Surface Water Supply 

of the United States 

1951

Part 13. Snake River Basin

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1217

Prepared in cooperation with the States 

of Idaho, Oregon, Utah, Washington, 

and Wyoming and with other agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1954
UNITED STATES DEPARTMENT OF THE INTERIOR 

Douglas McKay, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

Washington 25, D. C. - Price 75 cents (paper cover)
PEEFACE

This report was prepared by the Geological Survey in cooperation 

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

and with 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___________________________Tacoina, Wash. 

M. T. Wilson_______________________Salt Lake City, Utah

in
CONTENTS

Page 

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

Cooperation.......................................................................... 1

Division of work..................................................................... 2

Definition of terms and abbreviations ................................................ 2

New downstream order of listing gaging stations...................................... 3

Explanation of data.................................................................. 3

Accuracy of field data and computed results.......................................... 7

Publications......................................................................... 8

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

Hydrologic conditions................................................................ 12

Gaging-station records............................................................... 13

Jackson Lake at Moran, Wyo......................................................... 13

Snake River at Moran, Wyo.......................................................... 14

Pacific Creek basin:

Pacific Creek near Moran, Wyo.................................................... 15

Buffalo Fork basin:

Buffalo Fork near Moran, Wyo..................................................... 16

Gros Ventre River basin:

Gros Ventre River at Kelly, Wyo.................................................. 17

Hoback River basin:

Hoback Kiver near Jackson, Wyo.................................................... 18

Snake River below Greys River, at Alpine , Idaho.................................... 19

Salt River basin:

Sanf River near Smoot, Wyo....................................................... 20

Cottonwood Creek near Smoot, Wyo............................................... 21

Swift Creek near Afton, Wyo.................................................... 22

Salt River at Wyoming-Idaho State line........................................... 23

Snake River near Irwin, Idaho...................................................... 24

Diversions from Snake River between Heise and Shelley gaging stations, Idaho..... 26

Henrys Fork basin:

Henrys Fork near Lake, Idaho..................................................... 27

Island Park Reservoir near Island Park, Idaho.................................... 28

Henrys Fork near Island Park, Idaho.............................................. 29

Henrys Fork at Warm River, Idaho................................................. 30

Henrys Fork near Ashton, Idaho................................................... 31

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

Idaho.................................................................... 32

Fall River:

Diversions from Fall River above gaging station near Squirrel, Idaho......... 33

Fall River near Squirrel, Idaho................................................ 34

Diversions from Fall River between Squirrel and Chester gaging stations,

Idaho.................................................................. 35

Fall River near Chester, Idaho................................................. 35

Henrys Fork at St. Anthony, Idaho................................................ 36

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

Idaho.................................................................... 36

Teton River near Victor, Idaho ................................................. 37

Teton Creek near Driggs, Idaho............................................... 38

Horseshoe Creek near Driggs, Idaho ........................................... 39

Teton River near Tetonia, Idaho................................................ 40

Teton River near St. Anthony, Idaho............................................ 41

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

Idaho.................................................................. 42

Henrys Fork near Rexburg, Idaho.................................................. 43

Smaller reservoirs in Henrys Fork basin.......................................... 44

Snake River near Shelley, Idaho.................................................... 45

Diversions from Snake River between Shelley and Blackfoot gaging stations, Idaho. 46

Blackfoot River basin:

Blackfoot River near Blackfoot, Idaho............................................ 47

Snake River near Blackfoot, Idaho.................................................. 48

Portneuf River basin:

Fortneuf River at Topaz , Idaho................................................... 49

Portneuf River at Pocatello , Idaho ............................................... 50

American Falls Reservoir at American Falls , Idaho.................................. 51

Snake River at Neeley, Idaho....................................................... 52

Raft River basin: 

RaTT River:

Clear Creek near Naf, Idaho.................................................... 53

Raft River at Peterson Ranch, near Bridge , Idaho................................. 54

Lake Walcott near Minidoka. Idaho

Diversions from Lake Walcott:

North Side Minidoka Canal near Minidoka, Idaho................................... 56

South Side Minidoka Canal near Minidoka, Idaho................................... 57

Snake River near Minidoka, Idaho

Goose Creek basin:

oose Ureek above Trapper Creek, near Oakley, Idaho.............................. 59

Trapper Creek near Oakley, Idaho
VI CONTENTS

Gaging-station records Continued.

Snake River Continued. Page 

Diversions from Snake River between Goose Creek and Snake River at Mllner: 

f. A. lateral near Mllner, Idaho!... ............................................. 62

Milner low-lift canal near Milner , Idaho ......................................... 63

Gooding Canal at Milner , Idaho ................................................... 64

North Side Twin Falls Canal at Milner , Idaho ..................................... 65

South Side Twin Falls Canal at Milner , Idaho ..................................... 66

Snake River at Milner , Idaho ....................................................... 67

Devils Washbowl Spring basin:

Devils Washbowl Spring near Kimberly , Idaho ...................................... 68

Snake River near Kimberly , Idaho ................................................... 69

Blue Lakes Spring basin:

Blue Lakes Spring near Twin Falls , Idaho ......................................... 70

Rock Creek basin:

Rock Creek near Rock Creek , Idaho ................................................ 71

Snake River near Buhl , Idaho ....................................................... 72

Box Canyon Springs basin:

Box Canyon Springs near Wendell , Idaho ........................................... 73

Salmon Falls Creek basin:

Salmon Falls Creek above upper Vineyard ditch, near Contact, Nev. ................ 74

Salmon Falls Creek near San Jacinto, Nev. ........................................ 75

Salmon River Canal Co . reservoir near Rogerson , Idaho ............................ 76

Salmon River Canal Co . canal near Rogerson , Idaho .............................. 77

Mud Lake -Lost River basins:

Hud. Lake near Terreton, Idaho .................................................. 78

Camas Creek at Eighteenmile shearing corral , near Kilgore , Idaho ............. 79

Camas Creek at Camas , Idaho .................................................. 80

Beaver Creek at Spencer, Idaho. ............................................ 81

Beaver Creek at Dubois , Idaho .............................................. 82

Beaver Creek at Camas , Idaho ............................................... 83

Medicine Lodge Creek at Kills Ranch, near Argora, Idaho. ....................... 84

Little Lost River near Howe , Idaho ........................................... 86

Blaine County Investment Co . ' s canal near Howe , Idaho ...................... 87

Big Lost River at Wild Horse , near Chilly , Idaho ............................. 88

Big Lost River at Howell Ranch, near Chilly, Idaho. .......................... 89

Big Lost River (east channel) above Mackay Reservoir, near Mackay, Idaho..... 90

Big Lost River (west channel) above Mackay Reservoir, near Mackay, Idaho..... 91

Warm Spring Creek ( east channel ) near Mackay , Idaho ........................ 93

Warm Spring Creek (west channel ) near Mackay , Idaho ........................ 94

Mackay Reservoir near Mackay , Idaho .......................................... 95

Sharp ditch near Mackay, Idaho ............................................. 96

Big Lost River below Mackay Reservoir , near Mackay , Idaho .................... 97

Big Lost River near Arco , Idaho .............................................. 98

Riley Creek basin: 

Riley Creek:

Riley Creek Springs near Hagerman , Idiho ....................................... 99

Lewis Spring: 

Brailsf ord ditch near Hagerman , Idaho ........................................ 100

Riley Creek below Lewis Spring near Hagerman , Idaho .............................. 101

Snake River below Lower Salmor Falls , near Hagerman, Idaho ......................... 102

Malad River basin:

Big Wood River (head of Malad River) near Ketchum, Idaho ......................... 103

Warm Springs Creek at Guyer Hot Springs , near Ketchum , Idaho ................... 104

Big Wood Slough at Hailey , Idaho ............................................... 105

Big Wood River at Hailey , Idaho .................................................. 106

Big Wood River near Bellevue , Idaho .............................................. 108

Camas Creek near Blaine , Idaho ................................................. 109

Magic Reservoir near Richfield , Idaho ............................................' 110

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

Little Wood River at Campbell Ranch, near Carey, Idaho. ........................ 112

Little Wood River near Carey , Idaho ............................................ 113

Silver Creek near Picabo , Idaho .............................................. 114

Little Wood River near Richfield , Idaho ........................................ 115

Little Wood River at Shoshone , Idaho ........................................... 116

Malad River near Gooding , Idaho .................................................. 117

King Hill Canal near Hagerman, Idaho ........................................... 118

Snake River at King Hill , Idaho .................................................... 119

Canyon Creek basin: 

Canyori Creek:

Mountain Home feeder canal near Mountain Home , Idaho ........................... 120

Bruneau River basin: 

Bruneau River:

East Fork Bruneau River near Hot Spring , Idaho ................................. 121

Bruneau River near Winter Camp Ranch , Idaho ...................................... 122

Bruneau River near Hot Spring , Idaho ............................................. 123

Snake River near Murphy , Idaho ..................................................... 124

Owyhee River basin: 

Wild "Horse Reservoir near Gold Creek, Nev........................................ 125

Owyhee River near Gold Creek, Nev................................................ 126

Owyhee River above China diversion dam, near Owyhee, Nev......................... 127

Jordan Creek above Lone Tree Creek, near Jordan Valley, Oreg................... 128

Owyhee River near Rome, Oreg..................................................... 129

Crooked Creek near Rome, Oreg.................................................. 130

Owyhee River above Owyhee Reservoir, Oreg........................................ 131

Owyhee Reservoir at Owyhee Dam, near Nyssa, Oreg................................. 132

Owyhee River below Owyhee Dam, Oreg.............................................. 133

Boise River basin:

Boise River near Twin Springs, Idaho............................................. 134
CONTENTS VI1

Gaging-station records Continued. 

Snake River Continued.

Boise River basin Continued. Page 

South Fork Boise River near Featherville, Idaho................................ 135

Lime Creek near Bennett, Idaho............................................... 136

Fall Creek near Anderson Ranch Dam, Idaho .................................... 137

Little Camas Creek:

Little Camas Canal at heading, near Bennett, Idaho......................... 138

Anderson Ranch Reservoir at Anderson Ranch Dam, Idaho.......................... 139

South Fork Boise River at Anderson Ranch Dam, Idaho............................ 140

Arrowrock Reservoir at Arrowrock, Idaho .......................................... 141

Boise River at Dowllng Ranch, near Arrowrock, Idaho.............................. 142

Moore Creek:

Bannock Creek near Idaho City, Idaho......................................... 143

Moore Creek above Robie Creek, near Arrowrock, Idaho........................... 144

Robie Creek near Arrowrock, Idaho............................................ 145

.-Moore Creek near Arrowrock, Idaho .............................................. 146

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

Idaho.................................................................... 147

Lake Lowell near Caldwell, Idaho............................................... 148

Boise River at Boise, Idaho...................................................... 149

Diversions from Boise River between Boise and Notus gaging stations, Idaho..... 150

Boise River at Notus, Idaho...................................................... 151

Malheur River basin:

Malheur River near Drewsey, Oreg................................................. 152

Malheur River below Warmsprings Reservoir, near Riverside, Oreg.................. 153

North Fork Malheur River above Agency Valley Reservoir, near Beulah, Oreg...... 154

North Fork Malheur River at Beulah, Oreg....................................... 155

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

Bully Creek near Vale, Oreg.................................................... 157

Reservoirs in Malheur River basin, Oreg.......................................... 158

Payette River basin:

South Fork Fayette River at Lowman, Idaho........................................ 159

Deadwood Reservoir near Lowman, Idaho.......................................... 160

Deadwood River below Deadwood Reservoir, near Lowman, Idaho.................... 161

Deadwood River near Lowman, Idaho.............................................. 162

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

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

North Fork Payette River:

Payette Lake at McCall, Idaho.................................................. 165

North Fork Payette River at McCall, Idaho...................................... 166

Fish hatchery diversion at McCall, Idaho..................................... 167

Lake Fork Payette River above Jumbo Creek, near McCall, Idaho................ 168

Lake Fork Reservoir near McCall, Idaho....................................... 169

Lake Irrigation District Canal near McCall, Idaho.......................... 170

Lake Fork Payette River below Lake Irrigation District Canal, near McCall,

Idaho.................................................................. 171

Cascade Reservoir at Cascade, Idaho............................................ 172

North Fork Payette River at Cascade, Idaho..................................... 173

North Fork Payette River near Banks, Idaho..................................... 174

Payette River near Horseshoe Bend, Idaho ......................................... 175

Payette River near Emmett, Idaho................................................. 176

Payette River near Payette, Idaho................................................ 177

Weiser River basin:

Weiser River at Tamarack, Idaho.................................................. 178

West Fork Weiser River:

Lost Valley Reservoir near Tamarack, Idaho................................... 179

Lost Creek near Tamarack, Idaho.............................................. 180

Weiser River near Council, Idaho.........I ....................................... 181

Middle Fork Weiser River:

Mesa Orchards Canal near Mesa, Idaho......................................... 182

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

Pine Creek near Cambridge, Idaho............................................... 184

Little Weiser River near Indian Valley, Idaho.................................. 185

Weiser River above Crane Creek, near Weiser, Idaho............................... 186

Crane Creek Reservoir near Midvale, Idaho ...................................... 187

Crane Creek near Midvale, Idaho................................................ 188

Crane Creek at mouth, near Weiser, Idaho....................................... 189

Weiser Irrigation District Canal near Weiser, Idaho............................ 190

Mann Creek near Weiser, Idaho.................................................. 191

Snake River at Weiser, Idaho........................................................ 192

Burnt River basin:

Unity Reservoir near Unity, Oreg................................................. 193

Burnt River near Hereford, Oreg.................................................. 194

Powder River basin:

Fowder River- at Salisbury , Oreg.................................................. 195

Powder River near Haines, Oreg................................................... 196

Wolf Creek near North Powder, Oreg............................................. 197

Powder River near Robinette, Oreg................................................ 198

Snake River at Oxbow , Oreg......................................................... 199

Imnaha River basin:

Imnaha River above Gumboot Creek, Oreg........................................... 200

Imnaha River at Imnaha, Oreg..................................................... 201

Salmon River basin:

Salmon River near Obsidian, Idaho................................................ 202

Alturas Lake Creek near Obsidian, Idaho........................................ 203

Valley Creek at Stanley , Idaho................................................. 204

Salmon River below Valley Creek, at Stanley, Idaho ............................... 205

Salmon River below Yankee Fork, near Clayton, Idaho.............................. 206

Salmon River near Challis , Idaho................................................. 207
VIII CONTENTS

Gaging-station records Continued. 

Snake River Continued.

Salmon River basin Continued. Page 

Challis Creek near Challis, Idaho.............................................. 208

Pahsimeroi River near May, Idaho............................................... 209

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

Panther Creek near Shoup, Idaho................................................ 211

Salmon River near Shoup, Idaho................................................... 212

Middle Pork Salmon River near Cape Horn, Idaho................................. 213

Bear Valley Creek near Cape Horn, Idaho...................................... 214

Big Creek near Big Creek, Idaho.............................................. 215

South Pork Salmon River near Knox, Idaho....................................... 216

East Pork of South Fork Salmon River:

Johnson Creek at Yellow Pine, Idaho........................................ 217

Secesh River near Burgdorf, Idaho ............................................ 218

Salmon River near French Creek , Idaho............................................ 219

Little Salmon River:

Mud Creek near Tamarack, Idaho............................................... 220

Little Salmon River at Riggins, Idaho.......................................... 221

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

Grande Ronde River basin:

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

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

Catherine Creek near Union, Oreg............................................... 225

Wallowa River:

East Pork Wallowa River near Joseph, Oreg.................................... 226

Wallowa Palls powerplant tailrace near Joseph, Oreg........................ 227

Wallowa Lake near Joseph, Oreg............................................... 228

Wallowa River at Joseph, Oreg................................................... 229

Joseph powerplant tailrace at Joseph, Oreg................................... 230

Silver Lake Canal at Joseph, Oreg............................................ 231

Hurricane Creek near Joseph, Oreg............................................ 232

Lostine River near Lostine, Oreg............................................. 233

Bear Creek near Wallowa, Oreg................................................ 234

Grande Ronde River at Rondowa, Oreg.............................................. 235

Grande Ronde River at Troy, Oreg................................................. 236

Asotin Creek basin:

Asotin Greek near Asotin, Wash................................................... 237

Clearwater River basin:

Selway River (head of Clearwater River) near Lowell, Idaho....................... 238

Lochsa River near Lowell, Idaho................................................ 239

South Pork Clearwater River near Elk City, Idaho............................... 240

South Pork Clearwater River near Grangeville , Idaho............................ 241

Clearwater River at Kamiah, Idaho................................................ 242

North Pork Clearwater River at Bungalow ranger station, Idaho.................. 243

North Fork Clearwater River near Ahsahka, Idaho................................ 244

Potlatch Creek at Kendrick, Idaho.............................................. 245

Clearwater River at Spalding, Idaho.............................................. 246

Snake River near Clarkston, Wash................................................... 247

Palouse River basin:

Falouse River at Hooper, Wash.................................................... 248

Cow Creek at Hooper, Wash...................................................... 249

Miscellaneous discharge measurements ................................................. 250

Index................................................................................ 253

ILLUSTRATIONS

Page 

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

River near Murphy, Idaho; £T, Snake River near Clarkston, Wash. .......... 4

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

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

3. Comparison of discharge at two key gaging stations during 1951 water year

with median discharge for 25-year period................................ 12
SURFACE WATER SUPPLY OF SNAKE RIVER BASIN, 1951

SCOPE OF WORK

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

water year ending September 30, 1951. Since 1888, when the United States Geological 

Survey first studied streamflow in relation to problems of irrigation, similar measurements have been made at more than 12,400 gaging stations in the 48 States and at many 

others in the Territories of Alaska and Hawaii. On September 30, 1951, the Geological 

Survey and cooperating organizations were maintaining 6,730 gaging stations, including 

those in Alaska and Hawaii. Miscellaneous discharge measurements were made at many other 

points in the 1951 water year.

COOPERATION

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

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

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

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

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

Idaho State Fish and Game Commission, T. B. Murray, director; and Big Lost River 

Irrigation District.

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

Utah: Office of the State Engineer, J. M. Tracy.

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

director, succeeded by W. A. Galbraith, and C. J. Bartholet, supervisor of hydraulics.

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

Assistance in the form of funds or services was given by the Corps of Engineers, Department of the Army, in collecting records published herein for 18 gaging stations, of 

which 11 were in Idaho, 3 in Oregon, and 4 in Wyoming.

Assistance was also furnished by the Forest Service of the Department of Agriculture 

and the Office of Indian Affairs and the Bureau of Reclamation of the United States Department of the Interior.

The following organizations aided in collecting records:

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

36, North Side Canal Co., Twin Falls Canal Co., Utah Power & Light Co., Washington 

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

Boise, and Weiser Rivers, Lake Fork Payette River, and Mud Lake.

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

and Warmsprings Irrigation District.

Washington: Bot.neville Power Administration, Washington Water Power Co.

1
2 STJRFACE WATER SUPPLY, 1951, PART 13

DIVISION OP WORK

The stream gaging was done by the Water Resources Division of the Geological Survey, 

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

Water Branch. The data for stations in the several States were collected and prepared for 

publication under the supervision of the district engineers at the offices listed below. 

The records were reviewed and the manuscript prepared for publication under the direction 

of B. J. Peterson, chief, Annual Reports Section.

State District office Address

Idaho a/ .................... Boise....................... 429 Federal Building.

Idaho lv .................... Idaho Palls................. 204 Federal Building.

Nevada e/ ................... Salt Lake City, Utah........ 300 Federal Building.

Oregon &/ ................... Portland.................... 606 Post Office Building.

Washington.................. Tacoma...................... 207 Federal Building.

Wyoming e/ .................. Denver, Colo................ Denver Federal Center.

a/ Except stations on Snake River between Irwin and Milner, stations on tributaries of Snake River 

above American Palls Reservoir (but including Teton River near Victor, Teton Creek and Horseshoe 

Creek near Driggs), diversions from Snake River at and above Milner, and Clear Creek near Naf, but 

including Salmon Palls Creek above Upper vineyard ditch, near Contact, Nev., Salmon Palls Creek near 

Jacinto, Nev., Snake River at oxbow, Oreg., and Jordan Creek above Lone Tree Creek, near Jordan 

Valley, Oreg., Pacific Creek near Moran, Wyo., Buffalo Pork near Moran, Wyo., Gros Ventre River at 

Kelly, Wyo., and Hoback River near Jackson, Wyo.

b/ 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), diversions from Snake River at and above Milner, and Grassy Lake, Jackson Lake, and Snake 

River at Moran, Wyo.

c/ Except for Salmon Palls Creek above Upper Vineyard ditch, near Contact and near Jacinto, but 

including Clear Creek near Naf, Idaho.

d/ Except for Snake River at Oxbow and Jordan Creek above Lone Tree Creek, near Jordan Valley.

e/ Except for Pacific Creek near Moran, Buffalo Pork near Moran, Gros Ventre River at Kelly, 

Hoback River near Jackson, Grassy Lake, Jackson Lake, and Snake River at Moran.

Information of a more detailed nature than that published for most of the gaging stations given in this report is on file in the district offices listed above. Provisional 

records of discharge prior to publication, and other unpublished data concerning the 

gaging station records may usually be obtained from the district office.

DEFINITION OP TERMS AND ABBREVIATIONS

The terms of strearaflow and other hydrologic data, as used in this report, are defined 

as follows:

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

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

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

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

is distributed uniformly in time and area.

Runoff in Inches is the depth to which an area would be covered if all the water draining from it in a given period were uniformly distributed on its surface. The term is used 

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

Acre-foot is the quantity of water required to cover an acre to the depth of 1 foot and 

is equivalent to 43,560 cubic feet. The term is commonly used in relation to storage for 

irrigation.

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

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

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

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

flowing in a channel, expressed as volume per unit of time.
EXPLANATION OF DATA 3

Control designates a feature downstream from the gage that determines the stage-discharge relation at the gage. This feature may be a natural constriction of the channel, 

a long reach of the channel, or an artificial structure.

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

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

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

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

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

within the area unless otherwise noted.

NEW DOWNSTREAM ORDER OF LISTING GAGING STATIONS

Beginning with the series of reports for the water year ending September 30, 1951, the 

order of listing gaging-station records has been changed. In this report, in a downstream 

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

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

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

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

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

represents one rank. This new downstream order and system of indention show which gaging 

stations are on tributaries between any two stations on a main stem and the rank of the 

tributary on which each gaging station is situated.

The order of listing used before the publication of the 1951 report listed first all 

stations on the main stem from headwaters toward mouth, then all stations on the uppermost tributary to the main stem from the tributary's source to mouth, and then all stations from source to mouth of the uppermost tributary to the tributary.

EXPLANATION OF DATA

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

of discharge. In addition, observations of factors affecting the stage-discharge relation, weather records, and other information are used to supplement base data in determining the daily flow. The records of stage are obtained either from direct readings on 

a nonrecordlng gage or from a water-stage recorder that gives a continuous record of fluctuations. Measurements of discharge are made with a current meter by the general methods 

adopted by the Geological Survey on the basis of experience in stream gaging since 1888. 

These methods are described in Water-Supply Paper 888 and are also outlined in standard 

textbooks on the measurement of stream discharge. Typical structures in use at gaging 

stations are shown in figure 1.

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

necessary to define the extremes of discharge, they are made on the basis of indirect 

measurements of peak discharge (such as slope-area or contracted-opening measurements, 

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

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

A, SNAKE RIVER AT KING HILL, IDAHO.

B, SNAKE RIVER NEAR MURPHY, IDAHO.

C, SNAKE RIVER NEAR CLARKSTON, WASH.

FIGURE ]. GAGING-STATTON STRUCTURES
EXPLANATION OP DATA 5

tables gives the daily mean discharge, from which the morfchly 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 ontrol, the daily mean discharge 

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

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

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

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

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

reservoirs, tributary streams, or other sources. This necessitates the use of the slope 

method in which the slope or fall in a reach of the stream is a factor in determining 

discharge. Information requisite for determining the slope >r fall is obtained by means 

of an auxiliary gage set at some distance from the base gage At some stations the stagedischarge relation is affected by changing stage. If so, 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 ttates and at some in the 

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

the winter, and it becomes impossible to compute the discharge ii 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 giv^n to the available information on temperature and precipitation, notes by gage observers and engineers, and comparable records of discharge for other stations in the samg or nearby basins. If the 

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

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

daily records is not changed.

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

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

runoff of the stream.

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

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

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

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

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

of Engineers unless otherwise noted. Under "Gage" are given the type of gage currently in 

use and the datum of the present gage above mean sea level, and a condensed history of the 

types of gages, locations, and datums of previous gages for which discharge records are 

generally equivalent to those at the present site. Under "Average Discharge" is given the 

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

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

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

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

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

crest stage obtained by use of a water-stage recorder, a crest-stage indicator, or a non-
6 SURFACE WiTER SUPPLY, 1951, PART 13

recording gage read at the time of tie crest. If the maximum gage height did not occur 

at the same time as the maximum discnarge, it is given separately. Information pertaining 

to the accuracy of the records and (onditions which affect the natural flow at the gaging 

station is given under "Remarks."

Previously published records of some stations have been found to be in error on the 

basis of data or information later obtained. Revisions of such records are usually published along with the current reco:ds in one of the annual reports. In order to make it 

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

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

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

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

number, "W" means water-supply >aper. In listing the water years only one number is 

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

1933. If no daily, monthly, or annual figures of discharge are concerned in the revision, 

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

only the instantaneous maximur 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 r<port in which the revised figure was first published is given. 

It should be noted that for all stations for which cubic feet per second per square mile 

and runoff, in inches, are published, a revision of the drainage area necessitates corresponding revision of all figures based on the drainage area. Revised figures of cubic feet 

per second per square mile and runoff, in inches, resulting from a revision of the drainage 

area only are usually not published in the annual series of reports.

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

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

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

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

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

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

the discharge for parts of ;he 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 cirve representing the stage-discharge relation at the station. 

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

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

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

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

from gage-height graph? based on gage readings, the frequency of which is stated in the 

station description.

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

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

day of its occurreice.
ACCURACY OF FIELD DATA AND COMPUTED RESULTS V

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

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

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

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

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

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

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

usually less than 20 inches.

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

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

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

most stations are listed below the table of daily and monthly discharge. All independent 

peaks above the selected base are given. The base discharge, which is given in parentheses, is selected so that an average of about three peaks a year will be presented. 

Peak discharges are not published for canals, ditches, drains, or for any stream for which 

the peaks are subject to substantial control by man.

Footnotes to the table of daily discharge indicate periods when discharge was computed 

or estimated by unusual or special methods during periods of no gage-height record and ice 

effect, or by other effects that reduce the degree of accuracy of the records. Days on 

which discharge measurements were made are indicated by asterisk and footnote unless they 

were made at frequent regular intervals, in which instance the general frequency of discharge measurements is given under "Remarks" in the station description.

For most gaging stations on lakes and reservoirs the data presented comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs 

a table showing dai]y contents or stage is given. A skeleton table of capacity at given 

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

but it is omitted from succeeding reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of streamflow data depends primarily on (1) the stability of the stagedischarge relation or, if the control is unstable, the frequency of discharge measurements, 

and (2) the accuracy of observations of stage, measurements of discharge, and interpretation of records.

The station description states the degree of accuracy of the records. "Excellent" indicates that, in general, the error in the daily records is believed to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and "poor," probably 

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

in general, more nearly accurate than the daily records.

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

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

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

cubic feet per second per square mile and runoff, in inches, are not published unless 

storage or diversion records are included to indicate the extent of the regulation or di-
8 SURFACE WATER SUPPLY, 1951, PART 13

version, or unless satisfactory adjustments can be made for changes in contents of reservoirs or for other changes incident to use and control. Evaporation from a reservoir is 

not included in the adjustments for changes in reservoir contents, unless it is so stated. 

Even at those stations where adjustments are made, j.arge errors in computed runoff may 

occur when relatively large negative adjustments are made or when evaporation is large in 

comparison with the observed discharge.

Many gaging stations on streams in the irrigated areas of the United States are situated above most of the diversions from those streams, and therefore the discharge recorded 

does not actually show the water supply available at the stations for further development, 

because water must first be supplied to existing irrigation systems.

PUBLICATIONS

To facilitate publication of the annual series of reports, the area of the United 

States is divided into 14 parts whose boundaries coincide with certain natural drainage 

lines. Formerly, the results of streamflow measurements were published in 14 volumes, one 

for each of the 14 parts. Beginning with the reports for 1951, the records are published 

in 18 volumes, there being 2 volumes each for Parts 1, 2, 3, and 6. The boundaries of the 

various parts are indicated by the following list and the map in figure 2.

Part 1. North Atlantic slope basins, in two volumes:

A, North Atlantic slope basins, Maine to Connecticut. 

B, North Atlantic slope basins, New York to York River.

2. South Atlantic slope and eastern Gulf of Mexico basins, in two volumes: 

A, South Atlantic slope basins, James River to Savannah River. 

B, South Atlantic slope and eastern Gulf of Mexico basins, Ogeechee River 

to Pearl River.

3. Ohio River basin-, in two volumes:

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

B, Cumberland and Tennessee River basins.

4. St. Lawrence River basin.

5. Hudson Bay and upper Mississippi River basins.

6. Missouri River basin, in two volumes:

A, Missouri River basin above Sioux City, Iowa. 

B, Missouri River basin below Sioux City, Iowa.

7. Lower Mississippi River basin.

8. Western Gulf of Mexico basins.

9. Colorado River basin.

10. The Great Basin.

11. Pacific slope basins in California.

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

13. Snake River basin.

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

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

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

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

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

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

Geological Survey, Washington, D. C.

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

the United States.

3. Sets are available for consultation in the offices of the Water Resources Division 

of the Geological Survey. Addresses of the offices in the area covered by this report are 

given on page 2.

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

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

been included for some streams.
PUBLICATIONS
10 SURFACE WATER SUPPLY, 1951, PART 13

Streamflow data for the years 1884-1901, in reports of the Geological Survey 

(A « Annual Report; B = Bulletin; W = Water-Supply Paper)

Report

10th A, pt. 2 

llth A, pt. 2

16th A, pt. 2 

B 140........

W 11........ .

18th A, pt. 4

19th A, pt. 4 

W 27 .........

W 35 to 39. . .

W 47 to 52. . . 

22d A, pt. 4.

W 65, 66. ....

W 75.. .......

Character of data

Descriptive information only. 

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

Descriptive information only. 

Descriptions, measurements, gage heights, ratings, and 

monthly discharge.

Descriptions, measurements, ratings, and monthly discharge..

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

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

Descriptions, measurements, ratings, and monthly discharge.

the Mississippi River, and Missouri River and tributaries.

the Mississippi River, except Missouri River and tributaries.

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

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

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

Year

1884 to September 1890. 

1884 to June 30, 1891.

1895.

1895-96.

1897.

1899.

1900. 

1900.

1S01.

Reports on surface-water supply containing records from 1899 to date for drainage basins in this report are listed below. The data for any particular gaging station will, 

in general, be found in the reports covering the years during which the station was maintained.

Numbers of water-supply papers containing results of stream measurements in Snake River basin,

1899-1951

Year

18S9

1900

1901

1902

1903

1904

1905

1906

1907-8

1909

1910

U.S. P.

38

51

66, 75

85

100

135

178

214

252

272

292

Year

1911

1912

1913

1914

1915

1916

1917

1918

1919-20

1921

W.S.P.

312

332-B

36 2 -B

393

413

443

463

483

513

533

Year

1922

1923

1924

1925

1926

1927

1928

1929

1930

1931

W.S.P.

553

573

593

613

633

653

673

693

708

723

Year

1932

1933

1934

1935

1936

1937

1938

1939

1940

1941

W.S.P.

738

753

768

793

813

833

863

883

903

933

Year

1942

1943

1944

1945

1946

1947

1948

1949

1950

1951

W.S.P.

963

983

1013

1043

1063

1093

1123

1153

1183

1217

The records at most of the stations discussed in these reports extend over many 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 are listed in the same order as the 

streams and gaging stations in the body of the report. An index of the records obtained 

before 1904 has been published in Water-Supply Paper 119.

Each of the reports on the surface-water supply for the year 1939 (Water-Supply Paper 

883 for the Snake River basin) contains, for the area included in that report, a summary 

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

been collected. These summaries were reprinted separately.

Reports also 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 may have been revised), as well as some records not contained in the 

annual series of water-supply papers. The following table contains a list of these reports for the area covered by this report.
RECORDS OP DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 11

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

Water-supply 

Paper

670. ........

Period

1919-35

Report

Summary of records of surface waters of Washington.

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 for the area covered by this report.

State reports containing compilations of records of discharge

State

Do ........

Do. .......

Washington. ..

Period

1878-1914

1914-24 

1924-30 

1930-36 

1936-41 

1689-1905 

1906-10 

1911-16 

1876-1933

Report

Bull. 4,

Bull. 7, 

Bull. 8. 

Bull. 9, 

Bull. 10 

5th bien 

7th blen 

10th Lie 

Bull. 5, 

metric

Water resources

Water resources 

Water resources 

Water resources 

, Water resource

of 

of 

of

Monthly and yearly 

data.

the

the 

the 

the 

f th

State

State 

State 

State 

e State

summaries

of

of 

of 

of

of

Oregon. .

Oregon. . 

Oregon. . 

Oregon . . 

Oregon.

hydroIssued by

Office of the State Engineer. 

Do. 

Do. 

Do. 

Do. 

Do. 

Do. 

Do. 

Department of Conservation and Development.

Note. In addition to the records contained In the reports listed above, the States of Idaho, Nevada, Oregon, Washington, and Wyoming have issued annual or biennial reports in which are contained 

records of discharge.

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

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

stage and discharge of many streams during major floods has been included in special reports on these floods published by the Geological Survey. The more recent of these special reports also contain other pertinent hydrologic information and analyses and compilations of data relating to earlier notable floods. The following list gives the numbers 

and titles of these reports:

Water-Supply Title Paper

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

847......... Maximum discharges at stream-measurement stations through September 1938.

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

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The table below contains a list of gaging stations for the area covered by this report, 

at which records of discharge were collected during the water year October 1950 to September 1951 by agencies other than the Geological Survey. The records of these stations 

are not contained in publications of the Geological Survey, nor have they been published 

elsewhere.

Records of discharge collected by agencies other than the Geological Survey

Stream

American Falls Reservoir, inflow to.

Burnt River, South Fork

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

Malheur River. .........

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

Snake River tributaries

Teton basin tributaries

Location

Near American Falls, Idaho......

SW£ sec. 14, T. 15 S., R. 36 E. ,

above Whlted Reservoir, 3i

miles west of Unity, Colo.

NW-s- sec. 13, T. 13 S., R. 36 E. ,

200 ft below Whited Reservoir,

2j miles west of Unity, Colo.

SW£ sec. 32, T. 20 S., R. 41 E.,

near Namorf, Oreg.

below Nevada Dam, near Vale,

Oreg,

Near Irwin, Idaho. ..............

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

Period

1927-28,

1932-51

1951

1951

1931-Slt

1936-42,

1944-50t

1940-51*

1934-51*

Collected by

Idaho Water District

Oregon State enginee

Do.

Do.

Do.

Idaho Water District

Do.

36.

r .

36.

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

* Fragmentary.

Note. Of the records for the stations operated by the Oregon State engineer, those for 1925-30 

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

1936) In Bulletin 9; those for 1937-41 In Bulletin 10; those for 1942-51 have not been published. 

Records for the stations operated by Idaho Water District 36 are published in the annual reports cT
12 SURFACE WATER SUPPLY, 1951, PART 13

HYDROLOGIC CONDITIONS

The water year 1951 was characterized by well above normal runoff over most of the area 

covered by this report. Local flooding occurred during February, July, and August. For 

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

annual mean discharges during the 1951 water year with the median discharge for the 25-year 

period 1921-45 is shown in figure 3 below.

20,000

15,000

Snake River near Heise, Idaho 

Drainage area, 5,740 sq mi.

 § 10,000

5000

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

year

50,OOQ

40,000

30,000

Salmon River at Whitebird, Idaho 

Drainage area, 13,550 sq mi.

 S 20,000

10,000

Oct. Nov. June July Aug. Sept. The 

year

Dec. Jan. Feb. Mar. Apr. May

Explanation

Median of monthly mean discharge for 25-year period 1921-45. 

Monthly mean discharge during water year 1951.

Figure 3.--Comparison of discharge at two key gaging stations during 1951 water year with 

median discharge for 25-year period.
GAGING-STATION RECORDS

SNAKE RIVER MAIN STEM

Jackson Lake at Moran, Wyo.

Location. Lat 43°51', long. 110°35', in sec. 18, T. 45 N., R. 114 W., near left end of 

spillway over dam on Snake River at Moran.

Drainage area.--824 sq mi (revised).

Records available.--July 1908 to September 1951 (1908-10 fragmentary).

Gage. Electric tape gage read once daily. Datum of gage is at mean sea level (levels by 

Bureau of Reclamation). Frior to June 1941, staff gage at site 300 ft upstream at same 

datum.

Extremes.--Maximum contents during year 852,610 acre-ft June 27 (elevation, 6,769.22 ft); 

minimum, 410,120 acre-ft Apr. 11, 12 (elevation, 6,750.77 ft).

1908-51: Maximum contents, 857,220 acre-ft June 23, 1937 (elevation, 6,769.40 ft); 

no usable contents on several days during period August to October 1919.

Remarks.--Reservoir was formed by log crib dam in 1906 with a usable capacity of 300,000 

acre-ft. 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-ft. The earth dam was raised in 1916 

increasing the usable capacity to 790,000 acre-ft. In 1917, by dredging the outlet, the 

capacity was further increased to 847,000 acre-ft between elevations 6,730 ft (top of 

baffles to sluicea) and 6,769 ft (top of spillway gates). Water is used for irrigation 

in Snake River Valley, Idaho. Contents as given herein are for 8 a. m.; all available 

for release.

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

Contents, In acre-feet, water year October 1950 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.

571,330

572,040

572,980

573,690

575,100

576,750

578,170

579,360

580,540

581,490

582,630

584,100

585,290

586,480

587,660

589,030

590,930

591,930

592,890

593,830

594,730

595,960

596,670

597,620

598,570

599,760

601,190

602,380

603,810

605,720

606,920

Nov.

608,110

610,740

611,460

612,410

613,610

614,800

615,760

618,380

619,340

620,290

621,010

621,730

622,200

623,160

624,128

624,840

626,760

629,650

631,570

632,770

635,900

637,340

638,300

639,020

639,990

640,710

641,670

642,630

643,350

644,560

-

Dec.

646,000

648,650

650,100

652,040

653,250

653,970

655,430

656,640

657,120

657,610

658,330

658,580

658,820

658,820

659,060

659,060

658,820

658,820

658,820

658,820

658,820

658,820

658,820

658,820

658,580

 Jan.

658,090

658,090

658,090

658,090

658,090

657,850

658,090

658,330

658,330

658,330

658,580

658,580

658,580

658,580

658,820

658,820

659,060

659,300

659,540

660,030

660,270

660,750

660,750

660,510

659,540

658, 580 1658, 330

Feb.

647,200

645,040

642,630

643,600

645,040

643,840

643,110

643,110

641,670

639,510

636,860

634,220

631,330

628,680

625,800

623,160

620,530

617,910

615,520

613,370

Mar.

593,590

590,980

588,610

586,240

584,340

581,970

578,650

574,160

569,680

564,500

561,440

554,840

549,210

543,830

538,680

534,000

528,860

523,980

519,330

514,450

611,930|509,340

610,740 504,240

608,590

605,720

603,340

600,950

658,330 656, 400 '598, 810

499,630

494,550

489,700

484,390

479,800

658, 330 | 654, 700 5y6 , 200 1 474 , 990

658,330 652,760 - 470,180

658,3301*51,070 - 464,910

658,330|F49,130 - ,459,640

Apr.

453,960

448,050

442,140

436,690

431,720

426,540

421,120

416,160

411,460

410,790

410,120

410,120

410,340

410,790

411,680

412,580

413,250

414,360

415,710

417,520

419,540

520,670

422,250

423,600

425,410

426,990

430,370

434,210

436,010

439,180

-

May

441,910

443,730

445,550

447,360

449,410

453,500

458,050

462,850

467,660

472,240

477,510

484,850

492,010

497,780

502,630

508,180

515,150

524,680

535,170

544,060

553,900

567,330

578,170

595,250

609,550

622,680

639,990

652,760

673,840

691,880

706,090

June

717,380

726,750

733,920

739,360

741,090

741,830

743,070

743,560

744,310

744,550

745,540

748,030

753,760

762,720

770,940

781,720

791,750

800,050

805,610

816,980

828,400

838,830

848,250

849,530

850,560

852,100

852,610

852,100

852,100

851,580

-

July

849,530

850,300

850,560

851,580

852,100

851,330

850,820

849,530

849,530

851,580

852,100

852,100

851,070

850,820

850,300

849,280

848,510

848,250

847,230

845,950

844,680

843,410

841,880

839,340

836,540

833,740

829,920

827,120

825,850

824,580

823,310

Aug.

821,780

820,770

819,000

818,750

820,260

820,260

817,990

816,470

814,200

812,180

809,900

807,630

805,110

801,820

798,790

796,010

791,250

786,230

778,210

771,690

765,960

761,720

758,980

756,490

756,240

756,000

755,250

751,510

750,020

748,030

745,540

Sept.

742,580

739,360

736,150

732,690

730,210

726,750

722,550

715,910

709,280

703,390

697,740

692,620

687,980

683,840

680,670

679,450

677,980

674,570

669,960

666,080

660,750

656,150

651,310

647,680

642,870

639,270

635,180

631,090

627,240

622,680

-

Monthly elevations and contents, water year October 1950 to September 1951

Date

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

Calendar year 1950 ...........

Apr . 30 ........................

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

Water year 1950-51 ...........

Elevation 

(feet)

6,759.27

6,760.84

6,761.41

-

6,752.96

6,752.06

6,759,93

Contents 

(acre-feet)

606,920

644,560

658,330

-

459,640

439,180

823,310

622,680

Change In contents 

during month 

(acre-feet)

+36,530

+37,640

+13,770

+303,150

-9,200

-52,930

-136,560

-20,460

+266,910

+145,490

-28,270

-122,860 

+52,290
14 SNAKE RIVER MAIN STEM

Snake River at Moran, Wyo.

Location.--Lat 43°51', long. 110°35', In sec. 18, T. 45 N., H. 114 W., on left bank at 

Moran and 1,000 ft downstream from Jackson Lake Dam.

Drainage area.--824 sq ml (revised).

Records available --September 1903 to September 1951. Prior to 1911 published as South 

Fork of Snake River at Moran.

Gage. Water-stage recorder. Datum of gage is 6,725.61 ft above mean sea level (Bureau of 

Reclamation benchmark). Prior to July 26, 1915, staff gage at datura 4.0J ft lower, 

July 26, 1915, to June 13, 1917, staff gage at datum 5.00 ft lower, and June 14, 1917, 

to May 20, 1940, water-stage recorder at datum 5.00 ft lower; all at site I 1- miles 

downstream.

Average discharge.--48 years, 1,417 cfs.

Extremes.--Maximum discharge during year^ 5,860 cfs Aug. 20 (gage height, 7.76 ft); minimum daily, 34 cfs Oct. 4 to Dec. ig

1903-51: Maximum discharge, 15,100 cfs June 12, 1918 (gage height, 10.41 ft, site 

and datum then in use); minimum (revised), 2 cfs Nov. 21, 1944, to Apr. 14, 1945.

Flood during early June 1894 probably considerably higher than that of June 12, 1918.

Remarks.--Records excellent. Flow regulated by Jackson Lake (see preceding page). 

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

Rating table, water year 1950-51 (gage height, in feet, and 

discharge, in cubic feet per second)

1.3 

1.6 

2.0 

2.5

28

70

168

345

3.0 

3.5 

4.0 

5.0

580

860

1,210

2,110

6.0 

7.0 

8.0

3,250

4,C70 

6,300

Discharge, In cubic feet per second, water year October 1550 to September 19bi

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

35

35

35

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

1,057

34.1

2,100

Nov.

34

34

34

34

34

34

34

34

34

34

Dec.

34

34

34

34

34

34

34

34

34

34

34! 179

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

-

1,020

34.0

2,020

324

320

320

440

560

555

555

560

560

560

560

560

560

560

560

*560

5bO

560

555

555

10,863

350

21,550

Jan.

555

555

555

555

555

555

555

555

555

555

555

555

560

560

560

560

560

560

560

560

560

1,000

1,570

,350

,350

,350

,340

,340

,340

,340

,340

24,820

801

49,230

Feb.

1,330

1,330

1,330

1,330

1,330

1,330

1,330

1,330

1,720

2.050

2,030

2,030

2,030

2,030

2,030

2,020

2,020

2,020

1,700

1.160

1,160

1,160

1,440

2,000

2,000

2,000

2,000

2,000

-

-

-

47,220

1,686

93,660

Mar.

2.000

2,000

2,000

2,000

2.000

2,310

2,530

3,090

3,430

3,420

3,410

3,410

3,390

3,380

3,380

3,370

3,340

3,330

3,320

3,300

3,280

3,260

3,250

3,220

3,200

3,180

3,170

5,460

*3,420

3,390

3,390

94,630

3,053

187,700

Apr.

3,370

3,350

3,330

3,320

3,320

3,300

3,280

3,260

1,960

1,040

713

480

476

476

476

476

466

471

471

471

476

476

480

485

485

485

495

545

515

525

-

39,473

1,316

78,290

May

510

500

505

510

510

510

505

510

505

510

510

510

505

510

495

495

500

500

500

500

505

596

602

602

630

646

652

662

668

701

756

17,120

552

33,960

June

737

784

789

2,100

3,050

3,060

3,060

3,060

3,050

3,050

3,060

3,070

2,500

2,220

2,270

3,080

4,310

4,640

2,060

275

273

276

*2,850

3,810

3,330

3,750

4,640

4,360

4,550

4,720

"

82,812

2,760

164,300

July

4,100

3,590

3,600

3,670

4,250

4,260

4,190

3,460

2,200

1,900

2,630

3,OCO

2,620

2,920

3,170

3,130

2,920

2,930

3,010

3,210

3,100

2,880

3,000

3,340

3,59O

3,770

3,940

3,920

3,610

2,890

2,380

101,240

3,266

200,800

Aug.

2,330

2,320

2,300

1,920

1,630

2,650

2,540

2,530

2,520

2,510

2,510

2,500

2,860

2,500

2,500

3,020

*4,420

4,490

4.670

4,310

3,720

3,290

2,860

1,850

1,500

1,300

1,990

2,250

2,250

2,240

2,240

82,320

2,655

163,300

Sept.

2,570

2,310

2,300

2,300

2,510

3,050

3,750

4,400

4,020

4,010

3,680

3,250

2,650

2,240

1,550

1,550

2,090

3,020

3,020

3,010

3,000

2,980

2,950

2,820

2,710

2,700

2,700

2,840

2,830

2,830

"

85,640

2,855

169,900

Calendar year 1950: Max 7,910 Mln 4 Mean 1,237 Ac-i't 8i,5,900

Water year 1950-51: Max 4,720 Mln 34 Mean 1,612 Ac-ft 1,167,000

* Discharge measurement made on this day.

Note. Computed from staff-gage readings Oct. 1 to June 3.
PACIFIC CREEK BASIN 15

Pacific Creek near Moran, Wyo.

Location. Lat 43°51 I 00", long. 110°31'20", in sec. 23, T. 45 N., R. 114 W., on left 

bank 50 ft downstream from bridge on U. S. Highway 287, 0.5 mile upstream from mouth, 

and 3 miles southeast of Moran.

Drainage area. 160 sq mi.

Records available. July to November 1906 (gage heights only), July 1917 to September 

1918 (no winter record), September 1944 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,720 ft (from topographic map). July 

31 to Nov. 11, 1906, staff gage at site 0.4 mile downstream at different datum. July 

20, 1917, to Sept. 30, 1918, staff gage at site 0.1 mile downstream at different datum.

Average discharge. 7 years (1944-51), 274 cfs.

Extremes. Maximum discharge during year, 2,260 cfs May 28 (gage height, 5.60 ft); minlmum observed, 29 cfs Mar. 3 (discharge measurement), but may have been less during 

period of ice effect; minimum gage height, 1.81 ft Sept. 27.

1917-18, 1944-51: Maximum discharge observed, 3,030 cfs June 15, 1918 (gage height, 

3.98 ft, former site and datum); minimum observed, that of Mar. 3, 1951.

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

which are poor. No diversion or regulation.

Rating tables, water year 1950-51, except periods of Ice effect 

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

Oct. 1 to May 28 May 29 to Sept. 30

2.1 

2.4 

2.7 

3.0

3.5

74

119

191

297

572

4.0 920

4.5 1,310

5.0 1,720

5.5 2,170

1.8 

2.0 

2.3 

2.6 

3.0

59

92

160

250

390

3.5 540

4.0 960

4.5 1,340

5.1 1,840

Discharge, In cubic feet per second, water year October 1950 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 

 total

Mean

Cf sm

In.

Ac-ft

Oct.

loo 

101

106

108

112

134

119

117

123

127

123

127

127

125

127

130

119

112

106

105

*101

100

98

95

98

98

100

100

105

105

106

3,454

111

0.694

0.80

6,850

Nov.

103 

106

92

103

100

101

103

105

88

.§2

84

88

92

95

92

95

98

92

94

103

103

101

98

94

95

90

89

90 

94

95

2,865

95.5

0.597

0.67

5,680

Dec.

95

95

90

85

82

83

84

*86

89

90

92

92

92

88

82

80

75

75

78

82

85

85

80

78

76

75

72

72 

78

85

82

2,583

83.3

0.521

0.60

5,120

Jan.

78 

75

80

85

75

70

65

65

68

68

70

70

75

75

75

76

78

78

72

66

65

66

67

*68

70

70

70

70 

65

60

58

2,193

70.7

0.442

0.51

4,350

Feb.

55 

60

65

65

66

66

66

66

66

66

64

60

54

48

46

48

50

_

_

-

1,561

55.8

0.349

0.36

3,100

Mar.

(*)

, 50

52

58

55

60

70

70

70

60 

60

70

75

1,700

54.8

0.342

0.40

3,370

Apr.

80 

75

80

80

90

100

103

106

112

112

110

112

125

140

142

150

175

*219

250

261

257

232

236

240

257

306

352

387 

465

465

-

5,819

194

1.21

1.35

11,540

May

425 

387

382

435

566

745

815

787

801

843

969

1,180

1,100

983

990

1,210

1,340

*1,500

1,470

1,410

1,450

1,530

1,610

1,670

1,690

1,680

1,790

2.120 

1,840

1,740

1,640

37,093

1,197

7.48

8.62

73,570

June

1,400 

1,240

1,120

1,070

1,050

1,050

1,120

1,100

1,040

1,100

,230

,320

,490

,500

* ,570

1.690

1,660

1,540

1,460

1,410

1,340

1,230

1,110

1,060

1,030

982

939

939 

904

858

-

36,552

1,218

7.61

8.50

72,500

July

838 

818

799

825

825

792

748

712

646

596

568

515

476

466

448

430

404

378

346

343

336

301

271

*244

238

226

235

241 

354

300

260

14,979

483

3.02

3.48

29,710

Aug.

230 

240

300

336

304

290

270

260

250

220

214

195

178

169

166

155

145

142

135

138

135

152

163

160

158

*138

130

130 

130

125

120

5,878

190

1.19

1.37

11,660

Sept.

m105

100

95

95

90

87

85

83

87

94

90

85

79

76

76

72

72

70

68

70

71

66

66

66

65

65 

64

64

-

2,431

81.0

0.506

0.57

4,820

Calendar year 1950: Max 2,43O Mln - Mean 301 Cfsm 1.88 In. 25.52 Ac-ft 217,800

Water year 195O-51: Max 2,120 Mln - Mean 321 Cfsra 2.O1 In. 27.23 Ac-ft 232, 3oO

Peak discharge (base, 1.50O cfs).--May 28 (10 p.m.) 2,26o cfs (5.60 ft); June 17 (12:30 a.m.) 

1,850 cfs (5.11 ft). 

* Discharge measurement made on this day.

Note . Stage-discharge relation affected by ice Nov. 9, 10, 13, 15, 16, Nov. 24 to Apr. 5. No 

gage-height record Jan. 10-12, 23, Mar. 12-16, 24-30, July 30 to Aug. 3, Aug. 6-9, 12, Aug. 28 to 

Sept. 1, Sept. 3-8; discharge estimated on basis of weather records and records for stations on 

nearby streams.
16 BUFFALO FORK BASIN

Buffalo Fork near Moran, Wyo.

Location. Lat 43°50', long. 110°31', in sec. 26, T. 45 N., R. 114 W., on right bank 

30 ft below highway bridge, half a mile upstream from mouth, 2% miles downstream from 

Lava Creek, and 4 miles southeast of Moran.

Drainage area.--378 sq mi.

Records available. July to November 1906 (gage heights only), July 1917 to September 

1918 (no winter records), September 1944 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 6,720 ft (from topographic map). 

Average discharge.--? years (1944-51), 621 cfs.

Extremes.--Maximum discharge during year, 4,210 cfs June 17 (gage height, 5.45 ft); minimum, 96 cfs Nov. 10 (gage height, 0.79 ft), but may have been less during period of 

ice effect

1917-18, 1944-51: Maximum discharge observed, 5,840 cfs June 13, 1918 (gage 

height, 6.78 ft, datum then in use), from discharge measurement; minimum recorded, 

86 cfs Dec. 17, 1946 (gage height, 0.95 ft), but may have been less during periods 

of ice effect.

Remarks.--Records good except those for periods of ice effect, which are fair. No diversion or regulation.

Rating table, water year 1950-51, except periods of Ice effect ( 

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

0.9 

1.1 

1.5 

2.0

122

177

317

543

2.5 

3.0 

4.0 

5.3

835

1,300

2,370

4,000

Discharge, In cubic feet per second, water year October 1950 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

Octal

Mean

Cfsm

In.

Ae-ft

Oct.

302

294

313

333

345

399

341

341

386

382

370

395

395

382

391

382

353

337

321

313

*306

298

287

275

287

275

279

261

287

290

290

10,210

329

0.870

1.00

20,250

Nov.

272

275

233

283

272

275

268

261

183

127

137

257

294 2"65

247

206

223

250

240

240

254

250

229

229

226

233

209

187

187

209

-

7,071

236

0.624

0.70

14,030

Dec.

206

171

160

174

187

195

203

*219

220

225

225

230

230

210

200

200

200

200

200

200

200

190

180

180

175

170

170

170

170

170

170

6,000

194

0.513

0.59

11,900

Jan.

165

165

165

170

170

160

160

160

160

160

165

165

170

170

170

175

175

175

175

165

165

165

165

*165

170

170

170

160

150

135

150

5,085

164

0.434

0.50

10,090

Feb.

130

T35

150

160

170

170

170

170

170

170

170

165

160

160

160

160

160

160

160

160

150

150

150

150

150

150

150

150

_

-

4,410

158

0.418

0.43

8,750

Mar.

140

*140

150

150

150

150

150

150

150

140

135

130

150

160

T60

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

4,765

154

0.407

0.47

9,450

Apr.

160

TS3

160

170

180

190

200

210

220

220

230

240

280

333

321

302

333

*404

440

440

417

357

341

333

345

408

487

497

554

565

-

9,497

317

0.839

0.93

18,840

May

497

444

412

453

604

812

873

850

850

889

1,000

1,270

1,250

1,050

1,000

1,230

1,500

*1,910

2,030

1,940

1,950

2,200

2,530

2,830

2,710

2,610

2,830

3,360

5.640

3,230

2,840

51,599

1,664

4.40

5.08

102,300

June

2,380

1,990

1,720

1,550

1,490

1,450

1,470

1,360

1.260

1,320

1,580

1,790

2,170

2,500

*2,800

3,560

5.990

3,880

3,750

3,640

3,450

3,140

2,710

2,600

2,550

2,540

2,610

2,620

2,690

2,490

-

73,050

2,435

6.44

7.19

144,900

July

2,490

2,590

2,720

2,970

5.070

2,990

2,990

2,830

2,610

2,390

2,160

1,930

1,890

2,140

2,200

2,270

2,480

2,360

2,450

2,390

2,390

2,200

2,050

*1,880

1,780

1,720

1,640

1,570

1,990

1,820

1.550

70,510

2,275

6.02

6.94

139,900

Aug.

,500

,420

,380

,710

,720

,440

,250

,100

,080

913

873

858

820

776

727

695

682

670

645

628

604

657

734

701

695

*582

548

543

610

565

528

27,654

892

2.36

2.72

54,850

Sept.

502

478

454

449

440

430

430

412

408

395

408

435

408

408

386

370

361

357

357

349

349

345

341

333

325

321

317

313

313

509

-

11,503

383

1.01

1.13

22,820

Calendar year 1950: Max 3,840 Min - Mean 730 Cfsm 1.93 In. 26.21 Ac -ft 528,500

Water year 1950-51: Max 3,990 Mln 127 Mean 771 Cfsm 2.04 In. 27.68 Ae-ft 558,100

Peak discharge (base. 5.100 cfs). May 29 (5 a.m.) 3,870 cfs (5.20 ft); June 17 (11 a.m.) 4,210 cfs 

(5.45 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 9 to Apr. 13 (no gage-height record Jan. 2-4, 

8-12, Jan. 29 to Feb. 4, Mar. 12-16, 19-23, 29, 30, July 22, 23; discharge computed on basis of 

weather records and records for Gros Ventre River at Kelly and Hobaek River near Jackson).
GROS VENTRE RIVER BASIN 17 

Gros Ventre River at Kelly, Wyo.

Location.--Lat 43°37'20", long. 110°37'30", in NW^ sec. 11, T. 42 N., R. 115 W., on 

left bank at former bridge site on private road, 0.3 mile south of Kelly post office 

and 3 miles downstream from Turpin Creek.

Drainage area . 622 sq mi.

Records available .--June to September 1918, October 1944 to September 1951.

Gage.--Staff gage read once daily. Altitude of gage is 6,750 ft (from topographic map). 

June 16 to Sept. 30, 1918, staff gage at site 1 mile upstream at different datum. 

Oct. 1, 1944, to Aug. 8, 1949, wire-weight gage on bridge 25 ft downstream at present 

datum.

Average discharge.--7 years (1944-51), 498 cfs.

Extremes. Maximum discharge observed during year, 4,140 cfs May 29 (gage height, 7.09 

ft); minimum observed, 144 cfs Feb. 1 (gage height, 1.12 ft); minimum gage height 

observed, 1.10 ft Sept. 29, 30.

1918, 1944-51: Maximum discharge observed, 6,220 cfs June 16, 1918 (gage height, 

9.95 ft, site and datum then in use); minimum observed, 102 cfs Dec. 16, 1944; minimum gage height observed, 1.06 ft Feb. 2, 1950.

Flood of May 18, 1927, was considerably higher than flood of June 16, 1918 (landslide about 2 miles upstream washed out and released about 60,000 acre-ft of impounded 

water); discharge not determined.

Remarks.--Records fair. Diversions above and below station for irrigation. 

Revisions. W 1043: Drainage area.

Rating tables, water year 195O-51,(gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1 to Jan. 12, 

Hay 26-31)

Oct. 1 to Hay 31 June 1 to Sept. 30

1.2 

1.5 

Z.O 

Z.5 

3.0

144 

199 

3Z1 

500 

735

4.0 1,320

5.0 

6.0 

7.4

2,040

2,880

4,200

1.5

z.o

2.5 

3.0

351

492

678

927

4.0 1,550

5.0 

6.0 

6.9

2,310

3,190

4,090

Discharge, in cubic st per second, water year October 195O to September 1951

Day

1

2

6

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Zl

2Z

Z3

Z4

25

26

Z7

28

29

30

31

Total

Mean

Cfsm

In.

Ac -ft

Oct.

280

280

290

Z90

304

3Z4

358

348

339

345

342

34Z

342

348

574

368

348

336

318

307

296

*285

277

Z70

260

262

270

Z65

265

Z65

275

9,573

309

0.497

0.57

18,990

Nov.

277

265

260

245

255

Z55

245

Z55

241

218

193

189

197

210

Z18

218

Z14

222

Z2Z

Z18

ZZ7

232

232

2Z7

218

218

Z18

218

212

Z14

-

6,833

ZZ8

0.367

0.41

13,550

Dec.

218

218

Z14

205

197

187

191

*193

199

207

207

Z10

212

195

195

195

195

193

189

207

Z12

199

193

191

193

181

183

183

179

185

195

6,121

197

0.317

0.37

12,140

Jan.

185

185

195

193

197

185

170

168

175

179

175

179

181

185

189

193

197

197

187

179

174

183

179

183

*185

187

191

187

170

152

147

5,632

182

O.Z93

0.34

11,170

Feb.

144

154

165

179

195

195

195

195

195

193

195

191

183

175

174

172

172

183

181

168

175

179

170

174

177

175

172

165

_

-

-

4,991

178

0.286

0.30

9,900

Mar.

165

163

*165

179

175

175

174

172

174

165

152

147

168

181

172

175

175

160

168

168

174

177

177

183

193

179

181

172

175

175

179

5,338

172

0.277

0.32

10,590

Apr.

193

170

T85

187

197

210

220

234

245

253

253

245

255

285

327

342

324

354

*432

504

517

471

420

398

413

428

459

517

602

694

10,334

344

0.553

0.62

20,500

May

612

509

432

409

467

694

877

866

794

821

900

1,200

,450

,290

,080

,220

* ,560

,830

2,100

2,150

2,190

2,430

2,650

3,010

3,320

3,320

3,370

3,550

4.140

3,740

3,550

56,531

1,824

2.93

3.38

112,100

June

2,960

2,510

2,060

1,900

1,680

1,580

1,540

1,540

1,470

1.400

1,510

1,680

2,020

2,550

2,870

*3,280

3,830

4.080

3,680

3,330

3,090

2,640

2,460

2,180

2,020

2,020

2,020

1,940

1,940

1,860

-

69,640

2,321

3.73

4.16

138,100

July

1,790

1,750

1,820

1,820

1.980

1,980

1,820

1,750

1,650

1,540

1,510

1,510

1,300

1,110

1,110

1,170

1,170

1,180

1,170

1,130

1,180

1,160

*1,060

961

905

873

863

863

972

1,250

1,130

41,477

1,338

2.15

2.48

82,270

Aug.

955

873

873

927

1,100

1.150

961

847

705

656

595

558

518

477

492

477

463

445

433

427

433

439

480

492

486

474

*442

420

422

422

427

18,848

608

0.977

1.13

37,380

Sept.

419

411

389

378

364

346

335

325

320

312

299

312

320

322

315

299

296

289

282

279

279

282

279

274

269

264

254

254

249

249

-

9,265

309

0.497

0.55

18,380

Calendar year 1950: Max 3,510 

Water year 1950-51: Max 4,140

Min 

Min

118

144

606

670

Cfsm 0.974 In. 13.23 Ac-ft 438,800 

Cfsm 1.08 In. 14.63 Ac-ft 485,100

Discharge measurement made on this day.
18 HOBACK RIVER BASIN

Hoback River near Jackson, Wyo.

Location. Lat 43°17'55", long. 110 0 40'10", in sec. 32, T. 39 N., R. 115 W., on right 

bank at Camp Creek Camp, a quarter of a mile downstream from Willow Creek, 4 miles 

upstream from mouth, and 13| miles southeast of Jackson.

Drainage area. 564 sq mi.

Records available. July 1917 to September 1918 (published as "near Cheney"), November 

1944 to September 1951.

Gage. Staff gage read once daily. Altitude of gage is 6,040 ft (from topographic map). 

July 9, 1917, to Sept. 30, 1918, at site 3% miles downstream at different datum.

Average discharge. 6 years (1945-51), 747 cfs.

Extremes. Maximum discharge observed during year, 4,730 cfs May 29 (gage height, 6.45 

ft); minimum observed, 174 cfs Mar. 18 (gage height, 2.22 ft).

1917-18, 1944-51: Maximum discharge observed, 6,160 cfs June 16, 1918 (gage 

height, 13.46 ft, former site and datum); minimum observed, 90 cfs Dec. 18, 1946 

(gage height, 1.70 ft).

Remarks. Records fair. Small diversions above station for irrigation.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

2.2 

2.4 

2.7 

3.0 

3.5

168

235

391

600

1,000

4.0 

4.5 

5.0 

6.0 

6.5

1,460

1,980

2,550

3,980

4,830

Discharge, in cubic feet per second, water year October 195O 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

Tbtal

Mean

Cfsm

In.

Ac -ft

Oct.

398 

436

398 

379

379

385

379

367

398

379

379

367

410

398

379

385

367

356

344

*356

344

327

327

316

367

344

332

356

338 

373

356

11,419

368

0.652

0.75

22,650

Nov.

344 

332

338

344

338

327

350

398

290

290

276

316

327

322

3O6

296

306

316

316

327

311

296

285

266

276

266

b260

24O

248 

306

-

9,213

307

0.544

0.61

18,270

Dec.

Hi 

285

b290 

296

b280

b270

*b27O

b270

b270

b270

262

276

296

240

262

b250

b240

231

b240

b250

266

258

b240

228

231

220

209

228

248 

271

266

8,024

259

0.459

0.53

15,920

Jan.

248 

228

258 

266

258

183

b!80

b!80

b!80

b!80

192

224

228

248

262

258

266

276

262

240

216

198

*244

248

248

258

271

258

b230 

b210

b200

7,198

232

0.411

0.47

14,280

Feb.

b!90 

224

240 

240

253

266

248

266

253

266

271

258

209

195

192

202

216

228

235

2O2

216

209

224

248

240

228

228

177

-

6,424

229

0.406

0.42

12,740

Mar.

*202 

2 O2

198 

220

231

209

216

205

220

189

b!80

b!75

b!90

205

228

216

186

174

192

220

231

258

186

192

216

248

240

189

195 

244

258

6,515

210

0.372

0.43

12,920

Apr.

228 26~§

285

316

344

385

456

505

622

645

578

622

739

1,020

1,160

1,040

*1,18O

1,520

1,850

1,83O

1,740

1,330

1,340

1,580

1,440

1,680

1,820

2,010

2.370 

2,220

-

33,121

1,104

1.96

2.18

65,690

May

1,740 

1,430

1.240 

2,OOO

2,500

2,320

2,300

2,430

2,490

2,510

2,500

2,890

2,760

2,170

2,040

2,370

*2,660

3,130

3,240

3,160

,070

,440

,570

,030

,100

,700

,010

,610

.750 

4,200

4,010

91,350

2,947

5.23

6.02

181,200

June

3,240 

3,070

2,740 

2,450

2,320

2,170

2,110

2,010

1^880

1,920

2,O40

2,210

2,740

*3,26O

3,440

4,170

4.610

4,24O

3,930

3,730

3,540

3,300

2,890

2,67O

2,610

2,710

2,680

2,810

2,710 

 2,590

-

86,790

2,893

5.13

5.72

172,100

July

2,510 

2,490

2,570 

2,680

2.740

2,620

2,510

2,390

2,260

2,120

2,210

1,880

1,840

1,920

1,890

1,860

1,950

1,910

1,900

1,880

,950

* ,750

,570

,470

,430

,390

,360

.340

,530 

,470

,340

6 ,730

,959

3.47

4.00

120,500

Aug.

1,260 

1,390

1,280 

1,430

1^530

1,280

1,190

1,030

988

886

835

819

787

747

707

675

668

638

630

600

630

683

691

668

652

615

*578

548

593

6O8

548

26,184

845

1.50

1.73

51,940

Sept.

Mi 

512

491 

484

477

470

463

45O

450

417

456

477

456

443

417

404

379

373

373

362

373

373

362

356

367

356

350

356

373 

356

~

12,517

417

0.739

0.83

24,830

Calendar year 1950: Max 4,29O Min 158 Mean 921 Cfsm 1.63 In. 22.16 Ac-ft 666,600

Water year 1950-51: Max 4,730 Min 174 Mean 985 Cfsm 1.75 In. 23.69 Ac-ft 713,000

* Discharge measurement made on this day. 

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

Snake River below Greys River, at Alpine, Idaho

Location.--Lat 43°10'20", long. 111 0 02'30", in Sw£ sec. 19, T. 37 N., R. 118 W., sixth 

principal meridian, Wyoming, at State line bridge on U. S. Highway 89, a quarter of a 

mile south of Alpine, 1-J- miles upstream from Salt River, and 2 miles downstream from 

Greys River.

Drainage area. 3,940 sq mi.

Records available. October 1944 to September 1951.

Gage. Wire-weight gage read once daily. Datum of gage is 5,543.89 ft above mean sea 

level (levels by Bureau of Reclamation). Prior to Nov. 6, 1944, chain gage at datum 

4.29 ft lower.

Average discharge. 7 years, 5,456 cfs.

Extremes. Maximum discharge observed during year, 24,500 cfs June 18 (gage height, 9.71 

ft); minimum daily, 1,800 cfs Dec. 6; minimum gage height observed, 2.85 ft Dec. 5.

1944-51: Maximum discharge observed, 24,500 cfs July 2, 1950, June 18, 1951; maximum gage height observed, 9.71 ft June 18, 1951; minimum daily discharge, 1,050 cfs 

Jan. 25-31, 1949; minimum gage height observed, 2.29 ft Mar. 6, Apr. 3, 1945.

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

which are fair. Some regulation by Jackson Lake (see p. 13 ). Diversions for irrigation of about 91,000 acres above gage.

Rating table, water year 195O-51, except periods of ice effect (gage 

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

2.6 

3.0 

3.5 

4.0

1,650

2,300

3,200

4,210

5.0 

6.0 

8.0 

9.7

6,810

10,200

17,600

24,500

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

2,700

2,720

2,700

2,720

2,740

2,850 

2,830

2,790

2,810

2,810

2,830 

2,830

2,780

2,750

2,790

2,8iO 

2,780

2,700

2,670

*2,580

2,540

2,520

2,440

2,450

2,490

2,510

2,610

2,510

2,540 

2,580

2,490

82,880

2,674

164,400

Nov.

2,490

2,470

2,450

2,450

2,400

2,450 

2,540

2,850

2,810

2,130

2,200 

2,250

2,320

2,350

2,350

2,110 

2,270

2,300

2,300

2,370

2,540

2,470

2,370

2,300

2,250

2,230

2,220

2,200

2,180 

2,160

-

70,780

2,359

140,400

Dec.

2,330

2,220

b2,110

b2,100

al,950

bl,800 

*b 1,900

2,000

2,000

2,110

2,160 

b2,400

b2,450

2,450

2,380

2,420 

2,510

2,490

2,520

2,520

2,560

2,350

2,470

2,440

2,420

2,380

2,320

2,300

2,330 

2,370

2,440

71,200

2,297

141,200

Jan.

b2,200

bZ,200

b2,300

b2,300

b2,300

b2,150 

b2,000

b2,000

b2,200

b2,200

b2,200 

b2,200

b2,200

b2,300

2,380

2,420 

2,350

2,330

2,350

2,380

2,370

2,390

*2,S10

3 , 090

3 , 050

3,050

3,090

b2,900

b2,700 

b2,500

b2,600

75,310

2,429

149,400

Feb.

b2,600

b2,700

b2,800

b2,900

b2,900

b2,900 

3,050

3,070

3,070

3,730

b3 , 900 

b3,800

3,670

3,650

3,690

3,730 

3,650

3,590

3,550

2,970

b2,800

b2,800

b2,800

3,430

3,510

3,490

3,510

3,470

-

-

91,730

3,276

181,900

Mar.

*3.370

3,430

3,410

3,530

b3,600

3,410 

b3,600

3,920

4,250

4,320

4,660 

4,680

4,710

4,640

4,760

4,710 

4,610

4,590

4,610

4,710

4,660

4,510

4,610

4,590

4,640

4,640

4,680

4,710

4,760 

4,920

5,020

135,360

4,366

268,500

Apr.

5,020

5,080

5,200

5,310

5,490

5,940 

6,220

6,160

5,570

4,730

4,450 

4,570

4,950

5,380

5,540

5,180 

*5,490

6,250

6,930

6,780

6,570

5,780

5,700

5,640

5,640

6,140

5,840

7,310

7,560 

6,570

-

173,990

5,300

345,100

May

5,970

5,510

5,510

5,780

7,030

8,350 

9,240

9,420

8,760

8,900

9,940 

11,700

11,300

9,870

10,000

10,500 

*11,500

13,900

14,400

15,000

15,100

16,200

18,800

19,200

19,500

21,400

22,200

22,400

23,600

21^300

414,880

13,380

822,900

June

18,200

15,700

14,000

12,600

13,100

13,400 

13,500

13,700

13 , 500

13,100

13 , 100 

14,200

16,400

*17,100

18,600

20,800 

23,900

24,200

23,400

19,800

19,400

21,800

17,200

17,200

16,500

16,200

17,000

17,700

17,000 

16,600

-

508,900

16,960

*1,009

July

16,200

16,000

16,100

16,200

16,800

17,100

314^700

a 13, 500

a!3,000

a!3,000 

al4,500

al2,000

a!2,000

a!2,000

12,000 

11,700

11,700

11,800

12,000

12 , 100

*12,000

all, 500

all, 000

alO,500

alO,800

alO,900

all, 200

all, 500 

all, 300

9,870

400,770

12,930

794,900

Aug.

9,480

9,070

9,140

9,240

9,760

9,030 

8,560

8,320

8,050

7,820

7,720 

7,430

7,310

7,150

6,840

6,780 

8,280

8,420

7,880

8,280

7,650

7,850

7,650

5,890

5,860

5,590

*5,560

6,360

6,280 

5,970

5,860

234,880

7,577

465,900

Sept.

5,750

5,830

5,590

5,640

5,590

a5,800 

a6,200

a6,800

a7.200

a7,000

6,870 

6,930

5,540

a5,300

a4,700

4,230 

4,300

5,440

5,440

5,410

5,360

5,310

5,310

5,230

5,150

5,120

4,950

4,920

4,950 

5,050

-

166,910

5,564

331,100

Calendar year 1950 : Max 24,400 Mln 1,160 Mean 5,965 Ac-ft 4,318,000

Water year 1950-51: Max 24,200 Mln 1,800 Mean 6,651 Ac-ft 4,815,000

* Discharge measurement made on this day. 

t Expressed in thousands.

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

Irwin and weather records.

b Stage-discharge relation affected by ice.
^U SALT RIVER BASIN

Salt River near Smoot, Wyo.

Location. Lat 42°36'20", long. 110°55'10", in sec. 7, T. 30 N., R. 118 W., on left bank 

l£ miles south of Smoot, if miles upstream from Willow Creek, and 4 miles upstream from 

Cottonwood Creek.

Drainage area. 47.8 sq mi.

Records available.--June 1932 to September 1951 (no winter records 1933-35, 1936-37).

Gage. Water-stage recorder. Altitude of gage is 6,600 ft (from topographic map). Prior 

to Apr. 11, 1934, chain gage and Apr. 11 to Oct. 1, 1934, water-stage recorder at same 

site at datum 1.00 ft higher.

Average discharge.--15 years (1935-36, 1937-51), 37.9 cfs.

Extremes. Maximum discharge during year, 353 cfs May 29 (gage height, 3.15 ft); minimum 

not determined.

1932-51: Maximum discharge, 430 cfs May 15, 1936, from rating curve extended above 

200 cfs; no flow Jan. 25-28, 1949.

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

which are fair. Water rights totaling 58.21 cfs (priorities 1886 to 1939), for irrigation of about 3,980 acres, adjucated by Wyoming for diversion above station.

Revisions.--W 1123: Drainage area.

Rating tables, water year 1950-51, except periods of ice effect (gage height,

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

(Shifting-control method used Apr. IB to May 4)

Oct. I to Feb. 28

1.3

1.4

1.3 

1.5 

1.7

Mar. I to Sept. 30

2.2 

3.1

50

146

342

Discharge, in cubic feet per second, water year October 1950 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

ZZ

23

E4

E5

26

27

ZB

29

30

31

Total

Mean

Ac- ft

Oct.

14

14

14

14

14

14

14

14

14

14

13

13

13

13

13

*13

IE

12

IZ

IE

IZ

IZ

12

IZ

13

12

14

14

14

13

13

407

13.1

807

Nov.

13

14

*I3

13

13

13

12

12

12

13

14

14

13

IZ

IZ

13

13

14

12

IE

14

11

12

12

12

IE

12

12

IE

12

-

378

IE. 6

750

Dec.

(*)

IE

37E

12

738

Jan.

(*)

11

341

11

676

Feb.

(*)

12

_

_

-

336

IE

666

Mar.

13

*14

13

IE

13

13

13

14

15

13

11

12

14

15

14

14

13

13

14

15

17

15

15

17

18

16

15

14

16

20" 20

452

^14.6

,897

Apr.

19

18

IS

19

21

25

30

34

33

*3E

39

52

76

88

90

90

98

106

1EO

98

84

80

80

88

84

84

88

100

~9a 134

E.02G

67.5

4.0EO

May

84

82

*84

86

138

142

177

184

186

203

217

214

188

160

*146

152

16E

188

E10

E21

E25

E34

265

285

294

296

287

311

333

302

276

6,332

204

IE, 560

June

*E63 E30~

201

*186

168

158

158

152

148

150

154

154

162

177

190

EE5

245

E30

210

197

181

173

146

126

122

118

120

1EO

114

110

-

5,088

170

10,090

July

110

*11E

Tiff

110

110

104

102

100

98

9E

96

90

86

80

78

76

71

64

64

67

67

58

55

50

44

44

44

42

39

37

11

E.334

75.3

4,630

Aug.

33

39

36

39

36

33

3E

*32

31

30

E8

27

27

26

25

24

24

23

24

24

24

24

25

25

E4

24

E3

24

24

24

24

858

E7.7

1,700

Sept.

24

23

El

*21

El

21

EO

19

19

19

EO

EO

EO

19

19

19

19

19

19

18

18

19

18

18

18

17

IT

18

19

18

-

580

19.3

1,150

Calendar year 1950 : Max 349 Min 7.6 Mean 56.4 Ac -ft 40,810

Water year 1950-51 : Max 333 Min - Mean 53.4 Ac-ft 38,680

Peak discharge (base, 170 cfs).--May 11 (11 p.m.) 243 cfs (2.58 ft); May 29 (9 a.m.) 353 cfs 

(3.15 ft); June 17 (7 to 8 a.m.) 254 cfs (E.64 ft).

* Discharge measurement made on this day.

Note. Stage discharge relation affected by ice Nov. 7 to Mar. 31 (no gage-height record Dec. 5 tc 

Mar. I; discharge estimated on basis of Z discharge measurements, weather records, and records for 

nearby stations).
SALT RIVER BASIN 21

Cottonwood Creek near Smoot, Wyo.

Location.--Lat 42°36'40", long. 110°53'30", in sec. 4, T. 30 N., R. 118 W., on right bank 

0.3 mile upstream from headgate of highest diversion, l£ miles downstream from Porcupine Creek, lj miles southeast of Smoot, and 4? miles upstream from mouth.

Drainage area. 26.3 sq mi.

Records available.--October 1932 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,750 ft (from topographic map). Prior 

To Apr. 8, 1934, staff gage at site a quarter of a mile downstream at different datum.

Average discharge.--19 years, 43.7 ofs.

Extremes.--Maximum discharge during year, 399 cfs June 18 (gage height, 3.07 ft), from 

rating curve extended above 250 cfs; minimum, 9.7 cfs Jan. 22 (gage height, 1.08 ft).

1932-51: Maximum discharge, that of June 18, 1951; minimum, 6.4 cfs Mar. 11, 1948; 

minimum gage height, 0.95 ft Jan. 19, 1950.

Remarks.--Records good except those for periods of ice effect, which are fair. No diversion above station. Flow regulated by Cottonwood Lake.

Revisions (water years).~W 933: Drainage area. W 1153: 1933.

Rating table, water year 1950-51, except periods of ice effect (gage

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

(Shifting-control method used June 20 to July 2)

1.1 

1.4 

1.8 

2.2 

3.1

150

390

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

28

28

27

27

27

27

27

27

2626"

26

26

26

26

26

*26

26

26

26

26

26

26

26

26

26

26

27

26

27

26

26

818

26.4

1,620

Nov.

27

27

*26

26

26

26

26

27

26

25

25

25

25

?5

25

24

24

24

24

23.

23

23

23

23

23

23

23

23

23

23

-

736

24.5

1,460

Dec.

23

22

22

*23

23

23

23

22

22

21

21

21

21

21

21

20

20

20

20

19

19

19

19

19

19

18

18

18

18

18

18

631

20.4

1,250

Jan.

18

18

*18

18

18

19" 19

18

18

18

18

18

19

18

19

19

19

18

18

19

19

18

18

16IB18

18

18

b!7

b!6

b!6

559

18.0

1,110

Feb.

b!9

*b!8

18

18

18

18

18

17

14

21.

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

_

_

-

503

18.0

998

Mar.

*b!8

IS

18

18

18

18

18

18

18

18

18

18

17

16

IF

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

521

16.8

1,030

Apr.

IB- 17

19

21

23

25

26

29

30

*29

29

30

33

36

38

38

40

44

46

44

43

41

41

41

40

41

40

42

45

44

-

1,033

34.4

2,050

Hay

43

40

*40

41

45

51

60

62

62

63

70

76

76

72

*69

69

73

86

100

106

110

122

157

172

194

212

225

269

290

258

251

3,564

115

7,070

June

*248

214

186

*161

150

139

132

128

126

T30

137

150

170

199

232

271

312

363

3T2

292

279

277

253

232

225

225

219

2?5

227

219

-

6,433 '214

12,760

July

209

*2T56"

209

194

191

177

177

174

170

168

161

152

143

137

137

132

130

124

120

122

116

108

101

98

96

93

91

90

88

86

85_

4,285

138

8,500

Aug.

SB- 86

85

85

84

80

79

*76

75

72

69

68

66

66

65

63

63

62

62

62

61

61

60

60

58

57

56

56

55

55

5_4

2,087

67.3

4,140

Sept.

54

5T

50

50

*49

48

48

47

47

46

46

46

45

44

43

43

43

43

43

42

42

42

41

40

40

40

39

39

40

39

-

1,330

44.3

2,640

Calendar year 1950: Max 237 Min 11 Mean 53.2 Ac-ft 38,590

Water year 1950-51: Max 363 Min 14 Mean 61.6 Ac-ft 44,630

(3.07 Peak ft). discharge (base, 140 efs). May 28 (1:30 a.m.) 330 cfs (2.90 ft); June 18 (3:30 a.m.) 399 cfs 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
22 SALT RIVER BASIN

Swift Creek near Afton, Wyo.

Location. Lat 42°43'30", long. 110°54'00", in SE£ sec. 29, T. 32 N. , R. 118 W , on right 

bank 1 mile upstream from mouth of canyon and If miles east of Afton.

Drainage area. 27.4 sq mi.

Records available . May 1943 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 6,400 ft (from topographic map).

Average discharge. 8 years, 90.7 cfs.

Extremes.--Maximum discharge during year, 545 cfs May 28 (gage height, 3.41 ft), from 

rating curve extended above 360 cfs; minimum daily, 31 cfs Feb. 6.

1943-51: Maximum discharge, 560 cfs June 10, 1948, from rating curve extended above 

360 cfs; maximum gage height, that of May 28, 1951; minimum daily discharge, 28 cfs 

Apr. 3,4, 1945.

Remarks.--Records fair. Pipe line (adjudication, 2.5 cfs) diverts water above station for 

town of Afton. Diurnal fluctuation caused by small powerplant and reservoir (adjudication, 48.45 acre-ft per ye3fc) a quarter of a mile upstream. No diversion for irrigation 

above station.

Rating table, water year- 1950-51 (gage height, in feet,

and discharge, in cubic feet per1 second) 

(Shifting-control method used June 20 to July 29)

1.8

1.9 

2.1

2.5 

2.9 

3.3

150

300

490

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

58

57

56

57

56

54

54

52

56

56

52

52

52

*60

66_

66

66

64

64

62

62

58

64

62

64

62

60

62

62

58

57

1,831

59,1

3,630

Nov.

60 *5e

56

57

54

57

54

57

56

54

54

54

56

54

54

54

52

56

54

56

54

54

52

54

54

54

56

50

5?

54

-

1,641

54.7

3,250

Dec.

54

54

51

*58

56

52

54

52

51

52

52

48

52

50

51

50

48

51

50

46

50

45

44

45

46

44

46

44

44

46

42_

1,528

49.3

3,030

Jan.

44

41

*45

42

42

44

36

a37

a39

a42

a45

a43

a45

a47

50.

45

40

45

41

42

50

41

41

44

37

45

40

36

a35

a34

a33_

1,291

41.6

2,560

Feb.

*a33

a35

a37

a37

36

31

33

36

40

36

35

38

38

37

42

a38

a39

42

45

a40

*45

46

45

45

44

41

45

40

_

-

1,099

39.2

2,180

Mar.

*41

40

38

38

37

40

40

37

38

40

38

36

36

40

35

38

38

37

35

36

36

38

37

38

37

37

37

38

37

36

37

1,166

37.6

2,310

Apr.

38

37

37

40

44

46

50

51

*51

50

45

46

52

57

57

58

60

66

66

64

64

57

62

64

57

60

57

62

64

60

-

1,622

54.1

3,220

May

62

60

*58

58

68

72

82

82

86

86

102

115

113

109

*98

alOO

allO

al35

a 170

al80

a 190

a200

a240

a290

a330

a40O

a440

485 vrs

337

328

5,661

183

11,230

June

*287

260

222

*207

193

179

169

163

160

172

207

233

282

346

378

406

416

SIT

41]

383

341

328

296

265

248

260

269

300

305

291

-

8,364

279

16,590

July

296

*296

323

328 318-

314

305

296

282

269

248

229

229

226

229

226

222

214

234

233

214

189

176

169

169

166

160

160

160

156

150

7,166

231

14,210

Aug.

153

147

156

153

150

136

133

*128

122

118

115

113

113

109

109

104

102

100

102

96

96

96

98

90

88

86

84

84

86

86

82_

3,435

111

6,810

Sept.

80

W

78

80

*78

78

78

76

74

76

74

74

74

74

72

70

72

70

74

72

70

70

70

70

70

68

68

70

70

70

-

2,200

73.3

4,360

Calendar year 195O : Max 485 Mln 30 Mean 101 Ac-ft 73,36O

Water year 1950-51: Max 485 Mln 31 Mean 101 Ae-ft 73,380

Peak discharge (base, 590 cfs).--May 28 (6:30 a.m.) 545 cfs (3.41 ft); June 19 (l p.m.) 465 cfs 

(3.33 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather records, 

and records for nearby stations.
SALT RIVER BASIN 23

Salt River at Wyoming-Idaho State line

Location. Lat 4S°09'50", long. 111°03'50", In sec. 16, T. 3 S., R. 46 E., on left bank 

350 ft upstream from highway bridge, 400 ft downstream from Trout Creek, half a mile 

upstream from mouth, and three-quarters of a mile west of Wyoming-Idaho State line.

Drainage area. 890 sq ml.

Records available. April 1934 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 5,580 ft (from topographic map).

Average discharge. 17 years, 725 cfs.

Extremes.--Maximum discharge during year, 2,280 cfs May 12 (gage height, 3.84 ft); minimum 

daily, 429 cfs Mar. 18.

1934-51: Maximum discharge, 3,520 cfs May 6, 1936 (gage height, 4.64 ft), minimum, 

216 cfs May 17, 1934 (gage height, 1.30 ft); minimum daily, 220 cfs May 17, 1934.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are fair. Some diurnal fluctuation at low flow caused by many small powerplants on tributaries. Water rights totaling 960.63 cfs (priorities 1886 to 1942) for 

Irrigation of about 65,840 acres, 471.10 cfs (priorities 1889 to 1939) for industry and 

power, and 7.18 cfs (priorities 1887 to 1941) for domestic and municipal supply, adjudicated by Wyoming for diversion above station. Two small reservoirs above station in 

Wyoming for power and fish culture (total adjudication 52.22 acre-ft per year).

Rating table, water year 1950-51, except periods of ice effect (gage 

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

1.7 

2.0 

3.0 

3.9

420

575

1,350

2,350

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

9O6

878

857

836

829

836

829

808

SOS

801

787

780

773

773

787

*787

773

766

759

752

745

745

745

745

745

745

766

794

787

766

759

24,467

789

48,530

Nov.

759

*808

787

766

745

738

745

822

829

738

731

745

738

745

731

710

717

752

801

780

836

829

787

766

752

745

731

717

703

724

-

22,777

759

45,180

Dec.

724

703

696

710

*696

647

682

682

689

675

668

661

661

654

647

640

627

614

614

614

608

594

575

588

572

563

575

575

575

575

575

19,689

635

39,050

Jan.

557

*557

563

545

557

545

539

b520

b540

b550

545

533

533

527

527

533

533

533

533

533

521

527

527

521

521

515

521

515

485

3470

3450

16,376

528

32,480

Feb.

b440

b480

b520

b580

588

527

545

582

539

527

527

545

539

521

510

51O

510

505

495

490

490

485

480

485

480

475

480

475

_

_

-

14,33O

512

28,420

Mar.

*47O

475

47O

470

465

456

46O

456

452

452

434

434

452

442

442

447

442

429

442

434

442

480

475

470

475

485

485

480

470

475

490

14,251

460

28,270

Apr.

500

539

608

682

794

906

1,060

1,210

*1,340

1,400

1,380

1,430

1,630

1,94O

1,99O

1,850

1,880

1,990

2.150

2,090

1,980

1,800

1,720

1,720

1,810

1,850

1,970

2,070

2,060

2,030

-

46,379

1,546

91,990

May

1,900

1,790

1,690

*1.660

1,750

1,91O

2,030

2,090

2,O5O

2,06O

2,110

2.220

2,190

2,07O

*1,980

1,990

2,060

2,130

2,150

2,160

2,170

2,170

2,160

2,170

2,170

2,150

2,120

2,150

2,150

2,160

2,150

63,710

2,055

126,400

June

2,O70

*2.110

2,010

*1,920

1,850

1,730

1,640

1,550

1,440

1,380

1,310

1,3OO

1,360

1,320

1,280

1,260

1,300

1,370

1,35O

1,290

1,240

1,190

,220

,210

,170

,110

,060

,030

,O30

1.020

-

42,120

1,404

83,540

July

1,010

*1,020

1,O40

'1,050

1,030

1,080

1.120

1,060

1,010

1,010

1,OOO

1,02O

1,000

1,000

1,010

1,010

976

928

936

952

1,020

1,O60

1,080

1,070

1,070

1,O60

1,060

1,060

1,06O

1.06O

1,060

31,922

1,030

63,320

Aug.

1,070

1,070

1,06O

1.06O

1.05O

1,06O

1,O70

*1,070

1.08O

1,060

1,030

1,010

992

952

928

920

878

871

857

857

864

913

913

913

928

920

913

913

936

944

928

30,030

969

59,560

Sept.

928

920

906

*892

a885

aSSO

871

857

864

843

850

836

836

822

SOS

794

78O

773

773

759

752

752

745

731

724

710

3710

3710

3720

717

-

24,148

805

47,900

Calendar year 1950: Max 3,080 Min 400 Mean 1,025 Ac-ft 741,700

Water year 1950-51: Max 2,220 Min 429 Mean 959 Ac-ft 694,600

* Dischsrge measurement made on this day.

a No gage-height record; discharge estimated on basis of westher records snd records for nearby 

stations.

b Stage-discharge relation sffected by ice.
24 SNAKE RIVER MAIN STEM

Snake River near Irwin, Idaho

Location. Lat 43"21', long. 111°13', in NE£ sec. 7, T. 1 S., R. 45 E., on right bank 

2 miles upstream from Palisades Creek and 5 miles southeast of Irwin.

Drainage area. 5,225 sq rni (revised).

Records available.--April 1934 to October 1936, March 1939 to September 1941, May 1949 to 

September 1951. Published as "at Calamity Point, near Irwin" April to August 1934 and 

March 1939 to September 1941.

Gage.--Water-stage recorder. Datum of gage is 5,353.00 ft above mean sea level, datum of 

T929, supplementary adjustment of 1947. Apr. 21 to Aug. 4, 1934, and Mar. 30, 1939, 

to Sept. 30, 1941, water-stage recorder at site 2? miles upstream at different datum. 

Mar. 30, 1935, to Oct. 31, 1936, at site 3^ miles downstream at different datum. May 

1, 1949, to Mar. 22, 1950, staff gage 1,100 ft downstream at datum 1.9 ft higher.

Extremes.--Maximum discharge during year, 28,800 cfs May 29 (gage height, 12.69 ft); minimum, 2,370 cfs Jan. 8 (gage height, 5.11 ft).

1934-36, 1939-41, 1949-51: Maximum discharge, that of May 29, 1951; minimum daily 

determined, 1,590 cfs Feb. 3, 1950.

Flood during early June 1894 probably much higher than that of May 29, 1951.

Remarks. Records excellent. Flow partly regulated by Jackson Lake (see p. 13). About

93,000 acres in Wyoming and Idaho irrigated by diversions from tributaries above station.

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

Rating table, water year 1950-51 (gage height, In feet, 

and discharge. In cubic feet per second)

5.0 

5.5 

6.0 

7.0 

8.0

2,110

2,960

4,050

6,610

9,600

9.0

10.0

11.0

12.0

12.8

13,000

16,900

21,100

25,500

29,100

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

5.980

3,820

3,750

3,750

3,770

3,890

3,940

3,870

3,820

3,820

3,800

3,750

*3,750

3,750

3,770

3,820

3,750

3,640

3,550

3,520

3,480

3,440

3,390

3,550

3,390

3,570

5,440

5,520

3,590

5,500

5,410

115,590

5,658

224,900

Nov.

3,410

3,570

5,590

5,290

3,290

3,260

5,310

3,640

5,410

3,000

2,960

3,020

3,060

5,100

3,080

2.900

3,000

5,160

5,400

5,300

5,420

*5 , 520

5,570

5,200

5,120

3,060

3,000

2,940

2,900

5,000

-

96,080

5,205

190,600

Dec.

5,060

2,940

2,850

2,960

2,810

2,570

2,700

2,860

2,880

2,880

2,920

2,980

5,180

5,100

5,120

3,200

3, 550

5,240

5,240

3,260

*3,260

5,140

3,080

3,160

3,160

3,120

2,980

5,000

3,000

3,080

5,140

94,200

5,059

186,800

Jan.

2,940

2,810

2,920

3,020

5,040

2,920

2,660

2.540

2,750

2,850

2,900

2,920

2,880

2,960

3,040

3,020

5,020

2,980

2,920

2,850

2,850

3,040

*3,120

3,750

5.870

3,840

3,820

3,700

3,440

3,160

3,220

 95,730

3,088

189,900

Feb.

5,220

3,530

5,59O

5,680

5,820

5,800

5,870

4,070

4,000

4,510

4,940

4.990

4,750

4,530

4,480

4,530

4,550

4,550

4,480

4,170

*5,680

5,590

5,570

5,730

4,270

4,310

4,290

4,190

-

-

-

115,250

4,115

228,600

Mar.

4,150

4,220

4,190

4,240

4,340

4,190

4,430

4,700

5,200

5,430

5,350

5,350

5,460

5,400

5,450

5,510

5,550

5,220

5,550

5,550

5,450

5,720

5,550

5,460

5,460

*5,510

5,530

5,550

5,610

5,690

5,770

160,020

5,162

517,400

Apr.

5. 900

6,050

6,510

6,610

6,970

7,400

7,870

8,520

8,740

7,810

6,690

6,480

6,920

8,230

8,870

*8,290

8,590

9,650

10,700

10,700

10,100

8,950

8,580

8,440

8,500

9,120

9,860

10,800

11.400

11,200

-

255,810

8,460

505 , 400

May

9,950

8,870

8.170

8,550

9,500

11,400

12,500

12,400

12,200

12,600

13,400

14,900

15,200

*13,400

12,300

15,000

14,800

17,200

18,700

18,900

18,900

20,000

2J,500

23,300

24,000

23,500

24,000

26,300

28,700

27,500

*25,600

520,840

16,800

*1,055

June

22, 700

20,300

18,000

16,100

16,500

16,400

15 , 800

15,300

14,700

14,500

14,900

16,100

18,500

20,200

21,000

23,400

27,000

28,200

*27,500

24,100

21 , 500

20,500

18,700

19 , 800

19 , 500

19,000

19,100

19,800

19,500

19,500

-

587,500

19,580

+1,165

July

18.900

18,200

17,700

17,900

18,600

18,800

18,500

17,800

16,400

14,600

14,200

14,100

13,700

13,000

13,600

*13,800

15,800

15,600

15,300

13,600

14,000

13,200

12,500

12,000

11,900

12,000

12,000

12,200

12,700

15,100

11,900

451,400

14,560

895,300

Aug.

10,900

10,900

10,600

11,500

11,700

11,000

11,400

10,600

*10,200

9,790

9,440

9,150

8,960

9,060

8,530

8,350

8,770

9,700

9,760

9,820

9,660

9,220

9,380

8,870

7,960

7,030

6.920

7,140

7,750

7,600

7,400

289,060

9,525

573,300

Sept.

7,290

7,430

7,030

6,860

6,850

*6,950

7,400

8,020

8,440

8,140

8,080

7,930

7,550

6,860

6,480

5,720

5.610

5,950

6,690

6,670

6,670

6,640

6,610

6,500

6,340

6,180

*6,130

6,160

6,290

6,260

-

205,710

6,857

408,000

Calendar year 1950: Max 27,300 Mln 1,590 Mean 7,563 Ac-ft 5,475,000

Water year 1950-51: Max 28,700 Mln 2,540 Mean 8,173 Ac-ft 5,916,000

Discharge measurement made on this day. 

Expressed In thousands.
SNAKE RIVER MAIN STEM 25

Snake River near Helse, Idaho

Location. Lat 43°37', long. 111°40', in sec. 5, T. 3 N. , R. 41 E., on left bank about 500 

ft upstream from Anderson canal headgate, 3 miles upstream from Heise, 6 miles east of 

Ririe, and 23 miles upstream from Henrys Fork.

Drainage area.--5.752 sq mi (revised).

Records available September 1910 to September 1951. Prior to 1911, published as South 

Fork of Snake River near Heise.

Gage.--Water-stage recorder. Altitude of gage is 5,015 ft (from river-profile survey). 

Prior to July 8, 1913, staff gage and July 9, 1913, to Sept. 29, 1922, water-stage recorder at present site at datum 2.65 ft higher. Sept. 30, 1922, to Oct. 5, 1933, waterstage recorder at present site at datum 2.0 ft higher than present datum.

Average discharge. 41 years, 6,815 cfs.

Extremes.--Maximum discharge during year, 30,400 cfs May 29, 30 (gage height, 9.11 ft); minimum, 2,970 cfs Jan. 8 (gage height, 2.11 ft).

1910-51: Maximum discharge, about 60,000 cfs May 19, 1927, result of washing out-of 

landslide on Gros Ventre River (gage height, about 16.0 ft, present datum); minimum, 

1,210 cfs Jan. 22, 1935 (gage height, 1.15 ft).

Flood during early June 1894 probably as great as flood of May 19, 1927.

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

partly regulated by Jackson Lake (see p. 13 ). Station is above all irrigation diversions from main river except Riley ditch (5,060 acre-ft diverted during year) vihich diverts 1 mile upstream from station. About 106,000 acres in Wyoming and Idaho irrigated 

by diversions from tributaries above station.

Rating table, water year 1950-51, except periods of ice effect (gage

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

(Shifting-control method used Feb. 10-28, June 27 to Sept. 30)

2.0 

2.5 

3.0 

4.0 

5.0

2,660

3,580

4,680

7,210

10,400

6.0 

7.0 

8.0 

9.0

14,400

19,100

24,200

30,000

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

4.660 

4,430

4,320

4,300 

4,300

4,340

4,380

4,360

4,320

4,270

4,230

4,210

4,190

4,120

4,160

4,230

4,160

4,080

3,990

3,940

3,900

3,860

3,810

5.770 

3,770

*3,790

3,330

3,990

3,930

0,940

3,900

127,540

4,114

253,000

Mov.

3,880 

3,970

3,970

3,810 

3,770

3,770

3,790

3,920

4.100

3,500

5.380

3,460

3,500

3,540

3,580

3,440

3,440

3,620

3,830

3,730

3,880

*4,050

3,860

3,730 

3,580

3,540

3,480

3,440

3,400

3,460

-

110,420

3,681

219,000

Dec.

3,560 

3,500

3,400

3,440 

3,400

5.270

3,280

3,270

3,280

3,300

3,320

3,360

3,500

3,640

3,500

3,580

3.710

3,680

3,640

3,660

*3,680

3,600

3,460

3,500 

3,540

3,500

3,460

3,560

3,500

3,500

3,600

108,190

3,490

214,600

Jan.

b3,400 

b3,350

b3,400

3,460 

3,460

3,320

3,150

5,120

3,230

3,360

3,360

3,380

3,320

3,340

3,380

3,400

3,340

3,420

3,340

3,300

3,360

3,440

*3,340

3,880 

4.160

4,160

4,100

4,030

b3,800

b3,500

b3,520

108,120

3,488

214,500

Feb.

b5.540 

b3,700

b3,950

b4,050 

b4,150

b4,150

b4,250

b4,420

b4,400

4,520

5,260

5.410

5,210

4,970

4,870

4,900

4,850

4,870

4,850

4,750

*4,160

4,050

3,940

3,970 

4,520

4,630

4,630

4,610

_

_

-

125,580

4,485

249,100

Mar.

4.520 

4,560

4,590

4,630 

4,700

4,590

4,560

5,020

5,180

5,760

5,710

5,760

5,840

5,780

5,760

5,860

5,740

5,580

5,610

5,660

5,810

5,960

5,880

5,740 

5,710

*5,780

5,810

5,810

5,880

5,910

5.960

169,660

5,473

336,500

Apr.

6.140 

6,240

6,520

6,890 

7,240

7,690

8,080

8,640

9,050

8,860

7,290

7,050

7,270

8,540

9,490

*9,050

9,120

10,100

11,300

11,900

11,300

10,100

9,250

9,050 

9,220

9,800

10,600

11,900

12,500

12.800

-

272,980

9,099

541,400

May

11,300 

10,000

9,150

9,020 

10,100

12,400

13,800

13,900

13,600

13,900

14,800

16,100

17,000

* 15, 300

13,700

13,900

15,700

18,100

20,000

20,300

20 , 200

20,700

22,200

24,100 

25,300

24,700

24,600

26,900

29.700

29,300

*27,300

557,070

17,970

1A05POO

June

24,300 

21,400

19,000

16,900 

16,400

16,800

16,200

15 , 900

15,200

14.800

15,000

16,100

18,300

20,300

21,100

23,100

26,500

28 . 900

*28,700

25,700

21,800

20,600

19,300

19,500 

20,100

19,200

19,300

20,100

19,800

19,500

-

599,800

19,990

1,190,000

July

19,200 

18,600

18,100

18,200 

18,800

19.400

19,100

18,700

17,500

15,700

14,700

14,700

14 , 400

13,500

14,000

*14,200

14,200

14,000

13,600

13,800

14,500

13,900

12,900

12.300 

12,300

12,400

12,400

12,800

13,100

13,800

12,800

467,600

15,080

927,500

Aug.

11,500 

11,500

11,200

12,000

11,900

11,800

11,200

10,800

*10,300

9,860

9,520

9,220

9,280

8,830

8,610

8,610

9,830

9,940

10,100

10,000

9,760

9,690

9,690 

8,760

7,610

7.410

7,430

8,050

8,170

8,020

303,290

9,784

601,600

Sept.

7,870 

,900

,580

,430 

,320

* ,290

,660

,990

8.920

8,480

8,450

8,450

7,990

7,410

7,080

6,260

6.060

6,060

7,020

7,080

7,020

7,020

6,970

6,890 

6,760

6,630

*6,520

6,470

6,550

6,580

-

217,710

7,257

431,800

Calendar year 1950: Max 28,300 Mln 1,850 Mean 8,143 Ac-ft 5,895,000

Water year 1950-51: Max 29,700 Mln 3,120 Mean 8,679 Ac-ft 6,284,000

* Discharge measurement made on this day. 

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

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

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

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

irrigation season from 1919 to 1951. 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 cubic feet per second, May 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

Total

Mean

Ac- ft

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

786

802

846

983

1,300

1,710

1,860

1,860

2,170

2,190

2,310

2,350

2,270

2,350

2,700

2,920

3,440

3,790

4,380

4,760

5,310

6,140

6,700

7,120

7,220

7.340

7,180

7,150

7,340

7,140

7,230

121,647

3,924

241,300

June

,380

,440

,140

.080

,350

,660

,910

,820

,850

,820

8,150

8,520

8,650

8,410

8,460

8,910

8,980

9,240

9,470

9.510

9,340

9,440

8,920

8,290

8,380

8,370

8,640

8,690

8,670

8,580

-

251,070

8,369

498,000

July

8,520

8,820

8,730

8,710

9,100

9,530

9,450

9,340

9,670

9,570

9,290

9,350

9,340

9,290

9,350

9,500

9,670

9,630

9.740

9,670

9,610

9,350

9,520

9,140

9,520

9,590

9,640

9,550

8.350

8,380

8,350

287,280

9,267

569,800

Aug.

8.390

8,230

8,280

6,110

4,680

4,640

4,560

4,630

4.4OO

4,590

4,630

5,370

6,25O

6,810

7,280

7,510

7,760

7,870

7,700

7,760

7,280

7,080

6,430

5,890

4,960

4,670

5,300

5,120

4,790

4,590

4,520

188,080

6,067

373,100

Sept.

4.550

4,640

5,300

5,330

5,720

6,260

6,470

6,500

6.680

6,620

6,500

6,330

6,160

6,020

5,940

5,660

5,500

5,540

5,810

5,990

5,990

5,910

5,790

5,660

5,460

5,220

5,200

5,180

5,120

5,120

-

172,170

5,739

341,500

Calendar year : Max Mln Mean Ac -ft

The season : Max - Mln - Mean - Ao-ft 2,O24,OOO
HENRYS FORK BASIN 27

Henry Fork near Lake, Idaho

Location. Lat 44°36' , long. 111°21', in SW£ sec. 26, T. 15 N., R. 43 E., on left bank a 

quarter of a mile downstream from Henrys Lake Dam and 4 miles south of Lake.

Drainage area. 98 sq mi, approximately, including 6 sq mi of Dry Creek basin. 

Records available. May 1920 to September 1951.

Gage. Water-stage recorder. Datum of gage is 6,450.62 ft above mean sea level, levels by 

Bureau of Reclamation (Corps of Engineers benchmark). Prior to September 1922, staff 

gage at site 3 miles downstream and below mouth of Dry Creek.

Average discharge. 31 years, 47.8 cfs.

Extremes. Maximum discharge during year, 186 cfs July 7; maximum gage height, 2.39 ft 

Aug. 10; minimum daily, 14 cfs Oct. 10, 11, 14, leakage through reservoir gates.

1920-51: Maximum discharge, 907 cfs June 13, 1926 (gage height, 5.40 ft); minimum, 

0.1 cfs Oct. 3-31, 1937.

Outflow from Henrys Lake was reported to have ceased entirely late in summer of 1889.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Flow regulated by Henry Lake (see p. 44 ). Since 1923 floodwaters of Dry Creek have 

been diverted at times into Henrys Lake (none diverted in 1951).

Discharge, In cubic feet per second, water year October 195O 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

Total

Mean

Ao-ft

Oct.

15

15

15

15

15

15

15

15

*15

14

14

15

15

14

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

462

14.9

916

Nov.

15

15

15

15

15

16

16

16

16

*16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

475

15.8

942

Dec.

18

'

558

18

1,110

Jan.

20

620

20

1,230

Feb.

(*)

30

_

-

840

30

1,670

Mar.

32

992

32

1,970

Apr.

33

33

33

*33

33

34

34

35

35

36

36

36

37

4O

40

40

40

41

43

43

43

43

43

42

41

41

42

44

44

46

-

1,164

38.8

2,310

May

46

46

47

47

47

47

*48

51

52

52

51

51

55

60

63

57

57

62

64

66

65

62

63

65

68

66

72

73

*80

83

84

1,850

59.7

3,67O

June

86

80

21

73

78

8O

85

90

90

89

86

89

102

103

1O7

111

115

115

113

119

115

1O8

108

108

110

1O4

*111

112

1079'6

-

2,963

98.8

5,880

July

96

95

89

88

86

84

86

82

82

80

85

84

85

82

80

78

78

76

76

80

83

80

78

88

*111

1O6

1O3

113

123

127

137

2,821

91.0

5,6OO

Aug.

133

131

130

137

131

129

124

*124

120

119

119

111

110

108

104

103

102

100

99

94

90

89

89

88

86

84

*84

88

88

88

86

3,288

106

6,520

Sept.

85

85

8O

77

77

76

74

74

72

*72

74

70

70

73

68

68

70

68

67

71

60

*58

58

58

58

58

59

60

60

6O

-

2,O60

68.7

4,090

Calendar year 1950: Max 292 Mln - Mean 36.2 Ac-ft 26,240

Water year 1950-51: Max 137 Min - Mean 49.6 Ac-ft 35,910

* Discharge measurement made on this day.

N_;£. No gage-height record Nov. 11 to Apr. 3; discharge estimated on basis of 1 discharge measurement, weather records, and records for other streams In the basin.
28

HENRYS FORK BASIN

Island Park Reservoir near Island Park, Idaho

Location. Lat 44°25', long. 111°24', a quarter of a mile south of quarter corner between 

sees. 28 and 29, T.,.13 N., R. 43 E., in gatehouse shaft at dam on Henrys Fork, a quarter of a mile upstream from Buffalo River, and 2 miles west of Island Park.

Drainage area. 481 sq mi (revised).

Records available.--November 1938 to September 1951.

Gage.--Electric tape gage read once daily. Datum of gage is at mean sea level (levels by 

Eureau of Reclamation).

Extremes.--Maximum contents during year, 136,175 acre-ft May 24-31 (elevation, 6,303.12 ft), 

minimum, 86,175 acre-ft Sept. 30 (elevation, 6,296.10 ft).

1938-51: Maximum contents, 137,805 acre-ft June 8, 1945 (elevation, 6,303.32 ft); 

minimum after first filling of reservoir in May 1939, 16,855 acre-ft Sept. 27, 1940 

(elevation, 6,274.22 ft).

Remarks. Reservoir is formed by earth-fill, rock-faced dam. 

Capacity, 127,265 i acre-ft between elevations,

Storage began Nov. 15, 1938.

 . - .---..-.- -__._-_-- , _,239 ft (normal low-water level with 

outlet gates open) and 6,302 ft (crest of spillway). Natural flow passing through reservoir when outlet gates are open prevents withdrawal of storage to elevation 6,230 ft 

(sill of lower outlet). Dead storage negligible. Water is used for irrigation of 

lands in Fremont-Madison irrigation district between Ashton and Rexburg. Contents given 

herein are for 8 a.m.; all available for release.

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

Contents, in acre-feet, water year October 195O 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.

87,905

88,090

88,090

88,280

88,280

88,405

88,655

88,905

88,905

88,965

89,030

89,090

89,280

89,280

89,470

89,660

89,280

88,905

89,280

89,215

88,905

88,715

88,530

88,340

88,215

88,090

87,905

88,215

88,340

88,215

88,215

Nov.

88,215

88,215

88,090

88,030

87,905

87,78O

87,660

87,780

87,780

87,780

87,780

87,285

87,285

87,410

87,660

88,655

89,660

90,730

92,000

92,710

93,480

94,455

95,105

95,695

96,950

97,875

98,810

99,480

100,355

101,440

-

Dec.

102,050

102,390

102,730

103,005

103,280

103,560

103,905

104,385

104,800

105,150

105,430

105,705

105,915

106,125

106,475

106,965

107,245

107,525

107,810

108,090

108,375

108,660

108,945

109,230

109,585

109,870

110,155

110,440

110,730

111,090

111,520

Jan.

111,810

112,095

112,530

112,820

113,255

113,550

113,840

114,060

114,350

114,645

114,935

115,300

115,520

115,745

115,965

116,260

116,705

117,075

117,370

117,295

117,220

117,150

117,150

117,075

117,075

117,220

117,150

117,000

116,925

116,780

116,630

Feb.

116,555

116,555

116,555

116,850

117,000

116,925

116,925

117,075

117,075

117,075

117,075

117,075

116,925

116,850

116,780

116,705

116,630

116,630

116,555

116,555

116,555

116,480

116,410

116,260

116,555

116,555

116,555

116,555

_

_

-

Mar.

116,555

116,480

116,410

116,480

116,555

116,555

116,555

116,555

116,555

116,480

116,410

116,335

116,260

116,185

116,040

116,040

116,040

116,040

115,965

115,890

115,670

115,595

115,520

115,520

115,520

115,520

115,375

115,300

115,230

115,080

115,010

Apr.

114,865

114,790

114,715

114,645

114,645

114,645

114,790

115,010

115,155

115,230

115,450

115,595

115,890

116,185

116,410

116,705

117,150

117,670

118,190

118,635

119,235

120,215

T20,820

121,575

122,185

122,870

123,475

124,550

126,020

127,421

-

May

128,830

129,300

129,775

130,170

130,640

131,195

132,150

133,270

133,670

133,830

133,830

134,800

135,770

136,015

135,770

135,610

135,120

134,880

135,365

135,770

135,935

136,015

136,015

136,175

136,175

136,175

136,175

136,175

136,175

136,175

136,175

June

136,015

135,690

135,450

135,365

135,530

135,530

135,530

135,450

135,450

135,365

135,205

135,205

135,690

135,770

135,690

135,530

135,530

135,450

135,205

134,800

134,800

134,640

134,800

134,720

134,555

134,555

134,475

134,395

134,235

134,235

-

July

134,075

133,990

133,990

133,990

133,670

133,590

133,590

133,510

133,350

133,350

132,870

132,630

132,390

132,070

131,590

13O,96O

130,405

129,065

12"7,890

127,030

125,865

124,395

123,095

122,030

120,970

119,835

118,710

118,415

117,815

117,150

116,410

Aug.

115,890

115,745

115,520

115,815

115,815

115,745

115,520

115,230

114,935

114,865

114,570

114,280

114,060

113,915

113,695

113,255

112,600

111,880

111,090

110,085

109,155

107,880

107,595

107,740

107,740

107,525

107,315

107,105

106,895

106,895

106,685

Sept.

106,335

105,985

105,705

105,360

105,080

104,800

104,455

103,695

103,075

102,595

101,710

101,235

100,625

100,015

99,345

98,740

98,205

97,O8O

96,355

95,235

94,250

93,355

92,450

91,555

90,605

89,660

88,780

87,905

87,100

86,175

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

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

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

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

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

Water year 1950-51 . ..........

Elevation 

(feet)

6,296.34

6,299.40

6,300.60

6,300.59

6,300.38

6,302.88

6,300.57

6,296.10

-

Contents 

(acre-feet)

87,660

88,215

101,440

111,520

116,630

116,555

115,010

127,421

136,175

134,235

116,410

106,685

86,175

-

Change in contents 

during month 

(acre-feet)

.

+555

+13,225

+10,080

+42,445

+5,110

-75

-1,545

+12,411

+8,754

-1,940

-17,825

-9,725

-20,510

-1,485
HENRYS FORK BASIN 29

Henrys Fork near Island Park, Idaho

Location. Lat 44°25' , long. 111° 24', in SW£ sec. 28, T. 13 N., R. 43 E., on left bank an 

eolith of a mile upstream from Buffalo River, an eighth of a mile downstream from Island Park Dam, and 2 miles west of Island Park.

Drainage area.- -481 sq mi (revised).

Records available. --January 1933 to September 1951.

Gage. --Water- stage recorder- Altitude of gage is 6,225 ft (from river-profile map). 

Prior to May 15, 1935, staff gage at site three-quarters of a mile upstream at different datum. May 15 to Nov. 30, 1935, water-stage recorder at site 1,000 ft downstream.

Average discharge. 18 years, 519 efs.

Extremes. --Maximum discharge during year, 1,260 efs July 20; maximum gage height, 4.29 ft 

Aug. 20-22; minimum daily, 10 efs Nov. 16-29.

1933-51: Maximum discharge, 2,770 efs Apr. 26, 1946 (gage height, 6.15 ft); minimum daily, 1 efs Nov. 16 to Dee. 7, 1938.

Remarks. --Records good. Flow regulated by Henrys Lake (see p. 44) and Island Park Reservoir (see preceding page).

Cooperation. --Gage-height record and one discharge measurement furnished by Bureau of 

Reclamation.

Discharge, In cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Oct.

418

418

418

418

418

418

418

418

*418

418

418

418

404

400

472

533

533

533

538

538

538 

538

538

538

538

538

538

538

538

538

543

14,890

480

29,530

Nov.

543

543

543

543

548

548

548

548

548

*495

414

414

414

414

128

10

10 10 

10

10

10 

10

10

10

10

10

10

10

10

188-

7,519

251

14,910

Dec.

295

295

295

295

295

295

295

295

295

295

295

295

*295

295

295

295

295

295 

295

295

295 

295

295

295

295

295

295

295

295

295

295

9,145

295

18,140

Jan.

299

2S9

299

299

299

303

303

303

303

303

308

308

308

308

308

308

308

308

393

436

436 

436

436

436

436

440

440

440

440

440

440

11,123

359

22,060

Feb.

445

445

445

445

445

445

445

445

*445

445

445

445

445

445

445

445

450

450 

450

450

450 

450

450

450

450

450

450

450

_

-

-

12,520

447

24,830

Mar.

450

450

450

450

450

450

450

450

450

450

450

450

450

450

450

450

450

450 

450

450

450 

450

450

450

450

450

454

454

454

454

458

13,974

451

27,720

Apr.

458

458

458

*458

458

458

458

458

458

458

463

463

463

463

463

463

463

463 

463

463

463 

463

463

463

463

463

463

463

463

481

-

13,858

462

27,490

May

533

562

596

635

704

782

*895

992

1,060

1,070

808

782

900

1,100

1,130

1,180

1,040

880 

865

915

935 

976

992

1,020

1,000

976

971

992

*961

940

930

28,142

908

55,820

June

900

865

865

836

846

860

865

880

885

856

821

836

885

900

890

890

865

841 

826

777

767 

767

767

753

723

728

*713

694

R74

664

-

24,439

815

48,470

July

655

655

645

640

635

625

610

591

689

111

797

782

753

787

865

895

1,010

1,100 

l',090

1,160

1,210 

1,210

1,180

1,110

1,110

*1,100

1,060

992

1,020

1,020

997

27,770

896

55,080

Aug.

787

782

777

782

777

111

111

111

738

718

723

723

718

723

728

111

935

930 

925

1,020

1,160 

841

699

694

694

689

*689

694

699

699

708

24,160

779

47,920

Sept.

713

713

713

713

723

723

777

851

851

851

856

856

856

860

860

860

956

1,010 

1,010

1,010

1,010 

 1,010

1,010

1,000

99 /

992

986

986

981

981

-

26,715

890

52,990

Calendar year 1950: Max 1,620 Min 9 Mean 485 Ac-ft 351,200

Water year 1950-51: Max 1,210 Min 10 Mean 587 Ac-ft 425,000

* Discharge measurement made on this day.

Note. Discharge for periods Nov. 16-29 and Dec. 30 to Mar. 3 cc 

eadlngs.

puted from once-daily staff gage
30 HENRYS PORK BASIN

Henrys Pork at Warm River, Idaho

Location. Lat 44°07', long. 111°20', in sec. 12, T. 9 N., R. 43 E., on left bank 1,000 ft 

upstream from Warm River and half a mile northwest of Warm River railroad siding.

Drainage area. 656 sq mi (revised).

Records available.--September 1910 to March 1915, April 1918 to September 1951. Prior to 

1911, published as North Fork of Snake River at Warm River.

Gage. Water-stage recorder. Altitude of gage is 5,255 ft (from river-profile map). 

Prior to June 29, 1923, staff gage at same site and datum.

Average discharge . 37 years (1910-14, 1918-51), 989 cfs.

Extremes.--Maximum discharge during year, 1,920 cfs May 15 (gage height, 6.19 ft); minimum, 

353 cfs Jan. 28 (gage height, 3.62 ft).

1910-15, 1918-50: Maximum discharge, 3,540 cfs May 18, 1927; maximum gage height, 

7.80 ft Apr. 27, 1946; minimum discharge, 217 cfs Dec. 11, 12, 1949 (gage height, 

3.12 ft).

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

Plow regulated by Henrys Lake (see p. 44 ) and Island Park Reservoir (see p. 28). Some 

water diverted above station for irrigation of meadows on headwaters.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

a870

a870

a870

a870

*861

873

867

855

855

855

855

855

855

837

B6T

1,020

999

993

987

981

981 

981

981

981

981

993

,010

,020

,030

,020

,050

28,917

933

57,360

Nov.

1,040

1,010

1,010

1,000

1,000

1,000

1,010

*1,020

993

1,010

903

849

843

849

825

443

466

470

466

452

452 

456

443

443

443

439

439

439

434

4BT

-

21,108

704

41,870

Dec.

734

712

739

750

679

695

789

75T5"

728

722

*717

717

717

717

717

712

706

700

700

700

700 

695

695

695

695

700

722

706

706

712

728

22,161

715

43,960

Jan.

674

712

750

745

700

690

700

695

773

*734

728

722

717

728

722

706

637

717

717

873

873 

B5S~ 891

861

861

843

837

563

bBTJTJ

b850

b870

23,364

754

46,340

Feb.

b800

bB50

975

993

97F

933

*909

891

873

867

849

843

843

897

921

861

861

867

867

861

867 

861

867

897

897

897

891

897

_

_

-

24,810

886

49,210

Mar.

*897

891

903

909

963

963

933

915

909

897

939

957

903

891

861

909

921

939

885

891

855 959"

885

891

885

891

891

891

885

891

897

28,047

905

55,630

Apr.

903

*§OT

921

939

945

957

969

975

993

999

987

999

,030

,070

,080

,070

,130

,220

,290

,240

,240 

,120

,080

,100

,110

* ,150

,160

,200

,200

,200

-

32,180

1,073

63,830

May

,190

,160

,140

,160

,250

 ,350

* ,500

,690

,770

,760

,660

,430

,600

,700

,850

,800

,780

,640

,530

,540

,540 

,560

,560

,590

,590

,530

,500

,530

,500

* ,440

,460

47,300

1,526

93,820

June

1,430

1,370

1,340

1,330

1,320

1,360

1,360

1,380

1,380

1,340

1,290

1,280

1,380

1,380

1,360

1,360

1,330

1,300

1,260

1,220

1,190 

1,200

1,200

1,180

1,170

*1,160

1,150

1,130

1,090

1,080

38,320

1,277

76,010

July

,070

,060

,060

,050

,040

,020

,000

999

975

,T5o~

,210

,200

,160

,150

,220

,290

,310

,540

,530

,510

,640 

,610

,610

,530

,500

* ,510

,520

,420

,440

,420

,410

40,184

1,296

79,700

Aug.

,250

,150

,150

,230

,190

,160

,160

,170

,140

,070

,070

,070

,070

,070

,060

,060

,240

,300

,310

* ,310

,530 

,530

,110

,140

,110

,110

,110

,120

,140

,130

,110

36,370

1,173

72,140

Sept.

1,110

1,100

,100

,110

,100

,110

,090

1,200

,220

,220

,230

,240

,240

* ,240

,240

,230

,250

,390

,390

,4OO

,400 

,410

,400

,400

,410

,410

,420

,410

,410

,420

38,300

1,277

75,970

Calendar year 1950 : Max 2,460 Mln 364 Mean 962 Ac-l't 696,700

Water year 1950-51 : Max 1,850 Mln 434 Mean 1,044 Ac-ft 755,800

* Discharge measurement made on this day.

a Ho gage-height record; discharge computed on basis of records for stations near Island Park and 

Ashton.

b Stage-discharge relation affected by Ice.
HENRYS FORK BASIN 31

Henrys Fork near Ashton, Idaho

Location. Lat 44°05', long. 111 C 30', in sec. 28, T. 9 N., R. 42 E., on right bank a quarter of a mile downstream from powerplant and 3 miles west of Ashton.

Drainage area. 1,040 sq mi, approximately (revised).

Records available. April 1890 to June 1891, August 1902 to June 1909, April 1920 to September 1951.Published as Henrys Fork in canyon above Fall River, 1890-91, and as 

North Fork of Snake River near Ora, 1902-9.

Gage. Water-stage recorder. Altitude of gage is 5,095 ft (from river-profile map). April 

1890 to June 1891, staff gage at site 6 miles downstream at different datum. August 

1902 to Apr. 15, 1921, staff gage and Apr. 16, 1921, to May 3, 1930, water-stage recorder at site 1-| miles downstream from present site at different datum.

Average discharge.--32 years (1903-8, 1924-51), 1,300 cfs.

Extremes.--Maximum discharge during year, 3,330 cfs May 7; maximum gage height, 7.76 ft 

Aug. 22; minimum discharge, 224 cfs Apr. 14 (gage height, 5.14 ft); minimum daily, 718 

cfs Nov. 16, Jan. 28.

1890-91, 1902-9, 1920-51: Maximum discharge, 6,220 cfs May 7, 1925; minimum discharge, 

65 cfs Oct. 16, 1935 (gage height, 4.59 ft); minimum daily, 440 cfs Dec. 5, 1931.

Remarks. Records excellent. Diurnal fluctuation caused by powerplant above station. Plow 

regulated by Henrys Lake (see p. 44 ) and Island Park Reservoir (see p. 28)- About 

17,500 acres irrigated by diversions above station.

Cooperation. Gage-height record during non-irrigation season furnished by Utah Power and 

Light Co.

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

#

,100

,140

,140 

,160

,190

,170

,170

,170

,140

,160

,190

,120

,160

,140

,160

,380

,360

,280

,280

,280

,280

,300

,260

,300

,270

,320

,320

,360

,340

,340

,400

38,380

1,238

76,130

Nov.

,580

,320

,320 

,280

,330

,280

,320

* ,340

,260

,210

,210

,160

,120

1,170

1,160

718

792

803

781

792

792

803

803

738

781

770

760

770

770

792

-

30,525

1,018

60,550

Dec.

*

,060

,010

,090 

,100

928

952

,140

,090

,010

,040

,040

,030

,040

,040

,030

,040

,040

,010

,040

,010

,040

,010

,010

,030

,000

988

,000

,050

,010

,010

,060

31,948

1,031

63,370

Jan.

892

1,030

1,040 

1,080

976

976

928

988

*

,140

,040

,090

,030

,040

,080

,080

,080

952

,100

,030

,130

,140

,250

,140

,170

,130

,140

,120

718

728

,090

,160

32,468

1,047

64,400

Feb.

*

,000

,130

,230 

,300

,320

,320

,340

,280

,260

,230

,230

,210

,190

,160

,190

,200

,160

,230

,190

,170

,160

,170

,170

,240

,200

,170

,170

,170

_

-

33,790

1,207

67,020

Mar.

*

3

7

,190

,190

,170 

,100

, 130

,300

,320

, 170"

,200

,170

,140

,140

,190

,190

,160

,140

,160

,140

,170

,170

,130

,240

,190

,200

,210

,200

,210

,190

,170

,200

,210

,690

,184

,770

Apr.

