Surface Water Supply 

of the United States 

1950

Part 13. Snake River Basin

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1183

Prepared in cooperation with the States 

of Idaho, Oregon, Utah, Washington, 

and Wyoming1 and other agencies

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

Douglas McKay, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

Washington 25, D. G. - 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)

F. M. Bell______________________________Denver, Colo. 

Lynn Crandall_______________________Idaho Falls, Idaho 

T. R. Newell______________________________Boise, Idaho 

K. N. Phillips___________________________Portland, Oreg. 

F. M. Veatch__________________________Tacoma, Wash. 

M. T. Wilson______________________Salt Lake City, Utah
Scope of work......................................................................... 1

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

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

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

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

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

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

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

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

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

Jackson Lake at Moran, ¥yo........................................................ 14

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

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

Snake River near Irwin, Idahu..................................................... 17

Snake River near Heise, Idaho..................................................... 18

Diversions from Snake River between Heise and Shelley gaging stations, Idaho...... 19

Snake Elver near Shelley, Idaho................................................... 20

Diversions from Snake River between Shelley and Blackfoot gaging stations, Idaho.. 21

Snake River near Blackfoot, Idaho................................................. 22

American Falls Reservoir at American Falls, Idaho................................. 23

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

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

Snake River near Minidoka, Idaho.................................................. 26

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

Snake River near Kimberly, Idaho.................................................. 28

Snake River near Buhl, Idaho...................................................... 29

Snake River below Lower Salmon Falls, near Hagerman, Idaho........................ 30

Snake River at King Hill, Idaho................................................... 31

Snake River near Murphy, Idaho.................................................... 32

Snake River at Weiser, Idaho...................................................... 33

Snake River at Oxbow, Oreg.

Tributaries above Salt River........................................................ 36

Pacific Creek near Moran, Wyo..................................................... 36

Gros Ventre River at Kelly, Wyo................................................... 38

Hoback River near Jackson, Wyo.................................................... 39

Salt River Basin.................................................................... 40

Salt River near Smoot, Wyo........................................................ 40

Salt River at Wyoming-Idaho State line............................................ 41

Cottonwood Creek near Smoot, Wyo.................................................. 42

Swift Creek near Afton, Wyo....................................................... 43

Henrys Fork Basin................................................................... 44

Henrys Fork near Lake, Idaho ...................................................... 44

Island Park Reservoir near Island Park, Idaho..................................... 15

Henrys Fork near Island Park, Idaho............................................... 46

Henrys Fork at Warm River, Idaho.................................................. 47

Henrys Fork near Ashton, Idaho.................................................... 48

Diversions from Henrys Fork between Ashton and St. Anthony gaging stations, Idaho 49

Henrys Fork at St. Anthony, Idaho................................................. 50

Diversions from Henrys Fork between St. Anthony and Rexburg gaging stations, Idaho 51

Henrys Fork near Rexburg, Idaho................................................... 52

Smaller reservoirs in Henrys Fork Basin........................................... 53

Diversions from Fall River above gaging station near Squirrel, Idaho.............. 54

Fall River near Squirrel, Idaho................................................... 55

Diversions from Fall River between Squirrel and Chester gaging stations, Idaho.... 56

Pall River near Chester, Idaho.................................................... 56

Teton River near Victor, Idaho.................................................... 57

Teton River near Tetonia, Idaho................................................... 58

Teton River near St. Anthony, Idaho............................................... 59

Diversions from Teton River between St. Anthony gaging station and mouth, Idaho... 60

Teton Creek near Driggs, Idaho.................................................... 61

Horseshoe Creek near Driggs , Idaho................................................ 62

Paeksaddle Creek near Tetonia, Idaho.............................................. 63

Spring Creek near Tetonia, Idaho .................................................. 64

Blackfoot River Basin............................................................... 65

Blackfoot River near Blackfoot, Idaho............................................. 65

P^rtneuf River Basin................................................................ 66

Portneuf River at Topaz , Idaho.................................................... 66

Portneuf River at Pocatello, Idaho................................................ 67

Tributaries and diversions between Portneuf River and Salmon Falls Creek............ 68

Raft River at Peterson Ranch, near Bridge, Idaho.................................. 68

Clear Creek near Naf, Idaho....................................................... 69

North Side Minidoka Canal near Minidoka, Idaho.................................... 70

South Side Minidoka Canal near Minidoka, Idaho.................................... 71

Goose Creek above Trapper Creek, near Oakley, Idaho............................... 72

Oakley Reservoir near Oakley, Idaho ............................................... 73

Trapper Creek near Oakley, Idaho.................................................. 74

V
VI CONTENTS

Gaging-station records Continued. Page 

Tributaries and diversions between Portneuf River and Salmon Palls Creek Continued

P. A. lateral near Milner, Idaho................................................. 75

Milner low-lift canal near Milner, Idaho......................................... 76

Gooding Canal at Milner, Idaho ................................................... 77

North Side Twin Palls Canal at Milner, Idaho..................................... 78

South Side Twin Palls Canal at Milner, Idaho..................................... 79

Devils Washbowl Springs near Kimberly, Idaho..................................... 80

Rock Creek near Rock Creek, Idaho................................................ 82

Box Canyon Springs near Wendell, Idaho........................................... 83

Salmon Palls Creek Basin........................................................... 84

Salmon Falls Creek above upper Vineyard ditch, near Contact, Nev................. 84

Salmon Falls Creek near San Jacinto, Nev......................................... 85

Salmon River Canal Co. reservoir near Rogerson, Idaho............................ 86

Salmon River Canal Co. canal near Rogerson, Idaho................................ 87

Mud Lake-Lost River Basin.......................................................... 88

Mud Lake Basin................................................................... 88

Mud Lake near Terreton, Idaho.................................................. 88

Cams Creek at Eighteenmile shearing corral, near Kilgore, Idaho............... 89

Cams Creek at Camas, Idaho.................................................... 90

Beaver Creek at Spencer, Idaho................................................. 91

Beaver Creek at Dubois, Idaho.................................................. 92

Beaver Creek at Camas, Idaho................................................... 93

Medicine Lodge Creek at Ellis Rancfi, near Argora, Idaho. ....................... 94

Little Lost River Basin.......................................................... 95

Little Lost River near Howe, Idaho............................................. 95

Blaine County Investment Co.'a canal near Howe, Idaho.......................... 96

Big Lost River Basin............................................................. 97

Big Lost River at Wild Horse, near Chilly, Idaho............................... 97

Big Lost River at Howell Ranch, near Chilly, Idaho............................. 98

Big Lost River (east channel) above Maekay Reservoir, near Mackay, Idaho....... 99

Big Lost River (west channel) above Mackay Reservoir, near Maekay, Idaho .. . 100

Mackay Keservoir near Maekay, Idaho............................................ 102

Big Lost River below Mackay Reservoir, near Mackay, Idaho...................... 103

Big Lost River near Arco, Idaho................................................ 104

Warm Spring Creek (east channel) near Maekay, Idaho............................ 105

Warm Spring Creek (west channel) near Mackay, Idaho............................ 106

Sharp ditch near Mackay, Idaho................................................. 107

Riley Creek Basin.................................................................. 108

Riley Creek Springs near Hagerman, Idaho......................................... 108

Big Wood River Basin............................................................... 109

Big Wood River near Ketehum, Idaho............................................... 109

Big Wood River at Hailey, Idaho.................................................. 110

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

Big Wood River near Bellevue, Idaho.............................................. 112

Magic Reservoir near Richfield, Idaho............................................ 113

Big Wood River below Magic Dam, near Richfield, Idaho............................ 114

Big Wood River near Gooding, Idaho............................................... 115

Warm Springs Creek at Guyer Hot Springs, near Ketehum, Idaho..................... 116

Big Wood Slough at Hailey, Idaho................................................. 117

Camas Creek near Blaine, Idaho................................................... 118

Little Wood River at Campbell Ranch, near Carejr, Idaho........................... 119

Little Wood River near Carey, Idaho.............................................. 120

Little Wood River near Richfield , Idaho.......................................... 121

Little Wood River at Shoshone , Idaho............................................. 122

Silver Creek near Picabo, Idaho .................................................. 123

King Hill Canal near Hagerman, Idaho............................................. 124

Canyon Creek Basin................................................................. 125

Mountain Home feeder canal near Mountain Home, Idaho............................. 125

Bruneau River Basin................................................................ 126

Bruneau River near Winter Camp Ranch, Idaho...................................... 126

Bruneau River near Hot Spring, Idaho............................................. 12.7

East Pork Bruneau River near Hot Spring, Idaho................................... 128

Owyhee River Basin................................................................. 129

Wild Horse Reservoir near Gold Creek, Nev........................................ 129

Owyhee River near Gold Creek, Nev................................................ 130

Owyhee River above China diversion dam, near Owyhee, Nev......................... 131

Owyhee River near Rome, Oreg..................................................... 132

Owyhee River above Owyhee Reservoir, Oreg........................................ 133

Owyhee Reservoir at Owyhee Dam, near Nyssa, Oreg................................. 134

Owyhee River below Owyhee Dam, Oreg.............................................. 135

Jordan Creek above Lone Tree Creek, near Jordan Valley, Oreg..................... 136

Crooked Creek near Rome, Oreg.................................................... 137

Boise River Basin.................................................................. 138

Boise River near Twin Springs, Idaho............................................. 138

Arrowroek Reservoir at Arrowrock, Idaho.......................................... 139

Boise River at Dowling Ranch, near Arrowrock, Idaho.............................. 140

Diversions from Boise River between Dowling Ranch and Boise gaging stations, Idaho 141

Boise River at Boise, Idaho ...................................................... 142

Diversions from Boise River between Boise and Notus gaging stations, Idaho....... 143

Boise River at Notus, Idaho...................................................... 144

Middle Pork Boise River near Twin Springs, Idaho................................. 145

South Pork Boise River near Featherville, Idaho.................................. 146

Anderson Ranch Reservoir at Anderson Ranch Dam, Idaho............................ 147
CONTENTS VII

Gaging station records Continued

Boise River Basin Continued Page

South Fork Boise River at Anderson Ranch Dam, Idaho.............................. 148

Lime Creek near Bennett, Idaho................................................... 149

Fall Creek near Anderson Ranch Dam, Idaho........................................ 150

Little Camas Canal at heading, near Bennett, Idaho............................... 151

Moore Creek near Arrowrock, Idaho................................................ 152

Lake Lowell near Caldwell, Idaho................................................. 153

Malheur River Basin................................................................ 154

Malheur River near Drewsey, Oreg................................................. 154

Malheur River below Warmsprings Reservoir, near Riverside, Oreg.................. 155

Malheur River at Little Valley, near Hope, Oreg.................................. 156

Reservoirs in Malheur River Basin, Oreg.......................................... 157

North Fork Malheur River above Agency Valley Reservoir, near Beulah, Oreg........ 158

North Fork Malheur River at Beulah, Oreg......................................... 159

Bully Creek near Vale, Oreg...................................................... 160

Payette River Basin................................................................ 162

South Fork Payette River at Lowman, Idaho........................................ 162

South Fork Payette River near Garden Valley, Idaho............................... 163

South Fork Payette River near Banks, Idaho....................................... 164

Payette River near Horseshoe Bend, Idaho......................................... 165

Payette River near Emmett, Idaho................................................. 166

Payette River near Payette, Idaho................................................ 167

Deadwood Reservoir near Lowman, Idaho............................................ 168

Deadwood River below Deadwood Reservoir, near Lowman, Idaho...................... 169

Deadwood River near Lowman, Idaho................................................ 170

Payette Lake at McCall, Idaho.................................................... 171

North Fork Payette River at KcCall, Idaho........................................ 172

Cascade Reservoir at Cascade , Idaho.............................................. 173

North Fork Payette River at Cascade, Idaho....................................... 174

North Fork Payette River near Banks, Idaho....................................... 175

Fish hatchery diversion at McCall, Idaho......................................... 176

Lake Fork Payette River above Jumbo Creek, near McCall, Idaho.................... 177

Lake Fork Reservoir near McCall, Idaho........................................... 178

Lake Fork Payette River below Lake Irrigation District Canal, near McCall, Idaho. 179

Lake Irrigation District Canal near McCall, Idaho................................ 180

Weiser River Basin................................................................. 181

Weiser River at Tamarack, Idaho.................................................. 181

Weiser River near Council, Idaho................................................. 182

Weiser River near Cambridge, Idaho ............................................... 183

Weiser River above Crane Creek, near Weiser. Idaho............................... 184

Lost Valley Reservoir near Tamarack, Idaho....................................... 185

Lost Creek near Tamarack, Idaho.................................................. 186

Mesa Orchards Canal near Mesa, Idaho............................................. 187

Pine Creek near' Cambridge, Idaho ................................................. 188

Little Weiser River near Indian Valley, Idaho.................................... 189

Crane Creek Reservoir near Midvale, Idaho........................................ 190

Crane Creek near Midvale, Idaho.................................................. 191

Crane Creek at mouth, near Weiser, Idaho......................................... 192

Weiser Irrigation District Canal near Weiser, Idaho.............................. 193

Mann Creek near Weiser, Idaho.................................................... 194

Burnt River Basin.................................................................. 195

Unity Reservoir near Unity, Oreg................................................. 195

Burnt River near Hereford, Oreg.................................................. 196

Powder River Basin................................................................. 197

Powder River at Salisbury, Oreg.................................................. 197

Powder River near Haines, Oreg................................................... 198

Powder River near Robinette, Oreg................................................ 199

 Wolf Creek near North Powder, Oreg............................................... 200

Imnaha River Basin................................................................. 201

Imnaha River above Gumboot Creek, Oreg........................................... 201

Imnaha River at Imnaha, Oreg..................................................... 202

Salmon River Basin................................................................. 203

Salmon River near Obsidian, Idaho................................................ 203

Salmon River below Valley Creek, at Stanley, Idaho............................... 204

Salmon River below Yankee Fork, near Clayton, Idaho.............................. 205

Salmon River near Challis , Idaho................................................. 206

Salmon River at Salmon, Idaho.................................................... 207

Salmon River near Shoup, Idaho................................................... 208

Salmon River near French Creek, Idaho............................................ 209

Salmon River at Whitebird, Idaho................................................. 210

Alturas Lake Creek near Obsidian, Idaho.......................................... 211

Valley Creek at Stanley, Idaho................................................... 212

Challis Creek near Challis, Idaho................................................ 213

Pahsimeroi River near May, Idaho................................................. 214

Panther Creek near Shoup, Idaho.................................................. 215

Middle Fork Salmon River near Cape Horn, Idaho................................... 216

Bear Valley Creek near Cape Horn, Idaho.......................................... 217

Big Creek near Big Creek, Idaho.................................................. 218

South Fork Salmon River near Knox, Idaho......................................... 219

Johnson Creek at Yellow Pine, Idaho.............................................. 220

Secesh River near Burgdorf, Idaho ................................................ 221

Mud Creek near Tamarack, Idaho................................................... 222

Grande Ronde River Basin........................................................... 223

Grande Ronde River near Hilgard, Oreg........................... . ' 223
VIII

Gaging-station records.--Continued

Grande Ronde River Basin--Continued Page

Grande Ronde River at La Grande, Oreg............................................ 224

Grande Ronde River at Rondowa , Oreg.............................................. 225

Grande Ronde River at Troy, Oreg................................................. 226

Catherine Creek near Union, Oreg................................................. 227

Indian Creek near Imbler, Oreg................................................... 228

East Fork Wallowa River near Joseph, Oreg........................................ 229

Wallowa Falls power-plant tailraee near Joseph, Oreg............................. 230

Hurricane Creek near Joseph, Oreg................................................ 231

Lostine River near Lostine, Oreg................................................. 232

Bear Creek near Wallowa, Oreg... ................................................ 233

Asotin Creek Basin................................................................. 234

Asotin Creek near Asotin, Wash................................................... 234

Clearwater River Basin............................................................. 235

Selway River near LI well , Idaho.................................................. 235

Clearwater River at Kamiah, Idaho................................................ 236

Clearwater River at Spaiding, Idaho .............................................. 237

Lochsa River near Lowell , Idaho......................................... ........ 238

South Pork Clearwater River near Elk City, Idaho........................ ........ 239

South Pork Clearwater River near Grangeville, Idaho.............................. 240

North Pork Clearwater River at Bungalow ranger station, Idaho.................... 241

North Pork Clearwater River near Ahsahka, Idaho.................................. 242

Potlatch Creek at Kendrick, Idaho................................................ 243

Miscellaneous discharge measurements ................................................ 244

Index................................................................................ 247

ILLUSTRATION

Page 

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

River near Murphy, Idaho; r. Snake River near Clarkston, Wash........... 3
SURFACE WATER SUPPLY OF SNAKE RIVER BASIN, 1950

SCOPE OP WORK

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

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

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

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

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

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

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

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

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

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

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

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

DEFINITION OF TERMS

The units in which stream-flow data are presented in this report and other 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 water flowing per 

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

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

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

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

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

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

with storage for irrigation.

"Second-foot-day" is the volume of water represented by a flow of 1 second-foot for 24 

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

represents a runoff of 0.0372 inch from 1 square mile.

"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.

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

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

1
2 SURFACE WATER SUPPLY, 1950, PART 13

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

precipitation normally would drain by gravity into the river basin above the specified 

point. Figures of drainage area given herein include all closed basins or noncontributing 

areas within the area unless otherwise noted.

EXPLANATION OF DATA

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

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

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

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

meter by the general methods outlined in standard textbooks on the 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 ths 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 3,s affected by ice, the days included in 

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

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

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

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

by a footnote.

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

presented comprise a description of the station, a table showing the 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-STATtON STRUCTURES
4 SURFACE WATER SUPPLY, 1950, 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 daily discharge for the 

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

or other special methods.

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

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

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

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

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

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

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

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

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

under "Remarks."

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

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

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

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

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

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

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

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

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

1933. If there were no daily, monthly, or annual figures of discharge involved in the 

revision, that fact is brought out by notations after the year dates as follows: (M) means 

that only the instantaneous maximum discharge was revised; (m) that only the instantaneous 

minimum was revised; and (P) that only peak discharges were revised. If the drainage area 

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

should be noted that for all stations for which second-feet per square mile and runoff in 

inches are published, a revision of the drainage area necessitates corresponding revision 

of all figures based on the drainage area. Revised figures of second-feet per square mile 

and runoff in inches resulting from a revision of the drainage area only are usually not 

published in the annual series of reports,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

feet per second during the month.

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

discharge for most stations. All independent peaks above the selected base are given. The 

base discharge, which is given in parentheses, is selecteu so that an average of about 

three peaks a year will be presented. Peak discharges are not published for canals, 

ditches, drains, or for any stream for which the peaks are subject to substantial control 

by man.

For most gaging stations on lakes and reservoirs the data presented comprise a descrip- . 

tion of the station and a monthly summary table of stage and contents. For some reservoirs a table showing daily contents or stage is given. A skeleton table of capacity at 

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

but is omitted from succeeding reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of stream-flow data depends primarily on (1) the permanency of the stagedischarge relation or, if the control is unstable,the frequency of discharge measurements 

and (2) the accuracy of observations of stage, measurements of flow, and interpretation of 

records.

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

to be less than 6 percent; "good," less than 10 percent; "fair," less than 15 percent; and 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

the average annual rainfall over the drainage area is less than 20 inches.
6 SURFACE (JATER SUPPLY, 1950, PART 13

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

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

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

the station must first be satisfied.

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

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

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

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

are subject to revision in succeeding water-supply papers.

PUBLICATIONS

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

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

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

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

	sippi River).

3. Ohio River Basin.

4. St. Lawrence River Basin.

5. Hudson Bay and upper Mississippi River Basins.

6. Missouri River Basin.

7. Lower Mississippi River Basin.

8. Western Gulf of Mexico basins.

9. Colorado River Basin.

10. The Great Basin.

11. Pacific slope basins in California.

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

13. Snake River Basin.

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

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

the water resources of the United States may be obtained or consulted as explained below.

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

prices.

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

the United States.

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

of the Geological Survey as follows:

East of the Mississippi River:

Albany, N. Y., 526 Federal Building.

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

Atlanta, Ga., 644 Peachtree Seventh.

Augusta, Maine, 420 Statehouse.

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

Boston, Mass., 939 Post Office Building.

Champaign, 111., 605 South Neil Street.

Charleston, W. Va., 408 Union Building.

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

Chattanooga, Tenn., 442 Post Office Building.

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

Columbia, S. C., 207 Creason Building.

Columbus, Ohio, 1509 Hess Street.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 311 West Washington Street.

Jackson, Miss., Room 1, Fidelity Building.

Knoxville, Tenn., 337 Post Office Building.

Lansing, Mien., 611 Capitol Saving & Loan Building.

Louisville, Ky., 531 Federal Building.

Madison, Wis., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building.

Ocala, Fla., Building 211, Camp Roosevelt.

Pittsburgh, Pa., 515 Plaza Building.

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

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

Trenton, N. J., 228 Federal Building.

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

West of the Missiosippi River:

Austin, Tex., 302 West Fifteenth Street.

Bismarck, N. Dak., 7 Eltinge Building.

Boice, Idaho, 429 Federal Building.

Denver, Colo., Federal Center.

Port Smith, Ark., 6 post Office Building.

Helena, Mcnt., 408 Federal Building.

Honolulu, Hawaii, 225 Federal Building.

Idaho Falls, Idaho, 204 Federal Building.

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

Juneau, Alaska, Sub Port.

Lincoln, Nebr. , 510 Rudge-Guenzel Building.

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

Oklahoma City, Okla., 405 Post Office Building.

Pierre, S. Dak., 207 Federal Building.

Portland, Oreg., 606 Post Office Building.

Rolla, Mo., 211 Ramsey Building.

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

Salt Lake City, Utah, 303 Federal Building.

San Francisco, Calif., 541 Federal Office Building.

Santa Fe, N. Hex., 228 United States Courthouse.

Tacoma, Wash., 207 Federal Building.

Topeka, Kans., 305 Federal Building.

Tucsun, Ariz., 210 Post Office Building.

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

Geological Survey, Washington, D. C.

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

may usually be obtained from the district offices listed above.

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

listed below. In many of these reports records f'ir 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 

llth A 

12th A 

13th A 

14th A 

B 131. . 

16th A, 

B 140. .

18th A, 

W 15...

W 16. .. 

19th A,

W 28. ..

20th A, 

W 35 to 

21st A, 

W 47 to 

22d A, 

W 65, 6 

W 75. ..

pt 

pt 

pt 

pt 

pt

'pt

pt 

pt

Pt 

39 

Pt 

52 

pt. 

6. .

2 

2

3 

2

"2

4 

4

4 

4 

4.

Character of data

Descriptive Information only. 

Monthly discharge and descriptive Information. ..............

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

Descriptive information only. 

Descriptions, measurements, gage heights, ratings, and 

monthly discharge.

Descriptions, measurements, ratings, and monthly discharge.. 

Descriptions, measurements, and gage heights of streams east 

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

Descriptions, measurements, and gage heights of stream west 

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

Descriptions, measurements, ratings, and monthly discharge.

th Mississippi River, and Missouri River and tributaries. 

Measu ements, ratings, and gage heights of streams west of 

th Mississippi River, except Missouri River and tributa ies.

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

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

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

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

Year

1884 to- September 1890. 

1884 to June 30, 1891. 

1884-92. 

1888-93. 

1893-94.

1895.

1896. 

1895-96. 

1897.

1897.

1897. 

1898.

1898.

1898. 

1899. 

1899. 

1900. 

1900. 

1901. 

1901.

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

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

station will, in general, be found in the reports covering the years 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.
Numbers of water-supply papers containing results of stream measurements, 18

Year

1899 a. .................

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

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

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

1913

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

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

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

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

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

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

1927

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

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

1934

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

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

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

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

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

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

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

1550...................:

1 ... , , sg

47, h48 

65, 75 

82 

97

0165, p!66, q!67 

0201, p202, q203 

241 

261

301 

321 

351 

381

431 

451 

471 

501

541 

561 

581 

601

641 

661 

681 

696

711 

726 

741 

756 

781

821 

851 

871 

891

951 

971 

1001 

1031

1051 

1081 

1111 

1141 

1171

b35, 56" 

48 

65, 75 

b82, 83 

b97, 98

q!67, 168 

q203, 204 

242 

262

302 

322 

352 

382

432 

452 

472

502

542 

562 

582

602

642 

662 

682 

697

712 

727 

742 

757 

782

822 

852 

872 

892

952

972 

1002 

1032

1052 

1082 

1112 

1142 

1172

3

36 

48, 149 

65, 75 

83 

98

169 

205 

243 

263

303 

323 

353 

383

433 

453 

473 

503

543

563 

583 

603

643 

663 

683 

698

713 

728 

743 

758 

783 5oT~

823 

853 

873 

893

953 

973 

1003 

1033

1O53 

1083 

1113 m4

36

49 

65, 75 

m82, 83 

97

170 

206 

244 

264

304 

324 

354 

384

434 

454

474 

504

544 

564

584 

604

644

664 

684 

699

714 

729 

744 

759 

784

804 

824 

854 

874 

894

954

974 

1004 

1034

1054 

1084 

1114 m5

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

SOS 

825 

855 

875 

895

925 

955 

975 

1005 

1035

1055 

1085

1115 Hfrl

6

c36, 37 

49, J50 

66, 75 

84 

99

172 

208 

246 

266

286 

306 

326 

356 

386

406 

436 

456 

476 

506

526 

546 

566 

586 

606

626 

646 

666 

686 

701

716 

731 

746 

761 

786

806 

826 

856 

876 

896

926 

956 

976 

1006 

1036

1056 

1086 

1116 

1146 

1176

7

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

827 

857 

877 

897

927 

957 

977 

1007 

1037

1057 

1087 

1117 

1147 

1177

66

1 

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

contained In WSP 39. Monthly discharge f Kings and Kern Rivers and south Pacific slope. tributaries below Pl

for 1899 In 21st Annual Report, part 4. g Rating tables and Index to WSP 47-52

b James River only, 

c Gallatin River.

d Green and Gunnison Rivers and Colorado 

River above Ounnison River.

ntalned In WSP 52. Monthly discharge 

for 1900 in 22d Annual Report, part 4. 

h Schuylklll River to James River. 

1 Scloto River.

k Tributaries of Missis

m Lake Ontario and trib

Lawrence River prope

n Hudson Bay only, 

o New England rivers on
PUBLICATIONS 9

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.

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

Joaquin River Basin.

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

Basin and Pacific Coast river basins.

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

California, Surface water supply of "Sacramento River Basin. .............

California, Surface water supply of San Joaquin River Basin. ............

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.

Colorado, Water resources of. ...........................................

Georgia , Water resources of .............................................

Massachusetts, Surface waters of. .......................................

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

Nebraska, Surface water supply of .......................................

Oregon, Surface water supply of. ........................................

Texas, Summary of records of surface waters of. .........................

Vermont , Surface wat ers of ..............................................

Washington, Summary of hydrometric data in. .............................

Washington, Summary of records of surface waters of .....................

Wisconsin, northern, Water power of .....................................

Wyoming, Surface waters of, and their utilization. ......................

DRAINAGE BASIN

Colorado River (Ariz., Colo. , N. Mex., Utah, Wyo.) and its utilisation..

Colorado River, upper (Colo., Utah), and its utilization. ...............

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

at base stations in.

Colorado River Basin (Arir., Calif., Nov., N. Mex., Utah), Surface waters at stations on tributaries in lower.

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

Great Salt Lake Basin, Water powers of ..................................

Green River (Colo. , Utah, Wyo. ) and its utilization. ....................

Kennebec River Basin (Maine) , Water resources of. .......................

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

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

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

Penobscot River Basin (Maine) , Water resources of. ......................

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

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

St. Mary and Milk Fivers (Mont. , Canada), Water supply of ...............

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

River Basin.

Sevler Lake Basin (Utah), Utilisation of surface water resources of.....

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

Period

1895-1903

1667-1912

1878-1912

1891-1912

1890-1918

1895-1927

1895-1927

1694-1927

1895-1927

1884-1900

1895-1905

1848-1915

1863-1945

1094-1906

1876-1910

1898-193-7

1675-1916

1878-1919

1919-35

1695-1905

1894-1921

1888-1914

1897-1927

1891-1938

1888-1938

1898-1938

1889-1920

1894-1926

1890-1906

1861-1936

1895-1920

1904-9

1895-laOS

iaee-1913

1898-1917

1869-1937

1890-1904

Water-Supply

Paper

107

298

299

500

447

597 -E

636-D

636-E

637-A

74

197

415

1105

230

370

850

424

492

870

156

469

395

617

918

1049

916

517

618

198

917

E36

279

192

358

491

920

109

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

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

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

these reports.

253646 O - 53 - 2
SURFACE WATER SUPPLY, 1950, PART 13

State reports containing compilations of records of discharge

State

Connecticut. . .

Florida. ......

Do. ........

Do. ........ 

Iowa. .........

Kansas. .......

Do ......... 

Do. ........

Kentucky. ..... 

Louisiana. ....

Maine. ........

Maryland. .....

Do ......... 

Minnesota. ....

Mississippi. . .

Do .........

Nebraska. .....

New Hampshire. 

New Jersey. . . .

Do .........

New Mexico. . . . 

North Carolina

Do. ........

North Dakota. .

Do .........

Do .........

Do .........

Do .........

Oregon. .......

1 Contains re 

2 Contains re 

discharge.

Period

1895-1915 

.1904-47

1857-1928 

1905-48

1881-1935 

1881-1938

1900-1927 

1912 33

1898-1946 

1895-1906 

1907-19 

1908-11 

1900-1934 

1923-27 

1927-30 

1873-1932 

1873-1940

1941-42 

1895-1919

1924-28 

1928-35 

1935 39

1910-20 

1903-38

1887-1920 

1929-57

1892-1943

1931-48 

1909-12

1900-1948

1927-39

1881-1938 

1894-1914

1914-28 

1889-1922 

1892-1928

1928-54 

1934-40

1888-1925 

1889-1925

1889-1936

1866-1945 

1820-1945

1866-1945 

1872-1945 

1857-1945 

1919-21

1882-1938 

1882-1944

1898-1921

1898-1944 

1902-39

1898-1939 

1878-1914 

1914-24 

1924-30

ords of yei 

ords of mai

Report

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

Surface Water Resources of Arkansas. .......

Water resources of Colorado, Appendix 2, 

Data on stream-gaging stations of 

Colorado. ^ 

Water resources of Colorado, Appendix 3, 

vols. 1 and 2, Stream-flow data of 

Colorado. 

Bull. 44, Water resources of Connecticut...

Bull. 51, Springs of Florida. .............. 

Bull. 16, Water powers of Georgia. .........

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

Stream-flow data of Illinois. .............. 

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

Pub. 112, Surface water supply of Indiana.. 

Stream-flow records of Iowa. ............... 

Water-Supply Bull. 1, Summaries of yearly ' 

and flood flow relating to Iowa streams.. 

Water-Supply Bull. 2, Surface water 

resources of Iowa. 

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

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

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

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

Geol. Bull. 16, Surface water supply of 

Louisiana. 

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

Flow data and draft storage curves for 

major streams In Maryland. 

Bull. 1, Summary of records of surface 

waters of Maryland and the Potomac 

River Basin. 

Bull. 5, Anne Arundel County Water Resources

sota. 

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

Missouri. 

Vol. 26, 2d series, Surface waters of 

Missouri.

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

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

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

Bull. 33, Surface water supply of New 

Jersey. 

Special Rept. 5, Surface water supply of 

New Jersey. 

Special Rept. 9, Surface water supply of 

New Jersey. 

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

Bull. 34, Discharge records of North 

Carolina streams. 

Bull. 39, Discharge records of Nortft 

Carolina streams. 2 

Hydrologic Data on the Neuse River Basin. 

Hydrologic Data on the Cape Fear River 

Basin. 

Hydrologic Data on the Yadkin-Pee Dee 

River Basin. 

Hydrologic Data on the Catawba and Broad 

River Basins. 

Hydraulic Data on The French Broad River 

Basin. 

Report to Governor of North Dakota on 

flood control. 

Surface water in North Dakota. ............. 

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

Bull. 127, Ohio stream flow, Part 2. ....... 

Bull. 200, Compilation of stream-flow 

records of Ohio.

Bull. Ill, Ohio stream-drainage areas and 

flow-duration tables. 

Bull. 4, Water resources of the State of

Oregon.

Oregon. 

Bull. 8, Water resources of the State of 

Oregon, 

irly discharge only, 

cimum and minimum daily, weekly, and monthly

Issued by

Geological Survey of Alabama.

Do.

Arkansas Geological Survey. 

Arkansas Resources and Development Commission; 

University of Arkansas, 

Institute of Science and 

Technology, 

State Planning Commission, 

Water Conservation Board, 

State engineer. 

Do.

State Geological and Natural 

History Survey. 

State Water Commission. 

Florida Geological Survey. 

Geological Survey of Georgia. 

Do. 

Rivers and Lakes Commission. 

Division of Waterways. 

Department of Conservation. 

DO. 

State Planning Board. 

Iowa Geological Survey.

Do.

Kansas Water Commission. 

Do. 

State Board of Agriculture. 

DO. 

Do. 

Kentucky Geological Survey. 

Department of Conservation.

Maine Water Power Commission. 

State Planning Commission and 

Water Resources Commission. 

Department of Geology, Mines, 

and Water Resources.

Do.

Mississippi Geological Survey. 

Missouri Bureau of Geology 

and Mines. 

Missouri Geological Survey 

and Water Resources. 

Office of the State Engineer. 

Montana Agricultural Experiment Station. 

Bureau of Water Power, Irrigation, and Drainage. 

Do. 

Public Service Commission.

and Development . 

State Water Policy Commission.

Do.

Office of the State Engineer. 

Department of Conservation 

and Development.

Do. 

Do.

Do.

Do.

Do. 

DO. 

State chief engineer.

State Planning Board. 

State Water Conservation 

Commission.

Ohio State University.

Do.

Division of Conservation 

and Natural Resources. 

Engineering Experiment Station,

Office of the State Engineer. 

Do. 

Do.

iischarge and yearly mean
PUBLICATIONS

State reports containing compilations of records of discharge Continued

State

Pennsylvania. . .

South Carolina.

Do. .........

Virginia. ......

Do. .........

Washington. .... 

Wisconsin. .....

Period

1890-1911

1884-1946

1906-10

1895-1927

1927-42

1927 4°

1878-1933 

1888-1914

Report

Oregon.

Oregon. 

Report of the Water Supply Commission of 

Pennsylvania.

Bull. 17, Summary of records of surface 

water supply of South Carolina.

7th biennial report ......................

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

(Potomac, Rappahannock, and York River 

Basins). 

Bull. 5, Surface water supply of Virginia 

(James River Basin).

(Roanoke and Chowan River Basins).

(New, Tennessee, and Big Sandy River 

Basins) . 

Bull. 5, Monthly and yearly summaries of 

hydrometric data. 

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

consin to Legislature on water powers.

Issued by

Water Supply Commission of 

Pennsylvania.

Waters.

South Carolina Research, 

Planning and Development 

Board.

Do.

Virginia Geological Survey.

mission.

Do.

Department of Conservation 

and Development. 

Railroad Commission of Wisconsin.

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

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

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

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

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

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

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

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

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

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

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

Water-Supply 

Paper

88

92

96 

147 

162 

334 

426

487

488

520-G

636-C

771

773-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 

1134-A 

1134-B 

1137-A

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 Rocky Mountain region.

The New England flood of November 1927.

Floods in the United States, magnitude and frequency.

The New York State flood of July 1935.

Flood on Republican and Kansas River?, 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 Muskingum 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 August 1940 in the southeastern States.

Floods of May-June 1948 in Columbia River Basin.

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

Floods of July 18, 1942 in North Central Pennsylvania.

Missouri River Basin Floods of April-May 1950 in North and South Dakota.
The following taole contains a list of gaging stations for the area covered by this 

report at whi^h records of dally discharge were collected during the water year October 

1949 to Seprember 13SU by agencies other than the Geological Survey. The records for 

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

no 1 ed.

Records of discharge collected by agencies other than the Geological Survey

Collected by

1956-42. 1944-50t

Neat Driggs, Idaho 

See. 5, T. 3 S.. R

194U-5L*........

1954-50*........

Idaho Water District 36.

Du. 

Oregon State engineer.

Do.

Idaho Water District 36.

Do.

outlet, near Joseph, Ore

?lov, Wallowa Lake 

3seph, Qreg.

t Records for

Fragmentary. 

Note.--Of t

The worl: in the several States was done under cooperative agreements wlr.h the organizations listed below.

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

Big Lost River Irrigation District; and city of Pocatello. 

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

Utah: office of the State Engineer, H. A. Linke, succeeded by J. M. Tracy. 

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

director, and C. J. Bartholet, supervisor of hydraulics. 

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

Financial assistance was furnished by the Corps of Engineera in the operation of 1C 

gagiiig stations, of which 9 were in Idaho, 3 in Oregon, 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 and the Forest Service 

of the United States Department of Agriculture.

Assistance in collecting record; was rendered by the following organizations and watermasters .

Idaho: Idaho Power Co., Board of Control for Boise Project, Idaho Water 

District 36, North Side Canal Co., Twin Falls Canal c o . , Utah Power fe Light Co.. 

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

Little rfood, Boise, and Weiser Rivers, Lake Fork of Payette River, and Mud Lake.

Oregon: Malheup, Baker, Union, and Wallowa Counties, Pacific Power & Light 

Co., and Warmsprings Irrigation District.

Washington: Bonreville Power Administration, Washington Water Power Co.
The stream-gaging work was conducted "by the water resour:e3 division of the Geological 

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

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

prepared for publication under supervision of district engineers as listed below.

Idaho: Stations on Snake River between Irwin and Milner, stations on tributaries of Snake River above American Falls Reservoir (except Teton River near 

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

Spring Creek near Tetonia) and diversions from Snake River at and above Milner, 

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

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

above Upper Vinyard ditch, near Contact, T. R. Newell).

Oregon: K. N. Phillips (except for Jordan Creel; above Lone Tree Creek, near 

Jordan Valley and Snake River at Oxbow, T. R. Newell), the work being done in 

collaboration with C. E. Strieklin, State engineer. 

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

Washington: F. M. Veatcli.

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

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

line, and Swift Creek near Afton, F. M. Bell; 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.
GAGING-STATION RECORDS

SNAKE RIVER MAIN STEM 

Jackson Lake at Moran, Wyo.

Location.--Electric tape gage, lat. 43°51', long. 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 square miles.

Records available.--July 1908 to September 1950 (1908-10 fragmentary).

Extremes.--Maximum contents during year, 852.350 acre-feet July 20 (elevation, 6,769.21

 1'eet) ; minimum, 274,190 acre-feet Oct. 1 (elevation, 6,744.51 feet).

1908-50: 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 1906 with a usable capacity of 300,000

 acre-feet. This 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 River 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 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

274,190

275,020

276,070

276,700

£77,750

278,790

279,630

281,100

281,730

282,980

283,820

284,450

285,930

286,780

287,630

288,480

289,120

292,510

293,570

294,630

295,900

296,750

297,600

298,240

299,300

300, 150

300,990

302,050

303,330

304,180

304,810

Nov.

305,450

306,090

306,950

307,810

308,450

309,310

309,950

310,810

312,100

313,170

314,890

315,530

316,390

317,030

317,680

318,540

319,610

320,250

320,900

321,540

322,180

322,830

323,470

325,620

326,690

327,770

328,640

329,510

330,590

331,460

-

Dec.

332,330

332,980

333,850

334,280

334,930

335,800

336,230

336,670

337,320

338,190

338,840

339,270

339,710

340,360

341,010

341,880

342,530

343,610

345,130

346,650

347,300

347,740

348, 39'0

349,700

350,570

351,230

351,890

352,990

353,420

354,300

355,180

Jan.

355,620

356,280

356,930

357,810

358,470

359,130

360,000

360,880

361,540

362,630

363,290

363, bSO

364,830

366,800

368,120

369,000

370,750

371,860

372,960

374,290

376,070

378,060

379,830

381,820

383, 150

384,040

385,590

387,580

388,690

389,580

390,460

Feb.

391,570

392,460

393,570

394,460

397,370

398,270

400,500

401,620

402,290

402,960

404,080

405,200

406,320

407,210

407,880

408,780

409,670

410,790

411,680

412,800

414,590

415,940

417,060

419,090

420,450

421,120

422,030

424,510

_

_

-

Mar.

425,180

425,640

426,090

426,540

426,990

427,890

428,570

429,470

430,600

431,950

433,300

434,210

435,110

436,010

436,690

437,360

438,500

440,540

441,450

442,820

444,640

445,320

447,590

448,280

449,640

450,090

450,090

450,090

450,090

449,870

449,640

Apr.

449,410

448,960

448,960

448,960

448,960

448,730

448,500

448,280

448,280

448,280

448,050

448,050

447,820

448,050

448,280

448,050

448,050

448,280

448,730

448,960

449,640

450,090

450,780

450,780

450,780

450,780

450,780

450,780

450,550

450,550

Hay

450,550

449,870

449,180

448,730

448,050

448,050

447,590

447,360

446,910

446,460

446,460

446,230

446,000

446,230

445,090

443,500

443,270

444,180

443,730

446,000

449,640

450,780

451,460

456,690

465,370

473,620

481,860

495,010

506,090

516,080

527,000

June

539,380

552,250

563,320

572,740

584,340

599,050

617,670

637,340

652,040

662,210

671,410

682,370

695,780

708,300

725,270

737,140

752,510

766,200

777,460

788,740

799,800

812,680

823,050

830,180

836,030

838,060

840,100

843,660

846,210

847,000

-

July

847,000

847,000

847,000

848,510

850 , 300

851,330

851,580

851,580

850,560

849,020

850,050

849,790

849,280

849,790

851,070

851,840

851,840

851,840

851,330

852,350

851,580

849,280

847,000

842,900

838,830

834,250

829,160

823,560

818,240

812,940

807,130

Aug.

801,320

795,010

787,740

780,460

773,690

767,450

762,220

756,740

751,020

743,810

736,400

729,220

722,800

717,140

711,980

706,090

700,200

693,830

687,250

680,910

675,060

668,990

662,930

658,330

653,000

647,680

641,670

636,380

630,370

624,600

618,860

Sept.

612,890

606,440

599,760

593,830

586,240

578,170

571,100

562,380

554,130

552,960

553,190

552,720

552,490

552,720

553,190

553,660

554,600

555,780

557,200

558,610

559,320

560,260

561,440

562,380

563,080

564,260

565,200

565,680

567,090

570,390

-

Monthly elevations and contents, water year Occooer 1949 to September 1950

Date

Calendar year 1949....

Feb. 28.................

Water year 1949-50....

Elevation 

(feet)

-

-

Contents 

(acre-feet)

-

-

Change In contents 

during month 

(acre-feet)

+23 * 720

+33,430

+35 280

+297,250
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 1950.

Average discharge.--47 years, 1,412 second-feet.

Extremes.--Maximum discharge during year, 8,100 second-feet June 30 (gage height, 9.05 

feet); minimum daily, 3 second-feet on several days.

1903-50: Maximum discharge, 15,000 second-feet June 12, 1918 (gage height, 10.41 

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

Remarks. Records excellent except those for Oct. 1 to Mar. 22, which are good. Flow regulated by Jackson Lake (see preceding page).

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

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

1Z 

13 

14 

15

16 

17 

18 

19 

ZO

Zl 

ZZ 

Z3 

Z4 

25

26 

27 

28 

29 

30 

31

Oct.

15 

15 

15

23 

3

3 

3

4 

4

5

5 

5 

3

3 

4

4 

4 

5 

4 

4

4 

3 

3 

3 

3

3

3 

3 

4 

4 

4

Nov.

4 

4 

4 

4 

4

4 

4 

5 

5 

5

4 

4 

4 

4 

4

4 

4 

5

5 

5

4

4 

4 

4 

4

4 

4

4 

4 

4

Dec.

4

Jan.

4

Feb.

4

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

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

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

Mar.

4 

4 

4 

4 

4

4 

4 

4 

4 

4

4

60 

296 

570

570 

570 

570 

570 

570 

570

Apr.

570 

570 

57O 

565 

5S5

565 

570 

570 

570 

570

575

575 

575 

575 

575

575 

575 

575 

58O 

580

586 

764 

895 

895 

895

888 

888 

888 

888 

888

Secondfoot-clays

168 

126 

124

538,724

124 

112 

4,434 

19,920 

42,399 

61,729 

134,700 

130,360 

44,940

439,136

May

888 

888 

923 

923 

930

937 

951 

965 

993 

836

848 

1,360 

1,890 

2,540 

3,350

3,630 

3,120 

3,750 

2,290 

57.

1,780 

2,95O 

3,620 

1,390 

92

86 

86 

86 

84 

80 

76

Maximum

23 

5

7,220

570 

895 

3,750 

7,910 

7,730 

5,330 

5,120

7,910

June

74 

70 

68 

68 

68

68 

70 

72 

72 

68

68 

68 

68 

67 

1,490

2,170 

2,180 

2,190 

2.21O 

2,220

2,240 

2,870 

3,890 

4,880 

5,280

4,930 

4,490 

4,930 

6,880 

7,910

July

7,730 

7,550 

6,270 

5,6OO 

5,400

5,770 

6,060 

6,470 

5,880 

4,700

4,440 

4,310 

3,060 

2,360 

2,410

2,58O 

2,570 

2,550 

1,950 

1,940

3,22O 

3,280 

3,670 

4,080 

4,130

4,300 

4,660 

4,640 

4,500 

4,370 

4,250

Minimum

3 

4

3

565 

57 

67 

1,940 

3,410 

36

3

Aug.

4,380 

5,140 

5,330 

5,O3O 

4,790

4,340 

3,980 

3,950 

4,670 

5,000

5,110 

4,620 

4,250 

3,940 

3,860

4,070 

4,220 

4,320 

4,300 

4,190

4,020 

3,840 

3,560 

3,410 

3,590

3,630 

3,810 

3,820 

3,680 

3,720 

3,790

Mean

5.4 

4.2 

4

1,476

4 

4 

143 

664 

1,368 

2,058 

4,345 

4,205 

1,498

1,203

Sept.

3,940 

4,160 

4,240 

4,420 

4,790

4,960 

5,120 

5,090 

3,110 

1,400

784 

778 

690 

575 

330

39 

38 

38 

38 

38

36 

36 

36 

36 

36

36 

36 

36 

38 

36

Runoff in 

acre-feet

333 

250 

246

1,069,000

246 

222 

8,790 

39,510 

84,100 

122,400 

267,200 

258,600 

89,140

871,000

Note. Stage-discharge relation affected by ice Dec. 1 to Mar. 30. Staff-gage readings used Oct. 

1 "Eo~A"pr. 3O, Sept. 24-30.
SNAKE RIVER MAIN STEM

r~TT8 W. sixth principal meridian, Wyo., at State line bridge un U. 3 

carter of a mile south of Alpine, Idaho, post office, 1-jj miles upstre

River, and 2 miles downstream from Greys River. 

Drainage area. --3 ,940 square miles. 

Records available. October 1944 to September 1950.

Extremes.--Maximum discharge observed during year, 24,500 second-feet July 2 (gage height, 

9. ty feet); minimum observed, 1,160 second-feet Feb. 2, 3; minimum gage height observed, 

2.63 feet Feb. 2.

1944-50: Maximum discharge observed, that of July 2, 1950; minimum daily, 1,050 

second-feet Jan, 25-31, 1949; minimum gage height observed, 2.29 feet Mar. 6, Apr. 3, 

1945.

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

!h are lair. Ga;e read nnce daily except for most of period May 24 to July 2, when

it mas read twice dail Diversions from tributaries above station. Some regulation

by Jackson Lake (see p. 14).

Discharge, In second-feet, water year October 1949 to September 195C

Jan. Feb. Mar. Apr. May June July Aug. Sept.

1,540 

1,540 

1,540 

l,54u 

1,680

,670

,440

,370

,300

1,560

1,530

1,500

1,520

1,530

1,560

1,540

1,790

1,730

1,680

4,190

4,430

a5,000 

4,900 

5,080

1,340

1,370

2,020

1,000

1,990

2,130

5,000

5,000

4,570

4,540

4,450

2,690

2,690

2,690

3,240

s,eeo

Seeondfoot-days

Runoff In 

acre-feet

October.. 

November. 

December.

2,000

1,840

1,550

Calendar year 1349 1,867,470 18,200

January... 

February.. 

March.....

April.....

May.......

June......

July......

August....

September.

1,740

1,700

2,130

6,630

17,300

22,800

24,400

10,100

7,530

1,400

1,160

1,500

2,300

4,170

13,100

3,380

6,420

2,690

1,543

1,407

1,682

3,971

9,837

18,560

14,890

7,840

4, 252

Water year 1949-50 24,400

* Winter discharge meas 

a No gage-height record 

near Helse and Irwin. 

Note. Stag^-diseharge

on this aay. 

computed on basis of neathe

affected by Ice Dec. 15-17, De
StlME RIVER MAIN STEM 17 

Snake River near Irwln, Idaho

Location.--Water-stage recordei, lat. 43°S1', lone. lll°lo', in NEr sec. 7, T. 1 ?., R. 

4b Ji., 2 miles upstream from Palisades Creel: and 5 miles Eoitheast cf Irwln. Datum of 

gage is 5,353.0 feet above mean sea level, datum of 19C7. Pi-lor to Mar. 21, 1050, staff 

gage 1,100 feet downstream, at datum 1.9 feet higher.

Records available.--May 194y to September 1950. upril 133b to October 1936 at site 3j 

miles downstream.

Extremes.--Maximum discharge during year, 27,800 second-feet July 3 (gage height, 12.52

; minimum daily, 1,590 second-feet Feb. 3.

1935-36, 1949-50: Maximum discharge, that of July 3, 1950; minimum, that of Feb.

Remarks.--Records fair prior to Mar. 21 and excellent thereafter. Some regulstion by 

TacTtnon Lake (see p. 14).

Cooperation.--Qpge-helght record furnished by Bureau of Reclamation.

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

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

a3, 300 

a3,000 

a2,800

a2,800 

a2,900

a2,880 

2,850 

a2,830

a2,810 

2,790

2,760 

2,760 

2,790 

aE,760 

a2,740

a2,730 

2,720 

a3,000 

3,280 

3,170

3,090 

a3,000 

a2,920 

2,880 

2,810

2,760 

2,760 

2,700 

a2,750 

a2,780 

2,700

N9v.

2,670 

?,SZQ 

2,600 

2.6OO 

a2,580

a2,560 

2,550 

2,570

2,670 

2,720

a2,770 

a2,710 

a2,650 

2,600 

2,530

2,500 

2,500 

2,460 

a2 , 430 

a2 , 410

2,400 

2,350 

2,300 

a2,550

a2 , 800

a2,850 

a2 , 840 

2,830 

2,790 

2,720

Dec.

3,600 

a2,500 

a2,440 

a2,380 

2,330

2,280 

2,250 

2,320 

a2 , 340 

a2 , 340

a2,300 

a2,220 

a2,150 

a2,100 

*2,060

2,130 

a2,150 

a2,150 

2,130 

b2,050

b2,050 

b2,050 

b2,080 

b2,100 

1)2,080

t2,100 

b2,200 

b2,150 

b2,150 

2,140 

2,140

Jan.

a2,120 

b2,120 

2,080 

1,920 

b 1,800

t 1,850 

bl,900 

bl,950 

b2,000 

b2,000

b2,000 

b2,000 

bl,950 

al,900 

al,850

1,860 

tl,900 

bZ.OOO 

2,040 

*2,130

a2,230 

a2,350 

2,460 

2,270 

2,000

1,860 

a2,030 

2,000 

a2,000 

1,990 

1,900

Feb.

bl,850

1,790 

1,590 

al,700 

2,130

2,130 

2,130 

1,990 

1,880 

*2,130

a2,080 

a2,080 

2,070 

a2,030 

1,990

1,990 

2,060 

a2,050 

a2 , 000 

1,990

1,990 

al,990 

2,030 

2,060

2,190

a2,260

2,220 

2,190

Month

Octo 

Hove 

Dece

Ca.

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year

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

Mar.

2,130 

2,010 

2,130 

a2,200 

a2,280

2,270 

2,240 

2,140 

2,140 

2,140

a", 100 

a2,030 

1,990 

2,010 

1,990

1,930 

2,070 

a2,200 

a2,300

2,220

2,160 

2,160 

2,140 

2,120 

2,170

2,360 

2,540 

2,520 

2,470 

2,440 

2,520

Apr.

2,720 

3,290 

3,350 

3,060 

2,920

2,960 

3,480 

4,190

4,530 

4,270

4,220 

4,730 

5,400 

6,340 

6,500

7,370 

8,350 

9,060 

8,560 

8,560

9,540 

10,600 

10,400 

9,250 

8,290

7,840 

8,080 

7,900 

7,320 

6,750

Secondfoot -days

88,820 

78,130 

68,460

-

62,460 

56,590 

68,120 

189,830 

416,140 

662,500 

545,200 

290,780 

165,280

2,692,310

May

6,580 

6,480 

6,290 

6,210 

6,080

5,920 

6,030 

6,180 

6,110 

6,160

6,290 

7,520 

9,790 

12,600 

15,200

17,900 

18,700 

20,400 

18,800

14,900

12,800 

16,100

20,600 

23,700 

21,000

18,200 

18,200 

20,300 

20,600 

19,600 

20 , 900

Maximum

3,300 

2,850 

2,600

-

2,460 

2,260 

2,540 

10,600 

23,700 

25,700 

27,300 

11,900 

9,150

27,300

June

2O.8OO 

21,200 

19,800

17,500 

18,100

20,800 

24,200 

24,4,00 

21,100 

18,100

16,600 

17,800 

19,500 

19 , 900 

20,400

23,000 

24,800 

24,800 

24,100 

23,700

23,900

24, 100 

25,300

25,700 

25,600

24,200 

22,400 

22,100 

23,200 

25,400

July

26,800 

27,300

27,200 

25,800 

24,700

24,000 

23,700 

23,800 

23,100 

22,400

22,300 

21,100 

19,100 

16,800 

15,100

14,600 

14,100 

13,400 

13,000 

12,000

11,600 

12,400 

12,200 

12,300 

12,300

12,200 

12,200 

12,600 

12,900 

12,400 

11,800

Minimum

2,700 

2,300

2,050

-

1,800 

1,590 

1,930 

2,720 

5,920 

16,600 

11,600 

7,630 

3,570

1,590

Aug.

11,200 

11,100 

11,600

11,900 

11,700

11,200 

10,500 

9,950 

9,760 

10,100

10,400 

10,400 

9,920 

9,540 

9,060

8,900 

8,930 

8,960 

9,020 

8,900

8,710 

8,470 

8,200 

7.87O 

7,720

7,840 

7,810 

7,870 

7,870 

7,750 

7,630

Mean

2,865 

2,604

2,208

-

2,015 

2,021 

2,197 

6,328 

13,420 

22,080 

17,590 

9,380 

5,509

7,376

Sept.

7,690 

7,810 

7,900 

7,960 

8,110

8,380 

8,500 

8,740 

9,150

7,630

6,180 

5,200 

4,960 

4,760 

4,680

4,630 

4,150 

4,030 

3,910 

3,800

3,700 

3,660 

3,680 

3,640 

3,660

3,570 

3,610 

3,590 

3,730 

4,270

Runoff In 

acre -feet

176,200 

155,000 

135,800

-

123,900 

112,200 

135,100 

376,500 

825,400 

1,314,000 

1,081,000 

576,800 

327,800

5,340,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station near Helse.

b Stage-discharge relation affected by Ice.
18 SNAKE RIVER MAIN STEM

Snake River near Heise, Idaho

Location.--Water-stage recorder, lat. 43°37', long. 111 0 40 ! , in sec. 5, T. 3 N., R. 41 E., 

3 miles upstream from Heise and 23 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 1950, except winters of 1914-24.

Average discharge.--40 years, 6,768 second-feet.

Extremes.--Maximum discharge during year, 28,500 second-feet July 3 (gage height, 8.79 

feet); minimum, 1,740 second-feet Feb. 4 (gage height, 1.36 feet).

1910-50: 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 1 except those for periods of ice effect, which are good. Station 

is above all irrigation diversions from main river except Riley ditch (4,810 acre-feet 

diverted during year), which diverts 1 mile upstream from station. About 110,000 acres 

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 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4,120 

3,680 

3,400 

3,3OO 

3,300

3,400 

3,360 

3,340 

3,300 

3,320

3,340 

3,300 

3,340 

3,280 

3,230

3,210 

3,230 

3,790 

4,120 

3,970

3,770 

3,580 

3,480 

3,440 

3,360

3,340 

3,280 

3,270 

3,320 

3,380 

3,270

Nov.

3,170 

3,140 

3,100 

3,080 

3,050

3,010 

2,970 

3,030 

3,150 

3,270

3,340 

3,210 

3,100 

3,030 

2,990

2,960 

2,920 

2,880 

2,830 

2,810

2,780 

2,730 

2,740 

2,970 

*3, 190

3, 170 

3,080 

3,170 

3,540 

3,280

Dec.

3,100 

2,960 

2.9OO 

2,780 

2,660

2,660 

2,640 

2,640 

2,710 

2,760

2,760 

2,600 

2,580 

2,560 

2,520

b2,500 

b2,550 

b2,500 

b2,400 

b2,300

b2,350 

b2,370 

*b2,390 

b2,380 

b2,350

b2,400 

2,530 

2,440 

2,410 

2,420 

2,410

Jan.

2,440 

b2,400 

b2,350 

2,310 

1,980

b2,000 

b2,100 

b2,2OO 

b2,250 

b2,250

b2,250 

b2,250 

b2,250 

b2,150 

2.O8O

b2,150 

2,080 

*b2,220 

2,380 

2,580

2,710 

2,900 

3,060 

2,870 

2,410

2,180 

2,400 

2,290 

2,270 

2,160 

b2,100

Feb.

b2,080 

b2,050 

1,910 

1,850 

2,210

2,640 

2,740 

2,580 

2,460 

2,360

2,360 

2,410 

2,280 

2,340 

2,400

*2,380 

2,470 

2,460 

2,400

2,410

2,410 

2,360 

2,380 

2,610 

2,740

2,740 

2,680 

2,580

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-5O .......................

Mar.

2,520 

2,440 

2,440 

2,520 

2,610

2,830 

2,690 

2,550 

2,550 

2,530

2,500 

2,440 

2,440 

2,410 

2,440

2,420 

2,550 

2,760 

2,870 

2,810

2,680 

2,640 

2,640 

2,600 

2,640

2,740 

2,970 

3,050 

2,990 

2,960 

2,970

Apr.

3,230 

3,970 

4,030 

3,710 

3,540

3,640 

4,030 

4,660 

5,110 

5,020

4,820 

5,110 

5,780 

6,810 

7,050

7,840 

8,920 

9,940 

9,590 

9,420

10,300 

12,300 

12,000 

10,900 

9,550

8,860 

8,920 

8,960 

8,450 

7,780

Seeondfoot-days

106,820 

91,690 

79,530

2,463,810

72,020 

67,290 

82,200 

214,240 

453,850 

686,700 

560,300 

307,990 

181,390

2,904,020

May

7,430 

7,350 

7,160 

7,020 

6,890

6,760 

6,680 

6,940 

6,910 

6,890

6,990 

7,960 

9,970 

13,700 

16,100

19,400 

20,700 

21,600 

21,000 

17,500

14,100 

16,700 

21,100 

25,600 

23,700

20,200 

19,800 

21,600 

22,500 

21, 100 

22,500

Maximum

4,120 

3,540 

3,100

20,900

3,060 

2, 74,0 

3,050 

12,300 

25,600 

26,700 

28,300 

12,300 

9,490

28,300

June

22,700 

22,600 

21,600 

19,000 

19,000

21,400 

25,100 

26,300 

23 , 100 

19,200

17,500 

17,900 

19,600 

20,400 

20,700

22,400 

25,000 

26,100 

24,900 

24,200

23,900 

24,300 

25,400 

26,700 

26,700

25,700 

23,500 

22,700 

23, 400 

25,700

Minimum

July

27,400 

28,100 

28,300 

26,900 

25,500

24, 7OO 

24,100 

24,200 

23 , 8OO 

22,700

22,600 

21,700 

2O.OOO 

17,500 

15,800

15,000 

14,500 

13,800 

13,400 

12,500

11,600 

12,600 

12,500 

12,400 

12,600

12,500 

12,400 

12,800 

13,200 

12,900 

12,300

3,210 

2,730 

2,300

1,950

1,980 

1,850 

2,410 

3,230 

6,680 

17,500 

11,600 

8,080 

4,160

1,850

Aug.

11,700 

11,300 

11,900 

12,300 

12,000

11,700 

11,100 

10,500 

1O.2OO 

10,700

10 , 900 

11,200 

10,700 

10,300 

9,860

9,520 

9,620 

9,620 

9,660 

9,520

9,420 

9,120 

8,830 

8,540 

8,270

8,270 

8,300 

8,330 

8,360 

8,170 

8,080

Mean

3,446 

3,056 

2,565

6,750

2,323 

2,403 

2,652 

7,141 

14,640 

22,890 

18,070 

9,935 

6,046

7,956

Sept.

8,050 

8,050 

8,240 

8,240 

8,300

8,580 

8,700 

8,960 

9,490 

8,800

6,940 

,810 

,510 

,380 

,240

,260 

,920 

,680 

,560 

,520

,410 

,340 

,320 

,320 

,270

,230 

,190 

,160 

,190 

,730

Runoff In 

acre-feet

221,900 

181,900 

157,700

4,887,000

142, 800 

133,500 

163,000 

424,900 

900,200 

1,362,000 

1,111 ,000 

610,900 

359,800

5,760,000

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SNAKE RIVER MAIN STEM 19

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 1950. 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Hov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri

June 

July 

Augu 

Sept

Th

ber.....................................

mber. .......................... --------

lendar year

e period. ...............................

Mar. Apr.

Seeondfoot-days

135,333 

193,630 

268,840 

252,530 

153,210

-

May

411 

413 

562 

787 

1,120

1,410 

1,520 

1,810 

2,240 

2,560

3,500 

4,100 

4,700 

5,070 

5,130

5,890 

6,150 

6,190 

6,280 

6,180

6,270 

6,560 

6,940 

6,760 

6,400

6,210 

6,280 

6,230 

5,760 

5,820 

6,040

Maximum

6,940 

8,980 

9,610 

9,300 

7,500

-

June

6,760 

6,780 

6,240 

6,120 

6,320

7,010 

6,500 

4,300 

3,630 

3,790

3,320 

3,830 

4,640 

5,730 

6,250

7,420 

8,390 

8,230 

6,320 

8,960

8,980 

8,900 

8,220 

7,040 

5,760

5,870 

5,830 

6,060 

6,750 

7,480

July

6,220 

8,210 

8,510 

6,350 

8,420

8,280 

7,560 

7,350 

7,290 

7,430

7,200 

7,420 

7,540 

8,080 

8,650

8,810 

9,340 

9,590 

9,440 

9,470

9,460 

9,610 

9,430 

9,260 

9,570

9,590 

9,580 

9,560 

9,390 

9,150 

9,060

Minimum

411 

3,320

7,200 

7,230 

3,560

-

Aug.

9,280 

9,300 

9,290 

9,160 

8,990

8,520 

8,540 

8,620 

8,580 

6,640

8,720 

8,650 

8,190 

6,200 

8,040

7,990 

8,040 

8,090 

8,000 

7,780

,920 

,770 

,580 

,590 

,280

,340 

,410 

,280 

7,250 

7,230 

7,240

Mean

4,366 

6,454 

8,672 

8,146 

5,107

-

Sept.

,240 

,220 

,280 

,440 

,440

,470 

,500 

,420 

,730 

,440

,750 

,710 

,640 

,420 

,250

,150 

,060 

,030 

,140 

,300

,30O 

,260 

,060 

,890 

,760

,800 

,720 

,640 

3,590 

3,560

Runoff in 

acre-feet

268,400 

384,100 

533,200 

500,900 

303,900

1,990,000
SNAKE KIVER MAIN STEM

Records available.--March 1915 to September 1950 (summer months only during some years).

Extremes.--Maximum discharge dur ng year, L3.000 second-feet June 9 (gage height, 12.55 

reet); minimum daily, 1,750 second-feet Jan. 17.

1915-50: Maximum discharge, 47,200 second-feet June 17, 1918 (gag; height, 16.97 

feet); minimum, 238 second-feet Nov. 5, 1934 (gage height, 2.22 fe°t) . Maximum discharge known, 70,000 second-feet (estimated) June 6, 1894, at former 

station at Eagle Ruck (now Idaho Palls) , 7 miles upstream from present site.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3,290

3,620 

3,570 

3,310

3,070

3,210 

3,330 

3,460 

3,480 

3,570

3,710 

3,970 

4,020 

4,020 

3,950

3,870 

3 , 850 

3,900 

4,460 

4,940

4,84,0 

4,660 

4,520 

4,520 

4,440

4,360 

4,300 

4,200 

4,170 

4,140 

4,220

Nov.

4,170 

4,100 

4,070 

4 , 000 

3,950

3,920 

3,950 

3,920 

4,000

4,300

4,440

4,610 

4,300 

4,140 

4,070

 3,950 

3,780 

3,420 

3,290 

3,270

3,190 

3,110 

3,130 

3,090 

3,330

3,500 

3,520 

3,520 

3,640 

3,970

Dec.

3 , 800 

3,620 

3,480 

3,420 

3,270

3,150 

3,640 

3,310 

3,290 

3,480

2,940 

2,700 

2,900 

3,150 

3,100

2,810 

2 , 900 

3,100 

3,200 

3,150

2,900 

2,700 

2,700 

2,750 

3,100

2,900 

2,700 

*2,900 

3,000 

3,000 

3,100

Jan.

3,000 

2 , 900 

2 , 500 

2,200 

2,100

2 , 000 

1,900 

2 , 000 

2,100 

2,200

2,300 

2 , 400 

2,300 

2 , 150 

1 , 800

1,900 

1,750 

1 , 800 

1,950 

2,200

2,700 

3,500 

3,550 

3,400 

3,200

2,950

2, eoo

2,400 

2,450 

2,550 

2,500

Feb.

2,450 

2,350 

2,250 

2,100 

2,150

2,300 

2,700 

3,400 

3,350 

3,250

3,100 

2,950

2,950 

2 ,950 

2 , 900

2 ,900 

3,000 

3,050 

3,100 

3,150

3,100 

3,050

3 , 050 

3,100 

3,250

3,600 

4,200 

*4 , 500

Month

Octo 

Nove 

Dece

Ca

Janu 

February 

Apr!

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1949 

ary

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

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

Mar.

4,900 

4,750

4,020 

3,850 

3,830

4,170

4,520 

4,250 

3,830 

3,730

3,750 

3,620 

3,460 

+3,420 

3,420

3,350 

3,310 

f 3 , 400 

a4,250 

a4,200

a4,100 

a3,950 

a3,800 

a3,650 

f3,590

3,620

3,750 

4,000 

4,070 

4,020 

3,950

'Apr.

4,000 

4,520 

6,180 

6,700 

6,050

5,410 

5,440 

6,310 

7,060 

7,630

7,290 

6,800 

7,000 

7,800 

9,010

9,040 

10,000 

11,300 

12,300 

11,700

11,700 

12,500 

14,200 

14,300 

13,100

11,700 

10,700 

10,800 

10,700 

9,860

Secondroot-days

122,970 

113,650

96,160

2,086,450

75,250 

84, 200 

120,530 

271,100 

402,500 

658,900 

416,230 

139,280 

133,510

2,634,280

May

9,010 

8,660 

8,350 

7,630 

7,330

6.930 

6,700

6,400

fe.oso

f5,79j

f 5,511) 

f5,000 

5,830 

8.01C 

11,400

14,400 

17,200 

18,900 

20,200 

19,800

15,400 

11,900 

14,400 

19,100 

22,600

22,400 

19,100 

18,000 

19,400 

20,900 

20,200

Maximum

4,940 

4,610 

3,800

25,300

3,550

4,500 

4,900 

14,300 

22,600 

27,300 

24,500 

6,270 

7,390

27,300

June

20,600 

21,000 

21,500 

21,000 

18,200

17,100 

19,200 

24,000 

27,300 

27,100

23,900 

20,900 

20,200 

20,200 

20,100

19,400 

20,200 

21,800 

23,000 

21,800

20,800 

20,300 

21,000 

22,900 

25,400

27,000 

26,500 

24,000 

21,700 

20,800

July

21,900 

23,300 

24,300 

24,500 

23,700

22,200 

22,100 

22,100 

22,500 

22,100

21,100 

20,700 

19,300 

16,800 

13,100

10,700 

9,150 

7,800 

6,540 

5,950

4,870 

4,270 

5,000 

5,060 

4,840

4,840 

4,780 

4,900 

5,440 

6,240 

6,150

Minimum

3,070 

3,090 

2,700

1,650

1,750 

2,100 

3,310 

4,000 

5,000 

17,100 

4,270 

3,550 

3,310

1,750

Aug.

5,440 

4,550 

4,270 

4,940 

5,730

6,270 

6,020 

5,190 

4,490 

4,200

4,270 

4,720 

5,150 

5,150 

4,810

4,360 

3,970 

3,920 

3,900 

4,270

4,640 

4,380 

4,360 

4,200 

3,950

3,660 

3,660 

3,780 

3,800 

3,680 

3,550

Mean

3,967 

3,788 

3 , 102

5,716

2,427 

3,007 

3,888 

9,037 

12,980 

21,960 

13,430 

4,493 

4,450

7,217

Sept.

3,460 

3,400 

3,310 

3,440 

3,310

3,310 

3,620 

3,970 

5,000 

7,260

7,390 

6,440 

5,630 

5,470 

5,510

5,310 

5,250 

4,840 

4,440 

4,170

3,950 

3,800 

3,870 

3,900 

3,970

3,870 

3,830 

3,850 

3,900 

4,040

Runoff In 

acre-feet

243,900 

225,400 

190,700

4,138,000

149,300 

167,000 

239,100 

537,700 

798,300 

1,307,000 

825,600 

276,300 

264,800

5,225,000

* Winter discharge measurement made on this day.

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

Blackf oot.

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

Note . - -Stage -discharge relation affected by ice Dec. 12-15, Dec. 17 to Mar

near Helse and near
SHAKE RIVER MAIN STEM 21 

Diversions from Snake River "between Shelley and Elaekfoot gaging stations, Idaho

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

for irrigation. Records available J iring each irrigation season from 1919 to 1950. 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 gooi.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Th

lendar year

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

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

e period ................................

Mar. Apr.

Secondfoot-days

74,680 

83,820 

107,170 

99,780 

62,040

-

May

1,120 

1,110 

1,180 

1,350 

1,500

1,700 

1,800 

1,930 

2,180 

2,330

2,530 

2,670 

2,780 

2,840 

2,990

3,160 

3,140 

3,070 

2,870 

2,720

2,640 

2,680 

2,780 

2,830 

2,830

2,760 

2,650 

2,600 

2,580 

2,620 

2,740

Maximum

3,160 

3,370 

3,980 

3,800 

3,090

-

June

2,790 

2,830 

2,690 

2,680 

2,720

3,060 

3,070 

2,530

2,220 

2,230

2,260 

2,410 

2,540 

2,780 

2,950

3,100 

3,230 

3,180 

3,200 

3,170

3,370 

3,210 

2,900 

2,640 

2,480

2,460 

2,500 

2,540 

2,830 

3,240

July

3,360 

2,800 

2,680 

2,860 

3,130

3,160 

3,070 

3,130 

3,260

3,170

3,080 

3,180 

3,190 

3,330 

3,520

3,570 

3,680 

3,650 

3,620 

3,830

3,740 

3,480 

3,790 

3,800 

3,800

3,840 

3,830 

3,890 

3,980 

3,950 

3,800

Minimum

1,110 

2,220 

2,680 

2,910 

1,400

-

Aug.

3,570 

3,740 

3,720 

3,800 

3,710

3,450 

3,390 

3,420 

3,440 

3,500

3,520 

3,320 

3,060 

3,020 

3,020

3,060 

3,090 

3,020 

3,020 

3,060

3,110 

3,000 

3,160 

2,980 

2,930

2,930 

2,930 

2,960 

2,910 

2,970 

2,970

Mean

2,409 

2,794 

3,457 

3,219 

2,068

-

Sept.

2,960 

2,880 

2,850 

2,950 

2,970

2,980 

3,080 

3,090 

2,740 

2,310

1,920 

1,780 

1,700 

1,660 

1,600

1,550 

1,590 

1,630 

1,650 

1,660

1,720 

1,780 

1,750 

1,730 

1,710

1,690 

1,650 

1,580 

1,480 

1,400

Runoff in 

acre -feet

148,100 

166,300 

212,600 

197,900 

123,100

848,000
22 SNAKE RIVER MAffl STEM

Snake River near Blackfoot, Idaho

Location. Water-stage recorder, lat. 43°07', long. 112°31', in SE£ sec. 30, T. 3 S., R. 34 

E., 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 1950.

Extremes. Maximum discharge during year, 26,300 second-feet June 10 (gage height, 11.12 

1'eet); minimum, 546 second-feet Sept. 6 (gage height, 1.17 feet).

1910-50: 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 just 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.53), Island Park Reservoir (see p.45), Grassy Lake (see p.53), and BlackfootMarsh Reservoir, having a combined capacity of 1,483,000 acre-feet. Many diversions 

above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,74O 

a2 , ZOO 

2,69O 

2,640 

2,39O

2,370 

2,440 

2,570 

2,88O 

3,08O

3,080 

3,110 

a3,4OO 

a3,7OO 

a3,75O

a3,750 

3,790 

3,780 

4,150 

4,740

4,840 

4,740 

4,590 

4,480 

4,410

4,280 

4,260 

4,190 

4,170 

4,150 

4,230

Nov.

4.15O 

4,100 

4,06O 

4,030 

4,100

a4,lOO 

4.1OO 

4,080 

4,170 

4,420

34,600 

4,690 

4.5OO 

4,280 

4, ISO

4,O8O 

3,990 

3,740 

3,480 

a3,400

a3,350 

3,220 

3,200 

3,190 

3,250

3,460 

3,610 

3,580 

3,580 

3,940

Dec.

3,990 

3,830 

3,670 

3,540 

3,460

3,240 

3,220 

3,24O 

3,650 

3,49O

2,87O 

2,570 

2,82O 

2,950 

3,16O

3,040 

2,690 

2,820 

3,110 

3,090

3,040 

2,750 

2,540 

2,600 

2,600

2,870 

2,520 

2,420 

2,510 

2,810 

2,840

Jan.

3,010 

2,87O 

2,39O 

1,870 

1.9OO

1,490 

1,460 

1,470 

1,87O 

2,OOO

2,210 

2,280 

2,370 

2,130 

1,750

1,560 

1,760 

1,49O 

1,640 

2,O30

2,410 

2,980 

3,480 

3,420 

3,320

3,040 

2,740 

2,480 

2,O4O 

2,350 

a2,400

Feb.

a2,350 

a2,300 

2,230 

2,O50 

2,O3O

2,170 

2,600 

3,140 

3,42O 

3,290

3,170 

2,960 

2,880 

2,920 

2,860

2,860 

3,O10 

3,O80 

3,120 

3,2OO

3,140 

3,090 

3,110 

3,160 

3,290

3,700 

4,300 

4,480

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

M»v

June 

July 

Augu 

Sept

Wa

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

lendar year 194 

ary

uary. ...................................

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

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

Mar.

4,940 

4,630 

4,21O 

4,060 

4,230

4,230 

4,35O 

4,410 

3,960 

3,780

3,72O 

3,630 

3,46O 

3,37O 

3,390

3,410 

3,390 

3,460 

3,940 

4,330

4, ISO 

3,920 

3,700 

3,610 

3,540

3,49O 

3,58O 

3,78O 

3,900 

3,870 

3,79O

Apr.

3,790 

3,990 

5,01O 

6,270 

5,990

5,330 

5,07O 

5,550 

6,290 

7,070

7,25O 

6,790 

6,76O 

7,350 

8,44O

8,960 

9,410 

10,600 

11,7OO 

11.8OO

11,400 

12,000 

13.3OO 

14,100 

13,6OO

12,1OO 

1O,9OO 

10,5OO 

1O, 6OO 

9,980

Secondfoot-days

110,590 

116,600 

93,95O

1,621,678

7O.21O 

83,91O 

120,230 

261,900 

333.OOO 

577,900 

315,146 

54,270 

88,407

2,226,113

May

8,960 

8,260 

7, 77O 

7,07O 

6,500

6,O5O 

5,71O 

5,310 

4,740 

4,48O

4.1OO 

3,300 

3,040 

4,300 

6,990

9,920 

12.9OO 

14,800 

16.4OO 

17,400

14.5OO 

1O.5OO 

10,7OO 

13,9OO 

18,000

20,2OO 

18.6OO 

16,1OO 

16,4OO 

18,100 

18,OOO

Maximum

4,840 

4,69O 

3,990

24.30O

3,480 

4,480 

4,940 

14,100 

20.2OO 

26,100 

21,300 

3,370 

6,120

26, 1OO

June

17,8OO 

18,2OO 

19,OOO 

19,400 

17,300

14,800 

15.4OO 

19,8OO 

24,100 

26,100

24,000 

20,200 

18,300 

17, 7OO 

17,2OO

16,5OO 

15,8OO 

17,4OO 

19,200 

18,7OO

17,5OO 

16,7OO 

17,4OO 

19,OOO 

21,800

23,9OO 

24,5OO 

22,8OO 

19,700 

17,700

July

18.OOO 

19,500 

20,900 

21,3OO 

20,800

19,100 

18,6OO 

18,500 

18,5OO 

18,9OO

18,OOO 

17,5OO 

16,400 

14,2OO 

11,OOO

8,580 

6,520 

5,01O 

3,690 

2,580

2,030 

1,060 

h896 

hi, 900 

hl,8OO

hl,O5O 

hl,O90 

hl,O50 

1,550 

2,270 

2,870

Minimum

1,740 

3,190 

2,420

27O

1,46O 

2,030 

3,37O 

3,79O 

3,040 

14,800 

896 

1.O7O 

588

588

Aug.

2,570 

1,660 

1,O7O 

1,240 

2,120

3,OOO 

3,370 

2,520 

1,820 

1,240

1,1OO 

1,480 

2,380 

2,8OO 

2,450

2,O70 

1,520 

1,260 

1,230 

1,450

1,960 

1,910 

1,700 

1,630 

1,540

1,210 

1,100 

1,280 

1,250 

1,240 

1,100

Mean

3,567 

3,887 

3,031

4,443

2,265 

2,997 

3,878 

8,73O 

10,740 

19,26O 

1O,170 

1,751 

2,947

6,099

Sept.

978 

864 

816 

751 

688

588 

648 

944 

1,940 

4,280

6,120 

5,69O 

5,O10 

4,670 

4,690

4,56O 

4,390 

4,210 

3,830 

3,37O

2,930 

2,740 

2,720 

2,900 

a2,900

a2,900 

a2,9OO 

2,960 

3,170 

3,250

Runoff In 

acre-feet

219,400 

231,300 

186,300

3,217,OOO

139,300 

166, 4OO 

238,500 

519.5OO 

660,500 

1,146,000 

625, 1OO 

107,600 

175,400

4,415,000

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

h Computed from staff-gage reading.

ear Shelley.
SNAKE RIVER MAIN STEM 23

American Falls Reservoir at American Falls, Idaho

Location. Water-stage recorder, lat. 42°46', long. 112°53', in sec. 30, T. 7 S., 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 1926 to September 1950.

Extremes. Maximum contents during year, 1,723,730 acre-feet July 7 (elevation, 4,354.92 

feet ) ; minimum, 535,910 acre-feet Oct. 1 (elevation, 4,327.36 feet).

1926-50: 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. 22, 1931 (elevation, 4,299.72 feet).

Remarks. --Reservoir is formed by concrete gravity dam with earth dikes at each end; partial storage began in 1926, full storage in 1927. Capacity, 1,700,000 acre-feet between elevations 4,295.66 feet (bottom of outlet gate) and 4,354.50 feet (top of spillway radial gates). Small amount of dead storage. Water is used for irrigation by 

canals diverting from Snake River at Hlnidoka and Milner Dams. Contents given herein 

are computed from mean daily elevations; all available for release.

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

Daily contents, in thousands of acre-feet, water year, October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 zn

OU

31

Oct.

536

541

548

550

547

551

551

555

557

564

568

571

576

580

584

589

601

606

617

626

632

642

653

666

675

684

692

700

708

719

731

Nov.

740

750

760

769

778

788

801

809

818

829

840

851

863

877

886

897

905

914

922

931

941

949

956

961

971

979

986

995

1,008

1,014

-

Dec.

1,024

1,030

1,038

1,049

1,056

1,064

1,072

1,077

1,083

1,090

1,099

1,105

1,113

1,120

1,126

1,128

1,133

1,140

1,149

1,153

1,160

1,165

1,169

1,171

1,179

1,187

1,193

1,197

1,202

1,204

1,209

Jan.

1,215

1,222

1,226

1,231

1,234

1,237

1,238

1,241

1,244

1,250

1,251

1,254

1,260

1,263

1,266

1,271

1,274

1,281

1,283

1,286

1,289

1,294

1,503

1,310

1,315

1,322

1,326

1,328

1,333

1,339

1,342

Feb.

1,345

1,347

1,349

1,352

1,354

1,359

1,361

1,365

1,369

1,373

1,377

1,382

1,386

1,390

1,394

1,397

1,400

1,404

1,405

1,409

1,414

1,419

1,423

1,427

1,432

1,436

1,441

1,448

_

_

-

Mar

1,455

1,462

1,469

1,475

1,479

1,479

1,493

1,499

1,504

1,507

1,515

1,516

1,522

1,528

1,529

1,534

1,535

1,535

1,537

1,539

1,541

1,538

1,541

1,543

1,539

1,536

1,531

1,530

1,532

1,531

1,527

Apr.

1.P2Z

1,518

1,519

1,525

1,526

1,522

1,519

1,514

1,513

1,509

1,512

1,513

1,510

1,509

1,509

1,513

1,510

1,520

1,525

1,530

1,535

1,537

1,538

1,546

1,549

1,551

1,551

1,552

1,552

1,552

May

1,551

1,546

1,547

1,545

1,533

1,533

1,530

1,518

1,513

1,512

1,509

1,503

1,494

1,483

1,477

1,476

1,477

1,479

1,487

1,495

1,497

1,493

1,477

1,476

1,474

1,477

1,483

1,481

1,481

1,482

1,492

June

1,505

1,535

1,549

1,571

1,596

1,611

1,621

1,639

1,668

1,692

1,707

1,711

1,710

1;706

1,711

1,711

1,712

1,713

1,713

1,712

1,706

1,704

1,708

1,711

1,713

1,721

1,719

1,716

1,712

1,707

July

1,703

l',698

1,700

1,707

1,715

1,721

1,724

1,718

1,712

1,710

1,711

1,714

1,714

1,711

1,705

1,703

1,701

1,696

1,683

1,671

1,657

1,642

1,625

1,609

1,593

1,578

1,561

1,545

1,520

1,508

1,495

Aug.

1,481

1,467

1,450

1,438

1,419

1,408

1,397

1,386

1,374

1,362

1,348

1,334

1,321

1,310

1,302

1,292

1,281

1,267

1,253

1,238

1,224

1,211

1,193

1,182

1,170

1,156

1,139

1,123

1,109

1,095

1,081

Sept.

1,067

1,050

1,039

1,020

1,006

990

976

962

951

946

941

938

937

938

936

937

935

936

934

932

932

929

928

927

927

923

924

926

926

926

Monthly elevation and contends, water year October 1949 to September 1950

Date

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

Calendar year 1949. .......

Feb. 28........ .............

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

-Elevation 

(feet)

4,345.01

-

4,338.60

Contents 

(acre-feet)

1.209.Z30

-

925,620

Change in contents 

during month 

(acre-feet)

+195,880

+195,230

+20, 7 30

-155,220
24 SHAKE RIVER MAIN STEM

Snake River at Neeley, Idaho

Location. Water-stage recorder, lat. 42°4S' ) long. 112~°54', in SWjj sec. 31, T. 7 £., R. 

31 E., 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. 83., R. 30 E., half a mile north of Neeley and 2| miles downstream 

from present site, by adding inflow between sites.

Records available.--March 1906 to September 1950.

Extremes.--Maximum discharge during year, 29,000 second-feet June 27 (gage height, 9.71 

feet); minimum, 138 second-feet Oct. 3 (gage height, 1.53 feet).

1906-50: Maximum daily discharge, 48,400 second-feet June 20, 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 preceding 

page) 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 upstream from station.

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

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

30

21 

22 

23 

34 

25

36 

37 

28 

29 

30 

31

Oct.

4,470 

181

5,060 

5,070 

5,070

5,050 

5,070 

5,070 

175 

5,060

5,100 

5,070 

5,070 

5,070 

5,100

188 

4,330 

3,700 

3,760

3,250

2,950 

2,950 

175 

3,020 

3,000

2,990 

Z , 990 

3,010 

3 , 000 

179 

2,500

Nov.

2,220 

2,220 

,220 

,270 

,240

188 

,250 

,250 

,260 

,260

,180 

,190 

167 

, 220 

,210

, 220 

,210 

,250 

,250

165

,240 

,180 

,180 

,170

,160

,210 

169 

,520 

,560 

,610

Dec.

2,600 

2,610 

2,610 

167 

2,630

2,620 

2,630 

2,710 

2,570 

2,530

163 

2,600 

2 , 600 

2,610 

2,610

3,100

3,120 

162 

3,160 

3 , 200

3,210 

3,210 

3,230 

3,180 

210

3,190 

3,190 

3,130 

3,340 

3,290 

3,340

Jan.

530 

3,370 

3,440 

3,390 

3,130

3,210

3,160 

1,380 

3,140 

3 . 190

3,170 

3,170 

3 , 240

3,250 

2 , 100

3,270

3,240 

3,240 

3,220 

3,280

3,300 

2,130 

3,670 

3,670 

3,670

3,720 

3,760 

3,760 

2,230 

3,850 

4,140

Feb.

3,760 

3,850 

4,240 

4,240

2,780

4,250 

4,260 

4, 290 

4,280 

4, £70

3,920 

2,550 

4,710 

3,910 

3,930

3,950 

3,890 

4,500 

4,880 

4,640

3,910 

3,930 

4,130 

4,440

4,650

3,570 

5,160 

4,460

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

ber.. ...................................

lendar year 194

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

Mar.

4, 470 

4,510 

4,490

4,690 

3,260

5,230 

4,500 

4,410 

4,590 

4,580

4,660 

2,920 

4,970 

4,540 

4,560

4,540

4,830 

6,910 

6,910 

6,910

6,910 

6,870 

6 , 830 

7,430 

7,870

7,830 

7,870 

7,830 

7,830 

7,870 

7,870

Apr.

7,870 

7,870 

7,870 

8,320 

9,750

10, 200 

1C, 300 

10,300 

10,300 

10,300

10,300 

10,400 

10,500 

10 , 500 

10,500

10,bOO 

10,900 

11,100 

11,400 

11,500

12,300 

13,400 

13,900 

14,500 

14,900

14,900 

15,000 

14,100 

13,100 

12,700

Secondfoot-days

107,678 

59,459 

79,622

938

97,620 

115,350 

179.490 

339,480 

456,920 

561,140 

513,600 

353,600 

252,050

3,116,009

May

12,700 

12,700 

12,700 

12,700 

12,700

12,600 

12,600 

11,900 

10,100 

8,910

9,510 

10,6OO 

11,000 

10,900 

11,600

12,600 

13 , 100 

14,100 

16.1DO

18,100

19,600 

19,600 

19,500 

19,400 

19,300

19 , 400 

19,500 

19,500 

19,500 

19,500 

14,900

Maximum

5,10O 

2,610 

3,340

16,000

4,140

5,160 

7,870 

15,000 

19,600 

25,900 

25,400 

12,100 

11,700

28,900

June

11,600 

11,000 

10,100 

9,560 

9,980

10,600 

10,900 

11,OOO 

12,300 

18,100

21,800 

24,600 

23,900 

19,900 

19,200

19,100

19,100 

20,100 

21,700 

23,100

21,400 

18,800 

19,000 

L0.600 

21,700

25,300 

28,900 

28,100 

26,400 

23,300

July

23,200 

23,000 

21,300 

20,700 

20,000

20,600 

22,800 

25 , 400 

23,400

21,700

20,500 

20,000 

19,800 

19,100 

16,600

12,400

11,300 

11,800 

12,500 

12,700

12,300 

12,100 

12,100 

12,100 

12,100

12,000 

12,000 

12,400 

-12,700 

12,600 

12,400

Minimum

175 

165 

16E

82

530 

2,550 

2,920 

7,870 

8,910 

9,560 

11,300 

10,200 

5,700

162

Aug.

12,100 

12,100 

12,000 

11,900 

11,900

11,800 

11,400 

10,9OO 

10,9OO 

11,100

11,300 

11,300 

11,200 

10,600 

10,200

10,600 

11,200 

11,500 

11,600 

11,500

11,400 

11,400 

11,400 

11,300 

11,500

11,800 

11,900 

11,800 

11,500 

11,300 

11,200

Mean

3,473 

1,982

2,568

7,219

3,149 

4,120 

5,790 

11,320 

14, 740 

18,700 

16.570 

11,410 

8,402

8,537

Sept.

11,200 

11,200 

11,500 

11,700 

11,600

1 1 , 400 

1 1 , 200 

1O, 700 

1O,3OO 

9,940

9,420

9,180 

8,720 

7,780 

7,470

7,470 

7,470 

7,430 

7,430 

7,430

7,170 

6,700 

6,360 

6,190 

5,990

5,940 

5,940 

5,780 

5,700 

5,740

Runoff In 

acre-feet

213,600 

117,900 

157,900

5,226,000

193,600 

228,800 

356,000 

673,300 

906,300 

1,113,000 

1,019,000 

701,400 

499,900

6,181,000
SNAKE RIVER MAIN STEM 25

Lake Walcott near Minidoka, Idaho

Location. Staff gage, lat. 42°40', long. 11?°29', in sec. 1, T. 9 S. , R. 25 E. , in 

powerhouse at Minidoka Dam on Snake River, 6 miles southeast of Minidoka. Datum of 

gage is 4,200.00 feet above datum of Bureau of Reclamation, which is 49.52 feet bftlow 

mean sea level.

Records available. April 1909 to September 1950.

Extremes.--Maximum contents during year, 99,280 acre-feet Oct. 22 (gage height, 45.34

 feet); minimum, 52,030 acre-feet Dec. 19 (gage height, 41.14 feet).

1909-50: 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 below gage height 36.00 feet, about 

115,000 acre-feet. Gage read at 8 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 recurd and capacity table furnished "by Bureau of Reclamation.

Contents, in acre-feet., water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

95,180

95 , 070

87,500

88,660

88,900

90,530

90,880

93,320

92,620

86,100

89,480

91,230

93,900

96,150

98,320

97,840

94,490

95,670

96,390

97,720

98,680

99,280

98,320

94,140

94,950

95,910

96,150

96,510

96,990

97,230

92,970

Nov.

90,060

86 , 800

86,100

84,940

84,590

83,660

79,260

78,240

78,350

78,580

77,680

77,230

75,980

71,830

71,170

70, 950

70,400

69,850

69,190

68,530

64,470

63,920

63,480

61,720

62,710

62,160

60,420

56,660

57,410

56,980

-

Dec.

58,480

58,480

58,810

58,910

54,400

55,040

55,470

55,900

56,010

55,900

55,690

52,250

52,780

53,540

55,040

53,750

55,040

55,790

52,030

53,640

55,260

56,660

58,050

59,130

61,280

60,960

65,010

65,670

66,770

67,540

68,200

Jan.

68,090

64,360

65,670

66,990

67,650

67,870

68,090

68,090

66,770

67,430

67,650

68,090

68,090

68,420

68,090

66,660

68,310

69,190

68,970

68,750

68,750

68,750

67,430

67,870

68,310

68,310

68,530

68,750

68,530

66,770

68,640

Feb.

68,750

68,530

69,190

69,520

69,350

68,750

69,740

69,850

69,740

69,740

69,190

68,750

68,530

68,970

68,970

68,640

68,970

68,970

72,160

69,630

69,410

68,090

67,100

67,210

67,540

68,530

66,990

67,650

-

-

-

Mar

67,760

67,540

67,650

67,870

68,530

65,plO

68,090

69,190

69,850

69,630

69,850

69,410

69,190

69,850

69,630

69,850

68,970

73,730

74,180

74,970

74,970

74,290

73,620

73,840

77,000

79,260

80,160

82,410

84,700

85,750

86,920

Apr.

85,870

85,170

85,400

86,100

86,800

87,270

39,010

88,780

88,550

88,660

88,900

88,660

88,660

88,430

88,430

88,660

87,270

89,600

89,360

89 , 600

89,360

90,990

88,660

91,230

89,830

90,290

90,130

90,410

89,130

89,250

May

89,130

88,900

89,360

87,850

88,900

89,600

89,130

88,900

87,850

86,570

85,290

85,750

86,450

86,100

85,640

87,500

89,130

89,360

93,200

95,670

95,910

95, 180

94,490

94,720

94,720

94, 950

94,950

94,250

94,720

94,720

95,180

June

95,070

95,790

95,180

94,020

93,670

93,900

93,900

95,910

96,870

97,470

97,230

97,720

96,630

95,790

95,910

94,950

94,600

95,310

95,790

96,150

96,510

95,430

95,550

95,070

96,750

96,750

96,990

96,870

96,630

96,390

July

95,550

95,430

95,310

95,180

95,430

95,180

95,670

95,670

95,790

95,670

94,250

95,310

94,720

94,020

94,370

94,020

92,390

93,090

92,390

94,250

95,430

95,910

94,950

95,670

95,070

95,790

95,670

94,950

94,020

95,670

96,990

Aug.

97,110

97,110

97,350

97,110

96,390

97,110

97,590

97,590

96,750

96,630

96,990

96,630

97,110

97,350

96,150

94,950

94,490

94,490

94,950

94,950

94,600

94,720

93,440

93,550

93,090

93,790

93,790

94,490

95,180

95,430

94,720

Sept.

94,490

94,140

93,900

94,020

94,490

95,180

95,180

95,670

95,310

96,630

96,630

95,910

96,390

95,670

94,840

94,020

93,200

92,860

92,390

93,320

95,430

96,150

96,870

96,990

96,870

96,390

95,180

95,180

94,020

93,200

Monthly gage height and water year October 1949 to September 19SO

Date

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

Calendar year 1949 ......

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

Water year 1949-50 ......

Gage height 

(feet)

44.81

42.63

-

4-4.83

Contents 

(acre-feet)

95,310

92,97O

56,980

68,200

-

67,650

95,180

94,72O

93,200

'

Change in contents 

during month 

(acre-feet)

-2,340

-35,990

+11,220

-24,890

-990

+2,33O

+5,930

+SOO

-2,270

-1,520

-2,110

253646 O - 53 - 3
26 SNAKE RIVER MAIN STEM

Snake River near Minidoka, Idaho

Location. Water-stage recorder, lat. 42°40 T , long. 113°30', in sec. 2, T. 93., R. 25 

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

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

Records available . April 1910 to September 1950. August 1895 to December 1899 and May 

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

Extremes.--Maximum discharge during year, 26,800 second-feet June 28 (gage height 12.61 

1'eet)'; minimum, 312 second-feet Dec. 15 (gage height 2.35 feet).

1910-50: 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. Flow regulated by American Falls Reservoir (see p. 23 ), Lake 

waicott (see preceding page), and other reservoirs, having a combined usable capacity 

of about 3,300,000 acre-feet; many diversions above station for irrigation.

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

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3,310 

3,310 

3,310 

3,330 

3,350

3,330 

3,370 

3,370 

3,370 

3,370

3,330 

3,370 

3,330 

3,310 

3,310

3,230 

2,710 

2,750 

2 , 750 

2,740

2,770 

2,840 

2,770 

2,740 

2,790

2,840 

2,870 

2,890 

3,000 

2,980 

3,160

Nov

4,230 

4,06u 

2 ,940 

2,900 

2 ,900

2,880 

2,870 

2,870 

2,860 

2,880

2,880 

2,860 

2,86.0 

2,860

2,860

2,830 

2,830 

2,840 

»2,840 

2,810

2,830 

2,840 

2,860 

2,900 

2,840

2,840 

2,890 

2,850 

2,800 

2,830

Dec.

2,800 

2 , 80C 

2,790

2 , 7 60 

2,800

2,800 

2,820 

2,810 

2,880 

2,780

2,700 

2,700 

2,790 

2,770 

b2,290

b3,770 

b3,030 

2,850 

2,960 

b2,850

b2,850 

b2,850 

*2,930 

b2,900 

bl,170

b940 

b2,500 

b2,900 

b3,000 

b3,050 

b3,200

Jan.

3,340 

3,050 

b2,800 

b2,80u 

b3,100

b3,300 

b3,400 

3,210 

3,200 

3,270

3,410 

3,480 

b3,400 

b3,350 

b3,350

3,350 

3,610 

3,960 

3,770 

3,690

3,690 

3,720 

3,760 

b3,700 

b3,400

b3,950 

4,100 

4,360 

4,080 

3,160 

b4,100

Feb.

b4,16C 

b4,160 

b4,160 

»b4,160 

4,650

,110 

,590 

,620 

,600 

,590

,560 

,110 

,870 

,140 

,250

,170 

,190 

,220 

,580 

,590

,390 

,850 

,630 

,590 

,650

,720 

,670 

,740

Month

Octo 

Hove 

Decs

Ca

janu 

Febi 

Hare 

Aprl 

Hay.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

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

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

* Winter discharge measurement made on thi 

b Stage-discharge relation affected by Ice

Mar.

4 , 650 

4,590 

4,590 

4,520 

4,720

4,760 

4,320 

4,410 

4,540 

4,520

4,520 

4,540 

4,230 

4,610 

4,670

4,670 

4,670 

6,080 

6,930 

7,270

7,130 

7,730 

7,700 

6,460 

6,310

7,070 

6,540 

7,790 

7,790 

7,130 

7,500

Apr.

8,540 

8,390 

8,330 

8,540 

8,930

9,670 

10,200 

10 , 5OO 

10,400 

10,500

10,600 

10,400 

10,300 

10,500 

10,500

10,600 

10,200 

11,100 

11,000 

11,100

11,200 

12,300 

13,200 

14,400 

14,100

14,000 

13,900 

13,500 

11,800 

11,300

Secondfoot-days

95,900 

88,340 

85,040

2,307,700

108,860 

124,720 

176,910 

330,000 

386,000 

499,680 

419,610 

272,990 

211,130

2,799,180

s day.

Hay

11,200 

11,200 

11,300 

11,100 

11,400

11,700 

11,500 

11,200 

10,200 

8,810

8,000 

8,180 

8,660 

8,600 

8,630

9,110 

9,140 

9,670 

11,900 

14,000

17,000 

16,800 

16,600 

16,600 

16,200

16,300 

16,500 

16,700 

16,900 

17,100 

13,800

Maximum

3,370 

4,230 

3,770

14,100

r 4,360 

5,580 

7,790 

14,400 

17,100 

26,700 

21,700 

9,240 

9,020

26,700

June

9,080 

9,140 

8,840 

8,270 

8,150

8,240 

8,780 

9,480 

10,400 

15 , 700

18,900 

21,900 

24,000 

17,900 

17,000

16,700 

16,800 

17,600 

18,900 

20,800

20,000 

17,000 

16,900 

18,100 

20,000

22,500 

26,700 

26,400 

24,600 

20,900

July

19,400 

2O.10O 

18,200 

17,400 

16,800

16,600 

18,300 

21,700 

20,900 

18,700

17,600 

17,300 

17.000C 

16,600 

14,800

11,400 

8,930 

8,690 

9,300 

9,210

9,180 

9,080 

9,140 

9,020 

8,990

9,020 

9,020 

9,240 

9,420 

9,390 

9,180

Minimum

2,710 

2,800 

940

940

2,800 

3,870 

4,230 

8,330 

8,000 

8,150 

8,690 

8,270 

5,330

940

Aug.

9,180 

9,180 

9,240 

9,140 

9,140

9,020 

8,900 

8,720 

8,690 

8,630

8,630 

8,600 

9,570 

8,450 

8,270

8,480 

8,510 

8,600 

8,750 

8,780

8,810 

8,810 

8,930 

8,810 

8,840

8,810 

8,930 

8,960 

8,930 

8,840 

8,840

Mean

3,094 

2,945 

2,743

6,322

3,512 

4,454 

5,707 

11,000 

12,450 

16,660 

13,540 

8,810 

7,038

7,669

Sept.

8,840 

8,810 

8,810 

8,870 

8,990

9,020 

8,870 

8,660 

8,330 

7,970

7,910 

7,790 

7,560 

7,160 

6,790

6,760 

6,740 

6,630 

6,310 

3,830

5,640 

5,490 

5,330 

5,350 

5,350

5,440 

5,520 

5,400 

5,440 

5,520

Runoff in 

acre-feet

190,200 

175,200 

168,700

4,577,000

215,900 

247,400 

350,900 

654,500 

765,600 

991,100 

832,300 

541,500 

418,800

5,552,000
SNAKE RIVER MAIN STEM 2.7

Snake River at Milner, Idaho

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

JE., sit Milner, a quarter of a mile downstream from Milner Dam. Altitude of age, 4,062 

feet (from river-profile map).

Records available. May 1909 to September 1950.

Extreme&. Maximum discharge during year, 18,800 second-feet June 28 (gage height, 18.60 

feet)'; minimum, 26 second-feet July 18-19 (gage height, 2.11 feet).

1909-50: 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 Palls Reservoir (see p. 23 ), Lake Walcott (see p.25 T and other reservoirs having a combined usable capacity of about 

3,300,000 acre-feet.

Atout 1,330,000 acres of land irrigated by diversion form river and its tributaries 

above station, from which the return flow in large part enters Snake River between Milner and King Hill stations. 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 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct..

942 

2,170 

2,260 

2,240 

2,150

2,370 

1,960 

1,750 

1,750 

1,860

2,010 

2,320 

2,550 

3,230 

3,320

3,160 

2.S1O 

2,020 

2,240 

3,OSO

3, 700 

3,070 

2,7'20 

1,920 

913

1,0130 

1,2130 

1,810 

1,8!JO 

1,910 

1,9!50

Nov.

2,120 

3,300 

2,490 

1,950 

1,970

1,960 

1,950 

1,910 

1,930 

1,950

2,180 

2,540 

2,470 

2,470 

2,270

1,940 

1,890 

1,920 

1,970 

1,950

1,960 

1,950 

1,910 

1,830 

1,820

1,910 

1,870 

1,880 

1,910 

1,880

Dec.

1,900 

1,890 

1,940 

1,970 

1,930

1,950 

2,090 

2,010 

1,940 

1.76O

1,690 

1,690 

2,060 

2,180 

2,070

2,020 

2,090 

2,100 

2,230 

2,17O

2,O9O 

2,120 

2,250 

2,2*5 

2,UO

1,310 

519 

894

2,q?o

2,260 

2,S20

Jan.

2,680 

2,630 

2,020 

1,98O 

2,310

2,950 

2,740 

2,610 

2,540 

2,650

2,610 

2,640 

2,610 

2,590 

2,610

2,690 

2,680 

2,740 

3,080 

3,400

3,470 

3,680 

3,660 

3,290 

2,72O

2,850 

3,350 

3,680 

3,64O 

3,400 

2,98O

Feb.

3.O80 

3,280 

3,360 

3,46O 

3,880

4,040 

3,990 

4,040 

4,180 

4,200

4,110 

4,080 

3,990 

3,920 

3,630

3,630 

3.6OO 

3,590 

3,730 

3,970

3,930 

4,040 

4,010 

3,920 

3,940

3,950 

3,83O 

3,960

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-5O .......................

Mar.

4,060 

3,990 

3,960 

4,040 

3,980

3,550 

4,050 

3,920 

3,860 

3,880

3.92O 

3,910 

3,920 

3,840 

3,850

3,920 

3,960 

4,060 

5,770 

6,340

6,740 

6,57O 

7,100 

7,370 

5,960

5,960 

6,220 

6,720 

7,740 

7,760 

7,200

Apr.

6,680 

7,080 

7,170 

7,56O 

8,120

8,240 

8,650 

8,9OO 

8,68O 

8.65O

9,040 

9,040 

8,850 

8,730 

8,830

8,910 

8,120 

7.81O 

7,990 

7,78O

7,530 

7,560 

7,940 

9,250 

9,680

8,760 

8,420 

7,030 

7,220 

5,870

Secondfoot-days

68,065 

62,050 

60,113

898,955

89,160 

107,340 

158, 120 

244,090 

149,799 

252,201 

149,877 

11,435 

16,193

1,368,433

May

5,690 

4,970 

4,530 

4,530 

4,530

4,960 

4,930 

4,660 

3,88O 

2,220

538 

212 

438 

757 

399

930 

930 

855 

2.80O 

5,240

8,610 

9,040 

8,400 

7,950 

8,400

7,92O 

8,08O 

8,100 

8,520 

8,470 

8,31O

Maximum

3,700 

3,300 

2,520

1O,7OO

3,68O 

4,200 

7.76O 

9,680 

9,040 

18,400 

13,200 

646 

2,19O

18,400

June

796 

960 

1,360 

866 

277

195 

163 

364 

1,850

5,700

9,770 

13,000 

16,400 

10, 800 

8,820

8,42"o 

8,240 

8,69O 

10, 300 

12,500

12,800 

9,160 

8,640 

9,330 

12,10O

13,300 

17,800 

18,400 

17,000 

14,200

July

10,900 

12,200 

10,400 

8,870 

8,590

7,470 

8,820 

12,400 

13,200 

10,100

9,030 

8,520 

8.O10 

7,380 

5,990

3,610 

451 

26 

26 

290

431 

262 

296 

293 

296

296 

291 

285 

277 

307 

560

Minimum

913 

1,820 

519

11

1,980 

3,080 

3,550 

5,870 

212 

163 

26 

288 

293

26

Aug.

386 

307 

302 

523 

452

646 

572 

441 

316 

319

316 

310 

425 

530 

322

. 293 

296 

296 

296 

299

299 

305 

296 

288 

296

307 

310 

512 

418 

418 

339

Mean

2,196 

2,068 

1,939

2,463

2,876 

3,834 

5,101 

8,136 

4,832 

8,407 

4,835 

369 

540

3,749

Sept.

313 

389 

512 

307 

376

462 

462 

490 

572 

445

526 

333 

630 

497 

293

302 

305 

494 

646 

508

476 

455 

386 

501 

504

512 

441 

776 

1,090 

2,190

Runoff In 

acre -feet

135,000 

123,100 

119,200

1,783,000

176,800 

212, 9OO 

313,600 

484,100 

297,100 

500,200 

297,300 

22,680 

32,120

2,714,000
28 SNAKE RIVER MAIN STEM

Snake River near Kimberly, Idaho

Location.--Water-stage recorder, lat. 42°36', long. 114 0 22', in NW^ sec. 4, T. 10 S., R. 

IB &., 1,200 feet downstream from Twin Palls power plant, 2-5- miles upstream from 

Shoshone Palls, and 4 miles north of Kimberly. Datum of gage is 3,362.67 feet above 

mean sea level (levels by Idaho Power Co.).

Records available.--July 1923 to September 1950.

Extremes.--Maximum discharge during year, 18,900 second-feet June 28 (gage height, 18.55 

reetj; minimum, 42 second-feet July 19-21 (gage height, 1.75 feet); minimum daily, 483 

second-feet July 20.

1923-50: 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 20,000 second-feet; 

minimum recorded, 10 second-feet May 17, 1944 (gage height, 1.15 feet); minimum daily 

recorded, 139 second-feet July 4, 1941.

Remarks.--Records good. Flow regulated by Twin Palls power plant and several reservoirs 

aDove station. Practically entire flow is diverted at Milner during irrigation season; 

no diversion between Milner and Kimberly.

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

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

1Z 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

893 

2,400 

2,870 

Z.750 

2,730

2,750 

2,930 

2,220 

2,240 

2,270

2,470 

2., 770 

2,860 

3,480 

3,810

3,630 

3,340 

2,570 

2,700 

3,160

4,180 

3,730 

3,160 

3,030 

1,720

1,400 

1,760 

2,030 

2,500 

2,270 

2,400

Nov.

2,340 

3,460 

3,320 

2,370 

2,340

2,340 

2,340 

2,310 

2,320 

2,320

2,380 

2,930 

2,850 

2,850 

2,800

2,310 

2,240 

2,250 

2,290 

2,340

2,330 

2,310 

2,300 

2,240 

2,150

2,240 

2,260 

2,210 

2,280 

2,250

Dec.

2,240 

2,240 

2,240 

2,280 

2,250

2,260 

2,340 

2,390 

2,280 

2,170

2,010 

1,930 

2,300 

2,440 

2,420

2,260 

2,370 

2,340 

2,470 

2,560

2,420 

2,420 

2,500 

a2,550 

a2,430

al,700 

a900 

al,150 

a2,430 

2,510 

2,800

Jan.

2,960 

3,O60 

2,610 

2,220 

2,550

2,860 

3,080 

3,060 

2,790 

2,970

2,960 

2,960 

2,960 

2,910 

2,960

3,020 

3,020 

3,070 

3,360 

3,740

3,920 

4,510 

4,270 

3,750 

3,300

3,090 

3,570 

3,960 

4,050 

3,900 

3,400

Feb.

,350 

,540 

,6OO 

,700 

,200

,680 

,450 

,430 

,550 

,610

,520 

,450 

,250 

,860 

,960

,970 

,950 

,960 

,030 

,450

,330 

,380 

,450 

,370 

,370

,380 

,250 

,370

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

St......................................

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

Mar.

,510 

,480 

,400 

,500 

,46O

,950 

,400 

,380 

,200 

,250

,330 

,260 

,330 

,160 

,160

,190 

,300 

,320 

,630 

,590

,100 

,980 

,400 

,730 

,800

,170 

,380 

,960 

,880 

8,070 

7,580

Apr.

7,110 

7,410 

7,560 

7,840 

8,320

8,530 

8,850 

9,060 

9,060 

8,850

9,190 

9,370 

9,160 

9,020 

9,060

9,190 

8,680 

8,050 

8,340 

8,200

7,960 

7,910 

8,160 

9,370 

alO,000

a9,200 

a8,800 

a7,400 

a7,600 

a6,200

Secondfoot-days

83,023 

73,270 

69,600

1,045,942

100,840 

117,410 

168,850 

253,450 

158,839 

260,234 

164,276 

26,978 

31,208

1,507,978

May

a6,100 

a5,300 

5,100 

4,690 

5,030

5,150 

5,450 

5,060 

4,570 

3,360

1,490 

946 

707 

836 

1,110

1,010 

1,340 

1,330 

1,700 

5,160

8,180 

9,280 

8,680 

8,040 

8,320

8,280 

8,360 

8,400 

8,520 

8,520 

8,820

Maximum

4,180 

3,460 

2,800

10,600

4,510 

4,680 

8,070 

10,000 

9,280 

18,500 

12,900 

1,110 

2,200

18,500

June

3,140 

1,020 

1,680 

1,640 

1,110

667 

613 

864 

1,520 

4,390

9,510 

12,700 

15,600 

12,000 

9,510

8,820 

8,610 

8,900 

10,500 

12,300

12,900 

10,100 

9,190 

9,850 

12,000

13 , 000 

17,800 

18,500 

17,200 

14,600

July

11,400 

12,000 

10,900 

9,260 

8,990

7,800 

8,850 

12,100 

12,900 

1-0,700

9,550 

8,890 

8,630 

8,310 

6,980

4,820 

1,940 

878 

492 

483

760 

860 

754 

658 

776

772 

768 

750 

748 

728 

829

Minimum

893 

2,150 

900

211

2,220 

3,350 

3,950 

6,200 

707 

613 

483 

653 

768

483

Aug.

981 

900 

823 

690 

1,060

1,060 

1,110 

1,050 

950 

832

789 

793 

653 

1,000 

1,030

893 

792 

783 

778 

669

884 

817 

818 

817 

809

824 

735 

865 

969 

926 

878

Mean

2,678 

2,442 

2,245

2,866

3,253 

4,193 

5,447 

8,448 

5,124 

8,674 

5,299 

870 

1,040

4,131

Sept.

878 

782 

824 

1,030 

809

924 

884 

962 

1,020 

1,130

998 

1,030 

914 

1,220 

1,050

833 

768 

946 

1,030 

1,230

1,090 

1,030 

1,040 

896 

1,090

1,060 

1,050 

1,100 

1,390 

2,200

Runoff In 

acre-feet

164,700 

145,300 

138,000

2,074,000

200,000 

232,900 

334,900 

502,700 

315,100 

516,200 

325,800 

53,510 

61,900

2,991,000

a No gage-height record; discharge computed on basis of records for station at Milner.
SNAKE RIVER MAIN STEM 29

Snake River near Buhl, Idaho

Location.--Water-stage recorder, lat. 42°40', long. 114°43>, in NW£ sec. 9, T. 9 S., R. 

15 E., 2 miles downstream from Niagara Springs, 3tf miles upstream from outlet of Clear 

Lakes, and 6 miles northeast of Buhl. Datum of gage is 2,952.9 feet above mean sea 

level, by stadia levels.

Records available. December 1946 to September 1950.

Extremes. Maximum discharge during year, 20,000 second-feet June 28 (gage height, 9.33 

reet); minimum, 2,260 second-feet July 21 (gage height, 0.82 foot).

1946-50: Maximum discharge, 23,100 second-feet June 13, 1947 (gage height, 10.34 

feet); minimum observed, 1,900 second-feet May 5, 1947 (gage height, 0.38 foot).

Remarks. Records good. Plow 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 diverted during 

irrigation season.

Rating table, water year 1949-50 (gage height, In feet, 

and discharge, In second-feet)

0.8 2,240 3.0 4,750 7.0 13,400 

.9 2,320 4.0 6,450 8.0 16,100 

1.4 2,770 5.0 8,550 9.3 19,900 

2.0 3,450 6.0 10,900

Discharge, In second-feet, water year October 1949 to September 195u

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

2,920 

3,450 

4,830 

4,770 

4,850

4,660 

5,100 

4,420 

4,320 

4,330

4,470 

4,630 

4,780 

5,210 

5,790

5,640 

5,520 

4,640 

4,540 

4,810

5,900 

5,850 

5,070 

5,120 

3,950

3,350 

3,400 

3,670 

4,210 

4,190 

4,280

Nov.

4,240 

4,830 

5,490 

4,360 

4,200

4,170 

4,170 

4,200 

4,230 

4,250

4,200 

4,560 

4,690 

4,640 

4,630

4,250 

4,000 

3,970 

4,000 

4,100

4,120 

4,140 

4,140 

4,080 

3,970

3,990 

4,040 

3,980 

3,990 

4,030

Dec.

3,980 

3,990 

3,980 

3,980 

4,020

3,970 

4,000 

4,160 

4,020 

3,940

3,750 

3,670 

3,770 

4,100 

4,160

4,040 

4,000 

4,030 

4,040 

4,200

4,100 

4,020 

4,110 

4,240 

4,170

4,020 

3,380 

2,810 

2,870 

3,970 

4,250

Jan.

4,430 

4,570 

4,370 

3,860 

3,950

4,280 

4,540 

4,600 

4,420 

4,490

4,460 

4,450 

4,490 

4,420 

4,410

4,460 

4,570 

4,590 

4,720 

5,130

5,500 

6,680 

6,340 

5,440 

4,940

4,490 

4,880 

5,360 

5,490 

5,360 

4,990

Feb.

4,720 

4,860 

5,010 

5,070 

5,720

6,410 

6,220 

5,860 

5,900 

6,040

5,970 

5,850 

5,760 

5,340 

5,360

5,410 

5,360 

5,340 

5,360 

5,690

5,670 

5,720 

5,860 

5,770 

5,700

5; 790 

5,690 

5,620

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

5,810 

5^830 

5,760 

5,790 

5,810

5,500 

5,500 

5,740 

5,580 

5,600

5.6EO 

' 5,550 

5,650 

5,530 

5,500

5,530 

5,670 

5,600 

6,450 

8,000

8,460 

8,480 

8,600 

9,100 

8,850

7,400 

7,760 

8,140 

8,990 

9,540 

9,190

Apr.

8, 

8, 

9, 

9, 

9,

10, 

10, 

10, 

10,

10,

10, 

10, 

10, 

10, 

10,

10, 

10, 

9, 

9, 

9,

9, 

9,

9, 

10,

11,

11, 

10, 

9, 

9, 

8,

Secondfoot-days

142,670 

127,660 

121,740

1,690,510

148,680 

157,070 

210,530 

302,410 

212,400 

312,750 

225,710 

86,070 

93,350

2,141,040

620 

620 

100 

310 

770

200 

300 

700 

800 

400

700 

900 

800 

600 

600

800 

600 

520 

820 

820

490 

420 

680 

600 

700

000 

400 

930 

910 

300

May

7,690 

7,380 

6,720 

6,280 

6,720

6,510 

7,190 

6,660 

6,640 

5,330

3,880 

2,940 

2,620 

2,460 

2,750

2,730 

2,840 

3,080 

3,190 

5,830

8,960 

11,200 

10, 600 

10,000 

10, 500

10,000 

10,000 

10,100 

10, 400 

10,500 

10,700

Maximum

5,900 

5,490 

4,250

12,300

6,680 

6,410 

9,540 

11,700 

11,200 

19,700 

14,600 

3,150 

3,850

19,700

June

7,130 

3,260 

3,090 

3,550 

3,210

2,610 

2,570 

2,580 

2,600 

4,950

10,600 

14,200 

16,800 

15,300 

11,600

10,800 

10,600 

10,600 

12,100 

13,600

14,800 

12,700 

11, 100 

11,600 

13,100

14,500 

17,900 

19,700 

18,800 

16,800

July

13,800 

13,400 

13,200 

11,500 

10,800

12,000 

11,300 

12,700 

14,600 

13, 100

11,600 

10,700 

10,500 

10,000 

8,990

7,150 

4,760 

3,150 

2,550 

2,370

2,310 

2,420 

2,520

2,510 

2,470

2,510 

2,510 

2,530 

2,550 

2,570 

2,640

Aug.

2,730 

2,710 

2,680 

2,670 

2,760

2,990 

3,150 

3,090 

3,000 

2,890

2,790 

2,790 

2,760 

2,740 

2,950

2,870 

2,730 

2,670 

2,670 

2,640

2,660 

2,730 

2,680 

2,720 

2,620

2,640 

2,670 

2,660 

2,770 

2,820 

2,820

Minimum Mean

2,920 4,602 

3,970 4,255 

2,810 3,927

2,010 4,632

3,860 4,796 

4,720 5,610 

5,500 6,791 

8,300 10,080 

2,460 6,852 

2,570 10,420 

2,310 7,281 

2,620 2,776 

2,730 3,112

2,310 5,866

Sept.

2,780 

2,730 

2,730 

2,810 

2,900

2,780 

2,820 

2,990 

3,140 

3,180

3,260 

3,280 

3,230 

3,240 

3,350

3,180 

3,080 

3,020 

3,120 

3,260

3,260 

3,110 

3,140 

3,070 

3,140

3,210 

3,180 

3,130 

3,380 

3,850

Runoff In 

acre-feet

283,000 

253,200 

241,500

3,353,000

294,900 

311,500 

417,600 

599,800 

421,300 

620,300 

447,700 

170,700 

185,200

4,247,000
30 SNAKE RIVER MAIN STEM

Snake River below Lower Salmon Palls, near Hagerman, Idaho

Location. Water-stage recorder, lat. 42 "51'36", long. 114 "54'42", in lot 3, sec. 2, T. 

Y H., R. 13 E., half a mile downstream from lower Salmon Falls power plant, 1 mile upstream from Big Wood (Malad) River, and 3? miles north of Hagerman. Datum of gage is 

2,727.7 feet above mean sea level, datum of 1929, supplementary adjustment of 1947, by 

stadia levels. Prior to Jan. 3, 1950, water-stage recorder 340 feet upstream at same 

datum.

Records available. November 1937 to September 1950.

Extremes.--Maximum discharge during year, 29,800 second-feet June 27 (gage height, 15.60 

reetj; discharge probably less than 100 second-feet Jan. 10, 11, when river was below 

intake pipes; minimum daily discharge, 5,080 second-feet July 23.

1937-50: Maximum discharge, that of June 27, 1950; minimum, that of Jan. 10, 11, 

1950; minimum daily, 4,880 second-feet July 10, 1949.

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

wnicn 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 1949 to September 1950

Day

1 

Z 

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7,830 

8,550 

8,870 

9,610 

9,370

10,100 

10,200 

9,290 

9,980 

9,190

9,350 

9,270 

9,150 

9,830 

9,880

10,900 

11,600 

10,400 

8,400 

9,690

10,900 

11,000 

10,200 

9,640 

9,390

7,980 

8,180 

6,720 

9,760 

9,270 

9,380

Nov.

9,510 

9,210 

10,300 

9,470 

9,310

8,120 

8,730 

8,910 

8,910 

8,570

9,070 

9,260 

9,730 

9,890 

9,680

9,320 

8,290 

8,330 

8,920 

8,310

9,290 

8,900 

10,000 

8,090 

9,180

9,440 

8,990 

8,640 

8,830 

8,810

Dec.

8,820 

9,270 

9,170 

8,690 

9,250

9,110 

9,020 

8,950 

9,280 

8,690

8,690 

8,440 

8,410 

8,900 

8,910

9,300 

9,040 

 9,730 

8,790 

8,680

9,030 

8,920 

9,100 

8,960 

9,270

8,900 

7,900 

7,990 

8,200 

8,480 

9,160

Jan.

9,450 

9,450 

9,140 

8,540 

7,610

8,990 

7,930 

9,370 

9,300 

8,640

8,360 

8,630 

8,610 

8,980 

8,960

9,080 

9,060 

8,420 

8,360 

8,530

10,700 

10,600 

11,900 

10,400 

9,770

9,150 

8,600 

8,720 

9,670 

10,600 

9,480

Feb.

9,290 

7,990 

8,890 

9,050 

8,300

12,400 

11,100 

10,800 

9,030 

9,510

9,310 

10,500 

11,900 

9,800 

8,940

9,540 

9,920 

9,180 

10,30O 

11,300

9,150 

9,300 

10,100 

11,800 

9,480

7,340 

13,000 

9,890

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

9,490 

9,670 

9,620 

9,560 

10,200

11,300 

9,830 

10,300 

10,100 

9,660

10,200 

9,510 

9,960 

10,400 

9,760

9,950 

10,000 

8,660 

11,000 

11,100

12,000 

13,400 

12,400 

14,000 

11,600

11,300 

13,800 

11,900 

11,400 

14,300 

13,300

Apr.

11,600 

11,900 

15,400 

12,400 

13,200

12,400 

15,100 

14,800 

13,800 

14,700

15,300 

15,600 

13,900 

14,600 

15,000

14,400 

15,100- 

13,700 

13,600 

14,000

12,700 

13,600 

13,300 

14,500 

15,700

14,600 

14,600 

14,200 

13,700 

13,000

Secondfoot -days

293,880 

272,010 

275,050

3,309,330

285,000 

277,110 

339,670 

420,400 

334,950 

442,320 

352,990 

225,430 

232,510

3,751,320

May

11,900 

11,300 

11,300 

11,600 

9,440

10,200 

11,200 

11,500 

11,500 

9,020

8,300 

8,180 

5,940 

5,120 

8,830

6,700 

6,240 

6,020 

7,130 

7,730

12,700 

14,800 

15,200 

13,800 

13,800

14,200 

13,500 

14,000 

15,000 

14,200 

14,600

Maximum

11,600 

10,300 

9,730

16,700

11,900 

13,000 

14,300 

15,700 

15,200 

24,700 

19,100 

8,590 

8,910

24.70O

June

11,700 

8,280 

6,300 

7,770 

8,560

7,430 

6,550 

6,760 

6,770 

6,900

15,500 

17,100 

20,600 

20,800 

15,800

15,000 

15,200 

14,800 

16,600 

17,500

19,600 

18,100 

15,300 

16,100 

17,400

18,900 

20, 400 

24,700 

23,600 

22,300

Minimum

July

18,200 

17,300 

17,800 

15,700 

14,600

14,200 

14,300 

16,500 

19,100 

17,500

16,300 

15,100 

14,900 

14,400 

12,300

11,700 

11,300 

7,310 

6,590 

6,600

6,680 

5,350 

5,080 

7,600 

6,590

6,440 

6,330 

7,040 

6,690 

6,490 

7,000

6,720 

8,090 

7,900

4,880

7,610 

7,340 

8,660 

11,600 

5,120 

6,300 

5,080 

6,100 

7,140

5,080

Aug.

6,580 

7,890 

6,600 

6,970 

7,550

6,770 

7,980 

8,130 

7,910 

7,570

7,410 

7,900 

6,100 

8,590 

7,760

7,410 

7,320 

7,180 

6,910 

7,030

7,410 

6,820 

6,580 

7,080 

7.16O

7,060 

6,820 

7,230 

7,080 

7,490 

7,140

Mean

9,480 

9,067 

8,873

9,067

9,194 

9,897 

10,960 

14,010 

10,800 

14,740 

11,390 

7,272 

7,750

10,280

Sept.

7,250 

7,220 

7,230 

7,190 

7,220

7,140 

7,180 

7,180 

7,470 

7,590

7,410 

7,550 

8,600 

8,130 

7,820

7,310 

7,910 

7,720 

8,070 

8,290

8,130 

8,520 

,800 

,740 

,650

,100 

,850 

,810 

8,910 

8,520

Runoff In 

acre-feet

582,900 

539,500 

545,600

6,564,000

565,300 

549,600 

673,700 

833,900 

664,400 

877,300 

700,100 

447,100 

461,200

7,441,000

Note. Discharge computed fron partly estimated gage-height record Oct. 1 to Jan. 3, when river 

was belew Intake pipes for several hours each day.
SNAKE RIVER MAIN STEM 31

Snake River at King Hill, Idaho

Location. Water-stage recorder, lat. 43°00', long. 115°11', in SWi sec. 7, T. 5 S., R. 

11 £., 300 feet east of railroad station at King Hill and 20 miles downstream from Big 

Wood (Malad) River. Datum of gage is 2,492.3 feet above mean sea level, by stadia 

levels.

Records available. May 1909 to September 1950.

Extremes. Maximum discharge during year, about 29,500 second-feet June 28 (gage height, 

12.6' feet); minimum observed, 1,250 second-feet Jan. 10 (gage height, 1.75 feet); minimum daily, 5,660 second-feet July 23.

1909-50: Maximum discharge observed, 47,200 second-feet June 22, 1918 (gage height, 

16.3 feet), from rating curve extended above 30,000 second-feet; minimum observed, that 

of Jan. 10, 1950; minimum daily, 4,760 -second-feet July 7-9, Aug. 15, 16, 1910.

Remarks. Records good. Flow regulated by power plants at Lower Salmon Falls and near 

Bliss and many reservoirs above 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, Mater year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9,400 

9,930 

10,300 

11,100 

10,800

11,400 

11,300 

10,800 

11,500 

11,000

11,200 

11,200 

10,900 

11,900 

11, 800

12,800 

13,200 

12,100 

10,200 

10,600

12,200 

13,100 

12,200 

11,000 

11, 100

9,410 

9,940 

8,900 

8,620 

10,000 

11,700

Nov.

10,700 

10,000 

12,200 

12,100 

10,900

10,000 

10,900 

10,800 

11,000 

10,500

10,3OO 

10,600 

11,400 

10,900 

11,400

10,600 

9,390 

9,920 

9,610 

9,500

11,300 

10, 400 

10,800 

10,200 

10,200

10, 900 

10, 100 

10, 700 

9,870 

9,870

Dec.

10,200 

10,700 

9,800 

10,300 

9,960

10, 100 

10, 100 

10,000 

9,940 

10,500

9,770 

9,180 

9,200 

9,600 

9,600

10,300 

9,800 

10,500 

10,000 

9,6OO

9,900 

9,900 

10,200 

10,000 

10,300

10,000 

9,000 

9,200 

9,300 

9,500 

10,000

Jan.

10, 100 

10, 200 

10,000 

9,600 

8,800

9,600 

9,000 

10,200 

10,000 

h9, 700

9,600 

10, 300 

9,960 

10,800 

10,500

10,400 

10, 900 

9,940 

10, 100 

10,300

11,000 

12,000 

14,200 

12,500 

11,300

11,000 

10,300 

10,400 

11,500 

12,300 

11,300

Feb.

11,300 

9,360 

10,600 

11,000 

10,100

13, 600 

12,400 

12,900 

11,300 

11,600

11,000 

12,000 

13,000 

11,600 

10,100

11,700 

11,600 

11,000 

12,000 

13,400

11,200 

11,300 

11,800 

13,900 

12,3OO

9,840 

15,OOO 

11,900

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

Hav

June 

July 

Augu 

Sept

Wa

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

lendar year 194

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

Mar.

11,600 

11,400 

11,600 

11,200 

12,000

13,900 

12,000 

11,900 

11,800 

11,300

11,700 

11,300 

11,400 

12,200 

11,400

11,700 

12,600 

11,600 

13,500 

13,800

14,100 

15,500 

14,600 

14,800 

14,900

14,500 

16,000 

13,600 

14,000 

15,200 

15,200

Apr.

14,000 

14,600 

16,800 

15,000 

15,700

14,600 

17,400 

17,100 

16,800 

17,500

17,500 

19,600 

16,100 

16,600 

17,200

16,900 

17,800 

16,200 

15, 700 

16,300

15,500 

16,900 

14,100 

16,400 

18, 100

17,100 

16,900 

17,000 

16,100 

15,500

Secondf oot -days

341,600 

317,060 

306,450

3,842,770

327,800 

328,800 

402,300 

493,000 

395,200 

481,380 

387,860 

254,230 

275,700

4,311,380

May

15,100 

13,700 

13,7OO 

13,400 

11,700

11,900 

13,000 

14,600 

12,800 

11,800

10,000 

9,800 

h8,500 

7,200 

11,000

h8,600 

7,800 

7,800 

US, 700 

h9,400

14,000 

16,000 

16,200 

15,200 

16,000

16,200 

116,000 

16,000 

16,300 

16,100 

16,700

Maximum

13,200 

12,200 

10,700

18,000

14,200 

15,000 

16,000 

19,600 

16,700 

25,600 

20,200 

9,520 

10,400

25,600

June

14,600 

10,200 

7,220 

8,930 

10,300

8,910 

8,420 

8,000 

8,240 

7,560

15,200 

18,400 

21,500 

23,400 

17,200

16,100 

16,500 

16,100 

18,000 

18,000

20,600 

20,000 

16,800 

17,500 

18,500

19,500 

21,000 

25,600 

25,400 

23,700

July

20, 200 

18, 300 

19,000 

17,400 

15,800

16,000 

14,500 

16,800 

19,600 

18,900

17,200 

16,000 

15,700 

15,300 

13,600

13,100 

12,900 

8,420 

8,320 

7,580

7,530 

6,960 

5,660 

8,730 

7,710

7,620 

7,470 

8,320 

7,720 

7,520 

8,000

Minimum

8,620 

9,390 

9,000

5,790

8,800 

9,360 

11,200 

14,000 

7,200 

7,220 

5,660 

7,160 

8,050

5,660

Aug.

7,690 

8,610 

7,960 

7,880 

7,900

8,080 

8,860 

9,060 

8,520 

8,560

8,220 

8,520 

7,160 

9,520 

8,460

8,340 

8,350 

8,240 

7,840 

8,030

8,380 

7,700 

7,670 

7,980 

7,940

8,260 

7,640 

8,440 

7,730 

8,200 

8,490

Meen

11,020 

10,570 

9,885

10,530

10,570 

11,740 

12,980 

16,430 

12,750 

16,050 

12,510 

8,201 

9,190

11,810

Sept.

8,050 

8,240 

8,240 

8,300 

8,120

8,180 

8,350 

8,630 

8,620 

8,930

8,960 

9,410 

9,880 

10,200 

9,240

9,340 

9,190 

9,260 

9,440 

9,660

9,860 

9,640 

9,670 

8,970 

10,000

9,560 

9,860 

9,400 

10, 100 

10,400

Runoff in 

acre-feet

677,600 

628,900 

607,800

7,622,000

650,200 

652,200 

798,000 

977,900 

783,900 

954,800 

769,300 

504,300 

546,800

8,552,000

h Computed from staff-gage reading.

Note. No gage-height record Dec. 13 to Jan. 9, Jan. 11, May 10-12, 14, 15, 17, 18, 21-26, 28, June 

26, 27) discharge computed on basis of records for stations below Lower Salmon Falls and near Murphy. 

Discharge computed from partly estimated gage-height record Oct. 1-8, 10-14, 18-21, Oct. 24 to Nov. 

2, Nov. 6, 14-20, 22, 23, Nov. 25 to Dec. 12, Jan. 12, 13, 15, 17, 18, 20, 21, 25-28, Jan. 31 to Feb. 

5, Mar. 10, 11, 16, 17, Aug. 17 to Sept. 22, Sept. 25-30, when river was below intakes or float was 

obstructed for several hours each day.
32 SNAKE RIVER MAIN STEM

Snake River near Murphy, Idaho

Location.--Water-stage recorder, lat. 43°18 I , long. 116°26', in NE£ sec. 35, T. 1 S., R. 

I W., 45- miles downstream from Swan Falls power plant and 7j 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 1950.

Extremes. Maximum discharge during year, 28,500 second-feet June 30 (gage height, 10.12 

1'eet); minimum, 5,680 second-feet July 24 (gage height, 3.33 feet); minimum daily, 6,330 

second-feet July 24.

1912-50: Maximum discharge, 47,300 second-feet June 22, 1918 (gage height, 13.95 

feet, site and datum then in use); minimum recorded, 3,900 second-feet July 9, 1949 

(gage height, 2.53 feet); minimum daily, 5,440 second-feet Aug. 4, 1914.

Remarks.--Records excellent. Plow regulated by many reservoirs above station. Diurnal 

fluctuations caused by Swan Falls power plant. Several diversions by pumping between 

this station and station at King Hill.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in aecond-feet) 

(Shifting-control method used Oct. 1 to Dec. 3)

3.5 6,100

3.8 6,380

4.0 7,450

4.5 8,890

5.0 10,400

5.5 11,900

6.0 13,500

7.0 16,800

8.0 20,400

9.0 24,200

9.9 27,600

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9,890 

9,350 

9,770 

10,300 

11, EDO

11,100 

11,700 

11,900 

11,300 

11,800

11,300 

11,200 

11,400 

11,400 

12,100

11,900 

12,900 

13,300 

IE, 600 

10,500

11,000 

12,300 

13,200 

12,600 

11,700

11,500 

9,920 

10,200 

9,260 

9,260 

10,400

Nov.

11,800 

11,100 

10,700 

12,600 

12,500

11,300 

10,700 

11,200 

11,300 

11,300

11,200 

10,800 

11,200 

11,800 

11,600

11,800 

11, EDO 

10,100 

10,400 

10,200

10,200 

11,600 

10,800 

11,000 

10,800

10,500 

11,600 

10,600 

11,100 

10,200

Dec.

10,200 

10,800 

10,700 

10,200 

10,900

10,500 

10,600 

10,600 

10,600 

10,400

10,400 

10,500 

9,890 

9,950 

9,890

10,900 

10,200 

10,900 

10,900 

10,600

10,300 

10,700 

10,400 

10 , 600 

10,600

10,300 

11,000 

9,500 

9,410 

9,560 

10,200

Jan.

10,300 

10,700 

11,000 

11,600 

10,300

9,740 

10,400 

10,100 

11,000 

11,000

10,700 

10,400 

10,600 

10,700 

11,000

10 , 900 

11,000 

11,600 

10,300 

10,600

10,500 

12,000 

12,900 

15,200 

13,300

12,000 

11,400 

10,700 

11,000 

12,000 

12,600

Feb.

11,600 

11,500 

10,100 

10,800 

11,000

11,200 

14,800 

13,300 

13,000 

12,300

11,900 

11,500 

12,400 

13,500 

12,000

10,900 

11,900 

12,300 

11,500 

12,700

13,800 

11,700 

11,800 

12,500 

14,600

12,800 

10,600 

15,400

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mftv

June 

July 

Augu 

Sept

Wa

lendar year 194E 

ary

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

Mar.

IE, 600 

12,100 

12,100 

12,100 

12,100

12,600 

14,500 

12,800 

12,500 

12,500

12,100 

12,400 

12,100 

11,800 

12,700

11,800 

IE, 300 

13,100 

12,500 

14,700

14,700 

15,200 

16,000 

15,200 

16,500

15,600 

15,300 

15,600 

14,500 

14,200 

16,200

Apr.

15,900 

15,000 

15,200 

18,100 

16,400

16,400 

16,000 

18,300 

18,300 

17,700

18,100 

18,400 

20,100 

17,400 

18,200

18,400 

18,000 

18,800 

17,400 

17,100

17,300 

17,000 

18,000 

15,800 

17,700

18,800 

17,800 

17,400 

17,900 

16,800

Secondfoot-days

348,250 

333, EOO 

322,200

4,058,240

347,540 

343,400 

421,400 

523,700 

423,560 

515,740 

422,640 

262,390 

280,410

4,544,430

May

16,100 

15,600 

14,600 

14,200 

14,100

12,400 

IE, 600 

13,700 

14,700 

13,400

11,800 

10,700 

9,920 

8,770 

7,340

12,100 

9,910 

9,220 

9,400 

10,200

10,300 

15,500 

17,400 

18,100 

17,200

17,300 

17,900 

16,700 

17,400 

17,700 

17,300

Maximum

13,300 

12,600 

11,000

18,600

15, EOO 

15,400 

16,600 

20,100 

18,100 

27,400 

25,000 

9,560 

10,200

27,400

June

18,000 

16,000 

11,900 

8,860 

10,100

11,400 

10,300 

9,880 

9,340 

9,550

8,710 

16,700 

19,300 

E3.000 

23,800

18,400 

17,400 

17,500 

17,200 

18,900

19,600 

22,300 

21,100 

18, EOO 

18,600

19,500 

21,400 

24,500 

27,400 

26,900

July

25,000 

21,300 

19,600 

20 , 200 

18,000

16,800 

16,400 

15,800 

17,700 

21,000

19,400 

17,900 

16,600 

16,300 

15,900

14,300 

13,300 

13,000 

8,950 

8,860

8,040 

7,930 

7,650 

6,330 

8,590

7,950 

7,950 

7,620 

8,530 

7,980 

7,760

Minimum

9,260 

10,100 

9,410

6,640

9,740 

10,100 

11,800 

15,000 

7,340 

8,710 

6,330 

7,790 

8,250

6,330

Aug.

8.E10 

8,180 

8,720 

8,210 

8,390

8,360 

8,420 

9,140 

9,320 

8,870

8,780 

8,510 

8,720 

7,790 

9,560

8,720 

8,770 

8,560 

8,590 

8,210

8,300 

8,620 

7,950 

7,870 

8,130

8,130 

8,270 

7,950 

8,600 

8,170 

8,370

Mean

11,230 

11,110 

10,390

11,120

11,210 

12,260 

13,590 

17,460 

13,660 

17,190 

13,630 

8,464 

9,347

12,450

Sept.

8,750 

8,250 

8,430 

8,430 

8,430

8,400 

8,370 

8,570 

9,020 

8,990

9,260 

9,E60 

9,530 

9,980 

10,100

9,860 

9,680 

9,530 

9,710 

9,740

9,890 

10,000 

9,890 

9,920 

9,170

9,950 

9,680 

9,860 

9,560 

10,200

Runoff In 

acre-feet

690,700 

660,900 

639,100

8,049,000

689,300 

681,100 

835,800 

1,039,000 

840,100 

1,023,000 

838,300 

520,400 

556,200

9,014,000
SNAKE RIVER MAIN STEM 33

Snake River at Weiser, Idaho

Location.--Water-stage recorder, lat. 44°15 ! , long. 116°59', in sec. 31, T. 11 N., R. 5 W., 

a third of a mile upstream from highway bridge at Weiser and half a mile downstream 

from Weiser River. Datum of gage is 2,087.09 feet above mean sea level, datum of 1929.

