles downstream. Datum of gages is at 

mean sea level (Bureau of Reclamation 1937 datum).

Drainage area.- 59,700 square miles.

Records available.- March 1938 to September 1948.

Average aiscnargeT- 10 years, 90,180 second-feet.

Extremes.- Maximum discharge during year, 550,100 second-feet June 12 (elevation, 1,338.13

 feet); minimum, 28,900 second-feet Feb. 7 (elevation, 1,292.02 feet).

1938-48: Maximum discharge, that of June 12, 1948; minimum, 20,700 second-feet 

Mar. 9, 1944 (elevation, 1,289.91 feet).

Plow of about 12,900 second-feet occurred Jan. 30 or 31, 1937, based on 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. Discharge computed by using fall as determined by auxiliary 

water-stage recorder as a factor. Many diversions above gage for irrigation but quantity very small percentage of flow past gage. Some fluctuation at low flor 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 

United States under agreement with Canada.

Revisions (water years).- W 932: 1937(m), 1936(M), 1939(m).

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

59,700

59,000

60,900

64,000

67,100

68,400

70,000

70,300

69,300

71,900

72,700

71,100

69,700

69,900

69,900

76,200

82, 700

87,300

92,000

99,700

104,500

104,800

105,700

105,700

106, 100

106,500

104, 600

101,400

95,200

90,300

91,400

Nov.

91,600

90,200

88,200

87,000

84, 600

81,500

75,900

77,700

77,200

74,300

67,300

66,900

67,500

67,600

67,300

67,000

65,600

61,900

59,200

58,900

58,400

58,000

57,900

57,100

54,900

53, 700

52,100

52,000

52,200

52,700

-

Dec.

50 , 500

47 , 500

47,900

46,800

46,900

45,900

44,400

44,100

42,800

40,100

41,400

40,000

38,900

39,700

39,200

39,700

41,200

48,100

47,900

43,500

41,800

41,200

40,500

40, 500

38,500

38, 700

39,600

40,700

40,600

39,800

39,200

Jan.

40,500

41,800

40,700

39,500

40,000

40,400

41,600

44, 800

46,000

47,300

44,800

41,800

40,200

40, 500

40,800

40,300

40,200

39,600

39,200

38,300

37,800

38,100

42,900

43,000

39,700

38,500

37,600

38,400

38,300

38,600

38,300

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

37,200

37,500

36,800

37,100

36,300

34,000

30,400

32,000

33,000

35,500

34,100

34,200

34,300

34,600

34,700

34,500

35,500

41 , 100

42,500

39,600

37,400

38,600

38,500

38,500

38,100

38,100

39,200

41,000

40,200

-

Seccndfoot-days

2,568,000

2,026,400

1,317,600

40,095,400

1,259,500

1,064,500

1,163,600

1,715,600

6,393,900

14,321,100

6,475,500

3,811,500

2,248,800

44,366,000

Mar.

40,500

40,500

40,500

40,000

39,500

39,400

39,200

39,000

38,500

38,700

35,800

35,400

35,500

36,300

36,100

37,300

36,800

37,600

36,000

36,500

35,600

36,000

38,300

39,000

39,000

37,300

36,900

35,700

35,500

35,500

35,700

Maximum

106,500

91,600

50, 500

321 * 700

47,300

42,500

40,500

104,100

443,900

548,600

348,300

143,900

101,600

548,600

Apr.

36,000

36,900

37,900

38,000

39,000

39,000

39,500

39,700

39,500

39,400

39,800

39,600

39,600

39,700

40,600

43,900

48,800

51,700

55, 500

60,500

65,900

73,800

79,200

82,600

86,900

90,100

93,000

96,000

99,400

104,100

May

106,600

108, 700

111,200

116,100

118,300

120,500

125,100

127,800

131,100

134,800

138,500

142,400

149,700

154,100

157,600

162,800

169,700

175,800

182,600

194,700

209 , 000

222,800

241,100

264,700

290,000

318,900

353,200

386,500

409,300

426,400

443,900

Minimum

59,000

52,000

38,500

34,900

37,600

30, 400

35,400

36,000

106,600

360,300

145,800

107,900

56,100

30,400

June

459,100

470,100

481,400

488,800

494,300

499,200

506,700

516,600

527,400

541,900

548,600

548,500

542 , 400

533,400

525,200

516,900

509,600

499,300

489,600

477,900

466,700

455,200

445,600

434,000

422,200

409,100

395,600

383,900

371,600

360,300

Mean

82,840

67,550

42,500

109,900

40,630

36,710

37,540

57,190

206,300

477,400

208,900

123,000

74,960

121,200

July

348,300

336,900

321,300

306,700

291,200

276,1:00

263,100

250,800

238,600

229,400

221,000

211,700

203, 600

196,000

190,300

186,300

181,700

177,300

172,000

165,800

162,400

160,100

158,700

158,000

157,900

156,800

155,600

153,800

150,700

147,500

145,800

Per

square 

mile

1.39

1.13

.712

1.84

.681

.615

.629

.958

3.46

8.00

3.50

2.06

1.26

2.03

Aug.

143,900

141,

140,

139,

000

200

200

138,900

139,300

139,

137,

135,

000

500

600

133,300

130,

125,

125,

122,

100

400

300

DOO

119,200

M6,600 '16,

 16,

M6,

200

700

200

113,600

~14,000

113,

112,

111,

300

500

500

108, 700

107,900

108,

110,

112,

113,

300

300

500

200

109,400

Sept.

101,600

99,900

98,400

95,800

94,500

92,000

89,600

87,200

82,800

81,100

79,200

74, 700

73,600

73,500

71,200

69 , 800

6«,700

68,000

67,000

65,100

63,700

63,900

69,100

68,300

61,200

59,000

58,700

57,100

58,000

56,100

-

Runoff

Inches

1.60

1.26

.82

24.97

.78

.66

.72

1.07

3.98

8.92

4.03

2.37

1.40

27.61

Acre-feet

5,094,000

4,019,000

2,613,000

79,520,000

2,498,000

2,111,000

2,308,000

3,403,000

12,680,000

28,410,000

12,840,000

7,560,000

4,460,000

88,000,000
COLUMBIA RIVER MAIN STEM 197

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

Location.- Water-stage recorder, lat. 47°57 I 20", long. 118°59 I 10", in lot 3, sec. 1, T. 

2b N., R. 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 1948.

Extremes.- Maximum contents during year, 9,667,400 acre-feet May 12 (elevation, 1,290.15 

reet); minimum, 8,772,100 acre-feet Feb. 16 (elevation, 1,279.13 feet).

1938-48: 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).

Remarks.- Reservoir formed by concrete dam; construction of dam began in 1934, completed 

in 1941; storage began early in construction period. Capacity, 5,118,000 acre-feet 

between elevations 1,208 feet (proposed lower limit of operation) and 1,288 feet (top 

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 an1 will be 

used for irrigation of Grand Coulee project of Bureau of Reclamation.

Cooperation.- Gage-height record and reservo'r areas furnished by Bureau of Reclamation.

Elevation at 8 a.m.. In feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

87.69

87.78

87.94

88.13

88.31

88.57

88.92

89.15

89.53

89.76

89.85

89.75

89.72

89.80

89.90

89.87

89.96

89.90

39.71

89.92

90.05

89.84

89.85

89.81

89.80

89.83

89.93

89.82

89.86

89.78

89.90

Nor.

89.79

89.87

89.87

89. 82

89.80

89.80

89.82

89.67

89.86

89.82

89.82

89.69

89.81

89.87

89.99

89.96

89.89

89.77

89.80

89.84

89.89

89.89

89.87

89.84

89.47

89.75

89.80

89.93

89.97

89.94

-

Dec.

89.86

89.81

89.84

89.92

89.95

89.93

89.90

89.75

89.81

89.89

89.85

89.87

89.76

89.72

89.61

89.61

89.48

89.56

89.82

89.95

89.87

89.87

89.85

89.68

89.65

89.54

89.50

89.33

89.28

89.34

89.30

Jan.

89.29

89.21

89.21

89.05

89.01

88.94

99.10

89.36

99. 7O

89.87

83.90

89.90

89.79

89.84

89.96

90.00

89.87

89.66

89.43

89.28

89.17

89.02

88.84

89.77

88.67

88.48

88.27

88.06

87.94

87.76

87.39

Feb.

86.99

86.53

86.05

85.61

85.28

84.84

84.08

83.29

82.57

81.98

81.50

81.03

80.54

80.01

79.58

79.22

79.17

79.32

79.77

79.88

80.05

80.21

80.53

80.74

80.85

81.00

81.40

81.76

82.15

_

-

Mar.

82.47

82.81

83.17

83.40

83.45

83.46

83.55

83.58

83.61

83.56

83.56

83.38

83.09

82.88

82.58

82.39

82.19

82.04

81.92

81.73

81.45

81.05

80.75

80.98

80.94

80.99

80.95

80.90

80.75

80.83

81.01

Apr.

81.11

81.30

81.40

81.60

81.95

82.11

82-. 20

82.22

82.18

82.20

82.12

82.30

82.48

82.59

82.75

82.91

83.26

83.75

84.57

85.40

86.25

87.02

87.70

88.08

88.23

88.29

88.23

88.33

88.43

88.63

May

88.70

88.85

88.93

88.86

89.07

89.21

89.40

89.86

89.92

89.95

89.93

90.02

89.84

89.71

89.80

80.86

33.86

89.90

89.99

89.93

89.97

89.99

89.96

89.99

90.05

90.01

90.00

89.73

90.08

89.92

89.94

June

89.94

90.00

90.08

89.98

90.00

89.90

89.95

90.01

89.97

90.00

90.03

90.03

89.95

89.95

89.97

39.93

90.03

90.05

89.89

90.02

89.91

90.05

90>05

89.93

89.95

89.96

89.95

89.95

89.90

89.96

July

89.94

89.92

89.92

89.85

89.97

89.90

89.90

89.90

89.89

89.98

89.93

89.90

89.87

T19.95

89.94

89.92

89.90

89.87

89.91

89.83

89.91

99.93

89.96

89.95

89.87

89.94

89.95

89.92

89.84

89.86

89.83

Aug.

89.86

89.86

89.84

89.91

89.95

89.90

89.97

89.85

89.80

89.85

89.85

89.83

89.87

89.87

89.85

89.87

89.94

89.91

90.03

89.89

89. 92

89.95

89.95

89.98

89.93

89.91

89.92

89.94

90.01

89.91

89.99

Sept.

89.88

89.83

89.87

89.93

89.93

99.88

89.86

89.87

89.83

89.87

89.84

89.87

89.83

89.86

89.87

89.94

89.87

89.86

89.66

89.52

J9.54

89.49

89.64

89.79

89.73

89.60

89.64

89.67

89.61

89. 7C

Kote.- Add 1,200 feet to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1947 to September 1949

Date

Dec. 31......... ..........

Calendar year 1947......

Sept. 30.. .................

Water year 1947-48......

Elevation 

(feet)t

1,289.9

1,289.3

-

1,289.9

1,289.9

1,289.8

-

Contents 

(acre-feet)

9,456,200

9,646,700

9,fi46,700

9,596,900

-

9,415,200

9,023,300

8,919,000

9,547,100

9,646,700

9,646,700

9,646,700

9,655,000

9,638,400

-

Change in contents 

during month 

(acre-feet)

_

+190,500

0

-49,800

+124,300

-181,700

-391,900

-104,300

+628,100

+99 , 600

0

0

+8,300

-16,600

+182,200

t Elevation at 12 p.m.
COLUMBIA RIVER MAIN

Columbia River at Grand Coulee Dam, Wash.

Location.- Water-stage recorder, lat. 47°58'00", long. 118°58'4b", opposite lot 4, sec. 36,

 T. ^9 N.., R. 30 E., In pier 3 of highway bridge at Grand Coulee, 2,500 feet downstream 

from Grand C»ulee Dam and 14 miles upstream from Nespelem River. Datum of gage is at 

mean sea level, datum of 1929.

Drainage area.- 74,100 square miles.

Keeords available.- April 1913 to September 1948 (monthly discharge only, April 1913 to 

June 1923, January 1924 to May 1928).

Average discharge.- 35 years, 106,600 second-feet (adjusted for change in contents in 

Franklin JJ. Roosevelt Lake beginning October 1939).

Extremes.- Maximum discharge during year, 637,800 second-feet June 12 (elevation, 987.90 

reet) ; minimum, 38,100 second-feet Feb. 22 (elevation, 937.61 feet).

1913-48: Maximum discharge, that of June 12, 1948; minimum may have been less than 

15,30'j 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 flooi of June 1894.

Remarks - Records excellent. Diversion above station for irrigation is small percentage 

or flow past gage. Flow regulated by Franklin D. Roosevelt Lake (see preceding page) 

and reservoirs in Kootenai, Pend Oreille, and Spokane River Basins.

Rating table, water year 1947-48 (elevation, in feet, 

and discharge, in second-feet)

938.0 

939.0 

940.0 

941.0 

942.0 

944.O

4 >,000 

45,000 

50,200 

55,800 

61,600 

74,000

946.0

948.0

950.0

952.0

954.0

957.0

87,300

101,300

116,900

132,900

150,300

177,300

960.0

963.0

966.0

969.0

972.0

975.0

207,000

239,000

274,000

313,000

353,000

396,000

978.0 443,000

981.0 495,000

984.0 554,000

387.r 631,200

Discharge, in second-feet, water year October 1947 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

57,400

57,500

58,500

59,500

60,100

59,900

60,500

60,500

62,900

71,100

77 , 300

76,000

7 4 , 300

68,600

76,600

77,300

90,200

102,200

95,100

103,800

118,300

128, 600

114,300

114,800

116,000

108 , lun

115,100

109,300

106,800

98,400

99,800

Nov.

99,200

94,500

100,000

96, .600

91,200

91,100

aa,, eoo

83,100

79,100

84,300

81,600

74,100

71,200

73,400

72,500

74,500

77,300

69,900

64,600

H,4,400

65,200

64,300

63,500

68,400 e.~,4oo

59, 4 JO

52,200

58,400

61,700

61,700

-

Month

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

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

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

Calendar year 1947

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

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

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

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

Nfav way .................

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

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

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

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

Water year 1947-48

Dec.

65,000

59,900

55,800

55,600

56,700

55,200

54,400

51,800

49,100

47,800

50,000

50,100

49,200

50,800

50,200

50,000

50,800

50,700

54,500

63,600

57,000

55,500

53,200

50,200

50,300

5 3 , 400

50,700

49,900

51,300

51,100

50,200

Jan.

49,900

53, 3C

52, 8C

52, 7C

0

0

0

53,200

51,600

50,70

55,20

61,10

0

0

0

64,100

66,400

67,90

59,30

49,50

0

0

0

53,900

58,700

59,70

59,90

59,80

0

0

0

59,000

54,400

54,50

55 , 20

55,10

o

0

0

55,300

54,933

54,80

53,10

50,00

58,70

0

0

0-)

64,600

Feb.

64,600

F4.403

64,300

61,700

59,600

67,000

70,000

70,100

66,400

64,100

61,200

59,500

66,600

58,400

56,600

51,700

43,600

42,000

41,400

40,500

40,eoo

41,000

41,900

45,700

43,200

-12,503

42^500

42,900

42,400

-

-

Mar.

42,400

42,400

42,400

46,000

48,700

49,900

49,700

50,000

49,800

49,800

49,800

52,300

55,800

56,000

55,900

53,600

49,900

50,100

53,100

55,000

54,800

£4,900

53,200

49,700

50,100

5u , 000

49;900

4:9,700

47,400

43,200

43,800

Observed

Discharge In 

second-feet

Maximum

128, eo;

100,000

65,000

545,000

67.900

70,100

5F, ,0'X)

143,600

529,000

329,700

557,900

153,700

114,500

=29,700

Minimum

57,4>X

52 , 20C

47,flOQ

39,luO

49,500

40,500

42,400

44,600

51,400

71,301

58,000

13 ,200

57*500

40,500

Mean

86,430

74,880

52,940

120,300

56,430

53,660

49,980

72,940

268,400

528,600

221,300

131,100

73,410

139, £00

Runoff

in 

acre-feet

5 , 315 , 00

4,456,OOC

3,255,OOC

S7,090,OOC

3,470,OOC

3,OS7,OOC

3,073,OOC

4,340,OOC

16,500,OOC

31,450,OOC

13,610,OOC

8,059,OOC

4,T25,OOC

L01,300,OOC

Apr.

44,600

44,800

44,600

44,600

45,200

50,900

55,500

55,600

55,500

55,600

52,100

50,500

50,500

50,400

50,100

50,000

50,100

50,200

53,200

56,700

66,400

82,000

95,500

124,900

130,700

133,900

131,700

133,100

135,700

143,600

-

May

153,600

156,800

158,000

151,400

Ib 1,100

161,600

158,200

173,100

189,000

185,600

193,000

189,200

224,300

213,600

216,800

221,600

223,300

228,500

244,400

254,40i

272,000

304,400

319,600

351,900

379,100

407,700

439,200

453,600

493,700

512,300

529,000

June

535,500

546,000

55 J, 900

566,500

572,700

574,800

573,200

585,800

598,200

617,100

621,500

629,700

614,700

590,300

574,600

566,600

555,700

557,500

533,800

519,900

495,100

482,900

468,200

465,800

441,200

431,800

41fa , 3> 10

393,800

388,200

374,300

-

July

357,900

346 , 600

338,000

313,900

309,100

287,100

177, 800

264,500

256,200

246,600

235,700

225,900

218,200

211,800

203,300

198,300

192,300

184,000

186,500

174,400

172,300

172,600

165,900

172,600

164,700

169,300

161,9'jO

171,400

163,500

159,000

158,000

Aug.

153,200

15

14

14

3,7i"3

7,200

8,000

147,600

149,000

15

15

14

2,700

2,800

3,800

143,600

141.300

13

13

13

6,300

3,100

3,800

123,100

123,600

12

11

12

2,300

6,100

6.000

120,900

122.900

11

12

11

9,400

1,100

8.400

116,700

114.100

11

11

11

11

5,100

3,200

9,100

7,400

117,800

Sept.

114,500

102,400

100,200

100,700

98,400

97,900

95,800

93,000

80,500

86,700

83,400

79,200

77,100

73,600

73,500

74,000

74,000

78,600

76,200

69,100

66,000

65,600

67,000

71,200

69,600

66,000

62, Bu i

61,200

58,600

57,500

Adjusted for change in

Change in

contents in 

Franklin D. 

Roosevelt

Lake 

(acre-feet)

+190,500

) 0

1 -49,800

+124,300

-181,700

-391,900

-104,300

+K28.100

+99,600

0

0

+8,300

-16,600

+182,200

reservoir co

Runoff

in 

acre-feet

5,506,000

4,456,000

3,205,000

87,220,000

3,288,000

2,695,000

2,969,000

4,968,000

16,600,000

31,450,000

13,610,000

8,067,000

4,708,000

LJl,500,000

ntent s

Discharge in 

second-feet

Mean

74JS80

52,120

120,500

53,470

46,850

48,290

83,490

270,000

528,600

221,300

131,200

79,120

139,800

Per 

square

mile

1.89

Runoff

in 

inches

25.69

Note.- Monthly runoff per square mile and depth in inches not computed because of large upstrea 

regulation in Kootenai, Pend Oreille, and Ppokane River Basins.
COLOMBIA RIVER MAIN STEM 199 

Columbia River at Trinidad, Wash.

Location.- Water-stage recorder, lat. 47 0 13'30", long. 120°00i50", in SE£ sec. 13, T. 20 

W., R. 22 E., half a mile southwest of Trinidad, 8| 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 1948. January to December 1910 (gage heights 

only), 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 Wenatehee; 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 Vernlta.

Average discharge.- 35 years, 116,200 second-feet.

Extremes.- Maximum discharge during year, 692,600 second-feet June 12 (gage height, 69.35 

reetj; minimum, 42,100 second-feet Feb. 29 (gage height, 20.27 feet).

1913-48: Maximum discharge, that of June 12, 1948; minimum, 4,120 second-feet Feb. 

10, 1932 (gage height, 11.40 feet).

Maximum discharge "known, about 740,000 second-feet June 7, 1894 (based on information obtained at other points).

Remarks.- Records excellent. Diversion above station for irrigation is small percentage 

or now 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.197) and 

reservoirs in Kootenai, Pend Oreille, Spokane, Okanogan, and Chelan River Basins

Rating table, water year 1947-48 (gage height, In feet 

and discharge, In second-feet)

20.7

21.3

22.0

23.0

24.0

26.0

44,700

48,300

52,500

59,500

66,500

82,500

28.0

30.0

32.0

34.0

36.0

38.0

99,500

118,800

140,600

164,600

190,700

219,100

40.0

42.0

44.0

46.0

48.0

51.0

250,100

383,300

319,300

357,800

398,900

466,400

54.0

57.0

59.4

540,900

622,800

694,100

Discharge, In second-feet, water year October 1947 to September 194?

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

62,400 

62,600 

62,800 

64,700 

64,900

65,000 

64,800 

65,500 

66,100 

68,300

75,600 

81,100 

80,300 

79,100 

74,300

81,900 

83,990 

96,700 

108,600 

105,700

113,300 

128,600 

130,700 

120,600 

119,700

120,200 

113,800 

119,400 

115,300 

111,600 

104,000

Nov.

107,200 

105,400 

101,700 

105,400 

102,400

96,800 

97,200 

94,300 

87,900 

86 , 500

90,100 

88,700 

82,700 

79,500 

80,600

79,000 

80,600 

83,700 

78,100 

71,800

70,500 

71,300 

70,300 

68,700 

73,600

69,300 

66,100 

60 , 500 

63,300 

66,300

Dec.

67,100 

71,500 

66,900 

62,400 

61,800

62,200 

66,100 

60,500 

58,300 

55,000

53,300 

55,200 

55,600 

54,800 

5%, 600

55,600 

55,600 

56,100 

56,100 

58,900

67,600 

62,700 

61,400 

59,700 

55,200

54,700 

55,200 

54,700 

54,600 

56,200 

55,200

Jan.

55,400 

54,700 

57,900 

57,700 

58,400

58,300 

57 , 600 

55,900 

59,400 

65,000

68,900 

70,100 

71,900 

65,200 

55,300

57,400 

62,500 

64,100 

64,500 

65,200

67,400 

61,100 

60,600 

62,900 

63,400

63,500 

62,900 

'61,700 

58,400 

55,500 

62,100

Feb.

69,300 

69,900 

71,500 

71,400 

67,300

64,500 

70,700 

75,100 

75,400 

72,600

69,200 

66,700 

64,400 

69,700 

65,400

63,000 

59,600 

51,100 

48,400 

46,700

44,900 

45,300 

45,700 

46,900 

49,300

47,900 

46,700 

46,500 

45,700

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

45,900 

46,600 

46,300 

46,300 

48,400

51,500 

53 , 300 

54,200 

54,600 

54,500

54,200 

53,800 

54,300 

59,400 

59,900

60,600 

59,200 

54,600 

54,400 

56,600

59,200 

60,000 

60,100 

58,200 

54,300

54,200 

54,000 

53 , 500 

53,700 

53,200 

48,400

Apr.

49,400 

49,300 

49,600 

49,100 

48,800

49,800 

54,300 

59,700 

60,300 

60,300

59,900 

57 , 500 

55,300 

55,200 

55,200

55,600 

56,700 

57,200 

57,400 

61,000

65,100 

75,800 

91,200 

107,400 

133,900

140,800 

143,200 

141,100 

143,100 

146,400

Secondfoot -days

2,811,500 

2,479,500 

1,826,800

48,060,100

1,90,4,900 

1,730,800 

1,677,400 

2,289,600 

8,854,500 

17,719,300 

7,719,400 

4,528,500 

2,753,600

56,295,800

May

154,200 

162,700 

163,900 

166,600 

164,200

171,400 

172,800 

170,200 

188,500 

199,900

200,400 

205,800 

210,700 

233,600 

228,400

232,000 

236,700 

238,000 

246,600 

263,500

277,600 

299,800 

336,200 

360,200 

395,100

426,400 

461,400 

513,600 

557,400 

611,000 

605,700

Maximum

130,700 

107,200 

71,500

367,200

71,900 

75,400 

60,600 

146,400 

611,000 

689,900 

409 , 800 

171,300 

130,200

689,900

June

609,800 

612,000 

614,400 

624,600 

627,000

637,000 

639,700 

641,900 

658,500 

667,600

685,700 

689,900 

682,700 

663,900 

641,100

625,200 

620,100 

613,600 

606,200 

585,400

571,800 

550,300 

535,400 

519,800 

502,000

486,600 

476,000 

460,700 

445,000 

425,400

July

409,801 

392,00") 

376,80") 

361,40-) 

337,50")

332,80-) 

312,600 

304 , 500 

281,900 

273,600

268,000 

257,600 

248,300 

236,800 

230,500

223, 6CO 

218, SCO 

213, 2CO 

206, SCO 

205, 7CO

195, 6CO 

191, SCO 

189, 6CO 

185, 2CO 

189, 3CO

181, 3CO 

18'2,6CO 

178, SCO 

184, 3CO 

176,100 

173, 2CO

Minimum

62,400 

60,500 

53,300

46 , 400

54,700 

44,900 

45,900 

48,800 

154,200 

425,400 

173,200 

126,300 

68,400

44,900

Aug.

171,300 

169/200 

167,500 

163,200 

163,600

162,800 

163,800 

167,200 

165,700 

157,500

156,900 

'153', 900 

149,500 

146,000 

146,400

137,300 

137,100 

136,400 

131,000 

139,600

134,800 

135,400 

133,200 

134,100 

132,700

129,400 

127,200 

128,100 

126,300 

131,400 

130,000

Mean

90,690 

82,650 

58,930

131,700

61,450 

59,680 

54,110 

76,320 

285,600 

590,600 

249,000 

146,100 

91,790

153,800

Sept.

130,200 

126,000 

114,600 

112,600 

111,900

109,600 

108,700 

106,400 

103,600 

99,300

97,300 

94,300 

89,400 

87 , 300 

84,300

83,400 

86,900 

86,900 

84,900 

80,400

78,000 

75,900 

75,300 

76 t 900 

80^900

80,300 

76,700 

72,100 

71,100 

68,400

Runoff In 

acre-feet

5,577,000 

4,918,000 

3,623,000

'951320,000

3,778,000 

3,433,000 

3,327,000 

4,541,000 

17,560,000 

35,150,000 

15,310,000 

8,982,000 

5,462,000

111,700,000

939922 O- 51 - 14
200 KOOTENAI RIVER BASIN

Kootenay River at Newgate, British Columbia 

(International gagin/i station)

Location.- Water-stage recorder, lat. 49°01', long. 115°10', at old highway bridge site, 

0. 'I mile northwest of Newgate and 0.9 mile north of international boundary.

Drainage area.- 7,660 square miles.

Records available.- October 1930 to September 1948.

Average discharge.- 18 years, 9,602 second-feet.

Extremes.- Maximum discharge during year, 98,200 second-feet May 28 (gage height, 15.02 

feet), supersede figures published in Water-Supply Paper 1080, "Floods of May-June 

1948 in Columbia River Basin;" minimum daily, 1,910 second-feet Feb. 10.

1930-48: Maximum discharge, that of May'28, 1948; minimum observed, 994 secondfeet Feb. 7, 1936; minimum gage height observed, 0.21 foot Jan. 11, 1944.

Remarks.- Records good. 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 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6,870

6,760

6,660

6,870

8,540

10,300

9,680

8,970

8,720

8,780

9,340

9,080

8 , 720

8,590

8,970

10,600

15,400

16,100

17,900

22,400

20,800

18,000

16,100

14,600

13,200

12,200

11,700

11,300

11,200

11,000

10,700

Nov.

10,300

10,100

10,100

9,870

9,680

9,140

8,720

8,460

8,380

8,120

7,900

7,710

7,490

7,690

7,220

6,940

6,620

6,390

6,190

6,140

5,880

5,420

5,400

5,400

5,590

5,730

5,590

5,420

5,040

4,720

-

Dec.

,720

,650

,780

,800

,780

,430

,270

,090

,920

,660

,710

,740

,010

,470

,400

,030

,060

,270

,470

,400

,180

,140

,090

,080

,080

,110

,060

,030

,110

3,970

3,630

Jan.

3,480

3,510

3,710

3,690

3,710

3,730

3,660

3,660

3,300

3,300

3,020

2,680

2,510

2,240

2,290

2,380

2,490

2,540

2,520

2,720

2,850

3,040

2,920

2,800

2,670

2,510

2,260

2,320

2,420

2,520

2,460

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

2.34C

2.26C

2.14C

2.00C

2.01C

2.02C

2,03C

2.00C

1,930

1,910

1,950

1,990

2,040

2,270

2,730

2,780

2,870

3,050

3,290

3,200

2,940

2,870

2,870

2,870

2,830

2,880

3,010

3,010

2,920

_

-

Secondfoot-days

360,050

217,350

130,140

4,338,120

89, 910

73,010

210J310

1 242 300

1,' 532J 000

551,400

337,400 

177,700

5,004,020

Mar.

2,810

2,780

2,700

2,610

2,520

2,510

2,590

2,550

2,490

2,500

2,390

2,370

2,430

2,490

2,520

2,580

2,600

2,600

2,580

2,550

2,510

2,640

2,910

2,870

2,770

2,700

2,720

2,770

3,010

3,200

3,180

Maximum

22,400

10,300

4,800

62,000

3,730 

3,290

3,200 

16,000

97,300

71,100

30,300

14,800 

8,240

97,900

Apr.

3,150

3,150

3,180

3,150

3,150

3,050

3,020

2,950

2,940

2,940

2,940

2,940

2,920

2,900

2,970

3,570

5,810

7,420

8,360

9,200

10,400

12,400

13,900

14, 800

14,600

13,500

12,500

11,400

11,100

16,000

May

17,800

17,500

16,200

15,200

14,500

13,600

13,600

14,400

15,100

15,600

15,200

15,000

15,600

17,100

17,400

17,000

17,700

21,100

27,700

36,000

40,500

52,300

71,700

84,900

90,700

93,800

97,000

97,900

94,500

88,000

77,700

Minimum

6,660

4,720

3,630

1,750

2,240

1,910

2,370 

2,900

13,600

30,400 

12,800

8,210 

4,810

1,910

June

70,500

68,100

67,500

68,100

70,200

70,200

69,700

69,900

70,800

71,100

69,800

65,600

55,600

48,700

45,600

44,200

43,400

42,200

38,400

36,300

36,200

36,200

36,500

37 , 000

36,700

35,700

'34,000

32,300

31,100

30,400

-

Mean

11,600

7,240

4,200

11,900

2,900 

2,520

2,660 

7,010

40,100

51,100

17,800

10,900 

5,920

13,700

July

30,300

29,000

27,300

24,600

22,700

21,500

21,000

20,300

19,000

17,600

16,400

15,800

16,010

16,600

16,300

15,600

15,300

15,000

14,800

15,300

15,400

15,000

14,700

14,600

14,600

13,800

12,800

13,200

14,800

16,200

15,900

Per

square 

mile

1.51

95

]55

1.55

* 33

.33

.35

.92

5 24

6 . 67

2. 34

l!42

.77

1.79

Aug.

14,

13,

13,

12,

12,

13,

13,

12,

11,

11,

11,

11,

11,

11,

11,

11,

10,

10,

10,

9,

9,

9,

9,

9,

9,

9,

9,

8,

8,

a,

8,

800

800

500

900

600

100

500

500

800

200

000

000

200

300

400

100

800

400

000

710

770

650

290

320

140

050

140

990

780

450

210

Sept.

8,090

8,240

7,550

7,340

7,040

6,960

6,680

6,380

6,210

6,060

5,920

5,970

5,680

5,750

5,630

5,630

5,730

5,580

5,490

5,380

5,200

5,160

5,100

5,120

5,140

5,040

5,030

4,930

4,860

4,810

-

Runoff

Inches

1.74

1.06

.63

21.03

.44

.36

.40

1.03

6.04

7.44

3.70

1.64 

.86

24.34

Acre-feet

714,100

431,100

258,100

8,605,000

178,300

144,800

163,500 

417,100

2,464,000

3,039,000

1,094,000

353 ', 500

9,926.000

Note.- Stage-discharge relation affected by ice Jan. Z to Feb. 14. Figures of daily discharge 

May 1 to July 31 supersede those published in Water-Supply Paper 1080.
KOOTENAI RIVER BASIN 201

Kootenai River at Libby, Mont.

Location.- Water-stage recorder, lat. 48°24', long. 115°33', in Nw£ sec. 3, T. 30 N., R. 

'JL W., 1,200 feet downstream from highway bridge at Libby and half a mile downstream 

from Libby Creek.

Drainage area.- 10,240 square miles.

Records available.- October 1910 to September 1948.

Average discharge.- 22 years (1912-15, 1917-18, 1928-32, 1934-48), 10,847 second-feet.

Extremes.- Maximum discharge during year, 109,000 second-feet May 28 (gage height, 19.93 

feet); minimum, 2,040 second-feet Feb. 11 (gage height, 0.87 foot).

1910-48; 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 

(stage-discharge relation affected by ice).

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

wnich are fair. No known diversion or regulation above station.

Revisions (water years).- W 1042: 1933.

Rating table, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

0.9 2,100

1.5 3,400

2.0 4,620

3.0 7,370

4.0 

5.0 

7.0 

9.0

10,300 

13,500 

El,400 

30,700

11.0 41,600

14.0 62,100

17.0 85,300

20.0 110,000

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

37,200

37,000

a7,200

a7,500

as, 800

hlO,700

alO,300

39,800

39,300

39,400

h9,880

hlO,300

39,800

3 9 , 300

39,400

312,000

316,000

320,000

325,000

h29,700

h27,400

h23,700

hi 9, 900

318,000

316,000

a!5,000

314,000

a!3,500

313,000

312,600

312,300

Nov.

312,100

al2,000

all, 800

hll,600

all, 200

310,600

alO,200

310,000

39,800

a9,600

39,200

a8,800

a8,600

a8,400

a8,400

h8,120

a7,800

a7,400

a7,200

a7,000

6,890

6,360

6,190

6,140

6,170

6,390

6,450

6,280

6,050

5,770

-

Dec.

5,610

5,530

5,470

5,560

5,610

5,450

5,040

4,830

4,720

4,340

4,310

4,220

4,540

4,800

5,100

4,880

4,620

4,800

5,070

5,230

5,040

4,800

4,750

4,720

4,670

4,700

4,700

4,670

4,650

4.700

4,260

Jan.

4,120

4,120

4,360

4,410

4,260

4,390

4,520

4,490

4,390

4,050

4,120

3,710

3,220

a2,800

*2,420

2,720

2,780

3,000

2,920

3,180

3,620

3,980

4,120

3,980

3,740

3,400

3,250

2,760

2,830

2,940

2,980

Month

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

November .....'.................

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

Calendar year 1947 .........

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

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

Haroh .........................

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

3,000

2,800

2,700

2,700

2,500

2,300

2,350

2,400

2,300

2,200

2,200

2,250

2,310

2,920

3,500

3,710

3,780

4,520

4,720

4,070

3,950

3,830

3,710

3,590

3,590

3,710

4,140

4,220

4,050

-

-

Second 

foot-days

423,980

252,510

151,390

5,216,300

111,580

94,120

106,870

351,400

1,520,500

1,752,900

628 , 300

393,330

208,680

5,995,560

Mar.

3,690

3,590

3,500

3,420

3,380

3,270

3,160

3,330

3,250

2,870

2,940

3,030

3,110

3,110

3,180

*3,310

3,250

3,360

3,310

3,110

3,160

3,470

3,710

3,830

3,690

3,570

3,520

3,640

4,000

4,520

4,590

Maximum

29,700

12,100

5,610

73,400

4,520

4,720

4,590

25,300

109,000

83,100

33,200

17,300

.9,340

109,000

Apr.

4,540

4,780

5,340

5,340

5,180

5,040

4,910

4,830

4,780

4,780

4,800

4,780

4,670

4,590

4,670

5,970

10,100

14,400

16,400

17,500

19,100

22,500

25,300

25,200

23,900

21,800

19,500

17,700

17,600

21,400

-

May

26,100

25,400

23,300

21,800

20,800

20,000

20,800

22,700

24,700

24,400

23,000

22,200

22,900

24,900

25,100

24,300

25,300

29,000

36,500

48,200

57,500

64,600

79,700

90,900

97,700

L02,000

L06,000

L09,000

L07,000

L02,000

92,700

Minimum

7,000

5,770

4,220

2,000

2,420

2,200

2,870

4,540

20,000

33,800

14,300

9,550

5,610

2,200

June

83,100

79,000

77,900

77,900

79,300

79,200

78,600

78,100

g78,700

g79,600

g78,500

g73,700

g66,000

g56,600

52,400

gSl.OOO

g51,200

g49,300

g45,400

g42,600

g41,800

g42,100

g41,900

g42,400

g42,600

541,000

£38,400

536,100

534,700

533,800

-

Mean

13,680

8,417

4,884

14,290

3 599

3*. 246

3 447

11*710

49^050

58,430

20,270

12, 690

6,956

16,380

July

g3?,200

g32,400

g30,800

g28,800

g25,400

g23,700

g23,600

t;23,500

g21,800

g20,600

g!9,600

g!8,700

g!8,600

g!9,000

g!8,900

h!8, 100

h!7,700

317,000

a!6,500

a!7,000

a!7,500

317,500

317,000

316,500

316,500

116,100

115,100

114,300

116,100

118,100

118,700

Per

square 

mile

1 34

'.BZZ

.477

1.40

.351

.317

.337

1.14

4.79

5.71

1^24

.679

1.60

Aug.

g!7,300

g!6,

g!5,

g!5,

500

300

LOO

g!4,600

g!4,600

815, too

100

513^900

g!3,200

g!3,000

12,

12,

is,:

300

900

LOO

13,200

12,900

12, (

12,'

lit"

00

?00

00

11,400

11,300

11,:

11, C 10, e

500

)00

00

10,700

10,600 10,"

10, J 10,;

9,E

00

00

00

80

9,550

Sept.

9,340

9,230

3,910

8,590

8,410

8,210

7,920

7,600

7,400

7,200

7,010

6,920

6,890

6,750

6,670

6,560

6,670

6,610

6,450

6,280

6,080

5,940

5,800

h6, 000

h6,110

h6, 030

h5,910

h5,830

h3,750

h5,610

-

Runoff

Inches

1.54

.92

.55

18.94

.40

.34

39

1 " 27

5 52

6.37

1*43

.76

21.77

Acre-feet

841,000

500,800

300 , 300

10,350,000

221,300

186,700

212,000

697,000

3,016,000

3,477,000

1,246,000

780, ?00

413,900

11,890,000

Peak discharge (base. S6.800 see.-ft.).- May 28 (10 a.m.) 109,000 sec.-ft. 

* Winter discharge measurement made on this day.

a No gage-height record; dlscharge^computed on basis of comparison with other Kootenai River 

stations.

g Computed from graph based on daily wire-weight gage readings.

h Computed from wire-weight gage readings. , -

Note^- Stage-discharge relation affected by ice Feb. 1-12, Mar. 3.
202 KOOTENAI RIVER BASIN

Kootenal River at Leonia, Idaho

Location.- Water-stage recorder, lat. 48°37' , long. 116° 03', in SWir sec. 17, T. 33 N., 

H. 34 W., at Leonia, 450 feet east of Montana-Idaho State line and half a mile upstream from Boulder Creek. 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. - 11,740 square miles.

Records available.- March 1928 to September 1948.

Average discharge.- 20 years, 12,690 second-feet.

Extremes.- Maximum discharge during year, 123,000 second-feet May 28 (elevation, 1,823.40 

feet) ; minimum daily, 2,900 second-feet Feb. 12, 13.

1928-48: Maximum discharge, that of May 28, 1948; minimum, 996 second-feet Dec. S 

1936; minimum elevation, 1,797.56 feet Dec. 10, 1929.

Floods of June 1894 and 1916 reached elevations of 1,824.6 and 1,821.6 feet, respectively, from information by Great Northern Railway Co.

Remarks.- Records excellent except those for periods of ice effect, which are good. No 

diversion or regulation above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

LO

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7,450

7.230

7,480

7,800

8,360

9,590

11,100

10,800

10,400

10,200

10,200

10,500

10,200

9,860

9,770

12,600

16,700

21,400

29,300

35,700

35,600

29,700

24,800

21,500

18,900

17,400

16,300

15,700

15,300

15,100

14,700

Nov.

14,300

14,100

13,800

13,600

13,400

12,800

12,200

11,700

11,400

11,300

10,900

10,500

10,300

10,100

9,880

9,540

9,130

8,840

8,560

8,280

8,060

7,670

7,340

7,320

7,260

7,370

7,500

7,400

7,180

6,880

-

Dec.

6,670

6,5"90

6,430

6,560

6,540

6,460

6,120

6,000

5,820

5,520

5,400

5,190

5,620

5,770

6,040

»6,040

5,820

5,870

6,380

6,480

6,460

6,220

6,100

6,020

5,970

5,940

5,940

5,920

5,900

5,870

5,720

Jan.

5,430

5,600

5,600

5,720

5.640

5,640

5,920

5,920

5,840

5,640

5,480

5,380

5,000

4,300

3,600

3,300

3,600

3,700

4,000

3,900

4,200

4,500

5,040

5,070

5,040

4,850

4,300

4,100

3,500

3,600

3,700

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ...... ...

Feb.

3,600

3,610

3,400

3,300

3,300

3,200

3,000

3,100

3,200

3,200

' 3,000

2,900

2,900

3,100

3,500

4,280

4,600

5,360

6,100

5.82C

5,310

5,120

4,970

4,880

*4,78C

4,880

5,210

5,380

5,260

-

Secondfoot-days

481,640

298,610

lo / , oo J

6,077,640

147,110

120,250

145,580

469,850

1,817,200

1,968,300

690,100

417,440

219,760

6,963,220

Mar.

5,090

5,000

4.880

4,720

4,600

4,490

4,460

4,4bO

4,460

4,120

3,980

4,140

4,190

4,190

4,210

4,260

4,320

4,390

4,390

4,300

4,260

4,830

5,210

5,280

5,190

5,020

4,950

4,970

5,310

5,840

6,070

Maximum

35,700

14,300

6,670

81,600

5,920

6,100

6,070

34,000

122,000

93,600

36,800

18,900

9,680

122,000

Apr.

6,040

6,200

C.780

7,130

6,990

6,800

6,590

6,410

6,350

6,380

6,430

6,380

6,220

6,100

6,150

8,200

14,500

20,700

22,700

24,000

26,200

30,600

34,000

33,500

31 , 200

28.30C

f25,20C

f22,80C

f 23, 200

27,800

-

May

32, 500

31,200

?8,700

27,300

2f,,200

25,200

26,600

29,200

31,900

31,300

29,600

28,600

30,100

32,400

32,200

31,100

33,100

37,400

f 47, 300

f 61, 300

f 7 3, 900

80,800

95,300

f!07,000 rii3,ooo

f 117, 000

r 120, ooo

122,000

119,000

113,000

103,000

Minimum

7 , 230

6,880

5,190

2 , 700

3,300

2 , 900

6,' 040

25,200

37,800

16,300

9,940

6,020

2,900

June

93 , 600

88,600

86,800

86,800

87,300

86,800

85,800

85,100

84,800

85,900

84,600

83,400

75,200

65,200

60,300

59,100

59,900

58,300

53,900

49,300

7,800

7,600

7,000

8,100

8,700

46,800

43,600

41,100

39,100

37,800

-

Mean

15,540

9 954

e'o45

16,650

4,745

4,147

4,696

15,660

58,620

65,610

22, 260

13,470

7,325

19,030

July

36,800

36,200

33,900

30,700

28,600

27,000

26,200

25,800

24,500

23,100

21,700

20,800

20,500

20,800

20,900

19,900

19,200

18,800

18,400

18,800

18,900

18,600

18,200

17,800

17,500

17,300

16,500

16,300

17,600

19,000

19,800

Per 

square 

mile

1.32

.848

.515

1.42

.404

.353

.400

1.33

4.99

5 59

i!go

1.15

.624

1.62

Aug. .

18,

17,

17,

16,

15

15,

16,

16,

14

14

13

13

13

13

13

13

13

12

12

12

11

11

11

11

11

11

11

10

10

10

9

900

800

000

40O

900

bOO

300

000

900

200

900

700

600

700

800

600

300

900

500

000

700

800

500

300

200

000

000

900

700

400

940

Sept.

9,680

9,540

9,280

8,930

8,730

8,480

8,280

8,060

7,780

7,580

7,420

7,290

7,320

7,040

7,040

6,940

6,910

6,960

6,860

6,720

6,610

6,410

6,380

6,300

6,280

6,350

6,250

6,220

6,100

6,020

~

Runoff

Inches

1.53

95

' 59

19.26

.47

.38

.46

1.49

5.76

6.24

2.19

1.32 .'70

22.08

Aore-feet

955,300

592,300

371,700

12,050,000

291,800

238,500

288,800

931,900

3 , 604 , 000

3,904,000

1,369,000

828,000

435,900

13,810,000

Peak discharge (base, 30,000 sec.-ft.).- Oct. 20 (10 

34,2OO sec.-ft.; May 28 (1:30 a.m.) 123,000 sec.-ft.

* Winter discharge measurement made on this day.

f Computed on bas"

Note.- Stage-disc 

discharge May 1-23 supe 

Columbia River Basin."

m.) 38,600 sec. -ft.; Apr. 23 (11 a.m.)

e measurement made on this day. 

is of partly estimated gage -height record.

harge relation affected by ice Jan. 13-22, Jan. 27 to Feb. 15. Pigvres of 

supersede those published in Water-Supply Paper 1080, "Floods of May-June "

daily 

1948 in
KOOTEMI RIVER BASIN 203

Kootenai River at Boom Camp, near Bonners Ferry, Idaho

Location.- Water-stage recorder, lat. 48°42'05", lonr. 116°14'30", in NVJ^ sec. 29, T. 62 

N ., K. 2 E. , 600 feet east of Boom Camp, 3j miles upstream from Bonners Ferry, and 

4 miles downstream from Moyie River. D;itum 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.- October 1927 to September 1948 in reports of Geological Survey.

April lyab to September 1927 in reports of Dominion Water and Power Bureau, Department 

of Mines and Resources, Canada.

Extremes.- Maximum elevation during year, 1,779.87 feet May 28; minimum, 1,766.77 feet

1927-48: Maximum elevation recorded, that of May 28, 1948; minimum, I,7bfa.b3 feet 

Dec. 9, 1936.

Remarks.- Elevations affected by backwater from Kootenay Lake Oct. 21, 22, May 19 to

July 10. Dikes of all drainage districts in Kootenai Valley in United States and two 

in Canada broke between May 23 and June 7, affecting elevations at high stages.

Elevation, in feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

58.0

5G.7

58.3

58.9

59.1

59.4

59.9

59.9

59.7

59.7

59.7

59.8

59.7

59.6

59.6

60.4

61.4

62.5

63.9

65.2

65.7

64.60

63.51

62.76

62.24

61.04

61.55

61.39

61.31

61.26

61.18

Nov.

61.07

61.04

60.90

60.88

60.79

(VI. Cl

60.44

60.32

60.24

60.16

60.04

59.93

59.86

59.80

59.72

59.62

59.48

59.37

59.30

59.20

59.11

_

-

_

-

_

-

_

_

_

-

Dec.

_

-

-

_

-

_

_

_

58.16

58.10

58.03

57.93

58.13

58.20

58.30

58.28

58.20

50.22

58.46

58.47

58.41

58.32

58.27

58.24

58.22

58.21

58.21

58.22

58.20

58.18

58.13

Jan.

57.96

58.09

58.08

58.13

58.07

58.10

58.23

58.21

58.15

58.05

58.04

57.91

57.90

57.77

57.68

57.54

57.38

57.54

57.44

57.33

57.52

57.67

57.78

57.78

57.80

57. 7^

57.60

57.44

57.34

57.18

57.32

Feb.

57.29

57.54

57.46

57.11

57.28

57.06

57.12

57.12

57.36

57.51

57.34

57.17

57.18

57.25

57.60

57.68

57.80

50.20

58.64

58.35

58.00

57.98

57.90

57.88

57.76

57.76

57.77

57.80

50.05

_

-

Mar.

57.87

57.78

57.91

57.87

57.76

57.66

57.50

57.49

57.62

57.67

57.53

57.41

57.33

57.34

57.37

57.37

57.44

57.48

57.47

57.40

57.38

57.71

57.88

57.89

57.82

57.76

57.74

57.81

58.02

58.25

58.35

Apr.

58.32

58.42

58.67

58.78

58.72

58.66

50.57

58.51

58.51

58.53

58.54

50.54

58.45

58.41

58.47

59.44

61.32

62.63

63.15

63.41

63.84

64.71

65.32

65.25

64.82

64.23

63.73

63.17

63.24

64.13

-

May

64.93

64.77

64.26

63.99

63.75

63.56

63.85

64.34

64.90

64.86

64.54

64.34

64^.74'

65.18

65.13

64.96

65.31

66.05

67.60

70.31

73.44

75.24

76.98

78.24

70.80

78.46

79.31

79.59

79.66

79.34

78.77

June

77.90

77.15

76.75

76.60

76.54

76.45

76.30

76.14

76.05

76.12

76.03

75.94

75.28

73.97

72.96

72.36

72.17

71.81

71.21

70.44

69.88

69.58

69.27

69.21

69.20

68.92

68.39

67.85

67.35

66.94

-

July

66.59

66.3?

65.6">

65.24

t4.tr:

64.19

63.91

63.74

63.43

63.10

62.77

62. 5S

62.45

62.43

62.54

62.35

62.19

62.07

61.99

62.09

62.10

62.04

61.92

61.79

61.73

61.71

51.51

61.47

61. 73

62.11

62.29

Aug.

62.11

61.81

61.63

61.49

61.35

61.27

61.42

61.37

61.14

60.96

60.90

60.82

60.79

60.83

60.84

60.78

60.69

60.61

60.49

60.35

60.28

60.31

60.22

60.15

60.15

60.09

60.08

60.06

59.98

59.89

59.78

Sept.

59.70

59.67

59.59

59.47

59.41

55.32

59.26

59. 18

59.10

59.02

58.96

58.90

58.93

58.82

58.81

58.78

58.78

58.80

58.74

58.70

58.65

58.57

58.58

58.53

58.53

56.55

58.52

58.51

58.43

58.40

-

Note.- Add 1,700 feet to obtain elevation above mean sea level. Elevations Oct. 1-21 approximate 

only because of sluggish Intake. No gage-height record Nov. 22 to Dec. 8; range 1,758.00 feet to 

1,759.07 feet.
204 KOOTENAI RIVER BASIN

Kootenai River at Bonners Ferry, Idaho

Location - Wire-weight gage, lat. 48"42'00", long. 11C°18'45", In NE£ sec. 27, T. 62 N., 

K. if., on highway bridge at Bonners Ferry. Water-stage recorder 800 feet across 

channel from wire-weight gage at same datum used as supplemental gage during high 

stages. -Datum of gage Is 1,743.00 feet above mean sea level (U. S. Coast & Geodetic 

Survey datum); gage readings have been reduced to elevations above mean sea level.

Drainage area.- 13,000 square miles.

Records available.- October 1927 to.September 1948 (gage heights only prior to March 1928). 

May to October 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.-.20 years (1928-48), 13,690 second-feet.

Extremes.- Maximum discharge during year, 139,000 second-feet May 27 (affected by dike 

breakages downstream); maximum elevation, 1,778.32 feet May 28; minimum dally discharge, 

3,300 second-feet Feb. 12, 13; minimum elevation observed 1,743.06 feet Mar. 22.

1927-48: Maximum discharge, that of May 27, 1948; maximum elevation, that of 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 good. Backwater from Kootenay Lake usually present at Bonners Ferry. Discharge fo" periods of 

backwater at Boom Camp from Kootenay Lake, Oct. 21, 22, May 19 to July 10, computed on 

basis of fall between gages at Boom Camp and near Bonners Ferry; that fo^ remainder of 

year on basis of stage-discharge relation for station at Boom Camp. Discharge measurements made at station near Bonners Ferry. Dikes of all drainage districts in Kootenai 

Valley in United States and two in Canada broke between May 23 and June 7, affecting 

elevations and discharge at high stages. No diversion or regulation abo're station.

Revision.- Mean elevation for June 2, 1948, is 75.47 feet, superseding figure published 

in Water-Supply Paper 1080.

Elevation, in feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

SI

Oct.

47.82

47.46

47.58

47.77

48.04

48.24

48.60

49.16

48.92

48.81

48.79

48.84

48.92

48.73

48.70

49.66

51.44

53.25

55.92

59.38

60.52

58.96

56.96

55.28

54.04

53.04

52.38

51.84

51.62

51.44

51.31

Nov.

51.16

51.04

50.90

50.79

50.61

50.44

50.17

49.90

49.76

49.52

49.38

49.28

49.09'

49.03

48.96

48.88

48.74

48.54

48.44

48.30

48.20

48.12

47.97

47.85

47.86

47.80

47.78

47.76

47.74

47.80

-

Dec.

47.78

47.58

47.50

47.47

47.50

47.48

47.50

47.35

47.26

47.20

47.17

47.15

47.13

47.16

47.14

47.36

47.29

47.24

47.13

47.39

47.40

47.35

47.24

47.15

47.18

47.16

47.15

47.17

47.15

47.14

47.16

Jan.

47.12

46.96

47.05

47.02

47.06

47.10

47.12

47.21

47.16

47.04

46.92

46.78

47.36

47.40

47.46

47.48

47.37

47.40

47.45

47.58

47.60

47.62

47.74

47.76

47.68

47.27

47.33

47.75

47.90

47.94

47.96

Feb.

47.92

47.94

47.80

47.72

47.65

47.64

47.56

47.48

47.50

47.54

47.60

47.64

47.65

47.67

47.70

47.72

47.70

47.68

47.74

47.76

47.76

47.78

47.75

47.52

47.28

47.08

47.02

47.04

47.10

_

-

Mar.

46.85

46.70

46.42

46.06

45.75

45.44

45.46

45.32

45.03

44.67

44.36

44.01

44.24

44.10

44.02

43.78

43.64

43.50

43.35

43.34

43.18

43.06

43.75

43.72

43.61

43.42

43.35

43.36

43.53

43.93

44.08

Apr.

44,11

44.15

44.45

44.77

44.67

44.61

44.46

44.33

44.27

44.32

44.37

44.37

44.24

44.17

44.12

44.83

48.42

51.46

53.10

54.01

54.94

56.69

58.19

58.50

57.95

56.94

55.71

54.61

54.35

55.91

May

57.58

57.82

57.10

56.53

56.13

55.66

56.04

57.02

58.25

58.44

57.99

57.62

58.20

59.15

59.29

59.05

59.58

60.77

63.00

66.70

70.53

72.57

74.26

75.99

76.51

75.77

77.29

77.88

78.10

77.83

77.34

June

76.40

75.47

74.92

74.69

74.57

74.47

74.30

74.14

73.99

74.03

73.97-

73.89

73.34

72.21

71.19

70.55

70.21

69.89

69.32

68.54

67.93

67.54

67.12

66.91

66.78

66.53

66.04

65.41

64.81

64.24

July

63.74

63.29

62.73

61.99

61.14

60.33

59.73

59.17

58.53

57.77

57.01

56.32

55.65

55.28

55.10

54.65

54.14

53.74

53.44

53.42

53.34

53.17

52.88

52.64

52.44

52.31

51.95

51.78

52.08

52.51

52.85

Aug.

52.65

52.20

51.76

51.42

51.13

50.93

51.05

51.08

50.74

50.34

50.11

49.88

49.80

49.75

49.74

49.70

49.54

49.40

49.21

48.96

48.75

48.76

48.64

48.65

48.40

48.31

48.30

48.27

48.19

48.05

47.83

Sept.

47.74

47.73

47.72

47.67

47.63

47.58

47.56

47.50

47.43

47.39

47.34

47.38

47.34

47.34

47.27

47.29

47.35

47.43

47.45

47.42

47.31

47.22

47.23

47.21

47.32

47.18

47.14

47.16

47.14

47.15

Note.- Add 1,700 feet to obtain elevation above mean sea level. Mean daily gage heights are computed from once-daily wire-weight gage readings except those for Oct. 19 to Nov. 22, which are 

computed from twice-daily readings and those for Apr. 18 to Aug. 8, which are computed from recorder 

record adjusted to basis of wire-weight gage.
KOOTENAI RIVER BASIN

Discharge, in second-feet, of Kootenai River at Bonners Perry, Idaho, 

water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7,670

7,470

7,720

8,030

8,640

9,740

11,300

11,100

10,700

10,500

10,6OO

10,9OO

10,700

10,300

10, 200

14,OOO

18,400

23,500

31,500

39,600

39,6OO

32,7OO

28,100

24,000

21,400

19,500

18,200

17,500

17,200

17,000

16,600

Nov.

16,200

16,OOO

15,700

15,400

15,000

14,300

13,600

13,200

12,900

12,600

12,100

11,700

11,500

11,300

11,OOO

10, 600

10,200

9,800

9,570

9,250

8,970

8,800

8,200

8,000

8,000

8,200

8,200

8,100

7,800

7,600

-

Dec.

7,400

7,300

7,200

7,200

7,100

7,100

6,600

6,500

6,320

6,160

5,980

5,740

6,240

6,420

6,680

6,630

*6,420

6,470

7,110

7,140

6,980

6,730

6,600

6,520

6,470

6,450

6,450

6,470

6,420

6,370

6,240

Jan.

5,810

6,140

6,110

6,240

6,080

6,160

6,500

6,450

6,290

6,040

6,010

5,710

5,300

4,700

4,000

3,700

4,000

4,100

4,400

4,330

4,750

5,100

5,360

5,360

5,410

5,220

4,930

4,400

3,900

3,900

4,100

Month

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

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

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

Calendar year 1947 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

4,000

4,000

3,800

*3,600

3,600

3,500

3,450

3,500

3,600

3,700

3,400

3,300

3,300

3,500

4,000

4,700

5,000

6,000

6,700

6,300

5,800

5,600

5,400

5,300

5,310

5,310

5,340

5,410

5,900

-

-

Secondfoot-days

524,370

333, 790

205,410

6,562,350

160,500

132,320

156,420

545,320

1,992,000

2,089,300

716,600

430, 400

226,550

7,512,980

Mar.

5,580

5,360

5,300

5,200

5,000

4,800

4,700

4,680

4,750

4,600

4,400

4,500

4,330

4,350

4,420

4,420

4,570

4,660

4,630

4,480

4,440

5,190

*5,610

5,640

5,460

5,310

5,270

5,440

5,960

6,550

6,820

Maximum

39,600

16,200

7,400

88,200

6,500

6,700

6,820

39,400

130,000

104,000

38,600

19,600

9,900

130,000

Apr.

6,730

7,000

7,700

8,000

7,840

7,670

7,420

7,250

7,250

7,300

7,330

7,330

7,080

6,980

7,140

10,200

17,500

23,600

26,400

27,800

30,300

35,500

39,400

39,200

36 j 500

32,900

29,900

26,700

27,100

32,300

-

May

36,600

35, 600

32,500

30,900

29,500

28,400

30,100

33,000

36,400

36,200

34,200

33,000

35,400

38,200

37,800

36,800

39,000

43,600

49,400

65,300

81,300

87,800

103, 000

111,000

121,000

123,000

128,000

130,000

130,000

123,000

112,000

Minimum

7,470

7,600

5,740

2', 9 00

3,700

3,300

4,330

6,730

28,400

39,900

16,800

10,300

6,160

3,300

June

104,000

97,400

94,500

93,900

93,900

93,500

91,900

90,200

89,500

90,800

89,500

88,600

80,700

69,000

63,200

61,200

61,800

59,400

56,200

52,100

50,500

50,000

48,900

49,700

50, 300

48,700

45,600

43,200

41,200

39,900

-

Mean

16,920

11,130

6,626

17,980

5,177

4,563

5,046

18, 180

64,260

69,640

23,120

13,880

7,552

20, 530

July

38,600

37,900

35,800

32,700

30,100

28,200

27,100

26,400

25,000

23,400

22,800

21,800

21,200

21,400

21,700

20, 800

20,000

19,500

19,100

19,500

19,600

19,300

18,800

18,200

17,900

17,800

17,000

16,800

18,100

19,600

20, 500

Per

square 

mile

1.30

.856

.510

1.38

.398

.351

.388

1.40

4.94

5.36

1.78

1.07

.581

1.58

Aug.

19,

18,

17,

16,

600

300

500

900

16,300

16,

16,

16,

15,

14,

000

600

400

400

700

14,500

14,

14,

14,

100

000

200

14,200

14,000

13,

13,

12,

12,

12,

12,

11,

11,

11,

600

300

900

400

100

200

900

600

600

11,400

11,

11,

11,

10,

400

300

000

700

10,300

Sept.

9,900

9,800

9,540

9,160

8,970

8,700

8,520

8,290

8,060

7,840

7,670

7,500

7,580

7,280

7,250

7,170

7,170

7,220

7,060

6,950

6,820

6,600

6,630

6,500

6,500

6,550

6,470

6,450

6,240

6,160

-

Runoff

Inches

1.50

.95

.59

18.77

.46

.38

.45

1.56

5.70

5.98

2.05

1.23

.65

?1.50

Acre-feet

1,040,000

662,100

407,400

13,020,000

318,300

262,500

310,300

1,082,000

3,951,000

4,144,000

1,421,000

853,700

449,400

14,900,000

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Jan. 13-19, Jan. 28 to Feb. 24, Feb. 29, Mar. 3-6, 

9-11.No gage-height record at Boom Camp Nov. 22 to Dec. 8and ga^e-height record uncertain due to 

sluggish intake Oct. 1-21; discharge computed on basis of records for stations at Leonia and near 

Copeland and intervening tributaries.
206 KOOTENAI RIVER BASIN

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., R. 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.- 13,000 square miles.

Records available.- May 1928 to September 1948.

Extremes.- Maximum elevation during year, 1,776.84 feet May 28; minimum, 1,741.99 feet 

Mar. 21, 22.

1928-48: Maximum elevation, that of May 28, 1948; minimum, 1,740.16 feet Mar. 29, 

1944.

Remarks.- Elevations affected by backwater from Kootenay Lake. Dikes of all drainage 

districts in Kootenai Valley in United States and two in Canada broke between May 23

and June 7, 1948, affecting elevations at high stages.

Elevation, in feet, water year October 1947 to September 1948

Das

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

47.46

47.33

47.50

47.65

47.90

48.80

48.70

48.66

48. 5Z

48.48

48.50

48.53

48.47

48.34

48.30

49.44

51.31

>53.15

55.99

59.08

59.81

58-. 50

56.56

54.92

53.68

52. 12

51.96

51.46

51.18

50.98

50.87

Nov.

50.67

50. 6Z

50.51

50.36

50.18

49.98

49.64

49.46

49.32

49.14

49.OO

48.88

48.73

48.69

48.61

48.50

48.89

48.18

48.09

48.08

47.98

47.78

47.67

47.63

47.59

47.66

47.71

47.68

47.59

47.45

-

Dec.

47.36

47.89

47.87

47.31

47.88

47.85

47.12

47.07

47.04

47.01

47.07

46.95

46.90

46.97

47.14

47.13

47.09

46.99

47.16

47.19

47.11

47.01

46.96

46.96

46.96

46.97

46.98

46.96

47.02

47.08

46.94

Jan.

46.78

46.88

46.85

46.91

46.98

46. 9Z

47.08

46.94

46.87

46.68

46.60

46. 6Z

46.37

46.83

46.13

46.18

46.07

46.08

46.07

46.07

46.20

46.88

46.35

46,88

46.09

45.77

45.68

45.61

45.54

45. 5Z

45.48

Feb.

45.50

45.40

45.84

45.08

44.97

44.84

.44.74

44.75

44.87

44.85

44.74

44.61

44.59

44. 6Z

44.80

44.93

45.13

45.39

45.57

45.31

45.18

45.09

45.00

44.85

44.74

44.74

44.87

44.95

44.79

-

-

liar.

44.67

44.58

44.31

44. 1Z

44.00

43.88

43.77

43.65

43.45

43.21

43.09

43.14

43. 1Z

43.03

48.94

48.84

42.61

48.35

42.33

42. ZO

48.06

48.88

48.68

4Z.64

48.48

48.21

48.14

48.18

48.38

48.73

48.84

Apr.

4Z.87

42.93

43.80

43.56

43.49

43.43

43.87

43.14

43.07

43.13

43.17

43.15

43.03

4Z.99

42. 9S

844.10

47.48

50.55

58.38

53.38

54.80

55.86

57.48

57.79

57.89

56.88

55.18

54.05

53.70

55.15

-

May

56.83

57.81

56.58

55.95

55.57

55.13

55.47

56.37

57.59

57.85

57.48

57.05

57.61

58.55

58.78

58.47

58.94

60.18

6Z.84

65.65

69.58

71.78

73.84

75.03

75.85

74.44

75.81

76.46

76.65

76.53

76.26

June

75.35

74.54

74.06

73.83

73.81

73.61

73.47

73.30

73.19

73. Z3

73.17

73.08

78.60

71.68

70.68

70.08

69.69

69.38

68.80

68.11

67.48

67.04

66.67

66.46

66.34

66.10

65.65

65.07

64.48

63.89

-

July

63.40

68.98

68.42

61.69

60.90

60.14

59.54

58.94

58.27

57.63

56.76

56.08

55.40

55.02

54.84

54.38

53.87

53.47

53.16

53. 1Z

53.04

58.87

5Z.61

5Z.33

5Z.17

58.08

51.68

51.44

51.70

58.14

58.40

Aug.

5Z.83

51.78

51.33

51.00

50.70

50.58

50.62

50.66

50.84

49.86

49.66

49.48

49.40

49. 3S

49.31

49.30

49.15

48.94

48.75

48.53

48.37

48.40

48.86

48.04

47.96

47.94

47.90

47.89

47.80

47.64

47.48

Sept.

47.40

47.37

47.33

47.36

47.37

47.32

47.30

47.24

47.80

47.16

47.13

47.13

47.16

47.13

47.08

47.18

47.18

47. Z7

47.26

47. Zl

47.14

47.07

47.07

47.08

47.14

47.04

46.98

46.99

47.01

47.08

-

a Elevation computed on basis of records for adjacent Kootenai River .stations 

Note.- Add 1,7OO feet to obtain elevation above mean sea level.
KOOTENAI RIVER BASIN 207

Kootenai River at Klockmann Ranch, near Bonners Ferry, Idaho

Location.- Water-stage recorder, lat. 48"47'40", long. 116°22'50", in SE-jj sec. 19, T. 63 

N., 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 1948.

Extremes - Maximum elevation during year, 1,773.82 feet May 28; minimum, 1,741.27 feet

1928-48: Maximum elevation, that of May 28, 1948; minimum, 1,738.76 feet Apr. 1, 

1944.

Remarks.- Elevations affected by backwater from Kootenay Lake. Dikes of all drainage 

districts in Kootenai Valley in United States and two in Canada broke between May 23 

and June 7, 1948, affecting elevations at high stages.

Elevation, in feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

46.94

46.84

46.96

47.10

47.30

47.50

47.84

47.84

47.72

47.69

47.71

47.72

47.65

47.59

47.55

48.42

49.95

-

-

-

.

_

_

53.42

52.21

51.30

50.67

50.20

49.91

49.76

49.66

Nov.

49.50

49.44

49.34

49.22

49.07

48.85

48.60

48.46

48.33

48.19

48.08

47.96

47.89

47.85

47.79

47.71

47.55

47.49

47.40

47.36

47.30

47.22

47.12

47.09

47.05

47.10

47.15

47.12

47.04

46.95

-

Deo.

46.88

46.83

46.82

46.84

46.82

46.80

46.70

46.66

46.61

46.54

46.58

46.54

46.56

-

-

_

-

-

-

-

.

_

_

_

-

_

_

46.61

46.64

46.64

46.58

Jan.

46.49

46.56

46.53

46.52

-

_

-

_

-

46.26

46.21

_

46.05

45.93

45.85

45.84

45.78

45.72

45.73

45.72

45.80

45.87

45.87

45*. 81

45.65

45.42

45.33

45.27

45.17

45.15

45.11

Feb.

45.09

45.00

44.84

44.73

44.66

44.54

44.42

44.42

44.52

44.48

44.36

44.24

44.22

44.21

44.31

44.38

44.52

44.71

44.79

44.57

44.44

44.36

44.29

44.15

44.06

44.04

44.08

44.12

43.96

_

-

Mar.

43.83

43.74

43.55

43.37

43.23

43.15

43.03

42.90

42.72

42.55

42.44

42.46

42.40

42.31

42.19

42.07

41.96

41.79

41.73

41.61

41.43

41.58

41.83

41.76

41.61

41.38

41.29

41.30

41.47

41.71

41.80

Apr.

41.79

41.84

42.06

42.33

42.27

42.23

42.10

41.98

41.93

41.99

42.02

41.99

41.88

41.82

41.82

42.62

a45.80

a48.50

350.30

a51.30'

52.15

53.73

55.30

55.66

55.23

54.34

53.24

52.24

51.88

53.15

-

May

54.75

55.15

54.56

54.03

53.67

53.24

53.52

54.35

55.52

55.79

55.46

55.12

55.56

56.49

56.69

56.48

56.86

57.95

59.85

62.97

66.41

68.46

69.96

71.42

71.43

70.86

72.46

73.22

73.50

73.58

73.48

June

72.74

72.12

71.71

71.50

71.37

71.27

71.18

71.05

70.93

70.92

70.92

70.88

70.58

69.85

69.08

68.48

68.14

67.81

67.38

66.79

66.11

65.57

65.18

64.90

64.74

64.50

64.11

63.57

63.05

62.53

-

July

62.02

61.52

61.05

60.44

59.66

58.94

58.34

57.75

a57 . 00

a56.40

a55.50

54.88

54.25

53.84

53.62

53.16

52.68

52.28

51.97

51.89

51.80

51.63

51.39

51.14

50.95

50.79

50.50

50.29

50.42

50.74

51.00

Aug.

50.88

f50.51

a50.00

a49.65

a49.40

a49.25

a49.30

a49.30

a49.00

a48.65

348.50

a48.35

48.25

48.21

48.29

48.14

48.02

47.84

47.69

47.49

47.33

47.35

47.25

47.08

46.98

46.94

46.91

46.89

46.82

46.69

46.57

Sept.

46.50

46.52

46.53

46.59

46.62

46.62

46.61

46.59

46.56

46.56

46.55

46.57

46.60

46.61

46.56

46.62

46.68

46.74

46.76

46.74

46.70

46.64

46.64

46.63

46.68

46.62

46.56

46.59

46.62

46.68

-

a Elevation estimated on basis of other ststlons on Kootenai River. 

Note.- Add 1,700 feet to obtain elevation above mean sea level.
208 KOOTENAI RIVER BASIN

Kootenai River near Copeland, Idaho 

(International gaging station)

Location.- Water-stage recorder, lat. 48°54'45", long. 116°25'00", in NV'jNW^SW^ sec. 12, 

T. 64 N., R. 1 W., at Andrews Ranch, three-quarters of a mile downstream from Mission 

Creek' and \\ miles northwest of Copeland. Datum of gage is 1,700.00 feet above mean 

sea level (U. S. Coast and Geodetic Survey datum); gage heights have been reduced to 

elevations above mean sea level.

Drainage area.- 13,400 square miles.

Records available.- October 1927 to September 1948 (gage-height record only prior to May 

1929) in reports of Geological Survey. April 1925 to September 1927 (gage heights 

only) in reports of Dominion Water and Power Bureau, Department of Mines and Resources, 

Canada.

Average discharge.- 19 years, 14,240 second-feet.

Extremes.- Maximum daily discharge during year, 134,000 second-feet May 30; maximum 

elevation, 1,770.10 feet fla;' 31; minimum daily discharge, 3,510 second-feet Feb. 13, 

during period of ice effect; minimum elevation, 1,740.73 feet Mar. 2P.

1929-48: Maximum daily discharge, that of-May 30, 1948; maximum elevation, that 

of May 31, 1948; minimum daily discharge, 1,350 second-feet Feb. o, 1936; minimum 

elevation, 1,738.52 feet Apr. 2, 3, 1914.

Remarks.- Records excellent except those for periods of ice effect and periods affected 

by dike breakages, which are good. Dikes of all drainage districts in Kootenai Valley 

'n United States and two in Canada broke between May 23 and June 7, effecting elevations 

and discharge at high stages. Discharge computed from fall-mean stage-discharge re-" 

lations determined on basis of fall in reach between stations at Klockmann Ranch and at 

Porthill and discharge measurements made at station near Copeland. Stage-discharge 

relation affected by backwater from Kootenay Lake.

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 1947 to September 1948

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.

46.52

46.47

46.55

46.65

46.79

46.89

47.07

47.07

46.97

46.98

46.99

46.96

46.90

46.87

46.87

47.52

48.54

49.60

51.60

54.08

54.93

54.08

52.64

51.39

50.49

49.72

49.16

48.74

48.49

48.39

48.30

Nov.

48.17

48.15

48.07

47.99

47.84

47.67

47.52

47.44

47.35

47.23

47.18

47.11

47.07

47.06

47.02

46.96

46.85

46.81

46.77

46.77

46.74

46.70

46.63

46.62

46.59

46.62

46.64

46.63

46.58

46.51

Dec.

46.49

46.43

46.43

46.46

46.45

46.43

46.37

46.34

46.30

46.26

46.27

46.25

46.26

46.34

46.44

46.43

46.44

46.35

46.37

46.37

46.33

46.28

46.26

46.27

46.29

46.30

46.33

46.34

46.37

46.38

46.32

Jan.

46.26

46.32

46.28

46.30

46.29

46.30

46.35

46.29

46.20

46.07

46.00

45.94

45.84

45.77

45.71

45.69

45.64

45.57

45.57

45.55

45.57

45.59

45.57

45.48

45.36

45.20

45.14

45.08

44.99

44.95

44.89

Feb.

44.86

44.78

44.66

44.56

44.48

44.38

44.27

44.25

44.28

44.24

44.16

44.06

44.03

43.99

44.05

44. O6

44.13

44.24

44.23

44.04

43.95

43.88

43.82

43.69

43.61

43.56

43.60

43.57

43.43

-

Mar.

43.31

43.24

43.07

42.94

42.82

42.73

42.64

42.52

42.35

42.21

42.13

42.11

42.03

41.96

41.84

41.73

41.60

41.44

41.37

41.24

41.10

41.16

41.26

41.15

41.04

40.83

40.75

40.74

40.82

40.97

41.00

Apr.

41.00

41.02

41.12

41.32

41.26

41.24

41.15

41.08

41.03

41.08

41.10

41.07

41.01

40.96

40.98

41.48

43.33

45.69

47.34

48.30

49.10

50.44

51.96

52.45

52.19

51.52

50.65

49.83

49.50

50.40

-

May

51.76

52.26

51.88

51.45

51.16

50.83

51.01

51.70

52.65

53.00

52.73

52.53

52.90

53.68

53.90

53.79

54.14

55.03

56.51

59.02

62.17

64.04

65.64

66.78

67.27

67.05

69.03

69.61

68.89

69.53

69.77

June

68.93

68.59

68.25

68.03

67.92

67.86

67.80

67.72

67.63

67.62

67.64

67.60

67.40

66.97

66.38

65.84

65.43

65.08

64.67

64.15

63.58

63.10

62.71

62.39

62.15

61.87

61.53

61.08

60.52

60.06

-

Jily

59.60

59.18

58.75

58.20

57.59

56.97

56.42

55.84

55.27

54.66

53.98

53.38

52.81

52.37

52.09

a51.65

a51.20

50.81

50.54

50. 4u

50.27

50.10

4F.87

4P.68

4F.62

4P.34

4F.10

48.90

48.94

4F.12

4?. 26

Aug.

49.17

48.88

48.57

48.34

48.16

47.98

47.95

47.95

47.71

47.44

47.23

47.09

46.99

46.91

46.89

46.86

46.78

46.65

46.55

46.39

46.27

46.25

46.19

46.04

45". 95

45.93

45.91

45.89

45.85

45.75

45.69

Sept.

45.67

45.72

45.80

45.90

45.97

46.00

46.02

46.02

46.04

46.06

46. OS

46.13

46.16

46.20

46.15

46.22

46.29

46.36

46.40

46.38

46.34

46.31

46.32

46.29

46.32

46.27

4R.24

46.26

46.33

46.39

-

a Ho gage-height record; elevations computed on basis of records for other Kcotenal River 

stations.

Note.- Add 1,70O feet to gage heights to obtsln elevstlon above mean sea level.
KOOTENAI RIVER BASIN 209

Discharge, in second-feet, of Kootenal River near Copeland, Idaho, 

water year October 1947 to September 1943

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7,840

7,450

7,760

8,120

8,750

9,800

11,200

11,500

11,000

10,700

10,800

11,100

10,900

10,500

10,400

12,900

17,600

23,000

31,000

37,200

40,200

36,200

32,000

27,200

23,600

21,100

19,800

18,800

18,200

17,700

17,500

Nov.

17,000

16,800

16,600

16,200

15,900

15,400

14,600

14,000

13,500

13,200

12,800

12,400

12,000

11,800

11,600

11,400

10,900

10 , 500

9,980

9,720

9,390

9,140

8,670

8,610

8,540

8,620

3,750

8,620

3,420

7,980

-

Dec.

7,720

7,650

7,510

7,470

7,400

7,390

6,880

*6,800

6,600

6,360

6 , 200

6,000

6,630

6,600

6,850

6,950

6,800

7,000

7,400

7,400

7,300

7,100

6,900

6,750

6,700

5,700

6,600

6,480

6,500

6,580

6,500

Jan.

6,150

6,200

6,380

6,090

6,350

6,400

6,700

6,800

*6,650

5,990

5,960

5,900

5,690

5,020

4,240

3,900

4,240

4,360

4,580

4,520

4,860

5,220

5,510

5,590

5,700

5,570

5,120

4,590

4,100

4,060

4,320

Month

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

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

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

Calend&r year i°.'7 .........

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

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

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

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

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

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

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

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

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

Water year 1947-48 ..........

Feb.

4,200

4,270

4, J91

3,880

3,840

3,730

3,690

3,660

3,700

3,900

3,640

3,570

3,510

3,710

4,130

4,830

5,170

6,190

6,900

6,670

6,100

5,860

5,630

5,610

5,600

5,570

5,480

5,600

6,220

_

-

Secondfoot-days

541,620

353,040

213,720

6,770,210

166 , 760 

139,000

16=5,170

562 , 420 

1,854,900

2,272,900

783,000

437,600 

229,250

7,719,380

Mar.

5,860

5,610

5,660

5,500

5,280

5,080

5,000

*5,020

5,120

4,960

4,670

4,660

4,530

4,560

4,660

4,660

4, -870

4,900

4,870

4,850

4,600

5,120

6,020

6,140

5,940

*5,570

5,570

5,730

6,170

6,800

7,190

Maximum

40,200

17,000

7,720

6,800

6,900

7,190

39,900

124,000

117,000

43,700

20,200 

10,100

124,000

Apr.

7,250

7,400

7,960

8,590

8,440

8,370

8,120

7,830

7,760

7,900

8,030

7,980

7,660

7,490

7,490

9,450

17,600

23,400

27,200

21,300

31,000

35,200

39,300

39,900

38,100

35,000

31,400

28,500

27,500

31,300

-

May

36,200

36,900

34,600

32,800

31,600

30,200

31,200

33,800

37,100

37,500

36,100

34,700

35,900

38,900

39,400

38,300

39,300

43,000

49,900

61,600

75,200

83,600

89,600

94,100

90,700

98,400

95,300

107,000

123,000

124,000

115,000

Minimum

7,450

7,980

6,000

3,040

3,900

3,510

4,530

7,250

30,200

46 , 000

17,400

10,600 

6,110

3,510

June

117,000

108 , 000

103,000

99,100

97,500

98,000

95,600

94,500

93,200

92,800

92,500

91,200

87,100

80,200

74,500

70,000

68,000

64,300

63,200

60,500

58,400

56,400

54,200

53,700

53,200

52,500

50,700

49,800

47,800

46, ODD

-

Mean

17,470

11,770

6,894

18,550

5 379 

4 793

5 , 328

18,750

59,840

75,760

25,260

14,120 

7,642

21,030

July

43,700

43,400

40 , 500

39,100

37,000

34,600

32,200

30,900

30,000

27,600

24,700

23,700

22,400

21,900

22,200

21,200

20,400

20,000

19,500

19,900

20,000

19,800

19,400

18,800

18,400

18,300

17,800

17,400

18,200

19,500

20,500

Per

square 

mile

1.30

.878

.514

1 . 38

. iOl 

. 358

1.40

4.47

5.65

1.89

1.05 

.570

1.57

Aug.

20,200

19,

17,

16,

100

300

700

15,900

15,800

16,

16,

15,

500

500

300

14,900

14,800

14,

14,

14,

300

100

500

14,900

14,300

14,

13,

13,

DOO

300

LOO

12,800

12,200

12,

12,

12, (

100

500

300

11,800

11,600

11,

11,:

11,

11, (

500

300

500

300

10,600

Sept.

10,100

9,920

9,520

9,210

9,050

8,860

8,720

8,470

8,540

7,950

7,830

7,580

7,520

7,400

7,280

7,220

7,190

7,120

7,070

6,920

6,780

6,630

6,630

6,740

6,850

6,690

6,530

6,470

6,110

6,350

-

Runoff

Inches

1.50

.98

.59

18 . 78

.46 

. 39

.46

1.56

5.15

6.31

2.17

1.21

.64

21.42

Acre-feet

1,074,000

700,200

423,900

13,430,000

330,800

275,700

327,600

1,116,000

3,679,000

4,508,000

1,553,000

868,000 

454,700

15.310.000
210 KOOTENAI RIVER BASIN

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 

 N., K. 1 W., 300 feet south of international boundary at Porthill. Datom of gage is 

1,700.00 feet above mean sea level (U. S. Coast and Geodetic Survey datiom) 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 lev<sl (U. S. Coast 

and Geodetic Survey datum).

Drainage area.- 13,700 square miles.

Records available.- May to July 1904, October 1927 to April 1928 (gage heights only), and 

April 1928 to September 1948 in reports of Geological Survey. October 1924 to September 

1927 (gage heights only) in reports of Dominion Water and Power Bureau, Department of 

Mines and Resources, Canada.

Average discharge.- 20 years, 14,500 second-feet.

Extremes.- Maximum daily discharge during year, 125,000 second-feet June 1; maximum elevation, 1,766.16 feet May 31; minimum daily discharge, 3,630 second-feet Feb. 13; minimum elevation, 1,740.36 feet Mar. 28.

1928-48; Maximum daily discharge, that of June 1, 1948; maximum elevation, that of 

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 May 24 to July 20 when discharge was affected 

by dike breakages, which are good, and those for period of ice effect at Copeland 

(Dec. 11, 12, Jan. 15 to Mar. 17), which 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 for entire year and for storage change in drainage districts in 

Kootenai Valley between Copeland and Porthill when flooded. Boundary dike of Reclamation Farm and U. S. Forest Service roadway dike (south side of Boundary Creek) broke 

May 31 and flow bypassed main channel May 31 until early in July; after wnich time some 

flow might have returned from reclamation farm to main channel by way of boundary Creek. 

Eight measurements of flow in main channel were made during year as follows: 99,900 

second-feet May 31; 76,500 second-feet June 9; 65,200 second-feet June 17; 53,600 

second-feet June 23; 50,400 second-feet June 28; 37,200 second-feet July 6; 24,500 

second-feet July 14; 19,700 second-feet Aug. 2. Elevations affected by backwater from 

Kootenay Lake. Dikes of all drainage districts in Kootenai Valley in United States and 

two in Canada broke between May 23 and June 7, affecting elevations and discharge at 

high stages.

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

United States under agreement with Canada.

Elevation, in feet, water year October 1947 to September 1948

Das

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

46.17

46.13

46.21

46.30

46.41

46.44

46.54

46.53

46.46

46 . 4-9

46.49

46.45

46.41

46.41

46.39

46.88

47.63

48.34

49.92

51.72

52.31

51.75

50.70

49.80

49.08

48.51

48.02

47.68

47.48

47.40

47.33

Nov.

47.24

47.22

47.17

47.10

46.99

46.86

46.74

46.71

46.67

46.56

46.52

46.50

46.48

46.49

46.46

46.40

46.33

46.33

46.32

46.33

46.32

46.28

46.25

46.23

46.20

46.24

46.27

46.26

46 21

46.18

-

Dec.

46.15

46.11

46.12

46.15

46.14

46.12

46.09

46.06

46.04

46.00

46.01

45.98

45.98

46.06

46.10

46.10

46.12

46.07

46.08

46.04

46.00

45.98

45.95

45.99

46.01

46.03

46.05

46.08

46.11

46.10

46.05

Jan.

46. OO

46.07

46 . 01

46.04

46.03

46.04

46.07

46. O2

45.92

45.78

45.73

45.69

45.60

45.56

45.50

45.45

45.40

45 33

45 32

45.29

45.29

45.29

45.26

45.18

45.08

44.95

44.89

44.84

44.77

44.71

44.64

Feb.

44.61

44.52

44.41

44.33

44.25

44.17

44.07

44.02

44.07

44.00

43.93

43.84

43.80

43.74

43.77

43.77

43.81

43.38

43.80

43.64

43.58

43.52

43.47

43.34

43.27

43.23

43.23

43.18

43.06

_

-

Mar.

42.93

42.89

42.71

42.60

42.49

42.39

42.30

42.17

42.02

41.90

41.82

41.78

41.71

41.67

41.54

41.41

41.29

41.13

41.07

40.94

4O.80

40.84

40.88

40.76

40.64

40.48

40.40

40.37

40.43

40.52

40.50

Apr.

40.50

4O.51

40.59

40.72

40 69

40.70

40.62

40.57

40.53

40.59

40.59

40.57

40.54

40.52

40.52

40.87

42.19

43.97

45.33

46.11

46.83

47.95

49.18

49.64

49.50

49.06

48.44

47.86

47.65

48.34

-

May

49.34

49.77

49.54

49.26

49.08

48.85

48.96

49.44

50.31

50.62

50.52

50.39

50.73

51.33

51.51

51.47

51.81

52.52

53.72

55.82

58.20

59.68

61.00

61.98

62.68

62.74

64.23

64.72

64.32

65.07

65.55

June

65.21

65.42

65.33

65.29

65.26

65.25

65.26

65.22

65.19

a65.20

a65.25

a65.25

a65.15

a64.70

a64.25

a63.85

a63.58

63.21

62.01

62.37

61.84

61.37

60.91

60.56

60.25

59.91

59.57

59.16

58.74

58.30

-

July

57.86

57.46

57.02

56.54

56.01

55.49

54.96

54.45

53.91

53.36

52.81

52.25

51.74

51.33

50.99

50.63

50.21

49.81

49.54

49.35

49.20

49 . 0.3

48.82

48.68

48.5?

48.35

48.11

47.96

47.91

47.93

48 . Oi3

Aug.

47.98

47.78

47.52

47.32

47.20

47.04

46.98

46.98

46.77

46.54

46.38

46.22

46.17

46.08

46.07

46.06

45.98

45.87

45.80

45.64

45.59

45.58

45.49

45'. 34

45.29

45.28

45.26

45.25

45.22

45.15

45.10

Sept.

45.15

45.21

45.32

45.46

45.53

45.57

45.59

45.62

45.57

45.69

45.70

45.77

45.81

45.85

45.81

45.89

45.96

46.04

46.07

46.07

46.05

46.01

46.01

45.98

46.02

45.98

45.94

45.98

46.07

46.10

-

a No gage-height record; elevation computed on basis of other Kootenai River stations and recorded 

range in stage.

Note.- Add 1,700 feet to obtain elevation above mean sea level.
KOOTENAI RIVER BASIN

Ischarge, In second-feet, of Kootenai River at Porthill, Idaho, 

water' year October 1947 to September 1948

211

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

8,000

7,650

8,030

8,330

9,060

10,000

11,400

11,600

11,300

11,300

11,300

11,500

11,300

10,900

11,200

14,600

18,300

23,900

33,300

37,500

41,300

38 , 200

34,200

29,100

25,100

22,400

20,900

19,900

19,200

18,500

18,300

Nov.

18,000

17,800

17,500

17,000

16,700

16,200

15,300

14,600

14,100

13,800

13,300

12,900

12,500

12,200

12,000

11,800

11,400

10,900

10,400

10,100

9,700

9,480

9,010

8,930

8,850

8,980

9,030

8,870

8,640

8,260

-

Dec.

7,960

7,900

7,730

7,660

7,590

7,560

7,110

7,000

6,800

6,550

6,370

6,190

6,810

6', 730

6,970

7,110

6,960

7,230

7,570

7,590

7,500

7,280

7,080

6,890

6,840

6,840

6,730

6,620

6,630

6,700

6,660

Jan.

6,320

6,310

6,560

6,220

6,500

6,530

6,820

6,970

6,850

6,210

6,130

6,040

5,860

5,160

4,380

4,020

4,390

4,520

4,700

4,640

4,970

5,330

5,630

5,750

5,860

5,740

5,240

4,710

4,230

4,180

4,460

Month

October ..... .................

November ......... ............

December ......................

Calendar year 1947 .........

January .......................

February . . ..................

March .......... ... ........

April .............. .....

May . . ............... ...

June . . ......................

July .......... ...... ........

August ............... ........

September ............ ........

Water year 1947 48 ..........

Feb.

4,320

4,430

4,260

4,040

3,980

3,870

3,850

3,770

3,780

4,040

3,780

3,720

3,630

3,860

4,210

5,000

5,270

6,260

7,030

6,880

6,250

6,000

5,760

5,780

5,750

5,700

5,570

5,720

6,400

_

-

Secondfoot-days

567,570

368,250

219,160

6,984,540

171,230

142,910

169,850

569,650

1,820,900

2,408,000

836,800

443,900

231,050

7,949,270

Mar.

6,020

5,740

5,850

5,660

5,440

5,230

5,140

5,190

5,300

5,110

4,800

4,770

4,660

4,670

4,820

4,810

5,030

5,080

4,990

5,010

4,780

5,230

6,100

6,320

6,120

5,800

5,720

5,880

6,370

6,880

7,330

Maximum

41,300

18,000

7,960

91,100

6,970

7,030

7,330

40,400

114,000

125,000

47,400

20,400

10,200

125,000

Apr

7,390

7,540

8,050

8,640

8,600

8,510

8,300

7,990

7,910

7,990

8,160

8,110

7,810

7,640

7,660

9,550

17,100

22,700

26,900

29,500

31,400

35,500

39,400

40,400

39,000

36,000

32,400

29,500

28,400

31,600

-

May

36,200

37,200

35,500

33,700

32,400

31,100

32,000

34,500

37,500

38,200

37,200

36,000

37,300

39,800

40,500

39,800

40,800

44,100

51,000

62,900

76,400

85,800

92,100

92,800

92,400

103,000

90,500

87,200

104,000

105,000

114,000

Minimum

7,650

8,260

6,190

3,120

4,020

3,630

4,660

7,390

31,100

49,700

17,900

10,700

6,160

3,630

June

125,000

112,000

108,000

104,000

102,000

102,000

99,500

98,800

97,300

95,300

95 , 400

94,200

91,000

86,100

80,800

75,700

72,900

69,200

68,200

65,700

63,900

61,600

58,700

57,700

57,800

55,500

53,800

53,600

52,600

49,700

-

Mean

18,310

12,280

7,070

19,140

5,524

4,928

5,479

18,990

58,740

80,270

26,990

14,320

7,702

21,720

July

47,400

47,100

43,600

42,800

40,800

38,000

35,800

34,100

33,400

29,800

29,500

26,900

24,600

23,400

23,200

22,100

21 , 400

20,700

20,100

20,400

20,400

20,200

19,800

19,100

18,700

18,600

18,200

17,900

18,500

19,700

20,600

Per

square 

mile

1.34

.896

.516

1.40

.403

.360

.400

1.39

4.29

5.86

1.97

1.05

.562

1.59

Aug.

20,

19,

18,

17,

16,

16,

16,

16,

15,

15,

15,

14,

14,

14, is,

14,

14,

13,

13,

13,

12,

12,

12,

12,

12,

11,

11,

11,

11,

11,

10,

400

500

000

000

200

100

500

500

900

200

100

800

600

700

000

400

200

800

300

000

400

500

500

200

000

700

600

600

400

100

700

Sept.

10,200

10,000

9,660

9,200

9,070

8,910

8,770

8,520

8,620

7,960

7,880

7,600

7,560

7,430

7,360

7,230

7,210

7,140

7,100

6,990

6,840

6,710

6,740

6,840

6,910

6,800

6,660

6,560

6,160

6,420

-

Runoff

Inch3S

1.54

1.00

.59

18.96

.46

.39

.46

1.55

4.94

6.54

2.27

1.21

.63

21.58

Ac re- feet

1,126,000

730,400

434,700

13,850,000

339,600

283,500

336,900

1,130,000

3,612,000

4,776,000

1,660,000

880,500

458,300

15,770,000
212 KOOTENAI RJ.VER BASIN

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 

 Kuskonook. Datum of ga^e is 1,735.00 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 referred to U. S. Coast and Geodetic Survey datum, which is 

0.20 foot lower than the Canadian datum as determined at Porthill, Idaho.

Records available.- April 1936 to September 1948.

Extremes.- Maximum elevation during year, 1,761.25 feet June 11; minimum, 1,739.68 feet 

Apr. Apr.14. 14.

1936-48: Maximum elevation, that of June 11, 1948; miniirum daily, 1,737.83 feet 

Apr. 5, 6; 1944.

Remarks.- Elevation is subject to partial regulation by Corra Linn Dam telow outlet. 

Practically no diversion or regulation above Kootenay Lake.

Cooperation.- This station is one of the international gaging stations maintained by 

Canala under agreement with the United States.

Elevation, In feet, year October 1947 to September 194F

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

45.70

45.70

45.71

45.79

45.83

45.81

45.76

45.72

45.70

45.70

45.67

45.64

45.62

45.64

45.62

45.71

IE . 80

45.87

46.07

46.38

46.62

46.75

46.76

46.65

46.47

46.26

a46.01

a45.79

a45.69

45.70

45.67

Nov.

45.62

45.62

45.60

45.56

45.52

45.50

45.51

45.56

45.52

45.47

45.54

45. 56

45.60

45.62

45.62

45.58

4F. C 5

45.60

45.64

45.63

45.70

45.71

45.70

45.69

45.69

45.72

45.73

45.74

45.72

45.67

-

Dec.

45.68

45.68

45.70

45.70

45.70

45.68

45.67

45.67

45.66

45.66

45.66

4F.SE

45.67

45.69

45.72

45.72

45.74

45.67

45.62

45.59

45.58

45.58

45.61

45.60

45.64

45.65

45.70

45.72

45.74

45.73

45.71

Jan.

45.70

45.71

45.68

45.70

45.71

45.70

45.70

45.65

45.57

45.45

45.40

45.36

45.31

45.29

45.25

45.20

45.15

45.09

45.04

45.00

44.98

44.97

44.88

44.79

44.72

44.fi7

44. S3

44.58

44.51

44.45

44.37

Feb.

44.32

44.26

44.17

44.10

44.02

43.92

43.85

43.82

43.80

43.74

43.66

41.58

43.52

43.50

43.49

43.45

43.43

43.40

43.24

43.13

43.10

43.06

43.02

42.92

42.85

42.80

42.75

42.65

42.55

-

-

Mar.

42.46

42.37

42.26

42.15

42.06

41.96

41.86

41.75

41.63

41.54

41.45

41.38

41.32

41.25

41.15

41.03

40.90

40.77

40.67

40.55

40.46

40.41

40.32

40.17

40.05

39.95

39.86

39.81

^9.80

39.77

39.76

Apr.

39.76

39.77

39.79

39.78

39.77

39.79

39.77

39.75

39.74

39.75

39.75

39.74

39.73

39.71

39.71

39.77

39.89

40.14

40 . 45

40.79

41.16

41.58

a 42. 08

a42.59

43.05

43.40

43.64

43.78

43.85

43.98

-

Hay

44.16

44.40

44.59

44.75

44.85

44.88

44.93

45.01

45.13

a45.29

a45.47

45.60

45.76

45.96

46.16

46.33

46.56

46.86

47.15

47.65

348.50

49.57

Ell. 68

51.90

53.03

54.05

55.06

56.15

56.92

57.50

58.06

June

58.54

59.03

59.57

60.01

60.38

60.66

60.88

60.97

61.02

61.18

61.22

61.22

61.10

60.90

60.57

60.19

59.81

59.34

58.86

58.42

58.00

57.58

57.12

56.72

56.31

55.90

55.49

55.09

54.72

54.38

July

54.03

53.67

53.25

52.85

52.51

52.20

51.83

51.47

51.08

50.68

50.30

49.91-

49.53

49.18

48.83

4S-.49

48.18

47.87

47.62

47.40

47.26

47.11

47.00

46.91

46.77

46.60

46.42

46.25

46.11

45.97

45.80

Aug.

45.79

45.70

45. CO

45.55

45.54

45.46

45.36

45.28

45.17

45.04

44.92

44.84

44.80

44.70

44.68

44.70

44.67

44.63

44.60

44.53

44.50

44.46

44.41

44.35

44.31

44.30

44.31

44.30

44.28

44.24

44 . 27

Sept.

44.38

44.50

44.66

44.80

44.90

44.96

45.04

45.06

45.14

45.18

45.22

45.30

45.36

45.39

45.38

45.48

45.55

45.60

45.63

45.65

45.67

45.66

4E.66

45.55

45.59

45.59

45.57

45.62

45.67

45.71

a Mean daily elevations computed on basis of records for station at Queens Bay.

Note.- Add 1,700 feet to obtain elevation above mean sea level. Figures of nean ele 

July 1. 13 supersede figures published in Water-supply 1O8O, "Floods of May-Jure 1948 

River Basin."

at ion for 

n Columbia
KOOTENI RIVER BASIN 213

Fortine Creek near Tr^go, Mont.

Location.- Wire-weight gage, lat. 48°39', long. 114°55', in IIE^-NE^ sec. 11, T. 33 N. , R. 

26 W. , at private "bridge a quarter of a mile upstream from Edna Creek, 1 mile downstream from Stewart Creek, and 5j miles southwest of Trego.

Drainage area.- Til square miles.

Records available.- December 1946 to September 1948.

Extremes.- Maximum discharge during year, 1,000 second-feet May 22 (gage height, 10.46 

 reel, from floodmark); minimum daily, 5 second-feet Feb. 11-13; minimum gage height

observed, 0.94 foot Oct. 1.

1946-48: Maximum discharge, that of May 22, 1948; minimum daily, 5 second-feet

Dec. 5, 1946, to Jan. 7, 1947, Jan 13-15, 1947, Feb. 11-13, 1948.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Gage read once daily. No regulation or diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

12

17

15

20

18

17

26

24

23

20

18

18

19

22

25

40

45

84

172

186

181

143

124

106

93

92

91

95

92

79

Nov.

75

70

59

35

27

24

27

29

35

43

47

45

43

40

36

41

46

43

41

39

36

36

37

*39

36

41

36

35

33

31

-

Dec.

31

30

30

30

30

29

a28

a27

a26

a25

a27

a30

a33

37

37

33

30

25

28

28

28

28

30

28

31

28

28

28

34

39

34

Jan

34

33

28

28

28

30

32

34

36

35

32

28

26

24

22

*20

20

20

19

20

22

23

24

23

22

21

20

18

18

17

17

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ......................

March .........................

April .........................

May . . .

June ..........................

July ..........................

August ..... ..................

September . ...................

Hater year 1947-48 .........

Feb.

17

16

15

14

12

11

9

8

7

6

5

5

5

6

!

8

10

12

13

14

15

16

17

17

17

16

16

16

15

_

-

Secondfoot-days

1 935

l',20S

930

36,422.7

744

345

734

8, 632

4 419

l)701

992

319.6

41,347.6

Mar.

15

14

13

13

12

12

11

11

10

10

11

12

13

16

18

*20

23

25

28

30

40

42

45

40

38

35

35

35

35

36

36

Maximum

186

75

39

88*

36

17

45

857

1,000

292

105

52

14

1,000

Apr.

37

37

38

40

42

43

45

47

47

48

48

48

49

72

66

112

198

330

453

540

624

857

844

734

622

522

434

398

500

757

-

May

706

584

499

499

505

479

611

667

832

708

569

514

551

624

521

485

540

674

744

773

a800

al.noo

a900

aSOO

778

682

600

514

424

jsd

330

Minimum

12 >

24

25

5

17

5

10

37

330

80

34

16

9.0

5

June

292

257

224

240

223

184

165

143

127

134

143

169

149

143

134

119

137

150

133 ll*i

116

109

106

105

116

105

116

99

88

80

-

Mean

62.4

40.2

3O.O

99.8

25.0

11.9

23.7

288

6 25

147

54.9

32 0

10.7

113

July

53

67

65

59

59

57

53

59

52

49

47

49

47

43

46

45

42

40

51

103

83

51

47

42

40

34

35

35

105

78

65

Per 

square 

mile

.562

. 362

.270

. 899

.225

.107

.214

2.59

5.63

1.32

495

.288

1.02

Aug.

52

49

46

46

45

42

41

40

37

40

41

38

36

36

32

29

29

27

24

24

24

23

24

27

24

24

21

20

17

18

16

Sept.

14

14

14

13

14

12

11

11

10

10

10

10

9.7

9.7

9.0

9.7

9.7

10

10

11

9.7

9.7

9.0

9.0

9.0

9.7

9.7

10

11

11

-

Runoff

Inches Acre-feet

0.65 3,840

.40 2,390

.31 1,840

12.19 72,240

.26 1,540

.12 684

.25 1,460

2 . 89 17 , 120

6.49 38,400

1.47 8,760

.57 3,370

.33 1,970 

.11 634

13.85 82,010

'Peak discharge (base, 200 see-ft.).- Apr. 22 (5 to 9 p.m.) 896 sec.-ft.; Apr. 30 (l p.m.) 

sec.-ft.; May 9 (9 a.m.) 882 sec.-ft.; May 22 (time unknown) 1,000 sec.-ft. 

» Winter discharge measurement made on this day.

a Ho gage-height record; discharge Interpolated, or computed on basis of weather records. 

Note.- Stage-discharge relation affected by Ice Dec. 2-6, Jan. 10 to Apr. 12.
214 KOOTENAI RIVER BASIN

Lake Creek at Troy, Mont.

Location.- Water-stage recorder, lat. 48°26'40", long. 115°52'30", In SWjj sec. 18, T. 31 

U., K. 33 W., a quarter of a mile downstream from power plant, half a mile upstream 

from mouth, and l£ miles southeast of Troy.

Drainage area.- 211 square miles.

Records available.- January 1945 to September 1948.

Extremes.- Maximum discharge during year, 3,250 second-feet May 30 (gage height, 8.28 

feet); minimum, 2 second-feet Sept. 15 (gates closed during repairs of power dam upstream, leakage only); minimum daily, 140 second-feet Feb. 12, 13, Se-)t. 30.

1945-48: Maximum discharge, that of May 30, 1948; minimum, 2 second-feet Sept. 1, 

1947, Sept. 15, 1948; minimum daily, 83 second-feet Mar. 5, 1945.

Remarks.- Records poor. Some regulation by small dam at power-plant div?rsion. Water 

diverted returns to stream at power plant above station. Natural regalation by Bull 

and Spar Lakes.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

142 

148 

168 

168 

170

170 

162 

175 

175 

180

185 

180 

178 

182 

188

411 

6 IF, 

C54 

1,150 

1,160

952 

/14 

615 

549 

495

45f, 

440 

429 

418 

402 

402

Nov.

396 

396 

390 

385 

375

365 

350 

360 

350 

340

335 

325 

325 

320

310

300 

295 

285

272

258 

249 

244 

?40

236

236 

231 

222 

218

213

Dec.

222 

213 

213 

213 

208

204 

195 

195 

191 

187

183

183 

204 

2C2 

195

187 

213 

244 

310 

280

2E2 

249 

240 

222 

222

218 

208 

218 

204 

200 

195

Jan

200 

258 

244 

236 

222

258 

285

285 

272

262

258

244 

231 

*2.i6 

236

218 

208 

204 

195

200 

195 

195 

191 

183

171 

163 

171 

175 

179 

 171

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

1 . . ......................

ember .....................

ter year 1947-48 . . .......

Feb.

167 

159 

159 

159

151

blSO 

b!55 

167 

171

159

151 

b!40

b!40 

155 

187

171 

267 

320 

258

236 

244 

?40

231 

231

267 

272 

254 

244

Secondfoot-days

12,434 

9,097 

6.7OO

189,560

6,768 

5,841 

7,225 

14,462 

43,134 

63,540 

22,028 

9,006 

4,970

205,205

Peak discharge (base, 1,000 sec. -ft.).- Oo

Mar

240 

240 

231 

222

218

213 

213 

208 

208 

191

195 

195 

195 

195

*191

191

191 

200 

191 

183

191 

365 

295 

280 

267

£67

262 

272 

295 

310 

310

Maximum

1,160 

396 

310

2,280

285 

320 

365 

766 

3,180 

2,910 

1,180 

422 

210

3,180

Apr.

310 

355 

380 

370 

360

350 

340 

335 

335 

335

34p 

335 

325

320 

320

355 

462 

501 

495 

531

585 

657 

153 

766 

760

734 

694 

657 

675 

727

May

708 

682 

657 

675 

651

657 

714 

798 

805 

786

766 

766 

826 

847 

812

819 

898 

947 

1,040 

1,380

1,740 

2,030 

2,060 

2,170 

2,120

2,220 

2,440 

3,000 

3, 180 

3,060 

2,880

Minimum

142 

213 

183

124

163 

140 

183 

310 

651 

1,240 

430 

216 

140

140

June

2,860 

2,900 

2,910 

2,910 

2,800

2,710 

2,720 

2,670 

2,640 

2,700

2,530 

2,380 

2,200 

2,090 

2,020

2,070 

2,180 

1,980 

1,870 

1,790

1,700 

1,630 

1,550 

1,520 

1,490

1,450 

1,400 

1,340 

1,290 

1,240

Mean

401 

303 

216

519

218 

201 

233 

482 

1,391 

2,118 

711 

291 

166

561

July

1,180 

1,140 

1,100 

1,040 

995

945 

925 

886 

838 

790

772 

743 

705 

676

648

620 

592 

f56 

574 

C01

592 

E92 

E65 

£38

493

484 

475 

538 

520 

475 

430

Per 

square 

mile

1.90 

1.44 

1.02

2.46

1.03 

.953 

1.10 

2.28 

6.59 

10.0 

3.37 

1.38 

.787

2.66

Aug.

422 

413 

379 

370 

354

329 

305 

321 

305 

265

313 

273 

281 

281 

265

281 

305 

289 

281 

281

273 

243 

265 

265 

260

254 

243 

232 

226 

216 

216

Sept.

210 

206 

203 

196 

189

189 

192 

182 

182 

175

172 

159 

169 

166 

161

148 

151 

151 

148 

148

145 

145 

154 

154 

148

142 

148 

145 

142 

140

Runoff

Inches Acre-feet

2.19 24,660 

1.61 18,040 

1.18 13,290

33.41 376,000

1.19 13,420 

1.03 11,590 

1.27 14,330 

2.54 28,680 

7.60- 85,560 

11.16 126,000 

3.88 43,690 

1.59 17,860 

.88 9,860

36.12 407,000

t. 19 (9 p.m.) 1,810 sec. -ft.; May 30 (Z a.m.) 3,250 sec.

* Winter discharge measurement made on'this day. 

b Stage-dlschargfi relation affected by Ice.
KOOTENAI RIVER BASIN 215

Boulder Creek near Leonia, Idaho

Location.- Water-stage recorder, lat. 48°36', long. 116°06', in NE£ sec. 32, T. 61 N., 

K. a K. , three-quarters of a mile downstream from McGinty Creek, three-quarters of a 

mile upstream from,buildings or the Idamont Lead-Zinc Mines Co. 2f miles upstream 

from mouth, and 85 miles southwest of Leonia.

Drainage area.- 53 square miles.

Records available.- November 1928 to September 1948. April to September 1928 at site 1 

mile downstream.

Average discharge.- 19 years (1929-48), 106 second-feet.

Extremes.- Maximum discharge during year, 2,700 second-feet Oct. 19 (gage height, 7.85 

1'eetJ , by contracted-opening determination; minimum, 13 second-feet Sept. 22.

1928-48: Maximum discharge, that of Oct. 19, 1947; mininum, 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. No diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

17 

24 

39 

32

62

40 

33 

36 

40 

78

64 

51 

46 

44 

97

545 

481 

553

350 

736

515 

313 

258 

211 

188

169 

172 

185 

178 

185 

185

Nov.

188 

217 

185 

172 

163

151 

142 

148 

137 

126

115 

108 

106 

101 

92

87 

83 

81 

76 

74

68 

68 

67

66 

64

70 

68 

66 

63 

61

Dec.

63 

59 

59 

58 

*57

56 

54 

53 

52 

52

52 

51 

56 

53 

51

50 

51 

58 

63 

58

56 

53 

51 

50 

50

48 

48 

49 

49 

46 

47

Jan.

47 

48 

49 

50 

48

46 

48 

49 

47 

46

46 

40 

36 

35 

38

45 

48 

47 

45 

44

46 

47 

47 

45 

40

35 

32 

31 

32 

*35 

40

Month

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

We

P_ 

knoi

ber . .

lendar year 1347 

ary

st

ember .

ter year 1947-48 ..........

