Surface Water Sup ply 

of the United Stat es 

1947

Part 13. Snake River Basin

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1093

Prepared in cooperation with the States 

of Idahoj Oregonj Utah, flFashingtonj 

and Wyoming and other agencies

 P1IR1 IP PROPERTY and is not to This copy is rUDLlL PHUT l_n i

be removed from the official f ile^ P * W * lt- 380 , 

POSSESSION IS UNLAWFUL (R- S. Sup. Vol. 2, PP. 

Sec. 749)

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1950
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 60 cents (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation with 

the States of Idaho, Oregon, Utah, Washington, and Wyoming 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)

G. H. Canfield-__-_____-______--____.____________-____Portlani, Oreg.

Lynn Crandall_____-_-_____-___-______-______.____--Idaho Falls, Idaho

Robert Follanbsee______________________________________ .Denver, Colo.

T. R. NewelL__-__________________________-________.____Boise, Idaho

F. M. Veateh____-_-_______-_____-_____--___-__---____Tacoma, Wash.

M. T. Wilson___-----__-_______________--_.______Salt Lake Cir', Utah

m
CONTENTS

Page

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

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

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

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

Publications......................................................................... 5

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

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

Division of work................................................... ................. 12

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

Snake River main stem.............................................................. 14

Jackson Lake at Moran, Wyo....................................................... 14

Snake River at Moran, Wyo........................................................ 15

Snake River below Greys River, at Alpine, Idaho.................................. 16

Snake River near Heise, Idaho.................................................... 17

Diversions from Snake River between Heise and Shelley gaging stations, Idaho..... 18

Snake River near Shelley, Idaho.................................................. 19

Diversions from Snake River between Shelley and Blackfoot gaging stations, Idaho. 20

Snake River near Blackfoot, Idaho................................................ 21

American Falls Reservoir at American Falls, Idaho................................ 22

Snake River at Neeley, Idaho ..................................................... 24

Lake Walcott near Minidoka, Idaho................................................ 25

Snake R iver near Minidoka, Idaho................................................. 26

Snake River at Milner, Idaho ..................................................... 27

Snake Fiver near Kimberly, Idaho ................................................. 28

Snake River near Twin Palls, Idaho............................................... 29

Snake River near Buhl, Idaho..................................................... 30

Snake River below Salmon Palls, near Hagerman, Idaho..................... ....... 31

Snake River at King Hill, Idaho.................................................. 32

Snake River near Murphy, Idaho................................................... 33

Snake River at Weiser, Idaho..................................................... 34

Snake River at Oxbow, Oreg....................................................... 35

Snake River near Clarkston, Wash................................................. 36

Tributaries above Salt River....................................................... 37

Pacific Creek near Moran, Wyo.................................................... 37

Buffalo Pork near Moran, Wyo..................................................... 38

Gros Venfcre River at Kelly, Wyo.................................................. 39

Hoback River near Jackson, Wyo................................................... 40

Salt River Basin................................................................... 41

Salt River near Smoot, Wyo....................................................... 41

Salt River at Wyoming-Idaho State line ........................................... 42

Cottonwood Creek near Smoot, Wyo................................................. 43

Swift Creek near Afton, Wyo...................................................... 44

Crow Creek near Fairview, Wyo.................................................... 45

Stump Creek near Auburn, Wyo..................................................... 46

Henrys Fork Basin. ..........\ ...................................................... 47

Henrys Fork near Lake, Idaho ..................................................... 47

Island Park Reservoir near Island Park, Idaho.................................... 48

Henrys Pork near Island Park, Idaho.............................................. 49

Henrys Pork at Warm River, Idaho................................................. 50

Henrys Fork near Ashton, Idaho ................................................... 51

Diversions from Henrys Fork between Ashton and St. Anthony gaging stations, Idaho 52

Henrys Pork at St. Anthony, Idaho................................................ 53

Diversions from Henrys Pork between St. Anthony and Rexburg gaging stations,

Idaho.......................................................................... 54

Henrys Pork near Rexburg, Idaho. ................................................. 55

Smaller reservoirs in Henrys Fork Basin.......................................... 56

Diversions from Pqll River above gaging station, near Squirrel, Idaho............ 57

Fall River near Squirrel, Idaho ............ ..................................... 58

Diversions from Pall River between Squirrel and Chester gaging stations, Idaho... 59

Pall River near Chester, Idaho.................................................... 60

Teton River near Victor. Idaho................................................... 61

Teton River near Tetonia, Idaho. ..................'............................... 62

Teton River near St. Anthony, Idaho.............................................. 63

Diversions from Teton River between St. Anthony gaging station and mouth, Idaho.. 64

Teton Creek near Driggs, Idaho................................................... 65

Horseshoe Creek near Driggs, Idaho ............................................... 66

Packsaddle Creek nsar Tetonia, Idaho............................................. 67

Spring Creek near Tetonia, Idaho................................................. 68

Blackfoot River Basin.............................................................. 69

Blackfoot River near Bla :kfoot, Idaho ............................................ 69

Portneuf River Basin............................................................... 70

Portneuf River at Topaz, Idaho ................................................... 70

Portneuf River at Pocatello, Idaho ............................................... 71

Birch Creek near Downey, Idaho................................................... 72

Tributaries and diversions between Portneuf River and Salmon Palls Creek........... 73

Raft River at Peterson Rati3h, near Bridge, Idaho. ................................ 73

Clear Creek near Naf, Idaho...................................................... 74

V
Gaging-station records continued. Page 

Tributaries and diversions between Fortneuf River and Salmon Falls Creek--Contd.

North Side Minidoka Canal near Minidoka, Idaho........................-... 75

South Side Minidoka Canal near Minidoka, Idaho .......................- .. . 7b

Goose Creek above Trapper ("reek, near Oakley, Idaho. ........................ 77

Oakley Peservoir near Oakley, Idaho. ....................... . . ..............- '8

Trapper Creek near Oakley, Idaho...........................-... IJ

P. A. lateral near Milner, Idaho. ..........................-... ° IJ

Milner low-lift canal near Milner. Idaho................................ ....... 81

Gooding Canal at Milner, Idaho ...................... . °J

North Side Twin Falls Canal at Milner, Idaho............................ ........ =J

South Side Twin Falls Canal at Milner, Idaho. ....................... 84

Roek Creek near Rock Creek, Idaho................................................ 85

Rock Creek near Twin Falls, Idaho................................................ 86

Salmon Falls Creek Basin.................. ........................................ 87

Salmon Falls Creek near San Jacinto, Nev........................... ............. 87

Salmon River Canal Co. reservoir near Rogerson, Idaho............................ 88

Salmon River Canal Co. canal near Rogerson, Idaho................................ 89

Mud Lake-Lost River Basin.................... ... ................................. 90

Mud Lake Basin................................................................... 90

Mud Lake near Terreton, Idaho....................................... .......... 90

Camas Creek at Eighteenmile shearing corral, near Kilgore, Idaho. .............. 91

Camas Creek at Camas, Idaho.......................................... ......... 92

Beaver Creek at Spencer, Idaho................................................. 93

Beaver Creek at Dubois, Idaho........................................... ...... 94

Beaver Creek at Camas, Idaho................................................... 95

Medicine Lodge Creek at Ellis Ranch, near Argora, Idaho........................ 96

Medicine Lodge Creek near Small, Idaho......................................... 97

Little Lost River Bqsin.......................................................... 98

Lit tie Lost River near Howe, Idaho. ..._..,....................................... 93

Blaine County Investment Co. 's canal near Howe, Idaho.......................... 99

Big Lost River Basin.................... ...................................... . 100

Big Lost River at Wild Horse, near Chilly, Idaho. .............................. 100

Big Lost River at Howell Ranch, near Chilly, Idaho............................ 101

Big Lost River (east channel) above Mackay Reservoir, near Mackay, Idaho....... 102

Big Lost River (west channel) above Mackay Reservoir, near Mackay, Idaho....... 103

Mackay Reservoir near Mackay, Idaho............................................ 105

Big Lost River below Mackay Reservoir, near Mackay, Idaho. ..................... 10b

Big Lost River near Arco, Idaho................................................ 107

Warm Spring Creek (east channel) near Mackay, Idaho. ........................... 108

Warm Spring Creek (west channel) near Mackay, Idaho............................ 109

Sharp ditch near Mackay, Idaho................................................. 110

Big Wood River Basin............................................................ .. Ill

Big Wood River at Hailey, Idaho. ................................................. Ill

Big Wood River near Bellevue, Idaho.............................................. 113

Magic Reservoir near Richfield , Idaho ............................................. 114

Big Wood River below Magic Dam, near Richfield, IdahD............................ 115

Big Wood River at Gooding, Idaho..................... .......................... lib

Big Wood River near Gooding, Idaho.............................. ................ 117

Warm Springs Creek at Guyer Hot Springs, near Ketchum, Idaho. .................... 113

Big Wood Slough at Hailey, Idaho... ..... ....................................... 119

Camas Creek near Blaine, Idaho................................................... 120

Lincoln Canal near Richfield, Idaho...................................... ....... 121

Lincoln Canal near Shoshone, Idaho............................................... 122

Thorn Creek spillway near Gooding, Idaho......................................... 123

Little Wood River at Campbell Ranch, near Carey, Idaho........................... 124

Little Wood River near Carey, Idaho.............................................. 125

Little Wood River near Richfield, Idaho....................... .................. 126

Little Wood River at Shoshone, Idaho. ............................................ -127

Silver Creek near Picabo, Idaho.................................... ............. 128

King Hill Canal near Hagerman, Idaho............................................. 129

Canyon Creek Basin................................................................. 130

Mountain Home feeder canal near Mountain Home, Idaho.................... ..... . . 130

Mountain Home cooperative canal near Mountain Home, Idaho........................ 131

Bruneau River Basin........................................... .................... 132

Bruneau River near Winter Ranch Camp, Idaho..................................... 132

Bruneau River near Hot Spring, Idaho............................................. 133

Bruneau River near Grand View, Idaho........................................ .... 134

Wickahoney Creek near Bruneau, Idaho............................................. 135

Jacks Creek near Bruneau, Idaho.................................... . ........... 135

Owyhee River Basin................................................................. 136

Owyhee River near Gold Creek, Nev................................................ 136

Owyhee River at Mountain City, Nev......... ..................................... 137

Owyhee River above China diversion dam, near Owyhee, Nev......................... 138

Owyhee River above Owyhee Reservoir, Oreg........................................ 139

Wild Horse Reservoir near Gold Creek, Nev........................................ 14f

Jordan Creek above Lone Tree Creek, near Jordan Valley, Oreg..................... 142

Boise River Basin.................................................................. 143

Boise River near Twin Springs, Idaho............................................. 143

Arrowrock Reservoir at Arrowrock, Idaho.......................................... 144

Boise River at Dowling Ranch, near Arrowrock, Idaho............... .............. 145

Diversions from Boise River between Dowling Ranch and Boise gaging stations.

Idaho.......................................................................... 146
CONTENTS VII

Gaging-station records Continued.

Boise River Basin Continued. Page

Middle Fork Boise River near Twin Springs, Idaho................................. '150

South Pork Boise River near Peatherville, Idaho.................................: 151

Anderson Ranch Reservoir at Anderson Ranch Dam, Idaho............................ 152

South Pork Boise River at Anderson Ranch Dam, Idaho.............................. 153

South Fork Boise River near Lenox, Idaho......................................... 154

Lime Creek near Bennett, Idaho................................................... 155

Fall Creek near Anderson Ranch Dam, Idaho........................................ 156

Little Camas Canal at heading, near Bennett, Idaho............................... 157

Moore Creek near Arrowrock, Idaho..................................... .......... 158

New York Canal near Barber, Idaho................................................ 159

Lake Lowell near Caldwell, Idaho................................................. 160

Malheur River Basin................................................................ 161

Malheur River near Drewsey, Oreg........................... ... ............... 161

Malheur River below Warmsprings Reservoir, near Riverside, Oreg.................. 162

Malheur River near Hope, Oreg.................................................... 163

Reservoirs in Malheur River Basin, Oreg.... ..................................... 164

North Pork Malheur River abo/e Agency Valley Reservoir, near Beulah, Oreg........ 165

North Pork Malheur River at Beulah, Oreg......................................... 166

Bully Creek near Vale, Oreg.......................................... .. ........ 167

Payette River Basin................................................................ 168

South Pork Payette River at Lowman, Idaho........................ ............... 168

South Pork Payette River near Garden Valley, Idaho............................... 169

South Pork Payette River near Banks, Idaho....................................... 170

Payette River near Horseshoe Bend, Idaho ......................................... 171

Payette River near Emmett, Idaho................................................. 172

Payette River near Payette, Ohio................................................. 173

Clear Creek at Lowman, Idaho.............................................. ....... 174

Deadwood Reservoir near Lowman, Idaho.................. ......................... 175

Deadwood River below Deadwood Reservoir, near Lowman, Idaho...................... 176

Deadwood River near Lowman, Idaho................................................ 177

Payette Lake at McCall, Idaho.................................................... 178

North Pork Payette River at McCall, Idaho........................................ 179

North Pork Payette River at Cascade, Idaho....................................... 180

North Fork Payette River near Smiths Ferry, Idaho................................ 181

North Fork Payette River near Banks, Idaho....................................... 182

Pish hatchery diversion at McCall, Idaho......................................... 183

Lake Fork Payette River above Jumbo Creek, near McCall, Idaho.................... 184

Lake Fork Reservoir near McCall, Idaho........................................... 185

Lake Fork Payette River below Lake Irrigation District Canal, near McCall, Idaho. 186

Lake Irrigation District Canal near McCall, Idaho................................ 187

Cruzen Canal at Lake Fork, Idaho................................................. 187

Reiser River Basin................................................................. 188

Weiser River at Tamarack, Idaho.................................................. 188

Weiser River- at Starkey, Idaho................................................... 189

Weiser River near Council, Idaho ................................................. 190

Weiser River near Cambridge, Idaho ............................................... 191

Weiser River above Crane Creek, near Weiser, Idaho............................... 192

West Fork Weiser River near Fruitvale, Idaho..................................... 193

Lost Valley Reservoir near Tamarack, Idaho....................................... 193

Lost Creek near Tamarack, Idaho.................................................. 194

Middle Pork Weiser River near Mesa, Idaho........................................ 195

Mesa Orchards Canal near Mesa, Idaho............................................ 196

Johnson Creek below Johnson Park, near Coumil, Idaho. ........................... 197

Bacon Creek near Mesa, Idaho..................................................... 198

Pine Creek near Cambridge, Idaho................................................. 199

Little Weiser River near Indian Valley, Idaho.................................... 200

Crane Creek Reservoir near Midvale, Idaho........................................ 201

Crane Creek near Midvale, Idaho.................................................. 202

Crane Creek at mouth, near Weiser, Idaho......................................... 203

Weiser Irrigation District Canal near Weiser, Idaho.............................. 204

Mann Creek near Weiser, Idaho.................................................... 205

Monroe Creek above Sheep Creek, near Weiser, Idaho............................... 206

Burnt River Basin.................................................................. 207

Unity Reservoir near Unity, Oreg................................................. 207

Burnt River near Hereford, Oreg.................................................. 208

Powder River Basin.............. ................................................. 209

Powder River at Salisbury, Oreg.................................................. 209

Powder River near Haines, Oreg. ................................................... 210

Powder River near Robinette, Oreg................................................ 211

Wolf Creek near North Powder, Oreg. ............'.................................. 212

Imnaha River Basin................................................................. 213

Imnaha River above Gumboot Creek, Oreg........................................... 213

Imnaha River at Imnaha, Oreg..................................................... 214

Salmon River Basin................................................................. 215

Salmon River near Obsidian, Idaho. ................................................ 215

Salmon River below Valley Creek, at Stanley, Idaho............................... 216

Salmon River below Yankee Fork, near Clayton, Ida'ho. ............................. 217

Salmon River near Challis, Idaho ................................................. 218

Salmon River at Salmon, Idaho...... ...... ...................................... 219

Salmon River near Shoup, Idaho.... .............................................. 220

Salmon River near French Creek, Idaho. ........................................... 221

Salmon River at Whitebird, Idaho ................................................. 222

Alturas Lake Creek near Obsidian, Idaho.......................................... 223

Valley Creek at Stanley, Idaho................................................... 224

Yankee Fork Salmon River near Clayton, Idaho...."................................. 225

Challis Creek near Challis, Idaho................................................ 226

Pahsimeroi River near May, Idaho....... ......................................... 227
VIII CONTENTS

Gaging-station records Continued.

Salmon River Basin Continued. Page

Panther freek near Shoup, Idaho.................................................. 228

Middle Fork Salmon River near Cape Horn, Idaho ................................... 229

Bear Valley Creek near Cape Horn, Idaho.......................................... 230

Big Creek near Eig Creek, Idaho.................................................. 231

South Fork Salmon River near Knox, Idaho......................................... 232

Johnson Creek nsar Landmark ranger station, Idaho................................ 233

Johnson Creek at Yellow Pine, Idaho.............................................. 234

Secesh River near Eurgdorf, Idaho................................... ............ 235

Warren Creek near Warren, Idaho. ............... ...,..........................'... 236

Mud Creek near Tamarack, Idaho.....,............................................: 237

Grande Ronde River Basin........................................................... 238

Grande Ronde R iver near Hilgard, Oreg............................................ 238

Grande Ronde River at La Grande, Oreg............................................ 239

Grande Ronde River at Rondowa, Oreg.............................................. 240

Grande Ronde River at Troy, Oreg................................................. 242

Catherine :reek near Union, Oreg................................................. 243

Indian Creek near Imbler, Oreg....... ............................................ 244

East Fork Wallowa River near Joseph, Oreg.............. ... ....................._, 245

Wallowa Falls power-plant tailrace near Joseph, Oreg............................. 246

Hurri:ane "Creek near Joseph, Oreg................................................ 247

Lostine River near Lostine, Oreg................................................. 248

Bear creek near Wallowa, Oreg.................................................... 249

Asotin Creek Basin............... ................................................. 250

Asotin Creek near Asotin, Wash................................................... 250

Clearwater River Basin............................................................. 251

Selway River above Meadow Creek, near Lowell, Idaho.............................. 251

Selway River near Lowell, Idaho.................................................. 252

Clearwater River at Kamiah, Idaho. ............................................... 253

Clearwater River at Spalding, Idaho.............................................. 254

Lochsa River near Lowell, Idaho.................................................. 255

South Fork Clearwater River near Elk City, Idaho................................. 256

South Fork Clearwater River near Grangeville, Idaho.............................. 257

North Fork Clearwater River at Bungalow ranger station, Idaho.................... 258

North Fork Clearwater River near Ahsahka, Idaho.................................. 259

Potlatch Creek at Kendrick, Idaho................................................ 260

Miscellaneous discharge measurements ................................................. 261

Index................................................................................ 265

ILLUSTRATION

Page 

Figure 1. Gaging-station structures: A, Snake River at King Hill, Idaho; B, Snake

River near Murphy, Idaho; C, Snake River near Clarkston, Wash.......... 3
SURFACE WATER SUPPLY OP SNAKE RIVER BASIN, 1947

SCOPE OF WORK

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

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

water year ending September 30, 1947. 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 11,100 gaging stations 

in the 48 States and also at many in the Territories of Alaska and Hawaii. In July 1947, 

5,810 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," it 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 othe" terms used 

herein 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 wate- flowing per 

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

"Runoff in inches" is the depth to which an area would be covered if all the water 

draining from it in a given period were uniformly distributed on its surface. It is used 

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

An "acre-foot" is the quantity of water required to cover an acre to the depth of 

1 foot and is equivalent to 43,560 cubic feet. The term is commonly used in connection 

with storage for irrigation.

"Second-foot-day" is the volume of water represented by a flow of 1 seconrl-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 gage that determines the stage-discharge relation at the gage. This feature may be a natural section, 

a reach of the channel, or an artificial structure.

1
2 SURFACE WATER SUPPLY, 1947, PART 13

"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 OP DATA

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

of discharge, and general information used to supplement the records of stags 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 g.'ves a continuous record of the fluctuations. Measurements of discharge are made with a current 

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

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

Rating tables giving the discharge for any stage are prepared from the discharge measurements. The application of the daily mean gage height to those rating tables gives the 

daily mean discharge, from which the monthly and the yearly mean discharge are computed. 

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

change in the physical features that form'the control, the daily mean discharge is determined by 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-discharge relation is affected by changing stage, and for them the rate of 

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

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

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

the winter, which makes it impossible to compute the discharge 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 referr-ing to a 

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

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

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

by a footnote.

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

presented comprise a description of the station, a table showing the daily discharge of
EXPLANATION OF DATA

A. SNAKE RIVER AT KING HILL, IDAHO.

B. SNAKE RIVER NEAR MURPHY, IDAHO.

C. SNAKE RIVER NEAR CLARKSTON, WASH. 

FIGURE 1. GAGING-STATION STRUCTURES
4 SURFACE WATER SUPPLY, 1947, PART 13

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

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

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

or other special methods.

The description of the station gives the type of gage, Its latitude and longitude as 

determined from the best available maps, and information in regard to diversions that 

decrease the flow at the gage, artificial regulation from pondage or storage, and the 

accuracy of the records. Under "Average discharge" is given the average discharge for the 

number of years indicated. It is given only for stations for which there are 10 or more 

complete years of record. 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 thsre 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. Likewise the minimum discharge represents the lowest stage, unless otherwise qualified. Selected peak discharges 

with the times of their occurrence are given, below the table of monthly discharge, for 

some stations. This supplementary information is generally omitted for a station at which 

the drainage area of the stream is less than 10 or more than 10,000 square miles or at 

which, on most days, the peak discharge exceeds the mean discharge by less than 10 percent

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 daily mean 

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

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

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

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

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

equipped with nonrecording gages, the table of daily discharge gives the discharge corresponding to either once-daily readings of the gage, the mean of twice-daily readings, or 

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

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

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

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

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

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

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

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

feet per second during the month.

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 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.
SURFACE WATER SUPPLY, 1947, PART 13 5

ACCURACY OP 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 dally records Is 

believed to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and "poor," probably more than 15 percent. The records of monthly and yearly mean 

discharge and runoff are, In general, more accurate than the dally records.

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

owing to diversion, consumption, regulation by storage, Increase or decrease In evaporation 

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

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

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

adjustments can be made for changes in contents or reservoirs or for other chaiges 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 tho^e 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.

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 aop-opriations 

below the station must first be satisfied.

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

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

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

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

subject to revision in succeeding water-supply papers.

PUBLICATIONS

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

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

below:

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

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

	Mississippi River).

3. Ohio River Basin.

4. St. Lawrence River Basin.

5. Hudson Bay and upper Mississippi River Basins.

6. Missouri River Basin.

7. Lower Mississippi River Basin.

8. Western Gulf of Mexico basins.

9. Colorado River Basin.

10. The Great Basin.

11. Pacific slope basins in California.

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

13. Snake River Basin.

14. Pacific slope basins in Oregon and lower Columbia River Basin.
6 SURFACE WATER SUPPLY, 1947, PART 13

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 recourseF 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.

Baton 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., 105 Engineering Building, University of Maryland.

Columbia, S. C.,207 Creason Building.

Columbus, Ohio, 404 Engineering Experiment Station, Ohio State University.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 205 Underwriters Building.

Jackson, Miss., 208 Mlllsaps Building.

Knoxville, Term., 337 Post Office Building.

Louisville, Ky., 531 Federal Building.

Madison, Wis., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

Morgantown, W. Va., 407 Mineral Industries Building.

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building.

Ocala, Fla., 302 Post Office Building.

Pittsburgh, Pa., 515 Plaza Building.

Raleigh, N. C., 244 Educational Building.

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

Trenton, N. J., 228 Federal Building.

Washington, D. C., Tencral Cervices EiiLlintr.

Williamsburg, Ky., State Highway Building.

West of the Mississippi River:

Albuquerque, N. Mex., 723 North Second Street.

Austin, Tex., 302 West Fifteenth Street.

Bismarck, N. Dak., 7 Eltinge Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., 126 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., 301 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 indiv.'.dual stations 

may usually be obtained from the district -offices listed above.
PUBLICATIONS

Early records of the flow of streams in the United States are published in the reports 

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

have been included for some streams.

Stream-flow data for the years 1884-1901, In reports of the Geological Survey 

(A - Annual Report) B > Bulletin; w » Water-Supply Paper)

Report

10th A, pt. Z 

llth A, pt. Z

16th A, pt. 2

18th A, pt. 4 

W 15.........

19th A, pt. 4

W 65, 66.....

W 75.........

Character of data

Descriptive Information only.

Descriptive Information only.

monthly discharge.

Descriptions! measurements ratings, and monthly discharge...

of the Mississippi Rive and Missouri River and tributaries above Kansas Rlv r.

of the Mississippi Rive except Missouri River and tributaries above Kansas Rlv r. 

Descriptions, measurements, ratings, and monthly discharge.

the Mississippi River, and Missouri River and tributaries.

the Mississippi River, except Missouri River and tributaries .

Year

1895-96.

1897.

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 1 the years 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 those years.

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

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

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

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

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

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

Each of the reports on surface water supply for the year 1939, issued as Water-Supply 

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

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

have been collected. These summaries are available also as separate reprints.
Numbers of water-supply papers containing results of stream measurements, 1899

Year

1899 a... 

1900 g... 

1901..... 

1902 ..... 

1903.....

1905..:.. 

1906..... 

1907-8... 

1909.....

1910..... 

1911..... 

1912..... 

1913..... 

1914.....

1915. .... 

1916..... 

1917..... 

1918..... 

1919-20..

19Z1. .... 

1922..... 

1923..... 

1924..... 

1925.....

1926.. .. . 

1927..... 

1928..... 

1929..... 

1930.....

1931... .. 

1932..... 

1933..... 

1934..... 

1935.....

1936..... 

1937..... 

1938..... 

1939..... 

1940 .....

1942 ..... 

1943..... 

1944..... 

1945.....

1946. .... 

1947.....

1

35 

47, h48 

65, 75 

82 

97

0165, p!66, q!67 

0201, p202, q203 

241 

261

281 

301 

321 

351 

381

4O1 

431 

451 

471 

501

521 

541 

561 

581 

601

641 

661 

681 

696

711 

726 

741 

756 

781

801 

821 

851 

871 

891

951 

971 

1001 

1031

1051 

1081

2

b3S, 36 

48 

65, 75 

b82, 83 

b97, 98

q!67, 168 

q203, 204 

242 

262

282 

302 

322 

352 

382

4O2 

432 

452 

472 

502

522 

542 

562 

582 

602

642 

662 

682 

697

712 

727 

742 

757 

782

802 

822 

852 

872 

892

952 

972 

1002 

1032

1052 

1082

3

36 

48, 149 

65, 75 

83 

98

169 

205 

243 

263

283

303 

323 

353 

383

403 

433 

453 

473 

503

523 

543 

563 

583 

603

643 

663 

683 

698

713 

728 

743 

758 

783

803 

823 

853 

873 

893

953 

973 

1003 

1033

1053 

1083

4

36 

49 

65, 75 

ra82, 83 

97

170 

206 

244 

264

284 

304 

324 

354 

384

404 

434 

454 

474 

504

524 

544

564 

584 

604

644 

664 

684 

699

714 

729 

744 

759 

784

804 

824 

854 

874 

894

954 

974 

1004 

1034

1054 

1084

5

36 

49 

k65, 66, 75 

k83, 85 

k98, 99, nlOO

171 

207 

245 

265

285 

305 

325 

355 

385

405 

435 

455 

475 

505

525

545 

565 

585 

605

625 

645 

665 

685 

700

715 

730 

745 

760 

785

805 

825 

855 

875 

895

955 

975 

1005 

1035

1055 

1085

6

c36, 37 

49, J50 

66, 75 

84 

99

17? 

208 

246 

266

286 

306 

326 

356 

386

406 

436 

456 

476 

506

526 

546 

566 

586 

606

626 

646 

666 

686 

701

716 

731 

746 

761 

786

806 

826 

856 

876 

896

956 

976 

1006 

1036

1056 

1086

7

37 

50 

k65, 66, 75 

k83, 84 

k98, 99

k!69, 173 

k205, 209 

247 

267

287 

307 

327 

357 

387

407 

437 

457 

477 

507

527 

547 

567 

587 

607

627 

647 

667 

687 

702

717 

732 

747 

762 

787

807 

827 

857 

877 

897

957 

977

1007 

1037

1087

8

66, 

1

1

1

a Katlng ta'Dles and Index to Water-Supply Papers 35-39 

contained In Water-Supply Paper 39. Monthly discharge for 1899 in 21st Annual Report, part 4. 

b James River only. h 

c Oallatln River. i 

d Oreen and Ounnison Rivers and Colorado River above J

Ounnlson River.

e Mojave River only. k 

f Kings and Kern Rivers and south Pacific slope basins, ra

Rating tables and In-le* to Watfif-Supply Pap

contained in Water-Supply Paper 52. Month

for 1900 in 22d Annual Report, part 4.

Wissahlekon and Sohuylkill Rivers to James 

Scloto River.

Loup, Platte, and Elkhorn Rivers and tribut

Platte River.

Tributaries of Mississippi River from east.

Lake Ontario and tributaries to St. Lawrenc
PUBLICATIONS

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

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

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

series 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 

Joaquln 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 of ...........

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.

DRAINAGE BASIN 

Colorado River (Arlz., Colo., N. Hex., Utah, Wyo.) and its utilization...

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

at base stations in. 

Colorado River Basin (Ariz., 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 Baa In (N. C., Va., W. Va.), Surface water supply of....

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

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

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

River Basin. 

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

Susquehanna River Basin (Pa., Md.) Hydrography of ........................

Period

1895-1903 

1887-1912 

1878-1912 

1891-1912 

1890-1918

1894-1927 

1895-1927

1919 35

1888-1914

1891-1938 

1888-1938 

1898-1938

1895-1920

1895-1906 

1888-1913

1889-1937 

1890-1904

Water-Supply 

Paper

107 

298 

299 

300 

447

636-E 

637-A

395

918 

1049 

916

536 

? 79

192 

358

920 

109

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

State reports containing compilations of records of discharge

State

Colorado. ..... 

Do......... 

Connecticut...

Illinois ......

Period

1895-1915

1881-1935 

1881-1938

1900-1927 

1912 33

1907 19

1908-11

1923 27

1873 1932

Report

Water resources of Colorado, Appendix 2, 

Data on stream-gaging stations of 

Colorado . 1 

Water resources of Colorado, Appendix 3, 

vols. 1 and 2., Stream-flow data of 

Colorado. 

Bull. 44, Water resources of Connecticut...

Water resources of Illinois. ...............

and flood flow relating to Iowa streams . .

resources of Iowa.

Issued by

Geological Survey of Alabama.

State Planning Commission, 

Water Conservation Board, 

State engineer. 

Do.

State Geological and Natural 

History Surrey. 

State Water Commission.

Do.

Rivers and Lal'es Commission.

Department of Conservation.

Do.

Iowa "Geological Survey.

Do.

1 Contains records of yearly discharge only. 

881401 O - 50 - 2
10

SURFACE WATER SUPPLY, 1947, PART 13 

State reports containing compilations of records of discharge Continued

State

Do......... 

Do.........

Louisiana.... .

Minnesota.... . 

Missouri ......

Nebraska... . ..

Hew Hampshire. 

Hew Jersey ....

Hew Mexico .... 

Horth Carolina

Horth Dakota.. 

Do .........

Pennsylvania..

South Carolina 

Tennessee. ....

Do.........

Washington .... 

Wisconsin. ....

Period

1924-28 

1928-35

1903-38

1909-12 

1857-1926 

1927 39

1894-1914

1889-1922 

1892-1928

1888-1925 

1889-1923

1919-21 

1882-1938

1902 39

1890-1911

1884-1946

1874-1924 

1920 30

1878-1933 

1888-1914 

1914 23

Report

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

Stream-flow data of Kansas .................

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.

Missouri.

sources of Montana. 

1st hydrographlc report. . ..................

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

Bull. 33, Surface water supply of New 

Jersey.

New Jersey.

Hew Jersey. 

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

Bull. 34, Discharge records of Horth 

Carolina streams.

Carolina streams. 2

Basin.

Basin. 

Report to Governor of Horth Dakota on 

flood control. 

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

records of Ohio.

flow-duration tables.

Oregon .

Oregon .

Oregon.

Oregon . 

Report of the Water Supply Commission of 

Pennsylvania .

Bull. 17, Summary of records of surface 

water supply of South Carolina.

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

(Potomac, Rappahannock, and York River 

Basins).

(James River Basin).

(Roanoke and Chowan River Basins).

(New, Tennessee, and Big Sandy River 

Basins ) . 

Bull. 5, Monthly and yearly summaries of 

hydrometrlc data. 

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

consln to Legislature on water powers.

Issued by

State Board of Agriculture. 

Do.

Department of Conservation.

Water Resources Commission.

and Water Resources. 

State Drainage Commission.

Missouri Bureru of Geology 

and Mines .

and Water Resources.

ment Statlor . 

Bureau of Water Power, Irrigation, and Drainage.

Public Service Commission. 

Department of Conservation 

and Development .

Office of the State Engineer. 

Department of Conservation 

and Development .

Do.

State chief erglneer. 

State Planning Board.

Commission.

Ohio State University.

Division of Conservation 

and Natural Resources.

Ohio State tolverslty.

Do.

Water Supply Commission of 

Pennsylvania.

Waters.

South Carolina Research, 

Planning and Development 

Board. 

Department of Education.

Do.

mission.

Department of Conservation 

and Developnent. 

Railroad Commission of Wisconsin .

Z Contains records of maximum and minimum daily, weekly, and monthly discharge and yearly mean 

discharge.

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

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

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

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

Mexico, Hew York (also Hew York City Board of Water Supply and city of Rochester), North Dakota, 

Oregon, Pennsylvania, Rhode Island, Washington, and Wyoming.
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 11

The reports listed in the foregoing tables contain the customary records of discharge 

collected during the systematic operation of gaging stations. Detailed information on 

the stage and discharge of many streams during major floods has been included in special 

reports on these floods published by the Geological Survey. The more recent of these 

special reports also contain other pertinent hydrologic information and analyses and compilations of data relating to earlier noteworthy floois. The following list gives the numbers and titles of these reports:

Water-Supply 

Paper

88

92

96 

147 

162 

334 

426

487

488

520- G

636-C

771

'73-E

796-B

796-C

796-G

798

799

800 

816 

836-A 

838

842

843

844

847

867

869

914

966

967-A

967-B

967-C

994

997 

1046 

1066 

1080

., Tltle

The Passaic flood of 1902. 

The Passaic flood of 1903.

Destructive floods in the United States in 1903. 

Destructive floods in the United States in 1904. 

Destructive floods in the United States in 1905. 

The Ohio Valley flood of March- April 1913. 

Southern California floods of January 1916. 

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

The floods In central Texas in September 1921. 

Some floods in the Rooky Mountain region. 

The New England flood of November 1927. 

Floods in the United States, magnituds and frequency. 

The New York State flood of July 1935.

Flood on Republican and Kansas Rivers, May and June 1935. 

Flood in La Canada Valley, Calif., January 1, 1934. 

Major Texas floods of 1935.

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

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

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

Major Texas floods of 1936.

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

Floods of Ohio and Mississippi Rivers, January-February, 1937. 

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

Floods of December 1937 in northern California. 

Floods of March 1938 in southern California.

Maximum discharges at stream-measurement stations through September 1938. 

Hurricane floods of September 1938. 

Flood of August 1935 in Musklngum River Basin, Ohio. 

Texas floods of 1938 and 1939. 

Minor floods of 1938 in North Atlantic States.

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

Flood of July 5, 1939, in eastern Kentucky. 

Flood of August 21, 1939, in town of Baldwin, Maine. 

Cloudburst floods in Utah, 1850 to 1938. 

Floods in Colorado. 

Texas floods of 1940.

Floods of ftagust 1940 in the southeastern States. 

Floods of May-June 1948 in Columbia River Basin.

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 

194P to September 1947 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

American Falls Reservoir, Inflow to.

Snake River tributaries. 

Teton River tributaries and diversions. 

Thief Valley Reservoir.

t Records for some e 

* Fragmentary.

Location

Near American Falls, Idaho. ........

SWi sec. 32, T. 20 S., R. 41 E. , 

near Namorf, Oreg. 

Below Nevada Dam, near vale, Oreg..

Near Irwln, Idaho. ................. 

Near Driggs , Idaho .................

NE^SW-J: sec. 26, T. 63., R. 40 E. , 

at Thief Valley Dam, 7 miles east 

of North Powder, Oreg. 

arlier years published in water-supplj

Period

1927-28, 1932-47

1934, 1936-4E, 

1944-47t. 

1940-47*. .......

1934-47*. ....... 

1944-47t. ....... 

t papers of the Ge

Collected by

36. 

Oregon State engineer. 

Do.

Idaho Water District 

36. 

Do.

Oregon State engieer.

ological Survey.
SURFACE WATER SUPPLY, 1947, PART 13

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

Stream

Wallowa Lake Reservoir 

Wallowa River. ........

Location

At outlet, near Joseph, Oreg. ......... 

Below Wallowa Lake, Oreg. .............

Period

1925-47t 

1926-47t

Collected by

Oregon State engineer. 

Do.

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

Note.- of the records for the stations operated by the Oregon State engineer, those for 19Z5-3O 

are published In Bulletin 8 of the State engineer, and those for 1931-36 (including some to December 

1936) in Bulletin 9; those for 1937-47 have not been published.

Records for the stations operated by Idaho Water District 36 are published in the annual reports 

of that organization.

COOPERATION

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

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

Oregon: Office of the State Engineer, C. E. Stricklin. 

Utah: Office of the State Engineer, E. H. Watson.

Washington: State Department of Conservation and Development, Art Garton, 

director, and C. J. Bartholet, consulting engineer for the department.

Wyoming: Office of the State Engineer, L. C. Bishop.

Financial assistance was furnished by the Corps of Engineers in the operation of 18 

gaging stations, of which 14 were in Idaho and 4 in Wyoming.

Financial assistance was furnished also by the Office of Indian Affairs and the Bureau 

of Reclamation of the United States Department of the Interior. Assistance was furnished 

by the Weather Bureau of the United States Department of Commerce;

Assistance in collecting records was rendered by the following organizatiors and watermasters .

Idaho- City of Pocatello, Idaho Power Co., Board of Control for Boise Project, 

Idaho Water District 36, North Side Canal Co., Twin Falls Canal Co., Utah Power & 

Light Co., Washington Water Power Co., and watermasters for Big Lost, Little Lost, 

Big Wood. Little Wood, Boise, and Weiser Rivers, Lake Fork of Payette River, and 

Mud Lake.

Oregon: Malheur, Baker, Onion, and Wallowa Counties, Pacific Power & Light Co., 

and Warmsprings Irrigation District.

Washington: Bonneville Power Administration, Washington Water Power Co.

DIVISION OF WORK

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

Survey Carl G. Paulsen, chief hydraulic engineer, and Joseph V. B. Wells, chJef 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 listed below.

Idaho: Stations on Snake River between Heise and Milner, stations on 

tributaries of Snake River above American Falls Reservoir (except Teton Fiver 

near Victor, Teton Creek and Horseshoe Creek near Driggs, and Packsaddle Creek 

and Spring Creek near Tetonia) and diversions from Snake River at and atove 

Milner, Lynn Crandall; all other stations in Idaho, T. R. Newell.

Nevada: M. T. Wilson (except for Salmon Falls Creek near San Jacinto, 

T. R. Newell).
13

Oregon: G. H. Canfield (except for Snake River a.t Oxbow, T. R. Newell), the 

work being done in collaboration with C. E. Stricklin, State engineer.

Utah: M. T. Wilson (Clear Creek near Naf, Idaho).

Washington; F. M Veatch.

Wyoming: Grassy Lake, Jackson Lake, and Snake River at Moran, Lynn Crandall; 

Salt River near Smoot and at Wyoming-Idaho State line, Cottonwood Creek near 

Smoot, and Swift Creek near Afton. Robert Follansbee; all other stations in 

Wyoming, T. R. Newell.

The records were reviewed and the manuscript prepared for publication under the direction of B. J. Peterson, chief, annual reports section.
SNAKE RIVER MAIN STEM 

Jackson Lake at Moran, Wyo.

Location.- Electric tape gage, lat. 43°51', Jong. 110°35", in sec. 18, T. 45 N., R. 114 

W., at dam on Snake River, at Moran. Datum of gage is at mean sea level (levels by 

Bureau of Reclamation).

Drainage area.- 816 squire -ni]es.

Records available.- July 1908 to September 1947 (1908-10 fragmentary).

Extremes.- Maximum contents during year 854,660 acre-feet June 27 (elevation, 6,769.30 

reet); minimum, 403,410 acre-feet Oct. 1 (elevation, 6,750.47 feet).

1908-47: Maximum contents, 857,220 acre-feet June 23, 1937 (elevation, 6,769.40 

feet) ; no usable contents on several days during period August to October 1919 (elevation, 6,730.00 feet).

Remarks.- Reservoir was formed by log crib dam in 1306 with a usable capacity of 300,003 

acre-feet. The dam washed out in July 1910 and was replaced by an earth dam, forming 

a reservoir with a usable capacity of'380,000 acre-feet. The earth dam was raised in 

1916 increasing the usable capacity to 790,000 acre-feet. In 1917, by dredging the 

outlet, the capacity was further increased to 847,000 acre-feet between elevations 

6,730 feet (top of baffles to sluices) and 6,769 feet (top of spillway gates). Water 

is used for irrigation in Snake Fiver Valley, Idaho. Gage read once daily at 8 a.m. 

Contents as given herein are computed from elevation at that time; all available for 

release.

Cooperation.- Reservoir elevations and capacity table furnished by Bureau of Reclamation.

Contents, In acre-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

403,410

404,750

406,090

406,990

407,880

408,330

409,220

410,560

411,680

412,580

413,020

413,690

414,810

415,260

416,610

419,090

419,770

420,670

421,580

422,250

423,150

424,280

425,640

427,440

429,020

430,370

431,950

433,980

435,110

435,780

436,910

HOT.

438,040

439,180

440,090

440,540

441,450

441,910

442,590

443,270

444,640

445,090

445,550

446,230

447,140

448,500

449,410

449,870

450,550

451,000

451,460

453,280

454,870

455,320

457,600

458,960

459,420

460,330

461,240

463,530

464,680

465,820

-

Dec.

466,280

467,430

468,580

469,260

470,180

471,780

472,930

474,990

476,370

477,510

478,660

479,800

482,100

484,390

486,470

486,930

487,390

487,620

487,860

488,320

488,780

489,700

490,390

491,090

492,010

493,390

495,010

496,390

497,090

497,550

498,470

Jan.

499,630

500,320

500,780

501,470

502,630

503,780

504,470

505,630

506,550

507,710

509,340

510 , 500

511,430

512,130

512,820

513,990

514,920

515,610

516,780

517,700

518,400

518,870

519,330

520,030

520,960

523,750

524,910

525,840

526,540

527,700

528,630

Feb.

529,790

531,430

532,360

533,070

533,530

534,000

534,700

535,410

536,110

536,580

537,280

537,980

539,150

540,320

541,020

541,960

542,660

543,130

544,060

544,770

545,470

545,940

546,870

547,570

548,280

548,740

549,450

549,910

_

_

-

Mar.

550,620

551,080

552,250

553,900

555,310

556,020

556,960

557,900

558,840

560,020

561,670

562,610

563,320

563,790

564,500

565,200

565,910

566,850

567,800

568,270

568,740

569,450

570,620

571,570

572,980

573,690

574,390

575,100

576,040

576,990

577,940

Apr.

579,120

580,540

581,730

582,680

-

584,810

586,000

586,710

587,420

587,900

588,610

589,320

589,800

590,510

591,460

591, «30

592,880

593,830

594,780

595,960

596,910

598,100

599,760

600,470

601,660

602,620

604,050

605,960

608,350

611,220

May

613,610

617,430

620,290

631,570

642,390

652,760

664,140

675,550

687,740

701,670

716,650

727,740

738,870

750,020

759,730

767,700

778,210

791,750

801,820

812,180

822,800

834,250

839,340

844,420

848,250

849,530

850,820

852,100

850,820

850,050

850,300

June

854,150

853,640

853,120

851,580

850,560

850,560

850,820

851,580

854,150

853,640

850,820

849,790

849,790

850,300

851,580

852,610

852,870

852,610

852,100

852,350

852,870

850,820

850,050

850,560

851,330

852,100

854,660

853,640

850,820

849,530

July

850,560

852,100

853,380

853,120

851,580

851,840

853,120

850,820

848,000

845,440

844,420

843,920

843,410

841,630

838,830

836,280

833,480

829,920

826,100

821,780

816,720

812,940

806,620

801,320

795,260

788,740

782,220

774,440

767,450

759,980

750,770

Aug.

742,580

735,160

729,720

719,350

712,720

708,790

705,350

701,670

699,210

695,300

693,590

691,150

686,710

685,790

681,890

677,500

67£,620

66f,810

66C,510

653,000

64? ,280

636,780

632", 050

625,800

61?, 340

613,370

607,400

601,660

596,200

591,690

589,080

Sept.

585,760

580,310

572,740

564,500

555,070

545,000

534,000

523,280

512,820

501,930

494,320

486,700

478,890

471,780

465,370

458,740

453,500

451,460

451,000

451,910

452,600

453,730

454,870

455,550

456,460

457,370

459,420

460,550

462,390

463,990

-

Monthly elevation and contents, water year October 1946 to September 1947

Date

Nov. 30.................. ....

Dec. 31. .....................

Calendar year 1946. ........

Sept. 30....... ...............

Elevation 

(feet)

6,754.65

-

6,769.13

6,753.15

Contents 

(acre-feet)

402,740

436,910

465,820

498,470

-

528,630

577,940

611,220

850,300

849,530

750,770

589,080

463,990

Change In contents 

during month 

(acre-feet)

_

+34,170

+28,910

+32,650

-153,330

+30,160

+21,280

+28,030

+33,280

i'39,080

-770

-98,760

-161,690

-125,090

+61,250
SNAKE RIVER MAIN STEM 15 

Snake River at Moran, Wyo.

Location - Water-stage recorder, lat.43°51', long. 110°35', in Sec. 18, T. 45 N., R. 114 

W., at Moran, 1,000 feet downstream from Jackson Lake Dam. Datum of gage is 6,725.61 

feet above mean sea level (Bureau of Reclamation bench mark).

Drainage area.- 816 square miles.

Records available.- September 1903 to September 1947.

Average discharge.- 44 years, 1,408 second-feet.

Extremes.- Maximum discharge during year, 8,660 second-feet June 9 (gage height, 9.38 

1'eet): minimum daily, 3 second-feet Apr. 15-28.

1903-47: Maximum discharge, 15,100 second-feet June 12', 1918 (gage height, 10.41 

feet, site and datum then in use); practically no flow for a few days in 1907 and 1909.

Remarks.- Records excellent except those for Oct. 1 to May 20, which are good. Flow reguiated by Jackson Lake (see preceding page).

CooperatJon.- Gage-height record furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

30

16

6

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

4

4

5

5

5

Nov.

5

4

4

4

4

4

4

4

4

4

4

4

4

4

4

5

5

5

5

4

4

4

4

4

4

4

4

4

4

5 4

5|

Dec.

4

4

4

4

4

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

b5

b5

b5

b5

b5

b5

b5

b5

Jan.

5

Feb.

> 5

-

-

~

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

Mnu nay. .......................................

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

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

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

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

Water year 1946-47 .... .................

Mar.

> 5

Apr.

5

5

5

5

5

5

5

5

5

5

5

5

5

5

3

3

5

3

3

3

3

3

3

3

3

3

3

3

18

16

"

Secondfoot-days

190

125

150

611,724

155

140

155

146

49, ,746

163,640

124,220

114,840

84,905

538,412

Hay

18

19

19

15

12

11

32

32

36

40

43

43

40

40

40

35

70

69

60

57

564

2,170

2,880

3,290

4,950

6,010

6,610

8,000

5,890

4,500

4,160

Maximum

30

5

5

8,850

_

_

_

18

8,000

8,090

5,880

5,740

6,540

8,090

June

7,220

8,090

8,010

7,040

5,220

5,240

5,240

5,540

7,603

8,010

5,380

4,120

3,980

3,950

4,190

5,300

5,930

5,930

5,740

6,640

7,870

5,410

3,260

3,260

3,290

1,370

6,720

7,190

3,890

1,810

"

Minimum

4

4

4

4

_

_

.

3

. 11

1,810

1,870

1,900

7

3

July

1,870

2,220

3,150

4,140

3,810

2,240

3,910

4,900

4,560

8,010

2,630

2,610

2,860

3,430

3,590

3,580

3,650

3,910

4,120

4,480

4,430

4,400

4,400

4,660

4,670

4,790

5,060

5,460

5,540

5,880

5,810

Aug.

5,740

5,620

5,570

5,140

3,850

3,340

2,990

2,860

2,810

2,810

2,680

2,300

2,290

2,560

3,100

3,340

3,610

4,100

4,730

4,920

4,960

4,620

4,060

4,020

3,950

3,780

3,770

3,770

3,360

1,900

2,290

Mean

6.1

4.2

4.8

1,676

5

5

5

4.9

1 , 605

5,455

4,007

3,750

2,850

1,475

Sept.

3,100

4,660

5,160

5,520

6,300

3,540

3,470

6,300

5,790

5,510

4,960

4,540

4,520

4,080

3,850

3,350

2,800

1,103

236

41

41

41

41

41

41

39

7

7

10

10

~

Runoff in 

acre-feet

377

248

298

1,213,000

307

278

307

290

98,670

324,600

246,400

227,800

168,400

1,069,000

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Jan. 1 to Mar. 31; discharge computed on basis of estimate of leakage 

through gates in dam above station.
16 SNAKE RIVER BASIN

Snake River below Greys River, at Alpine, Idaho

Location.- Wire-weight gage. 1st. 43°10'CO'', long. 111°02'30", in SW^ sec. 19, T. 

3V N. ~ R. 118 W. sixth principal meridian, Wyo., at State line bridge on U. S. 

highway 89, a qmrter of a mile south of Alpine. Idaho, post office, and 1-5- mil 

upstream from Salt River, and ?, miles downstream from Greys River.

Drainage area.- 3,940 square miles.

Records available.- October 1944 to September 1947.

Extremes.- Maximum discharge observed during year, 21,400 second-feet June 10 

 (gage height, 3.94 feet): minimirn daily, 1,400 second-feet Jan. 4-20; minimum

gage height observed, 2.69 feet Feb. 8.

1944-47: Maximum discharge observed, 22,400 second-feet June 7, 1946 (gage

height, 9.15 feet): minimum observed, 1,190 second-feet Mar. 6, Apr. 3, 1945

(gage height, 2.29 feet).

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

record, which are fair. Gage read once or twice daily. Diversions from tributaries above gage. Some regulation by Jackson Lake (see p. 14).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2,370

2,520

2,420

2,370

2,420

2,400

2,370

2,350

2,320

2,350

2,250

2,270

2,300

2,280

2,270

2,300

2,320

2,320

2,320

2,300

2,320

2,270

2,280

2,270

2,300

2,320

2,400

2,370

2,280

2,270

2,270

Nov.

2,230

2,230

2,030

2,030

2,080

2,110

2,150

2,150

2,130

2,080

2,070

2,030

2,050

2,030

2,070

2,030

2,050

2,030

2,070

2,030

1,950

2,020

2,030

2,070

2,070

2,050

2,070

2,110

2,110

2,070

-

Dec.

2,070

2,100

1,950

1,950

2,030

2,050

2,130

2,050

2,020

1,950

2,000

2,020

2,020

2,160

*2,050

1,970

1,750

1,520

1,650

1,700

1,730

1,810

1,780

1,860

1,750

1,790

1,760

1,710

1,660

1,600

1,540

Jan.

1,510

1,480

1,450

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

1,400

",400

1,450

1,450

1,450

1,450

1,600

1,650

1,600

1,540

1,540

1,540

1,540

Feb.

1,550

1,550

1,600

1,640

1,600

1,540

1,560

1,460

1,470

*1,600

1,580

1,560

1,620

1,590

1,600

1,620

1,600

1,590

1,590

1,560

1,580

1,590

1,590

1,560

1,540

1,520

1,490

1,460

_

_

-

Month

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

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

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

Calendar year 1945 ......................

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

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

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

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

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

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

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

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

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

Water year 1946 47 ......................

Mar.

1,450

1,450

1,540

1,540

1,530

1,520

1,500

1,530

1,530

1,580

1,500

1,530

1,520

1,530

1,*80

S

1,640

*1,730

1,810

1,840

1,890

1,910

1,970

2,100

2,030

2,000

1,970

1,970

1,970

2,030

2,200

2,220

Apr.

2,250

2,280

2,320

2,270

2,220

2,180

2,150

2,110

2,130

2,110

2,130

2,070

2,160

2,450

2,900

2,990

3,050

3,180

3,220

3,550

3,730

3,670

3,350

3,310

3,350

3,490

3,850

4,500

5,180

5,230

-

Secondfoot-days

72,170

62,230

58,130

2,053,470

45,050

43,810

54,110

89,380

399,570

472,100

328,630

223,000

150,100

1,998,290

May

5,200

6,390

8,080

10,500

12,000

12,600

13,200

14,300

15,500

15,700

16,200

14,400

12,900

11,900

10,900

11,100

11,700

12,000

11,600

10,800

10,700

11,800

13,300

13,200

13,900

16,200

17,300

18,800

18,000

15,500

13,900

Maximum

2,520

2,230

2,160

22,000

1,650

1,640

2,220

5,230

18,800

21,300

13,700

10,200

8,450

21,300

June

14,600

18,200

18,700

18,700

16,700

15,500

15,400

15,500

17,400

21,300

19,200

15,700

14,000

13,300

13,500

13,700

16,000

16,900

17,300

17,400

19,300

18,200

13,500

11,700

12,100

12,300

13,800

13,900

14,400

13,900

-

Minimum

2,250

1,950

1,520

1,400

1,400

1,460

1,450

2,070

5,200

11,700

9,140

4,680

2,330

1,400

July

10,200

9,140

9,700

10,300

11,100

12,100

11,000

13,700

13,600

12,100

11,200

10,700

10,700

10,700

10,400

10,400

10,300

10,500

10,300

10 , 400

10,400

10,600

10,300

9,940

9,840

9,620

9,840

9,900

9,980

9,940

9,730

Aug.

9,730

9,840

10,000

10,200

8,760

7,490

7,340

7,090

6,840

7,780

7,400

6,420

6,050

5,570

6,420

6,570

6,810

7,490

7,820

8,150

8,320

7,180

6,900

6,750

6,600

6,480

6,360

6,190

4,920

4,680

4,850

Mean

2,328

2,074

1,875

5,626

1,453

1,565

1,745

2,979

12,890

15,740

10,600

7,194

5,004

5,475

Sept.

5,410

6,160

7,060

7,310

8,050

8,420

8,450

as, 450

7,950

7,600

7,490

7,030

6,570

5,890

5,150

4,660

3,920

3,730

3,650

2,870

2,610

2,560

2,450

2,420

2,380

2,350

2,370

2,330

a2,350

2,380

Runoff in 

acre-feet

143,100

123,400

115,300

4,073,000

89,360

86,900

107,300

177,300

792,500

936,400

651,800

442,300

297,700

3,963,000

*"Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather r 

near Helse and at Moran.

Note.- Stage-discharge relation affected by ice Dec. 19, 20, Dec. 

to Mar. 2.

scords and records for s atlons 

28 to Feb. 2, Feb. 10, Feb. 27
SNAKE RIVER MAIN STEM 17

Snake River near Heise, Idaho

Location.- Water-stage recorder, lat. 43°37', long. 111°40', in sec. 5, T. 3 N., R. 41 E., 

3 miles upstream from Helse and 9,3 miles upstream from Henrys Fork. Altitude of gage, 

5,015 feet (from river-profile map).

Drainage area.- 5;740 square miles.

Records available.- September 1910 to September 1947, except winters of 1914-24. 

.Average discharge.- 37 years, 6,735 second-feet.

Extremes.- Maximum discharge during year, 25,900 second-feet June 10; maximum gage height, 

a.73 Jan. 3 (ice Jam); minimum discharge not determined, occurred during period of ice 

effect-, minimum gage height, 1.70 feet Mar. 1.

1910-47: Maximum discharge, about 60,000 second-feet May 19, 1927, result of washing out of landslide on Gros Ventre River (gage height, about 16.0 feet, present 

datum); minimum, 1,210 second-feet Jan. 22, 1935 (gage height, 1.15 feet).

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

 Station is above all irrigation diversions from uiin river except Riley ditch (4,690 

acre-feet diverted during year), which diverts 1 mile upstream from station. About 

II' 1 ,000 a?rej in Wyoming and Idaho irrigated by diversions from tributaries above 

station. Some regulation by Jackson Lake (see p. 14).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

fi

9

10

11

12

13

14

15

16

17

Ifi

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3,530

3,720

3,78O

3,703

3,610

3,650

3,700

3,670

3,610

3,610

3,530

3,460

3,530

3,460

3,460

3,550

3,610

3,550

3,480

3,420

3,400

3,360

3,480

3,530

3,480

3,460

3,530

3,803

3,720

3,610

3,510

Nov.

3,420

3,320

3,200

3,080

3,100

3,120

3,180

3,220

3,220

3,140

3,030

3,030

2,930

2,970

3,070

3,030

2,930

2,930

3,010

3,100

3,120

2,970

2,990

3,070

3,030

3,030

3,050

3,050

3,050

3,030

-

Dec.

3,070

3,010

2,930

2,880

2,910

3,080

3,240

3,220

3,120

3,030

2,970

3,030

3,100

3,220

3,440

3,!00

2,950

2,590

2,690

2,820

2,730

2,690

2,800

2,760

2,710

*2,730

2,860

2,860

2,670

2,620

2,480

Jan.

.

1

> 2,300

1

1

k

1

\ 2,100

|

1

I

^ 2,200

1

J

i

1

) 2,100

1

'

I

\ 2,300

1

>

2,600

2,500

*2,400

2,350

2,350

2,350

Feb.

k

I

> 2,400

I

>

..

> 2,400

I

>

2,400

2,450

2,500

2,550

2,550

2,600

*2,560

2,520

2,470

2,440

2 , 400

2,400

2,403

2,420

2,400

2,380

2,340

2,350

-

-

-

Month

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

Calendar year 1946 ......................

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

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

Water year 1946-47 ......................

Mar.

2,280

2,280

2,350

2,350

2,320

2,290

2,290

2,310

2,340

2,470

2,470

2,380

2,350

2,360

2,460

2,630

2,810

2,940

3,030

3,120

3,210

3,300

3,460

3,540

3,300

3,140

 3,030

2,990

3,010

3,270

3,680

Apr.

,3,730

3,730

3,860

3,880

3,660

3,480

3,360

3,270

3,250

3,210

3,190

3,150

3,170

3,520

4,410

5,110

5,360

5,480

5,510

5,980

6,320

6,420

6,110

5,840

5,760

6,040

6,680

7,550

8,580

9,020

-

Secondfoot-days

90,510

2,748,890

199,950

2,6-34,440

May

8,800

9,720

12,200

14,800

16.6CJ

17,500

17,700

18,500

19,400

19,800

20,100

20,000

18,200

16,700

15,500

14,800

15,000

15,500

15,100

14,100

13,600

14,100

15,500

16,000

16,000

17,900

19,900

21,100

22,100

18,700

16,600

Maximum

3,440

25,800

9,900

25,100

June

17,000

19,800

21,600

21,800

- 20 , 600

18,600

18,200

18,400

20,600

25,100

24,500

20,800

17,800

16,900

16,800

17,200

18,900

20,200

20,200

20,900

22,400

23,200

17,700

15,600

15,000

15,000

16,200

20,200

20,400

16,100

-

Minimum

2,480

2,100

3 150

3,600

-

July

12,700

11,700

11,900

13,200

15,000

15,000

13,300

14,400

16,000

15,900

14,600

13,000

12,400

12,000

12,300

12,400

12,300

12,100

12,000

12,100

12,500

12,200

12,300

11,900

11,800

11,500

11,400

11,200

11,600

11,500

11,900

Aug.

11,600

11,700

11,900

11,700

11,700

10,400

9,620

9,220

9,120

9,150

9,450

9,050

8,270

7,900

7,720

8,110

8,240

8,360

8,540

9,120

9,420

9,900

9,800

8,860

8,700

8,580

8,330

8,240

8,110

7,990

6,760

Mean

2,920

7,531

2 433

4 954

6,665

7, £18

Sept.

6,420

6,680

7,960

8,700

8,960

9,420

9,800

9,900

9,860

9,490

9,150

8,860

8,140

7,870

7,520

7,460

7,050

7,380

6,320

5,020

4,270

4,030

3,920

3,830

3,750

3,730

3,640

3,620

3,600

3,600

-

Runoff in 

acre-feet

179,500

5,452,000

000

396,600

5,226,000

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Jan. 1 to
18 SNAKE RIVER MAIN STEM

Diversions from Snake River between Heise and Shelley gaging stations, Idaho

Between Heise and Shelley gaging stations, 47 canals divert water from Snake River for 

irrigation; of these 36 divert above mouth of Henrys Fork. Records available during each 

irrigation season from 1919 to 1947. One of the canals is equipped with a water-stage 

recorder, the others with staff gages which are read once daily. Discharge combined to 

show total diverted flow. Records include Riley ditch which diverts 1 mile above Heise 

gaging station. Records good.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb. .

Month

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

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

Decembe r ...................................

Calendar year ......................

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

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

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

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

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

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

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

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

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

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

Mar. Apr.

Secondfoot-days

_

_

_

186 i 166

201 ,024

???' gpc

153*294

-

May

2,776

3,308

3,994

4,360

5,069

6,246

6,757

7,063

7,481

7,342

6,293

5,286

4,852

4,615

4,578

4,594

4,753

4,943

5,278

5,462

5,748

6,193

6,594

6,566

7,142

7,601

8,403

8,516

8,390

8,271

7,692

Maximum

_

_

8 p 516

8,493

9, 285

8 , 652

7,790

-

June

7,012

6,919

6,380

6,145

6,082

6,081

6,444

6,460

5,783

5,039

4,618

4,302

4,537

4,885

5,157

6,170

7,157

7,676

7,979

8 ,'451

8,493

8,146

7,885

8,008

8,080

8,056

7,756

7,433

7,022

6,868

-

Minimum

_

_

_

2 776

4^302

7,203

6,568

2 324

-

July

7,203

7,884

8,285

8,105

8,765

8,694

8,844

8,991

9,312

9,161

9,232

9,088

9,154

9,045

9,121

9,268

9,285

9,246

9,248

9,200

9,025

9,147

9,114

9,003

9,009

8,974

8,968

8,971

9,023

8,987

8,844

Aug. .

8,652

8,552

8,284

7,880

7,632

7,408

7,410

7,399

7,509

7,356

7,037

6,953

6,864

6,705

6,669

6,935

7,111

6,962

7,193

7,225

7,372

7,042

 ,960

6,568

6,760

6,716

6,714

6,736

6,661

6,909

6,696

Mean

_

_

6,005

6,701

7J191

5,110

-

Sept.

6,930

7,138

7,487

7,703

7,790

7,658

7,664

7,666

7,405

6,710

6,478

6,439

6,151

5,919

5,944

6,056

5,952

4,533

3,354

3,127

2,864

2,649

2,611

2,565

2,533

2,460

2,361

2,324

2,412

2,411

-

Runoff in 

acre-feet

_

369,300

398 , 7 00

547,800

442, 200

304,100

2,062,000
SNAKE RIVER MAIN STEM 19

Snake River near Shelley, Idaho

Location.- Water-stage recorder, lat. 43°25', long. 112°08', in sec. 17, T. IN., R. 3? 

E., a quarter of a. mile east of Woodville and 3 miles north of Shelley Altitude of 

gage, 4,596 feet (from river-profile map).

Records available.- March 1915 to September 1947 (summer months only during some years).

Extremes.- Maximum discharge during year, 26,800 second-feet June 12 (gage height, 12.20

 feet); minimum, 1,220 second-feet Sept. 3 (gage height, 4.39 feet).

1915-47: Maximum discharge, 47,200 second-feet June 17, 1918 (gage height, 16.97 

feet); minimum, 288 second-feet Nov. 5, 1934 (gage height 2.22 feet).

Maximum discharge known, 70,000 second-feet (estimated) June 6, 1894, at former 

station at Eagle Rock (now Idaho Falls), 7 miles upstream from present site.

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

 regulation by Jackson Lake (see p. 14), Henryp Lake (see p. 56), Island Park Reservoir (see p. 48), and Grassy Lake (see p. 56). Many diversions above station fol> 

irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?.

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

27,

24

25

26

27

28

29

30

31

Oct.

2,390

2,650

3,190

3,620

3,710

3,620

3,710

3,830

3,920

3,920

3,920

3,950

3,950

3,970

4,000

3,970

4,020

4,100

4,120

4,100

4,020

4,000

4,200

4,330

4,520

4,520

4,460

4,780

4,940

4,810

4,720

Nov.

4,640

4,520

4,410

4,330

4,220

4,250

4,360

4,460

4,460

4,410

4,410

4,300

4,220

4,140

4,100

4,250

4,070

3,750

3,590

3,710

3,830

3,970

3,800

3,900

3,920

3,900

3,850

3,830

3,800

3,800

-

Dec.

3,710

3,750

3,680

3,660

3,870

3,970

4,120

4,220

4,040

3,730

3,780

3,830

3,900

4,000

4,040

4,220

3,780

2,830

*2,950

3,200

3,350

3,550

*3,800

4,170

3,900

3,730

3,900

3,900

3,800

2,940

2,900

Jan.

2,600

2,400

2,000

1,700

1,600

1,700

1,900

2,000

2,200

2,300

2,370

2,300

2,300

2,300

2,200

1,900

1,800

1,800

1,900

2,200

*2,400

2,600

2,700

2,800

2,900

3,100

3,000

3,050

2,900

2,700

2,500

Feb.

2,550

2,500

2,400

2,5OO

2,700

2,800

2,750

2,700

2,600

2,600

E.460

2,650

2,850

*3,100

3,300

3,500

3,600

3,800

3,800

3,750

3,700

3,620

3,500

3,500

3,270

3,190

3,000

2,900

-

-

-

Month

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

Calendar year 1946 ......................

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

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

Water year 1946-47 ......................

Mar.

2,880

3,010

3,050

3,070

3,000

*2,980

2,920

2,830

2,830

2,900

3,070

3,090

2,980

2,880

2,880

3,070

3,480

3,780

3,950

3,870

3,850

3,920

4,040

4,140

4,200

3,970

3,640

3,520

3,400

3,330

3,730

Apr.

4,380

4,64O

4,810

4,94O

4,870

4,640

4,490

4,300

4,170

4,100

4,100

4,000

3,920

3,920

4,170

5,120

5,860

6,150

5,990

6,110

6,600

7,130

7,200

6,860

6,700

6,600

6,770

7,360

8,210

9,120

-

Secondfoot-days

123,960

123,200

115,220

2,362,080

122,990

2,164,820

May

9,570

9,430

10 , 200

12,800

15,200

16,300

16,400

16,000

15,800

16,400

17,800

19,100

19,100

17,900

17,000

16,400

15,600

15,400

15,300

14 , 300

12,800

11,500

11,500

11,800

11,500

11,100

12,000

13,100

14,300

14^800

12,300

Maximum

4,940

4,640

4,220

24,600

6,400

26,600

June

12,000

14,200

18,000

20,200

21,000

19,700

17,800

17,000

17,700

21,000

25,000

26,600

24,200

20,300

18,400

16,600

15,300

15,800

16,000

15,400

15,800

18,000

18,400

13,100

10 , 600

3,500

9,720

11,500

15,900

15,500

-

Minimum

2,390

3,590

2,830

1,350

3 920

1,620

1,600

July

10,700

' ,390

,020

,890

,930

,80O

' ,260

,790

,600

,770

,430

,440

,060

,640

,120

,330

'. ,330

'. ,140

,970

,000

,250

,440

'. ,200

,410

,270

,220

'. ,020

,800

,570

,730

,870

Aug.

4,300

4,580

5,150

5,830

6,150

6,340

5,380

4,580

4,250

4,120

4,300

4,550

4,410

3,870

3,370

3,010

3,030

3,210

3,250

3,270

3,590

4,220

5,030

5,190

4,750

4,360

4,070

3,750

3,570

3,350

3,110

Mean

3,999

4,107

3,717

6,471

5 ^35

4,100

5,931

Sept.

2,460

1,680

1,620

2,310

2,940

3,230

3,680

4,140

4,270

5,030

5,120

5,060

4,840

4,490

4,330

3,970

4,020

4,840

6,400

6,310

5,470

4,810

4,520

4,200

4,040

3,970

3,920

3,830

3,780

3,710

Runoff in 

acre feet

245,900

244,400

228,500

4,685,000

243,900

4,294,000

* Winter discharge measurement made on bhls day.

Note.- Stage-discharge relation affected by Ice Dec. 19-22, 28, 29, Dec. 31 to Feb. 21.
20 , SNAKE RIVER MAIN STEM

Diversions from Snake River between Shelley and Blackfoot gaging stations, Idaho

Between Shelley and Blackfoot gaging stations, 13 canals divert water from Snake River 

for irrigation. Records available during each irrigation season from 1919 to 1947. The 

two largest canals are equipped with recorders, the others with staff gages which are 

read once daily. Discharge combined to show total diverted flow. Records good.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

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

Calendar year ......................

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

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

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

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

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

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

Mar. Apr.

Secondfoot-days

_

_

60,433

-

Hay

2,355

2,614

3,025

3,344

3,582

3,769

3,800

3,802

3,775

3,286

2,504

2,416

2,674

2,680

2,726

2_,834

2,810

2,976

2,974

3,017

3,178

3,443

3,637

3,781

3,817

3,897

3,987

4,037

3,993

3,947

3,655

Maximum

_

_

_

3,041

-

June

3 , 528

3,540

3,204

3,175

3,269

3,192

3,183

2,988

2,696

2,200

1,721

1,314

1,339

1,401

1,564

2,035

2,328

2,481

2,504

2,941

3,119

3,255

3,272

3,313

3,446

3,319

3,314

3,480

3,131

2,954

-

Minimum

_

_

_

2 ^55

1,164

-

July

3,372

3,612

3,576

3,651

3,691

3,868

3,788

3,667

3,851

3,909

3,841

3,799

3,574

3,605

3,477

3,582

3,692

3,696

3,675

3,700

3,728

3,755

3,690

3,758

3,710

3,674

3,651

3,601

3,449

3,523

3,616

Aug.

3,482

3,147

3,018

2,956

2,920

2,920

3,147

3,222

2,726

2,594

2,338

2,624

2,657

2,854

2,876

2,827

2,784

2,925

2,997

2,990

3,161

3,295

2,987

3,149

3,130

3,070

3,226

3,262

3,292

3,210

2,801

Mean

_

_

_

2,014

-

Sept.

1,472

1,164

1,295

2,309

2,542

2,597

2,853

2,860

2,779

2,747

2,645

2,655

2,949

3,041

2,673

2,700

2,752

1,930

1,425

1,353

1,272

1,303

1,305

1,390

1,423

1,382

1,370

1,402

1,425

1,420

-

Runoff in 

acre-feet

_

_

_

119,900

897,100
SNAKE RIVER MAIN STEM 21

Snake River near Blackfoot, Idaho

Location.- Water-stage recorder, lat. 43°07', long. 113°31', in SE£ sec. 3C, T. 3 S., R. 

34 jj., a quarter of a mile downstream from Blackfoot River and 14 miles southwest of 

Blackfoot. Altitude of gage, 4,401 feet (from river-profile map).

Records available.- June 1910 to September 1947.

Extremes.- Maximum discharge during year, 25,000 second-feet June 12 (gage height, 10.80 

feet); minimum, 215 second-feet Sept. 6 (gage height, 0.57 foot).

1910-47: Maximum discharge, 46,200 second-feet June 18, 1918 (gage height, 14.80 

feet); minimum, 111 second-feet Nov. 10, 1934 (gage height, 0.80 foot).

Late in summer of 1905 there was no flow in Snake River for a distance of 10 miles 

in vicinity of Blackfoot. On Aug. 9, 1905, discharge of Snake River jus*; below mouth 

of Blackfoot River was 39 second-feet, supplied by ground-water inflow a short distance upstream.

Remarks.- Records excellent. Some regulation by Jackson Lake (see p. 14) Henrys Lake 

(see p. 56), island Park Reservoir (see p. 48), Grassy Lake (see p. 56) ( and BlackfootMarsh Reservoir, having a combined capacity of 1,483,000 acre-feet. Man;r diversions 

above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

1?,

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

969

1,280

1,910

2,500

3,080

3,160

3,140

3,220

3,410

3,530

3,530

3,510

3,830

3,790

3,830

3,790

3,810

3,880

3,920

3,970

3,900

3,850

3,920

4,030

4,23O

4,210

4,170

4,410

4,650

4,650

4,590

Nov.

,570

,480

,350

,330

,260

,320

,410

,460

,260

,230

,210

,190

,170

,120

,880

,170

,080

. ,030

,990

,940

,990

,060

,030

4 ,010

,050

,120

,100

,060

,030

,900

-

Dec.

3,850

3,880

3,850

3,780

3,9OO

4,050

4,100

4,210

4,280

3,970

3,880

3,970

3,970

4,060

4,150

4,240

4,010

3,290

2,500

3,030

3,370

3,780

3,830

3,610

3,970

3,940

3,900

3,870

3,650

2,920

2,570

Jan.

2,520

2,100

1,640

1,420

1,180

1,380

1,570

1,750

1,990

2,300

2,370

2,020

2,090

2,160

1,880

1,620

1,670

1,620

1,580

1,750

1,820

1,970

2,080

2,390

2,570

2,820

2,640

2,800

2,760

2,410

2,280

Feb.

2,34,0

2,280

2,140

2,210

2,500

2,640

2,560

2,420

2,410

2,460

2,240

2,250

2,540

2,690

3,030

3,300

3,420

3,580

3,790

3,700

3,560

3,540

3,440

3,340

3,320

3,140

2,960

2,760

_

-

-

Month

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

Calendar year 1946 ......................

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

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

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

Water year 1946-47 ...... ...............

Mar.

2,540

2,640

2,800

a2,900

a3,000

a3,050 '

3,030

2,870

2,820

2,860

2,930

%240

3,110

3,010

2,880

2,980

3,290

3,650

3,850

3,940

3,870

3,960

4,010

4,150

4,260

4,030

3,760

3,540

3,440

3,300

3,410

Apr.

3,960

4,350

4,420

4,610

4,710

4,540

4,390

4,210

4,080

3,920

3,920

3,900

3,780

3,700

3,780

4,260

4,120

5,510

5,630

5,730

5,870

6,490

6,680

6,350

5,930

5,870

5,690

5,870

6,070

6,660

-

Secondfoot-days

116,380

1,939,749

67,821

1,671,296

May

7,130

6,680

6,560

7,790

9,750

11,300

11,600

11,400

11,200

11,800

13,900

15,700

16,400

15,300

14,200

13,700

13,000

12,400

12,400

11,600

9,950

8,440

,610

,790

,850

,200

,360

8,420

9,480

1O,60O

9,590

Maximum

4,280

23,500

5,330

24,300

June

8,370

9,590

12,700

15,800

17,000

17,200

14,900

14,100

14,700

16 , 900

21,200

24,300

24,300

20,600

17,500

15,500

13,300

13,300

13,500

12,7OO

11,800

13,400

15,200

11,300

7,920

6,400

6,29O

7,230

10,300

13,000

-

Minimum

2,500

226

6 290

218

218

July

9,480

5,030

3,160

2,390

2,880

3,790

4,010

2,700

2,180

3,560

3,990

3,250

2., 310

1,530

1,090

800

772

709

564

460

546

824

793

779

832

709

695

588

440

340

350

Aug.

534

1,460

1,930

2,800

3,190

3,490

2,880

1,810

1,790

1,760

2,100

2,450

2,350

1,560

987

630

400

350

415

380

385

800

1,620

2,080

1,860

1,540

1,190

816

510

460

318

Mean

3,754

5,314

1 447

2,261

4,579

Sept.

716

667

480

326

262

218

395

987

1,420

1,820

2,500

2,570

2,520

1,860

1,800

1,920

1,610

2,520

4,440

5,330

4,780

4,170

3,760

3,460

3,O80

3,010

2,960

2,810

2,740

2,690

-

Runoff in 

acre-feet

230,800

3,847,000

134,500

3,315,000

a No gage-height record, discharge computed on basis of records for station near- Shelley.
SNAKE RIVER MAIN STEM

American Falls Reservoir at American Falls, Idaho

Location.- Water-stage recorder, lat. 42°46', long. 112°53', in sec. 30, T. 73., R. 31 

E., at outlet gates of reservoir on Snake River at American Falls. Datum of gage is 

at mean sea level (levels by Bureau of Reclamation).

Records available.- March 1996 to September 1947.

Extremes.- Maximum contents during year, 1.720,880 acre-feet June 11 (elevation, 4,354.87 

feet); minimum, 649,450 acre-feet Sept. 18 (elevation, 4,331.03 feet).

19?6-47 : Maximum contents, 1,726,580 acre-feet June 10, 1938 (elevation, 4,354.97 

feet): minimum since full capacity was attained on July 13, 1927, 17,200 acre-feet 

Oct. 2P, 1931 (elevation, 4,299.72 feet).

Cooperation.- Reservoir elevations and capacity table furnished by Bureau of Reel imation.

Contents, in acre-feet, water year October 1946 to September 1347

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

721,430 

724,240 

732,310 

734,420 

743,900

754,520 

760,650 

765,330 

770,020 

777,960

780,120 

786,610 

795,120 

805,870 

812,170

816,990 

823,660 

828,600 

835,080 

843,850

853,760 

860,230 

861,380 

868,810 

874,690

882,140 

895,480 

906,210 

913,490 

921,980 

929,260

Nov.

933,310 

945,970 

955,990 

968,920 

976,440

985,250 

992,970 

1,001,130 

1,005,420 

1,014,430

1,026,020 

1,032,170 

1,035,690 

1,040,100 

1,041,860

1,049,340 

1,056,820 

1,066,510 

1,069,590 

1,071,370

1,079,490 

1,085,350 

1,087,600 

1,093,920 

1,104,290

1,109,700 

1,116,020 

1,119,710 

1,123,860 

1,129,390

Dec.

1,137,630 

1,147,370 

1,151,520 

1,154,280 

1,157,970

1,162,600 

1,165,900 

1,172,020 

1,181,440 

1,187,090

1,185,200 

1,189,910 

1,196,510 

1,203,100 

1,208,280

1,221,220 

1,226,500 

1,228,890 

1,227,450 

1,231,770

1,233,690 

1,237,530 

1,248,560 

1,252,390 

1,255,750

1,258,660 

1,258,660 

1,266,450 

1,276,190 

1,283,010 

1,285,440

Jan.

1,285,930 

1,285,930 

1,285,440 

1,283,980 

1,281,550

1,279,600 

1,278,620 

1,279,600 

1,280,570 

1,282,520

1,283,490 

1,285,440 

1,285,930 

1,287,390 

1,289,340

1,289,830 

1,289,830 

1,289,830 

1,288,360 

1,287,880

1,286,900 

1,285,930 

1,284,960 

1,283,980 

1,284,470

1,284,960 

1,287,350 

1,288,850 

1,288,850 

1,290,310 

1,289,830

Feb.

1,290,800 

1,289,340 

1,290,310 

1,290,800 

1,289,830

1,290,310 

1,291,770 

1,291,770 

1,292,260 

1,293,230

1,294,210 

1,294,700 

1,296,160 

1,298,590 

1,301,030

1,306,400 

1,314,810 

1,318,770 

1,323,720 

1,328,180

1,331,640 

1,335,600 

1,343,030 

1,352,430 

1,357,430

1,360,960 

1,363,480 

1,365,500

Mar.

1,369,030 

1,373,570 

1,377,600 

1,383,140 

1.38P ,700

I,39i3,770 

1,401,840 

1,413,050 

1,422,310 

1,43?, 590

1,439,790 

1,448,530 

1,457,280 

1,464,090 

1,471,940

1,481,370 

1,491,320 

1,50:>,220 

1,510,180 

1,518,170

1,521,560 

1,53^,140 

1,540,000 

1,551,710 

1,563,710

1,573,230 

1,587,360 

1,594,420 

1,60?, 030 

1,610,180 

1,617,250
SNAKE RIVER MAIN STEM

in acre-feet, of American Palls Reservoir at American Palls, Idaho, 

water year October 1946 to September 1947 Continued

Day

1

2

j

4

5

6

7

8

9

10

11

12

13

14

15

16

17

19

19

20

21

22

23

24

25

2$

27

28

23

30

31

Apr.

1,528,300

1,632,730

1,642,120

1,640,470

1,652,630

1,655,940

1,663,680

1,669,210

1,670,870

1,669,760

1,672,540

1,675,340

1,675,900

1,677,020

1,680,940

1,678,700

1,681,500

1,675,900

1,678,700

1,679,260

1,680,380

1,687,110

1,689,350

1,694,403

1,697,760

1,699,440

1,700,000

1,693,440

1,692,710

1,683,750

-

May

1,688,230

1,687,110

1,684,870

1,680,380

1,678,140

1,679,260

1,684,870

1,688,230

1,638,790

1,695,520

1,703,920

1,711,760

1,711,760

1,711,760

1,708,400

1,703,920

1,708,400

1,709,520

1,712,330

1,712,900

1,702,800

1,704,480

1,703,360

1,700,560

1,699,440

1,696,640

1,697,760

1,639,350

1,687,110

1,688,790

1,639,350

June

1,694,400

1,698,320

1,705,600

1,715,750

1,719,740

1,716,890

1,713,470

1,706,160

1,704,480

1,716,320

1,720,880

1,717,460

1,715,180

1,711,200

1,707,840

1,705,600

1,709,520

1,714,040

1,716,320

1,712,330

1,719,170

1,706,160

1,706,720

1,710,080

1,705,600

1,701,680

1,694,960

1,690,470

1,638,230

1,693,270

-

July

1,703,000

1,697,760

1,687,670

1,677,020

1,664,790

1,651,520

1,642,120

,630,520

,618,350

,603,660

,588,990

,582,470

,568,880

,554,370

,536,800

1,521,900

1,504,930

1,489,220

1,471,420

1,454,190

1,436,190

1,419,740

1,402,310

1,385,170

1,369,030

1,354,410

1,336,590

1,318,770

1,302,490

1,285,930

1,283,830

Aug.

1,252,870

1,238,960

1,225,540

1,213,550

1,202,630

1,193,680

1,183,790

1,172,960

,158,890

,143,220

,116,940

,037,520

,087,603

,074,980

,059,910

1,045,380

1,028,210

1,014,000

998,980

983,530

966,840

948,890

938,160

925,620

913,090

900,180

886,850

874,300

859,470

844,230

832,030

Sept.

818,100

303,650

787,340

776,150

760,650

747,410

731,960

721,430

708,980

399,410

692,920

685,410

674,350

673,680

664,050

658,080

652,430

649,450

650,110

655,090

661,730

667,370

672,350

676,340

678,990

679,990

631,990

684,380

684,040

686,770

-

Monthly elevation and contents, water year October 1946 to September 1947

Date

Calendar year 1946...

Water year 1946-47...

Elevation 

(feet)

343 30

-

354 21

Contents 

(acre-feet)

1 129 390

-

Change in contents 

during month 

(acre-feet)

+68,060

+3 920

-32,200
24 SNAKE RIVER MAIN STEM

Snake River at Neeley, Idaho

Location.- Water-stage recorder, la.t. 42°45', long. 112°54 I , in SW£ sec. 31, T. VS., R. 

31 K. , 0.9 mile downstream from American Falls Dam. Datum of gage is 4,241.4 feet 

above mean sea level (river-profile survey). Records computed to show flow at former 

site in sec. 11, T. 8 S., R. 30 E., half a mile north of Neeley and Z\ miles downstream from present site, by adding inflow between sites.

Records available.- March 1906 to September 1947.

Extremes.- Maximum discharge during year, 27,600 second-feet June 11 (gage height, 9.44 

I'eet); minimum, 70 second-feet on several days (gage height, 0.94 foot).

1906-47: Maximum daily discharge, 48,400 second-feet June CO, 1918 (gage height, 

13.5 feet, site and datum then in use); minimum, 50 second-feet Oct. 22, 23, Nov. 14- 

16, 1941.

Remarks.- Records excellent. Flow regulated by American Falls Reservoir (see p. 22)

and other reservoirs, having a combined usable capacity of 3,200,000 acre-feet. About 

700,000 acres of land irrigated by water diverted from river and tributaries above 

station.

Cooperation.- Gage-height record furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

10

11

13

15

16

17

18

19

20

21

22

23

24

2b

26 HI

28

29

30

31

Oct.

2,680

2,870

2,890

2,820

2,480

70

3,100

3,780

3,840

3,840

3,840

3,860

78

3,830

3,860

3,780

3,860

3,880

3,900

75

3,860

3,960

3,980

3,980

3,980

3,930

75

3,700

3,610

3,590

3,590

Nov.

3,610

3,600

75

3,360

3,390

3,130

3,100

4,990

5,070

70

4,980

4,990

5,040

5,040

5,040

5,040

71

5,110

5,120

5,040

4,980

5,040

5,040

70

5,070

5,180

5,090

5,060

4,560

4,430

-

Dec.

71

4,940

4,080

4,110

5,110

5,140

5,130

79

5,090

5,060

5,050

5,080

5,080

5,070

104

5,060

5,080

5,090

5,110

5,080

5,080

77

5,090

5,080

5,060

5,060

5,120

5,120

82

5,150

5,320

Jan.

5,090

5,090

4,090

5,480

4,190

6,140

4,190

3,960

3,950

4,280

4,390

4,450

4,430

4,450

4,430

4,390

4,390

5,240

4,390

5,240

5,230

5,240

5,240

5,270

5,250

4,420

5,250

5,250

5,280

5,270

5,250

Feb.

5,250

4,390

4,210

5,210

5,210

5,210

5,210

5,210

4,370

5,210

5,210

4,350

4,230

4,240

. 4,240

1,460

4,270

4,290

4,300

4,300

4,310

4,200

90

4,200

4,230

4,230

4,350

3,760

_

-

Month

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

Calendar year 1946 ......................

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

May

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

Water year 1946-47 ......................

Mar.

3,630

2,260

4,180

3,390

1,800

1,800

1,790

1,790

87

1,800

1,800

1,800

1,810

1,790

1,810

89

1,810

1,810

1,810

3,280

1,820

1,830

93

1,860

1,870

1,860

1,860

1,840

1,830

86

2,260

Apr.

3,450

3,480

3,760

4,600

4,570

4,570

4,660

4,940

4,940

5,390

5,780

5,780

5,780

5,780

6,280

7,130

7,610

7,560

7,560

7,560

7,560

6,960

6,440

6,440

7,300

7,740

8,280

9,980

10,900

10,600

Secondfoot-days

132,853

2,976,585

226,090

2,701,202

May

9,840

10,200

10,900

11,900

12,500

11,900

11,400

11,500

11,500

11,500

12,600

16,700

18,900

18,800

18,800

15,600

13,900

13,900

14,000

16,500

15,500

12,300

10,400

11,000

11,400

11,400

11,600

11,500

11,400

11,100

10,500

Maximum

5,320

26,900

10,700

27,400

June

10,000

9,650

9,560

13,900

19,700

20,100

21,800

19,400

12,700

17,200

23,500

27,400

27,300

25,900

22,900

17,600

13,900

13,900

15,600

16,500

17,000

16,400

15,700

15,200

13,100

10,500

11,500

12,000

12,000

11,700

Minimum

71

70

4,410

70

July

11,500

11,500

11,400

11,600

11,600

11,600

11,500

11,400

11,600

11,500

11,300

11,400

11,700

11,900

12,000

11,900

11,900

11,800

11,800

11,800

11,900

11,800

11,800

11,700

11,800

11,900

11,300

12,'jnu

11,800

11,500

11,400

Aug.

11,400

11,300

11,300

11,200

10,900

10,600

10,700

11,000

11,200

11,600

11,700

11,700

11,600

11,500

11,400

11,300

11,300

11,100

11,000

11,100

11,200

10,900

11,100

11,100

11,100

11,100

11,100

11,000

10,900

10,800

10,700

Mean

3 14°

4,286

8,155

7,536

7,401

Sept.

10,700

10,700

10,600

10,600

10,500

10,300

10,100

9,650

9,230

9,180

9,000

8,590

8,460

8,360

8,100

7,830

7,560

5,400

5,510

5,050

4,740

4,770

4,770

4,880

5,160

5,390

5,390

5,390

4,770

4,410

-

Runoff in 

acre-feet

263,500

5,904,000

448,400

5,358,000
?NAKE RIVER MAIN STEM 25

Lake Walcott near Minidoka, Idaho

Location.- Staff gage, lat. 4?°4Q< , long. 113°P9', in sec. 1, T. 9 S., R. 25 E., in powerHouse at Minidoka Darn on Snake River, 6 miles southeast of Minidoka. Datum of gage is 

4,SOn'.00 feet above datum of Bureau of Reclamation, which is 49.52 feet below mean sea 

level.

Records available.- April 1909 to September 1947.

Extremes.- Maximum contents during year, 100,010 acre-feet June 5 (gage height, 45.40 

feet); minimum, 63,590 acre-feet Dec. 2, 30 (gage height, 42.21 feet).

1909-47: Maximum contents, 110,740 acre-feet Aug. 8, 1922 (gage height, 46.28 

feet); minimum, -101,410 acre-feet Nov. 17, 1941 (gage height, 15.19 feet).

Remarks.- Reservoir is formed by rock-fill dam with concrete core; storage began in 1909. 

Capacity, 107,240 acre-feet between gage height 36.00 feet (sill of powerhouse penstock) 

and 46.00 feet (top of flashboards). Dead storage, about 115,000 acre-feet. Gage read 

at P a.m. and 4 p.m. Contents given herein are computed from mean gage heights. Water 

used for power development and irrigation on Minidoka project of Bureau of Reclamation.

Cooperation.- Gage-height record and capacity table furnished by Bureau of Reclamation.

Contents, in acre-feet, water year October 1946 to September- 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

80, SIC

80,830

81.85C

81.06C

81.28C

80.16C

76.32C

78,13t

76.89C

79,140

78.69C

78.58C

78.13C

72.26C

72.49C

72.26C

72.94C

72.72C

73.39C

72.94C

67.65C

68.53C

67.43C

70.29C

71,170

72,49C

72.60C

67,870

68.53C

69,520

70.29C

Nov.

69,630

71,280

71.61C

66,99C

68.09C

69.19C

69,740

70.29C

71,830

72.26C

65.89C

67.21C

68.53C

69.63C

70.62C

72,830

72,720

65,33C

68.09C

69.41C

71,610

72.94C

73,620

72,260

66,550

67,980

69,740

70,950

71,940

72,260

-

Dec.

70,400

63.590

64,800

66,550

67,870

69,850

70,730

70,950

63,920

65,560

66,330

67,650

69,850

71,170

70,290

63,810

65,890

66,990

37,870

70,070

72,050

70,400

63,920

65,450

66,330

68,090

68,530

70,400

70,510

63,590

65,670

Jan.

67,870

69,300

70,620

71,830

74,290

74,290

73,960

72,490

71,500

70,730

70,730

70,730

70,730

71,060

70,950

70,950

70,950

71,170

72,260

72,260

73,500

74,070

74,290

74,410

74,410

74,070

73,500

74,070

73,840

74,410

74,290

Feb.

74,410

74,070

73,390

75,840

74,070

74,520

74,520

73,840

73,280

72,260

74,290

74,520

73,840

73,620

73,170

73,280

68,750

69,630

69,850

70,510

70,950

71,280

69,740

64,360

65,230

65,670

66,770

67,210

_

-

-

liar.

68,310

68,090

68,750

69,410

69,850

70,290

71,390

72,050

71,830

70,730

69,410

72,260

73,050

73,390

73,620

72,490

70,730

70,950

71,390

71,610

74,290

73,840

70,840

69,190

70,730

69,630

70,950

71,610

71,940

71,170

67,870

Apr.

68,420

68,420

68,860

68,530

69,410

68,640

68,750

68,750

67,430

66,990

71,060

72,490

73,840

74,520

75,870

77,110

79,480

82,190

85,980

88,780

90,880

93,320

93,320

93,200

92,510

92,270

91,570

91,460

91,690

90,290

-

May

92,860

91,460

91,230

90,990

92,390

94,950

94,950

94,950

94,020

94,720

94,950

97,590

98 , 800

99,040

98,680

97,350

97,840

97,720

97,840

98,080

96,870

97,840

97,350

96,390

96,750

96,630

96,750

95,070

94,720

95,910

95,430

June

96,870

97,960

98,560

98,680

100,010

98,320

97,590

98,320

96,390

99,520

99,040

99,640

99,880

99,640

99,880

97,110

96,390

96,630

96,270

95,550

97,110

96,390

96,150

95,670

95,180

94,950

93,090

95,430

97,350

99,280

-

July

99,760

99,520

99,160

99,040

99,640

99,520

99,040

98,800

98,320

97,350

96,150

96,870

96,630

96,750

95,430

96,150

97,110

97,840

97,110

97,350

97,840

96,990

96,390

97,110

96,870

97,350

97,590

97,590

98,320

98,680

98,320

Aug.

98,320

98,560

97,960

97,590

97,840

98,080

97,840

98,080

96,510

94,950

95,910

94,600

96,030

96,510

97,350

97,350

97,110

97,590

97,350

95,990

96,270

95,180

95,910

95,790

95,910

95,670

95,670

95,670

96,270

95,310

95,430

Sept.

95,430

95,910

95,430

95,910

95,910

96,150

95,550

95,790

94,950

94,250

95,310

95,670

93,320

95,790

96,270

97,590

98,080

99,760

98,560

97,350

95,670

94,490

93,550

93,090

93,090

92,390

93,090

93,900

94,720

94,950

-

Monthly gage height and contents, water- year October 1946 to September 1947

Date

Calendar year 1946...

Sept. 3d. ...............

Water year 1946-47...

Gage height 

(feet)

-

44.98

-

Contents 

(acre-feet)

-

90 290

94,950

-

Change In contents 

during month 

(acre-feet)

-6,380

-480

+11,180

881401 O - 50 - 3
26 SNAKE RIVER MAIN STEM

Snake River near Minidoka, Idaho

Location.- Water-stage recorder, lat. 42°40', long. 113°30', in sec. 2, T. 9 S., R. 25 

E., 1 mile downstream from Hinidoka Dam and 6 miles southeast of Hinidoka. Datum of 

gage is 4,132.2 feet above mean sea level (river-profile survey).

Records available.- April 1910 to September 1947. August 1895 to December 1899 and May 

1901 to December 1910 at site at Montgomery Ferry, 6 miles downstream.

Extremes.- Maximum discharge during year, 27,000 second-feet June 12 (gage height, 12.76 

feet); minimum, 1,160 second-feet Mar. 5 (gage height, 3,78 feet).

1910-47: Maximum discharge, 45,900 second-feet June 21, 1918 (gage height, 16.02 

feet); minimum, 59 second-feet Nov. 18, 1936 (gage height, 1.56 feet).

Remarks.- Records good. Plow regulated by American Palls Reservoir (see p. 22), Lake 

Walcott (see preceding page), and other1 reservoirs, having a combined opacity of 

about 3,300,000 acre-feet; and greatly reduced by diversions above station for irrigation.

Cooperation.- Gage-height record furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

.19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2,170

2,340

2,100

2,120

2,060

1,970

1,960

2,100

3,680

3,430

3,470

3,490

3,450

3,510

3,560

3,580

3,530

3,580

3,530

3,510

3,490

3,490

3,530

3,560

3,580

3,580

3,470

3,450

3,450

3,450

3,430

Nov.

3,450

,450

,410

,070

,840

,840

,840

,660

,560

,520

,500

'. ,540

' ,520

'. ,500

,590

,560

,340

,520

'. ,520

,59O

,560

,600

,640

,640

,560

,540

,540

,540

,540

,630

-

Dec.

,630

'. ,500

' ,520

,520

,520

,520

' ,520

'. ,520

' ,520

,520

* ,540

'. ,560

'. ,560

,560

,560

,560

,540

,520

,540

,560

,560

,54O

,500

,500

,520

,520

,560

b4,500

b4,410

b4,390

b4,300

Jan.

b4,480

b4,500

b4,610

b4,700

b4,850

b4,920

b5,190

b4,940

fb4,720

b4,700

b4,810

b4,650

b4,650

b4,520

b4,520

b4,610

b4,740

b4,760

b5,010

b4,960

b5,080

*t5,330

b5,440

b5,420

5,520

5,490

5,140

b5,140

b5,100

b5,100

b5,300

Feb.

5,440

5,370

5,240

,260

,370

,400

,590

,680

,400

,810

,850

,050

'. ,920

'. ,760

,670

,260

,190

,190

* ,230

,280

,340

,340

,390

,170

,120

,080

,170

,740

_

-

-

Month

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

Calendar year 1946 ......................

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

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

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

Water year 1946 47 ......................

Mar.

3,330

3,350

3,350

3,350

2,160

1,660

1,660

1,670

1,700

1,610

1,660

1,670

1,730

1,920

2,020

1,980

1,810

1,800

1,830

1,920

2,170

2,100

1,980

1,850

1,840

1,840

1,900

1,930

1,880

1,880

2,610

Apr.

3,270

3,310

3,290

4,500

4,980

5,080

4,940

4,940

5,080

4,920

4,210

4,980

5,010

4,980

4,940

4,940

5,010

5,140

5,080

5,120

5,140

5,140

5,170

5,170

5,350

5,830

6,230

6,850

7,020

8,000

-

Secondfoot-days

140,090

2,649,540

174,490

2,333,590

May

7,530

7,590

7,910

8,360

8,390

8,330

8,210

8,270

8,420

8,390

8,930

12,700

16,000

16,6OO

17,100

14,700

11,600

11,700

11,800

'13,600

14,400

10 , 200

7,850

7,910

8,360

8,330

8,930

8,660

8,180

7,910

7,700

Maximum

3,680

4,630

25,100

5,520

5,680

3,350

8,000

17,100

8,990

8,240

26,800

June

7,240

7,020

7,100

9,980

17,600

18,700

19,900

19,100

11,800

15,300

21,400

26,400

26,800

25 , 700

24,300

19,100

13,500

13,300

14,100

15,500

15,900

15,500

14,700

13 , 80O

12,100

8,3ao

8,570

8,000

8,420

8,330

-

Minimum

1,960

2,840

4,300

1,060

4,480

3,740

1,610

3,270

7,530

7,020

8,090

7,970

2,840

1,610

July

8,210 '

8,090

8,150

8,360

8,480

8,480

8,300

8,480

9,110

8,750

8,570

8,660

8,840

9,080

9,020

8,840

8,540

8,600

8,900

8,900

8,870

8,780

8,660

8,810

8,930

B.840

8,840

8,840

8,870

8,540

8,510

Aug.

8,600

3,720

3,720

8,540

8,150

7,970

8,150

8,510

8,750

8,990

8,990

8,750

8,600

8,360

8,300

8,330

8,390

8,330

8,300

8,390

8,450

8,480

8,480

8,450

8,450

8,420

8,360

8,120

8,060

8,330

8,390

Mean

3,149

4,187

4,519

7,259

4,932

4,725

2.C70

5,121

10,140

14.J20

8,873

8,446

5,816

6,393

Sept.

8,240

8,030

8.09Q

8,030

8,000

7,760

7,680

7,530

7,180

7,020

6,680

6,410

6 , 440

6,100

5,850

5,640

5,490

5,350

5,190

4,830

4,410

4,300

4,150

4,020

4,000

4,210

4,060

3,950

3,010

2,840

~

Runoff in 

acre-feet

193,600

249,100

277,900

5,255,000

303,300

262,400

127,300

304,700

623, 9OO

887,700

533 , 300

519,300

346,100

4,629,000

* Winter discharge measurement made on this 

b Stage-discharge relation affected by,ice.
SNAKE RIVEK MAIN STEM 27 

Snake River at Milner, Idaho

Location.- Water-stage recorder, lat. 42°32', long. 114°01', in sec. 29, T. 10 S., R. 21 

bi., at Milner, a quarter of a mile downstream from Milner Dam. Altitude cf gage, 4,062 

feet (from river-profile map).

Records available.- May 1909 to September 1947.

Extremes.- Maximum discharge during year, 21,300 second-feet June 13 (gage height, 19.62 

reetj; minimum, 10 second-feet Aug. 1, 2 (gage height, 1.64 feet).

1909-47: Maximum discharge, 44,400 second-feet June 12, 1909 (gage height, 20.10 

feet, site and datum then in use); minimum, 2 second-feet Mar. 17-28, 1936 (gage height, 

1.18 feet).

Remarks.- Records good. Flow regulated by American Falls Reservoir (see p. 22), Lake 

Waicott (see p. 25), and other reservoirs, having a combined usable capacity of about 

3,300,000 acre-feet, and greatly reduced by diversions above Milner Dam fo- irrigation. 

About 1,300,000 acres of land irrigated by diversion from river and its tributaries 

above station. Flow includes some stored water released for use downstream by Idaho 

Power Co.

Cooperation.- Gage-height record furnished by Twin Palls Canal Co. and North Side Canal Co.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

99

326

587

688

688

688

638

698

762

2,260

2,920

3,000

2,990

2,880

2,780

2,740

2,890

2,930

2,890

2,870

2,930

2,970

2,580

2,800

3,220

3,090

3,240

3,220

3,160

2,810

1,820

Nov.

1,590

2,210

2,470

2,530

2,160

2,160

2,340

2,500

3,460

3,830

3,650

3,640

3,670

3,730

3,810

3,830

3,690

2, -980

3,220

3,850

4,230

3,950

3,840

3,840

3,860

3,720

3,730

3,640

3,760

3,810

-

Dec.

3,910

3,880

3,670

3,530

3,570

3,700

3,600

3,690

3,700

3,600

3,510

3,280

2,220

3,030

3,530

3,310

3,910

3,300

2,380

3,590

4,830

4,430

3,760

4,290

4,250

4,180

3,970

3,690

3,640

3,600

3,380

Jan.

3,350

3,630

3,710

3,840

4,000

4,030

4,440

4,690

4,240

3,950

3,970

3,850

3,670

3,680

3,5OO

3,560

3,740

3,890

4,120

3,900

3,900

4,220

4,530

4,630

4,810

4,850

4,660

4,360

4,210

4,130

4,370

Feb.

4,610

4,910

4,520

4,590

4,630

4,640

4,700

4,800

4,950

4,630

4,220

4,120

4,070

4,OOO

4,010

3,920

3,580

3,350

3,330

3,530

3,520

3,530

3,430

3,600

3,550

3,500

3,290

3,020

-

-

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

2,740

2,640

2,590

2,560

2,200

973

456

374

553

564

663

663

692

816

1,160

1,350

992

825

830

835

1,030

1,560

850

1,480

1,740

731

420

727

587

501

835

Apr.

2,090

2,100

2,260

2,420

4,470

4,450

3,530

2,710

2,280

1,210

3,170

4,430

3,650

3,250

2,500

1,670

937

850

1,570

1,103

865

550

141

71

71

71

70

67

66

65

-

Secondfoot-day s

68,206

99,700

112,930

1,252,981

126,430

112,550

34,937

52,684

63,695

247,151

1,334

7,130

9,966

936,713

May

69

70

70

71

93

158

108

107

76

62

528

3,520

7,670

8,600

8,770

7,790

3,590

3,380

3,380

4,520

6,160

2,850

300

64

38

38

235

585

383

205

205

Maximum

3,240

4,230

4,830

19,600

4,850

4,950

2,740

4,470

8,770

21,203

449

550

835

21,200

June

303

54

89

1,600

9,500

12,100

12,500

15,300

7,600

5,950

14,800

20,000

21,203

20,600

19,100

14,800

8,180

7,700

7,280

8,460

8,860

9,030

7,970

6,360

5,430

808

602

162

127

626

-

Minimum

99

1,590

2,220

10

3,350

3,020

374

65

38

54

11

10

228

10

July

449

76

76

75

74

57

27

22

22

178

21

16

16

16

15

16

14

12

12

12

13

12

12

12

12

12

11

11

11

11

11

Aug.

10

23

19

18

17

14

14

97

162

209

297

281

273

273

273

252

252

248

250

250

252

252

329

550

550

333

447

429

252

252

252

Mean

2,203

3,323

3,643

3,433

4,078

4,020

1,127

1,758

2,055

8,238

43.0

230

332

2,568

Sept.

410

316

250

250 -

250

255

242

476

490

228

242

248

248

252

252

252

248

330

718

835

487

305

250

248

245

245

248

248

248

650

-

Runoff in 

acre-feet

135,300

197,800

224,030

2,485,030

250,803

223,200

69,300

104,500

126,300

490,200

2,650

14,140

19,770

1,858,030
28 SNAKE RIVER MAIN STEM

Snake River near Kimberly, Idaho

Location.- Water-stage recorder lat. 42°36', long. 114°22', in NW£ sec. 4, T. 10 S., R. 

18 K. , 1,200 feet downstream from Tviin Falls power plant, 2^ miles upstream from Shoshone Falls, and 4 miles north of Kimberly.

Records available.- July 1923 to September 1947.

Extremes.- Maximum discharge during year, 21,400 second-feet June 13 (gage height. 19.50 

feet); minimum, 18 second-feet (regulated) July 20, 30 (gage height, 1.36 feet); minimum daily, 247 second-feet July 13.

1923-47: Maximum discharge, 27,200 second-feet July 4, 1927 (gage height, 14.76 

feet, site and datum then in use), from rating curve extended above 20.00C second-feet; 

minimum daily recorded, 139 second^feet July 4, 1941.

Remarks.- Records excellent except those above 10,000 second-feet, which are good, and 

those for periods of no gage-height record, which are fair. Flow regulated by Twin 

Palls power plant and several reservoirs above station. Practically entire flow is 

diverted at Milner during irrigation season; no diversion between Milner end Kimberly.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

3.5 238 6.0 910

4.0 332 7.0 1,320

4.5 445 3.0 1,800

5.0 580 9.0 2,480

5.5 735 10.0 3,400

12.0 5,750

14.0 8,750

16.0 12,600

18.0 17,300

19.5 21,400

Discharge, in second-feet, water year October 1946 to September 1947

.Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27 

28 

29 

30 

31

Oct.

526

aeoo

a750

a950

al.ZOO

al,200

al,200

1,220

1,210

1,980

3,050

3,300

3,300

3,200

3,160

3,080

3,190

3,310

3,250

3,210

3,230

3,410

2,990

2,950

3,500

3,420 

3,590 

3,520 

3,520 

3,320 

2,350

Nov.

1,930

2,360

2,750

2,880

2,670

2,340

2,680

2,650

3,530

4,280

4,060

4,070

4,080

4,110

4,230

4,230

4,200

3,500

3,520

3,760

4,570

4,440

4,230

4,220

4,240

4,060 

4,170 

4,010 

4,120 

4,220

Dec.

4,270

4,280

4,140

3,890

3,930

3,980

4,070

4,030

4,110

4,000

4,000

3,890

2,720

2,870

3,910

3,550

4,200

4,050

2,730

3,300

4,920

5,130

4,060

4,560

4,640

4,500 

4,380 

3,970 

3,930 

3,830 

3,710

Jan.

3,500

3,790

3,930

3,980

4,230

4,310

4,620

4,980

4,680

4,220

4,230

4,190

4,000

3,890

3,890

3,830

4,070

4,110

4,400

4,160

4,220

4,420

4,900

4,960

5,090

5,160 

5,130 

4,690 

4,620 

4,500 

4,740

Feb.

4,860

5,300

4,980

4,860

4,960

4,930

4,980

5,080

5,270

4,930

4,560

4,400

4,420

4,340

a4,300

a4 , 300

a4,000

a3,600

h3,580

a3,800

a3,800

a3,800

a3,800

a3,800

a3,800

a3,800 

a3,800 

3,480

Month

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

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

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

Calendar year 1946 ......................

January ...... ......:......................

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

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

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

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

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

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

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

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

Water year 1946 47 .... .................

Mar.

a3,100

a3,OOO

a2,850

a2,800

2,640

1,810

1,130

954

688

836

958

,020

,.040

,130

,330

,740

,590

,280

,240

,230

,270

,050

,590

,620

,100

1,700 

990 

827 

1,060 

970 

847

Apr.

1

2

2

2

4

5

4,

3,

3

2,

1,

4,

4,

3,

3,

2,

1,

1,

1,

1,

1,

1,

Secondfoot-days

78

llo)llO

123,550

1,374.374

135,440

121,530

47,390

65,073

75,737

14)l48

20 , 988

24,570

1,069,950

850

420

380

500

050

140

68O

540

280

910

790

980

060

730

050

140

640

160

600

710

330

210

892

567

408

384 

426 

400 

428 

418

May

400

410

420

395

430

496

460

418

412

432

413

1,860

7,540

9,110

9,350

8,900

4,320

3,800

3,730

4,140

6,810

4,330

1,660

750

454

416 

452 

921 

1,050 

822 

636

Maximum

3,590

.4,570

5,130

17,900

5,160

5,300

3,100

5,140 

9,350

21,200

1,060

1,050

1,410

21,200

June

570

784

574

676

7,690

12,200

12,200

15,300

8,550

6,030

13,800

19,700

21,200

20,800

18,900

16,000

8,800

8,020

7,300

8,310

8,840

9,180

8,290

6,760

6,060

2,900 

942 

1,050 

684 

618

Minimum

526

1,930

2,720

241

3,500

'3,480 

838

384

395

570

247

434

710

247

July

1,060

' 903

488

439

486

416

382

422

412

440

466

504

247

462

404

349

396

526

484

340

350

402

405

362

420

456 

411 

400

424 

460 

432

Aug.

442

436

434

472

472

479

481

509

532

510

603

111

746

713

742

724

728

702

696

702

694

700

698

710

1,050

1,040 

903 

868 

982 

740 

703

Mean

2, 538 

3,670

3,985

3,765

4,369

4,340

1 529

2, 169

2, 443

8, 424

456 

677

819

2,931

Sept.

716

848

849

734

720

740

750

712

938

1,010

792

732

748

710

746

757

755

760

859

1,410

1 230

, 'nio

's.74

766

720

749 

735 

717 

742 

741

Runoff in 

acre-feet

156,100

218,400 

245,100

2,726,000

268 , 600

241,100

129)lOO

150,200

501,300

23,060

41,630 

48,730

2,122,000

a No gage-height record; discharge computed on basis of 

Twin Palls.

h Computed from staff-gage reading.

records for stations at Mf.lner and near
SNAKE RIVER MAIN STEM 29

Snake River near Twin Falls, Idaho

Location.- Water-stage recorder, lat. 42°36', long. 114°29' , in NW^NW^ sec. 33, T. 9 S., 

F. 17 E., at Perrine Bridge, 200 feet upstream from outlet of Blue Lakes, 4 miles 

north of city of Twin Falls, and 4 miles downstream from Shoshone Falls.

Records available.- September 1911 to June 1917, May 1919 to December 1947 (discontinued).

Extremes.- Maximum discharge during period October 1946 to December 1947, 21,500 secondfeet June 13 (gage height, 12.30 feet): minimum, 328 second-feet (regulated) Apr. 27 

(gage height, 1.94 feet); minimum daily, 449 second-feet Apr. 27.

1911-17, 1919-47: Maximum discharge observed, 32,200 second-feet June 10, 1914 

(gage height, 13.3 feet); minimum, 2cO second-feet (estimated) Apr. 16, 1936; minimum 

daily, 311 second-feet Apr. 17, 1936.

Remarks.- Records good. Flow regulated by Twin Falls and Shoshone Falls power plants and 

several reservoirs above station. No diversion except by small ranch ditches between 

this station and station at Milner, where practically entire flow is dive-ted during 

irrigation"season.

Discharge, cond-feet, 1946-47

Day

1

2

3

4

5

6

7

8

9

10

1112-

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

841

880

1,020

1,210

1,490

1,500

1,520

1,500

1,490

2,110

3,500

3,800

3,770

3,670

3,620

3,550

3,600

3,770

3,680

3,630

3,620

3,860

3,410

3,330

3,910

3,870

3,970

3,960

3,940

3,750

2,810

Nov.

2,220

2,670

3,050

3,300

3,110

2,670

3,010

2,980

3,800

4,640

4,480

4,420

4,440

4.480

4,640

4,660

4,640

4,010

3,840

4,160

5,080

4,890

4,660

4,640

4,680

4,460

4,590

4,390

4,500

4,590

"

Dec.

4,680

4,690

4,550

4,280

4,320

4,390

4,480

4,420

4,510

4,410

4,300

4,250

3,190

3,110

4,210

3,540

4,460

4,420

3,110

3,480

5,130

5,460

4,390

4,800

4,960

4,840

4,780

4,300

4,230

4,230

4,020

Jan.

3,770

4,040

4,230

4,250

4,390

4,460

4,750

5,280

5,060

4,600

4,500

4,460

4,260

4,180

4,130

4,130

a4,200

a4 , 400

a4,600

a4,400

a4,400

4,570

5,100

5,210

5,320

5,440

5,380

4,930

4,910

4,750

4,930

Feb.

5,060

5,530

5,300

5,060

5,190

5,170

5,210

5,320

5,490

5,230

4,820

4,660

4,650

4,590

4,570

4,570

4,250

3,940

3,890

3,970

4,080

4,060

4,040

4,060

4,140

4,010

3,970

3,680

-

-

-

Mar.

3,270

3,250

3,110

3,090

3,010

2,170

1,390

1,100

913

905

1,020

1,100

1,120

1,190

1,340

1,840

1,810

1,490

1,340

1,340

1,360

2,000

1,990

1,640

2,290

1,980

1,250

972

1,060

1,110

990

Apr.

1,670

2,640

2,640

2,810

4,110

5,380

4,910

3,860

3,480

3,320

1,610

5,150

4,300

3,920

3,330

2,430

1,940

1,350

1,550

1,980

1,450

1,350

1,100

872

608

569

449

504

544

544

May

705

521

486

486

504

526

588

569

551

532

521

1,260

7,420

9,430

9,690

10,300

4,820

3,920

3,920

4,200

6,890

4,820

2,030

1,080

662

582

521

802

1,260

1,070

930

June

825

896

905

817

7,160

13,000

13,000

16,000

10,800

6,320

14,000

1S,SOO

21,500

21,200

19,400

17,100

9,570

8,440

7,750

8,780

9,290

9,740

9,020

7,310

6,420

3,330

1,290

1,130

1,050

698

July

1,010

1,170

848

588

455

575

601

509

575

582

575

621

575

498

601

569

504

563

582

515

544

515

544

526

532

575

608

614

588

575

601

Aug.

569

575

582

608

635

614

594

614

635

628

691

817

913

833

888

880

864

817

825

833

856

848

848

848

1,050

1,180

1,080

981

1,120

955

913

Sept.

896

972

1,020

938

922

913

930

896

1,020

1,170

1,020

913

930

938

930

981

964

964

1,020

1,430

1,530

1,230

1,060

972

913

905

913

905

905

981

a Ho gage-height record; discharge computed on basis of records for stations 

Kimberly.

at Milner and near

Day

1

2

3

4

5

6

7

8

Oct.

1,470

2,550

2,520

2,490

2,220

2,170

2,140

1,970

Nov.

2,200

1,950

2,060

2,560

3,090

2,970

3,520

3,250

Dec.

,420

,680

 ,570

,330

,S60

.110

,300

,460

Day

9

10

11

12

15

14

15

16

Oct.

2,000

2,430

2,410

2,450

2,760

2,730

2,620

2,540

Nov.

2,980

2,920

2,730

2,760

2,810

2,600

2,520

2,100

Dec.

,480

,460

 ,410

. ,410

 ,420

 ,410

_

-

Day

17

18

19

20

21

?.?

23

24

Oct.

2,460

2,140

2,020

2,520

2,380

2,270

1,570

1,850

Nov.

2,280

2, £40

2,680

2,870

2 , 930

2,820

2,360

Z , 680

Dec.

_

-

-

_

-

_

-

-

Day

25

26

27

28

29

30

31

Oct.

2,080

2,020

1,590

1,640

2,310

2,340

2,240

Nov.

3,550

4,780

4,860

4,820

4,660

4,250

-

Dec.

.

-

-

_

-

_

_

Monthly discharge, in second-feet, 1947-4

Month

October 1S46 .................. ............

Decembe r .............. ....................

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

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

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

Water year 1946-47 ....... . ............

October 1947. .....

November. ......

December 1-14. ...

Secondroot-days

90,581

121,700

134,340

30,081

1,163,205

61,420

Maximum

3,970

5,080

5,460

5 440

1,530

21,500

4.680

Minimum

841

2,220

3,110

896

449

3,960

Mean

2,922

4,057

4,334

1,003

5,187

4,337

Runoff in 

acre feet

175,700

266,500

55,660

2,307,000

121,800
30 SNAKE RIVER MAIN STEM

Snake River near Buhl, Idaho

Location.- Water-stage recorder, lat. 42°40' , long. 114°43 I , in NW£ sec. 9, T. 9 S., R. 15 

E., a miles downstream from Niagara Springs, 3 3/4 miles upstream from outlet of Clear 

Lakes, and 6 miles northeast of Buhl. Dqtum of gage is 2,952.9 feet above mean sea 

level, by stadia levels.

Records available.- December 1946 to September 1947.

Extremes.- Maximum discharge during period, 23,100 second-feet June 13 (gage height, 10.34 

reet); minimum observed, 1,900 second-fe<=t (regulated) May 5 (gage height, 0.38 foot).

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

b'low regulated by Twin Palls and Shoshone Palls power plants and several reservoirs 

above station. No diversion except by small ranch ditches between this station and 

station at Milner, where practically entire flow is diverted during irrigation season.

Rating table, December 1946 to September 1947 

gage height, in feet, and discharge, in see -feet)

0.3 1.840

1.0 2,400

2.0 3,450

3.0 

4.0 

5.0

4,750

6,450

8,550

6.0 10,900

8.O 16,10O

10.4 23,200

Discharge, In second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

5,540 

4,530 

a5,000 

a5, 500

5,640 

5,720 

5,640 

4,460 

4,600

a6,500 

a6,750 

a6,000 

a6,300 

a6,500

a6,400 

a6,100 

as, 700 

a5, 400 

a5,300 

a5,250

Jan.

a5, 2oo 

as, 300 

a5,400 

a5,650 

a5, 800

5,940 

5,940 

6,640 

6,450 

5.8&0

5,720 

a5, 700 

5,640 

5,550 

5,550

5,520 

5,760 

5,740 

6,120 

5,940

5,900 

6,010 

6,490 

6,640 

6,740

6,910 

6,830 

6,410 

6,360 

6,130 

6,260

Feb.

6,390 

6,890

6,810 

6,410 

6,580

6,550 

6,560 

6,500 

6,870 

6,680

6,220 

6,010 

6,080 

5,950 

5,900

5,920 

5,670 

5,340 

5,230 

5,280

5,440 

5,390 

5,390 

5,340 

5,470

5,340 

5,340 

5,040

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Th

nber 12-31. ....... . ....

lendar year 

ary

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

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

St. ................... ... ............

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

3 period ........

a No gage-t 

below Lower 

f Computed 

Note.- Comj

to Apr. 4, AI

Mar.

4,680 

4,600 

4,490 

4,420 

4,380

3,790 

3 , 000 

a2,750 

a2 , 500 

a2,400

a2,450 

2,500 

2,560 

2,580 

2,690

3,240 

2,630 

2,880 

2,750 

2,730

2,730 

2,860 

2,730 

2,980 

3,200

3,240 

2,670 

2,490 

2,320 

2 , 580 

2,450

Apr.

3 

3 

3 

4 

4

6 

6 

5 

4 

f4

f3 

5 

5 

5 

4

3 

3 

2 

2 

3

3

2

2 

2

2 

2

1 

1 

1

Secondfoot-clays

112,930

.

186,090 

166,700 

94,270 

111,360 

125,960 

313,530 

68,230 

79,110 

85,750

_

,110 

,910 

,84O 

,200 

,940

,680 

,260 

,310 

,910 

,560

,370 

,600 

720 

,230 

,720

,800 

280 

770 

770 

450

,110 

880 

580 

420 

050

050 

010 

940 

930 

960

May

2,100 

2,040 

2,020 

1,950 

1,900

1,910 

2,050 

2,020 

2,040 

2,140

2,090 

2,170 

f7,530 

10,600 

10,900

10,800 

6,990 

5,290 

5,340 

5,440

7,910 

6,750 

3,910 

2,730 

2,370

2,140 

2,130 

2,140 

2,880 

2,860 

2,810

Maximum

6,750

'

6,910 

6,890 

4,580 

6,680 

10,900 

22,900 

2,770 

2,920 

3,460

.

June

2,620 

2,670 

2,880 

2,730 

7,440

14,300 

14,500 

17,200 

13 , 000 

7,760

14,900 

21,100 

22,900 

22,600 

21,000

19,000 

12,200 

10,100 

9,190 

10,000

10,600 

11,200 

10,600 

8,870 

7,980

f5,230 

3,150 

2,750 

2,710 

2,350

Minimum

4,460

.

5,200 

5,040 

2,320 

1,930 

1,900 

2,350 

1,990 

2,340 

2,680

.

July

2,630 

2,770 

2,400 

2,240 

1,990

2,130 

2,240 

2,020 

2,100 

2,130

2,150 

2,220 

2,200 

2,010 

2,240

2,150 

2,040 

2,120 

2,130 

2,090

2,120 

2,170 

2,130 

2,150 

2,090

2,180 

2,240 

2,270 

2,260 

2,290 

2,330

Aug.

2,380 

2,370 

2,340 

2,400 

2,490

2,440 

2,460 

2,350 

2,400 

2,420

2,440 

2,440 

2,640 

f2,500 

2,560

2,540 

2,540 

2,510 

2,510 

2,530

2,540 

2,550 

2,560 

2,590 

2,740

2,920 

2,870 

2,760 

2,860 

2,770 

2,690

Mean

5,646

6,003 

5,951 

3,041 

3,712 

4,063 

10,450 

2,201 

2,552 

2,853

.

Sept.

2,680 

2,710 

2,790 

2,760 

2,730

2,740 

2,770 

2,780 

2,840 

3,020

3,000 

2,820 

2,800 

2,810 

2,810

2,850 

2,850 

2,860 

2,860 

3,110

3,460 

3,190 

3,000 

2,890 

2,790

2,750 

2,770 

2,770 

2,720 

2,820

Runoff in 

acre-feet

224,000

369,100 

330,600 

187,000 

220,900 

249,800 

621,900 

135,300 

156.900 

170,100

2,666,000

leight record; discharge computed on basis of records for stations near Twin Falls and 

Salmon Falls, near Hagerman. 

from partly estimated gage-height record, 

mted from staff -gage reading Dec. 12, 13, 16-20, Jan. 6-11, 13-16, Mar. 5-7, Mar. 12 

3r. 16 to May 12, May 24 to June 4, June 27 to Aug. 13.
SNAKE RIVER RAIN STEM 31

Snake River below Lower Salmon Falls, near Hagerman, Idaho

Location - Water-stage recorder, lat. 42°51'36", long. 114°54 I 42", in lot 3, sec. 2 , T. 

V s . , R . 13 E., half a mile downstream from lower Salmon Falls power plant, 1 mile 

upstream from Big Wood (Malad) River, and 3j miles north of Hagerman.

Records available.- November 1937 to September 1947.

Extremes.- Maximum discharge during year, 27,900 second-feet June 14 (gage height, 15.37 

I'eet); minimum recorded, 4,880 second-feet (regulated) Apr. 24 (gage height, 6.08 

feet); minimum daily, 5,400 second-feet May 4, 5.

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

good. Flow regulated by Lower Salmon Falls power plant and many reservoirs above 

station. Practically entire flow at Milner diverted during irrigation season; only 

minor diversions below Milner.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Oct.

7,690

8,090

7,960

8,050

8,380

8,510

8,510

8,530

8,380

8,360

9,650

10,300

10,200

10,200

10,100

10,000

9,950

10,100

10,100

10,100

9,980

10,100

10,OOO

9,500

9,850

10,200

10,200

10,300

10,100

9,850

9,390

Nov.

8,320

8,340

9,190

9,210

C,450

9,120

8,970

9,080

9,190

10,400

10,700

10,500

10,5OO

10,600

10,600

10,600

10,700

1O , 50O

9,850

10,100

11,000

11,100

10,800

10,700

10,700

10,800

10,600

10,500

10,400

10,500

-

Dec.

10,500

10,800

10,600

10,300

10,100

10,300

10,500

1O.30O

10,400

10,300

10,300

10,200

9,850

8,930

9,610

10,100

9,810

10.2OO

9,720

8,970

10,200

11,800

10,800

10,300

10,900

10,900

10,800

10,300

9,830

9,700

9,740

Jan.

9,520

9,540

9,880

9,900

10,100

10,300

10,400

10,900

10,900

10,300

10,200

10,200

10,100

9,850

9,810

9,650

9,850

10,000

10,200

10,300

10,200

10,300

10,700

11,000

11,100

11,200

11,400

1C, SCO

10,700

10,600

10,500

Feb.

10,700

11,100

11,400

10,900

11,000

11,000

11,000

11,000

11,200

11,100

10,800

10,500

10,600

10,500

10,400

10,400

10,400

10,300

9,590

9,670

10,000

9,830

9,780

9,720

9,880

9,760

9,670

9,450

_

-

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

Septembe r .............. ........... .......

Water year 1946-47 . . ...................

Mar.

9,190

8,950

8,860

8 .740

8,700

8,300

7,570

7 . 010

6,910

6,680

6,700

6,950

6,830

6,850

6,890

7,230

7,490

7,370

7,O10

6,910

6,890

6,970

7,790

7,190

7,110

7,290

6,740

6,340

6 , 500

6,510

6,680

Apr.

6,530

7,730

8 , 000

8,210

8,530

10,700

10,600

9,830

9,100

8,800

8,090

8,970

10,000

9,390

8,760

8,210

7,410

7,010

6,640

7,110

7,230

7.O70

6,610

6,280

6,070

5,960

5,750

5,750

5,550

5,550

-

Secondfoot-days

292,630

303,020

317,060

3,664,730

320,500

291,650

226,950

231,440

247,420

451,790

204,260

220,050

233,550

3,340,320

May

5,600

5,650

- , 500

^,400

5,400

5,600

5,900

5,9OO

5,850

6,000

6,250

6,600

8 , 7 50

14,200

15,200

15,100

13,200

9,250

9,150

9,000

10,200

11,600

8,700

7,200

6,500

5,830

6,230

6,640

6,820

7,050

7,150

Maximum

10,300

11,100

11,800

24,400

11,400

11,400

9,190

10,700

15,200

27,400

7,130

7,570

8,470

27,4OO

June

7,190

7,210

7,350

7,430

9,500

18,200

19,OOO

21,000

20,100

13,100

17,200

24,600

27,400

27,400

26,000

24,700

18,900

14,500

13,900

14,100

15,000

15,50C

1 5 , 500

13,900

12,400

11,200

7,840

7,290

7,350

7 ,0ou

-

Minimum

7,690

8,320

8,930

6,230

9,520

9,450

6,300

5,550

5,400

7,030

6,070

6,780

7,290

5,400

July

6,870

7,130

6,930

6,800

6,510

6,440

6,530

6,450

6,440

6,550

6,380

6,590

6,640

6,490

6,510

6,610

6,490

6,450

6,510

6,570

6,440

6.O7O

6,420

6,550

6,510

6,610

6,640

6,780

6,720

6,780

6,850

Aug.

6,820

6,830

6,930

6,930

6,990

7,030

6,910

6,890

6,930

6,780

6,870

6,990

6,970

7,170

7,070

7,170

7,010

7,070

7,050

7,070

7,050

7,170

7,130

7,270

7,210

7,510

7,510

7,530

7,370

7,570

7,250

Mean

9,440

10,100

10,230

IC.O'lO

10,340

10,420

7,521

7,715

7,981

15,060

6,589

7,098

7,785

9,152

Sept.

7,310

7,410

7,330

,670

,290

,530

,470

,630

,550

,790

,840

,770

,730

,770

7,730

7,820

7,920

8,000

7,920

8,05O

8,470

8,360

8,150

8,050

7,840

,920

,670

,880

,860

,820

-

Runoff in 

acre-feet

580,400

601,000

628,900

7,269,000

635,700

578,500

450,100

459,100

490,800

896,100

405,100

436,500

463,200

6,625,000

Note.- No gage-height re 

ear Buhl and at King Hill.

ord Apr. 27 to May 25; discharge uted on basis of records for station
SNAKE RIVER MAIN STEM

Snake River at King Hill, Idaho

Location - Water-stage recorder, lat. 43°00', long. 115°11', in SW^ sec. 7, T. 5 S., R. 11 

E., auO feet east of railroad station at King Hill and 20 miles downstream from Big 

Wood River. Datum of gage is 2,492.3 feet above mean sea level, by stadia levels.

Records available.- May 1909 to September 1947. 

Extremes.

daily. ,

1909-47 

16.3 

sec

.- Maximum discharge during year 29,600 second-feet June 14 (gage height, 12. 

T minimum, 6,230 second-feet (regulated) May 4 (gage height, 5.46 feet); mini 

, 6,710 v second-feet May 5.

69 

imum

.LJUJ tc 'Maximum discharge observed, 47,200 second-feet June 22, 1918 (gage height, 

3 feet), from rating curve extended above 30,000 second-feet; minimum otserved, 4,760 

:ond-feet July 7-9, Aug. 15, 16, 1910 (gage height, 4.5 feet).

Remarks.- Records excellent. Flow regulated by many reservoirs abo/e station. Practically 

entire flow at Milner diverted during irrigation season; flow at King Hill is then derived largely from springs and seepage entering below Milner.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?.

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9,130

9,690

9,610

9,690

9,910

10,100

10,100

10,200

10,200

10,200

11,100

12 , 100

12 , 000

12,100

11,900

11,800

11,700

11,900

11,900

11,800

11,800

11,800

11,900

11,300

11,500

12,100

11,900

12,100

11,900

11,700

11,300

Nov.

10,300

10,100

10,800

11,200

11,300

11,100

10,800

10,900

10,800

11,900

12,500

12,300

12,300

12,400

12,400

12 , 400

12,500

12,400

11,700

11,800

12 , 500

12,900

12,900

12,700

12,600

12,600

12,400

12,400

12,200

12,300

-

Dec.

12,400

12 , 500

12,400

12,200

11,800

12,100

12 , 300

12 , 200

12,200

12,200

12,200

12,000

11,800

10,800

11,200

11,900

11,600

12,000

11,700

10,800

11,700

13,400

12,900

12,200

12,700

12,800

12,700

12 , 300

11,600

11,600

11,500

Jan.

11,400

11,200

11,500

11,600

11,600

11,900

12,000

12,400

12 , 600

12,200

12,000

12,000

11,800

11,600

11,500

11,300

11,400

11,600

11,800

12,000

11,800

11,900

12,200

12,500

12 , 800

13,000

13,100

12,700

12,500

12,300

12,200

Feb.

12 , 300

12 , 600

13,100

12,600

12 , 600

12,700

12,800

12,700

12 , 800

12,900

12,500

12,400

13,000

13,000

12,700

12,500

12 , 500

12,100

11,600

11,300

11,600

11,600

11,600

11,400

11,600

y.,500

11,400

11,200

-

_

-

Month

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

Calendar year 1946 ......................

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

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

Water year 1946-47 ... ...... ...........

Mar.

10,900

10,70C

10,700

10,600

10,500

10,200

9,45C

8,79C

8.69C

8,560

9,100

8,900

8,610

8,740

8,560

9,100

9,370

9,640

9,500

9,310

9,290

8,970

9,990

9,580

9,130

9,230

8,660

8,130

8,000

8,260

8,510

Apr.

8,300

9,370

9,880

10,200

10,700

12 , 800

12,900

12,300

11,300

10,900

10,400

10,100

12,100

11,300

10,700

10,200

9,530

9,260

8,920

9,230

9,580

9,160

8,530

8,230

7,530

7,230

7,060

7,060

6,780

6,850

-

Secondfoot-days

373,700

4,284,250

487 990

274,970

3,916,770

May

6,830

7,010

6,850

6,730

6,710

7,010

7,320

7,350

7,230

7,370

7,590

7,800

9,660

15,700

16,600

16,500

14,700

10,800

10,500

10,400

11 , 600

13,100

10,000

8,560

7,900

7,490

7,420

7,830

8,080

8,460

8,560

Maximum

13,400

27,800

9,940

29,400

June

8,560

8,690

8,840

9,080

9,690

18,700

20,100

21,500

22,600

15,200

16,500

24,900

28,900

29,400

27,900

26,300

21,100

16,000

15,200

14 , 800

15,700

16,400

16,600

15,000

13,500

12,700

9,210

8,660

8,330

7,930

Minimum

10,800

7,300

8,340

6,710

July

7,760

8,030

,960

,730

,350

,250

,270

,390

,300

,390

,540

,370

,510

,370

,420

,490

,420

,320

,510

,590

,630

,300

,390

,610

,710

,780

,800

8,200

8,160

8,060

7,980

Aug.

7,980

7,980

8,030

8,200

8,180

8,300

8,180

8,060

8,230

8,000

8,030

8,100

8,200

8,280

8,430

8,580

8,580

8,460

8,480

8,530

8,480

8,610

8,610

8,560

8,640

8,740

8,840

8,690

8,530

8,740

8,610

Mean

12,050

11,740

9,166

10,730

Sept.

8,380

8,580

8,58O

8,790

8,530

8,790

8,790

8,920

8,920

9,130

9,210

9,160

9,080

9,100

9,160

9,230

9,340

9,480

9,420

9,450

9,940

9,940

9,640

9,530

9,420

9,310

9,210

9,230

9,480

9,230

Runoff in 

acre-feet

741,200

8,498,000

545,400

7,769,000
SNAKE RIVER MAIN STEM 33 

Snake River near Murphy, Idaho

Location.- Water-stage recorder, lat. 43°18', long. 116°26', in NEy sec. 35, T. IS., R. 

1 W., 4i!r miles downstream from Swan Falls power plant and 1\ miles northeast of Murphy. Datum of gage is 2,271.3 feet above mean sea level, by stadia levels.

Drainage area.- 41,900 square miles.

Records available.- August to October 1912, August 1913 to September 1947.

Extremes.- Maximum discharge during jear, 32,400 second-feet June 15 (gage height, 11.12

 feet); minimum, 5,780 second-feet (regulated) July 24 (gage height, 3.27 feet); minimum daily, 7,370 second-feet May 1, 2.

1912-47: Maximum discharge 47,300 second-feet June 22, 1918 (gage height, 13.95 

feet, site and datum then in use); minimum observed, 3,950 second-feet (discharge 

measurement) July 20, 1934, when stage was below intake pipe.

Remarks.- Records excellent. Flow regulated by many reservoirs above station. Diurnal

 fluctuation caused by Swan Falls power plant. Several diversions by pumping between 

this station and station at King Hill.

Discharge, in second feet, water year October 1946 to September 194"?

Day

1

4

6

7

11

16

19

21

23

26

29 

30

31

Oct.

9,310

9,550

9,850

9,880

9,880

10,200

10,400

10,400

10, 300

10,400

10,500

11,200

12,300

12,200

12,200

12,200

12,000

12,000

12,100

12,100

12,100

12,100

12,100

12,200

11,600

11,800

12,400

12,200

12,400 

12,300

12,000

Nov.

11,800

10 , 800

10,500

11,100

11,500

11,800

11,400

11,100

11,400

11,200

12 , 300

12,800

12 , 500

12,700

12 , 700

12,700

12,700

12,700

12 , 800

12,300

12,200

12,800

13,200

13,200

13,000

13,000

13,100

12,700

12,800 

12,700

-

Dec.

12,700

12,600

12,900

12,700

12,500

12,300

12,500

12,700

12,500

12,600

12,500

12,500

12,300

12,200

11,200

11,500

12,200

11,800

12,100

12,000

11,100

12 , 000

13,700

13,100

12,400

13,100

13,000

12,900

12,600 

11,700

11,800

Jan.

11,600

11,600

11,400

11,800

11,800

11,800

12,200

12,200

12,700

12,800

12 , 500

12 , 200

12,200

12 , 100

11,800

11,700

11,700

11,700

11,700

11,700

11,800

11,900

11,900

12,400

12,800

13,000

13,300

13.400

13,000 

12,600

12,600

Feb.

12 , 400

12,600

12,800

13,400

13,000

13,000

13,100

13,000

13,100

13,100

13,200

12,900

12,700

13,600

13,600

13,400

13,100

13,000

12,600

12,100

11,800

11,900

12,000

11,800

11,800

12,000

11,800

11,700

-

-

Month

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

Calendar year 1946 ......................

Hay. .......................................

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

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

Hater year 1946-47 ..............

Mar.

11,400

11,200

10,900

10,900

10,700

10,500

10,000

9,490

8,800

8,740

8,770

9,070

8,950

9,040

8,830

8,920

9,190

9,490

9,790

9,730

9,640

9,490

9,190

10,100

9,730

9,310

9,310

9,010

8,300 

8,240

8,470

Apr.

8,860

8,950

9,640

10,300

10,500

11,000

12,900

13,100

12,500

11,400

11,200

10,700

10,400

12,200

11,500

11,000

10,400

9,820

9,550

9,370

9,400

9,820

9,400

8,950

8,590

8,070

7,760

7,510

7,620 

7,390

Secondfoot-days

352,170

383,700

4,469,690

275,470

4,030,080

Hay

7,370

7,370

7,590

7,700

7,760

7,760

8,010

8,180

8,330

8,270

8,390

8,620

8,710

10,500

15,900

16,600

16,600

14,800

12,700

11,000

10,900

12,200

13,500

10,700

9,100

8,300

8,180

8,180

8,920

Maximum

13,700

30 , 300

10 , 000

31,100

June

8,830

9,010

9,190

9,130

9,340

10,200

19,400

21,400

23,200

23,400

15,900

18,600

27,100

30,900

31,100

29,700

27,800

21,900

16,400

15,600

15,500

16,800

16,600

15,200

8,800

Minimum

11,100

7,450

8,420

7,370

July

8,210

8,240

7,840

7,560

7,590

7,7OO

7,590

7,760

7,810

7,810

7,670

8,180

8,240

Aug.

8,160

8,180

8,210

7,950

8,360

8,560

8,560

8,680

8,800

Hean

12,380

12,250

9 523

9 954

9,182

11,040

Sept.

8,800

8,800

9,130

9,460

9,610

9 430

9,430

Runoff in 

acre-feet

761,100

8,865.000

546,400

7,993,000
34 SNAKE RIVER MAIN STEM

Snake River at Weiser, Idaho

Location.- Water-stage recorder, lat. 44 0 15', long. 116°59', in sec. 31, T. 11 N., R. 5 

w., a third of a mile upstream from highway bridge at Weiser. Datum of gage is 2,087.09 

feet above mean sea level, datum of 1929.

Records available.- October 1910 to September 1947. Fragmentary gage-height record obtained by U. S. Weather Bureau since 1895.

Extremes.- Maximum discharge during year, 44,600 second-feet June 11 (gage height, 9.46 

reet); minimum, 8,700 second-feet July 17 (gage height, 2.68 feet).

1910-47: Maximum discharge observed, 83,100 second-feet May 23, 1921 (gage height, 

13.60 feet); minimum observed, 5,100 second-feet Aug. 5, 1924 (gage height, 1.35 feet).

Flood of Mar. 3, 1910, reached a stage of 15.7 feet on old U. S. Weather Bureau 

gage (discharge, about 100,000 second-feet). Flood of June 1894 was considerably 

higher.

Remarks.- Records excellent. Flow regulated by many reservoirs above station. Some 

diurnal fluctuation caused by Swan Falls power plant. Some diversions belov Murphy 

for irrigation.

Cooperation.- Gage-height record collected in cooperation withU. £. Weather Bureau.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12,600

12,900 1','C' 1

14,400

14,100

14,200

14,600

15,200

15,100

14,900

14,900

15,100

15,500

16,800

16,800

16,900

16,800

16,300

16,000

16,100

16,100

16,200

16,700

17,000

17,200

16,100

16,000

16,600

15,600

16,500

Nov.

15,900

15,400

14,400

13,700

14,200

15,000

15,200

15,000

14,500

14,300

14,700

15,600

16,200

15,800

15,900

16,000

16,230

16,200

16,700

22,000

20,900

18,700

18,600

21,000

20,100

13,800

22,500

23,700

23,200

21,800

13,300 . -

Dec.

20,400

19,300

18,800

18,500

18,400

19,200

19,300

18,900

19,100

18,600

18,300

19,800

23,700

26,700

29,000

26,100

22,400

20,400

19,000

18,900

18,600

17,400

17,700

19,000

13,900

17,700

18,500

18,800

17,900

17,000

15,300

Jan.

15,500

15,200

15,200

14,600

14,900

15,200

15,400

16,000

16,000

16,400

17,000

16,700

16,000

15,600

15,200

15,100

14,800

15,100

15,100

15,200

15,400

15,803

15,700

15,800

16,100

16,700

17,000

17,200

17,000

16,700

15,900

Feb.

16,000

15,900

16,200

16,600

17,000

16,700

16,600

16,700

16,600

16,600

16,700

18,200

27,300

26,000

23,700

23 , 000

22,200

21,900

20,600

19,500

18,600

17,203

17,000

17,200

15,300

16,400

16,300

16,200

_

-

Month

October, ...................................

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

Decembe r ...................................

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946 47 .... ............ ....

Mar.

15,900

16,100

15,700

15,300

15,400

15,000

14,800

14,900

14,000

15,500

16,400

15,400

15,100

14,600

14,600

15,200

15,900

16,800

17,500

18,200

18,800

19,200

20,100

20,200

20,100

20,400

23,200

20,400

20,000

19,600

20,400

Apr.

19,600

20,900

21,100

21,200

21,800

21,400

20,900

21,800

22,000

21,100

19,800

19,300

18,600

18,000

20,300

20,400

20,100

19,9OO

19,000

18 , 400

18,500

18,000

17,900

17,200

16,000

15,400

15,000

15,400

16,500

17,900

Secondfoot-days

484,000

612i200

7,834,030

489

519*700

573*. 400

865,000

904,800

317,150

313,230

360,300

6,495,180

May

18,100

18,300

20,1OO

23,500

25,600

26.1OO

27,000

29,000

32,200

36,6OO

35,200

33,700

33,800

32,700

31,400

34,400

32,800

31,900

30,400

26,400

25,900

26,700

27,700

29,300

27,300

25,600

25,100

25,500

24,500

23,800

24,400

Maximum

17,200

23,700

29,000

57,000

17,200

27,300

20,400

22,000

36,600

44,100

11 ' 000

13,500

44,100

June

26,200

27,400

27,500

27,400

26,400

25,900

25,500

33,500

38 , 900

43,400

43,300

36,100

35,800

41,800

44,100

43,200

41,000

39,300

33,700

27,800

26,600

25,400

25,400

24,600

23,600

21,600

19,800

19,100

15,900

14,600

Minimum

12 , 600

13,700

15,800

9,280

14,600

15,900

14,000

15.UOO

18,100

14,600

9,210

9,460

10,600

9,210

July

13,500

13,000

12,300

11,600

12,000

11,200

11,000

10,700

10,100

9,980

9,720

9,680

9,750

9,640

9,530

9,600

9,210

'9,420

9,460

9,350

9,390

9,530

9,640

9,530

9,280

9,570

9,860

9,720

9,790

9,900

10,200

A'lg.

10,000

9,860

9,860

9,640

9,530

9,680

9,680

9,720

9,720

9,570

9,460

9,750

9,530

9,830

10,100

10,000

10,000

10,100

10,100

10,2OO

10,400

10,100

10,300

10,500

10,800

10,700

10,800

10,900

11,000

10,700

10,700

Mean

15,610

17,460

19,750

21,460

15.79C

18 , 56C

17.16C

19, 11C

27.90C

30,16C

10.23C

10.10C

1S.01C

17.80C

Sept.

10,700

10,800

10,600

10,700

10,800

10,800

11,000

11,100

11,700

11,900

11,700

12,200

12,200

11,900

11,900

12,000

12,000

12,000

12,800

13,200

13,400

13,100

13,300

13,500

12,800

12,800

12,500

12,300

12,400

12,200

Runoff in 

acre-feet

960,000

1,039,000

1,214,000

15,540,000

100

1,031*000

1,055,000

1,137,000

1,716,000

1,795,000

629, 100

714*.600

12,880,000
SNAKE RIVER MAIN STEM 35

Snake River at Oxbow, Oreg.