Records available.--October 1910 to September 1950. 

ed by u. 3. Weather Bureau since 1895.

Fragmentary gage-height record o'B'cainExtremes. Maximum discharge during year, 40,400 second-feet Apr. 14 (gage height, 9.13 

feet); minimum, 8,980 second-feet July 25 (gage height, 2.78 feet).

1910-50: 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 in June 1894 was considerably higher.

Remarks.--Records excellent, Flow regulated oy many reservoirs above station. Some dirunal fluctuation caused by Swan Falls power plant. Some diversions below Murphy for 

irrigation.

Cooperation.--Gage-height record collected in cooperation with U. S. Weather Bureau.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

14,000 

13,400 

13,000 

12,700 

13,500

14,600 

15,400 

15,100 

15,100 

14,900

15,000 

14,600 

14,300 

14,500 

14,800

15,500 

15,300 

15,900 

16,100 

15,800

14,300 

14,000 

15,200 

16,000 

15,600

15,000 

14,600 

13,400 

13,300 

12,600 

11,800

Nov.

13,100 

14,500 

14,000 

13,600 

15,100

15,000 

14,100 

13,800 

14,200 

14,500

14,700 

14,400 

13,900 

14,100 

14,600

14,900 

14,900 

15,100 

13,500 

13,100

12,800 

13,000 

14,100 

14,200 

14,300

14,300 

13,700 

14,300 

14,400 

14,200

Dec.

12,900 

12,400 

12,900 

13,900 

13,400

13,500 

13,700 

13,600 

13,500 

13,400

13,100 

12,800 

12,800 

12,700 

12,700

12,700 

13,500 

13,500 

13,600 

13,200

13,200 

12,700 

13,100 

13,400 

13,300

13,300 

12,900 

13,600 

12,800 

12,100 

12,000

Jan.

12,600 

12,800 

12,800 

13,200 

13,900

12,900 

13,100 

12,500 

12,800 

13,400

13,800 

13,300 

12,900 

12,900 

12,900

13,100 

13,400 

13,600 

14,100 

13,400

13,500 

14,700 

18,800 

21,200 

19,200

17,100 

15,800 

15,100 

14,300 

14,000 

14,700

Feb.

15,500 

14,600 

14,100 

13,000 

13,600

14,400 

19,200 

19,700 

a!9,000 

a!7,500

a!7,000 

15,900 

15,500 

15,800 

17,000

16,500 

15,300 

16,100 

16,600 

16,300

17,200 

17,700 

16,300 

16,800 

22,000

25,600 

23,700 

20,600

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

Kav

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

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

Mar.

23,000 

20,300 

19,400 

19,500 

19,700

20,800 

20,600 

21,300 

19,500 

18,900

18,600 

17,500 

17,100 

16,800 

16,800

18,000 

21,100 

27,400 

28,500 

28,000

26,000 

26,000 

25,700 

26,400 

26,900

26,800 

24,700 

23,800 

23,200 

20,400 

19,900

Apr.

21,400 

23,800 

25,700 

25,400 

27,300

27,000 

28,600 

29,700 

31,700 

32,600

32,800 

33,500 

34,600 

38,400 

35,500

35,200 

35,100 

35,400 

35,800 

34,400

33,900 

34,900 

34,800 

33,900 

30,000

30,700 

30,900 

29,500 

28,100 

27,900

Secondfoot-days

449,300 

424,400 

406,200

6,219,500

441,800 

482,500 

681,600 

938,500 

829,100 

914,900 

615,470 

357,100 

399,500

6,940,370

May

26,800 

28,200 

27,600 

25,700 

24,800

24,400 

22,800 

22,700 

23,500 

24,100

22,000 

21,300 

21,000 

21,800 

23,300

23,200 

25,900 

26,200 

24,400 

23,000

23,200 

24,200 

30,000 

33,300 

34,800

34,000 

33,300 

34,600 

33,300 

33,100 

32,600

Maximum

16,100 

15,100 

13,900

33,900

21,200 

25,600 

28,500 

38,400 

34,800 

37,600 

38,000 

12,700 

14,600

38,400

June

32,600 

33,300 

32,200 

28,200 

25,700

26,800 

28,200 

28,000 

25,700 

23,600

23,100 

22,600 

28,500 

30,700 

33,100

35,100 

31,000 

29,700 

29,400 

29,000

31,200 

33,600 

36,600 

35,900 

33,000

31,600 

31,200 

32,700 

35,000 

37,600

Minimum

July

38,000 

36,800 

34,200 

31,600 

31,500

?8,900 

£6,600 

25,400 

22,000 

23,400

25,300 

24,000 

22,400 

21,100 

20,800

20,000 

18,400 

16,600 

15,900 

12,600

12,100 

11,000 

10,900 

10,600 

9,570

10,800 

11,100 

10,900 

10,600 

11,200 

11,200

11,800 

12,800 

12,000

8,800

12,500 

13,000 

16,800 

21,400 

21,000 

22,600 

9,570 

10,700 

11,200

9,570

Aug.

11,000 

11,100 

11,200 

11,500 

11,800

12,100 

12,600 

12,600 

12,500 

12,700

12,200 

12,100 

11,800 

11,600 

11,300

11,400 

11,800 

11,500 

11,300 

11,200

11,000 

10,900 

11,200 

10,800 

10,700

11,000 

11,200 

11,300 

11,200 

11,200 

11,300

Mean

14,490 

14,150 

13,100

17,040

14,250 

17,230 

21 t 990 

31,280 

26,750 

30,500 

19,850 

11,520 

13,320

19,010

Sept.

11,200 

11,700 

11,300 

11,400 

11,500

11,700 

11,700 

11,500 

12,200 

13,100

13,500 

13,400 

13,500 

.3,700 

14,100

14,600 

14,300 

14,100 

13,900 

14,100

14,000 

14,300 

14,400 

14,400 

14,400

13,800 

14,200 

14,300 

14,600 

14,600

Runoff In 

acre-feet

891,200 

841,800 

805,700

12,340,000

876,300 

957,000 

1,352,000 

1,861,000 

1,644,000 

1,815,000 

1,221,000 

708,300 

792,400

13,770,000

a No gage-height recordj discharge computed on basis of records for stations at Oxbow and near 

Murphy and tributary Inflow.
34 SNAKE RIVER MAIN STEM

Snake River at Oxbow, Oreg.

Location. Water-stage recorder, lat. 44°57', long. 116°51', in NW£ sec. 16, T. 73., R. 

4H E., at Oxbow, five-eighths of a mile upstream from intake of diversion tunnel for 

Oxbow power plant and 2| miles upstream from Indian Creek. Datum of gag6 is 1,696.71 

feet above mean sea level, datum of 1929, supplementary adjustment of 1947.

Records available.--May 1923 to September 1950.

Extremes. Maximum discharge during year, 41,300 second-feet Apr. 15 (gage height, 15.12 

feet); minimum, 8,940 second-feet July 26 (gage height, 7.88 feet).

1923-50: Maximum discharge, 74,600 second-feet Apr. 21, 1943; maximum gage height, 

about 29 feet (ice jam), from floodmark, sometime during period Jan. 17-27, 1949; minimum, 4,890 second-feet Aug. 6, 1924 (gage height, 6.30 feet).

Remarks. Records excellent. Flow regulated by many reservoirs above station. Diurnal 

riuc~tuation caused by Swan Falls power plant. Some diversions below Weiser for irrigation.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

13,400 

13,800 

13,400 

13,000 

13,200

13,800 

15,300 

15,500 

15,400 

15,600

15,100 

15,400 

14,700 

14,700 

14,700

15,300 

15,500 

15,400 

16,100 

16,200

15,800 

13,800 

14,300 

15,500 

15,800

15,400 

14,600 

14,200 

13 , 000 

13,000 

11,900

Nov.

12,100 

13,200 

14,200 

13,900 

13,7OO

15,100 

14.7OO 

14,000 

13,700 

14,400

14,800 

14,600 

14,200 

13,900 

14,200

15,OOO 

14,900 

14,700 

14,400 

13,200

13,200 

13,100 

13,200 

14,700 

14,300

14,700 

14,400 

13,900 

15,200 

14,500

Dec.

14,200 

12,800 

12,500 

13,700 

14,200

13,400 

13,900 

13,800 

13,800 

13,700

13,300 

12,900 

12,600 

12,900 

12,700

12,900 

12,900 

13,800 

13,500 

13,500

13,300 

13,200 

12,700 

13,400 

13,200

13,500 

13,200 

13.OOO 

13,600 

12,400 

12,000

Jan.

12,300 

12,600 

12,700 

12,800 

12,900

13,200 

12,200 

13 , 000 

12,900 

12,900

13,700 

13,600 

13,200 

12,800 

12,800

13.OOO 

13 , 600 

13,300 

13,900 

14,200

13,200 

14,000 

16,100 

21,400 

20,400

19,300 

17,100 

16,100 

15,200 

14,400 

13,700

Feb.

14,700 

15,500 

14,OOO 

14,700 

12,700

14,800 

17,300 

19 , 800 

19,800 

18,300

17,900 

16,700 

16,200 

15,700 

16,500

18,300 

16,700 

15,900 

17.OOO 

17,800

17,200 

18,300 

18,700 

16,900 

19,500

25,900 

26,600 

24,200

Month

Octo 

Hove 

Dece

Ca

Janu 

PebP 

Marc 

Aprl

June 

July 

Augu 

Sept

Ma

mber. ............-..-..--..-.-..--.-.-..

lendar year 1949 

ax*y

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

Mar.

21,700 

23,400 

2O.8OO 

2O.20O 

20,700

21,500 

21,900 

21,400 

21,700 

19,800

19,500 

18,900 

17,900 

17,700 

17,300

17,600 

20,100 

26,400 

28,600 

30,600

27,000 

27,000 

26,60O 

26,500 

27,600

26,700 

26,100 

25,200 

23,500 

22,800 

20,400

Apr.

21,000 

23,200 

26,200 

26,200 

26,000

27,900 

28.OOO 

30,200 

30,900 

32,500

33 , 600 

33,600 

34,700 

37,600 

38,400

36,400 

36,200 

36,700 

36,700 

36,600

35,400 

36,100 

36,700 

35,900 

32,400

32,000 

32,200 

31,600 

29,500 

29,000

Secondroot-days

452 , 800 

424,100 

410,500

6,482,630

442,500 

497,600 

707,100 

963,400 

854,600 

'959,500 

646,670 

357,500 

394,200

7,110,470

May

28,600 

28,800 

29,000 

27,200 

25,800

24,800 

24,80O 

23.OOO 

23,400 

23,900

23,300 

22,400 

21,700 

22,400 

24,000

24,600 

24,300 

28,900 

26,200 

24,400

23,600 

24,800 

27,400 

32,900 

35,300

35,500 

34,800 

35,300 

35.0OO 

34,800 

33,700

Maximum

16,200 

15,200 

14,200

36,800

21,400 

26,600 

30,600 

38,400 

35,500 

38,500 

39,900 

12,600 

14,600

39,900

June

33,900 

34,500 

34,200 

31,600 

29,100

27,400 

28,900 

3O,3OO 

28,600 

26,OOO

24 , 500 

24 , 600 

25,600 

31 , 600 

33 , 000

36,300 

35,300 

32,300 

31,400 

31,200

31,600 

34,300 

36,800 

38,500 

36,200

33 , 600 

32,500 

33 , OOO 

34,700 

38,000

Minimum

July

39,900 

39,000 

37,300 

33,800 

33,000

31,600 

28,800 

27,200 

24,600 

23,200

24,800 

26, OOO 

23,800 

22,400 

21,400

20,900 

20,000 

18,100 

15,800 

15,300

12,100 

11,700 

10,800 

10,700 

10,300

9,170 

11,300 

10,800 

10,800 

10,600 

11,500

11,900 

12,100 

12,000

9,030

12,200 

12,700 

17,300 

21,000 

21,700 

24,500 

9,170 

10,700 

11,100

9,170

Aug.

11,100 

10,900 

11,100 

11,200 

11,800

11,900 

12,400 

12,600 

12,100 

12,600

12,600 

12,100 

12,100 

11,800 

11,800

10,700 

12,100 

11,700 

11,600 

11,300

11,300 

10,900 

11,100 

11,300 

10,700

10,800 

11,100 

11,200 

11,300 

11,000 

11,300

Maan

14,610 

14,140 

13,240

17,760

14,270 

17,770 

22,810 

32,110 

27,570 

31,980 

20,860 

11,530 

13,140

19,480

Sept.

11,100 

11,200 

11,500

11,100

11,200

11,400 

11,500 

11,500 

11 , 600 

12,300

13,500 

13,400 

13,400 

13,300 

13,700

14,200 

14,500 

14,200 

14,000 

13 , 900

14,000 

14,000 

14,200 

14,300 

14,300

14,200 

13,500 

14,300 

14,300 

14,600

Runoff In 

acre -feet

898,100 

841,200 

814,200

12,860,000

877,700 

987, OOO 

1,403,000 

1,911,000 

1,695,000 

1 , 903 , OOO 

1,283,000 

709,100 

781,900

14,100,000
SNAKE RIVER MAIN STEM 35

Snake River near Clarkston, Wash.

Location. Water-stage recorder, lat. 46°25'30", long. 117°10'30", in lot 1, sec. 16, T. 

li N., 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 ,800 square miles.

Kecoras available. October 1935 to September 1950 in reports of Geological Survey. Octot>er 1915 to September 1922 and August 1928 to September 1935 at site 66 miles downstream, published as Snake River at Riparia, in reports of Geological Survey. October 

1909 to September 1933 (at site at Riparia) in State Water-Supply Bulletin 5.

Extremes. Maximum discharge during year, 212,000 second-feet June 17 (gage height, 31.53 

rest); minimum, 14,800 second-feet Jan. 6 (gage height, 10.04 feet), but may have been 

lower sometime during period of ice effect; minimum daily, 19j200 second-feet Jan. 5. 

1909-50: Maximum discharge, 369,000 second-feet May 29, 1948 (gage height, 40.36 

feet, from high-water mark in well); minimum observed, 10,600 second-feet Aug. 14, 18, 

20, 24-28, 30, 31, Sept. 1, 2, 5, 1931, but may have been less during period of ice 

effect in January 1937.

Maximum 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 except those for period of ice effect, which are fair. Small 

diversions by pumping between this station and station at Oxbow, Oreg. Large diurnal 

fluctuation caused by power plant on Clearwater River above Lewiston, Idaho.

Revisions (water years). W 463: 1916. W 933: 1937.

Rating table, water year 1949-50, except period of ice effect 

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

10.5

10.9

11.4

12.0

13.0

17,000

18,700

21,100

24,000

29,200

14.0

15.0

16.0

18.0

20.0

34,600

40,600

47,200

62,000

78,300

26.0

28.0

30.7

96,500

116,600

138,900

163,400

200,300

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

20,600 

21,500 

22,500 

21,500 

21,100

22,000 

25,500 

26,500 

26,000 

26,000

26,000 

26,000 

26,000 

25,500 

25,000

24,500 

25,000 

25,000 

25,000 

26,000

25,500 

25,500 

23,000 

23 , 000 

25,000

25,500 

25,000 

24,000 

25,000 

27,000 

25,500

Hov.

23,000 

23,000 

23,500 

24,500 

24,000

23,500 

25,000 

24,500 

23,500 

24,000

25,500 

26,000 

26,500 

26,000 

25,000

25,000 

25,500 

25,000 

24,500 

24,000

22,000 

22,000 

21,500 

23,500 

34,100

37,600 

35,200 

43,200 

42,600 

*40,000

Dec.

38,200 

35,200 

31,900 

30,200 

29,200

29,200 

28,100 

28,100 

27,600 

27,600

26,000 

24,000 

23,000 

23 , 500 

23,500

23,500 

23,500 

24,000 

25,000 

24,500

23,500 

23,500 

23,500 

24,000 

25,500

24,500 

24,500 

24,000 

24,500 

25,500 

23 , 500

Jan.

23,000 

23,000 

22,000 

21,100 

19,200

20,100 

21,100 

21,100 

23 , 500 

23,500

23,500 

24,500 

23,500 

b22,000 

b20,000

b20,000 

b20,000 

b21,000 

«b22,000 

25,000

26 , OOO 

41,200 

46 , 500 

47,200 

45,800

38,800 

35,800 

33,000 

28,600 

b27,000 

b25,000

Feb.

b26,oOO 

b27,000 

b27,000 

b26,000 

b26,000

27,600 

30,200 

33,600 

35,800 

34,600

33,000 

31,900 

30,800 

30,800 

30,800

33,600 

38,800 

39,400 

38,800 

38,800

38,200 

37,000 

38,800 

49,300 

85,500

90,000 

93 , 600 

*83,700

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Ha

her. ....................................

lendar year 1949

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

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

Mar.

70,800 

62,800 

59,600 

62 , 800 

68,400

73,200 

70,000 

65,200 

60,400 

56,600

51,400 

47,900 

44,500 

42,600 

41,200

41,200 

54,400 

81,900 

83,700 

80,100

75,600 

71,600 

70,000 

66,800 

65,200

63 , 600 

60,400 

57,400 

54,400 

50,700 

50,700

Apr.

71,700 

114,000 

97,600 

86,400 

80,100

76,500 

75,600 

78,300 

82,800 

82,800

82,800 

87,300 

94,700 

112 , 000 

110,000

110,000 

104,000 

108,000 

106 , 000 

104,000

106,000 

112,000 

114,000 

106,000 

98,500

89,100 

86,400 

86,400 

81,900 

77,400

Secondfoot-days

761,000 

813,200 

812,300

19,410,600

834,000 

1,156,600 

1,905,100 

2,822,300 

3,697,300 

4,917,000 

2,298,300 

833,000 

690,600

21,540,900

May

79,200 

82,800 

83,700 

81,000 

79,200

77,400 

72,400 

70,800 

71,600 

74,000

80,100 

89,100 

106,000 

125,000 

144,000

153,000 

156,000 

148,000 

138,000 

122,000

112,000 

119,000 

145,000 

160,000 

158,000

157,000 

161,000 

166,000 

167,000 

161,000 

158,000

Maximum

27,000 

43,200 

38,200

243,000

47,200 

93,600 

83,700 

114,000 

167,000 

200,000 

153 , 000 

34,600 

26,500

200,000

June

158,000 

160,000 

160,000 

161,000 

163,000

169,000 

171,000 

165,000 

151,000 

138,000

134,000 

141,000 

153,000 

175,000 

171,000

179,000 

200,000 

196,000 

186,000 

182,000

188,000 

197,000 

185,000 

172,000 

165,000

146,000 

133,000 

133 , 000 

139,000 

146,000

July

153,000 

153,000 

144,000 

134,000 

125,000

119,000 

112,000 

102,000 

95,500 

88,200

85,500 

81,000 

75,600 

70,000 

66,000

63,600 

59,600 

55,800 

52 , 800 

50,700

47,900 

42,600 

40,600 

38,200 

37,000

35,200 

33 , 000 

34,100 

33,600 

34,600 

35,200

Minimum

20,600 

21,500 

23 , 000

17,200

19,200 

26,000 

41,200 

71 , 700 

70, 800 

133,000 

33 , 000 

21,100 

19,700

19,200

Aug.

33,600 

31,900 

30,200 

29,700 

29,200

31,900 

34,600 

33,600 

31,900 

30,200

30,200 

29,700 

29,700 

26,500 

27,000

26,500 

25,000 

26,000 

25,000 

24,000

23,500 

23,000 

22,500 

22,500 

23,000

22,500 

23,000 

21,500 

22,000 

22,000 

21,100

Mean

24,550 

27,110 

26,200

53,180

26,900 

41,310 

61,450 

94,080 

119,300 

163,900 

74 , 140 

26,870 

23,020

59,020

Sept.

21,500 

21,100 

21,500 

20,100 

19,700

19,700 

20,100 

20,100 

20,600 

21,100

21 , 100 

23,500 

24,000 

22,500 

24,000

24,500 

25,000 

24,500 

25,000 

24,500

24,000 

24,000 

24,000 

24,000 

23,000

23 , 500 

26,000 

26,500 

26,000 

25,500

Runoff In 

acre-feet

1,510,000 

1,613,000 

1,611,000

38,500,000

1,654,000 

2,294,000 

3,779,000 

5,598,000 

7,333,000 

9,753,000 

4,559,000 

1,652,000 

1,370,000

42,730,000

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
36 TRIBUTARIES ABOVE SALT RIVER

Pacific Creek near Koran, Wyo.

Location.--Water-stage recorder, lat. 43°51', long. 110"31', in sec. 23, T. 45 N., R. 114

 w!, bO feet downstream from bridge on U. S. Highway 287, half a mile.above mouth, and 

3 miles southeast of Moran. Altitude of gage, 6,720 feet (from topographic map).

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 1950.

Extremes.--Maximum discharge during year, 2,670 second-feet June 17 (gage height, 5.51 

feet); minimum not determined, occurred during period of ice effect.

1917-18, 1944-50: Maximum discharge observed, 3,030 second-feet June 15, 1918 (gage 

height, 3.98 feet, former site and datum); minimum recorded, 32 second-feet Dec. 17, 

1946, but may have been less during period of ice effect.

Remarks. Records fair except those about June 10-30 and those for periods of ice effect, 

wnicn are poor. No diversion or regulation.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

79

78

73

69

72

78

69

67

66

69

69

70

72

66

66

66

72

92

85

80

76

74

70

69

70

70

67

66

69

65

61

Nov.

61

*60

60

60

62

62

62

66

67

67

66

66

65

65

64

61

61

60

60

60

60

58

57

60

62

61

65

74

65

65

-

Dec.

62

58

56

50

50

47

45

45

46

50

52

48

46

41

41

42

43

44

47

47

46

45

45

46

46

45

45

45

45

45

45

Jan.

45

Month

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

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

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

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

January

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

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

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

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

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

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

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

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

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

Feb.

45

(*)

_

_

-

Second 

foot-days

2 215

1, 882

1,458

107, 869

1 395

1^260

1 519

3*641

18,450

46, 470

**! 093

4^096

3,011

106, 490

Mar.

45

45

45

47

50

52

50

48

49

49

48

48

47

47

47

47

47

48

49

50

50

50

48

52

54

53

52

50

49

49

54

Maximum

92

74

62

2,000

54

214

1,330

2,430

1 34C

*20fi

134

2,430

Apr.

55

57

54

*55

55

57

66

73

72

69

74

72

90

100

108

130

153

165

165

174

208

214

206

190

177

172

172

160

150

148

May

148

148

145

143

143

143

145

150

148

150

165

200

245

354

465

585

714

872

714

580

590

853

1,140

1,240

1,010

1,030

1,170

1,330

1,230

1,180

1,320

Minimum

61

57

41

45

54

143

1,030

222

94

86

-

June

1,280

1,240

1,030

1,160

1,400

1,630

1,860

1,650

1,340

1,190

1,280

1,580

1,720

1,860

1,980

2,300

2,430

1,960

1,620

1,580

1,660

1,670

1,620

1,560

1,440

1,270

1,270

1,300

1,290

1,300

-

Mean

71.5

62.7

47.0

296

45.0

45.0

49.0

121

595

1,549

680

132

100

292

July

1,340

1,300

1,270

1,210

1,170

1,140

1,120

1,110

991

938

924

822

720

666

627

565

524

501

474

436

400s

373

347

316

296

279

254

261

261

236

22Z

Per 

square 

mile

0.447

392

.294

1. 85

. 281

. 281

.306

.756

3 72

9* 6fl

4 °825 25

!625

1.82

Aug.

206

194

188

183

178

169

162

152

145

138

138

140

147

140

132

123

119

117

112

112

110

108

105

103

100

100

96

96

95

94

94

Sept.

92

90

86

86

88

66

88

94

105

134

123

110

101

110

117

108

110

108

106

100

95

94

9a

96

95

95

95

92

101

108

-

Runoff

Inches

0.51

.44

.34

25.07

. 32

!29

.35

4^29

10.80

4.90

'.10 95

24.74

Acre-feet

4,390

3 730

2^890

214,000

2,770

2,500

3,010

7,220

36,600

92 170

41^840

8,120

5,970

211,200

Peak discharge (base, 1,500 sec.-ft.J . May 24 (3 a.m.) 1,360 sec.-ft.; May 31 (2 to 3 a.m.) 1,400 

sec.-ft.; June 7 (4 a.m.) Z,O4U sec.-ft.; June 17 (3 a.m.) 2,670 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 17-23, 29, Dec. 1 to about Mar. 24, Mar. 26- 

30, Apr. 3-5 (no gage-height record Dec. 31 to Jan. 5, Jan. 18, 19, Feb. 17, Mar. 21-24: discharge 

computed on basis of weather records and records for nearby Snake River tributaries).
TRIBUTARIES ABOVE SALT RIVER 37

Buffalo Pork near Moran, Wyo.

Location.--Water-stage recorder, lat. 43°50', long. 110°31', in sec. 26, T. 45 N., R. 

114 W., 30 feet below bridge on county road, half a mile above mouth, 2-f miles downstream from Lava Creek, and 4 miles southeast of Moran. Altitude of gage, 6,720 feet 

(from topographic map).

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 1950.

Extremes.--Maximum discharge during year, 3,970 second-feet June 17 (gage height, 5.36 

feet); minimum not determined, occurred during period of ice effect.

1917-18, 1944-50: Maximum discharge observed, 5,840 second-feet June 13, 1918 

(gage height, 6.78 feet, datum then in use), from discharge measurement; minimum recorded, 86 second-feet Dec. 17, 1946 (gage height, 0.95 foot), but may have been less 

during periods of ice effect.

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

version or regulation.

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

Day

1

2

3

4

5

6

Y

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

256

237

228

225

220

228

220

217

212

220

215

217

220

212

212

209

220

260

240

220

212

217

217

209

220

217

217

215

225

212

199

Nov.

209

*207

204

202

204

202

197

209

209

209

209

202

202

199

199

190

192

192

190

192

192

184

192

202

220

212

207

240

204

207

-

Dec .

199

192

197

170

190

180

160

160

170

170

170

170

170

160

160

ICO

160

*170

170

170

170

170

170

170

170

170

170

170

170

170

170

Jan

150

Month

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

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

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

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

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

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

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

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

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

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

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

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

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

Water year 1949-50 .....

Feb.

150

(*)

-

-

-

Secondfoot-days

6,848

6,079

5,518

205,121

4,650

4*650

7,940

25 27O

86^030

77,090

22 ,470

10,879

261,424

Mar.

150

Maximum

260

240

199

^ ??0

_ r

Qflr

3*790

3,840

1,040

543

3,840

Apr

140

150

155

150

140

140

150

170

190

20O

200

200

220

250

296

35b

417

385

347

366

450

502

406

329

288

278

304

274

253

234

-

May

231

237

247

250

247

247

244

244

244

247

256

267

338

508

670

f795

f930

1,110

881

707

707

f923

1,480

1,840

1,500

1,430

al,430

al,530

hi, 850

al,700

1,980

Minimum

199

184

160

140

231

1,720

1,170

433

278

-

June

2,110

2 , 180

1,720

1,830

2,330

2,960

h3,560

a2,300

h2,530

h2,090

al,800

a2,100

a2,300

a2,500

2,680

3,230

3,790

3,380

3,280

3,280

3,400

3,590

3,790

3,410

3,440

3,050

2,930

3,150

3,210

3,510

-

Mean

221

203

172

562

150

150

150

265

815

2!487

725

363

716

July

3,700

3,840

3,790

3,740

3,630

3,430

3,470

3,440

3,280

3,220

3,440

3,230

2,790

2,550

2,410

2,280

2,110

1,970

1,920

1,900

1,850

1,750

1,670

1,600

1,540

1,490

1,510

1,460

1,500

1,360

1,170

Per 

square 

mile

0.585

.537

45^

1.49

397

. 397

397

.701

2 . 16

7 59

6 . 58

1.92

.960

1.89

Aug.

1,040

1,

1,

1,

300

320

330

1,030

970

316

367

328

795

795

776

764

745

720

701

701

376

358

640

615

303

579

561

543

543

520

496

179

156

433

Sept.

422

406

391

375

366

356

347

352

391

479

543

484

422

396

417

347

361

371

342

325

312

300

312

312

292

288

296

278

296

300

-

Runoff

Inches

0.67

.60

52

20.17

.46

.41

.46

. 78

2.49

8.46

7 . 58

2.21

1.07

25.71

Acre-feet

13,580

12,060

10,550

406,900

9,220

8,330

9 22O

15*750

50,120

170,600

152 , 900

44,570

21,580

518,500

Peak discharge 5,100 :.-ft.).--June 7 (time unknown) 3,56O sec.-ft.; June 17 (5 a.m.) 

3,970 sec.-ft.; July 2 (10 a.n o. ) 3,96O sec.-ft.

* Winter discharge measurement made on this day. 

a. No gage-height record; discharge computed on basis of weather records and records for Gros 

Ventre River at Kelly and Hoback River near Jackson, 

f Computed from partly-estimated gage-height record. 

h Computed from staff-gage reading.

Kote. Stage-discharge relation affected by Ice Dec. 6 to Apr. 14 (no gage-height record Dec. 27 

to Feb. 24 except aoout once-weekly staff-gage readings; discharge computed on basis of weather records and records for Gros Ventre River at Kelly and Hoback River near Jackson).
38 TRIBUTARIES ABOVE SALT RIVER 

Gros Ventre River at Kelly, Wyo.

Location. Staff gage, lat. 43°37', long. 110°38>, in NW^ sec. 11, T. 42 N., R. 115 W.,

at former bridge site on private road, 0.3 mile south of Kelly post office and 3 miles

downstream from Turpin Creek. Altitude of gage is 6,750 feet (from topographic map).

Drainage area.--622 square miles.

Records available.--October 1944 to September 1950. June to September 1918, at site 1 mile 

upstream.

Extremes.--Maximum discharge observed during year, 3,510 second-feet June 8 (gage height, 

6.64 feet); minimum observed, 118 second-feet Feb. 2 (gage height, 1.06 feet).

1918, 1944-50: 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; minimum gage height observed, that of Feb. 2, 1950.

Flood of May 18, 1927, when landslide about 2 miles upstream washed out and released 

about 60,000 acre-feet of impounded water, was considerably higher; discharge not 

determined.

Remarks.--Records go'od. Diversions above and below station for irrigation. 

Revisions. W 1043: Drainage area.

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

197

210

210

205

203

205

205

2O7

205

205

205

205

205

203

203

203

199

227

255

260

248

241

232

227

218

218

212

214

210

207

203

Nov.

195

191

191

187

183

183

183

181

181

191

195

181

181

175

175

179

174

172

168

165

163

158

154

159

168

179

181

193

205

197

-

Dec.

187

179

172

152

151

141

139

139

144

154

158

141

141

128

128

131

139

144

151

152

151

147

144

151

147

147

149

149

147

151

144

Jan.

151

151

144

128

122

125

125

126

133

138

139

136

136

141

131

128

141

142

144

144

152

154

158

144

133

126

144

141

139

130

136

Month

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Feb.

138

118

120

138

144

146

144

134

144

136

144

134

139

141

141

142

144

136

133

142

138

141

144

144

147

151

149

151

_

_

-

Secondfoot-days

6,647

5,388

4,598

158,419

4,282

3 923

4J302

10,076

28, 938

78,120

47,029

13,649

8,427

215,379

Mar.

138

139

136

144

151

156

151

142

146

146

139

139

134

134

136

133

136

141

142

142

- 139

138

136

138

139

139

138

133

125

122

130

Maximum

260

205

187

2,480

158

151

156

756

2 ,26C

3,510

2,570

730

342

3,510

Apr.

a!38

147

154

151

142

146

154

172

189

189

189

197

218

265

315

398

475

593

548

484

509

674

756

645

492

406

368

339

327

296

-

May

272

257

253

250

241

229

225

227

229

227

229

253

321

496

715

972

,140

,240

,270

996

810

996

,400

,900

,940

,710

,710

,020

,260

,970

,180

Minimum

197

154

128

125

122

118

122

138

225

1,790

740

270

238

118

June

2,420

2,470

2,280

1,820

1,950

2,490

3,220

3,510

2,630

1,990

1,790

2,030

2,560

2,740

2,920

3,010

3,320

3,410

3,100

2,830

2,830

2,920

3,100

3,020

2,660

2,400

2,080

2,080

2,250

2,290

-

Mean

214

180

148

434

138

140

139

336

933

2,604

1,517

440

281

590

July

2,410

2,49O

2,570

2,490

2,370

2,330

2,220

2,220

2,100

1,940

2,100

2,140

1,820

1,610

1,400

1,340

1,240

1,160

1,100

948

912

883

838

804

794

762

740

762

826

872

838

Per

square 

mile

0.344

.289

.238

.698

.222

.225

.223

.540

1.50

4.19

2.44

.707

.452

.949

Aug.

730

699

621

630

640

630

602

556

522

496

480

455

447

447

436

416

402

381

368

348

342

333

324

318

307

307

290

290

285

277

270

Sept.

262

255

255

245

241

238

1239

241

257

280

313

342

336

315

313

307

307

304

307

299

296

290

280

283

280

275

265

260

262

280

-

Runoff

Inches

O.4O

.32

.27

9.47

.26

.23

.26

.60

1.73

4.67

2.81

.82

.50

12.87

Acre-feet

13,180

10,690

9,120

314,200

8,490

7,780

8,530

19,990

57,400

154,900

93,280

27,070

16,710

427,100

a No gage-heighb record; discharge computed on basis of weather records and records for Hoback 

River ne,ar Jackson and other nearby streams.
TRIBUTARIES ABOVE SALT RIVER 39

Hoback River near Jackson, Wyo.

Location.--Staff gage, lat. 43°17'55", long. 110°40'10", in sec. 32, T. 39 N., R. 115 W., 

at Camp Creek Camp, a quarter of a mile downstream from Willow Creek, 4 miles upstream 

from mouth, and 13g miles southeast of Jackson. Altitude of gage, 6,040 feet (from 

topographic map).

Drainage area.--564 square miles.

Records available.--November 1944 to September 1950. 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, 4,290 second-feet June 7 (gage height, 

b.ia feet); minimum observed, 158 second-feet Mar. 30 (gage height, 2.13 feet).

1917-18, 1944-50: Maximum discharge observed, 6,160 second-feet June 16, 1918 (gage 

height, 13.46 feet, former site and datum); minimum observed, 90 second-feet Dec. 18, 

1946 (gage height, 1.70 feet).

Remarks.--Records fair. Gage read once daily, 

station for irrigation.

Ho regulation. Small diversions above

Rating tables, water year 1949-50, except periods of Ice effect 

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

Oct. 1 to May 14 May 15 to Sept. 30

2.1 

2.3 

Z.4 

2.6 

2.9

151

206

243

341

534

3.4 

4.0 

4.5 

5.2

930 

1,500 

2.0ZO 

2,800

2.6 

3.0 

3.6 

4.2

332

600

1,090

1,660

4.8 

5.4 

6.2

2,310

3,060

4,320

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct

325

274

266

274

284

274

266

266

274

284

274

270

266

256

248

256

266

293

284

293

293

284

274

266

261

266

274

266

293

288

274

Nov.

266

270

*252

248

256

239

232

256

284

256

252

266

243

256

252

239

232

210

239

217

203

185

224

266

293

266

266

408

293

274

-

Dec.

239

210

256

179

174

210

182

224

236

224

217

b210

194

b!90

b!80

b!90

b!90

191

*217

203

200

194

213

' 224

217

210

213

210

194

248

206

Jan.

232

217

191

b!90 bieo

bieo biao bieo

b!90

194

185

186

197

185

179

185

200

194

200

210

224

217

228

213

191

185

176

191

185

b!80

b!90

Month

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Feb.

bieo

b!70

bieo

b!90

206

210

194

200

186

191

206

194

179

203

210

197

206

182

191

*191

200

185

197

206

213

224

203

210

_

_

-

Secondfoot-days

8,532

7,643

6,445

241,747

6,037

5,506

5,872

20,076

68,479

100,760

65,520

22,195

12,968

330,035

Mar.

168

166

206

210

203

213

174

179

210

197

206

185

168

197

200

176

206

217

191

194

174

176

179

200

197

191

176

174

164

156

197

Maximum

325

408

256

3,280

232

224

217

1,710

3,710

4,290

3,710

1,030

548

4,290

Apr.

210

248

206

206

194

217

239

279

274

256

270

304

353

473

493

628

811

1,040

957

984

1,250

1,640

1,710

1,140

966

984

1,190

1,000

828

728

-

May

777

744

768

794

728

744

962

811

828

913

1,090

1,620

2,200

2,750

2,980

3,370

3,230

3,710

2,600

2,160

2,220

2,700

3,710

3,590

3,140

2,960

3,030

3,590

3,090

3,060

3,710

Minimum

248

185

174

142

176

170

158

194

728

2,500

1,040

463

367

158

June

3,520

3,550

2,900

2,600

2,850

3,550

4,290

3,710

2,830

2,500

2,600

2,830

3,170

3,300

3,520

3,840

4,220

3,710

3,810

3,590

3,880

3,780

4,010

3,520

3,140

2,750

2,850

3,090

3,260

3,590

-

Mean

275

255

208

662

195

197

189

669

2,209

3 359

2J114

716

432

904

July

3,550

3,710

3,490

3,230

3,090

3,140

2,880

2,830

2,700

2,600

2,830

2,410

2,180

2,050

1,890

1,890

1,740

1,630

1,600

1,560

1,500

1,420

1,380

1,350

1,330

1,290

1,270

1,330

1,360

1,250

1,040

Per

square 

mile

0.488

.452

.369

1.17

.346

.349

.335

1.19

3.92

5.96

3.75

1.27

766

1.60

Aug.

,020

,

,

,

300

300

330

,000

937

386

344

335

819

771

763

739

723

715

683

568

345

330

615

593

578

308

548

563

541

512

505

184

177

463

Sept.

456

450

436

430

417

398

410

436

519

548

541

484

450

450

436

450

436

424

436

410

398

379

367

379

379

385

379

398

424

463

-

Runoff

Inches

0.56

.50

.42

15.92

.40

.36

.39

1.32

4.52

6.64

4.32

1.46

.86

21.75

Acre feet

16,920

15,160

12,780

479,500

11,970

10,920

11,650

39,820

135,800

199,900

130,000

44,020

25,720

654,700

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SALT RIVER BASIN

Salt River near Smoot, Wyo.

Location. Water-stage recorder, lat, 42°36', long. 110°55', in sec. 7, T. 30 N., R. 118 

W., 1-jf miles south of Smoot and ij miles upstream from Willow Creek,

Drainage area.--47.8 square miles,

Records available.--June 1932 to September 1950 (no winter records 1933-35, 1936-37).

Average discharge.--14 years (1935-36, 1937-50), 36.9 second-feet.

Extremes. Maximum discharge during year, 367 second-feet May 31 (gage height, 3.44 feet); 

minimum daily, 6.5 second-feet Dec. 3.

1932-50: Maximum discharge, 430 second-feet May 15, 1936, from rating curve extended 

above 200 second-feet; no flow Jan. 25-28, 1949.

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

which are fair. A few diversions above station for irrigation.

Revisions.--W 1123: Drainage area.

Rating tables, water year 1949-50, except period of Ice effect 

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

(Shifting-control method used Apr. 5 to May 28)

Oct. 1 to May IS May 19 to Sept. 3O

1.3

1.4

1.5

1.6

1.7

1.8 36

2.0 

2.4 

3.5

58

116

308

1.3

1.4

1.5

10

14.5

Z0.5

1.6

1.7

1.8 48

1.9 

2.3

3.5

62

134

380

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

]Q 

8.5 

8.0 

7.7 

7.7

8.0 

9.0 

9.0

9.5 

9.5

9.0 

9.0 

8.5 

8.0 

9,0

9.0

13 

17 

12 

12

12 

12 

12 

12 

11

11 

10 

11 

12 

10 

10

Nov.

9.5

9.0 

9.0 

8.5 

8.5

8.5 

8,5 

9.5 

9.5 

11

9.5 

9.0 

9.5 

8.5 

9.0

*9.0 

9.0 

8.5 

8.0 

8.0

7.4

8.5 

9.0 

9.5 

9.0

8.5 

8.5 

12 

9.5 

8.5

Dec.

7 .7 

9.5 

6.5 

6.8 

*8.6

7.6 

7.3 

8.2 

8.6 

8.4

7.6 

7.8 

7.7 

7.4 

7.5

7.9 

8.0 

8.1 

8.3 

7.8

7.7 

8.0 

8.1 

7.8 

7.7

7.9 

8.1 

8.5 

8.8 

8.6 

8.6

Jan.

8.8 

9.2 

8.6 

8.3 

8.4

8.9

9.3 

9.2 

9.1 

8.8

8.8 

9.2 

9.2 

9.2 

9.5

9.5 

9.8

10 

11 

11

12 

12 

12 

11 

11

*11 

10 

10 

10 

10 

10

F?t>,

9.6 

8.4 

8.8 

10 

11

10 

9.8 

9.8 

9.9 

*9.9

9.4 

9.0 

8.8 

9.1 

10

10 

10 

9.5 

9.0 

8.8

8.7 

8.6 

8.7 

9.3 

10

10 

9.8 

9.0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

St......................................

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

Mar.

8.8 

8.6 

*8.S 

9.1 

9.5

9.8 

9.5 

9.2 

9.5 

9.7

9.3

8.8 

8.7 

8.8 

9.2

8.5 

8.0 

8.8 

8.8 

8.8

8.5 

8,4 

8.4 

8.6 

8.8

8.6 

8.4 

8.2 

7.7 

7.8 

8.3

Apr.

8.5 

8.3 

7.9 

7.6 

*7.7

3.0 

11 

15 

15 

12

12 

15

21 

27 

31

44

59 

65 

65 

79

102 

111 

105 

87 

85

85 

89 

79 

71 

64

Secondfoot-days

316.4 

269.9

247.1

11,861.0

304.8 

264.9 

271.9 

1,397.0 

5,768 

7,146 

2,914 

871 

480

20,251.0

May

62 

58 

57 

54 

48

46 

48 

47 

46 

46

54 

79 

122 

174 

207

227 

249 

303 

240 

224

240 

274 

290 

302 

296

296 

317 

345 

334 

334 

349

Maximum

17 

12 

9.5

188

12 

11 

9.8 

111 

349 

328 

180 

47 

19

349

June

328 

323 

282 

244

246

286 

323 

292 

254 

230

220 

238 

246 

254 

248

252

266 

250 

226 

206

208 

220 

220 

216 

190

178 

176 

176 

170 

178

July

178 

180 

170 

162 

148

134 

119 

110 

106 

108

108 

99 

95 

93 

90

86 

83

77 

74 

67

65 

59 

58 

56 

55

55 

58 

58 

62 

52 

49

Minimum

7.7 

7.4 

6.5

0

8.3 

8.4

7.7 

7.6 

46 

170 

49 

19 

14

6.5

Aug.

47 

46 

44 

39 

37

34 

33 

32 

31 

29

30 

31 

31 

30 

28

27 

26 

25 

24 

23

22

21 

21 

21 

20

20 

20 

20 

20 

20 

19

Mean

10.2 

9.00 

7.97

32.5

9.83 

9.46 

8.77 

46.6 

186 

238 

94.0 

28.1 

16.0

55.5

Sept.

19 

19 

18

17 

16

16 

16 

17 

18 

18

1« 

16 

16 

17 

17

16 

15 

15 

14 

14

14 

16 

16 

15 

14

14 

14

14 

15 

16

Runoff In 

acre -feet

628 

535 

490

23,520

605 

525 

539 

2,770 

11,440 

14,170 

5,780 

1,730 

952

40,160

Peak discharge (base, 170 sec.-ft.).--May 18 (6 a.m.) 326 sec.-ft.) May 31 (4 a.m.) 367 sec.-ft.; 

June 7 (6 p.m.) 334 sec.-ft.; June 17 (6 a.m.) 270 sec.-ft.

* Winter discharge measurement made on this day.

Note.---Stage-discharge relation affected by Ice Dec. 4 to Jan. 13. No gage-height record Jan. 14 

to Apr. 4 (stage-discharge relation affected by ice during most of period); discharge computed on 

basis of 3 discharge measurements, weather records, and records for stations on nearby streams.
SALT RIVER BASIN

Salt River at Wyoming-Idaho State line

Location. Water-stage recorder, lat. 43°10', long. 111"04' , in sec. 16, T. 3 S., R. 46 

E , "Just downstream from Trout Creek, half a mile upstream from mouth, and threequarters of a mile west of Wyoming-Idaho State line.

Drainage area. 890 square miles.

Records available.---April 1934 to September 1950.

Average discharge. 16 years, 710 second-feet.

Extremes. Maximum discnarge during year, 3,130 second-feet May 25 (gage height, 4.44

 feet); minimum daily, 400 second-feet Feb. 2,3.

1934-50: Maximum discharge, 3,520 second-feet May 6, 1936 (gage height, 4.64 feet), 

from rating curve extended above 2,600 second-feet; minimum, 216 speo.^'-feet Ma;* 17, 

1934 (gage height, 1.30 feet); minimum daily, 220 second-feet May 17, 1:"'':)4.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are fair. Diversions above station for irrigation. Plow partly regulated 

by many small power plants on tributaries.

Rating table, water year 1949-50, except periods of ice effect 

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

1.6 385

1.8 455

2.0 560

2.4 840

3.0 1,350

3.5 1,900

4,1 2,650

4.5 3,220

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

Bay

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

644 

618 

599 

592 

599

606 

606 

606 

606 

625

625 

625 

625 

618 

618

612 

632 

742 

728 

712

684 

677 

677 

677 

670

658 

644 

644 

651 

644 

632

Nov.

618 

606 

606 

606 

606

592 

586

612 

618 

644

651 

625 

612 

599 

592

592 

586 

580 

573 

566

566 

560 

566 

651 

651

638 

612 

664 

658 

644

Dec.

618 

59S 

592

560 

560

»548 

530 

536 

542 

548

530 

524 

530 

524 

512

b500 

b500 

5OO 

506

500

496 

491 

500 

500 

491

512 

482 

482 

464 

473 

482

Jan.

473 

496 

478 

478 

b470

b470 

b480 

b470 

464 

431

431 

443 

439 

447 

b430

b435 

b440 

455 

455 

470

480 

495 

500 

500

490

480 

*b475 

b460 

440 

425 

420

Feb.

430 

400 

400 

410 

440

435 

425 

420 

*435 

431

443 

435 

415 

427 

419

427 

427 

423 

419 

427

419 

415 

431 

435 

435

443 

443 

447

Month

Goto 

Move 

Deoe

Ca

Janu 

Pebr 

Hare 

Aprl

Ntav

June 

July 

Augu 

Sept

Ha

lendar year 1949

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

Mar.

451 

451 

447 

447 

4G4

486 

473 

468 

468 

468

468 

464 

464 

464 

460

460 

478 

524 

512 

506

496 

491 

486 

491 

491

486 

486 

482 

468 

468 

468

Apr.

496 

566 

644 

612 

612

612 

750 

904 

1,020 

984

1,010 

1,140 

1,310 

1,550 

1,660

1,920 

2,150 

2,300 

2,190 

2,220

2,350 

2,470 

2,430 

2,160 

1,980

1,890 

1,920 

1,920 

1,800 

1,660

Secondfoot -days

19,896 

18,280 

16,132

259,761

14,320 

11,936 

14,736 

45,250 

69,130 

61,870 

37,550 

28,252 

23,983

361,335

May

] ,600 

i,G80 

1,550 

1,520 

1,470

1,430 

1,410 

1,470 

1,460 

1,450

1,450 

l.SbiJ 

1,830 

2,070 

2,300

2,510 

2,620 

2,710 

2,760 

2,610

2,530 

2,610 

2,820 

3,030 

3,080

3,000

2,940 

2 , 950 

2.B70 

2.930 

-' , 900

Maximum

742 

664 

618

1,820

500 

447 

524 

2,470 

3,080 

2,860 

1,420 

1,070 

920

3,080

June

2,860 

2,830 

2,860 

2,820 

2,620

2j510 

2,550 

2,600 

?,600 

2,460

2,240 

2,130 

2,080 

1,T70 

1,940

1,910 

1,860 

1,860 

1,890 

1,820

1,700 

1,680 

1,650 

I,t40

l,i-50

1,580 

1,470 

1,-1/iO

1 ,3O&

July

1,280 

1,280 

1,270 

1,240 

1,280

1,280 

1,280 

1 ,290 

1,270 

1,290

1,420 

1,390 

1,340 

1,300 

1,260

1,240

1,220 

l,22t 

1,180 

1,160

1,130 

1,110 

1 , 1 00 

1,090 

1,060

1 , 040 

1,120 

1,090 

1,120 

1,110 

1,1*0

Aut.

1,070 

1,040 

1,020 

1,000 

1,010

1,000 

934 

968 

952 

936

944 

960 

960 

952 

952

928 

912 

896 

880 

880

864 

848 

340 

Si 2 

825

810 

802 

802 

802 

795 

780

Mlnlratun I Meai

592 642

560 609 

464 520

384 712

420 462 

400 426 

447 475 

496 1,508 

1,410 2,230 

1,300 2,062 

1,040 1,211 

780 911 

728 799

400 990

Sept.

765 

765 

750 

758 

742

728 

728 

742 

788 

825

818 

810 

825 

825 

832

825 

818 

810 

79b 

802

802 

810 

810 

818 

810

818 

810 

802 

832 

920

Runoff In 

acre-feet

39,460 

36,260 

32,000

515,200

28,400 

23,670 

29,230 

89,750 

137,100 

12E,700 

74,480 

56,040 

47,570

716,700

Peak discharge (base, 850 sec.-ft.) .--ftpr. 22 (8:30 p.m.) 2,530 sec.-ft.; May 25 (6 p.m.) 3,130 

sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Jan. 20-26, Jan. 29 to Feb. 8 (stage-discharge relation affected by 

Ice during part of periods); discharge computed on basis of weather records and recorded range in 

stage.

253646 0-53-4
42 SALT RIVER BASIN

Cottonwood Creek near Smoot, Wyo.

Location. Water-stage recorder, lat. 42°37 I , long. 110 0 53', in sec. 4, T. 30 N., R. 118 

W. , iv miles downstream from Porcupine Creek and ij- miles southeast of Smott.

Drainage area. --26. 3 square miles.

Records available . May 1933 to September 1950.

Average discharge. 17 years, 42.7 second-feet.

Extremes. Maximum discharge during year, 256 second-feet June 7; maximum gage height, 2.82 

feet June 17; minimum discharge, 8.2 second-feet Jan. 19 (gage height, 0.95 foot).

1933-50: Maximum discharge observed, 332 second-feet June 17, 18, 1933 (gage height, 

2.76 feet, site and datum then in use), from rating curve extended above 230 second-feet; 

minimum, 6.4 second-feet Mar. 11, 1948; minimum gage height, that of Jan. 19, 1950.

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

sion above station. Flow regulated by Cottonwood Lake.

Revisions (water years). W 933: Drainage area. W 1153: 1933-34.

No diverDischarge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

26 

23 

23 

23 

23

23 

23 

22 

22 

22

22 

22 

22 

22 

21

21 

23 

26 

23 

23

21 

21 

20 

2O 

20

19 

19 

20 

21 

20 

19

Nov.

19 

19 

19 

19 

19

19 

18 

19 

19 

19

18 

18 

18 

18 

18

18 

18 

18 

18 

17

17 

17 

17 

17 

17

16 

16 

18 

18 

18

Dec.

17 

17 

16 

16 

*16

16 

16 

16 

17 

17

17 

17 

16 

b!6 

b!6

17 

17 

17 

17 

17

17 

17 

17 

17 

18

18 

18 

*18 

18 

18 

18

Jan.

18 

18 

b!7 

b!6 

b!6

b!6 

17 

16 

16 

16

16 

16 

16 

16 

b!6

16 

16 

14 

16 

16

16 

16 

16 

16 

blS

»b!4 

15 

14 

b!4 

b!4 

b!4

Feb.

b!3 

b!3 

b!3 

b!4 

14

 14 

14 

b!4 

14 

*14

14 

14 

14 

14 

14

14

14 

14 

14 

14

14 

14 

14 

14 

13

14 

14 

13

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 194

ter year 1949-5O .......................

Peak discharge (base, 14O sec. -ft.), June

June 17 (7 a.m.) 241 sec. -ft.; July 2 (8 a.m 

* Winter discharge measurement made on thl 

b Stage-discharge relation affected by Ice

Mar.

13 

13 

13 

13 

14

14 

14 

14 

13 

13

13 

13 

13 

12

12

12 

13 

13 

13 

13

12 

12 

12 

12 

12

12 

12 

12 

12 

12 

12

Apr.

12 

12 

12 

12 

11

12 

14 

16 

16 

16

16 

17 

20 

23 

25

27 

30 

30 

30 

32

36 

39 

40 

38 

36

34

34 

33 

32

30

Secondfoot-days

675 

539 

525

15,143

488 

387 

393 

735 

2,115 

5,875 

4,373 

1,887 

1,020

19,012

May

29 

28 

27 

26 

26

25 

25 

25 

24 

23

25 

26 

30 

39

47

56 

66 

80 

76 

68

69 

80 

100 

124 

124

119 

126 

148 

138 

146 

170

Maximum

26 

19 

18

230

18 

14 

14 

4O 

170 

237 

230 

90 

39

237

June

178 

19O 

174 

156 

164

199 

237 

223 

186 

182

154 

168 

182 

197 

212

228 

230 

215 

188 

170

186 

204 

215 

219 

206

195 

195 

197 

206 

219

July

221 

230 

223 

215 

208

197 

188 

172 

160 

156

154 

148 

142 

140 

134

130 

128 

122 

119 

113

110 

105 

101 

98 

98

96 

96 

94 

94 

91 

9O

Aug.

90 

88 

85 

84 

80

78 

75 

72 

70 

69

68 

66 

66 

63 

61

60 

58 

57 

56 

54

51 

51 

50 

51 

46

39 

40 

40 

39 

40 

40

Minimum Mean

19 21.8 

16 18.0 

16 16.9

14 41.5

14 15.7 

13 13.8 

12 12.8 

11 24.5 

23 68.2 

154 196 

90 141 

39 60.9 

29 34.0

11 52.1

Sept.

39 

39 

39 

39 

38

38 

38 

38 

38 

37

37 

36 

35 

35 

34

34 

33 

32 

32 

32

31 

30 

30 

3O 

30

30 

29 

29 

29 

29

Runoff In 

acre-feet

1,340 

1,070 

1,040

30,040

968 

768 

780 

1,460 

4,200 

11,650 

8,670 

3,740 

2,020

37,710

2 (10 a.m.) 195 sec. -ft.; June 7 (l p.m.) 256 sec, -ft.; 

) 241 sec. -ft. 

3 day.
SALT RIVER BASIN 43

Swift Creek near Afton, Wyo.

Location. Water-stage recorder, lat. 42°43'30", long. 110°5^ 

M., H. 118 W., 1 mile upstream from mouth of canyon and 1=

Drainage area. 27.4 square miles.

Records available. May 1943 to September 1950.

'00", in SEi sec. 29, T. 32 

miles east of Afton.

Bar, 540 second-feet June 30 (gage height, 3.40 feet), 

50 second-feet; minimum daily, 30 second-feet Feb. 11,

Extremes.--Maximum discharge during 

rrom rating curve extended above 

12, 14, 15.

1943-50: Maximum discharge, 560 second-feet June 10, 1948, from rating curve extended above 320 second-feet; maximum gage height, that of June 30, 1950; minimum daily discharge, 28 second-feet Apr. 3, 4, 1945.

Remarks. Records good above 50 second-feet and fair below. Pipe line (capacity, about 

t> second-feet) diverts water above station for town of Afton. Diurnal regulation caused 

by small power plant and reservoir a quarter of a mile upstream.

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

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

47 

47 

46 

49 

49

48 

48 

47 

47 

46

44 

47 

47 

45 

45

44 

46 

47 

45 

44

45 

45 

43 

46 

44

44 

45 

43 

46 

42 

46

Nov.

43 

44

43 

43 

44

40 

41 

45 

41 

40

41 

40 

41 

43 

40

42 

40 

39 

40 

39

39 

37 

40 

38 

40

40 

39 

38 

42 

40

Dec.

38 

40 

39 

40 

41

40 

41 

39 

39 

41

40 

40 

37 

39 

40

39 

40 

39 

40 

39

38 

37 

40 

40 

38

39 

40 

39 

39 

37 

41

Jan.

39 

40 

40 

39 

39

39 

38 

38 

39 

39

38 

37 

38 

38 

38

38 

38 

38 

38 

39

38 

38 

36 

37 

37

37 

37 

36 

36 

36 

34

Feb.

34 

33 

33 

a32 

a32

a32 

a32 

a32 

32 

31

30 

30 

31 

30 

30

31 

31 

31 

31 

32

32 

32 

32 

32 

32

32 

32 

32

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

fere 

Aprl 

Hay.

June 

July 

Augu 

Sept

Ha

lendar year 194 

ary

1.,... ..................................

ter year 1949-5O .......................

Mar.

32 

33 

34 

34 

32

33 

33 

32 

32 

33

33 

32 

32 

32 

33

34 

33 

34 

33 

33

32 

32 

33 

33 

33

33 

32 

32 

32 

32 

32

Apr.

32 

32 

32 

32 

32

32 

32 

35 

34 

33

32 

33 

35 

37 

37

39 

41 

41 

41 

43

45 

48 

45 

44 

43

43 

43 

44 

44 

43

Secondfoot -days

1,417 

1,222 

1,219

29,963

1,172 

886 

1,013 

1,147 

3,070 

10,416 

8,464 

3,671 

2,149

35,846

May

43 

41 

42 

41 

42

43 

42 

43 

42 

43

41 

44 

46 

50 

59

74 

85 

112 

99 

92

102 

126 

150 

181

170

163 

185 

207 

188 

207 

268

Maximum

49 

45 

41

455

40 

34 

34 

48 

268 

485 

470 

153 

87

485

June

282 

314 

264 

226 

255

255 

300 

291 

268 

226

226 

260 

286 

282 

309

336 

390 

390 

475 

445

455 

470 

465 

440 

400

415 

410 

376 

420 

485

July

470 

470 

381 

350 

340

291 

286 

291 

286 

296

286 

296 

273 

278 

278

278 

278 

260 

255 

247

243 

234 

230 

226 

214

207 

203 

199 

188 

170 

160

Aug.

153 

150 

140 

143 

140

137 

135 

135 

132 

129

126 

126 

123 

121 

121

121 

118 

115 

115 

112

110 

1O7 

105 

102 

99

97 

97 

94 

92 

89 

87

Nlnlmun Mean

42 45.7 

37 40.7 

37 39.3

36 8?.l

34 37.8 

30 31.6 

32 32.7 

32 38.2 

41 99.0 

226 347 

160 273 

87 118 

61 71.6

30 98.2

Sept.

87 

87 

85 

80 

76

80 

80 

80 

82 

82

80 

80 

78 

69 

67

67 

67 

65 

67 

65

65 

65 

64 

62 

62

62 

62 

61 

61 

61

Runoff In 

acre-feet

2,810 

2,420 

2,420

59,410

2,320 

1,760 

2,010 

2,280 

6,090 

20,660 

16,790 

7,280 

4,260

71,100

Peak discharge (base, 390 sec . -f t . ) . June 2 (3 p.m.) 455 sec. -ft.; June 6 (8:30 p.m.) 470 sec. -ft.;

a No gage-height record; discharge computed on basis of weather records, recorded range In stage, 

and records for stations on nearby streams.
44 HENRYS FORK BASIN

Henrys Fork near Lake, Idaho

Location.--Water-stage recorder, lat. 44°36', long. 111°21', In SW£ sec. 26, T. 15 N., 

R~7 43 E., 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 1950. 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. ,30 years, 47.7 second-feet.

Extremes. --Maximum discharge during year, 375 second-feet Sept. 12 (gage height, 4.09 feet); 

minimum daily, 5 second-feet during October and November (leakage through reservoir 

gates).

1920-50: 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, which are fair, 

flow regulated by Henrys Lake (see p. 53 ), gates of which remained closed Oct. 16 to 

July 27 and Sept. 13-30. Very little diversion from Dry Creek into Henrys Lake during 

year.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

Z8 

29 

30 

31

Oct.

70 

69 

68

67 

67

66 

65 

64 

64 

64

63 

62 

62 

62 

36

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

5 

5

Hov.

5

5 

5 

5

5

5 

5 

f5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5

5 

5 

5 

5

5 

5 

5 

5 

5

Dec.

6

Jan.

7

Feb.

8

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

ter year 1949-5O ...............

Mar.

10

Apr.

12

Secondfoot-days

1,029 

150 

186

20,269

217 

224 

310 

360 

385 

582 

3,394 

4,358 

1,906

13,101

May

13 

13 

13 

13 

13

13 

13 

13 

13 

13

13 

13 

13 

13 

13

13 

13 

13 

13 

13

13

13 

13 

11

11

11 

11 

11 

11 

10 

10

Maximum

70 

5

£51

53 

292

269 

127

292

June

10 

10 

10 

10 

10

10

11 

11 11 11

12

13 

13 

13 

14

14 

14 

14 

16 

16

18 

20 

21 

25 

28

32

41 

50 

51 

53

Minimum

July

57 

59 

59 

63 

63

65 

69 

76 

76 

81

93 

90 

91 

95 

96

96 

96 

95 

96 

97

97 

101 

102 

104 

105

107 

109 

201 

292 

285 

278

5

5

-

10 

57 

126 

15

-

Aug.

269 

267 

186 

130

131

131 

131 

132 

132 

132

132

134 

131 

131 

132

131 

131 

132 

132 

131

130 

128 

128 

127 

127

126 

127 

127 

126

127 

127

Mean

33.2

5.0 

6

55.5

7 

8 

10 

12.0 

12.4 

19.4 

109 

141 

63.5

35.9

Sept.

127 

127 

127 

127 

126

125 

126 

126 

125 

123

117 

84 

29 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

21 

15 

15 

15 

15

Runoff In 

acre-feet

2,040 

298 

369

40,200

430 

444

615 

714 

764 

1,150 

6,730 

8,640 

3,780

25,970

Note. Ho gage-height record Nov. 9 to May 21j discharge computed on basis of 4 discharge measurements made Nov. 8, Feb. 9, Apr. 19, May 22. Monthly mean discharges only December to April, 

f Computed on basis of partly estimated gage-height record.
HENRYS FORK BASIN 45 

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 1950.

Extremes. Maximum contents during year, 136,825 acre-feet June 8, 9 (elevation, R,303.20

 feet); minimum, 28,935 acre-feet Oct. 17, 19, 24 (elevation, 6.281.52 feet).

1938-50: 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, 

1340 (elevation, 6,274.22 feet).

Remarks.--Reservoir is formed by earth-fill, rock-faced dam. Storage began Nov. 15, 1338.

 Capacity, 127,265 acre-feet between elevations 6,239 feet (normal low-water level with 

outlet gates open) and 6,302 feet (crest of spillway). Natural flow passing through 

reservoir when outlet gates are open prevents withdrawal of storage to elevation 6,230 

feet (sill of lower outlet). 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, water year October 1949 to September 1950

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

29,280

29,390

29,415

29,415

29,345

29,415

29,435

29,415

29,390

29,415

29,370

29,345

29,305

29,280

29,150

29,085

28,935

29,020

28,935

28,955

28,955

28,955

28,955

28,935

29,020

29,105

29,195

29,195

29,215

29,215

29,215

Nov.

29,195

29,195

29,170

29,170

29,170

29,105

29,085

29,060

29,215

29,480

29,545

29,545

29,565

29,565

29,610

30,605

31,510

32,395

33,255

34,120

35,000

35,905

36,835

37,675

38,500

39,410

40,375

41,325

42,175

43,040

-

Dec.

43,930

44,735

45,555

46,355

47,130

47,850

48,730

49,545

50,305

51,305

52,090

52, 805

53,610

54,425

55,215

56,055

56,950

57,945

58,870

59,990

60,810

61,640

62,335

63,280

64,190

65,110

65,995

66,840

67,695

68,410

69,075

Jan

69,855

70,640

71,435

72,180

72,935

73,695

74,575

75,410

76,245

77,090

77,940

78,805

79,845

80,900

81,900

82,795

83,570

84,415

85,260

85,990

86,665

87,595

88,530

89,405

90,350

91,175

91,940

92,835

93,6]0

94,390

95,170

Feb.

95,825

96,620

97,215

98,005

99,145

99,950

100,825

101,575

102,320

103,075

103,765

104,455

105,080

105,845

106,615

107,385

108,020

108,660

109,300

109,940

110,730

111,375

112,170

112,890

113,770

114,425

115,155

115,890

-

_

-

Mar.

116,480

117,075

117,670

118,415

119,160

119,910

120,590

121,195

121,425

121,955

122,490

122,870

123,325

123,705

124,010

124,320

124,780

125,555

126,095

126,565

126,955

127,265

127,500

127,810

128,045

128,045

128,045

127,890

127,890

127,890

127,810

Apr.

127,810

127,735

127,735

127,810

127,655

127,265

127,110

127,421

127,500

127,655

127,735

127,575

127,575

127,421

127,421

127,421

127,575

127,890

128,045

128,045

127,965

127,890

127,575

127,030

126,175

125,710

125,400

125,555

125,475

125,400

-

May

125,400

126,095

126,640

126,565

126,565

126,720

126,720

126,720

126,720

126,795

127,110

127,421

127,890

127,890

128,435

128,750

128,910

129,615

128,830

129,460

129,850

130,405

130,880

131,275

131,515

131,435

132,310

133,590

134,395

134,880

135,045

June

135,205

134,880

135,530

135,855

135,770

135,530

136,015

136,825

136,825

136,665

136,420

136,095

135,935

135,855

135,610

135,285

135,530

135,530

135,610

135,450

135,365

135,205

134,960

135,045

135,365

135,285

135,045

134,800

134,800

134,640

July

134,475

134,475

134,235

134,235

134,235

134,235

134,075

134,075

134,075

133,990

134,315

134,235

134,235

134,235

134,075

133,910

133,750

133,750

133,750

133,430

133,270

132,550

131,750

131,115

130,325

129,460

128,675

128,045

127,500

127,185

126,485

Aug,

125,940

125,555

125,010

124,395

124,010

123,170

122,260

121,350

120,970

120,440

119,835

119,160

118,785

118,190

117,520

116,780

116,110

115,450

113,915

112,310

110,655

103,875

106,755

106,125

105,150

104,180

103,215

102,320

101,165

100,220

99,280

Sept,

98,405

97,475

96,555

95,500

94,585

93,480

92,710

91,620

90,985

90,540

89,785

88.965

B7,720

87,845

07,845

87,845

87,845

87,905

87,905

87,780

87,660

87,660

87,660

87,595

87,595

87,595

87,470

87,535

87,905

87,660

Monthly elevation and contents, water year October 1949 to September 1950

Date

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

Calendar year 1949..

Water year 1949-5O..

Elevation 

(feet)

6,293.08

-

-

Contents 

(acre-feet)

69,075

-

-

Change In contents 

during month 

(acre-feet)

+26,035

-3,320

+58,600
46 HENRYS FORK BASIN

Henrys Fork near Island Park, Idaho

Location.--Water-stage recorder, lat. 44°25', long. H10 24', in SWi sec. 28, T. 13 N., R. 

4ii 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 1950.

Average discharge. 17 years, 515 second-feet.

Extremes. Maximum discharge during year, 1,800 second-feet May 18 (gage height, 5.10 

reet); minimum daily, 6 second-feet Nov. 16-30.

1933-50: 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. 53 ) and Island .Park Reservolr (see preceding page).

Cooperation. Gage-height record and three discharge measurements furnished by Bureau of 

Keciamation.

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

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

J.8 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

557 

562 

562 

562 

567

567 

572 

572 

572 

572

572 

572 

576 

576 

576

576 

543 

509 

495 

490

490 

490 

490 

476 

472

472 

476 

476 

476 

476 

476

Nov.

476 

476 

476 

476 

476

476 

476 

472 

472 

472

472 

472 

472 

472 

161

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

Dec.

7 

7 

7 

7 

7

7 

7 

7 

7 

7

7 

7 

7 

8 

8

8 

8 

8 

8 

8

8 

8 

8 

8 

8

8 

8 

9 

9 

9 

9

Jan.

9 

9 

9 

9 

9

9 

9 

9 

9 

9

9 

9 

9 

9 

9

9 

9 

9 

9 

9

9 

10 

10 

10 

10

10 

10 

10 

10 

10 

10

Feb.

10 

10 

10 

10 

10

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

13 

13 

13

13 

13 

13 

13 

13

13 

13 

13

Month

Octo 

Hove 

Dece

Ca

janu 

Pebr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194i 

ary

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

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

Mar.

14 

14 

14 

14 

14

14 

14 

142 

269 

206

206 

206 

206 

206 

206

206 

206 

206 

206 

206

206 

206 

206 

286 

351

364 

364 

351 

346 

342 

338

Apr.

334 

338 

338 

338 

342

346 

342 

364 

373 

378

382 

396 

404 

414 

418

422 

440 

454 

504 

601

708 

895 

945 

945 

811

753 

689 

655 

655 

557

Secondfoot-days

16,420 

6,887 

239

213,923

289 

325 

6,135 

15,541 

23,485 

24,787 

21,422 

31,869 

21 , 643

169,042

May

324 

225 

504 

504 

504

504 

504 

504 

504 

504

504 

591 

885 

1,110 

1,300

1,460 

1,580 

1,620 

1,060 

738

743 

797 

846 

865 

890

538 

454 

601 

708 

777 

797

Maximum

576 

476 

9

1,930

10 

13 

364 

945 

1,620 

1,000 

910 

1,430 

1,070

1,620

June

8O6 

767 

836 

836 

836

836 

885 

1,000 

997 

971

930 

890 

870 

860 

846

811 

816 

821 

821 

811

787 

797 

733 

777 

797

777 

748 

723 

708 

694

July

684 

684 

655 

630 

625

625 

635 

620 

610 

606

645 

615 

606 

586 

572

548 

528 

528 

543 

528

753 

851 

836 

836 

846

860 

841 

841 

870 

910 

905

Minimum

472 

6 

7

6

9 

10 

14 

334 

225 

634 

528 

699 

418

6

Aug.

915 

920 

925 

935 

950

966 

966 

836 

699 

851

856 

860 

865 

870 

875

860 

880 

1,080 

1,430 

1,430

1,430 

1,370 

1,240 

1,180 

1,080

1,080 

1,060 

1,060 

1,080 

1,080 

1,080

Mean

530 

230 

7.7

586

9.3 

11.6 

198 

518 

758 

826 

691 

1,028 

721

463

Sept.

1,070 

1,070 

1,070 

1,070 

1,060

1,060 

1,060 

1,060 

1,050 

1,050

1,050 

1,050 

705 

528 

519

514 

519 

519 

519 

519

504 

495 

490 

476 

463

463 

436 

418 

418 

418

Runoff In 

p acre-feet

32,570 

13,660 

474

424,300

573 

645 

12,170 

30,820 

46,560 

49,160 

42,490 

63,210 

42,930

335,300

Note. Discharge Nov. 16 to Map. 16 computed from staff-gage readings.
HENRYS FORK BASIN 4' 

Henrys Fork at Warm River, Idaho

Location.--Water-stage recorder, lat. 44°07', long. 1110 20 I , in sec. 12, T. 9 N., R. 43 E. 

1,000 feet upstream from Warm River and half a mile northwest of Warm River 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 1950.

Average discharge. 36 years, 988 second-feet.

Extremes. Maximum discharge during year, 2,510 second-feet May 18 (gage height, 6.90 

reet); minimum, 21? second-feet Dec. 11, 12 (gage height, 3.12 feet).

1910-15, 1918-50: Maximum discharge, 3,540 second-feet May 18, 1927; maximum gage 

height, 7.80 feet Apr. 27, 1946; minimum discharge, that of Dec. 11, 12, 1949.

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

Flow regulated by Henrys Lake (see p. 53 ) and Island Park Reservoir (see p. 45 ). 

Some water diverted above station for irrigation of meadows on headwaters.

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

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

981 

969 

957 

a960 

963

969 

963 

957 

951 

981

969 

969 

963 

957 

951

951 

963 

957 

903 

885

891 

885 

885 

891 

879

879 

879 

873 

891 

873 

867

Nov.

867 

867 

867 

867 

867

867 

867 

885 

927 

963

903 

885 

879 

873 

849

466 

434 

434 

430 

430

422 

426 

439 

434 

434

434

434 

456 

456 

443

Dec.

422 

426 

384 

353 

417

404

392 

452 

426 

409

297 

439 

456 

439 

404

430 

409 

413 

417 

404

396 

422 

434 

434 

413

396 

422 

4,34 

417 

417 

422

Jan.

417 

426 

396 

372 

400

417 

439 

 456 

461 

448

 430 

413 

413 

380 

392

439 

470 

456 

443 

439

443 

448 

443 

448 

364

384 

461 

452 

426 

426 

426

Feb.

413 

413 

409 

439 

493

488 

448 

426 

417 

413

417 

426 

413 

422 

422

430 

443 

430 

413 

439

400 

434 

422 

426 

434

443 

456 

426

Month

00 to 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mnv

June 

July 

Augu 

Sept

Wa

mber. ...........----- - . . - - ...........

lendar year 194S

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

Mar.

404 

426 

430 

422 

443

456 

400 

434 

663 

602

520 

582 

597 

602 

592

577 

627 

622 

6O2 

592

577 

582 

587 

602 

761

831 

825 

819 

789 

795 

795

Apr.

801 

813 

807 

801 

801

807 

825 

861 

849 

837

837 

843 

867 

891 

885

915 

957 

975 

999 

1,140

1,3OO 

1,560 

1,720 

1,620 

1,560

1,410 

1,460 

1,320 

1,230 

1,200

Secondfoot-days

28,812 

19,805 

12,8OO

376,628

13,228 

12,055 

18,556 

31,891 

46,735 

42,870 

35,952 

43,56O 

34,205

340,469

May

1,090 

690 

945 

1,040 

1,O7O

1,110 

1,O70 

1,100 

1,150 

1,190

1,250 

1,460 

1,700 

2,080 

2,220

2,350 

2,430 

2,460 

2,160 

1,500

1,470 

1,480 

1,6OO 

1,690 

1,610

1,600 

al,150 

al,450 

al,550 

al,540 

al,530

Maximum

981 

963 

456

2,260

470 

493 

831 

1,720 

2,460 

1,700 

1,37O 

1,760 

1,470

2,460

June

al,500 

al,500 

al,500 

al.500 

al,500

al,510 

al,570 

al,700 

.al,650 

al,620

al,570 

al,530 

al,500 

al,470 

al,450

al,420 

al,400 

al,390 

al,370 

al,360

al,350 

1,310 

1,280 

1,330 

1,380

1,330 

1,270 

1,240 

1,200 

1,170

July

1,160 

1,160 

1,150 

1,100 

1,O9O

1,O90 

1,090 

1,090 

1,070 

1,070

1,130 

1,120 

1,100 

1,080 

1,060

1,050 

1,020 

1,000 

999 

993

1,O70 

1,320 

1,320 

1,320 

1,310

1,320 

1,340 

1,290 

1,310 

1,370 

1,360

Minimum

867 

422 

297

297

364 

400 

400 

801 

690 

1,170 

993 

1,060 

850

297

Aug.

1,360 

1,360 

1,360 

1,380 

1,400

1,380 

1,390 

1,400 

1,O60 

1,240

1,260 

1,270 

1,270 

1,260 

1,260

1,260 

1,260 

1,260 

1,710 

1,750

1,760 

1,760 

1,600 

1,580 

1,450

1,420 

1,420 

1,420 

1,420 

1,420 

1,420

Mean

929 

660 

413

1,032

427 

431 

599 

1,063 

1,508 

1,429 

1.16O 

1,405 

1,140

933

Sept.

1,410 

1,410 

1,420 

1,410 

1,410

1,400 

1,410 

1,430 

1,470 

1,470

1,420 

1,420 

1,350 

987 

951

957 

a955 

a953 

951 

957

945 

927 

921 

921 

903

909 

903 

855 

a850 

a930

Runoff in 

acre-feet

57,150 

39,280 

25,390

747,000

26,240 

23,910 

36,810 

63,260 

92,700 

85,030 

71,310 

86,400 

67,840

675,300

a No gage-height record) discharge computed on basis of records for stations near Island Park and 

near Ashton.
48 HENRYS FORK BASIN

Henrys Fork near Ashton, Idaho

Location. Water-stage recorder, lat. 44°05', long. 111°30 I , in sec. 28, T. 9 N., R. 42 

E7, a quarter 01' a mile downstream from power plant and 3 miles west of Aahton. Altitude of gage, 5,095 feet (from river profile map).

Drainage area. 1,030 square milea.

Records available. August 1902 to June 1909, April 1920 to September 1950.

Average discharge. 31 years (1903-8, 1924-50), 1,296 aecond-feet.

Extremes. Maximum discharge during year, 3,630 second-feet May 16 (gage height, 7.37 feet); 

minimum, 405 second-feet Mar. 12 (gape height, 5.35 feet); minimum daily, 453 aecondfeet Jan. 26.

1902-9, 1920-50: Maximum discharge, 6,220 second-feet May 7, 1925; minimum 65 secondfeet Dec. 5, 1931.

Remarks.--Records excellent. Flow regulated by power plant above station and by Henrys 

Lake (see p. 53 ) and Island Park Reservoir (see p. 45 ). Some water diverted above 

station for irrigation of meadowr on headwaters.

Cooperation. Gage-height record during nonirrigation season furnished by Utah Power & Light 

CTcT

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

1,380 

1,330 

1,300 

1,320 

1,340

1,360 

1,330 

1,360 

1,360 

1,400

1,380 

1,380 

1,360 

1,340 

1,380

1,340 

1,360 

1,450 

1,300 

1,280

1,300 

1,270 

1,270 

1,270 

1,260

1,210 

1,280 

1,230 

1,270 

1,210 

1,210

Nov.

1,230 

1,210 

1,200 

1,220 

1,200

1,210 

1,210 

1,240 

1,300 

1,420

1,230 

1,240 

1,240 

1,230 

1,210

814

637 

760 

710 

709

719 

711 

749 

728 

728

739 

760 

758 

738 

758

Dec.

717 

698 

698 

623 

739

709 

709 

731 

732 

742

581 

716 

738 

718 

667

749 

707 

707 

718 

688

676 

672 

748 

749 

665

679 

707 

718 

707 

716 

696

Jan.

697 

748 

689 

614 

666

743 

720 

693 

761 

710

728 

716 

627 

663 

556

676 

710 

724 

690 

728

729 

792 

803

714 

627

453 

65? 

716 

686 

703 

688

Feb.

592

645 

580 

680 

728

776 

719 

698 

693

674

696 

665 

676 

646 

686

665 

707 

696 

665 

676

686 

665 

696 

696 

686

718 

749 

718

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949 

ax*y

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

Mar.

686 

707 

707 

707 

749

803 

696 

738 

892 

892

814 

770 

858 

904 

858

869 

964 

1,010 

916 

880

880 

880 

869 

880 

1,060

1,120 

1,120 

1,120 

1,060 

1,080 

1,090

Apr.

1,120 

1,190 

1,190 

1,170 

1,200

1,280 

1,320 

1,480 

1,380 

1,330

1,320 

1,380 

1,470 

1,520 

1,450

1,560 

1,680 

1,680 

1,600 

1,790

2,020 

2,320 

2,510 

2,260 

2,220

1,960 

2,160 

1,940 

1,790 

1,700

Secondfoot-days

40,830 

29,588 

21,820

542,551

21,422 

19,177 

27,579 

48,990 

69,880 

61,260 

47,370 

55,190 

45,310

488,416

May

1,600 

1,240 

1,380 

1,520 

1,550

1,650 

1,600 

1,600 

1,750 

1,700

1,900 

2,200 

2,470 

2,930 

3,100

3,280 

3,440 

3,470 

3,100 

2,180

2,100 

2,400 

2,680 

2,740 

2,510

2,400 

1,880 

2,380 

2,510 

2,360 

2,260

Maximum

1,450 

1,420 

749

3,420

803 

776 

1,120 

2,510 

3,470 

2,530 

1,720 

2,260 

2,040

3,470

June

2,260 

2,280 

2,120 

2,100 

2,120

2,140 

2,220 

2,530 

2,440 

2,340

2,260 

2,180 

2,100 

2,020 

2,060

1,980 

1,960 

1,960 

1,920

1,940

1,810 

1,880 

1,880 

1,940 

2,100

1,860 

1,750 

1,750 

1,680 

1,680

July

1,630 

1,660 

1,560 

1,530 

1,500

1,480 

1,480 

1,550 

1,470 

1,450

1,520 

1,470 

1,470 

1,400 

1,420

1,400 

1,360 

1,280 

1,340 

1,320

1,360 

1,680 

1,700 

1,660 

1,650

1,660 

1,660 

1,630 

1,660 

1,700 

1,720

Aug.

1,650 

1,680 

1,660 

1,700 

1,720

1,750 

1,700 

1,720 

1,360 

1,520

1,610 

1,630 

1,650 

1,630 

1,630

1,610 

1,610 

1,630 

2,100

2,240

2,220 

2,260 

2,060 

2,020 

1,860

1,830 

1,830 

1,810 

1,830 

1,830 

1,840

Minimum Mean

1,210 1,317 

637 986 

581 704

581 1,486

453 691 

580 685 

686 890 

1,120 1,633 

1,240 2,254 

1,680 2,042 

1,280 1,528 

1,360 1,780 

1,090 1,510

453 1,338

Sept.

1,810 

1,840 

1,840 

1,830 

1,830

1,840 

1,840 

1,880 

2,000 

2,040

1,880 

1,860 

1,790 

1,340 

1,320

1,330 

1,320 

1,300 

1,300 

1,270

1,240 

1,210 

1,260 

1,230 

1,200

1,160 

1,190 

1,100 

1,090 

1,170

Runoff In 

acre-feet

80,980 

58,690 

43,280

1,076,000

42,490 

38,040 

54,700 

97,170 

138,600 

121,500 

93,960 

109,500 

89,870

968,800
HENRYS FORK BASIN 49 

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

Between Ashton and St. Anthony gaging stations seven canals divert water from Henrys 

Pork for irrigation. Records available each irrigation season from 1919 to 1950. 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 1949 to September 195O

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Th

lendar year

s period.. ..............................

Mar. Apr.

Secondfoot-days

32,249 

30,516 

32,067 

31,600 

15,792

-

May

646 

694 

728 

743 

745

778 

766 

817 

854 

876

898 

940 

994 

1,110 

1,140

1,180 

1,220 

1,180 

1,150 

1,160

1,140 

1,160 

1,230 

1,240 

1,220

1.25C 

1,260 

1,340 

1,350 

1,220 

1,220

Maximum

1,350 

1,200 

1,220 

1,180 

994

-

June

1,200 

1,110 

1,110 

1,120 

1,140

1,160 

1,190 

732 

710 

829

807 

806 

918 

921 

1,020

1,090 

1,090 

1,150 

1,140 

1,160

1,120 

1,110 

1,110 

1,000 

900

853

900 

1,020 

1,040 

1,060

Minimum

July

,130 

,120 

,070 

,080 

,080

,060 

,000 

896 

876 

870

855 

832 

835 

849 

904

1,020 

1,050 

1,040 

1,060 

1,220

1,050 

1,060 

1,060 

1,060 

1,060

1,040 

1,210 

1,180 

1,140 

1,180 

1,180

646 

710 

832 

906 

256

-

Aug.

,180 

,180 

,070 

,070 

,160

,090 

,060 

,030 

,030 

,080

,100 

,090 

,090 

,020 

980

,020 

,020 

,040 

,030 

,000

991 

977 

943 

927 

908

906 

911 

908 

931 

926 

932

Mean

1,040 

1,017 

1,034 

1,019 

526

-

Sept.

994

975 

985 

987 

960

945 

946 

896 

874 

656

5^4 

532

531 

471 

413

327 

306 

300 

297 

288

269 

260 

259 

259 

258

256 

256 

256 

256 

256

Runoff In 

acre-feet

63 , 960 

60,530 

63,600 

62,680 

31,320

282,100
50 HENRYS PORK BASIN

Henrys Pork at St. Anthony, Idaho

Location.--Water-stage recorder, lat. 43°58', long. 111°41', in sec. 1, T. 7 N., R. 40 

E,, naif 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 1950 (irrigation seasons only).

Extremes. Maximum discharge recorded during year, 4,890 second-feet May 24 (gage height, 

b.bu feet); minimum daily recorded, 668 second-feet Aug. 10.

1919-50: 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. Plow regulated by 

power plant 17 miles above station and by Henrys Lake (see p. 53 ), Island Park Reservoir (see p. 45 ), and Grassy Lake (see p. 53 ).

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

Day

1 

Z

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

11 

15

16 

17 

18 

19 

20

21 

22 

23 

21

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Th

ber. ....................................

lendar year

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

e period. ...............................

Mar. Apr.

Second - 

t oot -days

86,100 

95,550 

49,825 

32,955 

46,190

-

May

f 1,660 

1,420 

1,280 

1,440 

1,420

1,520 

1,380 

1,410 

1,470 

1,400

1,600 

2,020 

2,560 

3,440 

3,970

4,220 

f4,570 

a4,750 

a3,800 

a3,100

a2,700 

f3,230 

4,040 

4,570 

3,630

3,140 

2,580 

3,460 

3,820 

3,250 

3,250

Maximum

4,750 

4,490 

3,010 

1,540 

1,980

-

June

3,300 

3,300 

2,900 

2,750 

2,900

3,090 

3,440 

4,490 

4,200 

3,650

3,390 

3,180 

3,010 

2,980 

3,140

3,180 

3,440 

3,280 

3,070 

2,940

2,790 

3,010 

3,210 

3,510 

3,850

3,070 

2,580 

2,420 

2,620 

2,860

July

3,010 

2,900 

2,600 

2,770 

2,600

2,520 

2,520 

2,500 

2,290 

2,190

2,150 

2,090 

1,840 

1,710 

1,580

1,350 

1,140 

985 

963 

870

692 

870 

890 

870 

900

830 

830 

785 

830 

880 

870

Minimum

1,280 

2,420 

£92 

668 

1,170

-

Aug.

803 

850 

840 

900 

930

974 

996 

1,010 

749 

668

794 

850 

900 

910 

941

890 

890 

890 

1,170 

1,440

1,500 

1,540 

1,400 

1,360 

1,260

1,240 

1,340 

1,290 

1,210 

1,210 

1,210

Mean

2,777 

3,185 

1,607 

1,063 

1,540

-

Sept.

1,170 

1,170 

1,200 

1,170 

1,190

1,220 

1,250 

1,280 

1,730 

1,980

1,900 

1,900 

1,900 

1,600 

1,600

1,650 

1,630 

1,680 

1,650 

1,650

1,600 

1,600 

1,540 

fl,490 

fl,570

1,540 

fl,550 

al,550 

al,580 

hi, 650

Runoff In 

acre-feet

170,800 

189,500 

98,830 

65,360 

91,620

616,100

a No gage-height record; discharge computed on basis of records for stations near Ashton and near 

Rexburg.

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

h Computed from staff-gage reading.
HENRYS FORK BASIN 51 

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

Between St. Anthony and Rexburg gaging stations four canals divert water from Henrys 

Fork for irrigation. Records available for part of each irrigation season from 1919 to 

1950. 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 1949 to September 1950

Day

1 

2

3

4 

5

6 

7 

6 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Kav

June 

July 

Augu 

Sept

Th

lendar year

* period. ...............................

Mar. Apr.

Secondfoot -days

28,591 

27,312 

25,051 

22,433 

11,502

-

May

677 

694 

706 

746 

759

770 

754 

775 

783 

784

816 

837 

845 

903 

902

939 

1,010 

954 

969 

983

995 

1,040 

1,090 

1,110 

1,120

1,120 

1,110 

1,130 

1,090 

1,080 

1,100

Maximum

1,120 

1,1-40 

929 

825 

699

-

June

1,100 

1,070 

1,000 

1,100 

1,120

1,140 

937 

775 

696 

693

799 

822 

883 

911 

906

958 

965 

949 

910 

930

879 

873 

857 

735 

876

902 

883 

873 

863 

907

July

905 

912 

921 

913 

929

891 

788 

725 

717 

709

702 

723 

767 

791 

785

790 

810 

830 

884 

867

668 

761 

760 

760 

853

819 

840 

850 

806 

788 

767

Minimum

677 

693 

688 

648 

242

-

Aug.

765 

755 

799 

825 

738

716 

715 

740 

776 

695

763 

808 

794 

731 

754

726 

721 

742 

728 

725

732 

684 

677 

663 

655

661 

684 

685 

665 

663 

648

Mean

922 

910 

808 

724 

383

-

Sept.

689 

699 

671 

671 

631

615 

579 

565 

542 

445

359 

252 

252 

250 

247

242 

297 

292 

266 

257

262 

268 

270 

271 

273

273 

266 

266 

266 

266

Runoff In 

acre-feet

56,710 

54,170 

49,690 

44,500 

22,810

227,900
52 HENRYS FORK BASIN

Henrys Pork near Rexburg, Idaho

Location.--Water-stage recorder, lat. 43°50', long. 111°54 I , in sec. 30, T. 6 N., H. 39 

E., just downstream from highway bridge, downstream from all tributaries, and 7 miles 

west of Rexburg. Altitude of gage, 4,807 feet (from river profile map).

Drainage area.--3,010 square miles.

Records available.--April 1909 to September 1950.

Average discharge.--42 years (1908-50), 1,925 second-feet.

Extremes. Maximum discharge during year, 6,570 second-feet June 9 (gage height, 9.14 feet); 

minimum, 760 second-feet July 2C (gage height, 3.27 feet).

1909-50: Maximum discharge, 9,490 second-feet June 29, 1927 (gage height, a.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 regulated by operation of power plant near Ashton and by Henrys Lake (see following page), 

Island Park Reservoir (see p. 45 ), and Grassy Lake (see following page). About 172,000 

acres irrigated upstream from station, the return flow from which in part escapes westward beneath the Snake River plains above gaging station.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

1,780 

1,780 

1,780 

1,780 

1,810

1,880 

1,950 

1,990 

2,020 

2,120

2,310 

2,310 

2,310 

2,290 

2,230

2,200 

2,170 

2,320 

2,450 

2,350

2,290 

2,250 

2,210 

2,200 

2,210

2,200 

2, EDO 

2,200 

2,160 

2,150 

2,110

Nov.

2,O8O 

2,080 

2,080 

a2,060 

2,040

2,040 

2,030 

a2,030 

a2,120 

a2,200

a2,300 

2,190 

a2,120 

2,080 

2,020

1,900 

1,550 

1,400 

1,540 

al,460

al,420 

al,400 

1,320 

1,380 

1,430

1,430 

1,470 

1,460 

1,520 

1,500

Dec.

al,430 

a, 1360 

1,320 

al,300 

al,290

*1,260 

1,350 

1,360 

1,430 

1,410

1,410 

1,220 

1,290 

1,330 

1,300

1,270 

1,330 

1,300 

1,300 

1,280

1,270 

1,270 

1,300 

1,330 

1,260

1,240 

1,260 

1,300 

1,320 

1,320 

1,320

Jan.

1,260 

1,200 

1,150 

1,100 

1,050

1,150 

1,300 

1,360 

1,370 

1,370

1,370 

*1,360 

1,320 

1,280 

1,200

1,150 

1,250 

1,350 

1,370 

1,400

1,420 

1,440 

1,540 

1,450 

1,300

1,200 

1,150 

1,300 

1,300 

1,250 

1,200

Feb.

1,150 

1,100 

1,100 

1,080 

1,300

1,600 

1,520 

1,500 

1,490 

1,490

1,490 

1,490 

1,490 

1,480 

*1,500

1,550 

1,550 

1,550 

1,500 

1,450

1,480 

1,500 

1,450 

1,500 

2,020

2,370 

2,920 

2,870

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

Lendar year 1949

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

Mar.

2,330 

*2,060 

1,900 

1,830 

1,950

2,310 

2,240 

1,870 

1,810 

1,900

1,790 

1,730 

1,710 

1,740 

1,750

1,720 

1,720 

2,200 

2,060 

1,950

1,790 

1,760 

1,710 

1,680 

1,680

1,780 

1,370 

1,850 

1,830 

1,780 

1,780

Apr.

1,830 

2,770 

3,450 

2,990 

2,430

2,270 

2,570 

2,870 

3,220 

2,990

2,580 

2,470 

2,590 

2,310 

2,740

2,660 

2,770 

2,910 

2,760 

2,590

2,670 

2,830 

3,140 

3,130 

2,840

2,600 

2,390 

2,480 

2,270 

2,030

Secondroot-days

66,010 

53,700 

40,730

759,291

39,910 

44,490 

58,080 

80,650 

89,910 

135,600 

68,693 

37,327 

61,770

776,870

May

1,880 

1,780 

1,380 

1,490 

1,420

1,460 

1,440 

1,360 

1,390 

1,430

1,410 

1,550 

1,840 

2,370 

3,120

3,690 

4,150 

4,600 

4,820 

4,060

2,720 

2,600 

3,410 

4,410 

5,100

4,470 

3,690 

3,350

4,260 

4,790 

4,470

Maximum

2,450 

2,300

1,430

7,580

1,540 

2,920 

2,330 

3,450 

5,100 

6,440 

3,890 

1,600 

2,720

6,440

June

4,320 

4,340 

4,360 

4,060 

3,740

3,740 

4,080 

5,340 

6,440 

6,370

5,820 

5,240 

4,710 

4,410 

4,340

4,330 

4,300 

4,500 

4,480 

4,200

3,840 

3,830 

4,000 

4,360

5,140

5,590 

4,880 

3,890 

3,430 

3,470

July

3,670 

3,890 

3,790 

3,650 

3,660

3,510 

3,580 

3,700 

3,830 

3,710

3,590 

3,390 

3,060 

2,690 

2,300

1,930 

1,640 

1,290 

1,110 

996

879 

781 

798 

314 

820

825 

861 

855 

904 

1,010 

1,160

Minimum

1,780 

1,320 

1,220

660

1,050 

1,080 

1,680 

1,830 

1,360 

3,470 

781 

837 

1,180

781

Aug.

1,110 

989 

963 

1,090 

1,260

1,340 

1,320 

1,240 

1,130 

855

837 

873 

1,000 

1,110 

1,120

1,100 

1,050 

1,010 

1,010 

1,330

1,500 

1,530 

1,600 

1,460 

1,460

1,330

1,330 

1/400 

1,340 

1,300 

1,290

Mean

2,129 

1,790 

1,314

2,080

1,287 

1,589 

1,874 

2,688 

2,900 

4,520 

2,216 

1,204 

2,059

2,128

Sept.

1,250 

1,180 

1,210 

1,240 

1,250

1,320 

1,400 

1,440 

1,650 

2,410

2,630 

2, 72'0 

2,720 

2,670 

2,520

2,480

2,480 

2,470 

2,430 

2,390

2,310 

2,290 

2,230 

2,230 

2,190

2,160 

2,100 

2,120 

2,100 

2,180

Runoff In 

acre-feet

130,900 

106,500 

80,790

1,506,000

79,160 

88,240 

115,200 

160,000 

178,300 

269,000 

136,300 

74,040 

122,500

1,541,000

* Winter discharge measurement made on this day.

a No gage-height reoordj discharge computed on basis of records for upstream

Note. Stage-discharge relation affected by Ice Dec. 14 to Feb. 24.
HENRYS FORK BASIN

Smaller Reservoirs In Henrys Fork Basin

(gage height, 15.2 observed, 51,604 acre-feet Oet

Maximum contents obsen during period 1923-50, 83,184 acre-feet Jun

minimum observed, 140 acre-fe Nov. 8, 1934 (gage height, 0.03 foot).

tion near St. Anthony. Gage read occasionally. Records given herein represent usable 

contents. 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 

Grassy Creek, approximately in sec. 7, T. 48 N., R. 116 W. (unsurveyed), half a mile upstream from mouth and 24 miles northwest of Moran, Wyo. Datum of gage is at mean s°a 

level (levels by Bureau of Reclamation). Drainage area, 12 square miles, including 

basin of Cascade Creek, from which water is diverted into Grassy Lake. Records available, October 1939 to September 1950. Maximum contents during year, 15,291 acre-feet 

June 18, 19 (elevation, 7,210.35 feet); minimum, 11,930 acre-feet Oct. 1 (elevation, 

7,199.10 feet). Maximum contents during period 1939-50, 15,446 acre-feet July 2, 1943 

(elevatinn, 7,210.85 feet); no contents Oct. 2-5, 1940.

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 

7,210.0 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. 

except for period October to April when occasional readings were made. Records given 

herein represent usable contents. Gage-height record and capacity table furnished by 

Bureau of Reclamation.

Monthly elevations or gage heights and contents, water year October 1949 to September 1950

Date

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

Calendar year 1949.....

Water year 1949-50.....

Henrys Lake

Gage 

height 

(feet)

1

-

-

-

-

Contents 

(acrefeet)

a52,OSO 

a52,800 

a56,000 

a58,500

-

a60,700 

aS3,070 

a65,800 

a68,700 

a73,000 

a79,500

a71,500 

a69,100

-

Change in 

contents 

during month 

(acre-feet)

+740 

+ 3,200 

+2,500

-1,300

+2,200 

+ 2,370 

+2,730 

+2,900 

+4,300 

+6-, 500 

-1,700 

-6,300 

-2,400

+17,040

Grassy Lake

Elevation 

(feet)

7,199.10

-

7,202.60

7,204.30 

7,206.90 

7,210.20 

7,210.00 

7,202.25 

7,199.95

-

Contents 

(acrefeet)

11,930 

a!2,040 

a!2,120 

a!2,700

-

12,941 

a!3,140 

a!3,360 

13,445 

14,225 

15,244 

15,182 

12,839 

12,172

-

Change in 

contents 

during month 

(acre-feet)

+110 

+80 

+580

+122

+241 

+199 

+220 

+85 

+ 780 

+ 1,019 

-62 

-2,343 

-667

+242

a No gage-height record} contents interpolated.
54 HENRYS FORK BASIN

Diversions from Fall River above gaging station near Squirrel, Idaho

Above Squirrel gaging station two canals divert water from Fall River for irrigation. 

Records available for part of each irrigation season from 1919 to 1950. 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Th

Jan. Feb.

ntber. ...........--------- ----------

lendar year 

ary

e period. ..................... .........

Mar. Apr.

Secondfoot -day a

150 

4,324 

8,O04 

7,693 

2,202

-

May

0

o 

o 

o 

o

o

0 

0

o

0

o

0 

0

o

0

0 

0 

0 

0

o 

o

0 

0 

0 

0

o

0 

30 

40 

40 

40

Maximum

40 

215 

274 

. 289 

220

-

June

50 

50 

50 

6O 

SO

80 

100 

10O 

100 

100

100 

120 

120 

120 

140

150 

170 

180 

180 

180

200 

200 

210 

210 

210

210 

210 

214 

215 

215

July

230 

230 

240 

260 

260

260 

26O 

260 

260 

260

262 

262 

262 

259 

259

253 

253 

250 

250 

270

271 

262 

259 

257 

254

265 

265 

265 

274 

265 

267

Minimum

0 

50 

23O

16 

4

-

Aug.

265 

278 

277 

281 

280

279 

278 

286 

285 

289

282 

285 

273 

267 

267

262 

249 

243 

247 

246

232 

235 

234 

237 

237

236 

16 

159 

234 

234 

220

Mean

4.8 

144 

258 

248 

73.4

-

Sept.

220 

220 

220 

220 

216

198 

191 

189 

152 

157

143 

4

4 

4

4

4

4 

4 

4 

4

4 

4 

4 

4 

4

4 

4 

4 

4

4

Runoff in 

acre-feet

298 

8,580 

15,880 

15,260 

4,370

44,390
HENRYS FORK BASIN 55

Fall River near Squirrel, Idaho

Location.--Water-stage recorder, lat. 44°04', long. 111°15 I , in NEir 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 1950. August 1902 to 

December moa at Wilson's sawmill, 3 miles upstream.

Average discharge.--37 years (1904-8, 1917-50), 748 second-feet.

Extremes.--Maximum discharge during year, 3,310 second-feet May 24 (gage height, 3.60 feet); 

minimum, 200 second-feet Dec. 21 (gage height, 0.59 foot).

1904-9, 1918-50: Maximum discharge observed, 6,440 second-feet Jane 27, 1927; minimum observed, 72 second-feet Feb. 9, 1930.

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

since October 1939 partly regulated by Grassy Lake (see p. 53). Two diversions above 

station for irrigation.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

632 

580 

558 

544 

544

558 

544 

537 

537 

572

544 

565 

588 

551 

537

537 

544 

632 

572 

572

558 

537 

537 

544 

544

544 

530 

523 

537 

516 

509

Nov.

509 

502 

50 2 

502 

495

488 

488 

516 

537 

558

530 

509 

509 

502 

502

495 

488 

488 

488 

482

476 

476 

488 

523 

530

516 

509 

565 

530 

»509

Dec.

488 

469 

456 

430 

456

450 

436 

450 

456 

456

436 

424 

419 

410 

410

420 

4Z5 

425 

425 

400

410 

420 

420 

410 

400

410 

420 

425 

425 

425 

430

Jan.

390 

350 

»324 

340 

380

430 

450 

450 

450 

450

450 

450 

450 

410 

350

400 

420 

440 

460 

480

500 

490 

470 

450 

420

420 

420 

400 

370 

340 

320

Feb.

320 

310 

300 

350 

400

430 

430 

*431 

430 

430

425 

425 

425 

430 

450

460 

450 

440 

430 

420

410 

400 

405 

405 

408

414 

424 

414

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

402 

402 

402 

408 

419

450 

419 

*419 

424

414

419 

408 

408 

408 

408

402 

443 

436 

419 

408

408 

414 

414 

414 

414

414 

414 

408 

402 

408 

408

Apr.

415 

420 

420 

415 

415

420 

436 

464 

458 

452

452 

469 

526 

580 

552

608 

690 

675 

645 

668

758 

887 

784 

716 

660

652 

698 

652 

601

573

Secondfoot -days

17,127 

15,212 

13,336

307,082

12,924 

11,466 

12.83O 

17,161 

45,453 

69,360 

43,002 

16,467 

17,650

291,988

May

580 

587 

552 

538 

552

566 

545 

566 

573 

566

645 

843 

1,110 

1,400 

1,670

1,940 

2,090 

1,900 

1,450 

1,250

1,530 

2,240 

2,760 

2,830 

2,200

2,070 

2,130 

2,780 

2,490 

2,180 

2,320

Maximum

632 

565 

488

3,590

500 

460 

450 

887 

2,830 

2,860 

2,930 

573 

690

2,930

June

2,310 

2,300 

1,940 

1,940 

2,160

2,430 

2,700 

2,650 

2,160 

1,850

1,730 

1,860 

1,950 

2,090 

2,210

2,430 

2,730 

2,590 

2,510 

2,420

2,620 

2,730 

2,860 

2,720 

2,620

1,990 

1,820 

2,020 

2,320 

2,700

July

2,930 

2,560 

2,540 

2,640 

2,340

2,270 

2,100 

2,030 

1,890 

1,890

1,700 

1,550 

1,420 

1,420 

1,330

1,200 

1,060 

1,060 

386 

836

800 

741 

675 

660 

638

622 

608 

622 

622 

608 

594

Minimum

509

476 

400

380

320 

300 

402 

415 

538 

1,730 

594 

480 

464

300

Aug.

566 

552 

545 

566 

566

545 

532 

519 

512 

545

552 

566 

573 

559 

538

532 

526 

526 

526 

526

526 

519 

506 

500 

500

500 

580 

512 

480 

486 

486

Mean

552 

507 

430

841

417 

410 

414 

572 

1,466 

2,312 

1,387 

531 

588

800

Sept.

493 

493 

486 

493 

500

48$ 

464 

480 

552 

594

532 

594 

645 

682 

690

675 

652 

660 

645 

638

622 

622 

622 

615 

608

608 

601 

594 

622 

682

Runoff In 

acre-feet

33,970 

30,170 

26,450

609,100

25,630 

22,740 

25,450 

34,040 

90,150 

137,600 

85,290 

32,660 

35,010

579,200

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 14 to Feb. 24.
HEMRYS PORK BASIN 

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

Discnarge, in second-feet, May to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

May

160

157

158

168

184

177

179

202

183

186

188

212

287

299

316

June

603

595

579

610

641

6S5

664

483

418

379

378

481

491

567

581

July

822

807

799

803

802

797

747

746

733

722

714

714

693

694

721

Aug.

558

560

553

565

567

559

553

551

546

545

555

549

542

532

528

Month

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

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

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

Augus t ....................

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

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

Sept.

386

380

385

381

382

382

379

370

379

357

316

296

294

279

260

Secondfoot-days

8,722

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

May

332

342

352

335

331

347

371

388

464

459

498

531

563

583

565

589

Maximum

386

-

June

598

641

695

736

791

844

829

853

840

828

586

758

740

764

796

-

July

700

701

699

703

501

764

791

791

796

708

S98

588

593

590

577

568

Minimum

224

-

Aug.

532

523

520

441

450

451

446

435

436

437

426

425

405

396

395

388

Mean

648

291

-

Sept.

250

227

224

227

229

230

235

235

235

235

235

235

233

233

233

-

Runoff in 

acre-feet

17,300

150,200

Fall River near Chester, Idaho

Location.--Water-stage recorder, lat. 44°01', long. 111°34', in sec. 13, T. 8 N., R. 41 

E., half a mile upstream from moutn and 2 miles north of Chester. Altitude of gage, 

5,060 feet (from river profile map).

Drainage area.--560 square miles.

Records available.--Apr11 1920 to September 1950 (Irrigation seasons only).

Extremes.--Maximum discharge during period May tc September, 3,360 second-feet May 24 

(gage height, 4.97 feet); minimum, 68 second-feet July 26 (gage height, 1.3^ feet).

1920-50: Maximum discharge recorded, 6,3?0 second-feet June 27, 1927 (gage height, 

G.60 feet); minimum recorded, 9 second-feet Aug. 7, 1923 (gage height. 1.01 feet).

Remarks.--Records excellent. Flow since October 1939 partly regulated by Grassy Lake 

(see p. 53 ). Station is below all diversions for irrigation from Fall River.

Discharge, in second-feet, May to September 1950

Day

1

Z

S

4

s

6

7

8

9

10

11

12

13

14

15

May

706

674

682

70b

S82

674

698

682

650

567

615

837

1,140

1,560

1,790

June

2,120

2 , 100

1,750

1,66O

1,840

2,100

2,410

2,770

2,300

1,940

1,750

1,760

1,800

1,910

2,050

July

2,350

2,090

1,980

2,090

1,860

1,750

1,630

1,570

1,410

1,390

1,230

1,140

963

945

828

Aug.

3 Q

20

24

33

20

112

104

100

107

124

152

175

149

147

Month

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

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

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

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

Sept.

257

257

249

261

257

261

218

221

337

432

200

410

444

488

522

Secondfoot-days

12,133

-

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

May

2,030

2,270

2,090

1,520

1,190

1,290

1,980

2,670

2,930

2,160

1,870

1,900

2,520

2,520

2,020

2,130

Maximum

522

-

June

2.200

2,500

2,340

2 , 200

2 , 050

2 , 100

2,230

2 , 350

2,460

2,530

1,870

1,480

1,520

1,840

2,170

-

Mini mum

218

-

July

698

560

554

493

395

237

138

98

85

77

98

149

155

178

181

165

Aug.

149

149

149

181

221

233

221

225

C21

225

2C1

342

310

274

278

Mean

404

-

265

Sept.

515

515

504

482

471

466

460

460

454

454

454

460

454

460

510

-

Runoff in 

acre-feet

24,070

303,700
HENRYS FORK BASIN 57 

Teton River near Victor, Idahii

Location.--Water-stage recorder, lat. 43°33 I 50", long. 111°04 I 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 3j miles southeast of Victor. Altitude of gage, 6,450 feet 

(from topographic map).

Drainage area.--47.6 square miles.

Records available.--May 1946 to September 1950.

Extremes.--Maximum discharge during year, 361 second-feet June 17, July 1; maximum gage 

height, 3.41 feet July 1; minimum discharge recorded 29 second-feet sometime during 

period Feb. 19 to Mar. 1, but may have been less during period of ice effect; minimum 

gage height, 1.43 feet Apr. 5.

1946-50: Maximum discharge observed, 398 second-feet June 8, 1948 (gage height, 

a.03 feet, datum then in use); minimum recorded, 22 second-feet Feb. 20, 1947 (gage 

height, -0.15 foot, datum then in use), but may have been less during periods of ice 

effect or no gage-height record.

Remarks.--Records fair. No regulation or diversion above station.

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

51

49

49

49

51

49

49

49

49

49

48

49

48

48

48

47

51

52

49

48

47

47

47

47

47

47

47

46

48

46

45

Nov.

46

46

46

46

*44

44

44

44

45

45

44

43

43

43

43

43

43

42

42

42

42

42

42

44

43

42

43

44

42

42

-

Dec

41

41

40

b39

41

41

t40

41

40

40

b40

b40

b4O

b39

b41

b41

*41

4O

40

b39

b40

b38

b40

40

b40

b38

b39

39

39

39

38

Jan.

38

38

b38

b38

b38

37

37

37

38

36

3b

36

36

37

36

37

37

37

37

37

38

38

3P

35

35

35

36

36

36

36

3b

Month

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

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

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

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

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

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

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

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

Hay air ...........................

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

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

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

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

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

Feb

35

35

34

34

34

33

32

32

32

32

32

32

32

32

33

33

*33

33

> 33

_

_

-

Secondfoot-days

1,496

1,304 

1 235

28,539

1,138

923

1,023

1 , 268

3,298

8,469

6 , 379

2,498

1,786

30,817

Mar

33

b33

32

32

33

33

b33

33

33

33

34

33

b33

33

33

33

34

33

33

33

33

33

33

33

33

33

33

33

b33

33

33

Maximum

52

46

41

320

38

35

34

60

226

346

343

106

67

346

Apr.

33

33

33

33

*33

34

36

36

36

35

34

36

39

40

40

44

47

46

45

48

55

60

56

52

50

49

48

47

45

45

-

May

45

45

44

44

44

43

43

44

42

43

45

49

57

67

81

100

117

128

112

1OO

101

124

164

2OO

176

180

196

226

207

207

224

Minimum

45

42

58

28

35

32

33

42

205

112

66

55

.

June

231

231

2O9

205

231

274

315

272

231

220

222

248

260

287

307

330

346

310

304

304

307

333

328

322

292

277

290

307

330

346

-

Mean

48 . 3

43.5

39.8

78.2

36.7

33.0

33.0

42.3

106

282

206

80.6

59.5

84.4

July

343

343

341

328

325

304

287

270

252

252

243

224

208

195

191

ISO

172

166

162

158

152

144

141

137

133

129

126

126

120

115

112

Per

square 

mile

1.01

.914

1.64

.771

.693

.693

.889

2.23

5.92

4.33

1.69

1.25

1.77

Aug.

106

1O3

101

100

98

95

92

89

86

84

86

84

83

80

78

76

76

76

75

74

73

71

71

71

70

69

67

66

66

66

66

Sept.

64

63

63

62

62

61

61

62

67

67

62

60

60

60

61

60

60

59

57

57

56

56

56

56

55

55

55

55

58

56

-

Runoff

Inches Acre-feet

1.17 2,970

1.02 2.59O

.96 2,450

22.29 56,620

.89 2,260

.72 1,830

.80 2,030

.99 2,520

2.58 6,540

6.62 16,800

4.98 12,650

1.95 4,950

1.40 3,540

24.08 61,130

Peak discharge (base, 20O sec.-ft.). Ji 

ft.; July 1 (9 to 10p.m.) 361 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Jan. 6 to Feb. 16, Fet. 

weather records, recorded range in stage, and records f> 

near Tetonia, and Teton Creek near Drlggs.

(1 p.m.) 322 sec.-ft.; June 17 (5 to 7 a.m.) 361 aeo.-

to Mar. I; discharge computed on basis of 

Fall River near Squirrel, Teton River

253646 O - 53 - 5
58 HENRYS FORK BASIN

Teton River near Tetonia, Idaho

Location^ Water-stage recorder, lat. 43°51', long. 111°15', In see. 15, T. 6 N., R. 44 

E., if miles downstream from highway bridge, 4 miles downstream from Packsaddle 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 1950. Additional

records collected by Water District 36, State of Idaho, October and November 1932, July

to September 1936, July to September 1937.

Average discharge.--11 years (1930-32, 1941-50), 395 second-feet.

Extremes. Maximum discharge during year, 1,440 second-feet July 8 (gage height, 2.53 feet); 

minimum dally, 100 second-feet Jan. 3.

1929-32, 1934-35, 1940-50: 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 Dec. 10 to Apr. 11, which are fair. Many diversions 

from tributaries above station for irrigation.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

359 

344 

329 

319 

319

334 

334 

334 

334 

344

359 

349 

334 

319 

310

305 

314 

478 

466 

437

408 

397 

408 

386 

364

344 

329 

319 

314 

296 

296

Nov.

288 

288 

283 

283 

283

283 

279 

288 

*359 

448

454 

375 

349 

339 

319

310 

301 

296 

292 

288

279 

279 

288 

370 

364

329 

319 

310 

296 

292

Dec.

296 

279 

260 

240 

250

245 

245 

260 

*246 

240

230 

220 

210 

200 

200

210 

210 

210 

205 

195

195 

210 

210 

2OO 

190

200 

210 

220 

220 

220 

220

Jan.

185 

140 

100 

110 

140

170 

200 

200 

200 

200

195

190 

180 

170 

170

180 

190 

200 

*207 

230

250 

260 

260 

26O 

255

250 

260 

230 

190 

155 

130

Feb.

130 

130 

165 

190 

220

240 

250 

250 

250 

250

250 

250 

260 

275 

280

270 

250 

240 

240 

*257

250 

235 

260 

400 

600

550 

450 

400

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

360 

330 

310 

430 

480

420 

380 

340 

300 

270

250

235 

230 

230 

230

260 

360 

397 

340 

300

280 

270 

260 

256 

254

240 

220 

205 

210 

*215 

225

Apr.

535 

1,100 

600 

425 

375

450 

670 

857 

650 

510

425 

431 

431 

419 

397

364 

349 

339 

329 

314

314 

329 

329 

319 

319

305 

305 

301 

296 

296

Secondfoot -days

10,882 

9,531 

6,946

156,994

6,057 

7,792 

9,087 

13,073 

13,875 

25,966 

29,210 

16,500 

13,387

162,306

May

296 

305 

301 

296 

292

301 

296 

296 

339 

324

310 

305 

324 

375 

408

437 

454 

516 

510 

466

425 

425 

478 

622 

708

629 

615 

693 

815 

678 

636

Maximum

478 

454 

296

1,490

260 

600 

480 

1,100 

815 

1,240 

1,420 

643 

615

1,420

June

693 

700 

657 

503 

516

657 

864 

1,200 

1,240 

913

657 

588 

608 

608 

643

723 

897 

1,020 

963 

930

980 

1,040 

1,070 

1,160 

1,160

997

888 

921 

1,030 

1,140

Minimum

July

1,200 

1,210 

1,220 

1,210 

1,190

1,230 

1,250 

1,420 

1,350 

1,220

1,220 

1,250 

1,160 

1,030 

972

905 

831 

769 

723 

686

678 

657 

664 

657 

650

643 

629 

643 

650 

650 

643

296 

279 

190

190

100 

130 

205 

296 

292 

503 

629 

431 

392

100

Aug.

643 

629 

615 

615 

615

595 

588 

581 

561 

548

554 

588 

595 

581 

561

535 

516 

510 

503 

503

497 

484

478 

472 

466

460 

454 

448 

437 

437 

431

Mean

351 

318

224

430

195 

278 

293 

436 

448 

866 

942 

532 

446

445

Sept.

425 

419 

408 

402 

402

397 

392 

397 

478 

615

601 

528 

478 

454 

466

472 

460 

454 

443 

431

419 

425 

431 

431 

425

419 

408 

402 

408 

497

Runoff In 

acre-feet

21.580 

IP.jOO 

13,780

311,400

12,010 

15,460 

18,020 

25,930 

27,520 

51,500 

57,940 

32,730 

26,550

321,900

* Winter discharge measurement made on this day.

Note. Ho gage-height record Dec. lo to Apr. 11 (stage-discharge relation affected by Ice Dec. 3 to 

Feb. 28); discharge computed on basis of 5 discharge measurements, weekly readings of auxiliary staff 

gage 1-J miles above station, weather records, and records for station near St. Anthony.
HENRYS FORK BASIN 59

Teton River near St. Anthony, Idaho

Location. Water-stage recorder, lat. 43°56', long. 111 0 37', in sec. 15, T. 7 N., R. 41 

Ji. , naif a mile upstream from railroad bridge and 4 miles southeast of St. Anthony.

Drainage area. 920 square miles.

Records available . April 1903 to June 1909, April 1920 to September 1950.

Average discharge . 23 years (1903-8, 1921-22, 1933-50), 761 second-feet.

Extremes. Maximum discharge during year, 4,010 second-feet Apr. 2 (gage height, 6.66 

reet}; minimum, 197 second-feet Jan. 4.

1903-9, 1920-50: 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, which are fair. Plow 

arrected by diversions from streams in Teton River Basin, 20 miles upstream, and by 

flow diverted from Henrys Pork through Cross Cut Canal into Teton River (none diverted 

into river during 1950).

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

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

602 

597 

582 

568 

568

573 

578 

573 

573 

578

582 

573 

563 

539 

526

526 

530 

628 

706 

666

644 

623 

618 

618 

592

578 

563 

549 

539 

526 

516

Nov.

507 

507 

503 

498 

498

503 

494 

498 

549 

628

678 

608 

558 

544 

530

512 

498 

489 

480 

471

462 

462 

466 

507 

*573

535 

512 

512 

498 

480

Dec.

484 

466 

462 

417 

440

426 

422 

458 

440 

435

410 

400 

395 

380 

380

390 

400 

400 

400 

375

375 

380 

400 

390 

370

380 

390 

395 

400 

400 

4OO

Jan.

380 

340 

270 

*240 

280

320 

360 

380 

380 

380

380 

370 

365 

360 

350

350 

370 

420 

450 

460

470 

480 

475 

470 

450

430 

430 

450 

420 

360 

320

Feb.

3OO 

300 

300 

340 

400

430 

445 

445 

*445 

445

445 

440 

440 

450 

480

500 

490 

480 

426 

444

458 

422 

422 

484 

1,680

1,650 

1,220 

789

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Ha

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

lendar year 1949 

ary

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

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

Mar.

613 

*558 

535 

628 

1,010

983 

582 

554 

507 

476

448 

444 

426 

430 

435

417 

539 

639 

602 

539

503 

484 

476 

462 

458

458 

444 

426 

404 

422 

440

Apr.

1,380 

2,440 

1,190 

796 

683

776 

1,180 

1,370 

1,180 

888

750 

750 

756 

776 

655

634 

683 

700 

655 

623

650 

743 

769 

712 

700

700 

694 

689 

634 

602

Secondfoot-days

17,997 

15,560 

12,660

307,408

11,960 

15,570 

16,342 

25,758 

37,833 

66,430 

48,297 

24,640 

20,971

314,018

May

597 

592 

582 

554 

535

539 

530 

516 

544 

563

544 

549 

634 

844 

1,060

1,280 

1,430 

1,570 

1,480 

1,170

1,040 

1,310 

1,900 

2,420 

2,080

1,760 

1,830 

2,290 

2,730 

2,170 

2,190

Maximum

706 

678 

484

3,590

480 

1,680 

1,010 

2,440 

2,730 

2,950 

2,350 

998 

909

2,950

June

2,190 

2,210 

1,990 

1,730 

1,880

2,360 

2,810 

2,950 

2,660 

2,030

1,680 

1,790 

1,960 

1,960 

2,010

2,160 

2,460 

2,560 

2,390 

2,270

2,280 

2,430 

2,470 

2,470 

2,430

2,190 

1,930 

1,890 

2,040 

2,250

Minimum

July

2,350 

2,340 

2,300 

2,280 

2,160

2,160 

2,230 

2,300 

2,280 

1,990

1,910 

1,890 

1,760 

1,600 

1,490

1,400 

1,310 

1,250 

1,180 

1,130

1,090 

1,060 

1,040 

1,020 

1,010

983 

976 

961 

969 

946 

932

516 

462 

375

350

240 

300 

404 

602 

516 

1,680 

932 

672 

634

240

Aug.

909 

902 

983 

998 

924

866 

859 

837 

823 

803

796 

830 

866 

844 

816

789 

769 

762 

756 

750

743 

737 

725 

719 

712

700 

700 

689 

683 

678 

672

Mean

581 

519 

408

842

386 

556 

527 

859 

1,220 

2,214 

1,558 

795 

699

860

Sept.

666 

666 

655 

644 

634

634 

634 

634 

694 

852

909 

837 

769 

743 

725

737 

725 

725 

712 

694

683 

672 

683 

678 

672

655 

650 

639 

644 

7O6

Runoff In 

acre-feet

35,700 

30,860 

25,110

609,700

23,720 

30,880 

32,410 

51,090 

75,040 

131,800 

95,800 

48,870 

41,600

622,900

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 10 to Feb. 17.
60 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 1950. 

Discharge of canals computed from dally or beweekly staff-gage readings, or interpolated, 

and combined to show total diverted flow. Records good.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Deoe

Ca.

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Th

lendar year 

ary

e period ........ .......................

Mar. Apr.

Secondfoot -days

19,983 

31,923 

33,973 

26,414 

13,786

-

May

234 

228 

238 

248 

248

256 

264 

281 

320 

346

395 

410 

503 

585 

679

727 

812 

818 

811 

759

867 

843 

913 

975 

995

938 

1,030 

1,060 

1,080 

1,050 

1,070

Maximum

1,080

1,360 

1,330 

1,050 

711

-

June

1,070 

1,070 

1,070 

1,050 

1,070

1,100 

1,100 

1,010 

870 

849

803 

830 

851 

891 

908

1,020 

1,100 

1,190 

1,240 

1,250

1,250 

1,360 

1,350 

1,230 

1,000

922 

969 

1,020 

1,200 

1,280

July

1,270 

1,220 

1,200 

1,200 

1,330

1,330 

1,290 

1,240 

1,150 

1,100

1,080 

1,040 

1,000 

930 

953

1,040 

1,070 

1,140 

1,100 

1,010

1,020 

1,020 

1,040 

1,060 

1,010

1,030 

1,040 

1,020 

998 

992 

1,050

Minimum

228 

803 

930 

701 

321

-

Aug.

1,010 

969 

1,050 

1,050 

1,020

977 

970 

942 

942 

945

867 

914 

893 

897 

858

791 

775 

791 

811 

789

802 

760 

743 

744 

760

751 

732 

714 

713 

713 

701

Mean

645 

1,064 

1,096 

852 

460

-

Sept.

708 

711 

702 

692 

664

620 

571 

625 

602 

497

471 

458 

449 

438 

421

388 

380 

373 

362 

354

348 

340 

337 

336 

333

322 

321 

321 

321 

321

Runoff In 

acre-feet

39,640 

63,320 

67,380 

52,390 

27,340

250,100
HENRYS FORK BASIN

Teton Creek near Driggs, Idaho

Location.--Water-stage recorder, lat. 43°45'30", long. 110°58', ij 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. Altitude of gage, 6,660 feet (from topographic 

map).

Drainage area. 33.8 square miles.

Records available.--June 1946 to September 1950.

Extremes. --Maximum discharge during year, 992 second-feet June 29 (gage height, 4.11 feet); 

minimum recorded, 6.1 second-feet Feb. 12 (gage height, 0.02 foot), "but may have been 

less during period of no gage-height record.

1946-50: Maximum discharge, that of June 29, 1950; minimum recorded, 6.0 secondfeet Apr. 7, 1948, Mar. 30, 1949; minimum gage height recorded, -0.06 foot Apr. 7, 1948.

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

poor. No diversion or regulation above station.

Rating table, water year 1949-50, except periods of ice effect 

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

.4

5.5

8.3

12

23

1.2 

1.5 137

2.0 256

2.5 401

3.0 571

3.7 831

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

27

23

25

23

27

24

23

22

22

22

22

23

23

21

21

21

24

26

23

24

22

21

21

21

21

21

21

21

20

18

18

Nov.

18

17

17

16

*16

16

16

17

17

18

17

17

16

16

15

15

15

15

15

14

13

13

15

18

18

17

17

20

17

18

Dec.

16

16

14

11

15

14

12

14

14

14

12

12

12

11

12

*12

12

11

11

11

11

10

11

11

blO

10

9.1

10

9.9

9.9

9.5

Jan.

9.5

9.5

9.1

b9.0

b9.0

8.7

8.7

8.7

9.1

8.3

8.3

8.3

8.3

8.7

8.0

8.3

8.3

8.3

8.3

8.3

8.7

8.7

8.3

.5

.5

* .7

.7

.7

.7

.5

.5

Month

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Feb

b7.2

b7.2

b7.2

7.2

6.9

6.9

6.6

6.3

6.3

6.3

6.3

6.3

 6.5

_

_

-

Second 

foot-days

691

489

367.4

36,656.9

259.2

184.7

209.5

730.5

5,198

16,705

14,323

*944

42,560.3

Mar

> 6.5

(*)

» 7.0

Maximum

27

20

16

777

9.5

7.2

61

473

816

801

137

54

816

Apr.

. 7.0

7.5

8.0

9.0

10

14

20

20

24

35

34

33

36

46

61

55

47

42

39

37

35

32

30

-

May

28

27

26

24

23

22

23

23

23

22

23

31

45

82

137

183

215

233

165

122

124

220

382

430

320

334

414

473

355

311

358

Minimum

18

13

9.1

7.8

7.5

22

283

116

41

20

-

June

389

379

308

367

539

706

713

532

404

300

283

376

423

490

593

728

725

625

629

662

680

740

650

596

532

469

575

691

785

816

-

Mean

22.3

16.3

11.9

100

8.36

6.60

6.76

24.4

168

557

462

79 . 3

3l!s

117

July

793

793

801

766

801

751

759

647

614

625

647

564

504

463

423

411

376

361

346

343

311

289

280

272

248

235

225

208

193

158

116

Per 

square 

mile

0.660

.482

.352

2.96

.247

.195

.200

.722

4.97

16.5

13.7

2 35

.932

3.46

Aug.

126

137

135

133

137

118

106

100

94

90

86

78

76

72

74

72

70

66

65

64

62

60

58

55

52

50

47

47

45

43

41

Sept.

41

40

39

37

36

35

34

35

41

54

47

37

33

32

32

31

30

30

28

26

25

24

24

23

22

22

21

20

23

22

-

Runoff

Inches

0.76

.54

.40

40.34

.29

.20

.23

.80

5.72

18.38

15.76

2.71

1.04

46.83

Acre-feet

1,370

970

729

72,700

514

366

416

1,450

10,310

33,130

28,410

4,880

1,870

84,420

Peak discharge (base, 600 sec.-ft.). June 6 (8 p.m.) 831 sec.-ft.; June 16 (10p.m.) 882 sec.- 

ft.; June 22 (1O p.m.} 797 sec.-ft.; June 29 (11:30 p.m.) 992 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--No gage-height record Feb. 13 to Apr. 11, except staff-gage reading Mar. 19; discharge 

computed on basis of weather records and records for nearby streams.
62 HENRYS FORK BASIN

Horseshoe Creek near Driggs, Idaho

Location. Water-stage recorder, lat. 43°44', long. 11I 0 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 ?J miles west of Driggs. Altitude of gage, 6,200 feet (from 

topographic map).

Drainage area.--11.7 square miles.

Records available.--May 1946 to September 1950.

Extremes.--Maximum discharge daring year, 75 second-feet May 28; maximum gage height, 4.16 

feet May 23; minimum discharge, 1.3 second-feet Dec. 4; minimum gage height, 1.70 feet 

Mar. 29.

1946-50: Maximum discharge, 77 second-feet May 19, 1949; maximum gage height, that 

of May 23, 1950; minimum discharge, 0.7 second-foot Nov. 1C, 1946, but may have been 

less during winter period; minimum gage height observed, 0.96 foot Feb. 11, 1947.

Remarks.--Records poor. No diversion or regulation above station.

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

4.8

4.6

4.4

4.4

5.2

5.4

5.2

5.5

5.4

5.8

5.5

6.1

5.0

5.0

4.9

5.0

5.8

7.1

6.0

6.1

5.8

5.5

5.4

5.4

5.2

5.4

5.0

4.9

5.0

4.8

4.6

Nov.

.6

.4

.3

.2

.0

.2

.2

.6

.5

.6

.2

.2

.6

.8

.6

.4

.2

.3

.3

.0

.6

.2

.2

.4

.2

.0

.2

.8

.6

.3

-

Dec.

4.O

3.7

2.8

2.7

3.7

3.4

2.8

3.5

3.2

3.4

2.8

2.3

3.6

3.1

2.8

(*)

3.0

Jan.

3.0

(*)

Month

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

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

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

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

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

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

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

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

Uav way ...........................

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

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

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

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

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

Feb

1I "°

 3.5

_

_

-

Secondfoot-days

164.2

137.7

95 . 8

4,827.9

93.0

95.5

135.3

615.0

1,324

1,595

626

287.4

193.1

5,362.0

Mar.

4.0

5.0

*5.5

5.3

5.2

5.2

5.0

5.0

4.9

4.6

4.4

4.3

3.9

4.0

4.2

4.8

Maximum

7.1

6.6

4.0

73

5.5

37

68

61

31

13

8.6

68

Apr.

6.5

7.5

6.0

5.0

5.0

6.0

7.0

9.0

10

12

14

17

20

24

22

27

33

31

29

31

37

37

33

29

27

26

28

27

25

24

May

24

24

23

23

23

22

22

23

23

22

25

32

38

45

52

56

55

58

47

43

47

55

64

61

56

55

56

68

62

60

60

Minimum

4.4

5.2

2.3

2.2

5.0

22

32

14

6.1

5.5

2.3

June

58

59

54

53

54

57

59

58

57

58

58

57

56

57

57

59

61

60

58

55

54

52

51

53

49

45

41

38

35

32

-

Mean

5.30

4 59

3.09

13.2

3.00

3.41

4.36

20.5

42.7

53.2

20.2

9.27

6.44

14.7

July

31

30

29

27

27

26

27

25

24

24

23

22

21

20

19

19

18

18

17

17

16

16

16

15

15

14

14

14

14

14

14

Per 

square 

mile

0.453

392

.264

1.13

.256

.291

.373

1.75

3.b5

4.55

1.73

.792

.550

1.26

Aug.

13

1

1

1

?

2

2

12

12

1

1

1

1

3

9.9

11

1

1

1

3

3.7

3.3

3.8

3.8

3.8

3.5

7.8

3.1

7.8

7.4

7.3

7.4

7 .4

7.3

3.8

3.6

3.6

6.1

Sept.

6.1

6.1

6.1

6.1

6.1

6.1

6.0

6 .3

8.1

8.6

7.6

7.1

6.8

7.1

6.9

6.8

6.8

6.8

6.5

6.1

5.8

6.O

6.0

5.8

5.5

5.5

5.5

5.8

5.8

7.3

-

Runoff

Inches

0.52

.44

.30

15.34

.30

.30

.43

1.95

4.21

5.07

1.99

.91

.61

17 .03

Acre-feet

326

273

190

9,570

184

189

268

1,220

2,630

3,160

1,240

570

383

10,630

Peak discharge (bas

ay zy iiu a.m.) 75 sec. -It. 

* Winter discharge measurement made on this day. 

Note. --Stage -discharge relation affected by ice Dec.

ec. -ft. .--May 18 (2 a.m.) 69 sec. -ft.; May 23 (8 p.m.) 74

16 to Mar. 20, Apr. 1-13.
HENRYS FORK BASIN 63

Facksaddle Creek near Tetonia, Idaho

Location.--Water-stage recorder, lat. 43°45'30", long. 111°18 I 30", in sec. 18, T. 5 N., R.

44 E., 0.9 mile upstream from North Fork and 8| miles southwest of Tetonia. Altitude

of gage is about 6,600 feet (from topographic map). 

Drainage area.--5.7 square miles.

Records available.--June 1946 to October 1950 (discontinued). 

Extremes.--Maximum discharge during period October 1949 to October 1950, 47 second-feet

June 18 (gage height, 2.19 feet); minimum recorded, 0.5 second-foot Aug. 8 (gage height,

0.41 foot), but may have been less during periods of ice effect or no gage-height record. 

1946-50: Maximum discharge, 58 second-feet May 19, 1949 (gage height, 2.30 feet);

minimum, 0.1 second-foot Jan. 22, 1947, and sometime between Dec. 18, 1947, and Jan.

26, 1948. 

Remarks.--Records good 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, 1949-5O 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

0.9

.8

.7

.7

.9

.9

.8

.0

.0

' .1

.0

.1

.O

.9

.9

1.0

1.2

1.6

1.2

1.2

1.1

1.2

1.2

1.1

1.0

1.1

1.1

1.0

1.1

1.0

1.0

Nov.

1.0

.9

.9

.9

.9

.9

.9

1.0

1.0

1.1

1.0

1.0

.9

1.1

1.1

1.0

1.0

1.0

1.0

.9

.9

1.1

1.2

1.6

1.6

1.5

1.6

1.9

1.5

1.5

-

Dec.

1.4

1.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.O

.0

1.0

1.0

*1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.9

.9

.9

.9

Jan.

0.9

.9

*.9

.8

.7

.6

.6

Feb.

0.6

.6

.7

.8

0.9

_

_

-

Mar.

0.9

(*)

Apr.

0.9

1.0

1.3

1.6

2.0

2.3

2.5

3.0

4.0

4.0

4.0

4.0

5.5

7.0

6.5

6.0

5.5

5.0

4.7

4.5

4.2

4.0

May

3.7

3.5

3.2

3.0

2.7

2.5

2 . 5

2. ~5

2.5

2.5

4.0

7.0

flZ

14

20

21

20

20

14

13

17

24

32

28

24

24

26

38

31

31

32

June

32

33

29

28

30

36

39

36

33

31

31

32

34

35

36

38

40

39

38

37

36

35

36

37

32

29

27

26

25

24

July

23

22

21

19

18

Ib

16

14

13

12

11

10

9.3

8.6

8.2

7.7

7.0

7 .0

6.4

6.2

5.8

5.4

5.0

4.8

4.4

4.2

4.2

4.2

3.8

3.8

3.4

Aug.

3.4

3.2

3.2

3.2

2.9

3.2

2.9

1.9

2.2

2.2

2.5

2.4

2.2

2.1

1.9

1.8

1.6

1.6

1.6

1.6

1.5

1.4

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

Sept.

0.9

.9

.9

.8

.8

.8

1.0

1.2

3.2

2.5

1.4

1.1

1.0

1.1

1.1

1.0

1.1

1.1

1.0

.9

.9

1.0

1.2

1.0

.8

.7

.7

.8

1.1

2.4

peak discharge (base, 25 sec.-ft.).--May 15 (5 p.m.) 29 sec.-ft.; May 23 (5 p.m.) 42 sec.-ft.; 

May 28 (7 a.m.) 46 sec.-ft.; June 7 (1 p.m.) 41 sec.-ft.; June 18 (4:3Op.m. ) 47 sec.-ft.

* Winter discharge measurement made on this day.

f Computed from partly estimated gage-Height record.

Note. Stage-discharge relation affected by ice Dec. 4 to Jan. 25, about Feb. 10 to May 2. No 

gage-height record Feb. 2 to Mar. 17, May 3-12; discharge computed on basis of weather records and 

records for nearby streams.

1950

Day

Oct. 1

2

3

4

5

6

7

8

Discharge

1.9

1.6

1.5

1.4

1.2

1.4

1.2

1.1

Day

Oct. 9

10

11

12

13

14

15

16

Discharge

0.9

.9

.9

.9

.8

.8

1.2

1.0

Day

Oct. 17

18

19

20

21

22

23

24

Discharge

0.9

.9

.9

1-

Day

Oct. 25

26

27

28

29

30

il

Discharge

1

1

{ 0.9

1

J

Note. No gage-height record Oct. 20-31; discharge computed on basis of weather 

records and records for nearby streams.

Monthly discharge, in second-feet, 1949-50

Month

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

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

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

Secondfoot-days

31.8 

33.9

31.0

2,111.2

27.0 

24.3 

27.9 

90.7 

48O.6 

994 

304.4 

60.7 

34.4

2,140.7

Maximum

1.6 

1.9 

1.4

50

7.0 

38 

40 

23 

3.4 

3.2

40

Minimum

0.7 

.9 

.8

-

.6

2.5 

24 

3.4 

1.0 

.7

-

Mean

1.03 

1.13

1.00

5.78

.87 

.87 

.90 

3.02 

15.5 

33.1 

9.82 

1.96 

1.15-

5.86

Per 

square 

mile

0.181 

.198 

.175

1.01

.153 

.153 

.158 

.530 

2.72 

5.81 

1.72 

.344 

.202

1.03

Runoff

Inches

0.21 

.22 

.20

13.77

.18 

.16 

.18 

.59 

3.14 

6.49 

1.99 

.40 

.22

13.98

Acre- feet

63 

67 

61

4,190

54 

48 

55 

180 

953 

1,970 

604 

120 

68

4,240

October 1950
64 HENRYS FORK BASIN

Spring Creek near Tetonla, Idaho

Location --Water-stage recorder, lat. 43°50'30", long. Ill -07', In sec. 14, T 6 N R 45 

Prior to An* i0""^3"1 ^ S ?UrCe of creek at sprlnS and 3 "Hies northeast of 'Tetonla. 

datSm ' water-staSe recorder at site 100 feet upstream, at different

Records available . June 1946 to October 1950 (discontinued)

during period October 1949 to October 1950, 16 second-feet 

16?°K' (gage height, Til gSfd ^ ? SeCOnd-feet ' ***- 

1950 946 ~ 5° : Maxlmum discharge, that of Apr. 13, 1950; minimum, that of Mar. 16, 17,

Remarks. --Re cords fair. One diversion above station for Irrigation

. m^rr^f8 I

(Shifting-control 

, 

method 

»-

used Jan. 16 to Feb. 6, Feb 14 to Mar 5

Oct. 1, 1349, to Jan. 31, igso""' ^ *" ^ "' 7=°*° ^ *> ' ' '

Feb. 1, 1950, to Oct. 19, 1950

°1o n'? °' 3n 2 ' 3 °- 15 1-1 0-25 2 0 3 ° 1 ' 7 - 40 3.1 .20 1.5 .30 2.7

Discharge, in second-feet, 1949-50 

1949-50

0.4 4.4 0. 6 8.f

Day

1

2 

3

4

5

6

7

a

9

11

12 

13

14 

15

16

17iaiy

20

21

22

23

24

25

26

27 

28

29

31

Oct.

2 *-

2.9

2. 9 

2.9

2.9

2.9

3.9

2.9

2.9

2.9 

2.9

2.9 

2.9

2.9

3.1

3.1

2.9

2.9

2.9

?. 9

2.9

2 9

2.9

Nov.

2.7

2.7

2.7 

2.7

2.7

2.7

2.7

2.7

2.6

2.6 

2.4

2.4 

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.2

2.0

2.0

2.0

-

Dec.

1. 9

1.9

1.9 

1.9

1.9

1.9

1.9

1.9

1.8

1.7

1.6

1.7

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

Jan.

1.4

1.4

1.4

1.4

1.3

1.2

1.2

2.2

2.0

2.6

2.6

2.4

2.2

1.8

1.1

1.2

1.6

1.6

1.5

1.5

1.3

1.1

1.2

1.1

Feb.

l.C

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.2

1.4

1.4

-

-

Mar.