*

4

9

,270

,260

,270 

,330

,330

,380

,400

,440

,480

,420

,400

,450

,480

,680

,630

,600

,660

,840

,980

,900

,940

,680

,680

,700

,770

,840

,040

,120

,100

140

,210

,640

,610

May

2,040

1,940

*1,830 

1,860

2,060

2,300

2,510

2,720

2,780

2,680

2,610

2,340

2,530

2,530

2,630

2,490

2,570

2,470

2,320

2,340

2,300

2,260

2,260

2,300

2,220

2,140

2,060

2,200

2,060

1,980

2,040

71,370

2,302

141,600

June

*2.040

*

,880 

,770

,810

,840

,840

,810

,840

,730

,730

,720

,960

,900

,830

,810

,830

,770

,720

,700

,610

,720

,720

,650

,680

,630

,650

,610

,560

~*~-,480

52,720

1,757

104,600

July

*

,530

,480

,500 

,520

,480

,440

,470

,450

,420

,700

,660

,720

,610

,530

,630

,720

,700

,980

,960

,920

,120

,060

,020

,940

,880

,900

,920

,860

,860

,810

,790

53,580

1,728

106,300

Aug.

*

,730

,480

,520 

,730

,700

,600

,650

,530

,550

,440

,380

,440

,360

,440

,360

,390

,580

,610

,660

,650

,940

,060

, 420

,530

,520

,480

,500

,580

,580

,550

,520

48,480

1,564

96,160

Sept.

*

'

,480

,530

,520 

,530

,520

"7550" ,470

,560

,660

,630

,610

,660

,650

,600

,630

,600

,630

,850

,830

,750

,790

,810

,790

,790

,790

,750

,750

,750

,770

'-,750

49,960

1,665

99,090

Calendar year 1950: Max 3,470 Mln 453 Mean 1,362 Ac-ft 985,900

Water year 1950-51: Max 2,780 Mln 718 Mean 1,450 Ac-ft 1,050,000

* Discharge measurement made on this day.
32 HENRYS FORK BASIN

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 1951. Discharge of canals computed from daily or twice-weekly staff-gage readings, or interpolated, 

and combined to show total diverted flow. Records good.

Discharge, in cubic feet per second, May 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

Total

Mean

Ac-ft

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

680

718

689

699

741

736

782

675

689

708

819

868

843

723

780

809

877

882

849

1,020

1,110

1,180

1,080

1,350

1,360

1,370

1,390

1,450

1,440

1,380

1,360

30,057

970

59,620

June

1,340

1,290

1,260

1,280

1,270

1,320

1,280

1,240

1,250

1,230

1,240

1,050

1,550

1,230

1,080

1,170

1,200

1,200

1,210

1,160

1,130

1,080

1,030

941

958

935

1,000

1,020

1,020

1,030

-

34,794

1,160

69,010

July

1,050

1,020

1,000

999

1,010

1,000

1,030

1,040

1,040

1,060

997

993

986

965

1,030

981

974

1,030

1,260

1,200

1,230

1,180

1,170

1,170

1,180

1,180

1,150

1,140

1,120

1,070

856

33,091

1,067

65,640

Aug.

1,010

1.050

1,030

1,050

757

589

442

438

449

455

552

465

548

671

776

776

862

861

920

916

884

716

548

470

422

417

416

373

375

375

529

19,942

643

39,550

Sept.

354

354

354

356

469

517

502

555

549

581

581

631

616

453

460

460

460

460

460

459

458

454

450

448

446

445

447

448

439

435

-

14,101

470

27,970

Calendar year : Max Mln Mean Ac-ft

The season : Max - Mln - Mean - Ac-ft 261,800
HENRYS FORK BASIN 33

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 1951. Discharge of 

canals computed from daily or twice-weekly staff-gage readings, or interpolated, and combined to show total diverted flow. Records good.

Discharge, in cubic feet per second, May 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

Total

Mean

Ac- ft

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

o

o

o

0

0

o

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

39

39

39

39

39

39

39

39

39

351

11.3

696

June

40

40

40

40

40

50

60

70

80

100

120

140

160

160

180

180

190

195

199

2OO

200

200

201

£03

204

216

236,

a 246

251

251

-

4,492

150

8,910

July

251

251

252

253

255

257

257

258

257

248

256

252

252

249

246

24O

242

250

263

261

264

261

261

261

261

259

256

261

256

246

240

7,876

254

15,620

Aug.

239

238

241

220

201

174

171

145

134

134

131

131

129

122

121

120

126

129

139

173

216

218

199

167

135

130

137

125

78

82

87

4,792

155

9,500

Sept.

85

86

94

65

61

62

56

41

2

2

1

1

1

2

2

2

2

2

1

1

1

1

1

1

1

1

1

1

1

1

-

579

19.3

1,150

Calendar year : Max Min Mean Ao-i't

The season : Max - Min - Mean - Ao-ft 35,88O
34 HENRYS FORK BASIN

Fall River near Squirrel, Idaho

Location.--Lat 44°04', long. 111°15', in NE£ sec. 34, T. 9 N., R. 44 E., on right bank a 

quarter of a mile upstream from road bridge, half a mile downstream from headgates of 

Marysville canal, 4 miles northeast of Squirrel, and 10 miles upstream from Conant 

Creek.

Drainage area. 351 sq mi (revised).

Records available.--August 1902 to June 1909 (gage heights only prior to 1905), May 1918 

to September 1951. Published as "at Wilson's Mill, near Marysville" 1902, as "near 

Marysville" 1903, and as "at Fremont" 1904-9.

Gage . Water-stage recorder. Prior to Jan. 1, 1904, staff gage at site 3 miles upstream 

at different datum. Jan. 1, 1904, to Nov. 6, 1937, staff gage 200 ft upstream from 

present site at different datum. Nov. 7, 1937, to Oct. 7, 1948, staff gage 100 ft 

downstream from present site at datum 0.29 ft lower than present datum.

Average discharge. 38 years (1904-8, 1917-51), 750 cfs.

Extremes. Maximum discharge during year, 3,200 cfs May 29; maximum gage height, 4.58 ft 

Jan. 30; minimum discharge, 262 cfs Jan. 28, Feb. 1 (gage height, 0.71 ft).

1902-9, 1918-51: Maximum discharge observed, 6,440 cfs June 27, 1927; minimum observed, 72 cfs Feb. 9, 1930.

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

since October 1939 partly regulated by Grassy Lake (see p.44 ). About 16,000 acres 

irrigated from two diversions above station.

Rating table, water year 195O-51, except periods of ice effect (gage 

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

1.0 

1.5

335

396

375

690

2.0 

2.5 

3.0 

3.6

1,130

1,650

2,310

3,310

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

630

615

615

622

*622

660

622

622

622

601

594

594

580

573

608

622

587

566

559

552

552

545

538

538

587

594

615

615

675

660

701

18,692

603

37,080

Nov.

668

645

608

594

594

594

608

*645

545 

519

559

552

552

552

538

519

545

573

587

566

750

675

615

587

580

573

559

545

538

580

-

17,565

586

34,840

Dec.

566

545

559

573

532

519

545

532

526 

532

*532

526

519

512

512

506

5OO

500

500

500

493

480

493

486

486

469

486

493

480

486

486

15,874

512

31,490

Jan.

458

469

469

b460

b450

b445

b440

b450

b470 

*b491

b490

b490

b485

b485

b485

b480

b470

b440

b425

b435

442

447

452

442

442

442

436

b370

b350

b360

b365

13,835

446

27,440

Feb.

375

458

500

493

486

480

*486

486

519 

493

464

452

436

b420

b420

430

430

436

430

430

436

436

436

452

442

436

436

436

_

_

-

12,634

451

25,060

Mar.

*430

435

420

390

b567

395

415

410

415 

410

410

425

420

420

430

436

415

410

415

410

420

447

430

425

425

442

436

425

415

415

430

12,978

419

25,740

Apr.

452

*469

480

5OO

526

559

594

615

630 

622

594

608

682

792

809

784

869

1,010

1,100

1,150

1,140

986

977

1,040

1,160

*1,320

1,530

1,500

1.550

1,410

-

26,458

882

53,480

May

1,200

1,070

995

1,130

1,430

1,810

2,04O

2,040

1,980 

1,960

1,960

2,200

1,840

1,510

1,430

1,590

1,840

2,090

2,180

2,180

2,240

2,320

2,460

2,520

2,440

2,370

2,510

2,930

3.020

2,680

2,650

62,615

2.O2O

124,300

June

*2,210

1,750

1,510

1,380

1,350

1,350

1,360

1,320

1.510 

1,320

1,390

1,550

2,180

2,340

2,350

2,520

2.720

2,560

2,360

2,300

2,210

2,060

1,770

1,600

1,500

*1,460

1,410

1,410

1,420

1,400

-

53,270

1,776

105,700

July

1,340

1,340

,330

.380

,310

,240

,190

,140

1,080 

986

905

843

826

869

818

784

750

698

660

660

660

622

594

*594

615

652

660

698

784

682

645

27,355

882

54,260

Aug.

668

645

630

887

986

905

968

860

818 

766

758

750

724

716

707

690

682

675

652

*615

594

638

690

690

732

645

615

630

675

660

638

22,309

720

44,250

Sept.

630

615

601

615

615

615

632

630

652 

660

675

682

668

660

660

645

645

645

645

615

594

*601

601

594

594

587

587

580

580

580

-

18,693

623

37 , 080

Calendar year 1950 : Max 2,930 Min 3OO Mean 818 Ac -ft 592,000

Water year 1950-51: Max 3.O2O Min 350 Mean 828 Ac-ft 599,600

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
HENRYS FORK BASIN 35 

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

Between Squirrel and Chester gaging stations eight canals divert water from Fall River 

for irrigation. Records available for part of each irrigation season from 1919 to 1951. 

Discharge of canals computed from daily or twice-weekly staff gage readings, or interpolated, and combined to show total diverted flow. Records good.

Discharge, in cubic feet per second, May to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Total

Mean.

Ac-ft

May

149

149

150

154

161

161

164

166

166

166

152

146

148

151

167

June

647

643

628

617

594

625

655

650

659

661

680

727

742

744

747

July

770

765

765

768

765

752

742

739

736

676

674

708

695

692

699

Aug.

577

576

567

568

364

346

288

283

290

289

292

292

387

429

428

Sept.

300

259

257

255

251

249

247

244

263

243

241

241

211

229

228

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

May

189

189

193

198

250

376

321

334

350

414

451

501

587

674

643

656

8,676

280

17,210

June

758

759

760

781

800

794

777

766

763

767

771

771

745

779

782

-

21,592

720

42,830

July

734

752

714

596

588

598

604

599

597

609

533

612

613

597

603

590

20,885

674

41,420

Aug.

430

427

453

544

562

510

502

460

418

414

385

383

388

309

308

308

12,777

412

25,340

Sept.

217

217

216

216

214

212

211

202

202

202

227

238

250

250

225

-

7,017

234

13,920

The season Ac-ft 140,700

Fall River near Chester, Idaho

Location. Lat 44°01', long. 111°34' , in sec. 13, T. 8 N., R. 41 E., on right bank 500 ft

upstream from highway bridge, half a mile upstream from mouth, and 2 miles north of

Chester.

Drainage area. 520 sq mi (revised).

Records available.--April 1920 to September 1951 (irrigation seasons only). 

Gage. Water-stage recorder. Datum of gage is 5,051.9 ft above mean sea level, datum of

1929. Prior to Aug. 9, 1920, staff gage at site 200 ft downstream at same datum. Aug.

9, 1920, to Apr. 28, 1921, staff gage at present site and datum. 

Extremes. Maximum discharge during period May to September, 3,030 cfs May 29 (gage

height, 4.68 ft); minimum, 76 cfs July 24 (gage height, 1.38 ft).

1920-51: Maximum discharge recorded, 6,380 cfs June 27. 1927 (gage height, 6.60 ft);

minimum recorded, 9 cfs Aug. 7, 1923 (gage height, 1.01 ft). 

Remarks. Records excellent. Flow since October 1939 partly regulated by Grassy Lake

(see p.44 ). About 42,000 acres of land irrigated by diversions above station. Station

is below all diversions from Fall River.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.3 

1.6 

2.0 

2.5

127

265

515

900

1,990

3,560

Discharge, in cubic feet per second, May to September 1951

Day

1

2

3

4

5

6

7

3

9

10

11

12

13

14

15

Total

Mean

Ac-ft

May

1,440

1,270

*1.140

1,260

1,600

2,070

2,400

2,520

2,440

2,380

2,350

2,590

2,350

1,870

1,700

June

2,000

1,490

1,200

*1,030

900

927

927

891

864

855

918

1,030

1,580

1,910

1,800

July

690

666

643

762

682

622

560

515

471

395

337

278

237

233

152

Aug.

192

192

178

454

864

864

828

746

690

636

622

615

615

504

405

Sept.

454

444

454

460

476

476

476

482

476

488

493

515

515

504

504

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

May

1,850

2,130

2,410

2,480

2,420

2,470

2,560

2,620

2,640

2,530

2,330

2,280

2,660

2.900

2,480

2,400

68,540

2,211

135,900

June

1,980

2.260

2,120

,850

,740

,640

,500

,220

,030

918

846

*778

738

722

722

-

38,386

1,280

76,140

July

144

114

107

135

112

120

104

89

79

100

172

120

162

214

*233

188

9,436

304

18,720

Aug.

4OO

390

319

253

210

*203

245

365

375

471

400

360

400

498

498

466

14,258

460

28,280

Sept.

500

496

493

482

*471

449

449

449

432

390

390

390

380

370

565

-

13,723

457

27,220

The period Ma Ac-ft 286,300

* Discharge measurement made on this day.
36 HENRYS FORK BASIN

Henrys Fork at St. Anthony, Idaho

Location. Lat 43°58', long. 111°41 T , In sec. 1, T. 7 N., R. 40 E., on right bank half a 

mile upstream from bridge on main street of St. Anthony and 6 miles downstream from 

Fall River.

Drainage area. 1,770 sq mi (revised).

Records available. March 1919 to September 1951 (irrigation seasons only).

Gage. Water-stage recorder. Altitude of gage is 4,950 ft (from river-profile map). March 

1919 to Apr. 13, 1923, staff gages and Apr. 14, 1923, to Aug. 14, 1932, water-stage recorder at site 150 ft downstream at datum 0.075 ft lower.

Extremes. Maximum discharge recorded during year, 4,870 cfs May 9 (gage height, 5.37 ft); 

minimum recorded, 794 cfs July 15.

1919-51: Maximum discharge recorded, 9,030 cfs May 8, 1925 (gage height, 6.70 ft); 

minimum daily recorded, 413 cfs July 22, 1931.

Remarks. Records excellent. Diversions above station for irrigation. Flow regulated by 

powerplant 17 miles above station and by Henrys Lake (see p. 44), Island Park Reservoir 

(see p. 28), and Grassy Lake (see p. 44).

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

3.0 

3.5

4.0 

5.0 

6.0

580

1,040

1,760

3,870

6,790

Discharge, in cubic feet per second, May to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Tota

Mean

Ac-fl

May

2,880

2,600

*2.230

2,370

2,770

3,530

4,070

4,570

4.650

4,540

4,410

4,200

4,330

3,820

3,770

June

3,070

2,390

2,040

 1,740

1,580

1,630

1,650

1,620

1,630

1,540

1,550

1,580

2,290

2,880

2,880

July

1,260

 1,220

1,220

1.540

1,240

1,150

1,060

1,010

952

1,020

1,050

1,060

996

890

850

Aug.

1,110

860

840

1,400

2,290

2,250

2.440

2,350

2,310

2,000

1,760

1,830

1,650

1,410

1,160

Sept.

,660

,630

,650

,660

,660

,570

.500

,500

,570

,550

,550

,620

,710

,700

,710

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

May

3,680

4,070

4,300

4,220

4,120

4,040

3,900

3,940

3,940

3,750

3,530

3,280

3,650

3,870

3,440

3,320

115,790

3,735

229,700

June

2., 9 60

5.210

3,070

2,710

2,520

2,350

2,270

2,070

1,900

1,760

1,620

1,500

1,440

1,280

1,250

-

61,980

2,066

122,900

July

910

910

985

890

890

1,020

1,030

996

985

963

1,040

1,020

1,050

1,100

*1,160

1,240

32,507

1,049

64,480

Aug.

1,160

1,240

1,220

1,200

1,140

 1,260

1,660

1,600

1,630

1,740

1,550

1,550

1,630

1,860

1,830

1,780

49,710

1,604

98,600

Sept.

1,700

1,710

!_. 900

1,880

 1,830

1,790

1,830

1,830

1,810

1,780

1,740

1,730

1,710

1,710

1,700

-

50,890

1,696

100,900

The period Max - Mln - Ac-ft 616,600

Discharge measurement made on this day.

Diversions from Henrys Pork 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 

1951. Discharge of canals computed from daily or twice-weekly staff-gage readings, or interpolated, and combined to show total diverted flow. Records good.

Discharge, in cubic feet per second, May to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Tota

Ac-f

May

541 

561

585

602

674

642

643

552

735

785

794

797

783

857

833

1. .....

t. .....

June

1.170 

1,110

1,140

1,110

1,050

1,060

1,020

971

925

937

973

994

1,000

908

841

July

794 

773

781

781

795

826

832

849

829

804

765

760

754

746

805

Aug.

704 

680

735

575

573

388

324

318

287

304

418

417

491

642

657

Sept.

433 

463

462

455

453

482

5.2.4

513

513

517

502

501

455

380

366

Day

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

May

830 

857

886

942

948

999

1,050

1,090

1,130

1,140

1,200

1,210

1,190

1,190

1,180

1,180

54,360

June

866 

967

990

1,010

1,040

1,030

961

826

779

780

808

805

798

821

806

-

56,520

July

826 

874

979

858

861

877

868

810

819

785

815

798

799

773

691

698

49,640

Aug.

698 

696

683

754

720

700

580

409

378

336

388

388

415

430

425

409

15 922

31 , 580

Sept.

352 

352

352

352

367

389

385

380

375

373

372

370

368

367

365

-

418

24,870

The season Ac-ft 217,000
HENRYS FORK BASIN

Teton River near Victor, Idaho

Location. La t 43°33'50", long. 111°04 I 00", on line between sees. 19 and 30, T. 3 N., R. 

 46 E. , on right bank 100 ft downstream from Moose Creek, 200 ft upstream from String 

Canal, and 3? miles southeast of Victor.

Drainage area. 47.6 sq mi.

Records available. May 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,450 ft (from topographic map). Prior 

~tb July 29, 1949, at datum 1.54 ft higher.

Average discharge. 5 years, 81.7 cfs.

Extremes.--Maximum dischar 

mum daily, 30 cfs Jan. 

15-28.

1946-51: Maximum discharge observed, 398 cfs June 8, 1948, June 17, 1951; maximum gage height, 3.57 ft June 8, 1948, present datum; minimum recorded, 22 cfs Feb. 

20, 1947 (gage height, 1.39 ft, present datum), but may have been less during periods 

of ice effect or no gage-height record.

Remarks. Records fair. No regulation or diversion above station.

arge during year, 398 cfs June 17 (gage height, 3.49 ft); mini- 

. 30; minimum gage height, 1.45 ft sometime during period Mar.

Rating table, water year 1950-51 (gage height, in feet, and 

discharge, in cubic feet per second)

Oct. 1 to Feb. 28, 

June 21 to Sept. 3O Mar. 1 to June 20

1.4 

1.7 

2.0

2.5 152

3.0 262

3.3 338

1.5 

1.7 

2.0

2.5 170

3.0 279

3.4 375

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Total

Mean

Cf sin

In.

Ac-ft

Oct.

54

53

53

54

55

58

56

55

54

54

53

53

52

52

54

53

52

51

*50

50

49

45

49

49

49

50

50

50

50

50

50

1,611

52.0

1.09

1.26

3,200

Nov.

49

49

47

48

48

47

47

48

44

46

48

47

47

47

46

44

45

45

45

44

45

44

44

44

45

44

43

43

43

42

.

1,368

45.6

0.958

1.07

2,710

Dec.

44

43

43

43

40

40

45

45

*43

42

42

42

42

42

42

42

42

42

42

42

41

41

41

41

41

38

38

40

40

40

40

1,289

41.6

0.874

1.01

2,560

Jan.

39

38

38

38

38

37

36

36

38

37

37

37

37

37

37

37

37

35

33

33

34

34

33

33

*36

36

36

34

31

30

31

1,103

35.6

0.748

0.86

2,190

Feb.

32

35

36

37

37

37

37

37

37

37

37

35

35

35

35

35

35

35

35

35

36

36

36

36

36

36

36

35

-

-

-

1,001

35.8

0.752

0.78

1,990

Mar.

35

35

35

*35

34

36

35

34

35

34

32

34

*35

34

35

35

35

35

35

35

35

34

34

35

36

36

35

35

34

33

34

1,074

34.6

0.727

0.84

2,130

Apr.

34

35

36

36

37

39

40

41

41

40

40

40

44

46

47

47

50

53

54

*53

53

51

50

50

50

52

55

55

57

58

-

1,384

46.1

0.966

1.08

2,750

May

55

54

54

56

61

68

74

75

76

78

85

100

95

87

85

93

106

*133

147

151

166

190

215

231

240

242

263

320

356

327

303

4,586

148

3.11

3.58

9,100

June

270

244

222

207

198

*192

188

182

174

176

188

205

261

289

313

*365

375

3S5

351

337

322

310

280

270

270

270

260

257

252

243

-

7,834

261

5.48

6.12

15,540

July

"236 238

238

238

233

 222

213

2O6

195

187

176

168

164

162

160

154

150

144

139

*144

133

128

122

119

*115

113

112

115

133

113

105

5,075

164

3.45

3.97

10,070

Aug.

101

98

100

112

101

*98

94

90

88

84

83

82

82

80

78

78

78

78

76

75

75

82

82

80

76

74

73

*75

78

73

73

2,597

83.8

1.76

2.03

5,150

Sept.

70

70

69

68

68

68

68

66

66

66

68

66

64

63

63

63

61

62

61

61

60

60

60

59

59

59

59

59

59

58

1,903

63.4

1.33

1.49

3,770

Calendar year 1950 : Max 346 Min - Mean 85.1 Cfsm 1.79 in. 24.27 Ac-ft 61,590

Water year 1950-51 : Max 375 Min 30 Mean 84.5 Cfsm 1.78 in. 24.09 Ac-ft 61,16O

Peak discharge (base. 200 efs).--May 29 (3 to 4 a.m.) 368 cfs (3.37 ft); June 17 (2 to 3 a.m.) 398 

cfs (3.49 ft).

* Discharge measurement made on this day.

Note.--Ho gage-height record Oct. 2-12, Nov. 9 to Dec. 8, Dec. 27-31, Jan. 9-24, Jan. 29 to Mar. 3, 

Mar. 12, 15-28; discharge estimated on basis of weather records, recorded range in stage, and records 

for Teton Creeic near Driggs and other nearby streams.
38 HENRYS FORK BASIN

Teton Creek near Driggs, Idaho

Location.--Lat 43°45'30", long. 110°58'00", on right bank 1^ miles upstream from Mill 

Creek. 1.6 miles west of Boy Scout camp, 4.2 miles east of Wyoming-Idaho State line, 

and 1\ miles northeast of Driggs.

Drainage area. 33.8 sq mi.

Records available. June 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,660 ft (from topographic map).

Average discharge. 5 years, 111 cfs.

Extremes. Maximum discharge during year, 941 cfs June 17 (gage height, 3.88 ft); minimum recorded, 6.5 cfs Mar. 29 (gage height, -0.02 ft).

1946-51: Maximum discharge, 992 cfs June 29, 1950 (gage height, 4.11 ft); minimum 

recorded, 6.0 cfs Apr. 7, 1948, Mar. 30, 1949; minimum gage height recorded, -0.06 ft 

Apr. 7, 1948.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are good. No diversion or regulation above station.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

.7 

1.0 

1.3

6.9 

13 

£3 

43 

67 

101

1.6 

2.0 

2.5 

3.0 

3.7

158 

£56 

402 

577 

863

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

22

??

22

25

24

.28

26

25

34

34

39

49

49

48

J32

48

44

*40

38

36

34

32

30

29

29

28

28

27

30

30

30

1,032

33.3

0.985

1.14

2,050

Nov.

28

?5

26

26

27

26

26

26

19

22

24

23

23

23

22

21

22

22

22

22

22

21

20

19

19

19

19

19

19

20

-

675

22.5

0.666

0.74

1,340

Dec.

19

TH

18

18

16

17

18

18

*17

16

17

17

17

16

16

16

15

151-5

15

14

14

14

14

14

13

13

14

14

14

14

486

15.7

0.464

0.53

964

Jan.

13

14

14

13

13

12

13

12

13

12

12

12

12

12

12

12

12

11

9.5

9.5

9.8

9.8

9.5

9.5

12

12

12

bll

b8.8

a8.6

a9.0

355.0

11.5

0.340

0.39

704

Feb.

a9.2

a9.5

alO

11

TT

11

11

ID"9.0

11

10

10

10

blO

*10

9.5

9.5

9.5

9.5

9.2

9.2

9.2

9.2

9.2

9.0

9.0

9.0

9.0

_

-

272.7

9.74

0.288

0.30

541

Mar.

8.7

8.7

8.7

9.0

9.2

8.7

8.7

8.5

8.5

8.5

b8.2

b8.2

8.2

8.2

8.2

8.5

8.2

b8.2

8.2

8.2

8.5

8.5

8.2

7.9

87?

8.5

8.5

b8.5

8.2

*8.5

8.5

261.5

8.44

0.250

0.29

519

Apr.

8^5

8.7

9.5

10

13

16

22

24

25

24

24

24

30

40

46

46

53

63

67

*67

63

57

54

52

51

53

59

6O

63

61

-

1,193.7

39.8

1.18

1.31

2,370

May

56

53

50

53

70

97

June

389

280

215

179

165

156

110 | 152

104 | 139

100 i 129

111 148

129 228

165 331

143 518

116 518

108 588

137. *786

203 "777

305 719

*340j 698

3431 678

364 623

442 540

508 462

536 480

500 ! 504

494 518

562

833

723

570

500

8,825

 289

8.43

9.71

17,500

483

522

536

522

-

12,983

433

12.8

14.29

25,750

July Aug .

536

555

585

650

619

592

585

544

504

435

373

343

380

418

418

425

425

412

386

*364

334

297

267

256

246

238

225

246

508

358

272

12,796

413

12.2

14.08

25,380

225

198

193

300

505

230

167

141

122

110

101

98

95

87

80

*78

78

75

73

70

67

84

97

91

90

71

*"66 64

86

72

64

3,678

119

3.52

4.05

7,500

Sept.

59

55

52

50

47

46

44

43

39

38

38

38

36

34

32

30

29

29

29

28

27

26

24

23

23

22

22

21

21

20

-

1,025

34.2

1.01

1.13

2,030

Calendar year 1950: Max 816 Mln - Mean 118 Cfsm 3.49 In. 47.54 Ac-ft 85,700

Water year 1950-51: Max 833 Mln 7.9 Mean 119 Cfsm 3.52 In. 47.96 Ac-ft 86,450

Peak discharge (base, 600 cfs).--May 28 (10:30 p.m.) 876 cfs (3.73 ft); June 17 (12:30 a.m.) 941 

cfs (3.88 ft); July 4 (11 p.m.) 748 cfs (3.43 ft); July 29 (12:30 p.m.) 727 cfs (3.38 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

streams.

b Stage-discharge relation affected by Ice.
HENRYS FORK BASIN 39

Horseshoe Creek near Driggs, Idaho

Location. Lat 43°44'00", long. 111 0 15'30", in sec. 27, T. 5 N., R. 44 E., on left bank 

at mouth of canyon 90 ft upstream from bridge on old railroad grade, 4 miles upstream 

from mouth, and 1\ miles west of Driggs.

Drainage area. 11.7 sq mi.

Records available.--May 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,200 ft (from topographic map).

Average discharge. 5 years, 11.8 cfs.

Extremes. Maximum discharge during year, 65 cfs May 21 (gage height, 3.74 ft); minimum 

recorded, 1.9 cfs Sept. 9, 10 (gage height, 1.55 ft), but may have been less during 

winter period.

1946-51: Maximum discharge, 77 cfs May 19, 1949; maximum gage height, 4.16 ft 

May 23, 1950; minimum discharge, 0.7 cfs Nov. 12, 1946, but may have been less during 

winter period; minimum gage height observed, 0.96 ft Feb. 11, 1947.

Remarks. Records poor. No diversion or regulation above station.

Discharge, in cable feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

6.8

7.1

7.4

7.3

7.1

7.1

6.8

6.8

6,5

6.5

6.5

6.3

6.1

6.1

6.0

5.8

5.7

5.5

»5?f

5.7

5.7 

5.5

5.7

6.3

7.3

7.4

8.1

8.1

8.5

7.4

7.6

206.4

6.66

0.569

0.66

409

Nov.

7.4

7.4

6.9

6.8

6.6

6.6

6.5

7.4

5.4

5^5

6.5

6.0

5.8

6.0

5.5

6.0

6.1

6.8

6.3

7.1

9^0 

7.3

6.6

6.1

6.1

6.0

5.8

5.5

5.5

6.0

-

192.5

6.42

0.549

0.61

382

Dec.

5.4

5.5

5.7

5.2

(*)

. 5

' 4.5

148.8

4.80

0.410

0.47

295

Jan.

4

. 3.5

116.0

3.74

0.320

0.37

230

Feb.

(*)

3

-

-

-

84.0

3.00

0.256

0.27

167

Mar.

' 3

(*)

' 3.5

98.5

3.18

0.272

0.31

195

Apr.

5^0

6.0

8.0

10

13

16

19

20

22

21

20

20

24

27

24

24

25

28

32

*31

30 

27

26

26

27

29

35

37

38

34

-

704.0

23.5

2.01

2.24

1,400

May

32

29

28

30

34

38

39

40

42

42

44

47

44

41

40

41

43

47

*50

50

51 

48

48

48

47

46

45

47

45

42

41

1,309

42.2

3.61

4.16

2,600

June

38

36

33

31

30

30

29

27

26

25

24

25

28

27

26

25

*25

24

24

23

22 

22

21

20

20

19

19

18

18

17.

-

752

25.1

2.15

2.39

1,490

July

17

17

15

16

16

15

15

15

15

14

14

14

13

12

12

12

11

10

10

«9.7

9.2 

9.0

8.6

8.1

8.0

B9.9

1210 '

9.0

372.3

12.0

1.03

1.18

738

Aug.

8.8

8.3

8.1

14

11

9.3

8.6

8.0

8.0

7.4

6.9

6.6

6.0

5.8

5.5

5.5

4.8

4.4

4.3

4.8

6.1 

9.0

10

9.9

8.8

6.5

5.5

*6.0

6.5

5.4

4.8

224.6

7.25

0.620

0.71

445

Sept.

4.4

4.0

3.9

3.5

3.5

3.4

3.2

2.8

2.8

2.6

3.7

4.8

4.6

4.2

3.1

3.1

3.0

3.4

3.1

3.1

3.9 

4.2

3.9

3.7

3.5

4.2

4.3

4^9

4.9

4.4

-

112.1

3.74

0.320

0.36

222

Calendar year 1950: Max 68 Mln - Mean 15.1 Cfsm 1.29 In. 17.51 Ac-ft 10,930

Water year 1950-51: Max 51 Mln - Mean 11,8 Cfsm 1.01 In. 13.73 Ac-ft 8,570

Peak discharge (base. 50 cfs) . Apr. 29 (5 a.m.) 51 cfs (3.54 ft); May 12 (5 p.m.) 53 cfs (3.48 

ft); May 21 (10:30 p.m.) 65 cfs (3.74 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 5 to Apr. 6 (no gage-height records Dec. 5-8, 

Jan. 1 to Feb. 2; discharge estimated on basis of weather records and records for other streams In 

Teton River basin.
40 HENRYS FORK BASIN

Teton River near Tetonia, Idaho

Location.--Lat 43°51', long. 111°15', in sec. 15, T. 6 N., R. 44 E., on right bank l| 

miles downstream from Mghway bridge, 4 miles downstream from Packsaddle Creek, and 

6 miles northwest of Tetonia.

Drainage area. 471 sq mi (revised).

Records available.--October 1929, March 1930 to September 1932, May to September 1934, 

July to September 1935, May to September 1940, and June 1941 to September 1951 in 

reports of Geological Survey. October and November 1932, July to September 1936, and 

July to September 1937 in reports of Water District No. 36, State of Idaho.

Gage.--Water-stage recorder. Datum of gage is 5,910.7 ft above mean sea level, unadjusted. Since November 1941, supplementary staff gage at site if miles upstream.

Average discharge.--12 years (1930-32, 1941-51), 399 cfs.

Extremes.--Maximum discharge during year, 1,400 cfs May 30 (gage height, 2.55 ft); minimum 

daily, 150 cfs Jan. 31, Feb. 1.

1929-32, 1934-35, 1940-51: Maximum discharge observed, 1,900 cfs June 28, 1945 (gage 

height, 2.97 ft); minimum observed, 62 cfs Jan. 16, 17, 1943.

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

are fair. Many diversions from tributaries above station for irrigation.

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

535

516

510

478

454

443

437

425

410

400

390

380

375

380

392

397

386

370

359

354

349

349

349

349

359

364

397

472

454

402

397

12,632

407

25 ,'060

Nov.

*408

408

386

370

364

354

344

349

339

310

330

330

325

325

320

310

330

354

380

380

400

480

400

350

324

320

310

3 Ob

300

305

-

10,510

350

20,850

Dec.

330

314

290

250

220

*230

250

290

300

305

305

300

290

280

275

270

270

270

265

260

260

260

260

260

260

250

240

230

215

220

225

8,244

266

16,350

Jan.

215

210

220

*230

230

220

210

210

215

220

225

225

225

225

230

230

230

230

220

210

210

210

220

230

255

230

225

215

190

160

150

6,705

216

13,300

Feb.

150

160

180

200

220

240

260

*299

310

310

310

300

290

280

270

260

250

240

230

220

220

230

235

235

220

210

210

210

_

_

-

6,749

241

13,390

Mar.

210

210

210

210

210

210

210

210

210

210

190

*175

200

215

*220

220

223

200

208

210

220

235

230

223

230

250

245

245

242

270

524

6,875

222

15,640

Apr.

560

660

680

720

740

710

689

527

*577

502

592

580

597

402

554

529

329

529

549

549

559

586

549

*529

549

544

451

448

451

559

-

13,740

458

27,250

May

515

425

386

559

55-".

564

597

443

466

437

425

552

577

515

454

431

443

472

521

583

655

*758

857

962

1,000

977

954

1,080

1,510

1.560

1,260

20,252

653

40,170

June

1,140

984

873

773

705

682

655

615

596

552

559

553

696

924

910

954

1,110

1,200

1,160

*1,040

932

822

758

648

589

545

527

515

502

508

-

22,965

766

45,550

July

521

515

521

535

552

545

558

539

533

*545

583

622

583

558

545

545

545

545

545

577

609

609

583

558

558

564

577

682

880

:,ioo

*1,190

18,920

610

37,530

Aug.

984

880

830

1,050

1,190

1,170

1,030

887

82?

775

717

668

628

596

577

570

552

545

539

539

577

675

873

902

858

745

648

*609

615

596

570

25,215

749

46,050

Sept.

552

545

512

515

508

508

502

490

472

466

466

484

478

460

448

448

445

437

431

419

419

419

419

402

592

597

386

*38O

375

380

-

15,562

452

26,900

Calendar year 1950: Max 1,420 Mln 100 Mean 455 Ac-ft 329,900

Water year 1950-51: Max 1,360 Min 150 Mean 450 Ac-ft 326, OOO
HENRYS FORK BASIN 41 

Teton River near St. Anthony, Idaho

Location. Lat 43°56' , long. 111°37', in sec. 15, T. 7 N., R. 41 E., on right bank half a 

mile upstream from railroad bridge and 4 miles southeast of St. Anthony.

Drainage area. 890 sq mi (revised).

Records available.--January 1890 to September 1893, April 1903 to June 1909, April 1920 

to September 1951 (no winter records 1903, 1920, 1921, 1923-33). Published as "near 

Wilford" or "at Chase's Ranch" 1890-93.

Gage.--Water-stage recorder. Datum of gage is 4,971.8 ft above mean sea level, datum of 

1929. Apr. 5, 1890, to Sept. 30, 1893, staff gage at site 1 mile downstream at different datum. Apr. 23, 1903, to June 30, 1909, staff gage at site three-quarters of a 

mile upstream from present site at different datum. Apr. 19, 1920, to May 1, 1921, 

staff gage and May 2, 1921, to Nov. 5, 1933, water-stage recorder at site 400 ft downstream from present site at different datum.

Average discharge.--18 years (1933-51), 754 cfs.

Extremes.--Maximum discharge during year. 3,490 cfs May 29 (gage height, 6.03 ft); minimum, 

2Wcfs Jan. 28 (gage height, 1.49 ft).

1890-93, 1903-9, 1920-51: Maximum discharge, 7,820 cfs June 5, 1909 (gage height, 

6.90 ft, site and datum then in use); minimum, 88 cfs Mar. 12, 1906 (gage height, 1.00 

ft, site and datum then in use).

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

40,000 acres of land irrigated from diversions above station. Water is diverted at 

times during irrigation season from Henrys Fork through Cross Cut Canal to Teton River 

about three-quarters of a mile above station (1,020 acre-ft diverted into river during 

1951 irrigation season).

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Total

Mean

Ac- ft

Oct.

756

750

743

719

706

689

683

678

666

661

644

634

628

623

628

661

644

623

602

592

587

578

578

573

578

592

608

672

683

666

644

20,089

648

39,850

Nov.

*644

628

618

592

578

568

563

563

530

462

539

526

516

521

512

480

521

530

644

639

655

776

613

558

539

530

521

507

498

516

-

16,887

563

33,490

Dec.

549

526

466

b450

b400

*b400

b430

b460

b460

489

484

489

494

494

476

484

476

471

462

458

453

444

417

444

444

408

b400

b390

b395

b400

b400

14,013

452

27,790

Jan.

b380

b390

b410

*b430

b450

b420

b380

b380

b390

b390

b400

b410

b420

b430

b430

435

435

374

b360

b350

b370

b390

412

435

444

458

458

391

301

b290

b2_8_0

12,293

397

24,380

Feb.

b280

b350

b440

b500

b500

b500

b505

*b507

b530

b550

D590

b570

b530

b510

b490

b470

b460

b450

b440

435

435

435

440

448

444

440

435

430~

_

-

13,114

468

26,010

Mar.

b415

b390

b360

b360

b365

b365

b380

391

466

430

408

*417

435

412

426

422

399

382

412

399

426

530

476

466

489

578

544

507

484

507

568

13,609

439

26,990

Apr.

618

888

,040

,010

,070

,090

,050

998

*939

902

756

706

743

837

789

737

737

776

852

873

873

844

769

725

712

743

917

1.150

1,100

1,150

-

26,394

880

52,350

May

1,120

954

837

789

844

1,120

1,350

1,410

1,450

*1,430

1,410

1,670

1,730

1,440

1,250

1,250

1,510

1,830

2,060

2,110

2,190

2,390

2,600

2,810

2,810

2,650

2,680

3,010

3,410

3,160

2,860

58,134

1,875

115,300

June

2 ,500

2,040

1,760

1,530

1,390

1,310

1,290

1,220

1,180

1.110

1,110

1,220

*1,760

2,240

2,020

2,240

2,490

2,480

2,300

2,120

1,940

1,720

1,530

1,370

1,260

1,220

1,190

1,170

1,180

1,150

-

49,040

1,635

97,2/0

July

1,150

*1,150

1,160

1,210

1,250

1,230

1,220

1,190

1,140

1,100

1,090

1,120

1,110

1,100

1,090

1,060

1,070

1,070

1,120

1,090

1,100

1,080

1,040

1,010

991

976

991

1,080

1,330

*1,530

1.650

35,498

1,145

70,410

Aug.

1,490

1,320

,250

,470

.820

,720

,530

,350

,230

,160

,090

,040

991

932

909

917

866

816

803

789

*823

939

,250

,310

,310

,210

,070

,000

961

939

895

35,200

1,135

69,820

Sept.

866

844

810

796

789

762

750

731

725

719

712

731

737

719

706

700

689

689

683

*672

666

666

666

661

655

644

644

634

628

628

-

21,322

711

42,290

Calendar year 1950: Max 2,950 Min 240 Mean 873 Ac-i't 632,300

Water year 1950-51: Max 3,410 Min 280 Mean 865 Ac-ft 626,000

Peak discharge (base, 1,800 cfs).--May 29 (3 p.m.) 3,490 cfs (6.03 ft); June 17 (1 p.m.) 2,620 cfs 

(5.02 ft); Aug. 5 (11 p.m.) 2,700 cfs (5.08 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
42 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 1951. 

Discharge of canals computed from daily or twice-weekly staff-gage readings, or interpolated, and combined to show total diverted flow. Records good.

Discharge, In cubic feet per second, May 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

Total

Mean

Ac- ft

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

144

160

119

117

m

122 

162 

174

168

173

173

183

198

208 

207

219

152

234

232

372

452

608

756

864

920

971

1,070

1,210

1.220 

1,200

1,180

14,086

454

27,940

June

1,190

1,110

1,040

1,030

1,030

1.010 

1,056 

1,020

1,020

1,010

1,020

1,120

1,270

1,560 

1,346

1,320

1,350

1,360

1,320

1,350

1,320

1,290

1,200

1,110

1,080

1,080

1,050

1,060

1,070 

1,040

-

34,590

1,153

68,610

July

1,110

1,160

1,090

1,090

1,090

1,140 

1.200 

1,200

1,180

1,150

1,130

1,160

1,120

,080 

,110

,140

,090

,020

,140

1,080

1,060

1,040

998

962

924

948

956

995

966 

838

857

33,048

1,066

65,550

Aug.

S56" 764

670

614

475

361 

329 

319

"32O~ 304

320

329

376

415 

494

511

633

659

704

717

683

674

544

442

425

395

386

373

383 

365

356

15,036

485

29,820

Sept.

353

310

31?

333

329

468 

T3S

414

457

449

437

452

392

382 

381

361

367

419

423

427

427

418

440

467

443

419

411

417

415 

406

-

12,174

406

24,150

Calendar year : Max Mln Mean Ae-ft

The season : Max - Mln - Mean - Ac-ft 216,100
HENRYS FORK BASIN 43

Henrys Fork near Rexburg, Idaho

Location.--Lat 43°50', long. 111°54', In sec. 30, T. 6 N., R. 39 E., on right bank 200 ft 

downstream from highway bridge, downstream from all tributaries, and 7 miles west of 

Rexburg.

Drainage area. 2,920 sq mi (revised), approximately.

Records available.--April 1909 to September 1951. Prior to 1911, published as North Fork 

of Snake River near Rexburg.

Gage. Water-stage recorder. Datum of gage is 4,807.7 ft above mean sea level, datum of 

1929. Apr. 13, 1909, to Sept. 28, 1912, staff gage at datum 0.67 ft higher. Sept. 29, 

1912, to Apr. 4, 1913, staff gage at present datum.

Average discharge.--42 years (1909-51), 1,898 cfs.

Extremes. Maximum discharge during year, 5,210 cfs May 14 (gage height, 8.33 ft); minimum, 695 cfs July 18 (gage height, 3.10 ft).

1909-51: Maximum discharge, 9,490 cfs June 29, 1927 (gage height, 9.90 ft); minimum, 183 cfs Mar. 24-28, 1934 (gage height, 1.45 ft).

Remarks. Records good except those for periods of ice effect, which are fair. Flow regulated by operation of powerplant near Ashton and by Henrys Lake (see following page), 

Island Park Reservoir (see p. 28), and Grassy Lake Reservoir (see following-page). 

About 172,000 acres irrigated by diversions above station. Part of the return flow 

escapes westward beneath the Snake River plains above gaging station.

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

2,320 

2,300

2,290

2,270

2,290

2,290

2,300

2,280 

2,250

2,210

2,200

2,190

2,140

2.150

2,130

2,200

2,370

2,350

2,290

2,270

2,250

2,230

2,310

2,260

2,290

2,350

2,410

2,440

2,490

*2,510

2.550

71,160

2,295

141,100

Nov.

Hi

2,480

2,440

2,440

2,430

2,390

2,370

2,410

2,200

2,230

2,330

2,320

2,310

2,280

2,210

1,910

1,920

1,900

1,930

1,910

2,080

2,080

1,940

1,800

1,800

1,780

1,750

1.720

1,740

-

64,340

2,145

127,600

Dec.

1,830 

1,960

1,920

1,970

1,800

* 1.650

1,850

2,050 

2.080

2,070

2,060

2,040

*2,030

2,020

2,010

1,980

1,960

1,950

1,940

1,940

1,900

1,930

1,880

1,900

1,900

1,830

1,780

1,790

1,870

1,890

1,880

59,660

1,925

118,300

Jan.

1,850 

1,710

1,830

1,870

1,850

1,820

1,730

1,850 

1,880

1,800

1,830

1,800

1,800

1,800

*1,800

1,840

1,850

1,810

1,830

1,780

1,830

*1.890

l.'SSO

1,880

1,860

1,870

1,800

1,500

1.550

1,400

1,700

55,260

1,783

109,600

Feb.

1.650 

1,770

1,900

2,100

2,150

2.180

2, ISO1

2,180 

2,160

2,170

2,120

2,090

2,060

*2,050

2,070

2,070

2,070

2,050

2,080

2,040

2,020

2,020

2,020

2,040

2,070

2,000

2,000

2,000

-

-

-

57,290

2,046

113,600

Mar.

2,ooo 

2,020

2,000

1,940

1,910

2,100

2,070

2,050 

2,060

2,080

1,990

*1.900

2,010

2,050

2,040

2,020

1,980

1,920

1,930

1,990

2,020

2,170

2.220

2,050

2,080

2,180

2,220

2,140

2,080

2,050

2,070

65,300

2,042

125,600

Apr.

2.160 

2,290

2,480

2,590

2,650

2,710

2,700

2,660 

2,620

2,580

*2,580

2,260

2,540

2,450

2,620

2,540

2,440

2,580

2,850

3,030

2,970

2,920

*2,460

2,350

2,550

2,510

2,790

5,520

3,520

5.600

-

79,700

2,657

158,100

May

5,550 

5,240

2,840

2.570

2,670

5,140

3,810

4,590 

4,940

*5.170

5,070

4,940

5,000

5,170

4,750

4,350

4,160

4,480

4,800

4,910

4,850

4,750

4,570

4,480

4,410

4,180

5,860

5,900

4,200

4,360

4,190

131,640

4,246

261,100

June

4.020i 

5,470

2,720

*2,150

1,660

1,560

1,580

1,640 

1,600

1,520

1,400

1.500

*1,440

2,480

5,170

5,220

5,490

3,830

5,660

3,160

2,810

2,550

2,480

2,570

2,190

1,900

1,680

1,560

1,400

1,330

-

69,340

2,311

137,500

July

1,550 

*1,550

1,330

1,340

1,380

1,280

1,090

968 

914

872

1,030

1,050

1,000

914

808

758

720

705

753

758

786

902

*902

872

878

850

872

974

1,190

1,620

1.820

32,016

1,033

63,500

Aug.

1,900 

1,730

1,520

1,750

2,970

3,610

4,010

4.170 

3,990

5,620

3,070

2,840

2,640

*2,270

1,860

1,630

1,400

1,350

1,230

1,210

1.200

1,680

2,390

2,600

2,890

2,880

2,700

2,540

2,740

2,710

2,630

75,730

2,443

150,200

Sept.

2.490 

2,300

2,270

2,180

2,120

2,040

1,860

1.740 

1,790

1,820

1,780

1,840

2,100

*2,160

2,120

2,080

2,030

2,060

2,140

2,110

2,080

2,080

2,110

2,110

2,090

2,050

2,080

2,090

2,070

2,050

-

61,840

2,061

122,700

Calendar year 1950: Max 6,440 Mln 781 Mean 2,224 Ao-ft 1,610,000

Water year 1950-51 : Max 5,170 Mln 705 Mean 2,250 Ac-ft 1,629,000

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 4-9, Jan. 3 to Feb. 28, Mar. 6-
44 HENRYS FORK BASIN

Smaller reservoirs in Henrys Fork basin

Henrys Lake.--Staff gage, lat 44°36', long. 111°21 ! , at dam on Henrys Fork in SW£ sec. 26, 

T. 15 H., R. 43 E. , 4 miles south of former Lake, Idaho, post office. Datum of gage is 

6,457.16 ft above mean sea level (levels by Bureau of Reclamation). Drainage area, 98 

sq mi (revised) approximately, including that of Dry Creek. Records available, June 

1923 to September 1951 (fragmentary). Maximum contents observed during year, 82,542 

acre-ft June 27 (gage height, 15.50 ft); minimum observed, 69,956 acre-ft Oct. 9 (gage 

height, 13.50 ft). Maximum contents observed during period 1923-51, 83,184 acre-ft 

June 12, 1947; minimum observed, 140 acre-ft Nov. 8, 1934 (gage height, 0.03 ft).

Reservoir is formed on natural lake by concrete dam; storage began Sept. 21, 1922; 

dam completed July 1923. Capacity, 79,351 acre-ft between gage heights 0.0 ft (normal 

low-water level of Henrys Lake prior to construction of dam) and 15.0 ft (top of 5-foot 

flashboards on spillway). Floodwaters of Dry Creek are diverted into Henrys Lake at 

times (none diverted during water year 1950-51). Water used for irrigation near St. 

Anthony. Gage read occasionally. Records given herein represent usuable contents. 

Capacity table furnished by North Fork Reservoir Co.

Grassy Lake. Mercury pressure gage, lat 44°08', long. 110°49' in gatehouse at dam on

arassy Greek, 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 sea 

level (levels by Bureau of Reclamation). Drainage area, 12 sq mi, approximately, including basin of Cascade Creek, from which water is diverted into Grassy Lake. Records 

available, October 1939 to September 1951. Maximum contents during year, 15,260 acre-ft 

June 13 (elevation, 7,210.25 ft); minimum, 12,114 acre-ft Aug. 23-25 (elevation, 

7,199.75 ft). Maximum contents during period 1939-51, 15,446 acre-ft July 2, 1943 elevation, 7,210.85 ft); no contents Oct. 2-5, 1940.

Reservoir is formed by earth-fill, rock-faced dam; storage began Oct. 18, 1939. 

Capacity, 15,182 acre-ft between elevations 7,135.0 ft (sill of trash rack) and 7,210.0 

ft (crest of spillway). Water is used for irrigation of lands in Fremont-Madison irrigation district, Idaho. Gage read once daily about 7 a.m. except for period November 

to June 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 1950 to September 1951

Date

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

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

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

Calendar year 1950.....

Jan. 31.. ................

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

May 31. .................

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

Water year 1950-51.....

Gage 

height 

(feet)

-

.

-

Henrys La

Contents 

(acrefeet)

a74 200

a75,600

_

-

ke

Change in 

contents 

during month 

(acre-feet)

+2,730

+2,370

+1,400

+17,000

+1,000

+2,100

+2,100

-3,000

-4,000

-3,600

+2,300

Elevation 

(feet)

-

_

_

_

7,210.00

7,207.85

7,199.80

7,199.80

-

Grassy Lake

Contents 

(acrefeet)

a!2,710

.

a!2,910

a!3,460

a!5,070

15,182

14,516

12,129

12,129

-

Change in 

contents 

during month 

(acre-feet)

.

+210

+220

+10

+200

+200

+140

+210

+1,610

+112

-666

-2,387

0

-43

a No gage-height record; contents interpolated.
SNAKE RIVER MAIN STEM 45

Snake River near Shelley, Idaho

Location. La t 43°£4'50", long. 112°08'05", in SW£ sec. 17, T. IN., R. 37 E. , on right 

bank a quarter of a mile upstream from Woodville bridge , a quarter of a mile southeast 

of Woodville, and 2| miles north of Shelley.

Drainage area . 9,790 sq mi, approximately.

Records available. March 1915 to September 1951 (summer months only for some years).

Gage ~ . Water-stage recorder. Datum of gage is 4,599.0 ft above mean sea level, datum of

Average discharge. 18 years (1931-35, 1937-51), 5,122 of s .

Extremes . --Maximum discharge during year, 26,600 cfs May 31 (gage height, 12.27 ft); minimum, 2,630 cfs Jan. 9 (gage height, 5.56 ft).

1915-51: Maximum discharge, 47,200 cfs June 17, 1918 (gage height, 16.97 ft); minimum, 288 cfs Nov. 5, 1934 (gage height, 2.22 ft).

Maximum discharge known, 70,000 cfs (estimated) June 6, 1894, at former station at 

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

Remarks . Records excellent except those for periods of ice effect or no gage-height rec6737 which are fair. Some regulation by Jackson Lake (see p. 13 ), Henrys Lake (see 

preceding page), Island Park Reservoir (see p. 28), and Grassy Lake (see preceding 

page). Many diversions above station for irrigation.

Rating table, water year 1950-51, except periods of ice effect (gage

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

(Shifting-control method used May 13 to June 30)

5.5 

6.0 

7.0 

8.O 

9.0

2,540

3,500

6,370

9,790

13,500

1O.O 

11.0 

12.0 

12.9

17,500

21,600

26,000

30,000

Discharge, In cubic feet per second, water year October 1950 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

as

29

30

31

Total

Mean

Ao-ft

Oct.

4,900

5.150

5,030

4,900

4,810

4,840

4,940

5,000

5,000

4,940

4,840

4,720

4,720

4,380

4,490

4,460

4,490

4,550

4,460 

4,300

4,250

4,140

4,040 

3,920

5.850

4,070

4,330

4,410

4,640

4,690

4,810

142,070

4,583

281,800

Nov.

4,900

5,060

5,120

5,190

5,030

4,810

4,900

4,940

4,780

a4,900

4,690

4,870

4,970

5,000

*5,000

5,000

4,750

4,460

4,660 

4,720

4,640

4,750

5,060 

5,000

4,660

4,410

4,330

4,220

4,170

4,070

-

143,060

4,769

283,800

Dec.

4,100

4,300

4,440

4,490

4,520

4,300

4,000

4,000

4,750

a4,650

a4,600

a4,560

4,520

4,610

4,720

4,640

4,690

4,840

*4,810 

4,780

4,780

4,780

4,660 

4,460

4,520

4,520

4,300

4,410

4,460

4,580

b4,500

140,290

4,525

278,300

Jan.

b4, 100

b3,650

b3,350

b3,600

b3,950

b3,950

b3, 6OO

b3,100

2,810

3,270

3,710

b4,100

b4,500

4,440

4,520

4,550

4,690

*4,550

b4,300 

b4,150

b4,000

4,100

b4, 400 

b4, 600

4,870

b5,200

bS.OOO

b4,300

b3,700

b3,000

b3,030

125,090

4,035

248,100

Feb.

b^QSO

b3,100

3,190

3,400

4,750

5,280

5.47O

5,670

6,020

6,150

6,240

6,700

7,100

6,700

6,400

6,320

6,280

6,270

6,300 

*6,350

6,200

6,080

5,700 

5,540

5,920

6,300

6,200

6,100

_

-

-

158,780

5,671

314,900

Mar.

6,000

5,890

5,760

5,600

5,280

5,310

6,050

6,770

6,340

6,500

6,900

6,730

6,800

7,160

7,030

7,130

7,130

6,900

6,770 

*6,930

7,100

7,360

7.650 

7,500

7,330

7,590

7,550

7,390

7,390

7,360

7,430

210,390

6,787

417 , 300

Apr.

a7,650

a7 , 900

38, 250

a8, 700

a9,000

a9,500

9,860

10,300

10,800

11,100

10,500

9,150

8,870

9,150

10,500

11,500

11,000

11,000

12,400 

*13,800

14,200

13,400

12,100 

11,000

11,000

alO,600

alO,300

12,500

14, 100

15,000

-

525,150

10,840

644,900

May

15,100

13,400

a!2,200

alO,700

10 . 400

a!2,500

a 14, 000

alS.OOO

16,300

16,500

16,700

17,400

18, 900

19,500

17,600

16,100

15,800

16,900

18,700 

20, 100

*20,500

19,500

19,500 

20,000

21,000

21,900

21,600

21,500

23,100

25,300

26,500

555,400

17,850

*1,098

June

24.700

21,700

18,500

15,500

12,500

11,800

11,500

11,100

10,600

9,860

9,520

8.700

9,500

12,000

14,800

16,200

18,200

21,000

22,500 

22,500

*19,500

16,100

15,200 

14,400

15,200

14,800

15,800

13,400

13,800

13,400

-

452,080

15,080

896,700

July

15 . 400

13,000

12,100

11,500

11,500

11,500

11,500

11,200

10,500

9,080

7, 770

7,290

7,130

6,670

6,050

6,240

6,020

*6,050

5,760 

5,730

6,210

6,860

6,470 

5,730

5,280

4,810

4,810

4,970

6,730

7,560

8,150

247,560

7,986

491,000

Aug.

7,290

6,600

6,210

7,290

10, 600

12,200

12,200

12.600

12 , 300

11,700

10,700

9,470

»8,280

6,700

5,750

4,550

3,730

5.590

4,550 

4,780

4,870

5,540

6,400 

7,530

8,280

8,140

6,930

6,730

6,900

7,560

7,600

237,550

7,663

471,200

Sept.

7.590

6,960

6,600

5,760

5,510

4,720

4,200

4,070

4,220

4,940

*4, 840

5,060

5,550

5,280

4,840

4,580

3,900

3,620

5,570 

4,140

4,120

4,250

4,520 

4,460

4,360

4,440

4,440

4,380

4,410

4,550

-

143,280

4,776

284,200

Calendar year 1950: Max 27,300 Kin 1,750 Mean 7,471 Ae-ft 5,409,000

Water year 1950-51: Max 26,300 Mln 2,810 Mean 7,887 Ac-ft 5,710,000

* Discharge measurement made on this day.

* Expressed in thousands.

a No gage-height record; discharge estimated on basis of records for stations near Heise and Blackfoot.

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

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

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

for irrigation. Records available during each irrigation season from 1919 to 1951. The 

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

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

Discharge, in cubic feet per second May to September 1951

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Ac- ft

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

1.030

1,O6O

1,170

1,210

1,280

1,420

1,630

1,790

1,950

1,970

2,070

2,120

2,160

2,230

2,410

2,530

2,730

2,800

2,850

2,830

2,890

2,950

2,980

3,060

3,110

3,160

3,010 

3,000

3,110

3.250

3,220

72,980

2,354

144,800

June

3,140

3,060

2,890

2,86O

2.770

2,820

2,930

2,940

3,020

3,2OO

3,390

3,570

3,700

3,720

3,860

3,830

3,810

3,860

5.880

3,860

3,800

3,760

3,540

3,300

3,210

3,180

3,330 

3,460

3,620

3,640

101,950

3,398

202,200

July

3,690

3,750

3,780

3,720

3,810

3,79O

3,850

3,880

3,880

3,9OO

3,910

3,680

3,910

3,800

3,830

3,840

3,79O

3,800

3,940

3.960

3,950

3,920

3,800

3,810

3,790

3,840

3,860 

3,880

3,530

3,490

3,430

117,810

3,800

233,700

Aug.

3.320

3,310

3,290

3,280

2,890

2,890

2,800

2,700

2,290

2,34O

2,230

2,570

2,760

2,930

2,970

3,080

3,060

2,820

2,880

2,770

2,850

2,860

2,600

2,590

2,380

2,320

1.950 

2,210

2,410

2,510

2,500

84,340

2,721

167,300

Sept.

2,400

2,37O

2,450

2,740

2,780

2,820

2,870

2,990

3,030

3.180

3,090

2,920

2,780

2,720

2,620

2,540

2,480

2,440

2,460

2,480

2,480

2,340

2,220

2,200

2,160

2,100

2,070 

2,000

1,870

1.800

75,400

2,513

149,600

Calendar year : Max Min Mean Ae-ft

The season : Max - Min - Mean - Ac-ft 897,600
BLACKFOOT RIVER BASIN 47

Blackfoot River near Blackfoot, Idaho

Location. Lat 43°07'50", long. 112°28'35" (revised), at east quarter corner of sec. 28, 

T. 3 S., R. 34 E., on left bank 125 ft downstream from highway bridge, 2 miles upstream 

from mouth and 8 miles southwest of Blackfoot.

Drainage area. 1,295 sq mi (revised).

Records available. July 1913 to September 1951 (summer months only for many years).

Gage. Water-stage recorder. Altitude of gage is 4,420 ft (from river-profile survey). 

Frior to May 7, 1926, staff gages and May 8, 1926, to June 25, 1937, water-stage recorder at site half a mile upstream at different datum.

Average discharge.--17 years (1931-37, 1940-51), 151 cfs.

Extremes. Maximum discharge during year, 785 cfs May 5 (gage height, 6.61 ft); minimum, 

11 cfs July 20 (gage height, 1.25 ft).

1913-51: Maximum discharge, 868 cfs May 21, 1921; no flow on many days.

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

which are poor. Plow regulated by Blackfoot Marsh Reservoir (capacity, 413,000 acreft). Many diversions above station for irrigation. Most of flow during nonirrigation 

season and part of that during irrigation season is supplied by waste from Snake River 

canals.

Cooperations Gage-height record furnished by Office of Indian Affairs.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

428

554

559

558

558

553

546

529

517

524

516

478

425

385

389

429

426

428

a428

428

407

381

367

358 558"

391

439

506

544

541

559

14,509

468

28,780

Nov.

564

568

*516

392

343

287

210

191

178

252

280

329

333

325

291

270

305

333

349

343

.346

309

377

392

420

367

339

3^6

350

349

-

10,204

340

20,240

Dec.

356

a350

a350

350

358

321

314

*314

379

412

8400

a385

374

366

374

381

356

315

316

308

300

277

260

254

W

307

295

a290

a300

a305

a290

10,261

331

20,350

Jan.

a275 258"

217

205

200

190

180

175

*172

170

170

165

175

185

190

190

190

190

180

170

170

175

180

185

190

190

185

170

155

140

130

5,717

184

11,340

Feb.

T55" 120

2OO

260

310

*367

430

520

555" 600

472

475

*450

311

232

236

240

246

238

202

204

219

a230

a240

a230

a225

a220

a215

_

»

-

8,372

299

16,610

Mar.

a200

a200

a200

a200

a2OO

a200

a200

a210

*219

a200

a!90

aT95

206

*251

254

293

337

311

273

269

337

469

535

336

a340

344

316

267

259

269

8,476

273

16,810

Apr.

266 2"85

329

336

342

*378

420

466

411

523

580

*619

612

590

601

612

622

601

594

599

602

607

640

67O

*697

697

686

676

688

712

16,456

549

32,640

Calendar year 1950 : Max 695 Mln 22 Mean 286

May

726

736

751

770

T6T

743

739

741

*761

768

761

743

751

753

739

707

*657

612

564

546

544

522

481

422

363

367

341

346

242

5?2

309

18 , 608

600

36,910

June

255

*185

235

272

276

207

127

114

119

107

81

53

45

55

*70

69

62

70

62

75

64

64

93

145

217

194

149

109

87

71

3,732

124

7,400

July

111

123

112

93

 *71

65

50

27

30

18

18

21

31

32

39

37

24

21

 15IB"

39

51

69

45

36

18

20

27

58

173 *TBT

1,653

53.3

3,280

Aug.

151

175

162

166

213

290

312

418

482

*5§3"

246

125

85

97

96

85

69

*57

78

111

107

111

139

139

161

190

225

276

274

322

358

6,113

197

12,120

Sept.

357

1FS4"

181

98

68

62

51

42

43

42

48

57

73

79

78

79

*75

52

51

56

58

67

79

90

109

119

127

157

178

191

3,061

102

6,070 

Ac-ft 206,900

Water year 1950-51 : Max 770 Mln 15 Mean 294 Ac-ft 212,600

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Snake River near Blackfoot.

Mote. Stage-discharge relation affected by ice Jan. 4 to Feb. 10.
48 SNAKE RIVER MAIN STEM

Snake River near Blackfoot, Idaho

Location. Lat 43°07i, long. 112°31', In SE£ sec. 30, T. 3 S., R. 34 E., on right bank 

1,000 ft downstream from highway bridge, a quarter of a mile downstream from Blackfoot 

River, and 10 miles southwest of Blackfoot.

Drainage area. 11,310 sq mi.

Records available. June 1910 to September 1951. Published as "at Clough ranch, near 

Blackfoot" 1924-46.

Gage. Water-stage recorder. Altitude of gage is, 4,401 ft (from river-profile map). 

Prior to July 6, 1913, staff gages at practically same site and datum.

Average discharge. 25 years (1926-51), 3,899 cfs.

Extremes. Maximum discharge during year, 23,400 cfs May 31 (gage height, 10.34 ft); minimum, 916 cfs July 27 (gage height, 1.57 ft).

1910-51: Maximum discharge, 46,200 cfs June 18, 1918 (gage height, 14.80 ft); minimum, 111 cfs Nov. 10, 1934 (gage height, 0.80 ft).

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 39 cfs, supplied by ground-water inflow a short distance upstream.

Remarks. Records excellent. Some regulation by Jackson Lake (see p. 13 ), Henrys Lake 

(see p. 44 ), Island Park Reservoir (see p. 28 ), Grassy Lake (see p. 44 ), and 

Blackfoot-Marsh Reservoir, having a combined capacity of 1,483,000 acre-ft. About 

694,000 acres of land irrigated by diversions above station.

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

,990 

,740

,740

,670

,610

,610 

,690

,710

,670 

,710

,610

,820

,730

,540 

,520

,560

,540

,650 

,570

,410

,260

,080

,940 

,790

,760

,810

,350

,440

,630

,780

,920

13 ,650

,479

27 ,400

Nov.

5,030 

5,150

*5,230

5,190

5,090

4,860 

4,820

4,880

4,820 

5,170

5,030.

5,130

5,230

5,250 

5,230

5,210

5,110

4,940 

4,950

5,010

4,990

4,880

5,210 

5,190

5,010

4,760

4,590

4,540

4,440

4,590

149,330

4,978

296,200

Dec.

4,370 

4,370

4,480

4,610

4,650

4,370 

4,440

*4,080

4,710 

4,860

4,820

4,740

4,710

4,730 

4,880

4,620

4,820

4,880 

4,880

4,840

4,840

4,820

4,760 

4,670

4,630

4,650

4,460

4,260

4,480

4,820

4,670

144,140

4,650

285,900

Jan.

,320 

,990

,510

,320

,010

,080 

,880

,360

* ,980 

,77,0

,300

,720

,940

,310 

,200

,330

,460

,510 

,290

,150

,050

,950

,200 

,420

,470

,910

,260

,910

,190

,520

,860

124,170

4,005

246,300

Feb.

2,900 

2,950

3,100

3,260

4,110

*4,970 

5,860

5,940

6,360 

6,320

6,280

6,510

6,890

6,980 

6,640

6,300

6,140

6,180 

6,100

6,080

6,220

5,750

5,620 

5,620

5,500

5,900

6,200

6,040

_

_

-

156,720

5,597

310,800

Mar.

5,840 

5,750

5,770

5,500

5,460

4,970 

5^770

6,140

*6,490 

6,240

6,750

6,680

6,660

6,840 

6,980

6,980

7,080

6,930 

6,730

6,730

6,690

7,150

7,520 

7,520

7,200

7,150

7,270

7,270

7,200

7,200

7,220

205,880

6,641

406,400

Apr.

7,240 

7,460

7,730

8,220

8,730

*9,120 

9,780

10,200

10,700 

11,100

10,400

9,320

9,060

9,540 

10,300

11,500

11,500

11,300

12,100

13,100

13,900

13,600

12,600 

11,100

*10,700

10,400

10,600

11,300

13,500

14,000

-

320,040

10,670

634,800

May

14,000 

12,300

11,300

10,000

9.500

10, 900 

12,100

13,900

*15,100 

15,100

15,200

15,600

16,600

17,700 

16,600

14,700

13,900

14,500 

15,900

17,400

18,000

17,600

16,800

17,100

17,900

18,6OO

18,700

18,600

19,200

20,800

22,900

488,500

15,760

968,900

June

22.500 

 '20,000

17,600

14,200

11,400

10,000 

9,490

9,200

8,670 

7,950

7,150

6,080

6,180

7,860 

*10,600

12,100

13,600

16,100 

18,100

18 , 900

17,500

13 , 500

12,400

12,100

12,300

12,600

11,300

10,700

10,700

10,400

-

371,180

12,370

736,200

July

10,30O 

10,200

9,150

8,420

*8,220

8,000 

7,970

7,760

7,170 

5,840

4,710

3,990

3,720

3,400 

2,770

2,650

2,440

2,360 

2,140

1,860

2,010

2,670

3,050 

2,280

1,790

1,170

*996

1,055"

2,090

4,100

*4,800

139,046

4,485

265,800

Aug.

4,620 

3,980

3,520

3,860

6,400

9,290 

9,720

10,100

10,600 

*10,100

9,090

7,810

6,240

4,780 

3,620

2,580

1,550

*1.020 

1,690

2,420

2,400

2,710

*3,530 

4,490

5,600

5,880

5,710

4,860

4,780

5,200

5,540

163,690

5,280

324,700

Sept.

5.430 

5,6lO

4,640

3,530

2,860

2,430 

1,810

1,320

1,270

1,730

1,910

2,160

2,530

2,790 

2,680

2,470

*2,130

1,580 

1,420

1,550

1,980

2,160

2,570 

2,770

2,680

2,720

2,850

2,840

3,000

3,140

-

77,960

2,599

154,600

Calenda year 1950: Max 26,100 Mln 588 Mean 6,404 Ac-ft 4,636,000

Water y ar 1950-51: Max 22,900 Mln 996 Mean 6,793 Ac-ft 4,918,000

Discharge measurement made on this day.
PORTNEUF RIVER BASIN 49

Portneuf River at Topaz, Idaho

Location. Lat 42°38', long. 112°06 I , in sec. 23, T. 9 S., R. 37 E., on old bridge piling 

near left bank at upstream side of Oregon Short Line Railroad bridge, a quarter of a 

mile west of Topaz, l£ miles upstream from diversion dam of Portneuf-Marsh Valley Canal 

Co., 3 miles downstream from Dempsey Creek, and 6 miles southeast of McCammon.

Drainage area.--420 sq mi, approximately.

Records available.--January 1913 to September 1915, July 1919 to September 1951.

Gage!--Staff gage read once daily. Datum of gage is 4,917.0 ft above mean sea level, preTiminary, unadjusted. Prior to July 20, 1919, staff gage at site 200 ft downstream at 

datum 1.0 ft lower.

Average discharge. 32 years (1913-14, 1919-22, 1923-51), 195 cfs.

Extremes.--Maximum discharge observed during year, 434 cfs Feb. 10 (gage height, 2.60 ft); 

minimum observed, 136 cfs Sept. 19 (gage height, 1.20 ft).

1913-15, 1919-51: Maximum discharge observed, 902 cfs Apr. 3, 1913 (gage height, 

6.1 ft, site and datum then in use); minimum observed, 65 cfs Oct. 9, 1934 (gage height, 

0.81 ft).

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

Flow regulated by Portneuf-Marsh Valley Reservoir (capacity, 16,410 acre-ft) and Chesterfield Reservoir on Twentyfourmile Creek (capacity, 685 acre-ft). Diversions above 

station for irrigation of about 22,000 acres.

Rating table, water year 1950-51 (gage height, in 

feet, and discharge, in cubic feet per second) 

(Shifting-control method used July 7 to Sept. 30)

1.0 

1.5 

2.0 

2.7

132

231

328

454

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

247

239

223

227

223

218

218

210

202

202

218

223

220

218

216

218

220

220

216

208

204

208

208

212

216

216

220

216

216

214

218

6,734

217

13,360

Nov.

223

223

214

210

210

208

206

202

198

198

202

202

*202

202

202

214

218

223

227

231

223

218

214

210

a218

a210

a205

a205

a200

a200

-

6,318

211

12,530

Dec.

a!95

192

196

196

192

192

200

T96

192

192

*192

192

192

192

192

192

192

190

188

188

190

192

192

190

188

180

152

184

184

184

180

5,899

190

11,700

Jan.

184 182"

180

180

180

176

176

176

176

176

174

176

176

176

174

172 rm

176

176

176

176

176

176

180

180

176

174

176

172

180

176

5,480

177

10,870

Feb.

172

185

176

172

176

*182

284

359

414

454

333

364

231

227

214

210

210

235

223

231

235

239

227

223

210

206

214

223

_

_

-

6,804

243

13,500

Mar.

218

214

210

206

194

194

198

194

198

196

198

194

194

*202

210

227

223

235

251

255

267

282

290

290

267

263

259

243

249

265

253

7,139

230

14,160

Apr.

241

245

245

245

249

253

261

269

253

249

265

269

288

292

288

300

300

303

*315

303

296

288

284

280

280

277

273

280

330

315

-

8,339

278

16,540

May

309

313

298

301

309

286

301

305

305

298

309

309

309

298

305

301

298

286

*296

301

279

275

275

286

284

290

271

267

263

257 259"

9,043

292

17,940

June

251

251

247

243

223

210

227

229

251

261

271

275

275

263

263

251

*251

247

241

229

227

259

261

269

271

267

261

257

247

239

-

7,517

251

14,910

July

229

216

223

231

233

233

235

239

237

241

231

223

210

24T

245

237

243

243

239

*239

243

282

275

271

259

241

241

237

241

233

241

7,432

240

14,740

Aug.

243

239

247

?43

235

223

216

216

212

216

220

208

202

194

194

202

194

192

T92

196

196

192

192

*202

198

200

200

212

208

209

204

6,497

210

12,890

Sept.

202

T72

168

168

160

157

155

155

151

151

149

147

145

143

143

143

140

140

140- 136

149

157

153

153

153

149

149

149

149

149

-

4,575

152

9,070

Calendar year 1950: Max 657 Min 143 Mean 277 Ac-ft 200,840

Water year 1950-51: Max 434 Min 136 Mean 224 Ac-ft 162,210

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for station

; Pocatello.
50 PORTNEUF RIVER BASIN

Portneuf River at Pocatello, Idaho

Location. Lat 42°51'40", long. 112°27'25", in NE^NE^ sec. 34, T. 63., R. 34 E., on right 

bank"30 ft upstream from bridge at Pocatello and 2.5 miles upstream from Pocatello 

Creek. Prior to Oct. 17, 1950, at site 0.8 mile downstream.

Drainage area. 1,000 sq mi, approximately.

Records available. May 1897 to October 1899, August 1911 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 4,430 ft (from topographic map). May 

18, 1897, to Oct. 14, 1899, staff gage at site 0.6 mile upstream at different datum. 

Aug. 31, 1911, to May 14, 1927, and Oct. 13, 1927, to June 14, 1928, staff gages at 

sites near Carson Street bridge 0.8 mile downstream at different daturas. May 14, 1927, 

to Oct. 13, 1927, and June 14, 1928, to Sept. 28, 1950, water-stage recorder at sites 

near Carson Street bridge 0.8 mile downstream at different daturas.

Average discharge. 38 years (1912-16, 1917-51), 258 cfs.

Extremes. Maximum discharge during year, 630 cfs Feb. 11 (gage height, 6.10 ft); minimum, 

40 cfs July 5, 7 (gage height, 3.99 ft).

1897-99, 1911-51: Maximum discharge, more than 2,000 cfs sometime during period 

May 13 to June 14, 1917; minimum, 5 cfs July 31, 1942, from rating curve extended below 

40 cfs.

Remarks.--Records good except those for periods of ice effect, which are fair. Flow reglated by Portneuf-Marsh Valley Reservoir (capacity, 16,410 acre-ft) and Chesterfield 

Reservoir (capacity, 685 acre-ft). Diversions above station for irrigation of about 

33,000 acres.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

4.0 

4.2 

4.5 116

5.0 

5.5 

6.1

246

412

630

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

g318

*g324 

g291

g285

g272

g304

g294

g294

g285

g285

g285

g285

g281

290

300

g311

314

308

304

308

301

281

285

308

311

314

321

351

354

347

337

9,448

305

18,740

Nov.

334

354 

364

351

341

337

334

331

330

321

318

334

341

*344

351

347

347

368

409

409

402

392

371

361

364

358

354

354

347

341

10,609

354

21,040

Dec.

337

334

331

347

378

361

341

347

358

361

*351

341

337

337

331

328

328

328

324

321

318

318

314

314

308

304

301

301

298

298

301

10,196

329

20,220

Jan.

291

288 

' 268

b250

b280

b280

b260

249

294

301

308

b290

291

294

294

298

301

311

308

301

294

304

298

308

311

314

318

314

215

b290

b3JO

9,043

292

17,940

Feb.

b320

b^20 

b325

*b330

334

378

416

464

540

607

615

574

551

500

436

405

388

381

375

354

347

354

364

381

388

385

381

*375

_

_

-

11,588

414

22,980

Mar."

364

364 

368

361

364

364

368

361

*378

392

385

375

371

381

398

422

412

402

398

402

426

472

493

472

464

472

472

458

444

440

444

12,687

409

25,160

Apr.

440

450 

458

475

496

507

522

544

551

555

536

525

529

562

592

600

600

596

607 *607

596

570

551

511

458

450

419

412

433

486

15,638

521

31,020

May

500

482 

464

458

450

447

447

478

493

458

430

426

447

430

398

368

347

341

*328

321

311

298

265

246

227

203

176

181

168

165

165

10,918

352

21,660

June

168

153 

148

144

144

137

116

110

90

68

82

92

97

94

101

88

90

*83

76

72

76

78

77

78

80

74

77

78

68

62

-

2,901

96.7

5,754

July

56

53 

. 53

48

45

45

44

46

53

51

44

48

51

51

48

48

49

51

50

*51

51

50

57

68

70

72

77

87

92

94

114

1,817

58.6

3,604

Aug.

106

112 

106

129

129

135

144

144

133

129

122

116

112

114

114

108

99

99

106

112

106

163

*T26

137

137

139

142

137

139

160

160

3,915

126

7,765

Sept.

160

163 

153

155

144

142

137

131

131

131

124

120

116

112

114

116

110

110

112

108

106

l5£

110

114

110

110

110

112

116

118

-

3,701

123

7,341

Calendar year 1950: Max 895 Min 108 Mean 401 Ac-ft 290,100

Water year 1950-51: Max 615 Min 44 Mean 281 Ac-ft 203,200

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

g Computed from once-daily staff-gage reading.
SNAKE RIVER MAIN STEM 51

American Falls Reservoir at American Falls, Idaho.

Location. Lat 42°46', long. 112°53', In sec. 30, T. 7 S. , R. 31 E., near right end of 

dam at outlet gates of reservoir on Snake River at American Falls.

Drainage area. 13 .580 sq mi.

Records available. March 1926 to September 1951.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Bureau of 

Reclamation).

Extremes.--Maximum contents during year, 1,729,000 acre-ft June 26 (elevation, 4,355.02 

ft); minimum, 926,840 acre-ft Oct. 1 (elevation, 4,338.63 ft).

1926-51: Maximum contents, that of June 26, 1951; minimum since full capacity was 

attained on July 13, 1927, 17,200 acre-ft Oct. 22, 1931 (elevation, 4,299.72 ft).

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-ft between 

elevations 4,295.66 ft (bottom of outlet gate) and 4,354.50 ft (top of spillway radial 

gates). Small amount of dead storage. Water is used for irrigation by canals diverting from Snake River at Minidoka and Mllner Dams. Contents given herin are computed 

from mean daily elevations; all available for release.

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

Contents, In thousands of acre-feet, water year October 1950 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.

928

930

936

942

948

950

961

969

972

978

985

991

998

1,004

1,009

1,016

1,021

1,026

1,034

1,039

1,045

1,054

1,063

1,071

1,076

1,081

1,084

1,094

1,104

1,114

1,122

NOV.

1,129

1,140

1,147

1,156

1,161

1,174

1,180

1,197

1,204

1,209

1,215

1,225

1,237

1,242

1,252

1,258

1,267

1,276

1,286

1,301

1,308

1,313

1,326

1,335

1,344

1,354

1,365

1,372

1,379

1,384

-

Dec.

1,384

1,393

1,400

1,407

1,421

1,427

1,431

1,439

1,444

1,454

1,466

1,469

1,475

1,480

1,483

1,489

1,496

1,505

1,511

1,514

1,519

1,522

1,526

1,533

1,543

1,546

1,549

1,551

1,555

1,554

1,563

Jan\

1,569

1,569

1,569

1,576

1,578

1,582

1,586

1,589

1,586

1,581

1,577

1,573

1,569

1,566

1,565

1,561

1,560

1,559

1,556

1,555

1,554

1,550

1,545

1,539

1,533

1,527

1,522

1,519

1,512

1,503

1,494

Feb.

1,485

1,475

1,464

1,456

1,451

1,448

1,448

1,449

1,451

1,452

1,451

1,451

1,451

1,451

1,452

1,451

1,450

1,446

1,445

1,444

1,442

1,440

1,437

1,434

1,431

1,429

1,427

1,425

_

.

-

Mar.

1,424

1,421

1,416

1,414

1,409

1,408

1,402

1,402

1,397

1,397

1,396

1,395

1,394

1,393

1,391

1,388

1,391

1,392

1,391

1,390

1,390

1,383

1,388

1,390

1,390

1,387

1,389

1,391

1,391

1,389

1,389

Apr.

1,391

1,392

1,392

1,394

1,396

1,398

1,402

1,405

1,408

1,423

1,425

1,434

1,440

1,452

1,461

1,470

1,477

1,488

1,501

1,517

1,529

1,546

1,561

1,572

1,583

1,591

1,599

1,608

1,618

1,631

-

May

1,632

1,641

1,648

1,646

1,644

1,640

1,635

1,641

1,653

1,664

1,673

1,674

1,674

1,679

1,676

1,670

1,663

.1,658

1,658

1,658

1,663

1,661

1,656

1,648

1,643

1,644

1,644

1,638

1,642

1,639

1,647

June

1,661

1,671

1,674

1,675

1,670

1,668

1,660

1,659

1,659

1,657

1,655

1,652

1,646

1,643

1,642

1,645

1,652

1,661

1,677

1,697

1,714

1,724

1,721

1,717

1,722

1,728

1,726

1,721

1,722

1,722

-

July

1,721

1,721

1,720

1,714

1,713

1,709

1,703

1,698

1,693

1,692

1,679

1,668

1,657

1,644

1,631

1,617

1,603

1,588

1,573

1,554

1,539

1,524

1,510

1,494

1,481

1,466

1,451

1,434

1,419

1,406

1,397

Aug.

1,389

1,380

1,370

1,363

1,356

1,355

1,356

1,361

1,367

1,372

1,378

1,377

1,374

1,369

1,360

1,347

1,334

1,320

1,305

1,292

1,280

1,266

1,256

1,246

1,243

1,240

1,237

1,236

1,232

1,226

1,225

Sept.

1,222

1,218

1,213

1,207

1,199

1,190

1,179

1,162

1,153

1,140

1,127

1,119

1,110

1,102

1,096

1,090

1,083

1,075

1,066

1,061

1,054

1,048

1,045

1,038

1,033

1,029

1,030

1,024

1,022

1,021

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Oct. 31...................

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

Calendar year 1950. .....

May 31...................

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

Water year 1950-51. . ....

Elevation 

(feet)

4,338.60

4,343.13

4,352.01

-

4,350.72

,349.39

,348.68

,353.25

,353.54

,354.89

,348.84

,340.88

-

Contents 

(acre-feet)

925,620

1,121,550

1,562,900

-

1,425,390

1,389,200

1,630,520

1,646,550

1,397,270

1,021,300

-

Change In contents 

during month 

(acre-feet)

_

+195,930

+178,740

+353,670

-68,440

-69,070

-36,190

+241,320

+16,030

+75,470

-324,750

-203,280

+95,680
52 SNAKE RIVER MAIN STEM

Snake River at Neeley, Idaho

Location (revised) Lat 42°46'20", long. 112°52'45", in Stfir sec. 31, T. 7 S. , R. 31 E., 

on right bank 400 ft upstream from Fish Hatchery buildings and 0.9 mile downstream from 

American Falls Dam. Records computed to show flow at former site in sec. 11, T. 8 S., 

R. 30 E. , half a mile north of Neeley and 2-| miles downstream from present site, by 

adding inflow between sites.

Drainage area. 13,600 sq mi, approximately, excluding non-tributary area on Snake River 

plains.

Records available.--March 1906 to September 1951.

Gage. Water-stage recorder. Datum of gage is 4,241.6 ft above mean sea level (levels by 

Bureau of Reclamation). Prior to Aug. 7, 1910, staff gages and Aug. 8, 1910, to June 

6, 1930, water-stage recorder at site 2^ miles downstream at different datum. June 7, 

1930, to Mar. 19, 1945, water-stage recorder at site 0.4 mile upstream from present 

site and at datum 0.4 ft higher than present datum.

Average discharge . 25 years (1926-51), 6,600 cf s.

Extremes. Maximum discharge during year, 22,400 cfs May 15 (gage height, 8.62 ft); minimum, 134 cfs Nov. 21 (gage height, 1.49 ft).

1906-51: Maximum daily discharge, 48,400 cfs June 20, 1918 (gage height, 13.5 ft, 

site and datum then in use); minimum, 50 cfs Oct. 22, 23, Nov. 14-16, 1941.

Remarks. Records excellent. Flow regulated by American Falls Reservoir (see preceding 

page) and other reservoirs, having a usable capacity of 3,200,000 acre-ft. About 

740,000 acres of land irrigated by water diverted from river and tributaries upstream 

from station.

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

Rating table, water year 1950-51 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used June 20 to July 14)

1.5 

1.7 

2.0 

2.5

134

165

240

470

3.0 

3.5 

4.0 

5.0

830

1,350

2,050

4,630

6.0 

7.0 

8.0 

9.0

8,770

13,600

19,100

25,000

Discharge, in cubic feet per second, water year October 195O 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

Total

Mean

Ac-ft

Oct.

5.780 

5,240

4,470

4,220

4,600

4,570

4,550

4,540

4,820

5,430

4,570

*4,570

4,570

4,600 

4,600

4,600

4,600

4,630

4,630

4,280

3,970

283 

4,TJ30~

4,010

3,970

4,000

4,040

4,040

295

4,000

3,990

130,498

4,210

258,800

Nov.

3,930 

3,990

4,010

4,010

303

4,000

3,990

3,980

3,960

3,910

3,970

200

3,940

3,940 

3,940

*3,980

3,980

3,970

195

3 /SOU

3,900

3,960 

3,960

3,980

4,010

198

4,040

4,060

4,080

4,450

-

104,736

3,491

207,700

Dec.

4,540 

4,560

1,780

4,580

4,530

4,570

4,590

4,560

4,550

215

5,330

5,330

5,340

*5,370 

5,370

5,370

1,540

5,370

5,470

5,870

5,870

5,900 

5,770

569

5,600

5,820

5,760

5,690

5,690

5,780

2,180

143,462

4,628

284,600

Jan.

6,330 

5,730

5,670

5,690

5,690

5,660

2.740

77120"

8,280

8,230

8,230

*8,230

8,230

8,280 

8,280

8,280

8,280

8,280

8,280

8,230

8,320

9,510 

10.600

10, 600

10,600

10,500

10,600

10,500

10,400

10,300

10,300

255,970

8,257

507,700

Feb.

1O, 3OO 

10.400

lO.'SOO

10,400

10,400

10, 300

10,300

10, 300

10, 300

10,400

10,400

10,300

*10,300

10, 300 

10,300

10, 300

10,300

10, 300

10, 300

10,300

10.200

10,266 

10,200

10,200

10,200

10,200

10, 200

10,200

_

-

288,100

10,290

571,400

Mar.

10,200 

10,200

10,200

10,200

10,200

10.100

10,100

10,100

10,100

10,100

10,100

10,100

10,100

*10,100 

10,100

10,100

10,100 10,100

10,100

10,100

10,100

10, 100 

10,100

10,100

10,100

10,100

10,100

10, 100

10,200

10,200

10,200

313,900

10,130

622,600

Apr.

10,200 

TO, 200

10,200

10,200

10,200

10,200

10,200

10,200

10,200

10,200

9,180

*8,540

7,870

7.450 

7,470

9,180

8,540

7,520

7,560

7,780

8,820

8,820 

8,860

8,860

8,910

8,910

8,910

8,910

8,910

12,600

-

275,580

9,186

546,600

May

15,100 

15,200

15,200

15,200

15,100

15,100

13,300

12.100

12,100

12,200

13,200

17,600

18,500

20,500 

22.300

*20, 900

18,700

18,000

18,000

18,000

20,000

21,400 

21,400

21,300

21,300

21,200

21,700

21,500

21,300

21,300

19,500

558,200

18,010

$1,107

June

18,500 

*18,600

18.700

17,700

16,200

15,600

14,200

12,300

11,500

11,600

11, 300

11.200

11,200

*11,300 

11,400

11,400

11,400

11,500

11,300

11, 200

12,400

16,500 

16,200

12,900

11,500

14,400

16,400

14,600

12,900

12,600

-

408,500

13,620

810,200

July

12,500 

12,500

12,600

12,400

12,000

*11,800

12,200

12,500

12,400

12,800

12,500

12,300

12,200

12,200 

12,200

12,300

12,400

*12,500

12,500

12,600

12,800

12.900 

12,700

12,600

11.200

12,500

12,600

12,800

12 , 600

*11,800

11,700

383,600

12,370

760,900

Aug.

11,900 

11,700

11,500

11,200

11,100

11,000

10,600

10, 300

*10,200

10,200

10,500

11,200

11,600

12.500 

12,000

11,800

*11,800

11,800

11,700

11,700

11,700

11,600 

11,200

10,600

*10,100

9,650

9,650

9,890

9,940

10,100

10,200

340,730

10,990

675,800

Sept.

* 10, 300 

10,500

10,600

10. 700

10,600

10,600

10,600

10,600

10,600

10,600

10,600

10,200

9,700

9,280 

8,860

8,720

8,680

*8,680

8,360

8,140

8,140

7,960 

7,870

7,870

7,740

7,560

7,000

6,660

6,660

6,660

-

271,040

9,035

537,600

Calendar year 1950: Max 28,900 Min 195 Mean 8,898 Ac-ft 6,442,000

Water year 1950-51: Max 22,300 Min 195 Mean 9,519 Ac-ft 6,891,000

* Discharge measurement made on this day.

* Expressed in thousands.
RAFT RIVER BASIN 53

Clear Creek near Naf, Idaho

Location. Lat 41°58'15", long. 113°17'15", in NE-jSW^ see. 1, T. 14 N., R. 13 W., Salt Lake 

meridian, on right bank 2 miles south of Utah-Idaho State line, 3 miles south of Naf, 

and 20 miles upstream from mouth.

Drainage area. 19 sq mi, approximately.

Records available. January 1910 to June 1911 (fragmentary), June to December 1912 (gage 

heights only), November 1944 to September 1951.

Gage Water-stage recorder and concrete control. Altitude of gage is 5,400 ft. Prior to 

llecember 1912, staff gage at site 30 ft upstream at different datum. November 1944 to 

Mar. 28, 1950, water-stage recorder at site 600 ft upstream at different datum, above 

one small diversion.

Average discharge.--? years (1944-51), 10.8 cfs.

Extremes. --Maximum discharge during year, 112 cfs May 28 (gage height, 2.03 ft); minimum., 

0.5 cfs Dec. 26.

1910-11, 1944-51: Maximum discharge observed, 180 cfs May 13, 1910; minimum, 0.2 

cfs Aug. 15, 1949, Aug. 23, 24, 1950, caused by irrigation diversion.

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

which are fair. Three small diversions above station for irrigation.

Rating table, water year 195O-51 (gage height, in 

feet, and discharge, in cubic feet per second)

1.1

1.2

1.3

1.4

0.7

2.4

7.1

13

1.6 

1.8 

2.0

33

65

105

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

2.1

*2.1

2.1

2.1

1.9

1.9

2.1

2.1

2.1

2.1

1.9

1.9

1.9

1.9

5.4

2.4

2.1

2.1

2.1

2.1

2.4

2.1

2.1

2.4

2.7

2.4

2.4

2.4

2.7

2.1

3.0

69.1

2.23

137

Nov.

3.4

4.8

3.4

3.0

2.7

2.7

2.7

3.0

*1.7

1.7

2.1

2.4

2.4

2.4

2.1

2.1

2.4

3.0

2.7

3.0

3.4

2.4

2.1

2.1

2.1

2.1

2.1

2.1

1.9

2.1

-

76.1

2.54

151

Dee.

1.9

1.7

2.7

277

1.9

1.7

2.4

*2.1

2.1

1.9

2.1

2.1

1.9

1.9

1.9

1.9

1.9

1.9

1.7

1.7

1.5

1.3

1.5

1.5

1.5

1.5

1.7

1.7

2.1

1.7

1.7

57.8

1.86

115

Jan.

(*)

2

62

2

123

Feb.

(*)

2

-1

-

-

56

2

111

Mar.

(*)

> 2

2.1

2.1

2.2

2.2

2.3

2.3

2.4

2.4

2.5

2.6

2.7

65.8

2.12

131

Apr.

2^8

2.9

3.1

*3.4

3.8

4.3

4.8

5.4

6.5

6.5

5.9

6.5

7.7

8.9

8.3

8.3

8.9

9.5

9.5

9.5

8.9

8.9

8.9

9.5

8.9

11

9.5

11

13

11

-

227.1

7.57

450

May

*11

10

10

11

12

15

19

19

19

21

24

26

24

21

19

19

22

*27

37

49

49

48

60

79

83

91

99

~95 105

87

75

1,286

41.5

2,550

June

63

*51

43

36

32

30

29

28

27

25

25

27

29

39

*49

60

60

53

46

43

40

34

32

30

*32

31

29

29

28

27

-

1,107

36.9

2,200

July

26

25

24

23

20

17

15

14

15

15

15

14

12

12

11

11

12

12

11

*9.5

9.5

8.3

7.7

8.3

7.7

7.1

7.1

7.1

7.7

7.1

6.5

397.6

12.8

789

Aug.

5.9

5.4

7.7

12

10

8.9

7.7

7.1

5.9

5.4

2.7

4.3

*4.3

4.3

3.8

3.8

3.4

3.0

1.2

2.7

5.4

5.9

3.0

5.4

3.8

2.7

*2.4

2.7

2.7

3.0

2.7

149.2

4.81

296

Sept.

2.4

2.4

2.1

2.1

1.9

1.7

1.7

1.5

1.5

1.5

1.7

1.9

1.9

1.7

1.5

1.5

1^2

1.3

1.2

1.2

1.5

1.5

1.5

1.5

*1.3

1.3

1.5

1.3

1.5

1.3

-

48.1

1.60

95.4

Calendar year 1950: Max 84 Min - Mean 11.1 Ac -ft 8,010

Water year 195O-51: Max 105 Min - Mean 9.87 Ac-ft 7,150

Peak discharge (base, 70 cfs). --May 28 (2 a.m.) 112 cfs (2.03 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 23-25, Jan. 1-13. No gage-height record Jan.

14 to Apr. 3j discharge estimated on basis of 4 discharge measurements and weather records.
54 RAFT RIVER BASIN

Raft River at Peterson Ranch, near Bridge, Idaho

Location. Lat 42°04', long. 113°27', in sec. 5, T. 16 S., R. 26 E., on left bank 100 ft 

upstream from One Mile Creek, 400 ft downstream from road bridge, 7^ miles southwest of 

Bridge, and 16 miles south of Malta.

Drainage area.--412 sq mi.

Records available.--September 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 4,980 ft (by barometer).

Average discharge. 5 years, 21.8 cfs.

Extremes. Maximum discharge during year, 1,090 cfs Feb. 5 (gage height, 4.52 ft), from 

rating curve extended above 200 cfs on basis of slope-area determination of peak flow; 

minimum, 3.6 cfs Jan. 6 (gage height, 1.10 ft), caused by ice Jam upstream.

1946-51: Maximum discharge, that of Feb. 5, 1951; minimum, 1.2 cfs Jan. 13, 1950 

(gage height, 0.90 ft), caused by ice jam upstream.

Remarks. Records good. Diversions above station for irrigation.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.2

1.3

1.4 

1.6 

1.9

5.8

8.9

14

28

54

2.2 

2.6 

3.0 

3.4 

3.8

90

152

230

335

490

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

8.3

8.0

8.3

8.0

8.3

8.0

8.0

8.3

8.0

8.0

8.3

8.3

8.3

8.3

8.3

8.0

7.7

7.7

8.0

8.0

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.6

9.9

255.3

8.24

506

Nov.

9.4

9.4

8.9

8.6

876

9.4

10

10

1O

*9.4

9.9

11

11

11

11

11

11

13

15

17

18

15

16

16

15

15

14

13

11

12

-

362.6

12.1

719

Dec.

12

12

12

19

20

16

2O

20

*21

2O

21

21

21

20

23

22

22

21

21

23

22

20

19

19

18

18

16

16

18

20

18

591

19.1

1,170

Jan.

13

15

16

15

15

14

13

15

12

12

13

14

14

14

15

16

16

16

14

13

14

15

15

16

34

28

28

23

19

16

14

504

16.3

1,000

Feb.

12

*13

13

61

*469

319

170

235

128

91

100

*77

56

44

43

43

4O

42

34

33

34

38

37

35

34

36

31

28

_

-

-

2,296

82.0

4,550

Mar.

26

*31

29

31

31

28

31

36

38

28

26

26

32

28

34

49

32

28

32

45

76

75

47

40

43

48

48

39

35

37

41

1,168

37.7

2,320

Apr.

38

44

58

70

76

82

84

82

84

89

84

84

84

87

86

82

*81

80

80

77

73

71

71

71

75

71

69

77

11-

2,238

74.6

4,440

May

82

81

*76

71

67

64

64

91

85

84

91

108

118

157

91

85

86

86

84

91

96

*91

82

84

85

89

84

85

98

104

86

2,696

87.0

5,350

June

84

15

75

71

63

62

55

49

43

46

39

35

46

39

*32

28

26

29

26

23

22

20

20

18

18

18

17

15

14

13

-

1,126

37.5

2,230

July

13

15

12

10

10

10

10

9.9

9.9

9.4

9.4

9.9

9.4

8.3

8.3

8.6

8.9

8.9

*8.9

9.4

9.9

9.4

8.9

8.6

8.3

8.3

8.6

8.6

8.6

8.9

8.9

293.2

9.46

582

Aug.

8.6

6.6

10

12

IS

12

11

10

9.4

8.9

8.9

8.5

575

8.3

8.5

8.5

8.5

8.5

8.6

8.9

9.9

9.4

8.9

9.4

9.9

8.9

*8.6

8.5

8.6

9.4

9.9

288.2

9.50

572

Sept.

10

10

9.9

9.9

9.9

9.9

9.4

8.6

179

8.6

8.6

8.9

9.9

9.4

8.9

8.6

8.6

8.6

8.6

8.9

9.4

9.9

9.9

9.9

9.9

9.9

9.9

9.9

9.9

-

285.7

9.46

565

Calendar year 1950 : Max 51 win 5 - 8 Mean 18.9 Ac-ft 13,670 

Water year 1950-51 : j^ 469 Min 7.7 Mean 33.2 Ac-ft 24,000

* Discharge measurement made on this day.
SNAKE RIVER MAIN STEM 

Lake Walcott near Minidoka, Idaho

55

Location. Lat 42°40', long. 113°29' , in sec. 1, T. 9 S., R. 25 E., on south wall in 

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

Drainage area. 15,700 sq. mi.

Records available. April 1909 to September 1951.

Gage. Staff gage and glass tubes connected to lake through pipes read at 8 a.m. and

4 p.m. Datum of gage is 4,200 ft above datum of Bureau of Reclamation, which is 49.52 

ft below mean sea level. Prior to Feb. 1, 1941, hook gages at approximately same site 

at same datum.

Extremes. Maximum contents during year, 101,570 acre-ft May 2 (gage height, 45.53 ft); 

minimum, 60,200 acre-ft Dec. 25 (gage height, 41.90 ft).

1909-51: Maximum contents, 110,740 acre-ft Aug. 8, 1922 (gage height, 46.28 ft); 

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

Remarks.--Reservoir is formed by rock-fill dam with concrete core; storage began in 1906. 

Cacpaclty, 107,240 acre-ft between gage heights 36.00 ft ( sill of powerhouse penstock) 

and 46.00 ft (top of flashboards). Dead storage below gage height 36.00 ft, about 

115,000 acre-ft. Water used for power development and irrigation on Minidoka project 

of Bureau of Reclamation. Co'ntents given herein are above gage height 36.0 ft. Figuree 

of daily contents computed from mean of twice-dally readings.

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

Contents, In acre-feet, water year October 1950 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.

91,920

91,23O

91,570

90,760

87,850

86,330

87,730

87,96O

86,570

88,20O

88.55O

88,430

87,960

87,38O

87, ISO

87,270

85,640

84,940

85,170

85,17O

86,450

86,330

80,830

82,410

83,770

85,050

84,820

86,800

87,270

82,520

83,430

Nov.

84 , 940

85,870

86,800

88,430

87,500

82,860

84,470

85,400

87,O30

87,730

88,900

88,20O

83,540

84,240

85,870

85,640

89,920

87,270

86,100

90,950

78,130

76,100

74,970

73,390

69,410

66,770

61,940

63,590

65,230

66,770

-

Dec.

67,650

68,530

68,090

63,040

66,440

66,990

67,21O

68,090

68,310

66,440

6O,850

62,820

65,010

66,000

67,430

68,420

67,210

62,820

64,9OO

66,440

67,430

67,98O

68,310

66,220

64,800

61,500

63,040

65,010

66,550

67,87O

66,99O

Jan.

64,140

66,66O

68,530

69,190

69,630

70,070

68,420

67,870

72,720

75,420

75,980

75,980

76,320

76,550

76,440

76,100

76,100

76,320

75,420

75,870

76,100

76,320

78,350

79,030

79,030

78,800

79,260

79,260

78,130

78,350

78,350

Feb.

78,240

78,350

78,800

79,260

80,040

79,370

79,930

80,380

79,820

79,710

79,930

79,370

79,140

79,030

78,800

78,350

78,800

79,030

78;58O

78,350

78,800

81,170

82,190

83,310

83,770

84,240

87,730

89,360

_

_

-

Mar.

90,530

89,600

89,130

90,O6O

90,180

90,530

89,6OO

90,530

89,010

90,530

90,290

90,180

89,830

89,480

89,710

87,960

90,290

89,940

89,480

89,130

88,550

86,800

89,360

89,600

9O,180

88,660

88,310

89,130

89,360

88.43O

89.25O

Apr.

90,180

89,830

89,360

89,360

89,130

89,480

90,060

90,410

88,080

89,830

88,430

86,330

86,330

87,150

86,570

86,570

91,920

92,390

93,O90

93,550

94,490

96,87O

97,840

97,590

98,080

97,350

97,350

97,350

97,84O

97,84O

-

May

98,800

1O0.49O

99,040

97,110

98 , 20O

98,320

97,350

96,870

97,110

96,99O

95,670

95,310

96,630

97,110

96,630

96,750

95,790

95,430

95,070

94,49O

94,720

94,140

93,550

93,900

94,020

95,550

95,670

94,25O

95,910

94,720

95,550

June

95,430

95,550

95,670

95,550

95,91O

95,430

96, ISO

95,430

95,670

95,310

95,070

94,720

94,72O

94,950

94,720

94,72O

94,490

94,250

94 , 950

94,72O

94,020

95,670

96,630

95,670

96,990

97,59O

97,110

95 , 910

95,670

94,370

-

July

93,670

93,090

94,840

94,020

94,950

94,720

94,140

93.90O

93,900

95,91O

95,430

95,790

95,910

95,670

95,790

95,430

95,430

95,670

95,430

94,950

95,180

95,910

96,63O

96,870

94,720

94,020

94,020

94,490

96,150

96,630

95,550

Aug.

96,630

96,030

95,910

95,670

95,670

95,790

96,O3O

95,670

95,670

95,180

94,370

93,550

93,320

93,550

94,720

94,840

95,180

95,180

95,430

95,430

95,550

95,910

96,150

96,150

96,390

96,390

95,180

95,180

94,250

94,250

94,490

Sept.

94,490

94,370

94,250

94,600

94,370

94.O2O

94,140

92,62O

94,250

94,490

92,860

95,310

95,180

95,180

95,550

95,180

94,490

94,720

94,720

93,550'

93,790

94,020

94,490

96,150

95,550

95,67O

96,630

95,670

94,950

94,020

-

Monthly gage height and contents, water year October 195O to September 1951

Date

Calendar year 1950. .....

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

July 31 ...................

Aug. 31...................

Water year 1950-51. . ....

Oage-height 

(feet)

44.83

42.52

-

43.54

44.50

44.49

45.22

45.03

44.93

44.94

-

Contents 

(acre-feet)

93,200

-

89,250

95,550

94,370

95,550

94,490

-

Change In contents 

during month 

(acre-feet)

_

+220

-1,210

-110

-2,290

-1,180

+1,180

-1,060

+S20
56 DIVERSIONS PROM LAKE WALCOTT

North Side Minidoka Canal near Minidoka, Idaho

Location. Lat 42°40', long. 113"29", in sec. 1, T. 93., R. 25 E., on left bank 600 ft 

downstream from headgates at Minidoka Dam and 6 miles south of Minidoka.

Records available. May 1909 to September 1951.

Gage. Water-stage recorder. Datum of gage is 4,180.33 ft above mean sea level (Bureau of 

Reclamation benchmark). April to November 1910 at datum 0.08 ft higher.

Extremes. Maximum discharge during year, 1,700 cfs July 10-13; maximum gage height, 9.83 

ft July 10; no flow during winter.

1909-51: Maximum discharge, 1,780 cfs July 11, 1943; maximum gage height, 10.00 ft 

May 7, 1943; no flow during winters.

Remarks.--Records excellent. Flow controlled by headgates. Canal diverts water from 

Snake River for irrigation of 64,000 acres of land under North Side Minidoka project.

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

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.0 43

1.5 79

2.0 125

3.0 241

4.0

6.0

8.0

10.0

394

78O

1,240

1,760

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

64O

656

636

634

630

624 

*628

628

622

626

628

628

63O

628

626

626

622 

620

622

2O7

O

er

o

0 

O

0

O

0

0

0

0

12,141

392

24,080

Nov.

0

O

0

Dec.

O

O

0

Jan.

0

O

O

Feb.

0

0

O

Mar.

0

O

O

Apr.

0

T5

0

O

O

O

0

0

57

176

269

374

480

*590

626

771

*1,020 

1,100

1,180

1,320

1,390

1,410

1,440 

1,430 

1,580

1,330

1,26O

1,220

981

766

20,570

686

4O,800

May

698

700

696

692

692

692 

688 755"

805

805

900

894

842

*894

1,010

1,110

1,270 

1,380

1,400

1,450

1,560

1,600

1,600 

1,610 

1,610

1,610

1,61O

1.6OO

1,61O

*1,60Q

1,610

35,996

1,160

71,400

June

1,540

1,500

1,500

1,500

1,430

1,390 

*1,390

1,390

1,390

1.580

1,380

*1,380

1,38O

1,380

1,380

1,380

1,380 

1,380

1,580

*1,58O

1,380

1,390

1,390 

1.39O 

1,590

1,400

1,390

1,45O

*1,560

1,620

42,570

1,419

84,440

July

1,650

1,650

1,640

1,650

1,640

1,670 

1,690

1,690

1,690

1,7OO

1,7OO

1,700

1,700

1,690

1,690

1,66O

1,640 

1,670

1,690

1,690

1,660

1,65O

1,650 

1,65O 

*1,650

1,590

1,570

1,540

1,450

1.410

1,410

50,65O

1,654

100,500

Aug.

1,580

1,570

1,550

1,510

1,510

1,210 

1,100

*1,100

1,100

1,170

1,280

1,570

1,440

1,520

1,570

*1,570

1,580 

1,580

1,580

1,570

*1,450

1,430

1,290 

1,09O 

1,O1O

1,O10

1,010

1,OOO

1,000

999

39,729

1,282

78,800

Sept.

1,OOO

1,060

1.1OO

1,15O

1,240

1, 280 

1,280

1,240

1,190

1,190

1,190

1,150

1,020

970

970

967

965 

*965

965

965

965

862

812 STB" 

816

816

820

818

818

814

50,192

1,OO6

59,880

Calendar year 195O: Max 1,690 Min 0 Mean 601 Ac-ft 435,400

Water year 1950-51: Max 1,700 Min 0 Mean 635 Ac-ft 459, 90O

* Discharge measurement made on this day.
DIVERSIONS FROM LAKE WALCOTT 

South Side Minidoka Canal near Minidoka, Idaho

57

Location. Lat 42°40', long. 113°29', in sec. 12, T. 9 S., R. 25 E., on right bank 900 ft 

downstream from headgates at Minidoka Dam and 6 miles south of Minidoka.

Records available. April 1909 to September 1951.

Gage. Water stage recorder. Datum of gage is 4,184 ft above mean sea level (Bureau of 

Reclamation benchmark). Prior to 1910, at site 600 ft upstream at same datum.

Extremes. Maximum discharge during year, 1,370 cfs May 25; maximum gage height, 6.04 ft 

Aug. 20; no flow during winter.

1909-51: Maximum discharge, 1,400 cfs June 10, 12, 14, 1948, and July 3, 25, 1950; 

no flow during winters.

Remarks.--Records excellent. Plow controlled by headgates. Canal diverts water from 

Snake River for irrigation of 54,000 acres under South Side Minidoka project.

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

Discharge, In cubic feet per second, water year October 1950 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

34

25

26

27

28

29 

30

31

Total

Mean

Ac- ft

Oct.

8H3

597

461

480

499

478

*432

406 

408

427

444

461

497

514

512

763

917

5ST 

490

164

0"0

0

0

0

0

0

0

0 

0

0

10,410

336

20,650

Nov.

0

0

0

Deo.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

0

0

0

0

0 

96

206

267

267

280

*399

480

552

*635

737 

812

856

871

874

877

874

797

715

729

729

613 

415

-

13,081

436

25,950

May

323

308

304

355

306

306

306

306 

336

432

532

532

509

504

504

524

648

701 

774

898

1,120

1,280

,350

,360

,360

,350

,340

,340

,330 

* ,310

,300

23,799

768

47,200

June

1,300

1,290

,250

,220

,210

,190

,170

,170 

,170

,170

,190

* ,210

,210

,190

,090

,040

,030

,020 

,070

,110

,100

,100

,110

,110

,150

* ,210

,250

,290

,310 

,300

-

35,230

1,174

69,880

July

,290

,290

,310

,290

-.270

,250

,260

,280 

,290

,320

 ,340

* ,340

,340

,340

,340

,320

,320

,330 

* ,340

,550

,530

,300

,300

,280

,270

,290

,290

* ,250

,230 

1,220

1,170

40,140

1,295

79,620

Aug.

1,180

1,190

1,140

1,010

859

751

651

*608 

616

732

859

1,070

1,230

,310

* ,510

,310

,310

,310 

,310

,310

,300

,250

1,110

976

823

774

841

*895

895 

889

908

31,727

1,023

62,930

Sept.

957

963

963

,030

,120

,120

,130

,140 

,140

,110

,100

,100

,010

914

826

740

715

*709 

712

729

701

670

643

525" 618

632

635

637

746 

809

-

25,948

865

51,470

Calendar year 1950: Max 1,390 Mln 0 Mean 512 Ac-ft 370,700

Water year 1950-51: Max 1,360 Mln 0 Mean 494 Ac-ft 357,700

Discharge measurement made on this day.
58 SNAKE RIVER MAIN STEM

Snake River near Minidoka, Idaho

Location. Lat 42"40', long. 113°30', in sec. 2, T. 9 S., R. 25 E., on right bank 1 mile 

downstream from Minidoka Dam and 6 miles south of Minidoka.

Drainage area.--15,700 sq mi.

Records available. August 1895 to December 1899, May 1901 to September 1951. Prior to 

January 1902, published as "at Montgomery Ferry," as "at Montgomery Ferry, near Minidoka" in 1902, and as "below Minidoka Dam, at Howell's Ferry" in 1911.

Gage. Water-stage recorder. Datum of gage is 4,132.2 ft above mean sea level (riverprofile survey). Prior to Apr. 21, 1910, staff gage at site 6 miles downstream at different datum. Apr. 21, 1910, to Aug. 28, 1911, staff gage at present site and datum.

Average discharge. 25 years (1926-51), 5,572 cfs.

Extremes. Maximum discharge during year, 21,300 cfs May 15 (gage height, 11.23 ft); minimum, 2,290 cfs Oct. 30 (gage height, 4.70 ft).

1895-99, 1901-51: Maximum discharge, 47,500 cfs May 29. 30, 1897 (gage height, 12.6 

ft, former site and datum); minimum, 59 cfs Nov. 18, 1936 (gage height, 1.56 ft).

Remarks. Records good. Flow regulated by American Falls Reservoir (see p.' 51 ), Lake 

Walcott (see p. 55 ), and other reservoirs having a combined usable capacity of about 

3,300,000 acre-ft; many diversions above station for irrigation.

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

Rating table, water year 1950-51, except periods of ice effect 

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

(Shifting-control method used July 17 to Sept. 20)

5.0 

6.0 

7.0 

8.0

2,680

4,740

7,240

10,300

9.0

10.0

11.1

13,500

16,900

21,000

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

5,420 

4,700

3,790

3,760

3,810

3,910

*3,740

3,700

4,060

3,870

3,580

3,510

3,680

3,680

3,700

3,680

3,700

3,700

3,660

3,640

3,640

3,640

3,620

3,580

3,580

3,580

3,660

3,510

3,580

5,470

3,640

116,790

3,767

231,600

Nov.

1

3,560 

3,620

3,620

3,580

3,640

3,640

3,620

3,660

3,600

3,560

3,560

3,580

3,530

3,580

3,560

3,870

*4,080

4,120

4,120

4,670

5,440

5,260

5,030

5.800

*5, 730

4,120

3,530

5,450

3,470

3,620

-

120,220

4,007

258,500

Dec.

4,280 

4,610

4,560

4,280

4,250

4,560

4,340

4,520

4,850

4,520

4.060

4,410

4,450

4,920

4,810

5,260

4,960

4,480

4,650

5,080

5,490

5,520

5.750

5,540

4,850

4,850

4,870

4,920

5,080

5,570

5,140

149,150

4,811

295,800

Jan.

4,720 

4,920

5,210

5,520

b5,680

*5,710

b4.600

b5,200

b6, 700

b7,700

b8,600

b8, 800

8,600

8,420

8,660

8,570

8,840

8,780

8,660

8,480

8,450

9,140

10,400

10,800

10,800

10,800

blO,400

b9,500

b6,000

blO,500

bll.100

250,260

8,075

496,400

Feb.

bl 1,100 

bll,000

bl 1,100

11,100

12.400

11,400

11,600

12,000

11,500

11,000

10,900

11,200

10,900

10,700

10,800

10,700

*10,600

10,600

blO,700

blO,800

9,760

9,850

9,760

10,200

10,400

9,640

8.960

10,000

_

500,650

10,740

596,500

Mar.

blO, 100 

blO.OOO

blO.OOO

b 10, 000

blO.100

blO,100

blO,200

blO,200

10,300

blO,300

b 10, 400

10,500

blO,500

10,600

10,400

bgjjSOO

blO,400

blO,500

blO,400

blO,400

blO,400

10,200

blO,400

*10,100

b9,850

blO.OOO

b 10, 200

b 10, 500

blO,200

b9,900

blO.OOO

316,550

10,210

627,900

Apr.

10,200 

10,800

10,500

10,600

10,100

10,500

10,200

10,200

10.900

10,900

10,200

8,450

7,580

*7,070

6,600

6,250

*5,590

5,490

5,520

5.550

5,560

5,750

6,250

6,650

6,990

6,960

7,020

6,880

6,790

10,600

-

241,970

8,066

479,900

May

15,900

15,100

15,100

14,600

13,900

14,000

13,400

11,400

11,300

11,100

11,600

15,400

16,800

18, 700

20, 700

19,700

17,600

*16,400

16,100

15,800

16,900

18,700

18,000

17,800

18,200

18,400

18,400

18,500

18,800

*18,400

17,500

502,200

16,200

996,100

June

16.200 

16,100

16,000

15,500

14,200

15,400

*12,600

10,600

9,550

9,240

9,110

*8.750

8,750

8,780

8,750

8,750

8,780

8,810

8,870

*8,780

9,020

12,700

15,700

10,900

8,870

11,500

14,500

15,500

*11,100

10,400

-

556,890

11,230

668,200

July

10.200 

9,800

9,390

9,550

9,300

9.080

9,580

9,890

9,640

9,670

9,610

*9,580

9,270

9,350

9,590

9,610

9,580

9,450

*9,580

9,700

9,750

9,640

9,640

9,640

9,640

9,480

9,360

*9,550

9,420

9,560

9,300

295,740

9,540

586,600

Aug.

9.500 

9,180

9,050

8,950

8,840

8,930

8,870

*8,600

8,540

8,450

8,480

8,810

8,810

8,950

8,990

*8,930

8,950

8,900

8,990

9,020

8,960

9,020

9,050

8,840

8,420

8,560

8,450

*8,420

8,500

8,500

8.240

271,840

8,769

559,200

Sept.

8,300 

8,480

8,540

8.570

8,480

8,350

8,120

8,550

8,090

8,090

8,450

8,000

7,760

7,360

7,100

7,100

6,950

*6,760

6,740

6,820

6,360

6,000

5,800

5,850

5,920

5,950

5,710

5,540

5,540

5.490

-

214, 490

7,150

425,400

Calendar year 1950: Max 26,700 Mln 2,800 Mean 7,989 Ac-ft 5,784,000

Water year 1950-51: Max 20,700 Mln 3,450 Mean 8,539 Ac-ft 6,182,000

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
GOOSE CREEK BASIN 

Goose Creek above Trapper Creek, near Oakley, Idaho

59

Location. Lat 42°07', long. 113°56', in sec. 13, T. 15 S., R. 21 E., on right bank 5 miles 

upstream from Trapper Creek and 10 miles south of Oakley.

Drainage area.--600 sq mi, approximately.

Records available.--April 1911 to September 1916, March 1919 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,770 ft (by barometer). Prior to Aug. 

29, 1912, at site 200 ft downstream at different datum.

Average discharge.--28 years (1911-14, 1926-51), 41.9 cfs.

Extremes.--Maximum discharge during year, 858 cfs Feb. 7 or 8 (gage height, 5.78 ft, from 

high-water mark); minimum, 5.3 cfs Nov. 15 (gage height, 1.38 ft), caused by temporary 

storage behind ice jam upstream.

1911-16, 1919-51: Maximum discharge, 1,670 cfs Jan. 23 or Feb. 24, 1943 (gage height, 

7.6 ft, from floodmark), from rating curve extended above 600 cfs 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, 

which are poor. Diversions above station for irrigation. Flow of artesian well, completed in 1935, enters below. Practically entire flow passing station is stored in 

Oakley Reservoir.

Rating table, water year 1950-51, except periods of lee effect (gage 

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

1.4 

1.6 

1.8 

2.1 

2.4 

Z.I

5.7

12

20

38

66

105

3.0 

3.5 

4.0 

4.5 

5.2

149

237

336

453

660

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

13 

14

15

14

14

14

14

14

15

15

15

15

15

16

16

18

17

17

18

18

17

17

17

18

.19

19

19

19

19

19

19

509

16.4

1,010

Nov.

20 

20

21

21

22

24

22

21

*21

b!9

b!8

b!9

20

23

21

22

25

25

25

27

31

32

31

29

29

28

27

26

25

27

-

721

24.0

1,430

Dec.

28 

26

24

24

39

50

41

41

*42

40

38

37

36

35

34

32

33

32

31

31

30

30

25

25

b23

b23

b22

b23

b24

b24

b22

965

31.1

1,910

Jan.

b!9 

19

23

b25

b24

b20

b!8

b!5

b!8

b22

b25

b25

b25

b26

27

28

28

28

26

b20

b24

25

34

36

36

35

35

b30

b22

b!5

bjU

767

24.7

1,520

Feb.

*b!4 

b20

30

40

100

250

400

650

450

350

375

200

140

110

90

95

80

80

65

55

70

60

55

50

45

50

50

45

-

_

-

4,019

144

7,970

Mar.

*b45 

b45

47

47

47

47

47

47

b47

b45

45

45

b55

b65

blSO

b225

131

62

62

130

239

T2"2 252

82

94

105

95

70

65

70

67

2,695

86.9

5,350

Apr.

63 

67

77

87

98

112

122

134

149

155

162

167

163

167

180

195

205

*209

214

216

214

216

214

209

200

193

184

180

200

226

-

4,978

166

9,870

May

222 

216

*195

175

167

174

205

243

271

277

273

275

287

297

267

241

222

211

213

222

229

*222

211

202

195

187

180

165

159

151

142

6,696

216

13,280

June

121

132

124

112

108

99

94

90

81

81

77

71

74

71

*58

47

38

36

28

26

26

28

29

29

29

31

29

26

26

22

-

1,859

62.0

3,690

July

20 

19

18

17

16

16

15

13

11

11

10

9.8

9.4

8.4

7.9

7.6

7.6

7.6

*9.1

11

11

13

15

16

14

14

13

13

14

17

12

413.4

13.3

820

Aug.

22 

20

22

28

40

36

27

23

21

19

18

16

15

14

14

13

13

11

TI

11

11

12

12

13

13

13

13

*13

14

16

15

539

17.4

1,070

Sept.

15 

15

14

13

11

9.8

9.4

8.4

7.9

7.6

6,5

6.8

7.9

7.9

7.6

7.3

7.6

7.6

7.9

6.8

6.8

7

8

8

8

8

8

9

10

11

-

268.8

8.96

533

Calendar year 1950: Max 226 Mln 4.3 Mean 43.8 Ac-ft 31,680

Water year 1950-51: Max 650 Mln 6.5 Mean 66.9 Ac-ft 48,450

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note.--No gage-height record Feb. 3-28, Mar. 3-8, 11, 12, Sept. 22-30; discharge estimated on basis 

of weather records, records for nearby streams, and storage records for Oakley Reservoir.
60 GOOSE CREEK BASIN

Trapper Creek near Oakley, Idaho

Location. Lat 42<>10', long. 113°S9', In sec. 34, T. 14 S., R. 21 E., on left bank 4 miles 

upstream from Oakley Dam and 7 miles southwest of Oakley.

Drainage area. 32 sq ml, approximately.

Records available. May 1911 to September 1916, March 1919 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,820 ft (by barometer). Prior to Sept. 1, 1912, water-stage recorder at approximately present site at 

different datum. Sept. 1-30, 1912, staff gage at site three-quarters of a mile downstream at different datum. Apr. 8, 1913, to Sept. 30, 1916, and Mar. 28, 1919, to Aug. 

15, 1931, water-stage recorder at site 1 mile upstream from present site at different 

datum.

Average discharge.--27 years (1911-12, 1913-14, 1926-51), 14.0 cfs.

Extremes. Maximum discharge during year, 52 cfs May 11; maximum gage height, 5.36 ft Feb. 

7, May 11; minimum discharge, 3.1 cfs Jan. 6 (gage height, 4.62 ft), Ice Jam upstream. 

1911-16, 1919-51: Maximum discharge recorded, 270 cfs Aug. 17, 1941 (gage height, 

6.99 ft), from rating curve extended above 100 cfs on basis of velocity-area studies 

and peak flow over weir (a higher flow may have occurred Aug. 15, 1931); minimum recorded, 2.3 cfs 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 occasionally by Oakley Canal Co. 

Revisions (water years).--W 1063: 1941, 1943.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

4.7

4.8

4.9

4.5 

8.0

13

5.1 

5.4

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

12

11

12

10

10

11

11

10

10

10

10

10

10

1011

11

11

10

10

10

10

10

10

10

10

10

10

10

10

10

11

319

10.3

633

Nov.

11

IS. 11

11

10

10

10

11

*10

8^5

10

10

10

10

10

10

10

11

12

12

12

12

11

11

12

12

12

12

12

12

-

327.5

10.9

650

Dec.

12

12

14

15

13

12

14

14

*12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

382

12.3

758

Jan.

12

12

12

12

12

7.3

9.0

12

13

12

12

12

12

12

12

12

12

12

12

9.0

12

13

12

ii

14

13

13

11

6.2

7.6

10

456.1

11.5

706

Feb.

*10

11

14

17

29

20

28

23

20

20

21

19

17

17

16

15

15

15

15

14

14

14

15

14

14

14

14

14

-

-

-

469

16.8

930

Mar.

*12

14

13

14

13

13

13

13

13

12

12

12

13

15

16

16

14

14

14

18

21

18

16

17

18

18

18

17

17

18

17

469

15.1

930

Apr.

Ts~ 17

19

21

23

25

26

27

28

29

28

29

30

32

36

36

37

*40

40

43

41

40

40

40

40

40

40

43

46

44

-

998

33.3

1,980

May

41

40

*37

37

45

47

48

48

49

49

49

47

45

43

43

46

47

49

50

*50

49

49

50

48

46

45

45

41

40

1,393

44.9

2,760

June

38

37

35

32

32

31

31

30

29

28

27

28

28

26

*25

23

22

22

22

21

20

20

20

19

19

19

18

11

17

17

-

753

25.1

1,490

July

17

16

15

15

15

15

14

14

14

14

14

14

ii

12

12

12

12

12

*12

12

13

12

12

12

12

12

12

14

13

12

12

409

13.2

811

Aug.

12

12

12

14

12

12

12

12

12

11

11

1°

10

10

10

10

10

10

10

12

12

12

12

12

12

10

10

*12

12

12

12

352

11.4

698

Sept.

n

To

10

10

10 ;

10

10

9.5

9.5

9.5

9.5

10

10

10

10

10

10

10

10

10

1011

10

10

10

10

10

10i:11-

302.0

10.1

599

Calendar year 1950: Max 47 Min 7.0 Mean 16.2 Ac-ft 11,740

Water year 1950-51: Max 50 Min 6.2 Mean 17.9 Ac-ft 12,940

Discharge measurement made on this day.
GOOSE CREEK BASIN 61

Oakley Reservoir near Oakley, Idaho

Location.--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.

Drainage are_a.--670 sq mi, approximately.

Records available.--October 1912 to September 1951.

Gage.--Staff gage. Altitude of gage is 4,630 ft (by barometer).

Extremes. Maximum contents observed during year, 41,500 acre-ft May 29, June 1 (gage 

height, 102.1 ft); minimum not determined.

1912-51: Maximum contents observed, 74,600 acre-ft June 15, 1921 (gage height, 

136.2 ft); reservoir drained at close of seasons in 1915, 1919, 1920, 1926, 1933, 1949, 

1950.

Remarks.--Reservoir is formed by earth dam constructed in 1911-13; storage began in 1911. 

Capacity, 74,350 acre-ft between gage heights 0.0 ft (bottom of diversion tunnel) and 

136.0 ft (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 1950 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.

-

-

-

-

528

-

1,060

-

-

1,100

-

-

-

-

-

-

1,430

-

-

1,690

-

-

-

-

1,920

Nov.

-

-

-

-

_

-

2,550

-

-

2,880

_

-

-

-

-

-

-

3,580

-

-

-

-

-

-

a4,110

-

Dec.

4,190

-

-

-

_

5,040

5,160

-

-

5,620

_

5,740

-

-

-

-

-

-

-

6,380

-

-

-

-

-

a6,810

Jan.

6,880

-

-

-

_

7,360

-

-

7,740

-

-

-

-

-

-

-

-

8,480

-

_

-

-

-

-

9,120

Feb.

-

-

-

9,720

_

-

15,100

:-

17,000

.