Location.- Water-stage recorder, lat. 44°57', long. 116°51', in NWtr sec. 16, T. 7 S., 

K. 4b E., at Oxbow, five-eighths of a mile upstream from intake of diversion tunnel 

for Oxbow power plant.

Records available.- May 1923 to September 1947.

Extremes.- Maximum discharge during year, 44,600 second-feet June 11 (gage height, 15.61 

 i'eet); minimum, 9,170 second-feet July 18 (gage height, 7.86 feet).

1923-47: Maximum discharge, 74,600 second-feet Apr. 21, 1943 (gage hsight, 20.71 

feet); minimum, 4,890 second-feet Aug. 6, 1924 (gage height, 6.30 feet).

Remarks.- Records excellent. Flow regulated by many reservoirs above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?,

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12,600

12,900

13,100

14,100

14,300

14,200

14,500

14,900

15,300

15,200

14,900

15,000

15,100

15 , 900

16,400

16,500

16,700

16,400

16,000

15,900

16,100

16,000

16,500

16,500

17,200

17,000

15,900

16,400

16,700

16,500

16,600

Nov.

16,300

15,800

15,300

14,400

14,000

14,900

15,100

15,300

15,000

14,800

15,000

15,000

16,000

16,300

16,100

16,300

16,600

16,700

17,000

18,700

22,600

19,800

18,700

19,800

20,800

20,000

21,000

24,300

24,200

23,000

-

Dec.

21,500

20,400

19,300

18,900

18 , 900

19,100

20,000

19,400

19,400

19,300

18,700

19,400

22,300

26,100

29,100

29,000

25,000

22,100

20,400

19,200

19,400

18,800

17,800

18,600

19,600

18,800

18,400

19,100

18,700

17,900

16,800

Jan.

16,000

15,600

15,500

15,000

14,700

15,400

15,400

15,900

16,200

16,200

16,900

17,000

16,500

15,900

15,300

15,300

15,400

14,600

14,800

15,300

15,700

15,900

16,000

16,000

16,100

16,600

16,900

17,400

17,300

17,000

16,500

Feb.

16,300

16,100

16,100

16,600

16,900

17,300

16,800

16,900

16,900

16,700

16,700

17 , 900

24,600

31,000

25,800

24,700

23,700

23,400

22,200

21,000

20,000

18,900

18,100

18,100

17,900

17,500

17,200

17,000

-

-

-

Month

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

Calendar year 1946 ......................

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

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

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

Water year 1946-47 ......................

Mar.

16,700

16,700

16,600

16,300

16,100

16,000

15,800

15,600

15,400

15,000

17,400

16,500

15,700

15,500

15,200

15,600

16,400.

17,2*00

18,500

19,000

19,800

20,200

20 , 900

21,700

21,000

21,500

21,200

21,200

21,200

20,600

20,900

Apr.

21,000

20 , 900

21,900

21,700

22,200

22,400

21,800

21,800

23,000

22,100

21,100

20 , 200

19,400

18,700

19,500

21,200

21,000

20,900

20,400

19,600

19,500

19,400

18 , 900

18 , 600

17,400

16,500

16,100

15,900

16,600

17,800

-

Second 

foot-days

481,300

528,800

631,400

8,102,440

494,300-

542,300

557,400

597,400

893,000

919,900

329,030

315,010

361,500

6,651,340

May

18,900

19,100

20,400

22,800

26,100

27,600

28,400

29,600

31,800

35,700

37,400

35,300

34,200

34,200

32,700

33 , 500

34,000

32,800

32,000

29,600

26,800

27,100

27,800

29,700

29,500

27,200

26,700

26,300

26,200-

24,900

24,700

Maximum

17,200

24,300

29,100

59,800

17,400

31,000

21,700

23,000

37,400

44,100

14,500

11,000

13,500

44,100

June

26,000

27,800

28,200

28,400

27,400

26,800

26,400

30,000

37,700

41,600

44,100

39,900

34,800

39,200

43,000

43,300~

41 , 700

39,800

36,700

39,200

27,400

26,000

25,800

25,200

24,400

23,200

21 , 200

19,600

18,600

15,500

-

Minimum

12,690

14,000

16,800

9,540

14,600

16,100

15,000

15,900

18,900

15,500

9,600

9,600

10,600

9,600

July

14,500,

13,800

12,900

12,400

12,100

12,100

11,500

11,100

10,700

10,300

10,200

10,000

10,000

10,000

9,830

9,690

9,860

9,600

9,690

9,740

9,630

9,800

9,860

9,950

9,740

9,690

9,950.

10,100

10,000

10,000

10,300

Aug.

10,300

10,200

10,200

9,980

9,770

9,740

9,830

9,800

9,740

9,690

9,720

9,600

9,720

9,600

9,770

10,000

9,950

10,100

10,000

10,100

10,300

10,400

10,400

10,500

10,800

10,700

11,000

10, 900

10,600

Mean

15,530

17,630

 20,370

22,200

15,950

19,370

17,9<30

19,910

28,810

30,660

10,610

10,160

12,050

18,220

Sept.

10,600

10,800

10,800

10,600

10,800

.0,800

11,100

11,100

11,600

12,000

12,100

12,100

12,300

12,100

12,000

12,100

12,100

12,000

12,400

13,000

13,300

13,200

13,200

13,200

12,900

12,300

Runoff in 

acre-feet

954,600

1,049,000

1,252,000

16,070,000

980,400

1,076,000

1,106,000

1,185,000

1,771,000

1,825,000

652,600

624,800

717, OOQ

B, 190, 000
36 SNAKE RIVER MAIN STEM

Snake River near Clarkston, Wash.

Location.- Water-stage recorder, lat. 46°25'30", long. 117°10'30", in lot 1, sec. 16, T.

 11 W. , R. 45 E., 2 miles upstream from Alpowa Creek, 7 miles downstream from Clarkston, 

and 134 miles upstream from mouth. Datum of gage is 670 feet above mean sea level 

(Corps of Engineers bench mark).

Drainage area.- 103,200 square miles.

Kecoras available.- October 1935 to September 1947 in reports of Geological Survey.

 October 191t to September 1922 and August 1928 to September 1935 at site 66 miles 

downstream, published as Snake River at Riparia, in reports of Geological Sirvey. 

October 1909 to September 1933 (at site at Riparia) in State Water-Supply Billetin 5.

Extremes.- Maximum discharge during year, 239,000 second-feet (regulated) May 10 (gage

 height, 33.^2 feet); minimum, 16,400 second-feet (regulated) Aug. 21, Sept. 2, 5 (gage

height, 3.94 feet)- minimum daily, 19,000 second-feet (regulated) Aug. 21, Sept. 2-7. 

1909-47: Maximum discharge observed, 970,000 second-feet May 20, 1921 (gage height,

19.0 feet, site and datum then in use); minimum observed, 10,600 second-feet Aug. 14,

18, 20, g4-r?8, 30, 31, Sept. 1, 2, 5, 1931, but may have been less during period of ice

effect in January 1937.

Mqximum stage known, 24.7 feet, Riparia site and datum, June 5, 1894. determined

from floodmarks by U. S. Weather Bureau (discharge, 409,000 second-feet). 

Remarks.- Records excellent. Small diversions by pumping between this station and station

EfETJxbow, Oreg. Large diurnal fluctuation caused by power plant on Clearwater River

above Lewiston, Idaho.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

10.5

11.0

12.0

13.0

14.0

18,600

20,500

24,800

29,600

35,000

15.0

16.0

18.0

20.0

22.0

41,000

47,700

62,700

79,700

98,700

24.0

26.0

28.0

30.0

32.6

120,000

142,000

166,000

193,000

230,000

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

11

16

18 

19

21

25

26

Oct.

21,800

22,200

24,400

28,000

28,000

27,600

25,700

26,200

26,200

26,200

25,700

25,700

25,200

25,700

26,600

26,600

26,200 

26.600 

26,200

25,700

26,200

33 , 300

36,800

35,000

57 , 900

51,900

42,400

39 , 200

36,800

35,000

Nov.

34,400

33,300

31,600

30,000

28,600

28 , 600

30,000

30,000

30,000

29,000

29,000

28,600

28,000

28,600

28,600

28,600

28 , 600 

28 , 600 

34,400

43', 000

43,000

43,000

39,800

45,000

46,300

45,600

46,300

51,200

57,100

54,700

-

Dec.

50 , 500

46,300

43,600

41,000

40 , 400

41,000

41,000

41,000

40 , 400

39,800

43,000

90,700

105,000

125,000

152,000

144,000

107,000 

82,400 

70,700

62,700

57,100

54,000

50 , 500

47,000

45,600

45,000

44,300

43 , 000

41,000

38 , 600

36,200

Jan.

34,400

33,800

30,600

28 , 600

28,600

29,000

32 , 200

32.800

32,200

32,200

32,800

32 ,800

32,200

31,100

29,000

27 , 600

27,600 

28,000 

27,600

28,600

29,000

29,600

31,100

39,600

47,700

51 , 900

49,100

42,400

38,600

36,800

35,000

Feb.

33,300

34,400

39,200

37,400

36,800

36,800

36,200

34,400

33,800

32,800

32,800

36,200

52,600

68 , 300

69,100

61,900

58,700 

61,100

59,500

54,700

51,200

49,100

47,700

48 , 400

48 , 400

47,000

43 , 600

41,700

-

_

-

Month

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

Calendar year 1946 . . .............. ....

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

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

Water year 1946-47 . . ...................

Mar.

40 , 400

39,200

39 , 200

39,200

38,600

36,800

35,600

35,000

34,400

35 , 600

39,800

44 , 300

42 , 400

41,000

41,700

43,000

47,000 

52,600 

57,900

61,900

63 , 500

66,700

72,500

69,900

66,700

62,700

60,300

57,100

56,300

57,900

65,100

Apr.

69,100

67 , 500

66,700

65,900

64,300

62,700

60,300

57 , 900

57,100

59 , 500

58,700

54,700

53,300

54,700

61,900

72,500

79,700 

88,700 

94,700

95,700

92,700

87,800

84,200

79,700

78,800

77,900

82,400

92,700

106,000

121,000

Secondfoot-days

1,909,800

20,375,100

20,371,100

May

118,000

121,000

147,000

176,000

193,000

198,000

200,000

219,000

230,000

228,000

195,000

170,000

154,000

148,000

142,000

137,000

138,000 

137,000 

134,000

136,000

134,000

135,000

133,000

130,000

134,000

137,000

141,000

144,000

135,000

125,000

120,000

Maximum

152,000

166,000

230,000

June

126,000

125,000

122,000

120,000

115,000

111,000

113,000

107,000

123,000

141,000

134,000

126,000

115,000

111,000

112,000

112,000

117,000 

122,000 

114,000

106,000

93,700

86,000

81,5Cu

77,900

75,200

73,400

73,400

77,900

69,900

63,500

Minimum

36,200

17,800

19,000

July

57,100

53,300

51,900

50,500

49,100

47,700

45,600

43 , 600

43,000

41,000

39,800

39,200

37,400

35,600

33,800

31,600 

30,600 

29,600

28,600

28,000

27,000

26,600

26,200

25,700

25,200

24,800

24,800

24,400

23,500

23,500

Aig.

23,000

23,000

22,600

22,200

22,200

21,400

21,400

21,000

20,500

20,500

19,800

20,200

19,800

19,800 

19,400

19,400

19,000

19,800

19,800

22,200

21,800

21,000

21,500

20,200

19,800

19,800

19,400

Mean

61,610

55,820

55,810

Sept.

19,800

19,000

19,000

19,000

19,000

19,000

19,800

21,400

22,200

20,500

21,800 

23,900

23,500

23,900

23,500

23,000

22,600

23,000

23,000

22,200

22,200

22,200

21,800

Runoff in 

acre-feet

3,788,000

43,410,000

2

30, 410, 000
TRIBUTARIES ABOVE SALT RIVER 37

Pacific Creek near Moran, Wyo.

Location - Water-stage recorder, lat. 43° 51', long. 110° 31', in sec. 23 T. 45 N., R. 114 

W. , SIT feet downstream from bridge on U. S. Highway 287, half a mile above mouth, and 

3 miles southeast of Moran.

Drainage area . - 160 square miles.

Records available.- July to November 1906 (gage heights only) , July 1917 to September 

1918 (no winter record), September 1944 to September 1947.

Extremes . - Maximum discharge during year, 1,600 second-feet May 28; maximum gage height, 

3T21TTeet May 10; minimum discharge recorded, 32 second-feet Dec. 17 (gage height, 

0.53 foot), but may have been less during period of ice effect.

1917-18, 1944-47: Maximum discharge observed, 3,030 second-feet June 15, 1918 

(gage height, 3.98 feet, former site and datum); minimum recorded, th^t of Dec. 17, 

1946.

Remarks . - Records good except those for Dec. 17 to Mar. 28, which are poor. 

or regulation.

No diversion

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

65

75

75

70

71

69

69

72

72

66

59

66

63

68

75

78

74

69

69

66

70

71

82

75

82

89

84

86

84

76

75

Nov.

68

68

62

60

60

62

64

64

64

64

62

60

60

60

61

SI

60

60

61

63

62

58

64

64

64

64

63

63

64

63

-

Dec.

62

62

62

62

64

66

66

66

64

61

63

63

61

60

61

59

40

35

*40

55

Jan.

50

Month

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

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

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

Calendar year 1946 .........

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

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

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

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

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

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

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

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

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

Water year 1946-47 ..........

Feb.

(*)

50

"

Secondfoot-days

2,265

1 , 873

1,777

95,451

1,550

1,400

1,678

3,031

34,725

31,822

11,522

3,694

2,335

97,672

Mar.

50

*h55

a56

a 57

h58

a 59

a 60

a62

a60

a 58

a55

a60

63

63

62

Maximum

89

66

1,480

63

3O5

1,440

1,400

690

173

112

1,440

Apr.

62

60

59

59

57

56

55

53

55

54

55

53

58

72

88

86

89

94

95

108

112

114

106

114

121

133

169

223

266

305

-

May

348

455

642

820

960

1,020

1,070

1,160

1,330

1,360

1,260

1,200

1,120

1,110

1,140

1,180

1,270

1,270

1,110

1,090

1,220

1,230

1,210

1,200

1,260

1,340

1,440

1,420

1,180

1,100

1,210

Minimum

59

58

35

35

53

348

658

152

80

68

35

June

1,330

1,320

1,390

1,260

1,120

1,100

1,110

1,210

1,400

1,260

1,110

970

920

950

980

1,060

1,140

1,070

1,100

1,330

1,120

940

830

800

800

840

1,070

890

744

658

-

Mean

73.1

62.4

57.3

262

50

50 0

54 . 1

101

1,120

1,061

372

119

77.8

268

July

618

650

682

690

650

618

594

562

602

485

436

403

378

342

325

354

300

280

271

248

240

235

215

203

189

176

157

157

155

155

152

Per 

square 

mile

0.457

.?58

1.64

312

.'312

.338

.631

7.00

6.63

2.32

.744

.486

1.68

Aug.

149

]

]

]

46

41

46

157

135

]

]

]

55

49

33

152

173

J

]

J

33

24

17

108

]

]

a

08

05

01

99

97

112 i

i

i

21

08

01

99

94

92

89

86

84

80

Sept.

77

76

80

78

75

72

72

70

71

76

77

74

70

69

a 68

a68

a 68

a95

alOO

a80

77

74

71

71

72

72

82

78

112

110

-

Runoff

Imhes

0.53

.44

.41

22.19

. 36

.33

.39

.70

8.07

7.40

2.68

.86

.54

22.71

Acre-feet

4,490

3,720

3,520

189,300

3,070

2,780

3,330

6,010

68,880

63,120

22 850

l', 330

4,630

193,700

* Winter discharge measurement made on this day.

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

h Computed from staff-gage reading.

Note.- Stage-discharge relation affected by ice Nov. 4-6, 11-13, 16, 17, 24, 25, Dec. 1-4, Dec. 17 

17 to Mar. 17 (no gage-height record during most of period; discharge computed on basis of weather 

records and records for stations on nearby streams.
38 TRIBUTARIES ABOVE SALT RIVER 

Buffalo Pork near Moran, Wyo.

Location - Water-stage recorder, lat. 43°50', long. 110°31', in sec. 26, T. 45 N., R. 114 

W. , 3D feet below bridge on county road, half a mile above mouth, 2f miles downstream 

from Lava Creek, and 4 miles southeast of Moran.

Drainage area.- 378 square miles.

Records available.- July to November 1906 (gage heights only), July 1917 to September 1918 

(no winter records), September 1944 to September 1947.

Extremes.- Maximum discharge during year, 3.440 second-feet June 20 (gage height, 5.14

i'eet) ; minimum recorded, 86 second-feet Dec. 17, (gage height, 0.95 foot), but may have 

been less during period of ice effect.

1917-18, 1944-47: Maximum discharge observed, 5,840 second-feet June 13, 1918 (gage 

height, 6.78 feet, datum then in use),from dischgrge measurement; minimum recorded, 

that of Dec. 17, 1946.

Remarks.- Records good except those for periods of ice effect, which are fair. No diversion or regulation.

Ratine tables, water year 1946-47, except periods of Ice effect 

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

1.0 

1.2 

1.4 

1.7 

2.0

95

139

192

2.4 

2.9 

3.5 

4.0 

5.0

680

1,050

1,600

2,120

3,270

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

220

251

244

226

240

223

220

230

226

214

201

217

211

220

234

237

237

230

223

208

220

223

230

220

220

240

223

230

230

204

208

Nov.

189

184

154

170

204

208

223

211

201

186

201

178

167

204

192

190

195

198

189

181

162

164

180

180

175

178

178

184

186

181

~

Dec.

180

180

175

170

170

180

184

181

175

170

170

172

159

a!65

172

149

97

110

\ (*)

160

Jan.

> 140

Month

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

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

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

Calendar year 1946 .........

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

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

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

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

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

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

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

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

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

Water year 1946-47 ...... ...

Feb.

> *135

-

-

Secondfoot-days

6,960

5^039

203,356

4,340

3,780

4,460

6,744

50,974

60,190

57,430

20, 558

9,253

235,421

Mar.

. 135

(* )

160

Maximum

251

223

184

2,800

440

2,360

3,150

2 , 600

1,190 

415

3,150

Apr.

> 160

154

147

140

150

181

230

230

234

237

237

269

273

269

230

237

234

266

317

399

430

440

-

May

452

526

876

1,310

1,590

,740

,960

,040

,360

,360

,080

,880

,660

,530

,450

,640

,810

,800

,600

,440

,540

,670

,550

,520

,660

,920

,160

,100

,670

,480

,600

Minimum

201

154

97

97

140

452

1 ,420

1,000

347 

269

97

June

1,780

1,800

1,930

1,830

1,650

1,580

1,580

1,830

2,260

1,990

1,740

1,500

1,420

1,580

1,700

1,960

2,330

2,320

2,600

3,150

2,830

2,150

1,860

1,740

1,860

2,220

2,720

f2,280

a2,100

al,900

-

Mean

225

186

163

557

140

135

144

225

1,644

2,006

1 , 853

666 

308

645

July

al,900

al,950

a2,200

a2 , 500

a2 , 600

2,420

2,480

2,570

2,600

E.530

2,280

2,160

2,100

1,940

1,830

1,790

1,800

1,650

1,680

1,790

1,620

1,770

al,700

a 1,500

al,300

al,300

f 1,180

1,130

1,110

1,050

1,000

Per

square 

mile

0 . 595

. 492

.431

1.47

.370

.357 

. 381

. 595

4^5

5.31

4.90

1.76 

.815

1.71

Aug.

1,030

1,I,'

C

L90

10

94

1,010

869

I

-

;

306

362

334

390

398

22

567

522

>89

589

>63

=26

=02

484

490

4

4

)50

>02

57

52

430

L

^

^

15

594

589

575

347

Sept

343

338

347

347

325

313

309

300

296

309

325

300

292

281

277

273

277

389

415

317

292

285

277

273

273

269

292

285

313

321

Runoff

Indus

0 . 68

.55

.50

20.00

.43

.37 

.44

.66

5.02

5.65

2.03 

.91

23.16

Ac re- feet

13,800

11,090

9 , 990

403,400

8,610

7,500

8, 850

13,380

101,100

119,400

113,900

40,970 

18,350

466,900

ords for stations

* Winter discharge measurement made on this day.

a No gage-height record: discharge computed on basis of weather records a 

on other Snake River tributaries.

f Computed from partly-estimated gage-height record.

Note.- Stage-discharge relation affected by Ice Nov. 16, 23-25, Dec. 1-6, 10, 11, Dec. 18 to 

Apr. 9 (no gage-height record Jan. 5, 6, Jan. 9 to Feb. 13; discharge computed on basis of weather 

records and records for stations on Oros Ventre River at Kelly and Hoback River near Jackson).
TRIBUTARIES ABOVE SALT RIVER

Oros Ventre River at Kelly, Wyo.

Location.- Wire-weight gage, lat. 43°3?' , long. 110°38', in NW£ sec. 11, T. 42 N. , R. 115 

W. , at bridge on private road, 0.3 mile south of Kelly post office and 3 miles downstream from Turpin Creek.

Drainage area.- 622 square miles.

Records available.- October 1944 to September 1947. 

mile upstream.

June to September 1918 at site 1

Extremes.- Maximum discharge observed during year, 3,100 second-feet May 10 (gage height, 

6.24 feet); minimum observed, 122 second-feet Jan. 3 (gage height, 1.51 feet).

1918, 1944-47: Maximum discharge observed, 6,220 second-feet June 16, 1918 (gage 

height, 9.95 feet, site and datum then in use); minimum observed, 102 second-feet 

Dec. 16, 1944 (gage height, 1.54 feet).

Flood of May 18, 1927, when landslide about 2 miles upstream washed out, releasing 

about 60,000 acre-feet of impounded water, was considerably higher; discharge not 

determined.

Remarks.- Records good. Diversions above and below station for irrigation.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

1.5 120 3.0 590 

1.7 154 3.5 884 

2.0 216 4.0 1,240 

2.3 297 5.0 £,020 

2.6 405 6.3 3,150

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

203 

207 

214 

221

276

228 

228 

221 

223 

221

216 

209 

209 

207 

212

223 

226 

226 

223 

221

212 

212 

216 

212 

214

216 

221 

223 

221 

221 

221

Nov.

207 

196 

188 

181 

179

181 

186 

192 

192 

188

186 

169 

169 

169 

175

177 

175 

173 

177 

181

184 

179 

179 

181 

181

181 

181 

181 

184 

186

Dec.

184

177 

177 

173 

173

181 

186 

186 

184 

177

175 

a!77 

a!79 

181 

177

175 

145 

169 

128 

131

141 

154 

162 

158 

164

165 

171 

173 

150 

143 

134

Jan.

i3e

130 

122 

133

136

145 

147 

140 

141 

165

150 

147 

150 

150 

150

141 

136 

136 

147 

147

145 

143

147 

150 

147

158 

143 

150 

143 

143 

143

Feb.

143 

149 

143 

143 

140

140 

140 

133 

130 

143

145 

145 

147 

136 

147

147 

147 

150 

149 

136

143 

140 

145 

147 

136

140 

130 

136

«! *!, SecondMonth foot-days

Octc 

Hove 

Dece

Ca

Janv 

Febi 

Marc 

Apri 

May 

June 

Julj 

Augv 

Sept

Wa

lendar year 1946 

ary

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

6,803 

5,458 

5,150

57,674

4,461 

3,970 

4,661 

7,031 

54,513 

16,440 

27,487 

12,562 

7,178

iter year 1946-47 ....... .. 185,714

Mar

130

143

140 

136

141 

140 

141 

143

143

143 

140 

133 

141 

143

143 

143

150 

150 

154

158 

169 

177 

177 

177

169 

160 

150 

154 

164 

169

Maximum

276 

207 

186

2,780

165 

150 

177 

460 

3,100 

1,960 

1,340 

580 

279

3,100

Apr.

171

175 

179 

175

169 

167 

164 

160 

158

162 

152 

156 

167 

192

221 

243

256 

27O 

282

307 

320 

307 

282 

273

270 

285 

334

401

460

May

483

1 

1

2 

2 

3

Minimum

203 

169 

128

128

122 

130 

130 

152 

483 

1,150 

426 

267 

205

122

770 

,220 

,610

,010 

,180 

,550 

,740 

,100

,740 

,520 

,180 

,940 

,650

,520 

,760 

,760 

,680 

,520

,480 

,490 

,540 

,530 

,520

,560 

,970 

,170 

,840 

,520 

,420

June

,560

,640 

,800 

,680

,520 

,480 

,440

,720 

,880

,720 

,520 

,320 

,210 

,320

,520 

,520 

,880 

,960 

,810

,600 

,840 

,580 

,210 

,150

,180 

,430 

,760 

,440 

,180

Mean

219

182 

166

459

144 

142 

150 

234 

1,758 

1,548 

887 

405 

239

509

July

964 

897 

910 

,120

,330

,250 

,180 

,260 

,320 

,340

,290 

,190 

,080 

990 

846

884 

897 

833 

783 

758

746 

699 

688 

654 

622

590 

545 

483 

465 

447 

426

Per

square 

mile

.352 

.293

.267

.738

.232 

.228 

.241

.376 

2.83 

2.49 

1.43 

.651 

.384

.818

Aug.

422 

439 

465 

478

550

555 

527 

521 

521 

540

580 

540 

516 

456 

413

382 

366 

352 

330 

310

304 

304 

317 

330 

317

304 

304 

291 

285 

276 

267

Sept

262 

251 

256 

248 

245

240 

238 

228 

226 

223

226 

230 

230 

226 

221

205 

214 

243 

267 

273

279 

267 

245 

243 

238

235 

235 

226 

228 

230

Runoff

Inches Acre-feet

.41 13,490 

.33 10,830 

.31 10,210

10.03 332,600

.27 8,850 

.24 7,870 

.28 9,240 

.42 13,950 

3.26 108,100 

2.78 92,110 

1.64 54,520 

.75 24,920 

.43 14,240

11.12 368,300

gage-height record; discharge computed 

near Jackson and other nearby streams.

basis of weather re cords for Hoback
40 TRIBUTARIES ABOVE SALT RIVER

Hoback River near Jackson, Wyo.

.- , . ,

HTi aT Camp Creek Camp, a quarter of a mile downstream from Willow Creek, 4 miles 

upstream from mouth, and 13j miles so

Location.- Staff gage, lat . 43°1?'55", long. 110°40'10", in sec. 32, T. 39 N., R. 115

a mile downstream f 

outheast of Jackson.

Drainage area.- 564 square miles; 572 square miles at site near Cheney.

Records available.- November 1944 to September 1947. July 1917 to September 1918 at 

site a quarter of a mile above mouth, published as Hoback River near Cheney.

Extremes.- Maximum discharge observed during year, 3,050 second-feet May 8, 11 (gage 

height, 5.42 feet); minimum observed, 90 second-feet Dec. 18 (gage 'height, 1.70 

feet).

1917-18, 1944-47: Maximum discharge observed 6,160 se.cond-feet June 16, 1918 

(gage height, 13.46 feet, former site and datum); minimum observed, that of Dec. 18, 

1946.

Remarks . - Records fair. No regulation. Small diversions above station for irrigation. 

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

3u4 

314 

304 

294 

294

285 

265 

294 

285 

275

E94 

275 

257 

2F5 

265

275 

265 

275 

257 

248

248 

265 

257 

257 

2R5

257 

248 

275 

285 

275 

257

Nov.

48 

76

57 

75 

57

31

57 

65 

57 

40

31 

40 

57

5E 

19

05 

184 

191 

198

227

219 

212 

219 

198 

212

227 

244 

219 

227 

231

Dec.

223 

Elfi 

223 

231

240 

231 

223

223 

216

209 

231 

240 

240 

216

187 

154 

90 

 187 

187

179 

181

223 

209 

223

2Z3 

Z16 

Z01 

181 

165 

154

Jan

167 

165 

b!55 

b!65 

170

187 

181 

176 

170 

181

187

170 

176 

176 

170

165

b!60 

b!60 

176 

187

191 

181 

187 

194 

191

194

181 

170 

170 

176 

181

Feb.

187 

194

181

201 

198

194 

201 

176 

165 

187

181 

176 

198 

194

181

187 

194

205 

201 

194

187 

*181

138 

194 

209

187 

176 

194

Mnn+h SecondMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1946 .....

8,479 

6,875 

6,345

257,141

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

5,460 

5,321 

6,927 

18,128 

71,340 

55,250 

32 ,203 

16,575 

8,593

ter year 1946-47 .......... 241,496

Mar.

154 

194

205 

201 

194

187 

187 

198

194 

201

198 

201 

209 

201 

205

216 

231 

231 

248 

244

257 

265 

285 

257 

252

240 

231 

257 

248

275 

261

Maximum

314 

275 

240

2,960

194

209 

285 

1,500 

3,010 

2,430 

1 , 580 

725 

357

3,010

Apr.

261 

275 

280 

261 

261

236 

244

236 

244 

236

231 

248 

363 

445 

569

596 

631 

681 

770 

834

874 

834 

748 

762 

762

906 

1,060 

1,310 

1,500 

1,470

May

1 , 500 

1,900 

2,400 

2,650 

2,800

2,810 

2,830 

2,960 

2,960 

2,870

3,010 

2,740

2,420 

2,240 

2,180

2,150 

2,250 

2,180 

2,130 

1 ,960

2 ,040 

2 ,050 

1,940 

1,920 

1,980

2,180 

2,330 

2,370 

1,970 

1,880 

1,740

Minimum

248 

17S 

90

90

155 

165 

154 

231

1,500 

1,240 

610 

357 

25E

90

June

1,830 

1,930 

2,020 

1 , 900 

1,840

1,960 

1,860 

2,030 

2,430 

2,090

1,890 

1,700 

1,600 

1,690 

1,760

1,940

2,150 

2,100 

2,310 

2,390

2,020 

1,730 

1 , 560 

1,500

1 , 520

1,510 

1,830 

1,570 

1,350 

1 ,240

Mean

274 

229 

205

704

176 

190 

223 

604 

2,301 

1,842 

1,039 

535 

286

662

July

1,040 

1,070 

1,200 

1,430 

1,440

1,210 

1,240 

1,550 

1,580 

1,450

1,520

1,060 

1,180 

1,160 

1,080

1,140 

1,040 

975 

966 

890

818 

882 

810 

810 

710

732 

667 

660 

645 

638 

610

Per 

square 

mile

0.486 

.406 

.363

1.25

.312 

.337 

.395 

1.07 

4.08 

3.27 

1.84 

.949 

.507

1.17

* Winter discharge measurement made on this day.

Aig.

617 

652 

638

725 

667

576 

667 

652 

718 

710

667 

590 

548 

515 

515

515 

483

458 

451 

470

515 

515 

496 

426 

445

439 

97 

391

380 

380

357

Sept.

341 

346 

336 

309 

314

299 

275 

265

27O 

270

280 

280 

275 

270 

265

275 

284 

357 

314 

285

270 

270 

270 

280 

270

265 

265 

252 

261

280

Runoff

Inches

0.56 

.45 

.4?

16.97

.36 

.35 

.46

1.20 

4.70 

3.64 

2.12 

1.C9 

.57

15.92

Acre-feet

16,820 

13,640 

12,590

510,000

10,830 

10,550 

13,740 

35,960 

141,500 

109,600 

63,870 

32,880 

17,040

479,000
SALT RIVER BASIN 41

Salt River near Smoot, Wyo.

Location.- Water-stage recorder, lat. 42°36 I , long. 110°55', in sec. 7, T. 30 N., R. 118 

W., 1-f miles south of Smoot and lj miles upstream from Willow Creek.

Drainage area.- 59.4 square miles.

Records available.- June 1932 to September 1947 (no winter records 1933-35, 1936-37).

Average discharge.- 11 years (1935-36, 1937-47), 35.5 second-feet.

Extremes.- Maximum discharge during year, 308 second-feet May 3 (gage height, 3.50 feet), 

rrom rating curve extended above 210 second-feet; minimum daily, 6.0 second-feet Jan. 

CO-2_6.

1932-47: Maximum discharge, 430 second-feet May 15, 1936, from ratircc curve extended above 200 second-feet; maximum gage height, that of May 3, 1947; minimum daily 

discharge recorded, 1.8 second-feet Sept. 1, 1937.

?emar'-:g.- Records excellent between 12 and 210 second-feet, fair below and above. A few 

diversions above station for irrigation.

Rating tables, water year 1946-47, except periods of ice effect 

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

Oct. 1 to Apr. 26

1.2 6.0

1.3 9.2

1.4 14

1.5 19

1.6 

1.8 

2.0

Apr. 27 to Sept. 30

1.5 15 104

1.6 23

1.8 41

2.0 64

2.3 

2.9 

3.4

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

10

12

10

10

12

12

12

12

12

12

11

11

11

12

12

12

11

11

11

10

10

9.7

11

10

11

11

13

15

13

11

10

'Nov.

10

11

blO

blO

bll

b!2

b!3

b!3

8.9

8.9

10

11

*11

11

11

11

10

9.5

9.0

9.0

9.0

9.0

9.0

8.5

8.0

8.0

8.0

8.0

8.0

8.0

Dec.

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

7.8

7.8

7.8

7.8

7.8

7.0

6.2

7.4

9.0

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.8

7.0

6.5

Jan.

6.5

6.5

6.6

7.0

7.2

7.0

6.4

6.6

7.0

6.4

6.4

*6.4

6.4

6.5

6.4

6.6

7.0

7.0

6.2

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.2

6.2

6.6

6.8

6.2

Feb.

6.2

6.2

6.2

6.2

6.2

6.4

6.8

7.4

7.6

7.0

7.0

7.0

7.0

7.0

7.0

6.8

6.8

6.8

6.8

7.0

7.0

7.0

7.0

7.0

7.0

7.0

6.8

6.8

_

-

Month

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

Calendar year 194"= ... .................

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

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

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

Water year 1946-47 ..... ...............

Mar.

7.0

7.6

8.2

8.0

7.3

7.8

7.8

8.0

8.0

8.0

8.0

7.6

8.0

*8.4

8.2

8.6

8.6

8.6

8.6

8.8

9.0

9.0

9.5

10

9.5

9.0

9.0

9.0

9.0

9.0

9.2

Apr.

9.5

10

10

10

10

10

10

9.5

9.0

9.0

9.5

*10

12

16

22

27

29

32

38

50

60

50

43

40

43

53

70

94

118

125

Secondfoot days

293.8

227.4

13,370.7

480

16,817.3

May

147

195

243

247

243

247

259

281

272

250

259

231

205

197

197

197

200

197

195

184

184

192

181

176

176

184

181

187

163

149

150

Maximum

13

9.0

174

281

21

281

June

149

147

160

155

149

155

150

171

216

204

202

192

184

181

179

184

192

186

179

187

168

152

136

130

118

122

122

112

106

98

Minimum

9.7

8.0

6.2

_

14

6.0

July Aug .

97 28

97 28

100 28

94 29

90 28

89 26

86 27

83 27

80 28

76 29

70 28

64 26

62 24

57 24

54 23

54 23

53 22

51 21

50 22

46 21

45 25

44 26

42 23

40 23

39 22

36 21

36 21

35 21

34 21

30 21

28 20

Mean

11.3

9.79

7.34

35.6

16.0

45.1

Sept.

19

18

17

17

16

15

14

14

16

17

17

17

16

16

16

16

20

21

18

17

16

15

14

14

14

14

14

14

14

14

-

Runoff in 

acre- feet

696

583

451

26,520

397

5*^1

952

33,350

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 12 to Apr. 11 (stage-discharge relation affected by ice most 

>f period); discharge computed on basis of 3 discharge measurements and weather reco-ds.

881401 O - 50 - '
42 SALT RIVER BASIN

Salt River at Wyoming-Idaho State line

Location.- Water-stage recorder, lat. 43°10', long. 111°04', in see. 16, T. 3 S., R. 46 

ETiJust downstream from Trout Creek, half a mile upstream from mouth, and threequarters of a mile west of Wyoming-Idaho Gtate line.

Drainage area.- 89U square miles.

Records available.- Aoril 1934 to September 1947. July 1917 to September 1918 at site 

4 miles upstream; records net equivalent.

Average discharge.- 13 years, 685 second-feet.

Extremes.- Maximum discharge during year, 1,720 second-feet May 5; maximum gage height, 

4.15 feet Jan. 10 fife jam); minimum daily discharge, 375 second-feet Mar. 6.

1934-47: Maximum discharge, 3,550 second-feet May 6, 1936 (gage height, 4.64 feet) 

from rating curve extended above P.600 second-feet; minimum, 21b second-fei?t May 17, 

1934 (gage height, 1.30 feet).

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

record, and those after July 90, which are good. Diversions above station for irriga t i on.

Rating table, water year 1946-47, except periods of ice effect

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

(Shifting-control method used Jan. 12-15, Apr. 30 to Sept. 20)

1.9

2.1

375

495

615

2.6 

3.1 

3.3

1,010

1,490

1,710

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

668

682

698

690

690

705

712

720

720

705

705

720

712

705

705

698

698

712

705

690

682

675

698

712

712

705

728

765

772

750

a700

Nov.

a690

a710

a680

a660

a640

a650

a670

a68O

a620

a600

a630

a630

a630

 630

630

630

608

608

615

630

622

615

638

652

630

622

638

638

622

622

-

Dec.

615

602

589

582

589

630

660

638

622

602

602

608

638

720

720

652

570

556

556

550

544

534

539

539

528

539

544

539

500

b470

b430

Month

Jan

b410

b420

b410

b400

b400

b410

b420

b410

b410

b400

b410

410

*414

410

414

b410

b415

b425

b420

b400

392

403

396

406

418

426

406

410

410

406

406

Feb.

406

400

406

406

403

396

392

b385

b380

b390

396

389

389

389

*389

392

392

396

396

389

392

396

396

396

389

392

392

392

_

-

-

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

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

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

Calendar year 1946 ..... ...... .

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

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

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

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

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

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

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

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

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

Water year 1946-47 ............ .... ....

Mar.

392

392

392

392

378

375

382

382

386

389

389

389

392

396

400

406

422

438

477

522

563

622

682

668

596

589

570

589

es2

802

929

Apr.

856

904

929

856

750

698

675

668

660

652

622

630

668

742

856

896

896

896

912

938

1,030

1,060

1,000

947

920

938

1,020

1,110

1,210

1,250

-

Secondfoot-days

21,939

19,140

18,007

312,240

12,697

11,026

15,353

26 ,189

39 958

35*026

26 , 608

25,310

21,224

272,477

May

1,230

1,290

1,480

1,630

1,700

1,660

1,620

1,590

1,560

1,520

1,590

1,600

1,510

1,470

1,440

1,370

1,340

1,300

1,290

1,240

1,220

1,140

1,060

992

896

856

818

848

938

864

896

Maximum

772

710

720

2,800

426

406

929

1 250

l'?00

1,500

992

904

772

1,700

June

956

938

920

912

920

1,030

1,040

1,040

1,190

1,490

1,500

1,460

1,410

1,360

1,320

1,260

1,260

1,300

1,270

1,240

1,240

1,230

1,190

1,130

1,060

1,030

1,070

1,140

1,080

1,040

Minimum

668

600

430

430

392

380

375

622

818

912

765

750

645

375

July

992

956

912

904

904

888

880

880

880

880

864

848

832

825

832

832

848

856

856

864

864

856

872

864

856

832

802

788

788

788

765

Aug.

758

750

750

772

832

825

832

825

832

856

904

880

856

840

832

825

802

802

795

802

832

856

848

832

825

810

795

795

795

780

772

Mean

703

633

581

853

410

394

493

873

1,283

1,163

filfi

707

747

Sept.

772

765

765

758

750

720

720

720

720

712

712

705

705

698

698

690

698

772

765

712

698

690

682

675

668

660

652

645

645

652

Runoff in 

acre feet

43,520

37,960

35,720

619,300

25,180

21,870

30,450

51,950

79,260

69,470

52 , 780

50, 200

42,100

540,500

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of 

on nearby streams.

b Stage-discharge relation affected by ice.
SALT RIVER BASIN

Location.- Water-stage recorder, lat. 42°37', long. 110°53', in sec. 4, T. 30 N., R. 118 

W. , ijj miles downstream from Porcupine Creek and ij miles southeast of Smoot.

Drainage area.- 26.3 square miles.

Records available.- May 1933 to September 1947.

Average discharge.- 14 years, 41.9 second-feet.

Extremes.- Maximum discharge during year, £50 second-feet June 20 (gage height, 2.79 

feet); minimum, 9.0 second-feet Feb. 4 (gage height, 1.09 feet).

1933-47: Maximum discharge observed, 424 second-feet June 17, 18, 1933 (gage 

height, 2.76 feet, datum then in use), from rating curve extended above 200 secondtct; minimum daily, 8.5 second-feet Feb. 28 to Mar. 2, 1935.

Remarks - Records excellent below 150 second-feet and good above. No diversion above 

station. Flow regulated by Cottonwood Lake.

Rating table, water year 1946-47 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 4-29)

1.1

1.2 

1.5 

1.4

9.3

14

1.5 

1.7

2.0

2.8

65

110

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

26

26

25

2;

26

2-

25

-5

2^"5

C;

24

24

24

14

24

23

24

23

22

22

22

22

21

22

::

22

25

22

21

20

Nov.

19

19

19

19

19

19

19

19

19

19

19

19

19

19

18

17

17

16

15

le

16

16

17

15

16

15

16

15

16

16

'

Dec.

15

15

13

IE

15

15

If

15

15 ' 15

15

15

i:

15

IE

ID

12

17

15

14

14

14

14

14

14

14

14

14

le

14

15

Jan.

14

14

13

16

15

14

13

14

14

14

14

14

15

15

14

15

15

16

14

13

15

13

13

15

13

13

13

13

13

13

14

Feb.

13

13

13

13

13

13

13

13

14

13

13

13

13

13

13

12

12

12

12

12

12

12

12

12

12

12

12

12

-

-

-

Month

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

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

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

Calendar year 194t ......................

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

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

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

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

Mav way .... .......................... .......

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

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

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

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

Water year 1946 47 ... . ................

Mar.

3

2

2

2

2

12

12

12

12

12

12

12

11

12

12

12

13

13

13

13

14

14

15

1^

14

14

14

14

14

14

14

Apr.

15

l;

13

15

15

15

14

14

14

14

14

14

14

16

19

21

22

22

24

26

28

28

26

26

26

27

29

31

37

40

-

SecondToo t-days

729

526

454

18,107

430

352

400

636

4,481

5,718

3,570

1,B95

1,099

20,288

May

47

62

83

96

106

113

121

148

164

164

158

1=1

137

130

130

133

144

153

158

157

167

176

173

171

175

182

189

189

178

166

160

Maximum

26

19

17

238

16

14

15

40

189

239

155

B2

44

239

June

157

160

171

171

167

169

176

191

225

227

220

205

194

184

189

205

216

220

230

239

230

193

180

176

171

173

176

175

166

160

-

Minimum

2C

IE

12

12

i;

12

i:

144-

15'

T

44

3C

13

July

155

151

155

155

155

151

148

146

142

139

133

128

123

118

115

112

106

102

100

96

94

92

90

99

as

84

84

84

82

78

77

Aug.

74

74

76

82

77

74

71

70

70

70

66

64

62

60

60

58

57

56

55

58

61

58

c;

52

49

49

48

47

46

44

Mean

23.5

17.5

11.6

49.6

13.9

12.6

12.9

21.2

145

1S1

115

fl.l

36.6

f5.6

Sept.

44

43

43

42

42

40

40

39

39

39

38

37

37

36

36

35

37

38

37

35

35

34

34

32

32

31

31

31

30

31

Runoff in 

acre- feet

l,45o

1,040

900

35,920

853

698

793

1,260

8,890

11,340

7,:aj

3,760

2,180

40,240
44 SALT RIVER BASIN

Swift Creek near Afton, Wyo.

Location.- Water-stage recorder, lat. 42 <*43'30", long. 110°54'00", in SE-j sec. 29, T. 

3'J N., R. 118 W. , 1 mile upstream from mouth of canyon and \\ miles east of Afton.

Drainage area.- 27.4 square miles.

Records available.- May 1943 to September 1947.

Extremes.- Maximum discharge observed during year, 385 second-feet June 22 (gage height, 

3.15 feet); minimum daily, 30 second-feet Apr. 11,

1943-47: Maximum discharge, 491 second-feet June 21, 1943 (gage height, 3.38 feet) 

minimum, 24 second-feet Mar. 24, 1944 (gage height, 1.96 feet).

Remarks.- Records fair. Pipe line (capacity, about 5 second-feet) diverts water above 

station for town of Afton.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

66

64

62

62

60

59

57

57

57

57

5b

56

55

56

54

51

47

47

47

48

47

47

46

46

47

48

47

50

50

50

Nov.

50

50

51

48

47

50

48

47

48

48

48

46

41

42

50

48

45

46

47

45

43

42

42

42

42

41

41

41

41

-

Dec

41

42

42

42

42

42

42

42

42

42

42

42

42

42

42

43

40

43

41

42

42

42

42

42

41

41

39

36

37

37

Jan.

37

37

35

35

36

35

35

36

35

36

36

36

37

37

38

39

37

38

36

36

35

36

36

37

37

38

37

38

38

39

Feb.

39

39

40

37

35

35

36

35

36

36

35

35

36

36

36

36

37

36

36

36

37

38

39

38

37

36

36

_

_

-

Month

Decembe r ...................................

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

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

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

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

Water year 1946-47 ......................

Mar.

36

37

37

35

36

37

36

36

36

36

36

36

36

36

36

36

36

35

35

36

36

35

35

36

34

35

35

35

35

Apr.

34

34

35

35

35

33

32

31

31

31

30

31

31

33

36

37

42

42

46

48

50

48

48

48

48

54

49

68

73

-

Secondfoot days

1,645

1,367

1,278

1,135

1,025

1,108

1,245

7,426

9,559

6,601

3,070

1,810

37,269

May

79

97

119

145

191

206

218

28 O

318

301

297

288

226

198

191

206

242

242

230

259

272

263

263

272

326

347

343

301

246

230

Maximum

66

51

43

369

39

40

37

73

347

385

314

122

71

385

June

242

255

263

272

267

272

280

101

334

343

347

343

339

339

339

322

343

356

364

372

385

372

364

347

343

318

288

259

255

-

Minimum

46

41

36

36

35

35

34

30

79

242

125

73

51

30

July

251

284

314

309

305

293

309

314

301

284

259

246

234

218

214

218

184

180

170

163

157

154

145

139

133

133

127

125

125

125

Aug.

119

119

122

119

116

113

116

116

113

111

113

111

108

102

102

100

95

89

87

89

89

87

82

84

82

82

79

79

73

73

Mean

53.1

45.6

41.2

93.4

36.6

36.6

35.7

41.5

240

319

213

99.0

60.3

102

Sept.

71

71

70

68

70

68

66

66

66

66

62

60

60

60

60

59

57

59

57

55

55

55

55

54

52

54

52

52

51

-

Runoff in 

acre-feet

3,260

2.710

2,530

67,580

2,25<"l

2,030

2,200

2,470

14,730

18,960

13,090

6,090

3,590

73,910

Note.- Discharge for June 18 to July 26 computed from chain-gage readings.

881401
SALT RIVER BASIN 45

Crow Creek near Pairview, Wyo.

Location - Water-stage recorder, lat. 42°40'10", "long. lll°01i20 M , in sec. 17, T 31 N., 

H. 119 W., l£ miles upstream from Spring Creek, lj miles downstream from Idaho-Wyoming 

State line, and 2-| miles southwest of Fairview.

Drainage area.- 114 square miles.

Records available.- M^rch 1946 to September 1947.

Extremes.- Maximum discharge during year, .158 second-feet May 11; maximum gage height 

observed, 3.52 feet Feb. 8 (ice jam); minimum discharge not determined, probably 

(recurred during period of ice effect; minimum gage height, 1.31 feet Nov. 1Z.

1946-47: Maximum discharge observed, 236 second-feet Apr. 19, 1946; maximum gage 

height observed, that of Feb. 8, 1947: minimum dischqrge not determined, probably 

occurred during period of ice effect; minimum gage height, that of Nov. 12, 1946.

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

wnich are fair. Small diversions above station for irrigation.

Discharge, in second feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

47

53

47

46

48

51

51

49

48

49

a49

a49

a49

49

49

49

49

49

49

48

46

46

52

49

49

49

51

55

55

50

48

Nov.

47

48

57

62

53

45

45

45

45

45

46

47

53

44

43

43

46

42

42

45

52

45

44

44

42

44

44

44

42

42

Dec.

41

41

41

41

43

46

46

44

43

42

42

42

44

46

46

*42

40

Jan.

' 35

37

Feb.

37

(*)

> 40

h42

1 4°

-

_

-

Month

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

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

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

Calendar year ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

40

40

40

40

39

39

39

40

40

41

41

41

40

40

44

53

*57

66

72

75

81

86

81

62

57

56

54

61

72

82

76

Apr.

71

76

70

63

58

57

55

54

54

54

53

53

61

76

81

76

73

72

73

80

98

95

76

68

65

63

66

68

75

78

-

Secondfoot-days

1,528

1,386

1,290

-

1,107

1,077

1,695

2,062

3,134

2,335

1,513

1,419

1,239

19,785

May

74

82

f!20

134

133

126

123

122

113

113

147

138

123

126

114

106

101

94

93

89

76

77

79

77

73

73

71

98

83

75

81

Maximum

55

52

46

-

_

86

98

147

112

66_

57

59

147

June

85

79

78

75

77

88

78

73

112

96

95

98

83

76

74

73

74

77

73

74

73

78

74

71

66

64

76

68

64

63

-

Minimum

46

42

-

-

_

3S

52

71

63

42

39

-

July

57

55

51

50

50

49

50

50

52

50

49

48

47

47

46

48

53

50

48

46

46

51

66

49

46

44

44

43

43

43

42

Aug.

39

44

49

51

54

48

50

49

54

55

57

49

46

45

44

45

44

43

44

41

48

46

42

42

41

41

41

43

42

41

41

Mean

49.3

46.2

41.6

-

35.7

38.5

54.7

6f.7

101

77. 8

4F 8

45.8

«. 3

54.2

Sept.

40

39

40

41

40

4O

40

41

42

41

41

41

39

39

39

39

42

59

49

44

42

41

41

41

40

39

39

39

40

41

-

Runoff in 

acre-feet

3,030

2,750

2,560

-

2,200

2,140

3,360

4.O9O

6, 22O

4,630

3,000

2,810

2,460

39,250

Winter discharge measurement made on this day.

a No gage-height record; discharge Interpolated.

f Computed from partly estimated gage-height record.

h Computed from staff-gage reading.

Note.- Stage-discharge relation affected by Ice Dec. 17 to about Feb. 21, Mar. 1, 2 (no gageheight record Dec. 18-21, Dec. 29 to Jan. 7, Jan. 9-19, 21-29, Jan. 31 to Feb. 7, Feb. 9, 19-21, 

23-28; discharge computed on basis of winter discharge measurements, weather records, and records 

for Stump Creek near Auburn).
46 SALT RIVER BASIN

Stump Creek near Auburn, Wyo.

Location.- Water-stage recorder, lat. 42°47', long. 111°03', in sec. 26, T. VS., R. 46 

K., 0.6 mile upstream from Wyoming-Idaho State line, 0.8 mile downstream from Tygee 

Creek, and 2j miles west of Auburn.

Drainage area.- 103 square miles.

Records available.- March 1946 to September 1947.

Extremes.- Maximum discharge during year, 396 second-feet May 5 (gage height, 3.30 feet); 

minimum, 6.0 second-feet Feb. 5 (gage height, 0.66 foot), ice jam upstream.

1946-47: Maximum discharge observed, 469 second-feet Apr. 26, 1946 (gage height, 

3.74 feet); minimum, that of Feb. 5, 1947.

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

diversions above and below station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

b

6

8

11

16

17

21 

22

26

31

Oct.

30

32

30

28

30

33

34

32

30

32

32

30

30

32

30

29 

29

36

33

33

33

37

37

32

Nov.

31

30

30

32

31

29

28

29

28

27

26

29

30

27

27

26

28

26

27

27

30 

27

29

28

26

28

28

28

27

27

Dec.

26

26

26

26

27

30

30

28

28

27

27

28

29

33

33

*28

23

23

24

25

25 

24

25

24

24

25

26

23

21

Jan.

> 21

[ 

22

22

22

23

22

23 

23

Feb.

23

23

21

23

25

24

23

21

20

21

*21

21

21

21

21

21

22

23

22

23

24 

24

23

23

23

21

23

23

-

"

Month

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

Calendar year ......................

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

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

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

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

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

Water year 1946-47 ... ..................

Mar.

23

23

23

23

22

23

23

23

23

25

26

24

24

25

29

34

*38

50

65

72

81 

86

84

59

50

50

48

59

76

110 

103

Apr.

85

91

86

70

60

57

55

55

57

56

56

65

86

103

114

10n

104

110

103

117

132 

122

103

98

94

98

114

132

158

156

Secondfoot-days

846

8D5

-

666

624

2,849

3,797

2,804

770

19,895

May

170

304

300

323

328

304

283

274

258

244

274

230

211

205

181

167

159

149

142

134

127 

118

110

103

98

96

94

123

101

90 

97

Maximum

32

33

-

25

110

158

328

161

42

328

June

103

91

93

80

86

101

84

84

135

161

158

140

122

112

103

97

96

93

81

85

81 

78

74

67

65

M

76

69

60

Minimum

26

-

2C

55

9C

6C

22

-

July

56

52

51

51

49

47

48

51

48

44

43

41

40

40

38

35

35

30

28

28

28 

30

Aug.

44

48

32

31

36

32

30

Z = 

27

Mean

28.2

26.0

-

95.0

93.5

25.7

54.5

Sept.

25

23

24

23

25

^c

29

28

25

25

24

Runoff in 

acre-feet

1,680

1,600

-

5,650

1,530

39,460

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Dec. 17-21, Dec. 29 to Jan. i4, Jan. 27, 3'J, Feb. 1, 

5-10, Mar. 1 (no gage-height record Dec. 29 to Jan. 8, Jan. 14, 15, Feb. 7-9; discharge computed on 

basis of weather records).
HENRYS FORK BASIN 47

Henrys Fork near Lake, Idaho

Location.- Water-stage recorder, lat. 44°36", long. 111°21', In SW£ sec. 26, T. 15 N., 

K. 43 K., a quarter of a mile downstream from Henrys Lake Dam and 4 miles south of 

former Lake post office. Datum of gage is 6,450.62 feet above mean sea level, levels 

by Bureau of Reclamation (Corps of Engineers bench mark).

Drainage area.- 104 square miles, including that of Dry Creek Basin.

Records available.- September 1922 to September 1947. May 1920 to September 1922 at site 

3 miles downstream and below mouth of Dry Creek, floodwaters of which have been diverted into Henrys Lake at times since 1923.

Average discharge.- 27 years, 47.3 second-feet.

Extremes.- Maximum discharge during year, about 390 second-feet June 12-23; minimum daily, 

3 second-feet on many days (leakage through reservoir gates).

1920-47: Maximum discharge, 907 second-feet June 13, 1926 (gage height, 5.40 feet); 

minimum, 0.1 second-foot Oct. 3-31, 1937. Outflow from Henrys Lake entirely ceased 

late in summer of 1889.

Remarks.- Records good except those for periods of no gage-height record October to July, 

which are fair. Flow regulated by Henrys Lake (see p. 56 ), gates of which remained 

closed Oct. 5 to June 11. No diversion from Dry Creek into Henrys Lake during year.

Cooperation.- Gage-height record furnished by North Fork Reservoir Co.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

39

39

39

39

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

Nov. Dec. Jan. Feb.

Month

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

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

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

Calendar year 1946 ................. ....

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

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

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

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

May

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

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

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

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

Water year 1946-47 ......................

liar. Apr.

Secondfoot days

237

90

124

18,487

155

168

279

1 200

3 100

8 009

3 772

8 776

S99

26,909

May

Maximum

39

-

224

339

178

-

June

80

80

80

80

80

80

80

80

80

80

80

390

390

390

390

390

390

390

390

390

390

390

389

350

350

350

350

350

350

350

-

Minimum

3

-

3

_

180

3

3

July

280

280

280

280

280

280

280

69

69

70

70

7O

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

204

Aug.

339

339

338

336

336

334

330

330

328

328

326

326

324

324

324

324

324

326

324

324

321

232

180

180

183

183

184

184

183

182

180

Mean

7.6

3

4

50.6

5

6

g

40

100

267

122

283

33.3

73.7

Sept.

178

112

35

37

37

38

38

38

38

38

37

37

37

36

36

35

35

35

35

35

24

4

3

3

3

3

3

3

3

3

-

Runoff in 

acre-feet

47O

179

246

36,680

307

333

553

2,380

6 ,15O

15,890

7,480

17,410

1 , 980

53,380

Note.- No gage-height record Oct. 1 to July 3O; discharge computed on basis of 10 discharge 

easurements and occasional gage readings. Monthly mean discharges only November to M"v.
48 HENRYS FORK BASIN

Island Park Reservoir near Island Park, Idaho

Location.- Electric tape gage, lat. 44°25', long. 111°24', in gatehouse shaft at dam on 

Henrys Fork, a quarter of a mile south of quarter corner between sees. 28 and 29, T. 

13 N., R. 43 E., a quarter of a mile upstream from Buffalo River, and 2 miles west of 

Island Park post office. Datum of gage is at mean sea level (levels by Bureau of 

Reclamation).

Drainage' area.- 478 square miles.

Records available.- November 1938 to September 1947.

Extremes.- Maximum contents during year, 137,230 acre-feet June 10-12 (elevation, 6,303.25 

 feet): minimum 51,465 acre-feet Oct. 1 (elevation, 6,289.17 feet).

1938-47: Maximum contents, 137,805 acre-feet June 8, 1945 (elevation, 6,303.32

feet); minimum after first filling of reservoir in May 1939, 16,855 acre-feet Sept. 27,

1940 (elevation, 6,274.23 feet).

Remarks.- Reservoir is formed by earth fill, rock-faced dam. Storage began-Nov. 15, 1938. 

Capacity, 127,365 acre-feet between elevations 6,239 feet (normal low-water level with 

outlet gates open) and 6,SOS feet (:rest of spillway). Natural flow passing through 

reservoir when outlet gates are open prevents withdrawal of storage to elevation 6,230 

feet (sill of lower outlec). Dead storage negligible. Water is used for irrigation of 

lands in Fremont-Madison irrigation district between Ashton and Rexburg. Gage read 

daily at 8 a.m. Contents given herein are computed from elevations at that time; all 

available for release.

Cooperation.- Reservoir elevations and capacity table furnished by Bureau of Reclamation.

Contents, In acre-feet. 1946 to September 1947

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

Oot.

51,465

52,205

52,325

52,365

52,365

52,130

52,165

52,165

52,205

52,165

52,090

52,050

52,050

51,970

51,970

52,090

52,010

52,050

51,930

51,930

52,010

51,930

52,130

52,365

52,365

52,565

52,485

52,765

52,685

52,685

52,685

Nov.

52,685

52.685

52,605

52,605

52,405

52,405

52,285

52,285

52,285

52,130

52,130

52,050

51,970

51,735

51,660

52,805

53,650

54,635

55,720

56,905

58,605

59,630

60,535

61,640

62,665

63,760

64,820

65,700

66,640

67,645

-

Dec.

68,665

69,650

69,335

69,075

68,820

69,025

69,180

69,960

70,270

70,375

70,270

70,375

70,325

70,325

71,380

72,395

72,340

72,235

72,070

72,070

72,125

72,180

72,285

72,340

72,340

72,340

72,500

72,720

72,770

72,825

72,880

Jan.

73.860

74,855

75,855

76,470

77,315

73,170

79,035

79,905

80,780

81,665

82,495

83,270

84,050

85,120

85,930

86,730

87,535

88,340

89,090

89,910

90,665

91,430

92,195

93,020

93,870

94,780

95,630

96,420

97,215

97,940

98,675

Feb.

93,615

100,285

100,960

101,780

102,525

103,280

104,040

104,735

106,195

106,265'

106,825

107,455

108,090

108,945

110,015

110,800

111,520

112,385

113,110

113,695

114,280

115,089

115,815

116,480

117,220

117,890

118,485

119,160

_

-

-

Mar.

119,835

120,515

121,195

122,110

123,095

123,860

124,550

125,320

126,175

127,030

127,735

128,675

128,985

129,615

130,170

130,325

130,720

130,960

131,195

131,435

131,590

131,670

131,990

131,990

131,990

131,990

132,070

132,070

132,070

132,230

132,390

Apr.

132,470

132,550

132,790

132,870

132,790

132,710

132,710

132,630

132,630

132,550

132,550

132,470

132,470

132,630

132,790

132,870

132,950

133,030

133,190

133,270

133,670

133,750

133,830

133,910

134,075

134,315

134,475

134,720

135,530

136,095

-

Hay

136,095

136,095

136,260

135,855

135,285

134,800

135,205

135,450

135,690

135,690

135,530

135,610

135,530

135,530

135,450

135,365

134,720

134,720

134,720

134,395

134,475

134,395

134,555

134,555

134,555

134,475

134,395

134,800

135,205

135,285

135,450

June

136,420

136,580

136,990

136,990

136,990

136,825

136,420

136,420

136,905

137,230

137,230

137,230

136,745

136,665

136,580

136,420

136,420

136,420

136,175

136,500

136,500

136,175

136,015

135,855

135.690

135,565

135,690

135,770

135,855

136,015

-

July

136,095

136,095

136,015

135,690

135,690

135,690

135,690

135,610

135,690

135,205

134,800

134,315

133,830

132,790

132,070

131,590

130,880

130,090

128,985

128,125

126,875

126,175

125,320

124,475

123,630

122,790

121,650

120,44(5

119,760

118,860

117,740

Aug.

116,410

114,935

112,695

113,405

111,520

110,300

108,945

107,950

106,895

105,565

106,265

105,845

105,705

105,845

105,705

105,495

105,150

104,665

104,525

104,110

103,420

102,940

102,255

101,300

100,625

99,815

99,010

98,275

97,545

96,555

95,760

Sept.

94,975

94,130

93,095

92,130

91,365

90,475

88,655

87,100

85,565

84,235

82,615

81,075

80,080

78,975

78,115

76,865

75,910

75,740

75,350

75,130

75,295

75,295

75,295

75,185

75,130

75,185

75,465

75,520

75,520

75,520

-

Monthly elevation and contents, water year October 1946 to September 1947

Date

Sept 

Oct. 

Nov. 

Dec.

Ca

Jan. 

Feb. 

Mar.

Apr. 

May 

June 

July 

Aug. 

Sept

Wa

30. ...............

lendar year 1946...

31. ...............

.30.... ............

ter year 1946-47. . .

Elevation 

(feet)

6,289.17 

6,289.48 

6,292.80 

6,293.80

-

6,298.05 

6,300.94 

6,302.65 

6,303.11

6,303.10

6,297.61 

6,294.28

-

Contents 

(acre-feet)

51,465 

52,685 

67,645 

72,880

-

98,675 

119,160 

132,390 

136,095 

135,450 

136,015 

117,740 

95,760 

75,520

-

Change In contents 

during month 

(acre-feet)

+1,220 

+14,960 

+5,235

-24,135

+25,795 

+20,485 

+13,230 

+3,705 

-645 

+565 

-18,275 

-21,980 

-20,240

+24,055
HENRYS FORK BASIN 49

Henrys Fork near Island Park, Idaho

Location .- Water-stage recorder, lat. 44°25', long. 111°24', in SW^ sec. 28, T. 13 N. , 

K. 43 E. , an eighth of a mile upstream from Buffalo River, an eighth of a mile downstream from Island Park Dam, and 2 miles west of Island Park post office. Altitude of 

gage, 6,225 feet (from river-profile map).

Drainage area.- 478 square miles.

Records available.- January 1933 to September 1947.

Average discharge.- 14 years, 504 second-feet.

Extremes.- Maximum discharge during year, 2,130 second-feet May 3 (gage height, 5.38 

reet } ; minimum daily, 7 second-feet on many days.

1933-47: Maximum discharge, 2,770 second-feet Apr. 26, 1946 (gage height, 6.15 

feet); minimum daily, 1 second-foot Nov. 16 to Dec. 7, 1938.

Remarks . - Records good. Flow regulated by Henrys Lake (see p. 56 ) and Island Park 

Reservoir (see preceding page).

Cooperation.- Gage-height record and two discharge measurements furnished 

Keclamation.

Bureau of

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

548

548

548

548

S48

548

552

552

548

543

543

543

543

543

548

548

543

543

548

548

548

548

552

548

548

548

552

548

543

543

543

Nov.

538

538

538

538

538

538

538

538

538

538

538

538

538

538

173

Dec.

7

342

538

576

543

509

164

216

509

509

509

509

509

184

7

34Z

509

509

454

454

454

454

454

454

454

454

454

454

454

454

175

Jan.

7

8

8

8

8

8

8

8

8

8

9

9

9

9

9

9

9

9

9

9

9

Feb.

10

10

10

10

10

10

10

10

10

10

10

10

11

11

11

11

11

1111

11

11

1111

11

11

13

13

13

-

-

-

Month

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

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

Decembe r ...................................

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946 47- ......................

Mar.

13

13

13

13

13

13

13

14

14

14

Z8

54

116

181

214

240

261

Z82

299

312

321

329

355

364

364

368

368

373

378

396

409

Apr.

409

422

436

440

432

427

432

422

422

414

418

414

414

427

440

450

463

472

486

509

543

562

572

586

610

645

699

767

860

1,280

-

Secondfoot-days

16,954

7,810

12,614

236> 324

248

302

6, 145

15,873

36,794

34,138

52[393

26,501

217,574

Bay

1,470

1,500

1,850

2,003

1,640

1,330

1,280

1,300

1,340

1,340

1,320

1,320

1,320

1,320

1,300

1,270

1,150

1,100

1,100

1,060

950

945

956

961

945

865

674

753

792

797

846

Maximum

552

538

576

2,400

9

13

409

1.28CT

2.OOO

1,430

1,100

1,310

1,320

2,000

June

930

1,080

1,260

1,290

1,260

1,240

1,190

1,190

1,280

1,320

1,410

1,430

1,260

1,180

1,150

1,140

1,140

1,150

1,050

1,180

1,360

1,140

1,110

1,070

1,050

890

826

836

856

870

-

Minimum

543

7

7

7

7

13

409

674

69S

767

476

7

July

870

875

870

841

836

836

831

826

802

738

699

762

935

890

777

841

961

961

971

976

971

966

966

961

961

561

956

961

956

945

1,100

Aug.

1,270

1,310

1,310

1,300

1,310

1,310

1,300

1,260

1,050

971

971

856

767

767

836

890

890

890

895

1,020

1,020

1,020

,020

,020

,020

,020

,020

,020

1,020

l.OEO

1,020

Hear

547

260

407

648

8 .O

10 . 8

198

529

1 , 187

1 , 138

1,045

883

596

Sept.

1,020

1,020

1,020

1,020

1,020

1,080

1,320

1,280

1,280

1,280

1,280

1,200

1,020

1,020

1,020

1,020

1,010

935

797

635

586

586

586

543

524

495

476

476

47S

476

Runoff in 

acre-feet

33,630

15,490

25,020

468,700

492

599

12,190

31,480

67^710

55,140

64,250

52,560

431,500

Note.- Discharge Nov. 16 to Dec. 1, Dec. 15 to Mar. 12 (computed from staff-gage readlags).
50 HENRYS FORK BASIN

Henrys Fork at Warm River, Idaho

Location.- Water-stage recorder, lat. 44°07', long. Ill 0 20i, in sec. 12, T. 9 N., R. 43 

K., 1,000 feet upstream from Warm River and half a mile northwest of Warm Fiver railroad station. Altitude of gage, 5,255 feet (from river-profile map).

Drainage area.- 660 square miles.

Records available.- September 1910 to March 1915, April 1918 to September 1947.

Average discharge.- 33 years, 985 second-feet.

Extremes. - Maximum discharge during year, 2,710 'second-feet May 4 (gage height, 6.97 

feet); minimum, 249 second-feet Jan. 2 (gage height, 3.25 feet).

1910-15, 1918-47: Maximum discharge, 3,540 second-feet May 18, 1927; meximum gage 

height, 7.80 feet Apr. 27, 1946; minimum discharge, 218 second-feet Jan. 1?, 1940 

(gage height, 3.17 feet).

Remarks.- Records good. Flow regulated by Henrys Lake (see p. 56) and Islard Park 

Keservoir (see p. 48). Some water diverted above station for irrigation of meadows 

on headwaters.

Discharge, in second-feet, water year October 1946 to September 1947

Day

I

6

11

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

956

1,030

982

962

943

930

936

936

930

930

917

924

930

924

924

924

917

936

Nov.

930

917

917

904

904

910

910

924

910

904

904

917

917

917

910

440

404

404

448

466

358

44fr

435

394

485

453

Dec.

422

435

924

943

995

943

891

462

769

917

910

924

917

917

471

346

852

930

910

930

891

8t>9

853

853

853

865

872

829

aSOO

a820

Jan.

286

318

362

404

408

430

444

382

394

417

458

448

412

390

366

378

426

430

453

4b3

444

440

440

440

430

430

404

386

430

426

366

Feb.

426

448

444

439

434

430

413

372

388

443

443

443

452

452

443

448

448

409

434

413

426

409

430

426

413

317

413

448

-

-

~

Month

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

Calendar year 1946 ......................

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

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

Hay. .......................................

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

September. ..... ............ .~. .............

Water year 1946-47 ......................

Mar.

409

422

430

434

430

404

422

434

434

439

456

434

474

520

568

597

622

633

674

695

712

733

813

795

784

778

778

784

795

831

861

Apr.

855

873

885

879

873

861

855

837

837

837

813

807

813

837

879

909

939

987

1,020

1,090

1,130

1,120

,150

,190

,260

,380

,480

,590

1,670

1,830

-

Secondfoot-days

25,113

397,760

38,682

377,543

May

2,140

2,100

2,340

2,660

2,470

2,120

1,970

1,960

1,990

1,970

1,930

1,920

1,950

1,910

1,870

1,810

1,730

1,620

1,600

1,570

1,490

1,440

1,440

1,420

1,420

1,380

1,250

1,180

1,220

1,250

1,320

Maximum

995

3,060

861

1,690

2,660

June

1,440

1,510

1,720

1,800

1,770

1,750

1,720

1,710

1,860

1,890

1,910

1,940

1,830

1,680

1,640

1,610

1,630

1,640

1,580

1 , 650

1,870

1,730

1,590

1,550

1,500

1,450

1,290

1,290

1,290

1,310

Minimum

346

346

897

286

July

1,300

1,290

1,290

1,290

1,260

1,260

1,250

1,250

1,260

1,210

1,160

1,140

1,280

1,430

1,260

1,200

1,410

1,410

1,420

1,430

1,420

1,420

1,430

1,430

1,410

1,410

1,400

1,390

1,390

1,390

1,410

Aug.

1,680

1,750

1,760

1,750

1,740

1,740

1,740

1,720

1,560

1,390

1,380

1,350

1,150

1,140

1,150

1,260

1,260

1,350

1,430

1,420

1,420

1,420

-1,420

1,420

1,420

1,420

Mean

810

1,090

_ - T

1 452

1,289

1,0.34

Sept.

1,420

1,420

1,430

1,420

1,420

1,420

1,640

1,680

1,680

1,690

1,660

1,650

1,380

1,380

1,420

1,090

987

927

897

Runoff ir. 

ao re-feet

49,810

788,900

76,720

 748,900

a No gage-height record; dlachar 

ear A3hton.

mputed on basi3 of reoord3 for 3tation3 near Island Park and
HENRYS FORK BASIN 51

Henrys Fork near Ashton, Idaho

Location.- Water-stage recorder, lat. 44°05', long. 111°30', in sec. 28, T. 9 N., R. 42 

K., a quarter of a mile downstream from power plant and 3 miles west of Ashton. 

Altitude of gage, 5,095 feet (from river-profile map).

Drainage area.- 1,030 square miles.

Records available.- August 1902 to June 1909, April 1920 to September 1947.

Average discharge.- 28 years (1903-8, 1924-47), 1,281 second-feet.

Extremes.- Maximum discharge during year, 4,140 second-feet May 4 (gage height, 7.64 

feet); minimum, 368 second-feet (regulated) Jan. 3; minimum daily, 519 sscond-feet 

Jan. 3.

1902-9, 1920-47: Maximum discharge, 6,220 second-feet May 7, 1925; minimum, 65 

second-feet (regulated) Oct. 16, 1935 (gage height, 4.59 feet); minimum daily, 440 

second-feet Dec. 5, 1931.

Remarks.- Records excellent. Flow regulated by power plant above station and by Henrys 

Lake (see p. 56) and Island Park Reservoir (see p. 48). Some water diverted above 

station for irrigation of meadows on headwaters.

Cooperation.- Gage-height record during nonirrigation season furnished by Utah Power & 

Light (Jo.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,330

1,470

1,340

1,320

1,300

1,260

1,280

1,300

1,300

1,280

1,260

1,270

1,280

1,300

1,300

1,300

1,300

1,280

1,280

1,270

1,280

1,330

1,450

1,340

1,340

1,360

1,340

1,390

1,340

1,300

1,390

Nov.

,330

,300

,270

,270

,280

,300

,280

,300

,300

,280

,270

,270

,280

1,280

1,320

803

722

788

796

832

710

770

749

787

781

737

788

737

741

729

-

Dec.

723

760

1,100

1,270

1,340

1,300

1,260

825

1,010

1,260

1,200

1,270

1,230

1,260

866

760

770

1,100

1,280

1,260

1,200

1,130

1,160

1,120

1,140

1,140

1,140

1,130

1,080

1,090

1,120

Jan.

792

656

519

738

656

781

718

696

636

707

748

718

749

627

656

636

676

686

707

718

686

728

718

718

707

738

696

646

676

718

646

Feb.

656

728

718

718

728

728

728

627

618

707

738

728

728

738

707

728

760

728

728

707

728

718

696

718

738

636

618

686

-

_

-

Month

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

Calendar year 1946 ......................

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

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

Water year 1946-47 ......................

Mar.

676

707

760

686

728

707

707

718

707

803

836

728

803

858

916

952

988

,040

,080

,100

,130

,140

,240

,160

, ,130

1 ,120

,120

,120

,170

,260

,270

Apr.

1,240

1,320

1,270

1,270

1,260

1,240

1,240

1,210

1,200

1,210

1,170

1,170

1,200

1,260

1,340

1,360

1,470

1,520

1,530

1,700

1,720

1,700

1,680

1,750

1,810

2,020

2,200

2,300

2,510

2,630

-

Secondfoot-days

34,294

555,604

48,430

524,735

May

2,970

2,990

3,330

3,720

3,510

3,100

2,860

2,860

2,910

2,800

2,740

2,720

2,760

2,780

2,610

2,490

2,420

2,280

2,260

2,220

2,120

2,020

2,000

1,960

1,980

1,920

1,810

1,700

1,790

1,790

1,960

Maximum

1,340

4,660

2,080

3,720

June

2,200

2,160

2,380

2,470

2,400

2,380

2,320

2,320

2,680

2,760

2,630

2,610

2,470

2,220

2,180

2,140

2,200

2,220

2,120

2,200

2,440

2,300

2,040

2,020

1,960

1,940

1,730

1,730

1,700

1,700

Minimum

723

646

519

1,210

519

July Aug .

1,660 1,980

1,660 2,O80

1,650 2,140

1,630 2,120

1,600 2,140

1,580 2,140

1,580 2,160

1,580 2,160

1,610 2,040

1,550 1,810

1,470 1,810

1,420 1,770

1,560 1,530

1,880 1,500

1,700 1,500

1,500 1,610

1,720 1,600

1,770 1,630

1,790 1,630

1,790 1,720

1,770 1,860

1,790 1,830

1,790 1,830

1,790 1,810

1,770 1,790

1,770 1,790

1,770 1,830

1,790 1,810

1,770 1,790

1,770 1,810

1,770 1,810

Mea-i

1,316

1,106

1,522

1,614

1,438

Sept.

1,790

1,790

1,830

1,790

1,770

1,770

2,000

2,080

2,060

2,060

1,980

1,980

1,680

1,610

1,610

1,610

1,630

1,770

1,580

1,420

1,300

1,300

1,320

1,280

1,230

1,320

1,240

1,210

1,210

1,210

Runoff in 

acre-feet

68,020

1,102,000

96,060

1,041,000
zt HENRYS FORK BASIN

Diversions from Henrys Fork between Ashton and St. Anthony gaging stations, Idaho

Between Ashton and St. Anthony gaging stations seven canals divert water frcra Henrys 

Fork for irrigation. Records available each irrigation season from 1919 to 1947. Discharge of canals computed from daily or biweekly staff-gage readings, or interpolated, 

and combined to show total diverted flow. Records good.

Discharge, in second-feet, water year October 1946 to September 1947

Day

i

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

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

Calendar year ......................

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

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

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

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

Mar. Apr.

Secondfoot days

15,077

-

May

712

743

793

803

799

826

848

1,184

1,212

1,216

1,228

1,225

1,199

940

999

1,000

1,004

1,079

1,164

1,201

1,215

1,207

1,219

1,272

1,283

1,335

1,339

1,342

1,306

1,258

1,199

Maximum

790

-

June

1,193

1,009

752

774

875

830

829

887

856

864

794

816

844

878

884

929

968

1,119

1,170

1,189

1,167

1,082

975

1,040

1,053

1,054

1,041

995

939

979

-

Minimum

269

-

July

789

993

995

1,OOC

1,011

1,017

1,024

1,067

1,046

990

993

973

943

1,057

1,132

1,064

1,071

1,077

1,163

1,135

1,122

1,115

1,097

1,084

1,056

1,071

1,083

1,100

1,088

1,153

1,160

A.g.

1,155

1,046

1,032

1,021

893

808

866

939

969

951

930

904

831

812

837

831

860

866

836

843

767

756

769

761

744

796

799

781

780

736

734

Mean

5C3

-

Sept.

723

697

718

731

769

767

773

762

790

761

676

668

637

512

475

443

447

307

278

275

270

270

269

297

297

294

294

293

292

292

Runoff in 

acre-feet

29,900

272,400
HENRYS PORK BASIN 53

Henrys Pork at St. Anthony, Idaho

L-icatlon.- Water-stage recorder, lat. 43°58 I , long. 111 0 41', in sec. 1, T. 7 N., R. 40 E., 

hall' a mile upstream from bridge on main street of St. Anthony. Altitude of gage, 

4,950 feet (from river-profile map).

Drainage area.- 1,730 square miles.

Records available.- March 1919 to September 1947 (irrigation seasons only).

Extremes.- Maximum discharge recorded during year, 6,850 second-feet May 4 (gage height, 

b.Ub feet); minimum daily recorded, 617 second-feet July 12.

1919-47: Maximum discharge recorded, 9,030 second-feet May 8, 1925 (gage height, 

6.70 feet); minimum daily recorded, 413 second-feet July 22, 1931.

Remarks.- Records excellent. Diversions above station for irrigation. Flow regulated by 

power plant 17 miles above station and by Henrys Lake (see p. 56), Island Park 

Reservoir (see p. 48), and Grassy Lake (see p. 56).

Discharge, in second feet. water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

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

Calendar year ......................

Uav

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

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

Mar. Apr.

Secondfoot-days

_

_

_

104,730

86,720

25,801

36,211

45,600

-

May

3,960

4,090

5,130

6,010

5,960

5,300

4,750

4,320

4,370

3,930

3,680

3,660

3,830

4,160

3,830

3,500

3,400

3,130

2,770

2,520

2,430

2,380

2,340

2,170

2,060

2,040

2,020

1,940

1,660

1,510

1,880

Maximum

_

_

_

6,010

5,210

1,400

1,490

2,100

-

June

3,530

3,530

3,830

3,700

3,300

3,180

3,110

2,960

4,110

5,210

4,270

3,830

3,260

2,770

2,770

2,680

2,610

2,560

2,320

2,700

3,530

2,870

2,170

1,960

1,790

1,640

1,580

1,880

1,610

1,460

-

Minimum

_

_

_

1.51C

1,46(

61

87

1,26(

-

July Aug.

1,400 972

1,210 1,190

1,140 : ,280

1,120 : ,310

1,020 ,430

919 ,490

866 : ,430

806 ,400

816 1,310

796

702

617

642

919

826

634

758

767

758

739

730

739

796

866

887

767

758

730

676

676

721

1,110

1,180

1,110

940

887

876

962

940

951

940

983

1,200

1,250

,200

,210

,250

,210

,2OO

,210

1,240

1,250

1,300

Mean

.

_

_

3 3,378

3 2,891

832

5 1,168

5 1,520

-

Sept.

1,300

1,330

1,330

1,330

1,290

1,260

1,340

1,490

1,480

1,560

1,680

1,710

1,630

1,590

1,490

1,510

1,580

2,103

1,980

1,750

1,540

1,510

1,510

1,490

1,420

1,460

1,540

1,460

1,460

1,480

-

Runoff in 

acre feet

_

_

_

207,700

172,003

51,180

71,820

90,450

593,200
54 HENRYS FORK BASIN

Diversions from Henrys Fork between St. Anthony and Rexburg gaging stations, Idaho

Between St. Anthony and Rexburg gaging stations four canals divert water f "om Henrys 

Fork for irrigation. Records available for part of each irrigation season from 1919 to 

1947. Discharge of canals computed from daily or biweekly staff-gage readings or interpolated, and combined to show total diverted flow. Records good.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Oct. Nov. Dec. Jan. Feb.

Month

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

Calendar year .............. .......

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

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

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

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

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

The per Lod ................ . ...

Mar. Apr.

Secondfoot-days

_

_

29,221

24,164

11,509

-

May

749

771

791

801

852

954

1,026

1,077

1,101

1,107

1,059

994

938

837

850 .

850

850

861

865

923

927

922

934

953

1,012

1,034

1,055

1,046

1,026

1,056

1,000

Maximum

_

_

1,107

673

-

June

917

837

703

672

637

64E

683

65S

645

593

589

61E

682

732

750

765

816

842

837

872

799

805

785

818

840

832

845

799

771

754

-

Minimum

646

111

-

July

784

774

862

835

801

742

756

767

772

725

716

646

73S

847

810

669

816

762

833

805

788

736

829

829

797

740

791

785

787

795

825

Aug.

861

770

772

777

595

635

595

594

657

700

684

652

568

585

617

676

669

634

683

678

771

673

616

581

521

617

632

608

621

636

628

Mean

3fH

-

Sept.

617

636

635

665

650

655

661

665

673

625

576

540

529

527

367

329

241

216

139

115

111

137

150

150

150

150

150

150

150

150

Runoff in 

ao re feet

22,830

213,700
HENRYS FORK BASIN 55

Henrys Fork near Rexburg, Idaho

Location.- Water-stage recorder, lat. 43°50', long. Ill"54', in sep. 30, T. 6 N., R. 39 

FT]Just downstream from highway bridge, downstream from all tributaries, and 7 miles 

west of Rexbupg. Altitude of gage, 4,807 feet (from river-profile map).

Drainage area.- 3,010 square miles.

Records available.- April 1909 to September 1947.

Average discharge.- 39 years (1908-47), 1,911 second-feet.

Extremes.- M-ximum discharge during year, 6,370 second-feet June 11 (gage height, 8.99 

reet); minimum, 650 second-feet Aug. 1 (gage height, 3.04 feet).

1909-47: Maximum discharge, 9,490 second-feet June 29, 1927 (gage height, 9.90 

feet); minimum, 183 second-feet Mar. 24-28, 1934 (gage height, 1.45 feet).

Remarks - Records good except those for period of ice effect, which are fair. Flow regula tea by operation of power plant near Ashton and by Henrys Lake (see following page), 

Island Park Reservoir (see p. 48), and Grassy Lake (see following page). Many diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1.

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

29

Oct.

1.810

1,980

2,140

2,090

2,080

2,040

2,020

2,090

2,100

2,080

2,050

2,000

2,020

2,020

2,020

2,030

2,040

2,080

2,070

2,040

2,020

2,080

2,200

2,450

2,340

2,250

2,350

2,390

2,390

2,350

2,270

Nov.

2,230

2,230

2,120

2,080

2,160

2,200

2,220

2,250

2,230

2,220

2,170

2,160

2,080

2,040

2,120

2,070

1,700

1,610

1,660

1,740

1,770

1,690

1,780

1,800

1,760

1,710

1,660

1,660

1,650

1,650

-

Dec.

1,640

1,620

1,650

1,900

1,960

2,030

2,050

1,980

1,610

1,800

1,880

1,880

1,910

1,920

1,940

1,670

1,520

1,460

1,680

1,910

2,020

1,980

2,010

2,000

1,920

1,930

*1,970

1,990

1,800

1,700

1,650

Jan.

1,470

1,300

1,220

1,120

1,340

1,350

1.4OO

1,370

1,310

1,260

1,310

1,380

1,390

1,350

1,270

1,150

1,200

1,250

1,270

1,300

1,320

1,350

1,350

1,340

1,340

1,350

1,380

1,300

*1,270

1,270

1,250

Feb.

1,250

1,300

1,330

1,350

1,350

1,350

1,350

1,300

1,250

1,200

1,250

1,300

1,350

1,450

1,500

1,650

1,750

1,920

1,740

1,650

1,560

1,550

1,440

1,400

1,350

1,240

*1,160

1,180

-

-

-

Month

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

Calendar year 1946 ......................

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

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

Water year 1946-47 ......................

liar.

1,160

1,130

1,220

1,210

1,220

1,240

1,180

1,210

1,230

1,290

1,430

1,430

1,320

1,320

1,380

1,540

1,650

1,710

1,680

1,690

1,660

1,670

1,630

1,740

1,580

1,410

1,360

1,320

1,250

1,360

1,520

Apr.

1,570

1,530

1,630

1,590

1,570

1,530

1,530

1,480

1,420

1,380

1,360

1,310

1,310

1,280

1,390

1,560

1,560

1,560

1,610

1,620

1,830

1,910

1,820

1,780

1,810

1,850

1,990

2,220

2,420

2,790

-

Secondfoot-days

65,890

58,420

56,980

747,942

51,720

688,499

May

3,130

3,540

3,800

4,710

5,720

6,010

5,570

5,170

4,770

4,510

4,380

4,250

4,250

4,550

4,860

4,440

4,070

3,850

3,560

3,190

2,880

2,620

2,430

2,270

2,040

1,960

1,850

1,800

1,710

1,440

1,420

Maximum

2,450

2,250

2,050

7,080

2,570

6,320

June

2,400

3,620

4,040

4,500

4,640

4,370

4,140

3,920

4,020

5,140

6,320

6,160

5,690

4,790

4,020

3,750

3,320

2,990

2,750

2,570

3,060

3,590

3,100

2,410

2,060

1,840

1,740

1,980

2,260

2,110

-

Minimum

1,8K

1,61C

1,46C

63C

1 12C

1,130

650

July

1,860

1,590

1,380

1,270

1,250

1,130

1,020

904

843

820

798

730

680

660

776

814

776

755

755

735

720

715

700

700

735

776

755

710

680

670

660

Aug.

650

725

1,020

1,280

1,440

1,500

1,510

1,410

1,350

1,240

1,160

1,310

1,290

1,110

970

918

937

911

950

911

1,050

1,240

1,230

1,310

1,340

1,290

1,220

1,190

1,220

1,200

1,240

Mean

2,125

1,947

1,838

2,0'9

3 577

1,724

1.8S6

Sept.

1,240

1,190

1,160

1,180

1,170

1,130

1,130

1,320

1,360

1,400

1,520

1,590

1,660

1,620

1,610

1,660

1,770

2,140

2,570

2,540

2,360

2,200

2,160

2,140

2,070

1,960

1,980

2,010

1,930

1,950

Runoff in 

ao re-feet

130,700

115,900

113,000

1,484,000

102,600

1,366,000

* Winter discharge measurement made on this day. 

Hote.- Stage-discharge relation affected by Ice Dec 29 to Feb. 17.
HENRYS FORK BASIN

and occasionally during remainder of year. Records given herein represent usable c 

tents. Gage-height record and capacity table furnished by North Fork Reservoir Co.

Grassy Lake.- Mercury pressure gage, lat. 44°08' , long. 110°49', in gatehouse at dam on 

(irassv '"reek, approximately in sec. 7, T. 48 N., R. 116 W. (unsurveyed) , half a mile

. .-.__... __..,_,_ _._ ,'_,,__ .__..,_,____ _^ . ,._ _.. ,,.._ "-<- um O f gage j.g at mean sea

uare miles, including

sy Lake. Records availa-

^ -ij , -L -I*±\J .

Reservoir is formed by earth-fill, rock-faced dam; storage began Oct. 18, 1939. Capacity, 15,182 acre-feet between elevations 7,135.0 feet (sill of trash rack) and 

7.210.U feet (crest of spillway) above mean sea level. Water is used for irrigation 

of lands in Fremont-Madison irrigation district, Idaho. Gage read once daily about 

7 a.m. Records given herein represent usable contents. Gage-height record and capacity table furnished by Bureau of Reclamation.

Monthly elevations gage heights and contents, water year October 1946 to September 1947

Date

Calendar year 1946 .......

Sept. 30. ...................

Water year 1946-47. ......

Gage 

height 

(feet)

-

-

-

Henrys Lal

Contents 

(acrefeet)

-

aS5,600

-

ce

Change in 

content s 

during month 

(acre-feet)

+4,236

+600

-7,100

Elevation 

(feet)

-

7,203.55

-

Grassy Lali

Contents 

(acrefeet)

-

13,220

-

e

Change in 

contents 

during month 

(acre-feet

-1,403

+102

-62

-62

-1,916

+1,106

a No gage-height record; contents interpolated.
HENRYS FORK BASIN 

Diversions from Fall River above gaging station, near Squirrel, Idaho

Above Squirrel gaging station two canals divert water from Pall River for irrigation. 

Records available for part of each irrigation season from 1919 to 1947. Discharge of 

canals computed from daily or beweekly staff-gage readings, or interpolated, and combined 

to show total diverted flow. Records good.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2t>

26

27

28

29

30

31

Oot. Nov. Dec. Jan. Feb.

Month

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

Calendar year ......................

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

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

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

Mar. Apr.

Secondfoot-days

_

_

2,602

1,599

-

May

o

o

0

0

o

o

0

0

0

0

o

0

o

0

0

o

o

0

0

0

50

50

55

60

60

60

65

70

72

72

72

Maximum

_

_

_

72

150

319

252

97

-

June

70

70

60

50

50

50

50

5C

50

50

50

50

50

50

50

80

90

100

110

120

120

120

121

121

125

130

135

140

140

150

-

Minimum

_

_

5C

C

-

July

160

180

190

190

190

195

195

199

203

238

236

236

225

233

222

237

245

243

245

251

246

257

290

319

258

257

259

2o?

262

253

251

Aug.

250

252

233

209

181

179

177

180

182

185

183

156

156

152

137

129

134

133

129

129

127

128

108

108

107

103

103

lol

103

101

97

Mean

.

_

53.3

-

Sept.

97

97

97

97

96

96

96

96

96

97

73

71

71

71

71

70

69

69

69

0

0

0

0

O

0

O

0

0

0

0

-

Runoff in 

acre-feet

.

_

5,160

3,170

23,250

881401 O - 50-5
58 HENRYS PORK BASIN

Pall River near Squirrel, Idaho

Location.- Staff gage, lat. 44°04', long. 111°15', in sec. 34, T. 9 N., R. 44 E., 4 miles 

northeast of Squirrel and 10 miles upstream from Conant Creek.

Drainage area.- 380 square miles.

Records available.- January 1904 to June 1909, May 1918 to September 1947. August 1902 

to December 1903 at Wilson's sawmill, 3 miles upstream.

Average discharge.- 34 years (1904-8, 1917-47), 742 second-feet.

Extremes.- Maximum daily discharge during year, 3,500 second-feet June 10; minimum daily, 

3B4 second-feet Peb. 26.

1904-9, 1917-47: Maximum discharge observed, 6,440 second-feet June 27, 1927; 

minimum observed, 72 second-feet Feb. 9, 1930.

Remarks.- Records good July to September and fair for other periods. Flow since October 

1939 partly regulated by Grassy Lake (see p. 56 ). Two diversions above station for 

irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

5OO

664

585

560

546

538

530

546

540

530

520

515

510

508

510

520

522

517

508

500

500

500

540

740

740

738

680

628

595

554

543

Nov.

530

515

546

546

546

538

530

525

520

515

495

470

47O

485

492

497

500

505

530

515

500

500

510

530

510

530

550

530

515

515

-

Dec.

505

500

495

*485

515

508

505

503

500

500

500

500

520

594

575

555 4'42

450

4SO

470

475

480

485

488

490

515

500

490

450

400

415

Jan.

425

435

445

455

470

478

*4S4

490

495

498

500

495

482

460

400

440

455

4 SO

465

470

570

468

465

4 S3

462

450

460

460

455

450

445

Feb.

445

445

450

 450

442

440

440

440

435

435

435

442

445

450

455

465

470

460

450

435

430

420

415

410

400

384

403

4O3

_

_

-

Month

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

Calendar year 1946 ......................

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

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

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

Water year 1946-47 ......................

Mar.

403

403

403

403

403

403

405

406

408

410

412

414

415

416

420

424

430

435

440

442

436

435

434

432

430

430

430

429

440

450

470

Apr.

465

455

455

455

455

460

460

465

470

475

480

490

500

530

550

550

554

560

570

600

655

660

655

637

635

640

750

1,010

1,100

1,200

-

Seoondfoot-days

15,270

277,637

19 321

18.S85

295,297

May

1,330

1,560

2,350

2,900

2,830

2,780

2,750

2.78O

2,800

2,500

2,180

2,180

2,370

2,600

2,120

2,000

2,050

2,030

1,920

1,820

1,940

1,900

1,900

1,920

1,960

2,000

2,05Q

1,900

1,650

1,630

1,910

Maximum

594

2,700

5OO

870

3,500

June

2,750

2,580

2,450

2,320

2,100

2,000

1,980

2,100

3,320

3,500

3,000

2,250

1,900

1,780

1,830

1,890

1,830

1,780

2,100

2,680

2,400

2,000

1,610

1,540

1,480

1,550

1,870

1,600

1,250

1,150

-

Minimum

400

400

455

579

554

384

July

1,000

950

942

942

942

940

930

920

840

760

760

760

702

684

630

666

648

630

648

613

613

630

613

562

596

579

579

562

554

554

579

Aug.

588

579

622

657

657

639

622

675

693

.730

693

639

622

604

613

622

604

588

604

588

604

622

622

604

604

604

604

604

622

604

588

Mean

493

T61

623

809

Sept.

588

570

588

570

570

554

554

554

554

588

588

570

570

570

562

562

604

870

790

770

750

730

720

711

650

579

,620

620

579

580

-

Runoff in 

acre-feet

30,290

550,700

480

44 290

37,060

585,600

Winter discharge measurement made on this day. 

Note.- (Jage read once dally July 8 to Sept. 19; discharge for other periods computed on basls_of 

onee-to thrice-weekly gage readings, 10 discharge measurements, and records for Pall River near 

Chester and Teton River near St. Anthony (stage-discharge relation affeated by Ice at times December 

to February).
HENRYS PORK BASIN

59

Diversions from Pall River between Squirrel and Chester gaging stations, Idaho

Between Squirrel and Chester gaging stations eight canals divert water from Fall River 

for irrigation. Records available for part of each irrigation season from 1919 to 1947. 

Discharge of canals computed from daily or biweekly staff-gage readings, or interpolated, 

and combined to show total diverted flow. Records good.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

R

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

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

Calendar year ......................

March

Hay'

July . ....

September.'. ................................

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

Mar. Apr.

Seoondfoot-days

17,681

16,743

9,944

-

May

57

56

55

53

51

50

46

392

470

493

518

517

524

503

396

392

387

442

482

435

484

594

604

615

624

640

662

664

669

678

693

Maximum

461

-

June

651

616

570

560

544

530

515

510

505

502

491

485

473

458

497

542

572

579

591

565

605

622

649

680

707

739

762

752

720

689

-

Minimum

429

216

-

July

598

599

587

612

625

642

658

665

631

606

592

578

552

531

528

543

531

520

514

517

511

429

450

445

440

497

491

487

443

456

465

Aug.

492

476

478

469

463

465

468

448

450

425

420

422

457

443

458

456

451

446

444

446

451

445

445

446

443

435

429

410

411

408

409

Mean

331

-

Sept.

391

389

396

244

392

377

432

441

437

461

385

359

328

419

418

420

409

367

361

305

224

224

224

224

224

223

220

218

216

216

-

Runoff in 

acre-feet

19,720

141,700
60 HENRYS FORK BASIN 

Fall River near Chester, Idaho

Location.- Water-stage recorder, lat. 44°01", long. 111 0 34', in sec. 13, T. 8 N., R. 41 

E., half a mile upstream from mouth and 2 miles north of Chester. Altitude of gage, 

5,060 feet (from river-profile map).

Drainage area.- 560 square miles.

Records available.- April 1920 to September 1947 (irrigation seasons only).

Extremes.- Maximum discharge during period May to September, 3,460 second-feet May 5 (gage 

height, 4.82 feet); minimum daily, 34 second.-feet July 29.

1920-47: Maximum discharge, 6,380 second-feet June 27, 1927 (gage height, 6.60 

feet); minimum, 9 second-feet Aug. 7, 1923.

Remarks.- Records excellent. Flow since October 1939 partly regulated by Grassy Lake 

(see p. 56). Station is below all diversions for irrigation from Fall River.

Discharge, in second- feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

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

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

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

Calendar year ......................

January

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

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

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

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

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

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

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

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

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

Mar. Apr.

Secondf cot-days

_

_

63,690

48,800

4,709

6,996

10,476

-

May

1,760

2,040

2,730

3,170

3,200

2,970

2,760

2,530

2,600

2,300

2,110

2,110

2,130

2,420

2,130

1,970

1,990

1,950

1,760

1,700

1,730

1,680

1,650

1,560

1,560

1,640

1,810

1,780

1,320

1,170

1,410

Maximum

_

_

3,200

3,150

529

370

543

-

June

2,550

2,370

2,300

2,060

1,810

1,730

1,710

1,740

2,610

3,150

2,280

1,810

1,590

1,530

1,580

1,540

1,510

1,460

1,340

1,670

1,950

1,380

1,080

950

855

770

910

1,120

802

643

-

Minimum

_

_

1,170

643

34

123

193

-

July

529

460

412

390

298

226

204

183

159

134

117

132

137

120

101

88

71

60

59

54

47

78

110

123

117

43

36

35

34

a62

90

Aug.

123

146

172

2O4

226

219

201

242

278

290

370

261

211

201

201

215

208

208

208

208

219

230

230

230

230

242

234

230

261

253

245

Mean

_

2,055

1,627

152

226

349

-

Sept.

238

234

230

278

238

211

183

203

209

223

257

274

290

249

204

204

238

440

508

508

508

529

543

543

454

454

543

494

481

494

-

Runoff in

acre-feet

126,300

96,790

9,340

13,880

20,780

267,100

a Ho gage-height record; discharge interpolated.
HENRYS PORK BASIN 

Teton River near Victor, Idaho

61

Location.- Water-stage recorder, lat. 43°33'50", long. 111 D 04'00", on line between sees.

 19 and 30, T. 3 N., R. 46 E., 100 feet downstream from Moose Creek, 200 feet upstream 

from String Canal, and 3| miles southeast of Victor.

Drainage area.- 47.6 square miles.

Records available.- May 1946 to September 1947.

Extremes.- Maximum discharge during year, 305 second-feet May 27; maximum gage height

 recorded, 1.94 feet Jan. 4 (ice jam); minimum discharge recorded, 22 second-feet Feb. 20 

(gage height, -0.15 foot), but may have been less during periods of ice effect or no 

gage-height record.

1946-47: Maximum discharge observed, 310 second-feet June 6, 1946; maximum gage 

height recorded, that of Jan. 4, 1947; minimum discharge recorded, that of Feb. 20, 

1947.

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

those for June 20 to July 20, which are fair. No regulation or diversion above station.

Rating table, water year 1946-47, except periods of ice effect

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

(Shifting-control method used Oct. 1-20)

0.2 49

.4 75

.7 123

1.0 178

1.3 241

1.6 315

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

51

56

51

50

50

49

49

50

49

48

47

49

49

49

54

51

50

49

48

48

50

51

53

49

50

50

50

49

48

46

46

Nov.

44

43

44

44

44

43

43

42

41

42

41

40

40

40

4O

40

39

39

40

40

40

40

41

40

39

40

40

39

39

39

-

Dec.

39

39

39

39

40

41

41

40

39

39

39

39

39

41

41

 40

35

40

 45

40

37

39

41

40

40

42

41

37

35

33

35

Jan.

38

,> »

Se

Month

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

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

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

Calendar year .........

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

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

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

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

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

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

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

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

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

Water year 1946-47 ..........

 Feb.

35

*34

33

33

32

32

31

31

31

32

32

32

32

32

31

30

30

30

_

.

-

Secondfoot-days

1 539

1 , 226

1,215

1,134

923

1,020

1,330

6, 857

6,918

3,920

1,*677

30,045

Mar.

30

31

31

31

30

30

31

31

32

32

32

32

32

32

33

33

 34

34

33

34

34

35

35

35

34

34

34

34

35

36

36

Maximum

56

44

45

36

295

275

176

90

60

295

Apr.

36

36

36

36

35

34

34

34

34

34

34

35

37

42

43

44

46

46

47

48

48

47

46

46

48

51

60

71

62

80

May

86

108

155

188

198

215

223

253

288

265

258

248

234

215

206

206

217

219

213

204

213

221

217

221

234

258

295

280

246

232

241

Minimum

46

39

33

30

30

34

86*

174

60

53

June

246

255

258

241

226

226

230

248

272

246

232

219

215

221

230

239

248

243

251

275

239

228

215

206

217

215

221

198

184

174

Mean

49.6

40.9

39.2

36.6

33.0

32 . 9

221* 44.3

231

T Itb5>e

73.7

55.9

82.3

July

168

172

176

170

163

159

159

155

150

145

141

134

128

125

127

127

118

116

114

111

108

106

106

101

98

93

92

90

88

9090"

Per 

square 

mile

1.04

. 859

.824

. 769

.693

 391

 931

4. 85

2 65 1)79

1.17

1.73

Aug.

90

90

87

86

84

80

84

82

82

86

80

76

75

74

74

72

71

69

68

68

71

71

68

65

64

62

62

62

62

61

60

Sept

59

57

60

57

57

57

57

57

57

59

57

56

56

56

55

55

59

61

56

55

54

54

53

53

53

53

54

53

54

53

Runoff

Inches

1.20

. 96

.95

. 89

.72

.80

1.04

5. 36

5.41

3. 06

1.79

1.31

23.49

Acre-feet

3,050

2,430

2,410

2 25O

1^830

2,020

2,640

13,600

13,720

7,780

4,530

3,330

59,590

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 3, Dec. 17-19, Dec. 29 to Jan. 5, Feb. 27 to 

Mar. 3. No gage-height record Dee. 20-22, Jan. 6 to Feb. 11; discharge co.nputed on ba">is of weather 

records and records for Fall River near Squirrel and Teton River near Tetonia.
62 HENRYS FORK BASIN

Teton River near Tetonia, Idaho

Location^- Water-stage recorder, lat. 43°51', long. 111°15', in sec. 15, T. 6 N., R. 44 

E., it miles downstream from highway bridge, 4 miles downstream from Paeksaddle Creek, 

and 6 miles northwest of Tetonia.

Drainage area.- 460 square miles.

Records available.- October 1929, March 1930 to September 1932, May to September 1934, 

July to September 1935, May to September 1940, July 1941 to September 1947. Additional records collected by Water District 36, State of Idaho, October and November 1932, 

July to September 1936, July to September 1937.

Extremes.- Maximum discharge during year, 1,330 second-feet June 10 (gage height, 2.43 

feet); minimum daily, 150 second-feet Jan. 15.

1929-47: Maximum discharge observed, 1,900 second-feet June 28, 1945 (gage height, 

2.97 feet); minimum observed, 62 second-feet Jan. 16, 17, 1943.

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

wnich are poor. Many diversions from tributaries above station for irrigation.

Discharge, in second- feet, water year October 1946 to September 134?

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.

324

380

397

370

354

354

359

375

375

364

354

349

349

339

344

375

375

370

364

344

339

349

392

414

402

370

359

478

466

392

359

Nov.

344

339

414

392

375

360

345

330

h319

300

285

270

300

305

300

h296

295

295

430

440

430

*419

h344

400

380

365

350

440

460

h472

-

Dec.

420

360

340

360

400

460

h414

380

350

330

350

375

410

h443

350

230

245

275

310

285

h260

270

285

295

315

340

*314

h283

210

205

210

Jan.

215

220

225

h.230

240

240

240

240

240

235

h220

200

185

165

150

155

158

h!60

165

170

170

175

175

175

h!75

174

*173

174

175

175

175

Feb.

h!75

175

175

175

175

180

h!80

180

180

180

185

195

220

245

h270

360

3OO

270

255

245

240

h235

230

235

*238

245

250

250

«

..

-

Month

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

November . .......... r .......................

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

h220

210

210

205

205

200

200

h!97

210

240

225

215

220

230

h246

450

650

610

550

525

530

h516

490

400

340

S15

290

300

314

437

454

Apr.

349

370

375

359

319

301

296

279

274

266

266

279

270

266

266

246

246

238

234

234

238

246

238

234

230

230

234

250

270

279

Secondfoot-days

11,535

10,794

10,074

149,574

5,969

6,243

10,404

8,182

16,511

25,406

18,848

13,836

11,219

149,021

May

279

292

329

386

437

588

671

730

808

872

823

823

776

708

568

510

478

472

497

460

425

413

419

402

380

402

460

561

516

472

554

Maximum

478

472

460

872

240

360

650

375

872

1,300

730

588

484

1,300

June

686

708

847

800

693

664

629

671

1,090

1,300

1,200

972

815

730

671

678

746

888

888

1,020

1,180

963

839

776

709

716

872

1,040

847

769

-

Minimum

324

270

205

200

150

175

197

230

279

629

478

359

344

150

July

700

650

643

686

7O8

678

664

686

708

730

708

671

643

615

615

615

622

595

588

574

561

561

574

568

541

516

497

484

478

478

491

Aug.

497

535

516

510

497

484

478

478

466

503

588

510

472

448

437

443

419

408

402

414

425

431

425

408

402

392

375

375

375

364

359

Mean

372

360

325

410

193

233

336

273

533

8i7

608

446

374

408

Sept.

370

386

392

386

364

354

349

344

344

359

370

364

359

349

349

344

397

484

425

386

380

370

364

359

359

375

397

380

380

380

Runoff in 

acre-feet

22,880

21,410

19,980

296,700

11,840

12,380

20,640

16,230

32,750

50,390

37,380

27,440

22,250

295,600

* Winter discharge^measurement made on this day

h Computed from reading of auxiliary staff gage It miles above station.

Note.- No gage-height record Nov. 5 to Mar. 28 except weekly readings of auxiliary staff gage 

(stage-discharge relation affected by ice Dec. 21, Jan. 4 to Feb. 22); discharge computed on basis 

of available gage readings, 4 discharge measurements, weather records, and records fo" station near 

St. Anthony.
HENRYS PORK BASIN 63

Teton River1 near St. Anthony, Idaho

Location.- Water-stage recorder, lat. 43°56', long. 111°37', in sec. 15, T. 7 N., R. 41 

E., half a mile upstream from railroad bridge and 4 miles southeast of St. Anthony.

Drainage area.- 930 square miles.

Records available.- April 1903 to June 1909, April 1920 to September 1947.

Average discharge.- 20 years (1903-8, 1921-22, 1933-47), 751 second-feet.

Extremes.- Maximum discharge during year,2,680 second-feet May 9 (gage height, 5.21 feet); 

minimum, 266 second-feet Dec. 30 (gage height, 1.75 feet).

1903-9, 1920-47: Maximum discharge, 7,820 second-feet June 5, 1909 (gage .height, 

6.90 feet, site and datum then in use); minimum, 88 second-feet Mar. 12, 1906~(gage 

height, 1.00 foot, site and datum then in use).

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

record, which are fair. Flow affected by diversions from streams in Teton Basin, 20 

miles upstream, and by flow diverted from Henrys Fork through Cross Cut Cinal into Teton 

River (none diverted into river during 1947).

Discharge, in second-feet, water year October 1946 to September 1947

Day

i

2

3

4

5

6

7

R

9

10

11

12!

13

14

15

16

17

1R

19

20

21

22

23

24

25

27

28

29

30

31

Oct.

539

587

639

613

587

578

578

58Z

587

582

563

558

558

554

549

573

597

582

563

544

539

549

582

623

592

587

558

623

683

634

582

Nov.

563

539

498

526

558

554

549

539

539

530

521

483

471

526

516

521

507

503

516

602

613

597

573

661

628

558

544

592

634

639 ,

-

Dec.

650

578

554

516

535

582

672

597

544

512

494

507

526

549

694

535

417

444

444

471

448

417

426

430

440

A53

 489

444

374

304

324

Jan.

330

335

a345

a360

a375

a390

a390

390

390

390

390

365

345

325

310

320

330

350

360

375

390

405

405

405

405

405

390

390

*390

390

390

Month

Feb.

390

395

4OO

400

405

410

410

410

400

400

410

420

440

480

503

521

573

535

480

435

426

404

399

408

*422

422

430

391

-

_

-

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

Calendar year 1946 ......................

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

Water year 1946-47 ......................

Mar.

408

404

391

382

376

374

369

369

386

435

498

458

444

476

558

782

9O9

852

880

803

769

789

762

712

554

521

505

489

526

639

725

Apr.

597

582

597

582

539

507

498

480

466

462

462

476

480

489

512

512

512

516

516

526

558

558

535

516

516

521

568

666

782

816

-

Secondfoot-days

18,065

15,370

294,732

16,347

22,341

17,894

380,551

May

852

946

1,400

1,900

2,110

2,200

2,330

2,360

2,570

2,410

2,130

2,060

1,960

1,930

1,680

1,560

1,570

1,550

1,530

1,410

1,330

1,340

1,320

1,260

1,220

1,230

1,350

1,490

1,340

1,180

1,260

Maximum

683

694

2,270

816

873

719

2,600

June

1,600

1,680

1,760

1,750

1,530

1,440

1,420

1,470

2,080

2,600

2,490

2,040

1,690

1,600

1,540

1,530

1,570

1,680

1,680

1,880

2,080

1,700

1,470

1,360

1,320

1,340

1,550

1,730

1,460

1,280

-

Minimum

539

304

304

390

462

563

304

July

1,190

1,150

1,190

1,270

1,280

1,230

1,200

1,220

1,230

1,210

1,170

1,120

1,070

1,030

998

1,010

i.olo

983

969

954

917

909

902

895

866

816

796

769

756

750

776

Aug.

816

810

810

789

789

769

756

769

756

762

873

873

750

725

706

706

689

666

666

672

666

683

678

666

666

666

655

639

634

628

608

Mean

583

496

807

433

545

721

596

769

Sept.

597

608

613

613

592

582

563

563

563

573

587

592

587

573

563

568

578

661

719

650

613

602

592

587

578

582

608

608

582

597

-

Runoff in 

acre-feet

35,830

30,490

584,600

44,310

35,490

556,400

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records.

Note.- Stage-discharge relation affected by ice Dec. 31 to Jan. 2, Jan. 8 to Feb. 14.
HENRYS FORK BASIN 

Diversions from Teton River between St. Anthony gaging station and mouth, Idaho

Between St. Anthony gaging station and mouth 17 canals divert water from Teton River 

for irrigation. Records available for part of each irrigation season from 1919 to 1947. 

Discharge of canals computed from daily or biweekly staff-gage readings, or interpolated, 

and combined to show total diverted flow. Records good.

Discharge, in second-feet, water year October 1946 to September 1947

Day

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

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

Calendar year ......................

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

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

Mav

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

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

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

Mar. Apr.

Seoondfoot-days

_

22,841

31,571

21,750

13,503

-

May

336

342

369

400

440

474

534

612

679

687

687

693

693

710

726

752

782

813

834

839

857

882

914

941

1,012

1,096

1,143

1,041

881

860

812

Maximum

.

.

_

_

1,143

1,193

863

613

-

June

740

719

766

827

745

754

727

612

589

564

544

557

577

635

715

790

927

997

1,066

1,100

1,130

1,093

1,118

1,191

1,284

1,233

1,275

1,152

1,097

1,049

-

Minimum

336

544

787

248

-

July

1,040

1,043

1,037

1,030

1,037

1,101

1,100

1,151

1,179

1,193

1,164

1,115

1,126

1,084

1,065

1,007

1,046

997

1,017

1,032

1,035

1,009

976

968

969

930

901

795

806

787

831

Aug.

863

851

846

848

839

749

747

737

751

783

807

792

7O9

700

699

685

667

658

608

631

620

625

631

622

630

637

624

608

588

312

583

Mean

737

1,018

702

450

-

Sept.

551

560

586

605

597

613

567

567

568

585

595

579

575

517

520

515

513

531

485

326

262

259

259

259

259

253

253

248

248

248

Runoff in 

acre-feet

_

_

26,780

23U,600
HENRYS FORK BASIN 65

Teton Creek near Driggs, Idaho

Location.- Water-stage recorder, lat. 43°45'30", long. 110°58', 1^ miles upstream from 

Mill Creek, 1.6 miles west of Boy Scout camp, 4.2 miles east of Wyoming-Idaho State 

line, and 7j miles northeast of Driggs.

Drainage area.- 33.8 square miles.

Records available.- June 1946 to September 1947.

Extremes.- Maximum discharge during year, 788 second-feet June 19, 20 (gage height, 3.47 

reet); minimum not determined, occurred during period of no gage-height record.

1946-47: Maximum discharge, that of June 19, 20, 1947; minimum not determined, 

probably occurred during period of no gage-height record in winter.

Remarks.- Records good except those for Nov. 16 to Mar. 20, which are fair, and those for 

Mar.21 to Apr. 12, which are poor. No diversion or regulation above station.

Discharge, in second-feet, water year October 1946 to September

Day

1

2

3

4

6

7

a

11

12 

13 

14 

15

16 

17

19

21 

22 

23

25

oc

28 

29

30

Oct.

23

28 

28

24 

25 

24 

24 

25

25 

25

23

24 

25 

28

27

26 

25 

24

Nov.

23

22 

22

20 

19 

19 

19 

19

19

\ 18

'IDec.

(*)

. 13

} -

Jan.

11

10

Month

Febi

Marc

iiary

h

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

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

Water year 1946-47 ..........

Feb.

> 10

(*)

> 9.0

-

"

Secondfoot-days

814

583

457

_

323

267 

333

941

12,362

13,017

10,412

2,223

742

42,474

Mar.

/ 9.0

, , 10

12

I »

Maximum

37

23

_

_

_

-

94

624

728

576

142

32

728

Apr.

' 18

23 

23 

28

30 

31

31 

30

31

31 

30

30

32

36

74 

94 

92

-

May

101

178

353

484

523

530 

554

586

624

530

488 

422 

347 

284 

245

265 

338

365 

314

270

317 

350 

371

368 

419

498

558 

516 

401 

347

416

Minimum

23

_

_

_

_

-

_

101

248

132

32

20

-

June

453

416

410

365

317

314 

356

470

544

416

326 

252 

248 

314 

395

478 

558

554 

648

728

512 

436 

410

422

498

565

600 

422 

335

255

-

Mean

26.3

19.4

14.7

'_

10.4

9.54 

10.7

31.4

399

434

336

71.7

24.7

116

July

252

371

509

526

502

498 

568

540

576

484

460 

419 

383 

353 

329

353 

323

299 

314

290

284 

258 

212

205 

192

168

161 

161 

150 

132

140

Per 

square 

mile

0.778

.574

.435

_

.308

.282 

.317

.929

11.8

12.8

9.94

2.12

.731

3.43

Aug.

142

4?

30ia

100

95 

114

] OR

95

109

101 

79 

71 

64 

61

58

57

51

49

48

51 

51 

44

41 

38

36

35 

34 

34 

34

32

Sept.

30

29

32

30

29

28

26

25

27

25 

25 

23 

22 

22

20

28

22

21 

20 

20

20 

20

20

28 

27 

25 

25

Runoff

Inches

0.90

.64

.50

_

.36

.29 

.37

1.04

13 60

14.32

11.46

2.45

.82

46 75

Acre-feet

1,610

1,160

906

_

641

530

660

1,870

25,520

26,820

20,650

4,410

1,470

84,250

Winter discharge measurement made on this day. 

Note.- Fragmentary or no gage-height record Nov. 16 to Apr. 12 (stage-discharge relation affected 

by Ice on scattered days); discharge computed on basis of fragmentary gage-height record, 3 discharge measurements, weather records, and records for nearby streams. Ho gage-height record Sept. 29, 

30; discharge computed on basis of records for Teton River near Victor.
66 HENRYS FORK BASIN

Horseshoe Creek near Driggs, Idaho

Location.- Water-stage recorder, lat. 43°44', long. 111°15'30", in sec. 27, T. 5 N., R. 

44 E., at mouth of canyon, 90 feet upstream from bridge on old railroad grade, 4 miles 

upstream from mouth, and 1\ miles west of Driggs.

Drainage area.- 11.7 square miles.

Records available.- May 1946 to September 1947.

Extremes.- Maximum discharge during year, 60 second-feet June 9; maximum gage height, 

3.23 feet May 3; minimum discharge, 0.7 second-foot Nov. 12, but may have been less 

during winter period; minimum gage height observed, 0.96 foot Feb. 11.

1946-47: Maximum discharge, that of June 9, 1947; maximum gage height, that of 

May 3, 1947; minimum discharge, that of Nov 12, 1946; minimum gage height observed, 

that of Feb. 11, 1947.

Remarks.- Records fair May to August, others poor. No diversion or regulation above

Discharge, in second-feet, water year October 1946 to September 1947

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

25

26

27

28

29

30

31

Oct.

5.5

6.8

5.7

5.7

5.5

5.4

5.5

5.7

5.2

5.0

4.8

4.9

4.6

4.6

5.0

4.8

4.3

4.0

3.9

3.9

3.9

4.2

5.7

4.6

4.4

4.2

4.3

4.4

3.9

3.6

3.5

Nov.

b3.4

b3.4

1)3.6

b3.6

b3.5

b3.5

b3.5

b3.4

3.0

3.1

2.8

2.7

b3.2_

b3.0

b2.9

2.8

2.8

2.8

3.9

4.2

3.9

3.6

b3,8

b3.7

b3.6

3.6

3.4

3.5

3.6

3.7

~

Dec. Jan.

b3.4 b2.4

3.1 2.4

b3.0 2.4

3.2 24

 7 Q K

5.8

4.8

4.0

b3.8 1

b3.6

3.4

3.2

3.2

b5.0

b5.0

b3.6

b3.8

*b4.0

b4.2

b4.0

b3.0

b3.2

3.5

3.1

3.4

b3.6

1)3.4

2.6

b2.4

b2.4

b2.4

> 2.4

Month

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

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

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

Calendar year .........

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

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

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

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

Mflv nay ...........................

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

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

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

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

Water year 1946-47 ..........

Feb.

> 2.3

h2.3

1 ,3

1

 2.2

-

-

-

Secondfoot-days

147.5

101.5

111.0

74.4

63.1

105.4

400

1,222

870

366.6

157.4

112.6

3,731.5

Mar.

.

> 2.2

*

3.5

*h4.6

5.0

5.0

5.0

5.5

6.0

5.0

4.5

4.0

3.5

3.5

3.4

b3.3

4.9

5.7

Maximum

6.8

4.2

5.8

_

6.0

32

52

48

19

7.4

4.4

52

Apr.

b5.0

4.9

5.7

5.7

5.7

5.5

5.2

1)5.4

5.5

5.5

5.5

5.8

6.6

10

16

16

16

16

17

21

20

18

16

17

16

18

22

26

31

32

-

May

32

40

50

52

52

52

52

52

51

48

47

45

45

44

a

40

39

38

36

35

34

33

31

30

30

29

30

29

27

27

31

Minimum

3.5

2.7

2.4

_

^

_

4.9

27

20

6.6

4.0

3.1

-

June .

30

30

31

29

27

27

25

27

46

48

42

38

35

33

31

30

30

29

27

27

26

25

24

23

22

22

24

21

21

20

-

Mean

4.76

3.38

3.58

2.40

2.25

3.4a

13.3

39.4

29.0

11.8

5.08

3.75

10.2

July

19

18

17

17

16

16

16

15

15

15

14

13

13

12

12

12

11

11

10

9.9

9.5

9.3

8.6

8.3

7.8

7.4

6.9

6.8

6.6

6.6

6.9

Per 

square 

mile

0.407

.289

.306

.205

.192

.291

1.14

3.37

2.48

1.01

434

!321

.872

Aug.

.9

.4

.8

.6

.0

.8

.8

.7

.2

.5

.0

.2

.0

.0

.8

.4

.3

.3

.3

.3

.4

.4

.3

.3

.2

.3

.2

.0

.2

4.2

4.6

Sept.

4.0

4.0

4.3

4.0

4.3

4.0

4.4

4.0

4.0

3.7

3.9

3.9

3.7

3.9

3.6

3.5

3.9

4.4

3.7

3.7

3.6

3.5

3.4

3.1

3.2

3.1

3.6

3.2

3.6

3.4

Runoff

Inches Acre-feet

0.47 293

.32 201

.35 220

. 24 148

20 125

.34 209

1. 27 793

6.88 2,420

2 77 1 730

l!l7 *727

.50 312

.36 223

11.87 7,400

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. 9 to Feb. 10, Feb. 12 to Mar. 16, Map. 18-27 (staje-discharge 

relation affected by ice during most of periods); discharge computed on basis of weather records 

and records for other stations in Teton River Basin.
HENRYS FORK BASIN °' 

Packsaddle Creek near Tetonia, Idaho

Location.- Water-stage recorder, lat. 43°45'30", long. 111 0 18'30", in sec. 18, T. 5. N., 

K. 44 E., 0.9 mile upstream from North Fork and 8j miles southwest of Tetonia.

Drainage area.- 5.7 square miles.

Records available.- June 1946 to September 1947.

Extremes.- Maximum discharge during year, 27 second-feet May 3, 4; maximum gage height, 

1.78 feet Jan. 27 (ice jam); minimum discharge, 0.1 second-foot Jan. 22 (gage height, 

0/36 foot), ice jam upstrear..

1946-47: Maximum discharge, that of May 3, 4, 1947; maximum gage height, that of 

Jan. 27, 1947; minimum discharge, that of Jan. 22, 1947.

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

and those below 1.0 second-foot, which are poor. No diversion or regulation above 

station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

S

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.

.0

.6

.6

.4

.3

.2

.Z

1.2

1.2

1.2

1.0

1.0

V

1

> al.o 

'

a. 8

1 al.l

.9

1.0

.9

.8

.7

.7

Nov.

bO.7

b.6

b.5

b.6

.8

.8

.7

.7

.6

.7

.6

.7

.8

.5

.5

.5

.5

.5

.6

b.6

b.6

.7

.R

.5

.5

.5

.5

.5

.5

.5

-

Dec.

0.5

.5

.5

.5

.7

.9

.7

b.8

.9

(*)

b.9

.9

.8

.8

.8

Jan.

0.6

.5

.5

.4

.4

.4

.3

.3

.2

.2

.4

.2

b.3

.2. ?

.3

b.3

Month

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

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

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

Calendar year ....... .

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

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

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

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

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

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

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

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

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

Water year 1946-47 ..........

Feb.

' bO.3

*.'

-

-

-

Secondfoot-days

32.0

17.9

23.9

9.9

9.2

23.0

102.9

628

370.6

97.9

36.5

15.7

1,367.5

Mar.

0.3

.2

.2

.3

.4

.4

.4

.4

.3

.3

.4

.4

.4

.4

.5

.5

.7

.9

.9

*.9

1.2

1.4

bl.4

bl.3

1.2

1.'2 .9

1.2

1.2

1.4

1.4

Maximum

1.6

.8

.6

1.4

10

2421 '

5.4

2.0

.8

24

Apr.

1.4

1.4

1.3

1.2

bl.2

1.0

1.0

1.0

bl.O

bl.O

1.2

1.2

1.4

2.2

2.6

b3.0

3.3

3.5

4.1

5.2

5.0

4.4

4.2

4.4

4.6

5.0

6.9

9.2

10

10

May

12

15

21

23

23

23

23

24

23

22

22

22

23

22

21

21

21

20

20

20

20

20

19

19

19

19

20

19

18

17

17

Minimum

0.5

.5

_

.2

1.0

12

5.6

1.9

.6

.4

.2

June

16

16

16

14

14

13

12

13

20

21

20

18

17

15

14

13

13

12

11

10

9.5

8.8

8.1

7.4

6.9

6.7

7.4

6.3

5.9

5.6

Mean

1.03

.60

.77

.32

.33

.74

3 43

20! 3

12.4

3.16

1.18

.52

3.75

July

5.4

5.0

4.8

4.6

4.4

4.2

4.1

4.1

3.9

3.7

3.5

3.3

3.2

3.0

3.0

3.0

2.8

2.8

2.6

2.8

2.4

2.6

2.2

2.4

2.2

2.0

2.0

2^0

1.9

2.0

2.0

Per 

square 

mile

0.181

.105

.135

.056

.058

.130

.602

3.56

2.18

554

.207

.091

.658

Aug.

2

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

.0

.9

.6

.6

.8

.6

.6

.8

.6

.0

.4

.2

.2

.2

.0

.0

.0

.9

.9

.9

.9

.0

.9

.8

.7

.7

.7

.7

.7

.6

.6

Sept.

0.5

.6

.5

.5

.5

.5

.5

.5

.5

.6

.6

-.5

.5

.4

.4

.4

.6

.8

.5

.5

.5

.5

.5

.5

.4

.6

.8

.5

.5

.5

Runoff

Inches

0.21

.12

.16

.06

.06

.15

.67

4.10

2.42

.64

.24

.10

8.93

Acre-feet

65

36

47

20

18

46

204

1 '735 250

194

72

31

2,720

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for other 

stations in Teton River Basin.

b Stage-discharge relation affected by ice.
68 HENRYS FORK BASIN

Spring Creek near Tetonia, Idaho

Location.- Water-stage recorder, lat. 43°50'30", long. 111°07', in sec. 14, T. 6 N., R. 

4b K., 10 feet downstream from source of creek at spring and 3 miles nortl«ast of 

Tetonia.

Records available.- June 1946 to September 1947.

Extremes.- Maximum discharge recorded during year, 9.5 second-feet Mar. 19 (gage height, 

0.77 root), but may have been more during period of no gage-height record Mar. 16-18; 

minimum observed, 2.4 second-feet Feb. 23 (gage height, 0.45 foot), but may have been 

less during period of no gage-height record.

1946-47: Maximum discharge recorded, that of Mar. 19, 1947; minimum observed, that 

of Feb. 23, 1947.

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

One diversion above gage for irrigation. Approximately 150 acre-feet were diverted 

during year (3 in May, 15 in June, 15 in July, 65 in August, and 52 in September).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.5

3.5

3.5

3.3

3.5

3.5

3.5

3.3

3.3

3.3

3.5

3.5

3.6

3.6

3.6

3.8

3.8

3.8

3.6

3.5

3.5

Nov.

3.5

3.5

3.3

3.3

3.3

3.3

3.2

3.2

3 2

3.0

3.0

2.8

2.8

2.8

2.8

3.0

2.8

2.8

2.8

3.0

3.0

2.8

2.8

2.8

2.8

2.8

3.0

3.0

3.0

3.2

-

Dec.

3.3

3.2

3.2

3.3

3.5

3.5

3.5

3.5

3.3

3.3

3.3

3.5

3.5

3.5

3.6

3.6

3.6

3.5

3.3

3.3

3.2

3.2

3.2

3.3

3.3

3.4

3.5

3.5

3.5

3.5

3.5

Jan.

3.5

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.5

3.5

3.5

3.4

3.4

3.3

3.3

3.2

3.2

3.2

3.2

3.2

3.3

3.3

3.4

3.4

3.5

3.5

3.5

3.5

3.4

3.3

3.2

Feb.

3.2

3.2

3.2

3.2

3.1

3.1

3.0

3.0

2.9

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.7

2.6

2.6

2.5

2.4

2-4

2.4

2.4

2.4

2.4

2.5

_

-

Month

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

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

December. ........................-.........'.

Calendar year ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

2.5

2.5

2.5

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

7.0

9.0

8.5

7.8

6.5

5.9

5.2

4.9

4.7

4.2

3.8

3.6

3.5

3.2

3.2

3.2

Apr.

3.2

3.2

3.2

3.2

3.3

3.5

3.5

3.5

3.5

3.5

3.3

3.3

3.3

3.6

3.6

3.8

3.8

3.8

4.0

4.2

4.2

4.2

4.2

4.0

4.0

4.0

3.8

3.8

3.8

4.0

Seoondfoot-days

110.0

90.6

105.4

.

105.9

77.6

122 . 9

nois

202.7

232.8

216.5

121.0

95.8

1~,591.5

May

4.2

4.2

4.2

4.2

4.4

4.7

4.7

4.9

5.2

5.9

6.5

6.5

6.7

6.7

7.0

7.2

7.5

7.5

7.8

7.8

7.8

7.8

7.2

7.2

7.5

7.8

7.8

7.8

7.8

8.1

8.1

Maximum

3.8

3.5

3.6

.

3.6

3 2

9^0

4.2

8.1

8 . 1

8.1

5.7

3.5

9.0

June

7.8

7.8

7.8

7.5

7.2

7.5

7.5

7.8

7.8

7.8

7.8

7.5

7.5

7.8

7.8

7.8

7.8

7.8

7.8

7.8

2.5

7.5

7. ft

7.8

8.1

8.1

8.1

8.1

8.1

7.8

-

Minimum

3.3

2.8

3.2

.

3.2

2.4

2.5

3 2

4.2

7.2

5 . 9

3 2

3.0

2.4

July

7.5

7.5

7.5

7.8 ,

7.8

8.1

7.8

7.8

7.5

7.5

7.2

7.0

7.0

7.0

7.0

7.0

6.7

6.7

6.7

6.7

6.5

6.7

6.7

6.5

6.5

6.5

6.5

6.5

6.2

6.2

5.9

Aug.

5.7

5.7

5.2

4.7

4.7

4.7

4.4

4.2

4.2

4.2

*.?.

*.U

4.0

3,6

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.3

3.3

3.3

3.3

3.3

3.2

3.3

3.3

3.2

Mear

3.55

3.02

3.40

.

3.42

2.77

3.96

3.68

6.54

7 . 76

6.98

3 9O

3!l9

4.36

Sept.

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.0

3.0

3.0

3.0

3.0

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3,2

3.2

3.2

3.2

3.2

3.3

3.5

3.3

3.3

3.3

3.3

-

Runoff in 

acre-feet

218

180

209

.

210

154

244

219

402

462

429

240

190

3,160

Note.- No gage-height record for most of period Deo. 22 to Mar. 18; discharge Interpolated, or con

puted on basis of staff-gage readings on Dec. 28, Jan. 5, 18, 26, Feb. 2, 11, 16, 23, Mar. 9", 15 and 

records for Teton River near Tetonia.
BLACKFOOT RIVER BASIN 69

Blackfoot River near Blackfoot, Idaho

Location.- Water-stage recorder, lat. 43°08', long. 112°28', at east quarter corner of 

sec. 28, T. 3 S., R. 34 E., 2 miles upstream from mouth and 9 miles southwest of 

Blackfoot. Altitude of gage^ 4,420 feet (river-profile survey).

Drainage area^- 1,100 square miles.

Records available.- July 1913 to September 1947.

Extremes.- Maximum discharge during year, 562 second-feet Apr. 22 (gage height, 5.55 feet); 

minimum, 1 second-foot July 4; minimum gage height, 1.02 feet Mav 26.

1913-47: Maximum discharge, 868 second-feet May 21, 1921; no flow on many days.

Remarks.- Records good except those for Jan. 1 to Feb. 24, which are poor. Flow regulated by Blackfoot Marsh Reservoir (capacity, 413,000 acre-feet). Many diversions 

above station for irrigation. Most of flow during nonirrigation season and part of 

that during irrigation season is supplied by waste from Snake River tanals.

Cooperation.- Gage-height record furnished by Office of Indian Affairs.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

53

106

176

236

278

261

252

271

332

380

374

342

291

234

205

205

201

198

211

225

213

201

187

172

142

102

96

133

a!40

a!50

a!60

Nov.

.

> a2OO

1

'

\ a250

1

/

260

280

300

299

190

442

367

356

373

378

385

413

414

411

414

400

416

413

366

352

-

Dec.

352

349

345

339

339

350

363

371

380

364

332

308

298

282

289

235

213

250

245

244

245

278

350

234

304

277

283

224

197

195

190

Jan.

190

185

185

180

180

*180

180

180

hlBO

hlSO

> 160

1

*

> 140

I

J

k

1

> 120

I

>

Feb.

110

110

*108

115

125

130

125

125

120

120

115

115

120

130

135

145

155

*168

h!75

h!75

175

175

170

168

166

148

102

140

_

_

-

Month

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

Calendar year 1946 ......................

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

Mav

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

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

Water year 1946-47 ......................

Mar.

130

136

118

123

140

140

129

123

129

136

208

261

244

232

251

278

318

332

304

324

256

311

300

316

286

181

L91

170

159

162

183

Apr.

208

227

231

224

220

166

156

136

127

120

131

163

150

144

153

176

149

262

274

247

261

538

501

476

454

418

395

342

261

172

Seoondfoot-days

9,025

85,144

2,186

57,723

May

273

137

50

31

30

32

7

3

6

58

194

138

88

38

43

35

39

53

57

55

35

29

20

12

7

4

5

43

23

24

28

Maximum

380

590

249

538

June

30

57

77

54

64

129

159

84

114

211

414

363

253

134

53

39

29

217

267

158

66

88

90

94

49

31

17

26

40

36

Minimum

190

9

3

2

July

21

5

2

2

5

26

16

11

27

42

43

44

33

16

8

15

24

25

24

40

53

56

50

60

57

48

41

21

18

10

Aug.

12

66

74

104

207

159

72

34

34

72

221

418

299

57

46

43

25

11

7

8_

7

12

25

26

26

18

12

9

6

4

4

Mean

291

233

72.9

158

Sept.

9

5

3

3

4

19

12

12

14

19

32

33

29

24

40

40

52

165

249

236

194

127

86

82

73

92

153

137

131

111

Runoff in 

acre- feet

17,900

168,900

4,340

114,500

* Winter discharge measurement made on this day. 

a No gage-height record; discharge estimated.

h Computed from reading of auxiliary staff gage 9 miles upstream.

Note.- Discharge for Jan. 1 to Feb. 24 computed on basis of 3 discharge measurements and ocoaslonal readings of auxiliary gage (stage-discharge relation affected by Ice during much of period).
70 PORTNEUF RIVER BASIN

Portneuf River at Topaz, Idaho

Location.- Staff gage, lat. 42°38', long. 1120 06', in sec. 23, T. 9 S., R. 37 E., at 

Oregon Short Line Railroad bridge, a quarter of a mile west of Topaz, l£ miles upstream from diversion dam of Portneuf-Marsh Valley Canal Co., and 6 miles southeast 

of McCammon.

Records available.- January 1913 to September 1915, July 1919 to September 1947 

Average discharge.- 28 years-(1913-14, 1919-22, 1923-47), 191 second-feet.

Extremes.- Maximum discharge observed during year/ 307 second-feet May 12 (ga?e height, 

1.98 feet); minimum observed, 130 second-feet Oct. 3; minimum gage height observed, 

1.10 feet Jan. 3-6, 15.

1913-15, 1919-47: Maximum discharge observed, 902 second-feet Apr. 3, 1913 (gage 

height, 6.1 feet, site and datum then in use); minimum observed, 65 second-feet Oct. 

9, 1934 (gage height, 0.81 foot).

Remarks.- Records good except those for periods of rapidly changing stage, which are 

rair. Gage read once dally. Flow regulated by Portneuf-Marsh Valley Canal Co.'s 

reservoir near Chesterfield. Many ranch diversions above~~Station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2b

26 at

28

29

30

31

Oct.

140

140

130

149

155

155

160

164

162

162

a!63

164

166

166

168

168

174

174

174

174

174

178

182

182

182

178

180

198

2O6

198

194

Nov.

196

196

196

188

184

180

180

180

176

176

176

172

176

186

174

174

174

174

174

174

174

178

194

198

202

206

210

200

196.

192

-

Dec.

188

188

184

184

182

200

200

204

200

196

192

188

192

204

200

178

170

174

174

174

174

174

172

172

172

172

172

172

164

164

157

Jan.

151

151

140

140

140'

140

143

147

149

153

153

153

149

145

138

142

145

147

147

147

147

147

147

145

147

149

149

147

149

149

147

Feb.

151

149

149

149

149

155

155

155

151

151

153

153

155

245

237

220

216

190

186

174

170

166

174

176

176

172

168

164

_

-

Month

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

Calendar year 1946 ......................

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

Van

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

Water year 1946-47 ......................

Mar.

168

170

170

170

170

172

172

172

176

200

220 220

204

196

200

204

204

196

192

192

182

182

190

190

190

194

194

194

190

190

190

Apr.

188

192

192

196

200

200

196

192

188

186

184

182

178

176

176

176

176

178

186

210

223

223

223

210

206

216

225

229

233

245

Seccndfcct-days

5,637

89,714

4,641

68,197

May

253

253 2S7-

267

275

271

271

279

290

294

298

307

288

284.

280

273

269

245

214

223

216

214

198

136

184

182

180

180

178

170

166

Maximum

204

661

245

239

216

182

307

June

174

n&

178

206

198

204

204

208

212

220

220

216

216

216

212

192

182

182

170

170

174

174

174

174

174

178

180

198

204

220

-

Minimum

157

130

138

190

182

138

130

July

225

231

233

237

239

239

229

212

214

214

212

E12

202

198

204

208

206

202

202

200

200

200

200

198

198

198

190

192

202

206

202

Aug.

198

198

198

198

206

194

190

182

200

204

212

216

216

212

208

204

200

200

196

192

192

190

194

190

188

194

194

198

198

198

194

Mean

182

2"5

189

1*5

187

Sept.

182

178

178

147

142

143

159

166

166

166

166

166

162

155

155

147

147

159

166

155

155

147

143

143

143

138

140

142

142

143

Runoff in 

ao re-feet

11,180

177,900

9,210

135, SCO

a No gage-nelght record; aiscnarge interpolated.
PORTNEUP RIVER BASIN 71

Portneuf River at Pocatello, Idaho

Location.- Water-stage recorder, lat. 42°52', long. "112°28', in sec. 27, T. 6 S., R. 34

 E., at highway bridge at foot of Carson Street, in west end of Pocatello.

Records available.- August 1911 to September 1947. May 1897 to October 1899 at site 

1 mile upstream.

Average discharge.- 34 years (1912-16, 1917-47), 253 second-feet.

Extremes.- Maximum discharge during year, 554 second-feet ^eb. 14 (gage height, 5.S7*

 feet); minimum, 7 second-feet (regulated) June 3 (gage height, 1.60 feeV).

1897-99, 1911-47: Maximum discharge, more than 2,000 second-feet sometime during 

period May 13 to June 14, 1917; minimum, 5 second-feet July 31, 1942, f:-om rating 

curve extended below 40 second-feet.

Remarks.- Records good except those for period of ice effect, which are poor. Many

 diversions above station for irrigation. Flow regulated by storage reservoir near 

Chesterfield.

Discharge, in second- feet, water year October 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

125

142

151

166

172

188

204

220

226

224

262

291

295

304

309

309

315

327

333

326

317

318

320

331

327

326

329

377

416

408

396

Nov.

373

354

337

333

333

333

337

340

339

333

326

i26

326

331

342

342

329

327

335

340

356

354

360

414

412

380

380

388

380

377

-

Dec.

373

367

365

361

365

38£

 406

420

418

402

388

386

398

112

418

406

375

340

339

342

346

348

352

354

350

352

363

369

342

320

282

Jan.

306

304

300

300

300

300

300

310

320

325

330

325

320

315

290

260

300

310

310

305

300

300

300

305

320

350

380

340

324

315

 291

Feb.

293

335

327

322

335

356

360

346

333

329

333

346

384

539

544

520

506

483

444

414

392

384

382

398

390

375

360

354

_

-

-

Month

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

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

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

Calendar year 1946 ......................

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

February

yarch. .....................................

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

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

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

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

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

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

Water year 1946-47 ......................

liar.

344

348

356

360

365

356

352

352

358

375

491

489

440

436

450

470

468

462

454

442

426

418

416

422

418

402

392

3fU

378

375

378

Apr.

380

369

369

400

416

416

408

398

386

375

365

360

354

350

354

363

373

380

386

390

394

412

416

404

394

390

384

384

394

404

-

Seoondfoot-days

8 , 754

10,537

11,441

126,507

9 1 655

10,884

12,577

11,568

6, 839

2 524

1 258

2*333

3,033

91,403

May

380

352

354

363

363

358

337

304

277

263

268

309

335

315

313

288

248

223

183

158

134

119

109

97

71

72

60

54

44

47

41

Maximum

416

414

420

1,020

380

544

491

416

172

93

158

544

June

44

44

37

34

39

44

71

75

86

111

140

170

172

162

146

120

115

116

106

98

88

84

74

67

56

41

35

45

53

51

-

Minimum

125

326

282

73

260

293

344

350

41

34

15

42

59

15

July Aug.

55 50

62 53

51 47

44 42

42 50

26 57

20 58

15 69

27 71

31

29

28

33

38

40

36

31

31

38

41

46

49

50

53

53

50

49

46

48

49

47

67

84

88

87

80

78

77

84

84

83

86

86

7,9

82

83

88

86

83

82

87

89

93

Hear

28?

351

36}

347

311

389

406

221

84 . 1

40.6

75.3

101

250

Sept.

100

101

101

80

75

74

72

71

72

68

68

66

65

65

60

59

72

91

129

139

142

122

123

139

139

142

145

144

151

158

-

Runoff in 

acre-feet

17,360

20,900

22,690

250,900

19,150 

21,590

24,950

22,940

13,560

5,010

2,500 

4,630

6,020

181,300

Winter discharge measurement made on this clay 

Kote.- Stage-discharge relation affected by ice Jan. 3-28.
72 PORTNEUF RIVER BASIN

Birch Creek near Downey, Idaho

Location,- Staff gage and wooden control, lat, 42°21', long. 112°15", in SE£ S3c. 28, 

T. 12 S. , R. 36 E., just downstream from point where flow that is diverted through 

Malad power plant re-enters stream, 8.6 miles southwest of Downey and 10 miles upstream from confluence with Marsh Creek.

Records available.- September 1937 to September 1947. October 1911 to August 1914 at 

site 1-5- miles upstream.

Average discharge.- 11 years (1911-12, 1937-47), 9.27 second-feet.

Extremes.- Maximum discharge observed during year, 20 second-feet May 6, 13 (gage height, 

TTSITTeet); minimum observed, 6.2 second-feet Mar. 7-14.

1911-14, 1937-47: Maximum discharge observed, 95 second-feet July 15, 1938, by 

velocity-area method on basis of floodmark at measuring section; minimum observed, 

3.4 second-feet Dec. 24-27, 1913.

Remarks.- Records fair. Gage read twice daily. Malad power plant, which has a small 

reservoir abo-'e station, may cause slight diurnal fluctuations. Water is diverted 

from Birch Creek half a mile below station and carried by transmountain caral to 

Devil Creek in Bear River Basin.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

6

11

16

19

21

26

Dot.

8.7

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

9.0

8.2

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

Nov.

8.5

8.5

8.5

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.5

8.2

7.9

7.9

8.2

9.0

8.5

8.5

8.5

8.5

8.5

8.5

8.5

-

Dec.

8.5

8.5

8.5

8.5

8.5

9.0

8.5

8.5

8.2

8.5

8.5

8.7

8.5

8.7

8.5

8.5

7.9

7.9 

7.9

7.9

8.2

8.5

8.5

8.5

8.5

8.5

8.2

7.9

7.7

7.7

7.7

Jan.

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.5

.5

.5

.5

.5 

.5

.5

.5

.5

.5

.5

.3

.1

.1

.1

.1

.1

.1

Feb.

7.1

7.1

7.1

7.1

7.1

7.1

7.1

7.1

7.1

7.1

7.1

7.1

7.1

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.6

6.6

-

-

-

Month

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

Calendar year 1946 ......................

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

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

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

Water year 1946-47 ......................

Mar.

6.6

6.6

6.6

6.6

6.6

6.6

6.2

6.2

6.2

6.2

6.6

6.2

6.2

6.4

6.6

7.7

7.9

7.9 

7.9

7.9

7.9

7.9

7.5

7.5

7.5

7.3

7.7

7.5

7.7

7.7

7.7

Apr.