1.4

1.4

2.3

2.4

1.8

1.8

1.8

1.0

1.0

1.0

1.0

1.0

1.0

1.3

1.7

1.7

1.7

1.7

1.7

1.8

1.8

1.8

1.7

1.8

Apr.

l.E

1.9

1.9

2.0

3.2

4.7

4.1 

3 9

3.9

5.3

3.5

4.3

4.7

4.3

3.9

4.3

4.9

5.3

5.3

4.9

4.7

4.9

4.9

4.9

-

May

4.9

4.9

4.7

4.7

4.7

4.9

4.9

4.7

4.7

5.1

5.3

5.3

5.1

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

June

4.9

4.9

4.9

4.9

4.9

5.3

5.1

4.7

4.4

4.9

4.9

4.9

4.9

4.9

5.1

5.1

5.1

4.9

5.3

5.1

5.3

5.7

6.1

-

July

6.7

7.0

7.0

6.7

7.0

7.0

6.7

7.0

7.2

7.2

7.3

7.2

6.1

5.3

5.3

5.3

5.5

5.7

5.5

5.5

5.7

5.7

5.5

4.1

Aug.

3.9

3.7

3.5

3.7

3.5

3.5

5.5

5.7

5.5 

5.5

5.3

5.3

5.3

5.5

5.3

5.3

5.3

5.3

5.1

5.1

4.9

4.9

4.7

4.7

Sept.

4.9

4.9

4.9

4.4

4.4

4.1

4/1 

4.3

4.3 

4.3

4.4

4.4

4.4

4.4

4.3

4.3

4.1

4.1

4. 1

4.1

4.1

4.3

Note.--Discharge May 11-29 affected by inflow above gage from Leigh Creek. Discharge of Spring 

Creek computed on basis of one discharge measurement, records for adjacent periods, and records for 

nearby streams.

Date

Oct. 1

3

4

5

6

Discharge

4.3

3.9

3.7

3.7

3.7

3.7

Date

Oct. 7

8

9

10

11

12

Discharge

3.7

3.7

3.7

3.7

3.5

3.5

Date

Oct. 13

14

15

16

17

18

Discharge

3.7

3.7

3.7

3.7

3.7

3.9

Date

Oct. 19

20

21

22

23

24

Discharge

3.7

1"

Date

Oct. 25

26

27

28

29

30

31

Discharge

.

1

j

> 3.7

1

}

Note. No gage-height record Oct. 20-31; discharge computed on basis of weather records and

records for nearby streams.

Monthly discharge, in second-feet, 1949-50

Month

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

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

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

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

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

Secondfoot-days

71.9

51.2

1,186.5

48.6

29.6

47.4

120.5

152.3

152.5

194.7

147.2

132.0

1,238.2

Maximum

3.1

2.7

1.9

5.3

2.6

1.4

2.4

6.1

5.3

6.3

7.2

5.7

4.9

7.2

Minimum

.9

.9

.4

.4

.1

.0

.0

.8

 i .7

 i .7

.1

.5

.1

1.0

Mean

2.91

2.40

1.65

3.25

1.57

1.06

1.53

4.02

4.91

5.08

6.28

4.75

4.40

3.39

Runoff in 

acre-feet

179

143

102

2,350

96

59

94

239

302

302

386

292

262

2,460

October 1950.
BLACKPOOT RIVER BASIN 65

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 1950.

Extremes. Maximum discharge during year, 700 second-feet June 12 (gage height, 6.35 feet); 

minimum, 18 second-feet July 22 (gage height, 1.38 feet).

1913-50: Maximum discharge, 868 second-feet May 21, 1921; no flow for many days.

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

wnlch are poor. Flow regulated by Blackfoot Marsh Reservoir (capacity, 413,000 acrefeet). Many diversions above station for irrigation. Most of flow during nonirrigation 

season and part of that during irrigation season is supplied b.r waste from Snake River 

canals.

Cooperation. Gage-height record furnished by Office of Indian Affairs.

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

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

£4 

25

26 

27 

28 

29

30 

31

Oct.

66 

66 

71 

80 

86

a95 

alOO 

allO 

a!50 

a200

235 

269 

242 

229 

236

225 

193 

183 

a!78 

a!74

a!70 

a!70 

a!70 

a!60 

a!50

143 

139 

149 

149 

a!50 

alSO

Nov.

alSO 

a!50 

a!50 

alSO 

a!50

alSO 

a!50 

alSO 

a!70 

a200

a230 

a260 

a300 

a290 

a280

*274 

270 

263 

260 

a240

220 

231 

238 

242 

242

248 

256 

283 

a320 

344

Dec.

336 

330 

314 

278 

220

224 

227 

a250 

a230 

a200

a!70 

156 

134 

140 

140

135 

135 

135 

130 

130

130 

140 

145 

140 

120

110 

105 

*104 

102 

100 

102

Jan.

105 

100 

95 

90 

85

I 80

-

I 80 

I 100 

I 90

Feb.

80 

80 

82 

85 

90

*94 

110 

105 

105 

100

alOO 

alOO 

alOO 

alOO 

 alOO

alOO 

alOS 

alOS 

a!15 

alSO

a200 

a250 

315 

288 

144

157 

190 

*203

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 1949

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

Mar.

200 

184 

161 

179 

210

239 

225 

227 

210 

194

183 

152 

136 

150 

156

167 

176 

218 

246 

292

286 

249 

227 

208 

194

190 

180 

180

173 

167 

165

Apr.

160 

197 

382 

449 

307

207 

197 

250 

332 

364

400 

410 

433 

452 

496

545 

568 

576 

585 

592

593 

6OO 

604 

612 

602

570 

566 

577 

580 

582

Secondfoot-days

4,888 

6,861 

5,312

44,597

2,665 

3,753 

6,124 

13,788 

17,922 

12,191 

2,395 

3,345 

7,139

86,383

May

582 

566 

576 

582 

584

585 

579 

566 

560

576

574 

568 

525 

525 

548

553 

566 

579 

588 

598

597 

592 

582 

588 

593

597 

612 

612 

584 

588 

597

Maximum

269 

344 

336

574

315 

292 

612 

612 

695 

127 

183 

477

695

June

574 

532 

560 

590 

609

597 

590 

607 

640 

670

683 

695 

678 

560 

313

456 

161 

72 

124 

215

172 

188 

243 

249 

314

401 

290 

174 

127 

107

Minimum

July

100 

104 

103 

108 

97

127 

118 

107 

93 

95

93 

107 

112 

96 

88

108 

102 

64 

34

37

2e

22 

27 

39 

34

29 

31 

38 

51 

104 

101

66 

150 

100

9

80 

136 

160 

525 

72 

22 

44 

44

22

Aug.

160 

76 

59 

93 

152

180 

174 

152 

109 

84

92 

130 

183 

183 

180

153 

116 

106 

100 

106

113 

81 

69 

82 

61

49 

44 

55 

68 

66 

69

Mean

158 

229 

171

122

86.0 

134 

198 

460 

578 

406 

77.3 

108 

238

237

Sept.

76 

66 

54 

60 

51

44 

64 

62 

116 

213

 301 

462 

476 

477 

456

381 

280 

257 

257 

238

224 

222 

231 

273 

280

280 

290 

302 

332 

314

Runoff In 

acre-feet

9,700 

13,610 

10,540

88,460

5,290 

7,440 

12,150 

27,350 

35,550 

24,180 

4,750 

6,630 

14,160

171,400

Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for Snake 

River near Blackfoot.

Note.--Stage-discharge relation affected by Ice Dec. 14 to Feb. 10 (no gage-height record Jan. 2 

to Feb. 5); discharge computed on basis of 3 discharge measurements, available gage heights, weather 

records, and records for Snake River near Blackfoot.
66 PORTNEUF RIVER BASIN

Portneuf River at Topaz, Idaho

Location.--Staff gage, lat. 42°38', long. 112°06', In see. 23, T. 9 S., R. 37 E., at

 Oregon Short Line Railroad bridge, a quarter of a mile west of Topaz, H 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 1950. 

Average discharge.--31 years (1913-14, 1919-22, 1923-50), 194 second-feet.

Extremes.--Maximum discharge observed during year, 657 second-feet May 24; maximum gage 

height observed, 4.00 feet May 19; minimum discharge observed, 128 second-feet Oct. 1, 

2; minimum gage height observed, 1.14 feet Oct. 1, 2, Jan. 13-15.

1913-15, 1919-50: 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 or no gageheight record, which are fair. Gage read once 'daily. Flow regulated by Portneuf-Marsh 

Valley Canal Co.'s reservoir near Chesterfield. Many ranch diversions above station.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

128 

128 

132 

134 

138

142 

142 

147 

143 

143

143 

145 

149 

145 

142

147 

151 

155 

159 

164

180 

176 

176 

178 

174

182 

182 

184 

176 

172 

176

Nov.

170 

170 

166 

166 

164

162 

166 

166 

170 

166

166 

162 

166 

166 

166

166 

166 

166 

162 

162

159

159 

159 

155 

155

159 

162 

166 

170 

162

Dec.

162 

159 

155 

151 

151

147 

147 

151 

155 

155

155 

159 

162 

155 

155

:si

147 

155 

151 

147

151 

151 

151 

151 

147

151 

147 

151 

151 

155 

155

Jan.

151 

147 

147 

151 

147

151 

147 

147 

147 

147

147 

147 

143 

143 

143

147 

151 

151 

151 

151

155 

190 

251 

210 

178

178 

173 

174 

174 

170 

166

Feb.

162 

147 

147

155 

166

170 

174 

190

186 

166

162 

155 

159 

166 

174

162 

170 

174 

182 

190

182 

170 

162 

214 

271

44O 

414 

350

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Ma V

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

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

Mar.

294 

255 

267 

275 

342

357 

294 

267 

251 

235

231 

227 

223 

206 

202

218 

251 

382 

371 

332

294 

286 

243 

271 

267

263 

255 

243 

231 

206 

239

Apr.

275 

g364 

g409 

350 

332

313 

360 

382 

378 

371

350 

301 

320 

328 

313

357 

364 

393 

389 

382

427 

456 

450 

389 

386

382 

393 

389 

375 

357

Secondfoot-days

4,833 

4,920 

4,731

71,838

4,960 

5,560 

8,278 

11,035 

15,189 

12,456 

8,660 

7,707 

8,432

96,781

May

350 

346 

342 

342 

350

313 

332 

326 

330 

341

317 

328 

342 

411 

488

539 

582 

634 

647 

626

628 

625 

631 

657 

650

645 

639 

607 

607 

607 

607

Maximum

184 

170 

162

378

251 

440 

382 

456 

657 

573 

324 

267 

324

657

June

573 

566 

558 

556 

554

546 

534 

514 

496 

490

400 

386 

382 

378 

373

368 

364 

364 

360 

357

350 

346 

324 

339 

342

339 

335 

324 

320 

318

July

317 

298 

294 

286 

286

282 

294 

298 

305 

324

317 

309 

305 

305 

294

286 

282 

279 

267 

263

255 

247 

243 

251 

247

255 

255 

259 

255 

251 

251

Minimum

128 

155 

147

117

143 

147 

202 

275 

313 

318 

243 

239 

196

128

Aug.

255 

255 

251 

247 

247

243 

239 

239 

243 

243

247 

247 

247 

255 

255

251 

251 

247 

243 

247

247 

245 

245 

247 

245

267 

263 

255 

251 

247 

243

Mean

156 

164 

153

197

161 

199 

267 

368 

490 

415 

279 

249 

281

265

Sept.

239 

237 

206 

202 

202

198 

196 

286 

305 

298

305 

303 

305 

309 

305

305 

313 

317 

317 

318

320 

320 

324 

320 

317

317 

317 

a260 

a230 

241

Runoff in 

acre-feet

9,590 

9,760 

9,380

142,500

9,880 

11,030 

16,420 

21,890 

30,130 

24,710 

17,180 

15,290 

16,720

192,000

a Ho gsge-height record ; discharge computed on baala of records for station at Pocatello.
PORTNEUP RIVER BASIN b ' 

Portneuf River at Pocatello, Idaho

Location. Water-stage recorder, lat. 42°52', long. 112°28', in sec. 27, T. 63., R. 34 E., 

at nighway bridge at foot of Carson Street, in west end of Pocatello. Altitude of gage, 

4,430 feet (from topographic map).

Records available . August 1911 to September 1950. May 1897 to October 1899 at site 1 mile 

upstream.

Average discharge. 37 years (1912-16, 1917-50), 257 second-feet.

Extremes. Maximum discharge during year, 902 second-feet May 20 (gage height, 6.87 feet); 

minimum, 30 second-feet July 22 (gage height, 2.17 feet).

1897-99, 1911-50: Maximum discharge, more than 2,000 second-feet sometime during 

period May 13 to June 14, 1917; minimum, 5 second-feet July 31, 1942, from rating 

curve extended below 40 second-feet.

Remarks. Records good except those for about Apr. 10 to May 13, which are fair, and 

tnose 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

95 

97 

100 

97 

97

112 

129 

145 

189 

223

226 

248 

252 

241 

236

233 

223 

229 

255 

279

290 

286 

284 

281 

279

279 

277 

274 

267 

263 

265

Nov.

258 

250 

248 

246 

243

241 

243 

246 

260 

306

322 

315 

300 

291 

286

284 

281 

277 

275 

272

272 

268 

268 

279 

297

286 

284 

284 

290 

284

Dec.

281 

277 

275 

268 

268

275 

277 

279 

282 

286

282 

267 

274 

277 

272

277 

288 

290 

297 

293

267 

*281 

308 

293 

238

277 

299 

326 

326 

308 

311

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mnv

June 

July 

Augu 

Sept

Ha

Jan.

304 

309 

304 

248 

260

270 

270 

270 

280 

290

290 

290 

280 

280 

270

270 

280 

290 

300 

300

320 

400 

460 

491 

450

394 

369 

388 

344 

309 

331

Feb.

311 

265 

267 

333 

369

388 

*448 

506 

495 

485

408 

360 

339

331 

331

350 

394 

434 

456 

450

450 

428 

406 

410 

500

588 

689

711

lendar year 194S ......... ......

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

Mar.

689 

616 

573 

573 

612

671 

680 

616 

567 

529

508 

481 

458 

446 

444

442 

464 

560 

627 

642

627 

590 

567 

531 

548

571 

556 

542 

497 

481 

487

Apr.

510 

558 

636 

667 

658

631 

651 

708 

730 

730

708 

693 

708 

730 

728

728 

724 

735 

741 

739

741 

744 

735 

739 

730

717 

711 

713 

713 

704

Second - 

foot-days

6,751 

8,256 

8,819

92,001

9,911 

11,902 

17,195 

20,960 

23,720 

14,910 

5,920 

4,546 

6,930

139,820

May

693 

686 

686 

678 

669

658 

645 

629 

618 

649

645 

616 

629 

693 

769

812 

840 

861 

881 

895

893 

886 

881 

891 

884

881 

868 

852 

828 

808 

796

Maximum

290 

322 

326

682

491 

711 

689 

744 

895 

778 

279 

213 

313

895

June

778 

769 

764 

735

711

680 

671 

667 

678 

651

601 

556 

525 

485 

464

432

410 

396 

38O 

365

346 

324 

308 

313 

333

342 

333 

317 

299 

277

Minimum

July

257 

246 

226 

210 

199

194 

194 

204 

236 

248

279 

279 

253 

243 

253

245 

226 

207 

194 

158

140 

119 

108 

126 

123

126 

123 

127 

127 

125 

125

95 

241 

238

36

248 

265 

442 

510 

616 

277 

108 

113 

122

95

Aug.

115 

116 

123 

125 

123

113

127 

127 

119

115

120 

129 

142 

160 

150

213 

207 

169 

157 

169

160 

160

158 

157 

157

151 

160 

156 

156 

154 

158

Mean

218 

275 

284

252

320 

425 

555 

699 

765 

497 

191 

147 

231

383

Sept.

168 

166 

150 

145 

138

122 

127 

154 

178

216

228

229 

238

253 

267 

270 

274 

277

277 

277 

a285 

h295 

h299

h306 

h313 

h300 

h262 

h272

Runoff in 

acre-feet

13,390 

16,380 

17,490

182,500

19,660 

23,610 

34,110 

41,570 

47,050 

29,570 

11,740 

9,020 

13,750

277,300

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for station at 

Topaz.

h Computed from staff-gage reading (temporary gage at site 1 mile upstream Sept. 29, 30). 

Note.--Stage-discharge relation affected by ice Jan. 5-23.
68 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK

Raft River at Peterson Ranch, near Bridge, Idaho

Location. Water-stage recorder, lat . 42°04', long. 113°27 I , in sec. 5, T. 16 S. , R. 26

 K. , 100 feet upstream from One Mile Creek, 400 feet downstream from road bridge, 7? 

miles southwest of Bridge, and 16 miles south of Malta.

Records available. September 1946 to September 1950.

Extremes. --Maximum discharge during year, 80 second-feet Jan. 18 (gage height, 2.10 feet);

 mTnTmum, 1.2 second-feet Jan. 13 (gage height, 0.90 foot), caused by ice jam upstream. 

1946-50: Maximum discharge, 338 second-feet May 17, 1949 (gage height, 3.41 feet); 

minimum, that of Jan. 13, 1950.

Remarks. --Records good except those for August and September, which are fair, and those

 Tor~periods of ice effect or no gage-height record, which are poor. Diversions above 

station for irrigation.

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

Day

1 

2 

3 

4 

5

6 

7

e

9

10

11

12 

13 

14 

15

16- 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

8.0 

8.0 

7.7 

7.4 

7.4

7.4 

7.7 

8.9

8.6 

8.6

8.3 

8.3 

8.3 

8.3

8.3

8.3 

8.3 

9.4 

10 

10

9.9 

10 

9.9 

9.4 

9.4

8.9 

8.9 

8.6 

8.6 

8.6 

8.6

Nov.

8.6 

8.9 

8.9 

8.9 

8.9

9.4 

9.4 

9.9 

10 

12

13 

14 

14 

14 

13

13 

13 

13 

13

13

13 

13 

14

16 

16

16 

16 

15 

15 

16

Dec.

16 

16 

16 

14 

15

14

15 

18 

16 

14

13 

11 

12

13 

»12

14 

14 

14 

14 

al3

a!3 

a!4 

a!4 

a!3 

a!2

a!2 

a!3 

a!3 

a!2 

a!2 

all

Jan.

all 

11 

blO 

blO 

blO

11 

12 

12 

12 

11

9.9 

9.9 

9.9 

8.9 

10

10 

11 

31 

44 

30

32 

40 

37 

21

18

20 

18 

15 

23 

18 

18

Feb.

14 

a!3

a!2 

a!8

a25

a26 

a24 

a22 

a21 

a 20

a!9 

*f!9 

20 

22

25

26 

28 

26 

28 

29

26

25 

26 

28 

28

30

29 

26

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

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

lendar year 1949 

ary .

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

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

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

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

Mar.

26 

27 

26

26 

27

30 

26 

26 

27 

28

28 

28 

26 

28 

28

27 

28 

30 

34 

42

37

36 

34 

36 

47

45 

39 

38 

34

33

36

Apr.

46 

49 

50 

47 

41

41 

39 

39 

43 

41

37 

37 

36 

36 

40

38 

37 

36 

37 

37

37 

37 

38 

36 

34

34 

32 

34 

36 

36

Secondfoot -days

268.0 

377.9 

423

10,644.6

544.6 

655 

983 

1,161 

1,101 

546.2 

278.6 

213.6 

205.6

6,757.5

May

35 

39 

42 

44 

49

51 

46 

44 

41 

38

32 

35 

35 

37 

38

39

36 

33 

28 

26

28 

32 

32 

32 

28

28 

28 

31 

34 

32 

28

Maximum

10 

16 

18

268

44 

30

47 

50 

51 

33 

10 

8.3 

8.3

51

June

25 

26 

32 

33 

31

26 

23 

31 

33 

23

18 

18 

18 

16 

15

14 

14 

14 

13 

13

12 

13 

12 

12 

12

11 

10 

9.9 

9.4 

8.9

July

8.9 

8.6 

8.6 

8.6 

8.6

8.6 

9.9 

10 

10 

10

10 

9.9 

8.9 

a9.0 

a9.0

a9.0 

f9.4 

f9.4 

9.4 

9.4

8.9 

8.6 

8.3 

8.6 

8.3

8.3 

8.6 

8.6 

8.9 

8.3 

8.0

Minimum

7.4 

8.6 

11

6.7

8.9 

12 

26 

32 

26 

8.9 

8.0 

6.1 

5.8

5.8

Aug.

7.4 

7.4 

7.4 

8.3 

8.3

8.3 

8.0 

7.4 

7.0 

7.0

6.7 

7.0 

7.4 

7.7 

7.4

6.7 

6.7 

6.4 

6.4 

6.4

6.4 

6.1 

6.1 

6.7 

6.4

6.1 

6.1 

6.1 

6.1 

6.1 

6.1

Mean

8.65 

12.6 

13.6

29.2

17.6 

23.4 

31.7 

38.7 

35.5 

18.2 

8.99 

6.89 

6.85

18.5

Sept.

5.8 

5.8

6.1 

5.8 

6. 1

6.1 

6.1 

6.4 

7.0 

7.0

7.0 

7.0 

6.4 

6.7 

6.7

6.7 

6.7 

6.7 

7.0 

7.4

7.0 

7.4 

7.4 

7.4 

7.4

7.4 

7.4 

7.4 

8.0 

8.3

Runoff In 

acre-feet

532 

750 

839

21,120

1,080 

1,300 

1,950 

2,300 

2,180 

1,080 

553 

424 

408

13,400

* Winter discharge measurement made on this day.

a No gage-hjight record; discharge computed on basis of weather records and records for 

Falls Creek near San Jaclnto and other nearby streams. 

b Stage-discharge relation affected by Ice. 

f Computed on basis of partly estimated gage-height record.
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON PALLS CREEK

Clear Creek near Naf , Idaho

Location. --Water-stage recorder, lat. 41°58'15", long. 113°17'15", in NEirSW^ sec. I,, 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. Prior to Mar. 28, 1950, at 

site 600 feet upstream at different datum.

Drainage area. 19 square miles.

Records available. --January 1910 to June 1911 (fragmentary), June to December 1912 (gage 

heights only), November 1944 to September 1950.

Extremes . --Maximum discharge during year, 89 second-feet June 1 (gage height, 1.92 feet); 

minimum, 0.2 second-foot Aug. 23, 24 caused by irrigation diversion.

1910-11, 1944-50: Maximum discharge observed, 180 second-feet May 13, 1910; minimum, 

0.2 second-foot Aug. 15, 1949, Aug. 23, 24, 1950, caused by irrigation diversion.

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

which are fair. Diversions above station for irrigation.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.8 

1.6 

1.5 

1.4

1.4

1.6 

2.1 

2.4 

2.4 

2.4

2.4 

2.7 

2.4 

2.0 

2.0

1.8 

2.1 

2.7 

2.2 

2.2

2.2 

2.2 

2.4 

2.4 

2.4

2.2 

2.2 

2.1 

2.2 

2.1 

2.0

Nov.

2.1 

2.0 

2.0 

2.0

1.8

1.8 

1.8 

1.8 

2.4 

2.7

2.6 

2.2 

2.1

2.1 

2.1

2.1 

2.1 

2.0 

2.0 

2.0

1.8 

1.6 

2.O 

2.4 

2.2

2.2 

2.2 

2.4 

2.2 

2.2

Dec.

2.0 

*2.2 

1.8 

2.1 

2.1

2.1 

2.1 

2.0 

1.8

I b2.0

2.0 

2.0 

2.0 

2.0 

b2.0

2.1 

2.0 

2.0 

b2.0 

b2.0

2.0 

2.0 

2.0 

2.0

1.8 

b2.0

Jan.

2.0

(*)

. b2.1

2.1 

b2.0 

2.0

1.1 

1.4 

b2.0 

b2.0 

2.1

2.7 

4.6 

*4.4

I b3.0 

> b2.1

Feb.

> b2.1

2.1 

1.8

 a2.0

*2.1

b2.2 

b2.2 

2.2 

2.6 

2.7

2.7 

2.7 

2.4

Month

Goto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

raber. ...................................

lendar year 1945 

sry

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

Mar.

2.6 

2.4 

2.1 

2.4 

2.7

2.6 

\ b2.6 

2.2

1

*2.4 

*2.4

2.4 

2.7 

2.7 

2.9 

3.2

2.6 

2.6 

2.7 

2.7 

2.9

3.2 

a2.4 

1.7 

1.7 

2.1 

2.7

Apr.

2.7 

3.0 

3.0 

2.4 

2.1

2.4 

3.0 

3.0 

3.0 

3.0

3.4 

4.3 

4.3 

5.4 

4.8

5.4 

6.5 

6.5 

7.1 

8.3

10 

11 

11 

10 

9.5

9.5 

11 

10 

9.5 

8.9

Secondfoot-days

65.5 

62.9 

62.1

3,863.2

72.8 

60.2 

78.0 

184.0 

1,039.4 

1,676 

559.7 

115.9 

51.4

4,027.9

Peak discharge (base, 70 sec. -ft.). June 1 (8 p.m.) 8

May

8.3 

8.3 

7.7 

8.3 

7.7

7.1 

7.1 

7.1 

7.1 

7.1

7.7 

8.9 

12 

15 

23

29 

37 

48 

41 

36

40 

51 

67 

73 

65

60 

62 

67 

65 

75 

81

Maximum

2.7 

2.7

109

4.6 

2.7 

3.2 

11 

81 

84 

34 

7.1 

2.7

84

June

79 

79 

65 

56 

56

73 

84 

71 

56 

48

48 

54 

60 

62 

62

65 

65 

58 

54

51

53 

56 

56 

56 

44

34 

32 

32 

34 

33

Minimum

July

34 

33 

32 

29 

28

28 

30 

27 

26 

25

I a20

I al5

> alO

8.9 

8.9

8.3 

8.3 

8.9 

8.3 

6.5 

4.6

1.4 

1.6

-

1.1

2.1 

7.1 

32 

4.6 

1.0 

1.0

-

Aug.

4.7 

5.9 

7.1 

7.1 

6.5

6.5 

4.4 

4.8 

6.5 

5.9

5.9 

5.4 

4.8 

4.3 

2.5

2.4 

3.0 

3.O 

3.0 

3.0

2.4 

2.1 

1.0 

1.4 

2.1

2.1 

1.9 

1.7 

1.5 

1.5 

1.5

Mean

2.11 

2.10 

2.00

10.6

2.35 

2.15 

2.52 

6.13 

33.5 

55.9 

18.1 

3.74 

1.71

11.0

Sept.

1.3 

1.2 

1.2 

1.2 

1.0

1.2

1.3 

1.5 

2.1 

2.7

2.7 

1.9 

1.9 

1.7 

1.9

1.9 

2.1 

2.1 

1.9 

1.9

1.7 

1.5 

1.7 

1.5 

1.5

1.5 

1.5 

1.5 

1.9 

2.4

Runoff In 

acre-feet

130 

125 

123

7,660

144 

119 

155 

365 

2,060 

3,320 

1,110 

230 

102

7,980

9 see. -ft.

a No gage-height record; discharge computed on basis of discharge measurements and weather records 

or interpolated.

b Stage-discharge relation affected by Ice.
70 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUP RIVER AND SALMON FALLS CREEK 

North Side Minidoka Canal near Mlnldoka, Idaho

Location.--Water-stage recorder, lat. 42°40', long. 113°29', In sec. 1, T. 9 S., R. 25 

E., 600 feet downstream from head gates at Mlnldoka Dam and 6 miles south of Minidoka

Records available.--May 1909 to September 1950.

Extremes.--Maximurn discharge during year, 1,710 second-feet July 7 (gage height, 9.85 

reet); no flow during winter.

1909-50: 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. Flow controlled by head gates. Canal diverts water from 

Snalce 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 1949 to September 1950

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

692 

670 

652 

656 

656

622 

570 

466 

430 

374

306 

284 

288 

290 

294

292 

288 

255 

222

93

0 

O 

0

0 

0

0 

0 

0

o 

o 

0

Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

uary. ...................................

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

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

Mar. Apr.

O

o 

o 

0

o

0 

0

o

0 

0

0 

0

o

0

o

0

o

120 

192 

258

347 

407 

430 

570 

780

878 

974 

1,010 

1,010 

1,010

Secondfoot-days

8,400 

0 

0

221,173

0 

0 

0 

7,986 

41,897 

36,108 

51,660 

43,430 

26,302

215,783

May

1,070 

1,120 

1,120 

1,020 

935

882 

880 

878 

875 

937

1,100 

1,290 

1,390 

,450 

,560

,620 

,630 

,640 

,650 

,660

,630 

,660 

1,660 

1,640 

1,620

1,580 

1,560 

1,510 

1,450 

1,440 

1,440

Maximum

692 

0 

0

1,660

0 

0 

0 

1,010 

1,660 

1,520 

1,690 

1,630 

1,380

1,690

June

1,440 

1,390 

1,130 

1,030 

1,030

1,030 

979 

914 

917 

919

919 

1,060 

1,240 

1,390 

1,490

1,520 

1,450 

1,420 

1,360 

1,330

1,260 

1,210 

1,210 

1,120 

1,040

1,020 

1,140 

1,280 

1,380 

1,490

July

1,570 

1,600 

1,630 

1,640 

1,640

1,640 

1,660 

1,690 

1,690 

1,690

1,680 

1,680 

1,680 

1,680 

1,680

1,680 

1,670 

1,690 

1,690 

1,690

1,690 

1,690 

1,690 

1,690 

1,690

1,690 

1,680 

1,640 

1,640 

1,640 

1,650

Minimum

0 

0 

0

0

0 

0 

0 

0 

875 

914 

1,570 

1,230 

638

0

Aug.

1,630 

1,610 

1,610 

1,610 

1,460

1,360 

1,360 

1,360 

1,360 

1,350

1,350 

1,270 

1,230 

1,230 

1,260

1,350 

1,390 

1,390 

1,390 

1,390

1,390 

1,410 

1,430 

1,430 

1,430

1,440 

1,440 

1,440 

1,370 

1,330 

1,360

Mean

271 

0 

0

606

0 

0 

0 

266 

1,352 

1,204 

1,666 

1,401 

877

591

Sept.

1,380 

1,380 

,380 

,320 

,270

,270 

,280 

,200 

,070 

935

903 

844 

780 

750 

748

746 

680 

640 

638 

638

644 

648 

650 

648 

648

646 

642 

642 

642 

640

Runoff In 

acre-feet

16,660 

0 

0

438,700

0 

0 

0 

15,840 

83,100 

71,620 

102,500 

86,140 

52,170

428,000
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK 71

South Side Minidoka Canal near Minidoka, Idaho

Location.--Water-stage recorder, lat. 42°40', long. 113°29 I , in sec. 12, T. 9 S., R. 25 E., 

3UU yards downstream from head gates at Minidoka Dam and 6 miles south of Minidoka.

Records available. April 1909 to September 1950.

Extremes. Maximum discharge during year, 1,400 second-feet July 3, 25; maximum gage height, 

b. U4 feet July 25; no flow during winter.

1909-50: Maximum discharge, 1,400 second-feet June 10, 12, 14, 1948, July 3, 25, 

1950; 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 October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

491 

482 

475 

484 

487

487 

452 

288 

275 

273

281 

293 

293

288 

279

279 

273 

279 

279 

104

0 

0 

0 

0 

0

O 

O 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

MRV

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

ter year 1949-5O .......................

Mar. Apr.

0

o 

o

o 

o

0

0 

0 

0 

0

62 

175 

304 

399 

422

430 

390 

430 

430 

430

437 

437 

446 

434

504

552 

605 

726 

777 

777

Secondfoot-days

6,842 

0 

0

177,612

0 

0 

0 

9,167 

33,891 

32,289 

41,030 

37,650 

22,470

183,339

May

777 

777 

774 

777 

777

765 

765 

765 

632 

554

656 

832 

1,000 

1,140 

1,240

1,310 

1,330 

1,360 

1,370 

1,360

1,370 

1,360 

1,360 

1,360 

1,350

1,350 

1,340 

1,360 

1,360 

1,360 

1,360

Maximum

491 

0

0

1,370

0 

0 

0 

777 

1,370 

1,310 

1,390 

1,340 

1,260

1,390

June

1,300 

1,250 

1,120 

963 

939

963

970 

892 

847 

841

865 

1,050 

1,200 

1,230 

1,250

,250 

,250 

,280 

,310 

,240

,210 

,170 

,120 

,040 

832

735 

783 

979 

1,150 

1,260

July

1,340 

1,370 

1,390 

1,380 

1,340

1,320 

1,320 

1,310 

1,310 

1,310

1,310 

1,300 

1,280 

1,280 

1,270

1,260 

1,290 

1,330 

1 , 33U 

1,340

1,350 

1,340 

1,330 

1,200 

1,370

1,350 

1,340 

1,340 

1,350 

1,340 

1,340

Minimum

0 

0 

0

0

0 

0 

0 

0 

554 

735 

1,200 

1,050 

340

0

Aug.

1,340 

1,320 

1,320 

1,310 

1,310

1,300

1,210 

1,120 

1,100 

1,030

1,110 

1,130 

1,100 

1,O6O 

1,050

1,070 

1,160 

1,220 

1,250 

1,290

1,310 

1,310 

1,310 

1,310 

1,300

1,280 

1,220 

1,160 

1,160 

1,190 

1,240

Mean

221 

0 

0

487

0

0

o

306 

1,093 

1,076 

1,324 

1,215 

749

502

Sept.

1,260 

1,250 

1,240 

1,210 

1,240

1,260 

1,230 

1,230 

1,020 

871

803

718 

679 

656 

646

648 

648 

597 

509 

468

444

485 

499

418 

340

342

362 

374 

413 

610

Runoff In 

acre-feet

13,570 

0 

0

352,300

0 

0 

0 

18,180 

67,220 

64,040 

81,380 

74,680 

44,570

363,600

Note. Discharge for period Apr. 11-18 was spilled back to Snake River through wasteway 

miles downstream from Minidoka Dam.
72 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUP RIVER AND SALMON FALLS CREEK

Goose Creek above Trapper Creek, near Oakley, Idaho

Location. Water-stage recorder, lat. 42°07', long. 113°56', in sec. 13, T. 15 S. , R. 21 

E., b miles upstream from Trapper Creek and 10 miles south of Oakley.

Records available.--April 1911 to September 1916, March 1919 to September 1950. 

Average discharge. 27 years (1911-14, 1926-50), 41.0 second-feet.

Extremes. Maximum discharge during year, 232 second-feet May 21 (gage height, 3.49 feet); 

minimum, 3.9 second-feet Sept. 7 (gage height, 1.33 feet).

1911-16, 1919-50: 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 22 to Sept. 25, 1940, Sept. 14, 1947.

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

wnicn 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 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

11 

12 

12 

12

13 

14 

16 

17 

19

20 

22 

20 

19 

19

19 

19 

19 

19

20

22 

23 

23

22 

2E

22 

21 

21 

20 

20 

20

Nov.

20

*22 

21 

21 

21

22 

22 

22 

23 

25

27 

27 

26 

25 

24

24 

24 

23 

23 

22

21 

20 

21 

21 

21

20 

20 

20 

20 

20

Dec.

19 

IB 

18 

17 

17

16 

17 

17 

17 

15

14 

13 

11 

13

*14

, 16

Jan.

 14

25 

20

Feb.

> 20 

25

22 

(*)

30 

40

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-So .......................

Mar.

40

I"

40

45 

50

. 55

*52 

52 

55

Apr.

58 

63 

71 

78 

80

78 

77 

77 

80 

82

80 

78 

77 

S3 

95

100 

99 

97 

105 

113

117 

123 

137 

144 

141

132 

127 

130 

141

141

Secondfoot-days

568 

668 

492

18,881.8

569 

794 

1,419 

3,004 

4,764 

2,122 

500 

379.6 

229.5

15,509.1

* Winter discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 4 

16 to Mar. 28; discharge computed on basis of weather re 

age records for Oakley Reservoir) .

Bay

134 

131 

122 

122 

124

121 

115 

113 

106 

104

93

92 

95 

98 

117

139 

178 

207 

217 

226

226 

213 

211 

209 

207

202 

195 

181 

168 

156 

142

Maximum

23

27

302

144 

226 

130 

27

18 

13

226

June

130 

128 

124 

119 

112

95 

92

98 

95 

87

82 

77 

71 

68 

63

56 

50 

54 

47 

42

42 

49 

49 

49 

49

45 

44 

40 

35 

30

July

27 

20 

15 

14 

14

14 

15 

16 

17 

18

21 

22 

20 

20 

18

16 

14 

12 

12 

13

14 

15 

17 

16 

15

14 

14 

14 

14 

14 

15

Aug.

15

16 

17 

17 

18

18 

18 

17 

15 

14

13 

13

14 

14 

14

14 

13 

12

10 

9.7

9.4 

9.0 

8. 

8. 

8.

8. 

8. 

8. 

6.8 

6.1 

5.9

Minimum Mean

10 18.3 

20 22.3 

15.9

4.4 51.7

18.4 

28.4 

45.8 

58 100 

92 154 

30 70.7 

12 16.1 

5.9 12.2 

4.3 7.65

4.3 42.5

Sept.

5.3 

4.8 

4.6 

4.6 

4.3

4.3 

4.3 

4.3 

4.4

4.8

5.7 

5.9 

6.1 

5.9 

5.9

6.4 

6.6 

7.4 

8.1 

9.0

8.7 

8.7 

9.4 

13 

13

13 

13 

13 

12 

13

Runoff In 

acre-feet

1,130 

1,320 

976

37,450

1,130 

1,570 

2,810 

5,960 

9,450 

4,210 

992 

753 

455

30,760

to about Mar. 15 (no gage-height record Dec 

2ords, records for nearby streams, and stor-
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUP RIVER AND SALMON FALLS CREEK 73

Oakley Reservoir near Oakley, Idaho

Location. Staff gage, lat. 42°12', long. 113°55', 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 1950.

Extremes. Maximum contents observed during- year, 27,000 acre-feet June 1, 4, 11; maximum 

gage neight observed, 82.8 feet June 4; no contents Sept. 30.

1912-50: 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, 

1949.

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 for 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 1949 to September 195O

Day

1

2

3 

4

5

6

7

9 

10

11

12

13

14

15

16

17

18

Ib

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3,750

-

_

-

_

-

-

-

_

_

-

_

_

_

4,790

-

4,990

_

_

_

-

5,450

_

_

_

_

5,640

Nov.

5,680

5,740

_

-

_

6,030

-

-

6,520

_

6,640

_

_

_

_

-

.

_

_

7,250

.

_

_

_

7,550

Dec.

7,600

-

7,780

-

_

-

-

8,250

_

_

8,360

-

.

_

_

_

8,660

_

_

_

_

-

8,980

_

_

_

_

9,340

Jan.

9,410

-

_

-

.

-

9,750

_

_

_

10,100

.

_

_

_

-

_

_

_

_

-

.

_

_

.

11,400

Feb.

_

-

_

-

_

11,900

-

-

12,300

_

12,500

_

_

_

_

-

_

_

_

_

-

14.OOO

_

14,'300

_

_

-

Mar.

14,500

-

_

15,000

_

-

-

16,000

_

_

16,100

_

_

_

16,600

-

.

_

17,400

-

17,600

_

_

_

18,200

Apr.

18,400

18,500

_

-

.

-

19 , 700

_

_

-

20,800

_

_

* _

_

22,300

_

22,400

_

_

-

_

_

_

24,600

-

May

_

-

_

-

_

25,900

-

-

_

26,100

-

_

_

_

_

-

26,300

_

_

_

-

.

_

26,900

_

_

27,000

June

27,000

-

27,000

-

_

-

-

27,000

_

_

_

26,700

_

_

26,100

_

-

_

_

_

_

24,900

_

_

_

_

23,800

-

July

23,600

-

_

-

_

23,700

22,900

-

_

_

21,400

21,000

_

_

-

_

_

18,000

-

_

_

_

_

15,500

15,200

Aug.

_

-

_

-

13,400

-

-

-

_

-

11,200

_

_

11,200

_

-

_

_

9,940

-

.

_

.

_

_

8,020

Sept.

_

-

_

-

_

5,870

-

-

-

4,760

_

3,990

3,730

-

-

_

_

_

1,940

-

.

965

-

_

0

-

Monthly elevation and contents, water year October 1949 to September 1950

Date

Calendar year 1949. ....

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

Water year 1949-5O.....

Gage height 

{ feet]

_

-

0

-

Contents 

(acre-feet)

a9 3 3 4O

-

0

-

Change In contents 

during month 

(acre-feet)

+2,860

-8,020

-3,910

a Ho gage-height record; contents interpolated.

253646 O - 53 - 6
74 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEOF RIVER AND SALMON FALIS CREEK

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 1950. 

Average discharge.--26 years (1911-12, 1913-14, 1926-50), 13.8 second-feet.

Extremes. Maximum discharge during year, 48 second-feet May 19 (gage height, 5.33 feet); 

minimum, 4.1 second-feet Dec. 20 (gage height, 4.64 feet), ice jam upstream.

1911-16, 1919-50: Maximum discharge recorded, 270 second-feet Aug. 17, 1941 (gage 

height, 6.99 feet), during cloudburst, from rating curve extended above 100 second-feet 

on basis of velocity-area studies and flow over weir (a higher flow may have occurred 

during cloudburst about 12 p.m. Aug. 15. 1931); minimum recorded, 2.3 second-feet Feb. 

22, 1949.

Remarks.--Records good. A few small diversions above station. Flow of artesian well, 

completed in 1936, enters above. Practically entire flow passing station is stored in 

Oakley Reservoir.

Cooperation.--Water-stage recorder inspected by Oakley Canal Co. 

Revisions (water years).--W 1063: 1941, 1943.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

11 

11 

10

10

IE 

IE 

IE 

IE 

12

12 

IE 

12 

12 

11

11 

11 

11 

12 

IE

12 

12

11 

11 

11

10 

10 

10 

10 

10 

10

Nov.

10 

10 

11 

11 

11

11 

IE 

IE 

IE 

14

IE 

12 

IE 

12 

11

10

10 

10 

10 

10

11

12 

12 

13 

12

12 

12 

12 

12 

12

Dec.

12 

12 

12 

12 

IE

12 

12 

12 

IE 

11

9.5 

9.5 

14 

12 

IE

12 

12 

IE 

12 

9.5

12 

13 

12 

12 

9.5

13 

14 

12 

12 

IE 

IE

Jan.

IE 

IE

7.0 

9.5 

10

12 

13 

12 

12 

12

IE 

9.5 

11 

12 

9.5

11 

15 

18 

17 

14

14 

18 

17 

15 

12

11 

16 

14 

11 

12 

12

Feb.

12 

10 

10 

14 

17

15 

13 

IE 

12 

IE

12 

12 

12 

12 

IE

12 

IE 

IE 

IE 

IE

12 

12 

12 

14 

14

14 

15 

14

Month

Octo 

Hove 

Dece

Ca

janu 

Pebr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194S

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

Mar.

13

14 

14 

14 

15

15 

14 

14 

14

14

14 

IE 

14 

14 

14

13

15 

15 

17 

17

16 

16 

16 

18 

18

16 

17 

16 

15 

15 

17

Apr.

18 

EO 

20 

19 

18

18 

19 

EO

EO 

20

20 

20 

20 

23 

22

22 

22 

25 

25 

25

26 

28 

30 

E8 

28

27 

28 

29 

29 

28

Secondfoot-days

347 

343 

367.0

6,23E.3

392.5 

354 

466 

697 

1,063 

825 

448 

339 

307.0

5,948.5

May

E8 

28 

E7 

E7 

26

E5 

E5 

E5 

25 

25

25 

25 

27 

30 

33

36 

42 

47 

47 

44

43

43 

43 

44 

43

41 

39 

38 

38 

37 

37

Maximum

12 

14 

14

56

18 

17 

18 

30 

47 

38 

18 

12 

12

47

June

37 

38 

36 

35 

32

34 

36 

36 

33 

32

29 

28 

28 

28 

26

25 

25 

25 

25 

24

24 

24 

E2 

24 

22

21 

20 

19 

19 

18

July

18 

17 

17 

17

17

16 

17 

17 

17 

17

17 

16 

15 

15 

14

14 

14 

14 

14 

13

12 

12 

12 

12 

12

12 

12 

12 

12 

12 

12

Minimum

10 

10 

9.5

-

7.0 

10 

12 

18 

25 

18 

12 

10 

9.5

7.0

Aug.

12 

12 

12

12 

12

12 

12 

11 

11 

12

12 

12 

12 

12 

11

10

10 

10 

10 

10

10 

10 

1011 11

10 

10 

10 

10 

10 

10

Mean

11.2 

11.4

11.8

17.1

12.7 

12.6 

15.0 

23.2 

34.3 

27.5 

14.5 

10.9 

10.2

16.3

Sept.

9.5 

10 

9.5

10

10

10 

10

11 11 11

10 

10 

10

10

10

10 

10

11

10 

10

10 

10

11

10

10

10 

10 

10

11

12

Runoff In 

acre-feet

688 

680 

728

12,370

778 

702 

924 

1,380 

2,110 

1,640 

889 

672 

609

11,800
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUP RIVER AND SALMON PALLS CREEK 75

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 feet 

downstream from pumping station and 2j miles northeast of Milner.

Records available.--April 1919 to September 1950. Records collected by North Side Canal 

co. iyj.t>-i9ib.

Extremes. Maximum discharge during year, 73 second-feet July 25-29, Aug. 1; no flow Oct. 1 

to Apr. 26, Sept. 27-30.

1919-50: Maximum discharge, 73 second-feet Aug. 10-16, 1949, July 25-29, Aug. 1,- 

1950; no flow for many days.

Remarks. Records excellent. Gage read twice daily. Plow regulated by pumping plant which 

TTTTs water from Snake River for irrigation on North Side Twin Palls tract.

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

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 194 

ary

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

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

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

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

11

a!8 

25 

25

Secondfoot -days

0 

0 

0

9,397

0 

0 

0 

79 

1,892 

1,860 

2,180 

2,174 

1,362

9,547

May

40 

54 

62 

62 

62

62 

a62 

62 

62 

62

62

62 

62 

62 

62

62 

62 

62 

62

62

a62 

62 

62 

62 

62

62 

62 

a62 

62 

62 

62

Maximum

0

o 

o

73

0 

0 

0 

25 

62 

62 

73 

73 

61

73

June

62

62 

62 

a62 

62

62 

62 

62 

62 

62

a62 

62 

62 

62 

62

62 

62 

a62 

62 

62

62 

62 

62 

62 

a62

62 

62 

62 

62 

62

July

61 

a66 

70 

70 

70

70 

68 

68 

a68 

68

70 

70 

70 

70 

70

a70 

70 

70 

72 

72

72 

72 

a72 

72 

73

73 

73 

73 

73 

a72 

72

Minimum

0 

0 

0

0

0 

0 

0 

0 

40 

62 

61 

69 

0

O

Aug.

73 

69 

69

71 

71

a71 

71 

71 

70 

70

70 

70 

70 

69 

69

70 

70 

70 

70 

a70

70 

70 

70 

70 

70

70 

a70 

70 

70 

70 

70

Mean

0 

0 

0

25.7

0 

0 

0 

2.63 

61.0 

62.0 

70.3 

70.1 

45.4

26.2

Sept.

61 

61 

48 

60 

59

59 

59 

59 

59 

a59

59 

59 

59 

58 

55

55 

a54 

54 

51

51

45 

41 

35 

a35 

35

32 

0 

O 

O 

0

Runoff In 

acre-feet

0 

0

o

18,640

0 

0 

0 

157 

3,750 

3,690 

4,320 

4,310 

2,700

18,930

a No gage-height record; discharge Interpolated.
76 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AMD SALMON FALLS CREEK

Milner low-lift canal near Mllner, Idaho

Location. --Pumping plant, lat.. 42°31', long. 114°01', in sec. 32, T. 10 S., R. 21 E., at 

head of canal and ij miles south of Mllner.

Records available.--June 1921 to September 1950.

Extremes.--Maximum discharge during year, 200 second-feet July 18-24; no flow for many days.

 IS21-50: Maximum discharge, 203 second-feet Aug. 26, 27, 1945; no flow for many days.

Remarks.--Records excellent. Flow controlled by pumping plant, which lifts water from

 SnaEce River above Milner Dam for Irrigation of 9,130 acres of land In Milner low-lift 

Irrigation district.

Cooperation.--Record of pump discharges furnished by Mllner low-lift irrigation district.

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

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Deee

Ca

Janu 

Febr 

Hare 

Aprl 

Ma v

June 

July 

Augu 

Sept

Wa

lendar year 1945

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

Mar. Apr.

0 

0 

0 

0

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

0 

0 

30 

52

52 

66 

80 

80 

80

Secondfoot -day s

0 

0 

0

26,716

0 

0 

0 

440 

4,978 

5,153 

5,812 

5,731 

4,593

26,707

May

107 

107 

132 

132 

132

132 

132 

132 

154 

154

154 

154 

170 

178 

178

178 

178 

178 

178 

178

178 

178 

178 

178 

178

175 

175 

175 

175 

175 

175

Maximum

0 

0 

0

201

0 

0 

0 

80 

178 

175 

200 

199 

177

200

June

175 

175 

175 

175

175

175 

175 

175 

175 

175

175 

175 

175 

175 

175

175 

175 

174 

172 

171

171 

171 

171 

171 

171

166 

160 

160 

160 

160

Minimum

July

160 

160 

ISO 

160 

160

ISO 

169 

177 

177 

177

177 

192 

198 

198 

198

198 

198 

200 

200 

200

200 

200 

200 

200 

199

199 

199 

199 

199 

199 

199

0 

0 

0

0

0

0 

0 

0 

107 

ISO 

160 

177 

100

0

Aug.

199 

199 

199 

199 

186

199 

193 

191 

191 

191

191 

191 

191 

191

178

178 

178 

178 

178 

178

178 

178 

178 

178 

178

177 

177 

177 

177 

177 

177

Mean

0 

0

0

73.2

*0 

0 

0 

14.7 

161 

172 

187 

185 

153

73.2

Sept.

177 

177 

176 

176 

176

175 

175 

175 

174 

174

174 

174 

174 

174 

174

169 

169 

158 

146 

138

138 

125 

125 

125 

125

125 

125 

100 

100 

100

Runoff In 

acre-feet

0 

0 

0

52,790

0 

0 

0 

873 

9,870 

10,220 

11,530 

11,370 

9,110

52,970
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON PALLS CREEK 77

Gooding Canal at Mllner, Idaho

Location.--Water-stage recorder on Milner-Gooding Canal in NWij sec. 18, staff gage on A 

lateral in sec. 19, T. 10 S. , 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.

Records available.--May 1930 to September 1950.

Extremes.--Maximum daily discharge during year, 2,620 second-feet July 21-23. No flow for 

many days.

1930-50: Maximum daily discharge, 2,680 second-feet July 26, 28, 1949; no flow for 

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 the North Side Twin Palls 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 35 second-feet to that sum for loss between head gates and division point.

Cooperation.--Gage-height record furnished by Horth Side Canal Co. and American Palls 

Keservoir District No. 2.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

Zi. 

23 

24 

2d

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

310 

Z80 

100

100 

100 

100 

100 

100

100 

50 

0 

0 

0

0 

0 

0 

0 

0 

0

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebn 

Marc 

Apr!

July 

Augu 

Sept

nber. ...........

lendar year 1949

3t........ ......

Water year 1949-50

Dec.

Second 

foot -da rs

1,340 

0 

0

371,010

0 

0 

0 

12,830 

66,850 

72,590 

78,880 

77,090 

65,560

375,140

Feb. Mar. Apr.

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0

0 

0

0

0 

0 

500 

500 

580

620 

740 

770 

790 

850

1,290 

1,470 

1,560 

1,590 

1,570

Discharge in second-feet

Maximum Minimum

310 0 

0 0 

0 0

2,680 0

0 0 

0 0 

0 0 

1,590 0 

2,530 1,560 

2,490 2,280 

2,620 2,450 

2,610 2,400 

2,430 0

2,620 0

Mean

43.2

0 

0

1,016

0 

0 

0 

428 

2,156 

2,420 

2,545 

2,487 

2,185

1,028

Hay

1,560 

1,630 

1,680 

1,720 

1,750

1,770 

1,810 

1,970 

1,950 

1,930

2,070 

2,150 

2,170 

2,170 

2,270

2,350 

2,370 

2,310 

2,370 

2,400

2,400 

2,480 

2,490 

2,530 

2,510

2,500 

2,380 

2,270 

2,290 

2,290 

2,310

June

2,300 

2,320 

2,300 

2,280 

2,280

2,290 

2,310 

2,360 

2,380 

2,390

2,410 

2,450 

2,480 

2,450 

2,460

2,450 

2,450 

2,470 

2,490 

2,480

2,490 

2,490 

2,480 

2,490 

2,490

2,480 

2,480 

2,460 

2,470 

2,460

Total 

runoff in

2,6iO 

0 

0

735,800

0 

0 

0 

25,450 

132,600 

144,000 

156,500 

152,900 

130,000

744,100

July

2,450 

2,480 

2,460 

2,500 

2,530

2,540 

2,530 

2,540 

2,560 

2,570

2,560 

2,580 

2,560 

2,550 

2,570

2,560 

2., 550 

2,550 

2,530 

2,600

2,620 

2,620 

2,620 

2,570 

2,540

2,540 

2,520 

2,520 

2,500 

2,530 

2,530

Aug.

2,570 

2,610 

2,600 

2,610 

2,590

2,590 

2,600 

2,570 

2,530 

2,550

2,540 

2,540 

2,540 

2,480 

2,450

2,430 

2,420 

2,410 

2,400 

2,400

2,410 

2,430 

2,410 

2,410 

2,420

2,430 

2,420 

2,430 

2,440 

2,430 

2,430

Sept.

2,420 

2,430

2,410 

2,410 

2,410

2,420 

2,400 

2,400 

2,410 

2,390

2,400 

2,400 

2,370 

2,310 

2,280

2,290 

2,300 

2,320 

2,250 

2,170

2,130 

2,120 

2,080 

2,050 

2,060

2,050 

2,080 

2,080 

1,720 

0

Distribution 

(acre-feet)

To MilnerGooding 

project

0 

0 

0

426,400

0 

0 

0 

20,870 

78,780 

89,380 

95,800 

90,310 

72,830

448,000

To North Side 

Canal Co. 

project

2,660 

0 

0

309,500

0 

0 

0 

4,580 

53,810 

54,600 

60,650 

62,600 

57,200

296,100
78 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON PALLS CREEK

North Side Twin Palls Canal at Milner, Idaho

Location. Water-stage recorder, lat. 42°3S', 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 1950.

Extremes.--Maximum discharge during year, 2,880 second-feet July 20; no flow for many

1909-50: Maximum daily discharge, 3,200 second-feet July 5-7, 29-31, 1921, May 15, 

1928, June 2, July 23, 1929; no flow at times when head gates were closed.

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

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 163,000 

acres of land under the 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 1949 to September 1950

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,380 

1,270 

1,100 

1,020 

1,060

1,130 

1,140 

1,260 

1,230 

1,040

1,040 

992 

451 

0 

0

O 

0 

0

0 

0

0 

311 

545 

956 

1,320

1,170 

1,020 

784 

674 

735 

735

Nov.

765 

784 

674 

657 

654

654 

654 

646 

602 

598

608 

615 

612 

615 

615

615 

562 

536

*555 =.55

55t 

552 

549 

549 

558

558 

545 

552 

565 

555

Dec.

555 

552 

552 

555 

548

548 

561 

555 

548 

539

542 

b530 

b530 

D490 

b460

458 

467 

470 

476 

434

390 

404 

410 

410 

398

*336 

336 

443 

480 

492 

498

Jan.

501 

455 

b430 

b430 

b430

b430 

b430 

b430 

b430 

b430

D410 

b390 

b390 

b390 

b390

b390 

b390 

b390 

b390 

b385

*381 

381 

378 

367 

b344

b344 

b347 

b360 

b387 

b387 

b387

Feb.

b387 

b387 

b387 

b387 

b387

b360 

339 

334 

336 

334

328 

325 

312 

307 

310

312 

390 

*404 

392 

407

410 

413 

413 

404 

407

407 

404 

413

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949

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

Mar.

413 

413 

413 

422 

428

404 

449 

440 

434 

434

437 

434 

434 

428 

428

428 

431 

434 

434 

413

425 

416 

428

419 

387

395 

315 

110 

25 

25 

25

Apr.

323 

449 

428 

434 

431

498 

542 

622 

800 

911

927 

919 

900 

930 

969

1,090 

1,270 

1,350 

1,380 

1,380

1,470 

1,560 

1,720 

1,920 

1,910

1,770 

1,690 

1,920 

1,910 

1,830

Secondfoot-days

22,363 

18,114 

14,967

469,177

12,374 

10,396 

11,521 

34,253 

69,190 

74,730 

84,580 

79,560 

55,978

488,026

May

1,830 

1,830 

1,930 

2,020 

2,180

2,260 

2,210 

2,220 

2,210 

2,210

2,210 

2,210 

2,270 

2,240 

2,230

2,250 

2,240 

2,170 

2,260 

2,290

2,300 

2,260 

2,210 

2,300 

2,290

2,320 

2,430 

2,430 

2,450 

2,430 

2,500

Maximum

1,380 

784 

561

2,740

501 

413 

449 

1,920 

2,500 

2,540 

2,850 

2,780 

2,600

2,850

June

2,460 

2,510 

2,490 

2,450 

2,500

2,450 

2,470 

2,540 

2,520 

2,540

2,530 

2,530 

2,530 

2,510 

2,500

2,490 

2,470 

2,520 

2,510 

2,500

2,510 

2,500 

2,490 

2,480 

2,490

2,470 

2,470 

2,440 

2,430 

2,430

July

2,530 

2,580 

2,560 

2,580 

2,620

2,620 

2,660 

2,720 

2,720 

2,730

2,740 

2,760 

2,760 

2,740 

2,770

2,780 

2,760 

2,770 

2,760 

2,850

2,820 

2,790 

2,770 

2,760 

2,760

2,760 

2,780 

2,800 

2,720 

2,810 

2,800

Minimum

0 

536 

336

0

344 

307 

25 

323 

1,830 

2,430 

2,530 

2,430 

859

0

Aug.

2,780 

2,780 

2,780 

2,720 

2,680

2,680 

2,670 

2,580 

2,520 

2,550

2,540 

2,480 

2,450 

2,450 

2,430

2,430 

2,430 

2,460 

2,480 

2,520

2,540 

2,580 

2,580 

2,590 

2,580

2,550 

2,550 

2,550 

2,550 

2,540 

2,540

Mean

721 

604 

483

1,285

399 

371 

372 

1,142 

2,232 

2,491 

2,728 

2,566 

1,866

1,337

Sept.

2,560 

2,570 

2,560 

2,570 

2,580

2,600 

2,600 

2,590 

2,450 

2,330

2,260 

2,200 

2,090 

1,980 

1,780

1,690 

1,700 

1,690 

1,680 

1,670

1,480 

1,390 

1,160 

1,070 

1,080

984 

859 

885 

1,180 

1,740

Runoff In 

acre-feet

44,360 

35,930 

29,690

930,600

24,540 

20,620 

22,850 

67,940 

137,200 

148,200 

167,800 

157,800 

111,000

967,900

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNETJF RIVER AND SALMON PALLS CREEK 79 

South Side Twin Palls Canal at Milner, Idaho

Location. Water-stage recorder, lat. 42°31', long. 114°01', in sec. 29, T. 10 S., R. 21 

K., YOO feet downstream from head gates at Milner Dam.

Records available.--May 1909 to September 1950.

Extremes.--Maximum discharge during year, 3,770 second-feet July 28 (gage height, 10.54 

reet); minimum, 15 second-feet Oct. 21-24.

1909-50: Maximum daily discharge, 4,600 second-feet Aug. 12, 1918, including about 

1,200 second-feet wasted through spillway below station and returned to river; no flow 

Sept. 20, 1920.

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

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 Palls County.

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

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

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,530 

1,360 

1,240 

1,240 

1,330

1,290 

1,210 

1,120 

1,060 

954

862 

821 

818 

815 

835

818 

821 

828 

821 

534

15 

15 

15 

15 

316

818 

933 

711 

702 

684 

687

Nov.

654 

570 

576 

579 

582

579 

598 

618 

621 

626

379 

19 

19 

19 

229

582 

587 

526 

*499 

554

582 

587 

590 

590 

598

590 

587 

590 

590 

587

Dec.

587 

556 

534 

534 

534

534 

244 

582 

579 

618

536 

508 

544 

551 

518

464 

524 

497 

497 

482

484 

522 

541 

533 

498

*463 

426 

455 

502 

499 

489

Jan.

518 

489 

397 

423 

460

477 

479 

495 

480 

478

473 

495 

483 

472 

474

465 

458 

424 

446 

427

*419 

433 

431 

417 

388

413 

495 

488 

471 

469 

435

Feb.

442 

449 

445 

442 

466

473 

462 

471 

468 

473

466 

477 

449 

439 

445

445 

445 

*446 

412 

402

366 

405 

438 

410 

402

394 

394 

394

Month

Ooto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

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

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

Mar.

394 

399 

399 

402 

405

410 

407 

399 

392 

394

405 

425 

446 

454 

464

454 

373 

280 

278 

280

290 

368 

402 

143

179

24 

24 

24 

24 

24 

273

Apr.

472 

508 

489 

486 

502

576 

607 

646 

579 

590

584 

587 

672 

693 

693

693 

758 

866 

1,040 

1,350

1,610 

1,690 

1,700 

1,700 

2,010

2,480 

2,480 

2,370 

2,390 

2,390

Secondfoot -days

25,218 

15,307 

15,835

637,599

14,172 

12,220 

9,635 

34,211 

98,050 

101,440 

111,890 

110,530 

82,920

631,428

May

2,470 

2,600 

2,840 

2,660 

2,640

2,780 

2,810 

2,820 

2,800 

2,960

3,200 

3,150 

3,090 

3,080 

3,160

3,240 

3,230 

3,200 

3,240 

3,260

3,270 

3,310 

3,420 

3,520 

3,540

3,580 

3,610 

3,630 

3,640 

3,650 

3,650

Maximum

1,530 

654 

618

3,670

518 

477 

464 

2,480 

3.65O 

3,640 

3,720 

3,650 

3,650

3,720

June

3,640 

3,640 

3,520 

3,440 

3,460

3,460 

3,480 

3,53O 

3,500 

3,470

3,460 

3,450 

3,420 

3,410 

3,400

3,400 

3,380 

3,370 

3,310 

3,280

3,290 

3,240 

3,220 

3,190 

3,170

3,170 

3,170 

3,220 

3,330 

3,420

Minimum

July

3,440 

3,450 

3,450 

3,500 

3,560

3,610 

3,610 

3,610 

3,610 

3,610

3,600 

3,610 

3,610 

3,600 

3,610

3,610 

3,610 

3,650 

3,650 

3,610

3,610 

3,630 

3,630 

3,640 

3,650

3,650 

3,710 

3,720 

3,690 

3,680 

3,670

15 

19 

244

14

388 

366 

24 

472 

2,470 

3,170 

3,440 

3,480 

1,730

15

Aug.

3,650 

3,620 

3,600 

3,580 

3,550

3,540 

3,520 

3,520 

3,500 

3,480

3,480 

3,500 

3,520 

3,520 

3,520

3,530 

3,560 

3,570 

3,610 

3,610

3,620 

3,620 

3,600 

3,600 

3,580

3,560 

3,570 

3,580 

3,600 

3,610 

3,610

Mean

813 

510 

511

1,747

457 

436 

311 

1,140 

3,163 

3,381 

3,609 

3,565 

2,764

1,730

Sept.

3,620 

3,610 

3,610 

3,650 

3,640

3,630 

3,630 

3,580 

3,500 

3,470

3,280 

3,090 

2,980 

2,900 

2,860

2,710 

2,640 

2,510 

2,290 

2,150

2,020 

2,020 

2,060 

2,070 

2,050

1,980 

1,940 

1,890 

1,810 

1,730

Runoff In 

acre-feet

50,020 

30,360 

31,410

1,265,000

28,110 

24,240 

19,110 

67,860 

194,500 

201,200 

221,900 

219,200 

164,500

1,252,000

* Winter discharge measurement made on this day.

Note. Discharge computed from staff-gage readings Oct. 1 to Nov. 5, Feb. 26 to Mar. 3. Stagedlscharge relation affected by Ice Dec. 11-14, 20-28, Jan. 2 to Feb. 17.
80 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK

Devils Washbowl Spring near Kimberly, Idaho 

Location.--Water-stage recorder, lat. 42°35', long. 114°21', in NE£ sec. 4, T. 10 S., R.

400 feet downstream from Devils Washbowl Spring, half a mile upstream from 

mouth which is half a mile upstream from Twin Palls of Snake River ? and 3j miles north 

of Kimberly. Altitude of gage, 3,540 feet (from river-profile map).

Records available. April to September 1950.

Extremes.--Maximum discharge during period, 26.5 second-feet Aug. 4 (gage height, 1.93 

 feet); minimum, 18.5 second-feet May 13-15 (gage height, 1.74 feet).

Remarks. Records good. No diversion or regulation above station.

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

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Th

ber ............... ......................

lendar year

St......................................

; period ................................

Mar. Apr.

a20 

a20 

a20 

a2o 

a20

20 

20 

20 

20 

19.5

19 

19.5 

20 

20 

19.5

19 

19 

19 

19 

19

19 

19 

19

19 

19

19 

19 

19.5 

19 

19

Secondfoot -days

583.0 

590.0 

641.5 

701.0 

737.0 

714.5

-

May

19

19 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

18.5

19 

19 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

19.5 

20

Maximum

20 

20 

23.5 

24 

25.5 

24.5

-

June

20 

20 

19.5 

20 

20.5

21.5 

21 

20 

20 

20

a20 

a20.5 

a21 

a21 

21.5

22 

21 

22.5 

22 

21.5

22 

23 

22.5 

23.5 

23.5

22.5 

22 

22 

22.5 

22.5

Minimum

July

22.5 

22 

22.5 

21.5 

22

22 

21.5 

22 

22 

22.5

23.5 

a23 

a22.5 

a22.5 

a22

22 

22.5 

22.5 

22.5 

22.5

22.5 

23 

22.5 

23 

23

23 

22.5 

24 

23.5 

24 

24

19 

18.5 

19.5 

21.5 

22.5 

22.5

-

Aug.

24.5 

24 

24 

25 

24.5

24.5 

23.5 

24 

24.5 

24.5

24.5 

25.5 

25 

24

24'

23.5 

24 

23.5 

23 

23

23

22.5 

22.5 

22.5 

23

23 

23.5 

23.5 

23.5 

23.5 

23.5

Mean

19.4 

19.0 

21.4 

22.6 

23.8 

23.8

-

Sept.

23.5 

22.5 

22.5 

22.5 

23.5

23.5 

23.5 

24 

23.5 

24

24 

24 

24 

24 

24

24.5 

24 

24 

24 

24.5

24.5 

24 

24 

24 

24

24 

24 

24 

24 

24

Runoff In 

acre-feet

,160 

,170 

,270 

,390 

,460 

1,420

7,870

a No gage-height record; discharge estimated on basis of records for other Snake River springs 

stations.
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK 81

Blue Lakes Spring near Twin Falls, Idaho

Location.--Water-stage recorder, lat. 42°37', long. 114°28', in NjSE-J: sec. 28, T. 9 S., 

K. 17 E., at outlet of upper Blue Lake, 1.4 miles northwest of Perrine Memorial Bridge 

and 3^ miles north of Twin Falls. Altitude of gage, 3,300 feet (from Snake River profile map).

Records available. April to September 1950.

Extremes. Maximum discharge during period, 244 second-feet Sept. 3-13, 21-30; maximum 

gage height, 1.88 feet Sept. 21-30; minimum discharge recorded, 208 second-feet June 

5, 7-28; minimum gage height, 1.77 feet Apr. 20-26.

Remarks. Records good. No diversion or regulation above station.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Ma v

June 

July 

Augu 

Sept

Th

lendar year

uary. ...................................

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

3 period ................................

Mar. Apr.

aZIO 

a210 

aZIO 

a210 

aZIO

a215 

a215 

a215 

a215 

a215

-a220 

a220 

220 

220 

220

216 

216 

216 

216 

214

212 

212 

212 

212 

212

212 

216 

216 

216 

216

Secondfoot-days

6,439 

6,676 

6,276 

6,812 

7,164 

7,284

-

May

216 

216 

216 

216 

216

216 

216 

216 

216 

216

216

216 

216 

216 

220

216 

216 

216 

216 

216

216 

216 

216 

216 

216

212 

212 

212 

212 

212 

212

Maximum

220 

220 

212 

228 

240 

244

-

June

212 

212 

212 

212 

208

212 

212 

208 

208 

208

208 

208 

208 

208 

208

208 

208 

208 

208 

208

208 

208 

208 

212 

208

208 

208 

208 

212 

212

July

212 

216 

216 

216 

216

216 

216 

216 

216 

216

216 

216 

216 

216 

216

216 

216 

220 

224 

224

224 

224 

224 

224 

224

224 

224 

224 

228 

228 

228

Minimum

210 

212 

208 

212 

228 

240

-

Aug.

228 

228 

228 

228 

228

228 

228 

228 

228 

228

228 

228 

228 

228 

228

228 

228 

228 

232 

232

232 

236 

236 

236 

236

236 

236 

236 

236 

236 

240

Mean

215 

215 

209 

220 

231 

243

-

Sept.

240 

240 

244 

244 

244

244 

244 

244 

244 

244

244 

244 

244 

240 

240

240 

240 

240 

24O 

240

244 

244 

244 

244 

244

244 

244 

244 

244 

244

Runoff in 

acre-feet

12,770 

13,240 

12,450 

13,510 

14,210 

14, 450

80,630

a No gage-height record; discharge computed on basis of records for Box Canyon Spring.
82 TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK 

Rock Creek near Rock Creek, Idaho

Location.--Water-stage recorder, lat. 42°22', long. 114°18', In sec. 25, T. 12 S., R. 

IB~"E7, 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 1950. November I90y 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, 258 second-feet May 16 (gage height, 2.89 feet); 

minimum, 4.2 second-feet Dec. 25; minimum gage height, 0.65 foot Sept. 1-6.

1909-13, 1938-39, 1943-50: Maximum discharge observed, 429 second-feet May 21, 1912 

(gage height, 10.4 feet, site and datum then in use); minimum observed, 3.6 second-feet 

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 or no gage-height record, 

which are fair. Small ranch diversions above station.

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

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

9.0 

8.5 

8.5 

8.5

10

11 

12 

12 

12 

14

12 

12 

12 

12 

11

11 

11 

11 

12 

12

12 

12 

12 

11 

11

11 

11 

11 

11 

11 

11

Nov.

11 

11 

11 

11 

11

11 

11 

12 

16 

20

19 

16 

15 

14 

14

14 

14 

14 

14 

13

13

13 

13 

13 

13

13 

13 

13 

13 

13

Dec.

13 

13 

13 

13 

13

13 

13 

13 

13 

12

12 

*12 

12 

11 

11

12 

12 

12 

12 

9.5

b9 

b9

blO 

10 

7.2

10 

12 

10 

10 

10 

9.5

Jan.

10 

9 

b9 

b8 

b8

b8 

b9 

b9 

b9 

9.5

9.5 

9.5 

b8 

b8 

b7

b7 

b8 

bl4 

23 

21

25 

42 

37 

30 

b!4

blO 

b!5 

b!3 

b!2 

bll 

bll

Feb.

bll 

b9 

b8 

b!2 

23

24 

23 

21 

20 

19

18 

17 

17 

16 

*17

17 

18 

18 

18 

19

19 

18 

18 

21 

22

24 

26 

25

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

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

St..................... .................

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

Mar.

24 

23 

24 

24 

26

34 

32 

30 

28 

28

24 

21 

20 

20 

18

18 

24

27 

35 

45

46 

48 

46 

47 

50

48 

46 

*42 

39 

38 

44

Apr.

48 

62 

70 

69 

66

63 

62 

70 

71 

68

66 

66 

73 

83 

81

81 

87 

104 

109 

116

134 

145 

146 

136 

124

116 

118 

116 

110 

102

Secondroot-days

345.5 

402 

351.2

13,818.5

423.5 

518 

1,019 

2,762 

4,645 

1,949 

643 

301.7 

247.2

13,607.1

May

103 

99 

96 

96 

96

93 

95 

93 

92 

92

100 

116 

138 

175 

232

252 

233 

236 

213 

192

183 

183 

194 

194 

182

167 

154 

147 

140 

130 

123

Maximum

14 

20 

13

230

42 

26 

50 

146 

252 

118 

33 

13 

10

252

June

118 

112 

103 

95 

89

84 

89 

88 

81 

78

75 

72 

69 

66 

63

60 

57 

54 

52 

49

47 

45 

43 

41 

39

38 

37 

36 

35 

34

July

33 

32 

31

30 

29

28 

27 

26 

25 

24

23 

23 

21 

20 

20

18 

18 

18 

18 

17

17 

16 

16 

15 

14

14 

14 

14 

14 

14 

14

Minimum

8.5 

11 

7.2

5.7

7 

8 

18 

48 

92 

34 

14 

7.0 

6.6

6.6

Aug.

13 

12 

12 

13 

13

13 

12 

11 

10 

10

11 

10 

10 

10 

10

9.6 

9.2 

8.7 

8.3 

8.3

8.0 

8.0 

8.7 

8.7 

8.7

8.3 

8.0 

7.6 

7.3 

7.3 

7.0

Mean

11.1 

13.4 

11.3

37.9

13.7 

18.5 

32.9 

92.1 

150 

65.0 

20.7 

9.73 

8.24

37.3

Sept.

6.6 

6.6 

6.6 

6.6 

6.6

6.6 

7.0 

9.2 

9.6 

9.6

8.7 

8.3 

8.3 

8.3 

8.3

8.7 

9.2 

9.2 

8.7 

8.3

8.3 

8.3 

8.3 

8.0 

8.0

8.3 

8.7 

8.7 

9.6

10

Runoff In 

acre-feet

685 

797 

697

27,410

840 

1,030 

2,020 

5,480 

9,210 

3,860 

1,280 

598 

490

26,990

Peak discharge (base. 130 sec.-ft.).--Apr. 22 (9 a.m.) 148 sec.-ft.; May 16 (2 a.m.) 258 see.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note. No gage-height record Nov. 1 to Dec. 11, June 11 to July 10; discharge computed on basis of 

weather records, records for Salmon Falls Creek near San Jacinto, and flow during adjacent periods.
TRIBUTARIES AND DIVERSIONS BETWEEN PORTNEUF RIVER AND SALMON FALLS CREEK 83

Box Canyon Springs near Wendell, Idaho

Location.--Water-stage recorder, lat. 42°42'30", long. 114°48'45" In NE^ sec. 28, T. 8 S.,

 R. 14 E., 150 feet below a waterfall, about half a mile above mouth and three-quarters 

of a mile below source, and 1\ miles southwest of Wendell. Altitude of gage is 2,950 

feet (from topographic map).

Records available.--April to September 1950.

Extremes.--Maximum discharge during period, 480 second-feet Sept. 19, 20, 28, 29 (gage

 height, 1.90 feet); minimum, 374 second-feet Apr. 1, 4, May 12; minimum gage height recorded, 1.46 feet Apr. 4.

Remarks. Records excellent. No diversion or regulation above station. Discharge affected by variable surface waste from irrigation canals over rim rocks into springs above 

station. Field estimates of June 16 and Aug. 25 indicated this waste to be 2.4 

second-feet and 0.75 second-foot, respectively.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec,. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Th

lendar year

e period ...............................

Mar. Apr.

a374 

a375 

a376 

377 

382

384 

382 

387 

390 

384

392 

390 

390 

390 

387

384 

390 

387 

380 

382

384 

380 

380 

384 

384

382 

382 

382 

382 

380

Secondfoot-days

11,503 

11,878 

12,334 

12,904 

13,487 

13,844

-

May

382 

382 

382 

382 

382

384 

387 

387 

384 

380

377 

374 

377 

377 

382

380 

380 

380 

382 

380

380 

382 

382 

384 

384

387 

390 

390 

392 

392 

394

Maximum

392 

394 

424 

424 

443 

480

-

June

397 

394 

394 

394 

397

400 

402 

404 

407 

410

412 

412 

407 

407 

410

412 

417 

420 

420 

420

422 

422 

422 

424 

422

422 

420 

420 

414 

410

July

412 

412 

412 

412 

412

412 

414 

412

412 

412

412 

412 

412 

41.7 

417

417 

417 

417 

417 

417

417 

420 

417 

417 

420

420 

420 

424 

424 

424 

424

Minimum

374 

374 

394 

412 

424 

440

-

Aug.

424 

424 

424 

427 

430

430 

435 

437 

443 

440

440 

437 

435 

435 

435

435 

432 

435 

435 

435

435 

437 

435 

435 

437

440 

440 

440 

440 

440 

440

Mean

383 

383 

411 

416 

435 

461

-

Sept.

440 

440 

443 

443 

445

445 

448 

450 

453 

456

456 

458 

458 

461 

464

466 

469 

469 

475 

475

469 

466 

466 

472 

475

475 

475 

477 

480 

475

Runoff in 

acre -feet

22,820 

23,560 

24,460 

25,590 

26,750 

27,460

150,600

a No gage-height record; discharge computed on basis of discharge for adjacent period.
SALMON FALLS CREEK BASIN 

Salmon Palls Creek above upper Vineyard ditch, near Contact, Nev.

Location.--Water-stage recorder lat. 41°44', long. 114°52'30", near northwest corner 

sec. 5, T. 44 N., R. 63 E., three-quarters of a mile above former diversion point for 

upper Vineyard ditch, 1^ miles above present diversion dam, and 6 miles southwest of 

Contact.

Drainage area.--439 square miles.

Records available. October 1948 to September 1950. May 1914 to July 1915 at site, threequarters of a mile downstream.

Extremes. Maximum discharge during year, 741 second-feet May 24 (gage height, 4.21 feet); 

minimum, 20 second-feet Oct. 2, Aug. 28 to Sept. 4; minimum gage height, 1.26 feet 

Aug. 29, Sept. 1.

1914-15, 1948-50: Maximum discharge, 750 second-feet May 16, 1949 (gage height, 

4.31 feet); minimum, 16 second-feet Sept. 6, 1949 (gage height, 1.21 feet).

Remarks.--Records good. Many diversions above and below station for irrigation.

Rating table, water year 1949-50, except periods of Ice effect 

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

(Shifting-control method used Nov. 5 to Dec1 . 9)

Oct. 1 to Dec. 12

1.3 20

1.4 24

1.5 31

1.6

1.2

1.3

1.4

1.5

Dec. 13 to Sept. 30

1.7 54

2.0 90

2.3 135

2.6 190

2.9 262

3.3 386

3.7 532

4.2 737

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

n 3 

14 

15

16

11 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

21 

21 

22 

21 

22

22 

23 

24 

24 

26

i25 

24

L5 

24 

26 

27

28 

28 

28 

27 

27

27 

27 

28 

28 

27 

26

Nov.

*27 

27 

28 

28 

28

28 

30 

33 

32 

37

34 

31

30 

30 

30

30 

30 

30 

30 

29

29 

29 

30 

32 

31

32 

33 

32 

30 

30

Dec.

30 

30 

30

30 

29

28 

30 

30 

28 

b27

b25 

b26 

*29 

28 

29

30 

31 

31 

32 

b29

y-t

b27

b29 *1 

32 

31 

31 

29

Jan.

29 

b28 

b26 

b25 

b27

b29 

b29 

b29 

29 

29

b29 

b28 

b27 

b27 

b28

b29 

b31 

49 

524-"

'- 

-^ 

56 

51 

b40

b35 

40 

40 

b33 

b34 

b33

Feb.

b35 

b32 

b30 

b32 

b37

43 

45 

40 

37 

36

37 

34 

34 

*35 

38

43

40

 tu

40 

14

43 

43 

44 

46 

51

55 

63 

64

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949 

apy

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

Mar.

61 

61 

62 

66 

75

80 

75 

84 

75 

72

63 

58 

52 

63 

60

57 

60 

66 

75

76

73 

75 

72 

75 

81

75 

71 

*69 

63 

63 

67

Apr.

81 

119 

156 

157 

150

144 

149 

182 

201 

197

176 

174 

194 

241

244

226 

246 

302 

339 

352

404 

487 

498 

410 

355

317 

308 

330 

311 

270

Secondfoot-days

780 

910 

915

38,495

1,083 

1,161 

2,125 

7,720 

13,364 

9,127 

2,383 

800 

706

41,074

May

252 

259 

241 

231 

226

217 

199 

190 

190 

190

190 

197 

241 

330 

453

532 

591 

648 

644 

567

544 

575 

632 

690 

716

660 

599 

579 

591 

579 

611

Maximum

28 

37 

32

738

56 

64 

84 

498 

716 

640 

156 

36 

26

716

June

640 

599 

555 

487 

443

428 

464 

450 

366 

299

265 

254 

254 

257 

257

249 

254 

259 

244 

231

229 

246 

226 

217 

203

180 

156 

145 

138 

132

July

132 

156 

132 

122 

113

104 

107 

107 

107 

101

103 

91 

85 

81 

75

70 

65 

62 

58 

53

50 

49 

49 

46 

42

40 

40 

39 

36 

34 

34

Minimum

21 

27 

25

17

25

30 

52 

81 

190 

132 

34 

20 

20

20

Aug.

34 

32 

33 

36 

34

31 

31 

30 

30 

28

27 

26 

27 

27 

26

24 

25 

23 

22 

22

21 

21 

21 

22 

22

22 

21 

21 

20 

21 

20

Mean

25.2 

30.3 

29.5

105

34.9 

41.5 

68.5 

257 

431 

304 

76.9 

25.8 

23.5

113

Sept.

20 

20 

20 

20 

21

21 

23 

24 

26 

26

26 

25 

24 

24 

23

23 

24 

24 

25 

25

24 

23 

25 

24 

24

24 

24 

24 

25 

25

Runoff in 

acre-feet

1,550 

1,800 

1,810

76,350

2,150 

2,300 

4,210 

15,310 

26,510 

18, 100 

4,730 

1,590 

1,400

81,460

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SALMON FALLS CREEK BASIN 85 

Salmon Palls Creek near San Jacinto, Nev.

Location.--Water-stage recorder, lat. 41°57', 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 1950. 

Average discharge. 36 years (1910-16, 1919-20, 1921-50), 129 second-feet.

Extremes.--Maximum discharge during year, 799 second-feet May 19 (gage height, 7.57 feet); 

minimum, 9 second-feet Sept. 1-4, 6.

1909-16, 1918-50; Maximum discharge, between, 2,060 and 2,420 second-feet Feb. 24, 

1943 (gage height exceeded range of recorded, 10.20 feet, but was not more than 1.2 

feet higher), from rating curve extended above 1,400 second-feet; minimum, 2.8 secondfeet Nov. 13, 1947, during channel improvement work upstream.

Remarks. Records good except those for Apr. 20 to May 10, which are fair, and those 

below 20 second-feet, which are poor. 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

39

40 

39 

38 

39

40 

44 

47 

47

52

54 

51 

50 

49 

49

48 

47 

48 

51 

54

55 

55

55 

55 

55

54 

54 

53 

53 

53 

52

Nov.

52 

53 

53 

54

55

55 

55 

56 

60 

63

65 

62 

59 

58 

57

58 

57 

57 

57 

56

56 

55 

55 

58 

60

58 

57 

58 

59 

59

Dec.

59 

58 

57 

56 

56

54 

60 

59 

57

51

33 

36

52 

51 

52

57 

54

60 

60 

51

53 

56

61 

55 

43

53 

59

61 

59 

59 

54

Jan.

53 

53 

36 

34 

42

49 

49

48 

50 

49

50 

47 

40 

40 

43

43

51 

69 

83

91

88 

94 

102 

92

62

51 

72 

79 

57

62 

60

Feb.

63 

50 

43 

58 

77

82 

85 

81 

77 

74

75 

71 

74 

75 

77

106 

88 

87 

89 

94

88 

85

86 

91 

105

106 

122 

125

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

124 

122 

123 

124 

137

152 

155 

164 

156 

149

134 

116 

115 

121 

124

119 

118 

133 

145 

156

166 

166 

164 

166 

179

168 

165 

158 

150 

143 

156

Apr.

181 

209 

272 

318 

306

297 

289 

316 

365 

382

351 

327 

329 

375 

410

429 

426 

429 

490 

534

557 

621 

681 

663 

554

495 

466 

468 

471 

457

Secondfoot -days

1,520 

1,717 

1,686

58,434

1,839 

2,334 

4,468 

12,468 

17,466 

1O,348 

2,872 

897 

670

58,285

May

421 

423

421 

410 

418

423 

413

398 

375 

363

363 

375

400 

442 

534

640 

712 

760 

787 

766

715 

686 

704 

736 

760

76C 

718 

660 

643 

634 

606

Maximum

55 

65 

61

935

102 

125 

179 

681 

787 

637 

151 

49 

41

787

June

629 

637

603 

564 

504

457 

460 

489 

470

410

356 

317 

299 

288 

285

274 

268 

274 

274 

263

iy263 

257 

242

230

205 

186 

172 

162

July

145 

148 

151 

142 

134

125 

120 

122 

123 

122

122 

116 

107 

100 

92

84

80 

76 

73 

69

66 

63 

62 

61 

58

56 

54 

53 

52 

49 

47

Minimum

38 

52 

33

10

34 

43

115 

181 

363 

162 

47 

10 

9

9

Aug.

47 

47 

46

43 

49

45 

41 

39 

38 

36

36 

36 

36 

36 

34

27 

24 

27 

26

18

16 

16 

14 

16 

16

16 

16 

14 

16 

11 

10

Mean

49.0 

57.2 

54.4

16O

59.3 

83.4 

144 

416 

563 

345 

92.6 

28.9 

22.3

160

Sept.

10 

10 

10 

10

10

9 

10 

13 

14 

17

18 

18 

19 

19 

19

23 

23 

23

25 

27

27 

28

30 

28 

31

39 

40 

39 

41

40

Runoff In 

acre-feet

3,010 

3,410 

3,340

115,900

3,650 

4,630 

8,860 

24,730 

34,640 

20,520 

5,700 

1,780 

1,330

115,600
86 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 0 44', in sec. 

18 (revised), 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 1950.

Extremes. Maximum contents observed during year, 65,600 acre-feet June 12-15 (gage

height, 38.1 feet); minimum observed, 8,155 acre-feet Oct. 1-4 (gage height, 6.1 feet).

1922-50: Maximum contents observed, 123,700 acre-feet May 30, 31, 1922 (gage 

height, 61.1 feet); minimum observed, 125 acre-feet Sept. 21 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 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

8,155

8,155

8,155

8,155

8,300

8,300

8,300

8,445

8,445

8,590

8,735

8,735

8,880

8,880

8,880

8,880

8,880

9,025

9,025

9,025

9,170

9,170

9,170

9,170

9,170

9,460

9,605

9,750

9,895

9,895

10 , 040

Nov.

10,040

10,040

10,040

10,040

10,040

10 , 040

10,040

10,040

10,040

10,180

10,180

10,180

10,180

10,330

10,330

10,480

10,480

10,480

10,620

10,620

10,760

10,760

10,760

10,910

11,060

11,060

11,200

11,340

11,340

11,490

Dec.

11,490

11,640

11,640

11,78O

11,780

11,920

12,070

12,220

12,220

12,350

12,350

12,350

12,350

12,500

12,500

12,500

12,500

12,500

12,640

12,640

12,640

12,640

12,640

12,780

12/780

12,930

12,930

13,080

13,080

13,220

13,220

Jan.

13,360

13,360

13,510

13,510

13,510

13,660

13,660

13,800

13,800

13,950

13,950

13,950

13,950

13,950

13,950

14,100

14,100

14,250

14,250

14,400

14,700

15,000

15,000

15,150

15,300

15,450

15,600

15,750

16,050

16,350

16,650

Feb.

16,950

17,100

17,250

17,550

17,550

17,550

17,550

17,550

17,550

17,550

17 , 550

17,550

17,700

17,700

17 , 850

18,000

18,150

18,300

18,460

18,620

18,780

18,940

19,100

19,260

19,420

19,580

19,740

19 , 900

_

-

Mar.

20,060

20,220

20,540

20,860

21,020

21,340

21,500

21,670

22,010

22,350

22,690

23,200

23,370

23,540

23,540

23,710

24,050

24,220

24,390

24,560

25,070

25,240

25,580

25,750

26,090

26,430

26,770

26,940

27,110

27,450

27,620

Apr.

27,790

27,960

28,300

28,640

28,980

29,660

30,340

31,020

31,530

32,070

32,620

33,360

33,920

34,480

35,030

35,770

36,700

37,440

38,180

38,920

39,840

40,580

41,500

42,430

43,400

44,400

45 , 400

46 , 400

47,200

48,000

May

48,800

49,400

50,000

51,000

52,000

53,000

53,400

53,600

53,800

54,200

54,800

55 , 400

56,000

56,600

57 , 440

58,300

58,950

59,380

59,810

60,460

61,100

61,740

61,960

62,390

62,820

63,250

63,460

63,670

63,880

64,100

64,320

June

64,530

64,740

64,740

64,960

64,960

64,960

64,960

65,180

65,180

65,390

65,390

65,600

65,600

65,600

65,600

65,390

65,180

64,960

64,740

64,320

63,670

63,460

63 , 040

62,600

62,180

61,740

61,320

60,880

60,460

60,020

July

59,600

59,160

58,740

58,090

57,660

57,020

56,200

55,400

54,400

53,400

52,400

51,400

50,600

49,800

49,000

48,200

47 , 400

46,600

45,600

44,600

43 , 800

42 , 800

41,880

40,950

40,020

39,100

38,180

37,060

36,140

35,030

34,100

Aug.

33,360

32,620

31,880

31,190

30,510

29,830

29,150

28,470

27,960

27,450

26,770

26,090

25,410

24,900

24,220

23,540

22,860

22,180

21,500

20,860

20,060

19,420

18,460

17,550

16,800

16,050

15,300

14,550

13,800

13,080

12,220

Sept.

11,340

10,620

9,895

9,460

9,460

9,460

9,460

9,460

9,460

9,460

9,460

9,460

9,460

9,315

9,315

9,315

9,315

9,315

9,315

9,315

9,315

9,315

9,315

9,315

9,460

9,460

9,460

9,460

9,460

9,460

-

Monthly gage height and contents, year October 1949 to September 1950

Date

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

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

Calendar year 1949 .......

Apr . 30 .............. .....

June 30

July 31. ...................

Aug. 31...... ..............

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

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

Gage height 

(feet)

8.4

9.6

-

7.0

-

Contents 

(acre-feet)

11,490

13,220

-

9,460

-

Change In contents 

during month 

(acre-feet)

+1,450

+1,730

-290

-E,760

+1,450
SAIMON FALIS CREEK BASIN 87

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. 15 

E., half a mile downstream from Salmon River Canal Co. reservoir and 7 miles west of 

Rogerson.

Records available.--April 1937 to September 1950.

Extremes.--Maximum discharge during year, 528 second-feet July 9 (gage height, 6.87 feet); 

no flow during long periods.

1937-50: 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 irrigation 

oi' lands in Salmon River Canal Co. project.

Cooperation.--Gage-height record furnished by Salmon River Canal Co.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 27 ' 

28 

29 

30 

31

Oct. Nov.

0 

140 

131

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

Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar. Apr.

Secondfoot -days

0 

271

0

44,981

0 

0 

0 

0 

6,279 

10,884 

14,750 

11,296 

1,050

44,530

May

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

230 

284 

308 

336 

343

341 

369 

g401 

g428 

g449

g452 

g455 

g460 

g465 

g473 

485

Maximum

0 

140 

0

530

0 

0 

0 

0 

485 

483 

523 

411 

396

523

June

483 

479 

456 

415 

409

g399 

g393 

g385 

g342 

g281

g270 

g256 

g261 

g268 

g296

g322 

g336 

g349 

g375 

g405

411 

434 

411 

377 

369

345 

336 

331 

338 

352

Minimum

July

363 

370 

385 

403 

434

463 

482 

513 

516 

523

508 

488 

494 

502 

498

494 

501

511 

509 

505

498 

488 

499 

521 

512

492 

488 

480 

462 

432 

416

0 

0 

0

0

0 

0 

0 

0 

0 

256 

363 

311 

0

0

Aug.

392 

388 

380 

369 

341

332 

321 

3E3 

322 

326

330 

324

311 

316 

323

334

356 

364 

383

390

394 

403 

g411 

g395 

g395

g395 

g395 

g395 

g394 

395 

399

Mean

0 

9.0 

0

123

0 

0 

0 

0 

203 

363 

476 

364 

35.0

122

Sept.

396 

380 

274

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

Runoff In 

acre-feet

0 

538

0

89,220

0 

0 

0 

0 

12,450 

21,590 

29,260 

22,410 

2,080

88,330

g Computed from graph based on gage readings and gate changes reported by canal company.
MOD LAKE BASIN

Mud Lake near Terreton, Idaho

Location.--Water-stage recorder, lat. 43°53', long. 112°24 I , in SW^- see. 1, T. 6 N., R. 

34 hi., 2 miles north of First Owsley pump house, Z\ miles northeast of Terreton, and 

14 miles southwest of Hamer; supplemental staff gage at pump house. Datum of each 

gage is 4,774.99 feet (revised) above mean sea level (unadjusted).

Records available.--April 1921 to September 1950.

Extremes. Maximum contents during year, 42,200 acre-feet May 3, 4; maximum gage height, 

a.iia feet May 7 (affected by wind); minimum daily, 4,880 acre-feet Oct. 6; minimum gage 

height, 0.10 foot Oct. 5 (affected by wind).

1921-50: Maximum contents observed, 61,660 acre-feet May 5, 1923 (gage height, 9.20 

feet); practically no contents Oct. 1 to Nov. 15, 1937 (at 4 p.m. Nov. 15 water was 

released from Camas Creek 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 and surface inflow from North 

Lake. For complete description of Mud Lake region see Water-Supply Paper 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 leading to First Owsley pumping plant. Bypass was not used during 1950. 

Other irrigation diversions are made by various means from adjacent lakes and wells 

and Camas Creek above 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. High winds occasionally disturb the recording of lake stages.

Cooperation. Water-stage recorder inspected by Water District No. 66 and supplemental 

starr-gage readings furnished by Owsley Canal Co.

Contents, in acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. .

5,280

5,160

5,010

5,010

04,940

4,880

4,920

5,100

5,050

5,160

5,320

5,440

5,530

5,580

5,580

5,630

5,800

6,100

6,280

6,300

6,430

6,640

6,830

7,020

6,910

7,240

7,440

7,650

7,830

7,950

8,080

Nov.

8,200

8,430

8,590

8,760

8,950

9,090

9,360

9,260

9,640

10,100

10,300

10,500

10,700

10,800

10,900

11,000

11,100

11,300

11,500

11,600

11,800

12,000

12,100

12,300

12,500

12,700

12,600

13,000

13,200

13,400

-

Dec.

13,500

13,700

13,900

14,100

014,300

14,500

14,800

15,100

15,400

15,600

15,800

16,100

16,300

16,400

16,600

16,900

17,200

17,500

17,700

17,900

18,100

18,400

18,600

18,900

19,100

19,400

19,600

19,700

19,800

f 19, 900

f 20, 100

Jan.

f20,300

-

_

-

-

_

-

_

_

-

_

_

-

-

-

h24,200

-

_

-

-

.

_

_

_

-

_

_

_

_

-

b.27,300

Feb.

.

-

_

-

-

.

_

_

_

-

.

_

_

-

h30,500

.

_

_

_

-

h31,700

31,900

32,000

32,100

32,300

32,500

32,600

32,800

_

_

-

Mar.

32,900

33,100

33,300

33,400

33,800

34,000

34,200

34,300

34 , 400

34,700

34,800

35,000

35,200

35,400

35,500

35,400

35,700

36,000

h36,800

1136,800

h37,100

h37,400

37,100

37,200

37,500

37,800

37,900

38 , 200

38,300

38 , 500

38,600

Apr.

38,700

38,800

38,900

39,200

39,300

39,500

39,500

39,500

39,900

39,800

39,800

39,800

39,800

39,800

39,900

40,000

40,000

40,000

40,000

40,200

40,300

40,200

40 , 400

40,500

40,700

41,000

41,200

41,500

41,300

41,400

-

Hay

41,700

41,700

41,900

42,100

41,800

41,800

42,000

41,700

41,200

41 , 100

40,800

40,500

40,000

39,500

39,100

38 , 500

37,900

37,500

37,100

36,600

36,200

35,800

35,200

35,000

34,400

33,800

33 , 400

33,200

32,600

32,100

31,600

June

31,200

31,000

30,200

29,900

29,700

29,100

29,100

29,200

29,600

29,700

29,700

29,aoo

29,900

29,900

29,900

30,000

30,000

29,800

29,700

29,100

28,400

28,000

27,500

26,900

26,400

26,000

25,600

25,000

24,500

23,900

-

July

23,300

22,800

22,200

21,600

21,000

20,400

19,900

19,600

19,200

18 , 900

18,800

18 , 600

18,300

18,200

18,000

17,900

17,700

17,400

c!7,000

16,500

16,100

15,700

15,200

14,900

14,500

14,200

13,700

13,100

012,800

12,300

11,900

Aug.

11,400

11,000

010,500

10,000

09,810

9,320

8,920

8,660

8,360

8,080

7,800

7,590

f '7 ,420

-

h7,190

_

-

_

-

-

_

-

_

..

-

_

_

-

_

-

h6,200

Sept.

_

-

_

-

-

_

-

_

_

-

_

-

-

re, 10

6,10(

6,12C

6,08C

6,12

6,20C

6,25C

6,28C

6.33C

6.38C

6.46C

6.49C

06.51C

6.51C

6,62C

6,75C

6,72C

-

wind.

f Contents computed from partly estimated gage-height record.

h Contents computed from staff-gage reading at supplemental gage (not affected by pump operation) 

or at recorder site.

Monthly gage height and contents, water year October 1949 to September 1950

Date

Oct. 31. ..................

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

Calendar year 1949. .....

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

Water year 1949-50. .....

Gage height 

(feet)t

0.94 

1.96 

3.42 

4.84

-

h6.12 

7.01 

7.87 

8.29 

6.78 

5.47 

2.99 

hi. 30 

1.54

-

Contents 

(acre-feet)

5,320 

8,110 

13,500 

20,200

-

27,300 

32,800 

38,600 

41,600 

31.400 

23,600 

11,700 

6,200 

6,830

-

Change in contents 

during month 

(acre-feet)

+2,790 

+5,390 

+6,700

-800

+7,100 

+5,500 

+5,800 

+3,000 

-10,200 

-7,800 

-11,900 

-5,500 

+630

+1,510

t Qage height at 12 p.m. except for staff-gage readings, 

h Staff-gage reading at supplemental gage (not affected by pumps) or at 

recorder site.
MUD LAKE BASIN 89 

Cams Creek at Eighteenmile shearing corral, near Kllgore, Idaho

Location.--Water-stage recorder, lat. 44°18, long. 111°52', In sec. 7, T. 11 N., R. 39 E., 

at bridge on county road at Eighteenmile shearing corral, just downstream from West 

Cams Creek, 7 miles south of Kilgore, and 18j miles northeast of Dubois.

Drainage area.--210 square miles.

Records available.--May 1937 to September 1950 (no winter records prior to 1947).

Extremes.--Maximum dally discharge, 700 second-feet Apr. 21; maximum gage height recorded, 

4.98 feet Apr. 18, 19 (ice jam); minimum discharge not determined, occurred during 

period of Ice effect.

1937-50: Maximum discharge, 1,340 second-feet Apr. 21, 1946 (gage height, 6.08 

feet), from rating curve extended above 500 second-feet; no flow for short periods in 

February 1949.

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 and stock water.

Cooperation.--Water-stage recorder inspected occasionally by Water District No. 66.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

20 

20 

18 

18 

17

17 

17 

18 

18 

20

22 

22 

20 

18 

18

18 

18 

20 

18 

20

20 

20 

20 

22 

22

22 

22 

22 

23 

24 

20

Nov.

20 

20 

20 

20 

20

20 

20 

22 

26 

30

28 

26 

23 

22 

22

22 

22 

21

21 

20

19 

19 

18 

20 

22

22 

24 

23 

22

21

Dec.

20

13 

(*)

Jan.

13

Feb.

13

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Bare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

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

Bar.

13 

(*)

Apr.

15 

17 

20 

23 

27

31 

36 

43

50 

60

70 

85 

110 

150 

2OO

300 

400 

520 

580 

640

700 

580 

400 

300 

270

*h235

250 

225 

170 

130

Secondfoot-days

614 

655 

473

2O,O53

403 

364

403 

6,637 

6,536 

5,681 

1,095 

736 

554

24,151

May

150 

150 

110 

95

105

110 

102 

118 

14O

163

189 

213 

235 

278

328

322

312 

318 

315 

219

171

168 

201

260 

260

210 

198 

238 

315 

303 

260

Maximum

24 

30

607

700 

328 

433 

59 

36 

26

700

June

244 

241 

241 

213 

195

201 

241 

380 

433 

309

219 

183 

180 

177 

168

166 

152 

143

150

166

165 

136 

123 

127 

175

173 

127 

101 

85 

71

Minimum

July

59 

59 

52 

46 

45

44 

44 

44 

44 

42

44 

44 

41 

38 

34

33 

32

28 

28 

26

24 

24

26 

26 

24

22 

22 

24 

24

26 

26

17

18

-

15

95 

71 

22 

12 

12

-

Aug.

24 

24 

2S 

30 

36

36 

33

31 

28 

26

24 

24 

24 

24 

24

24 

24 

24 

20 

17

20 

22 

24 

22 

20

22 

22 

20 

15 

14 

12

Mean

19.8 

21.8 

15.3

55.0

13.0 

13.0 

U. 0 

221 

211 

189 

55.3 

23.7 

18.5

66.2

Sept.

12 

14 

14

15 

15

14 

14 

14 

18 

25

26 

23 

22 

20

20

20 

20 

20 

20 

20

19 

18 

18 

18 

18

18 

19 

19 

19 

22

Runoff in 

acre-feet

1,220 

1,300 

938

39,790

799 

722 

799 

13,160 

12,960 

11,270 

2,170 

1,460 

1,100

47,900

* Winter discharge measurement made on this day.

h Computed from staff-gage reading.

Note.--Stage-discharge relation affected by ice Nov. 11, 18-22, Nov. 26 to about Apr. 20. No gageheight record Jan. 5 to Mar. 20, Mar. 22 to Apr. 10, Apr. 21-25, Apr. 27 to May 3, Sept. 5-12; discharge computed on basis of 1 discharge measurement, weather records, and records for other streams 

in Mud Lake Basin.

253646 O - 53 - 7
90 MUD LAKE BASIN

Camas Creek at Camas, Idaho

Location. Water-stage recorder, lat. 44°00', long. 112°13', in E^SE^ sec. 21, T. 8 N., R. 

36 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 1950. 

Average discharge.--24 years (1926-50), 24.6 second-feet.

Extremes.--Maximum discharge during year, 496 second-feet Apr. 22 (gage height, 4.69 feet); 

no flow for long period in October.

1925-50: Maximum discharge, 900 second-feet probably May 3, 1938 (gage height, 3.98 

feet, datum then in use, from floodmark), from rating curve extended above 400 secondfeet; no flow during periods in many years.

Remarks. Records good except those below 10 second-feet, which are fair, and those for 

periods of ice effect or no gage-height record, which are poor. Diversions above and 

below station for irrigation and stock water.

Cooperation.--Gage-height record collected in cooperation with Water District No. 66 and 

eight winter field estimates furnished by that district.

Revisions (water years).--W 813: 1935. W 1123: 1947.

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

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

o

0

o

0 

0

0

o 

0 

o 

0

0

0 

0 

O 

0

o

0 

o

0

0

.5 

1.1 

.8 

1.5 

l.S

2.9 

2.9 

3.2 

2.9 

2.2 

3.7

Nov.

3.5 

1.6 

1.3 

1.2 

1.3

1.3

1.5 

*1.8 

2.7 

7.2

5.6 

4.9 

4.5 

3.9 

3.4

3.0 

2.7 

2.4 

2.2 

1.3

1.8 

2.4 

3.5 

4.2 

2.7

4.2

5 

5 

5 

5

Dec.

p. 5

(t) 

. ( *1

(t)

Jan.

(t) 

4

(t)

Feb.

(t) 

4

(*) 

(t)

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

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

lendar year 1949 

ai*y

uary. ...................................

ter year 1949-5O ...............

Mar.

4 

(t)

5.5 

(»)

(t)

Apr.

6 

7 

9

11

15

19 

h23 

27 

32 

38

45 

55 

65 

75 

h90

120 

180 

250 

324 

355

398 

431 

372 

242 

*f!75

f!69 

153 

f!66 

120 

80

Secondfoot -days

23.5 

96.1 

134

10,270.3

124 

112 

151.0 

4,052 

3,764 

3,222 

523.8 

298.7 

160.6

12,661.7

May

f90 

f!09 

102 

88 

S2

87 

90 

83 

95

105

110 

118 

127 

130 

f!51

f!71 

f!73 

175 

h!77 

170

120 

1OO 

100 

110 

h!40

130 

109 

108 

122 

154 

138

Maximum

3.7 

7.2

402

431 

177 

216 

38 

18 

15

431

June

126 

124 

126 

120 

108

101 

108 

134 

216 

211

151 

118 

106 

106 

103

101 

98 

90

86 

91

96 

91 

77 

76 

S2

102 

95 

72 

59 

48

July

3S 

32 

32

30 

24

22 

24 

20 

19

18

17 

17 

19 

26 

21

18 

16 

14 

10 

f9.2

8.3 

6.8 

6.0 

7.2 

11

11 

8.8 

7.9 

8.3 

9.3 

13

Minimum

o 

1.2

0

6 

82 

48 

6.0 

4.5 

.4

0

Aug.

15 

13 

12 

12 

11

15 

18 

17 

15 

13

11 

10 

9.8 

11 

11

11 

9.S 

7.9 

6.8

6.4

7.9 

5.3 

4.5 

5.3 

6.S

6.4 

6.0 

5.3 

5.3 

5.3 

4.9

Mean

O.76 

3.20 

4.3

2S.1

4.O 

4.0 

4.87 

135 

121 

107 

16.9 

9.64 

5.35

34.7

Sept.

2.4 

1.8 

1.1 

.4

.4

.5 

.5 

.4 

1.2 

4.5

12 

15 

12 

10 

8.8

.9 

.5 

.9 

.5 

.2

.5

.6 

.9 

.3

.9 

.2 

.7 

.2

.5

Runoff In 

acre-feet

47 

191 

266

20,360

246 

222 

300 

8,040 

7,470 

6,390 

1,040 

592 

319

25,120

* Winter discharge measurement made on this day.

t Field estimate by watermaster for Water District No 66 made on this day.

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

h Computed on basis of staff-gage reading.

Note. Stage-discharge relation affected by Ice Nov. 13-17, 27-29, Dec. 1 to about Apr. 5. No 

gage-height record Dec. 5 to Apr. 18, Apr, 29, 3O, May 18-26 except staff-gage readings as noted; 

discharge computed on basis of 8 field estimates, 3 winter discharge measurements, weather records, 

and records for other stations In Mud Lake Basin.
MUD LAKE BASIN 91

Beaver Creek at Spencer, Idaho

Location.--Staff gage, lat. 44°21', long. 112°11', in NE^ sec. 23, T. 12 N., R. 36 E., at 

nignway 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 1950 (no winter records 1942-50).

Extremes. Maximum discharge observed during year, 377 second-feet Apr. 13, from rating 

curve extended above 140 second-feet; maximum gage height observed, 5.60 feet Apr. 2 

(ice jam); minimum discharge observed, 5.0 second-feet Sept. 2, 7, 7; minimum gage 

height observed, 1.20 feet Sept. 26, 28, 29.

1940-50: 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 ice effect or no gage-height record, 

wnicn are poor. Gage read twice daily. Several ranch diversions above station.

Rating tables, water year 1949-50, except periods of Ice effect 

Tgage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Apr. 13-17, Sept. 19-30)

Oct. 1 to Apr. 17 Apr. 18 to Sept. 30

2.0 

2.2 

2.4

3.0 

3.5 

4.0 

4.7

107

168

235

340

5.5

8.5

12

2.1 

2.3 

2.7 

3.1 

3.5

138

188

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

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

12 

8.7 

9.4 

8.7

9.4 

9.0 

12 

12 

14

20 

16 

15 

14 

14

13 

12 

16 

b20 

20

20 

19 

20 

21 

20

20 

19 

20 

20 

16 

15

Nov.

14 

14 

16 

14 

14

13 

14 

19 

*22 

16

16 

16 

16 

15 

14

14 

15 

20 

20 

b20

b20 

b!9 

16 

16 

18

22 

23 

21 

20 

16

Dec.

b!5 

b!4 

b!3 

b!3 

b!4

b!4

Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

June 

July 

Augu 

Sept

Ha

ber. ....................................

mber 1-6 

lendar y 

ary

ear

ter year .......................

Mar. Apr.

a35 

b50 

b40 

b40 

b50

b60 

88 

87 

70 

107

169 

218 

345 

269 

241

243 

274 

188 

160 

157

180 

167 

126 

58 

*70

70 

81 

74 

66 

56

Secondfoot -days

483.2 

513 

83

-

3,839 

2,271 

1,621 

648 

408.9 

270.0

-

May

81

76 

69 

79 

69

58 

57 

58 

57 

58

60 

65 

71 

83 

92

90 

93 

95 

84 

79

70 

79 

78 

76 

79

69 

69 

80 

70 

69 

58

Maximum

21 

23 

15

-

345 

95 

94 

50 

24 

32

-

June

58 

58 

58 

58 

58

54 

48 

91 

91 

64

58 

50 

55 

48 

47

46 

44

44 

52 

48

46 

39 

37 

71 

94

69 

46 

34 

30 

25

July

22 

21 

20 

20 

37

28 

27 

50 

46 

37

24 

21 

21 

16 

16

16 

15 

14 

13 

12

12 

12 

15 

16 

16

16 

16 

16 

20 

17 

16

Minimum

8.7 

13 

13

-

35 

57 

25 

12 

7.6 

5.0

-

Aug.

15 

13 

12 

21 

24

18 

16 

14 

14 

15

15 

16 

15 

14 

14

14

12 

11 

12 

12

11 

11 

12 

11 

11

11 

10 

9.9 

9.2 

8.2 

7.6

Mean

15.6 

17.1 

13.8

-

128 

73.3 

54.0 

20.9 

13.2 

9. 00

-

Sept.

5.8 

5.2 

5.5 

5.5 

5.5

5.5 

5.2 

5.0 

8.5 

32

15 

13 

10 

11 

11

12 

11 

9.9 

8.8 

7.6

7.3 

7.0 

7.6 

8.2 

8.5

7.0 

7.3 

6.4 

6.7 

11

Runoff In 

acre -feet

958 

1,020 

165

-

7,610 

4,500 

3,220 

1,290 

811 

536

-

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis 

Dubols.

b Stage-discharge relation affected by Ice.

if weather records and records for station at
92 MUD LAKE BASIN

Beaver Creek at Dubols, Idaho

Location. --Water-stage recorder, lat. 44°11', long. 112°14', In NWij sec. 21, T. 10 N. , R. 

 3b i!. , half a mile north of Dubois.

Drainage area.--220 square miles.

Records available.--April 1921 to September 1950.

Average discharge.--23 years (1921-24, 1928-29, 1931-50), 16.7 second-feet.

Extremes.--Maximum discharge during year, 357 second-feet Apr. 14 (gage height, 2.89 feet): 

no now for long periods.

1921-50: Maximum discharge, 858 second-feet Apr. 7, 1930; maximum gage height, 

about 6.5 feet Mar. 16, 1926; no flow during long periods.

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

ana those below about 5 second-feet, 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24

25

26 

27 

28 

29

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.1

4.5 

4.3 

4.1

1

Nov.

0 

0 

0 

0 

0

0 

0 

4 

6 

*6.4

4.2 

0 

*.l 

.6 

.1

0 

0 

0

0 

0

0 

0 

.4 

1.4 

1.0

1.4 

2.5 

1.6 

1.3 

0

Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

*0

0 

0 

0 

0 

0

0 

*0 

0

3

(t)

Jan.

(t) 

(t)

Feb.

(t)

(*) 

(t)

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

her........ .............................

lendar year 1949

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

Mar.

» 5 

(t)

, ( *S

Apr.

25 

35 

30 

30 

35

40

85 

85 

70 

100

126 

150 

202 

280 

232

225 

269 

180 

155 

155

170 

160 

120 

50 

*56

52 

55 

60 

40 

43

Secondfoot-clays

16.0 

31.0 

S3

5,802.3

62 

56 

206 

3,315 

1,539 

1,030 

270.9 

69.9 

42.1

6,660.9

May

h43 

60 

56 

54 

60

54 

48 

48 

48 

48

43

50 

58 

h60 

58

56 

52 

56 

60 

49

43 

40 

42 

46 

46

41 

43 

46 

46 

43 

37

Maximum

4.5 

6.4

200

280 

60 

83 

48 

13 

18

280

June

34

34 

37

28

26 

30 

83 

77 

56

40 

32 

30 

28 

27

25 

22 

20 

28 

29

£6

25 

21 

26 

68

56 

34 

24 

18

14

Minimum

July

11 

9.7 

7.6 

6.0 

12

16 

12 

33 

48 

20

18 

14 

8.8 

6.8 

5.1

3.8 

3.1 

2.4 

2.5 

1.0

0

.6 

2.8 

4.5 

3.0

1.7 

1.7 

2.3 

2.4 

6.4 

4.7

0 

0 

0

0

25 

37 

14 

0 

0 

0

0

Aug.

3.5

2.0 

.9 

1.2 

13

12 

6.2 

4.2 

2.3 

1.4

1.2 

2.1 

5.7 

4.7 

4.0

2.4 

1.2 

.7 

.2 

.4

.3 

.1 

0 

0 

0

0

o'

0 

0 

0

Mean

0.5 

1.03 

.7

15.9

2.0 

2.0 

6.6 

110 

49.6 

34.3 

8.74 

2.25 

1.40

18.2

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0

IB

6.8 

3.5 

1.6 

.6 

.6

4

3 

2 

1 

0

0 

0 

0 

0

0

0 

0 

0 

0

1

Runoff In 

acre-feet

32 

61 

46

11,510

123 

111 

409 

6,580 

3,050 

2,040 

537 

139 

84

13,210

* Winter discharge measurement made on this day.

t Winter field estimate made by water-master for Water District No. 66 on this day.

h Computed on basis of staff-gage reading.

Note. Stage-discharge relation affected by ice Dec. 24 to Apr. 10. No gage-height record Oct. 28 

to~Hov. 9, Dec. 25 to Mar. 21, Apr. 18-24, May 2-13, 15, 16, Sept. 4-10, 16-30; discharge computed 

on basis of 6 field estimates, weather records, and records for Beaver Creek at Spencer and Caraas 

Creek at Camas.
MUD LAKE BASIN 9£ 

Beaver Creek at Camas, Idaho

Location.--Water-stage recorder, lat. 44°01 I , long. 112" 14' , in NE^ sec. 21, T. 8 N., R. 

3b JS., a quarter of a mile northwest of Oregon Short Line Railroad station at Camas 

and three-eighths of a mile upstream from mouth. Prior to Dec. 22, 1949, staff gage 

at same site and datum.

Records available.--April 1921 to September 1950.

Extremes. Maximum discharge recorded during year, 145 second-feet Apr. 18 (gage height, 

'6.'il feet); no flow most of year.

1921-50: Maximum discharge observed, 163 second-feet Apr. V, 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 Apr. 25 to May 10; others 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 1949 to September 1950

Day

1 

Z 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

f38 

a35 

a40

a60 

a70 

ago 

106 

123

112 

124 

132 

h!09 

a85

h73

a75 

h72 

a45 

41

32 

28 

34 

28

19

Secondfoot -days

0 

0 

0

1,554.1

0 

0 

0 

1,571 

209.8 

0 

0 

0 

0

1,780.8

May

20 

29 

30 

26 

26

21 

16 

11 

9.2 

6.7

4.6 

2.2 

.1 

0 

0

0 

0 

0 

3.9 

3.8

.3 

0

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

0

100

0 

0 

0 

132 

30 

0 

0 

0 

0

132

June

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

4.26

0 

0 

0 

52.4 

6.77 

0 

0 

0 

0

4.88

Sept.

Runoff In 

acre -feet

0

0 

0

3,080

0 

0 

0 

3,120 

416 

0 

0 

0 

0

3,540

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

Dubois.

f Commuted on basis of partly estimated gage-height record, 

h Computed from staff-gage reading.

ords and records for station at
94 MUD LAKE BASIN

Medicine Lodge Creek at Ellis Ranch, near Argora, Idaho

Location.--Water-stage recorder, lat. 44°17' long. 112°30', in see. 7, T. 11 N., R. 34 

E., 4 miles upstream from Middle Creek, 6-J miles southeast of Argora, and 17 miles 

northwest of Dubois. Altitude of gage is 5,708 feet (topographic map of dam sites).

Records available.--October 1940 to September 1950.

Extremes.--Maximum discharge during year, 122 second-feet Apr. 14 (gage height, 3.10 

reet); minimum, 9 second-feet Dec. 11 (gage height, 1.05 feet).

1940-50: 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 aecond-feet Dec. 12, 1940, Dee. 11, 1949.

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

several diversions above and below station for irrigation.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

43 

40 

39

38 

38

39 

39 

42

41 

41

36 

34 

32 

32 

31

31 

30 

32 

18 

15

15 

18 

£5 

35 

35

35 

35 

35 

35 

35 

35

Nov.

36 

36 

36 

36 

36

36 

36 

36 

36 

36

34 

34 

35 

36 

36

36 

36 

36 

36 

35

34 

34 

35 

36 

36

36 

36 

37 

36 

36

Dec.

35 

36 

30 

£2 

26

22 

21 

24 

32

26

11 

10 

12 

14 

15

18 

20 

21 

23 

18

18 

17 

17 

17 

16

15 

16

17 

19 

20 

21

Jan.

22

22 

20 

21 

19

20 

20 

21

21

24 

27 

30 

31 

24

24 

27 

34 

40 

48

52 

52 

49 

43 

28

23 

27 

28 

24 

22 

22

Feb.

23 

23 

24 

26 

30

37 

42 

43 

45 

48

50 

46 

45 

46 

45

45 

44 

43 

42 

43

40 

42 

42 

42 

42

43 

42 

42

Month

Oc to 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

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

lendar year 1949

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

Mar.

41 

42 

42 

42 

43

44 

40 

43 

42 

41

27 

28 

33 

42 

42

42 

43 

43 

43 

41

41 

41 

40 

40 

39

40 

40 

38 

37 

40 

43

Apr.

56 

62 

52 

48 

47

57 

68 

76 

59 

57

59 

66 

83 

89 

62

71 

76 

58 

44 

37

36 

34 

35 

33 

34

34 

35 

36 

37 

38

Secondfoot-days

1,029 

1,070 

629

14,944

887 

1,125 

1,243 

,579 

,568 

,778 

,683 

,288 

,105

14,984

May

37 

38 

39 

40 

36

36 

38 

38 

37 

37

35 

34 

36 

39 

44

54 

59

72 

70

68

66 

65 

63 

62 

62

62 

62 

61 

60 

59 

59

Maximum

43 

37 

36

75

52 

50 

44 

89 

72 

67 

62 

51 

41

89

June

59 

59 

60 

59 

59

59 

66 

65 

55 

51

51 

51 

52 

58 

59

57 

57 

61 

65 

62

62 

61 

60 

66 

67

62 

61 

58 

59 

57

Minimum

July

59 

57 

57 

61 

60

59 

59

58 

59

60 

55 

56 

56 

54

54 

53 

52 

52 

52

51 

51 

52 

51 

50

50 

50 

49 

48 

48 

48

15 

34 

10

10

19 

23 

27 

33 

34 

51 

48 

36 

34

10

Aug.

46 

46 

46 

50 

51

47 

46 

45 

44 

43

44 

48 

44 

43 

42

40 

40 

39 

38 

38

38 

38 

38 

38 

38

38 

36 

36 

36 

36 

36

Mean

33.2 

35.7 

20.3

40.9

28.6 

40.2 

40.1 

52.6 

50.6 

59.3 

54.3 

41.5 

36.8

41.1

Sept.

34 

34 

34 

34 

34

34 

34 

34 

41 

40

36 

36 

38 

40 

39

39 

38 

38 

38 

38

38 

38 

38 

38 

37

36 

36 

36 

37 

38

Runoff In 

acre-feet

2,040 

2,120 

1,250

29,640

1,760 

2,230 

2,470 

3,130 

3,110 

3,530 

3,340 

2,550 

2,190

29,720

Note. No gage-height record Oct. 21 to Nov. 8, Jar 

f weather records and records for adjacent periods.

16-21, May 27-30; discharge computed
LITTLE LOST RIVER BASIH 95

Little Lost River near Howe, Idaho

Location.--Water-stage recorder, lat. 43°53', long. 113°06', in sec. 3, T. 6 N., R. 28 

K., 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 1950 (no winter records except 1948-50).

Extremes.--Maximum discharge during year, 161 second-feet June 23-25; maximum gage height 

recorded, 5.40 feet Jan. 22 (ice jam); minimum discharge not determined, occurring 

during period of ice effect.

1921-50: Maximum discharge, about 450 second-feet Aug. 11, 1936, during cloudburst 

(gage height, 3.1 feet, datum then in use, from floodmark), from rating curve extended 

above LOO 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, 

wnich are poor. 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

66 

70 

65 

62 

60

63 

65 

69 

69 

70

71 

70 

69 

69 

71

72 

70 

70 

69 

68

72 

74 

74 

72 

72

12 

72 

74 

74 

76 

79

Nov.

84 

82 

80 

80 

80

80 

80 

82 

84 

85

82 

78 

70

*45 

48

48 

50 

52 

52 

50

48 

55 

58 

58 

58

56 

52 

49 

49 

48

Dec.

44 

42 

41 

41 

39

39 

38 

38 

36 

34

33 

32 

31 

31 

32

34 

34 

33 

32

31

31 

31 

31 

31 

31

31 

31 

32 

32 

32 

32

Jan.

3£ 

25 

18 

14 

13

, 20

13

*13 

13 

15 

25

35 

. 20

Feb.

1"

35

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

St............ ..........................

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

Mar.

40

*h41 

41

41 

41 

h41 

44 

48

53 

54 

52 

55 

56

54 

53 

53

53 

54 

55

Apr.

57

63 

63 

54 

58

62 

69 

85 

75 

67

67 

67 

71 

76 

69

68 

74 

77 

76 

74

79 

94 

90 

81 

77

72 

71 

72 

70 

72

Secondfoot-days

2,169 

1,921 

1,060

24,606

676 

905 

1,409 

2,150 

3,156 

4,557 

3,296 

2,095 

1,930

25,324

May

72 

76 

76 

77 

77

77 

76 

75 

76 

75

75 

76 

84 

94 

103

106 

105 

109 

114 

111

108 

111 

120 

127

134

134 

134 

136 

138 

140 

14O

Maximum

79

85 

44

156

56 

94 

14O 

160 

139 

82 

75

160

June

142 

143 

146 

145 

142

145 

149 

 153 

154 

153

152 

153 

157 

156 

156

154 

156 

159 

- 159 

157

157 

159 

160 

160 

160

157 

149 

143 

142 

139

Minimum

July

138 

135 

135 

138 

139

134 

135 

136 

129 

123

131 

122

114 

109 

105

102 

95 

97 

94 

90

88 

84 

85 

82 

81

79 

79 

79 

80 

79 

79

60 

45 

31

-

54 

72 

139 

79 

57 

54

-

Aug.

78 

72 

68 

72 

79

82 

81 

76 

72 

74

70 

72 

72 

70 

68

65 

62 

59 

62 

63

62 

63 

63 

63 

63

64 

63 

62 

60 

58 

57

Mean

70.0 

64.0 

34.2

67.4

21.8 

32.3 

45.5 

71.7 

102 

152 

106 

67.6 

64.3

69.4

Sept.

56

55 

54 

54 

55

55 

58 

58 

65 

75

68 

63 

60 

62 

67

68 

70 

71 

70 

70

68 

68 

67 

66

66

67 

66 

67 

67 

74

Runoff In 

acre-feet

4,300 

3,810 

2,100

48,790

1,34O 

1,800 

2,790 

4,260 

6,260 

9,040 

6,540 

4,160 

3,830

50, 230

* Winter discharge measurement made on this day.

h Computed from staff-gage reading.

Note. Stage-discharge relation affected by ice Dec. 2, 3, 9-13, Dec. 17 to about Feb. 10. No 

gage-height record Dec. 20 to Jan. 15, Jan. 23 to Mar. 13, Mar. 15-17, 19-21; discharge computed on 

basis of weather records and records for Medicine Lodge Creek near Argora and other nearby streams.
96 LITTLE LOST RIVER BASIN

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

Location. Staff gage and Cippolettl weir, lat. 43°53', long. 113°05', In NW^NW^ sec. 11, 

TTTTTJ., R. 28 E., 300 yards downstream from head gates and 7 miles northwest of Howe.

Records available. April 1924 to September 1950 (prior to 1939, irrigation seasons only).

Extremes. Maximum discharge observed during year, 60 second-feet Apr. 17 (gage height, 

a.ub feet); no flow during long periods.

1924-50: Maximum discharge observed, 87 second-feet May 24, 25, 1928; no flow 

during long periods each year.

Remarks. Records good except those for Apr. 1-10, which are poor. Gage read once daily, 

canal diverts water from" Little Lost River in sec. 2, T. 6 N., R. 28 E., for irrigation 

of lands in project of Blaine County Investment Co.

Cooperation. Gage-readings furnished by Water District No. 9.

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

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.9 

5.9 

5.9 

a5.9 

5.9

5.9 

a5.9 

6.3 

8.8 

9.9

9.9 

9.9 

9.9 

9.9 

9.9

9.9 

9.9

11 

IE 

12

12 

12 

13 

15 

15

16 

17 

21 

26 

29 

40

Nov.

49 

50 

53 

51 

51

51 

51 

51 

51

51

51 

29 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

o

0

0 

0 

0

o

0

Dec. Jan. Feb.

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year 1949

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

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

34 

49

51 

49 

56 

55

51

48 

60 

43 

30 

28

27 

28 

28 

28 

22

16 

12 

7.2 

5.6 

5.0

Secondfoot -days

386.6 

589 

0

4,621.1

0 

0 

0 

732.8 

416.0 

1,391 

474.5 

110.0 

268.4

4,368.3

May

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.9 

6.9

9.4 

10

10 

14 

18

18 

14 

14 

14 

24

29 

28 

30 

30 

33 

35

Maximum

40 

53 

0

59

0 

0 

0 

60 

35 

54 

28 

11 

14

60

June

36 

37 

40

41

41

41 

41 

45 

47 

47

47 

47 

51 

53 

53

53 

53 

54 

54 

54

54 

54 

52

51 

51

50 

44 

38 

33

29

Minimum

July

28 

27 

26 

26 

26

25 

25 

25 

22 

19

19 

18 

18 

18 

18

16 

14 

8.0 

8.0 

8.0

8.3 

8.3 

8.3 

7.3 

6.9

6.9 

6.9 

6.9 

6.9 

6.9 

6.9

5.9 

0 

0

0

0 

0 

0 

0 

5.6 

29 

6.9 

0 

0

0

Aug.

7.2 

6.9 

6.9 

6.2 

6.2

6.2 

6.2 

6.2 

6.2 

6.2

9.1 

11 

11 

11 

3.5

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

12.5 

19.6 

0

12.7

0 

0 

0 

24.4 

13.4 

46.4 

15.3 

3.55 

8.95

12.0

Sept.

0 

0 

0 

0 

0

4.6 

8.0 

8.0 

8.0 

9.8

11 

11 

11 

10 

10

10

10

11

12 

12

12 

12 

12 

12

12

12 

12 

12 

12 

14

Runoff In 

acre-feet

767 

1,170 

0

9,160

0 

0 

0 

1,450 

825 

2,760 

941 

218 

532

8,660

a No gage-height record; discharge Interpolated.
BIG LOST RIVER BASIN 97

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 

E., 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 1950.

Extremes.--Maximum discharge during year, 525 second-feet June 22 (gage height, 4.02 feet); 

minimum recorded, 9.5 second-feet Mar. 29 (gage height, 1.15 feet).

1944-50: Maximum discharge, 876 second-feet June 9, 1948 (gage height, 4.99 feet); 

minimum recorded, 9 second-feet sometime during period Feb. 4 to Mar. 14, 1947 (from 

recorded range In stage); minimum gage height recorded, 1.12 feet Mar. 11, 1948.

Remarks.--Records good except those for Dec. 16 to Jan. 18, which are fair. 

Cooperation. Water-stage recorder inspected by Water District No. 27.

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

Day

1

3

3

4

5

6

7

8

9

10

11

13

13

14

15

16

17

18

19

20

21

32

33

34

35

26

37

38

29

30

31

Oct.

30

29

28

28

30

31

31

32

30

31

31

31

31

30

30

30

30

30

30

30

29

29

39

28

28

28

28

28

28

27

27

Nov.

27

27

26

26

27

25

25

26

27

26

22

25

25

26

25

26

*26

24

24

24

23

24

26

26

25

25

34

29

28

25

-

Dec.

27

24

20

22

24

24

23

23

23

21

18

19

18

18

18

18

17

17

17

17

17

17

17

17

17

Jan.

> 17

*20

20

21

21

21

20

19

19

19

18

18

17

17

Month

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Feb.

17

17

17

17

17

17

16

16

16

16

16

16

16

16

16

15

13

13

13

13

13

13

13

12

11

15

18

17

_

-

Secondfoot-days

912

774 

595

29, 769

556

425

570

1,460

6, 288

11,344

6,677

2,120 

1,567

33,288

Mar.

18

20

20

20

18

18

18

18

18

18

18

20

20

19

18

18

18

18

18

18

18

18

18

*18

18

18

18

18

17

18

20

Maximum

32

34

27

49(

21

IE

2C

102

401

503

432

104 

101

503

Apr.

24

25

22

21

21

23

24

24

22

22

25

31

40

38

37

54

62

55

56

81

102

97

87

76

72

68

68

66

60

57

-

May

57

55

52

49

47

46

44

43

43

43

49

68

114

185

244

262

292

300

234

201

220

292

374

392

333

316

353

401

386

395

398

Minimum

27

-

11

17

21

43

265

87

44 

38

11

June

414

423

356

353

404

481

503

423

342

325

348

353

322

311

316

345

398

380

393

414

465

500

449

368

297

265

278

319

383

417

-

Mean

29 .4

25 . 8

19.2

81 9

17.9

15 2

18 . 4 203' 48 7

378

215

68.4 

53.2

91.2

July

429

433

389

368

350

342

333

327

297

302

278

232

208

194

183

172

162

152

148

145

135

129

122

120

117

113

109

108

100

93

87

Per 

square 

mile

0 .258

. 168

. 718

.157

.133

.161

.427

1 78

3» 32

* rt

* 600 

.458

.800

Aug.

84

83

82

85

104

101

84

75

74

74

75

94

93

81

73

68

65

62

57

56

55

54

54

54

53

50

48

48

46

44

44

Sept.

43

42

41

40

38

38

38

43

69

101

82

70

63

63

61

59

57

56

54

54

50

49

48

46

45

44

43

42

44

44

-

Runoff

Inches Acre feet

0.30 1,810

.25 1,540

.19 1,1BO

9.70 59,050

.18 1,100

.14 843

19 1 130

.48 2,900

2.05 12,470

3.70 22,500

2.18 13,240

.69 4, 200 

.51 3,110

10.86 66,030

Peak discharge (base. 500 sec.-ft.). May 18 (2:30 a.m.) 330 sec.-ft.j May 24 (2:30 a.m.) 423 sec.- 

ft.; June 7 [7 a.m.) 522 sec.-ft.j June 22 (3 a.m.) 525 sec.-ft.; July 2 (5 a.m.) 465 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 16-24, Jan. 26-38. No gage-height record 

Dec. 25 to Jan. 18; discharge computed on basis of weather records and flow during adjacent periods.
98 BIG LOST RIVER BASIN

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 

E., 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 

aeptemoer iybu (no winter records prior to 1949).

Extremes. Maximum discharge during year, 1,530 second-feet June 7 (gage height, 3.44 

feet); minimum not determined, probably occurred during winter.

1904-14, 1920-50; 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 Dec. 1 to Apr. 12, which are poor. No regulation, 

several small diversions above station. Hammerly ditch (capacity, about 20 secondfeet) diverts a quarter of a mile below station.

Cooperation. Water-stage recorder inspected by Water District No. 27.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

92 

89 

85 

83 

89

94 

89 

96 

94

104

98 

102 

102 

98 

98

98 

94 

98 

96 

96

94 

94 

92 

92 

92

90 

90 

90 

92 

89 

87

Nov.

89 

87 

87 

85 

85

85 

85 

87 

90 

89

77 

78 

79 

79 

80

80 

*81 

77 

76 

76

75 

75 

75 

78 

81

79 

83 

78 

75 

73

Dee.

72 

72 

72

65 

> 55

Jan.

» 55

(*) 

60

h

Feb.

» 52 

. 48

} "

Month

Octo 

Move 

Dece

Ca

janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Peak discharge (base, 900 sec. -ft.). May

Mar.

60

)" 

)-

(*)

75

Apr.

> 80

100 

120 

146 

152 

144

164 

213 

216 

194 

246

372 

412 

322 

260 

219

207 

213 

194 

182 

170

Secondfoot -days

2,897 

2,424 

1,826

85,368

1,761 

1,425 

2,100 

5,046 

17,768 

30,777 

18,622 

5,881 

4,221

94,748

18 (1:30 a.m

ft.; June 2 (5:30 a.m.) 1,300 sec. -ft.; June 7 (6 a.m.) 

ft.; July 2 (4:30 a.m.) 1,310 see. -ft. 

* Winter discharge measurement made on this day. 

Note. Stage -discharge relation affected by Lee Nov. 1 

gage-height record Dee. 4 to Mar. 23, Mar. 27 to Apr. 12 

charge computed on basis of 1 discharge measurement, wea 

at Wild Horse, near Chilly, and Warm Springs Creek at Gu

May

170 

163 

155 

150 

145

140 

135 

130 

130 

130

155 

216 

380 

550 

716

736 

802 

815 

629 

556

612 

815 

1,020 

1,050 

919

877 

982 

1,130 

1,100 

1,130 

1,130

Maximum

104 

90

1,450

412 

1,130 

1,460 

1,160 

272 

302

1,460

June

1,180 

1,220 

982 

968 

1,110

1,360 

1,460 

1,170 

940 

856

912 

940 

863 

822 

842

947 

,090 

,020 

,020 

,060

,250 

,390 

,210 

975 

795

703 

736 

856 

1,000 

1,100

July

1,150 

1,160 

1,040 

996 

961

940 

912 

996 

828 

828

762 

641 

578 

556 

519

493 

454 

430 

421 

403

376 

364 

351 

346 

346

334 

322 

318 

287 

264 

246

Aug.

236 

232 

226 

232 

268

272 

226 

203 

197 

203

200 

257 

260 

232 

210

197 

183 

175 

164 

159

154 

149 

149 

149 

146

142 

137 

137 

132 

128 

126

Sept.

123 

123 

121 

119

117

115 

117 

121 

189 

302

216 

177 

159 

154 

152

149 

146 

144 

142 

139

130 

128 

123 

121 

117

115 

113 

113 

115 

121

Mini Mean «£«£

83 93.5 5,750 

73 80.8 4,810 

58.9 3,620

235 169,300

56.8 3,490 

50.9 2,830 

67.7 4,170 

168 10,010 

130 573 35,240 

703 1,026 61,050 

246 601 36,940 

126 190 11,660 

113 141 8,370

260 187,900

.) 947 sec.-ft.i May 24 (4 a.m. 1 1,160 sec.- 

1,530 see. -ft.; June 22 (8 a.m.) 1,470 sec.-

2-16, 19-24, Nov. 28 to about Apr. 10. No 

, Apr. 29 to May 8, May 10, 11, 13, 14; disbher records, and records for Big Lost River 

yer Hot Spring, near Ketchum.
BIG LOST RIVER BASIN 99

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. 

H2, T. 8 N., R. 23 E., above flow line of reservoir, 3 miles upstream from Mackay Dam 

and 7 \ miles northwest of Mackay.

Records available. May 1919 to September 1950. 

Average discharge.--31 years, 65.0 second-feet.

Extremes. Maximum discharge during year, 1,010 second-feet July 7 (gage height, 4.70 feet); 

no now Nov. 14, 15, Jan. 19 to May 18.

1919-50: Maximum discharge, 1,320 second-feet June 7, 1938; maximum gage height, 

5.02 feet July 1, 1944; no flow during long periods in many years.

Remarks. Records good except those below 5 second-feet, which are poor. 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9 

9 

8 

8 

8

8 

8 

8 

7 

7

7 

6 

6 

5 

5

5 

4 

4 

4 

3

3 

3

2 

2 

2

2 

2

 I 

2 

3

Nov.

2 

2 

2

2 

2

2 

2 

2

2

1 

1 

0 

0

1 

2

Dec.

2

2 

2 

2

2 

2 

2 

2 

b2

2

2

2 

2

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 

1 

1

1 

1 

1

0

o

0

0

o

0 

0

0 

0 

0 

0 

0 

0

Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194£ 

ary

uary. ...................................

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

ter year 1949 5O .......................

Mar. Apr.

Secondfoot-days

154 

54 

46

18,498

18 

0 

0 

O 

1,536 

10,677 

6,582 

1,306 

316

20,689

May

0 

0

0 

0 

0

0 

0

o

0 

0

0

o

0 

0 

0

0 

0 

0 

6

16

23 

29 

66 

115 

127

130 

146 

183 

213 

230 

252

Maximum

9 

3 

2

488

1 

0 

O 

0 

252 

508 

404 

65 

15

508

June

266 

295 

285 

249 

279

397 

508 

496 

387 

336

353 

383 

377 

333 

328

344 

404 

437 

429 

433

411 

444

441 

368 

306

262 

244 

256 

290 

336

July

362 

400 

394 

397 

362

342 

404 

374 

333 

322

311 

269 

234 

194 

173

160 

150 

138 

131 

123

115 

109 

102 

96 

94

92 

88 

85 

84 

74 

70

Minimum

2

0 

1

0

0 

0 

0 

0 

0 

244 

70 

14 

5

0

Aug.

65 

61 

56 

55 

60

64 

64 

63 

63 

h62

60 

57 

h53 

51 

44

42 

39 

37 

34 

30

29 

28 

27 

26 

25

24 

20

19 

18 

16 

14

Mean

5.0 

1.8 

.1.5

50.7

.6 

0 

O 

0 

49.5 

356 

212 

42.1 

10.5

56.7

Sept.

12 

13 

13 

8 

5

9

11 

13 

15 

15

14 

13 

12 

11 

10

9 

9 

9 

8 

7

7 

8

11 

11 

11

10 

10 

10

11 

11

Runoff In 

acre -feet

305 

107 

91

36,690

36 

0 

O 

0 

3,050 

21,180 

13,060 

2,590 

627

41,050

b Stage-discharge relation affected by Ice.

h Computed from staff-gage reading.

Note .'--No gage height record Nov. 11, 12, Dec. 9, Dec. 11 to May 6, July 21, Aug. 5, 7-9, 11, 12, 

14-19, 21-23, 31, Sept. 7-9; discharge computed on basis of weather records, records for nearby 

streams, and field observations.
100 BIG LOST RIVER BASIN

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

Location.--Water-stage recorder, lat. 43°58', long. 113°45', in sec. 5, T. 7 N., R. 23 E., 

above flow line of reservoir, 3 miles upstream from Mackay Dam and 7j miles northwest 

of Mackay.

Records available. May 1919 to September 1950. 

Average discharge. 31 years, 58.9 second-feet.