-

-

-

-

17,800

-

-

-

-

-

-

a!8,400

-

-

-

Mar.

18,500

_

-

-

19,200

-

19 , 500

:-

19,900

_

-

-

-

-

-

-

22,000

-

-

-

-

-

-

-

a24,300

Apr.

24,600

-

-

25,900

_

-

27,200

-

-

29,000

-

29,800

-

-

-

31,500

-

-

-

_

-

-

32,800

a33,000

May

33,100

33,900

34,100

34,500

_

-

37,200

-

38,100

.

-

-

-

40,000

_

40,600

-

-

-

_

41,400

-

41 , 500

-

a41,500

June

41,500

41 , 300

-

-

_

-

40,600

:-

39,900

_

-

39,400

-

-

-

-

-

-

38,000

-

-

-

-

a36,400

-

July

36,100

-

-

-

_

34, 700

:-

31,100

-

-

-

28,600

-

-

27,200

-

-

-

-

-

-

24,400

-

a24,000

Aug.

-

-

-

22,800

_

-

22,200

-

21,800

-

-

-

21,200

-

-

-

-

-

-

-

-

20,100

-

-

al9,400

Sept.

19,200

-

18,600

_

-

17,000

-

-

_

-

-

-

-

15,300

-

-

-

-

-

-

15,300

-

a!4,800

"

a No gage-height record; contents interpolated.

Monthly elevation and contents, water year October 1950 to September 1951

Date

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

Calendar year 1950. . . .

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

Water year 1950-51. . . .

Gage height 

(feet)

0

22 9

_

-

-

_

_

_

_

_

-

-

Contents 

(acre-feet)

0

a6,810

-

a!4,800

-

Change in contents 

during month 

(acre-feet)

_

+2,700

-2,530

-4,600

, 414,800

a No gage-height record; contents interpolated.
62 DIVERSIONS FROM SNAKE RIVER BETWEEN GOOSE CREEK AND SNAKE RIVER AT MILNER

P. A. lateral near Milner, Idaho

Location.--Lat 42°32', long. 114°01', in sec. 22, T. 10 S., R. 21 E., on left bank 600 ft 

downstream from pumping station and 2-J miles northeast of Milner.

Records available.--April 1919 to September 1951. Records collected by North Side Canal 

Co. 1916-18 (yearly summaries only published in W.S.P. 883).

Gage.--Staff gage read twice daily. Altitude of gage is 4,196 ft (river survey).

Extremes. Maximum discharge during year, 73 cfs on several days during June and July; no 

flow Oct. 1 to Apr. 25, Sept. 26-30.

1916-18, 1919-51: Maximum discharge, 73 cfs on many days during 1949, 1950, and 

1951; no flow for many days.

Remarks.--Records excellent. Plow regulated by pumping plant which lifts water from Snake 

River for irrigation on North Side Twin Palls tract.

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

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.0 

1.3 

1.6

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

o

0

0

14

16

*32

32

4

-

98

3.3

194

May

0

2

31

31

47

47

47

47

60

60

60

62

62

62

62

62

62

62

64

64

64

64

64

64

64

64

64

64

64

64

64

1,698

54.8

3,370

June

*64

64

62

62

62

62

62

62

62

62

*62

62

62

62

62

62

62

62

62

62

62

62

*62

62

73_

73

73

73

72

73

-

1,929

64.3

3,830

July

73

72

72

61

72

72

72

72

72

72

72

72

72

73

72

72

72

72

73

72

73

73

72

72

71

72

73

73

11

58

55

2,165

69.8

4,290

Aug.

68

68

70

70

71

72

*70

70

69

69

69

69

70

70

72

72

72

72

72

71

71

70

71

72

62

62

61

62

62

60

60

2,119

68.4

4,200

Sept.

60

61

61

61

61

61

62

62

62

60

60

60

58

48

48

48

48

48

*48

48

48

47

45

45

43

0

0

0

0

0

-

1,353

45.1

2,680

Calendar year 1950: Max 73 Mln 0 Mean 26.2 Ac -ft 18,030

Water year 1950-51: Max 73 Mln o Mean 25.6 Ac-ft 18,560

Discharge measurement made on this day.
DIVERSIONS FROM SNAKE RIVER BETWEEN GOOSE CREEK AND SNAKE RIVER AT MILNER 63 

Milner low-lift canal near Milner, Idaho

Location.--Lat 42°31', long. 114°01 I , in sec. 32, T. 10 S., R. 21 E., at head of canal 

and 1-| miles south of Milner.

Records available.--June 1921 to September 1951. Prior to October 1922 published as 

Murtaugh Canal near Milner.

Gage.--Rated pumps. Prior to May 1, 1945, water-stage recorder at site 600 ft downstream.

Extremes. Maximum discharge during year, 212 cfs Sept. 27 (capacity test measurement); no 

flow for many days.

1921-51: Maximum discharge, that of Sept. 27, 1951; no flow for many days.

Remarks.--Records excellent. Flow controlled by pumping plant, which lifts water from 

Snake River above Milner Dam for irrigation of 9,130 acres of land in Milner low-lift 

irrigation district. Pumps rated by current-meter measurements.

Cooperation. Records of pump discharges furnished by Milner low-lift irrigation district.

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

28

37

*54

54

80

80

80

80

90

127

44

68

150

150

19

"

1,141

38.0

2,260

May

0

80

127

127

*127

129

140

150

150

150

150

150

150

150

150

150

150

150

150

150

150

150

150

162

171

171

171

171

171

171

*171

4,489

145

8,900

June

171

171

171

171

171

171

171

171

171

171

171

172

172

172

172

172

172

72

72

72

* 72

72

172

172

172

172

172

172

172

172

-

5,149

172

10,210

July

172

172

172

172

172

180

198

198

198

*198

198

198

198

199

199

199

199

199

200

200

200

200

200

201

*201

201

201

201

201

201

201

6,029

194

11,960

Aug.

201

201

201

201

155

0

0

88

75

109

150

150

*171

171

171

171

191

201

201

201

201

201

201

201

201

201

201

188

179

*179

179

5,141

166

10,200

Sept.

179

179

179

179

179

179

175

159

159

159

159

159

159

159

159

159

159

159

*156

140

140

138

130

130

130

122

124

120

120

111

-

4,559

152

9,040

Calendar year 1950: Max 200 Min 0 Mean 73.2 Ac-ft 52,970

Water year 1950-51: Max 201 Min 0 Mean 72.6 Ac-ft 52,570

Discharge measurement made on this day
64 DIVERSIONS PROM SHAKE RIVER BETWEEN GOOSE CREEK AND SNAKE RIVER AT MILNER

Gooding Canal at Milner, Idaho

Location. --Headgates of canal, lat 42°31' 

at Milner dam.

long. 114°01', in sec. 28, T. 10 S., R. 21 E.,

Records available. May 1930 to September 1951.

Gage . --Water-stage recorder on Milner-Gooding Canal at site 3 miles downstream from headgates. Staff gage on A lateral lj miles below headgates and differential recorder on 

control gates of diversion 3 miles downstream from headgates.

Extremes. --Maximum dally discharge during year, 2,660 cfs July 21-23, 25, no flow for many

days . '

1930-51: Maximum dally discharge, 2,680 cfs July 26, 28, 1949; no flow for .Jiany days.

Remarks. --Record 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 Falls Canal and P. A. 

lateral. Discharge of canal Is computed by combining the discharge of Milner-Gooding 

diversion and that of North Side Canal Co. diversions below their division point and 

adding 35 cfs to that sum for loss between headgates and division point.

Cooperation. --Gage-height record furnished by North Side Canal Co. and American Falls 

Reservoir District No. 2.

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

430

990

,170

,350

,530

,700

,780

,810

,910

,930

,950

,940

.950

,890

-

22,330

744

44,290

May

1.820

1,820

1,920

1,980

1,950

1,990

2,060

2,060

2,030

1,990

2,010

2,070

2,070

2,060

2,070

2,070

2,050

2,060

2,060

2,160

2,240

2,270

2,340

2,410

2,400

2,400

2,490

2,510

2,540

2,520

2,540

66,960

2,160

132,800

June

2,560

2,550

2,540

2,550

2,530

2,540

2,560

2,550

2,530

2,550

2,550

2,550

2,550

2,560

2,560

2,540

2,540

2,550

2,530

2,530

2.520

2,540

2,540

2,530

2,530

2,540

2,560

2,540

2,550

2,530

-

76,300

2,543

fL51,300

July

2,540

2,540

2,550

2,500

2,510

2,510

2,550

2,560

2,540

2,610

2,610

2,610

2,600

2,580

2,570

2,590

2,630

2,630

2,620

2,620'

2.660

2,660

2,660

2,650

2,660

2,650

2,650

2,640

2,630

2,630

2,580

80,540

2,598

159,700

Aug.

2,560

2,570

2,560

2,560

2,560

2,560

2,550

2,530

2,540

2,530

2,500

2,480

2,480

2,460

2,470

2,470

2,460

2,470

2,470

2,480

2,480

2,500

2,480

2,460

2,470

2,420

2,400

2,400

2,400

2,400

2,580

77,050

2,485

152,800

Sept.

2,390

2,390

2,400

2,420

2,420

2,410

2,380

2,370

2,400

2,400

2,340

2,410

2,400

2,390

2,330

2,300

2,300

2,290

2,290

2,240

2,250

2,250

2,250

2,220

2,190

2,200

2,210

2,190

1,200

0

-

66,230

2,208

131,400

mi ~r o (*)| '-J o0 

0

Distr

0 

0

0 

0

0 

0

22,750 

21,540

73,090 

59,720

93,440

57,900

96,850 

62,900

90,880 

61,940

72,730 

58,630

Calendar year 1950: Max 2,620 Mln 0 Mean 1,024 Ac-ft 741,400 

Water year 1950-51: Max 2,660 Mln 0 Mean 1,067 Ac-ft 772,300

To Milner-Gooding project, total for water year 449,700 aore-ft.

To North Side Canal Co. project, total for water year 322,600 acre-ft.
DIVERSIONS FROM SNAKE RIVER BETWEEN GOOSE CREEK AND SNAKE RIVER AT MILNER 65

North Side Twin Falls Canal at Milner, Idaho

Location.--Lat 42°32', long. 114°01', in sec. 20, T. 10 S., R. 21 E., on right bank half 

a mile north of Milner and three-quarters of a mile downstream from headgates at Milner 

Dam.

Records available.--May 1909 to September 1951.

Gage. Water-stage recorder. Datum of gage is 4,123.4 ft above mean sea level, datum of 

1929. Prior to Apr. 1, 1916, staff gages at two sites within half a mile of present 

site at slightly different datum.

Extremes.--Maximum discharge, 2,830 cfs July 10; no flow for several days.

1909-51: Maximum daily discharge, 3,200 cfs July 5-7, 29-31, 1921, May 15, 1928, 

June 2, July 23, 1929; no flow at times when headgates were closed.

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

controlled by headgates. 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 cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

1,590

1,440

,340

,210

,060

,130

,150

,110

,070

,150

*1,050

988

988

309

0

0

0

0

0

0

150

109

653

1,020

1,000

957

826

785

818

770

740

23,413

755

46 , 440

Nov.

729 

655

729

*722

714

711

703

671

685

674

700

703

718

642

625

625

*622

608

581

565

581

574

565

555

58T

578

558

574

574

574

-

19,126

638

37,940

Dec.

584 

588 58~4

561

561

561

565

561

*568

578

571

559

555

561

571

574

578

542

542

552

561

561

542

542

526

523

529

529

532

526

529

17,216

555

34,150

Jan.

517 

529

539

558

545

*555

539

501

539

b530

b530

b530

b530

542

539

536

532

b525

b525

b525

b525

b525

b504

483

483

455

*440

443

b400

b400

b400

15,724

507

31,190

Feb.

b400 

b450

495 492"

489

486

434

437

449

428

431

407

401

392

387

384

384

378

384

392

390

367

369

.381

387

384

355

3S4

_

-

11,497

411

22,800

Mar.

387 

390

381

392

392

404

39?

395

381

369

375

372

375

378

372

347

381

381

372

375

378

358

378

378

369

367

375

390

390

384

*387

11,765

380

23,340

Apr.

390 

407

395

378

464

611

685

800

946

1,210

,080

,030

,120

,190

,250

,220

,180

* ,190

,180

,180

,190

,250

,300

,310

,300

,290

,430

,490

,490

,510

-

31,466

1,049

62,41O

May

1,490 

1,360

1,280

1,280

 1,480

1,580

1,440

1,330

1,550

1,730

1,790

1,820

1,800

1,800

1,790

1,810

1,950

2,050

*2,050

2,030

2,030

2,040

2,180

2,260

2,290

2,330

2,350

2,460

2,430

2,430

2,460

58,670

1,893

116,400

June

*2,470 

2,450

2,450

2,450

2,450

2,450

2,440

*2,440

2,440

2,460

2,550

2,580

*2,600

2,620

2,580

2,580

2,600

2,580

2,570

2,560

2,540

*2,590

2,570

2,550

2,550

2,570

2,570

2,560

2,600

2,640

-

76,060

2,535

150,900

July

2,640 

2,640

*2,620

2,720

2,720

2,740

2,710

2,720

2,710

*2,800

2,760

2,760

2,730

2,680

2,680

2,720

*2,740

2,740

2,720

2,710

2,750

2,740

*2,720

2,730

2,740

2,720

*2,740

2,730

2,730

2,720

2,720

84,300

2,719

167,200

Aug.

2,720 

2,720

2,620

2,600

2,590

*2,590

2,590

2,580

2,620

2,540

2,510

2,530

*2,530

2,540

2,600

2,540

2,540

2,530

2,540

*2,540

2,520

2,540

2,530

2,460

2,440

2,420

2,440

2,370

*2,320

2,310

2,290

78,210

2,523

155,100

Sept.

2,320 

2,320

2,290

2,250

2,260

2,140

2,050

2,060

2,160

2,160

2,090

2,190

2,170

2,110

*2,020

1,960

1,890

1,830

 1,810

1,700

1,640

1,450

1,320

1,330

1,300

1,210

1,160

988

 l.TBO"

1,520

-

54,858

1,829

108,800

Calendar year 1950; Max 2,850 Min 0 Mean 1,349 Ac -ft 976,500

Water year 1950-51: Max 2,800 Mln 0 Mean 1,321 Ac-ft 956,700

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ic
66 DIVERSIONS FROM SNAKE RIVER BETWEEN GOOSE CREEK AND SNAKE RIVER AT MILNER 

South Side Twin Falls Canal at Milner, Idaho

Location. Lat 42°31', long. 114°01', in sec. 29, T. 10 S., R. 21 E., on left bank 50 ft 

upstream from highway bridge and 700 ft downstream from headgates at Milner Dam.

Records available.--May 1909 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 4,121.5 ft above mean sea level, datum 

of 1929. Prior to May 13, 1913, staff gage and May 13, 1913, to Apr. 24, 1914, waterstage recorder, at highway bridge 50 ft downstream at present datum.

Extremes.--Maximum discharge during year, 3,720 cfs July 25 (gage height, 10.56 ft); minimum, 26 cfs Oct. 26-31 (gage height, 0.90 ft).

1909-51: Maximum daily discharge, 4,600 cfs Aug. 12, 1918, including about 1,200 cfs 

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. Flow 

controlled by headgates. Diversion began in March 1905 when 30,000 acres were reported 

as irrigated. By 1912 this had increased to 147,000 acres and during recent years irrigated area has been reported as 202,000 acres.

Cooperation.--Gage-height record furnished by Twin Falls Canal Co.

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

1,610 

1,530

1,500

1,420

1,370

1,390

1,280

1,250

1,170

 1,100

1,O60

980

969

972

965

1,020

1,030

1,050

1,060

1,060

1,050

1,060

1,060

1,060

1,010

767

JL§

26

26

26

307

30,204

974

59,910

Nov.

855

490

407

*551

838

746

394

425

449

534

621

621

624

582

562

559

*559

573

568

548

545

537

54O

537

540

537

537

545

545

548

-

16,917

564

33,560

Dec.

548 

545

551

545

534

534

540

534

*529

532

529

532

532

532

540

543

545

543

543

548

548

537

529

532

529

529

529

529

537

537

524

16,639

537

33,000

Jan.

529 

545

565

559

b561

*b547

b467

b431

b488

b494

b515

b520

b520

524

516

513

518

b505

b479

b436

b479

b497

b513

b516

554

548

537

548

b424

blTT"

b462

15,747

508

31,230

Feb.

b455 

b452

b454

b455

b475

b476

b465

b477

494

508

"491 526

513

491

499

505

497

502

502

491

459

451

494

497

508

508

475

478

_

_

-

13,598

486

26,970

Mar.

483 

486

494

489

480

475

502

510

526

*50"5

489

486

489

508

521

524

521

516

497

467

459

464

457

454

446

472

491

483

205

65

 15

14,029

453

27,830

Apr.

65 

65

65

393

568

587

675

720

749

791

794

787

801

904

990

1,150

1,500

*1,81O

2,010

2,270

2,210

2,140

2,240

2,490

2,740

2,740

2,890

2,910

2,660"

2,400

43,114"

1,437

85,520

May

2,310 

2,620

2,800

2,82O

*2,810

2,850

2,830

2,820

2,800

2,970

3,120

3,030

2,940

2,940

2,990

3,020

3,020

3,090

3,150

3,160

3,160

3,170

3,280

3,500

3,500

3,500

3.510

3,420

3,380

3,370

95; 3 10

3,075

189,000

June

3,440 

3,420

3,450

3,460

3,420

3,400

3,420

*3,330

3,310

3,310

3,350

3,360

*3,350

3,350

3,340

3,340

3,360

3,330

3,290

3,290

3,290

*3,310

g , 270

3, 290

3,300

3,350

3,410

3,460

3,500

3 ,490

100,990

3,366

200,300

July

3,510 

3,520

*3,510

3,520

3,560

3,560

3,58O

3,540

3,490

*3,500

3,520

3,590

3,610

3,650

3,660

3,650

*3,650

3,650

3,660

3,650

3,650

3,670

*3.690

3,690

3,690

3,670

*3,640

3,630

3,600

3,580

3,590

111,680

3,603

221,500

Aug.

3,570 

3,570

3,560

3,580

3,560

*3,570

3,570

3,570

3,560

3,500

3,470

3,480

*3,480

3,530

3,580

3,600

3,600

2,100

1,800

*2,840

3,610

3,580

3,560

3,560

3,580

3,580

3,610

3,570

3,530

*3,480

3,470

106,220

3,426

210,700

Sept.

3,470 

3,470

3.500

3,500

3,460

3,390

3,340

3,310

3,360

3,310

3,310

3,190

3,060

2,930

2,810

2,750

2,670

2,640

*2,630

2,660

2,580

2,470

2,280

2,140

2,110

2,100

2,110

2,090

*2,000

1,930

84,570

2,819

167,700

Calendar year 1950: Max 3,720 Min 24 Mean 1,750 Ac-ft 1,267,000

Water year 1950-51: Max 3,690 Min 26 Mean 1,778 Ac'-ft 1,287,000

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice
SNAKE RIVER MAIN STEM 67

Snake River at Milner, Idaho

Location.--Lat 42°32', long. 114 0 01', in sec. 29, T. 10 S., R. 21 E. , on left bank 200 ft 

downstream from highway bridge at Milner and a quarter of a mile downstream from Milner 

Dam.

Drainage area. 17,180 sq mi, approximately. 

Records available.--May 1909 to September 1951.

.--Water-stage recorder. Datum of gage is 4,062.9 ft above mean sea level, datum of 

929. Prior to May 28, 1919, staff gages at slightly different sites and datums.

Gage

1!

'Average discharge. 25 years (1926-51), 1,990 cfs.

Extremes.--Maximum discharge during year, 14,800 cfs May 15, 16 (gage height, 16.63 ft); 

minimum, 57 cfs Jan. 29 (gage height, 2.46 ft).

1909-51: Maximum discharge, 44,400 cfs June 12, 1909 (gage height, 20.10 ft, site 

and datum then in use); minimum, 2 cfs Mar. 17-28, 1936 (gage height, 1.18 ft).

Remarks. Records good. Flow regulated by American Falls Reservoir (see p.51 ), Lake 

Walcott (see p. 55 ), and other reservoirs having a combined usable capacity of about 

3,300,000 acre-ft. About 1,340,000 acres of land irrigated by diversions from 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 Falls Canal Co. and North Side Canal 

CoT

Rating table, water year 1950-51 (gage height, in feet, and 

discharge, in cubic feet per second)

3.0 

3.5 

4.0 

5.0

68

134

234

373

748

9.0 

10.0

1,400

2,390

3,580

4,530

5,550

12.0

14.0

16.0

18.0

7,910

10,600

13,800

17,600

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

3,600

5.900

3,570

3,120

2,380

1.640

2,170

2,190

1,980

*2 , 200

2,280

2,250

2,250

2,950

3,350

3,390

3,500

3,670

3,780

3,550

3,210

3,060

2,140

1,860

2,170

3,530

2,560

2,160

3,170

3,140

3,230

87,750

2,831

174,000

Nov.

3,340

3,350

1,190

*1,350

3,090

2,920

2,890

2,870

3,020

3,040

3,380

3,520

2,080

2,470

2,410

*2,460

2,960

3,150

3,230

3,260

3,990

4,650

4,560

4,470

4.760

4,670

3,680

2,970

2,690

2,630

-

95,050

3,168

188,500

Dec.

2.680

3,280

3,750

3,680

3,710

3,740

3,740

3,750

*3,830

3,920

3,830

3,700

3,750

3,840

4,040

4,210

4,500

4,410

4,180

4,110

4,410

4,740

4,820

4.960

4,790

4,510

4,330

4,290

4,120

4,190

4,320

126,130

4,069

250,200

Jan.

4,090

3,720

4,390

4,670

4,620

4,660

4,440

5.700

4,420

6,410

7,270

7,910

7,920

8,010

8,010

7,990

7,680

7,880

7,730

6,790

7,530

7,830

9,130

9,890

9,960

9,770

*9,560

9,400

5,080

9,890

10.500

220,650

7,118

437,700

Feb.

10,500

10,200

10,100

10,500

11,500

11.800

11,100

11,000

11,000

10,900

10,500

9,960

10,400

10,200

10,000

9,840

9,860

9,440

9,800

10,100

9,840

8,960

9,000

9,090

9,570

9,550

8 . 550

8,590

-

-

-

281,250

10,040

557,900

Mar.

9,580

9,470

9,070

9,580

9,520

9,890

9,580

9,790

9,540

*9,590

9,830

9,790

9,730

9,960

9,490

8.790

9,980

9,970

9,700

9,760

9., 790

9,020

9,760

9,720

9,410

9,140

9,440

10.000

9,940

9,720

9,860

298,210

9,620

591,500

Apr.

9.S70

8,640

10.100

9,850

9,510

8,910

8,740

8,660

7,750

8,870

7,960

6,300

5,060

4,500

4,510

4,280

2,220

1,710

*1,550

541

232

239

442

1,210

1,550

1,250

984

753

755

3,850

-

140,516

4,677

278,500

May

8,450

9,470

10,100

8,850

6,070

*7,260

7,330

4,980

5,600

4,510

4.050

6,450

9,760

11,300

14.200

14,200

11,100

8,950

8,900

8,260

8,790

11,600

10,400

9,110

9,540

10,200

9,980

9,420

10,700

9,790

9,290

280,350

9,044

556,100

June

7,940

8.070

7,780

7,770

6,260

5,260

4,800

*5,540

1,460

1,080

824

610

*296

431

497

505

259

299

550

501

*222

2,870

5,640

3,120

280

1,300

5,180

5,140

2,520

1,470

-

86,034

2,868

170,600

July

1,150

715

*626

254

405

116

124

972

353

*504

519

472

313

285

507

310

*515

510

510

507

351

683

646

519

*4 6

591

386

402

658

771

545

14,481

467

28,720

Aug.

595

572

638

638

634

*824

942

451

415

319

322

322

522

319

507

319

550

2,070

2.090

1,110

425

501

819

662

458

405

550

550

*550

330

350

18,419

594

36,550

Sept.

525

322

522

322

325

328

534

438

336

392

325

610

679

497

335

508

599

515

*554

479

722

373

465

814

704

717

1,040

1,050

1,740

5.470

"

19,818

661

59,310

Calendar year 1950: Max 18,400 Mln 26 Mean 4,074 Ac-ft 2,950,000

Water year 1950-51: Max 14,200 Mln 116 Mean 4,571 Ac-ft 3,309,000

Discharge measurement made on this day.
68 DEVILS WASHBOWL SPRING BASIN

Devils Washbowl Spring near Kimberly, Idaho

Location Lat 42°35', long. 114°21', in NE£ sec. 4, T. 10 S., R. 18 E., 400 ft downstream 

from Devils Washbowl Spring, half a mile upstream from mouth which is half a mile upstream from Twin Falls of Snake River, and 3j miles north of Kimberly, Idaho.

Records available.--April 1950 to September 1951.

Gage. water-stage recorder. Altitude of gage is 3,540 ft (from river-profile map).

Extremes.--1950-51: Maximum daily discharge, 27 cfs Sept. 19, 22-25, 1951; minimum daily, 

TS7l5~cfs May 13-15, 1950.

Remarks. Records good. No diversion or regulation above station. Plow at station is 

from principal outlet only. On Mar. 20, 1951. a discharge measurement of total spring 

flow of 25.6 cfs (adjusted for surface inflow) was made.

Rating table, water year 1950-51 ( ige height, in feet, 

and discharge, in cubic feet per second)

1.7

1.8 

2.0

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

24 

24

24

*24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

23,5

24

24.5

24.5

24.5

24.5

24.5

746.0

24.1

1,480

Nov.

24^5 

24.5

24.5

24

24

24

24

24

23.5

23.5

23.5

24

24.5

24.5

*24

23.5

23.5

23.5

23

23

23

22.5

22.5

22.5

22.5

22.5

22

22

22

22

-

701.0

23.4

1,390

Dec.

22.5 

22.5

23

22.5

22.5

22.5

22.5

22.5

22

22

22

22

*22

22

22

22

22

22

22

22

2L.5

21.5

21.5

21.5

21.5

21.5

21.5

21.5

21.5

22

22.5

682.5

22.0

1,350

Jan.

22 

22.5

2Z

22

21.5

21.5

21

21

21

21

21.5

21.5

21.5

22.5

22.5

22.5

22.5

23.

22.5

22

22.5

22.5

22

22

22

21.5

21

21

21

21

21

675.0

21.8

1,340

Feb.

21 

21

21

21

21

21

21

21

21

21

21

21

*21

21

21

21

21

21

21

21.5

22

22

22.5

22.5

22.5

22.5

22

22

-

-

-

598.5

21.4

1,190

Mar.

22 

22

22

22

22

22

22

22

22

21.5

*21.5

21

21

21

21

20.5

20.5

20.5

20.5

20.5

20.5

20.5

20.5

20.5

20.5

20.5

20.5

20.5

21

21

21

654.5

21.1

1,300

Apr.

ft

21

21

21

21-

21

21

21

21

21

21

21

21

21

21

21

21

21

*21

21.5

21

21

21

21

21

21

21

21

21

-

630.5

21.0

1,250

May

20.5 

2075

20.5

20.5

20.5

20.5

20.5

20.5

20

20

20

20

20

20

19.5

19.5

*19.5

20

20

20

20

20

20

20

20

20

20

20

20.5

20.5

20.5

624.0

20.1

1,240

June

20.5 

20.5

21

21

20.5

20.5

20.5

20.5

20.5

20.5

21

21.5

*22

21.5

22

21.5

21.5

22

21.5

21.5

21.5

21.5

21.5

21.5

22

22.5

22.5

23

23~ 23. -5

-

644.5

21.5

1,280

July

23 

22.5

21.5

21.5

21.5

21.5

21.5

21.5

21.5

21.5

22

22

22

22

22

22.5

22

22

*22

22

22

22

22

22.5

22.5

22.5

22.5

22.5

*22.5

24

24

687.0

22.2

1,360

Aug.

23.5 

22.5

22.5

22.5

23

23.5

23.5

24.5

24.5

24.5

23.5

23.5

23

22.5

22.5

22.5

22.5

22.5

22.5

23

22.5

23

23

22.5

22.5

23.5

23.5

23.5

23.5

23.5

23.5

717.0

23.1

1,420

Sept.

24 

24

24.5

24.5

24.5

24.5

24

24.5

24.5

25

24.5

24

24.5

25

24.5

25.5

26.5

26.5

26.5

26.5

26.5

27

26.5

26.5

27

26.5

26.5

26

26

26

-

762.5

25.4

1,510

Calendar year 1950: Max - Min - Mean - Ac-ft -

Water year 1950-51: Max 27 Min 19.5 Mean 22.3 Ac-ft 16,110

* Discharge measurement made on this day.

Note. No gage-height record Jan. 28 to Feb. 12; discharge estimated on basis of records for Box 

Canyon Springs near Wendell and Blue Lakes Spring near Twin Falls.
SNAKE RIVER MAIN STEM

Snake River near Kimberly, Idaho

Location. Lat 42°36', long. 114 0 22', in NW£ sec. 4, T. 10 S. , R. 18 E., on left bank 

1,200 ft downstream from Twin Falls powerplant, 2£ mLes upstream from Shoshone Palls, 

and 4 miles north of Kimberly.

Records available.--July 1923 to September 1951.

Gage. Water-stage recorder. Datum of gage is 3,362.67 ft above mean sea level (levels 

by Idaho Power Co.). Prior to Aug. 31, 1938, at site 2,000 ft downstream at different 

datum.

Extremes.--Maximum discharge during year, 14,700 cfs May 16 (gage height, 17.00 ft); minimum, 24 cfs Apr. 24 (gage height, 1.59 ft); minimum daily, 569 cfs Apr. 22.

1923-51: Maximum discharge, 27,200 cfs July 4, 1927 (gage height, 14.76 ft, site 

and datum then in use), from rating curve extended abjve 20,000 cfs; minimum recorded, 

10 cfs May 17, 1944 (gage height, 1.15 ft); minimum dtily recorded, 139 cfs July 4, 

1941.

Remarks. Records good. Flow regulated by Twin Falls powerplant and several reservoirs 

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

no diversion between Milner and Kimberly.

Rating table, water year 1950-51 (gage height, In

feet, and discharge, In cubic feet per second)

(Shifting-control method used Jan. i.l to

Mar. 3, May 1 to July 21)

4.9 

5.5 

6.0 

7.0 

8.0

550

740

925

1,350

1,840

9.0

11.0

13.0

15.0

16.6

1,520

4,500

7 170

10.700

14,100

Discharge, In cubic feet per second, water year October 1150 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

Total

Mean

Ac- ft

Oct.

3,570

4,250 

* 4,000

3,560

3,150

2,060

2,500

2,670

2,420

2,560

2,710

2,700

2,660

2,970

3,640

3,720

3,740

3,860

4,110

3,880

3,570

3,340

2,960

2,140 

2,390

3,110

4,050

1,600

3,430

3,430

3,410

98,160

3,166

194,700

Nov.

3,540

3,650 

2,760

625

3,160

3,250

3,180

3,130

3,270

3,280

3,400

4,370

2,370

3,100

*2,880

2,920

2,130

2,460

3,550

3,600

3,960

4,970

4,960

4,810 

5,030

5,160

4,310

3,420 

3,150

3,050

-

105,445

3,515

209,100

Dec.

3,050

3,470 

4,160

4,130

4,070

4,080

4,110

4,100

4,110

4,200

4,240

*4,010

4,010

4,050

4,260

4,460

4,800

4,780

4,520

4,360

4,630

5,020

5,130

5,280 

5,180

4,900

4,660

4,620 

4,480

4,570

4,610

136,050

4,389

269,900

Jan.

4,550

5,630 

4,790

5,050

4,980

4,990

4,880

4,140

4,390

6,760

7,740

8,430

8,480

8,530

8,540

8,530

8,260

8,460

8,390

7,280

8,020

8,200

9,590

10,700 

10,700

10,400

10,400

10,200 

4,510

10,300

10,600

234,420

7,562

465,000

Feb.

10,600

10,700 

10,700

11,200

11,900

12,300

*11,700

11,500

11,800

11,700

10,800

10,500

10,900

10,700

10,500

10,300

10,500

10,100

10,300

10,800

10,500

9,660

9,590

9,640 

9,870

10,100

8,960

9,000

-

-

296,820

10,600

588,700

Mar.

9,740

9,910 

9,640

10,000

10,000

10,500

10,100

10,200

10,000

9,990

10,100

* 10, 000

9,930

10,200

9,970

8,910

10,200

10,300

9,950

10,000

10,100

9,510

10,100

10,200 

9,800

9,450

9,780

10,300 

10,200

10,100

10,100

309,280

9,977

613,400

Apr.

10,000

8,800 

10,300

10,100'

9,720

9,140

8,960

8,890

8,010

8,850

8,460

7,040

5,460

4,910

4,190

4,860

3,120

2,140

1,820

*1,520

885

569 T22-

704 

1,860

1,660

1,580

1,250 

1,020

1,660

-

148,200

4,940

294,000

May

8,980

9,570 

10,600

9,380

8,940

7,880

7,590

5,760

5,760

4,610

4; 450

6,300

9,990

11,200

13,700

14,100

11,800

9,510

9,180

8,650

8,780

11,500

*10,900

9,440 

9,590

10,400

10,300

9,760 

10,900

10,100

9,740

289,360

9,334

573,900

June

8,260

8,590 8,'06"o

8,090

6,610

5,650

5,280

3,960

2,270

1,610

1,540

1,170

*l,030

664

764

921

643

'g§4 643

921

873

1,620

5,960

4,'40 

1,120

s;7

4,4(3

5,873 

3,50)

2,20t

-

July

1,650

1,520 

1,060

1,000

803

843

655

687

973

708

*857

941

905

616

656

671

758

666

690

713

689

700

1,100

1,050 

758

973

893

889 

921

1,190

1,140

98,310 27,655

3,277

195,000

892

54,850

Aug.

1,260

1,150 

989

1,020

1,240

1,240

1,300

1,380

913

837

750

8lO

814

789

802

802

753

2,170

3.500

2,340

1,220

953

1,030

1,480 

1,040

925

957

817 

*806

799

818

35,704

1,152

70,820

Sept.

817

819 

840

803

812

805

782

1/520"

961

841

896

858

1,250

1,180

1,040

912

1,060

1,100

1,060

1,040

1,330

1,060

997

1,040 

1,560

1,170

1,460

1,580 

1,700

3.530

-

34,323

1,144

68,080

Calendar year 1950: Max 18,500 Mln 483 Mean 4,443 Ac-ft 3,217,000

Water year 1950-51: Max 14,100 Mln 569 Mean 4,969 Ac-ft 3, 597, 100

* Discharge measurement made on this day.
70 BLUE LAKES SPRING BASIN

Blue Lakes Spring near Twin Palls, Idaho

Location.--Lat 42°37 1 , long. 114°28 I , in N|SE£ sec. 28, T. 9 S. , R. 17 E. , at outlet of 

upper Blue Lake, 1.4 miles northvest of Perrine Memorial Bridge and 3| miles north of 

Twin Palls.

"Records available. April 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 3,300 ft (from Snake River profile map).

Extremes.--1950-51: Maximum daily discharge, 248 cfs Oct. 15-17, 27, 1950, Sept. 19, 20, 

1951; minimum daily, 208 cfs Jun3 5, 7-28, 1950.

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

good. No diversion or regulation above station.

Rating table, water year 1950-51 (gage height, in feet, 

and dlschirge, In cubic feet per second)

1.7

1.8

1.9

190

224

266

Discharge, In cubic feet pe' second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

244

244

244

*244

244

244

244

244

244

244

244

244

244

244

248

248

248

244

244

244

244

244

244

244

244

244

248

244

244

244

244

7,580

245

15,030

Nov.

244

244

240

240

240

240

240

240

244

244

244

244

240

*240

240

240

240

240

24O

240

244

244

244

244

244

240

240

244

244

240

-

7,252

242

14,380

Dec.

240

240

240

240

240

244

244

244

244

244

244

240

*244

244

244

244

244

244

244

244

244

244

244

244

244

244

244

244

244

240

240

7,532

243

14,940

Jan.

236

236

236

236

23f

233

233

2;6

2i6

256

36

36

36

;36

;36

136

!36

136

!36

.'36

236

236

236

232

232

232

232

230

230

230

230

7,276

235

14,430

Feb.

230

230

230

230

230

230

230

225

225

225

225

225

*224

224

224

224

224

224

224

224

224

224

224

224

224

224

228

228

-

-

-

6,327

226

12,550

Mar.

228

228

228

228

252

232

228

228

228

228

228

228

*228

224

224

228

232

232

232

228

228

228

228

228

228

228

228

228

232

232

232

7,092

229

14,070

Apr.

232

232

232

232

232

232

232

232

232

232

232

232

232

232

232

232

232

232

228

228

*228

228

228

228

228

228

228

228

228

228

-

6,912

230

13,710

May

228

228

232

228

228

228

228

228

228

228

228

228

228

228

228

228

*224

£2T

224

224

224

224

224

224

 224

224

228

228

228

228

228

7,032

227

13,950

June

228

228

228

224

224

224

224

224

224

224

224

224

*228

228

224

224

224

224

224

220

224

224

224

224

224

224

220

220

220

220

-

6,720

224

13,330

July

220

220

224

220

220

220

220

220

2 2O

220

220

220

220

220

220

2 2O

220

*220

224

228

228

228

228

228

228

228

228

228

228

228

252

6,928

223

15,740

Aug.

236

236

256

252

252

252

232

232

252

232

236

236

256

256

256

256

256

256

240

240

240

256

256

256

240

240

240

240

256

*256

256

7,516

236

14,510

Sept.

240

240

240

240

240

240

240

240

240

240

240

240

240

240

240

244

244

244

244

248

244

244

244

244

244

244

244

244

244

244

-

7,264

242

14,410

Calendar year 1950: Max - Mln - Mean - Ac-ft -

Water year 1950-51: Max 248 Mln 220 Mean 234 Ac-ft 169,000

* Discharge measurement male on this day.

Note. No gage-height reccrd Jan. 28 to Feb. 12; discharge computed on basis of records for other 

Snake River springs and flot during adjacent periods.
ROCK CREEK BASIN 71

Rock Creek near Rock Creek, Idaho

Location. Lat 42°22', long. 114°18', in sec. 25, T. 12 S., R. 18 E., on right bank 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.

Drainage area. 80 sq mi, approximately.

Records available. November 1909 to August 1913, November 1938 to July 1939, November 

1943 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,340 ft (by barometer). November 1909 

u> August 1913 staff gage at site 2 miles downstream at different datum, Nov. 23, 

1938, to July 21, 1939, staff gage at present site at datum 1.25 ft higher.

Average discharge. 7 years (1944-51), 37.1 cfs.

Extremes. Maximum discharge during year. 265 cfs May 11 (gage height, 2.73 ft); minimum, 

 4~74~~cfs Aug. 11 (gage height, 0.52 ft).

1909-13, 1938-39, 1943-51: Maximum discharge observed, 429 cfs May 21, 1912 (gage

height, 10.4 ft, site and datum then in use); minimum observed, 3.6 cfs Aug. 7-12, 1910

(gage height, 0.3 ft, site and datum then in use).

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

which are.fair. Small ranch diversions above station.

Rating table, water year 1950-51 (gage height, In feet,

and discharge. In cubic feet per second) 

(Shifting-control method used Apr. 22 to May 31)

0.6

.7

1.0

1.3

5.0

8.3

13

24

49

1.6 

2.0 

2.4 

2.9

80

127

183

260

Discharge, In cubic feet per second, water year October 1950 to Septetaber 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

Total

Mean

Ac-ft

Oct.

10

10

9.6

9.2

9.2

9.6

9.6

10

10

9.6

9.2

9.2 

9.2

9.2

9.6

10

9.6

9.6

9.6

9.6

9.6

9.6

1O

9.6

10

9.6

10

11

11

10

ii

306.0

9.87

607

Nov.

12

14

12

11

11

11

11

13

*12

9.2

10

10

11

11

11

1011

12

13

15

24

18

14

13

13

12

12

12

12

12

-

372.2

12.4

738

Dec.'

12

12

21

38

28

24

31

31

29

28

28

*28 

26

25

24

23

21

20

20

19

18

18

17

17

17

16

16

16

16

16

16

671

21.6

1,33O

Jan.

15

16

16

16

15

10

8.7

12

14

16

17

16 

15

15

15

15

15

16

13

11

14

18

21

21

26

30

29

*28

26

2O

20

539.7

17.4

1,070

Feb.

22

25

30

40

45

70

90

82

90

S3

90

95. 

90

79

65

55

45

36

32

29

33

35

32

30

28

27

27

*28

-

-

-

1,439

51.4

2,850

Mar.

25

26

26

25

25

25

24

24

25

24

23

21 

21

21

23

24

23

23

23

24

26

30

30

31

34

38

40

41

42

44

43

874

28.2

1,730

Apr.

15.

43

47

58

74

84

94

107

112

122

118

115 

124

146

154

*160

161

171

171

182

176

168

160

154

141

141

141

154

174

168

-

3,863

129

7,660

May

158

*147

146

161

192

212

f238

f254

f250

f252

257

250 

231

216

213

207

207

216

219

212

206

196

*189

182

171

161

154

148

139

127

US

6,026

194

11,950

June

~9~9 107

91

84

82

74

71

69

64

60

57

58 

58

*52

49

47

44

44

43

40

39

38

38

36

35

34

32

30

30

29

1,634

54.5

3,240

July

29

28

25

24

24

24

23

23

22

21

21

21 

19

18

17

*17

17

17

16

16

16

16

14

14

14

13

14

14

15

14

13

579

18.7

1,150

Aug.

13

12

1*

13

13

13

13

13

12

12

10

9.2

9.2

9.2

9.6

9.6

9.6

9.2

8.7

9.6

11

*12

13

12

11

10

10

10

10

10

10

340.9

11.0

676

Sept.

~*jT. 10 6

9.e

9.6

9.2

9.2

S.7

8.3

8.7

8.7

8.7

8.7 

8.7

8.7

9.2

8.3

8.3

8.0

8.0

7.6

8.3

8.7

8.7

8.3

8.3

8.3

8.7

8.3

8.3

8.3

260.0

8.67

516

Calendar year 1950: Max 252 Mln 6.6 Mean 38.0 Ac-ft 27,480

Water year 1950-51: Max 257 Mln 7.6 Mean 46.3 Ac-ft 33,520

* Discharge measurement made on this day.
72 SNAKE RIVER MAIN STEM

Snake River near Buhl, Idaho

Location. Lat 42°40', long. 114°43 1 , in NW£ sec. 9, T. 9 S.,R. 15 E., on left bank 2 

miles downstream from Niagara Springs, 3 2 miles upstream from outlet of Clear Lakes, 

and 6 miles northeast of Buhl.

Records available. December 1946 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 2,952.9 ft above mean sea level, by stadia 

levels. Prior to Jan. 17, 1947, staff gage at same site and datum.

Extremes. Maximum discharge during year, 16,200 cfs May 16 (gage height, 8.13 ft); minimum, 2,350 cfs Apr. 23 July 7; minimum gage height, 1.00 ft July V.

1946-51: Maximum discharge, 23,100 cfs June 13, 1947 (gage height, 10.34 ft); minimum observed, 1,900 cfs May 5, 1947 (gage height, 0.38 ft).

Remarks.--Records good. Flow regulated by Twin Falls and Shoshone Falls powerplants 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 1950-51 (gage height, in 

feet, and discharge, in cubic feet per second) 

(Shifting-control method used May 17-27)

1.0 

2.0 

3.0 

4.0

2,400

3,450

4,750

6,450

5.0

6.0 

8.0

8,550

10,900

16,100

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ao- ft

Oct.

5,150 

6.400 

6^240

5,810

*5,370

4,520

4,290

4,700

4,560

4,470

4,690

4,680

4,600

4,630

5,470

5,600

5,650

5,810

5,990

5,940

5,690

5,230

5,150

4,170

4,230

4,660

5,880

4,370

4,740

5,290

5,200

159,180

5,135

315,700

Nov.

5,310 

5,370 

5,180

3,350

3,690

5,170

5,180

S,070

5,020

5,010

5,100

S , 900

4,990

4,740

4,740

*4,720

4,770

5,290

5,420

5,420

5,530

6,580

6,770

6,660

6,700

6,950

6,530

5,340

4,960

4,780

-

160,240

5,341

317,800

Dec.

4,770 

4,930 

5,720

6,120

5,720

5,770

*5,850

5,760

5,770

5,880

5,940

5,760

5,690

5,760

5,900

6,120

6,390

6,540

6,320

6,100

6,130

6,600

6,740

6,870

6,950

6,660

6,390

6,220

6,150

6,100

6,120

187,740

6,056

372,400

Jan.

6,210 

5,210 

6,390

6,410

6,530

6,450

6,410

5,940

5,370

7,670

8,830 9.:io

*, 820

9,860

9,950

9,930

9,720

9,770

9,750

8,870

9,010

9,260

10,200

11,900

11,800

11,600

11,600

11,500

7,190

10,700

12,000

275,460

8,886

546,400

Feb.

12,200 

12,000 

11,900

12,200

12,900

13,600

13,100

*12,700

12,700

13,100

12,100

11,700

11,900

11,900

11, BO'-

11, 500

11,700

11,500

11,300

11,900

11,800

11,000

10,700

10,800

11,100

11,200

10,700

10,000

-

_

-

331,000

11,820

656,500

Mar.

10,800 

11,200 

10,700

11,200

11,100

11,600

11,500

11,300

11,400

11,100

11,400

11,400

11,300

*11,500

11,400

10,400

11,200

11,700

11,300

11,300

11,500

11,000

11,100

11,500

11,000

10,800

10,900

11,600

11,500

11,500

11,400

348,600

11,250

691,400

Apr.

11,400 

10,900 

10,700

11,400

11,100

10,600

10,400

10,400

10,100

10,200

10,400

9,030

7,310

6,450

5,810

6,450

5,330

3,880

3,680

3 , 440

3,030

£,740

2,500

2,510

2,730

3,490

3,330

3,180

3,160

3,240

-

198,890

6,630

394,500

May

8,850 

*11,OOO 

12,200

11,500

10,800

9,910

9,560

8,620

7,400

7,760

5,880

7,130

11,600

12,900

15,300

15,900

14,000

11,500

11,000

10,700

10,500

12,500

13,000

*11,400

11,300

11,800

12,100

11,500

12,400

12,200

11,700

343,910

11,090

682,100

June

10,500 

10,200 

9,950

10,000

9,100

7,910

7,230

6,340

4,720

3,740

3,380

*3,265

3,040

2,860

2,640

2,710

2,750

2,610

-?,S50

2,780

2,840

2,780

6,440

6,950

4,720

2,960

4,360

7,720

5,740

4,320

-

157,200

5,240

311,800

July

3,530 

3-, 340 

3,020

2,770

2,630

2,620

2,510

2,420

2,540

2,670

2,560

*2,620

2,680

2,570

2,440

2,420

2,410

2,420

2,440

2,450

2,460

X,460

2,610

2,820

2,710

2,590

2,730

2,660

2,740

2,870

3,070

82,780

2,670

164,200

Aug.

3,060 

3,080 

2,950

2,960

2,980

3,140

3,260

3,360

3,130

2,810

2,760

2,660

2,720

2,660

2,650

2,660

2,700

3,100

5,760

4,430

3,530

2,990

2,850

3,150

3,260

2,930

2,900

2,930

2,850

*2,840

2,820

95,880

3,093

190,200

Sept.

2,850 

2,860 

2,850

2,960

2,950

2,950

2,940

2,990

3,150

3,090

3,070

3,100

3,160

3,360

3,220

3,110

3,080

3,290

3,200

3,200

.',180

3,460

3,210

3,180

3,400

3,560

3,410

3,710

3,750

4,800

-

97,040

3,235

192,500

Calendar year 1950: Max 19,700 Mln 2,310 Mean 6,181 Ac -ft 4,475,000

Water year 1950-51= Max 15,900 Min 2,410 Mean 6,679 Ac-ft 4,836,000

* Discharge measurement made on this day.
BOX CANYON SPRINGS BASIN 73

Box Canyon Springs near Wendell, Idaho

Location.--Lat 42°42'30", long. 114°48'45", in NE£ sec. 28, T. 8 S., R. 14 E., on left

bank 150 ft below a waterfall, half a mile above mouth, three-quarters of a mile below

source, and 7^ miles southwest of Wendell.

Records available. April 1950 to September 1951. 

^Sage. Water-stage recorder. Altitude of gage is 2,950 ft (from topographic map).

Extremes. 1950-51: Maximum daily discharge, 480 cfs Sept. 19, 20, 28, 29, 1950; minimum 

daily, 372 cfs Apr. 12, 13, 1951.

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

good. No surface diversion or regulation above station. Discharge affected by variable surface waste from irrigation canals over rim rocks into springs above station. 

This waste measured or estimated on Oct. 4 (6.5 cfs). Dec. 13 (9.3 cfs). Feb. 15 

(4 cfs), Mar. 14 (5.2 cfs), Apr. 21 (5 cfs), May 17 1.5 cfs), June 12 5.5 cfs), July 

18 (0.2 cfs), Aug. 31 (0.5 cfs).

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.4 

1.6 

1.9

352

402

480

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

472

466

464

*458

464

464

458

466

461

458

453

450

445

450

453

445

440

440

440

440

437

435

435

432

435

437

443

453

458

453

448

13,953

450

27,680

Nov.

443

445

450

A5£

450

445

448

440

432

432

432

445

435

435

436

437

*437

437

440

435

435

432

430

432

432

432

430

432

432

443

-

13,140

438

26,060

Dec.

443

440

443

448

155

435

437

435

430

430

430

430

*430

427

430

424

424

427

424

422

422

422

424

424

425

425

425

420

415

415

415

13,276

428

26,330

Jan.

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

410

12,710

410

25,210

Feb.

4Q5

405

405

405

405

405

405

405

405

405

405

405

400

400

*400

400

400

404

394

400

402

400

402

400

402

397

402

397

-

-

-

11,260

402

22,330

Mar.

394

597

392

397

397

397

394

394

394

390

390

387

392

*390

392

390

387

384

387

387

387

384

382

382

382

382

382

382

382

382

382

12,041

388

23,880

Apr.

377

374

374

374

374

374

380

384

384

380

374

372

374

377

384

382

374

374

374

374

*377

380

382

377

377

377

380

380

390

397

-

11,351

378

22,510

May

402

394

387

387

382

380

382

380

380

380

382

387

390

390

387

382

*384

384

390

390

387

387

387

390

392

392

392

392

394

397

397

12,027

388

23,860

June

397

397

397

402

404

404

407

410

407

410

412

412

41i

412

412

410

*410

412

410

412

412

410

412

412

412

412

412

410

412

412

-

12,267

409

24,330

July

410

410

410

410

412

410

*412

412

412

414

417

417

417

414

414

414

414

414

412

414

414

414

414

414

417

417

417

420

420

422

422

12,850

415

25,490

Aug.

424

424

427

427

427

427

430

432

437

435

432

430

430

427

427

427

427

427

427

432

432

432

435

435

435

437

440

443

443

440

*437

13,385

432

26,550

Sept.

437

437

440

440

443

443

443

443

443

448

445

445

448

450

450

445

445

445

448

448

445

445

445

445

448

450

450

453

453

450

-

13,370

446

26,520

Calendar year 1950: Max - Min - Mean - Ac-l"t -

Water year 1950-51: Max 472 Min 372 Mean 415 Ac-ft 300,800

25 to Feb. 14; discharge estimated on basis of recSnake River springs.
SALMON PALLS CREEK BASIN

Salmon Palls Creek above upper Vineyard ditch, near Contact, Nev.

Location. Lat 41 0 44'00", long. 114°52'30", near northwest corner, sec. 5, T. 44 N., R. 

63 E., on left bank three-quarters of a mile above former diversion point for upper 

Vineyard ditch, 1-J- miles above present diversion dam, and 6 miles southwest of Contact.

Drainage area. 439 sq mi.

Records available. May 1914 to July 1915, October 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 5,570 ft (by barometer). May 17, 1914, 

to July 25, 3915, water-stage recorder at site three-quarters of a mile downstream at 

different datum.

Extremes. Maximum discharge during year, 571 cfs May 12 (gage height, 3.83 ft); minimum, 

19 cfs Sept. 9 (gage height, 1.27 ft).

1914-15, 1948-51: Maximum discharge, 750 cfs May 16, 1949 (gage height, 4.31 ft); 

minimum, 16 cfs Sept. 6, 1949 (gage height, 1.21 ft).

Remarks. Records good except those for periods of ice effect, which are fair. Many diversions above and below station for irrigation.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

1.2 

1.4 

1.6 

2.0 

2.5

28

44

90

170

3.0 

3.4 

3.8

290

421

571

Discharge, in cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Oct.

26

27

26

26

26

26

26

26

26

26

26

26

26

26

26

26

27

27

27

27

28

28

28

29

29

29

30

30

30

29

35

850

27.4

1,690

Nov.

34

33

34

34

33

32

32

*32

31

29

30

31

33

33

33

31

33

38

33

30

39

38

36

34

34

34

34

33

31

34

-

996

33.2

1,980

Dec.

36

33

39

56

44

39

45

*47

46

45

44

45

45

43

43

42

41

40

40

40

39

37

35

35

36

35

35

34

37

40

37

1,253

40.4

2,490

Jan.

33

35

34

36

34

b27

b23

b26

b34

33

34

34

31

34

34

35

36

b35

b35

b24

b35

42

40

44

46

45

46

43

34

b27

b28

1,077

34.7

2,140

Feb.

b30

b34

39

46

81

106

145

197

125

150

154

118

86

*80

87

77

69

73

63

57

69

66

63

55

54

55

49

44

_

_

-

2,272

81.1

4,510

Mar.

46

53

46

48

50

47

50

51

57

43

42

44

*63

I§1

154

135

82

60

63

101

150

161

100

96

104

125

127

113

121

124

121

2,741

88.4

5,440

Apr.

113

121

144

182

234

265

299

333

333

376

400

372

372

418

450

439

*439

435

421

425

418

393

372

349

326

352

317

311

414

352

10,175

339

20,180

May

*305

299

273

273

302

379

453

472

464

476

502

559

490

404

346

308

308

*352

421

483

505

453

446

472

472

490

521

536

524

476

396

13,160

425

26,100

June

33O

287

254

226

201

188

182

182

170

166

159

161

161

*156

154

152

156

152

140

133

130

118

113

107

98

94

85

77

72

166

-

4,670

156

9,260

July

66

62

56

50

46

45

43

43

40

36

37

41

40

36

33

30

*29

28

28

28

30

31

28

27

£§

26

28

34

32

30

28

1,137

36.7

2,260

Aug.

26

26

28

30

29

28

29

28

26

24

24

23

23

22

22

|i

ZZ

22

22

24

*26

25

25

26

26

25

24

24

23

23

24

770

24.8

1,530

Sept.

23

23

23

22

22

22

21

21

20

20

20

20

21

20

21

22

22

22

22

21

22

23

23

Zi

24

24

24

24

24

24

-

664

22.1

1,320

Calendar year 1950: Max 716 Min 2O Mean 114 Ac-I't 82,460

Water year 195O-51: Max 559 Min 20 Mean 109 Ac-ft 78,900

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SALMON PALLS CREEK BASIN 

Salmon Palls Creek near San Jacinto, Nev.

75

Location. Lat 41°57', long. 114°42 I , In sec. 23, T. 47 N., R. 64 E., on right bank in 

canyon 600 ft downstream from highway bridge, 750 ft downstream from Shoshone Creek, 

and 5 miles north of San Jacinto.

Drainage area. 1,450 sq mi, approximately.

Records available. September 1909 to September 1916, October 1918 to September 1951.

Gage. Water-stage recorder. Prior to June 30, 1910, staff gage at nearby site at different datum.

Average discharge. 37 years (1910-16, 1919-20, 1921-51), 131 cfs.

Extremes. Maximum discharge during year, 1,220 cfs Peb. 8 (gage height, 8.66 ft); minimum, 

19 cfs Sept. 12, 14, 17-21.

1909-16, 1918-51: Maximum discharge, between 2,060 and 2,420 ofs Peb. 24, 1943 

(gage height exceeded range of recorder, 10.20 ft, but was not more than 1.2 ft higher), 

from rating curve extended above 1,400 cfs; minimum, 2.8 cfs Nov. 13, 1947, during 

channel improvement work upstream.

Remarks. Records good except those for June 18 to July 16 and those for periods of no 

gage-height record, which are fair. Many diversions above station for irrigation. 

Salmon Dam of Salmon River Canal Co., 15 miles below station, forms a reservoir having 

a capacity of 182,650 acre-ft.

Rating tables, water year 1950-51 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Feb. 7-10)

Oct. 1 to Feb. 8 Feb. 9 to Sept. 30

3.9

4.0 

4.3 

4.6 

5.0

71

106

164

5.5 

6.0 

7.0 

8.0

259

373

637

939

3.9

4.0 

4,3 

4.6 

5.0

16

20

43

85

163

5.5 283

6.0 428

7.0 760

7.6 965

Discharge, In cubic feet per second, water year October 1950 to September 1951

Bay

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

39

41

40

40

40

40

40

40

43

42

43

40

40

40

41

43

42

41

42

42

45

44

46

47

48

48

48

48

48

47

52

1,340

43.2

2,660

Nov.

54

53

52

52

52

51

51

*52

55

54

53

56

57

58

58

*58

58

60

67

68

71

75

71

67

67

66

66

64

63

63

-

1,792

59.7

3,550

Dec.

66

66

68

83

89

81

76

*80

87

92

92

92

92

90

88

87

86

83

81

81

81

79

75

74

74

72

72

72

72

75

73

2,479

80.0

4,920

Jan.

57

74

76

75

68

50

QsS

67

64

72

71

68

72

74

74

75

76

66

44

59

94

87

93

96

94

*94

90

75

53

54

2,205

71.1

4,370

Feb.

58

68

82

104

164

333

629

945

s5s

492

588

447

344

252

a210

a230

a!90

a 200

a!65

a!40

a!65

al50

138

a!20

al!5

a!20

al25

*114

_

-

7,193

257

4,270

Mar.

99

105

101

98

101

98

96

99

103

99

98

98

103

152

307

373

218

148

134

260

397

447

280

225

267

332

318

254

247

265

254

6,176

199

12,250

Apr.

230

240

310

373

457

548

604

658

702

695

753

733

672

672

740

787

*784

777

753

719

692

665

621

578

548

558

591

545

621

692

-

18,318

611

36,330

May

*565

561

542

508

555

675

814

889

889

852

814

865

940

845

729

648

591

*584

621

685

733

736

672

648

648

638

641

661

661

627

574

21,411

691

42,470

June

499

434

394

350

307

270

254

250

237

218

203

201

203

*213

196

187

176

165

159

148

142

136

130

126

120

111

101

90

85

77

6,182

206

12,260

July

69

69

68

68

62

66

65

59

53

47

45

44

43

40

38

36

*35

34

34

37

42

42

41

38

36

36

36

39

47

45

44

1,458

47.0

2,890

Aug.

40

38

44

!§

45

42

40

40

38

36

34

32

30

30

26

25

25

26

26

30

*31

31

30

33

34

32

31

30

30

30

30

1,037

33.5

2,060

Sept.

30

30

29

28

28

27

25

25

22

20

20

20

20

20

20

20

20

20

20

19.

20

20

20

20

20

20

20

21

27

31

-

682

22.7

1,350

Calendar year 1950: Max 787 Min 9 Mean 162 Ac-ft 117,000

Water year 1950-51: Max 945 Mln 19 Mean 193 Ac-ft 139,400

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of weather records and records for station 

near Contact and other nearby streams.
76 SALMON FALLS CREEK BASIN

Salmon River Canal Co. reservoir near Rogerson, Idaho

Location.--Lat 42°13', long. 114°44', in sec. 18, T. 14 S., R. 15 E., at dam on Salmon 

Falls Creek, 10 miles west of Rogerson.

Drainage area. 1,610 sq mi, approximately. 

Records available.--January 1922 to September 1951.

Gage.--Staff gage read once daily. Datum of gage is 4,945.6 ft above mean sea level, 

cTatum of 1929, supplementary adjustment of 1947.

Extremes. Maximum contents observed during year, 90,750 acre-ft May 26-30 (gage height, 

48.8 ft); minimum observed, 9,460 acre-ft Oct. 1-9 (gage height, 7.0 ft).

1922-51: Maximum contents observed, 123,700 acre-ft May 30, 31, 1922 (gage height. 

61.1 ft); minimum observed, 125 acre-ft Sept. 21 to Oct. 5, 1934 (gage height, 0.1 ft).

Remarks. Reservoir is formed by gravity-section concrete-arch dam completed in 1911; 

storage began in 1910. Capacity, 182,650 acre-ft between gage heights 0.0 ft, (bottom 

of outlet tunnel) and 80.0 ft (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.

Cooperation.--Gage readings and capacity table furnished by Salmon River Canal Co.

Contents, in acre-feet, water year October 1950 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.

9,460

9,460

9,460

9,460

9,460

9,460

9,460

9,460

9,460

9,605

9,605

9,605

9,605

9,750

9,750

9,895

9,895

9,895

10,040

10,040

10,180

10,180

10,330

10,330

10,480

10,480

10,620

10,620

10,620

10,620

10,620

Nov.

10,760

10,760

10,760

10,910

10,910

10,910

11,060

11,060

11,060

11,060

11,200

11,200

11,340

11,340

11,490

11,640

11,780

11,920

11,920

11,920

12,070

12,070

12,070

12,220

12,220

12,220

12,350

12,350

12,350

12,500

-

Dec.

12,500

12,640

12,780

12,930

13,080

13,220

13,360

13,510

13,660

13,800

13,950

14,100

14,100

14,250

14,400

14,550

14,700

14,850

15,000

15,150

15,300

15,300

15,300

15,600

15,750

15,750

15,900

15,900

15,900

16,050

16,050

Jan.

16,200

16,350

16,500

16,650

16,650

16,800

16,800

16,950

16,950

16,950

17,100

17,100

17,100

17,100

17,250

17,250

17,250

17,400

17,400

17,400

17,700

17,850

18,000

18,150

18,300

18,460

18,620

18,780

18,780

18,940

19,100

Feb.

19,100

19,260

19,420

19,580

19,580

19,900

20,060

20,220

20,700

24,050

25,750

26,770

27,280

28,130

28,470

28,640

29,150

29,490

29,830

30,000

30,170

30,340

30,680

30,850

31,020

31,360

31,530

31,700

_

_

-

Mar.

31,880

32,070

32,070

32,260

32,260

32,440

32,440

32,620

32,810

33,000

33,180

33,360

33,550

33,550

33,740

33,920

34,100

34,480

35,030

35,580

36,320

36,880

37,620

38,180

38,730

39,280

39,660

40,020

40,580

41,140

41 , 500

Apr.

41,880

42,430

42,800

43,200

43 , 800

44,600

45,400

46,400

47,600

48,800

50,200

51,200

52,400

53,400

54,600

55,600

56 , 800

58,090

59,380

60,880

61,960

63,250

64,530

65,600

66,460

67,540

68,460

69,390

70,540

71,460

-

May

72,610

73,760

_

_

-

_

_

78,820

80,010

81,210

82,410

83,610

84,810

85,770

86,500

87 , 250

88,250

89 , 000

89,000

89,000

89,250

89,750

90,000

90,250

90,500

90,750

90,750

90,750

90,750

90,750

90,500

June

90,500

90 , 000

89,750

89,500

89,000

88,750

88,500

88,000

87,500

86,750

86,250

85,770

85,290

84,810

84,330

83,850

83,370

82,890

82,410

81,930

81,450

80,730

80,010

79,290

78,590

77,900

77,210

76,520

75,600

74,450

-

July

73,300

72,150

71,000

69,850

68,690

67,540

66,460

65,390

64,320

63,250

62,180

61,100

59,810

58,740

57,440

56, 200:

55,000

53 , 800

52,600

51,400

50,200

49,200

48,000

46,800

45,600

44,400

43,200

42,060

40,950

40,020

39,100

Aug.

38,180

37,250

36,320

35,770

35,220

35,030

34,840

34,480

33,920

33,550

33,000

32,260

31,700

31,190

30,510

29,830

28,980

28,130

27,280

26,600

25,750

24,900

24,050

23,200

22,350

21,500

20,860

20,220

19,580

18,940

18,300

Sept.

17,700

17,100

16,650

16,200

15,750

15,450

15,450

15,450

15,450

15,600

15,600

15,450

15,300

15,300

15,300

15,300

15,300

15,300

15,300

15,300

15,300

15.30C

15,300

15,300

15,300

15,300

15,300

15,150

15,150

15,150

-

Monthly gage height and contents, water year October 1950 to September 1951

Date

Oct. 31. ..............

Calendar year 1950 . .

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

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

Water year 1950-51 . .

Gage height 

[feet)

7.0 

7.8 

9.1 

11.5

-

13.5 

21.0 

26.3 

40.7 

48.7 

42.0 

25.0 

13.0 

30.9

-

Contents 

(acre-feet)

9,460 

10,620 

12,500 

16,050

-

19,100 

31,700 

41,500 

71,460 

90,500 

74,450 

39,100 

18,300 

15,150

-

Change in contents 

during month 

(acre-feet)

+1,160 

+1,880 

+3 , 550

+2,830

+3,050 

+12,600 

+9 , 800 

+29,960 

+19,040 

-16,050 

-35,350 

-20,800 

-3,150

+5 , 690
SALMON PALLS CREEK BASIN 77

Salmon River Canal Co. canal near Rogerson, Idaho

Location. Lat 42°15' , long. 114°45', in sec. 7, T. 14 S., R. 15 E., on left bank half a 

mile downstream from Salmon River Canal Co. reservoir and 7 miles west of Rogerson.

Records available. April 1937 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,940 ft (by barometer).

Extremes.--1937-51: Maximum daily discharge, 660 cfs July 21-24, 1944; no flow during 

long periods in each year.

Remarks.--Records good. Canal diverts from Salmon River Canal Co. reservoir for irrigation of lands in Salmon River Canal Co. project.

Cooperation.--Gage-height record furnished by Salmon River Canal Co.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17ia

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

151

158

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

309

10.3

613

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

May

0

0

0

0

0

0

0

0

0

205

244

233

217

226

249

270

294

*308

333

346

360

375

392

414

442

457

477

510

559

562

568

8,041

259

15,950

June

555

531

507

476

458

442

4ee

400

394

374

391

417

402

*395

400

413

418

436

442

448

443

426

404

377

385

395

408

423

432

445

-

12,863

429

25,510

July

452

464

474

495

522

539

548

566

582

603

599

598

598

587

588

600

*604

604

601

606.

596

566

559

557

545

516

501

488

458

396

398

16,810

542

33,340

Aug.

381

376

372

363

341

337

325

310

274

271

278

304

327

335

350

365

366

382

399

402

111 *412

411

402

379

361

345

340

334

324

311

10,889

351

21,600

Sept.

295

278

263

236

186

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

-

1,258

42.0

2,500

Calendar year 1950: Max 523 Mln 0 Mean 122 Ac-ft 88,400

Water year 1950-51: Max 606 Mln 0 Mean 137 Ac-ft 99,500

Discharge measurement made on this day.
78 MUD LAKE-LOST RIVER BASINS

Mud Lake near Terreton, Idaho

Location. Lat 43°53', long. 112°24', in SW£ sec. 1, T. 6 N., R. 34 E., 2 miles north of 

First Owsley pumphouse, 2| miles northeast of Terreton, and 14 miles southwest of 

Hamer.

Drainage area. 7,780 sq mi, approximately.

Records available. April 1921 to September 1951.

Gage. Water-stage recorder. Datum of gage is 4,774.99 ft above mean sea level (unadjusted). Prior to Oct. 31, 1931, staff gages at or near pumphouse at same datum.

Extremes. Maximum contents during year, 37,200 acre-ft Apr. 18; maximum gage height,

7.73 ft Apr. 23 (affected by wind); minimum daily contents, 6,690 acre-ft Oct. 28; minimum gage height, 0.79 ft Oct. 27 (affected by wind).

1921-51: Maximum contents observed, 61,660 acre-ft May 5, 1923 (gage height, 9.20 

ft); practically no contents Oct. 1 to Nov. 15, 1937 (on Nov. 15, 1937, 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 tnrough Camas Creek diversion canal directly to lake outlet channel leading to First Owsley pumping plant. Bypass was not used during 1951. 

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 ft. 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 

staff-gage readings furnished by Owsley Canal Co.

Contents, In acre-feet, water year October 195O 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.

6,880 

C6.910

7,020

7,070

07,100

7,160

7,300

7,420

7,470

7.530

7,530

7,530

7,500

c7,440

7,300

7,270

c7,130

C7,100 

7,070

c6,990

6,940

6,880

6,830

6,770

c6,750

C6.720

c6,720

C6.690

c6,770

c6,770

C6,860

Nov.

6,960 

7^270

7,440

7,620

7,800

7,950

8,170

c8,430

8,590

8,690

-8,860

9,050

9,260

9,460

9,640

9,850

1O,OOO

010,100 

10,400

010,600

010,800

oll.OOO

11,200

11,400

11,600

11,800

12,000

12,200

12,400

C12.600

-

Dec.

C12.8OO 

13,000

13,200

13,400

13,600

13 , 800

14,100

14,300

14,500

14,700

14,900

15,200

15,400

15,600

15,800

15,900

16,100

16,300 

16,500

16,700

17,000

17,200

17,400

17,600

17,800

18,000

18,200

18,500

18,700

18,900

19.100

Jan.

19.400 

19,600

19,800

20,000

20,200

20,400

20,500

20,800

21,000

21,200

21,400

21,600

21,800

22,100

22,200

22,400

22 , 600

22,700 

23 , 000

23,200

23,500

23,700

23,900

24,100

24,300

24,500

24,700

024,800

024,900

C25,100

025.200

Feb.

C25.300 

C25,§0'0

c25,700

026,100

26,400

26,700

26,900

26,900

26,900

27,000

27,000

27,200

27 , 400

27,400

27,500

27 , 800

27,800

28,000 

28,100

28,500

28,700

29,000

29,400

29,500

30,000

30,200

30,200

30.500

_

-

Mar.

30 . 600 

30,700

30,900

30,900

30,900

31,100

31,500

31,700

31,700

031,800

31,900

32 , 000

32,100

32,200

32,400

32,500

32,700

32,800 

32,900

33,100

33,300

33,400

33,500

33,600

33,800

33,900

34,000

34,100

34,200

34,300

54.600

Apr.

34.700 

34,800

35,000

35,100

35,300

35,400

35,500

35,700

C35.800

35,900

36,000

36,200

36,400

36,600

36,700

36,900

37,000

37.100 

37,000

37,000

37,000

37,000

37,000

37,000

36,900

36,800

36,500

36,100

36,100

35,900

-

May

35.600 

35,200

34,800

34,200

33,700

33,300

32,700

32,300

31,700

31,100

30,500

29,900

29,900

29,000

28,700

28,200

28,000

27,600 

27,200

26,800

26,500

26,100

25,600

24,900

24,400

23,900

23,500

023,000

22,500

22,200

21 . 800

June

21.500 

21 i 000

20,500

20,200

19,900

19,800

19,700

19,600

19,400

19,100

18,900

18,700

18,500

18,200

17,900

_

_

-

-

14,600

14,300

013,900

013,500

013,000

12,700

12,300

12,000

11,600

11.20O

-

July

10.900 

10,600

10,300

09,990

09,710

09,460

09,360

9,150

9,050

8,920

8,720

8,590

8,430

08,330

8,200

8,110

8,020

7,890 

07,800

7,590

7,470

_

_

.

-

_

.

-

_

6,770

6.750

Aug.

6.750

.

-

-

_

7,420

7,590

7,740

7,920

08,080

08, 170

08, 270

8.300

B,270

8,050

7,950

7,710 

7,530

7,530

_

7,530

-

-

-

7,500

7,500

7,560

7,590

7,650

7,740

Sept.

7,860 

8,050

8,270

8,360

8,490

8,560

08,560

8.530

8,510

08,560

08, 560

8,530

8,530

08, 530

08, 530

8,530

8,430

8,330 

08,200

08, 050

7,800

7,740

7,740

07,650

07,500

07,440

7,440

07,330

07,210

07.100

-

c Gage height affected by wind; contents computed from partial day gage height not affected by 

wind.

Monthly gage height and contents, water year October 1950 to September 1951

Date

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

Oct. 31........... .....

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

Calendar year 1950...

May 31 ................

July 31 ................

Aug . 31 ................

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

Water year 1950-51 . . .

Gage height 

(feet)t

4.64

-

1.62

-

Contents 

(acre-feet)

6,830

6,910

19,200

-

21,600

7,800

7,050

-

Change in contents 

during month 

(acre-feet)

+80

+6,500

-1,000

+5,200

+4,100

+1,100

-14,100

-10,600

-4,230

+1,030

-750

+220

t Gage height at 12 p.m.

g Computed on basis of once-daily staff gage readings
MUD LAKE-LOST RIVER BASINS 

Cams Creek at Eighteenmile shearing corral, near Kilgore, Idaho

Location. Lat 44°18', long. 111°52' , in sec. 7, T. 11 N., R. 39 E., en right bark at highway 

bridge at Eighteenmile shearing corral, Just downstream from West Camas Creek, 7 miles 

south of Kilgore, and 18f miles northeast of Dubois.

Drainage area. 210 sq mi, approximately.

Records available. May 1937 to September 1951 (no winter records prior to 1947).

Gage. Water-stage recorder. Altitude of gage is 5,260 ft (by barometer). Prior to Sept. 

23, 1938, at datum 1.21 ft higher.

Average discharge. 5 years (1946-51), 65.2 cfs.

Extremes. Maximum discharge, 1,030 cfs Apr. 8 (gage height, 5.05 ft); minimum, not determined, occurred during period of ice effect.

1937-51: Maximum discharge, 1,340 cfs Apr. 21, 1946 (gage height, 6.08 ft), from 

rating curve extended above 500 cfs; 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.

Rating table, water year 195O-51, except periods of ice effect (gage 

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

1.4

1.5

1.6 

1.8 

2.0

6.5

12

20

2.5 

3.0 

3.5 

4.0 

4.8

212

365

521

681

940

Discharge, in cubic feet per second, water year October 1950 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

3O

31

Total

Mean

Ac- ft

Oct.

22

24

24

24

26

26

26

26

24

24

24

24

22

22

22

24

26

24

24

24

24

24

24

24

24

24

26

26

*26

26 

28

758

24.5

1,500

Nov.

33

32

30

28

30

34

34

31

26

2£

24

24

24

24

24

24

26

26

26

26

26

25

26

26

26

27

28

28

26

27

813

27.1

1,610

Dec.

(*)

23

11 *°

698

22.5

1,3BO

Jan.

18

542

17.5

1,080

Feb.

(*)

14

_

-

392

14.0

778

Mar.

12

(*)

372

12.0

738

Apr.

3O

So

70

150

250

500

70O

91O

94O

6OO

580

60O

598

540

439

362

365

421

356

239

2OO

*159

131

120

109

109

122

125

159

200

10,134

338

20,100

May

156

117

97

83

74

83

104

142

173

153

128

136

2O6

263

2T5

168

142

133

133

139

139

*136

139

147

162

159

142

136

136

133

125

4,399

142

8,730

June

128

120

104

94

90

104

115

102

92

81

74

74

133

~57 142

78

68

61

54

*51

48

48

51

51

46

44

44

41

36

33

2,304

76.8

4,570

July

SO" 31

30

28

26

22

20

2O

19

20

22

28

26

24

20

19

18

17

17

20

22

20

18

17

16

16

18

20

*26

28

26

684

22.1

1,360

Aug.

26

24

24

282"8

28

28

26

26

26

24

20

19

16

14

14

14

13

11

10

10

14

14

19

20

2O

20

2O

*20

20 

24

620

20.0

1,230

Sept.

20

18

18

16

16

14

14

15

15

14

12

13

13

12

13

13

14

14

13

11

12

14

12

12

12

13

14

14

14

14

419

14.0

831

Calendar year 1950 : Max 700 Mln - Mean 67.6 Ac-ft 48,930

Water year 1950-51: Max 940 Mln - Mean 60.6 Ac-ft 43.91O
80 MUD LAKE-LOST RIVER BASINS

Camas Creek at Camas, Idaho

Location.--Lat 44°00', long. 112°13', In E|SE£ sec. 21, T. 8 N., R. 36 E., on left bank 

150 rt (revised) upstream from Oregon Short Line Railroad bridge at Camas and half 

a mile upstream from Beaver Creek.

Drainage area. 320 sq ml, approximately. 

Records available. April 1925 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 4,780 ft (by barometer). Apr. 13 to 

Aug. 20, 1925, staff gage at site 0.1 mile downstream at different datum. Aug. 21, 

1925, to mr. 25, 1927, staff gage and Mar. 26, 1927, to Sept. 14, 1938, water-stage 

recorder at site 250 ft upstream at datum 2.01 ft higher.

Average discharge. 25 years (1926-51), 25.2 cfs.

Extremes. Maximum daily discharge during year, 650 cfs Apr. 9; minimum discharge, 0.4 cfs 

Nov. 27 (gage height, 1.71 ft).

1925-51: Maximum discharge, 900 cfs probably Way 3, 1938 (gage height, 3.98 ft, 

site and datum then in use, from floodmark), from rating curve extended above 400 cfs; 

no flow during periods in many years.

Remarks. Records good except those below 10 cfs, 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 Six field estimates of discharge furnished and water-stage recorder inspected by Water District No. 66.

Revisions (water years). W 813: 1935. W1123: 1947.

Rating tables, water year 1950-51, except periods of Ice effect (gage 

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

Oct. 1 to May 23 May 24 to Sept. 30

1.8

1.9

2.0

2.1

2.2

1.9

4.5

2.4 

2.7 

3.0 

3.5

4.1

109

198

337

1.7

1.8

1.9 

2.1

1.7

3.1

5.2

12

2.3 

2.5 

2.8

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

5.6

7.9

8.3

9.8

11

12

11

9.3

8.3

7.5

6.8

6.8

6.4

6.0

4.2

4.5

4.5

6.4

10

8.8

7.9

7.9

7.9

7.9

7.9

7.9

7.9

8.8

9.8

*12

13

254.0

8.19

504

Nov.

13

18

T6

14

13

10

12

15

14

13

12

12

12

12

12

12

13

13

13

13

13

13

11

13

13

13

12

13

13

13

-

389

13.0

772

Dec.

13

13

13

13

13

13

13

13

13

13

13

*13

 13

/ 10

388

12.5

770

Jan.

(**)

8

(**)

' 7

244

7.9

484

Feb.

(**)

7

(**)

-

-

196

7.0

389

Mar.

(*)

> 6

(**)

8

(»*)

208

6.7

413

Apr.

20

60

120

200

300

500

600

650 560"

440

430

440

420

360

325

263

279

296

240

*158

142

120

105

90

82

85

88

92

109

-

7,614

254

15,100

May

121

99

83

69

61

57

60

72

92

99

92

85

91

116

155

112

96

81

78

81

81

82

*76

69

73

80

77

72

67

66

66

2,589

83.5

5,140

June

63

66

62

54

47

45

49

56

48

43

39

35

33

65

69

52

43

38

33

*29

26

25

25

25

26

24

22

21

20

17

-

1,200

40.0

2,380

July

16

I?

16

15

14

12

11

10

9.0

7.9

7.6

7.9

11

14

12

9.3

9.0

8.2

7.6

6.4

6.7

7.9

8.2

7.0

6.1

5.0

5TO

5.0

7.6

*8.6

10

293.0

9.45

581

Aug.

12

11

10

11

10

12

13

I?

12

11

10

9.3

8.2

7.3

7.6

6.7

6.1

5.5

4.8

5.2

4.4 575"

6.4

6.1

6.4

8.6

9.0

8.2

»7.3

7.3

7.3

261.2

8.43

518

Sept.

9.3

12

8.6

7.6

7.6

6.1

5.8

5.5

5.0

4.6

4.6

4.2

3.5

3.1

3.5

3.7

3.3

2.8

4.2

3.0

2.4

2.3

T7T

3.3

2.8

2.7

2.8

3.3

3.9

-

144.2

4.81

286

Calendar year 1950: Max 431 Mln 0.4 Mean 36.8 Ac-ft 26,660

Water year 1950-51: Max 650 Mln 2.3 Mean 37.8 Ac-ft 27,340

* Discharge measurement made on this day.

** Field estimate made on this day.

Note.--Stage-discharge relation affected by Ice Nov. 8-20, 24-2,6, 29, 30, Dec. 1-4, Dec. 6 to 

about Apr. 5. No gage-height record Dec. 13 to Apr. 15; discharge estimated on basis of weather 

records, 6 field estimates, 2 discharge measurements, and records for other stations In Mud Lake 

basin.
MUD LAKE-LOST RIVER BASINS 81 

Beaver Creek at Spencer, Idaho

Location. Lat 44°21', long. 112°11', in NE£ sec. 23, T. 12 N., R. 36 E., on right bank at 

 highway bridge, 0.4 mile southeast of Spencer and Z\ miles upstream from Rattlesnake 

Creek.

Drainage area. 120 sq mi, approximately.

Records available. October 1940 to September 1951 (no winter records 1942-51).

Gage. Staff gage read twice daily. Altitude of gage is 5,850 ft (by barometer).

Extremes. Maximum discharge observed during year, 341 cfs Apr. 7 (gage height, 5.40 ft), 

from rating curve extended above 220 cfs; maximum gage height observed, 6.02 ft Apr. 

1 (ice jam); minimum discharge observed, 2.5 cfs July 19, Aug. 19, 20, 21; minimum gage 

height observed, 1.30 ft Aug. 19, 20, 21.

1940-51: Maximum discharge observed, 408 cfs Apr. 13, 1942 (gage height, 5.10 ft), 

from rating curve extended above 140 cfs; maximum gage height observed, that of Apr. 

1, 1951; minimum discharge observed, 0.5 cfs Jan. 26, 1942, Feb. 22, 1944.

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

indefinite stage-discharge relation, which are poor. Several ranch diversions above 

station.

Rating tables, water year 1950-51 (gage height, in 

feet, and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1 to Apr. 5)

Oct. 1 to Sept. 5 Sept. 6-30

1.3 

1.5 

1.7 

2.0 

2.5

2.6

5.3

9.6

19

40

3.0 71

3.5 111

4.0 161

4.9 271

2.8

2.9

4.0 

5.4

Discharge, in cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Oct.

12

13~~ 9.9

18

11

13

12

9.9

11

12

11

10

9.9

10

12

15

13

13

12

12

12

12

13

13

14

15

16

18

*16

14

20

402.7

13.0

799

Nov.

22

18

17

18

16

18

20

19

15

13

13

13

15

17

15

16

18

20

19

16

15

14

13

12

12

22

21

18

19

18

502

16.7

996

Dee.

14

16

20

18

18

18

16

16

16

16

22

20

*18

12

11

16

a!5

alO

457

14.7

906

Jan.

_

-

-

Feb.

_

-

-

Mar.

_

_

-

Apr.

30

40

70

190

230

264

2^4

220

154

103

68

87

88

74

67

59

60

61

56

45

40

*40

40

38

40

40

60

60

108

78

2,774

92.5

5,500

May

55

50

42

40

40

40

42

44

45

40

38

41

42

38

36

44

40

40

37

36

34

*33

33

31

28

28

26

26

25

24

?5

1,146

37.0

2,270

June

27

25

22

21

24

30

38

57

26

26

24

24

37

28

25

20

19

16

13

*11

12

14

18

16

14

14

16

15

13

11

631

21.0

1,250

July

11

10

9.6

8.7

8.4

7.5

5.5

4.4

4.1

5.2

10

10

7.1

5.5

4.7

3.8

3.6

3.6

2.6

4TO

4.6

4.2

3.6

3.3

3.7

3.3

3.8

4.4

*19

IS

9.4

201.6

6.50

400

Aug.

8.2

7.3

7.8

26

T7

14

13

11

11

9.6

7.8

7.1

6.7

5.3

5.2

4.4

3.7

3.1

2.5 276"

2.6

4.7

10

10

12

9.4

6.9

6.1

*6.7

8.9

7.3

257.9

8.32

512

Sept.

5.9

57?

5.3

5.2

5.2

4.

4.

4.

4.

a4.

a4.

a4.

a4.

a4.

4.7

4.7

a4.8

a4.9

a4.7

a4.5

a4.5

4.7

4.7

4.8

4.6

4.7

4.8

5.0

4.8

5.1

145.1

4.84

288

Calendar year : Max Mln Mean Ae-i"t

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for station at 

Dubois.

Note.--Stage-discharge relation affected by ice or stage-discharge relation indefinite because of 

bridge construction Oct. 18-28, Nov. 8-23, 26, 27, Apr. 1-5.
82 MUD LAKE-LOST RIVER BASINS

Beaver Creek at Dubois, Idaho

Location. Lat 44°11', long. 112°14', in NW£ sec. 21, T. 10 N., R. 36 E., on left bank 

half a mile north of Dubois.

Drainage area. 220 sq mi, approximately. 

Records available. April 1921 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 5,150 ft (by barometer). Prior to May 

87 1927, staff gage at site 175 ft downstream at datum 2.08 ft lower.

Average discharge. 24 years (1921-24, 1928-29, 1931-51), 16.5 cfs.

Extremes. Maximum discharge during year, 257 cfs Apr. 7 (gage height, 2.33 ft); no flow 

for long periods.

1921-51: Maximum discharge, 858 cfs Apr. 7, 1930 (gage height, 4.77 ft), no flow 

for long periods.

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

those below about 5 cfs, which are poor.

Cooperation.--Five field estimates of discharge furnished and water-stage recorder inspected by Water District No. 66.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

0.1 

.2 

.3

.9

0 

.1 

.3 

1.5 

4.7 

11

1.1 

1.3 

1.5 

1.9 

2.3

23

41

68

151

245

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

4.0

4.1

5.0

6.4

579

3.9

2.2

1.9

a. 5

al.O

al.5

a2.0

aO~.l

0

0

1.1

.6

.7

.6

.6

.8

.8

.8

1.2

1.4

1.5

3.7

*4.7

2.7

3.1

62.8

2.03

125

Nov.

8.0

172

4.7

5.0

6.4

5.9

5.0

6.9

1.0

0

0

al

a3

4.7

3.1

3.5

a4

a6

aS

a6

a5

a4

a3

al

al

a6

a8

a8

a8

5.9

-

138.3

4.61

274

Dec.

3.9

.4

a2

a5

a4

a4

a3

a3

a3

a5

a6

*7.6

573

4.6

5.6

5.9

5.6

5.6

5.6

4.3

4.5

4.5

4.5

3.0

1.9

1.9

1.9

1

1

1

1

115.6

3.73

229

Jan.

1

> 3

(»)

> 3

I ,.

I W

64.0

2.1

127

Feb.

1

1 '"

 10

(«)

4

(**)

_

-

164-0

5.9

325

Mar.

5

1 "'

5

J (**)

8

8

(**)

203

6.5

403

Apr.

15

30

60

167

195

235

2ST

183

160

110

69

54

66

76

48

36

35

37

38

30

*24

23

23

23

21

19

30

35

61

79

-

2,213

73.8

4,390

May

SB- 44

27

22

19

17

18

22

23

21

17

al9

a22

a20

a!8

a22

a27

a26

a25

a24

22

 19

a!7

al6

15

11

all

a!2

11

all

11

624

20.1

1,240

June

a!3

a!3

11

all

11

a!7

24

Zl

16

13

12

10

17

19

16

7.0

5.0

3.5

2.6

*2.2

1.5

271

4.3

6.2

4.5

4.1

5.6

4.7

2.9

2.1

-

282.3

9.41

560

July

1.5

T75

1.3

1.2

.2

0

0

0

0

0

0

.4

1.4

.1

0

0

0

0

0

fl

0

0

0

o

0

0

0

0

o

*i.i

*.8

9.5

0.31

19

Aug.

0

0

0

0

9.1

4.5

1.7

.8

.2

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

1.1

1.9

.2

0

0

0

0

19.5

0.63

39

Sent.

-

0

0

0

Calendar year 1950: Max 280 Mln 0 Mean 18.9 Ae-ft 13,70o

Water year 1950-51: Max 235 Mln 0 Mean 10.7 Ac-ft 7,730

* Discharge measurement made on this day.

** Field estimate made on this day.

a No gage-height record; discharge computed on basis of weather records, discharge measurements 

and field estimates, and records for Beaver Creek at Spencer and nearby streams.

Mote. Stage-discharge relation affected by Ice Dec. 21, 23, Dec. 28 to Apr. 3 (no gage-height 

record Jan. 17 to Mar. 10, Mar. 18, Mar. 22 to Apr. 1; discharge estimated on same basis as shown 

for footnote "a") .
MUD LAKE-LOST RIVER BASINS 83

Beaver Creek at Camas, Idaho

Location. Lat 44°01', long. 112°14 I , in NE£ sec. 21, T. 8 N., R. 36 E., on right bank 

a quarter of a mile northwest of Oregon Short Line Railroad station at Camas and threeeighths of a mile upstream from mouth.

Drainage area. 510 sq mi, approximately. 

Records available. April 1921 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 4,790 ft (by barometer). Prior to Dec. 

ZZ, 1949, staff gages at nearby sites at present datum.

Extremes. Maximum discharge during year, 135 cfs Apr. 8 (gage height, 2.97 ft); no flow 

I'or most of year.

1921-51: Maximum discharge observed, 163 cfs Apr. 7, 1930; no flow for long periods 

in each year; no flow for entire water years 1929, 1931-37, 1940.

Remarks. Records good except those below 10 cfs, which are fair. Flow affected by irri*- 

gation or diversions above Dubois, about 14 miles above station, and by heavy channel 

losses below Dubois.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

.9 

1.0 

1.2

0.3 

1.0 

2.1

5.6

1.4 

1.7 

2.0 

2.4 

2.9

83

128

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

(*)

0

0

0

Nov.

0

0

0

Dec.

(*)

0

0

0

Jan.

(*)

0

0

0

Feb.

0

0

0

Mar.

(*)

0

0

0

Apr.

0

0

0

13

66

101

124

127

no

83

54

28

25

31

27

11

4.6

0.5

0

0

*0

0

0

0

0

0

0

0

0

0

-

805.1

26.8

1,600

Calendar year 1950: Max 132 Min 0 Mean 4.88

May

(*)

0

0

0

June

(*)

-

0

0

0

July

0

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Ac-ft 3,540

Water year 1950-51: Max 127 Min 0 Mean 2.21 Ac-ft 1,600

Observation of no flow made on this day.
84 MUD LAKE-LOST RIVER BASINS

Medicine Lodge Creek at Ellis Ranch, near Argora, Idaho

Location.--Lat 44°17 I , long. 112°30', in sec. 7, T. UN., R. 34 E., on left bank 4 miles 

upstream from Middle Creek, 6|- miles southeast of Argora, and 17 miles northwest of 

Dubois.

Drainage area.--165 sq mi.

Records available.--October 1940 to September 1951.

Sage.-»Water-stage recorder. Altitude of gage is 5,710 ft (from topographic map of dam 

sites). Prior to Nov. 16, 1940, staff gage at site 0.2 mile upstream at different 

datum.

Average discharge.--10 years (1941-51), 45.3 cfs.

Extremes.--Maximum discharge during year, 65 cfs Mar. 18; maximum gage height, 2.43 ft 

Feb. 14, Mar. 18; minimum discharge, 10 cfs Apr. 17, 21 (gage height, 1.35 ft).

1940-51: Maximum discharge, 229 cfs June 9, 1944 (gage height, 4.23 ft), from 

rating curve extended above 120 cfs by logarithmic plotting; minimum, 9 cfs Dec. 12, 

1940, Dec. 11, 1949.

Remarks.--Records eood. Several diversions above and below station for irrigation.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.3 

1.5 

1.9 

2.4

8.5

17

37

64

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

2

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

38

38

38

38

37

36

36

36

36

36

36

36

35

32

28

28

28

29

2S

29

28

22

20

16

16

16

15

12

*12

13

14

862

27.8

1,710

Nov.

14

15

15

16

17

17

17

18

19

22

25

28

30

29

28

33

34

36 

35

34

34

34

36

36

36

36

36

36

36

36

-

83S

27.9

1,660

Dec.

36

34

39

38

33

30

39

42

39

40

39

39

*38

36

37

36

36

36

37

36

36

36

37

37

37

36

35

39

36

42

31

1,142

36.8

2,270

Jan.

23

20

22

22

19

17

14

14

15

16

17

18

21

24

31

36

38

40 

36

23

30

32

30

32

40

44

38

13

11 *12

13

762

24.6

1,510

Feb.

14

16

18

22

28

30

36

40

42

46

47

44

40

36

40

42

40

40

37

40

40

40

40

40

38

3S

38

38

-

-

-

1,010

36.1

2,000

Mar.

38

35

27

38

38

38

40

39

39

33

*32

36

40

39

38

36

36

34

38

38

40

39

36

38

38

38

38

36

38

38

40

1,151

37.1

2,280

Apr.

40

42

45

IS

44

42

38

33

30

28

22

20

19

17

16

15

12

tt

11

*12

13

14

14

14

16

16

22

44

35

-

741

24.7

1,470

May

M

38

38

42

41

42

55

54

52

50

50

54

54

51

49

48

48

48 

47

4S

50

*49

50

51

50

52

51

54

55

56

5i

1,520

49.0

3,010

June

57

56

54

51

51

51

54

52

52

51

51

53

55

49

49

50

49

49 

49

49

*48

49

51

48

48

48

46

46

44

44

-

1,504

50.1

2,980

July

44

44

44

42

42

42

42

42

42

44

48

44

42

41

40

40

40

40 

40

41

40

40

40

39

40

39

38

40

44

42

*40

1,286

41.5

2,550

Aug.

39

38

38

41

40

40

42

42

40

40

38

38

37

36

36

36

34

34 

34

34

34

38

40

38

37

36

36

36

*34

34

33.

1,153

37.2

2,290

Sept.

32

32

32

33

32

32

31

30

30

30

29

30

30

29

28

28

28

27 

28

28

30

30

28

28

27

27

27

27

26

26

-

875

29.2

1,740

Calendar year 1950: Max 89 Mln 12 Mean 41.4 Ac-ft 29,950

Water year 1950-51: Max 59 Mln 11 Mean 35.2 Ac-ft 25,470

Discharge measurement made on this day.
MUD LAKE-LOST RIVER BASINS 

Birch Creek near Reno, Idaho

85

Location. Lat 44°12', long. 112°57', in sec. 13, T. 10 N., R. 29 E., on left bank 200 ft 

west of State Highway 28, 2.6 miles south of the Lemhi-Clark county line, and 35 miles 

west of Dubois.

Drainage area. 320 sq mi, approximately.

Records available. September 1910 to June 1912 (published as "near Kaufman"), April 1921 

to January 1923, October 1950 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,240 ft (by barometer). Prior to Oct. 

T, 1950, staff gage at site half a mile downstream at different datum.

Extremes. Maximum discharge recorded during year, 99 cfs Mar. 11 (gage height, 1.84 ft); 

maximum gage height, 2.70 ft Jan. 31 (backwater from ice); minimum discharge observed, 

61 cfs Jan. 29, but may have been less during period of ice effect; minimum gage height, 

1.50 ft Mar. 16.

1910-12, 1921-23, 1950-51: Maximum discharge observed, 160 cfs Mar. 2, 1912 (gage 

height, 2.20 ft, site and datum then in use); minimum observed, that of Jan. 29, 1951.

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

which are fair. Small ranch diversions above stations.

Rating table, water year 1950-51, except periods of ice effect (gage

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

(Shifting-control method used Oct. 1-18)

1.5

1.6

1.7 85

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

76

76

75

74

74

73

*73

72

72

73

73

73

73

73

75

74

74

74

75

75

75

75

75

75

75

75

75

75

75

75

76

2,303

74.3

4,570

Nov.

76

75

75

76

76

75

75

75

74

b75

77

77

77

77

75

75

75

75

75

75

75

76

76

77

77

77

77

76

77

77

-

2,275

75.8

4,510

Dec.

77

76

77

77

b76

76

77

76

77

77

77

77

77

*79

79

79

79

79

79

79

79

79

79

79

79

78

78

79

78

78

78

2,414

77.9

4,790

Jan.

79

79

79

79

b78

b77

b77

77

77

77

78

78

78

78

78

77

77

78

77

77

78

78

77

77

78

78

78

b72

*b65

b65

b65

2,366

76.3

4,690

Feb.

68

70

74

78

80

82

83

84

85

85

84

83

82

81

80

80

80

80

80

80

80

80

80

80

80

80

80

80

-

-

-

2,239

80.0

4,440

Mar.

80

80

80

80

80

80

80

80

80

*8Z

81

81

81

80

80

80

b78

b77

78

78

80

78

77

77

77

78

77

77

77

77

78

2,449

79.0

4,860

Apr.

78

79

78

77

77

77

77

77

77

78

78

78

78

79

79

79

79

79

80

80

80

79

*79

80

80

80

81

82

84

82

-

2,371

79.0

4,700

May

81

81

81

80

80

80

81

81

81

81

81

81

81

81

80

80

80

79

79

79

79

79

*79

78

77

77

76

76

75

75

75

2,454

79.2

4,870

June

75

75

75

75

75

75

76

76

76

76

76

78

77

76

75

'74 75

74

74

74

*74

75

75

74

73_

73

73

73

73

73

-

2,243

74.8

4,450

July

74

74

74

74

74

74

74

74

74

76

76

76

76

75

74

74

74

74

74

74

74

74

75

75

75

75

76

78

78

*77

77

2,323

74.9

4,610

Aug.

78

77

78

78

IS

79

78

77

77

77

77

77

77

2i

76

76

76

77

77

76

77

77

77

78

77

77

77

77

77

*77

78

2,392

77.2

4,740

Sept.

78

78

78

77

77

77

77

77

77

77

77

77

77

77

77

77

77

78

78

78

78

78

78

78

78

78

78

78

78

78

-

2,326

77.5

4,610

Calendar year 1950: Max - Min - Mean - Ac-ft -

Water year 1950-51: Max 85 Kin 65 Mean 77.1 Ac-ft 55,840

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Note. No gage-height record Oct. 1, Feb. 1 to Mar. 9, Apr. 

weather records and records for stations on nearby streams.

6-16; discharge estimated on basis of
86 MUD LAKE-LOST RIVER BASINS

Little Lost River near Howe, Idaho

Location. Lat 43°53', long. 113°06', in sec. 3, T. 6 N., R. 28 E., on left bank a quarter 

or a mile upstream from diversion dam of Blaine County Investment Co., 6 miles northwest of Berenice, and 7 miles northwest of Howe.

Drainage area. 685 sq mi.

Records available. April 1921 to September 1951 (no winter records prior to 1948).

Gage. Water-stage recorder. Altitude of gage is 5,020 ft (by barometer). Prior to Sept. 

?, 1938, staff gage at site 120 ft downstream at datum 1.39 ft higher.

Extremes. Maximum discharge during year, 185 cfs July 29 (gage height, 3.73 ft); maximum 

gage height, 4.42 ft Feb. 7 (ice Jam); minimum discharge not determined, occurred 

during period of ice effect.

1921-51: Maximum discharge, about 450 cfs Aug. 11, 1936 (gage height, 3.1 ft, datum 

then in use, from floodmark), from rating curve extended above 100 cfs; maximum gage 

height observed, 6.50 ft during period Feb. 7 to Mar. 17, 1946, from floodmark (ice 

Jam); minimum observed, 4.1 cfs Dec. 12, 1940.

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 of about 11,900 

acres.

Cooperation. Water-stage recorder inspected by Water District No. 9.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

(Shifting-control method used Sept. 10-30)

2.3 

2.5 

2.8 

3.2 

3.6

22

37

67

113

167

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

76

77

To

*67

68

67

67

60

59

58

56

55

52

51

50

52

52

49

49

49

49

59

60

60

62

64

64

65

64

59

60

1,850

59.7

3,670

Nov.

63

65

65

65

65

62

58

48

38

35

40

42

44

*45

41

29

28

28

26

26

26

26

27

27

28

28

29

30

30

33

-

1,197

39.9

2,370

Dec.

34

b33

33

33

b33

b33

34

33

37

35

34

33

34

b33

34

33

33

33

33

*33

34

34

33

33

b32

b32

b33

34

33

b33

b30

1,032

33.3

2,050

Jan.

b25

b30

b33

b32

b30

b25

b20

b21

b22

b25

b28

b28

b28

29

30

31

31

b30

b28

*b!7

b21

b29

b29

29

55

31

30

b20

b!5

b!5

b!5

812

26.2

1,610

Feb.

b!7

b!9

b23

b27

b30

b37

b35

b38

42

44

45

42

38

35

38

39

38

37

35

37

37

37

37

37

35

35

35

35

-

-

-

984

35.1

1,950

Mar.

35

30

30

*44

35

b36

35

35

35

b35

b35

b36

36

36

36

35

b35

b35

b36

36

38

38

39

41

42

43

45

45

45

49

50

1,181

38.1

2,340

Apr.

51

72

72

78

84

79

86

90

89

88

78

 78

80

89

96

95

95

96

95

96

99

99

97

96

97

96

100

103

120

117

-

2,711

90.4

5,380

May

109

100

95

91

95

106

120

126

127

123

125

129

135

134

126

*121

123

132

135

136

134

134

138

142

145

146

146

150

152

152

149

3,976

128

7,890

June

152

153

156

T53

140

136

135

126

116

108

103

112

122

123

129

135

142

*142

147

145

145

143

146

140

129

123

121

114

109

107

-

3,952

132

7,840

July

107

108

106

102

100

101

97

95

97

99

117

113

101

94

91

93

85

*86

82

88

90

88

82

81

81

81

80

88

109

99

94

2,935

94.7

5,820

Aug.

91

90

87

94

106

107

109

107

105

97

91

86

85

84

80

75

*70

67

66

68

70

80

82

91

89

82

80

82

82

86

86

2,675

86.3

5,310

Sept.

85

82

84

82

82

81

82

80

79

80

78

81

84

77

71

72

70

69

76

76

75

75

71

67

67

67

70

69

68

66

2,266

75.5

4,490

Calendar year 1950 : Max 160 Mln - Mean 66.4 Ac-ft 48,110

Water year 1950-51 : Max 156 Mln 15 Mean 70.1 Ac-ft 50,720

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note. No gage-height record Nov. 5-13, Feb. 9 to Mar. 3; discharge estimated on basis of weather 

records, records for Medicine Lodge Creek near Argora, and records for stations on nearby streams.
MUD LAKE-LOST RIVER BASINS 87

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

Location.--La t 43°53', long: 113°05',.in NW^NW^- sec. 11, T. 6 N., R. 28 E. , on left end 

of weir, 900 ft downstream from headgates and 7 miles northwest of Howe.

Records available. April 1924 to September 1951 (prior to 1939, irrigation seasons only).

Gage.--Staff gage and Cippoletti weir; gage read once daily. Prior to June 25, 1927, 

staff gage at site 700 ft upstream at different datum. June 26, 1927, to May 6, 1945, 

staff gage at site 180 ft upstream at present datum.

Extremes.--1924-51: Maximum daily discharge, 87 cfs May 24, 25, 1928; no flow during 

long periods each year.

Remark:?. Records good. Canal diverts water from Little Lost River in sec. 2, T. 6 N., 

R. £8 E., for irrigation of lands in project of Blaine County Investment Co.

Cooperation. Gage readings furnished by Water District No. 9.

Rating tables, water year 1950-51 (gage height, In feet, and discharge, 

in cubic feet per second)

0.99

1.0 .1

1.1 1.6

1.2 4.0

Oct. 1 to Apr. 3 

0 1.3

1.4

1.5

7.2

11

16

Apr. 4 to Sept. 30

0.99 0 1.4 9.5

1.0 .1 1.5 14

1.1 1.6 1.7 26

1.2 3.1 1.9 40

1.3 5.9 2.2 67

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

16

TT

*8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

7.7

6.6

6.6

6.6

6.6

6.6

6.6

6.6

S.6

6.6

8.2

10

12

13

13

13

L2

11

8.4

5.9

5.6

272.6

13.79

541

Nov.

5.6

6.2

6.6

6.6

8.6

9.9

5.0

0

0

0

0

0

0

*0

0

0

0

0

0

0

O

0

0

0

0

0

o

0

0

0

0

48.5

1.62

962

Dec.

(*)

0

0

0

Jan.

(*)

0

O

o

Feb.

0

0

0

Mar.

(*)

0

0

O

Apr.

0

0

0

7.9

16

23

28

33

36

34

29

*27

26

23

22

25

26

26

26

22

19

17

16

12

7.8

6.6

6.4

6.3

11

16

-

548.0

18.3

1,090

May

14

8.9

6.6

6.2

5.9

5.9

9.6

17

21

21

21

23

29

33

36

28

*24

28

33

41

43

43

45

51

54

55

57

57

58

62

65_

1,002.1

32.3

1,990

June

66

66

66

64

56

48

44

37

25

18

16

16

20

25

30

35

41

*44

47

50

50

52

55

57

48

44

44

35

28

26

-

1,253

41.8

2,490

July

26

26

22

19

17

16

16

13

12

12

21

28

23

16

14

14

14

*14

14

14

14

14

13

11

11

15

18

18

20

24

26

535

17.3

1,060

Aug.

24

23

22

23

30

32

32

32

32

30

26

21

17

16

16

12

*9.5

8.4

.0

.2

.3

.3

.6

503.9

16.3

999

Sept.

8.4

8.8

8.5

8.1

8.1

8.1

8.1

7.9

'.7

.7

.7

.7

.7

1O

13

14

18

21

22

22

22

22

19

18

18

-

362.0

12.1

718

Calendar year 1950: Max 60 Mln 0 Mean 10.2 Ac-i't 7,360

Water ye.ir 1950-51: Max 66 Min 0 Mean 12.4 Ac-ft 8,980

discharge measurement made on this day.
MUD LAKE-LOST RIVER BASINS

Big Lost River at Wild Horse, near Chilly, Idaho

Location.--Lat 43°56', long. 114°07', in sec. 17, T. 7 N., R. 20 E., on right bank 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 sq mi.

Records available. March 1944 to September 1951.

Gage. Water-stage recorder.

Average discharge. 7 years, 98.4 cfs.

Extremes. Maximum discharge during year, 807 cfs May 28 (gage height, 4.74 fth minimum, 8.0 cfs Mar. 23 (gage height, 1.11 ft).

1944-51: Maximum discharge, 876 cfs June 9, 1948 (gage height, 4.99 ft); minimum 

recorded, that of Mar. 23, 1951.

Remarks. Records good except those for period of no gage-height record, which are fair.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.2 

1.4 

1.7 

2.0 

2.5

11

20

40

66

129

3.0 

3.5 

4.0 

4.7

227

362

530

800

Discharge, in cubic feet per second, water year October 195O 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

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

44

43

43

43

44

46

43

43

41

40

40

39

38

38

42

42

43

43

42

41

40

40

40

39

44

48

51

48

64

69

62

1,383

44.6

0.391

0.45

2,740

Nov.

56

54

52

52

52

51

50

50

40

38

42

44

*41

43

37

39

42

44

42

42

42

40

4O

38

40

40

38

35

36

39

-

1,299

43.3

0.380

0.42

2,580

Dec.

36

30

34

37

29

32

36

34

32

33

*34

34

25

26

32

30

30

30

32

32

28

25

30

3O

30

25

25

26

30

30

26

943

30.4

0.267

0.31

1,870

Jan.

25

26

28

27

25

22

25

29

31

32

33.

30

29

30

30

31

31

29

27

23

26

30

29

30

29

29

27

25

24

26

27

865

27.9

0.245

0'.28

1,720

Feb.

28

28

27

26

26

25

26

*27

28

27

23

23

25

25

22

28

24

25

26

25

25

25

28

22

23

18

-

-

-

711

25.4

0.223

0.23

1,410

Mar.

15

20

20

20

20

20

20

20

18

18

18

18

18

18

17

13

13

13

13

13

14

13

11

13

14

16

16

13

15

16

*24

510

16.5

0.145

0.17

1,010

Apr.

25

30

40

48

59

68

7B

81

89

87

89

1O6

137

*172

177

173

188

203

210

203

181

160

150

145

134

129

131

148

148

134

-

3,723

124

1.O9

1.21

7,380

May.

123

117

TT7

126

143

190

250

302

292

313

374

374

330

281

252

275

353

*429

460

457

460

506

597

641

601

569

666

780

716

597

509

12,200

394

3.46

3.98

24,2OO

June

426

359

322

294

294

281

262

242

225

225

255

316

387

450

573

688

*670

621

562

554

537

5O9

429

39Q

390

396

387

400

396

374

-

12,214

407

3.57

3.98

24,230

July

387

381

387

403

374

339

325

319

3O5

325

292

247

234

257

268

*262

262

260

26O

247

222

196

181

177

173

161

166

196

210

183

168

8,170

264

2.32

2.67

16,200

Aug.

157

150

168

270

199

172

157

140

131

122

114

108

10T

95

91

87

*84

83

83

84

93

104

99

102

89

81

75

72

72

68

65

3,516

113

0.991

1.15

6,970

Sept.

63

62

59

57

55

54

53

52

51

50

49

50

49

48

46

44

44

43

42

40

41

40

40

40

38

38

38

38

37

38

-

1,399

46.6

0.4O9

O.46

2,770

Calendar year 1950: Max 503 Min 11 Mean 94.9 Cfsm 0.832 In. 11.30 Ae-ft 68,680

Water year 1950-51: 1950-51: Max 780 Min 11 Mean 129 Cfsm 1.13 In. 15.315 Ac-fte 93,0805

Peak discharge (base; 500 efs).--Mav 11 (12 p.m.) 595 cfs (3.65 ft); May 28 (1O a.m.) 807 cfs 

(4.74 ft); June 17 (4 a.m.) 720 cfs (4.50 ft); Aug. 4 (2:30 a.m.) 355 cfs (5.49 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Jan. 6 to Feb. 9; discharge estimated on basis of weather record 

and records for nearby streams.
MUD LAKE-LOST RIVER BASINS 89

Big Lost River at Howell Ranch, near Chilly, Idaho

Location (revised). Lat 44°00', long. 114°02', in sec. 30, T. 8 N., R. 21 E., on left

bank at Howell Ranch, H miles downstream from Burnt Creek, 6 miles downstream from

East Pork, 9 miles southwest of Chilly, and 21 miles northwest of Mackay.

Drainage area. 448 sq mi.

Records available. April 1904 to November 1914, May 1920 to September 1951 (no winter 

records prior to 1949).

Gage. Water-stage recorder. Altitude of gage is 6,610 ft (from topographic map). Prior 

To Apr. 20, 1906, staff gage at site H miles downstream at different datum. Apr. 20, 

1906, to June 6, 1312, staff gage at site 100 ft downstream at different datum. June 

7, 1912, to Nov. 14, 1914, staff gage at present site at datum 2.0? ft lower. May 11 

to June 16, 1920, staff gage at present site and datum.

Extremes.--Maximum discharge during year, 2,210 cfs May 28 (gage height, 4.24 ft); minimum 

not determined, probably occurred during period of ice effect.

1S04-14, 1920-51: Maximum discharge, 3,500 cfs June 12, 1921 (gage height, 5.94 ft); 

miniirum observed, 19 cfs (discharge measurement) Dec. 12, 1939.

Remarks.--Records good except those for period of ice effect, which are poor. No regulation. Several small diversions above station. Hammerly ditch (capacity, about 20 cfs) 

diverts a quarter of a mile downstream.

Cooperation. Water-stage recorder inspected by employees of Water District No. 27.

Rating table, water year 1950-51, except period of Ice effect (gage 

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

(Shifting-control method used Oct. 1 to Nov. 9, Apr. 5-22)

1.0 

1.3 

1.6 

2.0

121

197

302

478

2.5 

3.0 

3.5 

4.1

763

1,120

1,550

2,140

Discharge, in cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Oct.

*L19

117

L15

113

110

115

108

108

106

102

100

100

100

98

113

119

117

115

113

110

108

106

104

102

113

119

128

123

149

175

162

3,587

116

7,110

Nov.

137

130

126

123

123

123

121

121

102

100

110

110

*105

110

95

100

105

. 110

-

3,371

112

6,690

Dec.

> 120

(*)

' 110

3,560

115

7,060

Jan.

. 100

(*)

3,100

100

6,150

Feb.

100

. 90

J

-

-

2,670

95.4

5,300

Mar.

75

65

*90

2,190

70.6

4,340

Apr.

105

125

175

200

243

257

287

275

294

272

240

275

368

*488

478

421

464

509

529

519

464

398

381

368

342

330

338

390

394

351

-

10,280

343

20,390

May

326

310

298

318

368

459

618

755

722

762

884

947

795

755

672

722

898

* ,140

,260

,270

,290

,400

,600

,720

,620

,570

,810

2.120

2,000

1,660

1,380

32,449

1,047

64,360

June

1,170

982

856

768

736

703

660

666

567

551

600

762

989

1,190

1,510

1.910

*1,860

1,710

1,570

1,500

1,420

1,330

1,090

940

968

1,000

982

1,020

1,010

926

-

31,946

1,065

63,360

July

989

982

982

1,040

961

849

822

808

768

815

7 SI

672

624

678

703

*684

684

684

697

660

600

524

498

483

483

454

449

551

556

504

459

21,444

692

42,530

Aug.

430

416

435

968

635

545

468

412

376

355

330

306

291

275

257

243

240

229

*226

236

260

294

287

359

302

254

232

216

207

203

194

10,481

338

20,790

Sept.

189

186

180

175

169

166

166

162

156

154

149

149

149

144

139

137

135

135

132

128

130

130

130

128

126

126

123

126

123

121

-

4,363

145

8,650

Calendar year 1950 : Max 1,46O Min - Mean 269 Ac-ft 194,600

Water yea.r 1950-51 lasu-bi : Max 2,120 i;,li:o Min - Mean 355 Ac-ft 256,700 256,700

Peak discharge (base. 900 efs). May 12 (5 a.m.) 968 cfs (2.86 ft); May 28 (9 a.m.) 2,210 cfs (4.24 

ft); June 16 (9:30 a.m.) 2,100 cfs (4.13 ft); Aug. 4 (6:3O a.m.) 1,260 cfs (3.24 ft).

* Discharge measurement made on this day.

Note_.--Stage-discharge relation affected by ice Nov. 10 to Apr. 4 (no gage-height record Nov. 15 to 

Mar. 3O; discharge estimated on basis of 2 discharge measurements, staff-gage readings Nov. 18, and 

Dec. 12, records for station at Wild Horse and nearby streams, and weather records).
90 MUD LAKE-LOST RIVER BASINS

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

Location. Lat 43°59', long. 113°45', in sec. 32, T. 8 N., R. 23 E., on right bank above 

flow line of reservoir, 3 miles upstream from Mackay Dam and 7i miles northwest of 

Mackay.

Records available. May 1919 to September 1951.

Gage. Water-stage recorder and concrete control. Datum of gage is 6,061.80 ft above mean 

sea level (unadjusted). Prior to Sept. 22, 1934, at site 550 ft upstream at different 

datum. Staff gage on Mackay Reservoir is used as an auxiliary gage during periods of 

backwater from reservoir.

Average discharge.--32 years, 66.5 cfs.

Extremes Maximum discharge during year, 730 cfs June 17 (gage height, 4.60 ft); maximum 

gage height, 4.90 ft May 29 (backwater from Mackay Reservoir); minimum discharge recorded, 3 cfs Oct. 18-20 (gage height, 1.21 ft).

1919-51: Maximum discharge, 1,320 cfs June 7, 1938; maximum gage height, 5.02 ft 

July 1, 1944; no flow during long periods in many years.

Remarks.--Records good except those for periods of backwater, which are fair, and those 

below 10 cfs, 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 (see p. 95).

Cooperation. Water-stage recorder graph and one discharge measurement furnished by Water 

District No. 27.

Rating table, water year 1950-51, except periods of backwater from Mackay 

Reservoir (gage height, in feet, and discharge, in cubic feet per second) 

(Shifting-control method used Dec. 14-26, June 11-17, July 1-5)

1.1 

1.3 

1.5 

1.7

2.0 

2.5 

3.0 

3.5

148

248

Discharge, in cubic feet per second, water year October 1950 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

25

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

11

*11

10

10

10

10

10

10

10

10

10

6

5

5

5

6

5

4

3

3

4

4

5

6

9

9

9

7

6

6

6

225

7.3

446

Nov.

6

6

6

5

5

6

5

5

5

1

4

4

*6

10

9

9

9

10

10

9

9

9

S

8

8

8

8

7

7

8

-

213

7.1

422

Dec.

8.

*

6

6

6

6

6

6

6

6

6

6

6

6

200

6.4

397

Jan.

6

S

6

6

6

1 .

i

5

*5

S

166

5.4

329

Feb.

5

-

_

-

140

5

278

Mar.

5

*5

5

5

5

5

5

5

5

5

5

6

6

6

6

6

6

7

7

7

8

8

9

9

9

9

9

195

6.2

385

Apr.

9

9

9

9

9

9

9

9

10

16

18

17

*21

45

55

55

68

96

107

116

111

98

94

92

95

88

88

88

99

95

-

1,658

54.6

3,250

May

90

83

79

69

j>5

66

93

133

155

164

184

209

226

227

208

198

*219

*277

309

585

396

409

495

587

605

568

589

685

658

628

645

9,700

313

19,240

June

644

544

471

403

365

354

*545

520

296

277

255

250

290

355

426

595

693

*678

622

570

550

556

488

406

585

588

388

403

403

592

15,068

456

25,920

July

585

591

391

408

408

587

568

556

346

371

402

577

549

507

500

501

*294

284

286

290

275

248

228

211

201

195

191

218

255

241

228

9,488

506

18,820

Aug.

215

203

207

523

552

504

295

272

272

272

255

221

209

189

162

150

154

85

78

74

79

90

92

92

85

79

74

72

68

.§!

5,159

166

10,230

Sept.

65

62

59

55

54

51

50

45

42

40

59

38

37

55

54

52

51

32

51

50

50

29

28

28

26

26

25

 24 24

24

1,124

57.5

2,250

Calendar year 1950: Max 508 Min 0 Mean 57.7 Ac-ft 41,810

Water year 1950-51: Max 693 Mln 3 Mean 113 Ac-ft 81,940

* Discharge measurement made on this day.

Note. No gage-height record Jan. 16-18, Jan. 20 to Mar. 5; discharge estimated on basis of weather 

records, records for nearby streams, and records for adjacent periods. Stage-discharge relation affected by backwater from Mackay Reservoir Apr. 19 to June 10, June 18-50, July 6-21, Aug. 11-15.
MUD LAKE-LOST RIVER BASINS 

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

91

Location. Lat 43°58', long. 113°45>, in sec. 5, T. 7 N., R. 23 E., on left bank above 

flow line of reservoir, 3 miles upstream from Mackay Dam and 7-| miles northwest of 

Mackay.

Records a callable. May 1919 to September 1951.

Gage. Water-stage recorder. Datum of gage is 6,062.38 ft above mean sea level (unadjusted). Prior to May 26, 1919, staff gage and May 26, 1919, to May 13, 1938, waterstage recorder at site 200 ft upstream at different datums. Staff gage on Mackay Reservoir is used as an auxiliary gage during periods of backwater from reservoir.

Average discharge. 32 years, 59.3 cfs.

Extremes.--Maximum discharge during year, 389 cfs May 29 (gage height, 4.46 ft, backwater 

from Mackay Reservoir); minimum, 21 cfs Jan. 29 (gage height, 1.98 ft).

1919-51: Maximum discharge, 1,200 cfs (estimated) sometime during period June 5-16, 

1921 (gage height, 4.45 ft, site and datum then in use); minimum. 9 cfs May 22, 26, 

1935.

Remarks. Records good except those for periods of backwater from Mackay Reservoir, which 

are fair. Diversions above station for irrigation. The sum of the combined discharge 

of east and west channels of Big Lost River and the combined discharge of east and 

west channels of Warm Spring Creek, near Mackay, represents practically the entire 

surface flow of Big Lost River which enters Mackay Reservoir (see p. 95).

Cooperation. Water-stage recorder graph and one discharge measurement furnished by Water 

District No. 27.

Rating table, water year 1950-51, except periods of backwater 

from Mackay Reservoir (gage height, in feet, and discharge, in cubic feet«per second)

2.0 

2.2 

2.5 92

3.0 

3.5 

3.9

169

307

409

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

.59

*59

39

39

39

39

39

39

39

39

39

39

39

40

41

41

41

41

41

41

41

41

41

41

41

40

40

40

40

40

40

1,238

39.9

2,460

Nov.

40

40

40

40

40

40

40

40

40

40

40

40

*40

39

38

38

38

38

38

38

38

38

38

38

38

38

38

38

38

51-

1,165

38.8

2,310

Dec.

36

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

36

*36

36

36

36

35

35

35

35

35

35

34

34

35

1,089

35.1

2,160

Jan.

35

34

34

34

32

32

32

32

32

32

32

32

32

32

32

32

32

32

*32

32

32

32

32

32

32

32

31

31

26

29

28

986

31.8

1,960

Feb.

29

29

29

30

30

30

30

30

30

30

30

30

30

31

30

30

30

31

31

31

31

31

30

30

30

30

30

30

-

-

-

843

30.1

1,670

Mar.

30

30

30

30

30

*30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

31

32

31

31

31

31

31

30

30

29

29

936

30.2

1,860

Apr.

30

30

30

31

31

31

32

32

32

32

32

34

*34

34

43

53

58

58

62

65

67

65

61

62

61

59

59

61

62

62

-

1,403

46.8

2,780

May

59

54

54

48

±1

48

58

72

87

84

92

112

126

121

109

101

*107

129

166

203

218

219

252

309

326

304

318

356

386

353

322

5,240

169

10,390

June

280

237

194

164

154

136

131

120

*107

101

2i

96

116

142

187

275

347

*340

302

281

273

273

258

212

183

174

176

180

185

181

-

5,899

197

11,700

July

178

176

174

176

178

164

152

140

131

148

162

142

119

109

113

118

»118

115

122

122

112

99

90

87

82

78

80

96

120

114

106

3,921

126

7,780

Aug.

99

92

97

158

185

158

133

114

96

80

73

61

62

57

64

59

59

*53

53

56

56

59

64

65

69

64

59

56

53

53

53

2,460

79.4

4,880

Sept.

52

50

48

48

46

44

44

43

44

43

41

43

43

43

40

40

39

39

39

40

40

40

40

40

40

40

40

41

41

41

"

1,272

42.4

2,520

Calendar year 1950: Max 239 Min 23 Mean 54.4 Ac-ft 39,370

Water year? 1950-51: Max 386 Min 26 Mean 72.5 Ac-ft 52,470

* Discharge measurement made on this day.

Note. 13tage-discharge relation affected by backwater from Mackay Reservoir May 12 to June 9, June 

18-29, July 12-20, Aug. 12-14.
92 MJD LAKE-LOST RIVER BASINS

mblned discharge, in cubic feet per second, 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 1950 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

Total

Mean

Ac- ft

Oct.

184

182

177

177

180

180

183

183

182

181

179

172

173

177

178

180

180

176

176

177

178

178

178

179

184

181

183

178

177

179

181

5,553

179

11,010

Nov.

179

177

177

178

179

177

179

179

178

176

179

179

181

T8T

177

177

176

176

175

173

174

173

173

174

174

173

175

172

172

ill

5,284

176

10,480

Dec.

173

170

170

170

169

169

172

170

170

171

JJ6

174

176

173

175

175

173

174

174

174

173

173

172

170

169

168

168

167

165

167

169

5,309

171

10,530

Jan.

166

165

165

165

163

164

163

165

163

162

162

160

158

157

157

157

157

159

159

159

159

156

157

156

158

157

155

154

146

156

156

4,938

159

9,790

Feb.

157

156

152

151

150

149

150

147

147

150

151

151

149

150

151

151

151

150

149

150

150

152

151

151

151

151

149

149

-

-

-

4,216

151

8,360

Mar.

151

151

149

149

152

151

152

153

152

150

152

153

150

150

148

149

149

149

149

150

159

160

153

159

166

166

160

155

157

156

157

4,763

154

9,450

Apr.

159

159

159

161

160

159

159

155

156

160

161

163

166

189

E13

234

252

275

293

307

304

268

274

273

270

262

260

264

280

274

"

6,589

220

13,070

May

265

245

237

216

209

215

264

329

376

363

419

476

527

519

480

453

462

584

663

831

872

699

1,060

1,260

1,330

1,260

1,310

1,460

1,500

1,410

1,340

21,934

706

43,510

June

1,250

1,060

915

769

724

690

675

620

564

529

495

500

576

672

644

1,160

1,560

1,360

1,260

1,180

1,150

1,130

1,060

667

803

792

791

609

615

792

-

26,274

876

52,110

July

781

765

777

600

602

756

714

662

657

720

782

716

646

590

596

603

595

561

590

592

554

505

470

449

433

420

426

491

571

544

516

19,146

616

37,960

Aug.

490

466

462

718

770

703

645

593

562

529

498

446

430

398

369

347

325

292

267

265

262

270

292

305

305

268

275

266

258

257

257

12,630

407

25,050

Sept.

253

246

239

232

226

216

216

207

207

203

202

205

205

208

200

200

196

197

190

185

162

183

180

160

176

176

174

174

174

173

-

6,011

200

11,920

Calendar year 1950 : Max 1,010 Mln 95 Mean 240 Ac-x't 173,700

Mater year 1950-51 : Max 1,500 Mln 146 Mean 336 Ao-ft 243,300
MUD LAKE-LOST RIVER BASINS 93

Warm Spring Creek (east channel) near Mackay, Idaho

Location. Lat 43°58 I , long. 113°45', in NE£ sec. 5, T. 7 N., R. 23 E., on left bank 700 

ft upstream from confluence with west channel and 7-j miles northwest of Mackay.

Records available.--May 1919 to September 1951.

Gage.--Mater-stage recorder. Altitude of gage is 6,070 ft (from topographic map). Prior 

to May 3, 1920, staff gage 100 ft downstream at different datura. May 3, 1920, to Dec. 

2, 1938, staff gage 200 ft downstream at datura 0.26 ft lower.

Average discharge. 32 years, 29.4 cfs.

Extremes.--Maximum discharge during year, 180 cfs May 28 (gage height, 3.68 ft); minimum, 

ST^Ts Jan. 29 (gage height, 1.86 ft).

1919-51: Maximum discharge observed, 225 cfs June 15, 1922 (gage height, 3.24 ft, 

site and datum then in use); minimum, 9 cfs May 8, 9, 13, 14, 1919, May 18-21, 1920.

Remarks.--Records good. Practically all natural flow above station diverted during irrigation season. Discharge during summer represents return water from irrigation. The 

sum of the combined discharge of east and west channels of Warm Spring Creek and the 

combined discharge of east and west channels of Big Lost River, near Mackay, represents 

practically the entire surface flow of Big Lost River which enters Mackay Reservoir 

(see p. 95).

Cooperation. Water-stage recorder graph and one discharge measurement furnished by Water 

District No. 27.

Rating table, water year 1950-51 (gage height, In feet,

and discharge, in cubic feet per second) 

(Shifting-control method used May 13 to Sept. 30)

1.8

3.0

3.1

Discharge, In cubic feet per second, water year October. 1950 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

Total

Mean

Ac- ft

Oct.