7.5

7.7

7.9

7.9

7.5

7.7

8.2

8.5

8.5

8.5

8.5

8.5

8.5

9.3

9.6

10

10

10 

10

10

10

10

11

10

10

11

12

12

12

12

-

Secondfoot-days

258.1

3,656.7

232 5

259 5

235.4

3,251.2

May

13

14

14

14

17

18

17

17

17

17

17

19

19

19

19

18

17

17 

16

16

16

15

14

13

13

12

12

12

12

12

Maximum

9.0

26

8.5

19

June

12

12

12

12

12

12

12

12

12

12

14

12

12

12

12

12

11

11 

11

11

11

10

10

9.9

9.9

9.9

9.9

9.9

9.9

9.9

Minimum

8

7.7

7.3

7^3

6.2

July

9.9

9.3

9.3

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

8.7

8.7

8.7

8.7

8-. 7

8.5

8.2

7.9

.7

.5

.3

Aug.

7.5

7.3

7.3

7.5

7.7

7.5

7.5

7.5

7.7

7.7

7.7

7.3

7.5

7.7

Mean

8.33

10.0

7.85

8.91

Sept.

7.7

7.7

7.3

7.7

.7

.5

.9

.9

Runoff in 

acre-feet

524

512

7,250

467

6,450
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON PALLS CFEEK 73

Raft River at Peterson Ranch, near Bridge, Idaho

Location.- Water-stage recorder, lat. 113°27', long. 42°04', in see. 5, T. ]6 S., R. 26 E. 

100feet upstream from One Mile Creek, 400 feet downstream from road bridge, 1\ miles 

southwest of Bridge, and 16 miles south of Malta.

Records available.- September 1946 to September 1947.

Extremes.- Maximum discharge during period September 1946 to September 1947, 72 secondTeeT~Feb. 14 (gage height, 2.01 feet); minimum, 2.4 second-feet Jan. 12 (gage height, 

1.04 feet), caused by ice jam upstream.

Remarks.- Records good. Diversions above station for irrigation.

Discharge, in second-feet, 1946-47

1946

Day

Sept. 19 

20 

21 

22

Discharge

9.1 

9.1 

9.1 

9.1

Day

Sept. 23 

24 

25 

26

Discharge

9.1 

9.1 

9.5 

9.5

Day

Sept. 27 

28 

29 

30

Discharge

9.1 

9.1 

9.1 

9.1

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

16

23

14

12

11

12

12

12

13

12

12

12

12

13

12

13

16

17

16

15

14

14

15

16

16

15

16

18

19

19

18

Nov.

19

17

16

14

17

20

21

20

20

17

17

17

17

23

23

20

20

20

20

21

19

20

23

23

20

21

20

23

23

22

-

Dec.

22

22

22

22

22

22

23

23

22

20

21

22

21

21

20

20

15

12

13

16

17

17

18

17

19

20

22

17

15

13

14

Jan.

13

13

13

13

13

14

13

13

14

14

16

14

15

16

13

13

15

14

16

16

14

15

15

16

17

18

17

17

17

16

16

Feb.

15

17

19

19

20

20

20

18

17

19

19

19

23

39

32

26

24

23

23

22

21

22

22

22

23

20

19

16

_

-

-

Mar.

15

18

19

17

19

19

19

19

19

19

19

18

16

17

17

20

22

20

19

19

20

20

17

19

18

16

15

14

14

16

16

Apr.

21

21

24

28

25

23

23

20

20

20

21

21

20

20

20

19

17

17

16

16

19

19

18

17

17

16

16

16

16

16

-

May

14

14

14

13

12

11

11

11

12

12

14

16

15

18

19

16

14

13

12

12

11

11

11

11

10

10

10

10

9.9

9.9

9.5

June

9.9

13

26

16

14

16

14

17

21

16

19

16

14

12

11

11

13

13

11

10

10

11

10

9.5

9.5

9.5

9.1

9.5

9.1

8.4

-

July

8.0

6.4

6.6

6.6

6.6

6.6

6.4

6.4

6.4

6.4

6.4

6.4

5.8

5.8

6.1

6.4

6.6

6.6

6.6

7,0

7.0

7.3

7.3

7.3

7.0

7'.0

6.6

6.6

6.6

6.6

6.4

Aug.

5.5

6.4

6.6

7.0

8.0

7.3

7.0

7.0

7.0

7.0

6.6

6.4

6.4

6.4

6.6

6.6

5.8

6.1

6.1

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.1

6.1

6.4

Sept.

6.4

6.6

6.6

6.6

6.6

6.4

6.4

6.6

7.3

7.0

7.3

7.3

7.3

7.0

7.3

7.6

8.4

12

9.5

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.3

8.3

Monthly discharge, In second-feet, 1946-47

Month

September 19-30, 1946. .....................

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

Calendar year ......................

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

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

Water year 1946 47 ......................

Seccndfoot-days

110.0

455

590

-

459

235.1

5,250.7

Maximum

9.5

23

-

39

12

39

Minimum

9.1

12

_

9 5

6.4

5.5

Mean

9.17

19.0

_

12 5

7.84

14.4

Runoff in 

acre-feet

218

1,170

_

466

10,410

881401 O - 50 - 6
74 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK

Clear Creek near Naf, Idaho

Location.- Water-stage recorder, lat. 41°58'15", long. 113°17'15", in SW&3W£ s<?c. 1, T. 

14 N., R. 13 W. Salt Lake meridian, 2 miles south of Utah-Idaho State line, 3 miles 

south of Naf post'office, and 20 miles upstream from Raft River.

Drainage area.- 19 square miles.

Records available.- January 1910 to June 1911 (fragmentary), June to December 1912 (gage 

heights only), November 1944 to September 1947.

Extremes.- Maximum discharge during year, 80 second-feet May 7 (gage height, 2.14 feet); 

minimum, 0.4 second-foot Sept. 14, caused by irrigation diversion.

1910-11, 1944-47: Maximum discharge observed, 180 second-feet May 13, 1910; minimum observed, 0.3 second-foot July 21, 1910, Aug. 5, Sept. 14, 1946.

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

above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.2

3.2

2.2

1.8

1.6

1.6

1.4

1.4

1.3

1.3

1.0

1.1

1.1

1.1

1.3

1.6

2.4

2.2

1.8

1.8

2.0

2.2

2.6

2.0

2.0

1.8

2.4

2.6

2.6

2.0

2.0

Nov.

 1.8

bl.7

bl.7

bl.8

2.0

1.8

1.8

1.8

1.6

bl.4

bl.5

bl.5

1.6

2.2

1.8

bl.7

1.6

1.6

1.8

b2.0

bl.8

2.0

2.9

2.6

2.6

2.2

2.4

2.2

2.2

Z.Z

-

Dec.

1.8

1.8

1.6

1.8

2.0

*2.6

2.2

2.0

1.8

1.6

1.8

1.6

1.6

1.6

1.6

bl.5

bl.3

bl.2

bl.3

bl.4

1.4

1.4

1.3

1.3

1.3

1.4

1.4

bl.3

bl.l

bl.l

bl.l

Jan.

(*)

, bl.4

Feb.

2.2

2.2

2.2

2.2

2.0

bl.9

bl.9

2.0

2.0

2.0

1.8

bl.6

bl.6

bl.7

-

_

-

Month

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

Calendar year 1946 ...................

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

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

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

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

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

Water year 1946-47 ......................

Mar.

b2.0

3.7

3.4

3.2

3.0

*2.9

2.4

1.8

1.6

2.0

1.8

1.8

1.8

1.8

2.0

2.2

2.6

2.9

3.2

3.2

3.4

3.7

4.3

3.7

3.4

2.9

2.9

3.2

3.2

3.7-

3.7

Apr.

3.4

3.4

4.0

3.4

3.2

3.4

3.4

3.2

3.2

3.2

3.4

3.4

3.7

4.0

5.4

6.5

7.3

7.3

6.S

7.3

8.8

8.8

7.8

7.3

6.9

6.9

6.9

8.2

10

12

Secondroot-days

57.6

57.8

48.2

3,129.9

51.1

87.4

1 359

52.7

3,296.7

May

15-

22

36

52

61

55

70

70

67

52

43

34

33

33

32

34

36

38

41

45

46

48

45

41

41

46

53

50

42

40

38

Maximum

3.2

2.9

2.6

60

4.3

4.6

70

June

40

41

41

38

37

35

34

41

40

37

37 '36

35

37

40

38

41

37

36

35

34

33

29

27

25

25

26

24

22

20

Minimum

1.0

1.4

1.1

.6

1.6

3.2

.6

.6

July

18

18

18

17

16

15

14

13

12

9.8

6.9

6.5

6.1

5.7

7.3

9.2

8.2

7.3

6.5

6.1

6.1

6.5

4.3

5.7

5.7

5.0

4.6

4.3

4.3

3.7

2.4

Aug.

3.4

3.7

3.7

4.3

4.3

3.2

2.9

2.4

3.2

4.6

3.2

2.6

2.4

2.2

2.0

1.1

1.8

1.6

1.4

1.6

2.0

2.0

2.2

3.1

1.6

1.4

1.4

1.4

1.4

1.3

1.3

Mean

1.86

1.93

1.55

8.58

1.4

2.82

5.75'

8.81

1.76

9.03

Sept.

1.1

.9

.9

1.0

1.1

1.1

1.0

1.3

1.3

1.3

1.3

1.1

.9

.6

1.0

.9

1.6

4.6

3.2

2.9

2.6

2.4

2.2

2.2

2.0

2.0

2.6

2_,4

2.6

2.6

Runoff in 

acre-feet

114

115

96

6,200

101

173

342

2,700

2,030

542

105

6,550

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice (no gage-height record Jan. 1-9, Jan. 11 to Feb. 7; discharge computed on basis of weather records).
^TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON PALLS CREEK 75

North Side Minidoka Canal near Minidoka, Idaho

Location - Water-stage recorder, lat. 42°40', long. 113°29', in sec. 1, T. 9 S., R. 25 

K., euO feet downstream from head gates at Minidoka Dam and 6 miles south of Minidoka.

Records available.- May 1909 to September 1947.

Extremes - Maximum discharge during year, 1,740 second-feet July 3-5; maximum gage height, 

y.ya feet July 3; no flow during winter.

1909-47: Maximum discharge, 1,780 second-feet July 11, 1943; maximum gage height, 

10.00 feet May 7, 1943: no flow during winters.

Remarks.- Records excellent. Plow controlled by head gates. Canal diverts water from 

Snake River for irrigation of 64,000 acres of land under North Side Minidoka project.

Cooperation.- Gage-height record furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to Septeaber 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

807

656

513

461

434

417

380

347

347

348

348

350

348

339

337

337

337

337

322

185

187

187

187

189

76

0

0

0

Nov. Dec. Jan. Feb.

Month

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

Calendar year 1946 .......................

toy. .......................................

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

Water year 1946-47 ......................

Mar. Apr.

o

0

0

0

0

0

60

171

204

204

207

208

209

263

306

374

471

550

598

630

758

928

1,060

1,130

1,220

1,280

1,280

1,360

1,490

1,530

-

Secondfoot-days

0

220,888

25,797

222,182

May

1,570

1,590

1,590

1,660

1,700

1,700

1,700

1,690

1,690

1,700

1,640

1,490

1,420

1,370

1,310

1,300

1,300

1,300

1,390

1,460

1,540

1,610

1,590

1,590

1,590

1,590

1,590

1,590

1,580

1,490

1,310

Maximum

807

0

1,690

1 530

1,230

1,740

June

1,130

1,050

995

949

953

949

942

944

826

730

662

632

632

630

632

626

624

680

724

720

778

818

816

907

, 1,050,

1,310

1,440

1,450

1,470

1,480

-

Minimum

0

0

578

0

July

1,580

1,630

1,690

1,730

1,740

1,730

1,720

1,730

1,730

1,720

1,710

1,700

1,700

1,690

1,680

1,690

1,690

1,700

1,690

1,690

1,690

1,690

1,690

1,630

1,590

1,580

1,580

1,580

1,550

1,530

1,460

Aug.

1,420

1,430

1,440

1,440

1,410

1,400

1,400

1,390

1,380

1,380

1,420

1,490

1,530

1,530

1,540

1,560

1,570

1,580

1,570

1,580

1,520

1,450

1,370

1,330

1,330

1,330

1,330

1,300

1,280

1,280

1,280

Meat

0

605

V

860

609

Sept.

1,230

1,180

1,180

1,190

1,190

1,190

1,180

1,110

1,050

990

974

917

866

875

831

807

809

744

648

644

640

638

600

582

580

578

602

626

664

682

Runoff in 

acre-feet

0

438,100

51,170

446.700
76 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON PALLS CRF.EK

South Side Minidoka Canal near Mlnidoka, Idaho

Location.- Water-stage recorder, lat. 42°40', long. 113°29", in sec. 12, T. 9 S., R. 25 

E77"300 yards downstream from head gates at Minidoka Dam and 6 miles south of Minidoka.

Records available.- April 1909 to September 1947.

Extremes.- Maximum discharge during year, 1,340 second-feet May 27 (gage height, 5.89 

rest); maximum gage height, 6.05 feet Aug. 24; no flow during winter.

1909-47: Maximum discharge, 1,360 second-feet July 11, 1945: no flow during 

winters.

Remarks.- Records excellent. Flow controlled by head gates. Canal diverts water from 

snake River for irrigation of 54,000 acres of land under South Side Minidoka project.

Cooperation.- Gage-height record furnished by Bureau Of Reclamation.

Discharge, in second-feet, water year Qe-tober 1946 to September 1947

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

547

306

253

229

218

216

212

200

199

196

196

198

196

192

190

190

190

190

67

0

0

0

0

o

0

0

0

Nov. Dec. Jan. Feb.

Month

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

Calendar year 1946 ......................

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

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

Rater ysar 1946-47 ......................

Mar. Apr.

0

0

0

0

0

0

0

0

o

o

0

0

66

2O4

267

308

315

322

301

288

295

313

381

447

574

697

776

925

1,080

1,170

-

Secondfoot-days

4,185

0

0

166,714

0

0

8,729

35,092

19,132

38,180

25,335

170,743

Hay

1,290

1,310

1,310

1,310

1,320

1,330

1,320

1,320

1,320

1.32O

1,200

878

801

733

612

7O4

757

760

807

886

964

1,160

1,280

1,320

1,330

1,330

1,330

1,300

1,300

1,290

1,200

Maximum

547

0

1,300

0

0

o

1,330

1,260

1,320

1,300

1,260

1,330

June

1,100

1,030

889

712

728

736

736

605

426

353

352

248

0

0

0

157

472

469

469

469

465

463

555

686

992

1,130

1,190

1,220

1,220

1,260

-

Minimum

O

0

0

0

0

0

o

612

0

1,190

1,070

412

O

July

1,300

'1,320

1,320

1,320

1,190

1,320

1,310

1,310

1,300

1,300

1,310

1,310

1,310

1,310

1,310

1-, 31O

,300

,300

,300

,290

,290

,290

1,280

1,280

1.2BO

1,280

1,280

1,290

1,280

1,250

1,250

Aug.

1,270

1,270

1,270

1,240

1,110

1,070

1.16O

1,180

1,190

1,260

1,290

1,280

1,300

1,290

1,270

1,270

1.27O

1,270

1,260

1,250

,220

,070

,180

,260

,240

1,250

1,270

1,250

1,240

1,220

1,210

Mean

o

457

0

o

0

291

1,132

6311

1,29-5

1,23?

841

461

Sept.

1,210

1,220

1,230

1,250

1,260

1,260

1,260

1,240

1,190

1,190

1,110

1,090

1,040

989

916

869

798

524

461

458

437

412

412

424

450

480

503

538

557

557

Runoff In 

acre-feet

0

330,700

0

0

0

17,310

69,600

37,950

79,520

76,730

50,250

338,700
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUP RIVER AND SALMON PALLS CREEK 77

Goose Creek above Trapper Creek, near Oakley, Idaho

Location.- Water-stage recorder, lat. 42°07t, long. IIS'SB 1 , in sec. 13, T. 15 S., R. 

21 E., 5 miles upstream from Trapper Creek and 10 miles south of Oakley.

Records available.- April 1911 to September 1916, March 1919 to September 1947. 

Average discharge.- 24 years (1911-14, 1926-47), 40.9 second-feet.

Extremes.- Maximum discharge during year, 146 second-feet Feb. 15 (gage height, 3.01 

reet);- no flow Sept. 14 .

1911-16, 1919-47: Maximum discharge, 1,670 second-feet Jan. 23 or Feb. 24, 1943 

(gage height, 7.6 feet, from high-water mark), from rating'curve extended above 600 

second-feet by logarithmic plotting; no flow July 22 to Aug. 10, Aug. 22-30, 1934, 

Aug. 15 to Oct. 3, 1935, July 33 to Sept. 25, 1940, Sept. 14, 1947.

Remarks.- Records good except those for periods of ice effect, which are poor. Diversions above station for irrigation. Plow of artesian well, completed in 1935, enters 

below. Practically entire flow passing station is stored in Oakley Reservoir.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

14

29

27

22

20

18

18

19

19

18

18

17

17

17

18

18

18

22

23

23

22

22

23

24

24

24

24

25

27

28

27

Nov.

26

24

21

20

22

25

27

27

27

22

20

19

22

27

30

27

27

29

29

33

28

31

31

33

31

31

33

35

34

34

-

Dec.

33

32

31

31

31

*33

34

35

34

33

32

32

32

33

32

31

20

20

22

25

25

25

25

25

25

25

25

23

22

^0

20

Jan.

20

20

20

18

18

18

18

18

18

18

18

17

17

17

16

15

16

17

18

19

19

19

19

20

20

21

21

21

19

*18

18

Feb.

20

22

22

22

22

26

26

25

25

25

25

70

116

114

108

87

78

61

52

47

45

44

45

49

51

48

46

44

-

_

-

Month

Octcber -»

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

39

43

44

43

43

41

39

*40

42

44

49

50

46

45

49

57

63

66

69

68

67

67

67

69

67

63

60

58

57

58

60

Apr.

61

61

65

70

69

65

68

66

64

63

59

56

54

53

53

55

62

64

73

77

81

86

86

84

81

76

72

69

65

67

Seocndfoot-days

665

866

20,364.4

571

1,365

1,675

2,025

1,730

759

186.5

121.7

93.4

10,880.6

May

72

76

74

74

76

77

73

68

57

61

67

73

80

81

76

67

64

57

52

43

37

36

35

34

32

32

32

32

31

30

31

Maximum

29

35

35

326

21

116

69

86

81

39

16

11

7.0

116

June

31

32

31

31

30

28

25

27

31

31

38

39

34

31

28

26

24

23

22

20

20

20

19

18

17

15

15

17

18

18

-

Minimum

14

19

20

6.2

15

20

39

53

30

15

3.0

1.6

.1

.1

July

16

14

11

9.6

8.7

8.1

6.2

5.8

5.5

5.2

5.0

5.0

5.2

4.6

4.2

4.2

4.0

3.8

3.4

3.2

3.6

6.2

6.8

6.8

6.2

5.2

4.6

4.2

3.8

3.4

3.0

Aug.

3.0

2.8

3.4

5.8

6.8

11

7.2

5.5

5.2

4.8

4.8

4.4

4.0

3.4

3.4

3.6

4.0

3.8

3.6

3.6

3.0

2.8

3.0

2.8

3.2

2.8

2.6

2.2

1.8

1.6

1.8

Mean

21

27

27

55

184fi

54

6?

55

25

6

3

3

29

5

5

9

8

4

8

0

5

8

3

02

93

11

8

Sept.

1.5

1.2

1.0

.8

.6

.9

.5

.4

.4

.4

.4

.2

.2

.1

.2

.2

1.4

3.8

6.8

5.8

6.5

6.5

6.5

6.5

6.8

7.0

6.5

6.5

6.8

- 7.0

-

Runoff in 

ao re-feet

1,320

1,640

1,720

40,400

1 ISO

2^710

3,320

4,020

3,430

1,510

370

241

185

21,600

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 4-6, 11-14, Dec. 17, 18, Dec. 20 to Feb. 12.
78 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON PALLS CFEEK

Oakley Reservoir near Oakley, Idaho

Location.- Staff gage, lat. 42°12' , long. 113°S5', in sec. 19, T. 14 S., R. 22 E., Just 

upstream from right abutment of dam on Goose Creek, 4 miles southwest of Oakley.

Records available.- October 1912 to September 1947.

Extremes.- Maximum contents observed during year, 27,800 acre-feet May 4 (gage height, 84.0 

reet): minimum observed, 1,740 acre-feet Sept. 28 (gage height, 21.9 feet).

1912-47: Maximum contents observed, 74,600 acre-feet June 15, 1921 (gage height, 

136.2 feet); reservoir drained at close of seasons in 1915, 1919, 1920, 1926, 1933.

Remarks.- Reservoir is formed by earth dam constructed in 1911-13; storage began in 1911. 

capacity, 74,350 acre-feet between gage heights 0.0 foot (bottom of diversion tunnel) 

and 136.0 feet (crest of spillway). Dead storage negligible. Water is used fbt Irrigation of lands along Goose Creek in Oakley Canal Co. project. Figures given herein represent usable contents. Gage read occasionally and contents shown on days observations 

were made.

Cooperation.- Gage readings and capacity table furnished by Oakley Canal Co.

Contents, In acre-feet, water year October 1946 to September 1947

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

.

10,300

_

-

-

-

10,700

_

-

-

-

11,000

-

-

11,300

-

-

-

-

-

-

11,500

_

-

-

-

-

11,900

Nov.

12,300

-

.

-

-

-

13,700

.

-

-

-

13,000

-

-

-

-

-

-

-

13,700

-

_

-

-

-

-

-

Dec.

14,300

-

14,600

-

-

-

-

-

-

-

-

15,400

-

-

-

-

-

.

15,800

-

-

.

-

-

-

-

-

Jan.

16,500

16,700

.

-

-

-

16 , 900

_

-

-

-

17,100

.

_

-

-

17,300

.

-

-

-

-

17,600

-

-

17,900

17 , 900

-

Feb.

18,000

-

_

-

-

18,600

-

.

-

-

-

19,600

.

_

-

-

-

.

-

20,600

-

-

.

_

-

-

_

-

Mar.

31,200

-

_

-

21,700

-

-

.

22,000

-

-

-

-

_

-

-

-

.

-

23,400

-

-

_

_

-

-

_

34,300

Apr.

1

-

35,200

-

-

_

-

36,000

-

-

_

36,400

_

_

-

-

37,000

_

-

_

27,400

-

_

27,600

-

37,700

_

-

Hay

_

-

_

_

-

25 , 100

-

-

_

24,800

_

34,600

-

-

_

_

_

_

34,600

33,700

_

-

_

_

-

June

33,000

-

.

-

31,400

_

-

_

j

-

_

33,000

.

_

-

_

-

.

33,100

_

31,600

-

_

_

_

31,300

,

-

July

-

-

19,700

-

-

-

-

17,600

-

16,900

-

-

_

_

-

14,600

14,100

_

.

_

_

-

_

13,500

-

-

_

-

Aug.

10,900

-

.

-

-

-

10,300

9,980

-

-

-

-

.

.

-

8,590

-

_

-

_

_

-

7,150

_

-

7,330

_

-

Sept.

5,480

.

-

-

-

-

_

3,960

-

.

-

_

_

-

-

-

.

-

2,900

_

-

_

-

1,740

-

1,810

-
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK 79

Trapper Creek near Oakley, Idaho

Location.- Water-stage recorder and concrete control, lat. 42°10', long. 113°59', in sec. 

34, T. 14 S., R. 21 E., 4 miles upstream from Oakley Dam and 7 miles 'southwest of 

Oakley.

Records available.- May 1911 to September 1916, March 1919 to September 19*7. 

Average discharge.- 23 years (1911-12, 1913-14, 1926-47), 13.6 second-feet.

Extremes.- Maximum discharge during year, 25 second-feet May 11 (gage height, 5.09 feet); 

minimum, 7.0 second-feet Sept. 3, 5 (gage height, 4.75 feet).

1911-16, 1919-47: Maximum discharge recorded, 270 second-feet Aug. 17, 1941 (gage 

height, 6.99 feet), during cloudburst, from rating curve extended above 100 secondfeet on basis of velocity-area studies and flow over we-ir (a higher flow may have 

occurred during cloudburst about 12 p.m. Aug. 15, 1931); minimum not determined, probably occurred during winter.

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

A I'ew small diversions above station. Flow of artesian well, completed in 1936, enters above. Practically entire flow passing station is stored in Oakley Reservoir.

Cooperation.-'Gage-height record furnished by Oakley Canal Co.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

Z

4

5

6

V

8

9

10

11

12

13

14

15

16

17

13

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12

12

11

11

11

11

11

12

11

10

10

10

10

10

10

1111

1111

10

10

10

111111

11

11

12

12

11

11

Nov.

11

10

10

10

11

11

12

12

12

11

10

1011

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

-

Dec.

12

12

12

12

12

h!2

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

11

11

10

10

10

Jan.

10

10

10

10

10

10

10

10

10

10

9.5

9.5

9.5

9.5

9.0

9.0

9.0

9.5

9.5

9.5

10

10

10

10

10

11

11

11

11

11

11

Feb.

12

12

12

12

12

12

12

12

12

12

13

14

15

14

14

14

14

13

12

12

12

12

12

12

12

12

12

12

-

-

-

Month

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

Calendar year 1946 ......................

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

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

Water year 1946-47 ......................

Mar.

12

12

12

12

12

12

12

12

12

14

14

12

12

12

14

14

15

14

15

15

15

15

15

15

14

14

14

14

14

15ir

Apr.

16

16

17

16

15

16

15

16

16

15

15

14

15

15

16

17

18

18

18

18

19

19

18

18

18

17

17

17

18

18

-

Secondfoot-days

337

354

6,353.0

501

268.7

4,405.4

May

19

19

20

20

20

20

21

21

22

23

24

24

23

22

20

19

17

17

17

IS

15

15

16

16

16

16

15

15

15

15

IS

Maximum

12

57

11

24

June

16

17

17

17

15

15

15

15

15

14

17

15

14

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

-

Minimum

10

9.5

7.6

7.6

July

10

10

9.5

10

10

10

10

9.5

10

9.5

9.5

9.5

9.0

9.0

10

10

10

9.0

9.0

8.5

8.5

8.5

8.5

8.5

8.0

8.0

8.0

7.6

7.6

7.6

7.6

Aug.

8.0

8.5

8.5

10

10

8.0

7.6

7.6

8.0

8.0

8.0

8.0

8.0

8.0

8.5

8.5

8.0

8.0

8.0

9.0

9.0

8.5

9.0

8.5

8.0

8.0

8.0

8.0

7.6

8.0

8.0

Mean

11.4

17.4

8.?6

12.1

Sept.

8.0

7.6

8.0

8.0

7.6

8.0

8.5

9.0

8.5

9.0

8.5

8.5 8-.0

8.5

9.0

8.5

10

11

11

10

10

10

9.5

10

9.5

9.5

9.5

8.5

8.5

8.5

-

Runoff in 

acre-feet

702

12,590

J?**°

533

8.740

h Computed from staff-gage reading.

Note.- No gage-height record Oct. 4, 5, Nov. 2 to Dec. 5,'Dec. 7 to Jan. 26, June 16-23; discharge 

computed on basis of records for Goose Creek above Trapper Creek, near Oakley, and Rock Creek near 

Rock Creek.
80 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK 

P. A. lateral near Milner, Idaho

Location - Staff gage, lat. 42°32', long. 114°01', in sec. 22, T. 10 S., R. 21 E., 600 

reet downstream from pumping station and 2j miles northeast of Milner

Records available.- April 1919 to September 1947. Records collected by North Side Canal 

 Co. 191t> to 1918.

Extremes. - Maximum discharge during year, 62 second-feet on many days; no flov at times.

I9T9-47: Maximum discharge, 64 second-feet May 11-13, 1920, July 11, 12, 19-29, 

1932; no flow at times.

Remarks.- Records excellent. Gage read twice daily. Flow regulated by pumpirg plant 

wnicn lifts water from Snake River for irrigation on North Side Twin Falls tract.

Cooperation.- Gage-height record and one discharge measurement furnished by North Side 

Canal Co.

Discharge, in second-feet, water year October 1946 to September 1947

Day^

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5

20

5

0

0

0

0

0

0

0

0

0

-

Dec. Jan. Feb.

Month

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47 ......................

Mar. Apr.

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

16

16

30

42

58

-

£££.

0

8,973

,403

8,897

May

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

61

61

61

61

61

61

61

61

61

61

61

61

61

61

61

61

Maximum

0

62

60

62

June

0

58

58

60

60

60

60

60

60

60

55

55

53

54

54

54

54

54

55

51

53

53

57

59

62

62

62

62

62

62

-

Minimum

0

0

0

Q

July

62

62

62

62

62

62

62

62

62

62

62

60

62

62

61

61

61

61

60

61

60

60

60

60

60

59

60

60

62

62

61

Aug.

61

60

61

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

Mean

o

24.6

46.8

24.4

Sept.

60

60

60

60

60

60

60

60

60

60

SO

60

60

60

60

60

60

60

60

43

43

52

52

50

23

0

0

0

0

0-

Runoff in 

ao re feet

0

17,800

2,780

17,640
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON PALLS CREEK 81 

Milner low-lift canal near Milner, Idaho

Location.- Pumping plant, lat. 4"°31', long. 114°01', in sec 32, T 10 S R 21 E 

at head of canal and Ij miles south of Milner.

Records available.- June 1921 to September 1947.

Extremes - Maximum discharge during year, 200 second-feet July 4, 5; no flow on many days 

IS21-47: Maximum discharge, 203 second-feet Aug. 95, 27, 1945; no flow on many days.

Remarks.- Records excellent. Flow controlled by pumping plant which lifts water from 

snake River above Milner Dam for irrigation of 9,000 acres of land in Milner low-lift 

irrigation district.

Cooperation.- Record of pump discharges furnished by Milner low-lift irrigation district. 

Discharge, in second-feet, water year October 1946 to September 1347

Day

1

2

3

4

5

6

7

8

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

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

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

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

Calendar year 1946 ......................

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

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

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

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

May. .......................................'

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

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

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

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

Water year 1946-47 ......................

Mar. Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

46

82

94

97

121

140

153

177

182

-

Seoondfoot-days

0

0

0

27,036

0

O

0

1,092

5,280

2,449

6,092

6,160

4,399

25,472

May

182

182

182

180

179

178

177

176

175

174

173

173

173

173

173

173

173

173

173

173

173

173

173

173

173

173

171

148

136

113

159

Maximum

0

0

0

200

0

0

0

182

182

176

200

199

199

200

June

0

0

0

0

0

0

0

0

0

48

25

50

50

50

76

100

100

116

131

131

131

131

131

144

163

174

174

174

174

176

-

Minimum

0

0

0

0

0

0

0

0

113

0

175

197

83

0

July

175

178

192

200

200

199

199

198

198

197

197

197

197

197

197

197

198

198

199

199

199

199

199

199

199

198

198

198

197

197

197

Aug.

197

197

197

198

198

198

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

199

Mean

0

0

0

74.1

0

0

0

36.4

170

81.6

197

199

147

69.8

Sept.

199

199

199

185

175

175

175

175

175

175

175

175

175

175

175

172

163

148

148

148

123

116

93

83

83

83

83

83

83

83

-

Runoff in 

acre- feet

o

0

0

53,620

0

0

0

2,170

10,470

4,860

12 080

12^220

8,720

50,520
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK

Gooding Canal at Milner, Idaho

Location.- Water-stage recorder on Milner-Gooding Canal in NW^ sec. 18, staff gage in di- 

 version canal in sec. 19, T. 10^., R. 21 E., and differential recorder on control gates 

of North Side-Canal Co. diversion in NE^ sec. 13, T. 10 S., R. 20 E., about 3 miles 

downstream from head gates that are in sec. 28, T. 10 S., R. 21 E., lat. 42°31', long. 

114°01'

Records available.- May 1930 to Feptember 1947.

Extremes.- Maximum daily discharge during year, 2,520 second-feet July 21; no flow on many

1930-47: Maximum daily discharge, 2,580 second-feet July 31, Aug. 1, 2, 1942, July 

31, Aug. 1, 3, 4, 1943; no flow on many days.

Remarks.- Records good. Gooding Canal diverts water from Snake River for Milner-Gooding 

project of Bureau of Reclamation and in part for project of North Side Canal Co. The 

latter project also receives water through North Side Twin Falls Canal and P. A. 

lateral. Discharge of canal is computed by combining the discharge of Milner-Gooding 

diversion and that of North Side Canal Co. diversions below their division point, and 

adding from 20 to 60 second-feet to that sum for loss between head gates aid division 

point.

Cooperation.- Gage-height record furnished by North Side Canal Co. and American Fall Reservoir District No. 2.

Discharge, in seoona-ieet, water year October 1946 to September 1947

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

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

350 

580 

630 

690

610 

560 

580 

620 

610

590 

560 

560 

590 

590

590 

610 

600 

590 

590 

600

Nov.

600 

610 

620 

590 

380

120 

70 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

Month

Octc 

Move 

Dece

Ca

Jam 

Febt 

Mar-L 

Apr]

June 

Jul S 

Augi 

Sept

WE

lendar year 1946. ....

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

ter year 1946-47.....

Jan.

Secondfoot -days

11,700 

2,990 

0

374,169

0 

0 

4,000 

26,280 

68,950 

63,870 

74,970 

70,390 

56,430

379,580

Feb. Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

100

150 

130 

80 

120 

140

230

470 

630 

650 

650 

650

Apr.

650 

650 

650 

630 

310

70 

69 

9 

8 

3

1 

0 

0 

0 

380

1,000 

1,160 

1,210 

1,340 

1,370

1,410 

1,470 

1,590 

1,690 

1,660

1,670 

1,720 

1,780 

1,870 

1,910

May

1,960 

2,070 

2,140 

2,160 

2,180

2,210 

2,210 

2,180 

2,170 

2,190

2,200 

2,190 

2,210 

2,240 

2,320

2,330 

2,320 

2,330 

2,310 

2,330

2,310 

2,310 

2,310 

2,280 

2,270

2,220 

2,250 

2,220 

2,180 

2,180 

2,170

Discharge In second-feet

Maximum

690 

620 

0

2,480

0 

0 

650 

1,910 

2,330 

2,300 

2,520 

2,510 

2,140

2,520

Minimum

0 

0 

0

0

0 

0 

0 

0 

1,960 

1,950 

2,250 

2,120 

0

0

Mean

377 

99.7 

0

1,025

0 

0 

129 

876 

2,224 

2,129 

2,418 

2,271 

1,881

1,040

June

2,170 

2,160 

2,160 

2,150 

2,160

2,150 

2,150 

2,150 

2,080 

2,130

2,040 

1,960 

1,970 

1,950 

1,950

1,960 

1,980 

1,980 

2,070 

2,160

2,190 

2,180 

2,160 

2,200 

2,260

2,260 

2,290 

2,260 

2,290 

2,300

Total 

runoff in 

acre-feet

23,210

5,930 

0

742,150

0 

0 

7,930 

52,130 

136,760 

126,690 

148,700 

139,620 

111,930

752,900

July

2,270 

2,250 

2,250 

2,310 

2,370

2,370 

2,370 

2,350 

2,380 

2,410

2,350 

2,340 

2,400 

2,410 

2,420

2,440 

2,490 

2,480 

2,470 

2,480

2,520 

2,500 

2,480 

2,470 

2,470

2,480 

2,500 

2,480 

2,480 

2,490 

2,490

Aug.

2,480 

2,500 

2,510 

2,500 

2,510

2,470 

2,410 

2,390 

2,390 

2,390

2,410 

2,330 

2,220 

2,210 

2,190

2,170 

2,180 

2,180 

2,190 

 2,180

2,150 

2,150 

2,180 

2,160 

2,170

2,150 

2,140 

2,120 

2,120 

2,120 

2,120

Sept.

2,140 

2,130 

2,110 

2,110 

2,100

2,120 

2,120 

2,130 

2,110 

2,070

2,090 

2,090 

2,070 

2,060 

2,020

2,020 

1,990 

1,960 

1,950 

1,880

1,840 

1,830 

1,820 

1,790 

1,760

1,750 

1,760 

1,770 

840 

0

Distribution (acre-feet)

To Milner- To North Side 

Gooding Canal Co. 

project project

0 23,210 

0 5,930 

0 0

409,750 332,400

0 0 

0 0 

2,080 5,850 

27,510 24,610 

78,780 57,980 

71,070 55,620 

87,950 60,750 

77,890 61,730 

59,270 52,660

404,550 348,340
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUP RIVER AND SALMON PALLS CFEEK 83

North Side Twin Palls Canal at Milner, Idaho

Location.- Water-stage recorder, lat. 42°32', long. 114°01', in sec. 20, T. 10 S., R. 21 

K., half a mile north of Milner and three-quarters of a mile downstream from head gates 

at Milner Dam.

Records available.- May 1909 to September 1947.

Extremes.- Maximum discharge during year, 2,850 second-feet July 10; no flow On many days.

IW9-47: Maximum daily discharge, 3,200 second-feet July 5-7, 29-31, 1921, hay 15, 

1928, June 2, July 23, 1929; no flow at times when head gates were closet?.

Remarks.- Records excellent April to Septemberjind^good October to March. Flow controlled 

by head gates. Water diverted by this canal and by P. A. lateral and part of that diverted by Gooding Canal, all at Milner, is used for irrigation of 163,OOC acres of land 

under North Side Canal Co. system. Diversions began in spring of 1909.

Cooperation.- Gage-height record furnished by North Side Canal Co.

Discharge, in second-feet, water year October 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

923

886

832

767

752

734

696

651

614

618

624

230

0

0

0

0

0

o

0

o

o

o

0

0

0

o

0

o

0

o

o

Nov.

0

o

o

0

o

0

224

534

559

559

556

559

559

559

556

559

553

550

550

537

522

518

509

5O3

503

500

497

50O

503

506

Dec.

5O9

503

497

5OO

503

509

512

515

506

503

497

503

522

528

522

518

525

522

518

515

518

497

497

487

478

478

466

478

478

481

481

Jan.

480

480

480

48O

48O

470

470

46O

460

460

427

454

454

450

450

450

450

450

450

450

4 SO

451

416

401

395

390

393

401

401

401

401

Feb.

404

404

401

404

404

404

4O4

4O4

404

401

401

407

401

407

398

387

379

393

395

395

398

401

401

416

416

418

418

436

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Uar.

436

433

433

469

488

469

507

605

6O8

608

585

605

572

491

457

445

439

445

454

454

454

395

312

96

0

O

O

O

O

O

0

Apr.

O

O

O

0

366

585

626

626

602

646

629

643

678

810

928

944

95&

988

1,090

1,040

1,020

1,120

1,340

1,490

1,620

1,750

1,820

1,870

2,020

2,120

Secondf cot-days

8,327

12,475

15,J66

448,674

13,705

11,301

11,260

28 , 327

75,080

58,410

82,440

79,430

52,340

448,661

May

2,220

2,240

2,26O

2,36O

2,45O

2,470

2,470

2,440

2,400

2,460

2,46O

2,440

2,460

2,420

2.440

2,460

2,460

2,440

2,44O

2.47O

2,460

2,440

2,430

2,380

2,410

2,46O

2,500

2,460

2,460

2,44O

2,380

Maximum

923,

559

528

2,750

480

436

2,120

2I430

2,680

2.50O

2,8OO

June

2,370

2,29O

2,270

2, ISO

2,040

1,97O

1,880

1,,390

1,360

1,750

1,220

1,300

1.51O

1,450

1,540

1,69O

1,830

1,79O

. 1,960

2V060

2,O40

1,980

2,070

2,190

2,350

2,430

2,420

2,300

2,380

2,400

Minimum

0

0

466

0

39C

37 c

O

0

2,220

1,220

2^480

1,090

O

July

2,320

2,390

2,44O

2,48O

2,540

2,580

2,620

2,620

2,76O

2,800

2,70O

2,740

2,720

-2,750

2,740

2,760

2,720

2,690

2~,710

2,720

2,730

2,720

2,7OO

2,7OO

2,720

2,720

2,700

2,680

2,670

2,650

2,650

Aug.

2,660

2.66O

~2~768O~ 2,68O 

2,650

2,60O

2,606

2.58O

2,580

2,560

2,600

2,580

2,600

2,570

2,530

2,54O

2,54O

2,550

2,540

2,540

2,530

2,530

2,540

2,520

2,510

2,510

2.5OO

2,480

2,480

2,48O

2,510

Mean

269

416

502

1 * 229

442

404

363

944

2,422

1 947

2^659

2,f62

1,745

1,229

Sept.

2,500

2,480

2,450

2,440

2,380

2,340

2,280

2,240

2,170

2,12O

2,07O

1,870

1,7OO

1,700

1.69O

1,660

1,620

1,550

1,460

1,340

1,280

1,280

1,300

1,29O

1.280

1,14O

1,090

1.O90

1,410

1,120

Runoff in 

acre-feet

16,520

24,740

30,880

889,800

27,180

22,42O

22,330

56,190

148 ,9OO

115,900

163,500

157,500

103,800

889,900
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK

South Side Twin Falls Canal at Milner, Idaho

Location.- Water-stage recorder, lat. 42°31', long. 114°01', in sec. 29, T. 10 S., R. 21 

E., 700 feet downstream from head gates at Milner Dam.

Records available.- May 1909 to September 1947.

Extremes.- Maximum discharge during year, 3,730 second-feet July 10 (gage height, 10.50 

feet); minimum, 42 second-feet Mar. 23 (gage height, 1.45 feet).

1909-47: Maximum daily discharge, 4,600 second-feet Aug. 12, 1918, computed on 

basis of st'age-discharge relation for canal plus estimates by. hydrographer of water 

wasted through spillway below station and returned to river; no flow Sept. 20, 1920.

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

record, which are fair. Flow controlled by head gates. Canal has diverted water 

since March 1905 from Snake River at Milner Dam for irrigation of 202,000 acres of 

land in Twin Falls County.

Cooperation.- Gage-height record furnished by Twin Falls Canal Co.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

26

27

28

29

30

31

Oct.

1,600

1,570

1,480

,410

,370

,300

,240

,140

,070

992

913

889

865

810

778

781

739

698

655

634

491

408

637

475

aSO

a60

a60

a60

a 60

287

1,120

Nov.

1,220

739

661

664

661

604

532

366

493

535

526

505

388

374

362

359

463

526

520

511

514

520

520

526

520

517

517

517

520

535

-

Dec.

541

538

538

544

547

562

571

571

568

568

571

*571

568

565

568

568

568

565

562

562

562

559

562

559

559

556

559

559

556

556

553

Jan.

544

520

538

526

502

483

477

477

483

*483

497

604

583

601

601

604

613

613

613

616

622

625

»622

619

610

607

604

595

589

577

574

Feb.

559

559

544

541

538

529

535

535

526

535

526

535

535

535

541

541

541

544

550

*550

547

532

532

520

511

532

550

556

_

_

-

Month

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

Calendar year 1946 ......................

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

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

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

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

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

Water year 1946-47 ... ..................

Mar.

547

541

541

544

547

538

541

547

544

544

529

505

511

514

511

511

511

511

511

514

289

44

42

46

366

678

1,100

661

577

619

664

Apr.

691

762

813

765

765

749

742

771

797

813

797

765

862

926

1,080

1,250

1,440

1,670

1,730

1,890

1,980

2,090

2,220

2,300

2,490

2,730

2,890

2,950

3,090

3,160

Secondfoot-days

17,356

628,004

71,020

638,230

May

3,300

3,36O

3,360

3,400

3,420

3,420

3,420

3,460

3,500

3,540

3,520

3,470

3,440

3,360

3,380

3,460

3,480

3,450

3,450

3,480

3,480

3,440

3,440

3,400

3,440

3,500

3,560

3,450

3,440

3,460

3,420

Maximum

571

3,580

3,560

3,680

June

3,300

3,170

3,070

2,940

2,860

2,840

2,800

2,730

2,600

2,600

2,520

2,470

2,370

2,330

2,320

2,340

2,350

2,360

2,550

2,670

2,950

3,110

3,210

3,290

3,320

3,340

3,360

3,340

3,400

3,38O

-

Minimum

538

60

691

3 330

1,270

42

July

3,330

3,370

3,430

3,490

3,560

3,540

3,580

3,570

3,650

3,680

3,550

3,600

3,630

3,650

3,630

3,620

3,580

3,580

3,580

3,580

3,580

3,600

3,610

3,620

3,650

3,640

3,630

3,640

3,630

3,630

3,630

Aug.

3,620

3,590

3,590

3,610

3,580

3,520

3,540

3,550

3,660

3,600

3,630

3,610

3.6OO

3,56O

3,560

3,580

3,600

3,600

3,600

3,600

3,600

3,600

3,600

3,580

3,560

3,560

3,560

3,550

3,540

3,540

3.58O

Mean

795

560

1,721

539

1,533

2,367

1,749

Sept.

3,560

3,520

3,460

3,430

3,370

3,220

3,110

3,060

E,930

2,860

2,840

2,770

2,640

2,630

2,550

2,390

2,230

2,080

1,870

1,780

1,750

1,700

1,590

1,490

1,460

1,430

1,380

1,350

1,300

1,270

-

Runoff in 

acre-feet

34,420

1,246,000

91,200

140,900

1,266,000

* Winter discharge measurement made on this day.

a No gage-height record, gates closed; leakage estimated by watermaster, Milner Dam.

Note.- Stage-discharge relation affected by ice Dec. 30 to Feb. 8.
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK 85

Rock Creek near Rock Creek, Idaho

Location.- Water-stage recorder, lat. 42°22', long. 114°18', in sec. 25, T. 12 S., R. 18 

E., 0.1 mile downstream from road bridge, three-quarters of a mile downstream from 

West Fork Rock Creek, 5 miles south of Rock Creek settlement, and 12 miles south of 

Hansen.

Records available.- November 1938 to July 1939, November 1943 to September 1947. November 

19U9 to August 1913 at site 2 miles downstream; records equivalent except-for ranch 

diversions and small inflow from artesian wells developed in recent years.

Extremes.- Maximum discharge during year, 130 second-feet May 4, 5; maximum gage height, 

2T2TTeet May 4; minimum discharge, 6.4 second-feet Aug. 20, 21 (gage height, 1.03 

feet).

1909-13, 1938-39, 1943-47: Maximum discharge observed, 429 second-feet May 21, 1912 

(gage height, 10.4 feet, site and datum then in use); minimum observed, 3.6 secondfeet Aug. 7-12, 1910 (gage height, 0.3 foot, site and datum then in use).

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

ranch diversions above station.

Small

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

17

14

14

13

13

12

13

13

12

12

12

12

12

12

13

13

13

13

12

12

13

16

14

14

13

13

14

14

14

13

Nov.

14

14

13

14

14

14

14

14

14

13

13

13

13

14

14

13

13

13

13

14

13

14

14

15

14

16

20

18

18

17

-

Dec.

17

17

17

16

16

19

18

18

17

17

17

17

17

*20

20

18

13

14

19

17

17

17

16

16

16

16

16

14

13

14

bll

Jan.

15

14

blO

bll

1)13

15

14

14

14

14

14

13

12

14

b!2

612

D13

b!3

14

14

14

13

13

14

14

16

15

13

*14

12

12

Feb.

15

14

14

14

14

14

14

14

14

15

14

15

17

17

18

19

20

20

20

20

19

19

18

18

18

17

17

17

-

_

-

Month

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

Calendar year 1946 ......................

Bay. .......................................

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

Water year 1946-47 ......................

Mar.

17

18

17

17

16

16

16

16

16

17

18

17

17

18

19

21

23

26

31

34

38

41

46

44

43

42

40

40

43

50

52

Apr.

53

54

58

60

58

54

53

54

57

54

53

51

52

58

71

84

91

104

103

103

104

104

97

90

88

86

90

97

107

110

-

Second 

foot-days

510

15,028.9

239.6

9,355.9

May

110

116

124

126

125

116

109

102

97

91

92

87

82

76

71

66

62

61

58

56

53

51

50

46

44

42

41

42

37

36

37

Maximum

20

278

52

9.5

126

June

36

36

39

34

32

30

30

35

35

32

38

41

36

34

31

29

30

29

26

25

26

25

34

23

20

19

19

19

17

15

 -

Minimum

11

8.3

14

6.8

6.4

July

14

13

12

12

12

12

12

12

12

12

11

11

11

11

10

12

11

10

9.5

9.5

9.0

8.6

8.6

8.6

8.6

8.3

8.3

7.9

7.5

7.5

7.5

Aug.

7.5

7.9

8.3

8.6

8.6

7.9

7.9

7.9

7.9

7.9

7.9

7.9

7.9

7.9

7.5

7.5

7.2

6.8

6.8

6.8

6.4

6.8

7.2

7.5

7.2

6.8

6.8

6.8

6.8

6.8

7.Z

Meal

16.5

41. Z

7.99

25.6

Sept.

7.2

6.8

6.8

6.8

7.2

.8

.2 ' .5

.5

.5

.5

.5

.2

.2

.5

.2

.9

9.5

9.0

9.5

9.0

9.0

8.3

8.3

8.6

9.0

9.0

9.0

8.6

9.5

-

Runoff- in 

acre-feet

1,010

29,800

823

475

18,550

Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK

Rock Creek near Twin Falls, Idaho

Location.- Water-stage recorder, lat. 42°36', long. 114°32', in SW£ sec. 36, T. 9 S., R.

ifci K., at highway bridge, 3 miles upstream from mouth and 4 miles northwest of town of

Twin Falls.

Records available.- March 1922 to November 1947 (discontinued). 

Average discharge.- 24 years (1922-46), 211 second-feet. 

Extremes.- Maximum discharge recorded during period October 1946 to November 1947, 484

second-feet June 9 (gage height, 3.12 feet), but may have been greater during periods

of no gage-height record; minimum recorded, 96 second-feet Jan. 11 (gage height, 1.69

feet), but may have been less during periods of no gage-height record.

1922-47: Maximum discharge, 984 second-feet Sept. 21, 1927 (gage height, 4.5 feet,

datum then in use, from floodmarks); minimum, 90 second-feet Mar. 28, 1941 (gage height,

1.66 feet) . 

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

fractically all normal summer flow diverted several miles above station for irrigation.

Waste water from South Side Twin Falls low-line canal, which crosses Rock C'eek 12 miles

above station, causes abrupt fluctuations in stage at times. Irrigation waste water

and return flow from project lands enter above station.

Discharge, in second-feet, 1946-47 

1946-47

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.

339

349

326

319

313

306

306

306

294

282

279

270

267

267

262

264

250

245

250

253

253

262

294

256

253

253

250 

239

207

191

1S7

Nor.

204

256

248

242

245

242

242

237

219

209

204

195

193

189

187

179

200

259

256

262

245

242

242

239

237

.

V a250

1

h259

-

Dec.

^ a260

1

267

264

282

264

262

262

248

214

209

198

193

187

173

168

171

175

173

> alSO

189

187

Jan.

155

152

alSl

150

139

134

132

118

107

100

97

V

(. allO

1

181

198

209

211

219

219

200

187

1

S a!70

1

142

142

145

141

Feb.

149

152

127

121

121

121

120

118

120

121

121

123

120

118

120

123

121

118

118

123

128

127

127

127

132

132

132 

128

_

-

-

Mar.

132

134

134

130

124

120

120

121

123

124

113

109

116

120

121

123

123

110

114

118

117

126

160

.

-

_

-

_

-

-

Apr.

h!24

-

Hay

h209

June

.

_

-

-

282

270

273

342

436

377

402

380

363

349

342

332

329

322

262

256

256

288

322

319

316

270

229 

234

232

226

-

July

219

214

204

202

209

214

214

207

207

211

214

214

211

214

214

.214

214

211

214

216

216

216

216

219

221

224

232 

234

237

248

250

Aug.

245

245

237

248

248

250

239

234

232

229

229

234

232

237

237

237

234

229

229

229

232

229

234

239

248

245

242 

242

245

239

248

Sept.

253

259

262

264

267

273

a280

291

294

288

291

294

297

285

294

291

285

288

282

273

267

267

270

264

262

262

259 

259

259

262

-

a Ho gage-height record; discharge Interpolated, 

Rock Creek.

h Computed from staff-gage reading.

or computed on basis of records fo~ station near

Day

1

3 

4 

5 

6

Oct.

259 

256 

259 

262 

267 

264

Nov.

209 

209

Day

7 

8 

9 

10 

11 

12

Oct.

a264 

a264 

a263 

a262 

a262 

262

Nov.

h219

Day

13 

14 

15 

16 

17 

18

Oct.

262 

259 

256 

256 

250 

239

Nov.

h!91 

h!83

Day

19 

20 

21 

22 

23 

24

Oct.

229 

214 

181 

175 

175 

200

Nov.

1

Day Oct.

25 214 

26 214 

27 219 

28 219 

29 216 

30 214 

7,1 211

Nov.

1

a Ho gage-height record; discharge Interpolated. 

h computed from staff-gage reading.

Monthly discharge, In second-feet, 1946-47

Month

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

Calendar year 1946 .......................

April

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

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

October 1947 ...............................

Seoondfoot-days

RQ?S>

6,566

80,568

R nnQ

8,242

7 ,347

Maximum

282

349

250

297

267

Minimum

187

168

124

118

226

253

175

Mean

212

221

125

123

275

?37

Runoff in 

aore-feet

13,020

159,800

16,350

14,570
SALMON FALLS CREEK BASIN 

Salmon Falls Creek near San Jacinto, Nev.

87

Location.- Water-stage recorder, lat. 41°5?', long. 114°42', in sec. 23, T. 47 N., R, 64 

E., in canyon, 200 yards downstream from highway bridge, 250 yards downstream from 

Shoshone Creek, and 5 miles north of San Jacinto.

Records available.- September 1909 to September 1916, October 1918 to September 1947. 

Average discharge.- 33 years (1910-16, 1919-20, 1921-47), 128 second-feet.

Extremes.- Maximum discharge during year, 342 second-feet May 12 (gage heigh4:, 4.32 feet); 

minimum, 6.8 second-feet Sept. 16 (gage height, 2.29 feet).

1909-16, 1918-47: Maximum discharge, between 2,060 and 2,420 second-fset Feb. 24, 

1943 (gage height exceeded range~of recorder, 10.20 feet, but was not mor? than 1.2 

feet higher), from rating curve extended above 1,400 second-feet; minimum. 5.3 secondfeet Aug. 17, 1940 (gage height, 2.16 feet).

Remarks.- Records good. Many diversions above station for irrigation. Salmon Dam of 

salmon River Canal Co., 15 miles below station,'forms a reservoir having a capacity 

of about 180,000 acre-feet.

Discharge, In second-feet, water year October 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

14

lb

16

18

19

20

21

22

23

24

25

26

27

28

29

30

Oct.

26

35

37

44

42

42

42

44

50

53

50

52

50

48

48

59

57

58

57

55

55

58

59

59

58

55

54

57

58

58

57

Nov.

58

58

54

55

58

57

59

63

60

58

57

54

59

60

64

59

63

63

66

72

72

70

69

69

68

72

74

78

80

80

-

Dec.

7S

79

76

73

73

82

93

93

91

85

84

84

85

86

88

85

59

60

79

72

73

74

72

72

72

73

76

68

55

63

58

Jan.

58

61

sa

51

54

53

52

52

54

55

54

51

51

50

48

44

46

48

50

53

54

55

55

59

60

64

65

64

66

60

59

Feb.

66

70

70

70

73

80

82

78

76

79

76

112

184

184

188

156

150

141

137

123

112

107

107

118

132

123

119

112

_

-

Month

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

Calendar year 1946 ......................

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

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

July

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

Water year 1946-47 ......................

Mar.

109

107

106

106

102

98

94

91

91

93

101

101

93

101

109

121

139

160

178

195

199

201

210

219

212

197

182

172

168

170

180

Apr.

191

201

214

226

217

221

217

210

210

206

195

186

180

172

162

172

191

217

237

246

£49

249

232

217

2O8

195

186

178

174

172

-

Seccndfcct-days

2,362

52,284

1,704

6,131

4,032

293.7

33,551.3

May

180

184

186

206

230

258

262

265

281

293

320

328

328

303

267

239

214

201

188

188

182

176

176

174

170

166

160

160

160

170

178

Maximum

80

93

881

188

249

17

328

June

182

188

206

199

201

170

148

152

160

164

156

154

160

156

150

134

125

125

125

121

111

106

98

91

88

82

78

72

66

64

-

Minimum

54

55

16

44

66

162

160

64

7.4

7.4

Julx.

57

52

46

40

38

34

33

30

2d

28

26

26

24

23

24

24

24

23

22

21

21

22

22

22

21

21

21

19

18

14

12

Aug.

11

11

12

12

12

14

16

16

15

14

12

11

11

11

12

12

12

11

11

10

10

10

1111

10

10

10

10

10

109.6'

Mean

50.9

64.3

76.2

143

55. C

112

142

204

219

134

27.0

9.77

91.9

Sept.

8.4

8.4

9.2

8.8

7.7

7.4

7.4

7.4

7.4

7.4

7.7

8.0

9.0

7.7

7.7

7.7

8.8

9.6

10

11

10

10

10

1111

12

14

17

16

17

_-

Runoff in 

acre-feet

3,130

3,830

4,'680

103,700

3,380

6,2OO

8,750

12,160

13,470

8,000

1,660

583

66,550
88 SALMON FALLS CREEK BASIN

Salmon River Canal Co. reservoir near Rogerson, Idaho

Location.- Staff gage at dam on Salmon Falls Creek, lat. 42"13', long. 114°44', in sec. _

 IV, T. 14 S., R. 15 E., 10 miles west of Rogerson. Datum of gage is 4,990.0 feet above 

mean sea level (surveys of Salmon River Canal Co.).

Records available.- January 1922 to September 1947.

Extremes.- Maximum contents observed during year, 48,800 acre-feet May 9-12 (gage height, 

au.U reet); minimum observed, 5,335 acre-feet Sept. 30 (eage height, 4.1 feet).

19P9-47: Maximum contents observed, 193,700 acre-feet May 30, 31, 1922 (gage 

height, 61.1 feet); minimum observed, 135 acre-feet Sept. Rl to Oct. 5, 1934 (gage 

height, 0.1 foot).

Remarks.- Reservoir is formed by gravity-section concrete-arch dam completed in 1911;

 storage began in 1910. Capacity, 182,650 acre-feet between gage heights 0.0 foot 

(bottom of outlet tunnel) and 80.0 feet (maximum operating level). Dead storage unknown. Water is used for irrigation of lands in Salmon River Canal Co. project. 

Figures given herein represent usable contents. Gage read once daily.

Cooperation.- Gage readings and capacity table furnished by Salmon River Canal Co.

Contents, In acre-feet, water year October 1946 to September 1947

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

89

30

31

Oct.

14,550

14,550

14,700

14,700

14,700

14,700

14,700

14,700

14,700

14,700

14,700

14,700

14,700

14,700

14,700

14,850

14,850

15,000

15,000

15,150

15,150

15,300

15,450

15,600

15,750

15,900

16,050

16,200

16,350

16,500

16,650

Nor.

16,800

16,800

16,800

16,800

16,800

16,800

16,800

16,800

16,950

16,950

16,950

17,100

17,100

17,250

17,400

17,400

17,400

17,400

17,400

17,550

17,550

17,700

17,700

17,850

17,850

17,850

18,000

18,000

18,150

18,300

-

Dec.

18,460

18,620

18,940

19,100

19,100

19,260

19,420

19,580

19,740

19,900

20,060

20,060

20,220

20,220

20,380

20,380

20,540

20,540

20,700

20,860

21,020

21,180

21,340

21,500

21,670

21,840

22,010

22,180

22,180

22,350

22,350

Jan.

22,520

22,520

22,690

22,690

22,690

22,690

22,860

22,860

22,860

22,860

22,860

22,860

22,860

22,860

23,030

23,030

23,030

23,200

23,200

23,200

23,200

23,200

23,370

23,370

23 . 370

23,370

23,370

23,540

23,540

23,540

23,710

Feb.

23,710

24,050

24,390

24,560

24,730

24,900

24,900

25,070

25,240

25,410

25,580

25,750

25,920

26,090

26,260

26,430

26,600

26,770

26,940

27,110

27,280

27,450

27,620

27,790

27,960

28,130

28,470

28,640

_

-

-

Mar.

28,980

29,320

29,660

30 , 000

30,340

30,510

30,850

31,020

31,190

31,360

31,530

31,700

31,880

32,070

32,070

32,260

32,440

32,810

33,180

33,550

33,740

33,740

33,920

33,920

34,290

34,660

35,030

35,400

35,770

36,140

36,320

Apr.

36,700

36,880

37,250

37,440

37,620

38,180

38,730

39,100

39,470

39,840

40 , 400

40,580

40,760

40,950

41,140

41,320

41,690

41,880

42,240

42,620

43 , 000

43,400

43,800

44,200

44,600

45,000

45,400

45,600

45,800

45,800

-

Hay

45 , 800

46,600

46 , 800

47,200

47,400

47 , 800

48 , 200

48,600

48,800

48,800

48 , 800

48,800

48,600

48,400

48,200

48,000

47,600

47,200

46 , 800

46 , 400

46 , 000

45,800

45,600

45,400

45,000

44,600

44,000

43,600

43,200

42 , 800

43,000

June

43,200

43,600

44,000

44,400

44,800

45 , 200

45,400

45,600

45,600

45,800

46 , 000

46,400

46,600

46,800

47 , 000

47,200

47,400

47,200

47,000

46 , 800

46,400

46,000

45,600

45 , 200

44,800

44,200

43,600

43,000

42,430

41,880

-

July

41,320

40,760

40,210

39,470

39,100

38,540

38,180

37,440

36,700

35,770

34,840

33,920

33,000

32,070

31,190

30,340

29,490

28,640

27,790

26 , 940

' 26,260

25,410

24,730

24,050

23,370

22,860

22,180

21,500

20,860

20,220

19,580

Aug.

18,940

18,300

17,700

16,950

16,350

15,750

15,000

14,250

13,510

12,780

12,070

11,640

10,910

10,180

9,605

9,025

8,300

7,720

6,995

6,145

6,145

6,145

6,145

6,145

6,145

6,145

6,145

6,145

6,145

6,145

6,145

Sept.

6,145

6,145

6,145

6,145

6,145

6,145

6,145

6,280

6,280

6,280

6,280

6-.280

6,280

6,145

6,145

6,145

6,010

6,010

6,010

6,010

5,875

5,875

5,740

5,740

5,740

5,605

5,605

5,470

5j470

5,335

-

Monthly gage height and contents, water year October 1946 to September IE'47

Date

Calendar year 1946 ....

Sept. 30. ................

Water year 1946-47....

Gage height 

(feet)

-

23 5

28 5

4.1

-

Contents 

(acre-feet)

-

5,335

-

Change In conterts 

during month 

(acre -feet)

-12,130

+4 930

-810

-9,215
SALMON FALLS CREEK BASIN

Salmon River Canal Co. canal near Rogerson, Idaho

Location.- Water-stage recorder, lat. 42°15', long. 114°45', in sec. 7, T. 14 S., R

 Ib E., half a mile downstream from Salmon River Canal Co. reservoir and 7 miles 

west of Rogerson.

Records available.- April 1937 to September 1947.

Extremes.- Maximum discharge during year, 441 second-feet July 11 (gage height, 6.16

 i'eet); no flow during long periods.

1937-47: Maximum discharge, 660 second-feet July 20-24, 1944; no flow during long 

periods in each year.

Remarks.- Records good. Canal diverts from Salmon River Canal Co. reservoir for irri-

 gation of lands in Salmon River Canal Co. project.

Cooperation.- Gage-height record furnished by Salmon River Canal Co.

Discharge, in second-feet, water year October 1946 to September

Day

1

6 

7

11

13 

14 

15

16

18

21

24

25

26

Oct.

0

0

0

h!6 

his

0

0

0

0 

0 

0

0

0

0

0

Nov.

0

0

0

0

0 

0

0

0

0

0

h!22

h!90 

h27

0

0

0

0

0

0

0

0

0

0

0

-

Dec. Jan. Feb.

Month

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

Calendar year 1946 ......................

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

July 

Augu 

Sept

St. ....................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

339

0

44,742

10,845 

6,115

28,055

May

0

0

0

0

0

0 

0

0

225

335

353

354 

352 

352 

355

355

341

323

310

310

307

304

312

303

315

327

330

330

303

194

0

Maximum

0

577

438 

319

438

June

0

0

0

0

0

0 

0

70

0

0

0

0 

0 

0

0

0

131

197

198

196

227

265

263

275

304

320

325

328

341

287

-

Minimum

0

270 

0

0

July

286

276

275

270

274

276 

322

379

396

397

419

438 

436 

433

417

403

403

398

380

36O

358

353

333

322

322

322

323

322

322

316

314

Aug.

308

312

308

312

316

315 

317

318

319

317

317

317 

316 

314 

308

307

308

288

h265

h233

0

0

0

0

0

0

0

0

Mean

0

IP*

350 

197

76.9

Sept.

Runoff in 

acre-feet

0

88,750

El, 510 

12,130

55,640

h Computed from staff-gage readings and time of gate changes. 

881401 O - 50 - 7
90 MUD LAKE BASIN

Mud Lake near Terreton, Idaho

Location.- Water-stage recorder, lat. 43°53' , long. 112°24', in SW£ see. 1, T. 6 N., R. 

J q E., 2 miles north of First Owsley pump house, 2f miles northeast of Terreton, and 

14 miles southwest of Haraer; supplemental staff gage at pump house. Datum of each 

gage is 4,775.33 feet above mean sea level.

Records available.- April 1921 to September 1947.

Extremes.- Maximum contents during year, 45,300 acre-feet May 2 (gage height, 8.58 feet)- 

minimum, 7,990 acre-feet Oct. 7 (gage height, 1.94 feet).

1921-47: Maximum contents observed, 61,660 acre-feet May 5, 1923 (gage height, 9.21 

feet); practically no contents Oct. 1 to Nov. 15, 1937 (at 4 p.m. Nov. 15 water was 

released from Camas Creak into lake).

Remarks.- Mud Lake is a perched body of water confined by earth dikes and fed by ground 

water and surface tributaries augmented by well flows. For complete description of 

Mud Lake region see Water-Supply Paper No". 818. Water for irrigation is diverted from 

lake by pumping. During low lake stages inflow from Camas Creek may be bypassed 

through Camas Creek diversion canal directly to lake outlet channel leadirg to First 

Owsley pumping plant. Bypass was not used during 1947. Other irrigation diversions 

are made by various means from adjacent lakes and wells and Camas Creek ato.'e lake. 

Area of Mud Lake is varied from time to time by changes in dikes. Figures given herein represent contents above gage height -4.0 feet. Capacity table prepared from 

surveys made by Geological Survey and adjusted for changes in dikes. Figi- winds 

occasionally disturb the recording of lake stages.

Cooperation.- Water-stage recorder inspected by Water District No. 66 and supplemental 

staff-gage readings furnished by Owsley Canal Co.

Contents, In acre-feet, water year October 194b to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

8,410

8,150

8,370

8,310

8,470

8,440

8,180

8,120

8,210

8,310

8,210

8,280

8,310

8,410

8,740

8,870

9,040

9,070

9,140

9,210

9,070

9,180

9,450

9,580

9,280

9,840

9,950

10,100

10,200

10,200

10,400

Nov.

10,800

10,900

11,100

11,300

11,500

11,700

11,900

12,200

12,500

12,900

13,100

13,400

13,600

13,900

14,100

14,400

14,800

14,700

14,900

15,000

15,400

15,700

16,000

16,300

16,500

16,800

16,900

-

-

h!8, 200

-

Dec.

_

h!8, 400

-

-

-

_

-

-

-

-

_

-

h21,300

21,500

21,500

21,900

21,900

22,200

22,600

22,800

23,000

23,200

23,400

23,600

23,800

24,000

24,200

24,400

24,600

24,700

24,800

Jan.

_

_

-

_

-

_

_

-

h27,200

-

.

-

-

-

-

_

h29,100

-

_

h29,500

_

_

-

_

-

.

-

_

-

-

h31,700

Feb.

h32,OOO

_

-

_

-

h52,003

_

-

h32,900

h33,200

_

-

h33,900

h34,100

-

_

_

-

_

h35,000

.

h35,200

-

_

-

_

-

h36,500

_

-

-

Mar.

_

.

_

.

-

_

h36,900

-

_

-

_

37,500

37 , 500

37,700

37,800

37,900

38,000

38 , 300

38,500

38,700

38,800

38,900

39,100

39,300

39,400

39,800

39,700

39,800

39,900

39,900

39,900

Apr.

40 , 000

40,300

40,500

40,700

40,800

40,800

40,900

41 , 000

4 1 , 00 3

41,200

41,300

41,300

41,400

41,600

41,900

41,700

41,800

41,900

42,000

42,200

42 , 500

43,000

43,103

43,400

43,500

43,800

44,200

44,700

44,700

44,900

-

" May

45,200

45,200

45,100

45,000

44,800

44,700

44,400

43,900

43,500

43,400

43,500

43,500

43,400

43,500

43,600

43,500

43,500

43,500

43,600

43,500

43,700

43,600

43,400

43,200

43,000

42,700

42,500

42,100

41,400

41,000

40,800

June

40,400

40,200

40,000

39,600

39,300

38,800

38,500

38 , 000

37,900

37,700

38,000

37,600

37,500

37,600

37,700

37,700

37,700

37,500

37,200

36,900

36,700

35,900

35,600

35,300

35,000

34,300

33,800

33,600

33,200

32,800

-

July

32,400

32,000

31,500

31,000

30,500

29,900

29,300

28,700

28,200

27,700

27,000

26 , 500

25,800

25,100

24,600

24,000

23,600

23,100

22,600

22,100

21,600

21,100

20,500

19,800

19,200

18,900

18,500

18,100

17,600

17,100

16,600

Aug.

16,100

15,600

15,200

14,700

14,400

14,200

14,000

13,700

13,300

13,200

12,900

12,600

12,600

12,400

12,200

12,000

11,900

11,900

11,700

11,600

11,600

11,300

11,303

11,300

11,300

11,300

11,200

11,100

11,100

11,100

hll.100

Sept.

.

_

_

_

-

10,600

10,300

10,400

10,200

10,300

10,300

10,300

10,300

10,300

10,200

9,950

10,200

10,200

10,100

10,100

9,950

9,950

9,880

9,810

9,770

9,740

9,700

9,670

9,630

9,560

-

h Computed staff-gage reading at recorder site 

affected by pump operation.

from supplemental staff-gage reading when not

Monthly gage height and contents, water year October 1946 to September 1947

Date

Calendar year 1946...

Aue 31

Sept. 30. ...............

Water year 1946-47...

Gage height 

(feet)t

-

2.39

-

Contents 

(acre-feet)

8,440

18,200

-

32,600

16,300

9,490

-

Change In contents 

during month 

(acre-feet)

_

+7,700

-7,300

+4,800

-8.00C

-16.30C

-5,200

-1,610

+1,050

t Gage height at 12 p.m.
MUD LAKE BASIN 91

Camas Creek at Eighteenmile shearing corral, near Kilgore, Idaho

Location.- Water-stage recorder, lat. 44°I8', long. 111°52', in sec. 7, T. 1] N., R. 39 E. 

at bridge on c.ounty road at Eighteenmile shearing corral, Just downstream from West 

Camas Creek, 7 miles south of Kilgore, and 18j miles northeast of Dubois.

Drainage area.- 210 square miles.

Records available.- May 1937 to September 1947 (no winter records prior to 1947).

Extremes.- Maximum discharge during year, 619 second-feet May 10-, maximum gage height, 

4.85 reet Apr. 26 (ice jam); minimum discharge recorded; 17 second-feet Oct. II, but 

may have been less during period of no gage-height record in winter.

1937-47: Maximum discharge 1,340 second-feet Apr. 21, 1946 (gage height, 6.08 feet), 

from rating curve extended above 500 second-feet; minimum recorded, 0.7 second-foot 

Aug. 19, 1940.

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

which are poor. Diversions above and below station for irrigation and stock water.

Cooperation.- Water-stage recorder inspected by Water District No. 66.

Discharge, in second-feet, water year October 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

30

48

57

44

38

34

33

32

32

31

30

32

34

34

34

38

38

36

36

34

*33

34

38

40

37

38

38

36

36

36

36

Nov.

35

35

35

35

35

35

34

34

34

34

34

34

36

37

38

38

37

37

' 35

-

Dec.

> 35

(*)

. 25

Jan.

> 20

Feb.

 20

_

_

-

Month

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

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

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

Calendar year ......................

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

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

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

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

May

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

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

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

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

Water year 1946 47 ......................

Mar.

> 20

Apr.

,

> 35

' (*) 1

' 25

1

45

65

85

100

120

150

200

300

330

330

370

470

500

471

471

*450

397

-

Secondfcot-days

1,127

1,057

935

.

620

560

705

5,309

10,507

6,179

1 '771 192

781

29,743

May

328

295

300

409

468

483

489

513

562

T9T

528

538

507

519

483

368

309

281

265

252

236

220

210

192

180

168

161

166

175

156

152

Maximum

57

38

_

_

^

500

594

432

71

30

41

594

June

r 241 320

273

270

276

254

218

202

262

420

432

365

270

220

188

166

152

161

152

143

218

210

140

116

99

89

85

81

79

77

-

Minimum

30

-

.

_

_

_

152

77

26

19

20

-

July

71

62

54

48

42

42

38

37

37

38

38

37

a37

a37

a37

a37

a37

a36

a36

a 36

a 36

a36

a36

36

36

34

31

30

28

26

26

Aug.

26

26

26

28

30

30

28

28

26

24

26

28

26

24

22

20

20

19

20

22

24

26

26

26

26

24

24

24

24

24

24

Mean

36.4

35. £ 

30. £

.

20. C

20.0

22.7

177

339

206

38.5

24.9

26.0

81.5

Sept.

22

22

22

20

20

20

20

20

20

22

22

22

22

22

22

k!2

26

36

41

34

31

30

28

28

28

28

36

34

31

30

Runoff in 

acre-feet

2,240

2,100

1,850

.

1,230

1,110

1,400

10,530

20,840

12,260

2,360

1,530

1,550

59,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for station at 

Camas and nearby streams.

Note.- Stage-discharge relation affected by ice Oct^ 30 to Nov. 6, Nov. 8-14, Nov. 19 to Apr. 26 

(no gage-height record Dec. 17 to Apr. 20 except staff-gage readings Feb. 6 and Mar. 13; discharge 

computed on basis of 2 discharge measurements, weather records, and records for stations on nearby 

streams ) -
92

Camas Creek at Camas, Idaho

Location.- Water-stage recorder, lat. 44°00', long. 112°13', in E|SE£ sec. 21, T. 8 N., R. 

3t> E., 350 feet upstream from Oregon Short Line Railroad bridge at Camas and half a 

mile upstream from Beaver Creek.

Records available.- April 1925 to September 1947. 

Average discharge.- 21 years (1926-47), 23.4 second-feet.

Extremes.- Maximum discharge during year, 524 second-feet Apr. 27 (gage height, 4.83 feet); 

no now at times.

1925-47: Maximum discharge, 900 second-feet probably on May 3, 1938 (gage height, 

3.98 feet, datum then in use, from floodmark), from rating curve extended above 400 

second-feet; no flow June 1-7, 1926, and many periods during 1930-47.

Remarks. - Records good except those below 10 second-feet, which are fair, an<? those for 

periods of ice effect or no gage-height record, which are poor. Diversiors above and 

below station for irrigation and stock water.

Cooperation.- Gage-height record collected 'in cooperation with Water District No. 66 and 

seven winter field estimates furnished by that district.

Ratine tables, water year 1946-47, except periods of Ice effect 

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

1.8 1.0

1.9 2.8

2.0 5.6

2.1 9.7

Oct. 1 to Apr. 26

2.2 15

2.3 22

2.5 41

2.7 66

Apr. 27 to Sept. 30

3.0 111

3.5 205

4.0 313

4.5 436

0.2

.8

1.7

3.1

1.9 5.2

2.0 S.2

2.2 17

2.4 31

Note.- Same as preceding 

table above 2.4 feet.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.9

2.4

5.3

15

15

11

8.9

7.6

7.2

4.8

4.5

5

5

5

5

5.6

6.4

8.1

6.8

6.0

5.6

4.2

4.8

11

12

11

11

14

12

10

9.7

Nov.

12

12

6.4

11

16

14

> 15

f!7

f!5

> 17

-

Dec.

17

17

21

17

16

*17

13

(*)

Jan.

 11

(*)

(*)

Feb.

(*)

(*)

11

(*)

(*)

-

_

-

Month

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

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

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

Calendar year 1946 ......................

January

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

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

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

Bay. .......................................

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

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

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

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

Water year 1946-47 ......................

Mar.

12

13

13

14

15

*16

18

20

*25

28

30

35

37

36

35

33

31

28

24

22

20

21

23

30

42

Apr.

42

56

45

48

37

34

28

27

25

23

24

23

24

29

51

70

86

106

123

152

239

271

249

295

365

413

413

390

348

324

Secondfoot days

241 . 8

459 4

466

18,796.4

341

308

693

4,360

7,314

3,968

274.5

19.2

105.2

18,550.1

May

287

243

218

230

291

311

313

'315

331

368

388

355

365

338

343

295

241

213

203

191

183

169

152

142

132

123

116

114

113

120

111

Maximum

15

t

741

_

42

413

388

271

37

2.1

16

413

June

111

159

189

169

169

171

156

141

139

187

271

262

211

169

142

126

113

106

105

103

103

137

123

92

73

65

54

45

39

38

Minimum

1.9

6.4

0

_

_

23

111

38

1.3

0

0

0

July

37

30

27

23

20

15

12

11

8.2

8.2

7.0

5.5

6.1

4.8

4.2

3.7

3.5

1.3

1.4

4.6

5.0

5.2

3.3

2.5

3.7

4.4

3.9

3.5

3.5

3.5

2.5

Aug.

0.7

.7

.9

1.2

1.3

1.3

1.6

2.1

1.5

2.0

2.0

0

0

1.6

2.1

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

7 . 80

15.3

15.0

51.5

11-0

11.0

22.4

145

236

132

8.85

.62

3.51

5C.8

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.7

4.2

16

14

10

9.0

7.6

7.3

6.7

6.1

7.0

9.3

7.3

Runoff in 

acre-feet

480

911

924

37,280

676

611

1,370

8,650

14,510

7,870

544

38

209

36,790

» Winter discharge measurement or field estimate made on this day.

f Computed on basis of partly estimated gage height.

Hote.- Stage-discharge relation affected by Ice about Nov. 29 to Dec. 1, Dec. 10 to about Mar. 25. 

No gage-height record Oct. 12-15, Nov. 7-15, 18-29, Dec. 6-9, Dec. 13 to Feb. 3, Pet. 5 to Mar. 11, 

Mar. 13-18, 20-26, Aug. 11; discharge computed on basis of weather records, 7 field estimate?, and 

records for nearby streams.
MUD LAKE BASIN 93

Beaver Creek at Spencer, Idaho

Location.- Staff gage, lat. 44°21', long. 112-11', In lffi£ sec. 23, T. 12 N., R. 36 E., at 

highway bridge, 0.4 mile southeast of Spencer post office and 2^ miles upstream from 

Rattlesnake Creek.

Drainage area.- 120 square miles.

Records available.- October 1940 to September 1947 (no winter records 1942-47).

Extremes.- Maximum discharge observed during year, I92~secohd-feet May 14; maximum gage 

height observed, 5.13 feet, Mar. 14 (ice jam); minimum discharge observed, 5.0 secondfeet Oct. 1.

1940-47: Maximum discharge observed, 408 second-feet Apr. 13, 1942, from rating 

curve extended above 140 second-feet; maximum gage height observed, 5.95 feet Mar. 30, 

1943 (ice jam); minimum discharge observed, 0.5 second-foot Jan. 26, 1942, Feb. 22, 

1944.

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

which are poor. Gage read once daily Oct. 1-27, twice daily Mar. 13 to Sept. 30. Several ranch diversions above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

s.o

110

111

66

24

21

18

17

16

d25

26

28

26

22

22

29

26

24

22

22

21

21

22

22

21

23

24

a24

a24

a24

a24

Nov. Dec. Jan. Feb.

Month

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

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

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

Calendar year ......................

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

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

March 14-31 ................................

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

May

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

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

Augnst

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

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

Mar.

_

_

_

-

_

-

-

_

-

_

-

-

*bll

a!5

a25

a37

a 54

*b65

alOO

alls

allO

106

84

84

74

69

52

dlOO

112

90

Apr.

95

79

84

d70

d50

d50

d50

d50

d50

37

48

44

148

161

168

142

148

142

136

112

106

101

112

112

106

112

112

112

112

112

-

Secondfoot-days

910.0

-

_

1,303

2,961

3,545

3,164

998

396.0

488

-

May

110

112

116

120

126

127

124

127

128

d!40

d!45

d!60

d!90

186

148

124

112

112

108

102

91

d6

86

dl

82

77

82

88

86

78

91

Maximum

111

_

_

115

168

190

141

72

20

27

-

June

112

112

136

124

120

d!05

d!20

d!30

d!40

141

138

117

101

97

88

93

93

94

85

120

141

118

93

86

83

75

75

75

76

76

-

Minimum

5.0

-

_

37

77

75

15

9.0

10

-

July

72

58

46

34

30

30

30

32

58

52

41

30

25

25

27

38

38

27

24

28

31

31

25

26

26

22

21

20

19

17

15

Aug.

14

14

14

14

13

13

12

11

11

18

15

14

11

11

11

10

9.0

9.0

9.0

10

20

17

15

15

15

15

12

12

11

11

10

Mean

29.4

-

_

72.4

98 . 7

114

105

32.2

12.8

16.3

-

Sept.

10

12

12

12

12

12

12

12

12

12

13

13

13

13

13

14

20

27

24

22

21

20

18

17

16

21

24

22

20

19

-

Runoff in 

ao re-feet

1,800

-

_

2,580

5,870

7,030

6, 280

1,980

785

968

-

* Winter discharge measurement made on this day.

a Mo gage-height record; discharge computed on basis of weather records and records for stations 

at Dubols and at Camas.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed on basis of weather records and records for nearby stream.
94 MUD LAKE BASIN 

Beaver Creek at Dubois, Idaho

Location.,- Water-stage recorder, lat. 44°11' , long. 112°14', in NVf£ sec. 21, T. 10 N.,

 R. 36"E., half a mile north of Dubois.

Drainage area.- 220 square miles.

Records available.- April 1921 to September 1947.

Average discharge^- 20 years (1921-24, 1928-29, 1931-47), 16.1 second-feet.

Extremes.- Maximum discharge during year, 175 second-feet sometime between May 11-13.

 computed from recorded range in stage; maximum gage height, 4.83 feet Mar 18 (ice 

jam); minimum recorded, 4.4 second-feet sometime between Oct. 23 and Nov. 1 (gage 

height, 0.67 feoot).

1921-47: Maximum discharge, 858 second-feet Apr. 7, 1930; maximum gage height, 

about 6.5 feet M^r, 16, 1926; no flow during long periods.

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

which are poor.

Cooperation.- Six field estimates furnished and water-stage recorder inspected by Water 

District No. 66.

Discharge, in second-feet, water year October 1946 to September 1947

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.

6.2

90

90

50

17

15

12

11

11

14

17

18

16

15

15

18

18

17

15

15

15

14

15

15

14

16

Nov.

8.5

' 20

26

> 25

24

24

-

Dec.

' 24

(*)

14

> 15

(*)

Jan.

> 12

(»)

(»)

Feb.

(*)

(*)

12

(*)

(*)

-

-

Month

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

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

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

Calendar year 1946 ......................

January

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

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

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

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

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

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

August ........'.............................

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

Water year 1946-47 ......................

Mar.

15

16

17

20

23

*28

30

35

*40

50

60

80

*93

100

105

103

86

60

44

47

39

40

50

84

105

Apr.

77

79

63

52

37

46

39

40

39

42

39

38

43

101

138

134

124

122

106

105

114

97

77

74

73

73

76

81

84

83

Secondfoot-days

649.2

672.5

599

10,625.1

372

336

1,460

2 )296

2 954

2 , 317

596.0

222 . 5

308 1 2

12,782.4

May

77

77

86

101

106

106

108

116

124

130

130

140

150

142

124

106

99

93

90

84

79

76 ,

73

69

65

60

59

83

74

62

65

Maximum

90

-

196

105

150

130

40

13

21

150

June

108

90

88

90

85

80

75

80

130

128

126

101

79

69

63

60

60

71

60

66

105

90

66

59

52

48

47

47

48

46

Minimum

6.2

-

_

37

60

46

8 .8

4.9

6.0

-

July

40

33

29

26

25

24

20

18

24

30

26

21

18

16

15

14

18

18

15

15

17

18

IS

18

17

14

12

10

9.1

8.8

9.1

Aug.

6.6

7.9

7.3

7.0

7.9

7.6

6.6

6.2

5.5

5.3

5.5

10

8.5

7.6

6.8

6.4

6.0

5.5

5.3

4.9

6.2

13

10

S.8

7.9

7.0

6.8

7.0

6.6

6.4

6.2

Mean

20.9

22.4

19.3

29.1

12.0

12.0

47.1

76.5

95.3

77.2

19 2

7 . 18

10.3

35.0

Sept.

6.0

6.0

6.4

6.6

6.8

6.6

6.0

6.2

7.0

7.6

9.1

9.1

S.8

8.5

8.5

10

io

16

21

16

14

12

11

11

11

11

16

14

13

13

Runoff in 

acre-feet

1,290

1,330

1,190

21,070

738

666

2,900

4,550

5,860

4,600

1,180

442

611

25,360

* Winter discharge measurement or field estimate made on this day.

Note.- Stage-discharge relation affected by Ice about Dec. 8-11, Dec. 17 to Mar. 21. No gagehelght record Oct. 2-20, Oct. 23 to Mar. 12, May 11-13, June 3-9, July 18-21, except for staff-gage 

readings Oct. 15, 20, Nov. 1, 14, 29, Dec. 10, 16, Feb. 4, Mar. 12; discharge comput?d on basis of 

weather records, 6 field estimates, and records for Beaver Creek at Spencer and Carnai Creek at Camas.
MUD LAKE BASIN 95

Beaver Creek at Camas, Idaho

Location.- Staff gage, lat. 44°01', long. 112°14', in NE£ sec. 21, T. 8 V., R. 36 E., 

a quarter of a mile northwest of Oregon Short Line Railroad station at Camas and 

three-eighths of a mile upstream from mouth.

Records available.- April 1921 to September 1947.

Extremes.- Maximum discharge observed during year, 104 second-feet Mar. 20 (gage height, 

U . fc>4 feet); no flow most of year.

1921-47: Maximum discharge observed, 163 second-feet Apr. 7, 1930; usually no 

flow past station except for short period in spring of each year; none passed station 

during years 1931-36, 1940.

Remarks.- Records good except those below 10 second-feet and those for periods of no 

gage-height record, which are fair. Flow affected by irrigation diversions above 

Dubois, about 14 miles above station, and by heavy channel losses below Dubois.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

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

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

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

Calendar year 1946 ......................

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

February. .........................'.........

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

a 10

18

33

50

79

91

93

89

70

54

37

38

24

24

28

42

66

Apr.

56

51

51

34

19

29

19

22

18

19

22

15

14

18

57

81

73

68

65

56

62

69

50

43

41

37

33

35

36

35

Secondfoot-days

0

0

0

1,820

0

0

846

1,227

1,033

910.6

.5

0

0

4,007.1

May

32

27

19

22

27

28

28

37

42

49

54

66

71

76

61

52

44

40

38

32

32

29

25

23

20

8.1

2.4

5.1

13

11

9.4

Maximum

0

0

0

82

0

0

93

81

76

56

.5

0

O

93

June

26

44

a38

a37

a38

a35

a 30

a33

a40

a55

56

49

40

31

27

25

31

34

47

55

48

37

23

13

8.8

3.3

2.1

1.1

0

3.3

Minimum

0

0

0

0

0

0

0

14

Z.4

0

0

0

0

0

July

0.5

0

0

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

0

0

0

4.99

0

0

27.3

40.9

33.0

30.4

.02

0

0

11.0

Sept.

Runoff in 

acre-feet

0 _

0

0

3,610

0

0

1,680 

2,430

2,030

1,810

1.0

O

0

7,950

a No gage-height record; discharge computed on basis of weather records and records far station-at 

Dubois and Camas Creek at Camas.
96 MUD LAKE BASIN

Medicine Lodge Creek at Bills Ranch, near Argora, Idaho

Location.- Water-stage recorder, lat. 44°17' long. 112°30', in sec. 7, T. 11 N., R. 34 

K., 4 miles upstream from Middle Creek, 6t miles southeast of Argora, and 17 miles 

northwest of Dubois.

Records available.- October 1940 to September 1947.

Extremes.- Maximum discharge during year, 201 second-feet Mar. 15 (gage height, 3.98

t'eet), from rating curve extended above 120 second-feet by logarithmic plotting; minimum, 10 second-feet Dec. 17 (gage height, 1.08 feet).

1940-47: Maximum discharge, 229 second-feet June 9, 1944 (gage height, 4.23 feet), 

from rating curve extended above 120 second-feet by logarithmic plotting; minimum, 9 

second-feet Dec. 12, 1940.

Remarks.- Records good. Several diversions above and below station for irrigation.

Discharge, In second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

45

54

48

48

48

48

49

49

49

48

46

a45

a45

a45

a45

a43

a42

a42

a42

42

40

40

40

40

40

40

38

38

36

35

35

Nov.

34

34

33

36

36

37

39

45

50

49

 5C

48

48

49

50

49

48

48

50

57

47

49

50

50

48

50

48

48

48

48

-

Dec.

48

48

46

46

46

a47

a46

a46

a45

45

45

45

45

44

44

36

15

13

15

18

23

32

35

46

46

47

47

27

28

22

20

Jan.

21

18

14

14

14

15

16

18

20

23

26

32

35

33

26

22

23

24

25

26

28

33

40

50

52

56

46

32

35

29

28

Feb.

29

40

52

50

50

48

40

24

23

26

32

48

49

47

48

48

47

46

46

45

46

45

46

46

45

28

30

29

-

-

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

July

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

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

Water year 1946-47 ................. ....

Mar.

25

33

44

48

46

45

46

45

45

46

46

46

52

62

105

107

98

94

85

74

68

62

57

54

53

54

52

53

54

54

48

Apr.

45

45

44

42

41

41

41

44

42

42

40

41

41

41

44

41

40

39

39

36

38

37

36

36

36

37

37

37

37

36

-

Secondfcot-days

1,345

1,376

1,156

16,831

874

1,153

1,801

1,196

1,646

2,215

1 954

1^820

1,486

18,022

May

36

36

35

36

36

38

36

34

32

35

68

68

6560 '

58

58

56

56

57

56

54

55

60

64

65

66

66

69

64

63

64

Maximum

54

57

48

72

56

52

107

45

69

88

68

66

57

107

June

64

68

72

71

72

71

67

79

85

80

88

80

80

77

76

79

80

80

76

79

76

71

69

67

67

67

68

69

69

68

-

Minimum

35

33

13

13

14

23

25

36

64

58

54

46

13

July

68

68

65

65

65

63

58

59

67

65

64

65

63

60

68

66

65

64

64

63

64

64

63

61

58

58

58

58

62

62

61

Aug.

63

62

61

61

62

60

58

61

60

62

54

32

59

59

58

57

56

55

54

56

59

66

59

58

57

56

56

56

55

54

54

Mean

43.4

45 .9

37.3

46.1

28 2

41 '.2

39 9

53.1

73 8

63.0

58 .7

49.5

49.4

Sept.

54

53

52

52

52

50

50

50

50

50

50

50

50

49

50

48

50

57

50

50

49

47

47

47

47

48

46

46

46

46

-

Runoff in 

acre-feet

2 , 670

2,730

2,290

33,380

1,730

2,290

3,570

2,370

3,260

4,390

3^610

2,950

35,740

a Ho gage-height record; discharge computed on basis'of weather records, recorded range in stage, 

and records for station near Small.
MUD LAKE BASIN 97

Medicine Lodge Creek near Small, Idaho

Location.- Water-stage recorder, lat. 44°16', long. 112°25', in NW^ sec. 25, T. 11 N., R. 

34 E., 400 feet west of H. W. Small's ranch house, 1 mile downstream from Indian Creek, 

4 miles northwest of Small, and 11 miles northwest of Dubois.

Drainage area.- 270 square miles.

Records' available.- April 1921 to December 1923, October 1940 to September 1947.

Extremes.- Maximum discharge during year, 211 second-feet Mar. 16; maximum gage height 

recorded, 6.49 feet Pet). 13 (ice jam); minimum discharge not determined, occurred 

during period of ice effect.

1921-23, 1940-47: Maximum discharge recorded, 265 second-feet June 9, 1944, from 

rating curve extended above 150 second-feet; maximum gage height ^recorded, that of 

Feb. 13, 1947; minimum observed, 8 second-feet Dec. 14, 1940 (discharge measurement).

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

which are poor. Many small diversions above and below station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

?R

29 

30

31

Oct.

48

60

54

53

54

56

56

56

56

56

55

54

54

F4

55

52

50

50

50

50

48

47

47

48

48

50

48

48

46 

44

43

Nov.

44

43

42

45

46

47

48

52

56

55

56

52

53

56

55

54

53

52

57

64

54

52

55

54

51

53

53

b3

53 

51

-

Dec.

51

52

51

51

53

56

52

55

54

*54

53

53

52

52

53

49

20

40

1 30

)

Jan.

20

35

I

45

1 30

'

Feb.

*4o

\ "

62

64

62

62

62

62

60

60

58

59

59

65

60

56

30

30

30

-

Month

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

Calendar year 1946 ......................

March. .................:...................

May................................ ._......

September. :................................

Water year 1946-47 ...... ..........'.....

Mar.

30

30

54

60

56

56

56

56

56

56

57

*f59

69

77

106

123

112

100

97

84

78

71

66

61

58

60

57

59

60 

64

60

Apr.

55

57

56

55

50

52

51

54

55

55

52

52

55

59

60

58

57

58

57

56

57

59

56

56

56

58

60

61

63 

63

-

Seoondfoot-days

1,311

21,070

1,534

21,754

May

61

63

66

68

69

71

70

67

65

66

90

106

100

93

88

88

85

85

85

85

82

82

80

92

92

92

92

94

90 

84

84

Maximum

56

118

61

123

June

84

65

90

90

90

88

85

100

105

100

h!09

100

100

96

96

100

100

100

95

100

95

90

86

84

84

84

84

85

85 

82

Minimum

43

_

3C

47

'

July Aug.

84 72

84 71

80 70

80 70

80 70

76 68

72 66

75 69

85

82

80

80

80

77

84

82

81

80

81

80

80

80

79

77

73

72

72

71

73 

73

72

67

68

73

69

66

66

64

63

61

60

59

59

65

73

66

64

63

60

57

56

56 

55

55

Mean

51 .3

4?. 3

5'. 7

47.7

82.1

92 4

51.1

59.6

Sept.

54

53

52

52

52

52

52

52

52

52

52

51

50

50

50

50

51

61

53

51

50

48

48

48

47

50

51

50

50 

50

-

Runoff in 

acre-feet

-3,150

3,090

2,600

41,790

1,790

2,650

4,140

5,050

4,810

3,040

43,150

* Winter discharge measurement made on this day.

f Computed from partly estimated gage-height record.

h Computed from staff-gage reading.

Note.- Stage-discharge relation affected by ice Nov. 2-4, lo, 21, Dec. 17 to Feb. H, Feb. 26 to 

about Mar. 10; no gage-height record Jan. 26, Jan. 31 to Feb. 4, Feb. 7-11, 15-20, Pet. 28 to Mar. 

11, May 13 to June 10, June 12 to July 22; discharge computed on basis of records for station near 

Argora and nearby streams.
98 LITTLE LOST RIVER BASIN

Little Lost River near Howe, Idaho

Location.- Water-stage recorder, lat. 43°53', long. llS'Oe 1 , in sec. 3, T. 6 N., R. 28 E., 

a quarter of a mile upstream from diversion dam of Blaine County Investment Co , 6 

miles northwest of Berenice, and 7 miles northwest of Howe.

Records available.- April 1921 to September 1947 (no winter records).

Extremes.- Maximum discharge during year, 174 second-feet June 12, 17, 18, 21-23; maximum 

gage height observed, 6.00 feet Feb. 3 (ice jam); minimum discharge recorded, 33 second-feet Dec. 28, but may have been less during periods of ice effect or no record in 

winter.

1921-47: Maximum discharge, about 450 second-feet Aug. 11, 1936, during cloudburst 

(gage height, 3.1 feet, datum then in use, from floodmarkj, from rating curT'e extended 

above 100 second-feet; minimum observed, 4.1 second-feet Dec. 12, 1940.

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

wnicn are fair. Many diversions above and below station for irrigation.

Cooperation.- Water-stage recorder inspected by Water District No. 9.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

h81

100

106

100

98

96

96

96

95

98

h95

h96

94

94

94

94

94

94

94

92

92

92

92

92

92

92

92

94

92

85

84

Nov.

81

78

68

69

84

86

89

89

78

73

81

76

62

80

86

76

66

82

B9

92

74

64

78

84

73

75

78

81

82

82

-

Dec.

a65

a65

a65

a75

a75

a75

a65

a65

 60

64

69

75

76

76

76

69

b50

b4o

b43

b45

b45

45

b45

b43

43

44

46

b42

b42

b42

b42

Jan. Feb.

h54

_

-

Month

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

Calendar year ......................

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

Hav

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

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

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

Mar.

.

.

*

-

.

_

_

_

-

_

*71

82

110

138

137

128

132

132

132

124

113

101

98

101

96

94

98

104

107

Apr.

101

101

101

98

92

94

95

92

91

91

91

89

91

97

103

110

112

115

115

113

116

112

109

97

94

96

103

118

124

124

Secondfoo 1-day s

1,772

_

2,558

-

May

124

127

14J150

155

155

157

158

162

163

164

163

161

162

159

159

158

161

162

161

161

162

162

161

161

161

163

167

167

167

167

Maximum

76

_

95

-

June

167

167

168

168

168

168

170

170

171

171

171

172

171

171

171

171

172

172

171

171

172

174

172

171

163

159

158

154

153

145

Minimum

81

40

_

81

-

July

136

131

128

127

127

124

121

120

133

132

127

126

122

120

121

119

116

110

110

107.

107

108

106

109

106

100

95

88

88

88

88

Aug.

86

S3

82

88

89

85

82

80

78

81

86

84

81

80

77

77

80

78

76

76

91

146

116

103

100

94

91

90

89

86

88

Mean

93.7

7?. 5

5'.2

-

_

110

ise

114

85.3

-

Sept.

88

85

84

85

83

82

82

84

86

88.

89

88

85

82

84

84

89

92

95

92

89

86

83

82

81

82

83

82

82

81

-

Runoff in 

acre-feet

5,760

4,670

3,510-

-

_

4,160

5,070

-

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for Big Lost River at Wildhorse, near Chilly, 

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading.
LITTLE LOST RIVER BASIH 99 

Blaine County Investment-Co.'s canal near Howe, Idaho

Location.- Staff gage and Clppolettl Weir, lat. 43°53', long. 1130 05', In NW£NW| sec. 11, 

mm., R. 28 E., 300 yards downstream from head gates and 7 miles northwest of Howe.

Records available.- April 1924 to September 194/'(prior to 1939, Irrigation seasons only).

Extremes.- Maximum discharge observed during year, 65 second-feet June 8-24- (gage height, 

STTETeet); no flow during long periods.

1924-47: Maximum discharge observed. 87 second-feet May 24, 25, 1928; no flow 

during long periods each year.

Remarks.- Records good except those for Hov. 1 to Mar. 20, which are poor. Gage read 

once daily. Canal diverts water from Little Lost River in sec. 2, T. 6 H., R. 28 E. 

for irrigation of lands in project of Blaine County Inventment Co.

Cooperation.- Gage readings fuiwished by Water District No. 9.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

34

41

51

51

51

51

51

51

38

37

32

32

31

36

35

36

35

35

35

35

35

35

55

35

39

48

48

42

42

42

20

Nov.

' 1.0

-

Dec.

0.1

.1

.1

Jan. Feb.

' 0.5

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

liav may ........................................

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

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

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

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

Water year 1946-47 ......................

Mar.

0.5

,3

.

1.0

7.9

15

15

18

18

28

28

40

42

41

46

42

A?/.

44

44

47

49

50

55

52,

50

41

38

35

30

30

30

30

34

37

41

45

43

43

43

3730V

23

20

12

12

20

20

-

Secondfoot-days

1,219

30.0

3.1

5,739.1

0

14.0

353.7

1,085

1,654

1,867

551.8

357.9

509

7,644.5

May

20

28

35

42

48

55

55

55

55

57

57

57

52

55

55

53

54

56

57

57

57

57

58

58

58

58

61

61

61

61

61

Maximum

51

.

55

0

46

55

61

65

35

20

20

65

June

61

61

61

61

61

63

63

65

65

65

65

65

65

65

65

65

65

65

65

65

65

65

65

35

64

59

57

53

53

45

-

Minimum

20

-

0

0

12

20

45

8.7

7.2

13

0

3uly

35

30

26

26

27

24

20

20

20

20

20

20

20

19

19

19

18

a!6

15

15

12

12

12

12

12

12

11

11

11

9.1

8.7

Aug.

S.7

8.7

8.7

8.7

8.7

8.7

8.7

8.3

8.3

8.7

8.7

8.7

8.7

8.7

8,7

7.2

7.2

7.2

7.2

7.2

7.2

16

16

17

18

18

20

20

20

20

a20

Hear

29.3

1.0

.1

15.7

0

.5

.1.4

3S.2

53.4

6?. 2

17.8

11.5

17.0

20.9

Sept.

a20

a20

19

20

20

14

14

14

14

14

14

20

20

20

So

16

13

18

18

18

18

T7

16

16

16

16

16

16

16

16

-

Runoff in 

acre-feet

2,420

60

6.1

11,390

0

28

702

2,150

3,280

3,700

1,090

7 1C

1,010

15,160

a No gage-height record; discharge interpolated.

Note.- Leakage only passing station Nov. 1 to Mar. 19; discharge computed on basis of 3 discharge 

measurements or field estimates and observer's notes.
100 BIG LOST RIVER BASIN

Big Lost River at Wild Horse, near Chilly, Idaho

Location.- Water-stage recorder, lat. 43°56', long. 114°07', in sec. 17, T. 7 N., R. 20 

K., a quarter of a mile upstream from East Fork Big Lost River, 2 miles downstream 

from Wild Horse dam site, and 16 miles southwest of Chilly.

Drainage area.- 114 square miles.

Records available.- March 1944 to September 1947.

Extremes.- Maximum discharge during year, 616 second-feet May 8 (gage height, 4.35 feet); 

minimum, 9 second-feet sometime during period Feb. 4 to Mar. 14 (gage height, 1.15 

feet, from recorded range in stage).

1944-47: Maximum discharge, 622 second-feet June 27, 1944 (gage height, 4.37 

feet); minimum, that which occurred sometime during period Feb. 4 to Mar. 14, 1947.

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

which are fair.

Cooperation.- Water-stage recorder inspected by employee of Water District No. 27.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

46 

94 

 73 

64 

60

56 

53 

52 

49 

48

44 

45 

44 

43

42

41 

41 

41 

39 

39

41 

43 

44 

40 

41

41 

38 

38 

35 

35 

32

Nov.

34 

31 

30 

32 

31

31 

31 

31 

29 

29

31 

25 

27 

32 

29

25 

31 

31 

31 

26

25 

28

31 

26

28

32 

32 

32 

32 

28

Dec.

26 

28 

26 

31 

31

31 

26 

26 

28 

26

28 

29 

29 

29 

29

21 

17 

23 

25 

25

24 

25 

24 

24

26

26 

26 

24 

22 

23 

23

Jan.

24 

23 

23 

25 

25

25 

23 

23 

23 

23

23 

22 

22 

b21 

b!9

b!9 

b!9 

b!9 

19 

20

20 

20

20 

22

22

22 

20 

20 

b20 

b21 

b21

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

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

Lend&r year 1946 .........

ary

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

ter year 1946-47 ..........

Feb.

b21 

21 

21

20

Secondfoot-days

1,442 

891 

801

34,882

668 

563 

765 

2,468 

11,460 

8,948 

5,243 

1,758 

1,018

36,025

Mar.

' 19

*20

20 

22 

24 

26

H8

30 

33 

33 

31 

30

31

30 

32 

35 

38 

36

Maximum

94 

34 

31

480

25

21 

38 

19O 

592 

413 

260 

88 

38

592

Apr.

36 

35 

34 

34 

32

32

32 

32 

32 

32

31 

32 

38 

50 

67

82 

110 

117 

108 

120

123 

118 

116 

111 

107

117 

143 

175 

JL90 

182

May

195 

280 

438 

473

473

483 

532 

592 

565 

457

380 

324 

304 

270 

258

266 

283 

293 

299 

327

353 

368 

332 

330 

356

380 

413 

392 

344 

332 

368

Minimum

32 

25 

17

-

19

31 

195 

190 

88 

39 

31

-

June

374 

368 

341 

300 

280

26O 

260 

321 

335 

296

286 

266 

266 

276 

286

310 

347 

359 

398 

413

356 

280 

260 

260 

270

290 

260 

230

210 

190

Mean

46.5 

29.7 

25.8

95.6

21.5 

20.1 

24.7 

82.3 

370 

298 

169 

56.7 

33.9

98.7

July

190 

220 

240 

240 

230

230 

240 

260 

240 

213

205

186 

180 

175 

175

171 

159 

152 

154 

150

145 

140 

135 

123 

114

107 

100 

96 

94 

91 

88

Per 

square 

mile

0.408 

.261 

.226

.839

.189 

.176 

.217 

.722 

3.25 

2.61 

1.48 

.497 

.297

.866

Aug.

88 

85 

85 

82 

77

72 

67 

64 

62 

62

60 

56 

54 

53 

52

49 

48 

46 

46 

51

54 

53 

53 

49 

46

44 

42 

41 

39 

39 

39

Sept.

38 

36 

38 

37 

36

34

35 

37 

36 

36

36 

35 

34

33 

32

32 

34 

34 

34 

34

33 

32 

31 

31 

31

32 

32 

32

31 

32

Runoff

Inches

0.47 

.29 

.26

11.37

.22 

.18 

.25 

.81 

3.74 

2.92 

1.71 

.57 

.33

11.75

Acre-feet

2,860 

1,770 

1,590

69,180

1,320 

1,120 

1,520 

4,900 

22,730 

17,750 

10,400 

3,490 

2,020

71,470

* Winter discharge measurement made on this day. 

b Stage-discharge Stage-discharge relation relation affected affected by ice.

Note.- No gage-height record Feb. 4 to Mar. 14, June 4-7, June 22 to July 9; discharge computed 

n basis of weather records, records for Warm Springs Creek near Ketehum, and station at Howell 

:anch.
BIO LOST RIVER BASIN 101

Big Lost River at Howell Ranch, near Chilly, Idaho

Location.- Water-stage recorder, lat. 44°01', long. 114°00', in sec. 30, T. 8 N., R. 21 

fi., at Howell Ranch, 9 miles southwest of Chilly and 21 miles northwest of Mackay.

Records available.- April 1904 to August 1906, July 1907 to November 1914, May 1920 to 

September 1947 (no winter records).

Extremes.- Maximum discharge during year, 1,890 second-feet May 8 (gage height, 3.85 

1'eet); minimum not determined, probably occurred during period of no record.

1904-14, 1920-47: Maximum discharge, 3,500 second-feet June 12, 1921 (gage height, 

5.94 feet); minimum observed, 19 second-feet (discharge measurement) Dec. 12, 1939.

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

which are fair. Several small diversions above station. Hammerly ditch (capacity, 

about 20 second-feet) diverts a quarter of a mile below station.

Cooperation.- Water-stage recorder inspected by Water District No. 27.

Rating table, water year 1946-47, except periods of ice effect 

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

(Shifting-control method used Sept. 23-30)

0.9 10.0

1.2 169

1.5 264

1.9 430

2.3 641

2.8 975

3.3 1,370

3.8 1,840

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

b

6 1

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.

164

408

298

254

236

223

213

207

194

186

172

175

166

164

162

159

156

154

149

149

154

156

169

152

154

154

144

146

135

135

119

Nov.

132

121

113

132

126

123

126

121

bl!5

bl!5

b!2p

\ allO

-

Dec. Jan. Feb.

Month

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

Calendar year ......................

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

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

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

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

Mar. Apr.

alls

allo

110

bllo

blOO

blOO

blOO

blOO

blOO

blOO

blOO

blOO

b!30

177

216

229

264

283

257

287

302

298

294

287

283

330

398

493

519

509

-

Second 

foot-days

5,607

3,434

-

_

_

_

6,801

33,496

24,769

14,502

5,341

3,431

-

May

529

788

1,230

1,420

1,410

1,430

1,580

1,780

1,720

1,380

1,120

996

912

822

762

788

849

870

870

954

1,020

1,080

968

954

1,020

1,050

1,140

1,140

975

919

1,020

Maximum

408

132

-

_

_

_

519

1,780

1,140

710

250

128

-

June

1,020

982

905

815

742

716

722

912

961

835

7.95

729

729

781

815

919

1,040

1,030

1,100

1,140

933

775

703

703

748

788

722

629

561

519

-

Minimum

119

_

-

-

.

_

_

100

529

519

243

130

104

-

July

534

600

672

666

629

641

672

710

678

624

595

514

488

488

488

478

440

416

421

412

394

376

364

330

306

287

268

264

254

250

243

Aug.

246

236

236

250

223

203

194

186

177

172

172

162

159

159

154

149

144

139

137

149

180

210

180

162

149

142

137

135

137

132

130

Mean

181

114

-

_

_

_

227

1,081

are

4f8

172

11*

-

Sept.

126

123

128

128

123

117

117

121

119

119

117

115

110

106

106

104

108

119

115

113

110

110

108

107

106

113

113

110

110

110

-

Runoff in 

acre feet

11,120

6,810

-

-

_

_

_

13,490

56", 4*0

49,130

28,760

10,590

6,810

- '

a. No gage-height record; discharge computed on basis of weather records and records for station at 

Wild Horse, near Chilly.

b Stage-discharge relation affected by ice.
102 BIG LOST RIVER BASIN

Big Lost River (east channel) above Mackay Reservoir, near Mackay, Idaho

Location.- Water-stage recorder and concrete control, lat. 43°59', long. 113°45', in sec. 

3k!, T, 8 N., R. 23 E-, above flow line of reservoir, 3 miles upstream from Mackay Dam 

and 1\ miles northwest of Mackay.

Records available.- May 1919 to September 1947. 

Average discharge.- 28 years, 64.8 second-feet.

Extremes.- Maximum discharge during year, 860 second-feet May 9 (gage height, 4.60 feet); 

minimum, 8 second-feet Jan. 31, Apr. 11-30; minimum gage height, 1.25 feet Jan. 31, 

Apr. 25-28, 30.

1919-47; Maximum discharge, 1,320 second-feet June 7, 1938; maximum gage height, 

5_.02 feet July 1, 1944; no'flow during long periods in 1920, 1923-38, 1940.

Remarks^- Records good except those for periods of backwater and those for Jan. 1 to 

Apr r 30, which are fair. Diversions above station for irrigation.' The sum of the 

combined discharge of east and west channels of Big Lost River and of the combined 

discharge of east and west channels of Warm Spring Creek, near Mackay, represents 

practically entire surface flow of Big Lost River which enters Mackay Reservoir.

Cooperation.- Water-stage recorder graph furnished by Water District No. 27. 

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

13

14

16

23

29

29

30

30

30

30

30

30

30

30

30

30

30

31

31

31

31

31

31

31

31

32

32

32

32

32

30

Nov.

30

28

27

26

27

26

27

27

25

24

24

23

24

23

21

20

20

20

20

21

20

20

20

20

19

18

18

18

18

18

-

Dec.

18

18

20

19

18

18

18

18

18

17

17

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

15

Jan.

15

14

14

14

13

13

13

14

14

14

14

13

13

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

11

Feb.

10

10

10

10

10

10

10

10

10

9

9

9

9

10

10

10

10

10

11

10

10

10

11

12

11

11

11

10

_

-

-

Month

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

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

December .............................. i ....

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

Septembe r ..................................

Water year 1946-47 ......................

Mar.

10

10

10

10

10

10

10

10

10

10

10

10

10

12

12

12

12

12

11

10

10

10

10

10

9

9

10

10

10

10

10

Apr.

10

9

9

9

9

9

9

9

9

9

9

8

9

8

9

9

8

8

8

8

8

8

8

8

8

8

8

8

8

8

-

Secondfoot-days

892

672

518

33,364

394

283

319

255

15,436

13,291

5,833

1,033

437

39,363

May

16

46

205

412

524

580

660

776

836

0770

0675

605

524

476

408

385

396

416

420

448

488

532

516

480

500

528

580

620

556

512

546

Maximum

32

30

20

698

15

12

12

10

836

590

258

54

21

836

June

561

556

537

492

440

400

377

448

520

500

0470

0420

0380

0380

0390

0430

0500

c530

0535

C590

0560

0450

0400

0370

385

385

366

337

311

271

-

Minimum

13

18

15

4

11

9

9

8

16

271

57

22

12

8

July

235

233

245

250

245

240

235

250

258

255

250

255

237

223

216

212

205

187

181

177

174

168

158

148

128

107

97

75

69

63

57

Aug.

54

51

48

46

44

43

40

38

35

36

35

34

33

31

30

30

29

27

27

28

30

30

30

30

27

26

26

25

25

23

22

Mean

28.8

22.4

16.7

91.4

12.7

10.1

10.3

8.5

498

443

188

33.3

14.6

108

Sept.

21

20

20

18

15

15

15

16

15

15

15

14

14

14

14

14

14

14

14

13

13

13

13

13

14

12

12

12

13

12

-

Runoff in 

acre feet

1,770

1,330

1,030

66,190

781

561

633

506

30,620

26,360

11,570

2,050

867

78,080

o Backwater from Mackay Reservoir; discharge computed on basis of percentage submergence 

trol and a standard submerged weir formula corrected on basis of discharge measurements.
BIG LOST RIVER BASIN 103

Big Lost River (west channel) above Mackay Reservoir, near Mackay. Tdaho

Location.- Water-stage recorder, l%t. 43°S8', long. 113°45', in sec. 5, T. 7 H., R. 23 E., 

aoove flow line jof reservoir, 3 miles upstream from Mackay Dam and 1\ miles northwest 

of Mackay.

Records available.- May 1919 to September 1947. 

Average discharge.- 28 years, 58.6 second-feet.

Extremes.- Maximum discharge during year, 222 second-feet May 9 (gage height, 3.15 feet); 

minimum, 30 second-feet Apr. 19-P2 (gage height, 2.00 feet).

1919-47: Maximum discharge, 1,200 second-feet (estimated) somstime during period 

June 5-16, 1921 (gage height, 4.45 feet, site and datum then in use); minimum, 9 secondfeet May 22, 26, 1935.

Remarks.- Records good except those for periods of backwater f rotn-Mackay Reservoir, which 

 are fair. Diversions above station for irrigation. The sum of the combined discharge 

of east and west channels of Big Lost River and the combined discharge of east and west 

channels of Warm Spring Creek, near Mackay, represents practically the entire surface 

flow of Big Lost River which enters Mackay Reservoir (see following page).

Cooperation.- Water-stage recorder graph furnished by Water District Ho. 27.

Discharge, in seoond-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

54

59

56

55

52

52

52

52

52

52

52

52

51

51

51

51

51

51

51

51

51

51

51

51

51

51

51

51

50

50

48

Nov.

47

46

46

46

46

46

46

46

46

46

46

46

46

45

45

45

43

43

46

47

47

46

46

46

46

46

46

47

46

47

-

Dec.

46

46

45

43

43

43

43

43

43

43

42

42

42

42

43

43

43

43

43

43

43

43

42

43

43

43

42

42

42

42

41

Jan.

41

40

40

40

40

40

40

40

40

40

40

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

38

38

38

Feb.

38

38

38

38

38

36

36

36

36

36

36

36

36

36

36

36

36

36

36

35

35

35

35

36

36

36

35

35

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

35

34

34

34

34

34

34

34

34

34

33

33

34

34

35

38

38

38

36

35

34

33

33

33

33

33

34

34

34

34

34

Apr.

34

34

34

34

34

33

32

32

33

33

34

34

34

34

33

32

31

31

30

30

30

30

31

31

32

32

32

32

32

32

Secondfoot-days

1,604

1,376

1,330

23,103

1 , 218

1,012

1,064

970

3,353

2 910

1*953

1^466

1,306

19,562

May

32

35

59

103

117

130

148

182

212

0190

0150

0130

117

107

90

84

82

82

81

82

89

95

100

95

97

102

110

122

115

105

110

Maximum

59

47

46

260

41

38

38

34

212

135

75

50

45

212

June

112

114

110

103

94

84

80

87

102

108

olOO

090

085

c80

c80

c90

0105

ollO

0115

cl30

0135

cllO

c95

c90

89

89

89

84

78

72

-

Minimum

48

43

41

39

38

35

33

30

32

72

50

45

43

30

July

69

66

66

68

69

69

68

69

72

75

74

68

63

62

62

63

62

62

62

61

62

63

62

62

61

56

54

52

50

50

51

Aug.

50

50

50

50

50

48

48

48

47

47

47

46

46

46

46

46

45

45

45

47

50

50

48

48

47

47

46

47

46

45

45

Mean

51.7

45.9

42.9

63.3

39 3

36.1

34.3

32 . 3

108 '

97.0

63.0

47.3

43.5

5J.6

Sept.

43

45

45

45

45

45

43

43

43

43

43

43

43

43

43

43

45

43

45

45

43

43

43

43

43

43

43

43

43

43

-

Runoff in 

acre feet

3,180

2,730

2,640

45,810

2,420

2,010

2,110

1,920

6,650

5,770

3,870

2,910

2,590

38,800

Backwater from Mackay Reservoir; discharge computed by using slope as a factor.
104 BIG LOST RIVER BASIN

Combined discharge, in second-feet, of Big Lost River (east and west channels) and Warm Spring Creek

(east and west channels) above Mackay Reservoir, near Mackay, Idaho,

wate^- year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IV

18

19

20

21

22

23

24

lib

26

2V

28

29

30

31

Oct.

205

216

208

21Z

213

211

211

213

212

213

213

213

213

214

215

213

213

215

214

214

214

214

215

215

213

214

214

214

212

210

205

Nov.

204

201

200

199

200

199

202

203

201

198

198

197

198

197

195

193

190

191

198

208

203

202

200

199

196

195

195

198

197

197

Dec.

194

193

193

190

189

193

191

191

189

189

187

187

186

186

187

184

184

186

184

186

186

186

183

184

184

186

185

183

183

183

181

Jan.

182

181

182

179

178

178

179

179

180

180

180

178

178

178

177

180

177

177

177

177

176

176

176

176

175

175

175

175

174

173

171

Feb.

170

169

166

166

166

164

165

165

164

163

162

163

163

166

166

166

166

166

166

165

165

163

166

168

170

168

169

168

_

-

Month

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

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

Calendar year 1946 ......................

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

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

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

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

Water year 1946-47 ......................

Mar.

166

165

165

163

163

163

164

164

163

163

162

160

164

179

188

183

178

175

170

163

161

158

156

155

153

153

154

154

155

158

156

Apr.

154

153

153

153

152

150

146

143

145

145

145

144

146

145

145

144

141

141

140

139

136

135

134

132

128

125

119

119

119

119

Secondfoot-clays

5,793

103,472

5 499

5,271

104,763

May

126

161

367

654

791

873

985

1,160

1,280

1,190

1,020

909

803

734

632

596

604

625

628

658

711

770

764

720

743

782

852

915

839

776

822

Maximum

203

194

1,240

191

1,280

June

837

836

812

753

682

622

593

683

781

773

739

670

615

603

611

667

763

808

824

906

886

733

649

606

615

617

598

561

526

476

-

Minimum

205

190

181

147

166

119

July

434

426

442

452

450

444

435

451

470

475

465

455

425

408

402

399

390

370

365

360

360

354

339

331

303

272

258

232

221

214

207

Avg.

203

201

199

197

195

191

187

186

183

186

186

182

181

182

183

181

180

178

176

182

194

193

190

189

187

187

188

188

188

183

179

Mean

213

198

187

283

176

237

Sept.

173

170

170

166

166

166

166

168

169

170

175

173

172

168

168

167

173

173

176

175

174

182

182

190

190

191

190

190

190

188

-

Runoff in 

acre-feet

13,070

11,810

11,490

205,200

10,450

207 , 800
BIG LOST RIVER BASIN 105

Mackay Reservoir near Mackay, Idaho

Location.- Staff gage on head-gate tower of dam on Big Lost River, lat. 43°57', long. 

113°40 T , in sec. 12, T. 7 N., R. 23 E., 4 miles northwest of Mackay. Datum of gage is 

6,000 feet above mean sea level.

Records available.- January 1919 to September 1947.

Extremes.- Maximum contents observed during year, 40,480 acre-feet June 20-22 (gage 

 height, 63.60 feet); minimum observed, 5,420 acre-feet Sept. 22 (gage height, 23.80

feet).

1919-47: Maximum contents srbserved, 41,270 acre-feet May 30, 1938 (gag? height,

64.20 feet); no available contents during periods in 1919, 1920, 1924, 1926, 1929,

1931-35; minimum gage height observed, 6.3 feet Aug. 5, 1934.

Remarks.- Reservoir is formed by earth- and rock-fill d&m, which was reconstructed 1917-18; 

storage impounded by original dam not recorded. Capacity, 38,400 acre-feet between 

gage heights 7.0 feet (bottom of outlet tunnel) and 62.0 feet (crest of spillway). 

Dead storage reported to be about 125 acre-feet. Water is used for irrigation of lands 

in Big Lost River irrigation district. Considerable seepage around dam be?ause of its 

porous foundation, but the greater part of this water returns to Big Lost River between 

reservoir and station below reservoir, near Mackay. Figures given herein represent 

usable contents computed for 12 p.m. on basis of once-daily readings of staff gage.

Cooperation.- Gage-height record and capacity table furnished by Water District No. 27.

Contents, in acre-feet, water year October 1946 to September 1947

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

Oot.

15,220

15,520

15,910

16,280

16,590

16,910

17,260

17,570

17 810

18,130

18,450

18,840

19,210

19,490

19,790

20,060

20,370

20,680

21,060

21,330

21,520

21,830

22,140

22,360

22,660

23,000

23,310

23,530

23,880

24,220

24,490

Nov.

24,740

25,000

25,200

25,420

25,700

25,930

26,100

26,270

26,700

27,000

27,320

27,550

27,750

27,950

28,160

28,380

28,600

28,870

29,220

29,640

30,000

30,330

30,600

30,860

31,120

31,400

31,6OO

31,760

31,940

32,100

Deo.

32,300

32,480

32,680

32,880

33,110

33,310

33,470

33,650

33,850

34,080

34,260

34,420

34 , 600

34,790

34,970

35,120

35,290

35,460

35,630

35,820

36,000

36,150

36,280

36,410

36,540

36,690

36,790

36,870

36,930

36,990

37,080

Jan.

37,180

37,240

37,300

37,380

37,440

37,490

37,480

37,440

37,420

37,430

37,440

37,540

37,620

37 , 630

37,630

37,630

37 , 640

37,660

37.66O

37,660

37,670

37,670

37,68O

37,680

37,700

37,700

37,700

37,710

37,710

37,720

37,730

Feb.

37,750

37,760

37,770

 37,770

37,780

37,780

37,780

37,770

37,770'

37,78^

37,7*0

37,750

37,750

37,750

37,760

37,760

37,760

37,750

37,750

37,730

37,720

37,710

37,700

37,710

37,720

37,730

37,750

37,750

_

_

-

Mar.

37,750

37,750

37,750

37, 30

37, 20

37, 20

37, 2O

37, 10

37,700

37,680

37,680

37,670

37,670

37,680

37,730

37,820

37,870

37,870

37,860

37,820

37,780

37,730

37,680

37,660

37,620

3 ,540

3 ,470

3 ,420

3 ,390

3 ,390

3 ,380

Apr.

37,360

37,290

37,230

37,150

37,140

37,130

37,090

37,030

36,930

36,870

36,790

36,690

36.&30

36,580

36,520

36,460

36,430

36,380

36,330

36,300

36,250

36,200

36,150

36,050

35,990

35,900

35,750

35,660

35,600

35,490

Hay

35,420

35,350

35,560

36,230

37,190

38,140

38,930

39,510

39,940

40,080

39,800

39,470

39,240

39,010

38,670

38 , 400

38,330

38,160

38,270

38-, 550

38,810

38,930

38,970

39,000

39,030

39,120

39,210

39,210

39,180

39,150

39,120

JuQ6

39,110

39,150

39,150

39,020

38,850

38,750

38,810

38,950

39,320

39,670

4o,04o

40,150

40,020

39,910

39,840

39,770

39,950

40,250

4O,440

40,480

40,480

40,290

39,940

39,560

39,270

38,840

38,380

37,960

37,360

36,620

-

July

36,090

35,490

35,130

34,660

34,100

33,650

33,340

33,170

33,050

32,500

31,970

31,650

31,270

30,930

30,540

29,990

29,330

28,520

27,960

27,380

26,730

26,020

25,510

24,710

23,940

23,220

22,410

21,560

20,790

20,130

19,480

Aug.

18,890

18,390

17,640

17,020

16,650

16,320

15,900

15,540

15,190

14,790

14,500

14,130

13,830

13,560

13,260

12,970

12,600

12,240

11,870

11,540

11,280

11,010

10,830

10,560

10,440

10,400

10,290

10,160

9,940

9,820

9,750

Sept.

9,640

9,480

9,280

9,180

8,730

8,370

8,090

7,840

7,540

7,270

7,07O

6,810

6,540

6,380

6,200

5,940

5,770

5,590

5,480

5,480

5,440

5,510

5,720

5,870

5,960

6,020

6,070

6,120

6,180

6,260

-

Monthly gage height and contents, water year October 1946 to September 1947

Date Gage height 

(feet)

38.83 

49.81 

56.82 

60.95

-

61.47 

61.48 

61.19 

59.66 

62.56 

60.58 

44.48 

31.64 

25.55

-

Contents 

(acre-feet)

14,850 

24,490 

32,100 

37,080

-

37,730 

37,750 

37,380 

35,490 

39,120 

36,620 

19,480 

9,750 

6,260

-

Change In contents 

during month 

(acre-feet)

+9,640 

+7,610 

+4,980

+6,280

+650 

+20 

-370 

-1,890 

+3,630 

-2,500 

-17,140 

-9,730 

-3,490

-8,590

881401 O - 50 - 8
106 BIG LOST RIVER BASIN

Big Lost River below Mackay Reservoir, near Mackay, Idaho

Location.- Water-stage recorder, lat. 43°56', long. 113°38', in sec. 18, T. 7 N., R. 

24 E., 450 feet' downstream from Oleson Suspension Bridge, 1 mile downstream from 

head of Sharp ditch, l| miles donwstream from Mackay Reservoir, and 2j miles northwest of Mackay.

Records available.- December 1903 to August 1906, May 1912 to March 1915 (April 1913 to 

Karen 1916 at site 1 mile downstream), January 1919 to September 1947.

Average discharge.- 31 years (1904-5, 1912-14, 1919-47), 271 second-feet.

Extremes.- Maximum discharge during year, 1,120 second-feet (regulated) May 10 (gage 

height, 3.77 feet); minimum, 56 second-feet (regulated) Oct. 1; minimum gage height, 

1.62 feet Oct. 4.

1903-6, 1918-15, 1919-47: Maximum discharge, 2,990 second-feet June 10, 1921 (gage 

height, 5.79 feet); minimum, 18 second-feet (regulated) Nov. 1, 1934; mirimum gage 

height, 1.23 feet Nov. 5-8, 1926.

Remarks.- Records good except those for May 5-10, which are fair. Sharp ditch is only 

diversion between station and reservoir; many diversions above reservoir. Flow regulated by Mackay Reservoir (see preceding page).

Cooperation.- Water-stage recorder inspected by Water District No. 27.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

60

60

58

58

58

58

58

58

60

60

60

60

63

69

69

69

69

69

69

69

72

75

75

75

75

77

80

80

80

82

82

Nov.

82

82

82

85

85

85

87

87

87

87

87

87

87

87

87

87

90

93

96

98

98

98

98

96

96

98

98

101

98

101

-

Dec.

104

104

104

104

106

109

109

109

109

109

109

109

109

109

109

106

106

109

109

109

109

109

109

112

112

121

142

146

146

146

146

Jan.

146

146

146

146

146

146

165

183

179

169

169

169

165

169

169

172

172

172

172

172

172

176

176

176

176

176

179

176

179

179

179

Feb.

179

179

179

179

179

179

179

179

179

179

179

179

183

179

183

183

183

183

183

183

186

183

183

183

183

183

183

183

_

_

-

Month

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

Calendar year 1946 ......................

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

Septembe r ...................... ...........

Water year 1946-47 ......................

Mar.

183

183

183

183

183

183

183

183

183

183

183

183

186

186

186

186

186

190

197

197

197

197

197

197

197

197

197

197

197

201

201

Apr.

201

201

201

197

197

197

197

197

197

197

194

194

194

194

190

190

190

190

185

186

183

183

183

183

183

183

183

" 183

183

183

-

Secondfoot-days

2,730

3,549

108,414

5,075

21,294

7,703

113,266

May

183

216

302

311

347

432

535

775

1,040

1,110

1,080

990

907

841

775

715

685

630

597

602

624

658

697

709

7D9

721

787

847

847

817

805

Maximum

82

101

146

1,190

186

201

1,110

323

1,110

June

805

811

811

793

757

691

602

565

560

545

602

636

641

668

658

652

658

668

739

823

865

829

775

715

745

805

811

835

823

805

-

Minimum

58

82

104

52

146

179

183

183

130

58

July

757

733

721

721

721

685

674

668

668

680

691

674

652

658

668

663

680

709

715

739

757

697

685

685

709

715

703

685

636

608

565

Aug.

500

491

500

491

456

408

384

365

365

361

351

338

338

333

333

338

34'

351

351

370

361

338

307

293

293

281

264

260

264

272

272

Mean

68.0

91.0

114

297

168

181

130

191

687

723

354

,257

310

Sept.

268

276

285

293

320

329

324

324

329

324

320

315

315

311

307

302

302

281

231

212

201

172

136

130

142

190

190

190

190

194

Runoff in 

acre-feet

4,180

5,410

7,040

215,000

10,350

10,070

11,670

11,350

42,240

43,030

15,280

224,700
BIG LOST RIVER BASIN 107

Big Lost River near Arco, Idaho

Location.- Water-stage recorder, lat. 43°35', long. 113°17', in SW£ sec. 17, T. 3 K., R.

ay E., 600 feet downstream from head of box canyon, 2,000 feet southeast of Mower ranch

house, and 3 miles southeast of Arco. 

Records available.- August 1946 to September 1947. 

Extremes.- Maximum discharge during period August 1946 to September 1947, 285 second-feet

June b'; maximum gage height, 3.85 feet Feb. 3, 4 (ice jam); minimum discharge recorded,

28 second-feet Aug. 12, 13, 19, 20, 1947 (gage height, 1.47 feet), but may have been

less during period of no gage-height record in July. 

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

which are poor. Station is below all large diversions for irrigation in Big Lost

River Valley. Flow regulated by Mackay Reservoir (see p. 105).

Discharge, in second-feet, 1946-47 

1946

Day

1

Z

3

4

b

6

Aug.

_

-

_

-

-

_

Sept.

89

85

76

71

78

74

Day

7

8

9

10

11

12

Aug.

_

-

_

-

-

_

Sept.

76

78

69

74

64

57

Day

13

14

15

16

17

18

Aug.

.

-

_

-

-

_

Sept.

53

51

45

44

47

54

Day

19

20

21

22

23

24

Aug.

.

-

_

-

-

_

Sept:

51

46

44

43

45

44

Day

25

26

27

28

29

30

31

A Jg.

_

_

_

134

143

116

100

Sept.

46

46

45

43

43

43

-

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

53

80

69

65

67

82

89

87

85

85

85

85

87

80

78

76

74

69

67

67

65

62

62

65

67

67

69

69

69

65

64

Nov.

64

62

65

65

65

67

69

67

65

65

65

64

64

65

65

65

67

69

85

100

89

89

94

89

87

87

85

82

85

82

-

Dec.

78

78

78

76

82

89

 90

(*)

> 60

62

61

61

61

64

65

60

Jan.

55

Feb.

(*)

 55

70

90

122

122

128

131

134

137

137

146

171

177

171

162

150

-

-

-

Mar.

160

160

158

152

152

152

149

152

152

143

143

143

*152

162

177

186

183

165

158

158

149

143

152

152

140

134

131

128

125

125

125

Apr.

122

131

140

143

137

140

140

131

131

119

113

111

102

89

87

97

111

131

137

131

122

131

134

131

97

80

80

62

59

50

-

May

44

34

32

37

50

50

46

39

56

149

227

269

272

275

272

243

221

186

155

113

78

67

64

59

49

47

45

44

44

46

49

June

76

137

199

237

272

279

269

266

250

237

250

262

262

250

246

243

183

100

51

40

36

35

35

34

32

30

1

> 30

1

-

July

34

34

34

34

34

33

33

34

31

30

31

33

Aug.

33

33

33

34

34

32

33

33

30

30

31

30

31

33

33

32

31

31

30

31

34

35

39

47

49

45

46

45

43

39

39

Sept.

38

39

39

40

39

37

38

36

. 40

-

* Winter discharge measurement made on this day.

Note.- No gage-height record Dec. 7-17, Jan. 7 to Feb. 2, June 27 to July 20, Sept. 9-30; discharge computed on basis of weather records, recorded range In stage, and records for station 

below Mackay Reservoir and Camas Creek near Blalne. Stage-discharge relation affected by Ice

Dec 18-21, Dec. 28 to Feb. 15, Feb. 28 to Mar. 2.

Month

Calendar year ........ .............

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

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

Hater year 1946-47 .......... ...........

Secondfoot-days

1,724

2,254 

2,232 

2,265

1,705 

2,763 

4,661 

3,389 

3,362 

4,431 

1,041 

1,099 

1,186

3O, 388

Maximum

89

89 

100

177 

186 

143 

275 

279

49

279

-47 

Minimum

43

53 

62

125 

50 

32

30 

36

-

Mean

57.5

72.7 

74.4 

73.1

55.0 

90.7 

150 

113

ion

148 

35.6 

33.5 

31.5

83.3

Runoff in 

acre feet

3,420

4,470 

4,430 

4,490

3,380 

5,480 

9,240 

6,720 

6,670 

8,790 

2,060 

2,180 

2,350

60,260
108 BIG LOST RIVER BASIN

Warm Spring Creek (east channel) near Mackay, Idaho

Location.- Water-stage recorder, lat. 43°58', long. 113°45', in NE^ sec. 5, T. V N., R.

 23 E., VOO feet upstream from confluence with west channel and V? miles northwest of 

Mackay.

Records available.- May 1919 to September 194V. 

Average discharge.- 28 years, 28.2 second-feet.

Extremes.- Maximum discharge during year, 89 second-feet May 9 (gage height, 2.59 feet);

 minimum, 15 second-feet Apr. 30, May 1 (gage height, 1.5V feet).

1919-4V: Maximum discharge observed, 225 second-feet June 15, 1922 (gage height, 

3.24 feet, site and datum then in use); minimum, 9 second-feat May 8, 9, 13, 14, 1919, 

May 18-21, 1920.

Remarks.- Records good. Practically all natural flow above station diverted during irri-

 gation season. Discharge during summer represents return water from irrigation. The 

sum of the combined discharge of east and west channels of Warm Spring Creek and the 

combined discharge of east and west channels of Big Lost River, near Mackay, represents 

practically the entire surface flow of Big Lost River which enters Mackay Reservoir.

Cooperation.- Water-stage recorder graph furnished by Water District No. 27.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

28

31

28

Z7

Z6

Z5

25

25

Z5

25

Z5

25

Z5

Z5

Z5

25

25

25

Z5

25

25

Z5

25

25

24

Z4

24

24

Z4

23

23

Nov.

22

ZZ

22

2Z

22

22

23

24

24

23

23

23

Z3

23

23

22

Z2

ZZ

Z4

Z6

24

Z4

23

23

23

Z3

23

23

23

23

-

Dec.

23

Z2

22

Z2

21

24

Z3

Z3

ZZ

23

22

23

23

Z3

Z3

Z3

23

Z3

23

23

Z3

Z3

23

Z3

Z3

Z3

23

23

Z3

23

23

Jan.

Z4

Z3

Z4

23

Z3

Z3

Z4

Z3

24

Z4

24

Z4

24

Z4

24

25

24

24

Z4

24

24

Z4

24

Z4

24

24

24

23

23

Z3

23

Feb.

Z3

Z3

Z2

2Z

22

22

Z3

23

2Z

23

Z3

23

23

24

24

24

24

Z4

Z4

24

Z4

23

24

Z4

Z5

25

25

25

_

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

Mnv way. .......................................

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

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

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

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

Water year 1946-47 ......................

Mar.

25

Z5

25

24

Z4

24

24

24

24

Z4

24

Z4

Z5

28

30

29

27

26

Z5

Z4

24

23

Z3

23

2Z

Z2

22

21

2Z

24

Z3

Apr.

22

22

22

ZZ

22

21

21

ZO

21

Zl

21

Zl

21

21

21

Zl

Zl

Zl

21

Zl

20

20

20

19

18

17

16

16

16

16

-

Secondfoot-days

781

707

9,982

736

657

754

602

1 52 1

l!439

1,077 

825

87 /

10,665

May

16

17

Z8

46

50

57

63

73

86

83

68

60

55

50

4Z

39

38

38

38

38

41

43

46

45

45

47

51

57

55

52

54

Maximum

31

26

24

97

25

25

30

ZZ

86

60

45 

30

35

86

June

54

54

54

51

46

4Z

40

44

49

5Z

53

49

45

43

43

46

50

52

54

58

60

54

46

44

42

44

44

44

42

40

Minimum

23

22

21

14

Z3

22

21

16 

16

40

24

Z4

Z5

16

July

38

37

38

39

40

39

38

38

42

45

43

39

35

34

Si.

35

35

34

35

34

35

35

33

34

31

28

Z7

27

25

25

24

Aug.

24

24

25

25

25

24

24

24

25

25

26

25

25

27

Z7

?7

21

26

26

Z7

30

30

30

Z8

29

28

Z9

29

29

28

28

Mean

25 2

23 0

22!s

27.3

23.7

23 5

24 3

2o!l

49.1

48.0

34.7

26 . 6

29 . 2

29.2

Sept.

27

25

25

25

26

26

27

27

28

28

29

28

28

27

27

27

20

29

29

29

29

31

31

33

33

35

35

35

35

35

Runoff in 

acre-feet

1,550

1,370 

1,400

19,790

1,460

1,300

1,500

1,190

3,020

2,850

2,140

1,640

1,740

21,160

Note.- No gage-helghb record Dec. 16-28, June 16; discharge interpolated.
BIG LOST RIVER BASIN 109

Warm Spring 9reek (west channel) near Mackay, Idaho

Location.- Water-stage recorder, lat. 43°58', long. 113°45', in NEj- sec. 5, T. 7 N., 

K. 23 E. , 500 feet upstream from confluence with east channel and 7j miles northwest of Mackay.

Records available.- May 1919 to September 1947. 

Average discharge.- 28 years, 92.5 second-feet.

Extremes.- Maximum discharge during year, 158 second-feet May 9 (gage height, 2.03 

feet); minimum, 62 second-feet Apr. 30, May 1, 2 (gage height, 1.19 feet).

1919-47: Maximum discharge, 600 second-feet (estimated) Aug. 11, 1936 (gage 

height, 4.42 feet, datum then in use, from high-water mark); minimum, 49 second-feet 

Apr. 27, 1935 (gage height, 0.62 foot, datum then in use).

Remarks.- Records good. Flow during summer represents return flow from irrigation. 

The sum of the conbined discharge of east and west channels of Warm Spring Creek and 

the combined discharge of east and west channels of Big Lost River, near Mackay, represents practically the entire surface flow of Big Lost River which enters Mackay 

Reservoir.

Cooperation.- Water-stage recorder graph furnished by Water District No. 27. 

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

110

112

108

107

106

105

104

106

105

106

106

106

107

108

107

107

107

108

107

107

107

107

108

108

107

107

107

107

106

105

104

Nov.

105

105

105

105

105

105

106

106

1O6

105

105

105

105

106

106

106

105

106

108

114

112

112

111

110

108

1O8

108

110

110

alo9

-

Dec.

107

107

106

106

107

108

107

107

106

106

106

106

105

105

105

102

102

104

102

104

104

104

102

102

102

104

104

102

102

102

102

Jan.

102

104

104

102

102

102

102

102

102

102

102

102

102

102

102

104

102

102

102

102

101

101

101

101

100

100

100

101

101

100

99

Feb.

99

98

96

96

96

96

96

96

96

95

94

95

95

96

96

96

96

96

95

96

96

95

96

96

98

96

98

98

_

_

-

Month

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

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

Decembe r ....... ...........................

Calendar year 1346 ......................

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

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

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

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

Hay. .......................................

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

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

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

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

Water year 1946-47 ......................

Mar.

96

96

96

95

95

95

96

96

95

95

95

93

95

105

111

104

101

99

98

94

93

92

90

89

89

89

88

89

89

90

89

Apr.

88

88

88

88

87

87

84

82

82

82

81

81

82

82

82

82

81

81

81

80

78

77

75

74

70

68

63

63

63

63

-

Secondfoot-days

3,312

3,217

3,238

37,030

3,151

2,692

2,937

2 , 363

3,188

3 2 35

2* 746

2, 481

2,651

35,181

May

62

63

75

93

1OO

106

114

132

150

147

128

114

107

101

92

88

88

89

89

90

93

100

102

loo

101

105

111

116

113

107

112

Maximum

112

114

108

182

104

99

111

150

131

100

101

150

June

110

112

111

107

102

96

96

104

110

113

116

111

105

100

98

101

108

116

120

128

131

119

1O8

102

99

99

99

96

95

93

Minimum

104

105

102

75

99

94

88

63

62

93

75

75

' O

62

July

92

90

93

95

96

96

94

94

98

100

98

93

90

89

89

89

88

87

87

88

89

88

86

87

83

81

80

78

77

76

75

Aug.

75

76

76

76

76

76

75

76

76

78

78

77

77

78

80

78

80

80

78

80

84

83

82

83

84

86

87

87

88

87

84

Hear

107

107

104

101

102

96 . 1

94.7

78.8

103

107

80.0

"" . 4

96.4

Sept.

82

80

80

78

80

80

81

82

83

84

88

88

87

84

84

83

86

87

88

88

89

95

95

101

100

101

100

100

99

98

Runoff in 

acre-feet

6,570

6,380 

6,420

73,450

6,250

5,340

5,830

4,690

6,320

6,360

5,450

4,920

5,260

69,790

a No gage-height record; discharge interpolated.
110 BIG LOST" RIVER BASIN

Sharp ditch near Mackay, Idaho

Location.- Water-stage recorder and sharp-crested weir, lat. 43°57', long. 113°39', In 

sec.j?, T. 7N., R. 24 E., 1,600 feet downstream from head of ditch, three-quarters of 

a mile" downstream from Mackay Reservoir, and 3j miles northwest of Mackay.

Records available.- April 1939 to September 1947. June 1912 to October 1914 and March 

I9l9~to April 1939 at site 1,400 feet upstream, above Hintze ditch.

Extremes.- Maximum discharge during year, 50 second-feet July 10 (gage height, 1.63 

reet); no flow May 1, 2.

1912-14, 1919-47: Maximum discharge, that of July 10', 1947; no flow at times.

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

Sharp ditch diverts from east side of Big Lost River in SE^ sec. 12, T. 7 N.,jl. £2 

E., half a mile below Mackay Reservoir and 1 mile above station on Big Lost River 

below Mackay Reservoir, near Mackay. Water used for irrigation northwest of Mackay 

and above Streeter ditch. Hintze ditchTjWhich diverts from Sharp ditch atove station, 

was reported by water-master to have carried 151 acre-feet during year (54 in May, 71 

in June, and 26 in July).

Cooperation.- Water-stage recorder graph furnished by Water District No. 27.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Octo 

Move 

Dece

Ca.

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

Oct.

1.4 

1.9 

2.2 

4.3 

7.2

8.0 

8.0 

8.2 

8.7 

9.5

9.8 

11 

11 

9.2 

9.2

8.7 

8.0 

8.0 

8.0 

8.0

7.5 

3.2 

3.2 

3.2

3.0

3.0 

2.2

1.9 

1.8 

1.8 

1.6

Nov.