Extremes. Maximum discharge during year, 277 second-feet July 7 (gage height, 3.40 feet);

 minimum, 23 second-feet May 6-17 (gage height, 2.00 feet).

1919-50: Maximum discharge, 1,200 second-feet (estimated) sometime 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. 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 p. 102).

Cooperation.--Water-stage recorder graph furnished by Water District No. 27.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

48 

47 

47 

47 

48

48 

48 

48 

48 

48

48 

47 

47 

47 

47

47 

47 

47 

47 

47

47 

47 

47 

47 

47

47 

47 

47 

47 

47 

47

Nov.

46 

46

46 

46 

44

44 

44 

44 

44 

44

44 

44 

44 

44 

44

44 

44 

44 

43 

41

41 

41 

41 

41 

41

41

41 

41 

41 

41

Dec.

41 

40 

40 

39 

39

39 

38 

38 

38

36

36 

36 

36 

36 

36

35 

35 

35 

35 

35

35 

35 

35 

35 

35

35 

35 

35 

35 

34 

32

Jan.

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

31 

31 

31 

31

31 

31 

31 

31 

31

31 

31 

31 

31 

31

30 

30 

30 

30 

30 

30

Feb.

30 

29 

29 

29 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

apy

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

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

Mar.

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

27 

27 

27 

27 

26 

26

Apr.

26 

26 

26 

26 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

24 

24 

26 

26 

26

26 

26 

26 

26 

24

Secondfoot-days

1,465 

1,294 

1,124

21,527

966 

789 

860 

742 

1,378 

5,353 

3,688 

1,371 

1,204

20,234

May

24 

24 

24 

24 

24

23 

23 

23 

23 

23

23 

23 

23 

23 

23

23 

23 

24 

24 

28

30 

32 

36 

59 

82

84 

89 

103 

120 

127 

144

Maximum

48 

46 

41

297

32 

30 

28 

26 

144 

239 

207 

50 

43

239

June

156 

170 

170 

150

162

185 

229 

234 

183 

154

166 

185 

187 

168 

164

170 

193 

209 

204 

200

193 

227 

239 

209

172

138 

123 

120 

135 

158

Minimum

July

183 

204 

202 

207 

196

183 

207 

207 

181 

174

166 

140 

129 

116 

105

99 

90 

85 

78 

73

70 

69 

67 

64 

61

59 

58 

56 

54 

53 

52

47 

41 

32

32

30 

28 

26 

24 

23 

120 

52 

40 

39

23

Aug.

50 

47 

47 

48 

50

50 

47 

46 

47 

47

47 

47 

47 

46 

44

44 

44 

43 

41 

41

41 

41

41 

41 

41

41 

41 

41 

40 

40 

40

Mean

47.3 

43.1 

36.3

59.0

31.2 

28.2 

27.7 

24.7 

44.5 

178 

119 

44.2 

4O.1

55.4

Sept.

39 

39 

39 

39 

39

39 

41 

41 

43 

43

43

41 

41 

41 

41

41 

41 

41 

41 

40

40 

39 

39 

39 

39

39 

39 

39 

39 

39

Runoff In 

acre -feet

2,910 

2,570 

2,230

42,770

1,920 

1,560 

1,710 

1,470 

2,730 

10,620 

7,320 

2,720 

2,39O

40,150
BIG LOST RIVER BASIN 101

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, 

water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

166 

163 

162 

163 

166

166 

169 

176 

180 

182

182 

180 

179 

178 

178

178 

178 

178 

178 

178

176 

176 

175 

175 

175

174 

174 

174 

172 

174 

174

Nov.

178 

179 

180 

178 

176

176 

176 

176 

175 

174

172 

171 

171 

170 

169

170 

171 

169 

168 

166

166 

166 

168 

168 

168

166 

L66 

L65 

164 

L64

Dec.

163 

162 

161 

160 

160

160 

158 

157 

156

153

154 

154 

153 

153

153

150 

150 

151 

151 

151

151 

150 

150 

150 

151

151 

151 

151 

151 

149 

147

Jan.

148 

148 

147 

148

148

150 

151 

151 

151 

151

151 

150 

150 

150 

148

152 

150 

149 

147 

147

148 

148 

148 

148 

146

145 

145 

145 

143 

144 

142

Feb.

142 

141 

142 

143 

142

142 

141 

141 

140 

138

138 

136 

136 

135 

134

132 

132 

132 

132 

132

132 

132 

132 

131 

131

131 

131 

131

Month

Octo 

Hove 

Deee

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 194

St......................................

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

Mar.

131 

131 

131 

132 

132

134 

133 

133 

133 

133

133 

133 

133 

133 

132

132 

132 

132 

132 

132

132 

133 

133 

133 

135

134 

132 

130 

130 

130 

133

Apr.

141 

133 

133 

132 

130

132 

132 

132 

129 

127

125 

125 

125 

124 

122

121 

120 

116 

115 

115

115 

115 

117 

1L7 

113

111 

111 

112 

110 

108

Seoondfoot-days

5,399 

5,126 

4,762

83,387

4,589 

3,802 

4,102 

3,658 

5,884 

22,818 

15,654 

5,979 

5,039

86,712

May

106 

101 

100 

99 

98

97 

97 

95 

95 

95

95 

95 

97 

98 

98

95 

95 

99

107 

125

135 

145 

188 

278 

337

348 

378 

444 

506 

544 

594

Maximum

182 

180

163

1,020

152 

143 

135 

141 

594 

1,010 

868 

227 

184

1,010

June

627 

685 

676 

603 

657

816 

1,010 

995 

797 

694

738 

818 

809 

730

711

740 

836 

898 

883 

870

835 

929 

948 

823 

694

592 

543 

550 

611 

700

July

T, 3 

849 

838 

849 

799

754 

868 

831 

738 

714

686 

597 

537 

473 

434

411 

385 

363 

344 

326

311 

304 

294 

281 

274

268 

265 

257 

254 

241 

236

Minimum

162 

164 

147

113

142 

131 

130 

108 

95 

543 

236 

154 

141

95

Aug.

227 

219 

215 

216 

225

226 

219 

216 

218 

218

216 

213 

209 

206 

196

193 

189 

184 

178 

174

173 

172 

172 

172 

171

168 

163 

161 

160 

156 

154

Mean

174 

171 

154

228

148 

136 

132 

122 

190 

761 

502 

193 

168

238

Sept.

150 

150 

151 

144 

141

145 

151 

157 

175 

174

168 

165 

165 

171 

170

173

177 

181 

177 

176

174 

174 

177 

178 

178

177 

177 

177 

182 

184

Runoff in 

acre-feet

10,710 

10,170 

9,450

165,400

9,100 

7,540 

8,140 

7,260 

11/670 

45,260 

30,850 

11,860 

9,990

172,000
102 BIG LOST RIVER BASIN

Mackay Reservoir near Mackay, Idaho

Location.--Staff gage on head-gate tower of dam on Big Lost River, lat. 43°57' , long.

 113"40', 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 1950.

Extremes.--Maximum contents observed during year, 33,720 acre-feet June 24, 25 (gage

 height, 58.20 feet); minimum observed, 490 acre-feet Oct. 1 (gage height, 9.60 feet).

1919-50: Maximum contents observed, 41,270 acre-feet May 30, 1938 (gage 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- androck-fill dam, which was reconstructed 1917-18;

 storage impounded by original dam not recorded. Capacity is 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 because 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 readings and capacity table furnished by Water District No. 27.

Contents, in acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

510

530

580

680

810

960

1,130

1,320

1,510

1,680

1,860

2,050

2,360

2,700

2,890

3,100

3,460

3,860

4,160

4,480

4,780

5,080

5,400

5,700

5,930

6,200

6,560

6,840

7,080

7,320

7,580

Nov.

7,820

8,010

8,350

8,770

9,010

9,190

9,490

9,760

10,120

10,340

10,470

10,730

11,070

11,320

11,530

11,800

12,090

12,360

12,620

12,850

13,100

13,330

13,570

13,820

14,050

14,270

14,500

14,720

14,930

15,160

-

Dec.

15,400

15,630

15,870

16,060

16,230

16,430

16,640

16,820

16,990

17,110

17,200

17,510

17,820

18,000

18,180

18,410

18,530

18,640

18,920

19,170

19,350

19,510

19,680

19,840

20,030

20,180

20,290

20,430

20,600

20,780

20,940

Jan.

21,100

21,220

21,410

21,580

21,730

21,840

21,930

22,080

22,250

22,420

22,540

22,660

22,840

22,940

23,050

23,220

23,320

23,450

23,590

23,710

23,790

23,890

24,040

24,200

24,310

24,410

24,540

24,640

24,740

24,850

24,930

Feb.

25,020

25,110

25,220

25,350

25,480

25,610

25,720

25,790

25,860

25,940

26,050

26,120

26,180

26,290

26,390

26,500

26,570

26,660

26,740

26,810

26,920

26,990

27,090

27,190

27,250

27,350

27,420

27,470

_

-

Mar.

27,560

27,640

27,680

27,760

27,880

27,990

28,070

28,120

28,220

28,280

28,370

28,450

28,510

28,590

28,690

28,750

28,820

28,900

28,950

28,990

29,090

29,160

29,220

29,320

29,380

29,440

29,500

29,560

29,600

29/670

29,760

Apr.

29,830

29,880

29,970

30,040

30,090

30,140

30,230

30,300

30,380

30,450

30,490

30,530

30,570

30,650

30,710

30,740

30,790

30,850

30,880

30,910

30,940

30,950

30,960

30,960

30,970

30,980

31,020

31,050

21,060

31,100

-

May

31,140

31,170

31,190

31,200

31,200

31,200

31,200

31,200

31,200

31,190

30,870

30,630

30,400

30,080

29,690

29,130

28,840

28,720

27,220

26,400

25,600

24,720

23,610

23,150

22,670

22,250

22,030

21,700

21,310

21,140

21,110

June

21,180

21,340

21,520

21,640

21,730

22,010

22,660

23,470

24,400

25,140

25,890

26,730

27,580

28,290

29,090

29,830

30,640

31,500

31,980

32,430

32,710

32,950

33,520

33,720

33,470

33,190

32,870

32,470

32,160

31,900

-

July

31,680

31,690

31,650

31,530

31,340

31,110

31,450

31,610

31,450

31,460

31,420

31,220

30,990

30,610

30,010

29,490

29,180

28,200

27,180

26,160

25,340

24,540

23,310

22,640

22,010

21,380

20,450

19,430

18,320

17,290

16,360

Aug.

15,420

14,350

13,260

12,320

11,570

10,870

10,250

9,670

9,080

8,540

8,040

7,600

7,080

6,690

6,380

6,220

5,990

5,770

5,480

5,180

4,830

4,510

4,120

3,820

3,520

3,310

2,950

2,660

2,410

2,210

1,920

Sept.

1,710

1,590

1,450

1,330

1,220

1,110

1,040

960

.910

880

800

710

770

820

1,060

1,370

1,690

2,020

2,340

2,650

3,030

3,440

3,670

3,800

3,940

4,220

4,490

4,770

5,050

5,400

-

Monthly gage height and contents, water year October 1949 to September 195O

Date

Calendar year 1949...

Water year 1949-50...

Q age height 

(feet)

9 55

39 24

-

23 75

-

Contents 

(acre-feet)

-

-

Change in contents 

during month 

(acre-feet)

-9,430

+4,920
BIG LOST RIVER BASIN 103

Big Lost River "below Mackay Reservoir, near Mackay, Idaho

Location.--Water-stage recorder, lat. 43°56', long. 113°38 1 , in sec. 18, T. 7 N., R. 24 

E., 450 feet downstream from Oleson Suspension Bridge, 1 mils downstream from head 

of Sharp ditch, 1-j miles downstream from Mackay Reservoir, and 2-| miles northwest 

of Mackay.

Records available.--December 1903 to August 1906, May 1912 to March 1915 (April 1913 to 

warcn iaib at site 1 mile downstream), January 1919 to September 1950.

Average discharge.--34 years (1904-5, 1912-14, 1919-50), 271 second-feet.

Extremes. Maximum discharge during year 911 second-feet July 7 (gage height, 3.35 feet); 

minimum, 30 second-feet Oct. 3 (gage height, 1.46 feet).

1903-6, 1912-15, 1919-50: Maximum discharge, 2,990 second-feet June 10, 1921 

(gage height, 5.79 feet); minimum, 18 second-feet Nov. 1, 1934; minimum gage height, 

1.23 feet Nov. 5-8, 1926.

Remarks.--Records good. 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

193 

201 

182 

155 

148

145

122 

128 

135 

138

131 

113 

101 

F5 

44

45 

45 

47 

47 

49

50 

50 

52 

52 

52

54 

54 

56 

58 

58 

55

Nov.

60 

62 

65

65 

65

r_9

69 

69 

62 

62

65

65 

62 

65

67 

67 

67 

69 

69

R9

67

67 

67

C9 

69 

a 70 

a70 

a71

Dec.

a71

372

a72 

73 

73

73 

73 

73 

73

76

76 

7b 

76 

79 

78

83 

83 

88 

90 

90

90 

88 

88 

88 

90

90 

90 

90 

90 

90 

90

Jan.

90 

90 

90 

90 

93

93 

9f 

96 9,- 

9C

96 

96 

96 

96 

3f

9G 

96 

96 

96 

96

96 

98 

98 

101 

101

104 

104 

107 

107 

107 

107

Feb.

107

107 

107 

107 

107

107 

107 

107 

107 

107

107 

107 

107 

107 

107

110 

110 

113 

113 

lie

113 

116 

116

lie

116 

116

lie

113

Month

dote 

HOVE 

Dec 6

C£

Jam. 

Pebi 

Hare 

Apr! 

May

June 

Jl»l3 

Augl 

Sept

Vf

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

lendar year 1949

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

Mar

113 

113 

113

113 11.'

113

113 

113 

113 

113

113 

113 

113 

113 

113

111 

113 

113 

113 

113

113 

IIP 

116

lie

116

116 

116 

116 

116 

116 

116

Apr.

 116 

115 

116 

116 

116

115 

116

116 

116

lie

116

lie

116 

116

116

116

lie 

lie

116 

113

113 

113 

113 

110 

107

104 

104 

107 

110 

110

Secondfoot-clays

2,826 

1,995 

2,531

95,351

3,020 

3,086 

3,533 

3,408 

11,097 

17,070 

23,285 

13,912 

4,241

90,004

May

110 

110

110 

113 

113

113

113 

113 

113

122

197

245 

245 

245 

278

450 

428 

422 

500

584 

572 

572 

607 

612

624 

£07 

595 

607 

e07 

F07

Maximum

201 

71 

90

941

107 

116 

116

us

827 

89? 

737 

264

893

June

612

607 

607 

590

590

618 

539 

406 

379

384 

368 

353 

353 

358

395 

40fi 

450 

590 

665

671 

671 

701 

731 

713

707 

701 

701 

755 

827

July

839 

845 

8E3 

893 

893

893 

809 

 83 

785 

743

695 

689 

659

665 

671

665 

677 

749 

779 

785

779 

773 

743 

701

671

677 

713 

731 

749 

743 

725

Minimum

44 

60 

71

44 j

90 

137 

113 

104 

11J 

353 

659 

278 

52

44

Aug.

737 

731 

737 

707

584 

555 

550 

539 

527

488 

472 

439

406 

374

343 

342

332 

332 

353

358 

368 

368 

358 

358

347 

337 

332

317 

297 

278

Mean

91.2

66.5 

81.6

262 j

97.4 

110 

114 

114 

358 

569 

751 

449 

141

247

Sept.

264 

250 

245 

241

219

23C 

23b 

256

223 

241 

201 

128 

101

110 

56 

54 

54 

58

65 

65 

65 

67

67 

69 

65 

52 

52

Runoff In 

acre-feet

5,600 

3,960 

5,020

189,100

5,990

6,120 

7,010 

6,760 

22,010 

33,860 

46,190 

27,590 

8,410

178,500

No gage-height record; discharge Interpolated.
104 BIG LOST RIVER BASIN

Big Lost River near Arco, Idaho

Location. Water-stage recorder, lat. 43°35', long. US"!? 1 , in SW^ sec. 17, T. 3 N., R. 

'JV 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 1950.

Extremes. Maximum discharge during year, 102 second-feet Apr. 3; maximum gage height,3.36 

1'eet Feb. 6 (ice jam); minimum discharge, 5.1 second-feet May 22 (gage height, 1.07 

feet).

1946-50: Maximum discharge, 285 second-feet June 6, 1947; maximum gage height, 3.83 

feet Feb. 3, 4, 1947 (ice jam); minimum discharge, 3.0 second-feet May 20, 21, 1948 

(gage height, 1.01 feet).

Remarks.--Records good except those for Dec. 3 to Mar. 29, which are poor. Station is below "all large diversions for irrigation In Big Lost River Valley. Flow regulated by 

Mackay Reservoir (see p. 102).

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

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

19 

19 

19 

17 

16

16 

16 

19 

22 

22

25 

28 

29 

29 

29

29 

29 

29 

29 

29

29 

29 

28 

28 

28

28 

28 

28 

28 

28 

33

Nov.

33

33 

33 

33 

33

33 

33 

33 

34 

37

35 

34 

34 

34 

*34

33 

32 

32

31 

31

31 

31 

 31 

31 

30

30 

30 

29 

29 

29

Dec.

27 

27 

27 

26 

26

25 

25 

24 

24

> 21

Jan.

20 

(*)

Feb.

18

Month

Goto 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

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

Mar.

> 18 

*16

> 20

33 

37

Apr.

53 

62

87 

94 

87

82 

64 

61 

61 

50

41 

40 

43 

39 

38

39 

40 

39 

38 

36

36 

34 

35 

34 

33

32

31 

30 

26 

25

Secondfoot -days

785 

966 

693

10,386

620 

504 

622 

1,410 

402 

587 

855 

969 

728

9,141

May

24 

23 

22 

20 

19

19 

18 

18 

18 

16

16 

15 

14 

14 

12

11 

11 

11 

11 

10

7 

7 

7 

7 

7

6 

6 

7 

8 

9 

9

Maximum

29

37

224

37 

94 

24 

29 

49 

43 

29

94

June

9 

11 

17 

17 

17

18 

18 

29 

26 

21

21 

20 

2O 

18 

15

16 

17 

19 

19 

16

18 

20 

22 

24

23

25 

24 

23 

22 

22

Minimum

July

21 

21 

22 

22 

25

23 

22 

29 

34 

44

49 

49 

34 

29 

27

24 

24 

23 

22 

25

25 

28 

27 

24 

25

25

25 

25

25 

27 

30

16 

29

12

25 

6 

9 

21 

22 

18

6

Aug.

32 

31 

31 

32

36

38 

37 

35 

36 

35

36

40 

43 

41 

37

35 

34 

32 

30 

27

28 

27 

27 

25 

25

24 

24 

22 

22 

22 

25

Mean

25.3 

32.2 

22.4

28.5

20 

18 

20.1 

47.0 

13.0 

19.6 

27.6 

31.3 

24.3

25.0

Sept.

24 

21 

19 

19 

18

18 

20 

22 

25 

25

24 

22

21 

25 

25

26 

27 

26 

25 

25

25

27 

28 

28 

27

26 

28 

27 

26 

29

Runoff In 

acre -feet

1,560 

1,920 

1,370

20,610

1,230 

1,000 

1,230 

2,800 

797 

1,160 

1,700 

1,920 

1,440

18,130

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 3 to Mar. 29 (no gage-height record Dec. 23, 

24, Jan. 5-20, Jan. 29 to Feb. 2, Feb. 11 to Mar. 12, Mar. 15-17; discharge computed on basis of 

weather records and flow during adjacent periods).
BIG LOST RIVER BASIN 105

Warm Spring Creek (east channel) near Mackay, Idaho

Location. Water-stage recorder, lat. 43°58', long. 113°45', in NE£ sec. 5, T. 7 N., R. 

2tT"E7, 700 feet upstream from confluence with west channel and 7-| miles northwest 

of Mackay.

Records available. May 1919 to September 1950. 

Average discharge. 31 years, 28.9 second-feet.

Extremes.--Maximum discharge during year, 132 second-feet July 7 (gage height, 3.05 feet); 

minimum, 20 second-feet May 8-12, 16, 17.

1919-50: Maximum discharge observed, 225 second-feet June 15, 1922 (gage height, 

3.24 feet, site and datum then in use); minimum, 9 second-feet May 8, 9, 13, 14, 1919, 

May 18-21, 1920.

Remarks. Records good except those for Oct. 1 to Feb. 14, which are fair. Practically 

an natural flow above station diverted during irrigation season. Discharge during 

3ummer 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 which enters Mackay Reservoir.

Cooperation. Water-stage recorder graph furnished by Water District Ho. 27.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

27

26 

26 

26

26 

26 

27 

27 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

29

28 

28 

28 

28 

28

27 

27 

27 

27 

35 

35

Nov.

33 

33 

34 

35 

35

35 

35 

35 

35 

35

34 

34 

34 

34

33

33 

33 

33 

33

33

33 

33 

33 

33 

33

33 

33 

33 

33 

33

Dec.

33 

33 

33 

33 

33

33 

35 

35 

34 

34

35 

35 

34 

34 

34

32 

32 

32 

32

32

32 

32

32 

32

33

32 

32

32 

32 

31 

31

Jan.

32 

32 

31 

31 

31

31 

31 

30 

30 

30

30 

30 

30 

30 

30

31 

30 

30 

30 

30

31 

31 

31 

31 

31

31

31 

31 

31 

31

31

Feb.

31 

31 

31 

31 

31

31 

31 

31 

31 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

29 

29

29 

29 

29

Month

Octo 

Hove 

Dece

Ca

Janu 

.Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

29 

29 

29 

29 

29

30 

29 

29 

29 

29

29 

29 

29 

29 

29

29 

29 

29 

30 

30

30 

30 

30 

30 

32

32 

31 

30 

30 

31 

32

Apr.

35

32 

32 

31

31

32

32 

32 

31 

30

30 

30

30 

30 

30

29 

29 

28 

28 

28

2« 

28 

28 

28

26

25 

25

26 

25 

25

Secondfoot -days

864 

1,009

1,019

12,577

951 

844 

921 

874 

927 

2,364 

1,710 

944 

999

13,426

Hay

24

22

22 

21

21

20 

20 

20

20 

20 

21

22

20

20

22 

24

24 

25

26

44

46 

50 

54

eo

67 

7C

Maximum

35 

35 

35

102

32' 

31

35 

72 

101 

92

35 

40

101

June

74

80 

81 

72

76

84

101 

99 

80 

69

73 

85 

84

77

73

77 

83 

88 

87

83

81 

92 

98 

88 

75

64 

57 

55

60 

68

July

80 

87 

86 

87 

85

80 

92

90 

80 

76

73 

63 

57 

52 

49

47 

44 

42 

40 

37

36 

36 

35 

33 

32

31 

32 

32 

32 

32 

32

Minimum

3'J 

31

20

30 

29 

29 

25 

20 

55 

31 

28 

27

20

Aug

31 

31

32 

33 

35

32 

30 

30 

31 

32

32 

32 

32 

32 

31

31

30 

29 

29 

29

29 

29

30 

30

29 

29 

28 

29 

29 

29

Mean

27.9 

33,6 

32.9

34.5

30.7 

30.1 

29.7 

29.1 

29.9 

78.8 

55.2 

30.5 

33.3

36.8

Sept.

28 

27

27 

27

27 

28 

29 

33 

33

30 

30 

30 

32

32

33 

35 

37

37

37 

37 

37 

38 

38

38 

38 

38 

39 

49

Runoff In 

acre -feet

1,710 

2,000 

2,020

24,940

1,890 

1,670 

1,830 

1,730 

1,840 

4,690 

3,390 

1,87U 

1,980

26,620

Note. Part of flow diverted around station Oct. 1 to Feb. 14 by beaver dams; published discharge 

includes bypass flow and was computed on basis of 2 field estimates of bypass and records for nearby 

stream's .

 J53646 0-53-8
BIG LOST RIVER BASIN

Warm Spring Creek (west channel) near Mackay, Idaho

Location. Water-stage recorder, lat. 43 C 58', long. 113°45', in ME-J- sec. 5, T. 7 N. , 

K. aj E., 500 feet upstream from confluence with east channel and 1\ miles northwest of Mackay.

Records available.--May 1919 to September 1950. 

Average discharge. 31 years, 92.2 second-feet.

Extremes. Maximum discharge during year, 206 second-feet July 7 (gage height, 2.34 

 T; minimum, 52 second-feet May 8-12, 16, 17 gage height, 1.07 feet).

1919-50: Maximum discharge, 600 second-feet (estimated 

height, 4.42 feet, datum then in use, from high-water mark

Apr. 27, 1935 5e height, 0.62 foot, datum then in use).

Aug. 11, 1936 (gage 

; minimum, 49 second-feet

Remarks.--Records good. Flow during summer represents return flow 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

82 

81 

81 

82 

84

84 

87 

93 

98 

99

99 

99 

98 

98 

98

98 

99 

99 

99 

99

98 

98 

98 

98 

98

98 

98 

98 

96 

90 

89

Nov.

96 

98 

98 

95 

95

95 

95 

95 

94

93

92 

92 

92 

92 

92

92 

92 

90 

90 

90

90 

90 

92 

92 

92

90 

90 

89 

88 

88

Dec.

87 

87 

86 

86

86

86 

83 

82 

82 

81

81 

81 

81 

81 

81

82 

82 

83 

83 

83

83 

82 

82 

82 

82

83 

83 

83 

83 

83 

83

Jan.

83 

83 

83 

84 

84

86 

87 

88 

88 

88

88 

88 

88 

88

86

89 

88 

87 

86 

86

86 

86 

86 

BS 

84

84 

84 

84

82 

83 

81

Feb.

81 

81 

82 

83 

83

83 

82 

82 

81 

80

80 

78 

78 

77

76

74 

74 

74 

74 

74

74 

74 

74 

74 

74

74 

74 

74

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri

June 

July 

Augu 

Sept

Ha

nber. ...................................

lendar year 1949 

ary

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

Mar.

74 

74 

74 

75 

75

76 

76 

76 

76

76

76 

76 

76 

76 

75

75 

75 

75 

74 

74

74 

75 

75 

75 

75

75 

74 

73 

73 

73 

75

Apr.

80 

75 

75 

75 

75

76 

76 

76 

74 

73

71 

71 

71 

70

68

68 

67

64 

63

63

63 

63 

63 

63 

61

60 

60 

60 

59 

59

Secondfoot-days

2,916 

2,769 

2,573

30,706

2,654 

2,169 

2,321 

2,042 

2,043 

4,422 

3,574 

2,358 

2,520

32,361

Hay

58 

55 

54

53 

53

53 

53 

52 

52 

52

52 

52 

53 

53 

53

52 

52 

53 

55 

57

58 

59 

60 

71 

84

88 

93 

104 

113 

120 

126

Maximum

99 

98 

87

180

89 

83 

76 

80 

126 

170 

165 

81 

94

170

June

131 

140 

140 

132 

140

150

170 

166 

147 

135

146 

165 

161 

152 

146

149

156 

164 

163 

154

150 

166 

170 

158 

141

128 

119 

119

126 

138

July

148 

158 

156 

158 

156

149 

165 

160 

144 

142

136 

125 

117 

111

107

105 

101 

98 

95 

93

90 

90 

90 

88 

87

86 

87 

84 

84 

82 

82

Minimum

81 

88

81

55

81 

74 

73 

59 

52 

119 

82 

71 

70

52

Aug.

81 

80 

80 

80 

80

80 

78 

77 

77 

77

77 

77 

77 

77 

77

76 

76 

75 

74 

74

74 

74 

75 

75 

75

74

73 

73 

73 

71 

71

Mean

94.1 

92.3 

83.0

84.1

85.6 

77.5 

74.9 

68.1 

65.9 

147 

115 

76.1 

84.0

88.7

Sept.

71 

71 

71 

70 

70

70 

71 

74 

84 

83

81 

a81 

a82 

a87 

a87

a90 

92 

94 

92 

92

90 

90 

90 

90 

90

90 

90 

90 

93 

94

Runoff in 

acre-feet

5,780 

5,490 

5,100

60,900

5,260 

4,300 

4,600 

4,050 

4,050 

8,770 

7,090 

4,680 

5,000

64,170

a No gage-height record; discharge computed on basia of records for nearby streams.
BIG LOST RIVER BASIN 107

Sharp ditch near Mackay, Idaho

Location.--Water-stage recorder and artificial control, lat. 43 0 57', long. 113°39', in 

 sec. V, T. 7 N., R. 24 E., 1,600 feet downstream from head of ditch, three-quarters 

of a mile downstream from Mackay Reservoir, and 3| miles northwest of Mackay.

Records available --April 1939 to September 1950. June 1912 to October 1914 and March 

laia to April 1939 at site 1,400 feet upstream, above Hintze ditch.

Extremes. Maximum discharge during year, 39 second-feet July 28 (gage height, 1.47 feet): 

no now for long periods during fall and winter.

1912-14, 1919-50: Maximum discharge, 50 second-feet July 10, 1947 (gage height, 

1.63 feet); no flow at times.

Remarks Records good. Sharp ditch diverts from east side of Big Lost River in SE£ sec. 

12, T. 7 N., R. 23 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 ditch, which diverts from Sharp 

ditch above station, was reported by water-master to have carried 137 acre-feet during 

year (96 in June, 33 in July, and 8 in August).

Cooperation.--Water-stage recorder graph furnished by Water District No. 27.

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

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

30

31 

32 

23 

34 

35

26 

37 

38 

39 

30 

31

Oct.

0 

0 

0 

0 

0

0 

.6

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

Nov. Dec. Jan. Feb.

Month

ber. ....................................

Lendar year 1949

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

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

1.1

3.8

3.8 

4.0 

4.0 

4.0 

9.6

12 

13 

9.6 

6.6 

5.8

Secondfoot-days

0.6 

0 

0

3,080.7

0 

0 

0 

77.3 

612.3 

659 

828 

768 

400.6

3,345.8

May

14 

21 

23 

24 

24

24 

19 

9.3 

13 

16

16 

16 

16 

16 

16

17 

20 

20 

19 

20

20 

20 

21 

23 

23

23 

23 

24 

25 

24 

23

Maximum

0.6 

0 

0

41

0 

0 

0 

13 

25 

34 

37 

35 

27

37

June

22 

22 

22

21

21

22 

23

20 

16 

17

17 

17 

16 

16 

15

12 

13 

14 

17 

21

23 

24 

25 

28 

29

331

a33

h34 

a34 

334

July

334 

h34 

h34 

h34 

h34

h34 

h23 

h24 

h!6 

h!7

h!4 

hlO 

hlO 

h!9 

322

26 

25

25 

26 

27

28 

28 

28 

28 

28

28 

29 

34 

37 

36 

36

Minimum

0 

0 

0

0

0 ~ 

0 

0 

0 

9.3 

12 

10 

16 

.1

0

Aug.

35 

34 

34 

29 

22

20 

18 

17 

17 

16

17 

21 

19 

17 

16

16 

19 

21 

23 

25

29 

33 

32 

32 

31

30 

29 

29 

29 

29 

29

Mean

0.02 

0 

0

8.44

0 

0 

0 

2.58 

19.8 

22.0 

26.7 

24.8 

13.4

9.17

Sept.

27 

26 

25 

24 

23

22 

21 

22 

22

21

21 

21 

13 

6.8 

12

a7.0 

3.2 

7.7 

9.0 

6.4

5.8 

4.0 

8.2 

7.9 

9.6

11 

9.6 

4.1 

.1 

.2

Runoff In 

acre-feet

1 

0 

0

6,100

0 

0 

0 

153 

1.210 

1,310 

1,640 

1,520 

794

6,630

a No gsge-helght record; discharge computed on basis 

h Computed from stsff-gsge readings.

of flow during adjscent periods.
108 RILEY CREEK BASIN

Riley Creek Springs near Hagerraan, Idaho

Location.--Water-stage recorder, lat. 42°45'40", long. 114°51'30", in SW^NE^ sec. 6, T. 

8 S., R. 14 E., 50 feet above junction with Lewis Spring, 300 feet downstream from 

U. S. Fish Hatchery, and 5 miles southeast of Hagerman. Altitude of gage, 2,960 feet 

(from topographic map).

Records available. March to September 1950.

Extremes.--Maximum discharge during period, 38 second-feet July 12 (emptying fish ponds); 

maximum gage height, 1.11 feet Apr. 11, May 25, Sept. 29 (emptying fish ponds); minimum 

discharge, 23 second-feet Mar. 28 (gage height, 0.80 foot), filling fish ponds.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Small domestic diversion above station. Some intermingling with Lewis Spring water 

above station through fish hatchery. Amount of Lewis Spring water passing station was 

small during year. Slight regulation from filling and emptying of fish ponds 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. Nov. Dec. Jan. Feb.

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Th

lendar year

s period ................................

Mar.

29 

29 

29 

29 

29

29 

29 

29 

29 

29

29 

29 

29 

29 

29

30 

30 

30 

30

30

30 

30 

30 

30 

30

30 

h31 

30

30 

30

30

Apr.

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30

30

30 

30 

30 

30 

30

30 

30 

30

30 

30

30 

30 

30 

30 

30

Secondfoot-days

916 

900 

968 

909 

944 

936 

929

-

May

30 

30 

30 

30 

31

32

31 

32 

32 

32

32 

32 

32 

32 

32

32 

32

31 

31 

31

31 

31 

31 

31 

31

31

31 

31 

31

31 

31

Maximum

31 

30 

32 

32 

32 

31 

32

-

June

31 

31 

30

30 

30

31 

31 

31 

31 

31

32

30 

30

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30

July

30 

30 

30 

30 

31

30 

30 

30 

30 

32

32 

31 

30 

30 

30

30 

30 

31 

31 

31

31 

31 

31 

31 

30

31

30 

30 

30 

30 

30

Minimum

29

30 

30 

30 

30 

30 

30

-

Aug.

30 

30 

31 

31

31

31 

30 

30 

30 

30

30

31 

30 

30 

30

30 

30 

31 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

30 

30

Mean

29.5 

30.0 

31.2 

30.3

30.5 

30.2

31.0

-

Sept.

30 

30 

30 

30 

30

31 

31 

31 

31 

31

31 

31 

31 

31 

31

32 

32 

32 

32

31

31 

31 

31 

31 

31

31 

31 

31 

31 

31

Runoff in 

acre-feet

1,820 

1,790 

1,920 

1,800 

1,870 

1,860 

1,840

12,900

h Computed from ataff-gage reading.

Note . Ho gage-height record Mar. 1-26; discharge computed on baals of 1 discharge meaaurerr 

records for subsequent period.
BIG WOOD RIVER BASIN 109

Big Wood River near Ketchum, Idaho

Location. Staff gage, lat. 43°48", long. 114°26', In sec. 4, T. 5 M., R. 17 E. , half a

 mile upstream from North Pork and 8 miles northwest of Ketchum. Altitude of gage, 

6,240 feet (from topographic map).

Drainage area.--137 square miles.

Records available. May 1948 to September 1950.

Extremes.--Maximum discharge observed during year, 732 second-feet June 21 (gage height,

 2.42 feet); minimum observed, 24 second-feet Dec. 11 (gage height, 0.09 foot).

1948-50: Maximum discharge observed, 1,200 second-feet June 3, 1948 (gage height, 

3.20 feet); minimum, that of Dec. 11, 1949.

Remarks.--Records fair. Gage read once daily. No diversion or regulation. 

Cooperation.--One discharge measurement furnished by Water District No. 7 AB.

Rating table, water year 1949-50, except periods of Ice effect

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

(Shifting-control method used Oct. 1 to Nov. 13)

0.1 

.2 

.3 

.4

0.6

.8

1.0

1.3

83

133

167

347

1.6 

2.0 

2.5

341

516

776

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

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.

59

59

58

58

71

62

63

60

60

62

59

59

58

58

58

58

56

56

56

56

56

56

58

58

53

53

53

56

56

55

56

Nov.

53

52

52

50

52

51

53

53

58

53

65

53

71

73

58

56

58

63

74

76

53

46

71

74

63

60

81

85

65

*66

-

Dec.

66

65

36

b55

60

51

59

53

53

30

630

31

41

38

42

50

49

51

51

37

52

51

53

52

42

52

53

48

43

52

44

Jan.

49

49

32

b35

b35

b40

50

50

49

48

48

46

48

41

39

46

50

49

*49

51

53

56

60

45

37

b35

b40

45

b42

b42

b42

Month

October ... . .............. . November ............ . ... .

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

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

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

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

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

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

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

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

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

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

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

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

Feb.

b40

b45

b45

52

49

49

48

46

46

44

48

40

46

48

46

46

44

39

41

46

39

41

48

46

48

39

48

46

_

_

-

Second 

foot-days

1 795

1^837

1,490

50,440

1,401

1,263

1,416

3,317

12,086

16,416

8,606

3 492

2^738

55,857

Mar.

42

46

50

51

48

43

45

46

43

46

44

e35

36

49

50

51

48

48

*46

46

49

46

37

46

45

49

46

51

e35

50

49

Maximum

71

8E

66

721

6C

52

53

236

631

732

556

182

14C

732

Apr.

55

56

53

60

63

49

50

51

50

50

53

62

71

78

80

98

122

126

131

149

219

236

216

174

162

158

172

162

153

158

-

May

165

149

144

140

137

140

135

133

156

187

241

273

394

498

546

546

566

521

426

404

435

566

631

606

541

531

556

591

551

576

601

Minimum

53

46

30

30

32

39

35

49

133

408

142

83

80

30

June

616

631

556

536

601

666

666

581

476

444

494

489

471

471

466

502

566

621

611

631

732

672

621

556

448

408

422

444

502

516

-

Mean

57 . 9

6l!2

48.1

138

45.2

45.1

45.7

111

390

547

278

113

91.3

153

July

556

531

507

448

430

408

399

399

341

369

294

276

264

262

241

230

225

214

206

197

187

190

172

167

162

167

162

158

151

151

142

Per 

square 

mile

0.423

.447

' 351

1.01

 330

 329

.314

. 810

2 . 85

3 99

2 O3

 825

.666

1.12

Aug.

133

1

1

1

33

33

37

182

146

1

1

3

35

26

24

122

129

3

3

3

24

18

14

108

108

3

3

10

02

98

98

94

96

96

93

94

92

92

91

89

87

83

Sept.

81

81

81

80

80

80

80

89

140

122

106

100

9t

9u

94

94

94

92

91

91

89

91

87

83

83

87

87

858"

eo

-

Runoff

Inches

0.49

.50

.40

13.70

. 38

.34

. 38

.90

4!46

2 34

. 95

!?4

15.16

Acre-feet

3,560

3,640

2,960

100,000

2,780

2,500

2,810

6,580

23 97O 32)550

17,070

6,930

5,430

110,800

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

e Gage reading not representative of mean for dayj discharge computed on basis of weather records 

and records for combination of Big Wood River and Big Wood Slough at Halley, and Warm Springs Creek 

at Quyer Hot Springs, near Ketchum.
110 BIG WOOD RIVER BASIN

Big Wood River at Hailey, Idaho,

Location.--Water-stage recorder, lat. 43°31', long. 114°20', in Sw£ sec. 9, T. 2 N., R. 18 

E., at steel highway bridge a quarter of a mile southwest of Hailey and three-eighths 

of a mile above Croy Creek.

Drainage area. 640 square miles (total area above river and slough stations).

Keoords available.--July to December 1889, June 1915 to September 1950.

Average discharge". 35 years, 299 second-feet. Average combined discharge of Big Wood 

Kiver ana Big Wood Slough, 35 years, 408 second-feet.

Extremes. Maximum discharge during year, 1,880 second-feet June 7; maximum gage height, 

b.lB feet June 22; minimum discharge, 22 second-feet Jan. 14 (gage height, 1.23 feet, 

ice jam upstream).

1889, 1915-50 (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. 20, 22, 

23, 1931, Oct. 25, 1937.

1889, 1915-50 (combined): Maximum daily discharge, 4,500 second-feet June 6, 7, 1938 

minimum daily, 15 second-feet Dec. 27, 1921.

Remarks. Records good. Water diverted around station through Big Wood Slough (see p. 117) 

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 and one discharge measurement furnished by 

Water District No. 7 AB.

Rating table, water year 1949-50, except periods of ice effect

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

(Shifting-control method used June 5 to Sept. 30)

1.5 50 3.0 486 

1.6 65 3.5 762 

1.9 120 4.0 1,060 

2.2 192 4.5 1,380 

2.5 282 5.1 1,830

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

87 

87 

82 

79 

79

89 

89 

91 

91

91

89 

91 

93 

91 

89

89 

89 

89 

89 

89

87 

86 

82 

79 

72

75 

84 

87 

89 

82 

82

Nov.

84 

87 

87 

86 

84

84 

84 

91 

104 

108

95

96 

93 

93 

93

93 

91 

91 

89 

87

87 

86 

95 

108 

108

102 

106 

149 

*127 

120

Dec.

106 

108 

96 

79 

95

89 

86 

93 

87 

82

68 

62 

68 

70 

70

77 

79 

82 

84 

b70

89 

114 

124 

129 

b!06

116 

127 

124 

124 

127 

124

Jan.

124 

124 

b!04 

b95 

b93

108 

124 

127 

127 

127

129 

124 

127 

b!04 

bl!4

127 

135 

*135 

135 

135

142 

152 

156 

131 

120

b!04 

124 

133 

129 

bl!2 

bl!6

Feb.

bl!4 

b!33 

b!20 

138 

135

138 

129 

127 

127 

118

122 

116 

120 

122 

122

124 

122 

116 

114 

120

112 

112 

118 

120 

122

122 

122 

116

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

uary. ...................................

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

Mar.

112 

118 

124 

122 

127

131 

120 

122 

129 

129

120 

110 

108 

120 

124

124 

135 

*127 

129 

120

127 

129 

118 

131 

133

124 

124 

118 

112 

118 

131

Apr.

140 

169 

166 

127 

110

114 

118 

138 

138 

142

149 

171 

212 

241 

250

313 

452 

512 

501

630

821 

880 

786 

676 

619

602 

619 

591 

548 

512

Secondfoot-days

2,668 

2,908 

2,955

112,350

3,837 

3,421 

3,816 

11,447 

32,712 

40,840 

21,894 

7,926 

6,668

141,092

May

542 

522 

476 

448 

448

429 

420 

425 

434 

467

553 

704 

934 

1,140 

1,320

1,360 

1,530 

1,540 

1,280 

1,130

1,140 

1,390 

1,620 

1,680 

1,510

1,390 

1,460 

1,610 

1,550 

1,630 

1,630

Maximum

93 

149 

129

1,620

156 

138 

135 

880 

1,680 

1,810 

1,330 

369 

323

1,810

June

1,660 

1,680 

1,480 

1,420 

1,560

1,740 

1,810 

1,580 

1,310 

1,180

1,180 

1,220 

1,160 

1,130 

1,110

1,160 

1,380 

1,410 

1,390 

1,460

1,570 

1,700 

1,550 

1,320 

1,130

1,010 

1,000 

1,070 

1,190 

1,280

July

1,310 

1,330 

1,200 

1,140 

1,080

1,040 

1,010 

1,020 

898 

898

874 

780 

733 

704 

676

641 

619 

597 

564 

512

476 

452 

434

416 

398

378 

365 

342 

342 

338 

327

Aug.

316 

302 

309 

313 

349

369 

327 

292 

279 

285

292 

331 

320 

289

266

250 

238 

235 

229 

217

214 

209 

206 

206 

203

193 

187 

182 

176 

174 

169

Minimum Mean

72 86.1 

84 96.9 

62 95.3

8 308

93 124 

112 122 

108 123 

110 382 

420 1,055 

1,000 1,361 

327 706 

169 256 

142 222

62 387

Sept.

166 

164 

159 

156 

156

149 

142 

161 

289 

323

285 

266 

244 

250 

263

260 

256 

256 

247 

247

238 

235 

235 

226 

220

209 

212 

214 

217 

223

Runoff In 

acre-feet

5,290 

5,770 

5,860

222,800

7,610 

6,790 

7,570 

22,700 

64,880 

81,000 

43,430 

15,720 

13,230

279,900

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
BIG WOOD RIVER BASIN 111

Combined discharge, In second-feet, of Big Wood River and Big Wood Slough at Halley, Idaho 

water year October 1949 to September 1950

Day

1

z

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

123 

122 

123 

122 

123

137 

137 

144 

146 

147

144 

147 

151 

149 

144

144 

145 

147 

145 

144

139 

136 

133 

130 

114

116 

135 

140 

143 

133 

13Z

Nov.

137 

141

143 

142 

138

138 

140 

L53 

176 

174

150 

152 

145 

145 

146

146 

144 

144 

141 

139

139 

136 

151 

168 

168

158 

165 

222 

192 

184

Dec.

165 

168 

150 

125 

149

141 

135 

145 

137 

128

105 

92 

105 

109 

109

120 

124 

128 

131 

108

115 

120 

130 

135 

112

122 

133 

130 

130 

133 

130

Jan.

130 

130 

110 

101 

99

114 

130 

133 

133

133

135 

130 

133 

110 

120

133 

141 

141

141 

141

148 

158 

162 

137 

126

110 

130 

139 

135 

118 

122

Feb.

121 

140 

127 

145 

142

145 

136 

134 

134 

125

129 

123 

127 

129 

129

131 

129 

123 

121 

127

119 

119 

125 

127 

129

129 

129 

123

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949........ ...............

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

Mar.

120 

126 

132 

130 

134

138 

128

130 

136 

136

127 

117 

115 

127 

131

131 

142 

134 

136 

127

134 

136 

125 

138 

141

131 

132 

126 

119 

126 

139

Apr.

149 

178 

175 

159 

162

168 

176 

201 

202 

207

217 

244 

297 

336 

351

394 

507 

561 

547 

663

870 

931 

833 

719 

659

642 

660 

632 

587 

549

Secondfoot-days

4,235 

4,617 

3,964

127,506

4,023 

3,617 

4,044 

12,976 

34,063 

42,140 

23,024 

8,178 

7,000

151,881

May

580 

559 

511 

482 

482

462 

452 

457 

468 

516

609 

768 

987 

,200 

,390

,420

,580 

,590. 

,320 

,170

,180 

,440 

,670 

,720 

,550

,430 

,500 

,650 

,590 

,670 

,660

Maximum

151 

222 

168

1,640

162 

145 

142 

931 

1,720 

1,850 

1,410 

386 

349

1,850

June

1,690 

1,710 

1,510 

1,450 

1,590

1,780 

1,850 

1,620 

1,340 

1,210

1,210 

1,250 

1,190 

1,160 

1,160

1,240 

1,430 

1,460 

1,440 

1,510

1,620 

1,750 

1,600 

1,370 

1,170

1,050 

1,040 

1,120 

1,260 

1,360

July

1,400 

1,410 

1,270 

1,210 

1,140

1,100 

1,070 

1,090 

958 

953

928

829 

771 

736 

705

667 

645 

621 

585 

531

493 

468 

450 

430 

412

391 

375 

351 

352 

348 

335

Minimum

114 

136 

92

92

99 

119 

115 

149 

452 

1,040 

335 

173 

154

92

Aug.

323 

313 

322

326 

365

386 

341 

303 

288 

294

302 

344 

333 

299 

274

258 

244

242 

236 

222

218 

214

210 

210 

207

196 

191 

186 

180 

178 

173

Mean

137 

154 

128

349

130 

129 

130 

433 

1,099 

1,405 

743 

264 

233

416

Sept.

169 

167 

162 

159 

159

154 

155 

174 

305 

349

313 

293 

273 

283 

282

279 

275 

269 

254 

254

242 

240 

240 

231 

224

213 

216 

218 

221 

227

Runoff In 

acre-feet

8,400 

9,160 

7,860

252,500

7,980 

7,170 

8,020 

25,740 

67,560 

83,580 

45,670 

16,220 

13,880

301,200
112 BIG WOOD RIVER BASIN

Big Wood River near Bellevue, Idaho

Location,, Water-stage recorder, lat. 43°19', long. 114°21', in sec. 20, T. IS., R. 18 

E., if miles upstream from flow line of Magic Reservoir, 3 miles upstream from Camas 

Creek, and 10 miles southwest of Bellevue.

Drainage area. 823 square miles.

Records available.--July 1911 to September 1950 (except winters of 1942 and prior to 1940).

Extremes. Maximum discharge during year, 1,350 second-feet June 22; maximum gage height, 

a.Sb feet June 7 (backwater from debris); minimum discharge, 34 second-feet Jan. 13; 

minimum gage height, 1.62 feet Mar. 13.

1911-50: Maximum discharge recorded, 3,660 second-feet June 16, 1921 (gage height, 

6.07 feet), from rating curve extended above 8,800 second-feet; minimum recorded, 

7 second-feet Apr. 14, 1932 (gage height, 1.10 feet).

Remarks. Records good. Many diversions above station for irrigation.

Cooperation. Water-stage recorder inspected and six discharge measurements furnished by 

water District No. 7 AB.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

59 

59 

59 

59 

60

60 

60 

66 

68 

66

62 

64 

64 

66 

62

60 

59 

59 

59 

60

57 

57 

56 

56 

56

56 

56 

54 

56 

54 

56

Nov.

52 

52 

52 

52 

52

52 

52 

56

68

74

62 

64 

66 

68 

68

66 

66 

66 

64 

62

60 

62 

68 

82 

82

82 

87 

97 

104 

*100

Dec.

94 

90 

90 

80 

76

74 

72 

70 

70 

68

56 

51 

48 

48 

46

46 

46 

46 

46 

b45

45 

a45 

a45

a44 

a44

a43 

a43 

43 

42 

42 

42

Jan.

41 

40 

b40 

b40 

b40

b40 

40 

40 

40 

38

40 

40 

40 

b40 

b41

45 

*43 

41 

40 

40

42 

46 

48 

46 

b46

b42 

42 

b40 

b40 

b40 

b40

Feb.

b40 

b40 

a40 

a40 

a40

38 

38 

37 

38

38

38 

b38 

37

37 

37

38 

38 

38 

38 

37

38 

38 

38 

38

40

40 

40 

40

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

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

lendar year 1949

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

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

Mar.

40 

40 

41 

41 

42

49 

45 

42 

42 

43

43 

42 

43 

42 

41

41 

*49 

57 

54 

49

48 

48 

48 

48 

51

49 

48 

48 

46 

48 

56

Apr.

87 

139 

143 

139 

139

169 

189 

236 

245 

236

232 

245 

268 

315 

330

360 

445 

529 

529 

561

692 

843 

834 

715 

649

614 

587 

574 

561 

529

Secondfoot-days

1,845 

2,038 

1,740

65,518

1,281 

1,077 

1,424 

12,134 

21,376 

25,768 

11,857 

3,431 

2,684

86,655

May

554 

517 

457 

421 

398

382 

366 

360 

350 

355

376 

427 

511 

692 

879

944 

991 

1,020 

817 

621

568 

700 

888 

1,050 

991

861 

879 

1,000 

1,010 

991 

1,000

Maximum

68 

104 

94

1,140

48 

40 

57 

843 

1,050 

1,270 

934 

15Q 

143

1,270

June

982 

1,000 

944 

861 

906

1,050 

1,210 

1,230 

972 

753

708 

708 

628 

561 

554

587 

753 

852 

888 

944

1,060 

1,270 

1,220 

1,020 

777

628 

587 

614 

692

809

Minimum

July

888 

934 

870 

817 

730

685 

628 

700 

580 

561

548 

505 

427 

376 

330

272 

236

210 

205 

172

154 

126 

110 

107 

104

97 

97 

97 

97 

94 

100

54 

52 

42

38

38 

37 

40 

87 

350 

554 

94 

78 

72

37

Aug.

100

104 

113 

139 

129

150 

143 

133 

129 

123

123 

133 

133 

123

113

102 

100 

100 

92 

90

82 

78 

80 

90 

97

100 

110 

113 

110 

102 

97

Mean

59.5 

67.9 

56.1

180

41.3 

38.5 

45.9 

404 

690 

859 

382 

111 

89.5

237

Sept.

92 

97 

97 

92 

90

84 

87 

90 

94 

123

143 

123 

100 

97 

97

97 

90 

87 

82 

82

78 

74 

74 

74 

74

72

72 

72 

72 

78

Runoff in 

acre-feet

3,660 

4,040 

3,450

129,900

2,540 

2,140 

2,820 

24,070 

42,400 

51,110 

23,520 

6,810 

5,320

171,900

Winter discharge measurement made on this day. 

a Ho gage-height record; discharge computed on basis of weather records and records for Magic Reservoir and stations at Hailey and near Ketchum. 

b Stage-discharge relation affected by Ice.
BIG WOOD RJVER BASIN 

Magic Reservoir near Richfield, Idaho

113

Location --Staff gage at dam on Big Wood River, lat. 43°15', long. 114"22' , in NESErsec. 18, 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 f"t b°low 

mean sea level.

Drainage area.--1,500 square miles.

Records available. February to April 1909 (gage heights only), April 1909 to September 

i9bu.

Extremes --Maximum contents observed during year, 193,100 acre-feet Apr. 26, 27 May 25 

JgaphMght tlVffity 135 ' 4 fSefc): mlnlmUI11 obssrved ' 73-840 acre-feet Oct. 1,2

T5C 1 ?0?"5?; M^1 contents observed, 193,500 acre-feet June 26-28, 1944 (gage height 

US.5 feet); no storage for several days in 1909, 1919, 1920, 1924, 1928, 1935?

Remu rrf;r?eS?Q^ ir P S f °?Td by sarth- arld rock -fm dam, completed in 1909, and raised 

5-Teet in 1917. Capacity, 191,500 acre-feet between gage heights 21.4 feet (2 9 f°et 

above bottom ol outlet pipe) and 135.0 feet (top of 5-foot flashboards). Dead storage 

Co S?;,, !*" iS tussd . for irrigation of lands in Carey Act project of Big Wood Canll 

Co. Figures given herein represent usable contents including bank storage. Gage read

c^SSffr^mSmS^adlSf ^ ^^ ^ " ^ ^ ^^ and --^contents 

Cooperation. Gage readings and yield table furnished by Water District No. 7 AB.

Contents, in acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

73,840

73,840

74,050

74,250

74,460

74,460

74,660

74,870

75,080

75,080

75,280

75,490

75,700

75,700

75,900

76,100

76,100

76,320

76,320

76,520

76,520

76,730

76,940

76,940

77,150

77,150

77,360

77,570

77,570

77,780

77,780

Nov.

77,980

77,980

77,980

78,190

78,400

78,610

78,820

78,820

79,030

79,240

79,460

79,670

79,880

80,090

80,300

80,520

80,520

80,730

80,940

80,940

80,300

79,670

79,030

79,030

79,030

79,240

79,460

a79,800

80,090

80,090

-

Dec.

80,300

80,730

80,940

81,160

81,370

81,590

81,800

82,020

82,240

82,450

82,450

82,670

82,880

83,100

83,100

83,320

83,530

83,750

83,970

84,190

84,190

84,190

84,410

84,410

84,410

84,630

84,850

84,850

85,070

85,070

85,290

Jan.

85,510

85,730

85,950

86,170

86,170

86,400

86,400

86,400

86,620

86,620

86,840

86,840

87,060

87,290

87,510

87,730

87,730

87,960

88,180

88,410

88,640

88,640

89,320

89,540

89,5*0

89,770

89,990

90,220

90,450

90,450

90,680

Feb.

90,680

90,680

90,910

91,140

91,370

91,600

91,830

91,830

92,060

92,060

92,290

92,520

92,750

92,750

92,980

92,980

92,980

93,220

93,450

93,680

93,920

93,920

94,150

93 , 920

94,150

94,150

94,380

94,620

_

_

-

Mar.

94,620

94,850

95,090

95,090

95,320

95,560

95,800

96,270

96,500

96,740

96,980

97,460

97,460

97,690

97,930

98,170

98,650

99,130

99,620

100,100

100,600

100,800

101,300

101,800

102,300

103,000

103,500

103,800

103,800

104,000

104,800

Apr.

1105,400

106,000

105,800

105,800

105 , 500

105,300

105,800

106,000

107,800

110,300

112,900

116,000

120,900

127,400

133,900

140,400

148,100

158 , 300

166,900

172,600

177,000

181,500

184,900

188,400

191,100

193,100

193,100

192,300

192,700

192,700

-

Hay

192,700

192,300

192,300

192,700

3192,000

191,100

190,700

190,700

191,100

191,100

191,100

191,900

192,300

192,300

192,300

192,300

192,700

192,300

191,900

191,100

191,100

190,700

191,900

191,100

193,100

192,300

191,900

191,100

191,100

191,100

191,100

June

191,100

191,100

191,100

191,900

191,100

190,700

191,100

191,100

191,100

191,100

190,700

190,300

189,900

189,500

189,500

189,200

189,200

189,200

189,500

190,300

186,800

191,900

192,300

193,100

193,100

192,700

192,300

192,300

191,900

191,900

-

July

192,300

192,700

192,700

192,700

192,700

192,300

191,900

191,100

191,100

191,100

190,700

189,900

189,900

189,500

188,800

187,600

186,400

184,900

184,100

183,400

182,200

180,700

179,200

178,100

176,600

175,500

174.400

173,300

171,900

170,400

168,700

Aug.

167,200

164,800

164,100

162,700

161,300

160,000

158,900

157,900

156,300

155,300

 154 , 300

153,000

152,300

151,000

149,700

148,800

147,800

146,900

145,600

144,400

143,100

142,200

141,000

140,100

138,900

138,000

136,800

136,000

135,100

134,500

133,600

Sept.

132,800

131,400

130,200

129,400

128,800

127,400

126,300

125,500

124,700

123,600

122,700

122,200

121,400

120,600

119,800

119,200

118,400

117,600

117,100

116,300

115,500-

114,700

113,900

113,200

112,400

111,600

110,800

110,100

109,300

108 , 500

a No gage-height record; contents c-rcputed on basis of measured inflow and outflow

Monthly gage height and contents, water year October 1949 to September 1950

Date

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

Calendar year 1949. .....

Feb. 28....... ............

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

Water year 1949-50......

Gage height 

(feet)

93.6

98.9

-

101.3

103.0

134.9

108.7

-

Contents 

(acre-feet)

74,050

80,090

85,290

-

90,680

94,620

104,800

191,100

168,700

108,500

-

Change in contents 

during month 

(acre-feet)

_

+3,730

+2,310

+5 , 200

-16,710

+5,390

+3,940

+10,180

-1,600

+800

-23,200

-35,100

-25,100

+34,450
114 BIG WOOD RIVER BASIN

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. 18 

E. , half a mile downstream from Magic Dam and 18 miles northwest of Richfield.

Records available. April 1911 to September 1950. 

Average discharge.--38 years (1912-50), 401 second-feet.

Extremes. Maximum discharge during year, 2,360 second-feet Apr. 27 (gage height, 6.74 

reet); minimum, 7 second-fset Dec. 20 to Feb. 3, Feb. 7-25.

1911-50: 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. Flow regulated 

by Magic Reservoir (see preceding page).

Cooperation. Water-stage recorder inspected and five discharge measurements furnished 

Dy water District No. 7 AB.

Discharge, in second-feet, water year October 1949 to September 195O

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.

13 

13 

13 

13 

13

13

13 

13 

12 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

10 

10 

10

11 

11

11 

11 

11 

11

10 

10

Nov.

10 

10 

10 

10 

10

10 

10 

10 

10 

10

10 

10 

10 

10 

10

10 

10

11

126 

371

413 

413 

165

B 

B

B 

B 

B 

B 

B

Dec.

B 

B 

B 

B 

B

8 

B 

B 

B 

8

8 

B 

B 

B 

B

B 

B 

B 

8 

7

7 

7

7 

7 

7

7 

7 

7 

7 

7 

7

Jan. Feb.

7 

7 

7 

B 

B

B

B 

8 

B

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

ter year 1949-5O .......................

Mar.

B 

B 

8 

B 

B

B 

8 

B 

B 

B

B 

B 

B 

B 

B

B 

B 

8 

B 

B

B 

B 

B 

B 

B

B 

B 

B 

B 

B 

B

Apr.

9 

368 

592 

563 

735

746 

746 

746 

746 

757

757 

762 

774 

790 

801

812 

828 

840 

850 

856

862 

867 

889 

900 

1,110

1,720 

2,030 

1,520 

1,710 

1,650

Secondfoot-days

353 

1,725 

236

129,021

217 

202 

248 

27,336 

41,347 

30,881 

24,299 

20,433 

15,052

162,329

May

,630 

,660 

,570 

,560 

,470

1,320 

988 

746 

757 

740

752 

784 

1,130 

1,350 

1,390

1,420 

1,810 

1,860 

1,720 

1,430

1,270 

950 

1,190 

1,410 

1,670

1,680 

1,540 

1,440 

1,380 

1,380 

1,350

Maximum

13 

413

B

1,410

7 

8 

B 

2,030 

1,860 

1,460 

878 

784 

587

2,030

June

,390 

,340 

,350 

,350 

,350

,210 

,340 

,460 

,300 

,O9O

,O5O 

,020 

966

828 

867

806 

784 

790 

779 

768

779 

872 

982 

1,110 

1,030

922 

878 

840

BIB 

812

July

850 

867 

878 

878 

878

845 

801 

796 

790 

790

806 

816 

784 

784 

762

752 

735 

735 

735 

746

730 

740 

735 

735 

735

735 

735 

768 

790 

784 

784

Minimum

10 

8

7

7

7 

7 

B 

9 

740 

768 

730 

577 

195

7

Aug.

784 

784 

779 

779 

779

779 

757 

740 

719 

698

667 

646 

646 

626 

616

616 

616 

616 

616 

616

597 

587 

587 

587 

606

621 

616 

602 

587 

587 

577

Mean

11.4 

57.5 

7.6

353

7.0 

7.2 

B.O 

911 

1,334 

1,029 

784 

659 

502

445

Sept.

582 

587 

587 

587 

587

587 

582 

582 

558 

544

534 

502 

488 

493

488

479 

470 

470 

466 

466

466 

461 

461 

461 

466

466 

474 

484 

479 

195

Runoff in 

acre -feet

7OO 

3,420 

468

255,900

430 

401 

492 

54,220 

82,010 

61,250 

48,200 

40,530 

29,860

322,000

Note. No gage-height record Feb. B to 

f gates in dam.

15; discharge computed on basis of record of operation
BIG WOOD RIVER BASIN 115

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, 3j 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 1950 (fragmentary 1922-37, 1941, 1942).

Extremes.--Maximum discharge during year, 1,390 second-feet Apr. 28 (gage height, 6.49 

feetj; no flow Oct. 6.

1916-50: 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 Dec. 5 to about Feb. 28, which are poor. Diversions above and below station for irrigation. Plow regulated by Magic Reservoir (see 

p. 113) and affected by deliveries from canals diverting from Snake River at Milner.

Cooperation.--Two discharge measurements furnished by Water District No. 7 AB.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

55 

27 

38 

22 

4

O 

9 

39

61 

46

40 

60 

76 

78 

71

64 

29 

10 

6 

6

9 

23

27 

27 

22

20 

23 

120 

97 

84 

79

Nov.

76 

76 

82 

76 

68

62 

60 

62 

69 

82

78 

77 

62 

57 

57

58 

68 

73 

67 

64

58 

59 

116 

168 

165

104 

82 

76 

69 

76

Dec.

noi

101 

100

beo

b90

b80 

b70 

b70 

b70

> b40

Jan.

 b4O

(*) 

39 

42 

32 

32

48

68 

b200 

b!70 

151

blOO 

b95 

76 

55 

b50 

b45

Feb.

b40 

b35 

b30 

27 

b50

b!50 

b250 

226

189 

133

127 

101 

86 

69 

72

157 

b220 

b250 

b240 

b260

b200

b!70 

152 

180 

528

378 

394 

256

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-5O .......................

Mar.

224 

137 

157 

207 

239

252 

186 

201 

174 

177

157 

123 

134 

129

*112

104 

140 

673 

358 

563

341 

255 

201

176 

416

628 

277 

£07 

148 

122 

100

Apr.

228 

303 

195 

261 

450

678 

678 

711 

672 

642

685 

685 

711 

698 

688

711 

652 

718 

762 

894

845 

838 

875 

898 

776

695 

986 

1,300 

-997 

1,130

Secondfoot-days

2,349

1,642

43,362

1,843 

4,970 

7,318 

21,362 

15,071 

7,290 

2,171 

3,047 

4,633

72,968

May

1,040 

1,010 

933 

842 

791

791 

702 

550 

270 

240

213 

178

152 

172 

434

436

414 

657 

735 

639

439 

296 

148 

44 

308

577 

547 

472 

396 

326 

319

Maximum

120 

168 

101

1,320

2OO 

528 

673 

1,300 

1,040 

427 

126 

158 

280

1,300

June

303

297 

285 

303 

310

268 

221 

301 

427 

353

239

170 

165 

177 

168

174 

176 

158 

162 

164

172 

202 

221 

244 

281

390 

319 

275 

215

150

Minimum

July

126 

122 

109 

91

81

88 

81 

71 

58 

67

81 

87 

87 

99 

92

84 

88 

83 

70 

64

61 

62 

56 

53 

39

34 

22 

19 

27 

29 

40

0 

57

0

27 

100 

195 

44 

150 

19 

50 

42

0

Aug.

57 

66 

67 

86 

106

141 

158 

151 

129 

120

130 

137

157 

141 

147

130 

119 

105 

82 

83

82 

67 

58 

57 

57

50 

58 

79 

81 

77 

69

Mean

41.0 

78.3 

53.0

119

59.5 

178 

236 

712 

486 

243 

7O.O 

983 

154

200

Sept.

57 

49 

46 

48 

42

42 

44 

61 

110 

110

113 

119

171 

198 

198

204 

208 

220 

253 

266

256 

208 

210 

210 

188

178

164 

165 

215 

280

Runoff In 

acre-feet

2,520 

4,660 

3,260

86,020

3,660 

9,860 

14,520 

42,370 

29,890 

14,460 

4,310 

6,040 

9,190

144,700

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
116 BIG WOOD RIVER BASIN

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

Location.--Water-stage recorder, lat. 43°41', long. 114°25', in NE^ sec. 15, T. 4 N., R. 17 

E., 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 1950.

Extremes. Maximum discharge during year, 415 second-feet May 22 (gage height, 2.76 feet); 

minimum, 8 second-feet Jan, 14 (gage height, 0.71 foot), ice jam upstream.

1940-50: 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 station for irrigation.

Rating table, water year 1949-50 (gage height. In feet, 

and discharge, In second-feet)

0.9 

1.0 

1.2 

1.4

1.7 

2.0 

2.3 

2.7

120

183

264

393

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

34 

34 

34 

a34 

a40

a34 

a34 

a34 

a34 

34

34 

33 

33 

32 

32

33 

31 

32 

32 

32

31 

31 

31 

31 

32

31 

31 

31 

32 

30 

30

Nov.

31 

30 

30 

30 

30

30 

30 

32 

33

31

29 

33

29

31 

31

32 

a32 

a34 

a38 

a38

a32 

a30 

a3S 

a37 

a35

a35 

a45 

a47 

42 

42

Dec.

32 

36 

27 

25 

31

30 

29 

30 

29 

24

21 

21 

24 

24 

26

28 

28 

29 

29 

23

28 

27 

31 

30 

24

30 

30 

28 

28 

29 

27

Jan.

29 

27 

19

18 

18

22 

29 

29 

29 

28

27 

26 

27 

20 

23

29 

30 

30 

29 

30

33

36 

33 

27 

23

23

27 

29 

25 

29

28

Feb.

27 

27 

27 

27 

29

31 

30 

29 

28 

25

27 

24 

27 

26

25

25 

24 

24 

24 

27

23 

24 

26 

25 

25

25 

27 

24

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

24 

27 

28 

27 

29

31 

28 

30 

29 

29

27 

24 

32 

30 

30

28 

31 

29 

29 

29

29 

30 

28 

31

31

28 

30 

28 

25 

29 

33

Apr.

37 

45 

42 

39 

38

38 

39 

43 

42 

43

46 

56 

71 

77 

77

94

122 

126 

118 

143

188 

188 

158 

126 

115

116 

124 

115 

106 

97

Secondfoot-days

1,011 

1,014 

858

25,419

832 

732 

893 

2,669 

7,216 

7,613 

2,995 

1,450 

1,181

28 , 464

May

102 

97 

91 

86 

84

80 

78 

80 

82 

96

120 

167 

227 

285

316

f322 

f332

316 

261 

244

27O 

325 

f376 

f376 

335

313 

325 

355 

345 

368 

362

Maximum

40 

47 

36

386

36 

31 

33 

188 

376 

355 

178 

64 

55

376

June

351 

355 

319

310 

328

351 

351 

300 

261 

241

238 

241 

232 

227 

227

238 

255 

27O

261 

255

258 

258 

241 

219 

188

169 

162 

162 

169 

176

July

178 

178 

167 

156 

152

139 

135 

130 

120 

118

109 

100 

96 

89

86

82 

78 

76 

72

71

68 

67 

64 

61 

60

58 

60 

58 

56 

56 

55

Minimum

30 

29 

21

21

18 

23 

24 

37 

78 

162 

55 

38 

34

18

Aug.

53 

52 

52 

53 

64

60 

53 

50 

49 

49

52 

53 

53 

50 

46

45 

44 

44 

43 

43

42 

41 

42 

42 

41

40 

40 

39 

39 

38 

38

Mean

32.6 

33.8 

27.7

69.6

26.8 

26.1 

28.8 

89.0 

233 

254 

96.6 

46.8 

39.4

78. 0

Sept.

37 

37 

36 

36 

34

34 

34 

39 

55 

51

45 

43

41 

40 

39

4O 

39 

40 

40 

40

38 

38 

39 

38 

38

37 

38 

38 

38 

39

Runoff In 

acre-feet

2,010 

2,010 

1,700

50,430

1,650 

1,45O 

1,770 

5,290 

14,310 

15,100 

5,940 

2,880 

2,340

56, 450

Peak discharge (base, 300 see.-ft.).--May 17 (11:30 p.m.) 376 sec.-ft.; May 22 (11:30 p.m.) 415

1C.-ft.

a No gage-height record; discharge computed on basis of weather records and records for Big Wood

ver near Ketchum.

f Computed from partly estimated gage-height record.
BIG WOOD RIVER BASIN 117 

Big Wood Slough at Hailey, Idaho

Location. Water-stage recorder, lat. 43°31 I 00", long. 114°19 I 30", in sec. 9, T. 2 N., R. 

18 E., 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 1950. 

Average discharge. 35 years, 109 second-feet.

Extremes. Maximum discharge during year, 106 second-feet Apr. 16; maximum gage height, 

a.04 feet Sept. 18, backwater from temporary dam; minimum discharge recorded, 1.5 

second-feet Jan. 5 (gage height, 1.20 feet).

1915-50: 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, Nov. 22. 1948, 

to Mar. 23, 1949.

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 upstream to 

meet the requirements of Irrigation diversion from slough and sewage dilution. Big 

Wood Slough is a natural channel of Big Wood River and its discharge plus the discharge 

of Big Wood River at Hailey (see p. 110 ) is total discharge of river at this point.

Cooperation.--Water-stage recorder inspected and two discharge measurements furnished by 

Water District No. 7 AB.

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

Day

1 

2

3

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

36 

35

41 

43 

44

48 

48 

53 

55 

56

55 

56 

58 

58 

55

55 

56 

58 

56 

55

52 

50 

51 

51 

42

41 

51 

53 

54 

51 

50

Nov.

53 

54 

56 

56 

54

54 

56 

62 

72

66

55 

 56 

52 

52 

53

53 

53 

53 

52 

52

52 

50 

56 

60 

60

56 

59 

73 

65

64

Dec.

59 

60 

54 

46 

54

52 

49

52 

50

46

37 

30 

37 

39 

39

43 

45 

46 

47 

38

26 

, 6.0

Jan.

6.0

Feb.

7.0

Month

Octo 

"ove 

Dece

Ca

~^nu 

"ebr 

'<*re 

Vpri

"tine 

-rily 

<Vugu 

''rapt

Wa

lendar year 194 ).......................

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

Mar.

7.5

7.6 

7.6 

7.2 

6.8

6.8 

6.8 

7.2 

7.2 

7.2

6.8 

6.8 

6.8 

6.8 

6.8

6.8 

6.8 

6.8 

7.2 

7.6

7.2 

7.6 

7.6 

7.2 

7.6 

8.1

Apr.

8.6 

9.0 

9.0 

32 

52

54 

58 

63 

64 

65

68 

73 

85 

95 

101

81 

55 

49 

46 

33

49 

51 

47 

43 

40

40

41 

41 

39 

37

Secondfoot-days

1,567 

1,709 

1,009

14,937

186.0 

196.0 

223.9 

1,528.6 

1,355 

1,297 

1,131.9 

250.0 

335.9

10,789.3

May

38 

37 

35 

34 

34

33 

32 

32 

34 

49

56 

64 

53 

62 

70

64 

53 

50 

43 

39

41 

45 

49 

45 

39

37 

37 

39 

38 

38 

35

Maximum

58 

73 

60

206

101 

70 

81 

85 

17 

33

101

June

34 

34 

30 

28 

31

35 

37 

37 

30 

28

30 

32 

31 

29 

47

81 

49 

49 

50 

50

50 

53 

51 

48 

43

39 

38 

52 

70 

81

July

85 

83 

68 

68 

65

63 

63 

68 

60 

55

54 

49 

38 

32 

29

26 

26 

24 

21 

19

17 

16 

16 

14 

14

13 

9.6 

9.0 

9.6 

9.6 

8.1

Minimum

35 

50

0

8.6 

32 

28 

8.1 

3.6 

3.3

Aug.

7.2 

11 

13 

13 

16

17 

14 

11 

9.0 

9.0

9.6 

13 

13 

10 

7.6

7.6 

6.3 

6.8 

6.8 

5.0

4.5 

4.5 

4.5 

4.5 

4.2

3.9 

3.6 

3.6 

3.6 

3.6 

3.6

Mean

50.5 

57.0 

32.5

40.9

6.00 

7.00 

7.22 

51.0 

43.7 

43.2 

36.5 

8.06 

11.2

29.6

Sept.

3.3 

3.3 

3.3 

3.3 

3.3

5.4 

13 

13 

16 

26

28 

27 

29 

33 

19

19

19 

e!3 

h7.2 

h7.2

h4.5

h5.4 

h5.4 

4.6 

h3.9

h4.2 

h4.5 

h4.2 

4.0 

h3.9

Runoff in 

acre-feet

3,110 

3,390 

2,000

29,640

369 

389 

444 

3,030 

2,690 

2,570 

2,250 

496 

666

21,400

e Stage-discharge relation indefinite; discharge computed as for no gage-height record.

h Computed from staff-gage reading.

Note.--Stage-discharge relation affected by ice Dec. 20 to Mar. 6, Mar. 12-14, 23, 29. Ho gageheight record Feb. 2-28, Sept. 24, 29; discharge computed on basis of weather records and records 

for Big Wood River at Hailey and nearby streams.
118 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 1950 (no winter records prior to 1945). Discharge measurements only for 1922.

Extremes.--Maximum discharge during year, 6,750 second-feet Apr. 17 (gage height, 12.75 

feet); minimum, 3.5 second-feet Sept. 5; minimum gage height, 0.98 foot Oct. 16.

1912-50: Maximum discharge recorded, 9,780 second-feet Apr. 8, 1943; maximum gage 

height, 15.48 feet about Apr. 18, 1938, from floowmark; 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. Five discharge measurements and occasional inspections of recorder furnished 

by Water District No. 7 AB.

Discharge, In second-feet, water year October 1949 to September 195Q

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.0 

4.0 

4.0 

4.0 

4.2

4.4 

4.4 

5.6 

5.6 

5.4

5.0 

4.8 

4.6 

4.0 

3.8

3.8 

3.8 

3.8 

4.0 

4.8

5.2 

5.2 

5.2 

5.4 

5.4

5.6 

5.8 

5.8 

5.8 

5.8 

6.0

Nov.

6.3 

6.3 

6.3 

6.6 

6.6

6.3 

6.6 

7.2 

11 

15

12 

9.4 

8.4 

8.4 

8.4

8.7 

8.7 

9.4 

8.4 

8.4

8.4 

8.1 

8.7 

12 

12

10 

10 

14 

13 

11

Dec.

10 

9.4 

9.0 

7.S 

8.7

8.4 

8.4 

8.7 

8.7 

7.5

> 8.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MAv

June 

July 

Augu 

Sept

Ha

Jan.

' 8.0

11 

19 

31 

28 

25

}"

Feb.

1"

14

15 

17 

20

22 

22 

22

lendar year 1949

Mar.

23 

23 

24 

27 

44

48 

51 

56 

59 

60

61 

60 

61 

62 

65

70 

86 

97 

104 

104

120 

123 

103 

106 

104

87 

87 

76 

75 

81 

89

Apr.

108 

197 

230 

266 

255

298 

381 

596 

1,030 

1,220

1,490 

2,100 

3,220 

3,820 

3,340

3,960 

5,230 

4,920 

3,290 

2,560

2,180 

1,930 

1,700 

1,580 

1,340

1,090 

978 

873 

918 

932

Secondfoot-days

149.2 

275.6 

254.3

51,422.4

364.0 

406.0 

2,236 

52,032 

19,078 

6,318 

1,214.8 

299.7 

253.7

82,881.3

May

962 

998 

1,100 

898 

758

651 

587 

514 

473 

465

468 

485 

526 

596 

660

698 

705 

688 

644 

603

556 

544 

559 

568 

553

526 

497 

473 

450 

439 

434

Maximum

6.0 

15 

10

3,250

31 

22 

123 

5,230 

1,100 

422 

87 

32 

20

5,230

June

422 

406 

378 

351 

328

318 

302 

276 

264 

241

209 

195 

185 

176 

164

157 

153 

152 

152 

146

146 

148 

152 

155 

153

145 

133 

114 

103 

94

July

87 

86 

84 

80 

79

76 

67 

65 

61 

58

55 

48 

46 

41 

42

36 

29 

26 

22 

19

17 

15 

14 

11 

8.7

7 2 

8 7 

6 3 

5 8 

6 6 

7 5

Minimum

3.8 

6.3

2.6

23 

108 

434 

94 

5.8 

4.0 

3.7

3.7

Aug.

11 

9.8 

8.7 

9.0 

19

31 

32 

25 

18 

14

12 

10 

9.4 

8.7 

7.8

6.9 

6.0 

5.4 

5.0 

4.8

.8 

.6 

.2 

.0 

.0

.4 

.2 

.0 

4.0 

4.0 

4.0

Mean

4.81 

9.19 

8.20

141

11.7 

14.5 

72.1 

1,734 

615 

211 

39.2 

9.67 

8.46

227

Sept.

3.8 

3.8 

3.8 

3.8 

3.7

3.7 

3.7 

4.0 

20 

17

14 

12 

10 

8.7 

8.7

8.7 

8.7 

8.7 

9.0 

9.0

8.7 

8.4 

9.4 

9.4 

8.7

8.4 

8.4 

8.7 

9.0 

9.8

Runoff In 

acre -feet

296 

547 

504

102,000

722 

805 

4,440 

103,200 

37,840 

12,530 

2,410 

594 

503

164,400

Peak discharge (base. 500 sec.-ft.). Apr. 17 (6 p.m.) 6,750 sec.-ft.; May 3 (9 a.m.) 1,130 see.- 

ft.; May 17 (6 a.m.) 716 sec.-ft.

Note. No gage-height record Dec. 11 to Jan. 20, Jan. 26 to Feb. 22; discharge computed on basis 

of inflow-outflov studies for Magic Reservoir, weather records and records for nearby streams.
BIG WOOD RIVER BASIN 119 

Little 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., 

IT! 2TT E. , at Campbell Ranch, above flow line of Little Wood Reservoir, ij miles downstream from High Five Creek, 2-| miles downstream from Muldoon Creek, 11 miles east of 

Bellevue, and 12 miles northwest of Carey.

Drainage area.--267 square miles.

Records available. February 1920 to September 1926 (published as Little Wood River near 

(Jarey); March 1941 to December 1942, April 1944 to September 1950 (no winter records 

except 1921-24, 1926).

Extremes.--Maximum discharge during year, 1,570 second-feet Apr. 21 (gage height, 4.37 

reet ); minimum recorded, 27 second-feet Oct. 4; minimum gage height recorded, 0.88 

foot Sept. 4.

1920-26, 1941-42, 1944-50: Maximum discharge recorded, that of Apr. 21, 1950; minimum, 14 second-feet Aug. 29, 30, 1926.

Remarks.--Records good except those for Mar. 1-31, which are fair. Flotj may be slightly 

regulated by Campbell Reservoir (capacity, 2,700 acre-feet) on unnamed tributary. Diversions for irrigation from Muldoon Creek.

Cooperation.--Water-stage recorder inspected by Little Wood Reservoir Co. and Water Distrlct Wo. 11C .

Revisions.--W 633: Drainage area.

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

Day

1 

2 

3 

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

32 

30 

29 

28 

32

36 

39 

48 

47 

50

48 

52 

50 

46 

44

44 

43 

44 

43 

44

46 

47 

47 

46 

46

44 

44 

44 

44 

44 

43

Nov.

44 

44 

44 

44 

44

44

44 

48 

58 

60

51 

54 

47 

47 

50

50 

51 

51 

50 

50

50 

47 

52 

56 

54

52 

57 

75 

63 

62

Dec.

56 

54

Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year

ter year .......................

Mar.

> 80 

72

} "

> 80

Apr.

141 

148 

138 

131 

129

141 

170 

220 

223 

231

252 

316 

388 

447 

485

619 

866 

852 

744

831

1,120 

1,190 

817 

570 

530

490 

475 

424 

388 

343

Secondfoot-days

1,324 

1,543

-

2,442 

13,819 

13,598 

9,719 

4,297 

1,759 

1,300

-

May

376 

368 

305 

285 

268

256 

246 

246 

246 

256

285 

343 

428 

530 

619

636 

636 

619 

525 

470

461 

515 

592 

602 

515

480 

480 

515 

500 

500 

495

Maximum

52 

75

-

1,190 

636 

500 

259 

88 

55

-

June

495 

490 

424 

402 

428

475 

500 

428 

347 

302

298 

305 

285 

271 

265

281 

309 

288 

278 

281

309

328 

305 

262 

226

200 

203 

223 

249 

262

July

259 

249 

228 

223 

214

208 

203 

249 

200 

194

172 

146 

134 

124

116

113 

107 

103 

101 

98

88 

87 

85 

82 

80

75 

72 

72 

70 

73 

72

Minimum

28 

44

-

129 

246 

200 

70 

34 

31

-

Aug.

70 

70 

72 

76

85

88 

78 

72 

67 

63

59 

70 

67 

63 

59

55 

54 

51 

48 

46

47 

45 

44 

44 

43

41 

39 

38 

36 

35 

34

Mean

42.7 

51.4

-

78.8 

461 

439 

324 

139 

56.7 

43.3

-

Sept.

33 

31 

31 

31 

31

31 

33 

39 

49 

55

53 

51 

48 

46 

47

51 

48 

48 

47 

46

44 

46 

46 

46 

45

44 

43 

44 

45 

48

Runoff In 

acre-feet

2,630 

3,060

-

4,840 

27,410 

26,970 

19,280 

8,520 

3,490 

2,580

-

Note. No gage-height record Mar. 1-12, 14-31; discharge computed on basis of weather records and 

records for Little Wood River near Carey, Little Wood Reservoir (as reported by Little Wood Reservoir Co.), and records for other nearby streams.
120 BIG WOOD RIVER BASIN

Little Wood River near CareJ, Idaho

Location.--Water-stage recorder, lat. 43°23', long. 114°00', in Ei sec. 30, T. IN., R.

 ZT~ET, 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 downstream 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 1950.

Average discharge.--21 years (1926-27, 1929-42, 1943-50), 128 second-feet.

Extremes. Maximum discharge during year, 1,720 second-feet Apr. 22 (gage height, 7.20 

reetj; minimum, probably less than 2 second-feet at times when gates were closed during 

period of ice effect; minimum gage height, 1.84 feet Dec. 21-23.

1904-5, 1926-50: Maximum discharge, 6,000 second-feet (due to failure 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 secondfoot Jan. 26, 1945, Jan. 20, 1948.

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

wnicn are fair, and those below 10 second-feet, which are poor. Regulation and diversions above station for irrigation. Storage in Little Wood Reservoir (capacity, 10,000 

acre-feet), 3 miles above station, began Feb. 12, 1941. Flow 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 Distrier NO. 11C.

Discharge, In second-feat, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

Zl 

Z2 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

33 

33

32 

31

32

34 

38 

42 

44 

47

48 

49

61 

66 

54

49 

47 

47

46 

46

47

48 

48 

48 

48

47 

47 

47 

47 

47 

47

Nov.

47 

47 

48 

48

48

48 

48 

50 

56

64

P2 

57 

57

*56 

56

59 

57 

57 

57

56

55 

54 

55 

57 

43

26 

27 

26 

LO 

20

Dec.

20

21 

21 

16 

IE

30 

30

23 

15 

14

14 

14 

10

Jan.

2

*2 

2

3 

3

3

4 

5 

4

4

3 

3

10 

40

55 

55

Feb.

55 

55 

55 

55 

55

55 

55 

55 

55 

55

55 

55 

55 

55 

55

55

55 

55 

55 

55

55 

55 

54 

55 

55

57 

76 

114

Month

Goto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

St............ ..........................

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

Mar.

112 

112 

112 

80 

47

47 

47 

47 

47 

47

47 

47 

47 

*48 

48

48 

57 

56 

54 

52

52 

41 

31 

31 

32

30 

30 

30

36 

44 

49

Apr.

77 

101 

94 

92 

92

98 

110

135

122 

118

126 

139 

141 

139 

264

774 

1,040 

1,140 

917 

965

1,244 

1,400 

1,010

684 

616

584 

534 

500 

471 

419

Secondfoot -days

1,400

1,461 

276

40,034

228 

1,621 

1,608 

14,146 

14,656 

10,220 

6,298 

4,274 

2,403

58,591

May

432 

453 

379 

347 

323

308 

291 

291 

291 

294

317 

369 

450 

538

616

656 

656 

644 

573 

515

497 

f530 

596 

628 

569

512 

504 

523 

527

515 

512

Maximum

66 

64 

30

596

55 

114 

112 

1,400 

656 

508 

261 

228 

120

1,400

June

508 

508 

464 

426 

432

471 

500 

468 

392 

338

320 

320

311 

294 

291

291 

314 

305 

294 

294

314 

335 

320

285 

253

220

218 

225 

243

266

Minimum

July

261 

258 

238 

228 

218

215 

200 

240

212 

196

186 

163 

148 

133 

133

135 

161 

163 

170 

184

188 

203 

212 

218 

235

238 

240 

238 

238 

228 

218

31 

20

-

54 

30 

77 

291 

218 

133 

70 

48

-

Aug.

208 

203 

228 

225 

191

163 

156 

152 

148

168

f!68 

f!54 

f!35 

103 

91

101 

98 

114 

120

122

122 

137 

150 

150 

137

122 

96 

70 

76 

84 

82

Mean

45.2 

48.7 

8.9

110

7.4 

57.9 

51.9 

472 

473 

341 

203 

138 

80.1

161

Sept.

81 

82 

82 

94 

84

74 

69 

65 

62 

53

52 

52 

49 

49 

f48

f48 

48 

48 

48 

73

105 

110 

110 

109

116

120

118 

118 

118 

118

Runoff In 

acre-feet

2,780 

2,900 

547

79,400

452 

3,220 

3,190 

28,060 

29,070 

20,270 

12,490 

8,480 

4,770

116,200

* Winter discharge measurement made on this day.

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

Note. Stage-discharge relation affected by Ice Dec. 3, 4, 6, Dec. 10 to Feb. 15, Feb. 17-19, 21, 

22, Mar. 28, 29. No gage-height record Jan. 4-15, Feb. 28 to Mar. 12, Sept. 28-30; discharge computed on basis of gate changes for Little Wood Reservoir.
BIG WOOD RIVER BASIN 

Little Wood River neap Richfield, Idaho

121

Location. Water-stage recorder, lat. 43°03', long. 114°08', in sec. 30, T. 4 S., R. 20 

E., half a mile upstream from Byrns Slough and heading of Dietrich Canal, 1 mile east 

of railroad station at Richfield, and 14 miles downstream from Silver Creek.

Records available.--January 1911 to September 1950 (irrigation seasons only).

Extremes.--Maximum discharge during year, 359 second-feet Apr. 23 (gage height, 2.44 

feet); minimum recorded, 65 second-feet June 17 (gage height, 1.35 feet).

1911-50: 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. Diversions above station for irrigation. Plow partly regulated 

by Little Wood Reservoir and four small reservoirs on tributaries. River above Silver 

Creek is dry, except during freshet seasons, because of channel losses and irrigation 

diversions above Carey.

Cooperation.--Water-stage recorder graph and seven discharge measurements furnished by 

Water District No. 11 AB.

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

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

124 

127 

129 

131 

129

125 

129 

133 

136 

136

136 

134 

133 

131 

133

133 

133

131 

131 

133

134 

134 

134 

134 

134

134 

133 

133 

133 

133 

134

Nov.

136 

136 

133 

133 

133

133 

134 

134 

138 

144

146 

150 

146 

142 

140

140 

138 

138 

138 

136

136 

136 

134 

136 

140

140 

138 

138 

136 

134

Dec.

134 

136 

134 

133

Jan. Feb.

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber.....................................

lendar year

h 20-31 

1

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

Mar.

185

178 

173

171 

171

171

173 

169 

167 

160 

160 

165

Apr.

171 

198 

218 

227 

224

216 

210 

205 

210 

216

213 

200 

190 

188 

188

185 

210 

249 

291 

282

276 

300 

347 

337 

285

267 

255 

249 

244 

244

Secondfoot-days

4,097 

4,136

-

2,043 

7,095 

4,756 

2,812 

3,999 

3,931 

4,458

-

Bay

232 

229 

241 

224 

210

202 

200 

192 

185 

182

158 

156 

158 

152 

160

165 

165 

162 

156 

142

122 

113 

112 

108 

106

100 

86 

80 

81 

80 

97

Maximum

136 

150

-

185 

347 

241 

131 

156 

144 

160

-

June

101 

100 

108 

125

131

105 

92 

105 

101 

84

80 

78 

75 

78 

75

75 

69 

75 

75 

76

80 

81 

89 

92 

100

115 

115 

112 

108 

112

Minimum

July

113 

122 

127 

129 

136

134 

140 

144 

152 

156

152 

144 

138 

142 

134

134 

140 

133 

125 

124

122 

112 

113 

115 

118

117 

115 

115 

113 

118 

122

124 

133

-

160 

171 

80 

69

112 

110 

127

-

Aug.

118 

112

110 

113 

113

115 

120 

125 

131 

133

133 

134 

140 

142 

144

144 

140 

134 

133 

133

138 

138 

127

124 

117

113 

117 

118 

120 

125 

127

Mean

132 

138

-

170 

236 

153 

93.7 

129 

127 

149

-

Sept.

127 

129 

134 

140 

136

138 

140 

142 

142 

142

142 

148 

150 

152 

156

160 

160 

160 

156 

154

154 

154 

156 

150 

152

154 

156 

156 

158 

160

Runoff In 

acre-feet

8,130 

8,200

-

4,050 

14,070 

9,430 

5,580 

7,930 

7,800 

8,840

-

253646 O - 53 - 9
122 BIG WOOD RIVER BASIN

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 400 feet upstream from highway bridge in Shoshone.

Records available. April 1922 to September 1950 (irrigation seasons only).

Extremes. Maximum discharge during year, 560 second-feet Apr. 28 (gage height, 3.61 feet); 

minimum recorded, 37 second-feet Oct. 3, 4 (gage height, 0.64 foot).

1922-50: 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. Many diversions above and below station for irrigation. Plow 

arrected 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 Byrns Slough for Dietrich Canal via 

Little Wood River at Richfield.

Cooperation. Water-stage recorder graph and six discharge measurements furnished by Water 

District No. 11 AB.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

122 

103 

78 

39 

44

44 

44 

46

50 

54

56 

58 

54 

54 

52

54 

54 

56 

56 

58

60 

64 

64 

62 

62

62 

62 

54 

50 

48 

48

Nov.

48 

50 

50 

48 

48

46 

46 

48 

52

58

56

58 

60 

58 

54

50 

52 

54 

54 

52

52 

69 

95 

98 

64

56 

54 

54 

69 

100

Dec.

loo 

loo

98

Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

lendar year 

ary

ter year .......................

Mar.

140 

131

117 

108 

103 

98 

95

95 

95 

88 

193 

223

173 

147 

125 

122 

125

125 

134 

120 

108 

103 

98

Apr.

1OO 

114 

140 

153 

159

169 

162 

159 

162 

169

173 

162 

150 

144 

147

147 

147 

159 

176 

231

239 

260 

353

391 

372

383 

465 

537 

544 

524

Secondfoot-days

1,812 

1,753

-

2,866 

7,191 

14,830 

15,155 

15,303 

14,506 

12,410

-

«ay

519 

507 

490 

473 

473

482 

475 

509 

509 

484

469 

452 

461 

462 

461

458 

458 

453 

452 

469

464 

458 

477 

499

505

506

497 

480 

475 

474 

479

Maximum

122 

100

-

223 

544 

519 

552 

523 

500 

468

-

June

483 

485 

482- 

481 

489

480 

469 

481 

497 

491

484 

497 

509 

513 

511

513 

504 

496 

507 

508

505 

509 

514 

527 

538

547 

552 

544 

522

517

July

521 

511 

511 

508 

509

521 

520 

520 

514 

523

520 

518 

513 

505 

487

488 

485 

484 

479 

477

485 

486 

478 

477 

474

472 

470 

463 

456 

462 

466

Minimum

39

46

-

88 

100 

452 

469 

456 

433 

327

-

Aug.

470 

468 

464 

465 

472

480 

488 

499 

494 

485

487 

498 

494 

500 

488

475 

473 

471 

469 

471

459 

459 

451 

433 

434

434 

442 

450 

450 

446 

437

Mean

58.5 

58.4

-

125 

240 

478 

505 

494 

468 

414

-

Sept.

426 

423 

421 

425 

426

426 

428 

433 

442 

444

439 

461 

468 

450 

440

431

437 

446 

456 

427

395 

388 

391 

370 

351

349 

349 

362 

379 

327

Runoff In 

acre-feet

3,590

3,480

-

5,680 

14,260 

29,410 

3O.06O 

30,350 

28,770 

24,610

-
BIG WOOD RIVER BASIN 123

Silver Creek near Picabo, Idaho

Location. Water-stage recorder, lat. 43°17', long. 114°01', In sec. 1, T. 2 S., R. 20 E., 

15 miles downstream from drain ditch of Blalne County Drainage District No. 1 and 

3 miles southeast of Picabo.

Records available. May 1920 to September 1950 (1922-35, irrigation seasons only). 

Average discharge. 17 years (1920-22, 1935-50), 149 second-fee-t.

Extremes. Maximum discharge during year, 266 second-feet Apr. 2; maximum gage height, 

i.bY feet Jan. 22 (ice Jam); minimum discharge, 38 second-feet Jan. 24 (gage height, 

0.55 foot).

1920-50: Maximum discharge, 312 second-feet Apr. 3, 1923; maximum gage height, that 

of Jan. 22, 1950 (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 or no gage-height record, 

wrucn 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 by Water District 

wo.11 AB.

Discharge, In second-feet, water year October 1949 to September 195O

Day

I 

2

3

4 

5

6 

7

e

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

162 

162 

163 

162 

158

162 

167 

175 

179 

179

177 

172 

170 

167 

167

167 

165 

164 

165 

167

167 

167 

167 

167 

166

164 

161 

161 

162 

163 

166

Nov.

166 

164 

164 

163 

162

161 

160 

165 

175 

195

198 

188 

177 

172 

169

168 

167 

167 

167 

162

164 

166 

162 

163 

172

170 

170 

170 

168 

*163

Dec.

161 

158 

155 

152 

151

149 

149 

147 

147

> 150 

152

Jan.

151 

150 

130

 140

*150 

160

165 

175 

177 

134

> 140

Feb.

140

147 

145 

145 

145 

145

145 

144 

143 

143 

144

139 

142 

142 

145 

150

151 

154 

150

Month

Goto 

Hove 

Dece

Ca

Janu 

Pfebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949 

ary

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

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

Mar.

150 

150 

149 

153 

162

186 

179 

175 

172 

169

160 

159 

153 

152 

150

150 

167 

*200 

203 

190

185 

184 

180 

184 

189

184 

182 

169 

169 

173 

177

Apr.

208 

251 

258 

247

237

232 

237 

247 

256 

253

238 

226 

219 

213 

206

196 

190 

179 

173 

167

164 

164 

161 

157 

159

154 

156 

155 

159 

157

Secondfoot-days

5,161 

5,078 

4,671

56,098

4,472 

4,019 

5,305 

6,019 

3,559 

3,683 

5,711 

5,352 

5,605

58,635

May

157 

167 

162 

157 

152

147 

147 

145 

145 

126

112 

111 

106 

106 

106

105 

103 

101 

94 

94

100 

103 

98 

97 

92

91 

88 

86 

86 

87 

88

Maximum

179 

198

236

177

203 

258 

167 

173 

219 

205 

199

258

June

89 

93 

101 

106 

105

10O 

101 

106 

103 

106

111 

113 

119 

116 

117

117 

127 

116 

121 

1ZG

126 

126 

129 

133 

149

158 

163 

166 

167 

173

July

181 

193 

197 

204

207

209 

209 

207 

217 

219

210 

194 

191 

191 

186

185 

179 

167 

171 

174

162 

160 

161 

162 

163

165 

171 

169 

171 

170 

166

Minimum

158

160

90

149 

154 

86 

89 

160 

145 

159

86

Aug.

161 

157 

160 

162 

168

175 

187 

191 

187 

187

187 

197 

203 

205 

201

195 

187 

181 

179 

189

187 

160 

151 

145 

145

148 

150 

152 

154 

149 

152

Mean

166 

169

151

154

144 

144 

171 

201 

115 

123 

184 

173 

187

161

Sept.

159 

170 

181 

182 

181

181 

180 

178 

178 

180

186 

192 

197 

199 

197

198 

197 

194 

192 

192

192 

190 

181 

181 

185

188 

189 

190 

197 

198

Runoff In 

acre-feet

10,240 

10,070 

9,260

111,300

8,870 

7,970 

10,520 

11,940 

7,060 

7,310 

11,330 

10,620 

11,120

116,300

* Winter discharge measurement made on this day.

Note., Flow In bypass channel, which carries water around gage, measured as 0.1 sec.-ft. (estimated) 

Oct. 9; O.33 sec.-ft. (estimated) Nov. 3O; l.O sec.-ft. (estimated) Jan. 19; 16.5 sec.-ft. Mar. 18j 

11.6 sec.-ft. Apr. 25; 2.99 sec.-ft. June 1; 6.37 sec.-ft. July 12} 2.60 sec.-ft. Aug. 21; 8.98 sec.- 

ft. Sept. 27. Stage-discharge relation affected by Ice Dec. 22-30, Jan. 4-22, Jan. 25 to Feb. 10 

(no gage-height record Nov. 18-29, Dec. 10-21; discharge computed on basis of weather records and 

records for nearby streams).
BIG WOOD RIVER BASIN 

King Hill Canal near Eager-man, Idaho

Location.--Staff gage In concrete stilling well connected to stilling pool above entrance 

to inverted siphon crossing Snake River, lat. 42°52', long. 114°55', In SW£ sec. 27, T, 

6 S., R. 13 E., half a mile west of highway bridge over Big Wood River and 3j miles 

north of Hagerman. Auxiliary staff gage 500 feet below lower end o± siphon used during 

water year 1950.

Records available.--March'1930 to September 1950 (irrigation seasons only except 1939, 

1947-50).

Extremes.--Maximum discharge observed during year, 338 second-feet June 25; maximum gage 

height observed, 8.70 feet June 21, 22 (auxiliary gage); no flow for long periods when 

gates were closed.

1930-50; Maximum discharge observed, 343 second-feet May 27, 1947; maximum gage 

height observed, 3.80 feet July 19-22, 26, 27, 1944 (site and datum then in use); no 

flow or small flow from leakage at head gate during nonlrrlgatlon seasons and other 

periods when gates were closed.

Remarks.--Records fair. Gage read once dally. 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 Wood River (Malad Springs water).

Cooperation.--Gage readings furnished by King Hill Irrigation District, 

measurements furnished by Idaho Power Co.

Eleven discharge

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

256 

259 

262 

266 

266

261 

262 

243 

243 

81

0 

0 

O 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

o

Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar. Apr.

0 

0 

0

0 

0

0 

82 

109 

119 

119

129 

129 

129 

139 

160

160 

189 

195 

216 

233

276

270 

324 

335 

320

325 

318 

307 

306 

306

Secondfoot-days

2,399 

O

O

52,230

O 

0 

0 

5,195 

9,359 

8,201 

9,338 

8,671 

8,055

51,218

May

304 

304 

303 

303 

302

297 

296 

306 

306 

296

307 

296 

296 

307 

310

310 

310 

309 

307 

310

309 

304 

303 

302 

295

296 

296 

292 

293 

295 

295

Maximum

266 

0 

0

335

O 

0 

0 

335 

310 

338 

328 

331 

310

338

June

296 

296 

289 

286 

286

296 

290 

303 

269 

277

276 

283 

299 

285 

290

293 

310 

269 

310 

313

324 

81 

0 

189 

338

324 

296 

269 

282 

282

July

282 

279 

310 

304 

293

293 

295 

303 

309 

303

314 

321 

328 

313 

3O4

311 

296 

300 

304 

296

296 

299 

293 

302 

302

302 

296 

296 

299 

300 

295

Minimum

0 

0

o

0

0

o 

o 

o

292 

0 

279 

0 

250

0

Aug.

286 

286 

283 

289 

303

300 

233 

283 

276 

297

132 

295 

309 

314 

303

145 

O 

173 

293

310

316 

296 

3E1 

327 

324

331 

328 

325 

331 

309 

303

Mean

77.4 

0 

O

143

0 

0 

0 

173 

302 

273 

301 

280 

268

140

Sept.

232 

282 

282 

288 

288

296 

302 

310 

276 

283

286 

278 

278 

262 

265

250 

255 

250 

262

252

257 

250 

255 

257 

252

250 

250 

252 

255 

250

Runoff In 

acre-feet

4,760 

0 

0

103,600

0 

0 

O 

1O.30O 

18,560 

16,270 

18,520 

17,200 

15,980

101,600

Note. Discharge computed on basis of gage-height record at auxiliary gage 50O feet below inverted 

siphon for entire period of flow.
CANYON CREEK BASIN ly5 

Mountain Home feeder canal near Mountain Home, Idaho

Location.--Water-stage recorder and concrete control, lat. 43°13', long. 115°42', in sec. 

36, T. 2 S., R. 6 E., 40 feet downstream from point of diversion from Canyon Creek and 

5 miles north of Mountain Home.

Records available.--April 1924 to September 1929, April 1931 to September 1950.

Extremes.--Maximum discharge during year, 101 second-feet Mar. 19; maximum gage height, 

Ol feet sometime during period Feb. 1-5 (ice jam); no flow for several days during 

November.

1924-29, 1931-50: Maximum discharge, 226 second-feet Feb. 21, 1927 (gage height, 

2.18 feet, datum then in use), from rating curve extended above 120 second-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; two small diversions between station and head gates of 

Mountain Home cooperative canal. Flow regulated by head gates in Canyon Creek and by 

Long Tom and Little Camas Reservoirs.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.0 

3.0 

3.0 

3.0 

3.0

3.3

3.6 

3.6 

3.3 

3.6

4.0 

3.6 

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 

3.0

Nov.

2.7 

2.7 

2.7 

2.7 

2.4

1.8 

1.6 

1.8 

2.7 

2.4

2.1 

1.8 

1.2 

0 

0

0 

0 

O 

0

0

0

o

0 

0 

0

1.2 

2.4 

2.4 

2.2 

2.2

Dec.

*2.2 

1.9 

1.9 

1.7

1.7

1.7 

bl.6 

1.4 

bl.7 

bl.4

bl.2 

bl.2 

bl.2 

1.2 

1.2

1.4 

1.4 

1.4 

bl.2 

bl.O

bl.6 

1.9 

1.9

bl.7 

bl.5

bl.7 

1.9 

1.7 

1.9 

bl.8 

bl.7

Jan.

bl.6 

bl.6 

bl.6 

bl.7 

b2.o

3.1 

2.8 

2.4 

2.2 

2.2

2.2 

1.7 

1.9 

2.2 

b2.4

*b2.6 

2.7 

2.7 

5.0 

20

b40 

b38 

b36 

34 

b32

b30

b28 

b26 

b24 

b21 

b!9

Feb.

15

13 

14 

17

25

30 

h30

29 

28 

27

26 

25 

25 

27 

28

30 

30 

30 

32

32

30 

30 

35 

40 

50

70 

65 

65

Month

Octo 

Move 

Decs

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

Lendar year 1949

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

ter year 1949-5O .......................

Mar.

60 

60 

6O 

65 

7O

75 

70 

60 

50 

45

42 

40 

40 

*40 

40

38 

67 

91 

78 

70

87 

86 

82 

76 

77

56 

38 

45 

53 

44 

31

Apr.

28 

29 

28 

28 

28

28 

28 

28 

28 

28

27 

26 

25 

33 

48

43 

41 

50 

80 

80

76 

74 

70 

70 

69

69 

67 

90 

95 

91

Secondfoot-days

102.4 

39.0 

48.9

13,756.6

392.6 

898 

1,836 

1,505 

2,140 

1,788 

2,178 

1,373 

1,185.7

13,486.6

May

92 

97

96 

89 

66

52 

48 

44 

44 

44

43 

42

51 

53

62

64 

62 

63 

63 

7O

73 

76 

82 

84 

84

84 

84 

83 

82 

82 

81

Maximum

4.0

2.7 

2.2

127

40 

70 

91 

95 

97 

82 

77 

64 

74

97

June

78 

79 

79 

78 

78

78 

82 

82 

72

52

49 

48 

44 

35 

47

50 

50 

50 

50 

50

50 

50 

50

51 

51

50 

59 

59

68 

69

July

69 

68 

68 

67 

75

77 

76 

76 

76 

77

77 

77 

77 

77 

75

74 

74 

73 

72 

71

71 

68 

68 

68 

70

68 

67 

66 

56 

53 

47

Minimum

3.0 

0 

1.0

0

1.6 

13 

31 

25 

42 

35 

47 

34 

4.9

0

Aug.

44 

44

44 

44 

36

34 

34 

34 

34 

46

49 

48 

42 

42 

41

42 

42 

41 

40 

41

40 

40 

41 

40 

50

52 

53 

53 

59 

59 

64

Mean

3.30 

1.30 

1.58

37.7

12.7 

32.1 

59.2 

5O.2 

69.0 

59.6 

70.3 

14.3 

39.5

36.9

Sept.

66 

70 

70 

74 

74

66 

63 

60 

69 

55

38 

33 

28 

28 

28

27 

27 

20 

25 

39

38 

36 

35 

34 

32

26 

8.5 

6.O 

5.3 

4.9

Runoff in 

acre-feet

203 

77 

97

27,280

779 

1,780 

3,640 

2,990 

4,240 

3,550 

4,320 

2,720 

2,350

26,750

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

h Computed from staff-gage reading.

Note.--No gage-height records Jan. 17-2O, Feb. 1-6, Feb. 

computed on basis of weather records, range in stage, and 

other nearby streams of similar runoff characteristics.

3 to Mar. 13, Sept. 12, 13; discharge 

;cords for Moore Creek near Arrowrock and
126 BRUNEAU RIVER BASIN

Bruneau River near Winter Camp Ranch, Idaho

Location. Water-stage recorder, lat. 42°38', long. 115°42', in sec. 13, T. 9 S., R. 6 E., 

at Koberson Trail crossing, 6 miles downstream from East Pork, 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 1950.

Extremes. Maximum discharge during year, 2,380 second-feet May 24; maximum gage height, 

4.49 feet Jan. 20, during period of ice effect; minimum daily, 25 second-feet Dec. 12, 

Jan. 4; minimum gage height, 0.68 foot Sept. 6-8.

1946-50: Maximum discharge, 3,290 second-feet May 17, 1949 (gage height, 5.23 feet); 

minimum daily, that of Dec. 12, 1949, Jan. 4, 1950; minimum gage height, 0.48 foot Sept.

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

small reservoirs and many small diversions for irrigation above station.

Discharge, In second-feet, Mater year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

53 

53 

54 

53 

53

54 

59 

67 

72 

76

82 

82 

89 

95 

87

84 

82 

80 

78 

80

80 

80 

82 

82 

82

84 

82 

80 

78 

76 

76

Nov.

76 

78 

78 

76 

76

76 

76 

76 

76 

84

87 

87 

91 

91 

91

91 

91 

91 

89 

87

85 

82 

85 

85 

87

89 

87 

87 

87 

87

Dec.

87 

85 

80 

72 

67

80 

71 

80 

78 

74

35 

25 

84 

*85 

85

85 

90 

95 

90

75

70 

90 

90 

93 

85

76 

78 

89 

84 

82 

78

Jan.

71 

58 

45 

25 

30

45 

70 

90 

100 

90

85 

80 

70 

75 

70

65 

70 

80 

100 

250

400 

485 

768 

529 

268

184 

186 

252 

199 

156 

*130

Feb.

1OO 

80 

65 

80 

180

230 

220 

200 

21O 

200

190 

ISO 

164 

148 

156

156 

199 

222 

212 

225

233

212 

205 

205 

208

240 

299 

368

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

342 

3 OS 

290 

294 

332

405 

410 

347 

342 

290

268 

218 

195 

202 

222

205 

205 

236 

368 

*394

468 

458 

447 

373 

405

442 

399 

342 

312 

281 

312

Apr.

474 

653 

824 

796 

666

620 

653 

747 

775 

747

705 

692 

740 

898 

950

950 

,060 

,160 

,180 

,190

,290 

,480 

,510 

1,340 

1,190

1,090 

1,060 

1,120 

1,100 

995

Secondfoot-days

2,315 

2,529 

2,438

149,930

5,126 

5,387 

10,112 

28,655 

44,143 

33,584 

10,076 

2,669 

1,751

148,785

May

912 

9O5 

898 

838 

775

761 

796 

803 

754 

719

733 

f824 

f965 

f 1,160 

1,360

1,530 

1,700 

,910 

,940 

,800

,790 

,930 

,080 

,270 

,230

,060 

,960 

,950 

1,920 

1,880 

1,990

Maximum

95 

91 

95

3,140

768 

368 

468 

1,510 

2,270 

1,980 

705 

124 

95

2,270

June

1,980 

1,880 

1,720 

1,500 

1,460

1,510 

1,560 

1,360 

1,210 

1,080

995 

988 

972 

965 

972

988 

1,000 

1,O2O 

995 

972

988 

1,030 

1,050 

988 

868

747 

698 

692 

698 

698

July

705 

a690 

3640 

a600 

a565

541 

496 

458 

431 

405

4O5 

373 

323 

299 

276

263 

248 

233 

218 

208

195 

186 

175 

167 

159

148 

141 

133 

133 

131 

131

Minimum

53 

76 

25

25

25 

65 

195 

474 

719 

692 

131 

56 

47

25

Aug.

124 

112 

108 

110 

112

112 

112 

101 

97 

97

95 

93 

95 

95 

93

89 

85 

82 

80 

78

a75 

71 

67 

66 

64

62 

62 

60 

59 

57 

56

Mean

74.7 

84.3 

78.6

411

165 

192 

326 

955 

1,424 

1,119 

325 

86.1 

58.4

408

Sept.

54 

54 

53 

50 

50

49 

47 

47 

a95 

a65

a65 

62 

60 

59 

57

56 

54 

57 

62 

64

64 

62 

62 

60 

59

59

57 

56 

56 

56

Runoff In 

acre-feet

4", 590 

5,020 

4,840

297,400

10,170 

10,680 

20,060 

56 , 840 

87,560 

66,610 

19,990 

5,290 

3,470

295,100

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for station near Hot Spring.

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

Note.--Stage-discharge relation affected by Ice Dec. 11-23, Jan. 2-21, Jan. 31 to Feb. 12.
BRUNEAU RIVER BASIN 127

Bruneau River near Hot Spring, Idaho

Location.--Water-stage recorder, lat. 42 0 46', long. 115°43'30", in SE-J- sec. 34, T. VS., 

R. 6 E., at Dunham Ranch, 1 mile downstream from Hot Creek, lj miles south of Hot 

Spring post office, 9 miles southeast of Bruneau, and about 16 miles downstream from 

East Fork. Datum of gage is 2,598.5 feet above mean sea level, datum of 1929 (from 

stadia level circuit by Topographic Branch in 1945).

Records available.--July 1909 to March 1915, October 1943 to September 1950. 

Average discharge.--12 years (1909-14, 1943-50), 428 second-feet.

Extremes. Maximum discharge during year, 2,310 second-feet May 24 (gage height, 7.98 

t'eet); minimum, 48 second-feet Dec. 12 (gage height, 3.80 feet).

1909-15, 1943-50: 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 second-feet Jan. 23, Nov. 29, 1911.

Remarks. Records excellent. Several small reservoirs and many small diversions from tribirEaries above station for irrigation.

Revisions (water years). W 1063: 1913.

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

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

1H 

13 

14 

15

16 

17 

18 

19 

20

21 

H2 

23 

H4 

25

26 

H7 

H8 

29 

30 

31

Oct.

9O 

92 

92 

92 

92

92 

96 

102 

112 

115

122 

125 

131 

139 

133

125 

12O 

12O 

118 

120

12O 

120 

120 

122 

122

125 

125 

125 

125 

122 

122

HOV:

122 

122 

125 

122 

122

122 

12O 

120 

120

125

133 

136 

133 

136 

133

136 

133 

136 

133 

131

128 

122 

128 

128 

128

128 

131 

131 

131 

128

Dec.

128 

128 

122 

115 

105

120 

110 

118 

12O 

108

74

58 

118 

12O 

120

118 

122 

128 

125 

1O5

1OO 

128 

128 

128

118

110 

1O8 

128 

128 

122 

120

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MHV

June 

July 

Augu 

Sept

Wa

Jan.

112 

108 

79 

58 

62

77 

102 

128 

139 

128

122 

118 

108 

110 

1O5

96 

1O5 

118 

133 

29O

445 

525 

806 

670 

385

246 

235 

306 

261 

184 

162

Feb.

147 

125 

1O2 

122 

217

273 

265 

246 

253 

246

235 

228 

194 

194 

204

197 

235 

273 

261 

273

281 

269 

257 

261 

261

285 

351 

415

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

lendar year 1949 

ary

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

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

Mar.

410 

375 

356 

351 

385

45O 

48O 

42O 

410 

366

337 

289 

265 

261 

297

277 

273 

289 

435 

46O

550 

550 

535 

46O 

48O

525 

49O 

435 

400 

366 

380

Apr.

535 

723 

87O 

858 

74O

696 

713 

8OO 

835 

8O6

772 

756 

8O6 

945 

l.OOO

997 

,100 

,19O 

,23O 

,240

,34O 

,520 

,550 

,4OO 

,240

,130 

,O80 

,140 

,140 

,040

Secondfoot -days

3,576 

3,843 

3,580

160,146

6,523 

6,670 

12,357 

30,192 

44,164 

34,165 

11,559 

3,738 

2,716

163,083

May

951 

933 

928 

875 

829

8O6 

835 

846 

789 

767

 772 

846 

957 

,150 

,430

,620 

,77O 

,950 

,92O 

,780

,760 

,86O 

,01O 

,19O 

,18O

,000 

,880 

,880 

,870 

,830 

,950

Maximum

139 

136 

128

2,950

806 

415 

550 

1,550 

2,190 

1,920 

750 

156 

139

2,190

June

,92O 

,83O 

,7OO 

,490 

,44O

,51O 

,56O 

,42O 

,270 

1,100

997 

986 

980 

968 

997

1,010 

1,040 

1,040 

997 

1,OOO

1,040 

1,080 

1,07O 

1,030 

916

80O 

740 

734 

750 

750

Minimum

July

75O 

734 

713 

659 

617

581 

545 

520 

490 

465

465 

445 

405 

366 

337

315 

297 

281 

261 

246

235 

224 

210 

200 

194

184 

175 

168 

159 

159 

159

90 

120 

58

58

58 

102 

261 

535 

767 

734 

159 

83 

79

58

Aug.

153 

147 

145 

147 

156

ISO 

150 

145 

136 

133

133

131 

136 

136 

133

128 

12O 

115 

HO 

108

105 

100 

98 

96 

94

96 

94 

90 

85 

85 

83

Mean

115

128 

115

439

210 

238 

399 

1,006 

1,425 

1,139 

373 

121 

90.5

447

Sept.

83 

83 

83 

81 

81

79 

81 

83 

139 

96

94 

92 

92 

90

85

85 

85 

92 

94 

94

94 

94 

92 

92 

94

94 

92 

90 

90 

92

Runoff in 

acre-feet

7,090 

7,620 

7,100

317,600

12,940 

13,230 

24,510 

59,880 

87,600 

67,770 

22,930 

7,410 

5,390

323,500
128 BRWEAU RIVER BASIN

East Fork Bruneau River near Hot Spring, Idaho

Location.--Water-stage recorder, lat. 42°34', long. 115°31', in SE^NE^ sec. 16, T. 10 S., 

R. 8 E., at Winter Camp Ranch, 7 miles upstream from mouth and 20 miles southeast of 

Hot Spring.

Records available.--August 1910 to April 1915, December 1948 to September 1950.

Extremes.--Maximum discharge during year, 228 second-feet May 20 (gage height, 5.89 feet); 

minimum, 0.5 second-foot Sept. 8, 9 (gage height, 1.70 feet).

1910-15, 1948-50: Maximum daily discharge, 450 second-feet Mar. 7, 8, 1911, during 

period of ice effect; maximum gage height observed, 10.65 feet Mar. 8, 1911, former 

site and datum; minimum observed, 0.4 second-foot Aug. 28, 29, Sept. 13, 1910.

Maximum stage known, 16.9 feet, from floodmark, former site and datum, during spring 

of 1910.

Remarks.--Records good except those for Oct. 1-20, which are fair, and those for periods 

of ice effect and those for Aug. 25 to Sept. 30, which are poor. Diversions for irrigation from main stem and tributaries above station. Water diverted from Deadwood 

Creek, tributary of East Fork, to Cedar Creek Reservoir in Salmon Falls Creek Basin for 

irrigation.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

10

11 

12 

12 

12

12

13 

15 

16 

18

19 

24 

22

21 

21

20

19 

18 

19 

20

22

20 

19

18 

18

16 

14 

14 

14

15 

16

Nov.

16 

17

17 

16 

16

16 

15 

16 

19 

18

17 

18 

18 

18 

17

16 

17 

16 

15 

15

14 

13 

13 

12 

12

12 

12 

12 

11 

12

Dec.

12 

12 

12

10

10

13 

11 

11 

12 

11

10 

9 

13 

*12 

13

13

13 

14 

13 

11

11 

1Z 

13 

13 

12

11 

11 

13 

13 

13 

13

Jan.

12 

11

10 

9

10

11 

13 

15

15 

14

14 

13 

12 

13 

11

10 

11 

12 

15 

30

40 

55 

50 

40 

30

20 

15 

17 

15 

14 

*11

Feb.

10 

9

8 

9 

11

15 

14 

13 

13 

13

12 

11

10 

10 

10

10 

12 

14 

14 

14

14 

13 

13 

13 

13

14

16 

18

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

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

Mar.

20 

19 

18

20 

21

20 

21 

21 

20 

21

20

19 

18 

13 

21

20 

21 

21 

23 

*22

23 

24 

24

22 

27

34 

34 

30 

28 

26 

26

Apr.

32 

34 

40 

50 

54

52

50 

48 

51 

57

64 

77

84 

86 

96

111 

141 

143 

137 

140

133 

128 

133 

144 

145

128 

109

103 

114 

116

Secondfoot -days

520 

456 

368

12,885.3

568 

346 

703 

2,800 

4,438 

2,402 

475.4 

315.6 

180.5

13,572.5

May

98

88 

92

88 

88

95 

1O4 

115 

112

108

104 

103 

103 

108 

119

148 

173 

200 

215 

226

206

185 

181 

187 

196

199 

183 

164 

153 

152 

145

Maximum

24 

19 

14

197

55 

18 

34 

145 

226 

146 

27 

16 

9.4

226

June

146 

143 

133 

127

116

107 

103

112 

126 

107

91

81 

78 

75 

73

77 

72 

67 

63 

57

52 

52 

53 

49 

48

49 

45 

39 

33 

28

Minimum

July

26 

25 

24 

22 

20

18 

19 

18 

18 

19

21 

27 

24 

20 

18

16 

15 

13 

13 

12

11 

10 

9.1 

8.5 

7.3

7.3 

6.8 

6.8 

6.6 

7.0 

7.0

10

11

9

2.1

9

8 

18 

32 

88 

28 

6.6 

4.8 

.6

.6

Aug.

7.0 

7.9 

9.7

12 

13

16 

15 

15 

14 

14

13 

14

14 

15 

16

14

11 

8.2 

8.5 

7.9

7.0 

7.9 

6.0 

5.0 

7.0

8.5 

6.0 

6.6 

4.8 

6.4 

5.2

Mean

16.8 

15.2 

11.9

35.3

18.3 

12.4 

22.7 

93.3 

143 

80.1 

15.3 

10.2 

6.02

37.2

Sept.

6.6 

5.4 

4.4

2.3

1.4

1.5 

1.4 

.6 

1.4 

3.0

6.2 

6.8 

6.8

6.6

6.6

6.6 

6.6 

7.3 

9.1 

9.4

8.8 

9.1 

8.5 

8.2 

8.2

8.2 

7.3 

7.6 

7.0

7.6

Runoff In 

acre-feet

1,030 

904 

730

25,560

1,130 

686 

1,390 

5,550 

8,800 

4,760 

943 

626 

358

26,910

* Winter discharge measurement made on this day.

Note .--Stage-discharge relation affected by ice Nov. 21, 22, Dec. 3 to Mar. 1, Mar. 12-15.
OWYHEE RIVER BASIN 129

Wild Horse Reservoir near Gold Creek, Nev.

Location.--Reference point on Wild Horse Dpm on Owyhee River, lat. 41°41'10", long.

115-51"20", in NEpWt sec. 25, T. 44 N., R. 54 E., 8 miles west of Gold Creek. Datum of 

gage is 6,109.18 feet above mean sea level (levels by Office of Indian Affairs).

Drainage area.--209 square miles.

Records available.--March 1938 to September 1950.

Extremes.--Maximum contents observed during year, 33,900 acre-feet Apr. 30 (gage height, 

su .bb feet); minimum observed, 10,400 acre-feet Oct. 19.

1938-50: 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, 

32TK90 acre-feet between gage heights 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.--Part of gage-height record and base data for capacity table furnished by 

Office of Indian Affairs.

acre-feet, water year October 1949 to Septembe

Date

Oct. 11 

19

31

Nov. 16

30

Dec. 15

31

Jan. 21

30

Feb. 28

Contents

10,490 

1O,4OO

10,470

10,660

10,840

10,840

bll,200

11,700

b!2,200

13,890

Date

Mar. 3 

20

31

Apr. 3

20

22

30

May 15

17

31

Contents

14,020 

16,820

19,140

20,730

3O,68O

32,420

33.9OO

33,530

33,680

33,490

Date

June 16 

19

22

30

July 19

31

Aug. 21

30

Sept. 19

30

Contents

32,820 

32,540

32,110

29,690

25,300

S3, 360

18,510

16,490

12,870

12,120

b Contents computed from gag
130 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 N., 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 1950.

Average discharge.--21 years (1917-21, 1922-25, 1936-50), 41.7 second-feet (unadjusted).

Extremes. Maximum discharge during year 243 second-feet Apr. 29 (gage height, 3.61 feet);

 no flow Oct. 20 to Apr. 21.

1916-25, 1936-50: 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; no flow at times when reservoir gates were closed.

Remarks.--Records good. Small diversions above station for irrigation. Flow regulated 

by Wild Horse Reservoir beginning Mar. 18, 1938 (see preceding page).

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

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19 

19 

19 

19 

19

19 

19 

19 

19 

19

14 

6.6 

6.8 

6.8 

6.8

6.8 

6.8 

6.8 

4.2 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Deoe

ca

Janu 

Febr 

Marc 

Aprl

Mftu

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

ember

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

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

2.9

61 

115 

151

177 

202 

229 

241 

231

Secondfoot-days

255.6 

0 

0

13,530.6

0 

0 

0 

1,409.9 

4,738 

2,596 

2,761 

3,310 

1,961

17,031.5

Hay

226 

235 

222 

202

195

198 

173 

164 

161 

152

142 

138 

134 

. 139 

154

160 

162 

164 

160 

152

149 

144 

139 

133 

128

123 

113 

103 

97 

91 

85

Maximum

19 

0 

0

200

0 

0 

0 

241 

235 

149 

146 

126 

124

241

June

80 

70 

68 

65 

60

53 

54 

58 

59 

56

48 

44 

40 

38 

36

49 

71 

64 

83 

99

98

115 

149 

149 

149

149 

148 

148 

148 

148

Minimum

July

146 

145 

145 

145 

145

145 

145 

144 

144 

120

66 

66 

66 

65 

65

65 

65 

55 

35 

35

35 

41 

49 

60 

69

69 

69 

69 

81 

106 

106

0 

0 

0

0

0 

0 

0 

0 

85 

36 

35 

61 

27

0

Aug.

107 

107 

106 

107 

107

107 

107 

107 

107 

108

108 

108 

108 

108 

107

108 

108 

108 

108 

107

107 

107 

116 

113 

61

78 

106 

106 

118 

126 

124

Mean

8.25

0 

0

37.1

0 

0 

0 

47.0 

153 

86.5 

89.1 

107 

65.4

46.7

Sept.

124 

123 

123 

123 

123

123 

121 

107 

86 

86

72 

50 

50 

49 

49

49 

49 

49 

49 

49

48 

37 

27 

27 

28

28 

28 

28 

28 

28

Runoff In 

acre-feet

507 

0 

0

26,850

0 

0 

0 

2,800 

9,400 

5,150 

5,480 

6,570 

3,890

33,800
OWYHEE RIVER BASIN 131

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

Location.--Water-stage recorder, lat. 41°55'20", long. 116°04'10", In NW-£ sec. 6, T. 46 

N., K. 53 E., 1,000 feet downstream from Skull Creek, 1 mile upstream from China diversion dam, and 2 miles southeast of Owyhes.

Drainage area.--458 square miles.

Records available.--March 1939 to September 1950.

Average discharge. 11 years, 143 second-feet.

Extremes.--Maximum discharge during year, 822 second-feet May 17 (gage height, 7.27 feet); 

minimum, 10 second-feet Dec. 14.

1939-50: 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 or no gage-height record, 

wnicn are fair. Diversions above station for irrigation. Flow partly regulated by 

Wild Horse Reservoir (see p. 129).

Rating table, water year 1949-50, except periods of Ice effect

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

(Shifting-control method used Oct. 1-17, Dec. 1-18)

1.3

1.5 

1.8 45

2.0 

2.5 

3.5

61

108

211

5.0 

6.0 

7.2

394

559

806

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

33 

32 

32

30 

32

32 

35 

39 

37 

41

41 

37 

30 

27 

26

25 

24 

24 

24 

24

21 

19 

18 

18 

18

17 

16 

16 

16 

16 

16

Nov.

16 

16 

16 

16 

16

16 

16 

18 

20 

24

24 

22 

22 

22 

21

*20 

20 

20 

20 

19

18 

19 

19 

20 

18

18 

18 

18 

18 

18

Dec.

16 

16 

18 

18 

19

19 

18 

17 

17 

17

17 

17 

18 

15 

 20

20 

20 

22 

22 

21

20 

21 

22 

22 

20

20 

21 

23 

23 

22 

22

Jan.

22 

22 

23 

24 

25

26 

27 

30 

29 

27

25 

26 

28 

30 

32

35 

35

40 

50 

45

60 

70 

60 

50 

60

60 

60 

60 

60 

60 

60

Feb.

60 

*60 

60 

65 

70

90 

120 

100 

90 

85

80 

80 

85 

90 

95

10O 

110 

83 

77 

83

66 

61 

64 

75 

117

136 

157 

116

Month

Ooto 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Ha

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

lendar year 1949 

apy

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

Mar.

101 

101 

*128 

153 

167

168 

146 

151 

121 

114

93 

93 

83 

95 

85

97 

169 

207 

268 

368

298 

248 

224 

246

305

240 

207 

193 

166 

211 

287

Apr.

300 

363 

378 

335 

319

313 

339 

361 

356 

335

306 

306 

347 

411 

378

395 

402 

441 

451

477

567 

627 

593 

567 

573

577 

663 

693 

669 

617

Secondfoot-days

816 

568 

603

55,552

1,261 

2,475 

5,533 

13,459 

16,945 

6,718 

3,668 

3,579 

2,330

57,955

May

591 

611 

569 

517 

492

501 

460 

430 

424 

417

420 

436 

490 

577 

689

749 

786 

782 

735 

677

639 

627 

623 

605 

555

506 

464 

434 

400 

378 

361

Maximum

41 

24 

23

913

70 

157 

368 

693 

786 

344 

203 

134 

142

786

June

344 

323

301 

278 

263

247

266 

269 

244 

214

197 

190 

179 

178 

165

158 

178 

174 

166 

189

192 

203 

227 

244 

246

230 

222 

216 

211 

204

Minimum

July

203 

202 

198 

195 

188

187 

188 

190 

194 

196

148 

104 

90 

88 

86

84 

83 

84 

72 

59

55 

54 

56 

61 

72

77 

77 

75 

77 

105 

120

16 

16 

15

-

22

60 

83 

300 

361 

158 

54 

65 

37

15

Aug.

118 

114 

118 

122 

124

125 

121 

120 

116 

120

119 

122 

122 

120 

115

116 

115 

113 

114 

114

115 

112 

110 

134 

98

65 

92 

109 

110 

133 

133

Mean

26.3 

18.9 

19.7

152

40.7 

88.4 

178 

449 

547 

224 

118 

115 

77.7

159

Sept.

132

131 

127 

129 

132

133 

134 

142 

115 

99

98 

74 

60 

58 

58

58 

56 

55 

56 

56

55 

55 

49 

41 

39

38 

37 

37 

38 

38

Runoff In 

acre-feet

1,620 

1,130 

1,200

110,200

2,500 

4,910 

10,970 

26,700 

33,610 

13,320 

7,280 

7,100 

4,620

115,000

Peak discharge (base, 580 see.-ft.).--Mar. 20 (4:30 a.m.) 487 sec.-ft.; Apr. 3 (7:30 a.m.) 394 

sec.-ft.; May 17 (9 p.m.) 822 sec.-ft.

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by lee Dec. 5, 6, 8-11, Dec. 19 to Feb. 16 (no gageheight record Jan. 26 to Feb. 2, Feb. 9-16; discharge computed on basis of 1 discharge measurement, 

weather records, and engineer's notes).
132 OWYHEE RIVER BASIN

Owyhee River near Rome , Oreg.

Location.--Water-stage recorder, lat. 42°52', long. 117°38', in NWv sec. 13, T. 31 S.

 K. 41 E. , 800 feet downstream from Jordan Creek and 2-| miles north of Rome.

Drainage area.--About 8,000 square miles.

Records available.--October 1949 to September 1950.

Extremes. Maximum discharge during year, 5,370 second-feet Apr. 1 (gage height, 6.94

 i'eet); minimum, 86 second-feet Sept. 4-6 (gage height, 0.77 foot).

Remarks.--Records good except those for periods of no gage-height record, 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.--Records obtained in cooperation with Bureau of Reclamation.

Rating table, water year 1949-50, except periods of ice effect 

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

- 0.7 71 1.5 315 4.1 2,120 

.8 93 1.8 450 5.1 3,120 

.9 118 2.2 660 6.4 4,660 

1.1 175 2.7 980 

1.3 240 3.3 1,430

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

110 

110 

110 

110

aio

110 

110 

110 

115 

120

120 

120 

125 

125 

130

130 

135 

135 

140 

140

140 

140 

140 

140 

140

140 

140 

140 

140 

140 

140

Nov.

135 

135 

135 

135 

135

135 

135 

135 

135 

135

140 

140 

140 

140 

140

140 

145 

145 

150 

150

150 

155 

155

160

160

160 

160 

160 

160

160

Dec.

160 

160 

160 

160 

160

160 

160 

160 

 160 

148

b!40 

129 

113 

129 

137

163 

151 

151 

151 

b!50

145 

145 

145 

148 

b!50

b!50 

148 

145 

148 

154 

148

Jan.

145 

b!45

b!40 

123

126

123 

148

169 

163 

160

157 

157 

151 

154

126

148 

172 

163 

157 

166

184 

226 

718 

1,040 

*S28

708 

636 

545 

595 

560 

505

Feb.

450 

415 

368 

343 

485

545 

b575

b600 

720 

702

624 

565 

510 

475 

560

678 

702 

875 

810 

868

987 

945 

798 

714 

822

1,530 

1,970 

2,050

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Ha

lendar year 1949

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

Mar.

1,650 

1,340 

*1,150 

1,400 

2,080

2,160 

1,790 

1,370 

1,100 

938

804 

714 

648 

580 

540

475 

550 

1,020 

2,060 

2,830

2,920 

2,770 

2,37r 

1,960 

2,120

2,790 

2,520 

1,960 

1,590 

1,370 

1,720

Apr.

3,980 

4,610 

4,150 

3,330 

2,700

2,250 

2,330 

2,480 

2,570 

2,380

2,150 

2,060 

2,170 

2,320 

2,550

2,330 

2,270 

2,390 

2,490 

2,450

2,420 

2,450 

2,520 

2,610 

2,550

2,330 

2,170 

2,100 

2,070 

2,030

Secondfoot-days

3,955 

4,360 

4,628

-

9,538 

21,686 

49,289 

77,210 

50 , 800 

16,576 

6,398 

3,808 

4,333

252,581

Peak discharge (base, 3,000 sec. -ft.) .--Mar. 21 (12:30

May

2,000 

1,980 

1,980 

2,020 

1,990

1,960 

1,880 

1,800 

1,660 

1,560

1,450 

1,360 

1,310 

1,350 

1,450

1,570 

1,600 

1,770 

1,860 

1,850

1,820 

1,760 

1,700 

1,640 

1,610

1,550 

1,470 

1,360 

1,250 

1,160 

1,080

Maximum

140 

160 

163

-

1,040 

2,050 

2,920 

4,610 

2,020 

1,000 

299 

154 

275

4,610

June

1,000 

917 

861 

798 

732

666 

630 

600 

606 

684

708 

690 

636 

585 

555

535 

525 

545 

470 

396

355 

319 

319 

323 

339

355 

360 

368 

360 

339

July

299 

268 

244 

233 

230

216 

208 

199 

196 

193

199 

205 

226 

247 

279

283 

258 

240 

219 

199

196 

190 

184 

181

169

163 

148 

134 

134 

129 

129

Aug.

129 

123 

121 

126 

134

140 

151 

154 

145 

142

140 

137 

137 

134 

140

137 

126 

123 

121 

116

116 

113 

113 

106 

103

103 

100 

96 

96 

93 

93

Sept.

93 

96 

93 

89

86

89 

91 

106 

118 

137

190 

178 

275 

236 

205

196 

187 

175 

166 

157

142 

134 

129 

132 

137

140 

137 

137 

140 

142

Minimum Mean »£«£

110 128 7,840 

135 145 8,650 

113 149 9,180

-

123 308 18,920 

343 774 43,010 

475 1,590 97,760 

2,030 2,574 153,100 

1,080 1,639 100,800 

319 553 32,880 

129 206 12,690 

93 123 7,550 

86 144 8,590

86 692 501,000

a.m.) 3,790 sec. -ft.; Mar. 26 (5 a.m.)

.) 3,100 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. No gags-height record Oct. 1-31, Nov. 2 to Dec. 8; discharge computed on basis of re 

for station above Owyhee Reservoir.
OWYHEE RIVER BASIN

Owyhee River above Owyhee Reservoir, Oreg.

Location.--Water-stage recorder, lat. 43°13', long. 117°30', in SE£ sec. 18, T. 27 S., R. 

43 JS. , 3 miles upstream from flow line of Owyhee Reservoir and 8 miles southwest of 

Watson. Altitute of gage, about 2,690 feet above mean sea level (levels by Bureau 

of Reclamation).

Drainage area. 10,400 square miles.

Kecoras available.--October 1930 to September 1950 in reports of Geological Survey, April 

laaa to September 1941 in reports of Oregon State engineer.

Average discharge.--21 years, 831 second-feet.

Extremes.--Maximum discharge during year, 5,300 second-feet Apr. 1 (gage height, 9.05 

reet); minimum, 114 second-feet Jan. 14 (gage height, 3.53 feet).

1929-50: Maximum discharge, 16,000 second-feet Mar. 20, 1932, Apr. 19, 1936; maximum gage height, 12.95 feet Mar. 20, 1932; minimum discharge, 99 second-feet Dec. 18, 

1948 (gage height, 3.45 feet).

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

which are poor. Diversions above station for irrigation. Flow slightly regulated by 

11 small reservoirs which have a total capacity of 52,000 acre-feet.

Cooperation. Water-stage recorder inspected and some discharge measurements made by 

Bureau of Reclamation.

Revisions (water year) . W 793: 1932(M).

Rating table, water year 1949-50, except periods of Ice effect 

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

3.8 172 5.7 1,100 

4.1 256 6.4 1,640 

4.4 36O 7.2 2,450 

4.8 535 8.0 3.48O 

5.2 760 8.7 4,620

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

177 

185 

180 

180 

182

177 

180 

180 

185 

190

195

201 

201 

204 

206

212 

215 

218 

229 

232

226 

223 

223 

223 

223

223 

223 

226 

226 

226 

229

Nov.

226 

223 

223 

218 

215

215 

218 

218 

220

220

220 

223 

226 

226 

229

226 

235 

238 

238 

235

238 

235 

235 

238 

238

241 

235 

238 

235 

235

Dec.

229 

229 

229 

229 

. 229

226 

226 

226 

220 

218

229 

212 

212 

209

204

218 

235 

232 

232

226

223 

232 

220 

229 

220

223 

235 

229 

232 

229 

232

Jan.

232 

229 

b220 

b210 

b200

b200 

209 

232 

*256 

244

241 

238 

b230 

b220 

b200

b210 

b220 

b225 

b230 

244

250 

266 

312 

1,020 

960

814 

718

676 

555 

607 

b550

Feb.

b50O 

b450 

b400 

b370 

412

6O2 

670 

694 

742 

827

790 

706 

634 

624 

682

766 

766 

911 

974 

960

1,040 

1,060 

988 

904 

841

1,110 

1.B60 

2,000

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Hare 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

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

lendar year 1949

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

Mar.

1,780 

1,480 

1,230 

1,200 

1,770

2,090 

1,970 

1,540 

1,260 

1,080

932 

802 

736 

682 

612

585

607 

640 

1,650 

2,410

3,140 

2,840 

2,450 

2,180 

2,030

2,550 

2,690 

2,140 

1,770 

1,500 

1,370

Apr.