40

*39

38

38

39

39

40

40

39

38

37

37

37

38

39

39

39

37

38

40

40

40

39

39

41

40

42

41

41

41

42

1,217

39.3

2,410

Nov.

41

41

41

41

42

41

42

42

41

40

41

41

*40

39

38

38

37

38

38

38

38

37

37

36

36

35

36

35

35

35

-

1,160

38.7

2,300

Dec.

35

35

35

35

35

35

36

36

36

36

42

43

42

42

42

42

42

42

*42

42

39

39

39

39

38

37

37

36

33

35

35

1,182

38.1

2,340

Jan.

32

32

32

32

32

33

32

32

32

32

32

32

31

30

30

31

31

32

*32

32

32

31

31

30

32

31

31

30

28

30

30

970

31.3

1,920

Feb.

29

29

28

28

28

28

28

28

28

29

30

30

30

30

30

30

30

30

29

30

30

30

30

30

30

30

30

30

-

-

822

29.4

1,630

Mar.

30

30

30

30

30

*30

30

31

31

31

31

32

31

31

30

30

30

30

30

30

32

32

31

32

3_6

36

33

32

32

33

32

969

31.3

1,920

Apr.

32

32

32

32

32

32

32

31

31

31

30

31

*30

30

33

38

38

37

38

11

39

39

37

36

35

35

35

35

37

37

-

1,026

34.2

2,040

May

36

32

31

29

28

30

36

41

44

45

47

51

58

57

53

49

*50

59

72

88

93

97

115

151

155

149

156

175

173

154

133

2,487

80.2

4,930

June

113

98

85

74

67

64

64

56

*49

46

44

46

53

64

77

104

130

*128

117

110

106

104

97

80

71

71

71

72

73

70

-

2,404

80.1

4,770

July

70

75

69

70

70

65

60

56

54

63

70

60

52

49

53

52

*52

52

52

52

50

46

44

43

43

42

44

52

62

60

57

1,734

55.9

3,440

Aug.

56

52

55

81

M

82

71

66

60

53

51

48

46

44

42

40

37

*35

35

36

37

37

39

43

42

40

39

38

37

37

37

1,505

48.5

2,990

Sept.

38

37

36

35

32

32

32

30

31

30

30

31

31

32

30

32

32

32

30

28

28

28

28

28

28

27

26

26

26

26

-

912

30.4

1,810

Calendar year 1950: Max 101 Mln 20 Mean 38.6 Ac-ft 27,940

Water year 1950-51: Max 175 Mln 26 Mean 44.9 Ac-ft 3.2 ? 500

Discharge measurement made on this day.
94 MUD LAKE-LOST RIVER BASINS

Warm Spring Creek (west channel) near Mackay, Idaho

Location. Lat 43°58', long. 113°45', in NE£ sec. 5, T. 7 N., R. 23 E., on right bank 500 

ft upstream from confluence with east channel and 7| miles northwest of Mackay.

Records available.--May 1919 to September 1951.

gage.--Water-stage recorder. Altitude of gage is 6,070 ft (from topographic map). Prior 

to May 4, 1920, water-stage recorder at same site at datum 0.54 ft lower. May 4, 1920, 

to Dec. 2, 1938, water-stage recorder at same site at datum 0.46 ft higher than present 

datum.

Average discharge.--32 years, 92.6 cfs.

Extremes.--Maximum discharge during year, 287 cfs May 29 (gage height, 3.02 ft); minimum, 

BTTFs May 4-6 (gage height, 1.25 ft).

1919-51: Maximum discharge, 600 cfs (estimated) Aug. 11, 1936 (gage height, 4.42 

ft, datum then in use. from floodmark); minimum, 49 cfs Apr. 27, 1935 (gage height, 0.62 

ft, datum then in use).

Remarks. Records good. Plow 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 (see 

p. 95).

Cooperation.--Water-stage recorder graph and one discharge measurement furnished by Water 

District No. 27.

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used July 10-2?)

1.2 

1.5 

2.O 

2.5 

3.0

64

100

160

225

290

Discharge, in cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

94

*93

9O

90

92

92

94

94

94

94

93

90

92

94

93

94

95

94

94

93

93

93

93

93

93

92

92

90

90

92

93

2,873

92.7

5,700

Nov.

92

90

90

92

92

9O

92

92

92

92

94

94

*95

93

92

92

92

90

89

88

89

89

90

92

92

92

93

92

92

92

-

2,746

91.5

5,450

Dec.

94

93

93

93

92

92

94

92

92

93

92

89

92

90

92

92

90

90

*90

90

92

92

92

90

90

90

90

90

92

92

93

2,838

91.5

5,630

Jan.

93

94

93

93

93

93

93

 93 95

92

92

90

90

90

90

89

89

90

*90

90

90

90

89

89

89

89

88

88

87

92

93

2,816

90.8

5,590

Feb.

94

93

90

88

87

86

87

84

84

86

86

86

84

84

86

86

86

84

84

84

84

86

86

86

86

86

84

84

_

-

2,411

86.1

4,780

Mar.

86

86

84

84

87

*86

87

87

86

84

86

86

84

84

83

83

83

83

83

84

90

89

84

89

93

93

87

84

86

87

87

2,665

86.0

5,290

Apr.

88

88

88

89

88

87

86

83

83

81

81

81

*81

82

84

88

88

84

86

87

87

86

82

83

81

80

78

8C

82

8C

-

2.52Z

84.1

5,OOC

May

80

76

73

70

.§!

71

77

83

90

90

96

104

117

114

110

105

*1O6

119

136

155

165

174

2OO

230

243

238

244

269

285

T72

241

4,502

145

8,930

June

209

186

165

148

138

136

135

124

*112

105

102

108

119

131

154

189

213

*217

216

216

217

220

215

189

166

159

156

154

154

149

-

4,902

163

9,720

July

148

148

143

146

146

140

134

130

126

138

148

137

128

125

130

132

*131

130

130

128

119

112

108

108

107

105

111

125

136

129

125

4,003

129

7,940

Aug.

122

119

123

156

164

159

146

141

134

124

119

116

113

108

101

98

95

*93 94

95

95

95

99

105

102

99

98

98

96

99

100

3,506

113

6,950

Sept.

~99 100

96

94

94

89

90

89

9O

90

92

93

94

98

96

96

96

94

90

87

84

86

84

84

84

83

83

83

83

82

2,703

90.1

5,360

Calendar year 1950t Max 170 Min 52 Mean 89.2 Ac-ft 64,580

Water year 1950-51- Max 285 Min 69 Mean 105 Ac-ft 76,340

Discharge measurement made on this day.
MUD LAKE-LOST RIVER BASINS 95

Maokay Reservoir near Mackay, Idaho

Location. Lat 43°57', long. 113°40', in sec. 12, T. 7 N., R. 23 E. , on headgate tower of

 dam on Big Lost River and 4 miles northwest of Maokay.

Records available. January 1919 to September 1951.

Gage.--Staff gage read once daily. Datum of gage is 6,000 ft above mean sea level, Utah

 Construction Co. datum, or about 6,000.5 ft above mean sea level, datum of 1929.

Extremes.--Maximum contents observed during year, 42,390 acre-ft May 30 (gage height,

 fjt).04 ft); minimum observed, 5,510 acre-ft Oct. 1 (gage height, 24.00 ft).

1919-51- Maximum contents observed, that of May 30, 1951; no available contents 

during periods in 1919, 1920, 1924, 1926, 1929, 1931-35; minimum gage height observed, 

6.3 ft Aug. 5, 1934.

Remarks. Reservoir is formed by earth- and rock-fill dam, which was reconstructed in

 T9T7-18; storage impounded by original dam not recorded. Capacity is 38,400 acre-ft 

between gage heights 7.0 ft (bottom of outlet tunnel) and 62.0 ft (crest of spillway). 

Dead storage reported to be about 125 acre-ft. Water is used for irrigation of about 

33,000 acres in Big Lost River irrigation district. About 9,000 acres irrigated from 

Big Lost River and tributaries above reservoir. 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 1950 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.

5,740

6,010

6,280

6,620

6,920

7,240

7,480

7,800

8,080

8,390

8,680

8,980

9,260

9,580

9,890

10,170

10,430

10,600

10,930

11,230

11,500

11,690

11,940

12,220

12,510

12,800

13,060

13,340

13,580

13,800

14,010

Nov.

14,260

14,570

14,800

14,970

15,130

15,440

15,670

15,790

15,990

16,280

16,580

16,940

17,150

17,340

17,490

17,760

18,020

18,240

18,560

18,720

18,830

19,100

19,350

19,580

19,850

20,050

20,250

20,450

20,600

20,780

-

Dec.

20,960

21,150

21,360

21,520

21,810

22,100

22,300

22,480

22,680

22,880

23,040

23,260

23,590

23,860

24,040

24,290

24,540

24,710

24,910

25,070

25,260

25,460

25,630

25,830

26,020

26,170

26,330

26,510

26,680

26,880

27,080

Jan.

27,220

27,370

27,540

27,710

27,870

28,030

28,170

28,340

28,470

28,610

28,800

28,930

29,050

29,180

29,360

29,500

29,690

29,820

29,960

30,080

30,200

30,360

30,460

30,600

30,720

30, 860

30,960

31,070

31,190

31,330

31,440

Feb.

31,530

31,680

31,790

31,930

32,040

32,140

32,270

32,380

32,480

32,600

32,720

32,820

32,930

33,050

33,150

33,250

33,350

33,450

33,520

33,640

33,750

33,850

33,960

34,040

34,120

34,250

34,340

34,430

-

-

-

Mar.

34,500

34,610

34,720

34,770

34,840

34,960

35,070

35,170

35,250

55,330

35,410

35,460

35,530

35,620

35,680

35,750

35,820

35,900

35,950

36,060

36,170

36,230

36,310

36,410

36,480

36,540

36,640

36,730

36,810

36,890

36,950

Apr.

37,070

37,180

37,230

37,320

37,410

37,470

37,510

37,560

37,620

37,680

37,720

37,800

37,910

37,990

38,110

38,320

38,460

38,600

38,700

38,800

38,920

38,930

38,840

38,750

38,700

38,670

38,650

38,790

38,910

38,830

-

May

38,700

38,650

38,640

38,620

38,640

38,640

38,650

38,740

39,000

39,180

39,340

39,590

39,730

39,720

39,690

39,690

39 1 730

39,760

40,040

40,420

40,650

40,870

41,160

41,470

41,720

41,760

41,770

42,070

42,340

41,990

41,230

June

40,830

40,660

40,500

40,320

40,230

40,230

40,230

39,850

39,520

38,, 980

38,420

38,090

37,760

37,520

37,640

38,380

39,380

40,250

40,780

41,060

41,100

41,200

41,270

40,980

40,460

40,160

39,850

39,620

39,460

39,290

-

July

39,100

38,960

38,830

38,970

39,150

39,370

39,400

39,230

39,180

39,210

39,470

39,650

39,880

40,030

40,120

40,200

40,230

40,020

39,680

39,290

38,840

38,320

37,800

37,170

36,370

35,520

34,940

34,260

33,810

33,530

33,820

Aug.

33,810

33,650

33,520

33,910

34,360

35,900

36,970

37,630

38,390

39,050

39,520

40,040

39,860

39,560

38,970

38,190

37,340

36,460

3S.840

34,780

33,580

32,920

32,100

31,450

31,190

30,850

30,580

30,330

30,090

29,870

29,640

Sept.

29,440

29,220

28,970

28,750

28,550

28,400

28,330

28,130

27,820

27,640

27,460

27,290

27,370

27,440

27,440

27,410

27,390

27,390

27,39O

27,390

27,420

27,530

27,710

27,850

27,900

28,000

28,110

28,000

27,850

27,680

-

Monthly gage height and contents, water year October 1950 to September 1951

Date

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

Calendar year 1950. .....

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

Water year 1950-51. .....

Gage height 

(feet)

45 93

52.31

-

52.87

-

Contents 

(acre-feet)

27,080

-

39 290

27,680

-

Change in contents 

during month 

(acre-feet)

 +6,300

+6,140

-1,960

+22,280
96 MUD LAKE-LOST RIVER BASINS

Sharp ditch near Mackay, Idaho

Location. Lat 43°57 I , long. 113°39', in sec. 7, T. 7 N., T. 24 E., on left bank 1,600 ft 

downstream from head of ditch, three-quarters of a mile downstream from Mackay Reservoir, 

and 3^ miles northwest of Mackay.

Records available.--June 1912 to October 1914, March 1919 to September 1951.

Gage. Water-stage recorder and artificial control. Altitude of gage is 5,980 ft (from 

Typographic map). Prior to Apr. 3, 1937, and June 24, 1938, to Apr. 25, 1939, staff 

gage and Apr. 3, 1937, to June 23, 1938, recording gage, at site 1,400 ft upstream 

(upstream from Hintze ditch) at different datum.

Extremes. Maximum discharge during year, 46 cfs May 30 {gage height, 1.61 ft); no flow 

for long periods during fall and winter.

1912-14, 1919-51: Maximum discharge, 50 cfs July 10, 1947 (gage height, 1.63 ft); 

no flow at times.

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

SEarp 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 watermaster to have carried 176 acre-ft during year (136 in June and 40 in 

August).

Cooperation. Water-stage recorder inspected by Water District No. 27.

Discharge, in cubic feet per second, water year October 1350 to September 1351

Day

1

2

3

4

5

6

7

8

3

1O

11

12

13

14

15

16

17

18

13

20

21

22

23

24

25

26

27

28

23

30

31

Total

Mean

Ac- ft

Oct.

0.4

.4

*.5

.5

.7

.8

.7

.5

.5

.5

.5

.6

.6

.6

.6

.7

.8

.3

1.6

5.8

3.8

3.2

2.1

2.2

2.2

2.2

2.1

1.9

1.3

2.2

2.8

42.8

1.38

85

Nov.

2.8

4.0

4.7

5.4

472

4.0

a3.8

a3.5

a2.8

a2.8

a2.8

g2.8

*g2.6

a2.6

a2.6

a2.6

aO

aO

0

0

0

0

0

0

0

0

0

0

0

0

-

54.0

1.80

107

Dec.

(»)

0

0

0

Jan.

(*)

0

0

0

Feb.

0

0

0

Mar.

(*)

o

0

0

Apr.

0

0

0

0

0.3

2.4

2.4

2.8

5.8

8.2

3.6

10

*10

11

11

12

11

11

12

12

3.6

5.8

6.1

7.1

7.1

7.1

7.4

7.4

7.4

7.4

-

205.5

6.85

408

May

7.4

7.4

10

11

11

11

11

111'

11

11

11

11

11

8.5

8.2

*8.5

8.2

8.2

7.3

11

15

23

29

32

34

37

41

45

46

41

543.3

17.7

1,090

June

33

15

16

18

18

18

20

22

23

25

26

26

25

24

23

26

*28

g29

g34

851

g35

g33

g33

g33

g33

g32

g32

g32

g33

g30

-

812

27.1

1,610

July

g28

32

38

37

36

37

43

44

44

42

33

33

37

32

25

28

*33

27

22ie

23

28

26

26

26

26

30

34

33

30

26

387

31.8

1,360

Aug.

27

26

24

19

15

3.0

3.6

3.8

6.6

9.3

9.3

9.0

12

18

18

17

24

26

*25

8.3

19

39

38

38

36

34

33

32

33

34

34

679.9

21.9

1,350

Sept.

23

17

8.2

6.1

9.0

4.0

11

17

17

19

21

17

15

15

15

15

15

15

15

15

17

19

20

20

20

20

20

8.O

3.9

679

-

444.1

14.8

881

Calendar year 1350: Max 37 Mln 0 Mean 9.43 Ac-ft 6,820

Water year 1950-51: Max 46 Mln 0 Mean 10.3 Ac-ft 7,430

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for adjacent perit 

for Big Lost River below Mackay Reservoir.

g Computed from once-daily staff-gage readings.

ids and records
MUD LAKE-LOST RIVER BASINS 97

Big Lost River below Mackay Reservoir, near Mackay, Idaho

Location.--Lat. 43°56', long. 113°38', in sec. 18, T. 7 N. , R. 24 E. , 450 ft downstream 

from Oleson Suspension Bridge, 1 mile downstream from head of Sharp ditch, lj miles 

downstream from Mackay Reservoir, and 2^ miles northwest of Mackay.

Drainage area. 813 sq mi.

Records available.--December 1903 to August 1903 and May 1912 to March 1915 (published as 

"near Mackay"), January 1919 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 5.960 ft (from topographic map). Prior 

to May 12, 1912, and June 5, 1912, to Apr. 28, 1913, staff gage at different datums at 

sites within 1 mile upstream. May 12 to June 4, 1912, staff gages at different datums 

at site li miles upstream (above Sharp ditch). Apr. 29, 1913, to Mar. 15, 1915, staff 

gage at site 1 mile downstream (below Streeter ditch) at different datum.

Average discharge.--35 years (1904-5, 1912-14, 1919-51), 272 cfs.

Extremes.--Maximum discharge during year, 1,790 cfs May 30 (gage height, 4.62 ft); minimum, 49 cfs Oct. 4, 5 (gage height, 1.58 ft).

1903-6, 1912-15, 1919-51: Maximum discharge, 2,990 cfs June 10, 1921 (gage height, 

5.79 ft); minimum, 18 cfs Nov. 1, 1934; minimum gage height, 1.23 ft Nov. 5-8, 1926.

Remarks.--Records good. Sharp ditch (see preceding page) is only diversion between

station and reservoir; about 9,000 acres of land are irrigated by diversions from river 

and tributaries above reservoir. Plow regulated by Mackay Reservoir (see p. 95).

Cooperation.--Water-stage recorder inspected by Water District No. 27.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

2.0 

2.5

162

395

3.0 

4.0 

4.6

677

1,310

1,740

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

52

52

*54

52

49_

50

50

52

52

54

56

56

56

58

60

60

60

60

62

60

60

65

65

65

65

67

69

71

71

71

71

1,845

59.5

3,660

Nov.

71

71

71

71

71

71

73

73

78

78

78

80

*83

86

36

86

88

88

88

88

88

88

88

90

90

90

88

88

90

90

-

2,469

82.3

4,900

Dec.

88

88

88

88

88

88

90

90

90

90

90

93

93

93

93

93

93

96

96

*96

96

96

96

96

96

96

98

98

98

104

104

2,902

93.6

5,760

Jan.

104

104

104

104

104

104

104

104

107

107

110

110

110

110

110

110

110

*110

110

110

110

113

113

113

113

113

113

113

113

113

113

3,386

109

6,720

Feb.

116

116

116

116

116

116

116

119

119

119

119

119

119

119

119

119

119

119

119

119

119

119

119

119

119

119

119

122

-

-

-

3,314

118

6,570

Mar.

122

122

122

122

*122

125

125

125

125

125

125

IZS

125

125

125

125

125

125

125

125

125

125

125

125

125

125

125

125

128

128

128

3,869

125

7,670

Apr.

128

128

125

125

125

125

125

125

122

119

119

119

125

*135

145

166

197

219

245

259

297

317

317

312

307

302

297

278

268

307

-

5,978

199

11,860

May

292

273

264

250

241

236

245

268

297

322

358

395

500

533

539

516

*522

544

601

677

731

785

839

977

1,180

1,260

1,310

1,370

1,540

1.720

1,600

21,185

683

42,020

June

1.590

1,160

1,000

875

761

725

719

761

731

833

851

833

827

839

863

869

*881

911

965

1,050

1,060

1,080

1,080

1,070

1,050

990

929

923

917

905

-

27,848

928

55,240

July

917

923

857

773

749

642

671

713

719

707

648

612

572

533

544

555

*607

677

719

761

791

773

779

803

809

809

893

929

767

659

485

22,394

722

44,420

Aug.

535

624

561

461

368

287

227

252

252

252

241

250

412

618

749

751

761

779

*767

809

809

737

707

655

572

516

456

400

400

400

390

15,914

515

51,560

Sept.

584

590

595

584

584

384

579

568

363

322

254

250

254

254

254

250

223

174

174

170

170

166

166

166

166

166

162

210

254

254

-

7,890

263

15,650

Calendar year 195O : Max 893 Min 49 Mean 246 Ac-ft 178,300

Water year 1950-51 : Max 1,720 Min 49 Mean 326 Ac-ft 236,000

Discharge measu this day.
98 MOD LAKE-LOST RIVER BASINS

Big Lost River near Areo, Idaho

Location. Lat 43°35', long. '13°17', in SW£ sec. 17, T. 3 N., R. 27 E., on right bank 600 

ft downstream from head of box canyon, 2,000 ft southeast of Reed (formerly Mower) 

ranch house, and 3 miles southeast of Arco.

Drainage area. 1.410 sq mi, approximately. 

Records available.--August 1946 to September 1951. 

Gage. Water-stage recorder. 

Average discharge. 5 years, 43.5 cfs.

Extremes.--Maximum discharge during year, 272 cfs Aug. 6 (gage height, 2.60 ft); maximum 

gage height, 2.74 ft Mar. 17 (ice jam); minimum discharge not determined, occurred 

 during period of ice effect.-

1946-51: Maximum discharge, 285 cfs June 6, 1947 (gage height, 2.60 ft); maximum 

gage height, 3.83 ft Feb. 3, 4, 1947 (ice jam); minimum discharge, 3.0 cfs May 20, 21, 

1948 (gage height, 1.01 ft).

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

which are poor. Station is below all large diversions for irrigation in Big Lost River 

Valley. Flow regulated by Mackay Reservoir (see p. 95 ). About 42,000 acres of land 

irrigated by diversions from river and tributaries above station.

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

29

29

*28

27

27

27

25

25

24

22

22

22

21

21

20

19 

19

18

19

19

20

20

20

21

21

21

21

21

21 

22

24

695

22.4

1,380

Nov.

24

23

23

22

22

22

22

22

20

It

18

18

19

*20

21

23 

24

25

25

25

25

25

25

24

24

24

24

24

24

24

-

679

22.6

1,350

Dec.

23

23

25

25

24

24

24

23

22

22

21

21

21

20

21

i

20

20

20

*20

20

21

22

22

23

22

22

22

21

20

. 674

21.7

1,340

Jan.

15

15

15

16

*16

y

I

I

f 16

1

J

12

1

> 10

I

458

14.8

908

Feb.

10

10

13

} !*

-

355

12.7

704

Mar.

> 12

: 7.

1 13

 14

397

12.8

787

Apr.

15

16 I "

V TO

19

21

23

24

*25

25

24 

24

23

22

24

23

22

22

22

20

19

19

19

21 

21

-

618

20.6

1,230

May

22

26

31

31

32

33

34

35

39

37

34

33

43

53

62

*65 

61

61

50

56

45

34

25

23

32

34

37

54

97 

105

122

1,446

46.6

2,870

June

149

196

214

208

158

82

51

40

39

35

32

30

*29

26

25

25 

25

*25

24

24

26

28

29

32

33

38

45

41

40 

37

-

1,786

59.5

3,540

July

33

32

34

35

34

34

33

28

27

28

27

28

29

31

29

27 

24

*24

24

24

24

24

25

26

27

28

29

32

47 

53

54

954

30.8

1,890

Aug.

46

43

56

221

256

259

250

211

196

186

155

105

80

62

61

*61 

62

53

li

43

45

56

85

105

122

140

*146

149

137 

125

111

3,668

118

7,280

Sept.

100

85

82

80

78

76

76

78

92

102

113

105

102

*113

116

111 

102

102

94

80

82

85

87

87

87

87

82

78

76 

71

"

2,709

90.3

5,370

Calendar year 1950 : Max 94 Min 6 Mean 24.0 Ac-l't 17,350

Water year 1950-51: Max 259 Min - Mean 39.6 Ac-ft 28,650

* Discharge measurement made on this day.

Note..--Stage-discharge relation affected by ice Nov. 9-16, Dec. 1, 2, 5-7, 14, 17, 20, Dec. 22 to 

about Mar. 31. No gage-height record Jan. 3-19, Jan. 28 to Mar. 12, Mar. 20 to Apr. 13; discharge 

estimated on basis of weather records, recorded range in stage, and records for station below Mackay 

Reservoir.
RILEY CREEK BASIN 99

Rlley Creek Springs near Hagerman, Idaho

Location. Lat 42°45'40", long. 114"51'30", in SW£NE£ sec. 6, T. 8 S. , R. 14 E. , on right 

bank 50 ft upstream from junction with Lewis Spring, 300 ft downstream from U. S. Pish 

Hatchery, and 5 miles southeast of Hagerman.

Records available. March 1950 to June 1951 (discontinued).

gage. Water-stage recorder. Altitude of gage is 2,960 ft (from topographic map).

Extremes. 1950-51: Maximum daily discharge, 42 cfs many days during January, February, 

March, May, June 1951; minimum daily, 29 cfs Mar. 1-15, 1950.

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 

increased beginning Nov. 21. Slight regulation from filling and emptying of fishponds 

above station.

Rating table, Oct. 1, 1950, to June 13, 1951 (gage height, 

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

0.9 27

1.0 31

1.1 36

1.2 40

1.3 45

Discharge, In cubic feet per second, October 1950 to June 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

Total

Mean

Ac- ft

Oct.

31

31

31

31

*31

30

30

30

31

31

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

937

30.2

1,860

Nov.

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

*30

30

30

30

31

33

33

37

40

40

39

39

39

39

-

970

32.3

1,920

Dec.

39

39

40

40

39

39

39

39

39

39

39

39

39

*39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

1,211

39.1

2,400

Jan.

39

39

38

38

38

38

38

38

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

40

42

42

42

42

42

1,219

39.3

2,420

Feb.

42

42

42

42

42

42

41

41

41

41

41

41

41

41

41

*41

41

41

41

41

42

42

42

41

41

41

42

42

-

_

-

1,159

41.4

2,300

Mar.

42

42

42

42

42

42

42

42

42

42

42

42

42

42

*42

42

42

42

42

42

il

41

41

41

41

41

41

41

41

41

41

1,291

41.6

2,560

Apr.

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

*38

38

38

38

38

*38

38

37

57

37

38

38

38

38

38

-

1,167

38.9

2,310

Calendar year : Max Min Mean

May

38

38

40

42

42

42

42

42

42

42

42

42

42

42

41

*41

41

41

41

41

41

41

40

41

41

41

41

42

42

42

41

1,277

41.2

2,530

June

42

4T

42

42

42

42

*42

38

33

34

34

3>

34

-

-

.

_

-

-

-

.

-

_

_

-

_

_

.

_

-

-

500

38.5

992

July Aug. Sept.

Ac-ft

The period : Max - Mln - Mean - Ac-ft 19,290

* Discharge measurement made on this day.

Note. No gage-height record Jan. 29 to Feb. 15; discharge estimated on basis of records for adjacent periods 'and records for other Snake River Springs .
100 RILEY CREEK BASIN

Brailsford ditch near Hagerman, Idaho

Location. Lat 42°46'00", long. 114°51'50", in NfNW£ sec. 6, T. 8 S., R. 14 E., on left 

bank 250 ft upstream from road bridge, 0.5 mile downstream from point of diversion 

at Lewis Spring, and 4.2 miles southeast of Hagerman.

Records available. June to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,000 ft (from topographic map).

Extremes.--Maximum daily discharge, 16 cfs June 23-26, July 19-26, 30, Aug. 19, 20; minimum daily, 6.2 cfs July 28.

Remarks. Records fair. Brailsford ditch diverts from Lewis Spring for Irrigation.

Rating table, June 1 to Sept. 30, 1951 (gage height, In feet, 

and discharge, In cubic feet per second)

1.2

1.3

1.4

1.5

5.2

7.7

10

13

Discharge, In cubic feet per second, June to September 1951

Day

1

2

3

4

5

6

7

3

9

10

11

12

13

14

15

16

17

18

19 

20

21

23

23

24

25

26

37

38 

29

30

31

Total

Mean

Ac- ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr.

,

May June

. 15

*15

15

15

16

16

16

16

15

13 

9.0

14

-

445.0

14.8

883

July

14

15

14

14

14

14

14

15

14

14

14

14

15

15

15

15

15

15

16 

16

*16

16

16

16

16

16

12

6.2 

15

16

15

452.2

14.6

897

Aug.

15

15

15

15

15

15

15

14

14

14

13

12

11

9.6

9^3

11

14

15

16 

16

15

14

13

13

13

13

13

13 

13

14

14

421.9

13.6

837

Sept.

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14 

14

14

14

14

13

13

13

13

13 

13

13

-

413

13.8

819

Calendar year : Max Mln Mean Ac -ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

Note.--No gage-height record June 1-19, June 23 to July 15, July 17-2O, Aug. 18, 19, 21-30j discharge estimated on basis of records for Riley Creek below Lewis Spring and other Snake River 

Springs.
RILEY CREEK BASIN 101

Riley Creek below Lewis Spring, near Hagerman, Idaho

Location . Lat 42°45'50", long. 114°51'40", in SE^M^ sec. 6, T. 8 S., R. 14 E., on 

left bank 150 ft upstream from road bridge, 1,800 ft downstream from Lewis Spring, 

2,200 ft downstream from U. S. Fish Hatchery, and 4^ miles southeast of Hagerman.

Records available. June to September 1951.

Gage . Water-stage recorder. Altitude of gage Is 2,950 ft (from topographic map).

Extremes . Maximum daily discharge, 67 cfs July 28; minimum dally, 58 cfs July 14-22.

Remarks . --Records good. Flow at this station plus flow of Brailsford ditch (see precedIng page) gives total flow from Riley and Lewis Springs plus small intervening inflow. 

Flow diverted from Lewis Spring to Brailsford ditch for irrigation. Slight regulation 

by ponds at fish hatchery.

Discharge, in cubic feet"per second, June to September 1951

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

a60

60

60

*60

60

60

59

59

59

59

60

62

66

60

1,804

60.1

3,580

July

60

59

60

60

60

60

60

59

60

60

60

60

59

58

58

58

58

58

58

58

*58

58

59

60

60

60

63

67

59

59

59

1,845

59.5

3,660

Aug.

59

59

59

59

59

59

59

60

59

60

60

62

63

64

65

62

60

60

60

60

61

62

62

63

62

63

62

62

62

61

*61

1,889

60.9

3,750

Sept.

60

60

61

62

62

62

62

62

62

62

63

63

63

63

63

63

63

63

63

63

63

63

63

63

63

63

64

64

65

65

-

1,881

62.7

3,730

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of subsequent records and records for other 

Snake River springs .
102 SNAKE RIVER MAIN STEM

Snake River below Lower Salmon Falls, near Hagerman, Idaho

Location. Lat 42°51'36", long. 114°54'42", in lot 3, sec. 2, T. 73., R. 13 E., on right 

bank half a mile downstream from lower Salmon Falls powerplant, 1 mile upstream from 

Big Wood (Malad) River, and 2-J miles (revised) north of Hagerman.

Records available. November 1937 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,727.7 ft above mean sea level, datum of 

T929, supplementary adjustment of 1947, by stadia levels. Prior to Jan. 3, 1950, at 

site 340 ft upstream at same datum.

Extremes.--Maximum discharge during year, 23,400 cfs May 16 (gage height, 13.56 ft); min- 

 imum, 842 cfs Apr. 28 (gage height, 3.08 ft); minimum daily, 3,970 cfs July 8.

1937-51: Maximum discharge, 29,800 cfs June 27, 1950 (gage height, 15.60 ft); minimum, probably less than 100 cfs Jan. 10, 11, 1950, when river was below intake pipes; 

minimum daily, that of July 8, 1951.

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

good. Plow regulated by Lower Salmon Falls powerplant and many reservoirs above station. Practically entire flow at Milner diverted during irrigation season; only minor 

diversions below Milner.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

Oct. I to May 19

6.0 4,820

7.0 6,720

8.0 8,810

10.0 13,600

12.0 18,900

13.0 21,700

May 28 to Sept. 30

5.0 3,280

6.0 4,880

7.0 6,720

Note. Same as

preceding table

above 7.0 ft.

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

8,390

alO,000

all, 200

all, 000

9,820

9,610

8,020

8,400

10,400

9,210

9,790

9,250

9,470

10 , 400

8,440

10,200

11,200

9,410

10,500

10 , 300

10,500

9,800

11.900

9,440

8,420

*9 , 460

9,020

9,630

8,570

11,300

10 , 400

303,450

9,789

601,900

Nov.

9,040

8,670

9,950

10,400

5,500

11,000

9,760

9,400

9,390

9,000

9,020

9,930

10,800

9,460

10,300

8,820

9,670

9,280

9,530

10,500

11,000

10,400

10,300

11,000

11,300

11,500

11,900

11,000

9,740

9,280

-

296,840

9,895

588,800

Dec.

8,700

7.700

10 , 500

12,400

10,600

10,400

*9,750

9,980

9,310

10,700

11,500

11,400

9,970

11,000

10,000

9,960

12,100

11,700

11,600

10,500

11,200

11,100

10,400

11,300

11,800

11,700

11,300

11,900

10,500

11,100

10,800

332,870

10,740

660,200

Jan.

10,900

11,600

9.110

12,100

10,900

10,400

11,000

12,000

10,900

12,000

12,300

14,000

14,500

13,900

14,800

14,600

14,600

14,300

14,500

13,800

13 , 400

14,700

14,100

16,000

16.800

16,100

16,200

16,100

15,200

12,600

15,300

418,710

13,510

830,500

Feb.

16,700

16,600

16,200

16,900

17,300

18.200

17,900

17,500

17,200

17,300

17,100

16,400

16 , 200

16,500

*15,600

15,800

15,900

15,900

15,500

16,000

16,300

15,900

15,000

14,800

15,500

15,600

15,700

14.100

-

-

-

455,600

16,270

903,700

Mar.

14,900

15,700

14,900

15,200

15,600

15,800

16,000

15,800

15,900

15,600

15,500

15,900

16,700

15,600

*15,900

15,400

14.300

16,500

15,900

15, 700

15,900

15,800

15,300

15,500

15,400

15,600

15,300

15,300

15,800

15,800

15,900

483,400

15,590

958,800

Apr.

15,900

15,700

,5'i5,000

16.000

15,500

15,100

14,700

14,600

15,300

14,000

15,400

14,000

12,500

10,300

11,700

11,000

10,900

7,540

7,200

7,500

7,190

6,470

6,780

6.250

6,380

*7,330

7,060

7,490

7,470

8,780

-

331,020

11,030

656,600

May

11,800

13,700

16,500

16,300

15,700

13,800

14,900

13,800

11,700

12,200

11,600

9.890

13,600

17,100

19,500

21.200

18,600

16,600

a!5,500

al5,700

a!5,500

a!6,500

a!7,000

a!6,000

a!5,500

a!6,000

a!7,000

*al6,500

16,200

16,700

16,200

478,790

15,440

949,700

June

15.BOO

14,300

14,200

14,400

14,600

12,500

11,800

11,400

9,510

7,570

7,940

6,970

7,090

7,960

7,310

7,140

6,390

8,030

7,070

7,230

6,820

*7,950

9,960

9,750

10,700

7,610

8,120

11,000

10,600

8,840

-

290,560

9,685

576,300

July

7,440

8.090

7,910

5,330

7,600

8,060

6,720

5.970

7,330

6,010

6,850

*6,940

*6,890

7,090

5,900

6,860

6,240

6,510

6,360

6,520

6,460

6,600

6,960

6,760

7,050

6,820

7,050

6,750

7,050

7,160

7,380

210,660

6,795

417,800

Aug.

,480

,240

,500

,370

,410

,500

,960

,920

,840

,500

,300

,960

,780

,180

,040

,870

,320

,440

.470

,700

,660

,030

,150

,330

,480

,O4O

,090

,430

,320

,250

,130

230,690

7,442

457,600

Sept.

*7,370

7,360

7,280

7,520

7,600

7,510

7,580

7,420

7,540

7,520

7.270

7,930

7,740

8,160

7,950

7,780

7,710

8,050

7,830

7,720

7,910

8,320

7,950

7,930

8,360

8,350

8,290

8,630

9.090

8,870

-

236,540

7,885

469,200

Calendar year 1950: Max 24,700 Mln 5,O8O Mean 10,530 Ac-ft 7,624,000

Water year 1950-51: Max 21,200 Mln 3,970 Mean ll,15o Ac-ft 6,071,000

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for stations at King Hill and near 

Buhl.
MALM) RIVER BASIN 103

Big Wood River near Ketchum, Idaho

Location. Lat 43°48 I , long. 114°26', in sec. 4, T. 5 N., R. 17 E., on left bank half 

a miles upstream from North Pork and 8 miles northwest of Ketchum. Prior to Nov. 7, 

1950, at site 560 ft upstream.

Drainage area. 137 sq mi.

Records available. May 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,240 ft (from topographic map). Prior 

Uo Nov. 7, 1950, staff gage at site 560 ft upstream at different datum, read once 

daily.

Extremes. Maximum discharge during year, 946 cfs May 28 (gage height, 4.84 ft); minimum 

recorded, 14 cfs sometime during period Jan. 1-22 (from recorded range in stage).

1948-51: Maximum discharge observed, 1,200 cfs June 3, 1948 (gage height, 3.20 ft); 

minimum observed, 14 cfs sometime during period Jan. 1-22, 1951.

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

which are fair. Minor diversions for nonconsumptive uses on Boulder Creek; water returned to stream above station. About 97 acre-ft of storage in ponds in Prairie Creek; 

diversion point below station for irrigation.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

Oct. 1 to Nov. 7

.9

102

144

1.8 

2.1 

2.3

68

103

Nov. 8 to Sept. 30

2.6 175

3.0 290

3.5 450

4.O 625

4.5 815

5.0 1,010

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Cf sm

In.

Ac-ft

Oct.

89

87

85

85

87

89

87

87

85

83

81

81

80

80

85

83

85

83

81

80

78

78

78

78

89

91

96

96

124

120

106

2,717

87.6

0.639

0.74

5,390

Nov.

100

96

92

96

98

98

96

*86

76

65

74

78

73

71

62

66

66

68

66

64

68

66

64

62

64

64

64

64

66

68

-

2,241

74.7

0.545

0.61

4,440

Dec.

64

58

62

66

58

60

64

62

60

60

60

60

*51

b57

b64

b62

59

b54

b60

b60

52

bSO

b54

b56

b54

44

39

46

b58

59

52

1,765

56.9

0.415

0.48

3,500

Jan.

42

55

62

60

50

40

45

56

58

60

62

54

54

56

56

56

58

54

54

45

56

60

*56

61

59

59

53

48

b50

b52

b54

1,685

54.4

0.397

0.46

3,340

Feb.

b55

b55

b55

b56

b56

57

54

53

60

60

60

57

45

45

52

54

48

54

49

53

54

50

56

54

54

44

52

*45

_

_

-

1,487

53.1

0.388

0.40

2,950

Mar.

46

51

51

51

49

49

50

50

51

46

46

50

52

51

52

50

46

46

51

53

54

54

46

52

57

61

60

56

61

61

59

1,612

52.0

0.380

0.44

3,200

Apr.

60

59

65

79

94

118

155

178

198

230

227

260

314

387

408

398

429

457

478

471

422

380

368

*353

326

326

338

404

380

332

-

8,694

290

2.12

2.36

17,240

May

302

284

£S7

326

394

471

566

576

583

611

672

639

576

506

471

496

586

660

696

707

*739

811

822

822

799

771

832

922

898

840

759

19,424

627

4.58

5.27

38,530

June

672

594

538

499

513

485

454

42 6

401

598

418

488

552

625

732

832

832

811

*771

739

724

688

611

576

566

562

548

552

544

53O

-

17,681

589

4.30

4.80

35,070

July

520

527

524

524

492

454

436

422

401

404

365

341

329

332

326

344

3O5

290

290

275

257

236

230

218

*212

20O

215

275

299

245

218

1O, 506

339

2.47

2.85

20, 840

Aug.

198

190

245

287

221

206

188

172

168

155

148

145

140

135

130

128

123

121

118

121

138

135

128

123

116

114

110

114

110

HO

no

4,647

ISO

1.09

1.26

9,220

Sept.

105

103

101

99

99

99

97

95

94

94

94

94

94

*92

92

92

90

90

90

86

88

88

88

86

86

86

84

84

84

84

-

2,758

91.9

0.671

0.75

5,470

Calendar year 1950: Max 732 Min 32 Mean 157 Cfsm 1.15 In. 15.60 Ac-ft 114,000

Water year 1950-51: Max 922 Min 39 Mean 206 Cfsm 1.50 In. 20.42 Ac-ft 149,200

Peak discharge (base, 400 cfs).--A

(3.47 ft); May 11 (9:30 to 10:30 p.m

pr. 18 (9 p.m.) 510 cfs (3.67 ft); Apr. 28 (7 p.m.) 440 cfs 

.) 700 cfs (4.20 ft); May 28 (6 a.m.) 946 cfs (4.84 ft); June

(3.51 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--No gage-height record Nov. 9-12, Nov. 15 to Dec. 12, Jan. 1-22; discharge computed on basis 

of weather records and records for .combination of Big Wood River and Big Wood Slough at Hailey, and 

Warm Springs Creek at Guyer Hot Springs, near Ketchum.
104 MALAD RIVER BASIN

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

Location. Lat 43°41', long. 114°25', in NE£ sec. 15, T. 4 N., R. 17 E., on left bank at 

Guyer Hot Springs, 2 1/8 miles upstream from mouth and 2.2 miles west of Ketchum.

Drainage area. 96 sq mi, approximately.

Records available. November 1940 to September 1951.

Gage. Water-stage recorder. Datum of gage is 5,901.7 ft above mean sea level (riverprofile survey). Prior to Mar. 7, 1942, staff gage at same site and datum.

Average discharge. 10 years (1941-51), 84.6 cfs.

Extremes. Maximum discharge during year, 634 cfs May 28 (gage height, 3.17 ft); minimum, 

14 cfs Mar. 10 (gage height, 0.82 ft), ice jam upstream.

1940-51: Maximum discharge, 696 cfs May 30, 1943 (gage height, 3.36 ft); minimum, 

6 cfs Feb. 29, 1944 (gage height, 0.55 ft), ice jam upstream; minimum daily, 17 cfs 

Dec. 17, 1946.

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

FaTr. Diversions above station for irrigation of about 200 acres. Small diversion 

from Guyer Hot Springs for recreational purposes bypasses station.

Rating tables, water year 195O-51 (gage height, In feet, and discharge, In 

cubic feet per second)

Oct. 1 to Jan. 10 Jan. 11 to June 30 July 1 to Sept. 30 

1.0 25

1.1

1.2

1.3 57

1.0 27 2.0 205

1.2 48 2.5 364

1.4 76 3.2 625

1.7 133

40

65

112

173

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

39

38

38

38

38

39

38

38

37

37

36

36

34

34

38

37

37

37

36

34

34

34

34

34

39

42

45

44

51

57

56

1,209

39.0

2,400

Nov.

49

46

45

45

45

45

43

44

36

32.

40

40

*38

39

34

37

38

40

39

38

42

40

39

38

40

40

40

39

40

42

-

1,213

40.4

2,410

Dec.

40

33

39

41

34

37

41

40

38

38

38

38

*33

34

39

36

34

34

38

37

33

32

34

34

34

32

32

36

37

37

30

1,113

35.9

2,210

Jan.

26

34

39

38

31

25

28

36

36

37

39

36

36

37

37

37

37

33

35

27

37

35

*32

35

36

36

33

27

a28

a30

a31

1,044

33.7

2,070

Feb.

a32

a33

34

37

39

37

37

39

39

39

41

39

31

32

37

35

32

38

29

36

36

33

36

35

35

28

35

*29

_

_

-

983

35.1

1,950

Mar.

31

37

34

35

34

35

35

35

34

28

36

34

35

35

37

27

3T

30

36

36

37

37

34

38

40

44

48

48

51

52

49

1,153

37.2

2,290

Apr.

49

51

58

79

104

120

153

169

177

192

179

200

251

298

302

282

295

312

312

298

263

227

*208

197

182

177

179

216

211

187

-

5,928

198

11,760

May

169

157 162"

182

230

282

343

374

368

386

416

382

332

295

279

309

379

443

455

455

*455

482

522

560

543

526

560

625

569

498

420

12,159

392

24,120

June

364

309

273

248

245

230

213

200

187

182

187

227

251

279

319

368

368

343

315

*292

279

260

233

211

202

195

189

182

177

172

-

7,500

250

14,880

July

164

162

158

158

149

139

129

125

120

122

116

107

102

100

95

92

90

85

85

82

78

75

72

71

*71

71

69

72

71

71

G8

3,169

102

6,290

Aug.

65

62

69

87

71

68

65

61

58

57

55

55

53

52

52

50

48

47

48

48

52

56

53

52

48

47

46

47

48

47

46

1,713

55.3

3,400

Sept.

45

45

45

44

42

42

42

41

41

41

41

41

41

*41

41

40

40

40

40

3£

40

41

41

40

40

41

40

40

39

39

-

1,233

41.1

2,450

Calendar year 1950: Max 376 Mln 18 Mean 79.8 Ac-ft 57,750

Water year 1950-51: Max 625 Mln 25 Mean 105 Ac-ft 76,230

Peak discharge (base. 500 cfs).--Apr. 18 (10 p.m.) 340 cfs (2.44 ft); May 11 (2:30 a.m.) 428 cfs 

(2.68 ft); May 28 (6 p.m.) 634 cfs (3.17 ft); June 17 (1 a.m.) 39O cfs (2.57 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for Big Wood 

River near Ketchum.
MALAD RIVER BASIN 105

Big Wood Slough at Halley, Idaho

Location. Lat 43°31'00", long. 114°19'30", in sec. 9, T. 2 N. , R. 18 E., on left bank 

25 ft upstream from bridge on State Highway 22, an eighth of a mile northeast of Big 

Wood River, and an eighth of a mile southwest of Hailey.

Drainage area. See Big Wood River at Hailey, p. 

Records available. June 1915 to September 1951.

Gage. Water-stage recorder. Datum of gage is 5,301.17 ft above mean sea level, preliminary. Prior to Aug. 14, 1934, staff gages at or near highway bridge at different 

datums.

Average discharge. 36 years, 107 cfs.

Extremes. Maximum discharge during year 73 cfs June 25 (gage height, 3.71 ft); maximum 

 gage height, 4.22 ft Dec. 31 (ice jam); no flow part of Jan. 29.

1915-51: Maximum discharge observed, 419 cfs June 6, 1921, from rating curve extended above 280 cfs; maximum gage height, 5.55 ft (top of ice in well) Jan. 20-23, 

1937; no flow at times, in several years.

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

which are poor. Flow controlled at inoperative powerplant half a mile upstream to 

meet the requirements of irrigation diversion 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. 106) is total discharge of river at this point.

Cooperation.--Water-stage recorder inspected and 1 discharge measurement furnished by 

Water District No. 7 AB.

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

I 4.0

4.5

5.0

. 3.0

140.5

4.53

279

Nov.

' 3.0

15

32

*32

33

30

32

32

33

47

64

64

62

61

60

60

60

60

60

60

63

-

990.0

33.0

1,960

Dec.

61 

56 

55 

61

55

53

58

57

56

56

55

57

*53

52

57

55

54

52

55

54

52

46

51

52

50

48

44

47

54

b56

b58

1,670

53.9

3,310

Jan.

11 12

M

 7

*7.0

7.4

7.0

b6

b5

b3

b5

be

257.4

8.30

511

Feb.

b6 

b6 

b7 

b7

b7

b7

b7

7

6

5

5

5.7

b6.0

6

6

6

6

5

5

5

5.0

5

5

5

5

5

5.0

5

_

-

-

160.7

5.74

319

Mar.

5 

*5.0 

b5.0 

b5.0

b4.8

b4.6

4.6

4.4

4.6

b4.5

4 .2

b4.6

4.6

4.6

4.6

4.6

b4.4

b4.4

b4.6

4.6

4.6

4.6

b4.3

4.3

4.3

4.3

4.4

b4.3

4.4

4.4

4.4

141.0

4.55

280

Apr.

4.2 

4.4 

4.6 

4.8

4.9

4.2

3.7

3.0

2.9

2.9

2.8

2.4

2.3

3.5

3.4

3.4

3.4

17

56

55

53

51

*47

46

44

44

43

48

46

44

-

654.8

21.8

1,300

May

42 

41 

40 

41

44

47

49

49

49

50

51

52

50

48

45

42

37

38

39

38

33

*34

35

33

37

30

30

31

31

29

2J3

1,241

40.0

2,460

June

25 

23 

20 

18

18

17

*17

15

14

12

12

15

17

20

24

28

30

31

*31

31

30

31

29

48

70

70

66

68

61

39

-

930

31.0

1,840

July

38 

38 

38 

42

69.

66

66

64

62

62

59

53

51

52

52

49

45

45

45

41

36

32

28

25

*23

21

20

25

35

27

26

1,335

43.1

2,650

Aug.

23 

19 

17 

50

37

37

31

28

42

39

19

16

16

13

11

7.2

6.6

7.0

6.8

6.8

6.8

7.

8.

8.

7 .

6.

e!

5.

6.

5.

5.

507.

16.

1,010

Sept.

5.5 

5.3 

5.1 

19

39

37

37

38

37

39

39

46

*49

45

42

40

39

39

37

36

36

37

36

36

35

37

35

30

31

31

-

1,017.9

33.9

2,020

Calendar year 195O: Max 101 Min - Mean 25.5 Ac-i*t 18,450

Water year 1950-51: Max 70 Min - Mean 24.8 Ac-ft 17,940

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.--No gage-height record Oct. 1-4, Oct. 6 to Nov. 12, Jan. 1-9, 11-23, Feb. 8-11, 14-2O, 22-26, 

28, Mar. 1, July 22; discharge estimated on basis of weather records and records for Big Wood River 

at Hailey and nearby streams.
106 MALAD RIVER BASIN

Big Wood River at Hailey, Idaho

Location.--Lat 43°31', long. 114°20' , in SW£ sec. 9, T. 2 N., R. 18 E., on left bank 

35 ft downstream from bridge on State Highway 22, a quarter of a mile southwest of 

Hailey, and three-eighths of a mile upstream from Croy Creek.

Drainage area. 640 sq mi, approximately (total area above river and slough stations).

Records available. July to December 1889, June 1915 to September 1951. Published as Wood 

River at Hailey in 1889.

Gage.--Water-stage recorder. Datum of gage is 5,298.00 ft above mean sea level, preliminary. Prior to Nov. 16, 1934, staff gages at bridge 35 ft downstream at different 

datums.

Average discharge.--36 years (1915-51), 306 cfs. 

Kiver and Big Wood Slough, 36 years, 413 cfs.

Average combined discharge of Big Wood

Extremes. Maximum discharge during year, 2,970 cfs May 28 (gage height, 6.21 ft); minimum recorded, 98 cfs Dec. 28 (gage height, 1.81 ft), but may have been les during 

period of ice effect.

1915-51 (river only): Maximum discharge, 4,480 cfs June 7, 1938; maximum gage 

height, 8.66 ft June 12, 1921; practically no flow Sept. 15-23, Nov. 20, 22, 23, 1931, 

Oct. 25, 1937.

1915-51 (combined): Maximum daily discharge, 4,500 cfs June 6, 7, 1938; minimum 

daily, 15 cfs Dec. 27, 1921.

Remarks. Records good. Water diverted around station through Big Wood Slough (see

p~. 105). Total flow of river at Hailey (combined flow of Big Wood" River and Big Wood 

Slough) is given on following page. Diversions for irrigation of about 10,300 acres 

above station. Plow bypasses station for irrigation of about 1,800 acres. Storage 

above station is negligible.

Cooperation.--Water-stage recorder inspected by Water District No. 7 AB.

Rating tables, water year 195O-51, except periods of ice effect (gage 

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

Oct. 1 to May 28 May 29 to Sept. 3O

1.8 

2.0 

2.3 

2.6 

3.0

100

142

220

316

486

3.5 

4.0 

5.0 

6.2

762

1,060

1,750

2,900

Z.O 

2.5 

3.0 

3.5

175

341

565

830

4.0 

5.0 

6.0

1,140

1,840

2,750

Discharge, In cubic feet per second, water year October 195O 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

Total

Mean

Ac-ft

Oct.

226

232

220

217

214

223

217

214

212

206

203

200

198

198

212

209

206

206

200

192

189

189

189

189

2OO

192

235

263

279

302

29?

6,724

217

13,340

Nov.

266

256

250

250

253

250

250

253

235

200

214

203

*195

200

176

195

198

206

192

171

176

169

169

164

169

169

169

166

164

176

6,104

203

12,110

Dec.

171

149

149

164

147

140

161

159

152

154

152

156

*138

127

154

144

138

129

142

140

127

110

129

131

124

116

106

104

112

bllO

blOO

4,235

137

8,400

Jan.

bllO

bl20

156

154

b!40

b!30

b!30

133

147

152

166

b!59

b!56

166

166

164

169

154

154

b!30

161

169

154

*171

171

171

164

152

144

b!45

b!45

4,703

152

9,330

Feb.

b!60

b!60

b!60

a!60

a!70

a!70

a!60

a!55

alSO

203

198

192

a!60

a!60

179

179

179

182

179

179

179

176

176

174

171

156

166

156

_

-

4,819

172

9,560

Mar.

156

*164

156

166

156

152

152

156

161

149

147

154

161

164

171

171

152

149

156

169

171

176

161

171

184

200

214

209

223

226

5?3

5,320

172

10,550

Apr.

229

238

269

.338

438

522

676

768

809

886

845

892

958

1,110

1,180

1,190

1,280

1.570

1,370

1,340

1,240

1,110

*1,050

1,040

970

940

940

1,110

1,150

1,040

-

27,298

910

54,140

May

946

886

880

916

' 1,040

1,210

1,430

1,580

1,580

1,640

1,830

1,850

1,650

1,460

1,330

1,380

1,610

1,880

2,050

2,050

2,020

*2,100

2,410

2,550

2,470

2,290

2,540

2.870

2,720

2,320

2,020

55,508

1,791

110, 100

June

1,8OO

1,570

1,410

1,300

1,260

1,210

1,140

1,060

992

962

992

1,130

1,330

1,520

1,820

2,110

2.150

2,060

*1,930

1,870

1,800

1,720

1,490

1,550

1,520

1,290

1,250

1,280

1,270

1,250

-

45,616

1,454

86,510

July

1.260

1,290

1,300

1.350

1,190

1,070

1,050

998

956

968

902

808

792

808

808

786

775

755

736

704

660

610

590

555

*535

501

471

520

670

540

506

25, 424

820

50, 450

Aug.

473

441

464

736

585

555

501

464

432

410

385

569

353

337

332

500

296

505

296

289

500

330

326

333

307

289

282

278

275

275

275

11,581

374

22,970

Sept.

268

261

255

226

198

195

192

192

192

195

195

207

*213

210

207

204

201

201

198

195

195

195

195

192

190

192

187

184

181

181

-

6,097

205

12,090

Calendar year 1950: Max 1,810 Min 93 Mean 410 Ac-ft 296,800

Water year 1950-51: Max 2,870 Mln 100 Mean 552 Ac-ft 399,500

* Discharge measurement made on this d 

a No gage-height record} discharge ee 

near Ketchum and Warm Springs Creek ne 

b Stage-discharge relation affected

of weather records and records for station
MALAD RIVER BASIN 107

Combined discharge, In cubic feet per second of Big Wood River and Big Wood Slough at 

Hailey, Idaho, water year October 1950 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

Total

Mean

Ac- ft

Oct.

230 

236

224

221

218

228

222

219

217

211

208

205

203

203

217

214

211

211

205

197

194

194

194

194

205

197

238

266

282 

305

295

6,864

221

13,610

Nov.

269 

259

253

253

256

253

253

256

238

205

229

235

227

233

206

227

230

239

239

235

240

231

230

224

229

229

229

226

224 

239

-

7,094

236

14,070

Dec.

232 

205

204

225

202

193

219

216

208

210

207

213

191

179

211

199

192

181

197

194

179

156

180

183

174

164

150

151

166 

166

158

5,905

190

11,710

Jan.

122 

132

168

166

152

142

142

145

159

164

173

166

163

173

173

171

176

161

161

137

168

176

161

178

178

178

170

157

147 

150

151

4,960

160

9,840

Feb.

166 

166

167

167

177

1.77

167

162

186

208

203

198

166

166

185

185

185

187

184

184

184

181

181

179

176

161

171

161

-

-

4,980

178

9,880

Mar.

161 

169

161

171

161

157

157

160

166

154

151

159

166

169

176

176

156

153

161

174

176

181

165

175

188

204

218

213

227 

230

227

5,462

176

10,830

Apr.

233 

242

274

343

443

526

680

771

812

889

848

894

960

1,110

1,180

1,190

1,280

1,390

1.450

1,400

1,290

1,160

1,100

1,090

1,010

984

983

1,160

1,200 

1,080

-

27,952

932

55,440

May

988 

927

920

957

1,080

1,260

1,480

1,630

1,630

1,690

1,880

1,900

1,700

1,510

1,380

1,420

1,650

1, 92.0

2,090

2,090

2,050

2,130

2,440

2,580

2,510

2,320

2,570

2.900

2,750 

2,350

2,050

56,752

1,831

112,600

June

1,820 

1,590

1,430

1,320

1,280

1,230

1,160

1,080

1,010

974

1,000

1,140

1,350

1,540

1,840

2,140

2.160

2,090

1,960

1,900

1,830

1,750.

1,520

1,400

1,390

1,360

1,320

1,350

Ij330 

1,290

-

44,554

1,485

88,370

July

1,300 

1,330

1,340

1.570

1,260

1,140

1,100

1,060

1,020

1,030

961

861

843

860

860

835

820

798

781

745

696

642

618

580

558

522

493

545

705 

567

532

26,772

864

53,100

Aug.

496 

460

481

786 622"

592

532

492

474

449

404

385

369

350

333

307

303

310

303

296

307

338

334

342

315

296

288

284

281 

281

281

12,091

390

23,980

Sept.

274 

266

260

245

237

232

229

230

229

234

234

253

262

255

249

244

240

240

235

231

231

232

231

228

225

229

222

214

212 212"

-

7,115

237

14, 110

Calendar year 1950: Max 1,850 Mln 99 Mean 435 Ac-ft 315,200

Water year 1950-51: Max 2,900 Mln 122 Mean 577 Ao-ft 417,500
108 MALAD RIVER BASIN

Big Wood River near Bellevue, Idaho

Location. Lat 43°19', long. 114°21', in sec. 20, T. IS., R. 18 E., on right bank if 

miles upstream from flow line of Magic Reservoir, 3 miles upstream from Camas Creek, 

and 10 miles southwest of Bellevue.

Drainage area. 823 sq mi.

Records available. July 1911 to September 1951 (no winter records prior to 1943 except 

1916, 1922, 1940-41).

Gage. Water-stage recorder. Altitude of gage is 4,800 ft (by barometer). Prior to July 

tT, 1921, water-stage recorder at site three-eighths of a mile downstream at different 

datum.

Average discharge.--13 years (1915-16, 1921-22, 1939-41, 1942-51), 281 cfs.

Extremes. Maximum discharge during year, 2,150 cfs May 29 (gage height, 4.73 ft); minimum, 48 cfs sometime during period Jan. 30 to Feb. 28 (gage height, 1.67 ft).

1911-51: Maximum discharge recorded, 3,660 cfs June 16, 1921 (gage height, 6.07 ft, 

site and datum then in use), from rating curve extended above 2,800 cfs; minimum recorded, 7 cfs Apr. 14, 1932 (gage height, 1.10 ft).

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

which are fair. Diversions for irrigation of about 36,400 acres above station. Storage above station is negligible.

Cooperation. Water-stage recorder inspected and four discharge measurements furnished by 

Water District No. 7 AB.

Rating tables, water year 1950-51, except periods of ice effect (gage

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

(Shifting-control method used May 22-29)

Oct. 1 to May 14 May 15 to Sept. 30

1.7 

2.0 

2.3 

2.6

53

113

195

310

3.0 

3.5 

4.2

535

925

1,640

3.0

120

204

515

3.5 

4.0 

4.5

920

1,420

1,990

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

89

98

95 

83

87

104

120

120

120

118

115

109

104

104

104

102

93

89

87

87

85

83

83

83

JLL

104

120

148

167

173

176

3,331

107

6,610

Nov.

173

170

164 

159

159

161

161

161

161

156

156

161

148

*153

150

150

164

195

195

195

209

192

183

176

173

170

170

170

167

183

-

5,085

170

10,090

Dec.

183

176

167 

170

167

161

173

167

167

167

167

167

164

*150

159

159

156

150

150

153

150

137

135

137

137

135

125

132

132

130

130

4,753

153

9,430

Jan.

120

125

125

111

104

75

91

90

90

90

90

90

90

90

95

75

70

67

66

60

60

60

60

*62

62

62

60

60

b55

55

55

2,465

79.5

4,890

Feb.

55

55

58 

60

100

' 90

_

-

-

2,498

89.2

4,950

Mar.

*87

85

79 

87

85

85

87

93

91

b85

b75

77

89

87

91

95

100

93

91

93

98

106

106

109

113

125

142

148

153

161

161

3,177

102

6,300

Apr.

183

2T2

237 

293

379

458

556

650

696

792

768

792

882

1,030

1,160

*1,180

1,190

,270

.530

,320

,250

,150

,060

*1,020 934

857

824

988

1,260

1,100

-

25,821

861

51,220

May

943

824

784 

792

866

997

1,220

1,390

1,420

1,420

1,500

1,610

1,520

*1,320

1,100

1,030

1,120

1,290

1,420

1,480

1,450

*1,420

1,570

1,730

1,770

1,730

1,770

1,990

2,070

1,910

1,650

43,106

1,391

85,500

June

1,430

1,150

938 

839

779

705

650

552

452

417

389

424

598

729

974

1,380

1.570

1,550

1,450

1,360

1,300

1,250

1,150

938

893

857

*796

804

788

796

-

27,908

930

55,350

July

911

938

920 

920

875

770

697

665

635

642

650

522

473

459

459

445

417

382

*356

331

318

306

278

272

272

245

*195

186

235

250

214

15,238

492

30,220

Aug.

190

*186

195 

337

556

331

301

255

230

210

190

170

155

130

100

98

101

104

124

151

140

136

140

155

159

155

143

128

120

120

124

5,434

175

10,780

Sept.

128

120

110 

110

114

114

104

94

86

91

98

*101

101

110

110

104

101

98

98

98

100

105

114

107

107

101

91

91

91

88

"

3,085

103

6,120

Calendar year 1950: Max 1,270 Mln 37 Mean 258 Ac-ft 186,900

Water year 1950-51 : Max 2,070 Mln 55 Mean 389 Ac-ft 281,500

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.--No gage-height record Dec. 31 to Jan. 3, Jan. 8-14, 16, 17, 20-23, Jan. 30 to Feb. 28, Aug 

10-12, 14, 15, Sept. 21, 22; discharge estimated on basis of weather records and records for Magic
MALAD RIVER BASIN 109

Camas Creek near Blaine, Idaho

Location. Lat 43°20', long. 114°33', in sec. IS, T. IS., R. 16 E., on left bank 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-£ miles upstream from backwater 

of Magic Reservoir, and 4 miles southeast of Blaine.

Drainage area. 648 sq mi (revised).

Records available.--May 1912 to September 1951 (no winter records prior to 1945). Discharge measurements only for 1922.

Gage. Water-stage recorder.

Average discharge. 7 years (1944-51), 164 cfs.

Extremes.--Maximum discharge during year, 7,470 cfs Apr. 9 (gage height, 13.46 ft); minimum, 4.2 cfs Sept. 20, 21 (gage height, 1.02 ft).

1912-51: Maximum discharge recorded, 9,780 cfs Apr. 8, 1943; maximum gage height, 

15.48 ft above Apr. 18, 1958, from floodmark; minimum discharge recorded, 1.5 cfs Aug. 

29, 1940.

Remarks. Records good except those below 10 cfs, which are fair, and those for periods, 

6T~no gage-height record, which are poor. Water diverted for irrigation of about 9,300 

acres above station. Plow regulated by Twin Lakes Reservoir on Lake Creek (capacity, 

31,240 acre-ft) and three minor reservoirs (combined capacity, 580 acre-ft).

Cooperation.--Pour discharge measurements and occasional inspections of recorded furnished by Water District No. 7 AB.

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

11 

12

11

2^8

11

11

11

11

10

10

10

10

9.8

9.8

9.8

11

11

10

10

10

10

10

11

11

11

14

15

19

25

24

21

380.2

12.3

754

Nov.

20 

20

19

18

18

17

17

17

*16

li

15

17

20

20

21

20

22

32

38

42

53

50

52

47

43

40

39

38

38

42

-

865

28.8

1,720

Dec.

44 

37

42

39

35

38

42

42

*38

38

35

1,130

36.5

2,240

Jan.

1 25

775

25.0

1,540

Feb.

 as

 70

 35

-

-

-

1,325

47.3

2,630

Mar.

' 35

50

80

*106

148

197

283

328

549

2,346

75.7

4,650

Apr.

370 

439

622

947

1,740

3,850

5,260

5,640

6.150

5,740

3,660

2,620

2,080

1,700

1,440

1,300

*1,220

1,110

1,010

926

856

789

730

*688

670

660

612

814

1,420

1,880

-

56,943

1,898

112,900

May .

1,560 

1,170

880

726

612

622

733

820

856

778

772

762

754

*705

641

580

547

529

526

517

497

*479

470

465

453

434

417

422

428

414

384

19,993

645

39,660

June

360 

323

288

262

246

239

228

207

189

172

152

146

128

146

146

141

143

136

*133

126

120

118

114

108

100

94

82

72

65

62

-

4,846

162

9,610

July

61 

55

53

53

55

53

47

45

46

41

36

*30

25

23

26

28

25

21

21

18

16

17

15

15

14

*11

10

11

10

11

9.8

901.8

29.1

1,790

Aug.

8.7 

8.4

14

59

49

32

28

25

20

15

15

11

*9.4

8.1

7.8

8.7

9.0

8.4

7.5

7 .2

6.3

6.3

22

14

11

9.4

8.4

7.8

7.8

7.8

7.8

459.8

14.8

912

Sept.

.8 

.5

.2

.9

.6

'.B .3

.4

.0

.8

.6

.6

* .6

.8

.6

.6

.6

.6

.6

.4

.4

.4

.4

.6

.8

.8

.8

.6

.8

.8

-

155.7

5.19

309

Calendar year 1950: Max 5,230 Min 3.7 Mean 232 Ac-ft 167,800

Water year 1950-51: Max 6,150 Mln 4.4 Mean 247 Ac-ft 178,700

Peak discharge (base. 500 cfs).--Apr. 9 (6:30 p.m.) 7,470 cfs (13.46 ft); Apr. 30 (5 a.m.) 2,140 

cfs (7.67 ft); May 9 (3 a.m.) 870 cfs (5.19 ft).

* Discharge measurement made on this day.

Note. No gage-height record Dec. 11 to Mar. 25, discharge estimated on basis of inflow-outflow 

studies for Magic Reservoir, weather records, and records for nearby streams.
110 MALAD RIVER BASIN

Magic Reservoir near Richfield, Idaho

Location Lat 43°15' , long. 114°22', in NE^SE^ sec. 18, T. 23., R. 18 E., at dam on Big 

Wood River and 18 miles northwest of Richfield.

Drainage area. 1,600 sq mi, approximately (revised).

Records available. --February to April 1909 (gage heights only), April 1909 to September 

1951.

Gage . Staff gage read once or twice daily. Datum of gage is 4,800 ft above datum of

 Idaho Irrigation Co., which is reported to be about 137 ft below mean sea level. Prior

to Apr. 1, 1937, tape gage or temporary staff gages at dam. Datum of gages prior to

Oct. 1, 1942, was 4,800 ft lower.

194,200 acre-ft Apr. 30 (gage height, 

e height, 108.7 ft).

1951; no storage for several

Extremes . Maximum contents observed during year, ,

 135.7 ft); minimum observed, 108,500 acre-ft Oct. 1-3 (g 

1909-51: Maximum contents observed, that of Apr. 30, 

days in 1909, 1919, 1920, 1924, 1928, 1935.

Remarks . Reservoir is formed by earth- and rock-fill dam, completed in 1909, and raised

 5 ft in 1917. Capacity, 191,500 aere-ft between gage heights 21.4 ft (2.9 ft above 

bottom of outlet pipe) and 135.0 ft (top of 5-foot f lashboards ) . Dead storage unknown. Water is used for irrigation of lands in Carey Act project of Big Wood Canal 

Co. Figures given herein represent usable contents including bank storage. Gage read 

in morning except during irrigation season when- it was read morning and evening; eontents computed from morning reading.

Cooperation. Gage readings and yield table furnished by Water District No. 7 AB.

Contents, in acre-feet, water year October 1950 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.

108, 500

108, 500

108,500

108,800

1O9,OOO

109, 300

109,600

110,100

110,300

110,600

110,800

111,100

111,400

111,600

111,600

111,900

112,100

112,400

112,400

112,600

112,600

112,900

112,900

113,200

113,200

113,400

113,700

113,900

114,200

114,700

115,000

Nov.

115, 300

115, 8OO

1 16.0OO

116,600

117,100

117,400

117,600

117,900

118,400

118,700

119,000

119,200

119,500

119,800

120,000

120, 300

120,900

121,400

121,900

122,500

123,000

122,700

122,200

121,700

122,200

122,500

123,000

123,300

123,800

124,400

-

Dec.

124,700

125,200

126,000

126,300

126,900

127,200

127,700

128,300

128,500

129,100

129,400

129,700

130,200

130, 500

-

_

_

_

-

-

.

_

_

_

-

_

_

.

_

_

-

Jan. Feb.

_

_

_

_

-

.

_

_

_

-

.

_

_

_

-

_

_

_

_

146,900

147,200

147,500

147,800

148,100

148,500

149,100

149,400

149,700

_

_

-

Mar.

150,100

150, 400

150,400

150, 100

149,100

148,500

147,800

146,900

146,200

144,700

143,500

142,500

141,300

140,400

133,900

135, 400

136,500

135,400

134,800

133,300

131,900

130,200

129,400

128,300

127,700

127,400

127,400

127,200

127,200

127,700

128,000

Apr.

128,500

129,100

129,900

132,800

136,200

139,200

153,300

164,800

175, 5OO

185,300

192,300

193,500

192,300

191,500

190,700

189,900

189,200

189,200

188,800

188,800

188,400

187,600

190,700

192,700

192,300

191,500

191,500

191,500

193,100

194,200

-

Hay

193, 500

191,900

190,700

191,500

191,900

192,300

193, 100

193,500

193,500

193,100

192,700

192,300

192,300

192,300

191,900

191,500

191,900

192,300

192,300

192,700

193,100

193,100

192,700

192,700

192,700

192,700

192,700

192,700

192,700

192,700

192,700

June

192,700

191,500

191,500

191,500

191,500

191,500

191,100

190,700

190,300

190,300

189,900

189,500

189,200

189,200

189,200

190,300

191,500

192,700

192,700

192,700

192,700

192,700

192,300

192,300

192,300

192,300

191,900

191,900

191,900

191,900

-

July

191,500

191,500

192, 300

192,300

192,300

192,300

191, 9OO

191,500

191,100

190,700

190,300

189,900

189,200

188, 800

187,600

187,200

186,400

185, 700

184, 500

183, 800

183,000

181,500

180,000

178,900

178,100

177,400

175,500

174,100

172, 600

171,500

170,100

Aug.

169,000

167,600

166,200

165,100

164,200

163,400

163,000

162,000

161,300

160,300

160, 000

158,900

157,600

156,600

155, 300

154,300

153,300

152,000

151,300

150, 400

149,700

148, 800

147,800

146,900

145,900

145, 300

144,700

144,100

142,800

141,900

141,000

Sept.

140, 400

140, 100

139,200

138,300

137,400

136,500

135,700

' 34, 800

133,600

132,800

131,900

131, 100

129,900

129, 400

128,500

127,700

127,200

126,000

125,200

124, 400

123,600

122,700

121,900

121, 100

120,300

119,500

119,000

118,400

117,600

116,800

-

Monthly gage height and contents, water year October 1950 to September 1951

Date

Calendar year 1950 ......

Peb. 28. ..................

Mar. 31. ..................

May 31 ...................

Aug . 31 ...................

Water year 1950-51......

Gage height 

(feet)

-

-

Contents 

(acre-feet)

-

-

Change In contents 

during month 

(acre-feet)

-

-1-8,300
M/VLAD RIVER BASIN 111

Big Wood River below Magic Dam, near Richfield, Idaho

Location. Lat 43°14' , long. 114°22' , in sec. 18, T. 2 S., R. 18 E., on right bank half a 

mile downstream from Magic Dam and 18 miles northwest of Richfield.

Drainage area. 1.600 sq ml, approximately. 

Records available. April 1911 to September 1951. 

Gage. Water-stage recorder. 

Average discharge. 39 years (1912-51), 408 cfs.

Extremes. Maximum discharge during year, 4,230 cfs Apr. 12 (gage height, 9.33 ft); minimum, 11 cfs Nov. 25-27, Dec. 4 (gage height, 1.16 ft).

1911-51: Maximum discharge, 7,160 cfs Apr. 13, 1943 (gage height, 13.31 ft); no flow 

Feb. 3, 1915.

Remarks. Records good. Water diverted for Irrigation of about 47,100 acres above station. 

Flow regulated by Magic Reservoir (see preceding page) , Twin Lakes Reservoir on tributary of Camas Creek (capacity,, 31,240 acre-ft), and minor reservoirs having combined 

capacity of about 680 acre-ft.

Cooperation. Water-stage recorder Inspected and five discharge measurements furnished by 

Water District No. 7 AB.

Rating table, water year 1950-51 (gage height, in feet, and discharge, 

in cubic feet per second)

1.3 

1.6 

1.9

2.5

3.0 

3.5 

4.0 

5.0

149

275

470

735

1,310

1,96O 

2,620 

3,290 

4,060

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

17

17

17

17

16

16

16

16

*16

16

16

L6

16

16

16

15

15

15

15

15

15

15

15

14

14

14

14

14

14

14

14

476

15.4

944

Nov.

14

14

14

14

14

14

14

14

14

14

*14

14

14

14

14

14

14

14

13

125

355

408

408

191

11

11

11

12

12

12

1,821

60.7

3,610

Dec.

12

12

12

12

12

12

12

12

12

12

12

12

12

*12

12

12

12

12

12

12

12

12

12

12

13.

13

13

13

13

13

13

379

12.2

752

Jan.

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

12

12

12

13

13

13

13

394

12.7

781

Feb.

13

_

_

-

364

13.0

722

Mar.

13

14

301

495

495

495

614

718

718

718

713

713

746

806

818

818

818

812

812

806

806

801

801

600

470

470

*470

470

470

357

292

18,450

595

36,600

Apr.

282

282

282

282

285

292

298

692

1,920

2,320

3,320

*4.030

3,590

3,200

2,970

2,800

2,650

2,560

2,500

2,420

2,350

1,080

447

1,740

*1,970

1,600

1,490

1,740

2,450

3,200

-

55,042

1,835

109,200

May

3.200

2,740

1,860

1.150

1,160

1,250

1,680

2,380

2,480

2,390

2,340

2,370

2,340

2,270

1,900

1,370

1,580

1,750

1,760

1,850

2,060

2,080

2,070

2,140

2,200

*2,300

2,340

2,330

2,360

2,380

2,300

64,380

2,077

127,700

June

1.970

1,440

1,310

1,230

1,110

1,050

1,040

1,020

856

801

*784

812

828

823

790

790

1,080

1,430

1,440

*1,440

1,430

1,390

1,170

1,100

988

922

894

889

845

840

-

32,512

1,084

64,490

July

862

878

867

884

894

867

878

840

828

806

779

768

779

790

796

818

823

*823

834

845

845

850

850

850

862

889

900

*900

900

900

900

26,305

849

52,180

Aug.

862

845

845

823

818

801

757

735

730

696

669

669

658

630

*614

614

614

614

614

614

614

598

581

581

576

555

550

550

555

550

550

20,482

661

40,630

Sept.

560

565

560

560

560

560

560

560

560

560

560

*555

550

550

550

545

545

530

515

515

515

530

535

505

490

490

510

510

505

243

-

15,853

528

31,440

Calendar year 1950 : Max 2,030 Min 7 Mean 446 Ac-ft 322,700

Water year 1950-51 : Max 4,030 Min - Mean 648 Ac-ft 469,000

* Discharge measurement made on this day.

Note. No gage-height record Jan. 29 to Mar. lj discharge estimated on basis of record of operation 

of gates in dam.
112 MALAD RIVER BASIN

Little Wood River at Campbell Ranch, near Carey, Idaho

Location. Lat 43°28', long. 114°03' , in SW£NW£ sec. 35, T. 2 N. , R. 20 E., on left bank 

 at Campbell Ranch, above flow line of Little Wood Reservoir, lj 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 sq ml.

Records available . February 1920 to September 1926 (published as "near Carey"), March 1941 

to December 1942, April 1944 to September 1951 (no winter records except 1921-24, 1926). 

Other records published as "near Carey" are at site 6 miles downstream and are not equivalent owing to diversion and inflow.

£. Water-stage recorder. Altitude of gage is 5,250 ft (by barometer). 

944, at site 650 ft downstream at datum 3.50 ft lower.

Gage Prior to April

Average discharge. 5 years (1920-24, 1925-26), 152 cfs.

Extremes. Maximum discharge during year, 1,000 cfs Apr. 29 (gage height, 3.48 ft); minimum 

recorded, 40 cfs Oct. 21 (gage height, 1.03 ft).

1920-26, 1941-42, 1944-51: Maximum discharge recorded, 1,570 cfs Apr. 21, 1950 (gage 

height, 4.37 ft); minimum recorded, 14 efs Aug. 29, 30, 1926.

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

Flow slightly regulated by Campbell Reservoir (capacity, 125 acre-ft, revised, prior to 

1938 when dam failed capacity was 2,700 acre-ft) on tributary. Diversions for irrigation 

of about 5,250 acres above station..

Cooperation. Water-stage recorder inspected by Little Wood Reservoir Co. and Water District No. 110.

Revisions. W 633: Drainage area.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.0 

1.2

1.5

2.0 

2.5 

3.2

240

428

810

Discharge, In cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Oct.

52

55

55

*55

55

57

54

54

53

53

53

52

51

51

53

53

52

52

52

51

53

54

52

51

52

57

63

72

76

82

80

1,755

56.6

3,430

Nov.

73

70

67

67

70

70

67

66

57

5_3

60

62

62

*62

55

62

65

76

75

78

33

73

70

67

69

72

72

69

67

72

-

2,031

67.7

4,030

Dec.

73

55

62

72

62

62

69

69

63

69

67

*69

55

59

65

65

58

53

58

62

55

48

55

60

50

45

40

58

62

62

55

1,857

59.9

3,680

Jan.

_

_

-

Feb.

_

_

-

Mar.

66

68

*70

68

68

67

67

67

66

62

55

56

62

68

72

73

70

65

63

70

77

80

78

80

87

113

129

122

124

120

120

2,453

79.1

4,870

Apr,

151

200

262

339

393

490

636

614

608

545

*447

452

495

555

540

495

495

510

500

475

437

388

364

359

332

328

339

505

756

515

-

13,525

451

26,830

May

433

388

372

372

397

437

550

597

592

570

592

592

555

495

456

*447

490

565

602

592

580

592

624

636

597

555

602

672

624

525

452

16,553

534

32,830

June

410

359

316

288

278

268

256

24O

228

225

228

*265

302

316

364

415

415

372

355

343

324

313

271

243

246

249

243

249

246

231

-

8,856

295

17,570

July

234

231

223

234

220

197

194

191

183

189

186

170

159

164

161

154

146

*144

146

138

129

118

109

109

107

107

105

122

122

116

107

4,915

159

9,75O

Aug.

100

96

94

164

122

107

101

98

92

88

82

76

73

69

66

60

58

55

55

55

57

62

65

73

69

65

*62

62

60

62

60

2,408

77.7

4,780

Sept.

59

58

55

54

53

52

51

49

47

48

48

49

49

48

47

46

45

45

45

44

46

49

51

49

49

53

52

53

53

52

-

1,499

50.0

2,970

Calendar year : Max Mln Mean Ac -ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

Note.--No gage-height record Dec. 16-31, Mar. 1, 2, 4-24; discharge estimated on basis of weather 

ecords and records for station near Carey and South Pork Boise River near Peathervllle.
MALAD RIVER BASIN 113

Little Wood River near Carey, Idaho

Location. Lat 43°23' , long. 114°00 I , in E^ sec. 30, T. IN., R. 21 E., on right bank 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 sq mi.

Records available. April 1904 to May 1905, September 1926 to September 1951. February 

1920 to September 1926 at site 6 miles upstream; records not equivalent owing to diversion and inflow.

Gage. Water-stage recorder. Altitude of gage is 5,010 ft (by barometer). Apr. 28, 1904, 

to May 31, 1905, staff gage, Sept. 20, 1926, to Apr. 19, 1938, water-stage recorder and 

Apr. 23 to Aug. 17, 1938, staff gage, all at about same site at datum 0.74 ft higher.

Average discharge. 22 years (1926-27, 1929-42, 1943-51), 130 cfs.

Extremes.--Maximum discharge during year, 1,090 cfs Apr. 29 (gage height, 5.82 ft); minimum, 

3 cfs Dec. 29 to Feb. 7, Feb. 19; minimum gage height, 1.90 ft Jan. 16, 17, 25, 29.

1904-5, 1926-51: Maximum discharge, 6,000 cfs (due to failure of reservoirs on Little 

Fish Creek) Apr. 20, 1938 (gage height, 12.07 ft, datum then in use, from floodmark), 

from rating curve extended above 1,800 cfs; minimum, 1 cfs 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 cfs, which are poor. Diversions for irrigation of 

about 6,450 acres above station. Storage in Little Wood Reservoir (capacity, 11,700 

acre-ft) began Feb. 12, 1941. Flow is also affected by Campbell, Cameron, and Howard 

Reservoirs (combined capacity, 690 acre-ft) on South Fork Muldoon and Little Fish Creeks.

Cooperation. Water-stage recorder inspected by Little Wood Reservoir Co. and Water Distrier wo. 11C.

Rating table, water year 1950-51, except periods of Ice effect (gage

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

(Shifting-control method used Nov. 4 to Feb. 26)

2.3 

2.6 

£.9 

3.2

56

101

163

3.6 

4.0 

4.5 

5.0 

5.5

261

379

557

758

969

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

a!50

a!90

a!90

*188

179

165

148

105

75

61

56

55

54

54

55

56

56

55

54

54

54

55

55

55

55

57

62

69

78

81

81

2,702

87.2

5,360

Nov.

81

76

70

68

70

81

76

69

61

±8

59

64

64

*64

56

62

66

78

81

78

§1

80

75

70

70

70

72

70

69

72

-

2,107

70.2

4,180

Dec.

I±

b60

60

70

61

57

b65

68

61

62

48

*32

b32

b32

b32

b25

bll

blO

10

b8

b5

b5

bS

b5

b5

b5

b4

4

4

3

b3

926

29.9

1,840

Jan.

b3

3

3

3

3

3

b3

b3

b3

b3

b3

b3

b3

3

3

3

3

3

b3

3

3

b3

3

3

3

*3

b3

b3

b3

b3

b3

93

3.0

184

Feb.

b3

b3

b3

b3

b3

b3

b3

4

4

4

5

6

b6

b6

bS

bS

b5

4

b4

b4

4

b4

4

4

4

14

27

bE7

.

_

-

171

6.1

339

Mar.

b42

70

*81

81

80

78

78

74

66

b57

b47

b47

47

b54

62

b70

b78

b78

b78

78

81

82

b81

84

86

92

98

96

96

96

96

2,334

75.3

4,630

Apr.

114

130

141

150

152

152

515

705

729

729

569

*534

573

644

620

561

534

542

538

527

493

439

402

392

379

357

369

519

948

652

-

14,109

470

27,980

Hay

515

450

415

402

415

439

530

632

628

604

604

628

596

542

523

*464

493

557

604

612

608

608

636

652

628

584

604

668

660

573

489

17,363

560

34,440

June

450

396

347

311

294

285

272

256

243

252

232

*253

302

317

353

405

419

396

366

347

326

317

285

253

243

'240 243

243

243

235

-

9,104

303

18,060

July

232

232

225

228

222

205

198

188

181

181

188

174

161

156

172

215

235

*266

274

272

258

272

269

258

258

272

258

251

232

205

186

6,924

223

13,730

Aug.

165

148

139

135

130

118

116

112

101

107

118

122

135

143

161

172

168

165

161

161

156

148

133

130

122

118

*118

109

96

84

69.

4,060

131

8,050

Sept.

62

65

87

101

96

91

89

89

89

82

82

82

98

103

105

103

103

101

101

98

94

92

89

84

81

69

59

56

56

55

-

2,562

85.4

5,080

Calendar year 1950: Max 1,400 Mln - Mean 168 Ac-ft 121,400

Water year 1950-51: Max 948 Mln 3 Mean 171 Ac-ft 123,900

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of reported gate changes for Little Wood Reservoir and recorded range In stage.

b Stage-discharge relation affected by Ice.
114 MALAD RIVER BASIN

Sliver Creek near Picabo, Idaho

Location. Lat 43°17', long. 114°01' , In see. 1, T. 2 S., R. 20 E., on left bank lj miles 

downstream from drain ditch of Blaine County Drainage District No. 1 and 3 miles southeast of Picabo.

Drainage area. 88 sqmi, approximately.

Records available.--May 1920 to September 1951 (1922-35, irrigation seasons only). 

Gage.--Water-stage recorder. Altitude of gage is 4,790 ft (by barometer). 

Average discharge. 18 years (1920-22, 1935-51), 150 cfs.

Extremes. Maximum discharge during year, 278 cfs Apr. 6 (gage height, 3.14 ft); maximum 

gage height, 3.95 ft Feb. 1 (ice jam); minimum discharge, 76 cfs Mar. 10; minimum gage 

height, 1.07 ft May 31.

1920-51: Maximum discharge, 312 cfs Apr. 3, 1923 (gage height, 3.29 ft); maximum 

gage height, 4.57 ft Jan. 22, 1950 (ice jam); minimum discharge, 26 cfs June 2, 1920 

(gage height, 0.48 ft).

Remarks. Records good except those for periods of ice effect, which are poor. Diversions 

for irrigation of about 9,000 acres above station. Two small canals bypass station. 

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. Silver Creek receives 

considerable return flow resulting from Big Wood River irrigation.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Total

Mean

Ac-ft

Oct.

200

201

2OO

196

200

202

203

201

201

201

199

197

197

197

198

198

199

199

198

197

193

195

198

198

200

2O4

205

209

212

215

210

6,223

201

12,340

Nov.

210

2O6

2O3

203

204

202

201

199

197

194

189

190

193

*195

191

19O

193

206

219

255

232

234

227

213

206

203

201

200

196

197

-

6,129

204

12,160

Dec.

203

207

201

198

196

194

199

200

194

194

194

*194

193

191

188

187

185

184

183

182

181

179

178

176

175

173

171

171

171

172

170

5,784

187

11,470

Jan.

164

17O

170

170

17O

160

165

170

170

170

170

16O

165

171

169

167

173

173

169

140

160

170

170

170

*170

168

167

151

128

120

120

5,O3O

162

9,980

Feb.

130

150

ISO

180

180

180

ISO

180

184

183

184

184

180

174

173

173

171

170

167

166

166

165

167

167

165

163

162

159

.

.

-

4,783

171

9,49O

Calendar year 1950 : Max 258 Min 86

Mar.

158

*161

159

158

162

158

159

159

159

157

180

167

159

159

161

165

166

161

16O

160

163

171

169

173

185

201

219

230

231

229

227

5,404

174

10,720

Apr.

228

242

256

264

269

273

264

251

236

220

*205

192

185

178

171

167

164

161

156

151

150

149

ISO

151

153

153

154

162

197

223

-

5,875

196

11,650

May

211

183

170

164

161

158

163

172

178

178

170

167

166

164

162

*160

155

147

134

128

124

111

1O1

94

91

85

84

108

104

95

88

4,376

141

8,680

June

97

98

1O2

102

102

104

113

120

124

128

134

134

138

145

156

147

137

133

134

*14O

142

147

160

164

166

162

159

161

172

170

-

4,O91

136

8,110

July

164

169

175

189

195

192

187

179

180

177

180

194

203

197

195

187

186

175

176

172

167

170

181

181

166

*170

167

166

182

202

2O2

5,626

181

11,160

Aug.

188

184

190

201

208

220

225

224

229

223

222

224

220

216

206

209

209

206

201

204

212

215

214

216

225

226

223

216

215

218

221

6,61O

213

13,110

Sept.

222

225

223

217

215

213

212

211

2O8

2O7

213

210

2O9

*2O6

203

204

2OO

195

198

2O1

201

200

204

208

2O3

202

2O3

2O6

207

209

-

6,235

208

12,370

Mean 169 Ac-ft 122,700

Water year 1950-51 : Max 273 Min 84 Mean 181 Ac-ft 131, 2OO
MALAD RIVER BASIN 115

Little Wood River near Richfield, Idaho

Location. Lat 43°03' , long. 114"08', in sec. 30, T. 43., R. 20 E., on right bank 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.

Drainage area. 570 sq mi, approximately.

Records available. January 1911 to September 1951 (irrigation seasons only).

Gage. Water-stage recorder. Altitude of gage is 4,270 ft (by barometer). Prior to Sept. 

5", 1918, staff gage at present site at datum 1.80 ft lower. Sept. 5, 1918, to Apr. 13, 

1920, staff gage at present site and datum.

Extremes. Maximum discharge during year, 374 cfs Apr. 30, May 1 (gage height, 2.49 ft); 

minimum recorded, 72 cfs June 7, 8 (gage height, 1.37 ft).

1911-51: Maximum discharge recorded, 868 cfs May 3, 1938 (gage height, 3.97 ft); 

minimum recorded, 7.6 cfs June 24, 25, 1920 (gage height, 0.52 ft).

Remarks.--Records good. Diversions for irrigation of about 38,300 acres above station. 

Flow partly regulated by Little Wood Reservoir (capacity, 11,700 acre-ft), Pish Creek 

Reservoir (capacity, 13,700 acre-ft), and three small reservoirs on tributaries (combined capacity, 690 acre-ft). River above Silver Creek is dry a large part of the time 

because of channel losses and irrigation diversions above Carey.

£ooperation.--Water-stage recorder graph and four discharge measurements furnished by Water 

District No. 11 AB.

Rating table, water year 1950-51 (gage height, in

feet, and discharge, in cubic feet per second)

(Shifting-control method used Oct. 1-14)

Oct. 1 to Dec. 5 Mar. 25 to Sept. 30

1.8

1.9 

2.1

158

180

232

1.3 

1.7 

2.0 

2.5

62

136

214

377

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

162

16?

165

167

167

167

167

169

169

169

167

165

165

165

169

169

169

171

171

171

169

171

169

169

171

176

180

182

188

190 T9o~

5,301

171

10,510

Nov.

188

188

188

iSa" 185

188

190

190

190

188

190

188

188

190

*188

188

185

195

195

208

513" 216

213

208

200

195

190

190

190

190

5,803

193

11,510

Dec.

188

190

195

192

188

_

_

_

_

-

_

_

_

_

-

_

_

-

.

_

_

_

-

_

_

_

_

-

_

_

-

Jan.

_

-

-

Feb.

_

_

-

Mar.

_

_

_

_

-

_

_

.

_

-

.

_

_

_

-

_

_

_

-

_

_

_

_

176

189

200

214

220

220

217

_

_

-

Apr.

214

217

223

229

241

257

254

266

299

316

323

302

386

*279

276

266

257

244

235

232

229

326

220

214

*217

214

§08" 203

235

545

7,525

251

14,930

May

316" 367

270

247

238

255

232

254

*283

289

286

279

276

275

270

250

244

244

255

252

229

214

168

148

121

110

*96

87

114

123

114

6,844

221

13,570

June

116

125

116

118

96

80

7272-

89

91

91

*98

98

100

106

102

94

92

91

91

*100

102

110

114

116

125

1ST

121

121

123

3,089

105

6,130

July

121

118

132

156

146

143

146

141

141

143

146

148

155

ISO- 158

146

132

129

123

123

*125

125

125

*129

127

114

116

125

116

129

156

4,140

134

8,210

Aug.

156

125

125

127

136

141

153

158

165

173

175

176

175

170

165

148

150

150

150

146

150

150

150

150

155

146

155

155

155

150

155

4,705

152

9,530

Sept.

163

160

168

168

165

163

168

168

168

168

*168

173

170

170

165

163

163

160

158 160"

165

163

165

165

175

170

170

170

170

168

-

4,986

166

9,890

Calendar year : Max Min Mean Ae-ft

Water year : Max Mln Mean Ae-ft

Discharge measurement made on this day.
116 MALAD RIVER BASIN

Little Wood River at Shoshone , Idaho

Location. Lat 42°56', long. 114°24' , in sec. 2, T. 6 S., R. 17 E., on left bank just upstream from diversion dam for town water supply and 400 ft upstream from highway bridge 

in Shoshone.

Drainage area. 620 sq mi, approximately.

Records available. April 1922 to September 1951 (irrigation seasons only).

Gage. Water-stage recorder. Datum of gage is 3,958.97 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947.

Extremes . --Maximum discharge during year, 549 cfs Aug. 14, 15 (gage height, 3.47 ft); minimum recorded, 43 cfs Oct. 12 (gage height, 0.66 ft).

1922-51: Maximum discharge recorded, 664 cfs June 18, 1922 (gage height, 2.26 ft);, 

maximum gage height recorded, 4.49 ft June 11, 1944; practically no flow July 29, 1931, 

Oct. 3, 1938.

Remarks . Records good. Diversions for irrigation of about 52,200 acres above station. 

Flow affected by operation of Milner-Gooding Canal, which diverts from Snake River and 

crosses Little Wood River above station, by operation of five reservoirs above Carey 

(see remarks for station "near Richfield") , 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 five discharge measurements furnished by Water 

District No. 11 AB.

Rating table, water year 1950-51 (gage height, in feet, and discharge, 

in cubic feet per second)

159

272

362

2.1 

2.5 

3.0 

3.5

413

461

511

551

Discharge, in cubic feet per second, water year October 1950 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

3O

31

Total

Mean

Ac- ft

Oct.

~G2 122

52

46

46

44

46

48

48

48

46

48

50

*54

58

60

62

64

64

62

64

62

58

58

58

60

67

69

64

67

69

1,826

58.9

3,620

Nov.

67

69

69

64

64

67

64

62

60

60

69

69

73

71

*71

75

73

82

85

88

98

98

144

162

159

92

78

75

75

75

-

2,458

81.9

4,880

Dec.

73

_

_

-

Jan.

_

_

-

Feb.

_

_

-

Mar.

_

_

_

_

-

_

_

.

-

_

_

_

_

-

131

128

125

131

125

144

284

239

176

212

260

292

239

208

193

186

_

_

-

Apr.

183

176

183

190

190

201

201

197

220

243

256

256

239

*223

220

216

208

216

260

260

284

320

347

347

*337

398

473

475

491

484

-

8,294

276

16,450

May

433

449

416

436

442

422

472

508

496

482

473

478

494

490

474

457

452

449

449

434

462

465

442

440

443

456

*465

482

500

507

503

14,371

464

28,500

June

§11

523

520

519

517

511

515

525

518

521

520

517

519

515

519

519

512

*514

515

515

*516

521

529

526

525

528

529

525

523

528

-

15,595

520

30,930

July

529

531

529

528

554

533

532

525

517

514

517

518

514

503

489

486

481

487

486

479

480

482

*480

*492

498

497

492

495

505

494

498

15,645

505

31,030

Aug.

496

490

482

486

512

520

533

537

537

544

*5_46

538

535

545

532

510

493

478

474

475

478

487

495

491

489

488

461

433

427

425

427

15,364

496

30,470

Sept.

427

425

427

431

438

449

438

428

417

436

*457

453

472

482

476

459

443

460

454

451

440

468

480

491

478

436

427

448

460

344

-

13,395

446

26,570

Calendar year : Max Min Mean Ac-ft

Water year : Max Mln Mean Ac-ft

Discharge measurement made on this day.
MALAD RIVER BASIN 117

Malad River near Goodlng, Idaho 

(Formerly published as Big Wood River near Goodlng)

Location.--Lat 42°54' , long. 114°48', In sec. 21, T. 6 S., R. 14 E., on right bank at 

Hudson Ranch, 2 miles downstream from bridge on Bliss-Gooding highway, 3-| miles downstream from confluence of Big Wood and .Little Wood Rivers, 5 miles upstream from diversion dam for King Hill project, and 6 miles southwest of Gooding.

Drainage area. 2,990 sq mi, approximately.

Records available.--March 1916 to September 1951 (fragmentary 1922-37, 1941, 1942). Prior 

to October 1950, published as Big Wood River near Gooding.

Gage. Water-stage recorder. Altitude of gage is 3,345 ft (from topographic map). Prior 

To Apr. 13, 1921, staff gage at same site and datum.

Average discharge. 19 years (1916-22, 1937-41, 1942-51), 211 cfs.

Extremes.--Maximum discharge during year, 3,410 cfs Apr. 13 (gage height, 8.66 ft); minimum, 11 cfs Oct. 19, 23-26; minimum gage height, 0.88 ft Oct. 24; minimum daily dis1916-51: Maximum discharge, 5,220 cfs Apr. 14, 1943 (gage height, 9.80 ft); no flow 

at times in many years.

Remarks. Records good except those for periods of ice effect, which are poor. Diversions 

for irrigation of about 155,000 acres above station. Plow regulated by Magic-Reservoir 

(see p. 110) and by several smaller reservoirs on tributaries, and affected by 

deliveries from canals diver-ting from Snake River at Milner.

Cooperation. One discharge measurement furnished by Water District No. 7 AB.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

0.9

1.0 

1.2 

1.4 

1.7

£.0 

2.5 

3.0 

4.0 

5.0

109 

180 

£58 

450 

752

6.0 

7.0 

8.0 

8.6

1,160

1,780

2,650

3,340

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

£

3

4

5

6

7

8

9

10

11

1£

13

14

15

16

17

18

19

£0

£1

ZZ

23

£4

£5

26

27

£8

£9

30

31

Total

Mean

Ac- ft

Oct.

193

148

130

145

15£

141

136

157

16£

186

190

184

144

123

104

44

15

13

1£

1£

1£

13

13

1£ri

8£

90

113

131

134

133

3,134

101

6,2£0

Nov.

1£9

138

1£4

117

116

113

116

113

*108

104

106

119

136

150

145

144

15£

157

161

168

165

168

166

££4

£58

£45

176

151

148

15£

-

4,469

149

8,860

Dec.

150

144

148

188

220

190

180

£55

208

19£

*19£

184

178

177

15£

1£9

171

158

1£3

130

176

166

164

168

171

170

155

177

174

194

138

5,322

17£

10,560

Jan.

136

150

157

137

137

90

70

80

95

120

115

115

115

115

115

1£0

120

130

110

90

110

1£0

110

113

147

*150

15£

110

85

75

80

3,569

115

7,080

Feb.

100

130

160

230

£90

£80

54£

gl,340

gl,£80

1,040

1.580

1,140

654

3£6

268

£13

155

166

131

134

140

1£3

143

177

190

170

189

1£6

_

-

-

11,417

408

2£,650

Mar.

*1£9

162

137

192

182

152

164

27£

4£3

364

40£

406

450

458

510

776

614

595

574

6£0

718

945

823

801

759

70£

784

6£6

550

513

455

15, £58

49£

30, £60

Apr.

328

334

394

402

376

360

423

508

596

*1,740

£,130

3,000

3. £90

2,870

£,490

£,4£0

£,260

2, £00

2,190

£,130

1,990

1,970

899

455

1,550

*1,390

1,110

1,100

1,610

£,000

-

44,515

1,484

88, £90

Calendar year 1950: Max 1,300 Mln 11 Mean £21

May

2.480

2,400

£,000

1,3£0

76£

7£8

766

1,140

1,8£0

1,800

1,660

1,660

1,770

1,730

1,690

1,360

879

871

977

914

933

1,040

973

9£9

941

*918

990

1,000

1,010

Si, 120

gl,160

39,741

1,28£

78,830

June

gl.080

g8£3

g54£

404

355

£70

£18

247

237

196

16£

147

186

£00

£07

£08

19£

190

545

65£

*639

636

604

483

382

351

£40

208

166

161

-

10,931

364

21,680

July

15£

155

155

145

138

141

g!41

gl!9

gllO

g!05

96

99

95

77

59

38

£9

£0

23

*££

£8

39

46

*43

48

40

36

39

66

7£

76

2,45£

79.1

4,860

Aug.

83

83

7£

69

88

102

108

122

157

158

164

143

1£3

116

112

108

73

61

64

56

56

48

52

60

63

5£

54

66

58

5£

50

2,673

86.2

5,300

Sept.

58

75

81

6£

58

61

59

50

50

56

*60

63

73

133

192

196

196

186

188

157

155

157

194

188

210

£08

195

£1£

£36

£52

-

4,061

135

8,050

Ac-l't 160,000

Water year 1950-51: Max 3,290 Mln 11 Mean 404 Ac-ft £92,600

* Discharge measurement made on this day.

g Computed from once-daily staff-gage reading.

Note. Stage-discharge relation affected by Ice Jan. 6-23, Jan. £8 to Feb. 6.
118 MALAD RIVER BASIN

King Hill Canal near Hagerman, Idaho

Location. Lat 42°52' , long. 114°55', In SW£ sec. 27, T. 6 S. , R. 13 E. , on left bank 

above entrance to Inverted siphon crossing Snake River, half a mile west of highway 

bridge over Big »food River and 3-| miles north of Hagerman.

Records available. March 1930 to September 1951 (irrigation seasons only 1930-37, 1940-45).

Gage. Water-stage recorder. Altitude of gage is 2,850 ft (by barometer). Prior to Apr. 

I, 1948, staff gage at site 400 ft upstream at datum 1.95 ft higher. Apr. 1, 1948, to 

May 22, 1951, staff gages at present site at different datura prior to Apr. 12, 1949, 

and at present datum thereafter. Supplementary gage 500 ft downstream from siphon 

efflux used June 1, 1949, to May 22, 1951.

Extremes. 1930-51: Maximum daily discharge, 340 cfs June 2, 1948; no flow or small flow 

from leakage at headgate during nonirrigation seasons and other periods when gates were 

closed.

Remarks. Records excellent except those below about 200 cfs, which are fair. This canal, 

which is operated by King Hill Irrigation District to provide water for irrigation of 

about 10,000 acres, 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.

Thirteen discharge

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

243

256

251

102

107

50

50

55

50

39

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1,203

38.8

2,390

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

140

199

230

230

230

230

*226

250

250

250

250

250

260

262

295

*288

289

289

289

295

-

5,002

167

9,920

May

288

238

286

286

285

285

283

283

282

282

286

281

279

273

272

272

270

325

324

317

316

316

*319

320

322

322

320

317

315

315

313

9,242

298

18,330

June

*311

311

311

310

310

310

311

310

310

310

311'

311

311

311

*311

266

310

310

311

310

79

8

271

303

*306

313

313

313

*315

317

8,704

290

17,250

July

319

317

*308

306

306

308

308

310

*311

311

"311

311

*311

311

315

*319

317

315

313

311

*310

306

*306

306

306

304

304

306

304

306

306

9,602

310

19,050

Aug.

310

310

311

316

313

*298

298

298

298

298

298

237

1

19

*243

313

306

310

311

311

311

311

311

313

310

301

301

301

*301

301

301

8,761

283

17,380

Sept.

*301

301

304

304

306

303

*301

299

299

299

292

291

*286

280

280

280

280

280

280

280

*280

280

280

282

284

284

286

*287

287

260

-

8,656

289

17,170

Calendar year 1950: Max 338 Mln 0 Mean 137 Ao-ft 99,220

water year 1950-51: Max 325 Min 0 Mean 140 Ao-ft 101,500

* Discharge measurement made on this day.

Note. Discharge Oct. 1-10, Apr. 11 to May 22 computed on basis of gage-height record at supplementary gage.
SNAKE RIVER MAIN STEM 119

Snake River at King Hill, Idaho

Location.--Lat 43°00', long. 115°11', in SW£ sec. 7, T. 5 S., R. 11 E., on right bank 300 

ft east of railroad station at King Hill and 20 miles downstream from Big Wood (Malad) 

River.

Drainage area.--35,800 sq mi, approximately. 

Records available.--May 1909 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,492.3 ft above mean sea level, by stadia 

"levels. May 13, 1909, to Mar. 1, 1910, staff gage on left bank at datum 2.20 ft higher. 

Mar. 7 to Aug. 16, 1910, staff gage three-quarters of a mile upstream at different 

datum. Aug. 17, 1910, to Oct. 7, 1928, staff gage at present site and datum.

Extremes.--Maximum discharge during year, 25,600 cfs Apr. 16 (gage height, 11.50 ft); 

minimum observed, 2,030 cfs Oct. 1 (gage height, 2.64 ft); minimum daily, 5,270 cfs 

July 8.

1909-51: Maximum discharge observed, 47,200 cfs June 22, 1918 (gage height, 16.3 

ft), from rating curve extended above 30,000 cfs; minimum observed, 1,250 cfs Jan. 10, 

1950 (gage height, 1.75 ft); minimum daily, 4,760 cfs July 7-9, Aug. 15, 16, 1910.

Remarks.--Records excellent. Flow regulated by powerplants 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. About 1,590,000 acres of land irrigated by diversion? 

from river and its tributaries above station. Records of chemical analyses and watei 

temperatures for the water year 1950 are given in Water-Supply Paper 1200.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

4.7

6.0

8.0

10.0

11.1

5,150

7,840

13,200

20,100

24,100

Discharge, In cubic feet per second, water year October 1950 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

Total 

Mean 

AC- ft

Oct.

*8.920 

12,700 

12,900 

12,700 

11,800

11,700 

10,500 

9,350 

12,900 

10,600

10,800 

11,000 

11,100 

11,400 

10,400

12 , 500 

12,800 

11,100 

11,600 

11,400

11,7OO 

11,200

11,' 100 

10,100

10,500 

11,000 

11,700 

10,700 

12,400 

11,800

353,370

11,400 

700,900

Nov.

11,300 

9,930 

11,600 

10,800 

8.350

12,300 

11,500 

*11,900 

11,300 

10,900

10,OOO 

11,500 

13,500 

11,200

11,100

11,300 

10,400 

10,800 

11,300 

12,400

12,300 

11,700 

11,600 

13,200 

12,700

13,300 

14.600 

12,500 

11,900 

11,200

348,380

11,610 

691,000

Dec.

11,200 

9.18O

is! ooo

12,400

12,300 

12,300 

*12,500 

11,200 

12,200

13,600 

12,300 

12,200 

12 , 200 

12,100

11,500 

13,900 

12,600 

13,300 

12,200

12,900 

13,100 

12 , 300 

13,000 

12,900

14.600 

11,900 

14,500 

12,600 

12,100 

12,400

336,780 

12,480 

767,200

Jan.

12,200 

14,000 

10.400 

14,000 

12 , 500

11,600 

12,700 

13 , 600 

11,800 

12,400

13,400 

15,200 

15,700 

15,700 

16,700

15,800 

16,300 

16,800 

15,400 

15,400

15,100 

16,400 

15,900 

17,700 

13.100

18,000 

18,000 

18,300 

18,100 

14,500 

15,900

468,600 

15,120 

929,500

Feb.

18,700 

18,600 

18,300 

18,800 

19,700

21,000 

21,500 

21,800 

21.900 

21,800

21,800 

20,600 

19,300 

19,200 

18,900

*18,600 

17,800 

18,600 

17,900 

17,900

18,600 

18,100 

17,800 

16,900 

17,800

17,900 

18,000 

16.500

534,300 

19,080 

*1,060

Mar.

17,300 

18,000 

17.200 

17,400 

18,000

17,800 

18,300 

17,900 

18,600 

17,800

17,800 

18,300 

18,300 

18,000 

*18,600

18,900 

17,200 

18,800 

18,700 

18,600

19,100 

19.400 

18,600 

18,600 

19,000

19,100 

18,700 

§,800 

,700 

,700 

18,600

567,800 

18,320 

*1,126

Apr.

17,900 

18,400 

17,800 

18,600 

18,100

17,800 

17,600 

17,300 

1"8,300 

17,200

19 . 500 

18,600 

17,700 

15,100 

14,700

16,300 

14,800 

12,600 

11,000 

10,400

11,000 

10,000 

9,340

m9,600 

*9,770 

9,400 

11,900 

12,200

430,110 

14,340 

853,100

May

14,500' 

17,400 

19,800 

19 , 300 

17,500

16,200 

16,900 

16,100 

14,800 

15,300

14,200 

13.100 

16,100 

20, 100 

22,300

25.900

21,700 

19,300 

17,400 

17,700

17,300 

18,000 

20,200 

18,500 

17,700

18,200 

19,100 

 18,700 

18,600 

19,400 

19,200

558,500 

18,020 

tl,108

June _,

18.600 

16,800 

16,500 

16,400 

16,500

14,700 

13,800 

13,200 

11,400 

10,200

9,090 

8,050 

8,270 

9,590

8,510

8,560 

7.470 

9,600 

8,760 

9,040

8,850 

*9,430 

11,100 

11,900 

13 , 300

9,740 

9,950 

10,400 

13,100 

10,300

343,110

11,440 

680,500

July

9,260 

9,360 

9,230 

6,810 

8,860

9.390 

8,930 

5.270 

7,990 

6,990

8,550 

8,350 

*8,190 

8,720 

6,760

8,880 

7,430 

7,770 

7,750 

7,990

7,640 

7,960 

8,320 

8,090 

7,930

8,740 

8,300 

7,920 

8,520 

8,460 

8,530

252,890 

8,158 

501,600

Aug.

9,050 

8,890 

8,880 

8,600 

8.250

9,130 

9,370 

9,190 

9,870 

8,820

8,890 

8,700 

8,980 

9,060 

8,650

8,770 

8,400 

9,080 

11.300 

10,200

8,810 

9,010 

8,550 

9,040 

8,930

8,740 

8,990 

9,030 

8,860 

8,850 

8,830

279,720 

9,023

554,800

Sept.

*8,870 

8,920 

9,160 

8.600 

8,990

9,060 

8,820 

8,830 

9,270 

9,350

8,970 

9,110 

9,110 

9,760 

9,740

9,580 

9,500 

9,710 

9,700 

9,570

9,400 

9,680 

9,940 

9,400 

10,000

10,100 

9,870 

10,200 

10,600 

10.800

284,610 

9,487 

564,500

Calendar year 1950: Max 25,600 Min 5,660 Mean 12,150 Ac-ft 8,796,000 

Water year 1950-51: Max 23,900 Min 5,270 Mean 13,170 Ac-ft 9,537,000

* Discharge measurement made on this day.

* Expressed in thousands.
120 CANYON CREEK BASIN

Mountain Home feeder canal near Mountain Home, Idaho

Location. Lat 43°13', long. 115°42', in sec. 36, T. 2 S., R. 6 E., on right bank 40 ft 

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 1951.

Gage. Water-stage recorder and concrete control. Prior to May 4, 1924, staff gage and 

~Tay 4, 1924 to Sept. 30, 1929, water-stage recorder at site 30 ft downstream at datum 

0.07 ft lower.

Extremes. 1924-29, 1931-51: Maximum daily discharge, 182 cfs Jan. 1, 1943; 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. Plow regulated by headgates in Canyon Creek and by 

Long Tom and Little Camas Reservoirs.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

2.4

6.0

11

0.5 

1.0 

1.5

24

62

104

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

4.6

4.6

4.2

4.2

4.2

4.2

3.8

3.5

3.1

2.9

2.7

2.5

2.3

2.1

1.9

1.7

1.5

1.3

1.1

.9

.7

.5

.3

0

1.5

2.0

2.5

3.0

3.5

3.5

3.5

78.3

2.53

155

Nov.

3.5

4.2

4.2

3.8

3.8

3.2

*3.0

2.8

1.8

0.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.5

4.6

4.6

4.6

4.9

4.9

-

56.4

1.88

112

Dec.

5.0

5.0

5.0

6.5

10

13

47

48

47

48

47

44

40

38

*35

33

30

29

27

26

25

24

22

21

20

20

18

18

18

18

18

805.5

26.0

1,600

Jan.

17

16

16

15

b!5

b!3

10

12

12

14

17

16

15

15

16

16

20

23

?3

b22

22

23

23

42

62

70

60

35

b45

35

40

800

25.8

1,590

Feb.

45

45

50

55

*57

54

74

73

59

40

40

40

40

35

30

25

20

17

17

17

16

16

16

15

14

13

13

13

-

-

-

949

33.9

1,880

Mar.

12

12

11

11

11

11

11

10

*10

8.0

8.5

10

10

10

10

10

30

44

44

il

44

29

29

29

29

29

29

30

31

31

32

672.5

21.7

1,330

Apr.

54

48

49

49

46

40

37

37

36

36

35

33

32

31

36

60

64

84

93

97

96

91

86

83

81

*78

78

88

38

94

-

1,870

62.3

3,710

May

90

87

83

80

78

76

76

73

71

72

77

87

_92

91

89

87

85

85

89

84

82

80

*100

97

122

98

94

93

93

93

90

2,674

86.3

5,300

June

89

87

85

84

84

84

83

81

58

36

21 *49

52

52

52

52

57

57

57

74

77

78

77

77

76

75

74

73

72

72

-

2,055

68.5

4,080

July

78

78

78

78

77

60

56

56

56

60

65

67

66

60

60

51

50

52

*53

53

53

53

53

54

53

52

52

53

53

50

42

1,822

58.8

3,610

Aug.

37

37

37

38

38

38

46

48

48

47

51

40

39

38

38

47

48

54

56

*56

56

57

48

47

45

40

39

39

46

52

53

1,403

45.3

2,780

Sept.

50

46

40

34

30

34

39

40

43

49

53

64

 ?3 77

69

68

64

60

58

43

11

10

6.0

4.9

3.8

2.2

1.9

1.7

1.4

1.4

-

1,078.3

35.9

2,140

Calendar year 1950 : Max 97 Mln 0 Mean 39.0 Ac-ft 28,240

Water year 1950-51 : Max 102 Min 0 Mean 39.1 Ac-ft 28,290
BRUNEAU RIVER BASIN 121

East Fork Bruneau River near Hot Spring, Idaho

Gage . Water-stage recorder. Altitude of gage is 3,880 ft (by barometer). Prior to Dec. 

10,

Location. Lat- 42 "34" , long. 115°31', in SEiJ-NE^ sec. 16, T. 10 S., R. 8 E., on right bank 

at Winter Camp Ranch, 7 miles upstream from mouth and 20 miles southeast of Hot Spring.

Drainage area. 620 sq mi, approximately.

Records available .--August 1910 to April 1915, December 1948 to September 1951.

Water-stage recorder. Altitude of gage is 3,880 ft (by 

1948, at approximately present site at different datum.

Average discharge. --6 years (1910-14, 1949-51), 42.3 cfs.

Extremes . --Maximum discharge during year, 160 cfs May 14 (gage height, 5.06 ft); minimum 

not determined, probably occurred during period of backwater in September.

1910-15, 1948-51: Maximum daily discharge, 450 cfs Mar. 7, 8, 1911, during period 

of ice effect; maximum gage height observed, 10.65 ft Mar. 8, 1911, former site and 

datum; minimum observed, 0.4 cfs Aug. 28, 29, Sept. 13, 1910.

Maximum stage known, 16.9 ft, from floodmark, former site and datum, during spring 

of 1910.

Remarks . Records good except those below 10 cfs, which are fair, and those for periods 

of ice effect or backwater from beaver dams, 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.

Rating table, water year 1950-51, except periods of ice effect or backwater from beaver dams (gage height, in feet, and discharge, in 

cubic feet per second)

(Shifting-control method used Oct. 1 bo Dec. 20, July 23-26, 

Aug. 19-21)

1.6

1.7

1.8 

2.0 

2.2

0. 2.5 

3.0 

4.0 

5.0

20

96

156

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

8.2

872

8.5

9.4

9.7

11

11

11

10

10

10

10

9.7

10

11

10

12

12

*12

12

12

12

12

13

13

13

14

14

14

14

14

350.7

11.3

696

Nov.

16

19

19

21

18

16

15

16

16

15

13

12

T3

13

13

13

13

13

14

15

*17

23

20

17

16

16

15

15

15

15

-

472

15.7

936

Dec.

16

16

16

27

4_2

32

24

23

23

20

18

17

17

17

17

17

16

16

*15

16

15

14

14

13

13

11

11

11

12

11

12

540

17.4

1,070

Jan.

10

9

10

11

10

9

8

8

10

12

13

14

14

13

13

13

13

14

12

11

9

11

13

16

17

18

19

17

15

11

9

382

12.3

758

Peb.

8

8

10

15

20

35

*52

80

108

59

47

43

41

38

33

32

30

29

29

28

27

28

28

27

27

26

22

21

_

-

-

951

34.0

1,890

Mar.

21

21

20

19

21

20

21

20

19

i§

25

*24

28

26

27

34

34

28

25

26

26

42

46

36

32

32

34

34

33

33

36

859

27.7

1,700

Apr.

36

36

48

72

61

66

72

75

78

80

82

88

85

82

84

92

96

95

93

91

88

87

84

80

*73

71

72

70

66

80

-

2,283

76.1

4,530

May

94

98

99

100

97

105

108

118

132

129

124

123

138

156

138

125

115

107

104

108

116

120

117

110

*108

105

103

96

91

90

83

3,457

112

6,860

June

81

75

69

66

59

50

46

54

52

47

42

38

38

36

32

30

26

24

23

21

19

20

19

18

16

*15

13

13

13

10

-

1,065

35.5

2,110

July

10

8.5

6.0

6.0

5.8

5.0

4.0

4.0

4.2

4.0

3.9

3.9

3.4

3.3

3.9

3.3

2.7

2.4

1.8

1.1

1.0

1.4

1.8

1.8

*1.0

.9

170

1.5

1.8

2.0

2.0

103.4

3.34

205

Aug.

1.9

1.8

1.7

275

4.0

4.0

4.0

3.8

3.8

3.8

3.6

3.6

3.6

3.4

3.4

3.4

3.2

3.2

3.1

3.0

*4.5

7.0

7.5

9.0

875

8.0

7.5

7.0

6.5

6.0

6.0

142.3

4.59

282

Sept.

1 5

}'

r 3

i 2

I i

> . o

79.0

2.63

157

Calendar year 1950 : Max 226 Min 0.6 Mean 37.2 Ac-ft 26,940

Water year 1950-51; Max 156 Mln - Mean 29.3 Ac-ft 21,190 

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 12-17, Dec. 3, Dec. 21 to Peb 

Mar. 1-9, and by backwater from beaver dams July 27 to Aug. 18, Aug. 22 to Sept. 30.

by ice Nov. 12-17, Dec. 3, Dec. 21 to Peb. 8, Peb. 17-22,
122 BRDNEAU RIVER BASIN

Bruneau River near Winter Camp Ranch, Idaho

Location. Lat 42°38', long. 115 °42', in sec. 13, T. 9 S . , R. 6 E. , on right bank at 

Roberson Trail crossing, 6 miles downstream from East Fork, 11 miles northwest of 

Winter Camp Ranch, and 11 miles south of Hot Spring.

Drainage area. 1,890 sq mi, approximately.

Records available . November 1946 to September 1951 (discontinued).

Gage. Water-stage recorder. Datum of gage is 3,015.68 ft above mean sea level, datum 

of 1929.

Extremes . Maximum discharge during year, about 1,800 cfs May 28, estimated on basis of 

 records for station at Hot Spring; minimum recorded, 38 cfs probably Sept. 19-21 (gage

height, 0.58 ft), but may have been less during period of ice effect.

1946-51: Maximum discharge, 3,290 cfs May 17, 1949 (gage height, 5.23 ft); minimum daily, 24 cfs Jan. 28, 1948; minimum gage height, 0.48 ft Sept. 16, 1948.

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

which are fair. Several small reservoirs and many small diversions for irrigation 

above station.

Rating table, water year' 1950-51, except periods of ice effect (gage 

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

0.5 

.7 

1.0 

1.3 

1.6

31

57

114

192

308

2.0 

2.5 

3.0 

3.6

518

845

1,230

1,750

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

56

58

60

60

62

62

60

60

60

60

60

60

58

58

60

62

64

*66

66

66

66

66

66

66

67

67

71

74

78

76

78

1,993

64.3

3,950

Nov.

80

89

99

116

108

101

95

93

91

87

78

93

91

91

89

91

91

91

97

116

 131

215

222

1ST

156

141

136

128

124

119

-

3,440

115

6,820

Dec.

124

T24

128

192

660

458

318

415

458

399

352

312

286

263

240

225

215

202

*184

175

167

156

148

143

141

143

128

126

151

148

141

7,322

 236

14,520

Jan.

110

99

143

143

124

b82

b40

b45

b70

b!50

b!60

b!50

b!40

b!35

b!35

133

128

138

128

101

114

146

164

161

178

233

'244 263

b!70

b90

b70

4,187

135

8,300

Feb.

b65

blOO

b210

b215

b260

b900

*740

950

'740

800

920

700

540

470

450

385

340

340

260

290

320

290

275

240

240

200

170

-

-

12,410

443

24,610

Mar.

180

220

220

180

240

210

205

190

200

180

130

*Ti5

230

240

220

270

380

340

320

340

420

605

~&63 800

600

670

780

750

640

660

670

11,895

384

23,590

Apr.

620

610

730

860

1,030

1.160

1,250

1,330

1,360

1,390

1,450

1,340

1,290

1,330

1,420

1,440

1,390

1,380

1,420

1,500

1,430

1,340

1,240

1,160

*1,080

1,110

1,110

1,100

1,220

1,400

-

36,490

1,216

72,380

Calendar year 1950: Max 2,190 Min 56 Mean 452

May

1 ,'280

1,170

1,110

1,140

1,160

1,220

1,320

1,370

1,330

1,300

1,350

1,440

1,400

1,350

1,220

1,110

1.060

1,140

1,280

1,380

1,390

1,360

1,380

*1,480

1,520

1,560

1,650

1,740

1,710

1,500

1,300

41,720

1,346

82,750

June

1.130

1,000

890

820

750

710

700

680

 640

610

600

630

660

690

730

770

820

800

720

660

610

570

530

480

460

*442

431

410

394

373

-

19,710

657

39,090

July

352

332

308

290

268

248

236

222

212

202

195

186

172

161

154

148

143

138

128

124

121

116

112

108

*106

99

97

101

101

99

101

5,380

174

10,670

Aug.

95

91

87

87

11

95

91

89

84

82

76

71

69

64

62

60

59

56

59

54

*57

72

84

89

82

78

67

62

59

59

59

2,296

74.1

4,550

Sept.

57

59

57

56

54

S4

51

50

49

47

46

45

44

43

43

43

41

39

38

35

38

39

39

41

41

41

41

40

41

41

-

1,356

45.2

2,690

Ac-ft 327,000

Water year 1950-51: Max 1,74O Min 38 Mean 406 Ac-ft 293,900

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.--No gage-height record Oct. 1-17, Feb. 8 to June 25, Sept. 10-12, 19-30; discharge estimated 

on basis of 6 discharge measurements, weather records, and records for station near Hot Spring.
BRUNEAU RIVER BASIN 123

Bruneau River near Hot Spring, Idaho

Location. Lat 42°46'00", long. 115 0 43'30", in SE£ sec. 34, T. 7 S., R. 6 E., on right 

bank at Dunham Ranch, 1 mile downstream from Hot Creek, 1-| miles south of Hot Spring 

Post Office, 9 miles southeast of Bruneau, and about 16 miles downstream from East 

Pork.

Drainage area. 2.010 sqmi, approximately.

Records available. July 1909 to March 1915, October 1943 to September 1951.

Gage . Water-stage recorder. Datum of gage is 2,598.5 ft above mean sea level, datum of 

1929 (from stadia level circuit by Topographic Branch in 1945). Prior to Mar. 12, 

1910, staff gage at site a quarter of a mile upstream at different datum. Mar. 12, 

1910, to Mar. 15, 1915, staff gage at present site and datum.

Average discharge. 13 years (1909-14, 1943-51), 430 cfs.

Extremes . --Maximum discharge during 

mum, 48 cfs Jan. 7 (gage height,

ear, 1.820 cfs May 28 (gage height, 7.26 ft); mini- 

.77 ft).

1909-15, 1943-51: Maximum discharge observed, 5,660 cfs Mar. 1, 1910 (gage height, 

10.6 ft, site and datum then in use) , from rating curve extended above 1,200 cfs; minimum observed, 40 cfs Jan. 23, Nov. 29, 1911.

Remarks. Records excellent. Several small reservoirs on tributaries above station. 

Diversions above station for irrigation of about 8,500 acres.

Revisions (water years) . ¥ 1063: 1913;

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

3.8 

4.0 

4.3 

4.6

48

79

153

253

5.0

5.5 

6.0 

7.2

435

691

974

1,750

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

94 

96

96

100

1OO

100

98

100

100

98

98

98

96

92

92

96

98

102

*102

105

108

108

110

112

115

115

115

118

125

T25

125

3,237

104

6,420

Nov.

131 

136

142

172

156

145

139

133

133

133

122

T51

136

136

133

133

133

131

142

159

178

*257

289

?46

210

191

184

172

168

162

4,833

161

9,590

Dec.

162 

165

165

207

658

535

375

435

525

445

395

361

337

315

281

265

253

242

*228

214

2O7

194

184

175

172

175

162

153

175

178

175

8,493

274

16,850

Jan.

150 

118

162

175

159

112

1 55 '77

100

178

194

187

175

165

168

165

159

172

Io2

131

112

168

204

200

214

265

302

293

197

115

90

5,124

165

10,160

Feb.

83 

122

246

253

289

928

745

*9SO

1,050

778

829

945

740

576

510

485

425

375

580

297

515

551

324

306

2(3

273

239

210

_

-

13,507

475

26,390

Mar.

210 

249

253

221

277

246

242

251

242

217

168

*I5T

261

277

257

502

420

380

356

380

455

645

829

696

638

707

823

789

670

691

702

13,013

420

25,810

Apr.

654 

643

767

899

1,070

1,200

1,500

1,38O

1.4OO

1,430

1,510

1,590

1,540

1,58O

1,470

1,490

1,440

1,430

1,460

1,540

1,490

1,400

1,500

1,230

1,190

*1,170

1,180

1,170

1,280

1,450

-

58,055

1,268

75,480

May

1,520 

1,220

1,160

1,190

1,210

1,270

1,570

1,42O

1,590

1,550

1,590

1,480

1,450

1,400

1,270

1,16O

1.110

1,190

1,320

1,420

1,440

1,4OO

1,420

1,520

*1,560

1,600

1,680

1,750

1,720

1,540

1,360

43,080

1,390

85,450

June

1.190 

1,050

959

852

800

767

756

729

686

649

65S

664

696

725

762

800

852

855

767

707

659

617

576

525

510

495

*470

455

440

425

21,034

701

41,720

July

"395 4O5 

375

356

557

511

285

277

265

255

242

235

221

210

200

194

187

181

175

172

168

162

159

150

*147

142

136

TI5

142

159

159

6,897

222

13,680

Aug.

139

133

125

197

T42

145

136

133

125

120

118

112

105

102

100

98

96

94

92

92

*92

105

108

128

120

115

108

100

96

94

94

3,564

115

7,070

Sept.