1.6 

1.6 

1.6 

1.6 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 1.9- 

1.9 

1.9

1.9 

1.9 

1.9 

2.2 

2.8

2.8 

2.8 

2.8 

2.8 

2.8

2.8 

2.8 

2.8 

2.8 

2.8

Dec.

2.8 

2.8 

2.8 

3.0 

3.0

3.0 

3.2 

3.2 

3.2 

3.4

3.4 

3.2 

3.2 

3.2 

3.2

3.2 

3.4 

3.5 

3.5 

3.5

3.5 

3.5 

3.5

2.3

.7

Month

Jan.

' 0.7 

h.7

} "

Feb.

, 0.7

ber. ...................................

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

lendar year 1946

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

ter year 1946-47 ...............

Mar.

. 0.7

1.0 

.8

.6 

.5 

.5 

.5 

.5

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

.6

Apr.

> 0.6

Secondfoot-days

182.7 

66.0 

81.4

3,286.4

21.7 

19.6 

20.1 

18.0 

849.6 

749 

773 

553 

488

3,322.1

May

hO.2 

0 

.6 

.6

.6

.6 

19 

35 

39 

38

38 

37 

36 

34 

32

31 

31 

31 

29 

30

33 

34 

34 

35 

35

36 

38 

39 

38 

34 

31

Maximum

11 

2.8 

3.5

34

1.0

39 

37 

34

23 

18

39

June

31 

31 

31 

32 

31

27 

23 

14 

14 

14

15 

17 

19 

21 

20

20 

20 

20 

20 

20

20 

20 

24 

31 

34

35 

36 

36

37 

36

Minimum

1.4 

1.6

0

.5

0

14 

18 

15 

11

0

July

34 

30 

29 

29 

29

27 

27 

26 

26 

27

23 

25 

25 

24 

24

24 

23 

24 

25 

26

22 

25 

26 

25 

26

26

21 

20 

19 

18 

18

Aug.

17 

21 

23

21 

18

20 

19

18 

17 

16

_ 16_ 

15 

16 

16 

16

15 

16 

17 

20 

21

19 

18 

17 

17 

17

17 

17 

17 

18 

19 

19

Mean5.89 

2.20 

2.63

9.OO

O.7O 

0.70 

0.65 

0.60 

27.4 

25.0 

24.9 

17.8 

16.3

10.5

Sept.

18 

18 

18 

18 

18

18 

18 

18 

18 

18

18 

18 

18 

18 

18

18 

18 

17 

16 

16

15 

14 

12 

12 

13

14 

14 

14 

14 

11

Runoff in 

acre- feet

362

131 

161

6,510

43 

39 

40 

36 

1,690 

1,490 

1,530 

1,100 

968

7,590

h Computed from staff-gage reading.

Note.- No gage-height record Dec. 25 to Jan. 26, Jan. 28 to Mar. 13, Apr. 1-30; discharge Interpolated, or computed on basis of field notes and Information furnished by water-master.
BIG WOOD RIVER BASIN 111

Big Wood River at Hailey, Idaho

Location.- Water-stage recorder, lat. 43°31'-, long. 114°20', in SW£ sec. 9, T. 2 N., R.

IB E., at steel highway bridge a quarter of a mile southwest of Hailey. 

Drainage area.- 640 square miles (total area above River and Slough stations). 

Records available.- July to December 1889, June 1915 to September 1947. 

Average discharge?- 32 years, 294 second-feet. Average combined discharge of Big Wood

Kiver and Big Wood Slough, 32 years, 409 second-feet. 

Extremes.- Maximum discharge during year, 2,270 second-feet May 9 (gage height, 5.60

feet); minimum not determined, probably occurred during period of no gage-height

record.

1889, 1915-47 (river only): Maximum discharge, 4,480 second-feet June 7, 1938;

maximum gage height, 8.66 feet June 12, 1921; practically no flow Sept. 15-23, Nov.

22, 23, 1931, Oct. 25, 1937.

1889, 1915-47 (combined): Maximum daily discharge, 4,500 second-feet June 6, 7,

1938; minimum daily, 15 second-feet Dec. 27, 1921. 

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

which are fair. Water diverted around station through Big Wood Slough (s<?e p. 119).

Total flow of river at Hailey (combined flow of Big Wood River and Big Wood Slough)

is given on following page. Diversions above station for irrigation. 

Cooperation.- Water-stage recorder inspected by Water District No. 7 AB.

20,

Rating table, water year 1946-47, except periods of ice effect

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

(Shifting-control method used Aug. 1 to Sept. 30)

1.5 50 3.1

1.7 82 3.5

2.0 142 4.0

2.3 220 4.8

2.7 353 5.5

537

762

1,060

1,590

2,180

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

189

369

299

260

244

232

223

214

212

209

203

203

2OO

198

195

195

192

189

189

187

195

206

229

212

209

209

206

182

122

122

114

Nov.

122

106

100

112

118

116

116

114

108

114

114

98

102

114

106

95

106

112

129

142

114

118

129

110

98

114

116

112

108

104

-

Dec.

95

98

91

102

 110

114

102

96

98

89

95

loo

100

100

96

89

b68

b65

62

75

75

74

70

67

68

80

86

79

67

b60

b58

Jan.

60

60

b60

60

65

70

75

75

75

80

80

75

75

75

65

65

70

75

87

84

79

79

77

82

82

86

b75

*b75

b75

b79

b77

Feb.

80

82

80

77

80

79

77

b75

b76

82

82

87

87

84

86

87

86

82

79

75

80

89

87

87

91

91

84

77

_

-

Month

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

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

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

Calendar year 1946 ....... ...........

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

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

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

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

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

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

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

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

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

Water year 1946-47 ......................

Mar.

77

91

93

89

89

80

86

87

86

91

86

79

84

 87

95

108

131

169

209

241

269

292

299

292

316

316

306

323

342

403

390

Apr.

1

1

Secondfoot-days

6,408

3,367

2,629

144,480

2,297

2,309

5,706

18,279

43,740

28,105

14,318

4,643

2,448

134,249

378

365

349

331

309

306

292

299

289

296

302

320

378

532

693

762

821

850

821

821

856

845

821

803

774

792

862

982

030

000

May

1,020

1,230

1,640

1,840

1,840

1,840

1,950

2,150

2,170

1,850

1,530

1,400

1,320

1,200

1,100

1,080

1,110

1,130

1,160

1,230

1,300

1,320

1,230

1,200

1,250

1,290

1,390

1,350

1,220

1,180

1,220

Maximum

369

 142

114

1,960

87

91

403

1,030

2,170

1,240

» 681

235

96

2,170

June

1,240

1,220

1,160

1,O8O

1,020

988

982

1,070

1,130

1,010

952

874

839

856

868

946

1,020

1,050

1,100

1,080

946

833

792

750

780

821

762

698

647

591

-

Minimum

114

95

58

32

60

75

77

28S

1,020

591

244

84

70

58

July

602

630

681

681

658

658

658

681

664

613

591

532

506

491

476

457

429

407

403

386

346

316

313

299

285

279

269

260

256

247

244

Aug.

235

226

229

226

212

200

187

182

179

184

179

174

171

171

169

166

166

142

98

106

110

104

108

100

96

91

89

89

86

84

84

Sept.

80

80

84

82

77

75

77

86

84

82

80

75

72

70

74

75

91

96

93

95

93

86

82

82

79

80

80

77

79

82

-

Mean Runoff in 

ean acre-feet

207 12,710

112 6,680

84.8 5,210

396 286,600

74.1 4,560

82.5 4,580

184 11,320

609 36,260

1,411 86,760

937 55,750

462 28,400

150 9,210

81.6 4,860

36f 266,300

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by iae.

Mote.- No gage-height record Jan. 1, 2, 4-18; discharge computed on basis of weather records and 

records for Big Wood Slough at Hailey and Warm Springs Creek near Ketchum.
112 BIG WOOD RIVER BASIN

Combined discharge, In second-feet, of Big Wood River and Big Wood Slough at Hailey, Idaho, 

water year OctobeT 1946 to September 1947

Day

1a

3

4

5

6

7

8

9

10

1112

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

30

31

Oct.

238

421

310

293

281

272

261

258

254

247

246

242

237

233

232

230

227

226

223

230

242

265

248

246

248

243

240

226

226

215

Nov.

227

204

196

213

219

217

218

215

206

215

216

193

198

216

204

187

206

216

240

260

229

236

240

211

214

2 3d

225

210

206

197

-

Dec.

184

188

184

197

210

214

197

186

190

174

185

193

193

195

189

175

130

131

142

160

160

159

150

133 _

137

154

164

151

126

110

103

Jan.

115

110

115

125

135

147

150

150

150

155

160

150

155

155

130

130

140

150

157

159

159

159

157

162

162

166

159

156

153

154

157

Feb.

164

166

164

161

164

163

158

157

160

169

169

174

174

171

172

172

169

163

158

152

161

176

174

173

178

180

169

157

_

-

Month

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

Calendar year 1946 ......................

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

AuKust

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

Water year 1946-47 ......................

Mar.

154

181

184

178

176

161

173

176

172

181

172

160

168

174

186

205

237

285

332

369

405

432

443

411

382

381

371

389

408

471

458

Apr.

444

430

413

394

371

367

352

359

351

356

362

380

439

595

756

824

882

911

880

881

907

885

862

829

787

806

877

997

1,050

1,020

Seoondfoot-days

7 909

5,164

174,578

4 582

5,123

159,923

May

1,050

1,250

1,650

1,850

1,850

1,880

2,040

2,240

2,240

1,900

1,580

1,450

1,370

1,240

1,140

1,120

1,150

1,170

1,200

1,270

1,340

1,360

1,270

1,240

1,290

1,330

1,430

1,390

1,260

1,220

1,260

Maxima

214

2,040

195

2,240

June

1,280

1,260

1,200

1,120

1,060

1,020

1,010

1,100

1,160

1,080

1,050

961

923

940

953

1,040

1,120

1,150

1,200

1,180

1,040

914

870

824

855

901

837

768

711

647

Mininum

215

103

103

152

154

103

July

660

691

749

750

722

722

723

747

727

671

645

579

550

533

517

496

465

438

436

418

394

389

384

363

347

338

324

315

309

300

298

Aug.

289

277

280

275

257

242

225

217

211

213

211

205

202

203

201

196

195

187

190

199

205

196

203

191

183

176

173

172

167

163

163

Mean

215

167

47S

171

458

Sept.

158

158

162

157

154

160

173

171

169

166

159

155

154

159

160

186

194

191

195

193

182

177

175

172

177

178

175

17fi

174

Runoff In 

ao re-feet

10,240

346,200

10,160

317,200
BIG WOOD RIVER BASIN 113

Big Wood River near Bellevje, Idaho

Location.- Water-stage recorder, lat. 43°19', long. 114°21', in sec. 20, T. 13., R. 18 E., 

It miles upstream from flow line of Magic Reservoir, 3 miles upstream from Camas Creek, 

and 10 miles southwest of Bellevie.

Drainage area.- 823 square miles.

Records available.- July 1911 to September 1947 (except winters of 1942 and prior to 1940).

Extremes.- Maximum discharge during .year, 1,570 second-feet May 9 (gage height, 4.18 feet); 

minimum, 57 second-feet Sept. 1, 2 (gage height, 1.91 feet).

1911-47: Maximum discharge recorded, 3,660 second-feet June 16, 1921 (gage height, 

6.07 feet), from rating curve extended above 2,800 second-feet; minimum recorded, 7 

second-feet Apr. 14, 1932 (gage height, 1.10 feet).

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

which are poor. Many diversions above station for irrigation.

Cooperation.- Water-stage recorder inspected and four discharge measurements furnished by 

Water District No. 7 AB.

Rating tables, water year 1946-47, except periods of ice effect

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

(Shifting-control method used Nov. 3 to Feb. 19,

June 1 to July 4)

Oct. 1 to Apr. 13 Apr. 14 to Sept. 30

2.0 60 2.4 168 1.9 55 2.8 380 

2.1 81 2.5 208 2.0 75 3.1« 560 

2.2 106 2.7 310 2.1 100 3.5 870 

2.3 135 E.9 445 2.3 165 3.9 1,260 

2.5 240 4.2 1,590

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

73 

109 

145 

161 

17E

161 

155 

158 

152 

155

152 

148 

148 

148 

148

148 

152 

155 

158 

161

165 

176 

208 

213 

200

200 

217 

208 

184 

196 

192

Nov.

192 

196 

188 

184 

188

192 

192 

196 

188 

168

168 

165 

158 

165 

168

161 

158 

168 

213 

250

222 

200 

222 

227 

192

184 

188 

184 

180 

176

Dec.

168 

165 

161 

161 

*172

EOO 

188 

17E 

168 

161

158 

161 

165 

172 

165

158 

118 

101 

112 

123

123 

112 

101 

81 

68

68 

75 

76 

76 

72 

68

Jan.

70 

65 

6E 

66 

7E

72 

72 

7E 

72 

7E

72 

72 

71 

69 

62

62 

64 

67 

70 

72

71 

70 

70 

72 

74

76 

72 

*68 

b67 

66 

b65

Feb.

66 

75 

79 

84 

88

94 

96 

b86 

b70

73

73 

86 

14E 

1E9 

126

1E6 

123 

1EO 

118 

112

109 

115 

120 

118 

109

112 

112 

106

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1946

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

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

St. ....................................

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

ter year 1946-47 ... . . ...............

Mar.

98 

106 

109 

115 

118

109 

109 

115 

112 

135

138 

1E6 

1EO 

*120 

126

129 

138 

158 

188 

232

272 

310 

348 

329 

304

304 

299 

316 

329 

387 

402

Apr.

387 

387 

373 

34E 

3E9

3E3

E99 

304 

304 

294

E99 

310 

32J 

413 

521

602 

645 

675 

675 

675

698 

698 

668 

638 

595

588 ' 

609!

652 :

6901 

68E

Secondfoot days

5,118 

5,633 

4,069

109,591

E,147 

E.867 

6,201 

15,004 

24,203 

14,130 

5,555 

2,421 

2,067

89,415

May

630 

705 

915 

1,160 

1.E20

1,210 

1,240 

1,420 

1,500 

1,390

1,070 

897 

769 

68E 

567

508 

465 

424 

435 

483

588 

630 

595 

540 

588

602 

602 

645 

595 

554 

574

Maximum

217 

250 

EOO

1,640

76 

142 

402 

698 

1,500 

638 

290 

103 

82

1,500

June

60E 

638 

609 

560 

502

495 

508 

560 

616 

554

547 

495 

441 

418 

413

413 

453 

50E 

540 

547

483 

402 

365 

345 

350

391 

396 

365 

330 

290

Minimum

73 

158 

68

52

62 

66 

98 

294 

424 

290 

88 

63 

59

59

July

E76 

276 

280 

E76 

276

E80 

E7E 

276 

285 

290

27E 

228 

179 

172 

162

154 

134 

118 

106 

109

109 

118 

124 

121 

103

98 

98 

90 

88 

90 

95

Aug.

92 

88 

85 

95 

98

103 

103 

95 

88 

85

82 

80 

78 

73 

67

67 

67 

67 

69 

73

82 

80 

78 

71 

69

69 

65 

63 

63 

63 

63

Sept.

59 

61 

61 

67 

71

71 

73 

78 

82 

82

82 

79 

76 

74 

71

39 

66 

63 

63 

67

69 

67 

65 

65 

63

65 

65 

65 

65 

63

 __ Runoff in Mean acre-feet

165 10,150 

188 11,170 

131 8,070

300 217,400

69.3 4,260 

102 5,690 

200 12,300 

500 29,760 

781 48,010 

471 28,030 

179 11,020 

78.1 4,800 

68.9 4,100

245 177,400

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Dec. 27 to Jan. 27, Sept. 12-17; discharge computed on basis of 

weather records, recorded range in stage, combined flow of Big Wood River and Slough at Hailey, records for Warm Springs Creek near Ketchum, and change in storage in Magic Reservoir.
114 BIG WOOD RIVER BASIN

Magic Reservoir near Richfield, Idaho

Location.- Staff gage at dam on Big Wood River, lat. 43°15i, long. 114°22i, in NE&3E£ sec. 

IB, T. 2 S., R. 18 E., 18 miles northwest of Richfield. Datum of gage is 4,800 feet 

above datum of Idaho Irrigation Co., which is reported to be about 137 feet below mean 

sea level.

Drainage area.- 1,500 square miles.

Records available.- February to April 1909 (gage heights only), April 1909 to September 

1947.

Extremes.- Maximum observed contents during year, 193,100 acre-feet May 4-6, 9-11 (gage 

neignt, 135.4 feet); minimum observed, 83,100 acre-feat Sept. 30 (gage height, 97.9 

feet) .

1909-47: Maximum observed contents, 193,500 acre-feet June 26-28, 1944 (gage height, 

135.5 feet); no storage for several days in 1909, 1919, 1920, 1924, 1928, 1935.

Remarks.- Reservoir is formed by earth and rock-fill dam, completed in 1909, ?nd raised 

b rest in 1917. Capacity, 191,500 acre-feet between gage heights 21.4 feet (2.9 feet 

above bottom of outlet pipe) and 135.0 feet (top of 5-foot flashboards). r«ad storage 

unknown. Water is used for irrigation of lands in Carey Act projedt of Big Wood Canal 

Co. Figures given herein represent usable contents inlcuding bank storage. Gage read 

in morning except during irrigation season when it was read morning and evening; contents computed from morning reading.

Cooperation.- Gage readings and yield table furnished by Water District No. 7 AB.

Contents, In acre-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Oct.

104,000

104, 30C

104,800

105,000

105,300

105,800

106,300

106,500

106,800

107,000

107,500

107,800

108,000

108,500

108,800

109,000

109,600

109,800

110,100

110,300

110,800

111,100

111,600

112,100

112,600

112,900

113,400

113,700

114,200

114,700

115,000

Nov.

115,300

115,500

115,800

116,300

116,800

117,400

117,900

118,400

118,700

IIS'.OOO

119% 500

119,800

120,000

120,300

120,900

121,100

121,400

121,700

121,700

121,700

121,100

120,600

120,300

120,600

121,400

121,900

122,500

123,000

123,600

123,800

-

Dec.

124,400

124,700

125,200

125,500

126,000

126,600

126,900

127,400

128,000

128,500

128,800

129,400

129,700

130,200

130,800

131,400

131,900

132,200

132,800

133,100

133,300

133,600

133,900

134,200

134,500

134,800

135,400

135,700

136,000

136,200

136,200

Jan.

136,500

136,500

136,800

136,800

137,100

137,400

137,400

137,700

137,700

138,000

138,000

138,000

138,300

138,600

138,900

139,200

139,200

139,500

139,500

139,800

139,800

140,100

140,100

140,400

140,700

140,700

141,000

141,300

141,600

141,900

141,900

Feb.

142,200

142,200

142,500

142,800

143,100

143,500

143,800

143,800

144,100

144,100

144,100

144,700

145,300

147,200

148,500

149,400

150,400

151,000

152,000

152,600

153,300

154,000

154,600

155,300

156,600

158,300

160,000

161,000

-

-

-

Mar.

162,000

163,000

163,700

164,400

164,800

165,500

165,800

166,500

166,900

167,600

169,000

170,100

171,200

171,900

172,600

173,000

173,700

174,100

174,800

175,900

177,000

177,700

178,500

.179,200

180,700

182,200

183,800

184,900

186,100

187,200

188,800

Apr.

190,300

191,500

191,500

191,500

190,700

190,700

190,700

190,700

191,100

191,500

191,500

191,500

191,900

192,300

192,300

192,300

192,300

192,300

192,300

192,300

192,300

192,300

192,300

191,900

191,900

191,900

191,900

191,900

191,900

191,900

-

Hay

191,900

192,300

192,700

193,100

193,100

193,100

192,700

192,700

193,100

193,100

193,100

192,700

192,300

191,900

191,900

191,900

191,500

190,700

190,300

189,900

189,500

189,200

189,200

188,800

188,400

188,000

187,600

187,600

187,600

.187,200

187,200

June

186,800

186,800

186,800

187,200

187,200

186,800

186,800

187,200

187,200

187,200

187,600

188,000

188,400

188,400

188,800

188,800

188,800

188,800

188,800

188,800

188,800

189,800

188,400

187,600

186,800

186,100

185,300

184,900

184,100

183,400

-

July

182,200

151,500

180,400

179,600

179,600

177,700

176,^00

175,500

174,100

173,003

171,900

170,800

169,400

168,000

166,500

165,100

164,100

162,700

161,000

160,000

158,300

156,900

155,300

154,000

152,300

151,000

149,400

148,100

146,600

145,000

143,500

Aug.

142,200

140,700

139,500

138,000

136,500

135,700

134,500

133,300

132,200

131,100

129,900

129,100

128,000

126,900

126,000

124,900

123,800

128,70* in, 700

120,600

120,000

119,000

117,900

117,100

116,000

115,000

114,200

113,200

113,100

111,100

110,300

Sept.

109,300

108,300

107,300

106,300

105,000

104,000

102,800

5.01,80-)

10O.8OO

99 , 900

~ 98,700

97,500

96 , 300

95,600

94 , 600

93,700

92,800

91,800

91,100

90,700

90,000

89,500

88,400

87,500

.86,800

86 , 200

85,300

84,600

84,000

83,100

-

Monthly gage height and contents, water year October 1946 to September 1947

Date

Dec. 31.. ..............

Calendar year 1946...

Feb. 28.............. ..

Sept. 30.. ..............

Water year 1946-47...

Gage height 

(feet)

-

134 3

132 9

121 3

97.9

-

Contents 

(acre -feet)

-

83,100

-

Change In contents 

during month 

(acre -feet)

+18,300

-27,200

-20,900
BIG WOOD RIVER BASIN 115

Big Wood River below Magic Dam, near Richfield, Idaho

Location.- Water-stage recorder, lat. 43°14', long. 114°22', in sec. 18, T. 2 S., R. 

IB E., half a mile downstream from Magic Dam and 18 miles northwest of Richfield.

Records available.- April 1911 to September 1947. 

Average discharge.- 35 years (1912-47), 404 second-feet.

Extremes.- Maximum discharge during year, 1,790 second-feet (regulated) May 5 (gage 

neignt, 5.78 feet); minimum discharge, 10 second-feet (regulated) Nov. 27 to Dec. 1. 

1911-47: Maximum discharge, 7,160 second-feet Apr. 13, 1943 (gage height, 13.31 

feet); no flow Feb. 3, 1915.

Remarks.- Records good. Many ranch diversions in upper drainage area. Plow regulated 

EyTMagic Reservoir (see preceding page).

Cooperation.- Water-stage recorder inspected and five discharge measurements furnished 

cy water District No. 7 AB.

Discharge, in second feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14 

13 

13 

13 

13

13 

13 

14 

14 / 

14

14 

14 

14 

14 

14

14 

14 

14 

13 

13

13 

13 

13 

13 

13

13 

13 

13 

12 

12 

12

Octo 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

Hay

June 

July 

Augu 

Sept

ffa

Nov.

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

187 

266 

450

573 

444 

178 

12 

11

11 

11 

10 

10 

10

Dec.

10

11 11 11 11

11 11 11 

11 11

1111 

11 11 11

11 

11 11 11 11

11 11 11 

11 11

11 11 11 

11 11 11

Jan.

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12 

12

Feb.

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

13

13 

13 

13

Month

lendar year 19'is 

ary

ter year 1946-47 .. ^ ...................

Mar.

13 

13 

13

13 

13

14 

14 

14 

15 

16

17 

17 

17 

17 

446

758 

975 

1,060 

985 

714

655 

655 

655

191 

18

19 

19 

20 

21 

24 

28

Apr.

114 

730 

790 

936 

698

629 

529 

403 

394 

435

408 

390 

408 

553 

703

882 

970 

948 

936 

954

965 

1,030 

1,050 

924 

870

858 

858 

858

812 

812

Secondroot-days

412 

2,377 

340

198,944

354 

340 

7,449 

21,847 

31,570 

18,632 

25,129 

18,746 

16,071

143,267

May

774 

807 

918 

1,240 

1,610

1,630 

1,520 

1,500 

1,560 

1,620

1,530 

1,360 

1,030 

870 

852

802 

774 

763 

758 

758

780 

812 

824 

824 

829

829 

829 

807 

790 

796 

774

Maximum

14 

573 

11

3,840

12 

13 

1,060 

1,050 

1,630 

T63 

858 

785 

604

1,630

June

730 

698 

666 

660 

634

604 

593 

598 

598 

563

510 

481 

471 

471 

471

476 

481 

510 

563 

623

640 

655 

687 

741 

763

758 

752 

752 

741 

736

Minimum

12 

10 

10

10

11 

12 

13 

114 

758 

471 

725 

548 

2O8

10

July

730 

725 

758 

768 

780

785 

785 

818 

834 

834

829 

846 

858 

858 

829

812 

816 

834 

834 

834

829 

824 

824 

824 

818

818 

818 

812 

807 

796 

79O

Aug.

785 

774 

763 

736 

687

660 

634 

619 

619 

614

614 

604 

583 

568 

568

573 

573 

573 

558 

553

553 

548 

548 

553 

553

553 

548 

553 

548 

558 

573

lleat

13.3 

79.2 

11.0

545

11.4 

12.1 

240 

728 

1,018 

621 

811 

605 

536

393

Sept.

593 

598 

598 

598 

598

598 

598 

604 

578 

568

568 

548 

544 

558 

563

553 

544 

524 

514 

514

514 

514 

514 

500 

495

495 

490 

490 

490 

208

Runoff in 

acre-feet

817 

4,710 

674

394, 60O

702 

674 

14,770 

43,330 

62,620 

36,960 

49,840 

37,180 

31,880

284.^00
116 BIG WOOD RIVER BASIN

Big Wood River at flooding, Idaho

Location.- Water-stage recorder, lat. 42°57', long. 114°43', in NE^NE^- sec. 31, T. 5 S., 

H. 15 E., 30 feet downstream from highway bridge and half a mile north of Gooding.

Records available.- June 1896 to October 1899 (published as Malade River at Tcponis), April 

iyai to septemoer 1947, except for winters.

Extremes.- Maximum discharge during year, 792 second-feet Apr. 18 (gage height, 4.02 

reet); no flow for long periods.

1921-47: Maximum discharge recorded, 5,120 second-feet Apr. 13, 1943 (gage height, 

10.21 feet); no flow for long periods in each year.

Remarks.- Records good except those computed from staff-gage readings, which are fair, and 

tftose for periods of no gage-height record, which are poor. Many diversions above and 

below station for irrigation. Plow regulated by Magic Reservoir (see p. 114) and affected by deliveries from Milner-Gooding canal which diverts from Snake River.

Cooperation.- Water-stage recorder graph and four discharge measurements furnished by Water 

District No. 7 KB.

.9

1.0

Rating tables, water year 1946-47 S&ase height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1-5, Apr. 18-20)

Oct. 1 to Apr. 17

1.2 

1.4

15 29- 2.0 

2.4 

2.8 

3.2

114

202

308

440

1.2 

1.4 

1.6

Apr. 18 to Sept. 30

1.9 

2.2 

2.6

116

171

267

3.0 391

3.5 585

4.0 805

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

T

8

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

20

alO

al

hi

_

-

-

-

-

_

-

_

_

-

_

_

-

_

-

_

_

-

_

-

_

_

-

_

-

-

Nov. Dec.

to

Jan. Feb.

h!78

_

-

-

Month

October 1-5. ...................... . .

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

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

Calendar year ......................

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

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

March il-si ......................

May'1. ............................ .... .

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

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

Augu 

Sept

St. ....................................

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

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

liar.

.

_

_

-

-

_

_

.

_

-

f29

34

f20

f20

f22

a!4

f!46

508

576

524

320

305

317

329

107

f!6

hlO

a3

al

0

0

Apr.

0

0

59

460

544

354

338

232

142

138

166

144

106

110

222

338

426

684

674

692

670

473

509

413

316

275

251

207

178

159

-

Secondfoot-days

71

-

3,301

9,280 

5, 948

2 , 689

1, 849

1,490 

1,731

-

May

123

8

52

59

209

549

5.

4

4'

53

23

L2

537

605

5

3

2(

15

51

39

70

102

1]

f

f

0

32

2

77

81

(

(

>7

>7

58

57

56

t

(

^

12

3

>6

12

61

Maximum

39

~

-

576

692 

605

159

74

68 

75

-

June

75

85

94

94

90

90

91

111

138

142

159

159

110

94

84

85

68

57

56

57

79

81

74

75

78

78

74

72

68

71

-

Minimum

1

~

.

0

0 

42

56

50

30 

42

-

July

66

57

51

50

54

58

61

67

62

61

62

57

56

54

53

54

52

56

58

62

63

58

59

54

58

61

71

74

66

68

66

Aug.

61

57

59

68

62

62

54

52

51

50

62

66

67

48

35

31

30

33

38

39

39

38

40

44

50

47

44

44

40

39

40

Mean

14.2

~

-

157

309 

192

59. 6

48.1 

57.7

-

Sept.

42

44

42

44

47

47

46

51

56

59

54

56

57

54

59

59

64

72

66

70

75

62

61

61

58

56

58

63

74

74

Runoff in 

acre-feet

141

~

.

6,550

18,410

5 330

3 ',670

2,960 

3,430

-

t Field observation made on this day.

a No gage-height record; discharge interpolated, or computed on basis of Information furnished by 

Water District No. 7 AB.

f Computed on basia of partly-estimated gage-height record, 

h Computed from staff-gage reading.
BIG WOOD RIVER BASIN 117

Big Wood River near Gooding, Idaho

Location.- Water-stage recorder, lat. 42°54', long. 114°48', in sec. 21, T. 6 S., R. 14 

E., at Hudson Ranch, 2 miles downstream from bridge on Bliss-Gooding highway, 3f miles 

downstream from Little Wood River, 5 miles upstream from diversion dam for King Hill 

project, and 6 miles southwest of Gooding.

Records available.- March 1916 to September 1947 (fragmentary 1922-37, 1941, 1942).

Extremes (regulated).- Maximum discharge during year, 1,050 second-feet Apr. 18; maximum 

gage neignt, b.2b feet Feb. 13 (ice jam); minimum discharge, 12 second-feet July 16 

(gage height, 0.96 foot); minimum daily, 16 second-feet May 3.

1916-47; Maximum discharge, 5,220 second-feet Apr. 14, 1943 (gage height, 9.80 

feet); no flow at times in many years.

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

which are poor. Diversions above and below station for irrigation. "Flow regulated by 

Magic Reservoir (see p. 114) and affected by deliveries from canals diverting from 

Snake River at Milner.

Cooperation.- One discharge measurement furnished by Water District No. 7 AB.

Rating table, water year 1946-47, except periods of ice effect 

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

(Shifting-control method used June 8 to July 27, 

Aug. 4 to Sept. 26)

1.0 14 2.0 107

1.1 19 2.5 185

1.3 32 3.0 271

1.5 48 3.5 365

1.7 68 4.0 480

4.5 620

5.0 780

5.5 970

Discharge, in aecond-feet, water year October 1946 to September 194T

Day

1

2

3

4

5

6

7

8

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

119

110

107

110

116

116

118

113

110

126

124

122

124

124

124

124

124

131

131

132

136

140

140

140

140

143

145

132

140

139

Nov.

142

134

130

131

132

132

114

84

78

136

137

139

134

134

134

131

136

106

76

92

174

253

339

302

226

128

158

161

143

140

-

Dec.

134

131

131

 131

136

137

137

150

139

142

140

140

136

137

136

131

108

94

b96

99

100

126

137

139

148

145

124

b85

b80

b75

a65

Jan.

b65

b65

b60

b65

h70

h7S

b75

 89

110

hi 50

hi 10

b80

b75

b70

a 50

b55

b60

b65

b70

b75

b80

b90

hi 31

a!30

hi 28

h!22

d!20

h!22

h!18

*112

108

Feb.

107

110

112

108

134

183

187

b!45

b!25

119

125

147

b550

555

475

382

318

210

179

171

159

161

153

147

169

167

158

151

-

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ................. ....

Mar.

150

167

169

169

169

167

147

124

124

156

386

234

177

190

194

169

 202

665

794

745

544

511

528

511

330

177

145

126

190

195

199

Apr.

Secondfoot-days

3,875

4,461

3,809

106,535

2, 798

5,707

8,754

13,562

5 9 3O

6^033

1 1 162

1,860

2,721

60,672

202

226

221

625

808

641

558

483

384

337

359

330

296

280

316

443

553

862

938

906

840

626

561

493

369

294

231

174

125

81

May

5E

4E

IE

22

9!

496

58]

43E

39.

45E

56

584

47C

29£

14C

12'

12E

10]

8E

6£

5J

5'

5f

5C

4C

4f

5

9(

11C

9

11

Maximum

145

339

150

3,270

150

555

794

938

584

397

101

116

150

938

June

153

188

217

244

248

243

234

266

291

275

341

397

322

291

253

239

204

187

134

84

131

163

148

142

100

103

108

113

107

107

Minimum

7J

7E

6E

2]

5' 10'

12^

8.

IE

8'

r

2

3

IE

July

101

79

49

30

28

39

45

34

26

18

32

29

24

22

20

18

17

25

28

34

40

35

39

36

38

39

41

52

44

48

52

Aug.

52

48

52

83

100

113

106

83

66

62

78

97

116

101

75

49

32

30

31

35

35

30

29

36

57

56

51

47

45

33

32

Sept.

36

38

36

35

44

64

60

74

86

92

90

83

93

100

108

108

114

140

131

132

150

130

113

113

96

81

79

88

99

108

-

 __ Runoff in Mean acre-feet

i 125 7,690

149 8,850

123 7,560

2->2 211,300

90.3 5,550

204 11,320

I 2^2 17,360

452 26,900

191 11,760

1 201 11,970

37.5 2,300

i 60.0 3,690

5 90.7 5,400

> 166 120,400

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of weather records.

h Computed from staff-gage reading.
118 WOOD RIVER BASIN

Yarm Springs Creek at Guyer Hat Springs, near Ketchum, Idaho

Location.- Water-stage recorder, lat. 43°41', long. 114°25', in Iffi£ sec. 15, T. 4 N., R. 

17 &., at Guyer Hot Springs, 2 1/8 miles upstream from mouth and 2.2 miles west of 

Ketchum.

Drainage area.- 96 square miles.

Records available.- November 1940 to September 1947. May 1920 to September 1921 at site 

a quarter or a mile downstream, published as Warm Springs Creek near Ketchim; records 

not equivalent.

Extremes. - Maximum discharge during year, 452- second-feet May 8 (gage height, 2.80 feet); 

minimum, 13 second-feet Dec. 17 (gage height, 0.77 foot).

1940-47: Maximum discharge, 696 second-feet May 30, 1943 (gage height, 3.36 feet); 

minimum, 6 second-feet Feb. 29, 1944 (gage height, 0.55 foot), ice jam upstream; 

minimum daily, 17 second-feet Dec. 17, 1946.

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

fair. Diversions above and below station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

48

64

51

47

45

44

44

44

41

41

40

41

40

39

39

39

39

38

39

38

41

44

50

44

42

42

41

40

39

39

36

Nov.

41

32

32

38

38

38

39

38

34

38

38

33

35

39

33

32

37

38

39

41

37

39

41

38

38

41

41

39

39

39

Dec.

35

38

37

40

39

39

37

35

37

36

37

37

37

37

37

30

17

24

32

37

38

37

37

35

36

37

37

30

34

28

30

Jan.

35

29

30

34

35

36

36

36

37

37

37

34

35

35

29

29

32

34

36

37

36

35

35

a36

a37

a34

a33

a32

31

34

34

Feb.

35

34

31

32

34

32

31

30

30

35

34

35

35

34

34

34

34

31

33

31

34

37

36

36

38

38

37

33

_

-

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

Septembe r ...............................

Water year 1946-47 .................. ...

Mar.

34

39

37

36

35

33

36

35

34

35

34

31

34

34

36

41

50

61

69

72

76

78

72

65

61

61

62

69

72

81

78

Apr.

75

73

71

66

64

62

61

62

62

65

66

73

98

135

158

155

166

164

164

169

171

164

160

151

141

145

162

178

183

180

-

Secondfoot-days

1 319

i',125

1,077

32,771

1,060

948

1,591

3,644

8, 298

3 999

1 899

l',220

1,042

27,222

May

195

253

331

366

363

370

399

429

414

342

287

272

256

236

224

221

224

227

230

233

236

236

230

224

224

227

230

224

205

195

195

Maximum

64

41

40

444

37

38

81

429

197

82

46

36

429

June

190

197

185

171

160

151

149

164

166

155

147

135

129

125

122

125

127

127

127

129

123

112

107

104

1OO

100

100

95

90

87

-

Minimum

36

32

17

17

29

30

31

61

195

87

46

35

33

17

July

82

79

78

78

75

73

72

71

72

71

68

66

64

64

61

60

60

57

56

53

52

51

51

52

50

50

47

47

47

46

46

Aug.

45

45

46

46

44

42

41

41

40

40

40

39

39

39

38

37

37

36

36

39

40

39

40

39

38

37

36

36

35

35

35

Mean

42.5

37.5

34-7

89.8

34.2

33.9

51.3

121

268

133

61.3

39. 4

34.7

74.6

Sept.

34

34

35

35

34

33

34

36

36

35

35

35

34

33

34

35

35

36

36

36

35

35

34

34

34

36

35

34

35

35

-

Runoff in 

acre- feet

2,620

2,230

2, '140

65,000

2,100

1,880

3,160

7,230

16,460

7,930

3,770

2,420

2,070

54,010

a No gage-height record; discharge computed on basis of weabhe 

of Big Wood River and Big Wood Slough at Hailey.

records and records for combination
BIG WOOD RIVER BASIN 119

Big Wood Slough at Hailey, Idaho

Location.- Water-stage recorder, lat. 43°31'00", long. 114°19'30", in sec. 9, T. 2 N., R. 

IB K., at highway bridge, an eighth of a mile northeast of steel highway bridge over 

Big Wood River and an eighth of a mile southwest of Hailey.

Records available.- June 1915 to September 1947. 

Average discharge.- 32 years, 116 second-feet.

Extremes (regulated).- Maximum discharge during year, 157 second-feet Mar. 21 (gage 

height, a.75 reetj; minimum, 6.3 second-feet May 5 (gage height, 1.32 feet).

1915-47: Maximum discharge observed, 419 second-feet June 6, 1921, from rating 

curve extended above 280 second-feet; maximum gage height, 5.55 feet (top of ice in 

well) Jan. 20-23, 1937; no flow May 8, 1931, Oct. 20 to Nov. 3, 1938.

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

which are poor. Flow controlled at inoperative power plant half a"mile cpstream to 

meet the requirements of irrigation diversion from slough and sewage dilirtion. Big 

Wood Slough is a natural channel of Big Wood River and its discharge plur the discharge of Big Wood River at Hailey (see p. Ill) is total discharge of .river at this 

point.

Cooperation.- Water-stage recorder inspected by Water District No. 7 AB.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

21

26

Oct.

49

52

50

50

49

49

49

47

46

45

44

43

42

39

38

37

38

38

37

36

35

36

36

36

37

39

37

58

104

104

101

Nov.

105

98

96

101

101

101

102

101

98

101

102

95

96

102

98

92

100

104

111

118

115

118

111

101

116

116

109

98

98

93

Dec.

89

90

93

95

 100

100

95

90

92

85

90

93

93

95

93

86

b62

b66

a 80

a 85

a 85

a 85

a 80

66

69

74-

78

72

59

bSO

b45

Jan.

b55

b50

b55

b65

b70

77

75

b75

a75

a75

b80

a75

a80

a 80

a65

a65

b70

a75

b70

b75

b80

b80

b80

b80

b80

b80

84

 81

78

b75

b80

Feb.

84

84

84

84

84

84

81

a82

a84

h87

a87

a87

a87

a87

h86

a85

a83

81

79

77

81

87

87

86

87

89

85

80

_

-

Month

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

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

Calendar year 1946 ......................

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

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

Water year 1943 47 ......................

Mar.

77

90

91

89

87

81

87

89

86

90

86

81

84

*87

91

97

106

116

123

128

136

140

144

119

66

65

65

66

66

68

68

Apr.

66

65

64

63

62

61

60

60

62

60

60

60

61

63

63

62

61

61

59

60

51

40

41

26

13

14

15

15

18

24

Secondfoot-days

3,097

2,535

30,104

2,675

25,718.6

May

26

21

10

14

7.6

43

86

86

68

51

47

51

48

43

40

39

41

43

43

43

43

44

43

43

43

42

44

44

42

40

41

Maximum

104

118

100

150

100

144

June

42

42

44

42

43

30

30

32

32

68

96

87

84

84

85

91

97

100

104

104

92

81

78

74

75

80

75

70

64

56

-

Minimum

35

92

45

28

77

78

7.6

July

58

61

68

69

64

64

65

66

63

58

54

47

44

42

41

39

36

31

33

32

48

73

71

64

62

59

55

55

53

53

54

Aug.

54

51

51

49

45

42

38

35

32

29

32

31

31

32

32

30

29

45

92

93

95

92

95

91

87

85

84

83

81

79

79

Mean

48.4

103

81.8

82.5

73.7

84.2

49.7

89.2

70.5

Sept.

78

78

79

80

80

79

83

87

87

87

86

84

83

84

85

85

95

98

98

100

100

96

95

93

93

97

98

98

97

92

-

Runoff in 

acre-feet

2,980

6,140

5,030

59,710

4,530

4,680

5,690

2,960

2,620

5,310

51,030

* Winter discharge measurement en made on this day .

a No gage-height record; discharge computed on basis of weather records 

ver at Hailey and near Bellevue and Harm Springs Creek at Guyer Hot Spri

b Stage-discharge relation affected by ic 

h Computed from staff -gage reading.

nd records for Big Hood 

ngs, near Kstchum.
120 BIG WOOD RIVER BASIN 

Camas Creek near Blaine, Idaho

Location.- Water-stage recorder, lat. 43°20', long. 114°33', in sec. 15, T. IS., R. 16 

E., a quarter of a mile north of Macon siding on Hill City branch of Oregon Short 

Line Railroad, three-eighths of a mile downstream from Willow Creek, 2-J- miles upstream from backwater of Magic Reservoir, and 4 miles southeast of Blaine,

Drainage area.- 618 square miles.

Records available.- May 1912 to September 1947 (no winter records prior to 1945). Discharge measurements only for 1922.

Extremes.- Maximum discharge during year, 1,340 second-feet Feb. 25 (gage height, 6.17 

I'eet); minimum recorded, 2.8 second-feet Sept. 6, 7 (gage height, 0.92 foot).

1912-47: Maximum discharge recorded, 9,780 second-feet Apr. 8, 1943; maximum gage 

height, 15.48 feet about Apr. 18, 1938, from floodmark; minimum discharge recorded, 

1.5 second-feet Aug. 29, 1940.

Remarks.- Records good except those below 10 second-feet, which are fair, and those for 

periods of no gage-height record, which are poor. Many small diversions above station; 

no appreciable regulation.

Cooperation. - Four discharge measurements furnished by Water District No. 7 AB..

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

15

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

8.7

24

17

14

13

12

12

13

13

12

12

12

12

12

13

12

13

13

13

13

13

15

2O

17

16

15

15

15

15

14

14

Nov.

15

14

13

14

15

14

15

15

15

15

15

14

14

15

15

14

14

16

23

31

31

34

41

38

38

44

40

39

41

40

Dec.

38

37

35

35

37

53

66

72

58

65

62

64

76

110

146

> 50

Month

Jan.

' 20

Feb.

30

227

247

230

209

220

228

207

179

191

220

280

346

638

768

619

445

_

_

-

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

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

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

Water year 1946-47 ....... . . .........

Note.- No gage-height record Dee. 17 to Fe

Mar.

333

269

218

176

162

146

136

141

145

193

39°

271

281

336

511

806

1,070

*1,190

1,160

1,000

817

716

632

538

505

414

365

357

308

336

365

Apr.

389

381

341

336

295

262

233

226

207

189

191

185

181

193

211

228

244

253

253

253

248

239

230

222

211

201

193

187

187

189

-

Secondfoot-days

432.7

702

1,754

88,054

620

5,614

14,289

7 , 158

4,570 

1, 813

233 . 8

100.7

100.1

37,387.3

b. 12, Feb.

May

183

177

191

207

216

213

216

216

213

213

207

211

205

197

181

161

140

126

115

108

97

92

87

82

78

71

65

76

78

75

73

Maximum

24

44

146

5,170

768

1,190

389

2 16

115

22

3.7

3.8

1,190

June

73

79

84

85

82

76

72

78

87

96

115

102

92

80

68

62

60

54

51

47

43

38

35

31

25

20

19

20

19

20

-

Minimum

8 7

13

3.5

136

18 1

65

19

3.8

3.0

2.8

2.8

July

22

18

15

13

11

11

9.4

8.4

7.2

6.9

8.7

10

7.5

6.3

5.6

5.8

6.0

5.8

5.8

5.2

5.2

4.4

4.2

4.0

4.0

3.8

3.8

3.8

4.2

4.0

3.8

Aug.

3.7

3.7

3.7

3.7

3.5

3.3

3.3

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.0

3.0

3.0

3.0

3.2

3.2

3.2

3.2

3.3

3.3

3.2

3.2

3.2

3.2

3.0

3.0

Mean

14.0

23.4

56.6

241

20.0

200

461

239

147

60.4

7.54

3. 25

s!34

102

Sept.

3.0

3.0

3.0

3.0

3.0

2.8

3.0

3.0

3.0

3.2

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.5

3.7

3.7

3.7

3.5

3.5

3.5

3.7

3.7

3.7

3.7

3.8

-

Runoff in 

acre-feet

858

1 , 390

3,480

174,600

1,230

11,140

28, 340

14,200

9,060

3,600

464

200

199

74,160

23; discharge computed on basis of weather

records and inflow-outflow studies for Magic Reservoir.
BIG WOOD RIVER BASIN 12 L

Lincoln Canal near Richfield, Idaho

Location.- Staff gage, lat. 43°10', long. 114°19', in sec. 9, T. 3 S., R. 18 E., at head 

of canal, 100 yards east of Shoshone-Hailey highway, 5j miles downstream from Magic 

Dam, and 12 miles northwest of Richfield. Recording gage at same location not 

operated during year.

Records available.- April 1925 to September 1947 (irrigation seasons only except 1937- 

3ET

Extremes.- Maximum daily discharge during year, 270 second-feet May 6, 10, 11; maximum 

gage height observed, 3.40 feet Aug. 19; no flow for long periods.

1925-47: Maximum discharge, 706 second-feet May 28, 1927 (gage height, 4.00 feet I, 

from rating curve extended above 600 second-feet; no flow during long periods in each 

year.

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

Canal diverts water from right bank: of Big Wood River in sec. 9, T. 3 S., R. 18 E., 

from which point it approximately parallels river for 10 miles to head of North 

Gooding Canal in sec. 15, T. 4 S., R. 18 E., where water is either diverted into North 

Gooding Canal or returned to Big Wood River. Canal is used to avoid larg? channel 

losses in natural bed of river. No diversions above station.

Cooperation.- Gage readings and seven discharge measurements furnished by Water District 

No. v AB.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

to

Nov. Dec.

Month

Jan. Feb.

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

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

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

Calendar year ......................

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

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

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

April 16-30. . . .............................

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

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

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

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

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

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

Mar.

to

Apr.

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

130

135

136

a!35

a!35

133

128

126

127

162

a!75

a!70

181

a!87

186

Secondfoot-days

_

_

2,247

5,905

4,490

6,076

4,850

4,690

-

May

184

152

a225

a250

266

a270

267

a2S5

257

a270

a270

267

a255

243

239

246

a235

a235

233

a225

195

195

187

a 180

alSO

177

al80

182

172

176

a!75

Maximum

_

_

187

270

189

219

176

172

-

June

alSO

144

a!44

144

a 143

142

al43

a!43

144

a!44

133

128

114

alls

alls

114

al!4

114

128

161

157

a!65

175

182

189

184

186

a!8S

a!87

187

Minimum

_

_

125

172

114

155

146

100

-

July

179

184

184

191

a20O

a21O

219

215

208

212

205

214

a210

205

a205

192

191

187

a!90

a!90

201

a200

198

196

191

a!90

a 190

189

189

165

a!75

Aug.

176

a!75

a!75

170

a!68

167

3160

150

alSO

alSO

151

150

148

151

151

a!48

a!49

151

151

146

150

153

a!52

a!52

156

alSO

162

157

159

a!6O

alS2

Mean

_

.

1EO

223

150

196

157

156

-

Sept.

167

156

164

162

167

a!67

a!67

167

alSB

170

172

153

a!58

a!58

161

a!61

161

161

153

a!51

a!51

151

alSO

145

a!48

151

alSO

alSO

150

alOO

-

Runoff in 

acre feet

_

_

4,460

13 , 700

8,910

12,050

9,640

9,300

-

t Field observation made on this day.

a No gage-height record; discharge computed on basis of 

sported diversions between stations,

481401 O - 50 - 9

'ecords for station near Shoshone and
122 BIG WOOD RIVER BASIN 

Lincoln Canal near Shoshone, Idaho

Locati,tion.- Staff gage and concrete control, lat. 43°05', long. 114°19', in se 

~., R. 18 E., a quarter of a miie upstream from outlet of canal, 7 miles W' 

field, 11 miles northeast of Shoshone, and 12-J- miles downstream from Magic 

to May 21, water-stage recorder at same site and datum.

in sec. 15, T. 4 

rest of RichDam. Prior

Records available.- May 1925 to September 1947 (1929-36, 1947, irrigation seasons only).

Extremes.- Maximum discharge during year, 240 second-feet May 6 (gage height, 1.40 feet); 

no now for long periods.

1925-47: Maximum discharge, 667 second-feet May 29, 1927 (gage height, 2.46 feet), 

from rating curve extended above 550 second-feet; no flow for long periods each year.

Remarks.- Records good. No record of domestic flow in November or of leakage during 

nonirrigation season. Canal diverts water from right bank of Big Wood River in sec. 

9, T. 3 S., R. 18 E., from which point it approximately parallels river for 10 miles 

to head of North flooding Canal in sec. 15, T. 4 S., R. 18 E., where water is either 

diverted into North flooding Canal or returned to Big Wood River. Canal is used to 

avoid large channel losses in natural bed of river. Five ditches have rights to 

divert 12.5 second-feet above this station for irrigation.

Cooperation.- Water-stage recorder graph, staff-gage readings, and five discharge measurements furnished by Water District No. 7 AB.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

18

O

0

0

o

0

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0

0

0

0

0

o

o

0

0

0

o

Nov. Dec. Jan. Feb.

Month

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

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

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

Calendar year ......................

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

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

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

April 16-30. ...............................

Mav Hay. .......................................

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

July 

Augu 

Sept

St.... .................................

amber. ............. .......

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

Mar.

to

Apr.

_

-

_

-

-

112

131

134

129

129

129

hl08

106

102

114

140

136

143

150

ISO

-

Secondfoot-days

18

_

_

.

~

1 913

6*053

3 845 

s'465 

4,236

4 312

-

May

152

157

204

216

231

237

234

228

231

234

234

231

222

21O

207

207

207

21O

210

207

177

172

167

162

162

162

164

162

152

152

152

Maximum

18

_

.

~

~

150

237

167 

19O 

162

16O

-

June

138

131

125

123

123

123

123

123

123

121

114

102

93

98

97

95

93

93

112

131

129

140

ISO

143

167

167

167

167

167

167

-

Minimum

0

_

.

"

102

152

93 

157 

121

131

-

July

162

162

162

167

172

182

19O

190

188

185

188

188

188

188

190

174

172

170

170

17O

172

180

177

177

177

177

177

177

174

162

157

Aug.

157

162

160

157

143

138

136

129

129

129

129

129

129

129

121

125

131

131

131

131

131

131

131

131

134

140

140

143

143

143

143

Mean

0.6

_

.

"

~

~

195

128 

176 

137

144

-

Sept.

143

143

145

147

154

154

154

154

154

157

160

152

145

145

147

147

147

147

143

138

138

138

138

136

131

131

131

131

131

131

Runoff in 

acre- feet

36

_

.

~

3,790

12,010

7,630 

10,840 

8,400

8,550

-

t Field observation made en this day. 

h Computed from staff-gage reading.
BIG WOOD RIVER BASIN 123

Thorn Creek spillway near Gooding, Idaho

Location.- Water-stage recorder, lat. 43°01', long. 114°37', in sec. 6, T. 5 S., R.

 ib E., 600 feet downstream from point of diversion from North Gooding Canal, 900 feet 

upstream from Thorn Creek, and 1\ miles northeast of Gooding.

Records available.- April 1928 to September 1947 (prior to 1937, irrigation seasons 

~only).

Extremes (regulated).- Maximum discharge during year, 328 second-feet Apr. 18 (gage 

"height, a.5U reet); no flow for long periods.

1928-47: Maximum discharge, 447 second-feet Apr. 24, 1938 (gage height, 2.90 

feet); usually no flow during ncnirrigation seasons.

Remarks.- Records good except those for Oct. 2, which are poor. Spillway diverts from

 North Gooding Canal and discharges into Thorn Creek in sec. 6,.T. 5 S., R. 16 E. 

Irrigation diversions from Big Wood River below Thorn Creek are served in part by 

this water carried successively through Lincoln and North Gooding Canals to minimize 

channel losses in natural bed of river.

Cooperation.- Water-stage recorder graph and six discharge measurements furnished by 

water 'District No. 7 AB.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

31

f20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0

0

0

o

0

0

o

Nov.

0

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

12

32

129

118

184

144

111

f!2

0

0

0

o

0

-

Dec. Jan. Feb.

Month

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

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

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

Calendar year 1946 ......................

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

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

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

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

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

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

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

August .....................................

September. ........... ....................

Water year 1946-47 ......................

Mar. Apr.

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

19

273

278

278

237

173

154

129

140

132

127

134

152

158

-

Secondfoot-days

51

742

O

21,199

0

0

0

2,384

4,006

4,271

4,264

3,466

3,187

22,371

Hay

148

125

125

132

138

140

130

96

90

101

106

108

109

108

114

177

177

152

152

152

156

144

142

134

134

132

108

125

116

108

127

Maximum

31

184

0

331

0

0

O

278

177

204

169

140

127

278

June

129

132

138

142

140

142

138

142

162

182

204

184

156

144

134

129

118

108

108

123

140

134

130

144

148

144

144

148

142

142

Minimum

0

0

0

o

0

o

0

0

90

108

120

86

94

O

July

132

129

120

120

127

134

134

142

140

140

142

138

138

134

132

130

129

136

140

146

138

138

136

136

138

142

152

169

144

146

142

Aug.

140

132

136

136

132

132

123

125

123

123

134

140

130

101

90

86

87

99

99

99

98

96

96

104

104

102

104

102

99

98

96

Mean

1.6

24.7

O

58.1

0

0

0

79.5

129

142

138

112

106

61.3

Sept.

99

99

98

101 106~

108

108

113

116

114

104

109

106

113

113

108

113

108

101

106

108

96

102

102

94

98

99

104

114

127

Runoff in 

acre-feet

101

1,470

0

42,040

0

0

O

4,730

7,950

8,470

8,460

6,870

6,320

44,370

f Computed from partly-estimated gage-height record.
124 BIG WOOD RIVER BftSIN

LJttle Wood River at Campbell Ranch, near Carey, Idaho

Location.- Water-stage recorder, lat. 43°28', long. 114°03', in SW^NW^ sec. 35, T. 2

 N . , R. 20 E., at Campbell Ranch, above flow line of Little Wood Reservoir, 1? miles 

downstream from High Five Creek, 2i miles downstreim from Muldoon Creek, 11 miles 

east of Bellevue, and I 5 miles northwest of Oarey.

Drainage area.- 967 square miles.

Records available.- February 1920 to September iy"e (published as Little Wood River near

 Carey); March 1941 to December 194?, April 1944 to September 1947 (no winter records 

except 1921-24,1926)

Extremes.- Maximum discharge during year, 918 second-fe^ May 4 (gage height, 3.33 feet), 

from rating curve extended above 480 second-feet- minimum recorded, 32 second-feet 

Sept. 6, 7 (gage height, 1.04 feet)..

19?0-26, 1941-42, 1944-47: Maximum discharge recorded, 1,420 second-feet Apr. 10, 

1945 fgSge height, 4.31 feet, former site and datum) ; minimum, 14 second-feet Aug. 29, 

30, 1926.

Remarks.- Records good. Flow may be slightly regulated by Campbell Reservoir (capacity,

 y.VUO acre-feet) on unnamed tributary. Diversions for irrigation from Muldoon Creek.

Cooperation.- Water-stage recorder inspected by Little Wood Reservoir Co. and Water 

District No. 11C.

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Oct. 1-14)

1.0

1.1

1.2

1.3

1.4

1.6 

1.8 

2.0

84

128

180

242

2.3 

2.6 

2.9 

3.2

354

498

662

840

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

64

143

114

105

103

92

90

88

82

79

79

79

77

75

73

71

73

71

71

70

71

77

90

80

79

80

80

79

75

73

68

Nov.

75

66

60

68

71

70

71

71

70

68

68

60

64

70

68

60

66

70

38

110

75

88

99

75

66

b82

82

80

77

73

-

Dec.

66

tea

71

71

79

88

82

70

73

71

75

77

79

80

b78

53

-

-

_

-

_

-

-

-

-

_

-

-

-

-

-

Jan. Feb.

Month

October. ...................................

November. ..................................

December 1-16 ...............................

Calendar year ......................

January ....................................

February ...................................

March 12-31 ...............................

April ......................................

May........................................

June .......................................

July.... ...................................

August .....................................

September. .................................

Water year ......................

Mar.

.

_

_

-

_

_

_

-

.

*73

73

79

94

128

175

229

266

291

329

372

418

346

309

329

329

350

418

645

503

Apr.

413

399

342

294

259

245

229

223

223

229

229

242

287

363

437

472

498

514

462

462

472

442

399

386

358

368

394

437

428

413

-

Secondfoot-days

2,551

2,211

1,186

_ 

^

5,756

10,919

15,035

7,246

3,151

1,432

1,144

-

May

413

514

685

846

834

810

804

822

786

656

551

503

447

418

372

358

363

358

350

363

372

381

346

338

342

342

346

338

313

306

358

Maximum

143

110

88

-

_

645

514

846

338

146

82

44

-

June

338

321

302

283

266

252

252

302

309

276

273

249

236

232

242

259

273

269

266

266

220

198

189

186

189

192

177

156

140

133

-

Minimum

64

60

58

-

_

73

223

303

133

52

36

33

-

July

136

140

146

143

133

138

138

140

138

128

126

112

107

103

101

97

94

88

86

86

86

84

82

77

75

71

68

64

60

52

52

Aug.

51

48

51

56

52

48

46

44

44

43

44

43

42

41

41

41

39

37

37

43

82

71

56

50

46

42

41

41

39

37

36

Hern

£2.3

73.7

74.1

-

_

288

364

485

242

102

46.2

38.1

-

Sept.

36

36

35

35

34

33

34

37

37

37

39

38

37

35

37

36

38

43

43

44

44

44

42

39

39

39

39

38

38

38

Runoff in 

acre-feet

5,060

4,390

2,350

-

_

11,420

21,660

29,820

14,370

6,250

2,840

2,270

-

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
Little Wood Elver near ''arey, Idaho

.Location.- Water-stage recorder, lat. 43°23', long. 114°00', in Ej sec 30 T 1 N 

K- I*- E - a third of a mile upstream from West Canal, 1 1/3 miles upstream from ' 

East Canal, 2 miles downstream from Little Fish Creek, 3 miles downstreati from 

Little Wood Reservoir, and 6 miles northwest of Carey.

Drainage area.- 312 square miles.

Records available.- April 1904 to May 1905, September 1926 to September 1947.

Average discharge.- 18 years (1926-27, 1929-42, 1943-47), 127 second-feet.

Extremes (regulated) - Maximum discharge during year, 766 second-feet May 5 (gage height, 

Jj.ua reec) ; minimum daily, 5 second-feet Feb. 4. "

_1904-5, 1926-47: Maximum discharge, 6,000 second-feet (due to failur3 of reservoirs on Little Fish Creek) Apr. 20, 1938 (gage height, 12.07 feet, datum then in 

use, from floodmark), from rating curve extended above 1,800 second-feet; minimum 

1 second-foot Jan. 26, 1945; minimum daily, 3.0 second-feet several datfs during 

November, December 1943, January 1944.

Remarks - Records good except those for periods of ice effect or no gage-height record 

which are fair. Regulation and diversions above station for irrigation Storage in 

Little Wood Reservoir (capacity, 10,000 acre-feet), 3 miles above station, began 

beb. l*. 1941. Plow is also affected by Condie, Cameron, and Howard Reservoirs (combined^ capacity, 990 acre-feet) on Little Fish Creek. Capacities are as shown in llth 

Biennial Report of Department of Reclamation, State of Idaho.

Cooperation- Water-stage recorder inspected by Little Wood Reservoir Co and Water 

District No. 11C.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

62

62

62

61

61

61

61

61

61

81

94

94

94

94

94

94

94

94

94

94

94

94

94

94

94

94

94

94

94

94

94

Nov.

89

86

86

86

86

86

84

84

84

84

84

82

82

82

82

82

74

61

62

66

62

61

62

62

61

61

61

61

62

62

~

Dec.

62

62

62

62

64

69

66

65

64

64

64

66

69

69

56

53

50

*50

50

45

32

25

£4

22

17

17

17

17

17

17

17

Jan.

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

17

14

13

17

17

15

7

6

6

6

6-.0

Feb.

5.5

5.5

5.5

*5

6

6

6

6

6

5.8

5.8

5.8

10

12

13

22

22

14

10

8

30

65

61

40

37

34

45

56

-

-

-

Month

October. ...............................

November. ..................................

December. ..................................

Calendar year 1946 ................. ...

January ....................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July. .....................................

August .................................

September. ............. ...................

Water year 1946 47 .....................

Mar.

52

50

49

49

48

42

37

39

38

56

50

42

*42

48

53

60

154

240

291

323

357

415

482

399

344

357

357

386

429

640

538

Apr.

504

471

405

344

303

280

266

258

243

235

258

261

294

366

439

478

489

500

475

468

475

453

426

405

386

386

405

436

446

429

-

Secondfoot-days

2, 607

2,227

1,434

58, 52 1

464.0

6, 525

11,581

14,377

7,407

6,325

2, 765

1,811

58,070.9

May

422

471

628

725

746

721

717

738

721

632

538

497

450

436

386

363

360

363

357

357

366

376

357

335

335

338

341

338

317

302

344

Maximum

94

89

69

1,010

17

56

640

504

746

332

232

159

84

746

June

332

329

308

283

266

253

245

288

308

277

277

256

238

232

2J8

251

266

274

269

272

238

208

196

205

205

208

188

168

161

168

-

Minimum

6 1

61

17

17

6.0

5

235

302

161

163

46

13

5

July

191

205

225

218

208

200

188

205

212

222

215

212

210

225

232

222

215

210

222

222

212

205

203

196

193

191

186

177

172

168

163

Aug.

159

145

145

143

133

124

110

105

99

99

98

89

86

84

82

81

80

80

81

91

87

69

50

47

47

46

46

49

70

70

70

Mean

84.1

74.2

46.3

160

15.0 19 . 6

210

386

464

247

204

89 . 2

60.4

159

Sept.

69

68

66

6S

72

84

84

84

84

82

81

80

78

69

69

68

65

66

65

65

65

62

49

13

30

ZO

25

39

26

16

Runoff in 

acre-feet

5,170

4,420

2,840

116, 000

920

1,090

12,940

22,970

28,520

14,690

12,550

5,480 

3, 5.90

115.200

* Winter discharge measurement ma 

Note.- No gage-height record Oct.

changes for Little Wood Reservoir.

to Jan. 10, Jan. 12-21, 27-30, Feb.

le on this day.

5-25; discharge computed on basis of range in stag? and gate 

Stage-discharge relation affected by ice Dec. 17, 18, 24, De 

4-9, 18-20.
126 BIG WOOD "RIVER BASIN

Little Wood River near Richfield, Idaho

Location.- Water-stage recorder, "lat. 43°03' , long. 114°08', in sec. 30, T. 4 S., R. 20

 K., half a mile upstream from Jim Byrne's Slough and heading of DIetrlch Canal, 1

mile east of railroad station at Richfield, and 14 miles downstream from Silver Creek.

Records available.- January 1911 to September 1947 (irrigation seasons only).

Extremes.- Maximum discharge during year, 261 second-feet Apr. 1 (gage height, 2.17

 feet); minimum recorded, 40 second-feet May 23 (gage height, 1.11 feet).

1911-47: Maximum discharge recorded, 868 second-feet May 3, 1938 (gage height, 

3.97 feet); minimum recorded, 7.6 second-feet June 24, 25, 1920 (gage height, 0.52 

foot).

Remarks.- Records good except those for period of no gage-height record, which are fair.

 Diversions above station for irrigation. Flow partly regulated by Little Wood Reservoir and four small reservoirs oh tributaries. River above Silver Creel- is dry, 

except during freshet seasons, because of channel losses and irrigation diversions 

above Carey.

Cooperation.- Water-stage recorder graph and six discharge measurements furnished by 

water District No. 11 AB.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

156

162

165

173

176

173

173

173

171

169

167

167

167

165

165

167

167

167

167

167

167

167

169

173

178

178

176

173

171

171

171

Nov.

171

171

169

169

169

171

171

171

171

171

171

169

167

167

167

167

167

167

169

173

182

192

192

182

180

185

178

173

171

171

"

Dec.

171

171

171

-

-

h!67

_

-

_

-

_

_

-

-

-

_

-

-

-

-

_ ;

-

-

-

-

.

-

-

-

-

"

Jan. Feb.

13S

_

-

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year ......................

Mar.

136

a!36

a!36

a!38

a!38

al38

aUO

142

142

144

146

165

160

154

152

154

158

156

158

182

198

213

227

238

238

221

221

221

218

221

241

Apr.

255

246

235

227

213

202

198

195

190

185

182

182

182

185

192

205

221

229

227

227

224

221

221

210

198

176

154

148

140

134

-

Secondfoot-days

5,251

5,194

-

_

5 432

6^004

3,110 

3,601

3 181

3, 596

4,064

-

Hay

125

115

110

112

133

148

136

124

120

129

134

134

136

138

140

131

118

101

100

82

52

43

44

45

52

59

59

65

69

76

80

Maximum

178

192

_

241

255

148

160

118

134

148

-

June

86

1OO

112

117

120

118

115

115

129

144

154

160

158

152

146

144

140

131

118

110

103

98

100

98

101

100

103

106

110

113

Minimum

156

167

-

_

13 

134

43

Q^36

84 

124

_

July

118

117

108

106

117

117

117

115

113

106

105

101

100

loo

98

98

98

100

101

103

103

100

100 '

98

97

93

92

90

92

92

86

Aug.

84

90

92

95

100

101

105

108

110

110

110

113

117

117

117

117

124

125

124

124

125

124

127

129

129

127

133

134

133

127

125

Mean

169

173

-

175

200

100

120

103

116 

135

_

Sept.

125

124

124

127

129

129

129

129

129

129

133

131

127

124

131

134

134

134

136

144

144

148

148

148

148

146

146

146

144

144

Runoff in 

acre-feet

10,420

10, 300

-

10,770

11,910

6,170

7,140

6,310

7 130 sioeo

.

a No gage-height record; discharge computed on basis of Information furnished by watermaster. 

h Computed from staff-gage reading.
BIG WOOD RIVER BASIN 127

Little Wood River at Shoshone, Idaho

Location.- Water-stage recorder, lat. 42°56', long. 114°24', in sec. 2, T. 6 S., R. 17 

 E., just upstream from diversion dam for town water supply and 40J feet upstream from 

highway bridge In Shoshone.

Records available.- April 1922 to September 1947 (irrigation seasons only)

Extremes.- Maximum discharge during year, 529 second-feet June 12 (gage height, 3.42 

feet); minimum recorded, 30 second-feet Nov. 18 (gage height, 0.64 foot).

1922-47: Maximum discharge recorded, 664 second-feet June 18, 1922; maximum gage 

height recorded, 4.49 feet June 11, 1944; practically no flow July 29, 1931, Oct. 3, 

1938.

Remarks.- .Records good except those for periods of no gage-height record, which are poor. 

Many diversions above and below station for irrigation. Plow affected by operation of 

Milner-Gooding Canal, which diverts from Snake River and crosses Little Wood River 

above station, by operation of several reservoirs above Carey, and by Big Wood River 

water deliveries through Byrne's Slough for Dietrich Canal via Little Wood River at 

Richfield.

Cooperation.- Water-stage recorder graph and seven discharge measurements fu-nished by 

water District No. 11 AB.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

5

6

11

13

15

16

18

21

26

Oct.

140

128

a!36

140

137

147

147

147

147

147

147

147

147

147

147

147

150

153

156

162

a!60

al58

a!56

a!54

a!52

150

Nov.

140

137

h!40

h!37

h!37

h!37

h!37

h!37

h!37

h!34

131

131

128

131

131

67

32

33

-

_

_

-

_

-

_

-

-

-

-

-

Dec.

Month

Ooto 

Noye

Jan. Feb.

125

-

_

-

ber. ...................................

mhar 1-19 ^ ........

December. ..................................

Calendar year ......................

March. .....................................

April ......................................

May. .......................................

June .......................................

July 

Augu 

Sept

St. ....................................

ember. .................................

Water year ......................

Mar.

131

131

131

131

131

100

80

80

78

80

S2

90

117

117

111

108

131

144

140

144

166

173

186

201

212

197

183

183

183

179

183

Apr.

204

243

239

231

220

208

193

190

183

179

176

173

166

162

166

173

212

292

328

340

331

311

349

384

412

375

344

351

328

347

-

Second 

foot-days

4,547

_

4 303

13,524 

13,145 

10 , 345

_

May

384

377

401

418

425

446

454

452

426

427

464

514

512

516

507

490

474

446

426

432

427

433

436

439

437

438

444

470

475

448

458

Maximum

162

_

468 

498 

400

_

June

463

473

485

483

477

471

446

456

465

463

497

4S4

449

437

428

431

431

404

349

391

452

466

462

420

431

452

452

452

451

459

Minimum

128

418 

373 

197

July

459

454

431

418

457

465

454

442

432

445

439

436

430

425

422

425

425

425

423

428

427

431

430

430

427

423

426

423

438

456

468

Aug.

460

460

473

498

497

473

456

451

442

448

473

472

453

425

396

381

373

381

384

381

379

381

398

400

396

390

390

386

383

375

Mean

147

~

436 

424 

345

Sept.

375

377

381

393

390

400

390

372

377

377

379

368

364

370

368

353

349

337

314

303

292

272

272

272

268

268

197

Runoff in 

acre- feet

9,020

~

26,820 

26,070

a No gage-height reoo"d; discharge interpolated. 

h Computed from staff-gage reading.
128 BIG WOOD RIVER BASIN

Silver Creek near Picabo, Idaho

Location.- Water-stage recorder, lat. 43°17', long. 114°01', In sec. 1, T. 2 S., R. 20 E., 

lj miles downstream from drainxiiteh of Blalne County Drainage District No. 1 and 

3'miles southeast of Picabo.

Records available.- May 1920 to September 1947 (1922-35, Irrigation seasons only). 

Average discharge.- 14 years (1920-22, 1935-47), 147 second-feet.

Extremes.- Maximum discharge during year, 212 second-feet Nov. 21, 22; maximum gage height 

recorded, 3.48 feet Jan. 7 (ice jam); minimum discharge, 68 second-feet May 20 (gage 

height, 1.00 foot).

1920-47: Maximum discharge, 312 second-feet Apr. 3, 1923; maximum gage height, 3.97 

feet Jan. 8, 1942 (ice jam); minimum discharge, 26 second-feet June 2, 1920 (gage 

height, 0.48 foot) .

Remarks.- Records good except those for periods of ice effect, which are poor. Many 

diversions above station for irrigation. Records of discharge do not include water 

bypassed around station at times by slough on right bank from which there is some 

diversion for irrigation.

Cooperation.- Water-stage recorder inspected during irrigation season and one discharge 

measurement furnished by Water District No. 11 AB.

Discharge, in second feet. water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

168

185

202

206

196

191

191

188

185

182

180

178

177

176

176

176

178

178

179

178

178

180

184

193

193

188

183

180

179

178

176

Nov.

177

176

176

175

174

175

176

179

181

181

179

177

176

174

174

175

173

173

180

195

209

208

197

195

200

194

188

184

184

184

Dec.

184

181

178

175

175

*178

187

190

183

176

173

172

172

174

179

180

171

150

150

150

155

155

153

152

151

154

158

158

154

142

138

Jan.

. 140

> 150

*146

142

140

Feb.

138

136

135

135

133

131

128

127

126

126

126

132

160

170

161

160

161

155

148

142

142

143

147

151

148

146

142

138

_

-

Month

October ..................................

November ................................. .

December .................... .............

Calendar year 1946 ...................

January. ..............................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .............. .......................

July. ......................................

August .............. .................... .

September ..................................

Water year 1946-47 . . ...................

Mar.

135

137

139

142

145

146

142

142

142

148

168

172

161

 158

159

168

168

166

164

162

159

157

157

156

152

148

146

143

142

145

150

Apr.

148

146

148

145

141

141

14O

138

138

136

133

132

132

131

129

128

127

125

125

125

124

124

123

121

121

120

120

119

119

117

-

Secondfoot-days

5,682

5,489

5,148

56,975

4,438

3,987

4,719

3 , 916

2,772

4,152

4,814

5,150

5,089

55,356

May

114

106

104

106

106

94

89

82

81

81

84

87

87

87

86

84

81

80

78

70

71

76

82

83

87

89

88

94

102

106

107

Maximum

206

209

190

228

170

172

148

114

178

179

179

209

June

1O9

111

113

114

111

110

112

116

124

128

131

139

142

142

146

145

144

143

143

143

143

142

142

149

155

161

170

173

173

178

-

Minimum

168

173

138

-

126

135

117

70

109

130

131

161

70

July

179

172

169

172

175

174

172

168

161

159

161

157

146

146

148

145

148

153

155

156

156

155

153

151

149

143

142

142

141

136

130

Aug.

131

135

142

151

156

159

162

165

164

162

164

168

172

172

172

171

170

168

167

167

170

177

180

178

178

177

177

176

176

174

169

Wear

183

183

166

156

143

142

152

131

89.4

138

155

166

170

152

Sept.

167

167

170

172

172

170

170

171

167

167

163

161

161

165

164

164

167

173

178

179

178

178

176

176

175

174

170

165

165

164

-

Runoff in 

acre-feet

11,270

10,890

10,210

113,000

8,800

7,910

9,360

7,770

5,500

8,240

9,550

10,210

10,090

109,800

* Winter discharge measurement made on this day.

Note.- Flow in bypass channel, which carries water around gage, measured as 20.6 second-feet 

Oct. 1; 18.6 second-feet Dec. 6; 7.OS second-feet Jan. 29; 14.9 second-feet Mar. 14; 5.55 secondfeet Apr. 16; 0.1O second-foot (estimated) May 28; 4.0 second-feet (estimated) June 24; 0.16 

second-foot (estimated) July 11; 4.10 second-feet Aug. 21. Stage-discharge relation was affected 

by ice Dec. 18-21, Dec. 30 to Feb. 3 (no gage-height record Jan. 12-28; discharge computed on basis 

of 1 discharge measurement and weather records).
BIG WOOD RIVER BASIN 129

King Hill Canal near Hagerman, Idaho

Location.- Staff gage, lat. 42°52', long. 114 0 55', in SW£ sec. 27, T. 6 S., R. 13 E., 

43U reet upstream from mouth of inverted syphon crossing Snake River, 1,000 feet 

downstream from heading at Idaho Power Co.'s canal, half a mile west of highway 

bridge over Big Wood River, and 3j miles north of Hagerman.

Records available.- March 1930 to September 1947 (irrigation seasons only except 1939 

and 1947).

Extremes.- Maximum discharge observed during year, 343 second-feet May 27 (gage height, 

3.ea reet); no flow or small flow from leakage at head gate when gates vere closed. 

1930-47: Maximum discharge observed, that of May 27, 1947; maximum fage height 

observed, 3.80 feet July 19-22, 26, 27, 1944; no flow or small flow from leakage 

at head gate during nonirrigation seasons.

Remarks.- Records good except those for periods when gates were closed, which are poor. 

Uage usually read twice daily during irrigation season. This canal, which is operated by King Hill Irrigation District to provide water for irrigation of its project, 

diverts from Idaho Power Co.'s canal, which in turn diverts from Big Wocd River 

(Malad Springs water).

Cooperation.- Gage readings furnished by King Hill Irrigation District.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

238

207

191

190

190

190

190

190

100

3

2

Nov.

. 1

-

Dec.

1

Jan.

 0.5

Feb.

 0.5

_

-

-

Month

October. ...................................

November . ........................ .........

December. ..................................

Calendar year ......................

January. ................................. .

February. ..................................

March. .....................................

April. .....................................

May. .......................................

June .......................... ............

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

0

96

171

Apr.

171

171

170

168

171

170

170

168

168

168

168

168

191

206

206

218

227

243

259

256

259

259

 259

267

295

292

295

295

300

-309

-

Secondfoot-days

1,741

30

31

-

15.5

14.0

267

6,667

10,139

8,475

9,191

8,463

8,510

53,543.5

May

309

309

309

324

326

326

329

312

310

324

336

333

333

326

331

326

322

333

334

324

333

336

338

333

336

333

336

338

331

322

327

Maximum

238

-

_

171

309

338

334

329

326

298

338

June

334

320

314

312

245

0

0

226

286

286

295

295

286

295

304

309

305

309

307

305

305

305

305

319

315

319

319

319

319

317

Minimum

_

-

_

0

168

309

0

6

O

275

0

July

319

319

309

319

319

324

327

329

329

329

327

327

327

327

324

326

329

329

326

322

319

315

315

315

317

317

226

6

6

251

317

Aug.

317

317

317

324

324

326

326

326

326

324

324

324

324

324

319

319

319

106

0

0

136

206

206

275

298

293

292

295

293

293

290

Mean

56.2

1

1

-

.5

.5

8.6

222

327

282

296

273

284

147

Sept.

293

298

298

295

295

295

295

295

293

288

283

275

281

281

281

283

283

275

275

276

276

276

276

276

278

278

278

278

278

278

Runoff in 

acre-feet

3,453

60

61

-

31

28

530

13.2SO

20,110

16,810

18,230

16,790

16,880

1O6.20O
130 CANYON CREEK BASIN 

Mountain Home feeder canal near Mountain Home, Idaho

Location.- Water-stage recorder and concrete control, lat. 43°13', long. 115'1 42 I , in sec. 

ae, T. 2 S., R. 6 E., 40 feet downstream from point of diversion from Cannon Creek and 

5 miles north of Mountain Home.

Records available.- April 1924 to September 1929, April 1931 to September 1917.

Extremes.- Maximum discharge during year, 112 second-feet June 21 (gage height, 1.52 feet); 

no llow Nov. 7-14.

1924-29, 1931-47: Maxiirum discharge, 226 second-feet Feb. 21, 1927 (gage height, 

2.18 feet, datum then in use), from rating curve extended above 120 seconi-feet; no flow 

at times during most years.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Canal diverts from Canyon Creek in sec. 36, T. 2 S., R, 6 E., and delivers water to Mountain Home cooperative canal, which heads in Mountain Home feeder 

canal half a mile below station, for irrigation of about 5,000 acres in Mountain Home 

Irrigation District. During nonirrigation season and at times when there is a surplus 

of water for irrigation, canal feeds directly into Mountain Home Reservoir. No diversion from canal above station; three small diversions between station and head gates of 

Mountain Home cooperative canal. Plow regulated by head gates in Canyon Creek and by 

Long Tom and Little Camas Reservoirs.

Cooperation.- Water-stage recorder graph furnished by Mountain Home Irrigation District.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.7

8.2

5.0

4.3

4.0

4.0

4.3

5.0

5.9

5.9

5.9

5.4

5.4

a4.7

4.0

4.0

4.7

5.0

a5

a5

a5. 5

a6

a7

a6

aS

a4

4.0

4.0

4.0

4.0

4.0

Nov.

3.7

b3.6

b3.5

D3.4

3.4

1.4

0

0

0

o

0

0

0

5.1

7.2

b6.0

5.9

6.4

7.2

9.0

8.6

8.6

8.6

9.0

9.0

10

13

a!2

a!2

a!2

~

Dec.

all

alO

a9

*a7 . ^

 a8

a!5

a20

a25

27

25

20

16

14

16

16

15

15

15

16

16

16

b!4

b!3

b!2

a!2

Jan.

. a!2

Feb.

i

I ^ _

> ao.

r

*14

13

12

13

14

14

14

26

45

35

38

37

40

a37

a 30

28

28

28

28

28

26

26

26

23

_

_

-

Month

October. ...................................

November . ..................................

December. ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April......................................

May...... ..................................

June .......................................

July..................... ..................

August ......................................

September. .................................

Water year 1946-47 ......................

Mar.

22

22

21

20

20

20

20

20

21

33

a42

a41

41

46

50

51

53

50

a45

39

38

38

39

38

a36

a33

31

30

30

29

32

Apr.

h31

a36

40

40

42

42

42

38

37

36

36

36

36

36

36

36

36

36

35

36

35

34

34

35

a4O

a50

58

58

58

83

-

Seccndfoot-days

153 . 9

168 . 6

431.7

14,388.8

372

671

1,051

1,228

2,457

1,641.3

1,853

1,405

1,148.4

12,580.9

May

86

88

88

87

a87

87

87

86

87

71

67

64

64

65

64

61

60

59

a75

80

89

90

96

101

101

103

99

87

65

61

52

Maximum

13'8 £

27

143

45

53

83

103

110

83

64

65

110

June

41

33

32

19

12

10

7.7

9.0

10

9.0

9.0

8.6

9.0

43

50

50

63

89

100

109

110

105

104

101

99

96

88

76

74

75

Minimum

4.0

0

0

_

20

31

52

7.7

33

32

3.4

0

July

74

76

74

69

58

56

55

55

61

65

64

63

69

75

75

83

82

78

70

60

42

42

51

58

56

48

44

41

36

33

40

Aug.

36

36

42

38

40

41

50

53

44

42

42

52

56

57

52

61

64

54

53

44

38

37

33

32

38

40

44

44

50

47

45

Mean

4 . 96

5 . 62

13.9

39.4

12.0

24.0

33.9

40.9

79.3

E4.7

E9.8

45.3

38.3

S4.5

Sept.

56

65

a64

a63

a62

a60

a59

a58

50

48

48

46

44

44

43

41

41

40

39

36

35

32

27

21

7.2

4.7

4.0

3.7

3.4

3.4

Runoff in 

acre- feet

305

334

856

28,520

738

1,330

2,080

2,440

4,870

3,260

3,680

2,790

2,280

24,960

» Winter discharge measurement made on this day.

a Ho gage-height record; discharge Interpolated, or computed on basis of weather records, 1 discharge measurement, records for Mountain Home cooperative canal, and records for stations on nearby 

streams.

b Stage-discharge relation affected by ice.

h Computed from staff-gage reading.
CANYON CREEK BASIN 131

Mountain Home cooperative canal near Mountain Home, Idaho

Location.- Water-stage recorder and concrete control, lat. 43°12 I , long. llb°42', in 

sec. 36, T. 2 S., R. 6 E., at Lamberton weir, 300 feet downstream from point of 

diversion from Mountain Home feeder canal and 4-| miles north of Mountain Home.

Records available.- April 1924 to September 1929, April 1931 to September 1947 (dlscontinued).

Extremes.- Maximum dally discharge during year, 104 second-feet May 25; no flow for long

1924-29, 1931-47: Maximum discharge, 109 second-feet July 16, 1925 (fage height, 

1.69 feet, datum then in use); no flow during nonlrrlgation seasons except occasional 

stock water runs and leakage through gates.

Remarks.- Records good except those for periods of partly estimated or no gage-height 

record, which are poor. No diversions between station and head of canal. Flow regulated by gates at point of diversion from Mountain Home feeder canal. W^ter is used 

for irrigation of about 5,000 acres in Mountain Home Irrigation District.

Cooperation.- Water-stage recorder graph furnished by Mountain Home Irrigation District. 

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

6

11

16

19

21

22

26

30

Oct. Nov. Dec. Jan. Feb.

Month

December. ..................................

Calendar year 1946 ......................

March

May........................................

September. .................................

Water year 1946-47 ......................

Mar. Apr.

0

0

0

0

0

0

0

0

0

0

0

0

f!2

f24

f24

f24

h24

f24

f23

f23

f22

f21

f21

h21

a21

34

40

45

52

64

-

Secondfoot-days

0

0

0

0

0

0

0

519

1,745

1,176.9

1,640

1,284

888.3

7,253.2

May

f61

f55

f43

f43

f43

f43

f43

f43

f43

f43

f43

43

30

22

22

22

f35

f47

f53

71

82

86

91

95

f!04

h98

h98

f78

f69

f53

f43

Maximum

0

0

0

Q

0

0

0

64

104

93

78

56

63

104

June

f35

28

26

18

9.8

7.5

6.1

6.4

2.5

0

0

0

2.0

8.P

12

24

46

52

70

84

91

92

93

h89

78

69

57

55

55

60

Minimum

0

0

0

0

0

0

0

0

22

0

28

30

0

July

h65

a64

a62

60

52

50

48

48

53

58

57

57

64

69

71

78

76

72

64

55

38

35

44

50

48

42

36

a33

28

28

a35

Aug.

a 30

a30

a37

a34

h36

a38

a43

a47

a40

a38

a38

h51

50

51

47

52

56

47

49

43

38

36

31

31

36

37

41

42

47

45

43

Mean

0

0

0

0

0

0

17.3

56.3

39.2

52.9

41.4

29.6

19.9

Sept.

54

h63

a62

a61

a60

a58

a57

56

50

47

44

40

39

38

37

36

36

26

19

2.8

\ a. 2

-

Runoff in 

ao re-feet

0

0

0

0

0

2,330

3,250

2,550

1,760

14,380

a No gage-height record; discharge Interpolated, OP computed on basis of records for Mountain 

feeder canal.

f Computed on basis of partly estimated gage-height record, 

h Computed from staff-gage reading.
132 BRUNEAU RIVER BASIN

Bruneau River near Winter Camp Ranch, Idaho

Location.- Water-stage recorder, lat. 42°38>, long. 115°43 I , in sec. 13, T. 9 S., R.

 b E., at Roberson Trail crossing, 6 miles downstream from East Fork, 11 miles northwest of Winter Camp Ranch, and 11 miles south of Hot Spring. Datum of gage is 

3,015.68 feet above mean sea level, datum of 1929.

Records available.- November 1946 to September 1947.

Extremes. - Maximum disrtwr-ge during period, 1,230 second-feet May 9 (gage height, 3.07 

t'eet); minimum daily, 25 second-feet Dec. 31; minimum gage height, 0.49 foot Sept. 7.

Remarks.- Records good. Several small reservoirs and many small diversions for irrigation above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

6

8

11

16

21

25

26 

27 

28

30

Oot. Nov.

_

-

-

-

-

-

-

-

-

-

-

-

106

99

91

85

110

106

126

131

133 

133 

154

167

~

Dec.

151

148

*138

133

128

128

138

164

154

141

126

126

128

128

124

106

82

60

95

119

116

114

99

99

114 

114 

101

71 

40

Jan.

50

50

48

48

51

60

70

88

86

87

92

93

91

82

68

58

58

56

62

78

98

102

97

96

102

110 

110 

101

93 

86

Feb.

90

102

110

106

104

105

110

115

120

130

137

138

138

225

281

281

303

268

222

202

181

172

167

161

175

170 

154 

151

~

Month

December ...................................

Calendar year ......................

April. .....................................

May. .......................................

September. .................................

The period. ..............................

Mar.

136

136

143

141

133

126

121

119

124

119

128

151

154

141

151

192

255

*342

389

399

378

368

384

421

389

347 

323 

294

294 

332

399

Apr.

399

378

357

362

323

313

323

352

389

426

405

389

384

431

512

582

627

653

666

620

608

575

546

496

468

431 

415 

431

468 

512

-

Seccndfoot-days

2 122

3,534

.

987

-

May

546

646

898

1,060

1,080

1,080

1,140

1,170

1,190

1,140

1,040

898

838

796

726

686

679

705

719

740

761

761

740

698

679

666 

672 

719

698 

660

608

Maximum

164

.

39

_

June

608

594

569

541

507

474

452

496

541

608

582

569

582

588

601

601

588

620

594

569

529

474

426

399

384

373 

384 

357

318 

286

-

Minimum

25

.

28

.

July

2 r 9

244

233

222

212

199

186

175

167

159

151

138

131

126

114

112

110

106

99

93

91

87

80

78

74 

72 

69

66 

64

62

Aug.

60

53

62

60

56

53

51

44

42

42

43

42

41

41

41

38

38

36

36

37

36 

35 

33

31 

30

29

Hern

125

114

.

32.9

.

Sept.

31

31

29

29

29

28

29

31

31

31

31

39

36

36 

33

35 

35

Runoff in 

acre-feet

7,010

.

27 450

1,960

160,900

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Dec. 19, 20, Dec. 30 to Feb. 11.
RRUNEAU RIVER BASIN 133

Bruneau River near Hot Spring, Idaho

Location - Water-stage recorder, lat. 42°46', long. 115°43'30", in SE£ sec. 34, T. VS., 

R. t> E., at Dunham Ranch, 1 mile downstream from Hot Creek, l| miles south of Hot 

Spring post office, 9 miles southeast of Bruneau, and about 16 miles downstream from 

East Pork. Datum of gage is 2,598.5 feet above mean sea level, datum of 1929 (fro.n 

stadia level circuit by Topographic Branch in 1945).

Records available.- July 1909 to March 1915, October 1943 to September 1947.

Extremes.- Maximum discharge during year, 1,230 second-feet May 9 (gage height, 6.43 

reet); minimum, 49 second-feet Dec. 31 (gage height, 3.81 feet).

1909-15, 1943-47; Maximum discharge observed, 5,660 second-feet Mar. 1, 1910 

(gage height, 10.6 feet, site and datum then in use), from rating curve extended above 

1,200 second-feet; minimum observed, 40 seoond-feet Jan. 23, Nov. 29, 1911.

Remarks.- Records good. Several small reservoirs and many small diversions frdm tributaries above station for irrigation; large diversions below.

ating table, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

3.8 48 4.3 153 5.5 691

3.9 62 4.5 217

4.0 79 4.7 293

4.1 10O 5.0 435

6.0 974

6.4 1,210

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

96 

133 

147 

139 

133

128 

131 

131 

125 

122

122

125 

122

120 

130

120 

131 

133 

136 

136

136 

139 

142 

153 

162

165 

162 

159 

156 

156 

150

Nov.

145 

136 

128 

112 

118

142

150 

142 

136 

131

131 

131 

120 

133 

139

125 

122 

139 

142 

147

159 

159 

165 

162 

172

175 

172 

184 

224 

210

Dec.

194 

187 

184 

181 

178

175

178 

207 

207 

187

175 

165 

172 

172 

172

165 

159

100 

92 

136

165 

156 

162 

147 

136

153 

156 

150 

115

69 

58

Jan.

87 

87 

83 

83 

87

100 

112 

128 

125

125

131 

133 

131 

122 

108

96 

96 

94 

102 

118

139 

142 

136 

136 

142

150 

150 

142 

136 

131 

133

Feb.

131 

142 

150 

145 

142

142 

147 

150 

156 

168

187 

191 

181 

253 

333

324 

347 

319 

273 

253

231

217 

214 

207 

221

224

200 

197

Month

May........................................

Water year 1946 47 ... ..................

Mar.

184 

181 

184 

187 

175

168 

165 

16? 

165 

165

168 

187 

200 

187 

191

231 

293 

380 

435 

450

435 

420 

435 

465 

460

405 

390 

361 

351 

385 

450

Apr.

465 

440 

410 

420 

390

375 

380 

400 

430 

485

460 

440 

435 

465 

545

612 

654 

680 

691 

664

643 

633 

602 

555 

530

500 

485 

495 

520 

571

Secondfoot-days

101,071

May

602 

680 

904 

,030 

,110

,100 

,150

,190 

,190 

,170

1,080 

945 

887 

858 

789

756 

740 

762 

778 

800

823 

829 

812 

772 

750

745 

745 

789 

772 

734 

680

Maximum

1,190

June

680 

670 

643 

612 

576

545 

515 

550 

591 

654

638 

622 

633 

638 

643

643 

633 

654 

633 

617

581 

530 

475 

435 

420

415 

415 

395 

361 

328

Minimum

58

July

306 

285 

277 

265 

253

239 

228 

214 

210 

200

191 

181 

175 

168 

159

156 

153 

147 

14Z 

133

133 

128 

122 

118 

115

110 

110 

105 

105 

100 

98

Aug.

98 

96 

96 

96 

98

96 

92

87 

83 

81

81 

81 

81 

79 

81

79 

79 

77 

76 

77

74 

74 

74 

72 

72

72 

70 

69 

65 

64 

64

Sept.

65 

65 

65 

64 

64

64 

65 

67 

65 

65

67 

67 

65 

65 

64

64 

65 

67 

69 

74

76 

76 

76 

74 

72

72 

70 

70 

69 

69

Hear Runoff in ear acre-feet

13£ 8 390

277 200,500
134 BRUNEAU RIVER BASIN

Bruneau River near Grand View, Idaho

Location.- Water-stage recorder, lat. 42°56 I , long. 115°57', in SE- sec. 35, T. 5 S., fi. 

4 Ji., 0.8 mile downstream from diversion dam for Grand View Canal, 1 mile upstream 

from mouth, and 85 miles southeast of Grand View. Datum of gage is 2,372.3 feet above 

mean sea level, datum of 1929 (from stadia level circuit by Topographic Division in 

1945).

Records available.- January 1895 to December 1903 (gage height only January 1900 to 

December 19U3J, May 1909 to September 1916, December 1944 to September 1947.

Extremes.- Maximum discharge during year, 995 second-feet May 10 (gage height, 3.55 

reet); minimum, 0.9 second-foot Sept. 30 (gage height, 0.45 foot).

1895-1903, 1909-16, 1944-47: Maximum discharge observed, 5,700 second-feet Mar. 2, 

1910 (gage height, 10.1 feet from floodmark, site and datum then in use), from rating 

curve extended above 1,200 second-feet; minimum, that of Sept. 30, 1947.

Remarks.- Records excellent except those below about 10 second-feet, which are fair. 

Many diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

31

Oct.

7.O

62

79

90

84

71

75

86

75

68

66

71

68

64

64

62

71

79

77

77

81

81

81

81

100

102

104

100

95

97

93

Nov.

134

163

160

144

136

155

174

174

166

163

158

160

149

144

163

155

147

147

169

212

194

197

189

194

197

212

209

206

242

245

Dec.

227

220

217

208

3O2

214

202

223

239

223

208

197

197

202

202

194

185

154

119

146

188

182

185

164

169

182

197

191

162

129

93

Jan.

112

122

114

114

112

122

134

149

152

152

154

156

156

154

139

129

124

124

122

136

156

172

169

169

172

182

185

180

172

164

167

Feb.

162

172

182

185

182

180

182

185

188

200

223

230

236

372

435

419

411

390

341

307

290

267

258

251

258

261

245

239

_

-

Month

December ...................................

Calendar year 1946 ......................

April.. ....................................

May. .......................................

September. .................................

Water year 1946-47 .......................

Mar.

236

226

233

236

223

214

205

202

202

205

205

223

242

236

226

251

307

383

435

464

460

451

460

473

491

435

411

393

376

393

460

Apr.

482

435

415

415

397

379

372

334

362

408

383

348

300

303

358

411

451

460

478

455

443

415

379

337

297

271

251

245

258

294

Secondfoct-days

5,821

113,582.2

9 957

138.8

79,101.8

-

May

324

354

500

761

855

835

855

925

960

980

930

810

712

676

599

532

500

5OO

514

518

554

563

558

532

514

504

500

550

563

540

491

Maximum

239

1,750

980

95

6.6

980

June

486

509

509

500

435

411

491

545

608

648

653

622

617

532

478

473

473

451

443

408

376

320

£64

177

175

154

162

162

129

116

-

Minimum

134

93

3.8

1 R?

324

1.3

1.3

July

95

68

47

40

36

31

29

19

13

11

11

10

10

9.6

9.6

9.1

7.0

7.0

7.0

7.0

7.0

7.4

7.4

7.4

Jit

7.4

7.4

7.4

7.4

7.4

7.4

Aug.

7.0

7.0

6.6

6.6

6.6

6.3

6.3

6.3

5.9

5.9

5.5

5.5

5.5

5.9

5.9

5.5

5.5

5.5

5.1

5.1

4.7

4.7

4.7

4.7

5.1

4.7

4.7

4.4

4.4

4.4

- 4.7

Mean

77.8

175

188

|U

321

4.63

217

Sept.

4.4

4.

4.

4.

4.

4.4.'

4.

5.1

5.1

5.1

5.5

5.5

5.5

5.1

5.5

5.5

5.5

5.9

5.9

6.6

6.3

5.9

5.5

5.5

2.6

1.3

1.5

1.3

1.3

-

Runoff in 

acre-feet

4,780

1O,43O

11,550

225,300

275

156,900
BRUNEAU RIVER BASIN 135

Wickahoney Creek near Bruneau, Idaho

Location.- Water-stage recorder, lat. 42°47 I , long. 115°59', in sec. 27, T. 7 S., R. 4 E.

0.3 mile upstream from mouth and 11 miles southwest of Bruneau. 

Records available.- December 1938 to September 1947. 

Extremes.- Maximum discharge recorded during year, 211 second-feet Feb. 13 (gage height,

STSHTeet); no flow during most of year.

1938-47: Maximum discharge, 2,100 second-feet Jan. 22, 1943 (gage height, 12.4

feet,, from high-water mark), by slope-area method; no flow during long periods of

each year. 

Remarks.- Records poor.

Discharge, In. second-feet, water year October 1946 to September 1949

Day Discharge Day Discharge Day Discharge

Feb. 1 0 Feb. 7 0 Feb. 13 f68 

20 80 14 h28 

30 90 15 h48 

40 10 0 16 340 

50 11 0 17 328 

60 12 0 18 h!5

Month

December .................. ........

Calendar year 1946. ..............

July.... ...........................

Wster year 1946-47 ...............

Secondfoot-days

0 

0 

0

821

0 

244.0 

0 

0 

0 

0 

0 

0 

0

244.0

Day Discharge

Feb. 19 h5.8 

20 a4 

21 a3 

22 a2 

23 tl.2 

24 3.6

Maximum

0 

0 

0

53

0 

66 

0 

0 

0 

0 

0 

0 

0

68

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Day Discharge

Feb. 25 30.3 

26 3.1 

27 0 

28 0

Mean

0 

0 

0

2.25

0 

8.71 

0 

0 

0 

0 

0 

0 

0

.67

Runoff In 

sore-feet

0 

0 

0

1,630

0 

484 

0 

0 

0 

0 

0 

0 

0

464

t Field estimate made this dsy by observer.

3 No gage-height record; discharge computed on basis of records for Jacks Creek near Bruneau.

f Discharge computed from psrtly estimated gage-height record.

h Computed from staff-gsge reading.

Jacks Creek near Bruneau, Idaho

Location.- Water-stage recorder, lat. 42°47', long. 115°59 I , in sec. 27, T. VS., R. 4 E., 

65U reet upstream from confluence with Wickahoney Creek and 11 miles southwest of 

Bruneau.

Records available.- November 1938 to September 1947.

Extremes.- Maximum discharge during year, 92 second-feet Feb. 13 (gage height, 3.11 feet); 

no now for long periods.

1938-47: Maximum discharge, 908 second-feet Jan. 21, 1943 (gage height, 7.2 feet, 

from high-water mark), from rating curve extended above 50 second-feet on basis of 

slope-area determination; no flow for long periods in each year.

Remarks.- Records fair. No regulation; ranch diversions above station.

Discharge, in second-feet, inter year October 1946 to September 1947

Day

1 

2 

3

4 

5 

6

Octot 

Novel! 

Decen

Ca:

Januc 

Febri 

Marcl 

Apri]

June 

July 

AugUi 

Septe

Feb. Ju

0 0 

0 0 

0 

0 3 

0 

0

ne Day

7 

6 

.6 9 

.8 10 

.3 11 

.1 12

Feb.

0.7 

.3 

.1 

0 

.4 

2.5

Month

aber. ....

Lendar yesr 1946. ....

........

mber. . . .

Water year 1946-47.....

June

0 

0 

.1 

0 

0 

0

IIW

13 

14

15 

16 

17 

18

Second - 

foot -days

0 

0 

0

245.

0 

111. 

0 

0 

0 

4. 

0 

0 

0

116.

1

6

9

5

Peb . June ,

34 0 

19 0 

19 0 

15 0 

11 0 

5.4 0

Maximum

0 

0 

0

30

0 

34 

0 

0 

0 

3.8 

0 

0 

0

34

Day 'Feb. June Day'

19 2.9 0 25 

20 1.0 0 26 

21 .2 0 27 

22 0 0 28 

-23 0 0 29 

24 0 0 30

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Mean

0 

0 

0

.67

0 

3.99 

0 

0 

0 

.16 

0 

0 

0

.32

Feb. June

0.1 0 

0 0 

0 0 

0 0 

0 

0

" Runoff in 

acre-feet

0 

0 

0

4S6

0 

221 

0 

0 

0 

9.7 

0 

0 

0

231
136 OWYHEE RIVER BASIN

Owyhee River near Gold Creek, Nev.

Location.- Water-stage recorder, lat. 41°41'10", long. 115°51'30", in NW^-NW^- sec. 25, T. 

44 M., R. 54 E., 500 feet downstream from Wild Horse Dam and 8 miles west of Gold 

Creek. Altitude, 6,130 feet (from topographic map).

Drainage area.- 209 square miles.

Records available.- March 1916 to September 1925, October 1936 to September 1947.

Average discharge.- 18 years (1917-21, 1932-25, 1936-47), 42.6 second-feet.

Extremes.- Maximum daily discharge during year, 144 second-feet (regulated) June 26; 

practically no flow Feb. 25 to May 7.

1916-85, 1936-47; Maximum discharge, 1,810 second-feet May 5, 1922 (gage height, 

10.11 feet, site and datum then in use), from rating curve extended above 400 secondfeet; practically no flow at times when reservoir gates were closed.

Remarks,- Records good. Small diversions above station for irrigation. Plow regulated 

by Wild Horse Reservoir (see p. 140).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

34

18

17

17

17

17

17

17

18

18

18

18

18

18

18

18

18

11

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

,5

.5

Nov.

0 5

0.5

-

Dec.

0.5

Jan.

 0.5

Feb.

 0.5

' .3

0

0

0

0

-

Month

October. .......................... ... . . .

November. ..... ............................

December ....................... ...........

Calendar year 1946 ................ ... .

January ............................... ....

February. ..................................

March. ................................. ...

April ......................................

May. ........................ ..............

June ............. .........................

July. ......................................

August ..................................

September. ................... ..........

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

334.5

15.0

15,5

22,400

15.5

11.8

0

0

1,609.3

3 , 216

3,045

2,540

734 ' S

11,540

May

0

0

0

0

0

0

0

BO

73

16

1.5

1.5

1.7

1.6

23

45

79

79

79

87

98

98

97

97

96

96

96

96

96

96

96

Maximum

34

_

-

493

0

0

98

144

141

79

144

June

96

96

97

97

97

97

97

97

97

97

97

97

97

97

96

96

94

94

93

93

93

93

112

142

142

144

142

142

142

142

Minimum

0.5

-

-

0

0

o

0

93

63

71

9 ' S

O

July

141

141

139

139

139

138

138

135

134

133

133

113

63

63

69

80

80

79

73

77

77

77

76

76

76

76

75

75

75

75

75

Aug.

75

75

74

74

73

72

72

72

72

71

71

71

81

96

96

94

93

92

91

91

90

89

88

87

86

85

84

83

82

80

80

Mean

10 '.58

61.1

,_

.42

0

0

51.9

107

98 . 2

?4 5

31.6

Sept.

79

78

77

76

64

9.5

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

14

14

14

14

14

13

13

Runoff in 

acre feet

663

30

31

44,430

31

23

0

0

3,190

6,380

6,040

5,040

1,460

22,890

Note.- Discharge for period of no gage-height record, Nov. 2 to ftpr. 10, computed on basis of 

discharge measurements and records of gate operation at Wild Horse Dam
OWYHEE RIVER BASIN 137

Owyhee River at Mountain City, Nev.

Location.- Water-stage recorder, lat. 41°50'10", long. 115°57'50", in SW-jj sec. 35, unsurveyed, T. 46 N., R. 53 E., at Mountain City, 1 mile downstream from California 

Creek.

Drainage area.- 350 square miles.

Records available.- May to December 1913, November 1926 to September 1947.

Average discharge.- 21 years (1926-47), 98.1 second-feet.

Extremes.- Maximum discharge during year, 242 second-feet (regulated) May 9 (gage height, 

STBTTTeet); minimum not determined, occurred during period of ice effect.

1913, 1927-47: Maximum discharge, 1,830 second-feet Apr. 20, 1936 (gage height, 

7.6 feet), from rating curve extended above 600 second-feet; no flow July 29 to 

Sept. 15, 1931, July 21 to Sept. 12,,1934.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation. Flow partly regulated by 

Wild Horse Reservoir (see p. 140).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

. Oct.

61 

46 

34 

32 

32

32 

32 

32 

33 

32

33 

33 

32 

32 

32

34 

34 

34 

24 

19

19 

19 

25 

24 

23

22 

21 

20 

20

19 

19

Nov.

*20 

19 

18 

18 

19

19 

20 

18

16 

14

12 

15 

18 

17 

16

18 

19 

19 

20 

26

27 

26 

31 

36 

33

33 

39 

36 

33 

32

Dec.

31 

27 

27 

26 

27

32 

31 

28 

27 

25

26 

27 

25 

25 

24

20 

18 

16 

18 

20

22 

21 

21 

22 

22

22 

24 

22 

20 

19 

18

Jan.

16 

14 

12 

12 

13

13 

14 

14 

15 

16

15 

14 

12 

10 

8

10 

13 

16 

18 

20

22 

23 

24 

25 

26

25 

23 

*22 

20 

21 

22

Feb.

, 35

^ 60

a65 

a55 

a55 

a50 

a44

a40 

a39 

a40 

a45 

a40

a35 

a37 

a33

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ..................................

lendar year 1946 ......................

ary

1. .....................................

st... ..................................

ter year 1946-47 ...............

Mar.

a32 

a35 

a33 

a32

*31

28 

30 

30 

30 

48

61 

42 

45 

60 

69

80 

94 

103 

107 

107

103 

109 

131 

110 

101

97 

90 

96 

105 

128 

122

Apr.

114 

112 

109 

103 

109

122

116 

147 

152 

145

145 

143 

150 

172 

196

208 

211 

208 

192 

192

184 

172 

154

147 

137

130 

130 

130 

131 

128

Secondfoot-days

904 

687 

733

48,175

528 

1,223 

2,289 

4,489 

4,125 

4,223 

3,060 

2,505 

857

25,628

May

124 

124 

131 

128 

122

116 

110 

120 

230 

152

110 

110 

103 

92 

85

105 

122 

133 

135 

133

148 

145 

145 

145 

145

145 

143 

184 

150 

143 

147

Maximum

61 

39 

32

888

26 

65 

131 

211 

230 

182 

154 

96 

80

230

* Winter discharge measurement made on this day. 

a No ease-height record; discharge computed on basis of weather

June

150 

145 

141 

137 

137

133 

137 

150 

182 

158

152 

145 

133 

131 

130

126 

130 

128 

122 

118

118 

114 

112 

152 

154

154 

160 

160 

158 

156

Minimum

19 

12 

16

12

8 

33 

28 

103 

85 

112 

58 

67 

16

8

July

154 

152 

148 

148 

148

147 

143 

139 

137 

135

135

133 

78

go

58

72 

75 

75 

75 

75

73 

73 

72 

70 

69

69 

69 

70 

70 

69 

69

Aug.

67 

69

70 

70 

70

70 

70 

69 

69 

67

67 

67 

67 

92 

94

96 

94 

92 

92 

92

92 

92 

90 

92 

90

88 

87 

85 

83 

81 

81

Mean

29.2 

22.9 

23.6

132

17.0 

43.9 

73.8 

150 

133 

141 

98.7 

80.8 

23.6

70.2

Sept.

80 

80 

78

77 

77

41 

18 

20 

19 

19

19 

20 

19 

19

18

16

16 

17 

17 

17

17 

17 

18 

17 

17

17 

18 

17 

16 

16

Runoff in 

acre- feet

1,790 

1,360 

1,450

95,540

1,050 

2,440 

4,540 

8,900 

8,180 

8,380 

6,070 

4,970 

1,700

50,830

records and records for station

near Owyhee.

Note.- Stage-discharge relation affected by ice Nov. 2, 3, 5, 6, 8-10, 12-17, 21, Dec. 10, 11, 

16-22, Dec. 28 to Feb. 15 (no gage-height record Jan. 4-28; discharge computed on bssis of weather 

records and records for Owyhee River near Gold Creek).

881401 O - 50 - 10
138 RIVER BASIN

Owyhee River above China diversion dam, near Qwyhee, Nev.

Location.- Water-stage recorder, lat. 41°55i20", long. 116°04ilO", in NVf£ sec. 6, T. 

4B N., R. 53 E., 1,000 feet downstream from Skull Creek, 1 mile upstream f.-om China 

Diversion dam, and_2 miles southeast of Owyhee.

Drainage area.- 458 square miles.

Records available.- March 1939 to September 1947.

Extremes (regulated).- Maximum discharge during year, 382 second-f^et Mav 9 (gage 

neignt, 4.t>i reet;}; minimum, 15 second-feet Sept. 30

1939-47; Maximum discharge, 1,850 second-feet May 6, 1945 (gage height, 9.18 feet) 

minimum dally, 2 second-feet Sept. 15-18, 1940.

Remarks.- Records good except those for periods of ice effect, which are "fair. Diversions above station for irrigation. Flow partly regulated by Wild Horse Reservoir 

(see p. 140).

Discharge, in second-feet, water year October 1946 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.

77

75

46

42

40

41

40

42

42

40

39

42

39

39

38

44

44

47

41

29

27

29

43

41

37

33

31

30

30

29

28

Nov.

*29

29

26

27

27

28

28

26

24

22

20

23

26

25

24

26

28

25

26

32

32

38

41

51

37

45

56

50

44

42

-

Dec.

42

40

38

37

39

 50

46

42

39

34

35

39

35

34

32

28

26

24

27

3C

32

31

30

32

32

29

34

32

30

28

26

Jan.

24

22

20

21

22

23

24

25

26

26

25

24

21

18

16

18

20

23

26

30

32

33

34

35

36

34

33

*32

30

31

32

Feb.

. 50

1-

87

81

82

73

64

5a

57

59

71

60

51

55

47

_

_

-

Month

October. ...................................

November. .................................

December. ..................................

Calendar year 1946 ......................

January ........ ...........................

February ...................................

March. .....................................

April......... .............................

May........................................

June .......................................

July.......... .............................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

44

51

47

46

*46

39

46

44

44

54

102

64

59

76

93

108

129

148

154

150

147

148

186

155

134

121

108

114

129

162

159

Apr.

149

145

148

134

133

153

148

184

223

204

20o

208

232

269

309

332

343

356

325

321

311

282

258

240

225

218

218

218

222

219

Secondfoot-days

1,245

957

1,053

62,756

316

1,721

3,107

6,933

5,709

4,654

3, 161

2,552

875

32,783

May

212

212

213

205

191

178

166

165

345

264

187

193

174

151

130

143

153

172

173

166

177

177

169

163

165

160

161

236

180

163

165

Maximum

77

56

50

1,120

36

186

356

345

222

172

104

78

356

June

175

165

153

145

142

135

138

161

222

198

195

179

148

139

133

126

139

136

125

122

122

119

113

149

172

172

184

187

183

177

Minimum

27

20

24

20

16

39

133

113

54

66

16

16

July

172

167

162

161

159

157

153

148

143

140

141

140

96

61

54

64

72

69

68

69

69

69

69

69

69

68

69

69

71

72

71

Aug.

70

73

76

75

72

72

72

72

70

67

67

66

66

88

103

TO4

101

99

95

94

92

32

92

91

89

86

84

83

81

80

80

Mean

40.2

31 . 9

34.0

172

26 . 3

61.5

100

231

184

155

102

R2 . 3

29.2

89.8

Sept.

78

77

74

73

72

59

22

22

20

19

18

18

18

17

18

17

18

20

20

20

19

19

18

18

18

18

17

16

16

16

-

Runoff in 

acre-feet

2,470

1,900

2,090

124,500

1, 620

3,410 

6, 160

13,750

11,320 

9 230

6^270

5,060

1,740

65,020

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 3-6, 10-16, Dec. 17-23, Dec. 28 to Veo. 15.
OWYHEE RIVER BASIN 139

Owyhee River above Owyhee Reservoir, Oreg.

Location.- Water-stage recorder, lat. 43°13' , long. 117e 30', In SEj- sec. 18, T. 27 S., R.

43 Ji., 3 miles upstream from flow line of Omyhee Reservoir and 8 miles southwest of

Watson. Altitude of gage, about 2,690 feet above mean sea level (levels by Bureau of

Reclamation).

Drainage area.- 10,400 square m\les. 

Keeords available.- October 1930 to September 1947 In reports of Geological Survey. April

iyv;y to September 1936 In reports of Oregon State engineer. 

Average discharge.- 18 years, 849 second-feet. 

Extremes.- Maximum discharge during year, 4,290 second-feet Apr. 10 (gage height, 8.51

 feet); minimum, 143 second-feet Sept. 2, 4 (gage height, 3.67 feet).

1929-47: Maximum discharge, 16,000 second-feet Mar. 20, 1932, Apr. 19, 1936; maximum gage height, 12.95 feet Mar. 20, 1932; minimum discharge, 103 seconi-feet Aug. 19, 

1932 (gage height, 3.57 feet).

Remarks.- Records good except those for periods of Ice effect, which are poor. Diversions

 above station for Irrigation. Plow slightly regulated by 11 small reservoirs which

have a total capacity of 52,000 acre-feet. 

Cooperation.- Water-stage recorder Inspected by Bureau of Reclamation.

Rating table, water year 1946-47, except period of Ice effect 

(gage height, in feet, and discharge, in second-feet)

149

198

288

400

585

5.4 

5.9

6.5 

7.2 

8.1

890

1,240

1,730

2,450

3,630

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

215

215

226

247

262

272

316

334

320

316

323

312

302

295

288

278

275

278

282

285

285

292

298

298

309

306

298

295

309

316

316

Nov.

312

309

306

302

295

288

292

306

306

323

330

338

323

309

306

306

295

330

345

342

372

416

436

454

718

790

706

1,090

1,070

1,170

-

Dec.

1,060

1,020

939

772

658

596

607

1,050

1,160

784

585

490

436

404

388

b300

b250

b250

b260

b270

288

316

327

316

312

312

316

312

327

309

250

Jan.

b230

b200

b!70

b!50

blSO

218

272

282

285

288

278

292

288

266

b250

b220

b200

b200

b200

b240

b240

b240

b260

278

272

269

295

316

298

298

306

Feb.

309

309

323

449

432

495

624

742

827

778

688

796

1,300

2,860

3,100

2,590

2,440

2,410

2,130

1,790

1,560

1,280

1,070

995

1,120

1,460

1,250

960

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ...................................

March ......................................

April. .....................................

May. .......................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

784

682

607

565

540

530

530

520

520

495

490

602

,230

,110

932

,O90

,460

,600

,680

,670

,540

,370

,260

,250

,35O

,340

,120

,000

918

855

820

Apr.

808

834

855

932

911

939

1,110

1,550

2,590

3,740

3,230

2,470

2,000

1,640

1,470

1,420

1,400

1,410

1,420

1,370

1,360

1,390

1,300

1,220

1,120

1,040

967

911

814

730

-

Secondfoot-days

8,963

13,485

15,664

435,466

7,781

35,087

30,460

42,951

15,115

13 443

7J119

5,313

5,079

200,460

May

694

676

646

602

56O

520

490

458

428

412

424

436

585

658

652

658

624

545

500

485

432

392

368

368

364

360

338

338

349

353

400

Maximum

334

1,170

1,160

7,080

316

3,100

1,680

3,740

694

670

288

195

188

3,740

June

416

490

485

495

510

505

596

565

515

525

535

515

646

670

629

565

510

458

416

372

345

327

320

312

302

292

288

282

282

275

Minimum

215

288

250

150

309 490-

730

338

275

185

156

151

150

July

266

269

285

288

278

262

244

241

253

253

244

238

241

241

235

235

223

215

209

209

212

209

204

201

204

201

195

185

188

193

198

Aug.

195

193

188

182

182

182

177

175

172

170

170

170

167

170

172

167

165

170

170

170

170

167

170

167

165

167

165

163

158

156

158

Mean

289

450

505

1,193

251

1,253

983

1,432

488

448

230

171

169

549

Sept.

158

156

156

151

158

160

170

170

175

170

167

165

167

165

167

170

172

172

172

170

172

175

175

175

177

177

167

188

182

180

Runoff in 

acre feet

17,780

26,750

31,070

863,800

15,430

69,590

60,420

85,190

29 r 980

26 , 6GO

14,120

10,540

10,070

397,600

b Stage-discharge relation affected by ice
OWYHEE RIVER BASIN

Wild Horse Reservoir near Gold Creek, Nev.

Location.- Reference point on Wild Horse Dam on Owyhee River, lat. 41°41'10", long. 115° 

 bi'yU" , in NE-J-NW^- sec. 25, T. 44 N., R. 54 E. , 8 miles west of Gold Creek. Datum of

gage is r, ,109.18 feet above mean sea level (levels by Office of Indian Affairs). 

Drainage area.- 209 square miles. 

Records available.- March 1938 to September 1947. 

Extremes.- Maximum contents observed during year, 24,220 acre-feet May 6 (gage height,

Y4.yb feet); minimum observed, 3,410 acre-feet Sept. 27.

1938-47: Maximum contents observed, 34,460 acre-feet Apr. 18, 1942 (gage height,

80.95 feet); no contents at times during each year 1938-41. 

Remarks.- Reservoir is formed by concrete-arch dam; storage began Mar. 18, 1938. Capacity,

32TOTO acre-feet between gage height 20.0 feet (sill of outlet gate) and 80.0 feet

(spillway crest). No dead storage. Water is used for irrigation on Duck Valley project. 

Cooperation - Most of gage-height record and base data for capacity table furnished by

OtTiee or Indian Affairs.

Contents, In acre-feet, water year October 1946 

to September 1947

Date

Oct. 2

25

Nov. 25

Dec. 6

23

Jan. 27

28

Contents

10,960

10,640

11.Z70

11,700

bll,800

12,530

12,770

Date

Feb. 24

Mar. 5

ze

Apr. 11

28

May 6

8

28

Contents

b!4,300

14,790

18,510

21,070

23,300

24,220

24,020

22,390

Date

June 10

26

July 9

29

Aug. 8

30

Sept. 17

Z7

Contents

20,590

17,250

13,600

10,080

8,780

4,940

3,720

3,410

b Contents computed from gage readings corrected for 

Ice cover.

Owyhee Reservoir at Owyhee Dam, near Nyssa, Oreg.

Location.- Staff gage, lat. 43°38', long. 117°15", in sec. 20, T. 22 S., R. 45 E., 21 miles 

southwest of Nyssa. Datum of gage is at ihean sea level (level by Bureau of Reclamation).

Drainage area.- 11,160 square miles.

Hecords available.- October 1932 to September 1947.

Extremes.- Maximum contents observed during year, 1,043,500 acre-feet Apr. 20, 21 (eleva-

 tion 2,663.68 feet); minimum observed, 659,000 acre-feet Sept. 30 (elevation, 2,625.72 

feet).

1932-47; Maximum contents observed, 1,125,000 acre-feet June 11, 1936 (elevation, 

2,670.27 feet); minimum observed since full capacity was attained on May 7, 1936, those 

of Sept. 30, 1947.

Remarks.- Reservoir is formed by concrete arch-gravity dam, completed in September 1932; 

storage began Oct. 16, 1932. Capacity, 1,121,800 acre-feet between elevations 2,367.5 

feet (bottom of sluice gates) and 2,670 feet (top of spillway gate), 715,003 acre-feet 

between elevations 2,590.2 feet (diversion tunnel) and 2,670 feet. Dead storage below 

elevation 2,367.5 feet negligible. Figures given herein are of contents above elevation 

2,367.5 feet. The reservoir will generally not be drawn below elevation 2,590.2 feet. 

Water is released through diversion tunnel to South canal for irrigation of lands west 

of Snake River in the vicinity of Homedale, Idaho, and to North canal for irrigation 

of lands north and west of Owyhee River, and through sluice gates to river for Owyhee 

Canal, which diverts about 18 milss downstream. Gage read once daily.

Cooperation.- Gage height record furnished by Bureau of Reclamation.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31.............. .......

Calendar year 1946. .......

Apr 30

Water year 1946-47. .......

.Elevation 

(feet)t

2,647.07

-

-

Contents 

(acre-feet)

857,700

-

727 700

-

Change In contents 

during month 

(acre-feet)

+36,600

-64,100

-141,700

t Time of gage reading not know
OWYHEE RIVER BASIN 141

Owyhee River below Owyhee Dam, Oreg.

Location - Water-stage recorder, lat. 43°39', long. 117°15', in sec. 17, T. 22 S., R. 45 

&., three-qaarters of a mile downstream from Owyhee Dam. Datum of gage is 2,343.67 

feet above mean sea level (levels by Bureau of Reclamation).

Drainage area. - 11,160 square miles.

Records available.- February 1929 to September 1947.

Average discharge.- 18 years, 428 second-feet.

Extremes.- Maximum discharge during year, 222 second-feet June 27 (gage haight, 1.62 

feet); minimum observed, 7 second-feet Apr. 6 (gates closed at Owyhee Dam).

1924-47: Maximum discharge, 14,600 second-feet Mar. 21, 1932 (gage height, 12.79 

feet); no flow for a few hours Aug. 8, 9, 1932, when temporary diversion tunnel at 

Owyhee Dam was closed.

Remarks - Records good above 10 second-feet and poor below. Diversions above station

for irrigation. Flow regulated by Wild Horse and Owyhee Reservoirs (see preceding page).

Cooperation.- Water-stage recorder inspected by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

66

66

67

43

12

8

8

8

8

8

8

>

Nov.

8

-

Dec.

 a

Jan.

8

Feb.

 8

-

-

-

Month

October. ................................

November. ..................................

December. ...................... ...........

Calendar year 1946 .....................

January. ...................................

February. ..................................

March. ............................... .

April. .....................................

May. .......................................

June ....................................... July. :.....................................

August .....................................

September. ..............................

Water year 1946-47 ......................

Mar.

> 8

Apr.

8

8

8

8

8

86

126

126

126

109

98

98

98

98

99

116

129

129

116

106

106

106

108

109

109

123

134

146

157

157

Secondfoot-days

462

240

248

215,262

248

224 

248

2 955 

5J530

3 939 

3^847

1, 986

2,978

22,905

May

157

159

159

161

161

168

176

178

178

178

178

178

178

178

180

187

187

187

187

187

187

187

187

187

187

187

187

187

182

182

168

Maximum

67

-

6,840

157

187

o^208

121

121

208

June

163

155

141

141

127

120

123

106

95

84

75

77

77

77

78

93

106

108

114

131

144

146

146

159

172

174

191

204

206

206

Minimum

.

-

.

157

75

40

65

-

July

208

208

208

208

208

208

193

159

115

118

135

137

137

137

137

137

118

80

82

82

82

82

83

75

74

74

74

74

74

71

69

Aug.

69

71

72

74

74

74

75

65

46

47

47

49

51

51

52

52

53

53

53

47

40

41

42

42

63

80

80

80

102

121

120

Mean

14.9

8.0

8.0

590

8.0

98 5

131

124 

64.1

9y . 3

62.8

Sept.

120

120

121

121

121

121

121

108

99

99

99

99

99

99

99

99

99

98

98

98

99

98

99

88

80

flO

80

80

71

65

Runoff in 

acre- feet

916

476

492

472,000

492

444

492

5,860

10,970

7,810

7,630

3,940

5,910

45,430

Note.- No gage-height record Oct. 6-10, Oct. 12 to Apr. 5; flow represents leakage computed on 

basis of staff-gage readings Oct. 11, Apr. 6.
142 OWYHEE RIVER BASIN

Jordan Creek above Lone Tree Creek, near Jordan Valley, Ore.

Location.- Water-stage recorder, lat. 42°53', long. 116°59', in NW£ sec. 19, T. 6 S., R. 

5 W., 2 miles upstream from Lone Tree Creek and 7 miles southeast of Jordan Valley.

Records available.- October 1945 to September 1947.

Extremes.- Maximum discharge during year, 676 second-feet Apr. 17 (gage height, 3.26 

feet); minimum, 1.5 second-feet Sept. 6; minimum gage height, 0.69 foot Nov. 12, 

Sept. 6.

1945-47: Maximum discharge, 2,100 second-feet Apr. 19, 1946 (gage height, 5.44 

feet); minimum, that of Sept. 6, 1947.

Remarks.- Records good except those for periods of ice effect, which are fair. Diversions 

above station for irrigation.

Rating tables, water year 1946-47, except periods of lee effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Jan. 4 Jan. 5 to Sept. 30

1.0 9.0 1.4 38 O.7 1.6 1.1 14 1.5 48 2.3 224

1.1 15 1.5 50 .8 3.8 1.2 2O 1.7 79 2.6 330

1.2 21 1.6 65 .9 6.4 1.3 28 1.9 12O 2.9 47O

1.3 29 1.7 83 1.0 9.5 1.4 37 2.1 168 3.2 64O

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.0

13

13

12

13

13

14

16

16

14

14

14

14

14

14

14

15

17

16

16

17

18

20

20

20

19

19

18

17

17

17

Nov.

19

14

16

15

17

19

20

19

15

20

20

*14

18

20

16

15

20

20

24

29

28

31

39

54

42

45

72

70

59

54

Dec.

50

46

44

42

42

56

62

54

50

44

43

42

42

56

81

59

30

35

46

48

46

43

37

34

40

38

39

28

35

27

26

Jan.

25

24

*23

23

25

28

29

29

29

30

30

29

27

25

24

26

30

35

38

38

37

34

34

38

46

61

40

33

33

32

30

Feb.

32

39

74

56

64

69

59

56

55

47

54

*12O

339

240

221

201

187

173

163

146

136

132

125

141

143

129

111

90

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

83

105

90

90

83

67

77

77

76

111

163-

134

127

146

204

288

362

4O2

406

393

380

375

465

402

339

314

288

288

318

339

357

£££

Apr.

344

339

344

314

310

362

402

430

465

425

406

384

393

445

5OO

538

634

634

556

580

526

475

435

406

384

375

380

384

398

380

-

May

362

384

435

430

393

362

344

326

352

314

263

243

218

215

184

166

153

148

143

134

122

1O9

102

98

92

87

77

81

72

70

85

-s Maximum

483 20

864 72

1,365 81

86,576.9 2,050

985 61

3,402 339

7,349 465

12,948 634

6,564 435

2,049 134

322 . 7 28

81.5 4.1

87.8 4.8

36,501.0 634

June

87

87

77

90

81

74

69

67

98

98

134

129

107

85

76

70

77

74

59

56

55

51

46

39

32

26

26

26

27

26

-

Minimum

9.0

14

26

4.6

23

32

67

310

70

26

4.1

2^0

1.6

July

28

28

2O

18

17

17

16

14

13 ,

11

10

10

9.2

8.9

8.3

8.3

7.3

8.0

8.3

7.0

6.1

5.9

5.6

5.4

5.4

5.1

4.8

4.6

4.3

4.1

4.1

Av«.

4.1

3.4

2.9

2.9

3.1

3.1

2.9

2.9

2.7

2.5

2.5

2.5

2.5

2.3

2.0

2.0

1.8

1.6

1.6

2.3

2.5

2.5

2.9

2.9

2.9

2.9

3.1

2.7

2.5

2.5

2.5

Sept.

2.0

2.3

2.5

2.5

2.5

2.3

2.5

3.4

3.1

2.9

2.9

2.9

2.5

2.5

2.5

2.5

3.1

3.1

3.1

2.9

2.9

2.9

2.9

2.9

3.1

3.4

3.4

3.4

4.1

4.8

-

 «.._ Runoff in *ean aore-feet

15.6 958

28.8 1,710

44.0 2,710

237 171,700

31.8 1,950

122 6,750

237 14,580

432 25,680

212 13,020

68.3 4,060

10.4 640

2.63 162

2.93 174

100 72,390

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 16, Jan. 1-22.
BOISE RIVER BASIN 143

Boise River near Twin Springs, Idaho

Location.- Water-stage recorder, lat. 43°40', long. 115°44', in sec. 27, T. 4 N., R. 6 E., 

a quarter of a mile upstream from Birch Creek, if miles upstream from flow line of 

Arrowrock Reservoir, 4 miles downstream froni Twin Springs, and 13 miles upstream fro.Ti 

Arrowrock.

Drainage area.- 830 square miles.

Records available.- March 1911 to September 1947.

Average discharge.- 36 years, 1,122 second-feet.

Extremes.- Maximum discharge during year, 7,670 second-feet May 9 (gage height, 7.16 

reet); minimum, 330 second-feet Nov. 16, Sept. 6, 30 (gage height, 2.21 feet).

1911-47: Maximum discharge, 10,300 second-feet May 17, 1927 (gage height, 8.30 

feet), from rating curve extended above 8,000 second-feet; minimum, 109 second-feet 

Dec. 10, 1944; minimum gage height, 1.56 feet Dec. 15, 16, 1935.

Remarks.- Records excellent except those below 500 second-feet, which are good, and those 

for periods of ice effect or no gage-height record, which are fair. No diversions or 

regulation.

Rating table, water year 1946-47, except period of Ice effect 

(gage height, In feet, and discharge, in second-feet)

2.2 325 3.1 960 5.O 3,520 

2.4 420 3.7 1,620 6.0 5,300 

2.7 620 4.3 2,440 7.1 7,540

Discharge, in second-feet, water year October 1946 to September 19*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.

456 

933 

644 

545 

512

480 

468 

468 

450 

438

432 

426 

420 

415 

415

410 

405 

410 

405 

400

493 

560 

780 

605 

560

598 

560 

532 

486 

480 

468

Nov.

474 

395 

380 

420 

456

468 

480 

456 

420 

432

438 

*400 

385 

432 

415

361 

400 

480 

852 

1,010

716 

644 

748 

852 

724

700 

668 

660 

716 

708

Dec.

644 

620 

575 

575 

575

676 

684 

66S 

644 

605

612 

951 

1,460 

f2,160 

2,150

1,500 

1,000 

915 

980 

852

764 

732 

660 

582 

636

692 

660 

560 

456 

470 

440

Jan.

460 

*420 

410 

4OO 

450

480 

460 

460 

480 

500

540 

500 

520 

480 

430

410 

420 

440 

450 

510

520 

510 

500 

520 

510

500 

470 

440 

440 

450 

450

Feb.

460 

490 

490 

460 

470

470 

470 

47O 

470 

520

540 

580 

800 

750 

740

730 

740 

760 

780 

760

740 

680 

680 

720 

 748

748 

724 

668

u««*i. SecondUonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Ha

mber ......................

lendar year 1946 ...... ^

ember .....................

15,654 

16,690 

25,498

21,813

14,530 

17,658 

34,990 

66,050 

41,970 

32,030 

32,897 

13,352 

10,808

ter year 1946-47 .......... 472,127

Uar.

605 

668 

660 

636 

605

545 

575 

575 

560 

644

708 

652 

636 

692 

789

1,000 

1,300 

1,540 

1,710 

1,780

1,850 

1,870 

1,910 

1,700 

1,520

1,430 

1,370 

1,430 

1,500 

1,710 

1,820

Maximum

933

1,010 

2,160

6,950

540 

800 

1,910 

3,710 

7,350 

3,970 

1,660 

560 

426

7,350

Apr.

1,700 

1,630 

1,550 

1,480 

1,360

1,290 

1,200 

1,180 

1,140 

1,130

1,100 

1,120 

1,300 

1,840 

2,500

2,770 

2,920 

2,860 

2,760 

2,900

3,060 

2,980 

2,860 

2,620 

2,530

2,680 

3,000 

3,410 

3,710 

3,470

May

3,460 

4,500 

6,110 

6,430 

6,050

6,050 

6,470 

7,310 

7,350 

5,770

4,660 

4,210 

4,050 

3,760 

3,550

3,550 

3,680 

3,710 

-3,750 

3,970

4,090 

4,190 

3,950 

3,850 

4,000

4,100 

4,390 

4,140 

3,660 

3,460 

3,750

Minimum

400 

361 

440

337

400 

460 

545 

1,100 

3,460 

1,540 

582 

352 

334

334

June

3,780 

3,710 

3,470 

3,140 

2,840

2,830 

2,710 

3,040 

3,970 

3,550

3,140 

2,740 

2,560 

2,580 

2,640

2,800 

3,070 

3,180 

3,150 

2,950

2,520 

2,160 

2,080 

2,020 

2,100

2,190 

2,080 

1,840 

1,650 

1,540

Mean

505 

556 

823

1,430

469 

631 

1,129 

2,202 

4,580 

2,734 

1,060 

431 

360

1,293

July

1,520 

1,570 

1,660 

1,600 

1,520

1,500 

1,500 

1,490 

1,430 

1,360

1.29C 

1.1BC 

1,10C 

1.05C 

1.05C

1,02C 

96C 

91S 

87S 

843

8O7 

780 

748 

724 

692

668 

644 

620 

605 

590 

582

Per 

square 

mile

0.608 

.670 

.992

1.72

.565 

.760 

1.36 

2.65 

5.52 

3.29 

1.28 

.519 

.434

1.56

Aug.

560 

538 

526 

512 

500

493 

468 

462 

450 

444

444 

438 

432 

420 

420

410 

400 

395 

395 

415

405 

400 

444 

410 

395

380 

370 

366 

356 

352 

352

Sept.

352 

348 

361 

361 

348

338 

356 

426 

395 

390

375 

366 

356 

348 

348

348 

390

410 

375 

370

366 

356 

348 

343 

338

343 

343 

338 

338 

334

Runoff

Inches

0.70 

.75 

1.14

23.37

.65 

.79 

1.57 

2,96 

6.36 

3.68 

1.47 

.60 

.48

21.15

Acre-feet

31,050 

33,100 

50,570

1,033,000

28,820 

35,020 

69,400 

131,000 

281,600 

162,700 

65,250 

26,480 

21,440

936,400

* Winter discharge measurement made on this day.

f Computed from partly estimated gage-height record.

Note.- Stage-discharge relation affected by ice Dec. 3O to about Jan. 31. No gage-height record 

Jan. 19 to Feb. 24; discharge computed on basis of weather records, records for nearby streams in 

Boise and Payette River Basins, and records of inflow to Arrowrock and Anderson Ranch Reservoirs.
144 BOISE RIVER BASIN

Arrowrock Reservoir at Arrowrock, Idaho

Location.- Graduations on upstream face of dam on Boise River, lat. 43°36', long. 115°55 I , 

in KJ sec. 13, T. 3 N. , R. 4 E., at Arrowrock, 22 miles by road east of Boise. Datum 

of gage is at mean sea level (surveys of Bureau of Reclamation).

Drainage area.- 3,210 square miles.

Records available.- October 1917 to September 1947.

Extremes - Maximum contents observed during year, 300,900 acre-feet May 9 (elevation, 

3,219.0 feet); minimum observed, 69,100 acre-feet Oct. 7-11 (elevation, 3,112.0 feet). 

1917-47: Maximum contents observed, 300,900 acre-feet May 4, 5, 1939, Kay 9, 1947 

(elevation, 3,219.0 feet); no usable contents during period in each of several years 

when sluice gates were open and natural flow was passing through reservoir.

Remarks.- Reservoir is formed by gravity-section concrete-arch dam completed in 1915 and 

raised 5 feet in 1937 1 ; storage began in 1915. Capacity, 291,600 acre-feet between elevations 2,956 feet (11 feet below center line of sluice gates, 8.5 feet below sill) and 

3,5116 feet (crest of movable spillway at highest position). Dead storage negligible. 

Figures given herein represent original total contents (including bank storage), which, 

according to survey by Bureau of Reclamation completed in December 1947, has been reduced 7,700 acre-feet by deposition of silt. Water is used for irrigation of lands in 

Boise Valley. Gage read once daily about 8 a.m.

Cooperation.- Gage readings and yield table furnished by Bureau of Reclamation.

Contents, in acre-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

73,000

71,440

71,050

70,400

69,880

69,490

69,100

69,100

69,100

69,100

69,100

69,230

69,230

69,230

69,230

70,790

72,610

74,260

76,080

77,760

79,440

81,500

83,750

86,300

88,620

90,860

93,100

95,340

97,200

99,070

101,100

Nor.

103,000

104,800

106,600

108,100

109,800

111,500

113,400

114,300

114,100

113, 80P

113,600

113,200

112,700

112.200

111,800

111,500

111,000

110,600

110,500

111, SOU

112,500

113,000

113,200

113,900

114,700

115,400

116,100

116,500

116,800

117,400

-

Deo.

117,500

117,900

118,100

118,300

118,100

118,300

118,600

119,000

120,600

122,800

125,300

127,600

131,400

136,400

143,000

148,800

152,900

156,000

159,200

162,100

165,100

167,600

169,900

172,200

174,600

176,800

179.000

181,200

182,800

183,900

184,800

Jan.

185,800

187,100

188,300

188,800

189,400

190,600

191,700

192,900

193,800

194,700

196,200

197,400

198,600

199,500

200,500

201,200

202,200

202,900

204 , 100

205,503

206 , 800

208 , 200

209,000

210,200

211.500

212,800

214,000

215,000

216,000

217,000

218,000

Feb.

219,000

220,300

221, TOO

222,400

223,400

224,700

225,800

226,800

227,800

229,100

230,400

231,700

233,800

236,700

239,000

241,100

243,200

244,500

245,600

246,100

246,700

247 , 200

247,800

248,400

248,600

248,900

249,500

249,500

-

_

-

liar.

249,800

249,800

250,000

250,300

250,300

250,660

250,300

250,000

249,500

249,500

250,600

251,700

252,600

251,700

251,200

251,400

251,700

253,400

255,600

257 , 900

261,000

263,600

266,500

268,900

268,900

266,800

264,200

261,900

258,200

254,000

252,800

Apr.

250,600

248,400

246,400

245,300

241,900

240,300

238,800

238,800

238,800

239,300

239,300

238,800

238,800

238,800

242,700

248,400

253,700

259,000

263,900

268,000

271,800

276,200

280,100

284,000

287,000

289,700

292,800

295,000

295,900

296,200

Hay

295,900

295,600

297,200

297,800

297,800

298,100

298,400

300 , 300

300 , 900

300,600

300 , 300

300,000

299,703

298,700

297 , 200

297,500

296,600

295,900

295,300

296,600

297,200

297 , 500

297 , 500

297,800

297,800

297,800

297,800

297,800

298,400

299,000

299,000

June

299,400

299,400

298,700

297,800

297,500

297 , 200

297,200

297,200

298,100

300,000

299,400

299,000

298,400

298,100

298,100

298,100

298,400

298,700

299,000

299,000

298,700

298,400

297,800

297,200

296,600

294,700

293,200

291,300

289,100

286,700

-

July

284,600

282,500

281,000

279,500

278,000

276,200

274,400

272,300

270,600

268,300

266,000

263,600

260,700

257 , 900

255,100

252,300

250,300

248^900

247j_200

245,600

244,000

242,700

241,400

239,800

238,800

237,200

236 , 200

234,900

233,600

232,500

231,500

Aug.

231,400

223,400

228,400

227,100

225 , 800

224,200

222,400

220,600

219,000

217,500

215,800

214,000

212,000

210,000

2C8.200

2C6,500

2C4.600

2C2.700

2C5.700

If 9", SCO

157,400

If 5, 900

194,500

192,700

190,600

188,800

185,503

182,600

179,500

176,400

173,300

Sept.

169,500

165,700

161,700

157,500

153,100

148,600

144,200

140, 200

137,000

134,400

135,200

136,000

137,000

137,800

138,200

138,200

135,000

130,800

126,800

122,400

118,400

114,300

110,500

106,900

104,200

101,300

98,220

95,180

92,140

89,100

Monthly elevation and contents, water year October 1946 to September 1917

Date

Sept 

Oct. 

Nov. 

Dec.

Ca

Jan. 

Feb. 

Mar. 

Apr. 

May 

June 

July 

Aug. 

Sept

.30. ............

31. . .

31.... ............

lendar year 1946... 

31.... ............

28. ..............

31. ...... ....

30. ...............

31... .............

31.. ..............

31... .............

.30. ...............

Water year 1946-47...

Elevation 

(feet)t

3,116.8 

3,133.3 

3,142.7 

3,175.8

-

3,189.6 

3,201.6 

3,202.8 

3,217.5 

3,218.4 

3,214.4 

3,194.8 

3,170.6 

3,126.0

-

Contents 

(acre-feet)

75,520 

101,100 

117,400 

184,800

-

218,000 

249,500 

252,800 

296,200 

299,000 

286,700 

231,500 

173,300 

89,100

-

Change In contents 

during month 

(acre-feet)

+25,580 

+16,300 

+67,400

+116,870

+33,200 

+31,500 

+3 , 300 

+43,400 

+2,800 

-12,300 

-55,200 

-58,200 

-84,200

+13,580
BOISE RIVER BASIN 145

Boise River at Bowling Ranch, near Arrowrock, Idaho

Location.- Water-stage, recorder, 4at. 43°35', long. 115°S8', in sec. 15, T. 3 N., R. 4 E. 

at Dowling Ranch, three-quarters of a mile upstream from Moore Creek and 4 miles downstream from Arrowrock.

Drainage area.- 2,220 square miles.

Records available.- March 1911 to September 1947.

Average discharge.- 36 years, 2,243 second-feet.

Extremes (regulated) - Maximum discharge during year, 11,500 second-feet May 9 (gage 

height,8.06 feet); minimum, 4 second-feet Feb. 8 (gage height, 0.84 foot); minimum 

daily recorded, 6 second-feet Oct. 17-21, 24-27, 31, I.'o-'. 2-6, Dec. 30.

1911-47: Maximum discharge, 18,800 second-feet Apr. 20, 1943 (gage height, 9.93 

feet); minimum, 1 second-foot Jan. 3, 1945; minimum gage height, 0.62 foot Nov. 21, 

22, 1935; minimum daily discharge, 2 second-feet for many days in 1935, 1936, 1942.

Remarks.- Records excellent except those below 20 second-feet, which are fair. Flow 

regulated by Arrowrock Reservoir (see preceding page) and Anderson Ranch Reservoir 

(see p. 152). No diversion above station.

Cooperation.- Two discharge measurements furnished by Water District No. 12-A.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,870

1,720

1,510

1,410

1,260

1,160

1,050

946

919

892

856

856

865

865

376

8

6

6

6

6

6

7

7

6

6

6

6

54

90

8

6

Nov.

7

6

6

6

6

6

238

727

1,040

1,040

1,030

1,030

1,030

1,020

1,020

1,020

1,020

1,020

1,010

1,020

1,020

1,030

1,030

1,030

1,030

1,040

1,040

1,040

1,040

1,040

-

Dec.

1,040

1,040

1,040

1,040

1,040

1,050

1,050

840

13

8

8

10

10

10

10

9

8

8

8

*8

8

8

8

8

8

8

8

7

8

' Jan.

8

8

8

8

8

8

8

8

8

8

8

8

8

|

* 1

 8

> 7

6 1

'f

Feb.

8

8

8

8

7

*7

8

8

7

7

7

13

16

12

10

10

216

584

700

700

700

764

804

812

812

812

812

812

_

_

-

Month

October. ...................................

November ...................................

December ..................................

Calendar year 1945 ................. ....

January. ...................................

February ...................................

March.. ....................................

April. .......... ..................... ....

May............ .................. ........

June .... .............. ...................

July.. .................. .............. ...

August ..................................

September. ............. .............. ....

Water year 1946-47 ......................

Mar.

820

820

820

820

820

820

928

1,000

1,000

901

748

692

1,130

1,490

1,380

1,310

1,150

1,010

1,020

777

819

1,040

1,050

1,600

2,600

3,030

3,010

3,210

3,930

3,610

2,690

Apr.