Feb.

47 

45 

42

42

36

34 

36 

39 

43 

41

39 

43 

45 

48 

50

52 

52 

50 

43 

38

40 

4? 

40 

39 

41

43 

41 

*38 

38

Secondfoot-days

6,927 

3,213 

1,653

52,049

1,332 

1,227 

1,232 

6,381 

22,408 

10,243 

1,653 

938 

479

57,686

?ak discharge (base, 490 sec. -ft.).- Oct

 m) 612 sec. -ft.; May 27 (9 p.m.) 1,710

Mar.

38 

37 

36 

36 

35

35 

34 

33 

30 

27

29 

30 

31 

32 

32

32 

*31 

31 

31

31

33 

75 

58 

50 

46

44 

44

50 

63 

60 

58

Maximum

1,350 

217 

63

1,350

50 

52 

75 

540 

1,290 

720 

92 

57 

20

1,350

Apr

57 

59 

61 

59 

57

53 

51 

50 

52 

52

52 

49 

48 

48 

79

276 

404 

361 

377 

408

450 

540 

470 

399 

328

287 

254 

258 

369 

373

May

332 

305 

305 

328 

298

361 

426 

535 

525 

460

460 

535 

718 

584 

535

590 

699 

721 

878 

1,070

983

,030 

,070 

,290 

,150

,110 

,270 

,190 

,000 

880 

770

Minimum

17 

61 

46

12

31 

34 

27 

48 

298 

104 

32 

19 

14

14

June

720 

690 

660 

656 

586

563 

525 

498 

451 

426

390 

341 

291 

358 

288

304 

291 

259 

229 

2O7

193 

178 

166 

172 

169

151 

137 

125 

115 

104

Mean

223 

107 

53.3

143

43.0 

42.3 

39.7 

213 

723 

341 

5S.3 

30.3 

16.0

158

July

92 

83 

74 

71 

70

67 

70 

67 

59 

56

52 

51 

48 

46 

42

40 

38 

37 

50 

66

50 

44 

39 

37 

34

32 

32 

64 

56 

45 

41

Per 

square 

mile

4.21

2.02 

1.01

2.7O

.811 

.798 

.749 

4.02 

13.6 

6.43 

1.01 

.572 

.302

2.98

. 19 (7 a.m.) 2,700 sec. -ft.; Apr. 21 

see. -ft.

Aug.

42 

57 

46 

42 

38

37 

36 

34 

32 

34

48 

43 

38 

35 

29

25 

26 

25 

25 

24

23 

21 

21 

20 

20

20 

21 

13 

19 

19 

19

Sept.

18

]7 

16 

16 

17

17 

16 

16 

16

16

16 

15 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

18 

18 

16

16 

19 

20 

19 

17

Runoff

Inches

4.86 

2.25

1.16

36. 5O

.93 

.86 

.86 

4.48 

IE. 72 

7.19 

1.16 

.66 

.34

40.47

Acre-feet

13,740 

6,370 

3,?80

103,200

2,640 

2,430 

2,440 

12,660 

44,450 

2O.32O 

3,280 

1.8RU 

950

114.400

or 22 (time un-

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice about Jan. 10 to about Feb. 15, Mar. 4, 5, 8-14, 

22. No gage-height record Jan. 3-28, Feb. 5-27, Apr. 21, 22, May 29 to June 3, Aug. 15 to Sept. 2; 

discharge computed on basis of weather records and records for other Kootenai River tributaries.

939922 O- 51 - 15
216 KOOTENAI RIVER BASIN

Moyie River at Eastport, Idaho 

(International gaging station)

Location - Water-stage recorder, lat.49°00', long. 116°11', in SE£ sec. 10, T. 65 N., 

R. 2 E., at Eastport, 1,000.feet downstream from international boundary.

Drainage area.- 570 square miles.

Records available.- August 1929 to September 1948 in reports of Geological Survey.

January to December 1915, March to December 1916, and discharge measurements during 

1914 and 1917, in reports of Dominion Water and Power Bureau, Department of Mines 

and Resources, Canada.

Average discharge.- 19 years, 638 second-feet.

Extremes.- Maximum discharge during year, 8,030 second-feet May 24 (gage height, 10.25 

feet); minimum, 102 second-feet Mar. 10; minimum gage height, 3.63 feet Sept. 22.

1929-48: Maximum discharge, that of May 24, 1948; 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-teight record, 

which are fair. No regulation or diversion above station .

Cooperation.- This station is one of the international gaging stations maintained by the 

united states under agreement with Canada.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

123 

a!23 

a!32 

a!40 

a!60

h!78 

a!70 

a!76 

a!90 

a210

a268 

a259 

h251 

a250 

a290

a700 

920 

1,160 

2,590 

2,720

2,490 

2,140 

1,850 

1,630 

1,440

1,330 

1,260 

1,260 

1,280 

1,240 

1,200

Nov.

1,160 

1,240 

1,200 

1,120 

1,050

965 

912 

878 

836 

789

743 

699 

684 

656 

622

576 

563 

*544 

513 

501

449 

443 

443 

421

411

406 

395 

384 

350 

359

Dec.

359 

330 

340 

335 

316

308 

303 

285 

281

272

268

260 

272 

277 

268

260 

268 

281 

303 

290

285 

281 

272 

268 

268

260 

260 

264 

264 

247 

250

Jan.

256 

260 

260 

256 

247

*260 

251 

251 

243 

2ia

239 

210 

190 

180 

200

210 

230 

230 

225 

220

230 

230 

230 

220 

200

180 

160 

150 

160 

170 

200

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

ary

1 .........................

st ........................

ember .....................

ter year 1947-48 ..........

Feb.

230 

220 

210 

200 

180

170 

180 

20O 

220 

205

20O 

210 

220 

225 

230

240 

240 

230 

 210 

190

200 

210 

2OO 

190 

188

195 

198 

191 

185

Secondfoot-days

28,130 

20,312 

8,795

331,174

6,787 

5,967 

5,942 

44,081 

133,870 

85,440 

17,753 

7,953 

4,016

369,046

Mar.

188 

188 

185 

180 

180

175 

171 

171 

165 

168

*168 

165 

156 

156 

159

156 

159 

162 

159 

156

156 

213 

209 

198 

195

198 

209 

243 

308 

316 

330

Maximum

2,720 

1,240 

359

6,470

260 

240 

330 

3,530 

7,790 

4,630 

1,180 

374 

162

7,790

Apr.

335 

340 

364 

359 

354

34O 

330 

330 

354 

364

379 

359 

350 

359 

544

1,380 

2,060 

2,120 

2,450 

2,660

3,020 

3,530 

3,350 

3,080 

2,740

2,380 

2,120 

2,020 

2,640 

3,070

May

2,590 

2,310 

2,160 

2,210 

2,070

2,140 

2,380 

2,550 

2,650 

2,560

2,510 

2,610 

3,460 

3,240 

2,960

3,140 

3,620 

3,780 

4,290 

5,140

5,960 

6,590 

7,280 

7,680 

7,750

7,790 

7,770 

7,410 

6,600 

5,670 

5,000

Minimum

123 

350 

247

80

150 

170 

156 

330 

2,070 

1,300 

330 

132 

120

120

June

4,630 

4,340

4,260 

4,300 

4,100

3,920 

3,750 

3,550 

3,390 

3,540

3,390 

3,400 

3,080 

3,020 

2,840

2,740 

2,820 

2,690 

2,460 

2,220

2,010 

1,850 

1,820 

1,900 

1,830

1,700 

1,650 

1,540 

1,400 

1,300

Mean

907 

677 

284

907

219 

206 

192 

1,469 

4,318 

2,848 

573- 

257 

134

1,008

July

1.18C 

1.07C 

983 

895 

828

774 

743 

721 

663 

615

582 

615 

563 

513 

489

466 

438 

411 

427 

483

432 

406 

379 

369 

350

330 

330 

443 

460 

416 

379

Per 

square 

mile

1.59 

1.19 

.498

1.59

.384 

.361 

.337 

2.58 

7.58 

5.00 

1.01 

.451 

.235

1.77

Aug.

374 

374 

359 

340 

330

316 

312 

298 

290 

294

298 

294 

285

281 

272

260 

247 

239 

224 

216

213 

205 

202 

195 

191

191 

178 

174 

171 

168 

162

Sept.

162 

159 

152 

149 

146

146 

146 

143 

140

137

137 

132 

129 

126 

126

126 

126 

126 

123 

120

120 

120 

134 

129 

123

129 

132 

129 

126 

123

Runoff

Inches

1.84 

1.33 

.57

PI. 61

.44 

.39 

.39 

2.88 

8.73 

5.57 

1.16 

.52 

.26

i 24.08

Acre-feet

55,800 

40,290 

17,440

656,900

13,460 

11,840 

11,790 

87,430 

265,500 

169,500 

35,210 

15,770 

7,970

732,000

Peak discharge (base, 2,870 sec. -ft.).- Oct. 19 (12:3O p.m.) 3,130 sec. -ft.; Apr. 22 (10 p.m.)

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and record's for station at 

Eileen.

h Computed from staff-gage reading.

Note.- Stage-discharge relation affected by Ice Dec. 30, 31, Jan. 12-23, Jan. 25 1>-> Feb. 24, 

Feb. 29, Mar. 3-6, 9.
KOOTENAI RIVER BASIN 217

Moyie River at Eileen, Idaho

Location.- Water-stage recorder, lat. 48°46', long. 116°10' , in NE£ sec. 35, T. 63 N., R. 

a K., an eighth of a mile downstream from Skin Creek, a quarter of a mile southeast of 

Eileen, and 4 miles upstream from mouth.

Drainage area.- 755 square miles.

Records available.- October 1925 to September 1948.

Average dlscharge.- 23 years, 796 second-feet.

Extremes.- Maximum discharge during year, 9,650 second-feet May 26 (gage height, 6.51 feet); 

minimum, 157 second-feet Sept. 25; minimum gage height, 1.54 feet Oct. 2.

1925-48: Maximum discharge, that of May 26, 1948; minimum, 40 second-feet Nov. 27, 

1936; minimum gage height, 0.50 foot, present datum, Feb. 22, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnicn are fair. No diversion or regulation above station.

Rating tables, water year J947-48, except periods of Ice effect

[gage height, In feet, and discharge, In second-feet)

(Shifting-control method used May 24-29)

1.6 194

1.8 248

2.0 318

2.3 457

Oct. 1 to May 29

2.6 649

3.0 1,000

3.5 1,590

4.0 2,310

4.5 3,280

5.0 4,620

5.6 6,720

6.2 9,400

2.2 160

2.4 242

2.6 345

2.9 540

May 30 to Sept. 30

3.2 780

3.6 1,180

4.0 1,680

4.5 2,420

5.0 3,390

5.5 4,700

6.1 6,750

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

188

188

202

204

222

239

228

236

251

300

359

347

338

334

373

864

1,230

1,470

2,720

3,280

3,020

2,570

2,250

1,970

1,760

1,620

1,510

1,490

1,510

1,460

1,420

Nov.

1,400

1,460

1,410

1,340

1,240

1,160

1,110

1,080

1,030

980

920

882

864

828

785

751

718

703

664

642

586

566

566

553

541

541

534

509

469

469

-

Dec.

480

441

452

436

421

410

400

380

375

365

355

350

360

370

360

350

360

400

450

420

410

400

*391

387

387

377

373

391

387

355

347

Jan.

368

382

377

368

359

377

373

364

351

347

343

296

260

250

270

290

310

307

300

290

300

300

300

290

260

230

210

200

210

220

281

Month

October . .....................

November ......................

December ...................

Calendar year 1947 .........

January ..... .................

February ......................

March ..... . . . ............ .

April ..... ...................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1947-48 ..........

Feb.

281

255

251

250

230

220

240

270

290

270

270

280

290

210

320

330

340

320

300

270

280

290

280

270

260

270

280

280

281

-

-

Secondroot-days

34,153

25,301

18,140

403,656

9,383

8,078

9,321

56,251

161,350

. 100,290

23,093

10,870

5,410

455,640

Mar.

292

281

268

255

261

261

271

261

*239

239

245

255

255

242

245

248

251

255

251

245

255

347

351

334

322

334

351

391

492

503

521

Maximum

3,280

1,460

480

6,980

382

340

521

4,320

9,490

5,660

1,420

519

224

9,490

Apr.

534

560

614

614

600

573

560

553

579

607

628

593

566

560

680

1,670

2,570

2,680

2,960

3,170

3,540

4,320

4,180

3,900

3,450

2,980

2,640

2,520

3,130

3,720

-

May

3,190

2,830

2,640

2,760

2,570

2,610

2,980

3,210

3,380

3,240

3,170

3,260

4,210

4,040

3,600

3,800

4,340

4,470

5,020

B.910

7,150

7,690

8,490

9,000

9,250

9,490

9,200

8,900

7,930

6,850

6,170

Minimum

188

469

347

120

200

220

239

534

2,570

1,550

457

233

160

160

June

5,660

5,290

5,160

5,180

4,980

4,690

4,430

4,160

3,920

4,090

3,870

3,960

3,550

3,440

3,220

3,080

3,190

3,010

2,760

2,530

2,320

2,180

2,120

2 , 240

2,200

2,040

1,960

1,830

1,680

1,550

-

Mean

1,102

843

392

1,106

303

279

301

1,875

5,205

3,343

745

351

180

1,245

July

1,420

1,300

1,200

1,090

1,050

990

950

930

852

807

76E

807

744

674

64Z

618

58£

554

554

64?

58S

547

526

512

477

457

457

610

642

575

526

Per 

square 

mile

1.46

1.12

.519

1.46

.401

.370

. 399

2!48

6.89

4 '987 43

.465

.238

1.65

Aug.

512

519

491

470

457

438

424

405

393

393

393

393

381

369

363

345

334

323

307

296

291

286

281

271

266

262

252

247

242

233

233

Sept.

224

220

211

207

202

198

198

194

190

187

202

187

179

171

168

1G8

164

164

162

160

160

160

175

168

160

164

175

168

164

160

Runoff

Irches

1.68

1.25

.60

19.89

.46

.40

.46

2.77

7.95

4.94

1.14

'.21 54

22.46

Ac re- feet

67,740

50,180

24,080

800,600

18,610

16, 020

18,490

111,600

320,000

198 , 900 

45,800

21 , 560

10,730

903,700

Peak discharge (base, 1,840 see.-ft.).- Oct. 19 (5 p.m.) 3,470 sec.-ft.; Apr. 23 (1:30 a.m.) 

4,500sec.-ft.; Apr. 3n (3 a.m.) 3,9r ' aec.-ft.; May 26 (4 a.m.) 9,650 sec.-ft.

* winter discharge measurement made on this day.

Note.- No gage-height record Dec. 8-22, Sept. 19-23; discharge computed on basis of weather records and records for station at Eastport. Stage-discharge relation affected by Ice Jan. 13-17., 19- 

30, Feb. 4-28.
218 KOOTENAI RIVER BASIN

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.

Drainage area.- 133 square miles.

Records available.- May 1928 to September 1948 (no winter records prior to 1933).

Average discharge.- 16 years (1932-48), 1934 second-feet.

Extremes.- Maximum discharge observed during year, 1,110 second-feet May 24 (gage height, 

4.1H feet); minimum observed, 21 second-feet Oct. 1 (gage height, 0.52 foot).

1928-48: Maximum discharge observed, 1,300 second-feet Dec. 22, 1933; maximum 

gage height observed, 4.46 feet May 6, 1945; minimum discharge observed, 5 second-feet 

Aug. 14, 22, 1940; minimum gage height observed, 0.00 foot Aug. 32, 1940.

Remarks.- Records fair except those for periods of ice effect, which are poor. Staff 

gage read once daily, Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 19*

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

21

26

27

33

37

39

32

33

37

72

81

55

43

85

277

274

236

352

480

497

433

312

241

217

179

170

1S6

166

170

174

174

Nov.

166

166

174

166

149

141

137

149

149

149

145

149

145

145

149

145

137

137

118

137

129

122

118

110

110

107

107

103

93

90

-

Dec.

90

93

93

96

96

93

90

86

83

83

83

80

80

110

118

133

170

222

192

137

114

110

107

100

96

93

93

100

96

93

93

Jan.

90

122

125

125

110

*101

12S

137

125

125

118

90

80

75

80

90

1UU

100

95

90

83

83

77

75

70

65

62

60

62

70

80

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ......................

March ............. ...........

April .........................

Mnv way ...........................

June ...... ..................

July . .... . .................

August .... ...................

September . .................

Water year 1947-48. .........

Feb.

100

96

83

80

70

*65

70

75

85

82

80

85

90

100

120

130

150

200

150

90

100

93

86

96

110

127

118

107

96

_

-

Secondfoot-days

5,119

4,042

3,323

60,854

2,894

2,934

3,734

13,555

24,010

11 ,612

1 ,362 

761

76,598

Mar.

d95

d 93

090

d85

090

dlOO

0120

0130

0120

 0110

101

91

85

74

73

73

73

79

76

73

116

204

181

155

147

139

145

202

210

204

200

Maximum

497

174

222

779

137

200

210

914

1,110

649

164

79

30

1,110

Apr.

212

233

313

280

260

230

212

197

207

212

214

210

190

255

289

466

550

810

788

784

779

914

864

806

689

554

470

490

504

568

-

May

437

424

477

539

518

511

598

797

860

797

K69

598

941

887

806

685

770

685

752

1,000

1,000

1,040

1,080

1,110

1,060

1,000

936

950

856

677

550

Minimum

21

80

13

60

65

73

190

424

70

29

22

21

June

539

500

554

649

554

490

487

473

514

554

477

417

417

373

342

355

417

348

318

277

238

289

289

300

283

274

257

246

200

181

Mean

165

135

107

167

93.4

101

120

452

7 75

^87

IDE

43.9

25.4

209

July

164 155'

151

13P

131

13?

14T

131

120

112

10?

10?

101

8E

80

7S

73

7.C

76

86

91

85

82

76

73

76

82

135

12C

91

79

Per 

square 

mile

1.24

1.02

.805

1 . 26

.702

. 759

.902

3.40

5.33

2.91

.733 

.330

.191

1.57

Aug.

73

79

73

51

51

49

47

45

45

45

53

58

53

51

47

39

40

39

39

37

35

33

33

32

32

32

33

30

30

29

29

Sept.

28

26

25

25

25

25

25

24

24

22

22

22

24

24

24

23

24

24

26

27

24

24

26

27

26

29

30

30

29

27

Runoff

Inches Acre-feet

1.43 10,150

1.13 8,020

.93 6,590

17.03 120,700

.81 5,740

.82 5 ,820

1.04 7,410

3.79 26,890

6.71 47,620

3 . 2c ?3 030

.91 eUbU

^21 1^510

21.41 151,900

* Winter discharge measurement maOe on this Oay. 

d Doubtful or nonrepresentatlve gage reading; discharge 

records for nearby streams.

Note.- Stage-discharge relation affected by ice Jan. 12

computed on basis of weather records and 

19, Jan. 24 to Feb. 1, Fe^i. 4-19.
KOOTENAI RIVER BASIN 219

Long Canyon Creek near Porthill, Idaho

Location.- Water-stage recorder, lat. 48°57', long. 116°32', in IW^- sec. 36, T. 65 N. , R.

2 W. , at U. S. Forest Service bridge at mouth of canyon, 4 miles southwest of Porthill.

Temporary staff gage 250 feet downstream at different datum used after Aug. 23, 1948.

Drainage area.- 29 square miles.

Records available.- May 1928 to September 1948 (no winter records prior to 1935).

Average discharge.- 14 years (1834-48), 56.9 second-feet.

Extremes.- Maximum discharge during year 1,300 second-feet May 27 (gage height, 6.75 

feet), by slope-area method; minimum observed, 5 second-feet Sept. 13-17, 20-22.

1928-48: Maximum discharge, that of May 27, 1948; maximum gage height, 3.55 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, Dsc. 13, 1940.

Remarks. - Records- fair except those for periods of no gage-height record or indefinite 

stage-discharge relation, which are poor. No diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

23

32

49

45

70

53

46

47

50

67

61

54

53

50

82

174

158

160

414

305

265

238

214

188

166

154

144

144

134

126

122

Nov.

132

132

122

118

111

107

102

100

95

90

84

80

79

74

68

67

63

60

55

55

50

49

48

47

46

46

43

41

36

44

-

Dec.

40

37

37

35

33

31

31

30

29

28

28

30

29

28

26

25

27

28

28

27

26

25

24

23

22

21

21

21

20

15

16

Jan.

18

22

20

19

18

18

18

18

17

17

17

12

16

17

16

16

15

15

15

15

15

15

14

14

13

12

13

13

13

13

13

Month

October .......................

November ........ .............

December ......................

Calendar year 1947 .........

January .......................

February ......................

March ............... .........

April .........................

May ......................... .

June .................... .....

July ..........................

August .................. .....

September . ................

Water year 1947-48 ..........

Feb.

14

14

14

14

13

13

13

13

13

13

13

13

13

14

14

14

14

16

14

13

12

12

12

12

12

12

12

11

11

_

-

Secondfoot-days

3,890

2,244

841

32,404

487

378

339

1,366

8,234

13,185

2,241

626

234

34,065

Mar.

11

10

10

10

10

10

10

10

9

9

9

9

9

9

9

9

9

9

10

9

9

15

13

12

12

12

12

13

16

18

17

Maximum

414

132

40

523

22

16

18

100

800

640

130

35

20

800

Apr.

17

17

18

17

16

15

14

14

14

15

15

14

14

14

22

56

71

63

63

68

80

100

97

90

84

74

66

63

71

84

-

May

79

74

74

77

73

79

93

113

120

115

115

120

170

158

150

158

179

186

203

254

307

320

369

366

403

429

800

780

700

600

570

Minimum

23

36

15

11

12

11

9

14

73

150

30

9

5

5

June

590

620

630

640

610

610

610

610

580

560

560

540

510

475

460

550

490

400

360

330

300

270

250

350

300

260

210

185

175

150

-

Mean

125

74.8

27.1

88.8

15.7

13.0

10.9

45.5

266

440

72.3

20.2

7.80

93.1

July

130

120

110

100

110

110

110

110

95

84

78

76

76

68

64

64

58

60

64

57

52

48

h46

46

44

42

44

65

45

35

30

Per

square 

mile

4.31

2.58

.934

3.06

.541

.448

.376

1.57

9.17

15.2

2.49

.697

.269

3.21

Aug.

29

28

28

27

35

29

27

26

29

28

26

25

24

22

19

18

16

15

14

14

14

14

15

18

18

15

12

11

11

10

9

Sept

8

8

7

7

7

7

7

7

6

6

6

6

5

5

5

5

5

6

6

5

5

5

20

10

10

11

15

12

11

11

-

Runcff

Inches

4.99

2.88

1.08

41.56

.62

.48

.43

1.75

10.56

16.91

2.87

.80

.30

43.67

Acre-feet

7,720

4,450

1,670

64,260

966

750

672

2,710

16,330

26,150

4,440

1,240

464

67,560

h Computed from staff-gage reading.

Note.- No gage-height record Dec. 4 to Jan. 6, Feb. 1-16, 20-23, June 25 to July 22, July 24 to 

Aug. 29, Sept. 5, 6, 12, 19, 26, 29, 30; discharge computed on basis of weather records, recorded 

range in stage and records for other Kootenai River tributaries. Stage-discharge relation indefinite 

May 27 to June 24; discharge computed on basis of gage-height record, weather records, and records 

for other nearby streams.
220 KOOTENAI RIVER BASIN

Smith Creek near Forthill, Idaho

Location.- Water-stage recorder, lat. 48°57'40", long, 116°33'20", in NE£ sec. 26, T.

 tjfa N. , R. 2 W., at U. S. Forest Service bridge, 1 mile south of Smith C^eek ranger 

station and 4 miles southwest of Forthill.

Drainage area.- 70 square miles.

Records available.- May 1928 to September 1948 (no winter records 1928-30, 1932-34).

Average discharge.- 16 years (1930-32, 1934-48), 168 second-feet.

Extremes.- Maximum discharge during year, 2,480 second-feet May 27 (gage h3ight, 7.37

 feet) , from rating curve extended above 1,500 second-feet; minimum, 16 second-feet 

probably Sept. 21 (gage height, 1.30 feet, from recorded range in stage).

1928-48: Maximum discharge, 3,150 second-feet May 17, 1941, from rating curve extended above 1,600 second-feet; maximum gage height, that of Msy 27, 1948; minimum 

discharge, 4 second-feet Dec. 4-10, 1936; minimum gage height, 0.78 foot Sept. 4, 1931.

Remarks . - Records good e?;cept those for periods of no gage-height record, which are poor. 

Wo diversion above station.

Discharge, in second feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

81 

168 

139 

193

136 

116 

131 

143 

244

208 

172 

159 

144

280

894 

514 

585 

1,400

850

700 

550

h480 

426 

380

330 

320 

350 

320 

h3l2 

325

Nov.

380 

400 

35O 

320 

280

?60 

250 

240 

230 

210

200 

190 

180 

175 

160

150 

160 

150 

145 

140

12E 

130 

125 

120 

115

115 

105 

80 

59 

78

Dec.

76 

74 

76 

71 

67

54

67 

64 

64 

55

60 

60 

63 

60 

55

52

56

62 

60 

60

60 

58 

56 

54 

54

52 

54 

55 

50 

40 

45

Jan.

50 

54 

52

52 

50

50 

50 

48 

47

46

46 

40

36 

32 

34

36 

40 

39 

39

38

39

39 

39 

38 

32

30

28 

26

30 

32

Feb.

38 

37 

36 

35 

33

30 

31 

32 

36 

34

33 

34 

36 

39 

40

44 

45 

42 

36 

32

34 

36 

33 

34 

34

35 

34 

33 

32

Mnn+h SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

mber . .

lendar year 1947 .....

11,092 

5 , 622

1,834

84,759

h

1 .....

ember ............ ... 

ter year 1347-49 . .

1,238 

1,028 

1,117 

4,674 

J 6,071 

?7,990 

4,040 

1,467 

742

86,915

Peak discharge (base, 830 sec. -ft.).- Oct

sec. -ft.; May 27 (9 p.m.) 2.48O sec. -ft.; Ju

Mar.

32 

32 

31 

30 

33

32 

31 

30 

30 

25

27 

29 

29

28 

28

28 

29 

29 

28 

28

32 

60 

46 

41 

39

41 

45

60 

59

Maximum

1,400 

400

1 ,490

54 

45

so

416 

1,930 

1,540 

254 

75 

45

1,930

Apr

51 

51 

54 

50 

46

43 

42 

43 

46 

46

46 

42 

42 

43

70

143

183 

202 

239 

275

323 

416 

383 

329 

273

232 

205 

196 

257

303

May

260 

239 

239 

247 

227

260 

326 

386 

413 

376

370 

406 

640 

522 

465

541

669 

681 

864

1,310

1,420 

,440 

,410 

,290 

,400

,640 

,930 

,880 

,590 

,320 

,310

June

1,420 

1,450 

1,470 

1,530 

1,480

1,470 

1,540 

1,540 

1,400 

1,300

1,270 

fl,160 

f955 

f845 

f781

988 

860 

700 

630 

562

519 

518 

480 

719 

522

473 

420

370 

326 

292

Minimum Mean

42 358 

59 187 

40 59.2

18 232

26 39.9 

30 35.4 

25 36.0 

42 156

22" 841 

292 933 

65 130 

28 47.3 

16 24.7

16 237

July

254 

220 

198 

175 

207

196 

192 

188 

155 

139

130 

124 

131 

111 

106

104 

92 

108 

111 

107

94 

84

77 

79 

71

65 

82 

156 

112 

92 

80

Per 

square 

mile

5.11 

2.67 

.046

3.31

.570 

.506 

.514 

2.23 

12.0 

13.3 

1.86 

.676 

,353

3.39

Aug.

75

72 

70

66 

66

62 

60 

57 

55 

52

50 

52 

52 

46 

43

41 

38 

36 

34 

35

35 

34 

36 

46 

50

44

36 

34 

32 

30 

28

Sept

26 

25 

24 

23 

23

22 

21 

21 

20 

20

19

18 

18 

18 

17

18 

20 

21 

18 

17

16 

20 

40 

35 

30

30 

45 

42 

40 

35

Runoff

Imhes Acre feet

5.89 22,000 

2.99 11,150 

.97 3,640

45.03 168,100

.66 2,460 

.55 2,040 

.59 2,220 

2.48 9,270 

13.85 51,710 

14.87 55,520 

2.15 8,010 

.78 2,910 

.39 1,470

46.17 172,400

. 16 (10 a.m.) 1.100 sec. -ft.; Oct. 19 (2 a.m.) 2,040 

ne 16 (4:30 p.m.) 1,230 sec. -ft.; June 24 (5:30 a.m.) 911 sec.-ft.

f Computed from partly estimated gage-height record.

h Computed from staff-gage reading.

Note_._- No gage-height record Oct. 19^2?, 24-29, OcU 31 to Nov. 27, Dec. 8 to Jan. 6, Jan. 12 to 

Feb. 23, Mar. 10, H, Sept. 20-30; discharge computed on basis of recorded ranfee in stage, weather 

records, and records for Boundary Creek and other Kootenai River tributaries.
KOOTENAI RIVER BASIN 221

Boundary Creek near Porthill, Idaho 

(International gaging station)

Location.- Water-stage recorder, lat. 48°59'50", long. 116°34'05", in SW£ se?. 11, T. 65 

N!, K. 2 W., 140 feet downstream from bridge at 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 1948.

Average discharge.- 18 years (1930-48), 174 second-feet.

Extremes.- Maximum discharge during year, 2,530 second-feet May 28 (gage height, 5.34 

feet), from rating curve extended above 1,500 second-feet; minimum, 27 second-feet 

Sept. 21, 22 (gage height, 0.73 foot).

1928-48: Maximum discharge, that of May 28, 1948; 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.

Discharge, in second-feet, water year October 1947 to September 1948

Day

i

Z

3

4

5

6

7

fc8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

38

56

85

78

103

75

66

64

a70

a260

a220

al75

a!65

alSO

a360

a900

a520

a600

al,5oO

a8 00

a660

f5o8

436

384

339

312

298

328

312

291

302

Nov.

339

376

324

287

257

247

232

223

206

198

185

176

176

166

153

137

147

143

134

128

106

114

119

118

114

111

99

99

83

104

-

Dec.

101

92

*90

86

78

60

85

79

79

70

75

75

77

74

69

65

71

74

73

72

72

69

68

67

66

64

65

66

64

50

55

Jan.

60

65

62

62

60

60

*60

58

57

56

56

50

45

40

42

45

50

49

48

47

49

49

49

47

43

38

35

33

34

38

40

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

Jnly ..........................

August ........................

September .....................

Water year 1947-48. .........

Feb.

48

47

45

43

40

37

38

40

45

44

41

43

45

48

50

55

55

50

45

40

42

44

43

*39

39

40

40

39

38

_

-

Secondfoot-days

10,455

5,301

2,251

83,862

1,527

1,263

1,235

5,478

29,086

26,521

4,375

2,031

1,036

90,559

Mar.

38

38

38

36

37

37

37

36

35

30

31

*35

35

35

34

34

34

35

35

35

36

50

46

45

43

43

43

49

59

58

58

Maximum

1,500

376

101

1,560

65

55

59

480

2,040

1,450

250

106

49

2,040

Apr.

57

58

60

58

57

55

52

50

53

54

54

49

54

53

66

130

183

220

28O

309

388

480

449

392

332

287

257

250

320

371

-

May

328

298

294

312

a280

a340

a400

a450

a490

a440

431

498

730

630

762

625

805

815

963

1,380

1,550

1,600

1,670

1,540

1,550

1,820

2,040

1,970

1,610

1,360

1,310

Minimum

38

83

50

23

33

37

30

49

280

284

77

40

27

27

June

1,450

1,420

,410

,440

,400

,350

,380

,360

,280

,230

1,220

1,170

918

827

762

838

789

669

594

546

508

480

458

635

530

480

414

359

320

284

-

Mean

337

177

72.6

230

49.3

43.1

39.8

183

938

884

141

65.5

34.5

247

July

250

226

206

isa

2O6

201

198

206

173

158

149

145

145

130

123

123

111

114

121

109

103

96

89

90

82

77

90

160

121

98

87

Per 

square 

mile

3.47

1.82

.748

2.37

.508

.449

.410

1.89

9.67

9.11

1.45

.675

.356

2.55

Aug.

83

83

83

80

106

87

82

79

87

82

80

75

73

66

64

60

58

55

52

52

52

52

54

56

57

53

47

46

44

43

40

Sept.

39

38

36

35

34

34

33

32

32

31

31

29

29

28

28

29

32

34

30

29

27

29

48

39

34

34

49

47

45

41

-

Runoff

Inches

4.01

2.03

.86

32.14

.59

.48

.47

2.10

11.15

10.17

1.68

.78

.40

34.72

Acre-feet

20,740

10,510

4,460

166,300

3,030

2,510

2,450

10,870

57,690

52,600

8,680

4,030

2,050

179,600

Peak discharge (base, 750 aee.-ft.).- Probably Oct. 19, 1,790 sec.-ft.; May 28 (12:30 a.m.) 2,530 

sec.-ft.; June 11 (11 p.m.J 1,570 sec.-ft.; June 24 (6:30 a.m.) 839 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records, recorded range in stage, 

and records for Smith Creek near Porthill and other Kootenai River tributaries..

f Computed from pautly-estimated gage-height record.

Note.- Stage-discharge relation affected by ice Dec. 10-12, Dec* 31 to Jan. 2, Jan. 12-23, Jan. 25 

to Feb. 16, Mar. 1O, 11.
222 PEND OREILLE RIVER BASIN

Clark Fork above Missoula, Mont.

Location.- Water-stage recorder, lat. 46°53', long. 113°56', in NW^ sec. 19, T. 13 N., R. 

1H W. , 3 miles downstream from Blaokfoot River and 3 miles sast of Missoula.

Drainage area.- 5,740 square miles.

Records available.- March 1929 to September 1948.

Average discharge.- 19 years, 2-,515 second-feet.

Extremes.- Maximum discharge during year, 31,500 second-feat May 23 (gage height, 13 07 

feet); minimum, 500 second-feet Sept. 21 (gage height, 1.73 feet); minimum daily, 

1,100 second-feet Mar. 11.

1929-48: Maximum discharge, that of May 23, 1948; minimum, 86 second-feet Jan. 8, 

1930 (gage height, 0.52 foot, ice ,}am 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 are fair. Flow 

regulated "by power- olant at Bonner. Several diversions above station for irrigation.

Revisions (water years).- W 1042: 1936.

Rating tables, water year 1947-48, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to May 23 May 24 to Sept. 30

2.2 1,080 6.0 7,880 2.5 1,200 7.0 10,500 

2.6 1,540 7.0 10,500 3.2 2,100 9.0 16,800 

3.2 2,320 9.0 16,800 4.0 3,400 11.0 23,800 

4.0 3,610 11.0 23,800 5.0 5,470 12.1 27,900 

5.0 5,570 12.4 29,000 6.0 7,840

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,860 

1,990 

2,010 

1,870 

1,910

1,830 

1,870 

2,010 

2,240 

2,180

2,170 

2,120 

2,040 

2,030 

2,000

1,950 

1,950 

1,980 

2,000 

2,040

1,990 

2,080 

2,220 

2,100 

2,620

1,520 

1,920 

1,960 

2,010 

2,010 

1,920

Nov.

1,910 

1,910 

1,910 

2,030 

1,950

1,940 

1,940 

2,040 

2,360 

2,010

2,120 

2,120 

2,110 

2,030 

1,990

1,930 

1,880 

1,840 

1,860 

1,960

1,840 

1,990 

1,160 

1,780 

1,880

2,050 

2,420 

2,320 

2,120 

2,070

Dec.

2,150 

2,070 

2,080 

1,910 

1,790

1,830 

1,830 

1,810 

1,770 

1,810

1,730 

1,760 

1,710 

1,830 

1,810

1,670 

1,660 

1,830 

 1,730 

1,770

1,720 

1,590 

1,650

1,600 

1,680

1,620 

1,590 

1,670 

1,720 

1,620 

1,500

Jan.

1,560 

1,530 

1,740 

1,650 

1,650

1,560 

2,480 

4,160 

3,460 

2,480

2,210 

1,950 

1,820 

bl,750 

bl,700

bl,800 

bl,750 

bl,900 

bl,S50 

bl,800

2,100 

2,030 

1,810 

2,030 

2,070

1,880 

1,670 

1,620 

1,720 

1,770 

1,870

Feb.

1,880 

1,700 

1,530 

1,470 

gl,480

gl,360 

gl,150 

1,360 

1,580 

1,760

1,410 

1,340 

1,380 

1,740 

1,810

1,980

1,520 

1,760 

2,400 

1,960

1,780 

1,810 

1,880 

1,840 

1,790

2,050 

3,020 

2,410 

2,170

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

May.

June 

July 

Augu 

Sept

Wa

ber .....................................

lendar year 1947

ter year 1947-48 .......................

Mar.

1,940 

1,820 

*1,770 

1,520

1,480

1,500 

1,640 

1,670 

1,550 

1,240

1,100 

1,310 

1,550 

1,720 

1,700

1,600 

1,640 

1,610 

1,640 

1,580

1,490 

1,500 

1,870 

1,900 

1,860

2,010 

1,780 

2,030 

3,170 

3,700 

3,240

Apr.

2, 

2, 

3, 

3, 

3,

2,

2, '2, 

2, 

2,

2, 

2, 

2, 

2, 

2,

4, 

6, 

7, 

6, 

6,

6, 

7, 

8, 

8, 

7,

7, 

6, 

6, 

6, 

7,

Secondfoot-days

62,400 

59,520 

54,510

1,399,723

61,370 

51,320 

56,130 

148,290 

495,290 

462,740 

149,510 

78,010 

47,680

1,726,770

500 

650 

440 

900 

500

910 

730 

350 

410 

730

990 

730 

380 

440 

880

600 

460 

280 

770 

770

980 

830 

560 

430 

930

400 

770 

310 

310 

350

May

8,130 

7,960 

7,500 

7,280 

7,260

6,930 

7,330 

10,200 

11,700 

11,300

10,700 

10,200 

10,100 

10,400 

10,600

10,600 

10,800 

13,000 

16,200 

20,900

26,200 

28,200 

28,800 

27,600 

25,400

25,000 

25,300 

25,300 

25,900 

25,100 

23,400

Maximum

2,620 

2,420 

2,150

22,000

4,160 

3,020 

3,700 

8,560 

28,800 

25,300 

8,350 

3,650 

1,780

28,800

June

22,100 

21,100 

21,100 

23,800 

25,300

24,600 

23,200 

21,400 

19,800 

18,500

17,600 

17,100 

16,100 

15,000 

13,500

12,300 

12,300 

12,000 

11,100 

10,500

10,000 

10,600 

11,200 

11,600 

11,600

11,300 

10,600 

9,880 

9,110 

8,450

July Aug.

7,960 

8,040 

8,350 

7,150 

6,670

5,970 

5,830 

5,510 

5,180 

5,120

4,260 

4,770 

4,680 

4,370 

4,200

4,040 

4,350 

3,280 

4,310 

4,660

4,540 

4,220 

3,880 

3,760 

3,670

3,480 

3,310 

3,330 

3,530 

3,650 

3,440

3,440 

3,530 

3,650 

3,630 

3,400

3,180 

3,090 

2,940 

2,820 

2,770

2,740 

2,610 

2,610 

2,520 

2,460

2,370 

2,280 

2,190 

2,130 

2,130

2,130 

2,070 

2,020 

2,000 

2,020

2,020 

1,950 

1,930 

1,850 

1,790 

1,740

Minimum Mean

1,520 2,013 

1,160 1,984 

1,500 1,758

856 3,835

1,530 1,980 

1,150 1,770 

1,100 1,811 

2,350 4,943 

6,930 15,980 

8,450 15,420 

3,280 4,823 

1,740 2,516 

1,280 1,589

1,100 4,718

Sept.

1,700 

1,720 

1,680 

1,680 

1,620

1,620 

1,640 

1,620 

1,620 

1,600

1,600 

1,590 

1,550 

1,540 

1,550

1,520 

1,540 

1,330 

1,360 

1,720

1,400 

1,280 

1,520 

1,600 

1,610

1,660 

1,730 

1,780 

1,650 

1,650

Runoff In 

acre-feet

123,800 

118,100 

108,100

2,776,000

121,700 

101,800 

111,300 

294,100 

982,400 

917,800 

296,500 

154,700 

94,570

3,425,000

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

g Computed from graph based on staff-gage readings.
FEND OREILLE RIVER BASIN

Clark Fork below Missoula, Mont.

Location.- Water-stage recorder, lat. 46°5S', long. 114°07', in SEij sec. 21, T. 13 N., R. 

20 W . , 2 miles downstream from Bitterroot River and 6 miles west of Missoula.

Drainage area.- 8,690 square miles.

Records available.- October 1929 to September 1948.

Ave rage d 1 s charge . - 19 years, 4,627 second-feet.

Extreme 3. - Maximum discharge during year, 52,800 second-feet May 23 (gage height, 12.08 

feet ) ; minimum, 1,430 second-feet Sept. 22 (gage height, 1.20 feet).

1929-48: Maximum discharge, that of May 23, 1948; minimum, 388 second-feet Jan. 18, 

1933 (gage height, 0.58 foot, backwater from ice).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Some regulation by power plant at Bonner. Many diversions above 

station for irrigation.

Revisions (water years).- W 1042: 1931.

ng tables, water year 1947-48, except period of ice effect

(gage height, in feet, and discharge, in second-feet) 

ifting-control method used Apr. 16-19, Aug. 9 to Sept. 30)

Rati

(Shifting

Oct. 1 to Apr. 22 Apr. 23 to Sept. 30

1.3 1,880 3.0 5,270 1.5 1,760 5.0 11,200 

1.8 2,680 4.0 8,260 2.0 2,620 6.5 17,600 

2.4 3,850 5.3 13,000 2.5 3,630 8.0 24,900 

3.0 4,800 10.0 37,300 

4.0 7,720 12.0 52,200

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

,560

,740 

,960 

,810 

,570

,250 

,270

,430 

,740 

,710

,590

,540 

,360 

,250 

,090

,960 

,000 

,220 

,250 

,180

,030 

,070 

,160 

,960 

,500

,240 

,580 

,620 

,660 

,620 

,620

Nov.

3,620 

3,560 

3,560 

3,660 

3,620

3,580 

3,540 

3,720

4,360 

3,740

3,960 

3,940 

3,870

3,770 

3,660

3,680 

2,620 

*3,400 

3,500 

3,540

3,420 

3,580 

2,480 

3,180 

3,500

3,700 

4,470 

4,840 

4,430 

4,250

Dec.

4,270 

4,250 

4,180 

3,920

3,870

3,720 

3,770 

3,680 

3,580 

3,620

3,500 

3,480 

3,400 

3,540 

3,560

3,360 

3,260 

3,480 

3,460 

3,540

3,420 

3,240 

3,140 

2,970 

3,050

2,900 

2,840 

8,960 

3,050 

2,880 

a2,600

Jan.

a2,800 

a2,700 

3,050 

2,990 

2,850

2,820 

4,150 

a6, 500 

6,260 

4,760

4,160 

*b3,500 

b3,000 

b2,800 

2,840

2,970 

2,900 

3,090 

3,010 

2,960

3,520 

a3,500 

3,380 

3,640 

3,380

2,680 

a2,400 

2,110 

2,210 

2,450 

2,650

Feb.

2,77O 

2,510 

2 -, 3 00 

2,190 

2,380

2,080 

2,020 

2,250 

2,540 

2,560

2,290

2,030 

2,250

2,630 

2,810

3,200 

3,130 

3,790 

4,200

3,660

3,360 

3,360 

3,640 

3,480 

3,360

3,600 

4,860 

4,520 

4,030

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 194"

ter year 1947-48 .......................

Mar.

3,660

5,480 

*3,280 

2,960 

2,730

2,810 

2,990 

2,970

2,860 

2,330

2,160 

2,480 

2,810 

3,030 

2,970

2.840 

2,880 

2,840 

2,860 

2,770

2,680 

2,700 

3,030 

3,280 

3,130

3,300

3,010 

3,240 

4,160 

5,040 

4,710

Apr.

4, 

4, 

4, 

5, 

5,

4, 

4, 

3, 

3, 

4,

4, 

4, 

3, 

3, 

4,

5,

7' 

8,

a8,

alO, 

a 13, 

14, 

14, 

13,

12, 

11, 

10, 

10, 

11,

Secondfoot-days

127,540 

111,750 

106,490

2,624,690

102,040 

87,800 

95,990 

221,500 

857,700 

903,000 

250,350 

121,140 

72,480

3,057,780

070 

070 

740 

430 

110

620 

240 

920 

970 

140

400 

210 

960 

890 

200

620 

380 

210 

420 

500

000 

000 

400 

100 

100

300 

300 

400 

100 

600

May

12,900

12,600 

12,100 

11,600 

11,300

10,700 

11,100 

14,800 

17,300 

16,900

15,800 

14,900 

14,700 

15,800 

16,800

16,700 

17,400 

21,000 

26,900 

33,900

42,600 

48,500 

51,700 

49,400 

45,600

45,100 

46,900 

49,000 

51,200 

52,000 

50,500

Maximum

4,810 

4,840 

4,270

45,200

1~ 6,500 

4,860 

5,040 

14,400 

52,000 

48,000 

14,800 

5,840 

3,040

52,000

June

45,800 

43,400 

43,600 

47,400 

48,000

45,100 

42,600 

40,900 

39,600 

38,100

35,600 

34,200 

31,800 

29,900

27,100

4,900 

4,700 

3,400 

1,300 

0,700

0,000

1,200 

1,600 

1,200 

1,000

0,400 

19,200 

18,000 

16,700 

15,600

July Aug.

14,800 5,700 

14,600 5,680 

14,600 5,840 

13,200 5,790 

12,400 5,420

11,100 5,060 

10,300 4,830 

9,600 4,550 

8,840 4,380 

8,600 4,310

7,280 4,240 

7,690 4,100 

7,590 4,060 

7,010 3,940 

6,590 3,810

6,200 3,670 

6,410 3,520 

5,480 3,360 

6,100 3,210 

6,980 3,190

7,100 3,170 

6,800 3,080 

(5,230 2,980 

5,930 3,000 

5,730 2,060

5,480 3,130 

5,170 2,980 

5,120 2,890 

5,560 2,790 

5,960 2,720 

5,900 2,680

Minimum Mean

3,240 4,114 

2,480 3,725 

2,600 3,435

1,850 7,191

2,110 3,292 

2,020 3,028 

2,160 3,096 

3,870 7,383 

10,700 27,670 

15,600 30,100 

5,120 8,076 

2,680 3,908 

1,910 2,416

1,910 8,355

Sept.

2,580 

2,580 

2,510 

2,470 

2,390

2,410 

2,430 

a2,400 

a 2, 400 

a2,350

a2,350 

a2,300 

2,290 

2,250 

2,230

2,220 

2,220 

2,110 

2,060 

2,270

2,580 

1,910 

2,250 

2,300 

2,450

2,580 

2,830 

3,040 

2,850 

2,870

Runoff In 

acre-feet

253,000 

221,700 

211,200

5,206,000

202,400 

174,100 

190,400 

439,300 

1,701,000 

1,791,000 

496,600 

240,300 

143,800

6,065,000

Peak discharge (base, 12,000 sec. -ft.).- Apr. 23 (11:30 a.m.) 14,700 sec. -ft.; May 23 (6-7 p.m.)

52,800 sec.-ft.

* winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for other Clark Pork stations.

b Stage-discharge relation affected by ice.
224 PEND OREILLE RIVER BASIN

Clark Fork at Tarkio, Mont.

Location.- Staff-gage, lat. 47°01', long. 114°44', In NE^- sec. 34, T. 15 N., R. 25 W. , 

a quarter of a mile west of Tarkio, 1-J- miles upstream from Quartz Creek, 3-5- miles 

downstream from Fish Creek,.and 15 miles west of Alberton.

Drainage area.- 9,630 square miles.

Records available.- October 1944 to September 1948.

Extremes.- Maximum discharge during year, 63,200 second-feet May 30 (gage height, 30.35 

I'eet, from graph based on gage readings); minimum dally discharge, 2,250 second-feet 

Feb. 7.

1944-48: Maximum discharge, that of May 30, 1948; minimum daily disetarge, 1,200 

second-feet Dec. 26, 1944; minimum gage height observed, 1.04 feet Sept. 5, 1945.

Remarks.- Records good. Gage read once dally. Some regulation by power plfnt at Bonner. 

Many diversions above station.

Rating tables, water year 1947-48, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used July 5-31)

Oct. 1 to July 31 Aug. 1 to Sept. 30

4.0 

6.0

2,370

3,330

4,470

7,000

9.0 

12.0 

16.0 

2O. O

11,400 

16,600 

£4,400 

34,200

24.0

28.0

30.4

44,800

56,200

63,400

0.7 

1.0 

1.5

2,340 

2,500 

2.82O

2.5 3,720

4.0 5,320

4.9 6,400

Discharge, In second-feet, water year October 1947 to September 1946

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

3,850 

4,050 

4,230 

5,070 

5,140

4,810 

4,710 

4,950 

5,170 

5,190

5,170 

4,930 

4,950 

4,710 

4,610

4,470 

4,570 

5,190 

5,120 

4,950

4,810 

4,850 

4,830 

4,540 

4,900

a4,250 

3,780 

4,110 

4,110 

3,890 

4,090

Nov.

4,110 

4,060 

3,990 

4,040 

4,180

4,040 

3,990 

4,130 

4,610 

3,940

4,470 

4,470 

4,400 

4,330 

4,130

4,160 

3,920 

*3,690 

3,990 

3,870

3,870 

3,720 

3,010 

3,290 

3,760

4,090 

4,590 

a5,300 

5,190 

4,810

Dec.

4,710 

4,380 

4,710 

4,470 

4,450

4,040 

4,230 

4,180 

4,010 

4,110

4,010 

3,890 

3,800 

3,890 

3,850

3,780 

3,780 

3,740 

3,990 

3,990

3,890 

3,850 

3,650 

3,430 

a3,400

3,230 

3,210 

3,230 

3,230 

3,430 

2,910

Jan.

2,590 

2,770 

3,430 

3,450 

3,270

3,230 

4,180 

7,200 

7,450 

5,830

5,260 

4,690 

3,940 

b3,500 

b3,400

b3,400 

b3,5OO 

b3,500 

b3.600 

b3,600

b3,900 

b4,000 

b4,000 

4,110 

4,010

3,370 

b2,900 

b2,650 

b2,700 

b2,800 

b3,000

Feb.

b3,300 

a3,250 

b2,900 

b2,700 

b2,650

b2,300 

b2,250 

b2,500 

b2,800 

b2,900

b2,800 

b2,550 

b2,600 

b£,900 

b3,200

b3,2EO 

b3,600 

b4,250 

b4,750 

b4,500

3,920 

3,800 

4,230 

4,250 

3,890

4,090 

5,090 

5,700 

5,190

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1947 

apy

ter year 1947-48 .......................

Mar.

4,370 

4,040 

3,890 

*3,650 

3,230

3,310 

3,430 

3,430 

3,520

3,210

2.K40 

2,830 

3,170 

3,290

3,330

3,330 

3,370 

3,350 

3,250 

3,210

3,230 

3,230 

3,270 

3,760

3,330

3,830 

3,270 

3,520 

3,970 

5,310 

5,540

Apr.

4,830 

4,730 

5,020 

6,140 

6,060

5,620 

5,240 

4,780 

4,590 

4,730

5,140 

5,210 

4,880 

4,610 

4,830

6,250 

11,900 

13,100 

14,100 

13,600

14,300 

15,900 

18,200 

18,200 

16,500

15,100 

13,900 

12,700 

12,200 

14,100

Second - 

foot -days

144,000 

124,150 

119,970

3,033,380

119,230 

102,110 

110,110 

286,460 

1,029,500 

1,057,500 

278,730 

137,880 

87,480

3,597,120

May

15,500 

15,500 

14,600 

13,700 

13,300

13,200 

13,400 

15,800 

19,700 

20,000

n 9,000 

18,100 

17,700 

18.30C 

19,400

19,300 

20,000 

23,100 

29,200 

38,100

49,100 

57,100 

62,300 

62,300 

60,400

56,800 

57,600 

59,800 

62,000 

63 , 000 

62,200

Maximum

5,190 

5,300 

4,880

55,000

7,450 

 5,700 

5,540 

18,200 

63,000 

57,900 

16,200 

6,330 

3,420

63,000

June

57,600 

54,300 

53,300 

55,200 

57,900

55,800 

52,400 

49,600 

46,900 

45,200

42,700 

39,000 

37,400 

35,000 

32,200

29,300 

28,100 

27,000 

24,200 

22,800

22,000 

22,100 

23,700 

22,600 

22,600

22,300 

21,000 

19,700 

18,400 

17,200

July

16,200 

15", 600 

15,600 

14,600 

13,500

12,600 

11,800 

10,900 

10,100 

9,580

8,460 

8,250 

8,460 

8,080 

7,830

7,250 

6,870 

6,580 

6,870 

7,360

7,660 

7,520 

7,030 

6,580 

6,390

6,190 

5,920 

5,830 

6,090 

6,390 

6,640

Minimum

3,780 

3 ,010 

2,910

2,250

2,590 

2,250 

2,640 

4,590 

13,200 

17,200 

5,830 

3,240 

2,370

2,250

Aug.

6,140 

6,280 

6,330 

6,230 

5,920

5,680 

5,440 

5,210 

4,990 

4,880

4,750 

4,730 

4,620

4,440 

4,370

4,180 

4,080 

3,920 

3,780 

3,780

3,740 

3,620 

3,540 

3,500 

3,500

3,500 

3,480 

3,380 

3,370 

3,260 

3,240

Mean

4,645 

4,138 

3,870

8,311

3,846 

3,521 

3,552 

9,549 

33,210 

35,250 

8,991 

4,448 

2,916

9,828

Sept.

3,030 

3,000 

2,980 

2,950 

2,960

2,930 

2,920 

2,920 

2,900 

2,880

2,840 

2,840 

2,840 

2,800 

2,760

2,740 

2,720 

2,750 

2,540 

2,560

3,420 

2,370 

2,720 

2,780 

3,040

3,060 

3,190 

3,350 

3,310 

3,380

Runoff In 

acre-feet

285,600 

246,200 

238,000

6,017,000

236,500 

202,500 

218,400 

568,200 

2,042,000 

2,098,000 

552,900 

273,500 

173,500

7,135,000

Peak discharge (base, 14.000 sec.-ft.).- Apr. 24 (4 p.m.) 18,400 sec.-ft.; May 30 (12 p.m.) 63,200 

sec.-ft.

* Winter discharge measurement made on this day. f

a No gage-height record; discharge interpolated, or computed on basis of records for other Clark 

Fork stations.

b Stage-discharge relation affected by ice.
PEND OREILLE RIVER BASIN 225

Clark Fork at St. Regis, Mont.

Location.- Water-stage recorder, lat. 47°18 I , long. 115°05', in sec. 19, T. 18 N., R. 27 

w., at St. Regis and half a mile downstream from St. Regis River.

Drainage area.- 10,500 square miles.

Records available.- October 1910 to September 1923, February 1929 to September 1948.

Average discharge.- 32 years, 7,182 second-feet.

Extremes.- Maximum discharge observed during year, 68,900 second-feet May 24 (gage height, 

19.96 feet); minimum, 1,960 second-feet Feb. 6 (gage height, 4.43 feet).

1910-23, 1929-48: Maximum discharge observed, that of May 24, 1948; minimum discharge, 1,000 second-feet Dec. 17, 1940 (gage height, 3.36 feet), but may have been 

less during period of ice effect Feb. 19-22, 1929.

Remarks.- Records excellent. Many diversions above station. Some regulation.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

4.7 2,330

5.0 2,800

6.0 4,620

7.0 6,750

Oct. 1 to May 23

8.5 10,700

10.0 15,800

12.0 2J.900

14.0 32,900

May 24 to Sept. 30

16.0 43,000

18.0 55,200

19.9 68,400

4.7 

5.0 

6.0 

7.0

2,840

3,270

5,020

7,120

8.5 11,000

10.0 15,900

12.0 23,900

Note.- Same as preceding table 

bove 12.0 feet.

Discharge, in second-feet, water year October 1947 to September 194"?

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3,940 

4,120 

4,340 

4,700 

5,300

5,180 

4,940 

5,020 

5,300 

5,510

5,470 

5,350 

5,320 

5,080 

4,940

4,860 

5,000 

5,510 

6,030 

5,870

5,660 

5,410 

5,350 

5,320 

5,100

5,390 

4,400 

4,620 

4,660 

4,620 

4,620

Nov.

,560 

,520 

,460 

,440 

,560

,460 

,400 

,560 

,820 

,110

,860 

,880 

,880 

,800 

,660

,580 

,520 

,420 

,310 

,3*0

,320 

,190 

,300 

,400 

,000

,340 

,700 

,430 

,620 

,320

Dec.

,220 

,220 

,160 

,060 

,860

,700 

,640 

,600 

,520 

,440

,440 

,310 

,290 

,230 

,340

,310 

,140 

,120 

,380 

,320

,320 

,210 

,020 

,910 

,800

,800 

,630 

,620 

,710 

,720 

3,330

Jan.

3,110 

3,120 

3,450 

3,800

3,670

3,630 

4,460 

6,720 

8,440 

7,250

6,110 

5,580 

5,000 

4,420 

4,210

4,060 

4,120 

4,100 

4,150 

4,120

4,150 

4,580 

4,660 

4,500 

4,580

4,120 

3,380 

3,070 

2,950 

3,000 

3,290

Feb.

3,540 

3,600 

3,400 

3,190 

2,850

2,420 

2,660 

2,800 

3,040 

3,310

3,280 

2,900 

2,740 

3,060 

3,470

3,670 

4,060 

4,500 

5,180 

5,260

4,660 

4,420 

4,520 

4,680 

4,480

4,580 

5,100 

6,050 

5,620

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194 .......................

h.. .....................................

ter year 1947-48 .......................

Mar.

5,180 

4,780 

4,580 

4,270 

3,930

3,760 

3,780 

3,930 

3,890 

3,510

3,110 

3,090 

3,330

3,600 

3,800

3,740 

3,650

3,690 

3,670 

3,650

3,560 

3,620 

3,690 

4,020 

4,150

4,060 

4,210 

3,960 

4,380 

5,510 

6,200

Apr.

5,850 

5,410 

5,700 

6,520 

6,970

6,610 

6,090 

5,770 

5,450 

5,450

5,720 

5,980 

5,720 

5,350 

5,490

6,610 

10,600 

14,000 

16,500 

16,900

17,700 

19,500 

21,500 

21,900 

20,500

18,700 

17,000 

15,500 

15,100

16,600

Secondfoot-days

156,930 

137,740 

133,370

3,367,830

135,800 

113,040 

124,300 

336,690 

1,152,700 

1,182,700 

317,220 

158,850 

98,800

4,048,140

Peak: discharge (base, 17,000 sec. -ft.).- Apr. 24 (2 a.

May

18,500 

18,600 

17,700 

16,900 

16,500

16,100 

17,100 

19,600 

23,200 

23,600

22,400 

21,500 

21,500 

22,400 

23,300

23,800 

24,600 

27,600 

33,100 

41,100

50,600 

g60,200 

g65,600 

g68,100 

g64,300

g61,900 

g63,200 

g66,900 

68,000 

67,600 

67,200

Maximum

6,030 

5,620 

5,220

54,600

8,440 

6,050 

6,200 

21,900 

68,100 

63,700 

18,600 

7,000 

3,740

68,100

m. ) 22,300

June

63 ,.700 

59,200 

58,000 

59,700

62,500

60,500 

57,100 

54,100 

51,800 

50,300

47,500 

44,200 

41,700 

38,700 

36,100

33,400 

32,600 

31,400 

29,200 

27,100

26,300 

25,800 

26,800 

26,200 

25,900

25,200 

24,200 

22,600 

21,100 

19,800

July

18,600 

17,800 

17,600 

16,900 

15,300

14,300 

13,100 

12,300 

11,500 

11,100

10,100 

9,400 

9,630 

9,240 

8,740

8,360 

8,070 

7,930 

7,120 

8,510

8,640 

8,540 

8,050 

7,540 

7,260

7,050 

6,780 

6,670 

6,870 

7,030 

7,190

Minimum

3,940 

3,400 

3,330

2,400

2,950 

2,420 

3,090 

5,350 

16,100 

19,800 

6,670 

3,740 

2,870

2,420

Aug.

6,960 

6,940

6,890 

7,000 

6,760

6,470 

6,200 

5,990 

5,780 

5,620

5,540 

5,420 

5,260 

5,180 

5,040

4,890 

4,750 

4,600 

4,480 

4,370

4,30O 

4,240 

4,190 

4,100 

4,080

4,140 

4,140 

4,020 

3,950 

3,810 

3,740

Mean

5,062 

4,591 

4.302

9,227

4,381 

3,898 

4,010 

11,220 

37,180 

33,420 

10,230 

5,124 

3,293

11,060

see. -ft.; May 1 (12 p.

Sept.

3,660 

3,590 

3,560 

3/4.90 

3^*50

3,380 

3,380 

3,370 

3,350 

3,330

3,290 

3,240 

3,210 

3,160 

3,110

3,090 

3,060 

3,080 

2,980 

2,940

3,140 

3,200 

2,870 

3,080 

3,150

3,270 

3,400 

3,590 

3,740 

3,640

Runoff In 

acre-feet

311,300 

273,200 

264,500

6,679,000

269,400 

224,200 

246,500 

667,800 

2,286,000 

2,346,000 

629,200 

315,100 

196,000

8,029,000

m. ) 18,600

sec.-ft.; May 24 (11 a.m. ) 68,900 sec.-ft.

g Computed from graph based on staff-gage readings.
FEND OREILLE RIVER BASIN

Clark Fork near Plains, Mont.

Location.- Water-stage recorder, lat. 47°26', long. 114°51' , on lot 7, SWij sec. 1, T. 19 

N., K. 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 1948.

Average discharge.- 32 years (1912-15, 1917-19, 1920-24, 1925-48), 18,270 second-feet.

Extremes.- Maximum discharge during year, 134,000 second-feet June 5 (gage height, 19.17 

 feet); minimum, 6,150 second-feet Sept. 21 (gage height, 3.89 feet).

1910-48: Maximum discharge, that of June 5, 1948; minimum, 3,200 second-feet 

Feb. 8, 1936, Dec. 10, 1940; minimum gage height, 2.85 feet Dec. 10, 19^0.

Remarks . - Records good. Many diversions above station for irrigation. 

by Flathead Lake (see p. 256).

Some regulation

Rating tables, water year 1947-48, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to June 5 June 6 to Sept. 30

4.4 8,570 8.0

5.0 11,200 9.5

6.0 16,000 11.0

7.0 21,300 12.5

27,200

37,600

49,600

63,000

14.0 77,900

16.0 98,000

18.0 120,000

19.1 133,000

3.9 6,180 7.0

4.3 7,620 8.5

5.0 10,400 10.0

6.0 14,800 12.0

19.700

28,800

39,200

55,500

14.0 74,100

16.0 95,200

18.0 119,000

19.1 133,000

Discharge, in second-feet, water year October 1947 to September If48

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9,000 

9,260 

9,520 

9,650 

10,000

10,500 

10,400 

11,000 

12,100 

12,200

12,900 

13,800 

13,700 

13,600 

13,400

13,300 

12,800 

13,600 

14,400 

15,300

20,600 

32,000 

36,600 

35,900 

30,800

29,700 

24,000 

21,200 

16,500 

14,400 

13,900

Nov.

14,000 

14,300 

14,700 

14,600 

14,700

14,700 

14,600 

14,700 

15,200 

15,600

17,000 

18,800 

18,700 

18,500 

18,400

18 , 100 

17,500 

17,000 

*15,200 

14,000

13,500 

13,500 

12,500 

11,000 

11,500

12,000 

12,200 

12,500 

12,800 

12,500

Dec.

12,000 

12,500 

12,000 

11,500 

11,000

11,000 

11,000 

10,500 

10,500 

12,900

13 , 500 

13,500 

13,500 

13 , 000 

13 , 000

13,000 

13,000 

13,500 

14,000 

14,000

14,000 

13,500 

13,500 

13 , 000 

13,000

13 , 000 

13,000 

12,500 

12,500 ' 

12,500 

12,500

Jan.

12,500 

12,900 

13,000 

13,300 

13,100

13,400 

15,000 

16,500 

18,200 

19,800

18,900 

17,500 

15,000 

13,500 

13,000

13,000 

13,000 

13,000 

13,000 

13,500

14,500 

14,600 

14,800 

15,400 

15,700

15,300 

14,500 

b!3,500 

bl3,500 

bl3,000 

13,200

Feb.

13,200 

13,000 

b!3 , 000 

12,700 

12,900

b!2,500 

b!2,500 

blS.OOO 

13,300 

13,100

1)12,500 

bU.2,000 

b!2,000 

b!2,000 

b!2,000

12,000 

12,400 

13 , 000 

13,000 

14,000

13,500 

13,000 

13,000 

13 , 000 

13,000

13,500 

14,000

14,500 

14,000

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194 7

ter year 1947-48 .......................

Mar.

13,500 

13,000 

12,500 

12,000 

»1 1,500

11,100 

10,900 

10,900 

11,000 

10,400

9,300 

9,520 

9,040 

8,780 

9,260

9,430 

9,300 

9,260 

9,040 

8,870

8,740 

8,700 

8,830 

8,780 

9,430

9,340 

9,260 

8,830 

8,960 

10,300 

10,900

Apr.

10,800 

10,500 

11,000 

12,000 

12,500

12,000 

11,500 

11,600 

10,900 

10,400

10,600 

10,900 

11,300 

10,200 

10,100

11,700 

17,200 

21,300 

24,200 

25,500

28 , 100 

31,000 

33,100 

33,500 

32,900

32,500 

31,900 

31,300 

32,200 

33,500

Secondfoot-days

516,030 

444,300 

391,900

8,964,200

449,100 

375,600 

310,670 

586,200 

2,239,200 

3,049,300 

656,700 

414, 920 

252,770

9,686,690

May

35,600 

37,400 

37,900 

37,600 

37,600

38,000 

39,200 

42,500 

48,100 

50,000

49,600 

48,900 

48,700 

49,600 

51,000

52,200 

52,900 

56,300 

62,900 

73,800

87,400 

100,000 

109,000 

114,000 

117,000

118,000 

122,000 

127,000 

130,000 

132,000 

133,000

Maximum

36,600 

18,800 

14,000

104,000

19,800 

14,500 

13,500 

33,500 

133,000 

133,000 

31,400 

22,400 

9,520

133,000

June

132,000 

129,000 

129,000 

131,000 

133,000

132,000 

130,000 

128,000 

125,000 

124,000

122,000 

118,000 

113,000 

108,000 

104,000

99,200 

96,600 

94 , 000 

89,900 

85,200

82,300 

79,900 

79,300 

77,700 

76,000

74,200 

71,500 

68 , 400 

64,500 

52,600

July

31,400 

26 , 000 

25,100 

24,900 

33,800

22,900 

22,000 

21,300 

20,600 

18,200

18,200 

21,000 

24,700 

24,800 

24,300

20,100 

16,100 

16,500 

16,300 

17,800

23 , 200 

24,300 

24,100 

21 , 200 

16,800

15,300 

15,000 

15,000 

19,200 

22,800 

23,800

Minimum

9,000 

11,000 

10,500

7,950

12,500 

12 , 000 

8,700 

10,100 

35,600 

52,600 

15,000 

9,600 

6,500

6,500

Aug.

22,400 

13,700 

16,100 

18,800 

18,400

17,500 

16,500 

15,800 

15,400 

15,300

15,200 

14,800 

14,400 

14,000 

13,200

12,700 

11,400 

11,100 

10,700 

10,900

11,500 

11,500 

12,100 

11,300 

10,900

10,200 

10,000 

9,980 

9,810 

9,730 

9,600

Mran

16,650 

14,810 

12,640

24,560

14,490 

12,950 

10,020 

19,540 

72,230 

101,600 

21,180 

13,380 

8,426

26,470

Sept.

9,520 

9,400 

9,240 

8,960 

9,080

9,080 

9,080 

9,080 

9,080 

9,040

9,000 

8,960 

8,880 

8,880 

8,800

8,800 

8,720 

8,200 

8,680 

7,060

7, 200 

8,200 

7,620 

7,850 

7,890

7,770 

6,500 

7,400 

7,400 

7,400

Runoff in 

acre-feet

1,024,000 

881,300 

777,300

17,780,000

890,800 

745,000 

616,200 

1,163,000 

4,441,000 

6 , 048 , 000 

1,303,000 

823,000 

501,400

19,210,000

Peak discharge (base. 47,000 sec.-ft.).- June 5 (1:30 p.m.) 134,000 sec.-ft. 

 Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 20-26, Dec. 1-9, 11-31, Jan. 1, 7, 8, 13-19, Pet. 18 to Mar. 4, 

Apr. 2-7, Sept. 27-30; discharge computed on basis of records for other Clark Fork Stations.
PEND OREILLE RIVER BASIN 227

Clark Pork near Heron, Mont.

Location.- Water-stage recorder, lat. 48°04', long. 115°59', in sec. 28, T. 27 N., R. 34 

w., bUO feet upstream from Dead Horse Creek and lj miles northwest of Heron.

Drainage area.- 21,800 square miles.

Records available.- September 1928 to September 1948.

Average discharge.- 20 years,-19,480 second-feet.

Extremes.- Maximum discharge during year, 153,000 second-feet May 29 to June 1; maximum 

gage height, 50.97 feet May 31; minimum discharge, 5,340 second-feet Sept. 28 (gage 

height, 10.56 feet); minimum dally, 7,270 second-feet Sept. 28.

1928-48: Maximum discharge, that of May 29 to June 1, 1948; minimum, 620 secondfeet Dec.23, 1935, during period of extreme regulation (gage height, 7.59 feet), from 

rating curve extended below 4,000 second-feet; minimum daily, 1,110 second-feet Dec. 

23, 1935.

Maximum discharge known, 195,000 second-feet June 1894 (gage height, 5P.1 feet, 

present datum, from floodmark an eighth of a mile downstream).

Remarks.- Records excellent. Some regulation by Flathead Lake (see p. 256); diurnal 

fluctuation at low flow caused by power plant at Thompson Falls. Diversions from 

tributaries above station for irrigation.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet 

(Shifting-control method used June 14 to Sept. 30)

11.6

12.8

14.0

16.0

19.0

7,170

9,500

12,100

16,800

25,100

22.0

26.0

30.0

34.0

38.0

34,500

48,900

64,400

80,400

96,900

42.0 114,000

46.0 131,000

51.0 154,000

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9,500 

9,960 

10,500 

10,700 

10,800

11,300 

11,5QO 

11,700 

12,200 

13,100

13 , 700 

14,100 

14,700 

14,500 

14,400

14,700 

15,100 

15,000 

16,300 

18,300

20,300 

f 25, 500 

f 3 7, 000 

f 41, 400 

36,000

f 31, 900 

f 30, 600 

23,500 

21,000 

17,100 

15,600

Nov.

15,800 

15,600 

16,000 

16,100 

16,000

16,100 

15,900 

16,100 

16,300 

16,900

a!9,000 

a!9,500 

320,000 

a20,000 

a20,000

a!9,600 

a!9,400 

a!9,000 

a!7,500 

15,700

14,800 

14,900 

14,700 

13,700 

11,800

12,400 

12,800 

13,400 

13,700 

14,000

Dec.

13,800 

13,600 

a!3,400 

13,300 

13,000

12,700 

12,200 

12,600 

12,200 

12,200

13,300 

14,700 

14,800 

14,900 

14,700

14,500 

14,700 

15,000 

15,500 

15,600

15,600 

15,400 

14,900 

15,000 

14,800

14,500 

14,300 

14,200 

14,100 

13,900 

13,900

Jan.

13,700 

14,300 

14,500 

14,500 

14,700

14,800 

16,000 

17,000 

18,700 

20,800

21,600 

20,100 

18,800 

15,700 

14,200

14,200 

14,200 

14,500 

14,400 

14,400

15,600 

16,200 

16,800 

16,500 

17,000

16,900 

15,900 

14,800 

14,100 

14,400 

14,500

Feb.

14,800 

14,900 

14,200 

13,600 

13,400

12,900 

12,700 

13,800 

15,000 

14,600

14,000 

12,600 

12,400 

13,700 

13,900

13,800 

14,100 

15,000 

15,000 

15,200

15,800 

15,700 

15,200 

15,000 

15,000

15,600 

16,200 

16,200 

16,500

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1947

ter year 1947-48 .......................

Mar.

16,100 

15,400 

14,800 

14,400 

13,800

13,300 

12,900 

12,700 

12,500 

12,400

11,900 

10,800 

10,900 

10,500 

10,000

10,700 

10,900 

10,800 

10,500 

10,400

10,300 

10,400 

10,500 

10,900 

10,400

10,700 

11,100 

10,600 

11,100 

11,300 

12,400

Apr.

13,100 

13,300 

13,500 

14,100 

14,800

15,100 

14,800 

14,400 

14,000 

13,600

13,400 

13,400 

13,600 

13,700 

13,000

13,400 

16,100 

23,800 

29,400 

33,500

34,400 

38,700 

41,200 

42,800 

43,300

41,900 

40,400 

39,100 

38,600 

40,400

Secondfoot-days

561,960 

486,700 

437,300

10,064,690

493,800 

420,800 

365,400 

724,800 

2,617,100 

3,472,700 

768,000 

458,900 

273,040

11,080,500

May

42,600 

44,600 

45,200 

45,300 

44,900

45,200 

46,900 

50,80O 

54,900 

58,300

58,400 

57,700 

58,100 

59,500 

60,000

61,100 

62,800 

66,400 

72,200 

83,300

98,900 

114,000 

126,000 

132,000 

138,000

140,000 

144,000 

148,000 

152,000 

153,000 

153,000

Maximum

41,400 

20,000 

15 ,'600

113,000

21,600 

16,500 

16,100 

43,300 

153,000 

152,000 

51,300 

25,500 

11,200

153,000

June

152,000 

150,000 

147,000 

148,000 

150,000

151,000 

149,000 

146,000 

a!42,000 

a!39,000

1137,000 

1134,000 

i!29,000

n 24, ooo

118,000

114,000 

110,000 

107,000 

103,000 

98,100

93,600 

90,200 

88,000 

B7,000 

84,900

82,700 

80,200 

76,800 

73,200 

68,000

July

51,300 

34,800 

31,300 

30,100 

29,100

27,700 

26,700 

25,600 

24,700 

23,800

21,400 

21,100 

24,900 

27,200 

27,100

26,300 

21,800 

18,500 

19,000 

18,700

20,800 

25,700 

26,200 

25,600 

21,800

18,300 

17,200 

17,000 

17,100 

22,200 

25,000

Minimum

9,500 

11,800 

12,200

8,930

13,700 

12,400 

10,000 

13,000 

42,600 

68,000 

17,000 

10,300 

7,270

7,270

Aug.

25,500 

22,400 

15,200 

18,500 

20,200

19,600 

18,000 

17,700 

16,900 

16,200

16,600 

16,300 

15,500 

15,200 

14,900

14,300 

13,800 

12,500 

11,900 

11,700

12,100 

12,600 

12,300 

12,900 

12,200

11,500 

10,800 

10,500 

10,400 

10,400 

10,300

Mean

18,130 

16,220 

14,110

27,570

15,930 

14,510 

11,790 

24,160 

84,420 

11E.800 

24,770 

14,800 

S.101

3C.270

Sept.

9,860 

10,100 

9,630 

9,960 

9,650

9,750 

9,520 

11,200 

9,940 

9,880

9,650 

9,630 

9,540 

9,480 

9,350

9,330 

9,330 

9,250 

8,870 

9.190

8,010 

7,780 

8,770 

8,260 

8,530

7,540 

7,570 

7,270 

8,100 

8,100

Runoff in 

acre-feet

1,115,000 

965,400 

867,400

19,960,000

979,400 

834,600 

724,800 

1,438,000 

5,191,000 

6,888,000 

1,523,000 

910,200 

541,600

21,980,000

a Ho gage-height record; discharge computed on basis of records for stations at St. Regis and near 

Plains.

f Computed on basis of partly estimated gage-height record.
328 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 N., 

R~IIE., at floating dock neir Northern Pacific Railway station at Hope. Datura 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 1948. March 1914 to Septenrter 1922 at 

site at Sandpoint.

Extremes.- Maximum contents during year, 2,462,000 acre-feet June 9 (elevation, 2,071.82 

feet); minimum, 243,800 acre-feet Sept. 30 (elevation, 2,047.99 feet).

1921-48: Maximum contents, that of June 9, 1948; 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.- Diversions from tributaries of Clark Fork for irrigation. Pend Or°ille Lake is 

a natural lake and there is no regulating structure at the outlet.

Correction.- The daily gage height for Aug. 16, 1946, has been corrected to 48.95 feet, 

superseding figure published in Water-Supply Paper 1062.

Elevation, in feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

48.29

48.31

48.33

48.33

48.39

48.38

48.37

48.42

48.44

48.52

48.59

48.65

48.71

48.78

48.87

49.05

49.24

49.39

49.56

49.81

50.07

50.33

50.70

51.13

51.51

51.78

51.97

52.04

52.01

51.94

51.78

Nov.

51.62

51.50

51.41

51.33

51.23

51.13

51.05

50.99

50.93

50.87

50.85

50.82

50.85

50.90

50.90

50.88

50.86

50.87

50.84

50.81

50.68

50.61

50.53

50.43

50.33

50.23

50.12

50.03

49.96

49.92

-

Dec.

49.91

49.85

49.79

49.74

49.69

49.63

49.58

49.50

49.45

49.40

49.36

49.35

49.37

49.39

49.41

49.41

49.46

49.51

49.60

49.62

49.66

49.67

49.67

49.65

49.65

49.63

49.62

49.62

49.61

49.59

49.56

Jan.

49.56

49.57

49.60

49.62

49.61

49.69

49.77

49.86

49.92

50.03

50.15

50.26

50.29

50.28

50.20

50.12

50.06

50.00

49.96

49.91

49.87

49.86

49.86

49.88

49.87

49.88

49.87

49.83

49.77

49.73

49.70

Feb.

49.65

49.61

49.58

49.51

49.50

49.54

49.51

49.50

49.52

49.52

49.50

49.46

49.41

49.38

49.42

49.42

49.45

49.52

49.56

49.58

49.58

49.63

49.66

49.66

49.67

49.73

49.80

49.82

49.83

-

Mar.

49.85

49.88

49.86

49.82

49.78

49.73

49.68

49.60

49.51

49.44

49.39

49.30

49.23

49.18

49.10

49.03

48.97

48.95

48.92

48.88

48.86

48.88

48.90

48.88

48.86

48.86

48.84

48.85

48.86

48.89

48.91

Apr.

48.95

49.05

49.16

49.24

49.30

49.39

49.44

49.48

49.52

49.57

49.59

49.61

49.61

49.59

49.59

49.61

49.75

50.00

50.39

50.81

51.26

51.74

52.26

52.75

53.25

53.62

53.87

54.08

54.25

54.43

-

May

54.62

54.83

55.03

55.23

55.41

55.57

55.75

56.01

56.29

56.62

56.95

57.22

57.51

57.77

58.02

58.22

58.45

58.69

58.99

59.48

60.25

61.21

62.38

63.66

64.73

65.72

66.65

67.52

68.40

69.11

69.71

June

70.21

70.60

70.92

71.15

71.35

71.55

71.71

71.77

71.80

71.79

71.68

71.60

71.38

71.11

70.77

70.42

70.03

69.60

69.15

68.70

68.18

67.66

67.13

66.62

66.16

65.72

65.28

64.82

64.35

63.90

-

July

63.25

62.30

61.28

60.30

59.50

58.75

58.07

57.41

56.81

56.26

55.75

55.26

54.84

54.56

54.34

54.13

53.89

53.59

53.31

53.12

52.84

52.72

52.70

52.64

52.52

52.34

52.16

51.99

51.80

51.71

51.71

Aug.

51.75

51.78

51.67

51.51

51.47

51.38

51.26

51.18

51.08

50.97

50.88

50.80

50 . 70

50.59

50.49

50.42

50.28

5O.2O

50.08

49.94

49.81

49.74

49.68

49.62

49.54

49.48

49.41

49.31

49.25

49.17

49.11

Sept.

49.02

48.98

48.94

48.85

48.79

48.74

48.68

48.66

48.64

48.60

48.58

48.56

48.52

48.49

48.47

48.42

48.39

48.38

48.36

48.35

48.31

48.27

48.26

48.21

48.16

48.16

48.11

48.06

48.03

48.01

-

Note.- Add 2,OOO feet to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1947 to September Iff48

Date

Dec. 31. .................

Calendar year 1947. ....

Water year 1947-48. ....

Elevation 

(feet)t

2,049.54

-

-

Contents 

(acre-feet)

56O.4OO

375,200

-

-

Change in conterts 

during month 

(acre-feet)

_

+290,600

-155,100

-30,100

-169,500

+11,200

+14,6OO

+1,463,000

-624,000

-1,085,300

-223,600

-26,000

t Elevation at 12 p.m.
PEHD OREILLE RIVER BASIN 229

Pend Oreille River below Z Canyon, near Metaline Falls, Wash. 

(International gaging station)

Location.- Water-stage recorder, lat. 4e°59' , long. 117°21', in lot 2, sec. 11, T. 40 N., 

R. 43 E., three-quarters of a mile downstream from Z Canyon, ij miles south of international boundary, 5 miles downstream from Slate Creek, and 10 miles downstream from 

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.

riecords available.- October 1928 to September 1948. November- 1908 to September 1910 and 

October 1912 to September 1928 at site at Metaline Falls, 10 miles upstream, published 

as Clark Fork at Metaline Falls.

Average discharge.- 36 years (1912-48), 25,620 second-feet.

Extremes.- Maximum discharge during year, 171,300 second-feet June 13 (gage height, 60.25

 TeFETT minimum, 10,500 second-feet Sept. 30 (gage height, 12.38 feet).

1912-48: Maximum discharge, that of June 13, 1948; minimum, 2,500 second-feet Dec. 

12, 1919(gage height -2.4 feet, site and datum then in use).

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. Many small diversions from tributaries for irrigation. Flow affected by 

natural storage in Pend Oreille Lake (see preceding page) and some regulation by Flathead Lake ( see p. 256).

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 1947-48 (gage height, In feet, 

and discharge, In second-feet)

12.4

13.0

13.5

14.0

15.0

10,500

12,200

13,700

15,300

18,800

16.0 22,600

17.0 26,200

29,300

32,400

35,400.

18.0

19.0

20.0

21.0

23.0

25.0

27.0

29.0

38,400 

44,600 

50.6OO 

56,800 

62,800

31.0

33.0

35.0

37.5

40.0

69,000

75,000

81,200

88,800

96,400

42.5

45.0

47.5

50.0

52.5

104,000

111,600

119,300

126,900

135,400

55.0

57.5

60.2

145,500

157,300

171,100

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

11,800

11,800

11,600

11,600

11,700

11,800

12,200

12,600

12,500

12,700

12,800

13,100

13,200

13,500

13,900

15,000

15,600

16,100

17,300

18,100

19,400

20,500

21,500

22,700

24,500

26,600

27,800

29,200

29,600

29,800

29,600

Nov.

29,400

28,8OO

28,000

27,600

27,100

26,700

26,100

25,700

25,300

25,100

24,700

24,400

24,400

24,500

24,400

24,700

24,700

24,600

24,300

24,200

24,100

23,800

23,300

22,700

22,300

21,800

21,300

21,000

20,500

20,300

Dec.

19,900

19,500

19,300

19,200

19,000

18,400

18,000

18,000

17,700

17,400

17,100

17,000

17,000

16,800

16,800

17,000

17,400

17,800

18,100

18,100

18,700

18,700

18,600

18,600

18,500

18,600

18,500

18,600

18,300

18,000

17,900

Jan.

18,100

18,400

18,200

18,100

18,300

18,400

18,800

19,300

19,300

19,700

21,100

20,000

20,600

21,100

21,200

21,000

20,700

20,300

20.0OO

19,600

19,400

19,100

19,000

19,000

19,200

19,400

19,500

19,200

18,900

18,900

18,500

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ........................ .

July ..........................

August .... ...................

September .....................

Water year 1947-48 ..........

Feb.

18,400

18,700

18,300

18,100

17,400

14,600

12,000

14,500

15,600

17,400

16,500

16,900

17,000

17,100

17,200

16,900

17,100

18,100

17,700

18,700

18,900

18,600

18,300

18,400

18,400

18,700

18,600

18,700

19,100

_

-

Secondfoot-days

550,100

735,800

562,500

12,281,300

601,300

505,900

531,700

756,400

2,376,600

4,515,700

1,661,000

722,300

379,100

13,898,400

Mar.

19,300

19,300

19,500

19,600

19,400

19,200

18,900

18,600

18,400

18,600

18,000

17,600

17,300

16,900

16,600

16,300

16,200

16,100

15,600

15,300

15,400

15,300

15,000

15,700

16,200

16,200

16,000

16,200

16,300

16,200

16,500

Maximum

29,800

29,400

19,900

107,000

21,200

19,100

19,600

43,900

139,700

171,100

103,000

29,200

16,200

171,100

Apr.

16,500

16,800

17,500

17 , 600

18.2OO

18,200

18,600

18,700

19,000

19,200

19,500

19,500

19,400

19,500

19,600

20,600

21,600

22,600

23,700

25,300

27,300

29,900

31,600

33,700

35,900

38,000

39,800

41,600

43,100

43,900

-

Hay

44,700

45,400

46,600

48,800

49,900

51,200

52 , 800

54,000

56,000

57,600

59,100

61,000

63,600

65 , 300

66,500

68,300

69,800

70,800

72,500

75,400

78,400

82,300

88,400

95,500

102,700

110,000

116,900

123,100

127,400

132,900

139,700

Minimum

11,600

20,300

16,800

11,600

18,100

12,000

15,000

16,500

44,700

108,000

29,500

16,800

 10,600

10,600

June

145,400

149,700

153,400

152,100

153,200

154,100

156,300

160,100

163,600

166,600

169,200

171,000

171,100

170,600

169,300

168,000

168,000

164,000

160,000

156,000

151,000

146,000

141,000

137,000

132,000

127,000

122,000

117,000

113,000

108,000

-

Mean

17,750

24,530

18,150

33,650

19,400

17,440

17,150

25,210

76,660

150,500

53,580

23,300

12 , 640

37,970

July

103,000

99,000

94,000

89,000

85,000

80,000

74,200

70,500

66,000

62,100

58,500

54,800

51,500

48,900

46,700

45,300

43,600

42,200

40,600

39,000

37.60C

36.40C

35,50C

34,500

33,900

33,500

32,800

32,000

31,200

30,200

29,500

Per

square 

mile

0.704

.973

.720

1.34

.770

.692

.681

1.00

3.04

5.97

2 .13

. 925

.502

1.51

Aug.

29,100

29,

29,

29,

100

200

300

28,100

27,500

27,

26,

26,

100

700

300

25,900

25,400

25,

24,

24,

100

BOO

100

23,600

23,000

22,

22,

21,

500

400

600

21,100

20,

20,

20,

20,

19,

19,

19,

18,

18,

17,

16,

800

700

400

100

700

400

000

600

000

400

800

Sept.

16,200

15,600

15,100

14,300

14,100

13,900

13,800

13,600

13,300

13,300

13,100

12,900

12,700

12 , 600

12,500

12,000

12,100

11,900

11,900

11,800

11,700

11,600

11,500

11,100

11,200

11,500

11,300

11,000

10,900

10,600

~

Runoff

Irches

0.81.

1.09

.83

18.12

.89

.75

.78

1.12

3.51

6.66

2.45

1.07

.56

20.52

Acre-feet

1,091,000

1,459,000

1,116,000

24,360,000

1,193,000

1,003,000

1,055,000

1,500,000

4,714,000

8,957,000

3,295,000

1,433,000

751,900

27,570,000

Note.- No gage-height record June 17 to July 6, Aug. 21 to Sept. lj discharge connuted on basis of 

recorded range in stage and records for nearby streams.
230 PEHD OREILLE RIVER BASIN

Smaller Reservoirs in Pend Oreille River Basin, Mont. 

Georgetown Lake on Flint Creek, 2 miles west of Southern Cross, storage began about 1905

 for 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, has usable capacity of 31,000 acre-feet. Records furnished by Montana Power Co.

East Fork Rock Creek Reservoir on East Fork Rock Creek, 14 miles southwest of Philipsburg,

 storage began in 1938 for irrigation in Flint Creek Valley, has usable caoacity of

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, has usable capacity of 12,600 acre-feet. Records furnished b;r Montana

State Water Conservation Board. 

West Fork Bitterroot River Reservoir on West Fork Bitterroot River, 7 miles upstream from

 Nez Perce Creek and ay miles south of Darby, storage began in 1940 for irrigation, has 

usable capacity of 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,

 has usable capacity of 34,800 acre-feet. Records furnished by Bitterroot Irrigation

District. 

Camas Reservoirs comprise a group of four reservoirs in Little Bitterroot River Basin,

 which are operated for irrigation. Records furnished by Office of Indian Affairs.

Little Bitterroot Lake on Little Bitterroot River, 2 miles southwest of Marion, storage 

began in 1918, has usable capacity of 24,000 acre-feet. Hubbart Reservoir on Little 

Bitterroot River, 9 miles northwest of Niarada, storage began in 1924, has usable capacity of 12,100 acre-feet. Upper Dry Fork Reservoir on Dry Fork Creek, 4 miles northwest of Lonepine, storage began in 1940, has usable capacity of 2,700 acre-feet. Dry 

Fork Reservoir on Dry Fork Creek, 1 mile west of Lonepine, storage began in 1921, has 

usable capacity of 4,000 acre-feet.

Mission Valley Reservoirs comprise a group of eight reservoirs in the area east of and

 tributary to .Kiathead River between Flathead Lake and the Jocko River, which are operated for irrigation. Records furnished by Office of Indian Affairs. Twin Reservoir, 

fed entirely by canals, 4 miles southeast of Poison, storage began in 1932, has usable 

capacity of 1,210 acre-feet. Pablo Reservoir, fed entirely by canals, 3 miles south of 

Poison, storage began in 1914, has usable capacity of 25,000 acre-feet. Lower Crow 

Reservoir on Crow Creek, 6 miles west of Ronan, storage began in 1933, has usable capacity of 10,350 acre-feet. Kicking Horse Reservoir, fed entirely by canals, b miles 

south of Ronan, storage began in 1930, has usable capacity of 8,3faO acre-feet. Ninepipe Reservoir, fed entirely by canals, 2 miles northeast of Charlo, storage began in 

1911, has usable capacity of 14,870 acre-feet. McDonald Reservoir on Post Creek, 

9 miles east of Charlo, storage began in 1919, has usable capacity of. 8,220 acre-feet. 

Mission Reservoir on Mission Creek, 4 miles east of St. Ignatius, storage began in 

1935, has usable capacity of 7,260 acre-feet. Tabor Reservoir on Dry Creek, 8 miles 

southeast of St. Ignatius, storage began in 1919, has usable capacity of 23,000 acre-feet. 

Lower Jocko Lake on Middle Fork Jocko River, it> mixes east of Ariet, storage oegail in

 19^7, has usable capacity of 7,600 acre-feet. Records furnished by Offie? of Indian

Affairs. 

Thompson Falls Reservoir on Clark Fork, at Thompson Falls, for power developrient, has usaDie capacity of 15.UUO acre-feet. Records furnished by Montana Power Co. 

Other reservoirs of small capacity, principally on tributaries of Bitterroot River, are

operated for irrigation.

Monthly change in contents, in acre-feet, water year October 1947 to Septembsr 194S

Month

December ......................

(Contents sept. 30) ............

Water year 1947-48 ..........

Month

(Contents Sept. 30) ........ ...

December. ................ ...

Calendar year 1947 ..........

 (Contents Sept . 30) ............

Water year 1947-48. ........

Georgetown 

Lake

+60

(28,360)

0

Camas 

Reservoirs

+580

+20,940

+450

(36,630)

+15,210

East Pork 

Rock Creek 

Reservoir

.

(9,860)

+2,720.

Valley 

Reservoirs

(23 250)

+4,480

+11,860

+29 230

(30,190)

+6,940

Nevada 

Creek 

Reservoir

-

(10,710)

_

Lower 

Jocko Lake

-

(1,100)

-220

West Fork 

Bitterroot 

River 

Reservoir

8-10,330

aO

a{27,280)

-3,900

Falls 

Reservoir

-1,050

-580

-550

(12,430)

+78C

Como 

Lake

+3,600

900

(5,300)

-4,900

a Interpolated on basis of readings made weekly 

or less frequently.

b Based on gage readings on first day of following month, 

e Change in contents for 2-month period.

d Change in contents for 7-month period, 

e Change in contents for f-month period, 

f Change in contents for -raontti periofl.
PEND OREILLE RIVER BASIN ; 

Flint Creek near Southern Cross, Mont.

Location.- Staff gage and Cippoletti weir, lat. 46°14', long. 113°18', in NW^ see. 36, 

T. 6 N. , R. 14 W., half a mile downstream from power plant, 2 miles downstream front 

Georgetown 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 1948.

Extremes.- Maximum discharge observed during year, 146 second-feet June 4 to July 6; 

minimum discharge observed, 25 second-feet Sept. 9-13.

1940-48: 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 Montana Power Co., under general supervision of Geological Survey, In connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

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 

29 

29 

29

29 

29 

29 

29 

29

29 

29 

29 

29 

29

29 

29 

29 

29 

29

29 

29 

29 

29 

29

29 

29 

29 

29 

29 

29

Nov.

29 

29 

f38 

f53 

55

43 

35 

48

62 

62

60 

52 

44 

f36 

30

30 

30 

30 

30 

30

30 

30 

30

30 

30

35 

52 

55 

56 

43

Dec.

31

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

SO

30 

30 

30 

30 

29

29 

29 

29 

29 

29 

29

Jan.

29 

29 

29 

29 

29

29 

29 

29 

29 

29

29 

29 

29 

29 

29

29 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28 

28

Feb.

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

36 

45

45 

45 

45 

45

Month

Oeto 

Nove 

Deee

Ca

janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194"

ter year 1947-48 .......................

Mar.

50 

64 

65 

65 

65

65 

65 

65 

65 

65

65 

65 

65 

65 

65

65 

65 

65 

65 

65

65 

65 

65 

85 

102

102 

102 

102 

102 

102 

109

Apr.

130 

130 

130 

130 

130

130 

130

130 

130 

130,

130 

130 

130 

130 

130

130 

118 

112 

112 

112

112 

112 

112 

112

112

112 

112 

112 

101 

87

Secondfoot-days

899 

1,217 

924

11,726

884 

905 

2,285 

3,618 

1,587 

4,247 

2,389 

1,278 

776

21,009

May

87 

87 

84 

84 

63

38 

37 

40

40 

40

40 

40 

40 

40 

40

40 

42 

42 

44 

45

47 

47 

44

40 

40

39 

39 

53 

69 

74 

82

Maximum

29 

62 

31

62

29 

45 

109 

130 

87 

146 

146 

53 

26

146

June

93 

104 

117 

137 

146

146 

146 

146 

146 

146

146 

146 

146 

146 

146

146 

146 

146 

146 

146

146 

146 

146 

146 

146

146 

146 

146

146 

146

July

146 

146 

146 

146 

146

137 

100 6£' 

48 

31

31 

39 

45 

45 

45

51 

56 

59

70 

71

71 

71 

71 

71 

71

71 

70 

70 

70 

70 

59

Minimum

29 

29 

29

28

28 

28 

50 

87 

37 

93 

31 

26 

25

25

Aug.

53 

53 

53 

53 

53

53 

53 

53 

53 

53

53

53 

53

51 

51

51 

43 

36 

36

30

27 

27 

27 

27 

27

26 

26 

26 

26 

26 

26

Mean

29.0 

40.6 

29.8

32.1

28.5 

31.2 

73.7 

121 

51.2 

142 

77.1 

41.2 

25.9

57.4

Sept.

26 

26 

26 

26 

26

26 

26 

26 

26 

25

25 

25 

25

26 

26

26 

26 

26 

26

26

26 

26 

26 

26

26

26 

26 

26 

26 

26

Runoff in 

acre-feet

1,780 

2,410 

1,830

23,250

1,750 

1,800 

4,530 

7,180 

3,150 

8,420 

4,740 

2,530 

1,540

41,660

f Computed on basis of partly estimated gage-height record. 

939922 O- 51 - 16
231! PEND OREILLK RIVER BftSIN

Flint Creek at Maxville, Mont.

Location.- Water-stage recorder, Int. 4G°28'00", long. 113°14"30", in NW-J- sec. 9, T. 8 

N., R. 13 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 1948. April 1939 to September 1941 at site 

half a mile upstream (records not equivalent).

Extremes.- Maximum discharge during year, 1,880 second-feet Apr. 17 (gage height, 5.87 

feet) , from rating curve extended above 600 second-feet by logarithmic plotting; 

minimum, 32 second-feet Jan. 26 (gage height, 1.54 feet).

1941-48: 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, 1945.

Remarks.- Records good except those for periods of ice effect, which are fair. Many 

diversions above and below station for irrigation. During irrigation serson flow is 

supplemented by water from East Fork Rock Creek which is diverted in sec. 5, T. 4 N., 

14 W., 500 feet below Rock Creek Dam, through a canal into Trout Creek, thence into 

Flint Creek. Some regulation by Georgetown Lake.

Discharge, In aecond-feet, water year October 1947 to September 1948

Day

1 

2 

3

4

5

6 

7 

8 

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 

90 

86 

82 

81

95 

98

1O8 

115 

105

109 

110 

105 

101 

99

97 

103 

95 

92 

90

113 

109 

100 

101 

98

96 

95 

93 

98 

95 

91

Nov.

89 

92 

100 

97 

95

93 

94 

102 

106 

105

106 

106 

106 

104 

97

98 

95 

96 

93

91

86 

82 

88 

94 

93

116 

119 

102 

98 

98

Dec.

99 

96 

90 

84 

82

86 

82 

81 

82 

80

80 

80 

80 

79 

*79

80 

82 

79 

79 

75

b75 

b75 

76

77 

75

72 

72 

74 

73 

b70 

b65

Jan.

b60 

b62 

b65 

b67 

69

80 

149 

163 

94 

81

74

68 

62 

bSO 

b60

b60 

b60 

63 

66 

67

70 

71 

67 

65 

58

40 

b35 

b35 

b36 

39 

42

Feb.

b40 

b40 

b4O 

b40 

b40

b40 

b42 

b45 

b42 

b40

b40 

b42 

b44 

b45 

51

54 

69 

67 

82 

*72

78 

72 

72 

74 

154

178 

147 

142 

115

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

1. ......................................

ter year 1947-48 .......................

Mar.

102 

b90 

b75 

67 

58

58 

74 

71 

b65 

b60

b68 

bSO 

b90 

b95 

100

94 

92 

92 

98 

103

112

105 

105 

*107 

112

116 

122 

139 

141 

134 

165

Apr.

237 

295 

248 

210 

182

174 

163 

151 

175 

200

188 

167 

170 

188 

314

740 

845 

725 

372 

360

383 

445 

402 

338 

308

260 

237 

235 

277 

308

Secondfoot -days

3,044 

2,941 

2,459

36,020

2,088 

2,007 

2,990 

9,297 

8,765 

13,648 

6,320 

3,403 

1,955

58,917

May

277 

233 

214 

208 

195

175 

198 

328 

313 

260

242 

221 

213 

228 

218

205 

221 

280 

310 

381

411 

404 

413 

346 

315

333 

314 

308 

347 

341 

312

Maximum

115 

119 

99

295

163 

178 

165 

845 

413 

808 

442 

163 

91

845

June

307 

349 

379 

764 

721

515 

464 

434 

395 

351

368 

520 

402 

363 

316

305 

359 

354 

325 

337

385 

808 

735 

668 

598

547 

463 

412 

369 

335

July

335 

442 

374 

333 

306

282 

248 

216 

181 

154

152 

158 

147 

144

132

141 

142

150 

187 

213

192 

181 

179 

179 

168

162 

159 

162 

172 

171 

158

Minimum

81 

82 

65

43

35 

40 

58 

151 

175 

305 

132 

57 

49

35

Aug.

154 

158 

163 

150 

144

138 

135 

132 

134 

134

133

128 

127 

126 

119

117 

112 

102 

100 

101

87 

82 

83 

83 

80

76 

67 

65 

58 

58 

57

Mean

98.2 

98.0 

7->,3

93.7

67.4 

6T.2 

9S.5 

310 

283 

455 

20), 

110 

6,5.2

161

Sept.

54 

49 

50 

52

50

54 

59 

62 

61 

58

57 

59 

58 

59

60

62 

65 

65 

66 

66

66 

66 

75 

71 

74

85 

82 

89 

90 

91

Runoff In 

acre-feet

6,040 

5,830 

4,880

71,440

4,140 

3,980 

5,930 

18,440 

17,390 

27,070 

12,540 

6,750 

3,880

116,900

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- Discharge computed from once-daily staff-gage readings Jan. 30 to Apr.
FEND OREILLE RIVER BASIN 233 

Flint Creek near Maxville, Mont.

Location.- Wire-weight gage, lat. 46°32', long. 113°14', in NE^ sec. 21, T. 9 N., R. 13

 wi, t,0 feet downstream from point of diversion of Allandale Canal and 4 miles north of 

Maxville.

Drainage area.- 324 square miles.

Records available.- April 1946 to September 1948 (irrigation seasons only).

Extremes.- Maximum discharge observed during period, 1,700 second-feet June 4 (gage height,

 BTSlTTeet), from rating curve extended above 140 second-feet by logarithmic plotting; 

minimum observed, 38 second-feet Sept. 3, 4 (gqge height, 1.29 feet).

1946-48: Maximum discharge observed, that of June 4, 1948; minimum observed, 32 

second-feet July 23-25, 1946; minimum gage height observed, 1.29 feet July 23, 24, 

1946, Sept. 3, 4, 1948.

Remarks.- Records fair. Gage read once daily. Many diversions above station

 for irrigation. During irrigation season flow is supplemented by water from East Fork 

Rock Creek which is diverted in sec. 5, T. 4 N., R. 14 W., 500 feet below East Foi*k 

ROC'K Creek Dam, through a canal into Trout Creek, thence into-Flint Creek. So-ne 

regulation by Georgetown Lake.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

t!36

Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc

Aprl 

May. 

June 

July 

Augu 

Sept

T

lendar year

ie period ....... .......................

Mar. Apr.

Secondfoot-days

7,514 

25,322 

9,477 

4,184 

1,533

-

May

996 

a850 

804

836 

844 

828 

796 

788 

772

Maximum

996 

1,700 

876 

261 

91

-

June

756 

956 

1,120 

1,700 

1,500

1,020 

748 

740

732 

732

748 

940 

710 

696 

674

654 

64O 

618 

584 

576

916 

1,120 

1,070 

1,000 

916

804 

748 

674 

640 

590

July

876 

7 1C 

660 

a590

512

441 

391 

353 

270 

218

279 

265 

218 

178 

163

181 

170 

185 

235 

239

248 

230 

213 

235 

213

205 

201 

193 

205 

201 

193

Minimum

772 

576 

163 

57 

38

-

Aug.

205 

243 

261 

239 

222

205 

201 

193 

185 

170

160 

149 

139 

132 

129

123 

114 

103 

97 

89

86 

83 

75 

89

as

80 

75 

70

63 

SI 

57

Mean

835 

844 

306 

135 

51.1

-

Sept.

50 

41 

38 

38 

41

41 

42 

41 

43 

44

44 

43 

44 

46 

48

50 

48 

46 

44 

48

-50

48 

55 

57

61

R3 

70 

75 

83 

91

Runoff in 

acre-feet

14,900 

50,230 

18,800 

8,300 

3,040

95,270

t Result of discharge measurement.

a No gage-height record; discharge interpolated.
PEND OREILLE RIVER BASIN

Flint Creek near Drummond, Mont.

Location.- Wire-weight gage, lat. 46°38', long. 113° 09' , in NW^NEij sec. 18, T. 10 N. , R. 

la W . , at county road bridge lij miles upstream from mouth and Z\ miles south of 

DruMnond.

Drainage area.- 492 square miles.

Records available.- May to September 1948.

Extremes.- Maximum discharge observed during period, 1,800 second-feet June 3 (gage 

height, 11.15 feet), from rating curve extended above 900 second-feet; minimum 

observed, 16 second-feet Sept. 6.

Remarks. Records good. Many diversions above station for irrigation. During irrigation 

season flow is supplemented by water from East Fork Rock Creek which is diverted in 

sec. 5, T. 4 N., R. 14 W., 500 feet below Rock Creek Dam, through a canal into Trout 

Creek, theme into Flint Creek. Some regulation by Georgetown Lake.

Discharge, in second-feet, water year October 1947 to September 1348

Day

1 

2 

3 

4

5

6 

7 

8 

9

10

11

12 

13 

14

15

16 

17 

18

13 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

tl?5

Nov. Dec. Jan. Feb.

t281

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May 

June 

July 

Augu 

Sept

Th

lendar year

; period ................................

Mar.

t!78

Apr.

Secondfoot-days

6,608 

28,656 

9,381 

4,357 

1,457

-

May

899

958 

1,050 

973 

958 

921 

849

Maximum

1,050 

1,800 

8OO 

301 

126

-

June

843 

951 

] , 800 

1,640 

1,250

1,060 

988 

899

1,020 

793

772 

800 

807 

842 

687

719 

752 

655 

620 

988

1,020 

1,640 

1,020 

1,070 

1,040

965 

907 

dSOO 

d700 

602

July

596 

800 

R99 

a600 

aSOO

442 

332 

311 

256 

224

247 

199 

166

157 

150

161 

157 

143 

322 

301

244

213 

207 

213 

224

230 

238 

235 

269 

250 

235

Minimum

849 

602 

143 

42 

16

-

Aug.

253 

281 

301 

288 

262

241 

235 

213 

188 

176

164 

154 

168 

150 

139

120 

100 

88 

84 

84

83 

78

67 

66 

62

60 

56 

55 

51 

48 

42

Mean

944

355 

303 

141 

48.6

-

Sept.

66 

36 

30 

20 

18

16 

18 

20 

26 

40

39 

35 

39 

40 

40

42 

41

40 

33 

38

40 

42 

53 

61

67

83 

91 

101

116

126

Runoff in 

acre-feet

13,110 

56,840 

18,610 

8,640 

2,890

100,100

t Result of discharge measurement.

a No gage-height record; discharge computed on basis of records for Flint Creek near Maxville.

d Doubtful gage-height record; discharge computed on basis of records for Flint Creek near Max
FEND OREILLE RIVER BASIN 2i 

Trout Creek above main canal, near Philipsburg, Mont.

Location.- Water-stage recorder, lat. 46°10 I 30", long. 113°24'20", in Nw£ sec. 19, T. 5 

W., K. 14 W., just above drop for main supply canal from East Fork Rock Creek and 12 

miles southwest of Philipsburg.

Drainage area.- 4.2 square miles.

Records available.- November 1945 to September 1948.

Extremes.- Maximum daily discharge during year, 45 second-feet Apr. 16; minimum daily, 

 3 second-feet Jan. 27-29.

1945-48: Maximum daily discharge, that of Apr. 16, 1948; minimum recorded. 0.3 

second-foot July 30, 1946 (gage height, 1.02 feet).

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. One small diversion above station.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.9 

.9 

.9 

.7

.2 

.2 

.4 

.2

.2

.4 

.2 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9 

.9

Nov.

4.9 

4.9 

5.2 

4.9 

4.9

4.9 

4.9 

4.9 

4.7 

4.9

4.9 

4.9 

4.9 

4.9 

4.9

5.2 

5.4 

5.2 

5.2 

4.9

b4.5 

b4 

4.9 

4.9 

5.2

5.9 

5.4 

5.2 

5.2 

5.2

Dec.

5.4 

5.4 

5.4 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

*5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.2

5.2

5.2 

4.9 

4.9 

4.1 

4.9

4.9 

4.9 

4.9 

4.9 

b4 

b4.5

Jan.

4.9 

4.9 

4.9 

4.9 

4.9

5.2 

7.2 

6.1 

5.4 

b5

b5 

b4.5 

b4.5 

.5 

.5

.5 

.5 

.5 

.5

.5

5

5.5 

5 

5 

4.5

3.5 

3 3 * 

3 

3.5 

4

Feb.

.5 

.5

.5 

.5

.5 

.5

.5

' .5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

1... ....................................

ter year 1947-48 .......................

Mar.

5 

5

5 

4.5 

4.5

5 

5 

5 

4 

4.5

5 

5 

5 

5

5.5

5 

4.5 

4.5 

4.5 

4.5

4.5 

5 

5

4.5 

h4.5

4.5 

4.5 

5.5

6 

5.5 

5

Apr.