92

92

90

90

87

85

83

79

79

77

76

76

74

76

76

76

74

72

72

12

70

70

70

72

72

72

72

70

72

72

-

2,308

76.9

4,580

Calendar year 1950; Max 2,190 Min 58 Mean 462 Ac -ft 334,500

Water year 1950-51: Max 1,750 Mln 55 Mean 446 Ac-ft 323,200

Discharge measurement made on this day.
124 SNAKE RIVER MAIN STEM

Snake River near Murphy, Idaho

Location.--Lat 43°18', long. 116°26 I , in NE£ sec. 35, T. 1 S., R. 1 W., on right bank 

4-j- miles downstream from Swan Palls powerplant and 7f miles northeast of Murphy.

Drainage area. 41.900 sq mi, approximately.

Records available. August to October 1912, August 1913 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,271.17 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. Prior to Sept. 7, 1914, staff gage and Sept. 7, 

1914, to Sept. 30, 1935, water-stage recorder at site 3i miles upstream at datum 9.79 

ft higher.

Extremes.--Maximum discharge during year, 26,100 cfs May 17 (gage height, 9.60 ft); minimum, 5,800 cfs July 10, 22; minimum gage height, 3.40 ft July 22; minimum daily discharge, 6,330 cfs July 9.

1912-51: Maximum discharge, 47,300 cfs June 22, 1918 (gage height, 13.95 ft, site 

and datum then in use); minimum recorded, 3,900 cfs July 9, 1949 (gage height, 2.53 

ft); minimum daily, 5,440 cfs Aug. 4, 1914.

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

fluctuations caused by Swan Falls powerplant. Several diversions by pumping between 

this station and station at King Hill. About 1,630,000 acres of land irrigated by diversion from river and its tributaries above station.

Rating table, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second)

(Shifting-control method used Nov. 1 to Dec. 9,

Aug. 18 to Sept. 30)

3.5 

4.0 

6.0 

8.0 

9.2

6,100

7,450

13,500

20,400

25,000

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

10,500 

9.430 

12,900 

13,100

12,800

12,200

11,900

10,700

9,940

12,800

11,000

11,500 

11,300

11,300

11,600

10,500

12,400 

12,900

11,400

12,000

12,200

12,100

11,500 

13.500

11,400

10,700

10,900

11,400

12,100 

11,100

13,200

362,070

11,680

718,200

Nov.

12,700 

111,800 

11,000 

*12,400

12,100

9.070

13,100

12,300

12,600

12,200

11,800

10,800 

12,200

14,200

11,900

12,100

11,900 

11,600

11,800

11,800

13,300

13,300

12,700 

12,600

13,800

13,500

14,000

14.900

13 , 400 

12,600

-

373,470

12,450

740,800

Dec.

12,000 

12,000 

10.200 

13,300

14,300

*12,400

13,800

13,300

13,700

12,200

13,300

14,700 

13,600

13,000

13,300

12,700

12,200 

14,600

13,400

13,700

12,800

13,500

13,500 

12,800

13,600

13,600

14,500

12,600

14 . 800 

12,700

12,700

408,800

13,190

810,800

Jan.

12,700 

12,700 

i 14, 200 

11.100

14,300

13,100

11,800

13,000

13,900

12,300

13,200

14,000 

15,900

16,300

16,200

17,200

16,500 

17,000

16,800

16,700

15,500

15,100

16,600 

16,500

*18,400

19.500

18,800

18,700

18,600 

17,700

14,600

478,700

15,440

949,500

Feb.

15.600 

17,700 

17,600 

18,000

19,000

21,700

23 , 000

24,500

24.900

24,100

24,200

23,900 

22 , 500

20,800

20,200

19,700

19,200 

18,700

18,900

18,400

18,600

19,000

18,600 

17,800

17,100

18,100

*18,000

18,200

-

-

558,000

19,930

$1,107

Mar.

16.600 

17,400 

18,200 

17,300

17,800

18,300

18,100

18,700

18,100

18,700

18,000

18,000 

18,400

18,400

18,300

19,000

19,100 

17,600

19,300

19,000

19,100

19,700

20 . 500 

19,400

19,300

19,700

19,700

19,700

19,100 

19,700

19,800

579,800

18,700

$1,150

Apr.

19,500 

19,000 

19,200 

18,800

20,200

19,600

19,200

19,100

19,000

19,800

19,500

21.500,

26,400

19,200

16,800

*17,600

17,000 

16,300

14,000

12,400

12,200

12,500

11,500 

10,500

9.450

9,940

10,500

10,900

10,900 

15,000

-

479,070

15,970

950,200

May

15.600 

15,900 

18,900 

20,400

20,400

18,800

17,400

18,200

17,900

16,500

16,600

1

16,000 

14,800

18,400

21,700

*25,700

24 . 800 

22,500

20,000

18,700

18,700

18,200

19,200 

21,000

19,500

18,800

19,500

20,200

19,700 

19,800

20,200

590,000

19,050

$1,107

June

19.300 

19,100 

17,200 

16,600

16,700

16,600

14,800

15,900

15,500

12,100

10,500

9,750 

8,800

9,040

*10,000

9,100

9,540 

8.500

9,760

9,160

9,400

9,400

9,880 

11 , 500

11,800

13,200

9,700

10,000

10,900 

13,000

-

365,010

12,100

720,000

July

10.500 

9,540 

9,160 

9,100

8,210

7,560

9,400

8,920

6.550

7,370

7,510

7,760 

8,160

7,930

8,440

7,950

,590 

* ,200

,450

,590

,450

,560

,950 

,750

7,950

8,070

8,100

8,010

8,150 

8,100

8,500

250,800

8,090

497,500

Aug.

8,500 

8,950 

8,890 

8,770

8,980

8.440

9,220

9,460

9,220

9,510

8,830

8,530 

8,710

8,850

8,860

8,620

8,560 

8,500

9,010

10,900

* 10, 500

9,040

8,950 

8,800

9,040

9,540

8,620

9,150

8,980 

8,800

9,040

279,150

9,004

553,600

Sept.

8,330 

9,040 

8,890 

9,250

8,890

9,070

9,010

8,860

8,980

9,100

9,340

9,040 

9,250

9,460

10,100

10,100

9,970 

9,910

9,700

8.710

9,670

9,430

9,850 

10,200

9,940

* 10, 400

10,500

10,500

10,500 

10,800

-

287,290

9,576

569,800

Calendar year 1950: Max 27,400 Mln 6,330 Mean 12,840 Ac-ft 9,293,000

Water year 1950-51; Max 24,900 Mln 6,330 Mean 13,730 Ac-ft 9,937,000

Discharge measurement made on this day. 

Expressed In thousands.
OWYHEE RIVER BASIN 125

Wild Horse Reservoir near Gold Creek, Nev.

Location. Lat 41°41'10", long. 115°51'20", in NE^NWi sec. 25, T. 44 N. , R. 54 E., at 

 Wild Horse Dam on Owyhee River, 8 miles west of Gold Creek and 12 miles southwest of 

Mountain City.

Drainage area.--209 sq mi.

Records available. March 1938 to September 1951.

Gage. Gage readings obtained about twice monthly from reference point on dam. Datum of 

gage is 6,109.18 ft above mean sea level (levels by Office of Indian Affairs).

Extremes.--Maximum contents observed during year, 34,140 acre-ft Apr. 17 (gage height, 

80.78 ft); minimum observed, 9,480 acre-ft Sept. 30.

1938-51: Maximum contents observed, 34,460 acre-ft Apr. 18, 1942 (gage height, 80.95 

ft); no contents at times during each year 1938-41.

Remarks. Reservoir is formed by concrete-arch dam; storage began Mar. 18, 1938. Capacity, 

3lT76"90 acre-ft between gage heights 20.0 ft (sill of outlet gate) and 80.0 ft (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.

Contents, in acre-feet, water year October 1950 to September 1951

Date

Oct. 31 

Nov. 20 

30 

Dec. 31 

Jan. 31 

Feb. 28

Contents

10,920 

10,830 

11,200 

13,440 

b!4,500 

18,450

Date

Mar. 31 

Apr. 8 

17 

30 

May 31 

June 13

Contents

b25,500 

32,150 

34,140 

33,940 

33,010 

31,740

Date

June 30 

July 12 

Aug. 1 

17 

31 

Sept.3O

Contents

26,170 

21,640 

17,940 

15,290 

12,970 

9,480

b Contents computed from gage readings corrected for ice cover.
126

OWYHEE RIVER BASIN

Owyhee River near Gold Creek, Nev.

Location. Lat 41°41'10", long. 115°51'30", in NW£NW£ sec. 25, T. 44 N., R. 54 E. , on 

right bank 500 ft downstream from Wild Horse Dam and 8 miles west of Gold Creek and 

12 miles southwest of Mountain City.

Drainage area. 209 sq mi.

Records available. March 1916 to September 1925, October 1936 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 6,130 ft (from topographic map). Prior 

To Oct. 1, 1936, at site a quarter of a mile upstream at different datum.

Average discharge.--22 years (1917-21, 1922-25, 1936-51), 42.7 cfs.

Extremes.--Maximum discharge during year, 353 cfs Apr. 19 (gage height, 4.12 ft); no flow 

Nov. 21 to Apr. 8.

1916-25, 1936-51: Maximum discharge, 1,810 cfs May 5, 1922 (gage height, 10.11 ft, 

site and datum then in use) , from rating curve extended above 400 cfs; no flow at 

times when reservoir gates are closed.'

Remarks. Records good. Small diversions above station for irrigation. Flow regulated 

by Wild Horse Reservoir beginning Mar. 18, 1938 (see preceding page).

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second)

1.2 

1.4 

1.7 

1.9 

2.1

4.0

8.0

2.6 

3.0 

3.5 

4.2

81

138

224

372

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

28

Fff

28

28

28

28

28

28

28

28

28

28

28

28

28

28

28

23

13

13

13

13

13

13

13

13

13

13

13

13

 11

667

21.5

1,320

Nov.

12

T?

12

12

12

12

12

*12

12

12

12

12

12

12

12

12

12

12

12

5.1

0

0

0

0

0

0

0

0

0

0

-

233.1

7.77

462

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

0

0

0

0

0

49

185

262

297

312

321

321

305

*301

*325

346

327

295

268

243

222

213

213

210

206

234

235

5,690

190

11,290

May

232

230

220

190

176

169

174

178

174

*164

152

157

166

161

144

130

119

118

119

114

112

107

99

89

82

79

75

70

65

59

54

4,178

135

8,290

June

49

46

46

45

39

527'9

85

77

99

120

119

*130

148

156

164

164

176

188

186

186

186

186

186

185

185

185

185

185

199

4,036

135

8,010

July

210

210

210

210

208

208

206

204

185

156

141

*107

107

106

106

107

107

107

107

107

107

107

106

82

66.

66

67

67

67

67

67

3,978

128

7,890

Aug.

67

68

68

68

68

69

69

70

76

88

89

89

89

89

97

101

*101

100

100

100

100

100

100

94

85

85

77

S53~

64

64

2,561

82.6

5,080

Sept.

64

63

63

64

64

64

64

64

64

63

63

63

62

61

61

61

61

61

61

*61

60

60

60

60

60

60

60

60

60

60

1,852

61.7

3,670

Calendar year 1950: Max 241 Mln 0 Mean 48.4 Ac-ft 35,070

Water year 1950-51: Max 346 Mln 0 Mean 63.5 Ac-ft 46,010

* Discharge measurement made on this day.
OWYHEE RIVER BASIN 127

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

Location. Lat 41 0 55'20", long. 116°04'10", in NW£ sec. 6, T. 46 N. , R. 53 E., on right 

bank 1,000 ft downstream from Skull Creek, 1 mile upstream from China diversion dam, 

and 2 miles southeast of Owyhee.

Drainage area.--458 sq mi.

Records.available. March 1939 to September 1951.

Gage. Water-stage recorder.

Average discharge. 12 years, 148 cfs.

Extremes. Maximum discharge during year, 1,040 cfs Apr. 19 (gage height, 8.15 ft); minimum, 24 cfs Nov. 16.

1939-51: Maximum discharge, 1,850 cfs May 6, 1945 (gage height, 9.18 ft); minimum 

daily, 2 cfs Sept. 15-18, 1940.

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

which are fair. Numerous diversions above station for irrigation of hay meadows. Flow 

partly regulated by Wild Horse*Reservoir (see p. 125).

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

Oct. 1 to Jan. 31 Feb. 1 to Sept. 30

1.5 

2.0 

3.0 

4.3

25

61

160

306

1.8 

3.0 

4.0 

6.0 

8.0

52

172

304

633

1,010

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

30

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

39

39

40

40

4O

42

43

42

42

42

42

42

42

42

43

43

42

42

40

34

32

32

32

32

32

33

35

34

33

33

36

1,185

38.2

2,350

Nov.

35

38

39

37

35

34

34

*34

33

30

29

30

30

30

30

31

32

37

47

51

96

T6

50

39

34

32

30

29

27

29

-

1,138

37.9

2,260

Dec.

29

28

79

299

176

116

156

175

155

130

115

105

94

89

*87

77

71

65

62

58

53

50

48

45

43

41

38

39

41

39

38

2,641

85.3

5,240

Jan.

37

39

41

43

42

40

37

38

40

41

42

42

43

44

45

45

46

45

42

42

46

SO

58

64

70

80

84

78

70

*60

58

1,552

50.1

3,080

Feb.

60

62

64

80

250

300

350

400

441

466

566

430

320

262

239

199

170

150

130

120

115

110

105

100

90

86

80

74

_

_

-

5,819

208

11,540

Mar.

74

70

70

70

75

80

86

82

80

75

80

90

100

110

132

130

115

115

118

*156

242

231

173

200

255

287

273

231

261

282

255

4,598

148

9,120

Apr.

248

300

320

385

457

510

551

575

593

720

787

823

855

897

932

924

*912

*952

1,010

1,010

958

887

832

775

737

730

701

734

836

783

-

21,734

724

43,110

May

766

75?

734

711

682

692

722

709

691

*671

676

685

685

637

584

529

513

520

527

532

513

483

461

446

421

413

403

385

364

334

306

17,547

566

34,800

June

279 249"

235

217

202

190

194

214

204

184

208

225

*221

234

227

242

239

235

254

261

256

251

238

234

230

228

221

221

214

218

-

6,825

228

13,540

July

227

225

225

222

222

218

216

214

213

174

161

*135

121

113

111

110

112

112

110

110

113

111

111

111

83

76

75

79

81

77

75

4,343

140

8,610

Aug.

74

74

74

73

74

74

74

73

69

82

88

86

81

82

84

88

*93

93

94

97

98

99

100

103

94

89

90

80

70

69

69

2,588

83.5

5,130

Sept.

68

66

65

65

65

65

65

65

65

63

63

64

64

64

64

63

64

64

61

*59_

60

62

63

64

63

63

63

63

64

64

-

1,910

63.7

3,790

Calendar year 1950: Max 786 Min 22 Mean 167 Ac-ft 120,900

Water year 1950-51: Max 1,010 Min 27 Mean 197 Ac-ft 142,600

Peak discharge (base. 580 cfs).--Feb. 11 (8 a.m.) 667 cfs (6.19 ft); Apr. 19 (10 p.m.) 1,040 cfs 

(8.15 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Nov. 10-12, Dec. 23 to Feb. 8. No gage-height record Feb. 17 to Mar. 14, Mar. 16-18; discharge estimated on basis of weather records and records for 

Humboldt River near Carlin.
128 OWYHEE RIVER BASIN

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

Location.--Lat 42°53', long. 116"59', in NW£ sec. 19, T. 6 S., R. 5 W., on left bank 

2 milas upstream from Lone Tree Creek and 7 miles southeast of Jordan Valley.

Drainage area. 450 sq mi, approximately.

Records available.--October 1945 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,495 ft (by barometer).

Average discharge.--6 years, 174 cfs.

Extremes.--Maximum discharge during year, 2,930 cfs Feb. 8 (gage height, 5.54 ft); minimum, 2.8 cfs Sept. 26 (gage height, 0.55 ft).

1945-51: Maximum discharge, that of Feb. 8, 1951; no flow part of day Oct. 4,5, 

1948.

Remarks. Records good except those for periods of ice effect, which are fair. Diversions 

above station for irrigation.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

(Shifting-control method used Feb. 7-9)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

0.8 

.9

1.0

1.1

1.2 

1.4

6.4

9.5

14

1.7 

2.0 

2.5 

3.0

3.5

143

291

520

825

1.4 

1.7

147

280

500

790

1,140

1,910

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

5.9

6.1

5.9

7.6

9.5

14

14

11

30

10

10

10

10

9.5

9.5

10

10

10

11

11

11

11

11

11

12

13

15

16

16

15

15

341.0

11.0

676

Nov.

15

*41

74

41

32

29

27

26 

31

22

25

26

25

26

23

24

25

26

44

51

96

94

67

55

47

45

42

40

39

45

-

1,203

40.1

2,390

Dec.

47

40

56

132

*156

141

314

318 

260

253

240

274

250

224

227

201

176

160

148

138

127

116

111

105

100

b77

b61

b77

92

96

79

4,796

155

9,510

Jan.

74

94

76

76

58

55

52

b55 

b60

b7C

b70

69

64

70

69

59

65

59

69

51

87

125

118

520

526

*470

393

288

179

b2OO

b240

4,461

144

8,850

Feb.

b300

b350

b400

b500

b600

780

1,600

1,880 

1,200

1,310

1,550

1,160

*838

682

598

510

435

425

344

360

324

288

284

268

256

198

238

198

_

-

17,876

638

35,460

Mar.

178

214

160

190

164

180

173

170 

170

jj?8

138

173

168

192

*324

580

396

312

360

580

706

640

500

530

646

688

700

640

670

736

670

12,076

390

23,950

Apr.

658

760

997

1,300

1,560

*1,660

1,780

1,810 

1,720

1,760

1,530

*1,380

1,280

1,390

1,490

1,380

1,320

1,250

1,230

1,120

1,050

899

864

850

850

892

934

1,020

962

796

-

36,492

1,216

72,380

May

772

754

712

706

694

730

754

742 

700

670

*724

670

616

592

556

525

520

545

562

545

520

490

485

480

450

415

410

415

376

328

288

17,746

572

35,200

June

250

223

206

185

229

214

*220

200 

178

162

145

147

149

143

136

132

123

100

72

81

75

67

64

62

59

56

54

52

*46

15-

3,873

129

7,680

July

43

41

38

41

44

41

37

33 

31

29

28

26

26

17

15

15

15

*12

9.0

6.3

6.0

6.0

6.3

6.6

6.6

6.3

5.8

5.8

5.8

6.0

6.0

614.5

19.8

1,220

Aug.

6.0

6.0

6.0

5.8

6.0

6.3

6.9

6.6 

6.6

6.6

5.8

5.8

5.5

5.5

5.3

5.3

5.1

5.3

5.1

5.1

5.1

5.1

4.6

4.4

4.4

4.4

*4.4

4.6

4.8

5.1

5.3

168.8

5.45

335

Sept.

5.3

5.1

4.8

4.6

4.8

5.5

5.3

4.8 

4.8

4.6

4.6

4.8

5.1

5.1

4.6

4.2

3.9

4.2

3.9

3.7

3.7

3.7

3.7

3.5

5.2

*3.4

3.5

3.5

3.4

3.4

-

128.7

4.29

255

Calendar year 1950: Max 1,350 Mln 2.3 Mean 183 Ac-ft 132,800

Water year 1950-51: Max 1,880 Min 3.2 Mean 273 Ac-ft 197,900

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
OWYHEE RIVER BASIN 129

Owyhee River near Rome, Oreg.

Location.-Lat 42°52<, long. 117°38<, in NE^ sec 14 (revised) , T. 31 S. R. 41 E., on

 right bank 800 ft downstream from Jordan Creek and 2 5 miles north 01 Home.

Drainage area. About 8,000 sq mi.

Records available. October 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,344.0 ft above mean sea level, datum

 of 1929, supplementary adjustment of 1947.

Extremes.--Maximum discharge during year, 13,000 cfs Feb. 11 (gage height, 10.77 ft); min-

 imum, 75 cfs Aug. 18 (gage height, 0.72 ft).

1949-51: Maximum discharge, that of Feb. 11, 1951; minimum, that of Aug. 18, 1951.

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-ft.

Cooperation. One discharge measurement furnished by Bureau of Reclamation.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

0.7 

1.0 

1.5 

2.0

145

315

550

3.0

5.0

7.0

10.0

1,190

3,010

5,450

11,200

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

140

137

134

134

137

142

142

142

*145

145

145

148

145

145

142

142

145

*145

145

142

142

145

145

145

148

148

148

148 

148

151

145

4,455

144

8,840

Nov.

148

157

202

233

187

184

196

196

190

181

175

169

169

169

166

181

184

184

181

178

193

205

230

254

287

315

299

275 

254

247

-

6,189

206

12,280

Dec.

236

236

240

*412

903

1,610

1,940

2.79Q

2, 320

2,260

1,790

1,450

1,390

1,320

1,060

966

1,050

889

690

570

515

485

485

455

405

368

327

315 

323

335

351

28,486

919

56,500

Jan.

327

323

327

275

b250

233

202

184

222

287

343

368

*347

360

355

339

343

331

319

311

279

307

373

445

847

931

bl,300

1,550 

1,350

1,010

702

15, 140

488

30,030

Feb.

560

b500

b450

b700

1,150

2,320

5,220

9,630

9,960

8,460

10. 100

9,160

7,410

5,280

4,150

3,340

2,840

2,350

2,030

1,840

1,650

1,520

1,410

1,370

1,300

1,180

1,060

952

-

-

97,892

3,496

194,200

Mar.

861

780

714

696

696

648

666

624

630

624

618

606

606

750

1,300

3,020

3,240

2,700

2,080

2/450

5,330

*5.480

4,460

3,580

4,090

4,660

4,780

4,380 

3,720

3,940

4,350

73,079

2,357

145,000

Apr.

3,660

3,820

4,820

*5,730

5,900

5,810

5,740

5,480

5,230

4,930

4,690

4,330

4,040

3,940

3,920

3,970

3,880

3,720

3,690

3,560

3,500

3,340

3,160

2,920

2,700

2,560

2,430

2.380 

2,480

2,870

-

119,200

3,973

236,400

May

3.080

2,810

2,610

2,380

2,210

2,050

1,900

1,820

1,820

1,820

1,820

1,900

2,070

2,220

2,230

2,160

1,950

1,750

1,610

1,490

1,490

1,420

1,330

1,250

1,180

1,090

1,030

980 

952

896

868

54,186

1,748

107 , 500

June

810

726

672

624

630

648

648

600

590

540

*490

450

430

391

360

347

331

311

*311

287

272

261

254

247

247

254

244

230 

226

216

-

12,647

422

25,080

July

208

200

190

180

185

190

180

175

170

170

170

165

165

160

160

165

170

170

165

165

160

160

155

155

150

150

155

155 

150

150

150

5,193

168

10, 300

Aug.

150

150

150

155

155

*160

151

140

132

116

113

108

113

108

103

100

100

89

93

100

100

96

91

113

113

116

121

123 

121

121

126

3,727

120

7,390

Sept.

129

126

126

123

118

118

110

110

110

108

113

113

110

113

113

110

103

96

91

86

89

91

93

93

93

*93

91

91 

91

96

-

3,147

105

6,240

Calendar year 1950: Max 4,610 Mln 86 Mean 764 Ac-ft 552,900

Water year 1950-51: -51Max 10,100 Mln 86 Mean 1,160 Ac-ft 839,800 839,800

ge (base. 3.000 cfs).--Dec. 8 (11:30 a.m.) 3.810 cfs (5.71 ft): Feb. 11 (6:30 p.m.) 

/77 ft)j Mar. 21 (9 p.m.) 7,410 cfs (8.14 ft); Apr. 4 (12 p.m.) 6,840 cfs (7.83 ft). 

- jjidCarge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. No gage-height record July 2 to Aug. 5; discharge estimated on basis of records for station 

above Owyhee Reservoir.

Peak discharg 

13,000 cfs (10
130 OVTCHEE RIVER BASIN

Crooked Creek near Rome, Oreg.

Location. Lat 42°48' , long. 117°44' , in sec. 6, T. 32 S., R. 41 E., on right bank 25 ft 

 downstream from highway bridge, 6 miles southwest of Rome, and 9 miles upstream from 

mouth.

Drainage area. About 1,700 sq mi, much of which is probably non-contributing. 

Records available.--October 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,540 ft (from road profile by Oregon 

state Highway Department).

Extremes. Maximum discharge during year, 70 cfs Mar. 22 (gage height, 1.75 ft); minimum, 

22 cfs at times during period January to March.

1949-51: Maximum discharge, that of Mar. 22, 1951; minimum, 22 efs Sept. 9, 10, 

1950, and at times during period January to March 1951.

Remarks. Records good. Several small diversions above and below station for irrigation. 

Cooperation. One discharge measurement furnished by Bureau of Reclamation.

Discharge, in cubic feet per second, water year October 195O 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

3O

31

Total

Mean

Ac-ft

Oct.

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

744

24.0

1,480

Nov.

25 

25

25

25

25

25

25

25

35

25

25

25

25

25

25

25

25

26

26

26

26

26

26

26

26

26

26

26

26

26

-

763

25.4

1,510

Dec.

26 

56

26

*26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

25

25

25

25

25

25

25

24

ST

25

25

24

24

789

25.5

1,560

Jan.

if24

24

24

24

23

23

23

21

22

22

*22

22

22

22

23

22

22

22

22

23

23

23

22

22

22

22

22

22

22

701

22.6

1,390

Feb.

22 

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

23

25

22

22

22

22

22

22

_

_

-

618

22.1

1,230

Mar.

22 

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

47

45

35

4'4

*66

55

36

32

29

28

26

26

25

25

893

28.8

1,770

Apr.

24 

2T

24

*24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

25

25

24

24

24

24

25

26

25

26

26

26

-

732

24.4

1,450

Calendar year 195O: Max 26 Mln 22 Mean 24.6

May

26 

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

25

25

25

25

25

25

25

25

25

25

25

795

25.6

1,580

June

25 

25

25

25

25

25

25

25

25

25

*25

25

25

25

24.

24

24

*24

24

25

25

25

26

26

26

26

26

26

26

26

-

753

25.1

1,490

July

26 

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

806

26.0

1,600

Aug.

26 

26

26

26

26

*26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

25

25

25

25

25

25

25

799

25.8

1,580

Sept.

25

25

25

25

25

25

25

25

25

24.

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

*24

24

24

24

24

-

729

24.3

1,450

Ac-ft 17,790

Water year 1950-51: Max 66 Mln 22 Mean 25.0 Ao-ft 18,090

* Discharge measurement made on this day. 

Note.--No gage-height record Mar. 28 to Apr. 

Aug. 9 to Sept. 25; discharge Interpolated.

3, Apr. 30 to June 10, June 12-17, June 24 to Aug. 5,
OWYHEE RIVER BASIN 131

Owyhee River above Owyhee Reservoir, Oreg.

Location. Lat 43°13' , long. 117°30' , in SE£ sec. 18, T. 27 S., R. 43 E., on left bank

 3 miles upstream from flow line of Owyhee Reservoir and 8 miles southwest of Watson.

Drainage area. 10.400 sq mi, approximately.

Records available. --October 1930 to September 1951 in reports of Geological Survey (dis-

 continued) . April 1929 to September 1941 in reports of Oregon State engineer.

Gage . Water-stage recorder. Altitude of gage is 2,690 ft above mean sea level (levels 

by Bureau of Reclamation) .

Average discharge. 22 years, 849 cfs.

Extremes . Maximum discharge during year, 11,400 cfs Feb. 9 (gage height, 11.38 ft); minimum, 168 cfs Aug. 20 (gage height, 3.77 ft).

1929-51: Maximum discharge, 16,000 cfs Mar. 20, 1932, Apr. 19, 1936; maximum gage 

height, 12.95 ft Mar. 20, 1932; minimum discharge, 99 cfs Dec. 18, 1948 (gage height, 

3.45 ft).

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-ft.

Cooperation . Water-stage recorder graph and three discharge measurements furnished by 

Burreau of Reclamation. 

Revisions (water years). --W 793: 1932(M).

Rating table, water year 1950-51, except periods of ice effect (gage 

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

3.7 

4.0 

4.5

151

235

425

5.0 

6.0 

7.0

660

1,320

2,230

8.0 

9.0

11.1

3,480

5,200

10,500

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

235

235

232

229

223

220

226

226

226 

229

235

238

238

235

235

235

*235

238

238

238

238

235

235

238

238

242

242

235

238

242

238

7,267

234

14,410

Nov.

2"4T 242

246

284

325

280

277

291

288 

280

274

266

263

266

263

260

277

280

280

277

270

277

291

317

337

377

397

38T

357

349

-

8,814

£94

17,480

Dec.

333

321

337

365

610

1,220

1,460

1,870

2.750 

2,330

1,960

1,660

1,440

1,460

1,260

1,040

1,100

1,070

876

744

640

590

570

565

533

497

456

425

417

421

438

29,'738

959

58,980

Jan.

443

434

425

430

381

393

302

b250

277 

302

369

421

438

434

456

*452

443

b420

b410

b400

b390

b410

443

484

620

967

1,180

1.620

1,490

1,220

974

17,678

570

35,060

Feb.

b850

744

822" 640

1,160

1,950

4,760

7,580

10.400 

8,670

8,820

9,250

8,060

6,210

4,600

3,680

3,070

2,620

2,210

2,000

1,780

1,640

1,520

1,460

1,390

1,330

1,190

1,110

_

-

-

99,516

3,554

197,400

Mar.

981

894

840

792

786

750

894

1,340

858 

678

650

660

640

702

1,060

2,340

2,970

2,970

2,360

2,180

3,780

5.920

5,000

3,880

4,000

4,620

4,750

4,660

3,880

3,970

4,370

74,175

2,393

147,100

Apr.

3,880

4,020

4,390

5,500

5,830

5.920

5,830

5,560

5,300 

5,000

4,600

*4, 440

4,130

3,960

3,890

3,910

3,920

3,750

3,640

3,540

3,500

3,370

3,200

2,990

2,760

2,610

2,470

2.400

2,410

2,610

119,330

3,978

236,700

May

5.100

2,900

2,700

2,500

2,270

2,130

1,970

1,850

1,820 

1,810

1,820

1,840

1,960

2,160

2,230

2,200

2,030

1,830

1,710

1,600

1,500

1,5OO

1,400

1,300

1,250

1,200

1,150

1,100

1,050

1,000

950

55,830

1,801

110,700

June

900

e5o

800

750

700

700

700

680

660 

620

60O

570

550

520

500

480

460

440

420

400

390

380

370

360

350

350

350

340

330

520

15,840

528

31,420

July

310

300

290

280

*277

263

263

256

246 

256

252

246

249

249

242

252

256

256

256

252

246

238

232

235

235

238

235

235

229

229

235

7,838

253

15, 550

Aug.

226

223

226

226

223

232

238

232

216 

213

198

193

190

190

187

187

184

182

179

174

176

182

182

176

187

187

190

193

193

193

193

6,171

199

12,240

Sept.

204

207

SoT

204

204

201

198

196

198 

201

196

204

204

207

207

204

204

201

193

184

182

179

182

184

187

182

182

179

179

182

-

5,842

195

11,590

Calendar year 1950: Max 4,550 Min 175 Mean 824 Ac-ft 596,800

Water year 1950-51: Max 10,400 Min 174 Mean 1,228 Ac-ft 888,600

Peak discharge (base. 5.100 efs). Dee. 8 (11 p.m.) 3,720 cfs (8.16 ft); Feb. 9 (4 a.m.) 11,400 

cfs (11.38 ft); Mar. 22 (6 a.m.) 7,020 cfs (9.85 ft); Apr. 5 (8 a.m.) 6,690 cfs (9.71 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--No gage-height record May 20 to July 4; discharge estimated on'basis of records for station 

near Rome.
132 OWYHEE RIVER BASIN

Owyhee Reservoir at Owyhee Dam, near Nyssa, Oreg.

Location.--Lat 43°38', long. 117°15', in sec. 20, T. 22 S. , R. 45 E., near left abutment 

on Owyhee dam and 21 miles southwest of Nyssa.

Drainage area. 11,160 sq mi, approximately. 

Records available.--October 1932 to September 1951.

Gage.--Staff gage read once daily. Datum of gage is at mean sea level (levels by Bureau 

of Reclamation).

Extremes.--Maximum contents observed during year, 1,122,000 acre-ft Apr. 1 to May 23

 (elevation, 2,670.00 ft); minimum observed, 743,700 acre-ft Oct. 9 (elevation, 2,635.35 

ft).

1932-51: Maximum contents observed, 1,125,000 acre-ft June 11, 1936 (elevation, 

2,670.27 ft); minimum observed since full capacity was attained May 7, 1936, 630,500 

acre-ft Sept. 30, 1948 (elevation, 2,622.29 ft).

Remarks. Reservoir is formed by concrete arch-gravity dam, completed in September 1932;

 storage began Oct. 16, 1932. Capacity, 1,122,000 acre-ft between elevations 2,367.5 ft 

(bottom of sluice gates) and 2,670 ft (top of spillway gate), 715,000 acre-ft between 

elevations 2,590.2 ft (diversion tunnel) and 2,670 ft. Dead storage below elevation 

2,367.5 ft negligible. Figures given herein are of contents above elevation 2,367.5 ft. 

The reservoir will generally not be drawn below elevation 2,590.2 ft. 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.

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

Monthly elevation and contents, water year October 1950 to September 1951

Date

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

Calendar year 195O. .....

July 31.. .................

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

Water year 195O-51. .....

Elevation 

(feet)

2,644.17

-

2,641.06

-

Contents 

(acre-feet)

828,200

-

797,6OO

-

Change in contents 

during month 

(acre-feet)

+60,400

+66,600

-66,600

+40,700
OWYHEE RIVER BASIN 133

Owyhee River below Owyhee Dam, Oreg.

Locationr-Lat 43"39', long. 117°15', in sec. 17, T. 22 S., R. 45 E., on left bank three-

 quarters of a mile downstream from Owyhee Dam.

Drainage area. 11,160 sq mi, approximately. 

Records available. February 1929 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,343.67 ft above mean sea level (levels 

cy Bureau of Reclamation).

Average discharge. 22 years, 380 efs.

Extremes.-Maximum discharge during year, 7 170 efs Apr. 5 (gage helf^t, 9-04 ft); min-

 ImuHTobserved, 8 efs Oct. 17 to Feb. 19 (gage height, -0.20 ft), gates closed at

OWyi929-51:' Maximum discharge, 14,600 efs Mar. 21, 1932 (gage height, 12 79 ft); no 

flow for a few hours Aug. 8, 9, 1932, when temporary diversion tunnel at Owyhee Dam 

was closed.

Remarks. Records good. Diversions above station for irrigation. Flow regulated by Wild

 Horse and Owyhee Reservoirs (see pp. 125, 132).

Cooperation. Gage-height record and one discharge measurement furnished by Bureau of 

Reclamation.

Revisions (water years). W 983: 1941-42.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second; 

(Backwater from moss Oct. 1-9)

-0.2 

.0

1.0 

1.5 

2.0 

3.0

106

195

320

710

4.0 

5.0 

7.0 

9.0

1,290

2,060

4,140

7,100

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

127

T5T

120

114

116

115

1OO

92

81

27

15

11

11

11

11

11

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

1,209

39.0

2,400

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

-

240

8.0

476

Dec.

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

248

8.0

492

8

8

8

8

8

8

8

8

8

8

8

8

8

**8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

248

8.0

492

Feb.

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

360

788

195

750

690

532

415

374

477

_

-

-

5,233

187

10,380

Mar.

440

477

406

349

371

446

246

36

365

942

978

966

960

948

1,010

1,360

1,810

1,980

1,670

1,310

*1,100

2,590

3,300

2,930

2,270

2,370

2,960

3,130

3,020

2,490

2,640

45,865

1,480

90,970

Apr.

3,910

3,970

3,970

5,120

6,700

6,360

*5,740

5,210

5,280

5,520

5,080

4,520

3,880

3,550

3,350

3,420

3,360

3,290

2,640

1,850

2,0«0

2,380

2,360

2,250

1,750

990

870

660

685

854

-

101,399

3,380

201,100

May

1,230

1,840

1.910

1 ,840

1,240

888

854

709

329

213

170

288

524

957

1,780

1,870

1,250

679

454

461

300

137

T4T

155

151

153

155

155

155

155

155

21,298

687

42,240

June

155

155

155

155

135

123

T24

124

126

*129

129

131

131

131

148

155

172

182

184

187

187

187

187

187

184

184

191

197

199

T97

-

4,831

161

9,580

July

182

153

155

161

161

161

161

161

151

148

148

148

139

134

134

134

120

121

129

129

131

131

131

131

131

131

131

131

131

131

126

4,366

141

8,660

Aug.

123

123

129

164

151

142

142

*139

135

135

135

135

135

135

135

135

129

126

126

129

134

135

137

137

137

137

139

131

126

126

126

4,168

134

8,270

Sept.

127

129

T29

109

108

115

115

115

115

115

115

115

115

115

115

115

115

115

115

114

112

106

102

102

92

89

89

91

79

79

-

3,267

109

6,480

Calendar year 1950: Max 178 Mln 4 Mean 63.8 Ac-ft 46,210

Water year 1950-51: Max 6,700 Mln 8 Mean 527 Ac-ft 381,500

Discharge measurement made on this day. 

* Field estimate made on this day.
134 BOISE RIVER BASIN

Boise River near Twin Springs, Idaho

Location. Lat 43°40', long. 115°44', in sec. 27, T. 4 H., R. 6 E., a quarter of a mile 

upstream from Birch Creek, If miles upstream from flow line of Arrowrock Reservoir, 

4 miles downstream from Twin Springs, and 13 miles upstream from Arrowrock.

Drainage area. 830 sq mi, approximately. 

Records available. March 1911 to September 1951.

Gage. Water-stage recorder. Datum of gage is 3,251.08 ft above mean sea level (unadjusted). Prior to Apr."4, 1915, staff gage at same site and datum.

Average discharge. 40 years, 1,141 cfs.

Extremes . Maximum discharge during year, 7,290 cfs May 28 (gage height, 6.98 ft); minimum, 281 cfs Jan. 30 (gage height, 2.09 ft).

1911-51: Maximum discharge, 10,300 cfs May 17, 1927 (gage height, 8.30 ft), from 

rating curve extended above 8,000 cfs; minimum, 109 cfs Dec. 10, 1944; minimum gage 

height, 1.56 ft Dec. 15, 16, 1935.

Remarks. Records excellent except those below 500 cfs, which are good.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge,-In cubic feet per second)

2.1 

2.5 

3.0 

3.5

292

505

660

1,380

4.0 

5.0 

6.0

7.0

2,020

3,520

5,300

7,330

Discharge, in cubic feet per second, water year October 1950 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

total

Mean

Cfsm

In.

Ac-ft

Oct.

463 

451

451

451

463

538

505

505

499

481

469

457 

*451

451

475

475

463

481

475

457

445

440

434

428

4BT

584

633 

648

768

760" 832

15,884

512

0.617

0.71

31,510

Nov.

696 

8OO

76O

712

688

672

648

784

672

538

626

598

557

564

524

538

570

736

816 69~6

*760

704

664

619

612

626

640 

633

612

648

-

19,713

657

0.792

0.88

39,100

Dec.

648 

591

598

664

619

570

704

712

S7?

656

664

688 

688

656

672

640

598

577

*577

577

550

487

544

550

512

469

423

48T

577

591

518

18,479

596

0.718

O.83

36,650

Jan.

418

518

538

512

481

401

329

401

570

550

557

493 

457

475

481

475

487

418

440

445

512

518

481

499

512

505

487 

428

354

506

338

14,386

464

0.559

0.64

28,530

Feb.

380 

487

577

626

612

*577

712

916

961

961

1,05O

1,09O 

1,02O

925'

889

856

800

800

7 2O

712

7O4

664

664

672

672

598

626 

619

_

_

-

20,890

746

0.899

0.94

41 , 430

Calendar year 1950: Max 6,150 Min 254

Mar.

544 

584

557

557

564

*538

538

524

524

457

440 4§5~ 

531

' 550

570

712

648

598

619

696

808

856

BOO

8O8

943

1,070

1,180 

1,136

l,12o

1,110

1,04O

22,115

713

0.859

0.99

43,860

Apr.

1,070 

1,230

1,650

2,22O

2,660

3,110

3,490

3,680

3,55O

3,650

3,33O

3,340 

3,700

4,32O

4,48O

4,240

4,230

4,420

4,440

*4,210

3,75O

3,340

3,070

3,020

2,840

2,840

2,950 

3,820

4,510

3,820

10O.98O

3,366

4.O6

4.52

200,300

May

3,260 

2,840

2,590

2,680

2,94O

3,570

4,9OO

5,300

5,240

5,320

5,730

5,360 

4,690

4,140

3,820

3,880

4,320

4,92O

*5,240

5,150

5,150

5,410

6,150

6,290

5,990

5,730

6,270 

6,970

S,230

5,19O

4,410

149,680

4,828

5.82

6.71

296,900

June

3,B7O 

3,520

3,22O

3,040

3,140

3,070

2,860

2,650

2.5OO

2,47O

2,680

3,200 

3,710

4,140

4,860

5,630

5,306

*4,900

4,570

4,300

4,17O

3,880

3,36O

3,200

3,150

3,140

3,060 

3,100

3,O60

2,900 ' -

106,650

3,555

4.28

4.78

211,500

July

2,880 

2,900

2,820

2,890

2,600

2,300

2,220

2,150

2,050

2,010

1,830

1,670 

1,630

1,650

1,630

1,540

*1,460

1,390

1,340

1,290

1,200

1,100

1,020

997

979

943

916 

943

1,060

943

898

51,249

1,653

1.99

2.3O

101,7OO

Aug.

848 

SUB

776

824

BOB

BOB

7a4

704

372

656

626

605 

591

*577

564

544

531

518

512

512

512

531

557

612

550

512

493 

481

481

487

£81

18,965

612

0.737

0.85

37,620

Sept.

469 

457

457

440

434

423

418

412

412

406

406

401 

401

401

385

374

369

369

369

369

364

369

369

369

369

423

401 

390

385

380

11,991

4OO

0.482

0.54

23,780

Mean 1,466 Cfsm 1.77 In. 23.98 Ac-ft 1,061,000

Water year 1950-51: Max 6,970 Min 306 Mean 1,510 Cfsm 1.82 In. 24.69 Ac-ft 1, 093,000

Peak discharge (base. 3,700 cfs). Apr. 15 (3 a.m.) 4.71O cfs (5.74 ft); Apr. 29 (3 a.m.) 4,810 

cfs (5.79 ft); May 11 [8:30 p.m.) 5,790 cfs (6.30 ft); May 28 (9 a.m.) 7,290 cfs (6.98 ft); June 1 

(7 a.m.) 5,950 cfs (6.29 ft).

* Discharge measurement made on this day.
BOISE RIVER BASIN 135

South Pork Boise River near Featherville, Idaho

Location. Lat 43°29'40", long. 115 0 18'20", in lot 6, NE£ sec. 19, T. 2 N., R. 10 E., on 

right bank 1\ miles upstream from Deer Creek and 8 miles southwest of Featherville.

Drainage area. 635 sq mi.

Records available. April 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 4,220 ft (from topographic map of Bureau of Reclamation).

Average discharge. 6 years, 795 cfs.

Extremes. Maximum discharge during year, 5,340 cfs May 28 (gage height, 7.11 ft); minimum, 165 cfs Jan. 7, 30 (gage height, 1.70 ft).

1945-51: Maximum discharge, that of May 28, 1951; minimum, 30 cfs Feb. 10, 1949 

(gage height, 0.60 ft), result of snowslide upstream.

Remarks. Records excellent except those above about 3,000 cfs, which are good, 

ranch diversions above station. No regulation.

Small

Rating tables, water year 195O-51, except periods of ice effect (gage height,

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

(Shifting-control method used Apr. 14-21, 29, May 6 to June 2)

Oct. 1 to Dec. 4

1.9 241

2.1 319

2.5 510

1.7 157

2.0 252

2.5 472

Dec. 5 to Sept. 30

3.0 755

3.5 1,080

4.0 1,500

5.0 2,560

6.0 3,700

7.3 5,310

Discharge, in cubic feet per second, water year October 1950 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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

303 

294

294 

290

298

323

311

303

282

271

274

*267

260

260

278

274

274

286

274

267

263

260

256

256

278

368

391

410

490

500

455

9,610

310

0.488

0.56

19,060

No- .

425 

490

455 

435

420

410

405

500

420

341

401

391

363

363

328

350

368

455

445

410

*475

430

405

382

377

368

363

363

354

382

-

12,074

402

0.633

0.71

23,950

Dec.

577 

328

323 

372

319

294

362

357

335

323

319

335

315

282

327

340

298

267

*306

323

279

224

302

315

271

238

204

302

331

323

286

9,577

309

0.487

0.56

19,000

Jan.

224 

279

310 

310

279

231

191

b250

298

310

"294 323

267

294

306

302

282

238

245

248

271

286

271

275

302

294

260

220

b!90

blSO

195

8,225

265

0.417

0.48

16,310

Feb.

214 

294

319 

335

323

310

344

403

*413

413

380

403

371

335

340

357

335

331

327

310

335

315

327

327

323

298

306

302

-

_

-

9,390

335

0.528

0.55

18,620

Mar.

267 

294

306 

298

294

290

298

294

298

260

238

1?6~0

306

*315

323

335

294

275

298

331

357

371

349

389

447

498

580

569

580

574

552

11,140

359

0.565

0.65

22,100

Apr.

569 

624

785 

1,080

1,370

1,690

2,O20

2,240

2,320

2,500

2,310

2,360

2,660

3,090

3,240

3,080

3,100

3,270

3,350

3,230

2,930

2,590

*2,400

2,380

2,250

2,230

2,320

2,880

3,030

2,630

70,528

2,351

3.70

4.13

139,900

May

2,320 

2,060

1,940 

2,050

2,330

2,820

3,630

3,810

3,820

4,000

4,470

4,190

3,690

3,260

2,940

2,990

3,410

3,930

4,260

4,190

4,200

* ,360

,760

,920

,7FO

,470

,830

5,190

4,840

4,250

3,650

116,330

3,753

5.91

6.81

230,700

June

3,200 

2,820

2,430 

2,270

2,310

2,190

2,030

1,870

1,7-70

1,760

1,910

2,270

2,620

2,980

3,510

4,020

3,810

3,510

3,230

3,060

2,910

2,710

2,360

2,200

*2,150

2,130

2,090

2,080

2,020

1,920

76,140

2,538

4.00

4.46

151,000

July

1,880 

1,880

1,830 

1,820

1,540

1,490

1,400

1,360

1,290

1,260

1,210

1,090

1,040

1,020

1,000

959

926

880

854

822

791

737

695

677

653

*602

574 6&"8

677

613

613

32,S91

1,064

1.67

1.93

65,240

Aug.

558 

530

564 

602

547

542

509

467

452

432

417

398

389

380

366

353

340

327

323

323

335

362

*375

375

344

323

319

319

319

315

310

12,515

404

0.636

0.73

24,820

Sept.

302 

' 294

286 

282

275

267

263

256

252

248

245

248

256

260

245

248

245

245

238

234

234

242

242

238

242

256

245

245

238

238

7,609

254

0.400

0.45

15,090

Calendar year 1950: Max 4,300 Mln 145 Mean 925 Cfsm 1.46 In. 19.77 Ac-ft 669,400

Water year 1950-51: Max 5,190 Mln 180 Mean 1,030 Cfsm 1.62 In. 22.02 Ac-ft 745,800

Peak discharge (base, 2,000 cfs). Apr. 20 (12:30 a.m.) 3,480 cfs (5.69 ft); Apr. 28 (10 p.m.)

3,320 cfs (5.59 ft); May 11 (8 a.m.) 4,610 cfs (6.56 ft); May 28 (6:30 a.m.) 5,340 cfs (7.11 ft);

June 16 (7 a.m.) 4,180 cfs (6.32 ft).

* Discharge measurement made on this day.

b Stage -discharge relation affected by ice.
136 BOISE RIVER BASIN 

Lime Creek near Bennett, Idaho

Location. Lat 43°25', long. 115°16', in SWfttE^ sec. 16, T. IN., R. 10 E. , on right bank 

0.4 mile upstream from flow line of Anderson Ranch Reservoir, 2 miles upstream from 

mouth, and 12 miles northeast of Bennett.

Drainage area.--131 sq mi.

Records available. June 1945 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,250 ft (from topographic ma? of Bureau of Reclamation).

Average discharge. 6 years, 84.8 cfs.

Extremes . Maximum discharge during year, 917 cfs Apr. 14 (gage height, 5.53 ft); minimum, 15 cfs Nov. 10 (gage height, 2.22 ft).

1945-51: Maximum discharge, 1,180 cfs Apr. 19, 1946; maximum gage height, 8.02 ft 

Feb. 15, 1949 (snowslide downstream); minimum, 2.5 cfs Feb. 11, 1949 (gage height, 1.67 

ft), 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.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

2.3 

2.6 

3.0 

3.5

Oct. 1 to Apr. 14

19 4.0 334

43 4.5 495

97 5.2 760

204

Apr. 15 to Sept. 30

2.5 

2.7 

3.0 

3.5

22

41

93

204

4.0 

4.5 

5.1

334

495

720

Discharge, in cubic feet per second, water year October 1950 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

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

a23

325

a23

324

325

a26

325

325

325

326

326

*28

27

28

30

28' 28

29

28

28

28

28

28

28

32

38

38

39

43

45

37

904

29.2

0.223

0.26

1,790

Nov.

37

53

42

38

37

36

35

45

30

25

37

36

33

35

29

33

36

52

46

43

*60

47

43

40

40

41

41

40

38

44

-

1,192

39.7

0.303

0.34

2,360

Dec.

43

32

41

44

32

37

44

45

41

39

45

42

35

33

48

39

35

*35

43

38

31

29

43

37

33

31

32

39

46

44

34

1,190

38.4

0.293

0.34

2,360

Jsn.

b33

b37

41

40

b35

b31

b28

b32

b38

b40

b40

41

b38

43

4?

39

33

b33

b34

36

40

42

38

41

41

41

38

33

32

330

330

1,140

36.8

0.281

0.32

2,260

Feb.

b34

b45

b52

b55

354

352

356

370

*102

125

104

94

77

68

75

67

60

66

52

64

60

57

59

55

55

46

59

48

_

_

-

1,811

64.7

0.494

0.51

3,590

Msr.

51

59

48

50

46

48

47

46

45

37_

48

58

48

*47

350

353

a50

a48

a52

360

a65

a70

a70

378

a90

alOO

al!7

al!2

3115

allS

allO

2,033

65.6

0.501

0.58

4,030

Apr.

allO

a!20

150

3220

284

357

439

495

565

593

558

568

652

7IB- 740

676

652

664

640

593

548

488

453

*456

419

412

419

586

593

495

-

14,661

489

3.73

4.16

29,080

May

436

393

378

393

425

464

565 548"

544

534

548

526

470

409

372

357

360

375

381

378

369

*360

363

360

348

331

328

334

306

282

256

12,493

4O3

3.08

3.55

24,780

June

'218' 236

202

199

202

187

180

166

157

148

144

150

157

144

144

146

142

135

129

124

116

114

110

104

*97

93

89

84

80

78

-

4,275

142

1.08

1.21

8,480

July

74

372

a70

368

366

365

363

362

a61

a60

359

58

56

53

50

48

a46

a44

343

a42

a41

a 40

a38

a38

a37

a36

*36

36

42

37

3_4

1,575

50.8

0.388

0.45

3,120

Aug.

33

32

32

50

50

67

39

36

33

33

32

31

29

30

30

28

28

26

26

27

28

29

*30

30

29

27

26

27

29

29

29

1,005

32.4

0.247

0.29

1,990

Sept.

28

27

26

26

26

25

24

23

24

24

24

25

27

26

26

26

26

26

26

25

26

27

27

27

27

29

28

27

28

28

-

784

26.1

0.199

0.22

1,560

Calendsr year 195O: Max 618 Min 16 Mean 106 Cfsm 0.809 In. 11. O3 Ac-ft 76,950

Wster yesr 195O-51: Msx 740 Min 23 Mesn 118 Cfsm 0.901 In. 12.23 Ac-ft 85,40O

Peak discharge (base, 230 cfs). --Apr. 14 (9 p.m.) 917 cfs (5.53 ft); Apr. 28 (9 p.m.) 827 cfs

(5.33 ft); May 7 (5 p.m.) 576 cfs (4.70 ft).

* Discharge measurement made on this dsy. 

3 No gsge-height record; discharge estimated on bssis of westher records snd records for South 

Pork Boise River near Peathervllle, Pall Crsek near Anderson Ranch Dam, and other nearby streams, 

b Stage-dischsrge relstion sffected by ice.
BOISE RIVER BASIN 137

Fall Creek near Anderson Ranch Dam, Idaho

Location. Lat 43°26<00", long. 115°23'10", in SE£ sec. 9, T. 1 N., R. 9 E., on right

 bank~li miles downstream from Mill Creek and 6 miles northeast of Anderson Ranch Dam.

Drainage area. 55.3 sq mi.

Records available .--April 1945 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,350 ft (from .topographic map of Bureau of Reclamation).

Average discharge. 6 years, 68.6 cfs.

Extremes.--Maximum discharge during year, 516 cfs Apr. 14 (gage height, 5.22 ft); min-

 imum, 14 cfs Sept. 15-21, 23-25, 29; minimum gage height, 2.54 ft Sept. 20.

1945-51: Maximum discharge. 793 cfs Apr. 17, 1946; maximum gage height recorded, 

6.07 ft Jan. 5, 1947 (ice jam); minimum discharge, 1.6 cfs Feb. 9, 1949 (gage height, 

1.94 ft), result of snowslide upstream.

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

which are poor. No diversion or regulation.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

2.5 

2.7 

3.0 

3.3

3.6 

4.0 

4.5 

5.0

113

185

303

458

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cf sin

In.

Ac-ft

Oct.

18

T8

18

18

19

20

18

19

18

IS

*18

18

18

18

19

19

19

20

20

20

20

20

20

20

21

27

29

29

31

70

27

647

20.9

0,378

0.44

1,280

Nov.

29

5240"

34

32

30

29

48

33

b28

28

28

28

27

24

25

26

35

33

32

*39

37

36

35

35

36

36

36

35

37

1,003

33.4

0,604

0.67

1,990

Dec .

36

3?

32

34

33

32

32

32

32

32

33

36

35

34

36

34

33

33

*32

32

30

b28

31

32

b27

b26

b2430"

32

32

30

987

31.8

0,575

0.66

1,960

Jan.

b26

b27

29

28

b27

b25

b23

b27

b28

b29

b30

b29

b28

30

30

30

28

b27

b27

b27

b28

b29

b30

30

Jl

331

a30

a29

a 28

a27

a27

876

28.3

0,512

0.59

1,740

Feb.

a28

a3T

a37

a42

341

b40

40

*49

58

55

54

54

b52

b50

b48

47

b45

44

42

40

39

b37

36

35

34

b32

b33

b32

_

-

1,176

42.0

0,759

0.79

2,330

Mar.

b30

b31

31

32

29

29

28

*2S

28

b27

b26 b?r

28

29

30

30

b28

b27

29

31

35

36

36

39

47

54

63

62

64

S3

60

1,137

36.7

0.664

0.76

2,260

Apr.

64

82

123

173,

221

279

329

335

338

350

323

335

387

445

455

425

415

438

425

396

353

315

*295

284

268

281

298

390

387

323

9,532

318

5.75

6.41

18,910

May

284

246

237

258

284

326

362

359

368

371

378

3TT

303

258

246

251

268

287

287

276

*271

274

287

284

268

256

266

258

242

219

200

8,815

284

5.14

5.93

17,480

June

183

171

157

150

152

143

131

121

115

113

113

123

124

129

139

144

139

132

124

118

112

106

98

95

*87

84

81

76

74 '11

-

3,603

120

2.17

2.42

7,150

July

68

65

63

62

60

56

52

50

48

47

46

43

42

40

38

36

35

34

32

32

30

30

28

28

27

*26

^

26

27

26

26

1,249

40.3

0.729

0.84

2,480

Aug.

 5? 25

23

22

24

24

22

21

21

20

19

19

18

18

18

18

17

16

T5

17

17

17

*22

20

18

18

17

18

18

18

18

603

19.5

0.353

0.41

1,200

Sept.

17

T7

17

17

16

16

16

15

15

15

15

15

16

15

15

15

15

15

li

T4

14

15

15

15

15

15

15

15

15

15

-

459

15.3

0.277

0.31

910

Calendar year 1950: Max 461 Mln 14 Mean 79.1 Cfsm 1.43 In. 19.41 Ac-ft 57,290

Water year 1950-51: Max 455 Mln 14 Mean 82.4 Cfsm 1.49 In. 20. 23 Ac-ft 59,030

Pesk discharge (base, 500 cfa.).--Apr. 14 (9 to 10 p. m.) 516 cfs (5.22 ft); Apr. 28 (7:30"p.m.) 

451 cfs (5.03 ft}; May 10 (9 p.m.) 406 cfs (4.88 ft).

* Discharge measurement made on this day.

a No ^age-height record; discharge computed on basis of weather records and records for South Fork 

Boise River near Featherville and Lime Creek near Bennett.

b Stage-discharge relation affected by ice.
138 BOISE RIVER BASIN

Little Camas Canal at heading, near Bennett, Idaho

Location.--Lat 43°21'30", long. 115°23'00", in sec. 9, T. 1 S., R. 9 E., on right bank 400 

ft downstream from Little Camas Reservoir, 4 miles northeast of Bennett, and 22 miles 

northeast of Mountain Home.

Records available. June to November 1917, April 1924 to September 1951.

Gage. Staff gage read once daily. Datum of gage is 4,926 ft above mean sea level (datum 

of Mountain Home Irrigation District). June 1 to Nov. 29, 1917, water-stage recorder 

and Apr. 16 to May 11, 1924, staff gage at datum 6.00 ft .lower. May 12, 1924, to Sept. 

30, 1929, water-stage recorder at present datum.

Extremes. 1917. 1924-51: Maximum daily discharge, 77 cfs Apr. 27-30, May 1, 3, 9, 1924; 

no flow during nonirrigation seasons.

Remarks.--Records fair. Canal diverts from Little Camas Reservoir (South Pork Boise River 

drainage) in sec. 9, T. IS., 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 Little Camas Reservoir.

Cooperation. Gage readings furnished by Mountain Home Irrigation District.

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

May

 0

0

0

O

0

0

0

11

22

32

36 

36

36

36

35

37

39

39

39

42

!&

46

*46

46

46

19

0

0

0

0

0

689

22.2

1,370

June

0

0

0

0

6

15

17

21

23

24

27 

35

*19

0

0

15

29

32

34

41

44

44

45

46

47

49

*48

49

51

52

813

27.1

1,610

July

52

52

52

52

52

52

52

52

52

51

i50

50

50

50

50

50

50

50

50

50

50

50

50

*50

50

50

50

50

50

1,569

50.6

3,110

Aug.

50

50

50

50 ' 50

50

50

50

50

50

50 

50

50

50

50

50

50

50

50

50

50

*50

50

50

50

50

50

50

50

50

50

1,550

50.0

3,070

Sept.

5O

17

0

0

O

0

0

0

0

O

O 

O

16

42

54

54

54

54

41

0

0

0

0

0

0

0

0

0

0

0

-

382

12.7

 758

Calendar year 1950: Max 54 Min 0 Mean 15.3 Ac-ft 11,070

Water year 1950-51: Max 54 Mln 0 Mean 13.7 Ac-ft 9,920

Discharge measurement made on this day.
BOISE RIVER BASIN 13g 

Anderson Ranch Reservoir at Anderson Ranch Dam, Idaho

Location. 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 Fork Boise River, 1| miles downstream from 

Camas Creek and 3 miles northwest of Bennett (Dixie Store).

Drainage area. 980 sq mi, approximately.

Records available. December 1945 to September 1951.

Gage. Staff gage read once daily. Datum of gage is at mean sea level (surveys by Bureau 

of Reclamation).

Extremes. Maximum contents observed during year, 467,500 acre-ft July 8 {elevation, 

4,196.7 ft); minimum observed, 242,600 acre-ft Oct. 9 {elevation, 4,138.9 ft).

1945-51: Maximum contents observed, that of July 8. 1951: no usable contents prior 

to Jan. 27, 1946.

Remarks. Reservoir is formed by earth-fill dam. Storage began Dec. 15, 1945. Usable content's, 464,200 acre-ft between elevations 3,992 and 4,196 ft (top of spillway gates). 

Elevation of spillway crest, 4,174 ft, and of top of dam, 4,206 ft. Dead storage below 

3,992 ft is 28,980 acre-ft. Figures given herein represent usable contents. Water is 

used for irrigation of lands in Boise Valley.

Cooperation. Gage readings and capacity table furnished by Bureau of Reclamation.

Contents, in acre-feet, at about 8 a.m., water year October 195O 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

2Z

23

24

25

26

27

28

29

30

31

Oct.

263,600

260,300

256,700

253,400

250,500

246,700

245,100

243,900

242,600

243,200

243,900

244,500

244,800

245,400

246,100

246,700

247,300

248,000

248,600

249,300

249,900

250,500

251,200

251,800

252,500

253,100

254, 100

255,100

256,000

257,300

258,300

Nov.

259,300

261,000

262,300

262,900

263,600

264,300

265,300

266,600

267,600

268,300

268,900

269,900

270,600

271,600

272,600

273,600

274,500

275,300

276,300

277,400

278,700

280,100

281,000

281,800

282,900

283,900

284,600

285,600

286,300

287,400

Dec.

288,400

289,400

290,500

291,500

292,400

293,300

294, 300

295,400

296,100

297,200

298,200

299,300

300,300

301,400

301,800

301,800

302 100

301,800

301,400

301,100

301,400

301,400

301,100

301,100

301, 100

301, 100

300,700

300,000

299,600

299,600

299,600

Jan.

299,300

298,900

298,900

298,900

298,900

298,600

298,600

298,200

297,900

297,900

297,900

297,900

298,200

298,600

298,900

299,300

300,000

300,000

300,000

300,300

300,300

301,100

301,400

301,400

301,800

301,800

302,100

302,500

302,500

302,500

302,100

Feb.

301,800

302,100

302,500

302,800

303,200

303,200

303,600

304,300

305,000

305,300

306,100

307,800

307,800

308,200

308,600

308,600

30S, 900

309,300

310,400

310,700

310, 700

311,100

311,100

311,100

311,100

312,500

312,500

312,900

-

Mar.

312,900

312,900

312,900

312,900

314,000

314,000

314,400

315,400

315,400

315,400

315,800

316,500

316,900

317,300

317,600

318,400

318,700

319,100

319,500

320,200

320,600

321,300

321,700

322,000

322,400

323,900

325,000

326,100

327,600

328,700

329,800

Apr.

331,300

333,200

335,100

337,700

341,200

345, BOO

351,600

358,200

365,400

372,600

380,000

387,000

393,700

402,600

410,000

421,400

427,600

429,900

432,200

435,800

435,800

435,800

435,300

434,400

433,300

430,600

428,400

426,100

427,000

427,000

-

May

425,000

422,700

420,100

417,400

416,100

415,600

416,500

421,400

423,200

423,900

425,000

425,800

425,300

424,100

421,400

417,800

419,200

420,100

422,700

425,400

428,300

427,900

429,700

431,300

432,800

432,300

431,500

433,300

434, POO

435,900

436,700

June

436,300

436,800

437,600

437,900

438,800

435,500

438,000

439,800

441,300

442,400

443,600

445,400

448,100

451,000

454,800

458,800

460,200

460,600

461,900

462,900

464,700

466,500

466 , 600

466,300

466,600

464,500

465,900

466,000

466 , 100

466,100

-

July

466,200

466,400

466,400

466,400

466,600

466,000

466,500

467,500

467, 30O

467,000

466,900

466,600

466,000

465,400

464,400

463,800

462,800

462,000

460,800

459,800

458,700

457,500

456,200

454,500

452,800

452,000

451,000

450,600

450,100

450,600

449,200

Aug.

448,100

446,700

445,600

444,700

444,100

445,200

444,500

443,500

442,500

441,500

440,400

439,900

439,300

438,000

436,500

434,800

433,000

431,500

429,900

428,600

427,600

426,100

425,000

423,400

422,100

420,700

419,700

418,200

416,300

414,500

412,800

Sept.

410,900

409,100

407,900

406,300

404,700

402,800

400,900

398,800

397,100

395,400

393,300

391,600

389,500

387,900

385,800

384,100

382,400

380,800

379,200

377,100

375,500

372,200

368,800

365,200

361,700

358,200

354,900

351,700

348,100

344,600

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

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

Calendar year 1950. ......

Jan . 31 ....................

July 31 ....................

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

Water year 1950-51 .......

Elevation 

(feet)t

4,155.9

-

4,156.6

,164.2

,196.4

,192.82

,168.10

-

Contents 

(acre-feet)

266,900

296, 60O

-

302,100

329,800

466,100

449,200

412,800

344,600

-

Change in contents 

during month 

(acre-feet)

_

-8,600

+29,100

+12,200

+233,250

+2,500 

+10, 800

+16,900

+97,200

+9,700

+29,400

-16,900

-36,400

-68,200

+77,700

t Elevation about 8 a.m.
140 BOISE RIVER BASIN

South Fork Boise River at Anderson Ranch Dam, Idaho

Location.--Lat 43°20', long. 115°29', in SVf£ sec. 11, T. 1 S. , R. 8 E. , on right bank 600 

ft upstream from Dixie Creek, Ij- miles downstream from Anderson Ranch Reservoir, and 

2-J- miles northwest of Bennett (Dixie store).

Drainage area.--982 sq mi.

Records available. April 1943 to September 1951 (includes flow of Dixie Creek prior to 

October 1946 and excludes Dixie Creek thereafter).

Gage.--Water-stage recorder. Altitude of gage is 3,850 ft (from topographic map of Bureau 

of Reclamation).

Average discharge.--8 years (1943-51), 895 cfs.

Extremes. Maximum discharge during year, 6,500 cfs May 24 (gage height, 8.50 ft); minimum, 0.9 cfs Oct. 22-24 (gage height, 1.09 ft).

1943-51: Maximum discharge, 9,100 cfs Apr. 17, 1943 (gage height, 10.06 ft); minimum, 0.3 cfs Feb. 16, 1950 (gage height, 0.99 ft), but may have been less during period 

of ice effect.

Remarks.--Records excellent except those below about 20 cfs, 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 (see 

preceding page) beginning Dec. 15, 1945.

Cooperation.--Water-stage recorder inspected by Bureau of Reclamation.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

1.1 1.0 1.9 66 4.0 1,020

1.2 3.5 2.2 132 5.0 1,860

1.3 8.0 2.5 226 6.0 2,910

1.5 21 3.0 422 7.0 4,160

1.7 39 3.5 685 8.3 6,05O

Discuarge, in cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Oct.

2.140

2,140 

2,100

2,040

2,070

1,450

999

999

421

66

*66

66

64

57

31

18

2.8

2.0

1.5

1.2

1.0

.9

.9

.9

.9

1.2

1.5

1.2

1.2

1.0

1.2

14,746.4

476

29,250

Nov.

2,5

6.6 

20

15

47

52

56

56

47

41

6.2

5.3

4.8

5.3

3.5

4.0

4.8

5.3

4.4

9.8

*4.0

2.5

7.9

2.8

2.8

2.8

2.8

2.8

2.5

3.5

-

430.9

14.4

855

Dec.

3.0

2.5 

3.5

5.8

3.5

3.2

5.3

3.5

3.5

4.4

4.4

4.8

8.4

43

204

410

491

504

*306

476

478

470

466

476

472

468

463

449

473

' 472

467

7,643.8

247

15,160

Jan.

466

470 

467

208

464

465

466

462

439

350

301

*322

*269

86

272

266

281

275

260

165

91

426

343

353

336

372

186

95

448

468

397

10,269

331

20,370

Feb.

299

313 

246

95

*401

436

350

426

424

212

97

429

429

428

426

436

198

99

439

436

426

354

434

257

86

418

343

382

_

_

-

9,319

333

18 , 480

Mar.

388

ill 

274

82

303

266

214

120

*113

203

72

341

262

166

191

268

180

82

242

274

319

406

390

224

82

306

256

230

303

246

171

7,385

238

14,650

Apr.

91

138 

132

206

119

116

129

95

304

263

205

247

222

156

86

650

3,120

3,690

3,120

4,070

4,300

3,740

3,760

*4,000

4,280

4,460

4.710

4,600

4,260

4,470

-

59,739

1,991

118,500

Calendar year 1950: Max 5,140 Kin - Mean 88(

May

4,460

4,290 

4,330

3,680

3,610

3,600

2.690

3,880

4,820

4,840

5,200

5,490

5,260

5,560

5,520

3,330

3,690

3,780

4,060

3,700

*4,810

4,700

5,030

5,220

5,610

5.920

5,340

E,620

5,060

4,350

4,460

142,110

4,584

231,900

June

3,720

3,040 

2,860

2,010

5^280

1.550

1,630

1,630

1,630

1,620

1,630

1,630

1,630

1,650

1,790

3,370

3,950

3,420

3,040

2,530

2,430

2,700

2,860

2,280

*3,050

2,110

2,100

2,280

2,200

2,010

-

73,630

2,454

146,000

July

2,010

2^020 

2,010

2,010

2,010

1,700

936

1,390

1,580

1,480

1,480

1,470

1,470

1,460

1,460

1,460

1,460

1,450

1,450

1,460

1,460

1,460

1,510

1,460

1,320

1,090

*1,240

699

551

1,040

1,220

44,816

1,446

88,890

Aug.

1,230

1,260 

1,170

1,060

198

811

917

1,010

967

945

868

566

1,060

1,030

1,190

1,190

1.500

1,200

834

961

1,230

*1,190

954

1,160

1,110

915

976

1,190

1,170

1,270

1,270

32,202

1,039

63,870

Sept.

1,270

1,270 

956

1,100

1,150

1,270

1,290

1,310

1,220

1,150

1,230

1,290

1,290

1,270

1,270

1,110

1,310

1,130

1,270

1,270

1,480

2,060

2,080

2,080

2,090

1,920

2,090

2,100

2.110

2,040

-

44,476

1,483

88,220

3 Ac-I*t 637,400

Water year 1950-51: Max 5,920 Win 0.9 Mean 1,224 Ac-ft 886,100

* Discharge measurement made on this day.
BOISE RIVER BASIN 

Arrowroek Reservoir at Arrowrook, Idaho

141

Location.--Lat 43°36', long. 115°55' 

miles by road east of Boise.

in Ef sec. 13, T. 3 N., R. 4 E., at Arrowroek, 22

Drainage area.--2,210 sq mi, approximately. 

Records available.--October 1917 to September 1951.

Gage.--Staff graduated on face of dam read once daily. Datum of gage is at mean sea level 

Tsurveys of Bureau of Reclamation).'

Extremes.--Maximurn contents observed during year, 293,800 acre-ft June 29 (elevation, 

3,216.7 ft); no usable contents Oct. 15-27 when sluice gates were open.

1917-51: Maximum contents observed, 301,200 acre-ft May 29, 1948 (elevation, 3,219.1 

ft); 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 ft in 1937; storage began in 1915. Capacity, 291,600 acre-ft between elevations 2,956 ft (11 ft below center line of sluice gates, 8.5 ft below sill) and 3,216 

ft (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, had been reduced 

7,700 acre-ft at high stages by deposition of silt. Water is used for irrigation of 

lands in Boise Valley. Gage read about 8 a.m.

Cooperation.--Gage readings and yield table furnished by Bureau of Reclamation.

Contents, in acre-feet, water year October 1950 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.

16,710

is,4eo

19,380

19,870

20,580

21,310

21,200

20,170

19,420

17.950

15,380

12,610

8,402

C,695

0

0

0

0

0

0

0

0

0

0

0

0

0

3,145

6,104

8,315

11,200

Nov.

13,320

15,420

17,640

19,180

20,940

22,540

24,240

25,940

27,960

29,750

30,750

32,210

33,560

34,180

33,560

32,800

32,280

31,980

32,060

32,280

31,980

32,280

31,910

31,540

31,180

30,890

32,650

34,260

35,770

37,380

~

Dec.

38,840

40,260

41,880

43,320

45,100

46,700

48,300

50,480

5C,570

54,360

56,400

58,200

60,000

62.730

C4,550

66,500

69,100

71,700

74,120

76,500

78,880

81,050

83,750

86,000

88,300

91,020

93,570

95,340

97,200

100,100

102,600

Jan.

105,000

107,100

109,300

111,500

113,200

115,400

117,200

118,800

120,800

122,800

125,100

127,200

129,300

131,000

132,600

134,400

136,200

138,200

140,000

141,600

143,400

145,000

147,000

149,000

150,800

152,900

155,000

156,700

157,900

159,600

161,300

Feb.

163,000

164,400

166,100

168,200

170,500

173,100

176,000

180,100

184,600

189,000

193,400

197,900

202,700

207,500

212,200

215,800

218,500

22O,OOO

221,100

221,600

222,100

222,400

222,600

222,900

222,900

222,900

222,600

222,600

-

-

"

Mar.

222,600

222,600

222,400

222,400

222,100

221,100

220,600

217,500

214,800

212,800

210,000

207,500

205,100

202,700

200 , 500

198,800

197.400

194,300

190,800

187,400

185,200

181,900

179,500

176,600

173,800

171,000

172,400

173,800

174,000

172,900

172,700

Apr.

172,000

171,000

171,800

171,800

171,800

172,900

174,600

177,100

179,700

180,800

181,500

181,200

181,200

182,100

183,700

185,100

185,800

190,100

194,500

196,900

199,300

199,300

197,100

194,500

190,800

187,600

184,800

183,000

184,400

186,900

"

May

188,100

188,100

186,700

185,300

182,800

182,800

184,400

188,300

196,200

203,900

211,200

217,000

221,600

223,700

225,500

226,300

225,000

228,100

233,000

238,200

243,400

249,500

253,400

257,000

261,300

265,700

270,000

274,100

279,500

281,300

280,100

June

277,700

274,400

273,500

271,800

271,800

279,500

277,400

274,700

271,500

268,900

266,500

265,700

266,200

267,400

269,700

272,600

275,300

275,900

278,300

279,500

281,600

282,500

286,400

288,500

289 , 700

293,200

293,200

293,500

293,800

293,500

-

July

293,500

293,500

293,500

293,200

293,200

292,500

291,600

288,800

287,000

285,800

284,300

282,500

280,400

278,300

276,200

274,100

271,800

269,400

266,800

263,900

261,000

257,900

254,800

251,700

248,400

244,700

240,800

237,500

233,000

228,400

225,000

Aug.

221,300

218,000

214,200

210,800

207,000

201,700

197,400

193,400

189,200

183,000

181,200

176,600

171,200

166,800

162,300

158,100

153,900

150,200

146,400

141,800

136,800

133,000

128,700

124,500

121,100

117,500

113,800

110,500

108,100

105,500

103,300

Sept.

100,900

98,560

96,350

93,580

91,180

88,620

86,300

83,900

81,600

79,580

77,200

74,400

72,220

70,010

67,800

65,330

62,990

60,000

56,760

53,340

50,480

48,300

47,100

45,900

44,900

44,000

42,870

42,150

41 , 430

41,070

"

Monthly elevation and contents, water year October 1950 to September 1951

Date

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

Calendar year 1950. .....

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

Water year 1950-51. .....

Elevation 

(feet)t

3,134.2

-

3,212.2

3,087.3

-

Contents 

(acre-feet)

102,600

-

293,500

41,070

-

Change In contents 

during month 

(acre-feet)

_

-3,790

+26,180

+65,220

+48,000

+58,700

+14,200

+93,200

+13,400

-121,700

-62,230

+26,080

t Elevation at about 8 a.n
142 BOISE RIVES BASIN

Boise River at Bowling Ranch, near Arrowrock, Idaho

Location.--Lat 43°35', long. 115°58| , in sec. 15, T. 3 N., R. 4 E., at Bowling Ranch,

three-quarters of a mile upstream from Moore Creek and 4 miles downstream from Arrowrock.

Brainage area. 2,220 sq mi, approximately. 

Records available.--March 1911 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,890 ft (from Corps of Engineers topography of Lucky Peak reservoir). Prior to Mar. 18, 1915, staff gages at same site and 

datum.

Average discharge.--40 years, 2,267 cfs.

Extremes.--Maximum discharge during year, 10,200 cfs May 29-31; maximum gage height, 7.68 

ft May 30; minimum discharge, 7 cfs Jan. 1, 5, 6 (gage height, 1.05 ft); minimum daily, 

10 cfs Oct. 28 to Nov. 9, Nov. 11, 12.

1911-51: Maximum discharge, 18,800 cfs Apr. 20, 1943 (gage height, 9.93 ft); minimum, 1 cfs Jan. 3, 1945, Jan. 13, 1948; minimum gage height, 0.62 ft Nov. 21, 22, 1935; 

minimum daily discharge, 2 cfs for many days in 1935, 1936, 1942.

Remarks. Records excellent except those below 1,000 cfs, which are good, and those below 

20 cfs, which are fair. Flow regulated by Arrowrock Reservoir (see p. 141 ) and 

Anderson Ranch Reservoir (see preceding page). No diversion above station.

Revisions. W 883: Brainage area.

Rating tables, water year 195O-51 (gage height, In feet,

and discharge, In eublc feet per second)

(Shifting-control method used Oct. 1 to Feb. 16)

(Stage-discharge relation Indefinite Oct. 28 to Nov. 14)

Oct. 1 to May 31 June 1 to Sept. 30

0.9 

1.1 

1.3 

1.6 

2.0 

2.5

109 

230 

46O

3.0 

4.0 

5.0 

6.0

7.7

820

1,910

3,540

5,690

10,500

4.5 

5.0 

6.0 

7.5

2,550

3,430

5,600

9,860

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

1,840 

1,860

2,160

2,250

2,200

2,110

1,950

1,910

1,860

1,750

1,750

1,790

960

2,190

960

*684

692

569

618

555

597

583

569

548

611

676 

474 

10

Iff

10 

10

34,756

1,121

68,940

Nov.

10

To

10

10

10

10

10

10

10

226

10

10

314

687

780

829

847

838

892

874

*901

874

829

820

865

370 

15 

14

13

14

11,112

370

22,040

Dec.

13 

12

14

16

14

14

15

14

13

13

12

12

12

12

12

11

IT

11

12

12

*11

11

11

11

11

12 

11 

12

12

12

12

381

12.3

756

Jan.

13 

13

14

12

b!2

b!2

b!2

b!2

b!2

b!4

16

T5

14

14

13

13

14

14

b!3

b!2

14

14

b!3

b!3

13

14 

14 

b!3

b!2

bll 

bll

406

13.1

805

Fe1-.

b!2 

bTI

b!5

b22

b35

27

*34

33

34

33

38

38

36

36

28

231

693

910

1,110

1,270

1,280

1,260

1,260

1,260

1,280

1,300 

1,300 

1,300

-

~

14,889

532

29,530

Mar.

1,300 

1,300

1,300

1,3OO

1,300

1,300

*1,720

2,060

2,060

2,050

2,060

2,060

2,060

2,060

2,050

2,050

2,310

2,800

2,770

2,750

2,740

2,920

5,100

3,060

3,030

2,310 

1,250 

2,320

2,340

2,360 

2,360

66,450

2,144

131,800

Apr.

2,360 

2,360

2,8OO

3,560

3,830

3,830

3,890

3,950

4,380

4,750

4.75CV

4,750

4,75O

4,790

4,790

5,34O

6,020

6,500

6,980

*7,500

8,180

8,380

8,520

9,260

9.380

9,290 

9,200 

9,110

8,470

8,210

179,880

5,996

356,800

May

8,240 

8,260

8,240

8,210

7,670

7,360

6,93O

6,160

6,530

7,010

8,090

8,990

9,050

9,110

9,140

8,610

7,730

6,870

*6,580

6,660

7,170

8,350

9,380

9,860

9,92O

9,950 

10,000 

10,100

10,100

10.200 

10,160

260/570

8,405

516,800

June

9,530 

7,840

7,06O

5,700

4,910

5,530

*6,14O

6,110

5.80O

5,550

5,240

5,000

5,OOO

5.00O

5,480

7,290

8,810

8,010

7,140

6,420

6,16O

5,140

4,980

5,190

4.890

5,290 

5,240 

*5,410

5,530.

5,340

180,730

6,024

358,500

July

5.170 

5,050

5,OOO

5,000

5,OOO

4,780

4,590

4,620

4,550

4,360

4,290

4.27O

4,250

4,250

4,230

4,210

4,190

4,230

4,270

4,250

4,230

4,190

4,170

*4,150

4,100

4,O80 

4.O4O 

4,020

3,980

3.820 

3,820

135,160

4,360

268,100

Aug.

3,860 

3,840

3,800

3,800

3,78O

3,760

3,760

3,72O

3,700

3,760

3,800

3,880

3,940

3,860

3,820

3,780

3,720

3,660

3,660

*3,800

3,720

3,740

3,68O

3,560

3,430

3,340 

3,200 

3.01O

2,900

2,880 

2,880

112,040

3,614

222,200

Sept.

2,86O 

2,850

2,800

2,740

2,780

2,810

2,810

2,740

2,710

2,800

2,830

2,810

2,800

2,760

2,740

2,730

2,850

2,920

3,020

3.O60

3,O1O

3,020

3,O4O

2,970

2,930

2,920 

2,880 

2,83O

2,740

2, 610

85,370

2,846

169,300

Calendar year 1950: Max 9,380 Min 6 Mean 2,514 Ac -ft 1,820,000

Water year 1350-51: Max 10,200 Min 10 Mean 2,964 Ac-ft 2,146,000

* Discharge measurement made on this day. 

b Stage discharge relation affected by ice.

Note.--Stage-discharge relation indefinite Oct. 28 to Nov. 14; discharge estlnated on basis of 

reported gate openings.
BOISE RIVER BASIN 143

Bannock Creek near Idaho City, Idaho

Location.~Lat 43°48'30", long. 115°46'30", in SE£SW£ sec. 32, T. 6 N., R. 6 E., on right 

bank three-quarters of a mile upstream from South Pork, 2£ miles upstream from mouth, 

and 3 miles southeast of Idaho City.

Drainage area. 4.5 sq mi, approximately.

Records available. January 1939 to November 1941, December 1950 to September 1951.

Gage. Water-stage recorder and broad-crested wooden control with V-notch for low stages. 

Iltitude of gage is 4,090 ft (from topographic map).

Extremes. Maximum daily discharge during period December 1950 to September 1951, 14 cfs 

Apr. 29; minimum, 0.4 cfs Jan. 8 (gage height, 0.35 ft).

1939-41, 1950-51: Maximum discharge, 23 cfs Mar. 26, 1940 (gage height, 1.68 ft), 

from rating curve extended above 10 cfs; minimum, 0.07 cfs Aug. 23, 1940 (gage height, 

0.21 ft).

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

which are poor. No diversion or regulation.

Rating table, Dec. 1, 195O to Sept. 3O, 1951, except periods of ice effect 

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

0.3

.4 

.5

0.3

.5

.9

1.4

2.1

0.9

1.1 

1.3 

1.5

3.8 

6.3

Discharge, in cubic feet per second, water year December 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct. Nov. Dec.

al.l

al.l

al.l

al.l

1.1

1.1

*li4

1.3

1.3

1.2

1.3

1.3

1.3

1.3

1.3

1.2

1.2

1.2

1.1

1.1

1.1

bl.l

1.1

1.0

b.9

b.9

.8

75

1.0

1.0

1.0

34.9

1.13

0.251

0.29

69

Jan.

1.0

1.0

1.1

.9

b.8

.7

.5

.4

.5

.8

.8

.8

.8

.9

*.9

.9

1.0

.9

.9

b.9

.9

.9

.9

1.0

.9

.9

b.9

b.8

b.6

b.5

b.5

25.3

0.82

0.182

0.21

5O

Feb.

bO.6 bTe

bl.l

1.3

1.6

1.4

b2.4

*b2.5

2.1

2.2

2^6

2.6

b2.5

b2.3

2.2

b2.1

b2.1

2.0

b2.0

1.9

1.9

bl.9

1.9

1.9

1.8

bl.6

bl.6

bl.6

-

-

-

52.5

1.88

0.418

0.43

104

Mar.

bl.5

.6

.3

.3

.4

.6

.6

1.6

1.6

bl.O

bl.O

1.1

1.1

1.0

1.2

*1.4

bl.3

bl.2

bl.4

1.8

1.8

1.8

bl.7

bl.8

2.0

2.2

2.3

b2.2

2.3

2.9 2T5

50.9

1.64

0.364

0.42

101

Calendar year : Max Mln Mean

Apr.

3.1

3.4

4.2

5.4

6.6

8.1

8.5

11

11

*11

10

10

11

12

a!3

a!3

a!3

a!2

all

alO

a9.5

a9.0

a8.5

a8.0

a8.O

a8.0

a9.0

all

a!4

all

-

285.3

9.51

2.11

2.36

566

May

a!2

11

10

10

9.6

9.9

all

all

*11

12

12

all

all

alO

9.O

a8.5

a8.5

a8.5

a9.0

a9.0

a9.5

a9.2

a9.0

a8.5

a8.5

a8.2

a8.0

a8.0

a7.5

a7.0

a6^g

293.6

9.47

2.10

2.43

582

June

*5.5

a5.4

a5.0

a4.8

a6.0

a6.0

a5.1

a4.6

a4.3

a4.2

a4.0

*4.2

3.9

3.8

3.6

3.6

3.6

3.4

3.4

3.4

3.4

3.4

3.2

2.9

2.8

2.5

2.2

2.2

2.0

275

114.4

3.81

0.847

0.95

227

July

1.8

 1.8

1.8

2.0 T75

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.4

1.4

1.5

1.4

1.4

1.4

1.4

1.5

1.4

1.5

l!3

1.3

1.3

47.3

1.53

O.340

0.39

94

Aug.

1.3

ITS

1.3

1.3

1.3

1.3

*1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

.9

.9

.9

.8

.9

.9

1.0

.9

1.1

1.1

,8

.8

.8

.8

.8

.8

.8

31.8

1.03

0.229

0.26

63

Sept.

0.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

*.6

.6

.6

.5

76

.6

.6

.6

.6

.6

.6

.7

.7

.6

.6

.6

.6

18.5

O.62

O.138

0.15

37

Cfsm In. Ac-ft

Water year : Max Min Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

streams.

b Stage-discharge relation affected by ice.
144 BOISE RIVER BASIN

Moore Creek above Robie Creek, near Arrowrock, Idaho

Location. Lat 43°38'45", long. 115°58'45", In SE£ sec. 28, T. 4 N., R. 4 E. , on left 

bank at State roadside park, 1.7 miles upstream from Robie Creek, 5 miles northwest 

of Arrowrock, and 5.8 miles upstream from mouth.

Drainage area.--399 sq mi.

Records available.--October 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage Is 3,120 ft (from topographic map).

Extremes. Maximum discharge during year, 2,270 cfs Apr. 8 (gage height, 6.63 ft); minimum, 40 cfs 3ept. 8-12, 18-22; minimum gage height, 2.32 ft Sept. 8, 9, 20, 21.

Remarks.--Records good. Diversions above station and from Robie Creek for irrigation of 

about 900 acres.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

148

232

3.6 

4.0 

4.5 

5.0 

6.5

339

520

770

1,080

2,170

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac -ft

Oct.

a54

a54

a54

a54

a52

a62

a62

a56

a56

a 54

*57

56

56

56

61

62

60

a56

a56

a56

60

60

60

60

60

80

97

109

115

104

100

2,039

65.8

0.165

0.19

4,040

Nov.

109

208

153

122

109

98

95

124

111

93

89

91

88

91

88

89

106

143

158

129

124

117

111

106

104

104

104

102

*100

124

-

3,390

113

0.283

0.32

6,720

Dec.

138

117

126

171

174

ise

208

220

T91

180

177

185

182

174

169

174

1C1

153

146

143

 141

131

131

134

124

117

120

120

129

134

126

4,752

153

0.383

0.44

9,430

Calendar year 195O: Max

Jan.

91

117

115

124

98

76

64

78

124

134

131

124

117

115

117

126

115

129

117

104

120

131

115

129

141

148

138

109

82

69

80

3,478

112

0.281

0.32

6,900

Feb.

100

136

153

156

251

292

480

635

*640

605

645

670

620

542

5O6

452

389

393

311

339

315

285

282

274

268

220

245

232

_

_

-

10,436

373

0.935

0.97

20,700

Min -

Mar.

194

229

191

205

217

202

*199

191

188

148

153

180

191

199

238

331

292

261

282

335

421

457

434

475

575

G55

726

705

732

737

690

11,033

356

0.892

1.03

21,880

Mean

Apr.

759

964

1,260

1,540

1,800

2,100

2.150

2,110

1,960

*1,920

1,720

1,650

1,680

1,770

1,750

1,600

1,520

1,500

1,420

1,300

1,170

1,040

964

927

873

867

879

1,280

1,550

1,280

-

43,283

1,443

3.62

4.03

85,850

May

1,110

978

897

879

867

909

D ,040

1,080

1,070

*1,050

1,120

1,070

984

885

820

808

820

837

843

820

798

798

820

814

798

759

776

786

715

675

615

27,241

£79

2.20

2.54

54,030

June

556

529

493

4-80

556

570

529

462

439

416

407

*434

448

43O

448

462

457

430

412

380

362

344

323

303

288

274

258

248

235

223

-

12,196

407

1.02

1.14

24,190

July

208

*199

196

217

217

131

171

164

151

146

146

138

124

120

113

106

98

93

91

88

84

82

76

72

74

70

69

65

66

65

64

3,764

121

0.303

0.35

7,470

Aug.

61

61

61

62

64

64

*61

59

54

53

51

50

48

46

45

44

44

44

43

42

43

44

52

76

69

56

51

51

53

53

53

1,658

53.5

0.134

0.15

3,290

Sept.

53

50

49

46

45

45

43

41

41

41

40

IT

41

*41

42

42

42

41

40

40

40

41

42

43

44

44

47

46

46

46

-

1,303

43.4

0.109

0.12

2,580

Cfsm - In. - Ac-ft

Water year 1950-51: Max 2,130 Min 40 Mean 341 Cfsm 0.855 In. 11.6OAc-ft 247, 10O

Peak discharge (case, 8OO cfs). --Apr. 8 (2 a.m.) 2.270 cfs (6.63 ft); Apr. 29 (12:30 a.m.) 1,720

cfs (5.91 ft); May 11 (8:30 a.m.) 1,170 cfs (5.11 ft).

Discharge measurement made on this day.

No gage-height gage-height record; ______ discharge estimated on basis of weather records and records for station

mouth and Robie Creek.
BOISE RIVER BASIN 145

Robie Creek near Arrowrock, Idaho

Location.--Lat 43°37'30", long. 115°59'45", in N| sec. 5, T. 3 N., R. 4 E., oh left bank 

0.5 mile upstream from mouth and 5 miles northwest of Arrowrock.

Drainage area. 15.8 sq mi. ; 

Records available. October 1950 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 3,080 ft (from 

Topographic map).

Extremes. Maximum discharge during year, 72 cfs during period Apr. 6-8 (gage height, 

53.18 ft); minimum, 0.3 cfs Aug. 19 (gage height, 0.81 ft).

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

which are fair. Small diversions above gage for irrigation.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

0.8 

.9

1.0

1.1

1.2

0.2 

1.0 

2.0 

3.5

5.5

1.4 

1.6 

1.8 

2.0 

2.2

Discharge, in cubic feet per second, water year October 1950 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

 total

Mean

Cfsm

In.

Ac-ft

Oct.

al.8

al.8

al.8

al.S

a2.0

al.9

al.9

al.9

al.9

al.9

 1.8

1.7

1.5

al.S

al.6

al.S

al.S

al.S

al.S

al.S

1.8

1.8

al.S

1.8

1.9

2.4

2.8

2.4

2.6

2.3

2.0

59.4

1.92

0.122

O.14

118

Nov.

4.6

11

4.3

3.5

3.0

3.0

2.9

3.5

2.9

2.6

2.8

2.8

2.8

2.9

2.8

3.2

3.9

4.9

4.9

3.7

4.1

3.5

3.4

3.2

3.2

3.2

3.2

3.2

*3.0

4.3

-

110.3

3.68

O.233

O.26

219

Dec.

4.1

3.5

TTl

13

10

8.6

13

12

11

10

9.2

9.2

8.6

8.0

7.8

7.5

7.0

6.5

6.2

5.8

*5.3

5.1

4.9

4.9

4.7

4.3

4.1

4.5

4.9

5.3

4.9

218.0

7.O3

0.445

0.51

432

Jan.

b4.0

4.3

5.3

4.9

4.3

b3.5

b3.2

b3.6

b4.2

4.3

4.5

4.3

4.1

4.3

4.5

4.7

5.3

5.5

5.1

b4.5

b5.0

5.5

5.5

6.8

6.5

7.0

7.2

6.2

b5.S

b4.5

b5.0

153.1

4.94

0.313

O.36

304

Feb.

b5.5

b7.O

b8.O

b8.5

28

26 *47

42

37

34

36

38

32

33

31

26

24

22

20

19

18

17

16

16

16

16

14

14

-

-

651.0

23.2

1.47

1.53

1,29O

Mar.

b!2

13

14

12

12

11

*11

11

11

b9.P

b9.5

10

11

12

13

14

14

13

14

17

20

21

20

22

25

29

31

a30

a30

a33

a30

534.5

17.2

1.09

1.26

1,O6O

Apr.

a34

a 40

a44

a5O

a56

a62

a64

a62

a 58

a54

*50

48

48

49

49

44

41

40

37

36

32

29

27

25

JLi

24

24

38

40

35

-

1,264

42.1

2.66

2.98

2,510

May

32

?9

28

28

26

26

26

25

*22

20

22

23

21

20

19

18

18

17

17

16

15

13

13

12

12

11

12

11

10

10

9.8

580.8

18.7

1.18

1.37

1,150

June

9.5

8.6

8.3

8.3

11

11

10

8.9

8.3

7.5

7.2

*7.8

7.2

6.8

6.0

5.5

4.9

4.3

4.1

4.1

3.9

4.1

4.3

4.1

3.9

3.7

3.4

3.2

3.0 370-

186.9

6.23

0.394

0.44

371

July

2.6

*2.2

2.6

4.1

3.0

2.8

2.6

2.4

2.0

2.2

2.0

1.8

1.7

1.7

1.6

1.4

1.1

.9

1.0

.9

.8

.9

.7

.7

.8

.7

.7

.7

.7

.8

.6

48.7

1.57

O.O99

0.11

97

Aug.

0.5

.5

.5

.4

.5

.5

*.6

1.2

1.2

1.1

1.0

l.O

l.O

.7

.5

.4

.4

.4

.4

.4

.4

.5

.6

1.0

.7

.7

.7

.7

.8

.8

.9

21.0

0.68

O.O43

0.05

42

Sept.

0.8

.7

.7

.6

.6

.6

.5

75

.5

.5

.5

.6

.6

*.6

.6

.6

.8

1.2

1.2

1.2

1.2

1.4

.4

.4

.5

.6

.6

.7

T7T

1.7

"

29.1

0.97

0.061

0.07

58

Calendar year 1950: Max - Min - Mean - Cfsm - In. - Ac-ft

Water year 195O-51: Max 64 Min 0.4 Mean 10.6 Cfsm 0.671 In. 9.O8 Ac-ft 7,650

Peak discharge (base, 55 cfs).--Feb. 7 (2 p.m.) 53 cfs (2.04 ft); Apr. 6, 7 or 8 (time unknown) 

72 cfs (2.18 ft); Apr. 28 (4:3O p.m.) 56 cfs (2.O7 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Moore and Bannock Creeks and 

weather records.

b Stage-discharge relation affected by ice.
146 BOISE RIVER BASIN

Moore Creek near Arrowrock, Idaho

Location. Lat 43°35', long. 115°59', in sec. 21, T. 3 N. , R. 4 E. , on right bank 150 ft 

downstream from bridge on Boise-Arrowrock highway, a quarter of a mile upstream from 

mouth, and 3 miles southwest of Arrowrock.

Drainage area. 426 sq mi.

Records available. October 1914 to November 1915 (discharge measurements only), December 

1915 to September 1951.

Gage. Staff gage read once daily. Datum of gage is 2,896.11 ft above mean sea level, 

unadjusted. Prior to July 15, 1921, staff gage at site 1,100 ft upstream at different 

datum. July 15 to Oct. 24, 1921, staff gage at site 400 ft upstream at datum 0.87 ft 

higher. Oct. 25, 1921, to Sept. 30, 1948, staff gages at site 200 ft upstream at datum 

0.50 ft higher prior to Aug. 3, 1935, and at datum 0.23 ft higher thereafter.

Average discharge. 35 years (1916-51), 296 cfs.

Extremes. Maximum discharge during year, 2,480 cfs Apr. 8 (gage height, 4.52 ft, from 

graph based on gage readings); minimum observed, 40 cfs Sept. 21, 22 (gage height, 

0.62 ft).

1915-51: Maximum discharge, 6,610 cfs Apr. 8, 1943 (gage height, 7.1 ft, from 

floodmark); minimum observed, 7.9 cfs Aug. 13-15, 17, 18, 1924.

Remarks. Records good. Diversions for irrigation o about 900 acres above station.

Cooperation. Gage readings and one discharge measurement furnished by Water District 

No. 12-A.

Rating tables, water year 1950-51, except periods of Ice effect (gage height, 

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

Oct. 1 to Mar. 31

0.7

.8

1.0

1.5 206

2.0 378

2.8 850 1.0 

1.3

38

59

90

153

Apr. 1 to Sept. 30

1.6 232

2.0 383

2.5 675

3.0 1,030

3.5 1,430

4.0 1,900

4.4 2,340

Discharge, in cubic feet per second, water year October 1950 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

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

58 

58

58

58

5§

66

66

60

60

58

59

58

58

59

60

*62

60

62

60

60

60

59

59

60

59

71

89

108

127

117

1O8

2,112

68.1

0.160

0.18

4,190

Nov.

115 

TfB" 233

143

131

119

104

133

125

106

104

100

100

100

100

115" 96

143

164

143

135

*133

131

129

117

119

115

115

115

141

-

3,799

127

0.298

0.33

7,540

Dec.

152 

135

135

192

199

178

236

242

214

206

201

206

201

196

189

192

178

169

*162

160

156

141

139

143

139

129

13T

131

139

147

145

5,283

170

0.399

0.46

10,480

Jan.

96 

125

127

139

108

86

76

b!20

b!40

139

133

123

123

127

139

131

152

137

117

135

152

131

147

160

160

164

129

96

82

b90

3,868

125

0.293

0.34

7,670

Feb.

b!20 

bTSO"

blSO

206

b300

339

*576

804

811 720"

746

798

720

618

570

486

402

412

335

361

339

308

312

305

297

257

277

263

_

_

-

12,022

429

1.01

1.05

23,850

Mar.

222 

248

220

230

236

*225

228

206

211

164

173

196

211

233

263

356

324

270

294

344

426

480

448

496

624

696

818 766"

772

811

733

11,924

385

0.904

1.04

23,650

Apr.

831 

1,550"

1,340

1,560

1,810

2,110

2.230

2,190

2,070

1,980

*1,790

1,710

1,750

1,890

1,840

1,690

1,630

1 <£QO

1,520

1,400

1,270

1,140

1,040

1,030

970

948

970

1,360

1,630

1,360

-

45,739

1,525

3.58

3.99

90,720

May

1,200 

1,040

970

948

948

978

1,110

1,120

1,120

*1, 100

1,170

1,140

1,060

955

873

866

859

873

888

880

852

845

873

873

845

817

824

859

775

727

662

29,050

937

2.20

2.54

57,620

June

604 

56?

526

502

604

604

574

*479

451

434

424

456

479

445

468

479

473

445

419

393

374

356

334

314

298

284

270

*254

244

232

-

12,787

426

1.00

1.12

25,360

July

218 

207

199

224 2l8~

191

181

168

158

153

153

148

137

126

117

109

105

94

94

90

87

85

76

*73

76

73

70

67

67

67

§5.

3,896

126

0.296

0.34

7,730

Aug.

63 

63

62

65

67

67

65

60

59

57

53

51

48

47

47

45

45

42

4?

*42

42

43

47

78

TC

59

54

52

54

54

57

1,706

55.0

0.129

0.15

3,380

Sept.

57 

54

53

49

47

48

45

43

42

42

42

42

43

44

43

43

43

42

42

42

4040"

43

43

45

46

47

47

47

48

-

1,352

45.1

0.106

0.12

2,680

Calendar year 1950: Max 1,85O Min 36 Mean 359 Cfsm 0.843 In. 11.43 Ac-ft 259,600

Water year 1950-51: Max 2,230 Min 40 Mean 366 Cfsm 0.859 In. 11.66 Ac-ft 264,900

Peak discharge (base, 850 cfs). --Feb. 8 (11 p.m.) 856 cfs (2.81 ft); Apr. 8 (2 a.m.) 2,480 cfs

(4.52 ft); Apr. 29 (1 a.m.) 1,850 cfs (3.95 ft).

Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
BOISE RIVER BASIN 147

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

Between Dowling Ranch and Boise gaging stations, six principal canals and several 

small farm laterals divert water from Boise River for irrigation.

Records of total diversion, during period April to September for each canal for years 

1919-46, combined daily diversion covering period April to September for years 1947-51, 

and daily flow of New York Canal February 1939 to October 1948 in reports of Geological 

Survey. Records of daily diversion for each canal from 1916 to 1951 on file in office 

of Idaho State Reclamation Engineer.

Records show summation of discharge for these diversions. 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 cubic feet per second, April 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

£2

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac- ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr.

1,000

1,020

1,030

1,020

1,010

1,020

1,330

1,490

1,590

1,610

866 

1/560

1,200

1,290

2,050

2,130

2,640

2,920

3,140

3,300

5.500

3,420

3,410

3,470

3,380

3,420

3,430

3,430

3,290

3,230

66,696

2,223

132,300

May

3,200

3,070

3,060

3,050

3,0.60

3,140

3,230

3,380

3,440

3,520

3,540 

3,360

2,960

2,430

2,300

2,630

2,650

2,77C

2,890

2,880

2,880

3,140

3,290

3,310

3,360

3,320

3,330

3,330

3,280

3,290 

3,290

96,380

3,109

191,200

June

3,280

3,290

3,310

3,3(50

3,290

3,370

3,330

3,240

3,160

3,010

3.000 

3,000

3,170

3,250

3,230

3,410

3,400

3,350

3,390

3,420

3,430

3,430

3,430

3,430

3,430

3,420

3,420

3,440

3,430

3,430

99,490

3,316

197,300

July

3,460

3,470

3,450

3,460

3,450

3,470

3,350

3,360

3,370

3,270

3,280 

3,320

3,320

3,300

3,290

3,260

3,210

3,220

3,320

3,280

3,310

3,300

3,280

3,260

3,190

3,260

3,260

3,290

3,260

3,240 

3,100

102,660

3,312

203,600

Aug.

3,060

2,960

2,930

2,930

2,970

2,930

2,960

2,970

3,020

3,040

3,090 

3,100

2,160

3,120

3 . 240

3,090

3,020

3,000

2,940

3,120

3,060

3,120

3,0?0

3,040

2,860

2,740

2,700

2,570

2,390

2,330 

2,340

90,860

2,931

180,200

Sept.

2,310

2,230

2,260

2.170

2,170

2,240

2,240

2,390

2,300

2,260

2,260 

2,220

2,250

2,250

2,220

2,270

2,260

2,500

2,510

2,620

2,600

2,560

2,620

2,580

2,510

2,500

2,500

2,490

2,400

2,280

71,020

2,367

140,900

Calendar year : Max Mln Mean Ac -ft

Water year : Max Mln Mean Ac-ft
148 BOISE RIVER BASIN

Lake Lowell near Caldwell, Idaho

Location.--Lat 43°35 r , long. 116°45', in SE£ sec. 19, T. 3 N. , R. 3 W. , on outlet structure at lower embankment 2 miles west and 5 miles south of Caldwell and lat 43°34', 

long. 116°39', in NW£ sec. 36, T. 3 N., R. 3 W., on outlet structure at upper embankment 1 mile south and 4 miles west of Nampa.

Records available.--October 1917 to September 1951.

Gage. Staff gage read once daily. Datum of gage is 2,500.5 ft above mean sea level 

(surveys of Bureau of Reclamation).

Extremes. Maximum contents observed during year, 174,800 acre-ft Apr. 13, 14 (gage 

height, 29.76 ft); minimum observed, 38,970 acre-ft Oct. 1.

1917-51: Maximum contents observed, 178,900 acre-ft Apr. 27, 28, 1922, Apr. 24, 

1932 (gage height, 30.18 ft); minimum observed, 5,390 acre-ft Oct. 22, 1924.

Remarks.--Reservoir is formed by two earth embankments; dams were completed and storage 

began in 1908. Capacity, 177,150 acre-ft, between gage heights 0.0 ft (sill of outlet 

gates) and 30.0 ft (maximum operating level). Dead storage, about 13,000 acre-ft. 

Below gage height 12.0 ft 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.

Cooperation. Gage readings and capacity table furnished by Board of Control for Boise 

project.

Contents, in acre-feet, water year October 1950 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.

38,970

39,640

40,650

42,200

44,020

46,580

48,430

50,370

52,920

55,220

57,450

58,640

60,560

62,580

61,780

61,780

62,090

62 , 150

62,210

61,960

62,020

63,070

63 , 130

63,250

63,440

63,560

63,740

63,810

63,930

63,990

64,120

Nov.

64,180

64',300

64,430

64,550

64,670

64,860

65,300

65,670

65,860

65,980

66,110

66,230

66,360

66,550

66,800

68,570

70,490

72,820

75,040

77,300

79,440

81,480

83,530

85,330

87,350

88 , 900

90,670

91,030

91,310

91,600

-

Dec.

92,170

92,170

92,240

92,320

92,460

92,600

92,960

93,040

93,110

93,250

93,320

93,400

93,540

93,680

93,760

93,760

93,830

93,830

93,900

93,900

93,970

94,050

94,050

94,120

94,120

94,190

94,330

94,480

94,620

94,620

94,620

Jan.

94,770

94,770

94,840

94,990

95,060

95,130

95,130

95,2OO

95,200

95,200

95,200

95,350

95,350

95,350

95,420

95,500

95,500

95,500

95,570

95,570

95,790

96,080

96,080

96,080

96,220

96,300

96,300

96,370

96,440

96,440

96,440

Feb.

96,520

96,520

96,590

96,660

97,030

97 , 100

97,320

97,540

97,760

97,840

97,910

98,060

98,060

98,200

98,200

98,350

98,500

99,160

100,600

102,400

104,100

106,400

108,200

110,200

112,200

114,100

115,900

117,800

_

_

-

Mar.

119,800

121,700

123,600

125,600

127,700

130,000

131,900

133,700

135,800

137,700

139,600

141,600

143,700

145,400

147,600

149,300

151,300

152,300

153,200

153,100

152,900

152,800

152,400

152,200

152,000

151,700

151,500

151,400

152,100

154,000

155,800

Apr.

157,600

159,400

160,900

162,400

163,700

165,300

167,000

169,000

171,300

173,300

174,600

174,600

174,800

174,800

174,300

174,600

174,600

174,300

173,400

172,400

171,200

170,200

169,000

168,100

167,000

165,800

164,600

163,600

163,100

167,400

-

May

163,300

163,900

164,800

165,200

166,300

167,100

167,500

168,000

168,500

168,, 800

169,000

169,400

170,600

171,400

171,400

17 1 , 900

172,500

173,100

173,700

174,000

174,100

173,600

172,500

171,700

169,500

167 , 100

165,200

163,700

161,900

160,800

159,000

June

158,600

158,200

158,200

158,200

158,600

158,800

160,200

161,500

163,200

164,500

166,200

167,400

168,500

169,500

170,300

170,300

170,000

169,600

168,700

167,500

165,800

164,100

162,200

160,100

158,200

156,200

154,200

152,200

149,700

147,900

-

July

145,900

143,900

142 , 100

140,200

138,800

137,100

135,400

134 , 100

132,800

131,200

129,500

127,600

125,500

123,700

12 1 , 900

120,100

117,800

115,800

113,600

111,400

109,600

107,600

105,700

104,200

1O2,40O

100,900

99,380

97,980

96,810

95,710

94,770

Aug.

93,400

92,170

90,530

88,970

87,420

86,090

84,640

82,840

81,OOO

78,570

77,500

75,770

74,120

72,300

70,420

68,890

67,370

65,730

64,240

62,760

61,350

59,960

58,820

57,810

57,100

56,450

55,800

55,340

54,240

53,260

52,230

Sept.

51,330

50,600

49,320

49 , 100

48,320

47,230

46,200

45,290

43,810

42,990

42,070

41,040

40,030

39,750

39,780

39,690

39,520

39,630

40,540

41,200

41,840

43,120

44,340

45,610

47,020

48,430

49,430

50,760

52,230

53,200

-

Monthly gage height and contents, water year October 1950 to September 1951

Date

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

Calendar year 1950....

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

Water year 1950-51....

Gage height 

(feet)

11.20

19.80

20.22

.

20.47

23.27

28.99

26.85

20.24

13.68

13.85

-

Contents 

(acre-feet)

38,520

_

64,120

91,600

94,620

-

96,440

117,800

155,800

167,400

159,000

147,900

94,770

52,230

53,209

-

Change in contents 

during month 

(acre-feet)

.

_

+25,600

+27,480

+3,020

+2,880

+1,820

+21,360

+38.OOO

+11,600

-8,400

-11,100

-53,130

-42,540

+970

+14,680
BOISE RIVER BASIN 149

Boise River at Boise, Idaho

Location.--Lat 43°37', long. 116°13', in SW£ sec. 10, T. 3 N., R. 2 E., on right bank at 

Capital Boulevard Bridge at Boise.

Drainage area. 2,760 sq mi, approximately.

Records available. March 1938 to September 1939 (gage heights only), February 1940 to 

September 1951.

Gage. Water-stage recorder. Datum of gage is 2,675.46 ft above mean sea level (datum of 

uxrps of Engineers, Boise River Surveys). Prior to Apr. 30, 1943, water-stage recorder 

at site 1 mile upstream at datum 13.69 ft higher. Apr. 30 to July 10, 1943, waterstage recorder at site 400 ft downstream at present datum.

Extremes. Maximum discharge during year, 7,560 cfs May 14 (gage height, 7.39 ft); minimum, 34 cfs Nov. 25, 26 (gage height, 2.46 ft); minimum daily, 35 cfs Nov. 21,-23, 25. 

1940-51: Maximum discharge, 21,000 cfs Apr. 20, 1943 (gage height, 10.00 ft, site 

and datum then in use); minimum, 4 cfs Dec. 11, 1949 (gage height, 2.23 ft); minimum 

daily, 8 cfs Mar. 8-15, Dec. 6, 1941.

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

Flow regulated by Arrowrock Reservoir (see p. 141 ) and Anderson Ranch Reservoir (see p. 

139 ). New York, Ridenbaugh, and four smaller canals divert between Moore Creek and 

this station (see p. 147).

Rating tables, water year 1950-51 (gage height, in feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Nov. 14-27, Feb. 9 to Mar. 29)

Oct. 1 to Dec. 29

2.7 29

2.8 41

2.9 58

3.1 111

3.3 193

3.5 

3.8 

4.1 

4.4 

4.8

306

519

786

1,120

1,700

Feb. 9 to Sept. 30

308

527

818

1,440

5.0 2,370

6.O 4,440

7.5 7,810

Discharge, in cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Got.

4OO 

429 

400

346

282

319

276

270

282

276

313

294

612

1,520

1.570

796

*728

672

654

646

S19

6O1

585

585

585

646

500

110 ISO"

125

115

15,686

506

31,110

Nov.

*1O2 

184 

214

162

137

122

108

115

130

126

296

no

77

53

51

44

40

39

39

36

35 *36~

35

36

35

78

174

122 

118

126

-

2,98O

99.3

5,910

Dec.

144 

148 

141

188

225

2O8

225

276

?4T

225

214

214

220

220

*209

209

2O4

184

180

170

166

157

152

157

157

157

137

TW 

*170

170

180

5,802

187

11,510

Jan.

13O 

16O 

150

160

140

120

110

I2U

140

170

160

150

150

150

150

160

160

160

170

140

160

170

150

160

ISO

180

180

16O 

130

120

110

4,650

150

9,220

Feb.

120 

170 

19O

210

37O

380

560

850

922 844"

 831

883

*818

708

566

326

511

511

519

680

699

670

633

623

623

597

536

527

_

-

15,877

567

31,490

Mar.

503 

487 

487

487

487

487

714

1,550

1,440

1,370

1,340

1,350

1,350

1,370

1,410

1,49O

1,690

3,240

*3,290

3,330

3,370

3,540

3,710

3,710

3,770

3,770

1,650

2,500 

2,330

2,430

2,390

61,042

1,969

121,100

Apr.

2,590 

2 , 520 

3,020

4,OOO

4,700

4,920

4,750

4,77O

4,750

5,480

5,620

5,390

5,480

5,210

4,900

4,620

4,84O

5,060

5,300

5,530

*6,170

6,330

6,190

6,77O

7,O1O

6,880

6,79O

7,070 

6,96O

6,470

159,890

5,330

317,100

May

6,360 

6,260 

6,190

6,O8O

5.660

5,230

4,990

4,260

4,150

4,680

*5,460

6,85O

7,290

7,510

7,4OO

6,960

6,080

5,100

4,620

4,680

4,840

5,690

6,560

7,070

7,140

7,210

7,250

7,360 

7,400

7.3SO

7,340

191,030

6,162

378,900

June

6,960 

5,550 

4,400

3,540

2,480

2,760

3,560

*3,520

3,370

3,120

2,900

2,520

2,450

2,370

2,560

3,870

5,44O

5,280

4,180

3,750

3,240

2,660

1,950

2,200

1,99O

2,080

*2,140

2,200 

2,350

2,240

97,610

3,254

193,600

July

2,030

l,S16

1,910

1,910

1,910

1,660

1,490

1,440

1,420

1,290

1,300

1,250

1,220

1,20O

1,220

1,200

1,20O

1,180

1,170

1,150

1,120

1,120

1,120

*1,100

1,100

1..050

1,020

978 

948

909

597

40,518

1,307

80,37O

Aug.

1,070 

1,150 

1,100

1,070

1,O5O

1,050

1,020

963

896

896

922

978

1,010

1,010

935

935

883

857

857

857

818

807

807

785

774

774

741

689 

670 689"

689

27,732

895

55,010

Sept,

689 

699 fj8"9~

670

652

652

661

597

544

597

661

67O

*670

661

633

623

614

588

553

544

544

553

562

579

579

57O

544

536 

527

519

-

18,180

6O6

36,O6O

Calendar year 1950: Max 6,720 Mln 28 Mean 1,376 Ac-ft 996,300

Water year 195O-51: Max 7,510 Mln 35 Mean 1,756 Ac-ft 1,271,OOO

* Discharge measurement made on this day.

Note. Ho gage-height record Oct. 27-31, Dec. 30 to Feb. 8; discharge estimated on basis of 

weather records, records for Moore Creek near Arrowrock, and other Boise River stations.
150 BOISE RIVER BASIN

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

Between Boise and Notus gag-ing stations, 21 prinicipal canals and several small farm 

laterals divert water from Boise River for Irrigation.

Records of total diversions during period April to September for each canal for years 

1919-46 and combined daily diversion covering period April to September for years 1947-51 

in reports of Geological Survey. Records of daily diversion for each canal from 1916 to 

to 1951 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, water-master for Boise 

River. Records fair.

Discharge, In cubic feet per second, April 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

25

24

25

26

27

28 

29

50

51

Total

Mean

Ac- ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr.

0

0 

0

0

0

0

0

24

297

548

380

524

817

955

1,120

1,240

1,490

1,680

1,860

1,890

1,960

2,000

2,040

1,900

2,110

2.180

2,180

2,090 

1,910

1,800

-

52,775

1,092

65,000

Hay

1,640

1.620 

1,620

1,620

1,660

1,750

1,820

1,860

1,950

2,010

1,940

1,720

1,620

1,660

1,710

1,750

1,820

1,920

1,980

2,060

2,090

2,160

2,210

2,290

2,500

2,350

2,340

2,580 

2.400

2,370

2,560

60,960

1,966

120,900

June

2.540

2,290 

2,210

2,000

2,040

1,950

1.790

1,820

1,800

1,810

1,850

1,870

1,880

1,940

2,080

2,110

2,120

2,160

2,180

2,190

2,210

2,250

2,140

2,230

2,220

2,290

2,500

2,510 

2,310

2,290

-

62,940

2,098

124,800

July

2,260

2,260 

2.520

2,270

2,500

2,250

2,240

2,240

2,280

2,290

2,240

2,210

2,270

2,250

2,210

2,240

2,250

2,200

2,210

2,210

2,250

2,240

2,220

2,210

2,190

2,150

2,120

2.020 

2,030

2,050

2,100

68,580

2,212

136,000

Aug.

2,090

2.110 

2,110

2,100

2,060

2,050

2,050

2,020

1,970

1,990

1,960

1,950

1,960

1,910

1,910

1,900

1,900

1,880

1,870

1,900

1,900

1,860

1,860

1,840

1,810

1,790

1,770

1,740 

1,720

1,710

1.620

59,290

1,915

117,600

Sept.

1,620

1,630 

1,610

1,650

1.660

1,640

1,660

1,540

1,540

1,650

1,660

1,640

1,620

1,600

1,570

1,550

1,490

1,450

1,450

1,460

1,460

1,480

1,470

1,440

1,450

1,580

1,550

1.520 

1,520

1,350

-

45,650

1,522

90,550

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ae-ft
BOISE RIVER BASIN 

Boise River at Notus, Idaho

151

Location.--Lat 43°43', long. 116°48<, in SE£ sec. 34, T. 5 N., R. 4 W., on right bank 

1,100 ft upstream from steel highway bridge, a quarter of a mile southeast of Notus, 

and 7 miles northwest of Caldwell.

Drainage area. 3,820 sq mi, approximately. 

Records available.--April 1920 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 2,288.55 ft above mean sea level (datum of 

Corps of Engineers, Boise River Surveys). Prior to Aug. 26, 1936, staff gage at site 

1,100 ft downstream at same datum.

Average discharge. 29 years (1920-22, 1924-51), 1,110 cfs.

Extremes.--Maximum discharge during year, 7,840 cfs May 14 (gage height, 7.60 ft); minimum, 

52 cfs July 19 (gage height, 0.99 ft); minimum daily, 80 cfs July 19, 20.

1920-51: Maximum discharge, 20,500 cfs Apr. 20, 1943 (gage height, 10.43 ft); minimum observed, 10 cfs Aug. 18, 21, 1920.

Remarks. Records good. Diversions above station for irrigation of about 309,300 acres. 

Diversions between station and mouth for irrigation of about 5,300 acres. Flow regulated by Arrowrock Reservoir (see p. 141) and Anderson Ranch Reservoir (see p. 139). 

Records of chemical analyses and water temperatures for the water year 1951 are given 

in Water-Supply Paper 1200.

Rating table, water year 195O-51 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used May 30 to June 27)

1.2 

1.4 

1.6 

1.9 

2.2

134

307

307

Z.5

3.0 

3.5 

4.0 

5.0

450

800

1,240

1,770

3,060

6.0 

7.0 

7.6

4,700

6,600

7,840

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

562 

575

568

542

492

444

516

492

462

450

428

492

638

1,200

2.920

1,570

1,400

1,590

1,540

1,510

1,470

1,430

1,400

1,390

1,380

1,400

1,540

1,350

940

940

880

32,511

1,049

64,480

Nov.

840 

*880

922

906

864

824

808

792

768

768

864

832

760

728

682

668

652

652

638

624

617

610

617

617

610

610

668

728

728

744

-

22,021

734

43,680

Dec.

736

744

776

840

*832

848

888

888

888

848

824

8O8

800

800

808

800

776

760

744

736

728

712

698

690

690

682

675

682

698

705

712

23,816

768

47,240

Jan.

705 

690

728

712

705

660

596

589

603

617

660

668

652

645

652

652

668

690

690

638

631

668

682

728

»816

808

808

736

617

562

536

20,812

671

41,280

Feb.

5- 9 

603

645

784

1,580

1,320

1,920

2,170

2,000

1,890

1,790

1,770

1,690

1,540

1,410

1,070

1,120

1,160

1,160

1,200

1,410

1,390

1,330

1,290

1,290

1,280

*1,230

1,150

-

-

-

37,741

1,348

74,860

Mar.

1,110

1,100

1,060

1,100

1,120

1,090

1,120

1,820

2,240

2,100

1,960

1,960

1,990

2,020

2,060

2,200

2,160

3,450

4,190

4,220

4,280

4,290

4,580

4,630

4,680

4.810

3,140

3,030

3,030

3,210

3,160

82,910

2,675

164,400

Apr.

5.080 

3^150

3,400

4,410

5,510

5,810

5,620

5,470

5,200

5,680

6,420

5,920

5,490

5,410

4,770

*4,170

3,990

3,970

3,990

4,040

4,530

5,110

5,130

5,260

5,870

5,870

5,720

6,180

7.440

6,820

-

153,430

5,114

304,300

May

6,400 

6,260

5,980

5,770

5,520

4,700

4,48O

3,870

3.030

3,500

3,820

6,080

7,270

7,710

»7.760

7,380

6,400

5,010

3,820

3,720

3,630

3,900

4,630

5,600

5,850

6,020

6,180

6,600

6,780

6,900

6,980

171,550

5,534

340,300

June

6 , 880 

5,960

5,790

5,470

2,550

2,200

3,290

3,480

3,350

2,920

2,690

2,140

1,770

1,550

*1,340

1,800

3,720

4,880

3,470

3,140

2,a§o

2,080

1,010

914

956

728

897

848

1,010

1,120

-

80,193

2,673

159,100

July

956 

872

816

897

»1 , 090

956

712

603

549

504

406

232

250

185

161

170

136

109

80

TO

98

141

210

191

196

234

204

183

196

210

185

11,812

381

23,430

Aug.

188 

219

254

260

285

*292

288

260

207

166

112

109

110

130

158

156

149

122

112

105

114

109

145

260

300

328

340

340

336

323

328

6,603

213

13,100

Sept.

307 

303

300

257

250

240

202

183

T88

292

277

254

*257

288

300

288

307

319

315

292

285

307

319

315

319

328

340

348

357

362

-

8,699

290

17,250

Calendar year 1950: Max 5,940 Mln 20 Mean 1,304 Ac-ft 944,300

Water year 195O-51: Max 7,760 Min 80 Mean 1,787 Ac-ft 1,293,000

Discharge measurement made on this day.
152 MALHEUR RIVER BASIN

Malheur River near Drewsey, Oreg.

Location.--Lat 43°47', long. 118°20> , in SE£ sec. 31, T. 20 S., R. 36 E., on left bank 

300 ft downstream from crossing of Burns-Ontario highway, half a mile downstream 

from Cottonwood Creek, and 3 miles southeast of Drewsey.

Drainage area. 982 sq mi.

Records available. June 1920 to September 1921, April to September 1923, June 1926 to 

September 1951. March to September 1914 at site 13 miles upstream; records not equivalent owing to inflow from several creeks.

Gage.--Water-stage recorder. Datura of gage is 3,479.03 ft above mean sea level, datum of 

~1929, supplementary adjustment of 1947. June 1, 1920, to Sept. 4, 1921, water-stage 

recorder or staff gage at site half a mile downstream at different datum. Apr. 26, 

1923, to June 6, 1939, water-stage recorder at site 7 miles downstream at different 

datum.

Average discharge.--25 years (1926-51), 158 cfs.

Extremes.--Maximum discharge during year. 2,260 cfs Feb. 8 (gage height, 8.84 ft); maximum 

gage height, 9.18 ft Feb. 5 (ice jan); minimum discharge, 0.9 cfs Aug. 20-24.

1920-21, 1923, 1926-51: Maximum discharge, 4,290 cfs Feb. 27, 1940 (gage height, 

11.35 ft), from rating curve extended above 2,500 cfs; no flow at times.

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

which are poor. Diversions for irrigation of about 15,000 acres above station.

Revisions (water years). W 1093: 1927.

Rating table, water year 1950-51, except periods of Ice effect (gage

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

(Backwater from diversion dam Sept. 28-30)

0.4

3.0

9.0

17

3.2 

3.5

4.0

121

235

520

855

1,770

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

11

12

13

15

22

22

29

27

27

27

29

*27

*24

21

25

32

35

40

44

49

45

43

43

43

43

46

58

60

62

66

64

1,104

35.6

2,190

Nov.

60

68

108

84

70

66

65

64

66

58

46

65

71

66

68

64

70

70

74

73

70

70

62

62

66

66

66

65

64

71

-

2,038

67.9

4,040

Dec.

73

*65

64

76

81

91

192

185

171

205

169

142

136

123

192

282

171

153

13i

12§

119

110

102

106

97

91

81

79

91

102

102

3,910

126

7,760

Jan.

73

86

93

88

79

b60

b66

b52

b46

71

b76

b76

b72

*84

93

b80

91

95

b80

b74

81

88

98

121

240

215

b!90

b!60

b80

b85

b85

2,978

96.1

5,910

Feb.

b65

b60

89

110

bSOO

708

1,700

1,690

1,340

1,470

1,360

974

662

466

400

337

288

268

212

215

212

201

187

169

182

149

138

bllO

_

-

14,562

520

28,880

Mar.

b!20

*b!30

bllO

129

b!20

b!20

b!20

b!30

b!30

b94

b86

blZ5

140

173

288

648

379

292

325

628

1,060

934

634

648

841

838

824

726

*670

687

586

12,735

411

25,260

Apr.

592

687

799

*910

1,050

1,220

1,300

,310

,520

,280

,190

,110

,110

,160

,170

1,060

966

894

841

778

698

601

544

493

454

415

373

367

565

496

-

25,753

858

51,080

May

409

370

328

302

305

292

280

302

298

280

292

400

424

376

319

272

248

245

235

235

232

215

208

215

212

201

194

192

194

187

169

8,431

272

16,720

June

155

134

112

98

112

112

112 102-

98

88

a80

*68

64

»65

62

58

60

59

49

46

43

57

35

29

27

26

16

6.6

9.0

5.4

-

1,988.0

66.2

3,940

July

7.8

8.4

8.4

6.6

7.2

7.8

7.8

7.8

7.2

7.2

7.8

6.6

4.2

2.7

2.5

2.5

2.5

2.2

2.2

2.2

2.2

2.7

2.7

2.7

2.7

2.5

2.2

2.2

2,2

2.0

275

137.7

4.44

273

Aug.

2.0

2.0

2.0

2.2

2.2

2.0

*1.7

1.7

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.2

1.4

1.4

1.2

_._9

.9

.9

.9

.9

1.2

1.4

2.2

2.7

277

a2.7

a2.7

50.9

1.64

101

Sept.

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

a2.5

»2.5

3.6

5-i

79.0

2.63

157

Calendar year 1950: Max 994 Mln 3.6 Mean 152 Ac-ft 110,100

Water year 1950-51: Max 1,700 Min 0.9 Mean 202 Ac-ft 146,300

Peak discharge (base. 800 cfs).--Feb. 5 (8 p.m.) 1,380 cfs (7.22 ft): Feb. 8 (2 a.m.) 2,260 cfs 

(8.84 ft); Mar. 21 (10 a.m.) 1,120 cfs (6.66 ft); Mar. 25 (3 to 7 p.m.) 890 cfs (6.1O ft); Apr. 8 

(8 p.m.) 1,460 cfs (7.38 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge interpolated.

b Stage-discharge relation affected by ice.
MALHEUR RIVER BASIN 153

Malheur River below Warmsprings Reservoir, near Riverside, Oreg.