3,890

4,440

4,810

4,810

4,170

3,810

3,260

2,900

2,900

2,900

2,900

2,920

2,920

2,920

2,960

3,260

3,500

3,690

3,930

4,090

4,110

4,130

4,150

4,170

4,190

4,190

4,770

5,840

6,530

6,660

Secondfoot-days

16,789

23,642

8,334

1,021,692

237

8 , 672

46,045 

119,720

225 950

143^180

110,110

89,930

60, 281

852,890

May

6,450

6,350

7,560

8,090

8,060

8,410

8,870

10,500

11,300

10,300

9,560

9,080

8,670

7,810

5,860

4,770

4,730

4,770

4,920

5,990

6,580

6,820

6,820

7,030

7,200

7,310

7,140

6,610

6,040

6,060

6,290

Maximum

1,870

1,040

1,050

12,500

812

3,930

6,660

11,300

6,500

3,170

2 , 850

11,300

June

6,500

6,480

5,640

5,060

4,700

4,570

4,440

4,620

5,130

5,960

5,550

5,040

4,440

4,260

4,280

4,340

4,590

5,010

5,150

5,060

4,750

4,320

4,070

3,830

4,320

4,340

4,280

4,190

4,170

4,090

-

Minimum

6

6

6

7

692

2,900

4,730 

3,830

3,030

2,310

230

-

July

3,890

3,810

3,730

3,690

3,690

3,690

3,710

3,770

3,770

3,790

3,770

3,770

3,750

3,730

3,730

3,730

3,750

3,730

3,690

3,640

3,580

3,430

3,370

3,260

3,210

3,130

3,100

3,100

3,040

3,030

3,030

Aug.

3,030

3,040

3,060

3,080

3,100

3,130

3,130

3,060

3,100

3,130

3,130

3,130

3,150

3,150

3,170

3,150

3,130

3,120

3,100

3,100

2,970

2,890

2,800

2,490

2,380

2,370

2,360

2,340

2,310

2,310

2,520

Mean

542

788

269

? 799

7.6

310

1,485

3 991 *

4 773

3 552

2,* 901

2 , 00 9

2,337

Sept.

2,620

2,630

2,720

2,750

2,850

2,800

2,770

2,420

2,040

947

230

242

258

284

410

1,480

2,620

2,550

2,740

2,700

2,630

2,600

2,550

2,010

1,990

2,040

2,110

2,120

2,090

2,080

-

Runoff in 

acre feet

33,300

46,890

16,530

2,027,000

470

17,200

91,330

237 500

4.4-fl *pnn

284JOOO

£18,400

178,400

119,600

1,692,000

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Jan. 7-31.
146 BOISE RIVER BASIN

Diversions from Boise River between Dowling Ranch and Boise gaging stations, Idaho

Between Dowling Ranch and Boise gaging stations, 6 canals divert water from Boise 

River for irrigation.

Records of total diversion during irrigation seasons for each canal for years 1919-46, 

and daily flow of New York Canal Februqry 1939 to September 1947 in reports of Geological 

Survey. Records of daily diversion for each canal during irrigation seasons f^om 1916 to 

1947 on file in office of Idaho State Reclamation Engineer.

Daily or several times weekly gage readings obtained, frequent discharge measurements 

made, and records summarized under direction of W. E. Welsh, watermaster for Biise River.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

Ootober ....................................

November. ..................................

December. ..................................

Calendar year ......................

January ....................................

February ...................................

March.. ....................................

April ......................................

May........................................

June .......................................

July .......................................

August .....................................

September. .................................

The period........ .......................

Mar. Apr.

620

1.08O

1,080

1,080

1,090

1,300

1,310

1,440

1,450

1,540

1,560

1,710

2,030

2,040

2,280

2,510

2,780

2,970

3,080

3,150

3,270

3,340

3,350

3,350

3,380

3,390

3,450

3,520

3,400

3,460

Seoondfoot-days

70,010

109,560

93,300

_

70,010

109,560

93,300

82,940

71,910

49,117

_

May

3,470

3,510

3,570

3,580

3,520

3,580

3,570

3,560

3,570

3,500

3,560

3,550

3,500

3,540

3,530

3,510

3,530

3,510

3,550

3,560

3,540

3,550

3,530

3,540

3,540

3,540

3,520

3,510

3,500

3,500

3,520

Maximum

3,520

3,580

3,570

_

3,520

3,580

3,570

2,870

2,510

2,410

-

June

3,490

3,440

3,400

3,360

3,200

3,090

3,040

3,000

2,560

2,590

2,670

2,680

2,670

2,780

3,180

3,180

3,370

3,570

3,380

3,390

3,400

3,400

3,400

3,200

3,030

3,020

2,990

2,930

2,950

2,940

Minimum

62O

3,470

2,560

_

620

3,470

2,560

2,330

1,990

51

-

July

2,870

2,820

2,770

2,760

2,770

2,820

2,810

2,830

2,860

2,860

2,860

2,860

2,840

2,790

2,740

2,740

2,760

2,780

2,740

2,720

2,670

2,630

2,550

2,510

2,460

2,430

2,350

2,330

2,340

2,330

2,340

Arg.

2,340

2,350

2,410

2,380

2,440

2,450

2,510

2,390

2,420

2,430

2,420

2,430

2,430

2,430

2,460

2,460

2,460

2,410

2,390

2,400

2,360

2,300

2,240

2,110

2,110

2,100

2,100

2,110

2,050

2,030

1,990

Mean

2,334

3,534

3,110

_

2,334

3,534

3,110

2,675

2,320

1,637

-

Sept.

1,920

1,900

1,960

2,000

2,110

2,120

2,120

2,040

1,930

1,730

53

53

52

52

51

386

1,780

2,100

2,290

2,410

2,360

2,390

2,350

2,030

1,740

1,760

1,900

1,860

1,860

1,810

Runoff in 

acre-feet

138,900

217,300

185,100

_

138,900

217,300

185,100

164,500

142,600

97,420

945,800
BOISE RIVER BASIN 147

Bois* River at Boise, Idaho

Location.- Water-stage recorder, lat. 43°37', long. 116°13', in SW£ 10, T. 3 N., R. 2 E., 

at Capitol Boulevard Bridge at Boise. Datum of gage is 2,675.46 feet above mean sea 

level (datum of Corps of Engineers, Boise River Surveys).

Records available.- March 1938 to September 1939 (gage heights -only), February 1940 to 

septemoer j.aiY.

Extremes.- Maximum discharge during year, 8,820 second-feet May 9 (gage height, 7.69 

i'eet); minimum, 20 second-feet Feb. 28, Mar. 1, 6 (gage height, 2.77 fe3t); minimum 

daily, 22 second-feet Mar. 6, 7.

1940-47 (regulated): Maximum discharge, 21.000 second-feet Apr. 20, 1943 (gage 

height, 10,00 feet, site and datum then in use); minimum, 7 second-feet Dec. 16, 1942 

(gage height, 1.79 feet, site and datum then in use); minimum daily, 8 second-feet 

Mar. 8-15, Dec, 6, 1941.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Flow regulated by Arrowrock Reservoir (see p. 144). New York, Ridenbaugh, and several 

smaller canals divert between Moore Creek and this station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

389

426

396

418

410

347

328

286

280

275

244

244

275

270

347

210

118

102

118

113

115

130

152

166

152

142

145

139

219

145

115

Nov.

118

118

113

105

110

113

95

65

35

41

34

30

28

27

24

25

25

27

40

244

184

115

100

152

145

159

177

142

148

166

Dec.

152

124

108

105

95

136

130

130

134

197

188

351

820

1,080

1,300

888

611

450

466

450

368

316

286

259

249

249

259

a238

a210

al70

al30

Jan.

a!27

133

85

92

97

113

139

136

133

127

139

127

121

124

97

105

102

118

133

133

136

139

142

152

159

159

166

155

136

133

136

Feb.

142

148

148

159

152

152

152

133

133

159

162

206

474

566

410

142

50

40

34

36

29

27

28

28

28

29

25

24

-

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May........................................

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

25

27

27

30

25

22

22

27

25

71

113

40

118

695

725

647

611

458

516

516

1,430

1,920

2,010

2,210

3,070

3,720

3,720

3,450

3,600

3,620

2,460

Apr.

4,120

4,320

4,480

4,380

3,900

3,190

2,810

2,140

2,120

2,120

1,940

1,770

1,730

1,510

1,360

1,380

1,550

1,470

1,610

1,730

1,750

1,710

1,650

1,550

1,530

1,530

1,880

2,930

3,700

3,920

-

Secondfoot-days

7,216

2,905

10,649

652,487

3 994

3,816

35,950

71,780

137,270

61,670

31,591

22 113

14^717

403,671

May

3,750

3,530

4,550

5,320

5,300

5,550

5,910

7,400

8,390

8,120

7.O6O

6,460

6,040

5,280

3,680

2,070

1,880

1,900

1,940

2,810

3,500

3,750

3,780

3,950

4,080

4,220

4,100

3,720

3,120

2,900

3,210

Maximum

426

244

1,300

10.8OO

166

566

3,720

4,480

8,390

3,820

1,270

864

842

8,390

June

3,480

3,550

2,970

2,350

2,030

1,940

1,860

2,070

2,930

3,820

3,580

3,120

2,230

1,630

1,400

1,320

1,430

1,820

2,100

2,050

1,820

1,270

1,000

950

1,380

1,590

1,570

1,510

1,470

1,430

-

Minimum

102

24

95

24

85

24

22

1,360

1,880

950

820

347

286

22

July

1,270

1,200

1,120

1,060

1,080

1,030

1,040

1,080

1,060

1,040

1,060

1,040

1,060

1,090 i.ioo

1,100

1,090

1,090

1,080

1,060

1,030

975

962

912

888

875

864

853

842

820

820

Aug.

820

809

787

787

787

798

787

776

787

831

842

842

864

853

864

853

842

831

820

820

809

745

755

647

403

389

368

368

347

375

507

Mean

233

9(3.8

344

1.78R

129

136

1,160

2,393

4,428

2,056

1,019

713

491

1,106

Sept.

765

755

809

787

842

798

820

675

382

334

304

292

286

322

361

584

620

602

532

458

410

368

354

354

322

292

286

347

328

328

-

Runoff in 

acre-feet

14,310

5,760

21,120

1,294,000

7,920

7,570

71,310

142,400

272,300

122,300

62,660

43,860

29,190

800,700

a No gage-height record; discharge computed on fcasis of records for Moore Creek near Arrowrock.
148 BOISE RIVER BASIN

Diversions from Boise River between Boise and Notus gaging stations, Idqho

Between Boise and Notus gaging stations, 21 principal canals and several srrall farm 

laterals divert water from Boise River for irrigation.

Records of total diversion during irrigation seasons for each canal for years 1919-46, 

in reports of Geological Survey. Records of daily diversion for each canal during irrigation seasons from 1916 to 1947 on file in office of Idaho State Reclamation Ergineer.

Daily or several times weekly gage readings obtained, frequent discharge measurements 

made, and records summarized under direction of W. E. Welsh, watermaster for loise River.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

October. ...................................

November ...................................

December. ..................................

Calendar year ......................

January ....................................

February. ..................................

March ......................................

April ......................................

May.................................. .....

June ................................. .....

July... ....................................

August .....................................

September. ............ ....................

The period ...............................

Mar. Apr.

123

155

165

173

179

189

199

201

201

216

232

209

289

391

566

651

909

963

994

1,110

1,260

1,420

1,530

1,660

1,760

1,900

1,780

2,200

2,230

2,260

-

Secondfoot-days

.

_

26,115

72,760

53,300

55,720

40,775

36,930

-

May

2,300

2,360

2,160

2,340

2,430

2,460

2,480

2,470

2,470

2,450

2,380

2,360

2,350

2,350

2,290

2,210

2,270

2,310

2,330

2,380

2,410

2,410

2,390

2,380

2,360

2,350

2,340

2,320

2,260

2,210

2,180

Maximum

_

_

2,260

2,480

2,140

2,060

1,490

1,650

-

June

2.O8O

1,970

1,910

1,830

1,820

1,820

1,770

1,700

1,630

1,540

1,460

1,320

1,510

1,520

1,560

1,610

1,450

1,510

1,910

1,960

1,940

1,780

1,690

1,820

1,840

2,030

2,100

2,140

1,960

2,120

-

Minimum

_

_

,

123

2,160

1,320

1,500

925

1,000

-

July

2,030

2,060

1,980

1,860

1,860

1,840

1,820

1,760

1,770

1,810

1,820

1,850

1,840

1,880

1,840

1,900

1,890

1,850

1,840

1,800

1,800

1,770

1,750

1,720

1,740

1,670

1,660

1,630

1,600

1,580

1,500

Alg.

1,490

1,420

1,410

1,360

1,380

1,450

1,370

1,320

1,300

1,320

1,380

1,430

1,420

1,450

1,470

1,460

1,440

1,460

1,440

1,470

1,420

1,390

1,380

1,400

1,060

1,040

1,020

1,020

954

926

925

Mean-

_

_

_

870

2,347

1,777

1,797

1,315

1,231

-

Sept.

1,210

1,340

1,390

1,430

1,530

1,590

1,610

1,650

1,360

1,190

1,120

1,100

1,100

1,110

1,120

1,320

1,330

1,280

1,270

1,210

1,180

1,150

1,080

1,080

1,070

1,040

1,000

1,020

1,040

1,010

-

Runoff in 

acre-feet

_

_

_

51,800

144,300

105,700

110,500

80,880

73,250

566,400
BOISE RIVER BASIN 149

Boise River at Notus, Idaho

Location.- Water-stage recorder, lat. 43°43', long. 116°48', In SE-f sec.'34, T. 5 N. , 

FT4 w., 360 yards upstream from steel highway bridge, a quarter of a mile southeast 

of Notus, and 7 miles northwest of Caldwell. Datum of gage Is 2,288.55 feet above 

mean sea level (datum of Corps of Engineers - Boise River Surveys).

Records available.- April 1920 to September 1947

Average discharge.- 25 years (1920-22, 1924-47), 1,092 second-feet.

Extremes (regulated).- Maximum discharge during year, 7,640 second-feet May 10 (gage 

height, 7.43 feet); minimum not determined, occurred during periods of fragmentary 

gage-height record; minimum daily, 24 second-feet July 4.

1920-47: Maximum discharge, 20,500 second-feet Apr. 20, 1943 (gage height, 10.43 

feet); minimum observed, 10 second-feet Aug. 18, 21, 1920.

Remarks.- Records good except those for periods of fragmentary gage-height record, which 

are fair. Station is below all large diversions for irrigation in Bois? Valley; many 

diversions above. Flow regulated by Arrowrock Reservoir (see p. 144)and Anderson 

Ranch Reservoir (see p. 152),

Discharge, in seoond-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

268

346

508

534

562

562

551

626

590

568

596

692

674

680

814

1,090

896

762

704

692

674

674

692

692

692

692

692

680

674

756

692

Nov.

656

632

614

608

602

602

632

668

626

632

626

596

579

573

568

551

551

556

568

620

782

736

662

644

692

736

782

782

736

723

-

Dec.

716

698

662

632

626

573

638

638

638

644

692

692

1,000

1,470

1,980

1,730

1,310

996

931

952

896

854

814

738

768

762

782

762

723

644

620

Jan.

584

573

562

545

540

568

573

584

579

584

602

6O2

590

579

463

540

513

498

534

540

573

562

562

568

590

608

579

596

573

545

545

Feb.

545

556

573

562

556

556

551

545

540

551

551

6 O2

801

1,000

996

647

626

513

477

453

439

421

412

399

403

399

399

390

.

-

Month

October ............................... ....

November ...................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February ......................... .........

March ......................................

April ......................................

May.. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

378

394

399

416

390

374

374

374

378

390

444

472 399-

562

1,070

1,090

1,030

966

875

903

1,180

2,230

2,450

2,500

3,180

4,040

4,040

3,930

3,640

3,900

3,220

Apr.

3,70O

4,46O

4,850

4,830

4,710

3,660

3,450

2,590

2,460

2,390

2,300

2,040

1,940

1,600

1,310

1,040

1,090

854

794

827

794

626

492

279

140

90

73

438

1,420

2,150

Secondfoot-days

20 325

19J335

26,631

615,089

17,454

15,663

45 , 988

57,397

94,970

42,154

1,290

1,291

3,940

346,438

May

2,100

1,790

2,170

3,420

3,720

3,640

4,000

4,790

6,430

7,410

6,220

5,840

5,250

4,550

3,450

1,620

903

762

692

723

1,690

2,230

2,3OO

2,290

2,510

2,740

2,780

2,760

2,160

1,780

2,250

Maximum 

1,090

782

1,980

10,400

608

1,000

4,040

4,850

7,410

3,840

96

56

295

7,410

June

2,660

2,97O

2,900

2,150

1,760

1,550

1,490

1,570

2,620

3,420

3,840

3,360

2,580

1,790

1,160

814

662

910

910

875

827

551

296

106

60

54

56

57

57

99

-

Minimum

268

551

573

35

463

390

374

73

692

54

24

32

33

24

July Aug.

96 41

45 45

34 46

f24 47

f25 41

f25 40

29 42

f28 37

f26 33

32 34

f30 36

f26 32

fZ8 35

33 39

38 56

41 42

41 44

40 46

41 46

44 49

61 48

95 44

56 44

42 38

44 39

41 48

44 48

42 42

49 36

46 36

44 37

Mean

ere

644

8f9

1,685

563

5?9

1,483

1 9}3

3^064

1,4C5

41.6

41.6

121

949

Sept.

37

37

33

37

36

41

49

113

205

169

168

137

109

102

88

71

88

153

273

295

256

210

193

171

149

152

143

137

139

149

-

Runoff in 

acre-feet

40,310

38,350

52,820

1,22O,OOO

34,620

31,070

91,22O

113,800

188,400

83,610

2,560

2,560

7,810

687,100

f Fragmentary gage-height record; discharge computed from partly estimated gage height.
150 BOISE RIVER BASIN 

Middle Fork Boise River near Twin Springs, Idaho

Location.- Water-stage recorder, lat. 43°42'45", long. 115°37'50", in sec. 4, T. 4 N., R. 

i E., 1,000 feet upstream from confluence with North Fork Boise River, l.OCO feet upstream from Troutdale ranger station, and 4-| miles northeast of Twin Springs.

Drainage area.- 382 square miles.

Records available.- October 1946 to September 1947.

Extremes.- Maximum discharge during year, 3,830 second-feet May 9 (gage height, 6.88 feet); 

minimum, 168 second-feet Jan. 16; minimum gage height, 1.77 feet Sept. 7, fO.

Remarks.- Records excellent except those for Mar. 1 to Apr. 30, which are gooc1 , and those 

for periods of ice effect or no gage-height record, which are fair. No diversion or 

regulation above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

270

500

350

300

270

260

250

250

240

240

230

230

220

220

220

220

220

220

220

220

270

300

400

300

289

309

289

275

252-

253

243

Nov.

246

207

213

237

237

231

237

231

219

228

225

213 aie

222

213

202

213

231

364

412

323

302

356

378

338

331

313

309

- 338

334

~

Dec.

309

295

282

278

285

331

338

327

309

292

313

477

728

1,010

899

635

432

393

432

375

352

334

309

292

299

302

302

269

240

237

213

Jan.

215

»205

195

190

200

225

215

205

210

225

235

220

230

210

185

180

190

2OO

210

230

240

228

231

246

231

234

216

196

195

200

205

Month

October .......................

November ......................

December ......................

Calendar year .........

January .......................

February ......................

March ....................... .

April .........................

May ...........................

Juue ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

210

225

231

210

216

219

216

219

219

240

240

278

382

364

349

345

349

367

371

356

341

327

316

331

*338

331

323

302

_

-

-

Secondroot-days

8,330

3; 119

11; 889

.

6 ,597

is! 135

27,943

72 , 280

46,090

20,057

7 ,897

5,919

238,471

Mar.

_ 285

299

295

289

275

262

265

268

265

292

306

292

295

316

364

452

564

660

723

750

778

789

806

723

655

611

587

602

621

701

745

Maximum

500

412

1,010

.

246

382

1,630

3,680

2,170

1,040

334

237

3,680

Apr.

712

685

655

630

587

564

528

515

506

494

485

494

560

750

988

1,090

1,160

1,170

1,140

1,200

1,280

1,260

1,210

1,140

1,090

1,140

1,270

1,450

1,630

1,560

-

May

1,570

2,080

2,910

3,090

2,930

2,940

3,250

3,680

3,640

2,870

2,290

2,030

1,930

1,770

1,680

1,720

1,850

1,900

1,960

2,130

2,220

2,300

2,140

2,120

2,230

2,320

2,480

2,270

1,980

1,880

2,120

Minimum

220

202

213

_

210

262

485

1,570

882

349

199 

182

180

June

2,170

2,120

1,960

1,730

1,550

1,530

1,500

1,680

2,090

1,830

1,600

1,400

1,330

1,390

1,470

1,6OO

1,800

1,900

1,880

1,760

1,430

1,230

1,190

1,170

1,270

1,350

1,240

1,080

958

882

Mean

269

271

384

_

213

293

488

931

2,332

1 f 536

647

255

197

653

July

894

952

1,040

1,000

946

934

946

946

899

855

806

728

670

645

635

611

569

542

520

494

477

460

440

424

409

397

382

371

364

352

349

Per 

square 

mile

0.704

.709

1.01

.

. 558

. 767

1 .28

2.44

6.10

4.02

1 69

 668 

.516

1.71

A'.g.

334

327

316

313

302

295

289

275

265

265

265

259

259

253

249

243

237

237

234

246

240

<-,_

'37

=53

34

228

219

J

13

07

=05

L99 . 

199

Sept.

202

196

205

202

196

185

196

237

219

210

207

199

196

191

193

193

205

205

202

199

199

193

191

185

185

188

188

185

185

182

Runoff

Inches

.79

1 . 16

_

.64

1^47

2.72

7.04

4.49

1 .95

.77 

.58

23.22

Acre-feet

16,520

16,100

23,580

_

13,080

16,290

30,020

55,420

143,400

91,420

39,780

15,660 

11,740

473,000

Winter discharge measurement made on this day. 

Note.- No gage-height record Oct. 1-24; discharge computed on basis of records for Boise River 

near Twin Springs and records for other nearby streams. Stage-discharge relation affected by ice 

Jan. 1-21, 29, 30.
BOISE RIVER BASIN 151

South Pork Boise River near Featherville, Idaho

Location.- Water-stage recorder, lat. 43°29'40", long. 115°18'20", in lot 6, NE^ sec. 19, 

mm. , R. 10 E., 2j miles upstream from Deer Creek and 8 miles southwest of Featherville.

Drainage area.- 635 square miles.

Records available.- April 1945 to September 1947.

Extremes . - Maximum discharge during year, 4,300 second-feet May 9 {gage height, 6.75 feet); 

minimum , 158 second-feet Dec. 31; minimum gage height, 1.59 feet Dec. 31, Sept. 7.

1945-47: Maximum discharge, that of May 9, 1947; minimum recorded, 126 second- feet 

Dec. 2, 1945 (gage height, 1.40 feet).

Remarks . - Records excellent except those for periods of ice effect or no gsge-height record, which are fair. Small ranch diversions above station. No regulation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

281

512

340

292

274

259

256

252

252

249

242

242

242

239

239

236

239

239

236

236

281

323

405

315

246

a310

a295

a280

a275

a270

a260

Nov.

a265

a220

a210

a240

a260

a260

263

256

233

252

246

223

230

259

236

209

242

266

335

369

308

296

323

311

281

296

281

274

274

266

-

Dec.

246

249

239

256

270

304

281

270

266

256

270

319

387

467

467

369

217

223

296

308

270

259

236

209

242

327

311

236

192

*20S

174

Jan.

206

206

192

187

203

b240

226

206

212

230

259

220

233

233

b!90

blSO

b!85

b200

b210

b240

b250

233

230

239

233

233

214

200

200

203

203

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March ..................... ...

April ..................... ...

Mflv Bay ....................... ...

June ...................... ...

July ...................... ...

August ........................

September .....................

Water year 1946-47 ...... ...

Feb.

212

223

223

212

214

214

214

206

203

214

226

*246

281

274

266

266

266

270

270

270

266

292

296

304

323

323

311

284

_

_

-

Secondfoot-days

8,617

7,984

8,619

305,387

6,696

7,169

16,142

39,275

82,440

44,352

16 , 234

6 , 798

5,591

249,917

Mar.

263

304

300

284

274

249

266

266

256

281

274

249

259

284

323

419

562

683

772

812

857

877

864

766

702

690

690

727

772

898

919

Maximum

512

369

467

4,000

259

323

919

2,120

4,040

2,100

850

259

203

4,040

Apr.

864

831

786

746

702

683

647

647

635

653

665

702

864

1,230

1,560

1,700

1,760

1,790

1,730

1,800

1,860

1,830

1,780

1,650

1,570

1,630

1,810

2,000

2,120

2,030

-

May

2,060

2,510

3,310

3,610

3,460

3,430

3,700

4,030

4,040

3,310

2,770

2,560

2,360

2,210

2,080

2,090

2,180

2,240

2,280

2,370

2,430

2,510

2,400

2,320

2,380

2,410

2,560

2,440

2,200

2,080

2,110

Minimum

236

209

174

174

180

203

249

635

2,060

281

187

174

174

June

2,100

2,080

1,960

1,800

1,680

1,650

1,590

1,740

1,890

1,690

1,560

1,430

1,350

1,390

1,430

1,500

1,610

1,660

1,640

1,560

1,400

1,240

1,170

1,110

1,110

1,130

1,090

996

919

877

Mean

278

? 7ft°

oo /

216

521

1,309

2 , 660

1,480

524

219

186

685

July

850

838

831

805

766

746

727

721

690

659

617

578

547

522

502

482

467

443

419

405

392

374

361

352

340

323

308

304

296

288

281

Per 

square 

mile

0.438

419

.438

1 .32

.340

.403

. 820

2 .06

4.19

2 .33

.825

.345

.293

1.08

Aug.

259

259

256

252

246

242

236

230

223

223

226

223

220

214

212

209

203

198

198

212

214

214

230

223

217

200

195

195

192

190

187

Sept.

187

184

187

187

180

174

174

203

198

192

187

184

177

174

174

182

187

192

192

195

192

190

187

187

187

190

187

187

187

187

Runoff

Inches

0.50

.47

.50

i / . by

39

.42

95

z'.so

4 . 82

. 96

.40

.33

14.64

Ac re- feet

17,090 

15,840

17,100

605,700

13,280

-14,220

32,020

77,900

163, 500

87 , 970

32,200

13,480 

11,090

495,700

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of 

streams.

b Stage-discharge relation affected by Ice.

eather records and records for nearby
152 BOISE RIVER BASIN

Anderson Ranch Reservoir at Anderson Ranch Dam, Idaho

Location.- Staff gage, lat. 43°21'30", long. 115°27'10", in SE£ sec. 1, T. 1 3., R.

 3~E., on inlet structure of outlet works of dam on South Fork Boise River, 1^ miles 

downstream from Camas Creek and 3 miles northwest of Bennett (nixie Store). Datum 

of gage is at mean sea level (surveys by Bureau of Reclamation).

Drainage area.- 980 square miles.

Records available.- December 1945 to September 1947.

Extremes.- Maximum contents observed during year, 140,000 acre-feet June 18, 19 (eleva-

 tion, 4,101.1 feet); minimum observed, 1,742 acre-feet Sept. 9, 10, 16-20, 22-27, 29,

30 (elevation, 3,994.7 feet).

1945-47: Maximum contents observed, that of June 18, 19, 1947; minimum, no usable

contents prior to Jan. 27, 1946. 

Remarks.- Reservoir is formed by earth-fill dam, under construction. Storage began

 Dec. 15, 1945. Usable contents, 464,200 acre-feet between elevations 3,993 and 4,196 

feet (top of spillway gates). Elevation of spillway crest. 4,174 feet, ani of top of 

dam, 4,206 feet. Dead storage below 3,992 feet is 28,980 acre-feet. Figu-es given 

herein represent usable contents. Water is used for irrigation of lands in Boise 

Valley. Gage read once daily about 8 a.m.

Cooperation.- Gage readings and capacity table furnished by Bureau of Reclamation.

Contents, in acre-feet, water year October 1946 to September 1947

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.

1,940

2,402

2,736

2,669

2,602

.

2,402

2,402

2,402

2,336

2,336

2,270

2,270

2,270

2,270

2,270

2,270

2,204

2,270

2,336

2,602

2,669

2,669

2,602

2,535

2,468

2,402

2,336

Nov.

2,336

2,336

2,138

2,138

2,204

2,270

2,270

2,270

2,270

2,270

2,204

2,204

2,204

2,204

2,204

2,336

2,602

2,736

2,669

2,669

2,736

2,736

2,736

2,736

2,736

2,736

-

Dec.

2,468

2,468

2,402

2,402

2,602

2,669

2,602

2,602

2,602

2,669

3,004

3,406

4,085

3,813

3,339

3,071

3,071

3,071

2,87O

2,736

2,736

2,736

2,736

3,881

4,496

Jan.

5,537

6,029

6,597

7,682

8,344

9,014

9,692

10,300

11,000

12,330

13,210

13,610

14,180

14,590

15,090

16,510

17,280

18,050

18,750

19,450

20,160

21,690

22,320

22,970

23,710

24,270

Feb.

25,020

26,260

26,840

27,510

28,100

28,780

29,380

30,670

31,380

32,190

33,120

34,050

34,990

36.680

37,530

38,500

39,370

40,140

_

43,030

44,270

45,300

46,330

47,260

_

-

Mar.

_

49,720

50,800

51,760

52,480

53,210

_

55,670

56,800

57,700

58,720

59,630

63,900

66,100

68,480

70,920

73,700

_

81,950

84,170

86,260

88,380

90,370

_

97,410

Apr.

100,100

101,200

99,360

97,410

-

_

95,830

95,140

94,270

92,390

91,550

-

-

90,210

88,220

86,590

85,290

84,170

-

-

81,320

80,070

78,990

77,760

76,390

.

-

72,660

72,370

72,370

-

Hay

72,080

73,850

-

-

89,870

94,620

99,180

102,100

105,900

-

_

106,500

104,600

103,500

104,300

107,600

-

-

121,200

122,200

123,300

124,700

126,000

-

-

125,600

126,200

127,500

128,400

-

a!28,900

June

.

129,400

131,200

132,700

133,900

135,000

-

-

138,400

138,200

138,400

138,200

138,400

-

-

139,300

139,800

140,000

140,000

139,800

139,500

138,800

137,900

137,900

137,900

137,900

137,900

137,700

137,200

136,800

-

July

136,300

135,700

135,000

134,300

133,600

133,000

132,100

131,400

130,500

129,400

128,600

127,500

126,400

125,400

124,300

123,000

120,200

117,300

114,500

111,600

108,800

105,700

103,000

99,890

97,230

94,270

91,380

88,550

85,780

83,050

79,600

Aug.

76,240

72,960

69,760

63,650

63,490

60,420

57 , 440

54,550

51,160

47,840

44,730

41,680

38,610

35,720

32,190

28,780

£5,590

£2,600

18,920

15,760

13,050

9,844

7,245

5,187

4,085

3,205

2,736

2,336

2,204

2,006

al,940

Sept.

-

1,808

1,808

1,808

1,808

1,808

-

1,808

1,742

1,742

1,808

1,808

1,808

-

1,676

1,742

1,742

1,742

1,742

1,742

_

1,742

1,742

1,742

1,742

1,742

1,742

-

1,742

1,742

-

Monthly elevation and contents, water year October 1946 to September 1947

Oct.

Dec.

Cal

Sept.

Wat

Date

30. ....................

31.. ...................

30. ....................

31. ....................

endar year 1946. .......

31.. ...................

30. ....................

30...... ...............

31. ....................

30. ....................

er year 1946-47. .......

Elevation 

(feet)t

3,998.8

_

4 023 2

3,994.7

-

Contents 

(acre-feet)

1,940

4,496

-

97,410

79,600

1,742

-

Change in contents 

during month 

(acre-feet)

+396

+1,760

+4,496

+50,150

-57,200

-198

-198

t Elevation at about 8 a.m.

a No gage reading; contents interpolated.
BOISE RIVER BASIN

South Fork Boise River at Anderson Ranch Dam, Idaho

Location.- Water-stage recorder, lat. 43°°0', long. 115°29', in SW-J sec. 11, T. IS., R. 

BE., 600 feet upstream from Dixie Creek, 1^ miles downstream from Anderson Ranch 

Reservoir, and 2ir miles northwest of Bennett (Dixie store).

Drainage area.- 982 square miles. Prior to October 1946, 992 square miles (including 

tnat or Dixie Creek).

Records available.- April 1943 to September 1947 (include flow of Dixie Creek prior to 

October 1946 and exclude Dixie Creek thereafter).

Extremes.- Maximum discharge during year, 5,250 second-feet Apr. 9 (gage height, 7.78 

reet); minimum, 1 second-foot Mar. 1-3, 5-9.

1943-47: Maximum discharge, 9,100 second-feet Apr. 17, 1943 (gage height, 10.06 

feet); minimum, that of Mar. 1-3, 5-9, 1947.

Remarks.- Records excellent except those below 10 second-feet, which are poo . Some 

water stored in Little Camas Reservoir and diverted for irrigation of abojt 5,000 

acres of land in vicinity of Mountain Home. Flow regulated by Anderson Ranch Reservoir beginning Dec. 15, 1945.

Cooperation.- Water-stage recorder inspected by Bureau of Reclamation.

Rating tables, water year 1946-47, except periods of Ice effect

(gage height, In feet, and discharge, in second-feet)

(Shifting-control method used Dec. 16-27)

Oct. 1 to Dec. 27 Dec . 28 to Sept. 3O

2.6 285 1.1 1 1.7 52 3.5 685

2.9 405 1.2 4

3.2 550 1.3 8

3.5 730 1.4 16

1.9 86 4.0 1,020

2.2 152 5.0 1,860

2.6 268 6.0 2,910

1.5 26 3.0 422 7.1 4,29O

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

285

392

450

436

414

400

382

374

364

356

348

344

340

336

332

332

332

328

324

324

336

364

418

436

423

414

410

396

382

364

356

UQV.

348

340

320

313

320

332

34C

*340

336

33?

332

328

313

313

320

313

310

320

352

405

423

428

428

432

428

428

423

410

400

396

Dec.

387

378

364

356

369

400

414

414

405

396

387

418

490

574

676

676

604

515

475

465

460

436

418

382

364

369

387

170

b6

6

*16

Jan.

5

b4

. b2

Feb.

b2

3

3

2

2

,

2

2

2

2

2

bZ

*b3

2

3

3

2

2

2

2

2

2

2

3

2

2

2

2

_

_

-

Month

October. ...................................

November. ...................................

December. ..................................

Calendar year 1946 ......................

January ....................................

February. ..... ............................

March. .....................................

April ...................................

May. ........... ........................

June ..................... .................

July .......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

2

2

2

2

2

2

2

2

2

7

7

2

3

*3

3

3

3

2

3

4

3

4

6

6

4

6

4

5

6

6

129

Apr.

1

2

1

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

2

2

2

2

2

2

2

2

£

2

2

Second 

foot-days

11,492

10,823

12,177

415,391

105

63

237

66,006

74,921

48,670

48,390

45,704

7,034

325,622

516

620

460

180

320

320

330

340

800

350

350

350

340

300

930

910

910

900

890

870

870

860

830

810

810

790

770

760

760

760

May

2,120

1,920

1,570

1,350

1,820

2,220

2,960

3,500

3,780

4,080

4,240

4,210

3,770

2,790

1,490

450

445

436

1,620

2,360

2,370

2,370

2,720

2,920

2,920

2,690

2,360

2,360

2,360

2,360

2,360

Maximum

450

432

676

6,040

3

129

2,930

4,240

2,360

2,020

1,990

255

4,240

June

2,360

1,960

1,450

1,460

1,460

1,470

1,480

1,490

1,960

2,100

1,940

1,680

1,510

1,510

1,510

1,520

1,680

1,890

1,970

1,940

1,880

1,860

1,530

1,310

1,310

1,300

1,290

1,290

1,280

1 , 280

Minimum

285

310

6

2

2

516

436

1,280

1,190

268

218

-

July

1,270

1,260

1,250

1,250

1,240

1,230

1,220

1,220

1,210

1,210

1,210

1,200

1,190

1,190

1,190

1,600

1,990

1,970

1,950

1,940

1,930

1,910

1,890

1,870

1,850

1,830

1,820

1,790

1,770

1,920

2,020

Aug.

1,990

1,9

1,9

1,8

40

00

70

1,830

1,810

1,7

1,8

1,9

70

70

10

1,850

1,810

1,7

1,7

1,8

60

10

80

1,930

1,830

1,7

1,9

1,8

50

00

60

1,690

1,790

1,6

1,3

1,C

80

90

40

745

554

4

3

;

2

2

Mean

371

361

393

1,138

3.4

2.2

7.6

2,200

2,417

1,622

1,561

1,474

234

892

31

55

09

82

68

Sept.

255

246

242

239

236

233

227

233

239

242

239

230

224

221

218

218

224

227

233

236

239

239

239

236

236

233

236

236

239

239

-

Runoff in 

acre-feet

22,790

21,470

24,150

823,900

208

125

470

130,900

148,600

96,540

95,980

90,650

13,950

645,833

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
154 BOISE RIVER BASIN

South Fork Boise River near Lenox, Idaho

Location.- Water-stage recorder, lat. 43°30', long. 115°41', in see. 24, T. 2 N., R. 6 

K., J.-J miles upstream from Smith Creek, 4 miles upstream from flow line of Arrowrock 

Reservoir, 4 miles west of discontinued Lenox post office, 13 miles upstream from 

mouth, and 17 miles upstream from Arrowrock Dam.

Drainage area.- 1,090 square miles.

Kecoras available.- March 1911 to December 1947 (discontinued).

Average aiscnargeT- 34 years (1911-45), 960 second-feet.

tixtremea.- Maximum discharge during period October 1946 to December 1947, 5,280 secondI'eet (regulated) Apr. 9 (gage height, 7.55 feet); minimum, 26 second-feet (regulated) 

Nov. 23, 1947 (gage height, 1.03 feet).

1911-47; Maximum discharge, 9,550 second-feet Apr. 17, 1943 (gage height, 10.05 

feet); minimum, 26 second-feet (regulated) Feb. 6, 1946, Nov. 23, 1947.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

rair. Some water stored in Little Camas Reservoir and diverted' for irrigation of 

about 5,000 acres of land in vicinity of Mountain Home. Storage in Anderson Ranch 

Reservoir began Dec. 15, 1945.

Discharge, in second-feet, 1946-47

1946-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

309

375

464

469

458

436

419

411

399

391

387

379

375

375

371

367

367

367

363

363

371

391

431

469

464

452

448

431

419

403

395

Nov.

387

383

359

344

344

352

359

359

363

363

363

359

352

344

344

344

336

344

371

431

452

456

4 9

469

464

464

464

456

444

431

~

Dec.

423

411

403

395

399

452

448

448

448

4^6

423

452

511

607

700

715

670

579

533

520

516

502

481

456'

431

427

448

364

62

52

49

Jan.

54

47

44

42

42

40

44

46

41

40

40

40

Feb.

40

80

79

74

67

62

57

-

,-

-

Mar.

55

62

61

64

62

60

58

60

61

147

147

109

99

105

110

107

114

114.

107

103

103

103

114

107

99

d4

91

89

89

89

116

Apr.

402

1,420

2,750

1.29Q

1,410

1,410

1,410

1,410

1,870

1,420

1,410

1,400

1,400

2,140

3,040

3,030

3,020

3,020

3,010

2,980

2,970

2,970

2,950

2,920

2,900

2,890

2,860

2,860

2,850

2,850

-

May

2,390

1,990

1,750

1,390

1,710

2,270

2,790

3,560

3,820

4,090

4,340

4,320

3,990

3,060

2,020

538

520

516

1,250

2,400

2,410

2,410

2,660

.2,980

2,980

2,880

2,410

2,410

2,420

2,420

2,420

June

2,420

2,210

1,480

1,470

Ij470

1,470

1,470

1,480

1-.820

2,170

1,950

1,760

1,490

1,480

1,480

1,480

1,590

1,820

1,930

1,920

1,860

1,860

1,640

1,290

1,290

1,280

1,280

1,280

1,280

1,280

-

July

1,270

1,270

1,260

1,250

1,250

1,250

1,240

1,240

1,230

1,220

1,220

1,220

1,220

1,220

1,200

1,480

2,030

2,020

1,990

1,980

1,980

1,960

1,940

1,930

1,910

1,900

1,880

1,840

1,820

1,930

2,080

Aug.

2,060

2,010

1,960

1,930

1,900

1,860

1,820

1,890

1,970

1,920

1,860

1,810

1,750

1,850

1,990

1,910

1,800

1,890

1,970

1,750

1,780

1,770

1,480

1,160

862

665

533

444

383

344

325

Sept.

306

298

287

284

280

276

273,

273

273

276

276

276

269

259

259

255

255

262

266

269

273

276

280

280

280

280

280

280

280

280

Note.- No gage-height record Jan. 5-25, Jan. 30 to Feb. 23; discharge computed or basis of 

weather records and records for station at Anderson .Ranch. Jlam and other, nearby streams.

Day

1

?

?>

4

5

fi

Oct.

280

280

280

280

280

280

Nov.

387

387

383

379

375

367

Dec.

38

37

37

36

36

35

Day

7

ft

9

10

n

i?

Oct.

r 280

287

291

306

336

352

Nov.

121

57

50

46

43

41

Dec.

35

32

32

_

_

Day

n

14

15

16

17

1ft

Oct.

356

352

344

359

456

516

Nov.

r 39

39

40

41

40

39

Dec.

_

_

_

_

_

_

Day

19

?0

?n

?,?.

?7>

24

Oct.

498

464

444

427

415

403

Hov.

39

37

36

36

33

38

Dec.

-

-

-

-

-

-

Day

25

26

2V

26

29

30

31

Oct.

391

383

375

371

371

379

387

Hov.

37

38

38

37

35

37

-

Dec.

-

-

-

-

-

-

-

Monthly discharge, in second-feet, 1946-47

llonth

December . ..................................

Calendar year 1946 ......................

May

September . .................................

Water year 1946-47 ......................

December 1-9. ..............................

Secondfoot-days

12,513 

11,770 

13,761

440,824

1,280 

1,739 

2,897 

68,262 

77,11'4 

48,700 

49,230 

47,646 

8,261

343,173

11,223 

3,315 

318

Maximum

469 

469 

715

6,270

54

147 

3,040 

4,340 

2,420 

2,080 

2,060 

306

4,340

516 

387 

38

Minimum

309 

336 

49

-

55 

402 

516 

1,280 

1,200 

325 

255

_

280 

33 

32

Mean

404 

392 

444

1,208

41.3 

62.1 

93. 5_ 

2,275 

2,488 

1,623 

1,588 

1,537 

275

940

362 

110 

35.3

Runoff in 

aore-feet

24,820 

23,350 

- 27,290

874,300

2,540 

3,450 

5,750 

135,400 

153,000 

96,600 

97,650 

94,500 

16,390

680,700

22,260 

6,580 

631
BOISE RIVER BASIN 155

Lime Creek near Bennett, Idaho

Location.- Water-stage recorder, lat. 43°25', long. 115°16', in SW^NE^ sec. 16, T. IN., 

K. 10 K._j, 0.4 mile upstream from flow line of Anderson Ranch Reservoir, <T miles upstream from mouth, and 12 miles northeast of Bennett.

Drainage area.- 131 square miles.

Records available.- June 1945 to September 1947.

Extremes.- Maximum discharge during year, 302 second-feet May 4 (gage height, 3.88 feet); 

minimum, 13 second-feet Aug. 30 (gage height, 2.13 feet).

1945-47: Maximum discharge, 1,180 second-feet Apr. 19, 1946 (gage height, 6.11 

feet); minimum, 9 second-feet Aug. 25, 1945.

Remarks.- Records good except those for period of ice effect, which are fair. No diversion or regulation.

Rating tables, water year 1946-47, except period of ice effect

(gage height, in feet, and discharge, in second-feet)

fshlfting-control method used Dec. 14,

July 15 to Sept. 3o)

Oct. 1 to Dec. 14 Dec. 15 to Sept. 3O

2.3 28 2.0 12 2.9 9O 

2.6 47 2.1 16 3.2 142 

2.8 67 2*3 27 3.6 229 

3.0 97 2.5 43 3.9 307 

3.2 135 2.7 64

Discharge, in second-feet, water year October 1946 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.

41 

54 

36 

33 

32

32 

32 

32 

32 

32

31 

32 

31 

31

31

32 

32 

32

31 

32

36 

38 

44 

35 

34

33 

32 

32 

30 

32 

31

Nov.

32 

24 

30 

33 

36

37 

*37 

36 

31 

36

35 

30 

34 

36 S3

24 

38 

38 

51 

49

36 

41 

48 

44 

40

40 

40 

40 

40 

39

Dec.

38 

38 

37 

38 

39

52 

46 

43 

41 

40

41 

56 

74 

119 

100

61 

44 

58 

77 

55

53 

52 

43 

40 

48

tl 

32 

28 

*23 

23

Jan.

30

r 34

> 33

Month

Octo 

Nove 

Dece

Cs

Jami 

Febi 

Hare 

Apri 

Hay 

June 

Julj 

Augu 

Sept

Ws

mber ......................

lendar year 1946 

ary

h .........................

......... . ...... 

st ........................

ember .....................

ter year 1946-47 ..........

Feb.

33

*36 

41 

40 

40

41 

42 

44 

52 

49

53 

56 

80 

101 

77

65 

56 

44

Secondfoot-days

1,048 

1,108 

1,532

36,337

933 

1,280 

3,559 

5,313 

5,446 

1,986 

736 

468 

510

23,919

Mar.

44 

53 

50 

49

47

38 

48 

46 

46 

54

71 

63 

64 

89 

123

152 

183 

183 

187 

181

185 

179 

190 

146 

134

138 

134 

140 

150 

198 

194

Haxlmum

54 

51 

119

886

101 

198 

234 

291 

108 

39 

18 

19

291

Apr.

166 

166 

152 

138 

125

127

118 

113 

111 

114

113 

120 

150 

192 

222

227 

229 

234 

229 

229

229 

219 

207 

192 

181

187 

198 

210 

210 

205

Hay

205 

236 

270 

291 

280

262 

267 

270 

257 

224

210 

217 

187 

175 1621

154 

150 

144 

138 

134

132 

129 

121 

116 

111

104 

-104, 

104 

95 

93 

104

Minimum

30 

24 

23

21

38 

111 

93 

42 

17 

14 

14

14

June

98 

96 

92 

83 

79

79 

75 

90 

108 

83

79 

71 

66 

63 

62

60 

61 

58 

55 

55

54 

52 

51 

48 

46

44 

48 

45 

43 

42

Mean

33.8 

36.9 

49.4

99.6

30.1 

45.7 

115 

177 

176 

66.2 

23.7 

15.1 

17.0

65.5

1947

July

39 

38 

35 

34 

32

30 

30 

29 

28 

28

26 

25 

24 

23 

21

20 

20 

20 

20 ' 19

19 

18 

18 

18 

18

18 

18 

17 

17 

17 

17

Per 

square 

mile

0.258 

.282

.377

.760

.230 

.349 

.878 

1.35 

1.34 

.605 

.181 

.115 

.130

.500

Aug.

16 

15 

15 

16 

16

15

15 

14

15 

15

15 

15 

15 

15 

15

14

14 

14 

15 

16

15 

15 

18 

17 

16

15 

15 

14 

14 

14 

15

Sept.

15

14 

15 

14 

15

14 

15 

18 

18 

18

17 

17 

16 

16 

17

17 

17 

18 

18 

19

19 

18 

18

18 

18

18 

18 

18 

18 

18

Runoff

Inchras Ac re- feet

0.30 2,080 

.31 2,200 

.45 3,040

loTsx 72,090

.23 1,850 

.3<3 2,540 

1.01 7,060 

1.51 10,540 

1.53 10,800 

.53 3,940 

.21 1,460 

.13 928 

.14 1,010

6.77 47,450

* Winter discharge measurement made on this day.

Mote.- Stage-discharge relation affected by ice Dec. 29 to Feb.
156 BOISE RIVER BASIN

Fall Creek near Anderson Ranch Dam, Idaho

Location.- Water-stag^ recorder, lat. 43°26'00", long 115°23'10", in SE^- sec. 9, T. 1 

N., K. 9 E., Ij miles below Mill Creek and 6 miles northeast of Anderson Ranch Dam.

Drainage area.- 55.3 square miles.

Records available.- April 1945 to September 1947.

Extremes.- Maximum discharge during year, 324 second-feet May 3; maximum gage height 

recorded, 6.07 feet Jan: 5 (ice jam); minimum, 9.<5jsecond-feet Sept. 18 (gage height2.45 feet).

1945-47: Maximum discharge, 793 second-feet Apr. 17, 1946; maximum gage height, 

that of Jan. 5, 1947; minimum discharge, that of Sept. 18, 1947.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion or regulation.

ng tables, water year 1946-47, except per 

(gage height, height in feet, and discharge, in

Oct. 1 to Jan.

riods of ice e 

second-feet)

Feb. 13 to Sept. 30

2.5 14

2.7 20

2.9 30

3.2 56

3.5 89

3.9 143

2.5 

Z.I 

2.9 

3.1

11 3.4 

3.8 

4.2

143

221

316

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

23

34 

22

20

19

19

19

19

19

18

18

18

18

18

18

18

18

18

18

18

21

23

30

24

23

22

22

20

19

20

19

Nov.

20

19 

19

19

20

20

*2l

21

19

20

20

20

22

21

21

18

21

21

23

23

21

21 

25

23

22

23

24

24

25

24

-

Dec.

22

23 

22

22

24

28

26

25

24

24

28

57

70

132

101

68

50

38

42

42

38

36

34

32

33

3535^

30

25

*23

23

Jan.

I 23 r

25

21

27

1-

Month

October .......................

November ......................

December . ....................

Calendar year 1946 .........

January .......................

February ......................

March ... ..................

April .........................

May ...........................

June ..................... ....

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

' 2 5

*26

26

26

26

27

29

31

30

31

32

34

38

40

40

37

35

.

-

Secondfoot-days

635

640

1,212

31,477

761

2,461

5,076

5 951

2 >261

818

463

387

21,475

Mar.

34

34 

33

32

31

29

29

29

29

31

30

29

29

33

42

62

98

118

129

133

141

143

141

123

115

113

116

124

131

152

148

Maximum

34

25

132

680

40

152-Q

295

116

44

17

15

295

Apr.

136

129 

121

115

107

102

96

95

94

94

95

104

133

186

223

230

234

230

228

239

236

225

206

190

182

190

204

221

221

210

-

May

221

257 

290

295

283

276

285

285

271

230

206

200

188

174

167

165

163

157

157

157

157

156

148

147

145

141

138

131

123

118

120

Minimum

18

18

22

-

"

29

94

118

46

16

12

12

12

June

116

115 

106

96

91

91

84

96

116

101

94

82

80

74

71

68

68

65

64

61

59

57

54

52

51

49

54

51

49

46

-

Mean

20.5

SI. 3

39.1

86.2

24 . 5

n ft ' Q

79.4

169

Qn

75.4

26.4

14.9

12.9

58.8

July

44

42

40

37

36

34

33

32

32

31

29

29

28

25

24

24

23

23

23

E2

21

20

20

20

19

19

18

18

18

18

16

Per 

square 

mile

0.371

.385

.707

1.56

.443

523

l'.44

3.06

3.47

1.36

.477

'.233

1.06

Aug.

17

16 

16

16

16

16

16

15

15

15

16

16

15

15

15

15

15

17

12

15

15

15

16

15

15

14

14

14

12

12

12

Sept.

12

12

12

12

12

12

13

15

15

14

13

13

12

12

13

13

13

13

14

14

14

13

13

13

12

12

12

13

13

13

-

Runoff

Inches Acre-feet

0.43 1,260

.43 1,270

.82 2,400

21.19 62,440

.51 1,510

.54 1,610

1.66 4,880

3.41 10,070

4.00 11,800

1.52 4,480

.55 1,620

. 31 918

.26 768

14.44 42,590

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 17-19, Dec_. 29 to about Jan. 20. No gageheight record Jan. 7 to Feb. 12j discharge computed on basis of weather records and records for 

nearby streams.
BOISE RIVER BASIN 15 ' 

Little Camas Canal at heading, near Bennett, Idaho

Location.- Staff gage, lat. 43°21'30", long. 115°23', in sec. 9, T. 1 S., R. 9 E., 400 

feet downstream from Little Camas Reservoir, 4 miles northeast of Bennett, and 22 miles 

northeast of Mountain Home.

Records available.- June to November 1917, April 1924 to September 1947.

Extremes.- Maximum discharge observed during year, 63 second-feet Aug. 2; maximum gage 

height, 2.50 feet July 24, 25; no flow during long periods.

1917, 1924-47: Maximum discharge observed, 77 second-feet Apr. 27-30, May 1, 3, 9, 

1924; no flow during nonirrigation seasons.

Remarks.- Records fair. Gage read once daily. Canal diverts from Little Camas Reservoir 

tSouth Fork Boise River drainage) in sec. 9, T. 1 S., R. 9 E., and discharges into Long 

Tom Creek Basin, where water is stored in Long Tom Reservoir for irrigation of 5,000 

acres of land near Mountain Home. No diversion above station. Flow regulated by head 

gates at Little Camas Reservoir.

Cooperation.- Gage readings furnished by Mountain Home Irrigation District.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

?.

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

December. ..................................

Calendar year 1946 ......................

March. .....................................

Bay........................................

September. .................................

Water year 1946-47 ......................

Bar.

0

0

0

0

o

o

o

o

0

0

0

o

0

0

0

0

0

6

12

12

12

12

12

20

20

20

20

23

23

23

23

Apr.

23

23

23

23

23

23

23

23

23

23

23

23

23

25

25

25

25

25

25

25

9

0

0

0

8

25

25

26

32

32

-

Secondfoot-days

0

4,065

238

367

7,608

Bay

32

32

36

36

38

40

40

42

46

46

46

46

51

51

55

55

57

57

56

56

56

56

56

56

56

56

55

56

56

56

56

Maximum

0

51

55

63

June

55

55

55

55

56

55

55

55

55

55

55

54

55

55

54

54

54

54

55

54

55

55

55

54

55

56

54

55

54

55

-

Minimum

0

0

0

o

July

54

54

54

54

53

53

53

53

54

55

54

54

53

54

54

54

54

54

54

54

54

54

54

54

27

0

9

32

34

39

53

Aug.

58

63

60

59

58

59

58

58

54

54

54

54

54

52

54

54

54

54

54

54

54

54

54

53

53

53

54

54

54

54

54

Bean

o

11.1

12.2

20.8

Sept.

53

53

52

52

55

55

28

a!4

5

O

o

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0-

Runoff in 

acre-feet

o

8,070

728

15,090

a No gage-height record; discharge interpolated between gate changes.
158 BOISE RIVER BASIN 

Moore Creek near Arrowrock, Idaho

Location.- Staff gage, lat. 43°35', long. 115°59', in sec. 21, T. 3 N., R. 4 E., at

 bridge on Boise-Arrowrock highway, a quarter of a mile upstream from moutl- and 3 miles 

southwest of Arrowrock.

Drainage area.- 426 square miles.

Records available.- October 1914 to November 1915 (discharge measurements only), 

December 1915 to September 1947.

Average discharge.- 31 years (1916-47), 294 second-feet.

Extremes.- Maximum discharge observed during year, 1,120 second-feet Dec. 14 (gage height,

 3.80 feet); minimum observed, 27 second-feet Sept. 3, 5, 6, 7 (gage height, 0.46

1915-47: Maximum discharge, 6,610 second-Jeet Apr. 8, 1943 (gage height, 7.1 

feet, from high-water mark); minimum observed, 7.9 second-feet Aug. 13-15, 17, 18, 

1924.

Remarks.- Records good except those for Jan. 31 to Feb. 5 and those for periods of ice

 effect, which are fair. .Gage read once daily except Mar. 24 to May 31, wnen it was 

usually read twice daily. No large diversion above station.

Cooperation.- Gage readings furnished by Water District No. 12 A.

Discharge, In second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

-15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

53

195

139

104

75

68

65

75

71

71

124

59

65

65

66

64

66

68

68

68

82

93

128

130

116

120

112

94

89

82

85

Nov.

82

85

62

62

68

85

93

93

89

82

91

89

71

80

85

65

82

89

238

376

260

205

231

311

241

236

317

254

302

308

Dec.

274

246

215

205

188

215

225

215

205

192

181

668

834

1,120

1,050

780

436

393

393

*342

311

288

254

231

236

225

225

188

141

116

lie

Jan.

116

100

b80

b85

94

blOO

bllO

106

106

116

141

110

116

122

94

91

83

87

110

116

122

120

130

134

134

145

134

96

102

120

126

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

Mav ~* ........................... 

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

131

134

145

131

131

*131

128

122

124

145

142

190

534

496

454

419

426 -440

433

384

391

377

419

440

412

384

358

328

_

-

Secondtoo t-days

2,760

4,732

10,702

163,652

3,446

8,349

18,769

19,994

19>379

9,239

2,327

1,032

1,213

101,942

Mar.

316

340

322

340

340

304

304

292

292

412

582

510

468

510

5T4

680

802

868

938

926

926

890

974

840

755

725

671

658

653

700

fl 57

Maximum

;L95

376

1,120

3,920

145

534

974

802

926

558

129

44

81

1,120

Apr.

S02

791

760

715

658

640

599

582

566

550

518

506

526

594

695

740

760

775

760

780

755

720

685

630

617

612

626

666

690

676

-

May

680

725

868

868

846

840

835

846

926

835

760

685

671

622

590

566

558

542

530

526

522

503

486

472

468

454

450

444

433

412

4.16

Minimum

53

62

110

25

80

122

292

506

412

151

46

28

27

27

June

412

412

398

392

358

364

334

370

558

503

475

405

358

340

316

298

304

286

256

244

256

226

198

187

178

168

160

168

164

151

~

Mean

89,0

158

345

448

111

298

605

666

6 25

308

75.1

33.3

40.4

279

July

129

114

117

117

108

100

98

93

88

77

84

81

79

77

73

68

66

62

62

58

58

54

54

54

52

50

50

48

46

64

46

Per 

square 

mile

0.209

.371

.810

1.05

.261

.700

1.42

1.56

1.47

. 723

!l76

.078

.095

.655

Aug.

44

tl

59

57

37

35

55

54

52

32

32

52

32

54

32

32

52

31

31

31

32

32

31

34

35

34

32

31

29

29

98

Sept.

28

28

27

28

27

27

27

37

37

42

39

37

41

39

37

39

46

48

81

56

50

46

44

42

42

42

46

- 44

44

42

Runoff

Inches

0.24

.41

.93

14.28

.30

.73

1.64

l.*5

1 . 69

. 81 

.20

.09

.11

8.90

Acre-feet

5,470

9.390

21,230

324,600

6,840

16,560

37,230

39,660

 J38.440

. 18y5iO

4,620

2,050

2,410

202,200

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
BOISE RIVER BASIN 

New York Canal near Barber, Idaho

159

Location.- Water-stage recorder at trapezoidal concrete-lined canal section, lat. 43°33' 

long. 116°07', in SE^NE^- sec. 32, T. 3 N., R. 3 E., 1 mile south of Barber and if 

miles downstream from head gates at Boise River diversion dam and power plant.

Records available.- February 1939 to September 1947.

Extremes.- Maximum discharge during year, 2,930 second-feet May 10 (gage height, 9.16 

reetJ; no flow for long periods during year.

1939-47: Maximum discharge, 2,980 second-feet May 10, 1945; maximum gsge height. 

9.34 feet Tune 10, 1945; no flow for long periods each year.

Remarks.- Records excellent. Canal diverts from Boise River in sec. 3, T. 2 N., R, 3 

E., a miles below Moore Creek, for irrigation of 166,396 acres included ir Boise 

project of Bureau of Reclamation and as a feeder canal for Lake Lowell near Caldwell 

(see following page). Flow regulated by head gates.

Cooperation.- Five discharge measurements furnished by Board of Control for Eoise 

project.

Discharge, in second-feet, water year October 194B to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30.

31

Oct.

I,"o80

998

837

7B2

B8O

613

572

491

4B2

464

47B

47 B

474

476

138

0

O

0

O

0

0

0

O

O

0

0

O

0

0

0

0

Nov.

0

0

0

O

0

0

74

B18

1.0B5

1,130

,120

,110

,100

,100

,100

,100

,090

,110

,140

,110

,090

,100

,140

,140

,120

,120

,140

1,150

1,140

1,140

-

Dec.

1,120

1,130

1,130

,120

,130

,110

,130

,O7O

70

0

O

0

O

O

0

O

0

O

0

O

O

0

0

O

O

0

0

0

O

O

0

Jan. Feb.

0

0

0

O

O

0

0

0

0

0

o

0

0

0

0

405

518

908

1,090

1,050

1,040

1,050

1,120

1,160

1,140

1,110

1,100

1,060

_

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 194B ......................

January ....................................

February. ..................................

March. .....................'................

April ......................................

Bay. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-4? ......................

Mar.

1,050

1,060

1,070

1,090

1,080

1,040

1,100

1,220

1,220

1,230

1,210

1,160

1,170

1,210'

1,210

1,290

1,360

1,380

1,380

1,O6O

O

O

0

0

0

0

0

365

988

995

724

Apr.

510

744

981

981

1,040

1,180

1,230

1,280

1,290

1,290

1,400

1,490

1,590

1,800

2,020

2,180

2,380

2,560

2,650

2,720

2,740

2,740

2,720

2,750

2,760

2,770

2,800

2,800

2,790

2,820

Secondfoot-days

8,999

25,247

9,010

446,159

0

12,751

26,662

88 ,720

76,640

66,150

58,080 

38,735

470,000

May

2,830

2,840

2,86O

2,870

2,850

2,870

2,860

2,870

2,880

2,880

2,900

2,880

2,850

2,860

2,860

2,860

2,860

2,860

2,860

2,87O

2,860

2,850

2,860

2,86O

2,860

2,860

2,850

2,860

2,850

2,87O

2,870

Maximum

1,080

l|l30

2,900

0

1,160

1,380

Z, 900

2, '330

2,020 

1,990

2,900

June

2,870

2,850

2,800

2,720

2,620

2,540

2,500

2,390

2,140

2,220

2,230

2,200

2,25O

2,500

2,650

2,740

2,820

2,810

2,800

2,810

2,800

2,790

2,740

2,500

2,440

2,430

2,380

2,370

2,370

2,360

-

Minimum

C

c

c

0

0

0

51C

2,830

2 14C

1 83C

1^560

0

0

July

2,260

2,240

2,220

2,220

2,240

2,260

2,260

2,280

2,320

2,330

2,320

2,300

2,260

2,220

2,180

2,170

2,210

2,210

2,180

2,140

2,120

2,060

2,060

2,OEO

1,960

1,880

1,850

1,860

1,850

1,830

1,840

Aug.

1,860

1,880

1,890

1,900

1,930

1,970

2,000

1,960

2,OOO

2.OOO

2,000

2,000

2,000

2,010

2.O2O

2,020

 2,000

1,980

1,960

1,960

1,910

1,860

1,750

1,690

1,690

1,690

1,690

1,660

1,640

1,600

1,560

Mean

290

842

291

1.22E

0

455

860

1,967

2 55C

2,'l34

1,874

1,291

1,288

Sept.

1,510

1,520

1,580

1,630

1,720

1,730

1,710

1,610

1,460

788

0

0

0

O

0

457

1,720

1,690

1,960

1,990

1,960

1,920

1,920

1,370

1,330

1,390

1,460

1,440

1,430

1,440

-

Runoff in 

acre-feet

17,850

50,080

17,870

885, OOO

O

25 29O

52 ,880

117,000

176,000

152,000

131,200

115,200

76,830

932,200
160 BOISE RIVER BASIN

Lake Lowell near Caldwell, Idaho

Location.- Staff gages attached to outlet structures at each end of reservoir. One gage 

is at lower embankment, lat. 43 C 35', long. 116°45', in SEj sec. 19, T. 3 F., R. 3 W., 

5 miles south and 2 miles west of Caldwell; the other is at upper embankment, 

lat. 43°34', long. 116°39', in NW-£ sec. 36, T. 3 N., R. 3 W., 1 mile soutt and 4 

miles west of Nampa. Datum of gage is 2,600.5 feet above mean sea level (surveys of 

Bureau of Rec.lamation).

Records available.- October 1917 to September 1947.

Extremes.- Maximum contents observed during year, 176,500 acre-feet Apr. 16 (gage height, 

29.93 feet); minimum observed, 16.150 acre-feet Oct. 18.

1917-47: Maximum contents observed. 178,900 acre-feet Apr. 27, 28, 1922, Apr. 24, 

1932 (gage height, 30.18 feet); minimum observed, 5,390 acre-feet Oct. 22, 1924.

Remarks.- Reservoir is formed by two earth embankments; dams were completed and storage 

began in 1908. Capacity. 177,150 acre-feet between gage heights 0.0 foot (sill of 

outlet gates) and 30.0 feet (maximum operation level). Dead storage, about 13,000 

acre-feet. Below gage height 12.0 feet reservoir divides into two pools. In addition 

to water received from local drainage, reservoir receives water from Boise River 

through New York Canal of Boise project. Water is used for irrigation of lower project 

lands. Figures given herein represent usable contents. Gages read once daily.

Cooperation.- Gage readings and capacity table furnished by Board of Control for Boise 

project.

itents, in acre-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22,760

22,270

21,830

21,300

20,820

20,480

20,040

19,760

19,460

18,980

18,590

18,140

17,810

17,340

16,950

16,560

16,360

16,150

16,750

16,890

17,070

17,570

17,860

18,160

18,530

18,830

19,130

19,510

19,740

19,970

20,200

Nov.

20 , 510

20,820

21,050

21,360

21,520

21,680

21,920

22 ,080

23,170

25,650

27 ,91O

30,240

32,620

35,020

37,49O

39,840

42,08O

44,340

46,690

49,260

51,890

54,060

56,100

58,46O

60,810

63,130

65,610

68,060

70,420

73,010

-

Dec.

75,240

77,300

79,440

82,020

84.O8O

85,680

87 , 560

89,680

91,740

92,460

92,460

92,460

92,460

92,460

92,390

92,390

92,390

92,320

92,320

92,320

9E.24O

92,240

92,240

92,170

92,170

92,03O

92,030

92,030

92,030

92,030

91,960

Jan.

91,960

91,960

91,530

91,530

91,530

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,390

91,460

91,740

91,740

91,740

91,890

91,890

91,890

91,890'

91,960

Feb.

91,960

91,960

91,960

91,960

91,960

91,960

91,960

91,960

91,960

92,170

92,170

92,170

92,170

92,170

92,170

92,170

93,110

94,120

93,280

97,180

99,380

101,300

103,300

105,200

107,000

108,800

111,200

113,300

-

-

-

Mar.

115,200

117,300

119,000

121.EOO

123,100

124,900

126,900

128,800

131,100

133,300

135,600

137,700

139,900

141,800

143,900

146,000

148,100

150,100

152,100

154,200

156,300

156,800

156,700

156,500

156,400

155,900

155,600

155,100

154,900

155,900

158,200'

Apr.

159,600

160,300

161,200

162,800

164,200

166,000

167,100

168,600

170,303

171,80J

172 ,70O

173,600

174,600

175,600

176,200

176,500

176, 2OO

175,800

174,800

174,300

174,200

173,900

173,600

173,300

172,800

172,300

171,700

171,100

170,500

A69.600

-

May

168,000

167,000

166,000

165,100

163,900

162,900

161,300

160,200

158,700

157 ,700

156,600

156,600

156,200

155,800

156,100

156,400

156,800

156,900

157,100

156,800

156,000

155,100

154,000

153,000

152,000

151,200

150,200

149,400

148,700

148,000

147,700

June

148,200

148,900

150,100

151,900

153,300

155,000

156,800

158,700

161,000

162,700

164,400

166,700

168,500

170,800

172,900

174,800

175,400

176,200

176,300

176,103

174,400

173,400

172,600

171,300

169,800

167,200

164,700

162,000

159,400

157 ,000

-

July

154,800

152,500

150,200

147,900

145,700

143,400

141,200

139,000

136,700

134,200

131,900

129,900

127,800

125,800

123,600

121,400

119,200

117,300

115,100

113,200

111,100

109,300

L07 ,400

105, 603

103,600

1.01,700

99,830

98,130

96,300

94,330

92,530

Aug.

90,670

88 , 900

86,790

84,770

82,710

80,460

78,500

76,370

74,190

71,650

69.46O

67,490

65,480

63,500

61,660

59,720

57,980

56,330

54 , 580

52,630

50,760

48,980

47,610

45,940

44,660

i3,600

42,310

40,940

39,470

37,890.

36,550

Sept.

35,110

33,680

32,530

31,1-50

29,920

28,580

27,390

26,300

25,460

24,620

23,990

23,670

23,170

22,630

21,930

21,250

20,790

21,590

22,760

23,900

25,030

27,150

28,250

29,570

31,080

32,770

34,500

36,460

38,410

40,420

-

Monthly gage height and contents, water year October 1946 to September 1947

Dec.

Cal

Wat

sn

si .

ende

31

er 3

Date

lower)............

ir year 1946 .......

lower

rear i946-47 . ......

Qage 

(fe

19

height 

et)

.85

.

.

Contents 

(acre-feet)

23 ' 350

73,010

91,960

-

-

Change in contents 

during month 

(acre-feet)

-3,150

+ 5E.810

+ 18,950

+360

00

+44,900

+11,400

-21,900

+17,070
MAEHEUR RIVER BASIN 161

Malheur River near Drewsey, Oreg.

Location.- Water-stage recorder, lat. 43°47', long. 118°20', in SE^ sec. 31, T. 20 S., R.

 36 hi., 300 feet downstream from crossing of Burns-Ontario highway, half a mile downstream from Cottonwood Creek, and 3 miles southeast of Drewsey. Datum of gage is 

3,479.29 feet above mean sea level, datum of 1929.

Drainage area.- 982 square miles.

Records available.- June to December 1920, April to September 1921, June 1939 to September

 1947. April to September 1923 and June 1926 to June 1939 at site 7 miles downstream.

Records practically equivalent.

Average discharge.- 21 years (1926-47), 167 second-feet. 

Kxtremes.- Maximum discharge during year, 4,210 second-feet Apr. 13 (gage height, 11.41

 feet), from rating curve extended above 2,100 second-feet; minimum, 4.1 second-feet

Sept. 4-8 (gage height, 2.44 feet).

1920-21, 1923, 1926-47: Maximum discharge, 4,290 second-feet Feb. 27, 1940 (gage

height, 11.35 feet), from rating curve extended above 2,100 second-feet; no flow at

times.

Revisions.- The maximum discharge for the water year 1927 has been revised to 2,300

second-feet ^'eb. 21, 1927 (gage height, 6.46 feet). 

Remarks.- Records fair except those for periods of ice effect or no gage-height record,

which are poor. Several small diversions above station for irrigation. 

Revisions.- Revised figures of discharge, in second-feet, for some days in the water year

 superseding those published in Water-Supply Paper 653, are given herewith:

Month

April. ........................

Water year 1926-27.. ........

Maximum

1.120

Minimum

405

Mean

677

Runoff in 

acre-feet

40,300

(figures not changed)

Discharge, in second feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

19

21

26

26

27

30

48

47

52

53

51

49

49

45

51

52

53

57

57

51

51

52

56

58

60

a58

a55

52

45

49

54

Nov.

48

52

45

43

51

58

6E

57

49

54

62

57

46

b42

b45

b50

54

67

72

88

76

70

72

81

79

78

103

123

121

1Z3

-

Dec.

90

86

88

90

108

110

100

90

86

81

81

90

144

181

229

185

> allS

Jan.

> 325

b56

 S90

Feb.

> b!45

91

96

1,190

3,120

822

427

441

788

637

362

264

235

225

216

230

211

180

146

120

-

-

-

Month

October. ...............................

Novembe r ............................. ....

December. ..................................

Calendar year 1946 ......................

Januarv ........ . . ......... ....... . . .

Febr 

Marc

uary ...................................

h. ..... ... ...... . . ... ...

April. ................ ....................

uoy. UftV .......................................

June .......................................

July. ......................................

August .....................................

September ..... .................. .........

Water year 1946-47 ......................

Mar.

124

122

128

124

122

110

102

112

112

144

347

187

155

155

180

232

271

302

341

a375

a38O

413

449

424

359

357

362

364

372

389

405

Apr.

405

380

354

331

292

295

280

268

283

268

259

252

256

283

300

328

344

424

515

471

429

370

328

295

259

249

242

240

235

240

-

Secondfoot-days

1 454

2^027

3,564

79,282.8

1,911

11,106 

7,919

9,475

4,732

2,179

388.6

194.0

200.7

45,150.3

May

237

228

228

254

273

264

273

280

288

261

237

211

185

160

139

114

101

92

90

88

85

80

74

72

67

62

58

58

60

55

58

Maximum

60

123

229

1,540

.

3,120 

449

515

288

150

23

7.8

17

3,120

June

86

110

128

104

92

116

101

120

139

150

112

93

78

70

62

55

66

70

59

52

48

44

40

36

28

24

24

24

24

24

-

Minimum

19

42

7.1

_

102

235

55

24

5.4

5.1

4.1

4.1

July

23

21

20

18

17

17

15

15

15

14

13

13

13

12

13

13

13

13

11

11

11

11

10

8.9

7.8

7.3

7.3

7.3

6.8

5.8

5.4

Aug.

5.1

5.1

5.4

5.1

5-4

5.4

5.8

5.8

5.4

5.8

7.8

7.3

7.3

6.8

6.8

6.8

6.8

6.5

6.1

6.1

6.1

6.1

6.5

7.3

6.8

7.3

6.8

6.1

6.8

5.8

5.8

Mean

46.9

67.6

115

217

61.6

397 

255

316

153

72.6

12.5

6.26

6.69

124

Sept.

5.8

5.8

4.8

4.4

4.1

4.1

4.1

4.1

4.4

5.1

5.1

4.8

4.8

4.8

4.8

5.4

6.1

6.6

7.3

6.5

5.8

6.5

6.8

7.3

9.4

11

10

11

13

17

~

Runoff in 

acre-feet

2,880

4,020

7,070

157,200

3,790

22,030 

15,710

18,790

9,390

4,320

771

385

398

89,550

a No gage-height record; discharge computed on basis of records for Malheur River below Warmsprings 

Reservoir, North Pork Malheur River above Agency Valley Reservoir, near Beulah, and Warmsprings Reservoir outflow.

b Stage-discharge relation affected by ice.
162 MALHEOR RIVER BASIN

Malheur River below Warmsprings Reservoir, near Riverside, Oreg.

Location.- Hook gage, lat. 43°34', long. 118°12", in SW-^ sec. 17, T. 23 S., R. 37 E., 1

mile downstream from Warmsprings Dam, 3 miles upstream from South Fork, and 4 miles

northwest of Riverside. 

Drainage area.- 1,100 square miles. 

Records available.- December 1914 to July 1917, March 1919 to September 1947. January

lyue to March 1907 and December 1908 to September 1910 at site at Riversid?, 4 miles

downstream, in reports of Geological Survey. October 1910 to November 1914 at site

at Riverside, in reports of State engineer.

Average discharge.- 35 years (1909-16, 1919-47), 173 second-feet. 

Extremes.- Maximum discharge observed during year, 695 second-feet July 2-11 (gage height,

b.32 reet); minimum, about 1 second-foot (estimate by Bureau of Reclamation] Oct. 12

to Apr. 7.

1906-7, 1908-17, 1919-47; Maximum discharge observed, 5,490 second-feet Mar. 2,

1910; no flow at times. 

Remarks.- Records goo3 above 50 second-feet and poor below. Gage read once daily. Flow

completely regulated since November 1919 by Warmsprings Reservoir (see.p. 164).

Several small diversions above station for irrigation.

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, In second-feet)

2.8 1.3 3.4 22 4.4 243 

2.9 3.0 3.6 39 4.7 386 

3.0 5.3 3.8 68 5.O 535 

3.1 8.5 4.0 110 5.3 685 

3.2 12 4.2 171

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

175 

168 

164 

154 

154

154 

138 

103 

78 

78

78 

33

1

1

1

1 

1 

1 

1

1

1 

1 

1 

1

1 

1 

1 

1 

1 

1

Nov.

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

Dec.

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

Jan.

1 

1 

1

1

1 

1 

1 

1

1

1

1

1

1

I

1

1

1 

1 

1 

1

1 

1 

1 

1 

1 

l

Feb.

1 

1 

1

1 

1 

1 

1 

1

1 

1

1

1 

1

1 

1

1 

1 

1 

1

1

1 

1 

1

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

lendar year 1946 

ary

1. .....................................

St. ....................................

ember. .................................

ter year 1946-47 ......................

Mar.

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 

al

Apr.

1 

1 

1

1

64 

110 

110 

110

110 

110 

135 

154 

224

333 

450 

550 

550 

435

329 

329 

329 

329 

329

329 

352 

386 

386 

401

Secondfoot days

1,496 

30 

31

68,OO8

31 

28 

31 

6,950 

12,499 

10,030 

16,922 

16,243 

11,679

75,970

May

425 

435 

435 

455 

465

465 

465 

480 

480 

465

465 

440 

386 

315

261

261 

320 

372 

372 

381

396 

396 

396 

396 

396

396 

396 

396 

396 

396 

396

Maximum

175 

1

1

862

1 

1 

1 

550 

480 

675 

695 

635 

565

695

June

396 

396 

324 

193 

154

154 

154 

154 

154 

154

110 

87 

87 

62 

40

40 

96 

310 

415 

465

495 

530 

575

615 

635

635 

635 

635 

655 

675

Minimum

1 

1

1

0

1 

1 

1 

1 

261 

40 

329 

329 

220

1

July

675 

680 

695 

695 

695

695 

695 

695 

695 

695

685 

670 

670 

670 

625

545

490 

475 

475 

470

450

430 

420, 

410 

410

401 

376 

348 

329 

329 

329

Aug.

329 

329 

329 

329 

329

343 

357 

357 

376 

510

570 

570 

570 

585 

595

595 

590 

600 

635 

625

625 

625 

625 

625 

630

620 

610 

610 

600 

575 

575

Sept.

565 

545 

520 

495 

490

495 

495 

48 O 

455 

435

425 

425 

415 

406 

401

381 

372 

367 

343 

324

324 

334 

324

310 

^06

288 

261 

248 

240 

220

M__._ Runoff in Mefn acre-feet

48.3 2,970 

1.0 60

1.0 61

186 134,900

1.0 61 

1.0 56 

1.0 61 

232 13,790 

403 24,790 

334 19,890 

546 33,560 

524 32,220 

399 23,160

208 150,700

a No gage-height record; discharge Interpolated.
MALHEDR RIVER BASIN 163

Malheur River near Hope, Oreg.

Location.- Water-stage recorder, lat. 43°57', long. 117°29', In SW£ sec. 5, T. 19 S., R. 

43 E., half a mile upstream from Intake of Vines Canal and 6| miles west of Hope.

Drainage area.- 3,030 square miles.

Kecords available.- May 1919 to September 1947 (Incomplete prior to October 1922).

Average discharger- 24 years (1922-25, 1926-47), 219 second-feet.

Extremes.- Maximum discharge during year, 2,970 second-feet Feb. 13 (gage height, 4.91 

reet); minimum, 28 second-feet Apr. 17.

1919-47: Maximum discharge, 8,100 second-feet Feb. 5, 1925 (gage height, 8.1 feet), 

from rating curve extended above 3,000 second-feet; minimum, 3.5 second-feet Sept. 2, 

1919 (gage height, 0.02 foot).

The two greatest floods known occurred in March 1894 and March 1910.

Remarks - Records good except those for periods of Ice effect or no gage-flight record, 

which are poor. Vale-Oregon Canal diverts at Namorf; no other large diversions above 

station, but many small ones. Flow regulated by Warmsprings and Agency Valley Reservoirs (see following page).

Hating tables, water year 1946-47, except periods of Ice effect

(gage height, In feet, and discharge, in second-feet)

(Shifting-control method used Oct. 1-Nov. 23)

Oct. 1 to Feb. 13

0.8 40 1.6 202 3.0 990

.9 51 1.8 274 3.5 1,430

1.0 64 2.0 356 4.0 1,930

1.2 96 2.3 510

1.4 142 2.6 690

Feb. 14 to Sept. 30

0.6 24 1.2 93

.7 31 1.4 138

.8 40 1.6 198

.9 50 1.8 272

1.0 62 2.0 356

Note.- Same as prvcedlng table above 2.O

feet.

Discharge, in second- feet, water year October 1946 to September 194?

Day

1

2

3

4

5

6

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Oct.

79

78

79

76

74

72

76

78

74

67

60

59

59

72

79

72

64

60

63

60

59

58

54

59

58

60

56

55

55 

56

56

Nov.

58

55

55

54

54

56

56

56

56

58

60

60

59

59

58

56

54

52

61

66

66

68

67

64

60

56

62

66

68 

70

Dec.

68

64

58

58

60

62

66

68

66

66

64

*63

61

60

59

58

)-

58

60

I 60

'

Jan.

70

Feb.

 100

93

366

1,850

648

313

237

570

,301

216

166

136

119

104

95

91

86

81

*76

-

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January- ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September . .................................

Rater year 1946-47 ......................

Mar.

72

72

69

68

65

63

63

63

63

63

65

66

66

75

73

69

68

66

65

65

65

65

65

63

63

63

62

62

62 

61

60

Apr.

Secondfoot-days

2,027

1,790

1,854

79,313

2,170

6,548

2,030

2,840

6 , 888

3,631

7,309

5,071

3,997

46,155

60

65

62

41

39

41

40

39

40

51

48

46

43

36

35

38

34

68

146

146

144

141

133

133

155

188

202

212

226 

188

-

May

202

205

230

222

237

249

252

241

260

280

276

280

288

252

219

169

182

192

182

188

195

202

202

202

198

198

222

233

226

202

202

June

192

192

205

166

104

88

75

73

69

68

62

58

54

47

45

45

44

37

106

141

149

160

169

158

166

163

182

192

205 

216

-

Maximum Minimum

79 54

70 52

68

1,820

1,850

75 60

226 34

288 169

216 37

326 146

195 75

1,850 34

July

241

237

245

260

264

256

260

276

268

276

284

292

305

305

305

326

264

230

208

205

202

195

198

195

182

198

192

169

179 

146

146

Aug.

Mean

65.4

59.7

59.8

217

70.0 !

234

65.5

94.7

222

121

236

164

133

126

144

144

149

144

146

149

149

152

141

138

188

169

160

166

158

152

149

152

158

176

176

176

185

185

185

185

179

176

176 

182

182

Sept.

192

195

185

172

160

176

179

188

179

163

160

144

144

136

128

128

116

110

104

108

99

101

101

106

104

97

88

83

76 

75

-

Runoff in 

acre- feet

4,020

3,550

3,680

157,300

4,300

12,990

4,030

5,630

13,660

7,200

14,500

10,060

7,930

91,550

* Winter discharge measurement made on this.day.

Note.- No gage-height record Nov. 24 to Dec] 11, Jan. 3-9, 14-24; discharge computed on basis of 

unpublished records for Malheur River near Namorf. Stage-discharge relation affected by ice Dec. 17- 

25, Dec. 28 to Jan. 2, Jan. 1O-13, Jan. 25 to Feb. 1O.
1M MALHEUR RIVER BASIN

Reservoirs in Malheur River Basin, Oreg.

Warmsprings Reservoir.- Tape gage, lat. 43°35', long. 118°12'. in SE£ sec. 8, T. 23 S., R. 

av K., at dam on Malheur River, 4 miles upstream from South Fork and 4 miles northwest 

of Riverside. Datum of gage is 3,327 feet above mean sea level (surveys of Bureau of 

Reclamation); gage readings have been reduced to elevations above mean sea level. Drainage area, 1,100 square miles. Records available, January 1920 to September 1947. Maximum contents observed during year, 145,300 acre-feet Apr. 17 (elevation, 3,395.45 feet); 

minimum observed, 11,400 acre-feet Sept. 30 (elevation, 3,345.95 feet). Maximum contents observed during period 1920-47, 196,000 acre-feet Apr. 7, 1942 (elevation, 

3,407.08 feet); no contents Sept. 18 to Nov. 1, 1929, Aug. 26 to sometime in November 

1935.

Reservoir is formed by concrete-arch dam; capacity, 191,000 acre-feet between elevations 3,327 feet (bottom of outlet tunnel) and 3,406 feet (top of 5-foot flashboards). 

Dead storage, 1,400 acre-feet below elevation 3,327 feet, not included in records presented. Records given herein represent contents above elevation 3,327 feet. Storage 

began in 1919. In 1926 a half interest in reservoir was purchased by the Federal Government for Vale project of Bureau of Reclamation. Water used to irrigate lands on both 

sides of river between Namorf and Ontario. Once-daily gage readings and data for computing capacity table furnishpd by Bureau of Reclamation.

Agency Valley Reservoir.- Pressure gage with mercury column, lat. 43°55', long. 118°09', 

in sw-jr sec. it,, T. 19 S., R. 37 E., at dam on North Fork Malheur River, a quarter of a 

mile northwest of Beulah. Gage readings are elevations above mean sea level by original 

surveys of Bureau of Reclamation, or 7.72 feet less than elevations above mean sea level, 

datum of 195>9. Drainage area, 430 square miles. Records available, December 1935 to 

September 1947. Maximum contents observed during year, 60,020 acre-feet Apr. 20 (elevation, 3,340.05 feet); minimum observed, 22,030 acre-feet Oct. 7 (elevation, 3,314.83 

feet). Maximum contents during period 1935-47, 62,770 acre-feet May 3, 1941 (elevation, 

3,341.50 feet); minimum observed since full capacity was attained on Apr. 9, 1938, 

18,060 acre-feet Feb. 19, 20, 1943 (elevation, 3,311.11 feet).

Reservoir is formed by earth-fill rock-faced dam; storage began in Deceirber 1935. 

Capacity, 59,920 acre-feet between elevations 3,263.21 feet (bottom of outlet tunnel) 

and 3,340 feet (top of 17-foot spillway gates); with gates lowered the capacity is 

32,220 acre-feet. No dead storage. Water is used for irrigation of lands below Juntura, 

on Vale project of Bureau of Reclamation. Capacity table and daily gage readings furnished by Bureau of Reclamation.

Other reservoirs.- There are several other reservoirs in the Malheur River Basin, all with 

less tnan a,5UO acre-feet capacity except Willow Creek No. 3 Reservoir near Malheur, 

which has a capacity of 49,000 acre-feet.

Monthly elevation and contents, water year October 1946 to September 191-7

Date

Sept. 30. .................

Calendar year 1946..... 

Jan. 31. .................

Sept. 30.. ................

Water year 1946-47.....

Warmsprings Reservoir

Elevation 

(feet)t

3,377.35 

3,378.85 

3,381.05

-

3,382.14 

3,389.00 

3,393.55 

3,394.99 

3,390.43

3,374.03 

3,360.31 

3,345.95

-

Contents 

(acrefeet)

a82,60O 

82,080 

86,820 

93,860

-

97,460 

120,800 

137,700 

143,500 

126,000 

a!09,200 

71,890 

36,010 

11,400

-

Change in 

contents 

during month 

(acre-feet)

-520 

+4,740 

+7.04O

+21,160

+3,600 

+23,340 

+16,900 

+5,800 

-17,500 

-16,800

-35,880 

-24,610

-71,200

Agency Valley Reservoir

Elevation 

(feet)*

3,316.61 

3,219.82 

3,322.86

-

3,325.15 

3,331.15 

3,336.05 

3,338.31 

3,331.15 

3,330.37 

3,320.80 

3,316.48 

3,316.20

-

Contents 

(acrefeet)

a22,250 

24,100 

28,020 

32.03C

-

35,24C 

44.36C 

52.67C 

56.76C 

44.36C 

43.12C 

29.28C 

23,960 

23,620

-

Change In 

contents 

during month 

(acre-feet)

+1,850 

+3,920 

+4,010

-3,170

+3,210 

+9,120 

+8,310 

+4,090 

-12,400 

-1,240 

-13,840 

-5,320 

-340

+1,370

t Gage reading observed about 10 a.m.

* Gage reading observed about 9 a.m.

a No gage-height record; contents interpolated.
MALHEUR RIVER BASIN 165

North Pork Malheur River above Agency Valley Reservoir, near Beulah, Oreg.

Location.- Water-stage recorder, lat. 43°58', long. 118°11', in sec. 33, T. 18 S., R. 

37 K., at M. W. Scott's ranch, 3 miles upstream from Warm Springs Creek and 4 miles 

northwest of Agency Valley Dam and Beulah.

Drainage area.- 355 square miles.

Records available.- Janaury to September 1914, June 1936 to September 1947.

Average discharge.- 11 years, 123 second-feet.

Extremes.- Maximum discharge during year, 1,010 second-feet Feb. 12 (gage height, 4.35 

feet); minimum, IV second-feet Dec. 18 (gage height, 0.18 foot).

1914, 1936-47: Maximum discharge recorded, that of Feb. 12, 1947; maximum gage 

height, 4.60 feet Mar. 26, 1940; minimum discharge recorded, 15 second-feet Jan. 4, 

1944 (corrected), but may have been less at times during periods of ice effect.

Remarks.- Records good except those for periods of ice effect, which are poor. A few 

diversions above station for irrigation.

Rating tables, water year 1946-47, except periods of ice effect 

(gage height. In feet, and discharge, in second-feet)

Oct. 1 to Feb. 

0.4 30

Feb. 12 to Sept. 3o

1.0 

1.2

71

102

137

0.6 

.8 

1.0 

1.2 

1.5

35

56

85

117

172

1.8 

2.2 

2.6 

3.0

238

332

435

555

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

49

50

51

52

55

55

57

58

56

54

51

51

51

52

52

51

54

55

54

55

67

66

68

61

59

62

55

b45

b50

58

46

Nov.

b52

42

b40

b45

b52

b60

58

b45

b40

b58

56

42

b40

b40

U42

44

b55

64

91

74

62

62

74

68

64

67

91

94

94

b62

-

Deo.

b60

b64

b65

74

78

72

67

67

62

64

67

86

100

116

112

89

37

40

92

92

88

78

64

68

76

76

77

57

51

34

b35

Jan.

b38

42

42

> b55

*b56

> b65

Feb.

> b85

68

526

344

166

136

288

211

126

104

93

98

101

106

114

98

96

80

84

-

_

-

Month

October. ...................................

November. ........................ .........

December ...................................

Calendar year 1946 ......................

January. .................................. .

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

80

96

88

90

85

73

88

79

79

124

127

98

99

112

120

134

1*8

158

176

189

191

202

197

170

160

158

156

150

164

180

176

Apr.

170

166

166

154

147

139

132

134

134

132

138

139

148

168

204

229

275

337

291

279

252

231

220

211

204

200

204

211

215

222

-

Seoond 

foot-days

1,700

1,778

2,208

51,906

1 833

3*689

4^147

5,852

5,571

2,712

1,513

1 239

1^256

33,498

May

211

217

238

263

275

277

282

282

277

252

224

208

189

174

166

158

152

148

143

138

132

131

127

120

117

114

114

114

107

107

114

Maximum

68

94

116

822

526

202

337

129

CODC

43

46

526

June

107

129

129

122

109

112

104

119

119

107

103

95

90

88

85

87

98

85

79

76

74

67

66

67

66

64

66

69

66

64

-

Minimum

45

40

34

_

73

132

107

64

42

38

39

-

July

62

59

57

56

55

54

52

51

51

51

51

51

50

52

51

49

48

48

46

45

42

43

42

43

43

43

43

45

44

43

43

Aug.

43

42

41

41

41

40

40

40

40

40

41

41

40

40

40

39

39

38

38

39

41

40

40

39

39

39

39

39

40

40

40

Mean

54.8

59.3

71.2

142

1

1

1

1

59.1

32

34

95

80

90.4

48.8

40.0

91.8

Sept.

40

40

41

40

39

40

41

44

44

44

43

41

41

40

40

41

43

43

43

43

42

41

40

41

42

42

41

45

46

45

-

Runoff in 

ao re feet

3,370

3,530

4,380

103,000

3,640

7,320

8,230

11,610

11,050

5,380

3,000

2,460

2,490

66,460

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
166 MALHEUR RIVER BASIN

North Fork Malheur River at Beulah, Oreg.

Location.- Staff gage, lat. 43°54', long. 118°09<, in NE£ sec. 23, T. 19 S., R. 37 E., at 

Beuian, a quarter of a mile downstream from Agency Valley Dam and 12 miles northwest of 

Juntura. Datum of gage is 3,362.47 feet above mean sea level, datum of 1929.

Drainage area.- 420 square miles.

Kecords available.- January 1936 to September 1947. March 1909 to June 1912 and November 

J.yj.3 to July 1914 at site 6 miles downstream. June 1926 to December 1935 at site threequarters of a mile downstream, below intakes of two canals with combined capacity of 

about 10 second-feet.

Average discharge.- 12 years (1935-47), 126 second-feet.

Extremes,- Maximum discharge observed during year, 433 second-feet Apr. 25 to May 16 (gage

 Height, 2.46 feet); minimum, 3 second-feet (estimated) Oct. 13-31, Mar. 1 to Apr. 19.

1909-13, 1913-14, 1936-47: Maximum discharge, 7,000 second-feet (regulated by 

sudden storage release) May 7, 1943 (gage height, 8.4 feet, from floodmark); maximum 

unregulated, 5,910 second-feet Mar. 20, 1910; no flow at times; minimum prior to construction of dam, 5 second-feet Dec. 28, 1910, Jan. 26, 27, 1911.

Remarks.- Records good except those for Oct. 13 to Apr. 19, which are poor. Gage read 

once daily, twice daily at times. Flow regulated by Agency Valley Reservoir (see p. 

p. 164). Small diversions above station for irrigation; practically entire summer flow 

is diverted below station and above Juntura.

Cooperation.- Gage-height record furnished by Bureau of Reclamation.

Rating tables, water year 1946-47 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Jan. 13 Jan. 14 to Sept. 30

0.8 

1.0 

1.2 

1.4 

1.7

53

82

116

156

227

2.0 

2.3 

2.5

304

385

445

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

57

57

57

57

57

57

57

57

57

57

57

20

 a2

Nov.

a3

Dec.

. a4

Jan.

a6

6

> a6

Feb.

. a*

-

-

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. ..................................

April.. ....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

' a2

(

2

> a2

Apr.

a2

2

a2

203

304

304

317

352

394

433

433

433

433

433

Secondfoot-days

685

90

124

57,112

186

112

62

4,077

11,263

3,308

8,051

3, 268

1,171

32,397

May

433

433

433

433

433

433

433

433

433

433

433

433

433

433

433

424

349

294

294

294

294

294

294

294

294

294

288

283

268

260

250

Maximum

57

-

812

_

433

432

260

260

255

40

433

June

240

217

198

163

93

45

30

22

6

6

6

6

6

6

6

49

88

96

107

107

107

107

107

107

161

213

234

255

260

260

-

Minimum

-

.

_

250

6

257

40

36

-

July

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

260

257

257

257

Aug.

255

255

255

255

255

255

252

252

252

119

53

50

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

Mean

22.1

3.0

4.O

156

6.0

4.0

2.0

136

363

110

260

107

31.0

83.8

Sept.

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

39

39

39

39

38

38

38

38

38

38

38

37

36

36

Runoff in 

acre-feet

1,360

179

246

113,300

369

222

123

8 ,090

22,340

6,560

15,970

6,480

*

64,260

a No gage-height record; discharge computed on basis of discharge measurements made on Jan. 14, 

Mar. 19, Apr. 9, and estimated Agency Valley Reservoir outflow.
MALHEUR RIVER BASIN 167

Bully Creek near Vale, Oreg.

Location.- Water-stage recorder and concrete control, lat. 43°58', long. 117°21', in SWi 

sec. 33, T. 18 S., R. 44 E., 5 miles southwest of Vale.

Records available.- October 1945 to September 1947 in reports of Geological Survey; March 

1937 to September 1945 in files of State engineer. August 1903 to March 1907, February 

1910 to May 1917, March 1922 to June 1923 at site 9 miles upstream, in retorts of 

Geological Survey; February to June 1919 in reports of State engineer. Aoril 1904 to 

December 1905 at site at Vale, 6 miles downstream, in reports of Geological Survey; 

May to September 1938 in files of State engineer. April 1933 to May 1936 (fragmentary), 

at site 3 miles upstream, in files of State engineer. Records at various sites not 

equivalent because of diversions and increasing return flow from Vale-Oregon Canal 

since 1931.

Average discharge.- 11 years .(1933-34, 1937-47), 44.2 second-feet.

Extremes.- Maximum discharge during year, 990 second-feet Feb. 13 (gage height, 4.60 feet, 

from floodmark), from rating curve extended above 120 second-feet on basis of areavelocity studies; minimum, 2 second-feet Apr. 7-9, 12-16.

1903-7, 1910-17, 1919, 1922-23, 1933-47: Maximum discharge 6,240 second-feet 

Mar. 1, 1910 (gage height, 8.6 feet, site and datum then in use), from rating curve 

extended exene above 1,200 , secon-ee; second-feet; no fowlow at times..

Remarks . - Records fair except those for Nov. 1-30, Feb. 13-20, Apr. 11-23, May 15 to 

June 30 , which are poor. No regulation. Small diversions above station for irr 

tion; considerable consiaeraoie return flow noat times from Vale-Oregon vaie-uregon Canal lanaioft Bureau ofr Recl Kec 

Cooperation.- Water-stage recorder inspected by employee of Bureau of Reclamation.

rigaeclamation.

Discharge, in second-feet, water year October 1946 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.

19

20

20

19

19

17

18

19

18

17

17

15

15

15

13

14

16

14

13

13

13

13

13

12

12

12

12

12

13

13

13

Nov.

13

12

13

13

13

13

15

14

15

15

14

13

12

12

13

12

13

13

15

14

14

15

14

14

14

14

16

16

16

16

-

Dec.

15

15

16

15

16

16

15

15

a!5

a!4

*14

14

14

14

14

13

b!2

bll

12

12

12

12

11

12

12

12

14

11

11

bll

bll

Jan.

bll

blO

b9

b9

blO

blO

blO

blO

blO

10

11

blO

b9

b9

b8

b9

b8

b8

b9

b9

blO

blO

11

11

12

12

b!4

b!4

bX4

blZ

b!5

Feb.

12

12

22

28

£2

19

17

15

15

13

12

56

584

*258

158

e200

e!20

eSO

660

e45

36

33

33

31

29

26

24

21

-

-

-

Month

October. .............................

November. ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February ...................................

March. ................................. ...

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

18

17

15

15

14

13

12

13

12

13

11

10

10

10

9

9

9

9

8

8

8

8

8

8

7

7

7

7

5

4

3

Apr.

3

3

3

3

3

3

2

2

3

34

32'

2

2

2

3

4

3

4

15

6

4

5

6

7

7

7

8

7

7

Secondfoot-days

469

416

411

16,806

324

1,981

307

163

535

704

434

319

393

6,456

May

8

8

10

11

12

13

12

12

13

16

25

36

22

32

37

13

13

14

14

14

17

18

18

18

18

17

18

18

18

20

20

Maximum

20

16

16

410

15

584

18

34

37

42

22

12

23

584

June

22

21

34

36

40

41

37

27

25

25

35

42

33

18

17

16

17

16

15

15

16

30

16

14

14

14

16

19

17

16

Minimum

12

12

11

11

8

12

3

2

e

14

10

7

10

2

July

15

15

18

18

16

15

15

15

15

15

14

13

14

14

15

22

13

13

12

12

14

14

13

13

13

13

12

11

10

11

11

Aug.

8

7

8

8

9

10

9

11

10

10

11

10

10

10

11

1111

12

11

10

1111

12

12

12

10

10

10

1111

12

Mean

15.1

13.9

13.3

46.0

10.5

70.8

9.9

5.4

17.3

23. f

14.0

10.3

13.1

17.7

Sept.

12

13

14

23

22

10

10

12

12

12

12

11

10

10

11

111111

12

12

12

12

12

13

13

15

18

16

16

15

Runoff in 

acre- feet

930

825

815

33,330

643

3,930

609

323

1,060

1,400

861

633

780

12,810

* Winter discharge measurement made on this day. 

a No gage-height record; discharge interpolated, 

b Stage-discharge relation affected by ice.

e Stage-discharge relation indefinite; discharge computed on basis of weather records and records 

for North Pork Malheur River above Agency Valley Reservoir, near Beulah.
lf" 8 PAYETTE RIVER BASIN

South Fork Payette River at Lowman, Idaho

Location - Water-stage recorder, lat. 44°05', long. 115°37'30", in SWv sec. 27, T. 9 N., 

K. YE., 1,200 feet upstream from Rock Creek, half a mile northwest of Lowrran post 

office, and 4,100 feet downstream from Clear Creek.

Drainage area^- 456 square miles.

Records available.- May 1941 to September 1947.

Extremes.- Maximum discharge during year, 4,460 second-feet May 9 (gage height, 6.32 

I'eet) : minimum. 214 second-feet Jan. 28 (gage height, <>.63 feet 1

1941-47: Maximum discharge, 4,860 second-feet May 29, 1943 (gage height, 6.53 

feet): minimum, 148 second-feet Dec. 9, 1944 (gage height, 2.40 feet).

Remarks - Records excellent except those for periods of ice effect, which are good. No 

regulation. Several small diversions for irrigation and placer mining, the return 

flow from which enters river above station.

Rating table, water year 1946-47, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

Z.I 238 4.1 1,260 

2.8 278 4.5 1,710 

3.0 373 5.0 2,340 

3.3 553 5.6 3,210 

3.7 880 6.3 4,420

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

458 

657 

501 

452 

446

422 

412 

406 

395 

384

378 

373 

368 

363 

358

358 

358 

353 

353 

353

446 

527 

596 

476 

452

546

482 

452

422 

417 

400

Nov.

406 

358 

363 

400

390

390 

390 

378 

358 

384

36S 

338 

348 

363 

343

323 

348 

412 

673 

618

501 

476 

527 

520 

476

476 

446 

458 

470 

452

Dec.

434 

422

412 

417 

422

446 

440 

428 

422

412

464 

*589 

764 

952 

871

673 

464 

452 

534 

488

470 

464 

434 

422 

428

434 

422 

363 

338 

305 

310

Jan.

358 

314 

305 

333 

363

422 

395

378 

380 

390

390 

360 

340 

340 

310

300 

320 

325 

360 

370

350 

340 

340 

340 

340

333 

314 

258 

310

305 

3OO

Feb

314 

333 

323 

314 

314

314

305

300 

300 

310

318 

384 

452 

406 

395

400 

*390 

4OO 

406 

390

390 

378 

373 

378 

390

390 

373 

353

Month . SecondMo[lth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Julji 

Augu 

Sept

Wa

lendar year 1946

ember ... .......... ...

13.S64 

12,753 

14,896

36,471

10,583 

10,093 

18,058 

51,616 

94,150 

69,240 

33,904 

15,244 

11,776

ter year 1946 47 ... .... 335,677

Mar.

353 

373 

368 

358 

348

333 

348 

348 

343 

373

378 

353 

363 

378 

428

520 

641 

748 

826 

853

871 

898 

907 

817 

764

730 

714 

756 

817 

880 

871

Maximum

657 

673 

952

3,640

422 

452 

907 

1,790 

4,350 

3,130 

1,500 

633 

520

4,350

Apr.

826 

808 

782 

756 

697

665 

633 

618 

611 

596

589 

603

722 

970 

1,200

1,260 

1,300 

1,240 

1, 180 

1,260

1,320 

1,310 

1,280 

1,220 

1,220

1,300 

1,450 

1,650 

1,790

1,760

May

1,810 

2,380 

3,130 

3,370 

3,350

3,420 

3,660 

4,190 

4,350 

3,560

2,940 

2,720 

2,690 

2,570 

2,480

2,510 

2,620 

2,670

2,670 

2,810

2,940 

3,020 

2,940 

2,940

3,100

3,240 

3.470 

3,490 

3, LOO

2 , 900 

3, 110

Minimum

353 

323

305

254

258

300 

333 

589 

1,810 

1,410 

649 

395 

353

258

June

3,130 

3,080 

2,920 

2,710 

2,460

2,460 

2,360 

2,640 

3,080 

2,780

2,550 

2,310 

2,200 

2,180 

2,190

2,300 

2,500 

2,540 

2,540 

2,470

2,170 

1,910 

1,790 

1,770 

1,820

1,890 

1 , 850 

1,690 

1,540 

1,410

Mean

431 

425 

481

922

341 

360 

583 

1,054 

3,037 

2,308 

1,094 

492 

393

920

July

1,380 

1,420 

1,500 

1,500 

1,440

1,420 

1,450 

1,480 

1,460 

1,400

1,340 

1,240 

1,160 

1,140 

1,120

1,100 

1,050 

998 

970 

943

916 

880 

853 

817 

773

748 

722 

697 

681 

657 

649

Per 

square 

mile

0.945 

.932 

1.05

2.02

.748 

.789 

1.28 

2.31 

6.66 

5.06 

2.40 

1.08 

.862

2.02

Aug.

633 

618 

603 

603 

582

567 

546 

534 

527 

520

514 

501 

494 

488 

476

470 

458 

458 

452 

464

458 

470 

470 

452 

434

422 

417 

412 

406 

400 

395

Sept.

390 

390 

422 

400 

384

378 

400 

422 

417 

422

400 

390 

378 

373 

373

378 

520 

434 

412 

395

390 

384 

373 

368 

368

373 

368 

363 

358 

353

Runoff

Inches

1.09 

1.04 

1.21

27.44

.86 

.82 

1.47 

2.58 

7.68 

5.65 

2.77 

1.24 

.96

27.37

Acre feet

26,510 

25,300 

29,550

667,300

20,990 

20,020 

35,820 

62,710 

186,700 

137,300 

67,250 

30,240 

23,360

665,800

* Winter discharge meas 

Note.- Stage-discharge

rement made on this day. 

elation affected by Ice Jar 9-25, 29-31, Feb. 8-10.
PAYETTE RIVER BASIN 169

South Pork Payette River near Garden Valley, Idaho

Location.- Water-stage recorder, lat. 44°04', long. 115°56', in sec. 1, T. 8 N., R. 4 

E., at Garden Valley ranger station, 300 feet upstream from Station Creek, 2.7 miles 

southeast of Garden Valley, and 5.9 miles upstream from Middle Fork.

Drainage area.- 779 square miles.

Records available.- May 1921 to September 1947.

Average discharge.- 23 years (1924-47), 1,217 second-feet.

Extremes.- Maximum discharge during year, 6,470 second-feet May 9 (gage height, 5.83 

TeeTTT minimum, 317 second-feet Jan. 29 (gage height, 1.48 feet); minimum daily, 

385 second-feet Nov. 16, Jan. 28.

1921-47: Maximum discharge observed, 10,600 second-feet May 26, 1928 (gage 

height, 8.0 feet); minimum, 75 second-feet Dec. 15, 1935, Jan. 26, 1936 (gage height, 

0.70 foot), from rating curve extended below 280 second-feet; minimum daily, 196 second-feet Dec. 10, 1944.

Remarks.- Records good except those for periods of ice effect or faulty gage-height 

record, which are fair. Practically no diversions above station. Since Nov 2, 

1930, flow has been regulated by Deadwood Reservoir (see p. 175).

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,150

1,370

1,020

943

866

791

693

684

625

600

584

502

461

454

454

447

441

4,41

435

435

562

642

895

642

584

693

617

569

516

509

495

Nov.

502

422

410

475

475

468

482

461

428

447

447

404

397

441

416

385

422

502

924

1,000

701

642

710

745

650

650

617

617

650

642

-

Dec.

577

569

531

524

531

577

562

554

539

516

577

904

 1,260

1,710

1,560

1,180

800

745

819

737

701

684

634

584

600

617

609

524

428

420

410

Jan.

470

44O

425

475

520

56O

540

520

530

540

550

500

480

480

440

440

450

450

500

a510

a 500

a4SO

a 480

482

475

488

447

385

*42S

428

416

Feb.

428

441

461

428

428

435

422

402

402

430

441

562

763

667

609

617

60O

*609

609

584

584

569

569

569

569

577

562

524

_

_

-

Month

October. .......... ........................

November. ......... .............. .........

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ............................ .....

March. .....................................

April ............................ ....... .

May. .............. ........................

June .......................................

July.. .....................................

August .....................................

September. ........................... .....

Water year 1946 47 ......................

Mar.

495

562

554

524

502

468

502

488

482

569

584

539

531

546

600

728

934

1,050

1,160

1,220

1,260

1,290

1,350

1,240

1,120

1,080

1,050

1,090

1,170

1,270

1,300

Apr.

1,240

1,190

1,140

1,100

1,030

992

934

924

904

895

885

895

1,030

1,370

1,770

1,940

2,030

1,950

1,870

1,980

2,090

2,060

2,020

1,900

1,860

2,000

2,230

2,540

2,790

2,700

-

Secondfcot-days

20,120

16,532

21,983

557,871

14,829

14,861

26 , 258

48,259

148,650

110,630

53,580

50,750

36 , 798

563,250

May

2,700

3,410

4,540

5,020

4,94O

4,980

5,300

5,940

6,320

5,300

4,450

4,310

4,450

4,400

4,320

4,400

4,500

4,520

4,520

4,690

4,860

4,980

4,840

4,790

4,920

5,110

5,620

5,640

5,150

4,790

4,940

Maximum

1,370

1,000

1,710

5,680

560

763

1,350

2,790

6,320

5,030

2,160

1,900

1,620

6,320

June

4,880

4,820

4,620

4,340

4,020

3,970

3,810

4,160

5,030

4,730

4,410

4,000

3,780

3,660

3,630

3,680

3,920

3,920

3,880

3,780

3,440

3,070

2,850

2,780

2,760

2,790

2,760

2,580

2,370

2,190

Minimum

435

385

410

360

385

402

468

885

2,700

2,190

1,410

1,380

617

385

July

2,120

2,110

2,160

2,150

2,070

2,020

2,000

2,040

2,020

1,940

1,850

1,740

1,030

1,590

1,560

1,550

1,550

1,540

1,570

1,610

1,630

1,630

1,630

1,610

1,540

1,510

1,480

1,470

1,430

1,420

1,410

Aug.

1,380

1,380

1,420

1,470

1,480

1,490

1,490

1,590

1,680

1,740

1,900

1,800

1,670

1,670

1,630

1,650

1,670

1,770

1,740

1,740

1,730

1,660

1,610

1,540

1,620

1,820

1,770

1,670

1,730

1,670

1,570

Mear

649

551

709

1,528

478

531

847

1,609

4,795

3,688

1, 728

1,637

1,227

1,543

Sept.

1,620

1,550

1,530

1,470

1,440

1,480

1,500

1,500

1,480

1,540

1,420

1,420

1,450

1,440

1,440

1,440

1,590

1,390

1,250

1,190

1,060

1,010

856

837

719

667

650

617

617

625

Runoff in 

acre-feet

39,910

32,790

43,600

1,106,000

29,410

29,480

52,080

95,720

294,800

219,400

106,300

100,700

72 ' 990

1,117,000

881401 O - 50 - 12
170 PAYETTE RIVER BASIN

South Fork Payette River near Banks, Idaho

Location.- Water-stage recorder, lat. 44°OS'30", long. 116°06'in sec. 28, T. 9 N.,

 K. '3 'E. , 1 mile upstream from North Pork Payette River and 1-| miles northeast of 

Banks.

Drainage area.- 1,800 square miles.

Records available.- August 1921 to September 1947.

Average discharge.- 26 years, 1,627 second-feet.

Extremes.- Maximum discharge during year, 9,100 second-feet May 9 (gage height, 8.72

 feet); minimum, 555 second-feet Nov. 16 {gage height, 0.64 foot).

1921-47: Maximum discharge, 13,800 second-feet May 17, 1927 (gage height, 10.6 

feet, from floodmarks); minimum, about 225 second-feet Dec. 15, 1935, Jan. 26, 1936, 

Dec. 26, 1939.

Remarks.- Records excellent except those for period of no gage-height record, which are 

good. Small diversions above station for irrigation. Since Nov. 2, 1930, flow has 

been regulated by Deadwood Reservoir (see p. 175).

Rating table, water year 1946-47 (gage height, In feet,

and discharge, In second-feet)

(Shifting-control method used Jan. 4 to Feb. 16, 

Apr. 9 to July 3)

0.7 585 3.0 2,160

1.4 99O 4.0 3,100

2.0 1,390 5.0 4,150

6.0 5,390

7.2 7,050

8.5 8,960

Discharge, in second feet, water year October 1946 to September 1947

Day

1

2 

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

,260

,600 

,210

,100 

,020

948

864

852

804

780

762

700

651

646

640

634

629

629

624

629

774

804

1,210

894

816

912

858

798

739

728

717

Nov.

728

651 

590

678 

70O

700

728

700

651

678

678

634

590

673

640

596

646

786

,620

,770

,130

,010

,190

,280

,080

,080

,040

,080

,210

,160

"

Dec.

1,040

996 

930

906 

912

1,010

996

972

942

900

1,000

2,040

2,670

3,400

3,090

2,300

1,610

1,360

1,480

1,330

1,230

1,170

1,080 

1,010

1,010

1,020

1,030

894

734

722

651

Jan.

762

717 

629

690 

762

882

864

834

864

882

900

816

792

786

700

706

762

744

840

858

822

792

786

798

780

792

750

646

646

678

646

Feb.

640

678 

717

678 

678

684

668

662

662

700

706

888

1,460

1,250

1,080

1,080

1,070

1,080

1,060

1,010

1,000

984

1,000

1,010

1,010

996

972

912

_

-

-

Month

October ....................................

November . ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July .......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

864

948 

978

954

912

852

876

882

876

1,160

1,240

1,130

1,080

1,110

1,200

1,400

1,710

1,940

2 , 120

2,200

2,270

2,300

2,490

2,280

2,080

1,990

1,910

1,940

2,050

2,240

2 , 340

Apr.

2,220

2,140 

2,060

1,980 

1,860

1

1

1

1

1

1

1

1

2

2

3

3

3

3

3

3

3

3

2

3

3

3

4

3

Secondfoot-days

26,232

26,697

40,435

807,241

23, 926

25,335

48 322

76^880

196 , 890

133,790

61,180

54,930

40,845

755,462

,780

,670

,640

,610

,580

,530

,540

,710

,180

,800

,030

,160

,110

,010

,150

,250

,150

,080

,870

,830

,000

,300

,690

,030

,920

-

May

3,860

4,760 

6,240

6,960 

6,870

6,900

7,340

8,150

8,880

7,660

6,410

6,070

6,540

6,140

5,940

5,900

5,970

5,960

5,870

6,050

6,230

6,330

6,280

6,020

6,130

6,350

6,700

6,790

6,160

5,760

5,870

Maximum

1,600

1,770

3,400

8,180

900

1,460

2,490

4,030

6^400

2,530

2,000

1,760

8,880

June

5,870

5,820 

5,560

5,230 

4,830

4,750

4,560

5,000

6,400

6,030

5,550

5,000

4,690

4,520

4,410

4,450

4,700

4,650

4,570

4,440

4,110

3,640

3,390

3,280

3,240

3,260

3,240

3,090

2,860

2,650

-

Minimum

624

590

651

555

629

640

1,530

3,860

2,650

1,570

1,520 

750

624

July

2,530

2,480 

2,510

2,500 

2,420

2,340

2,320

2,320

2,280

2,200

2,100

2,020

1,900

1,830

1,790

1,770

1,780

1,750

1,780

1,820

1,820

1,810

1,820

1,810

1,720

1,700

1,670

1,640

1,600

1,580

1,570

Alg.

1,

1,

'

f

',

550

520 

550

590 

600

620

600

670

780

,000

1

j

960

780

780

750

770

780

900

890

IBBO

,900

'

',

820

BOO

710

750

,980

,

,

.

Mean

846

893

1

2,212

772

905

1 559

2,563

6,351

4,460

1,974

1,772 

1,362

2,070

950

820

BBO

850

700

Sept.

,760

,700 

,670

,620 

,560

,580

,600

,670

,590

,680

,550

,520

,570

,550

,550

,550

,710

,560

,360

,330

a ,250

a ,200

a ,020

a975

a850

a820

a BOO

a750

3750

a750

Runoff in 

acre-feet

52,030

52,950

80,200

1,601,000

47,460

50,250

152^500

390,500

265 , 400

121,300

109,000 

81,010

1,498,000

a No gage-height record; dlschsrge computed on basis of records for North Fork Payette River near 

Banks and Payette River near Horseshoe Bend.
PAYETTE RIVER BASIN 171

Payette River near Horseshoe Bend, Idaho

L° C^ tl0o'" Water ' stage recorder, lat. 43°56', long. 116°11'30", in SW£sw£ sec. 14, T. V 

w -. R - 2 E., 100 feet east of tracks of Idaho Northern branch of Oregon Short Line 

Railroad and 1? miles north of Horseshoe Bend. Datum of gage is 2,623.5 feet above 

mean sea level (levels by Corps of Engineers)

Drainage area.-* 2,230 square miles.

Kecorgs available - November 1912 to September 1916, July 1919 to September 1947. 

^eoruary iyue to November 1912 at site 2 miles upstream

Average discharge.- 36 years (1907-15, 1919-47), 3,017 second-feet.

Extremes.- MaxUnum discharge during year, 16,900 second-feet May 9 (gage height 8 33 

TeeTTT minimum, 827 second-feet Nov. 16 (gage height, 1.03 feet).

n c i9 2S~ 16 ' 1919 - 47 : Maximum discharge, 28,100 second-feet June 9, 1921 (gage height, 

9.57 feet); minimum, 350 second-feet Dec. 17, 1935 (gage height, 0.26 foot), from 

rating curve extended below 600 second-feet.

Remarks.- Records excellent except those for Nov. 18 to Dec. 12 and those for periods of 

ice effect or no gage-height record, which are good. Flow regulated by ["adwood 

Reservoir (see p.,175), Payette Lake (see p. 178), and Lake Fork Reservoir (see p. 185). 

Several diversions from tributaries above station for irrigation.

Rating table, water year 1946-47, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Nov. 18 to Dec. 12)

1.1 890 4.0

1.5 1,3OO 5.O

2.0 1,900 6.0

2.5 2,560 7.O

3.0 3,280 8.3

5,090

7,270

9,740

12,600

16,800

Disoharge, in seoond-feet. water year Ootober 1946 to September 1947

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

Oot.

1,570

2,020

1,690

1,570

1,460

1,340

1,230

1,200

1,160

1,110

1,O8O

1,020

962

926

926

917

908

899

899

899

1,070

1,340

1,870

1,700

1,480

1,510

1,470

1,380

1,260

1,180

1,150

Nov.

1,180

1,070

899

971

1,070

1,170

1,210

1,140

1,050

1,060

1,070

1,010

935

980

. 990

971

98O

1,210

2,870

4,430

2,940

2,250

2,250

2,730

2,520

2,330

2,190

2,280

a3, 000

a2,900

-

Dec.

a2,700

a2,500

a2,100

1,820

1,860

2,260

2,410

2,260

2,080

1,950

2,100

4,510

*6,360

7,960

7,570

5,500

3,540

2,760

2,730

2,710

2,620

2,590

2,480

2,320

2,250

2,370

2,480

2,210

1,890

1,560

1,460

Jan.

1,500

1,360

1,300

1,350

1,430

1,600

1,610

1,580

1,540

1,580

1,700

1,530

1,450

1,350

1,250

1,250

1,280

1,250

1,400

1,450

1,450

1,350

*1,400

1,400

1,400

1.380

1,300

*1,150

1,150

1,200

1,150

Feb.

1,150

1,200

1,260

1,230

1,240

1,240

1,210

1,180

1,140

1,200

1,230

1,610

2,340

2,530

2,430

2,340

2,220

2,210

2,160

1,980

1,960

1,910

1,910

1,980

2,080

1,990

1,900

1,710

_

-

-

Month

Ootober. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

Maroh. ......................................

April ......................................

May. .......................................

June .......................................

July... ....................................

August .....................................

September ..................................

Water year 1945-47 ......................

Mar.

1,600

1,700

1,760

1,750

1,670

1,590

1,610

1,630

1,640

*1,980

2,160

2,040

2,030

2,060

2,200

2,520

2,950

3,330

3,750

4,070

4,230

4,300

4,810

4,360

3,860

3,770

3,800

3,860

4,120

4,550

4,870

Apr.

4,830

4

4

4

,550

,280

,070

3,750

3

3

3

3

3

3

3

3

4

4

5

5

5

5

5

6

5

5

5

5

5

5

6

7

7

Secondfoot-days

39

5l)656

91,910

1,417,760

43,090

48,540

90,570 

145,200

247)240

84,870-

69 , 670

52,270

1,339,202

,550

,410

,360

,360

,360

,310

,240

,420

,070

,950

,400

,600

,670

,600

,820

,010

,710

,500

,290

,190

,350

,770

,470

,110

,200

-

May

7,250

8,240

10,200

11,400

11,900

12,500

13,400

14,900

16,500

16,100

15,300

14,900

14,700

13,700

12,600

11,800

11,500

11,200

11,000

11,200

11,200

11,300

11,200

11,000

11,200

11,500

11,700

12,000

11,500

11,000

11,100

Maximum

2,020

4,430

7,960

15,000

1,700

2,530

4,870 

7,200

1 1 ?OO

i'°flri

2*530

2)120

16,500

June

11,200

11,000

10,700

10,600

10,200

9,900

9,140

9,140

11,000

11,100

10,900

10,200

9,430

3,800

8,220

7,620

7,620

7,570

7,690

7,910

7,620

6,950

6,270

5,650

5,460

5,330

5,290

5,170

4,930

4,630

-

Minimum

899

1,460

899

1 15O

l)l40

1,590 

3,240

7 25O 4)530

2,150 

2,020

1,190

899

July

4,280

3,980

3,820

3,770

3,600

3,470

3,280

3,020

2,950

2,910

2,800

2,690

2,550

2,460

2,380

2,340

2,330

2,300

2,330

2,380

2,420

2,380

2,380

2,380

2,330

2,300

2,260

2,240

2,200

2,190

2,150

Aug.

2,110

2,

2,

2,

110

120

160

2,160

2,160

2,

2,

2,

150

220

530

2,360

2,530

2,

2,

2,

19O

530

520

2,220

2,220

2,

2,

2,

210

530

520

2,320

2,36o'

2,

2,

2,

290

280

170

2,130

2,370

2,

2,

2,!

2,

520

70

20

70

2,02O

Mesi

l)722

3,334

l)

24*

12,

8 ,

2,

734

922

940

100

241

738

OAT

l)742

3,669

Sept.

2,070

1,990

1,960

1,930

1,860

1,870

1,910

1,980

1,930

2,120

1,910

1,870

1,900

1,860

1,850

1,850

2,030

2,020

1,820

1,820

1,710

1,670

1,470

1,420

1,310

1,270

1,260

1,220

1,200

1,190

-

Runoff in 

ao re-feet

77,740

102,500 

182,300

2,812,000

35,470

96 ,280

179,600 

288 , 000

743,800

168)300

103)700

2.656,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

South Pork Payette River near Banks and North Pork Payette River near Smiths Perry. 

Note.- Stage-discnarge relation affected by ice Dec. 3O to Jan. 4, Jan. 13 to Feb. 2.
172 PAYETTE RIVER BASIN 

Payette River near Emmett, Idaho

Location.- Water-stage recorder, lat. 43°56', long. 116°27', in 'sec. 22, T. 7 N., R. 1W., 

tnree-eighths of a mile downstream from Black Canyon Dam and 5 miles northeast of 

Emmett.

Records available.- June 1925 to September 1947. 

Average discharge.- 22 years, 2,868 second- feet.

Extremes.- Maximum discharge during year, 17,900 second-feet (regulated) May 9 (gage 

neight, 11.13 feet); minimum, 508 second-feet (regulated) Nov. 15 (gage height, 2.14 

feet); ; minimum mnmum daily, ay, 810 second- secon- feet ee (regulated) reguae Oct. c. 14..

1925-47: Maximum discharge, 22,800 second-feet May 1, 1938 (gage height, 12.90 

feet); minimum daily, 3 second-feet Jan. 10-14, Feb. 2, 22-25, 1938, when gates in 

were closed.

Remarks . - Records good. Diversions above station for irrigation. Flow regulated by

diversion at and operation of gates in Black Canyon Dam and by Deadwood Reservoir 

(see p. 175), Payette Lake (see p. 178), and Lake Fork Reservoir (see p. 185).

Cooperation.- Gage-height record collected in cooperation 'with Bureau of Reclamation.

Rating table, water year 1946-47 (gage height, In feet,

and discharge, in second-feet) 

^dhifting-contro) method used Feb. 12 to July 26)

dam

2.4 760 7

3.0 1,420 8

4.0 2,690 9

5.0 4,170 10

6.0 5,880 10

0 7,780

0 9,860

0 J.2,200

0 15,000

6 16,800

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1,060

1,370

1,640

1,210

1,210

1,200

1,110

1,020

1,020

937

937

915

830

810

1,040

970

992

992

992

937

T-,010

1,410

1,640

1,990

1,620

1,400

1,580

1,490

1,380

1,160

1,160

Nov.

1,160

1,160

992

1,050

1,040

1,000

1,220

1,190

1,010

1,020

1,070

1,020

959

970

1,040

1,270

1,180

1,240

3,000

5,650

3,600

2,830

2,960

3,520

3,120

3,340

3,430

3,300

3,980

3,800

-

Dec.

3,220

2,690

2,370

2,320

2,340

2,720

3,OOO

2,800

2,620

2,430

2,330

4,280

7,080

9,060

9,340

7,110

4,900

3,380

3,140

3,210

3,100 '

2,940

2,840

2,690

2,510

2,560

2,730

2,650

2,250

1,890

1,580

Jan.

1,590

1,620

1,480

1,420

1,430

1,480

1,700

1,710

1,640

1,790

1,890

1,820

f 1,600

fl,460

f 1,460

1,350

f 1,280

f 1,230

f 1,300

fl,480

f 1,540

1,580

1,600

1,600

1,670

1,680

1,860

1,520

1,240

1,480

1,320

Feb.

1,370

1,410

1,620

1,420

1,460

' 1,490

1,520

1,460

1,360

1,480

1,460

1,660

3,680

3,490

3,240

3,140

2,960

2,660

2,520

2,560

1,980

1,640

1,640

1,660

1,670

1,680

1,700

1,790

_

_

-

Month

October. ................................

November. ........................ .........

December. ...................................

Calendar year 19*6 ......................

January... .......................... ....

February ...................................

March. .....................................

April .................................... .

May........................................

June .......................................

July. ......................................

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

1,850

1,860

1,840

1,820

1,950

1,830

1,780

1,840

1,830

2,620

2,750

2,520

2,430

2,380

2,470

2,830

3,420

3,820

4,220

4,590

4,810

4,780

5,290

4,880

4,470

4,030

4,200

4,120

4,360

4,810

5,290

Apr.

5,

4,

4,

4,

3,

3,

3,

3,

3,

3,

3,

3,

3,

4,

4,

5,

5,

5,

5,

5,

5,

5,

5,

4,

4,

4,

5,

6,

6,

6,

Secondfoot-days

37,032

6^,121

108,080

1,424,405

47,820

55,720

101,690

142,140

369,040

242,410

54,090

40,430

33,672

1,294,245

340

900

580

230

880

610

550

440

430

480

400

310

400

030

850

310

500

520

410

540

790

430

260

880

740

800

170

010

560

790

May

6,810

7,700

9,930

11,200

11,700

12,100

13,200

14,600

16,700

16,400

15,400

14,600

15,000

13,800

12,600

11,700

11,300

11,000

10,900

11,000

11,000

n.oor

11,000

10,700

10,800

11,100

11,300

11,700

11,200

10,800

10,800

Maximum

1,990

5,650

9,340

16,900

1,890

3,680

5,290

6,790

16,700

11,600

3,540

1,460

1,430

16,700

June

10,900

10,900

1O.8OO

10,600

10,300

9,980

9,170

9,250

11,600

11,600

11,100

10,500

9,620

9,040

8,520

7,740

7,560

7,380

7,340

7,500

7,270

6,520

5,830

5,080

4,690

4,640

4,540

4,390

4,170

3,880

-

Minimum

810

959

1,580

810

1,230

1,360

1,780

3,310

6,810

3,880

1,240

1,190

860

810

July

3,540

3,120

2,970

2,900

2,760

2,560

2,300

2,040

1,930

1,900

1,730

1,610

1,430

1,350

1,310

1,270

1,240

1,26Q

1,270

1,280

1,280

1,300

1,320

1,320

1,370

1,340

1,340

1,300

1,270

1,240

1,240

Aug.

1,220

1,

1,

1,

200

190

190

1,190

1,190

1,

1,

1,

190

190

270

1,300

1,340

1,

1,

1,

550

570

550

1,300

1,210

1,

1,

1,

200

260

510

1,320

1,430

1,

1,

1,

120

580

130

1,460

1,440

1,

1,

1,

1,

570

570

570

560

1,260

Mean

1,195

2,071

3,486

3,902

1,543

1,990

3,280

4,738

11,900

8,080

1,745

1,30*

1,122

3,546

Sept.

1,210

1,210

1,230

1,230

1,190

1,160

1,150

1,150

1,140

1,210

1,230

1,200

1,180

1,170

1,100

1,000

a, 010

1,430

1,240

1,360

1,290

1,230

1,060

1,000

926

860

860

860

860

926

-

Runoff in 

,ao re-feet

73,450

123,200

214<400

2,825,000

94,850

110,500

201,700

281,900

732,000

480,800

107,300

80,190

66,790

2,567,000

f Discharge computed from average of hourly readings of long-dista 

by Bureau of Reclamation.

gage at power plant furnished
PAYETTE RIVER BAfIN 173

Payette River near Payette, Idaho

Location.- Water-stage recorder, lat. 44°02'30", long. 116°55'30", in SW£ sec. 10, T. 8 

N. , K . 5 W. , at highway bridge, If miles south of Payette.

Records available.- August 1935 to September 1947. 

at site ~6 miles downstream.

January 1895 to July 1897 (incomplete)

Average discharge.- 12 years (1935-47), 3,025 second-feet.

Extremes.- Maximum discharge during year, 16,700 second-feet May 10 (gage height, 10.83 

reet J"; minimum, 659 second-feet July 17; minimum gage height, 4.12 feet Oct. 15, 

July 17; minimum daily discharge, 695 second-feet July 17, 18.

1895-97, 1935-47: Maximum discharge observed, 28,300 second-feet June 4, 1896 

(gage height, 9.30 feet, site and datum then in use); minimum, 180 second-feet Oct. 13, 

20, 1935 (gage height, 2.04 feet); minimum daily, 220 second-feet Oct. 5, 1935.

Remarks.- Records excellent. Many diversions above station for irrigation. Flow reguiatea by Black Canyon Dam and reservoirs on tributary streams.

Rating tables, water year 1946-47, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Nov. 20 to Dec. 30, 

Feb. 13-Z1, Mar. 10 to May 2)

Oct. 1 to May 2 May 3 to Sept. 30

4.1 866 6.0 3,710 4.1 635 6.8 4,990

4.3 1,130 6.8 5,310 4

4.6 1,530 7.6 7,330 4

5.2 3,390 8.6 10,300 £

t.3 880 7.6 6,740

t.6 1,280 8.6 9,350

.3 3,150 9.6 13,300

6.0 3,460 10.8 16,600

Discharge, in second feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

978

1,090

1,530

1,410

1,310

1,330

1,300

1,180

1,180

1,120

1,060

1,070

1,030

928

928

1,080

1,040

1,070

1,080

1,170

1,220

1,530

1,740

3,260

3,130

1,740

1,810

1,860

1,740

1,590

1,530

Nov.

1,550

1,530

1,480

1,360

1,350

1,330

1,410

1,590

1,480

1,410

1,380

1,430

1,330

1,310

1,320

1,530

1,550

1,580

1,980

5,400

4,750

"3,480

3,140

3,980

3,580

3,800

4,210

3,750

4,310

4,430

-

Dec.

3,980

3,340

3,890

3,640

3,630

3,910

3,310

3,340

3,050

3,800

3,630

3,480

6,670

8,730

10,200

8,450

*5,900

4,080

3,430

3,530

3,390

3,280

3,170

2,990

2,810

2,760

2,960

3,070

2,640

2,240

1,970

Jan.

1,830

bl,850

bl,800

b 1,800

bl,700

bl.800

bl,900

2,000

2,000

1,930

3,140

3,130

3,080

1,650

aj.,600

al,600

al,500

al,550

al,650

al,800

1,910

1,810

1,730

1,740

1,800

1,810

3,100

1,790

1,560

1,590

1,600

Feb.

1,530

1,550

1,810

1,700

1,700

1,700

1,730

1,660

1,630

1,580

 1,620

1,940

4,250

3,850

3,750

3,570

3,440

3,160

3,640

3,830

3,700

1,790

1,810

1,810

1,810

1,830

1,830

1,880

-

-

-

Month

October. ...................................

November ......................... .........

December. ..................................

Calendar year 1946 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

Mav » 

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

1,970

3,030

3,100

1,980

3,080

3,080

1,940

3,080

3,030

3 "j'O

3,070

3,910

3,670

3,670

3,650

3,910

3,380

3,830

4,330

4,610

4,900

4,960

5,390

5,370

4,800

4,350

4,330

4,350

4,490

4,830

5,390

Apr.

5

5

4

4

4

4

3

3

3

3

3

3

3

3

4

4

5

5

5

5

5

5

4

4

4

4

4

5

5

6

Secondfoe t-days

41,694 

73,530

119,040

1,411,688

55,730

63,080

106 , 580

138, 390

347 340 

336)480

38,435

37,054 

29,222

1,275,555

,440

,200

,940

,570

,250

,140

,890

,710

,780

,780

,670

,570

,500

,710

,410

,920

,180

,220

,300

,070

,440

,180

,900

,630

,330

,270

,550

,050

,740

,150

May

6,100

6,510

8,130

9,810

10,500

10,900

11,700

13,000

14,800

16,300

14,900

14,300

14,700

13,800

13,700

11,600

11,000

10,700

10,500

10 , 300

10 , 400

10,500

10,400

10,300

10 , 100

10,500

10,500

11,100

10 , 800

10,300

10,300

Maximum

2, 260 

5,400

10,200

15,900

3,140

4,350 

5 390

5)150

16,300

11,800

3,010

1,060 

1,390

16,300

June

10 , 900

10,800

10,800

10,600

10,400

9,930

9,450

8,980

10,600

11,800

11,300

10,700

9,870

9,030

8,450

7,760

7,330

7,260

6,900

7,030

6,990

6,300

5,580

4,790

4,360

3,930

3,880

3,860

3,640

3,370

Minimum

93

1,31(

1.97C

49

1,50

1,53 

1 94'

e)ioc

3 37 *69

70

76

69.

July

3,010

3,690

3,380

3,340

3,160

1,990

1,860

1,700

1,390

1,350

1,210

1,130

1,080

933

792

755

695

695

755

755

768

805

780

818

855

893

855

818

792

793

780

Aug.

731

731

719

707

719

731

731

731

743

3^0

868

380

371

319

919

842

305

305

342

906

906

371

397

384

1,060

1,060

1,C

l.C

)10

no

397

384

945

Mean

3 1,345 

) 3,417

) 3,840

5 3,868

3 1,798

) 3 253

I 3 , 438

) 4,613

) 11,300

1 7,893 

3 1,340

3 974

> 3,495

Sept.

855

855

868

855

880

843

868

958

1,050

1,040

1,180

1,110

1,080

1,060

1,050

997

958

1,110

1,390

1,170

1,220

1,060

1,080

893

918

842

805

780

780

768

-

Runoff in 

acre- feet

82,700 

143,800

236,100

2,800,000

110,500

125,100

311,400

274,500

IRQ ion

76)310

53,660

57,960

3,530,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station near Eiranett.

b Stage-discharge relation affected by ice.
174 PAYETTE RIVER BASIN

Clear Creek at Lowman, Idaho

Location.- Staff gage, lat, 44°05', long. 115°37', In SW^SEij sec. 27, T. 9 N., R. 7 E., 

at highway bridge at Lowman, 550 feet upstream from mouth.

Drainage area.- 59.6 square miles.

Records available.- May 1941 to September 1947.

Extremes - Maximum discharge observed during year, 540 second-feet May 8; maximum gage 

height observed, 4.25 feet Jan. 6 (Ice jam); minimum discharge observed, 29 secondfeet Nov. 2, 3.

1941-47: Maximum discharge observed, 754 second-feet May 31, 1943; maximum gage 

height observed, 6.10 feet Jan. 9, 10, 1942 (ice jam), site and datum then in use; 

minimum daily discharge, 16 second-feet Dec. 10, 1944.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Gage read once daily. Feeder canal for small power plants diverts 

about 1 mile above gage;_water is returned to creek above station except that used 

for irrigation of small pasture adjacent to Lowman.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

37 

52 

a45 

a43 

42

37 

35 

35 

35 

334

33 

35 

33 

33 

33

31 

31 

332 

33 

35

35

345 

61 

354 

52

52 

49 

345 

342 

340 

34O

Nov.

39 

29 

29 

47 

347

47 

347 

42 

42 

42

37 

35 

47 

342 

39

38 

44 

47 

97 

55

49 

49 

58 

49

47

52

349 

49 

49

47

Dec.

39 

a39 

a38 

a38 

a39

44 

47 

44 

42 

39

61 

*83 

129 

137 

118

a9o 

66 

66

72 

66

60 

a58 

a54 

a50 

a50

52 

49

42 

39 

39 

39

Jan.

 40 

(*)

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

Julj 

Augu 

Sept

Wa

lendar year 1946 

ary

ember .....................

ter year 1946-47 ..........

Feb.

42 

43 

42

41

41 

41 

41 

40 

39

40 

42 

44 

47 

44

a45 

*46 

345 

44 

42

44 

44 

44 

344 

44

42 

42 

44

Secondfoot-days

1,239 

1,390 

1,829

41,047

1,240 

1,199 

2,183 

4,641 

13,438 

7,911 

1,999 

1,116 

986

39,171

Mar.

40 

36 

a38 

a36 

34

36 

34 

34

33 

34

38 

40 

44 

48 

54

56 

72

88 

97 

107

111 

118 

114

allO 

a!05

100 

93 

97 

104 

118 

114

Maximum

61 

97

137

501

47 

118 

303 

540 

394 

100 

42 

40

540

Apr.

alOS 

100 

89 

82 

79

70 

a66 

64 

64 

61

70 

82 

89 

allO 

a!30

3160 

176 

197 

191 

208

3220 

219 

202 

214 

197

236 

266 

297 

303 

291

May

323 

433 

523 

490 

a490

482 

506 

540 

498 

465

433 

441 

433 

417 

a400

4O2 

402 

387 

4O2 

394

a400 

3420 

410 

410 

441

425

417 

425 

417 

410 

402

Minimum

31 

29 

38

.. -

39 

33 

61 

323 

112 

42 

33 

31

29

June

391 

3380 

376 

361 

340

323 

344 

379 

394 

3370

327 

307 

294 

287 

281

260 

254 

242 

3240 

225

205 

3190 

173 

163 

149

142 

3140 

137 

3125 

112

Mean

40.0 

46.3 

59.0

112

40.0 

42.8 

70.4 

155 

433 

264 

64.5 

36.0 

32.9

107

July

alOO 

98 

a 100 

a98 

a94

390 

84 

78 

78 

74

a70 

366 

65

60 

60

57 

356 

a54 

a53 

52

52

351

50 

50 

47

45 

44 

44 

44 

343 

42

Per 

square

mile

0.671 

.777 

.990

1.88

.671 

.718 

1.18 

2.60 

7.27 

4.43 

1.08 

.604 

.552

1.80

Aug.

42 

42 

342 

42 

a39

37 

35 

35 

35 

335

335 

335

336 

37 

337

a36 

a35 

35 

335 

35

37 

40 

35 

33 

33

333 

333 

33 

33 

33 

333

Sept.

33 

31 

31 

332 

31

31 

333 

34 

38 

34

32 

32 

32 

333 

a33

35 

40 

35 

33 

32

32 

32 

32 

32 

33

a33 

33 

332 

31 

31

Runoff

Inches

0.77 

.87 

1.14

25.61

.77 

.75 

1.36 

2.90 

8.39 

4.94 

1.25 

.70 

.62

24.46

* Winter dischsrge measurement made on this day.

Acre-feet

2,460 

2,760 

3,630

81,420

2,460 

2,380 

4,330 

9,210 

26,650 

15,690 

3,960 

2,210 

1,960

77,700

Psyette Ri

Note.- Stage-di 

height record Ja 

ords and records

(eather records and records for South Fork

Lowman and Deadwood River near Lowman.

.ischarge relation affected by ice Nov. 16, Dec. 17-21, Dec. 29 to Feb. 11 (no gage- 

,n. 1, 8, 9, 13, 19, 27, 31, Feb. 1, 2; discharge computed on basis of weather reofor South Fork Payette River at Lowman and Deadwood River near Lowraan).
PAYETTE RIVER BASIN 175

Deadwood Reservoir near Lowman, Idaho

Location.- Staff gage, lat. 44°18', long. 115°39', In SE^ sec. 8, T. 11 N., R. 7 E., at 

dam on Deadwood River, 15 miles north of Lowman. Datum of gage is at mean sea level 

(levels by Bureau of Reclamation).

Drainage area.- 108 square miles.

Records available.- October 1935 to September 1947.

Extremes.- Maximum elevation observed during year, 5,336.35 feet May 27-2P; minimum 

observed, 5,291.0 feet Sept. 30.

1935-47: Maximum elevation observed, 5,337.1 feet June 1, 2, 1943; minimum observed, 5,260.1 feet Oct. 1, 1935.

Remarks.- Reservoir is formed by concrete arch dam, completed in 1930; storage began 

Nov. 2, 1930. Reported capacity, 160,400 acre-feet between elevations 5,230.0 feet 

(minimum operating level because of fish protection, 27 feet above sill of emergency 

gate in front of needle valve) and 5,334.0 feet (crest of spillway). Storage below 

elevation 5,230.0 feet, about 1,500 acre-feet. Water is used to augment flow of 

Payette River at Black Canyon power plant near Emmett. During late fall of 1936, 

Bureau of Reclamation cut a transmountain canal to divert a small flow of water 

from a tributary to Johnson Creek in Salmon River Basin to Deadwood River Basin 

for supplemental,storage in Deadwood Reservoir. Discharge measurements of June 11, 

and July 22 indicate flow in this canal of 21.5 and 4.42 second-feet, respectively. 

Reservoir gage read once daily about 8 a.m.

Cooperation.- Gage readings furnished by Bureau of Reclamation.

Gage height, in feet, water year October 1946 to September 1947

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

Oot.

307.4

307.1

306.9

306.7

306.5

306.3

306 . 2

306.15

306.1

306.05

306.0

305.95

306.1

306.15

306.2

306.3

306.35

306.4

306.4

306.45

306.6

306.75

306.9

307 .0

307.1

307 .25'

aCV.a

307.4

307.45

307 .6

307.65

Nov.

307.7

307.75

307.8

307.9

307.9

308.0

308.1

308.15

308.2

308.25

308.3

308.35

308.4

308.45

308.5

308 . 55

308. S

208.75

309.0

509.2

SG9.3

309.4

308. S

309.7

309.8

309.9

310.0

310.1

310.2

310.25

Deo.

310.3

310.4

310.45

310.5

310.6

310.7

310.75

310.85

310.9

311.0

311.05

311.15

311.25

311.5

311.65

311.75

311.8

311.9

311.95

312.0

312.05

312.15

312. E

312.25

312.4

312.45

312.55

312.6

312.7

312.75

312.8

Jan.

312.85

312.9

312.95

312.95

313.0

313.1

313.2

313.2

313.25

313.3

313.35

313.4

313.5

313.55

313.6

313.65

313.7

313.75

313.85

313.9

313.95

314.0

314.05

314.15

314.2

314.3

314.35

314.4

314.5

314.55

314.6

Feb.

314.7

314.8

314.85

314.9

314.95

315.0

315.05

315.1

315.15

315.2

315.25

315.3

315.4

315.45

315.5

315.55

315.6

315.7

315.75

315.8

315.85

315.9

315.95

316.0

316.05

316.1

316.15

316.2

_

-

liar.

316.25

316.3

316.35

316.4

316.45

316.5

316.55

316.6

316.65

316.7

316.75

316.8

316.85

316.9

317 .0

317.05

317.1

317.2

317.25

317.3

317.4

317.5

317.6

317.7

317.8

317.9

318.0

318.1

318.2

318.3

318.4

Apr.