6 

8 

10 

8.5 

7

6.5 

6 

6 

7 

8

7.5 

6.5 

7 

8 

20

45 

40 

30 

20

20

22 

25 

15 

13 

12

11

10 

11 

13 

12

Secondfoot -days

154.2 

149.9 

157.5

1,832.4

143.9 

130 

150.5 

421 

329.7 

372.7 

231.7 

185.9 

165.1

2,592.1

May

11 

10 

10 

10 

9

9 

11 

14 

13 

11

12 

12 

12 

13 

11

10 

10 

10 

13 

16

11 

11 

11 

10 

9.6

9.1 

8.5 

7.5 

8 

8 

9

Maximum

5.4 

5.9 

5.4

12

7.2 

7 

6 

45 

16 

20 

11 

6.6 

5.9

45

June

10 

11 

15 

2O 

18

17 

16 

15 

14 

12

13 

15 

14

12 

ll

11 

10 

10 

10 

10

11

12 

13 

12 

11

11

10 

10 

9.5 

9.2

July

11

10 

9.2 

8.9 

8.3

8.0 

8.0 

7.7 

7.7 

7.4

8.0 

7.4 

7.2 

7.2 

7.2

7.2 

6.9 

7.2 

7.7 

7.2

6.9 

6.6

6.6 

6.6 

6.6

6.4 

6.6 

6.6 

6.6 

6.4 

6.4

Minimum

4.7 

4 

4

2.2

3 

3.5 

4 

6 

7.5 

9.2 

6.4 

5.5 

5.4

3

Aug.

6.4 

6.6 

6.4 

6.4 

6.1

6.1

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

5.9

5.9 

5.9 

5.9 

5.9 

5.9

5.9 

5.9 

5.9 

5.9 

5.9

5.9 

5.9 

5.9 

5.5 

5.5 

5.5

M<*an

4.97 

5.OO 

5.08

5.02~1

4.64 

4.48 

4.85 

14.0 

10.6 

12.4 

7.47 

6.00 

5.50

7.08

Sept.

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.4 

5.4 

5.7 

5.4 

5.9

5.7 

5.4 

5.4 

5.4 

5.4

Runoff In 

acre-feet

3O6 

297

312

3,630

285 

258 

299 

835 

654 

739 

46O 

369 

327

5,140

Peak discharge (base, 10 sec.-ft.).- Apr. 16 (time unknown) about 45 sec.-ft.; May 14 (2 p.m.) 16 

sec.-ft.; May 20 (6 a.m.) 23 sec.-ft.; June 4 (time unknown) about 20 sec.-ft.; July 1 (3:3O p.m.) 15 

sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

h Computed from staff-gage reading.

Note.- No gage-height record Oct. 15-27, Dec. 7-12, Jan. 15 to Mar. 24, Mar. 26 to May 13, May 27 

to June 29, Aug. 29 to Sept. 20; discharge interpolated, or computed on basis of temperature records 

or records for nearby stations.
236 PEND OREILLE RIVER BASIN

Trout Creek near Southern Cross, Mont.

Location.- Water-stage recorder, lat. 46°17', long. 1I3°20', in NW^ sec. 15, T. 6 N., R. 

14 W. , a quarter of a mile upstream from mouth, 4| miles southwest of Philipsburg, 

and 6j miles northwest of .Southern Cross.

Drainage area.- 34.8 square miles.

Records available.- December 1945 to September 1948.

Extremes.- Maximum discharge during year, 331 second-feet Apr. 16 (gage height, 5.67 

feet) , from rating curve extended above 80 second-feet by logarithmic plotting; 

minimum, 8.3 second-feet Feb. 15 (gage height, 2.64 feet).

1945-48: Maximum discharge, that of Apr. 16, 1948; minimum, 8.0 second-feet 

Jan.26, 1947 (gage height, 2.61 feet).

Remarks.- Records good except those for Oct. 1 to Feb. 15 and those above 100 secondreet, which are fair. Many diversions above station. During irrigation season flow 

is supplemented by water from East Fork Rock Creek which is diverted in sec. 5, T. 4 

N., R. 14 W., 500 feet below Rock Creek Dam, through a canal into Trout Creek.

Discharge, In second-feet, water year October 1947 to September 19*8

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

44 

43

41 

40 

40

46 

41 

44 

39 

39

40 

38 

36 

36 

34

34 

34 

33 

31 

31

36

31 

32 

34

33

32

31 

31 

31 

30 

30

Nov.

30 

31 

31 

30 

29

28 

29 

30 

29 

28

28 

29 

2& 

28 

27

29 

27 

28 

27 

27

22 

20 

23 

26 

27

32 

28 

25 

25 

26

Dec.

26 

25 

25 

23 

22

S4 

23 

23 

23 

22

23 

23 

*23 

23

23

22 

24 

24 

23 

23

22 

22 

22 

23 

22

22 

21 

21 

21 

17 

18

Jan.

19 

18 

18 

19 

20

22 

46 

36 

22 

19

19 

19 

17 

18 

19

18 

18 

18 

18 

18

a20 

a22 

a21 

a 20 

a!8

b!4 

b!3 

bl3 

b!3 

b!4 

bis

Feb.

15 

blS 

bis 

blS 

blS

blS 

b!6 

b!6 

b!6 

blS

b!4 

blS 

b!6 

18 

16

17 

20 

18 

17 

 17

17 

17 

16 

16 

26

41 

22 

20 

18

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

18 

18 

18 

16 

17

18 

18 

18 

14 

16

18 

18 

18 

19 

23

21 

18 

18 

18 

18

18 

21 

20 

19 

19

19 

20 

28 

29 

25 

22

Apr.

23 

37 

45 

33 

27

26 

25 

25 

31 

33,

28 

26 

28 

33

114

181 

175 

123 

79 

80

84 

91 

64 

53 

49

44 

42 

45 

54 

52

Secondfoot-days

1,115 

823 

698

13,616

604 

514 

600 

1,750 

1,307 

2,065 

2,298 

1,428 

1,277

14,484

May

46 

41 

40 

41 

37

37 

47 

61 

54 

48

52 

51 

52 

56 

50

48 

46 

43 

49 

66

47 

43 

42 

37 

31

25 

22 

22 

25 

24 

24

Maximum

46 

32 

26

93

46 

41 

29 

181 

66 

117 

115 

60 

52

181

June

32 

33 

44 

58 

52

49 

47 

38 

35 

47

55 

54 

50 

48 

48

56 

61 

61 

65 

68

96 

110 

117 

109 

109

107 

103 

106 

103 

104

July

112 

115 

106 

102 

99

92 

87 

82 

74 

72

75 

73 

71 

69 

65

67 

57 

59 

68 

74

69 

68 

69 

66 

65

65 

56 

54 

56 

57 

56

Minimum

30 

20 

17

13

13 

14 

14 

23 

22 

32 

54 

30 

33

13

Aug.

56 

57 

57 

60 

56

55 

54 

52 

52 

52

52 

51 

52 

50 

48

47 

45 

45 

47 

44

41 

40 

41 

39 

36

32 

30 

34 

35 

34 

34

Ketn

36.0 

27.6 

22.5

37.3

19.5 

17.7 

19.4 

58.3 

42.2 

68.8 

74.1 

46.1 

42.6

39.6

Sept.

34 

33

41 

39 

38

41 

41 

42 

44 

43

42 

41 

41 

43 

42

44 

44 

45 

42 

43

42 

42 

44 

41 

45

46 

46 

48 

48 

52

Runoff In 

acre-feet

2,210 

1,640 

1,380

26,990

1,200 

1,020 

1,190 

3,470 

2,590 

4,100 

4,560 

2,830 

2,530

28,720

* Winter discharge measurement made on this day. 

a Ko gage-height record; discharge computed on basis of temperature records and re-.ords for Flint 

Creek at Maxville.

b Stage-discharge relation affected by ice.
PEND OREILLE RIVER BASIN 237

Boulder Creek at Maxville, Mont.

Location.- Water-stage recorder, lat. 46°28'30", long. 113°14'00", In SEv sec. 4, T. 8 

N. , K. 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 1948.

Extremes.- Maximum discharge during year, 763 second-feet June 3 (gage height, 4.24 

reet); minimum daily discharge, 12 second-feet Jan. 27-29.

1939-48: Maximum discharge, that of June 3, 1948; minimum, 4.6 second-feet Dec. 

26, 1942; minimum gage height, 0.92 foot Aug. 26, Sept. 15, 16, 1946.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wmcn are poor. Several diversions above station for irrigation.

Discharge, In second-feet, water year October 1947 to September 1948

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.

34 

31 

29 

28 

26

30 

33 

41 

49 

44

45 

41 

36 

38

37

36 

38 

36 

34 

33

38 

38 

36 

35 

33

33 

34 

36 

37 

37 

35

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

wa

Nov.

34 

36 

36 

35

31

32 

33 

34 

34 

33

33 

33 

33 

32 

33

32 

b32 

32 

31 

31

b29 

b28 

b29 

b30

30

33 

34 

33 

31 

31

Dec.

31 

31 

29 

b29 

b28

b28 

b28 

b27 

27 

26

26 

26 

26 

26 

26

b26 

26 

26 

26 

25

b25 

25 

24 

24 

24

24 

24 

24 

24 

b23 

b22

Jan.

b22 

b23 

24 

24 

24

24 

33 

34 

30 

b28

b26 

b24 

b23 

b22 

b21

b21 

b21 

b21 

b22 

b22

b23 

b24 

23 

23 

b20

b!3 

b!2 

12 

12 

13 

b!4

Feb.

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

14

15

16 

18 

b20 

21 

*h20

20 

h21 

22 

24 

30

28 

24

h20 

19

Month

lendar year 1947 

ary

ter year 1947-48 .......................

Mar.

19 

19 

18 

16 

15

15 

16 

16 

15 

14

14 

14 

15 

16 

16

17 

17 

18 

19 

h!9

20 

20 

20 

*20 

19

19

19 

20 

20 

20 

20

Apr.

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

21 

24

31 

40 

44 

41 

34

48 

61 

58 

51

46

43 

39 

41 

58 

74

Secondfoot-daya

1,111 

968 

806

19,774

678 

514 

545 

1,014 

7,041 

8,982 

2,837 

1,184 

565

26,245

Peak discharge (base, 150 sec. -ft.).- May 21 (12 p.m.)

May

67 

60 

57 

58 

54

57 

69 

81 

77 

70

70 

67 

75 

81 

78

85 

119 

196 

274 

378

483 

527 

436 

372 

410

447 

462 

525 

485

421 

400

Maximum

49 

36 

31

383

34 

30 

20 

74 

527 

642 

188 

77 

22

642

588 sec. -ft

June

404 

426 

620 

642 

511

432 

411 

376 

332 

309

326 

314 

250 

216 

190

197 

222 

196 

175 

167

224 

289 

277 

265 

248

226 

210 

190 

180 

157

Minimum

July

171 

188 

156 

142 

130

120 

113

105 

92 

88

95 

91 

82 

78 

73

75 

68 

67 

78 

86

75 

68 

66 

69 

62

58 

58 

69 

78 

73 

63

26 

28 

22

11

12 

14 

14 

20 

54 

157 

58 

22 

16

12

.; May 28

Aug.

68 

69 

77 

68 

62

54 

45 

44 

44 

42

40 

38 

37 

36 

33

32 

30 

29 

30 

31

29

27 

27 

27 

26

25 

24 

23 

23 

22 

22

Mean

35.8 

32.3 

26.0

54.2

21.9 

17.7 

17.6 

33.8 

227 

299 

91.5 

38.2 

18.8

71.7

3:30 a.m.)

Sept.

21 

21

20 

20 

20

20 

20 

19 

19 

18

18 

18 

18 

18 

17

17 

17 

17 

17 

17

16 

16 

18 

18 

20

22

22 

21 

20 

20

Runoff In 

acre-feet

2,200 

1,920 

1,600

39,220

1,340 

1,020 

1,080 

2,010 

13,970 

17,820 

5,630 

2,350 

1,120

52,060

556 sec.-

ft.; June 22 (4 a.m.) 311 sec.-ft.; July 1 (11 p.m.) 224 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

h Computed from staff-gage reading.

Note.- No gage-height record Jan. 28-30, Feb. 1-17, 19, 21, 23-27, 29, Mar. 1-19, 21-23, June 

discharge interpolated, or computed on basis of temperature records and records for Flint Creek 

Maxville.
238 FEND OREILLE RIVER BASIN

Middle Fork Rock Creek near Philipsburg, Mont.

Location.- Staff gage, lat. 46° 11', long. 113°30', in NE^ sec. 17, T. 5 N., R. 15 W., half 

a mile upstream from East Fork, 2^ miles upstream from West Fork, and 15 miles southwest 

of Philipsliurg.

Drainage area.- 123 square miles.

Records available.- September 1937 to September 1948.

Average discharge.- 10 years (1938-48), 115 second-feet.

Extremes.- Maximum discharge during year, 1,360 second-feet May 29 (gage height, 3.80 feet), 

by slope-area method; minimum observed, 9.2 second-feet Jan. 26, Mar. 10; minimum gage 

height observed, 0.24 foot Jan. 26.

1937-48: Maximum discharge, that of May 29, 1948; minimum discharge observed, 4.5 

second-feet Dec. 9, 10, 23, 24, 1944 (gage height, 0.02 foot).

Remarks.- Records fair. Gage read twice daily. A few small diversions above station for 

irrigation.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

67

67 

67 

67 

67

G7 

67 

67 

75 

71

71 

67

67 

67

71 

75 

75 

75 

73

75

71 

63

61 

61

59

59 

58 

*61

61 

61

Nov.

61 

65 

67 

59 

63

63

63 

63 

65

65 

65 

65 

59

63

58 

50 

56 

59 

52

b48

b47 

b48 

b50 

b52

b50 

47 

46 

46 

46

Dec.

48

47 

47 

42 

b42

b42 

b42 

b41 

b42 

43

43 

43 

*43

43 

36

33 

33 

36 

44 

47

43

47 

46 

47 

46

43

46 

46 

37 

28 

18

Jan.

32 

46 

40 

40 

39

50 

52 

46 

39 

b38

37 

34 

36 

37 

35

33 

b30 

27 

b35 

b40

44 

48 

54 

50 

42

9.2 

13 

12 

b!6 

b22 

b24

Feb.

b23 

20 

18 

b!7

16

13 

19 

b24 

b22 

b!9

b!6 

12 

b24 

b30 

b34

35

36 

36 

34 

*32

32 

32 

32 

34 

37

42 

48

40 

39

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

38

39 

31 

30 

28

28 

25 

29 

26 

9.2

12 

33 

33 

38 

33

29

35 

32 

32

32 

33 

33 

32 

33

36 

34 

35 

37 

37 

34

Apr.

34 

34 

37 

37 

35

34 

32 

34

36 

37

34 

33 

40 

42 

46

67 

63 

69 

73

111

125 

159 

151 

156

146

128 

125 

138 

170 

192

Secondfoot-days

2,080 

1 ,704 

1,284

57,142

1,100.2 

814 

978.2 

2,423 

18,334 

21,190 

7,356 

3,117 

1,604

61,984.4

May

184 

178 

175 

175 

164

170 

192 

200 

195 

198

200 

206 

239 

236 

242

268 

353 

517 

690 

985

,030 

,080 

,100 

,020 

997

,140 

,310 

,310

,330 

,150 

,100

Maximum

75 

67 

48

1,160

54 

46 

39 

192 

1,330 

1,240 

412 

164 

63

1,330

June

1,120 

1,130 

1,240 

1,230 

1,080

967 

985 

1,020 

925 

354

810 

832 

733 

57O 

503

494 

485 

480 

467 

433

467 

503 

550 

555 

541

522 

472 

429 

412 

376

July

388 

412 

406 

400 

388

353 

306 

275 

255 

249

246 

236 

233 

221 

209

206 

203 

198 

189 

178

178 

178 

170 

164 

162

156 

151 

154 

164 

164 

16Z

Aug.

164 

159 

154 

151 

143

128 

123 

118 

115 

115

111 

106 

106 

103 

101

99 

92 

88 

83 

83

83

79 

79 

75 

73

69

67 

63 

63 

61 

63

Sept.

63 

63 

59 

59 

59

56 

56 

53 

53 

53

53 

50 

50 

50 

50

50 

50 

47 

48 

50

50 

48 

47 

47 

47

50 

56

61 

63 

63

Minimum Mean Hunoff^ln

58 67.1 4,130 

46 56.8 3,380 

18 41.4 2,550

16 157 113,400

9.2 35.5 2,180 

12 28.1 1,610 

9.2 31.6 1,940 

32 80.8 4,810 

164 5?1 36,360 

376 706 42,030 

151 237 14,590 

61 101 6,180 

47 53.5 3,180

9.2 169 122,900

Peak discharge (base, 450 sec. -ft. .- May 29 (6:15 p.m.) 1,360 sec. -ft.; June 24 (6:30 p.m.) 560

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
PEND OREILLE RIVER BASIN 239

Blackfoot River near Helmville, Mont.

Location.- Water-stage recorder, lat. 46°56', long. 113°57', In N¥£sw£ sec. 25, T. 14 N.,

K. 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 1948. 

Extremes.- Maximum discharge during year, 3,180 second-feet June 6 (gage height, 7.55

feet); minimum dally, 100 second-feet Mar. 10.

1940-48: Maximum discharge, that of June 6, 1948; minimum, 66 second-feet Jan. 15,

1943; minimum gage height, 1.04 feet Nov. 9, 1945 (ice jam upstream). 

Remarks.- Records good except those for periods of Ice effect and 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

station.

Rating tables, water year 1947-48, except periods of Ice effec 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to June 6

1.1 102

1.3 126

1.5 158

1.8 221

2.3

3.0

3 5

4.0

356

590

795

1,030

5.0 1,560

6.0 2,150

7.5 3,140

June 7 to Sept. 30

1.6 167

2.0 264

2.5 414

?.0 590

Note.- Same as

preceding table 

above 3.0 feet. 

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

E7 

28 

29 

30 

31

Oct.

181 

183 

200 

192 

185

188 

192 

200 

210 

203

198 

196 

194 

190 

188

188 

190 

194 

194 

192

203 

207 

200 

196 

192

190 

188 

188 

185 

185 

181

Nov.

181 

183 

188 

185 

183

181 

183 

190 

188 

183

188 

183 

181 

181 

179

175 

175 

175 

173 

173

171 

168 

168 

169 

171

194 

203 

188 

181 

177

Dec.

175 

173 

171 

a!65 

alSO

a 165 

a 160 

a 155 

a!55 

alSO

alSO 

h!51 

a!55 

alSS 

a!55

a!45 

alSO 

a 155 

hlSl 

alSO

alSO 

*150 

150 

148 

148

146 

144 

144 

144 

b!40 

b!35

Jan.

b!40 

146 

141 

140 

138

138 

158 

173 

162 

b!55

blSO 

b!40 

b!35 

b!30 

b!30

b!30 

b!30 

b!30 

b!35 

b!35

136 

138 

136 

136 

b!25

bllO 

bllS 

b!20 

b!25 

a!30 

a 130

Feb.

a!25 

a 120 

a!20 

a!20 

alls

alls 

bllS 

a!20 

a!20 

alls

allO 

allO 

allO 

bllS 

b!20

b!25 

b!30 

b!40 

138 

129

126 

126 

125 

123 

123

130 

136 

130 

129

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Peak discharge (base, 650 sec. -ft.).- May

Mar.

126 

126 

b!20 

bllS 

bllS

b!20 

b!20 

bllS 

bllO 

alOO

a 105 

allO 

al!2 

allS 

alls

al!2 

al!2 

al!2 

allO 

allO

al!2 

114 

*118 

117 

117

116 

116 

121 

138 

146 

136

Apr.

134 

135 

155 

158 

151

146 

141 

136 

143 

155

156 

148 

143 

148 

194

259 

280 

272 

246 

238

241 

262 

341 

377 

389

380 

359 

341 

344 

396

Secondfoot-days

5,973 

5,418 

4,745

167,168

4,237 

3,560 

3,631 

6,968 

44,835 

53,290 

19,582 

9,942 

6,027

168,008

23 (8 a.m.)

May

498 

504 

484 

487 

484

477 

511 

681 

808 

769

739 

727 

735 

818 

921

916 

936 

1,170 

1,680 

2,170

2,450 

2,690 

2,900 

2,670 

2,420

2,440 

2,530 

2,600 

2,580 

2,510 

2,330

Maximum

210 

203 

175

2,740

173 

140 

146 

396 

2,900 

3,090 

1,080 

462 

230

3,090

June

2,210 

2,140 

2,150 

f2,660 

f3,010

f3,090 

2,820 

2,560 

2,350 

2,180

2,030 

1,880 

1,660 

1,520 

1,380

1,280 

1,300 

1,240 

1,150 

1,100

1,080 

1,160 

1,360 

1,600 

1,680

1,580 

1,470 

1,320 

1,210 

1,120

July

1,080 

1,070 

985 

926 

854

786 

739 

702 

664 

640

644 

672 

609 

579 

558

554 

536 

522 

550 

620

576 

525 

504 

500 

475

451

438 

451 

482 

462 

428

Minimum

181 

168 

135

130

110 

110 

100 

134 

477 

1,080 

428 

236 

185

100

2,920 sec. -ft.; June 6

Aug.

414 

462 

458 

428 

408

392 

379 

369 

360 

347

338 

332 

323 

314 

306

300 

289 

286 

286 

292

284 

275 

272 

270 

270

264 

256 

248 

243 

241 

236

Meal

193 

181 

153

458

137 

123 

117 

232 

1,440 

1,776 

632 

321 

201

459

(4 a.m.) 3

Sept.

230 

228 

223 

220 

218

218 

218 

216 

213 

211

206 

201 

199 

199 

194

191 

191 

191 

189 

189

187 

185 

191 

189 

191

189 

189 

189 

187 

185

Runoff In 

acre-feet

11,850 

10,750 

9,410

331,600

8,400 

7,060 

7,200 

13,820 

88,530 

105 , 700 

38,840 

19,720 

11,950

333,200

,180 sec.-

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of temperature records'and records for station 

near Ovando and near Bonner.

b Stage-discharge relation affected by ice.

f Computed from partly estimated gage-height record.

h Computed from ataff-gage reading.
240 FEND OREILLE RIVER BASIN

Blackfoot River near Ovando, Mont.

Location.- Water-stage recorder, lat. 47°01', long. 113°07', in SE^NW^- sec. 34, T. 15 N., 

R. 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 1948.

Extremes.- Maximum discharge during year, 8,200 second-feet May 22 (gage height, 6.84 

 feet); minimum daily, 230 second-feet Mar. 10.

1940-48: Maximum discharge, that of May 22, 1948; minimum, 149 second-feet Feb. 17, 

1941. 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, 

whicri are poor.

Rating tables, water year 1947-48, except periods of ice effec

(gage height, In feet, and discharge. In second-feet)

(Shifting-control method used Aug. B to Sept. 3o)

Oct. 1 to Mar. 22

1.8 217

2.0 270

2.2 348

2.4 453

2.6 580

2.7 650

2.1 298

2.3 380

2.6 545

Mar. 23 to Sept. 30

2.9 760

3.2 1,060

3.8 1,810

4.5 2,880

5.5 4,880

6.8 8,100

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

465 

471 

501 

507 

489

489 

495 

513 

567 

546

533 

513 

507 

501 

489

483 

489 

513 

526 

513

533 

567 

553 

533 

526

513 

507 

501 

501 

495 

489

Nov.

489 

501 

513 

520

513

507 

507 

533 

540 

520

520 

520 

507 

501 

483

471 

471 

477 

471 

459

431 

448 

465 

442 

448

477 

520 

489 

465 

448

Dec.

453 

448 

431

420 

409

414 

409 

398 

393 

383

388 

388 

393 

388 

393

373 

b400 

b390 

383 

378

378 

b375 

b370 

b365

b360

b350 

b345 

b345 

b340 

b330 

294

Jan.

b295 

b300 

b310 

b330 

344

368 

409 

560 

587 

453

442

b400 

b370 

b350 

b350

b350 

b355 

b360 

b360 

b365

b370 

378 

353 

340 

320

280 

280 

285 

290 

295 

300

Feb.

300 

295 

290 

285 

280

275 

275 

275 

280 

275

270 

270 

270 

280 

300

 320 

350 

360 

360 

350

34O 

335 

330 

335 

340

350 

370 

380

370

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

360 

330 

300 

285 

280

280 

285 

280

260 

230

235 

240 

250 

270

280

285 

285 

285 

285 

285

290 

3OO 

*328 

336 

349

328 

328 

436 

696 

823 

744

Apr.

604 

680 

850 

7 2O 

631

533 

474 

446 

480 

552

552 

474 

425 

468 

645

972 

,030 

,030 

,120 

,100

,070 

,100 

,160 

,180 

,160

,08O 

,000 

940 

972 

1,230

Secondfoot -days

15,828 

14,656 

11,884

424,131

11,149 

9,110 

10,548 

24,678 

116,230 

117,280 

41,395 

22,556 

13,691

409,005

May

1,360 

1,380 

1,340 

1,350 

1,350

1,360 

1,480 

1,920 

2,180 

2,130

2,090 

1,990 

1,980-

2,020 

2,O50

2,100 

2,300 

3,170 

4,350 

5,150

5,850 

7,890 

7,570 

7,000 

6,570

6,500 

6,630 

6,660 

6,600 

6,090 

5,830

Maximum

567 

540 

453

6,700

587 

380 

823 

1,230 

7,890 

6,990 

2,140 

1,020 

533

7,890

June

5,650 

5,370 

5,620 

6,870 

6,990

6-, 650 

6,260 

5,670 

5,220 

4,850

4,460 

4,040 

3,660 

3,350 

3.O8O

2,900 

2,870 

2,730 

2,560 

2,430

2,360 

2,440 

2,610 

2,880 

2,970

2,860 

2,730 

2,570 

2,390 

2,240

July

2,140 

2,100 

2,010 

1,920 l,o->o

1,690 

1,600 

1,520 

1,420 

1,340

1,310 

1,370 

1,310 

1,240 

1,190

1,170 

1,130 

1,100 

1,180 

1,310

1^280 

1,170

1,100

1,070 

1,030

983 

950 

961 

1,000 

1,020 

961

Minimum

465 

431

294

294

280 

270 

230 

425 

1,340 

2,240 

950 

539 

415

230

Aug.

940 

1,020 

1,020 

961 

920

890 

860 

832 

805 

778

769 

76O 

736 

720 

696

680 

666 

652 

638 

652

652 

631 

631 

617 

610

604 

590 

571 

558 

558 

539

K-?an

511 

489 

383

1,162

360 

314 

340 

823 

3,749 

3,909 

1,335 

^28 

456

1,118

Sept.

533 

527 

515 

509 

503

497 

491 

401 

485 

480

468 

458 

452 

452

446

441 

441 

441 

436 

430

430 

420 

420 

415 

415

420 

420 

420 

420 

415

Runoff In 

acre-feet

31,390 

29,070 

23,570

841,200

22,110 

18,070 

20,920 

48,950 

230,500 

232,600 

82,110 

44,740 

27,160

811,200

Peak discharge (base, 1,600 sec.-ft).- May 22 (lo a.m.) 8,200 sec.-ft.; June f (9 p.m.) to June 5 

(6 a.m.) 7,140 sec.-ft.

* Winter dischargejieasurement made on this day.

b stage-Discharge relation affected by Ice.

Note.- No gage-height record Jan. 24 to Mar. 22; discharge computed on basis of veather records 

\nd records for stations near Helmvllle and near Bonner.
FEND OREILLE RIVER BASIN 241

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 1948. July 1898 to October 19C5 at mouth, 

hall' a mile west of Bonner, records not equivalent.

Extremes.- Maximum discharge during year, 16,300 second-feet May 22 (gage height, 11.3

1'eet, from flooc'mark; minimum observed, 415 second-feet Mar. 10 (gage height, 1.00 foot).

1939-48: Maximum discharge, that of May 22, 1948; minimum daily discharge, 220 second-feet Jan. 19, 1940; minimum gage height observed, 0.47 foot Dec. 12, 1940.

Remarks.- Records good except those for periods of ice effect, which are poor. Gage read 

once daily. Many diversions above station for irrigation.

Rating table, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

2. 

2.6

415

510

666

955

1,340

6.0 

7.0

1,940

2,670

3,890

5,310

6,880

8.0

9.0

10.0

10.9

10,700

13,000

15,200

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

732 

750 

790 

778 

795

848 

854 

883 

907 

889

883 

871 

854 

848 

842

836 

866 

883 

907 

895

913 

907 

925 

925 

919

907 

895 

907 

901 

895 

895

Nov.

883 

883 

895 

901 

901

895 

907 

895 

877 

871

883 

895 

895 

889 

b880

b870 

b860 

b850 

b850 

b840

b820 

b800 

778 

790 

813

819 

836 

824 

813 

801

Dec.

795 

795 

778 

738 

738

755 

744 

744 

738 

732

732 

744 

738 

755 

744

727 

721 

710 

710 

»710

694 

699 

688 

b680 

b680

b670 

b650 

b650 

b630 

b600 

555

Jan.

560 

570 

591 

634 

655

699

895 

955 

1,150 

919

570 

b550 

b550 

b575 

b625

b650 

b650 

b650 

b675 

b700

b750 

784 

795 

795 

699

570 

500 

530 

570 

b600 

b620

Feb.

b620 

b600 

b580 

b540 

b500

b475 

bSOO 

b525 

b550 

b540

b525 

bSOO 

b525 

b575 

612

677 

721 

824 

778 

744

710 

721 

710 

704 

732

778 

813 

871 

889

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

871 

721 

602 

560 

545

550 

560 

540 

480 

415

420 

442

470 

510

550

570 

570 

581 

*586 

570

550 

581 

628 

644 

677

721 

767 

919 

1,180 

1,170 

1,150

Apr.

1,130 

1,150 

1,170 

1,200 

1,130

1,050 

1,000 

979 

967 

979

1,030 

1,060 

1,150 

1,200 

1,530

1,980 

2,200 

2,430 

2,850 

3,110

3,580 

3,810 

4,300 

4,220 

4,100

3,860 

3,550 

3,320 

3,450 

3,680

Secondfoot-days

26,900 

25,714 

22,044

765,851

21,036 

18,839 

20,100 

67,165 

255,730 

215,640 

65,080 

35,458 

22,662

796,368

May

3,920 

4,240 

4,020 

4,080 

3,920

3,890 

4,380 

6,110 

6,300 

5,980

5,920 

5,580 

5,68a 

5,760 

5,700

5,640 

5,890 

7,260 

9,060 

10,900

12,200 

15,200 

13,700 

13,000 

12,500

12,300 

12,600 

13,100 

13,000 

12,300 

11,600

Maximum

925 

907

795

12,800

1,150 

889 

1,180 

4,300 

15,200 

12,400 

3,320 

1,600 

866

15,200

June

11,200 

10,800 

11,000 

12,300 

12,400

11,600 

10,700 

10,100 

9,560 

9,100

8,580 

7,900 

7,260 

6,670 

6,300

6,050 

5,760 

5,460 

5,010 

4,750

4,470 

4,410 

4,520 

4,780 

4,660

4,470 

4,360 

4,080 

3,790 

3,600

July

3,320 

3,080 

3,050 

3,030 

2,870

2,670 

2,540 

2,430 

2,300 

2,240

2,140 

2,100 

2,060 

2,030 

1,960

1,850 

1,780 

1,720 

1,780 

2,020

1,940 

1,810 

1,760 

1,670 

1,600

1,550 

1,520 

1,520 

1,600 

1,560 

1,580

Minimum

732 

778 

555

555

500 

475 

415 

967 

3,890 

3,600 

1,520 

871 

677

415

Aug.

1,580 

1,600 

1,570 

1,530 

1,420

1,340 

1,300 

1,280 

1,260 

1,250

1,220 

1,180 

1,140 

1,130 

1,110

1,090 

1,060 

1,040 

1,030 

1,030

1,000 

991 

973 

967 

943

925 

925 

907 

901 

895 

871

Mean

868 

857 

711

2,098

679 

650 

648 

2,239 

8,249 

7,188 

2,099 

1,144 

755

2.176

Sept.

866 

866 

860 

854 

848

848 

836 

819 

813 

801

790 

767 

750 

732 

721

710 

710 

704 

699 

694

699 

699 

721 

716 

710

694 

688 

688 

682 

677

Runoff In 

acre-feet

53,360 

51,000 

43,720

1,519,000

41,720 

37,370 

39,870 

133,200 

507,200 

427,700 

129,100 

70,330 

44,950

1,580,000

Peak discharge (base, 2.500 sec.-ft.).- May 22 (about 10 a.m.) 16,300 sec.-ft. 

"2 p.m.) 12,600 sec.-ft.

 Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Jure 4 (about
242 PEND OREILLE RIVER BASIN

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. 

y w,, 2 miles upstream from Buffalo Creek and 3 miles west of Finn.

Drainage area.- 128 square miles.

Records available.- April 1939 to September 1948. May 1934 to February 1939 to site 3 

miles downstream.

Extremes.- Maximum discharge during year, 1,440 second-feet Apr. 16 (gage height, 6.04 

reetj, from rating curve extended above 350 second-feet; minimum not determined, 

occurred during period of ice effect or no gage-height record.

1939-48: Maximum discharge, that of Apr. 16, 1948; 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 period 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 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

14 

14

15 

16 

24 

21 

19

19 

19 

2« 

19 

19

19 

21 

20 

18 

18

26 

24 

22 

21 

2«

19 

19 

18 

18 

18 

18

Nov.

18 

18 

18 

18 

17

b!6 

18 

19 

19 

20

19 

19 

19 

19 

b!8

b!9 

20 

22 

22 

21

19 

21 

23 

25 

27

44 

39 

26 

25 

26

Dec.

29 

28 

25 

22 

26

28 

26 

b24 

b24 

b25

b26 

b26 

b27 

b27 

b24

b2« 

b21 

b22 

»b!7 

b!6

bis 

14 

14 

14 

14

14 

14 

14 

14 

13 

12

Jan.

10 

6

Feb.

6

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Bay.

June 

July 

Augu 

Sept

Wa

lendar year 1947

1............... ........................

St........................ ..............

ter year 1947-48 .......................

Mar.

7 

6 

5 

5 

5

5 

6 

5 

5 

5

5 

b6 

b6 

b7 

b7

b8 

b9 

9 

9 

9

blO 

1C 

blO 

blO 

blO

blO 

11 

b!2 

b!4 

b!5 

b!4

Apr.

b!3 

b!4 

b2« 

b!9 

b!8

b!7 

b!6 

b!6 

b!8 

b2«

b3« 

b5« 

b7« 

blO» 

b300

672 

462 

273 

2«2 

168

148 

153 

142 

114 

98

80 

70 

67 

78 

112

Secondfoot-days

583 

654 

635

14,318.5,

246 

174 

255 

3,560 

7,803 

4,493 

1,778 

968 

557

21,706

May

121 

108 

95 

99 

91

86 

117 

246 

272 

228

2«2 

157 

146 

159 

153

145 

170 

294 

444 

491

465 

532 

477 

381 

327

314 

208 

315 

320 

285 

255

Maximum

26 

44 

29

343

15 

672 

532 

284 

119 

46 

22

672

June

224 

194 

213 

273 

284

265 

218 

177 

150 

128

137 

146 

118 

105 

85

99 

163 

100 

89 

87

93 

95 

142 

145

148

170 

137 

117 

99 

92

July

119 

92 

78 

68

61 

58 

57 

54 

52

66 

65 

54 

49 

47

47 

44 

44 

64 

63

54 

47 

46 

48 

41

37 

38 

44 

55 

47 

39

Minimum

14 

16 

12

-

5 

13 

86 

85 

37 

22 

16

-

Aug.

38 

43 

46 

42 

42

39 

37 

36 

35 

34

34 

32 

32 

31 

30

28 

28 

26 

28 

29

28 

26 

26 

28 

27

26 

24 

24 

24 

23 

22

Mean

18.8 

21.8 

20.5

39.2

7.9 

6 

8.2 

119 

252 

150 

57.4 

31.2 

18.6

59.3

Sept.

22 

21 

20 

20 

20

20 

21 

20 

20 

19

18 

18 

17 

17 

17

17 

17 

17 

17 

17

16 

16 

19 

19 

20

19 

19 

18 

18 

18

Runoff in 

acre-feet

1,160 

1,300 

1,260

28,410

488 

345 

506 

7,060 

15,480 

8,910 

3,530 

1,920 

1,100

43,060

Peak discharge (base. ISO see.-ft.).- Apr. 16 (5:30 p.m.) 1,44O sec.-ft; May 8 (6:30 p.m.) 322 sec. 

ftTl May 11 11 a«tm.J 288 see.-ft.; May 22 (2 p.m.) 557 sec.-ft.; June 4 (11:30 a.m.) 295 sec.-ft.; 

June 11 (12 p.m7) 183 sec.-ft.; June 17 (4 a.m.) 2O4 sec.-ft.; June 26 (2 a.m.) 193 see.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 22 to Jan 13, Jan. 15 to Mar. 11, Mar. 18-2O, 22, 27 (fitagedisrmaTge relation affected by ice most of periods); discharge computed on basis of weather records.
PEND OREILtE RIVER BASIN 243

Nevada Creek near Helmvllle, Mont.

Location.- Wire-weight gage, lat. 46°49', long. 112°52', in SW^ sec. 4, T. 12 N., R. 10 

W., 'd miles below Nevada Creek Reservoir and 6 miles southeast of Helmvllle.

Drainage area.- 165 square miles.

Records available.- May 1946 to September 1948 (irrigation seasons only).

Extremes.- Maximum discharge during period May to September, 470 second-feet about May 22 

(gage height, 5.3 feet, from floodmark); minimum discharge 1 observed, 19 second-feet 

Sept. 8.

1946-48: Maximum discharge, that of May 22, 1948: minimum observed, 3.6 secondfeet Aug. 16-24, 1946.

Remarks.- Records fair except thofe for July 4-8 and those for periods of no gage-height 

record, which are poor. Gage read once daily during irrigation season. Flow regulated 

by Nevada Creek Reservoir (see p.230).Several diversions above station for irrigation.

Discharge, In second-feet, water year October 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. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflu

June 

July 

Augu 

Sept

Th

lendar year

.

e period. ...............................

Mar. Apr.

Secondfoot-days

3,918 

2,086 

1,107 

765

-

May

t372

Maximum

210 

103 

59 

32

-

June

a!90 

al70 

176 

210 

208

205 

200 

183 

155 

132

108 

116 

113 

110 

94

97 

103 

101 

93 

85

86 

94 

100 

107

116

113 

130 

114 

108 

101

Minimum

July Aug.

94 a56 

93 59 

103 a58 

e90 57 

e75 a50

e60 a40 

e55 a35 

e53 29 

52 a28 

52 27

89 a26 

98 26 

a75 26 

a65 30 

a60 32

a60 33 

57 33 

63 33 

67 33 

89 33

a7O 33 

a60 33 

a55 33 

a60 33 

a60 33

57 33 

a53 33 

50 33 

a60 33 

a57 33 

54 33

85 

50 

26

19

-

Me in

131 

67.3 

35.7 

25.5

-

Sept.

32 

32 

3? 

32 

32

32

26 

19 

25 

25

25 

25 

26 

26 

25

25 

25 

25 

25 

25

25 

25 

25 

a24 

a24

22 

a21 

a20 

a20 

a2o

Runoff In 

acre-feet

7,77O 

4,140 

2,200 

1,520

15,630

t Result of discharge measurement.

a No gage-height record; discharge computed on basis of records for Nevada Creek above reservoir 

near Finn.

e Stage-discharge relation uncertain; discharge computed on basis of records for station above re 

ervoir, near Finn.
244 PEND OREILLE RIVER BASIN

West Pork Bittei'root River near Conner, Mont.

Location.- Water-stage recorder, lat. 45°44', long. 114°17', In NE^NWv sec. 26, T. IS., R. 

22 W . , half a mile below West Pork Dam, 6 miles upstream from Nez Perce Creek, ,and 16 

miles southwest of Conner.

Drainage area.- 322 square miles.

Records available.- April 1941 to September 1948.

Extremes.- Maximum discharge during year, 3,880 second-feet May 29 (gage height, 6.08 feet); 

minimum , 30 second-feet Dec. 17-21 (gage height, 0.92 foot).

1941-48: Maximum discharge, 4,060 second-feet May 9, 1947 (gage heig'it, 6.18 feet); 

minimum, 0.2 second-foot Nov. 25, 1942.

e poor. 

mall diversions

minimum, 0.2 second-foot Nov. 25, 1942.

Remarks . - Records good except those for periods of no gage-height record, which ar 

Flow regulated by West Fork Bitterroot River Reservoir (see p. 230). Small dive 

above station for irrigation.

Rating table, water year 1947-48 (gage height, In feet,

and discharge. In second-feet) 

(Shifting-control method used Aug. 3 to Sept. 30)

0.9 28 1.7 185 3.6 1,170 

l.*0 40 2.0 288 4.2 1,690 

1.1 54 2.4 455 4.8 2,300 

1.3 88 2.8 655 5.4 2,990 

1.5 129 3.2 890 6.0 3,770

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

252 

252 

252 

252 

252

252

252 

252 

252 

252

252 

252

252 

252 

252

252 

158 

84 

84 

84

84 

84 

84 

84 

84

84 

84 

122 

256 

256 

256

Nov.

256 

256 

252 

252

252

252 

252 

252 

252 

252

252 

252 

252 

252 

249

249 

249 

249 

249 

249

249 

249 

249 

249 

249

249 

249 

249 

245 

245

Dec.

245 

245 

307 

355 

355

355

351 

351 

346 

346

346 

346 

342 

338 

338

334

160 

30 

30 

30

79 

134 

134 

134 

134

132 

132 

132 

132 

132 

129

Jan.

129 

129 

129 

103 

72

70 

62 

62 

62 

62

62 

62 

62 

a62 

a62

a62 

62 

62 

62 

62

62 

62 

62 

62 

62

60 

a60 

a61 

361 

a62 

a62

Feb.

62 

62 

a62 

a62 

a62

a62 

a62 

a62 

a62 

h62

a62 

a62 

a62 

a62 

a62

a62 

62 

62 

62 

62

62 

62 

62 

62 

60

67 

65 

64 

62

Month

Goto 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MR v

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

ter year 1947-48 .......................

Mar.

62 

62 

62 

62 

62

62 

62 

62 

62 

62

62 

62 

64 

64 

64

64 

64 

64 

64 

64

64 

64 

64 

64 

64

64 

64 

64 

65 

65 

65

Apr.

67 

68 

72 

72 

72

72 

72 

72 

74 

74

74 

75 

75 

77 

84

94 

101 

105 

109 

114

199 

274 

277 

277 

277

277 

281 

277 

277 

277

Secondfoot-days

5,920 

7,512 

6,954

142,849

2,176 

1,806 

1,963 

4,316 

48,333 

38,523 

9,502 

4,053 

4,397

135,455

May

281 

281 

281 

281 

281

281 

281 

281 

284 

288

296 

274 

699 

870 

916

988 

1,320 

1,970 

2,360 

2,940

3,020 

3,020 

2,770 

2,510 

2,540

2,840 

2,990 

3,190 

3,710 

3,390 

2,900

Maximum

256 

256 

355

3,900

129 

67 

65 

281 

3,710 

2,600 

536 

182 

263

3,710

June

2,590 

2,530 

2,600 

2,550 

2,230

2,000 

1,890 

1,840 

1,710 

1,550

1,400 

1,280 

1,140 

1,030 

964

910 

868 

790 

786 

751

768 

838 

819 

789 

760

721 

672 

622 

580 

545

July

536 

531 

502 

478 

442

406 

384 

367 

342 

330

326 

326 

299 

288 

277

263 

256 

256 

270 

277

256 

235 

221 

215 

202

192 

188 

202 

228 

215 

192

Aug.

179 

182 

182 

179 

167

155 

150 

142 

147 

155

152 

147 

137 

132 

125

118 

114 

109 

105 

116

116 

111 

111 

114 

114

105 

103 

100 

98 

96 

92

Minimum Mr an

84 191 

245 250 

30 224

30 331

60 70.2 

60 62.3 

62 63.3 

67 144 

274 1,559 

545 1,2^4 

188 307 

92 131 

75 147

30 370

Sept.

90 

86 

81 

79 

75

75 

77 

77 

79 

79

84 

84 

150 

155 

195

252 

263 

259 

252 

232

161 

164 

167 

167 

170

170 

170 

167 

167 

170

Runoff In 

acre-feet

11,740 

14,900 

13,790

283,300

4,320 

3,580 

3,890 

8,560 

95,870 

76,410 

18,850 

8,040 

8,720

268,700

a No gage-height record; discharge Interpolated, 

h Computed from staff-gage reading.
PEND OREILLE RIVER BASIN 245

Bitterroot River near Darby, Mont.

Location.- Water-stage recorder, lat. 45°59', long. 114°09 I , in NE£ sec. 36, T. 3 N., R. 

ai W., just below bridge on U. S. Highway 93, a quarter of a mile downstream from 

Chaffin Creek and 4 miles southeast of Darby.

Drainage area.- 1,050 square miles.

Records available.- April 1937 to September 1948.

Average discharge.- 11 years, 831 second-feet.

Extremes.- Maximum discharge during year, 11,300 second-feet May 29 (gage height, 8.12 

feet); minimum, 165 seccnd-feet Jan. 26 (gage height, 1.24 feet).

1937-48: 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 fair. Some regulation by West Fork Bitterroot River Reservoir (ses p. 230). 

Many diversions above station for irrigation.

Ratine tables, water year 1947-48, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 1 to Jan. 14,

Feb. 1, Feb. 14 to Mar. 8)

Oct. 1 to May 29 May 30 to Sept. 30

1.3 180 2.5 915 5.5 5,180 1.3 205 2.3 810 5.5 5,180 

1.5 245 3.0 1,420 7.0 8,480 1.5 275 3.0 1,510 7.0 8,480 

1.8 385 3.6 2,110 8.1 11,200 1.7 370 3.6 2,170 8,1 11,200 

2.1 580 4.4 3,240 1.9 495 4.4 3,260

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

464 

478 

748 

757 

596

604

620 

652 

708

636

628 

612 

580 

552

531

524 

510 

375 

3E5 

335

340 

345 

335 

320

315

h310 

a308 

305 

433 

471 

471

Nov.

464 

464 

a470 

3480 

a450

h421 

3450 

3480 

h478 

3480

3470 

3470 

3470 

3480 

a480

h471 

3460 

3480 

3500 

3480

3420 

a380 

h415 

3480 

3550

3650 

h816 

660 

573 

596

Dec.

588 

559

552 

612 

596

628 

580 

580 

580 

545

566 

545 

559 

552 

545

*510 

490 

660 

663 

644

573 

330 

315 

305

300

285 

285 

325

310 

261 

228

Jan.

285 

335 

315 

300 

249

261 

375 

415 

290 

242

290 

261 

220 

228 

269

249

265 

265 

273 

277

273 

277 

269 

265

245

186 

b!90 

b210 

b240 

b260 

b270

Feb.

257 

b240 

b230 

b230 

b220

b210 

b210 

b220 

b230 

b240

b240 

b240 

b240 

238 

228

224 

261 

330 

265 

249

242 

320 

281 

261 

*265

492 

490 

380 

335

Month

Ooto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

1............... ........................

ter year 1947-48 .......................

Mar.

305 

290 

273 

238 

242

261 

261 

253 

231 

207

234

261 

238 

238 

234

220 

228 

228 

224 

210

217 

242 

249 

234 

231

234 

238 

261 

295 

315 

285

Apr.

1,

1, 

1, 

1,

1, 

2, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot -days

15,218 

14,938 

15,076

459,251

8,349 

7,868 

7,677 

28,428 

159,020 

136,940 

38,797 

13,758 

8,791

454,860

Peak discharge (bsse, 2,500 sec. -ft.).- May 29 (ll a.m

281 

330 

403 

385 

370

340 

320 

310 

330 

370

355

335 

330 

350 

409

740 

280 

580 

330 

350

610 

690 

970 

750 

580

430 

310 

250 

520 

820

May

1,720 

1,550 

1,460 

1,460 

1,380

1,450 

1,900 

2,340 

2,160 

2,010

1,950 

1,870 

2,360 

2,920 

2,880

3,110 

3,760 

5,420 

6,630 

8,560

8,790 

9,290 

8,750 

7,880 

8,170

8,960 

9,340 

10,200 

11,000 

10,400 

9,350

Maximum

757

816 

668

11,000

415 

492 

315 

2,690 

11,000 

8,620 

2,240 

751 

394

11,000

June

8,460 

8,260 

8,620 

8,220 

7,090

6,690 

6,650 

6,610 

B.190 

5,650

5,310 

4,790 

4,420 

4,050 

3,660

3,580 

3,300 

2,920 

3,040 

2,870

2,990 

3,200 

2,930 

2,850 

2,760

2,630 

E,450 

2,330 

2,250 

2,170

July

2,240 

2,240 

2,030 

1,920 

1,800

1,690 

1,590 

1,500 

1,400 

1,330

1,440 

1,450 

1,280 

1,170 

1,100

1,040 

990 

990 

1,130 

1,180

1,110 

f980 

f882 

f855 

f802

725 

685 

725 

882 

882 

759

Aug.

709 

751 

709 

669 

608

548 

510 

488 

482 

488

482 

476 

462 

443 

424

400 

382 

360 

345 

370

365 

345 

335 

380 

360

340 

330 

320 

311 

298 

288

Minimum Mean

305 491 

380 498 

228 486

228 1,258

186 269 

210 271 

207 248 

281 948 

1,380 5,130 

2,170 4,565 

685 1,252 

288 444 

236 293

186 1,243

Sept.

280 

267 

255 

247 

243

239 

239 

235 

235 

235

232 

226 

235 

284 

280

340 

370 

360 

355 

350

298 

275 

280 

284 

311

382 

394 

365 

350 

345

Runoff In 

acre-feet

30,180 

29,630 

29,900

910,800

16,560 

15,610 

15,230 

56,390 

315,400 

271,600 

76,950 

27,290 

17,440

902,200

. ) 11,300 sec. -ft.

Winter dischsrge messurement made on this dsy. 

a No gsge-height record; dischsrge computed on bssis of westher records snd records for 

Bitterroot River at Conner snd West Fork Bitterroot River nesr Conner, 

b Stage-dischsrge relstion sffected by ice. 

f Computed from psrtly estimated gsge-height record. 

h Computed from stsff-gsge reading.
246 FEND OREILLE RIVER BASIN

East Fork Bitterroot 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 square miles.

Records available.- April 1937 to September 1948. September 1910 to Septembsr 1916 at site 

Vj miles upstream.

Average discharge.- 11 years, 236 second-feet.

Extremes- Maximum discharge during year, 3,760 second-feet May 29 (gage height, 5.70 feet); 

minimum discharge observed, 23 second-feet Nov. 22.

1937-48: Maximum discharge, that of May 29, 1948, maximum gage height, 5.78 feet May 

9, 1947; minimum discharge observed, 1.4 second-feet Aug. 17, 1937.

Remarks.- Records fair except those for periods of ice effect or no gage-height record,

which are poor. Gage read twice daily. Several diversions above station for irrigation.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

103 

111 

103 

94 

92

103 

108 

117 

146 

117

114 

136 

114 

103 

94

97

103 

100 

92 

92

94 

97 

94 

94 

94

92 

92 

92 

97 

97 

94

Nov.

94 

94 

94

100 

84

67 

94 

117 

108 

103

106 

97 

103 

108 

94

79 

74

111 

111 

89

72 

28 

86

111 

114

114 

143 

117 

111 

120

Dec.

120 

114 

108 

89 

79

84 

84 

92 

89 

89

84 

86 

97 

103 

*97

79 

106 

106 

94 

94

89

37 

100 

94 

86

67 

76 

108 

89 

64 

60

Jan.

70 

105 

100 

90 

70

80 

130 

143 

114 

60

103 

92 

62

54 

82

72 

80 

80 

85 

85

85 

85 

82 

80 

70

40 

43 

50 

65 

75 

a80

Feb.

75 

68 

S3 

63 

58

53 

53 

58 

63 

67

67 

67 

67 

65 

62

60 

75 

105 

90 

74

143

111 

76 

69 

*69

103 

130 

103 

79

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Vtt

lendar year 1947

ter year 1947-48 .......................

Mar.

79 

64 

69 

72 

76

84 

62 

69 

114 

62

69

76 

67 

72 

69

62 

69

34 

54

51

BO 

72 

76 

67 

67

64 

79

as

100

111

97

Apr.

94 

124 

149 

120 

124

108 

97 

106 

108 

133

114 

103 

103 

114 

140

311 

391 

475 

382 

399

441 

563 

514 

415 

395

358 

326 

307 

374 

600

Secondfoot-days

3,176 

2,943

2,824

137,449

2,522 

2,233 

2,293 

7,988 

53,13e 

41,930 

11,986 

5,151 

2,782

136,964

May

475 

449 

415 

424 

38o

420 

424 

492 

732

721

738 

755 

755 

778 

796

846 

1,020 

1,570 

2,170 

3,090

3,280

3,520 

3,340 

3,010 

3,100

3,340 

3,440 

3,550 

3,570 

2,950 

2,580

Maximum

146 

143 

120

3,510

14? 

143 

114 

6OO 

3,570 

2,640 

629 

290 

167

3,570

June

2,600 

2,620 

2,640 

2,540 

2,300

2,120 

2,120 

1,980 

1,703 

1,640

1,580 

1,530 

1,370 

1,290 

1,110

1,050 

981 

842 

883 

826

886 

980 

961 

937 

906

846 

784

7C3 

624 

58]

July

595 

629 

519 

a570 

521

485 

468 

459 

430 

425

425 

421 

333 

330 

343

341 

333 

326 

341 

349

337 

315 

290 

282 

265

262 

268

282 

290 

290 

279

Minimum

92

28 

60

28

40 

53 

51 

34 

386 

581 

262 

113 

48

28

Aug.

290 

286 

286 

262 

255

229 

139 

184 

186 

186

189 

184 

175 

178

140

135 

125 

118 

115 

128

120 

118 

113 

130 

125

122 

118 

115 

120 

115 

115

Mean

102 

98.1 

91.1

377

81.4 

77.0 

74.0 

266 

1,714 

1,3?8 

' 3P7 

166 

?2.7

3fO

Sept.

110 

106 

106 

106 

106

106 

106 

106 

106 

103

96 

89 

85 

78 

74

76

74 

62 

58 

56

52 

48 

52 

58 

83

120 

167 

135 

130 

128

Runoff In 

acre-feet

6,300 

5,840 

5,600

272,600

5,000 

4,430 

4,550 

15,840 

105,400 

83,170 

23,770 

10,220 

5,520

275,600

Peak discharge (base, 70O sec.-ft.).- May ?9 (10 a.m.) 3,760 sec.-ft. 

* Winter discharge measurement made on this day. 

a Ho gage-height record; discharge Interpolated, or computed on basis of records fcr Bitterroot 

River near Darby.

Hote.- Stage-discharge relation affected by Ice Jan. 1-7, Jan. 25 to Feb. 19.
FEND OREILLE RIVER BASIN 247

Rock Creek near Darby, Mont.

Location.- Wire-weight gage, lat. 46°04.' , long 114° 13', In SW£ sec. 28, T. 4 H., R. 21 W., 

5UO feet upstream from diversion dam, l^ miles downstream from Como Lake, and 4 miles 

northwest of Darby.

Drainage area.- 55.5 square miles.

Records available.- April 1946 to September 1948 (fragmentary).

Extremes - Maximum discharge observed during year, 1,500 second-feet May 27 (gage height, 

STTBTeet); minimum observed, 5.1 second-feet Dec. 16 (result of discharge measurement), 

but may have.been less during period of no record.

1946-48: Maximum discharge observed, that of May 27, 1948: no flow Apr. 6, 18, 19, 

May 27-30, 1946.

Remarks.- Records good except those for periods of doubtful or no gage-height record, 

 which are poor.. Gage read once dally. Plow regulated to limit of capacity of Como 

Lake (see p. 230). Small diversions above station for irrigation. Greater part of flow 

diverted by Rock Creek Canal, 500 feet below station.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

t36

Nov. Dec.

t5.1

Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Th

lendar year

e period ................................

Mar. Apr.

t66

Secondfoot-days

-

-

17,810 

21,175 

9,402 

7,100 

5,330

-

May

a66 

a66 

a66 

a66 

a66

a66 

al30 

a230 

a230 

a230

a230 

a230 

a23O 

a230 

a230

360 

372 

482 

812 

812

90O 

851 

862 

874 

939

1,080 

1,500 

1,430 

1,430 

1,430 

1,310

Maximum

-

-

1,500 

1,290 

351 

250 

210

-

June

1,100 

1,190 

1,270 

1,290 

1,220

1,220 

1,226 

1,080 

1,880 

1,080

824 

835 

835 

824 

789

778 

449 

205 

198 

198

192 

192 

284 

399 

457

457 

432 

359 

359 

359

July

320 

320 

328 

351 

351

343 

336 

328 

320 

320

313 

313 

320 

320 

320

320 

320 

306 

306 

306

291 

284 

284 

284 

284

264 

250 

250 

250 

250 

250

Aug.

256 

256 

250 

250 

250

250 

250 

250 

250 

250

250 

250 

200 

67 

148

250 

250 

250 

235 

235

235 

235 

235 

235 

235

215 

215 

215 

215 

215 

215

Minimum Mean

- -

-

66 575 

192 706 

250 303 

67 229 

135 178

-

Sept.

210 

205 

205 

200 

200

200 

2M 

200 

200 

195

195 

195 

195 

195 

190

190 

190 

185 

175 

175

165 

155 

145 

145 

145

135 

135 

135 

135 

135

Runoff In 

acre-feet

-

-

35,330 

42,000 

18,650 

14,080

10,570

120,600

t Result of discharge measurement . 

a No gage-height record; discharge computed on "basis of gate openings at outlet of Como Lake. 

Note.- Doubtful gage-height record July 23-25, 27 to Aug. 13, Aug. 16 to Sept. 16, Sept. 18-30;

discharge computed on "basis of records for Rock Creek Canal.

939922 O - 51 - 17
248 FEND OREILLE RIVER BASIN

Rock Creek Canal near Darby, Mont.

Location.- Staff gage, lat. 46°04', long. 114°13', In SW£ sec. 28, T. 4 N., R. 21 W., a 

quarter of a mile downstream from diversion dam, lj miles downstream from Como Lake, 

and 4 miles northwest of Darby.

Records available.- April to September 1946, May to September 1948.

Remarks.- Records good except those for periods of doubtful gage-height record, which are 

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 Hbrse 

Creek into canal below station near southwest corner of sec. 22.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

t30

Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

MAV

June 

July 

Augu 

Sept

The

Lendar year 

ary .

period .................................

Mar. Apr.

Secondfoot-days

3,696 

8,595 

6,835 

5,177

-

May

t!26

254

251

Maximum

262 

286 

246 

204

-

June

a251 

251 

262 

215 

158

136 

136 

134 

134 

0

0 

0 

0 

0 

93

124 

124 

124 

124 

118

116 

106 

103 

105 

105

105 

169 

167 

167 

169

July

Minimum

0 

246 

0 

130

-

2F6 

2F6 

2F6 

2F6 

2F6

2F6 

2F6 

2F6 

2F6 

2F6

2F6 

2F6 

2F6 

2F6 

2F6

f&6 

2P6 

2P3 

2F3 

2FO

283 

2FO 

280 

2FO 

2FO

254 

246 

2*6 

2*6 

2*6 

246

Aug.

<:46 

246 

246 

246 

246

246 

246 

246 

246 

246

246 

246 

195 

0

101

243 

243 

243 

230 

230

230 

230 

230 

230 

230

208 

208 

208 

208 

208 

208

Mean

123 

277 

220 

173

-

Sept.

204 

199 

199 

195 

195

195 

195 

195 

195 

190

190 

190 

190 

190 

185

185 

185 

180 

170 

170

160 

150 

140 

140 

140

130 

130 

130 

130 

130

Runoff in 

acre-feet

7,330 

17,050 

13,560 

10,270

46,210

t Result of discharge measurement, 

a No gage-height record; discharge Interpolated.

Note.- Doubtful gage-height record Sept. 4-16, 13-22, 24-30; discharge computed en basis of 2 discharge measurements and records for Rock Creek near Darby.
PEND OREILLE RIVER BASIN 249

Blodgett Creek near Corvallis, Mont.

Location.- Water-stage recorder, lat. 46°16', long. 114°13'. in NW^NW£ sec. 21, T. 6 N., 

K"nnr~W., 4| miles upstream from mouth and 7 miles southwest of Corvallis.

Drainage area.- 26.8 square miles.

Records available.- December 1946 to September 1948.

Extremes.- Maximum discharge during year, 812 second-feet May 28 (gage height, 6.33 feet); 

minimum, 4.0 second-feet Sept. 22 (gage height, 2.15 feet).

1946-48: Maximum discharge, that of May 28, 1948; minimum, that of Sept. 22, 1948.

Remarks.- Records good. No diversion above station. Plow only slightly affected by stor- 

 age ror irrigation in High Lake and Blodgett Lake.

Discharge, In second-feet, water year October 1947 to September

Day

1 

2 

3 

4

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23

24 

25

26 

27 

26 

29 

30 

31

Oct.

30 

36 

224 

101 

76

75 

71 

79 

75 

67

68 

62 

54 

49 

45

57 

86 

83 

79 

66

61 

57 

52 

48 

45

43 

41 

40 

38 

36 

35

Nov.

33 

32 

31 

30 

28

28 

28 

28 

27 

27

26 

25 

25 

25 

24

24 

23 

24 

23 

22

18 

21 

24 

23 

22

51 

72 

55 

49 

48

Dec.

50 

47 

44 

41 

39

38 

35 

34 

32 

31

30 

29 

28 

28 

27

27 

26 

25 

25 

25

23 

25 

23 

22 

22

21 

21 

21 

20

17 

19

Jan.

22 

20 

18 

19 

18

23 

77 

79 

59 

50

48 

41 

40 

42 

39

34 

39 

32 

32 

30

28 

27 

26 

25 

24

18 

26 

27 

27 

28 

25

Feb.

24 

22 

22 

20 

19

18 

19 

19 

16 

15

14 

14 

13 

12 

12

12 

14 

16 

14 

12

12 

14 

11 

11 

12

21 

22 

20 

- 18

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

17 

16 

15 

14 

16

14 

14 

14 

14

13

15 

14 

13 

13 

13

13 

12 

12 

12

12

12 

12 

12 

12

12

12

12 

14 

16 

17 

16

Apr.

17 

19 

22 

21 

21

19 

19 

18 

19 

20

19 

19 

19 

19 

29

57 

108 

131 

113 

124

156 

203 

172 

140 

120

103 

90 

85 

118 

148

Secondfoot-days

1,979 

916 

895

30,100.6

1,043 

468 

423 

2,168 

10,168 

10,050 

2,135 

968 

385.0

31,598.0

May

127 

111 

106 

113 

103

111 

176 

186 

156 

135

124 

120 

150 

166 

150

172 

255 

405 

493 

616

541 

616 

496 

423 

515

593 

646 

689 

688 

523 

463

Maximum

224 

72 

50

656

79 

24 

17 

203 

689 

663 

174 

60 

30

689

P-gak_ discharge (base. 35O sec. -ft. K- May 2O (4 a.m.) 706 sec. -ft.

June

465 

521 

663 

515 

439

460 

511 

523 

509 

456

461 

366 

380 

338 

298

308 

241 

203 

222 

243

262 

248 

200 

188 

178

168 

156 

170 

180 

178

July

170 

174 

137 

120 

117

104 

93 

82 

74 

71

70 

63 

59 

51 

48

44 

41 

43

bO 

60

57 

46 

41 

39 

33

30 

28 

34 

57 

53 

46

Minimum

30 

18 

17

8. 41

18 

11 

12 

17 

103 

156 

28 

20 

4.2

4.2

Aug.

50 

60 

57 

47 

42

38 

35 

31 

29 

28

27 

25 

24 

23 

40

37 

33 

21 

20 

27

27 

28 

28 

29 

26

25 

24 

23 

22 

21 

21

Mean

63.8 

30.5 

28.9

82.5

33.6 

18.1 

13.6 

72.3 

328 

335 

63.9 

31.2 

12.8

86.3

Sept.

30 

29 

27 

26 

25

24 

22 

21 

19 

18

16 

14 

11 

8.4 

7.7

6.5 

6.2 

5.6 

5.0 

4.6

4.4 

4.2 

4.4 

4.8 

5.9

8.4 

8.0 

6.5 

6.2 

6.2

Runoff In 

acre-feet

3,930 

1,820 

1,780

59,700

2,070 

928 

839 

4,300 

20,170 

19,930. 

4,230 

1,920 

764

62,680

; May 28 (3:3O a.m.) 812 sec. -ft.
250 PEND OREILLE RIVER BASIN

Fred Burr Creek near Victor, Mont.

Location.- Water-stage recorder, lat. 46°21', long. 114°15', in NW£ sec. 20, .T. 7 N., R. 

21 W., 5 miles upstream from mouth and 7 miles southwest of Victor.

Drainage area.- 18.6 square miles.

Records available.- December 1946 to September 1948.

Extremes.- Maximum discharge during year, 23,100 second-feet May 28, by slope-area method 

(failure of dam above station); minimum, 2.7 second-feet Sept. 20-22.

1946-48: Maximum discharge, that of May 28, 1948; minimum that of Sept. 20-22, 

1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion above station. Some regulation from reservoir of 

550 acre-feet capacity above station.

Cooperation.- Records for period July 30 to Sept. 30 furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1947 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.

15 

20 

122 

57 

42

41 

39 

46 

44 

39

38 

35 

32 

30 

27

34 

44 

48 

46 

38

35 

33 

29 

28 

a27

a26 

a24 

a23 

a2Z 

a21 

a20

Nov.

a!9 

a!9

a!7 

a!7 

a!6

a 15 

a 15 

a!7 

a!6 

a!5

a!5 

alS 

a 14 

a 13 

a!2

12 

16 

12 

12 

11

b8 

b9

blO 

blO 

11

46 

48 

39 

41 

39

Dec.

32 

29 

26 

25 

26

23 

a22 

a20 

a!9

a 18

a!7 

a!6 

15 

14 

14

b!3 

12 

*13 

13 

13

b!2 

b!2 

b!2 

a!2 

a!2

all 

all 

11 

10 

b9 

b8

Jan.

b8 

b9 

10 

9.7 

8.3

12

63 

51 

38 

35

26 

b25 

 b24 

b22 

b20

b!8 

b20 

b!8 

b!5 

bl5

b!6 

b!7 

b!6 

b!5 

b!2

blO 

alO 

alO 

alO 

all 

a!2

Feb.

all 

a 10 

a9 

a8

a7

a7

a8 

a8 

a8

7.7 

7.7 

7.7 

7.5 

7.5

7.5 

7.5 

7.9 

8.3 

7.9

8.1

8.1 

7.5 

7.5 

7.5

*10 

9.3 

9.0 

8.3

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year

Mar.

8.6 

8.3 

8.1 

b8 

b8

9.0 

8.1 

7.5

b7 

b7

b8 

10 

7.5 

7.5 

7.5

7.5 

7.3 

7.3 

7.3 

7.1

7.3 

7.5 

7.5 

7.3 

7.3

7.3 

7.3 

7.7 

9.3 

9.7 

9.7

Apr.

9.7 

10 

11 

12

Secondfoot-days

1,125 

559 

500

18,488.0

586.0 

235.5 

244.5

400.3 

109.7

-

May

t23,100

Maximum

122 

48 

32

333

63' 

11 

10

34 

5.2

-

June

t282

July Aug.

a33 

34 

26 

24 

20

17 

17 

a!6 

15 

14

13 

12 

11 

11 

10

11 

5.7 

9.4 

8.8 

9.4

8.6 

7. A 

7.4 

8. fa 

8.2

8.0 

6.8 

6.8 

5.9 

b.a 

5.4

Sept.

5.2 

5.2 

4.7 

4.5 

4.1

4.2 

4.5 

3.9 

3.9 

3.7

3.4 

3.4 

3.3 

3.0 

2.9

2.9 

2.8 

2.8 

2.8 

2.7

2.7 

2.7 

2.R 

2.9 

4.1

4.9 

4.5 

3.6 

a3.7 

3.9

Minimum Mean «^

15- 36.3 2,230 

8 18.6 1,110 

8 16.1 992

5.5 50.7 36,670

8 18.9 1,160 

7 8.12 467 

7 7.89 485

5.4 12.9 794 

2.7 3.66 218

.

* Winter discharge measurement made on this day. 

t Result of discharge measurement or slope-area determination, 

a No gage-height record; discharge Interpolated, or computed on basis of weather records and records for Bear Creek near Victor, 

b Stage-discharge relation affected by Ice. 

Note.- Discharge for period Apr. 4 to July 31 not computed; gage washed out by failure of dam above
FEND OREILKE RIVER BASIN 251

Bear Creek near Victor, Mont.

Location. - Water-stage recorder and timber control, lat. 46°23', long. 114°13', in NE-j 

sec. 9, T. 7 N., R. 21 W., & miles southwest of Victor.

Drainage area.- 26.6 square miles.

Records available.- April 1938 to September 1948.

Average discharge.- 10 years, 61.5 second-feet.

Extremes.- Maximum discharge during year, 1,100 second-feet May 27 (gage height, 3.80 

feet), from rating curve extended above 530 second-feet; minimum recorded, 2.0 secondfeet Sept. 25 (gage height, -0.30 foot), but may have been lower some time during 

period of no gage-height record Sept. 19-24.

1938-48: Maximum discharge, that of May 27, 1948; maximum gage height, 3.83 feet 

'May 8, 1947; minimum discharge recorded, 1.0 second-foot Sept. 13, Nov. 15, 1944.

Remarks.- Rppor-d.s go-^d except those for periods of ice effect or no gage-height record, 

which are fair. No diversion or regulation above station.

Revisions (water year).- W 982: 1942.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

42 

202 

107 

79

77 

77 

92 

85 

74

71 

63 

55 

48 

43

51 

68 

70 

66 

56

54 

50 

46 

42 

38

38 

37 

35 

33 

32 

30

Nov.

28 

28 

27 

25 

24

23 

23 

27 

26 

24

24 

23 

22 

21

20

20 

21 

19 

18 

18

b!5 

b!7 

b!9 

24 

22

90 

97 

71 

60 

55

Dec.

55 

50 

47 

43 

S9

37 

35 

34 

30 

28

27 

25 

25 

24 

24

b23 

22 

*21 

20 

19

tie 

bis

b!7 

16 

16

19 

23 

16 

16 

b!4 

b!5

Jan.

b!6 

19 

17 

16 

16

20 

85 

70 

55 

58

43 

b40 

b38 

b37

b30 

b33 

b28 

b27 

b28

b30 

b29 

b25 

21

20

b!5 

b!7 

b!8 

b!9 

b!9 

20

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

Juls 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

stry

ember .....................

ter year 1947-48 .........

Feb.

18 

17 

b!5 

b!3 

bio

b8 

b9 

blO 

b!2 

13

11 

11 

12 

11 

12

12 

13 

14 

13 

13

13 

14 

13 

13

13

*18 

18 

16 

16

Secondfoot-days

1,895 

931 

813

30,984.3

949 

381 

376 

1,955 

10,364 

10,553 

1,620 

600.2 

125.5

30,56*5.7

Peak discharge (base, 470 sec. -ft.).- May

ft.; June 3 (4 a.m.) 822 sec. -ft. i June 7 (9:

Mar.

14 

14 

14 

b!4 

b!4

15 

13 

12 

12 

14

16 

16 

12 

11 

11

10 

10 

10 

10 

10

10

11 

11 

11 

11

10 

10

11

13 

13

13

Maximum

202 

97 

55

732

85 

18 

16 

177 

812 

701 

158 

38 

8.4

812

Apr.

13 

14 

16 

16 

16

16 

16 

15 

16 

16

16 

16 

16 

16 

27

53 

98

124 

110 

117

138

177 

154 

128 

108

92 

80 

77 

111 

143

May

119 

100 

92 

92 

84

95 

139

143 

121 

105

101 

103 

130 

138 

125

149 

263 

4OO 

527 

561

a594 

a658 

a479 

a453 

585

660 

761 

812 

759 

525 

491

Minimum

30 

15 

14

4.7

15 

8 

10 

13 

84 

142 

27 

9.0 

2.0

2.Q

June

513 

579 

701 

545 

4.79

495 

570 

581 

552 

501

476 

410 

420 

348 

296

318 

314 

227 

2O8 

197

279 

261 

196 

174 

158

163 

150 

152 

148 

142

Mean

61.1 

31.0 

26.3

84.9

30.6 

13.1 

12.1 

65.2 

334 

352 

52.3

4.' 18

83.5

July

158 

121 

92 

81

77

69 

61 

55 

52 

50

48 

44 

41 

39

37

36 

35 

34 

35 

42

42

35 

32 

31 

29

28 

27 

34 

-61 

53 

41

Per 

square 

mile

2.30 

!989

3.19

1.15 

.492 

.455 

2.45 

12.6 

13.2 

1.97 

.729 

.157

3.14

21 (12 p.m.) 815 sec. -ft.; May 27 (12 

30 p.m.) 726 sec. -ft.

Aug.

35 

38 

37 

34 

30

28 

28 

26 

26 

25

23

21 

20 

19

18

16 

15 

14 

14 

13

13 

12 

12 

12 

11

11 

11 

10 

9.7 

9.5 

9.0

Sept.

8.4 

8.2 

7.9 

7.4 

6.7

6 0 

a5 7 

a5.5 

a5.2 

a5.0

14.8 

4.6 

4.2 

3.8 

3.5

sto

a2.? 

a2.6

a2.5 

a2.4 

a2.3

a2.1 

2.0

2.1 

2.4 

2.6 

2.8 

2.9

Runoff

Inches Acre-feet

2.65 3,760 

1.30 1,850 

1.14 1,620

43.35 61,460

1.33 1,880 

.55 756 

.52 746 

2.73 3,880 

14.53 20,560 

14.73 20,930 

2.27 3,210 

.84 1,190 

. 18 249

42.75 60,630

p.m.) 1,100 sec.-

Winter discharge measurement made on this day.

a Ho gage-height record; discharge interpolated or 

near Hnrvalli»

b Stage-discharge relation affected by ice.

computed on basis of records for Blodgett Creek
252 PEKD QREILLE RIVER BASIN

Burnt Pork Creek near Stevensville, Mont.

Location.- Staff gage, lat. 46°28', long. 113°57', in SW£ see. 11, T. 8 N., R. 19 W., 

at highway bridge 8 mile.s southeast of Stevensville.

Drainage area.- 74 square miles.

Records available.- May 1920 to August 1924, April 1938 to September 1948.

Average discharge.- 10 years (1938-48), 47.1 second-feet.

Extremes.- Maximum discharge observed during year, 565 second-feet May 28, 29; maximum 

gage height observed, 2.92 feet Jan. 17 (backwater from ice); minimum daily discharge, 

2 second-reet Mar. 11.

1920-24, 1938-48: 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, that of Manll, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair.. Gage read once daily except Sundays and holidays. Several diversions 

above station for irrigation.

Discharge, in second-feet, water year October 1947 to September 1946

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

15 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

30 

31

Oct.

28 

28 

28 

26 

a27

28 

28 

35 

35

30

50

a29

28 

28 

27

27 

50 

28 

a27 

23

30 

28 

28 

26 

24

a24 

24 

24 

26 

27 

25

Nov.

25 

a25 

25 

23 

23

23 

23 

26 

a24 

23

21

19 

19 

18 

27

a28 

b24 

28 

27 

b26

b24 

b23 

a24 

1)26 

29

32 

a 35 

b35 

b32 

a30

Dec.

29 

28 

28 

24

26

24 

a23 

b22 

30 

33

30 

30 

28 

a26 

24

b22 

b22 

*23 

24 

22

a21 

b20 

b21 

b23 

a23

b22 

b22 

a22 

b22 

b21 

b!9

Jan.

b20 

b22 

aZ4 

a25 

b24

35 

56 

43

40 

b38

836 

b30 

b26 

b24 

b25

b24 

b24 

a2 4 

b24 

b26

b27 

b28 

b28 

b26 

a20

b!4 

b!4 

b!5 

b!6 

b!7 

b!7

Feb.

a!6 

b!4 

b!3 

b!2 

bll

blO 

b!2 

al4 

b!5 

b!4

b!2 

blO 

b!2 

b!4 

a!6

b!8 

b22 

b24 

b23 

b22

20 

a20 

a!9 

19 

19

b24 

*b21 

18 

a!7

Month

Octo 

Move 

Dece

Ca

JLanu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194"

ter year 1947-48 ........................

Mar.

b!6 

b!6 

b!4 

b!2 

b!2

b!3 

a!3 

b!2 

b8 

b3

b2

b2.5 

2.8 

a5 

blO

b_12 

b!4 

bI5 

18 

20

a20 

19 

20 

20 

18

18 

18 

a!9 

20 

20 

 20

Apr.

20 

20 

24 

a23 

22

20 

20 

20 

22 

22

a22 

22 

20 

20 

28

43 

84 

a84 

83 

84

101 

119 

119 

101 

a90

84 

84 

78 

101 

160

Secondfoot-days

859 

766 

754

22,520

812 

481 

432 

1.74C 

9,177 

9,327

l.?21

776

.3

28,851.3

May

119 

allo 

101 

101 

94

101 

141 

188 

a!70 

160

160 

160 

188 

200 

188

a220 

253

346 

371 

502

458 

502 

a450 

414 

405

440 

458 

565 

565 

547 

a500

Maximum

35 

36 

33

414

56 

24 

20 

160 

565 

467 

150 

46 

34

565

June

449 

449 

458 

467 

440

427 

414 

414 

405 

380

363 

354 

a33O 

305 

282

260 

260 

226 

219 

a225

233 

282 

260 

246 

239

226 

a200 

182 

177 

155

July

150 

146 

136 

a!20 

alOO

94 

94

91 

91 

87

a85 

84 

84 

84 

78

78 

78 

71 

74 

71

66 

64 

60 

60 

a55

49 

46 

49 

60 

53 

46

Minimum

24

18 

19

13

14 

10 

2 

20 

94 

155 

46 

34 

21

2

Aug.

a46 

46 

45 

41 

41

40 

40 

a4O 

39 

39

36 

36 

35 

35 

aS8

41 

41 

41 

44 

44

41 

a40 

39 

45 

39

36 

36 

35 

a34 

34 

34

Mean

27.7 

25.5 

24.3

61.7

2S.2 

16.6 

14.0 

58.0 

296 

311 

80.8 

29.4 

25.9

78.8

Sept.

34 

34 

33 

30 

a30

a29 

29 

29 

29 

29

25 

a24 

23 

23 

25

25 

25 

25 

24 

24

23 

23 

23 

23 

23

a23 

23 

23 

22

21

Runoff In 

acre-feet

1,700 

1,520 

1,500

44,680

1,610 

954 

859 

3,450 

18,200 

18,500 

4^970 

2,420 

1,540

57,220

* Winter discharge measurement made on this day. 

a Mo gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by lee.
PEND OREILLE RIVER BASIN 253

Flathead River at Flathead, British Columbia 

{International gaging station)

Location.- Staff gage, lat. 49°00, long. 114°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.- MarcUx 1929 to* September 1948 (no winter records).

Extremes.- Maximum discharge during period, 14,600 second-feet May 23 (gage height, 9.1 

feet, from floodmark), from rating curve extended above 8,000 second-feet; minimum observed, 163 second-feet Apr. 3 (gage height, 1.08 feet).

1929-48: Maximum discharge, that of May 23, 1948; minimum observed, 63 second-feet 

Apr. 9, 1929; minimum gage height observed, 0.76 foot Apr. 9, 1929, Apr. 2, 3,, 1937.

Remarks.- Records good except those for period of no gage-height record, which are fair, 

uage read once daily. No regulation or diversion above station.

Cooperation.- This station is one of the1 international gaging stations maintained by 

uanaaa under agreement with the United States.

Revisions.- W 1092: 1333 (maximum gage height only).

Discharge, in second-feet, water year October 1947 to September 194B

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

395

385

420

580

810

778

762

714

650

690

650

650

636

636

666

1,190

1,960

1,820

3,190

4,650

2,780

2,310

2,070

1,820

1,370

1,290

1,190

1,130

1,180

1,270

1,190

Nov.

1,150

1,110

1,010

955

882

846

802

770

730

698

666-

6361 629"

594

568

544

532

520

520

515

510

500

490

470

460

450

440

435

430

430

-

Dec.

410

395

390

380

366

-

-

-

-

-

_

_

.

.

-

_

-

-

-

-

-

-

-

-

-

-

-

-

-

-

*

Jan.

Month

October .......................

November ......................

December 1-5. . .................

Calendar year .........

January .......................

February ......................

March ......................

April 3-30.... .................

May may ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year ..........

Feb.

Secondfoot-days

39,832

19,292

1,941

24,042

173,110

110,770

29 , 580

20,279

8,661

Mar.

Maximum

4.65C

1.15C

410

3.24C

14,600 

7.00C

1.68C

1 *362 38C

Apr.

-

-

163

166

166

170

174

174

170

170

166

163

170

178

202

380

510

636

714!

1,030'

1,500

1,840

1,890

1,760

1,680

1,580

1,370

1,400

2,280

3,240

-

May

2,720

2,140

1,840

1,860

1,790

1,730

1,840

1,840

1,850

1,860

1,730

1,790

1,880

1,890

1,890

1,900

32,320

32,900

36,560

39,090

39,090

311,000

314,600

314,500

311,500

311,300

311,700

312.000

all. 50CT

38,500

36,200

Minimum

385

430

366

163

1,730

1,700

592

366

252

June

a£, 300.

37,000

36,900

36,900

36,100

4,950

5,160

5,130

4,750

4,490

3,660

3,390

3,280

3,070

2,910

2,790

3,140

3,320

3,140

2,670

^,520

2,320

2,320

2,420

2,380

2,270

2,210

1,910

1,760

1,700

-

Mean

1,280

643

388

_

_

359

5,580

3,690

954

654

289

-

July

1,590

1,420

1,320

1,220

1,150

1,110

1,070

1,050

991

919

884

852

820

764

725

697

683

662

669

697

740

772

718

662

613

592

599

901

1,350

1,660

1,680

Per 

square 

mile

2.84

1.43

.86

1.91

12.40

8 20

2^12

1.45

.64

-

Aug.

1,

1,

1,

380

170

070

937

884

844

788

764

725

725

756

732

718

597

655

606

568

527

516

505

489

437

468

458

448

453

418

393

388

378

366

Sept.

362

350

338

338

338

330

322

314

306

306

298

291

291

285

278

272

272

265

265

265

265

258

258

258

258

358

258

258

252

252

Runoff

Inches

3.27

1.60

.16

1 »99

14.30

9 . 15

2 * 44

1 . 67

.71

-

Acre-feet

79,010

38,270

3,850

47,690

343,400

219, 700

58,670

40,220

17,180

-

a No gsge-height record; discharge computed on bssls of records for ststlon nesr Columbia Palls. 

Mont.

Note.- Figures of daily discharge May 1 to July 31 supersede those published in Wster-Supply Paper 

1080, "Floods of Msy-June 1948 in Columbls River Bssln. 1
254 PEND OREILLE RIVER BASIN

Flathead River near Columbia Falls, Mont.

Location.- Water-stage recorder, lat. 48°29', long. 114°05', in NWi sec. 7, T. 31 N., R. 

19 w., three-quarters of a mile upstream from Middle Pork and 10 miles northeast of 

Columbia Falls. Datum of gage is 3,109.70 feet above mean sea level, datum of 1929 

(levels by Bureau of Reclamation).

Drainage area.- 1,620 square miles.

Records available.- September 1910 to September 1917, April 1929 to Septenber 1948.

Average discharge.- 20 years (1910-17, 1935-48), 2,759 second-feet.

Extremes.- Maximum discharge during year, 26,400 second-feet May 24 (gage height, 11.84 

feet); minimum, 435 second-feet Mar. 11 (gage height, 1.60 feet).

1910-17, 1929-48: Maximum discharge, 29,500 second-feet June 20, 1916 (gage height, 

0 C Teet, site and datum then in use); minimum, 296 second-feet Mar. 5, 1945.

Remarks.- Records excellent except those for periods of ice effect, which are fair. No 

diversion or regulation..

Rating table, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

1.7

1.8 

2.2 

2.6 

3.0

470

510

720

1,000

1,340

3.5 

4.0 

4.5 

5.0 

6.0

1,840

2,400

3,060

3,830

5,690

7.0

8.0

9.5

11.6

8,040

10,900

16,400

25,400

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,380 

1,380 

1,430 

1,530 

1,630

1,840 

1,840 

1,730 

1,780 

1,840

1,900 

1,950 

J.,840 

1,780 

1,780

2,060 

3,440 

4,430 

4,890 

8,570

8,570 

7,040 

5,690 

4,890 

4,260

3,830 

3,510 

3,360 

3,280 

3,280 

3,210

Nov.

2,990 

2,850 

2,780 

2,720 

2,580

2,400 

2,340 

2,280 

2,170 

2,120

2,000 

1,950 

1,900 

1,900 

1,840

1,680 

1,530 

1,530 

1,530 

1,480

1,340 

1,200 

1,380 

1,380 

1,380

*1,340 

1,300 

1,200 

1,160 

1,080

Dec.

1,200 

1,120 

1,120 

1,160 

1,080

1,040 

992 

b975 

b950 

b930

940 

970 

978 

1,040 

985

940 

883 

962 

992 

970

904 

911 

904 

890 

876

869 

855 

848 

848 

841 

813

Jan.

714 

778 

862 

855 

848

820 

869 

940 

932 

883

834 

84X 

740 

b550 

b520

b525 

b550 

666 

*752 

778

772 

820 

848 

813 

740

580 

482 

590 

638 

632 

672

Feb.

666 

585 

510 

560 

550

524 

494 

585 

595 

b550

b525 

b540 

b600 

666 

696

690 

746 

841 

799

726

726 

759 

752

720 

714

759 

766 

740 

714

Month SecondMonth foot-days

Octc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 194" 

ary

sv:::::::::::::::::::::::: a

ember .....................

99,940 

55,330 

29,786

92,242

22,844 

19,098 

18,296 

86,770 

85,130 

39,080 

03,500 

72,480 

31.133

ter year 1947-48 .......... 1,263,387

Peak discharge (base, 10,500 sec. -ft.).- t

» Winter discharge measurement made on th 

b Stage-discharge relation affected by ice

Mar.

702 

696 

600 

550 

585

616 

660 

660 

595 

502

*490 

565 

590 

590 

585

580 

580 

575 

570 

555

560 

616 

610 

585 

555

550 

550 

570 

600 

638 

616

Maximum

8,570 

2,990 

1,200

23,000

940 

841 

702 

8,570 

25/300 

17,800 

5,690 

4,520 

1,430

25,300

Apr.

fi05_

632 

746 

733 

708

684 

654 

638 

638 

638

649 

649 

632 

638 

806

1,250 

2,180 

3,280 

3,920 

4,340

5,280 

6,570 

7,280 

7,040 

6,340

5,690 

4,890 

4,610 

5,480 

8,570

May

8,540 

7^180 

6,320 

6,360 

5,b80

5,650 

6,190 

6,920 

7,020 

6,410

5-, 9 00 

5,670 

6,010 

6,430 

6,140

6,100 

6,820 

9,190 

13,200 

16,500

17,000 

19,900 

25,300 

25,200 

22,200

22,000 

22,900 

23,800 

22,100 

19,300 

17,000

Minimum

1,380 

1,080 

813

350

482 

494 

490 

605 

5,650 

5,880 

2,180 

1,480 

827

482

June

17,200 

17,800 

17,800 

17,800 

17,000

15,900 

15,600 

15,700 

15,600 

14,400

12,700 

11,500 

10,600 

9^820 

9,560

9,050 

9,610 

10,100 

9,330 

8,420

7,990 

7,780 

7,880 

8,140 

8,220

7,760 

7,160 

6,620 

6,160 

5,880

Mean

3,224 

1,844 

961

3,540

737 

659 

590 

2,892 

12,420 

11,300 

3,339 

2,338 

1,038

3,452

July

5,690 

5,360 

4,9^0 

4,570 

4,260

4,000 

3,810 

3,730 

3,500 

3,300

3,lfO 

3,OfO 

2,8fO 

2,760 

2.7CO

2,640 

2,550 

2.4EO 

2,410 

2,690

2,780 

2,650 

2,520 

2,450 

2,350

2,250 

2,180 

2,550 

4,030 

4,480 

4,830

Per 

square 

mile

1.99 

1.14 

.593

2.19

.455

.407 

.364 

1.79 

7.67 

6.98 

2.06 

1.44 

.641

2.13

Aug.

4,520 

4,170 

3,830 

3,440 

3,210

2,990 

2,850 

2,720 

2,580 

2,460

2,520 

2,460 

2,400 

2,280 

2,170

2,120 

2,000 

1,950 

1,84Q 

1,840

1,780 

1,730 

1,680 

1,680 

1,680

1,680 

1,680 

1,630 

1,580 

1,530 

1,480

Sept.

1,430 

1,380 

1,340 

1,300 

1,250

1,200 

1,200 

1,160 

1,160 

1,120

1,080 

1,040 

1,040 

1,000 

992

970 

962 

955 

932 

918

897 

883 

883 

890 

890

869 

869 

855 

841 

827

Runoff

Inches

2.29

1.27 

.68

29.68

.52 

.44 

.42 

2.00 

8.84 

7.79 

2.38 

1.66 

.72

29.01

Ao re- feet

198,200 

109,700 

59,080

2,563,000

45,310 

37,880 

36,290 

172,100 

763,900 

672,600 

205,300 

143,800 

61,750

2,506,000

lay 24 (4 a.m.) 26,400 sec. -ft.

Is day.
FEND OREILLE RIVER BASIN 

Plathead River at Columbia Palls, Mont.

255

Location.- Water-stage recorder, lat . 48°22>, long. 114°11', in SW£ sec. 17, T. 30 N., R.

au W . , 200 feet downstream from highway bridge at Columbia Falls and 5 miles downstream from South Pork. 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 1923 (fragmentary), June 1928 to September 1948 

Average discharge.- 20 years (1928-48), 8,817 second-feet. 

Extremes.- Maximum discharge during year, 102,000 second-feet May 23 (gage height, 19.08

feet ) ; minimum daily, 1,500 second-feet Mar. 10, 11; minimum gage height, 1.10 feet

Feb. 4.

1922-23, 1928-48: Maximum discharge, that of May 23, 1948; minimum, 798 secondfeet 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 rating curve extended above 85,000 second-feet by logarithmic

plotting) . 

Remarks.- Records excellent except those for periods of ice effect and those for Sept.

3D, which are fair. No diversion. 

Revisions (water years) .- W 1092: 1923.

Rating tables, water year 1947-48, except periods of Ice effect

(gage height, In feet, and discharge In second-feet)

(Shifting-control method used July 6 to Aug. 8)

20-

Oct. 1 to Aug. 8 Aug. 9 to Sept. 30

1.3 1,760 4.0 6,620 10.0 31,lOO 1.3 1,980 

1.8 2,340 5.0 9,350 12. O 43,700 1.8 2,720 

2.2 2,940 6.5 14,500 15.0 66,500 2.2 3,370 

3.0 4,350 8.0 20,800 18.9 100,000 3.0 4,810 

3.5 5,820

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3,780 

3,690 

4,060 

4,770 

5,210

5,560 

5,560 

5,320 

5,670 

5,780

5,780 

5,670 

5,440 

5,210 

4,990

5,560 

8,220 

9,950 

12,000 

19,900

20,800 

17,700 

14,900 

13,400 

11,600

10,600 

9,650 

9,050 

8,460 

8,460 

8,180

Nov.

7,640 

7,380 

7,120 

6,870 

6,380

6,140 

5,900 

5,780 

5,560 

5,320

5,100 

4,990 

4,880 

4,770 

4,560

4,250 

4,060 

4,060 

3,960 

3,870

3,600 

3,260 

3,430 

3,600 

3,600

3,600 

3,870 

*3,690 

3,520 

3,340

Dec.

3,690 

3,520 

3,430 

3,430 

3,260

3,180 

3,100 

3,020 

2,940 

2,850

2,860 

2,860 

2,860 

2,940 

2,860

2,780 

2,630 

2,860 

2,940 

2,780

2,560 

2,560 

2,630 

2,560 

2,560

2,480 

2,410 

2,480 

2,480 

2,480 

2,410

Jan.

2,210 

2,560 

2,630 

2,480 

2,410

2,480 

3,000 

3,200 

3,200 

2,950

2,800 

'2,650 

2,500 

2,250 

2,000

2,000 

2,150 

2,350 

2,500 

2,600

2,750 

*2,820 

2,800 

2,650 

2,500

2,O40 

1,760 

1,870 

2,040 

2,050 

2,050

iSS

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

ber ....................... 2£

lendar year 194" 

ary

4,2£

h ......................... E

1 ......................... 3]

......................... 1.1E

.......................... 2£

st . . . . . if

ember .

Feb.

1,900 

1,750 

1,700 

1,700 

1,650

1,650 

1,650 

1,700 

1,750 

1,750

1,650 

1,650 

1,700 

1,800 

1,900

2,000 

2,100 

2,350 

2,250 

2,000

2,000 

2,050 

2,050 

2,000 

2,000

2,050 

2,100 

2,050 

2,000

ond-

-days

4,920 

4,100 

8,400

1,470

6,250 

4,900 

6,950 

1,040 

1,000 

0,600 

2,800 

5,760 

5,560

ter year 1947-48 .......... 4,132,280

Mar.

1,950 

1,900 

1,800 

±,700 

1,650

1,700 

1,700 

1,700 

1,650 

1,500

1,5OO 

1,650 

1,800 

1,950 

1,950

1.950 

1,950 

1,950 

1,950 

1,920

1,870 

1,980 

2,040 

1,920 

1,870

1,820 

1,820 

1,870 

1,920 

2,040 

1,980

Maximum

20,800 

7,640 

3,690

77,400

3,200 

2,350 

2,040 

28,900 

99,400 

72,500 

18,100 

9,350 

3,460

99,401)

Apr.

1,980 

2,040 

2,340 

2,340 

2,340

2,280 

2,210 

2,150 

2,150 

2,210

2,210 

2,210 

2,150 

2,090 

2,530

4,500 

8,810 

13,400 

16,500 

17,700

19,900 

25,200 

26,700 

24,700 

22,200

19,400 

16,900 

15,300 

17,700 

28,900

May

29,000 

24,200 

21,600 

21,400 

20,300

19,600 

21,600 

26,200 

27,200 

24,400

22,200 

20,800 

22,200 

24,800 

23,200

22,700 

25,800 

38,700 

55,300 

65,700

71,500 

89,000 

99,400 

84,100 

75,500

78,900 

83,900 

84,100 

75,400 

64,200 

58,100

Minimum

3,690 

3,260 

2,410

2,200

1,760 

1,650 

1,500 

1,980 

19,6OO 

19,000 

5,810 

3,540 

1,980

1,500

Peak discharge (base, 37,400 sec. -ft.).- May 23 (9 a.m.) 102,

June

61,200 

64,400 

66,500 

72,500 

66,100

58,900 

56,900 

57,400 

56,200 

50,600

44,200 

39,200 35,500' 

33,000 

31,900

30,600 

33,500 

33,500 

30,100 

27,000

25,900 

25,100 

25,000 

25,400 

25,300

23,600 

22,000 

20,500 

19,600 

19,000

Mean

8,546 

4,803 

2,852

11,760

2,460 

1,893 

1,837 

10,370 

45,840 

39,350 

9,445 

5,347 

2,519

11,590

July

18,100 

16,800 

15,400 

14,100 

13,200

12,600 

11,900 

11,200 

10,400 

9,740

9,230 

8,810 

8,350 

7,990 

7,690

7,430 

7,120 

6,900 

6,800 

7,380

7,640 

7,170 

6,820 

6,700 

6,400

6,020 

5,810 

6,450 

8,990 

9,680 

9,980

Per 

square 

mile

1.92 

1.08 

.642

2.65

.554 

.426 

.414 

2.34 

10.3 

8.86 

2.13 

1.20 

.567

2.54

Aug.

9,350 

8,750 

8,460 

7,910 

7,380

6,870 

6,620 

6,140 

5,820 

5,610

5,610 

5,400 

5,200 

5,200 

4,810

4,810 

4,720 

4,520 

4,340 

4,340

4,240 

4,060 

3,970 

3,880 

4,240

4,340 

4,150 

3,970 

3,800 

3,710 

3,540

Sept.

3,460 

3,37C 

3.28C 

3,120 

3,040

3,040 

2,960 

2,880 

2,800 

2,720

2,640 

2,570 

2,500 

2,500 

2,420

2,340 

2,340 

2,340 

2,270 

h2,120

h2,12Q 

h2,120 

h2,120 

h2,120 

h2,120

h2,120 

h2,120 

h2 , 050 

hi, 980 

hi, 980

Runoff

Inches

2.21 

1.20 

.74

35.97

.64 

.46 

.48 

2.61 

11.87 

9.88 

2.46 

1.38 

.63

34.56

Acre-feet

525,500 

285,800 

175,300

8,512,000

151,200 

108 > 900 

113,000 

616,900 

2,819,000 

2,342,000 

580,800 

328,800 

149,900

8,197,000

000 sec. -ft - Winter discharge measurement made on this day. 

h Computed from staff-gage readings. 

Note.- Stage-discharge relation affected by Ice Dec. 10, Jan. 7-25, Jan. 30 to Mar. 19.
256 PEMD OREILLE RIVER BASIN

Flathead Lake at Somers, Mont.

Location.- Water-stage recorder, lat. 48°04', long. 114°13', in NE£ sec. 26. T. 27 N., R.

 21 W., at steamboat dock at Somers. Datum of gage is at mean sea level (Somers datum).

Records available.- April 1922- to September 1948.

Extremes.- Maximum elevation during year, 2,896.01 feet June 6; minimum, 2,882.81 feet

1922-48: Maximum elevation, 2,896.26 feet June 19, 1933; minimum, 2,881.07 feet 

Dec. 5, 1936.

Remarks.- Since April 1938 lake elevation has been subject to regulation by Kerr Dam,.

 4 miles below outlet. Some diversion and regulation above Plathead Lake.

Elevation, In feet, water year October 1947 -to September 1948

Day

1

2

3

4

5

6

7

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.

92.70

92.72

92.72

92.74

92.71

92.76

92.62

92.66

92.66

92.67

92.66

92.87

92.66

92.84

92.83

92.68

92.90

92.92

92.96

93. 06

93.09

g92.90

92.70

92.50

92.34

92.21

92.14

92.13

92.17

92.20

92.22

HOT.

92.24

92.23

92.22

92.16

92.16

92.13

92.13

92. 07

92.07

91.97

91.69

91.80

91.71

91.59

91.46

91.36

91.29

91.19

91.16

91.07

91.04

91.00

90.97

90.99

30.99

90.96

90.93

90.92

90.88

90.86

-

Deo.

90.89

90.87

90.67

90.86

90.65

90.84

90.61

90.81

9O.75

90.70

90.62

90.55

90.51

90.40

90.34

9O.27

90.21

90.19

90.03

69.95

89.68

89. CO

69.72

89.64

 69.56

89.49

69.42

89.37

89.26

89.20

89.11

Jan.

89.06

69.03

86.86

gee.eo

gee. 67

gee. 70

g68.65

gee. 59

gee. 55

gee. 36

gee. 26

gee. is

gee. 19

g67.98

g87.90

g67.ei

g67.79

g87.72

g67.65

g67.56

g87.46

g87.41

g87.29

g87.05

g67.00

66.92

66.61

86.66

66.57

66.48

66.34

Feb.

66.22

86.15

86.04

65.39

85.77

85.66

85.55

85.49

85.29

85.22

85.12

85.03

84.97

84.94

84.87

84.77

84.69

84.59

84.51

84.44

84.38

84.34

84.26

84.21

84.15

84.15

84.06

83.98

83.93

-

Mar.

83.66

83.77

63.73

83.66

83 '.60

83.55

63.52

83.41

63.39

83.34

63.29

83.24

63.22

83.20

63.17

83.12

63.12

83.08

83.04

63.02

83.02

82.97

62.92

82.92

62.97

82.92

82.92

82.90

82.67

82.90

82.90

Apr.

82.87

82.66

82.67

82.87

82.64

82.89

62.86

62.84

62.85

82.69

82.66

82.87

62.87

62.90

82.68

82.91

63.02

83.19

63.39

83.61

63.86

64.20

84.57

64.96

85.27

65.44

85.60

65.71

85.87

66.07

-

May

86.36

66.57

86.78

86.87

66.97

87.03

67.21

87.39

87.54

67.66

87.76

67.81

67.87

67.96

88.00

68.03

68.10

68.26

68.69

89.29

69.93

90.69

91.56

92.39

93.01

93.50

94.00

94.52

94.99

95.30

95.43

June

95.47

g95.55

95.66

95.80

95.96

96.00

95.97

95.94

95.88

95.74

95.63

95.39

95.11

94.81

94.45

' 94.14

93.85

93.59

93.34

93.09

92.81

92.54

92.25

92.01

91.78

91.54

91.32

91.09

9O.9O

91.10

-

July

91.41

91.67

91.89

92.05

92.24

92.42

92.56

92.66

92.82

g92.94

g92.95

92.93

92.69

92.83

92.61

92.85

92.90

92.90

92.97

93.02

92.94

92.66

92.82

92.62

92.85

92.65

92.98

92.96

92.87

92.80

92.77

Aug.

92.91

92.96

92.95

93.00

92.99

92.96

92.94

92.94

92.94

92.93

92.91

92.92

92.89

92.90

92.88

92.91

92.94

92.96

93.01

92.94

92.69

92.89

92.91

92.93

92.90

92.89

92.69

92.86

92.89

92.91

92.91

Sept.

92.89

92.90

92.91

92.87

92.84

92.82

92.81

92.81

92.79

92.78

92.77

92.75

92.73

92.71

92.88

92.64

92.63

92.62

92.61

92.61

92.61

92.61

92.59

92.51

92.49

92.55

92.54

92.53

92.48

92.50

-

g Computed from graph based on twice-dally staff-gage readings. 

Note.- Add 2,800 feet to obtain elevation above mean sea level.

Monthly elevation and contents,'water year October 1947 to September 1948

Date

Oct. 31..................

Dec. 31. .................

Calendar year 1947. ....

Feb. 29..................

Mar. 31..................

July 31 ..................

Water year 1947-48 .....

Elevation 

(feet)t

o QQn Aft

2,869.11

-

O QQg Q7

-

Contents 

(acre-feet)*

1 526 000

1,308,000

-

-

Change In contents 

during month 

(acre-feet)

-218,000

-1O2.OOO

-21,000

t Sept. so, 1947, elevation Is average of dally means of last 2 days of 

September and first 2 days of October. All others at 12 p.m. 

* Contents above elevation 2,678 feet.
PEND OREILLE RIVER BASIN 257

Plathead River near Poison, Mont.

Location.- Water-stage recorder, lat. 47°41', long. 114°15', in NW£SE£i sec. 11, T. 22 N.,

R. ai W., half a mile downstream from Kerr Dam and 6 miles downstream from Poison. 

Drainage area.- 6,990 square miles. 

Hecoraa avaiiaole.- July 1907 to September 1948. 

Average aiacnarge.- 41 years,. 11j168 second-feet. 

Extremes.- Maximum discharge during year., 73,200 second-feet June 6 {gage height, 19.15

reet); minimum, 408 second-feet Aug. 1 (gage height, 0.13 foot); minimum dally, 1,560

second-feet Sept. 26.

1907-48: Maximum discharge, 82,100 second-feet May 29, 30, 1928 {gage height, 17.1

feet, site and datum then in use); minimum, probably less than 5 second-feet Apr. 13,

1938; minimum daily, 32 second-feet Apr. 12, 1938. 

Remarks.- Records excellent. Several small diversions from tributaries above Plathead

La tee. Plow regulated since April 1938 by P3athead Lake {see preceding page).

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.7 1,560 

2.0 1,830 

2.5 2,390 

3.0 3,100 

3.5 3,890

Discharge, in second-feet.

Day

1 

2 

3

4 

S

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.

4,580 

4,490 

4,490 

3,980 

4,400

4,490 

5,320 

5,900 

6,100 

6,500

7,560 

7,560 

7,560 

7,560 

7,560

6,920 

7,560 

7,340 

8,480 

13,000

16,200 

13,600 

14,200 

16,800 

19,300

17,900 

16,200 

11,000 

8,480 

8,240 

8,480

Nov.

8,970 

9,480 

9,220 

9,220 

9,220

9,220 

9,220 

9,480 

9,480 

11,400

12,900 

12,900 

12,600 

12,600 

12,600

12,300 

12,300 

10,600 

8,480 

8,480

8,480 

7,340 

6,500 

6,500 

6,500

6,500 

6,300 

6,500 

6,500 

6,300

Month

Ooto 

Hove 

Deoe

Cal

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wat

endar year 1947

ii&ry

h. ..............

ember. ...........

er year 1947-48

Dec.

6,500 

5,900 

5,510 

5,510 

5,510

5,320 

5,320 

5,320 

7,120 

8,480

8,480 

8,480 

8,240 

8,240 

8,240

8,240 

8,480 

8,970 

8,970 

8,970

8,720 

8,720 

8,720 

8,720 

8,240

8,480 

8,480 

8,010 

8., 240 

8,240 

8,720

Jan.

9,220 

9,220 

8,970 

8,720 

8,970

8,970 

8,970 

8,970 

10,800 

12,000

i.1,700 

9,740 

8,480 

8,480 

8,240

8,240 

8,240 

8,010 

8,970 

10,000

9,480 

9,740 

10,300 

10,800 

10,600

10,300 

10,000 

9,740 

9,480 

9,220 

9,220

4.0 4,760 10.0 22,000 

5.0 6,710 12.0 30,760 

6.0 8,970 14.0 40,700 

7.0 11,720 16.5 55,250 

8.0 14,820 19.1 72,800

water year October 1947 to September 1946

Feb.

9,220 

8,970 

8,720 

9,480 

a9,430

a9,380 

a9,320 

a9,270 

9,220 

8,970

8,720 

8,480 

8,240 

8,010 

7,780

7,560 

7,780 

7,130 

7,780 

8,010

8,240 

8,010 

8,010 

8,240 

8,240

8,010 

7,730 

7,78X3 

7,560

Observed

Discharge in 

second-feet

Maximum

19,300 

12,900 

8,970

54,800

12,000 

9,480 

7,340 

15,800 

69,500 

72,700 

16,200 

11,100 

4,760

72,700

Minimum

3,980 

6,300 

5,320

4,140

8,010 

7,130 

3,650 

3,430 

17,000 

12,500 

4,400 

3,780 

1,560

1,560

Mean

9,089 

9,270 

7,713

14,230

9,477 

8,391 

5,277 

6,976 

34,530 

58,170 

9,463 

6,823 

3,968

14,070

Mar.

7,340 

7,340 

7,130 

6,920 

6,710

6,500 

6,300 

6,500 

6,100 

5,510

5,700 

5,130 

4,760 

4,940 

5,130

5,130 

5,130 

4,760 

4,760 

4,760

4,580 

4,580 

4,230 

4,580 

4,760

4,320 

4,230 

3,650 

4,320 

3,810 

3,980

Runoff 

in 

ao re-feet

558,800 

551,600 

474,200

10^300,000

582,700 

482,700 

324,500 

415,100 

2,123,000 

3,461,000 

581,900 

419,500 

236,100

10,210,000

Apr.

4,230 

4,760 

4,760 

4,760 

4,140

4,580 

4,580 

4,580 

4,140 

4,060

4,060 

84,48X3 

a3,860 

a3,780 

a3,810

a3,6SO 

33,430 

34,350 

6,100 

7,020

6,920 

8,010 

9,220 

10,800 

12,000

13,200 

14,200 

14,800 

15,200 

15,800

May

17,000 

18,500 

19,300 

19,800 

20,700

21,000 

21,500 

22,400 

23,600 

24,300

24,700 

25,100 

25,100 

25,400 

26,200

26,500 

26,800 

27,400 

29,200 

31,600

34,600 

38,200 

42,500 

47,600 

52,200

55,500 

58,800 

62,200 

65,200 

67,900 

69,500

Change in

Flathead 

Lake 

(acre-feet)

-56,000 

-167,000 

-218,000

-102,000

-336,700 

-288,900 

-121,800 

+378,100 

+i, 161, 000 

-547,000 

+209,000 

+18,000 

-52,000

-21,000

June

70,200 

70,400 

70,900 

71,800 

72,400

72,700 

72,400 

71,500 

71,300 

71,000

69,600 

68,300 

66,600 

64,300 

62,200

59,800 

58,000 

56,400 

54,600 

52,700

51,200 

49,600 

48,200 

47,200 

45,700

44,800 

42,900 

41,000 

34,600 

12,500

July 1 Aug.

4,403| 3,780 

4,42'' 7,620 

5,05'' 11,100 

5,53'' 10,800 

5,92'' 10,000

6, 32'' 9,480 

6,63' 8,720 

6,84' 8,720 

4,83'' 8,720 

5,63' 8,970

9,38'' 8,720 

14,100 7,740 

14,70' 8,040 

14,600 7,020 

11,900 6,710

7,14f> 5,320 

6,790 5,130 

7, 78'' 5,130 

S.C*-"' 5,700 

12,700 6,300

15, 30" 6,300 

15,200 7,130 

13,400 5,900 

8,550 5,320 

6,840 4,760

6,960 4,760 

6,960 4,760 

10, SCO 4,760 

14,6C'> 4,760 

16,200 4,760 

15, SCO 4,580

Sept.