3, 

4, 

4, 

3, 

2,

2 

2 

2, 

2 

2

2 

2 

2, 

2, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2,

2,

2, 

2, 

2, 

2, 

2,

Secondfoot-days

6,400 

6,860 

6,974

312,580

11,218 

23,283 

49,716 

77,730 

51,830 

19,014 

9,165 

6,409 

6,682

275,281

Peak discharge (base, 3,100 sec. -ft.). Mar. 21 (11:30

070 

550 

530 

740 

980

350 

330 

420 

550 

560

300 

100 

090 

260

560

400 

310 

320 

470 

490

430 

420 

450 

560 

590

460 

230 

110 

060 

040

May

2,010 

1,980 

1,960 

2,000 

2,010

1,970 

1,930 

1,860 

1,760 

1,640

1,550 

1,450 

1,380 

1,340 

1,410

1,500 

1,620 

1,700 

1,800 

1,860

1,840 

1,800 

1,750 

1,680 

1,630

1,570 

1,540 

1,460 

1,370 

1,270 

1,190

Maximum

232 

241 

235

9,960

1,020 

2,000 

3,140 

4,550 

2,010 

1,130 

400 

229 

338

4,550

June

1,130 

1,040 

981 

918 

848

778 

712 

676 

652 

658

730 

760 

748 

694 

634

607 

590 

580 

590 

530

462 

424 

400 

400 

396

400 

420 

416 

420 

42O

July

400 

372 

342 

a320 

298

292 

272 

266 

256 

a250

a260 

a280 

a300 

a350 

a400

a400 

a380 

a350 

a330 

a310

a300 

a300 

a280 

a270 

a260

a250 

3240 

223 

204 

206 

204

Aug.

204 

204 

201 

201 

204

212 

215 

226 

229 

226

223

220 

220 

220 

220

220 

223 

212 

206

206

204 

201 

193 

198 

195

193 

193 

188 

185 

182 

185

Minimum Mean

177 206 

215 229 

204 225

165 856

200 362 

370 832 

585 1,604 

2,040 2,591 

1,190 1,672 

396 634 

204 296 

182 207 

175 223

175 754

Sept.

182 

180 

182 

182 

180

177 

177 

175 

185 

206

212

266 

247 

338 

302

282 

278 

269 

256 

247

232 

223 

215 

212

209

212 

212 

212 

212 

220

Runoff in 

acre-feet

12,690 

13,610 

13,830

620,000

22,250 

46,180 

98,610 

154,200 

102,800 

37,710 

18,180 

12,710 

13,250

546,000

a.m.) 3,720 sec. -ft.; Mar. 26 (3 p.m.)

3,110 sec.-ft.; Apr. 1 (12 p.m.) 5,300 sec.-ft. 

* Winter, discharge measurement made on this day.

a Na gage-height record; discharge computed on basis of records for station near Rome. 

b Stage-discharge relation! affected by Ice.
134 OWYHEE RIVER BASIN

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., at

Owyhee Dam, 21 miles southwest of Nyssa. Datum of gage is at mean sea level (levels by 

Bureau of Reclamation).

Drainage area.--11,160 square miles.

Records available. October 1932 to September 1950.

Extremes.--Maximum contents observed during year, 1,063,000 acre-feet May 25 (elevation, 

 27E55.29 feet); minimum observed, 726,400 acre-feet Oct. 6 (elevation, 2,633.45 feet). 

1932-1950: Maximum contents observed, 1,125,000 acre-feet June 11, 1936 (elevation,

2,670.27 feet); minimum observed since full capacity was attained May 7, 1936, 630,500

acre-feet Sept. 30, 1948 (elevation, 2,622.29 feet).

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), 715,000 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 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 miles downstream. Gpge read once daily.

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

Monthly elevation water year October 1949 to September 1950

Nov.

Dec.

July

Sept.

Wat

Date

31. ....................

30.. ...................

er year 1949-50. .......

Elevation 

(feet)t

2,637.28

2,636.78

-

Contents 

(acre-feet)

761,6OO

756,900

-

Change In contents 

during month 

(acre-feet)

-1,000

+13,200

+1OO, 7OO

+6,900

-72,100

+21,400
OWYHEE RIVER BASIN 135

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-quarters 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 1950.

Average discharge. 21 years, 373 second-feet.

Extremes. Maximum discharge during year, 182 second-feet July 5; minimum observed, 4

 second-feet Oct. 10, Mar. 31 (gates closed at Owyhee Dam), but may have been less during

periods of no gage-height record.

1924-50: 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 except those for periods of no gage-height record and those for Aug. 

15 to Sept. 30, which are poor. Diversions above station for irrigation. Plow regulated by Wild Horse and Owyhee Reservoirs (see p. 129, 134).

Cooperation.--Water-stage recorder inspected by Bureau of Reclamation. 

Revisions (water years). W 983: 1941-42.

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

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.

> a4 

4

> a4

Octo 

Hove 

Dece

Ca

Janu; 

Pebn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Hov.

a4

Dec.

a4

Jan.

a4

Feb.

a4

Month

sber. ...................................

lendar year 1949

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

Mar.

a4 

h4

Apr.

a4 

a4 

a5 

as 

a5

a6 

a6 

a6 

a7 

a7

h65 

102 

96 

99 

105

113 

133 

110 

96 

99

102 

115 

131 

136 

127

137 

146 

146 

146 

144

Secondfoot-days

124 

120 

134

15,564

124 

113 

134 

3,383 

4,175 

4,335 

3,317 

2,880 

4,263

31,970

Hay

146 

146 

67 

16 

16

90 

134 

129 

136 

137

142 

157 

163 

168 

178

h79 

h87 

139 

132 

146

157 

153 

151 

157 

166

166 

16b 

168 

166 

166 

159

Maximum

_

199

146 

178 

159 

178 

155 

164

178

June

157 

157 

157 

159 

159

153 

153 

131 

118 

120

124 

131 

131 

131 

131

131 

133 

133 

132 

143

151 

151 

151 

144 

137

137 

137 

137 

146 

153

Minimum

July

161 

174 

178 

178 

178

178 

178 

178 

153

139

137 

141 

100 

83 

86

86 

73

67 

67 

67

67 

67 

67 

67 

67

73 

75 

63 

56 

56 

58

:

-

4 

16 

118 

56 

35 

123

-

Aug.

50 

46 

49 

44 

39

36 

37 

37 

38 

40

37 

35 

36 

37 

109

144 

132 

129 

124

127

137 

137 

137 

137 

137

137 

141 

144 

144 

148 

155

Mean

4.0 

4.0 

4.0

42.6

4.0 

4.0 

4.0 

79.4 

135 

141 

107 

93.9 

143

60.3

Sept.

155 

155 

157 

159 

161

161 

164 

164 

163 

159

159 

157 

157 

142 

135

135 

137 

127 

133 

134

133 

124 

136 

136 

134

124 

129

135 

131 

127

Runoff In 

ao re-feet

246 

338 

246

30,860

346 

222 

246 

4,730 

8,280 

8,380 

6,580 

5,710 

8,460

43,570

a Ho gage-height records flow represents leakage computed on basla of measurements Oct. 10, Mar. 

h Computed from staff-gage reading.
136 OWYHEE RIVER BASIN

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

Location.--Water-stage recorder, lat. 42°53', long. 116°59', in NWi 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 1950.

Extremes.--Maximum discharge during year, 1,490 second-feet Apr. 22 (gage height, 4.72 

feet); minimum, 1.8 second-feet Sept. 5, 6 (gage height, 0.74 foot).

1945-50: Maximum discharge, 5,100 second-feet Apr. 19, 1946 (gage height, 5.44 

feet); no flow part of day Oct. 4, 5, 1948.

Remarks.--Records fair. Diversions above station for irrigation.

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

Day

1 

2 

3 

4

5

6 

7

e

9 

10

11

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.7 

6.7 

6.7 

6.4 

6.4

6.4 

8.3 

9.2 

8.9 

9.2

9.5 

9.2 

9.2 

8.9 

8.3

8.6 

8.6 

8.9 

9.2 

9.2

10 

10

11 

11

10

10 

10 

10 

10 

10 

- 10

Nov.

10 

10

11 

*11 

10

10

11 

11

14 

17

18 

16 

16 

15 

15

15 

15 

15 

15 

14

13 

13 

14 

14 

15

16 

16 

16 

15 

15

Dec.

15 

15 

15 

b!2 

14

12 

13 

14 

12 

9.2

bS.O 

bS.O 

13 

14 

14

15 

15 

15 

14 

12

16 

*16

16 

14 

13

18 

17 

16 

16 

16 

14

Jan.

13 

14 

11 

14 

16

19 

19 

18 

16 

17

16 

16 

15 

15 

16

17 

18 

20 

29

b50

b80 

b230 

b230 

127 

77

79 

96

88 

69 

62 

61

Feb.

70 

67 

76 

88 

92

127 

122 

83 

*72 

65

59 

47 

55 

59 

94

122 

129 

129

141 

141

111 

107 

111 

146 

227

246 

270 

215

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194

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

Mar.

198 

182 

237 

322 

339

326 

274 

253 

224 

210

182 

160 

143 

173 

153

160 

299

475 

510 

490

425 

402

366 

411 

475

430 

370 

322 

270 

318 

420

Apr.

580 

766 

688 

568 

532

532 

538 

556 

532 

500

505 

592 

812 

838 

712

700 

896 

,080 

,000 

,040

,280 

,350 

,160 

858 

742

706 

688 

634 

538 

480

Secondfoot-days

276.5 

416 

431.2

47,750.5

1,568 

3,271 

9,519 

22,403 

16,623 

6,068 

802.8 

192.9 

140.7

61,712.1

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected bv ice .

May

505 

505 

475 

440 

406

393 

366 

352 

339 

330

375 

480 

610 

760 

877

864 

858 

786 

664 

610

610

628 

676 

622 

532

480 

440 

430 

406 

406 

398

Maximum

11 

18 

18

1,280

230 

270 

510 

1,350 

877 

357

12 

13

1,350

June

357 

330 

314 

284 

274

266 

299 

295 

246 

227

210 

230 

234 

215 

212

210

192 

182 

168 

153

150

141 

127 

134 

138

118 

107 

94 

85 

76

July

67 

65 

58 

54

46

34 

38 

38 

34 

34

35 

33 

30 

26 

17

17 

15 

12 

13 

13

13 

13 

13 

13 

13

12 

10 

9.5 

9.2 

8.9 

9.2

Aug.

9.2 

9.5 

8.9 

10 

12

12 

9.5 

10 

7.6 

7.0

6.7 

6.7 

6.7 

6.7 

6.1

6.1 

5.6 

5.1 

4.8

4.6

4.3 

4.1 

3.8 

3.6 

3.4

3.4 

3.1 

3.1 

3.1 

3.1 

3.1

Minimum Mean

6.4 8.92 

10 13.9 

8.0 13.9

1.1 131

11 50.6 

47 117 

143 307 

480 747 

330 536 

76 202 

8.9 25.9 

3.1 6.22 

2.3 4.69

2.3 169

Sept.

2.7 

2.5 

2.3 

2.3 

2.3

2.3 

2.3 

3.1 

13 

12

8.0 

7.0

6.4 

4.8 

3.6

3.6 

3.8 

4.3 

5.6 

6.1

5.1 

4.6 

4.3 

3.8 

3.8

3.8 

3.8 

3.8 

4.6 

5.1

Runoff In 

acre -feet

548 

825 

855

94,720

3,110 

6,490 

18,880 

44,440 

32,970 

12,040 

1,590 

383 

279

122,400
OWYHEE RIVER BASIN 137

Crooked Creek near Rome, Oreg.

Location.--Water-stage recorder, lat. 42°48', long. 117°44', in sec. 6, T. 32 S., R. 41 

ft. , b miles southwest of Rome and 9 miles above mouth.

Drainage area.--About 1,700 square miles.

Records available.--October 1949 to September 1950.

Extremes.--Maximum discharge during year, 28 second-feet sometime during Jan. 13-24; 

maximum gage height, 1.12 feet Sept. 9-14 (backwater from moss); minimum discharge, 

22 second-feet Sept. 9, 10.

Remarks. Records good. Several small diversions above and "below station for irrigation. 

Cooperation.--Records obtained in cooperation with Bureau of Reclamation.

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

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

a24 

a24 

a24 

a24 

a24

a24 

a24 

a24 

a24

a24

a24 

a24 

a24 

a24 

a24

a24 

a24

a24 

a24 

a24

a24 

a24 

a24 

a24 

a24

a24 

a24 

a24 

a24 

a24 

a24

Nov.

24 

24 

24 

24 

24

24 

24 

2 

2 

2

2 

2.

Dec.

24 

24 

24 

24 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

24 

25 

25 

25 

25

25 

25 

25 

25 

25 

25

Jan.

25 

25 

25

25

26

26 

26 

26 

26

26 

26 

a2S 

a26 

a26

a26 

a26 

a26 

a26 

a26

a26 

a26 

a26 

a26 

26

26 

26

26

26 

26

Feb.

26 

25 

25

26 

26

26 

25 

25 

25 

25

25 

25

25 

25

26

26 

26 

26 

26 

26

26 

26

26 

26 

26

26

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

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

lendar year

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

Mar.

26 

26 

25 

26 

26

26

26

26

26

26 

26 

26 

26

26 

26 

26 

25 

25

25

25 

25

26

25 

25

25 

24 

25 

25

Apr.

24 

24 

24 

24 

24

25 

25

25 

25 

25

24 

24 

26 

25 

25

25 

25 

24 

24 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

Secondfoot-days

744 

720 

754

-

802 

718 

793 

731 

744 

708 

744 

723 

717

8,898

May

24

24 

24

24 

24

24 

24 

24 

24 

24

24

24 

24 

24 

24

24 

24 

24 

24 

24

24

24 

24 

24 

24

24 

24 

24

24 

24 

24

Maximum

24 

24 

25

-

26 

26 

26

2 

2

2£

June

24 24' 

24 

24 

24

24

23 

23

22

23 

23 

23 

23

22 

24 

24 

24

24

24

24 

24

24 

24

24 

24 

a24 

a24 

a24

Hnl»

July

324

a24 

a24 

a24 

a24

a24 

a24 

324 

a24

a24

a24 

a24 

a24 

a24 

324

a24 

a24 

24 

a24 

324

a24 

324 

324 

a24

a24

a24 

a24 

a24 

324 

a24 

a24

24 

24 

24

-

25 

25

24 

24 

24 

22 

24

23

22

Aug.

a24 

a24 

a24 

a24 

a24

a24

a24 

324 

323

323

a 23

323 

a23 

323 

323

323

323 

323

a23 

a23 

323 

a23 

323

323 

a23 

23 

23 

24 

24

Mean

4.0 

4.0 

4.3

-

5.9

5.6 

5.6 

4.4 

4.0 

3.6 

4.0 

3.3 

3.9

24.4

Sept.

23 

23 

23 

24 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

24 

24 

24 

24 

24

24

24 

24 

24

. 24

24 

24 

24 

24 

24 

24

ac^e-fee"

1,480 

1,430 

1,500

-

1,590 

1,420 

1,570 

1,450

1,480 

1,400

1,430 

1,420

17,650

3 No gage-height record; discharge Interpolated.

253646 O - 53 - 10
138 BOISE RIVER BASIN

Boise River near Twin Springs, Idaho

Location.--Water-stage recorder, lat. 43°40', long. 115°44 1 , in sec. 27, T. 4 N., R. 6 E. 

a quarter of a mile upstream from Birch Creek, l| miles upstream from flow line of 

Arrowrock Reservoir, 4 miles downstream from Twin Springs, and 13 miles upstream from 

Arrowrock. Datum of gage Is 3,251.08 feet above mean sea level (unadjusted).

Drainage area.--830 square miles.

Records available.--March 1911 to September 1950.

Average discharge.--39 years, 1,132 second-feet.

Extremes.--Maximum discharge during year, 6.570 second-feet May 24 (gage height, 6.64 

reet); minimum, 179 second-feet Dec. 12 (gage height, 1.72 feet).

1911-50: 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, 

slon or regulation.

Rating table, water year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Aug. 15 to Sept. 30)

No diver1.9 222 3.7 1,620 

2.1 292 4.3 2,440 

2.4 445 5.0 3,520 

2.7 640 5.7 4,730 

3.2 1,060 6.4 6,090

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

320 

315 

306 

310 

369

428 

390 

385 

364 

412

390 

390 

396 

380 

364

364 

359 

359 

359 

359

354 

354 

348 

343 

348

343 

343

343 

385 

364 

338

Nov.

338 

333 

329 

329 

324

324 

324 

343 

423 

440

385 

369 

364 

364 

354

348 

354 

348 

329 

315

301 

297 

406 

728 

688

557 

544 

952 

760 

648

Dec.

564 

531 

463 

374 

451

451 

406 

406 

380 

324

228 

222 

505 

385 

333

451 

434 

423 

412 

359

348 

401 

412 

423 

369

390 

396 

364 

338 

374 

359

Jan.

333 

359 

297 

265 

254

369 

412 

428 

396 

385

385 

369 

364 

310 

277

324 

457 

434 

418 

512

752 

898 

970 

840 

656

550 

557 

550 

499 

445 

396

Feb.

380 

333 

329 

505 

550

538 

505 

475 

463 

457

445 

428 

418 

428 

428

451 

475 

487 

512 

544

532 

512 

524

570

800

1,040 

1,100 

1,100

Month SecondMonttl foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay 

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

11,182 

12,918 

12,276

427,263

1

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

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

14,461 

15,328 

25,353 

72,290 

21,690 

33,510 

65,149 

19,362 

13,832

ter year 1949-50 .......... 517,351

Mar

988 

907 

864 

824 

898

1,040 

952 

889 

816

760

696 

605 

591 

619 

591

570 

864 

1,240 

1,070 

952

889 

880 

840 

824 

832

784 

768 

728 

656 

672 

744

Maximum

428 

952 

564

6,760

970 

1.10O 

1,240 

4,510 

6,150 

5,590 

4,790 

961 

720

6,150

Apr.

970 

1,420 

1,400 

1,230 

1,200

1,300 

1,570 

1,850 

1,830 

1,840

1,850 

2,130 

2,640 

2,710 

2,460

2,560 

3,150 

3,310 

3,150

3,310

4,050 

4,510 

3,850 

3,150 

2,770

2,600 

2,640 

2,580 

2,230 

2,030

Hay

£,160 

2,130 

1,960 

1,870 

1,790

1,670 

1,580 

1,600 

1,600 

1,700

2,120 

2,840 

3,820 

4,820 

5,790

5,830 

5,830 

5,690 

4,600

4,020

4,140 

3,050 

6,150 

6,090 

5,400

5,020 

5,220 

5,470 

5,340 

S,200 

5,190

Minimum

306 

297 

222

222

254 

329 

570 

970 

1,580 

3,070 

840 

440 

396

222

Peak discharge (base, 3,700 see. -ft.). Apr. 22 (3:30 a.m.) 4

June

5,280 

5,490 

5,070 

4,940 

5,260

5,590 

5,530 

4,660 

3,870 

3,490

3,540 

3,900 

3,850 

3,880

4,100

4,320 

4,690 

4,550

4,710 

4,960

5,260 

5,380 

4,960 

4,090 

3,410

3,070 

3,220 

3,630 

4,170 

4,640

Hean

361 

431 

396

1,171

466 

547 

818 

2,410 

3,925 

4,450 

2,102 

625 

461

1,417

July

,790 

,680 

,120 

,900 

,580

,470 

,360 

,020 

,760

,650

,430 

,150 

,950 

,850

,800

,680 

,560 

,480 

,390 

,310

,230 

,170 

,130 

,090 

,040

1,010 

979 

943 

907 

880 

840

Per 

square 

mile

0.435 

.519 

.477

1.41

.561 

.659 

.986 

2.90 

4.73 

5.36 

2.53 

.753 

.555

1.71

,820 see. -ft.; May

Aug.

816 

784 

768 

800 

856

961 

808 

744 

712 

680

664 

712 

656 

626 

619

598 

577 

564 

550 

531

524

512 

499 

505 

499

493 

481 

469 

463 

451 

440

Sept.

423

412 

406 

406 

396

396 

396 

412 

688

720

538 

493 

469 

451 

451

445 

440 

469 

451 

445

428 

434 

434 

423 

418

475 

524 

469 

457 

463

Runoff

Inches Acre feet

0.50 22,180 

.58 25,620 

.55 24,350

19.14 847,400

.65 28,680 

.69 30,400 

1.14 50,290 

3.24 143,400 

5.45 241,400 

5.98 264,800 

2.92 129,200 

.87 38,400 

.62 27,440

23.19 1,026,000

16 (2 a.m.) 6,230

sec.-ft.; Hay 24 (Z to 3 a.m.; 6,570 sec.-ft 

5,220 sec.-ft.

22 (7 a.m.) 5,610 see.-ft.; July 2 (5 a.m.)
BOISE RIVER BASIN 139

Arrowrock Reservoir at Arrowrock, Idaho

Location. Graduations on upstream face of dam on Boise River, lat. 43°36' long. 1150 55',

 in K-| 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. 2,210 square miles.

Records available. October 1917 to September 1950.

Extremes. Maximum contents observed during year, 297,200 acre-feet June 22-24, July 2 

(elevation, 3,217.8 feet); minimum observed, 9,608 acre-feet Sept. 27 (elevation, 

3,029.8 feet).

1917-50: Maximum contents observed, 301,200 acre-feet May 29, 1948 (elevation, 

3,219.1 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; 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 

3,216 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 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

29,470

28,360

27,290

27,96O

28,640

29,400

30,320

31,330

31,980

32,650

33,870

34,730

35,770

36,730

37,620

38,510

39,450

40,440

41,250

42,060

42,870

43,800

44,800

45,800

46,800

47.7OO

48.5OO

49,270

50,150

51,140

52,02O

Nov.

52,900

53,670

54,480

55,440

56,160

57,000

55,920

54,240

52,900

51,800

5O.7OO

49,380

48,100

46,800

47,800

48,830 49, no

50,480

51,360

51,250

50,040

48,720

47,500

46,900

46,600

46,30O

45.7OO

45,200

44,500

45,300

Dec.

44,900

44,300

43,900

42,780

41,790

40,890

39,990

39.O90

38,270

37,380

36,490

36,810

37,620

38,680

39,540

40,440

41,340

42,510

43,900

44,500

45,300

46,200

47 , 2OO

48,300

49,160

50.O4O

5O,92O

52,020

52,900

53,670

54,600

Jan.

55,32O

56,280

57,120

57,840

58,320

59.04O

60.OOO

61,040

61,950

63,25O

64,550

66,070

65,590

66,760

67,410

68,190

69,100

69,750

70.4OO

71,700

73,000

75,100

77,900

80,750

83,OOO

84,500

86,000

87,500

89,100

90,060

91,020

Feb.

91,820

92,460

92,940

94 , 86O

96,350

98,050

99,580

100,900

102,500

104,000

105,400

106,400

107,700

108,800

109,400

110,1OO

110,500

110,600

110,500

110,5OO

110,000

109,400

109,100

108, 6OO

108,600

109,800

111,100

112,500

_

_

-

Mar.

113,800

114,500

115,400

116,100

116,600

117, 9OO

119,700

121,100

122, 40O

123,800

124,700

125,300

125,700

127,400

129,300

131, OOO

133,200

137,600

142,200

146,600

15O.60O

154 , 200

157,700

161,100

164,200

167,600

17O.5OO

172, 9OO

174, 6OO

175, 3OO

176,200

Apr.

177,100

177,700

179,900

179,500

177,300

173,800

169,300

165,700

162, BOO

157,700

154,800

151,400

148, BOO

147, BOO

146,800

145,000

144,200

144,200

143,000

142,200

139,400

138,800

138,400

134,400

128,500

122,400

116,600

111,600

106,200

101,100

-

May

95,840

91,980

88,140

88,620

91,020

92,940

93,740

94,380

96,52O

99,240

103,200

108,600

114,300

121,500

130,600

140,200

150,200

159,800

168,800

175,700

181,500

188,500

196,400

204,300

209,800

213,500

216,500

220,000

223,700

226,800

229,700

June

232,500

235,400

237,700

239,800

241,600

245,300

251,200

258,700

264,200

268, 6OO

272.OOO

275,900

279,200

281,000

283,100

286,100

288,200

291,000

292,200

294,100

295,900

297,200

297,200

297,200

296,600

294,700

294,700

295,300

295,600

296,600

-

July

296,900

297.2OO

296,600

296,200

295,600

295,300

295,300

294,400

293,200

29O.700

29O.40O

289,100

287,900

286,400

284,300

282,500

280,400

276,800

272,600

268,600

267,700

267,700

276,700

276,700

27O.30O

274, 40O

278, 3OO

282,500

285,200

287,000

288,500

Aug.

29O,40O

287,600

282,500

277,100

272,000

267,700

263,100

258,700

254,200

249,800

245,000

24O, 3OO

235,100

230, 2OO

224, 7OO

219,000

213, OOO

207,000

2O0.70O

194, 5OO

188,300

182,100

175,700

169, 5OO

163,400

156,900

150,400

144,200

137,800

131,400

125,500

Sept.

119,700

113,800

108,100

102,300

96,52O

91,020

85,7OO

80,450

76.O8O

71,960

68,320

64,680

6O.OOO

55,440

50,920

46,400

42,600

38,840

34,890

32,500

29,470

26,13O

22,820

19,670

16,540

13,540

9,608

10,940

13,030

14,990

"

Monthly elevation and contents, water year October 1949 to September 1950

Date

Oct. 31.................

Calendar year 1949....

May 31.................

Water year 1949-50....

Elevation 

(feet)t

-

-

Contents 

(acre-feet)

-

229 700

-

Change in contents 

during month 

(acre-feet)

-33,540

-16,260

t Elevation at about 8 a.m.
140 BOISE RIVER BASIN

Boise River at Bowling Ranch, near Arrowrock, Idaho

Location.--Water-stage recorder, lat. 43°35', long. 115"58", in see. 15, T. 3 N., R. 4

 K. , 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 1950.

Average discharge .--39 years, 2,249 second-feet.

Extremes. Maximum discharge during year, 9,440 second-feet June 5 (gage height, 7.41

reet)"; minimum, 4 second-feet Dec. 20 (gage height, 0.79 foot), but may have been less 

daring period of ice effect.

1911-50: Maximum discharge, 18,800 second-feet Apr. 20, 1943 (gage height, 9.93 

feet); minimum, 1 second-foot Jan. 3, 1945, Jan. 13, 1948; 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 and those for periods of ice

 ei'feet, which are poor. Flow regulated by Arrowrock Reservoir (see preceding page) and 

Anderson Ranch Reservoir (see p. 147 ). No diversion above station.

Revisions.--W 883: Drainage area.

Discharge, in second-feet, water year October 1349 to September 1950

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

982 

838 

464 

156 

125

117 

12E 

125 

125 

72

7 

6 

5 

5 

5

5 

5 

5 

5 

5

5 

5

5 

5 

5

5 

5 

5 

6 

6

Hov.

6 

6 

6 

6

e

442 

,120

:.|i70

,120

,090 

,100 

,110 

492 

8

6 

6 

6 

221 

752

1,000 

991 

1,020 

982 

973

973 

964 

964 

812 

955

Dec.

955 

847 

937 

928 

919

910 

910 

910 

901 

892

477 

9 

*7 

7 

6

7 

7 

7 

6 

6

6 

6 

6 

7 

6

7

6 

6 

6 

6 

6

Jan.

6 

6 

6 

6 

6

6 

6

e

6 

6

6 

6 

6

6 

6

6 

6 

6

6 

10

24 

19 

17 

15 

13

12 

12 

10 

10 

10 

9

Feb.

8 

7 

7 

7 

7

10 

15 

13 

12 

*12

12 

11 

11 

117 

258

383 

572 

748 

829 

944

1,020 

,020 

,030 

,030 

,040

,040 

,050 

,050

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

,050 

,050 

, 050 

,050 

,060

1,030 

724 

724 

724 

724

724 

724 

371 

16 

15

15 

27 

30 

40

40

39 

39 

34 

34 

34

33

231 

515

692 

812 

919

Apr.

1,370 

1,640 

2,160 

2,940 

3,670

4,440 

4,660 

4,550 

4,770 

4,840

4,750 

4,660 

4,380 

4,210 

4,190

4, 150 

4, 130 

4,570 

4,810 

5, 200

5,430 

5,400 

5,960 

6,370 

6,270

6,060 

5,840 

5,590 

5,340 

5,080

Secondfoot-days

3, 240

19,507 

9,716

831,744

275

12,263 

14,570 

137,430 

196,150 

188,000 

147,660 

108,050 

73,230

910,091

May

4,815

4,530 

4,280 

4,320 

4, 510

4,590 

4, 640 

4,680 

4,790 

4,950

5,010 

4,920 

5,220 

5,520 

5,890

6,14C 

6,480 

6,400 

6,240 

6,400

6,550 

6,680 

7,280 

8,320 

8,760

8,870 

8,930 

9,020 

9,080 

9,140 

9,200

Maximum

982 

1 , 200 

955

8,410

24 

1,050 

1,060 

6,370 

9,200 

9,380 

7,090 

3,770 

3,370

9,380

June

9,260 

9,320 

9,350 

9,380 

9,050

8,180 

7,220 

6,820 

6, 840 

6,930

6,930 

5,740 

5,010 

5,040 

5,060

4,860 

4,660 

4,660 

4,730

4,680

4,990 

5,670 

5,400 

4,880 

4,730

4,750 

5,360 

5,720 

6,120 

6,660

July

6,980 

7,090 

6,740 

6,420 

6,060

5,860 

5,690 

5,240 

5, 150 

4,900

4,490 

4,360 

4, 340 

4,320 

4, 320

4, 320 

4,300 

4,300 

4,260 

4,150

4,110 

4,110 

4,110 

4, 110 

4, 110

4,130 

4,070 

3,950 

3,910 

3,910 

3,850

Minimum

5 

6 

6

-

6 

7 

15 

1,370 

4,280 

4,660 

3,850 

3,010 

1,880

5

Aug.

3,730 

3,620 

3,480 

3, 440 

3,370

3,220 

3,100 

3,030 

3,010 

3,100

3,240 

3,280 

3,310 

3,280 

3,460

3,640 

3,640 

3,640 

3,670 

3,710

3,730 

3,710

3,730 

3,750 

3,770

3,730 

3,670 

3,620 

3,580 

3,440 

3,350

Mean

105 

650 

313

2,279

8.87 

438 

470 

4,581 

6,327 

6,267 

4,763 

3,485 

2,441

2,493

Sept.

3,370 

3,310 

3,240 

3,150 

3,040

2,960 

2,940 

2,870 

2,750 

2,620

2,400 

2,540 

2,670 

2,670 

2,620

2,460 

2,360 

2,160 

1,990 

1,910

1,990 

1,950

1,940 

1,950 

1,940

1,910 

1,880 

1,880 

1,880 

1,880

Runoff In 

acre-feet

6,430 

38,690 

19,270

1,650,000

545

24,320 

28,900 

272,600 

389,100 

372,900 

292,900 

214,300 

145,200

1,805,000

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Jan. 4-20, Jan. 24 to Feb.
BOISE RIVER BASIN 141 

Diversions from Boise River between Bowling Ranch and Boise gaging stations, Idaho

Between Bowling 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 February 1939 to October 1948 in reports of Geological 

Survey. Records of daily diversion for each canal during irrigation seasons form 1916 to 

1950 on file in office of Idaho State Reclamation Engineer.

Records show summation of discharge for the six canals. Staff gages on canals read 

daily or several times weekly and discharge measurements made frequently. Field data obtained and records summarized under direction of E. B. Karn, watermaster for Boise River.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Th

lendar year

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

e period. ...............................

Mar. Apr.

1,

1, 

1,

1, 

1, 

2, 

2, 

2,

3, 

3, 

3, 

3, 

3,

Secondfoot-days

47,959 

102,850 

103,600 

103,280 

86,710 

60,600

-

100 

140 

100 

100 

090

100 

180 

200 

230 

988

740 

766 

762 

977 

020

650 

684 

952 

280 

500

550 

740 

210 

630 

910

140 

210 

300 

360 

350

May

3,370 

3,340 

3,300 

3,230 

3,250

3,220 

3,110 

3,120 

3,130 

3,160

3,240 

3,200 

3,190 

3,330 

3,350

3,390 

3,430 

3,380 

3,370 

3,350

3,390 

3,390 

3,330 

3,410 

3,400

3,410 

3,400 

3,410 

3,440 

3,400 

3,410

Maximum

3,360 

3,440 

3,590 

3,580 

3,090 

2,740

-

June

3,460 

3,460 

3,470 

3,460 

3,460

3,450 

3,470 

3,470 

3,530 

3,490

3,480 

3,440 

3,410 

3,390 

3,330

3,350 

3,340 

3,320 

3,310 

3,380

3,520 

3,550 

3,490 

3,520 

3,480

3,440 

3,520 

3,520 

3,590 

3,500

July

3,560 

3,540 

3,530 

3,530 

3,560

3,570 

3,550 

3,550 

3,550 

3,580

3,540 

3,420 

3,340 

3,360 

3,360

3,350 

3,360 

3,340 

3,340 

3,230

3,170 

3,120 

3,090 

3,090 

3,090

3,120 

3,190 

3,120 

3,040 

3,050 

3,040

Aug.

2,950 

2,840 

2,760 

2,750 

2,740

2,650 

2,430 

2,310 

2,300 

2,370

2,510 

2,580 

2,680 

2,660 

2,630

2,830 

2,900 

2,940 

3,010 

3,010

2,940 

2,980 

3,050 

3,040 

3,070

3,090 

3,010 

2,990 

2,960 

2,950 

2,780

Minimum Mean

650 1,599 

3,110 3,318 

3,310 3,453 

3,040 3,332 

2,300 2,797 

1,400 2,020

-

Sept.

2,740 

2,660 

2,600 

2,600 

2,380

2,370 

2,430 

2,350 

2,360 

2,260

2,180 

1,940 

2,280 

2,300 

2,290

2,240 

2,010 

1,980 

1,700 

1,600

1,560 

1,610 

1,580 

1,590 

1,600

1,480 

1,400 

1,460 

1,570 

1,480

Runoff In 

acre -feet

95,130 

204,000 

205,500 

204,900 

172,000 

120,200

1,002,000
142 BOISE RIVER BASIN

Boise River at Boise, Idaho

Location.--Water-stage recorder, lat. 43°37', long. 116°13', in SWi: sec. 10, T. 3 N., R.

 2~E7, at Capital 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 

September 1950.

Extremes. Maximum discharge during year, 6,820 second-feet June 1 (gage height, 6.99

 TeeT); minimum, 4 second-feet Dec. 11 (gage height, 2.23 feet); minimum daily, 14 

second-feet Dec. 11.

1940-50: Maximum discharge, 21,000 second-feet Apr. 20, 1943 (gage height, 10.00 

feet, site and datum then in use); minimum, that of Dec. 11, 1949; minimum daily, 

8 second-feet Mar. 8-15, Dec. 6, 1941.

Remarks.--Records good except those below 200 second-feet, which are fair. Flow regulated

 by Arrowrock Reservoir (see p.139 ) and Anderson Ranch Reservoir (see p.147 ). New 

York, Ridenbaugh, and four smaller canals divert between Moore Creek and this station 

(see preceding page).

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

258 

220 

225 

365 

270

193 

198 

198 

204 

209

180 

141 

108 

79 

74

70 

67 

58 

58 

56

56 

53 

53 

55 

63

67 

60 

58 

60 

63 

63

Nov.

60 

60 

58 

56 

27

24 

110 

34 

34 

27

24 

23 

22 

307 

130

79 

72 

51 

24 

23

25 

23 

23 

23

21

20 

19 

18 

18 

138

Dec.

26 

20 

19 

19 

19

19 

19 

20 

19 

19

14 

a25 

55 

53 

60

87 

87 

87 

90 

a50

a90 

alOO 

108 

115 

48

105 

108 

111 

99 

105 

65

Jan.

84 

93 

a60 

a70 

a7O

a80 

a95 

108 

108 

105

102 

a95 

a90 

a88 

a85

a85 

a85 

a90 

a85 

al40

282 

306 

400 

a350 

a280

a220 

a230 

al50 

a!70 

al50 

a!30

Feb.

a!20 

alio 

108 

166 

264

258 

252 

214 

209 

198

180 

44 

56 

60 

40

37 

36 

35 

34 

33

39 

44 

44 

84 

252

408 

415 

408

Month

Octo 

Move 

Deoe

Ca

Janu 

Pebr 

Hare 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year 194S 

ary

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

Mar.

346 

288 

225 

204 

220

282 

204 

74 

56 

39

31 

28 

29 

239 

313

294 

458 

1,280 

1,160 

1,040

900 

848 

786 

663 

593

365 

319 

235 

180 

209 

288

Apr.

808 

1,640 

2,070 

2,670 

3,460

4,280 

4,650 

4,750 

5,050 

5,450

5,480 

5,520 

5,500 

5,120 

5,100

5,280 

5,280 

5,300 

5,250 

5,350

5,730 

5,500 

5,250 

5,200 

4,750

4,220 

3,800 

3,460 

3,090 

2,670

Secondfoot -days

3,882 

1,573 

1,861

394,687

4,486 

4,148 

12,196 

131,678 

123,210 

104,430 

53,356 

27,125 

17,203

485,148

May

2,460 

2,300 

1,960 

1,890 

2,030

2,160 

2,220 

2,260 

2,360 

2,460

2,670 

2,500 

2,800 

3,270 

3,750

4,050 

4,300 

4,380 

3,920 

4,050

4,180 

4,350 

5,000 

5,970 

6,460

6,460 

6,510 

6,540 

6,640 

6,640 

6,670

Maximum

365 

307 

115

5,710

400 

415 

1,280 

5,730 

6,670 

6,720 

4,080 

978 

786

6,720

June

6,720 

6,720 

6,720 

6,690 

6,560

5,730 

4,850 

4,220 

4,200 

4,220

4,200 

3,510 

2,240 

2,260 

2,280

2,180 

1,890 

1,910 

1,850 

1,780

1,910 

2,590 

2,540 

1,910 

1,700

1,700 

2,160 

2,650 

2,980 

3,560

July

3,920 

4,080 

3,780 

3,420 

3,070

2,800 

2,650 

2,200 

1,980 

1,770

1,400 

1,180 

1,260 

1,200 

1,200

1,180 

1,160 

1,150 

1,120 

1,070

1,080 

1,110 

1,130 

1,150 

1,130

1,130 

1,070 

1,000 

1,010 

989 

967

Minimum

53 

18 

14

14

60 

33 

28 

808 

1,890 

1,700 

967 

786 

473

14

Aug.

944 

911 

879 

858 

868

827 

817 

827 

838 

807

827 

838 

827 

827 

848

978 

922 

911 

911 

933

944 

922 

900 

933 

900

889 

889 

868 

848 

848 

786

Mean

125 

52.4 

60.0

1,081

145 

148 

393 

4,389 

3,975 

3,481 

1,721 

875 

573

1,329

Sept.

786 

786 

767 

738 

728

663

610 

637 

593 

560

560 

585 

593 

519 

511

511 

489 

511 

473 

473

544 

527 

511 

504 

519

504 

535 

504 

489 

473

Runoff In 

acre -feet

7,700 

3,120 

3,690

782,800

8,900 

8,230 

24, 190 

261, 200 

244, 400 

207,100 

105, 800 

53, 800 

34,120

962,200

a No gage-height record; discharge computed on basis of weather records and records for Moore Creek 

near Arrowrook and other Boise River stations.
BOISE RIVER BASIN 143

Diversions from Boise River between Boise and Notus gaging stations, Idaho

Between Boise and Notus gaging stations, 21 principal canals and several small 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 Survery. Records of daily diversion for each canal during irrigation seasons from 1916 to 1950 on file in office of Idaho State Reclamation Engineer.

Records show summation of discharge for these diversions. Staff gages on diversions 

read daily or several times weekly, and discharge measurements made frequently. Field 

data obtained and records summarized under direction of E. B. Karn, watermaster for Boise 

River. Records fair.

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

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Tb

Nov. Dec.

Month

Jan. Feb.

lendar year

e period. ...............................

Mar. Apr.

0 

0 

40 

78 

138

144 

144 

192 

200 

256

256 

337 

374 

304 

370

477 

793 

865 

901 

1,020

1,140 

1,230 

1,360 

1,590 

1,680

1,790 

1,850 

1,890 

1,970 

1,990

Secondfoot-days

23,379 

66,560 

63,820 

67,480 

54,860 

41,060

-

May

1,970 

1,940 

1,870 

1,820 

1,800

1,830 

1,850 

1,890 

1,930 

1,970

2,010 

2,070 

2,130 

2,140 

2,150

2,180 

2,200 

2,220 

2,260 

2,260

2,260 

2,270 

2,280 

2,350 

2,360

2,420 

2,430 

2,450 

2,430 

2,420 

2,400

Maximum

1,990 

2,450 

2,420 

2,360 

1,990 

1,630

-

June

2,390 

2,420 

2,400 

2,400 

2,400

2,310 

2,230 

2,150 

2,090 

2,130

2,090 

2,060 

1,960 

1,920 

1,920

1,950 

1,880 

1,950 

2,020 

2,020

2,040 

2,120 

2,130 

2,120 

2,110

1,820 

2,130 

2,190 

2,210 

2,260

July

2,270 

2,290 

2,340 

2,360 

2,340

2,350 

2,330 

2,280 

2,350 

2,320

2,250 

2,090

2,180 

2,140 

2,130

2,120 

2,130 

2,100 

2,100 

2,070

2,010 

2,040 

2,090 

2,170 

2,150

2,180 

2,180 

2,020 

2,060 

2,030 

2,010

Minimum

0 

1,800 

1,820 

2,010 

1,640 

1,120

-

Aug.

1,990 

1,940 

1,900 

1,910 

1,890

1,790 

1,760 

1,730 

1,720 

1,710

1,720 

1,740 

1,710 

1,680 

1,640

1,650 

1,740 

1,740 

1,700 

1,690

1,760 

1,810 

1,810 

1,820 

1,790

1,770 

1,780 

1,760 

1,760 

1,760 

1,690

Mean

779 

2,147 

2,127 

2,177 

1,770 

1,369

-

Sept.

1,630 

1,630 

1,630 

1,610 

1,580

1,540 

1,490 

1,490 

1,520 

1,430

1,400 

1,390 

1,380 

1,350 

1,340

1,340 

1,340 

1,310 

1,280 

1,260

1,280 

1,270 

1,270 

1,240 

1,220

1,220 

1,170 

1,190 

1,140 

1,120

Runoff In 

acre-feet

46,370 

132,000 

126,600 

133,800 

108,800 

81,440

629,000
144 BOISE RIVER BASIN

Boise River at Notus, Idaho

Location. --Water-stage recorder, lat. 43°43 I , long. 116°48', in SEij sec. 34, T. 5 N., R.

 4 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 1929 to September 1950.

Average discharge.--28 years (1920-22, 1924-50), 1,086 second-feet.

Extremes.--Maximum discharge during year, 6,150 second-feet Apr. 13 (gage height, 6.94

 feet); minimum, 17 second-feet Sept. 2, 3 (gage height, 0.64 foot); minimum daily, 20 

second-feet Sept. 3.

1920-50: 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. Station is below all large diversions for irrigation in Boise

 Valley; many diversions above station. Flow regulated by Arrowrock Reservoir (seep. 139 ) 

and Anderson Ranch Reservoir (see p. 147).

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

Day

1 

2 

3

4 

5

e

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

164 

160 

170 

170 

246

301 

290 

293 

317 

355

381 

377 

386 

415 

718

732 

755 

740 

725 

718

725 

740 

740 

725 

718

718 

710 

702 

695 

673 

666

Nov.

666 

666 

652 

645 

638

610 

597 

680 

659 

645

610 

578 

571 

564 

838

688 

638 

617 

597 

552

552 

545 

564 

590 

558

558 

552 

539 

527 

527

Dec.

638 

552 

521 

503 

503

497 

497 

491 

491 

485

468 

474 

485 

509 

515

539 

558 

558 

558 

533

521 

533 

552 

578 

558

515 

539 

545 

552 

539 

527

Jan.

515 

515 

458 

474 

463

491 

509 

527 

527 

527

527 

515 

497 

503 

463

458 

515 

491 

527 

533

617 

1,150 

1,790 

1,140 

822

718 

680 

710 

631 

604 

521

Feb.

521 

485 

480 

503 

584

1,490 

1,650 

862 

762 

718

762 

695 

564 

564 

564

552 

545 

533 

527 

521

503 

509 

515 

539 

617

770 

878 

870

Month

Oc to 

Move 

Deoe

Ca

janu 

Febr 

Marc 

Aprl

Mfl v

June 

July 

Augu 

Sept

Wa

lendar year 1949 .......... .

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

Mar.

838 

792 

762 

710 

688

710 

740 

638 

578 

558

533 

503 

485 

485 

666

710 

822 

,420 

,940 

,810

,600 

,460 

,400 

,360 

,340

1,080 

936 

854 

770 

695 

725

Apr.

862 

1,710 

2,300 

2,860 

3,500

4,220 

4,740 

4,920 

5,110 

5,680

5,940 

5,870 

5,920 

5,580 

5,190

5,440 

5,360 

5,060 

5,300 

4,920

5,210 

5,080 

4,560 

4,520 

3,970

3,330 

2,740 

2,410 

1,990 

1,580

Secondfoot-days

16,225 

18,223 

16,334

344,721

19,418 

19,083 

28,608 

125,872 

86,820 

82,498 

21,622 

5,966 

7,866

448,535

May

1,480 

1,730 

1,540 

1,250 

1,330

1,640 

1,790 

1,760 

1,680 

1,590

1,490 

1,420 

1,320 

1,650 

2,170

2,460 

2,740 

3,030 

2,760 

2,680

2,820 

2,970 

3,120 

3,970 

4,980

4,960 

5,060 

5,210 

5,400 

5,380 

5,440

Maximum

755 

838 

638

5,580

1,790 

1,650 

1,940 

5,940 

5,440 

5,520 

2,820 

617 

571

5,940

June

5,460 

5,420 

5,400 

5,480 

5,520

4,960 

4,630 

4,200 

3,870 

2,720

3,730 

3,850 

2,320 

2,000 

1,880

1,820 

1,470 

1,250 

1,140 

986

862 

1,150 

1,710 

1,360 

1,120

1,070 

1,000 

1,380 

1,640 

2,100

July

2,510 

2,820 

2,760 

2,320 

2,010

1,540 

1,330 

1,130 

770 

718

590

441 

325 

267 

229

207 

195 

147 

120 

74

66 

66 

68 

48 

35

41 

88 

87 

124 

214 

282

Minimum

160 

527 

468

23

458 

480 

485 

862 

1,250 

862 

35 

63 

20

20

Aug.

217 

129 

90 

124 

309

552

617 

527 

441 

346

301 

240 

204 

144 

76

81 

97 

114 

81

74

97 

164 

87 

92 

175

131 

109 

112 

99 

73 

63

Mean

523 

607 

527

944

626 

682 

923 

4,196 

2,801 

2,750 

697 

192 

262

1,229

Sept.

41 

28 

20 

48 

105

129 

96 

52 

64 

298

317 

321 

341 

333 

333

333 

321 

305 

275 

297

305 

313 

333 

350 

333

333 

372 

425 

474 

571

Runoff In 

acre-feet

32,180 

36,140 

32,400

683,700

38,520 

37,850 

56,740 

249,700 

172,200 

163,600 

42,890 

11,830 

15,600

889,600
BOISE RIVER BASIN

Middle Fork Boise River near Twin Springs, Idaho

Location.--Water-stage recorder, lat. 43°42'45", long. 115 0 37'50", in sec. 4, T. 4 N., R. 

7 E., 1,000 feet upstream from confluence with North Fork Boise River, 1,000 feet upstream from Troutdale ranger station, and 4| miles northeast of Twin Springs. Datum 

of gage is 3,481.30 feet above mean sea level (unadjusted).

Records available.--October 1946 to September 1950 (discontinued).

Extremes.--Maximum discharge during year, 3,240 second-feet July 2 (gage height, 6.38 

feet); minimum, 113 second-feet Jan. 13 (gage height, 1.47 feet).

1946-50: Maximum discharge, 4,370 second-feet May 29, 194S; maximum gage height, 

about 11.0 feet Feb. 10, 1349 (result of snowslide); minimum discharge, 65 second-feet 

Feb. 6, 1949 (gage height, 1.12 feet), result of snowslide upstream.

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

which are fair. No diversion or regulation above station.

Rating table, water year 1949-50, except period of Ice effect

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

(Shifting-control method used Aug. 6 to Sept. 30)

1.6 134 2.6 441 4.6

1.9 200 3.2 710 5.4

2.2 287 3.8 1,050 6.2

1,600

2,260

3,040

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct

178

176

172

172

213

205

205

200

200

P18

205

210

210

203

198

198

195

193

190

190

188

186

186

183

186

183

181

183

205

190

183

Nov.

181

178

176

174

172

172

169

183

213

221

200

198

195

198

190

190

188

188

183

178

174

174

210

384

352

287

301

561

4E5

364

-

Dec

308

290

252

226

258

232

223

218

213

181

146

*158

238

188

181

221

213

210

205

183

193

205

205

205

178

198

203

190

178

205

181

Jan

176

183

161

136

148

205

208

195

188

186

188

181

b!75

b!60

148

156

200

200

190

229

349

462

433

360

287

252

268

255

232

210

193

Feb

183

174

165

284

258

238

230

220

*218

208

210

198

198

203

205

213

223

£32

243

255

246

238

240

268

376

470

513

513

_

_

-

11 . i_ Second 

Month foot-days

October ... ......... ... 5,985

November .......... ......... 6,979

December .... ... ...... . . 6,485

Calendar year 1949 ..... . 215,044

January ... ...... ... ..... 6,914

February . . ....... . . ...... 7,222

March . ... ........ ... 11,771

April ...... ....... . . 31,110

May ... ....... .... .......... 52,680

June ... ............ . . .... 70,610

July ... ......... . . ....... 39,971

August ... ....... . . . 11,392

September . ......... . . . . 7,961

Water year 1949-50 ..... .... 259,080

Mar.

458

416

392

368

420

517

462

425

384

352

322

298

281

281

271

271

396

561

487

433

404

404

388

376

384

360

352

333

308

315

352

Maximum

218

561

308

3,180

462

513

561

1,790

2,740

3,040

2,870

557

400

3,040

Apr

479

710

675

592

584

642

766

894

854

842

848

972

1,120

1,210

1,090

1,130

1,330

1,380

1,320

1,360

1,640

1,790

1,560

1,290

1,130

1,070

1,070

996

918

848

-

May

1:

 

894

870

810

776

745

700

670

670

670

695

820

,070

,440

,930

2,280

2,350

2

1

,430

,410

,990

1,740

1,760 'L

I

I

,160

,700

,740

2,460

^

,300

,400

,590

,550

,510

2,550

Minimum

17g

169

146

128

13S

165

271

479

670

1,720

513

252

230

136

June

2,t 2 '

2,4

2,'

00

20

80

50

2,670

2,800 2,'

2,:

1»£

20

70

00

1,720

1,790

2,C

1,-

2,C

30

80

40

2,190

2,320

2

2,^

2,E

60

60

>90

2,750

2,960

3,C 2,'

2,'

)40

80

10

1,810

1,660 1,-

2,]

2,« 2,"

Mean

193

233

209

589

223

258

380

1,037

1,699

2,354

1,289

367

265

710

Peak discharge (base, 1,900 sec. -ft, ) . Apr. 22 (3 a.m.) 1,920 sec. -ft

90

00

160

60

1950

July

2,870 2,"

2,4

2,:

80

40

10

2,130

2,100

2,C

1,£

1,£

40

40

90

1,640

1,500

1.2 1.'

1,1

30

20

70

1,130

1,070

c

c

£

84

30

82

837

782 "

"

t

45

15

95

665

642

£

i

i

c

15

97

70

39

513

Per

square 

mile

0.505

.610

.547

1.54

.584

.675

.995

2.71

4.45

6.16

3.37

.961

.694

1.86

Aug.

492

4

4

4

70

66

70

522

557

4

4

4

75

45

29

416

408

4

2

2

16

84

72

356

345

2

2

37

30

15

308

301

2

2

2

98

98

94

287

281

^

 z

1

i

71

71

65

61

252

Sept

243

238

235

235

230

230

230

240

360

400

310

290

280

260

260

255

250

270

260

260

250

250

250

245

240

275

305

275

265

270

-

Runoff

Inches

0.58

.68

.63

20.94

.67

.70

1.15

3.03

5.13

6.87

3.89

1.11

.78

25.22

j May 18 (2 a.m.

Acre-feet

11,870

13,840

12,860

426,500

13,710

14,320

23,350

61,710

104 , 500

140,100

79,280

22,600

15,790

513,900

) 2,620

3,240 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Feb. 7, 8, Sept. 3-30; discharge computed on basis 

in stage, weather records, records for other Boise River stations, and inflow int 

Anderson Ranch Reservoirs.

of recorded range 

;o Arrowrock and
146 BOISE RIVER BASIN

South Fork 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. Altitude of gage about 4,220 feet, from topographic map of Bureau of Reclamation.

Drainage area.--635 square miles.

Records available. April 1945 to September 1950.

Extremes. Maximum discharge during year, 4,520 second-feet May 24 (gage height, 6.61 

FeeTT; minimum, 58 second-feet Jan. 14 (gage height, 1.01 feet), result of snowslide 

upstream.

1945-50: Maximum discharge, 4,750 second-feet May 29, 1948 (gage height, 6.87 feet); 

minimum, 30 second-feet Feb. 10, 1949 (gage height, 0.60 foot), result of snowslide upstream.

Remarks. Records excellent except those for periods of ice effect or no gage-height recora, which are fair. Small ranch diversions above station. No regulation.

Discharge, in seccnd-feet, water year October 1949 to September 1951

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

198 

198 

195 

189 ZZ~I

248 

231 

227 

224 

238

231 

231 

227 

221 

217

217 

214 

210 

207 

E07

2O7 

204 

204 

201 

201

201 

201 

2O4 

221 

210 

201

Nov.

198 

198 

198 

198 

195

192 

192 

204 

252 

256

2E7 

221 

214 

214 

210

210 

210 

2O4 

195 

189

183 

172 

E63 

49O 

372

290 

303 

516 

377 

328

Dec.

274 

274 

227 

177 

245

238 

*214 

231 

207 

172

138 

133 

192 

201 

164

E07 

221 

214 

2O7 

b!70

174 

210 

227 

227

198

192 

214 

201 

169 

192 

192

Jan.

167 

186 

b!7O 

154 

b!45

186 

214 

221 

214 

207

214 

207 

201 

177 

151

ISO 

2E4 

224 

210 

E45

332

396 

396 

328 

271

238 

227 

234 

238 

224 

b215

Month

Ootc 

Move 

Dece

Ca

Jann 

Febr 

Hare 

Apri 

Bay 

June 

Julj 

Augti 

Sept

Wa

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

lendar year 1949 .........

ary .....

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

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

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

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

Feb.

*b210 

b210 

b210 

231 

248

263 

238 

231 

231 

2E1

221 

207 

204 

221 

224

224 

224 

210 

201 

217

214 

201 

2E1 

241 

286

298 

307 

298

Seccndfcct-days

6,61E 

7,471 

6,302

248,375

6,996 

6,512 

9,181 

41,900 

86,5EO 

95,660 

39,065 

11,372 

9,030

326,621

Mar.

286 

294 

298 

298 

332

368 

328 

323 

323 

307

274 

267 

248 

267 

286

271 

315 

319 

319 

290

294 

E98 

278 

*303 

307

298 

280 

275 

260 

275 

300

Maximum

248 

490 

274

3,780

396 

307 

368 

2,700 

4,300 

4,180 

2,810 

598 

560

4,300

Apr.

40O 

550 

490 

450 

430

450 

530 

700 

720 

760

8 SO 

1,100 

1,400 

1,600 

1.60O

1,800 

2.1OO 

2,300 

2,20O 

2,400

2.70O 

2,600 

2,20O 

1,800 

1,720

1,720 

1,750 

1,65O 

1,520 

1,410

May

1,470 

1,410 

1,310 

1,260 

1,200

1,140 

1,090 

1,140 

1,2OO 

1,320

1,650 

2,11O 

2,710 

3,420 

3,92O

3,940 

3,950 

3,98O 

3,330 

3,010

3,080 

3,69O 

4,3OO 

4,29O 

3,820

3,480 

3,560 

3,860 

3,810 

4,010 

4,060

Minimum

189 

172 

133

94

145 

201 

248 

400 

1,090 

2,100 

516 

252 

224

133

June

4,000 

4,130 

3,770 

3,650 

3,89O

4,170 

4, ISO 

3,540 

2,970 

2,760

2,760 

2,920 

2,860 

2,890 

2,96O

3,O50 

3,400 

3,360 

3,350 

3,510

3,560 

3,68O 

3,310 

2,760 

2,270

2,100 

2,150 

2,340 

2,600 

2,770

Mean

213 

249 

203

680

226 

233 

296 

1,397 

2,791 

3,189 

1,260 

367 

301

895

J.uly

2,810 

2,72O 

2,470 

2,320 

2,170

2,O60 

1,940 

1,760 

1,620 

1,610

1,520 

1,340 

1,220 

1,150 

1,O7O

1,010 

947 

884 

844 

805

753 

722 

692 

662 

620

598 

582 

570 

548 

532 

516

Per 

square 

mile

0.335 

.392 

.320

1.07

.356 

.367 

.466 

2.20 

4.40 

5.02 

1.98 

.578 

.474

1.41

Aug.

485 

465 

45O 

455 

554

598 

505 

460 

435 

425

410 

420 

396 

377 

359

341 

323 

319 

307 

294

29O 

286 

286 

282 

278

278 

263 

263 

260 

256 

252

Sept.

245 

238 

234 

234 

227

224

227 

248 

560 

470

382 

341 

319 

307 

298

298 

307 

323 

307 

311

298 

286 

294 

286 

278

290 

311 

294 

290 

303

Runoff

Inches

0.39 

.44 

.37

14.57

.41 

.38 

.54 

2.45 

5.07 

5.60 

2.29 

.67 

.53

19.14

Acre-feet

13,110 

14,820 

12,500

492,700

13,880 

12,920 

18,210 

83,110 

171,600 

189,700 

77,480 

22,560 

17,910

647,800

Peak discharge (base, 2,000 sec. -ft. ) .--Apr. ZZ (time unknown) 2,920 sec. -ft. j May 18 (5 a.m.)

4,<;yo sec.-ft.; May 

3,000 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Mar. 27 to Apr. 24; discharge computed on basis of weather records, 

records for nearby streams, and computed inflow to Arrowrock and Anderson Ranch Reservoirs.
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 S., R. 8 E.,

 on 'inlet structure of outlet works of dam on South Pork Boise River, \\ miles downstream 

from Camas Creek and 3 miles northwest of Bennett (Dixie Store). Datum of gage is at 

mean sea level (surveys by Bureau of Reclamation).

Drainage area. 980 square miles.

"ecords available. December 1945 to September 1950.

Extremes.--Maximum contents observed during year, 315,100 acre-feet July 11-13 (elevation, 

4,lt>U.2 feet); minimum observed, 12,810 acre-feet Oct. 1 (elevation, 4,010.0 feet).

1945-50: Maximum contents observed, that of July 11-13, 1950; no usable contents 

prior to Jan. 27, 1946.

Remarks. Reservoir is formed by earth-fill dam. Storage began Dec. 15. 1945. Usable

 consents, 464,200 acre-feet between elevations 3,992 and 4,196 feet [top of spillway 

gates). Elevation of spillway crest, 4,174 feet, and top of dam, 4,206 feet. Dead 

storage below 3,992 feet is 28,980 acre-feet. Figures given herein represent usable 

contents. Water is used for irrigation of lands in Boise Valley. Gage read once daily 

about 4:30 p.m. Oct. 1 to May 21 and about 8 a.m. May 22 to Sept. 30.

'^operation. Gage readings and capacity table furnished by Bureau of Reclamation. 

Contents, in acre-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

12,810

-

13,860

14,350

14,840

15,590

16,180

16,680

-

17,970

18,570

19,190

19,800

£0,340

20,870

_

22,050

22,600

23,150

23,710

24,180

24, 740

_

25,780

26,360

26,930

27,420

28,000

28,490

-

29,580

Nov.

30,170

30,670

31,180

31,680

32,190

_

33,220

33, 740

34,460

35,200

35,830

36,460

-

37,640

38,280

38,830

39,370

39,920

40,470

-

41,460

41,910

42,580

-

44,950

45,760

-

47,730

48,660

49,490

-

Dec.

50,320

51,040

51,640

_

52,720

53,330

53,820

54,430

55,050

-

_

56,170

56,550

57,180

57,570

58,210

-

_

60,020

60,420

60,940

61,480

62,140

-

-

_

64,300

64,990

65,400

65,960

a66,350

Jan.

_

-

67,490

68,200

68,200

69,050

_

_

70,920

71,350

71,790

72,520

-

-

-

74,440

75,040

75,640

76,390

77,000

_

_

80,220

81,160

82,100

82,740

83,370

_

_

85,450

85,940

Feb.

86,590

86,590

86,590

.

-

89,710

90,370

91,040

91,720

92,390

.

_

94,270

94,790

95,480

96,000

96,700

_

_

98,290

98,820

.

100,100

100,800

-

.

103,500

104,300

-

_

-

Mar.

105,200

106,100

107,200

.

-

110,100

110,900

111,800

112,800

113,800

_

_

115,900

116,900

117,700

118,300

119,500

_

_

122,800

123,700

124,700

125,600

126,400

-

.

129,900

130,800

131,400

132,100

133,000

Apr.

.

_

137,200

139,100

140, 700

142,100

143,700

_

.

151,100

153,800

156,800

160,800

165,300

169,900

_

180,700

187,400

193,900

200,600

208,800

217,400

226,000

232,400

237,900

243,200

248,900

254,400

259,000

262,900

-

May

268,300

272,300

274,300

271,600

268,900

265,900

263,300

260,300

255,400

250,500

244,500

240,400

239,100

239,800

242,300

244,500

245,100

246,400

245,800

244,200

242,300

241,600

242,300

243,900

245,100

244,800

244,200

243,900

243,900

243,90.0

244, ?00

June

244,200

244,200

244,200

243,200

242 , 300

241,6t>0

241,600

240,700

238,800

235,400

231,700

228,400

231,100

233,600

236,400

239,100

244,500

250,500

256,400

263,300

270,300

278,100

285,600

292,200

297,500

302,500

301,800

302,500

303,600

305,300

-

July

307,100

308,900

310,400

311,500

312,200

312,500

312,500

313,300

314,000

314,400

315,100

315,100

315,100

314,700

314,400

314,000

313,300

313,600

314,000

314,400

310,700

306,800

302,500

298,200

289,400

280,800

271,900

263,300

256,000

249,900

242,600

Aug.

236,000

236,400

237,600

238,500

239,800

241,000

242,300

243,500

244,500

245,400

246,700

247,700

248,600

249,600

250,500

251,200

251,800

252,500

253,100

253,800

254,400

255,100

255,700

256,400

257,000

257,700

258,300

259,000

259,600

260,000

260,600

Sept.

261,300

261,600

262,300

262,900

263,300

263,600

263,900

264,300

264,900

266,900

267,900

268,600

269,300

270,300

270,900

271,600

272,300

272,600

273,300

274,000

274,700

275,300

276,000

276,700

277,400

278,100

277,700

274,300

270,600

266,900

-

Monthly elevation and contents, water year October 1949 to September 1950

Date

Calendar year 1949..

Feb. 28...............

Water year 1949-50..

Elevation 

(feet)t

-

-

Contents 

(acre-feet)

-

-

Change In contents 

during month 

(acre -feet)

+2,180

+19 590

+254,570

t Elevation about 4:30 p.m. Sept. 30 to Apr. 30 and about 8 a.m. May 31 

to Sept. 30.

a No gage reading; contents interpolated.

Note. Ice at gage may have affected gage readings Jan. 3 to Feb. 3.
148 BOISE RIVER BASIN 

South Fork Boise River at Anderson Ranch Dam, Idaho

L£cation--Water-stage recorder, lat. 43°20', long. 115°29', In 3w£ sec. 11, T. 1 3., R. 

b E., 600 feet upstream from Dixie Creek, li miles downstream from Anderson Ranch Reservoir, and 2-f miles northwest of Bennett (Dixie store). Altitude of gage, about 3,850 

feet (from topographic map of Bureau of Reclamation).

Drainage area.--982 square miles.

Records available.--April 1943 to September 1950 (include flow of Dixie Creek prior to 

UctoDer J.946 and exclude Dixie Creek thereafter) .

Extremes. Maximum discharge during year, 5,190 second-feet July 24 (gage height, 7.68 

reet); minimum, 0.3 second-foot Feb. 16 (gage height, 0.99 foot), but may have been 

less during period of ice effect.

1943-50: Maximum discharge, 9,100 second-feet Apr. 17, 1943 (gage height, 10.06 

feet); minimum, that of Feb. 16, 1950, but may have been less daring period of ice 

effect.

Remarks.--Records excellent except those below 10 second-feet, which are poor. Some water 

 stored in Little Camas Reservoir and diverted for irrigation of about 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.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

2.2 

2.2 

2.2 

£ . 2 

2.8

2.5 

2.5 

2.2 

2.2 

2.2

2.0

2.0 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

2.0 

1.5

1.5 

1.5 

1.5 

1.2 

1.5

1.2 

1.5 

1.8 

2.0 

1.8 

1.5

Nov.

1.8 

1.5 

1.5 

1.5 

1.5

1.2 

1.2 

2.0

2.2

1.8 

1.5 

1.2 

1.5 

1.5

1.5 

1.2 

1.5 

1.8 

1.8

1.5 

1.5

2.8 

2.Z 

1.8

1.5 

1.5 

2.0 

1.8

1.8

Dec.

1.8 

1.8 

1.8 

2.0 

2.0

1.8 

*1.5 

1.5

. 1.2

1.2 

.9

.9

.8 

.8 

.8 

.8 

.8

Jan.

0.8 

.8

.8

1.0 

1.5 

2.0

10 

5.8 

3.0 

2.0 

1.0

1.0 

.9 

1.0 

.9 

1.0 

*1.0

Feb.

0.9 

.9 

.9 

.9 

3.0

4.0 

3.0 

2.0 

1.5 

1.0

.9 

.8 

1.0 

1.0 

1.2

1.0 

1.2 

1.0 

1.0

1.2

'.9 

1.5 

3.0 

2.8

2.2 

2.2 

1.8

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

1.5 

1.2 

3.0 

2.0 

2.2

3.2 

3.0 

2.0 

1.8 

1.8

1.7 

1.6 

1.5 

2.0 

2.5

2.2 

6.6 

4.4 

4.8 

4.8

4.8 

4.4 

3.2 

*5.3 

5.3

4.0 

4.4 

3.5 

3.5 

3.5 

3.2

Apr.

7.1 

6.2 

5.8 

4.8 

6.2

7.6 

7.1 

5.8 

5.8

6.6

5.8 

6.2 

6.2 

8.0 

9.2

9.2 

9.8 

9.2 

8.6 

8.6

6.0 

8.6 

7.1 

4.4 

8.6

9.2 

4.4 

3.5 

3.5 

3.2

Secondfoot-days

58.5 

50.9 

39.2

323,649.9

45.7 

44.0 

98.9 

204.3 

128,587.5 

80,239 

78,930 

1,941.7 

8,435.7

298,675.4

May

4.0 

3.5 

1,900 

3,190 

3,290

3,070 

3,050 

3,590 

4,170 

4,670

4,960 

4,530 

4,190 

4,190 

4,200

4,680 

5,000 

5,000 

5,000 

5,000

4,990 

4,990 

4,990 

4,990 

5,020

5,000 

5,000 

5,000 

4,920 

5,000 

5,000

Maximum

2.8 

2.8 

2.0

3,900

10 

4.0 

6.6 

9.8 

5,020 

5,050 

5,140 

1,840 

2,160

5,140

June

5,020 

5,030 

5,030 

5,050 

5,030

5,030 

5,050 

5,030 

5,020 

5,020

5,020 

3,080 

2,010 

2,020 

2,020

1,340 

859 

859 

531 

255

251 

251 

251 

251 

251

1,490 

2,500 

2,230 

2,230 

2,230

July

2,240 

2,240 

2,240 

2,240 

2,250

2,250 

2,030 

,520 

,520 

,530

,530 

,540 

,540 

,540 

,540

,550 

,080 

715 

715 

,150

,970 

,970 

,970 

,060 

,140

,120 

,100 

,670 

,000 

3,990 

3,980

Minimum

1.2 

1.2 

.8

-

.8 

1.2 

3.2 

3.5 

251 

715 

2.0 

.7

-

Aug.

1,840 

12 

8.0 

6.6 

6.2

5.3 

4.0 

3.5 

3.2 

3.0

2.8 

2.8 

2.5 

2.5 

4.8

2.5 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.0 

2.0 

2.0 

2.2 

2.0 

2.0

Mean

1.89 

1.70 

1.26

887

1.47 

1.57 

3.19 

6.81 

4,148 

2,675 

2,546 

62.6 

281

818

Sept.

2.0 

2.0 

4.8 

6.2

7.6

5.3 

6.6 

7.6 

9.8 

4.8

4.0 

3.2 

3.0 

3.0 

2.8

2.8 

2.2 

.9 

.8 

.8

.7

.7 

.7 

.7 

.9

1.8 

1,900 

2,160 

2,150 

2,140

Runoff in 

acre-feet

116

101 

78

642,000

91 

87 

196 

405 

255,000 

159,200 

156,600 

3,850 

16,730

592,500

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 9-23, Jan. 3-21, 24-26, Jan. 30 to Feb. 10, 

FebTT3-15, 18, 19, Mar. 1, 2, 7-12, 14.
BOISE RIVER BASIN 149

Lime Creek near Bennett, Idaho

location.--Water-stage recorder, lat. 43°25', long. 115°16', in SW^NE^ sec. 16, T. IN., 

K. 1U E. , 0.4 mile upstream from flow line of Anderson Ranrh Reservoir, 2 miles upstream from mouth, and 12 miles northeast of Bennett. Altitude of gage, about 4,250 

feet (from topographic map of Bureau of Reclamation).

Drainage area.--131 square mile?.

Records available.--June 1945 to September 1950.

Extremes.--Maximum discharge during year, 758 second-feet Apr. 21 (gage height, 4.99 feet); 

minimum, 5.0 second-feet Jan. 14 (gage height, 1.99 feet), result of snowslide upstream,

1945-50: Maximum discharge, 1,180 second-feet Apr. 19, 1946; maximum gage height, 

8.02 feet Feb. 15, 1949 (snowslide downstream); minimum, 2.5 second-feet Feb. 11, 1949 

(gage height, 1.67 feet), result of snowslide upstream.

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

wnicn are fair. No diversion or regulation.

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

Oay

1

2

3

4

5

6

7

8

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

19

19

19

30

27

27

27

27

30

28

30

29

29

27

27

26

26

26

28

28

28

28

28

28

28

28

28

30

29

28

Nov.

25

26

26

26

26

26

27

30

41

39

33

33

29

32

30

32

31

28

27

26

24

25

51

86

52

43

43

64

45

44

-

Dec.

34

39

21

24

40

31

*31

33

29

21

18

18

27

29

28

29

32

33

31

25

25

31

34

33

30

29

32

28

25

28

28

Jan.

25

27

26

23

23

27

32

33

32

31

33

33

33

24

28

30

33

34

33

40

62

80

97

71

60

50

48

50

50

46

46

Month

""tobsr .......................

"ovember ......................

"ooember ......................

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

"anuary .......................

"ebruary ......................

"arch .........................

' pril .........................

 My .........................:.

"une ..........................

"uly ..........................

'ngust ........................

'"nptember .....................

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

Feb.

45

45

*45

48

50

55

50

46

43

40

40

39

38

40

40

39

39

36

38

38

37

38

40

43

53

54

58

55

_

_

-

Secondfoot-days

831

1,070

896

27,022.3

1,260

1 232

l|838

9,601

12,237

6,064

1,618

899

764

38,310

Mar.

52

54

54

55

64

73

64

63

58

55

53

40

50

52

48

48

68

78

73

66

63

63

*60

63

64

60

60

59

54

58

66

Maximum

3C

86

4C

43 e

97

56

7£

618

565

39'

86

46

74

618

Apr.

95

129

113

104

99

102

125

162

166

178

194

258

327

366

369

410

482

528

517

546

618

606

492

419

403

403

397

357

336

302

-

May

324

302

268

252

247

234

239

232

242

263

296

360

426

482

565

542

550

531

465

432

455

465

517

531

479

442

426

435

419

416

410

Minimum

19

24

18

3 " 2

23

36

40

95

229

89

32

18

16

16

June

394

384

351

333

324

319

310

274

245

222

209

204

197

187

182

180

175

166

157

150

142

133

125

119

111

102

95

94

91

89

-

Mean

26.8

35.7

28.9

74.0

40.6

44.0

320' 59 3

395

202

52.2

29.0

25.5

105

July

86

83

80

77

75

70

67

66

63

67

67

57

54

52

48

47

46

44

45

42

41

39

38

36

34

33

33

33

32

33

32

Per

square 

mile

0.205

.273

.221

.565

.310

.336

. 453

2.44

3.02

1.54

.398

.221

.195

.802

Aug.

31

29

31

34

46

48

39

35

33

32

31

33

32

30

29

28

28

27

27

26

25

24

23

25

26

24

22

22

21

20

18

Sept.

18

17

16

16

16

16

16

33

74

43

35

29

26

24

23

23

23

26

25

25

24

23

25

24

24

25

25

24

23

23

-

Runoff

Inches

0.24

.30

.25

7.65

.36

.35

.52

2.73

3.47

1.72

.46

.26

.22

10.88

Acre-feet

1,650

2,120

1,780

53,600

2,500

2,440

3,650

19,040

24,270

12,030

3,210

1,780

1,520

75,990

Peak discharge (base, 250 sec, -ft.). Apr. 21 (7 p.m.) 758 sec.-ft.; May 17 (10 p.m.) 610 sec.-ft. 

May Z3 (11 p.mT) 580 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 11-13, 19-22, Dec. 25 to Jan. 9, Jan. 16-20, 

Jan. 25 to Feb. 14. No gage-height record Oct. 1-31, Jan. 27 to Feb. 2, Sept. 16-30; discharge computed on basis of weather records and records fop Fall Creek near Anderson Ranch Dam and South Pork 

Boise River.near Featherville.
150 BOISE RIVER BASIN

Fall Creek near Anderson Ranch Dam, Idaho

Drainage area.--55.3 square miles.

Records available.--April 1945 to September 1950.

Extremes.--Maximum discharge during year, 524 second-feet May 15; maximum gage height recorded, 5.48 feet during period Jan. 27 to Feb. 2 (ice jam), but was probably higher 

during same period; minimum discharge, 11 second-feet Dec. 25 (gage height, 2.39 feet). 

1945-50: Maximum discharge, 793 second-feet Apr. 17, 1946; maximum gage height recorded, 6.07 feet Jan. 5, 1947 (ice jam); minimum discharge, 1.6 second-feet Feb. 9, 

1949 (gage height, 1.94 feet), result of snowslide upstream.

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

wnicn are poor. No diversion or regulation.

Rating table, water year 1949-50, except periods of ice effect 

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

2.5

2.6 

£.8 

3.0 

3.3

14

18

28

42

3.6 

3.9

4.2 

4.6 

5.0

113

165

228

332

458

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

15

15

15

15

20

18

18

18

18

20

18

20

18

18

17

17

16

16

16

17

17

17

17

17

17

17

17

17

18

17

17

Nov.

*17

16

16

15

15

15

15

17

20

20

18

18

18

19

19

20

20

20

19

18

18

17

34

56

34

28

30

37

29

27

-

Dec.

24

24

20

b20

21

19

*19

19

18

b!5

b!2

b!2

b!7

bl8

16

16

17

17

16

b!5

b!5

b!7

17

17

b!6

b!6

17

b!6

b!5

17

b!7

Jan.

b!5

b!6

b!6

b!4

b!4

b!6

bl8

b!8

17

17

17

 b!7

16

16

b!4

b!6

17

18

18

22

27

36

37

32

b25

b22

b20

21

21

20

20

Month

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

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

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

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

January

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

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

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

May

Jnne ..........................

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

Angust ........................

September ...........'..........

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

Feb.

19

*b!8

19

21

23

25

23

22

22

21

21

20

19

20

20

20

20

19

18

19

19

18

19

22

25

26

27

25

_

_

-

Secondfoot-days

533

665

535

22,604

613

590

941

6,411

9,310

5,373

1,728

709

559

27,967

Mar.

24

25

25

24

29

32

29

28

28

26

23

21

27

28

26

26

37

42

39

35

34

*34

34

34

34

33

33

32

b30

31

38

Maximum

20

56

24

353

37

27

42

432

461

284

116

34

38

461

Apr.

60

81

69

64

64

67

78

104

104

123

139

179

224

215

215

276

347

353

335

371

428

432

368

287

256

258

264

237

213

200

May

204

191

179

173

165

156

150

154

159

179

219

281

371

438

461

461

445

425

365

338

350

396

425

399

350

323

320

320

309

309

295

Minimum

15

15

12

10

14

18

21

60

150

119

28

16

15

12

June

284

274

254

242

242

240

233

208

183

171

171

169

163

163

165

167

169

167

171

173

169

165

157

143

131

123

119

119

119

119

Mean

17.2

22.2

17.3

61.9

19.8

21.1

30.4

214

300

179

55.7

22.9

18.6

76.6

July

116

110

102

95

90

83

78

72

68

69

65

58

54

52

49

46

44

42

41

40

38

3£

34

33

32

32

31

30

30

30

28

Per 

square 

mile

0.311

.401

.313

1.12

.358

.382

.550

3.87

5.42

3.24

1.01

.414

.336

1.39

Ang.

27

27

26

28

34

34

28

27

26

25

25

25

24

23

22

22

22

21

20

20

20

20

19

20

20

18

18

18

17

17

16

Sept.

15

15

15

15

15

15

15

17

38

26

21

20

19

18

18

18

18

18

18

19

18

18

20

18

18

20

19

19

18

18

-

Runoff

Inches

0.36

.45

.36

15,21

.41

.40

.63

4.31

6.26

3.61

1.16

.48

.38

18.81

Acre-feet

1,060

1,320

1,060

44,830

1,220

1,170

1,870

12,720

18,470

10,660

3,430

1,410

1,110

55,500

Peak discharge (base, 500 sec.-ft.). Apr. 21 (8 p.m.) 506 sec.-ft.j May 15 (9 p.m.) 524 sec.-ft.j 

May 22 (8:30 p7m.) 472 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Jan. 28 to Feb. 1, Feb. 3 to Mar. 21; discharge computed on basis of 

weather records and records for South Fork Boise River near Featherville and Lime Creek near Bennett,
BOISE RIVER BASIN 151

Little Camas Canal at heading, near Bennett, Idaho

Location. Staff gage, lat. 43°21'30", long. 115°23', In sec. 9, T. IS., R. 9 E., 400 feet 

downstream from Little Camas Reservoir, 4 miles northeast of Bennett, and 22 miles north 

east of Mountain Home. Datum of gage is 4,926 feet above mean sea level {datum of Mountain Home Irrigation District).

Records available.--June to November 1917, April 1924 to September 1950.

Extremes. Maximum discharge observed during year, 54 second-feet May 29 to June 27; maximum gage height observed, 2.16 feet July 27 to Aug. 12; no flow during long periods.

1917, 1924-50: Maximum discharge observed, 77 second-feet Apr. 27-30, May 1, 3, 9, 

1924; no flow during nonirrigation seasons.

Remarks. Records good. Gage read once daily. Canal diverts from Little Camas Reservoir 

[South 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 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! MA**

June 

July 

Augu 

Sept

Ha

ber. ....................................

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

lendar year 194S

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

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

Mar. Apr.

Secondfoot-days

0 

0 

0

5,020

0 

0 

0 

0 

884 

1,616 

1,514 

1,468 

103

5,585

May

0 

0 

0 

0 

0

0 

0 

0 

0 

3

16 

23 

26 

26 

28

33 

38 

42 

42 

42

45 

50 

51 

51 

51

51 

51 

53 

54 

54 

54

Maximum

0

0 

0

54

0 

0 

0 

0 

54 

54 

52 

49 

44

54

June

54 

54 

54 

54 

54

54 

54 

54 

54 

54

54 

54 

54 

54 

54

54 

54 

54 

54 

54

54 

54 

54 

54 

54

54 

54 

53 

53 

52

Minimum

July

52 

52 

51 

51 

50

50 

50 

50 

50 

50

49 

49 

49 

49 

48

48 

48 

48 

48 

48

47 

47 

47 

47 

46

46 

48 

49 

49 

49 

49

0 

0 

0

0

0 

0 

0 

0 

0 

52 

46 

44 

0

0

Aug.

49 

49 

49 

49 

49

49 

49 

49 

49 

49

49 

48 

48 

48 

48

48 

48 

48 

48 

47

47 

47 

47 

46 

46

45 

44 

44 

44 

44 

44

Mean

0 

0 

0

13.8

0 

0 

0 

0 

28.5 

53.9 

48.8 

47.4 

3.4

15.3

Sept.

44 

44 

15

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

Runoff In 

acre -feet

0 

0 

0

9,960

0 

0 

0 

0 

1,750 

3,210 

3,000 

2,910 

204

11,070
152 BOISE RIVER BASIN

Moore Creek near Arrowrock, Idaho

Location.--Staff gage, lat. 43°35', long. 115°59', in sec. 21, T. 3 H., R. 4 E., 150 feet 

below bridge on Boise-Arrowrock highway, a quarter of a mile upstream from mouth and 

3 miles southwest of Arrowrock. Datum of gage is 2,896.11 feet above mean sea level, 

unadjusted.

Drainage area.--42G square miles.

Records available.--October 1914 to November 1915 (discharge measurements only), December 

1915 to September 1950.

Average discharge.--34 years (1916-50), 294 second-feet.

Extremes.--Maximum discharge observed during year, 1,900 second-feet Apr. 22 (gage height, 

4.U6 feet); minimum observed, 23 second-feet Dec. 12 (gage height, 0.33 foot).

1915-50: Maximum discharge, 6,610 second-feet Apr. 8, 1943 (gage height, 7.1 feet, 

from floodmark); minimum observed, 7.9 second-feet Aug. 13-15, 17, 18, 1924.

Remarks.--Records good. Gage read once daily except Mar. 2 to June 30, when in was 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 1949 to Septembe

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct

49

44

43

42

45

72

75

72

66

88

84

75

66

66

63

60

59

57

57

57

57

57

57

57

57

57

57

57

60

63

63

Nov.

60

60

57

57

59

57

57

60

91

145

117

95

84

84

78

78

75

75

75

72

66

55

72

166

166

141

129

137

129

117

-

Dec.

110

99

91

50

72

72

50

50

60

45

31

23

57

57

60

75

78

84

81

50

57

75

91

88

57

60

81

81

75

75

69

Jan

63

75

50

50

48

66

84

88

84

88

81

78

78

75

69

7E

75

78

57

115

164

239

297

284

194

169

178

123

145

129

99

Month

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

November . . . . .....

December . ....

Calendar year 1949 ......

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

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

March .........

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

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

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

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

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

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

Water year 1949-50 . . ....

Feb

93

86

86

110

141

154

164

156

156

143

143

127

131

135

139

151

151

143

151

164

156

151

164

217

438

525

500

490

_

-

Secondfoot-days

1,88E

2,714

2,104

99,117

3,495

5,365

15,996

39,499

29,532

17,320

4,977

2,090

1,486

126,460

Mar

438

402

420

438

460

540

460

411

369

335

304

248

254

256

242

251

682

1,190

1,020

874

760

724

659

632

632

588

546

522

431

416

492

Maximum

88

166

11C

1,610

297

525

1,190

1,850

1,290

804

327

119

72

1,850

Apr

785

1,120

1,040

957

936

978

1,050

1,150

1,200

1,320

1,290

1,490

1,690

1,620

1,470

1,530

1,690

1,700

1,590

1,620

1,830

1,850

1,660

1,390

1,210

1,160

1,140

1.O8O

1,010

943

-

May

999

1,160

943

876

837

785

740

714

720

720

772

856

1,030

1,200

1,290

1,230

1,220

1,150

1,020

985

915

1,010

1,080

1,050

985

943

902

889

863

837

811

Minimum

42

55

23

23

48

86

242

785

714

327

76

40

36

23

June

804

804

785

772

746

746

804

778

690

648

618

582

546

552

546

540

552

546

534

528

534

522

504

469

437

388

356

331

331

327

Mean

60.7

90.5

67.9

272

113

192

516

1,317

953

577

161

67.4

49.5

346

July

327

312

297

283

312

263

233

222

178

178

178

169

156

135

135

127

123

Aug

76

72

72

76

93

119

1

123

119

119

115

104

102

96

89

89

82

80

76

79

76

Per

square 

mile

0.142

.212

.159

.638

.265

. 451

1^21

3.09

2.24

1.35

.378

!l!6

.812

Ri

Inches

0.16

.24

.18

8.65

.31

.47

1.40

3.45

Z.58

1.51

.43

.13

11.04

11

93

79

76

72

77

93

72

63

Bf

63

63

60

60

58

58

47

50

50

48

47

47

45

44

40

Sept

40

38

36

40

40

36

38

38

45

63

72

58

55

52

50

50

50

52

55

52

53

51

48

48

50

52

55

58

56

55

-

moff

Acre-feet

3,730

5,380

4,170

196,600

6,930

10,640

31,730

78,350

58,580

34,350

9,870

4,150

2,950

250,800
BOISE RIVER BASIN 153

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°35', long. 116°45', in SEij sec. 19, T. 3 N., R. 3 ¥., 

5 miles south and 2 miles west of Caldwell; the other is at upper embankment, lat. 

43°34', long 116°39', in NWij- sec. 36, T. 3 N., R. 3 W., 1 mile south and 4 miles west 

of Nampa. Datum of gage is 2,500.5 feet above mean sea level (surveys of Bureau of 

Reclamation).

Records available. October 1917 to September 1950.

Extremes. Maximum contents observed during year, 176,700 acre-feet May 12 (gage height,

 yy.9'b feet); minimum observed, 22,550 acre-feet Oct. 1.

1917-50: 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 operating 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 Bureau of Control for Boise 

project.

ber 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

22,550

23,030

23,390

23,940

24,170

24,360

24,210

24,100

24,080

23,990

23,980

23,890

23,850

23,900

24,040

24,310

24,500

24,580

24,990

25,090

25,320

25,560

25,830

26,070

26,260

26,490

26,730

26,920

27,160

27,380

27,590

Nov.

27,980

28,350

28,620

28,970

29,170

29,170

29,660

31,150

33,830

36,610

39,310

41,800

44,340

46,580

48,220

48,650

48,710

48,760

48,760

48,930

50,040

51,780

53,890

56,210

58,400

60,680

63,130

65,480

67,490

69,460

-

Dec.

71,200

73,270

75,370

77,30O

79,240

81,200

32,980

84,980

86,650

88,690

90,530

91,740

91,890

92,030

91,890

91,890

91,740

91,740

91,740

91,740

91,740

91,740

91,740

91,740

91,740

91,740

91,740

91,740

91,740

91,740

91,740

Jan.

91,670

91,670

91,670

91,670

91,670

91,670

91,670

92,390

92,390

92,390

92,390

92,390

92,390

92,390

92,960

92,960

92,960

92,960

92,960

92,960

92,960

93,110

93,400

93,470

93,470

93,470

93,470

93,470

93,470

93,470

93,470

Feb.

93,470

93,470

93,470

93,470

94,120

94,410

94,480

94,550

94,550

94,550

94,620

94,620

94,620

94,620

94,770

95,570

96,370

97,470

99,020

100,900

102,800

104,700

107,100

109,400

111,600

113,300-

116,000

118,100

_

_

-

Mar.

119,800

121,900

123,900

126,100

128,600

130,400

132,700

134,800

136,800

138,800

140,700

141,700

143,700

145,800

146,000

145,900

145,800

145,800

145,800

145,800

145,700

145,500

145,400

145 , 300

145,000

145,200

145,200

145,500

146,700

148,500

150,500

Apr.

152,400

154,300

156,200

158,200

160,100

161,900

163,600

165,300

166,900

168,800

170,200

171,100

171,700

172,900

174,100

174,600

174,900

175,000

175,100

175,800

175,900

175,400

174,5OO

175,100

175,300

175,200

175,200

174,600

173,700

173,100

-

May

172,700

172,600

172,300

172,300

172,500

173,100

173,600

174,100

175,100

175,800

176,500

176,700

176,600

176,300

175,500

174,400

173,100

171,100

169,200

167,800

166,300

164,600

163,000

160,700

158,600

156,900

155,200

153,200

151,900

150,200

149,000

June

147,600

145,700

144,400

143,300

142,200

141,200

139,700

139,200

139,300

140,000

140,900

142,300

143,600

145,300

146,800

148, 6OO

149,700

151,200

152,300

153,100

153,000

152,800

152,300

151,900

151,600

151,400

151,200

151,100

150,600

149,700

-

July

148,000

146,400

144,800

143,100

141,500

139,600

137,900

136,100

134,300

132,300

130,500

128,500

126,500

124,100

122,200

120,200

118,300

116,500

114,600

112,900

110,900

109,100

107,100

105,200

103,300

101,100

99,010

97,100

95,930

93,830

92,030

Aug.

90,390

88,970

87,560

85,950

84,290

83,320

82,360

81,680

80,860

79,240

78,030

76,830

75,570

74,390

72 ,'880

70,940

69,460

68,060

65,980

64,050

62,150

60,200

58,460

56,980

55,280

53,830

52,740

51,270

50,090

49,040

47,830

Sept.

46,310

45,130

44,130

42,970

41,890

40,720

39,850

38,030

36,930

36,420

36,460

36,310

35,910

36,330

37,O30

37,670

38,770

39,390

39,780

39,660

39,420

39,190

38,910

38,810

38,690

38,640

38,520

38,300

38,350

38,520

-

Monthly gage height and contents, water year October 1949 to September 1950

Date

Calendar year 1949....

Aug. 31.................

Water year 1949-50....

Gage height 

(feet)

-

-

Content 5 

(acre-feet)

-

-

Change In contents 

during month 

(acre-feet)

+2,700

+15,890

253646 O - 53 - 11
154 MALHEUR RIVER BASIN

Malheur River near Drewsey, Oreg.

Location. Water-stage recorder, lat. 43°47' , long. 118°20' , in SE^ sec. 31, T. 20 S.,

K. 3b E. , 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. 

Kecorqs available. June to December 1920, April to September 1921, June 1939 to September

lybu.April to September 1923 and June 1926 to June 1939 at site 7 miles downstream

(records practically equivalent).

Average discharge.--24 years (1926-50), 157 second-feet.

extremes. maximum discharge during year, 1,270 second-feet Feb. 25; maximum gage height, 

 V.bU feet Feb. 25, ice jam; minimum discharge, 3.6 second-feet Sept. 17, 18.

1920-21, 1923, 1926-50: Maximum discharge, 4,290 second-feet Feb. 27, 1940

(gage height, 11.35 feet), from rating curve extended above 2,500 second-feet; no

flow at times. 

Remarks. Records good except those for periods of ice effect, which are poor. Several

small diversions above station for irrigation. 

Revisions (water years).--W 1093: 1927.

Rating tables, water year 1949-5O, except periods of Ice effect 

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

Oct. 1 to Feb. 25 Feb. 26 to Sept. 30

2.6 6.5 3.0 41 4.0 245 2.6 3 3.1 53 4.3 310 

2.7 13 3.2 70 4.5 370 2.7 9 3.2 68 4.8 460 

2.8 20 3.4 108 5.1 550 2.8 17 3.4 1O2 5.5 680 

2.9 29 3.7 170 5.9 820 2.9 28 3.6 142 6.4 1,010 

3.0 40 3.9 210 

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.8 

9.8 

9.1 

10 

14

14

9.8 

12 

16 

17

21 

23 

22 

23 

23

26 

27 

28 

26 

29

33 

36 

39 

39 

39

42 

 47 

52 

48 

49 

48

Nov.

47 

47 

47 

45 

45

44 

44 

44 

48 

52

52 

51 

52 

49 

48

48 

49 

49 

47 

44

49 

44 

51 

60 

72

64

61 

66 

70 

60

Dec.

61 

58 

55

37 

36

58 

*62 

61 

58 

b50

b45 

37 

37 

44 

56

61 

70 

74 

b66 

b64

60 

60 

75 

86 

88

68 

66 

72 

b66 

b58 

b61

Jan.

62 

b55 

b56 

b54 

b50

b50 

56 

60 

67 

b60

b60 

b55 

b55 

b50 

b50

b50 

b55

b60 

b60 

b65

b75 

b85 

*blOO 

b90 

b85

b85 

b85 

b75 

b70

b65 

b60

Feb.

b60 

b60 

b60 

b65 

b7o

b70 

b65 

b65 

b65

b65

b65

b6S 

b70 

b75 

b85

bBO 

bBO 

bBO 

bBO 

bBO

bB5 

b90 

bllO 

b!50 

bBOO

724 

520 

305

Month

Octo 

Hove 

Dece

Ca.

Janu 

Febr 

Mare 

Aprt

Mav

June 

July 

Augu 

Sept

Wa

mber ........ ..--..-

lendar year 1949 

ary

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

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

Mar.

*22B 

192 

400 

574 

469

394 

268 

230 

196 

180

144

117 

132 

138 

140

198 

628 

994 

580 

559

403 

412 

418 

322 

376

325 

280 

245 

212 

218 

379

Apr.

589 

820 

676 

493 

427

427 

496 

469 

466 

427

442 

505 

589 

642 

559

59Z

648 

698 

736 

750

802 

869 

858 

757 

610

601 

595

565 

472 

412

Secondfoot -days

841.5 

1,549 

1,850

61,240.0

2,005 

4,189 

10,351 

17,992 

8,051 

4,648 

780 

289.0 

149.4

52,694.9

Peak discharge (base, 800 sec. -ft. . Feb. 25 (3 a.m.

May

400 

439 

409 

346 

310

302 

270 

235 

218 

210

215 

225 

258 

278 

290

298 

288 

278 

245 

228

215 

218 

218 

225 

228

212 

205 

201 

201 

194 

192

Maximum

52 

72 

88

1,630

100 

800 

994 

869 

439 

238 

62 

15 

9.0

994

June

187 

180 

194 

189 

189

196 

238 

228 

198 

171

155 

151 

164 

160 

151

160 

140 

140 

146 

134

146 

194 

151 

132 

125

115 

98 

79 

71

66

July

62 

50 

44 

39 

39

39 

34 

30 

27 

32

21 

19 

18 

20

20

22 

18 

16 

16 

15

15 

19

20 

20 

20

19 

19 

18 

17 

16 

16

Aug.

15 

13 

11 

12 

12

12 

12 

13 

15 

11

11 

11 

11 

11 

9.8

8.4 

.2 

.2

.2 

.2

.2 

.2 

.2 

.2 

.2

.6 

.0 

.0 

.4 

.4

Sept.

5.4 

5.4 

5.4 

5.4 

4.8

4.8 

4.8 

4.8 

4.2 

4.2

4.2 

4.2 

4.2 

4.8 

4.8

4.2 

3.6 

3.6 

4.2 

4.2

4.2 

4.8 

4.8 

5.4 

5.4

5.4 

5.4

6.0 

7.8 

9.0

«m__ Mean »£*£

9.1 27.1 1,670 

44 51.6 3,070 

36 59.7 3,670

2.1 168 121,500

50 64.7 3,980 

60 150 8,310 

117 334 20,530 

412 600 35,690 

192 260 15,970 

66 155 9,220 

15 25.2 1,550 

5.4 9.32 573 

3.6 4.98 296

3.6 144 104,500

) 1,270 sec. -ft.; Mar. 18 (5 to S a.m.)

1,170 sec.-ft.; Apr. 2 (8 to 9 p.m.) 914 see.-ft.; Apr. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
MALHEUR RIVER BASIN 155

Malheur River below Warmsprings Reservoir, near Riverside, Oreg.

Location.--Water-stage recorder, lat. 43°34', long. 118 0 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. Prior to Sept. 29, 1949, hook gage at same site and 

datum.

Drainage area.--1,100 square miles.

Records available.--December 1914 to July 1917, March 1919 to September 1950. January 

1906 to March 1907 and December 1908 to September 1910 at site at Riverside, 4 miles 

downstream, in reports of Geological Survey. October 1910 to November 1914 at site at 

Riverside, in reports of State engineer.

Average discharge.--38 years (1909-16, 1919-50), 172 second-feet.

Extremes. Maximum discharge during year, 562 second-feet July 13, 14 (gage height, 4.97 

feet); minimum daily, 0.5 second-foot Nov. 1 to Dec. 31, Mar. 1 to Apr. 23.

1906-7, 1908-17, 1919-50: Maximum discharge observed, 5,490 second-feet Mar. 2, 1910 

(gage height, 10.7 feet, former site and datum), from rating curve extended above 820 

second-feet; no flow at times.

Remarks.--Records good except those below 10 second-feet, which are poor. Flow completely 

regulated since November 1919 by Warmsprings Reservoir (see p. 157 ). Several small diversions above station for irrigation.

Revisions (water years). W 833: 1936. W 1063: 1942-45.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18

19 

£0

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6 

6 

7 

7 

3

1 

1 

1 

2 

1

1 

1 

1

. 1

Nov.

0.5

Dec.

0.5

Jan.

1

Feb.

1

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1949

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

Mar.

0.5

Apr.

0.5

h25 

h!56

h220 

h220 

h266 

h346 

h346

Secondroot-days

56 

15.0 

15.5

61,513.5

31 

28 

15.5 

1,590.5 

13,212 

7,644 

14,543 

10,817 

3,259

51,226.5

May

h356 

h370 

h370 

h370 

h370

h370 

h370 

h370 

h370 

h370

h370 

h410 

h465 

h465 

h465

h465 

h465 

h465 

465 

465

465 

465 

465 

465 

465

465 

465 

465 

448 

432 

426

Maximum

7

620

346 

465 

410 

556 

448 

421

556

June

410 

410 

410 

410 

360

292 

238 

189 

144 

144

144 

144 

147 

153 

212

234 

238 

238 

238 

234

238 

270 

284 

284 

284

279 

266 

250 

250 

250

Minimum

July

262 

274 

338 

370

421

465 

465 

492 

526 

520

514 

514 

526 

556 

550

544 

538 

538 

532 

532

526 

526 

520 

504 

476

476 

438 

410 

400 

400 

390

_

-

356 

144 

262 

216 

6

-

Aug.

385 

356 

324 

306 

302

297 

292 

284 

262 

234

216 

216 

216 

246 

266

292 

346 

385 

421 

432

426 

426 

426 

426 

416

426 

448 

443 

438 

432 

432

Mean

1.8 

.5 

.5

169

1.0 

1.0 

.5 

53.0 

426 

255 

469 

349 

109

140

Sept.

421 

405 

395 

360 

302

274 

254 

216 

132 

95

62 

41 

28 

20 

14

12 

11 

10 

9 

8

6 

6 

12 

12 

21

23 

25 

27 

29 

29

Runoff In 

acre-feet

111 

30 

31

122,000

61 

56 

31 

3,150 

26,210 

15,160 

28,850 

21,460 

6,460

101,600

Note. Ho gage-height record, or gage heights affected by varying amounts of backwater from beaver 

dam Oct. 14 to Apr. 23j discharge computed from observer's estimates of leakage. 

h Computed from staff-gage reading.
MALHEUR RIVER BASIN

Malheur River at Little Valley, near Hope, Oreg.

Location. Water-stage recorder, lat. 43° 54', long. 117° 30', in SE^ sec. 24, T. 19 S.,

 K. 4y E., at Little Valley, 8 miles southwest of Hope and 13 miles southwest of Vale.

Datum of gage is 2,424.12 feet above mean sea level, datum of 1929, supplemental

adjustment of 194V. 

Drainage area. 3,010 square miles. 

Records available . April 1949 to September 1950. May 1919 to September 1949 at site 4

 miles downstream, published as Malheur River near Hope; records equivalent except 

during irrigation seasons when return flow from Vale-Oregon Canal enters river between sites.

Extremes . Maximum discharge during year, 2,370 second-feet Feb. 24 (gage height, 5.79

 feet ) , from rating curve extended above 350 second-feet on basis of peak discharge at 

station near Hope; minimum, 22 second-feet Dec 11, 20, 31.

1949-50: Maximum discharge, that of Feb. 24, 1950; minimum, that of Dec. 11, 20, 

31, 1949.

The two greatest floods known occurred in March 1894 and March 1910. 

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

 Oregon Canal diverts at Namorf ; no other large diversions above station, bat many 

small ones. Flow regulated by Warmsprings and Agency Valley Reservoirs (see p. 157).

g table, water year 1949-50, except periods of Ice el 

Tgage height, In feet, and discharge, In second-feet 1 

(Backwater from moss Oct. 1-26, Jane 23 to Sept. 30)

1.9

2.0

2.1

2.3 119

2.5 170

2.8 265

3.1 380

3.4 520

3.8 720

4.3 1,030

4.8 1,400

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

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

48 

48 

46 

46 

45

43 

43 

40 

39 

36

33 

29 

29 

32

30

29

28 

27 

26 

27

29 

29 

29 

28

26

27 

27 

27 

26 

25 

26

Nov.

26 

26 

26 

25 

25

24

26 

26 

26 

26

25 

25 

25 

25 

24

32 

39 

42 

43 

43

43 

45 

51 

51 

51

51 

50 

45 

43 

45

Dec.

43 

43 

40 

36 

36

42 

40 

*40 

46 

38

b30 

42 

45 

45 

42

45 

45 

48 

40 

b30

40 

51 

50 

b35 

b35

b40 

50 

48 

40 

b35 

b35

Jan.

fc35 

b!5 

b30 

b30 

b30

b30 

b35 

b35 

b35 

b40

40 

b40

b35 

b35 

b35

b35 

b35 

b30 

b30 

b30

b30 

b35 

b40 

*b73 

b60

b60 

b50 

bSO 

b50 

b45 

b45

Feb.

b45 

b45 

b45 

b50 

b50

b50 

b50 

b50 

b50 

b50

b55 

b55 

60 

62 

62

64 

b70 

b70 

b80 

b90

bl!5 

b!30 

188 

944 

1,340

792

630 

443

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year

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

Mar.

304

237 

336 

324

296 

234 

194 

170 

152

142 

126 

117 

108 

101

98 

149

332 

448 

407

412 

27S 

227 

224 

244

268 

248 

218 

191 

165 

149

Apr.

167 

265 

248 

165 

165

144 

88 

71 

66 

56

48 

43 

43 

42 

40

36 

33 

35 

38 

38

35 

39 

144 

200 

197

227 

240 

227 

215 

240

Secondfoot-days

1,023 

1,054 

1,275

-

1,223 

5,735 

7,120 

3,595 

7,631 

3,533 

7,087 

4,351 

1,792

45,419

Bay

244 

251 

244 

265 

265

286 

286 

286 

272 

224

165 

147 

167 

215 

240

244

258 

262 

268 

276

276 

276 

265 

258

262

254 

240 

240 

240 

237 

318

Maximum

48 

51 

51

-

78 

1,340 

448 

265 

286 

203 

286 

209 

185

1,340

June

203 

188 

188 

200 

203

188 

194 

147 

122 

92

73 

6O 

53 

50 

50

56 

101 

105 

101 

92

92 

98 

122 

165 

157

124 

117 

81 

58 

53

July

58 

67 

105 

132 

182

203 

209 

200 

218 

258

262 

254 

258 

265 

279

286 

286 

282 

286 

279

279

286 

286 

286 

279

268 

262 

237 

197 

176 

162

Minimum

25 

24 

30

-

30 

45 

98 

33 

147 

50 

58 

58

24

Aug.

152

152 

144 

134 

124

126 

124 

122 

108 

83

90 

73 

64 

60 

58

64 

73 

117 

152 

173

194 

200 

182 

188 

206

188 

191 

209 

206 

203 

191

Mean

33.0 

35.1 

41.1

-

39.5 

205 

230 

120 

246 

118 

229 

140 

59.7

124

Sept.

185 

182 

165 

160 

129

83 

64 

54

46

43

43 

45 

43 

45 

42

38 

38

34

33

30 

28 

28 

27 

27

26 

26 

28 

30 

34

Runoff in 

acre-feet

2,030 

2,090 

2,530

-

2,430 

11,380 

14,120 

7,130 

15,140 

7,010 

14,060 

8,630 

3,550

90,100

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
MA1HEOR RIVER BASIN

Reservoirs in Malheur River Basin, Oreg.

Warmsprings Reservoir. Tape gag

Drainage area, 1,100 square miles. Records available, January 1920 to September _- 

Maximum contents observed during year, 82,550 acre-feet May 3 (elevation, 3,377.50 

feet); no contents Sept. 18-30. Maximum contents observed during period 1920-50, 

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, Sept. 18-30, 1950.

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 StOra£ra ^ ^(~in anna-faaf- Hal nur alowa + -in>n Q ^97 ^00+ nt^i- n KI n 1 n ,~\ cH n n r>Gn r,r»rl a r-ir>o_

Government for Vale project of Bureau of Reclamation. Water used to irrigate lands on 

both sides of river between Namorf and Ontario. Weekly gage readings October to April 

and once-daily gage readings May to September and data for computing capacity table 

furnished by Bureau of Reclamation.

Agency Valley Reservoir.--Pressure gage with mercury column, lat. 43°55', long. 118°09', 

in SW-J- sec. ifa , 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 1929. Drainage area, 420 square miles. Records available, 

December 1935 to September 1350. Maximum contents observed during year, 47,570 acrefeet Apr. 23 (elevation, 3,333.10 feet); no contents Sept. 17-30. Maximum contents 

observed during period 1935-50, 62,770 acre-feet May 3, 1941 (elevation, 3,341.50 feet) 

no contents Sept. 17-30, 1950.

Reservoir is formed by earth-fill rock-faced dam; storage began in December 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.

which has a capacity of 49,000 acre-feet.

Monthly elevation and contents, water year October 1949 to September 1950

Date

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

Calendar year 1949

Feb. 28...... .......

June 30. ............

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

Water year 1949-50

Warmsprings Reservoir

Elevation 

(feet)t

3,328.30 

3,344.20

-

3,377.28 

3,373.56 

3,370.87 

3,357.95 

3,342.58

-

Contents 

(acre-feet)

70 

a2,220 

a6,090 

9,340

-

a!2,860 

a20,960 

a45,210 

81,870 

70,480 

62,640 

30,900 

7,630 

0

-

Change In 

contents 

during month 

(acre-feet)

+2,150 

+3,870 

+3,250

-3,780

+3,520 

+8,100 

+24,250 

+36,660 

-11,390 

-7,840 

-31,740 

-23,270 

-7,630

-70

Agency valley Reservoir

Elevation 

(feet)*

3,301.80 

3,300.58 

3,305.28 

3,308.78

-

3,312.20 

3,315.98 

3,324.22 

3,332.52 

3,330.93 

3,327.55 

3,314.34 

3,299.00

-

Contents 

(acre-feet)

10,160 

9,350 

12,750 

15,760

-

19,190 

23,360 

33,920 

46,600 

44.010 

38,780 

21,480 

8,340 

0

-

Change In 

contents 

during month 

(acre-feet)

-810 

+3 , 400 

+3,010

-16,060

+3,430 

+4,170 

+10,560 

+12,680 

-2,590 

-5,230 

-17,300 

-13,140 

-8,340

-10,160

t Time of observed gage reading not given.

* Gage readings observed about 8 a.m.

a No gage-height record; contents Interpolated.
MALHEUR RIVER BASIN

North Fork 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 

E., 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. January to September 1914, June 1936 to September 1950.

Average discharge.--14 years, 122 second-feet.

Extremes.--Maximum discharge during year, 534 second-feet Apr. 22; maximum gage height, 

3.3b feet Dec. 22 (ice jam); minimum discharge, 26 second-feet Dec. 3 (gage height, 0.40 

foot).

1914, 1936-50: Maximum discharge recorded, 1,010 second-feet Feb. 12, 1947; maximum 

gage height, 4.60 feet Mar. 26, 1940; minimum discharge recorded, 12 second-feet Jan. 

27, 1948, but may have been less at times during periods of ice effect.

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

which are poor. A few diversions above station for irrigation.

Revisions (water years).--W 883; 1938(M). W 1093: 1944(m).

Rating tables, water year 1949-50, except periods of Ice effect 

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

Oct. 1 to Apr. 1 Apr. 2 to Sept. 30

0.6 39 1.2 122 0.4 31 1.0 99 1.9 285 

.7 48 1.5 180 .6 46 1.2 134 2.3 390 

.8 60 1.9 275 .8 69 1.5 193 2.7 51O 

1.0 89 2.4 410

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

48 

47 

46 

45 

48

54 

54 

52 

52 

58

54 

52 

49 

48 

48

47 

47 

46 

a45 

a45

a45 

a45 

a45 

a45 

a45

a45 

a45 

a45 

a46 

47 

49

Nov.

52 

54 

53 

53 

52

52 

53 

54 

60

61

59 

60 

56 

58 

56

56 

56 

55 

53 

52

50 

53

60 

73

64

61 

68 

82 

66 

66

Dec.

61 

61 

39 

50 

63

59 

58 

*53 

50 

b40

ID 40 

b45 

b50 

b45 

b42

b40 

b40 

b40 

b40 

b40

b42 

b45 

b48 

b50 

55

b52 

bSO 

b50 

50 

59 

55

Jan.

b55 

b50 

b50 

b50 

b50

b50 

b50 

b50 

b50 

b50

b50 

b50 

b50 

b50 

b55

b55 

b60 

b65 

b70 

b80

b75 

b65 

b60 

*a55 

a55

a50 

aSO 

a50 

aSO 

aSO 

a50

Feb.

a50

a50 

b55 

b60 

b70

b65 

b65 

b60 

a60 

a60

a60 

a60 

a65 

a70 

a80

a75 

a75 

b75 

b70 

b70

b70 

b75 

b80 

b85

99

114 

135 

95

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194=

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

Mar.

91 

*94 

193 

170 

176

131

a!20 

a!15 

allO 

a!05

a 100 

aloo 

a!05 

alio 

a!30

also 

a250 

a400 

a250 

a200

a!90 

al80 

a!60 

a!50 

a!40

a!30 

120 

115 

100 

140 

224

Apr.

310 

355 

a 300 

a270 

a250

h260 

278 

a260 

a260 

a260

298 

355 

399 

342 

348

363 

399 

402 

402 

435

471 

495 

453 

375 

358

352 

363 

330 

308 

300

Secondfoot-days

1,487 

1,748

1,512

44,353

1,700 

2,048 

4,779 

10,351 

9,494 

5,301 

2,201 

1,505 

1,273

43,399

Peak discharge (base, 400 sec. -ft.). Apr. 2 (1 a.m.)

Hay

320 

315 

288 

278 

260

248 

228 

219 

223 

235

251 

282 

332 

378 

405

399 

396 

363 

328 

310

315 

338 

355 

350 

325

308 

305

300 

290 

282 

268

Maximum

58 

82 

63

590

80 

135 

400 

495 

405 

260 

104 

73 

64

495

June

260 

253 

242 

232 

228

235 

242 

221 

197 

181

167 

165 

159 

153 

147

169 

161 

157 

163 

157

199 

177 

157 

151 

145

134 

125 

114 

108 

102

July

101 

99 

101 

99 

104

99

97 

94 

93 

86

88 

86 

82 

68 

63

59 

58 

57 

57 

56

54 

54 

52 

49 

48

50 

53 

52

48 

47 

47

Aug.

47 

46 

49 

49 

63

73 

62 

58 

56 

56

 56 

54 

50 

52 

50

50

46 

40 

41 

41

43 

43 

43 

45 

44

42 

42 

43 

41 

40 

40

Sept.

40 

40 

39 

39 

38

37 

37 

37 

37 

37

37 

36 

35 

35 

35

32 

35 

37 

42 

42

43

44 

45 

46 

49

54 

59 

59 

63 

64

Mini, Hean »£«£

45 48.0 2,950 

50 58.3 3,470 

39 48.8 3,000

36 122 87,970

50 54.8 3,370 

50 73.1 4,060 

91 154 9,480 

250 345 20,530 

219 306 18,830 

102 177 10,510 

47 71.0 4,370 

40 48.5 2,990 

32 42.4 2,520

32 119 86,080

453 sec. -ft.; Apr. 12 (2 a.m.) 423 sec. -ft. j

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Malheur River near Drewsey 

and computed Inflow to Agency Valley Reservoir. 

b Stage-discharge relation affected by Ice. 

h Computed from staff-gage reading.
MALHEUR RIVER BASIN 159

North Fork Malheur River at Beulah, Oreg.

Location. Water-stage recorder, Lat. 43°54I , long. 118°09', in W£NE£ sec. 22, T. 19 S., R.

 3V K., at Beulah, a quarter of a mile downstream from .Agency Valley Dam and 12 miles 

northwest of Juntura. Datum of gage is 3,262.47 feet above mean sea level, datum of 

1929. Prior to Sept. 29, 1949, staff gage at same site and datum.

Drainage area. 420 square miles.

Records available.--January 1936 to September 1950. March 1909 to June 1912 and November

 1913 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.--15 years (1935-50), 128 second-feet.

Extremes.--Maximum discharge during year, 446 second-feet Apr. 21-30 (gage height, 2.62

 feetJ; minimum, 0.1 second-foot Dec. 10.

1909-12, 1913-14, 1926-50: Maximum discharge, 7,000 second-feet (regulated by sudden 

storage release) May 7, 1942 (gage height, 8.4 feet, from floodmark); maximum unregulated, 5,910 second-feet Kar. 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 below 40 second-feet, which are poor. Flow regulated

 by Agency Valley Reservoir (see p.157 ). Small diversions above station for irrigation; 

practically entire summer flow is diverted below station and above Juntura.

Rating table, water year 1949-50 (gage height, in feet, 

and discharge, in second-feet)

0.1 

.2

0.2

1.0 

4.0 .9 

1.1 

1.4

64

93

145

1.7 205

2.1 300

2.7 470

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

242 

242

228 

211 

211

191 

185 

163 

145 

105

74 

37 

.7 

.6 

.5

.5 

.6 

.7 

.7 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.9 

1.3 

1.3 

1.3

Nov.

1.3 

1.3 

.3 

.6 

.6

.6 

.6 

.9 

.9 

1.6

1.6 

1.6 

1.3 

1.0 

1.0

.9

.9 

.9 

1.0 

1.0

.9 

.9 

.8 

.8 

.8

.8 

.8 

.8 

.7 

.4

Dec.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

a. 2 

a. 2

Jan.

aO.2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

.2 

.2

.2 

.2

.2 

a. 2 

a. 2 

a. 2

Feb.

aO.2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2

a. 2 

a. 2 

a. 2

a. 2 

a. 2

a. 2 

a.Z 

a. 2

a. 2

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Mnv

June 

July 

Augu 

Sept

Ha

ber. ................ ....................

lendar year 194 

apy

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

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

Mar.

aO.2 

.2 

.4 

.3 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.2

.3 

.3

.4 

.4 

.4 

.4

Apr.

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.6 

.7 

.8

.8 

.8 

.8 

.8 

55

107 

109 

111 

111 

159

314 

446 

446 

446 

446

446 

446 

443 

446 

443

Secondfoot -days

2,049.5 

34.6 

7.2

53,319.3

6.2 

5.6 

10.3 

4,982.8 

11,134 

8,277 

10,609 

8,564 

5,610

51,290.2

May

443 

443 

443 

422 

404

386 

365 

338 

308 

300

300 

298 

300 

300 

318

348 

359 

359 

359 

362

362

362 

362 

362 

362

362

362 

362 

362 

359 

362

Maximum

242 

1.9 

.4

505

.2 

.2 

.4 

446 

443 

359 

362 

305 

353

446

June

359 

359 

359 

359 

359

359 

356 

356 

305 

265

248 

248 

248 

260 

275

275 

275 

272 

272 

272

272 

272 

272 

238 

221

205 

155 

157 

185 

219

July

252 

275 

308 

330 

345

356 

356 

353 

353 

3 5O

353 

356 

356 

353 

353

356 

359 

356 

356 

353

359 

362 

362 

359 

362

362 

362 

338 

322 

310 

282

Minimum

0.5 

.4 

.2

-

.2

.2 

.2 

.5 

298 

155 

252 

245 

49

.2

Aug.

272 

270 

278 

280 

278

278 

278 

272 

272 

272

255 

245 

248 

248 

262

270 

270 

268 

268 

268

262 

262 

288 

305 

302

300 

300 

300 

298 

295 

300

Mean

66.1 

1.15 

.23

146

.20 

.20 

.33 

166 

359 

276 

342 

276 

187

141

Sept.

3OO 

298 

282 

272 

248

235

255 

270 

325 

353

350 

345 

332 

312 

288

255 

183 

59 

58 

55

54 

52 

52 

50 

49

54 

56 

56 

56 

56

Runoff In 

acre-feet

4,070 

69 

14

1O5.80O

12 

11 

20 

9,880 

22,080 

16,420 

21,040 

16,990 

11,130

101,700

a No gage-height record; discharge interpolated.
160 MALHEDR RIVER BASIN

Bully Creek near Vale, Oreg.

Location.--Mater-stage recorder, lat. 43°58', long. 117 D 21', in SM^- sec. 33, T. 18 S. , R.44 

K. , fa miles southwest of Vale.

Records available --October i- L^U^I 1945 x^toto uu September o^pb^muri 1950 J.JGU in _ui reports itpuiba of ui Geological u-oj.u^j.cci-L Survey; c>ui vey ; March mai ui. 

1941 in reports of State engineer; October 1941 to September 1945 ir

nnoo-vT Aiirma-t- T Qn ^ 4-.-, Me v),-i h Tun'7 T7cV.nnn->-nr nulfl {-,^. Mmr 1 Q1 n n^.^

^>cji i'_j u_^ u-mu-ri _La^j_ _LII r~puibb 01 oua.be en^_Lneei , ucujLier _Lci4j. bu ^epbemuer -LJ^o 

lies of State engineer. August 1903 to March 1907, February 1910 to May 1917, and

March 1922 to June 1923 at site 9 miles upstream, i n reports of Geological Survey; Februand increasing return flow from Vale-Oregon Canal since 1931,

Average discharge.--14 years (1933-34, 1937-50), 38.6 second-feet.

Extremes. Maximum discharge during year, 358 second-feet about June 24; maximum gage 

nelght, 4.9 feet Feb. 16, from floodmark (ice jam); minimum discharge, 1 second-foot 

Dec. 12.

1903-7, 1910-17, 1919, 1922-23, 1333-50: Maximum discharge, 6,240 second-feet Mar. 

1, 1910 (gage height, 8.6 feet, site and datum then in use), from rating curve extended 

above 1,200 second-feet; no flow at times.

Revisions.--The figures of maximum discharge for the water years 1946 and 1947 have 

been revised to 980 second-feet (gage height, 3.98 feet) and 1,300 second-feet (gage 

height, 4.60 feet), respectively, superseding those published in Water-Supply Papers 

1063 and 1093.

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

backwater from aquatic vegetation, which are poor. Occasional fluctuations caused by 

releases from Vale-Oregon Canal of Vale-Oregon Irrigation District, which diverts water 

from Malheur River for irrigation of lands west of Vale; considerable return flow at 

times enters Bully Creek above station. Small diversions above station for irrigation.

Cooperation.--Mater-stage recorder inspected by employees of Vale-Oregon Irrigation District.

Day

(water

year)

1945-46

Dec. 28

Feb. E7

28

Mar. 1

2

3

4

5

6

7

Discharge

(secondfeet)

145

177

417

238

210

150

114

124

308

282

Day

(water

year)

1945-46

Mar. 8

9

10

11

12

13

14

15

16

17

Discharge

(secondfeet)

194

26E

282

268

252

503

352

240

189

161

Month

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

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

February 1947 ................

Water year 1947 .... .......

Calendar year

Secondfoot-days

3,257

17,616

3,059

Day

(water

year)

1945-46

Mar. 18

19

20

21

22

23

24

25

26

27

Maximum

220

503

- 662

662

Discharge

(secondfeet)

147

174

333

500

374

302

262

222

196

210

Minimum

20

11

12

2

Day

(water

year)

1945-46

Mar. 28

29

30

31

Apr. 1

2

3

1946-47

Feb. 13

Mean

109

40.3

73.5

17.9

17.1

Discharge

(secondfeet)

220

233

222

208

220

201

187

662

Runoff in 

acre-feet

2,080

2,530

6,460

34,940

4,080

12.374
MALHEUR RIVER BASIN 161

Discharge, in second-feet, of Bully Creek near Vale, Oreg., 

water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

11 

11 

11 

10 

11

10

11 

11 

11 

11

11 

11

10 

10 

10

10 

10 

9 

10 

10

10 

10 

10 

10 

10

10 

10 

10

9 

9 

9

Nov.

9 

14 

16 

14 

11

11 

11 

11 

11 

11

11 

10 

10 

10 

10

10 

10 

10 

9

9

9 

9 

10 

11 

10

10 

9 

9 

9 

10

Dec.

9 

9 

9 

8 

8

9 

9 

*8 

8 

7

7 

7 

7 

8

8

8 

9 

9 

7 

b6

8 

8 

9 

7 

6

6 

6 

6 

7 

7 

b7

Jan.

b7 

b7 

b6 

b5 

b5

b5 

b6 

b7 

b7 

b8

8 

b8 

b7 

b8 

b7

8 

9

b9 

9 

9

10

11 

15 

*bll 

blO

bll 

12 

blO 

b9 

b8 

b7

Feb.

b6 

b6 

b7 

b9

bll

b!2 

b!2 

blO 

10 

blO

10 

10 

10 

10 

10

10 

10 

10

11

14

b!4 

b!5 

15 

b40 

213

125 

127 

129

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Peak discharge (base, 130 see. -ft. ). --Feb.

ft.; Mar. 17 (12 p.m.) 292 sec. -ft.; about J 

* '/(inter discharge measurement made on thi 

a No gage-height record; discharge compute

Mar.

94 

76 

84 

*170 

153

162 

109 

88 

75 

64

55 

48 

46 

46 

44

41 

52 

200

155 

151

111 

99 

99 

99 

111

109 

95 

81 

74 

66 

65

Apr.

72 

103 

95 

75

62

55 

46 

49 

49 

44

42 

61 

34 

32 

25

21 

30 

40

34 

17

15 

13 

21 

26 

11

9 

7 

6 

7 

9

Secondfoot-days

316 

314 

237

7,068

259 

876 

2,922 

1,110 

472 

613 

441 

496 

401

8,457

May

9 

10 

11 

12 

12

12 

13 

12 

13 

13

13 

13 

13 

13 

13

16 

16 

18 

20 

50

31 

18 

15 

13 

13

13 

14 

15 

15 

11 

12

Maximum

11 

16 

9

118

15 

213 

200 

103 

50 

100 

22 

17 

18

213

June

10 

10 

13

18 

18

21 

21 

20 

a20 

a!7

a!5 

a!3 

all 

alO 

all

a!3 

a!5 

a!6 

a!4

a!3

a!5 

a20 

a25 

a 100 

a 50

a35 

a25 

a20 

a!5 

a9

July

alO 

all 

a!2 

a!3 

a!4

a!4 

a!3 

a!3 

a!4 

a!5

a!5 

a!4 

a!3 

a!3 

a!3

a!3 

13 

13 

12 

12

13 

14

15 

17 

18

18 

22

16 

16 

16 

16

Aug.

15 

16 

16 

16 

16

16 

16 

17

17 

17

17 

16 

16 

16 

16

17 

17 

16 

17 

17

16 

15 

15 

15 

15

15 

15 

15 

16 

16 

16

Sept.

16 

18 

18 

IT 

17

16 

16 

16 

17 

17

16 

16 

15 

14 

14

13 

12 

10 

10 

10

10 

9 

10 

10 

10

11 

12 

12 

10 

9

Minimum Hean ^«e £

9 10.2 627 

9 10.5 623 

6 7.6 470

3 19.4 14,040

5 8.4 514 

6 31.3 1,740 

41 94.3 5,800 

6 37.0 2,200 

9 15.2 93S 

9 20.4 1,220 

10 14.2 875 

15 16.0 984 

9 13.4 795

5 23.2 16,780

25 (3:30 a.m.) 302 sec. -ft.; Mar. 6 (8 a.m.) 202 sec.- 

une 24 (time unknown) 358 sec. -ft. 

s day. 

d on basis of recorded range in stage, weather records,

and records for Malheur River at Little Valley near Hope 

b Stage-discharge relation affected by ice. 

Note.--Backwater from aquatic vegetation Oct. 1 to Nov. 2, June 6 to Sept. 30.
162 PAYETTE RIVER BASIN

South Fork Payette River at Lowman, Idaho

Location.--Water-stage recorder, lat. 44°05', long. 115°37'30", in S'4 sec. 27, T. 9 N., 

K. 7 E., 1,200 feet upstream from Rock Creek, half a mile northwest of Lowman post office, and 4,100 feet downstream from Clear Creek. Altitude of gage, 3,790 feet (from 

river-profile map).

Drainage area.--456 square miles.

Records available.--May 1941 to September 1950.

Extremes.--Maximum discharge during year, 4,370 second-feet June 22 (gage height, 6.27 

feet]; minimum, 182 second-feet Jan. 3 (gage height, 2.47 feet).

1941-50: Maximum discharge, 5,250 second-feet May 28, 1948 (gage height, 6.73 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 fair. No 

regulation. Several small diversions for irrigation and placer raining, the return flow 

from which enters river above station.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

328

323

318

318

4O6

368

363

353

348

363

353

358

348

338

333

333

328

323

323

323

318

318

314

314

314

314

310

318

348

318

310

Nov.

305

3OO

3OO

296

£96

292

£92

310

343

333

314

314

314

310

300

300

*305

305

300

292

287

292

343

452

458

406

508

739

553

488

Dec.

440

4£2

363

b340

b380

363

348

343

343

270

242

270

348

310

314

348

333

343

*323

292

318

343

338

323

282

323

318

b315

b300

D300

292

Jan.

D300

314

234

258

£58

b300

b310

b320

b£80

b250

D30O

b310

b300

b290

b280

b290

b310

b310

b310

b390

b520

546

458

412

348

333

363

353

318

296

*282

Month

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

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

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

Calendar year 1949 ....... .

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

February ... . - . . - ...... .....

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

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

May ........... .... ........ ,

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

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

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

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

Water year 1949-5O ..... ....

Feb

£87

254

274

358

373

395

353

333

323

305

310

300

296

300

305

314

314

310

314

318

310

310

314

353

482

514

5O8

501

_

-

Secondfoot-days

10,344

10,647

10,187

295 ' 32O

10, 143

9,628

12,311

30,426

61,861

98,8OO

62, 2O1

20,032

13,762

350,342

Mar

464

440

428

412

446

470

428

422

406

395

378

348

353

368

343

3'43

446

458

434

406

395

406

384

390

384

368

368

353

338

353

384

Maximum

406

739

440

4,420

546

514

470

1,780

3,110

4^040

916

611

4,290

Apr.

470

625

567

520

520

589

649

697

689

714

748

880

1.050

1,120

1,020

1,100

1,310

1,350

1,300

1,380

1,650

1,780

1,550

1,340

1,240

1,200

1,200

1,120

1,050

998

-

May

1,060

1,030

980

943

898

853

826

844

835

862

1,030

1,350

1,780

2,230

2,540

2,600

2,680

2,610

2,230

2,010

2,130

2,610

3,110

3,100

2,870

2,800

2,930

3,080

3,040

2,980

3,O2O

Minimum

310

287

242

220

234

254

338

470

826

2,530

889

470

412

234

June

3,110

3,260

3,110

3,110

3,400

3,740

3,760

3,180

2,720

2,530

2,610

2,860

2,820

2,860

3,040

3,270

3,520

3,520

3,610

3,800

4,100

4,290

4,060

3,490

2,930

2,760

2,820

3,100

3,540

3,880

-

Mean

334

355

329

809

327

344

397

1,014

1,996

3,293

2,006

646

459

960

July

4,040

4,020

3,710

3,510

3,270

3,160

3,020

2,980

2,580

2,480

2,320

2,080

1,910

1,820

1,780

1,690

1,570

1,490

1,420

1,360

1,300

1,240

1,200

1,160

1,120

1,080

1,050

1,020

989

943

889

Per 

square 

mile

0.732

.779

.721

1.77

.717

.754

.871

2.22

4.38

7.22

4.40

1.42

1.01

2.11

Aug.

844

£

£

£

26

17

35

898

916

£'

'

08

56

22

697

681

e

e

e

89

65

41

618

603

c

c

c

89

89

82

575

553

c

E

5

46

40

40

527

520

c

E

4

4

14

01

88

82

470

Sept.

464

452

446

440

434

428

428

458

611

540

494

482

470

458

452

452

458

482

464

446

434

428

428

417

412

464

488

446

440

446

-

Runoff

Inches

0.84

.87

.83

24.07

.83

.79

1.00

2.48

5.05

8.06

5.07

1.63

1.12

28.57

Acre-feet

20,520

21,120

20,210

585,800

20,120

19,100

24,420

60,350

122,700

196,000

123,400

39,730

27,300

695,000

7 (6:30 a.m.)
PAYETTE RIVER BASIN 163 

South Fork Payette River near Garden Valley, Idaho

Location.--Water-stage recorder, lat. 44°04 I , long. 115°56 I , 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. Altitude of gage, 

3,090 feet (from river-profile map).

Drainage area.--779 square miles.

Records available.--May 1921 to September 1950.

Average discharge.--26 years (1924-50), 1,240 second-feet.

Extremes.--Maximum discharge during year, 7,310 second-feet June 22 (gage height, 6.29 

feet); minimum, 268 second-feet Dec. 1C (gage height, 1.40 feet).

1921-50: 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, which are fair. Practically 

no diversions above station. Since Nov. 2, 1930, flow has been regulated by Deadwood 

Reservoir (see p. 168).

Rating table, water year 1949-50, except periods of ice effect 

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

1.5 320 3.4 2,080 

1.8 500 4.0 2,980 

2.2 805 5.0 4,710 

2.8 1,360 6.2 7,120

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,100 

1,070 

1,010 

1,030 

1,180

1,020 

514 

468 

449 

487

462 

462 

468 

449 

442

436 

430 

424 

424 

418

418 

412 

412 

412 

418

418 

412 

418 

474 

449 

43O

Nov.

424 

418 

412

406 

406

406 

406 

424 

487 

507

449 

442 

436 

436 

430

412

406 

406 

418 

376

365 

359 

436 

599 

614

541 

569 

908 

708 

636

Dec.

1,300 

569 

481 

394 

487

481 

449 

430 

418 

365

331 

299 

418 

406 

359

424 

430 

436 

*418 

388

388 

424 

436 

430 

394

400 

430 

418 

b405 

406 

400

Jan.

394 

400 

b360 

b350 

b390

b410 

430 

430 

376 

337

400 

412 

406 

394 

b380

388 

424 

424

430 

528

700 

864 

805 

676 

b520

b460 

b470 

b480 

b440 

b410 

*b360

Feb.

b350 

b330 

b310 

b510 

b550

b580 

b520 

b500 

487 

455

442

430 

418 

418 

424

436 

442 

436 

442

455

449 

442 

449 

494

716

814 

814 

805

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1949 . . . . . . .

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

Mar.

724 

684 

668 

636 

668

748 

692 

668 

629 

592

569 

507 

500 

541 

*507

500 

692 

848 

748 

684

652 

660 

644 

644 

652

622 

614 

584 

548 

562 

584

Apr.

1, 

1, 

1,

1,

1, 

1,

1, 

1, 

1,

1, 

1, 

2, 

1, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2,

2,

Secondfoot-days

17,416 

14,242 

13,814

479,055

14,248 

13,918 

19,571 

52,640 

109,940 

152,920 

88,400 

30,650 

36,344

564,103

716 

998 

962 

873 

864

917 

020 

120 

120 

140

180 

330 

580 

700 

570

640 

960 

070 

990 

070

450 

760 

420 

250 

690

770 

800 

680 

540 

460

May

2,570 

2,560 

2,440 

2,380 

2,320

2,230 

2,190 

2,220 

1,900 

1,330

1,520 

1,980 

2,710 

3,500 

4,020

4,270 

4,620 

4,520 

3,950 

3,710

3,880 

4,630 

5,510 

5,550 

4,940

4,540 

4,730 

4,900 

4,880 

4,690 

4,750

Maximum

1,180 

908 

1,300

7,200

864 

814 

848 

2,800 

5,550 

7,220 

6,150 

1,340 

2,390

7,220

June

4,880 

5,110 

4,900 

4,880 

5,150

5,490 

5,550 

4,790 

4,070 

3,690

3,740 

4,050 

4,000 

3,960 

4,200

4,470 

4,750 

4,860 

5,250 

6,090

7,060 

7,220 

6,870 

6,130 

5,370

4,920 

4,840 

5,090 

5,570 

5,970

July

6,150 

6,130 

5,770 

5,470 

5,110

4,920 

4,380 

3,490 

3,190 

3,110

3,030 

2,770 

2,800 

3,330 

3,170

2,720 

1,900 

1,770 

1,700 

1,650

1,590 

1,560 

1,520 

1,510 

1,480

1,450 

1,430 

1,390 

1,350 

1,310 

1,250

Aug.

1,200 

1,180 

1,170 

1,220 

1,280

1,340 

1,200 

1,120 

1,090 

1,050

1,020 

1,020 

1,010 

971 

962

944

882 

882 

856 

839

830 

830 

908 

944 

953

848 

830 

830 

830 

814 

797

Minimum Mean

412 562 

359 475 

299 446

290 1,312

337 460 

310 497 

500 631 

716 1,755 

1,330 3,546 

3,690 5,097 

1,250 2,852 

797 989 

599 1,211

299 1,545

Sept.

797 

797 

797 

848 

848

848 

856 

917 

1,110 

908

676 

644 

660 

684 

684

614 

599 

622 

614 

821

1,550 

1,570 

1,880 

2,140 

2,220

2,280 

2,390 

2,330 

2,320 

2,320

Runoff in 

acre -feet

34,540 

28,250 

27,400

950, 100

28,260 

27,610 

38,820 

104,4OO 

218,100 

303,300 

175,300 

60,790 

72,090

1,119,000

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
164 PAYETTE RIVER BASIN

South Pork Payette River near Banks, Idaho

Location.--Water-stage recorder, lat. 44°05'30", long. 116°06', in sec. 28, T. 9 N., R. 3 

E., 1 mile upstream from North Pork Payette River and ij miles northeast of Banks. 

Altitude of gage, 2,805 feet (from river-profile map).

Drainage area.--1,300 square miles.

Records available.--August 1921 to September 1950.

Average discharge.--29 years', 1,654 second-feet.

Extremes.--Maximum discharge during year, 9,160 second-feet June 22 (gage height, 8.63 

feet); minimum, 285 second-feet Dec. 11 (gage height, 0.13 foot).

1921-50: 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.

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

good. Small diversions above station for irrigation. Since Nov. C, 1930, flow has been 

regulated by Deadwood Reservoir (see p. 168).

Discharge, in second-feet, water year October 1949 to September 195O

Day

1

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22

23 

24 

25

26 

27 

28 

2S 

30 

31

Oct.

,210 

,200 

,120 

,130 

,330

1,240 

712 

585 

560 

612

575 

575 

575 

550 

535

535

530 

520 

520 

520

520 

515 

515 

515 

515

515 

510 

520 

580 

560 

525

Nov.

520 

515

510 

505 

500

500 

500 

520 

629 

656

570 

555 

550 

540 

530

520 

520 

510 

500

480

455 

445 

565

816 

846

712 

739 

1,130

906 

780

Dec.

1,430 

722 

575 

426 

570

590 

540 

525 

500 

460

345 

381 

515 

555

500

520 

550 

550 

545 

465

450 

545 

570 

560 

490

490 

545 

540 

505 

520 

515

Jan.

510 

515 

465 

445 

505

510 

540 

535 

a50O 

a450

500 

500 

515 

550 

a510

a560 

612 

634 

624 

762

972 

1,310 

1,260

1,020 

792

662 

695 

700 

585 

a56O 

a550

Feb.

h530 

a480 

a440 

a500 

a700

a800 

a750 

3700 

a680 

3640

3620 

a600 

a590 

575 

585

618 

629 

624 

629 

651

640 

634 

646 

756 

1,140

1,410 

1,430 

1,400

Month

Octo 

Nove 

Dece

Ca

janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 194£ 

ary

uary. ...................................

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

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

Mar.

1,230 

,140 

,100 

,O50 

,140

,330 

,220 

,150 

,080 

,010

954 

846 

822 

882 

828

834 

,420 

,930 

,630 

,440

,330 

,370 

,310 

,290 

,28O

,220 

,180

,090 

,010 

,040 

1,110

Apr.

1,440

2,020 

1,940 

1,710 

1,680

1,750 

1,940 

2,110 

2,170 

2,240

2,280 

2,560 

3,080 

3,190 

3,010

3,080 

3,600 

3,750 

3,580 

3,700

4,290 

4,800 

4,220 

3,700 

4,030

4,050 

4,120 

3,890 

3,680 

3,520

Secondfoot-days

20,924 

18,024 

16,994

642,413

19,848 

20,397 

36,266 

91,130 

160,540 

200,110 

103,400 

35,472 

39,228

762,333

May

3,750 

3,760 

3,530 

3,420

3,330

3,200 

3,090 

3,180 

3,060 

2,350

2,690 

3,420 

4,430 

5,630

6,400

6,550 

6,960 

6,650 

5,750 

5,310

5,460 

6,480 

7,600 

7,620 

6,960

6,440 

6,720 

6,870 

6,840 

6,540 

6,550

Maximum

1,330 

1,130 

1,430

9,660

1,310 

1,430 

1,930 

4,800 

7, (320 

8,990 

7,240 

1,630 

2,530

8,990

June

6,680 

7,000 

6,770 

6,720 

7,080

7,540 

7,690 

6,690 

5,720 

5,180

5,180 

5,560 

5,510 

5,400 

5,700

5,980 

6,330 

6,420 

6,800 

7,570

8,720 

8,990 

8,510 

7,690 

6,750

6,070

5,930 

6,190 

6,650 

7,090

July

7,240 

7,190 

6,720 

6,310 

5,900

5,670 

5,110 

4,100 

3,740 

3,620

3,540 

3,260 

3,210 

3,740 

3,530

3,220 

2,290 

2,150 

2,060 

2,OOO

1,940 

1,870 

1,820 

1,790 

1,750

1,710 

1,670 

1,630 

1,590 

1,550 

1,480

Minimum

510 

445

345

345

445 

440 

822 

1,440 

2,350 

5,180 

1,480 

894 

722

345

Aug.

,420 

,380 

,370 

,420 

,500

,630

,430 

,340 

,280 

,240

,210 

,200 

,170 

,130 

,100

,110 

,030 

,020 

990 

960

942 

930 

1,010 

1,030 

1,080

960 

936 

930

924 

906 

894

Mean

675 

601 

548

1,760

640 

728 

1,170 

3,038 

5,179 

6,670 

3,335 

1,144 

1,308

2,089

Sept.

870 

870 

864 

912 

912

912 

918

984 

1,260 

1,080

828 

762 

768 

786 

786

734 

722 

734 

734 

792

1,670 

1,670 

1,940 

2,220 

2,330

2,370 

2,530 

2,450 

2,410 

2,410

Runoff In 

acre-feet

41,500 

35,750 

33,710

1,274,000

39,370 

40,460 

71,930 

180,800 

318,400 

396,900 

205,100 

70,360 

77,810

1,512,000

a No gage-height record; discharge computed on basis of weather records and records for other statlons In P3yette River Basin.

h Computed from st3ff-gage reading.
PAYETTE RIVER BASIN 165

Payette River near Horseshoe Bend, Idaho

Location.--Water-stage recorder, lat. 43°56', long. 116°11'30", In SW^SWir sec. 14, T. 

V J)., R. 2 E., 100 feet east of tracks of Idaho Northern branch of Oregon Short Line 

Railroad and l| miles north of Horseshoe Bend. Datum of gage Is 2,623.5 feet above 

mean sea level (levels by Corps of Engineers).

Drainage area.--2,830 square miles.

Records available. November 1912 to September 1916, July 1919 to September 1950. February lyub to November 1912 at site 2 miles upstream.

Average discharge.--39 years (1907-15, 1919-50), 3,038 second-feet.

Extremes. Maximum discharge during year, 12,200 second-feet June 22 (gage height, 6.96 

reet); minimum, 587 second-feet Dec. 11 (gage height, 0.81 foot).