318.5

318.6

318.7

318.8

318.9

319.0

319.2

319.3

319.4

319.5

319.6

319.7

319.8

319.9

320.0

320.2

320.4

320.7

321.1

321.4

321.7

322.0

322.3

322.6

322.9

025.2

323.5

323.9

324.4

324.85

-

Hay

325.3

325.9

326.6

327 .5

328.4

329.3

330.2

331.25

332.4

3o3.6

334.4

335.05

335.55

335.8

335.95

336.05

336.1

356.15

336.15

336.2

336.2

336.25

336.25

336.25

336.25

335.3

336.35

336.35

336.35

336.2

336.15

June

336.1

336.1

336.05

336.0

335.95

335.9

335.85

335.85

335.9

336.15

336.05

336.0

335.9

335.85

335.8

335.7

335.7

335.7

335.65

335.6

335.55

335.5

335.4

335.35

335.3

335.3

335.25

335.25

335.2

335.15

-

July

335.1

335.05

335.0

334.95

334.9

334.9

334.9

334.85

334.85

334.8

334.8

334.75

334.7

334.7

334.65

334.65

334.6

334.5

334.35

334.15

333.9

333.65

333.35

333.05

332.75

332.5

332.15

331.9

331.55

001.5

331.0

Aug.

330.7

330.35

330.0

329.6

329.2

328.8

328.35

327 .8

327.2

326.6

325.8

325.0

324.4

323.7

323.05

322.4

321.6

320.8

32O.O

319.2

318.4

317 .6

316.9

316.2

315.5

314.5

313.5

312.6

311.7

310.7

-

Sept.

308.9

308.0

307.2

306.6

305.7

304.85

304.0

303.25

302.5

301.6

30O.8

30O.O

299.1

298.2

297.3

296.4

295.5

294.6

293.9

293.3

292.7

292.2

291.9

291.6

291.4

291.35

291.25

291.2

291.15

291.0

-

Note.- Add 5,000 feet to obtain elevation above mean sea level.
176 PAYETTE RIVER BASIN

Deadwood River below Deadwood Reservoir, near Lowman, Idaho

Location.- Water-stage recorder, lat. 44°18 I , long. 115°39', in NE£ sec. 17, T. 11 N., 

IT! 7 E., 300 feet upstream from Wilson Creek, a quarter of a mile downstream from 

Deadwood Dam at lower end of Deadwood Basin, 15 miles north of Lowman, and 18 miles 

upstream from mouth.

Drainage area.- 108 square miles.

Records available.- October 1926 to September 1947.

Average discharge.- 20 years (1927-47), 198 second-feet.

Extremes.- Maximum discharge during year, 1,310 second-feet (regulated) Aug. 25 (gage 

height, 4.59 feet); minimum not determined, occurred during period of no g?ge-height 

record when gates in dam were closed.

1926-47: Maximum discharge, 2,150 second-feet May 26, 1928 (gage height, 5.67 

feet, site and datum then in use); small amount of leakage from reservoir for long 

periods during 1930-47 when gates in dam were closed.

Remarks.- Records good except those below 10 second-feet, which are poor. Flow reguiated since Nov. 2, 1930, by Deadwood Reservoir (see preceding page). During late 

fall of 1936, Bureau of Reclamation cut a transmountain canal to diver.t a small flow 

from a tributary of Johnson Creek in Salmon River Basin to Deadwood River Basin for 

supplemental storage in Deadwood Reservoir. Discharge measurements of June 11 and 

July 22 indicated flow in this canal of 21.5 and 4.42 second-feet, respectively.

Discharge, in second-feet, wster year October 1946 to September 1947

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

529

395

351

326

277

209

169

152

128

126

72

8

5

4

a4

a4

a4

a4

a4

a4

6

10

11

7

6

7

5

4

a4

a4

a4

Nov.

.

V a3

/

h3 1-h4

> a4

12

16

13

8

6

10

10

6

6

5

5

7

7

-

Dec.

6

6 

5

5

5

6

6

5

5

4

6

16

16

16

16

16

a

a

a

a

a

a

h

a

a

a

a

a

a

h4

a4

Jan.

I ,.

I

h4

a4

h4

a4

h4

a5

h6

1 -

Feb.

I as

h5

\ .,

1

hS

i aS

h5

a5

hS

1I a5

f

|

_

-

Month

October. ...................................

November. ..................................

December. ............. ....................

Calendar year 1946 ......................

January ....................................

February ............................. .....

March. .....................................

April ......................................

May........................................

June .......................................

July .......................................

August .....................................

September ...... .................. ... ....

Water year 1946-4? ......................

Mar.

a5

aS

h5

a5

h5

a5

h5

aS

h5

a5

hS

11 "

h5

a5

Apr.

a5

hS

a5

hS

a5

hS

 a5

-

Secondfoot-days

2,843

174

199

97,146

140

140

155

150

19,286

21,329

12 , 612

31,787

21,012

109,827

May

a6

a6 

h6

h6

a6

a6

a6

a6

a6

15

176

392

606

767

856

915

955

980

995

1,010

1,040

1,050

1,050

1,040

1,050

1,070

1,080

1,080

1,080

1,030

995

Maximum

529

16

16

1,090

1,080

995

1 9RC1

l!l20

1,280

June

970

960 

935

910

856

814

781

809

975

995

950

866

809

767

726

704

704

682

664

635

598

559

526

497

480

457

448

438

419

395

-

Minimum

4

4

6

395 220"

144

_

July

314

354 

342

328

315

304

293

28S

275

262

250

E4O

235

225

220

257

317

380

448

504

540

578

610

598

586

586

590

578

578

578

582

Aug.

586

618 

669

708

740

758

823

965

1,030

1,140

1,200

1,080

1,050

1,030'

1,040

1,060

1,140

1,180

1,160

1,170

1,150

1,100

1,030

,020

,190

,280

,200

,190

,220

,140

1,120

Mean

91.7

6.4

266

"4.5

5.0

5.0

5.0

622

711

407

1,025

700

301

Sept.

1,120

1,060 

995

955

975

990

955

92C

970

93C

885

940

965

965

965

965

895

749

682

586

529

412

351

270

191

171

152

144

156

169

~

Runoff in 

acre-feet

5,640

345

395

109 * * 7onw

278

278

307

38 1 £ 50

42,310

25 02O

63.O5O 

41,680

217,900

a No gage-height record; gates closed; discharge interpolated, or computed on basis_of weather 

records.

h Computed from staff-gage reading.
PAYETTE RIVER BASIN 

Deadwood River near Lovmian, Idaho

177

Location.- Water-stage recorder, lat. 44°05', long. 115°40', in sec. 29, T. 9 N., R. 7 E., 

YUU reet upstream from mouth and 2-J- miles west of Lowman.

Records available.- August 1921 to September 1947. 

Average discharge.- 2F ye""s, 373 second-feet.

Extremes.- Maximum discharge during year, 1,740 second-feet (regulated) May 27; maximum 

gage height, 3.68 feet Jan. 16 (ice Jam); minimum discharge, 46 second-feet (regulated) 

Nov. 2; minimum daily, 56 second-feet (regulated) Nov. 2.

1921-47: Maximum discharge, 4,230 second-feet May 9, 1928 (gage height, 5.17 feet), 

from rating curve extended above 3,200 second-feet; minimum recorded, 28 second-feet 

(regulated) Nov. 4, 1935 (gage height, 0.83 foot); minimum daily, 34 second-feet (regulated) Nov. 4, 1935.

Remarks.- Records good except those for periods of ice effect, which are fair. Flow regulated since Nov. 2, 1930, by Deadwood Reservoir (see p. 175). Small amount of water 

diverted from tributary of Johnson Creek in Salmon River Basin to Deadwood River Basin 

during year.

Rating table, water year 1946-47, except periods of Ice effect 

(gage height, In feet, and discharge, in second-feet)

1.0 46 1.6 164

1.1 58 1.8 232

1.2 73 2.0 319

1.4 112 2.3 481

2.6 674

2.9 S 3.3 i,;06

00

3.7 1,800

Discharge, in second-feet, water year October 1946

Day

1

2

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

647

568

435

412

364

310

236

232

190

186

180

82

73

73

73

73

72

72

72

73

119

139

156

106

99

112

95

87

77

80

77

Nov.

80

56

77

87

87

80

86

77

68

77

73

60

68

82

70

68

80

99

225

196

124

112

126

.24

no

110

102

102

119

119

Dec.

106

106

97

97

97

106

102

102

97

93

124

*221

310

440

359

244

150

136

160

140

134

129

122

115

117

122

114

84

} »

Jan.

).

' 80

1-

F<jb.

> 70

75

90

130

100

90

85

*84

83

82

81

85

85

85

85

85

85

85

75

_

-

Month

October. ...................................

November ......................... .........

December ...................................

Calendar year 1945 ......................

January. ................................. .

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July.. .....................................

August .....................................

September ..................................

Water year 1946-4? ......................

Mar.

70

85

84

81

79

71

82

82

81

90

93

89

89

95

108

136

170

203

232

248

257

265

282

261

236

228

221

240

257

287

287

Apr.

,

Seoondfoot-days

5,570

2,944

4,434

180,087

2,370

2,270

5,089

11,936

45,156

34,700

17,213

32,653

pp 7 CA '

187,089

269

261

248

236

218

207

196

193

190

190

183

193

236

334

440

481

512

493

493

524

542

536

518

493

493

536

606

681

724

710

to September 1947

May

732

92

1,15

1,19

1,16

1,16

1,22

1,31

1,39

4

0

0

0

0

0

0

0

1,190

1,130

1,3C

1,49

1,58

0

0

0

1,630

1,670

1,69

1,67

1,67

0

0

0

1,690

1,690

1,69

1,67

1,65

0

0

0

1,660

1,690

1,72

1,70

1,63

1,57

0

0

o

0

1,540

Maximum

647

225

440

2,020

130

287

724

1,720

1,630

696

1,330

1 1 SO »

1,720

June

,510

,520

,47O

,450

,370

,320

,260

,370

,630

,600

,530

,430

,340

,270

,200

,160

,160

,120

,080

,040

977

915

856

815

111

754

724

710

688

654

-

Minimum

72

56

5O

70

183

732

654

374

667

193

56

July

620

593

574

555

530

518

505

493

464

452

435

412

401

385

374

380

440

505

561

613

654

667

696

696

681

681

681

667

660

660

660

Aug.

1,

667

681

724

754

777

800

840

950

030

1,120

1,240

1,

1,

1,

120

070

060

1,060

1,080

1,

1,

1,

140

210

190

1,200

1,180

1,

1,

1,

120

060

020

1,170

1,330

1,

lj

1,

1,

270

210

260

L90

1,130

Mean

1ST

98.1

143

493

76.5

81.1

164

398

1,457

1,157

555

1,053

758

513

Sept.

1,150

1,090

1,050

986

986

1,000

995

959

986

1,000

933

959

995

995

995

995

977

848

761

710

633

548

440

396

291

248

236

196

193

203

-

Runoff in 

acre-feet

11,050

5,840

8,790

357,200

4.70C

4,500

10,090

23,670

89,570

68,830

34,140

64,770

45,130

371,100

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 19, 20, 24, Dec. 29 to Mar. 10 (no gageheight record Jan. 17, 19-25, Jan. 28 to Feb. 4; discharge computed on basis of weather records and 

records for other stations in South Fork Payette River Basin).
I' 8 PAYETTE RIVER BASIN

Payette Lake at McCall, Idaho

Location.- Water-stage recorder, lat. 44°55', long. 116°07' , in sec, 8, T. 18 N., R. 3 E., 

at outlet of lake on North Pork Payette River, at McCall. Datum of gage is 4,982.24 

feet above mean sea level, adjustment of 1912.

Drainage area.- 144 square miles.

Records available.- August 1921 to September 1947 (fragmentary prior to Nov. 23, 1943).

Extremes - Maximum gage Jheight during year, 8.13 feet June 18; minimum, 1.69 feet Oct. 19. 

T921-47; Maximum 'gage 'height observed, 8.75 ' 0.95 foot Oct. 3, 1931. '

feet July 13, 1935; minimum observed,

Remarks.- Plow from Payette Lake is regulated, within natural range by taintor gates and 

removable stop logs of a buttress and slab-type dam completed in November 1943. During 

period 1923 to 1943 lake was regulated by structure consisting of a series of concretefilled cribs supporting removable flashboards. Some regulation is reported to have 

been effected by timber flashboards for several years prior to 1923. Lake area is 

approximately 5,000 acres. No capacity table has been developed. Water is used for 

irrigation of lands in vicinity of Emmet t. No diversion above station.

Cooperation.- Water-stage recorder inspected by U. S. Forest Service.

height, in feet, water year October 1946 to September 1947

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.

1.86

1.88

1.87

1.86

1.87

1.83

1.82

1.81

1.80

1.78

1.77

1.77

1.75

1.74

1.73

1.72

1.71

1.71

1.70

1.72

1.78

1.87

2.01

2.07

2.12

2.24

2.30

2.34

2.37

2.39

2.40

Nor.

2.44

2.46

2.46

2.47

2.48

2.49

2.51

2.53

2.52

2.53

2.54

2.54

2.55

2.5S

2.56

2.56

2.58

2.65

2.87

3.02

3.08

3.15

3.24

3.32

3.39

3.49

3.57

3.68

3.77

3.82

-

Dec.

3.86

3.89

3.92

3.95

4.03

4.05

4.03

4.09

4.11

4.13

4.17

4.27

4.30

4.33

4.35

4.34

4.28

4.18

j401

4.07

4.04

4.00

3.95

3.86

3.76

3.66

3.55

3.40

3.26

3.14

2.98

Jan.

f2.88

f2.82

f2.76

fg.71

f2.66

f2.61

2.5S.

-

-

-

-

-

-

-

-

_

-

-

-

-

_

-

2.24

2.24

2.23

2.24

2.22

2.21

2.20

2.20

2.20

Feb.

2.22

2.22

2.21

2.19

2.17

2.16

2.16

2.15

2.13

2.12

2.11

2.16

2.19

2.18

2.17

2.17

2.16

2,15_

2.14

2.13

2.13

2.12

2.12

2.11

2.10

2.10

2.09

2.09

_

.

-

liar.

2.08

2.09

2.10

2.12

2.12

2.11

2.11

2.13

2.14

2.1?

1

2.19

2.18

2.17

2.16

2.15

2.14

2.15

2.17

2.18

2.21

2.24

2.29

2.34

2.37

2.37

2.37

2.37

2.37

2.38

2.42

2.47

Apr.

2.4#

2.49

2.51

2.51

2.50

2.50

2.49

2.48

2.48

2.52

2.56

2.60

2.65'

2.75

2.89

3.07

3.25

3.43

3.57

3.71

3.82

3.86

3.89

3.89

3.90

3.92

3.96

4.08

4.26

4.44

-

, Hay

4.50

4.72

5.19

5.66

5.93

6.12

6.32

6.64

7.02

6.83

6.29'

5.87

5.65

5.48

5.35

5.32

5.33

5.31

5.23

5.25

5.36

5.42

5.42

5.47

5.63

5.83

6.03

6.16

6.05

5.93

5.99

June

6.13

6.24

6.16

6.05

6.02

6.13

3.28

6.51

7.02

7.18

7.11

6.94

6.85

6.89

7.10

7.40

7.88

8.11

8.08

7.99

7.84

7.81

7.85

7.86

7.85

7\.85

7.88

7.86

7.78

7.71

-

July

7.70

7.69

7.70

7.70

7.70

7.76

7.83

7.90

7.92

7.97

7.98

7.99

7.99

B.OO

8.00

7.99

7.92

7.86

7.81

7.74

7.66

7.58

7.46

7.35

7.23

7.11

6.9^

6.88

6.78

6.68

6.58

A't«.

6.46

6.35

6.24

6.13

6.02

5.91

5.80

5.67

5.56

5.43

5.31

5.22

5.13

5.03

4.94

4.90

4.82

4.70

4.62

4.56

4.40

4.37

4.34

4,32

4.30

4.27

4,24

4.21

4.17

4.14

4.12

Sept.

4.09

4.06

4.05

4.03

4.00

3.97

3.98

3.97

3.96

3.94

3.92

3.89

3.87

3.84

3.75

3.6S

3.60

3.50

3.40

3.30

3.20

3.11

3.02

2.92

2.83

2.75

2.65

2.58

2.51

2.44

 -

f Gage height partly estimated.
PAYETTE RIVER BASIN 179

North Pork Payette River at McCall, Idaho

Location.- Water-stage recorder, lat. 44°54'30", long. 116°07'30", in sec. 8, T. 18 N.,

 H. 3 W., at McCall, a quarter of a mile downstream from outlet of Payette Lake.

Drainage area.- 144 square miles.

Records available.- September 1908 to June 1917, May 1919 to September 1947.

Average discharge.- 36 years (1908-16, 1919-47), 346 second-feet.

Extremes.- Maximum discharge during year, 3,470 second-feet May 9 (gage height, 6.99

 feet); minimum, 13 second-feet Nov. 22-24; minimum gage height, 1.49 feet Nov. 22-25.

1908-17, 1919-47: Maximum discharge, 4,260 second-feet June 10, 1923, maximum 

gage height, 7.5 feet June 5, 1909, June 10, 1933; practically no flow Nov. 5-8, 1931, 

Nov. 17-24, 1933, Nov. 14-27, 1935, Oct. 22' to! Nov. 11, 1938.

Remarks.- Records good except those for periods of no gage-height record, which are 

fair. Plow partly regulated by Payette Lake. Since water year 1939 some water bypassed station through',_fish hatchery (see p. 183).

Cooperation.- Water-stage recorder inspected by employee of U. S. Forest Service.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

41

44

42

41

42

37

36

34

34

32

31

31

28

28

27

26

25

24

23

23

26

27

34

60

48

50

48

48

48

49

49

Nov.

49

50

49

50

48

48

48

46

42

42

42

42-

42-

42

42

42

42

44

50

49

50

33

13

13

14

14

14

21

31

38

-

Dec.

45

50

55

63

72

84

85

92

95

99

108

181

276

283

290

280

266

253

269

298

280

269

280

368

355

424

501

457

416

376

339

Jan.

316

290

266

246

228

215

204

190

179

174

168

163

163

156

148

144

136

130

126

121

119

115

117

119

117

119

117

113

111

111

111

Feb.

113

115

113

109

108

104

102

99

97

93

93

103

108

106

106

106

102

102

100

93

97

95

93

93

92

90

90

89

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1946 ..... .............

January .................... .............

February. ..................................

March.. ....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

89

90

92

95

95

92

93

99

100

108

109

108

106

104

102

102*

104

106

109

115

121

134

146

153

156

156

156

156

161

171

184

Apr.

187

190

192

192

190

192

190

19Q 156"

46

46

49

51

54

60

84

124

171

212

253

343

457

472

470

470

470

600

780

l.OOO

1,300

-

Secondfoot-days

1,136

1,150

7,309

136 1 675

5,032

2,816

3 712

9 191

67^210

33 282 

8^650

7,131

4,541

151,160

May

1,700

2,100

2,250

2,350

2,430

2,550

2,720

3,010

3,230

3,250

2,800

2,400

2,180

2,000

1,890

1,830

1,840

1,830

1,770

1,790

1,870

1,920

1,920

1,800

1,810

1,950

2,090

2,210

2,090

1,830

1,800

Maximum

60 -

50

501

2,410

316

115

184

1,300 

3 250

1^980

443

351

270

3,250

June

1,880

1,980

1,920

1,780

1,270

1,160

1,210

1,300

1,530

1,620

1,570

1,470

1,290

800

446

312

659

1,240

1,360

^280^

1,010

595

637

733

758

758

764 764"

690

496

-

Minimum

S3

13

45

13

111

89

89

46

1,700 

312

161

71

52

13

July

443

429

429

429

273

171

166

161

163

161

163

163

163

163

161

212

269

263

260

260

294

347

347

343

347

347

347

343

343

347

343

Aug.

347

343

343

347

347

351

347

347

347

347

328

256

253

260

263

260

256

253

253 253'

189

95

93

93

90

85

84

79

76

75

Mean

35.6

3?. 3

235

374

16ic 

101

120

3015

2 , 16r*

1,109

279

230

151

414

71

Sept.

69

64

61

61

63

71

71

72

71

60

52

52

5?

54

58

80

270

270

270

270

270

265

260

255

250

240

235

230

225

220

-

Runoff in 

acre-feet

p'lnn

14, 'soo

271,100

9,980

5,590

7,360

18 230

133 3OO eeloio

17,160

ren«

9,010

299.800

Note.- No gage-height record Apr. 24 to May 4, Sept.^2-30; discharge computed on lasis of recorfled 

range in stage, records for Payette Lake, North Pork Payette River at Cascade, and Lake Pork Payette 

River above Jumbo Creek, near"McCall.
180 PAYETTE RIVER BASIN

North Fork Payette River at Cascade, Idaho

Location.- Water-stage recorder, lat. 44°31', long. 116-02', in NE£ sec. 36, T. 14 N.,

 K. 3 E., at Cascade, 285 feet downstream from Halleck and Howard mill dam, half a 

mile upstream from Beaver Creek, and 2_i miles downstream from Willow Creek. Prior 

to Jan. 28, 1947, staff gage at same site and datum.

Drainage area.- 626 square miles.

Records available.- May 1941 to September 1947.

Extremes.- Maximum discharge during year, 7,320 second-feet May 10 (gage height_, 6.29

 feet); minimum observed, 127 second-feet Nov. 13 (gage height, 0.76 foot); minimum 

daily, 170 second-feet Nov. 13.

1941-47- Maximum discharge recorded, that of May 10, 1947; minimum observed, 53 

second-feet (gates in mill dam closed) Sept. 18, 1944 (gage height, 0.40 foot); minimum daily, 68 second-feet Sept. 18, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record,

 wfiich are fair. Gage read twice daily Oct. 1 to Jan. 27. Flow regulated by Payette 

Lake (see p. 178), Lake Pork Reservoir (see p.185 ), and occasionally by Halleck and 

Howard'mill dam. Several diversions from tributaries above station for irrigation.

Cooperation.- Gage readings furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3

4 

5

6

11

13

15

16 

17 

18

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

245 

284 

345

284

a268

252

252

252

239

239

a240

221 

221

221 

215 

215

209 

a220

290 

395 

580 

495 

388

418 

a410 

366 

331 

304 

304

Nov.

310 

a290 

a250

239 

352

359

324

304

a290

a280

a280

258 

1-70

245 

271

233 

a220 

511

1,650 

1,470

894 

616 

701 

a890 

894

598 

730 

al.OOO 

1,360 

1,210

Dec.

a900 

701 

634

616

790

1,040

1,050

a900

810

770

872

1,800 

2,320

2,970 

a2 , 800

1,600 

967 

740

*790 

900

900 

920 

900 

820 

800

900 

920 

850 

700 

600 

580

Jan.

540 

450 

480

480

480

500

550

520

480

500

550

520 

480

400 

400

400 

400 

420

460 

480

460 

420 

47O 

450 

450

440 

410 

370 

380 

*390 

375

Feb.

375 

390 

400

410 

410

420

420

410

400

400

390

390 

650

675 

654

589 

571 

570

527 

503

479 

487 

519 

634 

625

562 

495 

440

Month

March. .....................................

May. .......................................

July. ......................................

September. .................................

Water year 1946-47 ......................

Mar.

375 

373 

388

402 

400

390

380

395

388

*425

535

560 

572

599 

663

731 

827 

955

1,100 

1,180

1,150 

1,220 

1,320 

1,120 

1,010

1,060 

1,110 

1,150 

1,280 

1,450 

1,660

Apr.

1,680 

1,450 

1,320

1,250 

1,120

1,040

1,040

1,060

1,120

1,190

1,140

1,110 

1,210

1,370 

1,530

1,590 

1,540 

1,630

1,610 

1,770

1,630 

1,500 

1,530 

1,510 

1,500

1,530 

1,770 

2,060 

2,280 

2,480

Secondfoot-days

17,199

9,191

434,968

May

2,580 

2,700 

3,000

3,510 

4,020

4,500

5,120

5,640

6,370

7,140

7,150

6,740 

6,280

5,720 

5,130

4,680 

4,430 

4,350

4,270 

4,220

4,190 

4,200 

4,200 

4,120 

4,190

4,100 

4,230 

4,490 

4,540 

4,490 

4,420

Maximum

1,650

431

7,150

June

4,270 

4,270

4,640 

4,470

4,050

3,360

3,320

3,840

4,360

4,110 

3,700

3,310 

2,820

2,140 

2,260 

2,650

3,080 

3,330

3,220 

2,920 

2,370 

2,020 

1,780

1,860 

1,990 

1,950 

1,910 

1,710

Minimum

197

170

July

1,380 

1,110 

1,040

848 

827

722

506

431

506

506

467

431 

402

390 

376 

402

431 

438

438 

438 

453 

482 

490

498 

498 

498 

506 

490 

482

Aug.

482 

482

490 

475

475

490

482

467

490

490

424

396

370 

370

357 

370

383 

390 

370 

316 28"7

262 

252 

237 

224

219 

215

Mean

30-!

1,192

Sept.

206 

211

219

206

202

233

267

257

228

197 

202

233

321

424

424

409 

402 

402 

409 

416

431 

431 

416 

396 

376

Runoff in 

acre-feet

9S7 n O

a ' ~r^

18,230

862.700

* Winter discharge measurement made on this day.

a No gage-height record; discharge interpolated,or computed on basis of records fo- station near 

Smiths Perry and other stations in Payette River Basin.

Note.- Stage discharge relation affected by ice Dee. 20 to Feb. 14, Feb. 28, Mar. 1, 5, 6.
PAYETTE RIVER BASIN 181

North Pork Payette River near Smiths Perry, Idaho

Location.- Water-stage recorder, lat. 44°16 I , long. 116°04", in SVf£ sec. 23, T. 11 N., 

K. 3 E., 450 feet downstream from Beaver Creek, 2| miles downstream from Tripod Creek, 

and 2 5/8 miles southeast of Smiths Perry. Datum of gage is 4,505.9 feet above mean 

sea level (levels by Bureau of Reclamation).

Drainage area.- 893 square mileSj

Kecords available.- May 1941 to October 1947 (discontinued).

Extremes.- Maximum discharge during period (October 1946 to October 1947), 8,620 secondfeet May 11 (gage height, 10.68 feet); minimum. 223 second-feet Nov. 3, 4, 14 (gage 

height, 2.71 feet).

1941-47: Maximum discharge, 9,110 second-feet June 3, 1943 (gage height, 10.70 

feet); minimum, 99 second-feet (regulated) Sept. 19, 1944 (gage height, 2.05 feet), 

from rating curve extended below 150 second-feet; minimum daily, 115 second-feet 

Dec. 11, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Plow regulated by Payette Lake (see p. ), Lake Pork Reservoir (see 

p. ), and occasionally by mill dam at Cascade. Several diversions from tributaries 

above station for irrigation.

Discharge, in second-feet, 1946-47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

284

327

360

373

348

318

307

301

298

293

287

281

293

276

273

276

270

270

270

273

327

440

604

657

537

516

516

485

430

402

392

NOV.

399

363

3P4

304

360

433

402

386

357

360

363

342

314

284

360

333

310

473

1,610

2,400

1,590

1,080

1,040

1,340

1,300

1,050

1,040

1,340

1,690

1,640

-

Dec.

1,270

1,030

*909

855

933

1,220

1,300

1,140

1,040

970

1,180

2,570

3,400

4,200

3,810

2,520

1,470

1,100

1,060

1,200

1,190

1,210

1,180

1,100

1,090

1,190

1,230

1,150

909

808

750

Jan.

650

560

600

590

6OO

630

670

670

610

620

700

630

580

500

49C

480

480

480

540

560

550

500

*550

540

540

520

480

450

450

460

450

Feb.

450

470

490

500

510

500

490

460

450

450

470

60O

750

950

1,000

950

940

940

930

840

840

800

800

850

900

860

800

660

-

-

-

Mar.

620

620

640

650

640

630

620

627

627

613

*740

770

800

820

900

960

1,130

1,260

1,480

1,670

1,710

1,770

1,980

1,650

1,430

1,500

1,590

1,650

1,860

2,000

2,210

Apr.

2,150

1,980

1,820

1,700

1,550

1,460

1,430

1,430

1,480

1,520

1,510

1,460

1,530

1,710

1,890

2,000

2,010

2,080

2,070

2,200

2,200

2,000

1,940

1,930

1,900

1,940

2,080

2,350

2,590

2,780

-

May

2,910

3,160

3,640

4,120

4,700

5,190

5,660

6,390

7,140

7,940

8,510

8,360

7,880

7,140

6,360

5,700

5,340

5,150

5,080

5,020

5,000

4,970

4,940

4,900

4,910

4,900

4,900

5,020

5,080

5,080

5,140

June

5,040

4,950

5,000

5,160

5,140

4,910

4,250

4,040

4,590

4,930

5,120

4,950

4,530

4,070

3,600

2,900

2,690

2,660

2,990

3,350

3,330

3,080

2,590

2,150

1,990

1,840

1,900

1,900

1,890

1,800

July

1,600

1,340

1,200

1,190

1,120

1,030

855

581

613

627

608

585

563

541

516

477

451

440

477

504

508

489-

470

508

525

525

520

520

520

525

516

Aug.

504

508

489

481

489

481

481

481

477

473

481

481

477

451

416

402

389

382

376

379

382

402

406

373

342

321

304

290

279

265

260

Sept.

254

249

254

257

257

251

254

260

293

321

304

290

273

254

241

254

316

379

402

433

448

440

433

433

440

448

451

451

440

423

* Winter discharge measurement made on this day.

Hote.- Stage-discharge relation affected by ice Dec. 31 to Mar. 7, Mar. 11-16 (no gage-height 

record Jan. 18-22, Jan. 28 to Feb. 11; discharge computed on basis of weather records and records 

fop North Pork Payette River at Cascade, Payette River near Horseshoe Bend, and South Pork Payette 

Ri ver at Banks).

1947

Day

Oct. 1 

2 

3

4 

5

Discharge

409 

389 

376 

370 

360

Day

Oct. 6 

7 

8 

9 

10

Discharge

348

336 

351 

363 

437

Day

Oct. 11 

12 

13 

14

Discharge

508 

590 

395 

440

Monthly discharge, In second-feet, 1946-47

Month

December. ..................................

Calendar year 1946 .......................

BaroB. .....................................

April ......................................

May. .......................................

September ..................................

Water year!946-47 ........................

October 1-14, 1947. ........................

Secondfoot-days

11,284

23,577

44,984

530,907

10,203

530,921

5,672

Maximum

2,400

4,200

6,000

451

8,510

590

Minimum

284

750

270

241

241

336

Mean

783

1,451

1,453

340

1,455

405

Runoff in 

acre-feet

_ t

89,220

1,053,000

25 230

20,240

1,053,000

11,250
182 PAYETTE RIVER BASIN

North Fork Payette River near Banks, Idaho

Location.- Water-stage recorder, lat. 44°07', long. 116°06', in SE£ sec. 16, T. 9 N., R. 

a K., 40 feet downstream from steel highway bridge, 2^ miles north of Banks, and 3 

miles upstream from confluence with South Fork. Datum of gage is 3,081.13 feet above 

mean sea level, preliminary unadjusted elevation.

Drainage area.- 933 square miles.

Records available.- April to September 1947.

Extremes.- Maximum discharge during period not determined, occurred during per-iods of 

no record; minimum, 246 second-feet Sept. 15, 16 (gage height, 4.53 feet).

Remarks.- Records excellent. Flow regulated by Payette Lake (see p.178), Lake Fork 

Reservoir (see p.185), and occasionally by mill dam at Cascade. Several diversions 

from tributaries above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day ' Oct. Dec. Apr. Hay July Aug. Sept.

h7,49<

hH,530

hE,190

h513 

499 

524 

539

539

536

524

539

562

566

558

558

554

558

547

539

543

536

528

528

521

517

517

513

510

521

521

517

488

453

426

415

409

402

396

412

422

429

399

363

338

320

300

286

273

266

263

256

256

263

266

256

261

263

292

332

320

303

284

263

251

251

303

396

426

456

481

467

464

456

464

478

481

481

474

453

Secondfoot-days

Per 

square 

mile Incl es Aore-feet

October . 

November 

December

Calendar year

January ... 

February . . 

March .....

April .....

May .......

June ......

Ju\y 17-31 

August ....

September .

8,116

13,608

10,660

566

543

481

499

266

251

541

439

355

16,100

26,990

21,140

Water year

h Computed from wire-weight gage readings.
PAYETTE RIVER BASIN 183

Fish hatchery diversion at McCall, Idaho

Location.- Staff gage and Parshall flume, _lat. 44°54'30", long. 116° 07" in sec. 8, T.

 id N., R. 3 E./'immediately below outlet from fish hatchery tanks, just above point 

of return to North Fork Payette River, and 1 mile west of McCall.

Records available.- October 1942 to September 1947.

Extremes.- Maximum discharge observed during year, 6.7 second-feet May 10 (gage height,

 1.4U feet); minimum observed, 2.1 second-feet Aug. 18-24, 26; minimum gsge height 

observed, 0.65 foot Aug. 21.

1942-47: Maximum discharge observed, that of May 10, 1947; no flow Sept. 22 to 

Nov. 7, 1943.

Remarks.- Records fair. Gage read once daily. Flow regulated by fish hatchery, water

 for which is diverted from Payette Lake or North Fork Payette River and bypasses 

gaging station on that stream.

Cooperation.- Gage readings furnished by Idaho State Fish and Game Commission.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

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

3.3

3.3

3.3

3.3

3.3

3.2

3.2

3.2

3.2

3.4

3.3

3.3

3.3

3.3

3.3

3.3

3.3

Nov.

3.3

3.3

3.3

3.3

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.3

3.4

3.4

3.3

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.3

3.3

3.3

3.3

3.3

-

Dec.

3.3

3.3

3.3

3.3

3.3

3.4

3.3

3.3

3.4

3.4

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

Jan.

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.5

3.5

3.5

3.5

3.

3.

3.

3.

3.

3.

3.4

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.2

3.2

Feb.

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.1

3.1

3.2

3.2

3.1

3.1

2.8

2.8

2.8

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1946 ......................

January- ...................................

February ...................................

March. .....................................

April................ ......................

May. .......................................

June - -........----.-.--. .

July 

Augu 

Sept

St............... ......................

ember. .................................

Water year 1946-47 .....'.................

Mar.

2.8

2.7

2.8

2.8

2.8

2.7

2.7

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.9

2.9

3.0

3.0

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

Apr.

3.1

3.1

3.1

3.1

3.1

3.2

3.2

3.2

3.1

3.1

3.0

3.0

3.0

3.1

3.1

3.2

3.3

3.3

3.3

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.5

3.6

-

Secondfoot-days

102.0

100.9

108.9

1,025.9

105.7

88 .0

97 3

124.1

100.2

81.9 

73.7 

74.6

1,147.1

May

3.6

3.7

3.8

.8

.0

.0

.3

.6

.6

.7

.3

.6

.0

.0

.9

.9

.8

3.8

3.7

3.6

3.6

3.6

3.6

3.6

3.7

3.8

3.8

3.7

3.7

3.7

3.6

Maximum

3.4

3.4

3.6

4.1

3 . 6

3 2

3.6

6.7

3.6

3.0 

2.7 

2.6

6.7

June

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.4

3.4

3.4

3.4

3.6

3.3

2.8

2.8

3.0 3.0"

3.0

3.1

3.1

3.1

3.0

3.0

3.0

Minimum

3.2

3.3

3.3

2.0

3. 2

2.8

2.7

3.0

3.6

2 8 

2.2 

2.1 

2.3

2.1

July

3.0

2.9

2.9

2.9

2.7

2.8

2.9

2.9

2.8

2.8

2.8

2.7

2.7

2.7

2.6

2.6

2.6

2.6

2.7

2.6

2.4

2.2

2.4

2.3

2.4

2.4

2.4

2.5

2.5

2.6

2.6

Aug.

2.7

2.7

2.6

2.6

2.6

2.6

2.6

2.6

2.7

2.7

2.7

2.6

2.6

2.2

2.3

2.2

2.2

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.2

2.1

2.3

2.3

2.3

2.3

2.3

Mean

3.29

3.36

3.51

2.81

3.41

3.14

2.90

3 . 24

4.00

3 . 34 

2! 64 

2.38 

2.49

3.14

Sept.

2.3

2.3

2.3

2.4

2.4

2.4

2.3

2.4

2.4

2.4

2.5

2.6

2.6

2.6

2.4

2.4

2.4

2.4

2.6

2.5

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

Runoff in 

acre-feet

202

2OO

216

2,040

210

175

178

193

246

199 

162 

146 

148

2,280
184 PAYETTE RIVER BASIN

Lake Fork Payette River above Jumbo Creek, near MeCall, Idaho

Location.- Water-stage recorder, lat. 44°55', long. 115°59', in NE£ see. 8, T. 18 N., 

K. 4 E., 200 feet upstream from bridge at abandoned power plant, a quarter of a mile 

upstream from Jumbo Creek, 3| miles upstream from Lake Fork Reservoir dam, and 5j 

miles east of MeCall.

Drainage area.- 48.9 square miles.

Records available.- October 1945 to September 1947.

Extremes.- Maximum discharge during year, 1^570 second-feet May 7 (gage height, 8.19 

reet); minimum, 14 second-feet Sept. 7.

1945-47: Maximum discharge, that of May 7, 1947; minimum observed, 14 second-feet 

Oct. 15, 16, 1945, Sept. 7, 1947.

Remarks - Records good except those for periods of ice effect or no gage-heig'it record, 

which are fair. No diversion above station.

Rating table, water year 1946-47, except periods of ice eff»r.t 

(gage height, in feet, and discharge, in second feet) 

(Shifting-control method used Jan. 29 to Mar. 18)

2.2 

2.4 

2.7 

3.0 

3.5

4.0 

4.5 

5.0 

5.5

6.0

102

144

204

289

405

6.5 570

7.0 788

7.5 1,080

7.9 1,310

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

4

b

6

8

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

22

25

21 

21 

20 

20 

19

18 

18 

17 

18 

22

63 

122 

102 

68 

93

156 

90 

*74 

62 

62 

58

Nov.

57

b48

53

48

46

43 

45 

b44 

44 

40

41 

41 

60 

133 

86

69 

64 

88 

78 

68

66 

71 

88 

90 

78

Dec.

70

64

62

62

62

66

60

59

56

55

67 

*79 

111 

148 

123

87 

b35 

b41 

b56 

50

50 

50 

45 

45 

45

45 

45 

b40 

b40 

b40 

b40

Jan.

40

35

35

40

40

40

40

40

40

40

40 

38 

38 

38 

35

38 

38 

38 

38 

33

38 

38 

38 

33 

38

38 

34 

27 

*34 

33 

32

Month

December ......................

July ..........................

September .....................

Water year 1946-47 ..........

Feb.

32

33

32

32

32

»b30

b29

b28

b27

30

29 

34 

44 

38 

37

37 

36 

35 

b33 

b29

35 

34 

34 

35 

35

34 

33

32

Secondfoot-days

1,413

1,837

1,898

G-* 7PQ

'

598

60,177

Mar.

34

35

34

34

32

b30

*33

33

32

33

32 

31 

31 

33 

36

41 

48 

56 

63 

71

76 

85 

84 

76 

73

71 

70 

75 

82 

95 

90

Maximum

156 issue

OUb

33

1,310

Apr.

85

81

78

75

71

69

66

66

64

64

62 

64 

77 

113 

163

187 

216 

203 

194 

224

206 

193 

189 

178 

214

268 

344 

456 

537 

495

May

502

906

1,160

1, 100

1,030

1,060

1,220

1,310

1,270

778

613 

590 

617 

574 

597

638 

654 

613 

617 

707

730 

711 

693 

739 

819

862 

890 

788 

646 

630 

778

Minimum

17

40

35

15

15

June

783

702

613

590

508

609

563

778

862

625

502 

488 

508 

491 

522

659 

819 

646 

586 

465

368 

360 

368 

394 

397

389 

397 

293 

179 

198

Mean

45.6

61.2

61.2

19.9

165

July

238

259

263

237

222

221

203

169

153 

134 

123 

118 

111

103 

94 

88 

82

78

73 

75 

71 

66 

62

60 

57 

55 

53 

52 

50

Per 

square 

mile

0.933

1.25

1.25

.407

3.37

Aug.

43

37

33

32

31 

30 

29 

27

26 

25 

23 

22

26

29 

25 

26 

23 

21

19 

19 

18 

21 

17 

16

Sept.

15

32

24 

21 

19 

18 

17

20 

29 

25 

22 

20

19 

18 

17 

16 

16

20 

18 

17 

16 

15

Runoff

Inches

1.07

1.40

1.44

.45

45.75

Acre-feet

2,800

3,640

3,760

' Qon

1,190

119.400

» Winter discharge measurement made on this 

b Stage-discharge relation affected by ice. 

Note.- No gage-height record Dec. 20-27, Ja

nd records for Johnson Creek near Yellowpine

riot Canal.

day.

i. 1-28; discharge computed on basis of weather records 

and Lake Pork Payette River below Lake Irrigation Dis-
rdYETTE RIVER BASIN 18b 

Lake Fork Reservoir near MeCall, Idaho

Location.- Staff gage and graduations on concrete gate-control structure of dam on Lake 

 ForJTTayette River, lat. 44°54', long. 116°03', in NW^NW-J- sec. 13, T. IK N., R. n 

E., 3 miles east of MeCall. Datum of gage Is at mean sea level (levels ly Lake Irrigation District).

Records available.- April 1926 to September 1947.

Extremes.- Maximum contents observed during year, 19,300 acre-feet June 29 (elevation, 

5.11H.48 feet); probably no storage at times during fall and winter.

1926-47: Maximum contents observed, 19,740 acre-feet June 19, 1941 (elevation, 

5,118.75 feet); probably no storage ab6ve elevation 5,101.0 feet during fall and 

winter of most years.

Remarks - Reservoir is formed by earth- and rock-fill dam completed in 1926. Capacity, 

16,940 acre-feet between elevations 5,101.0 feet (lower limit of capacity table, 4.0 

feet above gate sill of outlet) and 5,117.0 feet (top of flashboards, 5.0 feet above 

spillway crest). Dead storage unknown. Water is used for irrigation of about 6,800 

acres of land in vicinity of Norwood. Figures given herein represent contents above 

5,101.0 feet. There Is some usable storage below elevation 5,101.0 feet, but natural 

flow passing through reservoir when outlet gates are operating prevents withdrawal of 

storage to elevation of sill of £,ates. Gage read once (Jaily. Time of reading variable. Storage figures from gage heights as observed.

Cooperation.- Elevation record and capacity table furnished by Lake Irrigation District.

Contents, in acre-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6,769

Nor. Dec.

7,147

Jan. Feb. Mar. Apr. May

16,270

June

.

_

-

_

-

.

-

-

_

18,130

_

-

-

-

-

_

-

_

-

-

.

_

-

18,170

18,240

18,440

18,770

19,090

19,300

18,850

-

July

18,200

18,520

18,650

18,720

18,680

18,670

18,640

18,590

18,520

18,360

18,200

18,060

17,920

17,710

17,520

17,190

16,910

16,550

16,270

15,930

15,570

15,230

14,860

14,490

14,080

13,770

13,340

13,040

12,640

12,270

11,940

Aug.

11,600

11,220

10,860

10,530

10,070

9,810

9,436

9,108

8,838

8,541

8,190

,990

,739

,525

,122

,895

,652

,395

,174

,838

,606

,394

,150

,938

,758

,547

,359

,182

,024

,801

,eao

Sept.

3,518

3,372

3,226

3,088

2,919

2,815

2,722

2,644

2,588

2,553

2,539

2,504

2,455

2,392

2,329

_

-

-

-

-

_

_

-

_

1,989

.

-

_

_

-

- .. .

Monthly elevation and contents, water year October 1946 to September 1947

Date

June 30 ...................

Elevation 

(feet)

5,118.20 

5,113.75 

5,107.07

Contents 

(acre-feet)

16,850 

11,940 

3,680

Change in contents 

during month 

(acre-feet)

-6,910

-8,260

881401 O - 50 - 13
185 PAYETTE RIVER BASIN

Lake Fork Payette River below Lake Irrigation District Canal, near McCall, Idaho

Records available.- October 1940 to September 1947.

Extremes.- Maximum discharge during year, 1,520 second-feet May 9 (gage height. 6.39 

reet); minimum, 11 second-feet (regulated) Sept. 11 (gage height, 2.36 feet).

1940-47; Maximum discharge, that of May 9, 1947; minimum, 0.4 second-fcot (regulated) Mar. 27, 28, 1944; minimum gage height, 1.76 feet Mar. 28, 1944.

Remarks. - Records good except those for .Sept. 8-30, which are fair. Plow regelated by 

Lake Fork Reservoir (see preceding page). Lake Irrigation District Canal t?iverts 

abotfe station.

Rating table, water year 1946-47, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

2.4

2.5

2.6

2.7 

2.9

3.1 

3.3 

3.6 

4.0 

4.4

110

170

276

418

5.0 

5.6

6.4

690

1,000

1,460

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

31

32

32

33

31

31

31

31

31

30

30

30

30

30

30

30

30

30

30

30

32

33

33

33

33

33

33

33

32

32

32

Nov.

32

31

31

31

32

32

32

31

31

31

32

31

33

32

33

 32

33

37

" 43

43

41

37

40

39

38

37

38

42

43

42

-

Dec.

41

44

135

267

267

264

259

256

253

247

247

*247

244

244

244

242

234

228

225

223

217

212

207

202

194

180

175

163

152

148

146

Jan.

142

140

136

130

126

119

114

108

103

98

95

92

87

84

81

78

74

70

68

65

61

60

59

58

56

55

54

b52

51

a 50

a49

Feb.

348

347

346

a45

344

*43

b42

b41

b41

b40

40

41

42

43

43

44

44

44

44

44

44

-43

43

49

52

52

51

b49

-

_

-

Month

October. ...................................

November ...................................

December. ...................................

Calendar year 1945 ......................

January. ...................................

February. .................................

March. .....................................

April .......... ...........................

June .......................................

^August

September ..................................

Water year 1945 47 ......................

Mar.

48

48

48

48

47

b44

44

*44

44

46

46

47

44

43

43

43

44

49

se

56

61

68

74

78

81

81

82

84

86

90

95

Apr.

96

98

100

100

100

100

100

98

98

96

96

96

96

100

108

119

130

138

81

21

21

21

21

21

21

21

22

23

24

24

Secondfoot-days

972

1,060

6,407

51,030

2 , 615

1, 249

2^190

21 877

12J231

2 , 365

2,127

743

55,644

May

24

27

214

700

1,070

1,090

1,150

1,300

1,420

1,220

945

795

740

680

640

645

665

675

635

602

588

476

598

529

570

621

730

765

650

552

561

Maximum

33

43

267

852

142

52

95

138

1,420

795

90

82

55

1,420

June

690

795

730

680

476

422

353

357

621

680

579

395

328

239

234

305

538

575

542

498

406

364

279

215

177

146

172

184

159

92

Minimum

3

3

4

1

4

4(

^

2

2

9

3

gc

1

1

July

49

39

50

67

72

72

70

71

74

87

72

67

75

86

86

81

80

78

84

87

82

82

84

84

88

90

84

81

84

81

78

Aug.

81

82

81

80

78

80

82

80

74

72

72

71

71

65

63

61

63

63

61

63

64

65

67

85

63

61

61

60

60

59

59

Mean

3 31.4

1 3*5.3

L 207

3 140

3 84.4

3 44.6

5 58.3

L 73.0

I 706

> 4C8

3 76.3

3 68.6

> 24.8

> 1E2

Sept.

55

49

48

47

43

40

41

37

31

315

12

12

12

12

13

16

17

17

18

18

19

19

ISi:is

19

19

19

319

a!9

-

Runoff in 

acre-feet

1,930

2,100

12,710

101,200

5,190

2,480

3,590

4,340

43,390

24,260

4,690

4,220

1,4"70

110,400

* Winter dischsrge measurement made on this day.

a No gage-height record; discharge interpolated, or computed on basis of range in stage, weather 

records, and records for station above Jumbo Creek, Johnson Creek at 5fellowpine, and Lake Irrigation 

District Canal.

b Stage-discharge relation affected- by Ice.
PAYETTE RIVEF BASIN ib ' 

Lake Irrigation District Canal near McCall, Idaho

Location - Staff gage, lat. 44°54', long. 116°03', in SWi sec. 13, T. 18 N., R. 3 E., 600 

reet aownstream from head of canal, half a mile south of Lake Fork Reservoir, and 

3 miles east of McCall. Prior to May 1947. staff gage at same site at different datum.

Records available.- May 1926 to September 1947.

Extremes.- Maximum discharge observed during year, 176 second-feet June 7, 8 (gage height, 

a.a reet)- no flow for long periods.

1926-47: Maximum discharge observed that of June 7, 8, 1947; no flow or small 

amount of leakage through head gate during nonirrigation seasons.

Remarks.- Records good except those for periods of no gage-height record, which are poor, 

tjtarr gage read once or twice daily. No diversion between head and station. Canal 

diverts from right bank of Lake Pork Payette River in SW^ sec. 13, T. 18 N., R. 3 E., 

for irrigation of 6,800 acres of land near McCall and Norwood, in the Lak9 Irrigation 

District project.

Cooperation.- Gage readings furnished by Lake Irrigation District.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

Z

3

4

5

6

7

8

9

10

1.1

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

December. ..................................

Calendar year ......................

July

Augu 

September. .................................

Water year 1946-47 ......................

Mar. Apr.

Secondfoot-days

0

-

0

0

0

0

1,206

3,699

5,077

2,809 

808.4

13,599.4

May

0

o

o

> a2

2.0

> a2

68

102

109

109

125

125

125

125

141

141

Maximum

3

-

0

0

0

0

141

176

173

141 

49

176

June

99

0

0

0

104

158

176

176

125

121

122

95

13Z

149

149

146

143

141

125

125

137

143

147

145

126

133

141

145

146

149

-

Minimum

0

0

-

0

0

0

0

0

0

142

42

0

July

156

165

168

169

167

168

169

164

162

166

164

162

161

165

168

171

172

173

171

170

170

171

171

168

165

160

151

149

152

147

142

Aug.

141

139

138

137

136

133

123

115

112

101

94

89

88

89

91

91

91

90

88

85

82

78

73

53

56

53

L 50 r 49

48

44

42

Mean

0

0

-

0

0

0

0

38.9

123

164

90.6 

26.9

37.3

Sept.

42

42

42

44

48

49

49

44

39

33

24

30

33

32

32

a 30

[ «

5.

1

I

/

-

Runoff in 

acre feet

0

0

-

0

0

0

0

2,390

7,340

10,070

5,570 

1,600

26,970

 ight record; discharge interpolated, or computed on basis of inflow-outflow study of 

irvoir, record of gate changes, and records for Lake Fork Payette River below Lake Irrlt: PanAl

a Ho gage -hel 

Lake Fork Reser._., .. 

gatlon District Canal.

fruzen Canal at Lake Pork, Idaho 

Location.- Staff gage, lat. 44°50', long. 116°04;, in NE^ sec. 3, T. 17 N., R 3 E., 500

reet Delow head gates and 1 mile northeast of town of Lake Pork. 

Records available.- August 1938 to September 1947 (fragmentary).

Kemarks.- Kecords good. Staff gage read once or twice daily. Plow regulated at head gate 

or canal. No diversion between head and station. Canal diverts water from right bank 

of L^ike Fork Payette River in NE^ sec. 3, T. 17 N. , R. 3E., for irrigation. Discharge 

measurements of 2.96 and 9.83 second-feet made on Oct. 28, May 8, respectively. 

Cooperation.- Gage readings furnished by Lake Irrigation District.

Monthly discharge, 1946-47

Month

May 22 31

July............. ............

September. ....... ............

The period. ..... 

Maxiipum

42

-

Minimum

16

15

12

-

Mean

38.5

20.5

-

Runoff in

acre-feet

676

2,290

3,O90

3,000

1,220

10,280
188 WEISER RIVER BASIN

Weiser River at Tamarack, Idaho

Location.- Staff gage, lat. 44*57', long. 116°23' , in sec. 30, T. 19 N., R. 1 E.-, 0.4 

mile southeast of Tamarack.

Drainage area.- 36.5 square miles. /

Records available.- September 1936 to September 1947.

Average discharge.- 11 years, 40.2 second-feet.

Extremes.- Maximum discharge observed during year, 346 second-feet Dec. 14 (gage height, 

4.UU reet); minimum observed, 1.0 second-feet Sept. 2 (gage height, 0.55 foot).

1936-47: Maximum discharge observed, 775 second-feet Mar. 27, 1940 (gage height, 

6.00 feet); minimum observed, that of Sept. 2, 1947.

Remarks.- Records fair except those for periods of backwater from beaver dams, doubtful 

or no gage.-height record, and periods when gage readings are not represertative of 

mean for the day, which are poor. Gage read once daily. No diversion atove station. 

Diurnal fluctuation caused by mill pond at Tamarack. Small flow from Boi'lder Creek 

in Salmon River Basin enters Weiser River above station through transmourtain diversion during late irrigation season.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

fi

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6.5

a6.0

5.5

5.5

5.5

a5.5

a5.5

e5.5

a5.5

e5.5

a5. 5

e5.5

a5.5

a5.5

e5.5

a5.5

a5. 5

65.5

65.5

65.5

a8.0

ell

15

e!5

e!5

14

elZ

alO

9.2

a9.0

8.6

Nov.

a9.0

7.4

8.0

a .5

.4

a. .4

.4

a .4

.4

.4

.4

a .4

a .4

4

a .7

8.0

8.0

44

a!40

(5120

94

64

63

76

(565

a60

alOO

a!30

151

144

-

Dec.

137

a90

a65

a65

128

allO

104

a90

85

a70

102

146

276

346

338

296

144

a!30

125

a95

78

d75

a65

d60

a60

(160

(360

d5_5

d50

48

46

Jan.

a48

4O

a50

d33

d35

a37

37

d30

28

a26

24

22

a22

22

21

aZl

21

21

22

aZl

21

21

21

20

19

19

a!8

18

18

17

17

Feb.

17

17

14

13

13

13

13

13

13

a!3

13

15

a!7

19

28

30

3&

a40

44

54

52

52

50

a50

50

47

44

41

_

_

-

Month

December. ...................................

Calendar year 1946 ......................

March. .....................................

April.. ....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

39

39

a37

35

33

35

33

34

34

34

a35

33

32

51

78

84

101

120

162

170

186

200

186

178

143

133

a!30

129

124

165

180

Apr.

173

170

160

140

135

129

107

101

101

97

93

d90

109

113

a!25

131

162

a!60

153

146

132

119

114

112

104

102

106

113

alls

112

-

Secondfoot-days

3,599

21,939.0

3 723

200.8

16,061.9

May

103

99

103

98

88

78

71

170

71

71

64

56

50

49

37

35

d30

d25

22

22

22

22

21

20

19

19

18

d!6

d!4

a!3

15

Maximum

346

580

8.5

346

June

a!6

15

d!4

a!5

d!4

d!3

(312

al8

a26

a23

22

19

19

19

19

18

19

19

19

al8

16

15

15

a!5

15

a!5

17

15

13

13

-

Minimum

46

4.5

90

3.4

3.4

July

13

a!2

11

11

11

10

a9.0

C8.0

a7.0

06 5

a6.5

6.5

6.8

6.5

a6.0

6.0

6.0

06.0

06.0

a6.0

C6.0

06.0

36.0

06,0

05. 0

05. 0

05.0

a5.0

65.0

as.O

a5.0

Aug.

6.5

a5.5

5 5

5.5

6.0

a6.5

6.8

5.5

6.8

6.0

a6.0

6.0

6.0

5.5

6.5

a6.8

7.1

a6.5

6.0

6.2

7.1

a6.5

6.2

a6.5

a6.5

7.1

a6.0

5.5

a5. 5

5.5

5.8

, Mean

116

60.1

29 3

£.69

44.0

Sept.

a5.8

3.4

6.0

a6.0

a6.0

6.8

8.3

a8.5

a8.3

8.3

aT.S

36.5

6.0

6.0

36.5

7.1

a7.5

8.3

37.5

6.8

6.8

a6.5

6.2

a6.0

36.0

6.2

6.2

6.8

36.5

S6.5

-

Runoff in 

ao re-feet

7,140

43,520

398

31,860

a No gage-height record; discharge interpolated, or computed on basis of weather records and records for other stations on Weiser River.

o Backwater from beaver dams; discharge computed as explained in footnote a.

d_ Doubtful gage-height record) discharge computed as explained in footnote a.

e Gage readJLng not reBresentative of mean for the day because of diurnal fluctuation; discharge con 

puted as explained in footnote a.
WEISER RIVER BASIN 189

Weiser River at Starkey, Idaho

Location.- Water-stage recorder, lat. 44°51 r , long. 116°27', in sec. 34, T. 18 N., R. 1 

W., at Starkey Hot Springs, 200 feet upstream from Warm Springs Creek and 10 miles 

north of Council.

Drainage area.- 106 square miles.

Records available.- August to September 1920, March 1939 to September 1947.

Extremes.- Maximum discharge during year, 771 second-feet Nov. 19 (gage height, 4.28 

feet) ; minimum, 13 second-feet Aug. 27, Sept. 3; minimum gage height, 1.39 feet 

Sept. 3.

1920, 1939-47: Maximum discharge, 2,450 second-feet Mar. 27, 1940 (gage height, 

6.00 feet), from rating curve extended above 700 second-feet by logarithmic plotting; 

minimum, 8.0 second-feet Aug. 31, 1939, Aug. 23, 1940; minimum gage height, 1.04 feet 

Aug. 31, 1939.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

fair. Diurnal fluctuation at low flow caused by mill pond at Tamarack. Several small 

diversions from river and tributaries above station.

Rating tables, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Apr. 17 Apr. 18 to Sept. 3O

1.7

1.8

1.9

2.0

2.1 

2.3

Note.- Same as following table above 2.3 feet.

1.9

2.1 

2.3 

2.5 

2.7

79

113

155

3.0 

3.4 

3.8 

4.2

238

378

541

729

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

28

26

27

28

29

30

31

Oct.

23

32

26

23

20

20

31

26

31

29

27

28

26

27

26

26

27

27

28

30

47

59

60

45

46

48

40

35

34

34

32

Nov.

35

25

26

32

32

32

34

32

29

32

30

28

26

31

28

25

31

94

519

378

223

165

241

273

220

191

241

378

433

363

Dec.

287

232

194

183

197

273

267

241

211

186

214

308

478

674

704

541

394

a290

a260

214

200

178

153

137

127

123

123

89

85

a82

a78

Jan.

a82

a68

a60

a65

87

100

102

79

79

84

79

72

68

65

58

65

54

53

63

60

59

55

58

59

58

55

46

36

52

47

41

Feb.

48

50

44

42

43

41

41

41

40

43

43

85

144

125

117

123

131

137

133

125

125

119

123

137

137

131

125

109

_

_

-

Month

December. ..................................

Calendar year 1946 ......................

Hay

July.......................................

September. .................................

Water year 1946-47 ......................

Mar.

1O4

108

99

1OO

90

82

85

84

84

102

121

115

111

119

140

183

254

329

398

429

433

457

445

401

351

333

308

301

311

378

401

Apr.

386

378

359

333

301

277

251

235

226

214

205

200

214

264

340

390

409

409

394

398

370

344

326

304

297

308

336

363

398

398

-

Second 

foot-days

7,723

60,578

2 009

523

586

46,806

May

367

394

441

425

386

355

348

326

378

322

273

£60

270

238

211

197

186

175

168

160

151

146

137

135

135

135

137

123

97

95

109

Maximum

704

1,290

409

23

24

704

June

115

111

100

106

99

99

93

137

186

162

151

131

121

111

104

109

113

1O8

97

90

82

76

81

81

81

82

81

62

57

53

-

minimum

20

78

13

14

14

July

51

47

43

42

39

37

37

37

34

33

28

28

28

23

24

24

23

22

22

24

24

24

24

23

21

21

22

21

18

18

19

Aug.

19

19

23

16

18

17

17

17

16

18

17

17

17

17

16

16

16

16

16

17

17

17

17

18

15

16

15

15

15

16

17

Mean

32.7

249

166

19.5

188

Sept.

16

15

14

17

16

16

24

24

22

21

20

19

19

18

18

20

22

22

22

21

20

20

20

19

20

21

20

20

20

20

-

Runoff in 

ao re-feet

2,010

15,320

120,200

5,160

1,160

93,830

No gage-height record; discharge computed on basis of weather records and records fe" other 

stations on Weiser River.
190 WEISER RIVER BASIN

Weiser River near Council, Idaho

Location - Water-stage recorder, lat. 44°41', long. 116°29', in sec. 29, T. 16 N., 

K. 1 W., 0.7 mile downstream from Cottonwood Creek, 2 miles upstream from Middle 

Fork, and 3£ miles southwest of Council.

Drainage area.- 390 square miles.

Records available.- April 1937 to September 1947.

Average discharge.- 10 years, 406 second-ieet.

Extremes. - Maximum discharge during year, 2,050 second-feet Feb. 13 (gc.ge height, 5.77 

reet); minimum, 38 second-feet July 14 (gage height, 0.71 foot

1937-47: Maximum discharge, .6,700 second-feet Mar. 16 or 17, 1938 tgage height, 

7.6 feet, from floodmark, site and datum then in use), from rating curve extended 

above 3,500 second-feet; minimum, 22 second-feet June 29, 1940.

Remarks.- Records good except those for periods of ice effect, which are fair. Flow 

partly regulated by Lost Valley Reservoir (see .p. 193) and other reservoirs. Many 

diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

50

64

62

57

56

55

56

57

58

57

56

56

56

56

55

55

57

56

57

60

84

112

136

102

96

100

93

84

76

78

77

Nov.

88

72

62

69

72

75

76

72

69

72

71

68

63

70

06

58

69

162

1,180

981

484

386

858

764

571

652

1,290

1,450

1,280

96C

-

Dec.

751

611

518

503

639

854

733

707

635

 544

607

768

1,050

1,450

1,530

1,260

925

782

711

599

540

469

412

369

347

335

369

374

261

223

216

Jan.

225

182

147

157

176

214

211

220

192

186

184

176

b!65

b!55

b!45

b!40

b!40

b!40

b!55

168

158

157

151

155

157

188

166

b!25

142

136

b!25

Feb.

136

149

157

145

 151

147

145

147

151

142

138

576

1,490

814

773

800

814

737

631

556

525

495

503

529

506

462

434

37f<

_

_

-

Month

December ...................................

Calendar year 1946 ......................

March..... .................................

April. .....................................

May. .......................................

July. ......................................

September ..................................

Water year 1946-47 ......................

Mar.

341

350

347

341

309

279

282

301

338

868

742

615

552

544

575

660

809

945

1,040

1,070

1,060

1,120

1,140

1,010

900

840

773

742

746

872

940

Apr.

886

876

836

778

720

664

603

571

552

518

495

477

499

587

742

840

895

915

905

915

863

818

782

729

707

720

768

840

915

940

-

Seconofoot-days

19,992

184,439

1,940

133,820

May

910

1,010

1,150

1,180

1,130

1,100

1,080

1,080

1,220

1,040

863

845

858

778

702

599

552

518

503

473

451

423

386

369

366

366

369

335

287

277

321

Maximum

1,530

3,010

1,490

91

1,530

June

344

341

338

357

332

324

306

451

611 518-

459

402

376

344

315

324

382

318

290

272

264

261

254

239

223

211

227

214

196

182

-

Minimum

50

58

216

37

125

136

279

64

48

40

July

162

147

131

121

116

J.06

95

76

61

55

48

43

40

43

66

78

78

72

71

75

85

80

84

85

85

85

84

86

88

84

80

Aug.

70

72

75

76

71

70

70

71

72

71

72

75

75

75

75

73

72

72

71

70

71

70

73

72

71

70

66

65

65

64

66

Mean

7C.1

64f

50F

45]

745-

64.7

367

Sept.

68

65

65

69

65

69

81

91

88

89

86

88

86

84

64

51

56

55

57

56

55

51

50

49

48

50

51

51

51

51

-

Runoff in 

acre feet

4,310

39,650

365,800

25,060

44,340

3,850

265,400

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
WEISER RIVER BASIN 191

Weiser River near Cambridge, Idaho

Location.- Water-stage recorder, lat. 44°35', long. 116°38 I , in NEij sec. 1, T. 14 N.. R. 

3 W., 2t miles northeast of Cambridge and 2^ miles upstream from Rush Creek.

Drainage area.- 605 square miles.

Records available.- March 1939 to September 1947.

Extremes.- Maximum discharge during year, 3,360 second-feet Nov. 27; maximum gage height, 

V.lB reet Feb. 12 (ice jam); minimum discharge, 43 second-feet (regulated) Aug. 1 

(gage height, 0.87 foot); minimum daily, 61 second-fee.t Sept. 5, 6.

1939-47: Maximum discharge, 6,670 second-feet Mar. 31, 1940 (gage height, 8.30 

feet); minimum, 23 second-feet (regulated) Oct. 1, 1943 (gage height, 0.78 foot); 

minimum daily, 27 second-feet Sept. 2, 3, 1940.

Remarks.- hecords good except those for periods of ice effect, or no gage-height reco 

which are fatr>. Flow partly regulated by Lost Valley Reservoir (see p. 193) and o 

reservoirs. Diversions above station for irrigation.

Rating table, water year 1946-47, except period of Ice effect

(gage height. In feet, and discharge. In second-feet)

(Shifting-control method used July 1 to Sept. 3o)

>rd, 

other

i.o 

1.2

1.5 

1.8

126

183

2.1 252

2.5 372

2.9 530

3.3 736

4.0 1,170

5.0 1,910

6.0 2,820

Discharge, in second-feet, water yeur October 1946 to September 1947

Day) Oct .

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

72

87

96

88

85

83

83

87

86

88

88

87

88

87

87

83

85

86

83

90

124

185

260

169

155

159

146

130

116

118

115

Nov.

liC

lib

101

106

112

116

123

116

108

112

113

107

101

108

108

98

104

208

1,630

1,450

766

602

1,300

1,250

885

1,100

2,430

2,720

2,190

1,550

-

Dec.

1,180

969

825

789

927

,370

,130

,08C

,OOO

867

,230

,780

2,020

2,750

2,430

1,880

1,390

1,170

1,090

921

837

736

643

582

539

530

617

43'

069

346

308

Jan.

333

279

a210

a220

a245

288

a285

a300

a27O

a265

a26O

a25O

240

230

213

194

198

191

220

237

232

216

213

218

230

242

268

194

216

213

185

Feb.

187

213

225

204

202

*206

2OO

202

202

213

216

b650

b2,600

,640

,320

,310

,330

,190

,010

867

813

760

74fl

783

742

675

643

549

_

-

Month

December. ..................................

Calendar year 1946 ......................

M»v

September ..................................

Water year 1946 47 ......................

Mar.

508

530

526

568

49O

ij.0

437

453

521

1,600

1,320

1,050

915

861

879

957

,110

,270

,370

,420

,410

,460

.540

,350

,220

,140

,060

,010

,010

,140

,260

Apr.

1,180

1,170

1,140

1,060

982

915

843

813

795

754

a700

a68o

a75O

h867

al,150

al,280

al,360

al,410

al,380

al,440

al,36O

hi, 320

al,300

al,150

al,lOO

al,100

al,250

hi, 460

al,550

al,600

Secondfoot-days

3,396

19,962

32,739

297,436

2,157

219,258

May

al,500

al,700

a2,100

a2,2oO

h2,110

1,960

2,050

2,070

2,300

1,930

1..62O

1,590

1,690

1,500

1,400

1,300

1,230

1,150

1,120

1,100

1,070

1,030

945

915

915

915

915

867

736

680

789

Maximum

260

2,720

2,750

4 , 050

333

88

2,750

June

813

813

789

777

719

714

664

939

1,340

1,130

1,010

885

813

748

675

669

807

680

602

554

490

437

396

369

339

320

362

324

302

276

Minimum

72

98

308

72

185

187

418

680

85

62

61

61

July

247

225

206

191

181

161

144

130

120

112

102

94

88

86

92

110

113

108

107

104

110

104

100

101

101

100

95

91

92

85

85

Aug.

76

76

75

76

7fi

73

73

75

75

72

71

72

73

71

68

66

6E

65

65

66

66

65

69

70

68

67

65

63

62

62

63

Mean

110

663

1,05S

815

237

711

1 , 400

122

69. 3

71.9

601

Sept.

65

64

63

63

61

61

66

BF

s:

8,

88

86

85

86

83

66

75

74

75

73

70

70

68

66

63

6t>

67

67

68

65

Runoff in 

ao re-feet

6,740

39,590

64,940

590,000

14,590

61,100

86,080

7,510

4,260

4,280

434,900

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for 

Weiser River stations.

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading.
192 WEISER RIVER BASIN

Weiser River above Crane Creek, near Weiser, Idaho

Location.- Water-stage recorder, lat. 44°18', long. 116°48 I , in sec. 10, T. 11 N., R. 4 

w., 1 mile upstream from Crane Creek and 9 miles northeast of Weiser.

Drainage area.- 1,160 square miles.

Records available.- July 1920 to September 1947.

Average discharge.- 26 years (1921-47), 852 second-feet.

Extremes.- Maximum discharge during year, 5,310 second-feet Nov. 28; maximum gage height, 

8.91 feet Feb. 12 (ice Jam); minimum, 45 second-feet Aug. 8 (gage height, 0.95 foot).

1920-47: Maximum discharge, 16,900 second-feet Mar. 19, 1932 (gage height, 10.8 

feet, from floodmarks), from rating curve extended above 9,000 second-feet by logarithmic plotting; minimum, 5 second-feet (estimated) Aug. 11 to Sept. 10, 1931.

Remarks.- Records excellent except those for periods of ice effect or no gasp-height 

record, which are fair. Plow partly regulated by Lost Valley Reservoir (see p. 193) 

and other reservoirs. Diversions above station for irrigation.

Rating table, water year 1946-47, except period of ice effect

(gage height, in feet, and discharge, in aecond-feet)

(Shifting-control method used July 14 to Sept. 1)

0.9 48 1.6 260 3.5 1,770 

1.0 66 1.9 407 4.0 2,430 

1.1 88 2.2 588 4.8 3,690 

1.2 115 2.6 880 5.5 4,910 

1.4 181 3.0 1,230

Discharge, in second- feet, water year October 1946 to September 1947

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.-

112 

115 

130 

150 

143

134 

134 

140 

143 

140

140 

143 

146 

143 

143

140 

137 

137 

140 

146

160 

215 

344 

315 

252

240 

252 

223 

204 

196 

196

Nov.

196 

208 

181 

164 

174

161 

189 

196 

185 

181

189 

185 

178 

170 

185.

164 

192 

876 

2,320

1,140 

848 

1,350 

1,960 

1,240

-1,290 

3,590 

4,780 

3,840 

2,490

Dec.

1,820 

1,460 

1,220 

1,120 

1,190

2,160 

1,730 

1,520 

1,540 

1,280

1,390 

2,860 

*3,250 

4,000 

3,830

2,930 

2,080 

1,670 

1,520 

1,320

1,170 

1,080 

960 

880

816

800 

896 

832 

622 

601 

493

Jan.

549 

463 

400 

370 

380

430 

430 

440 

420 

400

380 

370 

360 

340 

320

300 

300 

290 

330 

350

350 

320 

310 

320 

340

360 

400 

300 

320 

310 

270

Feb.

zeo

310 

330 

300 

300

310 

300 

300 

300 

310

320 

1,100 

4,500 

3,000 

2,740

2,620 

2,320 

2,300 

*1,820 

1,450

1,330 

1.2TO 

1,210 

1,240 

1,170

1,080 

1,010 

904

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

Dber. ...................................

lendar year 1946 

ary .

1. .....................................

St.... .................................

ember ..................................

ter year 1946-47 ......................

Mar.

840 

848 

856 

1,050 

920

770 

740 

762 

800

3,010

2,520 

1,820 

1,530 

1,380 

1,330

1,350 

1,480 

1,650 1,760' 

1,820

1,820 

 1,820 

2,060 

1,840 

1,620

1,510 

1,380 

1,320 

1,300 

1,380 

1,580

Apr.

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

1 

2

Seoondfoot-days

5,353 

29,020 

49,040

460,125

11,222 

34,424 

44,866 

42,134 

64,830 

33,758 

4,492 

2,058 

3,128

324,325

,510 

,450 

,450 

,350 

270

,180 

,110 

,050 

080 

010

952 

912 

920 

,030 

240

450 

560 

,660 

650 

700

660 

580 

560 

470 

450

500 

600 

770 

960 

050

May

1,980 

2,210 

2,820 

3,100 

3,010

2,980 

3,010 

3,170 

3,360 

3,120

2,490 

2,210 

2,580 

2,330 

2,140

1,980 

1,880 

1,770 

1,710 

1,690

1,650 

1,610 

1,470 

1,410 

1,400

1,420 

1,420 

1,380 

1,210 

1,120 

1,200

Maximum

344 

4,780 

4,000

8,290

549 

4,500 

3,010 

2,050 

3,360 

2,360 

396 

91 

137

4,780

June

1, 340 

1,^380 

1,320 

1,360 

1,260

1,230 

1,160 

1,370 

2,360 

2,220

1,890 

1,570 

1,410 

1,290 

1,160

1,100 

1,270 

1,140 

1,000 

928

848 

785 

676 

608 

562

523 

542 

523 

487 

446

Minimum

112 

164 

493

64

270 

280 

740 

912 

1,120 

446 

79 

48 

64

48

July Aug.

396 73 

354 68 

320 59 

a280 59 

a250 57

8225 55 

8200 57 

a!75 48 

8150 53 

127 59

121 61 

112 61 

104 62 

96 68 

91 62

88 .61 

102 61 

102 62 

104 64 

96 66

93 77 

99 64 

99 77 

93 86 

96 91

91 88 

96 81 

91 73 

79 73 

81 70 

81- 62

Sept.

64 

68 

73 

'7773 

75 

79 

96 

130 

134

137 

137 

127 

121 

121

121 

112 

118 

121 

121

118 

115 

112 

102 

99

99 

93 

93 

93 

99

u... Runoff in *ean aore-feet

173 10,620 

967 57,560 

1,582' 97,270

1,261 912,700

362 22,260 

1,229 68,280 

1,447 88,990 

1,404 83,570 

/2,091 128,600 

1,125 - 66,960 

145 8,910 

66.4 4,080 

104 6,200

889 643,300

* Winter discharge measurement made on this day. 

a No eaze-heleht record: discharge comnuted on basis of weather records and records for station

near Cambridge.

Note.- Stage-diacharge relation affected by Ice, Jan. 3 to Feb. 14 (no gage-height record Jan. 13 to 

Feb. 9; discharge computed on basis of weather records and records for station near Cambridge).
WEISER RIVER BASIN 

West Fork Weiser River near Fruitvale, Idaho

193

Location.- Staff gage, lat. 44°50', long. 116°28', in NW£ sec. 9, T. 17 N., R. 1 W. at

 bridge, l£ miles northwest of Fruitvale and If miles upstream from mouth.

Drainage area.- 78 square miles.

Hecords available.- October 1910 to January 1913, October 1919 to September 1925, April

lyaY to septemoer 1947.

Average discharge.- 15 years (1911-12, 1919-22, 1924-25, 1937-47), 91.7 second-feet. 

Extremes.- Maximum'daily discharge during year, 337 second-feet May 3, 4; maximum gage

 height, 3.JKTTeet Feb. 13 (ice jam); minimum discharge observed, 3.0 second-feet

Oct. 1, 5, 6, 17 (gage height, 1.15 feet).

1910-13, 1919-25, 1937-47: Maximum discharge observed, 1,170 second-feet Mar. 31,

1940; minimum observed, 0.5 second-foot July 23-27, 1911. 

Remarks.- Records fair except those for periods of ice effect or no gage-height record,

wnlcii are poor. Gage usually read once daily. Several diversions above and below

station for irrigation. Flow regulated by Lost Valley Reservoir (see following page)

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

6

6

7

8

9

10

11

12

13

14

15

16

17

16

19

20

n

22

23

24

25

26

27

28

29

31

Oct.

3.0

eS.O

3,4

a3. 2

3.0

3.0

4.9

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.4

3.0

3.8

4.0

4.9

a6.2

7.4

8.2

7.4

6.7

11

8.6

7.4

7.4

9.0

8.2

Nov.

al2

a!5

15

15

13

9.C

9.0

11

alO

9.0

9.8

alo11

9.0

9.0

8.6

al2

23

837

34

24

24

75

50

a47

44

106

150

137

96

-

Dec.

80

65

57

870

S2

80

S6

86

71

 65

74

94

155

222

24S

242

197

175

1S5

137

120

107

392

a82

74

71

66

e65

65

bSg

85A

Jan.

b51

b40

b32

b33

b33

b40

340

b44

b35

b32

b32

b32

b31

b29

328

b27

b28

b28

b29

b30

b28

b26

b24

b24

b27

b31

b28

b26

b25

324

b24

Feb.

b24

b25

b25

b23

*b24

b23

b23

b23

b24

b22

b22

bllO

b300

133

126

133

148

133

116

107

104

94

110

110

110

98

86

86

-

-

-

Month

December. ...................................

Calendar year 1946 ......................

Hay........................................

July. ......................................

September. .................................

Water year!946-47 ......................

Mar.

82

71

872

71

65

68

57

68

a80

116

116

110

100

100

116

135

163

217

242

242

259

300

270

245

217

207

193

180

193

3210

217

Apr.

227

3220

217

193

ISO

163

151

148

133

130

123

126

133

184

227

8270

288

288

300

300

291

270

253

232

237

232

3240

259

288

294

-

Seooniifoot-days

162.5

1,034.4

3,287

40,285.0

1,163.3

842.2

28,437.4

May

270

300

337

8337

331

331

331

318

8290

270

217

212

188

151

144

54

43

41

43

41

22

22

26

26

26

19

20

14

14

14

14

Maximum

11

150

248

836

54

337

June

14

16

22

26

827

28

28

41

65

58

57

54

51

145

43

43

43

51

49

41

338

32

30

30

30

a30

30

22

22

20

Minimum

3.0

8.6

50

2.2

123

9.0

3.0

July

20

19

16

14

14

14

14

14

12

a!3

14

12

6.3

22

57

54

51

846

43

57

57

54

57

57

62

65

62

57

57

62

61

Aug.

57

59

57

57

54

54

54

57

54

54

54

354

57

57

54

54

54

54

57

57

856

54

57

54

54

53

51

54

51

50

51

Mean

5.24

34.5

106

110

?8.1

77.9

Sept.

50

51

51

351

49

852

54

51

51

51

51

51

49

323

10

10

10

10

10

10

10

9.6

9.0

9.0

9.6

10

10

10

10

810

Runoff, in 

aore-feet

322

2,050

6,520

79,900

1,670

56,390

 Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Lost Creek near Tamarack and 

Inflon between stations on Weiser River at Starkey and near Council. 

fc Stage-discharge relation affected by Ice. 

e Staff-gage readings not representative of mean for day; discharge computed as explained in f oot -

Lost Valley Reservoir uear. Tamarack, Idaho

Location.- Staff gage, lat. 44°57'30", long. 116°28', in sec. 28, T. 19 N., R. 1 W.,

a snort distance upstream from outlet gate:s near left end of dam on Lost Creek, 4 miles 

west of Tamarack and 16 miles north of Council.

Drainage area.- 29.4 square miles.

Hecoras available.- May to September 1924, May 1926 to September 1947.

Extremes.- Maximum gage height observed during year, 26.40 feet June 11; minimum observed,

 17,40 feet Sept. 3.

1924, 1926-47; Maximum gage height observed, 26.90 feet May 14, 1940; no storage 

at times during several years prior to 1938. 

Remarks.- Reservoir is formed by earth dam completed in 1910 and raised 6 fe?t in 1929.

 Permanent spillway crest is at gage height 22.'6 feet; during 1938 temporary flashboard structure was raised to permit storage to gage height about 26 feet. Water is 

used for irrigation of lands in Weiser River Basin.

Cooperation.- Several gage readings furnished by Lost Valley Reservoir Co.
WFI Q ER RIVER BASIN

Gage height, in feet, of Lost Valley Reservoir near Tamarack, Idaho, 

water year October 1946 to September 1947

Date

Oct. 23 

25 

Mar. 14 

May 1

15

Gage height

17.70 

17.83 

23.57 

24.95 

24.50

Date

May 21 

24 

June 11 

12 

27

Gage height

25.10 

25.40 

26.40 

26.36 

26.22

Date

July 19 

29 

Aug. 27 

Sept. 3

Gage height

25.25 

23.59 

18.08 

17.40

Lost Creek near Tamarack, Idaho

Location.- Water-stage recorder, lat. 44°57', long. 116°28', in sec. 28, T. 19 N., R. 1 W., 

a quarter of a mile downstream from dam of Lost Valley Reservoir, 4 miles vnst of Tamarack, and 16 miles north of Council.

Drainage area.- 29.4 square miles.

Records available.- January 1910 to August 1914, May 1920 to September 1921, Miy 1924 to 

September 1947.

Average discharge.- 17 years (1930-47), 35.4 second-feet.

Extremes (regulated since 1910).- Maximum discharge during year, 222 second-feat May 5, 6 

(gage height, 2.70 feet); practically no flow Sept. 14 (gage height, 0.67 foot); minimum daily, 1 second-foot Oct. 1-24.

1910-14, 1920-21, 1924-47: Maximum discharge, about 688 second-feet May 17, 18, 1921 

(gage height, 4.29 feet); practically no flow at times when gates in dam we-e closed.

Remarks.- Records good except those below 10 second-feet and those for periods of no gageheight record, which are fair. No diversion between reservoir and station; practically 

entire flow diverted below station during irrigation season. Flow regulated by Lost 

Valley Reservoir (see p. 193).

Cooperation.- Water-stage recorder inspected by Lost Valley Reservoir Co.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

4

4

4

4

4

4

Nov.

4

4

4

4

4

-

Dec.

4

4

4

4

5

5

5

6

9

14

22

30

47

78

106

116

109

102

98

88

77

68

60

54

49

46

46

40

38

35

34

Jan.

} 

I -

I

1 ..

I

I 

)

' 15

Feb.

15

20

' 25

_

_

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1946 ......................

January. ................................. .

February ...................................

March

April ......................................

May........................................

June .......................................

July. ......................................

August ........................ ............

September ..................................

Water year 1946 47 ...... ...............

Mar.

> 21

21

20

20

'29 22

39

52

65

81

93

98

96

93

88

87

88

96

102

Apr.

106

106

106

102

98

90

84

80

74

70

65

65

68

78

101

120

136

148

158

163

163

158

150

143

138

138

143

153

165

174

-

Secondfoot days

50

120

1,403

17,159

580

585

1,463

3,543

2 '737 959

1 1 366

1,931

845

15,582

May

174

179

190

210

222

222

216

210

210

193

168

153

141

128

86

23

22

25

28

31

25

12

15

15

10

13

12

7

6

6

7

Maximum

4

4

116

350

102

174

222

36

71

68

58

222

June

8

10

12

15

16

18

18

27

33

34

36

34

34

33

32

32

35

33

32

31

29

26

26

24

22

22

18

16

16

15

-

Minimum

1

4

4

1

65

6

8

9

58

5

1

July

15

14

14

13

13

13

12

11

10

10

9

9

25

53

71

66

61

59

61

69

69

69

69

69

69

69

69

69

69

69

68

Aug.

68

66

66

66

66

66

65

65

65

65

65

64

64

64

62

62

61

61

61

60

60

60

60

59

59

59

59

59

58

58

58

Mean

1.6

4.0

45.3

47.0

18.7

20-9

47.2

118

95.5

24.6

44.1

62 . 3

28.2

42.7

Sept.

58

58

58

58

58

56

56

56

56

56

55

54

54

32

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

-

Runoff in 

acre-feet

99

238

2,780

34,030

1,150

1,160

2,900

7,030

5,870

1,460

2,710

3,830

1,680

30,910

Note.- Ho gage-height record Jan. 1 to Mar. 13; discharge computed on basis of weather records and 

records for stations on other Weiser River tributaries and nearby streams.
WEISER RIVER BASIN 195

Middle Pork Weiser River near Mesa, Idaho

Location.- Staff gage, lat. 44°39' , long. 116°27', In NW£ sec. 10, T. 15 N., R. 1 W., at

old highway bridge, If miles north of Mesa and 2j miles upstream from mouth. 

Drainage area.- 86.5 square miles. 

Kecoras available.- August 1919 to November 1921, April 1937 to September 1917. October

1910 to August 1913 at site three-quarters of a mile upstream. 

Average discharge.- 10 years (1937-47), 118 second-feet. 

Kxtremes.- Maximum discharge observed during year, 925 second-feet May 9; maximum gage

neight observed, 3.54 feet Jan. 18 (ice Jam); minimum observed, 0.4 second-foot Sept. 3

(gage height, 0.30 foot).

1919-21, 1937-47: Maximum discharge observed, 1,380 second-feet May 1, 1938, fromrating curve extended above 1,000 second-feet; no flow at times in 1937, 1939-41. 

Remarks.- Records good except those for periods of ice effect and those for Apr. 10-30,

wnich are fair. Gage read twice daily. Mesa Orchards Canal diverts about 6^ miles

above station.

Rating tables, water year 1946-47, except periods of Ice effec 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1, 4, Apr. 14-29)

Oct. 1 to Apr. 13 Apr. 14 to Sept. 30

0.8 15 1.6 119 0.4 1.1 1.0 26 2.1 278

.9 21 1.9 191 .5 2.1 1.1 37 2.4 4O9

1.0 29 2.2 281 .6 4.3 1.2 50 2.8 635

1.1 39 2.5 390 .7 7.7 1.4 82 3.2 925

1.2 51 2.9 580 .8 12 1.6 123

1.4 81 . .9 18 1.8 176

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

14

31

29

17

26

23

23

20

20

21

20

21

20

20

20

20

19

19

19

20

45

67

68

41

39

57

35

34

32

32

26

Nov.

25

26

24

35

36

35

36

31

32

31

30

28

33

34

32

29

30

132

390

158

103

103

255

165

143

146

340

351

265

163

-

Dec.

165

151

109

109

139

153

146

137

111

113

*181

295

344

565

386

268

183

163

175

146

146

111

103

105

105

99

103

85

70

70

70

Jan.

70

55

40

45

50

55

55

50

50

50

50

45

45

40

40

40

40

40

45

45

45

40

40

40

45

50

50

40

40

40

35

Feb.

40

55

45

45

 50

45

45

45

45

45

54

194

315

153

155

146

160

148

109

95

95

97

99

94

93

94

81

64

_

_

-

Month

October. ...................................

November . ..................................

December ...................................

Calendar year 1946 ......................

January ....................................

February. ..................................

llaroh. .....................................

April. .....................................

Mav ""» 

June .......................................

July.. .....................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

90

76

75

76

73

55

58

81

126

191

143

109

95

101

109

113

143

143

146

155

160

178

208

163

*165

143

e!40

143

132

153

158

Apr.

151

148

141

151

148

139

111

137

139

137

107

123

107

154

215

232

237

258

273

304

291

268

262

264

296

335

350

38O

466

459

May

434

e500

733

775

865

691

684

768

918

740

609

514

705

570

520

492

525

531

508

470

454

464

514

476

429

459

449

362

306

294

336

£££. "-a 

895 68

3,241 390

5,106 565

49,819.2 - 696

1,415 70

2,705 315

3,901 208

6,783 466

17,095 918

7,7O8 564

1,047.6 110

42.5 2.0

277.0 20

50,216.1 918

June

340

290

278

260

278

278

278

395

564

444

439

349

286

278

256

274

278

241

234

221

207

176

148

143

140

130

140

133

116

114

-

UiniBun

14

24

70

.2

35

40

55

107

294

114

2.0

1.0

.5

.5

July

110

95

95

92

77

59

58

52

44

41

38

32

27

26

25

22

21

19

16

16

14

11

11

11

8.2

7.7

7.0

4.3

3.6

2.8

2.0

Aug.

1.7

2.0

1.7

1.9

1.9

1.9

1.7

1.3

1.2

1.0

1.2

1.0

1.0

1.0

1.0

1.0

1.0 1.1

1.0

1.2

1.3

1.3

1.5

1.6

1.6

1.6

1.6

1.5

1.5

1.2

1.0

Sept.

0.8

O.7

0.5

0.7

0.6

0.8

1.1

1.6

2.1

3.0

2.5

2.3

3.6

7.7

14

16

20

17

16

17

17

15

15

16

12

15

16

14

15

14

~

u Runoff in "ean acre-feet

28.9 1,780

108 6,430

165 10.13C

136 98,820

45.6 2,810

96.6 5,370

126 7,740

226 13,450

551 33,910

257 15,290

33.8 2,080

1.37 84

9.23 549

138 99,620

* Winter discharge measurement made on this day.

e Gage readings not representative of mean for day; discharge computed on basis of weather recorc 

inflow to Weiser River between stations near Council and near Cambridge, and records fir nearby

Mote.- Stage-discharge relation affected by ice Dec. 28 to Feb. 10.
196 WEISER RIVER BASIN

Mesa Orchards Canal near Mesa, Idaho

Location.- Staff gage, lat. 44°38 I , long. 116°25', in sec. 14, T. 15 N., R. 1 W., 1,500 

teet upstream from end of flume, 1^ miles northeast of Mesa, and 3 miles (?ownstream 

from «head gates.

Records available.- 1924, 1928-47 (irrigation seasons only except 1947).

Extremes.- Maximum discharge observed during year, 39 second-feet July 18-23, 27, 30;

maximum gage height observed, 2.71 feet July 18, 21-23; no flow for long periods during 

irrigation season.

1924, 1928-47: Maximum discharge observed, 39 second-feet July 17, 19^5, July 18-23, 

27, 30, 1947; maximum gage height observed, that of July 18, 21-23, 1947; no flow during 

nonirrigation seasons.

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

CJage usually read twice daily and gate changes noted. Canal diverts from Middle Fork 

Weiser River In SE^M^ sec. 9, T. 15 N., R. IE., for irrigation of Mesa orchards and 

for domestic supply of Mesa. Flow regulated by gates in diversion dam and_waste gates 

in flume above gage.

Cooperation.- Gage readings furnished by The Mesa Co.

Discharge, .in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3.5

4.6

4.8

5.3

5.3

> 35

i

1 2.3

a2

a2

Nov.

aZ

al

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0-

Dec. Jan. Feb.

Month

December ........................... .......

Calendar year .................

March .................................. . .

May. .......................................

September. ............. ...................

Water year 1946-47 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

a7

14

18

Apr.

20

18

20

11

14

12

12

12

12

12

8

12

11

5.4

5.4

5.4

9.6

14

15

16

14

13

13

12

12

12

13

17

20

15

-

Seccndfcot-days

0

.

363.6

4,284.6

May

13

13

13

6.2

9.2

12

14

16

20

15

18

16

16

16

14

15

15

15

14

17

19

21

26

29

30

30

30

32

33

33

35

Maximum

0

.

26

39

June

35

31

24

21

21

19

18

19

18

19

18

17

17

18

18

18

17

17

18

16

21

24

29

35

35

36

. 36

36

36

36

-

Minimum

0

_

2.8

0

July

36

36

33

33

34

34

35

35

36

37

36

37

37

37

37

38

38

39

39

39

35

39

39

37

38

38

39

37

37

38

37

Aug.

37

36

35

35

35

35

33

32

32

32

31

32

31

30

a28

a27

25

27

27

27

28

28

29

27

26

25

24

23

23

22

22

Mean

^

0

_

29 2

12.1

11.7

Sept.

21

21

22

22

21

21

24

26

25

22

20

18

13

8.8

8.2

7.0

6.8

5.4

4.7

4.1

2.8

3.0

3.0

4.5

6.3

4.6

4.8

4.5

3.5

5.6

Runoff in 

acre-feet

0

.

721

8,490

a No gage-height record; discharge Interpolated, or computed on basis of weather records and reported gate changes.
WEISER RIVER BASIN 197

Johnson Creek below Johnson Park, near Council, Idaho

Location - Water-stage recorder, lat. 44°46' , long. 116°38 I , in SE-f sec. 36, T. 17 N., 

K. aw., 50 feet downstream from Johnson Park Creek, three-quarters of a mile southeast of Johnson Park, and 10 miles northwest of Council.

Drainage area.- 5 square miles.

Records available.- March 1941 to September 1947 (no winter records).

Extremes.- Maximum discharge during year, 103 second-feet May 2 (gage height, 2.14 feet); 

minimum recorded, 0.4 second-foot Oct. 16 (gage height, 0.35 foot).

1941-47: Maximum discharge, 201 second-feet (revised) May 30, 1945 (gage height, 

3.00 feet), from rating curve extended above 75 second-feet; minimum recorded, that 

of Oct. 16, 1946.

Revisions.- The maximum discharge for the water year 1945 has been revised to 201 

second-1'eet May 30 (gage height, 3.00 feet), superseding figure published in WaterSupply Paper 1043.

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

Wo diversion or regulation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1.

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.4

1.5

1.4 1.'3

1.5

1.4

1.5

1.4

1.4

1.3

1.3

1.3

1.2

1.3

1.3

1.2

1.2

1.5

1.4

2.3

4.7

12

5.2

3.4

3.6

3.6

a3.0

a3.0

a3.0

a3.0

h2.3

Nov. Dec. Jan. Feb.

Month

December . . ................................

Calendar year ......................

May. .......................................

September. .................................

Water year ......................

Mar.

a2.0

a2.0

a2.0

a2.0

a2.0

aE.O

a2.0

a2.0

a2.0

a2.0

a2.0

a2.o

a3.0

3.8

4.1

4.7

5.7

6,2

7.2

8.3

9.5

11

11

11

11

9.5

8.7

9.1

10

13

12

Apr.

11

10

9.9

9.1

8.7

8.3

7.6

7.6

7.2

7.2

7 .2

8.0

11

17

22

28

29

28

29

27

25

25

25

28

34

40

46

49

49

46

-

Secondfoot-days

-

_

40.6

-

May

56

76

76

73

73

75

80

78

84

66

60

60

58

53

51

48

47

44

46

44

43

41

40

39

38

38

40

37

32

30

30

Maximum

_

_

1.8

-

June

33

30

31

27

25

23

27

50

35

30

26

23

22

20

18

23

23

18

16

15

14

13

12

12

11

11

11

11

10

9.5

-

Minimum

.

_

1.2

-

July

8.7

8.1

6.7

6.4

6.2

6.2

5.2

5.0

4.7

4.5

4.1

3.9

3.8

3.6

3.4

3.2

3.0

2 .8

2.7

2.6

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2-. 2

2.1

2.0

2.0

Aug.

1.8

1.8

1.8

1.8

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

Mean

-

_

1.35

-

Sept.

1.3

1.3

1.3

1.2

1.2

1.2

1.8

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.4

1.3

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.5

1.5

1.5

1.5

1.5

1.5

-

Runoff in 

acre-feet

149

-

_

81

-

a No gage-height record: discharge computed on basis of records for Little Welser River near Indian 

Valley and .stations on nearby streams having similar drainage areas, 

h Computed from staff-gage reading.
198 WEISER RIVER BASIN

Bacon Creek near Mesa, Idaho

Location.- Water-stage recorder, lat. 44°37'30", long. 116°28'40", in NE£ sec. 20, T. 15 

W., K. 1 W., if miles west of Mesa and 5j miles upstream from mouth.

Records available.- June 1944 to September 1947.

Extremes.- Maximum discharge during year, 28 second-feet Feb. 12 (gage height, 2.94 feet), 

from rating curve extended above 18 second-feet; minimum not determined, occurred during 

period of no gage-height record

1944-47: Maximum discharge recorded, 50 second-feet Mar. 20, 1946; minimum observed, 

0.6 second-foot (discharge measurement) Dec. 11, 1944.

Remarks.- Records fair except those for periods of ice effect or no gage-heigft record, 

wnicn are poor. Bacon Creek is the natural wasteway for irrigation water on Mesa 

orchards tract, and natural flow is augmented by surface and sub-surface rrnoff from 

this source.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

. 3

f4.6

f6.0

5.2

4.4 } 

2.3

3.0

3.0

Nov.

5.0

2.3

1.8

1.8

1.6

1.6

1.8

1.5

1.5

1.6

1.6

1.3

1.3

1.3

1.3

1.3

1.3

3.0

8.7

4.1

2.3

2.5

5.8

3.2

2.9

6.8

14

16

11

6.8

-

Dec.

5.4

4.9

4.3

4.4

6.5

6.4

4.4

4.9

4.6

4.1

*9.9

11

11

12

8.2

6.2

5.1

4.8

5.0

4.6

4.5

4.1

3.6

3.5

3.6

3.9

6.2

3.3

2.9

3

3

Jan.

» 3

,,

> l

Feb.

, *1

6.5

8.0

3.2

4.5

5.5

9.5

5.5

3.9

3.5

3.9

3.9

4.1

3.5

3.3

2.9

2.8

2.5

-

Month

October. ...................................

November. ........................ .........

December. ..................................

Calendar year 1946 ......................

January. ...................................

February ................................

March ......................................

April ......................................

May. .......................................

June ........................................

July. ......................................

August .....................................

September . ..............................

Water year 1946-47 ......................

Mar.

2.4

2.5

3.5

3.8

2.7

2.6

2.7

3.4

4.2

8.3

5.2

4.1

4.0

4.0

3.9

3.6

3.4

3.3

3.0

2.9

2.9

3.6

3.1

2.6

*2.5

Z.5

2.4

2.2

3.1

7.7

1Z

Apr.

14

13

15

13

11

8.9

10

12

12

11

12

13

12

9.2

7.5

6.6

7.2

10

11

12

11

10

16

10

9.6

9.0

9.6

11

14

10

Secondfoot-days

100.5

117.0

169.3

3,152.6

61.0

88.0

118.1

324.6

254.7

364.0

400

367.1

240.2

2,604.5

May

9.4

9.0

7.5

6.5

6.9

8.6

8.2

5.6

8.8

8.1

8.6

13

12

11

9.3

8.3

7.8

7.6

7.2

7.2

7.8

6.1

5.2

6.4

6.5

6.1

7.7

8.0

8.7

9.6

12

Maximum

6.0

16

12

40

9.5

12

15

13

19

14

15

18

19

June

14

16

16

12

11

10

11

18

19

17

14

13

13

12

13

13

11

11

11

10

7.6

8.7

9.8

10

8.7

9.2

11

11

11

12

Minimum

1,3

2.9

-

_

2.2

6.6

5.2

7.6

 11

8.9

1.9

-

July

11

11

11

12

12

12

12

12

12

13

13

13

14

13

12

12

12

13

14

14

14

14

14

14

14

13

13

14

14

14

14

Aug.

14

14

13

14

15

14

15

15

14

14

13

12

12

11

11

10

10

11

11

11

11

11

11

11

11

10

9.8

9.8

9.6

8.9

10

Mean

3.24

3.90

5.46

8.64

2.0

3.14

3.81

10.8

8.22

12.1

12.9

11.8

8.01

7.14

Sept.

10

9.9

10

10

10

10

14

18

15

14

11

8.2

7.8

7.6

6.3

8.3

7.6

6.9

6.3

5.7

4.8

4.2

3.9

4.1

6.3

5.8

5.7

4.8

2.1

1.9

Runoff in 

acre-feet

199

232

336

6,250

121

175

234

644

505

722

793

728

476

5,160

* Winter discharge measurement made on this day.

f Computed on basis of partly estimated gage-height record.

Note.- No gage-height record Oct. 1-2O, 25-28, Dec. 3O to Feb. 5, Feb. 7-11, July 29-31; discharge 

computed on basis of weather records and records for stations on other Weiser- River tributaries and 

Mesa Orchards Canal near Mesa. Stage-discharge relation affected by ice about Jan. 1 to Feb. 10.
WEISER RIVER BASIN 199

Pine Creek near Cambridge, Idaho

Location.- Staff gage, lat. 44°35', long. 116°44', in SW£ sec.- 32, T. 15 N., R. 3 W., 300 

reec upstream from West Pork and 3.2 miles northwest of Cambridge.

Records available.- April 1938 to September 1947.

Extremes.- Maximum discharge observed during year, 204 second-feet May 9 (gage height, 

2.42 feet); minimum observed, 1.6 second-feet Aug. 27, 28 (gage height, 0.43 foot). 

1938-47: Maximum discharge observed, 392 second-feet Apr. 1, 1940 (gage height, 

3.26 feet), from rating curve extended above 250 second-feet; minimum observed, that 

of Aug. 27, 28, 1947.

Remarks.- Records good except those below 10 second-feet, which are fair, and those for 

periods of ice effect, which are poor. Gage read twice daily. Several diversions 

above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

 I

8

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

8.6 '

8.6

8.2

9.5

9.0

10

11

10

10

10

12

10

10

10

11

10

12

12

14

19

20

18

18

19

15

11

12

12

12

13

Nov.

12

11

9.5

9.5

10

12

12

11

12

13

12

12

12

12

12

11

12

16

24

20

16

20

£5

20

18

20

35

50

34

28

Dec.

24

23

21

22

27

30

27

27

26

24

*29

57

56

54

54

44

34

32

33

28

27

24

23

22

21

22

22

18

19

19

19

Jan.

19

17

15

15

16

17

17

15

15

15

14

14

14

13

13

13

13

13

14

14

14

14

13

13

15

16

15

14

14

14

13

Feb.

15

17

14

14

15

*16

16

15

15

15

15

60

98

71

62

63

75

63

58

49

47

46

47

43

43

40

35

33

_

-

Month .

December. ..................................

Calendar year 1946 ......................

March. ........................... .........

May. ......................................

September . ....................... ....... .

Water year 1946-47 ......................

Mar.

33

33

34

34

32

29

31

32

33

60

58

55

50

47

54

54

54

60

70

66

65

63

60

55

*51

49

49

47

45

51

50

Apr.

47

48

45

42

39

37

37

36

37

33

32

32

34

36

41

 47

50

52

55

49

48

49

47

48

49

60

65

76

80

80

Secondfoot-days

373.5

519.0

908

17,108.6

451

1,100

1,504

1,431

3,358

1,449

137.2

85.4

102.9

11,419.0

May

77

127

182

164

162

160

162

188

203

124

101

88

94

82

82

83

85

85

88

94

92

91

87

88

86

83

86

83

82

79

70

Maximum

20

50

57

251

19

98

70

80

203

92

10

3.5

5.8

203

June

72

71

77

72

68

66

59

80

92

69

64

60

52

48

47

49

63

55

47

33

28

25

24

22

22

22

21

\5

14

12

Minimum

8.2

9.5

18

2.3

13

14

29

32

70

12

2.1

1.8

1.8

1.8

July

10

10

9.0

8.6

7.8

7.4

7.4

7.0

6.6

4.9

3.8

3.8

3.1

2.7

2.5

2.9

2.9

2.9

3.1

2.9

3.1

2.5

2.9

2.9

3.1

2.9

2.1

2.1

2.1

2.1

2.1

Aug.

2.9

3.1

3.3

2.9

3.3

2.9

3.3

3.3

3.5

3.3

3.3

3.5

2.7

2.1

2.3

2.1

2.5

2.5

2.5

3.1

3.5

3.3

3.1

3.1

2.9

1.9

1.8

1.8

1.8

1.9

1.9

Mean

12.0

17 .3

29.3

46.9

14.5

39

48

47 ioa

48

4

2

.3

.5

.7

.3

.43

.75

3.43

31.3

Sept.

1.9

1.8

2.1

2.5

2.5

2.5

5.8

4.3

3.1

2.5

2.5

2.9

4.0

4.9

5.2

4.9

4.0

3.8

3.5

3.3

3.1

3.3

3.1

4.3

4.3

3.5

3.3

2.9

3.3

3.8

-

Runoff in 

acre-feet

741

1,030

1,800

33,940

895

2,180

2,980

2,840

6,660

2,870

272

169

204

22,640

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Jan. 2-10, 12-24, Jan. 28 to tfeb. 1, Fe
2DO WEISER RIVER BASIN

Little Weiser River near Indian Valley, Idaho

Location.- Staff gage, lat. 44°30', long. 116°24', in NE^ cec. 1, T. 13 N., R. 1 W., 

ijO feet downstream from barn at Richardson Ranch, 1 mile upstream from diversion 

feeding C. Ben ROSE Reservoir, and 4| miles southeast of Indian Valley.

Drainage area.- 31.9 square miles.

Records available.- April 1938 to September 1947. June 1320 to February 1921, March to 

September 19113, and February 1924 to October 1927 at nearby sites.

Extremes.- Maximum discharge observed during year, 740 second-feet May 9 (gage height, 

4.30 feet); minimum daily, 12 second-feet Nov. 2, 3.

1920-21, 1923-27, 1938-47: Maximum discharge observed, about 1,840 second-feet 

Feb. 4, 1925; minimum observed, 3.6 second-feet Aug. 28-30, Sept. 4, 5, 1924.

Remarks.- Records good except those for periods of ice effect or nonrepresentative or 

no gage-height record, which are fair. Gage read twice daily. One small ranch diversion above station. Many diversions below station for irrigation including feeder 

canal to C. Ben Ross Reservoir.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

'31 30 

Oct.

15 

24 

17 

1G 

15

15 

16 

16 

16 

15

15 

15

15

15

15 

14 

14 

14 

15

25 

32 

32 

24 

22

25

17 

16 

14 

14 

14

Nov.

13 

12 

12 

18 

18

18 

18 

17

. 17 

, 180

Dec.

130

*139 

345 

359 

602 

367

211 

207 

173 

144 

127

109 

112 

92 

90 

90

86 

84 

e60 

66 

58 

b58

Jan.

52 

41 

38 

38 

43

52 

52 

44 

45 

46

45 

41 

38 

36 

b36

37 

37 

b37 

38 

36

35 

35 

35 

b35 

39

b42 

b42 

b39 

39 

39 

31

Month

Ootc 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber . . ....................

mber . -

lendar year 194 

8.ry

st . ... --- .......

ember . 

ter year 1946-47. . .......

Feb.

36 

50 

38 

37 

47

*45 

45 

41 

40

41

38 

155 

272 

175 

163

155 

146 

140 

elOO 

e90

e90 

92 

93 

92

87

78 

78 

60

Secondfoot-days

547 

2,619 

4,879

44,286.9

1,243 

2,524 

3,484 

5,448 

13,050 

7,480 

1,450 

521 

439

43,684

Mar.

72 

64 

63 

64 

56

52 

52 

52 

53 

108

88 

82 

80 

86 

105

117 

139 

146 

153 

153

153 

196 

190 

155 

148

137 

136 

136 

143 

155 

150

Maximum

32 

602

602

52

272 

196 

318 

683 

479 

95 

24 

25

683

Apr.

144 

141 

141

124 

117

116 

109 

109 

117 

108

103 

106 

125 

150 

183

207 

216 

213 

213 

245

243 

225 

218 

198 

202

225

222 

295 

315 

318

May

334 

441 

512 

522 

515

515 

621 

644 

683 

492

414 

495 

473 

417 

385

382 

370 

370 

365

367

382 

353 

345 

373 

353

326 

332 

340 

287 

260 

382

Minimum

14 

12 

58

9.0

31 

36 

52 

103 

260 

103 

24 

13 

13

12

June

313 

292 

326 

297 

255

290 

260 

432 

479 

448

402 

345 

318 

290 

262

267 

253 

222 

209 

192

171 

163 

152 

134 

127

129 

124 

116 

109 

103

Mean

17.6 

87.3 

157

121

40.1 

90.1 

112 

182 

421 

249 

46.8 

16.8 

14.6

120

July

95 

88 

83 

79

77

73 

67 

62 

57 

56

53 

50 

46 

42 

39

38 

36 

34 

33 

33

32 

30 

30 

30 

30

50 

38 

26 

25

24 

24

Per 

square 

mile

0.215 

1.07 

1.92

1.48

.490 

1.10 

1.37 

2.22 

5.14 

3.04 

.571 

.205 

.178

1.47

Aug.

24 

24 

22 

21 

21

20 

19 

19 

18 

18

16 

16 

17 

16 

16

15

15 

15 

15 

16

16 

15 

16 

16 

15

14

14 

13 

13 

13 

13

Sept.

13 

16 

14 

14 

13

13 

25

18 

16 

16

15 

15 

13 

13

13

14 

17 

17 

15 

14

14 

14 

13 

13 

13

14 

14 

13 

14 

13

Runoff

Inches

0.25 

1.19 

2.22

20.12

.56 

1.15 

1.58 

2.47 

5.93 

3.40 

.66 

.24 

.20

19.85

Acre-feet

1,080 

5,190 

9,680

87,840

2,470 

5,010 

6,910 

10,810 

25,880 

14,840 

2,880 

1,030 

871

86,650

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

e Gage height not representative of average for day; discharge computed on basis o*1 weather records and records for other stations in Weiser River Basin.

Note.- No gage-height record Oct. 11, 12, 14-28, Oct. 30 to Nov. 7,. Nov. 9 to Dec. 10, Dec. 24- 

26, Feb. 18, Aug. 24: discharge computed on basis of weather records and records for other stations 

in Weiser River Basin.
WEISER RIVER-BASIN 201

Crane Creek Reservoir near Midvale, Idaho

Location.- Staff gage, lat. 44°22', long. 116°37', in SEJ: sec. 19, T. 12 N., R. 2 W. , 

at gate-control structure near left end of dam on Crane Creek, ]0 miles southeast of 

Midvale.

Drainage area.- 242 square miles.

Records available.- November 1923 to September 1947.

Extremes.- Maximum gage height observed during year, 48.6 feet Feb. 14, Apr. 26; minimum 

observed, 29.5 feet Oct. 6, 18.

1923-47: Maximum gage height observed, 56.3 feet Feb. 22, 1927; no usable contents 

Sept. 23, 1928, to Feb. 28, 1929, Sept. 25 to Dec. 1, 1929.

Remarks.- Reservoir is formed by earth dam completed in 1910 and raised in 1920-21.

Capacity is reported to be about 60,000 acre-feet at gage height 55.0 feet (elevation 

of spillway crest). Water is used for irrigation of lands in the lower Weiser Valley. 

Gage read once daily.

Cooperation.- Gage readings furnished by Crane Creek Reservoir Administration Board.

Gage height, in feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Dot.

_

_

30.0

_

-

29.5

_

-

-

-

.

-

-

_

-

_

-

29.5

_

-

_

.

_

-

31.7

_

31.7

-

Nor.

_

_

-

_

-

.

_

.

_

31.7

.

_

-

_

-

.

-

_

_

-

.

_

_

35.0

_

_

39.5

-

Dec.

_

_

_

_

-

_

_

.

_

42.0

_

_

-

_

-

.

-

_

_

43.8

_

_

_

-

_

_

_

_

44.2

Jan.

.

_

-

_

-

.

44.3

_

_

-

.

_

44.4

_

-

.

-

_

_

-

44.4

1 "

_

-

_

44.8

_

-

Feb.

44.8

_

_

_

-

_

_

-

_

45.2

.

_

48.2

48.6

-

48.4

-

_

_

47.0

.

_

_

45.7

_

45.6

_

-

Mar.

_

_

_

_

-

46.0

_

-

_

-

_

-

47.3

_

-

.

_

47.7

-

_

_

_

-

.

_

48.1

-

Apr.

.

_

_

_

-

.

_

-

48.5

48.5

.

_

-

48.5

-

.

-

_

_

-

__~

_

-

48.6

_

_

_

-

Hay

48.5

_

_

-

48.5

_

_

_

-

.

_

-

_

-

.

-

_

48.3

_

_

_

-

_

_

48. 1

48.1

June

.

_

48.1

_

-

_

_

.

_

-

48.2

-

-

48.3

-

_

-

_

_

-

48.2

_

-

.

_

_

_

_

-

July

.

_

_

_

-

48.0

48.0

-

_

47.5

.

-

-

_

46.8

.

46.6

_

_

-

45.9

.

_

-

45.0

_

_

_

-

Aug.

.

_

43.6

-

_

42.8

_

_

-

.

-

-

_

-

41.2

-

_

_

-

40.3

_

_

-

.

_

.

_

38.4

Sept.

.

_

_

_

37.4

37.2

_

-

_

-

36.3

_

-

_

-

.

-

_

-

-

35.0

_

_

-

_

_

_

-

881401 O - 50 -
202 WEISER RIVER BASIN

frane Creek near Midvale, Idaho

Location.- Water-stage recorder and concrete control, lat. 44°22', long. 116°37'30", in 

SE£ sec. 19, T. 12 N., R. 2 W., 400 feet downstream from Crane Creek Dam and 10 miles 

southeast of Midvale.

Drainage area.- 242 square miles.

Records available.- October 1910 to April 1916, May 1924 to September 1947.

Average discharge.- 26 years (1913-15, 1924-47), 70.6 second-feet.

Extremes (regulated since 1911).- Maximum discharge during year, 824 second-feet Feb. 16 

(gage height, ii.au reet); minimum not determined, probably occurred during perlcd of 

no gage-height record.

1910-16, 1934-47: Maximum discharge observed, 4,240 second-feet Dec. 3, 191C (gage 

height, 8.9 feet), from rating curve extended above 3,500 second-feet; practically no 

flow at times in many years when gates in dam were closed.

Remarks.- Records good except those below 1 second-foot, which are poor. Plow regilated 

by crane Creek Reservoir (see p. 201). No large diversion above station.

Cooperation.- W^ter-stage recorder inspected by p rane Creek Reservoir Administration Board.

Discharge, in second-feet, water year October 194R to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

40

40

36

28

28

16

a. 2

h.2

I .. > a. c

\

Nov.

> a. 2

-

Dec

> a . 2

Jan.

, ^ g

30

59

58

56

Feb.

54

54

52

52

52

52

50

50

50

50

50

50

311

666

77 n

794

818

812

812

621

482

477

477

477

233

72

72

50

_

_

-

Month

October ....................................

November. ........................ .........

December ..............."....................

Calendar year 1946 .....................

January ........ ..........................

February. .................................

March. .....................................

April. .....................................

Mnv »ay ........................................

June .......................................

July. ......................................

August ................. ...................

September ........,...........*..............

Water year 1946-47 ......................

Mar.

S3

32

31

31

31

14

3

2

.8

2

.8

.8

,8

.8

.8

.8

.8

.8

> a. 8

Apr.

> aO.8

.6

. a. 5

' a . 2

9

18

16

15

15

-

Secondfoot-days

192.0

6.0

6.2

36,943.2

208.4

8,560

196.6

85.6

489

288

3,751

4,883

3,052

21,717.8

May

15

16

a!6

a!6

a!7

17

17

18

18

18

18

18

18

17

16

16

16

16

13

8

8

8

10

18

18

18

17

17

17

17

17

Maximum

40

_

888

59

818

18

18

17

179

165

151

818

June

17

17

14

11

11

10

10

10

10

10

10

10

9

8

8

9

9

8

8

8

8

8

8

8

8

9

8

8

8

8

-

Minimum

_

-

-

50

_

8

8

8

151

83

-

July

8

8

8

8

8

19

f48

f97

f97

f!03

127

128

128

128

132

145

160

177

177

177

177

175

177

177

179

170

162

163

162

163

163

Aug. Sept.

165 151

163 151

163 149

163 146

163 135

162 121

162 119

162 118

162 115

160 115

160 115

158 109

158 85

157

157

157

157

155

. 155

155

155

155

154

154

154

154

154

154

152

152

151

Mean

6.19

.20

.20

lol

6.72

306

6.34

2.85

15.8

9.6

121

158

102

59.5

85

84

84

83

83

83

83

84

85

84

84

85

84

83

83

83

83

-

Ruioff in 

ac -e fset

381

12

12

"3,280

413

.6,980

390

170

970

571

7,440

9,690

6,050

1,3,080

a No gage-height record; discharge Interpolated, or computed on basis 

changes.

f Computed from partly estimated gage-height record, 

h Computed from staff-gage reading.

eporti of gate
WEISER RIVER BASIN

Crane Creek at mouth, near Weiser, Idaho

Location.- Water-stage recorder and concrete control, lat. 44°18', long. 116°47', in sec

 14, T. 11 N., R. 4 W., just downstream from steel highway bridge at Harris Ranch, a 

quarter of a mile upstream from mouth, and 10 miles northeast of Weiser.

Drainage area.- 288 square miles.

Records available - July 19PO to September 1947.

Average discharge.- 26 years (1921-47), 78.2 second-feet.

Extremes (regulated) ± - Maximum discharge during year, 1,610 second-feet Feb. 12 (gage

 height, 6.09 1'eetT; minimum, 0.5 second-foot Apr. 18 (gage height, 1.52 feet); minimum 

daily, 1.8 second-feet Apr. 18.

1920-47: Maximum discharge, 2,350 second-feet about Feb. 7, 1925 (gase height, 

6.80 feet, from well-defined marks on gage), from rating curve extended above 1,000 

second-feet; minimum, 0.2 second-foot May 26, 1931; minimum daily, 1 second-foot or 

less at times during many years; minimum gage height, 1.30 feet Jan. 21, 1922.

Remarks.- Records good except those for periods of no gage-height record, w'lich are fair.

 Flow regulated by Crane Creek Reservoir-(see p. 201). Several small ditches divert 

above station for irrigation.

Rating tables, water year 1946-47 (gage height, In feet, 

dnd discharge, In second-feet)

Oct. 1 to Feb. 12 Feb. 12 to Sept. 30

1.6

1.7

1.8

1.9

2.0

2.1

1.2

2.3

4.0

6.5

10.0

14

183

249

354

503

81

132

Note.- San 

2.7 feet.

3.5 

3.8

4.1

19b 

268 

355

4.4 

4.8 

5.2

460

645

895

as preceding table below

Discharge, In second-feet, water year October 1946 to Sepiemuer 1947

Day

1

6

11

16

21

<CO

«9

26

AO

OU

Oct.

42

42

42

34

34

31

11

6.5

6.0

5.5

5.5

5.5

5.5

5.5

5.2

5.2

5.0

5.0

5.2

5.2

5.5

5.8

6.0

5.8

5.5

5.5

5.5

5.5

5.5

5.8

5.8

Nov.

6.2

6.0

5.8

5.8

5.8

5.8

5.8

5.8

5.5

5.8

6.0

5.8

6.0

6.0

6.0

6.0

6.0

7.6

11

13

9.0

9.0

32

17

9.3

47

240

96

59

27

-

Dec

16

13

11

10

12

55

21

14

18

13

11

13

17

29

18

12

7.9 '7.9

7.2

7.2

7.2

6.8

6.8

6.5

6.5

6.8

9.3

9.6

8.2

6.2

7.. 2

Jan.

6.2

5.8

a5.0

a6.0

h8. 6

a8.0

a8.0

a7.5

a7.5

a7.0

a7.0

6.5

a6.5

a6.0

a6.0

a6.0

a6.0

a8.0

hll

all

all

a 10

alO

9.6

7.9

29

18

12

54

55

53

Feb.

53

56

6?

56

57

63

64

59

55

54

54

496

499

679

827

827

841

834

820

687

485

480

480

480

298

72

68

57

_

_

-

Month

December ................................. .

Calendar year 1946 ......................

unv

September. ..................................

Water year 1946-47 ......................

liar.

33

32

34

35

31

27

12

8.6

9.3

134

53

23

16

13

12

10

9.3

9.0

8.2

7.9

7.6

7.6

9.0

8.6

7.6

6.8

6.5

6.5

6.5

6.8

7.2

Apr.

6.0

6.0

6.2

6.0

6.0

6.2

6.2

6.8

24

14

9.3

7.2

6.0

6.0

5.8

5.5

3.5

1.8

2.0

3.7

4.0

4.0

3.7

3.7

3.2

3.0

8.2

14

15

16

[_ -

Secondfoot-days

369.0

677.0

394.3

43,284.2

413.1

9,563

598.0

213.0

369.1

322.4

3,477.3

4,498

2,936

23,830.2

May

16

15

14

14

14

14

13

10

16

14

14

14

15

16

14

13

13

14

14

10

6.5

4.8

3.5

3.5

8.2

9.6

10

11

1]

12

12

Maximum

42

240

55

1,310

55

841

134

24

16

20

171

152

142

841

June

12

14

17

12

11

12

10

16

20

16

16

16

16

14

14

14

13

11

11

9.6

7.2

6.0

4.0

3.3

3.5

3.5

3.8

4.8

5.5

6.2

-

Minimum

5.0

5.5

6.2

5.0

5.0

53

6.5

1.8

3.5

3.3

6.0

142

78

1.8

July Aug.

6.0 152

6.2 150

6.5 152

6.2 150

6.2 146

7.2 146

27 146

71 144

84 144

87 146

115 146

117

119

119

121

136

148

169

169

169

171

171

171

165

165

165

156

156

156

156

156

144

146

146

142

142

144

142

142

146

146

146

146

146

144

142

142

142

144

142

142

Hear

11.9

22.6

12.7

119

13.3

342

19.3

7.10

11.9

1C. 7

11?

14?

97.9

65.3

Sept.

142

140

138

140

130

115

119

117

113

111

110

110

81

78

81

81

81

81

81

81

80

80

80

80

81

81

81

81

81

81

Runoff in 

acre-feet

732

1,340

782

85,840

819

18,370

1,190

422

732

639

6,900

8,920

5,820

47,270

a No gage-height record; discharge computed on basis of weather records and records for 

streams in Weiser River Basin and Jordan Creek near Jordan Valley, 

h Computed from staff-gage reading.
204 WEISER RIVER BASIN 

Weiser Irrigation District Canal near Weiser, Idaho

Location.- Water-stage recorder, lat. 44 Q 15', long. 116°51', in sec. 32, T. 11 N., R. 4 

w., 3-q: miles downstream from headworks of canal and 7 miles east of Weiser.

Records available.- April 1920 to September 1947 (winter records fragmentary).

Extremes.- Maximum discharge during year, 217 second-feet July 1 (gage height, 3.08 feet); 

minimum not determined; may have been practically dry at times during period of no record.

1920-47: Maximum discharge, 221 second-feet July 15, 1932; maximum gage height, 3.43 

feet May 5, 1926; no flow at times when gates were closed.

Remarks.- Records good except those below 5.0 second-feet, which are poor. Canal diverts 

water from Weiser River in sec. 35, T. 11 N., R. 4 W., 3c miles above station for irrigation of about 9,000 acres included in projects of Weiser and Weiser Bench Irrigation 

Districts. One farm lateral diverts a quarter of a mile above station.

Cooperation.- Water-stage recorder graph furnished by Weiser Irrigation District.

Discharge, in second- feet, water October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

148

148

149

152

152

151

148

145

146

141

127

93

73

68

59

59

58

56

5R

56

55.

58

60

53

47

42

46

45

42

43

42

Nov.

42

4E

42

42

42

42

42

42

41

39

39

39

4O

40

41

40

35

35

38

40

36

35

33

37

35

35

36

31

30

30

~

Dec.

_

-

-

-

-

_

-

-

-

-

_

-

12

IE

13

13

13

-

-

-

.

-

-

-

-

_

-

-

-

-

~

Jan. Feb.

-

-

-

-

-

.

-

-

-

7 .8

7.8

12

11

5.7

4.1

3.7

3.7

-

-

-

_

_

-

-

-

_

_

-

_

-

-

Month

October. ... ...............................

November . ........................ .........

December 13-17 . . ...........................

Calendar year ......................

January .................................. .

February 10-17 . .............................

March 26-31 ...................... .........

April ......................................

May. .......................................

June .......................................

July.. .....................................

August .....................................

September ..................................

Water year ...... ...............

Mar.

_

-

-

_

-

_

-

_

_

-

_

_

-

-

-

_

-

_

-

-

_

_

-

-

-

?.S

E.5

2.5

2.5

2.5

2 . 5

Apr.

2.5

2.5

a2.5

2.5

2.5

'2.9

2.9

2.5

2.5

58

107

a!06

104

107

110

112

116

112

113

119

119

117

116

131

163

163

163

168

173

176

-

Secondfoot-days

2,719

1,141

63

-

55 8

isio

5 ,926

6^034

5,647

5,073

-

May

186

192

194

196

197

195

196

197

196

197

192

189

192

190

189

189

189

189

188

188

187

189

189

190

. a!90

190

Maximum

152

4E

13

-

12

2 5

176

197

212

213

192

190

-

June

191

187

187

188

187

188

172

73

60

55

166

168

168

168

166

166

167

167

167

176

IBS

186

184

199

212

210

211

212

211

210

-

Minimum

42

30

IE

-

3.7

2.5

2.5

186

55

158

175

127

-

July

213

212

208

202

197

200

183

191

200

185

188

185

173

161

158

165

182

203

208

209

207

208

209

204

206

205

202

199

189

188

194

Aug.

189

189

184

180

178

177

179

176

177

a!78

180

182

183

189

187

182

178

175

175

176

179

179

181

186

186

189

192

188

188

185

182

Mean

87.7

38. C

12. 6

-

6 . 98

2.5O

191 '

173

195

182

169

-

Sept.

179

178

180

176

177

166

169

177

187

190

187

182

177

171

173

174

170

170

171

170

169

166

165

160

158

157

154

153

a!40

127

Runoff in 

acre-feet

5,390

2,260

125

-

Ill

30

5,310

11,750

10,290

11,970

11,200

10,060

-

No gage-height record: discharge interpolated between gate changes.
WEISER RIVER BASIN 205

Mann Creek near Weiser, Idaho

Location.- Staff gage, lat. 44°24', long. I16°54 I , in sec. 11, T. 12 N., R. 5 W., at 

Kichards Ranch, 11 miles northeast of Weiser and 12 miles upstream from mouth.

Drainage area.- 56 squere miles.

Records available.- March 1911 to September 1913, July to November 1920, Ap-il 1937 to 

September 1947.

Average discharge.- 12 years (1911-13, 1937-47), 43.0 second-feet.

Extremes.- Maximum discharge observed during year, 157 second-feet Feb. 13; maximum gage 

neignt, 4.5 feet Feb. 12 or 13 (ice jam) from floodmark; minimum observed, 0.4 secondfoot Aug. 28.

1911-13, 1920, 1937-47: Maximum discharge, 1,540 second-feet Mar. 27, 1940 (gage 

height, 5.45 feet, from floodmark, site and datum then in use), from rating curve 

extended above slope-area determination at gage height 4.21 feet; no flov Aug. 18 to 

Sept. 22, 1937, July 31 to Sept. 13, 1939.

Remarks.- Records fair except those for period of ice effect, which are poor. Gage read 

twice daily. One diversion above1 station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

?3

24

25

26

27

28

29

30

31

Oct.

2.9

4.0

4.3

4.3

4.0

4.0

5.2

5.2

4.9

4.9

4.6

4.6

4.6

4.3

4.3

4.3

 4.3

4.6

4.9

5.2

6.6

7.2

8.6

6.9

6.9

8.6

6.9

5.8

5.2

6.2

5.8

Nov.

6.2

4.9

3.2

5.5

5.5

5.8

5.8

6.?

5.2

6.2

6.2

5.2

4.6

5.8

5.8

4.6

6.9

8.6

21

16

8.0

8.3

16

12

11

14

79

95

38

26

-

Dec.

22

18

17

18

38

44

26

27

24

19

23

*50

54

64

53

41

36

30

34

29

24

21

20

18

16

17

17

9.9

16

14

 12

Jan.

12

11

10

10

10

1111

11

10

10

9

9

9

9

9

9

9

9

9

9

9.0

9.4

10

10

9.9

12

10

8.6

9.4

9.0

9.9

Feb.

9.4

9.4

9.4

9.0

9.0

9.9

9.9

9.4

9.9

11

*11

68

146

50

56

70

68

51

40

39

39

36

42

44

42

38

38

39

_

-

-

Month

December ...................................

Calendar year 1946 ......................

Janu 

Febr

Apri 

May

1. .....................................

September. .................................

Water year 1946-47 ......................

Mar.

38

32

29

29

28

30

26

26

26

89

55

47

40

53

66

68

98

113

96

104

125

106

102

115

78

82

100

87

91

87

85

Apr.

75

76

66

66

63

63

61

59

63

51

50

50

56

66

70

82

83

82

83

80

80

76

64

61

61

59

61

61

63

63

-

Secondfoot-days

851.9

16,488.0

303.2 

1,013.3 

2,151

1,994 

939

379.5

100.6

41.0

47.7

8,431.8

May

61

58

63

61

61

50

44

44

45

40

34

34

30

32

30

25

22

20

18

16

15

16

15

15

14

12

11

13

13

13

14

Maximum

95

64

381

12 

146 

125

83 

63

25

7.2

1.7

2.6

146

June

14

13

23

19

14

14

14

23

25

20

18

16

15

13

8.6

10

7.7

5.9

9.0

10

9.5

9.0

9.0

8.6

8.2

8.6

9.5

8.6

8.6

7.7

-

Minimum

3 2

9.9

1.6

8.6 

9.4 

26

50 

11

5.9

1.4

.4

.7

.4

July

7.2

6.8

6.8

5.4

5.0

4.7

4.7

4.4

4.1

3.5

3.2

3.8

3.8

3.5

2.9

2.6

2.6

2.3

2.0

2.0

2.0

1.8

1.7

1.7

2.0

2.0

1.8

1.4

1.7

1.7

1.5

Aug.

1.5

1.5

1.5

1.4

1.5

1.5

1.7

1.7

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.2

1.2

1.2

1.4

1.5

1.5

1.5

1.4

1.2

.9

.4

.7

.7

.7

Hear

14 9

27.5

45.2

9.78 

36.2 

69'. 4

66.5 

30.3

12.6

3.25

1.32

1.59

23.1

Sept.

0.7

.7

1.0

1.2

1.0

1.0

1.8

2.3

1.8

1.8

1.8

1.7

1.5

1.4

1.4

1.7

2.6

2.0

2.0

1.8

1.8

1.8

1.5

1.8

1.5

1.4

1.7

1.5

1.7

1.8

-

Runoff in 

acre- feet

325

oac

Ij690

32,700

601 

2,010 

4,270

3,960 

1,860

753

200

81

95

16,730

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Jan. 1-20.
206 WEISER RIVER BASIN

Monroe Creek above Sheep Cresk, near Weiser, Idaho

Location.- Staff gage, lat. 44°20', long. 116 0 56', in SW£ sec. 34, T. 12 N., F. 5 W., on 

farm road bridge adjacent to U. S. Highway 95, 0.5 mile above Sheep Creek and 6 miles 

north of Weiser.

Records available.- October 1945 to September 1947.

Extremes.- Maximum discharge observed during year, 142 second-feet Feb. 12 (gage height, 

STTtTTeet); no flow about Aug. 1 to Sept. 7. Sept. 16, 17.

1945-47: Maximum dischat-ge observed, 170 second-feet Mar. 18, 19, 1946 (gage 

height, 2.40 feet); no flow about Aug. 1 to Sept. 7, Sept. 16, 17, 1947.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation and storage in Barton Reservoir.

Discharge, in second-feet, water year October -1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Oct.

1.9

1.9

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

1.9

1.9

1.9

1.9

al.5

al.O

\

I a. 5

.5

a. 4

.4

.4

.5

.5

.4

Nov.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.6

.7

.7

) 0

1.0

.7

1.0

1.0

1.3

1.4

1.4

1.4 

2.3

3.8

80

38

19

9.0

8.0

-

Dec.

9.0

8.0

8.0

8.5

9.0

9.0

15

10

9.0

9.0

9.0

*10

9.0

9.0

9.0

8 .5

8.0

8.0

8.0

8.0

8.0

7.3

6.5 

5.8

5.8

5.8

5.8

6.2

6.2

6.2

6.2

Jan.

6.2

6.2

6.2

5.4

5.4

5.4

5.4

5.4

5.4

4.7

4.7

4.3

4.3

4.3

4.3

4.3

b4.5

b4.5

b4.5

b4.5

5.0

5.4

5.8 

5.4

5.0

5.0

*4.7

b4.5

b4.5

b4.5

b4.5

Feb.

b4.5

b4.5

b4.5

b4.5

b4.5

4.7

5.0

5.0

5.4

7.3

*4.3

86

74

64

28

22

21

19

17

15

14

14

14 

15

14

13

11

11

_

_

-

Month

December . ..................................

Calendar year 1946 ......................

April ................................. ....

May........................................

July.. .....................................

September. .................................

Water year 1946-47 ......................

Mar.

12

13

11

12

13

14

13

14

17

58

29

18

16

14

15

14

13

13

13

12

11

11

10 

9.0

as. 3

7.6

aS.o

Apr.

t

 a8

6.6

> a6

4.7

3.9

4.2 

3.9

4.2

3.7

3.4

2.2

1.0

.5

-

Secondfoot-days

249.8

4,086.4

154 2

25 1

6.1

4.4

1,781.2

May

0.4

.4

.4

.3

.3

.3

.2

.3

.3

.3

.2

.2

.3

.2

.2

.1

.1

.1

.1

.2

.2

.2

.2 

.2

.2

.2

.2

.2

.2

.2

.2

Maximum

15

130

.4

86

June

0.2

.2

.3

.3

.2

.2

.3

3.4

3.4

2.7

2.2

1.7

1.2

.7

.6

.5

. a. 5

-

Minimum

.4

5.8

.2

4.3

.5

0

O

July

\ a. 3

1 a.l

Aug.

Mean

8.06

11.2

18.1

5.74

.20

.15

4.88

Sept.

0

0

0

0

0

0

0

.1

.1

.1

.1

.1

.1

.1

.1

0

0

-.1

.1

.2

.2

.2

.2 

.3

.3

.4

.4

.4

.4

.4

-

Runoff in 

acre- feet

495

8,100

342

14

12

8.7

3,530

* Winter- discharge measurement made on this day.

a No gage-height record, discharge interpolated, or computed on basis of weather records and rec 

ords for nearby stations.

b Stage-discharge relation affected by ice.
BURNT RIVER BASIN 207

Unity Reservoir near Unity, Oreg.

Location. - Staff gage and low-water reference mark, lat. 44°30', long. 118°11', in SW-jsee. 21, T. 12 S., R. 3V E., at Unity Dam on Burnt River, just downstream from Job 

Creek, half a mile downstream from confluence of North, Middle, and South Forks of 

Burnt River, and 4% miles north of Unity. Datum of gage is at mean sea level, datum 

of Bureau of Reclamation. (To convert elevations to datum of 1929, add 0.12 foot.)

Drainage area.- 309 square miles.

Records available.- March 1938 to September 1947.

Extremes.- Maximum contents observed during year, 25,220 acre-feet Apr. 16-18, Apr. 28 

to May 6 (elevation, 3,820.0 feet); minimum observed, 590 acre-feet Sept. 30 (elevation, 3,780.0 feet).

1938-47: Maximum contents observed, 25,770 acre-feet Apr. 13, 1942 (elevation, 

3,820.6 feet); minimum observed, that of Sept. 30, 1947.

lor irrigatiun 01 lanas in curno niver irrigabion L/iBi/rico near nereiuru aiiu Drj.ug,cport. Gage read or water surface elevation measured from reference mark once daily 

by employee of Burnt River Irrigation District. Month-end contents computed from 

capacity table based on surveys by Bureau of Reclamation.

Monthly elevation and contents, water year October 1946 to September 1947

Date

Dec. 31.. .................

Calendar year 1946......

Sept. 30.. .................

Water year 1946-47 ......

Elevation 

(feet)

3,800.5

-

3 791 9

3,780.0

-

Contents 

(acre-feet)

4 45°

9,920

-

590

Change In contents 

during month 

(acre-feet)

+3,475

+ 1,198

-4,360

-3,862

d Doubtful gage height; contents computed on basis of gage height 1 foot 

higher.
208 BURNT RIVER BASIN

Burnt River near Hereford, Oreg.

Location.- Water-stage recorder, lat. 44°30 I , long. 118 0 11', in SE£ sec. 21, T. 12 S., R. 

37 hi., at entrance to canyon, 1,250 feet downstream from Unity Dam, 0.7 mile downstream 

from South Fork, and 7 miles west of Hereford. Datum of gage is 3,756.75 fset above 

mean sea level, datum of 1929. supplemental adjustment of 1947.

Drainage area.- 309 square miles.

Records available.- March 1915 to September 1916, October 1928 to September 1947.

Average discharge.- 18 years (1929-47), 7i.4 second-feet.

Extremes.- Maximum discharge during year, 436 second-feet (regulated) Apr. 17, 18 (gage 

neignt, 4.14 feet); no flow part of each day Oct. 12, 13, Dec. 9-13.

1915-16, 1928-47: Maximum discharge, 2,220 second-feet Apr. 17, 1943 (gage height, 

4.06 feet), caused by opening of automatic spillway gates, from rating curve extended 

above 1,300 second-feet by logarithmic plotting; no flow at times; minimum discharge 

before construction of Unity Reservoir Dam, 1.6 second-feet Aug. 31, 1935.

Remarks.- Records good except that for Oct. 12 and those below 10 second-feet, which are 

poor. Many small diversions above station for irrigation; Van Cleve ditch diverts 

below gage but above cableway. Flow regulated by Unity Reservoir (see preceding page) 

and partly regulated by reservoir (capacity, about 700 acre-feet) on South Fork Burnt 

River, 3 miles above mouth.

Discharge, in second-feet, water year October 1346 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.

87

87

86

86

86

84

83

82

80

80

79

a40

9

14

14

15

18

21

21

21

21

21

31

21

20

20

20

20

20

21

21

Nov.

21

21

21

21

21

21

21

21

21

21

21

21

21

22

22

22

23

23

23

23

23

24

24

24

24

26

28

27

27

27

-

Dec.

28

28

28

28

28

28

28

28

11

0

0

0

19

44

44

44

44

44

44

44

44

44

44

53

59

59

69

74

74

74

74

Jan.

74

74

74

74

74

74

74

74

74

74

74

74

74

74

74

74

73

73

72

72

72

71

71

69

69

69

69

69

69

69

69

Feb.

69

69

69

69

69

69

69

59

69

69

69

69

42

24

24

24

24

24

24

24

19

17

17

18

18

18

18

18

_

_

-

Month

December ...................................

Calendar year 1945 ......................

March. .....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

18

18

18

14

15

9

8

8

7

7

7

9

8

8

8

10

10

10

10

10

10

10

10

12

14

14

14

15

15

15

52

Apr.

 15

129

260

294

310

284

235

223

183

134

40

13

16

19

31

111

294

433

430

360

326

191

191

202

178

152

122

122

159

150

-

Secondfoot-days

1,319

685

1,230

43,179

2,340

1,171

373

5,535

4,529

3,530

2,827

2,908

2,698

29,045

May

168

210

210

210

210

189

152

139

132

133

130

125

130

138

124

139

136

130

134

134

120

148

147

143

140

139

139

137

134

131

130

Maximum

87

28

74

663

74 .

69

32

433

210

133

108

108

116

433

June

130

128

126

126

126

125

123

136

120

132

126

132

136

125

122

126

126

124

130

115

109

106

105

105

104

100

96

100

108

104

-

Minimum

9

21

0

O

69

17

7

13

120

96

72

77

57

0

July

105

100

98

106

102

100

98

102

102

101

106

108

, 100

98

98

92

83

82

80

79

79

79

79

79

79

79

79

79

80

80

95

Aug.

106

80

79

79

78

77

84

87

101

106

102

103

102

102

98

87

93

79

91

91

80

88

105

108

104

102

102

101

100

98

97

Mean

42 5

23.8

39 7

116

72.3

41.8

13.0

184

146

118

91.2

93.8

89.9

79.6

Sept.

96

95

93

91

89

88

87

88

86

84

82

80

80

79

78

77

83

88

86

78

66

57

87

112

116

111

1U5

111

116

109

-

Runoff in 

acre- feet

3,830

1,360

2,440

83,650

4,440

2,320

740

10,980

8,980

7,000

5,610

5,770

5,350

57,610

a No gage-hetght recordj discharge interpolated.
POWDER RIVER BASIN 209

Powder River a- Salisbury, Oreg.

Location.- Water-stage recorder, lat. 44°39', long. 117°52', In NE$ sec. 36, T. 10 S R

ay E -. 700 feet downstream from Salisbury siding of Sumpter Valley Railroad and Stices

Gulch and 8j miles south of Baker. * Datum of gage Is 3,632.31 feet above mean sea level

datum of 1929, supplementary adjustment of 1947. 

Drainage area.- 219 square miles (revised). 

uecoras available.- December 1903 to August 1914 and October 1928 to September 1947 In

reports or Ueologlcal Survey. January 1904 to July 1914 and June 1926 to September 1936

In reports of State engineer.

Average discharge.- 29 years (1904-13, 1926-28, 1929-47), 109 second-feet. 

Extremes.- Maximum discharge during year, 657 second-feet May 8 (gage height, 4 40 feet)-

minimum, 4.5 second-feet Sept. 6, 7 (gage height, 1.13 feet).

1903-14, 1926-47: Maximum discharge, 1,820 second-feet Mar. 20, 1910 (gage height,

7.05 feet, site and datum then in use); no flow Aug. 31, 1909, Sept. 7, 1?31. 

Remarks.- Records good except those for periods of ice effect, which are poor. Diversions

above station for iT-

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to May 7 May 8 to Sept. 30

1.2 7.5 1.6 43 2.7 243 1.1 3.3

1.3 13 1.8 72 3.2 351 1.2 7.4

1.4 21 2.0 107 3.8 495 1.3 13

1.5 31 2.3 163 4.3 629 Note.- Same as

preceding table

above 1.3 feet.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

11

11

11

11

12

11

11

13

12

12

12

12

12

12

13

13

13

14

14

18

24

29

32

37

36

35

38

33

30

27

28

Nov.

29

b27

b26

b25

b29

30

26

24

b22

25

24

25

b25

b25

B22

b22

27

29

42

41

37

36

43

44

43

44

60

75

75

55

-

Dec.

54

50

50

57

sa57

54

51

50

47

50

93

125

161

171

125

75

68

b66

b63

b60

b57

b54

51

58

58

58

b55

b52

b49

b46

Jan.

b45

b43

b42

b42

b42

b42

b45

49

51

b49

b47

b46

b45

b45

b44

b44

b45

46

46

51

56

53

72

94

123

161

131

84

b78

b74

69

Feb.

86

102

107

74

69

62

60

56

54

50

49

121

121

103

96

111

116

114

107

103

109

125

142

142

134

121

107

103

.

-

Month

October. ...................................

November ...................................

December . ..................................

Calendar year 1946 ......................

January .................................. .

February. ..................................

March. .....................................

April. .....................................

May........................................

June .......................................

July... ....................................

August .....................................

September. .................................

Water year 1946-47 ... ..................

Mar.

100

98

94

91

80

70

77

77

75

114

125

96

93

100

118

150

239

329

349

340

329

338

336

296

258

227

199

193

199

217

f221

Apr.

f203

195

189

177

171

157

142

140

138

131

112

112

127

167

231

279

322

365

353

338

300

264

239

227

217

217

235

254

283

300

-

May

283

360

503

590

601

604

609

632

590

455

369

329

311

287

272

264

260

245

235

233

229

229

219

203

203

203

207

205

183

169

177

Seoond u 

foot-days

597

1,057 75

2,123 171

50,458.7 836

1,904 161

2,744 142

6^585 365

10,259 632

3,901 211

775.1 56

245.3 11

214.5 10

36,032.9 632

June

173

203

211

195

175

171

161

179

205

197

185

167

150

138

127

123

127

114

102

98

91

77

75

74

66

60

64

69

66

58

-

Minimum

11

22

46

8.6

42

49

70

112

169

58

5.8

4 . 9

4.9

July

56

54

49

43

44

41

32

29

28

27

28

25

23

22

21

21

20

19

19

18

24

15

15

16

16

12

13

14

12

9.1

10

Aug.

11

11

11

11

11

11

9

8

8

8

9

9

9

8

8

7

7

6

6

6

6

5

5

5

5

6

6

6

6

5

6

Mean

19.3

35. 2

ea'.s

138

61.4

98 . 0

182

220

331

130

25.0

7.91

7.15

98.7

.1

.5

.5

.5

.1

.1

.1

.5

.5

.4

.0

.6

.2

.2

.2

.8

.8

.8

.8

.2

.6

.6

.2

.8

.2

Sept.

5.8

5.4

5.4

4.9

4.9

4.9

4.9

5.8

5.8

5.8

5.8

5.8

5.8

5.8

6.2

6.6

6.6

7.4

8.0

8.5

8.5

9.1

9.6 10 

10

10

10

9.6

9.1

8.5

-

Runoff in 

acre-feet

1 180

2^100

4,210

100,100

3,780

5,440

11,160

13,060

20,350

7,740

1,540

487

42S

71,470

b Stage-discharge relation affected by ice.

f Computed on basis of partly estimated gage-height
210 POWDER RIVER BASIN

Powder River near Haines, Oreg.

Location.- Water-stage recorder, lat. 44°56', long. 117°57' , in Sj sec. 21, T. VS., R. 

39 K., a tenth of a mile upstream from Muddy Creek, 1 mile downstream from Rock Creek, 

and 1'.7 miles north of Haines.

Drainage area.- 572 square miles.

Records available.- October 1946 to September 1947.