4,580 

4,580 

4,320 

4,580 

4,580

4,580 

4,580 

4,580 

4,580 

4,580

4,580 

4,580 

4,760 

4,760 

4,760

4,580 

3,960 

4,760 

2,090 

3,740

3,760 

3,590 

3,610 

3,640 

3,640

1,560 

2,950 

2,570 

2,720 

2,900

Adjusted for change in 

reservelr contents

Runoff 

in 

acre-feet

502,800 

384,600 

256,200

10,200,000

246,000 

193,800 

202,700 

793,200 

3,284,000 

2,914,000 

790,900 

437,500 

184,100

10,190,000

Discharge in 

second-feet

Me MI

8,177 

6,463 

4,167

14,090

4,001 

3,369 

3,297 

13,330 

53,410 

48,970 

12,860 

7,115 

3,094

14,040

Per 

square 

mile

Runoff

inches

___ .- Change in contents of Plathead Lake for October and for water year based en Sept. 30, 1947, 

elevation computed as average of mean elevations at Somers of last 2 days of September and first 

2 days of October; all others based on 12 p.m. elevations.

a No gage-height record} discharge interpolated, or computed on basis of power-pl^nt records at 

Kerr »am as furnished by Montana Power Co.
258 PEND OREILLE RIVER BASIN

Middle Fork Flathead River at Essex, Mont.

Location.- Water-stage recorder, lat. 48°16', long. 113°36', in SW£ sec. 14, T. 29 N., R. 

16 W., 0.6 mile upstream from Ole Creek, 0.7 mile southeast of Essex, and 4 miles 

downstream from Bear Creek.

Drainage area.- 517 square miles.

Records available.- October 1939 to September 1948.

Extremes.- Maximum discharge during year, 14,500 second-feet May 22 (gage height, 10.95 

feet, from partly estimated gage-height record); minimum daily, 110 second-feet Mar. 

10, 11.

1939-48: Maximum discharge, that of May 22, 1948; minimum, 17 second-feet Jan. 11, 

1941 (gage height, 1.30 feet, caused by ice jam upstream).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No regulation or diversion.

Ing table, water year 1947-48, except periods of loe effect 

(gage height, In feet, and discharge In second-feet) 

(Shifting-control method used Aug. 22 to Sept. 30)

2.1 

2.3 

2.5 

2.8 

3.2

132 

190 

254 

371 

5K5

3.6 

4.2 

4.8 

5.5 

6.5

795

1,240

1,790

2,620

4,130

7.5 5,940

9.0 9,200

10.7 13,800

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

251

261

333

375

393

406

393

393

411

411

402

389

375

358

350

380

438

505

890

1,590

1,420

1 , 190

1,030

859

795

718

664

616

582

560

525

Nov.

505

487

474

460

438

415

411

406

397

384

380

375

367

363

329

313

310

325

302

306

268

272

286

294

306

342

354

310

272

313

Dec.

363

317

310

298

294

286

279

254

265

261

258

*251

261

258

244

251

258

258

254

215

215

231

238

241

238

228

231

234

234

215

215

Jan.

224

247

234

221

215

251

358

358

a3GO

26S

290

276

265

*b200

blSO

b!60

b!60

b!70

b!90

b220

b240

279

265

247

228

a2io

b200

a!80

a!60

a!50

a!40

Month

October .......................

November ......................

December .................. ...

Calendar year 1947 .........

January .... ..................

February . .............. .....

Harch ................ ........

April ..... ...................

May ..................... .....

June ...... ............... ...

July ...................... ...

August ........ .... ..........

September .....................

Water year 1947-48 ..........

Feb.

a!40

a!40

a!40

a!40

*b!40

b!40

b!40

b!40

b!40

b!40

b!40

b!40

b!40

b!70

b200

b230

b250

b240

b200

b!70

b!70

b!60

b!60

b!60

b!60

b!60

b!60

b!60

b!70

_

-

Secondfoot-days

18,299

10,764

7,955

452,240

7,083

4,740

4,755

30,790

167,670

131,970

26,334

1»,358

5,998

426,716

Mar.

181

175

184

166

184

b!70

b!50

b!40

b!20

bllO

bllO

b!40

b!60

b!80

184

160

149

146

149

149

140

160

152

152

146

140

146

143

160

160

149

Maximum

1 *505 59^

363

10,700

358

250

184

3,110

13,600

8,870

1,730

500

228

13,600

Apr.

149

152

169

157

166

163

157 14'9

157

157

160

154

152

152

244

522

1,180

1,660

1,840

1,920

2,200

2,700

2,650

2,340

.2,010

1,670

1,430

1,320

1,800

3,110

May

2,790

2,290

2,060

2,12®

1,930

1,940

2,280

2,820

2,790

2,360

2,070

1,920

2,260

2,560

2,350

2,530

3,430

6,080

8,190

f8,820

f9,390

f 13, 600

12,000

9,020

9,020

9,730

10,300

9,460

7,980

6,740

6,840

Minimum

251

268

215

200

140

140

110

149

1,920

1,850

492

228

178

110

June

7,600

7,800

8.260

8,870

7,850

7,050

6,760

6,570

6,110

5,120

1,280

3,870

3,470

3,190

3,110

3,210

4,360

4,100

3,460

5,030

2,850

2,760

2,680

2,580

2,500

2,360

2,220

2,100

2,000

1,850

-

Mean

590

359

257

1,239

228

163

153

1,026

5,409

4,399

849

334

200

1,166

July

1,730

1,590

1,450

1,350

1,270

1,190

1,120

1,040

982

930

895

847

808

762

730

712

676

a680

a680

aSOO

640

594

566

550

525

505

492

540

588

577

515

Per

square 

mile

1.14

.694

.497

2.40

.441

.315

.296

1.98

10.5

8.51

1.64

.646

.387

2.26

Aug.

487 i

4

4

00

82

51

433

411

;

t02

93

80

371

358

;;

;

554

37

25

317

329

;

;

2

21

06

98

294

283

2

2

76

'65

65

268

258

2

2

2

2

47

44

41

34

228

Sept.

228

228

221

221

221

221

221

215

212

212

206

199

196

193

190

190

193

193

193

190

187

184

193

190

190

187

184

181

178

181

-

Runoff

Inches

1.31

.77

.57

32.52

.51

.34

.34

2.21

12.11

9.50

1.89

.74

.43

30.72

Acre-feet

36,300

21,350

15,780

896,900

14,050

9,400

9,430

61,070

332,600

261,800

52,230

20,540

11,900

846,400

Peak discharge (base, 4,400 sec.-ft.).- May 22 (8 p.m.) 14,500 sec.-ft.; June 4 (4 a.m.) 9,370 

sec.-ft.; June 17 (2 p.m.) 4,770 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 Belton.

b Stage-discharge relation affected by Ice.

f Computed from partly estimated gage-height record.
PEKD OREILLE RIVER BASIN 259

Middle Pork Plathead River near West Glacier, Mont. 

(Formerly published as Middle Fork Plathead River near Belton, Mont.)

Location.- Staff gage, lat. 48°29'50", long. 114°00'30", in NE^ sec. 34, T. 32 N., R. 19 

w., three-quarters of a mile downstream from McDonald Oeek, l£ miles west of West 

Glacier, and 3^ miles upstream from mouth.

Drainage area.- 1,140 square miles.

Records available.- October 1939 to September 1948. Prior to October 1947, published as 

Middle Fork fiathead River near Belton.

Extremes.- Maximum discharge during year, 32,600 second-feet May 23 (gage height, 12.40 

feet, from floodmark); minimum daily, 400 second-feet Mar. 11.

1939-48: Maximum discharge, that of May 23, 1948; minimum observed. 232 second-feet 

Jan. 21, 1940 (gage height, 1.08 feet).

Remarks.- Records fair. No regulation or diversion. Gage read once daily.

Discharge, in second-feet, water year Ootoberl947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,300 

1,300 

1,300 

1,360 

1,360

1,420 

1,420 

1,420 

1,420 

1,420

1,550 

1,620 

1,620 

1,680 

1,620

2,120 

2,280 

3,070 

5,700 

5,980

5,420 

4,590 

3,540 

3,540 

3,540

2,850 

2,650 

2,460 

a2,100 

al,750 

1,420

Nov.

1,420 

1,820 

1,900 

1,750 

1,420

1,420 

1,420 

1,480 

1,420 

1,360

1,300 

1,300 

1,360 

1,300 

1,300

1,240 

1,180 

1,180 

1,120 

1,020

870 

920 

970 

1,020 

 1,020

1,020 

1,020 

1,020 

1,020 

920

Dec.

870 

870 

870 

870 

870

bseo

b850 

b840 

b840 

b840

b840 

b860 

870 

870 

870

870 

b850 

b850 

870 

870

870 

870 

825 

825 

825

825 

825 

825 

825 

825 

780

Jan.

a74O 

a720 

a730 

740 

740

(3760 

(3780 

(3820 

(3820 

(3800

(3760 

740

b660 

b640 

b620

b620 

b600 

a580 

a560 

*b560

a570 

a580 

3600 

a590 

b580

b560 

b540 

b520 

b500 

b480 

b460

Month

Octo 

Move 

Dece

Ca

Janu 

Febi 

Hare 

Apri 

May 

June 

Julj 

Augu 

Sept

We

mbe r ......................

lendar year 1947 .........

Eiry

h .........................

ember .....................

ter year 1947-48 ..........

Feb.

b450 

b440 

b440 

b440 

b440

b440 

b440 

b440 

b440 

b440

b440 

b440 

b440 

b460 

480

515 

480 

620 

620 

550

515 

515 

515 

515 

515

515 

515 

515 

515

Secondfoot-days

74,820 

37,510 

26,320

1,205,210

19,970 

14,090 

13,845 

77,810 

413,460 

355,430 

29,400 

42,300 

20,475

1,188,430

Mar.

515 

480 

480 

450 

480

420 

a420 

 450 

a420 

a410

a 400 

a420 

a440 

a 440 

a 440

a440 

a 440 

3440 

3440 

a 450

a460 

a460 

a460 

3460 

a440

3420 

a420 

3440 

3460 

3470 

a 480

Maximum

5,980 

1,900 

870

20,800

820 

620 

515 

7,460 

31,800 

20,800 

5,920 

1,970 

920

31 , 800

Apr.

a490 

a 500 

a560 

a570 

a560

3540 

a530 

3530 

d540 

a540

(3530 

(J530 

(3560 

(3600 

(3750

(31,000 

(32,000 

(33,500 

4,320 

4,590

4,860 

5,700 

7,460 

6,560 

5,420

5,140 

4,590 

4,050 

4,590 

5,700

May

7,340 

6,440 

5,870 

5,760 

5,420

5,250 

5,730 

6,950 

7,400 

6,680

5,840 

5,560 

5,920 

6,890 

6,860

6,680 

7,670 

11,800 

16,400 

19,700

20,800 

26,200 

31,800 

26,200 

22,800

24,200 

25,200 

24,300 

21,900 

17,900 

16,000

Minimum

1,300 

870 

780

550

460 

440 

400 

490 

5,250 

6,100 

1,820 

920 

585

400

June

16,800 

18,300 

19,000 

20,800 

18,500

16,700 

16,500 

16,900 

16,700 

14 , 900

13,300 

11,500 

9,710 

9,300 

9,370

9,480 

10,900 

10 , 900 

9,880 

9,210

8,750 

8,760 

8,700 

8,360 

8,170

7,770 

7,220 

6,680 

6,270 

6,100

Mean

2,414 

1,250 

849

3,302

644 

486 

447 

2,594 

13,340 

11,850 

2,981 

1,365 

682

3,247

July

5,920 

5,670 

5,390 

5,030

4,560

4,270

4,020 

3,740 

3,490 

3,250

3,120 

2,890 

2,690 

2,500 

2,330

2,280 

2,260 

2,170 

2,120 

2,170

2,320 

2,170 

2,120 

2,020 

1,880

1,820 

1,820 

1,820 

2,150 

2,250 

2,120

Per 

square 

mile

2.12 

1.10 

.745

2.90

.565 

.426 

.392 

2.28 

11.7 

10.4 

2.61 

1.20 

.598

2.85

Aug.

1,970 

1,970 

1,820 

1,820 

1,820

1,750 

1,680 

1,550 

1,420 

1,420

1,420 

1,360 

1,300 

1,240 

1,240

1,240 

1,240 

1,180 

1,180 

1,180

1,180 

1,180 

1,120 

1,120 

1,180

1,240 

1,240 

1,180 

1,120 

1,020 

920

Sept.

920 

870 

870 

825 

780

780 

780 

740 

740 

740

700 

700 

660 

660 

620

620 

620 

620 

620 

620

620 

585 

585 

585 

585

585 

585 

620 

620 

620

Runoff

Inoh3s

2.44

1.23 

.86

39.28

.65 

.46 

.45 

2.54 

13.49 

11.60 

3.01 

1.38 

.67

38.78

Peak discharge (base, 8,700 sec. -ft.).- May 23 (4 p.m.) 32,600 sec. -ft.; June 4 (4 p.m

Acre feet

148,400 

74,400 

52,200

2,390,000

39,610 

27,950 

27,460 

154,300 

820,100 

705,000 

183,300 

83,900 

40,610

2,357,000

) 22,000

sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; dlschsrge Interpclsted, or computed on bssls of records fo- other Fisthead River stations.

t> Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed on basis of records for other Plathead River

stations.
260 FEND OREILLE RIVER BASIN

Bear Creek near Essex, Mont.

Location.- Water-stage recorder, lat. 48 0 16'50", long. 113°25'30", near south line of 

 sec. v, T. 29 N., R. 14 W., three-quarters of a mile downstream from Autunrn Creek 

and 85- miles northeast of Essex.

Drainage area.- 20.7 square miles.

Records available.- January 1946 to September 1948.

Extremes.- Maximum discharge during year,696 second-feet May 22 (gage height, 3.01 feet); 

_ minimum, 5.9 second-feet Mar. 24 (gage height, 0.30 foot), but may have been lower 

some time during period of ice effect.

1946-48: Maximum discharge, tnat of May 22, 1948; minimum, that of Mar. 24, 1948.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversions. Records collected in conjunction with Upper Columbia 

River Snow Laboratory.

Cooperation.- Gage-height record and 24 discharge measurements furnished by Corps of 

Engineers.

Discharge, in second-feet, water year October 1947 tc September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

18 

17 

19

18 

18 

17 

17 

17

16 

15 

15 

15 

14

17 

21 

32 

75 

76

56 

46 

41 

38 

36

32 

32 

30 

28 

27 

26

Nov.

25 

23 

22 

22 

2O

18 

18 

18 

18 

18

18 

17 

17 

17 

bl6

blS 

b!5 

blS 

b!4 

b!4

b!3 

b!3 

b!3 

b!3 

b!4

b!6 

b!6 

b!6 

b!6 

a!6

Dec.

 a!5 

a!4 

a!4 

a!4 

a!4

a!4 

a!3 

a!3 

a!3 

a!3

 13 

 12 

12 

12 

a!2

12 

12 

12 

12 

blZ

12 

12 

11 

11 

11

11 

11 

11 

bll »b9 

bll

Jan.

15 

15 

15 

15 

blS

blS 

blS 

b!4 

f!4 

b!3

b!3 

 613 

»b!2 

all 

alO

a9 

a8 

a8 

a8 

a9

a9 

alO 

alO 

a9 

aB

a7 

aid 

»a!8 

b!8 

b!8 

b!6

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apr! 

Hay 

June 

July 

Augu 

Sept

Ya

niber ......................

lendar year 1947 

ary

1 .........................

st ........................

ember .....................

ter year 1947-48 ..........

Feb.

a!4 

a!2 

alO 

»a9 

a9

a8 

a8 

a8

a 

a

a 

a 

a .5 

b7.5 

b8

b8 

b9 

»b9

a9 

a9

as. 5 

a8.5 

8.2 

7.8 

*b7.8

b7.8 

b7.8 

blO 

b7.8

Secondfoot-days

859 

507 

379

17,515.6

38O 

247.2 

217.4 

1,480.8 

6,316 

5,159 

1,043 

494 

334

17,416.4

Mar.

7.8 

b7.8 

b7.8 

b7 

b9

b9 

b7.8 

 7.8 

b7 

b6

b7 

b7.5 

b7.8 

7.8 

6.7

6.3 

6.3 

6. 

6. 6.

6. 

6. 

6. 

b6. 

b6. 3

b6.3 

6.3 

6.3 

b6.3 

6.3 

6.3

Haximun

76 

25 

15

467

16 

14 

9 

128 

519 

351 

65 

21 

12

519 ,

Apr.

6.3 

6.7 

b7 

»b7 

b7

5.7 

6.7 

b6.7 

6,7 

6.7

6.7 

6.3 

6.3 

7.O 

17

48 

92 

104 

96 

98

103 

118 

111 

97 

81

65 

59 

61 

109 

128

May

99 

88 

84 

83 

80

87 

103 

118 

1U6 

91

83 

84 

99 

95 

95

110 

164 

264 

309 

304

363 

519 

420 

314 

326

349 

368 

319 

281 

254 

257

Uinimun

14 

13 

9

7.0

7 

7 

6 

6.3 

80 

74 

21 

12 

10

6

June

267 

268 

3O8 

351 

290

245 

222 

201 

182 

160

155 

150 

132 

116 

114

165 

262 

214 

177 

ISO

133 

127 

118 

116 

109

99 

91 

84 

79 

74

Bean

27.7 

16.9 

12.2

48.0

12.3 

8.52 

7.01 

49.4 

204 

172 

33.6 

15.9 

11.1

47.6

July

65 

60 

57 

53 

f5O

44

43 

4O 

37 

37

35 

34 

31 

29 

29

29 

28 

28 

27 

28

26 

26 

25 

24 

22

21 

21 

24 

26 

23 

21

Per

square 

mile

1.34 

.816 

.589

2,32

.594 

.412 

.339 

2.39 

9.86 

8.31 

1.62 

.768 

.536

2.30

Aug.

21 

21 

19 

19 

19

18 

18 

18 

18 

18

16 

16 

16 

16 

16

16 

15 

14 

15 

15

15 

15 

14 

14 

14

14 

13 

13 

13 

13 

12

Sept.

12 

12 

12 

12 

12

12 

12 

12 

12 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

10 

10 

10 

10 

10

11 11 11 11 11

Runoff

Inches

1.54 

.91 

.68

31.53

.68 

.44

.39 

2.67 

11.37 

9.27 

1.87 

.89 

.60

31.31

Peak discharge (base, ISO see. -ft.).- May 22 (l:3O p.m.) 696 sec. -ft.; June 4 .(Z a.m.)

Ao re-feet

1,700 

1,010 

752

34,730

754 

490 

431 

2,940 

12,530 

10,230 

2.070 

980 

662

34,550

397

sec.-ft.j June 17 (5 a.m.) 308 sec.-ft.

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of 2 discharge measurements ard temperature 

records.

b Stage-discharge relation affected by ice.

f Computed .from"partly estimated gage-height record.
FEND OREILLE RIVER BASIN 261

Skyland Creek near Essex, Mont.

Location.- Water-stage recorder, lat. 48°17'30", long. 113°23'20", in NW£ sec. 9, T. 29 

 S. , R 14 W., 150 feet uostream from mouth and 10 miles nortneast of Essex.

Drainage area.- 8.09 square miles.

Records available.- January 1946 to September 1948.

Extremes.- Maximum discharge during year, 284 second-feet May 22; maximum gage height,- 

2"7T5~Teet_ June 4; minimum discharge, 2.5 second-feet Apr. 13, 14.

1946-48: Maximum discharge, that of May 22, 1948; maximum gage height, that of 

June 4, 1948; minimum discharge, 0.1 second-foot Nov. 15 (gage height, 0.12 foot, 

ice Jam upstream).

Remarks.- Records good except those for periods of ice effect or no gage-height record 

ana those for May 20-28, which are fair. No diversions. Records collected in conjunction with Upper Columbia River Snow Laboratory.

Cooperation.- Gage-height record and 24 discharge measurements furnished by Corps of 

Engineers.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

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 

8.4 

9.0 

8.4 

9.0

8.7 

8.4 

8.4 

8.4 

8.1

8.1 

7.8 

7.5 

7.5 

7.2

7.8 

8.1 

10 

f23 

23

17 

16 

15 

14 

14

13 

12 

f!2 

12 

11 

11

Nov.

11 

10 

10 

9.7 

9.7

9.3 

9.3 

9.3 

9.0 

a9

a9 

a8. 5 

a8.5 

as. 5 

a8

b7.5 

b7 

b6. 5 

b6 

bS.5

b5 

b5 

b5 

b5 

5.4

6.9 

6.6 

b6. 9 

h6.9 

6.9

Dec.

6.3 

6.1 

6.0 

6.0 

6.0

6.0 

5.7 

b5.7 

b5.7 

5.7

»5. 

5. 

5. 

5. 

5.

5. 

5. 

5. 

5. 

5.4

5.4 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

4.9 

 b2.7 

b3

Jan.

b4.9 

b4.9 

b4.9 

b4.9 

4.9

b4.9 

b4.9 

b4.9 

b4.9 

b4.4

b4.4 

 f4.4 *a7 

aS 

a5

a4 

a4 

a4 

a4.6 

a4.6

f4.6 

4.6 

4.6 

4.6 

b4

b3.5 

b4.5 

b6 

b6 

b6 

b5

Month

Ooto 

Hove 

Dece

Ce

Jam 

Febi 

Hare

HaT 

June 

Julj 

Augu 

Sept

W«

 bar ......................

lendar year 1947 

ary

1 .........................

ember .....................

ter year 1947-48 ..........

Feb.

b4.5 

b4 

b3.5 

«b3.5 

b3.5

b3

b3 

b3 

b3 

b3

b3 

b3 

b3.5 

b3.5 

b4

b4 

4.9 *4.4

4.6 

4.6

4,. 6

4.4 

4.1 

3.8

4.1

4.1 

3.8 

b3.8 

b3.8

Seoondfoot-days

341.9 

230.9 

165.9

6,708.8

149.9 

110.0 

104.2 

194.9 

2,218 

2,552 

536 

305.3 

212.5

7,121.5

Mar.

3.8 

3.5 

3.5

b3 

b4

b4.5 

b4

 3.8 

bS.5 

b3

b3.5 

b4 

b4 

b4 

b3.5

b3.2 

3.2 

3.2 

 3.2 

3.2

3.0 

3.0 

3.0 

3.0 

b3

3.0 

3.0 

3.0 

3.0 

2.8 

2.8

Maximum

23 

11 

-6.3

165

7 

4.9 

4.5 

17 

209 

185 

28 

12 

8.0

209

Apr.

2.6.

3.0 

3.2 

3.0 

3.0

2.6 

2.8 

2.8 

2.8 

2.8

2.8 

2.8 

2.5 

2.8 

4.4

6.4 

8'. 3 

7.2 

7.5 

8.1

10 

13 

12 

11 

11

9.7 

8.7 

8.7 

12 

17

May

14 

13 

13 

13 

12

13 

15 

20 

19 

17

15 

14 

15 

16 

16

19 

33 

62 

83 

92

113 

209 

176 

140 

172

199

197 

139 

116 

120 

123

Minimum

7.2 

5 

2.7

2.5

3.5 

3 

2.8 

2.5 

12 

30 

12 

8.0 

6.6

2.5

June

137 

142 

166 

185 

162

130 

114 

104 

99 

84

77 

73 

64 

56 

56

78 

131 

109 

87 

75

64 

56 

49 

45 

42

38 

35 

33 

31 

30

Mean

11.0 

7.70 

5.35

18.4

4.84 

3.79 

3.36 

6 '.50 

71.5 

85.1 

17.3 

9.85 

7.08

19.5

July Aug.

28 12 

27 _12 

26 12 

24 11 

22 11

22 11 

21 11 

20 11 

20 10 

19 10

19 10 

17 10 

17 10 

16 10 

16 9.7

16 9.7 

15 9.7 

15 9.7 

15 9.4 

15 9.4

14 9.4 

14 9.4 

13 9.0 

13 9.0 

13 9.0

13 9.0 

13 8.7 

14 8.4 

14 8.4 

13 8.4 

12 8.0

Per 

square 

mile

1.36 

.953 

.661

2.27

.598 

.468 

.415 

.803 

8.84 

10.5 

2.14 

1.22 

.875

2.41

Sept.

8.0 

8.0 

8.0 

8.0 

7 7

.7 

.7 

.7 

.7 

.3

.3 

.0 

6.6 

6.6 

6,6

6.6 

6.6 

6.6 

fr.6 

6.6

6.6 

6.6 

7.0 

6.6 

7.0

7.0 

7.0 

6.6 

6.6 

6.6

Runoff

Inches

1.56

1.06 

.76

30. 89

.69 

.50 

.48 

.90 

1T.19 

11.71 

2.47 

1.41 

.98

3?. 71

Peak discharge (base, 65 sec. -ft.).- Hay 22 (1 p.m.) 284 sec. -ft.; June 4 (12:30 a.m.)

Acre- feet

678 

458 

329

13,310

297

218 

207 

387 

4,400 

5,060 

1,060 

606 

421

14,120

201

sec.-ft.; June 17 (4 a.m.; 144 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for ?ear Cz-eek nervr Essex.

b" Stage-discharge relation affected by Ice.

f Computed from partly estimated gage-height record.
262 FEND OREILLE RIVER BASIN

South Pork Plathead River near Columbia Palls, Mont.

Location.- Water-stage recorder, lat. 48°22', long. 114°03', In NE£ sec. 17, T. 30 N., 

H. 19 W., 2 miles upstream from mouth and 9 miles east of Columbia Palls. Datum of 

gage is 3,031.3 feet above mean sea level, datum of 1929 (Corps of Engineers, bench 

mark).

Drainage area.- 1,640 square miles.

Kecords available.- September 1910 to September 1916, April 1923 to September 1948.

Average aischargeT- 19 years (1928-32, 1983-48), 3,118 second-feet.

Extremes.- Maximum discharge during year, 43,400 second-feet May 22 (gage height, 19.60 

reet, from floodmark); minimum daily, -450 second-feet Mar. 10.

1910-13, 1923-48: 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 or no gage-height record, 

which are fair.

Rating tables, water year 1947-48, except periods of Ice effect 

(gage height. In feet, and discharge, In second-feet)

Oct. 1 to May 22 May 23 to Sept. 30

1.8 

2.0 

2.5 

3.0

755

850

1,180

1,600

5.8 

7.0 

8.5

2,690

5,100

6,910

9,550

10.5

14.0

16.5

19.0

14,300

23,300

31,600

41,000

1.6 

1.8 

2.0 

2.5

510

665

775

1,100

3.0 1,520

4.0 2,610

5.8 5,100

Note.- Same as preceding 

table above 5-8 feet.

Discharge, in second-feet, water year October 1947 to September 19'<8

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,060 

1,100 

1,250

1,'sio

1,850

1,950 

1,950 

1,950 

2,110 

2,220

2,110 

2,000 

1,900 

1,800 

1,650

1,850 

2,220 

2,570 

3,710 

5,250

5,250 

4,540 

3,980 

3,580 

3,120

2,870 

2,630 

2,450 

2,390 

2,280 

2,220

Nov.

2,110 

2,000 

1,9OO 

1,85^ 

1,750

1,650

i.eoq

1,600 

1,600 

1,560

1,510 

1,460 

1,420 

1,420 

1,330

1,250 

1,250 

1,210 

1,210 

1,180

1,100 

1,100 

1,060 

1,140 

1,140

*1,210 

1,380 

1,380 

1,250 

1,250

Dec.

1,420 

1,300 

1,200 

1,100 

1,000

950 

950 

950 

900 

900

900 

950 

998 

998 

998

950 

950 

998 

998 

965

850

878 

905 

878 

850

800 

750 

800 

800 

800 

750

Jan.

650 

800 

905 

850 

825

850 

1,000 

1,200 

1,200 

' 1,100

1,000 

950 

900 

800 

750

750 

800 

900 

 1,100 

1,150

1,200 

1,250 

1,200 

1,100 

950

800 

700 

750 

800 825' 

850

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 194 

ary

1 .........................

ember .....................

ter year 1947-48 ..........

Feb.

825 

800 

750 

700 

650

600 

600 

625 

625 

600

550 

550 

575 

600 

700

750 

800 

850 

800 

700

700 

750 

750 

700 

700

725 

725 

700 

700

Secondfoot-days

77,320 

42,870 

29,436

1,618,086

28,905 

20,100 

19,650 

119,167 

562,250 

456,950 

93,560 

38,707 

19,126

1,508,041

Mar.

650 

600 

550 

525 

550

575 

600 

550 

500 

 450

500 

575 

650 

700 

675

650 

650 

625 

625 

600

600 

650 

700 

700 

675

675 

700 

750 

800 

800 

800

Maximum

5,250 

2,110 

1,420

34,000

1,250 

850 

800 

11,300 

40,800 

31,200 

6,160 

1,970 

805

40,800

Apr.

900 

1,000 

1,000 

950 

900

825 

800 

778 

755 

778

778 

778 

755 

755 

935

1,900 

3,980 

5,700 

6,450 

6,910

7,870 

9,980 

10,200 

8,950 

7,870

6,910 

6,000 

5,550 

6,910 

11,300

May

10,200 

8,450 

7,580 

7,760 

7,280

7,210 

8,350 

10,900 

11,100 

9,330

8,410 

7,900 

8,730 

9,910 

9,150

8,790 

10,600 

17,100 

24,100 

27,600

31,800 

g40,800 

g38,900 

g29,700 

28,500

30,900 

33,100 

33,200 

28,500 

23,800 

22,600

Minimum

1,060 

1,060 

750

750

650 

550 

450 

755 

7,210 

6,570 

1,720 

805 

540

450

June

24,400 

25,700 

27,100 

31,200 

27,100

23,900 

23,100 

23,300 

22,800 

20,900

18,700 

15,800 

14,000 

13,000 

12,400

11,800 

12,500 

11,600 

10,000 

9,010

8,720 

8,480 

8,670 

8,790 

8,520

7,840 

7,370 

6,960 

6,720 

6,570

Mean

2.494

1,429 

950

4,433

932

693 

634 

3,972 

18,140 

15,230 

3,018 

1,249 

638

4,120

July

6,160 

5,790 

5,280 

4,860 

4,540

4,250 

4,000 

3,770 

3,480 

3,290

3,110 

2,980 

2,780 

2,660 

2,540

2,410 

2,300 

2,200 

2,170 

2,470

2,390 

2,140 

2,000 

1,940 

1,860

1,750 

1,720 

1,910 

2,390 

2,300 

2,120

Per 

square 

mile

1.52 

.871 

.579

2.70

.568 

.423 

.38/7 

2.42 

11.1 

9.29 

1.84 

.'62 

.389

2.51

Aug.

1,970 

1,970 

1,970 

1,920 

1,770

1,670 

1,570 

1,480 

1,430 

1,340

1,340 

1,260 

1,220 

1,180 

1,140

1,100 

1,060 

1,060 

998 

998

998 

965 

932 

965 

1,030

998 

932 

900 

868 

868 

805

Sept.

805 

775 

748 

748 

748

720 

714 

709 

687 

676

660 

643 

632 

621 

605

600 

595 

595 

595 

580

h570 

h660 

h605 

h580 

h580

h570 

h560 

h555 

h550 

h540

Runoff

Inches

1.75 

.97 

.67

36.69

.65 

.46 

.45 

2.70 

12.80 

10.36 

2.12 

.88 

.43

34.24

Acre-feet

153,400 

85,030 

58,390

3,210,000

57,330 

39,870 

38,980 

236,400 

1,115,000 

906,300 

185,600 

76,770 

37,940

2,991,000

Peak discharge (base, 14,900 sec. -ft.).- May 22 (12 c.m. ) 43,400 sec. -ft.; June 4 (1Z m. ) 32,000

* Winter discharge measurement made on this day.

g Computed from graph based on gage readings.

h Computed from staff-gage readings.

Note-- Stage-discharge relation affected by Ice Dec. 2-12, 16, .17, Dec. 25 to Jar. 2, Jan. 6 to 

API^S (no gage-heignt record Jan. 18, Feb. 19-22). Faulty gage-height record fron sluggish intakes 

lor most of period Apr. 15 to Aug. 4; discharge computed from recorder graph corrected to dally 

staff-gage readings.
FEND OREILtE RIVER BASIN 263

Stillwater River near Whitefish, Mont.

Location.- Water-stage recorder, lat. 48°19', long. 114°23', in SW£ sec. 34, T. 30 N., R. 

22 W., 600 feet downstream from highway bridge, 7 miles southwest of WHtefish, and 

10 miles upstream from Whitefish Creek.

Drainage area.- 529 square miles.

Records available.- November 1930 to September 1948.

Average discharge.- 18 years, 330 second-feet.

Extremes.- Maximum discharge during year, 4,330 second-feet May 26 (gage height, 20.90 

feet, from high-water mark); minimum daily, 90 second-feet Mar^ 10.

1930-48: Maximum discharge, that of May 26, 1948; minimum daily, 4C second-feet 

Dec. 24, 1944; minimum gage height, 0.59 foot Sept. 15, 1944.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. No diversion.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

192 

187 

187 

182 

187

187 

192 

198 

210 

222

222 

222 

222 

216 

216

210 

204 

210 

234 

273

318 

352 

380 

408 

422

422 

408 

394 

380 

380 

366

Nov.

352 

325

292 

306 

306

299 

292 

292 

286 

280

280 

280 

273 

273 

273

260 

247 

240 

240 

228

228 

210 

210 

210 

210

210 

210 

*210 

210 

204

Dec.

210 

216 

210 

216 

204

192 

190 

185 

185 

185

185 

390 

190 

190 

185

180 

185 

185 

185 

175

170 

165 

165 

160 

155

150 

144 

145 

150 

145 

145

Jan.

145 

150 

155 

155 

3155

a!55 

al55 

155 

also 

a!45

al40 

al35 

al35 

a!30 

a 130

a!30 

a!35 

al35 

a!40 

alSO

al55 

a!55 

150 

*150

140

130 

125 

120 

120 

120 

120

Month

Octc 

Hove 

Dece

Cs

Janu 

Febi 

Marc 

Apri 

May 

June 

Julji 

Augr 

Sepl

WE

be r .......................

lendar year 194 

ary .

ember .....................

ter year 1947-48 ..........

Feb.

115 

110 

105 

105 

105

105 

110 

110 

105 

105

105 

105 

110 

115 

120

120 

120 

115 

110 

105

105 

110 

110 

110 

110

110 

105 

105 

105

Secondfoot-days

8,403 

7,736 

5,537

198,200

4/365 

3,170 

3,260 

21,723 

77,320 

43,234 

14,684 

10,166 

4,793

204,400

Mar.

loo

100 

95 

95 

95

100 

100 

100 

95 

90

95 

100 

100 

100 

105

105 

 110 

110 

110 

105

105 

110 

110 

105 

105

110 

115 

120 

120 

125 

125

Maximum

422

352 

216

3,200

155 

120 

125 

1,820 

4,320 

2,960 

715 

488 

220

4,320

Apr.

125 

130 

130 

135 

135

150 

160 

180 

204 

228

228 

234 

234 

240 

292

394 

491 

640 

802 

941

1,090 

1,200 

1,380 

1,550 

1,660

1,770 

1,820 

1,790 

1,730 

1,660

May

1,690 

1,760 

1,810 

1,830 

1,820

1,790 

1,750 

1,750 

1,790 

1,870

1,980 

2,060 

2,080 

2,080 

2,050

2,020 

2,000 

1,990 

2,010 

2,120

2,360 

2,750 

g3,330 

g3,770 

g4,150

g4,320 

g4,200 

g3,900 

g3,640 

g3,430 

g3,220

Minimum

182 

204 

144

70

120 

105 

90 

125 

1,690 

750 

353 

225 

139

90

June

2,960 

2,690 

2,460 

2,300 

2,170

2,080 

fl,970 

fl,860 

1,740 

1,630

1,550 

1,480 

1,410 

1,340 

1,290

1,220 

1,160 

1,120 

1,080 

1,030

983 

942 

914 

893 

888

873 

847 

818 

786 

750

Mean

271 

258 

179

543

141 

109 

105 

724 

2,494 

1,441 

474 

328 

160

558

July

715 

675 

637 

608 

584

558 

539 

527 

515 

500

487 

477 

466 

449 

439

431 

418 

403 

393 

400

410 

410 

408 

397 

380

364 

353 

366 

431 

471 

473

Per 

square 

mile

0.512 

.488 

.338

1.03

.267 

.206 

.198 

1.37 

4.71 

2.72 

.896 

.620 

.302

1.05

Aug.

474 

488 

474 

446 

432

404 

390 

376 

363 

363

363 

363 

363 

350 

330

318 

304 

292 

279 

267

261 

255 

249 

249 

255

249 

249 

255 

249 

231 

225

Sept.

220 

214 

203 

198 

186

181 

181 

176 

171 

166

166 iei

156 

152 

152

148 

143 

143 

143 

143

159 

139 

139 

139 

139

139 

139 

139 

139 

139

Runoff

Inches Acre feet

0.59 16,670 

.54 15,340 

.39 10,980

393,000

.31 3,660 

.22 6,290 

.23 6,470 

1.53 43,090 

5.43 153,400 

3.04 85,750 

1.03 29,130 

.71 20,160 

.34 9,510

14.36 405,400

Peak discharge (base, 540 sec. -ft.).- May 26 (about 4 laTm. ) "4,330 sec. -ft.

Winter discharge measurement made on this j

a No gage-height record; discharge computed on basis of weather records (stage-discharge relation 

affected by Ice most of time).

f Computed from partly estimated gage-height record.

g Computed from graph ba«ed on high-water mark and engineer's readings and observations

Note.- Stage-discharge relation affected by ice Dec. 7-26, Dee. 28 co Jan. 4, Jan. 8, Jan. 23 to 

Apr. 8.
264 PEHD OREILLE RIVER BASIK

Whitefish Creek near Kalispell, Mont.

Location.- Water-stage recorder, lat. 48°19 I , long. 114°16', in SW& sec. 34, T. 30 K., R. 

HJL w., 8 miles north of Kalispell and 8 miles upstream from mouth. Datum of gage is 

2[,969.7 feet above mean 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 1948.

Average dlscharge.» J9 years (1929-48), 187 second-feet.

Extremes.- Maximum .discharge during year, 1,290 second-feet May 30 (gage height, 4.41

reet); minimum daily, 40 second-feet Feb. 7-11; minimum gage height, 1.33 feet Mar. 18.

1906/.T 1928-48: Maximum discharge, that of May 30, 1948; minimum, 4.5 second-feet 

Oct. l&r 1934 (gage height, 0.83 foot).

Remarks.- Record^ good except those for periods of ice effect, which are poor. Some 

regulation by Whitefish Lake. No diversion.

Ratine table, water year 1947-48, except periods of Ice effect 

(gage height, in feet, and discharge, In second-feet)

1.3 64 2.0 252 3.5 863 

1.5 106 2.5 438 4.0 1,090 

1.7 155 3.0 641 4.4 1,280

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

147 

147 

147 

145 

145

145 

142 

142 

145 

145

145 

142 

139 

139 

137

137 

137 

137 

139 

147

155 

158 

158 

161 

161

161 

164 

167 

167 

170 

170

Nov.

173 

173 

173 

173 

173

173 

173 

173 

173 

173

173 

176 

176 

179 

179

176 

173 

173 

170 

164

155 

152 

152 

152 

155

158 

155 

155 

 150 

147

Dec.

155 

152 

150 

147 

145

142 

139 

134 

134 

134

134 

134 

132 

132 

129

127 

127 

124 

124 

122

122 

120 

118 

118 

115

113 

111 

111 

111 

111 

106

Jan.

106 

106 

106 

106 

106

104 

111 

113 

110 

100

90 

80 

7O 

65 

60

55 

53 

50 

50 

51

*52 

53 

53 

52 

50

50 

48 

45 

48 

50 

48

"onth ffot

Goto 

Hove 

Deoe

Ca

Janu 

Fsbi 

Hare 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lender year 1947 

ary

...... 1

ember .....................

Feb.

47 

45 

45 

43 

42

41 

40 

40 

40 

40

40 

42 

45 

47 

50

53 

55 

56 

56 

50

45

45 

48 

50 

55

57 

58 

58 

58

ond-

-days

4,6.41 

5,000 

3,973

02,113

2,241 

1,391 

2,241 

7,987 

23,423 

27,462 

8,205 

4,381 

3,277

ter year 1947-48 .......... 94,222

liar.

57 

55 

53 

53 

55

58 

57 

55 

55 

55

60 

80 

 88 

92 

95

93 

88 

74 

74 

74

74 

74 

76 

74 

76

74 

76 

76 

82 

93 

95

Maximum

170 

179 

155

1,160

113 

58 

95 

578 

1,280 

1,260 

442 

176 

120

1,280

Apr.

91 

106 

129 

145 

147

129 

115 

108

"3 

120

129 

122 

120 

120 

139

214 

259 

328 

343 

358

396 

466 

494 

482 

462

450 

430 

4.15 

474 

578

May

566 

546 

538 

538 

534

534 

570 

620 

628 

603

591 

583 

583 

583 

562

558 

559 

585 

616 

669

726 

817 

974 

1,060 

1,080

1,110 

1,140 

1,180 

1,220 

1,270 

1,280

Minimum

137 

147 

106

45

45- 

40 

53 

91 

534 

466 

164 

120 

102

40

June

1,260 

1,240 

1,240 

1,240 

1,230

1,210 

1,200 

1,180 

1,150 

1,120

1,100 

1,080 

1,040 

1,010 

966

915 

875 

842 

792 

748

712 

676 

667 

650 

628

603 

574 

542 

506 

466

Mean

150 

167 

128

280

72.3 

48.0 

72.3 

266 

756 

915 

265 

141 

109

257

July

442

423 

400 

385 

366

351 

339 

324 

309 

298

284 

273 

259 

248 

242

231 

217 

211 

207 

220

245 

224 

207 

195 

182

173 

164 

179 

217 

211 

179

Per 

square 

mile

0.867 

.965 

.740

1.62^

.418 

.277 

.418 

1.54 

4.37 

5.29 

1.53 

.815 

.630

1.49

Aug.

161 

176 

176 

167 

158

150 

150 

150 

147 

145

147 

147 

147 

145 

142

139 

139 

137 

132 

132

129 

129 

129 

129 

129

129 

127 

127 

124 

122 

120

Sept.

120 

118 

115 

115 

115

115 

113 

113 

111 

111

108 

108 

111 

111 

111

108 

108 

108 

108 

108

106 

106 

106 

108 

104

102 

104 

102 

102 

102

Runoff

Inches

1.00 

1.08 

.85

-

.48 

.30 

.48 

1.72 

5.04 

5.90 

1.76 

.94 

.70

20.25

Ac re- feet

9,210 

9,920 

7,880

202,600

4,440 

2,760 

4,440 

15,840 

46,460 

54,470 

16,270 

8,690 

6,500

186,900

Peak discharge (base, 530 see.-ft. ).^-May 30 (8 p.m.) 1,290 sec. -ft.

 * JHInter discharge measurement made on this day.

Note;- Stage-discharge relation affected by ice Jan. 9 to Mar. 16 (no gage-height record Mar. 4-11).
FEND OBEILLE RIVER BASIN 265

Ashley Creek near Kalispell, Mont.

Location.- Wire-weight gage ana Cippoletti weir, lat. 48°10', long. 114°26', in NW£ sec. 

 19, T. 28 N., R. 22 W., 5 miles west of Kalispell. Staff gage Oct. 1 to Mry 9, 

May 20 to June 14.

Drainage area.- 203 square miles.

Records available.- April 1931 to March 1933, April 1934 to September- 1948.

Average discharge.- 15 years (1931-32, 1935-48), 27.8 second-feet.

Extremes.- Maximum discharge during year, 749 second-feet May 27 (gage height, 7.58 feet, 

rrom graph based on gage readings); minimum observed, 7.0 second-feet Feb. °) (gage 

height, 3.34 feet).

1931-48: Maximum discharge, that of May 2^, 1948; no flow at times.

Remarks.- Records good. Gage read twice daily 

Smith Lakes.

Some diversions. Storage in Ashley and

Ratine table, water year 1948-49, except periods of Ice effect

(gage height, In feet, and discharge, in second-feet)

(Shifting-control method used May 8-23)

3.3 6.5 3.7 13 4.3 44 6.0 275 

3.4 7.8 3.8 16 4.6 70 6.5 382 

3.5 9.3 3.9 20 5.0 114 7.0 524 

3.6 11 4.0 25 5.5 186 7.6 758

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2

3 

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

15 

15 

15 

14 

14

14 

15 

16 

16 

16

16 

16 

16 

16 

16

17 

17 

17 

17 

17

18 

18 

18 

19 

19

19 

19 

19 

19 

20 

20

Nov.

20 

20 

20 

20 

21

21 

22 

22 

22 

22

22 

24 

22 

14 

15

20 

22 

22 

20 

19

16 

17 

20

20 

21

21 

16 

b!5 

b!6 

b!6

Dec.

*b!4 

b!3 

blS 

blS 

12

b!2 

b!2 

b!2 

blS 

b!4

b!5 

16 

16 

17 

18

15 

16 

17 

18 

17

17 

17 

17 

17 

16

16 

16 

16 

16 

16 

15

Jan.

15 

16 

16 

16 

16

16 

16 

17 

17 

17

17 

16 

15 

15 

14

13 

12 

12 

12 

12

12 

12 

13 

*13 

b!3

b!2 

12 

13 

13 

12 

12

Feb.

12 

12 

11 

10 

9.7

9.0 

8.1 

7.8 

7.0 

7.3

7.5 

7.5 

7.7 

13 

22

22 

29 

22 

17 

16

15 

14 

14 

14 

15

23 

19 

18 

18

Konth

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hav

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

18 

19 

19 

19 

20

21 

21 

21 

21 

b21

b22 

24 

27 

24 

*24

28 

25 

22 

22 

22

24 

33 

33 

30 

29

27 

30 

35 

38 

41 

54

Apr.

70 

91 

114 

127 

114

114 

114 

114 

114 

114

114 

114 

120 

120 

120

127 

134 

141 

155 

155

155 

170 

212 

256 

256

275 

275 

275 

275 

275

Secondfoot-days

523 

588 

476

25,322.9

437 

407.6 

814 

4,810 

15,013 

11,029 

3,576 

1.S23 

502

39,798.6

Peak discharge (base, 28 sec.-ft. ).- May 27 (12 p.m.)

May

284 

292 

300 

308 

306

304 

306 

340 

387 

a410

a425 

a440 

a455 

468 

462

454 

452 

455 

457 

476

510 

533 

562 

643 

694

714 

789 

733 

719 

715 

680

Maximum

20 

24 

18

374

17 

29 

54 

275 

733 

657 

188 

80 

28

733

June

657 

627 

608 

594 

567

533 

502 

. 471 

441 

419

394 

385 

370 

347 

327

312 

302 

293 

286 

275

265 

251 

242 

231 

229

224 

234 

227 

215 

201

July

188 

178 

170 

162 

155

149 

144 

138 

133 

128

127 

124 

119 

114 

109

104 

101 

98 

98 

99

98 

94 

90 

87 

84

81 

79 

80 

82 

82 

81

Aug.

80 

8O 

80 

75 

75

75 

70 

66 

66 

61

61 

58 

56 

55 

53

50 

47 

46 

44 

42

40 

38 

38 

36 

35

35 

33 

33 

32 

32 

31

Sept.

28 

34 

24 

22 

22

20 

20 

19 

19 

18

18 

17 

17 

16 

16

15 

14 

14 

14 

14

13 

13 

13 

13 

13

13 

13 

13 

14 

13

Minimum Mean *«££

14 16.9 1,040 

14 19.6 1,170 

12 15.4 944

4.7 69.4 50,230

12 14.1 867 

7.0 14.1 808 

18 26.3 1,610 

70 160 9,540 

284 434 29,780 

201 3<58 21,880 

79 115 7,090 

31 52.4 3,220 

13 16.7 996

7.0 109 78,940

749 sec.-ft.

* Winter discharge measurement made on this day 

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by Ice.
266 PEND OREILLE RIVER BASIN

Swan River near Big fork, 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.- 64? square miles.

Records available.- April 1922 'to September 1948. October 1910 to May 1911 at site 2 

miles upstream 1'fom Swan Lake'.

Average discharge.- 22 years (1922-24, l'928-48), 1,015 second-feet.

Extremes.- Maximum discharge during year, 8,400 second-feet May 24 (gage heigl-t, 7.12 

reet, from graph based on gage readings); minimum discharge, 372 second-feet Feb. 9, 

15 (gage height, 2.28 feet).

1922-48: Maximum discharge, that of May 24, 1948; minimum, 85 second-feet Jan. 

26-29, 1930 (gage height, 0.04 foot).

Remarks.- Records good. Np diversion above station. Natural storage in Swan Lake.

Rating table, water year 1947-48 (gage height, In feet, 

and discharge, in second-feet)

2.3 

2.5 

2.8 

3.1 

3.5

385

535

795

1,090

1,530

4.0 

4.5 

5.0 

6.0 

7.1

2,220

2,980

3,860

5,880

8,350

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

660 

642 

651 

687 

759

S42 

920 

970 

1,010 

1,010

1,010 

1,000 

980 

940 

910

900 

900 

920 

990

1,060

1,130 

1,180 

1,190 

1,180 

1,140

1,100 

1,060 

1,020 

980 

940 

930

Nov.

910 

880 

824 

795 

786

759 

750 

75f 

741 

750

777 

795 

795 

804 

795

750 

750 

723 

705 

696

669 

642 

624 

624 

642

642 

660 

687 

705 

705

Dec.

714 

714 

705 

687 

669

651 

651 

633 

615 

615

624 

615 

607 

599 

599

599 

583 

583 

583 

591

591 

583 

583 

567 

551

543 

527 

527 

535 

543 

535

Jan.

495 

511 

535

551 

551

551 

633 

759 

842 

871

824 

833 

795 

714 

660

651 

633 

633 

624 

633

624 

624

624 

615 

607

575 

519 

487 

471 

479 

495

Feb.

511 

487 

471 

455 

434

413 

406 

406 

406 

420

413

406 

406 

406 

420

434 

455 

463

479 

479

487 

495 

503 

503 

503

551 

607 

642 

651

foo^s

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

2

1

lendar year 1947

1 ............

ember ........

1 

^

4

14

.......... 14

4

?

............. 1

9,611 

2,135 

8,722

8,125

9,419 

3,712 

5,851 

8,723 

3,630 

5,300 

8,230 

6,799 

4,514

ter year 1947-48 .......... 543,646

Peak discharge

sec. -ft. ; May 24 

g Computed from 

h Computed from

Mar.

651 

642 

633 

607 

575

559 

559 

559 

543 

495

463 

448 

471 

471 

471

471 

463 

463 

471 

471

455 

471 

471 

471 

471

487 

495 

479 

495 

527 

543

Maximum

1,190 

910

714

5,960

871 

651 

651 

3,580 

8,350 

7,100 

2,610 

1,170 

599

8,350

Apr.

567 

583 

607 

660 

696

714 

732, 

732 

723 

723

750 

768 

768 

759 

759

842 

1,040 

1,340 

1,760 

2,140

2,520 

2,820 

3,220 

3,490 

3,580

3,580 

3,310 

3,060 

2,740 

2,740

May

2 

2 

2 

2 

2

2 

2 

2 

3 

3

3 

3 

3 

3 

3

3 

2 

2 

3 

4

5 

6 

g7 

g8 

g7

7 

6 

7 

7 

7 

7

Minimum

642 

624 

527

470

471 

406 

448 

567 

2,610 

2,660 

1,050 

615 

399

399

base, 3,300 sec. -ft.).- Apr. 25 (7:30 p.m.) 3

8 a.m. to 4 p.m.) 8,400 se 

graph based on staff-gage 

staff -gage readings.

c.-ft. 

readings.

,870 

,920 

,870 

,740 

,720

,620 

,610 

,790 

,290 

,780

,780 

,530 

,260 

,170 

,160

,060 

,920 

,980 

,400 

,010

,000 

,340 

,760 

,350 

,660

,070 

,980 

,160 

,440 

,390

,000

June

6,510 

6,300 

6,410 

6,780 

7,100

6,970 

6,580 

6,340 

6,280 

6,400

6,490 

6,250 

5,750 

5,240 

4,820

4,480 

4,230 

4,110 

3,910 

3,650

3,320 

3,240 

3,260 

3,280 

3,220

3,120 

3,000 

2,870 

2,730 

2,660

Mean

955 

738 

604

1,337

626 

473 

511 

1,624 

4,536 

4,843 

1,556 

864 

484

1,485

July

2,610 

2,540 

2,460 

2,340 

2,240

2,080 

1,970 

1,900 

1,800 

1,760

1,650 

1,560 

1,480 

1,430 

1,380

1,320 

1,290 

1,230 

1,200 

1,230

1,260 

1,240 

1,200 

1,190 

1,130

hi, 090 

hi, 050 

hi, 090 

hi, 170

hi, 170 

hi, 170

Per 

square 

mile

1.48 

1.14 

.934

2.07

.968 

.731 

.790 

2.51 

7.01 

7.49 

2.40 

1.34 

.748

2.30

Aug.

hi, 170 

hi, 170 

hi, 170 

hi, 170 

hi, 150

hi, 110 

1,090 

hi, 090 

1,010 

970

950 

920 

890 

862 

824

795 

777 

759 

750 

732

714 

705 

714 

705 

705

687 

678 

660 

633 

624 

615

Sept.

583 

575 

h599 

h583 

h567

h567 

h551 

h535 

h535 

h519

h519 

h503 

511 

503 

471

471 

455 

455 

h441 

h427

h413 

h427 

h427 

h427 

h427

h413 

h413 

h399 

h399 

h399

Runoff

Inche s

1.71 1.2" 

l.OF

28. OF

1.1? 

.7f 

.93 

2.8C 

8. OF 

8.3F 

2.7T 

1.54 

.83

31. 26

,630 sec. -ft.; May 1O (12

Acre-feet

58,730 

43,900 

37,130

968,200

38,520 

27,200 

31,440 

96,640 

278,900 

288,200 

95,660 

53,160 

28,790

1,078,000

p.m.) 3,860
PEND OREILLE RIVER BASIN 267

Priest Lake at outlet, near Coolin, Idaho

Location.- Water-stage recorder, lat. 48°29'30", long. 116 0 53'00", in SE£ sec. 5, T. 

t>9 N., R. 4 W., half a mile east of outlet and if miles northwest of Coolin. Datum 

of gage is 2,435.06 feet (Coast and Geodetic Survey datum) or 2,437.99 feet (Geological Survey datum) above mean sea level.

Drainage area.- 572 square miles.

Records available.- April 1928 to September 1948. June 1911 to September 1913 (fragmentary 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, 6.46 feet May 29, 30; minimum, 0.45 foot

1928-48: Maximum gage height, that of May 29, 30, 1948; mininum observed, -0.16 

foot Nov. 22-25, Dec. 4-6, 1936.

Gage height, In feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.71

.72

.74

.77

.82

.83

.82

.83

.86

.92

.95

.97

.99

1.00

1.05

1.20

1.38

1.60

1.82

2.10

2.30

2.41

2.47

2.53

2.56

2.58

2.60

2.62

2.64

2.66

2.66

Nor.

2.64

2.63

2.64

2.64

2.60

2.54

2.52

2.50

2.47

2.43

2.4U

2.36

2.34

2.29

2.27

2.24

2.21

2.18

2.15

2.12

2.07

2.01

1.97

1.93

1.89

1.86

1.82

1.77

1.73

1.69

-

Dec.

1.67

1.68

1.70

1.71

1.71

1.71

1.71

1.71

1-.71

1.70

1.70

1.70

1.68

1.69

1.69

1.68

1.71

1.73

1.77

1.77

1.77

1.77

1.77

al.77

al.77

al.77

al.77

1.77

1.7-7

1.76

1.76

Jan.

al.77

al.SO

al.82

1.84

1.84

1.88

1.90

1.90

1.89

1.89

1.89

al.87

1.84

1.83

1.81

1.79

al.76

al.75

al.75

1.74

1.73

1.72

1.72

1.72

1.71

1.69

1.68

1.67

1.65

1.65

1.65

Feb.

1.65

1.63

1.63

1.63

1.61

1.58

1.57

1.62

al.66

al.65

1.64

1.64

1.64

1.66

1.71

al.72

al.73

1.73

1.72

1.70

1.70

1.73

1.72

1.72

1.74

1.78

1.80

1.80

1.78

_

-

Mar.

1.78

1.77

1.77

1.75

1.74

1.73

1.72

1.72

1.70

1.68

1.67

1.66

1.65

1.63

1.63

1.62

1.60

1.61

1.62

1.61

1.64

1.66

1.67

1.67

1.66

1.66

1.66

1.66

1.67

1.67

1.69

Apr.

1.70

1.73

1.77

1.79

1.81

1.83

1.85

1.84

1.85

1.86

1.87

1.89

1.89

1.89

1.90

1.97

2.11

2.25

2.35

2.47

2.62

2.84

3.06

3.29

3.41

3.52

3.50

3.44

3.42

3.46

-

May

a3.44

a3.44

a3.45

a3.46

h3.50

a3.56

a3.60

a3.67

a3.76

h3.73

33.60

a3.55

a3.60

a3.70

a3.80

a3.90

h4.00

a4.10

a4.30

34.45

34.75

35.10

35.45

35,65

h5.78

a5.90

36.06

36.25

6.45

6.43

6.32

June

6.19

6.10

6.02

5.96

5.87

5.77

5.65

5.55

5.45

5.38

5.28

5.18

5.02

4.84

4.65

4.50

4.39

4.27

4.11

3.94

3.82

3.71

3.63

3.62

3.56

3.49

3.40

3.30

3.20

3.08

July

2.97

2.86

2.76

2.66

2.59

2.54

2.50

2.45

2.39

2.33

2.26

32.16

H2.08

32.00

al.94

31.86

31.82

hi. 80

31.81

hi. 82

31.78

al.76

al.75

al.71

1.67

1.63

1.58

1.62

1.62

1.6C

1.57

Aug.

1.56

1.54

1.50

1.47

1.43

1.40

1.37

1.34

1.31

1.32

1.33

1.33

.31

.28

.24

.21

.17

.13

.09

.07

1.04

1.02

.98

.95

.93

.93

.91

.89

.88

.86

.84

Sept.

0.82

.78

.74

.72

.70

.69

.67

.65

.64

.63

.62

.61

.59

.56

.54

.54

.54

.54

.53

.51

.49

.47

.47

.48

.47

.48

.49

.48

.48

.48

a Computed on basis of gage-height record for Priest River at outlet of Priest Lake 

h Staff-gage reading.

nesr Coolin.
268 PEND OREILLE RIVER BASIN

Priest River at-outlet of Priest Lake, near Coolin, Idaho

Location.- Water-stage recorder, lat. 48°29', long. 116"54', in SW£ sec. 5, T. 59 N., R. 

4 w., at southwest end of Priest Lake, 2 miles northwest of Coolin. Datum of gage is 

2,435.06 feet {Coast and Geodetic Survey datum) or 2,437.99 feet (Geological Survey 

datum) above mean sea level.

Drainage area.- 572 square miles.

.Records available.- June 1911 to September 1918 (fragmentary), May 1919 tcSeptember 1948.

Average discharge.- 34 years (1913-18, 1919-4B), 1,094 second-feet.

Extremes.- Maximum discharge during year, 8,560 second-feet May 29 (gage height, 5.53 

i'eet); minimum recorded, 273 second-feet Oct. 1, but may have been lo~*er during 

period of no gage-height record Sept. 14-30.

1911-48: Maximum discharge, that of May 29, 1948; minimum, 118 aecand-feet Nov. 25, 

1936; minimum gage height,-0.42 foot Oct. 19, 1946, computed on basis of Priest Lake 

gage heights.

Remarks.- Records fair. No diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

315 

360 

400 

416 

444

449

466 

460 

472 

502

520 

532 

532 

526 

544

699 

776 

889 

1,010 

1,300

1,460 

1,480 

1,380 

1,240 

1,260

1,280 

1,310 

1,320 

1,340 

1,330 

1,490

Nov.

1,720 

1,700 

1,710 

1,720 

1,650

1,600 

1,580 

1,570 

1,520 

1,480

1,460 

1,420 

1,410 

1,290 

1,220

1,210 

1,170 

al,150 

al,150 

al.150

al,2oo 

al,150 

1,120 

1,080 

1,060

1,020 

1,010 

1,020 

1,020 

979

Dec.

714 

449 

438 

438 

438

438 

438 

462 

520 

514

520 

520 

520 

538 

574

568 

587 

615 

641 

601

601 

594 

587 

580 

580

574 

568 

568 

568 

568 

562

Jan.

568 

587 

594 

601 

601

615 

629 

622 

622 

622

615 

606 

6O1 

608 

580

574 

568 

562 

550 

550

544 

538 

520 

490 

478

454 

449 

444

438 

438 

432

Month

Octo 

Neve 

Dece

Ca

Janu 

Febr 

llaro 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

bar .....................

mber ..............

lendar year 1947 

ary ...... .

h .................

1 .....................

st ...................

ember ..................

ter year 1947-48 ......

Feb.

438 

422 

416 

416 

405

390 

390 

405 

422 

416

416 

416 

416 

422 

449

454 

460 

472 

478 

472

472 

478 

466 

460 

460

484 

496 

490 

490

Second 

foot-days

26,502 

39,539 

16,883

502,128

17,102 

12,871 

13,758 

33,021 

155,350 

162,660 

51,740 

24,OOO 

11,990

565,416

Mar

49O 

484 

484 

478 

472

472 

466 

460 

460 

449

444 

438 

432 

432 

422

416 

405 

405 

410 

410

416 

438 

444 

444

438

432

432 

438 

438 

449 

460

Maximum

1,490 

1,720 

714

6,140

629 

496 

490 

3,000 

8,500 

8,040 

2,840 

1,050 

508

8,500

Apr.

562 

580 

601 

601 

608

629 

629 

629 

643

650

650 

643 

643 

643 

659

648 

678 

715 

778 

864

950 

1,140 

1,320 

1,620 

1,920

2,O2O 

2,660 

2,400 

2,940 

3,000

May

2,980 

2,960 

2,950 

3,000 

2,950

2,980 

3,060 

3,150 

3,230 

3,320

3,400 

3,830 

,110 

,220 

,280

,330 

,410 

,560 

,730 

5,080

5,620 

6,180 

6,760 

7,120 

7,w90

7,510 

7,840 

8,250 

8,500 

8,480 

8,270

Minimum

315 

979 

438

305

432 

390 

405 

562 

2,950 

3,010 

1,000 

526 

300

300

June

8,040 

7,840 

7,700 

7,580 

7,460

7,320 

7,090 

6,900 

6,740 

6,630

6,460 

6,300 

6,010 

5,700 

5,380

5,140 

4,970 

4,750 

4,490 

4,230

4,060 

3,930 

3,790 

3,790 

3,720

3,630 

3,480 

3,540 

3,180 

3,01O

Mean

855 

1,318 

545

1,376

552 

444 

444

1,101 

5,011 

5,422 

1,669 

774 

400

1,545

July

2,840

2,700 

2,540 

2,400 

2,330

2,290 

2,240 

2,190 

2,110 

2,030

1,930 

1,850 

1,780 

1,710 

1,640

1,590 

1,530 

1,460 

1,000 

1,000

1,210 

1,280 

1,230 

1,180 

1,130

1,110 

1,080 

1,110 

1,100 

1,080 

1,070

Per 

square 

mile

1.49 

2.30 

.953

2.41

.965 

.776 

.776 

1.92 

8.76 

9.48 

2.92 

1.35 

.699

2.70

Aug.

1,050 

1,040 

1,010 

988 

954

929 

921 

897 

873 

873

881 

881 

865 

850 

820

805 

783 

762 

720 

699

692 

671 

636 

580 

568

562 

550 

538 

526 

550 

526

Sept.

508 

460 

449 

438 

438

438 

432 

422 

416 

416

454

438 

405 

4380 

a34O

a33u 

h330 

a340 

a380 

416

395 

390 

a420 

a390 

a350

a300 

a320 

a420 

a400 

a375

Runoff

Inches

1.72 

2.57 

1.10

32.64

1.11 

.84 

.89 

2.15 

10.10 

3,0.58 

3.36 

1.56 

.78

36.76

Peak discharge (base, 2,430 sec. -ft.).- 8.560 sec. -ft. (4 to 10 p.m.).

Acre-feet

52,570 

78,420 

33,490

996,000

33,920 

25,530 

27,290 

65,500 

308,100 

322,600 

102,600 

47,600 

23,780

.1,121,000

e> nv. Babt»-iie.Lgiii, recora; uiEcnarge computed on Da 

River near Priest River and Priest Lake at outlet, 

h Computed from staff-gage reading.
PEND OREILLE RIVER BASIN 269

Priest River near Priest River, Idaho

Location.- Water-stage recorder, lat. 48°13', long. 116°55', in NE&SE& sec. 11, T. 56 

ff., H. 5 W., 500 feet downstream from Saddler Creek, a quarter of a mile downstream 

from Lower West Branch, 2f miles north of Priest River, and 3i miles upstream from 

mouth.

Drainage area.- 902 square miles.

Records available.- October 1930 to September 1948. June 1903 to April 190,3, November 

19J.U to April 1911, May to December 1923, February 1929 to September 1930 at site 3 

miles downstream.

Average discharge.- 18 years (1930-48), 1,538 second-feet.

Extremes.- Maximum discharge during year, 10,500 second-feet May 29, 30; maximum gage 

neignt, 8.97 feet May 29; minimum discharge, 477 second-feet Oct. 1 (gag? height,

1903-5, 1910-11, 1923, 1929-48: -Maximum discharge, that of May 29, 30, 1948; 

maximum gage height, that of May 29, 1948: minimum discharge recorded, 184 secondfeet Jan. 7, 1937 (gage height, 0.54 foot).

Remarks.- Records excellent except those for periods of ice effect, which are good, 

ifo diversions above station. Some regulation on tributary and by logs dumped into 

outlet of Priest Lake.

Rating table, water year 1947-48, except periods of Ice effect 

(gage height, In feet, and discharge, in second-feet)

1.1

1.2 

1.4 

1.8 

2.2

445

499

615

871

1,160

2.7 

3.3 

4.0 

5.0 

6.0

1,580

2,150

2,900

4,160

5,620

7.0 7,200

8.0 8,900

9.0 10,600

Discharge, in seoond-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

488 

533 

568 

586 

621

621 

591 

597 

603 

676

720 

682 

664 

676 

720

1,040 

1,220 

1,510 

1,760 

2,080

2,340 

2,200 

2,140 

1,820 

1,760

1,720 

1,750 

1,800 

1,800 

1,860 

1,990

Nov.

2,190 

2,200 

2,220 

2,240 

2,190

2,120 

2.O30 

2,060 

2,020 

1,960

1,930 

1,900 

1,920 

1,920 

1,690

1,620 

1,590 

1,580 

1,550 

1,530

1,600 

1,560 

1,550 

1,520 

1,490

1,500 

1,540 

1,490 

1,440 

1,410

Dec.

1,390 

933 

838 

811 

798

798 

791 

791 

858 

851

871 

878 

891 

975 

947

954 

1,010 

1,220 

1,420 

1,180

1,030 

 996 

975 

961 

961

947 

940 

1,030 

1,020 

912 

926

Jan.

954 

1,070 

1,080 

1,030 

989

1,080 

1,160 

1,220 

1,070 

1,040

1,010 

933 

900 

880 

850

840 

878 

858 

844 

831

831 

817 

824 

798 

720

670 

650 

630 

640 

650 

a£90

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febi 

Marc 

Apr! 

May 

June 

Julj 

Augu 

Sept

Wa

 her ......................

lender year 1947 .........

ary

ember .....................

ter year 1947-48 ..........

Feb.

690 

660 

630 

630 

620

600 

600 

600 

640 

650

640 

650 

658 

652 

708

733 

891 

1,200 

1,060 

919

858 

844 

*844 

8S1 

811

871 

864 

831 

811

Secondfoot-days

38,136 

53,560 

29,903

662,849

27,427 

21,996 

26,764 

74,660 

218,820 

199,060 

67,510 

34,634 

18,914

811,384

Mar.

798 

798 

772 

746 

746

739 

746 

739 

726 

695

708 

701 

689 

689 

701

726 

746 

765 

739 

720

746 

1,040 

1,010 

1,000 

989

1,030 

1,070 

1,220 

1,350 

1.320 

1,300'

Maximum

2,340 

2,240 

1,420

7,020

1,220 

1,200 

1,350 

4,720 

10,400 

9,680 

3,600 

1,540 

817

10,400

Apr.

1,370 

1,590 

1,750 

1,650 

1,590

1,510 

1,430 

1,370 

1,400 

1,470

1,480 

1,420 

1,360 

1,350 

1,380

1,800 

2,600 

2,950 

2,780 

2,740

2,860 

3,210 

3,480 

3,510 

4,150

4,120 

4,720 

4,580 

4,450 

4,590

May

4,570 

4,500 

4,540 

5,020 

4,870

4,720 

5,080 

5,470 

5,530 

5,500

5,800 

5,770 

6,720 

6,900 

6,660

6,430 

6,410 

6,510

6 t590 

6,940

7,550 

8,210 

9,060 

9,400 

9,480

9,630 

9,860 

10,200 

10,400 

10,400 

10,100

Minimum

488 

1,410 

791

456

630 

600 

689 

1,350 

4,500 

3,700 

1,440 

798 

505

488

June

9,680 

9,440 

9,500 

9,360 

9,160

8,810 

8,530 

8,250 

8,060 

7,970

7,780 

7,680 

7,270 

6,840 

6,520

6,510 

6,640 

6,130 

5,700 

5,390

5,190 

4,940 

4,710 

4,660 

4,610

4,310 

4,160 

3,960 

3,800 

3,700

Mean

1,230 

1,785 

965

1,816

885 

758 

863 

2,489 

7,059 

6,635 

2,178 

1,117 

630

2,217

July3,600 

3,430 

3,300 

3,1«0 

3,160

3,090 

2,830 

2,800 

2,650 

2,540

2,440 

2,330 

2,240 

2,170 

2,110

2,060 

1,980 

1,910 

1,910 

1,170

1,480 

1,580 

1,590 

1,540 

1,510

1,460 

1,460 

1,550 

1,550 

1,490 

1,440

Per 

square 

mile

1.36 

1.98 

1.07

2.01

.981 

.840 

.957 

2.76 

7.83 

7.36 

2.41 

1.24 

.698

2.46

Aug.

1,440 

1,540 

1,440 

1,380 

1,340

1,310 

1,290 

1,260 

1,240 

1,220

1,230 

1,240 

1,220 

1,190 

1,170

1,140 

1,110 

1,090 

1,060 

1,040

1,030 

1,020 

1,000 

885 

844

838 

831 

817 

804 

798 

817

Sept.

817 

772 

733 

695 

695

689 

676 

664 

658 

652

695 

676 

646 

615 

568

556 

568 

568 

556 

603

621 

621 

639 

597 539*

505 

516 

603 

597 

574

Runoff

Inches

1.57 

2.21 

1.23

27.33

1.13 

.91 

1.10 

3.08 

9.02 

8.21 

2.78 

1.43 

.78

33.45

Ac re- feet

75,640 

106,200 

59,310

1,315,000

54,400 

43,630 

53,090 

148,100 

434,000 

394,800 

133,900 

68,700 

37,520

1,609,000

Peak discharge (base, 4,540 sec. -ft.).- May 29 (10 a.m.) to May 3O (1O a.m.) 10,500 sec. -ft.

* Winter discharge measurement 'made on this day.

a H» gage-height record; discharge computed on basis of weacner records and recco-ds for station 

near Coolln. 

Note.- Stage-discharge relation affected by ice Jan. 13-16, Jan. 25 to ?eb. 12.
2'/U 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. 40 

N., R. 32 E., 1-f 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 to datum of l c)2y).

Drainage area.- 2,220 square miles.

Records available.- August 1928 to September 1948.

Average discharge.- 20 years, 1,387 second-feet.

Extremes.- Maximum discharge during year, 21,200 second-feet May 29 (gage height, 21.15 

feet); minimum not determined, probably occurred sometime during period of ice effect 

Jan. 12-13.

1928-48: Maximum discharge, that of May 29, 1948; minimum, 14 second-feet (dischargemeasurement) Jan. 23, 1930, but may have been less during period of ice effect 

Jan. 18-23, 1930.

Remarks.- Records excellent except those for periods of ice effect, which are fair, 

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 1947-48, except periods of ice effec 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Sept. 1-30)

9.5 130 11.5 1,360 15.0 6,230 

9.7 190 12.0 1,870 16.0 8,220 

9.9 260 12.5 2,430 17.0 10,400 

10.2 395 13.0 3,040 19.0 15,300 

10.6 620 13.5 3,710 21.0 20,800 

11.0 920 14.0 4,460

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

172 

175 

178 

190 

272

256 

253 

242 

246 

268

327 

385 

370 

350 

390

456 

896 

952 

856 

1,03*

1,030 

904 

808 

760 

711

683 

662 

655 

648 

655 

648

Nov.

662 

760 

880 

824 

832

676

690 

690 

676 

648

634 

620 

608 

596

566

500 

44U 

456 

542 

554

506 

484 

467 

484 

494

500 

524 

506 

440 

395

Dec.

390 

440 

450 

450 

445

390 

390 

380 

360 

292

268 

*304 

400 

385 

360

395 

375 

411 

405 

395

385 

390 

390 

390 

380

375 

365 

350 

340 

253 

£46

Jan.

276 

309 

288 

304 

300

318 

332 

300 

264 

239

184 

b!60 

b!40 

157 

166

190 

236 

£76 

289 

292

292

296 

300 

300 

296

272 

236 

200 

200 

b200 

b200

Feb.

b200 

b£OO 

*b200 

b£00 

b200

b£00 

194 

197 

200 

200

190 

194 

190 

194 

197

200 

197 

200 

b200 

184

184 

194 

197 

200 

197

200 

b200 

*b200 

b200

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MATT

June 

July 

Augu 

Sept

Wa

mber. ...................................

mber. ...................................

lendar year 1947

1. ......................................

ember. ..................................

ter year 1947-48 .......................

Mar.

200 

b200 

b200 

197 

208

204 

218 

218 

204 

204

197 

208 

208 

211 

211

218 

222 

222 

218

204

208 

214 

214 

200 

204

208 

204 

218 

246 

256 

253

Apr.

1, 

1, 

1,

2, 

3, 

4, 

3, 

3,

3, 

2, 

2, 

3, 

5,

Secondfoot-days

16,428 

17,654 

11,548

396,898

7,803 

5,709 

6,597 

44,317 

311,880 

246,580 

47,242 

61,606 

22,390

799,754

250 

264 

292 

288 

268

260 

266 

256 

253 

264

268 

276 

280 

280 

292

385 

711 

140 

460 

820

370 

360 

000 

850 

570

170 

850 

670 

420 

490

May

5,490 

4,790 

4,460 

4,790 

4,620

4,790 

6,230 

6,420 

6,420 

6,420

6,420 

7,000 

8,010 

8,430 

7,800

7,400 

8,170 

9,450 

9,450

9,420

11,300 

13,700 

14,200 

15,800 

16,500

15,900 

17,100 

19,300 

20,300 

17,900 

13,900

Maximum

1,030 

 880 

450

8,850

332 

200 

256 

5,490 

20,300 

13,900 

2,490 

3,360 

1,320

20,300

June

12,300 

11,700 

11,600 

11,500 

11,300

11,300 

11,500 

11,500 

11,100 

11,100

13,900 

11,200 

9,520 

8,160 

7,450

7,590 8,440' 

7,980 

6,840 

6,110

6,080 

6,610 

5,670 

4,960 

4,460

4,000 

3,640 

3,300 

3,040 

2,730

July

2,490 

2,260 

2,090 

1,920 

1,820

1,870 

1,920 

1,920 

1,980 

1,760

1,610 

1,710 

1,820 

1,610 

1,460

1,360 

1,320 

1,220 

1,220 

1,320

1,320 

1,170 

1,060 

1,020 

1,040

984 

928 

1,060 

1,510 

1,320

i.r.so

Aug.

1,040 

976 

960 

1,040 

2,740

3,360 

3,240 

2,730 

2,370 

2,200

2,310 

2,370 

2,310 

2,090 

1,980

2,040 

2,090 

1,820 

1,710 

1,710

1,760 

2,260 

2,490 

?,200 

?,040

1,870 

1,760 

1,610 

1,610 

1,510 

1,410

Minimum Mean

172 530 

395 56 8 

246 373

90 1.0E7

140 2E2 

184 1S7 

197 213 

250 1,477 

4,460 10,060 

2,730 8,219 

928 1,524 

960 1,967 

524 746

140 2,lfi5

Sept.

1,320 

1,220 

1,140, 

1,090 

1,050

1,000 

960 

896 

856 

816

768 

739 

704 

662 

627

608 

596 

590 

590 

560

542 

530 

524 

578 

590

554 

536 

530 

566 

648

Runoff In 

acre-feet

32,580 

35,020 

22,910

787,300

15,480 

11,320 

13,080 

87,900 

618,600 

489,100 

93,700 

122,200 

44,410

1,586,000

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
KETTLE RIVER BASIN 271

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., K. 36 E., 500 feet downstream from Deep Creek, 1^ miles southeast of Laurier, and 

12 miles upstream from Boulder Creek.

Drainage area.- 3,800 square miles.

Kecords available.- September 1929 to September 1948.

Average discharge.- 19 years, 2,699 second-feet.

.Extremes.- Maximum discharge during year, 35,000 second-feet May 29 (gage height, 17.25 

feet); minimum, 371 second-feet Oct. 1 (gage height, 2.93 feet).

1929-48: Maximum discharge, that of May 291 , 1948; minimum not detemined (probably 

occurred during winter of 1929-30).

Maximum stage known, about 22 feet sometime in May or June 1894, fron information 

by local residents.

Remarks.- Records excellent except those for periods of ice effect or no gage-height recora, 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: 1930,1931. W 862: 1937. W882: 1938.

Rating table, water year 1947-48, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Aug. 19 to Sept. 3O)

2.9 357 5.5 2,410 10. O 11,1OO 

3.1 455 6.0 3,050 11. 0 13,60O 

3.5 690 6.5 3,800 12. 0 16,3OO 

4.0 1,030 7.0 4,630 13.0 19,400 

4.5 1,430 8.0 6,540 15. O 26,3OO 

5.0 1,890 9.0 8,710 17.1 34,40O

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

371 

376 

376 

415 

466

510 

522 

522 

528 

594

703 

762 

800 

827 

869

1,190 

2,090 

2,360 

2.3OO 

2,780

2,780 

2,470 

2,240 

2,090 

1,990

1,890 

1,790 

1,790 

1,790 

1,790 

1,840

Nov.

1,940 

2,240 

*2,410 

2,360 

2,190

2,040 

1,990 

1,940 

1,890 

1,840

1,790 

1,740 

1,700 

1,700 

1,610

1,560 

1,430 

1,430 

1,390 

1,430

1,430 

1,370 

1,280 

1,280 

1,290

1,300 

1,300 

1,260 

1,210 

1,170

Dec.

1,140 

1,110 

1,110 

1,150 

1,110

1,000 

1,000 

l.OOO 

960 

920

 848 

834 

920 

920 

910

990 

980 

1,000 

1,030 

960

960 

960 

920 

920 

920

920 

890 

890 

890 

f78: 

703

Jan.

729 

788 

781 

827 

755

827 

820 

807 

690 

660

620 

588 

560 

570 

590

610 

636 

684 

690 

729

736 

716 

710 

710 

700

680 

640 

590 

570 

560 

540

Feb.

540 

*530 

530 

520 

520

520 

510 

510 

510 

510

500 

500 

500 

500 

500

490 

490 

490 

490 

480

480 

480 

480 

480 

*470

470 

470 

470 

470

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

470 

470 

470 

470 

470

470 

470 

470 

480 

480

490 

494 

522 

534 

534

534 

540 

552 

558 

546

534 

558 

570 

570 

576

582 

594 

630 

710 

834 

876

Apr.

1

1 

1

1 

1 

1

1 

1

1 

1 

1 

1 

1

1 

3 

4 

5 

5

6 

8 

10 

9 

8

7 

6 

6 

6 

9

Secondfoot-days

41,821 

49,510 

29,646

844,501

21,113 

14,410 

17,058 

118,150 

557,930 

440,850 

85,790 

90,590 

38,100

1,504,968

890 

960 

O3O 

,030 

030

,030 

000 

000

ooo

03O

O7O 

110 

110 

110 

150

570 

230 

630 

170 

940

960 

710 

300 

860 

940

820 

960 

340 

540 

630

May

11,300 

10,100 

9,170 

9,630 

9,630

9,400 

11,100 

12,600 

12,600 

12,600

12,600 

13,100 

14,100 

15,500 

14,700

13,600 

14,100 

16,400 

16,700 

16,5OO

19,200 

24,100 

25,300 

25,600 

27,800

27,100 

28 , 400 

31 , 400 

34,200 

32,800 

26,600

Maximum

2,780 

2,410 

1,150

15,800

827 

540 

876 

1O,3OO 

34,20O 

22,400 

4,810 

4,630 

2,090

34,200

June

22 , 400 

21,200 

21,000 

21.OOO 

20,500

20,30O 

20,400 

20,600 

19,600 

19,200

22,200 

2O,8OO 

17,300 

14,900 

13,500

13,100 

14,300 

13,800 

12,600 

11,300

10,700 

11,100 

10,300 

8,710 

8,260

7,380 

6,960 

6,340 

5,740 

5,360

July

4,810 

4,460 

4,040 

3.72O 

3,490

3,490 

3,490 

3,490 

3,490 

3,260

3,050 

2,910 

3,050 

2,910 

2,650

2,530 

2,410 

2,300 

2,240 

2,300

2,300 

2,140 

1,990 

1,890 

1,890

1,840 

1,740 

1,790 

2,040 

2,140 

1,940

Aug.

1,790 

1,700 

1,660 

1,660 

2,040

4,270 

4,630 

4,290 

3,720 

3,340

3,260 

3,420 

3,420 

3,120 

2,980

2,910 

3,050 

2,840 

2,590 

2,590

2,650 

3,050 

3,640 

3,490 

3,120

2,980 

2,720 

2,590 

2,470 

2,360 

2,240

Minimum Htan

371 1,349 

1,170 1,650 

703 956

310 2,314

540 681 

470 497 

470 550 

890 3,938 

9,170 18,000 

5,360 14,700 

1,740 2,767 

1,660 2,922 

920 1,270

371 4,112

Sept.

2,O9O 

1,990 

1,890 

1,790 

1,740

1,660 

1,610 

1,520 

1,480 

1,390

1,350 

1,270 

1,230 

1,150 

1,110

1,070 

1,070 

1,030 

1,030 

1,000

960 

960 

920 

960 

960

960 

960 

960 

960 

1,030

Runoff in 

acre-feet

82,950 

98 , 200 

58,800

1,675,000

41,880 

28,580 

33,830 

234,300 

1,107,000 

874,400 

170,200 

179,700 

75,570

2,985,000

* Winter discharge measurement made on bhis day.

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Nov. 22 to Dec. 1, Dec. 10, 15-17, Jan. 26-31, Feb. 17-21; discharge 

computed on basis of weather records and records for station near Ferry. Stage-discharge relation 

affected by ice Jan. 10, 11, 13-16, 25, Feb. 1-16, Feb. 22 to Mar. 11.
272 KETTLE 'RIVER BASIN

Myers Creek near Mynoaster, British Columbia 

(International gaging station)

Location.- Water-stage recorder and 4-foot Cippoletti weir, lat. 49°00'00", long. 119°01' 

15", bO feet north of international boundary, a quarter of a mile south of Myncaster, 

British Columbia, and 4? miles downstream from Mary Ann Creek.

Drainage area.-'80 square miles.

Records available.- October 1929 to September 1948 (fragmentary) in water-supply papers 

or ueoiogicai Survey. May 1923 to September 1929 in bulletins of Canadian Department 

of Resources and Development.

Extremes.- Maximum discharge recorded during year, 109 second-feet June 11 (gage height, 

2".91 feet, weir out); minimum recorded, 4.3 second-feet Oct. 4 (gage height, 0.34 foot, 

weir out).

1923-48: 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 maintained by 

Canada under agreement with the United States.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6

7 

8 

9 1 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.0 

5.5 

5.0 

4.8 

5.0

5.2

5.2 

5.7 

6.5 

8.5

8.2 

6.8

a. 8

6.3 

6.5

7.4 

7.9 

8.5 

8.5 

8.2

7.9 

7.9 

7.9 

7.9 

7.9

7.9 

7.9 

7.9 

7.9 

7.9 

7.7

Nov.

8.8 

8.5 

7.1

Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

mber 1-3

lendar year 

ax*y

1 12-30

ter year .......................

Mar. Apr.

8.5 

8.5 

9.0 

13.7

36.3 

36.3 

36.3 

36.4 

36.4

36.4 

36.5 

36.5 

36.5 

36.6

36.6 

36.7 

36.7 

36.7 

34.1

Secondfoot-days

218.2 

24.4

r

584.7 

1,785.3 

2,270.8 

786.8 

670.6 

389.8

-

May

24.8 

19.7 

22.8 

35.9 

28.9

31.1

36.3 

33.3 

36.7 

38.2

39.4 

42.2 

48.8 

48.0 

45.1

45.1 

52 

58 

62 

67

74 

80 

82 

89

87

89 

92 

96 

97 

95 

89

Maximum

8.5

-

36.7 

97 

102 

48.4 

54 

14.3

-

June

85 

80 

77 

83 

76

71 

67 

61 

59 

86

102 

102 

95 

92

87

91 

95 

93

85 

82

82 

77 

71

66, 63'

58 

54 

48.0 

43.4 

39.4

July

36.3 

34.1 

48.4 

30.4 

33.0

37.5 

34.1 

.33.7 

30.0 

28.2

26.8 

24.8 

28.2 

26.1 

24.4

22.5 

21.2 

22.8 

24.8 

24.1

20.6 

18.7 

18.1 

17.8 

16.9

16.0 

17.8 

20.6 

18.7 

15.4 

14.8

Minimum

4.8

- j

8.5 

19.7 

39.4 

14.8 

11.6 

11.2

-

Aug.

14.8 

15.1 

14.5 

17.8 

27.5

54

46.7 

38.6 

27.5 

15.4

15.4 

16.6 

19.7 

22.2 

25.1

24.8 

24.8 

24.4 

24.1 

24.1

23.5 

23.5 

20.3 

19.0 

17.2

13.7 

11.6 

11.6 

11.8 

12.1 

13.2

Me*n

7.0

- j

30.8 

58.0 

76.0 

25.4 

21.6 

13.0

-

Sept.

13.4 

13.7 

14.3 

14. 0 

14_.0

14.0 

14.3 

14^2 

14.0 

13.9

13.8 

13.6 

13.5 

13.4 

13.2

13.1 

13.0 

12.8 

12.7 

12.6

12.4 

12.3 

12.2 

12.0 

11.9

11.8 

11.6 

11.5 

11.4 

11.2

Runoff In 

acre-feet

433 

48

-

1,160 

3,540 

4,500 

1,560 

1,330 

773

-

Note . - No gage-height record Oct. 16-27, Apr. 17-28, Aug. 5-26, Sept. 8-30; discharge computed on 

basis of recorded range In stage and records for Boundary Creek near Midway, British Columbia.
COLVILLE RIVER BASIN 273

Colville River at Kettle Falls, Wash.

Location.- Staff gage, lat. 48°36'J long. 118°04', in sec. 29, T. 36 N., R. 33 E., 500 

feet downstream from Stevens County Light & Power Co.'s plant 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 1948. 

Average discharge.- 26 years, 254 second-feet.

Extremes.- Maximum discharge observed during year, 2,170 second-feet May 14, 15 (gage 

 height, 9.45 feet); minimum'observed, 30 second-feet Dec. 16 (gage height, 4.45 feet).

1922-48: 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, which are fair. Gage read 

twice dally. 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.

Hating tables, water year 1947-48, except period of loe effect

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used June 26 to Aug. 18j

Oct. 1 to Aug. 18 Aug. 19 to-Aug. 18)

4.8 61 6.0 334 8.0 1,290 5.5 149 

5.0 SB 6.5 533 8.5 1,590 5.7 202 

5.2 118 7.0 762 9.5 2,240 6.0 300 

5.5 184 7.5 1,010

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

63 

72 

68 

78 

72

94 

77 

91 

111 

107

120 

128 

118 

114 

109

122 

160 

197 

210 

210

224 

224 

238 

224 

210

197 

1B4 

172 

172 

184 

184

Nov.

197 

197 

197 

210 

197

197 

197 

184 

184 

184

184 

184 

1B4 

184 

1B4

1B4 

184 

172 

172 

172

172 

160 

160 

160 

160

184 

160 

160 

160 

138

Dec.

172 

160 

149 

160 

160

160 

160 

160 

160 

73

81 

160 

160 

160 

160

80 

160 

184 

210 

238

238 

238 

210 

210 

210

197 

197 

197 

197 

184 

184

Jan.

184

184 

197 

224 

224

224 

224 

224 

224 

*224

210 

138 

109 

120 

130

140 

120 

130 

130 

130

130 

130 

140 

150 

140

120 

110 

100 

100 

100 

100

Feb.

100 

100 

105 

105 

105

110 

90 

80 

100 

100

100 

100 

100 

105 

115

100 

130 

300 

334 

352

370 

428 

*428 

408 

352

334 

334 

352 

334

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1947

ter year 1947-48 .......................

Mar.

370 

389 

370 

334 

317

300 

300 

300 

284 

268

268 

268 

253 

253 

253

253 

268 

268 

268 

268

268 

284 

300 

317 

317

334 

334 

352 

389 

428 

448

Apr.

448 

469 

533 

577 

577

577 

577 

577 

577 

577

577 

577 

577 

577 

577

577 

715 

908 

1,010 

1,120"

1,180 

1,290 

1,410 

1,410 

1,470

1,530 

1,410 

1,350 

1,290 

1,350

Second - 

foot-days

4,534 

5,362 

5,369

73,838

4,810 

6,071 

9,623 

26,394 

54,060 

31,058 

14,486 

7,996 

5,441

175,204

May

1,350 

1,350 

1,350 

1,470 

1,590

1,650 

1,770 

1,770 

1,890 

2,030

2,100 

2,100 

2,030 

2,170 

2,170

2,100 

1,960 

1,900 

1,860 

1,820

1,750 

1,700 

1,710 

1,700 

1,650

1,600 

1,560 

1,520 

1,500 

1,500 

1,440

Maximum

238 

210 

238

668

224 

42 B 

448 

1,530 

2,170 

1,380 

762 

334 

202

2,170

June

1,380 

1,300 

1,240 

1,200 

1,180

1,160 

1,120 

1,050 

997 

946

908 

928 

971 

976 

933

971 

1,080 

1,110 

1,120 

1,050

1,010 

958 

958 

1,010 

1,010

95B 

958 

908 

858 

810

July

762 

668 

668 

622 

577

622 

622 

622 

577 

577

533 

533 

512 

490 

469

42B 

40B 

408 

389 

389

370 

352 

352 

334 

317

317 

300 

317 

334 

317 

300

Minimum

63 

138 

73

33

100 

80 

253 

448 

1,350 

810 

300 

208 

164

63

Aug.

300 

284 

300 

300 

334

317 

300 

284 

268 

268

253 

268 

268 

268 

253

253 

253 

238 

232 

226

226 

232 

232 

239 

245

245 

239 

226 

220 

217 

208

Mear

146 

179 

173

202

155 

209 

310 

.880 

1,744 

1,035 

467 

258 

181

479

Sept.

202 

202 

196 

188 

185

188 

185 

185 

180 

177

180 

177 

174 

174 

172

164 

164 

166 

169 

174

172 

169 

174 

172 

182

182 

188 

196 

202 

202

Runoff lr 

acre -feet

8,990 

10,640 

10,650

146,400

9,540 

12,040 

19.09C 

52,350 

107,200 

61,600 

28,730 

15,860 

10,790

347,500

* Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by Ice Jan.14 to Feb. 17.
274 COLVILLE RIVER BASIN

Mill Creek near Colville, Wash.

Location.- Water-stage recorder, lat. 48°i!4 l 55", long. 117°51'00", in lot 3, NWtr sec. 35, 

T. 3b N., R. 39 E., 3 miles northeast of Colville and 5 miles downstream from North 

Pork. Datum of gage is 1,964.3 feet above mean sea level (Stevens County bench mark, 

subject to correction to datum of 1929).

Drainage area.- 82 square miles.

Records available.- February 1940 to September 1948.

Extremes.- Maximum discharge during year, 538 second-feet May 4 (gage height, 5.25 

reet); minimum, 9.7 second-feet Jan. 26, Feb. 6, 10.

1940-48: Maximum discharge, that of May 4, 1948; minimum recorded, 3.6 secondfeet Aug. 28, 31, Sept. 1, 1940, but may have been less during period of no gageheight record Feb. 1-4, 1940.

Remarks.- Records good except those for October to March, which are poor. Some diversion above station for irrigation. No regulation.

Revisions (water years).- W 1042: 1940, 1942.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

12

14

14

16

16

14

15

16

24

23

20

20

18

21

37

34

36

32

34

35

30

27

25

23

22

21

22

22

24

26

Nov.

26

27

27

26

24

24

24

24

24

24

23

22

23

23

22

20

20

20

19

2O

18

19

19

19

19

19

19

18

18

18

-

Dec.

18

18

18

17

17

16

16

a!6

a!6

a!6

16

16

17

21

20

19

21

24

28

22

20

19

a!9

a!8

a!8

al8

a!7

al9

a!9

a 2O

a!9

Jan.

a 20

a20

a22

a21

a22

a23

a 23

19

17

17

16

12

13

14

16

13

14

14

14

14

15

16

16

15

14

12

13

13

13

14

14

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ......................

March .........................

April ................ ........

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1947-48 ..........

Feb.

14

14

14

14

13

14

13

13

14

13

16

14

14

14

15

14

18

28

21

18

19

18

,17

16

16

18

18

17

17

_

-

Secondfoot-days

705

648

578

13,935.5

499

464

779

6,155

3,625

1,751

1 jO62

634

26,761

Mar.

16

16

16

15

16

16

17

16

16

16

15

16

16

17

17

17

18

18

18

17

17

23

24

23

25

29

37

53

79

69

71

Maximum

37

27

28

216

23

28

79

449

464

167

84

58

27

464

Apr.

70

78

89

77

74

67

63

63

67

71

75

70

69

73

91

198

321

338

347

365

402

449

420

4O2

356

312

271

255

292

330

-

Hay

296

279

292

464

374

402

411

411

402

365

35B

356

44O

392

356

338

3 3O

33O

304

296

287

279

304

279

255

239

224

209

209

202

180

Minimum

12

18

16

7.3

12

13

15

63

180

8O

37

24

19

12

June

167

155

155

160

147

132

123

116

107

113

120

140

113

102

97

130

161

130

116

109

111

108

122

123

M3

103

97

90

85

80

-

Mean

22.7

21.6

18.6

38.2

16.1

16.0

25 1

205

318

121

56*5

34.3

21.1

73.1

July

76

73

69

66

78

84

77

79

69

64

63

61

57

55

53

51

49

48

50

53

48

45

42

41

39

37

38

59

48

41

38

Per 

square 

mile

0.277

.263

.227

.466

1 Qft . J.atJ

.195

.306

2.50

3.88

1.48

.689

.418

.257

.891

Aug.

38

45

38

46

58

45

42

39

37

36

36

37

36

33

33

32

30

29

29

29

30

29

32

54

30

29

28

27

26

25

24

Sept.

24

23

23

22

22

22

22

21

21

20

20

20

19

19

19

20

20

2O

19

19

19

20

21

22

21

22

27

24

22

21

Runoff

Inches

0.32

.29

.26

6.31

.23

.21

.35

2 . 79

4.47

1.64

.79

.48

.29

12.12

Acre-feet

1,400

1,290

1,150

27,660

99O

920

1,550

12,21O

19,560

7,19O

3,470

2,110

1,260

53,100

a Ho gage-height record; discharge computed on basis of records for Asotln Creek near Asotln and 

Little Spokane River at Dartford.

Kote.- Figures ,of dally discharge June 1 to Aug. 31 supersede those published in Water-Supply 

Paper 1O8O, "Floods of May-June 1948."
SPOKANE RIVER BASIN 

Coeur d'Alene River near Prifhard, Idaho

275

Location.- Staff gage, lat. 47°38 I , long. 115°59', in lot 7, sec.32, T. 50 N., R. 4 E. , 

0.2 mile downstream from Beaver Creek and if miles southwest of Prichard.

Drainage area.- 596 square miles.

Records available.- August 1944 to September 1948.

Extremes.- Maximum discharge observed during year, 11,300 second-feet May 21 (gage height, 

9.24 feet); minimum observed, 178 second-fest Oct. 1 (gage height, 1.73 feet).

1944-48: Maximum daily discharge, 16,000 second-feet Dec. 15, 1946, computed on 

basis of records for stations at Enaville and near Cataldo; minimum observed, 90 

second-feet Sept. 13, 1944 (gage height, 1.00 foot).

Remarks.- Records good except those for periods of ice effect or doubtful or no gageheight record, which are poor. Gage read once or twice daily. No diversion above 

station.

Rating table, water year 1947-48, except period of ice effect 

(gage height, in feet, and discharge, in aecond-feet)

1.7 168 3.5 1,160 7.0 5,790 

2.0 273 4.0 1,590 8.0 8,030 

2.5 482 5.0 2,700 9.2 11.2OO 

2.9 695 6.0 4,060

Discharge, in second-feet, water year October 1947 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.

178 

243 

316 

285 

277

277

232 

285 

285 

285

308 

277 

262 

243 

a240

618 

744 

a950 

al,500 

2,340

2,440 

2,000 

1,620 

al,400 

1,120

a960 

848 

758 

a720 

716 

716

Nov.

730 

a735 

a730 

a750 

a740

a720 

a70o 

a90O 

al,050 

al,040

al.OOO 

936 

944 

944 

864

751 

716 

689 

653 

618

586 

545 

545 

545 

596

618 

653 

772 

788 

802

Dec.

832 

788 

758 

716 

677

653 

618 

608 

575 

555

545 

525 

516 

618 

586

555 

586 

677 

1,100 

1,120

1,020 

944 

788 

744 

702

653 

618 

618 

608 

575 

520

Jan.

565 

653 

706 

653 

618

677 

2,290 

3,140 

2,510 

2,000

1,750 

1,380 

el, 250 

el, 060 

e960

e900 

e840 

e790 

e760 

*758

702 

730 

702 

665 

565

545 

a540 

a480 

a490 

a560 

a620

Feb.

a560 

a470 

a410 

a450 

a5OO

a420 

a410 

a460 

a450 

a420

a370 

a380 

a400 

a410 

b450

b460 

b540 

716 

864 

832

716 

788 

944 

880 

818

1,060 

1,530 

1,440

1,180

Month SecondMonth foot-days

Octc 

Hove 

Dece

Ca

Jami 

Febt 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

ffa

lendar year 194'1 47

........................... 23

...................... ... 6

.......................... 2

ember .....................

3,443 

2,660 

1,398

3,761

0,859 

9,328 

3,891 

6,260 

2,710 

9,570 

0,420 

1,877 

6,977

ter year 1947-48 .......... 589,393

Mar.

 1,060 

944 

864 

702 

689

677 

677 

653 

618 

575

596 

545 

545 

555 

565

535 

535 

545 

535 

545

545 

653 

689 

716 

788

864 

896 

1,020 

1,530 

1,820 

1,410

Maximum

2,440 

1,050 

1,120

6,030

3,140 

1,530 

1,820 

11,000 

11,000 

4,270 

1,020 

516 

269

11,000

Apr.

1,620 

1,720 

2,580 

2,700 

2,460

2,110 

1,830 

1,620 

1,580 

1,620

1,530 

1,420 

1,350 

1,300 

1,310

1,930 

7,670 

10,200 

7,720 

7,310

8,660 

11,000 

9,910 

7,080 

6,410

4,750 

4,210 

3,630 

3,910 

5,120

May

4,850 

4,210 

3,740 

4,150 

4,210

4,270 

7,080 

7,200 

6,630 

5,990

5,400 

4,210 

6,670 

7,380 

6,200

5,030 

7,620 

7,600 

6,720 

9,290

11,000 

10,100 

9,290 

10,500 

9,810

9,290 

8,780 

8,280 

6,740 

5,790 

4,680

Minimum

178 

545 

516

175

480 

370 

535 

1,300 

3,740 

1,100 

460 

277 

212

178

June

4,270 

4,060 

3,850 

4,060 

3,910

3,430 

3,220 

2,960 

2,700 

2,700

2,460 

2,270 

1,790 

1,920 

1,720

1,720 

2,340 

2,270 

2,070 

1,920

1,820 

1,660 

1,530 

1,400 

1,370

1,350 

1,310 

1,220 

1,170 

1,100

Mean

756 

755 

690

1,298

995 

666 

771 

4,209 

6,862 

2,319 

659 

383 

233

1,610

19 -e

July

1,020 

976 

928 

864 

832

788 

772 

788 

716 

653

630 

618 

596 

575 

555

535 

525 

506 

506 

716

788 

618 

555 

535 

496

487 

460 

535 

716 

596 

535

Per 

square 

mile

1.27

1.27 

1.16

2.18

1.67 

1.12 

1.29 

7.06 

11.5 

3.89 

1.11 

.643 

.391

2.70

Aug.

496 

496 

516 

487 

468

450 

442 

442 

407 

416

433

416 

398 

433 

390

365 

348 

340 

324 

324

340 

324 

340

332 

2?2

332

324 

388 

292 

285 277

Sept.

269 

261 

254 

247 

247

247 

247 

247 

240

232

232 

232 

226 

218 

212

212 

212 

218 

212 

212

212 

212 

226 

247 

232

226 

232 

247 

240 

226

Runoff

Inches

1.46 

1.41 

1.34

29.57

1.93 

1.21 

1.49 

7.88 

13.27 

4.34 

1.27 

.74 

.44

36.78

Acre feet

46,500 

44,950 

42,440

939,700

61,210 

38,340 

47,390 

250,400 

421,900 

138,000 

40,500 

23,560 

13,840

1,169,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on baaia of weather recorda and reeoria for other Coeur 

d'Alene River stationa.

b Stage-discharge relation affected by ice.

e Gage reading in error or not representative of mean for day; diacharge compute! on baaia of 

weather recorda and recorda for other Coeur d'Alene River stationa.
276 SPOKANE RIVER BASIN

Coeur d'Alene River at Enaville, Idaho

Location.- Water-stage recorder, lat. 47°34', long. 116°15', in W$ sec. 30, T. 49 N., R.

 a K.," 800 feet upstream from highway ibridge, a quarter of a mile nprtilwest of Enaville 

post office, 1.1 miles upstream from South Fork, and 3.5 miles downstream from North 

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. S. Geol. Survey Bull. 567, 

p. 82).

Drainage area.- 895 square miles.

Records available.- October 1939 to September 1948. March 1911 to April 1913 (fragmentary

 records collected at site a quarter of a mile downstream, published as North Pork of 

Coeur d'Alene River at Enaville).

Extremes.- Maximum discharge during year, 16,900 second-feet Apr. 22 (ga&3 height, 70.78

 i'eet), from rating curve extended above 13,000 second-feet by logarithmic plotting; 

minimum, 258 second-feet Oct. 1 (gage height, 60.50 feet).

1939-48: Maximum discharge, 28.KX)' 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; minimum 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.- Records good except those for periods of no gage-height record, which are fair, 

wo appreciable diversion or regulation above station.

Discharge in second-feet, water year October 1947 to September 1918

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

258 

280 

412 

476 

428

408 

377 

396 

432 

441

485 

158 

420 

384

377

f561 

al.OOO 

al,600 

f2,130 

2,970

3,280 

3,000 

2,470 

2,060 

1,700

1,470 

1,320 

1,220 

1,170 

1,170 

1,180

Nov.

1,180 

1,200 

1,180 

1,240 

1,220

1,180 

1,170 

1,590 

1,870 

1,850

1,780 

1,660 

1,640 

1,630 

1,480

1,400 

al,250 

al,150 

al,050 

al.OOO

a950 

a900 

904

883 

883

1,030 

1,220 

1,360 

1,400 

1,390

Dec.

1,410 

1,350 

1,290 

1,240 

1,170

1,130 

1,080 

1,050 

1,010 

967

938 

883 

910 

1,060 

1,040

996 

1,130 

1,600 

2,460 

2,430

2,090 

1,820 

1,590 

1,430

1,310

1,220 

1,140 

1,170 

1,140 

1,110 

al,050

Jan.

1,090 

1,320 

1,570 

1,490 

1,360

1,850 

4,560 

6,020 

4,590 

3,620

3,060 

a2,300 

a2,000 

al,850 

al,700

al,550 

al,500 

al,450 

1,380 

1,300

1,250 

1,270 

1,220 

1,150 

1,030

904 

876 

805 

850 

982 

1,020

Month

Goto 

Nove 

Dece

Ca

Janv 

Febr 

Marc 

Apr! 

May 

June 

Julj 

Augli 

Sept

We

lendar year 1947 

ary

1 .........................

ember .....................

ter year 1947-48 ..........

Feb.

946 

824 

725 

780 

870

749 

737 

818 

796 

749

640 

651 

708 

731 

786

805 

938 

1,280 

1,550 

1,520

1,380 

1,650 

2,100 

1,940 

1,820

2,610 

3,460 

2,930 

2,450

Secondfoot-days

34,333 

38,640 

40,214

707,719

56,917 

37,945 

48,590 

197,070 

299,160 

91,570 

31,119 

8,854 

10,960

905,372

Mar.

2,200 

1,900 

1,720 

1,510 

1,420

1,390 

1,360 

1,300 

1,220 

1,080

1,060 

1,130 

1,110 

1,070 

1,040

1,010 

1,030 

1,090 

1,050 

1,000

1,000 

1.730 

2,190 

1,980 

1,890

1,810 

1,760 

1,930 

2,620 

3,060 

2,930

Maximum

3,280 

1,870 

2,460

7,450

6,020 

3,460 

3,060 

15,800 

14,100 

5,620 

1,480 

897 

416

15,800

Apr.

?.760 

3,030 

4,530 

4,700 

4,140

3,590 

3,120 

2,770 

2,680 

2,680

2,670 

2,530 

2,350 

2,260 

2,390

3,550 

9,190 

15,800 

12,500 

11,300

12,400 

15,600 

15,000 

11,700 

9,980

8,080 

6,690 

5,440 

5,990 

7,650

Hay

7,180 

6,040 

5,300 

5,870 

6,350

6,520 

9,600 

11,100 

10,200 

8,840

7,980 

8,060 

9,280 

10,900 

8,950

7,940 

10,100 

10,900 

9,280 

11,100

14,100 

13,600 

12,600 

14,100 

13,700

13,000 

12,000 

11,300 

9,510 

7,540 

6,220

Minimum

258 

883 

883

250

805 

640 

1,000 

2,260 

5,300 

1,540 

731 

432 

330

258

June

5,620 

5,250 

5,010 

5,210 

4,870

4,350 

4,030 

3,770 

3,480 

3,330

3,130 

2,980 

2,720 

2,530 

2,350

2,370 

2,960 

2,930 

2,720 

2,490

2,380 

2,280 

2,110 

1,990 

2,010

1,920 

1,860 

1,750 

1,630 

1,540

Mean

1,108 

1,288 

1,297

1,939

1,836 

1,308 

1,567 

6,569 

9,650 

3,052 

1,004 

608 

365

2,474

July

1,480 

1,390 

1,300 

1,230 

1,220

1,180 

1,1*0 

1,130 

1,040 

982

953 

924 

883 

850 

830

8C5 

774 

755 

843 

1,2£0

1,180 

960

s;o

818 

7f2

731 

737 

938 

1,180 

1,OEX> 

9?4

Per 

square 

mile

1.24 

1.44 

1.45

2.17

2.05 

1.46 

1.75 

7.34 

10.8 

3.41 

1.12 

.679 

.408

2.76

Aug.

876 

897 

856 

798 

762

731 

725 

685 

656 

651

640 

634 

a620 

a635 

h602

8570 

8550 

f522 

522 

532

512 

503 

522 

527 

527

508 

489 

471 

454 

445 

432

Sept.

416 

412 

400 

396 

392

a385 

a380 

a380 

a375 

8370

8360 

h362 

8350 

a350 

a350

a350 

a350 

8350 

h344 

a335

a330 

a335 

a350 

a350 

8350

h344

381 

381 

366 

366

Runoff

Inches

1.43 

1.61 

1.67

29.42

2.37 

1.58 

2.02 

8.19 

12.43 

3.81 

1.29 

.78 

.46

37.64

Peak discharge (base, 5,700 sec. -ft.).- Jan. 8 (7 a.m.) 6,'380 sec. -ft.; Apr. 18 12 p.m.

Acre-feet

68,100 

76,640 

79,760

1,404,000

112,900 

75,260 

96,380 

390,900 

593,400 

181,600 

61,720 

37,400 

21,740

1,796,000

) 16,800

sec.-ft.; Apr. 22 (7 p.m.) 16,900 sec.-ft.; Apr. 30 (4 p.m.) 7,840 sec.-ft.; May 8 (12:30 a.m.) 

11,400 sec.-ft.; May 14 (10:30 a.m.) 11,300 sec.-ft.; May 21 (1 o.m.) 14,600 sec.-ft.

a No gage-height record; discharge computed on basis of records for stations nea- Cataldo ana near 

Prichard.

f Computed from partly estimated gage-height record.

h Computed from staff-gage reading.
SPOKANE RIVER BASIN 2 ' 7 

Coeur d'Alene River near Cataldo, Idaho

Location.- Water-stage -recorder, lat. 47°34 I , long. 116°18 I , in sec. 26, T. 49 H., R. 1 

E., Ij 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 1948.