Location.--Lat 43°34', long. 118°12', in SW£ sec. 17, T. 23 S., R. 37 E., on left bank 

1 mile downstream from Warmsprings Dam, 3 miles upstream from South Fork, and 4 miles 

northwest of Riverside.

Drainage area. 1,100 sq mi, approximately.

Records available.--January 1906 to September 1910, December 1914 to July 1917, March 1919 

to September 1951 in reports of Geological Survey. October 1910 to November 1914 in 

reports of State engineer.

Gage. Water-stage recorder and concrete control. Prior to Dec. 9, 1914, staff or chain 

gages at several sites 3 miles downstream, 200 ft upstream from South Fork, at various 

datum. Dec. 9, 1914, to July 24, 1917, water-stage recorder at site 1 mile upstream 

and 500 ft upstream from dam site at different datum. Mar. 18, 1919, to Apr. 27, 1920, 

staff gage at site 1 mile upstream and 250 ft downstream from dam at different datum. 

Apr. 28, 1920, to Sept. 28, 1949, staff or hook gage and concrete control at present 

site and datum.

Average discharge. 39 years (1909-16, 1919-51), 172 cfs.

Extremes. Maximum discharge during year, 515 cfs Apr. 26, 27 (gage height, 4.91 ft); minimum daily, 0.5 cfs Oct. 15 to Apr. 12.

1906-17, 1919-51: Maximum discharge observed, 5,490 cfs Mar. 2, 1910 (gage height, 

10.7 ft, site and datum then in use), from rating curve extended above 820 cfs; no flow 

at times.

Remarks.--Records good except those affected by backwater from beaver dam, which are poor. 

Flow completely regulated since November 1919 by Warmsprings Reservoir (see p. 158 ). 

Diversions for irrigation of about 16,000 acres above station.

Revisions (water years). W 833: 1936. W 1063: 1942-45.

Rating table, .water year 1950-51, except period of backwater 

from beaver dam (gage height, In feet, and discharge, in 

cubic feet per second)

2.7

2.8 

3.0 

3.2 

3.4

0.6

2.0

7.0

16

30

165

315

560

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

32

35

39

43

46

50

56

60

62

ii

36

6

3

**1

> .5

541.5

17.5

1,070

Nov.

0.5

-

15.0

0.5

30

Dec.

0.5

15.5

0.5

31

Jan.

. 0.5

15.5

0.5

31

Feb.

0.5

_

-

14.0

0.5

28

Mar.

0.5

15.5

0.5

31

Apr.

> 0.5

84

158

209

234

302

370

400

455

480

485

485

490

490

505

510

510

510

485

-

7,168.0

239

14,220

May

440

415

415

410

410

410

410

405

405

405

405

356

266

230

230

230

230

234

*234

230

270

365

450

480

500

510

510

510

495

490

460

11,810

381

23,420

June

420

410

410

385

315

238

165

153

*165

155

165

165

165

220

315

360

360

*360

370

415

420

420

420

420

420

420

420

420

435

440

-

9,956

332

19,750

July

440

435 435"

435

435

430

430

430

48O

490

445

425

425

460

475

485

485

485

490

490

490

485

485

465

450

455

440

425

410

395

395

14,000

452

27,770

Aug.

400

395

420

435

435

430

*425

435

435

430

435

435

435

430

435

430

435

435

440

440

435

450

460

460

460

460

425

405

400

375

356

13,276

428

26,330

Sept.

356

351

351

356

360

390

390

390

385

385

385

380

365

356

356

360

360

365

356

338

338

324

315

297

292

274

*270

258

238

250

-

10,171

339

20,170

Calendar year 1950: Max 556 Min - Mean 142 Ac-i't 102,600

Water year 1950-51: Max 510 Min - Mean 184 Ac-ft 132,900

* Discharge measurement made on this day.

** Field estimate made on this day.

Note.--Backwater from beaver dam Oct. 12 to Apr. 12.
154 MALHEUR RIVER BASIN

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

Location.--Lat 43°58', long. 118°11', in sec. 33, T. 18 S., R. 37 E., on left bank 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 sq mi.

Records available.--January to September 1914, Jane 1936 to September 1951. Published as 

"at Scott's Hanch, near Beulah" in 1914.

Gage. Water-stage recorder. Jan. 1 to Sept. 30, 1914, staff gage at same site at different datum.

Average discharge.--15 years, 122 cfs.

Extremes.--Maximum discharge during year, 662 cfs Apr. 14 (gage height, 2.98 ft); minimum, 

27 cfs Jan. 29, but may have been less during periods of ice effect or no gage-height 

record.

1914, 1936-51: Maximum discharge recorded, 1,010 cfs Feb. 12, 1947; maximum gage 

height, 4.60 ft Mar. 26, 1940; minimum discharge recorded, 12 cfs Jan. 27, 1948, but 

may have been less at times during periods of ice effect.

Remarks. Records good October and April to September, poor November to March. Diversions 

for irrigation of about 900 acres above station.

Revisions (water years). W 883: 1938(M). W 1093: 1944(m).

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

Oct. 1 to Mar. 31

0.3 

.6 

l.O 

1.5 

2.0

193

310

Apr. 1 to Sept. 30

0.4 31

1.0 

1.5 

2.0 

3.0

S3 

111 

213 

343 

67O

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

65

68

73

73

80

83

70

59

55

53

52

*50

50

*53

52

52

53

63

57

54

53

53

52

50

53

59

64

67

76

69

59

1,870

60.3

3,710

Nov.

56

77

68

61

56

54

52

50

b45

b40

b45

b55

54

57

49

55

55

55

54

49

50

52

53

54

54

54

54

55

54

54

-

1,621

54.0

3,220

Dec.

54

*47

a45

a50

a60

a70

a65

a60

a70

a65

360-

355

a55

a70

alOO

a90

a85

380

375

a70

368

365

360

a65

360

355

350

345

a55

360

a55

1,964

63.4

3,900

Jan.

a50

a60

a50

a55

a40

a30

a35

a40

b50

b6O

b75

b65

b60

b65

*b72

57

57

58

59

47

65

70

67

64

70

67

62

61

42

b40

b35

1,728

55.7

3,430

Feb.

b50

b70

b95

109

138

121

242

167

a220

a500

a280

aZ60

a230

a 180

a 140

allO

a 90

7O

53

67

62

61

61

56

64

40

59

45

_

-

-

3,440

123

6,820

Mar.

53

55

*41

54

54

53

54

53

a45

a40

a48

55

57

59

120

104

a90

a!50

a230

a500

a28O

a230

a200

a230

a250

a250

a250

a240

a230

a210

a230

4,315

139

8,56O

Apr.

252

312

357

409

466

*518

542

564

564

539

504

508

550

616

6O2

556

525

508

487

454

394

354

332

310

291

275

267

346

340

296

-

13,038

435

25,860

May

270

252

232

232

225

223

247

265

262

254

302

329

3O2

275

250

232

225

227

*223

218

208

202

202

202

195

183

181

177

170

164

154

7,083

228

14,050

June

142

131

127

129

133

129

124

118

*111

allO

a!05

alOO

a94

a92

a90

*88

86

84

84

80

76

75

72

70

70

69

68

64

63

62

-

2,846

94.9

5,640

July

59

59

59

59

60

59

58

55

54

53

51

49

48

47

45

45

44

44

45

44

45

45

45

44

43

42

42

42

42

42

42

1,511

48.7

3,000

Aug.

42

41

40

40

40

40

*41

42

42

42

38

36

36

37

37

36

*37

36

36

36

37

40

40

38

36

36

36

39

43

45

42

1,207

38.9

2,390

Sept.

41

40

40

40

40

40

39

39

39

39

39

39

40

41

41

41

40

40

40

40

41

41

42

42

45

46

*44

43

44

46

-

1,232

41.1

2,440

Calendar year 1950: Max 495 Mln 32 Mean 121 Ao-ft 87,490

Water year 1950-51: Max 616 Mln 30 Mean 115 Ao-ft 83,020

Peak discharge (base. 400 efs).--Apr. 14 (4:3O a.m.) 662 cfs (2.98 ft). 

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of weather records, computed inflow to 

gency Valley Reservoir, and records for Malheur River near Drewsey. 

b Stage-discharge relation affected by ice.
MALHEUR RIVER BASIN 155

North Fork Malheur River at Beulah, Oreg.

Location.--Lat 43°54', long. 118°09i, in NE£ sec. 22, T. 19 S. , R. 37 E., on left bank at 

Beulah, a quarter of a mile downstream from Agency Valley Dam and 12 miles northwest 

of Juntura.

Drainage area.--420 sq mi, approximately.

Records available.--March 1909 to June 1912, November 1913 to July 1914, June 1926 to Sep-

 tember 1951. Published as "at Poley's Ranch, near Beulah" 1909-14 and as "near Beulah" 

June 1926 to September 1935.

Gage.--Water-stage recorder. Datum of gage is 3,262.47 ft above mean sea level, datum of

 1929. Mar. 21, 1909, to May 25, 1910, chain gage and May 26, 1910, to June 30, 1912, 

and Nov. 13, 1913, to July 25, 1914, staff gage, at site 6 miles downstream at different datum. June 26, 1926, to Dec. 21, 1935, water-stage recorder at site three-quarters 

of a mile downstream at different datum (below intake of two canals with combined capacity of about 10 cfs). Dec. 22, 1935, to Sept. 28, 1949, staff gage at present site 

and datum.

Average discharge.--16 years (1935-51), 127 cfs.

Extremes.--Maximum discharge during year, 422 cfs June 20 (gage height, 2.59 ft); no flow

 Mar. 8-22.

1909-12, 1913-14, 1926-51: Maximum discharge, 7,000 cfs (regulated by sudden storage release) May 7, 1942 (gage height, 8.4 ft, from floodmark); maximum unregulated, 

5,910 cfs Mar. 20, 1910; no flow at times; minimum prior to construction of dam, 5 cfs 

Dec. 28, 1910, Jan. 26, 27, 1911.

Remarks.--Records good except those below 40 cfs, which are poor. Flow regulated by 

Agency Valley Reservoir (see p. 158). Diversions for irrigation of about 2,400 acres 

above station; practically entire summer flow is diverted below station and above 

Juntura.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

.4

.2

1.0

4.0

11

0.6 

1.0 

1.5 

2.0 

3.0

30

78

165

275

540

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

58

58

60

64

67

75

70

67

63

61

60

*59

27

** .

'.2

.2

.1

1.6

792.7

25.6

1,570

Nov.

0.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

-

3.8

0.13

7.5

Dec.

0.2

**.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.i

.1

.1

.1

.1

.1

4.6

0.15

9.1

Jan.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

**.!

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

. i

. j^

_ i

.1

.1

.1

3.1

0.10

6.1

Feb.

0.1

.1

.1

.2

.2

.2

.2

 2

.2

.2

.2

.2

.2

.2

^3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

 2

Mar.

0.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

a

0

0

0

.1

.1.1

.1

.2 .1

.?

-

-

-

5.4

0.19

11

.1

.1

.1

.1

1.7

0.05

3.4

Apr.

0.2

.4

.5

.5

.7

.7

.7

.8

.8

64

109

179

185

185

185

187

187

187

185

187

228

265

265

265

290

318

318

320

290

275

-

4,679.3

156

9,280

May

245

209

171

139

121

121

123

123

169

228

235

171

*169

126

103

128

173

217

270

318

335

338

338

338

338

338

338

338

338

335

335

7,268

234

14,420

June

332

332

332

332

332

332

332

330

*330

330

308

270

255

255

255

*308

350

358

355

398

420

418

415

415

412

412

408

408

405

408

-

10,547

352

20,920

July

410

408

402

400

398

395

390

372

308

278

275

275

272

272

270

270

270

270

288

305

295

278

265

262

248

235

230

228

228

228

211

9,236

298

18,320

Aug.

201

219

235

235

235

235

*232

211

181

167

167

167

165

165

207

232

*228

225

225

225

225

223

223

207

197

197

195

177

165

167

155

6,288

203

12,470

Sept.

145

147

147

151

111

177

175

173

173

169

169

169

169

169

169

171

171

157

151

153

153

151

149

149

147

145

*143

141

139

137

-

4,736

158

9,390

Calendar year 1950: Max 446 Mln 0.1 Mean 137 Ac-ft 99,170

Water year 1950-51: Max 420 Mln o Mean 119 Ac-ft 86,4l6

Discharge measurement made on this day. 

* Field estimate made on this day.
!56 MALHEUR RIVER BASIN

Malheur River at Little Valley, near Hope, Oreg.

Location.--Lat 43°54', long. 117°30', in SEir sec. 24, T. 19 S., R. 42 E., on right bank 

500 ft downstream from bridge at Little Valley, 8 miles southwest of Hope, and 13 

miles southwest of Vale.

Drainage area. 3,010 sq mi, approximately.

Records available.--April 1949 to September 1951.

Gage. feter-stage recorder. Datum of gage is 2,424.12 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947.

Extremes.--Maximum discharge during year, 6,070 efs Feb. 8 (gage height, 7.80 ft); minimum, 

20 cfs Oct. 27 to Nov. 1, Nov. 4-12.

1949-51: Maximum discharge, that of Feb. 8, 1951; minimum, 20 cfs Oct. 27 to Nov. 1, 

Nov. 4-12, 1950.

The two greatest floods known occurred in March 1894 and March 1910. 

Revisions. The figures of maximum discharge for water years 1949 and 1950 have been 

revised to 1,470 cfs May 19, 1949 (gage height, 4.66 ft) and 2,750 cfs Feb. 24, 1950 

(gage height, 5.79 ft), superseding those published in Water-Supply Papers 1153 and 

1183, respectively.

Remarks. Records good except those for periods of ice effect, which are poor. ValeOregon Canal diverts at Namorf; no other large diversions above station, but many small 

ones. Flow regulated by Warmsprings and Agency Valley Reservoirs (see p. 158).

Revisions. Revised figures of discharge for high-water period in water year 1950 are given 

herewith. They supersede those published in Water-Supply Paper 1183.

Day 

(water year)

1949-50

28...... .....

Discharge 

(cfs)

450

Month

Water year 1949-50...

Cfs-days

45,796

Maximum

1,530

Minimum

24

Mean

12S

Runoff In 

acre -feet

12,120

90,840

Rating tables, water year 1950-51, except periods of Ice effect (gage 

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

Oct. 1 to Feb. 5

2.0 

2.5

56

170

3.0 

3.5 

4.3

340

570

1,030

1.9 

2.1 

2.5 

3.0

Feb. 6 to Sept. 30

45 3.5 580

8O 4.O 900

179 5.O 1,810

35O 6.5 3,760

Discharge, in cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Ac- ft

Oct.

34

33

34

35

35

36

40

40

45

*46

43

43

40

34

*32

28

26

24

22

22

22

22

22

22

22

22

22

21

21

20

£0

928

29.9

1,840

Nov.

21

22

21

20

20

20

20

21

20

20

20

23

30

35

38

39

39

39

40

38

39

39

40

40

39

39

39

39

40

42

-

942

31.4

1,870

Dec.

42

42

*45

48

50

58

67

67

69

.11

75

66

60

58

62

66

66

66

67

66

60

56

54

53

51

50

50

48

50

51

50

1,805

58.2

3,580

Jan.

46

53

51

53

51

45

b42

b40

b42

b44

b48

50

43

*46

53

48

48

56

60

46

58

62

67

67

201

336

265

b20O

b!50

b!20

blOO

2,591

83.6

5,140

Feb.

bllO

b!20

b!30

144

bl,000

2,700

5.730

3,610

1,600

1,210

1,030

781

628

460

350

286

244

212

191

171

154

148

141

133

128

120

113

106

-

_

-

19,750

705

39,170

Mar.

97

95

*84

80

82

82

90

97

128

120

113

101

99

80

179

1,180

S2l

418

326

435

688

724

495

354

314

314

296

282

265

258

171

8,868

286

17,590

Apr.

185

118

125

159

168

*154

151

138

108

84

76

76

84

108

222

278

241

251

268

238

235

231

244

238

241

268

289

289

300

303

-

5,870

196

11,640

Hay

278

248

191

157

143

125

115

101

97

111

151

228

171

1O8

74

61

51

47

48

58

97

128

222

268

278

289

300

?96

300

286

278

5,305

171

10,520

June

261

241

248

248

235

2O9

154

118

*93

93

95

95

90

86

I§

80

*127

212

219

219

238

258

255

265

272

289

268

251

231

244

-

5,772

192

11,450

July

261

265

255

278

282

275

268

265

265

258

238

20O

179

173

194

206

219

209

212

222

244

241

228

212

209

182

162

157

143

133

125

6,760

218

13,410

Calendar year 1950 : Max 1,530 win 20 Mean 126 Ac-ft 91,480

Aug.

Ill

95

90

ITS

157

*191

155

154

148

141

125

118

118

118

118

120

135

143

148

151

154

151

154

159

162

157

154

146

125

115

103

4,233

137

8,400

Sept.

80

80

74

72

70

70

80

97

106

108

1O8

108

111

TIT

108

1O6

101

101

97

90

80

80

78

76

74

*72

70

7O

69

63

-

2,610

87.0

5,180

Water year 1950-51: Max 3,730 mn 20 Mean 179 Ac-ft 129,800

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
MALHEUR RIVER BASIN 157

Bully Creek near Vale, Oreg.

Location. Lat 43°58', long. 117°21<, in SW£ sec. 33, T. 18 S., R. 44 E., on right bank 

5 miles southwest of Vale.

Drainage area.--602 sq mi.

Records available.--October 1945 to September 1951 in reports of Geological Survey. April 

1933 to May 1936 (fragmentary), March 1937 to September 1941 in reports of State engineer, and October 1941 to September 1945 in files of State engineer.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 2,317.7 ft (by 

"levels to reference point furnished by Union Pacific R. R.). Prior to March 1937

water-stage recorder or staff gage at site 3 miles upstream at different datum. Mar.

15, 1937, to Jan. 1, 1940, water-stage recorder at present site at datum 0.38 ft

higher.

Average discharge.--IS years (1933-34, 1937-51), 38.2 cfs.

Extremes.--Maximum discharge during year, 2,550 cfs Feb. 8 (gage height, 6.55 ft, from 

floodmark), from rating curve extended above 340 cfs on basis of slope-area determination of peak flow; minimum, 5 cfs Jan. 28.

1933-51: Maximum discharge, 3,400 cfs Feb. 27, 1940 (gage height, 6.60 ft), from 

rating curve extended above 1,000 cfs; no flow at times.

Remarks. Records good except those for periods of Ice effect, or backwater from moss and 

those for June, which are fair. Occasional fluctuations caused by releases from ValeOregon Canal, which diverts water for irrigation of lands west of Vale; considerable 

return flow at times enters Bully Creek above station. Diversions above station for 

irrigation of about 7,000 acres.

Revisions (water years). W 1183: 1946, 1947.

Rating table, water year 1950-51, except periods of ice effect or 

backwater from moss (gage height, in feet, and discharge, 

in cubic feet per second)

.7

1.0

1.3 

2.0 

2.9 

4.2

84

235

510

1,090

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

10 

28 

19

12

12

11

11

10

10

10

10

10

9

9

*8

21

16

13

12

12

13

13

12

14

17

16

16

19

21

20

12

426

13.7

845

Nov.

9 

9 

9

9

9

8

8

9

8

8

8

8

8

8

8

8

9

9

9

9

9

9

12-

247

8.2

490

Dec.

10 

9 

*10

11

10

12

11

13

12

11

11

11

10

11

12

12

12

12

12

10

11

11

12

12

11

12

12

12

12

12

12

354

11.4

702

Jan.

11 

13 

12

12

11

9

b8

b8

10

10

b9

11

10

*12

12

bll

b!2

13

blO

b8

blO

15

14

13

12

13

12

blO

b8

b7

b§

334

10.8

662

Feb.

li 

16

b!5

15

b75

417

874

* 1 . 080

478

*361

364

302

230

179

144

111

*88

75

61

54

53

46

44

40

37

32

*30

24

_

_

-

5,259

188

10,430

Mar.

20 

20 

b!6

b!7

b!7

b!6

14

12

12

blO

bll

15

15

15

16

210

T55

74

52

59

117

148

109

81

74

78

76

69

65

74

74

1,724

55.6

3,420

Apr.

65 

62 

66

81

70

94

*111

loT

90

69

52

31

18

15

15

15

15

14

13

13

14

12

13

13

11

8

9

14

38

13

-

1,157

38.6

2,290

May

11 

T?

13

13

14

14

14

17

13

12

16

44

33" 59

16

19

15

17

16

18

17

14

13

13

15

13'

13

14

13

14

15

540

17.4

1,070

June

15 

14 

15

15

a20

a40

a50

a35

a25

a20

a!9

a!8

a!7

a!6

a!6

15

*14

14

14

14

14

15

14

14

15

15

15

12

13

14

-

547

18.2

1,080

July

14

813

13

13

13

14

14

14

14

14

15

14

14

15

15

16

15

15

14

15

15

11

17

15

15

17

17

16

16

455

14.7

902

Aug.

15 

14 

14

14

*13

13

13

12

12

12

12

12

12

12

12

12

11

10

8

24

31

17

16

16

16

16

17

29

24

455

14.7

902

Sept.

ft

19

19

18

17

17

17

17

17

17

17

17

17

16

16

17

17

17

IS

17

18

18

18

19

*18

17

15

15

16

-

520

17.3

1,030

Calendar year 1950: Max 213 Mln 5 Mean 25.3 Ac-ft 17,100

Water year 1950-51: Max 1,080 Mln 7 Mean 32.9 Ac-ft 23,820

Peak discharge (base. 150 efs).--Peb. 8 (about 2 a.m.) 2,550 cfs (6.55 ft); Mar. 16 (1 p.m.) 755 

cfs (3.50 ft); toy 16 (10:30 a.m.) 153 cfs (1.64 ft).

* Discharge measurement made on this day. *

a No gage-height record; discharge estimated on basis of recorded range in stage and weather 

records.

b Stage-discharge relation affected by ice.

Note. Backwater from moss Oct. 1-17, July 5 to Sept. 30.
158 MALHEUR RIVER BASIN

Reservoirs In Malheur River basin, Oreg.

Warmsprings Reservoir. Lat 43 0 35', long. 118 0 12', in SE£ sec. 8, T. 23 S., R. 37 E., 

near right end of dam on Malheur River, 4 miles upstream from South Fork and 4 miles 

northwest of Riverside. Drainage area, 1,100 sq mi, approximately. Records available, January 1920 to September 1951. Tape gage read once daily April to September 

and once weekly October to April. Datum of gage is 3,327 ft above mean sea level 

(surveys of Bureau of Reclamation); gage readings have been reduced to elevations 

above mean sea level. Maximum contents observed during year, 121,400 acre-ft Apr. 26 

(elevation, 3,389.18 ft); no contents Oct. 1-11. Maximum contents observed during 

period 1920-51, 196,000 acre-ft Apr. 7, 1942 (elevation, 3,407.08 ft); no contents 

Sept. 18 to Nov. 1, 1929, Aug. 26 to sometime in November 1935, Sept. 18 to Oct. 11, 

1950.

Reservoir is formed by concrete-arch dam; capacity, 191,000 acre-ft between elevations 3,327 ft (bottom of outlet tunnel) and 3,406 ft (top of 5-foot flashboards). 

Dead storage, 1,400 acre-ft below elevation 3,327 ft. Records given herein represent 

contents above elevation 3,327 ft. Storage began in 1919. In 1926 a half interest in 

reservoir was purchased by the Federal Government for Vale project of Bureau of Reclamation. Water used to irrigate lands on both sides of river between Namorf and 

Ontario. Data for computing capacity table furnished by Bureau of Reclamation.

Agency Valley Reservoir.--Lat 43 0 55', long. 118 0 09', in SW£ sec. 15, T. 19 S., R. 37 E., 

in control house at dam on North Pork Malheur River, a quarter of a mile northwest of 

Beulah. Drainage area, 420. sq mi, approximately. Records available December 1935 to 

September 1951. Pressure gage with mercury column read once daily. Datum of gage is 

at mean sea level (surveys by Bureau of Reclamation); to obtain mean sea level datum 

of 1929, add 7.72 ft. Maximum contents observed during year, 54,240 acre-ft May 18 

(elevation, 3,336.93 ft); no contents Oct. 1-13. Maximum contents observed during 

period 1935-51, 62,770 acre-ft May 3, 1941 (elevation, 3,341.50 ft); no contents 

Sept. 17 to Oct. 13, 1950.

Reservoir is formed by earth-fill rock-faced dam; storage began in December 1935. 

Capacity, 59,920 acre-ft between elevations 3,263.21 ft (bottom of outlet tunnel) and 

3,340 ft (top of 17-foot spillway gates); with gates lowered the capacity is 32,220 

acre-ft. No dead storage. Water is used for Irrigation of lands below Juntura, on 

Vale project of Bureau of Reclamation. Capacity table furnished by Bureau of 

Reclamation.

Other reservoirs. There are several other reservoirs in the Malheur River basin, all 

with less than 3,500 acre-ft capacity except Willow Creek No. 3 Reservoir near 

Malheur, which has a capacity of 49,000 acre-ft.

Monthly elevation and contents, water year October 1950 to September 1951

Date

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

Calendar year 1950 . . .

Water year 195O-51 . . .

Warmsprings Reservoir

Elevation 

(feet)

:

-

3,377.5 

3,389.0 

3,386.30 

3,380.51 

3,369.45 

3,356.42

-

Contents 

(acrefeet)

0 

a2,370 

a6,900 

a!5,230

-

a21,650 

a54,840 

82,550 

120,800 

111,400 

92,130 

58,660 

27,840 

a5,200

-

Change in 

contents 

during month 

(acre-feet)

+2,370 

+4 , 530 

+8,330

+5,890

+6,420 

+33,190 

+27,710 

+38,250 

-9,400 

-19,270 

-33,470 

-30,820 

-22,640

+5,200

Agency Valley Reservoir

Elevation 

(feet)

3,285.50 

3,294.85 

3,301.87

-

3,306.50 

3,314.92 

3,323.45 

3,334.65 

3,335.00 

3,325.38 

3,311.93 

3,300.12 

3,286.50

-

Contents 

(acrefeet)

0 

'2,160 

6,010 

10,210

-

13,750 

22,130 

32,850 

50,210 

50,820 

35,570 

18,910 

9,050 

2,460

-

Change in 

contents 

during month 

(acre-feet)

+2,160 

+3,850 

+4,200

-5,550

+3,540 

+8,380 

+10,720 

+17,360 

+610 

-15,250 

-16,660 

-9,860 

-6,590

+2,460

a No gage-hi;ight record; contents interpolated.
PAYETTE RIVER BASIN 159

South Fork Payette River at Lowman, Idaho

Location. Lat 44°05'00", long. 115°37'30", in SW£ sec. 27, T. 9 N., R. 7 E. , 1,200 ft 

upstream from Rock Creek, half a mile northwest of Lowman and 4,100 ft downstream 

from Clear Creek.

Drainage area.--456 sq mi.

Records available.--May 1941 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 3,790 ft (from river-profile map). 

Frior to Dec. 18, 1941, staff gage st site 900 ft upstream at different datum.

Average discharge. 10 years, 873 cfs.

Extremes. Maximum discharge during year, 4,570 cfs May 28 (gage height, 6.44 ft); minimum, 163 cfs Jan. 29 (gage height, 2.46 ft).

1941-51: Maximum discharge, 5,250 cfs May 28, 1948 (gage height, 6.73 ft); minimum, 148 cfs Dec. 9, 1944 (gage height, 2.40 ft).

Remarks. Records excellent. No regulation. Several small diversions for irrigation and 

placer mining, the r^urn flow from which enters river above station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

2.6 

2.9 

3.2 

3.5 

4.0

203

323

488

705

1,160

4.5 

5.0 

5.5 

6.O 

6.4

1,710 

2,340 

3,050 

3,88O 

4,610

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

44O

434

428

428

44O

501

470

482

476

464

452

*446

44O

440

470

452

452

482

470

446

434

422

417

412

425

520

546

575 

705

748

665

14,985

483

1.06

1.22

29,720

Nov.

~G18 618

589

575

56O

546

534

575

488

458

494

476

458

458

446

446

47O

56O

534

514

546

501

476

464

464

476

476

*470 

458

470

-

15,218

5O7

1.11

1.24

30,180

Dec.

470

446

452

476

440

434

"464 488

446

440

428

440

434

422

44O

428

417

412

406

406

395

384

400

390

390

363

368

390 

395

39O

373

13,027

420

0.921

1.06

25,840

Jan.

3O5

368

368

373

363

287

258

333

378

378

373

338

358

358

358

*353

333

328

358

353

378

373

353

373

358

353

338

314 

210

?3T

242

10,444

337

0.739

0.85

20,720

Feb.

254

323

373

417

440

417

482

546

476

476

514

520

476

452

458

440

412

446

384

422

4O6

39O

39O

390

390

358

*378

373

-

-

11,803

422

0.925

0.96

23,410

Mar.

338

368

343

363

358

353

343

353

348

318

310

353

348

348

363

390

348

328

343

358

39O

400

384

395

44O

488

546

~5tt 

527

520

501

12,079

390

0.855

O.99

23,960

Apr.

534

596

79O

989

1,160

1,330

1,480

1,540

1,51O

1,510

1,440

*1,480

1,70O

1,910

1,98O

1,900

1,940

2.02O

2.04Q

1,960

1,770

1,64O

1,570

1,540

1,450

1,42O

1,470

1.77O 

1,930

1,720

-

46,O89

1,536

3.37

3.76

91,420

May

1,55O

1,400

1.55Q

1,370

1,49O

1,810

2,460

2,550

2,570

2,670

2,880

2,750

2,480

2,220

2,090

*2,190

2,470

2,82O

3,000

5,050

5,110

3,550

5,740

3,950

5,860

5,81O

4,130

4.500 

4,060

3,51O

2,990

86.16O

2,779

6.O9

7.03

170,900

June

2,550

2,4OO

2,220

2,170

2,280

2,200

2,050

1,910

1.840

1,880

2,110

*2,480

2,820

5,080

5,66O

4.200

4,130

3,860

3,620

3,460

3,550

5,150

2,800

2,690

2,650

2,610

2,550

2,550 

2,530

2,460

-

82.3OO

2,745

6.02

6.71

163,200

July

2,420

2.45O

2,350

2,420

2,260

2,050

1,960

1,910

1,840

1,820

1,690

*1,580

1,560

1,580

1,600

1,510

1,470

1,420

1,400

1,580

1,300

1,200

1,120

1,080

1,080

1,O4O

998

1,010 

1,160

1.O4O

98O

48,658

1,570

5.44

3.97

96,510

Aug.

"907 961

898

925

925

880

826

782

756

722

705

675

657

641

625

*603

589

575

567

567

582

611

689

697

618

575

555

56T. 

575

582

575

21,408

691

1.52

1.75

42,460

Sept.

560

540

52O

494

476

452

440

454

454

422

422

422

417

417

412

406

400

595

590

384

584

584

384

378

*412

454

400

395 

590

590

-

12,788

426

0.934

1.04

25,560

Calendar year 1950: Max 

Water year 1950-11: Max

4,290

4,500

Mln 

Mln

234

210

Mean 993 

Mean 1,027

Cfsm 

Cfsm

2.18 In. 29.55 Ac-ft 718,900 

2.25 In. 30.58 Ac-ft 743,700

Discharge measurement made on this day.
160 PAYETTE RIVER BASIN

Deadwood Reservoir near Lowman, Idaho

Location. Lat 44°18 I , long. 115"39', in SE£ sec. 8, T. 11 N., R. 7 E., at dam on Deadwood River, 15 miles north of Lowman.

Drainage area. 108 sq mi.

Records available. October 1935 to September 1951.

Gage.--Staff gage on face of dam read once daily. Datum of gage is at mean sea level 

Tlevels by Bureau of Reclamation). Datum of Geological Survey levels (1952, preliminary) is 22.8 ft higher.

Extremes. Maximum elevation observed during year, 5,334.7 ft June 29, 30; minimum observed, about 5,205.0 ft Sept. 18-30, reservoir drained for repairs.

1935-51: Maximum elevation observed, 5,337.1 ft June 1, 2, 1943; minimum observed, 

that of Sept. 18-30, 1951.

Remarks.--Reservoir is formed by concrete arch dam completed in 1930; storage began Nov. 

27T930. Reported capacity, 160,400 acre-ft between elevations 5,230.0 ft (minimum, 

operating level because of fish protection, 27 ft above sill of emergency gate in front 

of needle valve) and 5,334.0 ft (crest of spillway). Storage below elevation 5,230.0 

ft, about 1,500 acre-ft. Water is used to augment flow of Payette River at Black Canyon powerplant 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. Discharges of 29.0 cfs and 14.4 cfs were measured in this canal June 13 and 

July 11, respectively. Gage usually read 7 to 9 a.m.

Cooperation. Gage readings furnished by Bureau of Reclamation.

Elevation, In feet, water year October 1950 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.

322.0

320.8

319.65

318.5

317.4

316.4

315.45

314.6

313.5

312.5

311.5

310.5

309.45

308.5

307.8

307.0

306.85

306.9

 307.0

307.05

307.1

307.15

307.25

307.35

307.5

307.7

307.85

308.0

308.25

308.4

308.7

Nov.

308.85

309.0

309.15

309.3

309.45

309.5

309.6

309.75

309.85

309.9

309.95

310.0

310.05

310.1

310.2

310.3

310.4

310.55

310.7

310.85

311.0

311.15

311.25

311.35

311.4

311.45

311.55

311.6

311.7

311.8

-

Dec.

311.9

312.0

312.1

312.2

312.3

312.4

312.5

312.6

312.7

312.8

312.85

?12.9

313.0

313.1

313.15

313.2

313.3

313.4

313.5

313.6

313.65

313.7

313.75

313.8

313.85

313.9

313.95

314.0

313.9

313.8

313.7

Jan.

313.6

313.5

313.35

313.1

312.85

312.5

312.1

311.6

311.0

310.5

310.45

310.4

310.35

310.3

310.25

310.3

310.35

310.4

310.45

310.5

310.6

310.65

310.7

310.75

310.8

310.85

310.9

310.95

311.0

311.05

311.1

Feb.

311.15

311.2

311.25

311.3

311.4

311.45

311.6

311.7

311.8

311.9

312.0

312.1

312.15

312.2

312.25

312.35

312.4

312.45

312.5

312.55

312.6

312.65

312.7

312.75

312.8

312.85

312.9

312.95

_

-

Mar.

313.0

313.05

313.1

313.15

313.2

313.25

313.3

313.35

313.4

313.45

313.5

313.55

313.6

313.65

313.7

313.8

313.9

314.0

314.1

314.2

314.3

314.4

314.5

314.6

314.7

314.85

315.0

315.1

315.2

315.3

315.4

Apr..

315.55

315.7

315.8

315.95

316.15

316.35

316.55

316.7

316.95

317.25

317.4

317.75

318.1

318.5

318.85

319.15

319.6

320.05

319.95

319.95

319.9

319.85

319.75

319.45

319.1

318.7

318.35

318.0

318.0

317.7

May

317.4

317.05

316.65

316.65

316.9

317.4

318.0

318.7

319,4

320.2

321.0

321.9

322.7

323.3

323.9

324.45

325.1

325.8

326.6

327.4

328.2

329.1

330.0

331.0

331.9

332.3

332.6

332.9

333.2

333.3

333.4

June

333.3

333.2

333.0

332.8

332.65

332.7

332.7

332.6

332.6

332.6

332.8

333.0

333.25

333.4

333.6

333.75

333.85

333.9

333.9

333.95

334.3

334.3

334.3

334.3

334.3

334.45

334.55

334.65

334.7

334.7

v/uly

334.45

334.25

334.2

334.2

334.3

334.35

334.3

334.3

334.3

334.35

334.4

334.4

334. 45

334.45

334.3

334.2

334.3

334.35

334.1

333.15

332.05

332.0

331.0

329.9

328.7

327.6

326.45

325.3

324.2

323.0

321.8

Aug.

320.85

319.9

318.95

318.0

316.9

316.0

315.0

314.0

313.0

311.95

310.8

309,7

308.5

307.2

305.8

304.3

302.9

301.5

300.0

298.5

297.0

295.5

293.9

292.7

291.3

289.8

288.1

286.4

285.0

283.6

282.1

Sept.

280.6

278.9

277.5

275.7

274.0

272.2

269.7

267.6

264.9

262.8

259.9

256.1

252.3

247.6

242.1

235.7

226.5

_

-

._

_

_

_

-

_

_

_

_

_

-

Note. Add 5,000 ft to obtain elevation above mean sea level.
PAYETTE RIVER BASIN 

Deadwood River below Deadwood Reservoir, near Lowman, Idaho

161

Location. Lat 44°18', long. 115°39', in NE£ sec. 17, T. 11 N., R. 7 E., on right bank 

300 ft upstream from Wilson Creek, a quarter of a mile downstream from Deadwood Dam 

at lower end of Deadwood Basin, 15 miles north of Lowman, and 18 miles upstream from 

mouth.

Drainage area. 108 sq mi.

Records available. October 1926 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 5,181.52 ft above mean sea level (levels 

by Bureau of Reclamation). Prior to June 22, 1935, water-stage recorder at site 600 

ft upstream at datum 4.85 ft higher. June 22 to Sept. 30, 1935, staff gage at site 20 

ft upstream at datum 1.00 ft higher.

Average discharge. 24 years (1927-51), 209 cf s .

Extremes. Maximum discharge during year, 1,890 cfs July 22 (gage height, 5.37 ft); minimum daily, 5 cfs many days during period of no gage-height record when gates in dam were 

closed.

1926-51: Maximum discharge, 2,150 cfs May 26, 1928 (gage, height, 5.67 ft, site and 

datum then in use); no flow or" small amount of leakage from reservoir for long periods 

during 1934-37 when gates in dam were closed.

Remarks.--Records good except those below 10 cfs, which are poor. Flow regulated since 

Nov. 2, 1930, by Deadwood Reservoir (see preceding page).

Revisions (water years). W 1123: 1943.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

.5

.7

1.0

1.5

11

24

50

132

2.0 

2.5 

3.0 

4.0

5.4

242

377

540

970

1,890

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

1.720

1,630

1,580

1,570

1,450

1,310

1,260

1,310

1,280

1,250

1,240

1,240

1,240

941

757

501

138

6

6

6

6

7

7 

7

7

7

7

7

7

7

7

20,511

662

40,680

Nov.

6

6

6

6

6

6

6

6

6

6

6

5

5

5

5

5

5

6

6

6

6

6

6 

6

6

6

6

6

6

6

174

5.8

345

Dec.

6

6

6

5

5

5

5

5

5

6

6

6

6

6

6

6

6

6

6

6

6

6

6 

6

6

6

6

120

216

216

218

926

29.9

1,840

Jan.

218

356

454

454

508

548

661

740

682

322

102

102

102

102

42

6

6

6

6

6

6

6

6 

6

6

6

5

5

5

5

5

5,484

177

10,880

Feb.

5

5

5

5

5

5

5

5

5

e_

6

6

6

6

6

6

5

5

5

5

5

5

5

5

5

5

5

5

-

_

-

147

5.2

292

Mar.

5

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

*5

6

6

T_

169

5.5

335

Apr.

7

7

7

7

7

7

6

6

6

6

6

6

6

6

6

6

6

378

629

625

629

629

814 

'5?6 946

946

941

936

936

936

-

10,399

347

20,630

May

936

936

646

325

6

6

6

6

6

6

6

6

6

6

J5

5

5

5

5

5

5

5

*5 

5

479

1.010

1,010

1,010

1,000

1,000

1,000

9,462

305

18,770

June

1,000

1,000

1,000

1,000

869

819

762

621

574

484

438

*441

605

682

806

980

1.050

1,030

916

548

533

922

727 

723

487

426

457

480

497

822

-

21,679

723

43,000

July

879

614

515

392

360

444

404

360

272

252

*262

264

270

419

451

164

81

389

1,410

1,780

825

1,160

1.870 

1,850

1,830

1,830

1,830

1,820

1,800

1,800

1,540

28,137

908

55,810

Aug.

1,470

1,380

1,390

1,520

1,420

1,330

1,330

*1,380

1,400

1,420

1,450

1,500

1.610

1,610

1,590

1,580

1,570

1,560

1,550

1,540

 1,520

1,510

1,340 

1,210

1,350

1,460

1,450

1,260

1,150

1.140

1,140

44,130

1,424

87,530

Sept.

1,140

1,130

,120

,120

,180

,200

,180

.210

1,210

1,190

1,150

1,150

1,140

1,120

1,070

916

487

88

81

U>

78

80

80

76

106

*109

88

85

83

83

-

19,825

661

39,320

Calendar year 1950 : Max 1,750 Mln - Mean 254 Ac-i't 184,200

Water year 1950-51 : Max 1,870 Mln 5 Mean 4*1 Ac-ft 319,400

* Discharge measurement made on this day.

Note.--No gage-height record Oct. 18 to Dec. 27, Jan. 16 to Apr. 17, May 5-24 except for staff-gage 

readings made about onoe weekly when gates were closed; discharge interpolated.
162 PAYETTE RIVER BASIN

Deadwood River near Lowman, Idaho

Location. Lat 44°05' , long. 115°40 I , in sec. 29, T. 9 N., R. 7 E., on left bank 700 ft 

upstream from mouth and 2^ miles west of Lowman.

Drainage area. 230 sq mi, approximately.

Records available. August 1921 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,680 ft (from topographic map).

Average discharge. 30 years, 388 cfs.

Extremes. Maximum discharge during year, 2,110 cfs May 27 (gage height, 3.96 ft); minimum, 40 cfs Jan. 29 (gage height, 0.93 ft); minimum daily, 65 cfs Jan. 29.

1921-51: Maximum discharge, 4,230 cfs May 9, 1928 (gage height, 5.17 ft), from 

rating curve extended above 3,200 cfs; minimum recorded, 28 cfs Nov. 4, 1935 (gage 

height, 0.83 ft); minimum daily, 34 cfs Nov. 4, 1935.

Remarks. Records good except those for periods of ice effect, which are fair. Plow regulated since Nov. 2, 1930, by Deadwood Reservoir (see p. 160 ). 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.

Rating table, water year 1950-51, except periods of ice effect 

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

1.1 

1.3 

1.6 

2.0

58

91

164

319

2.5 

3.0 

3.5 

3.9

606

995

1,530

2,090

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

1.760 

1,690

1,610

1,610

1,540

1,430

1,360

1,380

1,380

1,330

1,330

*1,340

1,330

1,140

889

724

426

124

106

95

89

86

84

84

84

110

126 

136

180

183

156

23,912

771

47,430

Nov.

131 

136

129

119

114

110

108

119

106

§T_

106

102

93

93

91

89

99

131

129

110

119

110

106 

102

102

99

99 

*99

97

102

-

3,237

108

6,420

Dec.

108

95

95

114

104

89

117

110

102

99

99

99

95

89

99

102

95

91

89

91

91

87

89 

91

87

80

84 

b!30

b350

b340

339

3,750

121

7,440

Jan.

329 

418

587

593

620

667

696

848

815

561

196

190

186

196

*183

91

78

80

84

86

86

91

82 

93

95

84

87 

77

b65

bTO

b72

8,406

271

16,670

Feb.

b80

b90

blOO

106

108

117

b!25

129

134

147

150

139

136

131

114

112

112

95

104

99

95

95 

99

99

86

*99 

99

_

-

3,075

110

6,100

Mar.

84 

102

87

95

97

97

82

87

87

89

89

104

86

89

93

112

93

82

93

97

108

112

108 

110

126

139

150

144

153

147

139

3,281

106

6,510

Apr.

156 

186

252

324

396

464

512

542

536

530

524

*555

626

710

739

724

739

1,010

1,410

1,380

1,290

1,240

1,330 

1,480

1,470

1,470

1,490 

1,700

1,730

1,570

-

27,085

903

53,720

May

1,480 

1,430

1,210

942

606

732

950

1,040

1,070

1,140

1,170

1,060

924

815

769

*823

933

1,020

1,060

1,040

1,040

1,090

1,180 

1,170

1,420

2,020

2.030 

2,020

1,910

1,830

1,700

37,624

1,214

74,630

June

1.630 

1,570

1,530

1,510

1,490

1,410

1,320

1,180

1,080

995

942

995

*1,080

1,280

1,400

1,570

1,620

1,600

1,470

1,150

950

1,380

1,170 

1,130

942

784

808 

815

815

1,010

-

36,626

1,221

72,650

July

1,150 

942

777

703

626

654

660

593

530

475

475

*475

469

548

626

467

409" 261

1,330

1,860

1,330

884

1,880 

1,880

1,880

1,880

1,870 

1,860

1,860

1,840

1,650

32,844

1,059

65 , 150

Aug.

1,490 

1,430

1,450

1 ,'520

1,510

1,400

1,390

1,420

1,450

1,460

1,480

1,520

1,610

1,610

1,610

*1,580

1,580

1,570

1,560

1,540

1,560

1,540

1,460 

1,330

1,380

1,490

1,490 

1,390

1,260

1,240

1.250

45,550

1,469

90,350

Sept.

1,220 

1,220

1,210

1,200

1,230

1,280

1,260

1,290

1.310

1,280

1,240

1,230

1,230

1,210

1,160

1,030

754

203

177

174

177

177

174 

174

*190

232

183 

170

167

167

-

22,719

757

45,060

Calendar year 1950: Max 2,390 Mln 60 Mean 502 Ac-l't 363,500

Water year 1950-51: Max 2,030 Mln 65 Mean 680 Ac-ft 492,100

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
PAYETTE RIVER BASIN 163

South Pork Payette River near Garden Valley, Idaho

Location. Lat 44°04', long. 115°56' , in sec. 1, T. 8 N., R. 4 E., at Garden Valley ranger 

station, 300 ft upstream from Station Creek, 2.7 miles southeast of Garden Valley, and 

5.9 miles upstream from Middle Pork.

Drainage area. 779 sq mi.

Records available.--May 1921 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,090 ft (from river-profile map). Prior 

To Aug. 3, 1926, staff gage at same site at datum 0.98 ft higher. Aug. 3, 1926, to Dec. 

5, 1933, staff gage at present site and datum.

Average discharge. 27 -years (1924-51), 1,263 cfs.

Extremes. Maximum discharge during year, 7,350 cfs May 28 (gage height, 6.31 ft); minimum, 348 cfs Jan. 29 (gage height, 1.55 ft).

~~"~ 1921-51: "" Maximum discharge observed, 10,600 . cfs May 26, 1928 (gage height, 8.0 ft);

minimum, 75 cfs Dec. 15, 1935, Jan. 26, 1936 (gage height, 0.70 ft) 

extended below 280 cfs; minimum daily, 196 cfs Dec. 10, 1944.

from rating curve

Remarks. Records good. Practically no diversion above station, 

has been regulated by Deadwood Reservoir (see p. 160 ).

Since Nov. 2, 1930, flow

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

1.6 

2.0 

2.5 

3.0

376

644

1,070

1,580

3.5 

4.0 

5.0 

6.3

2,220

2,980

4,710

7,330

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

2.500

2,230

2,120

2,110

2,080

2,000

1,860

1,880

1,910

1,830

1,820

1,810

*1,800

1,650

1,390

1,230

917 

622

606

576

569

555

548

541

548

660

708

764

873

971

873

40,351

1,302

80,040

NOV.

805

814

781

748

732

716

700

756

668

576

652

644

614

606

599

592

614 

732

748

676

740

684

644

622

614

622

*629

622

614

622

-

20,186

673

40,040

Dec.

644

599

592

660

622

576

676

652

629

614

614

606

606

592

599

606

584 

576

569

569

562

541

562

555

548

507

487

534

781

773

748

18,783

606

37,260

Jan.

668

764

998

998

998

1,010

b980

bl,160

1.240

1,09O

629

592

584

592

*614

541

514 

487

514

521

528

534

514

528

534

521

500

449

394

b440

b480

20,916

675

41,490

Feb.

b520

548

555

534

548

487

676

839

773

764

814

864

797

732

724

692

629 

652

576

599

592

562

555

555

555

514

528

*534

-

-

-

17,718

633

35,140

Mar.

487

521

494

521

521

507

500

494

507

468

430

507

514

521

534

622

548 

507

541

562

592

644

622

629

692

756

848

822

830

848

805

18,394

593

36,480

Apr.

"974 848

1,170

1,46O

1,74O

2,030

2,280

2,390

2,320

2,360

2,210

2,290

*2,540

2,930

3,080

2,980

3,010 

3,330

3,830

3,720

3,420

3,190

3,200

3,370

3,220

3,200

3,280

3,810

4.120

3,760

-

82,032

2,734

162,700

Hay

3,450

3,200

2,920

2,600

2.290

2,740

3,690

3,980

4,000

4,160

4,470

4,270

3,830

3,400

3,120

*3,250

3,670 

4,140

4,410

4,470

4,480

4,790

5,370

5,61O

5,670

6,390

6,720

7.250

6,830

6,070

5,390

136,630

4,407

271,000

June

4,860

4,500

4,250

4,160

4,270

4,120

3,860

3,560

3,330

5.27O

3,320

3,740

*4,250

4,730

5,450

6,290

6.410 

6,170

5,810

5,270

4,820

5,050

4,470

4,270

4,050

3,780

3,710

3,740

3,710

3,810

-

133,030

4,434

263,900

July

5.950

3,780

3,490

3,450

3,190

3,000

2,92O

2,740

2,600

2,460

2,380

2,210

*2,140

2,220

2,360

2,160

1.830 

1,850

2,820

3,520

3,050

2,010

3,270

3,220

3,200

3,170

3,110

3,120

3,270

3,140

2,930

88,560

2,857

175,700

Aug.

2,660

2,540

2,520

2,680

2.710

2,460

2,42O

2,390

2,380

2,330

2,360

2,350

2,460

2,450

2,400

2,390

*2,360 

2,330

2,320

2,300

2,300

2,320

2,330

2,190

2,110

2,250

2,220

2,110

1,900

1,880

1.850

72,270

2,331

143,300

Sept.

1,820

1,810

1,780

1,760

1,780

1.850

1,800

1,800

1,830

1,80O

1,760

1,740

1,740

1,700

1,660

1,540

1,300 

684

592

584

569

576

576

569

592

*700

606

584

562

562

"

37,206

1,240

73,800

Calendar year 1950 : Max 7,220 Mln 310 Mean 1,638 Ac-ft 1,186,000

Water year 1950-51 : Max 7,250 Mln 394 Mean 1,880 Ac-ft 1,361,000

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
164 PAYETTE RIVER BASIN

South Fork Payette River near Banks, Idaho

Prior

Location.- -La t 44°05'30", long. 116°06'00", in sec. 28, T. 9 N., R. 3 E. , on right bank 

1 mile upstream from North Pork Payette River and 1^ miles northeast of Banks .

Drainage area . --1 .200 sq mi, approximately. 

Records available . August 1921 to September 1951.

Gage. --Water-stage recorder. Altitude of gage is 2,805 ft (from river-profile map). 

fo Sept. 12, 1922, staff gage at same site and datum.

Average discharge. 30 years, 1,679 cfs.

Extreme's . --Maximum discharge during year, 8,820 cfs May 28 (gage height, 8.63 ft); minimum, 355 cfs Jan. 30 (gage height, 0.25 ft).

1921-51: Maximum discharge, 13,800 cfs May 17, 1927 (gage height, 10.6 ft, from 

floodmarks); minimum, about 225 cfs Dec. 15, 1935, Jan. 26, 1936, Dec. 26, 1939.

Remarks. --Re cords excellent except those for period of no gage-height record, which are 

fair. Small diversions above station for irrigation. Since Nov. 2, 1930, flow has 

been regulated by Deadwood Reservoir (see p. 160 ) .

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, in cubic feet per second)

0.4

1.0 2.0

3.0

420 720

1,370

a, 130

4.0 

6.0 

8.6

3,030

5,350

8,770

Discharge,

Day

1 

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

m2,240

2,240

2,240

2,190

2,030

2,030

2,070 

1,990

1,970

1,950

*1,950

1,860

1,550

1,430

1,110

828

804

744

714

698 

687

676 6"9"2

860

924

1,030

1,170

1,320

1,170

45,947

1,482

91,130

Nov.

1,070

1J050

996

957

931

912

996

898 

732

846

840

792

792

780

768

822

950

1,010

879

944

886 

834

804

792

810

822

*810

798

828

-

26,469

882

52,500

Dec.

872 

792

798

905

886

786

944

931

879 

866

860

866

860

828

866

872

828

810

798

798

786

750 

768

768

756

704

682

732

*964

1.020

970

25,945

837

51,460

'/Jan.

840 

938

1,210

1,220

1,190

1,170

1,050

1,370

1.480 

1,36(3

866

834

786

798

822

762

714

709

720

714

726

744 

698

750

774

750

732

643

474

452

560

26,856

866

53,270

Feb.

a650 

aT2o

a760

a76o

aSOO

a750

al.OOO

al,500

al,400 

al,500

al,600

«1.650

1,560

1,380

1,290

1,200

1,080

1,110

964

996

964

912 

905

898

898

810

816

 846

.

-

29,719

1,061

58,950

Mar.

744 

804

750

780

792

780

774

750

768 

687

648

738

768

780

822

1,020

892

810

872

944

1,040

1,140 

1,080

1,110

1,250

1,380

1,540

1,510

1,530

1 .590

1,510

30,603

987

60,700

Apr.

1.610 

1,850

2,300

2,800

3,290

3,870

4,200

4,310

4,140 

4,170

3,890

3,940

 4,310

4,920

5,130

4,930

4,920

5,240

5,720

5,520

5,000

,600 

,520

,690

,510

,500

,660

5,600

6.250

5,540

-

130,930

4,364

259,700

May

4,990 

4,560

4,220

3,920

_3.680

4,240

5,370

5,950

5,960 

6,130

6,510

6,230

5,650

5,050

4,650

4,750

*5,220

5,750

6,060

6,120

6,090

6,380 

7,030

7,300

7,230

7,900

8,230

6.710

8,270

7,370

6,550

186,070

6,002

369,100

June

5,870 

5,460

5,120

4,980

5,210

5,070

4,760

4,410

4,110 

4.030

4,070

4,500

5,060

 5,560

6,250

7,130

7.260

6,960

6,560

6,050

5,550

5,700 

5,120

,860

,640

,300

,220

,210

,170

,190

-

155,380

5,179

308,200

July

4.370 

4,200

3,880

3,900

3,620

3,360

3,290

3,080

2,970 

2,800

2,760

2,560

*2,490

2,510

2,660

2,500

2,140

2,110

2,850

3,620

3,370

2.060 

3,420

3,360

3,350

3,290

3,230

3,220

3,350

3,240

3,070

96,630

3,117

191,700

Aug.

2,810 

2,700

2,660

2,800

2.870

2,620

2,560

2,510

2,510 

2,460

2,480

2,450

2,560

2,550

2,520

2,480

*2,440

2,430

2,410

2,400

2,390

2,420 

2,470

2,410

2,240

2,380

2,340

2,300

2,090

2,070

2.030

76,360

2,463

151,500

Sept.

1.990 

1,960

1,930

1,910

1,910

1,970

1,940

1,920

1,970 

1,940

1,900

1,870

1,870

1,820

1,790

1,670

1,480

879

726

709

698

704 

704

698

709

*872

774

732

714

714

-

41,473

1,382

82,260

Calendar year 1950: Max 8,990 Mln 440 Mean 2.2O5 Ac-I't 1,596,000

Water year 1950-51 : Max 8,710 Mln 452 Mean 2,390 Ac-ft 1,730,000

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for station 

near Garden Valley.
PAYETTE RIVER BASIN 165

Payette Lake at McCall, Idaho

Locatlon.--Lat 44°55 T , long. 116°07', in sec. 8, T. 18 N., R. 3 E., at outlet of lake 

on North Fork Payette River, at McCall.

Drainage area. 144 sq mi.

Records available. August 1921 to September 1950 (fragmentary prior to Nov. 23, 1943).

Sage. Water-stage recorder. Datum of gage is 4,982.73 ft above mean sea level (unad- 

"justed) . Prior to Aug. 26, 1931, staff gage at site 25 ft downstream at 2.0 ft higher 

datum. Aug. 26, 1931, to Nov. 22, 1943, staff gage at site 75 ft downstream at present datum.

Extremes. Maximum gage height during year, 7.08 ft July 4; minimum, 3.49 ft Apr. 11, 12.

1921-51: Maximum gage height observed, 8.75 ft July 13, 1935; minimum observed, 

0.95 ft Oct. 3, 1931.

Remarks.--Flow from Payette Lake is regulated within natural range by tainter gates and 

removable stoplogs 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 United States Forest Service. 

Revisions (water years).--W 753: 1931. W 1013: Drainage area.

Gage height, in feet, water year October 1950 to September 1951

Day

1

Z

3

4

5

G

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

26

29

30

31

Oct.

4.65

4.63

.63

.62

.65

.67

.65

.61

.57

.53

.49

.45

.44

.42

.39

.35

.35

.39

.39

.38

.37

.37

.35

.33

.33

.39

.41

.51

.74

.25

.55

Nov.

5.58

5.53

5.41

5.31

5.21

5.18

5.05

4.99

4.87

4.75

4.62

4.50

4.40

4.31

4.20

4.11

-

-

-

-

.

-

-

-

-

.

-

4.00

4.02

4.05

-

Dec.

4.08

4.09

4.11

4.17

4.19

4.21

4.27

4.26

4.26

4.24

4.21

4.20

4.20

4.20

4.20

4.20

4.19

4.18

4.18

4.16

4.15

4.14

4.15

4.14

4.13

4.12

4.10

4.11

4.12

4.14

4.15

Jan.

.15

.16

.17

.16

.15

.13

.11

.09

.08

.07

.08

.06

.06

.08

.08

.07

.11

.10

.10

.08

.10

.09

.09

.09

.08

.07

.05

.04

.02

.98

.96

Feb.

.96

.94

.95

.02

.06

.06

.09

.10

.12

.15

.15

.16

.15

.14

.13

.12

.12

.12

.11

.10

.09

.08

.07

4.05

4.06

4.05

4.03

4.03

-

_

-

Mar.

4.01

4.00

3.98

4.03

4.08

4.10

4.11

4.10

4.11

4.09

4.07

4.06

4.04

4.03

4.04

4.06

4.04

4.03

4.00

3.99

3.98

3.97

3.96

3.94

3.94

3.93

3.93

3.93

3.92

3.94

3.93

Apr.

3.93

3.93

3.94

3.96

4.01

4.04

3.88

3.72

3.59

3.54

3.50

3.49

3.53

3.62

3.71

3.79

3.81

3.86

3.91

3.91

3.87

3.78

3.68

3.62

3.57

3.56

3.63

3.77

3.92

3.90

-

May

3 '.82

3.72

3.63

3.59

3.64

3.81

4.13

4.40

4.58

, 4.78

5.02

5.10

4.95

4.73

4.53

4.47

4.64

4.82

4.93

4.99

5.07

5.20

5.46

5.61

5.62

5.59

5.65

5.75

5.67

5.42

5.12

June

4.82

4.57

4.38

4.34

4.45

4.61

4.67

4.67

4,62

4.63

4.73

4.91

5.09

5.24

5.48

5.75

5.85

5.83

5.82

6.20

6.56

6.75

6.83

6.88

6.90

6.90

6.90

6.98

7.02

7.03

-

July

7.04

7.05

7.03

7.04

6.96

6.97

7.03

7.01

6.98

6.98

5.94

6.93

6.96

6.96

6.97

6.97

6.94

6.82

6.70

6.57

6.43

6.30

6.15

6.01

5.85

5.70

5.55

5.40

5.25

5.09

4.96

Aug.

.92

.89

.87

.86

.85

.85

.84

.83

.81

.79

.77

.74

.73

.71

.69

.60

.64

.64

.63

.60

.59

.58

.61

.62

.62

.61

.59

.60

.60

.59

.58

Sept.

4.57

.56

.54

.53

.53

.51

.51

.49

.48

.47

.46

.43

.42

.40

.37

.35

.30

.23

.19

.17

.09

.04

3.99

3.91

3.87

3.83

3.75

3.70

3.65

3.65

-
166 PAYETTE RIVER BASIN

North Fork Payette River at McCall, Idaho

Location.--Lat 44°54'30", long. 116°07'30", in sec. 8, T. 18 N., R. 3 E., at McCall r a 

quarter of a mile downstream from outlet of Payette Lake.

Drainage area. 144 sq mi.

Records available. September 1908 to June 1917, May 1919 to September 1951.

Gage.. --Water-stage recorder. Altitude of gage is 4,970 ft (by barometer). Prior to Oct. 

14, 1908, staff gage at site 1 mile downstream at different datum. Oct. 14, 1908, to 

Dec. 18, 1923, staff gages at sites near present gage at present datum.

Average discharge. 40 years (1908-16, 1919-51), 351 cfs.

Extremes.--Maximum discharge during year, 2,400 cfs May 28 (gage height, 5.97 ft); minimum, 8 cfs Sept. 6 (gage height, 1.38 ft).

1908-17, 1919-51: Maximum discharge, 4,260 cfs June 10, 1933, June 4, 1948; maximum gage height, 7.71 ft 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 cfs, 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. Ifater-stage recorder inspected by employee of United States Forest Service. 

Revisions. W 963: Drainage area.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.5 

1.7 

2.0 

2.3 

2.6 

3.0

13

23

48

90

154

275

3.5 

4.0 

4.5 

5.0 

6.0

486

770

1,100

1,490

2,430

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

36

36

36

36

36

64

154

152

152

149

147

118

51

84

126

94

108

162

222

*196

128

128

128

128

128

142

213

216 

222

235

460

4,287

138

8,500

Nov.

648

¥4T

625

614

602

586

575

564

548

527

517

501

491

472

462

448

438

424

416

214

87

95

103

108

115

121

126

130 

132

140

-

11,471

382

22,750

Dec.

147

147

152

170

170

176

193

187

187

184

*181

181

178

176

181

181

176

176

173

170

170

168

165

165

159

154

149

154 

159

159

168

5,256

170

10,430

Jan.

165

170

173

175

168

a!60

a!55

al50

a!45

a!45

a!45

a!40

a!40

a!45

a!45

a!45

*157

154

149

147

149

149

149

149

147

144

140

135 

130

126

124

4,610

149

9,140

Feb.

121

T26

132

137

147

144

157

159

165

170

173

178

T73

170

168

168

165

162

159

154

154

149

147

144

144

142

140

135

_

-

4,283

153

8,500

Mar.

130

128

*126

135

149

157

159

154

159

154

149

144

142

137

142

147

142

135

130

126

121

119

117

113

111

111

107

105

TOT

113

108

4,077

132

8,090

Apr.

158" 108

113

119

130

403

842

751

678

548

486

486

501

537

569

684

824

872

878

878

848

806

758

714

*684

684

714

800 

884

ST8

-

18,285

610

36,270

May

824

770

720

696

T5T

824

1,040

1,230

1,370

1,520

1,720

1,780

1,640

1,460

1,310

1,270

1,390

1,520

1,630

1,680

1,740

1,870

2,090

2,240

2,250

*2,220

2,280

2,360 

2,290

2,020

1,750

48,231

1,556

95,660

June

1,510

1,310

1,080

872

918

1,000

1,040

1,040

1,010

1,020

1,080

1,170

1,280

1,380

1,560

1,780

1.850

1,830

P71

*398

571

866

897

918

925

925

702

684

770

708

-

32,065

1,069

63,600

July

733

745

739

1.070

878

517

472

512

467

424

376

316

294

272

261

261

418

476

*476

481

443

434

462

467

467

462

452

443 

434

429

224

14,905

481

29,560

Aug.

94

53

67

47

40

44

46

45

43

41

39

38

37

34

32

32

32

*31

31

30

29

28

29

28

27

26

26

25 

24

?4

24

1,176

37.9

2,330

Sept.

24

23

22

21

20

18

20

19

17

17

16

16

16

82

21

79

162

142

73

82

134

143

85

201

*84

145

109

141 

91

83

-

2,106

70.2

4,180

Calendar year 1950: Max 2,880 Min 36 Mean 438 Ac -ft 317,300

Water year 1950-51: Max 2,360 Min 16 Mean 413 Ac-ft 299,000

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of gage-height relation curve and. gage heights 

for Payette Lake.
PAYETTE RIVER BASIN 

Fish hatchery diversion at McCall, Idaho

167

Location.--Lat 44 0 54'30", long. 116°07'00", in sec. 8, T. 18 N., R. 3 E., immediately below 

below outlet from fish hatchery tanks, just above point of return to North Fork Payette River, 1 mile west of McCall.

Records available. October 1942 to September 1951.

Gage.--Staff gage and ParshaU flume. Altitude of gage is 4,980 ft (from topographic map).

Extremes. 1942-51: Maximum daily discharge, 4.8 cfs several days during April, May and 

July 1943; no flow Sept. 22 to Nov. 7, 1943.

Remarks. Records fair. Flow regulated by fish hatchery, water for which is diverted from 

Payette Lake or North Fork Payette Biver and bypasses gaging station on that stream.

Cooperation. Gage readings furnished by Idaho State Fish and Game Commission.

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, in cubic feet per second)

.7

.9

1.1

1.4 

2.0 

2.5

3.7 

5.0

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

2

3

5

6

7

8 

9

10

11 

12

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

1.9

1.9

1.9

1.9

1.9

2.0 

2.1

2.1

2.1 

2.1

2.1 

2.1

2.1

2.2

2.2

2.2

*2.1

2.2

2.2

2.1

2.1

1^6.

1.6

1.6

1.6

1.9

1.9

1.9

61.4

1.98

122

No*.

T78

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.

1.

1.

1.

1.

1.

1.6

1.6

1.6

-

52.9

1.76

105

. Dec.

T7e

1.6

1.6

1.6

1.6

1.6

 1.6

T.T

1.7

1.7

1.6

1.6

1.6

1.6

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.6

50.5

1.63

10O

Jan.

T7S1.6

1.6

1.6

1.6

1.6

1.7

1.7

1.7

*1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.8

1.8

1.8

1.8

52.3

1.69

104

Feb.

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

1.8

1.8

1.8

1.8

1.8

1.8

1.8

_

_

-

50.4

1.80

100

Mar.

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

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

55.8

1.80

111

Apr.

re

1.8

1.8

1.8

1.8

1.8

1.9

1.9 

1.9

1.9

2.0 2'.0

2.0

2.0

2.0

2.0

2.0

2.0

*2.O

2.0

2.0

2.0

2.0

2.0

57.6

1.92

114

Calendar year 195O: Max 2.2 Mln 0.9 Mean 1.54

May

 272

2.2

2.2

2.1

2.1

4.4

4.4

is!

4.4

4.3

4.2

4.0

4.O

3.8

3.6

3.1

3.3

3.1

*3.5

3.6

3.6

3.4

3.0

3.0

108.3

3.49

215

June

2.9

2.9

2.9

2.9'

2.9

2.8 578

2.8

2.8 

3.0

3.1

3.3

3.3

3.2

3.2

*3.2

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

' 3.3

3.3

92.9

3.10

184

July

3.1

3.3

?7l 

3.1

3.1

3.1

3.1 

3.1

3.1

3.1 

3.1

3.2

3.2

3.1

3.1

*3.1

3.1

3.1

3.1

3.1

' 3.1

3.1

3.1

3.0

3.0

3.0

3.0

3.0

96.0

3.10

19O

Ac-l't 1,120

Aug.

3.0

5.1

371

2.6

2.6

2.6

2.6 

2.6

2.5

2.5 

2.6

2.8 

2.8

2.8

2.8

2.8

*2.8

2.9

2.8

2.8

2.8

 277 2.4

2.7

2.7

2.7

2.7

2.6

2.6

84.6

2.73

168

Sept.

2.7

2.7

2.6

2.6

2.6

2.4 

2.4

2.4

2.4 

2.4

2.4 

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2.2

*2.2

2.2

2.2

2.2

2.2

2.2

2.2

71.3

2.38

141

Water year 195O- 51: Max 4.5 Mln 1.6 Mean 2.28 Ac-ft l,65O

Discharge measurement made on this day.
168 PAYETTE RIVER BASIN

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

Location. Lat 44°55' , long. 115°59', in NE£ sec. 8, T. 18 N., R. 4 E., on left bank 200

 ft upstream from bridge at abandoned powerplant, a quarter of a mile upstream from 

Jumbo Creek, 3| miles upstream from Lake Fork Reservoir dam, and 5^ miles east of 

McCall.

Drainage area. 48.9 sq mi.

Records available.--October 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 5,140 ft (from topographic map). Prior

 HTo Nov. 10, 1945, staff gage at site 200 ft downstream at different datum.

Average discharge. 6 years, 151 cfs.

Extremes. Maximum discharge during year, 1,080 cfs May 28 (gage height, 7.51 ft); mini-

 mum, 12 cfs Sept. 20-25; minimum gage height, 2.25 ft Sept. 25.

1945-51: Maximum discharge, 2,600 cfs June 3, 1948 (gage height, 9.19 ft), from 

rating curve extended above 1,000 cfs by logarithmic plotting; minimum, 8.9 cfs Sept. 

28, 1949 (gage height, 1.89 ft).

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 1950-51, except periods of Ice effect (gage 

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

Oct. 1 to Aug. 12 Aug. 13 to Sept. 30

2.5 

2.7 

3.0 

3.5

17

23

34

60

4.0 

4.5 

5.0 

5.5

94

135

190

270

6.0 

6.5 

7.2

390

560

895

2.2 

2.4 

2.6 

2.9 

3.2

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

20

20

19

21

34

45

31

34

35

28

25

24

23

22

23

23

31

99

61

*46

40

38

34

32

49

90

88

98

439

290

185

2,O47

66.0

1.35

1.56

4,060

Nov.

147

134

126

130

14O

135

134

130

101

99

101

93

89

87

82

80

80

79

74

79

85

78

75

I!

75

76

78

75

73

76

-

2,884

96.1

1.97

2.19

5,720

Dec.

72

b68

b65

b68

*b55

b65

b65

b64

64

69

68

67

64

64

65

64

63

61

61

60

59

58

59

60

58

b48

b44

b52

58

58

55

1,901

61.3

1.25

1.45

3,770

Jan.

b53

52

52

55

52

b50

b46

b45

b47

b48

b48

48

46

47

*46

44

41

b38

b41

b40

b40

b39

b39

41

41

40

38

b37

b36

b35

b35

1,360

43.9

0.898

1.03

2,700

Feb.

37

39

39

39

38

38

b40

b50

b60

b65

b60

b55

b52

b52

b50

b48

b48

bSO

b48

b47

b45

b44

b45

b45

a45

b45

b44

b44

_

_

-

1,312

46.9

0.959

1.00

2,600

Mar.

a45

*b46

b46

a45

a44

a44

a43

a42

842

a40

838

838

839

840

840

b38

b36

b35

b35

b36

b36

b35

b35

b343"6

37

37

b36

37

37

37

1,209

39.0

0.798

0.92

2,400

Apr.

40

Tj

59

74

99

126

151

166

176

177

176

206

257

317

314

322

362

390

376

329

270

245

230

227

*219

242

290

379

319

252

-

6,837

22S

4.66

5.20

13,560

May

216

197

-235 193

288

430

576

560

580

671

675

533

414

344

341

472

622

643

639

634

675

782

890

819

767

*777

829

862

639

515

408

17,226

556

11.4

13.10

34,170

June

339

355" 305

310

433

357

324

310

322

376

472

556

568

661

819

808

708

648

600

592

549

486

*452

446

405

382

376

393

. 370

362

-

14,037

468

9.57

10.68

27,840

July

368

357

344

423

319

280

263

244

222

206

189

176

173

172

160

145

136

126

118

*107

93

S5

79

74

71

66

61

58

55

52

48

5,270

170

3.48

4.01

10,450

Aug.

46

44

41

40

39

38

35

34

33

31

30

29

27

26

25

24

23

22

*22

11

21

22

46

41

28

24

23

28

29

28

25

945

30.5

0.624

0.72

1,870

Sept.

23

^2

21

20

20

19

18

17

17

16

16

16

16

15

15

14

14

14

13

12

12

13

12

12

*15

19

15

14

14

17

481

16.0

0.327

0.37

954

Calendar year 1950: Max 1,160 Min 17 Mean 161 Cfsm 3.29 In. 44.75 Ao-ft 116,700

Water year 1950-51: Max 890 Min 12 Mean 152 Cfsm 3.11 In. 42.23Ac-ft 110,100

Peak discharge (base. 850 cfs).--May 22 (11 p.m.) 1,O60 cfs (7.48 ft); May 28 (2 a.m.) 1,080 cfs 

(7.51 ft); June 15 (10:30 p.m.) 1,070 cfs (7.49 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for station 

below Lake Irrigation District Canal.

b Stage-discharge relation affected by ice.
PAYETTE RIVER BASIN 169

Lake Fork Reservoir near MoCall, Idaho

Location Lat 44°54' , long. 116°03', in NW£NW£ sec. 13, T. 18 N., R. 3 E., on Lake 

Fork Payette River, 3 miles east of McCall.

Drainage area. 64 sq mi, approximately.

Records available. April 1926 to September 1951.

Gage.--Staff gage and graduations on concrete gate-control structure of dam; gage read 

once daily. Datum of gage is at mean sea level (levels by Lake' Irrigation District).

Extremes.--Maximum contents observed during year, 19,360 acre-ft July 5 (elevation, 

5,118.52 ); practically no storage at times during fall and winter.

1926-51: Maximum contents observed, 19,740 acre-ft June 19, 1941 (elevation, 

5,118.75 ft); no storage above elevation 5,101.0 ft for long periods during fall and 

winter of most years.

Remarks. Reservoir is formed by earth and rock-fill dam completed in 1926. Capacity, 

16,940 acre-ft between elevations 5,101.0 ft (lower limit of capacity table, 4.0 ft 

above gate sill of outlet) and 5,117.0 ft (top of flashboards, 5.0 ft 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 

ft. There is some usable storage below elevation 5,101.0 ft, but natural flow passing through reservoir when outlet gates are operating prevents withdrawal of storage 

to elevation of sill of gates. Storage figures from gage heights as observed.

Cooperation. Elevation record and capacity table furnished by Lake Irrigation District.

Contents, In acre-feet, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

-

-

2,497

-

2,490

_

-

2,203

-

.

-

-

-

1,690

_

1,486

-

-

-

1,545

-

-

-

-

_

-

-

-

-

-

Nov. Dec. Jan. Feb. Mar. Apr.

3,032

-

May

15,000

June

13,850

_

.

-

_

_

_

_

-

_

-

-

_

-

_

-

_

-

-

18, 240

-

-

_

-

_

18,540

18, 680

18,810

18.960

- '

July

19,120 

19,200

19,220

19,310

19.560

19,250

19,140

19,040

18,970

18,880

18, 810

18,680

18, 490

18, 380

18,240

18,060

17,890

17,730

17,410

17,210

16,970

16,550

16,270

15,940

15, 620

15,310

15,050

14,740

14,370

14,000

15.620

Aug.

15.310 

12,970

12,590

12,240

11,880

11,520

11, 160

10, 820

10, 530

10,170

9,810

9,522

9,511

8,973

8,770

8,500

8,176

7,903

7,563

7,260

6,958

6,652

6,555

6,555

6,320

6,093

5,896

5,687

5,510

5,288

5.182

Sept.

4.991 

4,811

.

-

-

4,173

_

_

_

-

_

-

2,983

-

2,693

_

_

.

-

-

1,873

-

-

_

1,420

1,327

_

-

-

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

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

Elevation 

(feet)

t5, 103.78

Contents 

(acre-feet)

1,380

Change In contents 

during month 

(acre-feet)

-3,802

t Interpolated.
170

PAYETTE RIVER BASIN

Lake Irrigation District Canal near McCall, Idaho

Location. Lat 44°54' , long. 116°03' , in SW£ sec. 13, T. 18 N., R. 3 E., on right bank 

600 ft downstream from head of canal, half a mile south of Lake Pork Reservoir, and 

3 miles southeast of McCall.

Records available. May 1926 to September 1951.

Gage. Staff gage read once or twice daily. Altitude of gage is 5,090 ft (from topographic map). Prior to May 1947, staff gage at same site at different datum.

Extremes. 1926-51: Maximum daily discharge, 201 cfs June 30, 1948; no flow or small 

amount of leakage through headgate during nonirrigation seasons.

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

poor. No diversions between head and station. Canal diverts from right bank of Lake 

Pork Payette River in SW£ sec. 13, T. 18 N., R. 3 E., for irrigation of 6,800 acres 

of land near McCall and Norwood, in the Lake Irrigation District project.

Cooperation. Gage readings furnished by Lake Irrigation District.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.5

.7

.9

1.2

1.5

2.0 

2.5 

3.0 

3.5 

3.9

48

75

109

149

186

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ao-ft

Oct.

a9 

a9

a9

9

a7

c

a5

a5

5

a5

a4

a4

a4

a3

3

a3 *»g

a2

a2

a2

1

o

0

o

0

o

0

o

o

0

o

98

3.2

194

Nov.

0

0

0

Dec.

(**)

0

0

0

Jan.

(*»)

O

o

o

Feb.

O

O

0

Mar.

(»)

0

O

0

Apr.

(**)

0

0

0

May '

0 

o

0

0

0

0

O

o

0

o

o

al

al

al

al

al

a2

a2

a3

a3

a3

a3

a3

a3

a3

a3*3

a!5

a3O

a35

a4O

156

5.0

309

June

a40 

a40

a50

aeo

a7o

a75

a80

a80

a80

a80

a85

aso

aeo

a6o

aeo

a50

aso

allO

al75

a!75

*178

a!78

al78

al78

al79

a!79

179

Mi

181

181

-

3,352

112

6,650

July

179 

181

179

176

172

170

169

171

170

173

172

173

173

172

169

168

164

164

163

*163

161

»151

150

152

152

147

148

149

148

145

145

5,067

163

10,O5O

Aug.

144 

144

139

139

140

140

139

138

121

1O7

109

106

101

101

103

101

96

*90

86

83

83

77

72

70

69

69

69

a68

60

51

48

3,063

98.8

6,O80

Sept.

0

48

48

a48

45

a42

a42

a42

42

a42

a42

34

a30

30

25

25

25

25

25

25

25

26

26

*26

18

a!3

a!3

a!3

a!3

-

953

31.8

1,890

Calendar year 1950: Max 182 Min 0 Mean 37.5 Ac-ft 27,130

Water year 1950-51: Max 181 Min 0 Mean 34.8 Ao-ft 25,170

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.

a Ho gage-height record; discharge estimated 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.
PAYETTE RIVER BASIN 171

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

Location. Lat 44°54' , long. 116°03 ! , in SW£ sec. 13, T. 18 N., R. 3 E., on right bank

 300 ft downstream from diversion dam for Lake Irrigation District Canal, half a mile 

downstream from Lake Pork Reservoir, and 3 miles southeast of McCall.

Drainage area. 64 sq mi, approximately.

Records available. October 1940 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 5,080 ft (from topographic map).

Average discharge. 11 years, 131 cfs.

Extremes. Maximum discharge during year, 942 cfs May 28 (gage height, 5.72 ft); minimum,

 2.8 cfs Oct. 6 (gage height, 2.08 ft).

1940-51: Maximum discharge, 2,120 cfs June 3, 1948 (gage height, 7.09 ft), from 

rating curve extended above 1,200 cfs by logarithmic plotting; minimum, 0.4 cfs Mar. 

27, 28, 1944; minimum gage height, 1.76 ft Mar. 28, 1944.

Remarks. Records good except those for periods of ice effect, which are fair. Plow

 regulated by Lake Fork Reservoir (see p. 169 ). Lake Irrigation District Canal diverts 

above station for irrigation of about 6,800 acres.

Revisions (water years). W 963: 1941.

Rating table, water year 1950-51, except periods of ice effect 

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

(Shifting-control method used Dec. 11 to Mar. 15, 

May 18-31, June 15-18)

2.7 

2.9 

3.2 

3.5

33

54

94

148

4.0 

4.5 

5.0 

5.5

273

436

635

900

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

M

44

44

44

44

62

104

92

66

66

66

66

66

65

65

65 *65

66

66

66

70

78

78

76

75

78

144

194

209

229

229

2,726

87.9

5,410

Nov.

227

242

245

229

214

204

194

187

170

157

146

138

130

123

117

112

108

105

102

99

97

96

92

91

90

88

86

86

85

85

-

4,145

138

8,220

Dec.

86

84

82

84

*80

80

84

82

80

78

76

76

75

74

75

75

74

72

72

71

69

67

67

67

67

65

62

64

64

65

65

2,282

73.6

4,530

Jan.

62

65

62

61

61

b59

b57

55

55

54

53

52

52

52

52

 52

b52

b51

51

b50

50

48

48

48

47

47

b46

b45

b44

b43

b42

1,613

52.0

3,200

Feb.

b42

b42

b42

b43

b43

43

44

45

52

56

60

62

62

62

61

62

b61

61

b60

59

59

b58

58

56

55

b54

b52

b52

-

_

-

1,506

53.8

2,990

Mar.

b53

b54

*b54

b52

b52

b51

b51

52

b51

b49

b48

46

45

b45

45

b44

b43

b42

b42

b43

44

b44

b43

b42

b43

43

b44

b45

45

b45

b45

1,445

46.6

2,870

Apr.

b46

47

51

56

65

78

96

115

134

150

166

182

204

235

262

276

297

315

331

341

344

341

334

328

*325

322

216

94

99

100

5,950

198

11,800

May

102

155

104

105

107

110

115

115

121

130

206

387

450

447

415

418

506

630

720

710

720

768

872

894

867

840

*872

8l2

665

546

14,756

476

29,270

June

426

341

297

211

119

119

159 140

150

175

184

206

318

398

526

630

645

554

401

347

*370

364

279

265

192

202

163

159

138

124

8,602

287

17,060

July

140

163

170

216

229

184

152

123

97

75

71

72

72

69

69

64

60

69

71

*78

79

84

80

82

79

75

72

76

78

75

72

3,096

99.9

6,140

Aug.

25

74

74

72

70

67

67

69

67

69

67

66

64

62

59

58

59

*60

62

62

61

62

65

65

59

53

53

COi

52

53

1,950

62.9

3,870

Sept.

54

54

54

55

54

54

55

54

54

53

52

52

52

51

51

52

50

48

50

48

48

47

46

45

*45

48

52

51

50

48

1,527

50.9

3,030

Calendar year 1950: Max 1,050 Mln 12 Mean 148 Ac-ft 107,200

Water year 1950-51: Max 900 Mln 42 Mean 136 Ac-ft 98,390

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
172 PAYETTE RIVER BASIN

Cascade Reservoir at Cascade, Idaho

Location. Lat 44"31 "30", long. 116"03"00", In NE^NE^ sec. 26, T. 14 N., R. 3 E. , just 

upstream from left abutment of dam on North Fork Payette River, half a mile downstream 

from Willow Creek and three-quarters of a mile northwest of Cascade

Drainage area. 620 sq mi.

Rec °rds available. January to December 1948 (fragmentary), January 1949 to September

Gage.--Staff gage read once daily. Datum of gage is at mean sea level (preliminary, unadjusted levels of U. S. Coast and Geodetic Survey).

Extremes.--Maximum contents observed during year, 188,100 acre-ft June 20 (elevation 

4,801.78 ft); minimum observed, 50,000 acre-ft Mar. 22 (elevation, 4,787.50 ft).

1948-51: Maximum contents observed, 314,400 acre-ft 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 

w °v. 7, 1947. Capacity, 703,200 acre-ft between elevations 4,766 ft (4.0 ft above 

sill of outlet tunnel) and 4,828 ft (top of spillway gates). Figures herein show 

contents above elevation 4,766 ft. The Bureau of Reclamation plans to limit withdrawal to elevation 4,787.5 ft, retaining 50,000 acre-ft 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 powerplant near Emmett, pending construction of Scriver 

Creek power development and Garden Valley Reservoir.

Cooperation. Gage readings and capacity table furnished by Bureau of Reclamation.

Contents, In acre-feet, at about 8 a.m., water year October 1950 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.

80,970

80,970

81,130

81,130

81,130

82,650

83,250

83,590

84,370

84,810

85,070

85,340

85,600

85,870

85,870

85,870

85,420

85,870

86,310

86,580

86,580

86,580

86,490

86,490

86,220

86,670

86,670

88,090

90,070

92,790

92,790

Nov.

90,790

90,790

89,710

88,630

87,380

85,780

84,720

83,760

82,140

80,470

78,820

76,890

74,560

74,560

74,560

74,870

75,640

78,010

80,060

81,300

82,990

83,850

84,550

84,980

84,900

84,900

84,900

84,720

84,720

84,460

-

Dec.

85,250

85,600

85,780

85,960

85,490

86,850

87,560

88,000

88,180

88,720

88,990

89,080

89,260

89,350

89,620

90,070

90,430

90,610

90,700

90,880

91,060

91,150

91,150

91,150

91,150

91,150

90,970

90,700

90,430

90,610

90,700

Jan.

90,520

90,340

90,520

90,610

90,790

91,420

91,420

91,700

92,060

92,610

93,060

93,340

93,610

93,980

94,340

94,800

95,080

95,540

95,720

96,000

96,090

96,460

96,740

97,300

97,390

97,580

97,860

98,040

98 , 130

97,860

97,860

Feb.

97,480

97,390

97,390

97,670

98,320

98,510

99,260

99,640

100,500

101,600

102,800

104,400

105,600

106,600

107,700

108,400

109,100

109,600

110,200

110,700

111,400

111,900

112,500

112,600

113,300

113,500

113,800

114,000

_

-

Mar.

114,200

114,500

114,500

110,900

107,900

104,000

100,800

96,370

92,970

88,900

84,720

80,970

77,210

73,340

69,690

68,000

64,840

61,230

57,880

54,560

51,360

50,000

50,120

50,120

50,310

50,370

50,620

50,810

50,930

51,120

50,930

Apr.

50,620

50,500

50,620

51,120

51,610

52,610

54,120

57,110

59,510

61,950

64,360

66,480

68,980

71,560

74,720

77,290

79,560

80,970

82,650

84,630

86,040

86,760

87,380

87,740

87,910

88,090

88,090

87,820

89,800

90,970

-

May

91,150

90,790

90,520

89,090

89,350

88,990

88,810

90,070

91,520

92,970

95,540

98,600

102,100

105,600

108,500

110,500

112,100

114,100

117,000

119,300

123,800

126,900

129,800

136,100

141,700

147,500

153,000

158,100

163,700

169,200

173,300

June

175,800

177,500

177,900

177,900

177,900

177,900

177,900

177,900

177,200

177,200

176,000

175,400

176,100

176,700

177,600

178,100

181,800

184,000

186,400

188,100

186,700

186,700

184,000

183,200

181,900

180,600

179,200

177,900

175,300

173,000

-

July

170,900

168,500

166,200

165,000

162,300

161,000

158 , 600

155,900

153,100

150,000

146,400

143,000

139,700

137,100

132,300

129,100

125,400

121,700

119,300

118,100

117,900

114,400

114,300

114,200

114,000

114,800

115,300

116,000

116,500

116,800

117,400

Aug.

117,500

116,600

115,400

114,400

113,400

112,400

111,200

110,000

108,900

107,800

106,400

105,500

104,000

103,300

102,100

101,100

100,000

98 , 980

98,040

97,390

96,460

95,720

95,450

94,620

93,700

93,240

92,520

92,430

92,430

92,240

92,240

Sept.

92,060

92,060

91,970

91,790

91,790

91,610

91,420

91,150

90,970

90,790

90,610

90,160

90,070

89,890

89,350

88,990

88,630

86,220

84,020

82,140

80,640

78,900

76,890

75,020

73,040

71,850

70,330

63,840

67,440

65,930

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Oct. 31............ ........

Dee . 31 ....................

Calendar year 1950. ......

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

Mar. 31....................

May 31....................

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

Water year 1950-51. ......

Elevation 

(feet)t

4,791.96

4,793.30

4,793.07

_

4,795.51

4,787.65

4,793.24

4,789.96

-

Contents 

(acre-feet)

80,970

92,790

90,700

_

114,000

50,930

90,970

173,300

173,000

117,400

92,240

65,930

-

Change In contents 

during month 

(acre-feet)

_

+11,820

+6,240

+87,810

+7,160

+16,140

-63,070

+40,040

+82,330

-300

-55,600

-25,160

-26,310

-15,040

t Elevation at about 8 a.m.
PAYETTE RIVER BASIN 173

North Fork Payette River at Cascade, Idaho

Location. Lat 44°31', long. 116°02', in NE£ sec. 36, T. 14 N. , R. 3 E., on right bank at 

cascade, 285 ft downstream fiom Halleck and Howard mill dam, half a mile upstream from 

Beaver Creek, and 1| miles downstream from Cascade Dam.

Drainage area. 626 sq mi.

Records available. May 1941 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 4,730 ft (from topographic map of Bureau 

of Reclamation). Prior to Jan. 28, 1947, staff gages at present or nearby sites at 

present datum.

Average discharge. 10 years, 1,023 cfs.

Extremes. Maximum discharge during year, 2,840 cfs July 22 (gage height, 3.13 ft); minimum, 32 cfs July 22 (gage height, 0.31 ft).

1941-51: Maximum discharge recorded, 7,320 cfs May 10, 1947 (gage height, 6.29 ft); 

minimum, 2 cfs or less In January 1948 when stage was below intake.

Remarks. Records good. Flow regulated by Cascade Reservoir (see p. 172), Payette Lake 

I see p. 165), Lake Fork Reservoir (see p. 169), and occasionally by Halleck and Howard 

mill dam. Diversions above station for irrigation of about 37,000 acres.

Rating table, water year 195O-51 (gage height, in feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 31 to Nov. 12, 

Mar. 3-21, Apr. 9 to May 8)

0.8 

1.0 

1.3 

1.6

154

237

409

653

2.0 

2.5 

2.9

1,110

1,910

2,640

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

158 

155

162

162

170

166

162

162

158

215

*252

252 

252

293

344

390

467

446 

*438

438

438

438

383

440

443

462

617

692

871

1,490

1,910

13,429

433

26,640

Nov.

1,910 

1,910

1,910

1,910

1,910

1,910

1,910

1,910

1,890

1,890

2,100

ffi718

722

721

 563

177 

?57

211

228

230

460

506

539

498

539

608

522

514

-

32,793

1,093

65,040

Dec.

514 

514

522

522

514

522

522

514

514

514

*514

514 

522

522

531

531

522

522 

514

506

506

514

514

514

514

514

514

678

556

506

506

16,156

521

32,040

Jan.

506 

467

409

416

310

392

233

224

228

257

327

327 

333

333

333

338

338

*333 

344

344

344

344

344

344

350

402

357

357

364

364

a370

10,732

346

21,290

Feb.

a446 

453

Mi

350

350

350

357

357

364

357

357

364 

364

357

357

416

409

370 

370

370

370

376

376

383

390

396

396

402

_

-

-

10,551

377

20,930

Mar.

402 

409

1,350

2,260

2,240

2,240

2,160

2,160

2,120

2,140

2,140

2,060 

2,080

2,100

2,040

2,020

2,000

1,950 

1,860

1,750

1,290

678

514

522

531

547

572

617

692

805

895

45,144

1,456

89,540

Apr.

'91? 907 

992

1,190

1,370

1,400

1,400

1,640

1,640

1,780

1,780

1,840 

1,840

1,86O

1,890

1,930

1.93O

2,020 

2,100

2,120

2,120

2,120

*2,120

2,140

2,120

2,120

2.160

2,160

2,160

2,140

-

53 , 908

1,797

106,900

May

2,160 

2,160

2,140

2,120

2,120

2,100

2,O6O

2,160

2,140

2,140

2,160

2,160 

2.2OO

2,180

2,260

2,280

2,300

2,320 

2,320

2,370

2,390

2,350

2,280

«1.950

1,970

2,370

2,350

2,280

2,200

2.430

2,430

68,830

2,220

136,500

June

2,440 

2,44O

2,460

2,460

2,480

2,460

2.350

2,480

2,460

2,460

2,460

2,480 

2,460

*2,460

2,480

2,460

2,480

2,500 

2,500

2,510

2,500

2,510

2.530

2,510

2,510

2,510

2,510

2,510

2,500

2,500

-

74,370

2,479

147,500

July

2,500 

2,480

2,480

2,48O

2,460

2,460

2,460

2,460

2,44O

2,440

*2,430

2,43O 

2,430

2,410

2,410

2,370

2,350

1,950 

1,180

915

1,390

1,300

644

547

370

"2"67 242

272

267

267

350

51,451

1,660

102,100

Aug.

555 

731

805

783

722

712

712

712

*712

702

702

712 

722

682

644

644

626

599 

539

506

490

 416

506

644

506

3 SO

350

304

267

267

247

17,909

578

35,520

Sept.

219 

219

215

215

215

215

215

215

215

219

219

215 

215

252

338

344

990

1.360 

1,300

1,310

1,250

1,250

1,250

1,240

1,210

1,110

*1,080

1,040

1,020

1,020

-

20,175

672

40,020

Calendar year 1950 : Max 2,840 Mln 145 Mean 1,083 Ac-ft 783,900

Water year 1950-51 : Max 2,530 Min 158 Mean 1,138 Ac-ft 824,000

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for station 

near Banks.
174 PAYETTE RIVER BASIN

North Fork Payette River near Banks, Idaho

Location. Lat 44°07', long. 116°06', in SE£ sec. 16, T. 9 N., R. 3 E., on right bank 

40 ft downstream from highway bridge, 2| miles north of Banks, and 3 miles upstream 

from confluence with South Fork.

Drainage area. 933 sq mi.

Records available.--April 1947 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 3,081.13 ft above mean sea level, preliminary unadjusted elevation.

Extremes. Maximum discharge during year, 3,810 cfs Apr. 29 (gage height, 9.91 ft); mini- 

 mum, 238 cfs Oct. 1, 2 (gage height, 4.21 ft).

1947-51: Maximum discharge, 8,830 cfs May 11, 1947, estimated on basis of records

for station near Smiths Perry; minimum recorded, 36 cfs Dec. 31, 1947 (gage height,

3.01 ft).

Remarks.--Records excellent except those below about 500 cfs. which are good. Plow regulaTed by Payette Lake (see p.165 ), Lake Fork Reservoir (see p. 169), Cascade Reservoir (see p. 172) and occasionally by mill dam at Cascade. Many diversions from tributaries above station for irrigation.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

4.2 

4.4 

4.6 

5.0 

5,5

236

280

332

457

649

6.0 

7.0 

6.0 

9.0 

10.0

876

1,400

2,060

2,900

3,910

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

244

246

255

292

282

266

264

255

302

335

329

324

376

*417

493

592

560

541

530

523

519

504

526

580

612

852

1,060

1,160

1.980

15,703

507

31,150

Nov.

2,070

2,120

2,060

2,030

2,020

2,020

2,010

2,050

1,990

1,960

1,990

2.200

*2,110

1,080

847

847

866

530

391

464

430

433

450

645

657

687

653

726

674

678

-

37,688

1,256

74,750

Dec.

700

657

666

726

709

687

758

763

731

717

709

709

695

683

722

740

704

691

687

678

670

657

674

674

657

645

'662 637

*790

69T

670

21,559

695

42,760

Jan.

645

653

553

588

576

407

457

358

382

391

447

479

475

479

486

475

443

493

457

464

461

482

450

489

500

512

557

457

397

413

420

14,826

478

29,410

Feb.

530

678

549

 515 504

523

596

637

674

717

800

*886

828

786

749

726

735

674

604

624

608

588

584

584

588

553

564

564

-

-

17,965

642

35,630

Mar.

549

560

530

2,140

2.450

 2,410

2,380

2,560

2,320

2,520

2,520

2,290

2,280

2,280

2,310

2,320

2,290

2,240

2,200

2,150

2,000

1,550

862

855

842

871

920

955

1,020

1,140

1,180

52,652

1,698

104,400

Apr.

1 . 250

1,320

1,460

1,720

2,140

2,620

2,810

2,950

2,980

5,150

3,050

3,110

3,180

3,250

5,200

5,150

5,150

5,150

5,160

5,120

3,040

2,960

*2,940

2,940

2,940

2,950

2,940

3,570

5.650

5,340

-

84,950

2,851

168,500

May

3,100

3,000

2,940

2,940

2,940

5,010

5,150

5,510

3,290

5,290

5,510

5,350

5,590

5,250

5,180

5,200

5,280

3,310

5,290

5,270

5,270

5,310

3,350

*3,080

2.950

3,300

5,370

5.450

5,240

3,280

5,270

99,650

5,215

197,700

June

3,190

5,150

5,090

5,070

5,250

5.290

3,110

5,050

5,050

5,010

5,050

3,100

5,140

3,100

5,100

3,100

3,060

3,020

5,000

2,950

2,950

2,890

*2,860

2,850

2,850

2,790

2,770

2,760

2,750

2.710

-

89,940

2,998

178,400

July

2.690

2,680

2,660

2,670

2,680

2,610

2,580

2,570

2,550

2,520

2,520

2,500

*2,480

2,450

2,440

2,420

2,400

2,560

1,790

1,260

905

2,000

828

751

596

425

349

36T

358

552

552

56,085

1,809

111,200

Aug.

471

674

800

"790" 819

753

744

755

755

731

726

726

726

726

678

666

*662

620

596

545

530

504

457

641

678

486

426

415

564

558

552

19,092

616

57,870

Sept.

516

295

290

290

288

278

278

278

275

275

275

278

278

275

529

591

591

1,260

1,250

1.510

1,260

1,240

1,250

1,240

1,270

1,210

*1,120

1,120

1,080

1,070

-

20,760

692

41,180

Calendar year 1950; Max 3,180 Mln 220 Mean 1,393 Ac-ft 1,009,000

Water year 1950-51: Max 3,650 Mln 242 Mean 1,454 Ac-ft 1,053,000

* Discharge measurement made on this day.
PAYETTE RIVER BASIN 

Payette River near Horseshoe Bend, Idaho

175

Location Lat 43°56'00", long. HG-ll'SO", in SW£SW£ sec. 14, T. 7 N., R. 2 E., on right 

bank 100 ft east of tracks of Idaho Northern branch of Oregon Short Line Railroad and 

If miles north of Horseshoe Bend.

Drainage area. 2,230 sq mi.

Records available. February 1906 to September 1916, July 1919 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,623.5 ft above mean sea level (levels 

Ey Corps of Engineers). Feb. 13, 1906, to Nov. 22, 1912, staff gage at site 2 miles 

upstream at different datum.

Average discharge. 40 years (1907-15, 1919-51), 3,062 cfs.

Extremes. Maximum discharge during year, 13,400 cfs May 28 (gage height, 7.57 ft); minimum, 643 cfs Jan. 30 (gage height, 0.89 ft).

1906-16, 1919-51: Maximum discharge, 22,100 cfs June 9, 1921 (gage height, 9.57 ft); 

minimum, 350 cfs Dec. 17, 1935 (gage height, 0.26 ft), from rating curve extended below 

600 cfs.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are good. Flow regulated by Deadwood Reservoir (see p. 160 ), Payette Lake 

(see p.165 ), Lake Fork Reservoir (see p.169 ) and Cascade Reservoir (see p. 172). 

Diversions from tributaries above station for irrigation of about 50,000 acres.

Revisions. W 533: Drainage area.

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Ac-ft

Oct.

2,740 

2,700 

2,570

2,570

2,590

2,570

2,410

2,360

2,410

2,500

2,520

2,560

2,550

2,280

1,960

1,950

1,650

1,450

1,560

1,270

1,200

1,180

*1,160

1.110 

1,170

1,580

1,510 

1,840

2,200 

2,520

5.150

62,510

2,016

124,000

MOV.

3,190 

ffl

3,100

3,040

3,000

2,970

5,080

2,980

2,780

2,870

5,070

5,04O

2,130

1,66O

1,650

1,700

1,550

1,460

1,540

1,570

1,550

1.260

1,450 

1,460

1,510

1,47O 

1,550

*1,510 

1,520

65,470

2,182

129,900

Dec.

1,590 

1,470 

1,470

1,660

1,650

1,490

1,720

1,750

1,650

1,600

1,590

1,600

1,590

1,550

1,600

1,640

1,570

1,550

1,490

1,490

1,470

1,410

1,450

1,460 

1,420

1,570

1.520 

1,590

*1.770 

1,770

1,700

48,190

1,555

95,580

Jan.

1,540 

1,640 

1,820

1,910

1,85O

bl,6OO

bl,500

bl,650

bl,850

bl,800

1,410

1,530

1,290

1,310

1,540

1,290

1,210

1,230

1,210

1,160

1,220

1,260

1,170

1,220 

1,290

1,270

1,500 

1,110

854 

720

926

42,280

1,564

83,860

Feb.

1.O5O 

1,570 

1,420

1,420

1,610

1,550

2,050

2,380

2,560

2,570

2,550

*2.780

2,596

2,520

2,200

2,070

1,940

1,940

1,690

1,710

1,700

1,600

1,580

1,570 

1,580

1,450

1,450 

1,480

-

-

51,700

1,846

102,500

Mar.

1*55O

2,670

5,220

*3,190

5,200

5,140

5,140

5,O60

5,010

3,070

3,150

5,140

5,240

5 500

5 550

5J160

3,180

3,190

5,220

2,690

2,170

2,070 

2,220

2,590

2,660 

2,690

2,770 

2,910

2,840

86,270

2,783

171,100

Apr.

2.980 

3,510 

5,990

4,89O

5,86O

7,040

7,6OO

7,880

7,600

7,840

7,560

7,560

7,790

8,500

8,670

8,520

*8,470

8,80O

9,550

9,250

8,440

7,790

7,570

7,740

7,550

7,450

7,640 

9,200

10.700 

9,320

-

226,640

7,555

449,500

May

8,52O 

7,740 

7,34O

6,92O

6.740

7,560

8,870

9,870

9,840

9,920

10,500

10,500

9,510

8,650

7,980

8,100

8,670

*9,550

9,710

9,740

9,690

10,100

11,000

11,100 

10,800

11,900

12,600 

13.200

11 ! 500

10,50O

299,920

9,675

594,900

June

9,400 

8,840 

8,400

8,170

8,600

8,540

8,080

7,520

7,16O

7.020

7,04O

7,57O

8,270

*8,820

9,580

10,700

10.800

10,400

9,840

9,220

8,620

8,800

8,170

,860 

,670

,220

,180 

,200

,180 

,110

-

250,980

8,566

497,800

July

7.560 

7,180 

6,76O

6,740

6,510

6,120

5,99O

5,710

5,580

5,570

*5,530

5,110

4,990

4,970

5,150

4,950

a4,550

34,600

a4,700

34,950

4,430

5,990

4,540

4,140 

5,990

5,770

5,620 

3,620

3,750 

3,650

3,500

155,420

5,014

308,500

Aug.

3.-260 

3,350 

3,420

3,550

5.720

5,590

5,500

5,200

5,250

5.20O

5,2OO

5,200

5,280

5,280

*5,250

5,200

5,160

5,100

5,060

5,010

2,970

2,97O

2,980

5,060 

2,920

2,920

2,800 

2,770

2,490 

2,450

j^.410

96,100

5,100

190,600

Sept.

2.340 

2,500 

2,280

2,250

2,250

2,500

2,26O

2,240

2,290

2,26O

2,240

2,210

2,210

2,160

2,170

2,120

1,950

2,100

2,020

2,050

1,990

1,960

1,980

1,960 

1,990

2,150

*1,940 

1,890

1,820 

1.780

-

63,400

2,113

125,800

Calendar year 1950: Max 12,000 Min 790 Mean 3,675 Ac-ft 2,661,000

Water year 1950-51 : Max 13,200 Min 720 Mean 3,970 Ac-ft 2,874,000

* Discharge measurement made on this day.

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

North Fork and South Fork Payette River near Banks, 

b Stage-discharge relation affected by ice.
176 PAYETTE RIVER BASIN 

Payette River near Emmett, Idaho

Location. Lat 43°S6 I , long. 116°27', in sec. 22, T. 7 N., R. 1 W., on right bank threeeighths of a mile downstream from Black Canyon Dam and 5 miles northeast of Emmett.

Drainage area. 2,680 sq mi, approximately.

Records available . June 1925 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,400 ft (from topographic map).

Average discharge. 26 years, 2,925 cfs.

Extremes. Maximum discharge during year, 12,700 cfs May 27 (gage height, 9.40 ft); minimum, 159 cfs Jan, 29 (gage height, 1.44 ft); minimum dally, 811 cfs Feb. 1.

1925-51: Maximum discharge, 22,800 cfs May 1, 1938 (gage height, 12.90 ft); minimum daily, 3 cfs Jan. 10-14, Feb. 2, 22-25, 1938, when gates In dam were closed.

Remarks. Records excellent. Diversions above station for irrigation of about 135,000 

acres. Flow regulated by diversion at and operation of gates in Black Canyon Dam and 

by Cascade Reservoir (see p. 172 ), Deadwood Reservoir (see p. 160 ), Payette Lake 

(see p. 165 ), and Lake Fork Reservoir (see p. 169 ).

Cooperation. Gage-height record collected in cooperation with Bureau of Reclamation. 

Revisions (water years). W 1153 : 1946(m), 1948(m).

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

2.4 

3.0 

4.0 

5.0

770

1,410

2,620

4,010

6.0 

7.0 

8.0 

9.0

5,710

7,570

9,600

11,800

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

2,070

2,060 

1,910

1,910

1,950

2,000

1,890

1,730

1,880

1,820

1,790

1,870

1,850

2,110

1,930

1,950 

1,660

1,570

1,450

1,380

1,340

1.120

 1,180

1,240

1,190

1,330

1,570

1,720

2,250

2,550

3 . 110

55,380

1,786

109,800

Nov.

3,290

3.380 

3,250

3,130

3,060

3,050

3,010

3,110

3,020

2,820

2,880

3,060

3,130

2,400

1,790

1,670 

1,830

1,820

1,650

1,510

1.420

1,480

1,450

1,450

1,540

1,630

1,610

1,470

*1,630

1,630

68,170

2,272

135,200

Dec.

1,690

1,670 

1,590

1,900

1,880

1,750

2,070

2,090

1,840

1,850

1,870

1,790

1,810

1,780

1,840

1,970 

1,830

1,710

1,650

1,650

1,650

1,630

1,520

1,580

1,570

1,570

1.390

1,530

*1,930

2,010

2.090

54,700

1,765

108,500

Jan.

1,730

1,720 

2,060

2.150

1,940

1,850

1,550

1,610

2,070

2,020

1,790

1,530

1,470

1,460

1,510

1,470 

1,460

1,710

1,590

1,350

1,590

1,810

1,510

1,460

1,710

1,690

1,690

1,400

1,240

1,320

977

50,437

1,627

100,000

Feb.

8U

834 

1,550

1,710

2,880

2,280

4 J.5_20

4,070

3,820

3,740

4,070

4,190

*3,620

2,920

2,880

2,680 

2,510

2,440

2,210

2,130

2,130

2,010

1,950

1,910

1,960

1,830

1,700

1,750

_

-

71,105

2,539

141,000

Mar.

1,730

m2,570

3,480

3,560

*3,490

3,390

3,420

3,280

3,240

3,250

3,420

3,490

3,800

m3,560

3,600

3,680

3,840

3,620

3,000

2,720

2,250

2,970

3,220

3,180

3,210

3,600

3,420

99,310

3,204

197,000

Apr.

3.590

3,890 

4,590

5,490

6,520

7,810

8,610

8,930

8,650

8,770

8,330

8,270

8,390

9,050

9,240

8,870 

*8,670

8,650

9,240

8,990

8,170

7,570

7,270

7,340

7,170

6,960

7,080

8,530

10,500

9,140

-

234,280

7,809

464,700

May

8,170

7,570 

7,130

6,620

6.560

7,020

8,290

9,330

9,200

9,200

9,810

9,890

9,430

8,610

8,010

7,970

8,450

*9,010

9,500

9,450

9,220

9,430

10,200

10,300

9,890

10,600

11,300

11,800

11,400

10,300

9,450

283, 110

9,133

561,500

June

8,590

8,130 

7,67O

7,530

7,990

8,110

7,770

7,230

6,810

6,720

6,700

7,130

7,790

*8,210

8,670

9,620 

9..B70

9,330

8,890

8,390

7,630

7,610

7,080

6,640

6,470

6,000

5,840

5,780

5,710

5.490

225,400

7,513

447,100

July

5.840

5,690 

5,220

5,210

5,080

4,660

4,470

4,200

4,070

3,780

*3,830

3,580

3,480

3,350

3,530

3,480 

2,980

2,880

2,890

3,480

3,020

2,420

2,890

2,650

2,510

2,340

2,200

2,170

2,300

2,320

2,230

108,750

3,508

215,700

Aug.

1,870

2,060 

2,070

2,140

2.440

2,060

1,940

1,890

1,910

1,830

1,810

1,810

1,850

1,930

 1,890

1,820 

1,790

1,760

1,750

1,670

1,650

1,640

1,690

1,840

1,850

1,700

1,610

1,660

1,530

1,480

1.450

56,390

1,819

111,800

Sept.

1.330

1,270 

1,240

1,220

1,210

1,270

1,230

1,220

1,270

1,280

1,200

1,200

1,210

1,160

1,150

1,170 

1.060

1,140

1,160

1,150

1,110

1,120

1,120

1,090

1,140

1,300

1,200

 1,160

1,140

1,090

-

35,610

1,187

70,630

Calendar year 1950 : Max 11,100 Mln 635 Mean 3,413 Ac-ft 2,471,000

Water year 1950-51 : Max 11,800 Mln 811 Mean 3,678 Ac-ft 2,663,000

Discharge measurement made on this day.
PA7ETTE RIVER BASIN 177

Payette River near Payette, Idaho

Location. Lat 44°02'30", long. 116°55'30", in SW£ sec. 10, T. 8 N. , R. 5 W., on right 

bank at highway bridge, if miles south of Payette.

Drainage area. 3,240 sq mi, approximately.

Records available.--August 1935 to September 1951. 

(published as "at Payette") found to be unrelia

Records for January 1895 to July 1897 

liable.

Gage. Water-stage recorder. Datum of gage is 2,138.44 ft above mean sea level, unadjusted. January 1895 to July 1897, staff gage at site 2 miles downstream at different 

datum. Prior to Aug. 8, 1939, wire-weight gage at site 50 ft downstream at present 

datum.

Average discharge.--16 years (1935-51), 3,070 cfs.

Extremes.--Maximum discharge during year, 11,800 cfs May 28 (gage height, 9.60 ft); minimum, 958 cfs Mar. 25 (gage height, 4.64 ft); minimum daily, 1,000 cfs Feb. 2.

1895-97, 1935-51: Maximum discharge observed, 28,300 cfs June 4, 1896 (gage height, 

9.30 ft site and datum then in use); minimum, 180 cfs Oct. 13, 20, 1935 (gage height, 

2.04 ft); minimum daily, 220 cfs Oct. 5, 1935.

Remarks.--Records good. Diversions above station for irrigation of about 188,000 acres. 

Flow regulated by Black Canyon Dam .and reservoirs on tributary streams.

Rating table, water year 1950-51, except period of ice effect (gage

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

(Shifting-control method used July 10 to Aug. 26)

4.7 

5.0 

6.0 

7.0

1,000

1,430

3,020

4,900

8.0 

9.0 

9.5

7,090

9,800

11,400

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

AC- ft

Oct.

2,160 

2,160

2,110

2,060

2,160

2,220

2,270

2,090

2,090

2,080

1,970

2,000

1,960

2,060

2,090

2,060

1,940

1,740

1.610

1,660

1,620

1,610

1,620

1,670

1,640

1,700

1,970

2,110

2,450

2,900

3.200

62,980

2,032

124,900

Nov.

3,720 

5^890

3,800

3,650

3,580

*3,560

3,450

3,490

3,540

3,310

3,220

3,420

3,490

3,270

2,330

2,020

2,160

2,110

2,000

1,910

1.740

1,820

1,820

1,740

1,800

1,900

1,980

1,780

1,910

1,970

-

80,380

2,679

159,400

Dec.

1,940 

2,030

1,940

2,060

2,320

2,090

*2,300

2 530

2*250

2,190

2,110

2,130

2,060

2,110

2,080

2,270

2,140

2,060

1,920

1,940

1,920

1,920

1,820

1,820

1,850

1,820

1.720

1,730

1,880

2,290

2,460

63 , 700

2,055

126,300

Jan.

2,130 

1,940

2,250

2,330

2.550

2,110

1,820

1,860

1,920

2,350

2,050

1,840

1,620

1,660

1,730

,860

,700

,910

,780

,660

1,660

1,900

1,860

1,760

1,860

2,030

1,940

1,840

1,580

*bl,550

bl,400

58,050

1,873

115,100

Feb.

bl.lEO 

bl.QOO

bl,500

1,730

3,540

2,730

5,110

5.250

4,620

4,250

4,400

4,560

4,080

3,540

3,130

2,900

2,650

2,610

2,490

2,240

2,250

2,270

2,160

2,030

2,050

2,060

1,820

*1,880

-

-

-

80,000

2,857

158,700

Mar.

1,900 

1.740

1,790

1,910

3,700

3,690

3,800

3,720

3,670

3,670

3,490

3,520

3,600

3,840

3,910

4.860

4,220

3,950

3,800

3,990

4,100

4,120

3,540

3,070

2,370

3,330

3,330

3,470

3,470

3,820

3,890

107,280

3,461

212,800

Apr.

3. 890 

4,060

4,540

5,420

6,410

7,660

8,560

8,890

9,010

8,810

8,700

8,240

8,420

8,780

9,500

9,090

8,500

*8,420

8,750

8,640

8,070

7,280

6,900

6,740

6,740

6,370

6,460

7,380

10.600

10,000

-

230,830

7,694

457,800

May

8,560 

7,760

7,230

6,640

6,620

6,480

7,580

8,950

9,240

9,010

9,470

10,300

10,000

9,090

8,240

7,920

8,150

8,720

9,120

9,180

*9,040

8,810

9,180

9,740

9,300

9,530

10,500

11,100

11,500

10,300

9,500

276,560

8,921

548,500

June

8,530 

7,920

7,460

7,160

7,360

8,130

7,920

7,330

6,900

6,640

6,550

6,690

7,400

7,710

8,130

8,980

9.440

*9 , 240

8,750

8,210

7,560

7,070

6,850

6,130

5,860

5,500

5,14Q

5,040

4,960

4.680 "

215,240

7,175

426,900

July

5,140 

5,120

4,840

4,760

4,860

4,390

4,080

3,970

3,740

3,520

3,450

3,290

3,110

3,020

3,090

*3,160

2,950

2,580

2,380

2,660

2,760

2,110

2,250

2,270

2,080

1.960

1,820

1,790

1,800

1,910

1,820

96,680

3,119

191,800

Aug.

1,680 

1,580

1,600

1,640

1.790

1,780

1,580

1,540

1,520

1,560

1,490

1,490

1,500

*1,560

1,560

1,490

1,490

1,440

1,430

1,430

1.560

1,380

1,430

1,670

1,720

1,560

1,580

1,550

1,540

1,430

1,420

47,790

1,542

94,790

Sept.

1,570 

1,340

1,270

1,210

1,140

1,130

1,130

1,080

1,110

1,140

1,130

1,100

1,110

1,130

1,110

1,140

1,130

*1.080

1,180

1,080

1,110

1,100

1,100

1,110

1,110

1,220

1,300

1,250

1,200

1,170 "

34,780

1,159

68,990

Calendar year 1950: Max 10,600 Min 1,030 Mean 3,396 Ac-I't 2,459,000

Water year 1950-51: Max 11,300 Min 1,000 Mean 3,710 Ac-ft 2,686,000
178 WEISER RIVER BASIN

Welser River at Tamarack, Idaho

Location. La t 44°57', long. 116° 23', in sec. 31, T. 19 N., R. IE., on left bank 43 ft 

upstream from railroad bridge, 0.65 mile south of Tamarack, and li miles upstream from 

Beaver Creek.

Drainage area. 36.5 sq mi.

Records available. September 1936 to September 1951.

aage. Water-stage recorder. Altitude of gage is 4,080 ft (by barometer). Prior to Oct. 

8, 1949, staff gage at site a quarter of a mile upstream at different datum.

Average discharge. 15 years, 42.0 cfs.

Extremes. Maximum discharge during year, 474 cfs Apr. 6 or 7 (gage height, 4.87 ft); minimum; 1.9 cfs Oct. 9 (gage height, 1.11 ft).

1936-51: Maximum discharge observed, 775 cfs Mar. 27, 1940 (gage height, 6.00 ft, 

site and datum then in use); minimum observed, 1.0 cfs Sept. 2, 1947 (gage height, 0.55 

ft, site and datum then in use).

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

for periods of no gage-height record, which are poor. No diversions above station. 

Diurnal fluctuation caused by mlllpond at Tamarack. Small flow from Boulder Creek in 

Salmon River basin enters Weiser River above station through transmountain diversion 

during late irrigation season.

Rating table, water year 1950-51, except periods of Ice.effect (gage 

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

1.3 

1.5 

1.7 

2.0 

2.3

5.0

10

18

34

55

2.6 

3.0 

3.5 

4.0 

4.8

85

142

225

314

460

Discharge, in cubic feet per second, water year October 1850 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

Total

Mean

Ac-ft

Oct.

7.2

6.9

7.2

7.4

11

*11

9.1

8.0

5^1

7.7

7.4

7.4

7.2

7.2

7.4

8.2

7.7

13

10

8.0

6.7

6.9

7.2

7.2

7.4

13

13

36

39

34

22

357.3

11.5

709

Nov.

21

22

19

18

18

17

17

16

15

10

*13

13

13

14

13

14

14

8.9

12

13

12

12

12

13

13

13

14

18

-

453.9

15.1

900

Dec.

20

i£

19

27

22

19

20

19

18

18

17

*17

17

17

19

21

21

21

21

21

21

21

21

21

16

17

18

18

18

19

18

598

19.3

1,190

Jan.

16

ii

17

18

b!6

b!3

b!3

14

14

14

14

14

14

14

14

b!3

b!4

14

14

13

13

14

b!2

*13

12

13

b!2

bll

bll

b!2

13

428

13.8

849

Feb.

14

15

15

16

16

16

17

20

25

32

40

50

44

39

34

30

29

28

28

27

27

26

26

25

23

21

20

19

-

-

-

722

25.8

1,430

Mar.

17

16

16

16

16

16

16

*b!6

b!5

b!5

b!5

b!5

b!6

17

19

22

22

30

35

37

48

60

62

64

80

100

130

130

120

120

110

1,411

45.5

2,800

Apr.

140

190

250

350

430

450

440

420

400

370

350

330

330

360

*375

350

334

330

314

276

225

189

155

144

158

*142

156

264

336

271

-

8,809

294

17,470

May

216

172

147

136

132

133

160

153

136

124

130

138

116

99

85

78

76

71

66

60

55

49

46

44

 41

36

35

33

30

30

29

2,856

92.1

5,660

June

26

26

23

22

32

33

40

35

27

25

24

26

27

22

21

20

18

17

17

*16

15

14

14

14

15

14

13

12

12

11

-

631

21.0

1,250

July

11

11

10

15.

13

12

11

9.9

9.9

9.4

9.1

8.8

9.1

8.8

8.5

8.0

7.7

8.0

*7.7

7.7

7.4

7.7

6.9

8.0

7.4

7.4

6.4

6.4

6.0

5.7

eTc>

268.9

8.67

533

Aug.

6,0

6.0

7.2

7.4

7.7

7.4

7.2

7.4

7.2

6.9

7.2

7.2

6.7

6.4

6.9

6.7

6.0

*6.2

6.4

6.4

6.2

6.7

8.2

8.5

777

6.9

6.4

7.2

8.0

6.9

6.7

215.9

6.96

428

Sept.

6.2

6.2

6.0

6.0

6.0

5,7

670

6.4

6.2

6.2

6.2

6.2

6.4

6.0

6.0

6.0

6.2

6.0

5.7

6.4

5.7

*5.7

6.0

6.0

6.0

6.2

6.2

6.2

6.2

6.7

-

182.9

6.10

363

Calendar year 1950 ; Max 363 Min 4 Mean 46.1 Ac-ft 33,400

Water year 1950-51: Max 450 Mln 5.7 Mean 46.4 Ac-ft 33,580

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. No gage-height record Jan. 31 to Mar. 7, Mar. 18 to Apr. 14; discharge estimated on basis 

of weather records and records for other Weiser River stations and nearby streams.
WEISER RIVER BASIN 

Lost Valley Reservoir near Tamarack, Idaho

179

Location. Lat 44°57'30", long. 116°28'00", in sec. 28, T. 19 N., R. 1 W., a short dis-

 tance upstream from outlet gates near left end of dam on Lost Creek, 4 miles west of 

Tamarack and 16 miles north of Council.

Drainage area. 29.4 sq mi.

Records available.--May to September 1924, May 1926 to September 1951.

Gage. Staff gage. Datum of gage is 4,748.8 ft above mean sea level (river-profile 

survey). Prior to May 1926, datum 1.4 ft higher.

Extremes.--Maximum gage height observed during year, 26.66 ft June 21, minimum observed,

 15.20 ft Oct. 16.

1924, 1926-51: Maximum gage height observed, 26.90 ft 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 ft in 1929.

 Permanent spillway crest is at gage height 22.26 ft; flashboard structure built in 1938 

to permit storage to gage height about 26 ft. 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 1950 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.

-

-

-

-

-

16.32

-

-

-

-

-

-

-

-

-

15.20

-

-

-

-

-

-

-

-

-

-

-

-

-

-

~

Nov.

_

11 -

-

-

-

15.50

-

-

-

-

15.6

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

~

Dec.

16.3

Jan. Feb. Mar.

18.75

Apr. May.

_

_

_

-

-

_

.

_

_

-

.

-

_

_

-

24.16

_

-

-

24.00

_

_

-

-

24.86

_

-

25.05

-

-

-

June

26.66

-

July

_

_

_

-

-

_

_

_

_

-

_

.

_

_

26.10

_

_

_

25.60

.

_

.

_

-

_

_

-

24.10

.

-

Aug.

_

-

_

_

 -

_

_

_

_

-

_

21.20

.

-

_

_

20 ..44

-

_

_

-

~

-

_

-

-

-

.

-

Sept.

_

_

_

-

-

_

,

.

_

-

_

.

_

-

15.50

_

_

_

-

_

..

15.38

_

-

_

_

-

-

_

-
180 WEISER RIVER BASIN

Lost Creek near Tamarack, Idaho

Location.--Lat 44°57', long. 116°28', in sec. 28, T. 19 N., R. 1 W., on right bank a 

quarter of a mile downstream from dam of Lost Valley Reservoir, 4 miles west of Tamarack, and 16 miles north of Council.

Drainage area.--29.4 sq mi.

Records a vail able. January 1910 to August 1914, May 1920 to September 1921, May 1934 to 

September 1951.

Gage. Water-stage recorder. Datum of gage is 4,729.6 ft above mean sea level (riverprofile survey). Prior to Apr. 1, 1912, staff gage at same site and datura.

Average discharge.--21 years (1930-51), 37.1 cfs.

Extremes. Maximum discharge during year, 267 cfs Apr. 30 (gage height, 2.82 ft); minimum, 

6.7 cfs June 7; minimum gage height, 1.24 ft for long periods in November, December, 

and January.

1910-14, 1920-21, 1924-51: Maximum discharge, 688 cfs May 17, 18, 1921 (gage 

height, 4.29 ft); practically no flow at times when gates in dam were closed.

Remarks.--Records good except those below 10 cfs and those for periods of no gage-height 

record, which are fair. No diversion between reservoir and station; practically entire 

flow diverted below station during irrigation season. Flow regulated since 1910 by 

Lost Valley Reservoir (see preceding page).

C ooperati on.--Water-s tage recorder inspected occasionally by Lost Valley Reservoir Co. 

Revisions.--W 833: Drainage area.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.2

1.3

1.4

1.5 

1.7

5.7

9.0

14

20

36

2.0 

2.3 

2.6 

2.9

70

116

187

280

Discharge, in cubic feet per second, water year October 1950 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

26

29

30

31

Total

Mean

Ac- ft

Oct.

f

45

45

45

*45 

45

44

43

43

43

43

43

42

42

42

42

42

42

42

28

S.,0 

8.0

8.0

8.0

6.0

8.0

8.0

6.0

8.0

8.0

977.0

31.5

1,940

Nov.

sTo

U.

7.7

8.0

6.0 

7.7

7.7

7.7

8.0

*8.0

8.0

8.0

8.0

B.O

7.7

7.7

7.7

7.7

7.7

7.7

7.7 

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

"

234.0

7.80

464

Dec.

JLZ 

7.7

7.7

7.7

B.O

8.0 

8.0

7.7

7.7

8.0

8.0

8.0

*7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7 

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

8.0

240.8

7.77

478

Jan.

B.O 

8.0

8.0

8.0

8.0

8.0 

8.0

B.O

8.0

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7 

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

242.3

7.82

481

Feb.

Ttf

7 '.9

7.9

7.9

7.9 

7.9

7.9

7.9

7.9

7.9

7.9

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

B.O

f*

8.1

8.1

8.1

8.1

8.1

-

-

-

223.3

7.98

443

Mar.

H:

8^2

8.2

8.2

8.2 

8.2

8.2

B.2

8.2

8.2

B.5

873

B.3

8.3

8.3

8.3

8.3

8.3

8.3

*8.3

8.3 

8.3

8.3

8.3

8.3

8.3

8.3

8.3.

8.3

8.3

256.0

8.26

508

Apr.

HS..7

8.7

9.0

9.0 

9.4

9.4

9.4

9.4

21

48

86

124

160

193

207

225

235

225

207

182 

155

143

132

128

130

168

244

264

-

3,367.0

112

6,680

May

241 

210

179

158

148

148 

165

184

193

193

202

219

210

193

168

155

150

143

138

103

55

32 

40

46

*51

54

58

38

18

16

16

3,924

127

7,780

June

17 

20

22

25

31

ft

7.4

BTT

9.9

11 '

12

11

12

12

13

15

16

18

18

*18

18 

18

32

30

28 '

26

23

22

20

-

566.6

18.9

1,120

July

19

18

16

18

17

16 

15

14

13

12

10

40

69

68

66

65

*65

64

64

64 

64

62

62

62

62

61

68

74

74

1,341.8

43.3

2,660

Aug.

74 

74

73

71

71

71 

71

70

70

70

69

69

68

68

68

68

68

*68

68

68

68

66 

66

66

65

65

64

64

64

62

62

2,109

68.0

4,180

Sept.

62 

62

62

62

61

61 

61

61

61

61

60

60

60

60

59

45

9^0

9.0

9.4

9.4

14

18 

18

*18

18

18

18

18

18

17

-

1,169.8

39.0

2,320

Calendar year 195O: Max Sol Min 5 Mean 39.2 Ac-ft 28,360

Water year 1950-51: Max 264 Min 7.4 Mean 40.1 Ac-ft 29,050

* Discharge measurement made on this day.