Extremes.- Maximum discharge during year, 458 second-feet May 11 (gage height, 3.75 feet); 

minimum, 2.5 second-feet Aug. 6.

Remarks.- Records good except those for periods of ice effect, no gage-height record, or 

snit'ting control, which are fair. Many diversions above station for irrigation; no 

seasonal regulation.

Rating tables, water year 1946-47, except periods of ice effect or shifting control 

(gage height, in feet, and discharge, in second-feet)

Oct. 2 to Pet). 11

7.5

12

1.0 

1.3

1.8

0.1 

.2 

.3

.4

2.5

5.5

9.5

14

Feb. 12 to Sept. 

0.6 25

1.3 

1.7

2.1 

2.9

188

309

468

.5 19 1.7 135 

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

30

31

Oct.

a7.5

7.5

a7.5

a7.5

a!2

all

all

a!3

al2

a!2

a!2

a!2

12

12

13

13

13

13

13

14

15

18

21

20

27

35

37

37

38

38

37

Nov.

38

36

33

29

34

38

48

40

31

38

41

40

40

40

37

28

28

41

43

51

55

53

73

75

72

74

78

86

83

78

-

Dec.

74

68

68

67

71

76

75

73

*71

71

73

»94

107

114

130

*130

114

b95

88

93

93

93

78

70

. 65

73

83

b70

b54

b46

35

Jan.

b32

t>33

b33

b28

24

26

28

30

31

33

35

36

37

b38

b36

38

b33

b32

31

32

33

34

36

39

44

62

b6 3

b6 3

56

b47

b43

Feb.

43

54

64

74

86

88

88

85

8488-

96

328

*231

225

242

261

249

226

216

202

196

199

206

212

205

181

177

148

_

_

-

Month

December . ..................................

Calendar year ......................

April ............................... .......

May........................................

July.. ................................. ...

September ..................................

Water year 1946-47 ......................

Mar.

165

178

180

173

160

142

143

148

152

188

220

216

191

174

170

171

180

194

219

254

279

287

290

293

267

226

202

185

171

165

164

Apr.

173

175

168

162

156

154

144

139

152

138

129

112

94

88

80

85

111

156

189

213

203

194

171

122

76

67

52

31

23

25

SecondToo t~days

2,512

_

4 554

143

28,679

May

20

17

38

103

135

157

216

314

409

451

424

340

256

192

153

127

105

97

78

56

38

25

23

21

21

23

23

26

20

24

33

Maximum

130

"

293

213

S5

451

June

34

46

140

191

199

195

182

231

334

301

280

238

210

194

177

169

164

138

109

88

75

56

44

36

24

16

21

26

24

20

-

Minimum

35

_

43

4

3

July

18

17

15 

14

14

16

18

10

10

9.5

10

11

9.5

8.5

7.5

7.5

9.5

10

8.5

8.5

8.5

8

7.5

7

6.5

6

5.5

5

4

5

5

Aug.

5

4.5

4.5

4.5

4.5

4

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3

3

3.5

3.5

3.5

3.5

3.5

4

4.5

4

3.5

4

4

4

4

4

Mean

81.0

_

4.77

78.6

Sept.

4

4.5

4

4.5

4.5

4.5

4.5

4.5

5

5

5.5

5.5

5.5

5.5

5.5

5

4.5

4.5

4.5

4.5

4.5

4.5

5

4.5

5

4.5

4.5

5

5

5

Runoff in 

acre-feet

4,980

_

595

284

56,870

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station at Salisbury.

b Stage-discharge relation affected by ice.

Note.- Shifting-control method used Mar. 22 to Apr. 19, Apr. 24 to May. 8.
POWDER RIVER BASIN 211

Powder River near Robinette, Oreg.

Location - Staff gage, lat. 44°46', long. 118°04', in SE^sec. 22, T. 9 S., R. 46 E., 

downstream from all tributaries, 2 miles northwest of Robinette and 2i miles upstream 

from mouth.

Drainage area.- 1,710 square miles.

Records available.- September 1928 to September 1947.

Average discharge.- 19 years, 476 second-feet.

Extremes.- Maximum discharge observed during year, 2,230 second-feet May 10 (gage height, 

4.2fc> feet); minimum observed, 67 second-feet Aug. 14.

1928-47: Maximum discharge observed, 4,180 second-feet June 15, 16, 1933 (gage 

height, 6.9 feet, site and datum then in use): minimum observed, 18 second-feet Sept. 

2-10, 1930.

Remarks.- Records fair except those for periods of ice effect and July to September, which 

are poor. Gage read twice daily. Many diversions above station for irrigation, none 

below. One canal with capacity of about 5 second-feet diverts around station on left 

bank.

Rating table, water year 1946-47, except periods of ice effect 

(gage height, in feet, and discharge, In second-feet)

0.5 62 1.4 270

.7 90 1.7 390

.9 128 2.0 525

1.1 175 2.5 790

3.0 1,120

3.5 1,520

4.O 1,970

4.5 2,470

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

132

135

143

150

155

155

155

155

158

162

158

155

155

160

160

168

162

160

168

162

172

181

193

211

226

242

256

278

282

298

306

Nov.

318

330

278

266

256

226

205

193

187

175

187

232

342

399

412

422

430

417

489

453

422

408

270

238

235

26Q

314

430

370

298

Dec.

274

314

314

298

298

294

294

278

249

*246

310

502

670

702

605

498

366

350

330

318

286

266

263

238

229

214

220

266

246

217

b!80

Jan.

b!70

b!70

bl'70

b!50

b!40

b!40

b!60

b200

242

220

b210

b200

b!80

b!60

b!60

b!80

b210

b230

b260

b3OO

338

346

334

350

306

298

256

226

226

211

223

Feb.

235

282

302

322

334

346

399

535

719

790

874

1,220

1,390

* ,560

,420

,330

,120

,040

880

820

686

640

645

680

670

580

555

550

-

-

-

Month

October. ...................................

November. ........................ .........

December . ..................................

Calendar year 1946 ......................

January .................................. .

February. ............................ .....

March. .....................................

April ......... ............................

May.. ................................ ... .

June .......................................

July ..................................... .

August .....................................

September. .................................

Water year 1946-47 ................ ... .

Mar.

535

535

540

530

540

540

570

580

570

590

610

650

692

702

724

766

766

766

760

730

730

742

748

766

766

820

808

808

850

844

820

Apr.

1

1

1

1

Secondfoot-days

5,753

9, 462

10,135

270,259

6,966

20, 924

21, 398

23,836

40,591

29 935

6, 911

3,037

3,155

182,103

826

814

814

814

760

675

640

635

645

640

600

580

570

645,

772

826

892

020

000

040

020

973

898

838

784

748

778

826

931

832

-

May

904

,090

,560

,610

,750

,850

,060

,160

,010

,660

,460

,380

,340

,240

,180

 ,120

,01O

917

917

973

938

987

966

959

1,020

,080

,190

,330

,290

,300

,340

Maximum

306

489

702

2,80O

350

1,560

850

1,040

2,160 

1,460

394

135

120

2,160

June

1,380

1,400

1,350

1,380

1,400

1,420

1,430

1,460

1,390

1,400

1,380

1,240

1,220

1,140

1,060

1,010

994

1,020

832

808

d700

.635

585

550

530

507

507

430

399

378

-

Minimum

132

175

18C

108

140

235

530

570

904

37£

137

70

88

70

July

394

378

374

358

342

350

342

330

310

?70

246

235

208

187

170

165

168

162

160

155

155

150

146

143

148

152

150

146

137

141

139

Aug.

135

132

128

135

124

101

95

88

80

82

82

87

78

70

76

84

38

92

97

101

94

99

104

114

104

103

97

94

90

88

95

Sept.

99

103

99

94

88

97

118

120

118

120

114

106

112

114

114

112

110

116

114

112

106

103

97

97

92

90

95

97

101

97

M«,n Runoff in Mean acre-feet

186 11,410

315 18,770

327 20,100

740 536,100

225 13,820

747 41,500

690 42,440

795 47,280

1,309 80,510

998 59,380

223 13,710

105 e'.zeo

499 361,200

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of records for stations at Salisbury and 

near Haines .
312 POWDER RIVER BASIN

Wolf Creek near North Powder, Oreg.

Location.- Water-stage recorder, lat. 45°OS 1 , long. 118°01", in SE£ sec. 11, T. 6 3., R. 

3tt E., 5 miles northwest of North Powder.

Drainage area.- 32.9 square miles.

Records available.- May 1913 to July 1914 (incomplete), September 1946 to September 1947.

Extremes.- Maximum discharge during year, 162 second-feet Apr. 17 (gage height, 3.24 feet), 

rrom rating curve extended above 99 second-feet; minimum, 0.5 second-foot Aug. 21.

1913-14, 1946-47: Maximum discharge observed, 260 second-feet Apr. 14, 1914 (gage 

height, 2.70 feet, site and datum then in use); minimum observed, that of Aug. 21, 1947.

Remarks.- Records fair except those for December to February, which are poor. Many small 

diversions above station for irrigation.

Discharge, in second-feet, 1946-47 

1946

Day

Sept. 23 

24 

25 

26

Discharge

1.5 

1.5 

1.3 

1.3

Day

Sept. 27 

28 

29 

30

Discharge

1.3 

1.5 

1.5 

1.3

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

1.1

1.1 

1.1 

1.1 

1.9

1.7 

1.9 

1.9 

1.9 

1.9

.9 

.9 

.7 

.7 

.7

.7

.9 

.9 

.9 

.7

.1 

.4 

.4 

.7

.9

4.2 

2.9 

2.3 

2.7 

2.9 

2.5

Nov.

3.4 

2.1 

1.7 

2.5

2.9

3.1 

3.1 

2.9 

2.9 

3.1

3.1 

2.5 

2.5 

3.4 

2.9

2.5 

3.1 

3.4 

4.2 

3.4

3.1 

3.4 

4.5 

3.9 

3.9

3.4 

5.1 

5.9 

6.2 

3.7

Dec.

5.1 

3.9 

4.2 

4.2 

4.5

4.8 

4.5 

4.5 

*4.5 

4.8

7.9 

29 

*27 

25 

23

*16 

b!4 

b!3 

13 

12

12 

10 

7.9 

7.6 

7.9

7.9 

6.9 

b5.5 

b4.5 

b4.0 

b3.5

Jan.

b3.5 

b3.5 

b3.5 

b3.0 

b3.0

b3.5 

b4.0 

b4.5 

4.8 

5.1

4.8 

4.2 

4.2 

b3.5 

b2.5

b2.5 

b3.0 

b3.0

b3.0 

b3.0

b3.0 

3.1 

3.1 

3.9

3.4 

b3.4 

b3.0 

b3.0 

b3.0 

3.4

Feb.

3.4 

3.4 

3.7 

3.1 

3.1

3.1

2.9 

2.9 

2.9 

2.9

2.9 

3.9 

*5.3 

5.1 

5.6

6.6 

7.3 

7.9 

9.0 

9.3

9.7 

11 

14 

16 

16

b!5 

b!4 

b!3

Mar.

b!4 

13 

13 

12 

11

11 

10 

10

10 

12

12

11 

11 

13 

15

24 

36 

49 

5S 

66

71 

75 

67 

58 

50

44 

39 

38 

41 

48 

49

Apr.

50 

49 

47 

44 

39

35 

31 

33 

33 

33

33

34 

41 

63 

93

96 

111 

142 

138 

131

114 

96 

87 

79 

76

82 

90 

100 

104 

99

May

89

98 

98 

93 

84

75 

63 

57

55 

51

40 

36 

28 

24 

23

21 

20 

22 

23 

22

22 

19 

15 

15 

15

14 

11 

12 

11 

13 

14

June

13 

16 

16 

17 

14

12 

12 

14 

25 

28

24 

19 

20 

20 

19

21 

21 

17 

19 

18

17

15 

9.0 

5.1

3.4

2.7 

3.1 

5.9 

9.0 

7.6

July

5.6 

5.3 

6.6 

5.9 

5.3

5.1 

5.6 

5.1 

4.8 

4.8

4.8 

4.8 

4.8 

4.8 

4.5

3.9 

3.9 

2.9 

1.7 

1.7

1.7 

1.5 

1.3 

1.1

1.3

1.3 

1.3 

1.5 

1.0 

1.0 

.9

Aug.

1.5 

2.5 

1.7 

1.5 

1.1

1.1

1.0 

1.0 

1.1 

1.1

1.1

1.0 

.9 

.9

1.0 

1.1 

1.1 

1.1 

.8

.6 

.7

.8 

.8 

.8

.8 

.8 

.8 

.8 

.9 

1.1

Sept.

0.9 

.9 

.9 

.9 

.9

.9 

1.7 

2.3

2.1

2.1

1.9 

1.7 

1.5 

1.7 

1.5

1.7

1.9 

2.1 

2.3 

1.7

1.7 

1.5 

1.5

1.5 

1.5

1.9 

2.1 

2.3

3.1

1.9

* Winter discharge measurement made on this day. 

Is Stage-discharge relation affected by ice.

Monthly discharge, in second-feet, 1946-47

Month

Sept 

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Bay.

June 

July 

Augu 

Sept

Wa

ember 23 

ber 1946

-30, 1946. .....................

mber. ..................................

lendar y 

ary 1947

ear

ember. .................................

ter year 1946-47 ......................

Secondfoot-dayS

11.2

69.6 

101.8 

302.6

-

108.1 

203.0 

992 

2,203 

1,183 

442.8 

105.8 

32.4 

50.6

5,794.7

Maximum

1.5

4.2 

6.2 

29

-

5.1 

16 

75 

142 

98 

28 

6.6 

2.5 

3.1

142

Minimum

1.3

1.1

1.7 

3.5

-

2.5 

2.9 

10 

31 

11 

2.7 

.9 

.6 

.9

.6

u Runoff in Mean acre-feet

1.40 22

2.K5 138 

3.39 202 

9.76 600

-

3.49 214 

7.25 403 

32.0 1,970 

73.4 4,370 

38.2 2,350 

14.8 878 

3.41 210 

1.05 64 

1.69 100

15.9 11,500
IMNAHA RIVER BASIN 213

Imnaha River above Gumboot Creek, Oreg.

Location.- Water-stage recorder, lat. 45°11', long. 116°53', in sec. 30 or 31, T. 4 S., 

H. 48 K., 0.1 mile upstream from Gumboot Creek and 5 miles northeast of Coverdale forest 

guard station.

Records available.- October 1944 to September 1947.

Extremes.- Maximum discharge during year, 1,490 second-feet May 7 (gage height, 3.90 feet); 

minimum recorded, 41 second-feet Nov. 16 (gage height, 0.66 foot) , but flow may have 

been less during periods of ice effect or no gage-height record.

1944-47: Maximum discharge, 1,540 second-feet May 8, 1946 (gage height, 3.97 feet); 

minimum recorded, 14 second-feet Dec. 10, 1944.

Remarks.- Records good except those below 100 second-feet, which are fair, and those for 

periods of ice effect or no gage-height record, which are poor. No regulation or diversion above station.

Rating tables, water year 1946-47, except period of ice effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Mar Mar. 3 to Sept. 30

0.8 56

1.0 62

1.2 115

1.5 17b

1.8 248

2.1 341

0.8 

1.0 

1.2 

1.5 

1.8

62

89

120

180

258

2.1 

2.5 

3.0 

3.5 

4.0

355

515

780

1,120

1,600

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

81

85

78

76

78

75

75

75

74

71

69

69

68

67

66

64

64

64

66

85

106

124

115

96

115

129

101

93

90

87

82

Nov.

87

79

85

93

87

79

79

75

74

76

74

68

71

75

71

62

76

122

321

191

153

141

173

166

151

141

157

184

191

171

Dec.

160

143

137

145

157

160

149

145

133

126

133

147

175

198

P17

186

a!70

a!60

a!90

alSO

168

147

139

115

112

110

106

92

a75

*b60

b60

Jan.

' a80

'

^ a60

. alOO

Feb.

 a80

h84

> al40

_

-

Month

October ....................................

November. ..................................

December. ..................................

Calendar year 1945 ......................

January. ........................ ..........

February. ..................................

March.. ....................................

April ......................................

Bay. .......................................

June .......................................

July.... ...................................

August .....................................

September. .................................

Water year 1946-47 . ...................

Mar.

a 95

a 100

89

86

83

78

83

79

82

86

83

81

82

89

104

129

165

187

204

212

217

227

214

199

187

180

176

178

190

220

217

Apr.

209

212

202

194

185

176

167

165

167

167

165

169

202

261

324

352

374

362

370

359

334

320

314

301

327

366

415

472

511

498

-

Second 

foot-days

3^573

4,395

106,079

2, 620

3,264

4,402

8,640

26,019

19,066

8, 415

3,465 

2,312

38,759

May

515

720

886

950

977

1,030

1,210

1,290

1,080

828

738

709

692

665

665

682

682

665

698

756

798

786

768

810

886

957

1,030

998

860

828

860

Maximum

129

321

en

1,360

227 

511

1,290

1,080 

400

152

96

1,290

June

853

840

732

682

621

621

660

1,080

924

738

626

590

600

586

595

732

792

726

704

610

524

506

506

524

529

515

476

423

365

366

-

Minimum

64

62

6C

4C

"

16E 

515

366 

154

8£

66

60

July

377

388

400

381

374

381

377

370

359

341

314

298

291

288

282

261

250

238

230

222

212

207

199

194

187

178

173

169

162

158

154

Aug.

152

148

144

142

136

134

129

125

124

122

120

117

115

110

110

107

106

104

101

102

102

100

100

96

94

92

89

86

86

86

86

Mean

119°

14?

291

84.5

117

142

288

839

636

271

112

77.1

243

Sept.

83

82

88

82

81

79

96

92

86

85

82

79

76

75

75

76

79

81

79

75

72

70

68

67

67

71

68

66

66

66

-

Runoff in 

acre feet

5,130

7 090

8°720

210,400

5,200

6,470

8,730

17,140 

51,610

37,820 

16,690

6,870

4,590

176,100

* Winter dischnrg; measurement made on this day.

a No gage-height record; discharge computed .on basis of weather records and records for 

Imnaha.

b Stage-discharge relation affected by Ice. 

h Computed from staff gage reading.
214 IMNAHA RIVER BASIN

Imnaha River at Imnaha, Oreg.

Location.- Water-stage recorder, 1st. 45°34', long. 116°51', in SW£ sec. 16, T. IN., R. 

48 K. , at Irnnaha, three-eighths of a mile downstream from Sheep Creek.

Drainage area.- 705 square miles.

Records available.- June 1928 to September 1947.

Average discharge.- 19 years, 444 second-feet.

Extremes.- Maximum discharge during year, 2,140 second-feet May 8 (gage height, 4.95 feet); 

minimum, 113 second-feet Sept. 22-24 (gage height, 1.94 feet).

1928-47: Maximum discharge, 5,400 second-feet May 23, 1942 (gage height, 6.70 feet), 

from rating curve extended above 1,800 second-feet; minimum observed, 16 second-feet 

Nov. 22, 1931.

Remarks. - Records good except those for- period of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Rating tables, water year 1946-47, except period of Ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to May 8 May 9 to Sept. 30

2.0 150 2.8 450 4.2 1,420 2

2.2 210 3.2 665 4.7 1,890 2

2.5 320 3.7 1,000 '5.2 2,390 2

0 129 2.8 420 4.2

2 191 3.2 620 4.7

5 295 3.7 965 5.2

1,410

1,890

2,390

Discharge, in second- feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

159

194

173

167

179

173

167

170

167

162

159

159

156

156

153

153

153

153

150

167

231

231

270

224

2?4

276

245

228

214

217

204

Nov.

217

201

170

201

204

201

204

194

188

201

194

185

173

204

188

170

198

220

671

594

465

423

495

578

535

485

470

530

594

556

Dec.

b20

475

436

432

450

480

460

450

418

387

410

550

701

848

932

848

653

611

641

566

525

470

428

400

382

374

374

300

270

*259

220

Jan.

270

191

b!70

> a210

. a!40

. a260

Feb.

> a210

*217

414

600

535

515

520

500

480

455

428

414

392

378

382

382

374

352

340

_

-

Honth

October. .................. ........

November ......................... .........

December ................................. .

Calendar year 1946 .................... .

January. ................................. .

February. .......................... ..... .

Harch. ................................... .

April ................................ ... .

Hay. ..................................... .

June ............................... .......

July .......................................

August .....................................

September. .................................

Water year 1946-47 ...... ...............

Mar.

312

324

304

292

276

259

262

259

252

270

284

266

270

292

332

405

540

653

719

738

751

796

770

689

629

605

566

556

583

707

751

Apr.

1

1

1

1

1

1

1

1

Secondfoot-days

5,844

9,909

15,270

215,075

6,761

14^712

24,718

43,350

27 994

10^650

4,536

3,753

177,275

738

713

689

647

611

566

535

520

520

500

485

480

530

695

918

992

,080

,050

,060

,070

9t>2

925

883

842

859

948

,070

,200

,310

,280

-

Hay

,220

,470

,790

,890

,850

,860

,900

,020

,000

,640

,490

,400

,340

,260

,190

,180

,150

,100

,080

,140

,180

,170

,110

,110

,190

,270

,400

,400

,210

,140

,210

Maximum

276

671

932

2,600

600

796

1,310

2,020

1,480

530

191

150

2,020

June

1,180

1,190

1,080

1,040

942

912

935

1,320

1,480

1,230

1,060

958

965

920

898

989

1,150

1,020

997

920

801

745

706

706

719

712

693

626

570

530

-

Minimum

15C

17C

22C

12C

252

48C

1.08C

53C

19i

HE

11!

u:

July

520

515

530

505

480

475

470

456

442

424

416

371

355

343

339

323

303

295

288

274

260

253

250

242

239

232

222

218

211

201

198

Aug.

191

185

175

169

172

169

159

156

156

159

153

153

150

144

141

138

135

132

129

132

144

L41

144

138

135

129

126

124

118

118

121

Mean

189

) 330

) 493

) 589

218

349

475

824

1,398

344

146

125

486

Sept.

iia

113

121

118

116

116

126

150

138

138

132

126

121

118

116

121

129

135

132

126

121

118

113

116

121

135

138

129

126

126

-

Runoff in 

acre- feet

11,590

19,650

30,290

426,600

13,410

19 390

29*180

49,030

85,980

55,530

21,120

9,000

7,440

351,600

» Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis 

records for Grande Ronde River at Troy.

b Stage-discharge relation affected by ice.

ange in stage, weather records, and
SALMON RIVER BASIN 215

Salmon River near Obsidian, Idaho

Location.- Water-stage recorder, lat. 43°58', long. 114°48', in sec. 3, T. 7 N., R. 14 E., 

three-eighths of a mile below irrigation diversion dam, 1 mile upstream f om Lost Creek, 

and 2j miles southeast of Obsidian.

Drainage area.- 94.7 square miles.

Records available.- November 1940 to September 1947.

Extremes.- Maximum discharge during year, 523 second-feet May 7 (gage height, 3.86 feet); 

minimum, 6 second-feet Aug. 27 to Sept. 9.

1940-47: Maximum discharge, 664 seoond-feet May 30, 1943; maximum gage height recorded, 4.74 feet sometime between Dec. 5, 1940, and Jan. 23, 1941 (ice Jam); minimum 

discharge, 2 second-feet Sept. 7-11, 1942, Apr. 1, 1945.

Remarks.- Records good except those for Dec. 16 to Mar. 12, which are poor. Several diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

41

42

38

36

36

35

35

35

35

37

39

44

46

46

48

48

47

47

48

47

51

54

54

50

50

52

50

49

*48

48

48

Nov.

46

45

45

44

45

45

46

45

43

43

43

41

41

41

40

39

40

41

41

40

39

39

38

38

38

38

37

37

37

36

-

Dec.

35

35

37

36

36

35

34

33

33

33

33

33

34

34

33

28

22

25

. 25

Jan.

> 22

Feb.

(*)

23

-

_

-

Month

October. ...... ............................

November ......................... ....... .

December. ................................ .

Calendar year 1946 ......................

January .................................. .

February ...................................

March. ..................... ...............

April ......... ............ ............. .

May. ..................................... .

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 ......................

Mar.

26

j

*32

32

31

32

33

34

34

 35

34

31

30

30

30

30

30

30

30

31

30

Apr.

31

31

31

31

31

31

32

32

32

33

33

33

34

35

40

45

50

49

49

55

61

63

63

60

64

75

92

112

126

120

-

Secondfoot-days

1,384

1,231

914

28,687

682

644

911

1,574

9,475

5,975

2,019

261

644

25,714

May

139

220

339

366

370

399

441

482

482

386

332

303

276

244

237

247

253

253

262

282

285

289

276

269

282

296

328

310

279

269

279

Maximum

54

46

37

439

_

35

126

482

282

113

13

33

482

June

282

282

262

234

211

214

208

228

234

220

208

185

173

166

171

182

211

222

231

231

220

192

171

160

155

157

157

147

137

124

-

minimum

35

36

22

8

_

_

31

139

124

13

6

6

6

July

110

109

113

110

107

107

109

109

104

98

95

74

63

60

54

50

47

34

29

28

30

62

88

86

46

20

17

17

16

14

13

Aug.

13

12

13

12

10

10

10

10

9

9

9

9

8

8

8

8

8

7

7

8

8

7

7

7

7

7

6

6

6

6

6

Mean

44.6

41.0

29.5

78.6

22.0

23.0

29.4

52.5

306

199

65.1

8.4

21.5

70.4

Sept.

6

6

6

6

6

6

6

6

6

14

24

24

28

28

28

30

30

30

30

30

28

28

28

28

29

30

28

30

32

33

-

Runoff in 

acre-feet

2,740

2,440

1,810

56,900

1,350

1,280

1,810

3,120

18,790

11,850

4,000

518

1,280

50,990
216 SALMON RIVER BASIN

Salmon River below Valley Creek, at Stanley, Idaho

Location.- Water-stage recorder, lat. 44°14', long. 114°55', in SE^SEt sec. 34, T. 11 N., 

K. 13 E., three-quarters of a mile downstream from Valley Creek and l£ miles northeast 

of Stanley. Datum of gage is 6,190.32 feet above mean sea level, datum of 1929.

Drainage area.- 535 square miles.

Records available.- July 1925 to September 1947.

Average discharge.- 22 years, 603 second-feet.

Extremes.- Maximum discharge during year, 3,270 second-feet May 9 (gage height, 3.50 feet): 

minimum, 241 second-feet Feb. 28, but may have been less during period of ice effect.

1925-47: Maximum discharge, 5,020 second-feet June 27, 1927 (gage helgtt, 4.41 

feet), from rating curve extended above 4,000 second-feet; minimum, 100 second-feet 

(estimated) Nov. 20-30, 1929.

Remarks. - Records good except those for periods of ice effect or no gage-heigl *; record, 

wnich are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

573

755

597

533

517

502

487

487

472

465

458

465

465

465

465

451

443

443

436

436

533

589

654

549

549

646

549

525

487

494

458

Nov.

472

436

429

458

451

458

465

458

436

443

443

396

390

429

403

377

423

480

630

517

472

494

549

541

517

517

502

494

487

458

-

Dec.

436

458

451

458

458

458

436

429

429

429

436

443

458

487

487

360

270

290

360

383

370

383

370

341

364

383

383

341

300

285

260

Jan.

> *280

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

Mow may ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

* 310

312

312

297

.

_

-

Secondfoot-days

15, 943

14,025

12,196

275,243

8,680

10^031

19 , 629

70,490

57,520

33,381

14,587

11,951

277,109

Mar.

297

307

307

307

302

292

302

302

297

312

312

302

312

307

307

 312

312

318

324

324

329

341

353

347

341

353

341

353

358

377

383

Maximum

755

630

487

2,780

383

1,400

3,200

2,540 

1 450

630

509

3,200

Apr.

377

377

370

370

364

364

358

364

358

358

358

364

403

480

557

597

654

687

687

791

845

883

864

836

883

980

1,100

1,260

1,340

1,400

-

May

1,460

1,730

2,090

2,300

2,380

2,450

2,620

2,880

3,200

2,950

2,480

2,320

2,330

2,080

1,890

1,830

1,820

1,840

1,860

1,960

2,060

2,150

2,180

2,180

2,260

2,360

2,610

2,830

2,540

2,390

2,460

Minimum

436

377

260

260

292

358

1,460

1,380 

638

370

358

-

June

2,500

2,540

2,450

2,270

2,090

2,090

1,930

1,980

2,180

2,080

2,000

1,780

1,650

1,610

1,820

1,710

1,920

2,050

2,120

2,190

2,190

1,920

1,710

1,590

1,570

1,620

1,670

1,610

1,500

1,380

Mean

514

468

393

754

230

310

324

654

2,274

1,917

1,077 

471

398

759

July

1,300

1,280

1,310

1,340

1,340

1,340

1,360

1,410

1,450

1,400

1,350

1,280

1,210

1,160

1,120

1,110

1,070

1,030

980

950

930

921

921

892

836

746

712

687

662

646

638

Per

square 

mile

0.961

OTC O 1 O

.735

1.41

 523

'.579

l!22

4.25

3 58

2.01 

830

.744

1.42

Aug.

630

£

j

1

13

97

89

573

549

j

1

1

33

09

09

502

494

4

4

4

4

4

4

4

4

80

72

65

51

36

23

23

23

443

436

4

4

4

36

36

23

410

410

4

2

2

2

03

96

83

70

370

Sept.

370

364

390

377

364

358

370

383

390

396

403

403

396

390

383

390

509

458

429

416

410

403

390

390

390

410

410

403

403

403

Runoff

Inch is

1.11 

.97

.85

19.12

 60

.60

.70

1 36

4.90

4.00

2 32

I'.Ol

.83

19.25

Acre-feet

31,630

27,820 

24,190

546,000

17,220

17 200

19 90o

38 930 

139 ',800

114,100

86 1 210

28 93O 23)700

549,600

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Dec. 16-19, Dec. 29 to Feb. 25 (no gage-height 

record Jan. 3-7, 11-21, 23-28, 31, Feb. 13-18, 20-25; discharge computed on basis of weather records 

and records for station below Yankee Fork, near Clayton and other stations on nearby streams).
SALMON RIVER BASIN 217

Salmon River below Yankee Fork, near Clayton, Idaho

Location.- Water-stage recorder, lat. 44°16', long. 114°44 I , in sec. 20, T. 11 N., R. 15 

K., a quarter of a mile downstream from Sunbeam Dam and Yankee Pork and 18 miles upstream from Clayton.

Drainage area.- 841 square miles.

Records available.- October 1921 to September 1947.

Average discharge.- 24 years (1922-24, 1925-47), 883 second-feet.

Extremes.- Maximum discharge during year, 6,060 second-feet May 9 (gage heiglt, 8.58 feet); 

minimum daily, 290 second-feet Jan. 15.

1921-47: Maximum discharge, 8,000 second-feet (estimated) June 27, 1927; minimum, 

160 second-feet (estimated) Nov. 25-30, 1929.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. No diversions above station for irrigation except tlose above 

Stanley.

Rating tables, water year 1946-47, except period of ice effect 

[gage height, in feet, and discharge, in second-feet)

Oct. 1 to Apr. 30 May 1 to Sept. 30

2.3 

2.S 

3.0

275

320

415

565

780

3.5 

4.0 

4.5

5.0

5.1

1,090

1,440

1,800

2,200

2,280

2.5 

3.0 

3.5 

4.0 

4.5

491

754

1,040

1,380

1,760

5.0 

6.0 

7.0 

8.5

2,160

3,030

4,070

5,950

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

708

1,000

798

703

676

648

626

615

605

590

575

585

585

585

580

575

570

570

565

565

648

720

840

708

692

822

720

676

605

620

570

Nov.

600

545

520

555

570

570

590

570

545

a540

a520

a470

a530

a540

a490

a530

a560

595

736

642

580

590

648

632

605

610

600

595

585

540

-

Dec.

495

525

525

555

555

555

530

525

535

525

530

540

550

585

*590

505

350

350

450

500

500

500

480

460

490

510

500

450

380

350

340

Jan.

340

340

330

340

370

390

380

370

370

360

360

350

350

3OO

290

330

370

370

380

380

390

400

400

400

400

400

400

370

390

400

»400

Month

October .......................

November ......... ............

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

420

440

420

420

425

415

400

400

405

450

420

430

460

445

445

440

430

410

405

395

410

420

425

410

420

420

410

385

_

-

-

Secondfoot days

20,345

17,203

15,235

394,035

11,420

11,775

15,493

32,371

124,850

88,020

43,894

18,824

15,659

415,089

Mar.

395

420

430

425

430

395

420

425

420

435

440

420

435

435

440

*450

470

510

560

590

620

637

632

590

555

565

525

560

590

642

632

Maximum

1,000

736

59O

4,370

400

460

642

2,250

5,950

4,040

1,940

809

684

5,950

Apr.

605

595

580

565

535

545

520

525

520

510

510

520

595

846

1,080

1,170

1,300

1,280

1,200

1,310

1,430

1,480

1,450

1,350

1,380

1,540

1,810

2,130

2,250

2,240

-

May

2,340

3,100

4,040

4,410

4,420

4,650

5,060

5.6OO

5,950

5,120

4,250

3,860

3,810

3,430

3,180

3,190

3,270

3,320

3,310

3,480

3,700

3,840

3,800

3,770

3,920

4,100

4,640

4,960

4,330

3,980

4,020

Minimum

565

470

340

340

" 290

385

395

510

2,340

1,960

82O

491

476

290

June

4,000

4,040

3,850

3,550

3,220

3,200

2,980

3,040

3,330

3,170

3,080

2,820

2,650

2,620

2,640

2,750

3,020

3,150

3,230

3,280

3,180

2,790

2,490

2,360

2,330

2,400

2,430

2,320

2,140

1,960

-

Mean

656

573

491

1.O8O

368

421

500

1,079

4,027

2 934

lUl6

522

1,137

July

1,840

1,820

1,850

1,870

1,850

1,840

1,840

1,890

1,940

1,860

1,780

1,660

1,560

1,480

1,440

1,420

1,360

1,300

1,250

1,210

1,180

1,150

1,130

1,090

1,040

951

911

882

854

826

820

Per 

square 

mile

0.780

. 681

.584

1.28

. 438

.501

1 . 28

4.79

3 49

1 *68

.722

,_ .621

1.35

Aug.

809

7

7

7

98

70

60

743

722

7

6

6

00

74

58

652

636

6

6

5

20

10

89

573

552

5

5

5

47

37

37

558

547

5

5

5

52

58

37

532

527

5

5

5

4

22

16

06

91

491

Sept.

491

486

522

501

486

476

486

511

511

527

527

516

506

496

491

501

684

610

558

542

537

527

516

506

511

542

532

522

522

516

Runoff

Inches

0.90

.76

.67

17.41

.51

.52

. 69

1.43

5 52

3 . 89

1 .94

. 83

.69

18.35

Acre-feet

40,350

34,120

3O 220

781,500

22 , 65O

23,360

30,730

64,210

247 , 600

174,600

87 ,06O

37,340

31,060

823,300

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis 

near Challis.

Mote.- Stage-discharge relation affected by ice Dec.

881401 O - 50 - 15

of weather records and records for station 

17 to Feb. 2.
218 SALMON RIVER BASIN

Salmon River near Challis, Idaho

Location.- Water-stage recorder, lat. 44°23' , long. 114°15', in sec. 7, T. 12 N., R. 19 E. 

250 feet downstream from Bayhorse Creek and 9 miles south of Challis. Dat'iin of gage is 

5,163.99 feet above mean sea level, datum of 1929.

Drainage area.- 1,800 square miles.

Records available.- October 1928 to September 1947.

Average discharge.- 19 years, 1,305 second-feet.

Extremes.- Maximum discharge during year, 8_J30 second-feet May 9 (gage height, 7.52 feet); 

minimum, 370 second-feet Dec. 18 (gage height, 1.58 feet).

1928-47: Maximum discharge, 10,500 second-feet May 30, 1943 (gage height, 8.07 

feet); minimum, 160 second-feet Dec. 14, 1940.

Remarks.- Records excellent except those for period of ice effect, which are fair. Some 

diversion above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

903

1,510

1,300

1,120

1,070

1,030

1,010

988

974

948

922

922

910

910

903

896

884

878

866

860

896

994

1,150

1,050

1,000

1,100"

1,060

1,010

929

910

866

Nov.

866

818

754

788

818

824

854

842

800

806

818

742

693

782

782

704

754

776

942

994

830

866

896

922

872

884

860

854

842

800

*

Dec.

715

742

742

794

794

794

764

764

770

759

764

782

*794

824

842

764

531

498

682

748

715

720

704

654

693

782

754

693

575

530

500

Jan.

500

500

500

520

570

610

600

600

590

570

570

570

560

510

470

470

560

570

570

590

600

600

600

600

600

590

580

526

550

590

*585

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

Hay

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

632

693

660

638

632

622

590

565

531

575

660

671

704

688

676

710

704

660

622

585

610

654

688

671

649

638

622

580

-

-

-

Secondfoot-days

30,769

24,783

22,187

569,831

17,421

17,930

23,759

42,864

176,430

129,020

71,100

31,683

23,848

611,794

Mar.

570

649

654

644

632

585

616

627

616

622

649

616

632

660

710

748

782

830

878

929

968

994

1,000

916

854

854

818

842

896

994

974

Maximum

1,510

994

842

6,360

610

710

1,000

2,780

8,540

5,830

3,060

1,380

942

8,540

Apr.

929

903

878

866

824

818

788

794

782.

776

764

770

842

1,070

1,420

1,570

1,700

,780

,650

,690

,860

,910

,900

1,770

1,720

1,860

2,130

2,560

2,780

2,760

-

May

2,830

3,680

5,200

6,040

6,060

6,330

7,020

8,040

8,540

7,570

6,260

5,530

5,350

4,950

4,470

4,350

4,510

4,660

4,640

4,900

5,220

5,530

5,460

5,460

5,690

6,060

6,540

7,350

6,470

5,870

5,850

Minimum

860

693

498

498

470

531

570

764

2 , 830

2,910

1,410

782

742

470

June

5,830

5,830

5,550

5,110

4,680

4,560

4,370

4,430

4,780

4,620

4,470

4,080

3,830

3,740

3,780

3,990

4,560

4,740

4,840

4,970

4,780

4,190

3,710

3,490

3,440

3,590

3,590

3,410

3,150

2,910

-

Mean

993

826

716

1,561

562

640

766

1,429

5* 691

4,301

2,294

1,022

795

1,676

July

2,780

2,770

2,860

2,910

2,870

2,870

2,900

3,010

3,060

2,910

2,830

2,640

2,500

2,420

2,370

2,320

2,240

2,140

2,090

2,030

1,990

1,950

1,930

1,870

1,770

1,670

1,580

1,520

1,460

1,430

1,410

Per 

square 

mile

0.552

. 459

.398

.867

 312

.356

.426

.794

3.16

2 39

1.27

 568

.442

.931

Aug.

1,380

1,3

1,2

1,2

50

20

00

1,260

1,220

1,1

1,1

1,3

80

50

10

1,090

1,070

1,C

1,C

1,0

50

30

00

981

955

S

9

e

29

03

96

929

948

9

9

9

22

48

16

884

872

8

8

8

7

60

42

18

88

782

Sept.

782

770

800

806

770

754

742

788

782

812

800

806

782

764

764

764

903

942

854

824

806

794

776

764

759

800

800

782

782

776

Runoff

Inches

0.64

.51

.46

11.78

.36

.37

.49

.89

3.65

2 . 67

1.47

.65

.49

12.65

Acre-feet

61,030

49,160 

44,010

1,130,000

34,550

35,560

47,120

^4q qoo

255^900

141,000

62,840

47,300

1,213,000

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Dec. 30 to Jan. 27.
SALMON RIVER BASIN 219

Salmon River at Salmon, Idaho

Location.- Water-stage recorder, lat. 45°ll l , long. 113°54', in sec. 6, T. 21 N., R. 22 E., 

just upstream from Lemhi River, near Rose ranch buildings, 1,000 feet downstream from 

island, and three-eighths of a mile downstream from highway bridge at Salnon.

Drainage area.- 3,760 square miles.

Records available.- April 1912 to September 1916, July 1919 to September 1947.

Average discharge.- 30 years (1913-16, 1920-47), 1,799 second-feet.

Extremes.- Maximum discharge during year, 10,100 second-feet May 10 (gage height, 7.05 

1'eet); minimum not determined, occurred during period of ice effect or no gage-height 

record.

1912-16, 1919-47: Maximum discharge observed, 16,400 second-feet June 12, 1921 (gage 

height, 9.35 feet, staff gage at site 700 feet upstream); minimum, 242 second-feet Jan. 

8, 1937 (gage height, 1.50 feet).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

1,440

1,860

2,290

2,000

1,850

1,800

1,760

1,730

1,700

1,670

1,650

1,630

1,630

1,590

1,600

1,600

1,590

1,590

1,590

1,590

1,590

1,650

1,730

1,860

1,760

1,760

1,860

1,780

1,730

1,630

1,630

Nov.

1,580

1,580

1,5UO

1,470

1,510

1,520

1,540

1,550

1,520

1,490

1,500

1,490

1,380

1,390

1,470

1,420

1,380

1,450

1,510

1,780

1,660

1,560

1,600

1,650

1,620

1,580

1,590

1,580

1,580

1,560

~

Dec.

1,470

1,400

1,420

1,440

1,490

1,500

1,500

1,450

1,440

1,450

1,450

1,470

1,490

1,500

1,520

 1,520

1,350

1,120

1,100

1,310

1,400

1,350

1,380

1,350

1,300

1,350

1,450

1,400

1,280

1,060

1,060

Jan.

1,010

1,030

1,070

1,100

1,150

1,190

1,200

1,200

1,190

1,180

1,170

1,160

1,130

1,070

1,030

1,100

1,120

1,130

1,130

1,130

1,130

1,130

1,130

1,110

1,100

1,110

1,030

940

1,020

1,000

990

Feb.

*1,040

1,120

1,230

1,250

1,220

1,200

1,200

1,130

1,080

1,030

1,080

1,230

1,320

1,380

1,330

1,340

1,390

1,360

1,260

1,230

1,200

1,200

1,260

1,380

1.32O

1,240

1,230

1,190

-

-

-

Month

October. ...................................

November ......................... .........

December .................... ..............

Calendar year 1946 ......................

January. ................................. .

February. ..................................

March. .....................................

April.. ....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1946-47 . ......................

Mar.

1,120

1,150

1,240

1,240

1,240

1,210

1,180

1,200

1,220

1,230

1,260

1,220

1,180

1,240

1,350

1,470

»1 , 500

1,510

1,560

1,620

1,650

1,700

1,750

1,660

1,550

1,490

1,470

1,420

1,470

1,590

1,700

Apr.

1,630

1,580

1,560

1,520

1,490

1,440

1,420

1,390

1,380

1,360

1,350

1,330

1,350

1,490

1,850

2,190

2,330

2,480

2,480

2,350

2,480

2,580

2,600

2,550

2,430

2,430

2,620

3,020

3,410

3,530

-

Seoondfoot-days

53,140 

46,020

42,780

736,738

34,180

34,440

43 , 400

61,630

208,030

158,530

88,050

42,690

35,940

848,830

May

3,530

3,860

5,350

6,790

7,250

7,370

8,040

8,730

9,530

9,650

8,300

7,250

6,810

6,570

5,940

5,600

5,600

5,720

5,720

5,770

6,020

6,280

6,390

6,280

5,360

6,650

7,060

8,040

7,670

7,030

6,870

Maximum

2,290

1,780 

1,520

6,510

~ 1,200

1,390

1,750

3,530

9,650

6,870

3,690

1,760

1,420

9,650

 June

6,870

6,810

6,500

6,200

5,800

5,600

5,400

5,400

5,600

5,450

5,350

5,200

5,000

4,750

4,740

4,780

5,130

5,540

5,640

5,720

5,920

5,470

4,970

4,640

4,420

4,440

4,530

4,440

4,240

3,980

Minimum

1,140

1,380 

1,060

886

940

1,030

1,120

1,330

3,530

3, 980

1,790

1,110

1,060

940

July

3,690

3,550

3,510

3,530

3,570

3,510

3,470

3,550

3,650

3,530

3,510

3,330

3,160

3,020

2,890

2,840

2,780

2,670

2,580

2,510

2,440

2,380

2,340

2,290

2,190

2,110

2,000

1,920

1,850

1,790

1,790

Aug.

1,760

1,730

1,740

1,700

1,630

1,590

1,540

1,470

1,440

1,390

1,400

1,390

1,360

1,340

1,320

1,300

1,270

1,240

1,230

1,250

1,300

1,310

1,280

1,300

1,270

1,240

1,230

1,220

1,200

1,140

1,110

Mean

1,714

1,534 

1,380

2, CIS

1,100

1,230

1,400

2,054

6,711

5,284

2,840

1,380

*

2,326

Sept.

1,100

1,100

1,100

1,100

1,090

1,070

1,060

1,060

1,110

1,120

1,140

1,140

1,130

1,100

1,110

1,120

1,310

1,420

1,400

1,320

1,280

1,270

1,260

1,250

1,240

1,280

1,340

1,330

1,340

1,350

Runoff in 

acre-feet

105,400

84^850

1,461,000

67,800

68,310

86,080

122,200

412,600

314,400

174,600

84, 680

'

1,683,000

* Winter discharge measurement made on this day.

Note.- No gage-height record Jan. 4-31, June 3-14J discharge computed on basis of weather records 

and records for stations near Challls. Stage-discharge relation affected by Ice Jan. 2, 3, Feb. 1-3, 

and probably Jan. 4-31.
220 SAMON RIVER BASIN

Salmon River near ShDup, Idaho

Location.- Staff gage, lat. 45°13'30", long. 114°25', in sec. 13, T. 23 N., F. 17 E., 

STKTTeet downstream from highway bridge, 1 mile downstream from Panther Cr^ek, and 

8 miles southwest of Shoup. Prior to May 4, 1947, and Aug. 9-30, 1947, wire-weight 

gage 200 feet upstream at different datum.

Drainage area.- 6,270 square miles.

Records available.- October 1944 to September 1947.

Extremes.- Maximum discharge observed during year, 16,600 second-feet May 10 (gage 

height, 7.79 feet); minimum observed, 1,290 second-feet Feb. 28, but may l«.ve been 

less during period of ice effect.

1944-47: Maximum discharge observed, that of May 10, 1947; minimum observed, 

1,040 second-feet Sept. 12, 13, 1945 (gage height, 1.93 feet, site and datum then in 

use), but may have been less during winter periods.

Remarks.- Records fair. Gage read once daily. Diversions above station for Irrigation.

Rating tables, water year 1946-47, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to May 3, Aug. 9-30 May 4 to Aug. 8, Aug. 31 to Sept. 30

2.2 1,290 5.0 5,440

2.5 1,610 6.0 7,310

3.0 2,240 7.0 9,300

4.0 3,720

1.1 1,530 4.0 7,100

1.5 2,070 5.0 9,450

3.0 2,840 6.0 11,900

3.0 4,850 7.8 16,600

Discharge, in second- feet, water year October 1946 to September 1947

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.

1,930

2,660

3,660

3,250

2,770

2,760

2,740

2,600

2,580

2,520

2,460

2,410

2,390

2,370

2,340

2,310

2,240

2,210

2,180

2,160

2,150

2,160

2,300

2,560

' 2,440

2,550

2,420

2,, 410

2,420

2,380

2,270

Nov.

2,340

2,190

2,120

2,040

1,980

2,060

2,160

2,160

2,190

2,160

2,120

2,150

1,990

1,970

1,950

U'930

1,950

1,990

2,020

2,450

2,380

2,240

2,320

2,240

2,370

2,270

2,190

2,310

2,410

2,510

-

Dec.

2,240

2,060

1,920

1,950

2,030

2,210

2,110

2,110

1,980

1,880

1,980

2,140

2,560

2,460

2,510

2,280

*1,880

1,410

1,360

1,900

1,990

1,860

1,930

1,890

al,900

3,980

2,070

1,850

1,700

1,400

1,400

Jan.

' 1,600

. 1,400

> 1,700

1

> 1,400

'

Feb.

. 1,500

 1,700

1,670

1,310

1,290

.

_

-

Month

October, ...................................

November ...................................

December ....................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June ........................................

July.. .....................................

August .....................................

September ................. ................

Water year 1346-47 ......................

Mar.

1,350

1,460

1,770

1,920

1,780

1,530

1,560

1,570

1,650

1,620

1,860

1,650

1,680

1,750

2,150

2,300

2,320

»2,440

2,4'80

2,420

2,420

2,520

2,820

2,700

2,620

2,460

2,190

2,180

2,230

2,300

2,510

Apr.

2

2

2

2

2

2

2

2

2

2

1

1

2

2

2

3

3

3

3

3

4

3

3

3

3

3

3

4

4

5

Seoondf cot-days

76,600

65,160

60,940

1,014,830

47,800

44,570

64,210

94,820

328 240

241 ', 940

123,030

55,910

54,070

1,257,290

,410

,630

460

450

,420

310

240

190

,040

010

890

980

120

310

660

500

670

770

980

850

020

990

940

930

770

830

960

530

790

170

May.

5,240

 6,400

8,960

11,500

12,400

12,400

13,700

14,600

16 , 100

16,600

13,400

11,400

10,900

10,400

9,700

9,210

8,970

9,210

9,310

8,970

9,210

9,78,0

9,450

9,450

9,780

9,900

10,200

10,600

10,800

10,000

9,700

Maximum

3,660

2,450

2,560

9,460

2-^820

5,170

16,600

10,300

5,510

2 1 380

2,220

16,600

June

9,900

10,300.

9,700

9,900

9,780

9,310

8,730

8,490

8,970

9,450

8,730

8,250

8,020

7,790

7,560

7,330

7,790

8,250

8,250

8,020

8,250

8,020

7,330

6,640

6,180

6,180

6,410

6,410

6,180

5,820

-

Minimum

1 93C

1 93C ilsec

1,140

1,290

1,350

1,890

5,240

5,820

2,380

1,510

1,530

1,290

July

5,510

5,070

5,070

5,070

5,070

4,850

4,850

5,070

5,070

5,070

4,850

4,650

4,430

4,220

4,220

4,010

3,800

3.6QO

3,600

3,400

3,2l!o

3,210

3,030

3,030

3,030

2,860

2,860

2,700

2,700

2,540

2,380

Aug.

2,380

2,3

2,3

2,3

?.z

2,2

2,0

1.9

1.8

80

80

80

40

40

80

40

40

1,830

1,800

1,7

1.7 i;e

1,5

1.5

1,6

1.5

1,5

80

10

20

90

90

00

90

60

1,560

1,610

1,7

1,6

1,7

10

10

30

1,670

1,620

1,6

1,6

1,5

1,5

50

10

70

10

1,530

Mean

2,471

2,172

1,966

2,780

1 542

1 592

2^071

3, 161

10,590

8,065

3,969

1,804

1,802

3,445

Sept.

1,560

1,630

1,630

1,610

el, 700

1,530

1,530

1,530

1,530

1,660

1,660

1,660

1,630

1,630

1,610

1,580

1,580

2,070

2,220

2,100

1,990

1,990

1,960

1,930

1,930

2,130

2,100

2,100

2,130

2,160

-

Runoff in 

acre-feet

151,900

129,200

120,900

2,013,000

94,810

88 400

127 400

188 ) 100

651,100

479, 900

244,000

110,900

107,200

2,494,000

Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for other Salmon River stations.

e Gage reading Inaccurate or not representative of mean for day; discharge computed on basis of 

records for other Salmon River stations.

Note.- Stage-discharge relation affected by Ice Dec. 29 to Feb. 25 (no gage-height record Feb. 3- 

14", 18, 19; discharge computed on basis of weather records and records for other Salm-m River 

stations).
SALMON RIVER BASIN 221

Salmon River near French Creek, Idaho

Location - Staff gage, lat. 45°26', long. 115°59', in sec. 8, T. 24 N., R. 4 E., 100 

reet downstream fro.Ti Fall Creek, 2j miles northeast of French Creek post office, and 

16 miles east of Riggins, Idaho.

Drainage area.- 12,270 square miles.

Records available.- October 1944 to September 1947.

Extremes.- Maximum discharge during year, 67,300 second-feet May 9 (gage height, 30.7 

reet, from floodmark); minimum daily, 3,000 second-feet Jan. 15; minimum gage height 

observed, 2.62 feet Jan. 16.

1944-47: Maximum discharge observed, that of May 9, 1947; minimum observed, 1,890 

second-feet Dec. 12, 1944 (gage height, 1.44 feet).

Remarks.- Records excellent except those for periods of ice effect, which are good. Gage 

read twice dally. Amount of water diverted above station for irrigation is a negligible percentage of total flow.

Rating table, water year 1946-47, except periods of ice effect 

(gage height, In feet, and discharge, In second-feet)

2.4

3.0 

4.0 

5.0

2,990

3,710

4,940

6,250

6.0

8.0

11.0

14.0

7,900

11,800

18,200

25,000

17.0

21.0

25.0

30.4

32,100

41,800

51,900

66,500

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,420

5,660

7,320

7,040

6,320

5,980

5,800

5,640

5,490

5,360

5,230

5,100

5,040

4,990

4,940

4,890

4,840

4,790

4,730

4,720

5,080

5,640

6,750

6,630

6,360

7,420

7,150

6,660

6,220

6,060

5,770

Nov.

5,580

5,490

4,990

4,650

4,860

5,160

5,300

5,340

5,150

4,990

4,940

4,890

4,660

4,340

4,590

4,490

4,290

4,600

5,760

6,600

6,380

5,770

5,670

6,140

6,020

5,890

5,660

5,770

6,170

6,280

-

Dec.

5,930

5,620

5,280

5,240

5,260

*5,280

5,240

5,000

4,980

4,980

5,070

6,240

7,570

8,010

8,300

7,480

6,600

5,280

4,090

4,890

5,430

5,420

5,300

5,000

4,750

4,630

5,190

5,110

4,480

3,670

3,710

Jan.

3,640

3,600

3,500

3,400

3,600

3,900

4,200

4,100

3,960

3,810

3,900

3,600

3,400

3,300

3,000

3,200

3,300

3,400

3,450

3,650

3,720

4,050

4,260

4,530

4,520

4,550

4,400

3,900

3,500

3,330

3,400

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ................. ....

March .........................

April .........................

May ......'.....................

June .....:....................

July ..........................

August ........................

Septembe r .....................

Water year 1946-47. .........

Feb.

3,500

3,600

3,800

»4,000

4,100

4,110

3,960

3,820

3,530

3,310

3,520

3,810

4,520

4,890

5,210

5,060

5,020

5,260

5,110

4,790

4,630

4,560

4,630

4,820

5,190

4,840

4,480

3,970

_

_

-

Secondfoot-days

178,040

160,420

169,030

^3,511,900"

116,070

122,040

182,930

341,570

1,370,100

886,900

336,290

154 490

132)560

4,150,440

Mar.

3,940

4,000

4,290

4,360

4,260

4,150

3,950

3,950

4,010

4,070

4,350

4,420

4,300

4,320

4,600

5,150

5,970

6,850

7,690

8,300

8,600

8,770

»8,930

8,620

7,900

7,480

6,980

6,790

6,800

7,250

7,880

Maximum

7,420

6, 600

8,300

40,300

4 550

5)260

8, 930

27,300

66,400

41,700

17,000

6,180

5,100

66,400

Apr.

8,050

7,790

7,620

7,460

7,160

6,930

6,690

6,480

6,390

6,260

6,210

6,080

6,190

7,080

9,480

12,000

13,800

14,600

14,400

14,300

14,300

14,200

13,800

13,200

13,000

13,200

15,100

18,900

23,600

27,300

May

26,600

30,900

43,600

52,300

53,900

54,800

57,200

a6 1,000

66,400

60, 900.

52,100

45,400

42,300

40,600

38,700

37,800

37,900

38,300

37,500

38,300

39,400

40,300

39,700

39,500

. 40,500

42,900

44,800

45,100

43,100

38,700

39,600

Minimum

4,420

4 290

3|670

2,770

3,000

3,310

3,940

6,080

26,600

18,300

6,250

4,150

4,020

3,000

June

41,700

4'0,200

39,400

37 , 600

35,700

34,400

32,900

32,700

36,000

35,700

33,000

30 , 900

29,500

28,600

28,000

28,500

30,800

30,800

29,900

28,700

26,900

25,300

23,400

22 , 100

21,200

20,800

22,400

21,800

19,700

18,300

Mean

5 743

5 347

5!453

"9,622

3 744

4)359

5,901

11,390

44,200

29,560

10,850

4,984

4,419

11,370

July

17,000

15,900

15,600

15,400

15,100

14,400

14,200

13,800

13,600

13,200

13,100

12,400

11,800

11,300

10 , 800

10,200

9,920

9,610

9,150

8,890

8,550

8,320

8,010

7,820

7,620

7,420

7,150

6,820

6,570

6,390

6,250

Per 

square 

mile

0.468

. 436

.444

.784

. 305

!355

.481

.928

3.60

2.41

.884

.406

.360

.927

Aug.

6,180

6,1

6,0

5,9

50

10

50

5,920

5,680

5,5

5,3

5,1

JO

to

70

5,060

4,990

4,9

4,9

4,8(

)0

50

)0

4,790

4,690

4,6

4,5'

4,4

10

10

>0

4,430

4,540

4,6f

5,0(

4,9.

)0

)0

50

4,800

4,600

4,4<

4,4C

4,3'

4,26

)0

)0

to

0

4,150

Sept.

4,080

4,030

4,070

4,240

4,220

4,110

4,020

4,220

4,360

4,430

4,540

4,420

4,320

4,320

4,080

4,060

4,530

4,820

5,100

4,990

 4,800

4,740

4,520

4,430

4,360

4,340

4,500

4,630

4,600

4,680

Runoff

Inches

0.54

.49

.51

10.64

.35

.37

.55

1.04

4.15

2.69

1.02

.47

.40

12.58

Acre-feet

353,100

318,200 

335,300

6,967,000

230,200

242,100

362,800

677,500

2,718,000

1,759,000

667,000

306 , 400

262.900

8,232,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station at Whltebird.

Note.- Stage-discharge relation affected by Ice Jan. 2-8, 12-19, 27-29, Jan. 31 to Feb. 5.
SALMON RIVER BASIN 

Salmon River at Whitebird, Idaho

Location.- Water-stage recorder, lat. 45°45', long. 116°20', in sec. 22, T. 28 N., R. 1 

E., Just upstream from Whitebird Creek, half a mile downstream from Canfield-Joseph 

highway bridge, and 1 mile southwest of Whitebird.

Drainage area.- 13,550 square miles, including that of Whitebird Creek.

Records available.- August 1910 to September 1917, October 1919 to September 1947.

Average discharge.- 35 years, 10,380 second-feet.

Extremes.- Maximum discharge during year, 84,500 second-feet May 9 (gage height, 30.35 

reet); minimum, 3,170 second-feet sometime during period Jan. 3-16 (gage height, 11.92 

feet).

1910-17. 1919-47: Maximum discharge observed, 88,800 second-feet June 9, 1921 

(gage height, 31.5? feet), from rating curve extended above 75,000 second-fset; minimum, 

1,580 second-feet Dec. 11, 1932 (gage height, 10.23 feet), from rating curve extended 

below 2,200 second-feet.

Maximum stage known, about 37.5 feet, present datum, June 1894 (discharge, 120,000 

second-feet).

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. Amount of water diverted above station for irrigation is a negligible percentage 

of total flow.

Discharge, in second feet, water year October 1945 to September 1947

Day

1

6

11

14 

15

16 

17

19

21

23

26

28 

29 

30

Oct.

4,860

7,460

7,850

6,840

6,340

5,960

5,650

5,540

5,380 

5,340

5,290 

5,250

5,120

5,400

7,420

7,250

8,300

7,750 

7,330 

6,720

Nov.

6,220

6,160

5,740

5,420

5,460

5,690

5,840

5,900

5,780

5,650

5,540

5,460

4,970 

4,950

5,120 

4,860

5,040 

7,210

8,560

7,940

7,140 

6,910

7,480

7,100

6,870 

7,140 

7,770 

7,940

~

Dec.

7,460

6,910

6,520

6,380

6,420

6,560

6,600

6,340

6,140

6,060

6,120

7,480

9,430 

10,900 

11,600

11,100 

9,510

7,640 

6,580

6,500

6,910

6,620 

6,480

6,220

5,820

5,630

5,860 

6,'100 

5,520 

4,950

4,150

Jan.

4,430

4,270

4,140

4,050

4,200

4,600

4,800

4,700

4,600

4,300

4,400

4,300

4,000 

3,700 

3,500

3,600 

3,780

3,830 

4,030

4,070

4,200

4,360 

4,590

4,900

5,080

5,040

5,060 

4,650 

4,270 

3,800

3,750

December ......................

Hay

September .....................

Water year 1946-47 ..........

Feb

3,880

4,050

4,390

4,520

4,520

4,480

4,400

4,200

4,000

3,800

4,100

4,600

5,200 

5,500 

5,800

5,700 

5,700

5,800 

5,700

5,500

5,300

5,200 

5,300

5,500

5,800

5,600

5,200 

4,810

-

Secondfoot-days

195 620

216,510

143,720

4,759,070

Mar.

4,720

4,700

4,860

5,160

5, 120

4,900

4,750

4,660

4,740

4,860

5,230

5,400

5,290 

5,250 

5,460

5,940 

6,810

7,940 

8,980

9,830

10,300

10,600 

11,000

10,700

10,000

9,220

8,720 

8,330 

8,280 

8,720

9,510

11,600

5,630

83,500

Apr.

9,900

9,730

9,480

9,240

8,950

8,580

8,260

7,990

7,810

7,680

7,530

7,400

7,460 

8,240 

10,400

13,600 

16,000

17,400 

17,600

17,500

17,400

17,300 

16,700

16,000

15,500

15,800

17,400 

31,200 

26,600 

31,500

-

Hay

31,600

35,400

49,700

63,000

67,100

67,900

70,700

77,400

82,500

77,700

64,800

54,700

49,300 

46,600 

43,900

42,800 

42,800

43,000 

42,300

43,500

44,600

45,700 

45,000

44,700

45,800

48,500

51,100 

52,000 

48,800 

45,100

44,000

4,150

4,320

3,500

June

47,100

45,500

43,800

41,800

39,400

37,500

36,600

36,500

40,100

40,200

37,000

33,900

32,300 

31,000 

30,200

30,700 

33,800

34,000 

32,600

31,300

39,100

27,300 

25,200

23,600

22,600

22,000

23,700 

24,000 

21,600 

19,800

6,984

4,791

13,040

July

18,300

17 , 300

16,800

16,500

16,000

15,500

15,100

14,700

14,500

14,300

14,000

13,500

12,700 

12,000 

11,500

11,100 

10,800

10,300 

9,930

9,580

8,980 

8,700

8,280

8,080

7,810 

7,500 

7,330

6,790

Per

mile

.515

.354

.963

Aug.

fi

fi

6,

6,

6,

R,

6,

5,

5,

5,

5, 

5, 

5,

Ron

ROO

440

420

240

020

R70

540

400 

340 

230

5,210 

5,080

4,

4.

970

720

5,080 

5,42O

R7n

5,270

4,930 

4,790 

4,700

4,480

Sept.

4,320

4,450

4,560

4,410

4,380

4,750

4,880

4,930

4,740 

4,570 

4,450

4,410

5,250

5,6'30

5,120

4,750

4,770 

4,990 

4,990

Runoff

Inches

53

.59

.39

13.04

Acre-feet

429,400

385,100

9,439,000

Note.- No gage-height record Jan. 4-16, Feb. 

nd records for station near French Creek.

7-27; discharge computed on basis of weather records
SALMON RIVER BASIN 223 

Alturas Lake Creek near Obsidian, Idaho

Location.- Water-stage recorder, lat. 43°56', long. 114°50', in SWtr sec. 9, T. 7 N., R. 

14 K., 1 mile downstream from outlet of Perkins Lake, Ij miles downstresm from outlet 

of Alturas Lake, and 4 miles south of Obsidian.

Drainage area.- 35.7 square miles.

Records available.- November 1940 to September 1947.

Extremes.- Maximum discharge during year, 463 second-feet May 9 (gage height, 4.92 

 feet); minimum, 14 second-feet Sept. 16, 20-25; minimum gage height, 1.S7 feet Sept.

21 24 25

'l940-47: Maximum discharge, 612 second-feet May 31, 1943 (gage height, 5.30

feet); minimum recorded, 10 second-feet Apr. 3, 1945.

Remarks.- Records good except those for periods of ice effect, which are poor. No 

diversion or regulation above station.

Rating table, water year 1946-47, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

Oct. 1 to Dec. 31

2.0 16

2.1 22

2.2 29

2.3 37

2.4 46

1.9

2.0

2.1 

2.3 

2.6

Jan. 1 to Sept. 30

3.0 103

3.5 164

4.0 244

4.4 327

4.9 457

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Oct.

22

33

31

29

26

26

26

26

25

23

23

22

22

21

21

21

20

20

20

19

23

25

29 

26

28

31

29

28

 27

26

26

Nov.

26

26

24

23

23

23

23

24

23

23

23

22

21

21

21

19

19

21

28

36

36

37

39 

37

35

35

34

32

31

30

~

Dec.

28

27

26

26

25

26

26

25

25

26

24

26

29

33

34

32

Jan.

> 28

' 25

Month

October .......................

November . . ...................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April . .......................

Hay

June ...... ...................

July ....... ..................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

(»)

24

-

-

-

Secondfoot days

778

815

918

27,902

820

672

1,494

6 , 972

7,384

3,260

799

475

27,210

Mar.

23

 25

25

25

25

25

25

25

28

30

28

33 

32

32

31

30

30

30

33

35

Maximum

33

3 C

-

440

35

124

451

325

15 C

43

18

451

Apr.

34

32

32

31

30

30

30

29

28

28

27

27

27

28

30

32

37

42

47

52

58

63

68 

73

77

81

88

98

111

124

-

May

134

159

209

273

320

344

381

421

451

424

354

302

269

244

216

203

203

211

223

239

257

279

289

296

304

318

346

358

332

311

302

Minimum

19

19

-

27

134

168

45

14

14

June

306

325

316

291

267

254

239

237

257

255

242

219

203

199

207

223

255

289

306

313

304

261

231 

211

204

207

212

201

182

168

-

Mean

25 1

27 2

29.6

76,4

26.5

24.0

26 5

49. 8

269

246

105

25. 8 

15.8

74.5

July

158

154

156

159

158

155

154

154

152

147

139

131

122

114

107

102

96

90

85

81

77

73

69 

65

60

57

54

51

48

47

45

Per 

square 

mile

0.703

. 762

.829

2.14

.742

. 672

.742

1.39

8 . 10

2.94

.723

.443

2.09

Aug.

43

41

40

38

36

34

32

32

30

28

27

26

25

24

24

23

22

21

20

21

20

20

20 

20

20

20

19

19

18

18

18

Sept.

17

17

17

18

18

17

17

17

17

18

16

16

16

15

15

14

15

15

15

14

14

14

14 

14

14

16

16

17

16

16

Runoff

Incites

0.81

. 85

.96

29.07

. 65

.70

.86

1.56

9 35

7 . 69

3.40

. 83

.49

28.35

Acre-feet

1,540

1,620

1,820

55,350

1,630

1 330

l)630

17 ,800 

14,650

6,470

1,580 

942

53,980

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov. 3, 12, 13, 16, 20, 22, 30, Dec. 1, 7-9, 

Dec. 16 to Mar. 21, Mar. 24, 25, 27-29, Apr. 3, 5, 7, 10-12 (no gage-height record Jar-. 28 to 

Feb. 4, Mar. 9; discharge computed on basis of weather records and records for nearby streams).
224 SALMON RIVER BASIN

Valley Creek at Stanley, Idaho

Location.- Staff gage, lat. 44°13', long. 114°56', in sec. 3, T. 10 N., R. 13 E., a 

quarter of a mile upstream from mouth, three-eighths of a mile downstream from upper 

Stanley, and three-quarters of a mile upstream from lower Stanley.

Drainage area.- 176 square miles.

Records available.- December 1910 to October 1913, May 1991 to September 1947.

Average discharge.- g? years (1911-13, 1922-47), 184 second-feet.

Extremes.- Maximum discharge observed during year, 1,150 second-feet May 9 (gage height, 

3.33 reet); minimum daily, 56 second-feet Feb. 28.

1910-13, 1921-47; Maximum discharge observed, 1,850 second-feet May 29, 1921 (gage 

height, 4.4 feet), from rating curve extended above 1,300 second-feet; minimum, 40 

second-feet (estimated) Nov. 17-30, 1929, Dec. 8-13, 1932.

Remarks.- Records fair. Gage read three times weekly except for period Mar. 22 to July 20, 

when daily readings were made. Diversions above station for irrigation.

Rating table, water year 1946-47, except periods of ice effect 

(gage height, In feet, and discharge, In second-feet)

0.9 43 1.6 191 2.6 640 

1.0 58 1.8 258 3.0 900 

1.2 94 2.0 335 3.4 1,210 

1.4 138 2.3 475

Discharge, in second- feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

alio 

194 

a!40 

122 

alls

al!4 

113 

allO 

104 

a!02

100 

a98 

a96 

96 

a96

96 

a96 

96 

a96 

a94

156 

a!60 

171 

alSO 

140

a!60 

a!40 

131 

al!6 

117 

alls

Nov.

113 

al!3 

113 

al!3 

al!3

113 

al!3 

113 

allO 

a 107

104 

alOO 

96 

a9 6 

96

alOO 

113 

al20 

alSO 

140

a96 

96 

allO 

alOS 

96

a 98 

100 

a98 

96 

a92

Dec.

a90 

113 

allO 

109 

alOS

104 

alOO 

a96 

96 

a94

92 

a96 

*102 

a!06 

a 108

109 

aSO 

96 

a 94 

92

a96 

alOO 

b98 

a96 

100

a98 

96 

aSO 

a78 

b80 

aSO

Jan.

. b80

) b70 

C)

Honth f*i

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

mber ......................

lendar year 1946 

ary

Feb.

a70 

a76 

b72 

a70 

b72

a7O 

b68 

366 

364 

b70

874 

79 

a84 

83 

382

380 

79 

370 

68 

a62

65 

a65 

aSS 

65 

a64

b64 

a62 

b56

ond 

-days

3,747 

3,220

2,994

......... 80,256

nary

ember .....................

3,420 

1,965 

2,477 

7,315 

25,698 

18,336 

8,845 

3,565 

3,271

ter year 1946-47 .......... 83,853

Mar.

362 

368 

68 

368 

68

362 

72 

372 

370 

73

a70 

70 

a70 

370 

d74

*77 

d78 

a83 

d84 

a86

a88 

d90 

d88 

d88 

92

96 

96 

96 

96 

100 

104

Maximum

194 

150 

113

891

84 

104 

658 

1,150 

935 

430 

160 

194

1,150

Apr.

96 

88 

84 

81 

84

81 

81 

84 

92 

92

96 

96 

117 

150 

177

194 

213 

254 

246 

276

299 

315 

331 

356 

430

450 

500 

646 

658 

646

May

1 

1

1

Minimum

94 

92 

78

63

56 

62 

81 

622 

374 

163 

92 

88

56

893 

907 

865 

795 

865

935 

921 

994 

,150 

,060

865 

809 

879 

706 

634

646 

670 

622 

646 

670

706 

730 

767 

809 

851

795 

823 

,090 

935 

795 

865

June

935 

935 

795 

730 

767

718 

646 

670 

823 

730

694 

586 

525 

500 

500

520 

622 

623 

646 

646

622 

520 

480 

450 

450

460 

490 

460 

420 

374

Bean

131 

107 

96.6

220

78.1 

70.2 

79.9 

244 

829 

611 

285 

115 

109

230

July

356 

356 

365 

374 

383

356 

374 

383 

430 

392

374 

339 

333 

307 

284

384 

276 

269 

262 

240

a230 

3230 

220 

210 

188

al84 

alSO 

177 

al70 

166 

al63

Per 

square 

mile

0.687 

.608 

.549

1.25

.444 

.399 

.454 

1.39 

4.71 

3.47 

1.62 

.653 

.619

1.31

Aug.

160 

8158 

8153 

150 

8147

140 

al37 

131 

al30 

a!28

126 

al20 

113 aioe

104

alOO 

a98 

96 

a94 

92

892 

396 

113 

S107 

100

a98 

96 

96 

96 

a94 

a92

Sept.

92 

a92 

92 

a90 

88

aSS 

a8 8 

88 

a95 

115

sllO 

109 

alOS 

alOl 

100

a!20 

194 

al60 

139 

a!20

al!7 

111 

alOS 

104 

a 108

111 

allO 

allO 

109 

a!09

Runoff

Inches

C.79 

.68 

.65

lf.95

.51 

.42

l]55 

5.43 

3.87 

1.87 

.75 

.69

17.71

Acre-feet

7,430 

6,390 

5,940

159,200

4,800 

3,900 

4,910 

14,510 

50,970 

36,370 

17,540 

7,070 

6,490

166,300

* Winter discharge measurement made on this day.

a No gage-height record; discharge interpolated, or computed on basis of weather records and 

records for nearby streams.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of weather records and records for 

nearby streams.
SALMON RIVER BASIN 225

Yankee Fork Salmon River near Clayton, Idaho

Location.- Water-stage recorder, lat. 44°17', 114°44', in sec. 17, T. 11 N., R. 15 E., 

hair a mile upstream from mouth and 17 miles west of Clayton.

Drainage area.- 195 square miles.

Records available.- May 1921 to September 1947.

Average discharge.- 84 years (1922-24, 1925-47), 191 second-feet.

Extremes.- Maximum discharge during year, 8,240 second-feet May 8 (gage height, 5.94 

reet); minimum discharge not determined, occurred during period of ice effect.

1921-47: Maximum discharge, 3,360 second-feet June 12, 1921 (gage height, 6.79 

feet, site and datum then in use), from rating curve extended above 2,300 second-feet; 

minimum, 10 second-feet (6siimate<i) Dec s > 6 . 1927.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. No diversion or regulation above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

83

155

119

107

105

100

94

91

90

88

84

87

83

81

82

81

77

78

74

76

82

89

112

98

95

120

109

104

85

 91

81

Nov.

82

73

67

69

77

81

88

81

71

73

76

66

59

70

68

66

64

77

85

85

74

74

77

76

72

72

72

72

71

64

-

Dec.

63

66

66

66

66

64

60

60

60

60

60

62

62

62

 67

60

50

62

62

62

h 60

} -

Jan.

, 50

45

I"

1 ( )

Month

October .......................

November ......................

Decembe r ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June .................... .....

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

40

45

_

_

-

Secondfoot-days

2,901

2,202

1,860

80 , 508

1,415

1,205

2,700

8,058

40,846

23,117

8,908

3,374

2,516

99,102

Mar.

45;

1 

*63

75

90

120

140

160

160

150

140

130

120

110

h!22

130

150

140

Maximum

155

88

67

1,250

_

160

564

2,150

1,190

443

148

117

2,150

Apr.

131

125

115

114

106

105

100

100

100

90

92

h94

160

243

349

378

411

375

324

329

364

375

369

335

318

355

460

553

564

524

-

May

560

900

1,370

1,490

1,510

1,600

1,830

2,150

2,090

1,630

1,260

1,050

984

906

882

S54

1,050

1,120

1,080

1,160

1,280

1,350

1,280

1,260

1,320

1,410

1,640

1,780

1,440

1,270

1,240

Minimum

74

59

**

_

_

90

560

450

150

84

77

-

June

1,190

1,130

1,050

954

848

848

804

820

876

832

798

745

724

750

776

826

859

870

859

842

734

632

579

568

568

591

572

532

490

450

-

Mean

93.6

73. 4

eo!o

221

45.6

43.0

87.1

269

1,318

771

287

109

83.9

272

July

424

430

443

437

424

414

414

405

399

372

352

329

310

286

276

271

256

243

234

222

220

209

198

190

182

174

168

163

159

154

150

Per 

square 

mile

0.480

. 376

.308

1.13

.234

.221

.447

1.38

6.76

3.95

1.47

.559

.430

1.39

Aug.

148

] 45

L39

.36

31

27

24

19

L17

115

115

12

11

108

106

102

01

99

98

102

102

98

02

96

95

92

90

89

87

84

84

Sept.

82

80

87

84

80

78

80

85

84

85

85

82

80

77

78

79

117

101

90

86

84

84

82

80

79

86

83

80

79

79

-

Runoff

Inches

0.55

.42

.35

15 35

.27

.23

.51

1.54

7.79

4.41

1.7O

.64

.48

18.89

Acre-feet

5,750

4,370

3,690

159, 700

2,810

2,390

5,360

15,980

81,020

45,850

1 7 . £70

6,690

4,990

196,600

* Winter discharge measurement tfade on this day.

h Computed from staff-gage reading.

Note.- Stage-discharge relation affected by ice Nov. 15, Dec. 2 to about Mar. 22. Ho gage-height 

record Dec. 29 to Mar. 20, Mar. 22-27, 29-31, Apr. 6-11, 13; discharge computed on basis of 2 discharge measurements, weather records, inflow between stations on Salmon River below Yankee Pork 

and below Valley Creek, and records for nearby streams.
226 SALMON RIVER BASIN

Challis Creek near Challis, Idaho

Location.- Water-stage recorder, lat. 44 0 34', long. 114°19', in sec. 2, T. 14 N., R. 18 

K., an eighth of a mile downstream from Eddy Creek, 6 miles northwest of Cl-allis, and 

6f miles upstream from mouth.

Drainage area.- 85 square miles.

Records available.- October 1943 to September 1947.

Extremes.- Maximum discharge during year, 388 second-feet May 9 (gage height, 2.07 feet); 

minimum, 14 second-feet Nov. 12, 30, but may have been less during winter period; minimum gage height, 0.08 foot Nov. 12.

1943-47: Maximum discharge, that of May 9, 1947; minimum, 8 second-feet Mar. 17, 

1946 (gage height, -0.20 foot).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

19

20

21

22

23

25

26

28

30

Oot.

27

44

34

32

30

29

28

28

28

27

28

29

27

28

27

27

26

27

25

27

28

28

31

28 

27

26 

26

Nov.

*22

21

23

26

25

21

22

21

20

21

21

21

21

24

22

20

20

21

22

22

21

22

22

21

20

20 

20

20

19

"

Dec.

18

19

19

19

19

19

18

18

18

18

19

*20

20

20

20

18

17 

17

15 

15

15

Jan.

> 15

Feb.

(*)

-

-

Month

December ...................................

May. .......................................

September. .................................

Hater year 1946-47 ......................

Mar.

t

16

17

18

20

*f22

24

25

25

25

27

25

23

22

22

20 

22

24 

27

25

Apr.

23

23

22

22

20

20

19

20

19

19

20

20

22

28

44

38

42

45

43

46

47

44

41

40

40

42

49 

57

66 

71

-

Secondfoot-clays

879

643

551

420

1,052

752

19,075

May

79

110

158

192

207

223

251

291

355

320

284

260

248

226

215

210

212

220

220

215

220

234

223

217

215

217

245 

260

237 

223

220

Maximum

44

26

20

143

_

71

2O7

38

31

355

June

204

207

194

180

171

163

152

152

146

146

146

135

126

12O

122

124

127

126

122

127

126

118

108

103

99

96

97 

97

92 

86

Minimum

24

19

-

_

19

79

86

25

22

-

July

82

79

78

75

74

69

67

69

68

67

64

61

60

56

56

55

54

52

48

46

48

47

47

45

43

41

40

39 

38

36

Aug.

38

37

35

34

33

32

34

34

32

33

34

32

32

32

29

28

27

26

29

29

31

28

27

25

25

Mean

28.4

21.4

17.8

37.3

15.0

15 0

19.6

35 1

134

56.3

30.3

25.1

52.3

Sept.

25

25

25

25

23

23

24

25

24

25

25

25

23

23

31

27

23

25

27

Runoff in 

acre-feet

1,740

1,280

1,090

27,030

922

833

1,210

2,090

13,900

7,960

3,460

1,860

1,490

37,840

* Winter discharge measurement made on this day.

f Computed from partly estimated gage-height record.

Note.- Stage-discharge relation affected by Ice Nov. 13, 16, 17, 21, Dec. 1-4. 8, and most of 

period Dec. 17 to Mar. 16. No gage-height record Oct. 26-31, Jan. 5-31, Feb. 2 to Mar. 16j discharge 

computed on basis of recorded range in stage, weather records, and records for nearby streams.
SALMON RIVER BASIN 227

Pahsimeroi River near May, Idaho

Location.- Staff gage, lat. 44M2', long. 114°03', In W| sec. 25, T. 16 N., P . 20 E., a 

quarter of a mile downstream from old highway bridge on Challls-Salmon River highway, 

a quarter of a mile upstream from mouth, and 10 miles northwest of May. latum of gage 

Is 4,636.95 feet above mean sea level, adjustment of 1912.

Records available.- October 1929 to September 1947. 

Average discharge.- 17 years (1930-47), 200 second-feet.

Extremes.- Maximum discharge observed during year, 341 second-feet Nov. 29, 30 (gage 

height, 2.66 feet); minimum observed, 130 second-feet May 29.

1929-47: Maximum discharge observed, 454 second-feet May 30, 1943 (gag? height, 2.81 

feet); minimum observed, 75 second-feet Apr. 28, 1934.

Remarks.- Records ,good except those for periods of no gage-height recordj which are fair. 

(Jage read once dally. Many diversions above station for irrigation.

Discharge, in second-feel, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3280

a320

3310

33OO

3300

a290

a290

a290

3290

3290

3290

3290

a290

a290

287

287

291

295

291

303

303

310

310

314

314

318

329

333

329

329

329

Nov.

329

322

322

322

325

325

333

329

322

325

322

322

318

314

306

310

310

325

333

337

333

337

337

333

329

325

322

329

341

341

-

Dec.

337

333

333

322

318

318

318

318

314

310

314

318

322

318

318

310

299

295

291

280

284

287

284

287

3286

284

284

272

269

262

251

Jan.

240

237

237

233

233

233

237

233

230

233

240

244

244

240

240

251

247

251

254

251

251

244

247

258

258

262

262

258

258

258

254

Feb.

247

254

262

262

265

262

258

265

269

265

262

265

291

325

310

310

306

310

291

291

299

295

299

291

291

295

295

291

-

-

-

Month

December ...................................

Calendar year 1946 ......................

April. .....................................

May. .......................................

September. .................................

Water year 1946-47 ......................

Mar.

291

295

299

287

295

295

291

287

291

295

291

299

303

303

303

306

310

314

306

306

306

306-

303

299

299

303

303

303

303

299

299

Apr.

299

303

310

314

303

310

306

299

299

295

295

299

314

295

295

291

287

287

280

276

269

265

265

262

251

244

237

233

224

217

-

Seoondfoot-days

9,336

87,034

7,926

7,143

91,297

May

204

195

176

163

148

141

146

143

171

163

150

139

141

158

166

166

160

158

150

143

143

141

139

137

132

132

135

132

130

137

139

Maximum

337

356

325

318

341

June

153

a!7O

also

3200

3220

a23O

a230

a230

3230

a23O

a230

240

251

224

220

230

244

233

240

237

227

230

237

237

230

237

230

224

220

227

-

Minimum

306

251

103

230

247

287

217

153

182

130

July

224

217

207

204

195

185

173

179

171

163

166

166

168

171

168

171

179

176

173

173

176

176

3174

171

173

171

168

168

173

173

171

Aug.

171

171

171

168

168

166

168

168

168

171

168

168

168

173

173

176

179

176

179

192

182

185

185

182

182

IBS

188

188

185

179

182

Mean

301,

2J<5

2'S

Z^

2H

151

234

2:58

250

Sept.

185

182

185

198

201

201

201

201

204

204

204

201

201

201

210

217

254

284

265

254

258

265

265

272

276

306

314

300

318

310

-

Runoff in 

ao re-feet

19 390

18,520

172,600

15,110

15,720

18,430

16,710

9,280

13,330

14,170

181,100

a Ho gsge-height record; disehsrge interpolated, or computed on basis of inflow between Salmon 

River near Chsllis snd Salmon River 3t Salmon, westher records, and records,for other rearby streams.
228 SALMON RIVER BASIN

Panther Creek near Shoup, Idaho

Location.- Staff gage, lat. 45°19', long. 114°?3', in sec. 19, T. 23 N., R. 18 E., 25 feet 

downstream from bridge on private road, 1 mile upstream from mouth, and 7 miles southwest of Shoup.

Drainage area.- 589 square miles.

Records available.- October 1944 to Seotember 1947.

Extremes.- Maximum discharge observed during year, 2,500 second-feet May 9; maximum gage 

neignt observed, 4.4 feet Jan. 6 (backwater from ice); minimum discharge observed, 35 

second-feet Dec. 17 (gage height, -0.08 foot).

1944-47; Maximum discharge observed, that of May 9, 1947; maximum gage height observed, that of Jan. 6, 1947; minimum discharge observed, that of Dec. 17, 1946.

Remarks.- Records good except those for periods of ice effect, which are fair. Gage read 

once daily. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

109

304

238

222

193

179

166

166

158

147

140

140

140

140

140

140

132

127

123

115

118

118

118

127

137

158

153

147

127

127

125

Nov.

127

109

105

105

1O9

.105

109

115

115

109

113

100

1OO

110

92

88

115

127

147

127

118

118

118

115

109

1O9

113

118

118

113

-

Dec.

100

100

105

1O9

109

109

105

77

84

105

113

127

132

137

137

105

*35

109

. 120

^

1 .jj,.

> D51

'

Jan.

> 95

70

53

58

80

10O

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

110

*125

110

100

105

100

92

60

90

100

110

110

120

95

95

95

95

90

85

82

84

92

92

92

88

92

77

70

_

_

-

Secondfoot-day s

4,674

3,376

3,358

69,774

2,831

2,656

3,853

9,569

43,485

22 f 648

4, 589

3,516

113,577

Mar.

67

84

92

84

81

77

77

77

77

77

77

77

77

81

77

84

113

 142

158

190

207

238

225

202

153

163

127

137

140

196

196

Maximum

304

147

137

834

125

238

767

2,500

1,100

430

202

132

2,500

Apr.

193

190

179

185

193

166

158

158

153

142

142

142

142

210

314

350

38O

418

410

426

446

446

384

365

369

391

391

603

756

767

-

May

816

989

1,690

1.88O

1,920

1,960

2,220

2,300

2,500

2,030

1,700

1,530

1,410

1,210

1,210

1,210

1.17O

1,170

1,140

1,100

1,100

1,100

1,100

1,060

1,100

1,140

1,250

1,250

1,100

1,030

1,100

Minimum

109

88

35

-

53

60

67

142

816

430

185

113

109

35

June

1,100

1,100

1,100

962

93O

930

930

897

897

866

834

773

773

744

750

744

761

715

688

660

650

608

559

584

559

559

536

559

450

430

Mean

151

113

108

191

91 3

94 . 9

124

319

1.4O3

755

291

148

117

311

July

43O

410

410

410

391

372

372

372

354

372

354

318

300

3OO

29O

283

250

250

250

244

234

234

225

219

219

207

207

190

185

185

185

 Per 

square 

mile

0.285

.214

.204

.361

.173

.179

.234

leos

2.65

1.43

.550

.280

.221

.588

Aug.

185

1

1

2

79

85

02

2 O2

163

]

]

]

58

53

47

147

147

]

]

]

50

47

42

142

142

]

]

1

37

27

13

113

127

1

]

]

37

55

47

158

147

]

1

]

]

42

37

27

18

113

Sept.

113

113

113

113

113

109

109

113

113

123

118

113

113

113

109

1O9

113

125

125

127

113

113

125

125

125

118

118

118

132

132

Runoff

Inches

O.33

.24

.24

4.91

.20

.19

.27

.67

3.06

1 .59

.63

.32

.25

7.99

Acre-feet

9,27O

6,7OO

6,660

138, 4OO

5,620

5,270

7,640

18 1 980

86 f £50

44,920

17 ,890 

9,100

6,97O

225,300

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 12-14, Dec. 19 to Jan. 26, Jan. 30 to Feb. 6, 

Feb. S-20.
SALMON RIVER BASIN 229

Middle Fork Salmon River near Cape Horn, Idaho

Location.- Water-stage recorder, lat. 44°25', long. 115°11', in sec. 34, T. 13 N., R. 11 

E., 1,100 feet downstream from Little Beaver Creek, half a mile downstream from confluence of Marsh and Beaver Creeks, and 2 miles northwest of Cape Horn.

Drainage area.- 138 square miles.

Records available.- September 1928 to September 1947 (no winter records 1941-45).

Average discharge.- 15 years (1928-41, 1945-47, 207 second-feet.

Extremes.- Maximum discharge during year, 2,HO second-feet May 8 (gage height, 6.05 feet); 

minimum recorded, 44 second-feet Nov. 12, but was probably less during winter period.

1988-47: Maximum discharge, 2,340 second-feet J«S* ®* M83, and about May 31, 1943; 

maximum gage height, 6.26 feet June 9. 1933; minimum discharge recorded, 31 second-feet 

Apr. 14, 1945 (gage height, 2.12 feet), but may have been less during some winters.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnicn are poor. No diversion above station.

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

138 

190 

130 

121 

119

111 

107 

105 

105 

99

98 

99 

96 

96 

98

96 

94 

94 

92 

96

130 

162 

150 

121 

130

157 

136 

132 

*99 

103 

101

Nov.

98 

90 

90 

103 

99

94 

96 

92 

98 

92

89 

84 

90 

94 

86

88 

90 

92 

103 

95

90 

97 

99 

98 

94

94

96 

96 

94 

90

Dec.

85 

88 

88 

88 

88

89 

90 

85 

83 

83

85 

85 

87 

89 

80

> 85

Jan.

80

Month

Octo 

Nove 

Dece

Ca

Jami 

Febi 

Hare 

Apri 

May 

June 

Julj 

Augi: 

Sept

Ha

mber ......................

lendar year 1946 .........

ember .....................

ter year 1946-47 ..........

Feb.

> 75

Secondfoot-days

3,605 

2,811 

2,653

95,827

2,480 

2,100 

2,395 

5,722 

39,782 

25,431 

8,601 

4,166 

3,363

103,109

liar.

70

*78

76 

78 

82 

82 

83

83 

89 

87 

83 

83

83

80 

83 

85 

90 

90

Maximum

190 

103

1,470

90 

537 

1,840 

1,280 

427 

167 

164

1,840

Apr.

89 

89 

89 

87 

87

87 

83 

83 

85 

83

83 

85 

96 

117 

141

162 

182 

192 

198 

220

238 

248 

248 

245 

261

294 

352 

443 

518 

537

Hay

620 

892 

1,250 

1,390 

1,440

1,500 

1,620 

1,820 

1,840 

1,470

1,240 

1,190 

1,120 

1,030 

1,020

1,080 

1,120 

1,130 

1,150 

1,220

1,290 

1,310 

1,260 

1,270 

1,310

1,380 

1,530 

1,460 

1,270 

1,230 

1,330

Minimum

92 

84

_

83 

620 

456 

172 

109 

101

-

June

1,250 

1,280 

1,170 

1,100 

994

1,060 

949 

1,100 

1,190 

1,040

962 

862 

820 

80S 

814

856 

898 

868 

844

796

730 

642 

600 

580 

570

570 

580 

546 

496 

456

Mean

116 

93.7 

85.6

263

80.0 

75.0 

77.3 

191 

1,283 

848 

277 

134 

112

282

July

427 

414 

410 

402 

386

375 

363 

363 

367 

344

322 

308 

290 

280 

267

257 

245 

238 

229 

220

215 

212 

203 

198 

192

187 

185 

179 

177 

174 

172

Per 

square 

mile

0.841 

.679 

.620

1.91

.580 

.543 

.560 

1.38 

9.30 

6.14 

2.01 

.971 

.812

2.04

Aug.

167 

164 

162 

162 

157

152 

150 

145 

143 

143

141 

141 

138 

134 

132

130 

127 

125 

125 

130

125 

127 

130 

123 

119

117 

117 

113 

109 

109 

109

Sept.

107 

107 

117 

109 

105

105 

115 

115 

115 

119

111 

107 

103 

101 

101

107 

164 

141 

121 

117

115 

111 

107 

107 

107

111 

107 

105 

103 

103

Runoff

Inches

0.97 

.76 

.71

25.81

.67 

.57 

.65 

1.54 

10.72 

6.85 

2.32 

1.12 

.91

27.79

Acre-feet

7,150 

5,580 

5,260

190,100

4,920 

4,170 

4,750 

11,350 

78,910 

50,440 

17,060 

8,260 

6,670

204,500

« Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 3, 12, 13, 15, 16, 20-22, Dec. 1-5, Dec. 16 

to about Mar. 13. Ho gage-height record Dec. 24 to Mar. 14; discharge computed on ba-3is of weather

rby
230 SALMON RIVER BASIN

Bear Valley Creek near Cape Horn, Idaho

Location.- Water-stage recorder, lat. 44°?6', long. 115°17', in sec. 29, T. 13 N., R. 10 

E., 250 feet downstream from Fir Creek, 3 miles upstream from mouth, and 7 miles northwest of Cape Horn.

Drainage area.- 180 squ^re,miles.

Records available - September 1991 to September 1928 (fragmentary), October 1928 to Septemoer iy4Y (no winter records 1941-45).

Average discharge.- 15 years (1928-41, 1945-47), 5>52 second-feet.

Extremes.- Maximum discharge during year, 2,890 second-feet May 9 (gage height, 5.13 feet); 

minimum, 55 second-feet Nov. 12 (gage height, 1.18 feet), but may have beer less during 

winter period.

1921-47; Maximum discharge, 3,450 second-feet June 9, 1933 (gage height, 5.49 feet) 

from rating curve extended above 2,000 second-feet; minimum recorded, 28 second-feet 

Nov. 11, 1931.

Remarks.- Records good except those for about Mar. 15 to June 12, which are fair, and 

Chose for periods of ice effect or no gage-height record, which are poor. No regulation or diversion above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

156

288

188

151

140

130

124

121

119

114

110

112

110

110

110

104

102

102

104

106

167

211

288

173

161

205

158

138

*124

126

119

Nov.

119

108

110

130

130

125

117

110

112

121

106

98

100

110

loo

100

110

112

156

117

110

121

135

120

115

115

119

119

110

110

"

Dec.

1O5

110

110

110

110

110

100

98

96

98

98

102

100

104

108

. 100

Jan.

« 100

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February .................... .

March ........ .............. .

April ................ ...... .

May ...........................

June ..........................

July ..........................

August ........... ............

September .....................

Water year 1946-47 ..........

Feb.

> 95

_

-

-

Secondfoot-days

4,469

3,465

3,159

124,441

3,100

2,660

3 132

7)713

49, 697

29 , 876

8 , 283

4,007

3,432

122,993

Mar.

.

 90

*100

106

112

112

112

114

114

108

106

110

110

108

110

112

114

114

110

Maximum

288

156

110

1,920

114

740

2,740

1,770

445

164

151

2,740

Apr.

108

112

106

110

106

110

108

112

112

112

112

112

128

156

198

233

255

255

259

292

322

335

344

330

357

410

494

591

694

740

-

May

847

1,120

1,470

1,750

1,890

1,940

2,020

2,270

2,740

2,140

1,780

1,620

1,680

1,580

1,580

1,540

1,550

1,510

1,450

1,520

1,510

1,490

1,410

1,390

1,420

1,460

1,520

1,560

1,350

1,270

1,390

Minimum

102

98

-

_

106

847

484

167

104

102

-

June

1,430

1,440

1,440

1,400

1,280

1,260

1,150

1,270

1,770

1,490

1,310

1,100

1,000

968

931

931

1,020

931

861

826

786

694

651

627

591

573

585

561

516

484

-

Mean

144

116

102

341

100

95.0

101

257

1,603

267

129

114

337

July

445

420

395

381

367

353

344

330

322

317

304

292

275

267

255

244

24O

233

222

215

211

205

201

198

191

188

182

176

173

170

167

Per 

square 

mile

0.800

.644

.567

1.89

.556

. 528

.56 1

1.43

8 . 91

5.53

1 .48

.717

.633

1.87

A'lg.

164

:

:

61

L56

L56

151

148

L43

138

L35

133

133

L30

L30

128

L2S

L24

L19

117

L17

124

128

L24

L33

124

119

114

110

108

106

104

104

Sept.

104

102

114

114

106

104

108

130

121

133

121

114

110

106

106

108

151

140

121

117

112

112

110

108

108

112

112

110

110

108

-

Runoff

Inches

0.92

.72

.65

25^72

.64

.55

.65

1 .59

10.27

6.17

1.71

. 83

.71

25.41

Acre-feet

8,860

6,870

6,270

246,800

6,150

5,280

6,210

15,300

59J260

16,430

7,950 

6,810

244,000

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Nov. 3-6, 13-16, 21, 24-26, Nov. 29 to Dec. 11, 

Dec. 16 to about Mar. 10. No gage-height record Jan. 1 to Mar. 14; discharge computed on basis of 

weather records anC records for stations on nearby streams.
SALMON RIVER BASIN 231

Big Creek near Big Creek, Idaho

Location.- Staff gage, lat. 45°07', long. 114°S5', In sec. 31, T. 21 N., R. 13 E., l£ 

miles downstream from Cabin Creek, 2 miles southeast of Wallace Ranch, aid 19? miles 

east of Big Creek post office.

Drainage area.- 470 square miles.

Records available.- September 1944 to September 1947.

Extremes.- Maximum discharge observed during year, 4,010 second-feet May 9 (gage height, 

t>.au reet); minimum observed, 66 second-feet Dec. 17 (discharge measurennnt), but may 

have been less during period of ice effect.

1944-47: Maximum discharge observed, that of May 9, 1947; minimum observed, that 

of Dec. 17, 1946.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

wnicn are poor. No regulation; small diversions for irrigation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a250

417

a380

a360

343

a330

a320

313

335

a320

a310

305

298

a295

298

275

a290

290

a290

a300

305

328

a350

335

a250

320

305

a300

290

275

268

Nov.

a260

225

184

171

a210

211

a218

 218

218

a220

197

184

a!70

177

a!70

165

197

a210

218

225

a210

304

a210

190

a!90

197

211

a220

225

218

-

Dec.

a210

211

204

a204

211

a208

197

164

a!70

a!90

a200

a210

a315

a230

a240

al60

*66

90

> 180

,

> 150

J

Jan.

150

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

Mnv May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

> 140

-

-

~

Secondfoot-days

9,645

6 , 123

5,600

158,863

4,650

3,920

7,307

15 994

71,'250

40,780

16,667

7,430

5,802

195,168

Bar.

 140

a!60

al80

*204

246

313

a340

351

367

375

367

335

a290

290

a290

305

a340

359

375

Maximum

417

26C

240

2,000

375

1,360

4,010

2,060

816

313

218

4,010

Apr,

a33Q.

"aiSTB" 305

335

a300

275

261

a260

a260

a260

268

261

268 a|400

534

583

764

a700

665

a600

563

634

a600

573

a630

a680

775

al,000

al,250

1,360

-

Bay

al , 500

1,930

a2,500

2,780

a2,900

a3, 100

3,200

a3,700

4,010

a3,600

2,290

,1,930

1,840

1,720

1,700

1,720

1,800

1,930

1,970

2,000

1,980

1,970

1,930

2,020

2,200

2,250

2,340

2,380

2,020

1,880

2,160

Minimum

250

165

66

66

260

1,500

821

520

197

171

66

June

2,060

2,020

1,880

1,760

1,660

1,520

1,580

1,520

1,490

1,440

1,400

1,360

1,280

1,260

1,360

1,320

1,400

1,380

1,290

1,250

1,190

1,110

998

1,050

1,020

1,070

1,190

1,210

891

821

Mean

311

204

181

435

150

140

236

533

2 1 298

1 359

538

240

193

535

July Aug.

769 313

792

816

804

769

714

705,

725

714

692

649

588

578

558

539

510

483

465

447

429

408

400

391

375

357

351

335

328

320

328

320

Per 

square 

mile

0. 662

 434

'.385

. 926

319

pQO

. £9O

.502

1.13

4.89

2 89

l!l4

.511

.411

1.14

a

298

290

289

283

275

264

261

254

250

246

a

a

a.

a

246

243

240

239

239

232

220

210

aZIO

a220

a 220

218

218

a218

211

a

203

208

206

204

197

Sept.

197

a200

218

204

190

184

190

211

208

204

200

197

190

187

al88

190

a205

194

190

197

204

197

190

184

171

187

174

180

184

187

Runoff

Inches

0.76

.48

.44

12.56

.37

.31

. 58

1.27

5. 64

3. 23

l!32

!46

15.45

Ac re- feet

19,130

12^140

11.110

315,100

9,220

7,780

14,490

31,720

141,300

33)060

14,740

11,510

387,100

* Winter discharge measurement made on this day.

a No gage-height record or gage readings In error or not representative of average for day; discharge Interpolated, or computed on basis of weather records and records for Johnson Creek at 

Yellow Pine and Panther Creek near Shoup.

Note.- Stage-discharge relation affected by Ice Nov. 16, Dec. 17 to about Mar. 13 (no gage-height 

record Dec. 19, 21, Jan. 19 to Mar. 13; discharge computed on basis of weather reoorfs and records 

for Johnson Creek at Yellow Pine and Panther Creek near Shoup).
232 SALMON RIVER BASIN 

South Fork Salmon River near Knox, Idaho

Location.- Water-stage recorder, lat. 44°39', long. 115°42', in NW£ sec. 11, T. 15 N., R. 

6 E. , 800 feet downstream from Curtis Creek, 1 mile upstream from Warm Lake Creek, 1? 

miles southwest of Knox, and 21 miles northeast of Cascade.

Drainage area.- 92 square miles .

Records available.- September 1928 to September 1947.

Average discharge.- 19 years, 130 second-feet.

Extremes.- Maximum discharge during year, 1,410 second-feet May 9 (gage height, 6.13 feet): 

minimum, 30 second-feet Oct. 29, but may have been less during winter period.

1928-47: Maximum discharge observed, 1,560 second-feet June 9, 1933 (gage height, 

4.69 feet, site and datum then in use), from rating curve extended above 1,000 secondfeet; minimum observed, 16 second-feet Feb. 17, Aug. 19, 20, 1931, Nov. 16, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion above station.

g tables, water year 1946-47, except periods 

(gage height. In feet, and discharge, In sec

of Ice effect 

nd-feet)

Oct. 1 to Jan. 21

116

163

2.5

2.6

2.7 

2.9

Jan. 28 to Sept. 3O

3.2 157

3.5 227

3.8 315

4.2 458

4.6 624

5.0 817

5.5 1,070

6.0 1,340

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

54

86

59

52

49

47

46

46

46

45

44

44

44

44

44

44

44

44

44

47

91

130

110

71

70

82

63

59

49

54

50

Nov.

50

43

43

52

54

54

54

49

46

47

46

45

45

47

45

43

50

60

146

99

78

68

87

84

71

68

73

99

110

93

-

Dec.

80

72

72

*71

71

74

70

66

65

63

70

86

110

151

156

95

54

70

80

70

68

70

64

62

64

66

65

60

52

52

52

Jan. Feb

1

> 55

« 50

1 

I

Month

October .......................

November ...... ...............

December ...... ...............

Calendar year 194fi .........

January ................ .....

February ......................

March . . .............. .......

April . . .............. .......

Maw way .... ............... . . ...

June ...................... ...

July ....... ..................

August ..... ..................

September ..................

Water year 1946-47 ..... ....

45

 42

41

40

45

48

52

65

59

56

58

58

56

56

52

55

55

55

55

55

55

55

50

_

-

-

Secondfoot-days

1 802

1 949

2J321

64,150

1, 585

1,433

2 , 620

6 ,328

25,563

15,144

3,911

1,634

1,379

65,669

Mar.

54

56

56

55

54

50

56

55

55

56

55

56

55

58

61

65

76

83

93

101

*110

118

124

120

118

118

20

24

36

40

42

Maximum

130

146

156

970

65

142

458

1,330

857

222

90

65

1,330

Apr.

130

126

120

122

112

105

99

99

99

97

97

103

124

175

220

240

254

251

246

296

280

271

266

249

260

289

332

377

431

458

-

May

485

680

892

962

957

962

1,050

1,160

1,330

1,080

887

842

837

757

728

723

723

699

704

728

752

747

723

747

787

832

842

787

718

675

767

Minimum

44

43

52

40

50

97

485

235

72

42

40

-

June

733

728

652

629

551

551

530

757

857

699

629

576

555

530

505

530

559

501

485

447

395

366

346

325

315

312

309

280

257

235

-

Mean

58 . 1

65.0

74 .3

176

51.1

51 . 2

84 . 5

211

825

505

126

52 , 7

46.0

180

July

222

210

2OO

193

186

177

170

164

155

149

142

134

130

124

118

114

110

106

103

99

95

92

88

86

84

83

79

76

76

74

72

Per 

square 

mile

0.632

.707

.814

1 QT

.555

.557

2!29

5.49

1.37

.573

.500

1.96

Aug.

70

67

65

64

61

59

58

56

55

55

55

54

54

52

51

49

48

48

47

51

51

52

55

49

47

46

45

44

42

42

42

Sept.

41

40

54

46

41

40

52

56

51

55

46

45

44

42

42

45

65

52

47

46

45

44

42

41

42

45

44

42

42

42

-

Runoff

Inches Acre feet

0.73 3,570

.94 4,60O

oc qc 1 ?7 ?OO

.64 3,140

.58 2,840 

1.06 5,200

2.56 12,550

10.33 50,700

6.12 30.O4O 

1 . 58 7 , 76O

.66 3,240 

.56 2,740

26.55 130,200

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Nov 

Feb. 19, 20, Feb. 24 to Mar. 1, Mar. 5, 6, 3O, 31 (nc 

Feb. 1-6; discharge computed on basis of weather recc 

Pine and other stations on nearby streams.

. 2-5, 13, 15, 16, Dec. 1-3, Dec. 16 to Feb. 11, 

gage-height record Dec. 26, 27, Jan. 22-27, 

ds and records for Johnson Creek at Yellow
SALMON-RIVER BASIN 233

Johnson Creek near Landmark ranger station, Idaho

Location.- Water-stage recorder, lat. 44°41', long. 115°33 I , in sec. 31, T. 16 N., R. 

8 K., 0.5 mile downstream from Bob Cat Creek, 0.8 mile upstream from Lunch Creek, 

If miles north of Landmark ranger station, and 20 miles south of Yellow Fine.

Drainage area.- 54.7 square miles.

Records available.- Octobsr 1942 to September 1947.

Extremes.- Maximum discharge1 during year, 1,240 second-feet May 8, 9 (gage height, 5.62 

reet); minimum not determined (probably occurred during period of ice effect); minimum gage height, 1.88 feet Nov. 12.

1942-47; Maximum discharge, that of May 8, 9, 1947; minimum observed, 7.8 secondfeet Feb. 6, 1943, discharge measurement; minimum gage height recorded, 1.79 feet 

Nov. 25, 1943, Nov. 16, 1944.

Remarks.- Records good except those for periods of ice effect, which are poor. During 

late fall of 1936, the Bureau of Reclamation cut a transmountain canal to divert 

a small flow from a tributary of Johnson Creek to Deadwood River Basin to supplement 

storage in Deadwood Reservoir. Discharge measurements of June 11 and July 22 indicated 

flow in this canal of 21.5 and 4.48 second-feet, respectively.

Rating table, water year 1946-47, except periods of Ice effect

(gage height, In feet, and discharge, In second-feet)

(Shlftlng-oontrol method used May 7-9)

1.8

1.9

2.0

2.1 

2.3 57

2.6 

2.9 

3.2 

3.6 

4.0

105

163

233

352

494

4.4 

4.8

5.3

665

883

1,220

Discharge, in second-feet, water year October 1948 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

27

48

30

25

22

20

19

IS

IS

18

16

17

16

16

16

16

16

17

16

18

34

47

50

33

38

47

32

29

28

27

27

Nov.

25

20

30

31

29

' 25

-

Dec.

(«)

25

20

1"

Jan.

13

12

 * .

Month

Octobflf . . - - . - ... ...

November ......................

mliftr _ . - .

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

(»

9

11

-

_

-

Secondfoot-days

801

730 

665

36,438

367

288

485

2,196

19,913

9,757

1,925

562

484

38,173

Mar.

U

C)

. 20

Maximum

50

31

660

_

_

_

266

1,150

583

132

25

27

1,150

Apr.

25

38

40

49

64

68

72

82

90

96

102

102

107

123

152

190

230

266

-

May

320

472

670

779

813

883

969

1,100

1,150

796

646

623

642

6OO

596

614

605

566

554

592

600

587

541

541

566

578

578

525

461

439

502

Minimum

16

:

.

____

320

140

26

13

13

-

June

487

502

443

439

336

390

359

468

583

476

425

355

333

320

304

326

355

317

295

272

236

218

206

199

194

196

206

172

155

140

Mean

25.8

24.3 

21.5

99.8

11.8

10.3

15.6

73.2

642

325

62.1

18.1

16.1

105

July

132

125

119

112

105

98

95

88

83

78

72

68

63

58

53

50

48

45

43

40

38

37

36

34

33

32

30

29

28

27

26

Per 

square 

mile

0.472

.444 

.393

1.82

.216

.188

.285

1.34

11.7

5.94

1.14

.331

.294

1.92

Aug.

25

24

24

23

22

21

20

19

19

19

18

18

18

18

17

17

16

16

16

17

18

18

20

18

17

16

14

14

14

13

13

Sept.

13

13

IS

17

15

14

16

19

18

23

18

16

15

14

14

15

27

21

18

17

15

14

14

14

14

15

15

14

14

14

Runoff

Inches

0.54

.50 

.45

24.77

.25

.20

.33

1.49

13.54

6.63

1.31

.38

.33

25.95

Acre feet

1,590-

1,450 

1,320

72,280

728

571

962

4,360

39,500

19,350

3,820

1,110

960

75,720

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by Ice Oct. 31 to Nov. 18, Nov. 21 to Apr. 13 (no gagehelght record Jan. 27 to Feb. 3; discharge computed on basis of weather records, and records for 

station at Yellow Pine and other stations on nearby streams).

881401 O- 50 - 16
234 SALMON RIVER BASIN

Johnson Creek at Yellow Pine, Idaho

Location.- Water-stage recorder, lat. 44°58', long. 115°30', in NE£ sec. 29, T. 19 N., R. 

BE., 700 feet upstream from mouth and a quarter of a mile southwest of Yellow Pine 

post office.

Drainage area.- 213 square miles.

Records available.- August 19?8 to September 1947.

Average discharge.- 19 years, 306 second-feet.

Extremes.- Maximum discharge during year, 4,530 second-feet Hay 9 (gage height, 6.94 

feet) ; minimum, 53 second-feet Feb. 9 (gage height, 1.02 feet).

1988-47: Maximum discharge, 5,150 second-feet June 9, 1933 (gage height, 7.62 feet) 

from rating curve extended above 2,800 second-feet; minimum, 22 second-feet Nov. 30, 

1933; minimum gage height, 0.70 foot Nov. 30, 1937.

Remarks.- Records good. Small diversion from Johnson Creek Basin to Deadwood River Basin 

(see "Remarks" for station near Landmark ranger station).

Rating table, water year 1946-47 (gage height, in feet, 

and discharge, in second-feet)

1.1 64 2.3 418 

1.2 80 2.6 560 

1.4 118 3.0 770 

1.6 167 3.5 1,070 

1.9 260 4.0 1,420

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.

114 

190 

149 

130 

120

114 

112

106 

108 

102

100 

102 

98 

98 

98

98 

98 

98 

98 

102

144 

199 

247 

173 

173

247 

179 

162 

134 

146 

130

Nov.

136 

106 

104 

125 

127

127 

125 

118 

112 

118

114 

94 

98 

116 

104

93 

112 

132 

164 

130

118 

118 

139 

125 

123

120 

125 

136 

139 

130

Dec.

125 

127 

125 

125 

125

127 

116 

125 

120 

116

125 

127 

134 

146 

157

132 

93 

112 

149 

130

132 

132 

125 

120 

123

127 

125 

104 

98 

100 

100

Jan.

110 

89 

100 

108 

108

106 

108 

106 

106 

108

108 

102 

104 

100 

89

102 

100 

98 

102 

98

100 

98 

93 

102 

93

100 

91 

72 

91 

87 

85

Feb.

91 

96 

89 

89 

91

89 

87 

84 

82 

89

94 

100 

106 

96 

96

98 

98 

94 

93 

85

96 

93 

93 

93 

93

93 

89 

78

Mnnth SecOtldMonth foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1946 ......

ary

4,169 

3,628 

3,822

145,090

ember .....................

3,074 

2,575 

3,537 

10,779 

38,797" 67,420 

10,408 

3,557 

2,873

ter year 1946-47 .......... 154,^39

Mar

89 

93 

91 

89 

87

78 

89 

87 

85 

91

89 

85 

85 

87 

91

96 

104 

112 

120 

125

136 

146 

149 

146 

141

144 

139 

149 

159

176 

179

Maximum

247

164 

157

2,270

110 

106 

179 

1,030 

4,069 

1,990 

615 

154 

108

4,060

Apr.

173 

173 

170 

167 

162

159 

157 

157 

157 

151

151 

149 

167 

215 

282

334 

392 

392 

384 

432

440 

445 

458 

436 

458

545

666 

814 

963 

1,030

4.5 1,830 

5.0 2,300 

6.0 3,390 

6.6 4,110

1946 to September

May

1,110 

1,610 

2,200 

2,460 

2,520

2,680 

3,020 

3,580 

4,060 

2,640

2,080 

1,940 

1,990 

1,850 

1,840

1,920 

1,930 

1,870 

1,790 

1,960

2,060 

2,060 

1,950 

2,010 

2,100

2,240 

2,270 

2,090 

1,840 

1,750 

2,000

Minimum

98 

94 

93

75

72 

78 

78 

149 

1,110 

640 

162 

87 

85

72

June

1, 

1, 

1, 

1, 

1,

1, 

1,

I, 

1,

1,

J., 

1,

1, 

1,

1,

1,

Mean

134 

121 

123

398

99.2 

92.0 

114 

359 

2,174 

1,293 

336 

115 

95.8

424

970 

990 

730 

660 

490

490 

440 

790 

990 

640

480 

340

300 

270 

250

330

420 

310 

270 

160

000 

945 

897 

885 

867

855 

909 

781 

698 

640

1947

July Aug.

615 1 154 

600 149 

590 144 

560 139 

530 134

510 130 

491 125 

468 123 

445 118 

427 118

401 118 

371 116 

346 116 

326 112 

307 110

292 108 

278 104 

267 104 

253 102 

240 106

234 110 

221 118 

208 125 

202 112 

193 106

190 102 

179 96 

173 93 

167 91 

162 87 

162 87

Per 

square 

mile

0.629 

.568 

.577

1.87

.466 

.432 

.535 

1.69 

10.2 

6.07 

1.58 

.540 

.450

1.99

Sept.

87 

85 

96 

100 

89

85 

89 

106 

102 

108

104 

94 

89 

87 »7-

93 

112 

114 

106 

102

102 

98 

93 

89 

91

91 

93 

93 

94 

94

Runoff

Inches

0.73 

.63 

.67

25.34

.54 

.45 

.62 

1.88 

11.77 

6^775 

1.82 

.62 

.50

fT.OO

Acre-feet

8,270 

7,200 

7,580

287,700

6,100 

5,110 

7,020 

21,380 

133,700 

76,950 

20,640 

7,060 

5,700

306,700
SALMON RIVER BASIN 235

Secesh River near Burgdorf, Idaho

Location. - Water-stage recorder, lat. 45°14', long. 115M9' , In N| sec. 23, T. 22 N..R. 5 

K., at highway bridge If miles upstream from Long Gulch Creek and 5j miles southeast of 

Burgdorf.

Drainage area.- 102 square miles.

Records available.- April 1943 to September 1947.

Extremes.- Maximum discharge during year, 1,580 second-feet May 7 (gage height, 7.12 feet); 

minimum not determined, occurred during winter period.

1943-47: Maximum discharge recorded, that of May 7, 1947; minimum observed, 29 second-feet (discharge measurement) Jan. 30, 1945, but may have been less during periods of 

ice effect.

Remarks.- Records good except those for periods of ice effect, which are poor. 

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

58 

92

74 

67 

71

70 

65 

61 

61 

59

58 

58 

58 

58 

59

56 

56 

55 

59 

62

111 

158 

137 

*96 

127

158- 

94 

90 

74 

78 

76

Nov.

69 

60 

60 

65 

75

74 

71 

70 

69 

66

67 

55 

55 

65 

55

45 

65 

88 

162 

75

70 

70 

75 

70 

70

70 

70 

70 

70 

60

Dec.

65 

65 

60 

60 

60

60 

50 

60 

60 

60

60 

65 

70 

80 

85

50 

30 

*48

45

} "

Jan.

40 

. 35

[ 

Month

Octo 

Nove 

Dece

Ca

Jami 

Febi 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1946 

&rv

1 .........................

st ........................

ember .....................

ter year 1946-47 ..........

Feb.

33 

35

Secondfoot-days

2,456 

2,106 

1,653

62,826

1,135 

956 

1,795 

5,707 

28,981 

15,316 

4,959 

2,089 

1,865

69,018

Mar.

(*) 

> 35

40

50 

60 

70 

dO 

85

90 

95 

95 

85 

80

75 

70 

70 

80 

90 

90

Maximum

158 

162 

85

971

95 

575 

1,450 

837 

287 

88 

90

1,450

Apr.

90 

85 

80 

80 

76

72 

71 

71 

70 

71

71 

75 

94 

137 

187

212 

237 

224 

224 

230

217 

200 

194 

194 

227

287 

364 

444 

548 

575

May

603 

854 

1,110 

1,200 

1,230

1,280 

1,360 

1,450 

1,390 

1,080

917 

849 

821 

777 

766

788 

793 

761 

815 

821

843 

826 

804 

832 

865

900 

941 

883 

783 

756 

883

Minimum

55 

45

-

70 

603 

305 

90 

52 

50

_

June

837 

783 

703 

698 

632

652 

603 

652 

662 

584

548 

494 

490 

465 

448

490 

594 

503 

465 

432

389 

357 

340 

337 

324

327 

486 

382 

334 

305

Mean

79.2 

70.2 

53.3

172

36.6 

34.1 

57.9 

190 

935 

511 

160 

67.4 

62.2

189

July

287 

270 

259 

248 

234

224 

214 

207 

198 

187

183 

174 

162 

156 

152

146 

137 

133 

127 

124

118 

115 

113 

109 

106

106 

101 

96 

92 

91 

90

Per 

square 

mile

0.776 

.688 

.523

1.69

.359 

.334 

.568 

1.86 

9.17 

5.01 

1.57 

.661 

.610

1.85

Aug.

88 

85 

84 

79 

78

76 

74 

71 

70 

71

71 

70 

69 

67 

64

64 

61 

60 

59 

61

71 

69 

71 

66 

62

58 

56 

56 

53 

52 

53

Sept.

52 

50 

60 

58 

52

51 

62 

80 

67 

76

71 

61 

56 

54 

53

66 

90 

78 

70 

64

61 

59 

58 

56 

58

62 

64 

59 

58 

59

Runoff

Inches

0.90 

.77 

.60

22.91

.41 

.35 

.65 

2.08 

10.57 

5.58 

1.81 

.76 

.68

25.16

* Winter discharge measurement made on this day.

Acre feet

4,870 

4,180 

3,280

124,600

2,250 

1,900 

3,560 

11,320 

57,480 

30,380 

9,840 

4,140 

3,700

136,900

Note.- Stage-discharge relation affected by ice Nov. 2-4, 12-17, Nov. 20 to Apr. 4 (no gageheight record Dec. 28 to Jan. 11; discharge computed on basis of weather records and records for 

Warren Creek and other nearby streams).
236 SALMON RIVER BASIN

Warren Creek near Warren, Idaho

Location.- Water-stage recorder, lat. 45°17', long. 115°42', in sec. 3, T. 22 N., R. 6 E., 

StTTeet dowristream from bridge on Warren-McCall road, a tenth of a mile downstream from 

Steamboat Creek, and 1.3 miles northwest of Warren.

Drainage area.- 37 square miles.

Records available.- February 1943 to September 1947.

Extremes.- Maximum discharge during year, 541 second-feet May 7 (gage height, 5.39 feet); 

minimum, 5.5 second-feet Dec. 17 (gage height, 2.45 feet).

1943-47: Maximum discharge observed, 790 second-feet May 27, 1943 (gape height, 

5.37 feet, site then in use), from rating curve extended above 350 second-feet; minimum, 

4.2 second-feet Dec. 27, 1943 (gage height, 2.31 feet).

Remarks.- Records good. No diversion or regulation above station. Small amount of flow 

Bypasses station through debris from dredging operations.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

15

26

20

18

18

17

16

16

15

14

14

14

14

14

14

13

13

12

13

13

18

28

28

22

27

32

24

22

19

20

17

Nov.

19

14

14

18

18

18

18

16

15

16

15

12

13

16

13

11

16

17

28

20

18

19

21

19

19

18

18

18

18

13

-

Dec.

17

17

16

16

16

15

12

16

16

16

16

16

16

16

16

12

8.8 14

17

16

15

14

13

13

13

14

13

11

12

13

13

Jan.

13

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

12

9.5

10

blO

blO

blO

Month

October .......................

November ......................

December ......................

Calend&r year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

11

11

11

10

10

9.9

10

10

10

10

11

11

12

12

11

11

10

9.7

9.9

9.5

10

10

10

1011

9.9

9.5

10

_

-

Secondfoot-days

566

508

448 . 08

15,757.8

344.5

290.4

567.7

1 , 849

10,078

3,608 

975

414

385.9

20,035.3

Mar.

11

11

11

10

9.9

*9.2

10

10

9.9

9.9

9.9

9.9

10

11

13

16

19

23

26

28

30

32

31

28

26

24

22

23

26

29

29

Maximum

32

gc

17

250

13

12

32

18E

518

230

57

17 

18

518

Apr.

29

28

27

27

25

24

22

23

22

21

21

22

29

43

60

70

77

77

76

76

72

71

69

67

74

88

113

140

168

188

-

May

206

306

437

472

479

499

518

502

499

414

354

318

295

274

267

269

272

2fi5

874.

274

276

269

265

265

269

276

283

265

237

223

256

Minimum

12

11

8.0

*"* 9 5

9 5

g!2

21

206

64 

18

11 

9.9

8.8

June

230

214

197

188

170

170

157

159

153

138

128

115

109

104

100

109

119

106

99

94

84

77

74

70

67

68

97

77

71

64

-

Mean

18 . 3

16.9

14.5

43.2

11.1

10.4

1 a » J.O. o

61.6

325

120 

31.5

13.4 

12.9

54.9

July

57

53

52

50

47

45

42

41

39

38

37

34

32

31

29

28

27

26

25

24

22

22

22

21

20

20

19

18

18

18

18

Per 

square 

mile

0.495

.457

*QO * °*"-

1.17

.300

281

 495

1.66

8.78

3 24

851

. 362 

.349

1.48

Aug.

17

16

16

15

15

15

14

14

14

14

14

13

13

13

12

12

12

12

11

13

16

15

15

13

12

12

12

11

11

11

11

Sept.

10

9.9

13

12

11

11

12

15

14

14

13

12

12

11

11

13

18

18

15

15

14

13

12

12

12

13

13

12

12

13

-

Runoff

Inches

0.57

.51

AC.

' °

15.84

.35

.29

.57

lo!_13

3.* 6 3

!42

.39

20.15

Acre-feet

1,120

1,010

890

31,250

683

576

1,130

3,670

19, 990

7,160

1,930

821 

765

39,740

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SALMON RIVER BASIN 237

Mud Creek near Tamarack, Idaho

Location.- Water-stage recorder, lat. 45°00', long. 116°21', in sec. 9, T. 19 N., R. IE. 

u.s mile upstream from Little Mud Creek, 3-ir miles northeast of Tamarack, and 5 miles 

upstream from mouth.

Drainage area.- 15.8 square miles.

Records available.- April 1937 to September 1940 (incomplete), September 1945 to Sepcemder ia47.

Extremes.- Maximum discharge during year not determined, occurred during period of no 

gage-Height record; minimum, 1.1 second-feet Sept. 5-7, 14-16; minimum gasje height 

recorded, 2.03 feet Oct. 18.

1937-38, 1945-47: Maximum discharge observed, about 300 second-feet, p-obably on 

May 1, 1938 (gage height, 3.34 feet, from floodmark, site and datum then'in use); 

minimum, probably less than half a second-foot during late summer of 1937.

Remarks.- Record good except those for periods of ice effect or no gage-height record, 

wmcn are poor. No diversion or regulation.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.4

2.9

2.4

2.2

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.2

2.2

2.2

3.4

5.0

7.5

5.7

4.8

5.0

5.7

3.9

3.2

2.9

3.0

2.9

Nov.

2.7

2.7

2.7

3.3

3.4

3.4

3.2

2.7

2.7

2.7

2.7

2.5

2.7

3.0

3.0 "

3.0

3.2

18

48

36

17

14

18

19

17

16

21

35

43

33

-

Dec.

30

25

21

23

25

31

31

28

»25

23

60

20

Jan.

10

. 5

3

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

Uav nay ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

(»

3

8

IS

13

14

13

13

12

11

10

-

-

-

Secondfoot-days

94.7

384.6

1,082

8,323.6

183

209

1,211.6

1,843

651.5

232.9

90.3

46.3

39.9

6,068.3

Mar.

10

10

9

9

9

9

9.7

9.4

9.1

10

10

9.7

9.7

11

14

22

3960'

75

80

90

-9.5

 88

78

68

62

60

58

58

60

70

Maximum

7.5

48

-

256

14

95

90

58

13

4.8

1.7

1.7

-

Apr.

68

66

64

60

54

50

45

45

43

41

39

40

48

65

84

90

87

84

76

74

68

65

61

56

55

58

62

66

67

62

-

May

54

55

58

54

47

40

34

30

32

25

20

20

17

15

13

12

11

11

10

9.4

9.1

8.4

8.1

7.8

7.5

7.5

7.3

7.0

6.8

6.8

7.8

Minimum

2.1

2.5

-

1.6

g

39

6.6

1 i.'z8

1.1

1.1

June

7.8

7.8

7.5

7.8

8.1

8.1

7.5

11

11f.i

8.8

7.8

7.5

7.3

7.0

7.5

13

8.8

8.4

8.1

7.3 7.-0

6.5

6.2

6.0

6.0

6.2

6.0

6.0

5.5

Mean

3.05

12.8

34.9

22.8

5.90

7.46

59. 1

61.4

21.0

7.76

2 . 91

1 49

l'.3Z

16.6

July

.8

.5

.5

.5

.1

3.9

3.7

3.7

3.4

3.2

3.2

3.2

3.0

3.0

2.7

2.7

2.6

2.6

2.5

2.4

2.4

2.2

2.2

2.0

e.o

2.1

2.0

1.8

1.8

1.8

1.8

Per 

square 

mile

0.193

.810

2.21

1.44

.373

.472

2.47

3.89

1.33

.491

.134

.094

.084

1.05

Aug.

1.7

L.7

L.7

L.6

L.6

L.5

L.5

L.5

L.6

1.6

1.5

]

]

1.5

L.5

L.5

L.5

L.5-

L.5

L.4

l.t

1.5

1.5

]

]

]

L.5'

L.6

L.5

1.5

1.5

:

]

]

:._

.4

.3

.3

.2

1.2

Sept.

1.2

1.2

1.5

1.3

1.2

1.1

1.7

1.5

1.4

1.4

1.3

1.2

1.2

1.2

1.1

1.4

1.5

1.5

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.4

1.4

1.4

Runoff

Inches

0.22

.91

2.55

19.60

.43-

49

2 . ooDC 

4.34

1.53

.55

.21

.11

.09

14.28

Acre- feet

188

763

2,150

16,510

363

415

2,400

3,660

1 290

462

179

32

79

12,040

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by Ice Nov. 1-4, 8-13, 15, 16, about Dec. 17 to Feb. 21, 

Feb. 23 to Hap. 6. No gage-height record Dec. 8, Dec. 10 to Feb. 3, Mar. 18-22, Mar. 26 to Apr. 8; 

discharge computed on basis of weather records and records for stations on nearby streams.
238 GRANDE RONDE RIVER BASIN

Grande Ronde River near Hllgard, Oeg.

Location.- Water-stage recorder, lat. 45°19', long. 118 C1 16 I , near center of sec. 11, T. 3 

S., K. 36 E., half a mile upstream from lower reservoir site of Bureau of Reclamation, 

three-quarters of a mile upstream from Spring Creek, and 3 miles southwest of Hilgard.

Drainage,area.- 489 square miles.

Records available.- October 1945 to September 1947 in reports of Geological Survey. March 

J.937 to September 1945 in files of State engineer.

Average discharge.- 10 years, 241 second-feet.

Extremes.- Maximum discharge during year, 3,fc40 second-feet Dec. 12 (gage height, 5.22 

feet); minimum, 7.0 second-feet Nov. 13 (gage height, 0.67 foot).

193-7-47: Maximum discharge, that of Dec. 12, 1946; minimum, 6 second-feet Aug. 10, 

12-29, Sept. 1-4, 1940.

Remarks.- Records good ,xcept those for periods of ice effect or no gage-height record, 

which are poor. Wo regulation. Several small diversions above station for irrigation.

Rating tables, water year 1946-47, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Dec. 11 Dec . 12 to Sept . 3O

0.8 13 1.4 124 0.7 15 1.2 107 2.O 373 3.5 1,110

1.0 29 1.6 193 .8 24 : .4 168 2.5 570 4.0 1,560

1.2 63 1.8 265 1.0 54 1.7 267 3.O 8OO 4.5 2.19O

Discharge, in second-feet, water year October 1946 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.

23

24

24

27

34

34

36

39

36

34

33

30

30

29

29

26

26

26

28

3fc

83

75

89

72

78

92

69

59

50

52

39

Nov.

55

44

30

41

42

57

55

46

34

50

44

28

18

39

52

39

50

61

89

75

72

86

105

127

118

168

218

261

261

200

"

Dec.

186

158

141

131

121

»105

114

102

98

95

201

2,070

*1,300

1,020

894

»710

414

351

b330

309

270

230

168

14C

152

187

16S

96

69

59

b60

Jan.

b60

b60

b6O

b60

b62

b64

b66

b69

b75

b83

b90

96

96

b93

b90

b86

b84

b83

b83

b84

85

76

69

113

190

344

298

b270

b240

223

203

Feb.

184

233

270

230

210

190

190

19O

»181

146

149

358

518

542

*542

660

646

578

506

454

426

450

510

538

466

380

270

330

-

-

-

Month

October ............... ...................

November. ........................ .........

December. ................................ .

Calendar year 1946 ..... ....... .......

January. ..................................

February. ..................................

March. ....................................

April ......................................

May. .......................................

June .......................................

July

August .....................................

September ..................................

Water year 1946-47 ......................

Mar.

250

267

243

223

197

152

194

174

168

316

384

302

281

320

380

490

602

673

696

668

646

720

760

682

624

590

538

514

506

538

554

Apr.

1

1

1

Secondf cot-days

1,359

2,565 

10,449

99,208

3,655 -

10,347

13,652

19,364

13,801

8,037

1,662

609

645

86,145

57U

566

558

530

518

498

466

486

506

502

486

462

454

494

566

602

720

030

070

100

984

850

760

678

624

610

628

664

682

700

-

May

655

745

838

850

800

760

755

730

750

602

522

478

442

395

369

348

334

312

302

295

281

267

247

233

223

213

216

200

181

194

264

Maximum

92

261

2,070

2,070

344

660

760

1,100

850

530

113

27

29

2,070

June

213

250

292

323

291

267

243

295

49S

530

494

43S

392

351

?12

295

295

253

223

210

203

178

162

149

137

134

162

174

152

131

Minimum

23

18 

59

15

60

146

152

454

181

131

27

15

16

15

July

113

101

93

87

82

76

74

72

64

62

64

62

54

52

52

49

46

42

39

36

34

33

33

5!

32

32

32

30

29

28

27

Aug.

27

25

24

22

21

21

20

20

20

21

22

21

20

20

19

18

18

18

17

17

18

19

19

20

19

18

17

16

15

17

20

Sept.

20

IS

17

17

16

17

20

27

29

28

28

23

21

20

19

18

20

21

22

22

22

20

20

20

20

21

25

22

24

28

 Runoff in Mean acre-feet

4? . 8 2 , 7OO

85. S 5,090 

337 20^730

272 196^800

118 7,250

370 20,520

440 27,080

645 38,410

445 27,370

2£8 15,940

53. 6 3,300

19.6 1,210

21.5 1,280

236 170,900

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
GRANDE RONDE RIVER BASIN

Location

November

Grande Ronde River at La Grande, Oreg.

_______revised) .- Water-stage recorder, lat. 45°21', long. 118°iJ«', in sec. 36, T.

 a t'. , H . 37 E. , 2 miles northwest of La Granu« and 4 miles dowi.slream from Fivepoint

Creek. Datum of gage is 2,831.25 feet abo/e mean sea level, datum of 1929. 

Drainage area.- 678 square miles. 

Records available.- February 1918 to June 1923, October 1925 to September 1947.

iyU3 to September 1915 at Hilgard, 4 miles upstream. 

Average discharge.- 33 years (1905-9, 1910-11, 1912-15, 1918-20 1921-22, 1925-47),

346 second-feet. 

Extremes.- Maximum discharge during year, 5,320 second-feet Dec. 12 (gage height, 7.58

feet); minimum, 14 second-feet Aug. 29.

1903-15, 1918-23, 1925-47: Maximum discharge, 8,880 second-feet Mar. 18, 1932

(gage height, 8.90 feet): minimum, 3.9 second-feet Aug. 26, 1940 (gage height, 1.23

feet) . 

Remarks.- Records good except those for period of ice effect, which are poor. Some

 discharge measurements made at cable 3 miles above station. Small diversions above 

station for irrigation.

Hating taoles, water year 1946-*i, except periods of ice effect 

(gage height, in feet and discharge, in second-feet)

1 to Dec. 11 Dec. 12 to Bept. 30

1.7 26 2.3 150 1.4 12

1.8 38 2.5 210 1.5 18

1.9 55 2.8 330 1.6 27

2.1 98 3.1 475 1.7 40

l.B 54 2.4 210 4.0 1.130

1.9 72 2.7 335 4.6 1,660

2.0 92 3.1 540 5.3 2,430

2.2 143 3.5 775 6.4 3,790

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

27

27

28

31

37

40

40

45

43

40

38

36

36

36

36

33

32

32

34

40

73

86

98

86

89

103

89

71

65

65

55

Nov.

61

57

48

46

53

69

67

61

52

59

57

45

30

48

48

38

59

73

93

100

80

106

118

153

150

198

290

362

366

290

-

Dec.

258

214

195

189

183

168

165

156

*150

145

474

3,670

*2,690

1,960

1,650

1,230

756

606

b560

496

425

365

282

242

226

270

274

178

153

132

b!30

Jan.

b!25

121

. t>215

Feb.

 b350

*b290

b350

b86

bl,030

1,110

910

*910

1,110

1,070

959

827

730

668

692

788

861

756

634

470

524

Month

October. ...................................

November. ........................ .........

December. ..................................

Calendar year 1946 ......................

January .................................. .

February ...................................

March. .....................................

April....... ...............................

May. .......................................

June .......................................

July.. ................................... .

August .....................................

September . .................................

Water year 1946-47 ......................

Mar.

425

430

380

355

317

250

304

282

278

496

692

524

485

534

617

762

980

1,090

1,150

1,100

1,040

1,190

1,240

1,110

987

924

834

788

768

820

847

Apr.

1,

1,

1,

1,

1,

1,

1,

Secondfoot days

1,591

3,277

18,592

151,771

6

18J175

21 999

17^919

2 ,007 

660

714

130,014

854

847

827

788

756

716

668

704

749

736

710

668

662

723

847

903

110

640

680

720

490

270

110

987

910

875

889

938

966

980

May

903

1,OJO

1,110

1,T2~0

1,000

994

980

973

1,030

834

710

639

578

518

475

445

425

395

365

355

340

322

294

282

270

254

254

242

218

222

312

Maximum

103

366

3,670

3,670

1,110

1,240 

1,720

1,120

138

31

34

3,670

June

262

290

330

385

335

326

294.

400

622

662

617

551

496

450

390

360

375

312

270

250

242

218

196

182

165

156

192

206

186

156

Minimum

27

30

130

19

250

218

156

32

16

17

16

July

138

124

114

109

99

92

86

82

76

74

76

70

65

63

65

58

54

51

48

46

43

40

39

37

39

40

39

37

36

35

32

Aug.

31

30

28

27

25

24

23

22

22

23

24

24

23

22

21

20

19

18

17

17

17

19

20

20

19

18

17

17

16

17

20

Sept.

22

20

18

17

17

17

21

26

34

31

31

27

24

22

22

22

22

23

24

25

24

23

22

22

22

25

27

36

26

32

uo=r. Runoff in *ean aore-feet

51.3 3,160

109 6,500

600 36,880

416 301,000

209 12,850

649 36,050

710 43,630

957 56,970

578 35,540 

329 19,590

64.7 3,980 

21.3 1,310

23.8 1,420

356 257,900

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
240 GRANDE RONDE RIVER BASIN

Grande Ronde River at Rondowa, Oreg.

Location.- Water-stage recorder, lat. 45°44', long. 117°47', in w£ sec. 23, T. 3 N., R. 

4U E., at Rondowa, 500 feet downstream from Wallowa River. Datum of gage is 2,281.4 

feet above mean sea level, datum of 1929 (Union Pacific System track prof.Me).

Drainage area.- 3,555 square miles.

Records available.- October 1926 to September 1947.

Average discharge.- 81 years, 1,907 second-feet.

Extremes.- Maximum discharge during year, 10,800 second-feet Dec. 12, 15; maximum gage 

Height, 6.83 feet Dec. 12; minimum discharge, 445 second-feet Sept. 5, 6~ (gage height, 

1.15 feet).

1926-47; Maximum discharge, 18,300 second-feet (revised) Mar. 18, 1932 (gage height, 

9.30 feet); minimum, 225 second-feet Dec. 19, 1935.

Revisions.- The figures of maximum discharge for some water years have been revised, 

as snown in the following table. They supersede those shown in the water-supply papers 

indicated.

Water-Supply 

Paper

653...........

673.. .........

693.. .........

738.. .........

753.. .........

813.. .........

863.. .........

883...........

983...........

Water 

year

1928

1929

1932

1933

1936

1938

1939

.Date

May 28

Gage height 

(feet)

6.58

7.70

6.01

9.30

7.1

7.03

6.18

6.47

6.67

Discharge 

(second-feet)

10,100

13,300

8,550

18,300

11,500

11,300

9,000

9,780

10,300

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Many diversions above station for irrigation. Plow slightly regulated by Wallowa Lake 

Reservoir.

Revisions.- Revised figures of discharge for high-water periods in the water years 1927 to 

lyyy, 1932, 1933, 1936, 1938, and 1943 are given herewith. They supersede those published in Water-Supply Papers 653, 673, 693, 738, 753, 813, 863, and 983.

Day 

(water 

year)

1926-27

Hay 15

16

17

18

June 8

9

10

11

12

13

14

15

"1927-28

Jan. 13

14

Mar. 10

11

12

1928-29

Hay 22

23

24

25

June 16

1931-32

Mar. 18

19

Apr. 16

Discharge 

(secondfeet)

7,230

8,310

8,700

7,120

8,730

9,590

8,520

8,160

,940

,940

,860

,500

,660

,030

,560

11,800

8,340

7,070

7,690

8,110

7,030

7,810

12,900

14,000

9,210

Day 

(water 

year)

1931-32

Apr. 17

18

19

20

May 2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

1932-33

May 30

31

June 1

Discharge 

(secondfeet)

8,780

8,360

7,880

7,470

7,260

7,540

8,420

8,650

8,650

8,860

9,160

9,320

9,640

10,100

10,400

11,300

11,400

10,100

8,860

8,140

7,960

8,140

8,440

8,920

8,700

7,760

8,140

9,270

9,400

Day 

(water 

year)

1932-33

June 2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1935-36

Apr. 13

14

15

16

17

18

19

20

21

22

23

24

Discharge 

(secondfeet)

9,370

9,670

10,100

10,400

9,720

8,730

7,910

8,360

10,600

10,300

9,920

10,400

10,100

10,800

11,300

10,500

8,600

8,620

8,890

9,100

9,460

9,940

10,800

10,700

10,000

9,430

9,780

9,210

8,970

Day 

water 

year)

1935-36

Apr. 25

May 11

12

13

14

15

16

1937-38

May 27

28

29

1942-43

Mar. 30

31

Apr. 1

2

3

15

16

17

18

19

20

21

Discharge 

(secondfeet)

8,290

8,010

9,180

9,510

10,200

10,100

8,240

7,710

8,570

7,540

8,420

8,940

9,370

8,810

8,490

9,320

10,000

9, '700

9,370

9,830

9,270

8,940
GRANDE RONBE RIVER BASIN

Revised monthly discharge of Grande Ronde River at Rondowa, Oreg.

Month

June ..................

Water year 1926-27.. 

Calendar year 1927..

March. ................

Water year 1927-28. . 

Calendar year 1928..

May 1929. ............. 

June ..................

Water year 1928-29.. 

Calendar year 1929. . 

March 1932. ...........

May 1932. .............

Water year 1931-32.. 

Calendar year 1932..

June ..................

Water year 1932-33.. 

Calendar year 1933.. 

April 1936. ...........

May ...................

Water year 1935-36. . 

Calendar year 1936..

Water year 1937-38. . 

Calendar year 1938. . 

March 1943. ...........

April. ................

Water year 1942-43.. 

Calendar year 1943. .

Secondfoot-days

150,000 

182,290

821,299 

956,837

88.170 

160,730

1,030,214 

856,460

138,590 

134,480

567.540 

557,395

162,290 

227,570 

244,270

908,598 

932,111

169,300 

237,200

806,128 

825,396

196,640 

204,310

666,647 

664,414

713,340 

703,627

105,360 

236,200

1,070,574 

1,037,865

Maximum

8,700 

9,590

9,590 

9,590

7,660 

11,800

11,800 

11,800

8,110 

7,810

8,110 

8.110

14,000 

11,400

14,000 

14,000

9,270 

11,300

11,300 

11,300

10,800 

10,200

10,800 

10,800

8,570 

8,570

8,940 

10,000

10,000 

10,000

Mi nimum

3,230 

3,230

466

1,230 

1,210

470 

393

2,820 

3,060

353 

310

1,620 

5,170 

3,670

301 

340

3,740

3,920

424 

462

1,300 

4,020

256 

256

308 

373

1,900 

5,480

448 

448

Mean

4,839 

6,076

2,250 

2.621

2,844 

5,185

2,815 

2.340

4,471 

4.483

1,555 

1.527

5,235 

7,586 

7,880

2,489 

2,554

5,461 

7,907

2,209 

2,261

6,555 

6,591

1,821 

1,815

1,954 

1,928

3,399 

7,873

2,933 

2,843

Runoff in 

acre-feet

297,500 

361,600

1,628,000 

1.898,000

174,900 

318.800

2, 044 .COO 

l,K99,roO

274, °00 

266.700

1,126,000 

1 .106,000

321,900 

451,400 

484,500

1,802,000 

1,849,000

335,800 

470,500

1,598,000 

1.636.000

390,000 

405,200

1,322,000 

1.318.000

1,415,000 

1,396^000

209,000 

468,500

2,123,000 

2,059,000

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

623

647

647

639

655

647

639

647

647

R39

631

631

631

623

623

615

608

615

615

712

951

924

1,070

969

1,130

1,570

1,250

1,100

1,030

996

942

Nov

951

906

843

834

834

843

861

852

834

843

843

825

772

780

763

72Q

746

807

960

996

942

969

1,120

1,250

1,230

1,570

1,660

1,910

1,900

1,750

~

Dec.

1,580

1,430

1,340

1,280

1,260

1,240

1,200

1,190

1,180

1,170

2,480

8,880

8,700

9,350

10,200

7,780

6,000

4,980

4,200

a3 , 600

a3,000

a2,750

a2,500

Jan.

.al.OOO

a2,20oN

a2,000

al,800

al,500 >al,990

al,300 I

al,250

al,200

al,200p

Feb.

al,800

a2,300

a2,300

a2 , 500

al,900

1,850

1,810

1,740

1,670

1,650

1,690

2,870

3,950

3,730

3,640

3,920

3,840

3,680

3,410

3,100

2,930

2,790

2,810

2,830

2,780

2,590

2,380

2,200

-

-

-

Month

October. ...................................

November. ........................ .........

December ...................................

Calendar year 1946 ......................

January ..................................

February. ...... ...........................

March. .....................................

April. .....................................

Hay

June .......................................

July. ......................................

August .................. ..................

September. .................. ..............

Water year 1946-47 ......................

Mar.