1906-16, 1919-50: Maximum discharge, 22,100 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 period of ice effect or no gage-height record, 

which are good. Flow regulated by Deadwood Reservoir (see p. 168 ), Ppyette Lake (see 

P. 171 ), Lake fbrk Reservoir (see p. 178 ) and Cascade Reservoir (see p. 173 ). Several 

diversions from tributaries above station for irrigation.

Revisions.--W 533: Drainage area.

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

Day

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

2,130 

1,990 

1,810 

1,700 

1,990

1,890 

1,390 

1,140 

1,150 

1,030

1,000 

1,000 

980 

980 

926

863 

899 

BOO 

845 

827

818 

713 

800 

827 

728

872 

881 

872 

809

908 

736

Nov.

744 

854 

792 

720

671

760 

890 

926 

1,020 

1,140

1,020 

980 

953 

953 

935

899 

863 

776 

752 

736

706 

699 

BIB 

, 190 

,310

,080 

,100 

,570 

,370 

, 140

Dec.

1,950 

1,670 

1,430 

1,150 

1,260

1,280 

1,170 

1,100 

1,060 

962

768 

736 

899 

980 

854

944 

971 

908 

890 

*776

699 

a880 

a920 

a900 

a880

3872 

a920

a940 

a940 

a920 

868

Jan.

880 

900 

840 

790 

840

860 

900 

900 

870 

820

830 

830

840 

840 

820

840 

960 

3980 

a ,000 

a ,200

,600 

,000 

,900 

,700 

,300

,150 

,150 

,150 

,100 

,050 

,000

Feb.

a950 

a940 

870 

a900 

1,100

1,400 

1,300 

,200 

,140 

* ,080

,040 

,040 

,040 

,050 

,080

,090 

,140 

,240 

,280 

,310

,330 

,340 

,390 

,510 

,020

,520 

,730 

,810

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194E

St. .....................................

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

Mar.

2,770 

2,330 

1,940 

1,860 

2,030

2,260 

2,110 

2,000 

1,870 

1,770

1,650 

1,460 

1,430 

1,510 

1,450

 1,480 

2,360 

3,240 

2,950 

2, 600

2,370 

2,360 

2,240 

2,240 

2,190

2,070 

2,020 

1,890 

1,760 

1,770 

1,850

Apr.

3^ 

3, 

2, 

2,

3,

4, 

4, 

5, 

5,

5, 

5,

6, 

6, 

5,

6, 

6, 

7, 

6, 

6,

7, 

8, 

7, 

6, 

7,

6, 

7, 

6,

E, 

6,

Secondfoot-days

34,304 

23,367 

31,497

1,150,878

32,840 

37,840 

63,830 

172,820 

245,440 

253,250 

162,130 

104,230 

92,960

1,259,508

260 

160 

160 

840 

900

540 

250 

630 

150 

310

350 

790 

510 

560 

270

250

920 

110 

830 

990

640 

370 

620 

700 

040

990 

090 

760 

510 

320

May

6,670 

6,790 

6,400 

6,180 

6,050

5,860 

5,670 

5,730 

5,710 

4,930

5,230 

6,030 

7,270 

8,720 

9,610

9,790 

10,200 

9,770 

8,720 

8,200

8,370 

9,400 

10,700 

10,800 

10, 100

9,400 

9,530 

9,220 

8,500 

7,980 

7,910

Maximum

2,130 

1,570 

1,950

13,100

2,000 

2,810 

3,240 

8,370 

10, 800 

12,000 

10,300 

3,600 

3,700

12,000

June

8,05O 

8,370 

8,100

8,000 

8, 400

8,870 

9,170 

8,220 

7,130 

6,490

6,450 

6,790 

6,810 

6,630 

6,880

7,180 

7,600 

7,790 

7,810 

8,620

10,800 

12,000 

11,600 

10,600 

9,740

9,000 

8,840 

9,020 

8,970 

9,320

July

a9,900 

alO,300 

a9,BBO 

9,320 

8,970

8,720 

8,240 

6,050 

5,920 

5,230

5,030 

4,830 

4,710 

5,330 

4,930

4,550 

3,260 

3,120 

3,460 

3,440

3,340 

3,310 

3,380 

3,420 

3,360

3,360 

3,340 

3,380 

3,390 

3,360 

3,300

Aug.

3,300 

3,360 

3,420 

3,490 

3,470

3,600 

3,380 

3,260 

3,260 

3,240

3,300 

3,340 

3,300 

3,260 

3,220

3,410 

3,470 

3,280 

3,220 

3,260

3,260 

3,250 

3,360 

3,550 

3,580

3,440 

3,440 

3,420 

3,390 

3,360 

3,340

Minimum Mean

713 1,107 

671 946 

699 1,016

650 3,153

790 1,059 

870 1,351 

1,430 2,059 

2,260 5,761 

4,930 7,317 

6,450 8,442 

3,120 5,230 

3,220 3,362 

2,760 3,099

671 3,451

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records and records for 

near Emmett and for North Pork and South Fork Payette River near Banks. 

Note. Stage -discharge relation affected by Ice Jan. 1 to Feb. 14,

Sept.

3,330 

3, 280 

3,280 

3,330 

3,330

3,310 

3,240 

3,340 

3,700 

3,490

3,190

3,070 

3,060 

3,070 

3,O60

3,010 

2,980 

3,000 

2,970 

2,940

3,040 

2,940 

3,130 

2,980 

2,910

2,780 

2,880 

2,8OO 

2,760 

2,760

Runoff In 

acre-feet

68,040 

56,270 

62,470

2,283,000

64, 140 

75,050 

126,600 

342,800 

486,800 

502,300 

321,600

206,700 

184,400

2,498,000

station
166 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. 1 W., 

three-eighths of a mile downstream from Black Canyon Dam and 5 miles northeast of Emmett.

Records available.--June 1925 to September 1950. 

Average discharge.--25 years, 2,895 second-feet.

Extremes. Maximum discharge during year, 12,600 second-feet May 23 (gage height, 9.36 

reet); minimum, 35 second-feet Dec. 22 (gage height, 0.86 foot); minimum daily, 270 

second-feet Dec. 1.

1925-50: 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.

dam

Remarks.--Records excellent. Diversions above station for irrigation. Flow regulated by 

diversion at and operation of gates in Black Canyon Darn and by Cascade Reservoir (see 

p. 173), Deadwood Reservoir (see p. 168 ), Payette Lake (see p. 171 ), and Lake Pork 

Reservoir (see p.

Cooperation. Gage-height record collected in cooperation with Bureau of Reclamation. 

Revisions (water years).--W 1153: 1936(m), 1948(m).

Rating table, water year 1949-50 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used July 1 to Sept. 30)

1.8 315 3.0 1,410 6.0 5,710 

2.1 510 4.0 2,620 7.0 7,570 

2.5 870 5.0 4,010 8.7 11,100

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,840 

1,820 

1,480 

1,400 

1,470

1,640 

1,290 

850 

707 

910

752 

850 

920 

890 

1,170

1,100 

1,010 

1,060 

960 

981

981 

930 

860 

1,070 

1,110

992 

1,080 

1,140 

1,080 

992 

1,110

Nov.

920 

970 

1,070 

1,060 

930

662 

1,050 

1,070 

1,150 

1,240

1,280 

1,190 

1,090 

1,100 

1,220

1,180 

1,210 

1,040 

1,010 

930

920 

910 

1,080 

1,280 

1,280

1,320 

1,060 

1,330 

1,570 

707

Dec.

270 

482 

1,210 

1,290 

1,180

1,330 

1,230 

1,160 

1,120 

1,080

870 

714 

836 

1,010 

1,000

897 

1,140 

1,100 

910 

861

697 

761 

1,100 

1,180 

943

762 

953 

1,050 

981 

1,040 

926

Jan.

983 

953 

810 

aSOO 

a850

891 

970 

956 

1,050 

976

981 

915 

907 

942 

805

829 

918 

973 

1,000 

1,240

1,700 

2,220 

3,130 

2,380 

1,830

1,480 

1,460 

1,470 

1,450 

1,140 

1,010

Feb.

970 

970 

1,010 

635 

1,070

2,080 

,880 

,550 

,410 

,430

,220 

,330 

,260 

,310 

,470

,580 

,570 

,670 

,630 

,670

,670 

,650 

,700 

,250 

,040

3,460 

3,780 

3,640

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc

Aprl 

MRV

June 

July 

Augu 

Sept

Wa

lendar year 194

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

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

Mar.

3,420 

3,020 

2,720 

2,610 

2,680

3,110 

2,760 

2,610 

2,480 

2,400

2,230 

1,930 

1,840 

1,900 

1,890

1,790 

3,380 

4,920 

5,030 

4,090

3,620 

3,010 

3,080 

3,390 

3,250

2,880 

2,820 

2,620 

1,750 

890 

910

Apr.

1 

3 

4, 

3 

3

3

4 

4 

5 

5,

5,

6, 

7, 

7, 

7,

6, 

7, 

7, 

7, 

7,

8, 

8, 

8, 

7, 

1,

7, 

6, 

6, 

6, 

5,

Secondfoot-days

34,445 

32,829 

30,083

1,052,733

38,009 

48,905 

85,030 

184,230 

228,900 

233,910 

122,760 

63,350 

62,400

1,164,851

640 

780 

010 

290 

250

710 

850 

970 

660 

850

890 

360 

190 

380 

020

920 

570 

810 

570 

590

130 

970 

130 

000 

100

110 

960 

510 

160 

850

May

6,340 

6,660 

6,160 

5,890 

5,710

5,440 

5,260 

5,210 

5,280 

4,560

4,660 

5,440 

6,700 

7,990 

9,140

9,220 

9,500 

9,350 

8,150 

7,570

7,650 

8,570 

10, 000 

10,100 

9,520

8,730 

8,870 

8,650 

7,970 

7,340 

7,270

Maximum

1,840 

1,570 

1,330

13, 500

3,130 

3,780 

5,030 

8,970 

10, 100 

11,100 

9,160 

2,340 

2,430

11,100

June

7,380 

7,810 

7,480 

7,440 

7,750

8,170 

8,630 

7,870 

6,770 

5,960

5,800 

6,230 

6,300 

6,090 

6,250

6,700 

7,190 

7,340 

7,320 

7,870

9,920 

11, 100 

10,700 

9,830 

9,140

8,170 

7,990 

8,170 

8,130 

8,410

July

8,710 

9,160 

8,770 

8,270 

7,910

7,570 

7,230 

5,220 

4,490 

4,120

3,780 

3,550 

3,340 

3,960 

3,530

3,350 

2,110 

1,820 

2,010 

2,080

1,970 

1,910 

1,960 

2,030 

1,990

1,930 

1,960 

2,010 

2,050 

2,030 

1,940

Aug.

1,930 

2,000 

2,080 

2,150 

2,140

2,340 

2,180 

2,000 

2,010 

1,990

2,060 

2,080 

2,110 

2,070 

2,010

2,080 

2,190 

2,000 

1,890 

1,900

1,940 

1,850 

1,910 

2,150 

2,190

2,060 

2,050 

2,050 

2,000 

1,990 

1,950

Minimum Mean

707 1,111 

662 1,094 

270 970

270 2,884

800 1,226 

635 1,747 

890 2,743 

1,640 6,141 

4,560 7,384 

5,800 7,797 

1,820 3,960 

1,850 2,044 

1,930 2,080

270 3,191

Sept.

2,000 

1,930 

1,950 

1,960 

1,990

1,990 

1,930 

2,060 

2,420 

2,430

2,110 

2,060 

2,060 

2,090 

2,080

2,090 

2,070 

2,08O 

2,090 

2,070

2,190 

2,070 

2,210 

2,210 

2,050

1,970 

2,110 

2,080 

2,000 

2,050

Runoff In 

acre-feet

68,320 

65,120 

59,670

2,088,000

75,390 

97,000 

168,700 

365,400 

454,000 

464,000 

243, 500 

125,700 

123,800

2,311,000

a No gage-height record; 

near Payette.

discharge'computed on basis of weather records and records for station
PAYETTE RIVER BASIN 167

Payette River near Payette, Idaho

Location.--Water-stage recorder, lat. 44°02'30", long. 116°55'30", in SWij sec. 10, T.

8 H., R. 5 W., at highway bridge, 1$ miles south of Payette. Datum of gage is 2,138.44 

feet above mean sea level, unadjusted.

Records available.--August 1935 to September 1950. January 1895 to July 1897 (incomplete) 

at site v miles downstream.

Average discharge. 15 years (1935-50), 3,027 second-feet.

Extremes.--Maximum discharge during year, 11,000 second-feet May 23 (gage height, 9.37 

feet); minimum, 504 second-feet Dec. 2 (gage height, 4.32 feet); minimum daily, 516 

second-feet Dec. 2.

1895-97, 1935-50: 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 good. Many diversions above station for irrigation. Plow regulated by 

Black Canyon Dam and reservoirs on tributary streams.

Rating table, water year 1949-50, except periods of ice effect

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

(Shifting-control method used July 1 to Sept. 30)

4.4 600 7.0 4,900 

4.8 1,140 8.0 7,090 

5.4 2,030 9.3 10,700 

6.0 3,020

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,700 

1,720 

1,610 

1,400 

1,480

1,620 

1,660 

1,340 

1,070 

1,210

1,150 

1,140 

1,140 

1,140 

1,320

1,280 

1,240 

1,270 

1,070 

1,370

1,310 

1,280 

1,210 

1,150 

1,270

1,250 

1,280 

1,270 

1,300 

1,270 

1,240

Nov.

,170 

,130 

,240

,270 

,240

,060 

,150 

,360 

,440 

,540

,620 

,480 

,460 

,380 

,490

,520 

,500 

,430 

,320 

,300

,210 

,200 

,280 

,520 

,550

,670 

,500 

* ,400 

,980 

,320

Dec.

769 

516 

1,110 

1,540 

1,500

1,550 

1,520 

1,420 

1,420 

1,370

1,220 

1,000 

958 

1,170 

1,250

1,250 

1,240 

1,580 

1,200 

1,210

1,170 

902 

1,220 

1,440 

1,280

1,100 

1,060 

1,280 

1,300 

1,220 

1,200

Jan.

1,180 

1,240 

1,180 

1,220 

1,030

1,170 

bl,250 

bl,250 

bl,300 

1,240

1,240 

1,170 

bl,150 

bl,150 

bl,200

bl,050 

bl,150 

bl,200 

1,280 

1,340

1,500 

2,450 

*4,350 

3,670 

2,240

1,700 

1,760 

1,680 

1,540 

al,400 

al,250

Feb.

al,250 

al,250

al,250 

al,200 

al,200

f2,030 

3,200 

2,240 

1,900 

1,940

2,050 

1,600 

1,610 

1,700 

2,020

2,060 

2,020 

2,220 

2,220 

*2,170

2,060 

2,000 

1,970 

2,480 

3,380

3,950 

4,100 

4,040

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

3,800 

3,510 

3,110 

2,970 

2,880

3,340 

3,220 

2,870 

2,820 

2,680

2,560 

2,270 

2,030 

2,060 

2,090

2,090 

3,060 

5,200 

5,750 

5,140

4,160 

3,540 

3,650 

3,630 

4,230

3,420 

3,180 

3,040 

2,710 

1,340 

1,240

Apr.

1, 

3, 

4, 

3, 

3,

3, 

4, 

5, 

5,

6,

5,

6, 

7 

7 

7,

6 

7 

7 

7 

7

7 

8 

8 

6 

6

6, 

6 

5,

5, 

5,

Secondfoot-days

40,760 

41,730 

37,965

1,029,385

47,530 

61,110 

97,590 

179,070 

207,070 

219,830 

109,880 

52,430 

58,110

1,153,075

210 

260 

270 

740 

380

890 

900 

100 

770 

060

950 

350 

020 

630 

310

950 

310 

760 

580 

430

710 

370 

100 

850 

370

210 

150 

820 

480 

140

May

5,310 

6,300 

5,820 

5,440 

5,230

5,370 

5,020 

4,860 

4,840 

4,390

3,890 

4,270 

5,200 

6,480 

7,580

8,050 

8,340 

8,260 

7,500 

6,970

6,990 

7,580 

8,890 

9,620 

9,210

8,400 

8,100 

8,180 

7,630 

6,800 

6,550

Maximum

1,720 

1,980 

1,580

12,800

4,350 

4,100 

5,750 

8,370 

9,620 

10 , 600 

8,320 

2,000 

2,350

10, 600

June

6,570 

6,800 

6,800 

6,640 

6,800

7,230 

8,260 

8,050 

6,900 

6,040

5,710 

5,910 

6,170 

5,990 

5,950

6,260 

6,570 

6,850 

6,SOO 

6,990

8,610 

10, 200 

10,600 

9,770 

9,150

8,100 

7,560 

7,480 

7,460 

7,610

July

7,890 

8,320 

8,240 

7,840 

7,480

7,070 

6,760 

5,650 

3,890 

4,010

3,380 

3,270 

3,180 

3,220 

3,270

2,940 

2,270 

1,420 

1,380 

1,610

1,580 

1,490 

1,430 

1,500 

1,560

1,490 

1,500 

1,460 

1,580 

1,600 

1,600

Aug.

1,520 

1,550 

1,620 

1,720 

1,820

2,000 

2,000 

1,780 

1,700 

1,700

1,700 

1,780 

1,760 

1,740 

1,640

1,580 

1,720 

1,730 

1,560 

1,520

1,580 

1,600 

1,560 

1,660 

1,800

1,790 

1,680 

1,720 

1,670 

1,620 

1,610

Minimum Mean

1,070 ,315 

1,060 ,391 

516 ,225

516 ,820

1,030 ,533 

1,200 ,182 

1,240 ,148 

1,210 ,969 

3,890 ,680 

5,710 ,328 

1,380 ,545 

1,520 ,691 

1,610 ,937

516 3,159

Sept.

1,610 

1,610 

1,620 

1,610 

1,620

1,670 

1,640 

1,700 

1,940 

2,350

2,130 

1,960 

1,910 

1,910 

1,940

1,970 

1,940 

1,960 

2,030 

2,000

2,020 

2,020 

2,080 

2,270 

2,060

2,050 

2,050 

2,170 

2,130 

2,140

Runoff In 

acre-feet

80,850 

82,770 

75,300

2,042,000

94,270 

121,200 

193,600 

355,200 

410,700 

436,000 

217,900 

104,000 

115,300

2,287,000

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for station 

near Emmett.

b Stage-discharge relation affected by ice.

f Computed from partly estimated gage-height record.
168 PAYETTE RIVER BASIN

Deadwood Reservoir near Lowman, Idaho

Location.--Staff gage, lat. 44°18', long. 115°39', in SEtr 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 1950.

Extremes.--Maximum elevation observed during year, 5,335.6 feet June 20; minimum observed, 

S.yilh.O feet Oct. 6.

1935-50: 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, 

iyau. 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 of Johnson 

Creek in Salmon River Basin to Deadwood River Basin for supplemental storage in Deadwood Reservoir. Discharge of 1.75 second-feet estimated in this canal Aug. 1. Reservoir gage read once daily about 8 a.m.

Cooperation.--Gage readings furnished by Bureau of Reclamation.

Elevation, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

307.5

307.0

306.6

306.0

305.4

305.0

3U5.1

305.15

305. E

305.25

305.3

305.35

305.4

305.45

305.5

305.6

305.65

305.7

305.75

305.8

305.85

305.9

305.95

306.0

306.05

306.1

306.15

306.2

306.25

306.3

306.35

Nov.

306.4

306.45

306.5

306.55

306.6

306.65

306.7

306.75

306.8

306.9

306.95

307.0

307.05

307.1

307.15

307.2

307.25

307.3

307.35

307.4

307.45

307.5

307.6

307.7

307.75

307.8

307.85

307.95

308.0

308.05

-

Dec.

307.7

307.65

307.7

307.75

307.8

307. a5

307.9

307.95

308.0

308.05

308.1

308.15

308.2

308.25

308.3

308.35

308.4

308.45

308.5

308.55

308.1

308.65

308.7

308.75

308.8

308.85

308.90

308.95

309.0

309.05

309.1

Jan.

509.15

309.2

309.25

309.3

309.3

309.35

309.4

309.45

309.5

309.55

309.6

309.65

309.7

309.75

309.8

309.85

309.9

309.95

310.00

310.1

310.3

310.45

310.55

310.6

310.65

310.7

310.75

310.8

310.85

310.9

310.9

Feb.

310.95

310.95

311.0

311.05

311.1

311.2

311.25

311.3

311.35

311.4

311.45

311.5

311.55

311.6

311.65

311.7

311.75

311.8

311.85

311.9

311.95

312.0

312.05

312.1

312.2

312.3

312.4

312.45

_

_

-

Mar.

312.5

312.55

312.6

312.65

312.7

312 . 8

312.85

312.9

312.95

313.0

313.05

313.1

313.15

313.2

313.25

313.3

313.6

313.9

314.05

314.1

314.15

314.2

314.3

314.4

314.55

314.6

314.65

314.7

314.75

314.85

314.9

Apr.

315.0

315.1

315.2

315.3

315.4

315.50

315.65

315.8

315.9

316.05

316.2

316.35

316.5

316.65

316.8

316.9

317.05

317.2

317.35

317.55

317.8

318.0

318.2

318.4

318.05

317.5

317.0

316.5

316.0

315.5

-

May

315.0

314.5

314.05

313.6

313.1

312.6

312.1

311.6

311.1

311.3

311.55

311.9

312.3

312.7

313.2

313.8

314.0

314.1

314.3

314.45

314.6

314.8

315.2

315.7

316.1

316.8

317.6

318.4

319.05

319.8

320.5

June

321.2

321.9

322.7

323.5

324.3

325.3

326.4

327.4

328.1

328 .B

329.5

330.2

330.9

331.6

332.3

333.0

333.7

334.5

335.2

335.6

335.5

335.4

335.3

335.1

334.9

334.7

334.5

334.3

334.2

334.2

-

July

334.2

334.15

334.1

334.0

333.8

333.6

333.4

333.8

334.2

334.5

334.65

334.8

334.85

334.4

333.9

333.45

333.65

333.8

334.0

334.1

334.25

334.35

334.4

334.45

334.5

334.5

334.55

334.55

334.55

334.55

334.55

Aug.

334,55

334.55

334.5

334,55

334.55

334.6

334.6

334.55

334.55

334.5

334.5

334.5

334.5

334.5

334.5

334.45

334.45

334.45

334.4

334.4

334.4

334.35

334.3

334.2

334.05

334.0

334.0

333.9

333.85

333.8

333.7

Sept.

333.65

333.6

333.5

333.4

333.25

333.1

333.0

332,85

332.75

332.7

332.75

332.8

332.8

332.8

332.8

332.8

332.85

332.9

333.0

333.05

332.45

331.85

331.1

330.1

329.0

327.95

326.85

325.6

324.4

323.2

-

Note. Add 5,000 feet to obtain elevation above mean sea level.
PAYETIE RIVER BASIN 169

Deadwood River below Deadwood Reservoir, near Lowman, Idaho

Location. Water-stage recorder, lat. 44°18 i , long. 115°39 I , in NE£ sec. 17, T. 11 N., R. 

? K., 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. Datum of gage is 5,181.52 feet above mean sea level (levels by 

Bureau of Reclamation).

Drainage area.--108 square miles.

Records available.--October 1926 to September 1950.

Ave;rage discharge.--23 years (1927-50), 199 second-feet.

Extremes. Maximum discharge during year, 1,760 second-feet June 20, Sept. 26; maximum 

gage height, 5.23 feet June 20; minimum not determined, occurred during period of no 

gage-height record when gates in dam were closed.

1926-50: 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 1930-50 when gates in dam were closed.

Remarks.--Records good except those below 10 second-feet, which are poor. Flow regulated 

since Nov. 2, 1930, by Deadwood Reservoir (see preceding page). During late fall of 

1936, Bureau of Reclamation cut a transmountain canal to divert a small flow from a 

tributary of Johnson Creek in Salmon River Basin to Deadwood River Basin for supplemental storage in Deadwood Reservoir. Discharge of 1.75 second-feet estimated in this 

canal Aug. 1.

Revisions [water years).--W 1123: 1943.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

645 

594 

570 

629 

594

183 

a5 

a6 

h6

hh6

} "

I a5

h5

1"

h5 

a.5 

a5

Nov.

> a5 

h5

} -

a4

a4 

h4

I'

h4

} -

a5

a5

h5 

a.5 

a4 

a4 

426

Dec.

384

a4 

a4 

h4

1-

h4

} - 

} *

h5

} - 

} "

h4

I"

h4

Jan.

)"

h4

} - 

} -

h3

a3

a3

a4 

a4 

a5 

a5 } :

} -

h4

} -

Feb.

} -

h4

I"

h4

I"

h4 )"

f a5

h5

3.5

a.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lender year 1949 

ary

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

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

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

Mar.

> a.5 

h5

} - 

} -

h4

} "

} -

h5 

a5 

h5

I"

Apr.

h5

I"

h5

1- 

I 

h' h5 

a.5 

443 

848

941 

946 

946 

941 

936

Secondfoot -days

3,352

555 

511

73,198

124 

118 

148 

6,116 

13,759 

15,559 

11,812 

4,926 

18,699

75,679

May

931 

931 

926 

921 

916

916 

916 

912 

351

} -

h5 

a5 

a5

234 

395 

426 

504 

567

567 

574 

578 

582 

327

206 

209 

209 

209 

211 

211

Maximum

645 

426 

384

1,240

946 

931 

1,570 

1,080 

262 

1,750

1,750

June

211 

216 

216 

218 

73

1 -

h6

> a6

19 

203 

457 

1,290

,570 

,540 

,450 

,360 

,250

,170 

,110 

,060 

,040 

,040

Minimum

July

,040 

,020 

,020 

,OOO 

,000

1,000 

296 

h5 

53 

144

209 

257 

826 

1,080 

1,000

295 

a5 

a5 

13 

33

59 

93 

119 

136 

148

154 

160 

162 

162 

160 

158

"

-

5 

106

-

Aug.

158 

158 

158 

162 

167

173 

169 

165 

158 

152

148 

146 

144 

138 

173

119

117 

113 

109 

106

106 

173 

213 

262 

211

167 

165 

171 

175 

175 

175

Mean

108 

18.5 

16.5

201

4.0 

4.2 

4.8 

204 

444 

519 

381 

159 

623

207

Sept.

182 

191 

225 

254 

260

262 

293

331 

227 

69

a3

32 

69 

78 

36

h3

} -

675

1,020 

1,080 

1,460 

1,640 

1,640

1,700

1,750 

1,740 

1,740 

1,730

Runoff In 

acre-feet

6,650 

1,100 

1,010

145,200

246 

234 

294 

12,130 

27,290 

30,860 

23,430 

9,770 

37,090

150, 100

a No gage-height record; gates closed! discharge interpolated or computed on basis of 

records.

h Computed from staff-gage reading.

_, 253646 O - 53 - 12 '
PAYETTE RIVER BASIN 

Deadwood River near Lowman, Idaho

Location.--Water-stage recorder, lat. 44°05', .long. 115°40', in sec. 29, T. 9 N., R. 7 

&., 700 feet upstream from mouth and 2j miles west of Lowman. Altitude of gage, 3,680 

feet (from topographic map).

Records available.--August 1921 to September 1950. 

Average discharge.--29 years, 378 second-feet.

Extremes.--Maximum discharge daring year, 2,460 second-feet June 20 (gage height, 4.17 

reetj; minimum, 43 second-feet Nov. 21, Dec. 4 (gage height, 0.94 foot), but may have 

been less during period of ice effect; minimum daily, 55 second-feet Dec. 11.

1921-50: 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 

Nov. 4, 1935 (gage height, 0.83 foot); minimum daily, 34 second-feet Nov. 4, 1935.

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

which are poor. Plow regulated since Nov. 2, 1930, by Deadwood Reservoir (see p. 168). 

Small amount of water diverted from tributary of Johnson Creek in Salmon River Basin 

to Deadwood River Basin during year.

Revisions. W 633: Drainage area.

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

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

724 

688 

660 

688 

732

529

112 

87 

82 

89

82 

82 

82 

78 

77

75 

73 

72 

72 

73

73 

72 

72 

70 

72

72 

70 

73 

82 

77 

73

Nov.

72

70 

70 

70 

70

68 

68 

75 

87 

89

80 

378 

a77 

a76 

a75

a74 

*72 

70 

67 

60

58 

67 

97 

131 

112

95 

117 

156 

108 

262

Dec.

702 

97 

68 

62 

110

82 

73 

67 

68 

68

55 

65 

80 

70 

70

80 

80 

80 

*75 

70

80 

76 

75 

75 

75

75 

70 

70 

70 

70 

a70

Jan.

a70 

a70 

a60 

a60 

a60

a65 

a70 

a70 

65 

60

70 

70 

70 

65 

65

68 

7O 

70 

70 

90

120 

125 

105 

95 

80

75 

80 

80 

75 

70 

*65

Feb.

65 

60 

65 

85 

90

90 

80 

75 

75 

70

70 

70 

70 

7O 

70

75 

75 

75 

75 

75

78 

78 

82 

93 

140

160 

155 

150

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1949 

ary

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

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

Mar.

147 

134 

129 

124 

134

144 

131 

129 

119 

114

110 

89 

93 

*112 

102

99 

134 

134 

124 

112

108 

112 

108 

110 

108

104 

106 

99 

95 

102 

110

Apr.

142 

203 

177 

164 

164

174 

196 

214 

218 

228

240 

291 

354 

364 

354

385 

458 

469 

464 

493

580 

633 

561 

754 

1,190

,310 

,320 

,290 

,270 

,260

Secondfoot-days

5,963 

2,671 

2,928

147,470

2,328 

2,416 

3,576 

15,920 

37,920 

40,569 

20,515 

8,516 

20,601

163,923

May

,290 

,280 

,260 

,230 

,220

,180 

,180 

,190 

853 

364

446 

587 

784 

986 

1,100

1,240 

1,480 

1,400 

1,320 

1,360

1,450 

1,660 

1,860 

1,800 

1,490

1,300 

1,340 

1,360 

1,320 

1,3OO 

1,290

Maximum

732 

262 

702

2,510

125

160 

147 

1,320 

1,860 

2,390 

1,580 

364 

1,770

2,390

June

1,320 

1,360 

1,310 

1,320 

1,280

1,200 

1,170 

1,010 

889 

831

840 

848 

831 

823 

840

848 

864 

995 

1,260 

1,900

2,390 

2,310 

2,150 

2,020 

1,860

1,720 

1,620 

1,600 

1,580 

1,580

July

,580 

,540 

,510 

,460 

,420

1,380 

931 

391 

396 

464

518 

536 

889 

1,320 

1,230

782 

232 

210 

200 

210

232 

252 

278 

310 

319

324 

334 

324 

319 

314 

310

Minimum

70 

58 

55

-

60 

60 

89 

142 

364 

823 

200 

200 

89

55

Aug.

305 

301 

301 

324 

339

344 

324 

310 

305 

287

265 

261 

248 

244 

273

244 

218 

221 

207 

2OO

200 

224 

324 

364 

359

261 

244 

240 

257 

261 

261

Mean

192 

89.0 

94.5

404

75.1 

86.3 

115 

531 

1,223 

1,352 

662 

275 

687

449

Sept.

261 

291 

310 

349 

359

359 

380 

423 

412 

271

102 

93 

153 

164 

167

91 

89 

91 

89 

487

1,050 

1,110 

1,410 

1,610 

1,691

1,720 

1,77O 

1,770 

1,770 

1,760

Runoff In 

acre-feet

11,830 

5,300 

5,810

292,500

4,620 

4,790 

7,O90 

31,580 

75,210 

80,470 

40, 690 

16,890 

40,860

325,100

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for South Pork 

Payette at Lowman and near Garden Valley and other nearby streams.

Note.--Stage-discharge relation affected by Ice Dec. 11 to Feb. 20, Feb. 25-28.
PAYETTE RIVER BASIN 171

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 Fork Payette River, at McCall. Datum of gage is 4,982.73 

feet above mean sea level (unadjusted).

Drainage area.--144 square miles.

Records available. August 1921 to September 1950 (fragmentary prior to Nov. 23, 1943).

Extremes.--Maximum gage height during year, 6.63 feet July 22; minimum, 2.51 feet Apr.

1921-50: Maximum gage height observed, 8.75 feet July 13, 1935; minimum observed, 

0.95 foot Oct. 3, 1931.

Remarks.--Flow 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 Emmett. No diversion above station.

Cooperation.--Water-stage recorder inspected by U. S. Forest Service. 

Revisions (water years).--W 753: 1931. W 1013: Drainage area.

Gage height, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.58

2.58

2.57

2.57

2.62

.2.64

2.65

2.66

2.65

2.66

2.67

2.67

2.67

2.66

2.66

2.65

2.65

2.64

2.63

2.62

2.61

2.61

2.62

2.62

2.63

2.63

2.63

2.64

2.66

2.66

2.67

Nov.

2.68

2.68

Z.69

2.69

Z.70

2.70

2.71

2.74

2.81

2.89

2.91

2.93

2.94

2.94

2.95

2.96

2.96

2.96

2.96

2.96

2.96

2.96

3.00

3.06

3.08

3.11

3.19

3.30

3.35

3.39

-

Dec.

3.40

3.40

3.39

3.37

3.37

3.36

3.36

3.35

3.35

3.33

3.31

3.29

3.29

3.27

3.27

3.28

3.30

3.33

3.33

3.32

3.33

3.33

3.35

3.38

3.37

3.38

3.39

3.37

3.36

3.35

3.33

Jan.

3.32

3.31

3.30

3.28

3.27

3.29

3.29

3.29

3.30

3.34

3.37

3.37

3.39

3.42

3.42

3.41

3.40

3.38

3.40

3.42

3.47

3.51

3.54

3.56

3.56

3.57

3.60

3.61

3.59

3.58

3.56

Feb.

3.53

3.51

3.49

3.51

3.55

3.57

3.57

3.55

3.53

3.52

3.51

3.49

3.48

3.47

3.46

3.45

3.45

3.43

3.42

3.41

3.40

3.41

3.43

3.45

3.45

3.47

3.50

3.50

_

-

Mar.

3.50

3.50

3.51

3.51

3.52

3.55

3.54

3.53

3.54

3.55

3.55

3.53

3.52

3.52

3.51

3.51

3.56

3.59

3.60

3.60

3.58

3.59

3.59

3.60

3.59

3.57

3.57

3.56

3.54

3.50

3.35

Apr.

3.22

3.12

3.03

2.93

2.84

2.78

2.73

2.69

2.64

2.59

2.55

2.52

2.54

2.58

2.58

2.57

2.57

2.58

2.59

2.61

2.64

2.71

2.75

2.75

2.75

2.75

2.77

2.78

2.76

2.75

-

May

2.78

2.83

2.82

2.81

2.80

2.78

2.76

2.75

2.76

2.78

2.83

2.94

3.14

3.36

3.64

3.93

4.18

4.31

4.30

4.20

4.21

4.41

4.76

4.98

4.98

5.00

5.09

5.18

5.22

5.15

5.15

June

5.22

5.32

5.36

5.44

5.54

5.73

5.74

5.50

5.21

5.04

5.03

5.16

5.18

5.18

5.29

5.51

5.74

5.91

5.95

6.04

6.22

6.34

6.15

5.93

5.62

5.31

5.17

5.25

5.37

5.53

-

July

5.69

5.77

5.71

5.59

5.56

5.93

6.32

6.48

6.49

6.48

6.39

6.26

6.16

6.13

6.17

6.22

6.27

6.34

6.42

6.50

6.57

6.62

6.58

6.54

6.50

6.44

6.37

6.30

6.22

6.13

6.06

Aug.

5.97

5.89

5.81

5.73

5.68

5.67

5.64

5.63

5.61

5.61

5.60

5.60

5.59

5.58

5.57

5.56

5.54

5.53

5.52

5.49

5.47

5.44

5.41

5.40

5.38

5.36

5.34

5.32

5.30

5.28

5.26

Sept.

5.23

5.21

5.18

5.16

5.13

5.10

5.08

5.06

5.04

5.03

5.00

4.97

4.95

4.92

4.89

4.86

4.84

4.82

4.82

4.80

4.78

4.77

4.75

4.73

4.72

4.73

4.73

4.71

4.69

4.67

-
PAYETTE RIVER BASIN

North Fork Payette River at McCall, Idaho

Location.--Water-stage recorder, lat. 44°54'30", long. lie'OV'SO", in sec. 8, T. 18 N., 

R. 3 E., 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, Mpy 1919 to September 1950.

Average discharge.--39 years (1908-16, 1919-50), 350 second-feet.

Extremes.--Maximum discharge during year, 2,900 second-feet June 22 (gage height, 6.47 

 feet); minimum, 2 second-feet Oct. 25, 26 (gage height, 1.11 feet).

1908-17, 1919-50: Maximum discharge, 4,260 second-feet June 10, 1933, June 4, 1948;

maximum gage height, 7.71 feet June 4, 1948; 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 and those below 

about 10 second-feet, which are fair. Flow partly regulated by gates at outlet of 

Payette Lake (see preceding page) and several smaller lakes upstream. No diversions 

above station.

Cooperation. Water-stage recorder inspected by employee of U. S. Forest Service. 

Revisions.--W 963: Drainage area.

Rating table, water year 1949-5O (gage height, In feet, 

and discharge, in second-feet)

.8 30

2.0 

2.2 

2.4 

2.6 

2.9 

3.3

108

154

241

393

3.7 591

4.2 890

4.8 1,330

5.4 1,850

6.4 2,830

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3 

3 

3 

3 

^3

3 

3 

3 

3 

3

3 

3 

3 

3 

4

14 

4 

4 

4 

3

3 

3 

3 

3

2

3 

3 

3 

3 

3 

3

Nov.

3 

3 

3 

3 

3

3 

3

5 

7

11

12 

14

15 

15 

16

16 

16 

16 

17 

17

17 

17 

19 

24 

28

31 

45 

65 

79 

87

Dec.

90 

90 

87 

83 

82

83 

79

77 

75 

74

71 

65 

65 

60 

60

63

67 

74 

77 

71

74 

74 

77 

85 

83

85 

87 

83

80 

77 

74

Jan.

71 

68 

67 

63 

60

65 

65 

65 

67

75

83 

83

87 

95 

95

94 

90 

85 

90 

95

108 

121 

h!30 

140 

140

144 

154 

159 

149 

147 

h!32

Feb.

131 

130 

h!30 

121

135

144 

144

135 

130 

126

121 

117 

113 

111 

107

105 

103 

99 

97 

95

94 

94

97 

105 

105

108 

119 

119

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ber....... ..............................

lendar year 194£

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

Mar.

119 

119 

121 

121 

123

130 

128 

126 

128 

128

130 

130 

130 

128 

121

119 

135 

142 

147 

144

140 

144 

144 

147 

142

137 

137 

135 

130 

298 

481

Apr.

438 

402 

368 

359 

312

294 

275 

265 

251 

235

226 

216 

222 

235 

235

235 

238 

244 

248 

258

268 

290 

305 

308 

308

312 

316 

320 

316 

316

Secondfoot-days

107 

610 

2,372

124,967

3,087 

3,235 

4,604 

8,615 

28,475 

63,860 

21,971 

3,729 

1,383

142,048

May

328 

347 

343 

339 

335

328 

320 

320 

324 

335

359 

402 

476 

580

727

872 

,030 

,110 

,110 

,050

,050 

,180 

,44O 

,620 

,62O

,630 

,720 

,800 

,820 

,780 

,780

Maximum

14 

87 

90

3, 200

159 

144 

481 

438 

1,820 

2,880 

2,310 

312 

63

2,880

June

1,830

1,920 

1,970 

2,030 

2,130

2,300 

2,320 

2,100 

1,850 

1,700

1,690 

1,800 

1,810 

1,810 

1,910

2,110 

2,320 

2,480 

2,510 

2,600

2,760 

2,880 

2,700 

2,490 

2,200

1,910 

1,800 

1,860 

1,970 

2,100

July

2,250 

2,310 

2,270 

2,110 

1,230

364 

655 

1,030 

1,070 

1,060

1,030 

900 

714 

496 

359

324 

228

119 

119 

119

119 

246 

312 

308 

301

320 

332 

328 

320 

316 

312

Minimum

2

3 

60

2

60 

94 

119 

216 

320 

1,690 

119 

58 

37

2

Aug.

312 

308 

305 

305 

301

251 

170 

147 

108 

88

87 

83 

79 

74 

74

72 

72 

71 

70 

68

67 

67 

65 

63 

63

61 

61 

60 

60 

5.9 

58

Mean

35 

20.3 

76.5

342

100 

116 

149 

287 

919 

2,129 

709 

120 

46.1

389

Sept.

61 

63 

59 

58 

55

55 

54 

54 

53 

52

51 

49 

48 

46 

43

43 

42 

42

41 

40

38 

38 

38 

38 

37

37 

37 

37 

37 

37

Runoff in 

acre-feet

212 

1,210 

4,700

247,800

6,120 

6,420 

9,130 

17,090 

56,480 

126,700 

43,580 

7,400 

2,740

281,800

h Computed from staff-gage reading.

Note. No gage-height record Dec. 12-18, Dec. 20 to Jan. 22, Jan. 24-30, Feb. 

charge computed on basis of weather records and records for Payette Lake.

1, 2, 4-13) dis-
PAYETTE RIVER BASIN 

Cascade Reservoir at Cascade, Idaho

173

Eij sec. 26, T. 14 N. , R. 3

_. , _._ . ^-..-buii i roni lei u auutment 01 uam on HUI-UII rui'1 ' 

downstream from Willow Creek, and three-quarters of a miie non 

of gage is at mean sea level (preliminary, unadjusted levels).

Drainage area.--620 square miles.

Records available.--January 1948 to December 1948 (fragmentary), January 1949 to September

Extremes. Maximum contents observed during year, 314,400 acre-feet July 6 (elevation,

 4,8111.05 feet); minimum observed, 399 acre-feet Oct. 20, 27 (elevation, 4,769.6 feet).

1948-50: Maximum contents observed, that of July 6, 1950; no contents at times 

during March and September 1948.

Remarks.--Reservoir is formed by earth-fill dam completed in May 1949. Storage began

 "Nov. 7, 1947. Capacity, 703,200 acre-feet between elevations 4,766 feet (4.0 feet 

above sill of outlet tunnel) and 4,828 feet (top of spillway gates). Figures herein 

represent contents currently usable. The Bureau of Reclamation plans to limit the 

withdrawal to elevation 4,787.5 feet, retaining 50,000 acre-feet capacity as dead 

storage. Contents table computed from tables furnished by Bureau of Reclamation 

(revised 1950). Water is used for irrigation of lands in the Payette Division of the 

Boise project and for power at Black Canyon power plant near Emmett, pending construction of Scriver Creek power development and Garden Valley Reservoir. Gage read once 

daily about 8 a.m.

Couperat ion.-- Gage readings and capacity table furnished by the Bureau of Reclamation.

Contents, in acre-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

7,410

6,340

5, ZOO

4,300

3,270

2,550

2,160

1,580

1,310

1,120

770

590

520

520

770

770

590

520

458

399

720

720

880

1,245

880

520

399

675

630

1,060

1,060

Nov.

l.OSO

1,000

1,120

1,310

1,510

1,060

770

520

590

770

880

1,000

1,000

1,000

1,000

940

1,120

1,310

1,510

1,650

1,810

1,395

1,980

2,450

2,890

3,550

4,450

5,350

8,170

6,870

Dec.

6,510

6,170

5,830

5,510

5,200

4,900

4,450

4,150

3,850

3,550

3,270

2,890

2,890

2,890

2,770

2,550

2,550

2,550

2,550

2,550

2,550

2,770

2,770

2,770

2,770

2,890

2,890

2,890

2,890

2,890

2,890

Jan.

2,890

2,890

2,890

2,770

2,770

2,770

2,770

2,860

2,660

2,860

2,680

2,350

2,070

1,810

1,650

1,510

1,510

1,650

1,810

1,980

2,450

3,550

4,750

5,350

6,170

6,510

6,870

7,780

8,790

9,890

10,820

Feb.

9,890

9,000

9,000

9,890

11,060

12,310

12,830

13,360

13,360

13,360

12,830

12,310

12,830

13,090

13,900

13,900

13,900

14,180

14,460

14,460

14,180

13,900

13,900

15,030

16,800

16,200

18,710

18,710

_

-

Mar.

18,710

19,370

20,050

21,110

22,200

24,480

25,270

26,070

26,880

27,290

27,700

28,120

28,540

28,960

29.8EO

30,250

31,560

33,320

34,670

36,500

37,460

38,440

39,440

39,950

.41,500

41,820

42,510

43,100

43,530

44,080

44,740

Apr.

46,490

49,260

51,240

52,670

53,110

53,300

53,300

52,230

50,930

49,320

47,930

48,830

47,OOO

46 , 540

45,750

44,960

44, 740

44,580

44,300

44,410

44,740

45,520

46,260

46,140

46,320

45,970

48,200

46,540

45,300

44,640

-

Hay

44,410

45,020

44,740

44,740

43,920

42,610

41,660

40,200

39,040

38,150

38,05O

37,120

37,120

37,460

37,950

38,940

40,460

41,500

42,350

43,100

44,580

45,520

47,820

50,870

54,370

57,050

62,150

87,370

74,100

81,720

89,440

June

96,460

104,300

110, 900

119, 100

126,400

135,200

144,200

153,700

182,800

170,500

177,200

183,300

190/600

196,400

202,900

209,800

218,000

227,200

236,200

248,100

253,900

260,600

267,200

274,100

280,100

284,800

287,600

289,700

293,200

297,200

-

July

301,600

304,800

307,700

310,900

313,500

314,400

312,300

312,300

311,300

312,500

313,500

314,000

314,000

313,500

313,500

312,800

312,500

311,400

309,700

307,700

305,600

303,600

301,400

299,400

297,100

294,900

292,800

289,900

287,400

284,500

282,200

Aug.

279,200

276,500

273,400

270,400

267,700

266,100

263,900

281,400

258,600

255,500

252,100

248,600

245,000

241,400

238,000

233,800

229,500

225,700

221,800

217,700

213,500

209,400

205,000

200,200

195,800

191,300

186,600

182,600

178,100

173,600

169,200

Sept.

164,600

160,300

156,100

151,500

147,200

142,700

138,400

134,300

1130,600

126,700

122,600

118,700

114,500

110,100

106,000

101,700

97,950

94,070

90,070

86,130

84,200

82,400

80,470

79,810

79,390

79,560

80,390

80,470

80,800

80,970

"

Monthly elevation and contents, water year October 1949 to September 1950

Date

Calendar year ........

Water year 1949-5O...

Elevation 

(feet It

-

-

Contents 

(acre-feet)

-

1 O RrTt

1

-

Change In contents 

during month 

(acre-feet)

-

'

+72,390

T Elevation at about 8 a.m.
174 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.,

 R. "9 E., at Cascade, 285 feet downstream from Halleck and Howard mill dam, half a mile 

upstream from Beaver Creek, and lj miles downstream from Cascade Dam. Altitude of 

gage, 4,730 feet (from topographic map of Bureau of Reclamation).

Drainage area.--626 square miles.

Records available. May 1941 to September 1950.

Extremes.--Maximum discharge during year, 2,910 second-feet, July 6; maximum gage height,

 3.Ob feet June 22, July 6; minimum discharge, 14 second-feet June 18 (gage height, 0.05 

foot).

1941-50: Maximum discharge recorded, 7,320 second-feet May 10, 1947 (gage height, 

6.29 feet); minimum, 2 second-feet or less in January 1948 when stage was below intake.

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

 STafed by Cascade Reservoir (see p. 173 ), Payette Lake (see p. 171 ), Lake Fork Reservoir (see p. 178 ), and occasionally by Halleck and Howard Mill dam. Several diversions from tributaries above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7

e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

762 

653 

534 

653 

514

506 

402 

446 

207 

277

282 

237 

293 

262 

177

194 

174 

211 

189 

154

50 

224 

150 

72 

262

242 

219 

60 

215 

50 

135

Nov.

262 

154

76 

91 

181

293 

282 

166 

262 

267

252 

247 

257 

252 

242

177 

134 

134 

130 

134

137 

137 

147 

144 

123

134 

137 

137 

127 

356

Dec.

692 

722 

608 

555 

506

475 

438 

424 

409 

350

310 

298 

293 

*h293 

293

293 

293 

287 

277 

b260

252

272 

262 

272 

b260

257 

257 

247 

257 

b255 

b255

Jan.

b255 

b255 

b255 

b250 

b250

b250 

b250 

b250 

b250 

b250

b240 

b220 

b220 

b220 

b220

b220 

b220 

b220 

b220 

b250

272 

277 

277 

277 

bZ75

b275 

b275 

b275 

b275 

b275 

b275

Feb.

h270 

b270 

b270 

b270 

b270

b270 

272 

272 

272 

272

272 

272 

*277 

277 

282

310 

431 

431 

438 

490

514 

506 

506 

514 

626

751 

859 

1,120

Month

Octo 

Move 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year 1949

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

Mar.

812 

277 

277 

293 

310

310 

304 

321 

338 

304

316 

333 

310 

304 

321

338 

357 

333 

344 

344

338 

327 

333 

344 

350

344 

350 

344 

338 

293 

327

Apr.

350 

350 

357 

473 

922

1,400 

1,700 

2,060 

2,180 

2,180

2,180 

2,180 

2,100 

2,120 

2,100

2,100 

2,080 

2,060 

2,040 

2,020

2,020 

2,040 

2,020 

2,000 

2,OOO

1,970 

1,870 

1,910 

1,930 

1,890

Secondfoot-days

8,806 

5,572 

10,922

381,246

7,793 

11,584 

10, 534 

52,602 

49,689 

29,050 

54, 146 

66,970 

50,507

358,175

May

1,890 

1,870 

,860 

,820 

,8OO

,800 

,780 

,75O 

,750 

,750

,730 

,710 

,710 

,710 

,710

,730 

,770 

,770 

,800 

,8OO

,820 

,840 

,840 

,870 

,890

,730 

,630 

839 

258 

247 

215

Maximum

762 

356 

722

2,500

277 

1,120 

812 

2,180 

1,890 

2,590 

2,840 

2,590 

2,480

2,840

June

224 

272 

287 

310 

316

327 

338 

338 

338 

338

344 

350 

350 

350 

338

344 

321 

145 

232 

998

2,000 

2,590 

2,060 

2,460 

2,39O

2,430 

2,430 

2,000 

1,770 

2,060

July

,530 

,740 

,720 

,800 

,840

,820 

,320 

,250 

,600 

,250

,560 

,580 

,460 

,300 

,250

,020 

816 

,250 

,420 

,380

,380 

,510 

,680 

,700 

,68O

,680 

,630 

,750 

,750 

,710 

,770

Minimum

50 

76 

247

50

220 

270 

277 

350 

215 

145 

816 

1,640 

154

50

Aug.

1,950 

2,100 

1,990 

1,770 

1,680

1,660 

1,640 

1,710 

1,750 

1,860

1,970 

1,990 

1,990 

1,970 

2,080

2,410 

2,280 

2,120 

2,200 

2,280

2,280 

2,260 

2,560 

2,590 

2,530

2,580 

2,580 

2,560 

2,540 

2,580 

2,510

Mean

284 

186 

352

1,045

251 

414 

340 

1,753 

1,603 

968 

1,747 

2,160 

1,684

981

Sept.

2,440 

2,460 

2,480 

2,480 

2,460

2,320 

2,350 

2,340 

2,340 

2,340

2,300 

2,28O 

2,260 

2,240 

2,260

2,220 

2,200 

2,180 

2,160 

1,610

1,250 

1,300 

799 

438 

230

154 

154 

154 

154 

154

Runoff in 

acre -feet

17,470 

11,050 

21,660

756,300

15, 460 

22,980 

20,890 

104, 300 

98,560 

57,620 

107,400 

132,800 

100,200

710,400

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading.
PAYETTE RIVER BASIN 175

North Fork Payette River near Banks, Idaho

Location. Water-stage recorder, lat. 44°07', long. 116°06', in SE-J sec. 16, T. 9 N., R. 

3 E., 40 feet downstream from steel highway bridge, 2| miles north of Banks, and 3 

miles upstream from confluence with South Pork. Datum of gage is 3,081.13 feet above 

mean sea level, preliminary unadjusted elevation.

Drainage area.--933 square miles.

Records available.--April 1947 to September 1950.

Extremes. Maximum discharge during year, 3,350' second-feet Apr. 12 (gage height, 9.48 

reet); minimum, 97 second-feet Oct. 25 (gage height, 3/62 feet).

1947-50: Maximum discharge, 8,830 second-feet May 11, 1947, computed on basis of 

records for station near Smiths Perry; minimum recorded, 36 second-feet Dec. 31, 1947 

(gage height, 3.01 feet).

Remarks. Records excellent except those below about 500 second-feet, which are good. 

Flow regulated by Payette Lake (see p. 171), Lake Fork Reservoir (see p. 178 ), Cascade 

Reservoir (see p. 173 ) and occasionally by mill dam at Cascade. Many diversions from 

tributaries above station for irrigation.

Rating tables, water year 1949-50, except periods of ice effect

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

(Shifting-control method used Nov. 15 to Apr. 5, May 11-2O)

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

3.8 121 6 0 850 4.3 257 - 6.2 975 

4.1 170 6 7 1,230 4.6 332 7.0 1,400 

4.5 255 7 4 1,680 5.0 457 8.0 2,060 

4.9 372 8 2 2,270 5.6 691 9.2 3,030 

5.3 528 9 2 3,100

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

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

860 

739 

633 

562 

642

541 

532 

431 

478 

287

321 

315 

298 

318 

276

222 

233 

216 

229 

218

193 

114 

238 

194 

128

273 

255 

238 

139 

233 

120

Nov.

165

263 

187 

134 

128

208 

281 

301 

229 

324

306 

295 

289 

295 

287

276 

216 

181 

176 

174

170 

172 

197 

273 

268

220 

253

278 

241 

216

Dec.

483 

744 

665 

602 

571

532 

494 

466 

446 

390

306 

*318 

339 

312 

303

330 

295 

255 

245 

218

263 

292 

309 

276 

265

268 

276 

284 

301 

303 

b290

Jan.

b285 

b280 

b270 

b260 

b250

b260 

b270 

278 

271 

268

253 

255 

238 

224 

b220

b225 

b240 

b240 

268 

289

390 

450 

482 

454 

408

397 

386 

372 

376 

b370 

b370

Peb.

*b370 

b360 

b350 

b340 

b379

b401 

b386 

361 

359 

361

356 

349 

352 

352 

361

379 

416 

515 

528 

537

580 

593 

597 

620 

748

950 

1,150 

1,310

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1949 

apy

Mar.

1,410 

953 

678 

669 

748

758 

701 

678 

620 

589

554 

478 

507 

524 

515

*528 

692 

970 

945 

845

777 

748 

678 

674 

646

615 

615 

584 

554 

562 

567

Apr.

1,

1,

1, 

2, 

2, 

2, 

2,

2, 

3, 

3, 

3, 

2,

2, 

3, 

3, 

2, 

3,

3, 

3, 

3, 

2, 

2,

2, 

2, 

2, 

2, 

2,

Secondfoot-days

10,476 

7,003 

11,441

469,381

9,599 

14,360 

21,382 

75,286 

81,130 

53,400 

57,810 

68,020 

52,572

462,479

701 

020 

975 

870 

060

750 

210 

490 

870 

910

900 

070 

160 

060 

920

940 

050 

000 

970 

030

140 

180 

020 

800 

770

730 

750 

670 

650 

620

May

2,720 

2,770 

2,670 

2,600 

2,570

2,540 

2,490 

2,480 

2,470 

2,480

2,510 

2,590 

2,710 

2,870 

2,970

3,020 

3,010 

2,970 

2,840 

2,790

2,810 

2,910 

2,990 

2,980 

2,940

2,900 

2,850 

2,330 

1,560 

1,430 

1,360

Maximum

860 

324 

744

3,490

482 

1,310 

1,410 

3,180 

3,020 

3,050 

3,030 

2,510 

2,420

3,180

June

1,380 

1,370 

1,310 

1,330 

1,380

1,410 

1,490 

1,440 

1,320 

1,240

1,240 

1,240 

1,220 

1,180 

1,200

1,230 

1,330 

1,280 

1,010 

1,240

2,250 

3,050 

2,960 

2,940 

2,980

2,890 

2,900 

2,850 

2,400 

2,340

July

2,560 

3,020 

3,030 

2,990 

3,030

3,020 

2,980 

1,670 

2,330 

1,520

1,550 

1,600 

1,590 

1,540 

1,280

1,260 

950 

1,020 

1,450 

1,440

1,410 

1,450 

1,570 

1,620 

1,600

1,620 

1,640 

1,740 

1,790 

1,770 

1,770

Aug.

1,850 

1,970 

2,050 

2,040 

1,960

1,930 

1,900 

1,880 

1,940 

1,950

2,080 

2,100 

2,100 

2,090 

2,070

2,330 

2,400 

2,210 

2,200 

2,280

2,290 

2,300 

2,350 

2,510 

2,470

2,470 

2,480 

2,480 

2,460 

2,440 

2,440

Minimum Mean

114 - 338 

128 233 

218 369

114 1,286

220 310 

340 513 

478 690 

701 2,510 

1,360 2,617 

1,010 1,780 

950 1,865 

1,850 2,194 

251 1,752

114 1,267

Sept.

2,420 

2,380 

2,380 

2,380 

2,370

2,330 

2,320 

2,360 

2,420 

2,370

2,330 

2,310 

2,300 

2,280 

2,270

2,260 

2,250 

2,240 

2,220 

2,120

1,310 

1,240 

1,200 

653 

482

327 

280 

266 

253 

251

Runoff In 

acre-feet

20,780 

13,890 

22,690

931,000

19,040 

28,480 

42,410 

149,300 

160,900 

105,900 

114,700 

134,900 

104,300

917,300

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
176 PAYETTE RIVER BASIN

Fish hatchery diversion at McCall, Idaho

Location.--Staff gage and Parshall flume, lat. 44°54'30", long. 116°07', in sec. 8, T. 18

 N., K. 3 E., immediately below outlet from fish hatchery tanks, just above point, of return to Horth Fork Payette River, and 1 mile west of McCall.

Records available.--October 1942 to September 1950.

Extremes.--Maximum discharge observed during year, 2.1 second-feet June 6 to July 1, July

 4-10; maximum gage height observed, 0,82 foot June 21, 23, affected by backwater from 

North Fork Payette River; minimum observed, 0.5 second-foot Oct. 18, 23-26; minimum 

gage height observed, 0.32 foot Oct. 23-26.

1942-50: Maximum discharge observed, 4.8 second-feet Apr. 18-24, 26-28, May 1, 2, 

4, 5, 7-11, July 2, 4, 1943; maximum gage height observed, 1.60 feet June 11, 1948, 

affected by backwater from North Pork Payette River; no flow Sept. 22 to Nov. 7, 1943.

Remarks.--Records fair except those for period of backwater from North Fork Payette River

 or doubtful gage-height record, which are poor. 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.--Sage readings furnished by Idaho State Fish and Game Comission.

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

Day

1 

2 

3

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6

.6 

.6

.6 

.6 

.6

.6 

.6 

.5

.6 

.6

.6 

.6 

.5 

.5 

.5

.5

.6 

.6 

.6 

.6 

.7

Nov.

0.8 

.8 

.8 

.8 

.8

.8 

.9

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

.9 

.9 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

.9

.9 

.9 

.9 

.9 

.9

Dec.

0.9 

1.0 

1.0 

1.0 

1.0

.9 

.9

1.0

.9 

.9 

.9

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9 

.9

Jan.

0.9 

.9 

.9 

.9 

.9

.9 

1.0

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

Feb.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

.9

.9 

1.0 

1.0

Month

Octo 

Nove 

Dece

ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

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

lendar year 1949 

ary

St. .....................................

ter year 1 949-50 .......................

Mar.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

Apr.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.1

1.2 

1.2

1.2

1.2

1.2 

1.4 

1.4 

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.4

Secondfoot-days

18.2 

27.7 

28.4

543.5

30.3 

27.8 

31.0 

34.1 

48.5 

61.7 

59.6 

52.0 

53.1

472.4

May

1.4

!3 

.4 

.4

.4 

.4

.4

.6 

.5 

.5 

.5 

.5

.5 

.5

.6 

.6 

.6

.6 

.6 

.7 

.7 

.8

.8 

.8 

.8 

.9 

.8 

.8

Maximum

0.7 

1.0 

1.0

2.2

1.0 

1.0 

1.0 

1.4 

1.9 

2.1 

2.1 

1.8 

1.8

2.1

June

1.8 

1.8 

1.8 

1.9 

1.9

2!

2.

2. 

2. 

2. 

2. 

2.

2. 

2. 

2. 

C2. 

C2.

02. 

02. 

c2. 

c2. 

c2.

02. 

c2. 

c2. 

c2. 

02.

Minimum

July

C2.1 

2.0 

2.0 

2. 

2.

2 .

2.1

2.0 

2.0 

2.0 

2.0 

2.0

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8 

1.8

0.5 

.8 

.9

.5

.9 

.9 

.O 

.0 

.3 

.8 

.8 

.5 

.7

.5

Aug.

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.6

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.5 

1.5 

1.5

1.6

1.6 

1.6 

1.7 

1.7

1.7 

1.8 

1.8 

1.8 

1.8 

1.8

Mean

0.59 

.92 

.92

1.49

.98 

.99 

1.00 

1.14 

1.56 

2.06 

1.92 

1.68 

1.77

1.29

Sept.

1.8 

1.8 

1.8 

1.8 

1.8

1.7

1.7

1.7

1.7 

1.7 

1.8 

1.8 

1.8

1.6 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8

1.8 

.1.8

1.8 

1.8 

1.8 

1.8 

1.7

Runoff in 

acre-feet

36 

55 

56

1,080

60 

55 

61 

68 

96 

122 

118 

103 

105

935

c Stage-discharge relation affected by backwater from North Fork Payette River, or doubtful gage- 

.height record; discharge computed on basis of 1 discharge measurement and flow before and after 

period.
PAYETTE RIVER BASIN 

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

sream rom umo ree, j mes upsream rom ae or eservor a 

east of McCall. Altitude of gage is 5,140 feet (from topographic map)

Drainage area. --

Records available. --October 1945 to September 1950.

Extremes . --Maximum discharge during year, 1,310 second-feet May 28 (gage height, 7.82 

I'eet ) ; minimum, 9.4 second-feet Nov. 20 (gage height, 1.99 feet).

1945-50: Maximum discharge, 2,600 second-feet June 3, 1948 (gage height, 9.19 

feet), from rating curve extended above 1,000 second-feet by logarithmic plotting; 

minimum, 8.9 second-feet Sept. 28, 1949 (gage height, 1.89 feet).

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

which are fair. No diversion above station.

Rating tables, water year 1949-50, except periods of loe effect

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

(Shifting-control method used Oct. 1 to Mar. 28)

2.2

2.3 

2.6 

3.0 

3.5

Oct. 1 to June 21

3.9 92

4.3 125

4.8 177

5.3 252

5.8 353

June 22 to Sept. 30

498

693

895

1,140

2.5 

2.7 

2.9 

3.2 

3.6 66

5.3 

5.7

102

135

177

235

312

452

643

895

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

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct

17 

14 

12 

11 

30

24 

19 

16 

15

16

15

17 

17 

15

14

15 

14

14 

12 

14

14 

13 

13 

13 

13

13 

13 

14 

23 

17 

15

Nov.

14 

14 

14 

14 

13

13 

13 

15 

17 

15

17 

17 

17 

17 

15

16 

16 

15 

15 

14

15

16 

20 

81 

83

60 

137 

136 

79 

69

Dec.

59 

55

36 

46 

48

46 

43 

42 

*42 

b28

b30 

b32 

b34 

b32 

b32

34 

35 

36 

34 

31

34 

37 

34

32 

32

35 

36 

35 

34

34 

32

Jan

34 

33 

33 

30 

30

34 

34 

32 

30 

30

32 

33 

32 

31 

31

32 

32 

32 

33 

35

b55 

b58 

b50 

b45 

b40

35 

38 

38 

35

33 

31

Feb.

30 

30 

32 

34 

37

36 

35

34 

33 

32

31 

31 

31 

32 

*33

34

33 

32 

33 

32

30 

31 

31 

b35 

b50

b48 

b52 

b50

Unn+v^ Second 

Month foot-days

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber . . 

lendar j 

ary

ear 1949 ......

482 

997 

,150

48,626.0

h . .................. i

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

ter year 1949-50 .....

12 

22

S

,101 

982 

,232 

,773 

,390 

,195 

,387 

,317 

612

54,618

Peak discharge (base, 85O sec. -ft.). May

sec. -ft.; June 5 (10 p.m.) 1,090 sec. -ft.;

Mar.

b48 

45 

43

43 

46

46 

43 

42 

41 

40

39 

t>35 

t>36 

37 

35

38 

b50 

b45 

b42 

41

40 

39 

38 

38 

36

36 

35

34 

33 

34 

34

Maximum

30 

137 

59

1,140

58 

52 

50 

175 

778 

1,160 

895 

89 

31

1,160

Apr.

56 

71 

*56 

52 

51

56 

60 

58 

56 

57

59 

70 

82 

83 

76

84 

108 

111 

113

127

158 

175 

138 

121 

120

120 

126 

113 

106 

110

May

130 

121 

110 

103 

98

92 

91 

98 

105 

118

163 

256 

373 

526 

574

586 

574 

437 

339 

324

462 

684 

778 

667 

593

634 

707 

730 

654 

617 

646

June

684 

684 

680 

744 

840

835 

684 

552 

502 

516

605 

646 

590 

64E 

788

922 

928 

878 

835 

944

1,160 

906 

747 

680 

541

537 

666 

757 

824 

878

Minimum Mean

11 15.5 

13 33.2 

28 37.1

9.4 133

30 35.5 

30 35.1 

33 39.7 

51 92.4 

91 400 

502 740 

65 303 

22 42.5 

17 20.4

11 150

P 

sq 

m

July

895 

798 

742 

675 

634

592 

541 

469 

452 

393

317 

270 

247 

238 

219

201 

176 

163 

161 

145

133 

124 

118 

109 

100

93 

88 

83 

76 

70 

65

Aug.

62 

59 

56 

56 

86

89 

65 

56 

53 

57

49 

46 

43 

41 

39

37 

35 

34 

32 

31

30 

29 

28 

28 

29

27 

26 

25 

24

23 

22

Sept.

22 

21 

20 

20 

19

19 

18 

19

23 

21

19 

19 

19 

20 

19

20 

20 

20 

22 

20

18 

18 

17 

17 

17

29 

31

23 

21 

21

er Runoff

l e Inches Acre-feet

0.317 0.37 956 

.679 .76 1,980 

.759 .87 2,280

2.72 36.99 36,460

.726 .84 2,180 

.718 .75 1,950 

.812 .94 2,440 

1.89 2.11 5,500 

8.18 9.42 24,580 

15.1 16.88 44,020 

6.20 7.14 18,620 

.869 1.00 2,610 

.417 .47 1,210

3.07 41.55 108,300

22 (10:30 p.m.) 968 sec. -ft.; May 28 (9 p.m.) 1,310 

Tune 21 (9 p.m.) 1,260 sec. -ft.; June 30 (10 p.m.) 1,170

ec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Dec. 16 to Jan. 20, Jan. 26 to Feb. 14; Mar. 14-16; discharge computed on basis of weather records and records for station below Lake Irrigation District Canal, 

Johnson Creek at Yellow Pine, and other nearby streams.
178 PAYETTE RIVER BASIN

Lake Fork Reservoir near McCall, Idaho

Location. Staff gage and graduations on concrete gate-control structure of dam on Lake 

ForTr~Payette River, lat. 44°54',_long. 116°03', in NWijNW^ sec. 13, T. 18 N., R. 3 E.,

3 miles east of McCall. 

District).

Datum of gage is at mean sea level (levels by Lake Irrigation

Records available. April 1926 to September 1950.

Extremes.--Maximum contents observed during year, 19,040 acre-feet July 11 (elevation, 

b,lib.32 feet); practically no storage at times during fall and winter.

1926-50: Maximum contents observed, 19,740 acre-feet June 19, 1941 (elevation, 

5,118.75 feet); no storage above elevation 5,101.0 feet for long p'eriods 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 near McCall and 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 gates. Stage in reservoir was reported to be below 

5,100.0 feet Oct. 1, 8, 15, 23, and was observed as 5,099.90, 5,099.72, and 5,099.77 

feet Oct. 20, Nov. 5, Nov. 9, respectively. Gage read once daily. Time of reading 

variable. Storage figures from gage heights as observed.

Cooperation. Elevation record and capacity table furnished by Lake Irrigation District.

1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

346

Jan. Feb.

432

_

_

-

Mar. Apr.

662

Hay

.

_

_

_

-

_

_

_

_

4,906

_

_

_

-

_

_

_

-

.

_

_

14,830

-

_

14,990

14,950

_

-

June

14,770

-

-

15,08O

-

15,39O

15,390

_

_

-

15,230

15,540

15,700

15,850

16,160

17,25O

17,410

17,330

_

_

17,350

16,940

16,630

.

_

17,650

18,O50

18,520

-

July

18,850

_

19,O10

13,360

18,200

18,52O

18,85O

19,01O

19,O10

19,010

19,O4O

18,88O

18,850

18,85O

18,85O

18,770

18,600

18,440

18,280

18,13O

17,920

17,68O

17,440

17, ISO

16,940

16,660

16,240

16,O80

15,770

15,39O

15,O8O

Aug.

14,720

14,38O

14,000

13,660

13,370

13,140

13,OOO

12,78O

12,500

12,320

12,O2O

11,790

11,49O

11,270

1O,97O

10,670

1O,410

10,1OO

9,882

9,666

9,379

9,176

8,973

8,7O3

8,366

8.O28

7,777

7,525

7,210

6,895

6,594

Sept.

6,302

6,07O

5,780

5,510

5,182

5,023

4,864

4,652

4,453

4,173

4,O80

_

_

_

-

_

3,583

_

_

-

_

_

_

_

.

_

_

_

2,736

-

Monthly elevation and contents, water year October 1949 to Septe

Date

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

Elevation 

(feet)

5,105.90

(acre-feet)

2,736

Change in contents 

during month 

(acre-feet)

-8,486

-3,858
PAYETTE RIVER BASIN 179

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

^cation.--Water-stage recorder, lat. 44°54', long. 116°03', In SWi sec. 13, T. 18 N. t R.

 3 K., 300 feet downstream from diversion dam for Lake Irrigation District Canal, hall a 

mile downstream from Lake Fork Reservoir, and 3 miles southeast of McCall. Altitude of 

gage, 5,080 feet (from topographic map).

Records available.--October 1940 to September 1950.

Extremes.--Maximum discharge during year, 1,100 second-feet June 22 (gage height, 5.85 feet);

 minimum, 9.1 second-feet Oct. 4 (gage height, 2.34 feet).

1940-50: Maximum discharge, 2,120 second-feet June 3, 1948 (gage height, 7.09 feet), 

from rating curve extended above 1,200 second-feet by logarithmic plotting; minimum, 0.4 

second-foot Mar. 27, 28, 1944; minimum gage height, 1.76 feet Mar. 28, 1944.

Remarks.--Records good except those for period of no gage-height record, which are poor.

 Flow regulated by Lake Fork Reservoir (see preceding page). Lake Irrigation District 

Canal diverts above station.

Revisions (water years).--W 963: 1941.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

11 

11 

10 

9.5 

11

15 

16 

16 

15

15

16 

15 

16 

16 

16

16 

15 

15 

14 

13

12 

12 

17 

18 

18

18 

18 

18 

18 

18 

18

Nov.

18 

18 

17 

17 

17

16 

16 

16 

18 

20

20 

21 

23 

24 

24

23 

23 

23 

23 

22

22 

21 

22 

25 

36

42 

48 

59 

64 

62

Dec.

61 

52 

48 

47 

48

48 

48 

48 

*47 

46

46 

45 

45 

45 

45

45 

45 

45 

44 

44

42 

42

41 

42

41

41 

41 

40 

40 

40 

39

Jan.

39 

b39 

b39 

38 

38

38 

38 

38 

38 

38

37 

37 

37 

37 

37

37 

37 

36 

36 

37

38 

40 

43 

b45 

44

44 

43 

43 

43 

42 

42

Feb.

42 

42 

42 

41 

41

41 

41 

41 

41

41

40 

40 

40 

40 

40

41 

*42 

b42 

42 

41

b41 

42 

42

41 

41

43

45 

b46

Month

1c to 

"3ve 

Tece

Ca

Tanu 

 "?br 

^irc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 194E 

apy

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

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

Mar.

b48 

50 

50 

52 

52

53 

b53 

53 

53 

53

54 

b54 

55 

55 

55

55 

54 

55 

56 

56

55 

58 

b56 

58 

56

b55 

55 

55 

b55 

54 

54

Apr.

*54 

56 

59 

60 

61

62 

64 

66 

69 

69

7O 

72 

76 

80 

82

85 

86 

92 

96 

105

112 

123 

132 

134 

140

142 

144 

148 

150 

152

Secondfoot -days

466.5 

800 

1,391

41,237.4

r 1,218 

1,162 

1,677 

2,841 

8,322 

19,562 

6,719 

2,087 

1,332

47,577.5

May

159 

161 

161 

82

15

13 

12 

13 

13 

14

14 

15 

15 

15 

15

15 

15 

42 

166 

256

328 

468 

690 

746 

680

645 

695 

725 

774 

690 

670

Maximum

18

64 

61

1,360

45 

46 

58 

152 

774 

1,050 

894 

79 

60

1,050

June

670 

680 

655 

670 

720

828 

812 

680 

566 

480

472 

398 

364 

357 

440

660 

818 

930 

878 

918

1,030 

1,050 

884 

774 

640

367 

297 

436 

530 

558

Minimum

July

725 

894 

762 

608 

454

229 

235 

276 

282 

279

242 

159 

96 

79 

84

84 

79 

72 

82 

76

84 

86 

88 

84 

85

85 

86 

85 

80 

79 

80

9.5 

16 

39

9.5

36 

40 

48 

54 

12 

297 

72 

48 

34

9.5

Aug.

79 

78 

76 

74 

71

66 

48 

55 

66 

72

72 

72 

72 

70 

69

70 

71 

69 

69 

69

64 

64 

65 

65 

64

62 

62 

64 

65 

62 

62

Mean

15.0 

26.7 

44.9

113

39.3

41.5 

54.1 

94.7 

268 

652 

217 

67.3 

44.4

130

Sept.

60 

58 

56 

56 

55

56 

60 

55 

51 

41

36 

36 

35 

34 

36

37 

38 

38 

38 

38

39 

42 

42 

42

42

42 

42 

42 

42

43

Runoff In 

acre-feet

925 

1,590 

2,760

81,800

2,420 

2,300 

3,330 

5,640 

16,510 

38,800 

13,330 

4,140 

2,640

94,380

* Winter discharge measurement.made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Jan. 4-21, Jan. 25 to Feb. 16; discharge computed on basis of weather 

records and records for station above Jumbo Creek, near McCall, nearby streams, and Lake Fork Reservoir.
180 PAYETTE RIVER BASIN

Lake Irrigation District Canal near McCall, Idaho

Location.--Staff gage, lat. 44°54', long. 116°03', in SW£ sec. 13, T. 18 N., R. 3 E. , 600 

feet downstream from head of canal, half a mile south of Lake Fork Reservoir, and Smile 

southeast of McCall. Altitude of gage, 5,090 feet (from topographic map).

Records available.--May 1926 to September 1950.

Extremes.--Maximum discharge observed during year, 182 second-feet July 8 (gage height, 

3".86 feet); no flow for long periods.

1926-50: Maximum discharge observed, 201 second-feet June 30, July 1, 1948 (gage 

height, 4.05 feet); 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. 

Staff gage read once or twice daily. No diversion between head and station. Canal diverts from right bank of Lake Fork Payette River in SWij sec. 13, T. 18 N. , R. 3 E. , for 

irrigation of 6,800 acres of land near McCall and Norwood, in the Lake Irrigation District project.

Cooperation.--Gage readings furnished by Lake Irrigation District.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

alZ 

all 

alO 

alO

a9 

a8

8

1" 

I'

4 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

Month

Octo 

Move 

Dece

Ca

janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

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

lendar year 1949

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

Mar. Apr.

Secondfoot-days

182 

0

O

13,895

0 

0 

O 

0 

176 

3,661 

5,256 

3,433 

1,053

13,761

May

o

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0 

0

0

0 

0 

al 

al

a2 

a2 

a2 

2 

al5

21 

21 

21 

aZl 

f31 

36

Maximum

12 

0 

0

197

0 

0 

0 

0 

36 

162 

182 

167 

84

182

June

f40 

f58 

f84 

92 

f!09

117 

117 

al!7 

all? 

all?

117 

all6 

114 

125 

125

alZl 

117 

115 

f!30 

a!39

141 

141 

135 

145 

149

a!52 

154 

141 

154 

162

July

162 

al64 

165 

167 

168

172 

177 

182 

178 

176

176 

175 

174 

175 

176

175

175 

172 

172 

169

167 

164 

162 

162 

162

165 

166 

165 

164 

164 

165

Minimum

O 

0 

0

0

0 

0 

0 

0 

0 

40 

162 

81 

10

O

Aug.

167 

165 

163 

161

155

146 

138 

126 

117 

112

111 

109 

103 

102 

98

96 

94 

88 

92 

95

96 

100 

101 

99 

95

88 

85 

83 

81 

83 

84

Mean

5.9 

0

0

38.1

0 

0 

0 

0 

5.7 

122 

170 

111 

35.1

37.7

Sept.

84 

82 

81 

81 

76

72 

56 

48 

48 

43

41 

a36 

32 

a30

28

18 

al8 

al8 

al8

a!4 

a!2

al2 

a!2 

al2

12 

12 

12 

12

fio

Runoff in 

acre-feet

361 

O 

0

27,560

0 

0 

O 

0 

349 

7,260 

10,430 

6,810 

2,090

27,300

a Mo gage-height record; discharge computed on basis of inflow-outflow study of Lake Pork Reservoir, 

record of gate changes, and record for Lake Pork Payette River below Lake Irrigation District Canal.

f Computed from gage-height record which was partly computed on basis of recorder record for Lake 

Pork Payette River below Lake Irrigation District Canal.
181

Location.--Water-stage recorder, lat. 44°57', long. 116°23', in sec. 31, T. 19 N., R.

IE., 43 feet upstream from railroad bridge, 0.65 mile south of Tamarack, and 1-5- miles

upstream from Beaver Creek. Altitude of gage, 4,080 feet (by barometer). Prior to

Oct. 8, staff gage at site a quarter of a mile upstream at different datum. 

Drainage area.--S6.5 square miles.

Keeords available .--September 1936 to September 1950. 

Average discharge.--14 years, 41.6 second-feet. 

Extreme^.--Maximum discharge during year, 404 second-feet Apr. 13 (gage height, 4.50 feet);

minimum recorded, 1.6 second-feet Nov. £9 (gage height, 1.08 feet).

1936-50: Maximum discharge observed, 775 second-feet Mar. 27, 1940 (gage height,

6.00 feet, site and datum then in use); minimum observed, 1.0 second-foot Sept. 2,

1947 (gage height, 0.55 foot, site and datum then in use). 

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

indefinite stage-discharge relation, which are poor. No diversions above station.

Diurnal fluctuation caused by millpond at Tamarack. Small flow from Boulder Creek in

Salmon River Basin enters Weiser- River above station through transmountain diversion

during late irrigation season.

Rating tables, water year 1949-50, except periods of lee effect or 

Indefinite stage-discharge relation (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 7 to Nov. 13, ftpr. 21 to June 5)

Oct. 1-11

.9 

1.0

Oct. 12 to Sept. 30

2.1

142

225

350

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

7 

6

6 

6 

e8

15 

h!4 

10 

10 

9

7 

h5.7 

h6.2 

h6.2 

6.2

6.2 

6.4 

6.4 

6.2 

5.7

5.2 

5.0 

5.0 

6.2 

6.2

5.5 

5.5 

5.2 

6.7 

6.2 

5.7

Nov.

5.7 

5.7 

6.2 

5.7 

5.5

5.7 

6.4 

7.4 

10 

14

10 

8.0 

8.2 

7.7 

7.2

6.9 

6.7 

6.7 

6.7 

*6.4

6.7 

6.4 

9.1 

7.4 

9.6

8.0 

9.1 

15 

12 

8.5

Dec.

6.9 

7.7 

6.7 

6.7 

6.9

6.7 

6.4 

6.4 

6.4 

6.0

b4

5.0 

5.5 

5.5 

b6

6.0 

8.0 

6.4 

b6 

b4

6.0 

7.7 

6.0 

6.2 

b5

6 

8 

8 

7 

8 

7

Jan.

8 

7 

6

5 

5

6 

8 

10 

9

9

8 

8 

8 

7 

4

5 

*6.9 

6.7 

6.9 

8.0

12 

17

19 

17

9

13 

15 

12 

8 

10 

7

Feb.

7 

6 

5 

6 

10

16 

20 

18 

15 

11

10 

9 

8 

7 

7

8 

8 

8

9

10

10 

10 

10

*22 

29

38 

53

53

Month

Octo 

'->ve 

Oece

Ca

Janu 

-»«5br 

^rc 

4pri

June 

July 

lugu 

^pt

Wa

lendar year 194C 

ary

uary. ...................................

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

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

Mar.

52 

46 

43 

42 

46

51 

50 

49 

46 

38

39 

38 

35 

33 

31

31 

45

67 

64 

58

54 

*47 

46 

46 

44

41

39 

38 

36 

35 

36

Apr.

50 

101 

95 

83 

82

95 

114 

138 

166 

177

194 

220 

314 

33S 

287

276 

310 

318 

309 

312

337 

363 

318 

260 

242

235 

230 

205 

179 

176

Secondfoot -days

215.6 

238.6 

198.1

13,614~.3

280.5 

423 

1,366 

6,522 

5,134 

956 

298.9 

239.9 

202.9

16,075.5

May

244 

276 

235 

205 

176

158 

142 

15C 

160 

169

182 

213 

244 

258 

265

242 

223 

194 

161 

134

124 

126 

132 

126 

109

98 

90 

85 

80 

70 

63

Maximum

15 

15 

8

. 309

19

53 

67 

363 

"276 

59 

15 

19 

9.1

363

June

59 

55 

53 

49 

43

44 

49

46 

39 

36

33 

29 

27 

29

25

29 

29 

26 

27 

24

26 

25 

22 

23 

24

21 

15 

17

16 

16

July

15 

14 

14 

13 

12

12 

12 

11 

11

10

10 

10 

10 

10 

9.4

9.1 

8.8 

9.5 

8.5 

8.5

8.0 

7.4 

7.4 

7.2 

8.2

7 .2 

7.2 

7.2 

8.0 

7.4 

6.9

Minimum

5.0 

5.5 

4

3.4

4

5 

31 

50 

63 

15 

6.9 

5.7 

5.5

4

Aug.

7.2 

6.4 

6.4 

6.9 

8.5

13 

8.8 

7.7 

7.7 

19

9.4 

8.0 

7.4 

7.4 

6.9

6.4 

6.7 

6.4

e.o

5.7

6.2 

5.7 

6 .9 

7.4 

8.0

7 .7 

7.4 

7 .2 

7 .4 

7.2 

6.9

Mean

6.95 

7.95 

6.39

37.3

9.05 

15.1 

44.1 

217 

166 

31.9 

9.64 

7.74 

6.76

44.0

Sept.

6.7 

6.4 

6.4 

6.2 

6.0

6.2 

6.4 

6.0 

6.7 

6.7

6.7 

6.4 

6.4 

6.7 

5.7

6.7 

6.9 

9.1 

5.5 

8.0

6.7 

6.7 

6.4 

6.4 

6.4

7 .4 

8.5 

7 .7 

7.7 

7.2

Runoff in 

acre-feet

428 

473 

393

27,010

556 

839 

2,710 

12,940 

10,180 

1,900 

593 

476 

4O2

31,890

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

e Stage-discharge relation indefinite; discharge co 

for Mud Creek near Tamarack and other nearby streams. 

h Computed from staff -gage reading. 

Note. --No gage-height record Oct. 1-4, 6, 8-11, D

iputed on basis of weather records and records

26 to Jan. 16, Jan. 25 to Feb. 23; discharge

computed sis of weather records and records for other Weiser River stations.
182 WEISER RIVER BASIN 

Weiser River near Council, Idaho

Location.--Water-stage recorder, lat. 44°41', long. 116°29', in sec. 29, T. 16 N., R. 

1 W., 0.7 mile downstream from Cottonwood Creek, 2 miles upstream from Middle Fork, 

and 3ij miles southwest of Council.

Drainage area.--390 square miles.

Records available.--April 1937 to September 1950.

Average discharge. 13 years, 409 second-feet.

Extremes.--Maximum discharge during year, 2,950 second-feet Apr. 14 (gage height, 6.94 

i'eet); minimum daily, 36 second-feet Dec. 11.

1937-50: Maximum discharge, 6,700 second-feet Mar. 16 or 17, 1938 (gage 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.185 ) and other reservoirs. Many 

diversions above station for irrigation.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

130 

129 

123 

119 

136

142 

134 

116 

116 

111

91 

67 

61 

60 

59

58 

56 

55 

56 

55

55 

56 

56

56 

57

57 

56 

56 

58 

58 

56

Nov.

57 

58 

59 

57 

56

55 

56 

61 

102 

142

99 

109 

84 

77 

74

70 

69

68 

67 

64

*60 

61 

75 

104 

91

90 

112 

130 

104 

94

Dec.

87 

80 

69 

57 

73

74 

73 

69 

66 

59

36 

46 

60 

60 

60

62 

64 

68 

66 

45

60 

68 

72 

75 

54

67 

75 

73 

60 

68 

64

Jan.

69 

65 

50 

45 

43

60 

70 

78 

72 

74

72 

72 

70 

64

56

*64 

70 

74 

74 

84

138 

243 

265 

236 

130

160 

180 

160 

120 

140 

110

Feb.

110 

90 

84 

110 

150

200 

300 

260 

230 

22'

210 

200 

192 

183 

179

183 

175 

175 

185

201

199 

203 

205 

*339 

725

764 

910 

734

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

lendar year 194£ 

ary

uary ....................................

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

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

Mar.

610 

551 

519 

587 

814

975 

760 

660 

572 

547

475 

400 

383 

356 

370

511 

1,540 

1,490 

1,640 

1,230

1,040 

1,120 

935 

1,060 

93O

782 

760 

629 

558 

536 

569

Apr.

782 

1,180 

1,100 

950 

930

1,020 

1,130 

1,220 

1,310 

1,280

1,260 

1,440 

2,070 

2,650 

2,090

1,800 

1,910 

1,920 

1,780 

1,770

1,790 

1,940 

1,720 

1,410 

1,280

1,220 

1,180 

1,080 

970 

920

Secondfoot-days

2,495 

2,405 

2,010

131,013

3,203 

7,716 

23,908 

43,102 

36,363 

17,163 

4,024 

2,236 

1,987

146,617

May

1,140 

1,370 

1,200 

1,080 

990

905 

827 

823 

851 

885

965 

1,150 

1,430 

1,670 

1,830

1,780 

1,720 

1,530 

1,290 

1,140

1,120 

1,230 

1,350 

1,260 

1,120

1,040 

1,020 

985 

950 

880 

832

Maximum

142 

142 

87

1,930

265 

910 

1,640 

2,650 

1,830 

827 

345 

121 

80

2,650

June

827 

809 

734 

717 

717

676 

696 

621 

565 

526

530 

512 

512 

505 

533

613 

652 

617 

579 

583

656 

587 

516 

512 

468

412 

388 

373 

368 

359

July

345 

323 

291 

255 

238

219 

199 

181 

166 

148

144 

127 

106 

94 

80

69 

66 

59 

57 

57

54 

66 

80 

78 

77

75 

75 

74 

73 

74 

74

Minimum

55

55 

36

36

43 

84 

356 

782 

823 

359 

54 

55 

58

36

Aug.

72 

69 

67 

69 

82

121 

102 

87 

82 

90

88 

80 

80 

77 

74

72 

69 

67 

67 

61

60 

58 

55 

59 

61

62 

62 

63 

60 

60 

60

Mean

80.5 

80.2 

64.8

359

103 

276 

771 

1,437 

1,173 

572 

130 

72.1 

66.2

402

Sept.

60 

62 

63 

60 

59

58 

58 

60 

66 

67

67 

64 

64 

67 

66

67 

67 

66 

72 

68

67 

64 

63 

63 

64

72 

77 

80 

78 

78

Runoff In 

acre -feet

4,950 

4,770 

3,990

259,900

6,360 

15,300 

47,420 

85,490 

72,120 

34,040 

7,980 

4,440 

3,940

290, 800

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected ty Ice Dec. 11-17, 20, 21, 25, 26, Dec. 29 to J; 

Jan. 25 to Feb. 12.

'an. 20,
WEISER RIVER BASIN 183

Weiser River near Cambridge, Idaho

Location.--Water-stage recorder, lat. 44°35', long. 116°38', in NE£ sec. 1, T. 14 N., 

K. 3 W., 2^ miles northeast of Cambridge and 2=f miles upstream from Rush Creek.

Drainage area.--60S square miles.

Records available.--March 1939 to September 1950.

Average discharge.--11 years, 642 second-feet.

Extremes.--Maximum discharge during year, 4,370 second-feet Mar. 17 (gage height, 7.24 

 feet); minimum, 27 second-feet Dec. 12 (gage height, 0.66 foot); minimum daily, 47

second-feet Dec. 11.

1939-50: Maximum discharge, 6,670 second-feet Mar. 31, 1940 (gage height, 8.30

feet); minimum, 23 second-feet Oct. 1, 1943 (gage height, 0.78 foot); minimum daily,

27 second-feet Sept. 2, 3, 1940.

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

which are poor. Flow partly regulated by Lost Valley Reservoir (see p. 185 } and other 

reservoirs. Diversions above station for irrigation.

Rating table, water year 1949-5O, except periods of ice effect

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

(Shifting-control method used June 22 to Aug. 6)

0.9 49 1.7 192 3.7 1.06O 

1.0 60 2.0 273 4.5 1,610 

1.2 88 2.4 412 5.5 2,47O 

1.4 124 3.0 665 6.5 3,510

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

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

134 

141 

134 

130 

161

178 

161 

152 

143 

145

122 

100 

85 

80 

82

84 

84 

80 

82 

84

84 

84 

85 

84 

82

85 

85 

85 

88 

88 

86

Nov.

84 

84 

84 

84 

84

82 

82 

86 

128 

217

150 

161 

132 

118 

113

105 

103 

102 

98 

95

91 

93 

114 

180 

168

156 

200 

264 

187 

168

Dec.

150 

139 

118 

93 

116

126 

118 

116 

113 

100

47 

58 

103 

105 

102

105 

105 

116 

107 

60

86 

105 

116 

122 

74

90 

120 

116 

90 

109 

93

Jan.

109 

96 

72

64 

b60

91 

105 

114 

a!03

109

105 

105 

103 

93 

b80

95 

103 

*109 

107 

126

222

516 

596 

491 

a200

a250 

a35O 

a260 

a!70 

a200 

al50

Feb.

b!50 

a!30 

a!20 

a!50 

a220

318 

632 

536 

447 

397

363 

318 

304 

298

301

318 

314 

318 

338 

393

408 

408 

*382 

646 

1,410

1,540 

1,720 

1,370

Month

Octo 

Wove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ma

lendar year 1949

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

Mar.

1,110 

988 

946 

1,O6O 

1,370

1,750 

1,350 

1,160 

1,010 

976

869 

695 

670 

623 

646

964 

3,170 

2,910 

3,180 

2,260

1,840 

1,940 

1,620 

1,800 

1,620

1,350 

1,330 

1,090 

934 

898 

898

Apr.

1, 

1,

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

2, 

3, 

2,

2, 

2, 

2, 

2, 

2,

2,

2 

2 

1 

1

1 

1 

1 

1 

1

Secondfoot-da ys

3,298 

3,813 

3,218

214,004

5,354 

14,249 

43,027 

56,840 

55,120 

35,579 

8,129 

2,742 

2,020

233,389

180 

680 

560 

340 

290

380 

530 

610 

700 

660

620 

810 

430 

520

710

3OO 

390 

430 

280 

280

320 

510 

300 

910 

740

660 

620 

480 

330 

270

May

,510 

,790 

,620 

,450 

,320

,220 

,140 

,140 

,170 

,210

,320 

,580 

,990 

,390 

,650

,620 

,580 

,270 

,950 

,780

,830 

,070 

,310 

,140 

,910

,810 

,810 

,730 

,680 

,590 

,540

Maximum

178 

264 

150

3,280

596 

1 720 

3 180 

3 520 

2 650 

1 580 

726 

185 

95

3,520

June

1,570 

1,580 

,490 

,470 

,500

,500 

,450 

,290

,170 

,100

,090 

,090 

,100 

,070 

,100

,330 

,370 

,320 

,230 

,220

,320 

,240 

,O70 

,040 

982

840 

79O 

763 

752 

742

July

726 

670 

605 

545 

495

459 

428 

385 

338 

311

298 

270 

241 

214 

187

166 

156 

139 

124 

118

113 

109 

126 

122 

118

113 

109 

105 

107 

114 

118

Aug.

107 

100 

93 

93 

120

185 

147 

116 

105 

107

109 

100 

91 

91 

86

82 

80 

72 

70 

68

65 

64 

63 

64 

65

66 

68 

69 

68 

65 

63

Sept.

64 

61 

60 

60 

58

57 

53 

57 

65 

68

68

65 

60 

60 

60

63 

65 

65 

66 

70

68

66 

66 

' 64 

66

78 

91 

90 

91 

95

Mini-. "- See1?

80 106 6,540 

82 127 7,560 

47 104 6,380

47 586 424,500

60 173 10,620 

120 509 28,260 

623 1,388 85,340 

1,180 1,895 112,700 

1,140 1,778 109,300 

742 1,186 70,570 

105 262 16,120 

63 88.5 5,440 

53 67.3 4,010

47 639 462,800

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for stations 

near Council and near Weiser and other nearby streams, 

b Stage-discharge relation affected by ice.
184 WEISER RIVER BASIN 

Weiser River above Crane Creek, near Weiser, Idaho

Location.--Water-stage recorder, lat. 44°18', long. 116°48', In sec. 10, T. 11 H., 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 1950.

Average discharge.--29 years (1921-50), 862 second-feet.

Extremes.--Maximum discharge during year, 8,130 second-feet Mar. 18; maximum gage height, 

a.UU feet Feb. 25 (ice jam); minimum discharge, 48 second-feet Sept. 8, 9, (gage 

height, 0.93 foot).

1920-50: 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 good except those for periods of ice effect or no gage-height record, 

which are fair, except those about Jan. 20 to Feb. 26, which are poor. Flow partly 

regulated by Lost Valley Reservoir (see p.185 ) and other reservoirs. Diversions 

above station for irrigation.

Revisions (water years).--W 903: 1932(M).

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

130

137 

146 

146 

156

211 

219 

211

192 

200

200 

170 

143 

127 

124

121 

118 

118 

118 

118

116 

121 

124 

124 

121

121 

124 

121 

124 

124 

124

Nov.

124 

127 

127

124 

121

121 

118 

121 

143

256

274 

223 

219 

189 

178

167 

160 

156 

153 

153

150 

150 

*156 

204 

269

244 

252 

334 

325 

256

Dec.

240 

219

200 

167 

146

189 

185 

178 

174 

160

70 

85 

150 

150 

150

150 

150 

160 

150 

90

120 

150 

160 

170 

110

130 

170 

160 

130 

150 

130

Jan.

150 

140 

100 

90

85

130 

150 

160 

150 

150

150 

150 

150 

130 

115

140 

150 

152 

*155 

180

350 

900 

1,100 

750 

320

360 

480 

370 

250 

280 

220

Feb.

220 

190 

180 

280 

400

550 

1,200 

1,000 

850 

750

700 

640 

620 

600 

620

640 

650 

660 

720 

960

1,000 

*1,000 

960 

1,100 

2,500

2,800 

3,230

2,610

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 194£ 

ary

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

Mar.

1,990 

1,700 

1,600 

1,930 

2,390

3,300 

2,500 

2, 110 

1,760 

1,750

1,630

1,210 

1,140 

1,040 

1,140

1,690 

5,400 

6,280 

5,680 

4,960

3,710 

3,760 

3,280 

3, 690 

3,390

2,580 

2,400 

2,030 

1,650 

1,560 

1,520

Apr.

1,830 

2,480 

2,440 

2,080 

1,930

1,960 

2,140 

2,250 

2,290 

2,280

2,210 

2,320 

2,730 

4,350 

3,660

3,090 

3,040 

3,090 

2,940 

2,860

2,900 

3,100 

2,960 

2,520

2,230

2,100 

2,060 

1,920 

1,710 

1,610

Secondfoot-days

4,451 

5,594 

4,743

314,602

8,157 

27,630 

80,770 

75,080 

72,390 

53,400 

10,370 

2,915 

2,308

347,808

May

1,780 

2.25C

2,100 

1,900 

1,700

1,550 

1,450

1,400 

1,500 

1,600

1,700 

2,000 

2,500 

3,000 

3 , 300

3,200 

3,100 

2,930 

2,730 

2,500

2,600 

2,800 

3, 100 

2,900 

2, 700

2 , 500 

2,500 

2,400 

2,300 

2,200 

2,200

Maximum

219 

334 

240

5,830

1,100 

3,230 

6,280 

4,350 

3,300 

2,200 

1,050 

2OO 

130

6,280

June

2,200 

2,200 

2,050 

2,050 

2, 100

2, 100

2,050 

1,890 

1,760 

1,620

1,620 

1,690 

1,690 

1,620 

1,660

2,140 

2,140 

2,080 

1,940 

1,900

2,010 

1,990 

1,700 

1,600 

1,570

1,330 

1,230 

1,190 

1,150 

1,130

July

1,050 

968 

880 

778 

704

622

562 

493 

446 

402

391 

349 

310 

282 

240

208 

192 

181 

160 

115

107 

104 

102 

107 

99

93 

88 

81 

84 

84 

88

Minimum

118 

118

70

30

85 

130 

1,040 

1,610 

1,400 

1,130 

81 

59 

52

52

Aug.

96 

93 

84 

77 

81

124 

200 

164 

137 

118

127 

127

107 

102 

102

93 

88 

86 

81 

75

70 

61 

59 

61 

66

75 

70 

75 

73 

73 

70

Mean

144

186 

153

862

263 

987 

2,605 

2,503 

2,335 

1,780 

335 

94.0 

76.9

953

Sept.

64 

64 

77 

57 

57

55 

53 

52 

52 

55

61 

64 

70 

68 

70

68 

77 

84 

81 

81

91 

84 

84 

81 

79

91 

104 

124 

130 

130

Runoff in 

acre-feet

8,830

11,100 

9,410

924,000

16,180 

54,800 

160,200 

148,900 

143,600 

105,900 

20,570 

5,780 

4,580

689,800
WEISER RIVER BASIN 185

Lost Valley Reservoir near Tamarack, Idaho

Location.--Staff gage, lat. 44°57'30", long. 116°C8', in sec. 28, T. 19 N., R. 1 W., 

a short distance upstream from outlet gates near left end of dam on Lost Creek, 

4 miles west of Tamarack and 16 miles north of Council. Datum of gage is 4,748.8 

feet above mean sea level (river-profile survey).

Drainage area.--29.4 square miles.

Records available.--Mgy to September 1924, May 1926 to September 1950.

Extremes.--Maximum gage height observed during year, 26.52 feet June 17; minimum observed, 

2.Bt; feet Oct. 17.

1924, 1326-50: 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 feet in 1929. 

Permanent spillway crest is at gage height 22.26 feet; flashboard structure built in 

1938 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. 

Revisions.--W 833: Drainage area.

Gage height, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

9.63

9.28

8.78

8.21

7.69

7.20

6.71

6.11

4.12

3.31

3.19

3.12

3.10

2.86

3.04

-

_

-

_

-

Nov. Dec. Jan. Feb.

9.40

Mar. Apr. May

24.62

June

.

24.42

_

_

24.60

_

-

_

-

25.86

26.16

-

26.52

-

_

-

26.30

July

_

_

_

_

-

_

_

-

_

-

25.90

-

25.86

25.60

-

-

Aug.

_

.

_

-

_

_

-

_

_

-

_

22.26

21.68

.

21.24

Sept.

-253646 O - 53 - 13
186 WEISER RIVER BASIN 

Lost Creek near Tamarack, Idaho

Location. Water-stage recorder, lat. 44°57', long. 116°28', in sec. 28, T. 19 N., R. 

i w., a quarter of a mile downstream from dam of Lost Valley Reservoir, 4 miles west 

of Tamarack, and 16 miles north of Council. Datum of gage is 4,729.6 feet above mean 

sea level (river-profile survey).

Drainage area. 29.4 square miles.

Records available.--January 1910 to August 1914, May 1920 to September 1921, May 1924 to 

septemcer iabu.

Average discharge.--20 years (1930-50), 36.9 second-feet.

Extremes.--Maximum discharge during year, 301 second-feet May 17 (gage height, 2.91 feet): 

practically no flow Nov. 1 (gage height, 0.67 foot).

1910-14, 1920-21, 1924-50: Maximum discharge, about 688 second-feet May 17, 18, 

1921 (gage height, 4.29 feet); practically no flow at times when gates in dam were 

closed.

Remarks.--Records good except those below 10 second-feet, which are fair, and those for 

Apr. 12 to May 12, which are poor. No diversion between reservoir and station; practically entire flow diverted below station during irrigation season. Flow rerulated 

since 1910 by Lost Valley Reservoir (see p. 185).

Cooperation. Water-stage recorder inspected by Lost Valley Reservoir Co. 

Revisions. W 833: Drainage area.

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

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

23 

30 

31

Oct.

94 

92

88 

86 

84

81 

76 

70 

62 

45

17 

8 

8 

7 

7

7 

7 

7 

7 

7

7 

7 

7 

7 

7

7 

7 

7 

8 

7 

5

Nov.

5 

5 

4 

4 

4

4 

4 

4 

4 

4

4

Dec.

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

5 

5

Jan.

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5 

6

6 

6 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6 

6

Feb.

6 

6

6 

6 

6

6 

6 

6

6 

6

6

6 

6

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6 

6

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

8 

8 

8 

8 

8 

8

Apr.

8 

8 

8 

8 

8

9

9 

9 

9 

9

9 

9 

9 

9 

9

9 

9 

10 

10 

10

10 

10 

10 

10 

10

11 

11 

11 

11 

11

Secondfoot-days

936 

125 

155

17,490

170 

168 

212 

283 

5,673 

2,095 

1,107 

1,662 

1,470

14,056

May

20 

61 

78 

86 

100

115 

130 

130 

130 

140

150 

160 

176 

2E5 

277

290 

301 

290 

£67 

241

222 

222 

£44 

232 

£13

210 

207 

202 

196 

184 

174

Maximum

94

5 

5

340

6 

6 

8 

11 

301 

168 

61 

56 

52

301

June

168 

143 

114 

120 

82

26 

35 

44 

52 

56

41 

31 

38 

44 

53

62 

70 

78 

83

81

83 

80 

76 

76 

71

66 

61 

58 

54 

49

July

45 

42 

40 

36 

33

32 

32 

27 

26 

24

21 

20 

18 

17 

16

15 

14 

13 

13

12

33

61 

59 

58 

58

58 

58 

58 

56 

56 

56

Minimum

5 

4 

5

2

5

6 

6 

8 

20 

26 

n 2

52 

46

4

Aug.

56 

56 

56 

55 

55

55 

55 

54 

54 

54

53 

54 

54 

53 

53

53 

53 

53 

53 

53

53 

53 

53 

53 

53

53 

53 

53

52 

52 

52

Mean

30.2 

4.2 

5.0

47.9

5.5 

6.0 

6.8 

9.4 

183 

69.8 

35.7 

53.6 

49.0

38.5

Sept.

52

52 

52 

52

51 

51 

51 

51 

51

49 

49 

49 

49 

49

48 

48 

48 

48 

48

48 

48 

47 

47 

47

47 

47 

47 

46 

46

Runoff In 

acre-feet

1,860 

248 

307

34,700

337 

333 

420 

561 

11,250 

4,160 

2,200 

3,300 

2,920

27,900

Note.--No gage-height record Dec. 9 to Feb. 25, Mar. 1 to Apr. 11, May 5-12; discharge computed on 

basis of records of gate settings and records for nearby streams.
WEISER RIVER BASIN 187

Mesa Orchards Canal near Mesa, Idaho

Location.--Staff gage, lat. 44°38', long. 116°25', In sec. 14, T. 15 N., R. 1 W., 1,500 

feet upstream from end of flume, lj miles northeast of Mesa, and 3 miles downstream 

from head gates.

Records available.--1924, 1928-50 (Irrigation seasons only except 1947-50).

Extremes.--Maximum discharge observed during year, 39 second-feet Aug. 3, 14; maximum gage 

height observed, 2.61 feet June-14-16; no flow for long periods during nonirrigation 

season.

1924, 1928-50: Maximum discharge observed, 39 second-feet July 17, 1945, July 18-23, 

27, 30, 1947, Aug. 3, 14, 1950; maximum gage height observed, 2.71 feet 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. 

Gage usually read twice daily and gate changes noted. Canal diverts from Middle Fork 

Weiser River in SE^NW^- 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 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29

30 

31

Oct.

11 

alO 

aB 

a? 

5.7

a6.2 

a6.7 

7.2

a? 

O

o

0

o

0 

0 

0

o 

o

0

o

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1949

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

Mar. Apr.

0 

0 

0 

0 

o

0

o 

o 

o 

o

o 

o

0

. 0 

0

o

0

o 

0 

o

0 

o

0 

, a*

Secondfoot-days

96.8 

0 

0

4,375.3

0 

O

0 

28 

549 

887 

1,037 

1,061 

706

4,364.8

May

 a!2

19 

» a!9

25

26

26 

26 

28 

28

Maximum

0 

0

36

O 

0 

0

28 

3b 

38 

SB 

32

38

June

31 

34 

36

30

31 

35 

34 

34 

34

34 

34 

34

35 

35

33 

30 

30 

30

31

31 

24 

23 

23 

17

IB 

18 

22 

24

26

July

23 

22 

20 

20 

25

32

35 

35 

3b 

36

36 

36 

35 

35 

36

36 

37 

37

36 

36

37 

37 

37 

37 

37

37 

37 

38 

37 

28 

32

Minimum

O 

0

0

0

0 

0 

0 

O

17 

20 

31

0

Aug.

37 

38 

57 

37 

37

37 

37 

36 

36 

37

37 

38 

38 

38 

33

33 

32 

32 

31 

31

31 

32

31 

31 

32

32 

32 

32 

32 

32 

32

Mean

3.12 

O 

O

12.0

O 

O 

0 

.9 

17.7 

29.6 

33.5 

34.2 

23.5

12.0

Sept.

32 

32 

32 

32

28

27 

32 

32 

28 

30

25 

25 

25 

26

25

27 

25 

25 

25 

24

24 

24 

23 

23 

20 ! :

Runoff In 

acre-feet

192 

0 

O

8,680

O 

0

o

56 

1,090 

1,760 

2,060 

2,100 

1,400

8,660

a No gage-height record; discharge computed on basis of reported gate changes and weather records.
188 WEISER RIVER BASIN

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 

reet upstream from West Fork and 3.2 miles northwest of Cambridge.

Records available. April 1938 to September 1950. 

Average discharge.--12 years, 37.9 second-feet.

Extremes.--Maximum discharge observed during year, 196 second-feet Mar. 17, June 16 (gage 

height, 2.53 feet); minimum observed, 1.9 second-feet Aug. 17, 19, 21-23 (gage height, 

0.56 foot).

1938-50: Maximum discharge observed, 505 second-feet May 27, 1948 (gage height, 

3.80 feet), from rating curve extended above 200 second-feet by logarithmic plotting, 

but may have been more when gage was overtopped June 3, 1948; minimum observed, 0.7 

second-foot Aug. 3, 1949; minimum gage height observed, 0.43 foot Aug. 27, 28, 1947.

Remarks. Records fair except those for periods of ice effect or non representative gage 

readings, which are poor. Gage read twice daily. Several diversions above station 

for irrigation.

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

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2,5 

3.0 

2.8 

2.5 

3.8

4.0

6.1 

ee.3 

6.5

e.i

£.8 

7.3 

7.3 

7 3

7.3 

8.0 

8.0 

8.0 

8.0

8.0 

8.0 

8.0 

8.0 

8.0

8.8 

8.8 

8.4 

9 3

aiy

9.8

Nov.

8.8 

9.8 

8.8 

8.8 

8.8

8.8 

3.8 

9.3 

13 

13

14 

12 

13 

12 

11

12 

11 

11 

11 

11

11 

11 

13 

15 

14

15 

15 

15 

15 

14

Dec.

13 

12 

10 

11 

11

11 

11 

11

12 

12

7 

8 

11 

12 

12

12 

12 

12 

12 

9

10 

12 

13 

12 

9

10

13 

12

9 

9.3

9

Jan.

10 

10 

g 

7 

7

e

10

11

10

11

10 

10 

10 

9

8

9 

11 

*13 

13 

18

20 

14 

13

i;

10

12 

16 

14 

10 

11 

10

Feb.

9 

8 

8 

9 

10

16

21 

18 

14

13 

14

15 

15 

15

16 

15 

14

17

17

18

 18 

26

46 

61 

62

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

50 

50 

57 

59 

73

70 

57 

54 

47 

45

43

39 

37 

36 

36

44

137 

134 

119 

117

114 

112 

104 

122 

108

96 

93 

89 

80 

78 

101

Apr.

105 

117 

111 

101 

100

105 

105 

111 

108 

104

108 

112 

130 

121 

101

100 

104

100 

93 

89

87 

89

s;

78 

77

74 

72 

71 

66 

64

Secondfoot -days

208.0 

353.9 

339.3

12,174.4

347 

566 

2,401 

2,886 

2,401 

3,092 

684.0 

125.1 

96.9

13,500.2

May

77 

72

68 

64 

57

46 

42 

42 

44 

44

48 

59 

77 

87 

92

87 

89 

79 

71 

72

74 

97 

110

97 

94

114 

107 

97 

105 

97

Maximum

9.6 

15 

13

247

20

62 

137 

130 

114 

161 

65 

8.4 

4.5

161

June

111 

121 

117 

121

126

105

83 

76

68

89 

89 

93 

103 

97

161 

137 

140 

134 

119

115 

105 

108 

115 

80

74

73 

68 

68 

74

July

65 

64 

54 

44 

39

38 

37

se

37 

37

30 

23 

23 

17 

15

14 

12 

7.7 

7.7 

7.3

7.3

6.9 

6.9 

6.5

6.9

7.3 

7.3 

6.5 

7.3 

6.9

Minimum

2.5 

8.8 

7

.8

7 

8 

36 

64 

42 

68 

6.5 

1.9 

2.0

1.9

Aug.

5.0

6.1 

6.1 

6.9 

7.3

3.4 

6.9 

6.1 

6.1

6.5

5.0 

4.2 

4.0 

4.0 

3.5

3.5 

1.9 

e2.0 

2.0

2.0

1.9 

2.4

2.8

5.0 

3.0 

3.0 

2.5 

2.4 

2.2

Mean

6.71 

11.8 

10.9

33.4

11.2 

20.2 

77.5 

96.2 

77.5 

103 

22.1 

4.04 

3.23

37.0

Sept.

2.0

2.2 

c.2 

2.0 

2.4

2.4 

2.4

2.8

3. 2 

2.8

3.2 

2.8 

3.0 

3.2

3.E

3.0 

3.2 

3.8 

4.0 

4.0

3.5

3.8 

4.0 

3.8 

4.0

3.5 

3.8 

4.0 

4.2 

4.5

Runoff in 

acre -feet

413 

702

673

24,140

688 

1,120 

4,760 

5,720 

4,760 

6,130 

1,360 

248 

192

26,770

* Winter discharge measurement made on this day.

e Gage readings In error or not representative of mean for the lay; discharge computed on basis of 

weather records and records for other stations in Weiser Elver Basin.

Note.--Stage-discharge relation affected by Ice Dec. 11-13, iQ, 21, 25, 26, 29, Dec. 31 to Jan. 21, 

Jan. 25 to Feb. 12.
WEISER RIVER BASIN iHy 

Little Weiser River near Indian Valley, Idaho

Location.--Water-stage recorder, lat. 44°30', long. 116°24', in ME£ sec. 1, T. 13 N. , 

RTT~W., 60 feet downstream from barn at Richardson Ranch, 1 mile upstream from diversion feeding C. Benn Ross Reservoir, and 4f miles southeast of Indian Valley. Prior 

to Aug. 12, staff gage at same site and datum.

Drainage area.--81.9 square miles.

Records available.--April 1938 to September 1950. June 1920 to February 19D1, March to 

aeptemcer laiis, and February 1924 to October 1927 at nearby sites.

Extremes.--Maximum discharge observed durine; year, 372 second-feet June 6, 7; maximum

 gage height observed, 3.06 feet Jan. 21 (ice jam); minimum discharge observed, 4.7 

second-feet Dec. 12 (gage height, 0.24 foot).

1920-21, 1923-27, 1938-50: 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 no gage-height record,

 which are fair. Gage read once or twice daily until- Aug. 12. 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 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

14

10

10

10

18

15

14

12

13

15

15

14

14

13

13

IE

12

13

12

12

12

12

12

12

12

12

12

12

12

12

12

Nov.

12

12

12

12

12

12

12

16

21

30

24

25

21

18

16

15

13

13

15

12

12

*12

20

30

28

27

33

42

30

28

-

Dec.

24

23

12

10

10

20

18

14

16

10

10

4.7

12

16

14

15

16

17

16

7. ^

12

12

17

16

b!2

16

16

b!2

bll

bll

bll

Jan.

12

12

7.5

b7

b6

b9

16

13

16

14

14

13

13

12

b8

13

12

*14

16

17

b30

b68

b78

b70

44

32

50

32

35

32

b25

Month

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Feb.

b25

b23

b21

b25

31

b54

97

57

49

45

37

b36

35

35

37

45

37

47

52

56

54

52

50

*73

175

306

177

106

-

_

-

Secondfoot-days

393

563

431.6

33,278.4

740.5

1,B37

4,229

5 397

7^752

8,699

2,356

623

315.1

33,356.2

Mar.

b!02

183

156

212

250

300

150

120

110

105

83

74

70

68

70

90

250

240

250

170

*143

145

123

126

120

103

96

88

81

72

74

Maximum

18

42

24

610

78

306

300

273

361

372

177

56

14

372

Apr.

106

140

117

103

106

120

147

150

140

147

143

173

236

227

201

193

236

241

223

241

232

E73

264

201

197

193

177

169

154

147

-

May

197

181

165

154

147

133

120

126

133

136

158

197

266

298

316

331

348

306

266

248

271

316

361

345

313

313

334

329

313

318

308

Minimum

10

12

4.7

4.7

6

21

68

103

120

175

32

10

6.7

4.7

June

318

339

334

345

361

372

372

316

286

271

261

286

276

271

268

308

331

321

313

318

364

306

273

264

225

208

201

189

187

175

-

Mean

12.7

19.4

13.9

91.2

23.9

6S.6

136

180

250

290

76.0

20.1

10.5

91.4

July

177

165

149

134

126

114

107

102

96

88

85

78

74

70

68

65

62

57

56

53

51

47

45

42

39

37

35

35

34

33

32

Per 

square 

mile

0.155

.237

.170

1.11

.292

.801

1.66

2.20

3.05

3.54

.928

245

!l28

1.12

Aug.

30

29

28

28

36

32

29

26

24

24

23

22

21

20

20

19

18

17

17

16

16

16

14

14

14

13

13

12

12

10

10

Sept.

10

10

10

9.1

9.1

9.1

9.1

10

14

13

11

10

10

10

10

10

10

12

12

10

9.3

8.9

8.7

8.7

9.1

14

13

11

12

12

-

Runoff

Inches Acre-feet

0.16 780

.26 1,160

.20 856

15.13 66.010

.34 1,470

.83 3,640

1.92 6,390

2.45 10,700

3.52 15,380

3.95 17,250

1.07 4,670

.28 1,240

.14 625

15.14 66,160

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.--No gage-height record Nov. 8-21, 23-29, Mar. 5-20, 22; discharge computed on ba 

weather records and records for other stations in Weiser River Basin.
190 WEISER RIVER BASIN

Crane Creek Reservoir near Midvale, Idaho

Location. Staff gage, lat. 44°22', long. 116°37', in SE^ sec. 19, T. 12 N., R. 2 W., at

 gate-control structure near left end of dam on Crane Creek, 10 miles southeast of 

Midvale.

Drainage area. 242 square miles.

Records available. November 1923 to September 1950.

Extremes. Maximum gage height observed during year, 50.1 feet Mar. 20, 21, 24; minimum 

oDserved, approximately 21.0 feet Oct. 4.

1923-50: 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 lower Weiser Valley.

Cooperation. Gage readings furnished by Crane Creek Reservoir Administration Board. 

Revisions. W 833: Drainage area.

Gage height, in feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

g

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

_

fEl.O

21.1

-

_

_

-

_

_

f21.1

_

_

_

-

_

_

_

f21.2

-

Nov.

_

.

-

-

I

-

_

_

-

f21.2

_

_

.

21.3

f 21 . 3

_

-

_

T21.5

_

_

-

Dec

_

_

-

-

-

_

21.57

_

_

-

_

_

_

-

_

_

_

21.58

Jan.

_

-

-

'

-

_

_

-

_

_

-

_

24.08

-

_

_

_

-

Feb.

_

-

-

28.10

-

_

-

_

-

T33.0

_

_

-

_

_

_

-

Mar.

42.1

_

-

44.9

-

_

_

46.7

_

48.9

50.1

50.1

50.0

50.1

49.1

48.8

-

Apr.

48.4

-

-

48.2

-

-

-

48.1

_

48.1

-

-

-

_

-

-

-

48.6

.

-

-

_

-

.

_

-

_

_

-

May

.

-

48.5

-

-

-

-

48.4

-

.

-

-

-

-

48.5

-

-

-

-

_

-

_

_

-

.

48.3

-

_

48.2

-

June

48.2

-

-

-

-

-

48.05

-

~

.

-

-

-

-

47.8

-

-

-

-

_

-

47.7

_

-

.

_

-

_

_

-

July

_

-

-

-

47.2

-

-

-

-

_

-

47.0

-

46.85

.

46.7

-

-

46.4

_

46.1

-

_

-

.

_

-

44.8

-

-

Aug.

.

44.1

-

-

-

-

-

-

"

_

-

42.6

-

-

_

41.9

-

-

41.5

_

-

40.8

_

-

.

39.8

-

_

_

-

Sept.

_

-

-

-

-

38.1

-

-

"

_

-

-

-

-

-

-

-

-

-

_

34.1

-

_

-

.

_

33.2

_

32.9

-

f Gage height approximate only.
WEISER RIVER BASIN 191

Crane Creek near Mldvale, Idaho

Location. Water-stage recorder and concrete control, lat. 44°22 I , long. 116°37'30", In 

SK£ sec. 19, T. 12 N., R. 2 W., 400 feet downstream from Crane Creek Dam and 10 miles 

southeast of Mldvale.

Drainage area. 242 square miles.

Records available.--October 1910 to April 1916, May 1924 to September 1950.

Average discharge.--29 years (1912-15, 1924-50), 69.8 second-feet.

Extremes.--Maximum discharge during year, 719 second-feet Mar. 26 (gage height, 3.32 

reet); no flow for long periods.

1910-16, 1924-50: Maximum discharge observed, 4,240 second-feet Dec. 3, 1910 (gage 

height, 8.9 feet), from rating curve extended above 3,500 second-feet; no flow at times 

in many years when gates in dam were closed.

Remarks.--Records good. Flow regulated since 1911 by Crane Creek Reservoir (see p. 190). 

No large diversion above station.

Cooperation. Water-stage recorder inspected by Crane Creek Reservoir Administration Board. 

Revisions (water years). W 833: Drainage area. W 963: 1941(M).

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

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

ZO

Zl 

22 

23 

24

25

Z6 

27 

28 

Z9 

30 

31

Oct.

18 

16 

16 

8.3 

O

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Jariu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0

o

0

0

0 

0 

132 

257 

375

504 

561 

561 

611 

713

713 

707 

626 

438 

334 

338

Apr.

278 

238 

238 

154 

103

103 

103 

103 

104 

80

57 

56 

56 

55 

55

55 

55 

55 

55 

55

55 

55 

55 

55 

55

55 

55 

55 

55

56

Secondfoot -days

58.3 

0 

0

29,643.7

0 

0 

6,870 

2,609 

882 

729.5 

2,958 

4,366 

4,130

22,602.8

May

56 

56 

56 

56 

56

56 

56 

56 

41 

19

19

18 

18 

18 

18

19 

20 

20 

20 

20

20 

20 

20

21

21 

fll 

0 

0 

18 

32

Maximum

18 

0 

0

672

0 

0 

713 

278 

56 

27 

19b 

182 

184

713

June

23

7.5 

8.0 

21 

25

26 

26 

26 

26 

25

25 

26

26 

26 

26

26 

27 

27 

27 

27

27 

25

26 

25

25

25 

25

25 

25 

25

July

25 

25 

25 

25 

25

25 

25 

25 

25

25

25 

25 

f55 

70 

70

70 

73 

85 

85 

105

162 

181 

196 

194 

194

194 

194 

192 

186 

177 

175

Minimum

0 

0

0

0

0 

0 

0 

55 

O 

7.5 

25 

111 

44

0

Aug.

173 

157 

148 

146 

145

145 

145

129 

112 

111

111 

111 

111 

111 

111

111 

111 

111 

112

129

151 

151 

152 

182 

182

182 

182 

166 

160 

160 

158

Mean

1.88 

0 

0

81.2

0 

0 

222 

87.0 

28.5 

24.3 

95.4 

141 

138

61.9

Sept.

158 

158 

157 

157 

157

173 

184 

182 

182 

182

162 

182 

168 

142 

142

142 

140 

140 

139 

139

138 

110 

1O4 

103 

101

99 

39 

73 

53 

44

Runoff In 

acre -feet

116 

0 

0

58,800

0 

0 

13,630 

5,170 

1,750 

1,450 

5,870 

8,660 

8,190

44,840

f Computed on basis of partly estimated gage-height 

Note. No gage-height record May 21-26, June 30 to July 4, July 6-12; discharge 

of gate changes and record for station at mouth near Welser.

mputed on basis
192 WEISER RIVER BASIN

Crane Creek at mouth, near rfeiser, 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 1920 to September 1950.

Average discharge.--29 years (1921-50), 77.6 second-feet.

Extremes. Maximum discharge during year, 1,130 second-feet Mar. 24 -(gage height, 5.78 

feet); minimum, 1.9 second-feet May 30 (gage height, 1.66 feet); minimum daily, 2.2 

second-feet May 29.

19CO-50: Maximum discharge, 2,350 second-feet about Feb. 7, 1925 (gage height, 6.8C 

feet, from well-defined marks on gage), from rating curve extended above 1,000 aenomifeet; 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 ice effect or no gage-height record,

are poor. Plow regulated since 1911 by Crane Creek Reservoir (see p. 190 )'.

eral small ditches divert above station for irrigation.

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

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

16 

16 

16 

16 

11

6.2 

5.5 

5.0 

5.0

5.2

5.2 

5.2 

5.2 

5.2 

5.2

S!E

$'.2

5.2

5.5 

5.5

5.5 

5.5

5.2 

5.5

5~.2

5.2 

5.2

Nov.

5.2 

5.5 

5.2

S!E

5.2 

5.5

5.8 

6.8 

7.9

6.5 

6.0 

5.5

5.2

5.2 

5.2

5.2 

5.2

5.2 

5.5 

*6.0 

6.2 

6.0

5.8 

6.0 

5.8 

5.8 

5.8

Dec.

5.8

5.8 

5.8 

5.2 

5. 2

5.5 

5.2 

5.2 

5.2 

5.0

4.8 

5.5 

5.2 

5.2 

5.5

6.0 

6.0

5~.B 

5.5

5.8

5.6 

5.8

5.5

6.0 

5.8 

5.8 

5.5

5.8

Jan.

5.8 

5.0 

4.2 

1:4.5 

bS.O

bS.O 

b5.5 

6.2

6.0 

6.0

5.8 

5.5 

5.5 

b5.5 

bS.O

bb.O 

b6.0 

b6. 5 

*6.5

e.o

7.9 

10 

59 

27 

12

7.6 

6.5 

5.5 

6.8 

b6.0

Feb.

b5 

a4 

a4 

a!2 

19

32

66 

45

12

8.6 

7.6 

7.6 

7.9 

12

13 

12 

13 

14 

18

18 

+ 14

ie

100 

325

169 

150

66

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1349 

ary

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

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

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

Mar.

48 

43 

110 

121 

113

103 

71 

59 

48 

50

46 

27 

23 

20

69 

526 

243 

695 

501

69£ 

841 

801 

993 

1,040

1,010 

1,010 

895 

562 

390 

387

Apr.

325 

258 

255 

192 

113

113 

113 

113 

113

96

59 

57 

62 

73 

59

57 

57

55 

55 

55

55

53 

5C

52

53 

52 

52 

51

50

May

55 

58 

52 

51 

50

47

48 

46 

20

13 

12 

11 

13 

13

12 

12 

10 

7.6 

9.3

8.9 

6.8 

6.8 

7.6 

7.2

7.2 

7.2 

3.7

2.3 

9.3

Second- « < ,, foot -days Maximum

170.0

16 

7.9 

6.2

33,353.9 923

248.4 39 

1,193.7 525 

11,563 1,040 

2,802 325 

659.1 58 

539.2 26 

2,429.9 177 

4,051 167 

3,913 177

27, 954. e I,li40

June

12 

4.0 

3.8 

6.2 

7.2

6.0 

15 

20 

18

18

20 

19 

19 

19 

21

22 

23 

23 

23 

23

23 

23 

21 

26 

25

21 

21 

21 

18 

18

July

15 

16

16

14 

13 

12 

13 

13

11 

7.9 

20

51 

52

52 

53 

65 

67 

74

142 

154 

175 

177 

177

177 

177 

173 

169 

156 

156

Aug.

158 

148 

134 

136 

136

136 

136 

126 

106 

103

106 

108 

104 

103 

103

104 

103 

103 

101 

113

138 

136 

136 

165 

165

167 

167 

154 

154 

152 

150

Sept.

150 

146 

146 

146 

144

152 

177 

177 

177 

175

173 

171 

162 

150

150

132 

132 

134 

134 

132

130 

122 

94 

94

92

93 

93 

81 

47 

47

Minimum «ean *£«.£

5.0 6.86 422 

5.2 5.67 337 

4.8 5.58 343

1.6 91.4 66,150

4.2 8.01 493 

4 42.6 2 370 

20 373 22 930 

50 93.4 5 560 

2.2 21.3 1 310 

3.8 18.0 1 070 

7.9 78.4 4 820 

101 131 8 040 

47 130 7 760

2.2 76.6 55,460

* Winter discharge measurement made on this iay. 

a No gage-height record; discharge computed on basis of weather records and records for station 

near Midvale and other nearby streams, 

b Stage-discharge relation affecte! by ice.
WEISER RIVER BASIH 193

Weiser Irrigation District Canal near Weiser, Idaho

Location.--Water-stage recorder, lat. 44°15', long. 116°51 I , in sec. 32, T. 11 N., R. 4 

,'.'., if£ milec downstream from headworks of canal and V miles east of Weiser. Altitude 

of gage, 2,210 feet (from topographic map).

Records available.--April 1920 to September 1950 (winter records fragmentary).

Extremes.--Maximum discharge observed during year, 200 second-feet May 23, Aug. V (gage 

neignt, 2.83 feet); minimum, 0.5 second-foot Mar. 28 to Apr. 4; minimum gage height, 

0.0V foot Apr. 2-4.

1920-50: 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 for periods of ice effect or no gage-height record, 

whicn are poor. Canal diverts water from Weiser River in sec. 35, T. 11 N., R. 4 W., 

3£ miles above station for irrigation of about 9,000 acres included in projects of 

rieiaer and Weiser Bench Irrigation Districts. One farm lateral diverts a quarter of a 

mile above station.

Cooperation.--Water-stage recorder graph and gage readings furnished by rfeiser Irrigation 

District.

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

107 

103 

112 

111 

f!04

65 

36 

32 

31

30

30 

39 

46 

45 

29

5.3

3.3

1.9 

1.9

1.9 

1.7 

1.7 

1.7 

1.7

1.7 

1.6 

1.4 

1.4 

1.4 

1.4

Nov.

1.4 

1.4 

1.6 

2.1 

2.3

2.5 

2.5 

2.5 

2.5 

2.5

2.5 

2.1 

1.7 

1.7 

1.7

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

*1.6 

1.6 

1.4

1.2 

1.0 

1.0 

1.0 

1.0

Dec.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0 

1.0

Jan.

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1

3.0 

2.0 

1.6

1.4 

1.2 

1.2

1.2

Feb.

> 1.4

hi. 6

I"

1.0 

1.0

Month

Octo 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year

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

Mar.

.0 

.0 

.0 

.0 

.0

.0 

.0 

.0 

.0 

.0

.0 

.0 

.0 

.8

.6

.6 

.6

.e

.6

.6

. 6 

.8 

.8 

.8 

.8

.8 

.3 

.5 

.5 

.5 

.5

Apr.

0.5

'.5 

.5 

.8

1.0 

1.0 

1.0 

1.0 

27

65 

73 

74 

+75 

73

73 

73 

78 

107

121

121 

122 

120 

141 

160

160 

160 

160 

158 

157

Secondfoot-days

955.3 

52.0 

31.0

-

38.2 

38.2 

24.8 

2,304.8 

5,122 

5,545 

5,928 

5,566 

4,924

30,529.5

May

158 

165 

168 

128

10

12 

16 

102 

152 

171

179 

187 

190 

193 

197

197 

197 

195 

194 

195

197 

198 

199 

194 

190

190 

190 

189 

190 

190 

189

Maximum

112 

2.5 

1.0

-

3.0

1.0 

160 

199 

191 

199 

195 

184

199

June

190 

189 

188 

189 

187

191 

187 

182 

180 

181

182 

182 

182 

182 

182

190 

185 

186 

184 

183

183 

184 

183 

183

182

182 

184

186 

187 

189

July

189 

190 

190 

192 

190

190 

190 

191 

194 

195

196 

199

198 

198 

198

197 

192 

190 

189 

167

185 

192 

194 

192 

192

190 

192 

191 

190 

189 

186

Aug.

190

192 

186 

185 

186

193 

190 

195 

189 

177

164 

187 

179 

168 

171

171

168 

161 

155 

152

176 

172 

163 

177 

186

186 

186 

186 

185 

186 

184

Sept.

182 

176 

179 

168 

162

164 

183 

184 

177 

176

176 

177 

176 

171 

169

173 

173 

172 

170 

166

165 

160 

149 

149 

149

148 

141 

134 

125 

130

Minimum Mean J «e £

1.4 30.8 1,890 

1.0 1.73 103 

1.0 1.00 61

-

1.1 1.23 

1.36 

.5 .80 

.5 76.8 

10 165 

180 185 

167 191 

152 180 

125 164

76 

76 

49 

4,570 

10,160 

11,000

11,760 

11,040 

9,770

.E 83.6 60,560

* Winter discharge measurement made on this day. 

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

h Computed from staff-gage reading.
194 WEISER RIVER BASIN 

Mann Creek near Weiser, Idaho

Location.--Staff gage, lat. 44°24', long. 116"54' , in sec. 11, T. 12 N., R. 5 W., at 

Kicnards Ranch, 11 miles northeast of Weiser and 12 miles upstream from mouth.

Drainage area. 56 square miles.

Records available.--March 1911 to September 1913, July to November 1920, April 1937 to 

September iy5U.

Average discharge.--15 years (1911-13, 1937-50), 41.2 second-feet.

Extremes. Maximum discharge observed daring year, 298 second-feet Apr. 13 (gage height, 

L'.OU feet, auxiliary gage); minimum observed, 0.2 second-foot Sept. 4 (gage height, 

0.90 foot).

1911-13, 1920, 1937-50: 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 flow Aug. 18 to 

Sept. 22, 1937, July 31 to Sept. 13, 1939.

Remarks. Records fair except those for periods of ice effect or doubtful gage-height 

record, which are poor. Gage read twice daily. One diversion above station for irrigation .

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.2

2^5 

2.5 

3.1

3.4 

3.2 

3.2 

3.4 

3.9

3.6 

3.2 

3.2 

3.1 

2.9

2.9 

3.1 

3.1 

3.2

3.1 

3.2

S',4:

3.6

s.e

3.6

3.6 

3.6 

3.6 

3.6

Nov.

3.6 

3.9 

4.1 

4.1 

4.1

4.1 

4.4

5.4

7.0

5.2

5.9 

5.2 

4.6 

4.6 

4.6

4.6 

4.6 

4.1 

4.1 

4.1

3.6 

*3.6 

4.6 

7.3

6.2

5.4

6.6 

6.2 

5.4 

5.2

Dec.

4.9 

3.2 

2.7 

2.5 

3.9

4.4 

4.4 

4.1 

3.9 

3.6

3.6 

3.2 

4.6 

5.2 

5.2

5.2 

4.9 

4.9 

5.2 

4.6

4.1 

3.9 

4.4 

4.9 

b4.5

b4.5 

b5.0 

5.2 

5.2 

5.2 

5.2

Jan.

4.9

3.2 

b3.0

b2.8 

b2.5

b4.0 

5.2 

5.2 

5.2 

5.4

5.2 

b5.0 

b5.0 

b4.5 

b4.0

b4.5 

b5.0 

5.2 

*5.7 

b6.0

b7.0 

7.7 

8.5 

7.7

b6.0

b6. 5 

b7.5 

b6.5 

b6.0 

b5.8 

b5.5

Feb.

b5.4 

"D5.2 

b5.0 

b7.0 

9.6

12 

15 

13 

12 

10

9.6 

9.6 

8.5 

8.1 

8.5

9.6 

10 

11 

13 

17

17 

*17 

18 

22 

48

54 

55

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

41 

50 

54 

45 

48

41 

36 

36 

34 

31

28 

27 

24 

22 

20

29 

156 

155 

107 

80

60 

48 

51 

77 

66

56 

54 

52

55

85

Apr.

176 

130 

106 

88 

85

85 

113 

108 

105 

106

119 

157 

241 

188 

159

162 

186 

178 

181

186

188 

186 

159 

120 

124

124

128 

126 

122 

98

Secondroot-days

99.2 

147.4 

136.3

12,322.3

166.2 

492.1 

1,720 

4,234 

3,611 

1,046 

275.3 

58.4 

30.5

12,016.4

May

133 

133

120 

106 

102

97 

91 

99 

118 

137

150 

169 

209 

211 

169

146 

146 

126 

109 

99

100 

107 

106 

96

86

80 

79 

78 

d74 

d70 

d65

Maximum

3.9 

7.3 

5.2

263

8.5 

62 

156 

241 

211 

63 

19 

5.1 

2.4

241

June

d63 

d61

dse

d56 

d54

d48 

d40 

35 

.34 

34

34 

34 

33 

33

31 

31 

29 

29 

27

26 

27 

29

27

27 

23 

d22 

d21 

d20

July

d!9 

d!8 

d!6 

dl5 

d!4

dl3

d!3 

dl2 

d!2 

dll

11 

10 

9.

7. 

6. 

6. 

6. 

6.

5. 

5. 

5. 

4. 

4.

4. 

4. 

4. 

4. 

4.0 

3.6

Minimum

2.2 

3.6 

2.5

.8

2.5 

5.0 

20 

85 

65 

20 

3.6 

.6 

.3

.3

Aug.

3.2

2.8 

2.8 

2.8 

2.8

5.1 

3.6 

2.8

'.8

.4 

.4 

.4

.4 

.4

2.0 

1.8 

1.2 

1.0 

.8

.7 

.7 

.7 

.8 

.8

.8 

.8 

.8 

.7 

.7 

.6

Mean

3.20 

4.91 

4.40

33.8

5.36 

17.6 

55.5 

141

116 

34.9

8.88 

1.88 

1.02

32.9

Sept.

0.4

.8 

.8 

.8 

1.0 

.7

.7 

.8

1.2 

1.6 

1.8

2.2 

2.4

2.4 

2.4 

2,4

Runoff In 

acre-feet

197 

292 

270

24, 440

330 

976 

3,410 

8,400 

7,160 

2,070 

546 

116 

6C

23,830

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of weathe 

nearby streams.

Note.--Maximum discharge Apr. 13 and daily discharge Mar. 17-19, Apr 

based on record at auxiliary gage 100 feet downstream.

records

1-3, 12-

nd records for 

9, and May 1-28
BURNT RIVER BASIN 

Unity Reservoir near Unity, Oreg.

Location.--Staff gage and low-water reference mark, lat. 44°30', long. 118°11', in S'rf£ 

sec. 21, T. 12 S., R. 37 E., at Unity Dam on Burnt River, just downstream from Job 

Creek, half a mile downstream from confluence jf North, Middle, and South Forks of 

Burnt River, and 4-j miles north of Unity. Datum 3f eage is at mean sea level, datum 

of Bureau of Reclamation. (To convert elevations tcTdatum of 1929, add 0.12 foot.)

Drainage area.--309 square miles.

Remarks Reservoir is formed by earth-fill dam with concrete spillway and outlet wrrks, 

completed by Bureau of Reclamation in 1937; storage began Feb. 19, 1938. Capacity, 

25,220 acre-feet between elevations 3,776.5 feet [bottom of outlet gates) and 3,820.0 

feet (top of radial gates on spillway when closed). Dead storage, 600 acre-feet below 

elevation 3,776.5 feet. Records given herein represent usable contents. Water used 

for irrigation of lands in Burnt River Irrigation District near Hereford and Bridgeport. 

Gage read or water surface elevation measured from reference mark once daily by employee 

of Burnt River Irrigation District. Contents computed from capacity table based on 

surveys by Bureau of Reclamation.

Monthly elevation and contents, water year October 1943 to September 1950

Date

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

Oct. 31. ...............

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

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

Calendar year 1949...

Jan. 31. ............. .

Feb. 28. ..............

Mar. 31. ............. .

Apr . 30 ................

June 30 ................

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

Water year 1949-50...

Elevation 

(feet)

3,784.1

-

3,793.2

-

Contents 

(acre-feet)

1,650

-

5,630

-

Change in contents 

during month 

(acre-feet)

+550

-6 , 700

+14 430

-4,410

+3 , 350
BURNT RIVER BASIN

Burnt River near Hereford, Oreg.

Location. --Water-stage recorder, lat. 44°30', long. US 0 !!', in SE^- sec. 21, T. 12 S., R. 

37 E., 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 feet 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 1950.

Average discharge.--21 years (1929-50), 76.1 second-feet.

Extremes. Maximum discharge during year, 386 second-feet Apr. 25 (gage height, 4.02 feet); 

minimum, 0.1 second-foot Oct. 23.

1915-16, 1928-50: Maximum discharge, 2,220 second-feet Apr. 17, 1943 (caused by 

opening of automatic spillway gates), from rating curve extended above 1,300 second-feet 

by logarithmic plotting; maximum gage height, 6.91 feet Apr. 14, 1936, site and datum 

then in use; no flow at times; minimum discharge before construction of Unity Reservoir 

Dam, 1.6 second-feet Aug. 31, 1935.

Remarks.--Records fair. 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.

Revisions (water years).--¥ 903: 1939.