Average discharge.- Maximum discharge during year, 20,600 second-feet Apr. 22 (gage height, 

4«.U3 reet); minimum, 348 second-feet Oct. 2 (gage height, 38.24 feet).

1911-12, 1920-48: 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. No appreciable diversion or regulation above station.

Cooperation.- Water-stage recorder graph and eight discharge measurements furnished by 

Washington Water Power Co.

Discharge, in second feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

357 

385 

595 

679 

658

' 630 

588 

644 

686 

700

796 

788 

716 

672 

637

916 

1,530 

2,030 

2,780 

3,620

3,840 

3,530 

2,930 

2,410 

2,070

1,870 

1,700 

1,540 

1,490 

1,440 

1,470

Nov.

1,460 

1,480 

1,480 

1,540 

1,500

1,480 

1,460 

2,020 

2,390 

2,260

2,240 

2,130 

2,140 

2,090 

1,940

1,780 

1,650 

1,580 

1,470 

1,390

1,320 

1,220 

1,160 

1,120 

1,110

1,460 

1,840 

1,960 

1,930 

1,870

Dec.

1,880 

1,780 

1,720 

1,680 

1,580

1,530 

1,460 

1,400 

1,340 

1,270

1,230 

1,150 

1,170 

1,350 

1,370

1,310 

1,470 

2,090 

2,870 

2,830

.2,450 

2,260 

2,080 

1,860 

1,700

1,600 

1,530 

1,540 

1,520 

1,440 

1,310

Jan-.

1,400 

1,780 

2,060 

1,960 

1,780

2,700 

7,160 

8,650 

6,650 

5,190

4,310 

3,530 

2,880 

2,630 

2,430

2,200 

2,140 

2,060 

1,950 

*1,820

1,740 

1,750 

1,690 

1,600 

1,420

1,100 

958 

b950 

b950 

1,150 

1,180

Month

Octc 

Nove 

Decs

Ca

Janu 

Febi 

Marc 

Apn 

Hay 

June 

Julj 

Augi 

Sept

WE

mber ......................

lendar year 1947 .........

ary

ember .....................

iter year 1947-48 ..........

Feb.

1,150 

b950 

b860 

940 

1,020

b880 

b850 

976 

932 

868

b750 

b760 

804 

820 

1,030

994 

1,250 

1,720 

2,000 

1,860

1,710 

2,250 

2,710 

2,470 

*2,350

3,800 

4,710 

4,000 

3,210

Secondfoot-days

44,697 

50,470 

51,770

939,548

79,768 

48,624 

61,330 

251,910 

395,280 

132,360 

46,880 

27,830 

15,058

1,205,977

Mar.

2,780 

2,530 

2,220 

1,940 

1,810

1,730 

1,700 

1,640 

1,530 

1,310

1,270 

1,370 

1,340 

1,270 

1,230

1,190 

1,200 

1,320 

1,260 

1,180

1,160 

2,330 

2,940 

2,580 

2,490

2,370 

2,250 

2,460 

3,360 

3,890 

3,680

Maximum

3,840 

2,390 

2,870

9,820

8,650 

4,710 

3,890 

19,500 

18,300 

8,420 

2,170 

1,340 

609

19,500

Apr.

3,420 

3,780 

5,590 

5,810 

5,120

4,460 

3,900 

3,480 

3,360 

3,380

3,340 

3,140 

2,920 

2,780 

2,970

4,560 

11,400 

19,400 

16,300 

14,800

16,200 

19,500 

18,700 

15,200 

13,200

11,000 

8,800 

7,480 

8,050 

9,870

May

9,300 

8,010 

7,220 

7,930 

8,290

8,490 

12,100 

13 , 900 

13,000 

11,400

10,400 

10,400 

12,000 

13,800 

11,600

10,700 

13,100 

14,000 

12,400 

14,700

18,300 

18,200 

16,500 

18,000 

18,100

17,600 

16,300 

15,800 

13,500 

11,000 

9,240

Minimum

357

1,110 

1,150

320

950 

750 

1,160 

2,780 

7,220 

2,260 

1,090 

630 

440

357

June

8,420 

7,870 

7,500 

7,570 

7,040

6,300 

5,880 

5,470 

5,080 

4,820

4,580 

4,290 

3,910 

3,630 

3,380

3,430 

4,060 

4,020 

3,760 

3,490

3,340 

3,200 

3,010 

2,850 

T, 840

2,760 

2,690 

2,530 

2,380 

2,260

Mean

1,442 

1,682 

1,670

2,574

2,573 

1,677 

1,978 

8,397 

12,750 

4,412 

1,512 

898 

502

3,295

July

2,170 

2,050 

1,940 

1,850 

1,820

1,760 

1,720 

1,670 

1,550 

1,480

1,450 

1,400 

1,340 

1,290 

1,260

1,240 

1,200 

1,160 

1,330 

1,880

1,790 

1,490 

1,320 

r,250 

1,150

1,090 

1,090 

1,420 

1,760 

1,560 

1,400

Per 

square 

mile

1.18 

1.38 

1.37

2;11

2.11

1.37 

1.62 

6.88 

10.5 

3.62 

1.24 

.736 

.411

2.70

Aug.

1,320 

1,340 

1,280 

1,190 

1,120

1,090 

1,070 

1,020 

985 

985

967 

949 

908 

916 

867

844 

820 

804 

780 ''88

756 

740 

756 

756 

756

724 

693 

672 

658 

637 

630

Sept.

609 

595 

581 

567 

548

536 

530 

524 

518 

506

500 

488 

482 

476 

464

464 

464 

464 

452 

446

440 

446 

476 

476 

476

476 

512 

524 

512 

506

Runoff

Iroh.es

1.36

1.54 

1.58

28.64

2.43 

1.48 

1.87 

7.68 

12.05 

4.03 

1.43 

.85 

.46

36.76

Acre-feet

88,660 

100,100 

102,700

1,864,000

158,200 

96,440 

121,600 

499,700 

784,000 

262,500 

92,990 

55,200 

29,870

2,392,000

Peak discharge (base, 6,210 sec. -ft.).- Jan. 8, 9,480 sec. -ft.; Apr. 18, 20,500 sec. -ft.; Apr. 22

* Winter discharge measurement made on this day. 

t> Stage-discharge relation affected by ice.
278 SPOKANE RIVER BASIN

Coeur d'Alene Lake at Coeur d'Alene, Idaho

Location.- Water-stage recorder, lat. 47°40', long. 116°46', in sec. 24, T. 50 N., R. 4 

w.,. buO feet southwest of south end of Eleventh Street, Coeur d'Alene. Dstum 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 Merriam Building 

(see Water-Supply Paper 882).

Drainage area.- 3,750 square miles.

Records available.- February 1905 to September 1948. April 1903 to February 1905 at 

St. Joe aoom Co. 's gage at mouth of St. Joe River.

Extremes.- Maximum contents during year, 661,600 acre-feet May 30 (elevation, 2,135.95 

reet); minimum, 96,460 acre-feet Feb. 16 (elevation, 2,123.58 feet).

1903-48: 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 plants 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 End 2,140 feet, 

889,000 acre-feet.

Cooperation.- Gage-height record furnished by Washington Water Power Co. 

Elevation, In feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

26.31

26.31

26.29

26.28

26.29

26.29

26.24

26.24

26.23

26.22

26.20

26.19

26.17

26.13

26.10

26.12

26.16

26.24

26.43

26.66

26.66

26.51

26.44

26.54

26.61

26.67

26.68

26.70

26.70

26.72

26.71

Nov.

26.72

26.73

26.75

26.70

26.64

26.61

26.58

26.62

26,86

27.04

27.16

27.27

27.40

27.50

27.57

27.64

27.68

27.67

27.65

27.65

27.65

27.64

27.62

27.59

27.58

27.63

27.82

27.89

27.88

27.87

-

Dec.

27.87

27. S6

27.82

27.69

27.57

27.53

27.56

27.59

27.58

27.52

27.46

27.39

27.31

27.21

27.19

27.21

27.30

27.40

27.29

27.21

27.18

27.12

27.05

26.96

26.99

27.06

27.07

27.05

27.00

26.90

26.81

Jan.

26.77

26.99

26.83

26.91

26.86

26.99

27.54

28.31

28.75

28.83

28.69

28.43

28.11

27.77

27.43

27.16

26.89

26.75

26.60

26.39

26.14

25.96

25.88

25.83

25.77

25.67

25.56

25.46

25.33

25.23

25.14

Feb.

25.06

24.99

24.90

24.71

24.52

24.38

24.23

24.18

24.13

24.04

23.96

23.84

23.72

23.64

23.63

23.61

23.66

23.75

23.82

23.92

24.03

24.23

24.53

24.71

24.80

25.28

25.98

26.36

26.44

-

Mar.

26.38

26.30

26.15

25.98

25.78

25.61

25.43

25.26

25.17

24.89

24.70

24.55

24.43

24.37

24.28

24.14

24.05

24.08

24.08

24.08

24.10

24.23

24.37

24.43

24.48

24.52

24.53

24.54

24.62

24.81

24.99

Apr.

25.10

25.26

25.60

25.96

26.22

26.36

26.40

26.35

26.88

26.21

26.14

26.07

25.99

25.90

25.84

25.86

26.18

27.20

28.14

28.88

29.55

30.24

31.01

31.67

32.12

32.32

32.29

32.08

31.83

31.67

-

May

31.57

31.45

31.27

31.08

30.93

30.82

30.80

31.11

31.58

31.93

32.09

32.13

32.18

32.27

32.40

32.44

32.44

32.54

32.71

32.88

33.12

33.55

34.19

34.81

35.08

35.31

35.56

35.66

35.87

35.94

35.76

June

35.47

35.09

34.71

34.39

34.06

33.71

33.32

32.95

32.56

32.16

31.82

31.51

31.17

30.82

30.44

30.10

29.81

29.51

29.21

28.94

28.72

28.46

28.18

27.93

27.68

27.46

27.22

26.95

26.67

26.47

-

July

26.59

26.75

26.93

27.13

27.34

27.51

27,65

27.76

27.84

27.92

27.94

27.96

27.93

27.94

27.95

27.94

27.94

27.95

27.96

28.02

28.01

27.97

27.95

27.93

27.91

27.93

27.96

27. 9T

28.00

27.96

27.96

Aug.

27.95

27.95

27.94

27.98

27.93

27.91

27.90

27.94

27.98

27.98

27.96

27.96

27.99

27.97

27.97

27.93

27.96

27.98

27.97

27.96

27.95

27.96

27.98

27.99

27.96

27.97

27.98

27.98

27.99

28.01

28.00

Sept.

27.97

27.97

27.95

27.91

27.91

27.94

27.93

27.92

27.92

27.92

27.95

27.96

27.97

27.97

27.96

27.92

27.90

27.93

27.96

27.98

27.97

27.96

27.93

27.88

27.89

27.97

27.98

27.94

27.91

27.87

-

Kote.- Add 2,100 feet to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1947 to September 1948

Date

Oct. 31. ....................

Dec. 31.. ...................

Calendar year 1947 ........

Water year 1947-48. .......

Elevation 

(feet)t

2,126.77

-

-

Contents 

(acre-feet)

187,000

-

-

Change In contents 

during month 

(acre -feet)

-44,800

-36,400

+59,200

t Elevation at 12 p.m.
SPOKANE RIVER BASIN 279

Spokane River at Post Falls, Idaho

Location.- Water-stage recorder, lat. 47°42,T , long. 116°58', in sec. 4, T. 50 N. , R. 5 

W., 1,500 feet downstream from power plant of Washington Water Power Co., 3,300 feet 

downstream from intake of Spokane Valley Farms Co.'s canal, and 1 mile west of Post 

Falls. Datum of gage is 2,000.00 feet above mean sea level, referenced to same datura 

as gage on Coeur d'Alene Lake at Coeur d'Alene (see preceding page).

Drainage area.- 3,880 square miles.

Records available.- January 1913 to September 1948.

Average discharge.- River only, 35 years, 5,838 second-feet; river, Spokane Valley Farms 

Co.'s canal, and Rathdrum Prairie Canal, 35 years, 5,923 second-feet.

Extremes.- Maximum discharge during year, 40,300 second-feet May 30 (gage height, 78.98 

reet) ; minimum, 159 second-feet Sept. 24 (gage height, 64.32 feet); minimum daily, 

168 second-feet Sept. 6.

1913-48: 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, 139 second-feet Aug. 11, 1947 (gage 

height, 64.20 feet); minimum daily, 141 second-feet Aug. 10, 1947.

Remarks.- Records good. Spokane Valley Farms Co 's canal (see p. 292) and Rrthdrum

Prairie Canal (see p. 291) divert water above gage for irrigation. Flow partly regulated, by Coeur d'Alene Lake (see preceding page).

Cooperation.- Water-stage recorder graph and three discharge measurements furnished by 

Washington Water Power Co.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

36 

27 

28 

29 

30 

31

Oct.

1,410 

1,670 

1,780 

1,050 

615

1,240 

1,650 

1,700 

1,700 

1,900

1,900 

1,900 

2,000 

1,950 

1,950

2,250 

2,180 

2,150 

2,150 

3,690

9,750 

9,890 

6,040 

2,950 

2,930

2,820 

3,050 

3,080 

3,150 

3,140 

3,160

Nov.

3,180 

2,700 

3,830 

4,990 

4,470

4,130 

4,260 

3,800 

2,800 

3,200

3,200 

3,200 

3,200 

3,200 

3,200

3,100 

3,600 

4,050 

3,850 

3,300

3,300 

3,200 

3,200 

3,200 

3,000

2,900 

3,300 

6,000 

6,000 

5,700

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri

Man

June 

July 

Augu 

Sept

Wat

endar year 1947

ember. ..........

er year 1947-48

Dec.

6,100 

6,200 

7,000 

7,700 

6,150

4,4OO 

3,200 

3,700 

4,400 

4,700

4,820 

5,270 

5,520 

5,150 

3,810

3,210 

4,230 

8,940 

11,200 

8,940

8,340 

7,520 

7,080 

6,120 

3,000

3,010 

4,060 

4,450 

5,500 

45,730 

5,340

Jan.

4,900 

5,210 

5,040 

5,690 

5,930

7,790 

12,900 

15,300 

16,400 

16,600

16,300 

15,900 

14,800 

13,700 

11,100

10,800 

i,580 

7,660 

8,440 

9,000

8,690 

6,980 

5,290 

5,250 

5,230

4,770 

4,310 

4,540 

5,120 

4,430 

4,240

Feb.

4,240 

4,640 

5,140 

5,550 

5,000

4,650 

4,6OO 

3,950 

3,730 

3,780

3,800 

3,800 

4,000 

3,840 

3,830

3,480 

3,280 

4,180 

3,260 

3,350

3,180 

4,270 

5,270 

6,020 

6,070

6,780 

8,950 

9,630 

10,400

Mar.

9,410 

9,210 

8,780 

8,540 

8,280

8,080 

7,670 

7,620 

7,220 

6,960

6,500 

6,240 

5,890 

4,310 

5,950

5,690 

4,180 

3,640 

3,640 

3,610

3,830 

4,720 

6,470 

6,320 

6,350

6,220 

6,300 

6,670 

6,520 

6,650 

6,870

Observed

Discharge in 

second-feet

Maximum

9,89C 

6,000 

11,20C

21,800

16,600 

10,400 

9,410 

27,500 

40,2002 

38 , 400 

5,710 

3,550 

1,820

40,200

Minimum

615 

2,700 

3,000

141

4,240 

3,180 

3,610 

7,050 

2,400 

5,680 

255 

204 

168

168

Mean

2,800 

3,702 

5,638

6,208

8,738 

4,920 

6,398 

14,930 

29,410 

21,890 

2,202 

1,515 

785

8,578

Runoff 

in 

acre-feet

172,200 

220,300 

346,700

4,494,580

537,300 

283,000 

393,400 

888,600 

1,809,000 

1,302,000 

135,400 

93,130 

46,720

6,227,750

Apr.

7,050 

7,760 

8,180 

8,700 

9,320

9,720 

10,400 

10,300 

10,100 

9,980

9,530 

9,100 

9,070 

8,990 

9,320

9,290 

lOjlOO 

12,200 

14,700 

16,700

18,600 

20,700 

23,100 

25,200 

26,600

27,500 

27,400 

26,900 

26,100 

25,400

Bay

25,000 

24 , 300 

24,100 

23,300 

22,700

22,400 

22,500 

23,200 

24,500 

25,800

26,400 

26,600 

26,800 

26,900 

27,300

27,300 

27,400 

27,600 

28 , 200 

28 , 600

29,500 

30,900 

33,000 

35,400 

36,700

37,800 

38,700 

39,200 

39,800 

40,200 

39,700

Diversion 

through

Valley Farms 

Co. 's canal 

and Rathdrura 

Prairie Canal 

(acre-feet)

5 

0 

0

76,293

0 

0 

0 

2,350 

1,908 

9,594 

20,390 

19,880 

7,680

61,807

June

38 , 40O 

37 , 000 

35,600 

34,300 

33,200

32,000 

30,700 

29,300 

27 , 900 

26,400

25,300 

24,500 

23,500 

22,200 

20,800

19,800 

19,000 

18,200 

17,300 

16,200

15,800 

lb,j.OO 

14,400 

13,700 

13,200

12,700 

11,900 

11,500 

11,000 

5,680

July

1,650 

822 

283 

255 

277

618 

1,300 

1,150 

1,390 

1,520

2,130 

3,290 

2,420 

2,170 

2,130

2,120 

1,900 

1,850 

2,130 

2,890

4,390 

3,540 

2,830 

 2,220 

1,200

1,620 

2,400 

3,930 

5,710 

4,590 

3,540

Aug.

3,550 

3,550 

3,400 

2,540 

3,380

2,330 

1,280 

204 

2,150 

1,980

1,990 

1,030 

848 

2,270 

1,370

1,010 

528 

1,270 

1,240 

1,100

539 

748 

1,350 

1,620 

927

706 

832 

816 

463 

1,050 

881

Adjusted for

Runoff 

in 

acre- feet

172,205 

220,300 

346,700

4,570,873

537,300 

283,000 

393,400 

890,950 

1,810,908 

1,311,594 

155,790 

113,010 

54,400

6,209,557

Sept.

803 

1,110 

1,260 

856 

170

168 

753 

764 

761 

733

178 

176 

817 

681 

886

725 

466 

174 

174 

1,130

970 

1,160 

1,060 

766 

176

699 

1,820 

1,480 

1,500 

1,140

diversion

Discharge in 

second-feet

Mean

2,800 

3,702 

5,638

6,313

Q,738 

4,920 

6,398 

14,970 

29,440 

22,050 

2,534 

1,838 

914

8,663

Per 

square 

mile

1

1.63

1

2.23

Runoff

inches

-

22.09

1

30.39

Note.- No gage-height record Oct. 7-16, Nov. 8 to Dec. 10, Feb. 1, 2, 5-8, 11-13; discharge coraputed on basis of records for station at Spokane and records furnished by Washington Water Power' Co. 

for station at Liberty Bridge.

939922 O - 51 - 19
280 SPOKANE RIVER BASIN

Spokane River at Greenacres, Wash.

Location. - Water-stage recorder, lat. 47°40'45", long. 117°10'35", in NW£ sec. 7, T. 25 

W., K. 45 E., 11 miles upstream from Spokane.

Records available.- March to September 1948.

Extremes.- Maximum discharge not determined, probably occurred May 30, during period of no 

gage-height record; minimum not determined, probably occurred Sept. 18 or 19, during 

period of no gage-height record.

Remarks.- Records fair. Some diversions above gage for irrigation. Flow partly regulated 

by Uoeur d'Alene Lake at Post Falls, Idaho.

Discharge, In second-feet, water year October 1947 to September 194F

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

ZQ

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Wo v

June 

July 

Augu 

Sept

Th

her................. .....................

lendar year 

ary

e period ....... ........ ...

Mar.

9,800 

9,400 

9,000 

8,800 

8,400

8,200 

7,600 

7,600 

7,200 

7,000

6,650 

6,310 

6,310 

4,000 

6,140

5,660 

4,330 

3,660 

3,790 

3,660

3,790 

4,480 

6,310 

6,310 

6,310

6,300 

6,480 

6,650 

6,650 

6,820 

7,000

Apr.

7,180 

7,730 

8,300 

9,110 

9,750

10,200 

10,900 

11,100 

10,900 

10,600

10,400 

9,750 

9,750 

9,750 

9,970

9,970 

10,600 

12,600 

15,600 

17,500

19,600 

21,800 

24,000 

26,300 

27,500

28,300 

27,900 

27,500 

26,700 

26,000

Secondfoot-days

200,610 

467,260 

914,700 

686,900 

61,960 

43,110 

21,470

-

May

25,600 

25,200 

24,400 

24,000 

23,300

22 , 900 

22,900 

23,600 

24,800 

26,000

26,300 

26,500 

26,500 

27,000 

27,500

27,500 

27,500 

28,000 

28,200 

29,000

29,500 

31,000 

33,000 

35,000 

36,500

37,000 

38,000 

39,000 

39,500 

40,000 

39,500

Maximum

9,800 

28,300 

40,000 

39 , 000 

5,200 

3,280 

1,670

-

June

39,000 

37,500 

36,800 

35,200 

34,000

33,200 

31,900 

30,300 

29,100 

27,900

26,700 

25,600 

24,800 

23,600 

22,100

21,000 

20,300 

19,300 

18,600 

17,200

16,900 

15,900 

15,300 

14,400 

13,800

13,200 

12,400 

12,100 

11,600 

7,200

July

1,400 

660 

270 

250 

270

560 

1,000 

920 

1,100 

1,200

2., 100 

3,160 

2,380 

1,900 

1,800

1,800 

1,750 

1,500 

1,900 

2,590

4,190 

3,280 

2,700 

2,000 

1,100

1,500 

2,200 

3,530 

5,200 

4,470 

3,380

Minimum

3,660 

7,180 

22,900 

7,200 

250 

200 

170

-

Aug.

3,280 

3,280 

3,280 

2,300 

3,280

2,000 

1,300 

210 

1,600 

1,700

1,600 

1,000 

1,400 

2,020 

1,300

1,000 

450 

1,000 

1,200 

1,000

540 

560 

1,130 

1,530 

1,160

640 

680 

720 

450 

200 

1,300

Mean

6,471 

15,580 

29,510 

22,900 

1,999 

1,391 

716

-

Sept.

800 

900 

1,000 

750 

680

170 

600 

600 

600 

600

180 

180 

650 

600 

800

600 

450 

190 

180 

1,000

900 

1,000 

950 

700 

190

600 

1,670 

1,460 

1,340 

1,130

Runoff In 

acre-feet

397,900 

926,800 

1,814,000 

1,362,000 

122,900 

85,510 

42,590

4,752,000

Note.- No gage-height record Mar. 1-10, 14, 26, May 12 to June 2, July 1-11, 14-19, 24-27, Aug. 4, 

6-13, 15-22, Aug. 26 to Sept. 26; discharge computed on basis of records for nearby stations.
SPOKANE RIVER BASIN 281

Spokane River below Trent Bridge, near Spokane, Wash.

Location.- Water-sbage recorder, lat. 47°41'50", long. 117°14'35", in NE£ sec. 4, T. 25 

N., R. 44 E., half a mile downstream from Trent" Bridge and 9 miles east of Spokane.

Records available.- January to September 1948.

Extremes.- Maximum discharge during period, 40,100 second-feet May 30 or 31 (gage height, 

10.b feet, from high-water mark on gage; minimum, 750 second-feet Sept 26 (gage height, 

4.52 feet).

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. Capacity of 

Coeur d'Alene Lake between elevations 2,120 and 2,140 feet (lake gage datum), 889,000 

acre-feet.

Rating table Jan. 1 to Sept. 30, 1948 (gage height, 

and discharge. In seoond-feet)

In feet,

4.5 4.7' 

5.0 

5.3 

5.6

740

850

1,070

1,400

1,770

6.0 

6.5 

7.0 

7.5 

8.0

2,310

3,040

3,830

4,700

5,650

9.0

10.0

11.0

12.0

13.0

7,800

10,300

13,100

16,000

19,300

14.0

15.5

17.0

18.5

22,800

28,300

34,100

40,100

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

5,000 

5,000 

5,200 

5,400 

5,900

6,600 

12,800 

14,600 

16,000 

16,900

16,400 

15,600 

14,600 

12,900 

11,300

10,200 

7,200 

6,500 

6,910 

6,860

6,920 

6,570 

5,390 

5,310 

5,300

5,030 

4,350 

4,630 

5,110 

4,610 

4,450

Feb.

4,420 

4,460 

5,020 

5,620 

5,240

4,660 

4,590 

3,970 

3,960 

3,940

4.0ZO 

3,880 

4,090 

4,070 

4,110

3,670 

3,460 

4,020 

3,460 

3,480

3,330 

4,210 

4,980 

5,930 

5,950

6,440 

9,000 

10,300 

11,400

Month

Octol 

Novell 

Dec en

Ca]

Janus 

Febri 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Th

Lendar year

s period ............. ..........

Mar.

10,000 

9,760 

9,250 

9,000 

8,750

8,510 

8,030 

8,030 

7,570 

7,170

6,820 

6,530 

6,370 

4,170 

6,220

5,860 

4,600 

3,950 

3,940 

3,820

3,990 

4,570 

6,400 

6,300 

6,350

6,310 

6,400 

6,570 

6,540 

6,700 

6,980

Apr.

7,160 

7,640 

8,330 

9,000 

9,760

10,300 

10,800 

10,800 

10,800 

10,600

10,300 

9,760 

9,760 

9,500 

9,760

9,760 

10,600 

12,500 

15,100 

17,000

18,900 

20,600 

23,500 

25,700 

27,200

28,300 

28,300 

27,600 

26,800 

26,000

Secondfoot-days

259,540 

145,780 

205,460 

462,130 

918,900 

688,900 

87,980 

63,500 

37,695

_

May

25,700 

24,900 

24,600 

24,200 

23,500

23,100 

23,100 

23,800 

24,900 

26,000

26,800 

26,800 

26,800 

27,200 

27,600

27,600 

27,600 

27,900 

28,300 

29,100

29,500 

31,000 

32,900 

35,300 

36,500

37,300 

38,500 

38,900 

39,700 

40,000 

39,800

Maximum

16,900 

11,400 

10,000 

28,300 

40,000 

38,800 

5,700 

4,040 

2,060

-

June

38,800 

37,300 

36,100 

34,900 

33,700

32,900 

31,400 

29,800 

28,700 

27,200

26,400 

25,300 

24,200 

23,100 

22,000

21,000 

20,300 

19,300 

18,600 

17,600

17,300 

16,700 

15,700 

15,100 

14,500

13,900 

13,400 

12,800 

12,200 

8,700

Minimum

4,350 

3,330 

3,820 

7,160 

23,100 

8,700 

1,360 

1,040 

750

-

July

2,840 

2; 090 

1,480 

1,400 

1,360

1,550 

1,980 

2,020 

2,090 

1,880

2,620 

3,880 

3,360 

2,700 

2,740

2,720 

2,420 

2,320 

2,560 

3,360

4,760 

4,050 

3,450 

2,720 

2,080

2,140 

2,490 

4,080 

5,700 

5,140 

4,020

Aug.

4,030 

4,020 

4,040 

2,870 

3,980

2,840 

1,900 

1,280 

2,140 

2,390

2,400 

1,880 

1,800 

2,590 

1,900

 1 , 840 

1,130 

1,520 

1,740 

1,600

1,320 

1,040 

1,610 

2,040 

1,800

1,260 

1,250 

1,260 

1,100 

1,340 

1,580

Mean

8,372 

5,027 

6,628 

15,400 

25,640 

22,960 

2,838 

2,048 

1,256

-

Sept.

1,340 

1,380 

1,640 

1,390 

1,020

825 

1,120 

1,270 

1,260 

1,210

815 

770 

1,230 

1,160 

1,320

1,280 

1,020 

795 

750 

1,300

1,520 

1,440 

1,500 

1,310 

800

890 

2,060 

1,800 

1,820 

, 1,660

Runoff In 

acre-feet

514,800 

289,200 

407,500 

916,600 

1,823,000 

1,366,000 

174,500 

126,000 

74,770

5,692,000

Note.- No gage-height record Jan. 1-18 ; May 30 to June 1 discharge computed on basis of high-water 

mark and records for nearby stations.
282 SPOKANE RIVER BASIN

Spokane River at Spokane, Wash.

Location.- Water-stage recorder, lat. 47°39'30", long. 117°26'50", in sec. 13, T. 25 N.,

FTrTSTE., at Cochran Street in Spokane and half a mile upstream from Latah Creek.

Datum of gage is about 1,700 feet above,mean sea level, subject to correction to

datum of 1929.

Drainage area.- 4,350 square miles. 

Records available.- April 1891 to September 1948. 

Average discharge.- 57 years, 6,714 second-feet. 

Extremes.- Maximum discharge during year, 39,600 second-feet May 31 (gage height, 28.35

reetj; minimum, 391 second-feet Aug. 18 (gage height, 16.48 feet); minimum daily, 954

second-feet Sept. 19.

1891-1948: Maximum discharge, 49,000 second-feet (estimated) May 31, 1894 (see

Water-Supply Paper 532); minimum, 268 second-feet Dec. 28, 1935 (gage height, 16.37

feet); minimum daily, 740 second-feet Sept. 7, 1947. 

Remarks.- Records excellent except those for periods of no gage-height record, which

are good. Spokane Valley Farms Co.'s canal (see p. 292) and Rathdrum Prairie Canal

(see p. 291) divert water above station for irrigation. Flow partly regulated by

Coeur d'Alene Lake (see p. 278} and by pondage at Spokane. 

Cooperation.- Gage-height record collected in cooperation with and one discharge measurement furnished by Washington Water Power Co. 

Revisions (water years).- W 532: 1891-1904.

Rating table, water year 1947-48 (gage height, In feet, and discharge, in second-feet) 

(Shifting-control method used June 1 to Sept. 30)

17.0 780

17.5 1,220

18.0 1,840

18.5 2,620

19.0 3,510

19.5 4,470

20.0 5,510

20.5 6,690

21.0 8,030

22.0 11,100

23.0 14,600

24.0 18,400

25.0 22,810

26.0 27,410

27.0 32,410

28.5 40,500

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,840

2,160

2.3OO

2,200

1,380

1,540

2,220

2,320

2,290

2,520

2,530

2,500

2,560

2,480

2,520

2,750

2,810

2,760

2,810

4,480

9,660

9,700

6,200

3,600

3,620

3,480

3,650

3,650

3,760

3,760

3,780

Nov.

3,720

3,460

3,940

5,000

5,120

4,720

4,230

4,380

3,460

3,430

3,380

3,650

3, 120

3,500

3,760

3,460

3,960

4,310

4,430

3,760

3,800

3,710

3,740

3,340

3,590

3,560

3,750

5,890

6,070

6,100

-

Dec.

6,380

6,230

6,810

7,820

6,940

5,050

3,730

3,950

4,650

4,860

5,140

5,420

5,780

5,310

4,600

4,120

4,250

7,610

11,400

9,100

8,380

6,500

6,230

6,860

4,330

3,190

4,330

4,750

5,410

6,060

5,540

Jan.

5,330

5,370

5,460

5,790

6,440

6,900

13,700

14,700

16,000

16,700

16,400

15,600

14,600

13,300

11,700

10,500

8,700

8,570

9,670

9,340

9,250

8,280

6,040

5,900

5,910

5,580

4,920

5,150

5,540

5,320

4,860

Month

October .................. ....

November ......................

December ....... ..............

Calendar year 1947 .........

January .......................

February ....... ..............

March ............... .........

April .........................

May ................. .........

June .............. ......... .

July ........... ..............

August ......... ..............

September .....................

Water year 1947-48 ..... ....

Feb.

4,950

5,090

5,480

6,060

5,840

5,220

5,220

4,590

4,560

4,500

4,610

4,510

4,650

4,650

4,680

4,240

4,020

4,490

4,260

4,080

3,950

4,620

5,340

6,240

6,380

6,820

8,840

10,100

11,200

_

-

Secondfoot-days

103,830

122, 840

180,730

2,477,804

"80 520

159, 190

217,640

453,490 

901,400

682,300 

103,240

74,900 

45,564

3,325,644

Mar.

10,200

10,000

9,540

9,360

9,080

8,700

8,380

8,660

8,020

7,500

7,240

6,900

6,710

4,820

6,670

6,350

5,360

4,60O

4,540

4,400

4,510

4,810

6,700

6,650

6,600

6,760

6,690

6,830

6,800

7,050

7,210

Maximum

9,700

6,100

11,400

21,600

16,700

11,200

10,200

27,000

39,500

37,900

5,400

4,200 

2,230

39,500

Apr.

7,360

7,820

8,450

9,110

9,800

10,400

10,800

10,900

10,700

10,500

10,400

9,800

9,790

9,660

10,100

10,100

10,700

12,400

14,900

16,400

18,400

20,100

22,300

24,600

26,000

27,000

27,000

26,500

26,000

25,500

-

May

25,000

24,600

24,100

23,700

22,800

22,800

22,300

23,200

24,600

25,500

26,000

26,500

26,500

26,500

27,000

27,000

27,100

27,300

27,800

28,300

29,000

30, 200

32,400

35,000

35 , 700

36,700

37,600

38,300

39,100

39,500

39,300

Minimum

1,380 

3,340

3,190

740

4,860

3,950

4,400

7,360 

22,300

9,300

2,140

1,460 

954

954

June

37 , 900

36,300

35,000

34,000

33,000

32,100

30,900

29.7OO

28,400

27,100

26 , 200

25,300

24,400

23,200

32,000

21,000

20,200

19,400

18,400

17,500

17,200

16,400

15,700

14,900

14,600

13,800

13,500

12,800

12,100

9,300

-

Mean

3 349

4)095

5,830

6,789

9 049

5I489

7,021 

15,120

22^740

3,330

2,416 

1,519

9,086

July

f4,080

3,210

2,540

2,140

2,141

2,140

f2,550

f2,660

2,810

2,460

3,080

4,260

3,820

3,040

3,240

3,130

2,960

2,850

2,960

3,650

4,800

4,280

3,780

3,340

2,820

2,620

2,800

4,140

5,380

5,400

4,160

Per

square 

mile

-

1.56

_

2.09

Aug.

4,200

4.1

4,1

3,3

60

60

30

4,180

3,390

2,6

2,1

3,1

90

40

30

2,850

2,760

2,4

1,9

2,5

80

30

oo

2,410

2,480

1,7

1,6

2,1

80

60

80

2,040

1,850

1,5

1,8

2,3

40

60

20

2,110

1,660

1,7

1,5

1.7

1.4

00

7O

20

60

1,760

Sept.

1,640

1,630

1,900

1,540

1,360

1,140

1,200

1,480

1,580

1,500

1,280

1,010

1,310

1,500

1,470

1,510

1,460

1,020

954

1,350

1,700

1,680

1,760

1,710

1,^40

1,290

1,920

2,23O

2,020

2,180

Runoff

Inches

_

-

21 . 18

_

28.43

Acre-feet

205 900

243)600

358,500

4,914,000

556,400

315,700

431,700

7fifi'nnn

1)353)000

204,800

148,600 

90,370

6,596,000

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Nov. 4 to Dec. 10, Dec. 14 to Jan. 2, Jan. 6-9, Jan. 21 to Feb. 2; 

discharge computed by Washington Water Power Co. from power-plant records.
SPOKANE RIVER BASIN 283

Spokane River below Nine-Mile Dam, near Spokane, Wash.

Location.- Water-stage recorder, lat. 47°46'50", long. 117°32'40", in SW^NEj- sec. 6, T. 26 

N., K7 42 E., half a mile downstream from Washington Water Power Co. Nine-Mile Dam, 

1^ miles upstream from Little Spokane River, and 9j miles northwest of Spokane. Waterstage recorder in temporary structure 1,000 feet upstream used from March to September 

1948.

Drainage area.- 2,320 square miles.

Records available.- March to September 1948.

Extremes.- Maximum discharge during period not determined, occurred about May 24 during

 period of no gage-height record; minimum, 296 second-feet Sept. 14 (gage l-eight, 0.79 

foot); minimum daily, 336 second-feet Sept. 19.

Remarks.- Records good except those for periods of no gage-height record, which are fair.

 Some diversion for irrigation. Regulation by Ooeur d'Alene Lake and by pondage at 

Spokane and at Nine-Mile Dam. Capacity of Coeur d'Alene Lake between elevations 2,120 

and 2,140 feet (lake gage datum), 889,000 acre-feet.

Rating table, Mar. 1 t 

and dis

0.8 

1.0 

1.3 

1.6 

2.0 

2.5

300

400

560

750

1,040

1,460

J Sept, 

Jharge,

3.0 

3.5 

4.0 

5.0 

6.0 

7.0

30, 1948 (gage height, In feet, 

In second-feet)

1,940

2,470

3,060

4,420

6,110

8,150

8.0

9.0

11.0

13.0

15.0

10,500

13,300

20,400

29,400

40,000

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

8 

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

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Th

lendar year

e period ................................

Mar.

11,500 

11,100 

10,800 

10,300 

9,970

9,710 

9,230 

9,220 

8,890 

8,250

7,950 

7,630 

7,470 

5,800 

7,300

7,060 

6,420 

5,570 

5,550 

5,380

5,210 

5,560 

8,500 

8,250 

7,980

8,140 

7,990 

7,960 

7,940 

8,050 

8,250

Apr.

8,360 

8,720 

10,000 

10,600 

11,100

11,300 

11,600 

12,100 

11,600 

11,600

11,200 

10,800 

10,600 

10,500 

10,400

10,800 

11,500 

13,900 

16,200 

18,100

20,000 

21,600 

24,200 

26,600 

28,200

29,000 

29,000 

28,500 

28,000 

27,000

Secondfoot-days

248,930 

493,080 

992,400 

735,500 

119,590 

86,256 

54,675

-

May

26,600 

26,100 

25,600 

25 , 600 

24,700

24,700 

24,200 

25 , 200 

29,400 

29,900

29,400 

29,400 

29,900 

29,400 

29,400

29,000 

29,400 

29,400 

29,900 

30,900

32,000 

33,500 

40,000 

44,000 

42,000

39,000 

39,300 

40,500 

41,200 

41,800 

41,000

Maximum

11,500 

29,000 

44,000 

40,000 

6,210 

4,770 

2,710

-

June

40,000 

39,000 

37,500 

36,000 

35,000

34,000 

33,000 

32,000 

30,500 

29,000

28,000 

27,000 

26,000 

25,000 

23,500

23,000 

22,000 

21,000 

20", 000 

19,300

19,000 

17,800 

17,000 

16,600 

16,200

15,200 

14,600 

13,900 

13,300 

11,100

July

5,340 

3,920 

3,540 

2,750 

3,030

3,560 

3,200 

3,620 

3,450 

2,960

3,610 

4,230 

4,590 

3,450 

3,510

3,720 

3,610 

3,400 

3,110 

4,080

4,710 

4,640 

4,400 

3,530 

3,430

3,050 

3,340 

3,930 

4,820 

6,210 

4,850

Minimum

5,210 

8,360 

24,200 

11,100 

2,750 

946 

336

-

Aug.

4,540 

4,770 

4,750 

4,070 

4,320

3,840 

2,470 

2,670 

2,400 

3,100

3,230 

3,330 

2^600 

2,640 

2,920

2,890 

2,120 

1,850 

2,510 

2,410

2,380 

1,710 

2,280 

2,620 

2,480

1,470 

1,860 

1,340 

946 

2,610 

2,130

Mean

8,030 

16,440 

32,010 

24,520 

3,858 

2,782 

1,822

'

Sept.

1,610 

2,200 

2,500 

1,470 

1,400

985 

1,900 

2,050 

2,420 

2,570

1,720 

432 

1,790 

1,410 

1,640

1,720 

2,470 

1,500 

336 

1,760

1,620 

2,110 

2,130 

2,570 

1,840

932 

2,710 

2,310 

2,410 

2,160

Runoff In 

acre-feet

493,700 

978,000 

1,968,000 

1,459,000 

237,200 

171,100 

108,400

5,415,000

Note.- Ho gage-height record Mar. 1-3, Apr. 25, 26, May 23 to June 23, July 24-30, Aug. 

discharge computed on basis of 3 discharge measurements and records for nearby stations.
284 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 K., at Long Lake power plant, 12 miles north of Reardan. Datum of gage is l,300uOO 

feet above mean sea level, subject to correction to datum of 1929.

Drainage area.- 6,100 square miles.

Records available.- April 1939 to September 1948.

Extremes.- Maximum discharge during year, 49,400 second-feet May 24 (gage height, 78.66 _ 

feet); minimum not determined, occurred sometime during period of backwater from Little 

Falls power plant; minimum daily, 214 second-feet Aug. 15 (determined frcm power-jpletnt 

records).

1939-48: Maximum discharge recorded, that of May 24, 1948; minimum recorded, 115 

second-feet Oct. 6, 1939 (gage height, 57.66 feet), but may have been lers sometime 

during periods of backwater; minimum daily, 144 second-feet Sept. 15, 1946, Aug. 24, 

1947 (determined from power-plant records).

Remarks.- Water diverted abovp "totion for irrigation. Flow partly regulated by Coeur

d 1 Alene Lake (see p.278). DiurnPi fluctuatiorj and some regulation caused by power plant 

at iiong Lake. Capacity of Lon,g Laice oetween elevacions 1,51V; and T.,531 reet, 79,fc>0u 

acre-feet.

Cooperation.- Record of discharge and gage heights for Long Lake furnished ty Washington 

water rower Co.

Discharge, In second-feet, water year October 1947 to September 194">

Da;

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Dot.

3,160 

3,530 

3,350 

1,740 

848

3,350 

3^420 

3,970 

3,720 

4,000

1,820 

288 

3,600 

3,200 

3,630

3,960 

4,180 

4,380 

3,890 

4,940

7,470 

9,360 

8,580 

5,050 

5,180

6,910 

4,810 

5,400 

5,200 

4,930 

4,860

.Nov.

4,900 

3,800 

4,740 

4,87O 

5,050

5,170 

5,060 

4,890 

3,940 

4,970

4,740 

4,900 

5,270 

5,340 

5,330

4,040 

4,970 

5,170 

5,220 

5,200

5,020 

5,180 

2,910 

4,650 

4,810

4,620 

4,360 

5,160 

 7,210 

6,970

Month

Goto 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri

Uav

June 

July 

Augu 

Sept

Hat

endar year 1947

ember. ..........

sr year 1947-48

Deo.

6,720 

8,000 

9,340 

9,330 

8,820

7,090 

4,940 

5,550 

5,760 

6,280

6,100 

6,370 

6,380 

5,190 

5,280

6,270 

5,490 

9,250 

13,100 

13,000

13,500 

10,500 

7,160 

7,140 

5,470

5.92Q 

6^590 

6,290 

6,240 

6,740 

6,420

Jan.

6,760 

6,230 

6,600 

7,450 

8,370

8,970 

18,900 

25,400 

23,200 

20,900

20,900 

19,300 

14,700 

15,800 

15,600

12,700 

11,900 

9,620 

9,300 

11,800

11,400 

8,810 

7,030 

7,130 

6,720

7,070 

6,140 

6,200 

6,070 

6,170 

5,970

Feb.

5,390 

5,900 

6,230 

6,210 

6,360

5,840 

5,610 

4,920 

5,250 

5,130

6,030 

6,120 

5,600 

5,020 

4,500

£,7£0 

7,560 

8,960 

7,000 

5,990

6,300 

8,440 

11,500 

9,420 

8,920

13,800 

14,700 

15,200 

18^300

Mar.

12,200 

12,200 

11,600 

9,590 

9,580

10,000 

12,100 

9,300 

9,480 

9,430

91,090 

7,240 

7,150 

7,280 

7,170

T.150 

7,160 

5,890 

5,690 

5,640

6,440 

5,720 

10,000 

9,380 

9,380

9,420 

9,240 

§7240 

7,260 

9,220 

9,480

Observed

Discharge In 

seoond-feet

Maximum

9,360 

7,210 

13,500

27,300

25,400 

18,300 

12,200 

32,900 

47,300 

41,600 

6,270 

5,780 

2,970

47,300

Minimum

288 

2,910 

4,940

144

5,970 

4,500 

5,640 

9,410 

18,400 

10,300 

1,560 

214 

241

214

Mean

4,281 

4,949 

7,427

7,940

11,390 

7,790 

8,701 

17,870 

33,520 

25,650 

4,275 

3,178 

2,250

10,940

Runoff 

in 

acre-feet

263,300 

294,500 

456,700

5,749,000

700,400 

448,100 

535,000 

1,063,000 

2,061,000 

1,526,000 

262,800 

195,400 

133,900

7,940,000

Apr.

9.410 

9,420 

9,900 

14,200 

11,400

12,600 

12,900 

12,600 

12,800 

12,600

14,400 

11,200 

13,000 

14,000 

11,900

11,800 

11,900 

21,300 

16,100 

19,700

21,800 

21,800 

30,400 

32,500 

32,900

23,400 

25,000 

29,600 

30,900 

24,700

May

36.10C 

30.30C 

18.40C 

25,20C 

25.80C

25,60C 

27.30C 

34_,20C 

30.80C 

26.30C

2S.20C 

29.60C 

30.00C 

31.40C 

35.30C

yg,,ooc

2B.40C 

28.60C 

29.40C 

32.10C

31,30C 

36,90C 

38.30C 

45.60C 

4T.30C

42.80C 

42.40C 

42,10C 

4Z.50C 

43.30C 

43.60C

June

41,600 

40,600 

39,900 

38,300 

39,400

TT.200 

29, 900 

32,100 

31,800 

31,000

28 , 400 

30,900 

28,800 

25,800 

22,900

23,000 

22,600 

23,300 

26,600 

24*100

16,900 

16,300 

15,900 

16,900 

13,900

18 , 000 

16,400 

13,400 

13,400 

10,300 

-

July

5,350 

4,630 

4,100 

1,560 

^850

3,570 

4,290 

4,410 

4,250 

4,760

27410 

5,080 

5,080 

4,700 

4,940

4,310 

3,920 

1,960 

3,830 

3,730

4,270 

5,280 

4,310 

5,140 

2,860

4,370 

4,440 

4,390 

4,680 

6,270 

5,780

Aug.

4,780 

5,780 

4,920 

5,000 

4,520

4,590 

4,620 

2,920 

3,790 

3,900

1,710 

3,840 

4,360 

3,230 

214

2,570 

2,220 

2,550 

2,600 

2,750

2,430 

2,000 

2,470 

2,950 

2,660

2,520 

1,580 

1,990 

983 

3,190 

2,890

Sept.

2,780 

2,940 

2,730 

1,850

623

1,400 

2,490 

2,900 

2,7gO 

2,900

2,060 

826 

2,600 

2,150 

2/340

1,920 

2,120 

2,260 

241 

2,150

2,080 

2,620 

2,750 

2,890 

2,710

1,320 

2,970 2,950' 

2,640 

2,560

Adjusted f»- ehange In 

lake contents

Change In 

contents In 

Long Lake 

(acre- feet)

-6,220 

+7 , 600 

-2,480

-2,150

H-500 

-7,400 

H-5,900 

r6,350 

-7,650 

H-13,800 

+8,480 

+830 

+15Q

H-7,160

Runoff 

In 

aore-feet

257J.OC 

302.10C 

454, 20C

5,-747',OOC

700, 90C 

440, 70C 

540, 90C 

1,057,OOC 

2,053,OOC 

1,540,OOC 

271, 30C 

196, 20C 

134, OOC

7,947,OOC

Discharge in 

seooni-feet

Mean

) 4,18] 

5,077 

) 7,38"

) 7,93£

) 11.40C 

7,662 

8,791 

17,76* 

33.39C 

25.88C 

4,412 

3,191 

 2,252

10.95C

Per 

square 

mile

- 

_

1,30

_

- 

-

1.80

Runoff 

in 

inches

1

17.67

-

241.41

Note.- Backwater from Little Palls Oct. 1, to Sept. 30; discharge computed by Washing-ton Water Power 

Co. from power-plant records. Change in coijten^s for Long Lake based on 12 p.m. gage readings.
SPOKANE RIVER BASIN 285

St. Joe River at Calder, Idaho

Location.- Water-stage recorder, lat. 47°16', long. 116°11', in sec. 3, T. 45 N., R. 2 

E., ifaO feet southwest of Chicago, Milwaukee, St. Paul & Pacific Railway station at 

Calder. Datum of gage is 2,100 feet above mean sea level, referenced to original elevation of bench mark "2188 1911 20" (U. S. Geol. Survey Bull. 567). Bench mark has 

since been moved; revised elevation about 0.86 foot higher.

Drainage area.- 1,080 square miles.

Hecpras available.- July 1920 to September 1948. April 1911 to September 1912 at site 

2? miles downstream.

Average discharge.- 28 years (1320-48), 2,226 second-feet.

Extremes.- Maximum discharge during year, 23,700 second-feet May 28 (gage height, 89.04 

TeeTTT minimum, 378 second-feet Oct. 1 (gage height, 79.47 feet).

1911-12, 1920-48: 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 

feetj.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnich are fair. No diversion above gage.

Cooperation.- Gage-height record and five discharge measurements furnished by Washington 

water power Co.

Eating table, water year 1947-48, except periods of Ice effect

7gage height, In feet, and discharge. In second-feet) 

(Shifting-control method used May 30 to July 17, Aug. 1 to Sept. "30)

79.4

79.9

80.5

81.0

81.6

350

590

970

1,380

1,990

82.4

83.2

84.0

85.0

86.0

2,940

4,090

5,470

7,630

10,400

87.0 14,200

88.0 18,600

89.0 23,500

Discharge, in second feet, water year October 1947 to September 194F

Day

1

2

3

4

5

6

7

8

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

412

835

680

568

546

590

674

770

680

816

835

8750

8680

8600

a 600

hi, 380

f2,390

2,630

2,600

2,260

1,960

1,690

1,530

1,360

1,260

1,180

1,140

hi, 180

f 1,240

1,200

Nov.

1,160

1,150

1,110

1,110

1,100

1,070

1,160

2,180

2,040

1,710

1,750

1,580

1,490

1,470

hi, 310

hi, 230

hi, 150

hi, 140

hi, 080

hi, 040

h938

U900

f935

928

949

998,

2,380

2,060

1,810

1,740

-

Dec.

1,800

1,670

1,650

1,580

1,470

1,450

1,420

1,340

1,290

1,230

1,180

1,120

1,140

1,180

1,140

1,060

1,180

1,330

1,520

1,370

1,270

1,210

1,140

1,100

1,060

998

1,000

1..090

1,090

949

868

Jan.

1,030

1,180

1,150

1,070

1,020

1,650

6,250

6,700

4,310

3,330

2,890

2,400

2,000

bl.800

bl , 750

bl,550

bl,60O

bl,600

bl.SOO

1,510

*1,510

1,530

1,460

1,370

1,240

956

900

b950

bl,000

bl,150

bl,200

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

J&nuary

February ......................

March .........................

April .............. ..........

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1947-48 ..........

Feb.

1,220

1,080

bl,040

bl,020

b950

b770

b860

1,100

1,130

1,030

b710

b720

956

1,000

1,080

984

1,120

1,420

1,420

1,180

1,120

1,630

1,740

1,460

1,400

2,890

2,780

2,080

1,760

_

-

Secondfoot-days

35,418

40,728

38,895

932,002

59,556

37,650

37,654

168,080

418,340

213,590

52,780

29,321

16,102

1,148,114

Mar.

1,570

1,460

1,330

1,180

1,140

1,170

1,140

1,120

1,060

880

970

1,070

1,040

1,000

963

935

949

984

942

907

894

1,220

1,210

1,150

1,240

1,280

1,250

1,490

2,080

2,080

1,950

Maximum

2,630

2,380

1,800

16,500

6,700

2,890

2,080

15,000

22,600

14,700

2,590

1,590

626

22,600

Apr.

1,820

2,150

3,000

2,820

2,530

2,330

2,070

1,900

1,940

2,010

1,980

1,880

1,750

1,770

2,170

4,070

8,830

10,000

8,590

10,300

12,400

15,000

13,100

10,300

8,830

7,100

5,920

5,430

7,610

8,480

-

May

7,370

6,480

6,270

6,880

6,400

7,370

' 11,200

11,400

9,600

8,300

7,730

8,270

11,000

11,600

9,570

10,500

13,400

14,800

14,000

17,400

19,500

21,100

19,000

19,300

20,700

21,100

21,900

22,600

20,600

17,200

15,800

Minimum

382

900

868

382

900

710

880

1,750

6,270

2,720

1,120

638

475

382

June

14,700

14,300

14,400

14,200

12,500

11,300

10,900

10,400

9,650

9,080

8,710

7,520

6,800

6,200

5,680

5,510

5,170

4,750

4,410

4,150

4,160

3,900

3,640

3,450

3,350

3,200

3,100

2,940

2,800

2,720

-

Mean

1,143

1,358

1,225

2,553

1,921

1,298

1,215

5,603

13,490

7,120

1,703

946

537

3,137

July

2,590

2,460

2,330

2', 230

2,120

2,010

2,000

1,910

1,800

1,740

1,680

1,620

1,540

1,480

1.42C

1.39C

1.34C

1,32C

1,53C

2.10C

1,60C

1,37C

1.28C

1.24C

1.18C

1,120

1,180

1,980

2,150

1,630

1,440

Per

square 

mile

1.06

1.26

1.16

2.36

1.78

1.20

1.12

5.19

12.5

6.59

1.58

.876

.497

2.90

Aug.

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

460

590

400

260

190

140

090

040

99S

030

180

000

949

928

aai

842

822

802

790

809

776

758

816

796

828

764

722

692

668

656

638

Sept.

626

614

596

590

590

579

574

574

557

546

535

525

510

500

490

485

490

490

495

485

475

480

568

562

510

540

579

552

505

480

-

Runoff

Irches

1.22

1.40

1.34

32.09

2.05

1

1.30

1.30

5.79

4.41

7.36

1.82

1.01

.55

39.55

Acre feet

70,250

80,780

77,150

1,848,000

118,100

74,680

74,690

333,400

829,800

423,600

104,700

58,160

31,940

2,277,000

Peak discharge (base, 5,280 sec.-ft.).- Jan. 7, 8,620 sec.-ft.j Apr. 22, 15,700 sec.-ft.; Apr. 30, 

8,830 sec.-ft.; May 8, 11,800 sec.-ft.; May 28 (6 a.m.) 23,700 sec.-ft.

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of recorded range In stage and records for 

stations on Coeur d'Alene ana North Pork Clear-water Rivers.

b Stage-discharge relation affected by Ice.

f Computed from partly estimated gage-height record.

h Computed from staff-gage reading.
286 SPOKANE RIVER BASIN

St. Maries River at Lotus, Idaho

Location.- Staff gage, lat. 47°14'40", long. 116°37'30", in sec. 17, T. 4f N., R. 2 W., 

1 mile northwest of Lotus, 1 mile downstream from Carlton Creek, and 5j- miles southwest of St. Maries. Datum of gage is 2,140.19 feet above mean sea level, referenced 

to bench mark "U.S.G.S. 2155 1911 35" (U. S. Geol. Survey Bull. 567, p. 45).

Drainage area.- 437 square miles.

Kecoras available.- October 1945 to September 1948. July 1911 to October 1912 and July 

1920 to September 1945 at site 1.3 miles upstream.

Average discharge.- 28 years (1920-48), 488 second-feet.

Extremes.- Maximum discharge observed during year, 11,300 second-feet Feb. 26, from

rating curve extended above 2,400 second-feet on basis of slope-area determination at 

gage height 6.5 feet; maximum gage height, about 12.0 feet Feb. 23, from floodmark 

(ice jam]; minimum discharge observed, 68 second-feet Oct. 1; minimum gage height 

observed, 1.46 feet Sept. 16, 22.

1911-12, 1920-48: Maximum discharge observed, 23,800 second-feet Dec. 22, 23, 1933 

(gage height, 12.1 feet, site and datum then in use), from rating curve extended above 

4,000 second-feet by logarithmic plotting; minimum, 16 second-feet (estimated) Nov. 21, 

1929.

Remarks.- Records good except those above 4,000 second-feet and those for periods of ice 

errect or backwater from log jam on control, which are poor. Gage read once daily. 

No diversion above station.

Cooperation.- Gage readings and four discharge measurements furnished by Washington Water 

fower co.

Revisions.- W 1062: Drainage area.

Discharge, in second-feet, water year October 1947 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21^2

23

24

25

26

27

28

29

30

31

Oct.

68

79

108

147

123

102

94

140

190

14O

190

190

126

1O8

102

169

270

572

485

579

514

550

472

3O6

230

203

186

178

199

290

254

Nov.

212

194

190

194

194

203

249

2,360

1,170

758

893

682

6O2

633

542

472

445

438

406

369

306

290

254

240

249

1,920

1,500

1,070

766

819

-

Dec.

1,O10

1,OOO

801

766

674

587

521

458

419

375

346

323

334

445

419

323

458

1,620

1,970

1,340

893

766

7O7

633

499

528

445

445

413

357

340

Jan.

452

856

1,350

951

542

1,640

7,500

5,280

2,430

1,580'

1,100

980

514

535

470

460

480

480

450

450

450

450

480

520

500

350

270

280

360

370

380

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ................... ....

September .....................

Water year 1947-48 ..........

Feb.

39O

340

330

320

3OO

250

270

350

360

330

220

240

290

310

35O

340

380

5OO

540

500

450

880

1,OOO

800

1,770

8,110

4,630

2,490

1,810

_

-

Secondfoot-days

7_, 364

18,620

20,215

210,020

32,910

28,850

26,580

77,63O

90,210

29,283

9,2O8

6,468

3,119

350,457

Mar.

1,360

1,160

980

766

723

649

626

602

550

438

440

452

425

413

413

406

438

492

438

394

394

2,290

1,48O

1,000

1,150

1,020

971

1,120

1,620

1,820

*1,550

Maximum

57 C

2,360

1,97O

4.OOO

7,500

8,110

2,290

6,080

6,410

2,120

1,000

492

161

8,110

Apr.

1,520

1,740

2,980

2,270

1,900

1,720

1,340

1,240

1.31O

1,4OO

2,790

1,460

1,280

1,3OO

1,520

2,250^

4,9OO

6,080

4,19O

3,790

3,570

4,280

4,240

3,390

3,370

3,320

2,360

1,950

2,060

2,110

-

May

1,940

1,700

1,530

2,000

1,810

1,890

2,490

3,630

4,300

3,850

3,090

2,890

2,950

2,790

2,360

2,290

2,250

2,210

2,O10

2,350

2,550

2,780

5,510

6,410

4,350

3,460

3,060

2,760

3,440

3,140

2,420

Minimum

68

190

323

43

270

220

394

1,240

1,530

388

125

114

89

68

June

2,120

1.84O

1,860

2,06O

1,750

1,510

1,290

1,180

1,060

951

1,100

1,020

838

884

732

980

847

666

641

587

682

666

595

557

572

542

521

438

406

388

-

Mean

238

621

652

575

1,062

995

857

2,588

2,910

976

297

209

104

958

July

36S

34C

317

301

363

31?

296

29C

25S

25S

24E

221

207

194

178

186

182

178

212

30C

40C

21C

17C

15C

14C

125

135

44C

1,OOC

723

506

Per 

square 

mile

0.545

1.42

1.49

1.32

2.43

2.28

1.96

5.92

6.66

2. 23

'.eao

.478

.238

2.19

Aug.

419

192

594

529

290

259

249

230

207

226

270

221

L94

L90

186

165

LSI

L47

L36

147

133

L40

L40

L43

199

158

L43

L40

L36

L20

114

Sept.

Ill

108

1O5

102

102

99

99

99

96

96

99

95

94

92

92

89

92

94

94

92

92

89

99

117

99

117

161

154

129

111

-

Runoff

Inches

0.63

1.5S

1.72

17.86

2.80

2.46

2.26

6.61

7.68

2.49

.78

.55

.27

29.83

Ac re- feet

14,610

36.93O

40,100

416,600

65,280

57,22O

52,720

154,000

178,900

58,080

18,26O

12,830

6, ISO

695,100
SPOKANE RIVER BASIN 287

Hayden Creek below North Fork, near Hayden Lake, Idaho

Location.- Staff-gage, lat. 47°49'20", long. 116°39'20", In NW£sw£ sec. 25, T. 52 N., R. 

3 W., 0.35 mile downstream x'rom North Fork, 2£ miles upstream from mouth, and 7 miles 

northeast of Hayden Lake post office.

Drainage area.- 22.0 square miles; 26.0 square miles at former site.

Records available.- April to September 1948. Records at present site published in Watersupply faper 1080 as Hayden Creek near Hayden Lake.

Extremes.- Maximum discharge during period, 680 second-feet Apr. 17 (gage height, 4.38 

reet; from floodmark), by slope-area method; minimum observed, 4.8 second-feet Sept. 

14-23; minimum gage height observed, 1.14 feet Sept. 10, 11, 13-18, 20-23.

Remarks.- Records good except those for periods of no gage-height record in A^ril and 

 May, which are'poor. Gage read twice daily prior to July 2 and once daily thereafter. 

No diversion above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

OO £>O

29"tft ou

31

Oct. Nov. Dec. Jan.

Month

October .......................

November ......................

December ......................

Calendar year .........

January .......................

February ......................

 arch .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year .....:....

Feb.

Secondfoot-days

4,644

5,137 

1 125

632

454.4

178.2

-

Mar.

Maximum

_

550

320

71

39

28

8.5

-

Apr.

a70

a74

alls

a!05

alOO

a85

a75

a65

365

368

362

358

356

354

354

3100

3550

3400

3300

3230

3340

300

274

3200

3180

162

136

110

122

134

-

May

3110

398

87

90

92

136

207

3260

3320

256

209

186

222

212

170

3173

178

155

129

136

142

3160

3190

217

3230

207

170

142

122

3100

81

Minimum

_

_

54

31

26

13

9.2

4.8

-

June

71

66

58

56

51

347

343

40

39

35

33

35

331

29

28

30

34

31

28

327

333

32

31

35

35

32 331-

30

28

26

~

Mean

_

_

_

155

167

37.5

20.4

14.7

5.94

-

July

25

23

322

321

320

20

26

22

19

18

318

17

17

16

15

14

14

313

13

26

22

20

18

17

316

14

14

35

39

31

27

Per 

square 

mile

_

_

_

7.05

7 59

l!70

.927

.668

.270

-

Aug.

327

28

26

23

20

18

17

316

16

15

15

14

14

14

314

13

13

13

12

12

12

312

11

11

10

10

10

10

310

9.2

9.2

Sept.

8.3

8.3

7.6

7.6

37.1

6.6

6.6

6.3

6.3

5.3

5.3

35.2

5.0

4.8

4.8

5.0

4.8

4.8

34.8

4.8

4.8

4.8

4.8

5.3

5.3

35.3

5.3

8.0

8.0

7.3

-

Runoff

Inches

_

_

_

7.83

8.77

1.91

LOT

.77

.3T

-

Acre-fest

_

_

_

9,210

10,290

2,230

1,250

901

353

24,230

3 No gsge-helght record; discharge computed on basis of weather records, records for Coeur d'Alene 

River stations and Hayden Lake, and slope-area determination.
288 SPOKANE RIVER BASIN

Hayden Creek near Hayden Lake, Idaho

Location.- Water-stage recorder, lat. 47°49'20", long. 116°41'10", in sec. 27, T. 52 N., 

R. 3 w., 0.1 mile upstream from Lancaster Creek, 0.5 mile (revised) upstream from 

mouth, and 5 miles northeast of Hayden Lake post office.

Drainage area.- 26.0 square miles.

Records available.- April 1946 to March 1948 (station destroyed by flood of April 1948 

ana record discontinued).

Extremes.- Maximum discharge during period October 1947 to March 1948, 319 second-feet 

Jan. / (gage height, 2.42 feet); minimum, 4.0 second-feet Oct. 2 (gage height, 0.28 

foot).

1946-48: Maximum discharge, 445 second-feet Dec. 15, 1946 (gage height, 3.37 

feet), from rating curve extended above 250 second-feet; minimum, 3.2 second-feet 

Sept. 5, 6, 1947 (gage height, 0.25 foot).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnicn are poor. No diversions above station.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

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

7.3

S.9

6.6

7.0

6.2

5.2

6.6

6.6

12

9.8

7.6

6.6

5.9

9.S

32

25

24

26

33

54

39

29

24

21

19

IB

19

19

27

29

NOV.

29

28

29

31

30

20

28

34

36

35

32

29

30

30

38

26

25

24

22

21

20

19

IS

IS

18

22

24

26

26

27

-

Dec.

27

25

25

24

22

22

22

21

20

19

18

18

20

2C

20

19

48

93

110

93

68

55

46

40

35

34

33

36

36

37

37

Jan.

39

4S

46

49

45

123

291

222

153

116

89

73

66

61

55

50

45

40

39

36

34

 32

30

28

21

18

b!7

b!6

bl8

20

19

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

The period ........ ..........

Feb.

b!6

bl4

b!2

bl4

15

12

12

13

13

11

10

11

11

12-

13

15

19

25

 21

20

19

35

37

33

37

f93

72

66

56

-

Secondfoot-days

549 793* 3

1,143

11,075.9

1,939

737

1,187

_

-

-

Mar.

50

46

41

34

33

32

32

31

30

28

29

26

26

27

27

26

26

26

25

26

26

45

42

41

h40

42

44

50

88

7e

70

Maximum

54

36

110

143

291

93

88

_

-

Apr. Hay

Minimum

4.2

18

18

3.2

16

10

25

.

.

June

Mean

17.7

26.4

36.9

30.3

62.5

25.4

38. 3

_

.

July

Per 

square 

mile

0.681

1.02

1.42

1.17

2.40

.977

1.47

_

_

_

Aug. Sept.

Runoff

Inches Aore-feet

0.7? 1,090

1.13 1,570

1.63 2,270

15. 8* 21,980

2.77 3,850

1.01 1,460

1.7") 2,350

_

"

_

12,590

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

f Computed from partly estimated gage height. 

h Computed from staff -gage reading 

Note.

puted on 

River. "

iputed from staff-gage reading.

_- No gage-height record Jan. 15-17, Feb. 5-18, Feb. 27 to Mar. 24, Mar. 26-31; discharge comm basis of weather records, recorded range In stage, and records for stations 01 Coeur d "Alene
SPOKANE RIVER BASIN 289 

Haydsn Lake at Hayden Lake, Idaho

Location.- Staff fage, lat. 47 a 46', long. llBMs', In sec. 18, T. 51 N. ( R, 3 W., at 

Avondale and Hayden Lake pumping plants, a quarter of a mile north of Brzanta TaVefn 

at Hayden Lake. Datum of gage is 2,200.21 f§§t kb'6v6 fflfeaii Sfia le¥el, drtium of 19l§.

Records available.- May 1920 to September 1948.

Extremes.- Maximum gage height during year, 38.19 feet, from floodmark, May 3flj iiftifflf 

 observed, 28.64 feet Oct. 12-14.

1920-48: Maximum gage height, 40.41 feet Apr. 30 to May 18, 1921; minimum observed, 

19.38 feet Dec. 16, 1931.

Remarks.- Gage read once daily. Water is pumped from lake for irrigation tnd domestic 

supply.

Revisions (water yearsL- W 962s 1921(M).

Oage height, In feet, water year October 1947 to September 1948

Bas

|

T

H

10

jLl

12

13

1%

18

16

17

18

19

20

21

22

23

24

26

26

27

H

3d*

Oct.

1§ : §8

28.70

28i72

28 If t

fe8 -.70

88:69

§8.68

28. §8

28t87

28.66

28. Bi

28: §4

28'. §4

28; IBS

28'. 7i6

28.82

28.86

28.89

28 1 9*

29.04

29.08

29.09

29.10

29.10

29.11

89.11

29:12

il.H

89 vie

E9,18

Nor.

29.20

29.22

29i24

29; 26

29;2§

29:50

29;J2

29 3S

29:36

§9 -.38

29:38'

2&-40

29.43

29; 4^

29; 48

29.49

29.49

29.52

eg: 52

29.53

29.54

29.54

29.53

29.52

29.52

20.se

Bf»§§

89. &6 

29.58

29, 63

-

Dec.

29:60

29.63

29.64

29! 58

29.68

gg.68

29: 58

29.68

29:68

2§.69

29 !69

£9.69

29.69

29.69

29.70

29:72

29 -.80

29.92

30.02

30.08

30.13

30.16

30.20

30.21

80t22

SO. 24

.30.26 

30.28

&&&B6

30-. 30

Jan.

30.32

30.40

30.45

30.50

30:54

30.60

30:88

isi J2

31.34

31.44

31.56

31.58

3J-.38

31: So

31: S9

31.60

Si. 60

31.60

31.60

31.61

31.61

31.61

31.61

31.61

 31.60

31:80

31.59

31.57

§1 53

31.51

Feb.

31.49

31.47

31.46

31.45

31.44

31.42

31. 43

§1.40

31.42

31.42

31.42

31.41

if-*3

31:45

31.47

31.49

31.50

31.50

31.51

31.52

31.54

31.56

31.57

31.58

31.70

31.82

31.90 

31:56

. -

Mar.

31.98

32.00

32.04

32.04

32.04

32.05

32.06

32.06

32.06

32.06

32.05

32.05

32:04 $2.04

32.04

32.03

32.03

32.04

32.04

32.05

32.06

32.10

32.16

32.22

32.26

32.28

32.29

3Z.3Q 

32.32

32.36

432.40

Apr.

32.44

32.52

32.66

32.78

32.86

32.96

33.04

33.08

33.14

33.17

33.20

33.24

33: ?8

33.30

33.32

33.34

33.50

34.00

34.30

34.52

34.70

34.90

35.10

35.22

35.42

35.52

35.56

35.64 

35.71

3 5. '78

Hay

35.84

35.88

35.89

35.96

36.00

36.04

36.16

36.36

36.62

36.90

36.94

37.04

37.34

37.38

37.40

37.44

37.48

37.52

37.60

37.62

37.62

37.64

37.72

37.86

37.96

38.02

38:06

33.08 

38.14

38.16

38.14

June

38.12

38.02

37.98

37.96

37.94

37.82

37:76

37.74

37.72

37.64

37.62

37.56

37.50

37.42

37.34

37.32

37.34

37.30

37.24

37.22

37.14

37.10

37.08

37.04

37.04

37.00

36:96

36 92 

36!88

36.84

July

36.74

36.72

36.64

36.6?

36.56

36.54 36:54

36. 5C

36.44

36.4?

36.36

36.34

36.24

36.14

36.1?

36.06

36.02

35. 9e

35.94

35.9?

35. 8f

35.84

35.8C

35. 76

35.72

3S;7C

35:66

ss.ee 

ss.ee

35.64

35.64

Aug.

35:60

35.58

35.56

35.52

35.46

35:44

35'3|

35.36

35.34

35.30

35.24

35.18

35.14

35.12

35.06

35.02

34.96

34.86

34.84

_

34.66

34.68

34.66

34.62

34.56

34. S2

34.49 

34.44

34,38

34.33

S8pt.

34 28

34i?S

34.19

34.14

34.12

3.4.06

54! 05

Si: Pi

33.96

33.94

33.89

33.86

33. 81

33:73

33.75

33.72

33.89

33.66

33.64

33.62

33.56

33.55

33.54

33.53

3.3:46

33.46

33,46

33.44 

33.43

33.38

-
290 SPOKANE RIVER BASIN

Hayden Lake Irrigation District diversion near Hayden Lake, Idaho

Location.- Water-stage recorder and Cipolletti weir, lat. 47°46', long. 116°47'30", in 

HEfsec. 14, T. 51 N., R. 4 W. , at dividing tower at end of main pipe line, if miles 

west of Hayden Lake post office and pumping plant and 7 miles north of C^eur d'Alene.

Records available.- June 1946 to September 1948.

Extremes.- Maximum discharge during year, 7.6 second-feet July 28 (gage height, 0.59 

root); no flow during nonirrigation season.

1946-48: Maximum discharge, that of July 28, 1948; no flow during noiirrigation 

season.

Remarks.- Records good. Discharge at station is pumped from Hayden Lake fo- irrigation 

or lands in Hayden Lake Irrigation District.

Discharge, In second-feet, water year October 1947 to September 194°

Day

1 

2 

3

4 

5

6 

7 

8 

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 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48. ......................

Mar. Apr.

Secondfoot-days

0 

0

0

426.4

0 

0 

0 

0 

0 

0 

50.6 

173.5 

10.1

234.2

May

Maximum

0

O

0

7.1

0 

0 

0 

0 

0

o

7.4 

6.3 

4.8

7.4

June July

0 

0

o

0

0

0 

0 

0 

0 

0

0 

0 

0 

0

a4.7

a7.1 

a7.1 

a3.6 

0 

0

0 

0

0 

4.0 

7.1

7.2 

7.4 

2.4 

0 

0 

0

Minimum

o 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0 

1.8 

6.3 

6.3

6.1

6.3 

6.3 

6.3 

a6.3 

a6.3

a6.3 

a6.3 

a6.3 

a5.9 

a6.3

a6.3 

a6.3 

6.3 

6.3 

6.3

6.0 

5.6 

5.4 

5.6 

5.6

5.3 

5.3 

5.3 

5.1 

4.9 

4.8

Mean

0 

0 

0

1.17

0 

0 

0 

0 

0 

0 

1.63 

5.60 

.34

.64

Sept.

4.8 

4.1 

1.2 

0 

O

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

Runoff In 

acre-feet

0 

0 

0

846

0 

0 

0 

0 

0 

0 

100 

344 

20

464

a No gage-height record; dlacharge computed on basis of records of pump operation and gage height 

at beginning and end of period.
SPOKANE RIVER BASIN 291

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., 

45U 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 1948.

Extremes.- Maximum discharge during year, 62 second-feet Aug. 9 (gage height, 3.05 feet); 

no flow for long periods.

1946-48: Maximum discharge, 67 second-feet June 29, July 2, 1947; maximum gage 

height, 3.05 feet June 3, 1947, Aug. 9, 1948; no flow for long periods each year.

Remarks.- Records good except those for Sept. 26, 27, which are poor. Canal carries 

water which is -pumped from Spokane River for irrigation of first unit of Rathdrum 

Prairie project.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2

3

4 

5

6 

7 

8

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

o

2.4 

O 

0 

0

o

0 

0 

0

o

0.1 

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0

o

0

Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48. ......................

Mar. Apr.

Secondfoot-days

2.5 

0 

0

5,837.1

O 

0 

O 

0 

74.5 

173.5 

1,537 

1,800 

1,077

4,664.5

May

0 

0

o

0 

0

0 

.9 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

2.6 

0 

3.0

0 

0 

0 

0

11

20 

19 

18 

0 

0 

0

Maximum

2.4 

0 

0

66

0 

0 

0 

0 

20 

22 

61 

61 

54

61

June

0 

9.1 

20 

0 

O

0 

.4 

16 

18 

21

O 

0 

0 

O 

22

12 

0 

O 

0 

0

0 

0

o 

o 

o

0

o

17 

21 

17

July

32 

31 

31 

31 

31

31 

31 

31 

30 

45

50 

50 

55 

56 

55

55 

57 

58 

57 

58

61 

61 

61 

61 

60

60 

60 

59 

59 

60 

60

Minimum

0 

0 

0

0

o

0 

0 

0 

0 

0 

30 

54 

0

0

Aug.

60 

60 

61 

61

61

61 

61 

61

61 

61

61 

61 

61 

61 

56

56 

57 

57 

57 

57

56 

56 

56 

56 

55

55 

55 

55 

55 

55 

e54

Meai

0.08 

0 

0

16.0

0 

0 

0 

0 

2.40 

5.78 

49.6 

58.1 

35.9

12.7

Sept.

54 

52 

54 

35 

52

52 

52 

52 

52 

45

36 

52 

45 

29 

35

50 

43 

30 

31 

31

30 

31 

31 

31

31

e31 

elO 

0 

0 

0

Runoff In 

acre -feet

5.0 

0 

O

11,570.0

0 

0 

0 

0 

148 

344 

3,050 

3,570 

2,140

9,260.0

e Fragmentary or no gage 

record.

-height record; discharge Interpolated, or computed on basis of pumping
892 SPOKANE RIVER BASIN

Spokane Valley Farms Co.'s canal at Pojf; Flails, Idaho

Location.- Water-stage recorder, lat. 47'43', long. 116°57', in sec. 3, T. SO N., R. S 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, ^4J.

Extremes.- Maximum discharge during year, 298 second-feet July 13 (gage

 no flow Oct. 1 to Apr. 5, Sept. 28-30.

1911-17, 1919-48: Maximum discharge observed, 3Q4 s.ecqnd-fget (Jay. 28, 1936; no 

flow except during irrigation seasons '' ' ^ '

Canal diverts water for irrigation from Spokane River in SE£

Cgoperation.- Water-stage recorder inspected by employee of Spokane Valley Farms Co. Three 

- - fliBcnarge measurements furnished by Washington Water Power Co.

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11

14 

15

16 

17 

18 

19 

20

21

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Goto 

Move 

Decs

Ca

Janu 

Febr 

Marc 

Aprl

MRV

June 

July 

Augu 

Sept

Ha

ber. ....................................

Lender ysar 1947

USPV

ter year 1947-48 .......................

Mar. Apr.

0

80 

0

15 

35 

60 

82 

59

43 

43 

43

51 

52

51 

50 

51 

52 

52

53

53 

54 

54 

54

54 

54 

31 

20 

20

Secondfoot -day*

0 

0 

0

32,632

0 

0 

0 

1,186 

889 

4,666 

8,742 

8,224 

2,795

26,502

May

~- 20

1820 

23

24 

24 

24 

24 

24

24 

S3

23 

29 

31

31

31 

31 

31 

31

31 

31 

31 

31 

31

31 

37 

39 

39

40 

40

Maximum

0 

0 

0

292

0 

0 

0 

82 

40 

249 

290 

285 

186

290

Jun?

1 

64 

84

84 

84 

121 

189 

210

21g 

lil 

78 

167 

202

185 

149 

163 

191 

192

189 

189 

195 

199 

198

192 

190 

163 

804 

849

w*~~

- "Z57 

2.57. 

276 

281 

279

279 279*

280 

2.80

281 

279 

282 

289 

290

286 

285 

286 

285 

287

289 

289

288

267

S§6 

§81 

880 

888 

286

Mlnimun

0 

0 

0

- - P0 

0 

0 

20 

40 

257 

213 

P

0

"*"? 

284 

284 

282

282 

294

877 

877 

276 

274 

274

273 

273 

275 

273 

269

269 

267

23Q

135

832

222 

213

Mean

 0 

0 

0

" W-.i

.. _ _ _ ? _

0 

0 

39.5 

26.7 

156 

282 

265 

9g.2

72.4"

Sept.

1¥182 

186

165

143

141 

141 

140 

139 

138

65 

27 

27 

26 

26

26 

2?

24

14 

1 

0 

0

Runoff In 

acre-feet

0 

0 

0

Hj 18

0

2,350 

1,760 

9,250, 

17,30 

ijigg

"52,550
SPOKANE RIVER BASIN 293

Latah Creak; at Spokane, Wash.

Location.- Wire-weight gage, lat. 470 38'50 H , long. 117°27 I 00", in SW£ sec. 24, T. 25 N., 

K. 42 E., in Spokane 1 mile upstream from mouth.

Drainage area.- 630 square miles.

Records available.- April to September 1948.

JMjgage height, 18.73 

tods; ifinimum observed,

Extremes.- Maximum discharge during period, 11,900 second-feet 

feet, from floodmarks), by elope-area and 'contracted-opening 

22 second-feet Sept. 14 (gage height, 6.74 feet).

Remarks.- Records excellent except those for periods of no gage-height record, rapidly 

 cnanging stage, or shifting control, which are fair^ Gage read twice daily." TIo 

diversion or regulation.

Discharge, in second-feet, water year October 1947 to September 1348

Day

1 

2 

3 

4 

5

6 

7 

8 

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

Octe 

Nove 

Deoe

Ci

Jam 

ratal 

Hare 

Apr 

Hay 

Jun« 

Jtulj 

Augv 

8ep1

ft

bar .

fibiif 11 i - 

fflbef ......................

leadar year 

tartf t

1 .........................

ember .....................

e period. i .................

Feb.

Secondfoot-days

17,940 

59,660 

11,716 

2,410 

1,180 

795

-

liaf.

Maximum

1,500 

9,570 

1,270 

171 

80 

35

-

Apr.

a460 

a48O 

a520 

a480 

a520

a54O 

aSOO 

a480 

540 

540

490 

49O 

465 

395 

355

395 

775 

1,500 

1,5OO 

1,000

665 

540 

540 

490 

700

lie

375 

515

May

395 

335 

296 

540 

490

440 

570 

1,180 

5, "370 

4,040

2,380 

2,180 

3,280 

1,730 

1,000

700 

545 

476 

441 

1,110

1,590 

1,550 

8,020 

9,570 

3,810

J>7?0 

I»08§ 

736 

1,630 

1,580 

826

tlininun

355 

296 

134 

43 

26 

24

-

June

628 

503 

478 

512 

482

398 

325 

273 

241 

466

252 

659 

390 

322 

263

328 

476 

367 

256 

393

1,270

i

485

296, 

227 

184 

158 

134

tlsan

598 

1,925 

391 

77.7 

38.1 

26.5

-

July

118 

102 

98 

93 

98

128 

118 

171 

112 

102

88 

84 

76 

72 

64

60 

56 

53 

53 

56

53 

50 

46 

46 

50

46 

43 

50 

56 

56 

112

Per 

square 

Bile

0.949 

3.O6 

.621 

.133 

.060 

.042

-

Aug.

80 

72 

aS4 

a56 

a50

46 

43 

40 

40 

40

39 

38 

35 

34 

32

32 

31 

30 

29 

30

30 

50

g

30

29 

29 

28 

28 

37 

26

Sept.

27 

27 

25 

35 

25

26 

25 

25 

25 

24

24 

24 

24 

24 

24

24 

27 

28 

26 

26

25 

27 

28 

27 

a28

31 

35 

30 

29 

30

Runoff

Inches Acre-feet

1.06 35,580 

3.52 118,300 

.69 23,240 

.14 4,780 

.07 2,340 

.05 1,580

185,800

& Me gage-height record; discharge computed on basis of records for Little SpokAne River at 

. 

Shirtihg-eontrol method used Apr. 9 to May 22, Sept. 17-30.
SPOKANE RIVER BASIN

Little Spokane River at Seotia, Wash.

Location.- Staff gage, lat. 48°06'20", long. 117°09'10", in SWp sec. 8, T. 30 N., R. 

E., at county road crossing at Scotia.

Drainage area.- 39.9 square miles.

Records available.- July to September 1948 (discontinued).

Extremes.- Maximum discharge during period not determined, probably occurred July 1; 

minimum not determined,-probably occurred sometime during period Sept. 21-25.

Remarks.- Records fair. Gage read once daily. No regulation or diversion. 

Discharge, In second-feet, July to September 1948

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

Month

September. ......

The period. . . .

July

40

40

39

39 

39

40

38

37

37

38

37

38

38

37

38

Aug.

36

35

35

35 

35

35

35

34

34

34

34

34

34

33

33

Sept.

31

31

32

31

31

31

31

31

30

30

30

30

30

30

30

Secondfoot -day s Maximum

909 32

-

Day

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

July

37

37

38

i?37

37

37

38

37

36

36

37

37

35

36

Aug.

33

33

33

32 

32

32

32

32

32

31

31

32

31

31

31

31

Per square Minimum Mean mile

29 30.3 .759

.

Sopt .

30

30

30

30 

30

29

29

29

29

29

30

32

32

31

30

-

Runoff

Inches

.81

-

Acre-feet

2,030

1,800

6,140

Note.- No gage-height record July 1-7, Sept. 9-22, 24-30; discharge computed on basis 

of records for nearby stations.

Little Spokane River at Elk, Wash.

Location.- Water-stage recorder, lat. 48°01'20", long. 117°16'20", in SE*t sec. 8, T. 29 

 N., K. 44 E., half a mile north of Elk.

Drainage area.- 80 square miles.

Records available.- July to September 1948.

Extremes.- Maximum discharge during period not determined, probably occurred July 1; 

minimum, 45 second-feet Sept. 15, 16 (gage height, 1.23 feet).

Remarks.- Records good. No known regulation or diversion.

Discharge, In second-feet, July to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Month

August. .........

September. ......

The period. . . .

July

aG8

aG7

aG6

aG5

aGS

a 68

aS8

aG7

66

65

64

62

62

61

60

Aug.

55

55

54

54

53

53

53

53

52

52

52

51

51

51

51

Sept.

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

July

60

60

59

59

60

59

58

57

57

56

55

56

58

58

58

56

Aug.

50

SO

50

49

49

49

49

49

49

48

48

48

47

47

46

46

foo^ays **!»» « *»» *« ^1%* 

1,394 49 46 46.5 .581

-

Seft.

4e

47

47

47

47

46

46

46

46

46

47

49

49

48

47

-

Runoff 

Inches Acre-feet

.65 2,760

9,630

a No gage-height record; discharge computed on basis of records for nearby streams.
SPOKANE RIVER BASIN 295

Little Spokane River at Milan, Wash.

Location.- Staff gage, lat.. 47°S8'00", long. 117°20'00", NE^sec. 35, T. 29 N., R. 43 E.,

 at county road crossing at Milan, 1 mile downstream from West Branch Little Spokane 

River.

Drainage area.- 240 square miles.

Records available.- July to October 1948 (discontinued).

Extremes.- Maximum discharge during period not determined, probably occurr-ed' July 1; mini-

 mum observed, 80 second-feet Aug. 31 (gage height, 1.20 feet).

Remarks.- Records good. Gage read once daily. Some diversion for Irrigation and domestic 

use.

Discharge, in second-feet, July to October 1948

Day

' \

2

3

4

5

6

7

8

July

aJ!7rt

a26O

a250

a240

a250

a260

a26O

a250

Aug.

ISfl

134

13O

126

123

121

119

119

Sept.

86

93

90

88

88

88

87

89

'Oct. 9T

92

90

92

94

94

101

94

Day

9

10

11

12

13

14

15

16

July

a240

230

a210

195

198

199

194

188

October. .......................

The period. ..................

Aug.

n?

117

119

118

114

114

112

109

Sept.

89

87

86

86

86

86

84

83

Secondfoot-day s

2,844

-

Oct.

94

93

93

93

93

93

91

Day

17

18

19

20

21

22

23

24

101

-

July

181

175

174

174

168

164

16O

155

Aug.

107

105

104

103

101

101

103

1O3

88

-

Sept.

36

87

86

86

87

86

87

86

Oct.

90

90

9O

88

89

90

9O

88

91.7

-

Day

26

27

28

29

30

31

Per 

mile

.382

-

July

149

13^

145

150

149

145

146

Aug. ~ioT

100

99

98

96

96

80

Sept. WT

88.

96

94

93

90

-

Oct.

90

90

90

91

90

90

96

Runoff

Inches

.53

.44

-

Ac re- feet

5,640

29,690

a Ho gage-height record; discharge computed on basis of records for nearby stations.

Little Spokane River at Chattaroy, Wash.

Location.- Staff gage, lat. 47°53'30", long. 117°21'30", NE£ sec. 34, T. 28 N., R. 43 E, 

at Chattaroy, 200 feet downstream from county road crossing and 300 feet upstream from 

Deer Creek.

Drainage area.- 276 square miles.

Records available.- July to Octoter 1948 (discontinued).

Extremes.- Maximum discharge during period not determined probably occurred July 1; minimum observed, 94 second-feet Aug. 31 (gage height, 0.28 foot).

Remarks.- Records good. Gage read once daily Some diversion for irrigation.

Discharge, in second-feet, July to October 1948

Day

1 

2 

3 

4 

5 

6 

7 

8

July

a30O 

a290 

a280 

a270 

a280 

a29O 

a29O 

a280

Aug.

163 

158 

153 

146 

141 

139 

138 

135

Sept.

102 

107 

107 

1O6 

104 

1O3 

104 

1O3

Oct,

106 

104 

104 

106 

107 

107 

107 

107

Day

9

10 

11 

12 

13 

14 

15 

16

July

264 

256 

248 

239 

231 

223 

219 

211

~Month

July 

Augu 

Sept 

0«to

Th

St. ........ . . . . . . ember 

ber..

e period ....................

Aug.

133 

135 

135 

136 

133 

131 

128 

125

Sept.

104 

103 

103 

102 

1OO 

99 

97 

96

Secondfoot days

6,871 

3,976 

3,090 

3,205

-

Oct.

106 

106 

1O6 

106 

1O6 

1O4 

103 

102

Day

17 

18 

19 

20 

21 

22 

23 

24

Maximum

3OO 

163 

110 

1O7

-

a Ho gage-height record; discharge computed on basis

July

2O3 

197 

197 

195 

191 

187 

180 

176

Aug.

124 

122 

125 

119 

118 

118 

122 

119

Minimum

158 

94 

96 

1OO

-

Sept.

103 

102 

102 

1OO 

1OO 

99 

103 

102

Mean

Oct.

1O2 

102 

1O2 

102 

102 

102 

1OO 

1OO

222 

128 

1O3 

103

-

Day i

25 

26 

27 

28 

29 

3O 

31

Per 

square 

mile

0.8O4 

.464 

.373 

.373

-

ruly

172 

159 

16? 

161 

167 

172 

174

Aug.

118 

116 

114 

113 

113 

112 

94

Sept.

100 

107 

HO 

1O9 

107 

1O6

Oct.

1OO 

10O 

100

100

100

102 

104

Runoff

Inches

O.93 

.54 

.42 

.43

.

Acre-feet

13,630 

7,890 

6,130 

6,360

34,O1O

of records for nearby stations.

939922 O- 51 - 20
296 SPOKANE RIVER BASIN

Little "Spokane River at Dartford, Wash.

Location.- Staff gage, lat. 47°47'15". long. 117°25'00", In NE£ sec. 6, T. 26 N., R. 43 

E., 50 feet downstream from highway bridge at Dartford and 6 miles upstream from

mouth.

Drainage area.- 626 square miles.

Records available.- April 1929 to September 1932, December 1946 to September 1948.

Extremes.- Maximum discharge observed during year, 1,640 second-feet May 24 (gage height, 

4.27 feet); minimum observed, 129 second-feet Oct. 1 (gage height, 1.44 feet).

1929-32, 1946-48: Maximum discharge observed, 1,670 second-feet Feb. 27, 1932 

(gage height, 4.30 feet); minimum observed, 63 second-feet July 24, 1930 (gage height, 

1.07 feet).

Remarks.- Records good. Gage read once daily. Some diversions for irrigation. No regulation.

Revisions.- W 1092: Drainage area.

Discharge, in second-feet, water year October 1947 to September 1348

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

129

136

140

138

138

136

140

138

144

154

172

166

156

147

174

188

210

230

248

266

270

248

237

213

194

200

204

216

207

226

220

Nov.

213

223

237

248

233

233

220

210

213

220

213

207

200

204

207

207

200

210

207

200

194

188

194

183

177

177

183

197

191

197

-

Dec.

194

200

200

207

194

188

188

191

183

183

180

186

194

188

197

200

207

278

293

317

293

270

262

255

248

248

240

262

270

278

274

Jan.

285

289

313

293

309

359

700

784

676

552

460

351

334

317

293

285

270

278

285

285

262

270

282

285

262

248

237

226

226

233

248

Montb

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1947-48 ..........

Feb.

240

233

226

213

213

207

220

220

207

220

200

213

213

200

248

351

640

1,310

596

460

403

712

490

585

748

1,380

892

618

574

_

-

Secondfoot-days

5 , 785

6 ,186

7,068

80,371

10,497 

13 032

12,935

25,491

36,466

21,315

10,274 

5,991

5,067

160,107

Mar.

510

490

460

421

398

376

376

342

351

342

359

351

342

359

351

368

394

403

394

376

385

412

450

440

460

450

480

460

520

541

574

Maximum

270

*>JQ

£%O

317

596

784

1 '574 380

1,350

1,620

946 

470

233

207

1,620

Apr.

624

640

676

652

676

688

664

629

640

676

629

652

607

585

607

796

1,190

1,350

1,260

1,110

1,150

1,100

1,070

1,020

1,060

1,040

952

856

940

952

May

910

880

976

1,060

1,140

1,110

1,200

1,140

1,230

1,190

1,180

1,360

1,530

1,450

1,330

al,250

al,200

al,150

al.100

1,040

1,060

1,090

1,480

1,620

1,290

1,190

1,100

1,020

1,070

1,110

1,010

Minimum

129

177

ISO

104

226

200

342

585

880

490

233

166

156

129

June

946

916

892

856

832

802

682

646

602

646

736

880

820

676

607

736

748

748

652

676

718

766

676

676

640

629

580

541

500

490

-

Mean

107

206

228

220

339

A A Q

**!»

417

850

1,176

710 

331

193

169

437

July

470

430

430

412

430

450

440

430

412 39'

372 35-*

33*

32'

317

30"

30"

29,^

28!>

28!>

2ft^

27.">

26?

25,7 25^

244

237

23,T

270

248

240

Per 

square 

mile

0* 299

329

 364

.351

.542

.717

 666

1.36

I O0RQ

1,13 

.529

.308

.270

.698

Aug.

233

213

220

207

200

197

200

204

200

200

197

207

207

200

200

207

197

194

188

163

177

172

163

183

186

183

177

172

172

166

166

Sept.

164

164

166

164

168

164

161

164

166

161

164

164

161

156

159

156

156

159

159

161

166

166

169

172

174

180

194

200

204

207

-

Runoff

Inches

0.34

.37

.42

4.79

 62

.77

.77

1.51

2.17

1.27 

.61

.36

.30

9.51

Aore-feet

11,470

12,270

14,020

159,400

25,850 

25,660

50,560 

7? £ t OOV x<n

42 t 280

20,380 

11,880

10,050

317,600

a No gage-height record; discharge computed on basis of records for nearby streai-'
SPOKANE RIVER BASIN 39?

Little Spokane River near Dartford, Wash.

Water-stage recorder, lat. 47°47'00", long. 117°29'30", in Wi sec. 3, T. 26 

, 7 42 E., at county bridge 3 miles upstream from mouth and 4 miles west of Dartford.

Drainage area.- 654 square miles.

Records available.- April to §tp%«iber 1948.

Extremes. 3 Jfe*i»\ffl discharge during period, 1,960 second-feet (supersedes figure shown 

!P=&vipply Paper 1080) May 84 (gage height, 7.12 feet); minimum, 404 secondiig, 31, Sept. 1 (gage height, 3.27 feet).

HeeordB good. Many small diversions for irrigation above station.

! in e«QOnd-f«et. water year October 1947 to September 1948

«9 fet,

,

g

g

4

8

6

7

8

9

LO

11

12

13

II

11

I

I

SO

11

18

83

84

85

86

87

88

89

50

5J

He*, B«o. Jan.

Month

stober ...........,,,.,,,,,,,.

»Y?>»!?«r ,....,...,,,,,.,,,.,,..,

Berber .,,,,,.,.,............

Miuftry

pril ......................... iy ...........................

one ..........................

ugumt ........................

aptanber ..............,,,,,,.

The per.ia4t ... t .... t >.

Feb.

Seoond-

-

30,668 

42,310

28,351

1 i 7 /, 1C9 fBc

15,514

12,406

-

Mar.

Maximum

-

1,460 

1,830

1,800

726

487

432

-

Apr.

a 340

aS60

a880

a900

8900

a900

890

690

865

875

905

923

900

870 

850

865

940

1,290

1,460

1,300

1,230

1.190

1,190

1,170

1,200

1,220

1,150

1,080

1,050

1,080

-

May

l.OSO

1,030

1,020

1,120

1,330

1,860

1,300

1,350

1,480

1,560

1,500

1,460

1,550

1,750 

1,610

1,530

1,450

1,380

1,330

1,280

1,230

1,220

1,370

1,330

1,640

1,420

1,330

1,260

1,290

1,480

1,370

Minimum

-

S40 

1,020

746

470

411

406

-

June

1,200

1,110

1,060

1,060

1,090

1,050

970

910

870

840

885

1,020

1,050

946 

885

880

1,010

1,010

928

880

870

958

970

916

900

895

850

810

782

746

-

Mean

-

1,022 

1,381

945

573

436

414

-

July

726

702

673

659

659

689

694

686

664

636

616

601

584

567 

555

546

535

524

519

522

518

509

500

492

484

4SO

470

485

497

488

482

Per 

square 

mile

-

1.56 

2.11

1.44

.876

.667

.633

-

Aug.

487

473

465

458

453

449

447

445

443

442

440

441

440

437 

435

431

430

435

426

425

423

422

423

422

420

419

419

419

418

416

411

Sept.

406

410

411

411

411

411

410

410

410

410

409

408

408

407 

408

408

413

415

415

413

412

413

414

417

415

423

427

432

427

422

-

Runoff

Inches

-

1.74 

2.43

1.61

1.01

.77

.71

-

Acre-feet

-

60,830 

84,910

56,230

35,230

26,800

24,610

288,600

a He gage-height record; discharge computed on basis of records for nearby stations. 

of dally discharge May 1 to July 31 supe 

May-June, 1943, In Columbia River Basin." lowr"*iooa» Note.- Figum of" of dally discharge May 1 to July 31 supersede those published in Water-Supply Paper ~ ------ _ . ..
298 SPOKANE RIVER BASIN

Wethey Creek near Deer Park, Wash.

Location.- Water-stage recorder, lat. 47°53'00", long. 117°28'30", in NW£ sec. 35, T. 28 

w., H. 42 E., a quarter of a mile upstream from mouth and 5 miles south of Deer Park.

Drainage area.- 8.8 square-miles.

Records available.- July to October 1948 (discontinued).

Extremes.- Maximum discharge during period, 4.2 second-feet Sept. 27 (gage height, 1.48 

reet, from recorded range in stage); minimum, 0.7 second-foot sometime during period 

Aug. 4-11 (gage height, 1.05 feet, from recorded range in stage).

Remarks.- Records good except those for periods of no gage-height record, which are 

fair. No regulation. Some small diversions for irrigation above station.

Discharge, in second-feet, July to October 1948

Day

2 

3 

4 

5 

6 

7 

8

July

2.1

Aug.

1.2 

1.2 

1.2 

1.1 

1.1 

1.1 

1.1

Sept.

.9 

.9

1.0 

1.1 

1.4 

1.2 

1.4

Oct.

2.1 

2.2 

2.3 

2.1 

2.1 

2.3 

2.1

Day

10 

11 

12 

13 

14 

15 

16

July

1.9 

1.9 

1.7 

1.7 

1.6 

1.6 

1.6

Month

July 

Augu 

Septe 

Octol

The

8-31

>mber 

jer 1

' per

-26...... ............

Lod.. ............. . .

Aug.

1.1 

1.1 

1.1 

1.2 

1.1 

1.1 

1.1

Sept

1.3 

1.5 

1.3 

1.5 

1.3 

1.5 

1.6

Secondfoot-days

38.9 

36.2 

49.1 

54. .7

-

Oct.

2.1 

2.0 

2.0 

2.1 

2.1 

2.0 

2.0

Day

18 

19 

20 

21 

22 

23 

24

Maximum

2.1 

1.6 

3.5 

2.3

-

July

1.6 

1.6 

1.6 

 1.6 

1.5 

1.4 

1.5

Aug.

1.0 

1.0 

1.0 

1.2 

1.2 

1.2 

1.0

Minimum

1.2 

1.0 

.9 

2.0

-

Sept.

1.6 

1.7 

1.8 

1.8 

1.8 

1.9 

2.1

Oct.

2.1 

2.1 

2.1 

2.1 

2.1 

2.2 

2.2

Mean

1.62 

1.17 

1.64 

2.10

-

Day t

26 

27 

28 

29

30 

31

Per 

square 

mile

0.184 

.133 

.186 

.239

-

fuly

1.5 

1.5 

1.9 

1.6 

1.3 

1.2

A-ig.

1.3 

1.6 

1.6 

1.5 

1.2 

1.1

Sept.

2.5 

3.5 

2.2 

2.1 

2.0

Oct.

2.1

Runoff

Inches

0.16 

.15 

.21 

.23

-

Acre-feet

77 

72 

97 

108

354

Note.- Ho gage-height record Aug. 1-11, 13-16, 18, Sept. 8, 18-20, 25-27, Oct. 2, 3j discharge 

computed on basis of recorded range in stage and records for nearby streams.

Deep Creek at Colbert, Wash.

Location.- Water-stage recorder, lat. 47°49'30", long. 117°21'00", SE^ sec. 22, T. 27 N., 

K. 43 E., at highway crossing at Colbert, 2j miles upstream from mouth.

Drainage area.- 31.1 square miles.

Records available.- July to October 1948 (discontinued).

Extremes.- Maximum discharge during period not determined, probably occurred July 1; 

no flow Sept. 14-17.-

Remarks.- Records good. No known regulation. Probably some small diversions for irrigation and domestic water supply.

Discharge, in second-feet, July to October 1948

Day

1

2

3

4

5

6

7

8

July

aTD

a8.5

a7.5

a6.5

a7.5

a9.0

a8.5

a7,5

Aug.

1.9

2.0

1.7

1.6

1.5

1.4

1.5

1.3

Sept.

0.4

.4

.3

.3

.4

.4

.4

.4

Oct.

1.0

.9

.9

.9

1.2

1.0

1.1

1.1

Day

9

in

11

1?

13

14

15

16

July

a6.5

5.8

5.3

5.1

4.5

4.0

3.7

3.4

Mcnth

July.'...: 1 .............1 .....'....

October 1-25........ ...........

The period. ..................

Aug.

1.3

1.2

1.1

1.4

1.3

1.2

1.1

1.1

Sept.

0.4

.4

.3

.2

.1

0

0

0

Secondfoot-days

144'. 1

22.1

-

Oct.

1.0

1.0

1.0

.8

.8

.8

.8

.7

Day

17

1R

19?n

Kl

??

?3

24

Maximum

10

1.2

-

July

3.1

2.9

3.2

3.4

2.9

2.5

2.2

2.1

Aug.

1.0

.8

.8

.9

.9

1.0

1.0

.8

Minimum

1.9

.7

-

Sept.

0.2

.7

.5

.4

.3

.3

.9

1.0

Oct.

0.7

.8

.8

.8

.8

.8

.9

.8

Mean

4.65

.88

-

Day

25

26

27

28

29

30

31

July

2.0

1.9

2.1

4.3

3.7

2.4

2.1

Per 

square 

mile

0.150

.028

-

AU7.

0.8

.8

.6

.5

.5

.5

.4

Sept.

0.8

1.1

2.2

1.7

1.1

1.0

.

Oct.

0.7

-

.

_

_

_

_

Runoff

Inches

0.17

.03

-

Acre-feet

286

44

430

a Ho gage-height record; discharge computed on basis of records for nearby at:
OKANOGAN RIVER BASIN 299

Okanagan River at Okanagan Falls, British Columbia 

(International gaging station)

Location.- Water-stage recorder, lat. 49°2l'1 , long. 119°35', 400 feet downstream from Tails

 at Okanagan Falls, British Columbia, and 800 feet downstream from Dog Lake.

Drainage area.- 2,550 square miles.

Records available.- October 1930 to September 1948 in water-supply papers of Geological Survey!March 1915 to September 1930 in bulletins of Canadian Department of Resources and 

Development.

Average discharge.- 33 years, 470 second-feet.

Extremes.- Maximum discharge during year, 1,550 second-feet June 18 (gage height, 3.19 feet);

 minimum, 114 second-feet Mar. 21 (gage height, 0.91 foot).

1915-48: Maximum discharge observed, 2,680 second-feet June 10, 1928; minimum observed, 4.6 second-feet Mar. 14, 1931.

Remarks.- Diversions above station for irrigation. Flow regulated by control dam at outlet 

or Okanagan Lake.

Cooperation.- This station is one of the international gaging stations maintained by Canada 

under agreement with the United States.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

1.0 140 1.6 370 2.5 940 

1.2 202 1.9 530 2.8 1,180 

1.4 276 2.2 715 3.2 1,560

Discharge, In second-feet, Mater year October 1947 to September 19 M)

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.

346 

321 

316 

303 

303

294 

285 

272 

272 

276

268 

261 

261 

257 

249

249 

246 

253 

257 

257

249 

242 

238 

231 

224

a221 

a218 

h216 

216 

209 

213

Nov.

220 

216 

220 

220 

216

213 

216 

238 

246 

253

265 

268 

272 

268 

290

290 

290 

298 

298 

303

308 

303 

303 

a306 

a309

a312 

a315 

a318 

321 

316

Dec.

326 

321 

341 

336 

331

341 

331 

326 

350 

365

390 

400 

a412 

a423 

a434

a446 

a458 

a469 

a480 

h492

h492 

480 

480 

480 

475

475

475 

475 

480 

486 

475

Jan.

475 

475 

480 

486 

492

497 

502 

502 

502 

530

566 

602 

626 

656 

670

682 

696 

696 

702 

708

708 

715 

722 

715 

708

715 

715 

715 

722 

729 

663

Feb.

626 

572 

502 

475 

410

385 

380 

350 

346 

346

331 

312 

294 

290 

285

276 

276 

285 

280 

268

265 

265 

261 

253 

242

238 

220 

220 

206

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1947 

az*y

ember. ..................................

ter year 1947-48 .......................

Mar.

196 

202 

189 

176 

173

164 

161 

164 

164 

152

149 

149 

158 

164 

161

161 

158 

158 

155 

152

140 

155 

152 

152 

158

161 

170 

189 

202 

209 

216

Apr.

227 

234 

253 

249 

253

257 

261 

272 

298 

336

355 

370 

395 

431 

464

470 

480 

497 

502 

524

536 

554 

572 

572 

590

596

590 

602 

638 

663

Secondfoot-days

8,023 

8,211 

13,045

107,016

19,372 

9,459 

5,210 

13,041 

28,009 

41,120 

41,930 

43,340 

41,820

272,580

May

670 

656 

656 

670 

670

689 

708 

708 

708 

708

708 

715 

743 

757 

764

778 

792 

808 

815 

822

860 

924 

980 

1,120 

1,200

1,240 

1,410 

1,480 

1,480 

1,410 

1,360

Maximum

346 

321 

492

689

729 

626 

216 

663 

1,480 

1,530 

1,400 

1,440 

1,450

1,530

June

1,320 

1,290 

1,240 

1,220 

1,200

1,210 

1,220 

1,210 

1,210 

1,240

1,260 

1,320 

1,360 

1,360 

1,380

1,420 

1,490 

1,530 

1,520 

1,500

1,480 

1,500 

1,510 

1,520 

1,510

1,480 

1,420 

1,400 

1,390 

1,410

July

1,400 

1,390 

l',38C 

1.39C 

1,38C

1.37C 

1.39C 

1,39C 

1,39C 

1.39C

1.38C 

1.38C 

1,37C 

1,370 

1,360

1,350 

1,360 

1,360 

1,360 

1,350

1,330 

1,320 

1,320 

1,290 

1,280

1,280 

1,300 

1,320 

1,320 

1,330 

1,330

Aug.

1,330 

1,340 

al,340 

al,350 

al,350

al,360 

hi, 360 

1,380 

1,380 

1,370

1,380 

1,380 

1,390 

1,390 

1,420

1,440 

1,430 

1,430 

1,420 

1,400

1,420 

1,430 

1,420 

1,420 

1,430

1,420 

1,420 

1,430 

1,430 

1,440 

1,440

Minimum M'ln

209 259 

213 274 

321 421

114 293

475 625 

206 326 

140 168 

227 435 

656 904 

1,200 1,370 

1,280 1,350 

1,330 1,400 

1,360 1,390

 140 745

Sept.

1,440 

1,440 

1,450 

1,430 

1,440

1,430 

1,420 

1,410 

1,390 

1,400

1,400 

1,400 

1,390 

1,390 

1,380

1,380 

1,370 

1,360 

1,360 

1,370

1,360 

1,370 

1,360 

1,370 

1,380

1,370 

1,360 

1,380 

1,410 

1,410

Runoff In 

acre-feet

15,910 

16,290 

25,870

212,300

38,420 

18,760 

10,330 

25,870 

55,560 

81,560 

83,170 

85,960 

82,950

540,600

a No gage-height recordj discharge interpolated, 

h Computed from staff-gage readings.
300 OKANOGAN RIVER BASIN

Osoyoos Lake near Orovllle, Wash-. 

(International gaging Station}

Location.- Water-stage recorder, lat. 48°59'15", long. 119°27'15", In lot 1, sec. 8, T. 

40 N., R. 27 E., on west shore, 1'mlle south of international boundary and 3 miles 

north of Orovllle. Datum of gage is at mean sea level, datum of 1929.

Drainage area.- 3,250 square miles.

Records available.- July 1928 to September 1948.

Extremes.- Maximum elevation during year, 916.74 feet May 31; minimum, 910;4S fteSt

1928-48: Maximum elevation, that of May 31, 1948; minimum, 9D8i6l ?e&t dot. 14,

1929

Flood of May 29, 1894, reached an elevation of 918,8 feet i&.5 foot, 1 mile below 

present lake outlet, from floodmark on old Okanogan Motel 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 Zozel's mill in Oroville. Okanogan River subject to natural regulation by 

several lakes and to artificial regulation by Okanagan Lake as an aid to navigation.