2,090

2,060

2,020

1,970

1,850

1,760

1,710

1,740

1,850

2,810

3,420

3,000

2,690

2,560

2,570

2,740

3,070

3,410

3,640

3,730

3,750

3,970

4,120

3,970

3,780

3,620

3,370

3,170

3,080

3,170

3,300

Apr.

3,320

3,320

3,260

3,170

3,070

2,960

2,790

2,760

2,830

2,790

2,690

2,620

2,620

2,880

3,350

3,620

4,090

5,020

5,360

5,560

5,320

5,080

4,850

4,620

4,430

4,370

4,500

4,810

5,160

5,220

-

Secondfoot-days

24,666

31,114

99,740

985,286

38,95:0

74,660

89,990

116,440

174,710

110,260

42,052

16,886

16,211

835,649

Peak discharge.- Dec. 12 (5 p.m.) 10,800 sec. -ft.: Dec

May

5,100

6,380

7,640

7,960

8,010

8,080

8,520

8,940

8,240

6,890

6,000

5,500

5,160

4,850

4,620

4,540

4,450

4,280

4,260

4,450

4,560

4,540

4,260

4,280

4,520

4,830

5,160

5,160

4,540

4,200

4,790

Maximum

1,570

1,910

10,200

10,200

3,950

4,120

5,560

8,940

5,760

2,180

729

647

10,200

. 15 (6 a.m

June

4,540

4,450

4,070

3,970

3,690

3,780

3,730

4,850

5,760

5,180

4,580

4,180

4,010

3,780

3,680

3,930

4,350

4,260

4,070

3,600

3,050

2,690

2,540

2,480

2,530

2,530

2,880

2,570

2,350

2,180

Minimum

608

720

1,170

525

1,650

1,710

2,620

4,200

2,180

738

457

451

451

. ) 10,800

July

2,060

2,080

2,180

2,150

2,060

2,020

1,990

1,900

1,830

1,780

1,660

1,530

1,430

1,370

1,340

1,240

1,160

1,110

1,050

996

942

906

870

843

843

825

816

807

780

746

738

Aug.

729

720

704

671

655

623

587

566

545

545

538

538

538

538

517

503

503

496

482

482

496

503

517

510

517

510

489

475

469

457

463

Mean

796

1,037

3,217

2,699

1,255

2,666

2,903

3,881

5,636

3,675

1,357

545

540

2,289

Sept.

469

463

457

451

451

451

517

601

580

608

594

566

545

517

510

510

538

573

566

552

538

524

524

517

545

647

615

580

608

594

Runoff in 

acre-feet

48 , 920

61,710

197,800

1,954,000

77,200

148,100

178,500

231,000

346,500

218,700

83,410

33,490

32,150

1,657,000

sec. -ft. : May 8 (3 to

.m. ) 9,370 sec.-ft.; May 28 (4:30 a.m.) 5,460 sec.-ft.; June 9 (6 to 9 a.m.) b,aOO aci.-ft. 

a Ho gage-height record; discharge computed on basis of records for static" at TIV.V.
242 GRANDE RONDE RIVER BASIN

Grande Ronde River at Troy, Oreg.

Location.- Wire-weight gage, lat. 45°57 I , long. 117°27', in NW-j sec. 4, T. f N., R. 43 E. 

(revised) f at bridge at Troy, 100 feet downstream from Wenaha River.

Drainage area.- 3,275 square miles.

Records available.- August 1944 to September 1947.

Extremes.- Maximum discharge observed during year, 30,000 second-feet (supersedes figure 

shown in Water-Supply Paper 1080) Dec. 15 (gage height, 23.20 feet); minimum observed, 

592 second-feet Aug. 18.

1944-47: Maximum discharge observed, that of Dec. 15, 1946; minimum observed, 470 

second-feet Sept. 11, 1944.

Remarks.- Records good except those for periods of doubtrul or no gage-height record, which 

are fair. Plow slightly regulated by Wallowa Lake and Minam Lake Reservoirs. Many diversions for irrigation near La Grande, Enterprise, and Wallowa; no diversion around 

station.

Rating tables, water year 1946-47 (gage height, In feet, 

and discharge, in second-feet)

Oct. 1 to Dec

14.1

15.0

15.5

16.0

16.6

750

1,010

1,550

2,220

3,240

14.7 550

15.0 790

15.5 1,350

16.0 2,090

Dec. 12 to Sept. 30

16.5 2,890

17.0 3,840

17.7 5,520

18.4 7,380

JL9.2 9,950

20.0 13,000

21.2 18,400

23.2 30,000

Discharge, in second-feet, water yesr October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

766

782

782

782

782

766

814

798

798

774

766

766

750

750

750

766

750

766

750

766

1,320

1,150

1,430

1,550

1,700

1,800

1,600

1,360

1,300

1,170

1,150

Nov.

1,150

1,100

1,070

1,080

1,050

1,030

1,030

1,050

1,030

1,030

1,010

992

974

956

956

920

392

1,170

1,320

1,430

1,390

1,340

1,550

1,830

1,850

2,070

2,310

2,530

2,670

2,770

-

Dec.

2,700

2,500

2,220

2,070

1,900

1,880

1,830

1,830

1,830

1,850

g3,240

g!7,400

17,100

23,300

30,000

14,400

9,330

8,220

6,250

5,320

4,820

4,060

3,630

3,240

a3,000

2,860

2,660

2,090

2,000

1,880

1,910

Jan.

1,910

1,790

1,670

1,730

1,790

1,760

1,790

1,760

1,490

1,550

1,490

1,490

1,460

1,490

1,520

1,490

1,520

1,490

1,460

1,490

1,490

1,460

1,460

2,340

2,400

5,270

3,930

2,860

2,750

2,690

2,720

Feb.

2,790

3,390

3,390

3,590

2,860

2,720

2,560

2,430

2,400

2,370

2,400

3,710

d6,300

4,770

5,570

S,090

5,020

4,770

4,480

4,200

4,110

4,060

4,020

4,060

4,110

4,060

3,430

3,060

-

-

-

Month

October. ...................................

November ......................... .........

December ..................................

Calendar year 1946 ................ ....

January ....................................

February ...................................

March. .....................................

April ................... ..................

May. ......................................

June .......................................

July. .................................. ...

August ..................... ...............

September. .................................

Water year 1946-47 ......................

Mar.

3,060

2,960

2,860

2,750

2,660

2,430

2,350

2,350

2,820

3,390

5,420

4,530

4,150

3,880

3,840

4,240

4,820

5,520

a5,700

a5,900

a5,900

6,300

6,460

6,200

6,010

5,270

5,020

4,920

4,630

4,820

5,170

Apr.

5,270

5,170

4,970

4,770

4,340

4,390

4,060

3,930

4,110

3,970

3,840

3,800

a3,800

4,150

4,920

5,170

6,250

7,610

7,730

7,970

7,550

7,050

6,780

6,250

6,250

6,040

6,300

6,460

6,830

6,720

-

Seoondfoot-days

30 954

41^650

187,320

1,380,884

61,510

106,720

136,330

166,450

211,410

126,800

48,510

20,814

21,973

1,160,441

May

6,830

7,670

9,740

9,950

10,300

10,300

10,300

11,300

9,880

8,540

7,670

6,880

6,460

6,090

5,780

5,570

5,270

5,140

5,020

4,970

4,920

4,920

5,170

5,170

5,270

5,520

5,780

5,990

5,270

4,820

4,920

Maximum

1,800

2,770

30,030

30,000

5,270

6,300

6,460

7,970

11,300

6,610

2,540

880

1,010

30,000

June

5,020

5,120

4,920

4,630

4,290

4,290

4,200

a6 , 000

6,610

6,090

5,470

aS.OOO

a4,500

4,430

4,290

4,200

4,480

4,820

4,720

4,060

3,590

3,240

3,030

2,800

2,800

2,800

2,890

3,060

2,890

2,560

-

Minimum

750

92C

1.83C

675

1,460

2.37C

2,350

3,800

4,820

2,560

890

592

606

592

July

2,430

2,460

2,540

2,480

2,270

2,260

2,320

2,220

2,120

2,000

1,960

1,740

1,720

1,550

1,490

1,430

1,230

1,210

1,180

1,180

1,080

1,060

1,020

1,000

1,000

980

960

920

900

910

890

Aug.

880

870

860

820

781

754

736

709

684

676

644

620

606

620

620

606

606

592

606

636

606

620

620

636

652

652

636

620

613

613

620

Mean

999

1,388

6,043

3,783

1,984

3,811

4,398

5,548

6,820

4,227

1,565

671

732

3,179

Sept.

613

613

606

606

606

606

623

745

800

840

800

727

692

668

652

700

709

754

(81

763

772

754

736

727

754

1,010

940

781

790

800

-

Runoff in 

acre-feet

61,400

82,610

371,500

2,739,000

122,000

211,700

270,400

330,100

419,300

251,500

96,220

41,280

43,580

2 , 302 , 000
GRAHDE RONDE RIVER BASIN 243

Catherine Creek near Union, Oreg.

Location. - Water-stage recorder, lat. 45°09', long. 117°47', in SE-J- sec. 2, T. 5 S., R. 40 

E., 3 miles downstream from Little Catherine Creek and 6 miles southeast of Union, Datum of gage is 3,082.11 feet above mean sea level, datum of 1929.

Drainage area.- 105 square miles.

Kecords available.- May 1906 to May 1907 (gage height only), August 1911 to December 1912, 

March to September 1915, February 1918 to August 1919, October 1925 to September 1947.

Average discharge.- 23 years (1911-12, 1918-19, 1925-44, 1945-47), 117 second-feet.

Extremes.- Maximum discharge during year, 844 second-feet May 7 (gage height, 3.44 feet); 

minimum recorded, 18 second-feet Nov. 12, but may have been less during periods of ice 

effect.

1906-7, 1911-12, 1915, 1918-19, 1925-47: Maximum discharge observed, 1,240 secondfeet May 21, 1912, June 3 or 4, 1933; minimum recorded, 4 second-feet Nov. 26, 27, 1930.

Remarks.- Records good March to September, fair October to February except those for

periods of ice effect, which are poor. A few small diversions above station for irrigation, and some water diverted into Big Creek, in Powder River Basin.

Rating tables, water year 1946-47, except period of Ice effect

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used Oct. 1 to Dec. 5)

Oct. 1 to Jan. 28

0.7 21 1.0 47

.8 28 1.2 71

.9 37 1.4 100

Note.- Same as following 

table above 1.4 feet.

Jan. 29 to Sept. 30

1.2 68

1.4 100

1.6 135

1.9 200

281

383

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

24

27

26

27

27

27

27

27

26

26

26

26

25

24

24

22

24

23

23

30

37

44

37

42

52

49

34

30

32

32

27

Nov.

32

30

b29

b28

b3O

34

32

30

31

31

30

24

33

34

32

33

31

34

43

36

32

35

55

46

42

45

51

5.4

56

51

-

Dec.

50

46

45

50

56

56

55

52

»50

47

84

149

216

260

218

*155

112

blOO

b90

b8O

75

68

63

61

57

58

58

54

b53 b52"

b51

Jan.

. b55

102

106

186

155

133

Feb.

151

172

122

102

97

88

b86

b84

b82

b80

b72

*b90

126

124

119

117

114

108

103

97

93

92

90

95

97

97

88

83

-

-

-

Month

October . ...................................

November ......................... .........

December ...................................

Calendar year 1946 ......................

January .................................. .

February. ..................................

March. .....................................

April. .....................................

May........................................

June ....................... ... .... ......

July. ... ................ . .... ...... ...

August .......... ..........................

September. .............. ... ...... ...

Water year 1946-47 .......... ...........

Mar.

77

71

65

63

58

53

52

52

50

54

52

50

50

55

68

95

139

170

193

200

203

208

193

170

149

139

133

137

149

172

170

Apr.

161

151

141

135

126

115

107

110

112

110

110

115

139

200

272

306

343

375

382

364

326

290

275

260

272

303

354

405

436

413

-

Secondfoot-daya

927

1,104

2,621

47,945

2,112

2,869

3,490

7,208

13,506

6,043

2,034

997

891

43,802

May

424

565

672

710

710

710

727

732

630

502

436

405

372

350

343

343

326

316

330

340

343

336

323

326

333

347

354

333

290

278

300

Maximum

52

56

260

796

186

172

208

436

732

340

100

40

41

722

June

272

284

251

232

210

213

210

290

340

290

254

226

213

200

193

218

229

208

198

181

159

147

141

135

131

131

137

126

117

107

-

Minimum

22

24

45

22

.

72

50

107

278

107

41

28

25

ZZ

July

100

97

95

92

88

85

82

78

74

78

77

74

71

68

68

64

62

59

56

53

53

51

50

50

48

47

46

44

42

41

41

Aug.

a 40

a 40

a39

38

37

36

34

34

34

34

34

33

33

32

32

32

31

30

29

29

30

30

30

29

29

28

28

28

28

28

28

Mean

29.9

36 . 8

84.5

131

68.1

102

113

240

436

201

65.6

32.2

29.7

120

Sept.

27

26

26

25

25

26

40

37

35

41

32

31

29

28

28

29

31

31

30

29

28

27

27

26

28

35

30

28

28

28

Runoff in 

acre feet

1,840

2,190 

5,200

95,100

4,190

5,690

6,920

14,300

26,790

11,990

4,030

1,980

1,770

86,890

Note.- * Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Grande Ronde River near Hllgard 

and at La Grande and Powder River at Salisbury, 

b Stage-discharge relation affected by Ice.
244 GRANDE RONDE RIVER BASIN

Indian Creek near Imbler, Oreg.

Location.- Water-stage recorder, lat. 45°26', long. 117°49', in S? sec. 33, T. 1 S., R. 

4U E., 200 yards upstream from North Fork and 7 miles southeast of Imbler.

Drainage area.- 22 square miles.

Records available.- October 1945 to September 1947 in reports of Geological Survey. 

March 1938 to September 1945 in files of Oregon State engineer.

Extremes.- Maximum discharge during year, 484 second-feet May 9, from rating curve exfended a"bove 220 second-feet; maximum gage height, 4.09 feet sometime during period 

Jan. 4-7 (ice Jam); minimum discharge recorded, 1.8 second-feet Oct. 18, but may 

have been less during period of ice effect.

1938-47: Maximum discharge, 730 second-feet May 28, 1946, from rating curve extended above 220 second-feet; maximum gage height, that during period Jan. 4-7, 1947; 

minimum discharge, 0.1 second-foot ,Nov. 15, 1939 (gage height, 0.05 foot).

Remarks.- Records fair June 1 to Sept^ 24, poor Oct. 1 to May 31, Sept. 24-30. No 

diversion or regulation above station.

Day

1 

2 

3 

4 

5

6 

7 

8 

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 

.2 

.4

.2 

.2 

.4 

.4 

.0

.8 

.0 

.8 

3.8 

3.6

3.3 

3.4 

3.3 

3.8 

12

14 

12 

10 

10 

16

17 

12 

8.9 

9.2 

9.2 

7.6

Nov.

8.1 

b7.6 

b7.2 

b7.0 

*b7.5

7.8 

7.3 

6.4 

6.4 

6.1

5.9 

b5.5

b7.0 

b7.5 

b7.0

b7.5 

b7;o 

8.9 

11 

9.4

9 2 

8.9 

12 

10 

10

16 

20 

24 

26 

19

Dec.

16 

14 

13 

14 

14

14 14 

13 

12 

12

30 

67 

96 

136 

115

84 

D65 

b55 

b50 

44

41 

37 

33 

30 

29

29 

26 

 b25 

b24 

b23 

b23

Jan.

 a 30

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Hay 

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

st ........................

ember .....................

ter year 1946-47 ..........

Feb.

, a35

Seoondfoot-days

213.5 

303.2 

1,198

20,049.1

930 

980 

899 

2,128 

6,747 

3,014 

673 

190.4 

152.6

17,428.7

Uar.

a25

*26 

27

29

37 

39 

38 

36

35 

34 

34 

35 

39 

40

Maximum

17 

26 

136

646

158 

430 

315 

41 

9.2 

8.9

430

Apr.

41 

41

41 

39 

37

34 

32 

33 

32 

32

30 

29 

31 

37 

46

50 

70 

121 

131 

134

119 

107 

93 

86 

82

86 

96 

115

145 

158

Hay

180 

290 

364 

370 

382

400 

430 

430 

430 

305

246 

207 

189 

169 

155

150 

150 

140 

140 

148

152 

147 

138 

138 

138

138 

145 

133 

115 

107 

121

Minimum

3.3 

5.5 

12

3.3

29 

107 

45 

10 

4.0 

3.4

3.3

June

113 

109 

96 

93 

86

115 

105 

203 

315 

222

172 

138 

119 

104 

95

93 

91 

79 

73 

68

63 

59 

54 

50 

48

49 

55 

53 

49 

45

Mean

6.89 

10.1 

38.6

54.9

30.0 

35-0 

29.0 

70 9 

218 

100 

21.7 

6.14 

5.09

47.7

July

41

40 

37 

34 

33

30 

29 

28 

26 

25

24 

23 

22 

22 

21

20 

20 

18 

18 

17

16 

16 

15 

15 

15

13 

12 

12 

11 

10 

10

Per 

square 

mile

0.313 

.459 

1.75

-

1.36 

1.59 

1.32 

3.2Z 

9. SI 

4.55 

.986 

.279 

.231

2.17

Ang.

9.2 

9.2 

8.9 

8.1 

7.8

.6 

.3 

.3 

.3 

.1

6.8 

6.8 

6.6 

6.4 

6.1

5.9 

5.6 

5.6 

5.2 

5.0

5.0

5.0 

5.0 

.8 

.6

.4 

.2 

.2 

.0 

.8 

.6

Sept.

4.0 

3.8 

3.8 

3.6 

3.4

3.4 

8.9 

5.9 

7.6 

8.1

5.6 

5.4 

4.9 

4.4 

4.2

6.1 

6.8 

6.4 

5.6 

5.2

4.8 

4.4 

4.0 

3.8 

a4.6

a5.5 

a5.0 

a4.5 

a4.5 

a4.5

Runoff

Inches

0.36 

.51 

2.0:

-

1.57 

1.66 

1.5? 

3. 60 

11.41 

5.10 

1.1* .32- 

.26

29.48

Ac re- feet

423 

601 

2,380

39,780

1,840 

1,940 

1,780 

4,220 

13,380 

5,980 

1,330 

378 

303

34,560

* Winter discharge measurement made on this day.

a No gage-height record! discharge computed on basis of records for Catherine Ci"eek're

b Stage-discharge relation affected by ice.
GRANDE RONDE RIVER BASIN 245

East Fork Wallowa River near Joseph, Oreg.

Location.- Staff gage, lat. 45°16', long. 117°13', in SW£ sec. 29, T. 3 S., R. 45 E.,

a quarter of a mile upstream from mouth, 1 mile upstream from Wallowa Lake, and 6 miles 

south of Joseph. Datum of gage is 4,517.69 feet above mean sea level, datum of 1929.

Drainage area.- 9.6 square miles.

Kecoras available.- July 1924 to September 1947.

Average discharge.- 23 years, 12.0 second-feet.

Extremes.- Maximum discharge during year not determined, stage reached at least 2.00 feet 

on May 30 (discharge, 91 second-feet); minimum discharge observed, 0.4 second-foot 

Feb. 9, Mar. 2, 9 (gage height, 0.52 foot).

1924-47: Maximum discharge, 300 second-feet July 25, 1937 (gage height, 3.63 feet, 

from floodmark), computed on basis of rating curve extended above 80 second-feet and 

unpublished records of storage in Wallowa Lake Reservoir; minimum observed, 0.1 second-foot (regulated) Dec. 7, 1929, Nov. 1, 6, 1935.

Remarks.- Records poor. Gage read twice daily. Wallowa Falls power plant cf Pacific 

Fower & Light Co, diverts water 1 mile above station.

Rating tables, water year 1946-47, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

fshifting-control method used Hay 31 to July~9)

Oct. 1 to May 3O May 31 to Sept. 30

.7 3.1 1.1 16 1.8 64 .8 2.9 1.1 11 1.5

.8 5.3 1.2 2O 1.9 77 .9 5.O 1.2 15 1.8

,9 7.9 1.4 31

Discharge, in second-feet, water year October 1946 to September 1947

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.

7.9

8.4

7.9

7.4

8.2

9.4

6.3

6.0

6.3

6 8

6.6

6.3

7.4

6 3

6.3

3.9

3.5

4.4

5.3

9.7

7.4

11

8.4

7.4

1O

10

9.4

6.6

7.6

6.3

6.3

Nov.

6.3

a6.0

a5 5

a5.0

4.6

4.4

4.1

3.5

5 3

e9.0

5.3

5 1

a5 O

a4.8

4.6

a4.6

4.4

6.0

2. 7

2.7

2.9

2.7

8.4

7.9

4.8

4.8

5.3

4.8

4.6

5.6

-

Dec.

5.1

3.3

3.5

3.1

3.5

4.6

5.3

4 6

4.1

5.3

4.8

5.1

5.1

5.6

7.1

5.3

b5.3

a5.O

b4.5

a4.0

3.9

3.5

3.1

3.5

4.4

3.3

2.4

a2.4

b2.2

a2.2

a2.0

Jan.

, a2.5

2.9

3 5

2.4

2.2

2.7

2.7

2.7

b2.5

b2.5

a2 O

al.5

al.5

Feb.

al.o

.9

1.1

1.4

2.5

1.9

2.4

1.7

1.4

.9

1.4

*4.4

3.3

3.9

3.1

2.2

1.7

2.7

3.1

5.3

3.5

4.8

2.2

1.7

1.4

bl.4

bl.4

al.4

_

-

Month

October. ...................................

November ......................... .........

December. ..................................

Calendar year 1946 ......................

January. ...................................

February ...................................

March. .....................................

April. .....................................

May........................................

June .......................................

July..... .............................. ...

August. ....................................

September ..................................

Water year 1946-47 ......................

Mar.

bl.4

*bl.4

1.4

l.O

1.0

1.3

3.1

2.4

1.7

2.4

2.2

2.2

2.2

2.4

3.5

t.4

3.9

4.8

1.9

1.9

1.7

2.0

3.1

1.7

2.0

1.0

1.1

1.1

1.4

2.0

1.3

Apr.

1.1

1.1

1.3

1.6

1.4

3.5

2.5

2.4

2.4

2.4

2.O

2.4

1.9

2.4

4.6

4.4

3.9

5.8

5.3

2.5

3.9

3.5

3.5

4.4

4.4

6 8

7.4

7.9

10

10

-

May

18

33

36

33

37

37

41

38

36

34

34

27

28

26

28

30

33

33

33

33

40

38

38

43

48

48

60

57

58

70

47

SeCOnd- Ua-rl mill. foot-days Uaxl«"«

224.7 11

150 7 9.0

127.1 7.1

5,906.2 85

76.6 3.5

64.1 5.3

62.9 4.8

116.7 10

1,195 70

1,202 57

631.4 31

200.8 12

97.4 9.0

4,149.4 7O

June

50

48

45

44

37

37

37

57

52

49

4O

36

32

33

37

40

42

44

44

44

38

37

34

35 37

37

38

35

32

31

'

Minimum

3.5

2.7

2.0

1.4

1.5

.9

1.0

1.1

18

31

9.4

3.3

2.0

.9

July

31

29

29

31

3O

28

27

25

26

25

24

23

21

21

23

22

22

2O

17

16

16

14

14

14

14

13

13

12

12

10

9.4

20 

31

54

Aug.

10

1

1

1

2

7.7

7.7

9.7

9.0

3.0

3.7

9.4

3.0

5.3

4.5

3.1

5.5

5.0

3.O

5.3

1.3

4.3

4.3

5.3

3.6

1.5

4.5

5.O

1.3

t.l

l.l

1.8

4.8

Mean

7.25

5. 02

4.10

16.2

2-47

2.29

2.03

3.89

38.5

4O.1

20.4

6.48

3.25

11.4

Sept.

3.3

3.1

3.1

2.2

2.5

2.2

9.0

4.3

2.7

3.3

2.5

2.2

2.9

2.9

2.2

2.9

4.1

2.9

3.1

3.1

6.6

5.5

2.5

2.5

2.0

3.3

3.9

2.4

2.Q

2.2

-

Runoff in 

acre-feet

446

299

252

11,720

152

127

125

231

2,370

2,380

1.25O

398

193

8,220

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Hurricane Creek near Joseph. 

b Stage-discharge relation affected by ice.

e Gage height not representative of average for day; discharge computed on basis of gage readings 

an<J record of power-plant operation.
246 GRANDE RONDE RIVER BASIN

Wallowa Falls power-plant tailrace near Joseph, Oreg.

Location.- Staff gage and sharp-crested weir, lat. 45°16', long. 117°13', in SE-j sec. 29,

mrs"., R. 45 E. , a quarter of a mile upstream from mouth and 6 miles fouth of

Joseph. Datum of gage is 4,624.70 feet above mean sea level, datum of 1939.

Records available.- August 1924 to September 1947. 

Average discharge.- 23 years, 7.72 second-feet.

Extremes.- Maximum daily discharge during year, 12 second-feet on many days; maximum gage 

height observed, 0.76 foot Sept. 11, 12; no flow many times when power plant was shut 

down.

1924-47: Maximum discharge, 17 second-feet Dec. 1, 8, 1930, Jan. 9, 10, 1931, 

Nov. 27 to Dec. 1, Dec. 4-6, 1944; no flow at times.

Remarks.- Records poor. Gage read hourly. Flow regulated for impulse wheel in powerhouse. Water diverted at dam on East Fork Wallowa River into conduit 1 mile above 

powerhouse and discharged into West Fork a quarter of a mile below station.

Rating tables, water year 1946-47 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used Sept. 1-13)

Oct. 1 to Sept. 13 Sept. 14 to Sept. 30 

0.42 5.10.31

6.7

9.0

11.4

14.0

4.6 

6.7 

9.4 

12.3

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

10

9.5

9.0

7.8

9.5

10

10

11

9.7

9.7

9.7

9.5

9.0

9.7

10

11

11

10

11

10

11

1]

1L

12

11

11

10

11

11

11

11

Nov.

11

10

11

12

12

12

12

12

11

7.1

11

10

11

11

11

10

11

12

12

12

12

12

11

11

12

12

11

11

11

11

-

Dec.

11

12

10

12

12

11

10

11

11

11

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

11

Jan.

11

10

10

1111

10

9.5

9.7

9.5

9.2

9.7

10

9.7

10

10

9.5

9.7

11

9.7

8.8

8.5

9.5

9.2

9.5

10

&.7

10

10

10

1111

Feb.

9.2

10

9.5

10

9.7

9.7

9.2

9.5

10

9.7

9.5

9.2

9.2

9.2

9.5

10

9.7

9.5

9.5

9.2

9.5

9.5

9.5

9.7

10

9.5

9.7

9.5

_

-

Month

October ................... ................

November .................. ...... .........

December .............. ....................

Calendar year 1946 ......................

January .................................. .

February ..................................

March.. .................... ...............

April ............ ........ ................

May. .......................................

June ...................... ... ...........

July. ......................................

August ................ ... . . ............

September ................. . . ...........

Water year 1946-47 ... . . ............

Mar.

9.5

10

9.2

9.5

9.2

9.2

9.5

9.0

9.5

9.0

9.5

9.0

9.0

8.8

9.0

9.7

10

9.2

9.2

9.5

9.7

10

9.5

9.7

9.5

10

9.5

9.5

9.2

9.2

9.7

Apr.

10

10

10

10

10

8.9

9.5

10

9.5

9.7

9.7

9.7

10

9.7

9.7

10

10

10

10

10

10

10

10

10

10

9.7

9.5

10

11

10-

Seoondfoot-days

319 . 1

335.1

352

3,306.7

307.4

292.0

287 . 4

278 . 6

312 . 6

342.0

3,686.7

May

10

10

10

10

10

10

10

10

10

9.5

8.5

11

11

11

10

10

8.8

6.3

8.8

9 2

8.8

8.5

9.0

7.6

5.2

9.2

8.8

9.2

9.2

8.1

9.7

Maximum

12

12

12

12

11

10

10

11

11

11

11

11 

12

12

June

6.9

9.0

9.0

9.2

9.0

9.5

9.5

8.5

9.7

9.5

9.5

10

9.7

9.2

7.6

10

9.5

9.7

9.5

8.5

9.7

8.5

10

9.2

9.0

10

9.7

10

8.5

11

Minimum

8

7.1

10

4.7

8.5

9.2

8 9

5.2

6 , 9

8 . 8

10

5.2

July

9.5

11

11

8.8

8.5

9.2

10

10

9.2

10

9.2 10'

10

10

9.0

9.5

9.5

9.2

8.5

8 8

9.2

10

9.5

9.7

9.5

9.0

9.0

9.2

10

10

10

Aug.

9.7

9.7

10

10

10

10

10

10

9.7

9.5

9.5

10

11

10

10

10

8 8

11

11

11

11

11

10

9.0

10

10

10

11

10

10

9.7

Mean

10.3

11.2

11.4

9.06

9.92

9 57

9.42

9.27

9.29

9.55

10.1 

11.4

10.1

Sept.

11

11

11

11

10

10

10

10

10

11

1111

11

12

d!2

d!2

d!2

d!2

12

12

12

12

12

12

12

12

12

12

12

12

Runoff in 

acre-feet

633

665

698

6,560

610

531

579

588

570

553

620

678

7,310

d Doubtful gage-height record; discharge computed on basis of 1 discharge measurement and 

polation.
GRANDE RONDE RIVER BASIN 247 

Hurricane Creek near Joseph, Oreg.

Location..- Water-stage recorder, lat. 45°20', long. 117° 18', in NEi sec. 3, T. 3 S., 

H. 44 E., upstream from intake of Moonshine ditch and 3-j miles southwest of Joseph.

Drainage area.- 31 square miles.

Records available.- April to September 1915, April 1924 to September 1947.

Average discharge.- 20 years (1927-47), 66.9 second-feet.

Extremes.- Maximum discharge during year, 534 second-feet May 7 (gage height, 2.82 

feet ]; minimum, 18 second-feet Feb. 26.

1915, 1924-47: Maximum discharge, 774 second-feet July 7, 1943 (gage height, 

3.13 feet); minimum,3.4 second-feet Feb. 10, 1938, Feb. 6, 1946 (ice jams upstream).

Remarks.- Records good Apr. 15 to Sept. 30, fair Oct. 1 to Apr. 14 except those for 

periods of no gage-height record, which are poor. No diversion or regulation above 

station.

Rating tables water year 1946-47 (gage height, In feet, 

and discharge In second-feet)

1.3

1.4

Oct. 22 to Dec.

1.5

1.6 

1.8

Dec. 20 to Sept. 30

1.1

1.2

1.3

1.4 46

1.5 

1.7 

1.9 

2.1

123

170

2.3 

2.5 

2.7

235

335

450

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a30

a33

a32

a35

a35

a35

a35

a35

a33

a33

a33

a33

a32

a30

a30

a38

a32

a30

a30

a35

a40

49

39

43

69

60

49

43

42

41

38

Nov.

38

36

35

36

35

35

34

33

33

33

33

32

32

32

32

32

34

41

45

39

37

38

43

39

39

37

38

37

36

34

-

Dec.

34

33

a32

a35

a4O

a40

a39

a38

a37

a35

a45

a60

a75

a90

alOO

a80

a65

a55

a50

45

44

42

40

39

38

37

36

32

32

30

30

Jan.

31

29

30

31

33

32

31

30

29

29

29

29

29

26

26

28

28

27

26

26

26

26

27

27

26

25

22

23

25

25

25

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January ........ .............

February ......................

March .........................

April .............. ..........

May ................ ..........

June ............... ..........

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

25

25

25

25

25

24

24

23

23

23

a24

a24

25

25

24

24

23

23

23

22

23

23

23

23

23

22

22

23

_

_

-

Secondfoot-days

1,162

1,078

1,428

32,621

856

661

844

1,594

8 , 746

7,384

4 , 698

1,724

1,031

31,206

Mar.

22

23

22

22

22

22

22

22

22

22

22

21

21

22

23

26

29

29

31

32

33

35

33

33

33

32

32

33

34

35

34

Maximum

69

45

100

454

33

25

35

107

420

379

221

51

420

Apr.

34

33

33

33

33

32

a30

a30

a30

a30

830

a30

a40

a50

60

66

72

66

65

63

62

59

58

56

59

66

81

94

107

92

-

May

116

266

330

330

330

368

420

420

357

262

218

197

191

188

197

207

210

210

232

253

266

253

244

280

324

357

374

352

318

330

346

Minimum

28

32

30

12

~ 22

22

21

30

116

152

86

37

29

21

June

308

291

258

232

210

218

228

379

340

244

204

200

204

204

232

330

346

340

330

258

194

191

210

240

248

244

218

176

155

152

Mean

37.5

35.9

46.1

89.4

?7 c I . Cb

23.6

27.2

53.1

282

246

152

55.6

34.4

85.5

July

168

197

207

?00 .'07

i!4

221

210

204

194

179

173

176

179

168

150

141

145

138

123

121

119

112

105

99

94

95

95

91

87

86

Per 

square 

mile

1.21

1.16

1.49

2.88

.890

.761

. 877

1.71

9.10

7.94

4.90

1.79

1.11

2.76

Aug.

83

79

81

9

6

3

2

0

'7

63

60

59

56

55

54

52

50

49

49

49

47

46

44

42

40

39

39

38

38

38

37

Sept.

36

35

37

35

35

34

51

39

39

38

36

34

33

33

31

34

36

37

35

33

33

31

30

30

30

34

32

30

31

29

-

Runoff

Inches Ac re- feet

1.39 2,300

1.29 2,140

1.71 2,830

39.14 64,710.

1.03 1,700

.73 1,310

1.01 1,670

1.91 3,160

10.49 17,350

8.83 14,650

5.64 9,320

2.07 3,420

1.24 2,040

37.43 61,890

a No gage-height record; discharge computed on basis of records for Bear Creek 

Lostlne River near Lostlne, and Catherine Creek near Union.

near Wallowa,
248 GRANDE fi >NDE RIVER BASIN

Lostine River near Lostine, Oreg.

Location.- Water-stage recorder, lat. 45°26', long. 117°26', in NWj sec. 34, T. IS., R. 

43 K. , 3j miles south of Lostine and 10 miles upstream from mouth.

Records available.- August 1912 to March 1914, April to September 1915, July 1925 to 

September 1947.

Average discharge.- 20 years (1912-13, 1928-47), 180 second-feet.

Extremes.- Maximum discharge during year, 1,500 second-feet May 7 (gage height, 6.16 

feet); minimum, 36 second-feet Sept. 1, 2, 4, 5 (gage height, 0.85 foot).

1912-14, 1915, 1925-47: Maximum discharge, 2,540 second-feet May 27, 1913; minimum 

recorded, 10 second-feet Nov. 28-30, 1936.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No large diversions above station. Flow slightly regulated by Minam 

Lake Reservoir.

Rating table, water year 1946-47, except period of Ice effect 

(gage height, in feet, and discharge, in second-feet)

0.8 

1.0

1.2 

1.5

135

201

303

450

4.0 

4.8 

5.8

6SO

960

1,360

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

' a55

78

a 75

a 70

a65

a 70

a 75

a 70

67

a 75

alOO

a80

87

183

201

141

117

109

102

92

Nov.

90

84

82

81

78

77

76

73

70

70

69

63

64

63

59

56

62

60

82

74

73

75

95

85

85

88

94

94

89

83

Dec.

82

78

77

a 80

a82

a 82

a 80

a75

a70

*70

106

142

203

258

290

205

b!63

150

141

128

120

114

107

104

102

101

100

b87

85

b80

b75

Jan.

> b60

57

61

65

68

68

b59

b56

b60

b56

b56

Feb.

62

74

64

62

61

60

60

56

58

61

61

78

82

73

70

70

69

67

66

63

64

62

62

62

61

62

b57

58

_

-

Month

October ....................................

November. ........................ ........

December. .................................

Calendar year 1946 .....................

January ........ ........................ .

February ........................ .........

March ......................................

April ......................................

May........................................

June .......................................

July. ......................... .........

August ................................. ...

September. .................................

Water year 1946-47 ......... ............

Mar.

56

60

58

56

55

53

54

53

53

61

59

54

53

56

59

69

83

94

104

108

116

127

124

118

113

112

103

104

108

114

117

Apr.

114

112

108

104

102

97

a94

90

89

88

84

85

103

147

199

230

268

264

254

248

228

207

199

192

196

224

275

355

428

418

-

Secondfoot-days

2 517

2^294

3,637

88, 051

1, 866

1,805

2 554

5^602

26,424

19,011

1^999

1,444

79,043

May

452

872

1,060

1,120

1,120

1,190

1,320

1,330

1,040

748

580

496

475

475

505

565

592

601

474

765

836

832

776

888

984

1,080

1,190

1,160

952

896

1,050

Maximum

201

95

290

1,300

82

127

428

1,330

952

535

114

63

1,330

June

912 35 -:

709

622

547

409

595

952

896

656

514

455

475

490

556

776

928

936

880

692

505

462

502

571

619

660

646

465

380

350

-

Minimum

5

7C

5f5"

8^

45

35C

11*

33"

3"

July

390

472

535

505

496

517

526

511

481

445

398

368

370

365

355

305

277

273

262

240

224

218

201

181

169

148

142

141

132

125

118

Aug.

114

108

104

106

97

90

85

83

79

74

70

67

64

62

60

57

54

52

51

49

49

48

47

45

42

4242'

40

39

39

40

Mean

81.2

> 76.5

) 117

241

60.2

64.5

82.4

187

852

634

319

64.5

48.1

217

Sept.

38

37

40

39

37

38

63

59

55

61

54

49

47

46

43

50

53

55

55

49

49

46

43

42

44

60

52

48

47

45

-

Runoff in 

acre feet

4,990

4,550

7,210

174,600

3,700

3,583

5,070

11,110

52,410

37,710

19,620

3,960

2,860

156,800

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis 

and Bear Creek near Wallowa.

b Stage-discharge relation affected by ice.

records for Hurricane Creek near Joseph
GRANDE RONDE RIVER BASIN 249

Bear Creek near Wallowa, Oreg.

Location.- Water-stage recorder, lat. 45 0 32', long. 117°33', in NE£ sec. 34, T. IN., R. 

4<i E., at bridge 3 miles southwest of Wallowa.

Records available.- April to September 1915, November 1931 to September 19'47. April 1924 

to November 1931 (incomplete) at site 1 mile upstream above intakes qf two irrigation 

ditches with a combined capacity of about 3 second-feet.

Average discharge.- 18 years (1929-47), 104 second-feet.

Extremes.- Maximum discharge during year, 992 second-feet May 7 (gage height, 2.88 feet), 

I'rom rating curve extended above 490 second-feet; minimum recorded, 8.8 second-feet 

Sept. 4, 5, but may have been less during period of no gage-height record.

1915, 1924-47: Maximum discharge, 1,620 second-feet Apr. 22, 1936 (gag's height, 3.82 

feet, from floodmarks), from rating curve extended above 950 second-feet; minimum, 3 

second-feet Jan. 20,. Feb. 1, 1937.

Remarks.- Records fair except those for Dec. 29 to Feb. 2, which are poor. Stall diversions above station for irrigation.

Rating table, water year 1946-47, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Nov. 12 to Dec. 14,

July 12 to Sept. 30)

0.6 8.8 1.1 48 1.9 270

.7 13 1.2 64 2.1 385

.8 19 1.3 83 2.4 580

.9 26 1.5 130 2.7 S30

1.0 35 1.7 189

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge, in second-feet, water year October 1946 to September 1947

Oct.

20

20

20

20

20

20

20

20

SO

18

18

19

18

18

18

17

17

17

17

33

56

87

85

87

174

193

144

115

98

87

74

Nov.

70

59

54

56

58

58

56

53

50

48

45

38

40

39

38

35

38

45

59

56

54

58

75

83

81

87

96

105

110

101

-

Dec.

94

83

75

74

68

62

58

56

54

*50

96

200

314

385

433

355

270

223

186

155

138

120

105

98

92

90

f81

66

b60

b55

bSO

Jan.

> a45

Feb.

a45

aSO

45

44

43

40

39

38

38

38

39

59

90

92

92

92

87

83

77

72

68

64

61

59

59

54

53

54

-

-

Month

October ............ i .......................

November. ........................ .........

December ...................................

Calendar year 1946 ......................

January. ...................................

February. ..................................

March ......................................

April ......................................

May.........................................

June .......................................

July............. ..........................

August. ........................ ...'. ........

September. .................................

Water year 1946-47 ......................

Mar.

51

50

48

45

42

39

38

38

38

45

47

44

43

44

53

75

110

136

150

152

158

167

161

147

136

122

112

110

122

133

130

Apr.

128

122

118

110

103

96

87

87

85

81

77

77

101

161

216

240

270

270

276

270

244

223

200

186

186

216

266

331

367

349

-

May

373

604

794

776

692

692

749

708

552

421

373

349

343

337

343

367

367

373

403

439

464

452

433

445

497

552

531

478

421

415

445

roomys I* 

1,590 193

1,845 110

4,246 433

53,216 740

1,395

1,675 92

2,786 167

5,543 367

15,188 794

10,516 588

2,945 216

466 23

427.2 18

48,622.2 794

June

421

403

373

391

355

385

397

531

588

490

403

355

343

325

343

415

433

409

391

314

236

223

231

253

253

281

320

253

212

189

-

Minimum

17

35

50

15

38

38

77

337

189

24

10

9.2

9.2

July

193

212

216

193

180

177

170

158

144

130

112

103

98

94

83

74

66

61

58

51

47

44

39

36

35

33

31

29

28

26

24

Aug.

23

23

21

20

20

19

18

18

17

17

17

17

16

15

14

14

14

13

13

12

12

13

13

12

12

11

11

10

10

11

10

Sept.

10

9.6

10

9.2

9.2

9.2

IB

14

16

17

15

15

14

13

13

16

17

17

16

15

15

15

15

14

14

17

15

17

17

15

!! = Runoff in Mean acre-feet

51.3 3,150

61.5 3,660

137 8,420

146 105,500

45 2,770

59.8 3,320

89.9 5,530

185 10,990

490 30,120

351 20,860

95.0 5,840

15.0 924

14.2 847

133 96,430

* Winter discharge measurement made on this day.

a No gage-height record: discharge computed on basis of records for Hurricane Creek near Joseph, 

Lostlne River near Lostlne, and Catherine Creek near Union, 

b Stage-discharge relation affected by ice. 

f Computed on basis of partly estimated gage height.

881401 0-50-17
250 ASOTIN CREEK BASIN

Asotin Creek near Asotin, Wash.

Location.- Staff gage, lat. 46°20', long. 117°12<, In sec. 20, T. 10 N., R. 45 E., half a 

mile upstream from Washington Water Power Co.'s diversion for water supply and Irrigation, 4 miles upstream from George Creek, and 8 miles west of Asotin.

Drainage area.- 171 square miles.

Records available.- August 1928 to September 1947. March 1904 to November 1?06 and August 

1910 to October 1911 at practically same site.

Average discharge.- 19 years (1928-47), 58.6 second-feet.

Extremes.- Maximum discharge observed during year, 562 second-feet Dec. 15 (gage height, 

a.70 feet); minimum observed, 24 second-feet Aug. 26-28.

1904-6, 1910-11, 1928-47: Maximum discharge observed, 1,180 second-feet Apr. 15, 

1904 (gage height, 4.3 feet, datum then In use); minimum observed, 16-second-feet Jan. 

5, 1937.

Remarks.- Records good except those for periods of Ice effect or shifting control, which 

are fair. Gage read twice dally. Large part of low flow diverted for irrigation.

Cooperation.- Gage-height record furnished by Washington Water Power Co.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

fi

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Oct.

27

30

29

29

30

29

29

28

28

28

28

28

2S

2S

28

28

30

30

30

33

43

43

41

38

39

47

40

38

37

37

35

Nov.

37

34

33

33

34

35

35

35

35

35

35

34

33

33

33

32

33

47

118

109

78

71

74

92

80

77

77

90

90

80

-

Dec.

76

67

*65

65

63

61

61

58

56

55

62

160

316

350

543

418

2S4

197

160

138

128

118

109

95

89

89

86

86

78

58

56

Jan.

54

b55

b55

b55

b55

b60

b60

58

56

56

54

54

54

51

b50

b50

b50

49

49

48

*48

47

57

86

62

87

68

60

61

63

58

Feb.

58

224

84

84

84

84

86

87

87

86

86

333

197

172

160

149

128

118

109

100

-100

90

86

83

84

78

74

77

-

_

-

Month

December. ...................................

Calendar year 1946 ......................

March........ ..............................

May

September. .................................

Water year 1946-47 ......................

Mar.

71

68

67

67

63

58

57

60

57

63

65

63

61

62

62

71

78

97

100

109

118

118

128

109

100

98

94

86

86

94

95

Apr.

97

98

97

97

95

89

84

83

83

81

78

77

78

86

109

109

118

149

149

160

149

138

128

118

118

118

128

138

160

160

-

Secondfoot-days

4,247

28,321

2 525

3 372

3 987

1 799

925

26,406

May

149

184

224

224

210

2 ID210

224

210

160

149

138

128

118

109

100

98

95

92

94

89

86

84

81

80

78

73

73

70

70

77

Maximum

543

543

40

543

June

73

73

71

78

71

76

71

SO

76

73

68

65

65

62

60

57

57

55

52

52

50

48

48

46

46

47

47

46

44

42

Minimum

55

27

26

25

July

40

40

39

38

38

38

37

36

36

36

36

36

34

34

36

34

34

34

32

32

32

32

32

32

32

32

32

32

31

30

30

Aug.

30

30

30

30

3O

29

29

28

2S

29

29

29

29

28

28

27

27

27

26

26

25

25

25

26

25

25

25

25

26

26

26

Hear

3£ 8

137

77.6

30.8

7E.3

Sept.

26

26

26

26

26

26

30

31

32

36

32

32

29

28

30

39

40

38

35

32

29

31

29

29

36

28

Runoff in 

acre-feet

8,420

56,180

1,830

52,380

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. - Shifting-control method used Oct. 1 to Feb. 1, July 28 to Sept. 7, Sept.
CLEARWATER RIVER BASIN 251

Selway River above Meadow Creek, near Lowell, Idaho

Location.- Water-stage recorder, lat. 46°03', long. 115 0 18', in sec. 11, T. 31 N., R. 9 E., 

a quarter of a mile upstream from Meadow Creek, l| miles upstream from Selway Falls, 13 

miles upstream from gaging station on Selway River near Lowell, and 16.5 miles southeast 

of Lowell post office.

Drainage area.- 1,550 square miles.

Records available.- October 1944 to September 1947.

Extremes.- Maximum discharge luring year, 32,600 second-feet May 8 (gage height, 18,62 

reet, from floodmark), gage height and discharge supersede those figures published in 

Water-Supply Paper 1080; minimum, 481 second-feet Sept. 7 (gage height, 2.58 feet). 

1944-47: Maximum discharge, that of May 8, 1947; minimum daily, 175 second-feet 

Dec. 12, 1944.

Remarks.- Records excellent except those for periods of ice 'effect or no gage-height 

record, which are good. Small diversions to Bitterroot River Basin from headwaters 

are reported and are shown on maps in T. 32 N., R. 16 E.

Ratine tables, water year 1946-47, except periods of Ice effe 

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used July 9 to Aug. 23)

Oct. 1 to May 2 May 8 to Sept. 30

2.6 

3.0 

3.5

4.0

625

855

1,200

1.R40

6.0 

7.0

2,160

2.750

4,100

5,650

8.0

9.0

10.0

12.4

7,390

9,260

11,300

16,900

.

3.0 

3,5 

4.0

490

700

1,000

1,360

4.5 

5.0 

6.0 

7.0

1,770 

2,250 

3,47.0 

5,OOO

9.0

11.0

14.0

17.3

8.7OO 

13,300 

20,800 

29,200

Discharge, in second-fset, water year October 1946 tc September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

642

1,270

1,450

1,260

1,170

1,080

1,010

959

933

907

862

831

807

789

771

747

724

708

691

765

1,280

1,560

2,120

1,750

4,670

7,190

4,520

3,670

3,090

2,760

2,460

Nov.

2,340

2,140

1,780

1,900

1,890

1,830

1,790

1,690

1,600

1,560

1,520

1,410

1,260

1,350

1,400

1,160

1,240

1,510

1,980

1,920

1,670

1,640

2,040

2,220

2,030

2,070

2,090

2,330

2,410

2,290

-

Dec.

2,080

2,000

1,860

1,830

1,820

1,790

1,720

* 1,640

1,650

1,640

4,280

6,360

7,210

9,680

10,400

7,610

5,740

4,730

4,260

3,640

3,180

2,880

2,630

2,390

2,200

2,190

2,140

1,940

1,570

1,700

1,600

Jan.

1,700

1,600

1,400

1,300

1,400

1,700

1,700

1,500

1,350

1,400

1,450

1,340

1,290

1,150

1,100

1,150

1,150

1,150

1,150

1,150

1,150

1,180

1,460

1,820

1,780

1,830

1,560

1,270

1,200

»1,250

1,230

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September ........ .........

Water year 1946-47 ..........

Feb.

1,200

1,250

1,300

1,260

1,240

1,230

1,200

1,170

1,100

1,200

1,400

1,480

2,150

2,230

2,100

2,120

2,260

2,280

2,200

2,060

1,970

1,880

1,920

2,050

2,060

1,900

1,750

1,770

_

-

Secondfoot-days

53,446

54 , 060

106,360

1,250,302

42,860

47,730

77,350

174,680

533,100

249,710

78,700

23,435

18,659

1,460,090

Mar.

1,670

1,620

1,590

1,540

1,450

1,360

1,310

1,310

1,270

1,360

1,540

1,600

1,620

1,690

1,890

2,150

2,530

2,980

3,430

»3,820

4,030

4,340

4,300

3,900

3,500

3,270

3,020

2,910

3,050

3,440

3,860

Maximum

7,190

2,410

10,400

14,900

1,830

2,280

4,340

14,100

2 9 000

12^00

4,620

1 *886 15O

29,OOO

Apr.

3,790

3,710

3,690

3,690

3,500

3,300

3,080

2,960

2,920

2,870

2,780

2,670

2,870

3,850

5,650

6,570

7,300

7,660

7,370

7,730

7,260

6,760

6,260

5,920

6,090

6,890

8,540

11,200

13,700

14,100

May

12,800

16,800

323,000

a25,000

326,000

a26,000

a27,000

a29,000

328, OOO

21,200

16,500

14,100

13,500

12,900

12,700

13,300

13,700

13,500

13,500

14,100

15,000

14,600

13,600

14,000

15,400

16,600

17,800

16,000

13,000

11,800

12,700

Minimum

642

1,160

1,570

498

1,100

1,100

1,270

2,670

11,800

4,500

1,040

555

490

490

June

12,100

11,600

11,100

10,200

9,450

10,200

9,840

9,580

12,400

10,600

9,050

8,340

8,460

8,300

7,940

8,460

10,000

8,900

8,400

6,920

6,050

5,700

5,610

5,630

5,700

5,730

7,800

6,050

5,100

4,500

Mean

1,724

1,802

3,431

3,425

1,383

1,705

2,495

5,823

17,200

8,324

2,539

756

622

4,000

July

,300

,410

,620

,570

,110

3,920

3,900

3,820

3,640

3,300

3,110

2,870

2,640

2,540

2,390

2,280

2,140

1,980

1,890

1,800

1,690

1,610

1,500

1,420

1,350

1,300

1,220

1,160

1,110

1,070

1,040

Per 

square 

mile

1.11

1.16

2.21

2.21

.892

1.10

1.61

3.76

11.1

5.37

1.64

.488

.401

2.58

Aug_.

1,040

1,C

I

1

20

60

40

898

856

£

-

7

20

78

54

730

718

7

7

7

24

48

18

667

640

6

6

5

18

01

.80

585

684

9

1,1

a

79

50

68

736

678

6

6

5

5

34

06

85

65

555

Sept.

540

525

520

530

510

490

505

634

662

718

694

634

580

530

515

618

868

886

796

718

662

645

640

612

580

570

580

575

580

742

Runoff

Inches

1.28

1.30

2.55

29.98

1.03

1.15

1.86

4.19

12.79

5.99

1.89

.56

.45

35.04

Acre-feet

106,000

107,200

211,000

2,480,000

85,010

94,670

153,400

346,500

1,057,000

495,300

156,100

46,480

37,010

2,896,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station near Lowell. 

Note.- Stage-discharge relation affected by Ice Dec. 30 to Jan. 11, Jan. 14-21, Jan. 29 to Feb. 3, 

Feb. 9-11.
252 CLEARWATER RIVER BASIN

Selway River near Lowell, Idaho

Location.- Water-stage recorder, lat. 46°05', long. 115 0 31', in sec. 85, T. 33 N., R. 

'/ E. , a quarter of a mile upstream from O'Hara Creek and 7 miles upstream from Lowell 

post office.

Drainage area.- 1,910 square miles.

Records available.- April 1911 to September 1912 (gage heights or fragmentary discharge 

records only), October 1939 to September 1947.

Average discharge.- 18 years (1929-47), 3,321 second-feet.

Extremes.- Maximum discharge during year, 37,000 second-feet May 8 (gage height, 13.71 

reet); minimum, 613 second-feet Sept. 7 (gage height, 2.83 feet).

1929-47: Maximum discharge, that of May 8, 1947; minimum, probably less than 100 

second-feet Jan. 8, 1937, during period of ice effect.

Remarks.- Records excellent. No diversion.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

817

1,760

2,010

1,600

1,500

1,350

1,260

1,210

1,170

1,140

1,080

1,040

1,020

992

972

934

907

889

861

954

1,740

2,210

3,230

2,480

5,790

9,550

5,610

4,440

3,750

3,360

2,990

Nov.

2,860

2,600

2,150

2,250

2,280

2,190

2,160

2,010

1,900

1,850

1,800

1,670

1,490

1,540

1,640

1^410

1,420

1,730

2,340

2,360

2,010

1,950

2,420

2,740

2,490

2,580

2,620

2,960

3,040

2,870

-

Dec.

2,580

2,440

2,280

2,250

2,250

2,?10

2,110

2,020

?,020

2,020

5,420

8,750

9,650

IS, 000

13,800

10,600

7,440

6,000

5,440

4,650

4,060

3,690

3,340

3,040

2,810

2,790

2,790

2,440

2,010

2,090

1,980

Jan.

2,160

1,880

1,450

1,520

1,730

2,040

2,070

1,800

1,580

1 ,640

1 ,72O

1,550

1,490

1,420

1,260

1,320

1,380

1,340

1,370

1,360

1,360

1,360

1,680

2,110

2,180

2,280

2,110

1,640

1,550

1,670

1,560

Month

October .......................

November ......................

December ......................

Calendar year 194S .........

January .......................

February ......................

March .........................

April .........................

way If av ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

1,510

1,670

1,760

1,580

1,570

1,570

1,540

1,450

1,320

1,410

1,680

1,810

2,710

3,010

2,870

2,910

3,100

3,110

3,010

2,790

2,680

2,570

2,620

2,780

2,790

2,570

2,320

2,340

_

_

-

Secondfoot-days

68,626

65,330

137,970

1,522,661

51,590

63,050

95,660

210,990

642,400

313,080

96,820

29,043

23,452

1,798,011

Mar.

2,180

2,120

2,050

1,980

1,840

1,720

1,640

1,620

1,580

1,730

1,950

2,080

2,090

2,190

2,460

2,780

3,230

3,750

4,270

4, .670

4,890

5,260

5,230

4,740

4,220

3,960

3,620

3,500

3,650

4,100

4,560

Maximum

9,550

3,040

13,800

17,300

2,280

3,110

5,260

16,700

34,600

15,100

5,730

1,430

1,090

34,600

Apr.

4,500

4,390

4,390

4,390

4,140

3,940

3,650

3,540

3,490

3,430

3,310

3,180

3,490

4,610

6,730

7,880

8,840

9,420

9,000

9,480

8,840

8,200

7,620

7,170

7,420

8,440

10,500

13,900

16,400

16,700

-

May

15,400

18,900

27,400

29,800

30,700

30,700

32,400

34,600

33,200

25,300

19,800

17,400

16,700

16,100

15,800

16,400

16,800

16,600

16,600

17,200

18,200

17,900

16,700

17,000

18,300

19,700

20,900

19,400

16,300

14,800

15,400

Minimum

817

1,410

1,980

674

1,260

1,320

1,580

3,180

14,800

5,780

1,240

707

628

628

June

15,100

14,500

13,800

12,800

11,800

12,600

12,300

11,900

15,000

13,500

11,600

10,700

10,700

10,600

10,000

10,600

12,500

11,200

10,500

8,720

7,840

7,140

7,000

6,980

7,000

7,000

9,720

7,850

6,550

5,780

-

Mean

2,214

2,178

4,451

4,172

1,664

2 252

3 1 086

7,033

20,720

10,440

3,123

937

782

4,926

July

5,460

5,540

5,730

5,680

5,160

4,910

4,850

4,720

4,540

4,180

3,920

3,580

3,270

3,110

2,920

2,740

2,550

2,370

2,240

2,110

1,980

1,900

1,800

1,690

1,610

1,550

1,460

1,380

1,340

1,290

1,240

Per

square 

mile

1.16

1.14

2.33

2.18

.871

1.18

1.62

3.68

10.8

5.47

1.64

.491

.409

2.58

Aug.

1,240

1,2

1.1

1.1

20

60

40

1,090

1,040

l.C

s

9

00

63

25

916

898

8

9°8

98

34

98

843

817

7

7

7

91

65

48

740

817

1,1

1,4

1,0

60

30

80

934

861

8

7

7

7

08

65

40

15

707

Sept.

691

666

666

674

651

628

651

808

843

925

889

808

740

674

651

748

1,070

1,090

992

898

834

800

782

748

723

715

732

723

707

925

-

Runoff

Inches

1.34

1.27

2.69

27.65

1.00

1.23

1.86

4.11

12.51

6.10

1.89

.57

.46

3S.03

Acre-feet

136,100

129,600

273,700

3,020,000

102,300

125,100

189,700

418,500

1,274,000

621,000

192,000

57,610

46,520

3,566,000
CLEARWATER RIVER BASIN 253

Clearwater River at Kamiah, Idaho

Location.- Water-stage recorder, lat. 46°14', long. 116°01', in sec. 1, T. 33 N., R. 3 E., 

a quarter of a mile downstream from highway bridge at Kamiah, three-quarters of a mile 

downstream from Lawyer Creek, and 6 miles downstream from South Fork. Datum of gage 

is 1,162.52 feet above mean sea level, datum of 1929, supplementary adjustment of 1947.

Drainage area.- 4,850 square miles.

Records available.- August 1910 to September 1947.

Average discharge.- 37 years, 7,888 second-feet.

Extremes.- Maximum discharge during year, 69,900 second-feet May 8 (gage height, 16.07 

reet) ; minimum, 1,290 second-feet Sept. 6 (gage height, 3.22 feet).

1910-47: Maximum discharge observed, 81,400 second-feet June 10, 1933 (gage height, 

16.53 feet, former site); minimum, probably less than 200 second-feet Jan. 8, 1937, 

during oeriod of ice effect.

Remarks . - Records excellent above 4,000 second-feet and good below. 

lation at low flow caused by power plant on South Fork.

Some diurnal reguRating table, water year 1946-47 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used May 1 to July 10)

3.2 1,260 7.0 10,000 12.0 35,300 

3.9 2,220 8.0 13,900 14.0 51,300 

4.5 3,270 9.0 18,300 15.7 66,300 

5.0 4,310 10.0 23,000 

6.0 6,850 11.0 28,600

Discharge, in second-feet, water year October 1946 to September 1947

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,570 

2,130 

3,590 

2,870 

2,620

2,460 

2,250 

2,130 

2,060 

2,020

1,980 

1,890 

1,850 

1,820 

1,810

1,770 

1,730 

1,700 

1,680 

1,690

2,570 

3,780 

5,450 

4,910 

6,720

19,800 

11 , 400 

8,480 

7,050 

6,210 

5,600

Nov.

5,280 

5,010 

4,310 

4,030 

4,270

4,200 

4,200 

4,050 

3,780 

3,690

3,650 

3,490 

3,080 

2,910 

3,230

3,120 

2,710 

3,310 

4,680 

5,580

4,660 

4,270 

5,230 

6,740 

5,940

6,050 

6,020 

6,510 

6,820 

6,510

Dec.

5,840 

5,420 

5,150 

4,940 

5,030

4,910 

4,700 

4,540 

4,590 

4,540

8,540 

20,500 

21,600 

26,700 

30,400

26,100 

18,300 

14,200 

12,700 

11,200

9,590 

8,700 

7,920 

7,140 

6,570

6,350 

6,790 

5,860 

5,010 

4,770 

4,770

Jan.

4,960 

4,700 

3,530 

3,190 

3,570

4,330 

4,750 

4,360 

3,880 

3,880

4,110 

3,900 

3,630 

3,510 

2,990

3,060 

3,290 

3,120 

3,190 

3,250

3,210 

3,250 

3,920 

6,020 

6,210

6,510 

5,790 

4,720 

4,090 

4 , 200 ' 

3,980

Feb.

3,840 

4,220 

4,560 

3,960 

3,880

3,860 

3,730 

3,510 

3,230 

3,180

3,590 

4,220 

7,370 

7,340 

7,080

7,230 

7,340 

7,280 

7,050 

6,570

6,290 

6,160 

6,160 

6,490 

6,490

6,050 

5,450 

5,300

Month SecondMontl1 foot-days

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Ha

ber ....................... 3

mber ...................... 2

lendar year 1946 

&Ty

3.1'

1

TiSiTy ]

1 ..... ...... - 4

1,2

f

st ........................

ember .....................

23,590 

37,330 

13,370

16,140

27,100 

51,430 

24,420 

79,610 

11,300 

01,500 

86,090 

60,040 

51,340

ter year!946-47 .. ....... 3,667,120

Mar.

5,250 

5,060 

5,010 

4,910 

4,610

4,270 

4,110 

4,050 

4,050 

4,160

4,790 

5,130 

5,080 

5,230 

5,600

6,180 

6,940 

7,880 

8,890 

9,760

10,400 

11,700 

12,500 

11,600 

10,300

9,760 

9,060 

8,610 

8,700 

9,630 

11,200

Maximum

19,800 

6,820 

30,400

35,200

6,510 

7,370 

12 , 500 

35,000 

66,200 

28,600 

10,800 

2,620 

2,570

66,200

Apr.

11,400 

11,200 

11,300 

11,400 

10,700

10,100 

9,520 

9,120 

9,520 

9,420

9,090 

8,570 

8,770 

10,600 

14,500

17,000 

18,700 

21,400 

21,100 

22,000

20,500 

19,000 

17,800 

16,700 

16,900

18,400 

21,400 

26,400 

32,100 

35,000

May

31,300 

36,500 

50,000 

55,600 

57,700

57,900 

60,400 

66,100 

66,200 

53,600

40,700 

35,300 

33 , 400 

32,200 

30 , 500

31,100 

31,400 

31,200 

30,000 

31,900

33,000 

33,200 

30,600 

30,200 

32,300

34 , 200 

36,400 

35,200 

29,300 

26,600 

27,300

Minimum

1,570 

2,710 

4,540

1,390

2,990 

'3,180 

4,050 

8,570 

26,600 

11,700 

2,640 

1,490 

1,350

1,350

June

28, 

26, 

K5, 

24, 

22,

23, 

23, 

£2, 

28, 

27,

23,

21, 

£0, 

20, 

19,

19, 

22, 

22, 

20, 

17,

15, 

14, 

13, 

13, 

13,

13,

17 

16

13

11.

Mean

3,987 

4,578 

10,110

8,537

4,100 

5,408 

7,239 

15,990 

39,070 

20,050 

6,003 

1,937 

1,711

10,050

100 

400 

300 

200 

400

100 

600 

000 

600 

300

600 

200 

800 

900 

400

400 

900 

100 

100 

800

600 

300 

900 

600 

500

100 

300 

000 

300 

700

July

10, 

10, 

10, 

10, 

9.

9, 

8, 

8, 

8, 

7,

7,

6, 

6, 

5, 

5,

5, 

4, 

4, 

4, 

4,

4, 

3, 

3, 

3, 

3,

3, 

3, 

2, 

2, 

2, 

2,

Per 

square 

mile

0.822 

.944 

2.08

1.76

.845 

1.12 

1.49 

3.30 

8.06 

4.13 

1.24 

.399 

.353

2.07

800 

500 

600 

500 

800

190 

930 

670 

290 

790

400 

910 

210 

890 

580

250 

960 

630 

400 

160

010 

800 

610 

450 

290

230 

120 

950 

820 

710 

640

Aug.

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

1,

1,

1,

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

2, 

2, 

2,

1, 

1, 

1, 

1, 

1, 

1,

520 

520 

430 

330 

270

180 

120 

020 

950 

890

880 

880 

910 

940 

820

740 

680 

620 

600 

560

610

820 

620 

490 

010

790 

680 

600 

550 

520 

490

Sept.

1,490 

1,440 

1,420 

1,420 

1,400

1,350 

1,360 

1,610 

1,820 

2,070

2,040 

1,810 

1,650 

1,520 

1,570

1,510 

2,280 

2,570 

2,240 

2,040

1,860 

1,770 

1,730 

1,680 

1,620

1,600 

1,610 

1,620 

1,580 

1,660

Runoff

Inches

0.91 

1.03 

2.40

23.83

.97 

1.16 

1.72 

3.63 

9.23 

4.61 

1.4-5 

.46 

.3?

28.11

Acre-feet

245,100 

272,400 

621,600

6,182,000

252,100 

300,400 

445,100 

951,300 

2,403,000 

1,193,000 

369,100 

119,100 

101,800

7,274,000
254 CLEARWATER RIVER BASIN

Clearwater River at Spalding, Idaho

Location.- Water-stage recorder, lat. 46°25', long. 116°51', In lot 22, sec. 22, T. 36 N. 

H. 4 W. , a quarter of a mile downstream from Lapwal Creek and three-eighths of a mile 

northwest of Spalding post office.

Drainage area.- 9,570 square miles.

Records available.- March 1926 to September 1947.

Average discharge.- 21 years, 14,000 second-feet.

Extremes.- Maximum discharge during year, 114,000 second-feet May 8; maximum gage height, 

19.yy feet Jan. 24 (Ice jam); minimum discharge, 2,530 second-feet Sept. 7 (gage 

height, 2.80 feet).

1926-47: Maximum discharge, 172,000 second-reel Dec. 23, 1933, from rating curve 

extended above 100,000 second-feet by logarithmic plotting; maximum gage height, 25.6 

feet Jan. 5, 1928 (present site and datum), from floodmark (ice jam); minimum discharge probably less than 500 second-feet Jan. 9, 1937, during period of ice effect.

Remarks.- Records excellent. Small diversions from lower tributaries; slight diurnal 

fluctuation at times caused by power plant on South Pork.

Rating table, water year 1946-47, except periods of ice effect 

(gage heights, in feet, and discharge, in second-feet)

2.8 

3.2 

4.0 

5.0

2,530

3,270

5,040

7,870

6.5

8.0

10.0

12.0

13,400

20,500

32,200

47,000

14.0 64,300

16.0 84,700

18.1 108,000

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

'Oct.

2,830

2,860

4,630

5,450

4,350

4,130

3,810

3,600

3,470

3,410

3,370

3,250

3,150

3,110

3,070

3,070

g2,940

g2,880

g2,860

g2,900

g3,780

7,750

8,750

9,750

9,470

31,000

g 20, 000

g!3,900

gll.500

510,000

g9,240

Nov.

g8,420

g8,330

g7,300

g6,450

g6,790

6,900

6,900

6.930

6,640

6,21O

6,130

5,S30

5,550

4,920

5,040

5,370

4,850

5,160

10,500

12,600

10,000

8,590

9,720

14,800

12,800

12 , 900

13,600

16,600

16,600

14,800

-

Dec .

12,900

11,700

11,000

10,200

10,600

10,400

9,960

9,580

9,680

*9,720

15,000

48,200

47,200

61,600

85,800

75,300

45,600

33,000

28,100

24 , 300

21,200

19,200

17,400

15,800

14,400

13,600

14,300

13,100

11,100

10,100

10,200

Jan.

10,300

10,400

8,000

6,500

7,500

9,500

10,500

9,500

8,300

8,200

8,700

8,500

8,000

7,800

6,600

6,300

7,000

7,000

7,000

7,000

7,000

7,000

9,000

18,000

19,500

20,000

18,000

14,200

11,400

10,800

10,100

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June .............. ...........

July ..........................

August ........................

September ......... ...........

Water year 1946-47 ..........

Feb.

9,330

10,200

13 , 200

11,500

 10,700

10,200

9,750

8,950

8,130

7,560

8,220

10,200

19,000

22,500

21,100

21,100

21,000

20,200

18,800

17,000

15,800

15,600

15,800

16,700

16,600

15,500

13,600

13,000

_

_

-

Secondfoot-days

204,280

267,330

730,240

6,076,040

307,600

401,240

523,000

927 ,800

1,940,800

919,100

298 ,630

112,870

110,680

6,733,570

Mar.

12,500

11,900

12,000

12,500

12,100

10,900

10,400

10,100

10,000

11,000

13,000

13,800

13,300

13,400

14,000

 15,200

17,000

19,200

21,200

22,400

22,900

24,700

27,900

25,700

22,700

21,000

19,800

18 , 500

18,200

19,700

26,000

Maximum

31,000

16,600

85,800

85,800

20,000

22,500

27,900

61,600

108,000

46 ,800

16,500

5,060

5,420

108,000

Apr.

27 , 900

26,200

25,100

24,400

23,100

21,600

20,800

19,400

19,500

20,600

20,700

19,000

18,400

20,200

25.60C

30.10C

32,400

38,000

41,100

43,300

40,400

36,800

34 , 300

32,200

32,000

33,600

38,100

46,200

55 , 200

61,600

-

May

55 , 500

58 , 300

75,200

87,000

92,000

92,300

93,900

106,000

108,000

96,800

72,100

61,400

57,200

54,900

51,800

51,200

50,500

49,700

47,600

50 , 200

51,000

51,500

48,200

46,800

48,400

50,800

53,200

53,200

46,000

40,400

39,700

Minimum

2,830

4,850

9,580

2,740

6,300

7,560

10,000

18,400

39,700

18,000

4,870

2,880

2,560

2,560

June

43,100

39,700

37 , 900

37,200

34,700

34,900

37,200

33,700

42,200

46,800

38 , 600

34,000

31,800

33,100

30,100

28,700

31,800

34,200

30,000

27,500

24,300

22,000

21,000

20,500

20,000

19,500

22,200

24,100

20,300

18,000

-

Mean

6,590

8,911

23,560

16,650

9,923

14,330

16,870

30,930

62,610

30,640

9,633

3,641

3,356

18,450

July

16,500

15,800

15,600

15,500

15,000

14,000

13,400

13,000

12,500

12,000

11,600

11,300

10,400

9,720

9,300

8,820

8,360

7,870

7,470

7,140

6,840

6,550

6,300

6,040

5,820

5,680

5,630

5,420

5,160

5,040

4,870

Per

square 

mile

0.689

.931

2.46

1.74

1.04

1.50

1.76

3.23

6.54

3.20

1.01

.380

.351

1.93

Aug.

4,

4,

4,

4,

4,

4,

4,

3,

3,

3,

3

3

3,

3,

3

3

3,

3,

3,

2,

2,

3,

3,

5,

4,

3

3

3,

2,

2,

2

750

630

540

400

310

150

000

870

700

620

600

550

530

620

490

310

190

130

030

960

920

110

830

060

040

510

230

070

960

880

880

Sept.

2,900

2,810

2,740

2,650

2,650

2,600

2,560

2,720

3,680

3,890

4,240

3,720

3,290

2,980

2,750

2,980

4,940

5,420

4,560

4,130

3,850

3,530

3,330

3,210

3,110

3,090

3,170

3,170

3,070

2,940

Runoff

Inct es

0.79

1.04

2.84

23.62

1.20

1.56

2.03

3.61

7.54

3.57

1.16

.44

.39

26,17

Acre-feet

405,200

530,200

1,448,000

12,050,000

610,100

795,800

1,037,000

1,840,000

3,850,000

1,823,000

592,300

223,900

199,700

13,360,000

* Winter discharge measurement made on this day.

g Computed from graph based on ctaff-gage readings at auxiliary gage

Note.- Stage-discharge relation affected by ice Jan. 3-27.
CLEARWATER RIVER BASIN 255

Lochsa River near Lowell, Idaho

Location.- Water-stage recorder, lat. 46°09', long. 115°35', in SW^-SE^- sec. 33, T. 33 N., 

K. '/ K., three-quarters of a mile upstream from Lowell post office, seven-eighths of a 

mile upstream from mouth, and l£ miles downstream from Pete King Creek.

Drainage area.- 1,180 square miles.

Records,,available.- November 1910 to August 1912 (gage heights only), October 1929 to 

bepcemoer 1947.

Average discharge.- 18 years (1929-47), 2,500 second-feet.

Extremes.- Maximum discharge during year, 24,500 second-feet May 9 (gage height, 11.11 

feet } ; minimum, 438 second-feet Sept. 7; minimum gage height, 1.55 feet Oct. 1.

1929-47: Maximum discharge, 34,800 second-feet June 10, 1933 (gage height, 13.44 

feet), from rating curve extended above 25,000 second-feet; minimum, probably less 

than 100 second-feet Jan. 8, 1937, during period of ice effect.

Remarks.- Records excellent except those for periods of no gage-height record, -which 

are good. No diversion. '

Rating table, water year 1946-47, (gage height, in feet, and discharge, in second-feetl 

(Shifting-control mebhod used June 19 to Sept. 30)

1.5

1.6 

2.0 

2.5 

3.0

424

493

820

1,340

1,950

3.5 

4.0 

5.0 

6.0 

7.0

2,660

3,470

5,420

7,700

10,200

8.0

9.0

10.7

13,100

16,500

22,900

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

472

811

1,060

848

802

730

680

638

630

622

606

591

575

567

567

552

537

530

530

591

1,390

1*560

1,980

1,630

4,620

6,960

3,780

2,840

2,360

2,160

1,950

Nov.

1,900

1,730

1,500

1,470

1,530

1,510

1,500

1,420

1,340

1,330

1,300

1,220

1,060

1,070

1,150

1,070

1,030

1.4CO

2", 180

2,210

1,770

1.70C

2,330

2,620

2,300

2,360

2,350

2,630

2,660

2,420

-

Dec.

2,190

2,080

1,960

1,960

1,950

1,900

1,810

1,790

1,780

1,780

4,900

6,750

7,700

9,860

13,100

10,100

7,120

5j420

4,840

4,170

3,650

3,300

2,990

2,760

2,570

2,510

2,540

2,220

1,940

1,940

1,910

Jan.

1,980

1,780

1,490

1,470

1,650

1,780

1,760

1,620

1,510

1,510

1,560

1,460

1,410

1,350

1,200

1,250

1,270

al,250

1,250

1,240

1,250

1,280

1,780

2,250

2,030

2,120

al,900

al,550

al,500

al,550

1,490

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

1,470

1,690

1,640

1,520

1,520

1,500

1,460

1,360

1,300

1,310

1,410

1,720

2,720

2,600

2,540

2,540

2,570

2, 390

2^230

2,190

2,140

^ , 190

2,260

2,250

2,040

1,870

1,910

_

_

-

Seeondfoot-days

44,099

52,060

121,490

1,114,042

48,490

54,840

75,200

166,120

428,940

216,400

62 , 985

20,894 

17,859

1,309,377

Mar.

1,850

1,780

1,770

1,730

1,620

1,510

1,470

1,460

1,430

1,510

1,700

1,730

1,700

1,780

1,870

2,040

2,260

2,800

2,800

3,030

3,200

3,910

4,100

3,790

3,400

3,230

2,990

2,910

2,940

3,350

3,830

Maximum

6,960

2,660

13,100

13,200

2,250

2,720

4,100

12,300

22,900

11 50O 

3^650

1,070 

1,040

22,900

Apr.

3,790

3,700

3,630

3,600

3,370

3,250

3,020

2,940

2,950

2,950

2,890

2,800

2,970

3,780

5,190

5,870

6,450

7,240

6,980

7,390

6,910

6,470

6,090

5,870

6,160

6,930

8,330

10,200

12,100

12,300

May

11,200

13,400

16,800

18 , 500

19,700

19,900

20,900

22,500

22,900

17,700

13,900

12,900

12,100

11,900

11,400

11,600

11,300

11,200

11,100

11,700

12,200

12, COO

11,100

11,100

11,900

12,500

13,100

12,300

10,400

9,540

10,200

Minimum

472

1,030

1,780

458

1,200

1,300

1,430

2,800

9,540

3,960

915

508 

452

452

June

9,930

9,540

9,130

9,000

8,200

8,800

8,630

8,080

11,500

10,100

8,500

7,770

7,680

7.63O

6,910

6,930

8,330

7,650

7,080

6,090

5,440

5,020

4,860

4,700

4,600

4,540

5,940

5,360

4,500

3,960

Mean

1 423

1,'735

3,919

3,052

1,564

1 959

2!426

5,537

13,840

7,213

2,032

674 

595

3,587

July

3,650

3,580

3,580

3,450

3,250

3,070

2,950

2,830

2,690

2,600

2,510

2,360

2,140

2,020

1,940

1,810

1,700

1,610

1,510

1,430

1,370

1,310

1,250

1,200

1,140

1,130

1,070

1,000

975

945

915

Per

square 

mile

1.21

1.47

3 32

2 59

1.33

1 . 66

2.06

4 69 ii'.i

6 11

1.72

.571 

.504

3.04

Aig.

877

877

839

811

784

757

730

704

680

671

654

663

688

363

622

591

575

552

530

523

545

 1, 580

D70

348

680

614

575

545

523

508

515

Sept.

508

493

479

465

458

452

472

630

663

820

671

599

545

500

479

599

1,040

868

748

705

646

614

591

567

537

530

552

530

515

583

Runoff

Inche-3

1.39

1.64

3.83

35.13

1.53.

1.73

2.37

5 24

13 52

6 .82

1 99

.66 

.56

41.28

Acre feet

87 470

103 ', 300

2,210,000

96,180

149^200

329 500

ssolaoo

429,200

124 90O

41^440

35.420

2,597,000

a No gage-height record; discharge 

River near Lowell.

computed on basis of weather records and records for Selway
256 CLEARWATER RIVER BASIN 

South Fork Clearwater River near Elk City, Idaho

Location.- Wire-weight gage, lat. 45°49', long. 115°32 I , in NE£ sec. 25, T. 29 N., R. 

YE., at bridge on road to Orogrande, 0.2 mile upstream from Crooked River and 4| 

miles west of Elk City.

Drainage area.- 261 square miles.

Records available.- September 1944 to September 1947.

Extremes.- Maximum discharge observed during year, 2,200 second-feet May 9 (gage height, 

11.Bb feet); minimum observed, 30 second-feet Sept. 5, 6 (gage height, 7.66 feet).

1944-47: Maximum discharge observed, that of May 9/T.947; minimum dally, 17 second-feet Dec. 11, 1944; minimum gage height observed, 7.53 feet Nov. 17, 1944, Sept. 

3, 1945.

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. No diversion or regulation above station except for mining operations.

Discharge, in second-feet, water year Octoberl946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

38

127

92

63

50

a50

50

56

51

49

43

42

a42

41

40

40

36

38

35

a35

75

108

216

157

222

372

a240

120

108

99

74

Nov.

63

51

a47

63

C8

74

78

83

86

a75

75

74

74

80

7-0

69

a80

116

137

152

135

122

114

al30

116

118

114

116

122

120

-

Dec.

al!6

116

112

110

114

116

»97

a loo

104

108

222

815

800

820

a650

372

329

350

325

280

250

a220

180

120

a90

86

88

85

a75

90

90

Jan.

90

80

65

65

a80

110

il0

95

85

75

85

a80

75

70

60

65

68

70

a70

70

75

75

80

110

130

a!25

110

90

90

90

90

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January ........... ...........

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

85

aS5

*90

85

85

80

75

70

a70

80

80

85

110

130

135

a!50

150

155

155

145

-140

140

a!45

155

155

140

120

120

_

-

-

Secondfoot-days

2,809

2,822

7,430

85,135

2,633

3,215

10,290

26,185

34,856

10,756

3,967

1 f 386

1,394

107,743

Mar.

130

a!40

145

145

135

125

120

120

a!20

120

130

130

135

140

180

a240

300

380

*480

550

575

630

a660

590

545

X

520

520

525

560

a580

620

Maximum

372

152

820

1,200

130

155

660

1,540

1,970

600

273

95

1,970

Apr.

620

630

640

640

610

a570

540

555

555

550

525

540

a620

700

870

920

1,070

1,300

1,260

al,300

1,130

1,080

1,040

920

908

952

al,050

1,190

1,360

1,540

May

1,450

1,640

1,820

al,900

1,930

1,780

1,720

1,740

1,970

1,810

1,470

1,300

1,200

1,100

1,010

947

865

a880

898

865

765

720

715

655

a58O

580

540

520

480

446

560

Minimum

35

47

75

32

60

70

120

525

446

184

60

37

30

30

June

a600

465

422

465

432

441

408

a400

465

480

436

394

342

354

a300

292

376

333

284

284

277

a240

222

209

184

184

505

350

a320

' 292

Mean

90.6

94.1

240

233

84.9

115

332 fl _.

1,124

359

i iCOpfl

44.7

46.5

295

July

273

254

236

a220

203

a215

230

176

142

131

181

165

a!20

101

101

95

88

85

83

a82

81

78

78

75

75

72

a70

69

66

62

60

Per 

square 

mile

0.347

.361

.920

.893

. 325

.441

1.27

3.34

4.31

1 38

.490

.171

.178

1.13

Aug.

a

59

56

53

51

49

49

47

44

40

a39

a

a

38

38

38

38

38

37

37

38

40

40

40

51

78

70

43

40

40

38

40

40

a37

Sept.

35

34

34

32

30

30

a34

62

49

70

56

43

38

a36

37

38

92

95

78

56

aSO

44

41

41

38

38

38

a38

37

50

Runoff

Inches

0.40

.40

1.06

12.13

. 38

.46

1.47

3.73

4.97

1.53

.57

.20

.20

15.37

Ac re- feet

5,570

5,600

14,740

068,900

5,220

6,380

20,410

51,940

69, 140

21,330

7,870

2,750

2,760

213,700

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for 

near Qrangeville.

Note.- Stage-discharge relation affected by ice Dec. 18-21, 23, 24, Dec. 30 to Mar. 21.
CLEARWATER RIVER BASIN 257

South Fork: Clearwater River near Grangeville, Idaho

Location.- Water-stage recorder, lat. 45°55', long. 116°01', in SE-jNWi sec. JO, T. 30 N., 

H. 4 £., just downstream from powerhouse of Washington Water Power Co. ant? 6 miles 

southeast of Grangeville.

Drainage area.- 865 square miles.

Kecords available.- November 1910 to September 1916, Aoril 1923 to September 1947.

average discharge.- 28 years (1912-16, 1923-47), 808 second-feet.

extremes.- Maximum discharge during year, 6,100 second-feet May 9 (gage heiglrt, 9.02 

1'eet ); no flow part of day Aug. 27 (result of regulation); minimum daily, 140 secondfeet (regulated) Sept. 6.

1910-16, 1923-47: Maximum discharge observed, 9,830 second-feet May 3C, 1912 (gage 

height, 9.7 feet), from rating curve extended above 6,500 second-feet; no flow part of 

day Aug. 27, 1947; minimum dally, 41 second-feet Nov. 22, 1931.

Remarks.- Records excellent except those for Apr. 25 to May 10, which are good, and those 

ror periods of ice effect, which are fair. Diurnal fluctuation caused by power plant 

just above station. No diversion for irrigation.

Cooperation.- Water-stage recorder inspected by Washington Water Power Co. ir connection 

with a federal Powar Commission- Troject.

Rating tables, water year 1946-47, except periods of Ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Apr. 25 to May 9, 

Sept. 6-30)

Oct. 1 to May 2 May 3 to Sept. 3o

2.8 

3.1 

3.4 

3.8 

4.2

149

240

362

575

aio

4.7 

5.3

6.0

1,180

1,700

2,430

3,280

4,270

2.7

2.8 

3.0 

3.2

118

142

199

268

3.6

4.5 

5.0

441

649

960

1,340

2,270

3,460

5,670

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

2627'

28

29

30

31

Oct.

177

325

402

297

262

255

227

224

207

217

201

192

192

195

174

183

180

177

186

174

301

454

630

492

619

1,110

630

504

417

392

353

Nov.

353

305

262

285

326

317

358

330

301

297

309

281

210

258

289

227

251

344

470

433

348

362

460

482

433

412

428

476

531

492

Dec.

438

438

423

423

417

433

*392

387

392

382

866

2.200

2,340

2,360

2,210

1,840

1,160

1,020

1,110

1,000

860

804

726

630

564

602

654

449

362

b410

b410

Jan.

b430

b350

b3oO

b300

b350

b500

b500

b450

b4oO

b350

b375

b360

b350

b325

b290

b300

b310

322

b320

317

344

344

372

487

597

580

492

402

b400

b410

b400

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August . . . .

September .....................

Water year 1946-47 ..........

Feb.

b375

b380

*b380

b375

377

362

b340

b310

b300

b340

353

377

509

564

603

648

660

684

690

642

630

619

642

684

684

608

520

548

_

-

Secondfoot-days

10,349

10,630

26 ,702

293,837

12,027

14,204

28,607

65,150

107,930

49,710

18,282

6,254

6,071

355,916

Mar.

575

575

564

548

492

465

460

460

454

470

498

504

514

558

654

762

894

1,080

*1,240

1,340

1,390

1,590

1,610

1,480

1,340

1,320

1,220

1,230

1,300

1,450

1,570

Maximum

1,110

531

2,360

3,560

597

690

1,6-10

5,620

5,660

2,160

1,080

280

362

5,660

Apr.

1,600

1,600

1,620

1,620

1,510

1,460

1,370

1,370

1,390

1,380

1,320

1,280

1,380

1,670

2,160

2,330

2,540

3,070

3,290

3,310

2,960

2,760

2,530

2,350

2,320

2,410

2,660

2,960

3,310

3,620

May

3,510

4,240

4,960.

5,320

5,400

5,250

5,280

5,360

5,660

5,240

4,320

3,920

3,690

3,380

3,100

3,000

2,880

2,720

2,780

2,770

2,640

2,490

2,350

2,290

2,300

2,310

2,560

2,310

?.090

1,960

2,050

Minimum

174

210

362

127

290

300

454

1,280

1,960

1,140

284

145

140

140

June

2,110

1,900

1,810

1,880

1,720

1,890

1,720

1,650

2,130

2,030

1,980

1,740

1,710

1,680

1,560

1,640

2,160

1,890

1,670

1,540

1,410

1,300

1,240

1,200

1,140

1,190

1,840

1,520

1,300

1,160

Mean

334

354

861

805

388

5O7

923

2,172

3,482

1,657

590

202

202

975

July

1,080

1,020

974

967

9oe

86O

815

777

730

712

747

695

622

594

557

526

500

485

461

441

422

408

376

358

362

349

341

315

295

303

284

Per

square 

mile

0.386

.409

.995

.931

.449

.586

1.07

2.51

4.03

1.92

.682

.234

.234

1.13

Aug.

280

2

2

2

64

61

46

239

236

2

1

2

36

99

12

209

222

2

2

2

09

02

04

187

181

1

1

1

78

66

62

170

178

1

2

2

99

43

36

193

166

1

1

1

1

55

68

50

58

145

Sept.

150

151

141

156

147

140

147

226

219

271

272

199

187

153

161

187

362

349

288

246

216

206

199

184

174

198

185

190

188

179

-

Runoff

Inches

0.44

.46

1.15

12.63

.52

.61

1.23

2.80

4.64

2.14

.79

.27

.26

15.31

Acre feet

20,530

21,080

52,960

582,800

23,860

28.J70

56,740

129,200

214,100

98,600

36,260

12,400

12,040

705,900

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
258 CLEARWATER RIVER BASIN

North Fork Clearwater River at Bungalow ranger station, Idaho

Location.- Water-stage recorder, lat. 46°38', long. 115°30', in sec. 18, T. 38 N!, R. 8 

£.. , at Bungalow ranger station, 300 feet downstream from mouth of Orogrande Creek, 

1,000 feet downstream from steel highway bridge, and 17 miles northeast of Pierce.

Drainage area.- 996 square miles.

Records available.- September 1944 to September 1947.

Extremes.- Maximum discharge during year, 1^700 second-feet May 8 (gage h3ight, 9U7 

reet); minimum. 597 second-feet Oct. 19, Sept. 6; minimum gage height, 2.58 feet 

Oc<-. 12-.

-1944-47: Maximum discharge, that of May 8, 1947; minimum daily, 350 second-feet 

Dec. 12, 1944.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are good. No diversion or regulation above station.

Cooperation.- Water-stage recorder inspected by U. S. Forest Service ranger at Bungalow 

ranger station.

Ratine table, water year 1946-47, except periods of iee effect

(gage height, in feet, and discharge, in second-feet)

(Shifting-control method used Oct. 1 to Dec. 23)

2.6 

2.9 

3.2 

3.6 

4.0

570

870

1,230

1,850

2,610

4.5 

5.0 

6.0 

7.5 

9.0

3,720

5,070

8,210

13,500

19,000

Discharge, in second-feet, water year October 1946 to September 19.'7

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.

642

1,130

936

782

750

700

680

680

69O

680

660

651

642

660

642

624

615

615

615

815

1,730

1,490

1,820

1,430

4,880

4,810

2,740

2,110

1,780

1,650

1,490

Nov.

1,460

1,310

1,110

1,190

1,200

1,220

1,220

1,150

1,090

1,090

1,060

b940

b850

947

1,050

903

969

1,880

2,880

2,220

1,820

1,730

2,630

2,550

2,320

2,490

2,570

3,340

3,010

2,630

-

Dec.

2,330

2,200

2,030

2,010

1,990

1,890

1,800

1,800

1,760

1,830

5,730

6,930

7,980

11,200

15,300

11,900

8,340

6,520

5,480

4,580

4,000

3,580

3,230

2,920

2,670

2,650

2,570

2,280

1,920

2,030

1,920

Jan.

2,050

1,710

bl,400

bl.300

01,450

bl.800

bl,900

bl,800

bl,600

bl,600

bl,600

bl.500

bl,400

bl,300

bl,200

bl,100

bl,200

1,380

1,480

1,440

1,480

1,490

1,930

2,610

2,240

2,390

2,200

1,750

1,710

1,830

1,730

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946 47 ..........

Feb.

1,700

b2,000

2,490

2,180

2,070

1,900

1,730

1,570

1,540

1,580

1,820

1,990

2,670

2,690

2,760

2,840

2,900

2,840

2,650

2,470

2,370

2,300

2,370

2,490

2,510

2,260

2,110

2,180

_

-

Secondfoot-days

40,139

5O, 829

133,370

1,074,943

51,580

62 , 980

83,100

174,150

350,250

145,140

50,160

25, 613

23,242

1,190,553

Mar.

1,990

1,940

1,980

1,920

1,760

1,660

1,630

1,620

1,570

1,650

1,760

1,820

1,830

1,980

2,110

2,320

2,570

2,880

3,230

3,480

3,620

4,420

4,530

4,070

3,620

3,410

3,180

3,120

3,210

3,800

4,420

Maximum

4,880

3,340

15,300

15,300

2,610

2,900

4,530

11,700

18,400

7,220

2,630

1, 200

 1,600

18,400

Apr.

4,3fiO

4,310

4,230

4,100

3,800

3,530

3,300

3,180

3,140

3,160

3,070

2,990

3,210

4,180

5,540

6,080

6,550

6,870

6,800

7,350

7,000

6,740

6,580

6,550

6,960

7,720

9,050

10,500

11,700

11,600

May

10,800

12,100

13,900

14,900

15,400

15,300

16,200

18,400

17,700

14,500

12,500

11,500

11,300

11,000

10,500

10,300

9.900

9,560

9,630

9,730

10,000

9,630

9,080

8,910

9,020

9,050

9,220

8,570

7,650

6,680

7,320

Minimum

615

850

1,760

615

1,100

1,540

1,570

 £, 990

6 ,680

i',000

680

600

600

June

6,840

6,520

6,360

6,210

5,660

5,960

5,450

5,570

',220

<5,460

5,780

5,420

5,330

5,190

4,700

4,640

5,270

4,700

4,470

4,130

3,840

3,600

3,430

3,320

3,160

3,140

3,580

3,300

3,070

2,820

Mean

1 295

1 694

4^302

2,945

1,664

2,249

2,681

5,805

11,300

1, 618

826

775

3,262

July

2.63C

2,510

2,410

2,330

2,240

2,120

2,050

1,980

1,900

1,870

1,990

1,820

1,700

1,620

1,570

1,500

1,440

1,400

1,360

1,310

1,270

1,240

1,200

1,180

1,160

1.1BO

J.090

1,060"

1,050

1,020

1,000

Per

square 

mile

1.30

1.70

4.32

2.96

1 . 67

2 26

2 69

5.33

11.3

4.86

I

K 1?

. DC

. 329

.778

3.28

Aug.

969

958

925

958

925

881

370

348

326

837

826

326

348

304

771

760

740

730

710

 710

760

1,

1,

(

360

>00

J59

782

740

£

6

7

10

90

80

00

710

Sept.

670

651

651

630

620

600

620

750

950

960

900

780

700

650

650

950

1,600

1,100

900

850

750

730

700

680

660

690

720

710

700

720

Runoff

Inches

1.50

1.90

4.98

40.15

1.93

2.35

3.10

6.50

13.08

5.42

1 . 87

96

.87

44.46

Acre-feet

79,610

100,800

264,500

2,132,000

102*300

164^800

345,400

694,700

287, 900

99,490

50, 800

46,100

2,361,000

discharge computed on basis of partial renear Ahsahka.
CLEARWATER RIVER BASIN 259

North Fork Clearwater River near Ahsahka, Idaho

Location.- Water-stage recorder,, lat. 46°31', long. 116°18', in SEj sec. 26, T. 37 II,, R. 

IE., at Bruee's Eddy, if miles northeast of Ahsahka and 2 miles upstream from mouth.

Drainage area.- 2,440 square miles.

Records available.- August 1926 to September 1947.

Average discharge.- 21 years, 5,243 second-feet.

Extremes.- Maximum discharge during year, 46,300 second-feet Dec. 15 (gage height, 23.26 

feet); minimum, 1,110 second-feet Oct. 18, 19 (gage height, 2.78 feet).

1926-47: Maximum discharge, 100,000 second-feet Dec. 23, 1933 (gage height, 35.5 

feet, from floodmarks), from rating curve extended above 24,000 second-feet by logarithmic plotting; minimum, probably less than 250 second-feet Jan. 8, 1937, during 

period of ice effect.

Remarks. - Records excellent except those for periods of ice effect or no gage-1-eight 

record, which are good. No diversion or regulation above station.

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

al,700

a2,!00

1,970

f 1,560

hi, 370

al,3OO

al,300

al,300

al,300

al,250

al,250

1,200

1,190

1,180

1,180

1,150

1,130

1,130

1,130

1,220

2,720

3,240

3,820

3,260

5,180

11,100

5,450

3,950

3,310

3,040

2,790

Nov.

2,680

2,580

2,220

2,050

2,190

2,210

2,290

2,250

2,120

2,040

2,040

1,960

1,770

1,650

1,730

1,830

1,650

2,860

6,480

5,670

4,160

3,690

4,970

6,480

5,370

5,520

5,910

8,020

7,280

6,190

~

Dec.

5,400

4,860

4,500

4,300

4,590

4,360

4,130

4,050

4,120

*4,210

11,200

18,500

16,700

26,100

40,900

29,900

18.6OO

14,000

11,800

9,950

8,720

7,940

7,220

6,560

6,050

5,860

5,920

5,290

4,540

4,370

t,280

Jan.

4,360

4,120

3,280

2,920

3,210

3,980

4,340

4,050

3,570

3,520

3,670

3,500

3,330

.3,140

2,690

2,450

2,710

b3,200

b3,200

bS,200

3,240

3,040

3,710

6,900

7,050

7,140

6,560

5,140

4,320

4,330

a4,200

Bonth

October .......................

November ......................

December ......................

Calendar year 1946 .........

January ........... ...........

February ......................

March .........................

April .........................

Bay ...........................

June ..........................

July ..........................

August ........................

September .....................

Hater year 1946-47 ..........

Feb.

3,740

*4,230

5,660

f4,000

a4,300

a4,200

a4,000

3,680

3,370

3,310

3,650

4,360

6,840

7,980

7,980

8.3OO

8,360

8,080

7,480

6,770

6,350

6,190

6,340

6,840

6,830

6,340

5,730

5,600

-

-

-

Secondfoot-days

74,770

1O7,86O

308,920

2,315,640

124,070

160,510

227 ,28O

626 , 9OO

276,720

95,200

49 190

45)390

2,466,620

Mar.

5,250

4,980

5,110

5,410

5,070

4,590

4,430

4,320

4,190

4,680

5,590

5,820

5,600

5,810

6,130

6,800

7,780

8,800

9,730

10,000

10,100

11,500

12,200

10,900

9,500

8,730

8,080

7,670

7,730

8,880

11,900

Maximum

11,100

8,020

4O.9OO

40,900

7,140

8,360

12,200

34^900

13,400

5,070 

1,980

3,110

40,900

Apr.

11,900

11,100

10,400

10,000

9,200

8,540

7,940

7,550

7,480

7,740

7,880

7,280

7,300

8,600

11,100

11,900

12,800

14,800

14,900

16,300

15,200

14,200

13,500

13,100

13,400

14,600

16,600

18,900

21,600

23,000

-

Bay

20,500-

21,800

24,900

27 , 500

28,900

29,000

29,600

f34,800

34,900

f29,800

23,700

21,300

20,000

19,400

18,100

17,700

16,700

16,200

15,700

16,000

16,500

16,100

15,200

14,700

14,900

15,100

15,300

14,900

13,100

12,000

12,600

Minimum

1,130

1,650

4,050

-1,130

2,450

3,310

7 ,28O

12,000

5,400

1,920 

1,320

1,190

1,130

June

12,400

11,800

11,100

11,400

10,500

11,400

11,000

10,400

13,400

13,400

11,500

10,400

9,950

10,500

9,180

8,650

9,740

9,450

8,670

8,080

7,460

6,980

6,690

6,490

6,200

5,990

6,470

6,270

5,850

5,400

Bean

2,412

3,595

9,965

6,344

4,002

5,732

7 332

12I290

20,220

9,224

3,071

l)546

6,758

July

5,070

4,840

4,650

4,450

4,250

4,110

3,950

3,760

3,610

3,450

3,500

3,430

3,220

3,080

2,970

2,840

2,740

2,630

2,540

2,460

2,380

2,330

2,260

2,190

2,150

2,170

2,160

2,070

2,040

1,980

1,920

Per

square 

mile

0.989

1 47

4.08

2.60

1.64

2 35

3.00

5 . 04

8 . 29

3 78

1 " ?ft

.650

.634

2.77

Avg.

1,890

l,£

l,f

1,£

60

20

50

1,810

1,740

l,f

1,1

1,E

90

50

10

1,600

1,600

1,5

1,1

1,£

80

00

00

1,530

1,480

1,4

1,4

1,4

60

40

10

1,370

1,420

1,4

l.S

1,S

80

80

30

1,560

1,450

1,4

1,3

1,3

1,3

00

50

30

20

1,380

Sept.

1,360

1,320

1,280

1,240

1,230

1,190

1,230

1,490

1,870

1,920

1,790

1,520

1,390

1,300

1,260

1,840

3,110

2,170

1,770

1,740

1,630

1,510

1,440

1,400

1,360

1,440

1,490

1,420

1,350

1,330

Runoff

Inches

1.14

1.64

4.71

35.29

1.69

3.46

5.F2

9,f6

4.?2

.75

.71

37. 6O

Ac re- feet

148,300

213,900

612,700

4,592,000

246,100

318,400

45O.80O

731,500

1,243,000

188 ,800

97_,570

92,010

4,892,000

» Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Clearwater River at Kamlah 

nd at Spalding.

b Stage-discharge relation affected by ice. 

f Computed from partly estimated gage-height record', 

h Computed from staff-gage readings.
260 CLEARWATER RIVER BASIN 

Potlatch Creek at Kendrick, Idaho

Location.- Wire-weight gage, lat. 46°37', long. 116°39', in NW£ sec. 25, T. 38 N., R. 

3~TJ77~at Mill Street Bridge in Kendrick, 0.9 mile downstream from Bear Creek and 3.2 

miles upstream from Middle Potlatch Creek.

Drainage area.- 460 square miles.

Records available.- October 1945 to September 1947.

Extremes.- Maximum dischsree observed during year, 3.660 second-feet Dec. if (gage 

neigfit, 8.24 feet); minimum observed, 5.0 second-feet Aug. 20, 29, Sept. 6; minimum 

gage height observed, 3.35 feet Aug. 20.

1945-47: Maximum discharge observed, 7,600 second-feet (revised) nee. 28, 1945 

(gage height, 10.35 feet); minimum observed, 4.3 second-feet Aug. 25; mirimum gage 

height observed, 3.28 feejt, Oct. 12* 16; 1945.

Revisions.- 'The maximum discharge for the water year 1946 has been revised to 

7,6uu second-feet Dec. 28, 1945 (gage height, 10.35 feet), superseding figure published in Water-Supply Paper 1063.

Remarks . - Records fair except those for periods of Ice effect, which are poor. 

read once or twice daily. No diversion or regulption.

Gage

Discharge, in second-feet, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7.2

8.9

9.2

15

12

10

12

11

11

9.8

9.2

9.8

9.5

9.2

8.9

9.5

9.5

9.2

9.2

14

34

68

62

63

68

66

62

43

37

29

24

Nov.

25

30

27

24

23

28

37

33

27

36

31

27

25

24

26

22

24

28

188

185

169

102

150

159

172

286

308

534

403

268

-

Dec.

202

159

126

109

114

114

100

102

240

*199

864

1,690

2,490

1,790

3,420

1,830

610

508

398

308

282

264

236

195

159

199

192

111

106

104

110

Jan.

110

72

60

64

70

75

70

65

60

62

64

60

55

52

50

55

60

60

60

60

60

65

150

2,910

2,840

3,200

1,910

741

725

717

490

Month

October .......................

November ......................

December ......................

Calendar year 1946 .........

January .......................

February ......................

March .........................

April .........................

 ay Mnv ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1946-47 ..........

Feb.

*398

1,590

1,330

990

827

595

534

477

448

377

332

342

2,690

2,420

2,180

2,030

1,860

1,640

1,570

1,110

1,130

1,180

1,270

1,200

1,110

775

484

496

_

-

-

Secondf oo t-days

760.1

3,421

17,331

151,215.0 "

15,092

31,385

23,985

19,939

4,082

2,549

405.9

192.8

479.2

119,622.0

Mar.

408

431

541

749

701

448

502

454

465

1,240

1,470

1,100

970

855

864

883

911

960

1,020

940

911

864

827

733

677

581

547

459

414

490

1,570

Maximum

68

534

3,420

3,420

3,200

2,690

1,570

1,430

372

182

23

8.6

47.0

3,420

Apr.

1,430

1,170

921

845

766

677

617

575

568

647

693

561

490

454

448

419

425

1,060

980

1,310

911

725

581

454

414

392

372

346

356

332

-

May

295

256

232

213

185

166

148

142

372

290

206

166

148

111

' 104

102

98

94

87

80

74

38

63

57

54

51

48

44

41

43

44

Minimum

7.2

22

100

4.3

50

332

408

332

41

32

8.0

5.0

5.0

5.0

June

66

93

79

102

116

150

162

182

178

169

145

93

87

109

102

87

70

66

63

55

48

44

40

37

36

36

35

34

33

32

-

Mean

24.5

114

559

414

487

1,121

774

665

132

85.0

13.1

16 sO

328

July

23

23

23

20

18

18

15

-15.

15

13

15

12

12

14

12

14

12

12

10

10

10

8.9

8.9

8.9

8.9

8.9

8.9

11

9.2

8.0

8.3

Per 

square 

mile

0.053

.248

1.22

.900

1.06

2.44

1.68

1.45

.287

.185

.028

.014

.035

.713

Aug.

8

8

7

8

7

6

7

6

7

6

.0

.0

.8

.6

.2

.8

.0

.2

.0

.2

6.0

5

6

5

5

5

5

5

5

5

5

5

5

6

6

6

6

6

5

5

5

.8

.0

.4

5

.5

8

4

4

0

4

5

8

5

2

0

8

2

0

4

4

Sept.

5.8

6.0

7.0

6.2

5.4

5.0

5.2

6.5

7.5

14

14

14

11

8.6

8.0

18

29

47

37

26

26

22

20

18

15

16

18

24

20

19

-

Runoff

Inches

0.06

.28

1.40

12.22

1.22

2.54

1.94

1.61

.33

.21

.03

.02

.04

9.68

Acre-feet

1,510

6,790

34,380

299,900

29,930

62,250

47,570

39,550

8,100

5,060

805

382

950

237,300

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Dec. 31, Jan. 1, 3-23.
MISCELLANEOUS DISCHARGE MEASUREMENTS 361

Measurements of stream flow in the Snake River Basin made at points other than gaging 

stations are given in the following table:

Miscellaneous discharge measurements in Snake River Basin during water year 

October 1946 to September 1947*

Snake River main stem, Idaho

Date

May 9 

Nov. 20

July 19 

Sept. 5

Stream

Snake River. .....

....do........... 

....do...........

Tributary to or 

diverting from 

Columbia River. ..... 

.... .do. ............

... .do. ............. 

.... do ..............

Locality

SWj sec. 16, T. IS., R. 45 E. , at 

site of former gaging station, 400 

feet above Bear Creek, 5,600 feet 

above Calamity Ppint dam site, £nd 

7J miles southeast of Irwin, Idaho. 

Sec. 11, T. 93., R. 14 E. , 1,500 feet

below Clear Lakes Outlet and 4j miles 

north of Buhl, Idaho. 

SEi sec. 35, T. 9 M. , R. 30 E. , at 

crossing of U. S. Highway 395/410, 

2j miles east of pasco, Wash. 

.... do ................................

Discharge 

(sec. -ft.)

18,120 

6,440

30,200 

18,600

Henrys Fork Basin, Idaho

of former station half a mile southeast of Big Springs, Idaho, railroad 

station and £ mile below road bridge.

Mud Lake Basin, Idaho

Mar. 19

below state Highv 

2 miles south of 

station, and 29. n 

Idaho.

«ay 28 crossing, 

Kaufman ranger 

niles west of Sraill,

112

Little Lost River Basin, Idaho

Apr. 30 

30

Dry Creek. ....... 

.... do ...........

Little Lost River. . . 

... .do. .............

Sec. 36, T. 10 M. , R. 24j E. , at 

downstream toe of Dry Creeic Dam 

and 36 miles northwest of Howe, 

Idaho. 

Sec. 13, T. 10 M. , R. 25 E. , 2 miles 

below Taylor Ranch, 85 miles below 

Dry Creek Dam, and 36 miles northwest of Howe, Idaho.

16.2 

0

Big Lost River Basin, Idaho

May 9 Zollinger ditch. . Big Lost River. ..... Sec. 32, T. 8 M. , R. 23 E. , 500 feet 

east of gaging station on Big Lo.it 

River (east channel) above Macka^ 

Reservoir, 3 miles above Maokay 

Dam, and 7j miles northeast of 

Mackay, Idaho.

8.12

Tributaries between Portneuf River and Salmon Falls Creek, Idaho

Mar. 20

12

July 22

Aug. 30

Rock Creek. ......

(2 channels).

.... do ...........

Snake River. ........

. ...do. .............

Sec. 33, T. 10 S. , R. 31 E 

miles south of Rockland,

at mouth, 4 miles north < 

Falls, Idaho.

. . do ...... ....... .....

, 4.7 

Idaho. 

17 E.,

jf Twin

11.0 

221

208

214

218

Salmon Falls Creek Basin, Nev.

Apr. 13

May 20

July 23

Sept. 1

Salmon Falls

Creek.

.... do ...........

Snake River. ........

.... do ..............

Sec. 30, T. 45 M. , R.

Highway 93 bridge,

of Contact, Nev.

.... do .-, ............

64 E. , at U. S.

1.4 miles south

94.9

20.0

Canyon Creeic Basin, Idaho

Oct. 15

30

Ake lateral No. 2

.... do ...........

Mountain Home feeder

canal.

... .do. .............

Sec. 36, T. 2 S., R. 6 E. , at head,

5 miles north of Mountain Home,

Idaho .

.... do ................................

0.70

6.03

te.o

4.95

t Field estimate.

Includes measurements made in the Owhyee and Imnaha River Basins in 1945.
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Snake River Basin during water year 

October 1946 to September 1947--Continued

Canyon Creek Basin, Idaho Continued

Date

June 5

July 14 

16 

Aug. 26

Stream

Ake lateral No. 2.

....do...........

Tributary to or 

diverting from 

Mountain Home feeder 

canal.

Locality

Sec. 36, T. 2 S 

5 miles north 

Idaho .

, R. 6 E. , at head 

of Mountain Home ,

Discharge 

(sec. -ft.).

3.07

2.52 

2.33 

2.42

Bruneau Riveir Basin, Nev.

Sept. 15

13

12

13

13

13

13

14.

13

13

13

13

13

13

12

12

16

15

15

15

Bruneau River. . . .

.... do ...........

.... do ...........

Mason Creek. .....

Willow Creek. ....

Seventy-Six Creek

Badger Creek. ....

Copper Creek. ....

.... do ...........

Deer Creek. ......

Cottonwood Creek.

Little Cottonwood

Creek.

Miller Creek. ....

Coon Creek. ......

Meadow Creek. ....

....do.. .........

McDonald Creek

Jarbldge River. . .

....do...........

East Fork

Jarbidge River.

Snake River. ........

.... do ..............

.... do ..............

Bruneau River. ......

... .do. .............

.... do ..............

....do..............

.... do ..............

... .do. .............

.... do ..............

.... do ..............

.... do ..............

.... do ..............

....do..............

.... do ..............

.... do ..............

.... do ..............

.... do ..............

....do..............

Jarbidge River. .....

Sec. 21, T. 44 N. , R. 57 E. , 2 miles

northwest of Charleston, Nev.

Near southeast corner T. 46 N. , R. 56

E. , 9 miles southeast of Rowland,

Nev.

Sec. 5, T. 46 N. , R. 56 E. , below

Meadow Creek, lj miles south of

Rowland, Nev.

Sec. 36, T. 43 N. , R. 57 E. , at mouth,

6£ miles southeast of Charleston,

Nev.

Sec. 14, T. 43 N. , R. 57 E. , at road

crossing near mouth, 4 miles south

of Charleston, Nev.

Sec. 26, T. 44 N. , R. 57 E. , near

Charleston, Nev.

Sec. 27, T. 44 N. , R. 57 E. , at road

crossing neap mouth, 1 mile northwest of Charleston, Nev.

Near lat. 41°45", long. 115"30', about

5 miles above mouth and 5£ miles

northeast of Charleston, Hev.

Sec. 16, T. 44 N. , R. 57 E. , at road

crossing 1 mile above mouth and

3 miles northwest of Charleston, Nev.

Sec. 32. T. 45 N. , R. 57 E. (unsurveyedj at mouth, 6^ miles northwest

of Charleston, Nev.

Sec. 19. T. 45 N. , R. 57 E. (unsurveyed) at road crossing below diversion, 8 miles northwest of

Charleston, Nev.

See. 19. T. 45 N. , R. 57 E. (unsurveyed) at road crossing 8£ miles

northwest of Charleston, Nev.

Sec. 7, T. 45 N. , R. 57 E. (unsurveyed) at road crossing below diversion 10i miles northwest of

Charleston, Nev.

Sec. 31. T. 46 N. , R. 57 E. (unaurveyed) 100 feet above mouth, ll£

miles northwest of Charleston,

Nev.

Sec. 25, T. 46 N. , R. 55 E. , 6 miles

southwest of Rowland, Nev.

Sec. 5, T. 46 N. , R. 56 E. , at mouth

1-j miles south of Rowland, Nev.

Sec. 17, T. 47 N. , R. 56 E. , near

mouth, li miles north of Rowland,

Nev.

Sec. 28, T. 46 N. , R. 58 E. , 2 miles

south of Jarbidge, Nev.

See. 32, T. 15 S. , R. 9 E., 150 feat

upstream from East Fork Jarbidge

River, 14 miles west of Three Creek,

Idaho .

Sec. 32, T. 15 S. , R. 9 E. , 50 feet

above mouth, 14 miles west of Three

Creek, Idaho.

tO. 3

3.4

5.0

Dry

tTrickle'

*Trlckle

t.2

1.4

t.4

t.2

tTrickle

tTrickle

t.3

1.4

t.8

t.2

t.4

8.5

9.0

8.7

t Field estimate.

* Less than 0.1 second-foe

Owyhee River Basin, Oreg.

1945

Oct. 13

7

Owyhee

Crooked

River. ....

Creek. . . .

Snake

Owyhee

River. ........

River. .......

Sec. 9, 1

Crookec

;i miles

. 31 S

Creek

above

. , R. 41

, Oreg.

mouth, n

E. ,

»ar

below

Rome, Oreg.

207

25.5

Malheur River Basin, Oreg.

1947 

Mar. 19

July 19

Warmsprings Creek

....do...........

North Fork Malheur 

River.

.... do ..............

Set. 1 or 2, T 

near Beulah,

....do........

19 S. , R. 37 E. , 

Oreg.

8.3

t.5

t Field estimate.
MISCELLANEOUS DISCHARGE MEASUREMENTS 263

Miscellaneous discharge measurements In Snake River Basin during water year 

October 1946 to September 1947 Continued

Payette River Basin, Idaho

Date

Nov. 1

Stream

Idaho Power Co. 

canal.

Tributary to or 

diverting from 

Payette River. ......

Locality

See. 27, T. 7 N. , R. 2 E. , about 

i mile west of Horseshoe Bend and 

2.3 miles above Horseshoe Bend power 

plant of Idaho Power Co.

Discharge 

(sec. -ft.)

841

Welser River Basin, Idaho

May 7

June 12 

July 30 

May 7

June 12 

Sept. 4

Johnson Creek. . . .

Johnson Park Creek

Welser River. .......

Johnson Creek. ......

SEi sec. 36, T. 17 N. , R. 3 W. , above 

Johnson Park Creek and 10 miles 

northwest of Council, Idaho. 

.... do ............. ...................

SEi sec. 36, T. 17 N. , R. 3 W. , 

mouth, and 10 miles northwest 

Council, Idaho.

at 

of

52.2

16.2 

2.26 

29.7

5.96 

T.14

T Field estimate.

Burnt River Basin, Oreg.

July 9

June 7

Sept. 5

Burnt. River. .....

Van Cleve ditch. .

....do. ..........

....do...........

Snake River. ........

Burnt River. ........

.... dc ..............

See. 25, T. 11 S., R. 42 E. , at private

road bridge, 3 miles west of Durkee,

Oreg.

[fear southwest corner Sec. 21, T. 12 S.,

R. 37 E. at Intake below gage bia

above cableway on Burnt River, near

Hereford, Oreg.

.... do .................................

61.2 

4.5

3.1

4.0

Imnaha River Basin, Oreg.

1945 

July 27

1947

Imnaha River. .... Snake River. ........ T. 5 S., R. 27 E. , at Cover-dale forest 

guard station.

237

Salmon River Basin, Idaho

Oct. 24

17

Secesh River. ....

Warren Creek. ....

South Fork Salmon

River.

Salmon River. .......

Sec. 35, T. 22 N. , R. 5 E. , 1..000 feet

below mouth of Alex Creek and 7 miles

southeast of Burgdorf, Idaho.

Sec. 15, T. 23 N. , R. 6 E. , 30 feet

below Schlssler Creek and 5 miles

northwest of Warren, Idaho.

97.6

24.1

INDEX

Page 

Accuracy of field data and computed

results.......................... 5

Acre-foot, definition of............... 1

Afton, Wyo., Swift Creek near.......... 44

Agencies other than Geological Survey,

records collected by............. 11-12

Agency Valley Reservoir, Oreg., contents of......................... 164

Ahsahka, Idaho, North Pork Clearwater

River near....................... 259

Ake lateral No. 2, Idaho, discharge

measurements of.................. 262

Alpine, Idaho, Snake River at.......... 16

Alturas Lake Creek near Obsidian, Idaho 223 

American Palls Reservoir at American

Palls , Idaho1 ^,.................. 22-23

Anderson Ranch Dam, Idaho, Anderson

Ranch Reservoir,at............... 152

Pall Creek near...................... 156

South Pork Boise River at............ 153

Anderson Ranch Reservoir at Anderson

Ranch Dam, Idaho................. 152

Arco, Idaho, Big Lost River near....... 107

Argora, Idaho, Medicine Lodge Creek

near............................. 96

Arrowrock, Idaho, Arrowrock Reservoir

at............................... 144

Boise River near..................... 145

Moore Creak near..................... 158

Arrowrock Reservoir at Arrowrock, Idaho 144 

Ashton, Idaho, Henrys Pork near........ 51

Asotin Creek near Asotin, Wash......... 250

Auburn, Wyo., Stump Creek near......... 46

Bacon Creek near Mesa, Idaho........... 198

Badger Creek, Nev., discharge measurements of......................... 262

Banks, Idaho, North Pork Payette River

near............................. 182

South Pork Payette River near........ 170

Birch Creek (Portneuf River Basin)

near Downey, Idaho.

Blaokfoot, Idaho, Blackfoot River

near.............................

Snake River near. ..............'.....,

Blackfoot River near Blackfoot, Idaho.. 

Blaine, Idaho, Camas Creek near.

Blaine County Investment Co.'s canal

near Howe, Idaho.

Blue Lakes Outlet, Idaho, discharge 

measurements of...............

Boise River'at Boise, Idaho.

Barber, Idaho,' New York Canal near..... 159

Bear Creek near Wallowa, Oreg..........

Bear Valley Creek near Cape Horn, Idaho 230 

Beaver Creek at Camas, Idaho...........

at Dubois, Idaho..................... 94

at Spencer, Idaho.................... 93

Bellevue, Idaho, Big Wood River near... 113 

Bennett, Idaho, Lime Creek near......... 155

Little Camas Canal near.............. 157

Beulah, Oreg., North Pork Malheur River

at............................... 166

North Fork Malheur River near........ 165

Big Creek near Big Creek, Idaho........ 231

Big Lost River at Howell Ranch, near

Chilly, Idaho.................... 101

at Wild Horse, near Chilly, Idaho.... 100

below Mackay Reservoir, near Mackay,

Idaho............................ 106

east channel of, above Mackay Reservoir, near Mackay, Idaho......... 102

near Arco, Idaho..................... 107

west channel of, above Mackay Reservoir, near Mackay, Idaho......... 103

Big Lost River Basin, Idaho, discharge

measurements in.................. 261

Page 

72

69

21

69

120

99

261 

147 

at Dowling Ranch, near Arrowrock,

Idaho............................ 145

at Notus, Idaho...................... 149

diversions from.....................146,148

Middle Pork, near Twin Springs,

Idaho............................ 150

near Twin Springs, Idaho............. 143

South Pork, at Anderson Ranch Dam,

Idaho............................ 153

near Peatherville, Idaho........... 151

near Lenox, Idaho.................. 154

Boise River Basin, Idaho, gagin,3-

station records in..............143-160

Bridge, Idaho, Raft River near......... 73

Bruneau. Idaho, Jacks Creek near....... 135

Wickahoney Creek near................ 135

Bruneau River, Idaho, discharge

measurements of.................. 262

near Grand View, Idaho............... 134

near Hot Spring, Idaho............... 133

near Winter Camp Ranch, Idaho........ 132

Bruneau River Basin, Nev., discharge

measurements in.................. 262

gaging-station records on...........132-135 -- - - - 38

30 

167

258

235

208

263 

gaging-station records in...........207-208

160

95

92

120

92

91

199

191

Big Springs Creek, Idaho, discharge

measurement of. 

Big Wood River at Gooding, Idaho.

at Hailey, Idaho....................111-112

below Magic Dam, near Richfield, 

Idaho.......................

near Bellevue, Idaho

Big Wood River Basin, Idaho, gagingtation records in............. .111-129 Clayton, Idaho, Salmon River near

Big Wood Slough at Hailey, Idaho....... 119

Birch Creek (Mud Lake Basin), Idaho, 

discharge measurement of. 261

Buffalo Pork near Moran, Wyo.

Buhl, Idaho, Snake River at...........

Bully Creek near Vale, Oreg...........

Bungalow ranger station, Idaho, North

Pork Clearwater River at.

849 Burgdorf, Idaho, Secesh River near.....

Burnt River near Hereford, Oreg.

95 Burnt River Basin, Oreg., dischrrge

measurements in.

Caldwell, Idaho, Lake Lowell nesr.

Camas, Idaho, Beaver Creek at.....

Camas Creek at.

Camas Creek (Big Wood River Basin)

near Blaine, Idaho.

Camas Creek (Mud Lake Basin)-at Camas, 

Idaho............................

at Eighteenmile shearing corral, near 

Kilgore, Idaho...................

Cambridge, Idaho, Pine Creek near......

Weiser River near....................

Canyon Creek, Idaho, discharge measurements of. . .-.................... .261-262

Canyon Creek Basin, Idaho, gaging-station records on.................130-131

Cape Horn, Idaho, Bear Valley Creek

230 

229

near. 

Middle Pork Salmon River near.

gaging-station records in...........100-110 Carey, Idaho, Little Wood River near..124,125

Cascade, Idaho, North Fork Payette

261

116 Catherine Creek near Union, Oreg.......

River at. 180 

243 

226 

218 

115 Challis" Creek"near Challis, IdaHo!..... 226

Challis, Idaho, Challis Creek near...., 

Salmon River near..

60 

near Gooding,'Idaho.................. 117 Chilly, Idaho, Big Lost River near....100,101

113 Chester, Idaho, Pall River near.

Clarkston, Wash., Snake River near..... 3, 36

Yankee Pork Salmon River near. 

Clear Creek (tributary to PayettR River)

at Lowman, Idaho.

217

225

174

881401 O- 50 - 18 265
INDEX

Clear Creek (tributary to Raft River)

near Naf, Idaho.................. 74

Clearwater River at Kamiah, Idaho...... 253

at Spalding, Idaho................... 254

North Fork, near Ahsahka, Idaho...... 259

at Bungalow ranger station, Idaho.. 258

South Fork, near Grangeville, Idaho.. 257

near Elk City, Idaho. .............. 256

Clearwater River Basin, Idaho, gagingstation records in.............. 251-260

Computations, accuracy of, results-of.. 5 

Contents, definition of................ 2

Control, definition of................. 1

Coon Creek, Nev., discharge measurement of.......................... 262

Cooperation, record of................. 12

Copper Creek, Nev., discharge measurements of......................... 262

Cottonwood Creek (Bruneau River Basin),

Nev., discharge measurement of... 262 

Cottonwood Creek (Salt River Basin)

near Smoot, Wyo.................. 43

Council, Idaho, Johnson Creek near..... 197

Weiser River near.................... 190

Crane Creek at mouth, near Weiser,

Idaho............................ 203

near Midvale, Idaho .................. 202

Crane Creek Reservoir near Midvale,

Idaho............................ 201

Crooked Creek, Oreg., discharge

measurement of................... 262

Crow Creek near Fairview, Wyo.......... 45

Cruzen Canal at Lake Fork, Idaho....... 187

Data, accuracy of...................... 5

explanation of....................... 2-4

Deadwood Reservoir near Lowman, Idaho.. 175 

Deadwood River below Deadwood Reservoir, near Lowman, Idaho......... 176

near Lowman, Idaho................... 177

Deer Creek, Nev., discharge measurement of.......................... 262

Downey, Idaho, Birch Creek-near........ 72

Driggs, Idaho, Horseshoe Creek near.... 66

Teton Creek near...................... 65

Dubois, Idaho, Beaver Creek at......... 94

Drewsey, Oreg., Malheur River near..... 161

Dry Creek, Idaho, discharge measurements of......................... 261

Elk City, Idaho, South Fork Clearwater 

River near.......................

Emmett, Idaho, Payette River near......

Fairview, Wyo., Crow Creek near........

Fall Creek near Anderson Ranch Dam,

Idaho............................

Fall River, diversions from.............57

near Chester, Idaho..................

near Squirrel, Idaho.................

Featherville, Idaho, Boise River near. 

Fish hatchery diversion at McCall,

Idaho............................

Floods, special reports on.............

French Creek, Idaho, Salmon River near. 

Fruitvale, Idaho, West Fork Weiser

River near.......................

Garden Valley, Idaho, South Fork

Payette River near...............

Gold Creek, Nev., Owyhee River near....

Wild Horse Reservoir near............

Gooding, Idaho, Big Wood River at......

Big Wood River near..................

Thorn Creek spillway near............

Gooding Canal at Milner, Idaho.........

Goose Creek above Trapper Creek, near 

Oakley, Idaho....................

Grand View, Idaho, Bruneau River near.. 

Grande Ronde River at La Grande', Oreg..

at Rondowa, Oreg....................240-

at Troy, Oreg........................

near Hilgard, Oreg...................

Grande Ronde River Basin, Oreg., gagingstation records in..............238-

Grangeville, Idaho, South Fork Clearwater River near...............

Grassy Lake, Idaho, contents of......

Gros Ventre River at Kelly, Wyo......

256

172

45

156

,59

60

58

151

183

11

221

193

Gumboot Creek, Oreg., Imnaha River 

above. ......................

Page 

213

Hagerman, Idaho, King Hill Canal near.. 129 

Snake River near..................... 31

Hailey, Idaho, Big Wood River at......111-112

119 

210 

17 

53 

50 

diversions from...................... 52,54

Big Wood Slough at. 

Haines, Oreg., Powder River near. 

Heise, Idaho, Snake River near.........

Henrys Fork at St. Anthony, Idaho......

at Warm River, Idaho.

near Ashton, Idaho.

near Island Park, Idaho...........

near Lake, Idaho..................

near Rexburg, Idaho...............

Henrys Fork Basin, Idaho, discharge 

measurement in.

51

49

47

55

261 

gaging-station records in............ "47-68

smaller reservoirs in................ 56

Henrys Lake, Idaho, contents of........ 56

Hereford, Oreg., Burnt River near...... 208

Hilgard, Oreg., Grande Ronde River near 238 

Hoback River near Jackson, Wyo......... 40

Hope, Oreg., Malheur River near........ 163

Horseshoe Bend, Idaho, Payette River

near................ ............ 171

Horseshoe Creek near Driggs, Idalro..... 66

Hot Springs, Idaho, Bruneau River near. 133 

Howe, Idaho, Blaine County Investment

Co.'s canal near................. 99

Little Lost River* near............... 98

Hurricane Creek near Joseph, Oreg...... 247

Idaho Power Co. canal, Idaho, discharge

measurement of. .... ........... 263

Imbler, Oreg., Indian Creek near....... 244

Imnaha River above Gumboot Creek, Oreg. 213 

at Imnaha, Oreg...................... 214

discharge measurements of............ 263

Imnaha River Basin, Oreg., gagingstation records in..............213-214

Indian Creek near Imbler, Oreg......... 244

Indian Valley, Idaho, Little Weiser

River near....................... 200

Island Park, Idaho, Henrys Fork near... 49 

Island Park Reservoir near........... 48

Island Park Reservoir near Island Park 

Idaho...........................

Jacks Creek near Bruneau, Idaho..:.....

Jackson, Wyo., Hoback River near.......

Jackson Lake at Moran, Wyo..........

Jarbldge River, Idaho, discharge

measuremsnts of..................

East Fork, Idaho, discharge measurement of........ *.................

Johnson Creek (Salmon River Basin) at 

Yellow Pine, Idaho...............

near Landmark ranger station, Idaho.. 

Johnson Creek '(Weiser River Basin)

below Johnson Park, near Council, 

Idaho............................

discharge measurement of.............

Johnson Park Creek, Idaho, discharge

measurements of..................

Jordan Creek above Lone Tree Creek,

near Jordan Valley, Oreg.........

Joseph, Oreg., East Fork Wallowa River 

near.............................

Hurricane Creek near........... .....

Wallowa Falls power r plant tailrace 

near............'.................

Kamiah," Idaho, Clearwater River at.....

(elly, Wyo., Gros Ventre River at......

Cendrick, Idaho, Potlatch Creek at.....

tetehum, Idaho, Warm Springs Creek near 

Cilgore, Idaho, Camas Creek near.......

Cimberly, Idaho, Snake River near......

King Hill, Idaho, Snake River at....... 3

Cing Hill Canal near Hagerman, Idaho.,. 

Cnox, Idaho, South Fork Salmon River

near.............................

169

136

140

116

117

123

82

77

134

239

241

242

238

249.

La Grande, Oreg., Grande Ronde Fiver at 

257 Lake, Idaho, Henrys Fork near.

56 Lake Fork, Idaho, Cruzen Canal at.

39 Lake Fork. See Payette River, Lake Fork.

48

135

40

14

262

262

234

233

197

263

263

142

245

247

246

253

39

260

118

91

, 32

129

232

239

47

187
INDEX 267

Lake Fork Reservoir near McCall, Idaho. 185 

Lake Irrigation District Canal near

McCall, Idaho.................... 187

Lake Lowell near Caldwell, Idaho....... 160

Lake Walcott near Minidoka, Idaho...... 25

Landmark ranger station, Idaho, Johnson

Creek near....................... 233

Lenox, Idaho, South Fork Boise River

near............................. 154

Lime Creek near Bennett, Idaho......... 155

Lincoln Canal near Richfield, Idaho.... 121

near Shoshone, Idaho................. 122

Little Camas Canal at heading, near

Bennett, Idaho................... 157

Little Cottonwood Creek, Nev., discharge

measurement of............. ..... 262

Little Lost River- near Howe, Idaho..... 98

Little Lost River Basin, Idaho, gagingstation records in............... 98-99

Little Weiser River near Indian Valley

Idaho............................ 200

Little Wood River at Campbell Ranch,

near Carey, Idaho................ 124

at Shoshone, Idaho................... 127

near Carey, Idaho.................... 125

near Richfield, Idaho................ 126

Lochsa River near Lowell, Idaho........ 255

Lost Creek near Tamarack, Idaho........ 194

Lost Valley Reservoir near Tamarack,

Idaho.......................... 193-194

Lostine River near Lostine, Oreg....... 248

Lowell, Idaho, Lochsa River near....... 855

Selway River near...................251,252

Lowman,. Idaho, Clear Creek at.......... 174

Deadwood Reservoir near.............. 175

Deadwood River near................. 176,177

South Pork Payette River at.......... 168

McCall, Idaho, fish hatchery diversion

at.... ........................... 183

Lake Fork Payette River near........184,186

Lake Fork Reservoir near............. 185

Lake Irrigation District Canal near.. 187 

North Pork Payette River at.......... 179

Payette Lake at...................... 178

IfcDonald Creek, Nev., discharge

measurement of...................__ 262

Mackay, Idaho, Big Lost River..... _ __j

near.....................102,103-104,106

Mackay Reservoir near................ 105

Sharp ditch near..................... 110

Warm Spring Creek near..............108,109

Mackay Reservoir near Mackay, Idaho.... 105

Magic Reservoir near Richfield, Idaho.. 114 

Malheur River-below Warmsprings Reservoir, near Riverside, Oreg...".... 162

near Drewsey, Oreg................... 161

neap Hope, Oreg...................... 163

North Fork, above Agency Valley

Reservoir, near Beulah, Oreg..... 165

North Fork, at Beulah, Oreg.......... 166

Malheur River Basin, Oreg., discharge

measurements in.................. 262

gaging-station records in...........161-167

reservoirs in........................ 164

Mann Creek near Weiser, Idaho.......... 205

Mason Creek, Nev., discharge measurement of.......................... 262

May, Idaho, Pahsimeroi River near...... 227

Meadow Creek, Nev., discharge measurements of.................... .... 262

Medicine Lodge Creek at Ellis Ranch,

near Argora, Idaho ............... 96

near Small, Idaho.................... 97

Mesa, Idaho, Bacon Creek near.......... 198

Mesa Orchards Canal near............. 196

Middle Fork Weiser River near........ 195

Mesa Orchards Canal near Mesa, Idaho... 196 

Midvale, Idaho, Crane Creek near....... 202

Crane Creek Reservoir near........... 201

Miller Creek, Nev., discharge measurement of.......................... 262

Milner, Idaho, Goading Canal at........ 82

Milner low-lift canal near........... 81

North Side Twin Falls Canal at....... 83

P. A . lateral near................... 80

Snake River at....................... 27

South Side Twin Falls Canal at....... 84

Milner low-lift canal near Milner,

Idaho............................ 81

Page 

Minidoka, Idaho, Lake Walcott near..... 25

North Side Minidoka Canal near....... 75

Snake River near..................... 26

South Side Minidoka Canal near....... 76

Monroe Creek above Sheep Creek, near

Weiser, Idaho.................... 206

Moore Creek near Arrowrock, Idaho...... 158

Moran, Wyo., Buffalo Fork near......... 38

Jackson Lake at...................... 14

Pacific Creek near................... 37

Snake River at....................... 15

Mountain City, Nev., Owyhee Rive" at... 137 

Mountain Home, Idaho, Mountain Hime

cooperative canal near........... 131

Mountain Hone feeder canal near...... 130

Mountain Home cooperative canal near

Mountain Home, Idaho............. 131

Mountain Home feeder canal near Mountain Home, Idaho................. 130

discharge measurements of............ 256

Mud Creek near Tamarack, Idaho......... 237

Mud Lake near Terreton, Idaho.......... 90

Mud Lake Basin, Idaho, gaging-station

records in....................... 90-97

Murphy, Idaho, Snake River near........ 3, 33

Naf, Idaho, Clear Creek near........... 74

Neeley, Idaho, Snake River at.......... 24

New York Canal near Barber, Idaho...... 159

North Powder, Oreg., Wolf Creek near... 212 

North Side Minidoka Canal near Mtnidoka, Idaho...................... 75

North Side Twin Falls Canal at Milner,

Idaho............................ 83

Notus, Idaho, Boise River at........... 149

Nyssa, Oreg., Owyhee Reservoir n<sar.... 140

Oakley, Idaho, Goose Creek near........ 77

Oakley Reservoir near................ 78

Trapper Creek near...................' 79

Oakley Reservoir near Oakley, Id^ho.... 78

Obsidian, Idaho, Alturas Lake Creek

near............................. ' 223

Salmon River near.................... 215

Owyhee Dam, Oreg., Owyhee River below.. 141

Owyhee Reservoir, Oreg., Owyhee River

above............................ 139

at Owyhee Dam, near Nyssa, Oreg...... 140

Owyhee River above China diversion dam,

near Owyhee, Nev................. 138

above Owyhee Reservoir, Oreg......... 139

at Mountain City, Nev................ 137

below Owyhee Dam, Oreg............... 141

discharge measurement of............. 262

near Gold Creek, Nev................. 136

Owyhee River Basin, Nev.-Oreg., discharge measurements in........... 262

gaging-station records in...........136-142

Oxbow, Oreg., Snake River at........... 35

P. A. lateral near Milner, Idaho....... 80

Packsaddle Creek near Tetonia, Idaho... 67 

Pacific Creek near Moran, Wyo.......... 37

Pahsimeroi River near May, Idaho....... 227

Panther Creek near Shoup, Idaho........ 228

Payette Lake at McCall, Idaho.......... 178

Payette River, Lake Fork, above Jumbo

Creek, near McCall, Idaho........ 184

below Lake Irrigation District Canal,

near McCall, Idaho............... 186

near Emmett, Idaho................... 172

near Horseshoe Bend, Idaho........... 171

near Payette, Idaho.................. 173

North Fork, at Cascade, Idaho........ 180

at McCall, Idaho................... 179

near Banks, Idaho.................. 182

near Smiths Ferry, Idaho........... 181

South Fork, at Lowman, Idaho......... 168

near Banks, Idaho...^ ^............ 170

near Garden Valley, Idaho.......... 169

Payette River Basin, Idaho, discharge

measurement in................... 263

gaging-station records in...........168-187

Picabo, Idaho, Silver Creek near....... 128

Pine Creek near Cambridge, Idahc....... 199

Poaatello, Idaho, Portneuf River at.... 71

Portneuf River at Pocatello, Idaho..... 71

at Topaz, Idaho...................... 70

tributaries and diversions

between.......................... 73
268 INDEX

Page

Portneuf River Basin, Idaho, gagingstation records in......... ..... 70-72

Potlatch Creek at Kendrick, Idaho...... 260

Powder River at Salisbury, Oreg........ 209

near Haines, Oreg.................... 210

near Robinette, Oreg................. 211

Powder River Basin, Oreg., gagingstation records in..............209-212

Publications on stream flow by

Geological Survey................5-9,11

by State agencies .................... 9-10

Raft River at Peterson Ranch, near

near Bridge, Idaho................ 73

Rexburg, Idaho, Henrys Fork near....... 55

Richfield, Idaho, Big Wood River near.. 115 

Lincoln Canal near................... 121

Little Wood River near............... 126

Magic Reservoir near................. 114

Riverside, Oreg., Malhear River near... 162 

Robinette, Oreg., Powder River near.... 211

Rock Creek, Idaho, discharge measurement of.......................... 261

Rock Creek near Rock Creek, Idaho...... 85

near Twin Falls, Idaho............... 86

Rogerson, Idaho, Salmon River Canal Co.

canal near....................... 89

Salmon Kiver Canal Co. reservoir near 88

Rondowa, Oreg., Grande Ronde River at.240-241 

Runoff in inches, definition of........ 1

St. Anthony, Idaho, Henrys Pork at....

Teton River near....................

Salisbury, Oreg., Powder River at.....

Salmon Falls Creek, Idaho, discharge

measurements of..................

near San Jac into, Nev...............

Salmon Falls Creek Basin, Idaho, discharge measurements in.

63

209

261

87

......... 261

gaging-station records in............ 87-89

Salmon River at Salmon, Idaho..........

at Whitebird, Idaho..................

below Valley Creek, at Stanley, Idaho

below Yankee Fork, near Clayton,

Idaho............................

Middle Fork,*near Cape Horn, Idaho...

near Challis, Idaho..................

near French Creek, Xdaho.............

near Obsidian, Idaho.................

near Shoup, Idaho. ....................

South Fork, near Knox, Idaho.......'..

Yankee Fork, near Clayton, Idaho..... 

Salmon River Basin, Idaho, discharge

measurements in.................. 263

gaging-station records in...........215-237

Salmon River Canal Co. canal near

219

222

216

217

229

218

221

215

220

232

Rogerson, Idaho. 

Salmon River Canal Co. reservoir near

Rogerson, Idaho..................

Salt River at Wyoming-Idaho State line, 

near Smoot, Wyo.

tributaries above.................... 37-40

Salt River Basin, Wyo., gaging-station

records in....................... 41-46

San Jacinto, Nev., Salmon Palls Creek

near............................. 87

Secesh River, Idaho, discharge measurement of................. i........

near Burgdorf, Idaho................. 235

Second-feet per square mile, definition

of............................... 1

Second-foot, definition of............. 1

Second-foot-day, definition of......... 1

Selway River above Meadow Creek, near

Lowell, Idaho.................... 251

near Lowell, Idaho................... 252

Seventy-Six Creek, Nev., discharge

measurement of................... 262

Sharp ditch near Mackay, Idaho......... 110

Shelley, Idaho, Snake River near....... 19

Shoshone, Idaho, Lincoln Canal near.... 122

Little Wood River at................. 127

Shoup, Idaho, Panther Creak near....... 228

Salmon River near.................... 220

Silver Creek near Picabo, Idaho........ 128

Small, Idaho, Medicine Lodge Creek near 97 

Smiths Ferry, Idaho, North Fork Payette

River near....................... 181

Smoot, Wyo., CottonwoDd Creek near..... 43

Page 

Smoot, Wyo., Salt River near........... 41

Snake River at Buhl, Idaho............. 30

at King Hill, Idaho.................. 3, 32

at Milner, Idaho..................... 27

at Moran, Wyo........................ 15

at Neeley, Idaho..................... 24

at Oxbow, Oreg....................... 35

at Weiser, Idaho..................... 34

below Greys River, at Alpine, Idaho.. 16 

below Lower Salmon Falls, near

Hagerman, Idaho.................. 31

discharge measurements of............ 261

diversions from...................... 18,20

near Blackfoot, Idaho................ 21

near Clarkston, Wash................. 3, 36

near He ise, Idaho.................... 17

near Kimberly, Idaho................. 28

near Minidoka, Idaho................. 26

near Murphy, Idaho................... 3, 33

near Shelley, Idaho.................. 19

near Twin Falls, Idaho............... 29

Snake River main stem, Idaho-Was 1!.,

discharge measurements on........ 261

gaging-station records on............ 14-36

South Side Minidoka Canal near

Minidoka, Idaho.................. 76

South Side Twin Falls Canal at Milner, 

Idaho

Spalding, Idaho, Clearwater Rive-1 at... 

Spencer, Idaho, Beaver Creek at........

Spring Creek near Tetonia, Idaho.......

Squirrel, Idaho, Fall River near.......

Stage-discharge relation, definition of

84 

254 

93 

68 

58 

1 

Stanley, Idaho, Salmon River at........ 216

Valley Creek at...................... 224

Starkey, Idaho, Weiser River at........ 189

Stump Creek near Auburn, Wyo........... 46

Swift Creek near Afton, Wyo............ 44

Tamarack, Idaho, Lost Creek near......._ 194

Lost Valley Reservoir near..........193-194

Mud Creek near """ 

Weiser River at. 

Terms, definition of.

Terreton, Idaho, Mud Lake near. 

Teton Creek near Driggs, Idaho. 

Teton River, diversions from...

near St. Anthony, Idaho......

near Tetonia, Idaho..........

near Victor, Idaho.

Tetonia, Idaho, Packsaddle Creek near.. 

Spring Creek near....................

Teton River near.

Thorn Creek spillway near flooding,

Idaho.

Topaz, Idaho, Portneuf River at. 

89|Trapper Creek near Oakley, Idaho.

Troy, Oreg., Grande Ronde River at...., 

88 Twin Falls, Idaho, Rock Creek near..... 

42 Snake River near. 

41 Twin Springs, Idaho, Boise River near., 

Middle Fork Boise River near.........

Union, Oreg., Catherine Creek neer....

237

188

1

90

65

64

63

62

61

67

68

62

123

70

79

242

86

29

143

150

243

Unity Reservoir near Unity, Oreg....... 207

Vale, Oreg., Bully Creek near. 

263 Valley Creek at Stanley, Idaho.

Van Cleve ditch, Oreg 1. , discharge

measurements of.

Victor, Idaho, Teton River near.

167

224

263

61

Wallowa, Oreg., Bear Creek near........ 249

Wallowa Falls power-plant tailrace

near Joseph, Oreg................ 246

Wallow River, East Fork, near Joseph,

Oreg............................

Warm Riuer, Idaho, Henrys Fork at.

Warm Spring Creek (Big Lost River 

Basin) east channel of, near 

Mackay, Idaho....................

west channel of, near Mackay, Idaho..

Warm Springs Creek at Guyer Hot Springs,

245

50

near Ketchum, Idaho.

Warmsprings Creek, Oreg., discharge

measurements of.

armsprings Reservoir, Oreg., contents

of.

arren Creek, Idaho, discharge measurements ............................

108

109

118

262

263
INDEX 269

Warren Creek near Warren, Idaho........

Weiser, Idaho, Crane Creek near........

Mann Creek near......................

Monroe Creek near.'...................

Snake River at.......................

Weiser Irrigation District Canal

near.............................

Weiser River near. ...................

Weiser Irrigation District Canal near 

Weiser, Idaho....................

Weiser River above Crane Creek, near

Weiser, Idaho....................

at Starkey, Idaho....................

at Tamarack, Idaho...................

Middle Fork, near Mesa, Idaho........

near Cambridge, Idaho................

near Counc il. Idaho..................

West Pork, near Fruitvale, Idaho..... 

Weiser River Basin, Idaho, discharge

measurements in..................

gaging-station records in...........188

Page 

236 

203 

205 

206 

34

204 

192

204

192 

189 

188 

195 

191 

190 

193

263 

-206

Wickahoney Creek near Bruneau, Idaho... 

Wild Horse Reservoir near Gold Creek,

Willow Creek, Ne\?., discharge measureWinter Camp Ranch, Idaho, Bruneau River

Wolf Creek near North Powder,

Yankee Fork. See Salmon River, Yankee 

Fork. 

Yellow Pine, Idaho, Johnson Cre3k at...

Zollinger ditch, Idaho, discharge

Page 

222 

135

140 

262 

132 

212

12-13

1

234 

261

O