Rating table, vater year 1949-50 (gage height, in feet,

and discharge, in second-feet) 

(Backwater from debris Dec. 11 to Feb. 28, Apr. 22 to

May 27, Aug. 8 to Sept. 30)

1.3 5.5 1.7 23 2.7 110 

1.4 8.5 1.9 35 3.0 160 

1.5 13 2.2 56 3.5 290 

1.6 18 2.4 74 4.0 440

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

ZO

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

92 

90 

89 

90 

95

92 

90 

89 

92 

109

116 

109 

105 

87 

106

113 

106 

86 

72 

70

67 

22 

8 

38 

46

48 

48 

49 

49 

50 

50

Nov.

51 

51 

52 

52 

50

48 

48 

48 

48 

48

48 

48 

48 

48 

48

47 

47 

43 

39 

39

40 

40 

40 

41 

41

41 

41 

42 

43 

43

Dec.

43 

43 

43 

43 

43

43 

43 

43 

43 

43

31

26 

26 

27 

27

27 

28 

28 

28 

28

28 

28 

28 

29

29 

29 

29 

30 

30 

30

Jan.

30 

30 

30 

30

31

31 

31 

31 

32 

32

32 

32 

32 

33

33

32 

32

33 

33 

32

32 

32 

33 

33 

33

33

33 

33 

33 

33 

33

Feb.

33 

33 

33 

33 

33

33 

34 

34 

35 

35

36 

36

36 

36 

36

36 

36 

36 

36 

37

37 

37 

37 

37 

37

38 

39 

39

Month

Octb 

Move 

Dece

Ca

Janu 

Febr 

Mare 

Apr! 

May. 

June 

July 

Augu 

Sept

Wa

ber. .......... ..........................

lendar year 1949

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

Mar.

41 

41 

41 

41 

42

41 

42 

42 

42 

43

43 

43 

43 

43 

43

43 

44 

45 

46 

46

46 

46 

62

77 

77

93 

120 

119 

118

118 

118

Apr.

118 

122 

125 

125 

127

130 

132 

135 

139 

140

144 

156 

158 

170 

190

222 

272 

299 

314 

329

344 

361 

368 

377 

383

383 

380 

374 

362 

359

Secondfoot -days

2,373 

1,363 

1,024

42,193

993 

998 

1,849 

7,238 

5,329 

3,823 

3,093 

3,079 

2,837

33,999

May

356 

314 

190 

198 

200

170 

155 

144 

142 

142

140 

140 

140 

142 

140

174 

212 

202 

168 

155

155 

156 

160 

158 

158

1§4 

158 

155 

153 

146 

142

Maximum

116 

52 

43

449

33 

39 

120 

383 

356 

153 

116 

109 

105

383

June

139 

132 

139 

139 

140

142 

142 

153 

151 

137

125 

124 

122 

122 

124

122 

122 

122 

120 

118

116 

113 

122 

114 

127

130 

122 

118 

114 

112

July

116 

116 

102 

98 

97

96 

93 

98 

95 

104

106 

101 

93 

97 

91

93 

92 

105 

109 

98

92 

100 

104 

101 

98

92 

91 

101 

109 

104 

101

Aug.

97 

95 

100 

98 

93

93 

96 

82 

82 

82

77 

83 

86 

98 

106

105 

105 

106 

106 

107

106 

107 

109 

109 

109

109 

109 

109 

109 

104 

102

Minimum Mean

8 76.5 

39 45.4 

26 33.0

8 116

30 32.0 

33 35.6 

41 59.6 

118 241 

140 172 

112 127 

91 99.8 

77 99.3 

69 94.6

8 93.1

Sept.

101 

100 

98 

97 

95

93 

98 

101 

100 

98

97 

97 

96 

95 

101

105 

104 

104 

102 

100

100 

100 

100 

98 

97

81 

70 

70 

70 

69

Runoff In 

acre -feet

4,710 

2,700 

2,030

83,690

1,970 

1,980 

3,670 

14,360 

10,570 

7,580 

6,130 

6,110 

5,630

67,440
POWER RIVER BASIN 197

Powder River at Salisbury, Oreg.

Location.--Water-stage recorder, lat. 44°39 I , long. 117°5C', in NE^ sec. 36, T. 10 S., R.

39 E., 700 feet downstream from Salisbury siding of Sumpter Valley Railroad and Stices

Gulch and 8| miles south of Baker. Datum of gage is 3,632.31 feet above mean sea level,

datum of 1929, supplemental adjustment of 1947. 

Drainage area.--219 square miles. 

Records available. December 1903 to August 1914 and October 1928 to September 1950 in reports or Geological Survey. January 1904 to July 1914 and June 1926 t'o September 1941

in reports of State engineer.

Average discharge.--3S years (1904-13, 1926-28, 1929-50), 110 second-feet. 

Extremes.--Maximum discharge during year, 512 second-feet May 16 (gage height, 3.75 feet);

minimum, 4.9 second-feet Sept. 18 (gage height, 1.13 feet).

1903-14, 1926-50: 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, 1931. 

Remarks. Records good except those for periods of ice effect, which are poor. Diversions

above station for irrigation. 

Revisions (water years).--¥ 813: 1935. W 1093: Drainage area.

Rating tables, water year 1949-5O, except periods of ice effect 

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

Oct. 1 to Mar. 3

1.2

1.3

1.4

1.5

1.6

1.9

2.1

1.1

1.2

1.3

1.4

1.5

3.8 

7.5

30

Mar. 4 to Sept. 30

1.6 42

1.7 55

1.8 70

2.0 105

2.2 144

2.5 210

2.9 304

3.3 400

3.7 500

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

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

10

12 

11

12

13 

14

12 

14 

16

14 

15

16 

18 

16

16 

16 

14 

16 

15

15 

13 

14 

16 

15

14 

15

15 

14 

13 

13

Nov.

15

19 

13 

14 

16

14 

14 

16 

17 

18

20 

20 

20 

20 

20

20 

21 

20 

19 

16

17 

19 

30 

38 

34

33 

45 

57 

55 

51

Dec.

45 

43 

38 

b37 

37

34 

33 

b31 

30 

b25

b25 

bEO 

b20 

21 

*24

23 

24 

26 

19 

b20

b20 

b22 

24 

21 

b20

b20 

b25

28 

20 

b20 

b20

Jan.

b20 

b20 

b!5 

b!5 

b!5

b!5 

b!5 

b!5 

b20 

b20

b20 

b20 

b20 

b!5 

b!5

b!5 

b!5 

b20 

b20 

b25

b30 

b30 

b25 

b25 

b25

b25 

b30 

*b32 

b30 

b30 

b30

Feb.

bE5 

b30 

b30 

b35

b40

b35 

b35 

b30 

b30 

b30

b30

b3O 

b30 

b30 

b30

b30 

b30 

b30 

b30 

b35

37 

42 

43 

54 

76

96 

94 

86

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194

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

Mar.

87 

87 

121 

114 

114

103 

92 

*85 

80 

82

62 

77 

67 

62 

60

67 

113 

113 

116 

109

100 

114 

101 

101

92

91 

89 

84 

77 8L> 

107

Apr.

217 

338 

275 

226 

231

251 

261 

316 

311 

309

318 

371 

458 

410 

378

364 

390 

422 

400 

415

430 

465 

418 

345

302

280 

273 

258 

238

224

Secondfoot-days

439 

731 

815

44,513.6

667 

1,153 

2,849 

9,894 

10,222 

9,896 

2,262 

799 

271.8

39,998.8

May

2-42 

251 

228 

203 

189

183 

172 

165 

161 

169

194 

242 

347 

442 

480

482 

462 

415 

352 

318

321 

388 

470 

470 

422

415 

435 

422 

408 

398 

376

Maximum

18 

57 

45

834

32 

96 

121 

465 

482 

455 

159 

41 

14

482

June

393 

412 

405 

410 

425

455 

422 

347 

299 

256

254 

335 

321 

314 

318

330 

354 

364 

357 

357

422 

381 

347 

323 

290

240 

212 

198 

183 

172

July

159 

142

126 

126 

126

113 

98 

91 

85 

84

80

77 

70

66 

61

60 

55 

54 

54

51

47 

46 

45 

42 

41

45 

47 

45 

42 

42 

42

Minimum

10 

13 

19

6.8

15 

25

60 

217 

161 

172 

41 

15 

6.8

6.8

Aug.

41 

40 

36 

31 

34

36 

35 

32 

31 

31

31 

29 

30

27 

27

26 

24 

23

21 

20

19 

19 

19 

19 

19

18 

17 

17 

17 

16 

15

Mean

14.2 

24.4

26.3

122

21.5 

41.2 

91.9 

330 

330 

330 

73.0 

25.8 

9.06

110

Sept.

14 

11 

10 

11 

11

11 

10 

8.6 

8.6 

8.6

9.2 

9.2 

9.2

8.6 

8.6

9.2 

9.7 

9.2 

8.6

9.2

8.0 

7.5 

7.1

6.8 

6.8

7.5 

7.5 

7.5

8.6 

10

Runoff in 

acre-feet

871 

1,450 

1,620

88,300

1,320 

2,290 

5,650

19,620 

20,280 

19,630 

4,490 

1,580 

539

79,340

b Stage-discharge relation affected by ice.
198 POWDER RIVER BASIN

Powder River near Haines, Oreg.

Location.--Water-stage recorder, lat. 44°56', long. 117°57', in S| sec. 21, T. VS., R. 

39 E., a tenth of a mile upstream from Muddy Creek, 1 mile downstream from Rock Creek, 

and 1.7 miles north of Haines.

Drainage area.--5"2 square miles.

Records available.--October 1946 to September 1950.

Extremes.--Maximum discharge during year, 623 second-feet June 22 (gage height, 4.59 feet); 

minimum, 1.2 second-feet Sept. 6.

1946-50: Maximum discharge, 1,300 second-feet June 8, 9, 1948 (gage height, 6.67 

feet); minimum, that of Sept. 6, 1950.

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

which are fair. Many diversions above station for irrigation; no seasonal regulation.

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.3 

8.9 

8.9 

8.9 

9.3

9.3 

9.7 

9.7 

10

11

11

11 

10 

10 

10

12 

16 

16 

13 

14

15 

13

14 

13

14

13 

13 

12 

12 

11 

11

Nov.

11 

11 

12 

15 

14

14 

14 

14 

15 

16

16 

15 

15

18 

18

18 

17 

16 

16

14

13 

16 

23 

33 

31

26 

28 

38 

34 

33

Dec.

35

32 

26 

21

24

26 

26 

26 

23 

b20

b!8 

18 

19 

25 

*25

28 

31 

31 

b25 

b22

23 

28 

32 

b30 

b25

24

29 

32 

31 

26 

26

Jan.

25 

b22 

b20 

b!7 

b!8

18 

b24

24 

24 

23

23 

23 

21 

b20 

21

a21 

a21 

a24 

a28 

a30

a35 

a33 

a30 

a27

a25

a28 

*32 

b32 

b31 

b30 

b28

Feb.

b27 

b31 

31 

b35 

b40

34 

33 

34 

34 

35

36 

36 

34 

37 

41

48 

53 

67 

90 

110

107 

105 

111 

142 

220

283

266 

191

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 194S ,

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

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

Peak discharge (base, 30O see. -ft.). Feb.

ft.; Apr. 19 (5 p.m.) 345 sec. -ft.; June 9 (

Mar.

166 

158 

173 

208 

199

182 

156 

*157 

138 

133

119 

109 

110 

113 

111

111 

136 

178 

177 

174

162 

184 

192 

185 

181

160

149 

139 

125 

116

121

Apr.

154 

249 

324 

326 

283

274 

288 

285 

287 

283

282 

283 

296 

319 

341

334 

321 

319 

336 

309

314 

323 

316 

323 

316

252 

230 

199 

178

151

Secondfoot -days

359.0 

574 

807

48,425.4

778 

2,311 

4,722 

8,495 

3,084 

9,918 

1,249 

312.5 

244.9

32,854.4

26 (10 p.m. 

8 a.m.) 400

May

129 

140 

136 

117 

103

90 

48 

35 

27 

29

19 

18 

16 

11 

102

192 

174 

158 

115 

115

98 

71 

46

54 

73

136 

135 

161 

194 

181 

161

Maximum

16 

38 

35

854

35 

283 

208 

341 

194 

554 

164 

28 

33

554

June

135 

117 

117 

117 

139

194 

303 

358 

388 

316

258 

279 

319 

329 

341

375 

411

433 

444 

453

537 

552 

554 

514 

480

407 

329 

268 

249 

202

July

164 

149 

117 

91 

80

58 

41 

36 

36 

40

40 

38 

32 

26 

22

18 

18 

18

24 

24

22 

20 

16 

20 

16

15 

15

12 

13 

14

14

Aug.

14 

14 

11 

11 

11

18 

20 

16 

15 

11

7.1 

9.2 

9.7 

12 

14

14 

12 

28 

14 

8.2

3.6 

2.9 

2.5 

2.9 

3.2

3.9 

4.6 

5.6 

5.3 

4.6 

4.2

Minimum Mean

8.9 11.6 

11 19.1 

18 26.0

2.0 133

17 25.1 

27 82.5 

109 152 

151 283 

11 99.5 

117 331 

12 40.3 

2.5 10.1 

1.6 8.16

1.6 90.0

Sept.

4.9 

5.3 

3.2 

1.8 

1.8

1.9 

1.6

11 

8.2 

7.1

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

33 

12 

11

12

11 

9.7 

8.7 

8.7 

8.7

9.7 

10 

10 

10 

10

Runoff in 

acre -feet

712 

1,140 

1,600

96,050

1,540 

4,580 

9,370 

16,850 

6,120 

19,670 

2,480 

620 

486

65,170

) 321 sec. -ft.; Apr. 3 (10:3O p.m.) 350 sec. 

sec. -ft.; June 22 (3 p.m.) 623 sec. -ft.

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records and records for Wolf Creek 

near North Powder.

b Stage-discharge relation affected by ice.
POWDER RIVER BASIN 199

Powder River near Robinette, Oreg.

Location.--Mater-stage recorder, lat. 44°46', long. 117°04', in SE-f sec. 2?, T. 93., R. 

46 E., downstream from all tributaries, 2 miles northwest of Robinette and 2? miles 

upstream from mouth. Datum of gage is 1,937.01 feet above mean sea level, datum of 

1929, supplemental adjustment of 1947.

Drainage area.--1.710 square miles.

Records available. September 1928 to September 1950.

Average discharge. 22 years, 498 second-feet.

Extremes.--Maximum discharge during year, 3,200 second-feet June 21 (gage height, 4.30 

feet); minimum, 52 second-feet Jan. 31 (gage height, 0.14 foot).

1928-50: Maximum discharge, 5,320 second-feet May 28, 1948; maximum gage height observed, 6.9 feet June 15, 16, 1933, site and datum then in use; minimum discharge observed, 18 second-feet Sept. 3-10, 1930.

Remarks.--Records good except those for periods of ice effect or shifting control, which 

are fair. Many diversions above station for irrigation, none below. One equal with 

capacity of about 5 second-feet diverts around station on left bank. Plow partly regulated by several reservoirs, the largest being Thi<=-f Valley Reservoir near North Powder 

(capacity, 17,400 acre-feet).

Rating tables, water year 1949-50, except periods of ice effect or shifting control 

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

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

85

124

172

263

1.4 

1.7 

2.0 

2.5

383

525

685

1,000

0.4 

.5

88

106

127

178

1.1 

1.4

275

395

595

850

2.7 1,260

3.4 1,990

4.2 3,050

3.0 1,410

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

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

89 

85 

85 

89 

101

114 

114 

129 

129 

145

140 

136 

129 

124 

126

126 

129 

136 

131 

140

138 

136 

138 

138 

136

136 

140 

145 

152 

150 

150

Nov.

147 

147 

147 

147 

147

145 

147 

152 

162 

162

162 

172 

164 

164

160

160 

164 

142 

133 

126

124 

124 

150 

215 

253

206 

246 

293 

230 

212

Dec.

200 

192 

175 

162 

180

170 

167 

162 

160 

138

120 

129 

142 

145 

*147

152 

147 

154 

142 

111

131 

154 

152 

142 

120

140 

147 

140 

142 

140 

131

Jan.

136 

118 

78 

b85 

blOO

129 

164 

186 

183 

178

152 

b!40 

b!25 

bl!5 

b!05

b!30 

b!50 

b!65 

b!80 

b200

b225 

b205 

197 

162 

120

120 

*147 

136 

107 

90 

74

Feb.

79 

85 

103 

136 

233

b350 

b300 

240 

192 

167

160 

162 

160 

157 

189

237 

296 

349 

379 

525

447 

433 

437 

57O 

680

668 

641 

535

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Ha-tr

June 

July 

Augu 

Sept

Wa

lendar year 1949

uary. ...................................

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

Mar.

495 

485 

560 

646 

674

652 

*608 

565 

505 

510

608 

636 

652 

575 

586

727 

909 

902 

864 

824

793 

824 

805 

709 

658

630 

619 

597 

575 

575 

592

Apr.

703 

824 

727 

5SO 

565

580 

602 

641 

658 

652

652 

721 

812 

864 

831

818 

,050 

,290 

,260 

,290

,340 

,380 

,330 

,210 

,080

,090 

,060 

963 

864 

745

Secondfoot -days

3,956 

5,103 

4,634

232,043

4,402 8,910' 

20,360 

27,182 

29,426 

56,270 

20,367 

4,316 

4,138

189,064

May

812 

857 

793 

733 

658

624 

555 

510 

456 

433

475 

586 

787 

1,000 

1,140

1,150 

1,230 

1,140 

1,020 

977

1,030 

1,260 

1,380 

1,240 

1,140

1,160 

1,240 

1,220 

1,270 

1,270 

1,280

Maximum

152 

293 

2OO

3,440

225 

680 

909 

1,380 

1,380 

3,000 

2.030 

208 

175

3,000

June

1,360 

1,410 

1,370 

1,430 

1,490

1,540 

1,540 

1,430 

1,340 

1,280

1,410 

1,630 

1,680 

1,660 

1,750

1,960 

2,490 

2,500 

2,520 

2,620

3,000 

2,760 

2,460 

2,390 

2,030

1 , 800 

1,760 

1 , 800 

1,870

1,990

July

2,030 

1,770 

1,520 

1,380 

1,230

1,160 

1,040 

878 

822 

787

662 

578 

535 

505 

470

445 

408 

386 

382 

368

346 

334 

314 

289 

264

240 

258 

264 

254 

230 

218

Minimum

85 

124 

111

59

74 

79 

485 

565 

433 

1,280 

218 

95 

108

74

Aug.

190 

170 

159 

170 

187

208 

187 

181 

184 

178

164 

139 

129 

144 

146

151 

127 

112 

102 

97

95

101 

101 

104 

101

108 

106 

123 

121 

121 

110

Kean

128 

170 

149

636

142 

318 

657 

906 

949 

1,876 

657 

139 

138

518

Sept.

110 

119 

114 

108 

110

112 

112 

121 

129 

139

144 

144 

141 

120 

137

144 

156 

164 

156 

156

159 

146 

137 

127 

123

139 

159 

164 

164 

175

Runoff in 

acre-feet

7,850 

10,120 

9,190

460,300

8,730 

17,670 

40,380 

53,910 

58,370 

111,600 

40,400 

8,560 

8,210

375,000

Peak discharge (base, 1,1OO sec.-ft.).--Apr. 22 (6 to 7 a.m.) 1,420 sec.-ft.; May 17 (3 a.m.) 

1,320 sec.-ft.; May 23 (2 a.m.) 1,610 sec.-ft.; June 21 (4 to 5 a.m.) 3,200 sec.-ft.; July 1 (1 a.m.) 

2,350 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. Shifting-control method used May 22 to June 9.
200 POWDER RIVER BASIN

Wolf Creek near North Powder, Oreg.

Location.--Water-stage recorder, lat. 45°03', long. 118°01', In SEij sec. 11, T. 6 S., R. 

3B K., 5 miles northwest of North Powder.

Drainage area.--32.9 square miles.

Records available.--May 1913 to July 1914 (incomplete), September 1946 to September 1950.

Extremes.--Maximum discharge during year, 300 second-feet May 15 (gage height, 3.88 feet); 

minimum, 0.3 second-foot Sept. 11.

1913-14, 1946-50: Maxim discharge, 433 second-feet May 23, 1948 (gage height, 4.46 

feet); minimum, 0.2 second-foot Sept. 12-14, 1948.

Rating tables, water year 1949-50, except periods of ice effect

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

(Shifting-control method used Oct. 7 to Nov. 15, May 10 to July 24)

1.6

1.7

L.9

2.0

Oct. 1 to Apr. 1

2.1

i 2.2 

> 2.3 

i 2.4

Apr. 2 to Sept. 30

1.6

1.7

1.8

1.9

2.0

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

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1 5 

1.5 

1.5 

1.5 

2.1

2.2 

2.4 

2.1 

2.1 

2.2

2.2

2.4 

2.9 

2.7 

2.7

2.5 

2.5 

2.5

2.2

2.4 

2.5 

2.5 

2.5

2.5

2.5 

2.5 

2.9 

3.7 

2.9 

2.7

Nov.

3.1 

2.9 

2.7 

2.7 

2.7

2.7 

2.7 

3.7

i!g

1.9 

2.2 

2.2 

1.9 

1.7

bl.5 

bl.5 

bl.5 

bl.5 

bl.5

b2 

b3

7.2 

11 

8.3

8.3 

16 

16 

9.1

9.9

Dec.

8.7 

7.9 

3.3 

4.8

6.3

6.3 

5.1 

3.9 

b3.5 

b3.5

b3.5 

b3.5 

b3.5

*b4 

 4.1

.1 

.1 

.3 

b 

b

.3 

.3

.7

.3

 .3 

.3 

.3 

.3 

.5

Jan.

4.3 

b4 

b4 

b4 

b3.5

b 

.1 

.1 

.1 

.9

.1 

.9 

b3.5 

b3.5 

b3.5

b3.5 

b3.5 

b3.5 

b3.5 

3.9

4.1 

4.8 

4.5 

b4.5 

b4.5

b4 

*b4 

b4 

b4 

b3.5 

b3.5

Feb.

b4 

b5 

b5.5 

b6.5 

7.3

7.2 

6.3 

5.1 

4.8 

4.8

4.5 

4.5 

4.5 

4.5 

4.5

4.8 

5.1

4.8 

4.8 

4.8

4.8 

4.8 

5.1 

5.7 

7.2

9.1 

b9 

blO

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

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

Mar.

bll 

11 

11 

13 

14

 13 

12 

12 

12 

11

11 

10 

9.9 

9.1 

9.1

11

16 

16 

16 

15

15 

16 

15 

15 

14

14 

13 

13 

14 

14 

18

Apr.

38 

40 

33 

29 

31

33

33 

37 

39 

41

51 

66 

79 

73 

75

75 

1O6 

109 

111 

115

122 

15.4 

101 

90 

88

84 

85 

76 

71 

69

Secondfoot-days

73.5 

135.8 

139.5

9,319.7

121.8 

159.6 

404.1 

2,124 

3,620 

1,487 

492.3 

98.5 

37.7

8,893.8

May

79 

84 

76 

72 

68

63 

59 

63 

69 

82

108 

146 

192 

231 

242

231 

214 

172 

126 

108

113

136 

165 

124 

99

91 

92

85 

82 

79 

69

Maximum

3.7 

16 

8.7

263

4.8 

10 

18 

124 

242 

66 

32 

9.9 

2.1

242

June

65 

64 

58 

54 

51

51 

48 

45 

41 

40

45

52 

59 

66 

64

57

61 

55 

50 

49

52 

45 

43 

44

45

42

39 

36 

34 

32

July

32 

31 

27 

25 

24

23 

21 

21 

22 

21

19 

17 

15 

15 

15

14 

14 

13 

13 

13

12

11 

11 

9.4 

8.6

7.6 

6.2 

5.5 

6.6 

9.4 

10

Minimum

1.5 

1.5 

3.3

.8

3.5 

4 

9.1 

29 

59 

32 

5.5 

1.6 

.9

.9

Aug.

9.9 

d9 

d6 

3.7 

3.7

3.7 

3.5 

3.3 

3.7 

3.7

3.3

3.1 

3.1 

3.1 

3.0

3.0 

2.4 

1.9 

1.9 

1.9

1.6 

1.6 

1.9 

2.4 

2.4

2.3

2.1 

1.9 

1.9 

1.9

1.6

Mean

2.37 

4.53 

4.50

25.5

3.93

5.70 

13.0 

70.8 

117 

49.6 

15.9 

3.18 

1.26

24.4

Sept.

1.5 

1.5 

.3 

.3

.3

.2 

.0 

.0 

.0 

.9

.9 

.9

.9 

1.0

1.0

1.0 

1.0 

.9 

.9

1.0

1.2 

1.0 

1.2 

1.2 

1.3

1.9 

2.1

2.1 

2.1 

2.1

Runoff In 

acre-feet

146 

269

277

18,480

242 

317 

802 

4,210 

7,180 

2,950 

976 

195 

75

17,640

* winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record because of clogged inletE

for powder River near Haines.

discharge computed on basis of records
IMNAHA RIVER BASIN

Imnaha River abovc jt Creek, Orer

Drainage area. --98 square miles.

Records available .--October 1944 to September 1950.

Extremes. --Maximum discharge during year, 1,810 aecornl-feet June 30 (gage height, 4.19 

I'eet ) ; minimum, 18 second-feet Jan. 3.

1944-50: Maximum discharge, 2,400 second-feet May 27, 1948 (gaj;e heieht, 5.07 feet); 

minimum recorded, 14 second-feet Dec. 10, 1944.

Remarks. Records '-rood except those for periuds of ice effect, which are fair. No rejulatlon or diversion above station.

Rating table, water year 1949-50, , except period of ice effect

(gage height, in feet, and di rge, in second-feet)

0.4

.5

104

138

204

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

62

59

57

57

67

67

66

62

61

63

61

61

58

57

56

56

53

53

50

50

50

50

50

52

50

50

50

56

68

56

53

Nov.

50

50

49

43

48

47

47

48

58

54

54

56

52

49

48

48

48

43

48

46

47

47

53

74

89

76

125

117

88

83

-

Dec

75

71

56

67

74

63

62

61

*59

50

47

41

57

47

54

62

57

57

41

32

48

68

65

56

39

53

63

58

52

56

47

Jan

59

45

22

b30

42

58

68

67

58

53

47

46

b45

42

39

53

67

62

66

75

81

85

78

65

35

42

62

b50

b40

b33

b29

Feb

b35

b43

b58

b68

81

92

92

83

81

76

67

58

54

53

54

56

54

52

54

56

53

54

53

61

79

86

95

86

-

~

-

fo^-day-s

October . . ...... .... 1,761

November ..................... 1,795

December . ...... .... . 1.73R

Calendar year 1949 ..... 83,374

January ... ... .... ......... 1, £44

February . . . . . . . ... 1,834

March . .... ... . 2,440

April ....... .... . .... . . 6,042

May .... ......... ........... 15,906

June ........... . . ...... . . 28,731

July .......... ... . . .... 18,824

August ........ ...... . 4,994

September ....... . ....... . . 2,641

Water year 1949-50 . . ....... 88,350

Mar.

83

81

*76

76

88

94

89

85

79

75

71

65

68

65

62

65

94

107

100

90

86

89

81

79

75

74

72

68

66

66

71

Maximum

68

125

75

1,910

85

95

107

334

84C

1,610

1,410

241

106

1,610

Apr

106

150

127

115

112

115

120

131

138

138

148

173

222

212

197

199

236

247

250

276

314

334

234

261

252

250

250

236

217

222

-

May

Minimum

50

46

32

21

22

35

62

106

202

£00

109

75

22

Peak discharge (base, 800 sec . -ft . ) . --May 22 (10 p.m.) 944 se

sec. -ft.; June 21 (7 a.m.) 1,720 sec. -ft.; June 30 (8:30 p.m.) 

* .."inter discharge measurement made on this day.

270

279

255

238

222

212

202

207

207

225

285

385

498

581

648

660

670

576

511

520

621

774

840

750

704

738

786

768

756

762

756

June

816

860

860

912

370

950

786

665

600

610

687

780

828

834

886

,060

,370

,270

,270

,380

,610

,220

,030

892

726

676

7£2

931

1,140

1,350

July

1,410

1,

1,

1,

220

120

D60

1 , 030

998

305

322 Bie

744

63E

576

552

543

524

489

464

452

456

415

396

388

374

359

338

324

Per 

Mean square 

mile

56.8 0.580

59.8 .610

56.1 .572

H2, 2.33

53.0 .541

65.5 .£68

7B.7 .803

201 2.05

513 5.23

958 9.78

607 6.19

161 1.64

83. 0 .898

242 2.47

c.-ft.; Juni= 5 (11

l,aiO sec. -ft.

517

504

279

261

250

Aug

241

'36

= 25

217

225

212

94

L90

L82

178

173

]

L63

65

62

156

152

i

i

L48

44

40

138

134

i

'

31

27

34

123

122

]

]

]

]

20

17

14

10

109

Sept

106

104

101

100

98

9b

96

98

98

94

92

89

89

58

86

85

83

83

82

79

78

76

75

75

76

92

65

79

78

78

-

Runoff

Inches

0.67

.68

.66

31.65

6"

!70

.93

2.29

6.04

10.90

7.14

1.90

1.00

33.53

: 30 p.m.

Acre-feet

3,490

3,560

3,450

165,400

3,260

3,640

4,=4C

11,930

31,550

56 990

37^340

9,910

5,240

175,200

1,060

, 253646 O - 53 - 14
202 IMNAHA RIVER BASIN

Imnaha River at Imnaha, Oreg.

Location. Water-stage recorder, lat. 45°34', long. 116°51', in SW-f sec. 16, T. IN., R. 

4b E., at Imnaha, three-eighths of a mile downstream from Sheep Creek.

Drainage area.--70S square miles.

Records available.--June 1928 to September 1950.

Average discharge.--22 years, 460 second-feet.

Extremes.--Maximum discharge during year, 2,170 second-feet June 21 (gage height, 4.60 

feet); minimum, 41 second-feet Jan. 5 (gage height, 1.40 feet).

1928-50: Maximum discharge, 5,700 second-feet May 28, 1948 (gage height, 7.06 feet); 

minimum observed, 16 second-feet Nov. 22, 1931.

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

which are fair. Diversions above station for irrigation.

Hating tables, water year 1949-50, except periods of ice effect

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

fShiftlng-eontrol method used Apr. 13-19)

Oct. 1 to Feb. 4 Feb. 5 to Sept. 30

1.4 11 2.0 197 1.7 100 2.9 580 

1.5 59 2.2 269 1.9 154 3.4 930 

1.6 81 2.3 308 2.1 216 3.8 1,280 

1.8 134 2.3 292 4.2 1,680 

2.6 427 4.6 2,170

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

Day

1 

2

3 

4 

5

6 

7 

8 

S 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

131 

123 

117 

117 

131

146 

149 

137 

131 

149

134 

131 

131 

128

128

131 

131 

128

131 

128

134 

134 

131 

131 

128

128 

128 

131 

155 

143 

134

Nov.

131 

131 

128 

128 

128

126 

120 

123 

134 

149

131 

137 

131 

128 

126

123 

123 

123 

123 

120

120 

120 

146 

158 

180

167 

194 

288 

214 

197

Dec.

180 

174 

155 

131 

171

164 

155 

149 

*146 

134

125 

96 

128 

126 

134

149 

146 

149 

126 

101

101 

155 

164 

149 

98

109 

155 

158 

140 

134 

117

Jan.

140 

114 

b82 

b64 

50

b90 

b!30 

161 

146 

143

131 

120 

120 

112 

b80

b85 

112 

134 

a200 

a!90

*214 

232 

228 

194 

112

106 

b!95 

b!60 

b!35 

bllO 

b63

Feb.

b70 

b90 

bllO 

b!30 

154

a200 

a250 

a240 

a220 

a210

a200 

alSO 

alSO 

alSO 

alSO

alSO 

alSO 

alSO 

alSO 

alSO

alSO 

alSO 

a!90 

a 200 

a200

a250 

a300 

a400

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

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

Mar.

a380 

3350 

334 

334 

393

456 

432 

393 

356 

330

309 

272 

256 

252 

238

230 

276 

366 

370 

352

330 

348 

326 

326 

321

313 

313 

300 

276 

276 

292

Apr.

1, 

1, 

1,

Secondfoot-days

4,109 

4,347 

4,320

163,150

4,153 

5,394 

10,100 

21,736 

40,514 

46,250 

25,403 

6,958 

4,171

177,455

Peak discharge (base, 1,300 sec. -ft.). May 17 (5 a.m.

427 

689 

628 

558 

515

530 

530 

552 

580 

564

552 

634 

829 

829 

745

710 

829 

898 

890 

954

050 

150 

020 

850 

780

745 

745 

703 

640 

610

May

738 

850 

815 

801 

773

738 

710 

696 

696 

731

866 

1,140 

1,520 

1,750 

1,890

1,840 

1,910 

1,600 

1,340 

1,300

1,440 

1,780 

1,940 

1,740 

1,550

1,550 

1,660 

1,620 

1,550 

1,510 

1,470

Maximum

155 

288 

180

2,430

232 

400 

456 

1,150 

1,940 

2,090 

1,830 

326 

154

2,090

June

1,510 

1,590 

1,530 

1,570 

1,620

1,670 

1,520 

1,340 

1,240 

1,180

1,220 

1,330 

1,410 

1,390 

1,420

1,580 

1,910 

1,870 

1,800 

1,870

2,090 

1,940 

1,660 

1,560 

1,340

1,210 

1,240 

1,390 

1,540 

1,710

July

1,830 

1,680 

1,570 

1,490 

1,410

1,370 

1,240 

1,140 

1,080 

1,070

914 

815 

745 

724 

689

647 

604 

580 

604 

536

505 

490 

475 

451 

432

413 

408 

398 

384 

366 

343

Aug.

326 

305 

300

292 

296

305 

276 

264 

252 

248

238 

234 

227 

227 

220

216 

210 

200 

194 

190

187 

184 

178 

187 

197

178 

175 

172 

166 

160 

154

Minimum Mean

117 133 

120 145 

96 139

90 447

50 134 

70 193 

230 326 

427 725 

696 1,307 

1,180 1,542 

343 819 

154 224 

123 139

50 486

) 2,010 sec. -ft. j May 23 (3 a.m.)

Sept.

151 

148 

146 

137 

140

140 

143 

143 

151 

143

140 

137 

137 

140 

137

137 

137 

137 

134 

132

129 

129 

126 

123 

126

148 

154 

143 

140 

143

Runoff In 

acre -feet

8,150 

8,620 

8,570

323,600

8,240 

10,700 

20,030 

43,110 

80,360 

91,740 

50,390 

13,800 

8,270

352,000

2,080 sec.-

ft.; June 21 (7:30 a.m.) 2,170 sec.-ft.; July 1 (4 to 5 a.m.) 2,050 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for Imnaha 

Hiver above Oumboot Creek.

b Stage-discharge relation affected by ice.
SALMON RIVER BASIN 203

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 from Lost 

Creek, and 2? miles southeast of Obsidian.

Drainage area.--94.7 square miles.

Records available. --November 1940 to September 1950.

Extremes.--Maximum discharge during year, 532 second-feet June 22; maximum gage height, 

4.93 feet Jan. 14 (ice jam); minimum discharge, 6.1 second-feet Sept. 7, 8 (gage height, 

1.30 feet).

1940-50: Maximum discharge, 706 second-feet June 3, 1948; maximum gage height, 5.50 

feet probably between Jan. 27 and Mar. 1, 1949 (ice jam); minimum discharge, 2 secondfeet Sept. 7-11, 1942, Apr. 1, 1945.

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

which are poor. Several diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 195O

Day

1 

2 

3

4 

5

6

7

e

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29

30 

31

Oct.

26 

28 

28 

28 

32

31 

31 

31 

30 

33

35 

40 

39

38 

40

42 

41 

41 

41 

41

40 

39 

39

39 

39

39 

39 

42 

44 

42 

40

Nov.

40 

39

39 

39

38

38 

28 

39

40

38

37 

37 

37 

27 

36

36 

35 

35 

34 

35

*31 

30 

35 

44 

37

33 

61

60 

37

38

Dec.

33 

32 

28 

32 

33

29 

27 

26 

26 

23

22 

21 

23 

22 

21

24 

24 

24 

24 

22

24 

25 

26 

26 

25

26 

26 

25 

25 

25 

25

Jan.

24 

24 

21 

20 

19

20 

22 

23 

23 

23

24 

25 

24 

23 

22

22 

24 

25 

26 

28

*h34 

35 

33 

30 

27

25 

26 

25 

25 

25 

25

Feb.

25

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-5O .......................

Mar.

25

*23 

20 

23 

25

Apr.

26 

27 

23 

25 

25

24 

24 

24 

23 

23

24 

24 

26 

28 

28

28 

31 

35 

34 

37

51 

66

58 

48 

53

52 

52 

49 

46 

42

Secondfoot-clays

1,138 

1,153 

794

23,215.9

772 

700 

766 

1,057 

5,840 

1O,208 

4,655 

375.8 

1,071.3

28,530.1

May

46 

42 

39 

39 

38

39 

37

38 

38 

42

52 

69 

98 

14O 

183

2O4 

243 

237 

199 

201

257 

337 

379 

352 

327

320 

348 

375 

363 

379 

379

Maximum

44

61 

33

395

66 

379 

486 

403 

35 

55

486

June

395 

4O7 

348 

352 

379

416 

420 

360 

296 

274

274 

290 

271

280 

284

299 

356 

367 

367 

411

45O 

486 

416 

316 

259

237 

243

268 

320 

367

July

403 

403

352 

345 

330

310 

296 

262 

229 

234

206

163 

138 

127 

115

106 

88 

76 

69 

62

54 

44

41 

39 

36

31 

22 

20 

19 

19 

16

Minimum

26 

30

4.1

23 

37 

237 

16 

6.9 

6.1

6.1

Aug.

12 

12 

13 

12 

34

35 

19 

12 

12 

12

12 

12 

12 

12

11

10 

10 

10 

10 

9.4

9.4 

9.4

9.1 

8.8 

8.8

8.8 

8.5 

8.5 

8.5 

7 .7 

6.9

Dean

36.7 

38.4 

25.6

63.6

24.9 

25 

24.7 

35.2

188 

340 

150 

12.1 

35.7

78.2

Sept.

6.9

6.6 

6.6 

6.6 

6.6

6.3

6.1 

6.6 

18 

36

55 

50 

48 

48 

47

48 

49 

50 

46 

46

44 

44 

44 

44 

44

55 

53 

49 

49 

52

Runoff In 

acre-feet

2,260 

2,290 

1,570

46 , 050

1,530 

1,390 

1,520 

2,100 

11,580 

20,250 

9,230 

745 

2,120

56,580

* Winter discharge measurenent made on this day.

h Computed from staff-gage reading.

Note.--Stage-discharge relation affected by Ice Dec. 7 to about Mar. 15. No gage-height record 

Dec. 24, 25, 3O; Jan. 3, 4, Jan. 11-20, Jan. 22 to Mar. 27, Sept. 24, 25; discharge computed on basis 

of weather records and other records for Salmon River stations.
Salmon River below Valley Creek, at Stanley, Idaho

Location.--Water-stage recorder, lat. 44°14', long. 114°55', in SE^SE^ sec. 34, T. 11 II.,

 R. 13 E., three-quarters of a mile downstream from Valley Creek and 1^ miles northeast

of upper 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 1950.

Average discharge.--25 years, 619 second-feet.

Extremes.--Maximum discharge during year, 3,400 second-feet June 22 (gage height, 3.47 

I'eet); minimum daily, 250 second-feet Jan. 5.

1925-50: Maximum discharge, 5,020 second-feet June 27, 1927 (gage height, 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 period of no gage-height record, which are fair. 

Diversion? above static.i for irrigation.

Discharge, in second-feet, water year October 1949 to September 195O

Day Oc t. De Jan Feb Apr May June July Sept

331

3d7

331

341

541

336 

34b

424

303

310

310

310

381

521 

3 It 

316 

331 

326

4E2 

704 

704

458

330

330

310

330

340

340 

350 

34O 

330

511

5t)4

330

340

363 

3b9 

541

331 

341 

*341 

331 

341 

356

513

519

511

495

495

488

472

458

43d 

424 

424 

418

534

534

Second 

foot-days

Per 

square 

mile

October . 

November 

December

424

704

387

Calendar year 1949

January . . 

February 

March . . 

April ....

May ......

June .....

July .....

August . . . 

September

470 

4OO

358

250

320

452

418

336

348

335

542

1,413

2,451

1,716

618

531

.621 

1.01 

2.64 

4.5G 

3.21 

l.lt

.99;

Water year 1343-5C 3,340 250 1.47

Peak discharge (tase, 1,700 sec.-ft). May 17 (1O p.m.) 2,130 sec.-ft.; June 7 

ft.; Uune 22 (3to4p.m.) 3,400 see.-ft.; July 2 (12:30 p.m.) 3,260 see.-ft.

* Winter discharge nsasurement made on this day.

Note.--No ^age-height record Dec. 11 to Jan. 19, Jan. 21 to Feb. 12; discharge 

of weather records and records for other Salmon River stations.

computed on basis
SALMON RIVER BASIN

Salmon River below Yankee Fork, near Clayton, Idaho

205

Drainage area.--841 square miles.

Records available.--October 19"! to September 1950.

Average discharge.--37 years (1922-24, 1925-50), 905 second-feet.

Extremes.--Maximum discharge during year, 5,770 second-feet June 22 (gage height, 3.37 

feet); minimum daily, 330 second-feet Dec. 1C, .Tan. 5; minimum gage height recorded, 

2.12 feet Mar. 29.

1921-50: Maximum discharge, 3,000 second-feet (estimated) June 27, 1927; minimum, 

1GO second-feet (estimated) Nov. 25-30, 1929.

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

which are fair. All diversions atove station for irrigation are above Stanley.

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

Day

1 

2 

3

4 

5

6

7

a

9 

10

11

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

447 

457 

457 

457 

532

537 

511 

5 Ob 

491 

522

51o 

527 

511 

491 

501

511 

491 

49o 

431 

491

4se

481 

481 

476 

476

476 

476 

491 

552 

501 

481

Nov.

481 

481 

471 

4tb 

462

457 

457 

481 

501 

486

48b 

491 

4fa2 

47 b 

457

471 

452 

428 

414 

*418

414 

414 

491 

b58 

716

615 

876 

1,140 

792 

727

Dec

61O 

620 

491 

462 

527

532 

501 

49b 

466 

a420

a370 

a330 

a400 

3390 

a370

a420 

437 

447 

442 

403

442 

447 

457 

457 

423

457 

457 

442 

433 

442 

428

Jan

433 

423 

390

b350 

b330

b350 

b380 

409 

404 

404

414 

423 

423

404 

b380

C390 

433 

437 

*462

501

605 

620 

573 

516 

476

b420 

b440 

b430 

b430 

b410 

0400

Feb

b410 

b410 

D410 

b430 

522

471 

452 

447 

442 

428

437 

423 

428 

483 

423

423 

414 

390 

395 

409

386 

400 

409 

414 

462

462

471 

4Z3

"°"th foo^days

Ooto 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar y

ary . . 

"ua.ry

ear 194

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

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

ember .

15,320 

16,141 

14,025

552,260

13,460 

12/074 

12,373 

23,359 

75,449 

130,510 

77, 190 

25,122 

20,429

ter year 1949-50. ......... 435,352

Peak discharge (base, 2,350 sec. -ft.). Me

sec. -ft. June 22 (9:30 p.m.) 5,700 sec. -ft;

Sainto

Mar,

404 

423 

437 

433 

437

437 

305 

418 

423 

423

404 

331 

377 

414 

*403

390 

437 

437 

433 

418

414 

423 

403 

428 

428

404 

418 

414 

372 

400 

433

Maximum

552 

1.14C 

62C

4,87C

b2C 

52Z 

437 

l,4bC 

4.16C 

5,73C 

4.96C 

1.17C 

91t

5,73C

Apr.

471 

532 

491 

452 

457

7b 

81 

86 

71 

71

491 

537 

647 

727

679

743 

839 

934 

928 

1,040

1,330 

1,450 

1,280 

1,050 

992

992 

1,040 

986

834

May

351 

934 

911 

922 

905

859 

854

894 

957

1,180 

1,540 

2,050 

2,600 

2,990

3,070 

3,260 

3,230 

2,660 

2,400

2,630 

3,280 

3,950 

4,020 

3,650

3,570 

3,830 

4,140 

4,080 

4,030 

4,160

Minimum

447 

414 

350

327

330 

386 

372 

452 

854 

3,530 

1,060 

594 

542

330

June

4,270 

4,400 

4, 140 

4,lbO 

4,530

4,390 

5,120 

4,600 

3,930 

3,b60

3,530 

3,730 

3,670 

3,650 

3,850

4, 100 

4,460 

4,640 

4,700 

4,920

5,360 

5,730 

5,500 

4,850 

4,170

3,700 

3,630 

3.M40 

4,210 

4,570

Mean

494

538 

452

965

434 

431 

415 

779 

2,434 

4,35O 

2,490 

810 

681

1,134

iy 17 (11:30 p.m.) 3,780 sec. 

July 2 (8:00 a.m.) 4,970 sec

on River stations. 

Stage-discharge relation affected by ice.

July

4,830 

4,9bO 

4,710 

4,430 

4,180

3,960 

3,780 

3,600 

3,320 

3,210

3,050 

2,750 

2,480 

2,300 

2,190

2,090 

1,950 

1,830 

1,730 

1,620

1,500 

1,480 

1,420 

1,370 

1,320

l,EdO 

1,240 

1,200 

1,170 

1,120 

1,060

Per 

square 

mile

0.587 

.640 

.537

1.15

.516 

.512 

.493 

.926 

2.89 

5.17 

2.96 

.963 

.810

1.42

Aug

1,020 

980 

974 

974 

1,150

1,170 

1,030 

968 

933 

905

87o 

871 

837 

809 

787

765 

743 

738 

710 

711

700 

683 

674 

673 

668

t47

642 

636 

620 

610 

594

Sept

584

578 

563 

558 

547

542 

542 

636 

916 

843

754 

716 

705 

727

c95

700 

722

792 

738 

705

679 

674 

674 

647 

o42

7Z2 

760 

689 

673 

700

Runoff

Inches

0.68 

.71 

.62

15.58

.60 

.53 

.57 

1.03 

3.34 

5.77 

3.41 

1.11 

.90

19.27

Acre-feet

30,330 

32,020 

27,820

698,700

26,700 

23,950 

25,530 

46,330 

143,700 

258,900 

153,100 

43,830 

40,520

864,800

ft.; June 7 (5 p.m.) 5,200 

-ft.
S06

3al:.;or River near Cnallis, laahc

Drainage area.--1,800 square mile;:'.

Records available.--October 1923 to September 1950.

Average discharge .--22 years, 1,339 second-feet.

Extremes.--Maximum discharge daring year, 7,920 second-feet Jane 22 (gage height, 7.14 

feet); minimum, 374 second-feet Dec. 12 (gage height, 1.56 feet).

1928-50: Maximum discharge, 10,500 second-feet May 30, 1943 (gage height, 8.07 

feet); minimum, 160 eecond-feet Dec. 14, 1940.

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

inversion above station for irrigation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

72b

72t

726

715

742

854

788

788

770

783

788

794

788

759

754

7b4

742

748

748

748

742

72b

726

720

720

720

720

720

800

764

720

Nov

726

720

7O4

704

698

688

t88

7C4

732

754

715

732

704

698

693

£93

*693

b71

644

63d

b2£

blO

710

33fa

981

903

384

1,640

1,140

1,050

-

Dec

903

834

782

610

720

794

742

72b

710

£54

545

489

590

575

545

638

638

643

660

560

t Ib

660

688

688

575

649

632

666

610

6bb

60S

Jan.

649

627

536

521

507

b460

tsoo

i540

0590

610

633

61b

632

61C

560

0560

0580

*c590

i620

788

866

968

890

794

b49

bbSO

b600

E580

bSBO

b550

b530

Month

October . . . . ........ ...

November ... . . ........ ....

December . . . ..... .....

Calendar year I94a ....... .

January ... . .........'. .....

February ... . . ...... ...... 

March . . ..... . .... ....

April ......... . .....

May ............ . . ....

June . . ..... .......... ...

July .... . . .......... . . .

August .... ........... .....

September . ..... . .......

Water year 1949-50 . . ......

Feb

054C

b>540

0540

b76

754

764

720

6E4

b98

c44

t76

b44

660

676

£82

688

b82

616

605

649

595

610

638

L8S

748

759

764

baa

_

-

Secondfoot days

23,334

23 355

20*519

51b,054

19,321

18,598 

19,775

33,051

95,180

175,750

107,210

37,971

31,174

605,238

Mar.

b!6

649

b76

676

720

742

b32

632

b49

b44

b05

575

550

t38

*o27

605

649

710

£b6

b38

b27

b38

622

627

b49

bib

b22

b05

5bO

bOO

710

Maximum

854

l,b4C

903

6,630

968

764 

742

1,900

5,510

7,740

6,830

1,780

1,380

7,740

Apr.

855

908

770

699

684

726

753

764

732

721

737

803

938

1,060

931

,010

,220

,320

,280

,370

,690

,900

,730

,4bO

,380

,320

,330

,350

,2bO

,200

-

May

1,240

1,520

1,200

1 , 2 10

1,200

l.lbO

1,110

1,140

1,140

1,160

1,320

I,b70

2,200

2,950

3,570

3,740

3,930

4,220

3,440

3,020

3,100

3,900

4,970

5,390

4,780

4,580

4,920

5,420

5,350

5,390

5,510

Minimum

715

olO

489

436

460

540 

550

684

1,110

4,760

1,580

926

849

460

June

5,b40

5,970

5,510

5,460

5,990

6,730

6,970

6,380

5,350

4,840

4,760

5,030

4,900

4,860

5,050

5,420

5,990

6,380

6,400

6,610

7,210

7,740

7,450

6,540

5,600

4,d20

4,820

5,160

5,760

b,310

-

Mean

753

778

662

623

664 

638

1,102

3,070

5,658

3,458

1,225

1,039

I,b58

July

b , 6 10

b,330

b,470

6,100

5,670

5,420

5,180

4,920

4,510

4,370

4,240

3,760

3,410

3,160

3,000

2,880

2,710

2,540

2,440

2,320

2,220

2,140

2,040

1,980

1,910

1,860

1,810

1,750

1,720

1,660

1,5,30

Per

square 

mile

0.418

.432

.368

.34b

.369 

.354

.b!2

1.71

3 25

1.92

.681

.577

.921

Aug

1,

1,

1,

1,

530

480

450

460

1,610

1,

1,

1,

1,

780

530

470

420

1,370

1,320

1,

1,

1,

320

280

250

1,210

1,160

1,

1,

1,

14O

110

D90

1,060

1,050

1,

1,

1,

D30

310

DID

1,010

994

381

375

357

338

926

Sept

914

902

872

861

855

849

849

1,030

1,380

1,330

1,190

1,140

1,110

1,120

1,100

1,070

1,070

1,140

1,100

1,060

1,030

1,020

1,030

1,000

938

1,020

1,140

1,040

994

1,020

-

Runoff

Inches

0.48

.48

.42

10. b5

.40

.38 

.41

.68

1.97

3.63

2.22

.78

.64

12.49

Ac re- feet

46,280

46,320

40,700

1,024,000

3b,320

36,890 

39,220

65,560

188,800

348,600

212,600

75,310

61,830

1,200,000

Peak discharge (base, 5,800 see.-ft.). May 18 (6 a.m.) 4,700 sec.-ft.; June 7 (2 and 4 p.m.) 

7,090 sec.-ft.; June 22 (7 a.m.) 7,920 sec.-ft.; July 2 (6 a.m.) 7,070 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SALMON RIVER BASIN

Salmon River at Salmon, Idaho

Location.--Water-stage recorder, lat. 45°11', long. 113°54', in sec. 6, T. 21 M., R. 22 

K., just upstream from Lemhi River, 1,000 feet downstream from island, and threeeighths of a mile downstream from highway bridge at Salmon.

Drainage area.--3 ,760 square miles.

Records available.--April 1912 to September 1916, July 1919 to September 1950.

Average discharge.--33 years (1913-16, 1920-50), 1,824 second-feet.

Extremes. Maximum discharge daring year, 8,930 second-feet June 22 (gage height, 6.59 

reetj; minimum daily, 770 second-feet Jan. 5; minimum gage height, 2.50 feet, probably 

Jan. 5.

1912-16, 1919-50: Maximum discharge observed, 16,400 second-feet June 12, 1921 

(gage height, 9.35 feet, staff gage at site 700 feet upstream); minimum, 242 secondfeet Jan. 8, 1937 (gage height, 1.50 feet).

Remarks. Records excellent except those for periods of ice effect or no gage-height reeora, which are fair. Diversions above station for irrigation.

Revisions. W 1043: Drainage area.

Rating table, water year 1949-50, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

2.5 770 3.6 2,040 5.5 5,960 

2.8 1,030 4.0 2,700 6.0 7,28O 

5.0 1,240 4.5 3,660 6.6 8,960 

5.5 1,610 5.0 4,730

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,070 

1,O7O 

1,090

1,150 

1,130

1,180 

1,260 

1,250 

1,260 

1,280

1,290 

1,280 

1,310 

1,320 

1,310

1,310 

1,310 

1,300 

1,310 

1,310

1,310 

1,300 

1,290 

1,290 

1,290

1,290 

1,280 

1,280 

1,300 

1,360 

1,310

Nov.

,300 

,290 

,280 

,280 

,260

,250 

,240 

,240 

,280 

,310

,31O 

,280 

,300 

,250 

,250

,230

,230 

,220 

,170 

,160

,140 

,140 

,160 

,300 

,450

,540 

,470 

,650 

,040 

,710

Dec.

1,600 

1,470 

1,440 

1,290 

1,170

1,310 

1,520 

1,290 

1,260 

1,240

1,050 

1,000 

877 

994 

976

985 

1,150 

1,160 

1,240 

1,170

1,000 

1,130 

1,310 

1,290 

1,200

1,050 

1,240 

1,340 

1,200 

1,160 

1,160

Jan.

1,110 

1,050 

950 

860 

770

820 

880 

980 

1,120 

1,110

1,100 

1,030 

960 

900 

8 SO

900 

940 

940 

,000 

* ,230

,320 

,410 

,460 

,320

,140

913 

967 

930 

920

850 

830

Feb.

840 

340 

840 

,100 

,380

,500 

,470 

,4-50 

,420 

,350

,250 

,110 

,080 

, 100 

,100

,150 

,140 

,130 

,060 

,080

,090 

,070 

,070 

,120 

,280

,360 

,350 

,310

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

1,200 

1,140 

1,160 

1,200 

1,240

1,290 

1,200 

1,090 

1,090 

1,100

1,070 

1,040 

1,000 

1,020

1,030

*1,070 

1,070 

1,140 

1,150 

1,100

1,070 

1,070 

1,070 

1,050 

1,070

1,070 

1,050 

1,050 

1,020 

985 

1,030

Apr.

,180 

,440 

,340 

,180 

,110

,100 

,140 

,180 

,180 

,130

,120 

,140 

,210 

,340 

,430

,360 

,420 

,640 

,690 

,620

,760 

,120 

,250 

,020 

,750

,610 

,540 

,560 

,480 

,410

Secondfoot-days

39,070 

39,710 

37,072

688,887

51,590 

33,040 

33,985 

45,450 

100,880 

203,790 

127,660 

47,900 

45,730

781,877

May

1,350 

1,430 

1,400 

1,540 

1,320

1,300 

1,240 

1,200 

1,180 

1,210

1,210 

1,380 

1,810 

2,570 

3,440

3,930 

4,140 

4,530 

4,330 

3,700

3,480 

3,870 

4,890 

5,570 

5,520

5,100 

5,130 

5,620 

5,930 

5,830 

5,930

Maximum

1,360 

2,040 

1,600

7,530

1,460 

1,500 

1,290 

2,250 

5,930 

8,820 

7,340 

2,240 

1,940

8,820

June

6,060 

6,300 

6,320 

6.O4O 

6,300

7,030 

7,780 

8,040 

7,030 

6,120

5,750 

5,910 

6,120 

5,880 

5,930

6,250 

6,690 

7,200 

7,450 

7,590

8,010 

8,680 

8,820 

8,260 

7,280

6,350 

5,860 

5,860 

6,190 

6,690

July

7,060 

7,340 

7,250 

6,870 

6,530

6,250 

6,010 

5,830 

5,470 

5,150

5,200 

4,780 

4,560 

4,020 

5,760

3,560 

3,400 

3,200 

3,010 

2,900

2,770 

2,660 

2,570 

2,470 

2,400

2,290 

2,220 

2,160 

2,080 

2,070 

2,020

Aug.

,940 

,830 

,780 

,820 

,940

,240 

,180 

,960 

,850 

,810

,750 

,690 

,670 

,600 

,540

,460 

,400 

,360 

,340 

,310

,300 

,290 

,260 

,230 

,230

,230 

,210 

,200 

,180 

1,160 

1,140

Minimum Mean

1,070 ,260 

1,140 ,324 

877 ,196

850 ,887

770 ,019 

840 ,180 

985 ,096 

1,100 ,448 

1,180 ,254 

5,750 ,793 

2,020 ,118 

1,140 ,545 

1,060 ,458

770 2,142

Sept.

,120 

,110 

,090 

,080 

,070

,060 

,060 

,110 

,530 

,940

,820 

,670 

,610 

,580 

,600

,580 

,570 

,620 

,690 

,620

,580 

,550 

,520 

,510 

,460

,450 

,490 

,600 

1,540 

1,540

Runoff In 

acre-feet

77,490 

78,760 

73,530

1,366,000

62,660 

65,530 

67,410 

86,180 

200,100 

404,200 

253,2OO 

95,010 

86,740

1,551,000

* Winter discharge measurement a 

Note.--stage-discharge relation

ord Jan. 3-19; discharge computed

stations).

ade on this day.

affected by ice Jan. 2-21, Jan. 28

on basis of weather records and rec

;o Feb. 8 (no gage-height 

urds for other Salmon Rive
208 SALMON RIVER BASIN

Salmon River near Shoup, Idaho

Location.--Staff gage, lat. 45°19'30", long. 114°25', in sec. 13, T. 23 N., R. 17 E., 200 

reet downstream from highway bridge, 1 mile downstream from Panther Creek, and 8 miles 

southwest of Shoup. Datum of gage is 3,169.96 feet above mean sea level (unadjusted).

Drainage area. 6,270 square miles.

Records available. October 1944 to September 1950.

Extremes.--Maximum discharge observed during year, 11,900 second-feet June 22, 23 (gage 

neignt, 6.00 feet); minimum daily, 990 second-feet Jan. 5.

1944-50: Maximum discharge observed, 16,900 second-feet June 4, 1948 (gage height, 

7.90 feet); minimum daily, that of Jan. 5, 1950.

Remarks. Records fair. Gage read once daily. Diversions above station for irrigation.

Rating table, water year 1949-50, except periods of ice effect

(gage height, In feet, and discharge, In second-feet)

(Shifting-control method used Feb. 27 to June 23)

0.8 

1.0 

1.3

1.6 

2.0

1,200

1,410

1,790

2,220

2,840

2.5 

3.0 

4.0 

5.0 

6.0

3,780

4,850

7,100

9,450

11,900

Discharge, In second-feet, water year October 1949 to September 1950

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.

1,530 

1,560 

1,560 

1,660 

1,660

1,710 

1,710 

1,760 

1,820 

1,900

1,930

1,670 

1,820 

1,850 

1,920

1,930 

1,900 

1,900 

1,870 

1,350

1,850 

1,350 

1,820 

1,850 

1,850

1,820 

1,320 

1,850 

1,870 

1,870 

1,870

Nov.

1,850 

1,850 

1,850 

1,820 

1,820

1,820 

1,790 

1,790 

1,790 

1,850

1,870 

1,850 

1,820 

1,820 

1,790

1,760 

1,740 

1,740 

*1,710 

1,710

1,690 

1,C90 

1,710 

1,790 

2,040

2,220 

2,160 

2,190 

2,940 

2,370

Dec.

2,190 

2,130 

2,010 

1,820 

1,850

1,900 

1,850 

1,790 

1,790 

1,660

1,300 

1,300 

1,200 

1,300

1,530

el, 530 

1,760 

1,760 

1,790 

1,660

1,300 

1,530 

1,660 

1,760 

1,410

1,300 

1,530 

1,700 

1,520 

1,470 

1,490

Jan.

1,400 

1,350 

1,220 

1,100 

990

1,030 

1,120 

1,850 

1,440 

1,400

1,390 

1,320 

1,220 

1,150 

1,110

1,150 

1,200 

1,200 

1,350 

*"1,560

1,650 

1,750 

1,830 

1,600 

1,400

1,170 

1,200 

1,160 

1,140 

1,050 

1,000

Feb.

1,020 

1,000 

1,000 

1,350 

1,700

1,800 

1,900 

1,900 

1,800 

1,800

1,700 

1,650 

1,550 

1,600 

1,700

1,720 

1,710 

1,700 

1,600 

1,620

1,630 

1,610 

1,600 

1,800 

2,100

2,300 

2,200 

2,180

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber.... .................................

mber . ...................................

mber. ...................................

lendar year 1949 

ary

ter year 1949 50 .......................

Mar.

2,000 

1,780 

1,750 

1,780 

1,830

1,800 

1,920 

1,830 

1,860 

1,860

1,830 

1 , 650 

1 , 520 

1,520 

1,650

1,650 

*1,600 

1,750 

1,780 

1,700

1,650 

1 ,650 

1,650 

1,570 

1,520

1,570 

1,540 

1,520 

1,520 

1,520 

1,520

Apr.

1,650 

2,060 

2,200 

1,780 

1,700

1,720 

1,780 

1,920 

1,920 

1,780

1,750 

1,780 

1,890 

2,060 

2,180

2,180 

2,200 

2,320 

2,320 

2,360

2,500

2,730 

3,170 

2,990 

2,500

2,320 

2,200 

2,200 

2,180 

2,060

Secondfoot-clays

56,050 

56,840 

50,790

1,015,560

39,900 

47,240 

52,290

64,400 

139,750 

286,020 

160,770 

63,010 

60.870

1,077,930

May

1,920 

1,970 

1,330 

1,890 

1,920

1,830 

1,780 

1,700 

1,650 

1,650

1,650 

2,060 

2,420 

3,170 

4,610

5,270 

5,490 

5,930 

6,060 

5,490

4,630 

5,270 

e,620 

7,310 

7,540

7,310 

7,310 

8,000 

8,470 

8,230 

8,470

Maximum

1,930 

2,940 

2,190

11,400

1,830 

2,300 

2,000 

3,170 

8,470 

11,900 

6,730 

2,920 

2,760

11,900

June

8,230 

8,470 

8,710 

8,710 

8,470

9,680 

10,900 

11,400 

10,200 

e8,600

7,770 

8,710 

8,710 

8,950 

9,190

9,430 

9,880 

10,400 

10,900 

10,900

11,100 

11,900 

11,900 

11,100 

9,700

9.090 

8,490 

8,020 

8,020 

8,490

July

8,490 

8,730 

8,730 

8,490 

8,020

7,790 

7,560 

7 ,560 

7,100 

e7,100

6,640 

6,410 

5,730 

5,070 

4,850

4,630 

4,410 

e4,200

3,780 

3,580

3,380 

3,380 

3,190 

3,120 

3,010

2,840 

2,740 

2,680 

2,520 

2,520 

2,520

Minimum

1,530 

1,690 

1,200

1,200

990 

1,000 

1,520 

1,650

i.eso

7,770 

2,520 

1,520 

1,450

990

Aug.

2,430 

2,430 

2,220

62,250 

2,280

2,840 

2,920 

2,700 

2,700 

2,540

e2,500 

e2,400

2,380 

2,240 

2,080

1,940 

1,860 

1,780 

1,720 

1,670

1,650 

1,620 

1,600 

1,540 

1,540

1,540 

1,520 

1,520 

1,540 

1,540 

1,520

Mean

1,808 

1,895 

1,638

2,782

1 

1 

1

4

a 

5

,287 

,687 

,687 

147 

508 

534 

186 

033 

029

2,953

Sept.

1,520 

1,520 

1,520 

1,520 

1,520

1,490 

1,470 

1,450 

1,860 

2,760

2,540 

2,240 

2,240 

2,360 

2,360

2,360 

2,360 

2,240 

2,240 

2,300

2,180 

2,080 

2,080 

2,060 

2,060

2,000 

2,000 

2,240 

2,140 

2,160

Runoff In 

acre-feet

111,200 

112,700 

100,700

2,014,000

79,140

93,700 

103,700 

127,700 

277,200 

567,300 

318,900 

125,000 

120,700

2,138,000

* Winter discharge measurement made on this day, 

e Gage reading Inaccurate or not representative of 

ecords for other Salmon River stations. 

Note,--Stage-discharge relation affected by Ice Dec. 28 to Feb.

for day; discharge com
SALMON RIVER BASIN

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 feet 

downstream from Fall Creek, 2| miles northeast of French Creek post office, and 16 miles 

east of Riggins.

Drainage area.--12,270 square miles.

Records available. October 1944 to September 1950.

Extremes. Maximum discharge observed during year, 57,300 second-feet June 21 (gage height, 

L'b.4U feet); minimum observed, 2,490 second-feet Dec. 13 (gage height, 1.58 feet).

1944-50: Maximum discharge ocserved. 75,300 second-feet May 29~ 1948 (gage height, 

33.50 feet); minimum observed, 1,890 second-feet Dec. 12, 1944 (gage height, 1.44 feet).

Remarks.--Records excellent except those for days of rapidly changing stage and those for 

periods of ice effect or no gage-height record, all of which are good. Gage usually 

read twice daily except during August and September when it was read once daily. 

Amount of water diverted above station for irrigation is a negligible percentage of 

total flow.

Rating table, wate 

(gage height,

1.6 

2.0 

3.0 

4.0

year 1949-EO, except periods of ice effect 

a feet, and discharge, in second-feet)

6.0

8.0

11.0

14.0

Discharge, In second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

3,640

3,780

3,630

3,520

3,680

3,950

a4,150

a4,100

4,040

4,060

4,060

4,180

4,160

4,160

4,060

4,060

4,040

3,940

3,930

3,860

3,390

3,890

3,670

3,840

3,840

3,840

3,840

4,060

4,110

4,080

4,060

Nov.

3,920

3,890

3,540

3,800

3,750

3,700

3,700

3,700

3,720

3,960

3,960

3,840

3,820

3,820

3,770

3,680

3,650

3,650

3,630

3,360

3,230

3,210

3,210

3,160

5,660

5,580

5,360

7,290

7,310

6,810

-

Dec.

5,740

5,310

4,680

4,300

4,000

4,120

4,190

4,220

4,050

4,000

3,590

2,310

2,500

3,030

3,260

3,360

3,460

3,890

3,940

23,750

a3 , 500

d5,200

33,350

33,650

3 , 940

a3,700

a3,350

a3,450

3,720

3,640

3,560

Jan.

3,450

3,430

3,100

2,700

2,400

2,600

2,750

3,050

3,540

3,440

3,460

1,350

3,100

2,800

2,700

2.800

2.900

*2,900

3,000

3,250

3,900

5,200

5,710

5,240

4.630

3,950

3,650

3,450

3,200

2,900

2,700

Month

October .......................

November ......................

December ...... ...............

Calendar year 1943 .........

January .......................

February ......................

March .........................

April ....... .................

May . . ........................

June .................... .....

July ....................

August ...................... .

September ..................

Water year 1949-50 .........

Feb.

2,900

3,150

3,300

3,500

3,600

3,eOO

4,000

4,300

4,200

3,900

3,700

3,600

3,700

3,600

3,700

3 , 300

4,000

4,100

4,110

4,070

4,010

3,950

3,960

4,040

4,620

5,780

6,490

6,240

_

_

-

Secondfoot-days

122,320

126,000

117,300

. 3,531,110

105,310

114,120

136,730

240,470

701,810

1,355,900

618,270

191,330

139,860

3,969.420

Mar.

5,700

5,020

4,790

*4,660

4,690

5,190

5,300

4,900

4,570

4,500

4,290

3 , 960

3,720

3,690

4,010

4,040

4,010

4,430

4,720

4,690

4,510

4,530

4,420

4,280

4,220

4, ISO

4,110

4,070

3,950

3,830

3,810

Maximum

4,180

7,310

5,740

60,400

5,710

6,490

5,700

13,200

41,600

56,400

43,800

6,930

5,260

56,400

Apr.

4,300

5,680

6,550

6,040

5,430

5,570

5,500

6,010

6,240

6,080

5,980

6 , 220

7,050

8,020

8,230

7,960

8,210

8,670

9,450

9,570

10,200

13.200

12,700

11,600

10,500

9,930

9,450

9,200

8,770

8,360

-

May

8,180

8,460

8,580

7,990

7,800

7,630

7,340

7,230

7,240

7,390

7,680

9,390

13,100

18,800

25,900

29,600

31,600

31,500

28,300

24,500

22,700

27.100

37,000

41,000

37,900

36,400

38,200

40,700

41,600

40,500

40,500

Minimum

3,520

3,180

2,500

2,500

2.400

2,900

3,690

4,300

7,230

33,100

8,330

4,300

3,720

2 , 400

June

41,600

43,300

4E , 900

42,400

45,200

49,500

50,100

46 , 500

43.000

39,100

33,400

40,600

42,000

41.EOO

42,800

46,200

50,200

50,500

51,700

54,800

56,400

33,000

49,200

48,400

45,100

39.200

38,100

38,900

40 , 700

42,900

-

Mean

3,946

4,200

3,784

9,674

3.397

4,076

4,411

8,016

22,640

45,200

19,940

6,172

4,662

10,680

July

43,800

42 ,900

40,700

36 , 100

35,600

33,400

31,000

28,600

26,500

24,400

23.100

21,300

19,100

17,700

16,400

15,300

14,400

13,500

13,000

12,400

11,700

11,200

10,700

10,300

9,950

9,560

9,200

6,890

8,690

8,550

8,330

Per 

square 

mile

0.322

.342

.306

.768

.277

.332

.359

.653

1.65

3.68

1.63

.503

.380

.687

Aug.

8,

7,

7,

7,

010

670

400

340

8,350

8,930

8,

7,

t

520

300

130

,310

,110

,

,

?

330

730

140

,160

,920

,

,

t

380

150

E90

,090

,950

,(

,£

,£

570

20

20

,820

^ , "

t f

i c

' ',4

20

90

90

60

30

,300

Sept.

4,230

4,160

4,080

3,940

3,940

3,920

3,620

3,720

4,040

4,590

4,950

5,230

4,950

4,950

4,980

4,980

5,090

5,090

5,120

5,230

5,090

4,820

4,720

4,590

4,530

4,640

5,260

5,230

5,060

4,910

-

Runoff

Inches

0.37

.38

.36

10.70

.32

. 35

.41

.73

2.13

4.11

1.87

.56

.42

IE. 03

Acre-feet

242,600

249,900

232,700

7,004,000

208 , 900

226,400

271,200

477,000

1,392,000

2,689,000

1,226,000

379,500

277,400

7,873,000

weather records and
210 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 Canfleld-Joseph highway 

bridge, and 1 mile southwest of Whitebird Datum of gage is 1,412.65 feet above sea 

level, datum of 1929, supplementary adjustment of 1947.

Drainage area. 13,550 square miles, including that of Whitebird Creek.

Records available.--August 1910 to September 1917, October 1919 to September 1950.

Average discharge.--38 years, 10,550 second-feet.

Extremes.--Maximum discharge during year, 68,200 second-feet June 22 (gage height, 28.00 

feet); minimum, 2,490 second-feet Jan. 5 (gage height, 11.44 feet).

1910-17, 1919-50: Maximum discharge, 103,000 second-feet June 3, 1948 (gage height, 

32.95 feet); minimum, 1,580 second-feet Dec. 11, 1932 (gage height, 10.23 feet), from 

rating curve extended below 2,200 secnnd-feet.

Maximum stage known, about 37.5 feet, present datum, June 1894 (discharge, 120,000 

second-feet).

Remarks. Records excellent except those for Jan. 13 to Feb. 25, which are good. Amount 

or water diverted above station for irrigation is a negligible percentage of total 

flow.

Revisions (water years). W 753: 1332. W 1043: Drainage area.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

,9 8O 

,120 

,030 

,920 

,950

,320

,630 

,560 

,540 

,480

,500 

,500 

,540 

,500 

,450

,410 

,380 

,320 

,310 

,170

,190 

,220 

,220 

,200 

,170

,190 

,170 

,200 

,390 

,560 

,480

Nov.

4,320 

4,2OO 

4,14O

4,100 

4,080

4,030 

4,000 

3,980 

4,120 

4,360

4,390 

4,310 

4,290 

4,220

4, ISO

4,120 

4,070 

4,020 

*3,950

3,810

3,700 

3,590 

3,590 

4,270 

5,710

6,240 

6,140 

7,570 

8,080 

7,420

Dec.

6,640 

5,940 

5,540 

4,930 

4,500

4,470 

4,790 

4,750 

4,650 

4,470

4,150 

3,540 

3,070 

3,240 

3,570

3,500 

3,590 

3,900 

4,310 

4,170

4,000 

3,590 

3,770 

4,100 

4,340

4,140 

3,730 

3,830 

4,080 

4,080 

3,920

Jan.

3,930 

3,730 

3,440 

3,070 

2,660

2,850 

3,040 

3,420 

3,900 

3,920

3,830 

3,640 

b3 , 400 

b3 , 100 

b3,000

b3 , 100 

b3 , 200 

b3,200 

b3 , 400 

b3,700

4,200 

5,440 

6,380 

6,120 

5,360

4,480 

4,050 

3,900 

b3,600 

b3,200 

b3,000

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber ...............

lendar year 1949 

ary

ember .....................

ter year 1949-50 ..........

Feb.

b3,200 

b3 , 500 

b3,700 

b3,800 

3,950

4,200 

4,380 

4,770 

4,630 

4,340

4,170 

4,000 

4,070 

3,970 

4,080

4,200 

4,470 

4,540 

4,520 

4,430

4,380 

4,340

4,310 

4,410 

5,140

6,400 

7,400 

7,550

Secondfoot-days

133,600 

139,010 

131,300

4,103,610

117,260 

126,850 

165,460 

293,240 

771,020 

1,514,800 

676,150 

211,620 

155,540

4,435,850

Mar.

6,810 

6,140 

5,710 

*5,610 

5,670

6,000 

6,380 

6,100 

5,650 

5,380

5,270 

4,810 

4,480 

4,340 

4,560

4,590 

4,720 

5,550 

5,900 

5,940

5,670 

5,500 

5,440 

5,330 

5,210

5,120 

5,010 

4,880 

4,700 

4,520 

4,470

Maximum

4,630 

8,080

6,640

73,900

6,38C 

7,55C 

6,810 

14,900 

45,400 

67,100 

49 , 000 

9,450 

5,860

67,100

Apr.

4,920 

6,380 

7,750

7,660 

6,960

6,680 

7,100 

7,640 

8,050 

8,100

7,860 

8,030 

8,970 

10,700 

10,600

9,930 

10,000

10,900 

11,500 

11,600

12,100 

13,800 

14,900 

14,100 

12,700

11,700 

11,200 

11,000 

10,500 

9,910

May

9,720

10,100 

10, 200 

9,810 

9,380

9,110 

8,760 

8,580 

8,580 

8,760

9,220 

10,700 

14,400 

19,800 

26,700

31,900 

34,400 

34,600 

32,300

28,100

25,700 

28,500 

37,000 

43,200 

42,000

39 , 800 

41,200 

44, 000 

45,400 

44,800 

44,300

Minimum

3,920 

3,590 

3,070

3,000

2,660 

3,200 

4,340 

4,920 

8,580 

41,100 

9,060 

4,880 

4,320

2,660

June

45,300 

46,800

46,600 

46,800 

48,600

53,800 

56,200 

53,800 

48,000

42,900

41,300 

43,600 

46,100 

45,500 

46,800

51,400 

57,100 

58,100 

58 , 000 

59,700

64,100 

67,100 

62,100 

56,300

50,000

43,500 

41,100 

42,300 

44, 700 

47,200

Mean

4,310 

4,634 

4,235

11,240

3,783 

4,530 

5,337 

9,775 

24,870 

50,490 

21,810 

6,826 

5,185

12,150

July

49,000 

48,500 

45,600 

42 , 300 

39,000

36,200 

33,400 

31,100 

28,400 

26,400

24, 400 

22,800 

20,500 

18,900 

17,500

16,500 

15,600 

14, 800 

14,100 

13,600

12,900 

12,400 

11,800 

11,400 

10,900

10,500 

10,100 

9,720 

9,480 

9,290 

9,060

Per 

square 

mile

0.318 

.342 

.313

.830

.279 

.334 

.394 

.721 

1.84 

3.73 

1.61 

.504 

.383

.897

Aug.

8, 

8, 

8, 

7, 

8,

9,

9,

8, 

8, 

7,

7, 

7, 

7, 

7, 

6,

6, 

6, 

6, 

5, 

5,

5, 

5, 

5, 

5, 

5,

5, 

5, 

5, 

5, 

4, 

4,

790 

460 

140 

920 

350

410 

450

880 

300 

940

830 

550 

400 

190 

960

660 

440 

200 

980 

780

630 

500 

400 

360 

380

380 

290 

160 

060 

950 

880

Sept.

4,770 

4,68O 

4,590 

4,520

4,410

4,380 

4,340 

4,320 

4,450 

4,990

5,840 

5,860 

5,590 

5,500 

5,520

5,500 

5,570 

5,610 

5,590 

5,690

5,630 

5,420 

5,210 

5,080 

5,010

5,190 

5,540 

5,710 

5,590 

5,440

Runoff

Inches

0.37 

.38 

.36

11.25

.32 

.35 

.45 

.80 

2.12 

4.16 

1.86 

.58 

.43

12.18

Peak discharge (base, 29,700 sec. -ft. ). --May 17 (11 p.m.) 35,200 sec. -ft.; June 7 (6 p

Ac re- feet

265,000 

275,700 

260,400

8,140,000

232,600 

251,600 

328,200 

581,600 

1,529,000 

3,005,000 

1,341,000 

419,700 

308,500.

8,798,000

m.) 56,800

:.-ft.; June 22 (7 a.m.) 68,200 sec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice.
SALMON RIVER BASIN 211 

Alturas Lake Creek near Obsidian, Idaho

Location.--Water-stage recorder, lat. 43°56', long. 114°50' , in SWf sec. 9, T. 7 N., R. 

mrr, 1 mile downstream from outlet of Perkins Lake, ij miles downstream from outlet 

of Alturas Lake, and 4 miles south of Obsidian.

Drainage area. 35.7 square miles.

Records available.--November 1940 to September 1950.

Extremes.--Maximum discharge during year, 523 second-feet June 23 (gage height, 5.08

 reet); minimum recorded, 11 second-feet Oct. 19-27; minimum gage height recorded, 1.93

feet O^t. 26, 27.

1940-50: Maximum discharge, 612 second-feet May 31, 1943; maximum gage height,

5.41 feet June 9, 1948; minimum discharge recorded, 9 4 second-feet Sept. 26, 1949.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

wnicn are poor. No diversion or regulation above station.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

14 

14

13

13

16

16

13

14

13

14

14

14

13

13

13

12

12

12

11

11

11

11

11

11

11

11

11

12

12

12

12

Nov.

12

12

12

12

12

12

14

18

18

17

17

17

17

17

17

17

17

17

17

*17

17

19

22

23

22

37

47

45

44

-

Dec..

42 

40

37

34

33

31

30

28

28

> 24

Jan.

21

(*)

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

March .........................

April ....... .................

nay ffnv ...........................

June ..........................

July ..........................

August ........................

September .....................

Hater year 1949-50 ..........

Feb.

23

-

_

-

Secondfoot-days

390

597

831

25,770

651

638

736

1,030

4,568

10,595

7,356

1,540

785

29,717

Mar.

1

23

*25

27

28

29

29

Maximum

16

47

42

484

_

29

51

309

515

501

76

35

515

Apr.

29 

29

29

29

30

30

31

31

30

30

30

30

31

29

28

26

24

23

25

26

30

35

42

49

50

50

51

51

51

51

-

May

52 

53

52

51

50

50

50

49

48

48

48

50

56

69

91

118

150

177

185

182

185

202

236

276

285

278

278

292

297

301

309

Minimum

11

12

_

_

23

48

260

74

28

21

11

June

314 

326

321

314

324

346

374

364

316

278

260

269

280

£85

301

321

356

379

397

421

464

512

515

462

384

321

292

314

364

421

-

Mean

12.6

19 9

2e!e

70.6

21.0

22.8

23.7

34.3

147

353

237

49.7

26.2

81.4

July

470 

501

492

470

437

413

400

377

348

331

314

278

244

218

201

187

171

156

146

136

127

119

111

104

98

94

91

87

83

78

74

Per 

square 

mile

0.353

.557

.751

1.98

.588

.639

.664

.961

4.12

9.89

6.64

1.39

.734

2.28

Aug.

,

70 

69

66

64

73

76

73

69

65

61

60

59

56

53

50

49

47

45

43

40

39

37

35

33

31

31

31

30

29

28

28

Sept.

27 

27

26

26

25

24

24

24

35

35

33

31

30

30

28

26

25

25

24

24

23

23

21

21

23

25

25

24

24

27

-

Runoff

Inches

0.41

.62

.87

26.86

.68

.66

.77

1.07

4.76

11.04

7.66

1.60

.82

30.96

Acre-feet

774

1,180

1,650

51,100

1,290

1,270

1,460

2,040

9,060

21,010

14,590

3,050

1,560

58,930

Peak discharge (base, 250 sec.-ft.).--June 7 (3 p.m.) 379 sec.-ft.; June 23 (8 to 9 a.mT) 523

see.-ft.; July ~2 (II a.m. ten. p.m.) 509

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice about Dec. 10 to about Mar. 15, Mar. 

3-57~2~4. No gage-height record Nov. 15-20, Dec. 10 to Jan. 20, Feb. 1 to Mar. 26; dis 

puted on basis of range in stage, weather records, and records for nearby streams.

28-30, Apr. 

charge com-
SALMON RIVER BASIN

Location.--Water-stage recorder, lat. 44°13', Ion g. 114°56', In sec. 3, T. 10 N., R. 13

, a quarter of a mile upstream from mouth, three-eighths of a mile downst

e upstream from lower Stanley

Drainage area.--17n square miles.

Recordr available. --December 1910 t _> October 1913, May 1921 to September 1950.

Average discharge.--30 years (1311-13, 1922-50), 187 ^econd-feet.

Extremes --K.ximuni discharge during year, 1,070 second-feet June 7 (gage height, 3,20 

 feet); minimum, 63 record-feet Mar 29; minimum gage height, U.84 foot Nov. 15.

1910-13, 1921-50: Maximum discharge observed' 1,850 second-feet May 29, 1921 (gage

height, 4.4 feet), frcm rating curve extended above 1,300 second-feet; minimum, 40

second-feet (estimated) Nov. 17-30, 1929, Dec. 6-13, 1932.

Remarks.--Records gocj except those during periods of ice effect or no gage-height record, 

i«men are fair. Diversions ab»ve station for irrigation.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

93 

92 

90 

92 

123

116 

110 

108 

101 

109

104 

106 

101 

97 

95

95 

92 

92 

92 

92

92 

9O

90 

89 

92

90 

90 

93 

114 

99 

33

Nov.

93 

90 

89 

89 

87

87 

87

93 

97 

89

95 

97 

87 

90

87

90 

64

81 

81 

*85

79

82 

93 

146 

168

134

351 

324 

176 

159

Dec.

125 

125 

90 

95 

lul

101 

92 

90 

89 

b80

b76 

b76 

b84 

79 

b79

62 

82 

64 

85

a86 

90 

90 

93 

90

b94 

b94 

90 

89 

93

Jan.

92 

90 

b84 

b78 

b72

a86

a90 

a92

92

93 

95 

93 

b85 

b80

b80 

b82 

b82 

84 

*95

127

121 

110 

blOO

b92 

b92 

b92 

b92 

b90 

b90

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949

h .....................

1 . . ...

ember .................

ter year 1949-50 ..........

Feb.

b90 

a90 

b92 

bllO 

114

108 

103 

a!03 

99 

b95

97 

95 

95

95

95 

92 

b92 

b93 

90

b87 

89 

90 

92

108

10 e

108 

103

Secondfoot-days

3,037 

3,430 

2,739

71,305

2,860 

2,726

5,014 

16,660

24,2.32

5,031 

4,304

88,289

Mar.

101 

99 

101 

97 

97

97 

89 

93 

92 

92

87 

81 

87 

89 

87

84 

95 

93 

93 

92

90 

33 

69

93 

93

89 

90 

87 

81 

8E 

93

Maximum

123 

351

912

129 

114 

101 

303 

928 

1 , 030 

933 

256 

228

1,030

Apr.

114 

123 

114 

104 

106

108 

108 

108 

103 

101

104 

112 

132 

146 

139

159 

191 

191 

191 

221

276 

305 

256 

214 

208

235 

217 

201 

201

May

221 

217 

214 

224 

214

204 

208 

231 

235 

280

354 

431

521 

642 

726

703 

721 

664 

565 

546

590 

697 

«07 

821 

769

794

828 

828

821

Minimum

89 

79 

76

67

72 

87 

81 

101 

204 

642 

217 

118 

112

72

June

842 

856 

794 

794 

849

926 

1,030 

905 

750 

692

686 

715 

715 

709 

744

781 

842 

842 

856 

884

912 

961 

961 

870 

744

658 

642 

680 

757 

835

Mean

98.0 

116 

90.3

195

92.3 

97.4 

91.3 

167 

537 

808 

494 

162 

143

242

July

898 

933 

898 

842 

800

781 

750 

709 

647 

630

605 

541 

483 

454 

436

42Z

399 

376 

359 

345

328 

307 

299 

295 

280

272 

264 

256 

246 

235 

217

Per 

square 

mile

0.557 

.659 

.513

1. 11

.524 

.553 

.519 

.949 

3.05 

4.59 

2.81 

.920 

.812

1.38

Aug.

208 

201 

198 

208 

256

253 

217 

194 

191 

179

171 

174 

165 

157 

154

146 

144 

139 

139 

136

132 

129 

129 

13Z 

132

129 

129 

127 

123 

121

lie

Sept.

118

116 

116 

118 

114

11Z 

114 

144 

228 

194

159 

149 

144 

144 

134

141

152 

171 

154 

141

134 

136 

136 

127

123

174 

185 

146 

136 

144

Runoff

Inches

0.64 

.74

.59

15.07

.60 

.58 

.60 

1.06 

3.52 

5.1Z 

3.23 

1.06 

.91

18.65

Acre feet

6,020 

6,9ZO 

5,550

141,400

5,670 

5,410 

5,610 

9,950 

33,040 

48,060 

30,360 

9,980 

8,540

175,100

600 sec.-ft.). May 15 (8 p.m.) I,o20 sec.-ft.; June 

sec.-ft.; Jane 22 (12 .... _ ' r ...~, T~9~82 --- sec.-ft.; ---. --. July 2 (11 a.m.) 947 sec.-it.

* Winter discharge measurement made on this day.

a No gage-height record; discharge interpolated o 

ords for nearby streams.

b Stage-discharge relation affected by ice.

(1 tc
SALMON RIVER BASIN 213

Challis Creek near Challls, Idaho

Location. --Water-stage recorder, lat. 44°34', long. 114 0 19', in sec. 2, T. 14 N. , R.

ib K. , 0.1 mile downstream from Eddy Creek, 6 miles northwest of Challis, and 6f miles 

upstream from mouth.

Drainage area. --85 square miles.

Records available. --October 1943 to September 1950.

Extremes . - -Maximum discharge during year, 256 second-feet June 7 (gage height, 5.85 feet); 

minimum, 5.7 second-feet Mar. 11, 29 (gage height, 3.46 feet), but may have been less 

during winter period.

1943-50: Maximum discharge, 418 second-feet June 4, 1948 (gage height, 2.30 feet, 

site then in use); minimum, that of Mar. 11, 29, 1950.

Remarks . --Records good except those for periods of ice effect or no gage-height record, 

wnicn are poor. Diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29

30 

31

Oct.

18 

16 

16 

16 

17

18 

17 

18 

17 

19

19 

18 

18 

17 

19

19 

19 

20 

19 

20

20 

20 

20 

20 

20

20 

20 

20 

21 

19 

19

Nov.

20 

20 

19 

20 

20

20 

20 

20

21

20 

21 

20 

20 

20

19 

17 

*15 

14 

15

13 

14 

21 

24

20 

22 

25 

20 

20

Dec.

19 

20 

16 

16 

17

17 

16 

15 

14 

12

11 

12 

12 

11 

12

13 

14 

14 

13 

12

12 

13 

13 

13 

12

14 

14 

14 

14 

14 

12

Jan.

11 

11 

10 

9

8

9 

9 

10 

10 

11

11 

10 

10 

9 

9

9 

9 

*10 

11

12

12 

12 

11 

11 

10

10 

9

9 

9 

9 

9

Feb.

 11

12 

13

13 

13 

13

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

12 

12 

12 

14 

16

14 

12 

11 

11 

11

10 

10 

12 

12

12 

16 

14 

12 

12

11 

11 

12 

11 

12

12 

11 

12 

12

15

Apr.

21 

17 

14 

13 

13

14 

16 

25 

21 

19

19 

18 

IS 

18 

16

18 

20 

20 

19

23

34 

41 

37 

31

29

30 

29 

27 

25 

29

Secondfoot-days

579 

584 

431

12,718

309 

317 

377 

674 

1,942 

5,780

1,549 

860

16,127

May

24

22 

22 

20 

20

19 

18 

18 

18 

17

20 

27 

35 

46 

59

68

82 

92 

85 

79

79 

90 

97 

102 

98

98 

106 

114 

117 

124 

126

Maximum

21 

25 

20

190

12

16 

41 

126 

241 

167 

64 

37

241

June

137 

144 

140 

147 

168

211 

224 

241 

229 

200

190 

194

188 

181 

184

188 

196 

204 

208 

220

228 

229 

224 

216 

204

188 

180 

174 

172 

171

July

167 

160 

124 

124 

124

120 

122 

117 

107 

101

98 

94 

87 

82 

80

77 

73 

71

68 

68

65 

65 

63 

59 

59

59 

59 

59 

59 

59 

55

Minimum

16 

13 

11

-

8

10 

13 

17 

137 

55 

37 

25

-

Aug.

52 

51 

51 

55 

64

62 

59 

59 

59 

58

57 

55 

55 

53 

51

51 

50 

48 

47 

47

47 

47

46 

46 

44

44 

42 

38 

37 

37 

37

Mean

18.7 

19.5 

13.9

34.8

10.0 

11.3 

12.2

62.6 

193 

87.9 

50.0 

28.7

44.2

Sept.

36 

30 

27 

27

26

25 

26 

30 

37 

31

29 

29 

29

29 

30

29 

29

29 

28 

28

27

26 

25 

25 

26

27 

27 

27 

29 

37

Runoff In 

acre-feet

1,150 

1,160 

855

25,220

613 

623 

743 

1,340 

3,850 

11,460 

5,400 

3,070 

1,710

31,980
214 SALMON RIVER BASIN

Pahslmerol River near May, Idaho

Location.--Staff gage, lat. 44°42', long. 114°03 I , in wj sec. 25, T. 16 N., R. 20 E., a 

quarter of a mile downstream from old highway bridge on Challis-Salmon River highway, 

a quarter of a mile upstream from mouth, and 10 miles northwest of May. Datum of 

gage is 4,636.95 feet above mean sea level, adjustment of 1912.

Records available. October 1929 to September 1950. 

Average discharge.--20 years (1930-50), 205 second-feet.

Extremes.--Maximum discharge observed during year, 344 second-feet Oct. 25, 26, Nov. 25; 

maximum gage-height observed, 2.67 feet Oct. 25, 26; minimum discharge observed, 98 

second-feet May 13 (gage height, 1.70 feet).

1929-50: Maximum discharge observed, 454 second-feet May 30, 1943; maximum gage 

height observed, 3.21 feet June 4, 1948; minimum discharge observed, 75 second-feet 

Apr. 28, 1934.

Remarka --Records good except those for periods of ice effect or no gage-height record, 

wnich are fair. Gage read once daily. Many diversions above station for irrigation.

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

247 

251 

254 

265 

265

269 

280 

276 

272 

276

276 

272 

276 

280 

276

284 

291 

306 

310 

318

318 

322 

329 

333 

344

344 

333 

318 

314 

314 

314

Nov.

314 

310 

310 

318

318

318 

322 

318 

314 

314

314 

314 

318 

325 

325

325 

3325 

322 

318 

314

314 

314 

333 

329 

344

337 

333 

325 

325 

322

Dec.

318 

318 

318 

318 

314

314 

310 

310 

303 

295

291 

284 

272 

265 

262

258 

258 

254 

258

258

258 

262 

262 

269 

258

251 

262 

254 

247 

247 

247

Jan.

247 

244 

240 

240 

240

237 

237 

233 

230 

237

240 

237 

237 

237 

237

233 

233 

*237 

240 

244

251 

254 

280 

272 

258

244 

244 

240 

230 

227 

217

Feb.

224 

b220 

b220 

227 

230

233 

247 

237 

240 

247

254 

254 

251 

258 

265

265 

269 

272 

280 

276

272 

269 

272 

276 

280

287 

284 

276

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber .....................................

lendar year 194E ........... ...........

ter year 1949 50 .......................

Mar.

272 

269 

269 

265 

265

280 

272 

254 

254 

254

254 

254 

258 

262 

262

*265 

262 

258 

258 

254

254 

262 

262 

269 

265

262 

262 

265 

262 

262 

258

Apr.

258 

258 

258 

258 

258

247 

233 

227 

230 

227

237 

244 

251 

251 

237

224 

227 

230 

230 

230

179 

168 

166 

160 

155

148 

146 

143 

139

143

Secondfoot-days

9,127 

9,632 

8,595

81 , 548

7,477 

7,185 

8,124 

6,362 

3,517 

4,900 

5,148 

5,174 

6,844

82,085

May

139 

135 

132 

122 

118

115 

111 

109 

109 

104

99 

99 

98 

99 

103

106 

106 

107 

109 

113

113 

115 

115 

117 

117

117 

117 

117 

118 

118 

120

Maximum

344 

344 

318

344

280 

287 

280 

258 

139 

210 

173 

182 

322

344

June

122 

120 

120 

130 

135

143 

168 

158 

148 

141

150 

150 

155 

160 

166

179 

188 

185 

210 

192

185 

182 

176 

179 

182

179 

179

176 

171 

171

July

168 

168 

168 

171 

171

171 

166 

163 

163

173

171 

171 

171 

173 

173

171 

168 

166 

166 

166

163 

163 

166 

166 

163

163 

160 

160 

158 

155 

153

Minimum

247 

310 

247

96

217 

220 

254 

139 

98 

120 

153 

150 

168

98

Aug.

150 

153 

168 

168 

171

168- 

171 

171 

171 

168

168 

166 

166 

166 

163

168 

171 

173 

176 

179

182 

173 

160 

153 

155

158 

163 

168 

168 

168 

171

Mean

294 

321 

277

223

241 

257 

262 

212 

113 

163 

166 

167 

228

225

Sept.

171 

171 

168 

168 

171

168 

168 

322 

303 

287

276 

244 

233 

227 

217

210 

244 

240 

233 

227

230 

233 

230 

233 

230

237 

240 

247 

254 

262

Runoff In 

acre-feet

18,100 

19,100 

17,050

161,700

14,830 

14,250 

16,110 

12,620 

6,980 

9,720 

10,210 

10,260 

13,570

162,800

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records, inflow between Salmon 

iver near Challis and Salmon River at Salmon, and records for nearby streams, 

b Stage-discharge relation affected by ice.
SALMON RIVER BASIN

Panther Creek near Shoup, Idaho

Location.--Staff gage, lat. 45°19', long. 114°23', in sec. 19, T. 23 N., R. 18 E., 25

reet downstream from bridge on private road, 1 mile upstream from mouth, and 7 miles

southwest of Shoup. Altitude of gage, 3,280 feet (from river-profile).

Drainage area.--529 square miles.

Records available.--October 1944 to September 1950.

Extremes.--Maximum discharge observed during year, 1,370 second-feet June 7; maximum 

gage-height observed, 3.46 feet Dee. 39 (ice Jam); minimum discharge observed, 

54 second-feet Jan. 26 (gage height, 0.08 foot), but may have been less during period 

of ice effect.

1944-50: Maximum discharge observed. 2,500 second-feet May 9, 1947; maximum gage 

height observed, 4.4 feet Jan. 6, 1947 (backwater from ice); minimum discharge observed, 35 second-feet Dec. 17, 1946 (gage height, -0.08 foot).

Remarks.--Records fair except those for periods of ice effect, which are poor. Gage 

reaa once daily. Small diversions above station for irrigation.

Revisions (water years).--W 1063: 1945.

Rating table, water year 1949-50, except periods of ice effect 

Tgage height, in feet, and discharge, in second-feet)

56

70

106

172

256

2.2 

2.6 

3.0

405

601

834

1,100

1,410

Discharge, in second-feet, water year October 1949 to September 1C50

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

106 

102 

96 

95 

98

98 

102 

106 

102 

106

102 

102 

98 

98 

98

95 

91 

91 

70 

95

98 

95 

95 

95 

98

91 

91 

91 

110 

98 

84

Nov.

95 

91 

91 

95 

78

70 

84 

91 

91 

95

95 

95 

91 

95 

80

87 

87 

67 

*80 

78

75 

75 

116 

130

126

110

118 

158 

110 

118

Dec.

110 

95 

67 

68 

110

98 

95 

87 

84 

87

1

75

Jan.

65

*65

80 

90 

85 

80 

70

54

Feb.

70

80

87

91 

102 

73

.. _ 4.. SecondMQnth foot-days

Octc 

Nove 

Decs

Cs

Jam 

Febi 

Marc 

Aprl 

May 

June 

Julj 

Augn 

Sept

Hi

lendar year 1949 

ary

.

h .........................

1 .........................

ember .....................

2,997 

2,872 

2,476

32,755

2,109 

2,043 

2,510 

4,611 

15,358 

51,733 

10,540 

4,444 

3,422

iter year 1949-50 .......... 85,115

Mar.

87 

87 

95 

84 

106

106 

80 

67 

87 

80

62 

56 

73 

102 

87

80 

*89 

98 

91 

80

80 

73 

73

ao

84

67 

70 

70 

56 

73 

87

Maximum

110 

158 

110

1,450

90 

102 

106 

294 

1,030 

1,370 

744 

226 

135

1,370

Apr.

118 

144 

91 

56 

73

73 

110

118 

106

114

118 

126 

158 

172 

144

130

188 

193 

167 

188

244 

294 

226 

182 

215

188 

193 

172

148 

162

May

172 

165 

155 

148 

148

153 

139 

135 

135 

144

153 

188 

297 

397

521

558 

646 

703 

547 

477

449 

635 

949 

976 

773

715 

910 

1,030

996 

982 

962

June

996 

1,060 

923 

962 

1,140

1,290 

1,370 

1,250 

1,030

976

996 

1,100 

1,030 

1,060 

1,060

,170 

,170 

,170 

,250 

,350

,170 

,310 

,100 

,060 

930

847 

773 

773 

773 

744

Minimum Mean

70 96.7 

67 95.7 

79.9

227

68.0 

73.0 

56 81.0 

56 154 

135 495 

744" 1,058 

172 340 

102 143 

87 114

233

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records 

streams, 

d Doubtful or nonrepresentative gage-height record; discharge computed 

and records for nearby streams. 

Note. --Stage-discharge relation affected by ice Nov. 19-22, Dec. 4, 5, 

toTeE. 23.

July

744 

686 

657 

547 

521

495 

472 

427 

405 

397

389 

372 

349 

326 

3290

3270 

256 

256 

250 

250

226 

d220 

d210 

d205 

d200

198 

198 

193 

182 

172 

177

Per

squa re 

mile

0.183 

.181

.151

.429

.129 

.138 

.153 

.291 

.936 

2.00 

.643 

.270 

.216

.440

Aug.

167 

167 

167 

172 

226

198 

177 

167 

160 

167

172 

162 

153 

148 

144

137 

130 

126 

126 

122

122 

118 

116 

116 

118

116 

116 

116 

110 

106 

102

Sept.

98 

95 

98 

87 

96

96 

96 

106 

122 

122

126 

122 

122 

126 

122

135 

135 

130

126 

122

lie

118 

114 

110 

106

106

118 

114 

118 

118

Runoff

Inches

0.21 

.20

.17

5.81

.15 

.14 

.18 

.32 

1.08 

2.23 

.74 

.31 

.24

5.97

Acre-feet

5,940 

5,700 

4,910

164,100

4,180 

4,052 

4,980 

9,150 

30,460 

62,940 

20,910 

8,810 

6,790

168,800

and records for nearby 

on basis of weather records 

Dec. ll to Jan. 24, Jan. 27
SALMON RIVER BASIN

Middle Fork Salmon River near Cape Horn, Idaho

Drainage area.--138 >quare mile?.

Records available. September 1928 to September 1950 (no winter records 1941-45).

Average discharge.--18 years (1928-41, 1945-50), 217 second-feet.

Extremes.--Maximum discharge during year, 1,790 second-feet June 21 (gage height, 5.72 

reet J; minimum recorded, 41 second-feet Dec. 3 (sage height, 2.21 feet), but may have 

been less during winter period.

1928-50: Maximum discharge, 2,340 second-feet June 9, 1933, about May 31, 1943, 

June 3, 1948; maximum cage height, 6.26 feet June 9, 1933, June 3, 1948; minimum discharge recorded, 31 second-feet Apr. 14, 1945 (gage height, 2.12 feet), but may have 

been lesb during some winters.

Remarks --Records good except those for periods of ice effect ur 

which are poor. No diversion above station.

gage-height record,

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

89 

85 

83 

82 

111

99

98 

94

92 

96

96 

98 

94 

90 

90

90

87 

87 

85 

97

89 

83 

85 

83 

85

83 

85 

96 

99 

87 

83

Nov.

83 

82 

82 

80 

80

78 

78 

83 

87 

83

82 

83 

80 

82 

80

82 

76 

75 

75 

76

75 

74 

84 

113 

113

105 

220 

162 

119 

101

Dec.

98 

92 

80

80 

75

Jan.

70

Feb.

70

75

Mnn+h SecondMonth foot-days

Oeto 

Nove 

Dace

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber .......................

lendar year 1549 

ary

h ...... ..................

1 .........................

st ................. ......

ember .....................

2,791 

E,77E 

2,430

31,706

2,170 

2,025 

2,310 

3,274 

20,423 

11,530 

17,374 

5,713 

4,181

ter year 1949-50 .......... 107,596

Peak discharge (base, 930 sec . -f t . ) . May

ft.; June 21 (12 p.m.) 1,790 sec. -ft.; June 

* Winter discharge measurement made on thl

Mar.

75

*73 

70 

70 

76 

73 

73

Maximum

111 

220

98

1,540

174 

1,470 

1.710

1,390 

270 

190

1,710

Apr.

83 

85 

73 

70 

73

76 

73 

73 

70 

70

71 

76 

87 

90 

87

98 

111 

115 

117 

134

162 

174 

162 

145 

152

152 

155 

150 

145 

145

May

152 

145 

143 

143 

138

136 

132 

136 

138 

152

187 

248 

337 

456 

565

669 

779 

757 

652 

636

752 

1 , 050 

1,270 

1,270 

1,210

1,250 

1,550 

1,470 

1,370 

1,380 

1,350

June

1,410 

1,430 

1,370 

1,440 

1,580

1,630 

1,640 

1,360 

1,180 

1,140

1,200 

1,270 

1,220 

1,230 

1,310

1,390 

1,470 

1,470 

1,490 

1,560

1,670 

1,710 

1,560 

1,400 

1,210

1,110 

1,130 

1,200 

1,310 

1,380

Minimum Mean

82 90.0 

74 92.5 

78.4

224

70.0 

72.3 

74.5 

70 109 

132 659 

1,110 1,384 

235 580 

136 184 

123 139

295

July

1,390 

1,330 

1,230 

1,120 

1,030

962 

8'32 

814 

746 

713

642

570

522 

491 

465

435 

414 

394 

375 

355

337 

322 

312 

294 

284

277 

267 

257 

254

245

235

Per 

square 

mile

0.652 

.670 

.568

1.62

.507 

.524 

.540 

.790 

4.78 

10.03 

4.20 

1.33 

1.01

2.14

Aug.

226 

223 

2Z3 

232 

270

254 

223 

212 

212 

206

198 

198 

190 

185 

179

174 

169 

167 

164 

162

159 

157 

155 

155 

155

150 

150 

145 

143 

141 

136

Sept.

134 

132 

130 

127

125

125 

125 

147 

190 

162

145 

138 

138 

145 

136

141 

ISO 

164 

150

138

132

130 

127 

125 

123

155 

147 

134 

132 

134

Runoff

Inches Ac re- feet

0.75 5,540 

.75 5,500 

.65 4,820

21.99 162,100

.58 4,300 

.55 4,020 

.62 4,580 

.88 6,490 

5.50 40,510 

11.19 82,370 

4.84 35,650 

1.54 11,330 

1.13 8,290

28.98 213,400

28 (7 p.m.) 1,780 sec. -ft.; June 5 (10 p.m.) 1,760 sec.- 

30 (12 p.m.) 1,430 sec. -ft. 

s day.

Note.--Stage-discharge relation affected by ice Nov. 18-24, Dec. 4 to about Mar. 15. No gageheight record Dec. 13 to Jan. 23, Jan. 26 to Mar. 25; discharge computed on basis of weather records 

and records for nearby streams.
SALMON RIVER BASIN 217

Bear Valley Creek near Cape Horn, Idaho

Location.--Water-stage recorder, lat. 44°26', long. 115°17', In sec. 29, T. 13 N., R. 10

 K., &50 feet downstream from Pir Creek, 3 miles upstream from mouth, and 7 miles northwest of Cape Horn.

Drainage area.--180 square miles.

Records available.--September 1921 to September 1928 (fragmentary), October 1928 to September j.9bu (no winter records 1941-45).

Average discharge.--18 years (1928-41, 1945-50), 264 second-feet.

Extremes.--Maximum discharge during year, 2,480 second-feet June 6 (gage height, 4.75

 feet); minimum recorded, 68 second-feet Nov. 17 (gage height, 1.13 feet), but may have 

been less during period of ice effect or no gage-height record.

1921-50: 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 secondfeet Nov. 11, 1931.

Remarks.--Records good except those for period of ice effect or no gage-height record, 

whicn are poor. No regulation or diversion above station.

Revisions.--W 573: Drainage area.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

108 

104 

102 

102 

135

3.51 

130 

121 

117 

119

121 

130 

126 

114 

112

114 

108 

108 

102 

108

108 

104 

104 

102 

106

104 

106 

110 

140 

117 

108

Nov.

106 

104 

102 

100 

100

98 

98 

108 

108 

102

114 

106 

100 

102 

102

108 

100 

106 

112 

114

114 

124 

117 

176 

205

164 

259 

330 

205 

167

Dec.

140 

140

117

100 

90

Jan.

90 

100

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

ber .......................

mber ......................

lendar year 1949 

&ry

1 .........................

ember .....................

ter year 1949-50 ..........

Feb.

100

Secondfoot-days

3,541 

3,951 

3,037

105,467

2,910 

2,800 

2,945 

5,306 

26,615 

49,460 

19,033 

6,015 

4,339

129,952

Mar.

95

Maximum

15] 

33C 

14C

2,38C

296 

1,820 

2,190 

1,450 

326 

194

2,190

Peak discharge (base, 1,200 sec. -ft. ). --June 6 (8

Apr.

140 

130 

125 

*114 

117

117 

121 

119 

119 

121

121 

124 

138 

143 

148

161 

182 

198 

211 

222

271 

296 

275 

252 

236

225 

236 

222 

211 

211

May

225 

218 

205 

205 

201

194 

185 

194 

198 

205

248 

330 

456 

609 

753

875 

998 

945 

812 

819

1,020 

1,350 

1,620 

1,660 

1,600

1,620 

1,750 

1,800 

1,820 

1,740 

1,760

Minimum

102

98 

0

0

114 

185 

1,310 

244 

135 

124

-

June

1,860 

1,980 

1,850 

1,890 

2,000

2,190 

2,090 

1,680 

1,440 

1,470

1,510 

1,610 

1,510 

1,430 

1,510

1,560 

1,610 

1,600 

1,690 

1,680

1,770 

1,920 

1,730 

1,610 

1,470

1,320 

1,310 

1,340 

1,390 

1,440

Mean

114 

132 

98.0

289

93.9 

100 

95 

177 

859 

1,649 

614 

194 

145

356

July

1,450 

1,420 

1,330 

1,230 

1,120

1,040 

960 

861 

786 

746

714 

621 

561 

528 

489

450 

425 

400 

381 

362

348 

330 

317 

304 

292

279 

275 

263 

255 

252 

244

Per 

square 

mile

0.633 

.733 

.544

1.61

.522 

.556 

.528 

.983 

4.77 

9.16 

3.41 

1.08 

.806

1.98

Aug.

236 

229 

233 

267 

300

326 

263 

236 

222 

211

205 

208 

201

191 

188

179 

176 

173 

167 

161

158 

158 

153 

156 

156

151 

148 

145 

143 

140 

135

Sept.

133 

130 

130 

128 

126

124 

126 

133 

182 

176

151 

143 

138 

140 

138

138 

145 

161 

158 

153

140 

135 

140 

135 

130

158 

194 

158 

145 

151

Runoff

Inches

0.73 

.82 

.63

21. .79

.60

.58 

.61 

1.10 

5.50 

10.22 

3.93 

1.24 

.90

26.86

Acre-feet

7,020 

7,840 

6,020

209,200

5,770 

5,550 

5,840 

10,520 

52,790 

98,100 

37,750 

11,930 

8,610

257,700

a.m.) 2,480 sec. -ft.; June 22 (12:30 p.m.) 2,030

sec.-rtrr

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 4 to about Mar. 15. No gage-height record 

Dec"- 2"8 to Jan. 22, Jan. 26 to Apr. 3; discharge computed on basis of weather records and records 

for nearby streams.

253646 O - 53 - 15
218 SALMON RIVER BASIN

Big Creek near Big Creek, Idaho

Location (revised). Water-stage recorder, lat. 45°07', long. 114°55', in NE-J sec. 36, 

T. 21 M., H. 12 E., three-quarters of a mile downstream from Cabin Creek, if miles 

southeast of Wallace Ranch, and 19 mile.] east of Big Creek post office. Altitude of 

gage, 3,950 feet (from river profile).

Drainage area. 470 square miles.

Records available. September 1944 to September 1950.

Extremes.--Maximum discharge during year, 3,880 second-feet June 22 (gage height, 6.04 

reet); minimum, 84 second-feet Mar. 12 (gage height, 1.47 feet), but may have been 

less during period of ice effect.

1944-50: Maximum discharge, 5,800 second-feet June 3, 1948 (gage height, 7.12 

feet, from floodmark, former site and datum), from rating curve extended above 3,000 

second-feet by logarithmic plotting; minimum observed, 66 second-feet Dec. 17, 1946 

(discharge measurement), but may have been less during period of ice effect.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

wnicn are fair. No regulation. Small diversions above station for irrigation.

Rating table, water year 1949-50, except periods of ice effe 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Feb. 24 to May 12)

1.6 97 2.4 368 4.5 2,240 

1.7 113 2.7 560 5.0 2,770 

1.8 132 3.0 790 5.7 3,520 

2.0 185 3.5 1,230 

2.2 264 4.0 1,720

Discharge, in second-feet, water year October 1949 to September

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

182 

173 

170

168 

185

196 

185 

179 

173 

176

170 

176 

173 

168 

168

168 

162 

165 

156 

162

159 

156 

156 

156 

156

156 

156 

159 

182 

168 

162

Nov.

162 

156 

154 

154 

151

149 

151 

154 

156 

162

154 

156 

156 

156 

151

154 

146 

137 

125 

120

120 

125 

170 

200 

247

207 

255 

477 

318 

274

Dec.

234 

225 

165 

154 

199

199 

185 

*170 

165 

146

134 

134 

156 

132 

130

160 

170 

180 

168 

137

150 

156 

160 

156 

134

149 

160 

154 

150 

150 

150

Jan.

140 

130 

120 

110 

110

110 

120 

130 

130 

130

130 

130 

130 

120 

120

120 

130 

140 

150 

150

150 

150 

140 

130 

120

120 

120 

120 

120 

120 

120

Month foot

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 1949 

ary

Feb.

120 

120 

120 

130 

130

130 

120 

120 

120 

120

120 

120 

120 

120 

110

110 

*110 

105 

110 

110

105 

110 

120 

124 

142

151 

150 

150

ond-

-days

5,221 

5,397 

5,012

167,576

h .........................

1 .........................

st ........................

ember .....................

3,960 

3,417 

4,497 

10,823 

35,564 

73,230 

33,721 

9,910 

6,680

ter year 1949-50 .......... 197,432

Mar.

145 

145 

147 

151 

159

162 

149 

149 

149 

146

149 

137 

155 

150 

144

137 

144 

149 

146 

139

139 

142 

139 

142 

144

139 

139 

139 

134 

142 

146

Maximum

196 

477 

234

3,410

150 

151 

162 

734 

2,130 

3,530 

2,600 

427 

247

3,530

Apr.

179 

230 

199 

182 

185

203 

217 

225 

221 

217

225 

264 

335 

362 

324

318 

409 

440 

440

484

616 

734 

646 

532 

484

458 

465 

446 

403 

380

May

398 

409 

386 

374 

362

346 

330 

330 

335 

335

368 

567 

924 

1,300 

1,610

1,610 

1,690 

1,590 

1,280 

1,120

1,150 

1,600 

2,130 

1,960 

1,680

1,680 

1,910 

2,010 

1,960 

1,890 

1,930

Minimum

156 

120 

130

-

110 

105 

134 

179 

330 

1,760 

440 

234 

199

105

June

1, 

2,

1, 

2, 

2,

2, 

2, 

2,

1, 

1,

1, 

2, 

2, 

2, 

2,

2, 

2, 

3, 

3, 

3,

3, 

3,

2,

z',

1, 

2, 

2,

Mean

168 

180 

162

459

128 

122 

145 

361 

1,147 

2,441 

1,088 

320 

223

541

Peak discharge (base, 2,000 sec. -ft. ). --May 23 (5 a.m.) 2,220 sec. -ft.

990 

050 

930 

070 

520

920 

690 

200 

880 

760

890 

110 

010 

020 

350

790 

990 

000 

050 

070

530 

510 

950 

580 

170

920 

010 

260 

460 

550

:t 

1950

July

2,

2, 

2, 

2,

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1,

Per 

square 

mile

0.357 

.383 

.345

.977

.272 

.260 

.309 

.768 

2.44 

5.19 

2.31 

.681 

.474

1.15

June 6

600 

460 

200 

040 

900

780 

660 

530 

410 

350

220 

100 

000 

942 

879

846 

806 

750 

718 

686

638 

616 

588 

567 

546

525 

504 

484 

471 

465 

440

Aug.

421 

403 

392 

386 

427

421 

392 

380 

374 

386

357 

352 

340 

330

313

303 

298 

288 

279 

274

269 

260 

260 

264 

269

260 

251 

247 

242 

238 

234

Sept.

230 

225 

221 

217 

214

214 

214 

225 

247 

230

221 

214 

217 

225 

225

238 

242 

234 

242 

230

217

214 

207 

203 

199

217 

242 

225 

217 

E14

Runoff

Inches Acre-feet

0.41 10,360 

.43 10,700 

.40 9,940

13.27 332,400

.31 7,850 

.27 6,780 

.36 8,920 

.86 21,470 

2.81 70,540 

5.79 145,200 

2.67 66,880 

.78 19,660 

.53 13,250

15.62 391,600

(3 a.m.) 3,060

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Nov. 19-24, Dec. 12, 16-18, 21, 23, 27, Dec. 29 to 

Feb. 23, Feb. 27 to Mar. 3, Mar. 13, 14. No gage-height record Jan. 28 to Feb. 16; discharge computed on basis of weather records and records for Johnson Creek at Yellow Pine and other nearby 

streams.
SALMON RIVER BASIN 219

Location.--(\later-5tage recorder, lat. 44°39', long. 115°42', in NW£ sec. 11, T. 15 N., 

 K. b E.. 800 feet downstream from Curtis Creek, 1 mile upstream from Warm Lake Creek,

l| miles southwest of Knox, and 21 miles northeast of Cascade. Datum nf gage i*

5,090.31 feet above mean sea level, unadjusted.

Drainage area.--92 square miles,.

Records available.--September 1928 to September 1950.

Extreme .-.--Maximum discharge during year, 1,160 second-feet June 21 (gage height, 5.71 

 1'eet) ; minimum, 22 second-feet Oct. 19 (gage height. 2.33 feet), but may have been 

less during winter period.

1928-50: 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, 1921, Nov. 16, 1944.

Remarks.--Records good except those for periods of ice effect

Discharge, in second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

42

38

37

36

70

52

48

46

45

46

45

48

46

44

44

45

41

42

39

41

41

40

40

40

41

40

41

45

55

45

41

Nov.

41

40

40

40

39

39

39

42

45

45

44

42

42

42

40

41

39

37

36

34

32

36

52

76

65

59

116

112

67

61

-

Dec

55

55

48

46

58

4B

47

46

45

(*)

> 43

Jan.

, 43

1> 44

'

Feb

44

*42

40

40

42

41

40

40

41

39

41

41

49

73

72

74

74

-

_

-

Month ,.Se ? 02d~ foot-days

October . . ........ .... 1,364

November ..... ....... 1,483

December. . . ....... .. . . 1.394

Calendar year 194S . . ... 57,059

January.... ... ... .. .... . 1,386

February. .... ....... . 1,317

March ...... . . . . 1,879

April ........ .. . 4,510

May ........ ......... . . 13,783

June ..... . ... . . 23, 864

July ... .......... . . 8,741

August ....... . . . . . . 2,255

September ......... ..... 1, 573

Water year 1949-50 ..... . . 63,549

Mar.

62

64

67

65

70

76

74

67

65

64

61

56

63

62

58

56

62

62

61

56

58

58

56

56

56

54

54

52

50

54

58

Maximum

7C

lit

5E

1,250

74

If

28£

75:

1,041. 76 r

12L

7E

1.04C

Apr.

76

97

84

81

79

84

88

88

88

92

95

110

132

144

134

144

177

190

190

210

257

289

243

210

200

200

202

181

170

175

-

May

195

193

181

170

164

153

149

161

170

177

220

289

391

489

551

576

593

534

454

413

466

t-15

738

713

680

689

733

752

728

715

725

June

767

812

802

837

912

962

942

767

694

665

689

704

669

699

742

797

832

642

887

917

1,040

1,010

887

802

eac

647

661

r 84

733

762

-

July

Per 

Minimum Mean square

mile

36 44.0 L.476

32 49.4 537

45.0 . 46i

156 1.70

44.7 .48 '

47.0 .511

5u CO. 6 .659

76 150 1.65

149 445 4.84

647 735 8.64

103 282 3.07

46 72.7 .79C

45 52.4 .570

174 1.S9

Peak discharge (base, 600 sec. -ft . ) .--May 16 (11 p.m.) C52 sec. -ft. j June 6 (1

762

718

661

598

538

489

443

595

556

329

299

263

238

224

210

197

134

175

164

157

153

142

134

130

124

us

114

110

loe

105

103

Aug

97

92

90

97

120

120

97

68

84

81

797'j

76

72

es

57

C4

64

62

El

53

58

56

56

56

55

54

54

31

49

43

Sept

47

47

47

46

46

45

46

49

64

56

51

48

48

51

48

52

55

59

58

25

51

45

4b

46

4b

79

72.

55

54

54

-

Runoff

Inches Acre-feet

L.55 2.710

. :n 2,540

. 5t_ 2,7'"0

23.06 113,200

.oh 2,75C

.55 2,610

.76 3,730

1.32 8, £50

5.57 27,340

J.65 47,330

3 . 53 17 34L

.31 4', 470

.64 3,120

25.68 126,000

a.m. ) 1,040 sec.-

ft.; June 21 (12 p.m.) 1,160 sec.-ft.; June 50 (12 p.m.) 647 sec.-ft.

* Winter discharge measurement made on this day.

Note. Stage-discharge relation affected by lee Uov. 17-22, Dec. 4, Dec. 6 to Fee. 12, Feb. 18, 

19, 21, Feb. 25 to Mar. ?, Mar. 12, 13, 23, 2t, 29, 30 (ro (^age-height record Jar.. 28 to Feb. 12;

253646 O - 53 - 16
220 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., 

H. s hi., 700 feet upstream from mouth and a quarter of a mile southwest of Yellow 

Pine pust office. Datum of gage is 4,657.70 feet above mean sea level, datum of 1929 

(preliminary).

Drainage area. 213 square miles.

Records available.--August 1928 to September 1950.

Average discharge.--22 years, 319 second-feet.

Extremes.--Maximum discharge during year, 3,200 second-feet June 21 (gage height, 5.94 

TeetT; minimum, 49 second-feet Nov. 21 (gage height, 1.03 feet).

1928-50: 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 except those for periods of no gage-height record, which are fair, 

snmi diversion from Johnson Creek Basin to Deadwood River Basin (see "Remarks'1 for 

Deadwood Reservoir near Lowman).

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct.

91 

84 

77 

74 

100

110 

100 

94 

89

96

94 

98 

100

96

58 

93 

54 

87 

91

91 

87 

87 

87 

39

87 

85 

89 

104 

94 

87

Nov.

87 

84

82 

82 

Td

78 

80 

82 

87 

84

85 

85 

78 

84 

77

80 

77 

74 

72

67

64 

67 

91 

106 

157

141

196 

375 

221 

182

Dec.

134

146 

96 

82 

123

112 

108 

108 

100 

75

60

60 

75 

69 

67

75 

77

86 

74

79 

88 

91 

88 

74

SO 

86 

86

34 

64 

82

Jan.

84 

79 

373 

a70 

a64

a7O 

79 

82 

79 

79

77 

75 

75 

a70 

a68

a68 

a74 

75 

79 

39

124 

131 

113 

99 

93

93 

95 

93 

91 

91 

91

Month f^c

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

mber

lendar year 1949

st .

embe r .

Feb.

91 

91 

91 

91 

97

97 

95 

93 

a9o 

a90

a90 

390 

390 

34 

82

84 

82 

79 

80 

BC

79 

SO 

79 

86 

105

103 

107 

101

ond-

-days

2,849 

3,203 

2,735

35,838

2,633 

2,507 

2,984 

6,412

31,636 

63,920 

24,070 

5,158 

3,249

ter year 1949-50 .......... 151, 35t

Peak discharge (base, 1,SOO sec. -ft.). J

3,200 sec. -ft.; June 30 (10 p.m.) 2,370 sec 

a no gage -height record; discharge coraput 

streams.

Mar.

97 

99 

97 

99

107

109 

101 

101 

101 

101

97 

89 

103 

95 

93

93 

105 

99 

97 

93

95 

97 

93 

95 

93

89 

91 

89 

86 

89 

91

Maximum

110 

375 

146

3,950

131 

107 

109 

381 

2,040 

2,790 

2,120 

275 

158

2,790

Apr.

107 

127 

116 

111 

116

122 

124 

124 

124 

124

129 

143 

165

184 

176

187 

219 

235 

241 

268

334 

381 

357 

330 

322

319 

330 

311 

297

289

May

307 

304 

253

2as

279

265 

261 

268 

272 

279

319 

440

619 

828 

1,010

,140 

,300 

,210 

,010 

936

,120 

,560 

,930 

,870 

,700

,830 

,000 

,040 

,970 

,970 

,O20

June

2,200 

2,^10 

2,210 

2,350 

2,570

2,640 

2,390 

1,850 

1,670 

1,720

1,900 

2,000 

1,820 

1,860 

2,OOO

2,150 

2,180 

2,210 

2,350 

2,500

2,79O 

2,730 

2,310 

2,O5O 

1,750

1,660 

1,750 

1,890 

2,030 

2,090

Minimum Mean

74 91.9 

64 1O7 

60 88.2

60 372

64 84.9 

79 89.5 

86 96.3 

107 214 

261 1,021 

1,660 2,131 

255 776 

103 166 

95 108

60 415

July

2,120

1,^50 

1,770 

1,600 

1,480

1,370 

1,240 

1,110 

1,000 

942

852 

759 

687 

64O 

594

555 

516 

480 

466 

431

4O6 

385 

365 

345 

326

307 

293 

279 

272 

265 

255

Per 

square 

mile

0.431 

.502 

.414

1.75

.399 

.420 

.452 

1.00 

4.79 

10.00 

3.64 

.779 

.507

1,95

Aug.

238 

222 

213 

219 

251

275 

232 

210 

198 

201

187 

178 

173 

168

163

155 

148 

143 

141 

138

131 

129 

124 

122 

122

120 

118 

116 

111 

109 

103

Sept

101 

99 

99 

97 

93

93 

93 

' 99 

124 

118

107 

101 

101 

103 

101

105 

120

122 

120 

116

105 

101 

99 

97 

95

131 

158 

124 

116 

111

Runoff

Inches

O.50 

.56 

.48

23.74

.46 

.44

.52 

1.12 

5.52 

11.16 

4.20 

.90 

.57

£6.43

Ac re- feet

5,650 

6,350 

5,420

269,400

5,220 

4,970 

5,920 

12,720 

62,750 

126,800 

47,740 

10,230 

6,440

300,200

jne 6 (12:30 a.m.) 2,97O sec. -ft.; June 21 (11 p.m.) 

-ft. 

=d on basis of weather records and records for nearby
SALMON RIVER BASIM

Secesh River near Burgdorf, Idaho

Location --Water-stage recorder, lat . 45°14', long. 115°49', In S'rf£ sec. 23, T. 22 N. , 

K. b E. , 760 feet upstream from Long Gulch Creek and 5f miles southeast of Burgdorf.

Drainage area.--104 square miles. 

Rec ords available . --October 1948 to September 1950; April 1943 to September 1948 at site 

1 mile upctream.

Extremes. --Max! mum discharge during year, 1,700 second-feet June 22 (gage height, 6.00 

reet) ; minimum recorded, 33 second-feet Nov. 10 (gage height, 1.81 feet), but may 

have been less during period of ice effect.

1943-50: Maximum discharge, 2,500 second-feet June 3, 1948 (gage height, 8.24 

feet, site and datum then in use), by slope-area method; minimum observed, 29 secondfeet (discharge measurement) Jan. 30, 1945, but may have been less during periods of 

ice effect.

Remarks . Record; good except those for period of ice effect, which are poor.

Rating table, water year 1949-5O, except periods of Ice effect 

(gage height, in feet, and discharge, in second-feet)

1.9 

2.2 

2.5 

2.9

143

229

3.3 

3.7 

4.1

4.5

333

456

4.9 

5.4 

6.0

1,020

1,320

1,700

Discharge, in second-feet, water year October 1949 to September 195O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

68

57

50

47

75

68

60

55

54

55

55

64

58

54

54

54

50

50

52

68

61

62

62

58

51

52

51

54

c8

57

52

Nov.

51

5O

50

49

48

48

49

51

48

47

47

).,

)-

-

Dec.

70

(»)

> 55

Jan.

45

Month

October ........ . ....

November . ... ........ ......

December ... ......... ...

Calendar year 1949 . ......

January ............ ... ......

February ....... ... .... ....

March . ...... . . . . . .......

April ........ .... . . . . ...

May ......... ... ........

June . .... ..............

July ...... . . . . ...... ....

August

September . . .......... .......

Water year 1949-50 . . .......

Feb.

45

(*)

-

-

-

Secondfoot-days

1,776

1,698

1,855

66,208

1,395

1,260

1,395

2,403

14,116

33,158

15,289

5,558

2,022

79,930

Mar.

45

Maximum

75

-

-

1.36C

_

137

944

1 54C

1^25C

224

99

1,540

Apr.

1 «

J ' '

46

47

47

48

50

52

60

70

75

74

80

100

1OO

100

110

126

137

122

113

108

106

111

101

99

98

-

May

108

113

104

99

96

94

89

94

101

115

143

215

302

386

493

575

5^3

480

411

414

532

729

856

795

748

828

905

932

905

922

944

Minimum

47

_

-

89

834

171

6 7

60

June

1,000

1,030

1,030

1,080

1,140

1,180

1,O40

894

356

854

894

972

978

1,010

1,100

1,180

1,250

1,250

1,290

1,370

1,540

1,480

1,280

1,130

990

922

978

1,060

1,140

1,200

-

Mean

57.3

56.6

59.8

181.

45.0

45.0

45.0

80. 3

455

1,105

493

115

67.4

219

July

1,250

1,170

1,090

1,030

932

872

806

714

650

608

544

477

433

408

383

353

333

313

305

292

270

256

241

224

213

202

193

188

188

180

171

Per 

square 

mile

0.551

.544

.575

1.74

. 433

.433

433

.772

4.38

10.6

4.74

1.11

.648

2.11

Aug.

161

153

147

151

224

213

163

145

139

141

128

122

117

111

106

101

98

94

91

87

86

83

81

84

87

81

78

76

73

70

67

Sept.

67

64

61

61

61

60

6O

64

72

67

61

60

62

72

66

70

70

67

78

72

66

62

60

60

60

99

87

73

70

70

-

Runoff

Inches Acre-feet

0.64 3,520

.61 3,370

.66 3,680

23.70 131,300

.50 2,770

.45 2 , 5OO

.50 2,770

.86 4,780

5.05 28,OOO

11.86 65,770

5.47 30,330

1.27 7,060

.72 4,010

28.59 158,600

Peak discharge (case, 9OQ sec.-ft.). May 22 (8:3O p.m.) 984 sec.-ft.; June 6 (1 a.m.) 1,270 sec.- 

ft.j June 22 (2 a.m.) 1,700 sec.-ft.; July 1 (2:30 a.m.) 1,340 sec.-ft.

* Winter discharge measurement maae on this day.

Note.--Stage-discharge relation affected by Ice Oct. 31 to Nov. 7, Nov. 11 to Apr. 20 (no gageheight record Jan. 31 to Feb. 15; discharge computed on basis of weather records and records for 

nearoy streans).
Mud rreek near Tamarack, Idaho

Location.--Water-stage recorder, lat. 45°00', lon

mile upstream frum Little Mud Creek, C4 miles nnrthea t uf Tamarack, and

upstream from mouth

available.--April 1927 to September 1940 (Incomplete), September 1945 t

Extreme;.--Maximum discharge during year, 173 second-feet Apr. 21; maximum gage 

aoove 4.0 feet during ice period; minimum -^charge, 0.9 -econd-foct Oct. 21 

height, 2.17 feet).

1937-38, 1345-50: Maximum di ;charge observed, abjut 30D -econd-feet pmbr 

May 1, 1938 (gage height, 3.34 feet, from floodmark, :ite arid datum then in ; 

mum, probably le-.i than half a second-foot iurin? late summer nf 1937.

height, 

(gage

Revisions (water year?).--W 1153: 1348.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.0 

l.b 

1.8 

A- 8 

3.1

2.3 

2.0 

1.9 

1.6 

2.0

2.0 

1.9 

1.8 

1.8

i.e

l.B

i.e

1.8 

1.8 

1.8

1.8 

1.8

1.8 i.e

1.9

1.8 

1.8 

1.9 

2 . 0 

l.G 

1.6

Nov.

1.6

1.6 i.e

1.6

i.e

1.8 

1.8 

2.0 

2.9

2.7 

2.7 

2.7 

2.3 

2.3

2.0 

1.9 

1.9 

 »1.9

2.5 

3.8

3.4

7.3

5.8 

4.7

3.6

Dec.

3.1 

2.9

Jan.

Z 

(*)

3

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May 

June 

July 

Augu 

Sept

Wa

her . .

mber . 

lendar j ear 1949 .....

uary . 

h

ember . . ....

ter year 1949-50 . . ......

Feb

}' 

]'

> 2.E

J »5.6

7

9.5 

9.c

Secondroot-days

58.5 

BO. 3 

64.0

5,454.2

74.0 

96.6 

302.9 

2,398 

2,357 

428.9 

123.8 

70.1 

53.4

6,107.5

Mar

9 

5.5 

8 

7.5

8.5

9.5 

9 

9 

5.E 

7.5

7.5 

7

F.5

6

£ 

9 

IS 

15 

14

14 

*14 

14

12 

12

11 

10 

9.7 

9.5 

9.U 

9.4

Maximum

5.1 

7.3 

3.1

146

9.5 

16 

155 

138 

28 

6.2 

3.8 

2.2

155

Apr

15

26

24

27 

32 

37 

44 

47

*56 

71 

108 

121 

101

110 

lid 

121 

129

144 

155 

132 

110

100

93 

£4 

75 

74

May

92 

32 

74

66

62 

61 

66 

72 

76

86 

Io3 

119 

132

136

125 

119 

100

6u 

6a

64 

£5 

69

62

43 

41

34

Minimum

1.6 

l.t

-

15 

30

e.5

C.7 

1.9

1.6

-

June

28

22 

20

18 

22 

17

15 

14 

14 

13 

14

12

14

i: 

11

lU

11

9.7

S.4

9.1

7.U 

7.0 

C.7

Mean

1.89

2 . '_3 

2.1

14.9

2 . 4 

3.45 

9.77 

79.9 

76.0 

14.3 

3.99 

2.26 

1.78

16.7

July

C.2 

5.7 

5.4 

5.4 

5.4

4.9 

4.& 

4.7 

4.9 

4.7

4.7 

4.4 

4.2 

4.0

3.8

5.8 

3.6 

3.4 

3.4 

5.4

5.1 

3.1

3.1 

3.1

t .7

3.1 

5.1 

2.S 

2.9

Per 

square 

mile

C.1EO 

.170 

.133

.945

'218 

.616 

5.06 

4.81 

.905 

.253 

.143 

.113

1.06

Aug

2.7 

2.5 

3.C

3.8 

2.7

2.7

2.0

i!g

1.9 

1.9 

1.9 

2.0 

2.0

1.9

1.9 

1.9

1.9

Sept

1.8

i.e

1.6 

1.6

1.6

1.6 

l.b 

l.ij l.t' 

l.i

l.C 

l.t i.e

1.6 

1.6

1.6 

l.B 

1.8 

2.U 

1.9

1.6 

1.8 

1.8 

1.5

1.6

1.9 

1.9 

1.9

Runoff

Inches Acre-feet

U.14 116 

.19 159 

.15 127

12.84 10,820

.17 147 

.23 192 

. 71 Cul 

5.64 4,760 

5.55 4,680 

1.01 851 

.29 246 

.17 139 

.13 106

14.38 12,120

Peak discharge (base, 100 sec.-ft . 1 . Apr. 13 (8 p.m.) 142 sec. -ft.; Arr. 21 (7 p.m.) 173 sec. -ft.;

May 15 (b a.m. to 1 p.m. ) T4Z~ sec.-ft.

* Winter discharge measurement made on this day.

Note. --Stage-discharge relation affected ly ice Nov. 16-22, about Dec. 3 to atout Mar. 15, ,'.ar. 

C6, 29, 30. No gage-height record Dec. 5 to Jan. 16, Jan. 25 to PeL. 23, Feb. 25 to Kar. 21; discharge computed on basis cf winter discharge measurements, weather records and records for Weiser 

River at Tama
GRANDE ROHDE RIVER BA55L 1

Grande Ronde River near Hilgard, Oreg.

Drainage area. 489 square miles.

ui uo ava JLJ.HU j.s. --uuiuue i- j.313 LU oepiemuer U3U in reports 01 ueoiogicai purvey, mari 

lyay to septemoer 1941 in reports of State engineer; October 1941 to September 1945 ii 

files of State engineer.

Extremes. Maximum discharge during year, 2,040 second-feet Apr. 1; minimum, 13 second-feet 

Oct. 20 (gage height, 1.00 foot).

1937-50: Maximum discharge, 3,300 second-feet May 28, 1948 (gatre height, 5.S6 feet); 

minimum, 6 second-feet Aug. 10, 12-29, Sept. 1-4, 1940.

Get. 1 to Apr. 12

i.e 64 :

1.7 11" 3

I.E 184

270

410

3.3 

4.3 1.4

1.5

1.6

1.7

1.8

1.9 

£.1

13 to Sept. 30 

6 78 2.4

106

138

176

Discharge, in second-feet, water year October 1949 to September 195O

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

28 

25 

£4 

24

29

38 

43 

41

38 

42

42

36 

34 

31

28 

26 

£4

31 

32

29 

29

30 

£9 

30 

37 

36 

30

Nov.

30

29 

28 

26 

28

25 

31 

32 

34

33

3d

31 

b28 

b23 

b24 

b£4

b24

*b28 

t54 

119 

92

£9 

92 

176 

98 

98

Dec.

92 

80 

4E

69

60 

54 

54 

40

43

b28 

b£8 

*b46 

b54 

b40

43 

42 

b4C 

b40 

b33

40 

45

48 

45 

b46

45 

46 

*b48 

b4b 

b43 

b40

Jan.

b40 

b40 

b35 

b35 

b35

b35 

b35 

a40 

b40

b40 

b40 

b40 

b35 

b35

b35 

b40 

b40 

b45 

b55

80 

180 

b200 

*b£00 

b!50

b!20 

blOO 

b80 

b75 

b70 

a65

Feb.

a65 

a60 

b65 

b70 

b75

b85

ago

a 100 

alOO 

blOO

b95 

b90 

b95 

101 

106

157 

315 

b3oO 

£97 

£70

*b£50 

230 

£66 

660 

»1,£00

1.280 

1,060 

693

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-5U .......................

Mar.

505 

475 

1,240 

1,360 

1 , 300

1,060 

754 

580 

465 

410

338

279 

270 

266

342

865 

981 

860 

698

595 

605 

475 

440 

400

360 

333 

306

£79 

302 

435

Apr.

1

1 

1

1 

1 

1

1

1

1

1,

Secondfoot-days

971 

1,436 

1,457

101,526

2,105 

8.275 

17,880 

30,100 

26,754 

£1,372 

4,662 

1,248 

711

116,971

Peak discharge (base, 1,500 nee . -ft . ) . --Mar . 3 (8:30 p

sec. -ft. j Api . 13 (6 a.m.) 1,670 sec. -ft. 

* 'winter discharge measurement made on thj 

a No gage-.ieip; ,t record; discharge compute

s day.

650 

080 

806 

788

988 

932 

967 

904 

842

87£ 

200 

570 

250 

090

080 

230 

150 

060 

160

£60 

240 

030 

842 

742

671 

666 

645 

595 

570

May

640 

726 

693 

682 

698

650 

600 

570 

555 

590

645 

782 

1,040 

1,240 

1,320

1,270 

1,280 

1.09L

925

530

866 

1,010 

1,140 

1,030 

918

884 

939 

872 

806 

759 

704

Maximum

43 

176

92

1,960

200 

1,280 

1,360 

1,650 

1,320 

1.070 

380 

63 

37

1,650

m. ) 1,600 s

June

688 

688 

645 

635 

625

625 

615 

630 

590 

545

660 

1,070 

1,030 

1,000 

974

904 

897 

884 

818 

748

918 

770 

698 

655 

630

570 

520 

480 

445 

415

July

380 

340 

310 

288 

265

242 

224 

207 

202 

202

176 

161 

146 

125 

106

95 

89 

84 

95 

103

92 

89 

81 

76 

71

67

67 

69 

78 

69 

63

Aug.

56 

53 

51 

50 

60

63 

56 

50 

50 

50

46 

42 

39 

46 

39

36 

34 

32 

31

30

29 

28 

2E 

31 

40

35 

32 

30

27 

26

Sept.

24 

24

23 

22 

23

22

2E 

22

21 

21

21

£2 

22 

23 

23 

22

22 

22 

21 

21 

22

27 

37 

33 

30 

30

Mining Mean *£«£

22 31.3 1,930 

23 47.9 2,850 

28 47.0 2.890

16 278 £01,400

35 67.9 4,180 

60 £96 16,410 

£66 577 35,460 

570 1,003 59,700 

555 863 53,070 

415 712 42,390 

63 150 9,250 

26 40.3 2,480 

21 23.7 1,410

21 320 232,000

ec.-ft. ; Apr. 1 (10 p.m. ) 2,040

La Grande and at Rondo

b Stage-discharge relation affected by
224 GRANDE RONDE RIVER BASIN

Grande Ronde River at La Grande, Oreg.