Cooperation.- aperatlon.- This This station station IB is one one or of the the inte international gaging stations maintained by the

United states under agreement with Canada.

Elevation, In feet, water year October 1947 to September 1946

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IT

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Dot.

911.48

911.46

911.46

911.48

911.47

911.44

911.38

911.33

911.30

911.28

911.25

911.22

911.18

911.16

911.14

911.13

911.10

911.11

911.11

911.11

911.10

911.08

911.07

911.05

911.03

911.03

911.03

911.03

911.03

911.01

911. OO

Nov.

910.98

910.97

910.95

910.93

910.93

910.92

91O.93

910.94

910.93

910.93

910.94

910.95

910.94

910.93

91O.92

910.91

910.90

910.91

91O.90

910.91

910.89

910.87

910.87

910.88

910.39

910.90

910.90

910.91

910.92

910.92

-

000.

910.94

910.92

910.95

910.97

910.96

910.95

910.96

910.96

910.97

910.97

910.97

910.97

911.00

911.03

911.04

911.05

911.08

911.08

911.08

911.03

911.08

911.09

911.10

911.11

911.11

911.12

911.12

911.13

911.14

911.14

911.08

Jan.

911.07

911.05

911.01

910.98

910.93

910.92

910.91

910.90

91O.87

910.87

910.86

910.85

910.85

910.85

910.86

910.68

910.90

910.92

910.95

91O.97

91O.99

911.01

911.04

911.06

911.06

911.06

911.08

911.08

911.10

911.10

911.10

r«b.

911.12

911.11

911.05

911.04

911.01

910.93

910.88

910.66

910.80

910.76

910.72

910.68

910.63

910.60

910.58

910.54

910.53

910.54

910. 52

910.53

910.48

910.50

910.52

910.55

910.68

910.79

910.90

910.99

911.10

-

-

Mar.

911.19

911.30

911.37

911.44

911.48

911.45

911.39

911.32

911.25

911.15

911.06

911.00

910.96

910.91

910.86

910.83

910.79

910.76

910.74

910.75

910.75

910.76

910.79

910.82

910.85

910.86

910.90

910.93

910.98

911.01

911.06

Apr.

911.10

911.15

911.24

911.23

911.16

911.13

911.07

911.04

911.03

911.01

910.96

910.97

910.97

910.97

910.97

911.00

911.10

911.18

911.27

911.36

911.43

911.46

911.44

911.40

911.38

911.34

911.31

911.30

911.40

911.51

-

Hay

911.59

911.63

911.66

911.71

911.70

911.75

911.77

911.78

911.75

911.76

911.75

911.70

911.70

911.71

911. 7O

911.70

911.70

911.73

911.75

911.75

911.80

911.68

912.01

912.21

912.57

913.12

913.77

914.61

915.59

916.40

916.73

June

916.60

916.26

915.88

915.57

915. 29

915.05

914.88

914.75

914.65

914.61

914.59

914.56

914.52

914.37

914.20

914.08

914.04

914.04

914.00

913.85

913.72

913.59

913.47

913.32

913.15

913.00

912.85

912.71

912.60

912.48

-

July

912. 3<

912.22

912.13

912. OS

912.01

911. 9-»

912.02

912.06

912. 11

912.14

912.1?

912.1?

912.21

912.2'

912. ! »

912.17

912.1*

912.11

912. 11 912. » >

912. O7

912. OT

912.0'

912.01

911. 9"

911.9'

912.0*

911. 9f>

911.9*

911.91?

911. 9P

AUK.

911.98

911.96

911.99

912.02

912.04

912.07

912.13

912.16

912. BO

912.23

912.25

912.27

912.29

912.30

912.34

912.39

912.41

91?. 43

912.45

912.45

912.45

912.45

912.45

912.45

912.46

912.46

912.48

912.48

912.48

912.48

912.46

Sept.

912.44

912.43

912.43

912.42

912.41

912.40

912,39

918. S9

912.38

912.38

912.38

912.88

912.36

912.33

912.34

912.34

912.36

912.36

912.36

912.35

912.34

912.35

912.34

912.32

912.30

912.26

912.26

912.26

912.27

912.25
OKANOOAN RIVER BASIN 301

Okanogan River at Oroville, Wash.

Location." Water-stage recorder; lat. 48°56', long. 119°51, in SW£ sec. 27, T. 40 N., R. 

27 fi., in Oroville, half« mile downstream from Tonasket Creek and 1? miles downstream 

from Osoyoos Lake. Datum of gage is' 900 feet above mean sea level, datum of 1929.

Records available.- October 1942 to September 1948.

Extremes.- Maximum discharge during year, 3,430 second-feet June a; maximum g?ge height, 

ib.t>u feet May 31 (backwater from Similkameen River); maximum daily reverse flow, 

2,270 second-feet May 29; minimum gage height, 3.98 feet Mar. 1.

1942-48: Maximum discharge observedj that of June 2, 1948; maximum gage height, 

that of May 31, 1948; maximum daily reverse flow, that of May 29, 1948.

Remarks.- Records good except those for periods of ice effect and backwater from SimilKameen River, which are fair. Diversions in Canada for irrigation. Naturrl regulation 

in several large lakes and artificial regulation in Okanagan Lakes as an aid to 

navigation and pondage back of Zosell's mill dam at Oroville, 200 feet above gage.

Discharge, in second-feet, water year October 1947 to September 1946

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

361 

356 

342 

366. 

361

421 

442 

421 

416

411

400 

390 

385 

38O 

366

366 

356 

361 

371 

366

366 

356 

347 

342 

333

336 

342

338 

376 

390 

385

Nov.

3S5 

38O 

3SO 

342 

320

320 

320 

324 

316 

320

324 

352 

376 

371 

376

376 

371 

390 

3SO 

395

390 

385 

385 

385 

385

385 

390 

390 

385 

390

Dec.

406 

390 

400 

421 

406

400 

406 

406 

411 

411

416 

416 

 421 

432 

442

437 

488 

519 

526 

519

513 

513 

513 

519 

500

500 

500 

506 

513 

571 

6O7

Jan.

614 

621 

614 

614 

592

592 

592 

585 

571 

578

578 

571 

564 

571 

585

592 

600 

607 

621 

635

643 

651 

651 

674 

682

682 

 682 

690 

690 

697 

705

Feb.

722 

730 

690 

690 

697

b671 

b644 

b618 

b591 

b564

b538 

b512 

b485 

f459 

442

432 

395 

4OO 

385 

361

361 

366 

234 

92 

33

 12 

»5

4 

»4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febi 

Marc 

Aprl

M»v

June 

Julj 

Augv 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

3

5 

34 

101 2O2

412 

488 

494 

488 

471

465 

448 

448 

432 

390

356 

356 

352 

258 

210

207 

207 

199 

180 

180

180 

ISO 

188 

191 

188 

191

Apr.

1S8 

191 

334 

455 

513

506 

444 

376 

395 

395

395 

39O 

395 

395 

395

335 

235 

290 

298 

344

437 

659 

765 

739 

739

722 

713 

705 

739 

765

Secondfoot-days

11,551 

10,988 

14,428

123,739

19,344 

12,137 

8,504 

14,252 

21,468 

73,630 

46,790 

45,130 

44,460

322,682

Hay

791 

800 

872 

944 

926

1,050 

1,140 

1,130 

1,120 

1,120

1,250 

1.3OO 

1,300

1,300 

1,300

1,300 

1,300 

1,340 

1.34O 

1,340

1,380 

1,330 

1,OOO 

1,190 

-815

-1,07O 

-1,170 

-1,570 

-2,270 

-1,840 

2,340

Maximum

442 

395 

607

864

705 

730 

494 

765 

2,340 

3,390 

1,870 

1,550 

1,550

3,390

June

3,190 

3,390 

3,200 

2,970 

2,800

2.45O 

2,260 

2,050 

1,800 

2,O70

2,07O 

2,150 

2,590 

2.69O 

2,660

2,570 

2,380 

2,360 

2,590 

2,670

2,580 

2,510 

2,480 

2,450 

2,350

2,250 

2,190 

2,020 

1,960 

1,930

July

1,870 

1,800 

Ij780 

1,710 

1,670

1,550 

1,470 

1,510 

1,510 

1,510

1,510 

1,510 

1,510 

1,550 

1,550

1,510 

1,510 

1,470 

1,470 

1,47O

1,430 

1,430 

1,430 

1,430 

1,380

1,380 

1,430 

1,380 

1,380 

1,340 

1,340

Minimum

333

316 

390

7

564

4 

3 

188 

-2,270 

1,800 

1,340 

1,340 

1,430

-2,270

Aug.

1,340 

1,340 

1,340 

1,342 

1,340

1,380 

1,380 

1,380 

1,430 

1,430

1,43O 

1,430 

1,430 

1,430 

1,430

1,470 

1,470 

1,470 

1,510 

1,550

1,550 

1,550 

1,550 

1,550 

1,550

1,510 

1,510 

1,510 

1,510 

1,510 

1,510

Mean

373 

366 

465

339

624 

419 

274 

475 

693 

2,454 

1,509 

1,456 

1,482

882

Sept.

1,510 

1,470 

1,510 

1,510 

1,510

1,510 

1,510 

1,470 

1,470 

1,470

1,470 

1,470 

1,470 

1,430 

1,430

1,430 

1,430 

1,430 

1,470 

1,430

1,430 

1,470 

1,470 

1,510 

1,510

1,470 

1,550 

1,550 

1,550 

1,550

Runoff in 

acre-feet

22,910 

21,790 

28,620

245,400

38,370 

24,070 

16,870 

28,270 

42,580 

146,000 

92,810 

89,510 

88,190

640,000

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

f Computed on basis of partly estimated gage-height record.

Note.- Backwater from SimLlkameen River May 21 to July 3; discharge computed on basis of gage-height 

record and fall. Negative sign Indicates reverse flow.
302 OKANOGAN RIVER BASIN

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. 

3b fll., R. 27 E., 1,000 feet upstream from Chewiliken Creek and fa"J miles south of 

Tonasket.

Drainage area.- 7,250 square miles.

Kecords available.- April 1929 to September 1948; May 1911 to September 192f (equivalent 

records at site a quarter of a mile upstream from Salmon Creek at Okanogar, published 

as Okanogan River at Okanogan) in reports of Geological Survey. June 1911 to September 1933 (monthly records only) in State Water-Supply Bulletin fa.

Average discharge.- 33 years (1911-25, 1929-48), 2,733 second-feet.

Extremes.- Maximum discharge'during year, 40,900 second-feet May 31 (gage height, 21.79 

reet, from floodmark); minimum, 479 second-feet Mar. 4 (gage height, 4.43 feet).

1911-25, 1929-48: Maximum discharge, that'of May 31, 1948; minimum recorded, 126 

second-feet Sept. 5, 1931 (gage height, 3.43 feet).

Remarks.- Records good except those for periods of shifting control, which are fair and 

those for period of ice effect, which are poor. 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 1947-48, except periods of ice effect or shifting cortrol 

(gage height, In feet, and discharge, In second-feet)

4.4 

4.7 

5.0 

5.5 

6.0 

6.5

466

604

760

1,090

1,490

1,940

7.0

7.5

8.0

9.0

10.0

11.0

2,440

2,990

3,590

4,990

6,690

8,500

12.0

13.0

14.0

16.0

18.0

20.0

10,400

12,600

15,000

20,400

26,700

55,800

Discharge, In second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

760 

76O 

733 

760 

817

1,050 

1,250 

1,250 

1,210 

1,170

1,130 

1,130 

1,090 

1,030 

1,130

1,170 

1,210 

1,210 

1,290 

1,370

1 , 720 

1,620 

1,410 

1,330 

1,250

1,210 

1,210 

1,370 

1,450 

1,450 

1,410

Nov.

1,410 

1,370 

1,450 

1,450 

1,370

1,290 

1,250 

1,250 

1,250 

1,290

1,250 

1,250 

1,250 

1,250 

1,210

1,170 

1,170 

1,130 

1,170 

1,170

1,170 

1,130 

1,050 

1,050 

1,090

1,099 

1,130 

1,170 

1,210 

1,210

Dec.

1,130 

1,150 

1,250

1,210 

1,210

1,210

1,090 

1,050 

1,050 

1.O9O

1,090 

1,050 

1,050 

*1,090 

1,170

1,250 

1,210 

1,250 

1,250 

1,290

1,250 

1,210 

1,210 

1,210 

1,210

1,250 

1,290 

1,250 

1,250 

1,250 

1,330

Jan.

1,370 

1,370 

1,370 

1,330 

1,290

1,290 

1,290 

1,290 

1,250 

1,210

1,170 

bl,140 

bl,120 

bl,120 

bl,130

bl,150 

1,170 

1,210 

bl,230 

bl,240

bl,260 

1,290 

1,370 

1,450 

1,450

1,370 

1,250 

bl,210 

bl,190 

*bl,210 

1,250

Feb.

1,290 

1,370 

1,330 

bl,280 

bl,210

1,130 

1,090 

bl.080 

bl,070 

1,050

1,020 

bl,080 

1,130 

1,170 

1,170

1,130 

1,290 

1,370 

1,110 

1,020

945 

1,020 

1,020 

817 

733

680 

654 

S29 

580

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

*556 

561 

533 

492 

510

680 

912 

1,020 

1,020 

980

980 

945 

945 

945 

912

879 

817 

879 

912 

706

649 

639 

629 

634 

619

S04 

609 

634 

654 

654 

680

Apr.

680 

706 

760 

980 

1,130

1,170 

1,130 

980 

945 

980

980 

945 

980 

980 

945

945 

879 

945 

1,330 

1,580

1,800 

2,190 

2,830 

3,230 

3,230

3,110 

2,990 

2,990 

3,110 

3,110

Secondroot-days

37,010 

36,700 

36,830

851,695

39,040 

30,468 

23,189 

48,610 

340,320 

613,510 

155,770 

121,780 

91,160

1,574,387

May

2,990 

2,880 

2,880 

2,990 

3,110

3,110 

3,350 

3,980 

4,260 

4,540

4,840 

5,470 

5,980 

6,330 

6,150

6,150 

6,240 

6,620 

7,030 

7,190

7,900 

10,800 

12,700 

14,400 

16,900

20,400 

23,200 

27,000 

32,400 

38,000 

g40,500

Maximum

1,720 

1,450 

1,330

13,200

1,450 

1,370 

1,020 

3,230 

40,500 

37,600 

7,770 

4,540 

3,720

40,500

June

37,600 

32 , 900 

29,400 

27,600 

26,300

25,600 

25,400 

25,500 

25,800 

25,400

27,700 

24.100 

23,000 

21,200 

19,700

19,000 

19,600 

20,500 

19,700 

17,800

16,600 

16,000 

15,000 

13,500 

12,300

11,500 

10,600 

9,640 

9,070 

8,500

July

7.77O 

7,230 

6,690 

6,150 

5,980

5,810 

5,640 

5,980 

6,330 

5,810

5,470 

5,310 

5,150 

4,840 

4,690

4,540 

4,400 

4.26O 

4,260 

4,840

4,990 

4,540 

4,400 

4,120 

4,120

3,850 

3,850 

3,720 

3,720 

3,720 

3,590

Minimum

733 

1,050 

1,050

570

1,120 

580 

492 

880 

2,830 

8,500 

3,590 

3,350 

2,720

492

Aug.

3,470 

3,350 

3,350 

3,470 

3,590

3,980 

3,850 

3,720 

3,590 

3,470

3,470 

3,470 

3,350 

3,350 

3,850

4,120 

4,540 

4,400 

4,260 

4,260

4,260 

4,260 

4,540 

4,540 

4,400

4,540 

4,260 

4,120 

4,120 

3,980 

3,850

Mean

1,194

1,223 

1,188

2,333

1,259 

1.C51 

748 

1,620 

10,980 

2O.45O 

5,025 

3,928 

3,039

4,302

Sept.

3,720 

3,590 

3,590 

3,470 

3,590

3,470 

3,350 

3,350 

3,230 

3,110

3,110 

2,990 

2,990 

2,830 

2,880

2,770 

2,880 

2,880 

2,770 

2,770

2,720 

2,720 

i, 720 

2,770 

2,770

2,770 

2,770 

2,770 

2,880 

2,880

Runoff In 

acre-feet

73,410 

72,790 

73,050

1,689,000

77,430 

60,430 

45,990 

96,420 

675,000 

1,217,000 

3O9 , OOO 

241,500 

180,800

3,123,000

* Winter discharge measurement made on this day.

b Stage-discharge "relation affected by Ice.

g Stage above limit of float operation; computed partly from graph based on observed gage heights.

Note.- Shifting-control method used Oct. 21 to Feb. 25.
OKANOGAN RIVER BASIN 303

Similkameen River near Nighthawk, Wash. 

(International gaging station)

Location.- Water-stage recorder, lat. 48°59'10", long. 119°37'00", in NVl£ sec. 7, T. 40

N., ti. 26 E., about li miles downstream from Nighthawk and 12 miles upstream from

mouth.

Drainage area.- 3,420 square miles. 

Kecoras available.- September 1928 to September 1948. May 1911 to September 1928 (mean

^monthly discharge including that of Oroville-Tonasket Irrigation District canal) at

site 4 miles upstream from O'roville, published as Similkameen River near Oroville. 

Average discharge.- 37 years, 2,114 second-feet. 

extremes. - Maximum discharge during year, 38,700 second-feet May 30 (gage ! eight, 17.62

feet); minimum, 201 second-feet Feb. 6 (gage height, 2,56 feet).

1928-48: Maximum discharge, that of May 30, 1948; minimum, 120 second-feet Jan. 6,

1930 (gage height, 2.05 feet). 

Remarks.- Records good except those for periods of no gage-height record, vhich are fair,

and those for periods of ice effect, which are poor. Flow at high stages regulated by

natural diversion into 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 with Canada.

Rating table, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

Z.8 292 5.0 1,870 10.0 10,500 

3.0 378 5.5 2,430 11.5 14,600 

3.3 519 6.0 3,040 13.0 19,700 

3.6 684 7.0 4,430 14.5 25,300 

4.0 950 8.0 6,150 16.0 31,400 

4.5 1,380 9.0 8,170 17.5 38,100

Discharge, in second-feet, water year October 1947 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.

432 

428 

423

470 

684

739 

678 

620 

582 

582

571 

576 

576 

588 

643

684 

690 

758 

804 

1,200

1,200 

1,030 

915 

880 

845

810 

950 

1,160 

1,070 

1,030 

990

Nov.

950 

990 

1,110 

1,030 

950

915 

915 

880 

950 

915

880 

880 

845 

810 

804

758 

758 

758 

764 

758

739 

696 

672 

727 

739

745 

790 

845 

804 

739

Dec.

714 

804 

778 

771 

764

684 

604 

b600 

b604 

b612

620 

620 

*661 

690 

790

733 

696 

702 

702 

684

638 

638 

632 

626 

684

708 

690 

667 

690 

690 

649

Jan.

643 

649 

649 

620 

620

615 

620 

620 

588 

571

524 

494 

442 

387 

365

b355 

b350 

b375 

b405 

b440

b490 

550 

661 

655 

638

524 

461 

392 

*378 

405 

446

Feb.

499 

490 

465 

b420 

b360

326 

b320 

b320 

b330 

369

410 

442 

465 

490 

514

519 

535 

535 

504

b480

509 

529 

535 

535 

535

535 

*529 

519 

509

un«th SecondMonth foot-days

Ootc 

NOVE 

Decs

Ca

Janu 

Febi 

Ms re 

Apri 

May 

June 

Julj 

Augu 

Sept

We

mber ......................

23,608 

25,116 

21,145

Isndar year 1947 ......... 751,717

ary .

nary

h .........................

st ........................

ember .....................

15,932 

13,518 

13,816 

33,938 

45,080 

13,810 

13,710 

81,380 

48,230

ter year 1947-48 .......... 1,249,283

Mar

490 

480 

475 

470 

461

446 

437 

456 

446 

428

418 

423 

432 

442 

432

423

423 

428 

423 

423

423 

428 

442 

451 

432

428 

446 

446 

461 

494 

509

Maximum

1,200 

1,110 

804

14,300

661 

535 

509 

2,550 

38,100 

29,200 

5,780 

3,300 

2,430

38,100

Apr.

509 

519 

545 

535 

524

509 

509 

504 

509 

514

524 

519 

519 

519 

514

539

632 

915 

1,160 

1,290

1,520 

1,980 

2,430 

2,550 

2,430

2,260 

2,140 

2,040 

2,090 

2,200

May

2,090 

2,040 

2,040 

2,090 

2,200

2,310 

2,800 

3,430 

3,560 

3,840

4,280 

4,910 

5,250 

5,250 

5,080

5,250 

5,550 

6,100 

6,350 

6,730

9,030 

11,900 

14,300 

16,200 

20,700

23,300 

27,000 

31,800 

37,000 

38,100 

34,600

Minimum

423 

672 

600

320

350 

320 

418 

504 

2,040 

6,340 

2,260 

2,080 

1,200

320

June

29,200 

25,600 

23 , 900 

23,300 

22,500

22,700 

23,000 

23,700 

23,500 

22,100

22,100 

20,700 

19,600 

17,200 

16,500

16,400 

18 , 000 

18,100 

15,800 

14,200

13,500 

13,100 

11,500 

10,500 

9,510

8,830 

8,170 

7,3,30 

6,930 

6,340

Mean

762 

837 

682

2,059

514 

466 

446 

1,131 

11,130 

17,130 

3,668 

2,625 

1,608

3,413

1948

July

5,780 

5j250 

4,910 

4,590 

4,430

4,430 

4,430 

5,080 

4,910 

4,280

4,130 

3,980 

3,700 

3,560 

3,300

3,170 

3,040 

2,910 

3,300 

3,980

3,560 

3,300 

3,040 

2,910 

Z,8SO

2,610 

2,490 

2,490 

2,610 

2,430 

2,260

Per 

square 

mile

0.223 

.245 

.199

.602

.150 

.136 

.130 

.331 

3.25 

5.01 

1.07 

.768 

.470

.998

Aug.

2,140 

2,140 

2,140 

2,140 

s2,260

a2,400 

a2,300 

a2,220 

a2,160 

a2,140

a2,140 

a2,080 

a2,080 

2,490 

2,790

3,170 

3,300 

3,040 

2,980 

2,850

2,850 

3,100 

3,300 

3,100, 

3,300

3,170 

2,980 

2,850 

2,730 

2,610 

2,430

Sept.

2,430 

2,260 

2,200 

2,260 

2,200

2,090 

1,980 

1,920 

1,820 

1,770

1,670 

1,570 

1,520 

1,470 

1,380

1,420 

1,420 

1,380 

1,380 

1,290

1,290 

1,200 

1,240 

1,290 

1,290

1,240 

1,200 

1,240 

1,340 

1,470

Runoff

Irches

0.26 

.27 

.23

8.18

.17 

.15 

.15 

.37 

3.75 

5.59 

1.24 

.88 

.52

13.58

Acre-fest

46,830 

49,820 

41,940

1,491,000

31,600 

26,810 

27,400 

67',320 

684,500 

1,019,000 

225,500 

161,400 

95,660

2,478,000

» Winter discharge measurement made on this day.

a Nr gage-belgbt record; discharge computed on basis of records for Okanogan Rive" near Tonasket.

b Stage-discharge relation affected by ice.
304 MKTHOW RIVER BASIN

Methow River at Twisp, Wash.

Location.- Water-stage recorder", lat. 48°21'40", long. 120°06'50", In sec. 17, T. 33 N., R. 

22 K., at highway bridge at Twisp and a quarter of a mile downstream from Twisp River.

Drainage area.- 1,330 square miles.

Records available.- June 1919 to September 1929, October 1933 to September 1948.

Average discharge.- 25 years, 1,203 second-feet.

Extremes.- Maximum discharge during year, 40,800 second-feet May 29 (gage height, 12.94 

feet ), from rating curve extended above 3,700 second-feet on basis of slope-area 

measurement; minimum, 245 second-feet Mar. 10.

1919-29, 1933-48: Maximum discharge, that of May 29, 1948; minimum observed, 134 

second-feet Sept. 4, 5, 1926, Sept. 9, 10, 1929, but may have been less during period 

of ice effect Jan. 6 to Mar. 4, 1937.

Remarks.- Records excellent except those for periods of ice effect, no gage-height record, 

or shifting control, which are fair. Water diverted above station for irrigation by 

two canals of Methow Valley Irrigation District, by Risley ditch, and by many other 

ditches.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

18 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

315 

333 

356 

352 

347

352 

352 

352 

352 

380

380 

371 

371 

375 

375

395 

441 

478 

545 

586

545 

522 

517 

517 

500

505 

522 

528 

533 

539 

568

Nov.

622 

653 

628 

598 

580

574 

568 

568 

551 

545

539 

528 

522 

505 

505

494 

494 

489 

472 

478

456 

456 

456 

451 

456

478 

500 

505 

505 

517

Dec.

522 

517 

517 

511 

478

456 

483 

467 

472 

441

415 

420 

446 

 441 

441

430 

435 

435 

430 

425

425 

415 

420 

415 

415

405 

395 

385 

380 

356 

375

Jan.

380 

375 

356 

371 

352

375 

375 

366 

333 

366

342 

293 

b270 

b260 

b265

b260 

b255 

b255 

6260 

b260

b280 

*b300 

338 

333 

302

277 

273 

b270 

b270 

289 

298

Feb.

298 

293 

293 

293 

289

265 

307 

293 

289 

281

a275 

a280 

a290 

a300 

a315

a325 

a330 

a320 

a310 

a300

a310 

a310 

a 305 

a300 

3298

298 

289 

289 

285

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Wd

lendar year 194 

ary

ter year 1947-48 .......................

Mar.

285 

281 

277 

277 

273

269 

265 

261 

261 

257

261 

265 

265 

261 

261

261 

261 

261 

265 

265

269 

285 

281 

277 

293

293 

298 

307 

342 

371 

385

Apr.

405 

420 

441 

430 

400

390 

390 

385 

395 

400

390 

385 

385 

395 

410

489 

691 

832 

1,010 

1,170

1,450 

1,820 

1,870 

1,820 i.too

1,550 

1,450 

1,400 

1,500 

1,500

Second - 

foot-days

13,604 

15,693 

13,568

455,413

9,599 

8,630 

8,733 

26,273 

187,629 

239; 550 

61,100 

36,743 

16,940

638,053

May

1,450 

1,350 

1,400 

1,500 

1,450

1,500 

1,650 

1,700 

1,760 

1,920

1,980 

2,160 

2,480 

2,350 

2,280

2,280 

2,390 

2,590 

2,770 

3,180

4,900 

7,000 

8,580 

10,100 

10,700

12,400 

14,800 

18,600 

32,500 

17,900 

10,000

Maximum

586 

653 

522

8,700

380 

330 

385 

1,870 

52,500

11,666

3,140 

1,410 

790

32,500

June

9,050 

8,920

9,220 

9,900 

10,500

10,900 

10,600 

9,840 

10,000 

10,400

11,000 

10,300 

8,780 

8,480 

7,870

9,320 

11,000 

9,180 

7,900 

7,490

6,970 

6,210 

5,590 

5,210 

4,840

4,500 

4,170 

4,010 

3,850 

3,550

Minimum

July

3,140 

2,770 

2,550 

2,340 

2,290

2,550 

2,600 

2,600 

2,340 

2,200

2,100 

2,100 

1,890 

1,810 

1,770

1,730 

1,700 

1,730 

2,100 

2,060

1,970 

1,810 

1,700 

1,620 

1,520

1,430 

1,400 

1,350 

1,350 

1,300 

al,280

315 

45 1 

356

188

255 

265 

257 

385 

1,350 

3,550 

1,280 

820 

460

255

Aug.

al,270 

al,290 

1,350 

1,300 

1,280

1,260 

1,220 

1,180 

1,160 

1,160

1,160 

1,160 

1,160 

"1,180 

1,226

1,410 

1,290 

1,220 

1,290 

1,330

1,290 

1,290 

1,260 

1,180 

1,120

1,080 

1,010 

978 

945 

880 

820

Hesrt

439 

523

438

1,248

310 

298

282 

876 

6,052 

7,385 

1,971 

1,185 

565

1,743

Sept.

790 

760 

705 

700 

656

630 

600 

568 

560 

546

524 

546 

519 

506 

510

510 

506 

494 

482 

474

470 

460 

470 

478 

478

546 

582 

564 

645 

661

Runoff in 

acre-feet

26,980 

31,130 

26,910

903,200

19,040 

17,120 

17,320 

52,110 

372,100 

475,100 

121,200 

72,880 

33,600

1,265,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis Of 1 discharge measurement, wsather records, 

observer's notes, and records for nearby streams, 

b Stage-discharge relation affected by ice. 

Note.- Shifting-control method used Aug. 12-14.
CHEiAN BASIN 305

Stehekin River gfc gtehekin, Kash.

Location.- Water-stage recorder, lat. 48°19'SQ", long, lgO°41'40", in SE| set. 86, £. 3?

 N., H. 17 E., 1,200 feet upstream from Boulder Creek apd 2 wiles ligsttea^ from Lake 

Chelan and Stehekin.

Drainage area.- 372 square miles, including that of Boulder Creek.

Records available.- October 1910 to October 1915, January 1-927 to September 1948 (includes

 flow or Boulder Creek).

Average discharge.- 26 years, 1,313 second-feet.

Extremes.- Maximum discharge during year, 18,900 second-feet (supersedes fig-ir-eg

 in WaterySupply Paper 1080) May 29 (gage height, 29.00 feet), by slope-area ffi 

minimum, 182 second-feet Peb, 17 (gage height, 18.94 feet).

1910-15, 1927-48; Maximum dissharge, that of May 29; minimum, 56 second-feet 

Jan. 21, 1930.

Remarks.- Records excellent except those for periods of shifting cpntrol, which are good, 

ana tnose for periods of ice effect or no gage-height record, ^Jhich are poor. At1 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 fiye dtsc^apge jagasurements furnished by Washington Water Power Co.

Revisions (water years).- W 412: 1914.

Discharge, in second-feet, water year October 1947 te September 1948

Day

1 

2

3

4

5

6 

7 

8 

9

W

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

S77 

1,690 

2,220 

1,500 

1,029

763 

620 

566 

601 

571

525 

514 

670 

560 

577

729 

696 

743 

2,030 

1,230

989 

872 

798 

736 

709

964 

849 

798 

743 

716 

743

Noy.

§20 

763 

709 

664 

620

595 

638 

798 

670 

664

645 

595 

601 

566 

542

514 

514 

497 

469 

454

427 

432 

422 

432 

530

988 

813 

722 

690 

657

Dec.

632 

6O7 

589 

660 

*619

502 

497 

480 

475 

459

448 

432 

464 

469 

459

454 

448 

454 

427 

422

412 

397 

402 

392 

377

363 

358 

349 

349 

339 

344

Jan.

349 

335 

344 

349 

335

335 

326 

308 

313

308 

291 

264 

268 

264

268 

283 

283 

275 

271

 283 

313 

339 

349

321

287 

264 

260 

b260 

b260 

b260

Month

Goto 

Move

Dece

Cn

Jama 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ... ..........

lendar year 194? 

ary

1

- 

ember ..,.,..,,....,.,,..,,

ter year 1947-48 ..........

Feb.

b260 

b25o 

b250 

fe24C 

b240

230 

t»230 

t>23G 

b230 

830

b220 

b220 

b220 

b220 

b220

b220 

220 

358 

308 

287

291 

291 

279 

275 

275

279 

279 

27§ 

271

Secondfoot-days

27,310 

18,451 

13,879

500,015

9,304 

7,398 

8,035 

30,519 

130,130 

183,310 

68,360 

38,596 

19,522

554,814

Mar.

26S 

264 

256 

252 

£52

848 

248 

24$ 

241 

238

234 

250 

227 

224 

224

220 

216 

216 

220 

216

230 

279 

279 

268 

271

27-1 

275 

320 

360 

368 

372

Maximum

2,220 

988 

632

7,320

349 

358 

372 

2,050 

16,400 

10,300 

3,340 

1,900 

946

16,400

Apr.

397 

422 

460 

430 

440

420. 

416 

$9<5 

400

sao

590 

390 

400 

410 

560

900 

1,200 

1,320 

1,500 

1,700

1,900 

2,050 

2,050 

2,000 

1,000

1,700 

1,600 

1,500 

1,600 

i,400

Hay

1,200 

1,000 

1,100 

1,060 

1,100

J,270 

1,40)0

1 46P 

1,556 

1,660

1,750 

1,800 

1,920 

1,800 

1,800

1,800 

2,020 

2,200 

2,260 

2,710

4,050 

5,220 

5,760 

6,320 

7,110

9,090 

11,300 

16,400 

16,000 

8,970 

7,670

Minimum

514 

422 

339

180

260 

220 

216 

380 

1,000 

3,870 

1,570 

946 

460

216

June

6,670 

6,480 

6,870 

6,670 

7,890

8,970 

JO, 300 16; 1,00

9 £40 

9,870

3,310 

6,430 

5,910 

5,550 

5,190

5,550 

5,550 

4,850 

5,020 

5,190

5,020 

4,350 

4,190 

4,030 

3,870

3,870 

4,030 

4,350 

4,510 

4,030

Mean

881 

615 

448

1,370

300 

255 

259 

1,017 

4,198 

6,110 

2.205 

1,245 

651

1,516

July

3,340 

2,840 

2,700 

2,570 

2,310

.2,640 

2,500 

2,13,0

2,250 

2,070 

2,010

2I250

2,500 

2,570 

2,700 

2,500 

2,250

2,190 

2,190 

2,070 

1,730 

1,570

1,570 

1,840 

1,820 

1,680 

1,780

Per 

square 

mile

2.37 

1.65 

1.20

3.68

.806 

.685 

.695 

2.73 

11.3 

16.4 

5.93 

3.35 

1.75

4.08

Peak discharge (base, 5,006 sec. -ft.}.- May 29 (2 a.m.) 18,900 sec. -ft. ; June 1

Aug.

1,840 

1,900 

1,780 

1,900 

1,520

1,320 

1,140 

1,180 

1,280 

1,280

1,23,0 

1,140 

1,140 

1,100 

1,320

1,100 

1,030 

1,100 

1,050 

1,020

1,180 

1,140 

1,040 

1,040 

1,230

1,140 

1,180 

1,180 

1,100 

1,050 " 946

Iifc^es

~2.73~ 

l.jB'4 

1.3$

49.98

.93 

.74 

.80 

3105 

13.01 

18.33

sise

1.95

55.46

111:15

Sept.

818 

782 

946 

761 

670

621 

607 

642 

670 

698

712 

7l2 

684 

698 

775

677 

594 

528 

486 

470

552 

775 

588 

510 

460

516 

552 

740 

6S4 

594

Acre-feet

54,170 

36,60Q 

27,530

991,800

18,450 ' 

14,670

258*100 

363,600 

135,600 

7BJ550 

38,720

1,100,000

p.m.;

11,800 sec.-ft

* Winter discharge measurement made on this day,

b Stage-discharge relation affected by ice.

Mote.- No gage-height record Map. 28, 29, Apr. 3-17, Apr. 19 to Hay 2} disehnrge erinputed on 

of records for Railroad Creek at Uieerne, shifting-eonfcrpl method used Oct. 3, to Apr. 2, Apr. 18. 

Figures of dally discharge Hay l to July 31 supersede those published in Water-Supply Paper 3LD8Q, 

"Floods of May-June, 1948, in Columbia River Basin." " ' *
CHELAN RIVER BASIN

Lake Chelan at Chelan, Wash.

Location.- Water-stage recorder, lat. 47°50'00", long. 120°03'40", In lot C, sec. 15, 

T. 27 N., R. 22 E., 2 miles west of Chelan. Datum of gage is at mean sea level, adjustment of 1912.

Drainage area.- 950 square miles.

Records available.- September 1897 to December 1899, January to June 1905, December 1910 

to September 1948.

Extremes.- Maximum elevation during year, 1,100.00 feet July 11, Aug. 1, 4; minimum, 

1,086.97 feet Apr. 15, 16.

1897-99, 1905, 1910-48: Maximum elevation, 1,100.05 feet July 19, 1£47; minimum, 

1,076.78 feet Jan. 27, 28, Dec. 2, 3, 1898.

Remarks.- Reservoir is formed by low concrete dam at lake outlet completed Sept. 3, 1927. 

capacity, 676,100 acre-feet between 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.

In feet, water year October 1947 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.

94.73

94.70

94.79

94.86

94.87

94.81

a94.75

a94.69

a94.64

a94.63

a94.63

a94.64

a94.64

a94.62

94.60

94.61

94.61

94.66

94.83

94.92

94.94

94.93

94.97

95.02

95.06

95.14

95.18

95.22

95.25

95.30

95.35

Nov.

95.44

95.48

95.49

95.48

95.49

95.50

95.52

95.57

95.58

95.59

95.59

95.56

95.54

95.49

95.46

95.47

95.51

95.48

95.44

95.39

95.35

95.30

95.25

95.24

95.20

95.16

95.16

95.18

95.17

95.20

-

Deo.

95.21

95.16

95.13

95.10

95.05

95.01

94.98

94.96

94.92

94.86

94.80

94.73

94.70

94.68

94.63

94.56

94.54

94.51

94.47

94.41

94.38

94.37

a94.36

a94.32

a94.34

a94.33

a94.30

a94.31

a94.28

94.22

94.16

Jan.

94.17

94.20

94.15

94.16

94.12

94.08

94.07

94.03

93.97

93.94

93.95

93,91

93.82

93.75

93.67

93.58

93.52

a93.47

a93.38

a93.25

92.95

92.91

92.81

92.58

92.32

92.05

91.80

91.60

91.51

91.40

91.30

Feb.

91.22

91.11

a90.88

a90.70

a90.59

390.46

390.34

a90.26

a90.17

90.06

89.95

89.79

89.67

89.57

89.51

89.47

89.38

89.42

89.32

89.25

89.24

89.26

89.26

89.19

89.14

89.12

89.07

89.04

89.04

-

Mar.

89.06

88.99

88.92

88.83

88.76

88.72

88.66

88.55

88.42

88.32

88.26

88.20

88.17

88.12

88.07

88.01

87.92

87.86

87.80

87.70.

87.65

87.60

87.56

87.50

87.48

87.41

87.38

87.38

87.41

87.36

87.32

Apr.

87.27

87.26

87.27

87.27

87.29

87.25

87.20

87.15

57.14

87.11

87.11

87.08

87.05

87.01

86.99

87.01

87.06

87.16

87.25

87.30

87.36

87.50

87.61

87.70

87.85

87.92

87.95

88.00

88.07

88.09

May

88.14

88.16

88.24

88.27

88.29

88.36

88.41

88.49

88.57

88.67

88.76

88.88

89.05

89.18

89.31

89.44

89.62

89.79

89.94

90.14

90.45

90.87

91.38

91.97

92.48

93.12

f94.00

f95.20

96.56

97.08

97.16

June

97.23

97.28

97.49

97.66

97.83

98.08

98.41

98.71

98.80

98.88

98.95

98.86

96. b7

98.48

98.37

98.47

98.62

98.71

98.75

98.81

98.84

98.80

98.74

98.80

98.86

f98.88

_

_

_

99.15

July

99.26

99.24

99.30

99.46

99.65

99.84

99.92

99.91

99.86

99.90

99.95

99.90

99.90

99.91

99.90

99.92

99.92

99.90

99.90

99.92

99.86

99.92

99.94

a99.91

a99.87

a99.85

99.91

99.92

99.85

99.86

99.92

Aug.

99.96

99.96

99.95

99.97

99.94

99.89

99.83

a99.77

a99.73

99.69

99.68

99.64

99.61

99.55

99.53

99.50

99.45

99.42

99.38

99.29

99.23

99.17

99.17

a99.12

a99.05

a98.97

a98.95

a98.90

a98.84

98.82

98.74

Sept.

98.66

98.59

98.55

98.47

98.36

98.25

98.17

98.08

98.01

97.92

97.85

97.77

97.66

97.58

97.53

97.45

97.34

97.25

97.15

97.08

96.98

96.91

96.84

96.73

96.63

96.57

96.53

96.52

96.51

96.43

tember 1948

a No gage-height record; elevations furnished by Washington Water Power- Co 

record.

f Computed on basis of partly estimated gage-height record. 

Note.- Add 1,000 feet to obtain elevation above mean sea level.

from their powerhouse

Monthly elevation and contents, water- year October 1947 to September 1948

Date

Dec. 31. ...................

Calendar year 1947. ......

Sept. 30.. ..................

Water year 1947-48. ......

Elevation 

(feetjt

,094.13

_

,096.36

_

Contents 

(acre-feet)

484,190

_

556,890

_

Change in contents 

during month 

(acre-feet)

-34,550

+184,900

-94,510

-57,820

+297,200

+25,580

-75,280

+53,470

t Elevations are 12 p. 

Stehekin and at Chelan.

ns based on records for stations at
CHELAN RIVER BASIN 307

Chelan River at Chelan, Wash.

Location.- Water-stage recorder, lat. 47°50'05", long. 120°00'40", in SE^ sec. 12, T. 

2V N., R. 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 miles.

Records available.- October 1903 to September 1948.

Average discharge.- 45 years, 1,992 second-feet (adjusted).

Extremes.- Maximum daily discharge during year, 16,000 second-feet May 30; minimum daily,

 50 second-feet Feb. 29.

1903-48: Maximum daily discharge, that of May 30, 1948; no flow part of day Jan. 

30, 1917, when lake outlet was blocked with ice, and at other times owing to artificial 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 V'ashington 

water Fower Co.

Revisions (water years).- W 482: 1904-13. W 612: 1924.

Discharge, in second-feet, water year October 1947 to September 1943

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2,170 

2,010 

1,350 

1,280 

1,040

1,440 

1,500 

1,890 

1,780 

1,420

373 

55 

1,210 

1,240 

1,200

1,080 

1,180 

S08 

169 

1,380

1,400 

703 

359 

306 

294

55 

471 

413 

584 

485 

592

Nov.

488 

163 

762 

698 

852

834 

415 

448 

462 

1,160

612 

1,330 

1,390 

1,380 

574

79 

1,370 

1,390 

1,400 

1.430

1,470 

1,390 

700 

1,450 

1,4SO

1,530 

228 

1,410 

457 

85

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wat

endar year 1947

St..............

ember ...........

er year 1947-48

Dec.

1,500 

1,400 

1,450 

1,420 

1,440

1,320 

549 

1,460 

1,430 

1,560

1,640 

1,700 

1,450 

1,170 

1,440

1,420 

1,410 

1,440 

1,440 

1,260

574 

1,140 

1,460 

734 

51

1,280 

541 

485 

1,330 

1,390 

1,440

Jan.

340 

1,350 

1,050 

380 

1,390

1,340 

1,360 

1,420 

1,370 

1,210

316 

1,430 

1,530 

1,500 

1,540

1,490 

1,550 

1.480 

1,530 

4,090

3,160 

1,930 

2,880 

5,290 

4,960

5,360 

4,650 

2,600 

1,950 

2,110 

2,140

Feb.

2,180 

3,430 

4,300 

2,680 

1,930

2,170 

2,160 

2,070 

1,780 

2,050

2,170 

2,180 

2,160 

2,060 

1,740

1,510 

1,240 

1,400 

1,370 

1,460

1,420 

120 

1,470 

1,310 

1,260

1,180 

1,270 

602 

50

Mar.

1,360 

1,290 

1,370 

1,320 

1,330

1,270 

1,840 

2,400 

2,180 

1,950

1,490 

1,420 

1,150 

1,110 

1,490

1,770 

1,850 

1,670 

1,720 

1,560

1,430 

1,470 

1,370 

1,340 

1,320

1,260 

760 

134 

1,320 

1,240 

1,140

Observed

Discharge in 

second-feet

Maximum

2,170 

1,530 

1,700

7,680

5,360 

4,300 

2,400 

1,410 

16,000 

15,100 

4,750

2,230

16,000

Minimum

55 

79 

51

51

316 

50 

134 

144 

180 

3,950 

697

1,330

50

Mean

969 

914 

1,236

1,753

2,087 

1,749 

1,430 

1,140 

2,308 

9,566 

2,802 

2,251 

2,027

2,341

Runoff 

in 

acre-feet

59, 58C 

54.38C 

76,01C

1,269,OOC

128, 30C 

100,600 

87,92C 

67,850 

141,900 

569, 20C 

172,300 

138,400 

120,600

1,717,000

Apr.

1,140 

1,200 

956 

144 

1,330

1,320 

1,350 

1,330 

1,350 

903

328 

1,350 

1,330 

1,340 

1,410

1,230 

948 

265 

1,350 

1,250

1,310 

1,320 

1,350 

1,310 

383

1,350 

1,370 

1,330 

1,340 

1,320

May

708 

332 

1,330 

1,320 

1,320

1,300 

1,300 

918 

193 

1,240

1,190 

678 

745 

761 

527

180 

726 

760 

760 

753

798 

1,000 

293 

1,420 

1,790

1,870 

1,790 

2,650 

13,400 

16,000 

13,500

Change in

contents 

in 

Lake Chelan 

(acre-feet)

+20,870 

-5,550 

-34.55U

+184,900

-94,510 

-69,150 

-57,820 

+24,330 

+297,200 

+62,970 

+25,580 

-40,670 

-75,280

+53,470

June

12,600 

11,100 

10,300 

10,500 

10,600

10,900 

11,200 

13,300 

14,800 

15,000

15,100 

15,100 

14,700 

12,300 

9,500

8,100 

8,270 

8,340 

8,350 

8,440

8,420 

8,410 

6,410 

5,260 

5,270

5,310 

5,330 

5,310 

4,800 

3,950

July

4,090 

3,740 

2,090 

1,040 

697

1,940 

2,770 

3,780 

3,270 

2,320

4,200 

2,790 

2,660 

2,810 

2,680

3,370 

4,560 

4,750 

3,770 

4,340

2,850 

2,070 

3,320 

2,960 

2,400

2,200 

2,240 

2,130 

1,930 

1,420 

1,670

Aug.

2,710 

2,090 

2,700 

2,690 

2,510

2,270 

2,180 

2,150 

2,170 

2,230

2,220 

2,240 

2,220 

2,190 

2,200

2,200 

2,220 

2,220 

2,220 

2,220

2,190 

2,150 

1,870 

2,180 

2,230

2,220 

2,240 

2,220 

2,250 

2,160 

2,220

Sept.

2,230 

2,220 

2,220 

2,210 

2,220

1,950 

2,220 

2,220 

2,220 

2,220

2,220 

2,230 

2,220 

2,220 

1,860

1,840 

2,220 

2,140 

2,120 

1,720

2,210 

2,200 

1,690 

2,220 

1,840

1,870 

1,630 

1,330 

1,390 

1,720

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-feet

80,450 

48,830 

41,460

1,454,000

33,790 

31,450 

30,100 

92,180 

439,100 

632,200 

197,900 

97,730 

45,320

1,771,000

Discharge in 

second-feet

Mea-i

1,308 

821 

674

2,008

550 

547 

490 

1,549 

7,141 

10,620 

3,219 

1,589 

762

2,439

Note.- Discharges are combined flow of power conduit, irrisation diversion below dam

Per 

square 

mile

1.38 

.864 

.70S

2.11

.575 

.576 

.516 

1.63 

7.52 

11.2 

3.39 

1.67 

.802

2.57

Runoff

inches

1.59 

.96 

.82

28.68

.67 

.62 

.59 

1.82 

8.67 

12.48 

3.91 

1.93 

.89

34.95

and waste
CHELAN RIVER BASIN

Railroad Creek at Lucerne, Wash.

Location.- #§ter-Stfge recorder, l«t, 46" 11 '40", long. 120° 35 '50", in sec. 9, T. 31 N. , R,

18 E . , . half a liliie ^Sfeream froto moiith Sfld half a mile southwest of Lucerne. 

Drainage area.- 64 square ftllSit

Kecoras available.- December 19lfl t6 tfteg |9 13 ( Jsfittary 1927 to September 1948. 

Average discharge?- 22 years (1911-12, 1§27»4S>, 188 second-feet,

extremes.- Maximum discharge during year, 3,909 tfe'<5i9n<3-feet May 28 (gage height, 8.1 feet, 

from rioodmarks ) , by slope-area and contra cted-0p$nifcg methods ; minimum not determined, 

occurred sometime during period of no gage-helgBt record Mar. 10-18.

1927-48: Maximum discharge, that of May 28, 1948> minimum, less than 9.4 

sometime during period of ice effect Jan. 15-25, l930\

- 8s«®rag good except those for periods of ice effect or no gage-height record, 

,. Miifch1 a?e $d9P, Ms diversion sr regulation. 

Cbgftlisattion-- Qaige'- height feSord collected in cooperation with, and several discharge

measiiirStderitja furnigh^d fcy Washington Water Power Co.

Revis ions (wflteft' jjiacaX..- W i64§; 1944, Revised figures of discharge, in second-feet, 

ror the period 81

Paper 812, are given

Nov: f, 1§3S, superseding those published in V'ater-Supply

No

3..........

Menth Secondfoot-days

&3tc 2,041 

1,006

Calendar1 yeal" 1935. « . 79,801 

- Bate? ysta£.iS35-36. , . 61 £ 447

32 

32 

32 7..

Maximum Minimum Mean

99 36 65.6 

41 27 33. E

1,120 22 219 

1,320 12 168

fat squ 

ttile

36 

37 

39

are

1.03 

.523

3.42 

2.62

Runoff in 

inches

1,19 

.58

46.39 

35.73

Runoff in 

acre-feet

4,05O 

2,000

158,bOO 

121,900

bistShftrfee, in second-feat, water year October 1947 to September 1948

Day

3 

4

J

il

12

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30

31

Oct.

83

Ml 

169

128 

106 

95 

Si 

91

91 

88 

95 

102

106

133 

133 

137 

342 

239

179 

160 

146 

133 

124

137 

142 

142 

133 

128 

137

Nov.

151 

142 

128 

117

US

log 

113 

isf

121 

110

106 

102 

98 

95 

95

S5 

85 

83 

80 

71

63

66 

66 

6S 

77

160 

165 

133 

128 

121

Dec.

117 

102 

95 

 91

ss

83 

85 

85 

80 

77

77 

71 

77 

80 

77

71 

71 

71 

69 

69

63 

59

61 

61 

61

59 

55 

54 

50 

52 

54

JSft,

55 

57 

52 

52 

SO

50 

SO 

44 

48 

46

46 

b42 

b40 

b40 

b40

b42 

48 

46 

44 

 43

44 

46 

50 

50

46

b45 

b44 

b44 

b44 

b44 

b44

Feb.

b44 

44 

46 

44 

b44

b44 

b44 

43 

43 

b40

b40 

b39 

39 

39 

39

42 

48 

46 

48 

44

44 

44 

43 

42 

42

42 

42 

40 

39

Month Second- 

*ontn foot-days

Ooto 

Hove 

Dece

Ca

Jann 

Febr 

Maro 

Apri 

May 

June 

Jnly 

Augu 

Sept

Wa

mber ......................

lendar year 1947 

ary

1 .........................

ember .....................

4,573 

3,186 

2,262

76,793

1,436 

1,238 

1,171 

3,539 

21,153 

32,240 

12,992 

7,093 

3,487

ter year 1947-48 .......... 94,370

Mar.

38 

£9 

38 

39 

38

37 

37 

36 

36 

35

35 

35 

35 

35 

35

35 

35 

35 

36 

37

39 

40 

39 

39

38

38

38 

42 

44

44 

44

Maximum

361 

165 

117

1,070

57 

48 

44 

239 

3,000 

1,700 

630 

369 

171

3,000

Apr.

44

46 

48 

46 

4S

44 

44 

43 

44 

44

46 

46 

48 

48 

66

106 

146 

156 

174 

190

222 

239 

239 

233 

227

206 

185 

174 

174 

165

May

1

1 

2

2

1

1

Minimum

83 

63 

50

28

40 

39 

35 

43 

151 

670 

284 

171 

82

35

160 

151 

174 

174 

179

190 

195 

206 

216 

239

244 

256 

279 

273 

268

273 

291 

316 

335 

388

529 

720 

823 

974 

,200

,500 

,000 

,000 

,800 

,500 

,300

June

1,100

1,100 

1,200 

1,300 

1,400

1,600 

,700 

,600 

,600 

,700

,500 

,200 

,100 

1,000 

970

1,000 

1,000 

910 

960 

960

080 

800 

740 

700 

670

680 

700 

730 

750 

690

Mean

148 

106 

73.0

210

46.3 

42.7 

37.8 

118 

682 

1,075 

419 

229 

116

258

July

630 

544 

526 

517 

454

499

490 

40? 

377 

361

38S 

418 

377 

401 

427

445 

472 

490 

472 

454

427. 

427 

427 

409 

300

299 

345 

291 

284 

314 

329

Per 

square 

mile

2.31

1.66 

1.14

3.28

.723 

.667 

.591 

1.84 

10.7 

16.8 

6.55 

3.58 

1.81

4.03

Aug.

369 

345 

321 

325 

284

254 

211 

225 

247 

240

240 

232 

218 

225 

218

240 

191 

211 

204 

191

198

198 

178 

171 

211

204 

184 

198 

198 

184 

178

Sept.

158 

140 

171 

146 

12S

122 

106 

106 

106 

112

117 

117 

122 

128 

146

128 

106 

91 

91 

106

106 

112 

101 

106 

96

96 

82 

128 

112 

101

Runoff

Inches

2.66 

1.85 

1.31

44.61

.83 

.72 

.68 

2.06 

12.29 

18.73 

7.55 

4.12 

2.03

54.83

Acre-feet

9,070 

6,320 

4,490

152,300

2,850 

2,460 

2,32O 

7,020 

41,960 

63,950 

25,770 

14,070 

6,920

187,200

Peak discharge (base, 622 sec.-ft.).- May 28 (time unknown) 3,900 sec.-ft.; June 7, 29 (time and 

discharge unknown).

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Map. 10-18, May 25 to June 30, July 18, 20; discharge computed on 

basis of records for Stehekln River at Stehekln. Figures of daily discharge for Mfy, June, and July 

1948 supersede those published in Water-Supply Paper 1080, "Floods of May-June 1943 in Columbia 

River Basin."
WENATCHEE RIVER BASIN 309

Wenatchee Lake near Plain, Wash'.

Location.- Water-stage recorder, lat. 47°49'50", long. 120°46'30", In sec. 19, T. 27 N., 

K. 17 K., on north shore, 2| 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.- 277 square miles.

Records available.- January 1932 to September 1948.

Extremes.- Maximum elevation during year, 1,879.65 feet May 29; minimum, 1,869.73 feet

1932-48: Maximum elevation recorded, that of May 29, 1948; minimum, 1,869.27 feet 

Dec. 1, 1936.

Remarks.- Records excellent. No diversion or regulation.

Elevation, In feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

69.74

69.98

71.01

71.12

70.86

70.61

70.40

70.28

70.22

70.25

70.23

70.17

70.15

70.15

70.12

70.34

70.55

70.66

71.89

72.52

72.02

71.57

71.29

71.08

70.92

70.92

70.93

70.89

70.84

70.79

70.79

Nov.

70.99

71.07

71.02

70.92

70.83

70.74

70.71

71.01

71.08

70.98

70.93

70.84

70.79

70.74

70.68

70.61

70.57

70.53

70.47

70.41

 70.37

70.33

70.30

70.26

70.26

70.52

70.72

70.70

70.65

70.59

-

Dec.

70.55

7Q.53

70.51

70.45

70.40

70.35

70.32

70.29

70.27

70125

70.22

70.20

70.25

70.42

70.43

70.40

70.39

70.40

70.38

70.33

70.30

70.27

70.25

70.26

70.27

70.27

70.27

70.2-7

70.25

70.23

70.21

Jan.

70.24

7O.24

70.25

70.25

70.22

70.21

70.23

70.21

70.16

70.15

70.16

70.10

70.02

69.96

69.95

69.94

69.94

69.95

69.95

69.94

69.95

69.99

70.04

70.09

70.11

70.07

70.03

69.99

69. 98.

70.02

70.04

Feb.

70.04

70.02

70.00

70.00

70.00

69.94

69.87

69.90

69.91

69.90

69.90

69.88

69.87

69.88

69.95

70.00

70.02

70.08

70.12

70.10

70.12

70.17

70.12

70.09

70.08

70.12

70.14

70.12

70.09

_

-

liar.

70.05

70.04

70. 03

70.00

69.99

69.98

-

-

-

-

_

_

_

_

-

_

_

_

..

69.91

69.95

70.08

70.08

70.04

70.04

70.02

70.01

70.01

70.04

70.09

70.11

Apr.

70.13

70.17

70.19

70.19

70.19

70.16

70.15

70.14

70.15

70.16

70.16

70.16

70.16

70.16

70.21

70.51

70.93

71.07

71.17

71.29

71.44

71.66

71.78

71.77

71.69

71.50

71.37

71.27

71.16

71.05

Hay

70.97

70.89

70.89

71.00

71.02

71.14

71.42

71.50

71.52

71.52

71.53

71.56

71.72

71.79

71.78

71.77

71.89

72.08

72.17

72.34

73.06

73.92

74.28

74.54

75.06

75.74

76.83

78.46

79.35

78.02

76.49

June

75.74

75.52

75.64

75.76

75.84

76.16

76.65

77.16

77. 27

77.21

77.00

76.40

75.51

74.82

74.31

74.18

74.27

73.95

73.72

73.75

73.70

73.50

73.24

_

-

_

_

73.28

73.42

73.43

-

July

73.09

72.61

72.31

72.16

71.94

71.86

71.87

71.73

71.58

71.57

71.60

71.52

71.43

71.43

71.49

71.58

71.62

71.63

71.55

71.46

71.46

71.39

71.30

71.15

71.00

70.91

70.89

70.85

70.80

70.82

70.86

Aug.

70.92

71.01

70.96

70.84

70.77

70.72

70.61

70.53

70.50

70.48

70.44

70.42

70.39

70.37

70.42

70.49

70.42

70.38

70.33

70.30

70.29

70.31

70.30

70.24

70.23

70.24

70.24

70.29

70.30

70.27

70.24

Sept.

70.20

70.15

70.17

70.17

70.10

_

_

_

69.99

69.98

69.97

69.96

69.96

69.95

69.98

70.08

70.07

70.03

6_9.96

69.91

69.88

69.99

70.06

70.05

70.03

70.03

70.08

70.19

70.28

70.26

-

Note.- Add 1,800 feet to obtain elevation above mean sea level.
310 WENATCHEE RIVER BASIN 

Wenatchee River below Wenatchee Lake, Wash.

Location.- Water-stage recorder, lat. 47°49'50", long. 120°46'30", in sec. 19, T. 27 N., R. 

17 K. , on north shore of Wenatchee Lake, 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. 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 1948.

Average discharge.- 12 years, 1,253 second-feet.

Extremes.- Maximum discharge during year, 13,700 second-feet May 29 (elevation of lake 

surface, 1,879.65 feet); minimum, 268 second-feet Oct. 1, 2 (elevation of lake surface, 

1,869.73 feet).

1932-42, 1946-48: Maximum discharge recorded, that of May 29, 1948; minimum discharge, 134 second-feet Dec. 1, 1936 (elevation of lake surface, 1,869.27 feet).

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Natural regulation in lake. No diversion.

Rating table, water year 1947-48 (elevation, in feet, 

and discharge, in second-feet)

,869.7 254 1,871.5 1,760 ,875.0 5,990 

,869.9 350 1,872.0 2,310 ,876.0 7,290 

,870.2 538 1,872.5 2,870 ,877.0 8,720 

,870.6 856 1,873.0 3,470 ,878.0 10,400 

,871.0 1,240 1,874.0 4,690 ,879.5 13,400

Discharge, in second-feet, water year October 1947 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.

272 

396 

1,250 

1,340 

1,100

865 

687 

596 

552 

574

560 

518 

504 

504 

484

641 

812 

911 

2,200 

2,870

2,310 

1,820 

1,540 

1,320 

1,160

1,160 

1,170 

1,130 

1,080 

1,030 

1,030

Nov.

1,230 

1,310 

1,260 

1,160 

1,070

985 

956 

1,250 

1,320 

1,220

1,170 

1,080 

1,030 

985 

929

865 

830 

795 

744 

695

664 

633 

610 

581 

581

786 

966 

947 

902 

847

Dec.

812 

795 

778 

728 

687

648 

625 

603 

588 

574

552 

538 

574 

703 

712

687 

679 

687 

672 

633

610 

588 

574 

581 

588

588 

588 

588 

574 

560 

545

Jan.

567 

567 

574 

574 

552

545 

560 

545 

511 

504

511 

470 

420 

384 

378

373 

373 

378 

378 

373

378 

401 

432 

464 

477

451 

426 

401 

396 

420 

432

Month fS«

Ootc 

Hove

Decs

Ca

Jane 

Febi 

Hare 

Apr! 

May 

June 

Juls 

Augi 

Sept

We

mber ......................

lendar year 1947 

ary

Feb.

432 

420 

407 

407 

407

373 

335 

350 

356 

350

350 

340 

335 

340 

378

407 

420 

457 

484 

470

484 

518 

484 

464 

457

484 

497 

484 

464

ond-

-days

32,386 

28,401 

L9.659

......... 517,142

1

ember .....................

14,215 

12,154 

12,251 

51,165 

18,840 

73,200 

56,030 

53,166 

13,272

iter year 1947-48 .......... 534,739

Mar.

438 

432 

426 

407 

401

396 

a385 

a380 

a370 

a360

3350 

a350 

a350 

a350 

a345

a340 

a340 

a345 

a355 

356

378 

457 

457 

432 

432

420 

413 

413 

432 

464 

477

Maximum

2,870 

1,320 

812

5,900

E74 

518 

477 

2,090 

13,000 

9,120 

3,580 

1,250 

596

13,000

Apr.

490 

518 

531 

531 

531

511 

504 

497 

504 

511

511 

511 

511 

511 

545

778 

1,170 

1,310 

1,390 

1,540

1,700 

1,920 

2,090 

2,040 

fl,980

fl,760 

1,600 

1,490 

1,390 

1,290

May

1 

1 

1

1 

1

1 

1 

1 

1

1

1 

1 

2 

2 

2

2

2 

2 

2 

2

3 

4 

5 

5 

6

6 

8 

11 

13 

10 

7

Minimum

272 

581 

538

238

373 

335 

340 

490 

1,130 

3,570 

1,040 

560 

340

272

,210 

,130 

,130 

,240 

,260

,380 

,670 

,760 

,780 

,780

,790 

,830 

,000 

,080 

,070

,060 

,190 

,390 

,500 

,690

,540 

,590 

,060 

,390 

,080

,970 

,480 

,300 

,000 

,500 

,990

June

6,950 

6,660 

6,820 

7,000 

7,080

7,530 

8,220 

8,960 

9,120 

9,050

8,720 

7,880 

6,660 

5,760 

5,100

4,910 

5,030 

4,620 

4,340 

4, .570

4,310 

4,070 

3,760 

a3,700 

a3,640

a3,570 

a3,600 

3,810 

3,970 

3,990

Mean

1,045 

947 

634

1,147

459 

419 

395 

1,039 

3,834 

5,773 

1,807 

747 

442

1,461

Peak discharge (base, 5,500 sec. -ft.).- May 29 (6 a.m.) 13.700 sec. -ft

1948

July

3,580 

3,000 

2,650 

2,490 

2,240

2,160 

2,170 

2,010 

1,850 

1,840

1,870 

1,780 

1,680 

1,680 

1,750

1,850 

1,890 

1,900 

1,820 

1,720

1,720 

1,640 

1,540 

1,390 

1,240

1,150 

1,130 

1,090 

1,040 

1,060 

1,100

Per 

square 

mile

3.77 

3.42 

2.29

5.12

1.66 

1.51 

1.43 

3.75 

13.8 

20.8 

6.52 

2.70 

1.60

5.27

Aug.

1,160 

1,250 

1,200 

1,080 

1,010

966 

865 

795 

769 

753

720 

703 

679 

664 

703

761 

703 

672 

643 

610

603 

S18 

610 

567 

560

567 

567 

603 

610 

588 

567

Sept.

538 

504 

518 

518 

470

3450 

a420 

a410 

401 

396

390 

384 

384 

378 

396

457 

451 

426 

384

356

340 

401 

445 

438 

426

426 

457 

531 

596 

581

Runoff

Incf es

4.35 

3.81 

2.64

69.43

1.91 

1.63 

1.64 

4.18 

15.96 

23.25 

7.52 

3.11 

1.78

71.78

Acre-feet

64,240 

56,330 

38,990

1,026,000

28,200 

24,110 

24,300 

61,810 

235,700 

343,500 

111,100 

45,950 

26,320

1,061,000

.; June 9 (11 a.m.) 9,190

a No gage-height record; discharge computed on basis of records for station at Plain, 

f Computed on basis of partly estimated gage-height record.
WENATCHEE RIVER BASIN 

Wenatchee River at Plain, Wash.

311

Location.- Water-stage recorder, lat. 47°45'50!', long. 120°39'30", in lot 8, sec. 12, T.

 5J6 M., R. 17 E., at Plain, a quarter of a mile downstream from Beaver Creek, 7^ 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.

Hecoras available.- November 1910 to September 1948 in reports of Geological Survey.

 August 1904 to September 1933 (monthly discharge) in State Water-Supply Bulletin 5.

Average discharge.- 44 years (1904-48), 2,143 second-feet.

Extremes.- Maximum discharge during year, 23,700 second-feet May 29 (gage height, 12.43

 feet, from high-water mar.k in well); minimum, 415 second-feet Oct. 2 (gage height, 1.8 

feet).

1910-29, 1931-48: Maximum discharge, that of May 29, 1948'; minimum, 191 secondfeet Dec. 1, 1936 (gage height, 1.34 feet).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Wenatchee Park Land & Irrigation Co. diverts a maximum of about 12 

second-feet from Chlwawa River during irrigation seasons. Natural regulation by 

Wenatchee Lake.

Revisions (water years).- W 482: 1911-14.

Rating table, water year 1947-48, except periods of ice effect 

(gage height, In feet, and discharge, in second-feet)

1.9 420 3.6 1,810 7.0 7,200 

2.1 535 4.0 2,250 8.0 9,420 

2.4 740 4.5 2,870 9.0 12,000 

2.7 970 5.0 3,580 10. 0 14,800 

3.0 1,230 5.5 4,380 11.0 17,900 

3.3 1,510 6.0 5,250 12.2 21,900

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

431 

641 

2,000 

1,860 

1,510

1,230 

1,010 

890 

852 

914

890 

822 

808 

f815 

f808

1,140 

1,410 

1,560 

3,730 

4,050

3,280 

2,610 

2,250 

1,980 

1,760

1,860 

1,810 

1,760 

1,660 

1,610 

1,660

Nov.

2,030 

2,030 

1,920 

1,760 

1,610

1,560 

1,560 

a2,000 

a2,100 

a2,000

al,800 

1,710 

1,660 

1,560 

1,510

1,410 

1,360 

1,320 

1,230 

1,180

1,100 

1,050 

1,010 

986 

1,000

1,410 

1,610 

1,510 

1,460 

1,410

Dec.

1,360 

1,320 

1,280 

*1,230 

1,130

1,070 

1,060 

1,030 

1,010 

970

954 

914 

1,070 

1,280 

1,180

1,140 

1,140 

1,140 

1,100 

1,050

1,010 

978 

962 

970 

986

970 

962 

962 

938 

906 

898

Jan.

914 

914 

922 

922 

890

890 

906 

882 

815 

830

830 

a730 

. a620 

*a570 

560

560 

560 

560 

560 

540

560 

600 

a640 

700 

740

700 

649 

628 

621 

660 

691

Feb.

698 

663 

628 

649 

642

580 

520 

540 

560 

560

560 

520 

520 

560 

642

656 

684 

792 

*822 

770

770 

785 

770 

733 

712

770 

785 

748 

719

M _ tl, SecondSSonth foot-days

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay 

June 

Julj 

Augu 

Sept

Wa

raber . 2

lendar year 1947 ......

ary

19,611 

15,856 

!2,970

863,356

........... 2 "uary ]

1 c

........................... 2C

ember ..................... Z

2,164 

9,358 

9,945 

2,325 

)5,050 

)2,550 

3,000 

58,280 

1,372

ter year 1947-48 .......... 902,481

Mar.

698 

691 

663 

642 

642

628 

621 

607 

600 

594

580 

574 

574 

568 

561

561 

554 

568 

580 

574

607 

755 

726 

691 

684

670 

663 

684 

755 

800 

830

Maximum

4,050 

2,100 

1,360

10,200

922 

822 

830 

3,360 

21,900 

15,600 

6,000 

1,920 

954

21,900

Apr.

860 

875 

914 

890 

868

838 

822 

815 

830 

845

868 

860 

845 

875

1,010

1,560 

2,080 

2,250 

2,430 

2,610

2,940 

3,280 

3,360 

3,360 

3,140

2,870 

2,550 

2,430 

2,310 

2,140

May

2,030 

1,920 

2,030 

2,200 

2,200

2,490 

3,000 

3,000 

3,070 

3,070

3,140 

3,210 

3,500 

3,580 

3,500

3,580 

3,800 

4,100 

4,250 

4,900

6,480 

8,200 

8,900 

9,500 

10,500

12,000 

14,400 

18,600 

f 21, 900 

18,000 

14,000

Minimum

431 

986 

898

400

540 

520 

554 

815 

1,920 

6,190 

1,710 

922 

554

431

J?eak discharge ibase, 4,850 sec. -ft.).- Hay 29 (time unknown

June

12,200 

11,800 

12,000 

12,300 

12,500

13,300 

14,400 

15,500 

15,600 

15,500

15,000 

13,400 

11,300 

9,860 

8,830

8,700 

9,080 

8,290 

7,820 

7,930

7,720 

7,200 

6,790 

6,590 

6,390

6,190 

6,190 

6,590 

6,790 

6,790

Mean

1,600 

1,529 

1,064

2,365

715 

668 

643 

1,744 

6,615 

10,080 

3,000 

1,235 

712

2,466

July Aug.

6,000 1,860 

5,070 1,920 

4,550 1,860 

4,210 1,710 

3,810 1,610

3,730 1,610 

3,730 1,410 

3,430 1,320 

3,070 1,320 

3,070 1,280

3,140 1,230 

3,000 1,180 

2,800 1,140 

2,800 1,100 

2,870 1,180

3,000 1,280 

3,070 1,180 

3,070 1,140 

2,940 1,080 

2,800 1,040

2,740 1,020 

2,610 1,050 

2,490 1,020 

2,200 970 

1,980 970

1,860 970 

1,920 938 

1,810 1,000 

1,710 1,000 

1,760 970 

1,760 922

Per 

square 

mile

2.71 

2.59 

1.80

4.00

1.21 

1.13 

1.09 

2.95 

11.2 

17.1 

5.08 

2.09 

1.20

4.17

22,700 sec. -ft.;

Sept.

862

830 

852

838 

762

712 

677 

656 

649 

642

635 

628 

621 

607 

642

755 

712 

656 

621 

594

554

670 

726 

698 

663

691 

762 

785 

954 

698

Runoff

Inches

3.12 

2.89 

2.07

54.31

1.39 

1.22 

1.26 

3.29 

12.90 

19.04 

5.85 

2.41 

1.34

56.78

Ao re-feet

96,400 

90,950 

65,400

l,712,iOOO

43,960 

36,400 

39,560 

103,800 

406,700 

600,100 

184,500 

75,930 

42,390

1,790,000

June 9 (11 a.m.)

16,000 sec.-ft.

* Winter discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of 1 discharge measurement, weather records, 

recorded range in stage, and records for station below Wenatchee Lake.

f Computed on basis of partly estimated gage-height record.

Note.- Stage-discharge relation affected by ice Jan. 15-26, Peb. 6-14.

939922 O - 51 - 21
312 WENATCHEE RIVER BASIN

Wenatohee River at Peshastin, Wash.

Location.- Water-stage recorder, lat. 47°34'50", long. 180°37 I 00", in SE&SW*- sec. 8, T. 

24 N., R. 18 E., 1 mile northwest of Peshastin and 3f miles upstream fron Peshastin 

Creek. Datum of gage is 1,028.04 feet above mean sea level, datum of 1939.

Drainage area.- 1,000 square miles.

Records available.- October 1928 to September 1948 (monthly discharge only October 1988 

to February 19JJ9).

Average discharge.- 20 years, 2,754 second-feet.

Extremes.- Maximum discharge during year, 32,300 second-feet May 28 (gage height, 15.88 

feet); minimum, 574 second-feet Sept. 21 (gage height, 8.09 feet); min.lnr.im daily, 

666 second-feet Oct. 1.

1929-48: Maximum discharge, that of May 28, 1948; minimum, 183 second-feet Oct. 14, 

1939 (gage height, 1.26 feet).

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 by millpond at Leavenworth and by power plant in Tumwater Canyon.

Rating table, water year 1947-48, except period of loe effect 

(gage height. In feet, and discharge, In second-feet)

2.2 640 5.0 3,600 11.0 16,400 

2.5 840 6.0 5,180 12.0 19,200 

3.0 1,240 7.0 7,000 13.0 22,300 

3.5 1,740 8.0 9,04C 14.0 25,500 

4.0 2,300 9.0 11,300 15.6 31,200 

4.5 2,920 10.0 13,700

Discharge, In second-feet, water year October 1947 to September 1948

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.

666 

853 

2,520 

2,540 

2,070

1,680 

1,430 

1,240 

1,200 

1,330

1,280 

1,200 

1,150 

1,150 

1,150

1,740 

2,070 

2,300 

5,800 

6,060

4,670 

3,740 

3,250 

2,860 

2,600

2,600 

2,660 

2,540 

2,420 

2,300 

2,420

MOV.

2,920 

2,920 

2,790 

2,540 

2,360

2,240 

2,240 

3,390 

3, ISO 

2,860

2,790 

2,540 

2,420 

2,300 

2,180

2,070 

2,020 

1,960 

1,850 

1,740

1,630 

1,580 

1,480 

1,480 

1,530

2,190 

2,600 

2,420 

2,300 

2,180

Dec.

2,120 

*2,070 

2,020 

1,9.00 

1,800

1,680 

1,630 

1,580 

1,530 

1,480

1,430 

1,380 

1,480 

1,850 

1,740

1,680 

1,630 

1,630 

1,580 

1,530

1,430 

1,430 

1,380 

1,380 

1,430

1,430 

1,380 

1,380 

1,330 

1,280 

1,280

Jan.

1,330 

1,280 

1,330 

1,330 

1,280

1,240 

1,280 

1,240 

1,150 

1,150

1,200 

1,110 

980 

880 

830

830 

820 

820 

820 

800

820 

920 

*1,070 

1,100 

1,120

1,040 

980 

930 

920 

960 

1,000

Feb.

1,000 

1,000 

930 

940

950

900 

850 

850 

890 

900

900 

860 

850 

880 

918

934 

*990 

1,070 

1,150 

1,070

1,070 

1,070 

1,070 

1,050 

1,010

1,070 

1,110 

1,060 

1,050

Month

Oc to

JJOV«

Dece 

Ca

janu 

Pebr 

Hare 

Aprl

June 

July 

Augu 

Sept

Ka

ber. ....................................

Hber

ntoer. ...................................

lendar year 1947 

ai*3r

h. ......................................

t«r year 1947-48 .......................

Mar.

1,010

998 

974 

950 

942

926 

910 

918 

910 

889

875 

861 

861 

854 

847

847 

847 

854 

861 

875

903 

1,110 

1,110 

1,060 

1,060

1,030 

1,030 

1,070 

1,200 

1,280 

1,280

Apr.

1

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

2 

2 

3 

3 

3

4 

4, 

4 

4 

4

3, 

3, 

3, 

3, 

2,

Secondfoot-days

71,489 

68,640 

48,870

1,217,536

32,560 

28,392 

30,142 

73,220 

292,410 

442,570 

131,240 

50,810 

27,993

1,298,336

330 

330 

380 

330 

280

240 

240 

200 

200 

240

240 

240 

240 

240 

430

180 

920 

120 

320 

600

040 

510 

670 

510 

350

890 

530 

320 

180 

920

Hay

2,720 

2,600 

2,720 

2,980 

2,980

3,320 

4,040 

4,040 

4,040 

4,190

4,190 

4,350 

4,670 

4,840 

4,670

4,840 

5,220 

5,590 

5,820 

7,150

9,240 

11,500 

12,200 

13,800 

15,600

17,800 

22,100 

29,200 

30,900 

25,400 

19,700

Maximum

6,060 

3,390 

2,120

14,300

1,330 

1,150 

1,280 

4,670 

30,900 

22,800 

8,620 

2,600 

1,240

30,900

June

17,400 

17,200 

17,800 

18,000 

18,400

19,600 

21,400 

22,800 

22,700 

22,400

22,700 

20,100 

 16,600 

14,400 

12,700

12,900 

13,600 

12,100 

11,400 

11,600

11,400 

10,400 

9,700 

9,480 

9,260

9,040 

8,830 

9,260 

9,700 

9,700

July

8,620 

7,190 

6,430 

5,880 

5,350

5,520 

5,350 

4,840 

4,510 

4,350

4,510 

4,350 

4,040 

4,040 

4,040

4,190 

4,190 

4,350 

4,190 

3,890

3,820 

3,600 

3,390 

3,050 

2,790

2,600 

S, 540 

2,540 

2,360 

2,360 

2,360

Minimum

666 

1,480 

1,280

634

800 

850 

847 

Ij200 

2,600 

6,830 

2,360 

1,150 

724

666

Aug.

2,480 

2,600 

2,480 

2,300 

2,300

2,180 

1,960 

1,800 

1,740 

1,680

1,630 

1,580 

1,480 

1,430 

1,580

1,800 

1,580 

1,530 

1,430 

1,430

1,330 

1,330 

1,330 

1,280 

1,200

1,240 

1,200 

1,240 

1,280 

1,240 

1,150

Mean

2,306 

2,288 

1,576

3,336

1,050 

979 

972 

2,441 

9,433 

14,750 

4,234 

1,639 

933

3.547

Sept.

1,050 

958 

1,010 

1,070 

958

958 

958 

974 

990 

847

847 

833 

847 

812 

840

974 

950 

896 

826 

777

724 

770 

896 

882 

847

889 

1,020 

1,110 

1,240 

1,240

Runoff In 

acre-feet

141,800 

136,100 

96,930

2,415,000

64,580 

56,310 

.59,790 

145,200 

580,000 

877,800 

260,300 

100,800 

55,520

2,575,000

Peak discharge (base, 10,800 aec.-ft.).- May 28 (8 p.m.) 32,300 sec. -ft.; June 11 (4:30 p.m.)

* Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by Ice Jan. _9, 29-30, Feb. 4, 6-14; d.*" 1 - ^-^ -- ^--.- -. 

ords for nearby stations).

""~-'~ ial' aB=-"iocnarBe relation arreciea oy ice Jan. 13 to Feb. 14 (no gage-height record Jan. 17- 

19, 29-30, Feb. 4, 6-14; discharge computed on basis of weather records, observer's notes, and reo-
WENATCHEE RIVER BASIN 313

Chiwawa River near Plain, Wash.

Location.- Water-stage recorder, lat. 47°50i30", long. 120°39'40", In SE^ sec. 13, T. 27 

 N., K. 17 E., half a mile upstream from Goose Creek, 6 miles north of Plain, 7 miles

upstream from mouth, and 11 miles northeast of Chiwaukum. Datum of gage Is 2,100 feet

above mean sea level (from river-profile map).

Drainage area.- 169 square miles.

Records available.- August 1936 to September 1948. May 1911 to October 1914 at site 4 

miles downstream, published as Chlwawa Creek near Leavenworth.

Average discharge.- 12 years (1936-48), 435 second-feet.

Extremes.- Maximum discharge during year,t 5,880 second-feet May 29 (gage heieftt, 9.17 

feet); minimum not determined j probably occurred sometime during period of Ice 

effecT.

1911-14, 1936-48: Maximum discharge, that of May 29, 1948; minimum, 56 second-feet 

Oct. 24-27, 1942 (gage height, 3.73 feet), but may have been less during some periods 

of Ice effect.

Remarks.- Records good except those for periods of shifting control, which pre fair, and 

those for period of ice effect, which are poor. Ho diversion or regulation.

Rating table, water year 1947-48, except periods of ice effect or shifting control 

(gage height, in feet, and discharge. In second-feet)

3.8 

4.0 

4.2 

4.4

75

126

190

272

4.6 

4.8 

5.0 

5.3

370

475

590

780

5.6 

6.0 

6.5 

7.0

990

1,320

1,800

2,370

7.5 

8.0 

8.5 

9.2

3,020

3,760

4,600

5,940

Discharge, in seoond-feet . water year October 1947 to September I94f

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17ie

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

107

221

470

272

221

190

170

163

173

198

187

173

187

187

183

272

296

325

754

548

436

375

345

315

291

301

286

277

268

263

291

Nov.

380

335

301

277

259

250

255

350

296

282

282

259

259

250

242

229

229

225

213

206

198

194

190

190

198

282

286

259

250

242

-

Dec.

238

233

 229

221

206

198

198

190

190

176

176

173

194

213

198

183

183

187

176

176

170

170

166

166

170

163

163

159

159

153

153

Jan.

150

141

153

156

150

147

153

147

144

140

140

135

135

130

 129

120

120

115

115

115

115

120

120

125

125

115

110

105

105

110

115

Month

October .......................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February .......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1947-48 ..........

Feb.

120

115

110

110

110

100

90

95

95

95

95

90

90

95

110

110

120

130

140

130

130

130

130

120

120

130

130

125

120

_

-

Secondfoot-days

8,745

7,668

5,730

197 , 528

4,000

3 t 285

3 1 484

10,305

54,435

80,370

23,610

5J379

216,840

Mar.

118

115

112

112

110

107

107

107

104

102

102

102

102

104

104

104

102

104

104

102

112

132

123

115

115

110

110

123

135

141

144

Maximum

754

380

238

2, 880

156

140

144

702

5,580

4 250

lUeo

480

229

5,580

Apr.

147

144

153

147

141

138

135

138

144

147

150

144

144

156

190

335

420

442

486

524

620

702

702

676

626

566

524

502

492

470

-

May

453

458

514

536

536

656

734

734

767

829

843

864

962

927

913

913

956

1,030

1,100

1,330

1,790

2,310

2,570

2,710

2,840

3,380

4,170

4,980

5,580

4,530

3,520

Minimum

107

190

153

107

105

90

102

135

453

1,620

453

229

141

90

June

3,250

3,210

3,260

3,300

3,430

3,640

4,000

4,250

4,080

4,080

3,910

3,400

2,850

2,470

2,240

2,300

2,490

2,240

2,120

2,260

2,100

1,860

1,770

1,710

1,700

1,650

1,620

1,710

1,760

1,710

Mean

282

256

185

541

123

113

112

344

1,756

2,679 

762

317

179

592

July

1,460

1,210

1,090

1,050

962

983

913

836

767

780

808

767

722

728

748

774

774

760

741

715

741

696

656

560

508

486

508

464

453

475

475

Per

square 

mile

1.67

1.51

1.09

3.20

.763

 669

 663

2.04

10.4

15.9

4^51 1 88

1.06

3.50

Aug.

480

4

4

4

70

53

20

400

390

3

3

3

45

35

55

345

335

3

3

2

20

06

96

345

345

2

2

2

82

86

82

272

263

2

2

2

68

63

50

250

255

2

2

2

2

42

63

46

38

229

Sept.

217

210

229

206

194

180

176

173

173

170

170

170

166

166;

187

187

170

163

147

141

141

180

173

163

150

170

194

202

221

190

Runoff

Inches

1.92

1.69

1.26

43.47

.88

.72

.77

2.27

U QQSO

17 «69

5-20

2.16

1.18

47.72

Ao re feet

17,340

15,210

11,370

^qi ortrt

7,930

6,520

6,910

20,440

108,000 

159 400

46^830

19,500 

10,670

430,100

Peak discharge (base, 1,600 sec.-ft.).- May 29 (3 a.m.) 5,880 second-feetj June 8 (12 m.) 4,420

sec.-ft.

» Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Jan. 10 to Peb. 29. 

Aug. 1 to Sept. 30.

Shifting-control method used
314 WENATCHEE RIVER BASIN

Icicle Creek above Snow Creek, near Leavenworth, Wash.p

Location.- Water-stage recorder, lat. 47°32'25", long. 120°42'55", In SE£ se^. 28, T. 24 

N., K. 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 1948.

Average discharge.- 12 years, 547 secend-feet.

Extremes.- Maximum discharge during year, 17,500 second-feet May 28 (gage height, 13.93 

reet); minimum, 111 second-feet Oct. 1, 2 (gage height, 2.59 feet).

1936-48: Maximum discharge, that of May 28, 1948; minimum, 50 second-feet Oct. 25, 

26, 1942 (gage height, 1.92 feet).

Remarks.- Records fair 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.

Discharge, in seoond-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

298 

681 

434 

359

293 

280 

260 

290 

305

270 

260 

264 

254 

293

629 

629 

699 

2,490 

1,340

96O

794 

681 

612 

579

646 

612 

579 

548 

530 

580

Nov.

814 

699 

629 

579 

53O

5OO 

6OO 

8 2O 

1,000 

740

700 

640 

580 

520 

475

448

421 

410 

400 

370

350 

340 

34O 

34O 

350

600 

660 

630 

600

570

Dec.

548 

533 

504 

461 

434

396 

421 

383 

383 

359

34O 

330 

37O 

48O 

420

390 

370 

350 

310 

29O

29O 

290 

300 

300 

320

310 

304 

304 

293 

283 

283

Jan.

283 

283 

283 

283

264

264 

264 

254 

219 

236

236 

219 

190 

190 

203

211 

190 

192 

187 

192

219 

228 

*245 

236 

211

178 

b!75 

b!70 

b!70 

b!80 

b!80

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Juls 

Augu 

Sept

Wa

lendar year 1947 

ary

1 .........................

ember .....................

ter year 1947-48 ..........

Feb.

b!9O 

186 

182 

187 

184

161 

198 

193 

182 

172

162 

164 

174 

166 

175

174 

201 

236 

211 

 193

190 

193 

192 

187 

187

219 

219 

2O3 

20O

Secondfoot-days

17,562 

16,655 

11,349

262,317

6,835 

5,481 

5,452 

12,748 

72,347 

102,870 

28,645 

10,326 

5,385

295,655

Mar.

193

190 

187 

180 

182

175 

175 

172 

171 

165

162 

162 

162 

161 

159

158 

158 

158 

158 

157

166 

219 

187 

180 

176

172 

174 

184 

203 

203 

203

Maximum

2,490 

1,000 

548

3,530

283 

236 

219 

875 

13,600 

5,650 

1,820 

570 

251

13,600

Apr.

211 

211 

211 

203 

203

201 

198 

193 

197 

195

197 

195 

197 

203 

254

461 

548 

548 

596 

664

814 

875 

834 

794 

717

646 

596 

564 

533 

489

May

475 

448 

504 

518 

518

658 

794 

736 

717 

717

699 

736 

834 

794 

794

875 

1,020 

1,060 

1,090 

1,820

2,420 

2,77O 

2,600 

3,630 

4,350

5,260 

7,590 

13,600 

6,770 

4,050 

3,500

Minimum

113 

340 

283

113

170 

161 

157 

193 

448 

2,110 

517 

224 

140

113

June

3,590 

3,850 

4,260 

4,060 

4,24O

4,870 

5,460 

5,650 

5,170 

4,820

5,170 

4,040 

3,460 

3,110 

2,850

3,260 

3,260 

2,710 

2,780 

2,810

2,830 

2,530 

2,270 

2,270 

2,190

2.11O 

2,110 

2,350 

2,440 

2,350

Mean

567 

555 

366

719

220 

189 

176 

425 

2,334 

3,429 

924 

333 

180

808

July

,820 

,510 

,4OO 

,320 

,150

,25O 

,220 

,050 

1,000 

1,000

1,030 

960 

895 

895 

895

915 

915 

1,000 

895 

835

795 

755 

715 

628 

577

546 

562 

546 

517 

517 

532

Per 

square 

mile

2.94 

2.88 

1.90

3.73

1.14 

.979 

.912 

2.20 

12.1 

17.8 

4.79 

1.73 

.933

4.19

Aug.

570 

526 

482 

454 

414

415 

370 

36O 

36O 

350

330 

320 

309 

289 

376

401 

330 

320 

299 

280

270 

260 

f260 

260 

260

251 

242 

26O 

251 

233 

224

Sept.

216 

200 

216 

208 

20O

200 

189 

180 

172 

170

164 

160 

158 

150 

156

184 

170 

158 

151 

148

140 

148 

169 

160 

150

160 

208 

233 

251 

216

Runoff

Inches

3.38 

3.21 

2.19

50.55

1.32 

1.06 

1.05 

2.46 

13.94 

19.82 

5.52 

1.99 

1.04

56.98

Acre-feet

34,830 

33,030 

22,510

520,300

13,560 

10,870 

10,810 

25,290 

143,500 

204,000 

56,820 

20,480 

10,680

586,400

Peak discharge {base, 2,500 sec. -ft.).- Oct. 19 (7:30 a.m.) 3,290 sec. -ft.; May 28 (3 p.m.) 17,500

sec.-ft.s June 7~(10:30 p.m.) 6,260 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Oct. 7-12, Oct. 3O, 31, Nov. 5-14, 18-30, Dec. 11-26, Aug. 6-10; discharge computed on basis of recorded range in stage and records for Wenatchee River at Plain.
CRAB CREEK BASIN 315

Crab Creek at Irby, Wash.

Location.- Water-stage recorder, lat. 47°21'30", long. 118°51'00", in M^ sec. 31, T. 22 

N., 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 1948.

Extremes.- Maximum discharge during year, 1,180 second-feet June 12 (gage height, 6.97 

feet) , supersede figures published in Water-Supply Paper 1080; minimum, 2.0 secondfeet Jan. 12 (gage height', 1.80 feet).

1942-48: Maximum discharge, that'of June 12, 1948; minimum, that of Jan. 12, 1948.

Remarks - Records good except those for periods of ice effect or no gage-height record, 

which are poor. No regulation. Some diversion above station for irrigation.

Rating table, water year 1947-48, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-20. 

Apr. 28 to May 1U, Aug. 29 to Sept. 30)

£.0 

2.2 

2.4 

2.7

2.9

3.2 

3.5

4.0 

4.5

136

188

236

311

387

5.0 478

5.5 602

6.0 762

6.7 1,060

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3

4 

5

6 

7 

8 

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 

6.0 

6.6 

6.6 

6.0

6.0 

6.6 

6.6 

6.6 

6.6

6.6 

6.6 

6.6

6.0 

6.0

6.0 

6.6 

6.6 

6.6 

6.0

6.6 

6.6 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0 

6.0

Nov.

6.0 

6.0 

5.6 

6.0 

5.6

5.6 

5.6 

6.0 

5.2 

5.2

5.2 

5.2 

5.2 

5.2 

5.2

5.6 

5.6 

6.6 

5.2 

5.2

4.8 

4.8 

4.8 

4.8 

4.8

4.8 

4.8 

4.8 

5.2 

4.8

Dec.

4.8 

4.8 

5.2 

4.8 

5.2

5.2 

5.2 

*4.8 

4.4 

4.4

4.4 

4.4 

4.4 

4.4 

4.8

4.8 

4.4 

4.0

4.0 

4.4

4. 

4. 

4. 

4. 

4.

4.4 

4.4 

4.4 

4.4

4.4 

4.4

Jan.

4.4 

4.4 

4.0 

4.0 

4.0

4.4 

5.6

4.4 

4.0 

4.0

4.0 

3.6 

b3.5 

b3.5

b4.0

4.4 

4.4 

4.4 

4.0 

4.0

4.0 

4.4 

4.4 

4.4 

b4.0

b3.0 

b!8 

b!03 

t83 

b70 

b48

Feb.

b31 

b!8 

b!7 

b!7 

b!7

b!7 

b!7 

18 

19 

19

20 

21 

21 

22

23

24

24 

127 

658 

688

430 

311 

334

640 

602

439 

835

970 

588

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Peak discharge (base, 300 sec. -ft.).- Feb.

sec. -ft.; May 26 (7 p.m.) 617 sec. -ft. j June

Mar.

404 

296 

251 

212 

190

*170 

160 

153 

146 

134

126 

120 

114 

110 

106

105 

101 

92 

92 

90

87 

83 

88 

90 

88

83 

83 

83 

77 

74 

72

Apr.

66 

71 

74 

74 

74

74 

74 

74 

72 

72

68 

66 

68 

68 

65

64 

64 

64 

62 

62

62

a58 

a54 

a50 

a46

a42 

a38 

34 

36 

34

Secondfoot -days

195.0 

159.4 

141.2

9,405.8

434.2 

6,985 

4,080 

1,830 

5,078 

13,526 

3,380 

1,898 

1,256

38,962.8

19 (12 p.m. 

1 (9 a.m.)

May

36

36 

39 

45 

48

51 

51 

45 

45 

48

52 

57 

61 

62 

64

71 

77 

80 

87 

95

99 

110 

128 

192

390

602 

548 

458 

439 

439 

523

Maximum

6.6 

6.6 

5.2

154

103 

970 

404 

74 

602 

1,060 

194 

77 

47

1,060

June

602 

561 

523 

548 

512

468 

430 

396 

371 

379

577 

1,060 

727 

617 

536

561 

523 

500 

448 

387

356 

334 

318 

304 

288

274 

258 

236 

220 

212

July

194 

183 

175 

167 

162

155 

151 

149 

128 

116

110 

112 

116 

112 

105

94 

90 

85 

83 

82

78 

74 

68 

68 

71

66 

70 

80 

80 

78 

78

Minimum

6.0 

4.8 

4.0

4.0

3.0 

17 

72 

34 

36 

212 

66 

47 

38

3.0

Aug.

77 

71 

74 

76 

74

74 

74 

74 

74 

72

71 

70 

70 

70 

66

61 

57 

57 

53 

48

48 

47 

47 

48 

52

51

50 

50 

48 

47 

47

Mean

6.29 

5.31 

4.55

25.8

14.0 

241 

132 

61.0 

164 

451 

109 

61.2 

41.9

106

) 860 sec. -ft.; Feb. 27 (ll p.m.) 

602 sec. -ft.; June 12 (5 a.m.) 1,

Sept.

47 

46 

46 

46 

46

46 

46

44 

44 

44

42 

41 

41 

40 

41

41 

41 

40 

40 

40

40 

39 

39 

39 

39

42 

40 

40 

38 

38

Runoff In 

acre-feet

387 

316 

280

18,650

861 

13,850 

8,090 

3,630 

10,070 

26,830 

6,700 

3,760 

2,490

77,260

1,130 

180 sec. -ft

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by ice.

Note.- Figures of dally discharge May 1 to July 31 supersede those published in Water-Supply Paper 

1080, "Floods of May-June 1948 in Columbia River Basin."
316 CRAB CREEK BASIN

Crab Creek near Moses Lake, Wash.

Location.- Water-stage recorder, lat. 47°11 I 25", long. 119°16'00", in SW^SE^ sec. 26, T. 20 

N., R. 28 E., 3 miles upstream from Parker Horn and 4 miles north of Moses Lake.

Records available.- September 1942 to September 1948.

Extremes.- Maximum discharge during year, 618 second-feet June 16 (gage height, 3.75 feet); 

no flow during several months.

1942-48: Maximum discharge, that of June 16, 1948; no flow during several months 

each year.

Remarks^- Records good. Some diversion in upper Crab Creek Basin for irrigation. Most of 

now from upper basin passes this station under ground. No regulation.

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

35

36 

27 

28

29 

30 

31

Oct. Nov. Dec. Jan.' Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 1947 

ary

ter yearl947-48 .......................

Mar. Apr.

Secondfoot-days

0

0

0 

0

8,390 

2,160.6 

191.1 

20.1

10,761.8

«ay

Maximum

0 

0 

0

0

0 

0 

0 

0 

0 

566 

187 

14 

1.2

566

June

0 

o 

o 

0 

45

144 

174 

190 

20O 

215

237 

227 

254 

350 

472

566 

550 

516 

488 

477

46O 

422 

393 

362 

333

304 

280 

260 

245 

226

July

187 

177 

165 

147 

138

134 121" 

119 

125 

110

92 

82 

73 

66 

56

48 

43 

41 

38 

36

32 

27 

22 

18 

14.5

12.5 

10.5 

9.0 

7.4 

5.4 

4.3

Minimum

0 

0

e

0

0

0

o

0

45 

4.3 

.7 

.5

O

Aug.

3.1 

2.5 

1.8 

2.8 

2.3

1.8 

2.1 

2.3 

3.4 

5.9

8.0 

10.5 

10.5 

11 

12.5

13 

14 

13 

12.5 

9.7

9.0 

9.0 

7.4 

6,9 

4.8

4,3 

2.1

1.7 

1.5 

1.0 

.7

Mean

0 

0 

0

0

0 

0 

0

0 

280 

69.7 

6.16 

.67

29.4

Sept.

0.5 

.5 

.5 

.5 

.6

.7 

.5

.5 

.5 

.5

.5 

.5 

.5 

.5 

.6

.6 

.6 

.6 

.6 

.6

.7 

.8 

.8 

.8

.8

1.2 

1.1 

1.0 

1.0 

1.0

Runoff In 

acre-feet

0 

o 

0

0

0 

0 

0

o 

16,64* 

4,290 

379 

40

21,350 ,
CRAB CREEK BASIN 317

Moses Lake at Moses Lake, Wash.

Location.- Water-stage recorder, lat. 47°06' long. 119°20', In NE£ sec. 32, T. 19 N., R. 

as.E., at crossing of State Highway 18, If 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 (fragmentary), October 1945 to September 1948. Records October 1912 to September 1914 published as Moses Lake at Neppel.

Extremes.- Maximum elevation during year, 1,047.40 feet June 28, 29; minimum, 1,044.30

1909-i4,'l936-48: maximum elevation observed, 1,047.83 feet Apr. 18, 1941; minimum 

observed, 1,038.17 feet Aug. 27, 1910.

Remarks.- Elevation controlled by dam at lake outlet. Many small diversions for irrigaElevatlon, In feet, water year October 1947 to September 1948

Da»

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

44.33

44.33

44.33

44.33

44.33

44.32

44.33

44.32

44.34

44.36

44.36

44.36

44.37

44.37

44.38

44.41

44.40

44.42

44.44

44.49

44.51

44.51

44.52

44.53

44.53

44.54

44.55

44.56

44.57

44.57

44.59

Nor.

44.59

44.59

44.60

44.61

44.61

44.61

44.62

44.63

44.63

44.64

44.63

44.63

44.64

44.65

44.68

44.68

44.69

44.71

44.71

44.72

44.73

44.73

44.74

44.75

44.75

44.76

44.77

44.77

44.78

44.79

Dec.

44.80

44.81

44.86

44.86

44.87

44.87

44.89

44.89

44:90

44.90

44.91

44.91

44.92

44.93

44.94

44.95

44.97

44.97

44.99

45.00

45.00

45.01

45.02

45.03

45.03

45.04

45.04

45.05

45. 06

45.06

45.07

Jan.

45. OS

45.10

45.10

45.10

45.12

45.14

45.20

45.20

45.22

45.22

45.23

45.23

45.24

45.24

45.24

45.25

45.25

45.26

45.26

45.27

45.27

45.28

45.29

45.29

45.30

45.31

45.31

45.32

45.32

45.33

45.33

Feb.

45.36

45.36

45.37

45.39

45.38

45.38

45.38

45.39

45.40

45.40

45.40

45.41

45.42

45.42

45.43

45.43

45.44

45.44

45.45

45.45

45.47

45.49

45.49

45.50

45.52

45.53

45.53

45.53

45.54

_

-

Mar.

45.54

45.54

45.54

45.54

45.54

45.54

45.54

45.55

45.55

45.53

45.54

45.54

45.54

45.55

45.55

45.56

45.55

45.55

45.55

45.55

45.50

45.55

45.56

45.58

45.57

45.55

45.56

45.56

45.57

45.56

45.54

Apr.

45.54

45.53

45.53

45.55

45.55

45.56

45.56

45.56

45.55

45.56

45.56

45.55

45.56

45.56

45.56

45.57

45.57

45.58

45.58

45.59

45.57

45.57

45.57

45.56

45.56

45.55

45.55

45.56

45.58

45.60

-

Hay

45. 6O

45.60

45.60

45.62

45.63

45.65

45.65

45.65

45.65

45.66

45.67

45.67

45.67

45.67

45.68

45.68

45.67

45.70

45.73

45.79

45.81

45.83

45.84

45.86

45.87

45.87

45.87

45.87

45 .88

45.89

45.89

June

45.89

45.90

45.90

45.90

45.90

45.90

45.93

45.96

-15.99

46.05

46.13

46.18

46.23

46.29

46.39

46.54

46.68

46.81

46.91

47.00

47.08

47.15

47^20

47.26

47.31

47.34

47.37

47.39

4J7.39

47.38

-

July

47.35

47.33

47.31

47.28

47.26

47.25

47.23

47.21

47.19

47.17

47.14

47.11

47.08

47.04

47.01

46.98

46.97

46.97

46.97

46.95

46.94

46.92

46.88

46.85

46.82

46.79

46.75

46.72

46.69

46.68

46.66

Aug.

46.64

46.63

46.61

46.60

46.54

46.56

46.54

46.52

46.49

46.47

46.45

46.43

46.42

46.39

46.37

46.37

46.35

46.33

46.32

46.29

46.28

46.28

46.27

46.26

46.25

46.24

46.23

46.23

46.23

46.21

46.19

Sept.

46.18

46.17

46.16

46.15

46.14

46.13

46.13

46.13

46.12

46.12

46.11

46.11

46.11

46.08

46.06

46.06

46.06

46. OS

46.05

46.05

46.03

46.03

46.03

46.04

46.03

46.02

46.04

46.05

46.06

46.07

-

Note.- Add 1,000 feet to obtain elevation above mean sea level. Figure* of dally gage heights for

May 16, July 30, 31 supersede those published In Water-Supply Paper 1080. "floods of K~y- June 1948

In Columbia River Basin."
318 CRAB CREEK BASIN 

Crab Creek near Warden, Wash.

Location.- Water-stage recorder, lat. 46°58'20", long. 119°15'40", In SE^SEi sec. 11, T. 

iv N., R. 28 E., three-quarters of a mile downstream from Llnd Coulee End 10 miles west 

of Warden.

Records available^- June 1909 to June 1912, October 1942 to September 1948.

Extremes.- Maximum discharge during year, 96 second-feet July 17 (gage height, 9.10 ieet); 

no now for short intervals In June and July when water was shut off by contractor at 

0'Sullivan Dam.

1909-12, 1942-48: Maximum discharge, 3,000 second-feet Feb. 7, 1942 (gage height,, 

14.25 feet, present datum), from rating curve extended above 20 second-feet on basis of 

slope-area measurement of flood flow In Llnd Coulee; no flow for short Intervals In 

June and July, 1948.

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

Many small diversions for Irrigation. Regulation at O'Sulllvan Dam and Moses Lake.

Discharge, In second-feet, water year October 1947 to September 19*1

Day

1

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

17.5 

17.5 

18.5 

18.5 

17.5

18 

18 

18 

18 

18

19 

19 

19 

19 

19

20 

20 

20 

20 

20

20 

19 

19 

19 

19

19 

19 

19 

19 

18 

18

Nov.

18 

18 

17.5 

18.5 

18.5

18.5 

19 

18.5 

18.5 

17.5

18.5 

IS. 5 

19 

19 

19

20 

19 

17.5 

17.5 

18.5

18.5 

16.5 

12.5 

13.5 

14

16.5 

15.5 

16.5 

15.5

15

Dec.

18.5 

17.5 

18.5 

19 

19

19 

19 

19 

19 

18.5

18.5 

17.5 

16.5 

17.5 

17.5

15.5 

15.5 

15.5 

15.5 

15.5

15 

15.5 

17.5 

16.5 

17.5

17.5 

18.5 

16.5 

16.5 

15 

15.5

Jan.

16.5 

15.5 

9.2 

12 

12.5

13.5 

15 

16.5 

17.5 

18.5

IS. 5 

17.5 

16.5 

16.5 

15.5

13.5 

13.5 

21 

22 

19

19 

23 

23 

23 

24

22 

21 

20 

20 

20 

18.5

Feb.

19 

19 

18.5 

17.5 

16.5

16.5 

15.5 

15.5 

15.5 

15.5

15 

15 

15 

16.5 

17.5

17.5 

17.5 

18.5 

18.5 

18.5

20 

25 

30 

30 

30

30 

28 

28 

25

Month

Octo 

Hove 

Dace

ca.

Janui 

Pebn 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1947

1.. .....................................

ter year 1947-48 .......................

Mar.

25 

25 

22 

22 

22

20 

20 

20 

20 

20

19 

17.5 

17.5 

17.5 

19

18.5 

18.5 

18.5 

17.5 

16.5

15.5 

15.5 

15.5 

15.5 

15.5

15.5 

16.5 

18.5 

16.5 

13.5 

14

Apr.

14 

15 

15.5 

17.5 

19

21 

23 

22 

20 

20

19 

19

18.5 

17.5 

18.5

21 

21 

21 

20 

19

20 

18.5 

17.5 

15 

17.5

15.5 

15 

15 

15 

15.5

Secondfoot -days

582.5 

523 

533.5

5,170.4

553,7 

584.5 

568 

546 

579.5 

397,4 

298.1 

198.5 

203.9

5,568.6

May

16.5 

15 

15.5 

15.5 

15.5

16.5 

17.5 

20 

23 

22

17.5

17.5 

18.5 

21 

18.5

15.5 

16.5 

21 

20 

18.5

18.5 

17.5 

18.5 

18.5 

23

22 

17.5 

20 

24 

20 

18.5

Maximum

20 

20 

19

38

24 

50 

25 

23 

24 

24 

18.5 

6.9 

8.0

30

June

16.5 

15.5 

14 

14 

15

15 

15 

14 

13.5 

14

17.5 

215 24 ' 

21 

18.5

16.5 

16.5 

16.5 

16.5 

15.5

11 

9.8 

7.4 

6.5 

6.0

5.1 

5.1 

5.5 

5.1 

3.9

July

4.3 

5.1 

8.0 

8.6 

11

12 

12 

15 

15.5 

16.5

16.5

IS. 5 

16.5 

14 

9.2

8.6 

12 

8.6 

7.4 

8.6

6.9 

6.9 

6.0 

6.0 

6.0

6.4 

6.4 

6.4 

6.4 

6.4 

6.4

Minimum

17.5 

12.5 

15

.2

9.2. 

15 

13.5 

14 

15 

3.9 

4.3 

4.7 

5.1

3.9

Aug.

6.4 

6.9 

6.0 

6.9 

6.4

6.0 

6.4 

6.9 

6.0 

4.7

4.7 

5.1 

6.4 

6.9 

6.9

6.9 

6.9 

6.9 

6.9 

6.4

6.4 

6.4 

6.4 

6.4 

6.4

6.4 

6.4 

6.4 

6.9 

6.9 

6.9

»han

18.8 

17.4 

17.2

14.2

17.9 

20.2 

18.3 

18.2 

18.7 

13.2 

9.62 

6.40 

6.80

15.2

Sept.

6.9

6.9 

6.9 

6.9 

6.9

6.9 

6.9 

6.9 

6.4 

6.. 4

6.4 

6.4 

6.4 

6.4 

6.4

6.4 

3.4 

6.4 

6.4 

6.4

6.4 

7.4 

8.3 

8.0 

8.0

8.0 

8.0 

8.9 

S.S

5.1

Runoff In 

acre-feet

1,160 

1,040 

1,060

10,260

1,100 

1,160 

1,130 

1,080 

1,150 

788 

591 

394 

404

11,030

Tiate. No gage-height record Oct. 6-15, Oct. 18 to Nov. 2, Feb. 21 to Mar. 8; discharge computed 

on basis of weather records and. records for nearby stations.
CRAB CREEK BASIN 319

Crab Creek near Smyrna, Wash.

Location.- Water-stage recorder, lat. 46°50'35", long. 119°36'25", in SE£ sec. 30, T. 16 

W., K. 26 E., at county road bridge 2§ miles east of Smyrna.

Records available.- August 1942 to September 1948.

Extremes.- Maximum discharge during year, 46 second-feet Feb. 18 {gage height, 2.55 feet); 

minimum, 0.2 second-foot on many days during August and September.

1942-48: 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 

tnose for period of ice effect, which are poor. Many diversions aT>ove station for 

irrigation. Some regulation by Moses Lake amd lakes on headwaters.

Rating table 

(gage

, water year 1947-48, except periods of shifting control 

height, In feet, and discharge, In second-feet)

0.9

1.0

1.1

1.2 

1.4

0.2 

.3

1.5 

3.8

Discharge, in second-feet, water year October'1947 to September 1948

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.0 

3.1 

3.2 

3.1 

3.Z

3.3

3.5 

3.9 

4.4

4.6

4.4 

4.3 

4.3 

4.4

5.0

5.6 

5.2 

5.2 

5.4 

7.0

6.8 

6.4 

6.2 

6.4 

6.5

6.7 

7.0 

6.8 

6.8 

6.8 

7.2

Nov.

7.2 

7.4 

7.9 

7.7 

7.7

8.1 

9.0 

9.2 

9.4 

9.0

9.6 

9.6 

10.5 

11 

12

12

11.5 

11.5 

11.5 

11

11 

10.5 

11.5 

11 

9.8

9.6 

10.5 

11 

11

11.5

Dec.

12.5 

12.5 

14 

14.5 

13

9.2 

9.2

11 

11,5 

*9.4

6.8 

7.4 

9.4 

12

12

12 

14.5 

15 

13.5

12.5

13.5 

13 

13.5 

13.5 

13

13.5 

14.5 

14.5 

14.5 

13.5 

13

Jan.