Mote. No gage-height record Jan. 14 to Mar. 20 when gates were nearly closed and were not reset; 

discharge estimated on basis of head in reservoir.
WEISER RIVER BASIN 181

Welser River near Council, Idaho

Location. Lat 44°41', long. 116°29', In sec. 29, T. 16 N. , R. 1 W., on left bank 0.7 

mile downstream from Cottonwood Creek, 2 miles upstream from Middle Pork, and 3-j 

miles southwest of Council.

Drainage area.--390 sq ml.

Records available. April 1937 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,850 ft (by barometer). Prior to 

 (Jet. 28, 1938, staff gage at site 370 ft downstream at datum 0.58 ft higher. Oct. 

28, 1938, to Apr. 21, 1939, staff gage at present site and datum.

Average discharge.--14 years, 406 cfs.

Extremes.--Maximum discharge during year, 2,210 cfs Apr. 7 (gage height, 6.03 ft); minItnum, 29 cfs Sept. 20 (gage height, 0.69 ft).

1937-51: Maximum discharge, 6,700 cfs Mar. 16 or 17, 1938 (gage height, 7.6 ft, 

from floodmark, site and datum then in use), from rating curve extended above 3,500 

cfs; minimum, 22 cfs June 29, 1940.

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

FTow partly regulated by Lost Valley Reservoir (see p. 179 ) and other reservoirs. 

Many diversions above station for irrigation.

Rating table, water year 1950-51, except periods of Ice.effect (gage 

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

1.0 

1.3

2.0

62

104

160

250

2.5 

3.0 

3.5 

4.0 

5.0 

6.0

385

547

742

980

1,540

2,220

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

80

80

80

81

94

*114

102

96

91

88

87

85

84

84

85

88

94

119

109

102

98

84

69

67

73

119 

116

190

293

248

179

3,379

109

6,700

Nov.

160

164

146

138

132

127

123

123

111

*88

111

111

104

109

104

109

125

123

127

111

104

106

106

102

102

104 

106

104

106

125

"

3,511

117

6,960

Dec.

129

106

127

221

185

183

301

243

224

219

208

*203

181

185

217

208

214

212

203

194

185

179

179

175

168

156 

156

160

166

217

190

5,894

190

11,690

Jan.

158

173

185

185

173

123

118

138

b!60

160

160

154

146

146

156

156

162

203

192

162

177

181

166

*168

168

170 

168

bllO'

b70

b95

b!20

4,803

155

9,530

Feb.

b!30

bl40

b!50

b!60

b200

214

393

554

692

773

915

975

773

621

533

475

412

400

339

336

317

298

296

293

291

248 

250

240

-

-

-

11,418

408

22,650

Mar.

228

233

190

217

*217

210

199

190

194

162

162

177

170

183

358

583

443

394

456

591

742

786

782

846

995

1.120 

1,120

970

950

970

823

15,661

505

31,060

Apr.

885

1,080

1,310

1,570

1,830

2,090

2.120

2,060

1,860

1,740

1,580

1,550

1,650

1,840

1,850

*1,760

1,720

1,740

1,670

1,530

1,290

1,120

995

900

837

832 

890

1,370

1,880

1,630

-

45,179

1,506

89,610

May

1.570

1,160

1,020

960

950

1,010

1,190

1,200

1,180

1,180

1,240

1,320

1,200

1,080

980

935

955

955

915

866

768

721

738

725

*680

640 

648

640

522

459

112

28,619

923

56,760

June

365

336

323

314

418

424

397

362

323

306

306

328

334

312

317

309

283

268

252

*224

210

194

183

177

177

166

156

146

129

121

8,160

272

16,190

July

114

106

96

127

129

112

107

99

94

85

77

67

57

55

70

82

81

*78

77

75

77

77

77

72

69

67 

66

67

63

68

69

2,560

82.6

5,080

Aug.

68

69

68

69

68

67

68

68

68

67

64

64

66

64

64

64

66

*64

61

61

61

64

73

72

69

69 

70

82

91

85

85

2,139

69.0

4,240

Sept.

81

78

78

73

72

73

72

70

72

72

72

73

70

64

64

64

51

31

30

29

30

*31

37

36

36

36 

37

38

39

51

"

1,660

55.3

3,290

Calendar year 1950: Max 2,650 Mln 43 Mean 418 Ac-ft 302,400

Water year 1950-51: Max 2,120 Mln 29 Mean 364 Ac-ft 263,800

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
182 WEISER RIVER BASIN

Mesa Orchards Canal near Mesa, Idaho

Location. La t 44°38', long. 116°25', in sec. 14, T. 15 N., R. 1 W., on left side of flume 

1,500 ft from lower end, 1-| miles northeast of Mesa, and 3 miles downstream from headgates.

Records available. 1924, 1928-51 (irrigation seasons only prior to 1947).

Gage. Staff gage read twice daily. Prior to 1938, staff gages in flume at sites within 

bOO ft of present site at different datums.

Extremes. 1924, 1928-51: Maximum daily discharge, 39 cfs several days in July 1945, July 

1947, and July 1951; no flow during nonirrigation seasons.

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

Canal diverts from Middle Pork Weiser River in SEi?JWi 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 cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

1 a7

\ *7.3

' a7

217.3

7.01

431

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.5

3.8

2.5

*.4

5.0

7.4

771

7.4

36.4

1.21

72

May

7.4

6.5

6.5 6.5'

6.5

6.5

6.5

6.5

8.9

8.9

3.0

0"0

10

15

16

17

9.8

7.1

7.1

8.1

8.9

10

*17

24

25

25

26

28

29

27

383.7

12.4

761

June

26

23

2T

25

28

28

28

30

32

31

31.

32

33

34

35

35

34

34

35

*34

35

35

30

26

27

31

34

35

36

36

-

936

31.2

1,860

July

34

36

37

37

37

36

35

35

35

35

36

37

38

38

39.

39

39

*39

39

39

23

5?

38

38

37

36

37

37

38

36

37

1,126

36.3

2,230

Aug.

SB- 37

35

34

34

33

33

32

32

31

31

30

30

30

28

28

*27

26

26

26

25

26

29

31

28

27

26

30

29

27

28

925

29.8

1,830

Sept.

26

2T

25

25

23

22

22

21

21

21

21

20

20

20

19

18

19

18

18

11

17

*18

18

18

18

20

19

18

18

18

-

604

20.1

1,200

Calendar year 1950: Max 38 Mln 0 Mean 12.3 Ae-ft 8,900

Water year 1950-51: Max 39 Mln 0 Mean 11.6 Ac-ft 8,380

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of reported operation by The Mesa Co. and 

1 discharge measurement.
WEISER RIVER BASIN 183

Weiser River near Cambridge, Idaho

Location.--Lat 44°35', long. 116°38', in NE£ sec. 1, T. 14 N., R. 3 W., on left bank 2£ 

miles northeast of Cambridge and 2$ miles upstream from Rush Creek.

Drainage area. 605 sq mi.

Records available. March 1939 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,660 ft (by barometer). Prior to Apr. 

23, 1939, staff gage at same site and datum.

Average discharge. 12 years 639 cfs.

Extremes. Maximum discharge during year, 3,060 cfs Apr. 7 (gage height, 6.02 ft); minimum, 

 39 cfs Sept. 20, 21, 22 (gage height, 0.77 ft).

1939-51: Maximum discharge, 6,670 cfs Mar. 31, 1940 (gage height, 8.30 ft); minimunt, 

23 cfs Oct. 1, 1943; minimum gage height, 0.66 ft Dec. 12, 1949.

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. 179 ) and other 

reservoirs. Diversions above station for irrigation of about 9,200 acres.

Rating table, water year 1950-51, except period of Ice effect (gage 

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

0.8 

1.0 

1.3 

1.6 

2.0 2'.5

39

60

105

168

273

451

3.0 

3.5 

4.0 

5.0 

6.0

665

940

1,260

2,020

2,970

Discharge, in cubic feet per second, water year October 1950 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

26

29

30

31

Total

Mean

Ac-ft

Oct.

95 

96

96

96

*109

161

134

122

116

109

96

96 

100

103

105

107

111

159

150

132

120

113

93

50" 88

a!75

a!70

a300

a500

aJSO"

a350

4,772

154

9,470

Nov.

a250 

a260

514

220

217

207

200

200

*173

145

156

163 

154

156

154

152

170

175

175

156

154

150

152

147

147

150

152

152

150

170

-

5,249

175

10,410

Dec.

182 

152

T7?

298

301

264

536 539~

397

378

352

*335 

292

285

352

335

331

342

311

298

282

270

270

258

250

236

228

236

241

304

324

9,254

299

18,360

Jan.

£47 

273

288

28S

276

197

173

185

258

256

247

239 

222

225

236

Z47

253

335

SIT

267

292

288

264

270

*267

270

267

197

bios

b!40~

197

7,590

245

15,050

Feb.

570" 241 

279

285

374

412

981

1,460

1,450

1,620

1,640

1,840 

1,420

1,110

934

812

695

680

561

561

524

495

495

487

487

401

408

389

_

_

-

21,311

761

42,270

Mar.

352 

374

311

338

342

331

*324

304

318

261

SH5" 244

282

307

605

1,170

852

726

852

1,110

1,420

1,450

1,370

1,460

1,660

1,830

1,840

1,550

1,490

1,600

1,330

26,688

861

52,930

Apr.

1,570 

1,590

1,880

2,190

2,500

2,900

2,980

2,91(5

2,650

2,480

2,240

2,230 

2,370

2,700

2,720

*2,590

2,570

2,630

2,570

2,330

2,010

1,760

1,580

1,460

1,370

1,410

1,510

2,160

2,860

2,480

-

67,020

2,234

132,900

May

2,060 

1,760

1,570

1,510

1,520

1,640

2,040

2,050

2,040

2,080

2,240

2.550 

2,126

1,890

1,680

1,670

1,760

1,770

1,760

1,680

1,580

1,560

1,660

*1,610

1,520

1,440

1,450

1,490

1,250

1,090

958

52,798

1,703

104, 700

June

846 

774

742

715

892

5SS~ 916

768

685

656

670

715 

726

685

710

700

£51

609

*566

524

491

455

424

412

404

374

342

311

288

261

-

18,141

605

35,980

July

250 

236

217

244

267

230

212

194

182

173

154

137 

124

111

113

132

120

*105

103

98

98

100

91

82

74

72

61

57

54

BT

59

4,206

136

8,340

Aug.

56 

53

57

53

56

59

61

65

66

65

64

64 

65

63

63

64

 63

63

60

57

56

59

72

78

76

76

78

96

114

TOT

102

2,127

68.6

4,220

Sept.

~W100 

98

93

90

85

82

82

80

82

82

82 

82

78

76

73

72

49

41

40

*40

40

42

44

45

42

43

45

47

50

-

2,003

66.8

3,970

Calendar year 1950 : Max 3,520 Mln 53 Mean 664 Ae-ft 480,600

Water year 1950-51: Max 2,980 Mln 40 Mean 606 Ac-ft 438,600

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for other 

Weiser River stations.

b Stage-discharge relation affected by Ice.
184 WEISER RIVER BASIN

Pine Creek near Cambridge, Idaho

Location. Lat 44"35 1 , long. 116 <> 44', in SW£ sec. 32, T. 15 N., R. 3 W. , on right bank 300 

ft upstream from West Pork and 3.2 miles northwest of Cambridge.

Drainage area.--54 sq mi, approximately.

Records available. April 1938 to Spptember 1951.

Gage. Staff gage. Altitude of gage is 2,800 ft (by barometer). Prior to Mar. 7, 1951, 

staff gages at nearby sites at present datum.

Average discharge. 13 years, 37.5 cfs.

Extremes. Maximum discharge observed during year, 156 cfs May 22 (gage height, 2.05 ft); 

minimum observed, 2.0 cfs July 25, 27; minimum gage height, 0.68 ft Oct. 1,3, July 25, 

27.

1938-51: Maximum discharge observed, 505 cfs May 27, 1948 (gage height, 3.60 ft), 

from rating curve extended above 200 cfs by logarithmic plotting, but may have been more 

when gage was overtopped June 3, 1948; minimum observed, 0.7 cfs Aug. 3, 1949; minimum 

gage height observed, 0.43 ft Aug. 27, 28, 1947.

Remarks. Records fair except those for periods of ice effect, which are poor, 

twice daily. Several diversions above station for irrigation.

Rating table, water year 1950-51, except periods of Ice effect (gage

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

(Shifting-control method used Mr. 7-14, Apr. 14 to May 28,

July 13 to Sept. 30)

Gage read

0.5

.6

.7

.8

1.0

1.0 

2.5 

5.0

1.2

1.5

97

156

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

4.0

4^

4.0

4.5

*5.0

6.1

6.1

6.5

6.1

6.5

5.8

6.5

6.5

6.1

5.8

6.1

6.5

7.3

6.9

7.3

6.5

6.1

6.5

6.5

7.3

9.3

12

14

15

12

11

224.3

7.24

445

Nov.

14

16

14

14

13

14

12

12

11

*9.8

10

9.8

10

12

13

13

15

16

14

14

14

14

14

14

15

15

15

15

15

16

-

403.6

13.5

801

Dec.

14

14

16

18

IP

20

18

18

19

18

*17

16

16

18

18

17

19

18

17

17

16

16

16

16

16

14

15

16

16

18

15

520

16.8

1,030

Jan.

13

17

18IB"

b!5

b!2

b!2

b!4

olS

b!5

blS

15

14

16

15

16

18

15

b!5

b!4

16

16

17

17

*16

17

18

b!5

b!2

blO~~ b9.0

463.0

14.9

918

Feb.

bll

bl?

b!3

b!4

b!5

b20

b30

31

33

36

54

45

44

43

38

39

39

38

31

28

29

29

31

31

b27

b26

b25

b23

_

_

-

836

29.9

1,660

Mar.

b23

b22

b21

b23

b22

b20

*19

19

18

15

20

18

18

18

28

34

38

38

38

47

58

54

57

62

66

76

75

70

73

61

62

1,212

39.1

2,400

Apr.

68

73

76

92

100

104

107

122

118

103

97

94

96

100

*94

97

98

94

94

82

73

73

73

74

74

*76

78

108

101

88

-

2,727

90.9

5,410

May

79

76

7376-

78

78

121

119

121

124

132

132

115

105

104

107

112

119

118

121

119

145

*148

132

125

119

110

103

92

833

78

3,364

109

6,670

June

74

ES

66

60

53

57

57

51

52

51

53

57

62

60

62

57

52

46

*44

44

42

39

40

34

28

24

23

22

22

21

-

1,419

47.3

2,810

July

19

18

19

19

Z\_

19

17

16

15

15

13

11

9.3

8.4

8.4

8.0

*7.7

7.3

6.5

5.4

4.8

3.8

2.5

2.4

2.2

2.4

2.4

2.4

2.4

2.5

3.2

294.0

9.48

583

Aug.

3.0 375-

3.8

3.8

4.5

4.8

4.5

4.0

3.8

4.0

4.2

3.8

3.5

3.5

3.2

3.0

*3.5

3.5

3.5

3.8

4.2

4.5

5.8

5.0

5.4

4.8

5.4

7.3

6TT

5.8

5.4

134.9

4.35

268

Sept.

5.0

4.8

4.2

4.5

4.0

4.0

4.0

4.0

4.0

4.0

4.2

4.2

3.5

3.2

372

3.5

3.2

3.5

3.8

3.2

*3.5

3.2

3.5

3.8

4.5

4.0

3.8

4.2

4.2

5.4

-

118.1

3.94

234

Calendar year 1950: Max 1S1 Mln 1.9 Mean 37.7 Ac-ft 27,250

Water year 1950-51: Max 148 Mln 2.2 Mean 32.1 Ac-ft 23,230

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
WEISER RIVER BASIN 185

Little Weiser River near Indian Valley, Idaho

Location. Lat 44°30', long. 116°24', in NE£ sec. 1, T. 13 N. , R. 1 W., on left bank 60 

ft downstream from barn at Richardson Ranch, 1 mile upstream from diversion feeding 

C. Ben Ross Reservoir, and 4f miles southeast of Indian Valley.

Drainage area.--81.9 sq mi.

Records available June 1920 to February 1921, March to September 1923, February 1924 

to October 1927, April 1938 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,250 ft (by barometer). Prior to Feb. 

25, 1924, staff gage at approximately present site at different datum. Feb. 25 to 

Apr. 22, 1924, staff gage at Burger Ranch 1 mile downstream at different datum. Apr. 

23, 1924, to Nov. 18, 1927, water-stage recorder or staff gage at site half a mile 

downstream at different datum. May 6, 1938, to Aug. 11, 1950, staff gage at present 

site and datum.

Average discharge.--16 years (1924-27, 1938-51), 101 cfs.

Extremes. Maximum discharge during year, 568 cfs May 22 (gage height, 3.45 ft); minimum, 

TFTfs Sept. 19, 20, 21 (gage height, 0.11 ft).

1920-21, 1923-27, 1938-51: Maximum discharge observed, about 1,840 cfs Peb 4, 

1925; minimum observed, 3.6 cfs Aug. 28-30, Sept. 4,5, 1924.

Remarks.--Records good. One small ranch diversion above station. Many diversions below 

station for irrigation including feeder canal to C. Ben Ross Reservoir.

Rating tables, water year 195O-51, except periods of Ice effect (gage 

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

Oct. 1 to May 23 May 24 to Sept. 30

1.0 

1.3

1.6 

2.0 

2.5 

3.2

107

177

287

484

0.1 

.3

1.3 

1.6 

2.0 

2.5 

3.2

78

112

177

287

484

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cfsra

In.

Ac-ft

Oct.

11

T?

11

12

*16

23

16

17

17

15

13

13

13

13

14

13

15

25

18

15

14

14

13

13

15

25

23

27

44

IT

30

561

18.1

0.221

0.25

1,110

Nov.

30

41

34

34

32

29

29

30

21

»18

25

25

23

23

22

23

23

24

23

23

24

23

23

23

23

24

24

24

24

27

-

771

25.7

0.314

0.35

1,530

Dec.

26

22

57

34

29

30

45

42

43

47

»48

48

42

41

52

49

45

42

40

38

37

35

36

35

34

32

32

32

32

35

34

1,164

37.5

0.458

0.53

2,310

Jan.

27

34

35

35

31

21

5T

b29

33

32

33

31

29

30

42

37

37

38

35

Si

35

40

36

41

»50

56

55

b32

b26

b22

b25

1,059

34.2

0.418

0.48

2,100

Feb.

b28

bSO

32

33

92

80

285

236

280

285

249

205

149

118

101

92

85

78

69

67

64

61

60

57

57

47

54

48

_

_

-

3,042

109

1.33

1.38

6,030

Mar.

47

46

39

48

44

*42

40

37

38

34

33

37

37

42

102

90

70

64

67

83

110

103

90

96

106

110

112

104

109

T55- 113

2,199

70.9

0.866

1.00

4,360

Apr.

123

T55

189

229

273

310

317

310

285

273

261

275

310

346

335

»333

346

360

352

325

282

263

256

252

238

249

265

382 3~5o"

317

8,569

286

3.49

3.89

17,000

May

285

261

252

565

275

320

371

402

402

419

443

440

437

393

365

379

402

410

408

405

408

440

474

»468

452

446

449

446

382

343

297

11,939

385

4.70

5.42

23,680

June

265

252

238

229

280

245

216

197

189

199

216

236

222

229

242

233

214

195

179

»166

*151

141

132

123

115

108

102

97

92

87.

5,590

186

2.27

2.54

11,090

July

82

79

74

80

71

65

61

58

55

54

51

48

45

43

40

39

37

»35

35

33

32

30

27

25

25

24

23

23

22

21

2£

1,357

43.8

0.535

0.62

2,690

Aug.

18

17

17

17

16

15

15

15

15

14

14

13

13

13

13

12

»12

12

11

IT

11

11

15

13

11

11

11

15

18

18

17

434

14.0

0.171

0.20

861

Sept.

16

15

14

14

13

12

12

12

12

12

11

11

11

10

8.6

8.4

8.4

8.2

8.0

575

»8.0

8.4

8.4

8.2

11

13

9.3

8.7

8.7

12

-

320.3

10.7

0.131

0.15

635

Calendar year 1950: Max 372 Win 6 Mean 94.4 Cfsm 1.15 In. 15.63 Ac-ft 68,320

Water year 195O-51: Max 474 Mln 8.0 Mean 101 Cfsm 1.23 In. 16.81 Ac-ft 73,400

Peak discharge (base, 40O cfs).--Apr. 18 (10 p.m.) 405 cfs (2.94 ft)j Apr. 28 (6 p.m.) 440 cfs 

(3.06 ft); May 12 (5 p.m.) 500 cfs (3.25 ft); May 22 (9 p.m.) 568 cfs (3.45 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
186 WEISER RIVER BASIN

Weiser River above Crane Creek, near Weiser, Idaho

Location.--Lat 44°18', long. 116°48', In sec. 10, T. 11 N., R. 4 W., on left bank 1 mile 

upstream from Crane Creek and 9 miles northeast of Weiser.

Drainage area. 1,160 sq ml.

Records available. July 1920 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 2,270 ft (by barometer).

Average discharge.--30 years (1921-51), 863 cfs.

Extremes. Maximum discharge during year, 4,320 cfs Feb. 12 (gage height, 5.13 ft); maximum gage height, 7.18 ft Feb. 7 (Ice jam); minimum discharge, 37 cfs sometime during 

period July 16 to Aug. 15; minimum gage height, 0.84 ft Sept. 21.

1920-51: Maximum discharge, 16,900 cfs Mar. 19, 1932 (gage height, 10.8 ft, from 

floodmarks), from rating curve extended above 9,000 cfs by logarithmic plotting; minimum, 5 cfs (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. Flow partly regulated by Lost Valley Reservoir (see p. 179 ) and other 

reservoirs. Diversions above station for Irrigation of about 22,000 acres.

Revisions (water years).--W 903: 19$2(M).

Rating table, water year 1950-51, except periods of ice effect (gage 

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

0.8 

1.0 

1.3 

1.6 

2.0

34

66

146

260

463

2.5 

3.0 

4.0 

5.0

800

1,230

2,430

4,030

Discharge

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

134

140

*146

150

153

192

235

200

189

189

178

174

164

164

170

170

174

189

248

219

204

192

181

167

164

185 

274

260

429

635

48T

6,750

218

13,390

Nov.

380

407

355

339

325

315

*292

287

282

248

227 256"

260

252

256

248

260

274

278

269

252

252

252

252

252

252 

256

256

252

264

-

8,381

279

16,620

Dec.

292

287

274

334

542

418

628

*816 628"

582

562

536

499

469

536

601

542

562

523

493

463

446

435

435

418

407 

380

386

396

446

608

14,944

482

29,640

Jan.

475

441

549

575

517

429

344

b350

bSOO

bSOO

b480

b460

b450

b450

b470

bSOO

523

555" 697

499

517

530

530

505

511

530 

*549

446

b230

b350~

b400

14,912

481

29,580

Feb.

500 600"

620

b640

bSOO

b900

b2,200

b3,300

3,300

3,670

3,670

5,940

3,070

2,150

1,670

1,450

1,240

1,190

1,020

977

936

944

936

904

912

770 

755

725

_

_

-

43,789

1,564

86,850

Mar.

655

662

575

549

662

628

669

*595

601

530

505" 463

523

648

1,100

2,580

1,720

1,530

1,640

2,220

2,950

2,840

2,350

2,350

2,660

2,730 

2,820

2,350

2,250

2,560

2,140

47,035

1,517

93,290

Apr.

2,030

2,250

2,540

2,850

3,220

3,5SO

5,690

3,590

3,330

3,100

2,880

2,760

2,850

3,170

3,280

3,170

*3,090

3,140

3,100

2,930

2,560

2,210

1,990

1,840

1,690

1,670 

1,770

2,330

3,520

3,090

-

83,230

2,774

165,100

May

2,640

2,290

2,010

1,880

1,890

1,970

2,500

2,660

2,660

2,700

2,910

3,170

3,010

2,620

2,330

2,260

2,390

2,460

2,440

2,360

2,280

*2,220

2,360

2,390

2,250

2,100 

2,070

2,160

1,880

1,620

1,450

71,910

2,320

142,600

June

1,260

1,140

1,090

1,040

1,190

1,350

1,220

1*140

1,040

986

1,020

1,090

1,170

1,110

1,120

1,110

1,040

944

*872

800

718

655

588

562

530

463 

429

380

330

305

-

26,692

890

52,940

July

252" 274

231

227

274

256

223

204

189

181

164

153

134

118

120

*124

135

115

105

102

102

103

100

90

80

75 

68

58

55" 55

59

4,426

143

8,780

Aug.

54

50

4545"

50

54

58

62

64

62

60

60

62

63

*64

61

61

57

57

61

61

57

75

93

93

88 

91

107

143

153

150

2,261

72.9

4,480

Sept.

143

13T

134 127'

124

118

104

96

91

93

96

102

102

96

91

88

88

86

*64

48

47

47

47

48

50

55 

55

57

57

66

-

2,557

85.2

5,070

Calendar year 1950: Max 6,280 Min 52 Mean 995 Ac-ft 720,200

Water year 1950-51: Max 3,940 Mln 45 Mean 896 Ac-ft 648,300

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. No gage-height record Feb. 1-3, July 14, 15, July 17 to Aug. 15; discharge estimated on 

basis of weather records and records for other stations in Weiser River basin.
WEISER RIVER BASIN 

Crane Creek Reservoir near Midvale, Idaho

187

Location. 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 sq mi.

Records available. November 1923 to September 1951.

Gage.--Staff gage. Altitude of gage is 3,190 ft (by barometer).

Extremes. Maximum gage height observed during year, 49.5 ft Mar. 22; minimum observed, 

32.5 ft Nov. 3, 22.

1923-51: Maximum gage height observed, 56.3 ft 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-ft at gage height 55.0 ft (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.

height, in feet, water year October 1950 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.

-

.

32.9

_

-

-

-

-

32.6

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

-

Nov.

-

32.5

-

_

-

32.6

-

-

_

.

-

_

-

-

-

-

_

32.5

-

-

-

_

-

-

-

-

-

Dec.

-

_

-

_

-

_

-

33.05

32.9

-

-

_

-

-

-

-

_

-

-

_

-

.

-

_

-

-

-

Jan.

33.6

_

-

_

-

~

-

-

_

-

-

.

_

-

-

-

_

36.1

-

.

-

36.8

-

_

-

-

-

Feb.

-

_

-

40.5

-

43.7

-

-

46.9

_

-

47.2

-

-

-

47.2

_

-

-

47.1

-

_

-

_

_

-

-

Mar.

-

_

-

46.85

_

_

-

46.9

_

_

-

.

_

_

_

49.1

_

49.5

_

_

-

_

-

_

48.4

_

-

Apr.

-

48.2

-

.

_

_

47.8

-

_

.

-

.

 47.9

_

47.9

-

_

47.9

_

i

-

_

-

_

_

_

-

May

48.1

_

-

_

_

-

-

48.9

_

49.0

_

48.8

_

48.6

-

_

48.5

48.52

_

-

_

_

48.5

_

_

-

June

48.5

_

-

48.3

_

_

-

-

_

48.2

-

_

_

_

48.2

-

.

_

_

_

-

_

48.1

_

_

_

-

July

-

47.9

-

_

47.6

_

-

47.4

_

_

-

_

46.7

46.5

_

-

.

45.8

_

_

45.2

_

_

_

_

44.1

43.8

Aug.

-

_

43.0

.

42.1

_

-

-

_

40.7

-

40.4

,

_

.

-

39.3

_

_

_

38.5

.

_

38.1

.

_

-

Sept.

37.5

37.3

.

36.7

.

-

-

.

35.9

-

_

_

_

_

35.3

_

35.1

34.8

_

-

_

.

_

33.9

_

-
188 WEISER RIVER BASIN

Crane Creek near Midvale, Idaho

Location. Lat 44°22'00", long. 116°37'30", in SE£ sec. 19, T. 12 N., R. 2 W., on right

 bank "400 ft downstream from Crane Creek Dam and 10 miles southeast of Midvale.

Drainage area. 242 sq mi.

Records available.--October 1910 to April 1916, May 1924 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 3,140 ft (by 

"oarometer). Prior to May 1, 1924, staff gage at site 100 ft upstream at different 

datum.

Average discharge.--30 years (1912-15, 1924-51), 69.7 cfs.

Extremes.--Maximum discharge during year, 384 cfs Mar. 27 (gage height/ 2.58 ft); no flow 

for long periods.

1910-16, 1924-51: Maximum discharge observed, 4,240 cfs Dec. 3, 1910 (gage height, 

8.9 ft), from rating curve extended above 3,500 cfs; no flow at times in may years 

when gates in dam were closed.

Remarks. Records good except those below 10 cfs and tho°<5 for periods of no gage-height

 record, which are poor. Flow regulated since 1911 by crane Creek Reservoir (see 

p. 187). No large diversion above station.

Cooperation. Water-stage recorder inspected by Crane Creek Reservoir Admlustration Board. 

Revisions (water years).--W 833: Drainage area. W 963: 1941(M).

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0

.5

3.0

6.5

18

39

1.1 

1.5 

1.9 

3.3 

2.7

111

168

360

400

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

13

13

14

15

16

17

18

19

20

31

23

33

24 

35

36

37

38

29

30

31

Total

Mean

Ac- ft

Oct.

30

19

19

*19

19

19

19

19

19

19

19

19

13

5.8

5.8

5.8

5.4

5.4

5.4

5.4

5.1

5.1

5.4

5.4 

5.8

5.8

5.8

5.8

5.4

5.8

5.3

341.3

11.0

677

Nov.

5.8

B74

5.4

5.1

4.4

4.8

5.1

5.1

*4.8

4.8

4.0

3.4

3.4

3.4

3.0

3.0

3.0

3.0

3.4

3.0

2.8

.5

? i

.2

.2

.2

 .2

.2

.2

-

88.3

2.94

175

Dec.

0.2

.2

.1

0

0

0

0

0

0

0

*.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

a. 3

a. 3

a. 3

a. 3 

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

6.8

0.22

13

Jan.

aO.3

a. 3

a. 3

a. 3

a. 2

a. 3

a.l

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.7

O.O5

3.4

Feb.

0

0

0

0

0

0

15

40

68

109

111

113

159

249

246

243

346

346

343

343

343

340

338

156 

97

96

96

96

_

-

3,592

128

7,120

Mar.

96

96

94

94

94

94

*94,

94

94

94

69

32

32

33

33

34

35

35

35

85

333

306

376

376 

376

376

376

376

287

343

343

4,933

159

9,780

Apr.

343

543

313

190

190 "

190

190

190

190

113

3.8

3.5

3.5

3.5

3.5

3.5

3.5

3.5

1.3

o

0

1.1

6.3

6.5 

6.5

6.5

6.5

6.5

6.5

6.5

-

3,035.4

67.5

4,030

May

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

36

70

154

330

330

220

147

16

16

15

*16

16 

16

16

15

alS

a!5

a!5

alS

1,331.0

43.9

3,640

June

15

15

15

15

15

15

11

7.5

7.0

6.5

6.5

5.4

5.4

5.1

5.1

5.1

5.1

5.4

*5.4

5.1

5.8

5.8

4.8

tt

4.4

5.8

13

13

13

-

350.4

8.35

497

July

13

14

32

45

45

45

45

45

45

45

74

99

99

allO

a!35

a!40

*158

158

158

158

158

179

194

a335 

357

360

360

360

360

340

333

4,158

134

8,350

Aug.

310

307

307

307

207

301

301

199

199

199

190

179

179

179

179

*181

179

179

179

179

179

177

177

177 

154

146

146

113

83

83

83

5,355

173

10, 630

Sept.

83

60

43

53

85

85

85

89

106

106

106

106

106

94

63

63

64

64

65

*65

64

88

101

101 

101

101

101

101

73

56

-

2,476

82.5

4,910

Calendar year 1950: Max 713 Min o Mean 63.0 Ac-ft 45,580

Water year 1950-51: Max 375 Mln o Mean 67.3 Ac-ft 48,700

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of gate changes, weather records, and records for station at mouth near Weiser.
WEISER RIVER BASIN 

Crane Creek at mouth, near Weiser, Idaho

189

Location. Lat 44°18', long. 116°47', on right bank in sec. 14, T. 11 N. , R. 4 W. , Just 

downstream from highway bridge at Harris Ranch, a quarter of a mile upstream from mouth 

and 10 miles northeast of Weiser.

Drainage area. 288 sq mi.

Records available.--July 1920 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 2,240 ft (by barometer) .

Average discharge. 30 years (1921-51), 77.8 cfs.

Extremes. Maximum discharge during year, 1,020 cfs Mar. 15 (gage height, 5.37 ft); minimum, 

0.9 cfs Apr. 17, 18 (gage height, 1.65 ft); minimum daily, 1.0 cfs Apr. 18.

1920-51: Maximum discharge, 2,350 cfs about Feb. 7, 1925 (gage height, 6.80 ft, from 

well-defined marks on gage), from rating curve extended above 1,000 cfs; minimum, 0.2 

cfs May 26, 1931; minimum daily, 1 cfs or less at times during many years; minimum gage 

height, 1.30 ft Jan. 21, 1922.

Remarks. Records good except those below 5 cfs, which are fair. Plow regulated since 

1911 by Crane Creek Reservoir (see p. 137). Several small ditches divert above station 

for irrigation.

Revisions. W 833: Drainage area.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

0.3

1.2

2.3

4.0

6.5

10

20

2.5

2.8

3.9 

4.3

4.7

68

113

195

296

422

593

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

30

21

*22

23

23

23

23

23

23

23

22

21

21

12

9.6

9.6

10

11

10

10

9.6

B79- 8.9

8.9

9.6

11

9.6

9.3

10

9.6

9.3

474.9

15.3

942

Nov.

10

~9.6 11

9.3

8.6

8.2

*8.2

8.6

8.6

8.9

8.9

8.9

8.6

9.3

8.9

8.2

8.6

8.6

8.6

8.6

8.6

8.2

7.6

5.8

5.2

5.2

5.5

5.5

5.5

5.8

-

241.1

8.04

478

Dec.

5.8

578

6.5

7.6

6.5

6.8

9.6

17

15

*9.6

7.6

6.8

6.5

6.5

9.6

20

9.6

7.6

7.2

6.5

6.2

6.2

6.2

6.2

6.2

6.0

6.0

6.2

6.5

20

30

283.8

9.15

563

Jan.

12

11

13

11

9.3

7.2

6.8

7.2

7.2

6.8

6.8

6.8

6.8

6.5

878

35

21

4225-

15

14

38

25

20

20

21

*21

13

12

11

12

472.2

15.2

937

Feb.

10

9.6

10~ 8.9

76

84

562

343

302

374

526

381

250

322

308

310

296

293

288

285

288

290

290

220

122

115

111

110

_

_

-

6,584.5

235

13,060

Mar.

108

106

106

106

106

106

106

106

*108

106

94

42

42

52

300

198

94

80

112

213

454

456

545" 550

541

523

510

493

415

371

331

7,480

241

14,840

Apr.

299

293

£63

220

216

216

213

213

211

173

13

5.2

4.0

3.5

3.5

3.3

*1.2

1.0

173

3.0

3.0

2.3

1.5

3.5

3.3

3.7

3.5

5.8

7.6

7.2

2,397.4

79.9

4,760

May

5.8

5.2

4.0

3.5

5.2

3.3

5.2

12

7.2

6.5

5.8

11

23

56

113

230

230

552" 235

25

16

*12

9.3

5.2

4.8

6.0

5.2

4.8

5.2

5.2

5.0

1,265.4

40.8

2,510

June

8.6

10

12

12

13

13

14ro

8.2

6.5

6.0

7.9

7.9

7.9

6.8

5.5

4.5

*4.8

4.5

3.7

3.2

3.2

3.2

2.8

2.6

2.2 2'.1

2.0

273

3.5

193.9

6.46

385

July

3.8

3.5

4T5

16

25

27

27

27

30

29

44

78

81

92

117

*138

142

144

144

144

144

160

186

188

211

258

260

25?

250

240

223

3,688.8

119

7,320

Aug.

202

209

204

204

200

197

197

191

191

195

188

182

182

175

*169

165

169

169

169

167

165

167

165

160

148

128

132

118

74

74

74

5,130

165

10,180

Sept.

74

60

36

37

73

76

74

74

92

94

94

93

96

94

59

59

60

60

*59

56

57

68

88

90

92

92

96

94

77

57

2,231

74.4

4,430

Calendar year 1950: Max 1,040 Mln 2.2 Mean 77.8 Ac-ft 56,340

Water year 1950-51: Max 562 Min 1.0 Mean 83.4 Ac-ft 60,400

Discharge measurement made on this day.
190 WEISER RIVER BASIN

Weiser Irrigation District Canal near Weiser, Idaho

Location.- -La t 44°15', long. 116°51', in sec. 32, T. 11 N., R. 4 W., on left bank 

downstream from headworks of canal and 7 miles east of Weiser.

miles

Records available. --April 1920 to September 1951 (winter records fragmentary prior to 

1950).

Gage. --Mater-stage recorder. Altitude of gage is 2,160 ft, revised (by barometer).

Extremes . - -1 92 0 -51 : Maximum daily discharge, 213 cfs July 1, 1947; no flow at times when 

gates were closed.

Remarks. Records good except those below 5 cfs, which 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 Weiser and Weiser Bench Irrigation Districts. 

One farm lateral diverts a quarter of a mile above station.

Cooperation. --Water-stage recorder inspected by Weiser Irrigation District.

Rating table, water year 195O-51 (gage height In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used July 14 to Aug. 17)

0.1

.2

 .3

0.6

4.5

10

16

33

1.0 

1.5 

2.O 

2.9

113

147

204

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1 

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

126 

T23

117

*100

104

123

118

103

103

103

102

10O

100

100

100

loo

100

100

101

101

102

50

14

14

14

14

14

14

14

11

2.8

2,387.8

77.0

4,740

Nov.

2.8

2.4

2.0

2.0

1.6

1.6

1.2

*1.2

1.2

1.2

1.2

1.2

1.2

il

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

37.6

1.25

75

Dec.

~0.6 

.6

.9

79

.9

.9

*.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.6

.6

.9

.9

.9

.9

.9

.6

.6

25.8

0.83

51

Jan.

0.6 

.6

.6

.9

.6

.9

.9

.6

.6

.6

.9

.9

.9

.9

.9

1.2

T75

1.2

1.2

al.o

al.O

al.2

al.O

aa.9

a. 9

a. 9

*.9

.9

.9

.9

.9

27.6

0.89

55

Feb.

0.9 

T9

.9

.9

.9

1.2

2.4

TT?

1.2

.9

.9

.9

1.6

1.6

2.0

1.6

1.6

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.6

1.6

_

-

35.6

1.27

71

Mar.

fcf

1.6

1.6

1.2

1.2

1.2

*1.2 1.2"

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

q

ff

.9

.9

.9

.9

37.0

1.19

73

Apr.

0,9

'.9

.9

23

77

88

91

90

87

98

118

136

155

170

170

*158

159

166

167

164

163

166

171

172

161

166

163

152

138

3,572.6

119

7,090

May

139 

141

141

142

142

147

141

136

138

139

141

139

125

115

112

111

115

121

132

139

139

*157

173

175

177

177

184

185

184

184

183

4,574

148

9,070

June

179 

176

177

178

178

174

168

176

175

177

179

179

177

177

182

183

183

*184

182

180

176

182

195

194

193

192

197

199

197

194

5,483

183

10,880

July

200 

2OO

199

194

192

189

190

191

192

187

172

191

188

180

190

200

*198

197

194

190

179

184

202

I9f

194

202

202

199

199

196

192

5,985

193

11,870

Aug.

194 

192

192

196

197

190

184

192

194

197

190

189

187

188

*185

177

179

179

178

178

182

178

188

184

178

177

179

174

169

Tf3

172

5,712

1S4

11,330

Sept.

172 

173

T56

144

164

166

157

144

151

160

161

167

170

161

135

121

119

119

*104

80

68

77

108

113

114

117

121

128

121

92

-

3,983

133

7,900

Calendar year 1950: Max 199 Mln 0.5 Mean 87.5 Ac-ft 63,370

Water year 1950-51: Max 2O2 Mln 0.6 Mean 87.3 Ac-ft 63,200

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Weiser River above Crane Creek 

and Crane Creek at mouth, assuming leakage varied with changing head at headgates.
WEISER RIVER BASIN 

Mann Creek near Weiser, Idaho

191

Location. Lat 44°24', long. 116°54', in sec. 11, T. 12 N., R. 5 W., on left bank 2 miles 

upstream from U. S. Highway 95, 10 miles northeast of Weiser and llj miles upstream 

from.mouth.

Drainage area.--56 sq mi, approximately.

Records available. March 1911 to September 1913, July to November 1920, April 1937 to 

September 1951.

Gage.--Staff gage. Altitude of gage is 2,830 ft (from topographic map). Prior to Feb. 9, 

1951, staff gages at sites within 1,000 ft upstream at different daturns.

Average discharge.--16 years (1911-13, 1937-51), 40.7 cfs.

Extremes. Maximum discharge observed during year, 421 cfs Apr. 5 (gage height, 2.70 ft); 

minimum observed, 0.2 cfs Sept. 7, 8 (gage height, 0.30 ft).

1911-13, 1920, 1937-51: Maximum discharge, 1,540 cfs Mar. 27, 1940 (gage height, 

5.45 ft, from floodmark, site and datum then in use), from rating curve extended above 

slope-area determination at gage height 4.21 ft; no flow Aug. 18 to Sept. 22, 1937, 

July 31 to Se"t. 13, 1939.

Remarks. Records fair except those for periods of ice effect, which are poor. Gage read 

twice daily. One diversion above station for irrigation.

Rating tables, water year 1950-51, except periods of ice effect (gage

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

(Shifting-control method used Feb. 9 to Apr. 8)

Oct. 1 to Feb. 8

1.0

1.1

1.2 

1.4

0.8

2.8

6.7

16

1.6 

1.8 

2.0

Pet. 9 to Sept. 30

1.0

1.2

1.5

53 1.9

2.3

16

34

63

129

245

370

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Total

Mean

Ac- ft

Oct.

2.4 

2.4

2.4

*2.4

2.8

5.1

3.6

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

4.8

6.7

575

4.4

4.0

3.6

3.6

3.2

4.8

6.3

6.3

6.3

5.9

5.1

4.8

121.6

3.92

341

Nov.

5.5

"9.1 12

6.7

6.3

6.3

6.3

6.3

*b4.5

b4.2

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

4.8

4.8

-

175.8

5.86

349

Dec.

5.5 

575

5.5

6.3

6.3

8.1

10

11

10

9.1

*9.1

9.6

11

13

T2

11

11

11

10

9.6

9.1

8.1

8.1

7.2

8.1

9.1

9.1

8.1

8.1

8.1

8.1

275.8

8.90

547

Jan.

ta.o

8.1

8.1

6.3

6.3

6.3

5.5

5.5

6.3

6.3

6.3

6.3

5.5

5.5

5.5

5.5

6.3

8.6

b8.0

b7.0

b8.0

b8. 5

b8.0

blO

11

*12

14

'Eg.O

be.o

b6. 5

b7.0

231.2

7.46

459

Feb.

b8.0 

bFT5

b9.5

blO

bll

bZO

b40

60

72 *102

93

86

69

53

43

37 33

33

29

25

27

24

25

25

18

25

25

25

_

_

-

1,036.5

37.0

2,060

Mar.

22 

18

18

22

22

18

18

*16

17

17

18

16

15

22

43

55

44

42

49

72

97

89

78

84

97

122

116

100

100

102

102

1,651

53.3

3,270

Apr.

114 

132

168

179

307

367

273

218

197

200

168

191

191

212

200

194

*185

182

173

156

137

126

112

97

89

86

93

203

165

145

5,260

175

10,430

May

126 

109

102

106

109

114

124

122

119

114

124

126

119

106

104

104

97

95

86

76

*69

65

*61

60

55

52

46

42

35

34

34

2,735

88.2

5,420

June

34 

34

34

33

32

30

28

27

26

24

23

22

19

24

23

16

15

14

*14

14

14

14

14

14

14

13

12

12

11

11

615

20.5

1,220

July

ft

9.8

11

11

9.8

9.8

8.9

8.9

8.4

7.6

7.1

6.2

6.2

5.8

5.3

*5.0

4.7

4.1

3.3

3.0

3.0

2.7

2.4

2.1

2.0

1.8

1.8

1.5

1.5

JLJ:

177.1

5.71

351

Aug.

1.2 

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.0

.9

.9

.9

*.8

TF

.8

.8

.8

.8

.8

.9

1.0

1.8

1.5

1.2

2.0

.3.0

2.2

2.1

38.2

1.23

76

Sept.

2.0

1.8

1.4

.9

.8

.6

.3

73

.5

.6

.9

1.2

1.2

.9

.9

.8

.8

.8

.8

*.8

.9

1.2

1.4

1.4

1.6

2.1

2.2

2.2

2.1

2.7

-

36.1

1.20

72

Calendar year 1950: Max 241 Min 0.3 Mean 33.4 Ac-ft 24,200

Water year 1950-51: Max 367 Min 0.3 Mean 33.8 Ac-ft 34,500

Discharge measurement made on this day. 

Stage-discharge relation affected by ic
192 SNAKE RIVER MAIN STEM

Snake River at Weiser, Idaho

Location (revised) . La t 44°14'40", long. 116°58'25", in sec. 31, T. 11 N., R. 5 W., on 

right bank a third of a mile upstream from highway bridge at Weiser and a third of a 

mile downstream from Weiser River.

Drainage area. 69,200 sq mi, approximately.

Records available. October 1910 to September 1951. Fragmentary gage-height record obtained by United States Weather Bureau since 1895.

Gage. Water-stage recorder. Datum of gage is 2,086.64 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. Prior to Oct. 1, 1914, staff gage at site half 

a mile downstream at different datum. Oct. 1, 1914, to Oct. 11, 1933, staff gage at 

present site and datum.

Extremes. Maximum discharge during year, 45,900 cfs May 17 (gage height, 9.92 ft); minimum, 10,300 cfs July 19 (gage height, 3.30 ft).

1910-51: Maximum discharge observed, 83,100 cfs May 23, 1921 (gage height, 13.60ft); 

minimum observed, 5,100 cfs Aug. 5, 1924 (gage height, 1.35 ft).

Flood of Mar. 3, 1910, reached a stage of 15.7 ft on old United States Weather Bureau 

gage (discharge, about 100,000 cfs). Flood in June 1894 was considerably higher.

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

fluctuation caused by Swan Falls powerplant. About 2,240,000 acres of land irrigated by 

diversion from river and its tributaries above station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

3.4

4.0 

5.0

10,700

13,300

17,800

22,800

7.0 

8.0 

9.0 

9.9

28,000

33,800

39,900

45,800

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

15,500 

16,100

15,200

*17,800

18,800

18,400

18,200

17,400

16,300

15,200

17,800

16,000

16,300

16,400

17,200

18,000

16,600

17,600

17,800

16,700

16,900

17,000

16,900

16,400

17,800

16,200

15,900

15,900

16,400

18,000

16,900

523,600

16,890

*1,039

Nov.

19,400 

19^200

18,600

17,300

18,300

18,200

*15,600

17 , 800

18,200

18,200

17,600

17,600

16,500

17,600

18,600

16,000

15,900

16,000

15,200

15,600

15,500

16,500

16,700

16,300

16,200

17,600

17,000

17,500

18,600

17,300

-

516,600

17,220

«.,025

Dec.

16,300 

15,800

15,800

14,500

17,400

18,300

18,600

*19,200

18,200

18,200

16,900

17,800

18,700

17,800

17,300

17,600

17,300

16,500

18,400

17,300

17,600

16,800

17,200

17,300

16,700

17,200

17,300

18,100

16,700

18,600

17,800

539,200

17,390

*1,069

Jan.

17 , 100 

16,900

17,000

18,700

16,100

18,400

16,900

15,700

16,600

18,300

16,600

16,900

17,900

19,600

20,300

20,600

21,200

21,000

21,400

21,000

21,000

20,000

19,800

21,000

21,300

*23,300

24,200

23,200

22,400

21,800

21,200

607,400

19,590

«.,205

Feb.

18,000

22*200

22,900

25,800

30,200

35,600

43,500

40,9oO

38,500

37,800

37,800

36,000

32,900

29,800

28,500

26,800

26,400

25,400

25,000

25,200

25,600

25,800

25,300

24,400

23,600

23,900

*23,800

_

_

-

800,800

28,600

tl,588

Mar.

23,800 

22,200

22,600

23,400

24,400

24,800

25,600

25,200

26,200

25,800

26,500

26,000

25,800

26,800

27,500

31,000

31,300

30,500

30,200

32,400

33,400

33,900

34,800

35 , 500,

33,700

33,700

34,600

32,900

33,300

32,900

32,700

903,200

29,140

«,791

Apr.

32,700 

33,900

34,300

35,900

39,000

43,700

44,700

44,100

43,000

42,500

43,600

42,600

43,400

42,600

41,700

39,000

37,800

*37,000

35,800

33,500

30,400

29,500

29,800

28,400

27,700

25,800

25,400

27,400

33,800

34,600

-

«.,083.6

36,120

*2,149

May

34,200 

33,600

35,100

37,000

38,100

36,800

35,800

36,100

36,000

34,600

34,300

37,600

39,300

38,100

39,800

43,500

*44,900

45,200

41,900

38,300

36,300

35,700

35,700

37,500

39,800

38,700

39,100

40,700

41,800

40 , 400

39,500

*1, 185.4

38,240

*2,351

June

39,100

35^400

32,100

31,500

31,800

31,800

30,500

28,900

27,600

25,600

24,200

23,200

22,200

21,800

23,200

24,000

25,300

24,800

23,800

*22,400

21,200

20,600

19,400

20,000

20,800

21,200

18,400

17,600

18, SCO

-

764,600

25,490

«.,517

July

21,000 

18,800

17,100

16,700

17,100

16,200

13,900

15,300

15, 700

12,600

11,500

12,700

12,200

12,500

12,600

*12,900

12,800

11,500

10,900

11,000

11,800

11,200

11,500

11,900

11,500

11,600

11,500

11,500

11,400

11,900

11,400

412,200

13,300

817,600

Aug.

12,200 

11,600

12,200

12,100

12,400

12,700

12,200

12,000

12,600

12,900

12,700

12,000

11,900

11,900

12,000

11,900

11,600

11,400

11,400

*11,400

13,000

13,800

12,900

13,000

12,800

12,800

13,300

13,000

13,000

12,900

12,900

384,500

12,400

762,000

Sept.

12,700 

12,500

12,400

12,100

12,100

11,900

11,800

11,900

11,600

11,900

12,000

12,400

12,300

12,400

12,800

13,200

13,700

13,500

13,400

13,100

12,400

12,600

13,000

13,400

*13,700

13,600

14,000

14,300

14,300

14,500

-

385,500

12,850

764,600

Calendar year 1950: Max 38,400 Mln 9,570 Mean 19,840 Ac -ft 14,360,000

Water year 1950-51: Max 45,200 Min 10,900 Mean 22,210 Ac-ft 16,080,000

* Discharge measurement made on this day. 

t Expressed in thousands.
BURNT RIVER BASIN 193

Unity Reservoir near Unity, Oreg.

Location. Lat 44°30', long. 118°lli, in SWi 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 

of North, Middle, and South Forks of Burnt River, and 4| miles north of Unity.

Drainage area. 309 sq mi.

Records available. March 1938 to September 1951.

Gage. Staff gage above elevation 3,803.3 ft, reference marks for lower readings; gage 

,read once dally. Datum of gage is at mean sea level, datum of Bureau of Reclamation 

(to convert elevations to datum of 1929, add 0.12 ft). Prior to Nov. 4, 1941, reference mark or mercury pressure gage at same site and datum.

Extremes. Maximum contents observed during year, 25,220 acre-ft May 14, 15 (elevation, 

3,820.0 ft); minimum observed, 2,960 acre-ft Sept. 30 (elevation, 3,787,6 ft).

1938-51: Maximum contents observed, 25,770 acre-ft Apr. 13, 1942 (elevation, 

3,820.6 ft'); minimum observed,, 256 acre-ft Oct. 7, 1947 (elevation, 3,778.2 ft).

Remarks.--Reservoir is formed by earth-fill dam with concrete spillway and outlet works, 

completed by Bureau of Reclamation In 1937; storage began Feb. 19, 1938. Capacity, 

25,220 acre-Tt between elevations 3,776.5 ft (bottom of outlet gates) and 3,820.0 ft 

(top of radial gates on spillway when closed). Dead storage, 600 acre-ft below elevation 3,776.5 ft. Records given herein represent usable contents. Water used for Irrigation of lands in Burnt River Irrigation District near Hereford and Bridgeport. Contents computed from capacity table based on surveys by Bureau of Reclamation.

Monthly elevation and contents, water year October 1950 to September 1951

Date

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

rfater year 1950-51. ......

Elevation 

(feet)

3 812 2

3,787.6

-

Contents 

(acre-feet)

2,960

-

Change in contents 

during month 

(acre-feet)

-4,270

-2,670
^* BURNT RIVER BASIN

Burnt River near Hereford, Oreg.

Location. Lat 44°30', long. 118°11', In SE£ sec. 21, T. 12 S., R. 37 E., on left bank 

at entrance to canyon, 1,250 ft downstream from Unity Dam, 0.3 mile upstream from Van 

Cleve ditch, 0.7 mile downstream from South Fork, and 7 miles west of Hereford.

Drainage area,--309 sq mi.

Records available.--March 1915 to September 1916, October 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 3,756.75 ft above mean sea level, datura of 

T929, supplementary adjustment of 1947. Mar. 16, 1915, to Sept. 4, 1916, staff gage 

at site 2 miles downstream at different datum, below Van Cleve ditch and another small 

irrigation ditch. Oct. 22, 1928, to June 28, 1932, water-stage recorder at site half 

a mile downstream from present site at different datum, below Van Cleve ditch. June 

29, 1932, to Sept. 16, 1937, water-stage recorder at site 300 ft upstream from present 

site at different datura. Sept. 17 to Oct. 28, 1937, temporary staff gage at site 300 

ft downstream from present site at different datum. Mar. 5, 1939, to Apr. 15, 1943, 

sharp-crested weir.

Average discharge. 22 years (1929-51), 77.4 cfs.

Extremes.--Maximum discharge during year, 614 cfs Apr. 22 (gage height, 4.56 ft); no flow 

Nov. 7, 8.

1915-16, 1928-51: Maxim discharge, 2,220 cfs Apr. 17, 1943 (caused by opening of 

automatic spillway gates), from rating curve extended above 1,300 cfs by logarithmic 

plotting; maximum gage height, 6.91 ft Apr. 14, 1936, site and datum then in use; no 

flow at times; minimum discharge before construction of Unity Reservoir Dam, 1.6 cfs 

Aug. 31, 1935.

Remarks. Records fair. Many small diversions above station for irrigation; Van Cleve 

ditch with about 3 cfs capacity diverts below gage but above oableway. Flow regulated 

by Unity Reservoir (see preceding page) and partly regulated by reservoir (capacity, 

about 700 acre-ft) on South Fork Burnt River, 3 miles above mouth.

Revisions (water years).--W 903: 1939.

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

69

69

69

69

69

69

69

69

69

69

69

69

52

46

46

46

46

46

46

45

46

46

46

46

46

46

46

46

46

46

46

1,707

55.1

3,390

Nov.

46

45

45

46

46

34

0

0

1

22

*47

43

43

43

43

43

43

43

43

43

43

43

43

43

43

43

43

43

43

43

-

1,149

38.3

2,280

Dec.

43

43

43

43

43

43

44

44

44

45

45

46

46

46

46

*46

46

46

46

46

46

54

52

52

52

52

52

52

52

52

52

1,462

47.2

2,900

Jan.

34

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

27

23

28

28

28

28

28

29

29

29

29

29

29

29

29

866

27.9

1,720

Feb.

29

29

29

29

33

37

37

*37

37

38

38

39

39

40

40

40

41

41

41

41

41

41

41

42

43

43

43

44

_

-

-

1,073

38.3

2,130

Mar.

44

44

44

44

45

46

47

51

41

3J5

33

49

63

61

68

97

130

156

144

142

195

236

225

251

287

329

365

3T7

290

287

287

4,481

145

B,89O

Apr.

287

290

296

302

*308

332

401

 455

510

510

535

535

528

521

563

582

582

574

570

563

560

436

208

208

208

212

163

146

190

185

-

11,760

392

23,330

May

166

158

149

142

137

'132

122

134

160

155

158

164

185

200

208

218

210

205

192

*158

146

144

136

122

118

116

113 124"

130

114

118

4,733

153

9,390

June

124

128 m

120

110

107

*112

105

104

110

109

107

101

98

104

110

105

98

112

113

105

98

100

102

100

97

95

92

90

89

-

3,164

105

6,280

July

86

74

65

69

71

73

70

63

59

62

68

62

68

78

73

80

81

84

98

102

~5ff 107

96

95

90

87

89

91

97

98

95

2,529

81.6

5,020

Aug.

98

104

98

93

98

*95

102

104

104

104

104

105

104

104

104

104

104

102

110

114

114

113

110

107

110

112

109

106

105

104

85

3,230

104

6,410

Sept.

76

75

83

87

86

85

84

84

84

84

84

75

65

65

65

65

64

67

69

68

6867'

66

65

64

68

71

70

68

67

-

2,189

73.0

4,340

Calendar year 1950: Max 383 Win O Mean 91.9 Ac-ft 66,57O

Water year 1950-51: Max 582 Mln 0 Mean 105 Ac-ft 76,080

Discharge measurement made on this day.
POWDER RIVER BASIN 195

Powder River at Salisbury, Oreg.

Location.--Lat 44°39', long. 117°52', in NE£ sec. 36, T. 10 S., R. 39 E., on right bank 

700 ft downstream from Salisbury siding of Sumpter Valley Railroad and Stices Gulch and 

8j miles south of Baker.

Drainage area.--S19 sq mi.

Records available.--December 1903 to August 1914 and October 1928 to September 1951 in 

reports of Geological Survey. January 1904 to July 1914 and June 1926 to September 

1941 in reports of State Engineer.

Gage.--Water-stage recorder and concrete bag-filled control. Datum of gage is 3,638.31 ft 

above mean sea level, datum of 1929, supplementary adjustment of 1947. Dec. 20, 1903, 

to Feb. 29, 1912, staff gage at site 400 ft upstream at different datum. Mar. 1, 1912, 

to Aug. 1, 1914, and June 16, 1926, to Oct. 16, 1933, staff gage at site 0.4 miles downstream from present site at different datums.

Average discharge.--33 years (1904-13, 19S6-28, 1929-51), 110 cfs.

Extremes.--Maximum discharge during year, 822 cfs Apr. 6 (gage height, 4.84 ft); minimum, 

4.5 cfs Sept. 28, 29 (gage height, 1.12 ft).

1903-14, 1926-51: Maximum discharge, 1,820 cfs Mar. 20, 1910 (gage height, 7.05 ft, 

site and datum then in use); no flow Aug. 31, 1909, Sept. 7, 1931.

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

which are poor. Diversions above .station for irrigation.

Revisions (water years).--W 813: 1935. W 1093: Drainage area.

Rating table, water year 1950-51, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet 

(Backwater from debris June 2-16)

econd)

1.1

1.2

1.3

1.5 

1.8 70

2.1 

2.5

3.0 

4.0 

4.8

124

210

328

575

810

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

10

10

11

1111

14

18

16

15

15

15

15

13

12

12

12

12

14

15

17

15

15

14

13

13

13

17

23

27

37

37

492

15.9

976

Nov.

38

43

43

47

47

47

46

45

42

34

*32

32

34

36

34

34

36

40

38

37

34

30

29

30

30

30

31

31

30

34

-

1,094

36.5

2,170

Dec.

34

32

34

32

36

41

47

43

43

50

51

51

52

54

54

*51

52

52

55

58

55

54

54

56

62_

58

55

58

60

61

56

1,551

50.0

3,080

Jan.

48

56

50

52

48

30

b25

b20

b25

b30

b40

b50

55

60

56

41

52

40

b35

b30

b35

b40

b45

52

54

55

b45

b35

b30

bZ5

b20

1,279

41.3

2,540

Feb.

a20

a.22

a25

a30

a35

a45

62

*b80

bllO

152

203

194

169

150

140

128

126

109

109

111

98

89

96

98

92

b85

b80

b70

_

-

-

2,728

97.4

5,410

Mar.

b65

b60

b55

b60

68

70

62

66

67

bSO

b40

b45

48

62

120

136

132

140

157

205

261

282

256

273

314

345

376

369

374

366

333

5,257

170

10,430

Apr.

354

400

480

609

*762

804

777

756

723

684

621

595

627

753

777

678

627

a600

a570

a540

a500

a450

a400

326

302

294

297

374

408

366

-

16,454

548

32,640

May

333

304

275

304

318

342

418

418

438

458

562

666

570

490

428

*402

425

438

420

410

410

418

465

478

460

432

428

412

359

330

294

12,937

417

25,660

June

249

212

203

203

219

198

*187

178

159

148

159

163

165

161

163

161

148

138

128

118

111

105

101

94

85

77

70

64

58

SS

4,281

143

8,490

July

52

48

47

46

47

56

51

45

42

41

38

36

34

32

31

29

27

26

25

*25

21

20

19

18

18

19

21

22

24

21

20

1,001

32.3

1,990

Aug.

19

18

17

16

16

15

14

15

13

»15

15

13

12

11

11

11

9.7

11

9.2

8.6

8.0

8.0

8.0

.1

.5

.5

.1

.5

.6

.5

.5

353.8

11.4

702

Sept.

7.1

7.1

7.1

6.8

6.4

6.4

7.1

7.1

6.4

6.8

6.8

6.8

6.8

6.8

6.0

5.6

6.4

6.4

6.4

*6.0

6.0

5.6

5.6

5.3

5.3

5.3

ill

4.9

5.3

6.4

-

186.9

6.23

371

Calendar year 1950: Max 482 Min 6.8 Mean 113 Ac-i't 81,620

Water year 1350-51: Max 804 Min 4.9 Mean 130 Ac-ft 94,460

Peak discharge (base, 500 cfs). --Apr. 6 (9 a.m.) 822 cfs (4.84 ft); Apr

ft).

, . . 

(4.77 ft); May 12 ( 9 to 11 a.m.) 684 cfs (4.38

* Discharge measurement made on this day.

a No gage-height record; discharge estimated 

Wolf Creek near North Powder.

b Stage-discharge realtion affected by ice.

15 (9 a.m.) 801 cfs

on basis of records Powder River near Haines and
196 POWDER RIVER BASIN

Powder River near Halnes, Oreg.

Location.--Lat 44°56'30", long. 117°56'50", in Sj sec. 21, T. 7 S., R. 39 E., on left bank 

0.1 mile upstream from Muddy Creek, 1 mile downstream from Rock Creek, and 1.7 miles 

north of Haines.

Drainage area.--57S sq mi.

Records available.--October 1946 to September 1951.

Gage. Water-stage recorder. Datum of gage is 3,293.94 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947.

Average discharge.--5 years, 119 cfs.

Extremes. Maximum discharge during year, 761 cfs Apr. 9 (gage height, 5.03 ft); minimum, 

1.5 cfs Aug. 6, 7, 19-23.

1946-51: Maximum discharge, 1,300 cfs June 8, 9, 1948 (gage height, 6.67 ft); minimum, 1.2 cfs Sept. 6, 1950.

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

diversions above station for irrigation; no seasonal regulation.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

Oct. 1 to June 1 June 2 to Sept. 30

0.2 

.3

.6 1.0-

5.6

11

62

1.5 111

2.0 174

3.0 340

5.0 754

).l 0.8

.0 2.3

.1 4.3

.2 7.0

1.0 

1.6

33

58

123

Discharge, in cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Oct.

10

11

12

11

14

18

17

17

17

17

22

20

18

18

17

18

16

20

19

16

15

16

16

15

14

16

18

20

52

44

41

595

19.2

1,180

Nov.

44

58

67

60

60

60

60

60

54

50

*46

52

56

58

55

57

58

62

64

61

60

59

57

57

58

58

57

56

57

59

1,720

57.3

3,410

Dec.

60

56Si70

70

73

85

86

82

80

83

83

82

90

*96

93

90

90

88

86

85

84

86

85

86

88

86

87

92

99

9T

2,573

83.0

5,100

Jan.

76

56- 88

87

80

64

48

42

48

59

64

69

66

68

80

77

74

76

72

62

52

60

68

72

76

76

teo

b50

b45

b40

b35.

2,020

65.2

4,010

Feb.

37

44

47

52

59

61

*77

109

173

215

358

394

299

*248

248

210

196

187

152

153

164

152

140

135

147

113

102

111

_

_

-

4,383

157

8,690

tor.

Ill

113

83

99

107

blOO

103

99

100

89

82

100

108

110

209

313

345

249

232

260

302

317

313

306

322

329

331

336

*354

387

405

6,714

217

13,320

Apr.

390

374

385

416

488

611

687

717

754

745

733

685

614

605

674

722

696

*640

598

574

556

520

462

385

304

253

223

212 2"4T

266

15,530

518

30,800

May

275

263

221

200

191

169

20T

210

210

198

317

456

508

622

600

*512

407

405

381

387

362

340

354

358

363

354

340

317

272

221

173

10,188

329

20,210

June

128

86

43

37

47

57

80

90

84

78

82

89

89

81

106

112

89

90

66

53

*41

45

32

25

27

27

24

19

1212-

1,851

61.7

3,670

July

12

13

13

14

19

27

29

24

23

21

19

18

*18

17

12

9.8

9.1

9.8

9.4

7.4

7.4

7.7

6.7

6.7

6.2

5.9

6.4

5.9

6.2

6.4

6.2

396.2

12.8

786

Aug.

6.7

5.4

5.4

4.3

2.6

2.0

2.0

2.1

2.3

2.1

2.0

2.1

2.3

2.3

2.3

2.1

*2.0

2.0

T7§- 1.8

1.8

1.8

1.8

2.0

2.0

2.1

5~5 9.4

5.0

5.0

5.4

97.5

3.15

193

Sept.

6.2

6.2

7.7

§74

5.9

6.2

5.6

4.8

4.8

5.0

5.6

5.6

5.6

5.6

5.6

5.4

5.4

5.4

5.0

*4.6

4.6

4.8

5.4

5.4

5.0

5.0

5.0

5.6

5.6

5.9

164.9

5.50

327

Calendar year 1950 : Max 554 Min 1.6 Yean 98.6 Ao-ft 71,41O

Water year 195O-51; Max 754 Min 1.8 Yean 127 Ac-ft 91,7OO

Peak discharge (base, 500 efs).--Peb. 11 (10 p.m.) 446 cfs (3.58 ft); Mar. 16 (10 p.m.) 407 cfs 

(3.37 ft); AprT 9 (4 a.m.) 761 cfs (5.03 ft); "- " '" "" " "'" ~ '' ~~~ " ' Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

May 14 (12:30 pirn.) 642'cfs (4.51 ft)."
POWDER RIVER BASIN 

Wolf Creek near North Powder, Oreg.

197

Location. Lat 45°03', long. 118°01', in SE£ sec. 11, T. 6 S., R. 38 E., on left bank 

5 miles northwest of North Powder and 6-| miles upstream from mouth.

Drainage area. 32.9 sq mi.

Records available. September 1946 to September 1951. May 1913 to July 1914 at site 1 

miles upstream, records not equivalent.

Sage . Water-stage recorder. Datum of ge is 3,577.36 ft above mean sea level (Bureau of Reclamation benchmark).

Average discharge. 5 years, 24.3 cfs.

Extremes. Maximum discharge during year, 212 cfs Apr. 14 (gage height, 3.48 ft); minimum, 

0.2 cfs Aug. 5.

1946-51: Maximum discharge, 433 cfs May 23, 1948 (gage height, 4.46 ft); minimum, 

0.2 cfs Sept 12-14, 1948, Aug. 5, 1951.

Remarks. Records good except those for periods of shifting-control or doubtful gage-height 

record, which are fair, and periods of ice effect, which are poor. Many small diversions above station for irrigation of about 1,150 acres.

Rating table, water year 1950-51, except periods of ice effect or shifting 

control (gage height. In feet, and discharge, In cubic feet per second)

1.5

1.6

1.7

1.8

1.8 

3.S

1.9

2.0

2.1 

2.3

2.5 

2.8 

3.2 

3.5

43

82

151

216

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

2.2

2.2

2.3

2.2

2.5

2.5

2.2

STB" 2.0

2.8

2.5

2.5

2.5

2.5

2.5

2.5

2.9

3.5

3.1

2.8

3.3

3.1

2.9

2.9

3.1

3.1

3.7

4.3

5.0

4.1

3.9

90.2

2.91

179

Nov.

4.7

5.9

6.4

6TT

5.2

4.7

4.5

4.7

3.7

*5.5

3.9

4.3

4.1

3.9

3.5

4.5

4.5

5.0

4.3

4.7

4.7

4.7

5.0

4.7

4.7

5.0

5.0

4.7

4.5

5.0

-

139.9

4.66

277

Dec.

4.3

475

4.5

5.0

5.6

4.3

5.4

5.2

5.4

5.9

5.9

5.6

5.2

5.2

*5.0

5.2

5.2

5.2

5.2

5.2

X

5.2

5.2

5.6

5.6

5.2

s'.2

5.0

4.3

5.9

5.9

4.7

160.6

5.18

319

Jan.

b5

b5

5.2

b5.5

b5.5

b6

b5.5

5.2

b5.5

4.7

4.7

4.5

4.5

4.5

b4.5

b4.5

4.3

b4.5

b4.5

b4.5

b4

b4

4.1

4.1

4.3

4.5

b4

b4.5

b4.5

bS

bS

146.1

4.71

290

Feb.

bS

bS

bS

5.0

4.5

b4.5

*b5

bS

b5.5

b6

b6.5

b7

b8

*b9

b9

b9

b9

9.3

b8.5

7.8

6.6

6.9

b7

b7

6.6

b7.5

b7.5

b8

^

_

-

190.7

6.81

378

Mar.

b7.5

5.6

b6. 5

b6. 5

5.9

5.6

5.6

5.2

5.0

b5

bS

4.7

47T

5.6

b7

b9

bll

b!3

b!5

b!7

b20

24

23

26

32

39

43

45

*47

4T

43

534.4

17.2

1,060

Apr.

50

GO

75

96

108

115

118

120

120

115

110

117

149

196

181

166

176

*190

181

145

118

103

94

88

86

91

103

120

129

118

-

3,638

121

7,220

Calendar year 1950: Max 242 Mln 0.9 Mean 24.5

May

107

97

91

94

99

118

157

151

147

147

185

153

151

126

110

*110

110

102

91

81

71

59

56

51

45

40

35

31

d28

d26

d23_

2,922

94.3

5,800

June

d!8

dl 

d!5

dlS

d!6

d!6 die die

d!5

d!3

d!4

d!4

d!2

dll

dll

dlO

dlO

d!2

d!2

dlO

*9.7

6.6

5.6

5.0

5.0

5.0

4.7

4.5

3.9

ITT

-

326.1

10.9

647

July

4.1

3.7

3.1

4.3

4.7

5.6

S7T

4.7

3.9

3.3

3.3

3.7

*3.5

3.3

3.1

2.9

2.8

2.6

2.5

2.3

2.3

2.3

2.2

2.2

2.2

2.0

2.0

1.6

1.5

1.5

1.1

93.7

3.02

186

Aug.

1.2

.9

.4

T5~ .3

.7

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.0

.9

.9

*.8

.8

.8

.7

.8

.9

1.0

.9

.9

.9

.8

.9

1.2

Ood:

1.2

28.7

0.93

57

Sept.

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.1

1.0

1.0

1.1

1.1

1.1

1.1

1.0

1.0

.9 176-

.9

*.9

.9

1.0

1.0

.9

1.0

1.1

1.1

1.1

1.1

1.4

-

31.2

1.04

62

Ac-ft 17,720

Water year 1950-51: Max 196 Mln 0.3 Mean 22.7 Ac-ft 16,480

Peak discharge (base, 200 efs). Apr. 14 (5 a.m.) 212 cfs (3.48 ft); May 11 (11:30 a.m.) 205 cfs 

(3.45 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record because of clogged Inlets; discharge computed on baals of appearance 

of recorder graph, weather records and records for Powder River,near Haines.

Hote. Shifting-control method uaed Oct. 9 to Nov. 9, Dec. 4 to Mar, 16.
198 POWDER RIVER BASIN

Powder River near Robinette, Oreg.

Location (revised) . Lat 44°46'10", long. 117°04'10", in Ej sec. 22, T. 9 S., R. 46 E., on 

left bank 2| miles northwest of Robinette, and 2^ miles upstream from mouth.

Drainage area.--1.660 sq mi (revised), approximately. 

Records available. September 1928 to September 1951.

Sage. Water-stage recorder. Datum of gage is 1,937.01 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. Prior to Aug. 24, 1936, staff gage at site 

half a mile upstream at different datum. Aug. 25, 1936, to Oct. 31, 1948, staff gage 

at present site and datum.

Average discharge.--23 years, 501 cfs.

Extremes.--Maximum discharge during year, 2,450 cfs Apr. 18 (gage height, 3.77 ft); minimum, 58 cfs Jan. 30 (gage height, 0.19 ft).

1928-51: Maximum discharge, 5,320 cfs May 28, 1948 (gage height, 6.6 ft, from 

floodmark); minimum observed., 18 cfs Sept. 2-10, 1931 (corrected).

Remarks..--Records good except those for periods of ice effect, which are fair. Many diversions above station for irrigation; none below. One canal with capacity of about 5 cfs 

diverts around station on left bank. Flow partly regulated by several reservoirs, the 

largest being Thief Valley Reservoir near North Powder (capacity, 17,400 acre-ft).

Rating table, water year 1950-51, except periods of ice effect ( 

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

0.3

.6

1.0

1.5

72

127

240

440

2.0 

2.5 

3.0 

3.8

710

1,080

1,560

2,490

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

178

181

178

170

TS4

227

221

214

208

202

190

187

178

181

184

178

181

230

218

202

196

196

193

193

196

224

224

227

264

568" 292

6,365

205

12,620

Nov.

275

300 259"

300

296

289

286

282

250

218

*221

230

227

227

218

214

208

208

202

196

196

193

193

190 196"

193

193

202

224

230

-

6,946

232

13,780

Dec.

234

247

261

244

208

234

275

342

334

338

338

334

326

346

*445

445

450

45TJ

440

436

426

413

422

390

240

214

208

214

218

221

224

9,917

320

19,670

Jan.

208

221

211

205

202

b!50

123

blSO

b!70

b!90

205

b!90

b!70

202

205

208

199

199

b220

230

278

292

275

286

286

292

268

blSO

b90

b95

blSO

6,320

204

12,540

Feb.

244 306"

364

436

b380

372

*b740

b800

b860

1,020

1,010

850

622

*510

480

584

612

584

530

515

480

470

465

445

440

408

400

377

_

_

-

15,304

547

30,360

Mar.

372

368

334

368

359

350

350

346

350

b300

b300

326

330

350

570

801

794

745

745

780

913

952

885

864

920

968

1,000

960

952

976

944

19,572

631

38,820

Apr.

944

1,030

1,170

*1,340

1,490

1,650

1,770

1,910

2,010

2,060

2,000

2,030

2,120

2,350

2,310

2,240

2,280

2,570

2,320

2,130

1,860

1,630

1,480

1,340

1,160

1,040

1,040

1,260

1,430

1,290

51,054

1,702

101,300

May

1,150

1,030

968

960

956

1,020

1,760

1,600

1,580

1,650

1,990

2,130

2,130

1,940

1,800

1,900

2,000

1,970

1,860

*1,760

1,770

1,880

2,160

2,070

2,010

1,960

2,060

2,070

1,730

1,450

1,190

52,484

1,693

104,100

June

1,000

864

801

710

738

680

650

622

622

656

759

871

878

968

1,190

1,190

1,120

1,060

976

899

815

731

674

650

612

595

595

584

556

525

23,591

786

46,790

July

515

525

500

612

562

515

455

413

390

377

368

334

306

289

278

278

258

227

208

181

154

190

214

181

167

162

137

127

134

125

»125

9,305

300

18,460

Aug.

121

119

114

101

93

92

92

95

101

95

90

88

88

88

88

86

83

83

83

85

92

99

106

116

112

119

123

125

164

173

178

3,292

106

6,530

Sept.

164

156

151

132

123

121

112

104

99

104

102

95

97

102

99

93

97

97

92

*83

80

St>

83

82

83

83

85

88

86

112

3,085

103

6,120

Calendar year 1950: Max 3,000 Min 74 Mean 544 Ac-ft 393,900

Water year 1950-51: Max 2,370 Min 80 Mean 568 Ac-ft 411,100

Peak discharge (base, 1,100 efs). Feb. 10 (7 p.m.) 1,150 cfs (2.58 ft); Apr. 18 (5 a.m.) 2,450 

fs (3.77 ft): Apr. 29 (4 a.m.) 1,48O cfs (2.92 ft); May 23 (2 a.m.) 2,350 cfs (3.69 ft); June 16 

1:30 am ).

. . .. 

(1:30 a.m.) 1,400 cfs (2.84 ft.

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SNAKE RIVER MAIN STEM 199

Snake River at Oxbow, Oreg.

Location. Lat 44°57' , long. 116°51', in NW£ sec. 16, T. VS., R. 48 E., on left bank 

at Oxbow, five-eighths of a mile upstream from intake of diversion tunnel for Oxbow 

powerplant and 2\ miles upstream from Indian Creek.

Drainage area. --72 ,800 sq mi, approximately. 

Records available .--May 1923 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,696.71 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1947. Prior to Dec. 20, 1923, staff gage at 

same site and datum.

Extremes . --Maximum discharge during year, 47,500 cfs May 18; maximum gage height, 16.15 

ft Apr. 8; minimum discharge, 10,600 cfs July 20 (gage height, 8.33 ft).

1923-51: Maximum discharge 74,600 cfs Apr. 21, 1943 (gage height, 20.71 ft); maximum gage height, about 29 ft (ice jam), from floodmark. sometime during period Jan. 

17-27, 1949; minimum discharge, 4,890 cfs Aug. 6, 1924 (gage height, 6.30 ft).

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

fluctuation caused by Swan Palls powerplant. About 2,243,000 acres of land irrigated 

by diversions from river and its tributaries above station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second) 

(Shifting-control method used Jan. 12-30)

9.0 

10.0

11,100

12,800

16,500

12.0

14.0

16.1

25,100

35,500

47,400

Discharge, In cubic feet per second, water year October 1950 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

Total 

Mean 

Ac-ft

Oct.

14,800

16 ',100 

15,000 

18,300

18,500 

*18,500 

17,700 

17,300 

15,800

15,500 

17,700 

16,200 

16,700 

16,800

17,800 

18,000 

16,400 

17,800 

18,100

16,500 

17,200 

17,000 

16,900 

16,500

17,900 

16,300 

15,700 

16,400 

17,000 

18,000

524,100 

16,910 

$1,040

Nov.

17,400 

19,700 

19,300 

18,300 

17,400

18,500 

18,100 

*15.1QO 

18,700 

18,100

18,000 

17,700 

17,700 

16,700 

17,800

18,500 

16,200 

16,400 

16,000 

15,800

15,800 

15,800 

17,100 

17,200 

16,700

16,900 

17,800 

17,700 

18,100 

18,500

523,000 

17,430 

*1,037

Dec.

17,600 

16,700 

16,500 

16,200 

15,300

18 , 300 

19,300 

19,300 

*19.50Q

18,600 

17 , 500 

18,400 

18,700 

18,600

17,900 

18,500 

17,700 

17,500 

18,700

18 , 100 

18,100 

17,400 

17,900 

17,800

17,500 

18 , 000 

17 , 900 

18,400 

17,700 

19,000

557,100 

17,970 

$1,105

Jan.

18,100 

17,700 

17,500 

17,900 

18,900

16,700 

18,300 

17,200 

16,500 

17,600

18,500 

17,400 

18,000 

19,200 

20,500

20,800 

21,400 

21,400 

21,900 

21,700

21,500 

21,200 

20,400 

20,700 

21,600

22,800 

24,400 

23,800 

*23,300 

22,400 

22,000

621,100 

20,040 

$1,232

Feb.

19.000 

19,500 

22,000 

23,000 

25,000

30,000 

35,000 

40,000 

44,000 

40,000

39,000 

38,000 

37,000 

34,000 

31,000

30,000 

28 , 000 

27,000 

27,000 

26,000

26,000 

26,000 

26,000 

26,000 

26,000

25,000 

24,000 

24,000

817,500 

29,200 

$1,621

Mar.

*24,100 

23,600 

22,100 

23,400 

24,000

24,700 

25,400 

25,600 

25,800 

26,000

26,200 

26,400 

26,000 

26,400 

27,400

29,700 

32,700 

31, BOO 

31,000 

32,200

34,000 

34,800 

34,800 

56.200 

35,900

34,600 

35,400 

35,000 

34,000 

34,200 

34,500

917,700 

29,600 

$1,820

Apr.

33,600 

35,000 

35,900 

37,000 

39,300

43,600 

46,600 

46.700 

46,000 

44,800

45,000 

45,200 

45,300 

45,300 

44,800

43,000 

40,600 

40,400 

*38,000 

37,800

34,000 

31,800 

31,600 

31,000 

29,600

28,400 

26,400

31 ! 800 

36,100

$1,141.8 

38,060 

$2,265

May

34,900 

34.600 

34,800 

37,200 

38,800

39,000 

37,600 

37,900 

37,500 

36,800

36,600 

38,000 

40,500 

41,100 

39,500

43,800 

45,700 

*47,100 

45,700 

41,600

38,700 

37,600 

37,300 

38,300 

41,000

41,100 

40,400 

41,600 

42,800 

42,400 

40 , 600

* 1,230.5 

39,690 

$2,441

June

4O.500 

39,200 

37,500 

34 , 400 

32,400

32,300 

32,300 

32,200 

29,700 

28,700

27,500 

25,800 

24,200 

23,800 

22,800

22,900 

24,400 

25,200 

26,100 

24,300

24,200 

*21,900 

21,300 

20,200 

19,500

21,000 

20,500 

20,800 

17,900 

18,100

791,600 

26,390 

$1,570

July.

19,200 

20,40O

16^900 

17,000

17,200 

15,400 

14,300 

15,700 

14,900

12,200 

12,600 

12,800 

12,500 

12,800

12,800 

*13,400 

12,600 

11,700 

11,100

11,600 

12,000 

11,500 

11,900 

12,000

11,800 

11,800 

11,800 

11,700 

11,600 

11,800

423,200 

13,650 

839,400

Aug.

11,700 

12,000 

11,700 

12,100 

12,000

12,300 

12,500 

11,900 

12,500 

12,600

12,700 

12,700 

12,100 

12,000 

12,000

12,200 

11,900 

11,600 

11.500 

*11,500

11,800 

15.600 

13,500 

12,500 

12,900

12,600 

12,900 

13,200 

12,700 

13,000 

12,800

383,000 

12,350 

759,700

Sept.

12,700 

12,600 

12,400 

12,200 

12,000

12,000 

11,800 

11,800

tiffi

11,900 

12,000 

12,300 

12,300 

12,600

12,800 

13,400 

13,600 

13,400 

13,100

13,000 

12,300 

12,900 

13,200 

*13,500

13,700 

13,500 

14,100 

14,200 

14.500

383,000 

12,770 

759,700

Calendar year 1950: Max 39,900 Mln 9,170 Mean 20,350 Ac-ft 14,730,000 

Water year 1950-51: Max 47,100 Mln 11,100 Mean 22,780 Ac-ft 16,490,000

* Discharge measurement made on this day.

* Expressed in thousands.

Note.--No gage-height record Jan. 31 to Feb. 28; discharge computed on basis of records for station at Welser.
200 IMNAHA RIVER BASIN 

Imnaha River above Gumboot Creek, Oreg

Location.--Lat 45°lli, long. 116°53', in sec. 30 or 31, T. 4 S., R. 48 E., on left bank 

at downstream side of bridge, 0.1 mile upstream from Gumboot Creek, and 5 miles northeast of Coverdale forest guard station.

Drainage area.--98 sq mi, approximately.

Records available.--October 1944 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 3,812.67 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947.

Average discharge.--? years, 255 cfs.

Extremes.--Maximum discharge during year, 1,320 cfs May 27 (gage height, 3.67 ft); minimum, 10 cfs Jan. 29 (gage height, 0.18 ft), result of freezeup.

1944-51: Maximum discharge, 2,400 cfs May 27, 1948 (gage height, 5.07 ft); minimum, that of Jan. 29, 1951.

Remarks.--Records good. No regulation or diversion above station.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

0.6 

.8

1.1

Oct. 1 to Jan. 28

38 1.5

62 2.0

104 2.4

Jan. 29 to Sept. 30

180

320

472

0.7

.9

1.2

1.5

130

195

2.0 340

2.5 550

3.0 830

3.5 1,180

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac -ft

Oct.

76

76

75

81

100

95

82

85

85

78

75

75

74

72

7^

71

85

118

89

82

79

*78

75 

74

86

122

114

156

439

301

217

3,386

109

1.11

1.28

6,720

Nov.

190

167

160

162

160

150

144

140

124

124

-124

120

115

114

112

110

114

112

104

104

102

101

100 

101

106

110

112

112

110

122

-

3,726

124

1.27

1.41

7,390

Dec.

120

110

115

112

104

106

102

100

100

112

120

*124

118

122

118

115

114

112

110

106

104

101

101 

100

98

92

96

94

92

95

89_

3,302

107

1.09

1.25

6,550

Jan.

85

92

82

88

85

54

b60

b75

b80

86

81

76

74

75

71

71

70

72

b70

b65

74

71

74 

74

70

66

63

38

b32

b60

b7O

2,204

71.1

0.726

0.84

4,370

Feb.

69

87

104

blOO

*b95

90

102

114

114

132

145

145

132

130

123

114

110

112

95

105

98

93

93 

90

90

b70

bBO

b85

_

.

-

2,917

104

1.06

1.11

5,790

Mar.

b90

84

76

90

87

b70

90

95

85

b75

b80

92

90

82

85

81

76

73

78

87

97

98

97 

100

112

121

128

125

130

130

123

2,927

94.4

0.963

1.11

5,810

Apr.

125

*145

188

250

313

372

396

408

400

396

388

420

480

545

545

545

575

595

570

500

444

404

384 

368

368

412

452

686 662"

545

-

12,881

429

4.38

4.89

25,550

May

476

436

424

440

452

545

911

848

842

918

1,000

884

758

662

625

686

*776

794

788

794

842

953

1,120 

1,070

1,000

1,030

1,120

1,090

890

764

662

24,600

794

8.10

9.33

48,790

June

580

550

545

530

550

510

488

472

49T

575

668

770

8OO

884

1,040

1,060

974

904

860

824

788

746

722 

722

680

662

650

640

615

605

-

20,910

697

7.11

7.94

41,470

July

615

610

615

746

621?

535

500

484

468

452

424

416

424

428

420

412

400

392

376

348

319

298

286

277

*274

259

247

241

232

218

212

12,548

405

4.13

4.76

24,890

Aug.

252" 208

195

188

180

175

168

164

157

153

149

145

141

138

134

130

125

121

119

117

116

116

117 

112

109

105

*104

TIT

136

117

109

4,391

142

1.45

1.67

8,710

Sept.

105

102

98

97

93

92

90

89

87

85

85

84

82

81

79

78

76

75

73

72

72

72

71 

69

69

69

69

68

66

75

-

2,423

80.8

0.824

0.92

4,810

Calendar year 1950: Max 1,610 Mln 22 Mean 256 Cfsm 2.61 In. 35.46 Ac-ft 185,400

Water year 1950-51: Max 1,120 Min 32 Mean 264 Cfsm 2.69 In. 36.51 Ac-ft 190,800

Peak discharge (base, 800 efs).--May 10 (11 p.m.) 1,O20 cfs (3.29 ft); May 27 (ll p.m.) 1,320 cfs 

(3.67 ft); June 15 (10 p.m.) 1,270 cfs (3.61 ft); July 4 (10 a.m.) 967 cfs (3.21 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
IMNAHA RIVER BASIN 201

Imnaha River at Imnaha, Oreg.

Location. Lat 45°34', long. 116°50' (revised), in SW£ sec. 16, T. IN., R. 48 E., on left 

bank at Imnaha and three-eighths of a mile downstream from Sheep Creek.

Drainage area.--640 sq mi (revised), approximately. 

Records available. June 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,941.14 ft above mean sea level, datum of 

T929, supplementary adjustment of 1947. Prior to Aug. 6, 1934, staff gages at site a 

quarter of a mile upstream at different datum.

Average discharge. 23 years, 462 cfs.

Extremes. Maximum discharge during year, 2,140 cfs May 7 (gage height, 4.58 ft); minimum, 

not determined, occurred during period of Ice effect.

1928-51: Maximum discharge, 5,700 cfs May 28, 1948 (gage height, 7.06 ft); minimum 

observed, 16 cfs Nov. 22, 1931.

Remarks.--Records excellent except those for periods of ice effect or no gage-height record, which are fair. Diversions above station for irrigation. Water is diverted above 

station from Sheep Creek and Little Sheep Creek to Grande Ronde River basin for irrigation of about 5,200 acres in Wallcwa Valley.

Revisions (water years).--W 883: 1938.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

1.7 

1.9 

2.1 

2.3 

2.6

100

154

216

292

427

3.0 

3.5 

t.O 

4.5

640

1,010

1,470

2,040

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

140

137

137

140

166

194

160

154

175

169

163

163

160

157

157

157

160

227

203

184

a!80

*172

169

163

166

245

234

284

772

780

542

7,010

226

13,900

Nov.

441

393

356

352

348

330

326

334

288

252

284

272

260

260

245

252

252

272

252

248

248

245

245

248

264

292

326

334

321

326

-

8,866

296

17,590

Dec.

326

292

305

326

292

280

284

276

272

305

366

*413

398

384

370

343

330

321

313

305

292

284

276

272

268

256

248

248

248

252

252

9,397

303

18,640

Jan.

234

241

234

227

227

b!60

b!50

b!80

227

223

227

210

200

203

206

197

200

197

187

148

187

203

181

200

197

197

194

172

b!50

b!25

blOO

5,984

193

11,870

Feb.

*b95

b300

b450

b250

b240

b220

b200

b250

292

384

510

552

505

465

432

393

361

361

317

321

309

288

264

272

264

210

b200

b210

_

-

8,915

318

17,680

Mar.

b220

b210

197

230

227

216

206

213

220

blSO

b!70

213

210

210

230

252

248

234

252

292

374

417

403

393

437

495

520

500

495

495

461

9,390

303

18,620

Apr.

a450

*470

604

815

1,030

1,210

1,240

1,260

1,200

1,150

1,100

1,120

1,270

1,510

1,480

1,420

1,460

1,530

1,500

1,330

1,150

1,010

938

890

858

930

1,030

1,390

1,680

1,390

-

34,415

1,147

68,260

May

1,210

1,060

986

1,020

1,060

1,240

1,960

2,000

1,870

1,870

2,040

2,000

1,750

1,570

1,420

1,450

*1,550

1,540

1,490

1,440

1,450

1,510

1,720

1,700

1,570

1,520

1,620

1,660

1,390

1,220

1,080

46,966

1,515

93,160

June

954

858

843

808

922

843

815

780

773

815

922

1,050

1,090

1,140

1,320

1,590

1,320

1,240

1,150

1,120

1,050

1,000

954

954

914

874

850

836

801

780

-

29,166

972

57,850

July

773

773

759

874

858

724

640

604

574

564

525

505

490

490

485

a480

a470

a460

a450

a410

a380

a350

a340

a335

*334

305

284

272

272

256

245

15,281

493

30,310

Aug.

241

230

223

220

210

203

197

194

184

181

178

172

169

166

160

157

154

148

140

140

140

146

157

148

140

137

*T40

151

203

178

163

5,370

173

10,650

Sept.

157

151

146

140

140

134

132

126

126

126

126

123

121

118

118

116

113

116

110

108

108

108

110

110

113

113

113

110

108

110

-

3,650

122

7,240

Calendar year 1950: Max 2,090 Mln 50 Mean 520 Ac-ft 376,800

Water year 1950-51: Max 2,040 Mln 95 Mean 505 Ac-ft 365,800

Peak discharge (base. 1.300 cfs).--Apr. 19 (3 a.m.) 1,580 cfs (4.11 ft): Apr. 29 (1:30 a.m.) 1,760 

cfs (4.27 ft); May 7 (1:30 p.m.) 2,140 cfs (4.58 ft); June 16 (5 a.m.) 1,550 cfs (4.08 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records 

and records for station above Gumboot Creek.

b Stage-discharge relation affected by ice.
202 SALMON RIVER BASIN 

Salmon River near Obsidian. Idaho

Location. Lat 43°58 I , long. 114°48', in sec. 3, T. 7 N> , R. 14 E. , on left bank threeeighths of a mile below irrigation diversion dam, 1 mile upstream from Lost Creek, and 

85- miles southeast of Obsidian.

Drainage area. 94.7 sq mi.

Records available. November 1940 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,950 ft (by barometer).

Average discharge. 10 years (1941-51), 78.9 cfs.

Extremes. --Maximum discharge during year, 712 cfs May 28 (gage height, 4.13 ft); minimum 

daily, 15 cfs Jan. 29; minimum gage height, 1.47 ft Aug. 19, 20.

1940-51: Maximum discharge, that of May 28, 1951; maximum gage height, 5.50 ft 

probably between Jan. 27 and Mar. 1, 1949 (ice jam); minimum discharge, 2 cfs 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. Diversions for irrigation of about 1,700 acres above station.

Rating tables, water year 1950-51, except periods of ice effect (gage

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

(Shifting-control method used May 28, 29)

Oct. 1 to May 28 May 29 to Sept. 30

1.5 

1.7 

2.0 

2.3 

2.6

81

127

3.0 

3.4 

3.8 

4.2

211

330

495

695

16 2.6 

3.0 

3.4 

4.0

140

239

405

715

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

51

51

52

57

58

61

58

58

56

56

55

54

53

54

58

55

56

55

53

53

53

53

53

53

57

63

66

S3

78

77

69

1,789

57.7

3,550

Nov.

64

64

63

63

62

61

61

63

49

52

*55

55

54

53

48

50

50

49

48

49

49

48

47

47

49

48

47

46

46

47

-

1,587

52.9

3,150

Dec.

46

42

42

46

41

46

45

44

44

44

44

43

40

40

*43

42

40

41

42

42

40

41

43

41

40

40

40

41

43

39

_34

1,299

41.9

2,580

Jan.

38

38

38

38

36

33

32

34

35

35

33

31

33

34

34

33

33

32

30

28

29

30

31

31

29

27

23

20

TB" 15

17

946

30.5

1,880

Feb.

18

15

19

18

19

*18

19

20

22

22

22

20

19

22

23

24

25

25

24

24

25

"?6 26

26

25

24

24

25

_

-

623

22.2

1,240

Mar.

24

24

24

24

24

24

25

26

26

£3

24

26

26

26

26

23

24

25

25

26

26

25

25

*25

26

25

23

23

24

24

23

764

24.6

1,520

Apr.

'ST 24

25

27

29

31

34

37

40

41

42

42

50

61

73

89

110

134

140

*143

136

132

134

134

129

131

141

165

155

140

-

2,593

86.4

5,140

May

131

125

12T

143

169

206

245

251

259

287

327

313

284

257

259

287

337

399

459

437

*428

383

459

490

500

495

562

"60S 663

540

450

10,872

351

21,560

June

387

333

295

279

303

275

246

203

184

174

192

243

295

*387

490

605

600

572

535

515

505

465

392

360

351

351

360

364

356

346

-

10,963

365

21,740

July

346

346

342

346

307

261

250

236

230

230

205

177

*170

174

170

161

148

144

138

133

126

118

95

88

86

81

75

82

94

81

75

5,515

178

10,940

Aug.

70

61

59

65

60

59

91

110

106

102

100

95

94

91

85

45

18

18

17

li

18

36

49

48

45

*44

44

43

46

68

68

1,871

60.4

3,710

Sept.

66

^5

64

64

63

61

60

60

59

59

58

58

57

55

55

54

55

55

54

54

54

54

54

53

54

54

53

52

52

52

-

1,708

56.9

3,390

Calendar year 1950: Max 486 Mln 6.1 Mean 82.5 Ac-ft 59,740

Water year 1950-51: Max 663 Mln 15 Mean 111 Ac-ft 80,400

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 14, 18, 21, 22, 25-28, Jan. 1 to Feb. 21, Feb. 

23, Feb. 25 to about Mar. 20. No gage-height record Feb. 3-5, 10-12, Mar. 7-20, Mar. 25 to Apr. 9; 

discharge estimated on basis of weather records and records for stations on nearby streams.
SALMON RIVER BASIN 203

Alturas Lake Creek near Obsidian, Idaho

Location.--Lat 43°56 I , long. 114°50' ) in SWc sec. 9. T. 7 N., R. 14 E., on right bank 

1 mile downstream from outlet of Perkins Lake, 1^ miles downstream from outlet of 

Alturas Lake, and 4 miles south of Obsidian.

Drainage area. 35.7 sq mi.

Records available.--November 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 7,000 ft (by barometer).

Average discharge.--10 years (1941-51), 74.9 cfs.

Extremes.--Maximum discharge during year, 594 cfs May 29 (gage height, 5.24 ft); minimum recorded, 9.7 cfs Sept. 27 (gage height, 1.92 ft), but may have been less during 

period of ice effect.

1940-51: Maximum discharge, 612 cfs May 31, 1943; maximum gage height, 5.41 ft 

June 9, 1948; minimum discharge recorded, 9.4 cfs Sept. 26, 1949.

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

which are poor. No diversion or regulation above station.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

2.0 

2.2 

2.5 

3.0

55

105

3.5 

4.0 

4.5 

5.3

171

264

387

612

Discharge, In cubic feet per second, water year October 1950 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

total

Mean

Cfsm

In.

Ac-ft

Oct.

26

25

24

24

25

28

27

28

28

28

28

27

28

28

31

30

31

31

31

31

31

31

30

30

31

35

40 

43

51

53

52

986

31.8

0.891

1.03

1,960

Nov.

51

52

50

49

47

45

45

50

47

44

*42

42

41

42

41

41

45

51

50

50

49

45

41

39

38

36

35 

34

33

33

-

1,308

43.6

1.22

1.36

2,590

Dec.

35

35

34

36

36

35

40

38

36

35

34

33

32

31

*31

26

24

23

23

22

22

21

20

19

T9

19

21 

23

21

19

21

864

27.9

0.782

0.90

1,710

Jan.

> 20

> 22

20

640

20.6

0.577

0.67

1,270

Feb.

\> 22

(*)

» 27

> 24

-

-

690

24.6

0.689

0.72

1,370

Mar.

23

*21

21

21

20

19

19

21

21

692

22.3

0.625

0.72

1,370

Apr.

21

20

19

18

19

19

21

23

25

28

32

36

42

50

60

70

80

93

*106

116

122

124

125

123

118

115

113 

119

129

125

-

2,111

70.4

1.97

2.20

4,190

May

118

111

106

104

107

116

137

152

162

177

211

242

240

222

208

201

211

240

276

301

*321

346

395

445

473

475

501 

567

588

540

470

8,763

283

7.93

9.13

17,380

June

400

334

285

249

240

232

217

196

182

174

179

206

260

*326

400

489

543

549

532

503

492

470

421

371

351

344

338

341

341

341

-

10,306

344

9.64

10.74

20,440

July

336

338

338

338

326

294

271

255

242

232

218

197

*184

179

176

171

164

158

152

146

138

128

119

111

105

100

95 

95

106

110

105

5,927

191

5.35

6.17

1,760

Aug.

~92 100

87

85

82

77

73

68

64

60

58

53

50

48

45

43

42

40

39

37

37

39

42

*43

a42

a41

a40 

a39

a 38

a38

036

1,678

54.1

1.52

1.75

3,330

Sept.

a34

a32

30

29

29

28

28

27

26

26

25

24

23

23

23

23

22

21

21

21

19

19

20

23

22

19

if

19

19

-

710

23.7

0.664

0.74

1,410

Calendar year 1950: Max 515 Mln - Mean 85.1 Cfsm 2.38 In. 32.35 Ac-ft 61,590

Water year 1950-51: Max 588 Mln - Mean 95.0 Cfsm 2.66 In. 36. 13 Ac-ft 68,780

* Discharge measurement made on this day.

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

on nearby streams.

Note.--Stage-discharge relation affected by Ice about Dec. 13, 17, 18, 21, 22, 24-28, Dec. 31 to 

Mar. 25, Mar. 28 (no gage-height record Jan. 8 to Feb. 5, Mar. 19-23; discharge estimated as shown 

under "a" above).
204 SALMON RIVER BASIN

Valley Creek at Stanley, Idaho

Location.--Lat 44°13 I , long. 114°56', in sec. 3, T. 10 N., R. 13 E., a quarter of a mile 

upstream from mouth, three-eighths of a mile downstream from upper Stanley, and threequarters of a mile upstream from lower Stanley.

Drainage area. 176 sq mi.

Records available. December 1910 to October 1913, May 1921 to September 1951.

Gage. Water-stage recorder. Datum of gage is 6,221.81 ft above mean sea level, datum 

of 1929. Prior to May 28, 1911, staff gage at site a quarter of a mile upstream and 

May 28, 1911, to Oct. 31, 1913, at site three-quarters of a mile upstream, at different datum. May 2, 1921, to Apr. 30, 1949, staff gage at present site and datum.

Average discharge.--31 years (1911-13, 1922-51), 190 cfs.

Extremes. Maximum discharge during year, 1,340 cfs May 28 (gage height, 3.41 ft); minimum daily, 80 efs Jan. 30,31; minimum gage height, 0.96 ft Mar. 28.

1910-13, 1921-51; Maximum discharge observed, 1,850 cfs May 29, 1921 (gage height, 

4.4 ft), from rating curve extended above 1,300 cfs; minimum, 40 cfs (estimated) Nov. 

17-30, 1929, Dec. 8-13, 1932.

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

which are fair. Diversions for irrigation of about 590 acres above station.

Rating tables, water year 1950-51, except period of ice effect (gage 

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

Oct. 1 to Mar. 31

1.0 79

1.2 114

1.5 191

1.9 341

Apr. 1 to Sept. 30

1.1 

1.3 

1.6 

2.0

136

224

386

2.5 648

3.0 990

3.4 1,330

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

141

132

129

127 m

162

152

152

149

139

134

132

129

132

179

149

146 

165

152

144

136

132

129

127

134

176

221

214

312

295

228

4,983

161

0.915

1.05

9,880

Nov.

201

T58

179

176

165

165

165

185

129

146

146

*141

136

139

127

127

132

136

136

157

179

165

159

146

144

136

127

127

118

136

-

4,523

151

0.858

0.96

8,970

Dec.

121

116

134

139 Tie

125

134

136

136

134

134

*132

114

114

129

127

118 

116

121

121

112

110

118

114

108

108

108

112

118

110

15

3,736

121

0.688

0.79

7,410

Jan.

108

114

112

110

103

92

89

103

110

110

104

95

103

110

112

112

111 

114

118

aTl5

allO

allO

allS

alia

alls

alls

allO

alOO

a90

a80

a 80

3,291

106

0.602

0.70

6,530

Feb.

a90

*b!05

bllO

118

118

127

149

149

152

157

152

162

Is?

alSO

a!40

a!30 

a!30

a!20

a!20

al25

a!25

a!25

a!20

a!20

allS

allS

allS

_

-

3,586

128

0.727

0.76

7,110

Calendar year 1950: Max 1,030 Hin 72

Har.

allO

aTT0

alOS

alOS

alOO

a95

a 95

alOO

alOO

a95

a 95

*101

101

101

104

104

104 

101

101

101

99

93

99

101

103

103

95

92 "§5

95

93

3,096

99.9

0.568

0.65

6,140

Apr.

101

103

112

123

136

152

168

194

224

238

246

264

303

368

400

424

458 

514

*574

568

483

448

473

463

438

530

590

723

488

10,942

365

2.07

2.31

21,700

Hay

428

414

448

540

562

613

803

730

742

782

866

796

723

636

607

631

667 

723

762

*768

817

859

938

998

1,010

990

1,090

1.290

1,150

1,010

894

24,287

783

4.45

5.13

48,170

June

768

673

607

574

660

673

631

540

483

468

473

568

660

698

*803

968

1.040 

1,010

952

901

859

831

749

685

667

654

642

632

625

619

-

21,113

704

4.00

4.46

41,880

July

607

'607 613

613

607

552

504

488

478

488

478

419

*400

405

414

405

395 

386

382

372

346

324

299

291

295

283

280

316

364

312

283

13,006

420

2.39

2.75

25,800

Aug.

299

291

299

268

253

242

221

211

201

191

182

174

171

165

149

141 

T41

141

149

174

176

208

*228

191

171

157

154

154

165

157

6,096

197

1.12

1.29

12,090

Sept.

152

T44

139

136

134

129

132

127

125

125

121

121

121

118

116

114

110 

112

110

108

110

112

112

110

127

146

125

118

116

116

-

3,686

123

0.699

0.78

7,310

Mean 253 Cfsm 1.44 In. 19.48 Ac-ft 182,900

Water year 1950-51: Hax 1,290 Min 80 Mean 280 Cfsm 1.59 In. 21.63 Ac-ft 203,000

Peak discharge (base, 600 cfs). --Apr. 19 (6:30 p.m.) 736 cfs (2.64 ft); Apr. 28 (9 p.m.) 859 cfs

(2.82 ft); Hay 11 (12 p.m.) 908 cfs (2.89 ft); Hay 28 (10:30 a.m.) 1,340 cfs (3.41 ft); June 17

(12 m. to 3 p.m.) 1,050 cfs (3.08 ft)

* Discharge measurement made on this day.

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

on nearby streams.
SALMON RIVER BASIN 205

Salmon River below Valley Creek, at Stanley, Idaho

Location. Lat 44°14', long. 114°55', in SE^SEi sec. 34, T. 11 N., R. 13 E., on left bank 

three-quarters of a mile downstream from Valley Creek and l£ miles northeast of upper

Stanley.

Drainage area.--53S sq mi.

Records available. July 1925 to September 1951.

Gage.--tfater-stage recorder. Datum of gage is 6,190.32 ft above mean sea level, datum of 

1929. Prior to Oct. 13, 1925, staff gage at same site and datum.

Average discharge.--26 years, 633 cfs.

Extremes.--Maximum discharge during year, 4,090 cfs May 28 (gage height, 3.91 ft); minimum daily, 300 cfs Jan. 30, 31; minimum gage height recorded, 0.97 ft Jan. 30.

1925-51: Maximum discharge, 5,020 cfs June 27, 1927 (gage height, 4.41 ft), from 

rating curve extended above 4,000 cfs; minimum, 100 cfs (estimated) Nov. 20-30, 1929.

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

which are fair. Diversions for -irrigation of about 6,000 acres above station.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

0.9

1.1 

1.5 

2.0

296

404

722

1,200

2.5 

3.0 

3.5 

4.0

1,750

2,420

3,300

4,300

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

13

20

21

22

23

24

25

26

27

28

23

30

31

Total

Mean

Cfsm

In.

Ac -ft

Oct.

558

542

534

527 

558

617

600

600

584

558

558

550

542

550

634

575

584

609

584

575

558

550

542

534

575

678

743

731

"506" 935

735

18,332

613

1.15

1.32

37,670

Nov.

722

731

687

660 

634

626

626

678

550

511

*575

567

558

567

519

503

527

584

575

609

652

600

584

558

558

534

513

511

495

542

-

17,562

585

1.03

1.22

34,830

Dec.

519 49"5

511

558 

555

495

542

550

542

534

534

527

*458

438

495

480

458

458

472

465

438

332

452

438

411

375

363

387

418

411

332

14,511

468

0.875

1.01

28,780

Jan.

369

387

392

404 

404

363

369

381

404

392

404

392

404

424

4T5

404

363

375

398

398

387

381

387

411

424

' 418

392

375

336

b300

bSOO"

11,956

386

0.721

0.83

23,710

Feb.

320

*b355

b380

431 

452

b450

495

519

5TT

511

519

503

458

458

465

458

431

438

411

431

418

404

418

418

411

387

338

387

_

_

-

12,237

437

0.817

0.85

24,270

Mar.

390" 369

375

390 

370

370

370

380

400

390

*b390

400

410

400

410

415

b400

b380

b390

431

438

438

398

398

404

420

420

400

410

440

140

12,436

401

0.750

0.86

24,670

Apr.

440

445

450

470 

530

600

670

720

750

731

740

777

832

983

1,050

1,120

1,220

1,330

*1,430

1,430

1,370

1,320

1,370

1,370

1,300

1,410

1,500

1,730

1,650

1,440

-

31,173

1,039

1.94

2.17

61,830

May

1,320

1,280

1,320

1,450 

1,510

1,620

1,950

1,860

1,900

1,970

2,170

2,190

2,060

1,870

1,770

1,800

1,920

2,100

2,240

*2,320

2,380

2,560

2,860

3,070

3,130

3,090

3,410

3,330

3,870

3,510

3,040

71,530

2,307

4.31

4.97

141,900

June

2,610

2,280

2,030

1,900 

1,990

1,960

1,860

1,650

1,520

1,460

1,520

1,700

1,960

*2,170

2,600

3,090

3,380

5,410

3,260

3,110

3,020

2,930

2,660

2,450

2,340

2,300

2,260

2,260

2,270

2,260

-

70,210

2,340

4.37

4.88

139,300

July

2,240

2,260

2,260

2,500 

2,260

2,100

2,000

1,940

1,870

1,900

1,850

1,680

*1,580

1,550

1,560

1,540

1,520

1,490

1,480

1,460

1,400

1,320

1,230

1,170

1,150

1,100

1,080

1,140

1,310

1,230

1,180

50,150

1,618

3.02

3.49

99,470

Aug.

1,160

1,090

1,110

1,180 

1,100

1,060

1,030

1,010

964

916

878

841

804

777

749

696

626

609

600

105

660

660

758

*804

722

678

634

626

617

634

617

25,219

814

1.52

1.75

50,020

Sept.

600

584

575

575 

567

558

550

534

527

527

519

511

503

495

488

488

480

480

472

465

458

465

472

465

495

527

495

488

488

488

-

15,539

511

0.955

1.07

30,420

Calendar year 1350: Max 3,340 Mln 250 Mean 832 Cfsm 1.56 In. 21.10 Ac-ft 601,900

Water year 1350-51: Max 3,330 Min 300 Mean 963 Cfsm 1.80 In. 24.42 Ac-ft 696,900

Peak discharge (base, 1,700 cfs). Apr. 28 (3 p.m.) 1.920 cfs (2.64 ft); May 12 (12:50 a.m.) 

2,330 cfs (2.92 ft); May 28 (3 p.m.) 4,090 cfs (3.91 ft); June 18 (l p.m.) 3,450 cfs (5.64 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Feb. 1, Mar. 2-10, 12-16, Mar. 26 to Apr. 3; 

basis of weather records and records for other Salmon River stations.

discharge estimated on
206 SALMON RIVER BASIN

Salmon River below Yankee Fork, near Clayton, Idaho

Location. Lat 44°16', long. 114°44', in sec. 20, T. 11 N., R. 15 E., on left bank a quarter of a mile downstream from Sunbeam Dam and Yankee Fork and 18 miles upstream from 

Clayton.

Drainage area. 841 sq mi.

Records available. October 1921 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 5,900 ft (by barometer). Prior to Oct. 

3, 1926, staff gage at site 200 ft downstream at datum approximately 1.5 ft higher. 

Oct. 3, 1926, to Sept. 2,-1927, staff gage and Sept. 3, 1927, to Nov. 5, 1934, waterstage recorder, at site 200 ft downstream at approximately present datum.

Average discharge.--28 years (1922-24, 1925-51), 924 cfs.

Extremes. Maximum discharge during year, 7,140 cfs May 28 (gage height, 9.45 ft); minimum daily, 360 cfs Jan. 30, 31; minimum gage height, 2.26 ft Dec. 27.

1921-51: Maximum discharge, 8,000 cfs (estimated) June 27, 1927; minimum, 160 cfs 

(estimated Nov. 25-30, 1929.

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

which are fair. Diversions for irrigation of about 6,000 acres above Stanley.

Rating table, water year 1950-51, except period of ice effect (gage

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

(Shifting-control method used May 17 to July 23)

2.2 

2.5

3.0 

3.5 

4.0

349

491

754

1,040

1,380

5.0 

6.0 

7.0 

8.0 

9.3

2,160

3,030

4,070

5,280

7,100

Discharge, in cubic feet per second, water year October 195O 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

total

Mean

Cfsm

In.

Ac-ft

Oct.

684

663

658

'574 652 

754

727

749

732

705

695

679

668

668

776

716

711

738

716

700

684

674

663

658

700

798

888

876

1,110

1,160

1,010

23,286

751

0.893

1.03

46,190

Nov.

899

894

848

826 

831

820

815

865

695

*636

749

749

716

727

668

668

700

743

727

754

798

754

722

689

695

679

652

642

620

684

-

22,265

742

0.882

0.98

44,160

Dec.

652

594

599

674 

568

568

663

652

636

626

610

615

*516

457

594

610

568

558

578

578

522

447

578

563

506

437

418

47T

547

547

516

17,468

563

0.669

0.77

34,650

Jan.

462

496

496

527 

511

437

437

457

511

506

537

511

516

522

527

511

471

442

486

496

516

486

501

532

542

542

516

b470

b400

b360

b360

15,084

487

0.579

O.67

29,920

Feb.

b410 *b4~50~

511

a560 

a580

a580

a'eTo" a610

584

563

573

599

547

537

542

552

516

537

496

527

516

491

501

506

506

466

486

481

-

_

-

14,847

530

0.630

0.66

29,450

Mar.

457

476

462

471 

452

457

462

481

491

*471

462

476

491

481

496

501

471

462

476

481

491

491

462

476

491

506

506

481

511

522

522

14,936

482

0.573

0.66

29,630

Apr.

522

537

589

663

782

905

1,030

1,140

1,230

1,290

1,260

1,360

1,610

1,940

2,040

2,060

2,210

*2,420

2,510

2,470

2,260

2,080

2,100

2,060

1,930

2,010

2,170

2,480

2,490

2,130

50.278

1,676

1.99

2.22

99,720

May

1,900

1,780

1,780

2,OOO 

2,260

2,720

3,420

3,400

3,440

3,700

4,100

3,990

3,560

3,110

2,860

2,930

3,350

3,920

4,270

*4,400

4,510

4,840

5,500

5,910

5,780

5,670

6,260

7.060

6,700

5,890

5,050

126,060

4,066

4.83

5.57

250,000

June

4,360

3,770

3,330

3,070 

3,160

3,110

2,940

2,650

2,450

2,410

2,640

3,070

3,570

4,060

*4,840

5,740

6,090

5,850

5,490

5,220

4,980

4,720

4,240

3,900

3,750

3,640

3,550

3,530

3,500

3,440

117,070

3,902

4.64

5.18

232,200

July

5,400

3,390

3,360

3,390 

3,280

3,C30

2,850

2,730

2,620

2,600

2,510

2,270

2,150

*2,110

2,100

2,050

1,990

1,950

1,920

1,890

1,810

1,710

1,590

1,500

1,460

1,400

1,570

1,420

1,630

1,510

1,440

68,430

2,207

2.62

3.03

135,700

Aug.

1,420

1,330

1,340

1.440 

1,326

1,290

1,250

1,200

1,150

1,090

1,030

992

957

916

894

848

782

760

749

755

843

826

*939

992

894

837

804

787

770

782

770

30,762

992

1.18

1.36

61,020

Sept.

754

73?

722

711 

705

695

679

663

652

647

636

631

626

615

605

605

594

599

589

584

578

W

584

578

610

652

610

599

594

599

19,032

634

0.754

0.84

37,750

Calendar year 1950: Max 5,730 Min 330 Mean 1,242 Cfsm 1.48 In. 2O.04 Ac-ft 899,600

Water year 1950-51: Max 7,060 Min 360 Mean 1,423 Cfsm 1.69 In. 22.97 Ac-ft 1,O30,OOO

Peak discharge (base, 2,550 cfs).--Apr. 28 (11 p.m.) 2,790 cfs (5.71 ft); May 12 (12:30 a.m.) 

4,220 cfs (7.19 ft); May 28 (5:30 p.m.) 7,140 cfs (9.45 ft); June 17 (2 a.m.) 6,150 cfs (8.76 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for other 

Salmon River stations.

b Stage-discharge relation affected by ice.
SALMON RIVER BASIN 207

Salmon River near Challls, Idaho

Location. Lat 44°23>, long. 114°15', in sec. 7, T. 12 N., R. 19 E., on left tank 250 ft 

downstream from Bayhorse Creek and 9 miles south of Challis.

Drainage area. 1,800 sq mi, approximately. 

Records available. October 1928 to September 1951.

e. Water-stage recorder. Datum of gage is 5,163.99 ft above mean sea level, datum of 

"929.

Average discharge. 23 years, 1,374 cfs.

Extremes.--Maximum discharge during year, 10,600 cfs May 28 (gage height, 8.74 ft); minimum, 228 cfs Jan. 30 (gage height, 1.18 ft).

1928-51: Maximum discharge, that of May 28, 1951; minimum, 160 cfs Dec. 14, 1940.

Remarks. Records excellent. Diversions for irrigation of about 10,000 acres above staRevisions. W 1043: Drainage area.

Rating table, water year 1950-51 (gage height in feet, and 

discharge, in cubic feet per second)

Oct. 1 to Nov. 9 Nov. 10 to Sept. 30

2.7 

3.0 

3.2 

4.0

938

1,140

1,280

2,030

1.6 

2.0 

2.5 

3.0 

3.5

378

555

820

1,140

1,540

4.O 

5.O

6.0 

7.0 

8.7

2,030

3,300

4,930

6,870

10,500

Discharge, in cubic feet per second, water year October 1950 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

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

1,020 

988

981

981 

981

1,080

1,060

1,090

1,070

1,050

1,030

1,010

1,000

994

1,140

1,110

1,080

1,090

1,060

1,040

1,020

1,010

994

969

1,0(30

1,100

1,220

1,210

1,370

1,530

1,410

33,688

1,087

0.604

0.70

66,820

Nov.

1,260 

1,250

,200

,160 

,150

,130

,110

1,160

1,020

*B61

1,030

1,050

1,010

1,010

938

950

981

1,050

1,030

1,020

1,110

1,060

1,030

981

994

969

957

938

914

957

-

31,280

1,043

0.579

0.65

62,040

Dec.

963 

884

866

963 

902

814

'565 981

938

932

908

908

832

742

872

*920

861

843

861

861

809

699

837

866

798

726

668

748

849

849

803

26,466

854

0.474

0.55

52,490

Jan.

699 

753

809

798 

770

652

610

652

742

721

759

737

759

832

832

792

764

*694

673

689

748

798

748

803

792

781

759

694

575

390

415

22,240

717

0.398

0.46

44,110

Feb.

512 

636

748

814 

832

809

908

1,060

1,060

1,100

1,070

944

820

748

798

809

737

792

737

753

759

721

710

737

721

673

684

684

_

-

22,376

799

0.444

0.46

44,380

Mar.

631 

668

662

662 

684

631

684

668

694

*641

631

678

726

705

748

781

684

657

715

764

832

775

673

705

775

826

781

710

748

770

786

22,095

713

0.396

0.46

43,820

Apr.

803 

OT3

914

1,020 

1,160

1,320

1,480

1,640

1,710

1,830

1,780

1,850

2,110

2,540

2,770

2,780

2,890

*3,160

3,310

5,370

3,130

2,860

2,850

2,810

2,640

2,670

2,840

3,100

3,330

3,000

-

68,510

2,284

1.27

1.42

135,900

May

2,720 

2,510

2.440

2,610 

2,960

3,500

4,370

4,680

4,690

4,900

5,460

5,580

5,110

4,500

4,100

4,110

4,620

5,520

6,170

*6,370

6,530

7,030

7,980

8,640

8,550

8,360

9,100

10,400

9,830

8,660

7,580

179,580

5,793

3.22

3.71

356,200

June

6,570 

5,710

5,090

4,680 

4,660

4,560

4,390

4,010

3,730

5.640

3,880

4,420

5,220

5,970

*7,110

8,610

9,010

8,740

8,280

7,860

7,560

7,210

6,510

5,970

5,730

5,630

5,500

5,480

5,460

5,370

-

176,560

5,885

5.27

5.65

550,200

July

5,550 

5,550

5,310

5,400 

5,240

4,810

4,560

4,400

4,250

4,230

4,160

5,720

5,500

*3,480

3,520

3,430

3,380

3,270

3,270

3,240

3,070

2,890

2,730

2,600

2,550

2,460

2,560

2,470

3,120

2,720

2,580

115,420

5,659

2.05

2.34

225,000

Aug.

2,440 

2,330

2,260

2,580 

2,360

2,220

2,130

2,030

1,940

1,860

1,760

1,680

1,620

1,580

1,530

1,470

1,580

1,330

1,300

1,300

1,430

1,430

*1,510

1,650

1,530

1,420

1,360

1,320

1,290

1,280

1.260

52,580

1,696

0.942

1.09

104,300

Sept.

1,230 

1,200

1,180

1,160 

1,140

1,130

1,100

1,080

1,060

1,050

1,030

1,040

1,030

1,020

994

988

975

975

965

957

963

969

969

963

963

1,050

1,010

981

969

963

-

31,102

1,037

0.576

0.64

61,690

Calendar year 1950; Max 7,740 Min 460 Mean 1,725 Cfsm 0.958 In. 13.01 Ac-ft 1,248,000

Water year 1950-51; Max 10,400 Min 390 Mean 2,137 Cfsm 1.19 In. 16.13 Ac-ft 1,547,000

Discharge measurement made on this day.
208 SALMON RIVER BASIN

Challis Creek near Challis, Idaho

Location Lat 44°34', long. 114°19' , in sec. 2, T. 14 N., R. 18 E., 0.1 mile downstream 

from Eddy Creek, 6 miles northwest of Challis, and 6§ miles upstream from mouth.

Drainage area. 85 sq mi, approximately.

Records available. October 1943 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 5,370 ft (by barometer). Prior to Sept. 

27, 1944, staff gage and Sept. 27, 1944, to Nov. 10, 1948, water-stage recorder, at 

site 350 ft downstream at present datum.

Average discharge. 8 years, 44.6 cfs.

Extremes.--Maximum discharge during year, 345 cfs May 28, 29; maximum gage height, 6.26 ft 

May 25; minimum daily discharge, 11 cfs Jan. 29; minimum gage height, 3.51 ft Sept. 9. 

1943-51: Maximum discharge, 418 cfs June 4, 1948 (gage height, 2.30 ft, site then 

in use); minimum, 5.7 cfs Mar. 11, 29, 1950, but may have been less in January 1950 

during period of ice effect.

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

which are poor. Diversions above station for irrigation.

Rating tables, water year 1950-51, except periods of ice effect (gage height,

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

(Shifting-control method used Mar. 7-9, May 23 to June 2)

Oct. 1 to May 28

3.6

3.7

3.8 

4.0 

4.5

8.8

12

18

5.0 

5.5 

6.0 

6.5

121

190

265

345

3.5 

3.7 

4.0 

4.5

May 29 to Sept. 30)

22 5.0

36 5.5

65 6.0

189

262

340

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Gale

Oct.

38

37

37

36

36

35

29

26

27

26

26

26

25

25

28

26

25

25

25

25

25

25

25

25

25

25

26

27

29

29

27

873

28.2

1,730

Nov.

25

25

25

24

24

24

24

24

*16

16

20

22

21

21

21

20

20

21

20

20

20

20

20

19

17

17

17

16

16

17

612

20.4

1,210

Dec.

16

15

17

19

17

18

19

18

18

18

18

18

17

16

20.

*19

19

18

18

17

16

16

17

17

16

15

14

15

16

16

16

529

17.1

1,050

Jan.

15

15

16

16

15

13

13

14

17

T6

16

16

16

16

16

16

*16

15

15

16

16

16

16

16

16

16

16

14

11

l5

14

472

15.2

936

Feb.

14

TS

15

15

15

14

17

20

20

20

20

19

18

16

18

18

18

17

17

17

17

17

17

17

17

16

16

16

_

-

479

17.1

950

Mar.

16

15

15

15

15

14

"14

14

14

13.

13

14

15

15

15

15

15

14

15

15

16

17

18

18

19

20

23 22"

21

22

22

509

16.4

1,010

Apr.

25

27

30

32

35

36

39

39

41

39

39

42

47

55

*59

59

61

66

6§

65

62

57

56

56

54

53

54

56

61

59

1,470

49.0

2,920

May

57

55

52

51

57

73

98

134

155

158

172

175

175

167

161

161

166

178

*205

226

240

247

287

310

321

311

315

337

537

311

283

5,972

193

11,850

June

259

252

232

217

210

202

192

178

171

165

165

176

189

199

223

*262

277

278

27?

262

250

241

226

209

199

190

179

174

169

159

6,377

213

12,650

July

133

131

139

144

13T

131

127

122

118

118

112

106

100

*97

95

92

89

85

84

82

77

74

72

69

67

64

66

67

59

57

51

2,974

95.9

5,900

Aug.

66

63

63

67

6l

65

61

61

66

65

63

61

61

59

56

54

52

50

48

*50

48

50

50

48

46

44

43

43

42

40

40

1,689

54.5

3,350

Sept.

39

58

37

36

36

36

33

25

25

31

32

32

32

32

32

31

31

31

30

30

31

30

29

30

29

29

29

27

27

26

-

936

31.2

1,860

idar year 195O: Max 241 Mln - Mean 45.3 Ac-ft 32,810

Water year 195O-51: Max 337 Mln 11 Mean 62.7 Ac-ft 45,420

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 2, 3, 5, 6, 8-11, 13-15, 21-24, 26-29, Dec. 

31 to Jan. 3, Jan. 5-21, Jan. 28 to Mar. 6, Mar. 10-30 (no gage-height record Feb. 4 to Mar. 6, 

Mar. 12-29; discharge estimated on basis of weather records and records for stations on nearby 

streams).
SALMON RIVER BASIN 209

Pahslmerol River near May, Idaho

Location.-Lat 44-42', long. 114-03', in w| sec. 25, T. 16 N., R. 20 E, on right bank

 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.

Drainage area. 845 sq mi, approximately.

Records available. October 1929 to September 1951.

Gage. Staff gage read once dally. Datum of gage is 4,636.95 ft above mean sea level, ad-

 ;fustment of 1912.

Average discharge . 21 years (1930-51), 206 cfs.

Extremes.--Maximum discharge observed during year, 333 cfs Nov. 20 (gage height, 2.55 ft);

 maximum gage height observed, 2.79 ft May 29 (backwater from Salmon River); minimum 

discharge observed, 104 cfs May 10 (gage height, 1.73 ft).

1929-51: Maximum discharge observed, 454 cfs May 30, 1943 (gage height, 3.81 itj, 

maximum gage height observed, 3.21 ft June 4, 1948 {backwater from Salmon River); minimum discharge observed, 75 cfs Apr. 28, 1934.

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

 oFTackwater from Salmon River, which are fair. Diversions for irrigation of about 

12,500 acres above station.