Location.--Water-stage recorder, lat. 45"21', long. 118°08', in sec. 36, T. 2 S. , R. 37 E.,

2 miles northwest of La Grande and 4 miles downstream from Fivepoint Creek. Datum of

gage is 2,831.25 feet above mean sea level, datum of 1929. 

Drainage area.--678 square miles. 

R" c ?^ available. February 1918 to June 1923, October 1925 to September 1950. November

1903 to September 1915 at Hils;ard, 4 miles upstream 

Average discharge. 36 years (1905-9, 1910-11, 1912-15, 1918-20, 1921-22, 1925-50), 360

second-feet. 

Extremes. Maximum discharge during year, 2,750 second-feet Apr. 1 (sags height, 5 57 feet)-

minimum, 18 second-feet Nov. 19 (gage height, 1.56 feet).

1903-15, 1918-23, 1925-50: 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 periods of ice effect or no gage-height record,

which are poor. Some discharge measurements made at cable 3 miles above station. Small

diversions above station for irrigation. 

Revisions (water years). W 768: 1933.

Rating table, water year 1949-50, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

2.2 

2.4 

2.6 

2.9 

3.3

143

210

290

435

650

3.8 980

4.3 1,380

4.9 1,970

5.4 2,550

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

28 

26 

25 

25 

28

34 

44 

42 

39

41

51 

42 

41

34

33 

31

30 

29 

29

25 

34 

36 

34 

33

34 

34 

34 

42 

47 

37

Nov.

36 

36 

34 

34 

34

34 

33 

37 

41 

42

44 

45 

44

39

37 

37 

31 

27

b25

b2S 

*b25 

bBO 

130 

119

89 

98 

196 

130 

114

Dec.

119

106 

82 

68 

86

89

75 

b70 

bGO 

b50

b45 

b40 

b50

b45

b50 

b50 

b50 

b45 

b45

b50 

b55 

bBO 

bBO 

b60

b60 

b65 

*b65 

b65

b60 

b60

Jan.

b55

b50 

b50 

b45 

b45

b45 

b45 

b50 

b50 

b60

b55 

b50 

b50

b45

b45 

b50 

b55 

b65

b90

b!20 

*b!60 

b200 

blSO 

a!50

a!30 

bllO 

b90 

b85 

b80 

a75

Feb.

a70 

a70 

a75 

a85 

a90

alOO 

alOS 

alio 

allO 

b!05

blOO 

blOO 

blOO

 b200

b25O 

b300 

b350 

b380 

b400

*b350 

395

529 

,180 

* ,990

,93n 

,580

,070

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 194E 

ary .

ter year 1949-5O .......................

Mar.

840 

775 

1,730 

1,860 

1,820

1,550 

1,110 

924 

762 

692

578 

502 

470

435

613

1,320 

1 , 520 

1,270 

1,070

917 

952

788 

723

650

600 

556 

502 

445 

490 

650

Apr.

1,630 

2,290 

1,530 

1,190 

1,150

1,380 

1,330 

1,420 

1,370 

1,270

1,330 

1,770

2,440 

1,940 

1,660

1,610 

1,780 

1,730 

1,610 

1,730

1,870 

1,860 

1.570 

1,270 

1,150

1,030 

1,030 

994 

917 

889

Secondfoot-days

1,078 

1,717 

1,925

143,199

2,425 

12,244 

27,564 

44,740 

39,397 

27,051 

5,469 

1,452 

792

165,854

May

1,010

1,170 

1,110 

1,090 

1,120

1,040 

952 

882 

861 

938

,080 

,310 

,680 

,940 

,98O

,860 

,840 

,570 

,320 

,190

,230 

,420 

,560 

,400 

,230

,190 

,250 

,170

,070 

,010 

924

Maximum

51 

196 

119

2,900

200 

1 990 

1 860 

2 440 

1 980 

1 370 

45O 

73 

39

2,440

June

910 

917 

868 

847 

840

834 

827 

910 

854 

788

875 

1,370 

1,330 

1,250 

1,190

1,130 

1,090 

1,090 

1,010 

910

1,100 

924 

827 

782 

756

668 

606 

556 

512 

480

July

450 

405 

370 

330 

304

274 

250 

230 

218 

234

203 

182 

165 

146 

138

130 

124 

119 

119 

119

111 

104 

96 

89

84

77 

75 

75 

89 

84 

75

Minimum

25 

25

4O

17

45 

70 

435 

889 

861 

480 

75 

30 

22

22

Aug.

68 

62 

58 

58 

66

73 

64 

58 

55 

55

55 

49

47 

53

51

44 

42 

37 

34 

33

31 

31 

30 

37 

47

45 

39 

36 

33 

31 

30

Mean

34.8 

57.2 

62.1

392

78.2 

437 

889 

1,491 

1,271 

902 

176 

46.8 

26.4

454

Sept.

29 

26 

27 

26

27

27 

27 

25 

25 

25

25 

25 

24 

24 

24

24 

24 

24 

25 

24

24 

23 

23 

22 

23

26 

39 

39 

33 

31

Runoff in 

acre-feet

2,140 

3,410 

3,820

284,000

4,810 

24,290 

54,670 

88,740 

78,140 

53,650 

10,850 

2,880 

1,570

329,000

Peak discharge (base, 1,900 see.-ft.).--Feb. 25 (10 p.m.) 2,240 sec.-ft.; Mar. 3 (10:30 p.m.) 

2,190 sec.-fb.; Mar. 17 (10:30 p.m.) 1,930 see.-fb.; Apr. 1 (12 p.m.) 2,750 sec.-ft.; ftpr. 13 

(11 a.m.) 2,600 sec.-ft.; May 15 (6 a.m.) 2,070 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for stations 

near Hilgard and at Rondowa.

b Stage-discharge relation affected by ice.
GRAIIDE RONDE RIVER B AS III 225 

Grande Ronde River at Rondowa, Oreg.

Location.--Water-stage recorder, lat. 45°44 I , lone. 117°47', in IW; sec. 23, T. 3N., R. 

40 E., at Rondowa, 500 feet downstream from Wallowa River. Datum of gage is 2,281.87 

feet above mean sea level, datum of 1929.

Drainage area.--2,555 square miles.

Records available.--October 1926 to September 1950.

Average discharge.--24 ;ears, 2,009 second-feet.

Extremes.--Maximum discharge during year, 9,160 second-feet Feb. 25 (cage height, G.1L 

feet); minimum, 430 second-feet Oct. 2, 3 (gage height, 1.03 feet).

1926-50: Maximum discharge, 19,900 second-feet Hay 28, 1948 (gage height, 9.76 

feet); minimum, 225 second-feet Dec. 19, 1935.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Many diversions above station for irrigation. Flow slightly regulated 

by Wallowa Lake Reservoir.

Revisions (water years). W 1093: 1927-29, 1932-33, 1936, 1938, 1939(M), 1943.

Rating table, water year 1949-5O, except periods of ice effec 

(gage height, in feet, and discharge, in second-feet)

1.0 410 2.0 1,250 4.5 5,500 

1.1 475 2.5 1,840 5.5 7.72O 

1.3 62O 3.0 2,550 6.0 8,870 

1.6 865 3.5 3,440

Discharge, In second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

442 

436 

436 

449 

582

605 

628 

590 

582

700

636 

598 

590 

590 

590

582 

582 

575 

568 

560

560

560 

560 

560 

SCO

552 

552 

575 

644 

598 

568

Nov.

560 

552 

545 

531

524

524 

517 

531 

568 

575

568 

582 

575 

568 

545

538 

531 

524

517 

517

439 

510 

652 

,090 

,350

,100 

,360 

,650 

,360 

,300

Dec.

1,200 

1,140 

1,020 

946 

955

910 

874 

840 

806 

788

724 

*684 

716 

676 

660

716 

732 

748 

700 

605

b640 

b660 

780 

840 

708

716 

740 

822 

b780 

b740 

b680

Jan.

b720 

b640 

b580 

b560 

b540

b640 

628 

652 

636 

660

652

652 

636 

560 

b540

b640

beoo

1.640 

b680 

b720

t900 

bl,500 

\)1,500 

bl,300 

*b 1,100

bl.OOO 

b950 

b900 

b860 

b860

beoo

Feb.

b760 

b800 

b780 b86" 

bl.OOO

bl.050 

b 1,050 

bl.050 

1,070 

1,020

1,010 

1,000 

964 

974 

1,050

1,510

1,900 

1,930 

2,050 

2,070

1,900 

1,810 

2,150 

5,480 

8,410

7,350 

6,730 

5,440

Month

October .....................................

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Bay.

June 

July 

Augu 

Sept

Wa

lendar year 1949

St............ ..........................

ter year 1949-50 .......................

Mar.

4,600 

4,060 

4,930 

5,500 

5,720

*5,570 

5,OOO 

4,490 

3,940 

3,520

3,040 

2,650 

2,370 

2,220 

2,140

2,370 

5,080 

5,790 

5,570 

4,950

4,450 

4,320 

3,900 

3,600 

3,310

3,060 

2,860 

2,610 

2,400 

2,310 

2,830

Apr.

4, 

6, 

5, 

4,

4,

4,

4, 

4, 

4, 

4,

4, 

4, 

5, 

5, 

5,

5, 

5, 

5, 

5, 

5,

5, 

6, 

5, 

5, 

4,

4, 

4, 

4, 

3, 

3,

Secondfoot-days

21,753 

 24,546

866,910

24,246 

63,168 

119,160 

151,160 

171,930 

13d, 14 

87,800 

24,554 

16,007

916,074

890 

140 

460 

930 

640

510 

410 

530 

530

410

450 

810

500 

850 

720

570 

740 

650 

570 

650

980 

120 

810 

270 

850

450 

300 

000 

760 

660

May

3,820 

4,020 

3,940 

4,000 

4,040

3,900 

3,720 

3,600 

3,560 

3,640

3,980 

4,700 

5,720 

6,420 

7,080

7,220 

7,420 

6,930 

6,270 

5,790

5,790 

6,400 

7,110 

6,930 

6,600

6,560 

6,860 

6,750 

6,620 

6,360 

6,180

Maximum

7OO 

1,650 

1,200

12,400

1,500 

8,410 

5,790 

6,140 

7,420 

8,760 

7,000 

1,100 

612

8,760

June

6,230 

6,470 

6,420 

6,510 

6,820

6,820 

6,530 

5,980 

5,460 

5,120

5,080 

5,720 

6,160 

6,230 

a6,200

a6,800 

a7,800 

7,840 

7,840 

8,000

8,760 

8,160 

6,970 

6,310 

5,650

5,060 

5,020 

5,460 

6,120 

a6,600

July

a7,000 

a6,400 

a5,600 

aS.OOO 

a4,700

a4, 700 

a4,30O 

a3,900 

a3,700 

a3,800

a3,300 

a3,000 

a2,700 

a2,500 

a2 , 400

a2,200 

a2,100 

a2,OOO 

al,950 

al.800

al,700 

al.600 

al.500 

al,400 

al,300

al,200 

al,250 

al,250 

al,200 

al.200 

al,150

Aug.

al.100 

al,050 

974 

928 

964

984 

919 

892 

892 

892

883 

874 

848 

848 

831

7 BO 

780 

748 

700 

668

644 

636 

636 

628 

692

660 

652

644 

620 

605 

582

Minimum Mean

436 568 

489 725 

605 792

374 2,430

540 

760 

2,140 

3,660 

3,560 

5,020 

1,150 

582 

489

782 

E.256 

3,844 

3,039 

3,546

2,832 

792 

534

436 2,510

Peak discharge (base, 5,000 sec. -ft . ) .--Pet . 25 (4 a.m.) 9,160 sec. -ft.; Mar. 5 (10:30

Sept.

560 

545 

538 

531 

545

545 

538 

538 

545

545

538 

517 

496

503 

496

510 

531 

531 

524 

510

510 

503 

496 

489 

503

590 

612 

575 

568 

575

Runoff in 

acre-feet

34,930 

43,150 

48,690

1,759,000

48,090 

125,300 

236,400 

299,800 

341,000 

385,100 

174,100 

48,700 

31,750

1,817,000

p.m.) 6,120

.) 6,380 sec.-ft.; Apr. 22 (4 a.m.) 6,200 

9 a.m.) 9,040 sec.-ft.; July 1 (time unknown)

secT-ft. ;~Mar. 17 (10 p.m.T "6,510 sec. -f t.; Apr. 1 { 

sec.-ft.; May 17 (11 a.m.) 7,630 sec.-ft.; June 21 ( 

7,630 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of recorded range in stage, when available, 

and records for station at Tro;r.

b Stage-discharge relation affected by ice.
GRA1IDE ROHDE RIVER EASIN

Location.--Water-stage recorder, lat. 45°57', long. 117°27', in NWt sec. 4. T. 5 N. . R.

., at bridge at Troy, 100 feet downstream from Wenaha River. Prior to Oct. 1,

1049. wire-weight gage at game site at datura 12 feet lower.

Drainage area.--3,275 square miles.

Records available.--August 1944 to September 1950.

Extremes.--Maximum discharge observed during year, 17,400 second-feet Pel. 25 (gage height, 

H.fc1 ? feet); nininium observed, 703 second-feet Sept. 23, 24.

1944-50: Maximum discharge observed, 30,000 second-feet Dec. 15, 194C (gage height, 

11.20 feet, present datum); minimum observed, 470 second-feet Sept. 11, 1944.

Remarks.--Records good except those for periods of ice effect or shifting control, which 

are fair. Plow slightly regulated by "fallowa Lake and Miriam Lake Reservoirs. Many 

diversions for irrigation near La Grande, Enterprise, and Wallowa; no diversion around 

station.

Rating table, water year 1949-5O, except periods of Ice effect or shifting 

(gage height, In feet, and discharge, In second-feet)

2.2 695

2.5 910

3.0 1,390

3.5 1,960

4.0 2,650

4.5 3,470

5.0 4,440

5.5 5,550

6.0 6,830

7.0 9,900

8.0 13,600

8.5 15,800

Discharge, In second-feet, water year October 1949 to September 1950

Day Oct. Dec. Feb. July Sept.

1,000

991

964

946

1,710

1,610

1,500

1,330

1,340

bl.050

bl.100 

tl,100 

bl,250 

I'l, 450

9,010

8,590

7,950

7,250

6,830

973

955

946

928

910

886

1,410

1 , 840

886

964

991

1 , 040

955

838

87O

B92

1,080

1 , C 90

1 , lud

b900 

902 

910 

795 

760

t900 

bl.100

b 1,300 

t.2,400 

1.2,400 

b 1,900 

1 1,FOO

4,440

3,950

3,630

3,490

3,310

2,640

2,490

1,380

1,320

1,280

1,280

1,260

1,220

1,190

1,180

1,180

1,150

1,110

1,090

1,070

1,030

991

823

809

728

754

760

754

740

10,600

10,300

8,850

7,770

7,110

4,740

4,400

4,070

3,710

3,610

4,210

Secondfoot-days

Runoff in 

acre -feet

October.. 

November. 

December.

30,929

33,840

34,740

760

809

838

998

1,128

1,121

Calendar year 1949 3,589 2,598,000

January.. 

February. 

March. . . .

April....

May......

June.....

July......

August....

September.

740

1,050

3,190

6,120

5,990

6,120

1,560

Water year 1949-50 1,355,198

Peak discharge (base, 7,000 sec.-ft.).--Pet. 25 (3 a.m.) 17,400 sec, 

sec.-ft.; Mar. 18 (1 a.m.) 11,100 sec.-ft.; Apr. 2 (2-4 a.m.) 13,000 s 

10,800 sec.-ft.; May 15 (7 a.ra.) 12,200 see.-ft.; June 21 (2 p.m.) 11, 

8,850 sec.-ft.

* Winter discharge measurement male on this day.

a No gage-height record; discharge computed on basis of records for

b Stage-discharge relation affected by ice.

h Computed on basis of twi:e-daily readings of wire-weight gage.

Note. Shifting-control nethol used Oct. 1 to Hov. 23.

-ft.; M 

ec. -ft.; 

100 sec.

r. e (4 a.m.) 9,4OO 

Apr. 22 (l a.m.) 

-ft.j July 1 (10 a.m.)
AIIDE RONDE RIVEP BASIN

Catlierine Creek near Union, dreg.

Drainage area.--105 square miles.

Records available.--Hay 190C to May 190? (gage heights only), August 1911 to December 1912, 

ir.rch to Septenber 1915, February 1918 to August 1919, October 1925 to September 1950.

Extremes. --Maxiuuin discharge during year, 605 second-feet May 22 (gage height, 2.79 feet); 

nlnlnum, 22 second-feet Oct. 20 (gage height, 0.5£ foot).

1906-7, 1911-12, 1915, 1918-19, 1925-50: Maxinum discharge, 1,740 second-feet May 27 

1948 (gage height, 4.57 feet); minimum recorded, 4 second-feet IIov. 20, 27, 1930.

Rating table, water year 1949-50, except periods of Ice effe 

(gage height, In feet, and discharge, In second-feet)

0.5 18 1.0 65 1.9 260 

.6 25 1.2 95 2.3 390 

.7 3? 1.4 133 2.7 560 

.8 42 1.6 178

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17

IB 

19 

20

21 

22 

23

24 

25

26 

27 

2B 

29 

30 

31

Oct.

a25 

25 

26 

54

;i

35 

51 

52 

44

54 

35

31 

31

30 

28

27

:e

28 

27 

27

25 "5

SI

26 

25

Nov.

25 

24 

24 

25

24 

24 

27 

28 

27

31

30 

29

27 

b25 

b25 

b25 

t25

b25 

*b24 

51 

102 

65

55

89 

75 

53 

54

Dec.

49 

45

43 

40

b?4 

33

32

b30 

b35 

b40

*t37 

1)35

b55 

b35 

b35 

b35 

b35

b40 

b45 

b45 

38 

b40

b40 

t40 

*31 

31 

b30 

b30

Jan.

b30

b3o

1)30 

b25 

b25

b£5 

b25 

b25 

b30 

b30

b30 

b30 

b30 

t25

T:25

b25 

b25 

b30 

b30 

b30

t30 

b30 

b30 

*b34 

b40

b50 

b45 

t40 

t40 

b35 

b35

Feb.

b30 

b50 

b25 

b25 

bC5

b30 

b30 

b30 

b30 

b30

bo 5 

b35 

b35 

b35 

b35

b40

*b4S

46

49 

52

50 

43 

50 

58 

7C

*95 

108 

95

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1949

1.. .....................................

ter year 1949-5O .......................

Pe-k ilscharge (case, 500 aeo.-ft. ) .--M-y

Mar.

81 

75

85 

102 

113

111 

97 

85 

If. 

S3

63 

58 

57 

53 

51

52 

64 

72 

76 

76

73 

76

72

69

66 

64 

61 

57 

57 

60

Apr.

82 

121 

121 

111 

108

115 

121 

137 

144 

144

148 

181 

231

196

194

£31 

246 

248 

265

284 

2^3

226 

207

194 

196 

178 

160 

157

Secondfoot-days

905 

1,125

1,143

45,039

9f4 

1,274

5,512 

10,890 

10,838 

4,278 

1,407 

8^3

41,502

May

188 

196 

188 

181 

169

160 

153 

153 

162 

188

240 

341 

422 

498 

530

515 

494 

410 

350 

347

406 

490 

525 

482 

458

466 

478 

454 

434 

410 

402

Maximum

44 

10C 

49

932

50

108 

113 

293 

530 

454 

33E 

65 

38

530

June

418 

430 

438 

442 

454

44S

5ao

347

314 

302

323 

350 

358 

547 

350

378 

438 

406 

378 

h394

a430' 

414 

344 

314 

272

246 

251 

281 

308

329

July

332 

302 

281 

260 

248

231 

209 

191 

181 

166

146 

133 

123 

115 

109

102

99 

93 

92 

87

81 

78 

73 

71 

68

69 

69 

71

69 

66 

65

Aug.

eo

58 

58 

58 

65

63 

57 

54 

53 

51

49 

46 

45 

45 

43

42 

40 

40 

59 

58

38 

38 

37 

42 

40

38 

36

35 

34 

33 

32

Sept.

31 

31 

30 

30 

30

30

29 

30 

29

29 

28 

27 

27 

27

27

9 

8

a 1

1 

1

7 

7

38 

33 

31 

30 

30

Minimum Mean ££«.£

25 29.2 1,800 

24 5^.5 2,230 

30 36.9 C.270

123 b9,330

25 31.1 1,910 

25 45.5 2,530 

51 72.4 4,450 

8C 184 10,930 

153 351 21,600 

246 363 21,600 

63 138 8,490 

32 45.4 2,790 

27 29.1 1,730

24 114 82,330

1C (10 p.-n. ) 590 sea. -ft.; Bay 22 (9:50 p.m.) 605 sec.-

i". ; Jane 21 v time unknown) at OUT EGO ,-<=:: .-:?t. 

* Ulnter discharge measurement made on this day. 

H No gage-height record; 3ischar~e computed on basis of records for Grande Ronde River at La Qrande

near Hilgard and Powder River at Saliel 

t Stage-dlEcharge relation Rffectei Yy lot. 

h Computed from ot^ff-gage readir.g.
228 GRANDE RONDE RIVER BASIN

Indian Creek near Imbler, Oreg.

Location.--Water-stage recorder, lat. 45°26', long. 117°49', in 85 sec. 33, T. IS., R. 40 

E., MO yards upstream from North Pork and 7 miles southeast of Imbler.

Drainage area. 22 square miles.

Records available. October 1945 to September 1950 (discontinued) in reports of Geological 

Survey.March 1938 to September 1945 (incomplete) in files of Oregon State engineer.

Extremes.--Maximum discharge during year, 301 second-feet June 4; maximum gage height, 3.41 

feet between Feb. 16-28 (ice jam); minimum discharge, 1.7 second-feet Oct. 17 (gage 

height, 0.46 foot).

1938-50: Maximum discharge, 818 second-feet May 27, 1948, from rating curve extended 

above 270 second-feet; maximum gage height, 4.09 feet sometime during period Jan. 4-7, 

1947 (ice jam); minimum discharge, 0.1 second-foot Nov. 15, 1939 (gage height, 0.05 

foot).

Remarks.--Records fair except those for periods of ice effect or no gage-height record, 

which are poor. No diversion or regulation above station.

Rating tables, water year 1949-5O, except periods of ice effect

(gage height, In feet, and discharge, in second-feet)

(Backwater from debris Oct. 1-4, Apr. 12 to May 13)

Oct. 1 to Nov. 27

0.4 

.5 

.6

3.2 

5.0 

7.5

0.9

1.0

1.1

1.2

0.5

.6 

.7

3.2

5.0

7.5

11

.9 15

Nov. 28 to Sept.30

.0 20

.1 26

.2 33

.3 42

.5 65

1.7 

1.9 

2.1

2.3

95

135

185

250

Discharge, In second-feet, water year October 1949 to September 195°

Bay

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.8

2.7

2.7

2.7

6.5

5.0

4.2

4.6

6.2

9.7

5.7

6 * 2

5.0

4.4

4.4

4.2

3.4

3.3

5.0

5.2

4.6

3.6

3.6

3.6

3.8

3.8

4.0

7.5

7.6

5.0

4.6

Nov.

4.4

4.2

4.0

4.0

3.8

3.8

3.8

4.8

4.8

4.6

5.0

&. 2

5.4

5.0

4.8

4.6

4.4

3.8

b3.6

b4.2

b5.0

b5.0

9.0

2O

15

14

30

32

*24

22

-

Dec.

20

19

1C

1 16

L6

14

b!3

bir

til

tio

b9

blO

*bll

bll

bio

blO

blO

blO

110

t9

b9

b9

blO

bll

bll

bll

til

8.6

8.6

j.S

8.2

Jan.

8.2

b8

b8

b7

b7

b?

b?

b7

b7

7.5

7.5

7.5

b7.5

b7

b7

b7

7.0

7.2

38

a8

a8

a9

*blO

bll

blO

blO

b9

b9

b8

b8

b8

Month

October . .......... ...

November . . . .... ...... .....

December .......... . . .

Calendar year 1949 .........

January ..... ... ... .........

February . . . ......

March . . ........... .

April . . . . . ... ......

May . . . .......

June ...... .... ... . . . . .

July ....................

August .... ........ ... . .

September . .... .....

Water year 1949-50 ....

Feb.

b7

a7

a7

a7

a6

a7

a8

a8

a8

as

a9

a9

a9

a9

alO

all

a!2

a!3

a!3

a!4

a!3

a!3

a!4

a!5

a20

a25

a35

*a34

.

-

-

Secondfoot-days

145.6

2b5.2

353.0

15,6b5.5

247.4

351

763

1 257

4*577

6,612

1,533

317.0

146.2

16,567.4

Mar.

29

25

28

29

30

30

27

25

24

22

21

b20

19

18

18

20

34

34

32

30

27

27

*25

24

23

22

21

20

19

IS

21

Maximum

9.7

32

20

400

11

35

34

68

268

289

152

16

8.2

289

Apr.

28

34

32

31

30

30

30

32

31

3O

30

33

39

38

37

38

43

44

46

53

63

68

64

59

54

51

50

48

45

46

-

May

55

57

53

50

48

43

41

40

40

42

53

78

109

152

182

200

209

185

iea

lec

180

222

250

243

236

246

268

260

250

229

226

Minimum

2.7

3.6

8.2

2.3

7.0

6

18

28

40

131

16

6.5

3.9

2.7

June

246

260

264

285

289

274

243

209

188

178

200

229

236

243

240

246

257

254

246

257

271

240

197

175

148

131

133

148

160

165

-

Mean

4.70

8.84

11.4

42.9

7.98

12.5

C4.6

41.9

148

220

49.5

10.2

4.87

45.4

July

152

133

120

109

100

85

75

66

65

63

51

44

40

38

35

32

30

27

28

25

24

24

22

21

19

18

18

18

18

17

16

Per

square 

mile

0.214

.402

.518

1.95

.363

.568

1.12

1.90

b.73

10.0

.464

.221

2.06

Aug.

15

15

14

16

15

14

13

13

in

12

11

11

11

1.0

9.6

9.6

9.2

8.9

8.6

8.2

7.8

7.8

7.8

8.2

7.8

7.5

7.2

7.0

6.8

6.5

6.5

Sept.

6.2

6.2

6.0

?5.7

a5.3

r5.0

a4.8

4.6

4.6

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.3

4.1

3.9

3.9

3.9

4.3

8.2

6.2

4.8

4.6

4.6

-

Runoff

Inches

0.?5

.45

.60

26.49

.42

.59

1.29

2.12

7.74

11.18

2.59

.54

.25

28.02

Acre-feet

269

326

'00

31,070

491

696

1,510

2,4£0

9,080

15,110

3,040

629

29O

32,850

Peak discharge (base. 250 sec.-ft.).--May 28 (7:30 p.m.) 274 sec.-ft.; June 4 (8 p.m.) 3O1 sec.- 

ft.; June 21 (7 p.m.) 278 sec.-ft.

* Winter discharge measurement made on this day.

a No t*age-height record; discharge computed on basis of weather records and records for Catherine 

Creek near Union.

lr Stage-discharge relation affected by ice.
GRANDE RONDE RIVER BASIN 229 

East Pork Wallowa River near Joseph, Oreg.

Location. --Water-stage recorder and concrete control, lat. 45°16', long. 117°13', in SE-f 

sec. 29, T. 3 S., R. 45 E., a quarter of a mile above confluence with West Fork, 1 mile 

upstream from Wallowa Lake, and 6 miles south of Joseph. Datura of gage is 4,517.69 feet 

above mean sea level, datum of 1929. Prior to Apr. 8, 1950, staff gage at same site and 

datum.

Drainage area. 9.6 square miles.

Records available.--July 1924 to September 1950.

Average discharge. 26 years, 12.0 second-feet.

Extremes.--Maximum discharge during year, 87 second-feet June 30 (gage height, 3.42 feet);

 minimum observed, 0.3 second-foot Oct. 8, 11, 13, 14, 17, 18, 19.

1924-50: 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 secondfoot Dec-. 7, 1929, Nov. 1,3, 19^5.

Remarks.--Records good Hay 15 to Aug. 24, fair Apr. 8 to May 14, Aug. 2^ to Sept. 30,

and poor the remainder of the year. Wallowa Palls power plant of Pacific Power & Light 

Co. diverts water 1 mile above station.

Discharge, In second-feet, water year October 1949 to September 195O

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.

0.5

a. 5 

.5 

.5 

.5

.5 

.6

!?

.8

.4 

.4 

.3

J4

.4 

.5 

.4 

.3 

.4

.5 

.6 

.7 

.5 

.7

.4 

.5 

4.5 

3.8 

.5 

.5

Nov.

0.5

.5

.5 

.4

.6

a. 6

.e

.7 

1.4

.6 

.7 

.6 

.9

.7

1.0 

1.0 

1.3

1.3 

al.3

al.3 

2.5 

4.5 

aS.O 

6.8

2.7 

d5.0 

2.9 

2.7 

.9

Dec.

bl.O 

1.2 

al.O 

al.O 

al.O

bl.O

al.2 

al 2 

bl!2

al.2

*tl.6 

al.O 

al.O 

al.O

al.O

al.O 

al.O 

al.O 

al.O 

al.O

bl.O 

bl.O 

al.O 

al.O 

al.O

.9 

a. 9 

b.9 

a. 8 

a. 7 

.5

Jan.

aO.5

al.O 

a. 5 

a. 5 

a. 5

a. 5

a. 8 

al.O

al.O 

a. 9 

a. 9

a. 9 

a. 9

a. 8 

a. 8 

a. 8 

a. 8 

*1.0

1.2 

al.4

al.2 

al.O 

a. 9

a. 9 

a. 8 

a. 7

a. 6 

a. 6 

a. 5

Feb.

aO.5

a. 6 

a. 7 

a. 8 

a. 8

a. 8 

a. 8 

a. 8

a. 8 

a. 8

a. 8 

a. 8 

al.O 

al.O 

al.O

al.3 

al.3 

al.O 

al.O 

al.3

al.6 

al.3 

al.3 

1.3 

al.3

al.3 

al.2 

al.O

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1949

st...... ................................

ter year 1949-50 .......................

Mar.

al.O 

*bl.O 

al.O 

al.O 

al.O

al.O 

al.O 

bl.O 

al.O 

al.O

al.O 

al.O 

al.O 

al.O 

al.O

al.O 

al.O 

al.O

a. 9 

a. 8

a. 8

a. 8 

a. 8 

a. 8 

a. 8

a. 7 

a. 7 

*b.7 

a. 8 

a. 8 

a. 9

Apr.

al.3 

al.3 

al.2 

al.O

a. 7 

a. 7 

.7 

.7 

.7

.7 

1.0 

1.0 

.9 

.8

.8 

.9 

.8 

.9

1.3

.4 

.4

.3

.0

.9 

1.0 

.9 

.9 

.9

Secondfoot-days

22.6 

53.0 

31.3

3,263.7

25.0 

28.2 

28.3 

29.1 

320.1 

1,263 

1,173 

290.0 

30.5

3,294.1

May

1.2 

.9 

.9 

.9 

.9

.8 

.8 

.8 

.7 

.8

UO 

2.3 

5.4 

9.7 

12

13 

12 

10 

11 

13

15

2L 

16

16

20 

21 

21 

23 

23 

24

Maximum

4.5 

8.0 

1.6

70

1.4 

1.6 

1.0 

1.4 

24 

73 

79 

17 

2.1

79

June

25 

26 

27

29 

31

30

27 

25 

23

23

24 

30 

32 

32 

34

42

45 

48 

53 

58

70 

67

£3 

57 

52

50

51 

55 

60 

73

July

79 

70 

66 

64 

61

58 

52 

47 

46 

45

40

38 

35

35 

32

32

30 

29 

29 

27

27 

26 

26 

25 

25

24

24 

23 

21 

19 

18

Minimum

0.3 

.4

.5

.2

.5 

.5 

.7 

.7 

.7 

23 

18 

1.9 

.4

.3

Aug.

16

17 

16 

15 

17

14 

14 

11 

12 

15

12 

11 

11 

11 

9.4

11 

8.8 

7.8 

8.0 

7.0

.6.8 

6.5 

5.3 

5.6 

4.9

4.5 

4.5 

3.6 

2.4 

2.0 

1.9

Mean

0.73 

1.77 

1.01

8.94

.81 

1.01 

.91 

.97 

10.3 

42.1 

37.8 

9.35 

1.02

9.02

Sept.

.8 

.6

.2 

.2 

.3 

1.2 

.8

.7

.7 

2.1 

.9 

.7

1.5 

1.3 

1.0 

.8

.7

.7

.6 

.5 

.4

.6

1*2 

.7 

.9 

.8 

1.0

Runoff In 

acre -feet

45 

105 

62

6,480

50 

56 

56 

58 

635 

2,510 

2,330 

575 

60

6,540

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records, records for Wallowa Falls 

power-plant tallrace, and Hurricane Creek near Joseph, 

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed as explained In footnote a. 

Note. Shifting-control method used Oct. 1-27, Apr. 8 to May 14, Aug. 25 to Sept. 30.
GR.SIIDE KO'IDE RIVER BASI1I

Falls power-plai.i; tailrare near Joseph, Oreg.

Location. --Water-stage re: order and shart-:rected weir, lat . 45 0 1C>, long. 117°13', in

., R. 43 E., a quarter mile upstream fror. mouth and _ 

age is 4,624.7"' feet above mean sea" level, datum of 1 C| 29. Prior to

-jif gage at same site and datum.

Extremes. --Ma.aru.u e daring year, 17 second-leer June 22;

2'^ond-feec Apr. 11.

ail-, discharge, 1 nd-feet Aug. I 3 , Cu, 194y, June 22, 1950;

Rer.ar;:s. --records good r pr. 10 to May 23 and Jane 1 to .Sept. 3u, others poor.

I-1 :' pcrirer-plaivt operator prior to Apr. 10. Flow regulated lor impulse wheel i

jowerhouse. Water diverted at Jan on East Fork Wallowa River into eonc'uit 1 mile above

powerhouse ar.j rii into West Forl: a quarter of a irile helow station.

Discharge, in second-feet, water year October 1349 to September 1950

Day

1 

Z 

3 

 t 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31-

Oct.

15 

14 

1; 

13 

14

13 

13 

14

14

13 

13 

15

13 

15 

13 

11 

12

13 

15 

13 

U 

13

13 

i; 

14 

14 

13 

1.

Nov.

14 

14 

13 

13

12

1 

1 

1

1

1 

1 

1

1 

1 

1 

1 

1

1

1: 

13 

14 

13

13 

Ifa 

14 

13 

13

"

Dec.

14 

12 

11 

12 

13

13

1 2

13 

13

11

13 

15

13

1 

1 

1 

1 

1

1 

1 

1 

1 

15

12

12i:

12 

12

11

Jan.

12 

10 

11

12

12 

12 

1 2 

12

13" 

12 

12

12

12

12 

15

15 

12

i:

12

12 

12 

12 

12

i:

IS

Feb.

12 

11 

12 

12 

IE

11 

11 

12 

12 

12

12

11 

12 

12

11 

11 

12 

12 

11

10 

11

12 

12 

12

12 

12

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1943

ter year 1949-50 .......................

Mar.

11 

11 

12 

12 

11

11 

11 

12 

11 

11

12 

11 

12 

11 

11

11 

12 

11 

11 

11

11 

11 

11 

12 

11

11 

11 

12 

11 

11 

12

Apr.

12 

12 

11 

11 

11

11 

11

11 

11

9.5

8.7 

9.8 

9.8

9.8 

9.2

9.2 

9.3 

9.2 

10 

11

11 

11 

11 

10 

10

10 

10 

10 

10 

10

Secondfoot-days

403 

385

389

4,878.3

572

350

303.4 

572 

425.5 

385 

400 

434

4,554.9

May

11 

10 

10 

10 

10

10 

10 

10 

10

11

12

13 

15 

15 

14

13 

13 

12 

12 

12

14

12 

15 

15

15 

12 

13 

12 

12 

13

Maximum

14 

15 

14

17

13 

12 

12 

12 

15 

17 

14 

15 

15

17

June

14 

14 

14 

14 

15

15 

14 

15 

15 

15

15 

9.5 

11

13 

15

12 

15 

15 

15

ie

15 

17 

14 

15 

IB

14 

15

i;

12 

14

July

14 

14 

14

13 

12

15 

12 

13 

15 

14

12 

10 

11 

10

12

11

13 

15 

12

12

12 

13 

12 

12 

12

13 

12 

12 

13 

12

Mini 

12 

12 

11

8. 

10

10

11

8.7 

10 

9.5 

10 

11 

13

8.7

Aug.

13

12 

12 

15

13

13 

13 

14 

13 

11

11 

12 

11 

12 

12

11 

12 

13 

13 

14

12 

13 

15 

14

12

14

13 

14 

15 

15 

15

Mean

12.8 

12.5

13.4

12.0 11. fell. 3 

10.3 

12.0 

14.2 

12.4 

12.9 

14.5

12.5

Sept.

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 1.- 

1_

,4

14 

14 

14 

15 

14

14 

14 

14 

14 

14

15 

14 

14 

14 

14

Runoff In 

acre-feet

311 

764 

772

9,680

738 

£47 

694 

£14 

738 

844 

760 

793 

861

9,040

?d May 24 to June 12; discharge computed on taels of power-plant records.
GRANDE RONDE RIVER BASIN "- 1 

Hurricane Creel: near Joseph, Oreg.

Location. Water-stage r^oivbr, lat. 45°SO', long. 117°18', in NEij sec. 3, T. 3 S., R. 44 

E.,ipstream from Intake of Moonshine ditch and 3j miles southwest of Joseph.

Drainage area. 31 square miles.

Records available.--April to September 1915, April 13S4 to September 1950.

Average discharge .--33 years (1JSV-SO) , 6S.3 e^onil-f-; t.

Extremes.--Maximum discharge during year, 562 second-feet June 30 I minimum, 17 second-feet Jan. 10.

1915, 1924-50: Maximum discharge, 1,110 second-feet June 9, 1948 (gage height, 3.55 

feet); minimum recorded, 3.4 second-feet Feb. 10, 1938, Feb. 6, 1946, probably caused by 

ice jam upstream.

Remarks.--Records fair except those for period of no gage-height record, which are poor. 

Ho diversion or regulation above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

z

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

ze

27 

28 

29 

30 

31

Oct.

27 

27 

26 

26 

29

28 

28 

27 

30 

31

30 

29 

27 

27 

27

27 

26

25 

25

25

25 

25 

24 

25 

25

24 

24 

31 

29 

26 

26

Nov.

26 

5 

5 

5 

5

4 

5 

5 

5 

5

5 

5 

5

5 

5

5 

5 

5 

4 

4

3

27 

70 

47

40

65 

50 

41 

39

Dec.

37 

33 

30 

32

32

31 

30 

30 

29

6 

6 

6 

5 

7

9 

9 

8

5

6 

7

6 

5

4 

5

5

4 

24

Jan.

24 

23 

20

C3

23 

24 

24 

23 

23

23 

23 

23

23

23 

23 

23 

23 

25

25 

24 

24 

22 

20

23 

23

22

Feb.

22

3 

3

3

3

2

1

2

2

 5

Z

Z

Z

5 

5

5 

4

3

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

mber. . . .......--- - - - ..-.....- .

lendar year 194J

h. ......................................

1.... ...................................

ter year 1949-50 .......................

Peak discharge (base, 400 sec. -ft.). June

Mar.

23 

23 

23 

23 

24

E4

24

24 

24

22 

23 

23 

23

23 

24 

23

22 

22

22 

21 

21 

21

21 

21 

21 

21

21

22

Apr.

25 

25 

24

23 

24

24 

24 

24 

24 

24

24 

25 

29 

27 

27

27 

30 

30 

31 

35

28 

41 

39 

38 

 38

37 

37 

37

36 

36

Secondfoot-days

831 

323 

858

28,405

709 

632 

£97 

903 

3,407 

7,138 

6,623 

2,303 

1,208

26,232

20 (7 p.m.)

May

38 

37 

37 

37

36

35 

35 

34 

34 

35

44 

60 

82 

101 

111

119 

125 

108 

103 

108

148 

188 

195 

181 

174

195 

207 

199 

203 

199 

199

Maximum

31 

70 

37

447

25 

25 

24 

41 

207 

418 

336 

127 

50

418

June

223 

223 

219 

231 

253

235 

192 

170 

157 

154

154 

157 

178 

181 

215

271 

262 

258 

285 

325

336 

305 

253 

227 

199

192 

223 

276 

366 

418

July

336

315 

310 

290

310

295 

271 

253 

271 

253

219 

203 

207 

211 

207

195 

188 

184 

184 

174

170 

178 

178 

170 

167

167 

170 

157 

136 

127 

127

Minimum

24 

23 

24

12

20 

21 

21 

23 

54 

154 

127 

48 

31

20

460 sec. -ft.; June 30

Aug.

127 

127 

1E5 

114 

108

97 

92 

84 

84 

79

72 

72 

72 

74 

72

68 

67 

65 

65

eo

58 

56 

54 

56 

53

50 

48 

50 

52 

52 

50

Mean

26.8 

30.8 

27.7

77.8

22.9

22is 

30.1 

110 

238 

214 

74.3 

40.3

71.9

Sept.

49 

49 

49 

49 

48

47 

44 

44 

43 

42

41 

40 

39 

38 

37

37 

37

36 

34 

33

33 

33 

32 

a31 

a55

a50 

a45 

a40 

a38 

a35

Runoff in 

acre-feet

1,650 

1,830 

1,700

56,540

1,410 

1,250 

1,380 

1,790 

6,760 

14,160 

13,140 

4,570 

2,400

52,040

(8 p.m.) 562 sec. -ft.

e-height record; discharge computed on basis of records for Lostine River near Lostine and 

Bear Creek near Wallowa.
232 GRANDE RONDE RIVER BASIN

Lostine River near Lostine, Oreg.

Location.--Water-stage recorder, lat. 45°26 I , long. 117°26', in NWi sec. 34, T. 1 S., R. 

43 E., 3\ miles south of Lostine and 10 miles upstream from mouth.

Drainage area.--70 square miles.

Records available.--August 1912 to March 1914, April to September 1915, July 1925 to September 1950.

Average discharge.--23 years (1912-13, 1928-50), 186 second-feet.

Extremes. Maximum discharge during year, 1,760 second-feet July 1; minimum, 26 second-feet 

 Nov. 20.

1912-14, 1915, 1925-50: Maximum discharge, 2,540 second-feet May 27, 1913; minimum 

recorded, 10 second-feet Nov. 28-30, 1936.

Remarks. Records fair except those for periods of ice effect or no gage-height record, 

wnTch are poor. No large diversions above station. Flow slightly regulated by Minam 

Lake Reservoir.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

36 

34 

32 

31 

44

41 

42 

38 

42 

58

43 

43 

40 

38 

38

38 

35 

36 

35 

35

34 

34 

34 

33 

34

33 

33 

49 

59 

40 

39

Nov.

37 

36 

36 

35 

34

34 

34 

35 

35 

34_

36 

37 

36 

34 

33

34 

33 

3L 

3L 

29

30 

30 

50 

220 

168

118 

234 

188 

145 

134

Dec.

118 

109 

88 

94 

88

84 

81 

77 

74 

68

62 

83 

65 

57 

60

60 

57 

56 

52 

b40

*53 

51 

51 

47 

46

46 

49 

47 

44 

43 

41

Jan.

42 

b34 

b37 

b38 

b37

b37 

36 

36 

35 

37

38 

38

b36 

b36 

b39

40 

40 

39 

41 

*51

58 

60 

51 

44 

b40

49 

45 

b43 

b40 

b35 

a35

Feb.

a35 

a35 

a35 

a40 

a45

a4O 

a35 

a35 

a35 

a35

a40 

a40 

a40 

a40 

a40

b35 

b35 

b35 

b35 

b35

b35 

38 

40 

*69 

92

87 

87 

75

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MATT

June 

July 

Augu 

Sept

Wa

mber ....................................

lendar year L94 

ary

h.. .....................................

1.......................................

ter year 1949-50 .......................

Mar.

70 

*66 

66 

70 

75

76 

71 

67 

63 

61

57 

54 

56 

56 

55

55 

85 

80 

79 

73

70 

70 

67 

65 

63

61 

60 

59 

57 

57 

69

Apr.

109 

126 

107 

99 

95

a90 

a85 

a85 

a85 

82

83 

91 

126 

118

112

111 

123 

129 

130 

146

175 

186 

177 

158 

145

139 

134 

126 

118 

116

Secondfoot-clays

1,201 

2,001 

1,971

74,104

1,267 

1,268 

2,033 

3,606 

11,470 

26,514 

22,134 

4,042 

1,640

79,147

May

123 

115 

112 

110 

106

101 

98 

94 

92 

105

134 

205 

314 

412 

455

461 

473 

385 

335 

335

422 

590 

690 

614 

572

623 

704 

682 

668 

668 

672

Maximum

59 

234 

118

1,360

60 

92 

85 

186 

704 

1,510 

1,530 

228 

70

1,530

June

735 

774 

780 

850 

934

903 

693 

554 

479 

446

506 

638 

710 

732 

833

1,060 

1,220 

1,200 

1,210 

1,290

1,510 

1,260 

959 

794 

629

569 

682 

934 

1,190 

1,440

July

,530 

,380 

,250 

,180 

,210

,190 

,070 

973 

1,010 

994

798 

682 

665 

686 

650

611 

563 

548 

563 

485

455 

482 

464 

431 

395

378 

390 

352 

285 

238 

226

Minimum

31 

29 

40

29

34 

35 

54 

82 

92 

446 

226 

71 

43

29

Aug.

224 

228 

224 

207 

192

178 

162 

158 

151 

145

142 

136 

134 

133 

127

123 

115 

111 

109 

104

98 

95 

92 

95 

94

87 

82 

78 

75 

72 

71

Mean

38.7 

66.7 

63.6

203

40.9 

45.3 

65.6 

120 

370 

884 

714 

130 

54.7

217

Sept.

68 

66 

65 

65 

65

62 

60 

60 

59 

56

55 

54 

52 

52 

51

50 

50 

49 

48 

47

46 

45 

44 

43 

46

70 

59 

52 

51 

50

Runoff In 

acre-feet

2,380 

3,970 

3,910

147,000

2,510 

2,520 

4,030 

7,150 

22,750 

52,590 

43,900 

8,020 

3,250

157,000

Peak discharge (base. 1.100 see.-ft.). June 21 (7a.m.) 1,590 sec.-ft. ; July 1 (l a.m.) 1,760 sec.- 

ft.j July 5 (11:30 p.m.) 1,420 see.-ft.

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for Bear Creek 

near Wallowa and Hurricane Creek near Joseph.

b Stage-discharge relation affected by ice.
GRANDE RONDE RIVER BASIN 233 

Bear Creek near Wallowa, Oreg.

Location.--Water-stage recorder, lat. 45°32', long. 117°33', in NE^ sec. 34, T. 1 N., R. 

42 E., at bridge 3 miles southwest of Wallowa.

Drainage area.--68 square miles.

Records available.--April to September 1915, November 1931 to September 1950. April 1924 

to November 1931 (incomplete) at site 1 mile upstream above intakes of two irrigation 

ditches with a combined capacity of about 3 second-feet.

Average discharge.--21 years (1929-50), 108 second-feet.

Extremes.--Maximum discharge during year, 962 second-feet June 21 (gage height, 3.12 feet); 

minimum, 8 second-feet Oct. 3, 4.

1915, 1924-50: Maximum discharge, 1,620 second-feet Apr. 22, 1936 (gage 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 good except those for periods of ice effect or no gage-height record, 

which are poor. Small diversions above station for irrigation.

Rating tables, water year 1949-50, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to June 30 July 1 to Sept. 30

1.0 8 1.5 58 2.5 390 1.1 11 1.5 47 2.3 

1.1 14 1.7 94 2.1 540 1.2 17 1.7 78 2.5 

1.2 22 1.9 140 3.1 940 1.3 25 1.9 120 2.7 

1.3 31 2.1 ZOO 1.4 35 2.1 175 3.O 

1.4 43 2.3 280

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19

ZO

Zl 

Z2 

Z3 

24 

25

26 

Z7 

Z8 

Z9 

30 

31

Oct.

9 

9 

8 

9 

20

16 

16 

13 

13 

24

19 

17 

17 

17 

17

16 

16 

16 

16 

17

16 

15 

15 

14

14

14 

13 

20 

Z3 

20 

20

Nov.

20 

20 

20 

19 

18

17 

17 

18 

18 

18

17 

20 

18 

17 

17

16 

16 

*17 

bl6 

b!5

b!5 

b!4 

27 

120 

120

92 

158 

140

118 

111

Dec.

96 

88 

73 

72 

70

61 

56 

*50 

49 

44

b4Z 

b40 

b35 

b3Z 

b30

b28 

b26 

b25 

*bZ5 

b25

bZ5 

b25 

b25 

26 

b27

b30 

bZ9 

27 

27 

27 

bZ6

Jan.

26 

b25 

bZ5 

bZO 

b20

bZO 

b25 

bZ5 

b25 

bZ5

b25 

b25 

b25 

b25 

b25

bZ5 

bZ5 

Z3 

22 

29

b40 

b45 

b40 

b40 

a35

a35 

a30 

a30 

a30 

a25 

aZ5

Feb.

a25 

a25 

a25 

a30 

a35

a35 

a30 

a30 

a 30 

a35

a35 

a40 

a40 

a40 

a40

a40 

h39 

a38 

a37 

a36

a35 

a 35 

a35 

a50 

a!60

a!60 

a!50 

a!30

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Ma v

June 

July 

Augu 

Sept

Ha

lendar year 1949

ter year 1949-50 .......................

Mar.

a!25 

*125 

12 Z 

13Z 

149

149 

132 

120 

107 

96

86

81

77 

66 

61

63 

a80 

alOO 

a95 

a90

a85 

a85 

a80 

a80 

a.75

a75 

a70 

a70 

a70

a70 

a!50

Apr.

aZ30 

a210 

191 

a!70 

alSO

a!40 

a!30 

a!20 

a!20 

al!5

115 

122 

164 

170 

161

161 

176 

182 

182 

194

232

240 

216 

182 

164

149 

140 

130 

120 

113

Secondfoot-days

489 

1,269 

1,261

43,310

860 

1,440 

2,966 

4,889 

8,802 

14,795 

8,137 

984 

437

46,329

Peak discharge (base, 600 sec. -ft.) .--May 23 (l a.m.)

May

128 

128 

122 

120 

113

109 

104 

100 

98 

104

132 

204 

336 

404 

378

384 

384 

320 

268 

256

315 

425 

484 

418 

397

432 

439 

439 

411 

425 

425

Maximum

24 

158 

96

1,000

45 

160 

150 

240 

484 

852 

645 

58 

23

852

June

439 

453 

460 

508 

576

516 

397 

315 

272 

272

348 

418 

418 

439 

468

558 

576 

594 

650 

700

852 

70O 

484 

411 

342

315 

384 

500 

640 

790

July

645 

600 

552 

520 

513

471 

408 

384 

390 

378

300 

252 

240 

233 

212

196 

181 

175 

175 

154

140 

145 

132 

120 

109

102 

98 

94 

84 

70 

64

240 

330 

450 

690

Aug.

58 

53 

51 

51 

51

47 

43 

41 

40 

39

34 

33 

32 

31 

29

28 

27 

25 

24 

23

22 

22 

21 

23 

22

21 

20 

19 

19 

18 

17

Minimum Mean

8 15.8 

14 42.3 

25 40.7

8 119

20 27.7 

25 51.4 

61 95.7 

113 163 

98 284 

272 493 

64 262 

17 31.7 

12 14.6

8 127

Sept.

17 

16 

16 

16 

16

15

15 

15

14 

14

14 

14 

13 

13 

13

14 

14 

13 

13 

13

13 

12 

13 

13

14

23 

16 

15 

15 

15

Runoff In 

acre-feet

970 

2,520 

2,500

85,910

1,710 

2,860 

5,880 

9,700 

17,460 

29,350 

16,140 

1,950 

867

91,910

603 sec. -ft.; June 4 (11 p.m.) 6Z1 sec. -ft. j

June 21 (6 a.m.) 962 sec.-ft.; June 30 (10 p.m.) 951 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record) discharge computed on basis of records for Hurricane Creek near Joseph, 

Lostine River near Lostine, and Catherine Creek near Union.

b Stage-discharge relation affected by ice.

h Computed from staff-gage reading.
234 ASOTIN CREEK BASIN

Asotin Creek near Asotin, Wash.

Location.--Staff gage, lat. 46°20 I , long. 117°12', in sec. 20, T. 10 H., 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.

Hecords available.--August 1928 tu September 1950. March 1904 to November 1906 and August 

1910 to October 1911 at practically same site.

Average discharge.--22 years (1928-50), 62.7 second-feet.

Extremes. --Maximum discharge observed during year, 277 second-feet Feb. 27; maximum ga£"e 

height, 4.32 feet Feb. 4 (backwater from ice); minimum discharge not determined, probably occurred sometime during a period of ice effect.

1904-6, 1910-11, 1923-50: Maximum discharge observed, 1,130 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 rapidly changing stage, backwater, or 

shifting control, which are fair, and those for periods of ice effect, which are poor. 

Gage read twice daily. Large part of low flow diverted for irrigation. N: ren'latiuii.

Cooperation.--Gage-height record furnished by Washington Water Power Co.

Discharge, in second-feet, water year October 1943 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2S 

29 

30 

31

Oct.

34 

34 

31 

31 

39

36

36 

34 

34 

36

34 

34 

54 

33 

54

54 

34 

36 

34 

34

34

34 

34 

35

34 

34 

36

40

35

Nov.

36 

36 

34 

34

35 

36 

36 

59

5K 

37 

56 

36 

36

36

36

36

36

37 

47 

42

41 

61 

54 

47 

*48

Dec.

45 

44 

41 

41

41 

37

36

36

36 

36

36 

36 

36 

36 

36

36 

36 

33 

36

36 

36 

36 

36 

36 

36

Jan.

34 

32

31 

31

37 

34

34

33

31 

31 

£9 

28 

23

27 

27 

*27 

27 

32

56 

119 

107 

34 

40

33 

30 

28 

27 

27 

26

Feb.

25 

25 

26

35 

55

51 

42 

40

53 

40 

47 

51 

73

35 

89 

35

82 

78

66 

64 

119 

241

265 

265 

*21S

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1949

ter year 1949-50 .......................

Mar.

172 

152 

142 

152 

172

183 

162

152 

132

123

9c 

96 

91 

84

116

172

152

132

123 

123 

114

109 

105 

98 

91 

69 

94

Apr.

152 

241 

218 

172 

152

142 

142 

132

13E 

132

123 

152 

183 

183 

172

133 

183 

17E 

162

133 

153 

134 

152 

142

132 

132

119 

112 

109

Secondfoot-days

1,073 

1,165

1,158

29,883

1,201 

2,325 

3,918 

4,728 

5,467 

5,631 

2,170 

1,305 

1,097

31,238

May

116

123 

123 

132 

1E1

119 

116 

112 

11C 

114

13E 

172 

218

253 

255

241 

241 

213 

194 

17E

218 

241 

218 

194

206 

194

183 

172 

172

Maximum

40 

45

373

119 

265 

183 

241 

253 

241 

118 

49 

41

265

June

183 

183

133 

194 

194

206 

194 

172 

162 

152

152 

194 

206 

229 

229

218 

229 

241 

229 

229

241

218 

206 

163

142 

132

123

123

July

113 

110 

105 

101

91 

37 

82 

50 

77

37

66

64 

61 

61 

62 

61

53 

55 

54

52

51

49 

49 

52 

52 

49 

49

Minimum

31 

34

25

26 

25 

84 

109 

llu 

123 

49 

36 

34

25

Aug.

47 

45 

44 

47 

49

48 

45 

47 

45 

49

44

41 

41 

41 

41

41 

40 

41 

39 

37

39

42 

44

39 

39 

39 

39 

37 

36

Mean

34.6 

38.8 

37.4

61.9

38.7 

83.H 

126 

158 

176 

138 

70. u 

42.1

85.6

Sept.

36 

36

39 

37

36 

37 

36

36

36 

37

37 

36

36 

36

35

35 

34 

34 

36

41 

39 

39 

39 

39

acre-fee?

E,130 

2,310 

2,300

59,230

2 . 380 

4,610 

7,770 

9 , 380 

10,840 

11,170

4 , 36 0 

Z.59U 

2,180

61,96u

25 to Feb. 7.
3elway River near Lowell, Idaho

Drainage area.--1,910 square miles.

Records available.--April 1811 to September 1912 

ords only), October 1929 to September 1950.

heights or fragmentary discharge recExtremes.--Maximum discharge during year, 32,500 second-feet June 17 (gage height, 12.82 

feet); minimum, 53.9 second-feet Oct. 5 {gage height, 2.83 feet).

1929-50: Maximum discharge, 48,900 second-feet May 29, 1943 (gage height, 16.04 

feet); minimum, probably less than 100 second-feet Jan. 3, 1937, durint oerloi of ice 

effect.

Remarks.--Records excellent except those for period of ice effect or no gage-height record

Discharge, in second-feet, water year October 1:149 to September 1950

.) 20,300 sec.-ft.; May 23 (4 a.m.)

:.-ft., May 28 

32,500 cec.-ft.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected "by lee.

Note.--Ho gage-height record Oct. 30 to Nov. 15; discharge 

and records for Clear-water River at Kamlah and South Pork Cle

jomputed on ba 

arwater River

:ls of weather records 

lear Qrangevllle.

253646 O - 53 - 17
CLEARWATER RIVER BASIN

Clearwater River at Kamiah, Idaho

Location.--Water-stage recorder, lat. 46°14', long. 116 0 01', in sec 1, T. 33 N., R. 3_E. ,

Drainage area. --4 ,850 square miles.

Records available . --August 1910 to Septembei 19 r,0.

Average discharge .--40 years, 8,058 second-feet.

Extremes. Maximum discharge during year, 62,600 second-feet June IV (gage height, 15.08

 feet) ; minimum, 1,180 second-feet Oct. 4, but may have been lower during period of ice

effect; minimum gage height, 3.48 feet Sept. 25.

1910-50: Maximum discharge, 99,000 second-feet May 29, 1948 (gage height, 19.22

feet); minimum, probably Isss than 200 second-feet Jan. 8, 1937, during period of ice

Remarks . Records excellent except those below 4,000 second-feet, which are good, and 

 tnose for periods of ice effect or no gage-height record, which are fair. Some diurnal 

regulation at low stages caused by power plant on South Fork.

Discharge, in second-feet, water year October 1949 to September-1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,550 

1,600 

1,420 

1,260 

1,340

2,240 

2,220 

2,010 

1,820 

1,990

2,200 

2,070 

2,220 

1,990 

1,740

1,700 

1,730 

1,690 

1,630 

1,520

1,480 

1,550 

1,530 

1,530 

1,550

1,570 

1,600 

1,690 

3,680 

3,640 

2,670

Nov.

2,320 

2,170 

2,070 

1,960 

1,930

1,880 

1,840 

1,850 

E,030 

2,060

2,090 

2,200 

2,260 

2,190 

2,070

*1,990 

1,910 

1,880 

1,790 

1,720

1,720 

1,600 

1,700 

4,370 

8,210

6,680 

7,350 

12,400 

8,570 

7,290

Dec.

 6,700 

6,020 

5,650 

4,890 

4,530

4,630 

4,210 

3,900 

3,750 

3,530

2,920 

2,410 

3,050 

3,310 

2,900

,990 

,090 

,960 

,920 

,620

,490 

,620 

,750 

,900 

,580

,510 

,730 

,710 

,730 

,670 

2,460

Jan.

2,460 

2,410 

2,070 

1,690 

1,550

1,630 

2,010 

*2,480 

2,460 

2,340

2,270 

2,190 

1,960 

1,700 

1,460

1,510 

1,720 

1,800 

1,960 

2,580

4,920 

8,810 

8,700 

6,470 

4,770

3,830 

3,920 

3,660 

2,990 

2,600 

2,900

Month

Octo 

Nove 

Deoe

Ca

Jami 

Febr 

Marc 

Apr! 

Hay 

June 

July 

Augu 

Sept

Ha

mber ......................

lendar year 1949 

ary

1 .........................

ember .....................

ter year 1949-50 .......

Feb.

3,200 

3,400 

3,900 

4,000 

4,000

3,800 

3,500 

3,000 

2,700 

2,600

2,500 

2,400 

2,400 

2,400 

2,700

2,900 

3,100 

3,200 

3,100 

3,100

3,000 

2,900 

3,000 

8,470 

16,200

13,900 

14,400 

11,600

Secondfoot-days

58,430 

100,100 

106,130

3,423,580

93,820 

135,370 

231,070 

446,800 

841,300 

1,166,600 

388,270 

100,260 

48,590

3,716,740

Mar.

9,210 

*8,020 

7,410 

7,960 

8,570

10,100 

9,150 

8,280 

7,650 

7,120

6,470 

5,700 

5,600 

5,420 

5,230

5,180 

6,700 

10,200 

9,490 

9,010

8,410 

8,470 

8,210 

7,770 

7,560

7,120 

6,730 

6,340 

5,880 

5,750 

6,360

Maximum

3,680 

12,400 

6,700

72,300

8,810 

16,200 

10,200 

21,700 

42,000 

55,900 

32,000 

5,820 

2,860

55,900

Apr.

13,800 

21 , 700 

'17,100 

13,700 

12,100

11,400 

11,200 

11,400 

11,900 

11,400

11,500 

12,600 

15,100 

17,200 

15,400

14,200 

16,500 

17,100 

16,400 

16,400

18,200 

21,200 

19,800 

17,200 

15,600

14,300 

14,200 

13,600 

12,400 

12,200

Hay

13,100 

14,200 

13,400 

12,600 

12,500

11,800 

11,100 

11,300 

12,100 

12,500

14,400 

19,300 

27,200 

34,900 

40,400

40,900 

41,300 

36,200 

30,600 

26,000

25, 400 

32,000 

41,500 

38,700 

35,600

36,100 

40 , 200 

42 , 000 

39/800 

37,200 

37,000

Minimum

1,260 

1,600 

2,410

990

1,460 

2,400 

5,180 

11,200 

11,100 

27,300 

4,920 

1,790 

1,290

1,260

Peak discharge (base, 28,200 sec. -ft.). May 17 (6:30 a.m.

June

37,800 

36,600 

35,000 

37,600 

41,400

43,400 

41,700 

36,600 

31,500 

29,900

33,000 

36,900 

43,000 

45,400 

43,400

48,600 

55,900 

50, 200 

46,600 

45,200

49,000 

46,400 

39,400 

34,600 

31,200

27,800 

27,300 

28,800 

30, 700 

31,700

Mean

1,885 

3,337 

3,424

9,380

3,026 

4,835 

7,454 

14,890 

27,140 

38,890 

12,520 

3,234 

1,620

10,180

July

32,000 

30,100 

27,100 

25,200 

23,500

21,800 

20,100 

18,000 

16,000 

15,500

14,000 

12,000

10,800 

9,940 

9,420

8,810 

8,150 

7,650 

7,410 

7,680

6,920 

6; 390 

6,050 

5,720 

5,420

5,130 

4,920 

4,940 

5,250 

6,390 

5,980

Per 

square 

mile

0.389 

.688 

.706

1.93

.624 

.997 

1.54 

3.07 

5.60 

8.02 

2.58 

.667 

.334

2.10

Aug.

4,990 

4,510 

4,190 

4,010 

4,350

5,820 

5,780 

4,600 

4,120 

3,970

3,900 

3,600 

3,470 

3,250 

3,090

2,940 

2,800 

2,690 

2-, 550 

2,420

2,340 

2,260 

2,170 

2,200 

2,290

2,270 

2,120 

1,990 

1,930 

1,850 

1,790

Sept.

1,730 

1,660 

1,620 

1,550

1,520

1,500 

1,480 

1,470 

1,470 

1,550

1,440 

1,390 

1,360 

1,690 

1,700

1,620 

1,570 

1,550 

1,480 

1,500

1,460 

1,380 

1,330 

1,290 

1,290

1,910 

2,860 

2,460 

1,960 

1,780

Runoff

Inches

0.45 

.77 

.81

26.26

.72 

1.04 

1.77 

3.43 

6.45 

8.95 

2.98 

.77 

.37

28.51

43,400 sec. -ft.; June 6 (9

Acre-feet

115,900 

198,500 

210,500

6,790,000

186,100 

268,500 

458,300 

886,200 

1,669,000 

2,314,000 

770,100 

198,900 

96,380

7,372,000

a.m. )

45,000 sec.-ft.; June 17 (9:30 a.m.) 62,600 sec.-ft.

* Winter discharge measurement made on this day.

Mote.--Stage-discharge relation affected by ice Jan. 30 to Feb. 23. No gage-height record Jan. 31 

to Feb. 13; discharge computed on basis of weather records and records for other stations in Clearwater River Basin and nearbv streams.
CLEARWATER RIVER BASIN 237

Clearwater River at Spalding, Idaho

Location.--Water-stage recorder, lat. 46°25', long. 116°51', In lot 22, sec. 22, T. 36 N. , 

 K. 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 1950.

Average discharge. 24 years, 14,730 second-feet.

Extremes.--Maximum discharge during year, 100,700 second-feet June 17 (gage height, 17.90 

reet:); minimum daily, 2,400 second-feet Jan. 5; minimum gage height, 2.88 feet Jan. 5. 

1926-50: Maximum discharge, 177",000 second-feet May 29, 1948; 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 except those for periods of ice effect, which are fair. Small 

diversions from tributaries; slight diurnal fluctuation at times caused by power plant 

on South Fork.

Discharge, in second-feet, water year October 1949 to September.1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2,560

2,980

2,840

2,560

2,530

3,960

4,870

4,240

3,740

3,510

4,260

4,130

4,180

3,930

3,450

3,150

3,130

3,130

3,010

2,940

2,720

2,790

2,830

2,810

2,830

2,840

2,880

2,960

5; 030

7,080

5,060

Nov.

4,200

3,810

3,620

3,450

3,330

3,270

3,210

3,170

3,330

3,830

3,930

4,200

5,040

4,970

4,380

4,000

3,760

*3,600

3,470

3,330

3,270

3,170

2,990

4,520

11,900

12,300

11,700

18,700

15,500

12,700

-

Dec.

12,300

10,700

10,200

9,020

7,870

7,900

7,530

6,640

6,440

6,100

5,320

4,220

4,510

5,600

5,190

4,920

5,190

5,190

5,040

4,610

4,380

4,470

4,700

5,190

4,990

4,420

4,660

4,820

4,990

5,060

4,780

Jan.

4,510

4, -350

3,700

2,9OO

2,400

*2,800

3,200

4,000

4,200

4,000

3,800

3,700

3,300

2,900

2,400

2,500

2,600

2,700

3,500

5,500

8,000

15,000

20,200

16,400

11,700

8,500

7,500

7,000

6,200

5,200

5,400

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 ..........

Feb.

5,800

6,*Cv

6,800

7,000

7,000

6,600

6,300

6,000

5,600

5,000

4,800

4,600

4,600

5,000

6,000

7,000

7,600

8,500

9,200

9,500

9,300

9,000

9,500

16,500

41,600

38,700

*36,800

29,900

_

_

-

Secondfoot-days

108,930

172,650

186,950

6,352,750

180,060

320,600

635,200

1,047,400

1,595,600

1,988,900

£75,810

191,570

103,230

7,206,900

Mar.

?3,500

19,800

18,600

21,600

26,OOO

29,000

25,000

21,800

19,700

18, 100

16,000

14,000

13,400

12,700

12,100

12,500

22,400

34, 600

31,400

28,300

24,800

24,400

23,300

21,700

20, 700

19,100

18,100

16,700

15,200

14,700

16,000

Maximum

7,080

18,700

12 , 300

117,000

20,200

41,600

34,600

63,900

78,100

91,900

51,000

10,100

5,880

91,900

Apr.

37,100

63,900

44,800

33.3OO

29,500

27,800

26,300

26,900

28,400

27,400

27,000

29,600

35, 100

46,400

39,300

34, 100

39,100

41,600

38,500

37,000

39 , 900

45,400

42,500

36,100

32,200

29,500

28,800

28,400

26,100

25,400

May

27 , 400

29,900

39 , 800

27,500

28,600

27,900

25,200

24,900

27,000

28,500

32,700

41,800

55,100

69,000

78,100

77,900

77,800

68,900

57,400

48,800

45,800

53,600

71,300

69,900

64,600

64, 100

69,900

73,100

70,200

64,900

64,000

Minimum

2,530

2,990

4,220

2,150

2,400

4,600

12,100

25,400

24,900

46,100

9,500

3,850

2,770

2,400

June

65,100

64,100

62,2OO

64,800

70,400

74,000

70, 900

64,600

55,200

51,000

54,600

62 , 700

71,100

85 , 400

78,200

81,300

91,900

85,000

77,700

74,900

78,700

79,200

87,100

58,600

57,600

49,900

46, 100

46,800

49,100

50,700

Mean

3,514

5,755

6,031

17,405

5,808

11,450

20,490

34,910

51,470

66,300

21,800

6,180

3,441

19,740

July

51,000

48,600

44,000

40,800

38,600

35,600

33,000

30,000

27,100

26,200

24,900

21,700

19,600

18,200

17,300

16,400

15,400

14,600

14,200

15,100

13,700

12,600

11,900

11,300

10,800

10,200

9,750

9,500

9,960

11,600

12,200

Per

square 

mile

0.367

.601

.630

1.82

.607

1.20

2.14

3.65

5.38

6.93

2.28

.646

.360

2.06

Aug.

9,960

8,

8,

7,

520

290

340

7,870

8,990

10,

8,

7,

100

490

S20

7,170

6,990

6,

6,

6,

S10

380

180

5,930

5,600

5,

5,

5,

370

190

020

4,820

4,680

4,

4,

4,

4,

4,

4,

4,

4,

3,

560

440

510

700

730

490

220

090

960

3,850

Sept.

3,720

3, -620

3,530

3,430

3,390

3,390

3,290

3,230

3,210

3,210

3,150

3,050

2,980

3,130

5,600

3,390

3,350

3,290

3,170

3,150

3,090

3,010

2,900

2,830

2, 110

3,070

5,880

5,420

4,220

3,760

-

Runoff

Inches

0.42

.67

.73

24.69

.70

1.25

2.47

4.07

6.20

7.73

2.63

.74

.40

28.01

Acre feet

216,100

342,400

370,800

12,600,000

357,100

635,900

1,260,000

2,077,000

3,165,000

3,945,000

1,340,000

380,000

204, 800

14,290,000

Peak discharge (baae. 65.000 sec.-ft.) . Apr. 2 (5 a.m.) 70,000 sec.-ft.; May 15 (l p.m.) 82,300 

sec.-ft.; May 23 (l p.m.) 77,900 sec.-ft.; June 17 (2:30 p.m.) 100,700 sec.-ft. 

* Winter discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Jan. 3-22, Jan. 26 to Feb. 24.
CLEARWATER RIVER BASIN

Lochsa River near Lowell, Idaho

Drainage area. 1,180 square miles.

Records available.--November 1910 to August 1912, October 1929 to September 1950.

Average discharge .--21 years (iaric>-50) , 2,650 second-feet.

Extremes.--Maximum discharge during year, 26,200 second-feet June 17 (gage height, 11.51 

reet) ; minimum, 403 second-feet Oct 4 (gage height, 1.79 feet).

1929-50: 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 thar 

100 second-feet Jan. 8, 1937, during period of ice effect.

Remarks.--Records excellent except those for periods of ice effect, which are fair. No 

diversion.

Discharge, in second feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

520

488

452

417

616

837

765

680

616

783

747

783

792

672

600

600

600

584

568

496

520

544

528

520

536

544

544

831

1,560

1,190

930

Nov.

828

774

738

704

688

664

656

672

720

704

720

819

810

774

729

696

680

656

616

640

600

536

855

2,070

2,610

2,260

3,330

3,870

2,850

2,610

-

Dec.

2,320

2,140

1,960

1,720

1,650

1,620

1,450

1,370

1,300

1,220

980

970

1,230

1,180

1,080

1,090

1,090

1,070

1,030

980

960

960

1,000

1,030

930

960

960

960

960

940

882

Jan.

864

855

700

640

620

660

750

870

*920

840

800

780

740

700

600

650

740

820

950

1,150

1,900

3,200

2,800

2,100

1,600

1,500

1,600

1,500

1,250

1,250

1,190

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January .......................

February ......................

March .........................

April .........................

May ...........................

June ..........................

July .................... .....

August .............. .........

September ............. .......

Water year 1949 50 ..........

Feb.

,370

,300

,290

,500

,450

,390

,290

,050

,000

960

950

930

920

920

950

,050

,140

,110

,080

,030

,010

,020

,160

2,600

4,010

3,720

3,680

3,050

_

_

-

Secondfoot-days

20,863

35,879

37,992

1,193,200

35,639

42,930

74,740

153,460

310,590

448,600

145,990

37,518

17,952

1,362,153

liar.

2,600

2,320

*2,240

2,480

2,710

3,030

2,760

2,540

2,400

2,260

2,000

1,820

1,820

1,740

1,680

1,660

2,600

3,510

3,210

2,980

2,810

2,850

2,680

2,550

2,490

2,340

2,220

2,090

1,950

1,900

2,500

Maximum

1,560

3,870

2,320

27,600

3,200

4,010

3,510

7,490

15,900

23,600

11,900

2,200

980

23,600

Apr.

6,760

7,490

5,530

4,470

4,050

3,890

3,750

3,820

3,890

3,800

3,980

4,410

5,070

5,150

4,730

4,600

5,720

5,850

5,680

5,800

6,680

7,460

6,720

5,780

5,270

4,870

4,870

4,600

4,360

4,410

-

May

4,830

4,990

4,640

4,370

4,360

4,090

3,920

4,090

4,390

4,580

5,680

7,690

10,500

13,200

14,800

14,900

14,700

12,400

10,300

8,890

9,270

12,600

15,900

14,500

13,500

14,000

15,600

15,700

14,700

13,700

13,800

Minimum

417

536

882

333

600

920

1,660

3,750

3,920

10,200

1,860

672

466

417

June

14,200

13,800

13,500

14,700

16,200

15,900

15,400

13,100

11,200

11,000

12,700

14,000

17,600

18,300

17,000

19,700

23,600

19,900

18,200

17,800

19,500

17,600

15,000

12,800

11,400

10,200

10,200

10,700

11,400

12,000

-

Mean

673

1,196

1,226

3,269

1,150

1,533

2,411

5,115

10,020

14,950

4,709

1,210

598

3,732

July

11,900

11,000

9,950

9,320

8,700

8,020

7,440

6,600

5,910

5,830

5,170

4,500

4,070

3,840

3,630

3,390

3,140

2,970

2,980

3,010

2,680

2,480

2,320

2,190

2,070

1,950

1,860

1,960

2,160

2,730

2,220

Per 

square 

mile

0.570

1.01

1.04

2.77

.975

1.30

2.04

8*49 4 33

12!?

3.99

1.03

.507

3.16

Aug.

1,890

1,

1,

1,

1,

690

560

510

640

2,200

2,

1,

1,

000

650

500

1,520

1,440

1,

1,

1,

370

300

220

1,160

1,090

1,

1,

050

010

960

930

891

855

837

882

882

837

783

756

729

704

672

Sept.

648

624

608

584

568

560

552

544

560

544

512

496

560

640

608

592

592

560

544

528

520

504

480

466

480

980

970

792

696

640

-

Runoff

Inches

0.66

1.13

1.20

37.61

1.12

1.35

2.36

4.84

9.79

14.14

4.60

1.18

.57

42.94

Acre-feet

41,380

71,160

75,360

2,366,000

70,690

85,150

148,200

304,400

616,000

889,800

289,600

74,420

35,610

2,702,000

(6 a.m.) 17,000
CLEARWATER RIVER BASIM 239

South Pork Clearwater River near Elk City, Idaho

Location.--Water-stage recorder, lat. 45°49', long. 115°32', in NE£ sec. 25, T. C9 N., R. 

7 E., just upstream from 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 1950.

Extremes.--Maximum discharge during year, 1,720 second-feet May 16 (gage height, 5.39 

feet); minimum, 30 second-feet Nov. 18 (gage height, 1.43 feet).

1944-50: Maximum discharge observed, 3,700 second-feet May 29, 1948 (gage height, 

IS.00 feet, site arid datum then in use); minimum daily, 17 second-feet Dec. 11, 1944.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are poor. Mo diversion or regulation above station except for mining operations.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct

82

60

46

42

54

87

71

68

63

82

76

77

77

60

54

53

48

51

42

45

50

47

49

49

52

50

52

58

106

71

56

Nov.

56

50

47

47

45

44

43

54

60

64

59

60

61

60

*54

54

47

42

40

38

40

50

90

266

308

176

248

295

171

155

-

Dec

143

126

88

76

108

97

85

82

73

71

62

52

66

68

65

70

63

70

65

55

60

65

65

65

55

60

62

64

65

60

55

Jan

60

55

45

45

43

50

60

60

55

55

50

*45

45

40

35

40

43

43

45

55

70

105

100

90

60

60

65

60

55

50

45

Month

October ............... . . .

November ...........

December . . . ........ . .

Calendar year 1949 ....... .

January ... . . . ... ......

February . .... . ......

March . ......... . ...

April ...... . ... . .

May ... ....... . . .........

June . . ....... ...... . . .

July . . ........ . .......

August .... ...... . . .......

September . . . ......

Water year 1949-50 . . . . ...

Feb.

50

50

60

80

80

65

60

58

55

50

48

45

43

45

50

70

75

70

75

95

80

60

60

70

160

175

200

180

_

_

"

Second 

foot-days

1,878

2,824

2,266

100,857

1,729

2,2O9

5,125

17,518

- 32,550

24,972

5,870

2,424

1,428

100,793

Mar

155

135

120

130

150

165

155

150

145

140

125

110

120

120

115

120

222

288

251

220

220

217

193

186

186

171

166

155

*143

162

190

Maximum

106

3O8

143

1,990

105

200

288

1 , 02O

1,630

1,070

381

222

106

1,630

Apr.

422

566

418

359

352

349

366

384

396

381

434

552

617

608

521

539

695

661

690

785

941

1,020

872

750

725

680

695

608

552

58O

-

May

661

745

646

593

589

552

512

580

651

695

806

1,080

1,330

1,530

1,630

1,620

1,590

1,420

1,250

1,120

1,100

1,220

1,310

1,250

1,170

1,160

1,210

1,210

1,160

1,120

1,040

Minimum

42

38

52

29

35

43

110

349

512

415

103

47

35

35

June

1,020

989

947

935

929

965

1,050

959

878

795

806

866

1,070

989

935

965

977

900

878

822

900

795

745

720

675

580

534

487

446

415

-

Mean

60.6

94.1

73.1

276

55. B

78.9

165

584

1,050

832

189

78.2

47.6

276

July

381

349

332

308

288

273

254

237

222

225

220

198

183

180

166

157

148

146

148

148

135

126

120

114

108

106

104

103

124

143

124

Per

square 

mile

0.232

.361

.280

1.06

.214

.302

.632

2.24

4.02

3 = 19

.724

.300

.182

1.06

Aug.

104

94

87

94

162

222

135

106

103

94

82

76

71

68

64

61

59

57

52

51

49

49

49

56

63

60

56

53

51

49

47 

-

Sept.

45

43

43

41

40

38

36

36

40

40

38

35

38

52

51

49

43

46

47

46

43

41

41

40

40

92

106

63

56

53

-

Runoff

Inches Acre-feet

0.27 3,720

.40 5,600

.32 4,490

14.38 200,000

.25 3,430

.31 4,380

.73 10,170

2.50 34,750

4.64 65,560

3.56 49,530

.84 11,640

.35 4,810

.20 2,830

14.37 199,900

Peak discharge (base, 1,500 sec.-ft.).--May 16 (3 a.m.) 1,720 sec.-ft.

* Winter discharge measurement made on this day.

Mote.--Stage-discharge relation affected ty ice Nov. 19-23, Dec. 10 to Mar. 16 (no gage-height 

record Jan. 31 to Mar. 2; discharge compute! on tasis of 1 discharge measurement, weather records 

and records for station near Qrangeville).
240 CLEARWATER RIVER BASIN

South Fork Clearwater River near Grangeville, Idaho

Location.--Water-stage recorder, lat. 45°55', long. 116°01', SE^NW^ sec. 30, T. 30 N., R. 

4 fi., just downstream from powerhouse of Washington Water Power Co. and 6 miles southeast of Grangeville.

Drainage area.--865 square miles.

Records available.--November 1910 to September 1916, April 1923 to September 1950.

Average discharge. 31 years (1912-16, 1923-50), 841 second-feet.

Extremes.--Maximum discharge during year, 5,420 second-feet May 16 (gage height, 8.51 feet); 

minimum, 13 second-feet Oct. 18 (gage height, 8.00 feet); minimum daily, 148 second-feet 

Nov. 20.

1910-16, 1923-50: Maximum discharge observed, 12,600 second-feet May 29, 1948 (gage 

height, 12.50 feet); no flow part of day Aug. 27, 1947; minimum daily, 41 second-feet 

Nov. 22, 1931.

Remarks.--Records good. Considerable diurnal fluctuation at low stages caused by power 

plant just above station. No diversion for irrigation.

Cooperation.--Water-stage recorder inspected by Washington Water Power Co. in connection 

with a federal Power Commission project.

Revisions.--W 633: Drainage area.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

294 

256 

185 

171 

Z21

305 

28G 

294 

260 

305

290 

290 

290 

246 

232

22 6 

213 

190 

187 

179

193 

195

195 

204 

198

210 

216 

226 

408 

330 

250

Nov.

229

216 

211 

195 

198

190 

181 

193 

232 

239

232 

220 

236 

232 

226

207 

210 

184 

176 

148

152 

154 

273 

819 

1,020

637 

835 

1,140 

688 

586

Dec.

532 

478 

403 

305 

356

375 

322 

326 

282 

264

193 

179 

253 

260 

242

271 

260 

264 

253 

216

239

256 

250 

253 

213

242 

250 

250 

256 

239 

226

Jan.

250 

226 

184 

184 

173

220 

250 

253 

232 

232

226 

216 

*213 

198 

b!70

b!80 

190 

193 

207 

253

347 

489 

478 

422 

294

294 

309 

271 

239 

220 

201

Month

Ootc 

Nove 

Dece

Ca

Janu 

Febi 

Hare 

Apri 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194S 

ary

st ......... ......

ember . .

ter year 1949-50 ..........

Feb.

232 

229

278 

375 

379

309 

275 

264 

253 

236

229

204 

201 

207 

239

343 

375 

339 

370 

458

393

286 

286 

347 

753

839 

996 

852

Secondfoot-days

7,545 

10,459 

8,708

348,276

7,814 

10,547 

19,615 

52,120 

106,920 

107 , 450 

34,745 

10,805 

6,444

383,172

Mar.

717 

642 

586 

642 

700

783 

723 

665 

631 

581

532 

418 

468 

473 

458

468 

653 

852 

820 

747

729 

741 

711 

700 

682

631 

598 

564 

521 

570 

609

Maximum

408 

1,140 

532

6,000

489 

996

852 

2,790 

5,220 

4,150 

2,560 

906 

466

5,220

Apr.

1,150 

1,720 

1,440 

1,180 

1,160

1,140 

1,170 

1,240 

1,270 

1,200

1,270 

1,520 

1,740 

1,860 

1,740

1,760 

2,140 

2,060 

2,020 

2,140

2,410 

2,790 

2,530 

2,210 

2,070

1,960 

2,030 

1,860 

1,680 

1,660

May

1,840 

2,160 

1,990 

1,880 

1,860

1,790 

1,680 

1,760 

1,900 

2,020

2,270 

2,990 

3,930 

4,870 

5,090

5,220 

5,150 

4,510 

3,920 

3,470

3,600 

4,200 

4,650 

4,380 

4,070

4,150 

4,430 

4,470 

4,310 

4,260 

4,100

Minimum

171 

148 

179

111

170 

201 

418 

1,140 

1,680 

2,650 

521 

199 

166

148

June

4,060 

3,930 

3,840 

3,890 

3,990

3,940 

3,890 

3,610 

3,350 

3,170

3,270 

3,610 

3,930 

3,970 

3,900

4,080 

4,150 

3,990 

3,880 

3,8OO

4,150 

3,800 

3,400 

3,290 

3,120

2,760 

2,680 

2,680 

2,670 

2,650

Mean

243 

349

281

954

252 

377 

633 

1,737 

3,449 

3,582 

1,121 

349 

215

1,050

July

2,560 

2,390 

2,210 

2.O7O 

1,940

1,810 

1,710 

1,560 

1,450 

1,420

1,290 

1,140 

1,040 

960 

899

860 

808 

765 

777 

753

689 

638 

605 

573 

546

526 

521 

526 

568 

589 

552

Per 

square 

mile

0.281 

.403 

.325

1.10

.291 

.436 

.732 

2.01 

3.99 

4.14 

1.30 

.403 

.249

1.21

Aug.

495 

446 

403 

385

557

906 

594 

480 

427 

408

376 

354 

341 

336 

311

299 

284

272 

257 

254

246 

232 

232 

239 

291

276 

246 

225 

212 

222 

199

Sept.

196 

193 

178 

181 

178

172 

178 

175 

2O2 

193

193 

167 

172 

232 

250

209 

222 

209 

209 

209

193 

175 

175 

166 

172

372 

466 

303 

254 

250

Runoff

Inches

0.32 

.45 

.37

14.97

.34 

.45 

.84 

2.24 

4.60 

4.62 

1.49 

.46 

.28

16.46

Peak discharge (base, 3,200 sec. -ft.) .--May 16 (12 p.m.) 5,420 sec. -ft. j May 23 (l a.m

Acre-feet

14,970 

20,750 

17,270

690,800

15,500 

20,920 

38,910 

103,400 

212,100 

213,100 

68,920 

21,430 

12,780

760,000

) 4,780

ct;. j. i, > ii uiie j. / \ o : J.O ei.iH.j 4,3ru Beu.-iL.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
CLEARWATER RIVKR BASIN 241

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 

K., 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 1950.

Extremes.--Maximum discharge during year, 17,500 second-feet June 16 (gage height, 8.48 

feet); minimum, 530 second-feet Oct. 19 (gage height, 2.60 feet).

1944-50: Maximum discharge, 27,400 second-feet May 29, 1948 (gage height, 11.13 

feet); 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 fair. No diversion or regulation above station.

Cooperation. Water-stage recorder inspected by U. S. Forest Service ranger at Bungalow 

ranger station.

Discharge, in second-feet, water year October 1949 to September

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

651 

597 

562 

554 

925

1,000 

826 

740 

690 

947

848 

936 

782 

700 

670

700 

642 

670 

588 

615

624 

606 

624 

624 

633

624

624 

892 

1,240 

859 

760

Nov.

720

690 

67O 

.651 

651

633 

624 

651 

690 

700

700 

925 

958 

848 

771

720 

*700 

670 

660 

660

606 

579 

826 

1,420 

1,710

1,620 

2,690 

2,900 

2,300 

2,100

Dec.

2,100 

1,800 

1,800 

1,600 

1,400

1,400 

1,300 

1,100 

1,100 

1,100

900 

800 

900 

1,100

1,000

920 

960 

960 

920 

840

840 

880 

880 

1,000 

940

800 

880 

920 

1,000 

980 

900

Jan.

870 

840 

740 

640 

560

600 

650 

800 

840 

830

800 

750 

700 

620 

580

600 

650 

700 

800 

1,000

2,000 

3,000 

3,700 

2,000 

1,600

1,400 

1,450 

1,300 

1,100 

950 

950

Month

Oote 

Nove 

Deoe

Ca

Janu 

Febi 

Marc 

Apr! 

May 

June 

Jill; 

Augt 

Sept

We

mber ......................

lendar year 194 

&ry

 uary . .

ember .....................

ter year 1949-50 ..........

Feb.

1,000 

1,100 

1,200 

1,300 

1,280

1,200 

1,100 

1,050

1,000

1,000

950 

920 

920

1,000 

1,100

1,250 

1,400 

1,430 

1,270 

1,200

1,140 

1,130 

1,190 

2,510 

3,530

3,210 

3,120 

2,510

Secondfoot-days

22,753

31,043 

34,020

1,053,491

34,020 

41,010 

65,390 

161,070 

306,250 

374,610 

120,770 

37,139 

23,595

1,251,670

Mar.

*2,120 

1,940 

1,890 

2,370 

2,900

2,860 

2,530 

2,320 

2,120 

1,960

1,680 

1,680 

1,620 

1,550 

1,490

1,500 

2,510 

2,990 

2,690 

2,430

2,390 

2,350 

2,180 

2,120 

2,070

1,960 

1,870 

1,730 

1,630 

1,680 

2,260

Maximum

1,240 

2,900 

2.10C

21,80C

3.70C 

3,530 

2,990 

8,280 

14,300 

15,800 

8,900 

1,750 

1,430

15,800

Apr.

8,280 

7,910 

5,360 

4,230 

3,900

3,870 

3,720 

3,920 

3,920 

3,720

3,900 

4,500 

5,420 

5,420 

4,870

4,840 

6,710 

6,580 

6,300 

6,520

7,320 

7,880 

6,840 

5,780 

5,330

4,900 

5,010 

4,780 

4,500 

4,840

May

5,450 

5,420 

4,900 

4,640 

4,560

4,260 

4,260 

4,700 

5,220 

5,720

7,550 

9,880 

12,100 

13,900 

14 , 300

14,200 

13,700 

11,600 

9,840 

8,760

9,390 

12,200 

13,900 

13,000 

12,800

13,200 

14,100 

14,000 

13,200 

12,700 

12,800

Minimum

554 

579 

800

360

560 

920 

1,490 

3,720 

4,260 

8,560 

1,850 

848 

651

554

June

13 , 100 

12,900 

13 , 000 

13,700 

14,600

14,000 

13,300 

11,800 

10,700 

10,700

12,200 

12 , 700 

15,400 

15,200 

14,500

15,800 

15,800 

14,400 

13,700 

13,700

14,400 

13,200 

11,700 

10,500 

9,600

8,700 

8,560 

8,700 

8,970 

9,080

Mean

734 

1,035 

1,097

2,886

1,097 

1,465 

2,109 

5,369 

9,879 

12,490 

3,896 

1,198 

786

3,430

July

8,900 

8,290 

7,620 

7,160 

6,550

6,240 

5,690 

5,160 

4,750 

4,900

4,230 

3,820 

3,530 

3,320 

3,160

2,990 

2,840 

2,690 

2,950 

2,780

2,470 

2,330 

2,220 

2,110 

2,010

1,920 

1,850 

1,870 

2,090 

2,430 

1,900

Per 

square 

mile

0.737 

1.04 

1.10

2.90

1.10 

1.47 

2.12 

5.39 

9.92 

12.54 

3.91 

1.20 

.789

3.44

Aug.

1,750 

1,630 

1,550 

1,520 

1,600

1,660 

1,490 

1,420 

1,340 

1,300

1,270 

1,240 

1,190 

1,190 

1,150

1,110 

1,080 

1,060 

1,040 

1,000

980 

969

1,000 

1,080 

1,080

980 

936 

914 

892 

870 

848

Sept.

837 

815 

804 

793 

793

771 

760 

760 

760 

740

720

710 

815 

793 

750

771 

740 

720 

740 

710

690 

670 

660 

651 

680

1,430 

1,110 

848 

804 

750

Runoff

Inches

0.85 

1.16 

1.27

39.34

1.27 

1.53 

2.44 

6.01 

11.44 

13.99 

4.51 

1.39 

.88

46.74

Peak discharge (base 9,000 seo.-ft .) . Apr. 1 (6 D.ra.) 11,300 sec. -ft.: May 14 (11 D.m

Ao re-feet

45,130 

61,570 

67,480

2,090,000

67,480 

81,340 

129,700 

319,500 

607,400 

743,000 

239,500 

73,660 

46,800

2,483,000

) 15,600 sec

sec. ft.; June 5 (10 p.m.) 15,500 sec.-ft.; June 16 (10:30 p.m.) 17,500 sec.-ft.

* Winter discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice about Dec. 10 to Feb. 17. No gage-height record 

Nov. 28 to Feb. 15; discharge computed on basis of weather records and records for station near 

Ahaahka.
242 CLEARWATER RIVER BASIN

North Fork Clearwater River near Ahsahka, Idaho

Location.--Water-stage recorder, lat. 46°31', long. 116°18', In SE£ sec. 26, T. 37 N., R. 

IE., at Bruce's Eddy, 1-j miles northeast of Ahsahka and 2 miles upstream from mouth.

Drainage area.--2,440 square miles.

Records available. August 1926 to September 1950.

Average discharge. 24 years, 5,486 second-feet.

Extremes. Maximum discharge during year, 33,700 eecond-feet May 15 (gage height, 19.57 

reet); minimum 1,100 second-feet Oct. 1, Jan. 5; minimum gage height., 2.77 feet Oct. 1.

1926-50: 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.--Recrrds excellent except those for periods of ice effect, which are fair. No 

diversion or regulation above station.

Discharge, in second-feet, water year October 1949 to September 1950

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,200 

1,510 

1,200 

1,130 

1,390

2,450 

2,150 

1,740 

1,530 

1,710

1,860 

1,860 

1,830 

1,56C 

1,420

1,380 

1,380 

1,350 

1,340 

1,250

1,260 

1,270 

1,260 

1,270 

1,270

1,280 

1,270 

1,370 

3,200 

2,280 

1,720

Nov.

1,550 

1,460 

1,400 

1,370 

1,340

1,320 

1,300 

1,290 

1,420

1,670

1,650 

2,070 

2,520 

2,320 

1,950

1,760 

1,650 

1,580 

1,510 

1,480

1,460 

1 , 460 

1,390 

2,290 

4,060

3,670 

5,210 

5,890 

4,550 

4,230

Dec.

4,090 

3,630 

3,550 

3,090 

2,780

2,780 

2,560 

2,270 

2,200 

2,150

1,740 

1,560 

1,890 

2,140 

1,900

1,830 

1,940 

1,960 

1,850 

1,680

1,670 

1,750 

1,770 

2,040 

1,880

1,560 

1,740 

1,830 

2,040 

1,990 

1,830

Jan.

1,710 

1,640 

1,450 

1,250 

1,100

1,200 

*1,300 

1,600 

1,700 

1,650

1,600 

1,500 

1 , 400 

1,250 

1,150

1,200 

1,300 

1,400 

1,600 

2,000

4,000 

6,500 

7,670 

3,950 

3,110

2,800 

2,900 

2 ,600 

2,200 

al,900 

al,900

Month

Octc 

Nove 

Decs

Ca

Janu 

Febr 

Hare 

Apr! 

May 

June 

July 

Augu 

Sept

Wa

lendar year 194! 

ary

nary

st

ember ................... .

ter year 1949-50 ..........

Feb.

a2,000 

a2,200 

a2,400 

2,600 

2,500

2,400 

2,200 

2,100 

2,000 

1,950

1,900 

1,850 

1,850 

1,950 

2,100

2,300 

2,5^0 

 ~- JOO 

_,SUO >,soo

2,400 

2,350 

2,620 

4,500 

8,000

9,500 

9,840 

8,520

Secondfoot-days

48,490

66,820 

67,690

2,334,060

68,530 

92,730 

213,920 

429,100 

644,800 

709,400 

250,490 

77,960 

48,710

2,718,640

Peak discharge (base, 18,000 sec.. ft.).--

see. -ft.; May 15 (d a.i:..) 33.700 sec. -ft.;

Mar.

6,800 

5,920

5,460 

6,260 

9,100

9,540 

8,300 

7,280 

6,580 

6,000

5,300 

4,720 

4,520 

4,250 

4,050

4,050 

7,800 

12,700 

10,600 

9,670

8,480 

8,240 

7,860 

7,500 

7,280

6,720 

6,370 

5,920 

5,340 

5,260 

6,050

Maximum

3,20C 

5,S9C 

4,09C

41,30C

7,67C 

9,84C 

12,70C 

25,30C 

32,10C 

30,20C 

17.40C 

3,83C 

3,03C

32,10C

Apr.

18,200 

25,300 

16,700 

12,700 

11,300

10,800 

10,300 

10,700 

11,200 

10,600

10,600 

11-, 900 

15,500 

18,500 

15,600

14,200 

17,400 

17,700 

16,300 

16,000

17,600 

19,100 

17,000 

14,400 

13,000

11,800 

11,900 

11,500 

10,600 

10,700

May

12,200 

12,700 

12,10O 

11,300 

12,100

11,500 

10,400 

10,800 

12,300 

13,100

16,700 

21,600 

26,600 

30,600 

32 , 100

30,500 

30,300 

25,600 

21,300 

18,400

18,300

22,200 

27,800 

25,800 

24,600

25,100 

27,400 

27,400 

26,000 

24,000 

24,000

Minimum

1,130 

1,290 

1,560

1,070

1,100 

1,850 

4,050 

10,300 

10,400 

16,600 

3,920 

1,770 

1,370

1,100

June

24,800 

24,400 

24,500 

25,700 

27,700

27,800 

25,400 

23,100 

20,200 

19,300

21,300 

23,800 

26,400 

28,900 

27,500

28,500 

30,200 

27,700 

25,800 

25,500

26,700 

25,600 

22,300 

20,200 

20,600

17,600 

16,700 

16,600 

17,100 

17,500

Mean

1,564 

2,227 

2,184

6,395

2,211 

3,312 

6,901

14,300 

20,800 

23,650 

8,0'80 

2,515 

1,624

7,448

July

17,400 

16,500 

15,200 

14,300 

13,700

12,800 

11,800 

10,700 

9,840 

10,000

9,100 

7,980

7,420 

7,000 

6,650

6,330 

5,980 

5,630 

5,930 

6,260

5,380 

5,030 

4,770 

4,540 

4,340

4,130 

3,990 

3,920 

4,150 

5,250 

4,470

Per 

square 

mile

0.641 

.913 

.895

2.62

.906 

1.36 

2.83

5.86 

8.52 

9.69 

3.31 

1.03 

.666

3.05

Aug.

3,830 

3,530 

3,350 

3,210 

3,330

3,390 

3,280 

3,000 

2,840 

2,750

2,660 

2,590 

2,510 

2,510 

2,420

2., 330 

2,250 

2,200 

2,140 

2,070

2,040 

1,990 

1,980 

2,140 

2,200

2,140 

1,960 

1,890 

1,850 

1,810 

1,770

Sept.

1,730 

1,690 

1,660 

1,640 

1,640

1,670 

1,600 

1,560 

1,560 

1,550

1,510 

1,480 

1,500 

1,650 

1,600

1,540 

1,560 

1,510 

1,490 

1,490

1,440 

1,420 

1,390 

1,370 

1,370

1,760 

3,030 

2,060 

1,660 

1,580

Runoff

Inches

0.74 

1.02 

1.03

35.58

1.04 

1.41 

3.26 

6.54 

9.83 

10.81

l!l9 

.74

41.43

Acre-feet

96,180 

132,500 

134,300

4,629,000

135,900 

183,900 

424,300 

851,100 

1,279,000 

1,407,000 

496,800 

154,600 

96,610

5,392,000

Apr. 2 (1 a.m.) 30,600 sec. -ft.; Apr. 14 (3 a.m.) 19,700 

May 23 (9 a.m.) 29,300 sec. -ft.; June 17 (10 a.m.)

32,100 sec.-ft.

* Winter discharge measurement made jn this day. 

a ND gage-neight record; discharge computed on basi 

iver at Kamiah and at Spalding and other nearby stre 

N/te.--Stage-discharge relatijn affected by

id records f ~JT Clearwater
CLEARWATER RIVER BASIN 243

Potlatch Creek at Kendrick, Idaho

Location.--Wire-weight gage, lat. 46°37', long. 116°39', in NW£ see. 25, 1. 38 N., R. 3 

W. , 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 1950.

Extremes.--Maximum discharge observed during year, 8,900 second-feet Mar. 17 (gage height, 

1U.96 feet); minimum observed, 12 second-feet Sept. 13, 23; minimum gage height observed, 3 51 feet Oct. 1.

1945-50: Maximum discharge observed, 13,000 second-feet Feb. 26, 1948 (gage height, 

12.6 feet, from floodmarks), by slope-area method; minimum observed, 4.3 second-feet 

Aug. 25; minimum gage height observed, 3.28 feet Oct. 12-16, 1945.

Remarks. Records fair except those for periods of ice effect, which are poor. Gage read 

once or twice daily. No diversion or regulation.

Revisions [water years) . W 1093: 1946(M).

Discharge, in secoud-feet, water year October 1949 to September 1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

20

22

24

24

25

27

43

45

36

35

46

38

28

30

29

26

27

27

26

24

24

23

26

25

26

25

24

25

30

52

36

Nov.

32

30

28

28

27

27

27

27

27

32

43

53

53

58

46

41

37

34

34

35

31

30

30

38

84

79

68

121

75

64

-

Dec.

86

72

59

52

46

48

41

48

42

38

28

28

32

33

32

29

29

31

33

28

28

31

34

34

31

35

40

46

49

46

44

Jan.

40

35

30

28

30

*33

38

41

40

38

36

34

32

30

30

32

34

36

41

48

62

110

350

250

160

110

80

62

54

50

49

Month

October .......................

November ......................

December ......................

Calendar year 1949 .........

January ..... .................

February ......................

March .........................

April ....... .................

May ...........................

June ..........................

July ..........................

August ........................

September .....................

Water year 1949-50 .........

Feb.

50

55

60

65

70

75

75

72

68

66

62

60

60

55

100

250

724

1,160

514

420

321

299

317

3,340

5,380

5,310

*3,280

2,010

-

-

-

Secondfoot-days

, 918

1,339

1 ' 255

168,934.5

2,043

24,328

61,388

64,688

21,095

8,768

1,622

625

450

188,519

Mar.

1,320

1,180

gl,290

gl,730

g2,930

g3,380

1,970

gl,460

1,280

gl,130

800

729

g595

531

g493

g788

g6,780

g5,480

g3,850

S3,340

g2,480

g3,140

2,430

2,310

g2,150

gl,640

1,440

gl.110

g872

1,040

gl,720

Maximum

52

121

86

5,4SC

350

5,380

6,780

6,400

1,480

808

135

37

27

6,780

Apr.

g6,400

g5,240

g3,120

g2,180

2,310

g2,430

g2,000

g2,180

2,170

2,080

1,980

2,430

2,640

3,380

2,380

2,140

2,560

2,370

1,940

1,770

1,830

1,860

1,400

1,100

916

832

786

840

730

694

May

682

g864

g970

816

1,480

gl.110

g808

724

744

724

772

856

990

1,020

990

856

712

718

604

566

480

450

480

445

380

335

327

335

315

283

259

Minimum

20

27

28

6.1

28

50

493

694

259

145

23

15

12

12

June

239

227

207

191

191

175

203

243

239

183

152

283

525

808

694

550

385

365

307

251

243

263

215

195

311

365

251

199

163

145

Mean

29.6

44.6

40.5

463

65.9

869

1,980

2,156

680

292

52.3

20.2

15.0

516

July

135

111

100

94

84

70

70

61

57

68

57

57

50

50

43

39

39

34

34

34

37

34

29

29

27

26

23

23

24

35

48

Rsr 

square 

mile

0.064

.097

.088

1.01

. 143

1.89

4.30

4.69

1.48

.635

.114

.044

.033

1.12

Aug.

37

29

26

26

23

27

27

23

21

22

22

21

19

18

16

16

16

16

17

16

16

IS

15

17

19

21

17

18

17

16

15

Sept.

16

15

15

15

15

15

15

16

13

13

13

13

12

13

13

15

14

14

13

15

13

15

12

13

13

18

18

27

20

18

-

Runoff

Inches Acre-feet

0.07 1,820

.11 2,660

.10 2,490

13.65 335,100

.17 4,050

1.97 48,250

4.96 121,800

5.23 128,300

1.71 41,840

.71 17,390

.13 3,220

.05 1,240

.04 893

15.25 374,000

* Winter discharge measurement made on this day.

g Gage-height computed from graph based on gage readings and readings and recorder record for 

Maries River at Lotus.

Kobe.--Stage-discharge relation affected by ice Dec. 14-27, Dec. 31 to Feb. 16.
MISCELLANEOUS DISCHARGE MEASUREMENTS

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 1949 to September 1950

Snake River main stem

Date Stream Tributary to or 

diverting from Locality

bridge on U. S. HighwajB395, 410, 

24 miles east of Pasco, Wash.

Discharge 

(sec. -ft.)

Henrys Fork Basin, Idaho

July 14 Big Springs Creek. . Henrys Pork. ...... Sec. 33, T. 14 N., R. 44 E. , at 

site of former gaging station, 

4 mile southeast of Big Springs 

railroad station, and { mile 

below road bridge.

187

Portneuf River Basin, Idaho

Nov. 5 

Apr. 23

Birch Creek. ....... 

....do.. ...........

Marsh Creek. ...... SEj sec. 28, T. 12 S., R. 36 E., 

just downstream from point where 

flow that is diverted through Malad 

power plant reenters stream, 8.6 

miles southwest of Downey, and 10 

miles upstream from confluence with 

Marsh Creek. 

.... do ...............................

8.59 

18.3

Tributaries between Portneuf River and Salmon Palls Creek, Idaho

Mar. 21- 

23.

Devils Washbowl 

Springs.

Devils Corral 

Spring (upper 

outlet,.

Devils Corral 

Spring (lower 

outlet).

Unnamed spring. .

Blue Lakes outlet. 

Sunnybrook Spring.

Trail Springs 

(upper outlet).

Crystal Springs. 

Niagara Springs.

Clear Lakes Outlet.

Brlggs Creek.... 

Bambury Springs.

Unnamed spring..... 

Blind Canyon Spring

Snake River. NEiNEi sec. 4, T. 10 S., R. 18 E., 

| mile above Twin Falls of Snake 

River and plant of Idaho Power 

Co., 3i miles north of Kimberly. 

sec. 32, T. 9 S., R. 18 E., 

on north side of Snake River 100 

feet above point where spring 

cascades down to river.

SEiNW£ sec. 32, T. 9 S., R. 18 E., 

on north side of Snake River 

1/8 mile above mouth of creek.

Near center of sec. 31, T. 9 S., 

R. 18 E., on north bank of Snake 

River, i mile above Shoshone 

Power Plant.

Outlet to river in NWiSWj sec. 31, 

T. 9 S., R. 18 E., on north bank 

of Snake River, just above Shoshone 

Falls, on D. T. Heter property.

SW-iNWi sec. 34, T. 9 S., R. 17 E. , 

on north side of Snake River, 200 

yards below Rim to Rim bridge, 

2 miles north of Twin Palls.

SW-iSWi sec. 28, T. 9 S. , R. 17 E. , 

at point of entry to Snake River, 

4 miles north of Twin Palls.

SE-J-SEi sec. 19, T. 9 S., R. 17 E. , 

3/8 mile above point of entry to 

river.

SW£SWj sec. 14, T. 9 S., R. 16 E., 

1 mile below Rock Creek and 

6 miles northwest of Twin Falls.

Sec. 12, T. 9 S., R. 15 E., 6i

miles above Devils Washboard Palls 

in Snake River and 7 miles northeast of Buhl.

EiNEi sec. 10, T. 9 S., R. 15 E. , 

4i miles above Devils Washboard 

Palls and 6 miles northeast of 

Buhl.

SW^SEj sec. 2, T. 9 S., R. 14 E., 

at Clear Lakes plant of Idaho 

Power Co., 44 miles north of 

Buhl.

NW^SEi sec. 4, T. 9 S., fl. 14 E., 

Z miles below Clear Lakes outlet 

and 5i miles northwest of Buhl.

SEiNWi sec. 33, T. 8 S., R. 14 E., 

at footbridge over outlet to 

Snake River 7 miles northwest of 

Buhl.

SE-iSWt sec. 28, T. 8 S., R. 14 E. , 

on east side Snake River, 0.35 

mile above Blind Canyon Spring 

and 7 miles northwest of Buhl.

sec. 28, T. 8 S., H. 14 E., 

just upstream from Box Canyon 

and 7i miles northwest of Buhl.

* Discharge represents actual net spring flow adjusted for diversions and surface flow 

Salmon Palls Creek Basin, Nev.

May 27 Salmon Palls Creek. Snake River....... Sec. 30 

U. S.

south

, T. 45 N. , 

Highway 93 

of Contact

R. 64 E 

bridge,

, at 

1.4 miles

608
MISCELLANEOUS DISCHARGE MEASUREMENTS 245

Miscellaneous discharge measurements in Snalce River Basin during water year 

October 1949 to September 1950--Continued

Big Lost River Basin, Idaho

Date

June 28 

Aug. 10

Stream

Zollinger diteh. . . 

... .do. ...........

Tributary to or 

diverting from 

Big Lost River. .... 

. . .do .............

Locality

See. 32, T. 8 N. , R.*23 E. , 500 feet 

east of gaging station on Big Lost 

River (east channel) above Mackay 

Reservoir, 3 miles upstream from 

Maekay Dam, and 7^ miles northwest 

of Maekay. 

... .do. ..............................

Discharge 

(see. -ft. )

3.48

1.40

Tributaries and diversions between Salmon Falls Creek and Malad River, Idaho

Mar. 29

31

27 

Apr. 1

Thousand Springs..

Riley Creek. ......

Billingsly Creek. . 

Birch Creek. ......

Snake River: .......

.... do .............

Springs enter Snake River between 

mile 154.05 on river profile near 

line between sees. 17 and 20, T. 8 

S., R. 14 E., and mile 151.15 on 

river profile about 200 feet upstream from line between see. 1, T. 

8 S. , R. 13 E. , and see. 6, T. 83., 

R. 14 E. 

SW^NEi sec. 6, T. 8 S. , R. 14 E. , at 

Hagerman Hatchery of U. S. Fish and 

Wild Life Service, 100 yards below 

confluence of Riley and Lewis Creek, 

100 feet below small unnamed spring 

entering from right, and 5 miles 

southeast of Hagerman. 

Near line between sees. 31 and 32, T. 

73., R. 14 E. (spring heads in 

SWj-NW-j see. 32) at E. W. Bean 

farm 1/8 mile below head of creek 

and 3f miles southeast of Hagerman. 

SE£SE£ sec. 34, T. 6 S., R. 13 E. , 

on Bud Smith property, J mile 

south of Malad River and 2i miles 

north of Hagerman.

tl,190

*66.6

 »46.7 

*9.48

* Discharge represents actual net spring flow adjusted for diversions and surface flow. 

t Discharge obtained by measuring Snake River above and below spring outlets and adjusting for 

surface flow.

Malad River Basin, Idaho

Apr. 1 Malad Springs. .... Springs head in SE£ see. 24, T. 63., 

R. 13 E., and enter Snake River in 

NW£ see. 34, T. 6 S. , R. 13 E., 

3 miles north of Hagerman.'

*1,Z60

Owyhee River Basin, Oreg.

June 13 Jordan Creek. ..... Owyhee River. ...... NE-iNEi see. 13, T. 30 S. , R. 46 E. , 

50 feet below intake of Jordan 

Valley feed canal near Jordan 

Valley.

164

Malheur River Basin, Oreg.

Dee. 8

Aug. 6

Warmsprings Creek.

Cottonwood Creek. .

North Fork Malheur 

River.

Malheur River. .....

Near line between sections 1 and 2, 

T. 19 S. , R. 37 E. , 2j miles 

northeast of Beulah.

SE^NEi see. 31, T. 20 S. , R. 42 E. , 

5 miles south of Harper.

4.7

1.8

Payette River Basin, Idaho

June 2 Black Canyon Canal Payette River. ..... SE£ see. 22, T. 7 N., R. 1 W. , at 

rating bridge 0.04S mile south of 

Blaek Canyon Dam and 5 miles 

northeast of Emmett.

rating bridge at milepost 8.38, 

8 miles southwest of Blaek "Canyon 

Dam and 3 miles south of Emmett.

1,030 

969

Welser River Basin, Idaho

Oct. 12 Johnson Park Creek Johnson Creek. . . . . . SEi sec . 36

at mouth,

Council.

, T.

10

17 N.

miles

, R.

north

3 W. ,

west of

0.34

Powder River Basin, Oreg.

Sept. 9 Eagle Creek. ...... Powder River. ...... See. 18, T. 83., R. 45 E. , above 

mouth of Skull Creek, 5f miles 

north of New Bridge.

26, T. 9 S. , R. 45 E. , 1 mile 

south of Riehland.

135
MISCELLANEOUS DISCHARGE MEASDREMENTS

Miscellaneous discharge measurements in Snake River Basin during water year 

October 1949 to September 1950--Continued

Imnaha River Basin, Oreg.

Date

Aug. 26

Stream

Imnaha

Tributary 

diverting

to or 

from- -

Locality

Sec. 2

dale

3, T. 47 E. , T. 53., at CoverGuard station.

Discharge 

(sec. -ft.)

114

Grand Ronde River Basin, Oreg.

Jan. 20

11

15

Wallowa River. .....

do

.... do .............

Grande Ronde River SE-J-SEi 

abov

gagi

sec. SO, T. 3 S. , R. 45 E. , 

e Wallotva Lake at former 

ng station near Joseph.

37.9

394

Tucannon River Basin, Wash.

June 17

17

Linville Creek. ....

Skyhawk Gulch Creek

Pataha Creek. ......

Tatman Gulch. ......

SWjL sec. 9, T. 11 N., R. 41 E. , 

5- mile above Tatman Gulch and

5 miles southwest of Fomerov. 

NWj- sec. 26, T. 11 N. , R. 41 E. , 

0.9 mile above junction with Tatman Gulch and 5 miles south cf

Pomeroy.

*9,750

*5,200

at crest stage; computed by slope-area method.

Palouse River Basin, Wash.

1948

Feb. 27

27

Palouse River. .....

South Fork Palouse

River.

Snake River. .......

Palouse River. .....

SWj sec. 11, T. 16 N., R. 43 E. ,

above South Fork at highway

bridge at north end of Colfax.

NEj see. 6, T. 14 N. , R. 45 E. , at

State Street crossing in Fullman, 600 feet above Missouri

Plat Creek.

6,930

446
Accuracy of field data and computed

results. .........................

Acre-foot, definition of...............

Afton, Wyo., Swift Creek near..........

Agencies other than Geological Survey, 

records collected by.............

Agency Valley Reservoir, Oreg., contents of.........................

Ahsahka, Idaho, North Fork Clearwater 

River near.......................

Alpine , Idaho, Snake River at..........

Alturas Lake Creek near Obsidian, Idaho

American Falls Reservoir at American

Falls, Idaho.....................

Anderson Ranch Dam, Idaho, Anderson

Ranch Reservoir at...............

Fall Creek near......................

South Fork Boise River at............

Anderson Ranch Reservoir at Anderson

Ranch Dam, Idaho.................

Arco, Idaho, Big Lost River near.......

Argora, Idaho, Medicine Lodge Creek

near.............................

Arrowrock, Idaho, Arrowrock Reservoir 

at...............................

Boise River near.....................

Moore Creek near.....................

Irrowroek Reservoir at Arrowrock, Idaho

Ishton, Idaho, Henrys Fork near. .......

Isotin Creek near Asotin, Wash.........

Bambury Springs, Idaho, discharge

measurement of...................

Banks, Idaho, North Fork Payette River 

near.............................

South Fork Payette River near........

Bear Creek near Wallowa, Oreg..........

Bear Valley Creek near Cape Horn, Idaho 

Beaver Creek at Camas, Idaho...........

at Dubois, Idaho.....................

at Spencer, Idaho....................

Bellevue, Idaho, Big Wood River near... 

Bennett, Idaho , Lime Creek near........

Little Camas Canal near..............

Beulah, Oreg. , North Pork Malheur River 

at. ..............................

North Fork Malheur River near........

Big Creek near Big Creek, Idaho........

Big Lost River at Howell Ranch, near

Chilly, Idaho....................

at Wild Horse, near Chilly, Idaho....

below Mackay Reservoir, near Mackay, 

Idaho............................

east channel of, above Mackay Reservoir, near Mackay, Idaho.........

near Arco , Idaho.....................

west channel of, above Mackay Reservoir, near Mackay, Idaho........ 100-

Big Lost River Basin, Idaho, gagingstation records in...............97-

Big Springs Creek, Idaho, discharge

measurement of...................

Big Wood River at Hailey, Idaho.......110-

below Magic Dam, near Richfield,

Idaho............................

near Bellevue, Idaho.................

near Gooding, Idaho..................

near Ketchum, Idaho..................

Big Wood River Basin, Idaho, gagingstation records in..............109-

Big Wood Slough at Hailey, Idaho.......

Billingsly Creek, Idaho, discharge

measurement of...................

Birch Creek, Idaho, discharge measurements of......................... 244

Black Canyon Canal, Idaho, discharge

measurements of..................

Blackfoot, Idaho, Blackfoot River near. 

Snake River near.....................

Page

242

16

211

144

150

148

147

104

94

139

140

152

139

48

234

Page

Blackfoot River near Blackfoot, Idaho.. 65 

Blaine, Idaho , Camas Creek near ........ 118

Blaine County Investment Co.'a canal

near Howe, Idaho ................. 96

Blind Canyon Spring, Idaho, discharge

measurement of................... 244

Blue Lak-s outlet, Idaho, discharge

measurement < f................... 244

Blue Lakes Spring near Twin Falls,

Idaho............................ 81

Boise River at Boise, Idaho............ 142

at Dowling Ranch, near Arrowrock,

Idaho............................ 140

at Notus, Idaho...................... 144

diversions from.....................141,143

Middle Fork, near Twin Springs,

Idaho............................ 145

near Twin Springs , Idaho............. 138

South Fork, at Anderson Ranch Dam,

Idaho. ........................... 148

near Featherville, Idaho ........... 146

Boise River Basin, Idaho, gagingstation records in..............128-153

Box Canyon Spring near Wendell, Idaho.. 83 

Bridge, Idaho, Raft River near......... 68

Briggs Creek, Idaho, discharge measurement of.......................... 244

Bruneau River, East Fork, near Hot

Spring, Idaho..................... 128

near Hot Spring, Idaho ............... 127

near Winter Camp Ranch, Idaho........ 126

Bruneau River Basin, Nev., gagingstation records on..............126-128

Buffalo Fork near Moran, Wyo........... 37

Buhl, Idaho, Snake River near.......... 29

Bully Creek near Vale, Oreg...........160-161

Bungalow ranger station, Idaho, North

Pork Clearwater River at......... 241

Burgdorf, Idaho, Secesh River near..... 221

Burnt River near Hereford, Oreg........ 196

Burnt River Basin, Oreg., gagingstation records in..............195-196

Caldwell, Idaho, Lake Lowell near......

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......

W0 iser River near....................

Cape Horn, Idaho, Bear Valley Creek

near.............................

Middle Fork Salmon River near........

Carey, Idaho, Little Wood River near..119,120 

Cascade, Idaho, North Fork Payette

River at.........................

Cascade Reservoir at Cascade, Idaho....

Catherine Creek near Union, Oreg. ......

Challis, Idaho, Challis Creek near.....

Salmon River near....................

Challis Creek near Challis, Idahu......

Chester, Idaho, Fall River near........

Chilly, Idaho, Big Lost River near.....

Clarkston, Wash., Snake River near.....

Clayton, Idaho, Salmon River near......

Clear Creek near Maf, Idaho. ...........

Clear Lakes Outlet, Idaho, discharge

measurement of................... 244

Clearwater River at Kamiah, Idaho...... 236

at Spalding, Idaho ................... 237

North Fork, at Bungalow ranger station, Idaho....................

near Ahsahka, Idaho..............

South Fork near Elk City, Idaho....

near Grangeville , Idaho............ 240

118

90

89

188

183

217

216

174

173

227

213

206

213

56

97,98

3, 35

205

69
248 INDEX

Clearwater River Basin, Idaho-Mont.,

gaging-station records in.......235-243

Computations, accuracy of, results of.. 

Contact, Nev., Salmon Falls Creek near. 

Contents, definition of................

Control, definition of.................

Cooperation, record of.................

Cottonwood Creek, Oreg. , discharge

measurement of...................

Cottonwood Creek near Smoot, Wyo.......

Council, Idaho, Weiser River near......

Crane Creek at mouth, near Weiser,

Idaho............................

near Midvale, Idaho..................

Crane Creek Reservoir near Midvale,

Idaho. ...........................

Crooked Creek near Rome, Oreg. .....'....

Crystal Springs, Idaho, discharge

measurement of...................

245

42

182

192

191

190

137

Data, accuracy of......................

explanation of.......................

Deadwood Reservoir near Lowman, Idaho. 

Deadwood River below Deadwood Reservoir , near Lowman, Idaho.........

near Lowman, Idaho..................

Devils Corral Spring (lower outlet),

Idaho, discharge measurement of.. 

Devils Corral Spring (upper outlet),

Idaho, discharge measurement of.. 

Devils Washbowl Springs, Idaho, discharge measurement of............

near Kimberly, Idaho.................

Drewsey, Oreg., Malheur River near....,

Driggs, Idaho, Horseshoe Creek near..., 

Teton Creek near.....................

Dubois, Idaho, Beaver Creek at.........

168

169

170

154

62

61

92

245

166

Eagle Creek, Oreg., discharge measurements of.........................

Elk City, Idaho, South Fork Clearwater 

River near.......................

Emmett, Idaho, Payette River near......

Fall Creek near Anderson Ranch Dam,

Idaho. ........................... 150

Fall River, diversions from............ 54,56

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.

Garden Valley, Idaho, South Fork

Payette River near...............

Gold Creek, Nev., Owyhee River near....

Wild Horse Reservoir near............

Gooding, Idaho, Big Wood River near....

Gooding Canal at Milner, Idaho. ........

Goose Creek above Trapper Creek, near 

Oakley, Idaho....................

Grande Ronde River at La Grande, Oreg.. 

at Rondowa, Oreg.....................

at Troy, Oreg........................

near Hilgard, Oreg...................

Grande Ronde River Basin, Oreg., discharge measurements in.

176

11

163

130

129

225

gaging-station records in...........223-233

Grangeville, Idaho, South Fork Clearwater River near. 

Grassy Lake , Idaho , contents of........

Gros Ventre River at Kelly, Wyo........

Gumboot Creek, Oreg., Imnaha River

above..................... ......

240

53

38

210

Hagerman, Idaho, King Hill Canal near.. 

Riley Creek Springs near.............

Snake River near.

108 

30 

Hailey, -------- Idaho, Big Wood River at......110-111 117

198 

18 

50 

47 

diversions from...................... 49,51

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.

Henrys Fork near Island Park, Idaho....

near Lake, Idaho.....................

near Rexburg, Idaho.

44 

..... 52

Henrys Fork Basin, Idaho, gagingstation records in............... 44-64

53 

53 

196 

223 

39 

156

165

62

127

128

96

95

smaller reservoirs in................

Henrys Lake, Idaho, contents of........

Hereford, Oreg., Burnt River near......

Hilgard, Oreg. , Grande Ronde River near 

Hoback River near Jackson, Wyo.........

Hope, Oreg., Malheur River near........

Horseshoe Bend, Idaho, Payette River

near.............................

Horseshoe Creek near Driggs, Idaho.....

Hot Spring, Idaho, Bruneau River near..

East Fork Bruneau River near.

Howe, Idaho, Blaine County Investment 

Co.'s canal near................

Little Lost River near.

Hurricane Creek near Joseph, Oreg...... 231

Imbler, Oreg. , Indian Creek near....... 228

Imnaha River above Gumboot Creek, Oreg. 201

at Imnaha, Oreg...................... 202

discharge measurement of............. 246

Imnaha River Basin, Oreg., gagingstation records in..............201-202

Indian Creek near Imbler, Oreg......

Indian Valley, Idaho, Little Weiser

River near.

Irwin, Idaho, Snake River near.........

Island Park, Idaho, Henrys Fork near... 

Island Park Reservoir near...........

Island Park Reservoir near Island Park,

Idaho.

Jackson, Wyo., Hoback River near.......

Jackson Lake at Moran, Wyo.............

Johnson Creek at Ye-llow Pine, Idaho..., 

Johnson Park Creek, Idaho, discharge

measurement of.

Jordan Creek above Lone Tree Creek,

near Jordan Valley, Oreg.

Joseph, Oreg., East Fork Wallowa River 

near.............................

Hurricane Creek near.................

Wallowa Falls power-plant tailrace 

near.............................

Kamiah, Idaho, Clearwater River at.....

Kelly, Wyo., Gros Ventre River at......

Kendrick, Idaho, Potlatch Creek at....,

Ketchum, Idaho, Big Wood River near...,

228

189

17

46

45

45

39

14

220

136

229

231

230

236

38

243

109

Warm Springs Creek near.............. 116

Kilgore, Idaho, Catnas Creek near. 

Kimbejrly, Idaho, Devils Washbowl Spring

near. 

Snake River near.

89

80

28

King Hill, Idaho, Snake River at....... 3 31

King Hill Canal near Hagerman, Idaho... 124 

Knox, Idaho, South Fork Salmon River

La Grande, Oreg., Grande Ronde River at 

Lake, Idaho , Henrys Fork near..........

Lake Fork. See Payette River, Lake

Fork.

Lake Fork Reservoir near McCall, Idaho. 

Lake Irrigation District Canal near

219

224

44

178

McCall, Idaho.................... 180

Lake Lowell near Caldwell, Idaho. 

Lake Walcott near Minidoka, Idaho. 

Lime Creek near Bennett, Idaho.... 

Linville Creek, Wash. , discharge 

measurement of.

Little Camas Canal at heading, near

Bennett, Idaho.

Little Lost River near Howe, Idaho....,

153

25

149

246

151

95

Little Lost River Basin, Idaho, gagingstation records in............... 95-96

Little Weiser River near Indian Valley,

Idaho. 189

Little Wood River at Campbell Ranch,

near Carey, Idaho................ 119

near Carey, Idaho.................... 120

48 Lochsa River near Lowell, Idaho 238
INDEX 249

Page 

Lost Creek near Tamarack, Idaho. ....... "186

Lost Valley Reservoir near Tamarack,

Idaho. ........................... 185

Lostine River near Lostine, Oreg....... 232

Lowell , Idaho, Loehsa River near. ...... 238

Selway River near. ................... 235

Lowman, Idaho, Deadwood Reservoir near. 168 

Deadwood River near. ............... .169,170

South Fork Payette River at. ......... 162

McCall , Idaho, fish hatchery diversion 

at. ..............................

Lake Fork Payette River near. ...... .177

Lake Fork Reservoir near. ............

Lake Irrigation District Canal near.. 

North Pork Payette River at ..........

Payette Lake at. ......................

Mackay, Idaho, Big Lost River

near. ................... .99,100-101

Mackay Reservoir near. ...............

Sharp ditch near .....................

Warm Spring Creek near. ............ .105

Mackay Reservoir near Mackay, Idaho....

Magic Reservoir near Richfield, Idaho.. 

Malad Springs, Idaho, discharge measurement of ..........................

Malheur River at Little Valley, near

Hope, Oreg. ......................

below Warmsprings Reservoir, near

Riverside , Oreg ..................

near Drewsey, Oreg. ..................

North Fork, above Agency Valley

Reservoir, near Beulah, Oreg.....

at Beulah , Oreg ....................

Malheur River Basin, Oreg., discharge 

measurements in. .................

gag ing- station records in. ......... .154

reservoirs in. .......................

Mann Creek near Weiser, Idaho. .........

May, Idaho, Pahsimeroi River near......

Medicine Lodge Creek at Ell is Ranch,

near Argora , Idaho ...............

Mesa, Idaho, Mesa Orchards Canal near.. 

Mesa Orchards Canal near Mesa, Idaho... 

Midvale , Idaho, Crane Creek near .......

Crane Creek Reservoir near. ..........

Milner, Idaho, Gooding Canal at ........

Milner low-lift canal near. ..........

North Side Twin Falls Canal at. ......

P. A. lateral near. ..................

Snake River at .......................

South Side Twin Palls Canal at .......

Milner low-lift canal near Milner,

Idaho. ...........................

Minidoka, Idaho, Lake Walcott near.....

Worth Side Minidoka Canal near.......

Snake River near .....................

South Side Minidoka Canal near.......

Moore Creek near Arrowrock, Idaho......

Mo ran, Wyo. , Buffalo Fork near. ........

Jackson Lake at ......................

Pacific Creek near. ..................

Snake River at .......................

Mountain Home, Idaho, Mountain Home

feeder canal near. ...............

Mountain Home feeder canal near Mountain Home , Idaho .................

Mud Creek near Tamarack, Idaho. ........

Mud Lake near Terreton, Idaho. .........

Mud Lake Basin, Idaho, gaging-station

records in ....................... 8i

Murphy, Idaho, Snake River near........ 3

Naf, Idaho, Clear Creek near...........

Neeley, Idaho, Snake River at..........

Niagara Springs, Idaho, discharge

measurement of...................

North Powder, Oreg., Wolf Creek near...

North Side Minidoka Canal near Minidoka , Idaho......................

North Side Twin Falls Canal at Milner, 

Idaho............................

Notus, Idaho, Boise River at...........

Nyssa, Oreg., Owyhee Reservoir near....

Oakley, Idaho, Goose Creek near 

Oakley Reservoir near........

Trapper Creek near...........

176

179

178

180

172

171

103

102

107

106

102

113

245

156

155

154

158

159

245 

-161 

157 

194 

214

94

187

187

191

190

77

76

78

75

27

79

76

25

70

26

71

152

37

14

36

15

125

125

222

88

3-94 

, 32

69

24

244

200

70

78

144

134

72

73

74

Page 

Oakley Reservoir near Oakley, Idaho.... 73

Obsidian, Idaho, Alturas Lake Creek

near............................. 211

Salmon River near.................... 203

Owyhee Dam, Oreg., Owyhee River below.. 135 

Owyhee Reservoir, Oreg., Owyhee River

above............................ 133

at Owyhee Dam, near Nyssa, Oreg...... 134

Owyhee River above China diversion dam,

near Owyhee, Nev................. 131

above Owyhee Reservoir, Oreg......... 133

below Owyhee Dam, Oreg............... 135

near Gold Creek, Nev................. 130

near Rome, Oreg...................... 132

Owyhee River Basin, Nev.-Oreg., gagingstation records in..............129-137

Oxbow, Oreg., Snake River at........... 34

P. A. lateral near Milner, Idaho....... 75

Packsaddle Creek near Tetonia, Idaho... 63 

Pacific Creek near Moran, Wyo.......... 36

Pahsimeroi River near May, Idaho....... 214

Palouse River, Wash., discharge measurement of.......................... 246

South Fork, discharge measurement of. 246 

Palouse River Basin, Wash., discharge

measurements in.................. 246

Panther Creek near Shoup, Idaho........ 215

Payette Lake at McCall, Idaho.......... 171

Payette River, Lake Fork, above Jumbo

Creek, near McCall, Idaho ........ 177

below Lake Irrigation District Canal,

near McCall, Idaho............... 179

near Emmett, Idaho................... 166

near Horseshoe Bend, Idaho. .......... 165

near Payette, Idaho.................. 167

North Fork, at Cascade, Idaho........ 174

at McCall, Idaho................... 172

near Banks, Idaho.................. 175

South Fork, at Lowman, Idaho......... 162

near Banks, Idaho.................. 164

near Garden Valley, Idaho.......... 163

Payette River Basin, Idaho, gagingstation records in..............162-180

Picabo, Idaho, Silver Creek near....... 123

Pine Creek near Cambridge, Idaho....... 188

Pocatello, Idaho, Portneuf River at.... 67

Portneuf River at Pocatello, Idaho..... 67

at Topaz, Idaho...................... 66

tributaries and diversions between,

and Salmon Falls Creek........... 68-83

tributaries between, and Salmon

Falls Creek, discharge measurements in......................... 244

Portneuf River Basin, Idaho, gagingstation records in............... 66-67

Potlatch Creek at Kendrick, Idaho...... 243

Powder River at Salisbury, Oreg........ 197

near Haines, Oreg.................... 198

near Robinette, Oreg................. 199

Powder River Basin, Oreg., gagingstation records in..............197-200

Publications on stream flow by Geological Survey....................... 6-9

by State agencies.................... 9-11

Raft River at Peterson Ranch, near

Bridge, Idaho.................... 68

Rexburg, Idaho, Henrys Fork near....... 52

Richfield, Idaho, Big Wood River near.. 114

Little Wood River near............... 121

Magic Reservoir near................. 113

Riley Creek, Idaho, discharge measurement of.......................... 245

Riley Creek Springs near Hagerman,

Idaho............................ 108

Riverside, Oreg., Malheur River near... 155 

Robinette, Oreg., Powder River near.... 199

Rock Creek near Rock Creek, Idaho...... 82

Rogerson, Idaho, Salmon River Canal Co.

canal near....................... 87

Salmon River Canal Co. reservoir near 86 

Rome, Oreg., Crooked Creek near........ 137

Owyhee River near.................... 132

Rondowa, Oreg., Grande Ronde River at.. 225 

Runoff in inches, definition of ........ 1

St. Anthony, Idaho, Henrys Fork at..... 50
INDEX

Page

St. Anthony, Idaho, Teton River near... 59 

Salisbury, Oreg., Powder River at...... 197

Salmon Falls Creek above upper Vineyard

ditch, near Contack, Nev......... 84

discharge measurement of ............. 244

near San Jacinto, Nev................ 85

Salmon Falls Creek Basin, Idaho, Nev.,

discharge measurements in........ 244

gaging-station records in............ 84-87

Salmon Forks Creek, Idaho, tributaries 

and diversions between, and Malad 

River, discharge measurements in. 245 

Salmon River at Salmon, Idaho.......... 207

at Whirebird, Idaho .................. 210

belon Valley Creek, at Stanley, Idahu 204 

below Yankee Fork, near Clayton,

Idaho............................ 205

Middle Fork, near Cape Horn, Idaho... 216 

near Challis , Idaho.................. 206

near French Creek, Idaho............. 209

near Obsidian, Idaho ................. 203

near Shoup , Idaho.................... 208

South Fork, near Knox, Idaho ......... 219

Salmon River Basin, Idaho, gagingstation records in. .............202-222

near Rogerson, Idaho ................. 87

Salmon River Canal Co. reservoir near

Rugersnn, Idaho.................. 86

Salt River at Wyuming-Idaho State lino. 41 

near Smoot, Wyo...................... 40

tributaries above.................... 36-39

Salt River Basin, Wyo., gaging-station

records in....................... 40-43

San Jacinto, Nev. , Salmon Falls Creek

near............................. 85

Secesh River near Burgdorf, Idaho...... 221

Second-feet per square mile, definition

of............................... 1

Second-foot, definition of............. 1

Second-foot-day, definition of......... 1

S^Iway River near Lowell, Idaho ........ 335

Sharp dit^h near Mackay, Idaho......... 107

Shelley, Idaho, Snake River near....... 20

Slioshone , Idaho, Little Wood River at.. ICC 

Shoup, Idaho, Panther Creek near....... C15

Salmon Riv°r near.................... 208

Silver Creek near Picabu, Idaho........ 123

Skyhawk Oulch Cr^ek, Wash., discharge

measurement of................... 246

Smoot, Wyo., Cottonwood Creek near..... 42

Salt River near. ..................... 40

Snake River at King Hill, Idaho........ 3, 31

at- Milner, Idaho. .................... 27

at Moran, Wyo........................ 15

at Heeley, Idaho ..................... 24

at Oxbow, Oreg....................... 34

at Weiser, Idahu. .................... 33

below Greys River, at Alpine, Idaho.. 16 

below Lower Salmon Falls, near Hagerman, Idaho. ...................... 30

discharge measurements of............ 244

diversions from...................... 19,21

near BlacWout, Idahu................ 22

near Buhl, Idaho..................... 29

near Clarkstun, Wash................. 3, 35

near Heise , Idahu ..................... 18

near In*In, Idaho.................... 17

near Kimberly, Idaho ................. 28

near Minidoka, Idaho ................. 26

near Murphy, Idaho................... 3 , 3 C

near Shelley, Idaho .................. 20

Snak'. River main stem, Idaho-Wash. , discharge measurements on........... 244

gaging-statiun records on............ 14-35

Suuth Side Minidoka Canal near Minidoka,

Idaho... ......................... 71

South Side Twin Falls Canal at Milne^,

Idaho............................ 79

Spalding, Idaho, Clearwater River at... 237 

Spencer, Idahu, Beaver Creel; at........ 91

Spring Creek near Te-tonia, Idaho....... 64

Squirrel, Idah>_ , Fall River near....... 55

Stage-discharge relation, definition of 1

Page 

Stanley, Idaho, Salmon River at........ 204

Valley Creek at...................... 212

Sunnybrook Spring, Idaho, discharge

measurement of................... 244

Swift Creek near Afton, Wyo............ 43

Tamarack, Idaho, Lost Creek near....... 186

Lost Valley Reservoir near........... 185

Mud Creek near....................... 222

Weiser River at...................... 181

Terms, definition of................... 1

Terreton, Idaho, Mud Lake near......... 88

Tetun Creek near D^ggs, Idaho. ........ 61

Teton River, diversions from........... 60

near 3t. Anthony, Idaho .............. 59

near Tetonia, Idaho.................. 58

near Victor, Idaho................... 57

Tetonia, Idaho, Packsaddle Creek near.. 63

Spring Creek near. .................... 64

Teton River near..................... 53

Thousand Springs, Idaho, discharge

measurement of................... 245

Topaz, Idaho, Portneuf River at........ 66

Trail Springs (upper outlet) Idaho,

discharge measurement of ......... 244

Trapper Creek near Oakley, Idaho....... 74

Troy, Oreg., Grande Ronde River at..... 226

Tucannon River Basin, Wash., discharge

measurement in................... 246

Twin Falls, Idaho, Blue Lakes Spring

near............................. 81

Twin Springs, Idaho, Boise River near.. 138

Middle Work Boise River near. ........ 145

Union, Oreg., Catherine Creek near..... 227

Unity Reservoir near Unity, Oreg....... 195

Wallowa, Oreg. , Bear Creek near........ 233

Wallowa Falls power-plant tailrace near

Joseph, Oreg..................... 230

Wallowa River, Oreg., discharge measurements of......................... 246

East Fork, near Joseph, Oreg......... 229

Warm River, Idaho, Henrys Fork at...... 47

Warm Spring Cre ek, east channel of,

near Mackay, Idaho ............... 105

w~3t channel of, near Mackay, Idaho.. 106 

Warm Springs Creek at Guyer Hot Springs,

near Ketchum, Idahu.............. 116

(Warmsprings Creek, Oreg. , discharge

measurements rf.................. £45

Warmsprings Reservoir, Oreg., contents

of. .............................. 157

Weiser, Idaho, Crane Creek near........ 192

Mann Creek near...................... 194

Snake River at....................... 33

Weiser Irrigation District Canal near 193 

Weiser River near.................... 184

Weiser Irrigation District Canal near

Weiser, Idaho.................... 193

Weiser River above Crane Creek, near

Weiser, Idaho .................... 184

at Tamarack, Idaho................... 161

near Cambridge, Idaho ................ 183

near Council, Idaho.................. 182

Weiser River Basin, Idaho, gagingstation records in..............181-194

Wendell, Idaho, Box Canyon Spring near. 83 

Whitebird, Idaho, Salmon River at...... 210

!wild Horse Reservoir near Gold Creel:, Nev. 129 

Winter Camp Ranch, Idaho, Bruneau River

near............................. 126

Wolf Creek near North Powder, Oreg..... 200

Work, division of...................... 13

scope of............................. 1

Yellow Pine, Idaho, Johnson Creek at... 220

245

Zollinger ditch, Idaho, discharge 

measurement of..............

U. S. GOVERNMENT PRINTING OFFICE: O 1953