13.5 

15 

14

11.5 

8.6

10.5 

20 

19.5 

14.5 

9.2

11 

9.0 

7.0 

6.2 

7.0

6.0 

5.5 

5.5

5.0 

5.0

6.0 

8.0 

15 

23 

19.5

15 

*9.5 

7.0 

7.0

6.5 

6.0

Feb.

6.0 

6.5 

5.5 

5.0 

5.0

4.5 

4.5

4.5 

5.0 

4.5

4.5 

4.0 

4.0 

5.0 

14

21 

35 

40 

35 

32

33 

37 

35 

30 

29

32

30 

26 

22

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Ma-lr

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

19 

18 

17.5 

16.5 

17

17.5 

16.5 

15.5 

16 

*14

13.5 

14.5 

15.5 

15 

14

14 

14 

13 

13 

13

12.5 

13 

13 

13 

11

11 

10.5 

9.1 

9.1 

9.6 

8.3

Apr.

9.4

9.6 

11 

11.5

11

11.5 

12 

11.5 

11.5 

9.9

8.3 

9.1 

8.6 

8.1 

8.1

8.1 

7.8 

8.1 

8.1 

7.8

7.8 

7.4 

6.7 

7.1 

6.2

7.1 

7.1 

7.6 

9.1 

9.1

Secondfoot -days

159.9 

300.2 

381.9

2,212.7

327.0 

519.6 

429.0 

266.2 

357.0 

216.8 

16.8 

9.2 

7.8

2,991.3

May

8.1 

6.7 

7.4 

7.8 

8.1

9.1 

8.8 

7.6 

9.4 

11.5

11.5 

11 

12 

10 

9.6

10.5 

11 

9.4

11.5 

14

12.5 

10 

11 

13 

13

13 

18.5 

20 

18 

17 

16

Maximum

7.2 

12 

15

31

23

40 

19 

12 

20 

14 

1.1 

.3 

.3

40

June

14 

12 

9.9 

9.6 

9.9

9.1 

8.1 

7.4 

6.5 

5.6

10.5 

8.8 

8.6 

9.9 

9.1

9.4 

9.6 

9.4 

8.3 

7.4

6.9 

6.9 

5.6 

4.3 

3.2

2.2

1.7 

1.3 

1.0

.6

Minimum

July

0.5 

.4 

.4 

.3 

.5

.8

.6 

.6 

.6 

.6

.8

.7 

.6 

.5 

.4

.4 

.4 

.4

.6 

1.0

1.1 

.9 

.6 

.6 

.5

.4 

.4 

.3 

.3 

.3 

.3

3.0 

7.2 

6.8

.1

5.0 

4.0 

8.3 

6.2 

6.7 

.6 

.3 

.2 

.2

.2

Aug.

0.3 

.3 

.3 

.3

.3

.3

.3 

.3 

.3 

.3

.3

.3 

.3

.3 

.3

.3 

.3 

.3

.3 

.3

.2 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3 

.3

Maan

5.16 

10.0 

12.3

6.06

10.5 

17.9 

13.8 

8.87 

11.5 

7.23 

.54 

.30 

.26

8.17

Sept.

0.3 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.3 

.3

.8 

.2 

.2 

.2 

.2

.3 

.3

.3 

.3 

.2

.2 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.3 

.2

Runoff In 

acre-feet

317 

595 

757

4,390

649 

1,030 

851 

528 

708 

430 

33 

18 

15

5,930

t'Vlnter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Jan. 15-22, Jan. 26 to Feb. 14.
320 CRAB CREEK BASIN

Park Lake near Coulee City, Wash.

Location.- Staff gage, lat. 47035', long. 119°24«, in NW£ sec. 14, T. 24 N., R. 27 E.,

 1 mile upstream from outlet and 5f miles southwest of Coulee City. Datuir of gage is 

at mean sea level (Bureau of Reclamation bench mark).

Records available.- March 1938 to September 1948 (fragmentary).

Extremes.- 1938-48: Maximum elevation observed, 1,096.03 feet Dec. 8, 1947; minimum

 observed, 1,094.17 feet Sept. 30, 1939.

Maximum elevation known, 1,101.3 feet (from well-defined alkali line srt gage), date 

of occurrence unknown.

Remarks.- Gage read occasionally. Some diversion from tributary for irrigation.

Elevation, In feet, water year October 1947 to September 1948

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

-

-

_

-

_

_

-

.

-

_

-

-

-

-

.

-

-

-

-

95.58

-

-

-

-

-

-

-

-

-

95.85

NOV.

_

_

-

95.86

95.86

.

-

-

_

-

_

95.87

-

-

-

.

-

-

-

-

.

-

-

-

95.93

.

-

-

-

-

- k

Dec.

_

-

-

_

-

.

-

96.03

_

96.02

_

-

-

-

-

.

-

-

-

-

_

-

-

-

-

-

-

-

-

-

95.92

Jan.

_

.

_

_

-

_

_

-

_

-

_

-

-

-

-

95.68

-

-

-

-

_

-

-

-

-

95.71

-

-

95.70

-

-

Feb.

.

_

_

_

-

_

.

-

95. 7O

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

95.73

-

-

-

-

-

Mar.

_

_

_

_

-

_

_

95.71

95. 7O

-

_

-

-

-

-

_

-

_

_

-

_

-

95.65

-

-

.

-

-

-

-

-

Apr.

.

_

_

_

-

_

_

95.68

_

-

_

-

-

-

-

.

-

-

_

-

.

95.68

-

-

-

_

_

95.64

_

_

-

May

_

_

-

95.72

_

_

-

_

-

_

-

-

-

-

_

-

-

-

95.82

_

-

-

-

-

_

-

-

-

-

-

June

_

_

_

_

-

_

_

-

_

-

95.84

-

-

-

-

.

-

-

-

-

_

.

95.81

-

-

_

~

-

-

_

-

July

95.46

Aug. Sept.

95.35

-

Note.- Add 1,OOO feet to obtain elevation above mean sea level.
CRAB CREEK BASIN 321 

Park Creek below Park Lake, near Coulee City, Wash.

Location.- Water-stage recorder, lat. 47°34', long. 119°25', in SW£ sec. 15, T. 24 N., R. 

27 Ji., 100 feet upstream from mouth, 500 feet downstream from Park Lake, and 6| miles 

southeast of Coulee City.

Records available.- July 1945 to September 1948.

Extremes.- Maximum discharge during year, 24 second-feet Feb. 10 (gage height, 2.66 feet); 

minimum, 0.1 second-foot Oct. 22 (gage height, 1.47 feet).

1945-48: Maximum discharge, that of Feb. 10, 1948; minimum not determined, occurred 

sometime during period of no gage-height record in October, 1945.

Remarks.- Records good. Some diversion during summer months for irrigation above Park 

Lake. No regulation.

Discharge, In second-feet, water year October 1948 to September 1949

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.

3.2 

3.2 

3.2 

3.2 

2.9

2.7 

2.6 

2.6 

3.2 

3.8

4.0 

4.0 

4.0 

3.8 

4.0

4.2

2.8 

2.0 

2.4

2.9

3.1 

2.0 

.3 

.3 

.5

.6 

.7 

1.1 

1.2 

3.7 

6.0

Nov.

5.4 

5.2 

5.4 

5.2 

5.4

5.4 

5.4 

5.4

6.2 

5.2

5.4 

5.4 

5.6 

5.6 

5.8

5.8 

6.2 

6.2 

6.4 

6.4

6.4 

6.2 

6.4 

6.6 

6.8

7.O

7.0 

7.O 

7.0 

7.0

Dec.

7.4 

7.4 

8.4 

8.6 

8.4

8.1 

8.4 

8.4 

8.1 

7.4

7.2 

7.2 

7.0 

5.4 

4.3

3.5 

6.2 

9.4 

10 

10.5

14 

14.5 

14.5 

14 

13.5

13 

12.5 

12 

11.5

11 

11

Jan.

11.5 

10.5 

10.5 

10.5

10

10.5 

11.5 

11.5

11 

11

10.5 

9.1 

8.6 

8.1 

7.2

7.7 

7.7 

7.7 

8.1 

8.1

8.1 

8.1 

8.4 

8.4

10

9.6 

10.5 

12 

12 

10.5 

7.4

Feb.

6.0 

6.2 

6.2 

6.4 

6.8

6.8 

6.8 

7.2 

7.2 

12.5

7.2 

7.2 

7.0 

7.2 

8.6

12 

12.5 

12.5 

12 

10.5

9.9 

9.4 

10 

11.5 

10.5

10.5 

10.5 

10.5 

10

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

10 

10 

8.6 

10.5 

10.5

10 

9.9 

9.9 

9.4 

9.1

9.1 

8.9 

8.9 

8.9 

8.9

9.1 

8.9 

8.6 

8.6 

8.4

8.4 

8.4 

8.1 

8.1 

8.1

8.1 

8.1 

8.4 

8.1 

8. 1 

7.7

Apr.

7.9 

8.1 

8.4 

8.4 

8.4

8.9 

8.9 

8.6 

8.4 

8.4

8.1 

7.9 

8.1 

8.4 

8.4

9.1 

9.1 

9.1 

8.9 

8.6

8.6 

8.4 

8.4 

8.4 

8.1

8.1 

8.1 

8.4 

9.1 

9.1

Secondroot-days

84.2 

180.4 

292.8

2,135.8

296.3 

261.6 

275.8

254 . 8 

302.0 

340.0 

138.6 

92.7 

86.2

2,605.4

May

8.9 

8.4 

8.9 

8.9 

8.9

9.4 

9.4 

9.1 

9.4 

9.6

9.6 

9.6 9.9- 

9.6 

9.6

9.4 

9.4 

9.1 

9.9 

10.5

10 

9.9 

9.9

10 

10

9.6 

9.6 

10.5 

11.5 

11.5 

12

Maximum

6.0 

7.0 

14.5

14.5

12 

12.5 

10.5 

9.1 

12 

13 

7.0 

4.0 

4.2

14.5

June

12 

12 

12.5 

12 

11.5

12.5 

12.5 

12 

12 

12

12.5 

13 

12.5 

12.5 

12

12.5 

12.5 

12.5 

12 

11.5

11.5 

10.5 

10.5 

10 

9.6

9.4 

9.1 

8.6 

8.4 

7.9

July

7.0 

6.2 

6.2 

5.8 

5.6

5.6 

5.6 

5.0 

5.2 

5.2

4.8 

4.7

4.7 

4.3

4.7

4.5 

4.3 

4.2 

4.3 

4.0

4.0 

4.0 

3.5 

3.2 

3.2

3.4 

3.1

2.9 

3.1 

3.2 

3.1

Minimum

.3 

5.2 

3.5

.3

7.2 

6.0 

7.7 

7.9 

8.4 

7.9 

2.9 

1.9 

2.1

.3

Aug.

2.8 

2.8 

2.9 

3.5 

3.8

3.8 

3.8

4.0 

3.8 

3.7

3.5 

3.4 

3.2 

2.9 

2.9

2.9

2.8 

2.4 

2.2 

2.0

1.9

2.0 

2.9

2.9

2.9 

2.8 

'2.9 

2.9 

2.9 

2.7

Mean

2.72 

6.01 

9.45

5.85

9.56 

9.02 

8.90 

8.49 

9.74 

11.3 

4.47 

2.99 

2.87

7.12

Sept.

2.7 

2.7 

2.6 

2.3 

2.1

2.2 

2.4 

2.6 

2.9 

3.1

2.9 

3.1 

2.9 

2.9 

2.8

2.7 

2.7 

2.7 

2.8 

2.8

2.7 

2.7 

2.6 

2.6 

2.3

3.2 

3.8 

4.2 

4.2

4.0

Runoff In 

acre-feet

167 

358 

581

4,240

588 

519 

547 

505 

599 

674 

275 

184 

171

5,170
322 CRAB CRF^K BASIN

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., 

2^ miles upstream from outlet and 7 miles southwest of Coulee City. Datum of gage is 

at mean sea level (Bureau of Reclamation bench mark).

Records available.- March 1938 to September 1948 (fragmentary).

Extremes.- 1938-48: 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, 1947-48

Oct.

Nov.

Dec.

Jan.

21

31

4

12

26

e

12

31

16

26

92

92

92

92

92

93

93

93

93

93

43

46

54

66

86

22

19

23

20

19

Jan.

Feb.

Mar.

Apr.

May

29

9

26

6

9

23

8

22

28

5

93

93

93

93

93

93

93

93

93

93

12

10

27

26

25

22

30

26

22

28

May

June

July

Aug.

Sept

20

11

21

e

22

4

25

7

21

93.36

93.39

93.34

93.10

92.92

92.73

92.69

92.67

92.62

Note.- Add 1,000 feet to obtain elevation above 

mean sea level.

Lenore Lake near Soap Lake, Wash.

Location - Staff gage, lat. 47°31', long. 119°30', in SW£ sec. 1, T. 23 N., R. 26 E. t 5? 

miles upstream from outlet and 9 miles north of town of Soap Lake. Datum of gage is at 

mean sea level (Bureau of Reclamation bench mark).

Records available.- July 1936, March 1938 to September 1948 (fragmentary).

Extremes - 1936, 1938-48: Maximum elevation observed, 1,081.67 feet June 22, 1948; 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, 1947-48

Oct.

Nov.

Dec.

Jan.

21

31

4

12

25

8

10

31

16

23

78

78

78

78

78

78

78

78

79

79

36

45

47

40

44

63

62

95

35

34

Feb.

Mar.

Apr.

May

9

25

8

9

23

8

22

28

5

20

79

79

80

80

80

80

80

80

80

81

60

93

15

11

33

50

65

64

71

07

June

July

Aug.

Sept

11

22

8

22

4

25

7

21

81.56

81.67

81.59

81.50

81.38

81.28

80.96

80.84

Note.- Add 1,000 feet to obtain elevation above mean 

sea level.

Soap Lake near Soap Lake, Wash.

Location.- Staff gage, lat. 47°25', long. 119°30', in SE£ sec. 12, T. 22 N., R. 26 E., ij 

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 1948 (fragmentary).

Extremes.- 1936, 1938-48: Maximum elevation observed, 1,073.37 feet Apr. 15, 1943, June 22, 

194B; minimum 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, 1947-48

Oct.

Nov.

Dec.

Jan.

21

31

4

12

25

8

10

31

16

26

71

71

71

71

71

71

71

72

72

72

66

72

72

72

77

90

88

07

25

30

Jan.

Feb.

Mar.

Apr.

May

29

9

25

8

9

23

8

22

28

5

72

72

72

72

72

72

72

72

72

72

30

42

57

71

71

73

81

89

85

94

May

June

July

Aug.

Sept

20

11

22

8

22

4

25

7

21

73

73

73

73

73

73

72

72

72

12

28

37

21

12

00

79

68

59

Note.- Add 1,000 feet to obtain elevation above 

mean sea level.
CRAB CREEK BASIN 

Rocky Ford Creek near Ephrata, Wash.

323

Location.- Water-stage recorder, lat. 47°18 I 20", long. 119°26'50", in NW£w£ sec. 21, T. 

21 N., R. 27 E., 5^ miles upstream from mouth and 5 miles east of Ephrata.

Records available.- June 1909 tp December 1911 (fragmentary), August 1942 to September 

194S .

Extremes.- Maximum discharge during year, 109 second-feet Aug. 20 (gage height, 2.49 

reet); minimum, 29 second-feet Mar. 21 (gage height, 1.18 feet).

1909-11, 1942-48: Maximum discharge, 120 second-feet Aug. 29, 1942 (gage height, 

2.70 feet), from rating curve extended above 71 second-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 1947-48 (gage height, in feet, 

and discharge, In second-feet)

1,2 30

1.4 38

1.6 48

1.8 59

2.0 71

2.3 93

Discharge, in second-feet, water year October 1947 to September 19*8

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

38 

37 

38 

37 

37

37 

37 

37 

37 

38

38 

38 

37 

37 

38

37 

37 

37 

37 

37

37 

37 

37 

36 

36

36 

36 

57 

37 

37 

37

Nov.

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

35

35 

36 

35 

35 

35

35 

35 

35 

35 

35

Dec.

34 

35 

35 

34 

34

34 

34 

34 

34 

34

34 

34 

34 

34 

34

34

34 

34 

33 

33

33 

33 

33 

33 

33

33 

S3 

33 

33 

33 

33

Jan.

33 

33 

32 

32 

32

32 

33 

32 

32 

32

32 

32 

32 

32 

32

31 

32 

32 

32 

32

32 

31 

31 

31 

31

31 

32 

32 

32 

32 

32

Feb.

32 

32 

32 

32

31

31 

31 

31

31 

31

31 

31 

31 

31 

31

31 

31 

31 

31 

31

31 

31

31

31 

31

31 

31 

31 

31

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

31 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

31 

31 

31

31 

31 

32 

32 

32 

32

Apr.

33 

33 

34 

34 

34

34 

34 

35 

35 

35

36 

36 

36 

36 

36

37 

37 

38 

38 

38

38 

38 

39 

40 

40

40 

40 

42 

42 

41

Secondroot-days

1,149 

1,070 

1,043

15,205

989 

903 

944 

1,109 

1,466 

1,779 

2,335 

2,640 

2,625

18,052

May

41 

42 

42 

42 

42

43 

44 

44 

44 

46

46 

46 

46 

46 

47

48 

48 

48

50 

50

50 

50 

50 

50 

50

51 

52 

52 

52 

52 

52

Maximum

38 

36 

35

56

33 

32 

32 

42 

52 

67 

82 

89 

91

91

June

52 

53 

53 

54 

54

55 

55 

55 

56 

57

58 

58 

58 

58 

59

61 

60 

60 

61 

61

61 

62 

63 

63 

64

64 

65 

66 

66

July

67 

68 

69 

70 

70

71 

72 

72 

72 

73

74 

74 

74 

74 

75

7 '3

7 '3

77 

77 

77

73 7^> 

73 

73 

73

73 

73 

81 

81 

81 

83

Minimum

36 

35 

33

33

31 

31 

30 

33 

41 

52 

67 

82 

84

30

Aug.

82 

82 

82 

82 

83

83 

83 

84 

84 

84

84 

84 

84 

84 

85

85 

85 

85 

85 

89

87 

87 

87 

88 

88

87 

87 

87 

87 

89 

87

Mean

37.1

35.7 

33.6

41.7

31.9 

31.1 

30.5 

37.0 

47.3 

59.3 

75.3 

85.2 

87.5

49.3

Sept.

87 

88 

90 

89 

88

88 

89 

90 

89 

89

90 

88 

89 

89 

91

89 

89 

90 

89

87

85 

85 

84 

84 

84

85 

86 

84 

84 

85

Hunoff in 

acre-feet

2,280 

2,120 

2,070

30,160

1,960 

1,790 

1,870 

2,200 

2,910 

3,530 

4,630 

5,240 

5,210

35,810
324 YAKIMA RIVER BASIN

Yakima River near Martin, Wash.

Location.- Water-stage recorder, lat. 47°19'10", long. 121 0 20'10", just downstream frwn

 dam at outlet of Keechelus Lake, 3? miles northwest of Martin, Kittitas County, and 

12 miles upstream fr»m Boston.

Drainage area.- 55 square miles.

Records available.- October 1903 to September 1948.

Average discharge.- 44 years (1904-48), 323 second-feet (adjusted for storage since 

January 1906).

Extremes.- Maximum discharge during year, 4,150 second-feet May 29; minimum, 0.4 second-

 foot Oct. 29, 30, 31 (gage height, 2.02 feet).

1903-48: Maximum discharge, 7,3/0 second-feet Mar. 26, 1915, when tenporary crib 

dam was washed out; practically no flow when gates in Keechelus Lake Dam are closed.

Remarks.- Records good except those below 15 second-feet, which are fair. Flow regulatec

 by Keechelus Lake (see p.330). Keechelus Lake spillway discharge, computed from reservoir elevations and spillway rating, bypasses gage and is added to flov at station. 

Spill occurred May 26 to July 13. Figures of daily discharge not adjusted for change 

in contents of Keechelus Lake.

Cooperation.- Records collected and prepared in cooperation with Bureau of reclamation. 

Revisions.- W 332: Drainage area.

 

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

C6

27 

28 

29 

30 

31

Oct.

352

370 

370 

370 

370

370 

370 

370 

370 

370

370 

370 

370 

253 

66

3.0 

3.0 

1.9 

2.4 

2.2

1.3 

0.7 

.6 

.6 

.5

.5 

.5 

.5 

.4

.5 

.5

Nov.

0.7 

.7 

.7 

.7 

.8

.9 

1.6 

2.4 

1.3 

1.0

1.9 

1.0 

1.0

1.0 

.8

.7 

.9 

1.6 

1.0 

.8

1.0 

1.9 

1.6 

192 

316

325 

3Z5 

334 

334 

334

Month

Ooto 

Move 

Dece

Cal

Janu 

Febr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Wat

andar year 1947

amber. ..........

sr year 1947-48

Dec.

110 

5.9 

5.2 

4.9 

249

334 

334 

334 

334 

334

334 

334 

334 

334 

334

334 

334 

334 

334 

334

334 

334 

334 

334 

334

125 

5.6 

5.2 

4.9 

4.6 

4.6

Jan.

4.6 

4.2

3.9 

3.9 

3.9

3.9 

3.9 

3.9 

3.9 

3.9

3.9 

3.9 

3.6 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

3.6 

3.9 

3.9 

3.9

3.6 

3.6

3.6 

3.6 

3.6 

3.6

Feb.

3.6 

3.6 

3.3 

59 

92

93 

92 

94 

93 

93

92 

92 

92 

92 

91

91 

91 

93 

9Z 

J2

91 

92 

92 

92 

92

92 

92 

92 

92

Mar.

92 

92 

92 

92 

92

91 

91 

91 

91 

92

92 

91 

91 

91 

91

91

91

91

92 

93

92 

92 

92 

92 

91

91 

92 

92 

92 

92 

92

Observed

Discharge in 

seoond-feet

Maximum

370 

334 

334

1,430

4.6 

94 

93 

93 

3,230 

2,020 

642 

1,190 

1,040

3,230

"^- 

0.4 165 

.7 72.9 

4.6 232

.4 396

3.6 2.78 

3.3 81.8 

91 91.6 

4.9 61.2 

4.9 468 

293 1,209 

389 513 

481 574 

481 897

.4 364

Runoff 

in 

acre-feet

10,180 

4,340 

14,290

286,400

232 

4,700 

5,630 

3,640 

28,760 

71,930 

31,560 

35,280 

53,400

263,900

Apr.

93 

92 

92 

92 

92

92 

92 

92 

92 

92

92 

92 

92 

91 

92

92 

92 

92 

92 

37

5.2 

4.9 

5.2

5.6 

5.6

5.2 

4.9 

4.9 

4.9 

4.9

May

4.9 

4.9

5.9 

6.5 

6.2

7.2 

6.5 

6.5 

6.2 

6.2

6.2 

6.2 

6.2 

6.2 

6.5

6.5 

6.9 

6.7 

98 

248

220 

146 

147 

432 

813

965 

1,920 

3,170 

3,230 

1,680 

1,320

Change in 

contents

In 

Keechelus 

Lake 

(acre-feet)

-(-19,180

+30,030 

+1,960

-14,080

+9,740 

+4,610 

+3,660 

+13,930 

+35,430 

+350 

-14,590 

-28,6£0 

-46,620

+29,000

June

1,370 

1,490

1,670 

1,530 

1,400

1,490 

1,770 

1,950 

1,990 

2,020

1,970 

1,720 

1,410 

1,200 

1,040

1,010 

1,060 

992 

938 

925

1,050 

1,080 

974 

910 

642

293 

413 

540 

695 

722

July

642 

552 

4S7 

411 

389

411 

445 

400 

393 

431

433 

467 

500 

554 

554

554 

554 

554 

554 

554

554 

554 

554 

554 

554

554 

554 

554 

554 

554 

554

Ang.

554 

554 

554

1,190 

1,020

554 

554 

554 

554 

554

554 

554 

554 

554

554

554 

554 

554

554 

554

554 

554 

554 

554

505

481 

481 

481 

481 

481 

481

Sept.

481 

517 

714 

837 

837

837 

869 

869 

936 

970

970 

970 

1,000 

1,040 

1,040

1,040 

1,040 

1,009 

1,000 

1,000

1,000 

1,000 

1,000 

1,000 

938

902 

837 

775 

775 

730

Adjusted for change In 

reservoir contents

Runoff 

in 

acre-feet

29,360 

34,370 

16,250

272,300

9,970 

9,310 

9,290 

- 17,570 

64,190 

72,280 

16,970 

6,600 

6,780

292,900

Discharge in 

second -feet

Per 

Mean square 

mile

477 8.67 

578 10.5 

264 4.80

376 6.84

182 2.95 

162 2.95 

151 2.75 

295 5.36 

1,044 19.0 

1,215 22.1 

276 5.02 

107 1.95 

114 2.07

404 7.35

Runoff

inches

10.01 

11.72 

5.54

92.82

3.40 

3.17 

3.17 

5.99 

21.88 

24.64 

5.79 

2. '25 

2.31

99.87
YAKIMA RIVER BASIN 325

Yakima River at Cle Elum, Wash.

Location.- Water-stage recorder, lat. 47°11'20", long. 120°56'40" , in sec. 27, T. 20 N., 

K. lb~S., at highway bridge at Cle Elura, Just upstream from Roslyn Greek and 7 miles 

upstream from Teanaway.River.

Drainage area.- 500 square miles.

Records available.- August 1906 to September 1948.

Average discharge.- 42 years. 1-.922 second-feet (adjusted for storage since October 1906 

ana diversions since 1930).

Extremes.- Maximum discharge during year, 16,^00 second-feet May 29 (gage height, 12.31 

feet); minimum, 196 second-feet Oct. 17 (gage height, 4.15 feet).

1906-48: Maximum discharge, 25,600 second-feet Nov. 14, 1906 (gage height, 12.5 

feet, from floodmarks); minimum, 64 second-feet Nov. 16, 17, 1929, Dec. 4, 1936.

Remarks.- Records good. Kittitas high-line canal diverts water above station for irrigation. Plow partly regulated by Keechelus, Kachess, and Cle Elum Lakes (see p. 330). 

Figures of daily discharge not adjusted for diversion or change in contents of lakes.

Cooperation.- Records collected and prepared in cooperation with Bureau of Reclamation. 

Revisions (water years).- W 369: 1910, 1911. W 832: 1936.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

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.

978 

986 

1,150 

901 

725

672 

643 

636 

628 

592

461 

382 

338 

326 

241

220 

220 

441 

803 

1,010

1,370 

1,180 

564 

268 

241

351 

351 

345 

332 

326 

338

Nov.

389 

415 

435 

448 

461

672 

395 

1,070 

1,620 

1,420

1,740 

1,470 

1,420 

1,320 

1,220

1,110 

1,120 

1,270 

1,220 

1,110

1,040 

978 

918 

893 

1,140

1,470 

1,850 

1,970 

2,090 

2,030

Month

Octo 

Nove 

Deoe

Cal

Janu 

Febr 

Haro 

Apri 

May.

June 

July 

Augu 

Sept

Wat

endar year 1947

h... ............

ember. ..........

sr year 1947-48

Dec.

2,030 

2,030 

2,280 

2,090 

1,790

2,090 

2,150 

2,150 

2,150 

2,090

2,090 

2,090 

2,090 

2,150 

2,150

2,220 

2,150 

2,220 

2,150 

2,150

2,150 

2,090 

2,030 

2,030 

2,030

1,970 

1,470 

1,370 

1,150 

961 

788

Jan.

"461 

448 

421 

395 

376

370 

376 

364 

345 

338

338 

314 

302 

332 

314

268 

279 

246 

241 

236

246 

279 

382 

441 

421

389 

364 

345 

326 

326 

314

Feb.

302 

285 

285 

279

308

338 

408 

421 

395 

370

345 

376 

351 

338 

351

357 

370 

395 

389 

376

395 

481 

522 

475 

515

680 

695 

665 

614

Bar.

592 

578 

550 

522 

509

488 

481 

481 

461 

454

448 

441 

435 

428 

435

441 

435 

448 

441 

428

475 

657 

628 

578 

592

571 

571 

585 

643 

680 

687

Observed

Discharge in 

second-feet

Maximum

1,370 

2,090 

2,280

5,900

461 

695 

6B7 

1,420 

L6,300 

11,400 

4,000 

3,190 

2,150

16,300

Minimum

220 

389 

788

220

236 

279 

423 

345 

733 

2,700 

2,480 

1,970 557*

220

Mean

581 

1,157 

1,947

1,899

342 

417 

521 

815 

4,130 

7,105 

2,887 

2,579 

1,606

2,009

Runoff In - 

acrefeet

35,740 

68,830 H 

119,700

1,375,000

21,020 

23,960 

32,060 

48,490 

253,900 -I 

422,800 

177,500 - 

158,600 - 

95,580 -

1,458,000 +

Apr.

695 

630 

680 

650 

621

599 

585 

571 

564 

571

585 

578 

395 

345 

351

448 

522 

668 

1,020 

1,130

1,180 

1,270 

1,320 

1,370 

1,420

1,270 

1,170 

1,080 

1,0000 

909

Change 

In 

:ontents 

(acrefeet )t

+91,700 

100,800 

-21,390,

-84,030

+39,140 

+31,490 

+30,970 

+76,860 

143,400 

+16,250 

135,100 

170,900 

102,200

100,900

May

827 

756 

733 

852

893

1,140 

1,470 

1,570 

1,620 

1,680

1,740 

1,850 

2,090 

2,220 

2,220

2,340 

2,510 

2,660 

2,840 

3,640

3,860 

2,600 

2,320 

2,660 

6,050

8,790 

10,600 

14,300 

16,300 

13,700 

11,200

Diversion by 

Kittitas 

Canal 

(acrefeet)

12,190 

O 

0

280,700

0 

0 

0 

1,190 

9,050 

28,860 

65,040 

55,490 

43,100

214,900

June

9,840 

9,780 

10,400 

10,500 

10,500

11,000 

11,200 

11,300 

11,400 

10,900

10,400 

10,200 

8,640 

6,930 

5,600

4,920 

5,790 

5,810 

5,570 

5,140

5,070 

5,120 

4,910 

4,500 

3,820

2,940 

2,700 

2,700 

2,780 

2,780

July

2,700 

2,480 

3,45O 

4,000 

4,000

3,190 

2,620 

2,550 

2,550 

2,620

2,620 

2,700 

2,700 

2,700 

2,780

2,780 

2,780 

2,700 

2,700 

2,620

2,700 

2,700 

2,860 

2,940 

2,940

2,940 

3,020 

3,100 

3,020 

3,020 

3.O20

Adjusted for 

contents and

Runoff 

In 

acrefeet

139,600 

169,600 

98,310

1,572,000

60,160 

55,450 

63,030 

126,500 

406,400 

467,900 

107, 400 

43,190 

36,480

1,774,000

Aug.

3,100 

2,940 

2,340 

1,970 

2,22O

2,280 

2,150 

2,150 

2,090 

2,150

2,220 

2,280 

2,780 

3,100 

3,190

3,100 

2,860 

2,620 

2,550 

2,620

2..620 

2,700 

2.700 

2,780 

2,700

2,620 

2,620 

2,700 

2,700 

2,700 

2,410

Sept.

2,150 

2,090 

2,090 

2,030 

1,970

1,970 

1,910 

1,970 

1,970 

1,970

1,970 

1,970 

1,970 

1,970 

2,030

1,970 

1,910 

1,790 

1,740 

1,520

1,270 

1,110 

1,040 

1,040 

1,080

1,060 

909 

599 

564 

557

change In 

diversion

Discharge in 

secind-feet

Mean

2,270 

2,850 

1,599

2,171

978 

964 

1,025 

2,126 

6,609 

7,863 

1,747 

702 

613

2,444

Per 

square 

mile

4.54 

5.70 

3. 2O

4.34

1.96 

1.93 

2.05 

4.25 

13.2 

15.7 

3.49 

1.40 

1.23

4.89

Runoff

inches

5.23 

6.36 

3.69

48.41

2.26 

2.08 

2.36 

4.74 

15.24 

17.55 

4.03 

1.62 

1.37

66.53

t Change In contents in Keechelus, Kachess, and Cle Elum Lakes.
326 YAKIMA RIVER BASIN

Yakima River at Umtanum, Wash.

Location.- Water-stage recorder, lat. 46°51>45", long. 120n 28'30", in NWtr sec. 20, T. 16

ft. , H. 19 E., at Umtanum, half a mile upstream from Umtanum Creek and 10 miles south

of Ellensburg. Datum of gage is 1,300.0 feet above mean sea level, datum of 1923.. 

Drainage area.- 1,620 square miles.

Records available.- August 1906 to September 1948 (fragmentary October 1915 to March 

1931) . ' 

Extremes.- Maximum discharge during year, 27,800 second-feet May 29 (gage height, 38.98

feet); minimum, 534 second-feet sometime during period Dec. 25 to Jan. 2< (gage height,

30.38 feet, from recorded range in stage).

1906-48: Maximum discharge, 41,000 second-feet Nov. 15 or 16, 1906 (gage height,

41.1 feet, from floodmarks, present datum); minimum, 138 second-feet Oct. 3, 1915

(gage height, 2.86 feet, datum then in use). 

Remarks.- Records excellent except those for period of no gage-height record, which are

fair. Flow partly regulated by Keechelus, Kachess, and Cle Elum Lakes (see p. 330).

Water diverted above station for irrigation of about 91,000 acres.

Cooperation.- Records collected and prepared in cooceration with Bureau of Reclamation. 

Revisions Cwatsr years).- W 412: 1914.

Rating tables, water year 1947-48 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to May 28 May 29 to Sef

30 

30 

30 

31

.4 55 

.6 72 

.8 92 

.0 1,16 

Note.- S

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.

1,450 

1,410 

1,580 

1,580 

1,400

1,230 

1,170 

1,150 

1,160 

1,260

1,280 

1,140 

1,030 

992 

992

840 

772 

870 

1,400 

2,120

2,280 

2,200 

1,810 

1,230 

956

956 

1,000 

944 

910 

920 

900

0 31.3 1,54 

5 31.6 1,97 

3 32.0 2,63 

3 32.5 3,59 

arae as following

Discharge, 1

Nov.

1,030 

1,200 

1,150 

1 , 100 

1,060

1,090 

1,100 

1.O9O 

2,360 

2,200

2,360 

2,360 

2,120 

2,120 

1,940

1,810 

1,710 

1,900 

1,960 

1,810

1,680 

1,570 

1,490 

1,410 

1,460

1,850 

2,720 

2,810 

2,900 

2,900

Dec.

2,810 

2,720 

2,810 

2,810 

2,540

2,540 

2,720 

2,720 

2,720 

2,630

2,630 

2,630 

2,540 

2,720 

2,720

2,720 

2,720 

2,720 

2,720 

2,720

2,630 

2,630 

2,540 

2,540 

2,540

2,450 

1,900 

1,800 

1,550 

1,350 

1,200

3 33.0 4,700 31.0 1,170 33.0 4,580 3G.O 14,700 

3 33.5 5,960 31.5 1,770 33.5 5,940 37.0 18,800 

3 34.0 7,420 32.0 2,490 34.0 7,420 38.0 23,200 

J 32.5 3,430 35.0 10,800 39. O £7,800 

table above 34.0

n second-feet, water year October 1947 to Septemberl948

Jan.

860 

840 

820 

800 

800

780 

760 

740 

720 

700

680 

660 

650 

640 

660

620 

640 

600

600 

580

600 

700 

900 

1,100 

1,080

944 

86U 

840 

810 

801 

763

Feb.

734 

707 

653 

662 

644

662

734 

734 

734 

707

644 

601 

689

698 

680

707 

830 

1,020 

810

763

754 

1,260 

1,450 

1,150 

1,060

1,650 

1,570 

1,450 

1,360

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1947

h. ......................................

ter year 1947 48 .......................

Mar.

1,270 

1,220 

1,150 

1,110 

1,060

1,040 

1,030 

1,003 

992

968

920 

910 

880 

880 

880

830 

890 

900 

390 

860

870 

1,110 

1,370 

1,290 

1,320

1,280 

1,230 

1,270 

1,500 

1,780 

1,810

Apr.

1 

1 

1 

1 

1

1

1 

1 

1 

1

1 

1

1 

1 

1

2 

2 

2

3

3

3 

4 

4 

3 

3

3 

2 

2

2

Secondfoot-days

38,932

54,260 

76,990

978,016

23,548 

26,117 

34,560

69,220 

223,850

101,770 

96,540 

58,930

1,077,027

810 

810 

810 

710 

610

510 

410 

340 

330 

340

380 

370 

280 

160 

240

090 

900 

900 

190 

49O

910 

130 

020 

700 

590

190 

810 

630 

360

200

May

2,040 

1,94C 

1,940 

2,540

2,630

3,100 

4,580 

4,360 

4,020 

4,020

3,910 

3,910 

4,240 

4,360 

4,130

4,360 

4,600 

4,730 

4,790 

6,650

8,400 

7,460 

6,890 

6,490 

7,960

11,600 

13,800 

18,500 

26,200 

22,700 

17,000

Maximum

2,280 

2 , 900 

2,810

7,480

1,100 

1,650 

1,810 

4,130 

26,200 

14,100 

4,330 

3,860 

2,410

26,200

June

14,100 

13,000 

12,600 

12,700 

12,200

12,400 

12,800 

12,800 

12,700 

12,500

12,500 

12,500 

11,400 

9,420 

8,060

7,370 

8,750 

8,440 

7,840 

7,490

7,010 

6,820 

6,520 

6,080 

5,380

4,460 

3,860 

3,640 

3,540 

3,430

July

3,230 

3,030 

3,230 

4,090 

4,210

4,330 

3,330 

3,230 

3,130 

3,130

3,230 

3,230 

3,130 

3,130 

3,130

3,130 

3,030 

3,230 

3,230 

3,130

3,130 

3,030 

3,030 

3,230 

3,230

3,230 

3,230 

3,330 

3,330 

3,230 

3,230

Aug.

3,430 

3,430 

3,230 

2,660

2,580

3,030 

2,840 

2,840 

2,750 

2,750

2,750 

2,750 

2,840 

3,430 

3,750

3,860 

3,750 

3,540 

3,230 

3,230

3,130 

3,230 

3,230 

3,230 

3,230

3,130 

3,030 

2,940 

2,940 

2,940 

2,840

Minimum Me'jn

772 1,256 

1,030 1,809 

1,200 2,484

750 2,679

580 760 

601 901 

860 1,115 

1,160 2,307 

1,340 7,221 

3,430 9,077 

3,030 3,283 

2,580 3,114 

1,190 1,964

580 2,943

Sept.

2,410 

2,330 

2,260 

2,260 

2,180

2,180 

2,180 

2,180 

2,180 

2,180

2,110 

2,110 

2,110 

2,110 

2,110

2,180 

2,180 

2,110 

2,110 

1,970

1,770 

1,640 

1,520 

1,500 

1,510

1,640 

1,900 

1,580 

1,240 

1,190

Runoff In 

acre-feet

77,220 

107,600 

152,700

1,940,000

46,710 

51,800 

68,550 

137,300 

444,000 

540,100 

201,900 

191,500 

116,900

2,136,000
YAKIMA RIVER BASIN 

Yakima River near Parker, Wash.

327

Location.- Water-stage recorder, lat. 46°29'40", long. 1SO°26'10", in sec. 28, T. 12 N.,

 IT! 19 K., just downstream from Sunnyside diversion dam, IT miles east of Parker, and

3 miles downstream from Ahtanum Creek. 

Drainage area.- 3,560 square miles.

Records available.- April 1908 to September 1921, October 1931 to September 1948. 

Extremes.- Maximum discharge during year, 37,700 second-feet May 2P (gage height, 13.82

 feet); minimum, 56 second-feet Oct. 7 (gage height, 1.08 feet).

1908-21, 1931-48: Maximum discharge, 65,000 (revised) 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.

Revisions.- The maximum discharge for the water year 1934 has been revised to 65,000 

second-1'eet Dec. 23, 1933 (gage height, 15.0 feet), superseding figure published in 

Water-Supply Paper 767. 

Remarks.- Records good except those below 250 second-feet, which are fair. Diversions

 above station for irrigation of ! r^u area. During the irrigation season when Sunnyside 

Canal is carrying water as much as 18 second-feet, denending 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. 330). Figures of daily discharge not adjusted for diversions or change in contents of reservoirs. "Adjustment of 

monthly discharge for change in reservoir contents discontinued in Water-Supply Paper 

1092.

Cooperation.- Records collected and prepared in cooperation with Bureau of Reclamation 

and OlTice of Indian Affairs.

Revisions (water years).- W j'cL: 1942. Revised figures of discharge, in second-feet,

 Tor the nigh-water period in the water year 1934, superseding those published in WaterSupply Paper 767, are given herewith:

Month

Water year 1933-34

Yakima River 

(mean,

second-feet)

4,995

Combined flow 

of River and

canals (mean, 

second- feet)

6,556

Change in contents in up-

(equivalent, 

second-feet)

-161

Combined flow 

for change in

Mean 

(second-feet)

6,395

adjusted 

contents

Runoff in 

acre-feet

4,630,000

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

372

232

340

604

346

146

100

136

147

320

473

356

213

179

174

260

418

621

1,620

4,160

3,840

3,380

2,760

2,450

2,100

1,940

2,000

1,940

1,940

1,830

1,830

Nov.

2,100

2,510

2,390

2,270

2,160

2,050

2,160

2,330

3,450

3,660

3,760

4,060

3,660

3,600

3,380

3,090

2,960

3,380

3,920

4,080

3,760

3,520

3,380

3,230

3,160

3,520

4,760

5,290

5,110

5,110

-

Dec.

4,930

4,930

4,930

4,930

4,590

4,250

4,590

4,590

4,590

4,420

4,420

4,420

4,420

4,590

5,110

5,110

5,290

5,290

5,470

5,290

5,290

5,110

4,250

4,250

4,250

4,250

3,640

3,300

3,230

2,960

2,510

Jan.

2,270

2,100

2,050

1,940

1,660

1,660

2,050

1,940

1,760

1,670

1,670

1,620

1,470

1,330

1,280

1,280

1,280

1,260

1,260

1,330

1,420

1,470

1,780

2,270

2,160

1,940

1,670

1,520

1,520

1,620

1,620

Feb.

1,620

1,570

1,420

1,420

1,420

1,330

1,240

1,330

1,420

1,760

1,720

1,670

1,940

2,220

2,220

2,220

2,880

3,230

2,330

2,050

1,940

2,050

3,230

2,570

2,390

3,020

3,450

3,090

2,960

-

-

Mar.

2,620

2,700

2,630

2,450

2,450

2,330

2,390

2,330

3,020

2,630

2,510

2,220

2,050

2,050

1,630

1,520

1,520

1,360

1,240

1,110

1,010

1,240

1,470

1,380

1,280

1,260

1,120

1,240

1,420

1,830

1,940

Apr.

1,660

1,660

1,940

1,940

1,630

1,330

1,200

1,050

674

666

1,020

750

412

194

250

1,090

2,640

3,090

3,090

3,380

3,640

4,250

4,000

3,450

3,160

2,510

1,620

1,200

736

376

-

May

320

345

499

998

1,360

1,630

3,570

3,680

3,160

2,960

2,760

2,760

3,160

3,300

3,090

3,680

3,630

4,160

4,350

6,260

10,100

11,000

10,400

9,770

12, 300 ^

17,100

22,600

27,600

35,400

33,100

23,200

June

17,600

16,500

17,200

16,600

17,700

17,400

18,500

19,000

19,000

16,300

19,000

19,700

16,500

13,600

11,000

10,100

11,700

11,600

10,600

10,000

9,650

9,070

8,070

7,150

6,510

5,510

4,590

4,000

3,160

3,300

-

July

2,960

2,450

2,000

2,700

3,020

3,090

2,100

1,470

772

325

236

224

142

167

350

356

320

436

646

448

207

165

96

207

277

264

142

277

340

136

73

Aug.

140

340

264

399

305

646

646

506

265

68

106

67

72

/206

456

780

742

616

369

247

131

247

372

286

330

149

94

109

133

127

154

Sept.

197

173

131

78

173

167

159

136

176

200

170

93

207

200

310

325

372

378

378

330

277

207

113

106

123

267

772

795

466

492

-

939922 O - 51 - 22
328 YAKIMA RIVER BASIN

Monthly discharge, in second-feet, of'Yakiraa River near Parker, Wash., 1947-48

Month

December ............

Calendar year 1947

September. ..........

Water year 1947-48

Mean discharge, in second-feet

Yakima 

River 

near 

Parker

1,214 

3,396 

4,497

2,400

1,689 

2,129 

1,884 

1,862 

8,660 

12,490 

852 

304 

266

3,263

Roza 

Canal 

at Mile 

26.9

135 

0 

0

267

0 

0 

130 

324 

414 

566 

662 

622 

442

276

Union Gap 

Canal 

(estimated)

3 

0 

0

18.2

0 

0 

0 

25 

30 

30 

3L 

35 

35

16.1

New 

Reservation 

Canal

485 

0 

0

946

0 

0 

114 

860 

1,926 

1,651 

1,890 

1,698 

1,327

832

Old 

Reservation 

Canal

7.4

6.0 

4.0

25.6

1.9

5.0 

4.9 

27.1 

54.8 

13.5 

41.9 

5.9 

3.0

14.7

Sunnyside 

Canal

455 

0 

0

658

0 

0 

234 

921

1,206 

1,225 

1,265 

1,251 

1,020

633

Combined 

flow, 

Yakima 

River and 

canals

2,299 

3,402 

4,501

4,315

1,691 

2,134 

7,367 

4,019 

12,290 

15,980 

4,746 

3,916 

3,093

5,035

Combined 

flow of 

Yakima 

River and 

canals 

(acre-feet)

141,400 

202 , 400 

276,800

3,124,000

104,000 

122,700 

145,500 

239,100 

755,700 

950,900 

291,800 

240,800 

184,000

3,655,000

Note.- 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 given herein show 

flow in these canals that reaches 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 headworks. Combined flow represents flov of Yakima River 

that reaches valley below Union Gap.
YAKIMA RIVER BASIN 329

Yakirna River at Kiona, Wash.

Location.- Water-stage recorder, lat. 46°15'10", long. 119°28'50", in sec. 19, T. 9 K.,

H~nr7~E., at highway bridge at Kiona, 3§- miles dovmstream from intake of Kiona Canal

and 25 miles upstream from mouth. 

Drainage area.- 5,520 square miles.

Hecords available.- August 1896 to March 1915, February 1933 to September 1948. 

Extremes.- Maximum discharge during year, 37,900 second-feet May 31 (gage height, 17.20

feet); minimum, 1,550 second-feet Aug. 15 (gage height, 3.80 feet).

1896-1915, 1933-48: Maximum discharge, 67,000 second-feet (revised) D?c. 23, 1933

(gage height, 21.57 feet,' from high-water marks); minimum, 105 second-feet Sept. 11,

1906 (gage height, 2.35 feet).

Revisions.-The maximum discharge for the water year 1934 has been revised to 67,000

second-feet i)ec. 23, 1933 (gage height, 21.57 feet), superseding figure published in

Water-Supply Paper \ 87. 

Remarks.- Records excellent except those for period of shifting control, which are good.

Water diverted above gage for irrigation of large acreage. Flow partly regulated by

diversions and by Keechelus, Kachess, Cle Elum, and Bumping Lakes, and Tieton Reservoir

(see following page).

Cooperation.- Records collected and prepared in cooperation with Bureau of Reclamation. 

Kevisions (water years).- W 214: 1950.

Rating table, water year 1947-48, except period of shifting-control 

(gage height, in feet, and discharge, in second-feet)

3.7 1,500 5.5 3,880 9.O

4.0 1,810 6.0 4,690 10.0

4.5 2,420 7.0 6,450 11.0

5.0 3,120 8.0 8,390 12.0

10,500 13.0 20,400

12,700 14.0 23,800

15,100 15.0 27,600

17,600 17.0 36,900

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,980

2,040

1,920

1,920

2,100

2,040

1,920

1,810

1,860

1,920

1,980

1,980

1,980

1,980

1,980

1,980

1,920

2,040

2,290

3,420

5,370

5,370

5,030

4,520

4,200

3,800

3,570

3,500

3,500

3,420

3,270

Nov.

3,270

3,420

3,720

3,720

3,E70

3,420

3,340

3,340

3,420

4,360

4,690

4,690

5,030

4,690

4,690

4,360

4,200

4,040

4,200

4,690

4,860

4,690

4,360

4,200

4,200

4,040

4,360

5,370

5,730

5,910

-

Dec.

5,910

5,730

5,730

5,730

5,730

5,550

5,200

5,370

5,550

5,370

5,200

5,200

5,200

5,200

5,370

5,730

5,910

5,910

5,910

6,090

6,270

6,090

6,090

5,370

5,200

5,200

5,200

4,860

4,360

4,200

3,960

Jan.

3,500

3,270

3,120

3,120

2,970

2,970

3,270

4,040

4,690

3,720

3,270

3,270

3,040

2,760

2,550

2,480

2,420

2,420

2,360

2,290

2,290

2,420

2,480

2,830

3,340

3,270

2,900

2,620

2,420

2,420

2,550

Feb.

2,620

2,480

2,420

2,220

2,290

2,360

2,100

2,040

2,100

2,220

2,480

2,480

2,290

2,550

2,980

3,340

3,720

5,200

6,090

4,200

3,640

3,500

4,520

5,200

4,520

4,200

5,370

5,550

4,860

-

Month

October. .....................

Novembe r ......................... ....

December .............................. ....

Calendar year 1947 ......................

January ............................ . ....

February ................... .

March. ....................... ...

April ......................................

May. ......................... .

June ......... ............... . . . ....

July.. ...... ..............................

August .......................

September ........................... . .

Water year 1947-48 ...... ...............

Mar.

4,690

4,360

4,360

4,040

3,880

3,800

3,640

3,640

3,570

4,040

3,800

3,640

3,420

3,200

3,120

2,970

2,620

2,690

2,760

2,690

2,550

2,550

3,120

3,340

3,340

3,200

3,270

3,120

3,200

3,420

3,880

Apr.

4,

4,

4,

4,

4,

4,

3,

3,

3,

2,

2,

2,

2,

2,

2,

1,

2,

4,

4,

4,

5,

5,

5,

5,

5,

5,

4,

3,

3,

2,

Secondfoot-days

86,610

128,580

168,390

1,374,950

91,070

99 530

105* 920

113)470

283,640

494,060

79,050

57,870

55,970

1,764,160

040

040

040

040

040

040

420

270

120

900

900

970

550

290

100

860

420

040

690

690

030

370

910

730

200

030

360

640

120

620

-

May

2,220

1,323

1,860

1,920

2,290

2,970

3,420

4,860

5,200

5,030

4,860

4,860

4,860

5,370

5,550

5,550

5,840

6,030

6,510

6,920

8,500

11,200

12,400

12,800

12,500

12,800

14,600

18,700

23,000

32,300

36,800

Maximum

5,370

5,910

6,270

10,700

4,690

6,090

4,690

5,910

36,800

29,900

4,860

2,160

2,550

36,800

June

29,900

23,900

21,000

19,900

20,300

20,300

19,700

19,900

20 , 400

20,800

2O.90O

21,000

21,900

20,800

18,500

16,300

15,100

15,400

15,800

15,100

14,300

13,400

12,700

11,600

10,200

9,200

7,990

6,830

5,910

5,030

-

Minimum

1,810

3,270

3,960

1,260

2,290

2,040

2,550

1,860

1,860

5,030

1,700

1,550

1,650

1,550

July

4,860

4,360

3,800

3,340

3,960

4,520

4,520

3,720

3,120

2,760

2,420

2,160

2,040

1,920

1,810

1,860

1,860

1,810

1,810

2,100

2,040

1,860

1,700

1,700

1,810

1,920

1,920

1,810

1,810

1,920

1,810

Aug.

1,700

1,6

1,7

1,8

50

60

60

1,810

1,8

1,9

2,1

1,9

60

20

00

80

1,920

1,760

1,5

1,5

1,5

50

00

50

1,550

1,650

2,1

2,1

2,1

00

60

00

1,860

1,760

1,8

1,8

1,9

10

60

80

2,100

2,100

2,1

1,9

fl,9

hi, 8

00

80

20

60

fl,860

Mean

2,794

4,286

5,432

3,767

2,938

3,432

3,417

3,782

9,150

16,470

2,550

1,867

1,866

4,820

Sept.

1,860

1,920

1,920

1,920

1,860

1,810

1,860

1,860

1,810

1,760

1,760

1,700

1,650

1,650

1,650

1,700

1,760

1,860

1,920

1,920

1,860

1,810

1,810

1,760

1,760

1,760

1,860

2,290

2,550

2,360

-

Runoff in 

acre-feet

171,800

255,000

334,000

2,727,000

180,600

197,400

210,100

225,100

562,600

980,000

156,800

114,800

111,000

3.499.000

f Computed on basis of partly estimated gage-height record.

h Computed from staff-gage reading.

Note.- Shifting-control method used June 23 to Sept. 30.
330 YAKIMA RIVER BASIN

Reservoirs in Yakima River Basin, Wash.

Keechelus Lake.- Staff gage, lat. 47°19 I , long. 121°20', at dam on Yakima River in NE^ 

sec. IB, T. 21 N., R. 11 E., at outlet of Keechelus Lake, 3j miles northwest of Martin 

and 9-5 miles northwest of Easton. Datum of gage is at mean sea level (Bureau of Reclamation bench mark). Records available, January 1906 to September 1948. Maximum contents observed during year, 157,440 acre-feet May 29 (elevation, 2,516.87 feet); minimum observed, 34,860 acre-feet Oct. 15 (elevation, 2,451.93 feet). Maximum contents 

observed during period 1906-48, 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 crxb 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 (elevstion, 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 I , long. 121°12', at dam on Kachess River in SW-Jsec. 34, T. 21 N., R. 13 E., at outlet of Kachess Lake and Zj miles northwest of 

Easton. Datum of gage is at mean sea level (Bureau of Reclamation bench mark). Records available, September 1905 to September 1948. Maximum contents observed during 

year, 239,840 acre-feet June 24 (elevation. 2,262.19 feet); minimum observed, 140,200 

acre-feet Oct. 2 (elevation, 2,238.56 feet). Maximum contents observed during period 

1905-48, 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 elevatior 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, 229,000 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 Elurr River, in NE£ 

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 1948. Maximum contents observed during year, 

439,740 acre-feet July 1 (elevation, 2,240.58 feet); minimum observed, 144,990 acrefeet Oct. 2 (elevation, 2,167.69 feet). Maximum contents observed during period 

1906-48, 443,700 acre-feet May 31, 1945 (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.

Bumping Lake.- Staff gage, lat. 46°52 I , long. 121°18', at dam on Bumping River in SW-Jsec. 23 (unsurveyed), T. 16 N., R. 12 E., at outlet of Bumping Lake, 11J miles upstream 

from American River and 19 miles west of Nile. Datum of gage is at mean sea level 

(Bureau of Reclamation bench mark). Records available, June to July 1906, April 1909 

to September 1948. Maximum contents observed during year, 37,050 acre-feet June 8 

(elevation, 3,428.51 feet); minimum observed, 6,340 acre-feet Oct. 2 (elevation, 

3,398.64 feet). Maximum contents observed during period 1906, 1909-48, 39,840 acrefeet June 21, 22, 1925 (elevation, 3,430.55 feet); minimum observed, 1,260 acre-feet 

Feb. 12-15, 1916 (elevation, 3,391.00 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 w., K. 14 E., on face of dam on Tieton River, at spillway, 2,000 feet upstream 

from Wild Cat Creek, at Rimrock, 7 5 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 1948. Maximum contents 

observed during year, 201,320 acre-feet June 11 (elevation, 2,927.31 feet); minimum 

observed, 103,020 acre-feet Oct. 2 (elevation, 2,884.10 feet). Maximum contents 

observed during period 1925-48, 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 entrance (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 331

vation and contents of reservoirs In Yakima River Basin, 

water year October 1947 to September 1948

Date

Oct. 31. .................

Calendar year 1947. ....

Sept. 30. .................

Water year 1947-48.....

Date

Calendar year 1947.....

Sept. 30. .................

Water year 1947-48.....

Date

Calendar year 1947. ....

Sept. 30. .................

Water year 1947-48.....

Keechelus Lake

Elevation 

(feet)t

2,452.64 

2,466.23 

_g > 484.25 

2,485.30

-

2,490.32 

2,492.60 

2,494.37 

2,500.83 

2,515.66 

2,515.80 

2,509.93 

2,497.41 

2,472.57

-

Contents 

(acrefeet)

35,820 

55,000 

85,fl30 

86,990

-

96,730 

101,340 

105 , 000 

118,930 

154,360 

154,710 

140,120 

111,440 

64,820

-

Change In 

contents 

during month 

(acre-feet)

+19,180 

+30,030

+1,960

-14,080

+9,740 

+4,610 

+3,660 

+13,930 

+35,430 

+350 

-14,590 

-28,680 

-46,620

+29,000

Cle Elum Lake

2,168.02 

2,184.20 

2,200.01 

2,194.22

-

2,199.23 

2,203.45 

2,207.95 

2,219.66 

2,239.10 

2,240.46 

2,222.97 

2,297.60 

2,282.55

-

146,070 

202,110 

262,220 

239,560

-

259,130 

276,010 

294,350 

343,840 

432,630 

439,160 

358,360 

252,710 

196,130

-

+56,040 

+60,110 

-22,660

-73,950

+19,570 

+16,880 

+18,340 

+49,490 

+88,790 

+6,530 

-80,800 

-105,600 

-56,580

+50,060

Tieton Reservoir

2,884.26 

2,898.12 

2,903.97 

2,890.61

-

2,899.91 

2,900.97 

2,900.57 

2,908.40 

2,925.05 

2,926.87 

2,920.46 

2,909.00 

2,886.00

-

108,310 

135,050 

147,180 

120,200

-

138,710 

140,900 

140,070 

156,710 

195,610 

200,200 

184,340 

158,030 

111,510

-

+26,740 

+12,130 

-26,980

+3,690

+18,510 

+2,190 

-830 

+16,640 

+38,900 

+4,590 

-15,860 

-26,310 

-46,520

+3 , 200

Kachess Lake

Elevation 

(feet)t

2,238.92 

2,243.13 

2,245.76 

2,245.59

-

2,247.97 

2,250.35 

2,252.45 

2,255.55 

2,259.89 

2,261.97 

2,252.98 

2,244.23 

2,244.47

-

Contents 

(acrefeet)

141,580 

158,060 

168,700 

168,010

-

177,840 

187,840 

196,810 

210,250 

229,470 

238,840 

199,090 

162,480 

163,450

-

Change in 

contents 

during month 

(acre-feet)

+16,480 

+10,640 

-690

+4,000

+9,830 

+10 , 000 

+8,970 

+13 , 440 

+19,220 

+9,370 

-39,750 

-36,610 

+970

+21,870

Bumping Lake

3,399.08 

3,416.94 

3,421.32 

3,417.34

-

3,413.12 

3,409.40 

3,407.45 

3,405.83 

3,427.85 

3,427.46 

3,424.89 

3,415.09 

3,400.88

-

6,650 

22,780 

27,840 

23,220

-

18,690 

15,040 

13,270 

11,870 

36,160 

35,630 

32,280 

20,760 

7,960

-

+16,130 

+5,060 

-4,620

+9,750

-4,530 

-3,650 

-1,770 

-1,400 

+24,290 

-530 

-3,350 

-11,520 

-12,800

+1 , 310

t Elevation is mean for day.
Kachees River near Eagl»n, Wash.

Location.- Water-stage recorder, lat. 47°15'30", Ic-ig. 121 U 11'50", in ;>c. 3, T. 20 N., 

FT 13 E. , three-quarters of a mile downstream fr>\-n Kachess La * and 2 miles n n'thwest of Easton.

Drainage area.- 64 square miles.

Records available.- October 1903 to September 1948.

Average discharge.- 45 years, 28u second-feet (ad justed for storage since October 1905).

Kxtremes.- Maximum discharge during year, £,530 second-feet May 28 (gage height, 7.12

 feet); minimum, 1.6 second-feat uct. 14, 15, 21-30.

1903-48: Maximum discharge, that of May 28, 1^48; n > flow when gates in dam are 

closed.

Remarks. - Records excellent except those below -00 sec mi-feet, which are l'-i\r, and

those for period of no gage-height record, which are poor. No diversion. Flow regulated by Kachess Lake (ses p 330). Ieuords of daily discharge not adjusted for change 

in contents of Kachess Lake.

Cooperation.- Records collected and prepared in cooperation with Bureau of Reclamation.

Kevisions (water years).- W 369: 1904, 1907-8.

Rating table, water year 1947-48 (gage height, in feet,

and discharge, In second-feet) 

(ShiftinR-c-ontrol method used Apr. 28 to May 20, Sept. 3-*0)

1.4 

1.6 

1.8 

2.0 

2.3

5.0

11

75

2.6 144

2.9 222

3.2 312

3.5 420

4.0 620

4.5 845

5.0 1,090

5.5 1,340

fi.O 1,640

7.1 2,510

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

500 

416 

346 

233 

187

172 

162 

162 

162 

132

75 

50 

23 

1.6 

1.7

2.0 

2.3 

2.4 

2.9 

2.7

2.2 

1.7 

1.9 

1.7 

1.6

1.6 

1.6 

1.7 

1.7 

1.7 

1.9

Nov.

2.0 

2.0 

2.0 

2.0 

E12

343 

346 

350 

346 

346

350 

346 

350 

350

350

346 

350 

353 

346 

350

350 

350 

346 

346 

346

346 

346

346 

346 

346

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apr! 

Hay

June 

July 

Augu 

Sept

Wat

endar year 1947

h. ..............

st... ...........

sr year 1947-48

Dec.

90 

3.2 

3.0 

109

346

346 

346 

346 

346

346

346 

346 

346 

346 

346

346 

346 

346 

346 

346

346 

346 

346 

346 

346

136

4.4 

4.4 

4.4 

4.4 

4.2

Jan.

4 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

2 

3

Feb.

2 

2 

2

2

2 

2 

2

2

2 

2 

2 

2 

2

2 

3 

3 

3 

3

3 

3 

3 

3 

3

4

4 

4 

3

Uar.

3 

3

3 

3 

3

3 

3 

3 

3

3

2

2 

3

2

2 

2 

2 

2 

2

3 

4 

3 

3 

3

3 

3 

3

4 

4 

4

Observed

Discharge in 

second feet

Haximurn

500 

353 

346

845

4 

4 

4 

309 

2,480 

1,240 

l,u4U 

1,280 

306

2,480

"Sir 

1.6 85.6 

2.0 297 

3.0 246

.8 309

2 3.0 

2 2.6 

2 2.9 

3 85. 4 

99 664 

642 884 

642 885 

274 652 

2 23.9

1.6 321

Runoff 

in 

acre feet

5,270 

17,670 

15,130

223,900

184 

147 

177 

5,140 

40,800 

52,580 

54,440 

40,060 

1,420

233,000

Apr.

4 

4 

4 

4 

3

3 

3 

3 

3

4

4 

4 

3 

4 

5

6 

6 

6 

16 

53

90 

137 

187 

230 

283

306 

309 

306 

302 

299

Hay

293 

286 

296 

319 

343

382 

436 

476 

488 

488

488 

488 

500

500 

500

500 

520 

540 

560 

620

371 

117 

99

370 

732

927 

1,060 

1,780 

2,480 

2,060 

1,550

Change in

Kachess Lake 

(acre-feet)

+16,480 

+10,540 

-690

+4.0UO

+9^330 

+10,000 

+3,970 

+13,440 

+19,220 

+9,370 

-39,750 

-36,610 

+970

+21,870

June

1,200 

1,090 

1,090 

1,110 

1,130

1,140 

1,160 

1,190 

1,220 

1,220

1,240 

1,240 

990 

833 

729

665 

665 

665 

665 

665

665 

665 

665 

665 

665

665 

665 

665 

642 

642

July

642 

642 

915 

1,040 

990

965 

940 

915 

890 

868

845 

845 

845 

868

940

940 

940 

915 

890 

890

868 

845 

890 

890 

890

890 

890 

890 

890 

890 

890

Aug.

890 

890 

890 

1,200 

1,280

868 

845 

800 

778 

778

778 

778 

778 

800 

800

800 

732 

600 

540 

520

500 

472 

440 

440 

332

27-7 

274 

274 

274 

277 

293

Sept.

306 

306 

20 

9 

9

9 

9 

6 

2 

a2

a2 

a2 

a2 

a2 

a2

a2 

a2 

a2 

a2 

a2

a2 

a2 

a2 

a2 

a2

a2

2 

2 

2 

2

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-feet

21,750 

28,310 

14,440

227,900

10,010 

10,150 

9,150 

18,580 

60,020 

61,950 

14,690 

3,450 

2,390

254,900

Discharge in 

second-feet

Per

Mean square 

Dile

354 5.53 

476 7.44 

235 3.67

315 4.92

163 2.55 

176 2.75 

149 2.33 

312 4.fl8 

976 15.2 

1,041 16.3 

239 3.73 

56.1 .877 

 40.2 .628

351 5.48

Runoff

inches

6.37 

8.29 

4.23

66.76

2.93 

2.97 

2.68 

5.44 

17.58 

18.15 

4.30 

1.01 

.70

74.65

a No gage-height record; discharge interpolated.

Note.- Discharge computed from staff-gage readings Dec. 27 to Jan. 22, Feb. 10 to Mar 15, Sept. 27-
YAKIMA RIVER BASIN

Cle Elum River near Roslyn, Wash.

Location.- Water-stage recorder, lat. 47°14'00", long. 121°03'30", in SW^ sec. 11, T 20

 N., H. 14 E., 1,000 feet downstream from dam at Cle Elum Lake and 4 miles northwest 01

Roslyn.

Drainage area.- 202 square miles. 

Records available.- October 1903 to September 1948.

Average discharge.- 45 years, 891 second-feet (adjusted for storage since January 1906). 

Extremes.- Maximum discharge during year, 11,000 second-feet May 28 (gage height, 14.00

 feet) minimum not determined, occurred during period of no gage-height record.

1903-48: Maximum discharge, 18,700 second-feet Nov. 15, 1906 (gage height, 14.05 

feet); no flow at times when gates in dam are closed. 

Remarks.- Records excellent except those between 25 and 250 second-feet, which are good,

 and those below 25 second-feet, which are poor. No diversion above station. Flow 

partly regulated by Cle Elum Lake (see p. 330). Figures of daily discharge not adjusted for change in contents of Cle Elum Lake.

Cooperation.- Records collected and prepared in cooperation with Bureau ol Reclamation.

Revisions (water years).- W -362: Drainage area. W 369: 1906-8.

Rating tables, water year 1947-48 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Apr. 20-22, 26)

4.6

5.0

61

126

261

Oct. 1 to May 28 May 28 to Sept. 3O

5.4 420

600

830

1,080

1,360

1,720

8.0 2,120

10.0 4,210

12.0 6,910

14.0 10,100

4.1 

4.3 

4.5 

4.7 

5.0

107

163

265

5.3 

5.6 

6.0 

6.5 

7.0

391

535 745"

1,030

1,360

8.0 2,190

10.0 4,430

12.0 7,390

13.2 9,490

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4

5

6 

7 

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.

420 

428 

412

416 

416

416 

416 

420 

424 

348

227 

202 

142 

58 

31

30 

25 

31

31 

28

30 

33 

33 

34 

34

34 

34 

35 

35 

35 

35

Nov.

35 

35 

35 

34 

34

34 

34 

34 

34 

34

35 

35

35 

35 

35

35 

35 

36 

36 

36

36 

37 

37 

23 

11

190 

332 

532 

722 

728

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri 

Hay.

June 

July 

Augu 

Sept

Wat

andar year 1947

Bt... ...........

3T year 1947-48

Dec.

915 

1,080 

1,080 

1,080 

1,080

1,040 

1,040 

1,040 

1,040 

1,040

1,040 

1,010 

1,010 

1,010 

1,010

1,010 

1,010 

1,010 

1,010 

980

980 

980 

980 

980 

980

950 

950 

950 

665 

523 

265

Jan.

36 

36 

36 

36 

36

36 

36 

36 

36

36

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36

36 

36 

36 

36

Feb.

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36

Mar.

37 

37 

37 

37 

37

37 

37 

37 

37 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39 

39

Observed

Discharge in 

second-feet

Maximum

428 

728 

1,080

4,210

36 

36 

39 

42 

9,490 

6,380? 

3,2002 

2,670 

1,710

9,490

Minimum

25 

11 

265

11

36 

36 

37 

2.3 

2.5 

,060 

,100 

679 

37

2.3

Mean

171 

111 

959

1,146

36.0 

36.0 

38.4 

33.5 

1,841 

3,833 

2,366 

2,113 

1,128

1,059

Runoff 

in 

acre-feet

10,500 

6,630 

58,980

829,500

2,210 

2,070 

2,360 

1,990 

113,200 

228,100 

145,500 

129,900 

67,110

768,600

Apr.

39 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

40 

40

41 

42 

40

39 

31

31 

39 

41 

42 

41

20 

a3.0 

a2.3 

a2.4 

a2.5

May

a2.5 

a2.6 

a2.7 

a2.8 

a2.9

a2.9 

a3.0 

a50 

202 

356

474 

580 

722 

830 

920

1,010 

1,130 

1,240 1,420' 

1,640

1,140 

296 

315 

844 

3,400

5,480 

5,980 

9,090 

9,490 

5,800 

4,650

Change In

contents In 

Cle Elum 

Lake 

(acre-feet)

+56,040 

H-60,110 

-22,660

-73,950

H-19,570 

H-16,880 

H-18,340 

H-49,490 

+80,790 

+6,530 

-80,800 

-105,600 

-56,580

+50,060

June

4,380 

4,290 

4,510 

4,730 

5,290

6,140 

6,320 

6,360 

6,380 

5,880

5,440 

5,390 

4,440 

3,600 

2,820

2,610 

3,150 

3,260 

3,230 

2,950

2,840 

2,670 

2,770 

2,670 

2,240

2,060 

2,060 

2,060 

2,100 

2,140

July

2,140 

2,10O 

3,090 

3,200 

3,200

2,560 

2,140 

2,140 

2,140 

2,190

2,190 

2,190 

2,190 

2,190 

2,190

2,240 

2,190 

2,190 

2,190 

2,190

2,240 

2,240 

2,370 

2,420 

2,420

2,420 

2,470 

2,470 

2,470 

2,470 

2,520

Aug.

2,570 

2,470 

1,980 

1,370 

679

1,750 

1,750 

1,750 

1,750 

1,830

1,830 

1,920 

2,420, 

2,670 

2,670

2,670 

2,370 

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 

1,920

Sept.

1,710 

1,710 

1,670 

1,590 

1,590

1,590 

1,590 

1,550 

1,550 

1,550

1,550 

1,510 

1,510 

1,510 

1,510

1,430 

1,360 

1,290 

1,180 

1,000

800 

617 

540 

530 

525

525 

221 

48 

42 

37

Adjusted for change In 

reservoir contents

Runoff 

in 

acre-feet

66,540 

66,740 

36,320

755,600

21,780 

18,950 

20,700 

51,480 

202,000 

234,600 

64,700 

24,300 

10,530

818,600

Discharge in 

second-feet

Mean

1,082 

1,122 

591

1,044

354 

329 

337 

865 

3,285 

3,943 

1,052 

395 

177

1,128

Per 

square 

mile

5.36 

5.55 

2.93

5.17

1.75 

1.63 

1.67 

4.28 

16.3 

19.5 

5.21 

1.96 

.876

5.58

Runoff

inches

6.18 

6.19 

3.37

70.15

2.02 

1.76 

1.92 

4.78 

18.75 

21.78 

6.01 

2.26 

.98

76.00

a No gage-height record; discharge computed on basis of 2 discharge measurements.
334 YAKIMA RIVER BASIN

Teanaway River near Cle Elum, Wash.

Location.- Water-stage recorder, lat. 47°12', long. 120°47', in SWtr sec. 2f, T. 20 N., R. 

16 K., 4 miles upstream from mouth and 8 miles east of Cle Elum.

Drainage area.- 200 square miles.

Records available - October 1946 to September 1948. April 1909 to September 1914, chain 

gage at site 3-| miles downstream.

Extremes.- Maximum discharge during year, 4,170 second-feet May 28 (gage height, 35.57 

feet, from high-water mark); minimum, 18 second-feet Oct. 1, 2 (gage height, 31.39 

feet).

1909-14, 1946-48: Maximum discharge, that of May 28, 1948; minimum observed, 1 

second-foot Aug. 6, 1914 (gage height, 2.17 feet, site and datum then in use).

Remarks - Records good except 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 1947 to Septemberl948

Day

1

2

3

4

5

6

7

8

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

34

107

76

62

54

51

50

56

98

109

100

88

80

80

170

192

279

662

505

382

329

292

265

253

262

256

243

228

225

246

Nov.

382

369

325

292

256

231

243

432

390

344

336

314

299

275

262

231

240

306

262

257

211

197

178

173

186

510

616

508

427

371

-

Dec

341

*312

282

260

233

217

211

193

185

171

174

168

182

211

208

208

208

205

193

182

176

166

158

166

190

199

205

205

193

182

179

Jan

185

190

171

161

151

146

153

139

121

116

112

109

107

107

106

105

105

105

105

107

110

168

208

260

240

208

168

*115

100

105

110

Month

October . .... .............. .

November . . . .... ..... ... .

December ........... ........

Calendar year 1947 ......

January ..................... .

February ....... .... .... ...

March . . . ..... .... .... ...

April ......... ..... ... ....

May.. .................... ...

June ......... ........... ....

July ..................... ....

August .......... ...... ......

September ............ ........

Water year 1947-48 .........

Feb.

115

120

110

104

94

85

86

90

95

92

88

85

84

90

95

100

*110

137

135

132

137

163

163

153

166

253

289

267

243

_

-

Second

foot-days

5.8E2

9,403

6,363

121,128.8

4,393

3,881

7,584

22,377

50,124

30,012

3,683

1,130

84S

145,648

Mar.

227

211

196

190

182

179

174

166

158

153

146

144

141

141

144

151

156

161

156

146

181

412

367

324

320

301

305

358

557

574

563

Maximum

662

616

341

1,550

260

289

574

1,530

3,340

1,830

258

58

47

3,340

Apr

546

535

518

471

417

380

354

345

362

380

408

380

367

408

595

1,240

1,330

1,160

1,250

1,320

1.530

1,480

1,290

1,130

978

795

698

634

568

518

-

May

502

535

725

1,020

962

1,380

1,750

1,360

1,210

1,100

1,070

1,090

1,150

1,060

1,030

1,150

1,220

1,200

1,230

2,240

2,320

",490

2,160

2,250

2,310

2,4UO

g2,710

g3,100

g3,340

g2,210

El, 850

Minimum

18

173

158

3.9

100

84

141

345

502

332

25

28

22

18

June

1,830

1,830

1,830

1,670

1,520

1,520

1,520

1,520

1,370

1,240

1,370

1,240

1,110

885

709

709

1,110

885

792

792

709

572

516

466

466

419

374

374

332

332

-

Mean

189

313

205

332

142

134

245

746

1,617

1,000

119

36. 5

28.2

398

July Aug.

258 28

258 32

192 28

192 28

163 28

224

192

192

192

163

163

163

135

135

135

110

110

110

88

88

69

69

42

34

a33

a32

a30

a30

a28

28

25

Per

square 

mile

0.945

1.56

1.02

1.66

.710

.670

1.22

3.73

8.08

5.00

.595

.182

.141

1.99

30

31

30

33

32

33

32

30

28

45

58

49

47

44

41

41

47

46

43

41

38

34

35

33

32

33

Sept.

32

30

28

28

30

30

30

30

30

25

23

23

22

22

22

22

23

23

23

23

23

24

25

25

26

30

47

46

42

39

~

Runoff

Inches Acre-feet

1.09 11,610

1.75 18,650

1.18 12,620

22.52 240,300

.82 8,710

.72 7,700

1.41 15,040

4.16 44,380

9.32 99,420

5.58 59,530

.68 7,310

.21 2,240

.16 1,680

27.08 288,900

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Chiwawa River near Plain.

g Computed from graph based on gage readings, high-water mark, and records for Chiwawa River 

near Plain.

Note.- Stage-discharge relation affected by ice Jan. 10-21, Jan. 28 to Feb. 17. Discharge computed from once-daily staff-gage readings June 1 to July 24.
YAKIMA RIVER BASIN 335

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. 

ib N -. R- 16 E., half a mile downstream from Wapatox power canal, three-quarters of a 

mile downstream from Tieton River, and 3^ miles northwest of Naches. Datum of gage is 

1,550 feet above mean sea level.

Drainage area.- 943 square miles.

Heepras available- August to October 1905, November 1908 to October 1912, ard May 1915 to 

September 1948 in reports of Geological Survey. September 1905 and October 1908 to September 1912 (mean monthly discharge) in State Water-Supply Bulletin 5

Average discharge.- 36 years (1908-12, 1916-48), 1,618 second-feet (adjusted for diversions 

t>y seiah valley and Tieton Canals since 1909, city of Yakima at Oak Flat since 1936, and 

by Wapatox Canal since 1936, and for change in contents in Bumping Lake since November 

1910, and in Tieton Reservoir since October 1924).

Extremes.- Maximum discharge during year, 12,600 second-feet May 28 (gage height, 17 58 

reeDT minimum, 27 second-feet Oct. 13, 14, 15 (gage height, 10.00 feet).

1905, 1908-12, 1915-48: 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 on many days during winter of 1943-44, result of regulation and diversion.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

gopar and those for periods of ice effect, which are fair. Flow regulated by Bumping 

Lake and Tieton Reservoir (see p. 330), by diversion at Oak Flat for supply of city of 

Yakima, and by diversion of Selah Valley, Tieton, and Wapatox Canals. Small unmeasured 

diversions for irrigation above station. Figures of daily discharge not a1justed.

Cooperation - Records collected and prepared in cooperation with Bureau of Reclamation 

information concerning municipal diversion at Oak Flat, which is very small in relation 

to flow past station, furnished by water superintendent of city of Yakima

Revisions.- W 832: Drainage area.

Discharge, in second-fsst, water year October 1947 to September 1948

Day

1 

2 

S 

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.

60 

43 

167 

116 

36

30 

48 

45 

53 

90

67 

43 

30 

27 

30

206 

323 

665 

1,820 

1,790

1,160 

682 

480 

347 

257

245 

230 

219 

201 

159 

223

Nov.

564 

586 

494 

430 

347

287 

328 

843 

742 

593

833 

759 

690 

601 

556

494 

507 

950 

1,130 

1,120

1,080 

1,030 

990 

980 

970

1,240 

1,610 

1,520 

1,410 

1,330

Month

Octo 

Nove 

Dece

Cal

Janu 

Frbr 

Marc 

Apri

Uav

June 

July 

Augu 

Sept

Wat

mber ............

endar year 1947

h... ............

St.... ..........

ember. ..........

er year 1947-48

Dec.

1,290 

1,230 

* 1,200 

1,140 

1,090

1,090 

1,140 

1,120 

1,080 

1,060

1,070 

1,030 

1,060 

1,320 

1,660

1,670 

1,7OO 

1,790 

1,990 

1,960

1,930 

1,560 

980 

1,040 

1,070

918 

586 

609 

617 

521 

323

Jan.

328 

413 

358 

328 

274

333 

328 

287 

248 

300

249 

257 

219 

174 

160

165 

170 

175 

190 

210

300 

340 

347 

*424 

384

300 

200 

170 

220 

350 

280

Feb.

250 

240 

180 

220 

180

120

loo

ISO 

280 

580

600 

750 

820 

832 

850

720 

557 

673 

*570 

520

520 

a582 

645 

597

570

841 

860 

769 

728

Mar.

805 

930 

630 

645 

617

557 

3560 

3870 

1,180 

860

736 

514 

502 

490 

450

381 

352 

347 

324 

?0?

310 

462 

407 

357 

376

333 

347 

423 

584 

704 

696

Observed

Discharge in 

second-feet

Maximum

1,820 

1,610 

1,990

5,610

424 

860 

1,180 

2,210 

11,800 

9,850 

2,860 

720 

900

11,800

Minimum

27 

287 

323

27

160 

100 

302 

302 

1,190 

2,720 

570 

272 

357

27

Mean

51S 

834 

1,189

1,131

274 

527 

552 

1,060 

4,055 

6,210 

1,302 

447 

597

1,444

Runoff

acrefeet

19,640 

49,610 

73,080

818,700

16,820 

30,300 

33,920 

63,040 

249,300 

369,500 

80,030 

27,500 

35,510

1,048,000

Apr.

652 

652 

659 

631 

564

520 

478 

423 

324 

324

328

310 

302 

362

66fi

1,340 

1,640 

1,640 

1,700 

1,880

2,210 

2,210 

2,140 

1,950 

1,760

1,520 

1,340 

1,190 

1,050 

1,020

In contents in

Bumping 

Lake and 

Tieton 

Reservoirs 

acre-feet)

+42,870 

+17,190 

-31,600

+18,440

+13,980 

-1,460 

-2,600 

+15,240 

+63,190 

+4,060 

-19,210 

-37,830 

-59,320

+4,510

May

1,190 

1,420 

1,700 

1,950 

2,020

2,210 

2,560 

2,210 

2,080 

1,880

1,820 

1,880 

2,080 

2,020 

1,950

2,020 

2,280 

2,560 

2,630 

3,410

4,410 

5,080 

E.030 

5,350 

7,090

8,690 

10,100 

11,800 

10,600 

8,420 

7,250

June

6,890 

6,980 

8,190 

8,630 

8,270

8,470 

9,000 

9,420 

9,690 

9,160

9,850 

9,110 

7,380 

6,490 

5,500

5,950

6,180 

5,430 

4,910 

4,850

4,850 

4,420 

C,950 

3,680 

3,520

3,340 

3,260 

3,020 

2,720 

3,180

by Tieton, 

Selah Valley, and 

Wapatox 

Canals anc 

city of 

Yakima 

(acre-feet)

34,440 

33,290 

33,750

501,200

28,910 

26,800 

29, §50 

38,420 

47,920 

49,820 

59,630 

60,210 

57,150

500,300

July

,860 

,420 

,350 

,490 

,490

,420 

2,080 

1,640 

1,160 

890

841 

990 

805 

1,270 

1,240

1,200 

1,180 

1,320

1,240 

1,060

930 

900 

841 

814 

787

769 

760 

769 

680 

570 

584

Aug.

584 

544 

520 

720 

610

557 

467 

462 

456 

462

450 

428 

423 

412 

473

456 

445 

439 

428 

423

434 

462 

445 

342 

276

272 

319 

392 

392 

386 

386

Sept.

386 

371 

357 

423

533

538 

532 

564 

590 

584

564 

584 

631 

624 

610

617 

617 

610 

603 

603

597 

610 

659 

673 

680

752 

832 

850 

900 

402

Adjusted for change in reservoir contents and diversions

Runoff 

in 

acrefeet

96,950 

100,100 

75,230

1,338,OOO

59,710 

55,640 

61,270 

116,700 

360,400 

423,400 

120,400 

49,880 

33,340

1,553,000

Cis charge in 

second-feet

Per 

Mean square 

mile

1,577 1.67 

1,68? 1.78 

1,223 1.30

1,S49 1.96

971 1.03 

967 1.03 

996 1.06 

1,961 2.08 

5,861 6.22 

7,115 7.55 

1,958 2.08 

811 .86C 

56C .594

2,139 2.27

Runcff

inches

1.93 

1.99 

1.50

26.62

1.19 

1.11 

1.22 

2.32 

7.17 

8.42 

2.39 

.99 

.66

30.89

 Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of gen 

streams. 

Note.- Stage-discharge relation affected by ice Jan. 15-22,

sral Information and records for nearby 

Jan. 26 to Feb. 13.

939922 O- 51 - 23
336 YAKIMA RIVER BASIN 

Bumping River near Nile, Wash.

Location.- Water-stage recorder, lat. 46°52', long. 121°18', a quarter of a mile downstream from spillway of Bumping Lake Dam and 19 miles west of Mle, Yakima County.

Drainage area.- 68 square miles.

Records available.- June to July 1906, April 1909 to September 1948.

Average discharge.- 

November 191U).

years (1909-48), 283 second-feet (adjusted for storage since

Extremen,.- Maximum discharge during year, 1,860 second-feet June 8 (gage height, 5.35 

feet); minimum, 14 second-feet Oct. 27, 29, 30.

1906, 1909-48: 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 good. No diversion. Plow regulated by Bumping Lake (see p. 330). 

Figures of daily discharge not adjusted for change in contents of Bumping Lake.

Cooperation. - Records collected and prepared in cooperation with Bureau of Reclamation.

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second(-feet)

1.2 14 2.3 177 4.3 1,120 

1.4 28 2.6 264 4.8 1,460 

1.6 47 3.0 417 5.3 1,820 

1.8 73 3.4 605 

2.0 108 3.8 820

Discharge in second-feet, water year October 1947 to September 1S48

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

125 

129 

131 

134 

134

134 

131 

131 

134 

110

78 

60 

58 

58 

159

261 

271

316 

309

149 

22 

20

la

1C

15

14 

15 

14 

12 

18

Nov.

19 

18 

18 

18 

18

17 

19 

19 

18 

139

274 

288 

295 

291 

291

291 

291 

291 

288 

288

288 

288 

295 

298 

298

298 

298 

298 

298 

298

Month

Octol 

Novej 

Decei

Cal

Janu 

Febri 

Hard 

Apri

June 

July 

Augu 

Septe

Bate

sndar year 1947 

iry

>r year i 947-48

Dec.

298 

298 

295 

291 

295

298 

295 

291 

295 

302

298 

298 

302 

298 

298

295 

298 

298 

298 

298

298 

295 

298 

298 

298

258 

248 

233 

236 

236 

236

Jan.

236 

239 

236 

236 

233

233 

236 

236 

233 

233

233 

233 

233 

233 

233

230 

227 

227 

224 

224

224 

221 

221 

218 

218

218 

216 

216 

213 

213 

213

Feb.

213 

210 

210 

210

237

207 

204 

204 

204 

204

201

199 

199 

199 

199

199 

199 

199 

196 

196

199 

201 

199 

196

199

201 

199 

199 

199

Mar.

199 

199 

199 

196 

196

196 

193 

193 

193 

190

188 

188

185 

185 

185

185 

182 

180 

180 

177

177 

177 

177 

177 

174

172 

172 

172 

170 

170 

170

Observed

Discharge in 

second-feet

Maximum

316 

298 

302

1,140

239 

213 

199 

190 

1,300 

1,810 

760 

313 

302

1,810

Minimum

14 

17 

233

5.0

213 

196 

170 

121 

188 

760 

264 

288 

274

14

Mean

112 

205 

286

300

227 

202 

184 

165 

397 

1,223 

372 

299 

291

329

Runoff 

in 

acre-feet

6,890 

12,190 

17,600

210,350

13,960 

11,610 

11,300 

9,800 

24,430 

72,760 

22,860 

18,400 

17,300

239,100

Apr.

167 

167 

167 

164 

164

162 

162 

162 

160 

160

157 

154 

152 

152 

152

154 

157 

160 

162 

164

170 

174 

177 

180 

185

182 

182 

182 

121 

190

May

188 

188 

196 

216 

274

295 

302 

305 

309 

313

313 

316 

316 

320 

320

324 

328 

329 

334 

343

359 

376 

393 

372 

301

318 

303 

397 

1,130 

1,300 

1,240

Change in 

contents in 

Bumping Lake 

(acre-feet)

+16,130 

+5,060 

-4,620

+9,750

-4,530 

-3,650 

-1,770 

-1,400 

+24,290 

-530 

-3,350 

-11,520 

-12,800

+1,310

June

1,300 

1,410 

1,570 

1,560 

1,540

1,620 

1,750 

1,810 

1,800 

1,730

1,760 

1,600 

1,380 

1,230 

1,120

1,140 

1,150 

1,060

1,000 

1,000

982 

880 

820 

790 

760

760 

760 

760 

820 

820

July

760 

640 

575 

531 

470

498 

484 

430 

388 

371

363 

343 

331 

316 

302

295 

295 

331 

291 

281

305 

281 

264 

271 

288

298 

305 

305 

305 

305 

305

Aug.

305 

305 

305 

313 

309

305 

298 

302 

302 

302

298 

298 

298 

298 

302

295 

291 

288 

291 

291

291 

291 

291 

298 

305

2"-j 

295 

298 

302 

309 

305

Sept.

302

295 

295 

291 

288

288 

295 

298 

295 

291

295 

298 

295 

295 

295

298 

291 

284 

288 

291

291 

291 

295 

291 

284

284 

284 

274 

284 

278

Adjusted for change in 

reservoir contents

Runoff 

in 

acre- feet

23.02C 17,2C r 

12,98C

220, 10C

9,43C 

7.96C 

9,53C 

8.40C 

48.72C 

72.23C 

19.51C 

6,88C 

4,50C

240 ,40

Discharge in 

second-feet

Per 

Mean square 

mile

374 T.5T 

290 4.26 

211 3.10

3C4 4.47

153 2.25 

138 2.03 

1E5 2.28 

141 2.07 

7S2 11.6 

1,214 17.9 

317 4.66 

112 1.65 

75.6 1.11

D 351 4.87

Runoff

inches

6.35 

4.76 

3.58

60.68

2.60 

2.19 

2.63 

2.32 

13.43 

19.92 

5.38 

1.90 

1.24

66.30
YAKIMA RIVER BASIN 33

American River near Nile, Wash.

Location.- Water-stage recorder, lat. 46°58'30", long. 121°10'10", in SW£ sec. 12, T. 17 

N., K. 13 E., 300 feet upstream from Bumping Lake road crossing, three-cuarters of a 

mile upstream from mouth, and 16 ,iiji._'L northwest of Nile. Datum of gage is 2,700.0 

feet above mean sea level (Washington £tate Highway Department bench mark).

Drainage area.- 79 square miles.

Records available.- April 1909 to September 1911, July 1913 to September 1P15 (fragmentary), October 1939 to September 1948.

Average discharge.- 11 years (1909-11, 1939-48), 228 second-feet.

Extremes.- Maximum discharge during year, 2,600 second-feet May 27 (gage height, 76.6 

feet, from high-water mark in well), from rating curve extended above 1,400 secondfeet; minimum, 49 second-feet ocl. 1, 2.

1909-11, 1913-15, 1939-48: Maximum discharge, that of May 27, 1948; minimum, 20 

second-feet Nov. 22, 1940.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversion or regulation.

Cooperation.- Records collected and prepared in cooperation with Bureau of Reclamation.

Kevlslons (water years).- W 982: 1940-42.

Hating tables, water year 1947-48, except periods of ice effe 

(gage height, In feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-19)

Oct. 1 to Hay 27 Hay 27 to Sept. 30

72.1 45 73.1 252 75.0 1,200 72.0 51 73.1 309 75.0 1,380 

72.3 71 73.4 349 75.7 1,740 72.2 77 73.4 437 75.7 1,88O 

72.5 103 73.7 466 76.5 2,380 72.4 111 73.7 585 76.4 2,440 

72.7 145 74.0 601 72.6 156 74.0 750 

72.9 195 74.5 871 72.8 210 74.5 1,040

Discharge, in second-feet, water year October 1947 to Septemberl948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

50 

60 

119 

93 

86

78 

72 

74 

91 

113

hill

hl!3 

h93 

91 

128

283 

293

382 

1,100 

774

527 

409 

346 

305 

274

274 

268 

274 

258 

252 

283

Nov.

417 

386 

346 

315

239

264 

277 

353

309 

289

274 

255

249 

232 

223

206 

203 

203 

190 

179

169 

162 

157 

155 

162

217 

238 

226 

220

215

Dec.

215 

203 

198 

*190 

182

169 

167 

159 

155 

145

143 

138 

141 

145 

134

134

a!34 

a!34 

a!34 

a!34

a!34 

134 

134 

167 

177

169 

177 

201 

195 

187 

185

Jan.

185 

195 

190 

185 

172

169 

152 

140 

130 

110

100 

96 

95 

*95 

95

95 

95 

95 

96 

100

110 

120 

130 

*136 

130

125 

122

120 

118 

115 

113

Feb

111 

108 

104 

102 

1OO

96 

93 

91 

90 

88

88 

88 

88 

89 

89

86 

100 

113 

103 

100

96 

117 

103 

*103 

107

145 

152

138 

136

Mnn+h SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1947 ......

7,674

7,380 

5,014

. . 92,115

ember .....................

3,929 

3,023 

2,933 

5,905 

?4,897 

50,409 

8,515 

2,800 

1,770

ter year 1947-48 .......... 104,249

Mar.

130 

121 

113 

109 

111

103 

101 

117 

96 

94

93 

91

86 

83 

83

82 

80 

80 

77 

76

80 

94 

86 

80 

80

80 

80 

86 

109 

117 

115

Maximum

1 , 100 

417 

215

1 , 100

195 

152 

130 

371 

2,420 

1,610 

602 

126 

70

2,420

Apr.

115

115 

113 

107 

105

98 

94 

91

89 

89 

88 

93 

119

190 

240 

246 

268

299

342 

364 

371

a360 

a 340

315 

293 

277 

258 

240

May

1 

1 

1 

1

1 

f2 

f2 

1 

1 

1

Minimum

50 

155 

134

47

95 

86 

76 

88 

220 

575 

122 

71 

52

50

Peak discharge (base, 700 sec. -ft.).- Oct. 19 (2 p.m.) 1.460

226 

220 

240 

261 

268

368 

522 

488 

437 

413

398 

421 

458 

437 

425

454

506 

524 

536 

657

888 

120 

150 

240

183

710 

330 

420

830 

330 

140

June

1,180 

1,260 

1,430 

,430 

,360

,430 

,540 

,610 

,550 

,490

1,610 

1,380 

1,050 

951 

843

838 

B36 

732 

702 

750

740 

662 

624 

602 

580

575

596 

673 

690 

695

Mean

248 

246 

162

252

127 

104 

S4.6 

197 

803 

1,014 

275 

90.3 

59.0

285

July

602 

490 

442 

414 

379

388 

375 

345 

309 

309

313 

284 

277 

270 

270

250

250 

280 

250 

228

219 

202 

193 

177 

164

154 

151 

146 

134 

128 

122

Per 

square 

mile

3.14 

3.11 

2.05

3.19

1.61 

1.32 

1.20 

2.49 

10.2 

12.8 

3.48 

1.14 

.747

3.61

Aug

126 

119 

115 

109 

109

107 

102 

97 

95

93

90 

90 

88 

88 

97

95 

90 

85 

85

82

79 

80 

79 

79 

76

74 

74

74 

73 

71

Sept.

69 

69 

67 

66 

64

62 

61 

59 

58 

57

56 

55 

53 

53 

53

55 

55

53 

53 

53

52 

53

56 

55 

53

59 

67 

67 

70 

67

Runoff

Inches

3.61

3.47 

2.36

43.35

1.85 

1.42 

1.38 

2.78 

11.72 

14.32 

4.01 

1.32 

.83

49.07

Acre-feet

15,220 

14,640 

9,950

182,700

7,790 

6,000 

5,820 

11,710 

49,380 

60,320 

16,890 

5,550 

3,510

206,800

. . sec. -ft.; Hay 27 (about 10 p.m.)

2,6OO sec.-ft.; June 11 (6 p.m.) 1,660 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge interpolated, or computed on basis of records for nearby 

streams.

f Computed on basis of partly estimated gage-height record and high-water mark in well.

h Computed from staff-gage readings.

Note.- Stage-discharge relation affected by ice Jan. 2, 8-25, 27-30, Feb. 2-4, 7-9, 11-13.
338 YAKIMA RIVER BASIN 

Tieton River at Tieton Dam, near Naches, Wash.

Location.- Water-stage recorder, lat. 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. 

Records available.- August 1908 to September 1914 (fragmentary), October 1918 to March

 1919, and flprll 1925 to September 1948 In reports of Geological Survey. Seitember

l.-Jd to December 191j and July 1914 to September 1920 In State Water-Supply Bulletin 5.

Average discharge - 29 years (1908-12, 1918-20, 1925-48), 462 second-feet (adjusted for 

storage since October 1925).

Extremes.- Maximum discharge during year, 2,930 second-feet June 11 (gage height, 6.53 

reet); minimum observed, 4.0 second-feet Nov. 8 (gage height, 1.30 feet).

1908-14, 1918-19, 1925-48: 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 below 50 second-feet, which are fair. No diversion. 

Flow regulated by Tieton Reservoir (see p.330). Figures of daily discharge not adjusted for change in reservoir contents.

Cooperation.- Observer's services and 5 discharge measurements furnished by Bureau of 

Reclamation.

Revisions (water years).- W 369: 1909-10.

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Dec. 31 Jan. 1 to Sept. 30

1.3 4.0 2.6 131 4.4 97U 4.0 635 5.6 2,000 

1.5 8.0 2.9 208 4.8 1,310 4.4 965 6.0 2,400 

1.7 17.5 3.2 304 5.1 1,600 4.8 1,280 6.4 2,800 

2.0 42 3.6 469 5.2 1,640 

2 - 3 79 4 -° 685 Note.- Same as preceding 

table below 4.0 feet.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

273 

264 

196 

154

178 

238 

238 

238 

244

238 

232 

229 

229 

185

.4 

.4 

.6 

.4 

.2

.0 

.2 

.0 

.0 

.9

.6 

.6 

.6 

.6 

.9 

.8

Nov.

.6 

.8 

.8 

.6 

.8

.8 

.9 

.3 

.9 

.8

.8 

.8 

.8 

.8 

.6

4.6 

203 

552 

6S5 

685

685 

685 

885 

685 

685

685 

685 

685 

685 

685

Month

Octo 

Nove 

Dece

Cal

Janu 

Febr 

Hare 

Apri

Uav

June 

July 

Augu 

Sept

Wat

endar year 1947 

ary

er year 1947-48

Dec.

685 

685 

685 

685

6S5

685 

685 

685 

685 

685

685 

685 

685 

1,020 

1,260

1,260 

1,260 

1,400 

1,550 

1,550

1,550 

1,070 

685 

685 

685

451 

270 

270 

270 

71 

4.8

Jan.

4. 

4. 

4. 

4. 

4.

4. 

4. 

4. 

4. 

4.

4. 

4. 

4. 

4. 

4.

4. 

4. 

4. 

4. 

4.

4. 

4. 

4. 

4. 

4.

4. 

5. 

5.

4. 

4. 

4.

8 

6 

8 

6 

8

8

a

8 

8 

8

8 

8 

8 

8 

8

8

a

8 

8 

8

8 

8 

9 

9 

9

9 

2 

0 

9 

8 

9

Feb.

4.8 

4.9 

4.9 

4.9 

4.9

4.8 

4.8 

4.8 

234 

415

420 

578 

679 

679 

679

546 

394 

341 

304 

304

304 

304 

308 

308 

304

311 

315 

315 

315

Mar.

311 

311 

311 

311 

311

311 

311 

699 

878 

698

516 

381 

381 

381 

307

248 

244 

241 

241 

241

238 

238 

241 

241 

241

241 

241 

241 

211 

235 

235

Observed

Discharge in 

second-feet

Maximum

319

695

L.sro

1,700

5.2 

679 

878 

314 

2,040 

2,790 

1,640 

890 

1,160

2,790

"mSm"

4.4 

4.3 

4.8

4.2

4.6 

4.8 

211 

108 

113 

897 

345 

655 

580

4.3

Mean

114 

302 

781

528

4.83 

290 

330 

160 

619 

1,846 

935 

807 

1,063

603

Runoff 

in 

acre-feet

7.00C 

17.95C 

48.03C

382, 40C

297 

16,65C 

20,30C 

9.52C 

38.03C 

109, 80C 

57.46C 

49.63C 

63,26C

437, 90C

Apr.

235 

235 

235 

232 

232

232 

235 

164 

111 

111

111 

109 

108 

191 

301

201 

115 

115 

115 

111

109 

109 

108 

108 

103

108 

109 

111 

117 

314

May

518 

869 

1,040 

1,120 

1,040

689 

258 

113 

121 

121

145 

159 

154 

152 

152

154 

291 

428 

451 

439

348 

238 

248 

657 

1,690

2,04C 

1.23C 

1,07C 

1,08C 

1.09C 

1,07C

Change in

in Tieton 

Reservoir

(acre-feet)

+26,740 

+12,130 

-26,980

+8,690

+18,510 

+2,190 

-830 

+16,640 

+38,900 

+4,590 

-15,860 

-26,310 

-46,520

+3,200

June

1,060 

1,280 

1,980 

2,270 

2,250

2,300 

2,430 

2,510 

2,620 

2,570

2,790 

2,640 

2,240 

1,990 

1,800

2,040 

2,120 

1,890 

1,730 

1,690

1,740 

1,600 

1,460 

1,370 

1,320

1,280 

1,280 

897 

905 

1,320 

_

July

1,200 

965 

1,320 

1,550 

1,640

1,420 

1,080 

730 

446 

345

402 

488 

679 

1,040 

1,040

1,040 

1,040 

1,040 

1,040 

928

890 

890 

890 

890 

890

890 

890 

890 

806 

778 

834

AlR.

827 

820 

820 

820 

820

820 

820 

820 

820 

820

820 

813 

806 

813 

813

813 

820 

820 

820 

820

869 

890 

806 

698 

655

704 

757 

820 

820 

820 

820

Sept.

313 

820 

820 

942 

1,040

1,040 

1,040 

1,040 

1,000 

1,080

1,080 

1,120 

1,160 

1,160 

1,160

1,160 

1,160 

1,160 

1,160 

1,160

1,160 

1,160 

1,160 

1,160 

1,120

1,120 

1,120 

1,120 

1,000 

580

Adjusted for change in 

reservoir contents

Runoff 

in 

acre-feet

33,740 

30,080 

21,050

391,100

18,810 

18,840 

19,470 

26,160 

76,930 

114,400 

41,600 

23,320 

16,740

441,100

Discharge in 

second-feet

Mean

549 

506 

342

540

306 

328 

317 

440 

1,251 

1,923 

677 

379 

281

608

Per 

square 

mile

2.94 

2.71 

1.83

2.89

1.64 

1.7E 

1.7C 

2. 35 

6.69 

10.3 

3.62 

2.03 

1.5C

3. 25

Runoff

inches

3.38 

3.02 

2.11

39.22

1.89 

1.89 

1.95 

2.62 

7.71 

11.47 

4.17 

2.34 

1.68

44.23

M»te.- Discharge computed from staff-gage readings Oct. 16 to Nov. 16, Dec. 31 to Feb. 9.
YAKIMA RIVER BASIN 339 

Tieton River at headworks of Tieton Canal, near Naches, Wafh.

Location.- Water-stage recorder, lat. 46°40'10", long. 121°00'20", in sec. 30, T. 14 N.,

 H. 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 records), July 1907

to September 1948. 

Average discharge.- 39 years (1907-16, 1918-48), 533 second-feet (adjusted for diversions

 since lyiu and for storage since October 1924).

Extremes.- Maximum discharge during year, 2,990 second-feet June 11 (gage height, 5.67

 feet); minimum, 21 second-feet Oct. 16, Jan. 5, 7 (gage height, 1.58 feet).

1907-48: 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. Diversion for irrigation by Tieton Canal. Flow regulated by

 Tieton Reservoir, 7 miles above station. Figures of daily discharge rot adjusted for

diversion or change in reservoir contents. 

Cooperation.- Observer's services and five discharge measurements furnished by Bureau of

Reclamation. 

Revisions.- W 362: Drainage area.

Rating tables, water year 1947-48, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Mar. 8 Mar. 9 to Sept. 30

16 23 2.4 193 3.3 666 1.9 53 2.7 287 4.O 1,250

1.8 46 2.6 269 3.6 895 2.1 92 3.O 440 4.5 1,73O

20 82 2.8 361 3.9 1,160 2.3 143 3.3 645 5.0 2,230

2.2 131 3.0 470 4.4 1,640 2.5 207 3.6 895 5.6 2,880

Discharge, in second-feet, water year October 1947 to September 19^8

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

2324'

25

26

27

28

29

30

31

Oct.

337

300

273

229

170

176

241

241

249

257

257

249

253

253

219

23

29

52

84

66

49

41

36

32

31

34

32

31

31

31

33

Month

October. . . .

November. . .

December. . .

Calendar 

year 1947

January. . . .

February. . .

March. .....

April ......' 

May. .......

June ..... .

July. ......

August. ....

September. .

Water year 

1947-48..

Nov.

33

28

37

33

31

29

29

45

38

34

32

28

29

28

29

28

257

514

703

710

710

681

673

652

645

652

645

645

638

631

-

Dec.

631

624

624

*638

652

688

718

718

710

710

710

710

718

1,020

1,300

1,340

1,340

1,400

1,590

1,590

1,540

1,160

703.

703

703

a460

a3OO

a280

a280

alOO

29

Jan.

30

37

34

33

31

33

28

33

37

45

40

35

30

35

35

35

35

38

38

38

38

35

40

40

42

45

40

35

35

35

35

Feb.

35

35

30

30

30

30

30

25

360

476

453

603

733

748

748

610

442

419

*351

342

347

387

371

361

351

419

382

361

351

_

-

Observed

Discharge in

second-feet

Maximum

337

710

1,590

1,590

45

748

1,040

434 

2,300

2,860

1,340

563

861

2,860

Minimum

23

28

29

23

28

£5

241

94 

88

615

57

333

374

23

Mean

140

309

796

448

36.1

340

375

227 

670

1,753

6 £4

480

740

540

Runoff

acrefeet

8,610

18,380

48,970

324,100

2,220

19,560

23,030

13,530 

41,220

104,300

38,370

29,510

44,050

391,800

Mar.

347

342

342

347

347

366

392

704

1,040

802

585

429

423

429

348

f296

f279

279

279

274

279

301

270

241

241

241

249

274

274

301

292

Apr.

287

287

279

270

262

249

245

193

130

130

132

130

130

204

358

434

338

301

287

301

301

262

237

211

176

149

124

99

94

222

-

Change in

contents

in Tieton

Reservoir 

(acre-feet)

+26,740

+12,130

-26,980

+8,690

+18,510

+2,190

-830

+16,640 

+38 , 900

+4.5CO

-15,860

-26,310

-46,520

+3,200

May

440

861

1,030

1,120

1.07J

754

314

104

94

80

99

119

111

102

99

111

223

385

419

532

477

372

359

859

1,980

2,300

1,510

1,300

1,220

1,180

1,150

Diversion

by

Tieton

Cana:, 

(acre-feet]

0

1,430

956

103,300 4

0

559

1,090

3,200 

11,370

15,450 1

20,350

20,440

18,230

93,080 4

June

1,120

1,290

1,980

2,220

2,150

2,220

2,390

2,480

2,550

2,550

2,860

2,580

2,220

1,870

1,640

2,O2O

2,080

1,800

1,620

1,570

1,610

1,450

1,300

1,200

1,160

1,120

1,070

779

615

1,030

-

July

912

701

945

1,200

1,340

1,160

810

570

170

57

344

161

300

685

685

685

685

693

693

615

55G

55i3

570

563

563

563

563

563

502

434

502

Ang.

502

502

509

502

496

496

496

490

490

483

477

477

471

471

477

477

490

496

496

502

536

563

496

384

333

379

434

490

490

483

490

Sept.

490

496

496

608

709

717

709

734

759

750

742

784

810

810

810

802

802

793

793

793

793

810

818

827

818

027

836

861

836

374

-

Adjusted for change in reservoir

contents and diversion

Runoff

in

acrefeet

35,350

31,940

22,950

36,100

20,730

22,310

23,290

33,370 

91,490

24,30O

42,860

23,640

15,760

88,000

Discharge in

second-feet

Per

Mean square 

mile

575 2.40

537 2.24

373 1.55

602 2.51

337 1.40

388

379

561 

1,488

2, 089

697

384

265

67E

1.62

1.58

2.34 

6.20

8. 70

2.90

1.60

1.10

2.80

Runoff

inches

2.76

2.50

1.79

34.07

1.62

1.74

1.82

2.61 

7.15

9.71

3.35

1.85

1.23

38.13

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station at Tieton Dam, near 

Naches.

f Computed on basis of partly estimated gage-height record.

Note.- Stage-discharge relation affected by ice Jan. 10 to Feb. 9. Figures of daily discharge for 

May 1, 2, 7-17 supersede those published in Water-Supply Paper 1080, "Floods of May-June 1948 in 

Columbia River Basin."
340 YAKIMA RIVER BASIN

North Fork Ahtanum Creek near Tampico, Wash.

Location.- Water-stage recorder, lat. 46°33'40", long. 120°55'10", in NWir sec. 2, T. 12 

Mi., K. 15 E., 100 feet downstream from Nasty Creek, 3| miles upstream 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

Average discharge.- 23 years (1909-15, 1931-48). 65.0 second-feet.

Extremes.- Maximum discharge during year, 770 second-feet May 27 (gage height, 2.97 feet); 

minimum, 15.5 second-feet Dec. 27.

1907-24, 1931-48: Maximum discharge, that of May 27, 1948; maximum gsge 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 ice effect or no gage-height record, 

which are poor. No diversion of importance. No regulation.

Cooperation.- Gage-height record collected in cooperation with, and 15 disci-arge measurements furnished by Office of Indian Affairs.

Revisions.- W 362. Drainage area.

Discharge, in second-feet, water year October 1947 to September 1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

19.5

19.5

21

18.5

17.5

17.5

17.5

19.5

25

26

22

24

22

22

29

45

48

58

80

77

66

54

48

45

41

42

41

41

39

39

42

Nov.

51

42

39

*38

39

38

41

50

44

44

42

3939"

38

38

39

39

38

35

38

34

33

35

38

41

58

56

51

56

54

-

Dec.

54

*48

45

44

39

34

39

37

33

26

35

29

35

35

31

29

31

33

30

30

26

25

25

24

24

' 22

22

24

23

23

25

Jan.

34

23

23

23

*23

28

24

24

24

24

23

23

23

23

23

22

22

22

22

24

27

33

*37

30

29

28

28

27

26

26

25

Month

October . .....................

November ......................

December ......................

Calendar year 1947 .........

January .......................

February ....... .............

March . . ....... .............

April .......... . . ........ .

May......... .......... .... .

June ................... ......

July .... .....................

August ........................

September .....................

Water year 1947-48 .......

Feb.

25

25

24

*b24

b24

24

23

23

23

22

22

21

21

21

20

*b20

b29

39

39

*38

38

42

39

38

37

52

62

72

66

_

-

Secondfoot-days

1,126.5

1,267

980

23,516.0

783

952

1 379 "*,' ?~\i

elsio

11,054

2,530

1,305

751

34,254.5

Mar

52

50

50

47

45

42

41

41

39

37

35

34

34

34

36

34

33

33

31

31

34

45

44

44

45

44

44

58

78

84

80

Maximum

80

58

54

295

37

72

84

206

682

553

140

52

31

682

Apr.

78

78

75

70

65

60

56

52

51

50

50

50

52

58

75

127

147

149

163

182

206

201

184

169

151

142

130

123

117

106

-

May

104

103

112

117

121

158

191

182

172

172

167

172

175

167

167

172

183

182

201

307

374

436

460

475

517

558

682

646

544

480

414

Minimum

17.5

33

22

12

22

20

31

50

102

153

48

34

22

17.5

June

408

433

466

448

436

449

454

451

495

446

553

480

435

399

371

523

444

404

369

352

320

289

268

244

226

208

194

179

167

153

-

Mean

36.3

42.2

31.6

64.4

25.3

32.8 107' 44 5

287

368

81.6

42.1

25.0

93.6

July

140

132

125

117

117

117

106

102

96

92

88

82

80

78

73

70

70

84

72

68

66

60

62

60

57

56

54

54

54

50

48

Per 

square 

mile

0.526

.612

.458

.933

.367

.475

.645

1.55

4.16

5.33

1.18

.610

.362

1.36

Aug.

52

48

45

42

42

42

41

42

47

50

47

45

45

44

47

44

42

41

41

39

41

41

44

41

39

37

37

37

34

34

34

Sept.

31

31

31

31

31

30

28

24

24

23

23

23

23

22

23

23

23

23

23

23

23

23

23

23

23

24

25

25

25

24

~

Runoff

Imhes

0- K"\

.68

.53

1? K9

]

'

]

.42

.51

.74

.73

1.80

).96

.36

.70

.40

18.44

Acre-feet

2,230

2,510

1,940

46,610

1,550

1,890

2,740

6,380

17,670

21 , 930

5,020

2,590

1,490

67,940

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 28 to Jan. 4, Jan. 9-22, Jan. 26 to Feb. 3, Feb. 5-15, 26, 27, 

Mar. 10-16, May 30, Sept. 16-27; discharge computed on basis of weather records and records for 

South Fork Ahtanum Creek at Conrad Ranch, near Tampico.
YAKIMA RIVER BASIN 341

South Pork Ahtanum Creek at Conrad Ranch, near Tampico, Wash.

Locatio tion.- Staff gage, lat. 46°30'3Q", long. 120°54'50", in Wj sec. 

. , at" Conrad Ranch, 2j miles upstream from confluence with Nort

23, T. 12 N. , R. 15 

. , rth Pork, 2¥ miles soathwest 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

1^48

Extremes . - Maximum discharge observed during year, 263 second-feet June 16 (gage height, 

 y.34 feet); minimum, 6.0 second-feet Oct. 1-7.

1915-24, 1931-48: 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 good except those for periods of shifting control, which are fair, and

those for periods of ice effect, vjhich are poor. Gage read twice daily. A few

diversions above station for irrigation. 

Cooperation.- Gage-height record collected in cooperation with, and 12 discharge measurements furnished by Office of Indian Affairs. 

Revisions (water years) .- W 312: 1910. W 902: 1939, drainage area.

Rating tables, water year 1947-48, except periods of ice effect or shifting control 

(gage height, in feet, and discharge, In second-feet)

Oct. 1 to May 26 May 27 to Sept. 30

0.6 4.4

.7 7.2

.8 11

.9 17

1.0 25

1.2

1.4 

1.6 95

112

163

0.9 31

1.0 40

1.2 61

1.4 86

1.6 115

1.8 148

2.0 187

2.3 253

Discharge, in second-feet, water year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.3 

6.0 

6.0 

6.0 

6.0

6.0 

6.0 

6.9 

7.2 

7.5

6.9 

6.6 

6.3 

6.3 

6.6

9.4 

11.5 

13.5 

15 

14.5

11.5 

10 

9.0 

8.6 

8.6

9.0 

9.0 

9.0 

9.4 

9.4 

10

Nov.

10 

10 

9.8 

*9.4 

9.4

9.4 

9.4 

9.0 

9.0 

8.6

8.6 

8.6 

8.6 

8.6 

8.6

8.6 

9.0 

9.0 

8.6 

8.6

8.2 

7.8 

7.8 

7.8 

8.6

9.0 

9.0 

9.0 

9.0 

9.0

Dec.

9.4 

*9.4 

9.4 

8.6 

7.2

6.6 

6.5 

7.5 

8.0 

7.5

10.5 

8.2 

8.2 

7.8 

7.8

7.8 

7.8 

7.8 

7.8 

7.8

7.8 

7.8 

7.5 

7.2 

7.2

7.2 

7.0 

6.6 

6.8 

6.6 

6.4

Jan.

6.4 

6.4 

6.4 

6.4

 6.4

6.4 

6.4 

6.4 

6.4 

6.4

6.3 

6.3 

6.3 

6.3 

6.3

6.3 

6.3 

6.3 

6.3 

6.4

6.8 

7.2 

*8.2 

7.0 

6.6

6.4 

6.4 

6.4 

6.4 

6.3 

6.3

Feb.

6.3 

6.4 

6.8 

*6.8 

6.8

6. a 

6.8 

6.8 

6.6 

6.6

6.6 

6.6 

6.8 

6.8 

7.2

7.5 

11.5 

14.5 

14.5 

*14.5

14 

17 

18 

17 

22

24 

25 

25 

23

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Aagu 

Sept

Wa

lendar year 1947

ter year 1947-48 .......................

Mar.

*22 

21 

20 

19 

19

19 

19 

19 

18.5 

18

16.5 

15.5 

15.5 

15.5 

17

15.5 

15 

15 

13.5 

13.5

17 

25 

21 

18.5 

18

18 

18 

18 

31 

42 

40

Apr.

37

36 

34 

34 

32

27 

23 

20 

18 

17

16.5 

16.5 

20 

23 

28

39 

45 

49 

52 

55

61 

61 

60 

58 

49

44 

41 

42 

34 

31

Secondfoot -days

264.0 

266.0 

239.7

6,467.4

201.1 

348.2 

613.5 

1,103.0 

2,393 

3,414 

793.5 

456.5 

319.5

10,412.0

May

31 

32 

33 

34 

38

40 

43 

44 

45 

45

43 

47 

48 

44 

44

45 

48 

49 

60

80

92 

108 

120 

136 

145

149 

188 

175 

145 

126 

116

Maximum

15 

10 

10.5

66

8.2 

25 

42 

61 

IBS 

238 

42 

18 

12

238

June

101 

98 

110 

110 

110

115 

118 

122 

128 

151

168 

155 

145 

121 

118

238 

211 

168 

137 

115

100 

92 

89 

78 

66

59 

51 

48 

47 

45

July

42 

41 

38 

37 

36

35 

32 

31 

31 

29

25 

25 

25 

25 

25

24 

23 

25 

22 

21

20 

20 

19 

19 

18.5

18 

18 

IB

17 

17 

17

Minimum

6.0 

7.8 

6.4

5.7

6.3 

6.3 

13.5 

16.5 

31 

45 

17 

12 

10

6.0

Aug.

18 

18 

18 

16 

16

16 

16 

15.5 

17 

17

16 

15.5 

15 

15 

15

15 

14 

14 

14 

14

14 

14 

13.5 

13 

13

13 

13 

12 

12 

12 

12

Me^n

e.52 

e.87

7.73

17.7 '

6.49 

12.0 

IS. 8

se.a

77.2 

114 

25. 6 

14.7 

1C. 6

26.4

Sept.

12 

12 

12 

12 

12

12 

12 

12 

11.5 

11

10 

10 

10 

10 

10

10 

10 

10 

10 

10

10 

10 

10 

10 

10

10.5 

10.5 

10 

10

10

Runoff In 

acre-feet

524 

528 

475

12,830

399 

691 

1,220 

2,190 

4,750 

6,778 

1,570 

905 

634

20,660

* Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dec. 7-10, Dec. 27 to Feb. 14, 

ShiftIng-control method used PeB. 15-17, Mar. 9 to May 26.

Pet. 18 to Mar. 8.
12 MISCELLANEOUS DISCHARGE MEASUREMENTS

Measurements of stream flow in Pacific slope basins in Washington and upper Columbia 

River Basin made at points other than gaging stations are given in the following table:

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper Columbi'a 

River Basin during water year October 1947 to September 1948

Bear River Basin, Wash.

Date

Oct. 1

Stream tributary to or 

diverting from 

Shoal water Bay. . . .

Locality

Si sec. 21, T. 10 N., R. 1O W., a*. 

limestone quarry, 5 miles northeast 

of Ilwaco.

Discharge 

(sec. -ft.)

16.9

Union River Basin, Wash.

Oct. 1 Bear Creek. ......... Union River. ...... SEi sec. 9, T. 23 N. , R. 

highway crossing, 2 mil 

Self air.

1 W., at 

es north of

0.75

Mission Creek Basin, Wash.

Oct. 1 Mission Creek. ...... Hood Canal ....... Near south li:ie sec. 96, 

2 W., at road crossing, 

southwest of Belfair.

T. 23 N., R. 

2j milea

6.^5

Dewatto Creek Basin, Wash.

Oct. 1 Unnamed stream. ..... Dewatto Creek. . . . SEi sec. 27, T. 23 N. , R. 

road crossing, lj miles 

Dewatto.

3 W., a*, 

east of

1.38

Thomas Creek Basin, Waah.

feet above road, 500 feet above 

mouth, and £ mile northeast of 

Holly.

Chico Creek Basin, Wash.

Dec. 11

Dec. 11

Sept. 29

Wildcat Creek. ......

Kitsap Lake Outlet..

... .do.. ............

Chico Creek. ......

Dickerson Creek. . .

.... do ............

E-j sec. 2, T. 24 N., R. 1 W., at outlet 

of Wildcat Lake, 5 miles west o" 

Bremerton.

SWj sec. 8, T. 24 N., R. IE., at lake 

outlet, 2 miles south of Chico.

.... do .............. .^ .................

1-84.

6.34

1.40

5.15

4.16

1.45

6.50

Minter Creek Basin, Wash.

Oct. 3 Minter Creek. ....... Henderson Bay. .... SW-J sec. 16, T. 22 N., R. 1 E., at 

road crossing, £ mile above Huge 

Creek and Z\ miles west Wauna.

feet below private bridge, 1 mile 

above mouth, and 6 miles northeast 

of Shelton.

former gaging station, f mile above 

mouth and 6 miles northeast of 

Shelton.

10.0

Cranberry Creek Basin, Wash.

15 .... do ............

feet below bridge, 1 mile above 

former gaging station, and 4j miles 

northeast of Shelton. 

NW-J sec. 36, T. 21 N., R. 3 W., at 

former gaging station, ^ mile above 

mouth and 5 miles northeast of 

Shelton.

11.5

17.8

15 ... .do.. ............

Johns Cre c Basin, Wash.

above former gaging station and 

3 miles north of Shelton. 

JIEk sec. 5, T. 20 N., R. 3 W. , at 

former gaging station, 2j miles 

above mouth 9""1 3 miles north of 

Shelton.

10.7

27.2
MISCELLANEOUS DISCHARGE MEASUREMENTS 343

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper Columbia 

River Basin during water year October 1947 to September 1948--Continued

Nisqually River Basin, Wash.

Date

Oct. 30

May 13

Oct. 30

Feb. 27

June 10

Stream

Yelm irrigation 

ditch.

Centralia power 

canal.

Tributary to or 

diverting from 

Nisqually River. . .

.... do ............

Locality

Si sec. 20, T. 16 N., R. 3 E., opposite gaging station on Nisqually 

River, near McKenna.

NWj- sec. 1, T. 16 N., R. 2 E., 3 mile 

below head and 33 miles southeast 

of McKenna.

NW"^ sec 29 T 17 N R 2 E 200

feet above highway and lj miles 

west of McKenna.

{ mile above mouth and 3j miles 

northwest of McKenna.

at road crossing 200 feet above 

mouth and 3$ miles northwest of 

McKenna .

Discharge 

(sec. -ft.)

No flow

410

Puyallup River Basin, Wash.

Dec . 4

Sept. 29

Clark Creek

do

.... do .............. .... do ............

below forks at old pumping plan*; 

at Puyallup.

.... do ............................... 33.2

Snohomish River Basin, Wash.

June 23

Aug. 26

Olney Creek. ........ Wallace River. ....

.... do ............

SE£ sec. 12, T. 28 N., R. 

former gaging station 5 

east of Startup.

.... do ...................

8 E . , av. 

miles north103

114

Skagit River Basin, Wash.

June

Nov.

Dec.

Feb.

Apr.

8

10

3

?7

2

Lightning Creek. ....

Granite Creek. ......

Canyon Creek. .......

. .. .do. ......... r. ..

Skagit River. .....

Ruby Creek. .......

.... do ............

.... do ............

SE-J- sec. 4, T. 39 N. , R. 14 E. (""-

surveyed) , at former gaging station,

19 miles northeast of Newhalem.

SE-tNE^ sec. 20, T. 37 N., R. 16 E.,

at former gaging station, 1 mile

above confluence with Canyon Cr^ek

and 16 miles east of Newhalem.

About T. 37 N., R. 16 E. (Unsurveyed)

at Beebe bridge, 500 feet above

mouth and 7j miles southeast of

Ross Dam.

.... do ...............................

3,630

1,890

110

63.9

Chuckanut Creek Basin, Wash.

July 13

23

20

Chuckanut Creek. ....

. . ^.do. .............

Chuckanut Bay. ....

.... do ............

NEi sec. 13, T. 37 N., R. 2 E., at

old Pacific Highway crossing, 1 mile

south of Bellingham.

... .do.. .............................

1.57

.85

Whatcom Creek Basin, Wash.

Sept. 21 

21

21

21 

a Estl

Unnamed stream. ..... 

.... do ..............

Fish Hatchery Creek.

nated.

Lake Whatcom. ..... 

... .do. ...........

SEiSEi sec. 20, T. 37 N., R. 4 E.. 

at road crossing at Wildwood, 6j 

miles east of Bellingham. 

SEi sec. 21, T. 37 N., R. 4 E., at

road crossing, 1\ miles east of 

Bellingham. 

SWiNW-i sec. 27, T. 37 N., R. 4 E., 

at road crossing, 8-3 miles east 

of Bellingham. 

NWj-NW-fr sec. 26, T. 37 N., R. 4 E., 

at road crossing at head of Lake 

Whatcom, 9 miles east of Bellingham.

a. 10 

a. 02 

1.03 

a. 10
344 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins in Washington and upp<?r 

River Basin during water year October 1947 to September 1948 Continued

Whatcom Creek Basin, Wash. Continued

Date

Sept.Zl

July 13

Sept.Zl

Streams

Mirror Lake Creek. . .

....do..... .........

Olsen Creek. ........ 

.. ..do....... .......

Carpenter Creek. ....

Tributary to or 

diverting from--

Lake Whatcom. .....

....do..... .......

.... do ............

Locality

NW£NW£ sec. 26, T. 37 N., R. 4 E., 

at road crossing at head of Lake 

Whatcom, 9 miles east of Bellingham.

at road crossing at Sunnyside.

SWfc sec. 30, T. 38 N., R. 4 E., at 

road crossing, i mile south of 

Woodlawn.

NW£swi sec. 30, T. 38 N., R. 4 E., at 

road crossing, £ mile south of Woodlawn.

Discharge 

(sec. -ft.)

Z.08

1.60

.83

a. 05

a Estimated.

Squalicum Creek Basin, Wash.

Sept.ZO

ZO 

Zl

Zl

Squalicum Creek. ....

Toad Lake Outlet. . . .

. ...do............ ..

Bellingham Bay. . . .

Squalicum Creek. . .

Unnamed stream. . . .

NEi sec. 10, T. 38 N., R. 3 E., at 

Mt. Baker Highway crossing, f mile 

east o Van Wyck.

below oad crossing at Bellingham.

3X30 fe t above Meridian Way, in 

park a Bellingham. 

SEtSE£ s o. 9, T. 38 N., R. 3 E., 

at Mt. Baker Highway crossing, 

i mile southeast of Dewey.

at roa crossing, i mile north of 

Bellingham. 

SWt sec. 7, T. 38 N., R. 3 E., abov? 

road crossing, 4 mile north of 

Bellingham.

a. 08

.05

No flow

a Estimated.

Silver Creek Basin, Wash.

July ZO Sliver Creek. ....... Bellingham Bay. . . . SE£ sec. 34, T. 39 N., R. Z E., at 

Sunset Road crossing, lj miles 

east of Brennan.

0.91

Nooksack River Basin, Wash.

July Z3

Z3

Sept. 22

ZZ

ZZ

ZZ

ZZ

ZZ

ZZ

ZZ

ZZ

ZZ

ZZ

ZZ

ZZ

a Esti

Nooksack River. .....

.... do ..............

Deer Horn Creek. ....

Unnamed stream. .....

.... do ..............

Coal Creek. .........

Gallopp Creek. ......

Unnamed stream. .....

Canyon Creek. .......

Unnamed stream. .....

....do..............

.... do ..............

Boulder Creek. ......

Maple Creek. ........

Unnamed stream. .....

lated.

Bellingham Bay. . . .

....do..... .......

Nooksack River. . . .

.... do ............

.... do ............

.... do ............

....do......... ...

....do............

....do............

.... do ............

.... do ............

.... do ............

.... do ............

.... do ............

Kendall Creek. ....

West line sec. 27, T. 39 N., R. 5

E., at highway bridge, i mile

above Middle Fork and 1 mile west

of Kulshan.

SE£ sec. 6, T. 38 N., R. 5 E., at

railroad trestle immediately abovs

South Pork and 1 mile southeast

of Demlng.

SE£ sec. 35, T. 40 N., R. 7 E., at

Mt. Baker Highway crossing,

4 miles east of Glacier.

NWj sec. Z, T. 39 N. , R. 7 E., at

Mt. Baker Highway crossing, 3j

miles east of Glacier.

NWt sec. 3, T. 39 N. , R. 7 E., at

Mt. Baker Highway crossing, Zj

miles east of Glacier.

NWj sec. 4, T. 39 N., R. 7 E., at

Mt. Baker Highway crossing,

Z miles east of Glacier.

NEt sec. 7, T. 39 N. , R. 7 E., at

Mt. Baker Highway crossing at

Glacier.

NEt sec. 1, T. 39 N. , R. 6 E., at

Mt. Baker Highway crossing,

1 mile west of Glacier.

SE£ sec. 35, T. 40 N., R. 6 E.,

300 feet above mouth and

2 miles northwest of Glacier.

NEfc sec. 34, T. 40 N. , R. 6 E.,

at Mt. Baker Highway crossing,

3 miles northwest of Glacier.

SWfc sec. Z7, T. 40 N., R. 6 E., at

Mt. Baker Highway crossing,

4 miles northwest of Glacier.

SWfc sec. 27, T. 40 N., R. 6 E., at

Mt. Baker Highway crossing, 4^

miles northwest of Glacier.

NW£SEi sec. Z8, T. 40 N., R. 6 E.,

at Mt. Baker Highway crossing,

2 miles east of Maple Palls.

South line sec. 30, T. 40 N., R.

6 E., at Mt. Baker Highway cross -

ing at Maple Falls.

NWt sec. 36, T. 40 N., R. 5 E., at

road crossing, lj miles east of

Kendall.

1,750

2, ZOO

1.17

.22

.96

.74

20.5

2.67

139

.23

1.03

a. 10

45.7

7.85

2.86
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge me 

River Basin dur

lasurements in Pacific slope basins in Washington and upper 

 ing water year October 1947 to September 1948 continued

Nooksack River Basin, Wash. Continued

Date

Sept. 22 

July 9

Sept. 21

21

21

21

21

July 7

18

Sept. 21 

July 22

July 21

July 6 

21

July 6 

Sept. 21 

July 2

July 22

Sept. 21 

Nov. 26

July 2

16

Stream

Unnamed stream. ..... 

Bells Creek. ........

Hutchinson Creek. . . .

Jones Creek. ........ 

Unnamed stream. .....

McCarty Creek. ...... 

Black Slough. .......

Anderson Creek. .....

Unnamed stream. ..... 

Fishtrap Creek. .....

East Branch Double 

Ditch Creek.

....do..............

Ditch Creek.

....do....... ....... 

Unnamed stream. ..... 

Bert rand Creek. .....

Tenmlle Creek. ......

Fourmile Creek. ..... 

Larrabee Springs ....

. ...do.. ............

Deer Creek. .........

.... do ..............

Tributary to or 

diverting from 

Nooksack River. . . . 

.. ..do.......... ..

South Fork Nooksack River.

... .do. ........... 

... .do. ...........

.... do ............ 

.. ..do. ...........

... .do. ...........

....do..... ....... 

....do.... ........

Double Ditch Creek

....do.. ..........

.... do ............

Fishtrap Creek. . . . 

Nooksack River. . . .

Barrett Lake ......

Tenmile Creek. .... 

Deer Creek. .......

Barrett Lake. .....

.... do ............

Locality

NEi sec. 9, T. 39 N., R. 5 E., at 

Mt. Baker Highway crossing, Z\ 

miles south of Kendall. 

SEi sec. 21, T. 39 N. , R. 5 E., at 

Mt. Baker Highway crossing, 1-J 

miles northwest of Kulshan.

NWi sec. 2, T. 37 N,, R. 5 E., at 

road crossing, 3 miles east of 

Acme. 

North line sec. 7, T. 37 N., R. 5 E., 

at road crossing at Acme. 

West line sec. 5, T. 37 N., R. 5 El, 

at road crossing, i mile north of 

Acme. 

NWfc sec. 6, T. 37 N. , R. 5 E., at 

road crossing, J mile northwest of 

Acme. 

NW-J- sec. 17, T. 38 N., R. 5 E., at 

road crossing, ^ mile south of 

Van Zandt.

at highway crossing, i mile south 

of Lawrence.

SEi sec. 6, T. 38 N., R. 4 E., at 

Mt. Baker Highway crossing, 3 miles 

south of Goshen.

SEi sec. 29, T. 40 N. , R. 3 E., at 

Hannegan road crossing, 1 mile 

south of Goahen. 

NEi sec. 25, T. 40 N. , R. 2 E., at 

State Highway IB crossing, 1 mile 

southwest of Lynden.

lffi£ sec. 31, T. 41 N., R. 3 E., at 

international boundary, 4 miles 

north of Lynden.

South line sec. 7, T. 40 N., R. 3 E., 

at Blaine-Sumas road crossing, 

1 mile northwest of Lynden.

International boundary, 4 miles 

north of Lynden.

South line sec. 7, T. 40 N., R. 3 E., 

at Blaine-Sumas road crossing, 

1 mile northwest of Lynden. 

NW-J- sec. 18, T. 40 N. , R. 3 E., at 

Lynden-Sumas road crossing, ij 

miles northwest of Lynden. 

SEt sec. 11, T. 40 N. , R. 2 E., st 

Blaine-Sumas road crossing, 2j 

miles northwest of Lynden.

NE-J- sec. 18, T. 39 N., R. 3 E., at 

road crossing, 1 mile northeast of 

Laurel.

do

Wi sec. 18, T. 39 N. , R. 3 E., at 

road crossing, 1 mile north of 

Laurel. 

NW-J-NWi sec. 36, T. 39 N., R. 2 E., 

100 feet below source, 2 miles 

southwest of Laurel.

NEi sec. 27, T. 39 N., R. 2 E., at 

road crossing, 2 miles east of 

Ferndale.

.... do ...............................

Discharge 

(sec. -ft.)

4.82

2.16

1.63

9.77

a. 01 

2.14

1.12 

1.50

1.46

.52

.84

4.18 

14.1 

12.0

4.18

6.79 

3.74

5.77

2.80 

1.44 

8.17

5.57

1.76

3.06 

1.19

1.79

1.30

1.09

a Estimated.

Terrell Creek Basin, Wash.

Sept. 20 Terrell Creek. ...... Birch Bay. ........ West

at

of

line

road

Blaii

se

cr

ie.

c. 6, T

ossing,

39 N. , 6 milesR. 1 E.,

south

No flow
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Pacific slope "basins in Washington and upper Columbia 

River Basin during water year October 1947 to September 1948 Continued

Terrell Creek Basin, Wash. Continued

Date

Sept. 20

Stream

Flngalson Creek. ....

Tributary to or 

diverting from 

Terrell Creek. ....

Locality

South line sec. 3, T. 39 N., R. IE., 

4 miles northwest of Ferndale.

Discharge 

(sec. -ft.)

Mo flow

California Creek Basin, Wash.

July 2

16

California Creek. . . .

do

Drayton Harbor. . . .

do

.... do ............

SE£ sec. 21, T

road crossing

of Blaine.

do

. . . .do. .......

40 N., R

 4 miles

IE., at

southeast

2.64

1.34

Dakota Creek Basin, Wash.

July 2

Sept. 20

20

20

20

20

Creek

Creek.

at road crossing 

east of Blaine.

road crossing, 5 

Blaine .

road crossing, 4 

Blaine .

road crossing, 2 

Blaine .

R. IE., at road 

east of Blaine.

at road crossing 

Blaine.

40 N., R. IE.,

, 5 miles southmiles southeast cf

miles east of

miles east of

crossing, 2 miles 

T. 40 N., R. 1 E.,

, li miles east of

1.42

1.16

1.23

.36

.47

.28

.05

Fraser River Basin, Wash.

Sept. 20 

July 22

Sept. 20

21

21

Sept. 20

20 

21

July 21 

12

21

17

Sept. 21

July 21 

Sept. 21

20

Sumas River. ........ 

... .do. .............

Unnamed stream. .....

do

Kinney Creek:. .......

Bone Creek. ......... 

Johnson Creek. ......

... .do. .............

West Branch Johnson Creek.

Pangborn Lake Creek.

Saar Creek. .........

Vedder River. .....

Sumas River. ......

do

... .do. ........... 

. .. .do. ...........

.. ..do. ...........

Johnson Creek. ....

Sumas River. ......

West line sec. 9, T. 39 N., R. 4 E. , 

at road crossing, 2 miles north 

of Lawrence. 

South line sec. 29, T. 40 N., R. 4 

E., at road crossing, at Mooksack.

North line sec. 9, T. 39 N., R. 4 E., 

at road crossing, 2i miles southeast of Nooksack.

road crossing, 1 mile southeast of 

Nooksack.

road crossing, £ mile east of Nooksack.

at Goodwin road crossing, lj miles 

east of Nooksack.

NW-i sec. 22, T. 40 N. , R. 4 E., at 

road crossing, 3 miles south of 

Sumas. 

NW£ sec. 2, T. 40 N., R. 4 E., at 

road crossing at Sumas. 

South line sec. 8, T. 40 N., R. 4 E., 

at road crossing, 1 mile south of 

Clearbrook. 

South line sec. 5, T. 40 N., R. 4 E. , 

at road crossing, i mile east of 

Clearbrook.

Cherry St. crossing at Sumas.

South line sec. 12, T. 40 N., R. 3 E., 

at road crossing, 2 miles southwest 

of Clearbrook.

at road crossing, lj miles southwest 

of /,'learbrook. 

SWi sec. 5, T. 40 N., R. 4 E:, at 

road crossing at Clearbrook.

Center sec. 12, T. 40 N. , R. 4 E., a*, 

mouth of canyon, li miles southeast 

of Sumas.

No flow 

12.1

.50

3.50

3.33

3.04

1.47

1.52

1.10

1.28

a. 12

.20 

No flow

8.31

18.8

18.5

1.18

4.83

2.67

a Estimated.
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper Columbia 

River Basin during water year October 1947 to September 1948--Continued

Kootenay River Basin

Date

Oct. 8

(») 

(»)

(*) 

(*)

(*)

May 20

June 5

Stream

Kootenay River. ....

do

Tobacco River. ..... 

Fisher River. ......

Granite Creek. .....

Mission Creek. .....

Tributary to or 

diverting from 

Columbia River. .....

do

do

do

Kootenai River. ..... 

....do.. ............

. ...do.. ............

Locality

Grohman Narrows, 2 miles below 

Nelson, British Columbia; measurements referred to gage No. 10 at 

Nelson (station 8 N., J. 9 of 

Dominion Water and Power Bureau, 

Department of Mines and Resources, 

Canada) .

do

do

do

do

do

do

SEj sec. 8, T. 36 N., R. 27 W. , about 

3 miles northwest of Eureka. Mont, 

(drainage area, 485 square miles). 

Sec. 21, T. 30 S., R. 29 W. , 1.5 

miles above mouth, 2 miles southeast of Jennings, and 11 miles 

east of Libby, Mont, (drainage 

area, 840 square miles). 

SEj sec. 5, T. 29 N., R. 31 W., at 

former gaging station at Glacier 

Silver-Lead Mine, 2-J miles above 

Cherry Creek and 7 miles southwest of Libby, Mont, (drainage 

area, 23.6 square miles).

log bridge, \ miles south o*" 

Libby, Mont, and lj miles a\>ove 

mouth (drainage area, 20.5 square 

miles) .

site of former gaging station, 

1,000 feet above mouth, just 

above U. S. Highway 2 bridg; and 

about 8 miles northwest of Troy, 

Mont, (drainage area, 559 square 

miles) . 

NWt sec. 17, T. 64 N., R. IE., 

Just below State Highway 1, 1 mile 

east of Copeland, Idaho.

Creston Ferry and 4 miles w?st 

of Creston, British Columbia.

Columbia (station 8N. J. 13 of 

Dominion Water and Power Bureau, 

Department of Mines and Resources, 

Canada) .

Discharge 

(sec. -ft.)

21,480

155,200

96,410

b2,810 

b6,560

bl,520 

c720

g450

19 , 700

* Crest of flood, May-June.

b Computed by slope-area method.

c Computed by contracted-opening method.

g Dam and orifice, and slope-area determinations.

Fend Orellle River Basin (*)

(*)

Oct. 22

May 29

June 30

July 29

Sept. 23

(*)

Oct. 17

Dec. 22

Mar. 2

May 27

Aug. 2

* Cres

Clark Fork. ........

Little Blackfoot

River.

Willow Creek. ......

.... do .......:.....

... .do. ............

Rock Creek. ?'.. ....

Douglas Creek. .....

... .do. ............

.... do .............

... .do. ............

t of flood, May-June.

Fend Oreille River. .

Clark Fork. .........

Flint Creek. ........

...«. do. .............

... .do. .............

....do. .............

Clark Fork. .........

Blackfoot River. ....

do

.... do ..............

.... do ..............

SWi sec. 14, T. 9 N., R. 10 W.,

1,000 feet below Northern Pacific

Railroad bridge and 1 mile northwest of Garrison, Mont, (drainage

area, 1,610 square miles).

Ei sec. 24, T. 9 N., R. 10 W. , Just

above highway bridge on U. S.

Highway IDS, and 1 mile east of

Garrison, Mont .,( drainage area,

407 square miles).

MEtNWi- sec. 24, T. 10 N., R. 13 W.

\ mile above mouth and 2 miles

northeast of Hall, Mont, (drainage

area, 102 square miles).

.... do ..............................

... .do. .............................

. ...do.......... ....................

SWi sec. 36, T. 10 N. , R. 17 W. ,

near former gaging station, 500

feet above timber bridge, 1 mile

above Ranch Creek, and 3 miles

south of Quigley, Mont, (drainage

area, 748 square miles).

NWi sec. 5, T. 12 N., R. 11 W., at

site of gaging station 4 miles

southwest of Helmville, Mort.

do

.... do ..............................

.... do ..............................

.... do ..............................

b6,130

bl,260

15.1

163

30.4

29.6

14.5

b5,140

12.6

5.0

2.3

68.4

18.5

b Computed by slope- ^ea method.
MISCELLANEOUS DISCHARGE MEASUREMENTS

ellaneous discharge measurements in Pacific slope basins In Washington and vpper 

River Basin during water year October 1947 to September 1948 Continved

Pend Oreille River Basin Continued

Tributary to or 

diverting from Locality Discharge (see.-ft.)

North Fork Blackfoot River.

Blackfoot River. 

Clark Fork......

(*) Clearwater River.

Rattlesnake Creek.

Lost Horse Creek...

Skalkaho Creek.....

Kootenai Creek.

Lolo Creek.

Ninemile Creek.

St. Regis River.

South Fork Flathead River.

Spotted Bear River.

Twin Creek.........

Lower Twin Creek.

Sullivan Creek.

* Crest of flood, May-June.

b Computed by slope-area method.

d Determination of flow over dam.

NW-t sec. 5, T. 12 N., R. 11 W., at 

site of gaging station 4 miles 

southwest of Helmville, Mont.

SW£ sec. 17, T. 15 N., R. 11 W., at 

Pitkins Ranch, 11 miles northeast 

of Ovando, Mont, at former gaping 

station (drainage area, 227 square 

miles).

NW£ sec. 16, T. 14 N., R. 14 W., 

near former gaging station an<j 

about ^ mile above mouth, Mont. 

(drainage area, 398 square miles).

Sec. 11, T. 13 N., R. 19 W., at 

The Montana Power Co. dam, about 

4 miles north of Mlssoula, Mort. 

(drainage area, 73.8 square miles).

SWt sec. 18, T. 4 N., R. 21 W., at 

diversion dam, If miles below 

South Fork, and 5f miles southwest 

of Hamilton, Mont, (drainage area, 

67 square miles).

Sec. 30, T. 5 N., R. 19 W., 500 feet 

below High Line Canal and 9 miles 

southeast of Hamilton, Mont, 

(drainage area, 100 square miles).

Sec. 8, T. 9 N., R. 20 W., at site 

of gaging station established in 

October 1948 at uppermost fluire 

diversion, 1,500 feet above road 

end and 4 miles northwest of 

Stevensville, Mont, (drainage area, 

29.1 square miles).

Wi sec. 5, T. 11 N., R. 20 W., at 

site of gaging station established 

in 1950 at log diversion dam at 

mouth of canyon, 3 miles west of 

Lolo, Mont, (drainage area, 250 

square miles).

KEi sec. 2, T. 15 N., R. 23 W., 

| mile below Stark Creek, £ mile 

southwest of former Stark post 

office site, and 5 miles northwest of Nlnemile, Mont, (drainage 

area, 146 square miles).'

NWi'S. 6, T. 14 N., R. 24 W., 

\ mile above Clark Fork and 

3 miles east of Tarkio, Mont, 

(drainage area, 258 square 

miles).

KEi sec. 28, T. 18 N., R. 28 W., 

at former gaging station, 500 

feet below Twomile Creek and 

3 miles west of St. Regis, Mont. 

£ drainage area, 302 square miles).

SWt sec. 17, T. 25 N., R. 15 W., 

at site of gaging station established in August 1948, 500 feet 

upstream from mouth of Spotted 

Bear River and 40 miles southeast of Hungry Horse, Mont. ( 

(drainage area, 959 square miles).

Center sec. 17, T. 25 N., R. 15 W., 

at site of gaging station established September 1948, 1/3 mile 

above mouth and 40 miles southeast of Hungry Horse, Mont. 

(drainage area, 180 square miles).

Hi sec. 30, T. 26 N., R. 15 W., 

about 1/3 mile above site of 

gaging station established 

August 1948, about i mile abov; 

mouth, and 36 miles southeast of 

Hungry Horse, Mont, (drainage 

area, 47.6 square miles).

SE£ sec. 24, T. 26 N., R. 16 W., 

\ mile above mouth at site of 

gaging station established 

August 1948, and 35 miles southeast of Hungry Horse, Mont, 

(drainage area, 22.2 square miles).

SE£ sec. 11, T. 26 N., R. 17 W., at 

mouth of Quintonkon Creek, J mile 

above gaging station established 

September 1948, 3i miles above 

mouth, and 30 miles southeast of 

Hungry Horse, Mont, (drainage 

area, 72.7 square miles).

11.7 

b4,380

b3,220

dl,460'

bl,870

b3,400

b4,650

b4,010

bl,200

b2,280
MISCELLANEOUS DISCHARGE MEASUREMENTS 349

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

River Basin during water year Octbber 1947 to September 1948 Continued

Fend Orellle River Basin Continued

Date

(*)

(*)

(*) 

(*)

(*) 

(*)

(*)

May 27 

or 28

27

or 28

Stream

Swan River. ........ 

Big Creek. .........

Thompson River. ....

Lightning Creek. . . . 

Indian Creek. ......

Tributary to or 

diverting from 

....do...... ........ 

.... do ..............

....do..............

... .do.... .......... 

Priest Lake. ........

Locality

W~ sec 4 T 27 N R 17 W

2 miles above mouth at site of 

gaging station established 

August 1948, and 22 milea southeast of Hungry Horse, Mont, 

(drainage area, 33.0 square miles). 

South line sec. 36, T. 21 N., R. 17 

W., Just below bridge £ mile west 

of Rumble Creek store, 5 mile 

south of Rumble Creek alrpo.-t and 

40 miles southeast of Bigfcrk, 

Mont, (drainage area, 14.4 square 

miles) . 

Sec. 35, T. 23 N., R. 19 W. , near 

former gaging station, at o-jtlet 

from power-plant reservoir, 1.7 

miles upstream from mouth and 

6 miles east of Poison, Mon*;. 

(drainage area, 5.0 square miles).

former gaging station, abov? headworks of Jocko K 1 Canal, Just above 

mouth of Big Knife Creek ani 4j 

miles east of Arlee, Mont, (drainage area, 144 square miles). 

SEi sec. 7, T. 21 N. , R. 28 W., at 

former gaging station, 200 yards 

above boundary of Cabinet Forest, 

 | mile above mouth, and 6 miles 

east of Thompson Falls, Mont, 

(drainage area, 638 square miles).

former gaging station, -J mile 

above mouth and 1 mile south of 

Thompson Falls, Mont, (drainage 

area, 145 square miles).

Just below timber highway bridge, 

about 3 miles above mouth and 4^- 

miles northwest of Noxon,' Kont. 

(drainage area, 137 square miles). 

Near center sec. 7, T. 56 N., R. 3 

E., below Morris Creek, and 

5 miles northeast of Clark Fork, 

Idaho. 

Wi sec. 23, T. 61 N., R. 4 W. , 

above road bridge, l4 miles 

above mouth and 11 miles ncrth 

of Coolln, Idaho.

Discharge 

(sec. -ft.)

bl 440

bl,350 

c85

b6,190

b5,100 

b800

* Crest of flood, May-June.

b Computed by slope-area method.

c Computed by contracted-opening method.

Sheep Creek Basin, Wash.

About 

May 29

Sheep Creek. ....... Columbia River. ..... NEj sec. 25, T. 40 N., R. 39 E., 

500 feet above former gaglrt? 

station and li miles north of 

Northport .

b3,070

b Computed by slope-area method.

Kettle River Basin, Wash.

May or 

June

Curlew Creek. ...... Kettle" River. ....... Si sec. 21, T. 38 N., R. 33 E., 

at culvert at former gaging 

station below Lambert Creek, 

9 miles above Curlew.

e!39

e Computed by critical-depth method.

Colvllle River Basin, Wash.

May 18 

18

Chewelah Creek. ....

South Fork Chewelah 

Creek.

Colvllle River... . .. 

Chewelah Creek. .....

NEi sec. 14 , T. 32 N., R. 40 E., 

at street crossing at Chewelah. 

NEj sec. 11, T. 32 N., R. 40 E., 

400 feet above mouth, at 

Chewelah.

t211 

39.8

t Stage about 0.3 foot higher occurred on May 13, 1948.

Sherman Creek Basin, Wash.

About Shei-man Creek...... Columbia River...... SE£ sec. 25, T. 36 N., R. 36 E.

May 6 7i southwest of Kettle Falls.

b Computed by slope-area method.

Hall Creek Basin, Wash.

May 6 Hall Creek. ........ Columbia River. ..... NWi sec. 2, T. 32 N., R. 36 E., 

just below secondary highway, 

2 miles west of Inchelium.

bl,770

b Computed by slope-area method.
350 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins in Washington and u^per Columbia 

River Basin during water year October 1947 to September 1948 Continued

Spokane River Basin

Date

'Probably 

late May

May 29

May 28 

July 29

Oct. 19

Aug. 12

26

July 13

20

1

22

28 

28 

23 

July 10

25

Sept. 9

23i

23

Aug. 31

July 11

Stream

Big Creek. ........ 

St. Joe Hlver. ....

River.

Little Spokane 

River.

... .do.. ..........

. . . .do. ...........

Dry Creek. ........

Cold Snow Creek. . .

Unnamed stream. . . . 

... .do. ...........

West Branch Little 

Spokane River.

.... do ............

... .do.... ........

... .do. ...........

Moon Creek. .......

Deer Creek. .......

.... do ............ 

ihprt.

Tributary to or 

diverting from 

Coeur d'Alene River. 

Coeur d'Alene Lake..

Spokane River. ......

... .do. ..............

.... do ..............

Little Spokane River

Dry Creek. ..........

Otter Creek. ........ 

.... do .............. 

. Little Spokane River 

.. ..do. .............

. ...do. .............

Sacheen Creek. ......

;...do..............

Locality

Near line between sec. 32, T. 51 

N., H. 4 E., and sec. 5, T. 50 N. , 

R. 4 E., 1.1 miles above mouth and 

4 miles north of Prichard, Idaho. 

Near line between sec. 13, T. 45 N., 

R. 5 E., and sec. 18, T. 45 N. , R. 

6 E., 2.6 miles above North Pork 

and 2^ miles southeast of Avery, 

Idaho.

miles above mouth and 1 mile 

northeast of Avery, Idaho. 

SE£ sec. 11, T. 28 N., R. 43 E., 

1,000 feet above railroad brldp-e, 

J mile above Bear Creek, and similes north of Chattaroy, Wash.

NWj sec. 5, T. 26 N. , R. 42 E., 

about 0.6 mile above mouth and 

5} miles west of Dartford, Wasf .

. . . .do. .............................

NWt sec. 30, T. 29 N., R. 44 E.,

Ing and 2 miles northeast of Milan, 

Wash.

NWi sec. 30, T. 29 N. , R. 44 E., 

1,OQO feet above mouth and 2 miles 

northeast of Milan, Wash. 

NW£ sec. 26, T. 30 N., 43 E., 150

feet below road crossing and 

5 miles northwest of Elk, Wash. 

NW| sec. I, T. 29 N., R. 43 E.,

2,000 feet below bridge near 

farmhouse and 3 miles northwest 

of Elk, Wash. 

SEi sec. 13, T. 29 N. , R. 43 E., 150 

feet below road crossing and Is 

miles southwest of Elk, Wash.

SEj sec. 1, T. 29 N., R. 43 E., 31 

feet above road crossing and 1-g 

miles northwest of Elk, Wash. 

NW£ sec. 7, T. 29 N., R. 44 E., 30 

feet above road crossing and Is 

miles northwest of Elk, Wash. 

SE£ sec. 34, T. 31 N., R. 43 E., 

at road crossing, 9 miles northwest of Elk, Wash. 

NE£ sec. 22, T. 29 N. , R: 43 E. , 

250 feet below road crossing and 

3i miles southwest of Elk, Wash.

.... do ..............................

NWj sec. 17, T. 30 N. , R. 44 E., 50 

feet above road crossing and 

6 miles north of Elk, Wash.

NW£ sec. 3, T. 28 N. , R. 43 E., 400

feet above road crossing, 5 miles 

north of Chattaroy, Wash.

road crossing, i mile above mouth 

and 3 miles north of Chattaroy, Wash.

NEi sec. 20, T. 28 N.; R. 44 E., 150 

feet above Little Deer Creek, and4j 

miles northeast of Chattaroy, Wash

SWi sec. 26, T. 28 N., R. 43 E., 

1,500 feet below road crossing, and 

1 mile east of Chattaroy, Wash.

-Discharge 

sec. -ft.)

bl,560 

13,400

b3,500

153 

103

462 

462

739

452

412

421

6.44

4.42

3.40

3.10

2.62

2.84

4.54

.87

4.76

8.77 

8.18

8.11

8.58

.53 

.28 

a9 

117 

54.4

38.2

30.2

J.3 O

21.7

.76 

.68

2.73

1.97

1.92

1.99

1.90

1.68

1.24

1.13

1.26

1.20

1.52 

1.61

9.68

b Computed by slope-area method.
MISCELLANEOUS DISCHARGE MEASUREMENTS 351

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

Elver Basin during water year October 1947 to September 1948 Continued

Spokane River Basin Continued

Date

July 26

Aug. 31

Aug. 31 

Sept. 1 

20

July 13 

28

30

July 12

21

21

1 

1

1 

Aug. 30

Aug. 30

Aug. 30

20

20

July 30

July 12

27

Stream

Deer Creek. ........

Little Deer Creek..

....do.............

Cottonwood Creek...

Dragoon Creek. .....

... .do.. ...........

.. ..do..............

(3 channels)

do

. .. .do. ............

Ecks Creek. ........ 

Unnamed stream. ....

West Branch Dragoon 

Creek.

... .do. ............

Unnamed stream. ....

.... do ..............

Tributary to or 

diverting from 

Little Spokane River

Deer Creek. .........

Little Deer Creek, . .

Little Spokane River

... .do. .............

do

.... do .............. 

... .do. ............. 

. .. .do. .............

.... do ..............

.... do ..............

Dragoon Creek. ......

... .do. .............

Locality

SWj sec. 26, T. 28 N. , R. 43 E.,

1 mile east of Chattaroy, Wash.

do

NWi sec. 21, T. 28 N., R. 44 E., 10 

feet above Cottonwood Creek and 4s 

miles northeast of Chattaroy, Wash.

NE-J sec. 20, T. 28 N., R. 44 E., 80 

feet above mouth and 4i miles 

northeast of Chattaroy, Wash. 

NWi sec. 21, T. 28 N. , R. 44 E., at 

mouth, 4i miles northeast of 

Chattaroy, Wash.

SW£ sec. 9, T. 29 N., R. 42 E., 200 

feet above road crossing and 5 

miles northwest of Deer Park, Wash.

feet below road crossing and 

5 miles south of Deer Park, Wash.

SE-J sec. 33, T. 28 N., R. 43 E., at 

road crossing £ mile above mcuth 

and lj miles southwest of Chfttaroy, Wash.

feet above road crossing and 

5 miles northwest of Deer Park, 

Wash. 

SEj- CEC. 17, T. 29 N., R. 42 E., 4i 

miles northwest of Deer Park, 

Wash. 

NE£ sec. 20, T. 29 N., R. 42 E., 

4 miles northwest of Deer Park, 

Wash. 

NW£ sec. 15, 1. 29 N., R. 42 E., 

4 miles north of Deer Park, V'ash. 

SE£ sec. 34, T. 29 N., R. 42 E., at 

road crossing, \ mile northwest 

of Deer Park, Wash.

E., at road crossing, 1 mile southwest of Deer Park, Wash.

NWi sec. 22, T. 28 N., R. 42 E. , 250 

feet below road crossing and 3 miles 

south of Deer Park, Wash.

road crossing, 4 miles south of 

Deer Park, Wash.

500 feet below spring and 6 miles 

south of Deer Park, Wash. 

Near center SW£ sec. 4, T. 27 N., R. 

42 E., at broken bridge, 6 miles 

south of Deer Park, Wash.

N., R. 42 E., 6 miles south of Deer 

Park, Wash.

Grove road crossing, 6 miles south 

of Deer Park, Wash. 

NW£ sec. 3, T. 27 N. , R. 42 E., at 

Wlldrose road crossing, 6 miles 

south of Deer Park, Wash.

SEi sec. 35, T. 28 N. , R. 42 E., 150 

feet below road crossing, 5 miles 

west of Chattaroy, Wash.

Discharge 

(sec. -ft.)

3.52

.33

.42 

a. 02

4.17

33.2

 No flow 

a. 01

a. 01 

2.98

.85

3.98

.18

1,65

1.00

.70

.32

a Estimated.

939922 0-51-24
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper 

River Basin during water year October 1947 to September 1948 Contlrued

Spokane River Basin Continued

Date

Aug. 30

Aug. 31

Aug. 31

20

July 26

31

1 

July 26

July 30

Stream

Unnamed stream. ....

Middle Pork Deep 

Creek.

South Pork Deep 

Creek.

do

Unnamed stream. ....

Peone Creek. .......

Unnamed stream. .... 

Sheep Creek. .......

do

Tributary to or 

diverting from 

Dragoon Creek. ......

do

Deep Creek. .........

do

Deadman Creek. ......

.. . .do. .............

do

... .do. .............

Little Spokane River

do

.... do ..............

Locality

SEi sec. 35, T. 28 N., R. 42 E., 150 

feet below road crossing, 5 miles 

west of Chattaroy, Wash.

do

road crossing, 4 miles west of 

Chattaroy, Wash.

feet below road crossing and 5 

miles east of Chattaroy, Wash.

SWi sec. 34, T. 28 N. , R. 44 E., 75 

feet above road crossing and 

5 miles east of Chattaroy, Wa'Jh.

NWi sec. 3, T. 27 N., R. 44 E., 200 

feet above road crossing and 5-J 

miles east of Chattaroy, Wash.

old private road crossing, 4 miles 

northeast of Colbert, Wash.

200 feet below road crossing, 65 

'miles east of Mead, Wash.

feet above bridge, 4i miles northeast of Mead, Wash.

road crossing, 1 mile north of 

Mead, Wash.

NW-j- sec. 26, T. 27 N., R. "44 E., at 

road crossing, 7i miles northeast 

of Mead, Wash.

road crossing, 7j miles northeast 

of Mead, Wash. 

NEi sec. 8, T. 26 N., R. 44 E., 50 

feet above road crossing and 

4 miles east of Mead, Wash.

SEi sec. 36, T. 27 N. , R. 43 E., at 

road crossing, 2i miles northeast 

of Mead, Wash. 

NEi sec. 31, T. 27 N. r -K. 43 E., 

1.6 miles above mouth -and 1.6 

miles north of Dartford, Wash.

do

NEi sec. 6, T. 26 N., R. 43 E., 100 

feet above mouth, at Dartford. 

Wash.

Discharge 

(sec. -ft.)

0.32

.41

.28

.28

.28

.10

.52

10.6

3.68

22.8

3.07

No flow

.46

.35

.07

.04

No flow 

1.36 

1.50

1.28

1.34

a Estimated.

Sanpoil River Basin, Wash.

About

June 1

1

1

Sanpoil River. .....

West Pork Sanpoil

River.

.... do ............

Columbia River. .....

Sanpoil River. ......

... .do. .............

NEi sec. 29, T. 30 N., R. 33 E., at

bridge at Keller.

NEi sec. 2, T. 34 N., R. 31 E., 325

feet below north boundary of Colville Indian Reservation, 6j miles

southeast of Aneas.

SWi sec. 11, T. 34 N. , E. 32 E.,

Just upstream from highway bridge

at West Fork.

c3,290

b748

b879

b Computed by slope-area 

c Computed by contractedmethod . 

opening method.

Okanogan River Basin, Wash.

May

b

28 Sinlahekli

Computed by si

i Creek.

3pe-area

Palmer Lake ..........

1

Sec. 12, T. 38

feet above fc

Reader ranch,

method. Loomis.

N.,

ot

1.

R. 25

bridge

6 miles

E., 150

on John

south of

b2,020
MISCELLANEOUS DISCHARGE MEASUREMENTS 363

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper 

Hiver Basin during water year October 1947 to September 1948 Continued

Okanogan River Basin, Wash. Continued

Date

Oct. 3

About 

May 28

Oct. 3 

3

3

3

May 28 

28

May 30

§tream

Toats Coulee Creek. 

.... do .............

Whitestone Irrigation District 

diversion. 

Whitestone Irrigation ditch.

gation District 

diversion. 

.. ..do. ............

....do.............

Salmon Creek. ...... 

.... do .............

.... do .............

Tributary to or 

diverting from 

Sinlahekin Creek. . . . 

... .do. .............

Toats Coulee. ....... 

Spectacle Lake. .....

.... do ..............

Okanogan River. ..... 

.... do ..............

.... do ..............

Locality

SEi sec. 33, T. 39 N., R. 25 E., 

1,000 feet above intake of Whitestone Irrigatipn District flume 

and 2 miles northwest of Looiris. 

SEi sec. 33, T. 39 N. , R. 25 E., 

about 5,000 feet below former 

gaging station near Loomis, l4 

miles northwest of Loomis. 

SWi sec. 3, T. 39 N., R. 25 E., 100 

feet below intake and 2 milee 

northwest of Loomis. 

SWiSWi sec. 1, T. 38 H. , R. 26 E., 

100 feet below tunnel and 5 riles 

east of Loomis .

500 feet below tunnel and 5 miles 

east of Loomis.

50 feet above road crossing and 

5 miles east of Loomis. 

SWi sec. I, T. 38 H. , R.^26 E., at 

middle of big loop, 5-J 'miles east 

of Loomis.

50 feet below road crossing and 

5-| miles east of Loomis .

at end of concrete lining, 5-f 

miles east of Loomis. 

NEi sec. 25, T. 36 H., R. 24 E., 

at old ford, 1.8 miles north of 

Coneonully. 

SEi sec. 18, T. 35 H. , R. 25 E.,

2 miles south of Coneonully.

2 miles north of Okanogan. 

NEi sec. 17, T. 33 H. , R. 26 E., 

at Okanogan.

Discharge 

(sec. -ft.)

7.70 

b6,010

5.53 

12.9

13.0

b3,020 

b782

b735

b Computed by slope-area method.

Methow River Basin, Wash.

May 28

29 

29 

29

29 

29

Methow River. ......

.... do ............. 

Chewack Creek. .....

Twisp River. ....... 

Rainy Creek. .......

Columbia River. .....

.... do .............. 

Methow River. .......

.... do ..............

South Fork Gold 

Creek.

At bridge i mile above Robinson 

Creek, if miles northwest of 

Ventura, and 8 miles northwest 

of Mazama.

1 mile below highway bridge and 

1-f miles south of Winthrop. 

Hi sec. 28, T. 30 H. , R. 23 E., 

3 miles northwest of Pateros 

and 4 miles above mouth. 

SWi sec. 24, T. 36 N., R. 21 E., 

Just below Elghtmile Creek, 

8-| miles north of Winthrop.

at bridge at Winthrop. 

SEi sec. 7, T. 33 H. , R. 22 E., 

at bridge at Twisp. 

i mile above mouth and 8 mile? 

west of Methow.

b4,130 

b35,000

b46,700 

b!9,100 

c!8,100

c9,440 

b20,000

b Computed by slope-area method.

c Computed by contracted-opening method.

Chelan River Basin, Wash.

About

May 29

About 

May 29

Prince Creek. ......

Twenty-five Mile 

Creek.

Lake Chelan. ........

.... do ..............

Sec. 28, T. 31 H. , R. 19 E. , about

1 mile above mouth and 6 miles

southeast of Lucerne.

n

sec. 30, T. 29 H. , R. 21 E., 

mile above mouth and 14 miles

northwest of Chelan.

b24,700

bl,180

b Computed by slope-area method.

Entiat River Basin, Wash.

May 29 

29

May or 

June

Entiat River. ...... 

...rdo.. ...........

Mad River. .........

Columbia River. ..... 

.... do ..............

Entiat River. .......

NWi sec. 29, T. 28 N., R. 19 E., at 

old camp at Burns Creek, 2 miles 

northwest of Brief. 

Sec. 18, T. 25 H., R. 21 E. , 300

1 mile west of Entiat.

SEi sec. 19, T. 26 H., R. 20 E., 

about 1 mile above mouth ani 

west of Ardenvoir.

be7,260 

f 10, 800

bcel,550

b Computed by slope-area method, 

c Computed by contracted-opening method, 

e Computed by critical-depth method, 

f Computed by conveyance-slope method.
354 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper 

River Basin during water year October 1947 to September 1948 Continued

Pine Canyon Creek Basin, Wash.

Date

June 10

10

Stream

Pine Canyon Creek. .

South .Fork Pine 

Canyon Creek.

Tributary to or 

diverting from--

Columbla River. ..... 

Pine Canyon Creek...

Locality

SW-J- sec. 8, T. 25 N., R. 22 E., at 

former gaging station, 2^ miles 

northwest of Watervllle. 

NW-J- see. 25, T. 25 N., R. 21 E., 

3 miles southwest of Watervllle.

Discharge 

Csee.-ft.)

be 5, 350 

be 25, 000

b Computed by slope-area method.

e Computed by critical-depth method.

Wenatehee River Basin, Wash.

May 28

28

28

29

28

31

28

Little Wenatehee

River.

Wenatehee River....

Nason Creek. .......

Phelps Creek. ......

Peshastln Creek. . . .

.... do .............

Mission Creek. .....

Wenatehee Lake. .....

Columbia River. .....

Wenatehee River. ....

Chlwawa River .......

Wenatehee River.....

... .do. .............

. .. .do. .............

At Lake Creek Camp, about 11 miles

above mouth and northwest of

Telma.

SE£ sec. 32, T. 24 N. , R. 19 E.,

Just below highway bridge, 1 mile

above Cashmere.

Center sec. 9, T. 26 N., R. 17 E.,

3 miles west of Plain.

SWi sec. 22, T. 30 N., R. 16 E., at

Trinity, 24 miles northwest cf

Plain.

NW-J- see. 12, T. 22 N. , R. 17 E.,

300 feet above highway bridge at

Blewett.

NE£ sec. 29, T. 24 N., R. 18 E.,

2 miles above mouth, and west of

Dryden.

SE£ sec. 8, T. 23 N. , R. 19 E., ij

miles south of Cashmere.

b5,270

b34,600

b5,200

bl,330

b713

1,190

b408

b Computed by slope-area method.

Moses Creek Basin, Wash.

June 10 Douglas Creek. ..... Moses Creek. ........ SWj- sec. 12, T. 24 N. , R. 

3 miles south of Dougla

R. 23 E., at Palisades.

22 E., 

i.

b6,420

b Computed by slope-area method.

Crab Creek Basin, Wash.

May 28 

Nov. 3

June 10

Iron Springs Creek. 

Spring Creek. ......

Ground water. ....... 

Crab Creek. .........

.... do ... i ..........

at former gaging station, 4j 

miles southwest of Coulee Cit^. 

SW-J- sec. 8, T. 21 N. , R. 26 E., 

1 mile west of Ephrata. 

SEj- see. 3, T. 17 N., R. 28 E., 

30 feet below bridge and 9 miles 

south of' Moses Lake. 

.... do .............................

b3,080 

16.7

12.0

b Computed by slope-area method.

Yakima River Basin, Wash.

May 22

Aug. 4 

31 

Apr. 15

June 6 

July 31 

Sept. 8 

May 27

Oct. 29

Dec. 2 

Jan. Z5 

Feb. 24 

Apr. 16 

June 4 

Aug. 2 

Sept. 2 

Oct. 29

Apr. 14 

19 

June 4 

Aug. 2 

Sept. 2 

June 4

Aug. 2 

Sept. 6 

Oct. 29

Dec. 3 

Jan. 24 

e Compi

Kittitas Canal. ....

do

Roza Canal. ........

Rattlesnake Creek. .

City of Yakima 

Municipal diversion.

do

Selah Valley Canal.

Tieton Canal. ......

do

Wapatox power canal 

. . . .do. ............

ted by contracted-op

Right side of Yakima 

River.

do

do

Naehes- River. .......

Left side of Naehes 

River.

do

Right side of Tieton 

River.

Left side of Naehes 

River.

snlng method.

See. 11, T. 20 N. , R. 13 E., at 

headworks near Easton.

NEj-NWi- see. 19, T. 12 N.,- R. 20 E., 

7i miles southeast of Yakima.

NE-t see. 10, T. 15 N. , R. 14 E. 

(unsurveyed) 5i miles southwest 

of Nile. 

NWi sec. 34, T. 15 N., R. 16 E., 

100 to 300 feet below pipe outlet at headworks 6 miles west of 

Naohes .

do

NWi'see. 36, T. 15 N., R. 16 E., 

above all diversions near Nacfes.

Sec. 30, T. 14 N. , R. 15 E., at 

former gaging station near Naehes.

NWi sec. 36, T. 15 N., R. 16 E., at 

headworks, near Naches.

123

1,140 

720 

318

509 

663 

505 

cl,8lO

10.4

10.0 

9.99 

8.55 

5.34 

8.42 

12.5 

12.8 

26.3

54.2 

58.5 

104 

127 

114 

225

329 

334 

548

548 

451
MISCELLANEOUS DISCHARGE MEASUREMENTS 356

Miscellaneous discharge measurements in Pacific slope basins In Washington and upper Columbia 

River Basin during water year October 1947 to September 1948 Continued

Yakima River Basin, Wash.--Continued

Date

Feb. 24

Apr. 19

Apr.- 9

Oct. 17

Apr. 12

Sept. 7

Stream

Wapatox power canal

Union Gap Canal .... 

. . . .do. ............

Hew Reservation 

Canal.

.. ..do.. ............

Old Reservation 

Canal.

Sunnyside Canal. . . .

..-..do.............

Tributary to or 

diverting from 

Left side of Haches 

River.

left side of Yakima 

River.

Right side of Yakima 

River.

Right side of Yakima 

River.

Left side of Yakima 

River.

....do..... .........

Locality

NW£ sec. 36, T. 15 N., R. 16 E., at 

headworks, near Haches.

NEt sec. 17, T. 12 N., R. 19 E., at 

entrance to Union Gap, 1 mile 

south of town of Union Gap. 

.. . .do. .............................

MWt sec. 20, T. 12 N. , R. 19 E., at 

gaging station near Parker.

SWt sec. 28, T. 12 N. , R. 19 E., at 

gaging station near Parker.

SWi sec. 27, T. 12 N. , R. 19 E., et 

gaging station near Parker.

....do. .............................

Discharge 

( sec . -ft . )

500

26.6 

30.0

368

1,970

7.41

.71

899

1,310

1,160
Page 

Aberdeen, Wash., Charlies Creek near... 21

Newskah Creek near................... 20

Wynoochee River near................. 37

Accuracy of field data arid computed

results..........................

Acre-foot, definition of...............

Agencies other than Geological Survey, 

records collected by.............

Ahtanum Creek , North Fork, near

Tampico, Wash.................... 340

South Fork, at Conrad Ranch, near

Tampico, Wash.................... 341

Alder Creek near Hamilton, Wash........ 176

Alder Reservoir at Alder, Wash......... 73

Alderton, Wash., Puyallup River at..... 84

American River near Nile, Wash......... 337

Anderson Creek at Goshen, Wash......... 190

discharge measurements of............ 345

Arlington, Wash., Jim Creek near....... 154

North Fork Stillaguamish River near.. 155

South Fork Stillaguamish River near.. 152 

Ashley Creek near Kalispell, Mont...... 265

Auburn, Wash., Big Soos Creek near..... 104

Green River near..................... 97

Austin Creek near Bellingham, Wash..... 183

Bacon Creek near Marblemount, Wash..... 169

Baker River at Concrete, Wash.......... 174

Bear Creek (tributary to Bitterroot

River) near Victor, Mont......... 251

"Bear Creek (tributary to Green River)

near Eagle Gorge, Wash........... 102

Bear Creek (tributary to Little Spokane 

River), Wash., discharge measurements of......................... 350

Bear Creek (tributary to Middle Fork

Flathead River) near Essex, Mont. 260

Bear Creek (tributary to Sammish River)

at Redmond, Wash................. 121

near Redmond, Wash................... 120

Bear Creek (tributary to Union River) ,

Wash., discharge measurement of.. 342

Bear River, Wash., discharge measurement of.......................... 342

Beaver Creek (tributary to Dragoon

Creek), Wash., discharge measurements of......................... 351

Beaver Creek (tributary to Skagit

River), near Newhalem, Wash...... - 164

Beckler River near Skykomish, Wash..... 128

Belfair, Wash., Mission Creek near..... 58

Tahuya River near.................... 60

Union River near..................... 55

Bellingham, Wash., Austin Creek near... 183 

Squalicum Creek at................... 183

Whatcom Creek near................... 182

Bells Creek, Wash., discharge measurements of......................... 345

Bertrand Creek, Wash., discharge

measurements of.................. 345

near Lynden, Wash.................... 191

Big Creek (tributary to Clark Fork),

Mont., discharge measurement of.. 349

Big Creek (tributary to Coeur d'Alene

River), Idaho, discharge measurement of.......................... 350

Bigfork, Mont., Swan River near........ 266

Big Soos Creek above Jenkins Creek,

near Auburn, Wash................ 104

Bingham Creek near Matlock, Wash....... 36

Birchbank, British Columbia, Columbia

River at......................... 195

Bitterroot River, East Fork, at Conner,

Mont............................. 246

near Darby, Mont..................... 245

West Fork, near Conner, Mont......... 244

Bitterroot River (West Fork) Reservoir,

Mont., contents of............... 230

Black Diamond, Wash., Green River near. 96 

Newaukum Creek near.................. 103

Black River at Little Rock, Wash....... 31

Page

Black Slough, Wash., discharge measurement of.......................... 345

Blackfoot River near Bonner, Mont...... 241

near ffelmville, Mont................. 239

near Ovando, Mont.................... 240

North Fork, Mont., discharge measurement of.......................... 348

Blackjack Creek at Port Orchard, Wash.. 68 

Blaine, Wash., Dakota Creek near....... 193

Blodgett Creek near Corvallis, Mont.... 249

Blue Lake near Coulee City, Wash....... 322

Boistfort, Wash., South Fork Chehalis

River at......................... 26

Bone Creek, Wash., discharge measurement of.......................... 346

Bonner, Mont., Blackfoot River near.... 241

Bonners Ferry, Idaho, Kootenai River

at..............................204-205

Kootenai River near.............203,206,207

Bothell, Wash., McAleer Creek rear..... 123

North Creek near..................... 122

Sammamish River at................... 119

Boulder Creek (Kootenai River lasin)

near Leonia, Idaho............... 215

Boulder Creek (Nooksack River Basin),

Wash., discharge measurement of.. 344 

Boulder Creek (Pend Oreille River Basin)

at Maxville, Mont................ 237

Boundary Creek near Porthill, Idaho.... 221

Breckenridge Creek, Wash., discharge

measurements of.................. 346

Bremerton, Wash., Chico Creek near..... 66

Gold Creek near...................... 61

Kitsap Lake near..................... 65

Mission Creek near................... 57

Mission Lake near.................... 56

Panther Creek near................... 62

Panther Lake near.................... 61

Tahuya River near.................... 59

Union River near. ..................... 54

Wildcat Lake near.................... 67

Brinnon, Wash., Dosewallips River near. 47 

Duckabush River near................. 48

Buckley, Wash., Mud Mountain Reservoir

near. ............................ 89

White River near..................... 90

Bull River, Mont., discharge measurement of.......................... 349

Bumping Lake, Wash., contents of......330-331

Bumping River near Nile, Wash.......... 336

Burley Creek at Burley, Wash........... 69

Burlington, Wash., Friday Creek near... 181 

Samish River near.................... 180

Burnt Fork Creek near Stevensville,

Mont............................. 252

Calder, Idaho, St. Joe River at........ 285

California Creek, Wash., discharge

measurements of.................. 346

Camas Reservoirs, Mont., contents of... 230

Canyon Creek (tributary to Middle Fork 

Nooksack River) at Kulshan, 

Wash............................. 188

Canyon Creek (tributary to Noo'tsack

River), Wash., discharge measurement of.......................... 344

Canyon Creek (tributary to Rub;r-Creek),

Wash., discharge measureTients of. 343

Carbon River near Fairfax, WasX....... 87

Carpenter Creek, Wash., discharge

measurement of................... 344

Cascade River at Marblemount, Wash..... 170

Cataldo, Idaho, Coeur d'Alene River

near............................. 277

Cedar Falls, Wash., Cedar Rive" at..... 108

Cedar River near.................... 106,107

Rex River near. ....................... 112

Cedar River at Cedar Falls, Wa<*h....... 108

at Renton, Wash...................... 110

below Bear Creek, near Cedar Falls,

Wash........................... 106

357
358 INDEX

Page 

Cedar River near Cedar Falls, Wash..... 107

near Landsberg, Wash................. 109

North Fork, near Lester, Wash........ 105

South Fork, near Lester, Wash........ Ill

Cedarville, Wash., Rock Creek at....... 32

Centralia, Wash., Skookumchuck River

near............................. 29

Centralia power canal, Wash., discharge

measurements of.................. 343

Chambers Creek below Leach Creek, near

Steilacoom, Wash. ................. 81

Charley Creek near Eagle Gorge, Wash... 101 

Charlies Creek near Aberdeen, Wash..... 21

Chattaroy, Wash., Little Spokane River

at............................... 295

Chehalis, Wash., Newaukum River near... 28 

Chehalis River at South Elma, Wash..... 24

near Do ty, Wash...................... 22

near Grand Mound, Wash............... 23

South Fork at Boistfort, Wash........ 26

Chehalis River Basin, Wash. , gagingstation records in............... 22-38

Chelan, Wash., Chelan River at......... 307

Lake Chelan at....................... 306

Chelan River at Chelan, Wash........... 307

Chelan River Basin, Wash., discharge

measurements in.................. 353

gaging-station records in...........305-308

Cherry Creek near Duvall, Wash......... 143

Chewack Creek, Wash., discharge measurements of......................... 353

Chewelah Creek, Wash., discharge

measurement of................... 349

South Fork, Wash., discharge measurement of.......................... 349

Chico Creek near Bremerton, Wash....... 66

Chico Creek Basin, Wash., discharge

measurements in.................. 342

gaging-station records in............ 65-67

Chiwawa River near Plain, Wash......... 313

Chuckanut Creek, Wash., discharge

measurements of.................. 343

Clark Creek at Puyallup, Wash.......... 93

discharge measurements of............ 343

Clark Fork above Missoula, Mont........ 222

at St. Regis, Mont................... 225

at Tarkio, Mont...................... 224

below Missoula, Mont................. 223

discharge measurement of............. 347

near Heron, Mont. ....... ....'......... 227

near Plains, Mont.................... 2261

Cle Elum, Wash., Teanaway River near... 334 

Yakima River at...................... 325

Cle Elum Lake, Wash., contents of.....330-331

Cle Elum River near Roslyn, Wash....... 333

Clear Lake, Wash., East Fork Nookachamps Creek near................ 179

Clearwater, Wash., Clearwater River

near............................. 42

Queets River near.................... 41

Clearwater River (Pend Oreille River

Basin), Mont., discharge measurement of.......................... 348

Clearwater River (-Queets River Basin)

near Clearwater, Wash............ 42

Cloquallum River at Eltna, Wash. ........ 34

Coal Creek (tributary to Nooksack

River), Wash., discharge measurement of.......................... 344

near Kendall, Wash................... 187

Coal Creek (tributary to Skagit River)

near Sedro Woolley, Wash......... 178

Coeur d'Alene Lake at Coeur d'Alene,

Idaho............................ 278

Coeur d'Alene River at Enaville, Idaho. 276 

near Cataldo, Idaho.................. 277

near Prichard, Idaho................. 2 75

Colbert, Wash., Deep Creek at.......... 298

Cold Snow Creek, Wash., discharge

measurement of................... 350

Columbia Falls, Mont., Flathead River

at............................... 255

Flathead River near.................. 254

South Pork, Flathead River near....:". 262

Columbia River at Birchbank, British

Columbia......................... 195

at Grand Coulee Dam, Wash............ 198

at international boundary............ 196

Page 

olumbia River at Trinidad, Wasr.......3, 199

Columbia River main stem, British

Columbia-Wash., gaging-station

records on...................... 195-199

Colville, Wash., Mill Creek near....... 274

Colville River at Kettle Falls, Wash... 273 

Colville River Basin, Wash., discharge

measurements in.................. 349

gaging-station records in...........273-274

Como Lake, Mont., contents of.......... 230

Computations, accuracy of results of... 5 

Concrete, Wash., Baker River at........ 174

Finney Creek near.................... 175

Skagit River near.................... 160

Conner, Mont., East Fork Bitterroot

River at......................... 246

West Fork Bitterroot River ne?r...... 244

Contents, definition of................ 2

Control, definition of................. 1

Coolin, Idaho, Priest Lake near........ 267

Priest River near.................... 268

Cooperation, record of................. 12

Copeland, Idaho, Kootenai River near..208-209 

Corvallis, Mont., Blodgett Greet near.. 249 

Cosmopolis, Wash., Little North River

near............................. 19

Cottonwood Creek, Wash., discharge

measurements of.................. 351

Coulee City, Wash., Blue Lake near..... 322

Park Creek near...................... 321

Park Lake near....................... 320

Crab Creek at Irby, Wash............... 315

near Moses Lake, Wash................ 316

near Smyrna, Wash.................... 319

near Warden, Wash.................... 318

Crab CPPPU- Basin, Wash., discharge

measurements in.................. 354

gaging-station records in...........315-323

Cranberry Creek, Wash., discharge

measurements of.................. 342

Curlew Creek, Wash., discharge measurement of.......................... 349

Dakota Creek near Blaine, Wash......... 193

North Fork, Wash., discharge measurements of......................... 346

South Fork, discharge measurement of 346 

Darby, Mont., Bitterroot River rear.... 245

Rock Creek near...................... 247

Rock Cr, eek Canal near................ 248

Darrington, Wash., Sauk River near..... 171

Dartford, Wash., Little Spokane River

at. .............................. 296

Little Spokane River near............ 297

Data, accuracy of...................... 5

explanation of....................... 2-4

Day Creek near Lyman, Wash............. 177

Deadman Creek, Wash., discharge measurements of......................... 352

Deep Creek (tributary to Kootensi River)

at Moravia, Idaho................ 218

Deep Creek (tributary to Little Spokane

River) at Colbert, Wash.......... 298

discharge measurements of............ 352

Middle Fork, Wash., discharge

measurements of.................. 352

South Fork, Wash., discharge ireasurement of.......................... 352

Deer Creek (Minter Creek Basin), Wash.,

discharge measurements of........ 342

Deer Creek (Nooksack River Basir), Wash.,

discharge measurements of........ 345

Deer Creek (Spokane River Basin), Wash.,

discharge measurement of........350-351

Deer Horn Creek, Wash., discharge

measurement of................... 344

Deer Park, Wash., Wethey Creek near.... 298

Deming, Wash., Nooksack River at....... 185

Deschutes River near Olympia, Wash..... 71

Dewatto Creek near Dewatto, Wash....... 63

Diablo Reservoir, Wash., contents of... 162 

Dogfish Creek near Poulsbo, Wash....... 64

Dosewallips River near Brinnon, Wash... 47 

Doty, Wash., Chehalis River near....... 22

Elk Creek near....................... 25

Douglas Creek, Mort., discharge

measurements of.................347-348

Douglas Creek, Wash., discharge

measurements of.................. 354
359

Page 

Double Ditch Creek, East Branch,

Wash., discharge measurements of. 345 

West Branch, Wash., discharge

measurements of.................. 345

Dragoon Creek, Wash., discharge

measurements of.................. 351

West Branch, Wash., discharge1

measurements of.................. 351

Drummond, Mont., Flint Creek near...... 234

Dry Creek, Wash., discharge measurement of.......................... 350

Dubuque Creek near Lake Stevens, Wash.. 148 

Duckabush River near Brlnnon, Wash..... 48

Dungeness River near Sequlm, Wash...... 46

Duvall, Wash., Cherry Creek near....... 143

Duwamlsh River Basin, Wash., gaglngstatlon records In...............94-104

Friday Creek (Duwamish River Basin)

Eagle Gorge, Wash., Bear Creek near....

Charley Creek near...................

Easton, Waeh., Kachess River near......

Eastport, Idaho, Moyle River at........

Eatonvllle, Wash., Ohop Creek near.....

Ecks Creek, Wash., discharge measurement of..........................

Elleen, Idaho, Moyle River at..........

Electron, Wash., Puyallup River 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...............

Enavllle, Idaho, Coeur d'Alene River at 

Entlat River, Wash., discharge measurements of.........................

Entlat River Basin, Wash., discharge

measurements of............ ( .....

Ephrata, Wash., Rocky Ford Creek near.. 

Essex, Mont., Bear Creek near..........

Middle Fork Flathead River at........

Skyland Creek near...................

Everett, Wash., Wood Creek near........

Fairfax, Wash., Carbon River near......

Falrholm, Wash., Soleduck River near...

Fall City, Wash., Patterson Creek near. 

Raging River near....................

Ferndale, Wash., Tenmile Creek near....

Ferry, Wash., Kettle River near. .......

Fingalson Creek, Wash., discharge

measurement of...................

Finn, Mont., Nevada Creek near.........

Flnney Creek near Concrete, Wash.......

Fish Creek, Mont., discharge measurement of..........................

Fish Hatchery Creek, Wash., discharge

102

101

332

216

79

351

217

82

294

45

276

353

353 

323 

260 

258 

261

149 Hayden Creek below North Fork, near 

Hayden Lake, Idaho.

140

139

192

270

346

242

348

measurement of................... 343 Hiietter, Idaho, Rathdrum Prairie Canal

Fisher River, Mont., discharge measurement of...........................

Fishtrap Creek at Lynden, Wash.........

discharge measurements of............

Flathead Lake at Somers, Mont..........

Flathead River at Columbia Falls, Mont, 

at Flathead, British Columbia.^.......

Flathead River, Middle Fork, near West 

Glacier, Mont....................

at Essex, Mont.....................

near Columbia Falls, Mont............

near Poison, Mont....................

South Fork, discharge measurement of. 

near Columbia Falls, Mont..........

Flint Creek at Maxville, Mont..........

near Drummond, Mont..................

near Maxville, Mont...................

near Southern Cross, Mont............

Floods, special reports on.............

Flower Creek, Mont., discharge measurement of..........................

Fortlne Creek near Trego, Mont.........

Fourmile Creek, Wash., discharge

measurement of...................

Franklin D. Roosevelt Lake at Grand

Coulee Dam. Wash.................

Fraser River Basin, Wash., discharge

measurements in..................

Frazier River Basin, Wash., gagingstation records in.............. 193-194

Fred Burr Creek near Victor, Mont...... 250

near Lester, Wash.

Friday Creek (Samish River Ba^ln) near

Burlington, Wash.

Gallopp Creek, Wash., discharge measurement of.

Georgetown Lake, Mont., contents of....

Glacier, Wash., Nooksack River near....

old Bar, Wash., Olney Creek near......

Skykomlsh River near.................

Wallace River at......................

Gold Creek near Bremerton, Wash........

Goodwin ditch, Wash., discharge

measurements of..................

Goshen, Wash., Anderson Creek, at.......

Irand Coulee Dam, Wash., Columbia River 

at. ...............................

Franklin D. Roosevelt Lake at.........

Grand Mound, Wash., Chehalis River near 

Granite Creek {Kootenay River Basin),

Granite Creek (Skagit River Easin),

Wash., discharge measurement of., 

near Newhalem, Wash..................

Granite Falls, Wash., Pilchuck River

near.............................

South Fork Stillaguamish River near.. 

Graves Creek, Mont-., discharge measurement of..........................

Jreen River'near Auburn,j Wash..........

near Black Diamond, Wash.............

near Les ter, Wash....................

near Palmer, Wash.

Greenacres, Wash., Spokane River at....

Greenwater, Wash., Greenwater-River at. 

White River at.......................

Greenwater River at Greenwater, Wash... 

Griffin Creek near Tolt, Wasl ..........

Hamilton, Wash., Alder Creek near.

near Hayden Lake, Idaho..............

Hayden Lake at Hayden Lake, Idaho......

Hayden Lake Irrigation District diversion near Hayden Lake, Idaho.. 

Helmville, Mont., Blackfoot Fiver near. 

Nevada Creek near.....................

Heron, Mon't., Clark Fork near:.........

Hoh River near Spruce, Wash. .....'......

Hoodsport, Wash., North Fork Skokomish

River near.

Hope, British Columbia, Skagit River

near..

Hope, Idaho', Pend Oreille Lake at.

at.

Humptulips River near Humptullps, Wash. 

Hutchinson Creek, Wash., discharge

measurement of.

Icicle Creek above Snow Creek, near 

Leavenworth, Wash.

Index, 'Wash., North Fork Skykomish

River at.........................

South Fork Skykomish River near......

Indian Creek, Idaho, discharge measurement of.

347 Huge Creek near Wauna, Wash.

191

345

256

255

253

259

258

254

257

348

262

232

234

233

231

11

347

213

345

197

346

Irby, Wash., Crab Creek at...........

Iron Springs Creek, Wash., discharge

measurement of.

Issaquah Creek near Issaquah, Wash.....

Jim Creek near Arlington, Wash.........

near Oso, Wash.......................

Jocko River, Mont., discharge measure-.

ment of.

Johns Creek, Wash., discharge measurements of....'.....................

Johnson Creek, Wash., discharge

measurements of..................

West Branch,-Wash., discharge

measurements of......-...........'.,

Jones Creek, Wash., discharge measurement of..........................

99

181

344

230

184

131

126

130

61

346

190

198

197

23

Mont., discharge measurement of.. 347

343

166

144

151

349

97

96

94

95

280

92

88

92

141

176

287

288 

 289

290

239

243

227

43

49

156

228

291

70

39

345

314

129

125

349

315

354

116

154

153

349

342

346

346

345
360 INPEX

Page 

Kachess Lake, Wash., contents of......330-331

Kaohess River near Easton, Wash........ 332

Kalispell, Mont., Ashley Creek near.... 265

Whitefish Creek near................. 264

Kapowsin Creek near Kapowsin, Wash..... 86

Keechelus Lake, Wash., contents of....330-331

Kendall, Wash., Coal Creek near.

Kendall Creek at Kendall, Wash.

Kettle Falls, Wash., Colville River at.

187

187

27

Kettle River near Ferry, Wash.......... 270

near Laurier, Wash. ................... 271

Kettle River Basin, Wash., gagingstation records in..............270-272

Kinney Creek, Wash., discharge measurement of.......................... 346

Kiona, Wash., Yakima River at.......... 329

Kitsap Lake near Bremerton, Wash....... 65

Kitsap Lake Outlet, Wash., discharge

measurements of.................. 342

Kittitas Canal, Wash., discharge

measurements of.................. 354

Kootenai Creek, Mont., discharge

measurement of................... 348

Kootenai River at Bonners Perry,

Idaho...........................204-205

at Boom Camp, near Bonners Perry,

Idaho............................ 203

at Klockmann Ranch, near Bonners

Ferry, Idaho..................... 207

at Leonla, Idaho..................:.. 202

at Libby, Mont....................... 201

at Newgate, British Columbia.......... 200

at Porthill, Idaho..................210-211

discharge measurements of............ 347

near Bonners Perry, Idaho............ 206

near Copeland, Idaho................ 208-209

Kootenai River Basin, British Columb'iaIdaho-Mont., discharge measurements in......................... 347

gaging-station records in...........200-221

Kootenay Lake at Kuskonook, British

Columbia......................... 212

Kulsham, Wash., Canyon Creek at........ 188

Kuskonook, British Columbia, Kootenay

Lake at.......................... 212

La Grande, Wash., Mashel River near.... 78

Nisqually River at................... 74

Lake Chelan at Chelan, Wash............ 306

Lake Creek at Troy, Mont............... 214

Lake Shannon, Wash., contents of....... 162

Lake Stevens at Lake Stevens, Wash..... 146

Dubuque Creek near................... 148

Little Pilchuck Creek near........... 145

Stevens Creek at..................... 147

Lake Washington Basin, Wash., gagingstation records in..............105-123

Landsberg, Wash., Cedar River near..... 109

Rock Creek near...................... 113

Larrabee Springs, Wash., discharge

measurements of................... 345

Latah Creek at Spokarie, Wash........... 293

Laurier, Wash., Kettle River near...... 271

Leavenworth, Wash., Icicle Creek near.. 314 

Lebam, Wash., Willapa River at......... 16

Lenore Lake near Soap Lake, Wash....... 322

Leonia, Idaho, Boulder Creek near...... 215

Kootenai River at................'.... 202

Lester, Wash., Friday Creek near....... 99

preen River near..................... 94

North Pork Cedar River near.......... 105

Smay Creek near...................... 100

Snow Creek near..-. ................... 98

South Pork Cedar River near.......... Ill

Libby, Mont., Kootenai River at........ 201

Lightning Creek (Pend Oreille River

Basing, Idaho, discharge measurement of.......................... 349

Lightning Creek (Ska'git River Basin),

Wash., discharge measurement of.. 343 

near Newhalem, Wash.................. 163

Lincoln Creek near Rochester, Wash..... 30

Little Blackfoot River, Mont., discharge

measurement of................... 347

Little Deer Creek, Wash., discharge

measurements of.................. 35 ll

Little North River near Cosmopolis,

Wash............................. 19

Page 

Little Pilchuck Creek near Lake

Stevens, Wash.................... 145

Little Rock, Wash., Black River at..... 31

Little Spokane River at Chattaro;r. Wash. 295 

at Dartford, Wash.................... 296

at Elk, Wash.......................... 294

at Milan, Wash....................... 295

at Scotia, Wash...................... 294

discharge measurements of............ 350

near Dartford, Wash.................. 297

West Branch, Wash., discharge

measurements of.................... 350

Little Wenatchee River, Wash., discharge

measurement of................... 354

Lolo Creek, Mont., discharge mersurement of.......................... 348

Long Canyon Creek near Porthill, Idaho. 219 

Long Lake, Wash., Spokane River at..... 284

Lost Horse Creek, Mont., discharge

measurement of................... 348

Lotus, Idaho, St. Maries River at...... 286

Lower Jocko Lake, Mont., contents of... 230 

Lower Twin Creek, Mont., discharge

measurement of................... 348

Lucerne, Wash., Railroad Creek at...... 308

Lyman, Wash. , Day Creek near. ........... 177

Lynden, Wash., Bertrand Creek near..... 191

Fishtrap Creek at.................... 191

Nooksack River near.................. 186

McAjLeer Creek near Bothell, Wash ....... 123

McCarty Creek, Wash.., discharge

measurement of................... 345

McCoy Creek near Sultan, Wash.......... 133

McKenna, Wash., Nisqually River at..... 76

Nisqually River near................. 75

Tanwax Creek near.................... 80

Machias, Wash., Roesiger Creek near...: 135 

Mad River, Wash., discharge meafurement of...........;.............. 353

Mansford, Wash., Suiattle River near.. 173 

Maple Creek, Wash., discharge measurement of.......................... 344

Maple Valley, Wash., Rock Creek near... 114

Marblemount, Wash., Bacon Creek near... 169

Cascade River at..................... 170

Skagit River at...................... 159

Martin, Wash., Yakima River near......'. 324

Marysville, Wash., Quilceda Creek near. 150 

Mashel River near La Grande, Wa?h...... 78

Matlock, Wash., Bingham Creek near..... 36

Maxville, Mont., Boulder Creek ft...... 237

Flint Creek at....................... 232

Flint Creek near..................... 233

May Creek, Wash., near Renton, Wash.... 115

Metaline Falls, Wash., Pend Oreille

River near....................... 229

Methow River at Twisp, Wash............ 304

discharge measurements of............ 353

Methow River Basin, Wash., discharge

measurements in.................. 353

Milan, Wash., Little Spokane River at.. 295 

Mill Creek near Colville, Wash......... 274

Mineral Creek near Mineral, Wash ....... 77

Minter Creek, Wash., discharge

measurements of.................. 342

Minter Creek Basin, Wash., discharge

measurements in.................. 342

Mirror Lake Creek, Wash., dischsrge

measurement of................... 344

Mission'Creek (tributary to Hooc? Canal)

Wash., discharge measurement of.. 342 

near Belfair, Wash................... 58

near Bremerton, Wash................. 57

Mission Creek Basin, Wash., gagingstation records in... '............ 56-58

Mission Creek (tributary to Kootenai

River), Idaho, discharge ireasurement of.......................... 347

Mission Creek (tributary to Wenatchee

River), Wash., discharge ireasurement of........................... 354

Mission Lake near Bremerton, Wash...... 56

Mission Valley Reservoirs, Mont., contents of......................... 230

Missoula, Mont., Clark Pork above...... 222

Clark Fork below..................... 223

MoBfoe, Wash-., Woods Creek near........ 134
INDEX 361

Montesano, Wash., Wynoochee River near, 38 

Moon Creek, Wash., discharge measurements of......................... 350

Moravia, Idaho, Deep Creek at.......... 218

Moses Lake, Wash., Crab Creek near..... 316

Moses Lake at................'........ 317

Moses Lake at Moses Lake, Wash."........ 317

Mount Vernon, Wash., Skagit River near. 161 

Moyie River at Eastport, Idaho ......... 216

at Eileen, Idaho...................... 217

Mud Creek, Wash., discharge measurements of......................... 351

Mud Mountain Reservoir near Buckley,

Wash............................. 89

Myers Creek near Myncaster, British

Columbia......................... 272

Myncaster, British Columbia, Myers

Creek near....................... 272

Naches, Wash., Naches River near....... 335

Tieton River near................... 338,339

Naches River below Tieton River, near

Naches , Wash..................... 335

Naselle River near Naselle, Wash....... 14

Nason Creek, Wash., discharge measurement of.......................... 354

National, Wash., Nisqually River near.. 72 

Nevada Creek above reservoir, near

Finn, Mont....'................... 242

near Helmville , Mont.................. 243

Nevada Creek Reservoir, Mont., contents

of............................... 230

New Reservation Canal,, Wash. , discharge

measurements of. ... .............. 355

Newaukum Creek near Black Diamond, Wash. 103

Newaukum River near Chehalis, Wash..'... 28

near Onalaska, Wash.................. 27

Newgate, British Columbia, Kootenai

River at......................... 200

Newhalem, Wash , Beaver Creek near..... 164

Granite Creek near................... £66

Lightning Creek near................. 163

Ross Reservoir near.................. 157

Ruby Creek near...................... 165

Skagit River at..... ; ................ 158

Stetattle Creek near................. 168

Thunder Creek near................... 167

Newskah Creek near Aberdeen,- Wash. .'.... 20

Nicks Slough, British Columbia, discharge measurement of............ 347

Nighthawk, Wash., Similkameen River

near............................. 303

Nile, Wash., American River near....... 337

Bumping River near................... 336

Ninemile Creek, Mont., discharge

measurement of................... 348

Nisqually River at La Grande, Wash..... 74

at McKenna, Wash..................... 76

near McKenna, Wash................... 75

near National, Wash.................. 72

Nisqually River Basin, Wash., discharge

measurements in.:................ 343

gaging-station records in............ 72-80

Nookachamps Creek, East Pork, near

Clear Lake, Wash................. 179

Nooksack River above Cascade Creek,

near Glacier, Wash............... 184

at Deming, Wash...................... 185

discharge measurements of............ 344

near Lynden, Wash.................... 186

South Fork, near Wlckersham, Wash.... 189

Nooksack River Basin, Wash., discharge

measurements in.................344-345

gaging-station records in..........:184-192

North Bend, Wash., South Fork

Snoqualmie River at.............. 138

North Creek near Bothell, Wash......... 122

North Nemah River near'South Bend,

Wash............................. 15

North River near Raymond, Wash......... 18

North River Basin, Wash., gagingstation records in............... 18-19

Ohop Creek near Eatonville, Wash.. 

Okanagan River at Okanagan Falls, 

British Columbia............

at Oroville, Wash...............

near Tonasket, Wash........_...,

79

299

301

302

Page 

Okanogan River Basin, Wash., discharge

measurements in.................352-353

gaging-station records in...........299-305

Old Reservation Canal, Wash., discharge

measurements of.................. 355

Olyrnpia, Wash., Deschutes River near... 71 

Olney Creek, Wash., discharge measurements of......................... 343

near Gold Bar, Wash.................. 131

Olsen Creek, Wash., discharge measurements of..............i.......... 344

Onalaska, Wash., Newaukum River near... 27 

Oroville, Wash.,' Okanogan River at..... 301

Osoyoos Lake near.................... 300

Orting, Wash., Puyallup River near..... 83

Oso, Wash., Jim Creek near............. 153

soyoos Lake near Oroville, WESh....... 300

Otter Creek, Wash., discharge measurements of......................:.. 350

Ovando, Mont., Blackfoot River near..:.. 240

Palmer, Wash., -Green River near........ 95

Pangborn Lake Creek, Wash., discharge

measurements of.................. 346

Panther Creek near Bremerton, Wash..... 62

Panther Lake near Bremerton, Wash....... 61

Park Creek below Park Lake, near Coulee

City, Wash....................... 321

discharge measurement of............. 354

Park Lake near Coulee City, Wash....... 320

Parker, Wash.,-Yakima River near......327-328

Patterson Creek near Fall Citv, Wash... 140 

Pend Oreille Lake at Hope, Idaho........ 228

Pend Oreille River below Z Canyon, near

Metaline Falls, Wash............. 229

Pend Oreille River Basin, Idaho-Mont.,

discharge measurements in.......347-349

gaging-station, records in...........222-269

smaller reservoirs in................ 230

Peone Creek, Wash., discharge measurements of......................... 352

Peshastin, Wash., Wenatchee River, at... 312 

Peshastin Creek, Wash., discharge

measurements of.................. 354

Phelps Creek, Wash., discharge

measurement of................... 354

Philipsburg, Mont., Middle Fork Rock

Creek near....................... 238

Trout Creek near..................... 235

Pilchuck River near Granite Falls, Wash. 144 

Pine Canyon Creek, Wash., discharge

measurement of................... 354

South Fork, Wash., discharge

measurement of................... 354

Plain, Wash., Chiwawa River rear....... 313

.Wenatchee Lake near.................. 309

Wenatchee River at................... 311

Plains, Mont., Clark Fork nesr......... 226

Poison, Mont., Flathead River near..... 257

Port Angeles, Wash., Elwha River near.. 45

Port Orchard, Wash., Blackjack Creek at 68

Porthill, Idaho, Boundary Creek near... 221

Kootenai River at...................... 210

Long Canyon Creek near............... 219

Smith Creek near..................... 220

Porter Creek at Porter, Wash........... 33

Post Falls, Idaho, Spokane River at.... 279

Spokane Valley Farm Co.'s canal at... 292 

Potlatch, Wash., North Fork Skokomish

River near....................... 50

Skokomish River near................. 51

South Fork Skokomish River near......' 52

Poulsbo, Wash., Dogfish Creek near..... 64

Prichard, Idaho, Coeur d'Alene River

near............................. 275

Priest Lake at outlet, near Coolin,'

Idaho............................ 267

Priest River at outlet of Priest'Lake,

near Coolin, Idaho............... 268

near Priest Riv.er, Idaho............. 269

Prince Creek, Wash., discharge measurement of.......................... 353

Prospect Creek, Mont., discharge

measurement of.................... 349

Publications on stream flowi by

Geological Survey.............. .-6-10,12

by.State agencies.................... 10-11

Puyallup, Wash., Clark Creek at........ 93
362 INDEX

Puyallup, Wash., Puyallup River at.... 

Puyallup River at Alderton, Wash.......

at Puyallup, Wash....................

near Electron, Wash........'..........

near Orting, Wash....................

Puyallup River Basin, Wash., gagingstation records in..............

Queets River near Clearwater, Wash.....

Queets River Basin, Wash., gagingstation records in................

Quilceda Creek near Marysville, Wash... 

Quinault River at Quinault Lake, Wash..

Raging River near Fall City, Wash......

Railroad Creek at Lucerne, Wash........

Rainy Creek, Wash., discharge measurement of..........................

Rathdrum Prairie Canal at'Huetter,

Idaho............................

Rattlesnake Creek (tributary to Clark 

Pork), Mont., discharge measurement of..........................

Rattlesnake Creek (tributary to Naches 

River), Wash., discharge measurement of..........................

Raymond, Wash., North River near.......

Redmond, Wash., Bear Creek at..........

Bear Creek near......................

Sammamish Lake near..................

Sammamish River near.................

Renton, Wash., Cedar' River [at 1 .........

May Creek near.......... T. ...........

Rex River near Cedar Palls, Wash.......

Rochester, Wash., Lincoln Creek near...

Rock Creek (tributary to Bitterroot

River) near Darby, Mont..........

Rock Creek (tributary to Cedar River)

near Landsberg, Wash.............

near Maple Valley, Wash..............

Rock Creek (tributary to Chehalis

River) at Cedarville, Wash.......

Rock Creek (tributary to Clark Pork),

Mont., discharge measurement of..

Rock Creek (tributary to Flint Creek), 

Middle Fork", near Philipsburg, 

Mont.............................

Rock Creek (East Pork) Reservoir, Mont, 

contents of.............:........

Rock-Creek Canal near Darby, Mont......

Rocky Ford Cr«ek near Ephrata, Wash....

Roesiger Cref>k near Machias, Wash..../.

Roslyn, Wash'., Cle Elum River near.....

Ross Reservoir near Newhalem, Wash.....

Roza Canal, Wash., discharge measurements of.........................

Ruby Creek near Newhalem, Wash...I.....

Runoff in inches, definition of........

Page 

85

84

85

82

83

82-93 

41

41-42

150

40

139

308

353

291

348

354

18

121

120

117

118

110

115

112

30

247

113

114

32

347

238

230

248

323

135

333

157

354

165

1

Saar Creek, Wash., discharge measurement of.......................... 346

near Sumas, Wash..'............"....... 194

St. Joe River at Calder, Idaho......... 285

discharge measurement of.............. 350

North Pork, Idaho, discharge measurement of.......................... 350

St. Maries River at Lotus, Idaho....... 286

St. Regis, Mont., Clark Fork at........ 225

discharge measurement of............. 348

Salmon Creek, Wash., discharge

measurements of.................. 353

Samish River near Burlington, Wash..... 180

Samish River Basin,. Wash., gagingstation records in..............180-181

Saamamish Lake near Redmond, Wash...... 117

Sammamish River at Bothell, Wash....... 119

near Redmond, Wash................... 118

Sanpoil River, Wash., discharge

measurement of................... 352

West Pork", Wash., discharge~measurementsof 352 

Satsop River near Satsop, Wash......... 35

Sauk River above Whitechuck River, near

Darrington, Wash................. 171

near Sauk', Wash...................... 172

Scotia, Wash., Little Spokane River at. 294 

Second-feet per square mile, definition

of............................... 1

Second-foot, definition of............. 1

Second-foot-day, definition of......... 1

Sedro Woolley, Wash., Coal Creek near.. 178 

Selah Valley Canal, Wash., discharge

measurements of.................. 354

Sequim, Wash., Dungeness River near.... 46

Sherman Creek, Wash., discharge

measurement of... L1 _................ 349

Sheep Creelc (tributary to ColunfciaRiver),

Wash., discharge measurement of.. 349 

Sheep Creek (tributary to Little Spokane

River), Wash., discharge measurements of 352 

Silver Creek, Wash., discharge measurement of........:... ............. t . 344

Similkameen River near Nightfiawk, Wash. 303 

Sinlahekin Creek, Wash., discharge

measurement of................... 352

Skagit River at 'Marblemount, V'ash. ..... 159

at Newhalem, Wash.................... 158

near Concrete, Wash. .................. 160

near Hope, British Columbia.......... 156

near Mount Vernon, Wash.....:,....... 161

Skagit River Basin, British ColumbiaWash., discharge measurements in. J43 

gaging-stations in.................. 156-179

reservoirs in........................ 162

Skalkaho Creek, Mont., discharge

measurement of................... 348

Skokomish River near Potlatch, Wash.... 51

North Fork, below Staircase Rapids,

near Hoodsport, Wash............. 49

near Potlatch, Wash. ....°........... 50

South Fork, near Potlatch, V'ash...... 52

near Union, Wash.................... 53

Skokomish River Basin,' Wash., gagingstation records in............... 49-53

Skookum Creek near Wickersham, Wash.... 190

Skookumchuck River near Centralia., Wash. 29

Skykomish, Wash., Beckler River near... 128

South Fork Skykomish River rear...... 124

Skykomish River near Gold Bar, Wash.... 126

North Fork, at Index, Wash........... 129

South Pork, near Index, Wash......... 125

near Skykomish, Wash............... 124

Skyland Creek near Essex, Mont......... 261

Slocan River, British Columbia, discharge measurement of............ 347

Smay Creek near Lester, Wash........... 100

Smith Creek (.Kootenai River Basin) near

Porthill, Idaho.................. 220

Smith Creek (Nooksack River Basin),

Wash., discharge measurements of. 345 

Smith Creek (Whafccom Creek Basin),

Wash., discharge measurements of. 344 

Smyrna, Wash., Crab Creek near.......... 319

Snohomish River at Snohomish, Wash..... 127

Snohomish River Basin, Wash., gagingstation records in..............124-150

Snoqualmie Falls, Wash., North Fork

Snoqualmie River near............ 137

Snoqualmie River near Tolt, Wash....... 136

North Fork, -near Snoqualmie Falls,

Wash............................. 137

South Fork, at North Bend, Wash...... 138

Snow Creek near Lester, Wash........... 98

Soap Lake, Wash., Lenore Lake near..... 322

Soap Lake near........................ 322

Soap Lake near Soap Lake, Wash......... 322

Soleduck River near Fairholm, Wash..... 44

Somers, Mont., Flathead Lake at........ 256

South B.end, Wash., North Nemah River

near:............................ 15

South Elma, Wash., Chehalis River at... 24

Southern Cross, Mont., Flint C^-eek near 231

Trout Creek near....................... 236

Spokane, Wash., Latah Creek at......... 293

Spokane River at..................... 282

Spokane River near................... 283

Spokane River at Greenacres, Wash...... 280

at Long Laice, .Wash................... 284

at Post Falls, Idaho................. 279

at Spokane, Wash.......:............. 282

below Nine-Mile Dam, near Spokane,

Wash............................. 283

below Trent Bridge, near Spokane,

Wash............................. 281

Spokane River Basin,'Idaho-Wash.,

gaging-station records in.......275-298
INDEX

Page 

Spokane Valley Farm Co.'s canal at

Post Falls, Idaho................ 292

Spotted Bear River, Mont., discharge

measurement of................... 348

Spring Creek, Wash., discharge measurements of......................... 354

Spruce , Wash., Hoh River near".......... 43

Squalicum Creek at Bellingham, Wash.... 183

discharge measurements of............ 344

Squalicum Creek Basin, Wash., discharge

measurements in.................. 344

Stage-discharge relation, definition of 1 

Startup, Wash., Sultan River near...... 132

Stehekin River at Stehekin, Wash....... 305

Steilacoom, Wash., Chambers Creek near. 81 

Stetattle Creek near Newhalem, Wash ... 168 

Stevens Creek at Lake Stevens, Wash.... 147

Stevensville, Mont., Burnt Fork Creek

near............................. 252

Stillaguamish River, North Fork, near

Arlington, Wash.................. 155

South Fork, above Jim Creek, near

Arlington, Wash.................. 152

near Granite Falls, Wash........... 151

Stillaguamish River Basin, Wash.,

gaglng-station records in.......151-155

Stillwater River near Whitefish, Mont..

Stuck River near Sumner, Wash.........

Suiattle River near Mansford, Wash....

Sullivan Creek, Mont., discharge

meas urement of..................

Sultan, Wash., McCoy Creek near.......

Sultan River near Startup, Wash.......

Sumas, Wash., Saar Creek near.........

Sumas River near....................

Sumas River, Wash., discharge

measurements of.................

near Sumas, Wash....................

Sumner, Wash., Stuck River near.......

Sunnyside Canal, Wash., discharge

measurements of.................

Swan River, Mont.,.discharge measurement of.........................

near Bigfork, Mont..................

263

91

173

348

133

132

194

193

346

193

91

355

349

266

Tahuya River near Belfair, Wash........ 60

near Bremerton, Wash.................. 59

Tahuya River Basin, Wash., gagingstation records in............... 59-62

Tampico, Wash., North Fork Ahtanum

Creek near....................... 340

South Fork Ahtanum Creek near......... 341 Tanwax Creek near McKenna, Wash! '.'.'.'.'.'.'. 80 White River at Greenwater, Waslr

Tarkio, Mont., Clark Fork at........... 224

Teanaway River near Cle Elum, Wash..... 334

Tenmile Creek, Wash., discharge

measurements of.................. 345

near Ferndale, Wash.................. 192

Terms, definition of ................... 1-2

Thomas Creek, Wash., discharge

measurement of................... 342

Thompson Falls Reservoir, Mont., conterits of......................... 230

Thompson River, Mont., discharge

measurement of................... 349

Thunder Creek near Newhalem, Wash...... 167

Tieton Canal, Wash., discharge measurements of......................... 354

at Tieton Dam, near Naches, Wash....

Toad Lake Outlet, Wash., discharge

measurement of..................

Toats Coulee Creek, Wash., discharge 

measurements of.................

Tobacco River, Mont.,, discharge

measurement of..................

Tolt, Wash., Griffin Creek near.......

Snoqualmie River near...............

Tolt River near.....................

Tolt River near Tolt, Wash............

Tonasket, Wash., Okanogan River near.. 

Trego, Mont., Fortine Creek near......

Trout Creek (Fend Orellle River Basin) 

above main canal, near Philipsburg , Mont.

near Southern Cross, Mont.........

Troy, Mont., Lake Creek at..........

Twenty-five Mile Creek, Wash., discharge measurement of

Page

235

236

214

363

Twin Creek, Mont., discharge measurement of................. . 348

Twisp, Wash., Methow River at........... 304

Twisp River, Wash., discharge measurement of.

Umtanum, Wash., Yakima River at.... 

Union, Wash., South Fork Skokomish

'353 

326

River near.

Union Gap Canal, Wash., discharge

measurements of. 355

55

54

Union River near Belfair, Wash......

near Bremerton, Wash..............

Union River Basin, Wash. , gagingstation records in............... 54-55

tipper Columbia River Basin, British 

Columbia-Idaho-Mont.-Wash., 

gaging-station records in.....

Victor, Mont., Bear Creek near. 

Fred Burr Creek near.........

196

251

250

Wallace River at Gold Bar, Wash........ 130

Wapatox power canal, Wash., discharge

measurements of.................354-355

Warden, Wash., Crab Creek near......... 318

ijauna, Wash., Huge Creek near.

rfenatchee Lake near Plain, Wash.

70 

309 

rienatchee River at Peshastin, Wash..... 312

at Plain, Wash....................... 311

below Wenatchee Lake, Wash........... 310

discharge measurement of............. 354

Wenatchee River Basin, Wash., discharge

measurements in.................. 354

gaging-station records in...........309-314

West Glacier, Mont., Middle Fork Flathead River near..................

Wethey Creek, Wash., discharge measurements of.........................

near Deer Park, Wash.................

Whatcom Creek below hatchery, rear

Bellingham, Wash................. 182

Whatcom Creek Basin, Wash., discharge

measurements in.................343-344

gaging-station records in...........182-183

269

351

298

near Buckley, Wash. 

Whitefish, Mont., Stillwater River near 263 

Whitefish Creek near Kalispell, Mont... 264 

Whitestone Irrigation District diversion, Wash., discharge measurement of ...........................

Whitestone Irrigation ditch, W?sh.,

353

discharge measurements of........ 353

Wickersham, Wash., Skookum Creek near.,

South Fork Nooksack River ne?r. 

Wildcat Creek, Wash., discharge

measurements of.

Wildcat Lake near Bremerton, Wash. 

Willapa River at Lebam, Wash......

near Willapa, Wash.

190

189

342

67

16

17

Tieton Reservoir ','vash.', 'contents'of 1!330-331 winaPa R iYer BasinA W?sh " gaglng- 1fi 17 

Tieton River at headworks of Tieton , H11 station records in............... 16-17

Canal, near Naches, Wash......... 339 Winow^Creek^Mont., discharge

338 measurements of. 

Wood Creek near Everett, Wash..........

Woods Creek near Monroe, Wash..........

Work, division of......................

scope of .............................

Wynoochee River at Oxbow, near Aberdeen, 

Wash.............................

below Black Creek, near Montesano, 

Wash.............................

Yaak River, Mont., discharge measurement of.

347

149

134

13

1

37

38

347

Yakima municipal diversion, Wa"h.,

discharge measurements of........ 354
364 INDEX

Yakima River at Cle Elum, Wash, 

at Kiona, Wash...............

at Umtanum, Wash.............

near Martin, Wash.

Page 

325 

329 

326

near Parker, Wash...................327-328

Yakima River Basin, Wash., discharge

measurements in.................. 354

Yakima River Basin, Wash., gagingstation records in..............324-341

reservoirs in.......................330-331

Yelm Creek, Wash., discharge measure343

343

raents of.

Yelm irrigation ditch, Wash., disharge measurements of.......

6U.S. GOVERNMENT PRINTING OFFICE : O - 1951

939922