Rating table, water year 1950-51, except periods of Ice effect or 

backwater from Salmon River (gage height, In feet, and 

discharge, In cubic feet per second)

1.7

1.8 

2.0 

2.3 

2.6

93

109

150

240

352

Discharge, In cubic feet per second, water year October 1950 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

25

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

269

291

291

295

295

295

299

305

306

510

306

306

310

310

303

303

295

284

280

280

275

280

287

287

287

284

284

284

287

287

284

9,061

292

17,970

Nov.

280

276

272

269

2^9

275

276

275

*284

284

287

a290

3292

295

303

329

314

310

325

555

329

529

525

525

525

525

525

325

325

325

-

9,098

303

18,050

Dec.

325

522

322

318

314

314

305

310

310

314

314

310

306

306

305

295

*284

280

280

275

269

259

265

262

269

265

265

262

262

258" 258

9,013

291

17,880

Jan.

258

254

258

258

251

244

f47

251

251

247

244

247

251

258

*247

254

258

258

254

251

251

251

251

254

254

251

254

b250

b245

b245

247

7,794

251

15,460

Feb.

251

251

254

251

251

247

258

262

258

254

295

769

262

258

254

247

244

25T

251

247

244

247

251

247

254

258

262

258

-

_

-

7,136

255

14,150

Mar.

262

262

269

265

262

258

*258

262

265

262

251

2"6~2 247

269

276

272

269

269

272

280

276

272

265

265

265

265

262

254

251

262

258

8,187

264

16,240

Apr.

251

265

272

269

272

276

Tf?

265

262

247

247

240

233

233

230

*214

217

217

210

210

207

201

198

198

201

204

192

182

173

168

6,826

228

13,540

May

160

ISS

141

130

117

122

120

113

107

104

106

109

130

126

120

115

113

111

*113

111

117

120

c!25

c!30

cl35

c!40

c!40

c!45

clSO

c!55

cl60

3,938

127

7,810

June

c!55

158

155

150

IBS

155

158

153

155

160

163

168

163

168

176

*c!80

cT56"

clSO

179

176

173

173

171

a!68

166

168

166

163

158

158

4,949

165

9,820

July

153

155

153

153

155

158

158

163

163

166

166

166

168

*155

158

160

158

153

150

150

143

147

146

150

153

153

150

171

173

173

176

4,892

158

9,700

Aug.

179

188

195

201

204

210

207

207

201

201

201

198

192

185

179

173

173

ITS' 171

185

*185

185

201

198

201

204

204

204

201

210

217

6,036

195

11,970

Sept.

220

224

227

224

217

214

207

198

188

188

192

192

192

192

192

192

188

T§2

192

188

188

188

188

192

195

201

207

210

217

217

-

6,022

201

11,940

Calendar year 1950: Max 333 Min 98 Mean 224 Ac-ft 162 ,.400

Water year 1950-51: Max 333 Min 104 Mean 227 Ac-ft 164,500

* Discharge measurement made on this day.

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

n nearby streams.

b Stage-discharge relation affected by Ice. 

c Backwater from Salmon River.
210 SALMON RIVER BASIN

Salmon River at Salmon, Idaho

Location. Lat 45°11'00", long. 113°53'40", in NE^- sec. 6, T. 21 N., R. 22 E. , on left 

bank 1,000 ft downstream from island, 0.4 mile upstream from Lemhi River, and 0.5 mile 

(revised) downstream from highway bridge at Salmon.

Drainage area. 3,760 sq mi.

Records available.--April 1912 to September 1916, July 1919 to September 1951.

Gage. Water-stage recorder. Datum of gage is 3,911.14 ft above mean sea level, datum 

of 1989 (levels by Corps of Engineers). Apr. 25, 1912, to Sept. 30,1916, July 6, 1919, 

to Oct. 21, 1929, staff gage at site 700 ft upstream at different datum.

Average discharge . 34 years (1913-16, 1920-51), 1,850 cfs.

Extremes. Maximum discharge during year, 11,400 efs May 29 (gage height, 7.38 ft); mini- 

 mum daily, 580 cfs Jan. 31; minimum gage height, 2.34 ft, probably Jan. 31 (backwater

from ice).

1912-16, 1919-51: Maximum'discharge observed, 16,400 cfs June 12, 1921 (gage

height, 9.35 ft, site and datum then in use); minimum, 242 cfs Jan. 8, 1937 (gage

height, 1.50 ft).

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

record, which are fair. Diversions above station for irrigation.

Revisions. W 1043: Drainage area.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

Oct. 1 to May 31 June 1 to Sept. 30

2.5

2.6 

3.0 

3.5

610

850

1,240

1,890

4.0 

5.0 

6.0 

7.4

2,700

4,730

7,280

11,300

2.9 

3.2 

3.6 

4.0

1,180 

1,530 

2,110 

2,'750

5.0 

6.0 

7.0

4,810

7,500

10,500

Discharge, in cubic feet per second, water year October 1950 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

2S

29

30

31

Total

Mean

Ac- ft

Oct.

1,570 

1,580

1,570

1,560

1,540

1,530

1,550

1,550

1,550

1,600

1,600 

1,580 

1,550

1,500

1,500

1,600

1,550

1,550

1,500

1,500

1,500 

1,500 

1,500

1,500

1,450

1,400

1,600

1,600

1,650

1,700

1,900

48,330

1,559

95,860

Nov.

1,800 

1,700

1,600

1,600

1,600

1,690

1,710

1,720

*1,720

1,560

1,540 

1,740 

1,760

1,720

1,720

1,650

1,680

1,720

1,780

1,760

1,780 

1,830 

1.79D

1,750

1,690

1,690

1,680

1,640

1,610

1,580

-

50,810

1,694

100,800

Dec.

1,650 

l,6lO

1,520

1,540

1,610

1,520

1,510

1,610

1,610

1,570

1,570 

1,540 

1,510

1,400

bl,250

bl,400

*bl,440

bl,400

1,420

1,430

bl,200 

bl,150 

1,240

1,400

1,380

1,280

1,220

1,230

1,320

1,400

1,340

44,270

1,428

87,810

Jan.

1,280 

1,180

1,350

1,350

1,340

1,250

1,030

895

1,040

bl,050

bl,100 

1,210 

1,160

1,380

bl,400

bl,360

*bl,280

bl,210

1,150

1,080

1,060 

1,280 

bl,350

1,300

bl,300

1,320

1,300

1,140

967

720

580

36,412

1,175

72,220

Feb.

620 

760

950

1,020

1,150

bl,250

bl,300

bl,400

bl,500

bl,700

bl,800 

bl,650 

bl,500

bl,350

1,280

1,350

1,340

1,260

1,280

1,250

1,280 

1,260 

1,230

1,250

1,260

1,230

1,200

1,170

_

_

-

35,590

1,271

70,590

Mar.

1,180 

1,100

1,150

1,110

1,150

1,120

1,110

*1,180

1,170

bl,050

1,050 

1,040 

1,210

1,280

1,280

1,480

1,340

1,180

1,210

1,360

1,470 

1,610 

1,340

1,230

1,320

1,440

1,440

1,310

1,240

1,300

1,320

38,770

1,251

76,900

Apr.

1,350 

1,370

1,430

1,530

1,650

1,850

2,020

2,190

2,330

2,470

2,490 

2,450 

2,570

3,010

3,380

*3,500

3,520

3,760

3,950

4,040

3,910 

3,640 

3,400

3,380

3,3OO

3,130

3,220

3,320

3,760

3,720

-

85,640

2,855

169,900

May

3,400 

3,090

2,860

2,850

3,050

3,500

4,330

5,270

5,420

5,570

6,040 

6,580 

6,580

5,960

5,300

5,060

5,220

5,930

*6,790

7,200

7,450 

7,700 

8,370

9,380

9,860

9,740

9,800

10,800

11,500

10,700

9,830

204,910

6,610

406,400

June

8,790 

7,710

6,820

6,240

5,990

6,020

5,860

5,430

5,050

4,720

4,720 

5,050 

5,830

6,570

7,650

*9,030

9,990

10,200

9,810

9,360

8,940 

8,610 

8,130

7,270

6,820

6,650

6,510

6,370

6,290

6,240

-

212,670

7,089

421,800

July

6,150 

6,070

6,050

6,070

6,100

5,750

5,330

5,120

4,930

4,810

4,930 

4,560 

4,230

4,050

4,030

*3,960

3,860

3,750

3,630

3,630

3,500 

3,320 

3,130

3,000

2,910

2,820

2,750

2,750

3,090

3,340

3,040

130,660

4,215

259,200

Aug.

2,910 

2,860

2,730

2,880

5,000

2,820

2,720

2,600

2,500

2,400

2,280 

2,170 

2,060

1,980

1,880

1,810

1,750

1,670

1,610

1,590

*1,590 

1,730 

1,930

2,110

2,100

1,930

1,840

1,810

1,770

1,740

1,710

66,480

2,145

151,900

Sept.

1,680 

1,660

1,600

1,560

1,530

1,490

1,460

1,410

1,580

1,560

1,350 

1,510 

1,310

1,510

1,300

1,290

1,280

1,280

1,270

1,260

1,250 

1,270 

1,280

1,290

1,270

1,280

1,330

1,310

1,300

1,280

-

40,930

1,364

81,180

Calendar year 1950: Max 8,820 Min 770 Mean 2,218 Ac-ft 1,606,000

Water year 1950-51: Max 11,300 Min 580 Mean 2,727 Ac-ft 1,975,000

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. No gage-height record Oct. 6 to Nov. 5, Jan. 30 to Feb. 5; discharge estimated on ba 

weather records and records for other Salmon River stations.
SALMON RIVER BASIN 211

Panther Creek near Shoup, Idaho

Location.--Lat 45°19', long. 114°23', in sec. 19, T. 23 N., R. 18 E., 25 ft downstream 

from bridge on private road, 1 mile upstream from mouth, and 7 miles southwest of 

Shoup.

Drainage area. 529 sq mi.

Records available. October 1944 to September 1951.

Gage. Staff gage read once daily. Altitude of gage is 3,280 ft (from river-profile).

Average discharge. 7 years, 252 cfs.

Extremes. Maximum discharge observed during year, 1,880 cfs May 24 (gage height, 3.55 

ft); minimum daily, 50 cfs Jan. 29; minimum gage height observed, 0.06 ft Jan. 7.

1944-51: Maximum discharge observed, 2,500 cfs May 9, 1947 (gage height, 4.20 ft); 

maximum gage height observed, 4.4 ft Jan. 6, 1947 (backwater from ice); minimum discharge observed, 35 cfs Dec. 17, 1946 (gage height, -0.08 ft).

Remarks. Records fair except those for periods of ice effect, which are poor. Diversions above station for irrigation of about 1,000 acres.

Revisions (water years).--W 1063: 1945.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

45

70

126

198

290

1.5 

2.0 

2.5 

3.0 

3.6

449

715

1,030

1,410

1,920

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

118

118

118

122

122

122

126

126

135

130

13O

122

122

116

122

122

122

126

130

126

122

126

122

122

126

126

122

122

126

126

122

3,837

124

0.234

0.27

7,610

Nov.

126

126

122

118

122

126

*133

130

70

78

91

102

1O6

118

118

118

122

126

116

95

118

118

114

116

116

114

106

102

102

118

-

3,387

113

0.214

0.24

6,720

Dec.

110

91

91

118

73

90

105

105

102

110

106

110

96

73

105

98

94

*90

90

90

87

85

92

92

92

84

70

84

106

106

110

2,955

95.3

0.180

0.21

5,860

Jan.

106

96

1O2

98

90

70

52

70

75

85

90

95

105

115

120

*120

115

110

105

105

105

1OO

100

95

90

85

80

60

50

70

80

2,839

91.6

0.173

0.20

5,630

Feb.

90

95

10O

105

110

120

130

140

150

150

160

140

130

12O

115

115

110

110

1O5

100

10O

95

95

94

92

91

95

95

_

-

-

3,152

113

0.214

0.22

6,250

Mar.

95

95

9O

90

91

118

91

91

*93

90

90

98

91

91

95

91

89

72

89

96

100

102

93

100

95

1O6

110

118

102

no

114

2,996

96.6

O.183

0.21

5,940

Apr.

114

110

120

133

137

139

ISO

220

259

283

244

256

312

397

405

431

*427

449

449

440

431

397

349

326

312

341

356

431

516

477

-

9,441

315

0.595

0.66

18,730

May

431

356

356

372

449

6O1

923

1,100

1,070

1,100

1,170

1,250

1.17O

1,030

897

936

1,070

1,250

*1,350

1,330

1,33O

1,390

1,650

1.880

1,740

1,610

1,700

1,830

1,700

1,490

1,290

35,821

1,156

2.19

2.52

71,050

June

1,100

936

897

804

81O

773

715

686

629

601

686

773

897

996

1,210

*1.500

1,250

1,170

1,060

1,030

962

897

773

744

744

715

657

629

574

547

-

25,565

852

1.61

1.80

50,710

July

547

526

521

521

458

440

440

414

405

384

384

397

349

345

*319

308

290

283

256

256

250

250

232

226

215

209

198

212

198

193

185

10,211

329

0.622

0.72

20,250

Aug.

188

185

182

198

172

188

182

177

177

172

172

162

158

148

148

135

137

135

126

126

126

*146

198

198

160

148

144

137

135

144

135

4,939

159

0.301

0.35

9,800

Sept.

130

126

126

122

118

116

114

106

110

114

116

110

110

110

110

106

106

106

106

98_

102

102

102

98

102

106

106

1O6

106

106

-

3,296

110

0.208

0.23

6,540

Calendar year 1950: Max 1,370 Min _ Mean 238 Cfsm 0.450 In. 6.11 Ac-ft 172,500

Water year 1950-51: Max 1,880 Mln 50 Mean 297 Cfsm 0.561 In. 7.63 Ac-ft 215,100

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 6-8, 15-20, 22-25, Jan. 2, 3, 5, Jan. 8 to 

Feb. 25, Feb. 27, Mar. 1-4, 10-12.
212 SALMON RIVER BASIN

Salmon River near Shoup, Idaho

Location. Lat 45°19'30", long. 114°26'00", in NE^SWi sec. 14, T. 23 N., R. 17 E., 0.6 mile 

upstream from Owl Creek, 2.3 miles downstream from Panther Creek, and 9 miles southwest 

of Shoup.

Drainage area. 6,270 sq mi, approximately. 

Records available . October 1944 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,160 ft (from river-profile map). Prior 

ro May 4, 1947, wire-weight gage at site 1.3 miles upstream at datum 3,168.69 ft above 

mean sea level, unadjusted. May 4, 1947, to Sept. 17, 1951, staff gage read once daily 

at site 200 ft downstream from wire-weight gage at datum 1.28 ft higher than present 

datum.

Average discharge. 7 years, 3,031 cfs.

Extremes. Maximum discharge observed during year, 15,400 cfs May 29 (gage height, 7.34ft); 

minimum daily, 800 cfs Jan. 31, Feb. 1.

1944-51: Maximum discharge observed, 16,900 cfs June 4, 1948 (gage height, 7.90 ft, 

site and datum then in use); minimum daily, that of Jan. 31, 1950, Feb. 1, 1951.

Remarks . Records fair. Diversions above station for irrigation of about 88,000 acres.

Rating tables, water year 1950-51, except periods of Ice effect (gage 

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

Oct. 1 to Sept. 17 Sept. 17-30

0.8 

1.0 

1.5 

2.0

1,200

1,410

2,070

2,840

3.0 

4.0 

6.0 

7.4

4,850

7,100

11,900

15,600

2.5 

2.7

1,660

1,900

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

2,160 

2,160

2,220

2,220 

2,220

2,280

2,280

2,280

2,250

2,340

2,280

2,220

2,220

2,190

2,160

2,340

2,220

2,220

2,190

2,190

2,160 

2,130

2,130 

2,100

2,070

2,040

2,220

2,250

2,370

2,460

2,400

68,970

2,225

136,800

Nov.

2,680 

2,680

2,370

2,340 

2,340

2,370

*2,400

2,370

2,280

2,130

2,070

2,160

2,220

2,340

2,310

2,250

2,280

2,280

2,310

2,310

2,340 

2,370

2,370 

2,370

2,310

2,310

2,280

2,220

2,220

2,220

-

69,500

2,317

137,900

Dec.

2,190 

2,190

2,190

2,070 

2,160

2,100

2,040

2,040

2,010

2,070

2,100

2,130

2,010

1,870

1,760

1,760

2,010

*1,790

1,820

1,960

1,660 

1,630

1,610 

1,870

1,930

1,930

1,760

1,790

1,870

1,930

1,900

60,150

1,940

119,300

Jan.

1,750 

1,600

1,870

1,850 

1,850

1,700

1,400

1,300

1,370

1,390

1,600

1,700

1,600

1,900

2,200

*2,200

1,900

1,800

1,600

1,500

1,500 

1,790

1,940 

1,800

1,800

1,800

1,700

1,500

1,100

900

800

50,710

1,636

100,600

Feb.

*800 

1,550

1,300

1,400 

1,600

1,700

1,800

1,900

2,100

2,300

2,600

2,800

2,750

2,600

2,400

2,200

2,100

2,000

2,000

1,900

1,900 

1,900

1,800 

1,800

1,800

1,800

1,700

1,700

_

-

53,600

1,914

106,300

Mar.

1,690 

1,690

1,660

1,560 

1^560

1,560

1,690

1,820

*1,690

1,660

1,660

1,690

1,820

1,900

1,960

2,040

2,100

1,740

1,690

1,660

2,100 

2,870

2,250 

2,100

2,250

2,310

2,250

2,400

2,220

2,060

2,000

59,650

1,924

118,300

Apr.

2,080 

2,120

2,260

2,420 

2,570

2,570

3,060

3,250

3,520

3,640

3,640

3,600

3,760

4,220

4,920

4,920

*5,000

5,270

5,360

S,SSO

5,440 

5,140

4,920 

4,700

4,700

4,500

4,600

4,700

5,140

5,360

-

122,960

4,099

243,900

May

5,140 

4,700

4,280

4,200 

4,280

5,160

6,500

8,590

8,590

8,590

8,830

9,780

10,000

9,070

8,350

7,650

7,880

9,070

*9,780

10,500

10,500 

10,700

11,500 

13,500

14,300

13,800

13,300

14,600

15,400

14,900

13,500

296,940

9,579

589,000

June

15,500 

10,700

9,450

8,590 

8,110

8,110

8,110

7,880

7,970

6,960

6,960

8,110

9,070

10,000

10,300

*11,000

12,200

13,000

12,100

11,500

10,700 

10,300

10,000 

9,310

8,830

8,590

8,350

7,880

7,880

7,880

-

283,340

9,445

562,000

July

7,650 

7,650

7,420

7,650 

8,020

7,650

6,960

6,730

6,500

6,270

6,270

6,040

5,600

5,160

*5,200

5,200

5,110

4,940

4,590

4,280

3,860 

3,860

3,660 

3,860

3,860

3,660

3,460

3,460

3,660

4,500

4,280

167,010

5,387

331,300

Aug.

3,950 

3,580

3,460

3,460 

4,500

3,860

3,700

3,460

3,150

3,080

3,080

2,940

2,840

2,810

2,680

2,650

2,430

2,250

2,130

2,070

2,070

*2,100

2,250 

2,650

2,740

2,580

2,430

2,430

2,400

2,370

2,310

88,410

2,852

175,400

Sept.

2,280 

2,250

2,190

2,130

2,100

2,010

1,990

1,960

1,900

1,850

1,850

1,820

1,790

1,790

1,820

1,820

1,790

*1,740

1,760

1,730

1,710 

1,730

1,740 

1,760

1,760

1,760

1,780

1,790

1,780

1,760

-

56,140

1,871

111,400

Calendar year 1950: Max 11,900 Mln 990 Mean 3,049 Ac-ft 2,207,000

Water year 1950-51: Max 15,400 Mln 800 Mean 3,774 Ac-ft 2,732,000

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for other Salmon River stations.

Note.--Stage-discharge relation affected by Ice Jan. 1, 2, 6-8, 11-21, Jan. 24 to Feb. 28.
SALMON RIVER BASIN 213

Middle Fork Salmon River near Cape Horn, Idaho

Location. Lat 44°25', long. US 0 !! 1 , in sec. 34, T. 13 N., R. 11 E., on left bank 1,100 

ft downstream from Little Beaver Creek, half a mile downstream from confluence of Marsh 

and Beaver Creeks, and 2 miles northwest of Cape Horn.

Drainage area. 138 sq mi.

Records available. September 1928 to September 1951 (no winter records 1941-45). 

Gage. Water-stage recorder. Altitude of gage is 6,435 ft (by barometer). 

Average discharge.--19 years (1928-41, 1945-51), 222 cfs.

Extremes . Maximum discharge during year, 1,950 cfs May 28 (gage height, 5.89 ft); mini- 

 mum, 58 cfs Mar. 28 (gage height, 2.33 ft), but may have been less during period of ice 

effect.

1928-51: Maximum discharge, 2,340 cfs June 9, 1933, about May 31, 1943, June 3, 

1948; maximum gage height, 6.26 ft June 9, 1933, June 3, 1948; minimum discharge recorded, 31 cfs Apr. 14, 1945 (gage height, 2.12 ft), but may have been less during some 

winters.

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

record, which are poor. No diversion above station.

Revisions. W 738: Drainage area.

Rating table, water year 195O-51, except periods of Ice effect (gage 

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

2.3 

2.5 

2.8 

3.1 

3.5

53

85

145

223

359

4.0 

4.5 

5.0 

6.0

575

850

1,180

2,060

Discharge, In cubic feet per second, water year October 195O 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

Itotal

Mean

Cfsm

In.

Ac-ft

Oct.

132

125

125

125

138

157

145

152

147

134

130

125

121

121

138

125

127

152

134

125

121

117

115

113

134

159

179

164

248

192" 254

4,474

144

1.04

1.21

8,870

Nov.

167

169

159

157

155

152

152

159

105

110

130

130

127

130

125

125 

134

136

125

141

145

136

130

125

125

123

115

113

105

115

-

4,020

134

0.971

1.08

7,970

Dec.

110

105

115

119

113

110

120

120

115

113

allo

allo

alOO

100

110

111 

100

100

105

103

96

98

103

96

95

90

95

100

105

loo

90

3,257

105

0.761

0.88

6,460

Jan.

95

100

100

95

90

85

80

90

95

95

90

85

90

95

95

95

90

90

85

80

85

85

90

90

90

85

80

70

65

65

70

2,695

86.9

0.630

0.73

5,350

Feb.

75

80

80

85

85

85

90

*95

95

100

100

100

105

Tof

100

100

95

90

90

90

90

90

90

89

87

87

85

85

_

-

-

2,549

91.0

0.659

0.69

5,050

Mar.

85

85

85

85

80

80

80

80

80

11

80

80

80

80

80

80 

80

80

80

83

83

80

78

*77

80

80

75

75

78

78

76

2,478

79.9

0.579

0.67

4,920

Apr.

80

80

89

98

109

119

130

143

159

164

169

187

223

270

298

333 

382

427

448

452

418

398

398

390

367

386

418

504

509

452

8,600

287

2.08

2.32

17,060

May

418

390

402

491

580

724

898

923

1,040

1,140

1,200

1,060

930

832

886

968 

1,080

1,200

1,300

1,350

1,390

1,520

1,680

1,720

1,700

1,710

1,820

1,850

1,660

1,460

1,250

35,572

1,147

8.31

9.59

70,560

June

1,080

942

874

856

930

874

796

740

708 730"

796

975

*1,060

1,190

1,420

1,590 

1,570

1,460

1,360

1,270

1,200

1,120

982

923

880

856

820

808

734

757

-

30,301

1,010

7.32

8-17

60,100

July

740

713

691

713

647

590

551

522

496

486

460

*427

406

390

375

359 

344

326

315

304

290

277

267

264

261

242

238

251

254

232

229

12,660

408

2.96

3.41

25,110

Aug.

242

217

223

229

215

245

538

206

198

190

182

177

172

169

162

157 

152

150

147

155

167

162

195

187

*159

150

145

147

147

150

143

5,578

180

1.30

1.50

11,060

Sept.

138

134

132

127

127

123

121

119

119

119

117

117

117

115

113

113 

111

111

107

107

107

107

107

105

158

134

117

113

111

113

-

3,539

118

0.855

0.95

7,020

Calendar year 1950: Max 1,71O Mln - Mean 3O5 Cfsm 2.21 In. 30. OO Ac-ft 220, 8OO

Water year 1950-51: Max 1,850 Mln 65 Mean 317 Cfsm 2.3O In. 31.20 Ac-ft 229,500

Peak discharge (base, 950 efs). May 10 (8 p.m.) 1,420 cfs (5.31 ft); May 28 (1 a.m.) 1.95O cfs 

(5.89 ft); June 16 (11:30 p.m.) 1,65O cfs (5.60 ft).

* Discharge measurement made on this day.

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

on nearby streams.

Note. Stage-discharge relation affected by Ice Nov. 9, 10, Nov. £7 to Dec. 3, Dec. 6-8, 14, 15, 

17. IS, 22, Dec. 25 to Feb. 23, Feb. 26 to Mar. 19, Mar. 24, 25.
214 SALMON RIVER BASIN

Bear Valley Creek near Cape Horn, Idaho

Location.. Lat 44°26' , long. 115°17', in sec. 29, T. 13 N. , R. 10 E. , on right bank 250 ft 

downstream from Fir Creek, 3 miles upstream from mouth, and 7 miles northwest of Cape 

Horn.

Drainage area. 180 sq mi.

Records available. September 1921 to September 1928 (fragmentary), October 1928 to September 1951 (no winter records 1941-45).

Gage. Water-stage recorder. Altitude of gage is 6,340 ft (by barometer). 

Average discharge.--19 years (1928-41, 1945-51), 270 cfs.

Extremes. Maximum discharge during year, 2,560 cfs May 27 (gage height, 4.85 ft); minimum daily, 85 cfs Jan. 29, 30; minimum gage height recorded, 1.37 ft Dec. 21.

1921-51: Maximum discharge, 3,450 cfs June 9, 1933 (gage height, 5.49 ft), from 

rating curve extended above 2,000 cfs; minimum recorded, 28 cfs Nov. 11, 1931.

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

which are poor. No regulation or diversion above station.

Revisions. W 573: Drainage area.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

1.2 

1.5 

1.8 

2.1 

2.5

74

135

225

348

555

3.0 

3.5 

4.0 

5.0

875

1,250

1,670

2,730

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

ZO

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

148

143

143

143

153

198

176

194

194

170

153

145

138

133

138

135

138 

194

198

156

145

138

133

130

140

194

255

225

317

445

35T

5,665

183

1.02

1.17

11,240

Nov.

267

240

225

229

225

222

211

218

145

155

161

158

155

160

150

150

160 

165

165

180

200

180

170

160

160

160

150

145

135

160

-

5,361

179

0.994

1.11

10,630

Dec.

140

135

150

160

T50

145

155

155

150

150

145

145

130

»130

150

148

130

130

140

133

130

130

135

126

120

120

120

125

140

130

115

4,262

137

0.761

0.88

8,450

Jan.

125

130

130

125

115

110

105

120

125

125

120

110

120

125

125

125

120 

120

110

105

110

110

115

115

115

110

105

95

85

85

95

3,530

114

0.633

0.73

7,000

Feb.

100

105

105

110

110

110

120

*120

125

130

130

130

135

T35

130

130

125 

120

120

120

120

120

120

120

115

115

110

110

«

_

-

3,340

119

0.661

0.69

6,620

Mar.

110

110

110

110

105

105

105

105

105

100

105

110

110

110

110

110

110

110

110

120

120

115

115

120

150

130

130

*128

120

117

115

3,510

113

0.628

0.73

6,960

Apr.

117

12T

128

140

153

173

194

225

252

275

304

326

357

420

462

472

511

573

609

621

561

538

538

538

500

511

579

720

727

627

12,272

409

2.27

2.54

24,340

May

555

511

BTT

609

720

952

1,260

1,320

1,430

1,560

1,690

1,470

1,230

1,100

1,120

1,350

1,560 

1,690

1,820

1,830

1,810

2,000

2,210

2,220

2,250

2,210

2,540

2,320

2,080

1,840

1,620

47,188

1,522

8.46

9.75

93,600

June

1,380

1,250

1,160

1,140

1,310

1,380

1,200

1,100

968

960

1,030

1,170

»1,330

1,310

1,470

1,650

1,690 

1,610

1,540

1,440

1,380

1,300

1,220

1,100

1,040

982

917

882

833

792

36,534

1,218

6.77

7.55

72,460

July

766

746

708

734

720

627

573

533

500

484

467

»425

400

376

357

339

326 

308

292

284

271

263

252

252

244

236

229

233

267

236

222

12,670

409

2.27

2.62

25,130

Aug.

222

215

218

240

263

255

275

222

208

198

191

182

182

179

179

173

173 

167

164

ieT

173

179

201

252

*191

179

170

170

173

179

173

6,113

197

1.09

1.26

12,120

Sept.

164

161

156

151

151

148

143

143

140

140

138

138

138

135

133

133

130 

130

130

128

128

128

128

128

145

208

156

145

140

138

-

4,274

142

0.789

0.88

8,480

endar year 1950: 

er year 1950-51:

eak discharge (ba

60 cfs (4.85 ft);

Max 2 

Max 2

se, 1,

June

,190 

,340

200 cfs)

16" (4 to

Mln - 

Mln 85

. May

5 p.m.

11

) 1

Mean 

Mean

(4 to 7

,760 of

369 

396

p.m

(4

Cfsm 2 

Cfsm 2

) 1,730 cfs

10 ft) .

05 In. 

20 In.

(407 ft)

27.84 Ac-ft 

29.91 Ac-ft

; May 27 (9:

267 

287

30 a.

,200 

,000

m.)

Note.--Stage-discharge relation affected by Ice Nov. 9, 10, Dec. 14, 15, 17-19, 21-23, Dec. 25 to 

about Mar. 20, Mar. 29, 31. No gage-height record Nov. 13 to Dec. 13, Jan. 21 to Feb. 7, Mar. 11- 

2?j discharge estimated on basis of weather records and records for stations on nearby streams.
SALMON RIVER BASIN 215

Big Creek near Big Creek, Idaho

Location Lat 45°07>, long. 114°55', in NE£ sec. 36, T. 21 N., R. 12 E., on left bank

 three-quarters of a mile downstream from Cabin Creek, If miles southeast of Wallace 

Ranch, and 19 miles east of Big Creek post office.

Drainage area.--470 sq mi, approximately.

Records available.--September 1944 to September 1951.

Gage --Water-stage recorder. Altitude of gage is 3,950 ft (from river profile). Prior

 Uo Oct. 22, 1948, staff gage at site a quarter of a mile downstream at different datum.

Average discharge. 7 years, 498 cfs.

Extremes.--Maximum discharge during year, 3.600 cfs May 25 (gage height, 5.74 ft); raini-

 mum, 92 cfs Jan. 7 (gage height, 1.56 ft), but may have been less during period of ice 

effect

1944-51- Maximum discharge, 5,800 cfs June 3, 1948 (gage height, 7.12 ft, from 

floodmark, former site and datum), from rating curve extended above 3,000 cfs by logarithmic plotting; minimum observed, 66 cfs 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, which are fair. No regulation. Small diversions above station for irrigation.

Rating tables, water year 1950-51, except periods of ice effect (gage

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

(Shifting-control method used June 20-24)

Oct. 1 to June 2O June 21 to Sept. 30

Z.I 

2.5

97

132

221

427

3.0 790

4.0 1,720

5.6 3,410

2.1 

2.4 

2.7

153

275

450

3.0 681

3.5 1,130

5.0 2,680

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Cf sm

In.

Ac-ft

Oct.

210

210

210

217

225

293

247

238

255

242

234

230

225

217

238

238

260

340

*324

293

269

255

247

234

247

274

298

303

458

546

471

8,548

276

0.587

0.68

16,950

Nov.

398

362

335

330

324

324

324

324

255

225

293

274

255

251

238

242

242

242

234

238

247

234

234

225

230

234

242

242

238

238

-

8,074

269

0.572

0.64

16,010

Dec.

238

207

225

225

179

196

230

214

214

214

207

207

189

170

214

207

199

192

192

189

182

168

199

185

185

168

154

196

203

192

182

6,122

197

0.419

0.48

12,140

Jan.

176

179

179

179

173

122

110

130

140

150

160

180

190

199

199

199

182

165

149

155

160

170

160

160

168

162

154

*120

100

125

140

4,935

159

0.338

0.39

9,790

Feb.

160

160

170

160

190

200

200

210

240

260

280

303

250

220

200

190

180

180

170

170

170

160

160

160

168

155

160

160

-

_

-

5,406

193

0.411

0.43

10,720

Mar.

160

150

160

160

162

155

165

155

165

145

145

155

168

155

Io2

173

162

145

155

162

168

173

*170

176

179

199

203

207

207

214

214

5,279

170

0.362

0.42

10,470

Apr.

210

217

274

374

497

602

694

766

782

790

750

782

915

1,110

1,120

1,090

1,130

1,220

1,190

1,110

987

897

830

790

766

806

879

1,010

1,120

1,020

-

24,728

824

1.75

1.96

49,050

May

915

838

790

806

870

1,140

1,670

1,770

1,670

1,810

2,070

2,010

1,730

1,490

1,340

1,360

1,650

*2,010

2,160

2,130

2,160

2,360

2,780

3,000

2,760

2,590

2,860

5.400

2,840

2,380

2,030

59,389

1,916

4.08

4.70

117,800

June

1,790

1,610

1,480

1,390

1,370

1,330

1,280

1,240

1,210

1,270

1,460

1,730

1,910

2,040

2,410

2,650

2,430

2,240

2,040

2,000

*1,910

1,800

1,640

1,620

1,540

1,510

1,430

1,420

1,380

1,340

-

50,450

1,682

3.58

3.99

100,100

July

1,320

1,340

1,290

1.590

1,280

1,170

1,090

1,040

986

959

887

835

806

788

770

726

690

656

623

590

544

514

*493

471

457

437

424

418

450

404

319

24,225

781

1.66

1.92

48,050

Aug.

368

562

550

550

539

344

327

517

506

296

285

280

266

261

257

252

245

258

234

*229

225

258

501

527

266

252

245

247

261

266

252

8,782

285

0.602

0.69

17,420

Sept.

258

229

225

221

217

215

208

200

196

196

196

200

196

192

188

184

181

181

181

178

178

178

178

174

174

184

178

*174

170

170

-

5,778

195

0.411

0.46

11,460

Calendar year 1950: Max 3,530 Min 105 Mean 560 Cfsm 1.19 In. 16.18 Ac-ft 405,600

Water water year year 1950-51: iMbU-bi: Max max 3,400 3,*uu Min Min 100 luu Mean mean 580 bbo Cfsm ui sm 1.23 i.za In. J.n. 16.76 IB. it, Ac-ft AC-H 420,000 4zu,uuu

Peak discharge (base. 2,000 cfs).--Hay 11 (10:50 p.m.) 2,160 cfs (4.38 ft)j May 28 (6 a.m.) 3,600 

cfs (5.74 ft); June 16 (5 to 5 a.m.) 2,790 cfs (5.02 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Jan. 7-15, 20-24, Jan. 28 to Feb. 11, Feb. 15-24, 

Feb. 26 to Mar. 4, Mar. 6, 8, 10-12, 14, 18, 19 (no gage-height record Feb. 1-9).
216 SALMON RIVER BASIN 

South Fork Salmon River near Knox, Idaho

Location.--Lat 44°39', long. 115°42', in NW£ sec. 11, T. 15 N., R. 6 E., on left tank 

800 ft downstream from Curtis Creek, 1 mile upstream from Warm Lake Creek, If miles 

southwest of Knox, and 21 miles northeast of Cascade.

Drainage area. 92 sq mi, approximately.

Records available. September 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 5,090.31 ft above mean sea level, unad- 

"Justed. Prior to Oct. 22, 1942, staff gage at site 800 ft downstream at datura 2.09 

ft lower.

Average discharge.--23 years, 137 cfs.

Extremes. Maximum discharge during year, 1,080 cfs May 28 (gage height, 5.55 ft); minimura daily, 38 cfs Jan. 29; minimum gage height, 2.53 ft Sept. 20, 21, 25.

1928-51: Maximum discharge observed, 1,560 cfs June 9, 1933 (gage height, 4.69 

ft, site and datum then in use), from rating curve extended above 1,000 cfs; minimum 

observed, 16 cfs Feb. 17, Aug. 19, 20, 1931, Nov. 16, 1944.

Remarks. Records excellent except those for periods of ice effect, which are fair. No 

diversion above station.

Revisions (water years). W 1043: 1943.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

2.5

2.6 

2.8 

3.0 

3.3

48

79

116

179

3.6 

4.0 

4.5 

5.0 

6.0

254

384

580

817

1,340

Discharge, In cubic feet per second, water year October 1950 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

total

Mean

Cfsm

In.

Ac-ft

Oct.

54

52

52

55

67

77

65

74

74

61

56

54

51

51

55

52

74

116

*79

67

61

58

56

55

64

97

106

114

232

184

142

2,455

79.2

0.861

0.99

4,870

Nov.

124

116

110

110

106

105

105

108

84

86

95

93

84

86

*79

76

76

83

74

81

93

76

70

69

67

69

69

69

67

74

-

2,604

86.8

0.943

1.05

5,160

Dec.

70

65

74

77

74

76

83

77

77

84

83

83

77

74

88

79

76

72

72

70

69

62

70

67

65

54

60

65

67

67

64

2,241

72.3

0.786

0.91

4,440

Jan.

58

62

62

65

62

50

48

55

64

62

60

60

58

58

60

60

58

*56

57

58

59

58

56

56

56

56

55

45

38

43

49

1,744

56.3

0.612

0.70

3,460

Feb.

50

60

60

60

62

60

70

80

100

105

105

90

80

75

80

75

72

70

70

70

68

68

68

68

68

66

66

66

_

-

2,032

72.6

0.789

0.82

4,030

Mar.

*66

66

64

64

66

64

64

66

67

63

60

64

64

66

67

66

64

62

66

70

72

72

72

72

74

79

81

84

81

83

83

2,152

69.4

0.754

0.87

4,270

Apr.

86

97

120

142

172

207

243

260

268

271

263

280

332

402

409

406

431

462

462

431

377

349

342

*335

312

315

335

428

420

363

-

9,320

311

3.38

3.77

18,490

May

325

296

289

315

342

428

572

624

656

718

772

718

633

546

513

555

633

699

723

733

752

817

927

*952

932

932

983

999

872

767

665

20, 688

667

7.25

8.36

41,030

June

580

518

485

466

530

485

424

395

384

402

458

567

589

638

728

777

742

694

647

611

567

*522

474

454

424

402

384

370

349

552

-

15,598

515

5.58

6.22

50, 540

July

518

309

289

535

283

254

232

217

204

195

188

175

166

157

155

144

156

132

126

122

*116

110

108

103

99

95

92

88

88

84

§1

5,199

168

1.83

2.10

10, 310

Aug.

79

76

74

76

81

84

79

74

72

69

65

64

61

61

59

58

56

55

54

*S4

54

58

70

72

58

54

51

74

69

74

62

2,047

66.0

0.717

0.85

4,060

Sept.

56

54

52

51

49

48

47

46

46

45

45

45

45

45

44

42

42

42

41

41

41

41

41

40n

*59

48

46

45

48

-

1,596

46.5

0.505

0.56

2,770

Calendar year 1950: Max 1,040 Min - Mean 182 Cfsm 1.98 In. 26.92 Ac-ft 132,100

Water year 1950-51: Max 999 Min 38 Mean 184 Cfsra 2.00 In. 27.18 Ac-ft 133,400

Peak discharge (base. 600 efs).--May 10 (11 p.m.) 812 cfs (4.99 ft); May 28 (l a.m.) 1,080 cfs 

(5.55 ft); June 16 (1 a.m.) 862 cfs (5.12 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Nov. 10, Dec. 2, 22, 26-29, Dee. 51 to Jan. 2, 

Jan. 5-20, 25, Jan. 28 to Mar. 8, Mar. 10-12, 14, 16-20, 23, 24.
SALMON RIVER BASIN 

Johnson Creek at Yellow Pine, Idaho

217

Location. Lat 44°58', long. 115°30', in NE^ sec. 29, T. 19 N. , R. 8 E., on right bank 

700 ft upstream from mouth and a quarter of a mile southwest of Yellow Pine.

Drainage area. 213 sq mi.

Records available. August 1928 to September 1951.

Gage. Water-stage recorder. Datum of gage is 4,657.70 ft above mean sea level, datum 

of 1929 (preliminary).

Average discharge. 23 years, 324 cfs.

Extremes.--Maximum discharge during year, 3,020 cfs May 28 (gage height, 5.77 ft); minimum, 66 cfs Jan. 29 (gage height, 1.14 ft).

1928-51: Maximum discharge, 5,150 cfs June 9, 1933 (gage height, 7.62 ft), from 

rating curve extended above 2,800 cfs; minimum, 22 cfs Nov. 30, 1933; minimum gage 

height, 0.70 ft Nov. 30, 1937.

Remarks. Records good. Small diversion from Johnson Creek basin to Deadwood River basin 

(see Remarks for Deadwood Reservoir near Lowman).

Rating table, water year 1950-51 (gage height, in feet 

and discharge, in cubic feet per second)

1.2 

1.5 

2.0 

2.5

131

275

475

3.0 

4.0 

5.0 

5.6

725

1,360

2,220

2,830

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

107

105

TOT

111

124

153

133

145

168

148

133

124

118

113

127

122

155

*255

222

173

155

145

141

133

143

190

213

207

377

440

353

5,340

172

0.808

0.93

10,590

Nov.

304

- 272

258

261

261

258

251

244

176

I87

219

210

193

201

184

*184

187

190

176

193

207

204

193

187

187

184

178

176

176

184

-

6,285

210

0.986

1.10

12,470

Dec.

168

160

173

176

148

163

176

165

165

165

168

168

163

150

168

160

155

153

153

153

148

138

158

150

148

116

131

150

150

150

138

4,827

156

0.732

0.84

9,570

Jan.

127

138

129

133

129

103

105

122

141

138

138

129

129

129

127

122

120

113

111

*118

118

116

111

120

120

122

118

103

79

91

101

3,700

119

0.559

0.65

7,340

Feb.

107

T27

122

122

124

116

131

153

153

155

155

148

131

136

141

136

131

138

127

133

131

124

124

124

124

113

113

118

_

-

3,657

131

0.615

0.64

7,250

Mar.

*120

Tie

111

116

116

107

113

111

113

105

103

113

113

111

116

113

105

101

109

105

109

107

107

107

109

113

113

109

113

116

113

3,433

111

0.521

0.60

6,810

Apr.

118

12?

138

163

190

222

261

297

334

365

377

414

498

599

650

676

747

828

870

85?

753

709

698

*682

645

676

731

852

846

736

-

16,049

535

2.51

2.80

31,830

May

671

629

619

698

805

1,050

1,500

1,470

1,610

1,810

1,960

1,630

1,360

1,200

1,180

1,450

1,630

1,930

1,990

1,950

2,000

2,350

*2,630

2,580

2,450

2,470

2,690

2,750

2,250

1,910

1,640

52,862

1,705

8.00

9.23

104,900

June

1,420

1,260

1,160

1,140

1,250

1,180

1,060

1,010

996

1,070

1,220

1,480

1,580

1,710

1,970

2,070

1,950

1,810

1,660

1,590

,490

* ,370

,240

,200

,140

,070

,010

1,000

954

918

-

39,978

1,333

6.26

6.98

79,300

July

906

882

840

966

840

742

687

640

599

569

535

498

471

449

423

402

377

353

334

315

*304

289

272

258

248

235

226

219

219

207

198

14,503

468

2.20

2.53

28,770

Aug.

190

181

178

196 18~4

184

176

165

160

153

148

143

138

136

133

129

124

122

118

116

*118

122

155

168

138

127

120

133

150

155

143

4,603

148

.695

0.80

9,130

Sept.

129

T25

116

111

107

105

101

97

97

97

95

93

93

91

89

88

86

84

82

82

80

80

80

80

86

*116

99

91

88

89

-

2,852

95.1

0.446

0.50

5,660

Calendar year 1950: Max 

Water year 1950-51: Max

2,790

2,750

Min 

Min

Mean 

Mean

436

433

Cfsm 

Cfsm

2.05

2.03

In. 27.76 Ac-ft 

27.60 Ac-ft

315,400

313,600

Peak discharge (base, 1,800 cfs).--May 11 (l a.m.) 2,170 cfs (4.94 ft); May 28 (4 a.m.) 3,020 cfs 

(5.77 ft); June 15 (11 p.m.J 2,350 cfa (5.13 ft). 

* Discharge measurement made on this day.
218 SALMON RIVER BASIN

Secesh River near Burgdorf, Idaho

Location. Lat 45° 14', long. 115°49', in SW£ sec. 23, T. 22 N., R. 5 E., on left bank

 760 ft upstream from Long Gulch Creek ana 5| miles southeast of Burgdorf.

Drainage area.--104 sq mi.

Records available.--April 1943 to September 1951.

Gage.--Water-stage recorder. -Altitude of gage is 5,690 ft (from river profile map). 

"""T^rior to Aug. 20, 1943, staff gage and Aug. 20, 1943, to Sept. 30, 1948, water-stage 

recorder at site 1 mile upstream at different datum.

Average discharge. 8 years, 187 cfs.

Extremes. Maximum discharge during year, 1,330 cfs May 28 (gage height, 5.41 ft); mini-

 mum daily, 44 cfs Jan. 29; minimum gage height, 1.91 ft Sept. 25, 29, 30.

1943-51: Maximum discharge, 2,500 cfs June 3, 1948 {gage height, 8.24 ft, site and 

datum then in use), from rating curve extended above 970 cfs on basis of slope-area 

determination of peak flow; minimum observed, 29 cfs (discharge measurement) Jan. 30, 

1945, but may have been less during periods of ice effect.

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

Rating table, water year 195O-51, except periods of lee effect (gage 

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

1.9 

2.2 

2.6 

3.0

89

163

253

3.5 

4.0 

4.5 

6.0

392

567

795

1,700

Discharge, in cubic feet per second, water year October 195O 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

 total

Mean

Cfsm

In.

Ac-ft

Oct.

67 

66

67

75

108

119

94

110

108

87

81

76

72

68

83

86

 113

220

130

101

94

89

84

83

126

159

195

159

555

440

278

4,193

135

1.30

1.50

8,320

Nov.

222 

202

195

202

199

191

195

182

120

125

140

130

125

*130

120

120

125

135

120

130

140

135

130

125

125

125

115 115"

115

120

-

4,353

145

1.39

1.56

8,630

Dec.

110 

100

110

110

95

100

115

105

105

105

110

110

105

95

105

100

100

100

96

92

91

85

95

91

89

75

85

95

95

95

90

3,054

9S.5

0.947

1.09

6,060

Jan.

80 

85

80

80

80

60

62

80

90

85

85

80

80

80

80

75

75

70

*70

75

75

70

65

70

70

75

70

60

44

50

55

2,256

72.8

0.700

0.81

4,470

Feb.

57 

70

65

65

65

60

70

85

85

85

85

80

75

75

80

75

70

75

65

70

65

60

60

60

60

55

55

60

_

_

-

1,932

69.0

0.6S3

0.69

3,830

Mar.

6O 

55

50

55

55

50

55

55

55

50

45

55

55

55

55

55

50

45

55

53

50

50

50

50

50

*55

55

52

55

55

55

1,640

52.9

0.509

0.59

3,250

Apr.

56 

60

70

90

100

110

130

150

170

180

190

210

246

300

322

339

377

417

414

377

336

311

292

286

292

322

356

430

4O1

345

-

7,679

256

2.46

2.75

15,230

May

316 

311

333

371

414

536

682

690

724

806

866

764

664

596

600

695

790

822

844

861

894

*1,000

1,160

1,160

1,120

1,100

1,18O

1.190

1,020

900

790

24,199

781

7.51

8.65

48,000

June

695 

616

583

575

654

579

532

513

495

528

588

695

700

*748

872

927

666

817

759

733

686

633

592

596

571

524

495

474

446

430

-

18,922

631

6.07

6.77

37,530

July

417

411

398

567

463

395

362

339

316

305

*289

270

256

246

236

222

211

199

191

180

174

167

157

147

139

134

126

120

117

113

110

7,777

251

2.41

2.78

15,430

Aug.

106

101

98

101

98

91

86

S6

84

*83

81

79

78

78

75

72

70

68

66

62

64

68

94

86

72

67

66

81

83

78

70

2,492

80.4

0.773

0.89

4,940

Sept.

67. 

64

61

60

58

55

55

54

54

52

58

58

57

54

52

51

50

50

*48

48

47

47

48

47

47

50

47

47

45

47

-

1,578

52.6

0.506

0.56

3,130

Calendar year 1950: Max 1,540 Min - Mean 236 Cfsm 2.27 In. 3O.83 Ac-ft 171, OOO

Water year 1950-51: Max 1,190 Min 44 Mean 219 Cfsm 2.11 In, 28.54 Ae-ft 158,800

Peak discharge (base. efs).--May 10 (11 p.m.) 96O cfs (4.80 ft); May 28 (3:30 a.m.) 1,33O cfs

(5.41 ft); June 16 (3"a.m.) 1,030 cfs"(4.9! ft)! 

* Discharge measurement made on this day. 

Note.--Stage discharge relation affected by ice Nov. 9 to Dec. 18, Dec. 22, 23, Dec. Z6 to Apr.12.
SALMON RIVER BASIN 219

Salmon River near French Creek, Idaho

Location.--Lat 45°26', long. 115°59', in sec. 8, T. 24 N., R. 4 E., on left bank 100 ft 

downstream from Fall Creek, 2^ miles northeast of French Creek Post Office, and 

16 miles east of Riggins.

Drainage area. 12,270 sq mi, approximately. 

Records available. October 1944 to September 1951.

Gage. Staff gage read once daily. Datum of gage is 1,908.92 ft above mean sea level, 

unadjusted.

Average discharge. 7 years, 10,330 cfs.

Extremes . Maximum discharge observed during year, 57,800 cfs May 28 (gage height, 26.50 

1't); minimum daily, 2,200 cfs Jan. 31, Feb. 1; minimum gage height observed, 1.84 ft 

Jan. 8.

1944-51: Maximum discharge observed, 75,300 cfs May 29, 1948 (gage height, 33.50 

ft); minimum observed, 1,890 cfs Dec. 12, 1944 (gage height, 1.44 ft).

Remarks. Records excellent except those for days of rapidly changing stage and those for 

periods of ice effect or no gage-height record, which are good. Amount of water diverted above station for irrigation is a negligible percentage of total flow.

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Ac -ft

Oct.

4,820 

4,820

4,870

4,950

5,230

5,740

5,740

5,620

5,620

5,540

5,310

5,230 

5,090

4,950

4,820

d5,000

d5,200

d5,700 

6,330

6,100

5,650

5,450 

5,230

5,030

5,010

*5,230

5,310

5,680 

6,470

8,140

8,800

172,680

5,570

0.454

0.52

342,500

Nov.

7,550 

7,230

7,150

7,240

7,080

7,080

7,160

7,580

6,910

6,000

5,890

6,160 

6,250

6,100

6,000

5,820

5,840

6,020 

6,070

6,010

6,130

6,190 

6,240

6,020

5.940

5,840

5,920

5,920 

5,770

5,710

-

190,820

6,361

0.518

0.58

378,500

Dec.

5,840 

5,840

5,770

5,570

5,510

*5,230

5,230

5,260

5,480

5,430

5,120

5,230 

5,010

5,230

5,480

5,230

5,120

5,200 

4,870

4,870

4,900

4,850 

4,480

4,820

4,460

4,920

4,510

4,250 

4,640

4,820

4,980

158,150

5,102

0.416

0.48

313,700

Jan.

4,690 

4,430

4,400

4,480

4,350

4,250

3,580

2,850

3,290

3,990

3,890

d4,000 

4,040

4,480

*4,660

4,690

4,790

4,820 

4,350

4,060

3,800

3,940 

4,230

4,300

4,330

4,400

4,400

4,040 

3,010

b2,300

b2,200

125,040

4,034

0.329

0.38

248,000

Feb.

b2,200 

b2,600'

b3,400

3,820

4,560

4,560

4,820

4,560

5,510

6,250

7,050

8,380 

8,040

6,730

6,410

5,770

5,590

5,370 

4,950

4,920

,920

,920 

,820

,790

,790

4,690

*4,400

4,300

_

-

143,320

5,119

0.417

0.43

284,300

Mar.

4,300 

4,160

4,160

4,130

4,180

4,180

4,180

4,130

4,160

4,180

4,040

5,750 

4,060

4,300

4,430

4,690

4,640

4,460 

4,300

4,430

4,560

5,170 

5,370

5,170

4,850

d5,400

6,010

6,100 

5,800

5,510

5,590

144,390

4,658

0.380

0.44

286,400

Apr.

5,920 

6,130

6,410

7,970

9,860

10,800

12,300

13,400

14,100

14,500

*14, 100

14,100 

15,000

17,600

19,400

20,300

20,700

21,600 

25,200

22,500

d20,800

d!9,400 

d!7,800

d!6, 400

d!6, 200

16,500

d!7,000

18,600 

20,900

d2 1,600

-

475,090

15,836

1.29

1.44

942,300

May

20,000 

18,200

16,600

16 , 100

17,300

20,100

29,300

36,100

36 , 800

38,100

41,800

43,200 

40, 800

36,300

33,300

31,600

34,100

37,100 

43,700

43,700

45,000

*46,100 

50,100

54,900

55,700

54,400

54,400

57,800 

56,800

53,000

47,700

*1, 210.1

39,040

3.18

3.67

*2,400

June

41,100 

37,300

33,600

30,300

29,800

29,300

28,300

26,700

26,000

25.000

25,700

28,300 

33,300

*35,800

38,300

43,400

47 , 400

46,900 

44,800

42,600

40,400

38,100 

34,800

33,600

32,300

30,300

28,700

27,600 

26,700

25,700

-

*1,012.1

33,740

2.75

3.07

*2,007

July

25,000 

24,800

24,300

25,500

26,400

23,300

20,700

19,800

18,900

18,000

17,200

*16,300 

15,700

14,800

14,300

a!3,800

13,300

12,900 

12,300

11,900

11,500

10,800 

10,400

10,200

9,650

9,320

9,180

9,OQO 

9,070

9,210

9,360

476,890

15,380

1.25

1.45

945,900

Aug.

8,580 

8,240

8,210

8,040

8,380

8,520

8,140

8,110

7,630

*7,370

7,110

6,890 

6,570

6,350

6,070

5,860

5,740

5,570 

5,400

5,170

5,230

5,260 

6,310

6,950

6,570

6,250

5,950

5,710 

5,800

5,830

5,740

207,550

6,695

0.546

0.63

411,700

Sept.

5,590 

5,400

5,290

5,090

5,030

4,870

4,720

4,660

4,560

4,480

4,430

4,400 

4,400

4,380

4,330

4,300

4,180

4,160 

*4, 130

4,060

4,040

4,010 

4,040

4,040

4,040

4,180

4,250

4,250 

4,280

4,290

-

133,880

4,463

0.364

0.41

265,500

Calendar year 1950: Max 56,400 

Water year 1950-51: M$x 57,800

Mln 

Mln

2,400 Mean 11,300 Cfsm 0.921 In- 12.50 Ac -ft 

2,200 Mean 12,190 Cfsm 0.995 In. 15.50 Ac-ft

8,182,000

8,826,000

* Discharge measurement made on this day.

* Expressed In thousands .

a No gage-height record; discharge estimated on basis of weather records and records for station 

at Whltebird.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed as described in note for "a."
220 SALMON RIVER BASIN

Mud Creek near Tamarack, Idaho

Location. La t 45°00', long. 116°21', in sec. 9, T. 19 N., R. IE., on left bank 0,5 mile 

upstream from Little Mud Creek, 8-5- miles northeast of Tamarack, and 5 miles upstream 

from mouth.

Drainage area. 15.8 sq mi.

Records available.--April 1937 to September 1940 (incomplete), September 1945 to September 

1951.

Gage. Water-stage recorder. Altitude of gage is 3,990 ft (by barometer). Prior to Sept. 

~lT8, 1945, staff gage at site 40 ft downstream at datum 1.21 ft higher.

Average discharge. 6 years (1945-51), 18.1 cfs.

Extremes.--Maximum discharge during year, 193 cfs Apr. 14 (gage height, 3.99 ft); maximum 

 gage height, 4.72 ft Mar. 23 (ice jam); minimum discharge, 1.4 cfs Aug. 19-21; minimum

gage height, 2.28 ft Oct. 1-4.

1937-38, 1945-51: Maximum discharge observed, about 300 cfs probably on May 1,

1938 (gage height, 3.34 ft, from floodmark, site and datum then in use); minimum,

probably less than 0.5 cfs during late summer of 1937.

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

which are poor. No diversion or regulation.

Revisions (water years). W 1153: 1948.

Rating tables, water year 195O-51, except periods of lee effect (gage 

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

Oct. 1 to Apr. 13 Apr. 14 to Sept. 30

2.2

2.3

2.4 

2.6 

2.8

1.0

2.3

4.4

10

18

3.0 

3.2 

3.5 

4.0

87

179

2.3

2.4

2.5

2.6

2.7

0.6

1.8

3.9

7.2

12

2.9 

3.1 

3.4 

3.7 

4.0

85

133

189

Discharge, In cubic feet per second, water year October 195O 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

1.9

1.9

1.9

2.0

2.5

*2.9

2.5

2.3

2.3

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2.3

4.9

2.7

2.3

2.3

2 .3

2.2

2.3

2.5

3.8

4.2

10

li

8.2

6.2

104.0

3.35

0.212

0.24

206

Nov.

5.7

BTi" 6 .O

5.2

5.2

4.9

4.7

4.7

4.2

3.5

*4.8

4.7

3.8

3.8

4.O

4.0

4.0

4.O

4.0

3.5

4.0

4.O

3.8

3.8

3.8

4.0

4.2

4.2

4.4

4.8

-

131.1

4.37

0.277

0.31

26C

Dec.

5.0

4.8

5.0

5.5

5.0

5.0

5.2

5.0

5.0

4.9

4.7

4.7

*4.3

4.5

5.0

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

4.5

4.8

5.0

5.0

5.0

5.0

5.0

157.4

5.08

0.322

0.37

312

Jan.

5.0

5.0

5.0

5.0

4.5

3.5

3.5

4.0

4.0

4.0

4.0

4.0

4,0

4.0

4.0

3.5

3.5

3.5

3.5

3.0

3.0

3.0

*2.5

2.5

2.5

2.5

2.5

2.0

2.0

2.5

2.5

108.0

3.48

0.22C

0.25

214

Feb.

2.5

2T7

2.7

3.0

3.0

3.5

4.0

4.5

5.0

6.0

7.0

8.0

7.0

6.0

5.5

5.0

4.8

4.8

4.7

4.6

4.6

4.5

4.4

4.2

4.0

3.9

3.8

3.7

-

-

127.4

4.55

0.288

0.30

253

Mar.

3.6

3.5

3.5

3.5

3.5

3.5

3.5

3.5

*3.2

3.2

3.2

3.2

3.2

3.5

3.7

4.0

4.0

4.5

4.8

5.0

5.5

6.0

7.0

8.0

10

11

13

13

14

14

15

190.1

6.13

0.388

0.45

 377

Apr.

20

31

50

74

112

144

140

144

144

144

136

138

165

176

*172

153

149

147

137

119

97

84

74

70

67

74

84

121

142

116

-

3,424

114

7.22

8.06

6,790

May

94

78

68

66

67

75

90

86

79

72

74

70

57

48

42

38

38

38

34

31

28

26

24

a22

a20

*17

15

15

12

12

11

1,447

46.7

2.96

3.41

2,870

June

11

10

10

10

15

12

17

12

10

8.5

8.1

11

10

8.1

7.2

6.8

6.4

6.0

6.0

*5.7

6.0

5.7

5.7

6.0

6.0

5.4

5.0

4.7

4.7

4.7

-

244.7

8.16

0.516

0.58

485

July

4.4

4.4

4.4

6.0

5.0

4.4

4.2

3.9

3.6

3.2

3.2

2.9

2.7

2.7

2.7

2.7

2.5

2.5

*2.5

2.7

2.7

2.7

2.5

2.5

2.3

2.3

2.1

2.1

» 2.1

2.1

2.0

96.0

3.10

0.196

0.23

190

Aug.

2.1

2.0

1.8

1.7

1.7

1.7

1.7

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.7

*1.5

1.4

1.4

1.4

1.8

2.3

2.0

1.8

1.7

1.8

2.5

2T3

2.0

2.0

56.5

1.82

0.115

0.13

112

Sept.

2.0

2.0

1.8

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

*1.

1.8

2.0

2.0

2.0

2.0

2.1

-

51.4

1.71

0.108

0.12

102

Calendar year 1950: Max 155 Mln - Mean 17.3 Cfsm 1.09 In. 14.82 Ac-ft 12,50O

Water year 195O-51: Max 176 Mln 1.4 Mean 16.8 Cfsm 1.06 In. 14.45 ftc-ft 12,170

Peak discharge (base, 100 cfs). Apr. 14 (8 p.m.) 193 cfs (3.99 ft); Apr. 28 (10:30 p.m.) 153 cfs 

(3.79 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, records for Welser River 

at Tamarack, and stations on nearby streams.

Note.--Stage-discharge relation affected by Ice Nov. 9-11, 15-17, 2O-23, Nov. 27 to Mar. 28 (no 

gage-height record Dec. 15-23, Jan. 17-22, Jan. 28 to Mar. 5, Mar. 7, 8, 1O-22; discharge estimated 

as described under "a").
SALMON RIVER BASIN 221

Little Salmon River at Riggins, Idaho

Location. Lat 45°24'50", long. 116°19'30", in SE^SW^ sec. 15, T. 24 N., R. 1 E., on 

right bank 250 ft upstream from highway bridge, half a mile upstream from mouth, and 

three-quarters of a mile southwest of Riggins.

Drainage area. 576 sq mi.

Records available. February to September 1951.

Sage. Water-stage recorder. Altitude of gage is 1,760 ft (from topographic map).

Extremes. Maximum discharge during period, 3,720 cfs June 15 (gage height, 6.48 ft); minimum, 169 cfs Sept. 24 (gage height, 1.90 ft).

Remarks.--Records good. Diversions for irrigation of about 13,600 acres above station.

Rating table, Feb. 1 to Sept. 30, 1951 (gage height, In feet, 

and discharge, In cubic feet per second)

1.9 

2.2 

2.6 

3.0 

3.5

169

255

400

590

860

4.0 

4.5 

5.0 

6.0 

7.0

1,170

1,540

1,980

3,070

4,520

Discharge, In cubic feet per second, February 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

Total

Mean

Ac- ft

Oct. Nov. Dec. Jan. Feb.

a320

aSSO"

a400 

a420

a450

a460

a480 

aSOO

*530

575

640

728" 734

690

651

625

555

545

505

490

476

445

422 

432

422

388

368

364

.

_

-

13,975

499

27,720

Mar.

380

368

349 

353

342

360

356 

356

364

345

334

342

345

353

396

454

440

414

422

450

481

500

490 

500

545

595

668

690

728

750" 739

14,159

457

28,080

Apr.

766

555

1,170 

1,440

1,930

2,660

2,670 

2,500

2,280

*2,140

2,010

1,950

2,110

2,340

2,360

2,300

2,320

2,420

2,340

2,170

1,900

1,660

1,540 

1,450

1,400

1,480

1,630

1,940

2,210

2,020

-

58,026

1,934

115,100

May

1,760

1,570

1,470 

1,520

1,630

1,940

2,480 

2,600

2,590

2,840

a3,100

a3,010

2,610

2,270

2,090

2,300

*2,720

2,780

2,810

2,810

2,960

*3,110

a5,300 

a3,250

a3,150

a3,070

a3,120

a3,150

a2,680

2,240

1,890

78,820

2,543

156,300

June

1,660

1,520

1,440 

1,430

1,750

1;760

1,710 

1,660

1,590

1,670

1,950

2,330

2,440

a2,580

*a5, 110

3,050

2,790

2,470

2,220

2,120

1,940

1,750

1,630 

1,590

1,480

1,440

1,370

1,340

1,270

1,230

-

56,290

1,876

111,600

July

1,200

1,160

1,130 

1,460

1,330

1,130

1,020 

920

872

822

772

*722

690

662

620

580

545

515

490

468

440

418

392 

376

364

349

334

323

312

302

292

21,010

678

41,670

Aug.

288

575

268 

262

255

252

249 

246

240

236

230

227

227

224

224

221

215

212

207

201

195

5T5

221 

233

227

218

212

243

262

255

243

7,278

235

14,440

Sept.

230

52T

218 

212

207

198

195 

192

195

192

192

192

192

190

187

182

179

179

*177

172

174

174

172 

172

174

179

177

174

174

179

-

5,654

188

11,210

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

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

on nearby streams.
222 SALMON RIVER BASIN 

Salmon River at Whitebird, Idaho

Location.--Lat 45°45', long. 116°20', in sec. 22,'T. 28 N., R. IE., just upstream from 

Whitebird Creek, half a mile downstream from Canfield-Joseph highway bridge and 1 mile 

southwest of Whitebird. Records include flow of Whitebird Creek.

Drainage area. 13,550 sq mi, approximately, includes that of Whitebird Creek. 

Records available. August 1910 to September 1917, October 1919 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,412.65 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1947. Aug. 18, 1910, to Sept. 30, 1917, Oct. 1, 

1919, to Sept. 13, 1920, staff gages at site 600 ft downstream at different datum. 

Sept. 14, 1920, to Jan. 2, 1931, chain gage on highway bridge 200 ft upstream at datum 

10 ft higher.

Average discharge.--39 years, 10,630 cfs.

Extremes. Maximum discharge during year, 69,000 cfs May 28 (gage height, 27.81 ft); minimum, 2,180 cfs Jan. 31 (gage height, 11.12 ft).

1910-17, 1919-51: Maximum discharge, 103,000 cfs June 3, 1948 (gage height, 32.95 

ft); minimum, 1,580 cfs Dec. 11, 1932 (gage height, 10.23 ft), from rating curve extended below 2,200 cfs.

Maximum stage known, about 37.5 ft, present datum, June 1894 (discharge, 120,000 

cfs) .

Remarks. Records excellent. Amount of water diverted above station for irrigation is 

a negligible percentage of total flow.

Revisions (water years). W 753: 1932. W 1043: Drainage area.

Discharge, in cubic feet per second, water year October 1950 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

50

31

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

5,550 

5,550

5,550

5,560

5,550

6,040

6,240

6,120

6,160

6,180

6,020

5,780

5,550

5,440

5^510

5,480

5,590 

6,140

*7,000

6,790

6,340

6,060 

5,860

5,650

5,540

5,880

6,420

7 ,,190

9,380

12.100

11,200

198,560

6,599

0.472

0.54

593,400

Nov.

10. 100 

9,320

8,670

8,240

8,140

8,010

7,990

8,170

7,770

6,980

6,640

6,700

6,890

6,870

6,680

6,520

6,500 

6,680

6,850

6,700

6,600

6,720 

6,850

6,700

6,600

6,600

6,660

6,640

6,500

6.500

-

216,570

7,219

0.555

0.59

429,600

Dec.

6.580 

6,260

6,040

6,100

6,220

6,060

*5, 880

6,160

6,200

6,180

6,260

6,280

6,300

6,120

5,760

5,690

5,880 

5,940

5,740

5,710

5,800

5,690 

5,400

5,420

5,710

5,720

5,480

5,100

4.990

5,340

5,570

181,580

5,851

0.432

0.50

559,800

Jan.

5.500 

5,270

5,080

5,040

5,250

5,040

4,360

3,670

3,670

4,220

4,480

4,480

4,660

4,880

5,020

*5,270

5,440 

5,290

5,100

4,830

4,500

4,380 

4,650

4,840

4,920

4,950

5,010

4,720

5,640

2,600

2.410

145,170

4,618

0.541

0.39

284,000

Feb.

2.420 

5,210

5,750

4,360

4,850

5,190

5,480

5,520

6,200

6,850

8,100

8,900

9.540

8,500

7,120

6,660

6,460 

6,280

6,080

5,900

5,840

5,800 

5,610

5,460

5,500

5,440

5,250

*4,970

_

-

-

164, 820

5,886

0.454

0.45

526,900

Mar.

4,970 

4,900

4,750

4,740

4,840

4,810

4,750

4,660

4,790

4,790

4,630

4.410

4,450

4,790

5,120

5,380

5,570 

5,570

5,100

4,990

5,550

5,720 

6,400

6,220

5,820

6,140

6,770

7.120

6,910

6,720

6,640

167,780

5,412

0.599

0.46

332,800

Apr.

6.680 

6,870

7,640

9,200

11,300

13,800

15, 400

16,500

17,100

17,500

*17,200

16,800

17,500

19,800

22,400

25,500

25,500 

24,800

26.000

25, 400

25,900

21, 800 

19,900

18,700

18, 100

18,100

18, 700

20, 200

23,400

24, 500

545,590

18,180

1.34

1.50

*1,082

May

22,800 

20, 600

19,200

18.600

19,500

22,000

29,800

58, 100

41,000

42,300

46, 500

48,900

46, 500

41,400

56,700

35, 000

57,400 

41,500

46,500

48,900

*49,800

52,000 

57,900

65,800

65, 100

65,100

65,500

67.400

66,300

60,200

55,200

H.,564.9

44,030

3.25

3.70

*2,707

June

46,000 

40, 000

55,600

32, 500

52,100

52,500

51,000

29,800

28, 100

27.100

28, 200

31,300

35, 600

39,500

*45,000

51, 500

55.800 

52,800

49,600

46,900

44, 400

41,600 

58,800

36,800

34,800

32,700

51,200

29,900

28,800

27,900

«,H5.6

57,190

2.74

3.06

*2,213

July

27,100 

26,800

26,500

27,200

28.600

25,900

23,600

21,800

20, 600

19,700

18,900

*18, 300

17,200

16,500

15,500

15, 100

14,500 

13,900

13,300

12,800

12,400

12,000 

11,500

11,000

10, 500

10,200

9,850

9,510

9.410

9,510

9,860

519,120

16,750

1.24

1.42

*1,030

Aug.

9.560 

9,000

8,650

8,550

8,600

8,880

8,830

8,560

8,280

7,990

*7,720

7,480

7,250

6,980

6,750

6,500

6,320 

6,120

5,940

5,740

5.650

5,650 

6,080

6,980

7,510

6,910

6,520

6,380

6,520

6,560

6,320

225,940

7,224

0.553

0.61

444,200

Sept.

6.140 

5,920

5,760

5,610

5,440

5,310

5,210

5,080

4,990

4,900

4,840

,840

,830

,790

,750

,700

,630 

4,560

4,500

*4, 450

4,580

m4,560

4,360

4,580

4,590

4,660

4,540

4,470

145,670

4,856

0.358

0.40

288,900

Calendar year 1950: Max 67,100 Mln 2,660 Mean 12,680 Cfsm 0.936 In. 12.70 Ac-ft 9,180,000

Water year 1950-51 : Max 67,400 Min 2,41O Mean 15,660 Cfsm 1.01 In. 15. 62 Ac-ft 9,892,000

* Discharge measurement made on this day.

* Expressed in thousands.
GRANDE RONDE RIVER BASIN 223

Grande Ronde River near Hilgard, Oreg.

Location.--Lat 45°19', long. 118°16 I , near center of sec. 11, T. 3 S., R. 36 E., on right 

bank half a mile upstream from lower reservoir site of Bureau of Reclamation, threequarters of a mile upstream from Spring Creek, and 3 miles southwest of Hilgard.

Drainage area. 489 sq mi.

Records available. October 1945 to September 1951 in reports of Geological Survey. March 

1937 to September 1941 in reports of State engineer; October 1941 to September 1945 in 

files of State engineer.

Gage.--Water-stage recorder. Datum or gage is 3,058.05 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. Mar. 11 to Dec. 30, 1937, staff gage at site 

half a mile downstream at different datum. Dec. 31, 1937, to Sept. 16, 1946, waterstage recorder at site 800 ft upstream from present site at different datum.

Average discharge.--14 years, 269 cfs.

Extremes. Maximum discharge during year, 2,070 cfs Feb. 12 (gage height, 4.60 ft); minimum, 14 cfs Sept. 20, 21 (gage height, 0.81 ft).

1937-51: Maximum discharge, 3,300 cfs May 28, 1948 (gage height, 5.26 ft); minimum, 

6 cfs Aug. 10, 12-29, Sept. 1-4, 1940.

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

which are poor. No regulation. Diversion for irrigation of about 100 acres above 

station.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

Oct. 1 to Dec. 5 Dec. 5 to Sept. 30

1.2 

1.4 

1.6 

1.9

78

176

0.8 

1.0 

1.5 

2.0

42

150

310

3.0 

4.0 

4.4

800

1,480

1,850

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

30

29

30

33

39

48

42

*42

50

43

37

35

33

32

31

30

32

38

40

34

33

33

32

31

33

37 

45

63

128

119

100

1,382

44.6

2,740

Nov.

86

161

142

119

98

86

*84

98

*84

60

b70

81

63

76

51

74

71

92

81

95

112

109

116

116

149

165 

165

157

135

135

3,131

104

6,210

Dec.

119

100

112

135

165

*220

382

*326

256

232

223

226

205

*196

199

187

184

175

168

162

150

145

158

152

150

140 

132

148

235

334

278

5,994

193

11,890

Jan.

232

256

246

229

214

118

102

b!30

b!50

170

168

162

150

*168

205

196

193

175

165

118

175

*175

148

235

310

342 

342

202

130

b!25

158

5,889

190

11,680

Feb.

180

211

*199

184

184

199

334

670

*974

*1,370

*1.790

*1,630

1,060

812

645

520

440

378

270

314

263

242

196

187

208

107 

bllO

125

-

-

13,802

493

27,380

Mar.

b!20

b!08

95

bllO

123

114

111

114

107

82

89

102

107

123

542

908

752

585

*580

758

*932

788

660

740

992

*1.160 

1,100

*962

944

796

692

15,396

497

30,540

Apr.

716

884

1,140

1,470

*1.620

1,550

1,500

1,480

*1,420

1,300

1,160

1,120

1,230

1,440

1,340

1,220

1,190

1,190

1,120

968

812

710

625

565

520

505

515

625

704

645

-

31,284

1,043

62,050

May

565

*535

500

520

545

600

758

*764

740

752

980

1.050

938

860

782

770

794

770

722

665

630

605

635

*620

560

520 

485

435

382

382

506

20,170

651

40,010

June

274

252

242

235

266

298

*294

290

260

235

223

232

229

211

199

190

175

162

ISO

142

*135

128

123

116

123

111 

102

95

89

82

-

5,663

189

11,230

July

78

76

74

70

72

78

*70

64

60

56

56

51

47

44

44

42

47

40

39

39

37

36

34

*32

31

28 

26

25

25

25

ZZ_

1,468

47.4

2,910

Aug.

22

22

21

20

20

a!8

a!8

a!8

a!8

a!8

a!8

a!8

a!8

al8

a!8

a!7

a!6

*16

16

16

17

*18

21

21

18

18

18

18

21

28

28

592

19.1

1,170

Sept.

25

23

22

21

20

20

18

18

18

17

17

17

17

17

17

*17

16

16

16

ii

14

16

16

16

17

17 

18

20

21

22

-

543

18.1

1,080

Calendar year 1950: Max 1,650 Min 21 Mean 339 Ac-i't 245,200

Water year 1950-51: Max 1,780 Min 14 Mean 289 Ac-ft 208,900

Peak discharge (base. 1.500 efs).--Peb. 12 (l a.m.) 2,070 cfs (4.60 ft); Apr. 4 (12 p.m.) 1,810 efs (4.36 ft). 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station at LaGrande.

b Stage-discharge relation affected by ice.
224 GRANDE RONDE RIVER BASIN

Grande Ronde River at La Grande, Oreg.

Location. Lat 45°21', long. 118°08 I , in sec. 36, T. 2 S., R. 37 E., on left bank 2 miles 

northwest of La Grande and 4 miles downstream from Fivepoint Creek.

Drainage area. 678 sq mi.

Records available. November 1903 to September 1915, February 1918 to June 1923, October 

1925 to September 1951. Published as "at Hilgard" 1903-15.

Gage. Water-stage recorder. Datum of gage is 2,831.25 ft above mean sea level, datum of 

1929. Nov. 6, 1903, to Sept. 30, 1915, several staff gages at site 4 miles upstream, just 

downstream from Fivepoint Creek, at various datums. Feb. 16, 1918, to Nov. 24, 1931, 

several staff gages at site 1 mile downstream from present site at various datums.

Average discharge.--37 years (1905-9, 1910-11, 1912-15, 1918-20, 1921-22, 1925-51), 361 

cfs.

Extremes. Maximum discharge during year, 3,030 cfs Feb. 11 (gage height, 6.01 ft); minimum, 16 cfs Aug. 20, 21 (gage height, 1.53 ft).

1903-15, 1918-23, 1925-51: Maximum discharge, 8,880 cfs Mar. 18, 1932 (gage height, 

8.90 ft); minimum, 3.9 cfs Aug. 26, 1940 (gage height, 1.23 ft).

Remarks.--Records good except those for periods of ice effect, which are poor. Some discharge measurements made at cable 3 miles upstream from station. Diversions for irrigation of about 400 acres above station.

Revisions (water years). W 768: 1933.

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

33

31

33

34

42

51

49

*44

53

51

42

37

36

34

34

34

36

41

51

42

39

39

37

36

36

44 

47

62

119

124

121

1,512

48.8

3,000

Nov.

108

169

142

123

102

92

*88

94

*92

66

b73

75

64

64

53

64

66

84

79

77

100

97

104

107

134

157 

163

157

142

142

-

3,078

103

6,110

Dec.

128

112

114

139

175

242

435

*395

335

312

312

322

290

270

266

250

242

230

218

210

196

186

230

242

234

218 

196

210

308

485

435

7,937

256

15,740

Jan,

362

385

358

335

304

200

165

blSO

b220

262

234

226

200

*222

270

282

282

262

242

172

262

254

203

294

425

470 

500

340

214

b200

270

8,595

277

17,050

Feb.

b290

317

*278

254

254

262

49O

1,040

*1,390

*2,030

*2.650

2,400

1,520

1,160

945

764

668

596

445

490

430

380

312

299

330

182 

blSO"

203

_

-

20,549

734

40,760

Mar.

blSO

b!60

145

b!60

b!90

200

186

175

169

131

134

157

151

178

812

1,380

1,070

819

*826

1,140

*1,430

1,170

994

1,110

1,510

*1.770 

1,670

1,400

1,380

1,170

1,040

23,007

742

45,630

Apr.

1,06O

1,360

1,720

2,110

*2.400

2,300

2,220

2,140

*2,040

1,880

1,660

1,610

1,760

2,040

1,910

1,730

1,690

1,680

1,590

1,370

1,160

1,010

900

816

767

742

754

942

1,100

998

-

45,459

1,515

90,170

May

893

*802

748

774

816

886

1,120

*1,100

1,040

1,060

1,370

1.420

1,260

1,140

1,040

1,000

1,020

991

921

858

809

781

809

*802

730

682 

628

564

503

445

402

27,414

884

54,370

June

370

339

317

317

366

402

*398

402

362

326

305

313

309

284

268

251

228

212

197

183

*172

159

149

142

149

136 

124

110

105

100

-

7,495

250

14,870

July

90

88

83

81

83

92

88

77

*72

70

68

64

60

53

51

50

51

46

42

40

39

36

35

*32

30

28 

25

24

24

23

22

1,667

53.8

3,310

Aug.

22

21

2O

20

20

20

20

20

20

20

20

20

20

20

20

19

19

*18

17

17

16

*17

18

19

19

18 

18

17

19

24

28

606

19.5

1,200

Sept.

~Z2 25

21

20

20

20

19

18

18

18

18

19

19

19

18

*18

18

18

18

17.

17

18

18

18

19

19 

20

20

21

23

-

576

19.2

1,140

Calendar year 1950: Max 2,440 Mln 22 Mean 476 Ac-ft 344,400

Water year 1950-51: Max 2,630 Min 16 Mean 405 Ac-ft 293,400

Peak discharge (base. 1.900 cfs).--Feb. 11 (11:30 p.m.) 3,030 cfs (6.01 ft); Mar. 26 (10:30 p.m.) 

2,120 cfs (5.21 ft); Apr. 5 (3 a.m.) 2,660 ofs (5.57 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
GRANDE RONDE RIVER BASIN 225

Catherine Creek near Union, Oreg.

Location.--Lat 45°09i, long. 117°47', In SE£ sec. 2, T t 5 S., R. 40 E., on right bank 

a miles downstream from Little Catherine Creek and 6 miles southeast of Union.

Drainage area. 105 sq ml.

Records available. May 1906 to May 1907 (gage heights only), August 1911 to December 

1912, March to September 1915, February 1918 to August 1919, October 1925 to September 

1951.

Gage.- Water-stage recorder. Datum of gage Is 3,082.11 ft above mean sea level, datum of 

1929. Prior to Nov. 27, 1938, staff gages at several sites within 2j miles of present 

site at various daturns. Nov. 27, 1938, to May 17, 1939, water-stage recorder at site 

400 ft downstream from present site at different datum.

Average discharge.--27 years (1911-12, 1918-19, 1925-44, 1945-51), 119 cfs.

Extremes. Maximum discharge during year, 690 cfs May 11 (gage height, 2.96 ft); maximum 

gage height, 3.76 ft Feb. 2 (backwater from ice); minimum discharge, 18 cfs Jan. 28 

(gage height, 0.50 ft) but may have been less during periods of ice effect.

1906-7, 1911-12, 1915, 1918-19, 1925-51: Maximum discharge, 1,740 cfs May 27, 1948 

(gage height, 4.57 ft); minimum recorded, 4 cfs Nov. 26, 27, 1930.

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

which are poor. Diversions above station for irrigation of about 200 acres; some water 

diverted into Big Creek, in Powder River basin.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

1.0

1.5

65

155

2.0 

2.5 

3.0

290

470

710

Discharge, In cubic feet per second, water year October 195O 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

Total

Mean

Ac- ft

Oct.

29

30

30

34

16

42

37

*39

36

32

31

30

30

29

28

27

31

42

32

30

29

29

28

28

30

40

38

37

41

38

36

1,039

33.5

2,060

Nov.

39

46

49

52

49

46

*45

45

33

b30

b33

37

35

34

36

33

33

35

32

34

33

33

33

34

41

40

41

40

38

38

~

1,147

38.2

2,280

Dec.

37

31

36

41

38

40

39

37

*37

*45

46

49

46

45

43

41

40

39

38

38

37

38

60

60

57

52

51

49

51

51

44

1,356

43.7

2,690

Jan.

49

48

45

44

42

b30

b25

b30

b35

b30

b32

b35

39

38

37

38

38

b35

b32

b30

b34

*b37

b40

b45

48

40

39

b25

b22

b20

b25

1,107

35.7

2,200

Feb.

b27

b30

b33

b35

b38

*b42

b50

b60

b80

blOO

131

*129

113

99

89

79

73

68

63

59

58

54

54

52

51

b45

b40

b38

-

-

-

1,790

63.9

3,550

Mar.

b35

b32

b30

b35

b38

b40

b40

b40

b35

b30

b32

b34

b35

37

60

68

65

63

*65

79

100

104

97

95

111

*123

133

125

123

119

111

2,134

68.9

4, 230

Apr.

117

137

183

234

272

*299

308

311

311

302

290

305

347

402

394

386

492

410

386

338

293

266

251

237

237

251

266

354

378

329

-

8,996

300

17,840

May

293

*266

263

281

296

352

595

*545

510

525

625

575

494

438

398

402

418

422

414

414

418

442

490

*474

450

426

434

410

338

299

263

12,970

418

25,730

June

237

223

215

207

234

209

*204

194

191

186

196

223

223

231

257

257

240

a220

a200

al85

*178

171

160

157

146

137

131

127

119

MS

5,773

192

11,450

July

109

106

104

109

104

102

90

61

*79

76

72

69

69

66

65

61

59

57

54

54

53

52

50

*49

48

45

44

43

42

40

3£

2,091

67.5

4,150

Aug.

39

38

37

*36

36

35

35

34

34

33

33

32

31

32

31

31

30

30

29

28

28

*29

31

28

28

27

27

44

48

38

34

1,026

33.1

2,040

Sept.

31

30

29

29

28

27

27

27

27

26

26

25

25

25

24

*24

23

*23

23

22

22

22

23

23

24

24

24

24

24

31

-

762

25.4

1,510

Calendar year 1950 : Max 530 Min 25 Mean 115 Ac-i't 83,060

Water year 1950-51 : Max 625 Mln 20 Mean 110 Ac-ft 79,730

Peak discharge (base. 500 cfs).--May 11 (11 a.m.) 690 cfs (2.96 ft). 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for Grande 

Ronde River near Hilgard and Wolf Creek near North Powder. 

b Stage-discharge relation affected by ice.
226 GRANDE RONDE RIVER BASIN

East Pork Wallowa River near Joseph, Oreg.

Location.--Lat 45°16>, long. 117°13', in SE£ sec. 29, T. 3 E., R. 45 E., a quarter of a 

mile upstream from confluence with West Pork, 1 mile upstream from Wallowa Lake, and 

6 miles south of Joseph.

Drainage area. 10 sq mi, approximately. 

Records available. July 1924 to September 1951.

Gage. Water-stage recorder and concrete control. Datum of gage is 4,517.69 ft above mean 

sea level, datum of 1929. Prior to Apr. 8, 1950, staff gage at same site and datum.

Average discharge. 27 years, 20.2 cfs (including flow of Wallowa Palls powerplant tailraoe).

Extremes. Maximum discharge during year, 41 cfs July 4 (gage height, 2.70 ft); minimum, 

0.2 cfs Jan. 28, 29 (gage height, 1.42 ft).

1924-51: Maximum discharge, 300 cfs July 25, 1937 (gage height, 3.63 ft, from floodmark), computed on basis of rating curve extended above 80 cfs and unpublished records 

of storage in Wallowa Lake Reservoir; minimum, 0.1 cfs Dec. 7, 1929, Nov. 1, 6, 1935

Remarks.--Records good except those for periods of ice effect or shifting control, which 

are fair. Wallowa Falls powerplant of Pacific Power & Light Co. diverts water 1 mile 

above station.

Rating table, water year 195O-51, except periods of ice effect or 

shifting control (gage height, in feet, and discharge in cubic 

feet per second)

1.4

1.5

1.6

1.7

1.9 

2.2 

2.6

3.£

Discharge, in cubic feet per second, water year October 195O 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

Total

Mean

Ae-ft

Oct.

1.3

1.1

1.6

4.9

7.2

3.8

3.4

3.6

2.5

1.6

2.6

1.5

.9

.7

.6

.7

2.9

3.4

1.3

2.6

2.4

.8

.5

*.7

2.2

1.7

2.5

1O

20

15

1O

114.0

3.68

226

Nov.

8.0

7.0

6.5

4.5

3.8

4.5

3.3

2.9

3.2

6.O

3.2

2.3

2.0

2.8

i.6

2.3

5.3

4.9

4.0

2.6

2.5

2.2

2.2

b3

b3

2.3

1.9

2.0

2.0

2.O

-

103.8

3.46

206

Dec.

1.9

b2

b2

2.O

1.9

2.5

1.7

2.5

2.3

1.9

1.9

1.9

*1.3

2.0

2.2

1.7

1.2

1.3

1.3

1.5

1.5

1.2

2.3

1.3

.U1

1.3

1.2

1.6

1.3

1.5

1.1

52.4

1.69

104

Jan.

1.3

1.1-

8.2

3.8

bl.S

bl.5

bl.S

bl

bl

bl.S

b5

b3

b2

b2.5

b2

bl

bl

.8

b.8

b.8

bl.S

bl

bl.S

.5

1.3

b.4

b.4

.4

b.4

b.4

*b.4

49.5

1.60

98

Feb.

bO.6

b.8

b.7

b.5

bl

b.5

bl

bl.S

b2.5

b3

b2.5

b2

bl

bl

b.9

b.7

b.8

b.7

b.6

b.8

b.9

b.8

b.7

b.6

b.7

b.5

b.4

b.5

_

_

-

28.2

1.01

56

Mar.

bO.7

b.6

b.5

b.7

b.8

b.7

b.6

b.6

b.7

b.6

b.5

b.7

b.7

b.6

b.8

b.7

b.6

b.7

b.6

b.6

b.9

b.6

b.6

b.6

.8

.8

b.6

b.6

b.6

*b.6

b.8

20.5

0.66

41

Apr.

1.0

1.1

1.3

1.7

b2.5

b3

2.5

2.5

2.6

2.5

b3

b3

b3.5

b4

b4.5

6.2

7.5

7.8

7.2

6.0

5.6

b4.5

b4.5

4.2

4.7

5.6

6.2

7.5

6.5

4.7

-

127.4

4.25

253

May

4.0

4.5

4.7

6.0

6.0

9.7

19

16

17

21

22

19

15

15

15

17

18

*19

19

19

22

25

27

27

27

30

31

32

30

29

28

593.9

19.2

1.18O

June

25

24

24

25

23

22

21

21

21

23

27

29

29

29

32

32

34

31

34

32

32

32

33

34

32

31

30

29

29

29

-

854

28.5

1,690

July

29

29

29

36

34

32

31

3O

3O

29

27

27

27

27

27

27

26

26

25

24

22

20

19

*19

19

17

17

16

16

15

23

775

25.0

1,540

Aug.

25

25

25

25

23

17

11

1O

9.4

8.8

8.2

7.8

7.0

6.5

5.8

5.8

5.1

4.7

4.2

3.8

3.8

4.0

4.2

3.6

3.4

3.2

3^2

*6.5

7.2

7.2

7.0

291.2

9.39

578

Sept.

7.8

7.2

6.0

4.2

4.9

5.1

3.4

4.9

3.0

2.8

3.4

3.8

3.2

3.2

2.6

3.0

3.2

3.2

4.5

3.4

3.8

3.0

2.2

2.6

2.8

2.3

2.3

2.6

2.0

3.4

-

109.8

3.66

218

Adjusted for diversion by Wallowa Falls powerplant tailrace

Mean

Cfstn

In.

Ac-ft

17.6

1.83

2.11

1,080

16.3

1.70

1.90

972

13.8

1.44

1.65

846

12.5

1.30

1.50

767

11.3

1.18

1.23

628

10.6

1.10

1.28

655

14.8

1.54

1.71

878

30.1

3.14

3.61

1,850

40.1

4.18

4.66

2,380

38.6

4.02

4.63

2,370

21.1

2.20

2.53

1,3OO

16.8

1.75

1.95

999

Calendar year 195O: Max 79 

Water year 1950-51: Max 36

Min O.4 Mean 9.47 Ac-ft 6,870 

Min 0.4 Mean 8.55 Ac-ft 6,190

Adjusted

Calendar year 1950: Mean 22. O 

Water year 1950-51: Mean 20.3

Cfstn 2.29 In. 31. 09 Ac-ft 15,92O 

Cfstn 2.11 In. 28.76 Ac-ft 14,73O

Discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Note.--Shifting-control method used Oct. 1-5, Oct. 29 to Jan. 3, Aug. 28 to Sept. 30.
GRANDE RONDE RIVER BASIN 227

Wallowa Palls powerplant tallrace near Joseph, Oreg.

Location.--Lat 45°16 I , long. 117°13', in SE£ sec. 29, T. 3 S., R. 45 E., on right bank a 

quarter of a mile upstream from mouth and 6 miles south of Joseph.

Records available.--August 1924 to September 1951. Prior to October 1925, published as 

Enterprise Electric Co.'s tailrace near Joseph.

Gage. Water-stage recorder and sharp-crested weir. Datum of gage is 4,624.79 ft above 

mean sea level, datum of 1929. Prior to Apr. 10, 1950, staff gage at same site and 

datum.

Average discharge.--27 years, 8.39 cfs.

Extremes.--1924-51: Maximum daily discharge, 17 cfs Aug. 19, 20, 1949, June 22, 1950; 

no flow at times.

Remarks. Records fair. Plow regulated for impulse wheel in powerhouse. Water diverted 

at dam on East Pork Wallowa River into conduit 1 mile upstream from powerhouse and 

discharged into West Fork a quarter of a mile below station.

Rating tables, water'year 1950-51 (EaBe height, in feet, 

and discharge, in cubic feet per second)

Oct. 1-27, 

July 19 to Sept. 30

2.3

3.8

6.0

12

18

Oct. 28 to July 18

0.3 1.7

.5 4.6

.6 7.2

.8 14

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

14

14

14

15

14

15

15

15

15

15

13

14

14

15

14

14

14

15

15

12

13

15

15

*14

14

15

13

8.7

14

12

12

431.7

13.9

856

Nov.

12

12

12

11

14

12

14

14

12

13

14

14

14

13

12

11

TT

11

12

13

13

13

13

13

13

14

14

13

13

13

-

386

12.9

766

Dec.

12

12

13

13

13

12

13

11

12

13

13

12

*12

12

1}

12

12

12

12

12

12

13

12

12

12

11

12

12

12

11

12

374

12.1

742

Jan.

12

11

4.5

9.7

12

12

12

11

12

11

11

11

12

11

8.8

10

11

12

11

11

11

12

12

12

11

11

11

11

11

10

*9.4

337.4

10.9

669

Feb.

8.4

9.4

9.7

10

10

11

11

10

11

11

11

11

11

10

10

10

1111

11

11

9.7

10

10

10

10

10

10

10

-

-

-

288.2

10.3

572

Mar.

10

10

1O

11

11

11

10

10

10

10

10

10

10

9.7

9.7

9.7

10

10

10

10

9.7

9.7

9.

9.

9.

9.

9.

9.

9.

*11

9.4

309.5

9.93

614

Apr.

9.4

9.4

9.4

9.4

9.1

9.1

10

10

10

10

10

9.7

9.7

11

11

11

11

11

11

11

11

11

11

11

12

11

11

11

12

12

-

315.2

10.5

625

May

12

12

12

13

11

13

12

11

7.2

8.1

9.7

12

11

11

11

9.4

10

*10

12

13

11

9.2

11

11

11

8.8

13

11

10

10

11

338.4

10.9

671

June

10

12

13

11

11

12

11

12

13

13

6.8

3.6

8.4

12

12

11

10

12

13

13

13

9.4

14

14

13

12

13

13

14

14

-

349.2

11.6

693

July

14

13

14

14

14

13

13

14

14

13

13

14

14

14

14

13

13

13

15

15

15

15

15

*15

M

15

14

13

14

11

3.2

430.2

13.6

833

Aug.

0

0

0

1.2

2.2

9.5

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

15

*T4

14

14

14

14

14

13

362.9

11.7

720

Sept.

11

13

13

14

14

13

14

13

14

14

14

13

14

13

14

13

13

13

11

13

12

13

14

13

13

13

13

13

13

13

-

394

13.1

781

Calendar year 1950: Max 17 Mln 8.7 Mean 12.5 Ac-ft 9,050

Water year 1950-51; Max 16 Mln 0 Mean 11.8 Ac-ft 8,540

Discharge measurement made on this day.
228 GRANDE RONDE RIVER BASIN

Wallowa Lake near Joseph, Oreg.

Location. Lat 45°20', long. 117°14', in N^ sec. 5, T. 3 S. , R. 45 E. , on trash rack 

structure near west end of Wallowa Lake Dam and three-quarters -of a mile south of 

Joseph, Oreg.

Drainage area. 52 sq mi, approximately.

Records available.--November 1903 to July 1906 (gage heights only), January 1912 to March 

1914 and May to September 1915 (gage heights and change in contents only), and October 

1950 to September 1951 in reports of Geological Survey. October 1925 to September 1941 

in reports of State engineer. October 1941 to September 1950 in files of State engineer. November 1903 to March 1905 published as Wallowa River at Joseph. Change in 

contents for January 1912 to March 1914 and May to September 1915 published with records for Wallowa River at Joseph.

Gage.--Staff gage read once daily. Datum of gage is 4,355.66 ft above mean sea level, 

Saturn of 1989. Prior to Aug. 7, 1929, staff gages at several sites within 600 ft of 

present site at various datums.

Extreme s. Maximum contents observed during year, 25,560 acre-ft May 22, 23 (gage height, 

16.30 ft); minimum observed, 6,190 acre-ft Aug. 25-27 (gage height, 4.00 ft).

1925-51: Maximum contents observed, 45,580 acre-ft July 14-19, 1938, May 8, 9, 

1939 (gage height, 28.50 ft); minimum observed, 4,790 acre-ft Oct. 10, 1929 (gage 

height, 3.10 ft).

Remarks.--Reservoir is formed by concrete dam. Capacity, 42,750 acre-ft between gage 

heights 0 ft (sill of outlet gates) and 26.8 ft (spillway crest). About 5,300 acre-ft 

dead storage above outlet gates since outlet channel is about 3.4 ft above outlet 

gates. Dead storage below outlet gates not known. Records are based on capacities 

above outlet gates.

Monthly gage height and contents, water year October 1950 to September 1951

Date

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

Calendar year 1950. .....

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

Watp" year 195O-51 ......

Gage height 

(feetj

12.80

-

4.80

-

Contends 

(acre-feet)

19,970

-

7,430

-

Change in contents 

during month 

(acre-feet)

_

+2,680

+1,270

+7,870

-1,270

-4,620

+620

-6,160
GRANDE RONDE RIVER BASIN 229

Wallowa River at Joseph, Oreg.

Location. Lat 45°20', long. 117 0 14', in NW£ sec. 5, T. 3 S., R. 45 E., on left bank

1,°00 ft downstream from Wallowa Lake dam, and three-quarters of a mile south of Joseph.

Drainage area.--52 sq mi, approximately.

Records available.--November 1903 to August 1907, June 1908 to March 1914, May to

September 1915, and October 1950 to September 1951 in reports of Geological Survey. 

November 1926 to September 1936 In reports of State engineer. October 1936 to September 1950 in files of State engineer.

Gage.--Water-stage recorder. Datum of gage is 4,326.86 ft above mean sea level, datum of 

1929. Nov. 12, 1903, to Sept. 25, 1915, staff gages at several sites at lake outlet 

or near present gage at various daturas.

Average discharge.--24 years (1927-51), 85.0 cfs.

Extremes.--Maximum discharge during year, 530 cfs June 30 (gage height, 3.50 ft)- minimum, 2 cfs Mar. 13 (gage height, 0.34 ft).

1903-15, 1927-51: Maximum discharge observed, 850 cfs June 12, 13, 1912; no flow 

at times.

Remarks. Records good except those below 20 cfs, which are poor. Flow regulated by 

Wallowa Lake (see p.228). Diversions above station by Silver Lake Canal (see p.23l) 

and Joseph powerplant (see p. 230). City of Joseph diverts less than 1 cfs from Wallowa 

Lake for municipal supply.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.4 

.5 

.7

1.0

Oct. 1 to June 30

3 1.5 73

5 2.0 143

12 2.5 240

28 3.0 370

3.5 530

July 1 to Sept. 30

0.9 

1.1 

1.5 

2.0

18

63

133

2.5

3.0 

3.5

240

370

530

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

20

20

20

20

20

20

20

20

20

20

20

20

20

20

11

21

17

18

18

18

18

18

18

*17

*16

16

16

16

16

17

16

577

18.6

1,140

Nov.

16

17

17

18

18

18

18

18

18

18

18

18

18

18

18

19

79

19

19

19

19

19

19

19

19

19

19

16

15

15

-

540

18.0

1,070

Dec.

15

15

14

T4

14

14

15

15

15

15

15

15

*15

15

15

15

15

15

15

15

15

15

15

15

15

14

16

T6

16

16

16

465

15.0

922

Jan.

16

16

16

16

16

16

17

17

17

17

17

16

16

16

16

17

18

18

17

16

16

8

4

4

4

4

4

6

8

8

9

406

13.1

805

Feb.

10

*11

11

11

11

11

11

11

11

10

10

10

10

10

10

10

10

10

10

*1

9

9

9

9

9

9

9

9

-

-

-

279

10.0

553

Mar.

9

9

9

9

9

10

10

10

11

12

13

10

4

9

9

9

9

9

9

9

9

9

8

8

8

8

8

8

8

*8

8

278

9.0

551

Apr.

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

7

*7

7

7

8

9

14

27

-

262

8.7

520

May

29

27

41

32

16

16

16

79

108

120

123

94

71

80

65

58

60

42

54

83

114

176

320

364

382

382

376

367

367

373

358

4,793

155

9,510

June

298

216

176

154

180

*198

206

178

163

156

150

148

T48

148

*148

148

150

169

290

400

460

466

466

463

481

484

502

498

490

466

-

8,600

287

17,060

July

518

457

391

320

355

340

310

300

270

162

104

105

120

104

98

98

92

114

150

252

272

268

278

298

343

373

*406

388

370

349

335

8,340

269

16,540

Aug.

"SB'S 364

238

188

165

148

142

133

130

123

114

105

106

106

108

99

96

80

67

62

62

57

49

48

48

48

48

48

*52

53

53

3,425

110

6,790

Sept.

53

50

36

24

22

21

IT

21

22

22

22

22

23

22

23

23

24

24

24

24

25

25

23

24

24

24

24

24

23

22

-

761

25.4

1,510

Calendar year 1950: Max 454 Min 4 Mean 64.7 Ac-i't 46,810

Water year 1950-51: Max 518 Min 4 Mean 78.7 Ac-ft 56,970

Discharge measurement made on this day.
230 GRANDE RONDE RIVER BASIN

Joseph powerplant tailrace at Joseph, Oreg.

Location. Lat 45°21', long. 117° 14", in NE£ sec. 31, T. 2 S., R. 45 E., in powerhouse 

at Joseph.

Records available. October 1950 to September 1951 In reports of Geological Survey. November 1929 to September 1941 in reports of State engineer, and October 1941 to September 1950 in files of State engineer.

Gage. Water-stage recorder. Datum of gage is 4,188.26 ft above mean sea level, datum of 

T929, supplementary adjustment of 1947. Prior to Oct. 1, 1943, water-stage recorder 

at present site at different datum. Oct. 1, 1943, to Sept. 30, 1944, water-stage 

recorder at present site at datum 0.12 ft higher.

Average discharge. 21 years (1930-51), 16.1 cfs.

Extremes. 1929-51: Maximum daily discharge, 98 cfs June 12, 1948; no flow at times.

Remarks. Records fair except those below 25 cfs and those for periods of no gage-height 

record, which are poor. Diurnal fluctuation CF jed by powerplant operation. Water 

diverted at Wallowa Lake dam (see p.228 ) returned to Wallowa River Just below this 

station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.3

.5

.7

1.0

2.0

31

110

Discharge, in cubic feet per second, water year October 1950 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

£8

29

30

31

Total

Mean

Ac- ft

Oct.

40

31

29

29

32

24

38

24

24

24

32

31

27

35

31

30

30

43

32

34

30

31

32

*24

*25

2Z

33

26

36

33

30

942

30.4

1,870

Nov.

32

24

27

32

25

30

34

£5

44

39

39

30

33

31

32

53

55

37

42

39

24

25

45

22

51

41

32

28

26

24

-

1,016

33.9

2,020

Dec.

£9

32

42

26

27

36

30

29

34

44

32

*26

33

38

32

44

45

40

*24

34

34

37

48

59

54

48

30

39

40

59

69

1,194

38.5

2,370

Jan.

59

49

65

50

44

65

78

63

*45

64

49

44

59

74

69

71

50

42

44

67

80

67

47

45

48

43

68

82

79

78

79

1,867

60.2

3,700

Feb.

79

W

55

77

59

*47

67

55

44

56

73

51

50

40

45

44

67

62

67

*_28

38

53

49

59

79

63

48

40

_

-

1,555

55.5

3,080

Mar.

33

2863-

83

TT

31

41

45

32

55

81

42

37

37

36

34

58

79

49

33

44

32

35

45

78

34

33

38

41

*34

68

1,426

46.0

2,830

Apr.

79

47

32

39

33

49

48

78

39

51

a39

a39

a39

a54

a79

a43

31

37

45

52

50

80

53

*43

31

40

38

37

73

31

-

1,409

47.0

2,790

May

23

15

4

a 10

a30

a40

a60

83

83

82

81

83

84

85

*84

83

83

84

84

83

83

83

84

77

86

87

M

87

84

85

71

2,177

70.2

4,320

June

77

84

84

82

79

*75

68

67

69

81

71

67

65

51

55

69

67

61

*39

55

50

51

72

57

51

50

48

47

51

76

-

1,914

63.8

3,800

July

70

59

49

68

.42

42

50

64

51

44

45

51

66

64

76

56

*63

53

58

52

62

78

59

55

59

64

83

81

84

79

83

1,910

61.6

3,790

Aug.

82

83

82

77

71

87

75

69

49

*47

44

44

31

28

19

24

23

25

26

27

24

24

22

20

17

16

17

18

*23

27

26

1,247

40.2

2,470

Sept.

25

24

24

23

22

21

20

20

20

21

16

18

12

17

18

15

18

11

18

18

18

17

33

19

21

19

20

27

30

27

-

612

20.4

1,210

Calendar year 1950: Max 78 Min 1.7 Mean 46.1 Ac-ft 33,350

Water year 1950-51: Max 87 Mln 4 Mean 47.3 Ac-ft 34,250

* Discharge measurement made on this day.

a No gage-height record; discharge estimated by averaging the discharge for each day of the week 

for 5 weeks before and 1 week after period of no record, or discharge interpolated.
GRANDE RONDE RIVER BASIN 231

Silver Lake Canal at Joseph, Oreg.

Location. Lat 45°20', long. 117°14 I , in NW^ sec. 5, T. 3 S. , R. 45 E., on left bank 800 

ft downstream from Wallowa Lake Dam and half a mile south of Joseph.

Records available. July to December 1905 (gage heights and discharge measurements only). 

May to September 1915 and October 1950 to September 1951 in reports of Geological Survey. Published as Silver Lake ditch near Joseph 1905 and 1915. June to August 1915 

(monthly discharge only) and November 1926 to September 1941 in reports of State engineer. October 1941 to September 1950 in files of State engineer.

Gage.--Water-stage recorder. Datum of gage is 4,352.62 ft above mean sea level, datum of 

1929. Prior to Sept. 4, 1915, staff gage at site a quarter of a mile downstream at 

different datum.

Average discharge.--24 years (1927-51), 21.1 cfs.

Extremes. 1915. 1926-51: Maximum daily discharge, 139 cfs Aug. 2, 1947; no flow at times 

each year.

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

Canal diverts at Wallowa Lake Dam. Water used for irrigation of lands east of Joesph.

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

18

18

17

17

17

18

18

18

18

18

18

18

18

18

18

18

18

a!9

aT5

a!9

al9

a!9

a!2

*8.6

*8.8

8.8

8.8

8.6

8.6

8.6

6.0

476.8

15.4

946

Nov.

¥74" 3.5

 erz

8.2

8.0

8.0

8.0

.5

.5

.5

.5

.5

.5

.5

.3

.3

.1

.9

.9

.1

.1

.3

.3

.3

.1

.1

.3

.3

.1

.3

-

219.6

7.32

436

Dec.

.1

.1

.1

.1

.1

.1

.1

.3

.3

.3

*~.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.1

i 9

S75

.1

.1

226.7

7.31

450

Jan.

6.9

7.1

a7.4

a7.1

a6.9

a6.9

a6.6

a6. 6

^74" 6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.6

6.6

6.4

6.4

6.4

203.1

6.55

403

Feb.

6.4

*6.4

6.2

6.2

6.0

6.0

6.0

6.2

6.6

7.1

6.9

6.9

6.9

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

6.6

6.6

_

-

182.8

6.53

363

Mar.

S76~ 6.6

6.6

6.6

6.6

6.6

6.6

6.6

5.2

3.8

2.2

T78" 1.8

1.8

1.9

2.0

3.0

3.7

3.8

3.8

3.7

3.7

3.8

3.8

3.8

3.9

3.9

3.9

3.9

3.9

3.8

129.7

4.18

257

Apr.

3.8

3.8

3.8

3.7

3.7

3.7

3.8

3.8

3.8

3.8

5.6

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

2.4

0

TJ

0

0

1.8

5.7

5.7

5.9

-

101.0

3.37

200

May

5.9

S79

5.9

6.1

6.1

6.1

8.6

*11

11

11

11

11

11

10

*12

12

21

25

25

25

30

37

48

54

57

57

57

46

17

61

73

777.6

25.1

1,540

June

83

87

89

91

73

*102

99

87

106

106

102

94

91

91

*87

79

71

62

*59

S5

73

78

85

87

95

102

105

109 TOT

103

-

2,662

88.7

5,280

July

iio

TU8

106

98

88

76

73

69

65

65

59

59

59

60

52

50

*M

61

*62

62

66

66

68

78

72

70

68

65

66

74

72

2,205

71.1

4,370

Aug.

88

89

91

94 55

91

92

91

87

*82

78

73

65

56

50

39

39

37

33

32

29

28

35

33

34

30

28

26

*20

*17

aTS

1,695

54.7

3,360

Sept.

a!9

a20

a21

21

17

16

16

16

15

14

*14

14

14

14

13

13

13

13

13

13

13

13

10

6.7

6.5

6.7

6.7

6.5

6.5

6.5

-

391.1

13.0

776

Calendar year 1950 : Max 110 Mln 0 Mean 23.6 Ac-ft 17,060

Water year 1950-51: Max 110 Mln o Mean 25.4 Ac-ft 18,380

* Discharge measurement made on this day.

a No gage-height record; discharge Interpolated, or estimated from recorded range In stage and observer's notes when flow was changed.
232 GRANDE RONDE RIVER BASIN 

Hurricane Creek near Joseph, Oreg

Location. Lat 45°20', long. 117°18',in NE£ sec. 3,.T. 3 S., R. 44 E., on left bank 350 ft 

upstream from intake of Moonshine ditch and 3j miles southwest of Joseph.

Drainage area.--31 sq mi, approximately

Records available.--April to September 1915, April 1924 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,490 ft (by barometer). Apr. 27 to 

 Sept. 3, 1915, staff gage at site 250 ft downstream at different datum. Apr. 23, 1924,

to June 13, 1933, water-etage recorder at site 150 ft downstream from present site at

different datum.

Average discharge.--24 years (1927-51), 69.2 cfs.

Extremes.--Maximum discharge during year, 360 cfs June 15 (gage height, 3.00 ft); minimum, 

19 cfs Mar. 8, caused by temporary storage behind ice Jam upstream.

1915, 1924-51: Maximum discharge, 1,110 cfs June 9, 1948 (gage height, 3.55 ft); minimum, 3.4 cfs Feb. 10, 1938, Feb. 6, 1946, probably caused by temporary storage behind 

ice Jam upstream.

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 table, water year 19JO-51, except period of lee effect (gage 

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

(Shifting-control method used May 30 to June 10)

1.7

1.8 

2.0

2.2 

2.5 

2.9

160

330

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Cf sra

In.

Ac-ft

Oct.

35

75

35

40

50

45

45

50

55

55

60

55

55

50

50

50

60

55

*50

46

47

48

47

*46

48

49

53

54

119

TS3

80

1,670

53.9

1.74

2.00

3,310

Nov.

72

64

67

68

70

67

64

59

49

50

53

54

53

52

50

48

48

47

46

44

43

42

42

46

52

49

48

47

44

44

-

1,582

52.7

1.70

1.90

3,140

Dec.

42

38

41

41

39

41

40

38

39

42

43

42

*41

41

40

40

39

38

37

37

37

37

47

47

46

44

43

42

42

41

40

1,265

40.8

1.32

1.52

2,510

Jan.

40

41

36

37

37

33

34

36

*37

40

40

38

37

37

37

37

37

35

37

36

35

36

36

36

37

37

35

29

26

b25

*b25

1,099

35.5

1.15

1.32

2,180

Feb.

b28

b30

36

33

32

31

37

35

40

41

40

38

35

37

37

35

35

36

33

34

34

33

32

33

33

30

30

30

_

_

-

958

34.2

1.10

1.15

1,900

Mar.

31

31

30

31

30

30

29

29

29

29

28

27

TS7

27

29

28

27

27

*27

28

29

29

27

28

29

29

30

29

30

30

*30

894

28.8

0.929

1.07

1,770

Apr.

30

33

37

42

48

53

56

59

60

64

72

86

95

99

106

119

122

Tl4

101

92

84

*80

77

77

82

90

95

90

82

2,277

75.9

2.45

2.73

4,520

May

80

74

74

80

84

111

181

154

160

188

203

174

154

142

139

157

174

*178

184

188

199

244

280

253

223

219

240

235

192

157

139

5,260

170

5.48

6.31

10,430

June

133

127

125

119

122

*114

103

101

111

130

151

178

199

231

290

315

29Q

276

258

248

235

*215

215

211

192

188

199

199

195

195

5,665

189

6.10

6.80

11,240

July

207

211

223

248

211

184

170

167

170

164

154

154

170

174

167

167

164

164

157

145

130

119

*119

130

127

116

111

108

101

92

95

4,819

155

5.00

5.78

9,560

Aug.

92

88

84

79

70

67

64

60

58

56

54

53

50

50

50

49

48

48

48

47

46

46

46

*43

41

40

39

5S

49

44

40

1,699

54.8

1.77

2.04

3,370

Sept.

38

37

37

36

35

34

34

33

33

33

33

33

32

31

31

30

30

30

30

30

30

30

30

*29

29

29

29

27

27

30

-

950

31.7

1.02

1.14

1,880

Calendar year 1950: Max 418 Mln 20 Mean 77.1 Cfsm 2.49 In. 33.76 Ac-ft 55,820

Water year 1950-51: Max 515 Min 25 Mean 77.1 Cfsm 2.49 In. 33.76 Ac-ft 55,810

Peak discharge ("base, 400 cfs) .--No peak above base. 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

.--No gage-height record Oct. 1-19; discharge estimated

cords for Bear Creek near Wallowa and Lostine River near Lostlne.

3ls of recorded range In stage,
GRANDE RONDE RIVER BASIN 833

Lostine River near Lostine, Oreg.

Location.--Lat 45°26', long 117°26', in NW£ sec. 34, T. 1 S. , R. 43 E., on left bank 3i 

miles south of Lostine and 10 miles upstream from mouth.

Drainage area.--70 sq mi, approximately.

Records available.--August 1912 to March 1914, April to September 1915, July 1925 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 3,670 ft (by barometer). Aug. 24, 1912, 

to Sept. 25, 1915, staff gage at site-600 ft upstream at different datum. July 21, 

1925, to Sept. 30, 1929, water-stage recorder at site 200 ft upstream from present site 

at datum about 0.5 ft higher than present datum.

Average discharge.--24 years (1912-13, 1928-51), 186 cfs.

Extremes.--Maximum discharge during year, 1,250 cfs May 27 (gage height, 5.53 ft); minimum, 24 cfs Mar. 13, caused by temporary storage behind ice Jam upstream.

1912-14, 1915, 1925-51: Maximum daily discharge, 2,540 cfs May 27, 1913; maximum 

gage height, 7.64 ft June 16, 1933; minimum discharge recorded, 10 cfs Nov. 28-30,

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

which are poor. Diversions for irrigation of about 100 acres above station. Flow

slightly regalated by Minam Lake.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

(Backwater from debris Jan. Z to May 22)

Oct. 1 to May 27 May 28 to Sept. 30

0.7 

1.0 

1.5 

2.0

30

52

106

182

3.0 

4.0 

5.2

400

700

1,120

0.7 

1.0 

1.5 

2.0

28

50

101

173

3.0 375

4.0 665

5.4 1,180

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Ae-ft^

Oct.

48

50

48

81

102

86

84

98

a!15

a!05

*allO

100

95

88

83

78

84

119

95

87

86

36

82 

76

80

91

*94

9C

192

209

T56

3,004

9S.9

5,960

Nov.

144

139

139

142

142

134

120

125

92

91

81

77

70

68

SI

58

6l

65

62

64

59

58

58 

68

87

83

81

78

77

78

2,672

89.1

5,300

Dec.

74

74

78

84

79

83

88

82

81

91

*94

94

90

87

86

84

82

80

79

78

76

77

112 

T55

101

93

92

91

90

87

83

2,679

86.4

5,310

Jan.

83

86

82

94

92

b80

b70

b60

b65

70

70

*66

69

76

78

74

77

76

82

b77

73

74

71 

72

71

71

68

b60

a45

a40

a35

2,207

71.2

4,380

Feb.

*b38

b40

4S

43

41

40

55

68

87

al40

a!20

99

85

81

78

73

70

69

64

64

63

61

57 

b55

b50

b45

b40

b42

_

_

-

1,814

64.8

3,600

Mar.

b45

b50

b45

b45

49

51

52

*49

50

49

b50

50

48

48

66

61

55

b55

55

58

60

58

55 

59

60

63

64

64

67

65

64

1,710

55.2

3,390

Apr.

*S3

66

72

84

104

130

150

162

171

171

169

186

228

279

281

287

309

*323 316-

285

250

226

210

193

190

203

222

256

234

205

-

6,025

201

11,950

May

186

168

162

188

207

285

563

473

452

575

714

584

440

355

311

360

*476

521

563

599

679

838

1,110 

1,080

1,000

984

1,090

1,020

768

614

497

17,862

576

35,430

June

412

372

370

345

355

*315

295

"559 279

358

467

623

695

835

1,030

al. 150

a 1,000

a900

a800

a730

# 65

629

611 

635

563

557

572

575

563

560

-

17,560

585

34,830

July

584

605

608

"593 702

476

415

402

402

382

325

328

358

380

360

342

330

*319

297

261

224

203

194 

197

203

183

168

159

154

139

130

10,423

336

20,670

Aug.

132

125

121

116

107

101

94

89

84

*81

77

75

71

66

62

59

56

55

54

51

50

53

52 

49

47

44

-67 43

76

*65

57

2,279

73.5

4,520

Sept.

53

49

47

44

43

41

71

75

7T

68

64

58

54

48

42

39

36

34

34

32

32

*31

30 

29

32

33

31

29

28

35

-

1,313

43.8

2,600

Calendar year 1950: Max 1,530 Mln 34 Mean 226 Ae-ft 163,300

Water year 1950-51: Max 1,150 Min 28 Mean 191 Ac-ft 137,900

Peak discharge (base, 1.100 cfs).--May 27 (11:30 p.m.) 1,250 cfs (5.53 ft); June 16 (2 a.m.) 1,200 

cfs (5.4,5 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Bear Creek near Wallowa and 

Hurricane Creek near Joseph.

b Stage-discharge relation affected by ice.
234 GRANDE RONDE RIVER BASIN

Bear Creek near Wallowa, Oreg.

Location. Lat 45°32', long. 117°33', In NE£ sec. 34, T. IN., R. 42 E., on right bank 15 

ft downstream from unused bridge and 3 miles southwest of Wallowa.

Drainage area. 68 sq mi, approximately.

Records available.--April to September 1915, April 1924 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 3,220 ft (by barometer). Apr. 13 to 

Sept. 16, 1915, staff gage at site three-quarters of a mile upstream at different datum. 

Apr. 22, 1924, to Nov. 2, 1931, water-stage recorder at site 1 mile upstream from present site at different datum above intakes of two irrigation ditches with a combined 

capacity of about 3 cfs.

Average discharge.--22 years (1929-51), 108 cfs.

Extremes.--Maximum discharge during year, 618 cfs May 23 (gage height, 2.87 ft); maximum 

gage height, 2.90 ft Feb. 1 (ice jam); minimum discharge, 9 cfs Sept. 19-25, 29, 30. 

1915, 1924-51: Maximum discharge, 1,620 cfs Apr. 22, 1936 (gage height, 3.82 ft, 

from floodmarks), from rating curve extended above 950 cfs; minimum, 3 cfs Jan. 20, Feb. 

1, 1937.

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

which are poor. Diversions for irrigation of about 100 acres above station.

Rating tables, water year 1950-51, except periods of ice effect 

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

Oct. 1 to May 11

1.1 

1.3 

1.5 

1.7 78

2.0 

2.3 

2.8

145

240

520

May 12 to Sept. 30

1.0 6 1.7 78

1.1 10 2.0 154

1.3 23 2.4 315

1.5 45 2.8 565

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac- ft

Oct.

15

15

15

21

29

26

24

36

43

37

40

37

35

33

31

*30

31

45

36

33

32

32

30

28

29

*41

45

50

82

96

76

 1,153

37.2

2,290

Nov.

75

73

82

90

90

82

78

75

60

58

57

53

48

46

43

42

42

42

39

45

41

40

40

42

64

70

71

68

63

64

-

1,783

59.4

3,540

Dec.

58

54

54

63

58

66

76

75

73

80

*88

94

92

84

80

73

68

64

64

61

58

57

82

86

86

86

84

80

76

75

70

2,265

73.1

4,490

Jan.

68

71

64

66

61

60

b55

*b50

b45

b50

b50

b48

46

46

45

46

46

45

42

b41

b40

39

35

36

36

39

41

b40

b38

b35

b40

1,464

47.2

2,900

Feb.

*b55

b70

b65

b60

b55

b50

b70

b90

blSO

199

212

196

163

135

120

*105

94

84

75

71

66

61

58

55

b50

b45

b40

b42

_

_

-

2,516

89.9

4,990

Mar.

b45

45

b45

b50

55

60

57

48

40

37

36

33

33

33

53

71

71

66

70

76

90

90

84

78

80

a85

a90

a90

a95

a§0

a90

1,986

64.1

3,940

Apr.

*90

92

105

142

190

222

240

248

240

230

219

226

264

315

295

285

305

*315

285

248

208

184

169

157

157

169

181

216

208

190

-

6,395

213

12,680

May

169

154

151

172

193

252

464

408

366

402

464

388

315

259

225

246

*305

332

337

342

359

443

551

530

488

462

495

456

354

291

238

10,611

342

21,050

June

214

202

202

202

214

*195

187

184

202

225

267

364

364

424

502

469

412

370

342

310

*281

254

242

250

217

214

210

202

187

177

-

8,085

270

16,040

July

177

177

167

198

161

137

120

112

105

98

91

89

85

85

80

73

67

*65

58

52

45

43

38

37

35

32

31

29

27

26

24

2,564

82.7

5,090

Aug.

23

22

21

21

21

21

21

20

18

*17

16

15

15

15

14

14

13

13

13

12_

12

13

13

a!3

a!2

a!2

a!5

a20

a!8

*15

14

502

16.2

996

Sept.

14

14

14

13

13

13

12

12

12

11

11

11

11

11

11

10

10

10

10

9_

*10

9

9

9

11

11

10

10

9

12

-

332

11.1

659

Calendar year 1950: Max 852 Min 12 Mean 133 Ac-I't 96,240

Water year 1950-51: Max 551 Min 9 Mean 109 Ac-ft 78,660

Peak discharge (base. 600 cfs).--May 23 (11 p.m.) 618 cfs (2.87 ft). 

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of records for Lostine River near Lostine 

and Hurricane Creek near Joseph and recorded range in stage when available. 

b Stage-discharge relation affected by lee.
GRANDE RONDE RIVER BASIN 235

Grande Ronde River at Rondowa, Oreg.

Location. Lat 45°44', long. 117°47' , in NW£ sec. 23, T. 3 N., R. 40 E., on right bank 

at Rondowa, 500 ft downstream from Wallowa River, at mile 81.4 (U. S. G. S. Plan and 

Profile).

Drainage area. 2,555 sq mi.

Records available . October 1926 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,281.87 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1947.

Average discharge.--25 years, 2,018 cfs.

Extremes.--Maximum discharge during year, 8,250 cfs Feb. 11 (gage height, 5.73 ft); minimum, 410 cfs Aug. 20, 21, Sept. 20 (gage height, 1.00 ft).

1926-51: Maximum discharge, 19,900 cfs May 28, 1948 (gage height, 9.76 ft); minimum, 225 cfs Dec. 19, 1935.

Remarks. Records excellent. Many diversions above station for irrigation, chiefly in 

vicinity of La Grande, Enterprise and Wallowa; one transbasin diversion from Sheep 

Creek and Little Sheep Creek in Imnaha River basin for irrigation of about 5,200 

acres in Wallowa Valley. Flow slightly regulated by Wallowa Lake.

Revisions (water years). W 1093: 1927-29, 1932-33, 1936, 1938, 1939(M), 1943.

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.0 410

1.2 545

1.5 780

2.0 1,250

3.0 

4.0

5.5

2,550

4,450

7,720

Discharge, In cubic feet per second, water year October 1950 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

Tota:

Mean

Ac-ft

Oct.

575 

552

590

636

748

848

748

772

822

764

748 

756

748

732

700

692

724

848

814

764

756

748

740

724

724

831

822

901

1,110

1.250

1,160

24,377

786

48,350

Nov.

1,140 

1,220

1,170

1,200

1,180

1,130

1,130

1,180

1,050

*984

1,020 

984

955

946

910

901

901

984

928

964

974

937

937

937

1,020

1,060

1,080

1,070

1,040

1,050

-

30,982

1,033

61,450

Dec.

1,010 

955

964

1,100

1,180

1,300

1,650

1,660

1,540

1,520

*1,550 

1,580

1,520

1,470

1,440

1,390

1,340

1,320

1,280

1,250

1,220

1,210

1,440

1,530

1,520

1,460

1,400

1,380

1,430

1,610

1.750

42,969

1,386

85,230

Jan.

1,710 

1,710

1,740

1,660

1,580

1,390

1,150

1,100

1,200

1,250

1,280 

1,230

1,220

1,370

1,630

1,660

1,690

1,630

1,480

1,330

1,300

1,340

1,320

1,330

1,510

1,850

1,950

1,540

1,030

955

874

44,009

1,420

87,290

Feb.

1.010 

1,160

1,220

1,240

1,290

1,340

1,870

3,500

5,180

6,070

fM7

6^230

5,400

4,620

3,920

3,360

2,970

2,540

2,310

2,150

2,010

1,900

1,840

1,800

1,630

1,510

1,450

-

-

-

84,230

3,008

167,100

Mar.

1,420 

1,420

1,280

1,300

1,270

1,270

1,230

1,220

1,200

1,150

1.100 

1,140

1,150

1,230

2,570

3,500

3,380

3,140

3,060

3,330

3,760

3,680

3,400

3,380

3,760

4,200

4,570

4,320

4,540

4,160

5,900

79,630

2,569

157,900

Apr.

3,960 

4,240

*4, 680

5,270

5,900

6,380

6,600

6,690

6,640

6,450

6,160 

6,050

6,290

6,780

6,750

6,710

6,750

6.820

6,580

6,090

5,500

5,040

4,640

4,320

4,080

5.940

3,940

4,760

5,230

4,910

168,150

5,605

555,500

May

4,530 

4,180

3,960

3.940

4,040

4,450

6,450

6,470

6,230

6,510

7.220 

7,020

6,470

6,010

5,590

5,520

5,790

5,790

5,720

5,630

5,650

5,870

6,620

*6,690

6,380

6,120

6,290

6,250

5,290

4,600

4,000

175,280

5,654

547,700

June

5,460 

5,120

2,950

2,850

3,330

5,210

3,530

3,210

3,120

5,100

5,270 

5,780

5,960

4,140

4,790

4i930

4J510

4,100

5,680

3,400

5,120

2,810

2,630

2,630

2,430

2,340

2,260

2,190

2,120

2.070

96,800

3,227

192,000

July

2,070 

2,110

2,080

2.570

2,300

2,110

1,850

1,760

1,710

1,690

1,550 

1,470

1,420

1,430

1,390

1,530

1,260

1,180

1,120

1,050

*937

883

840

797

740

700

668

684

676

676

644

41,495

1,359

82,300

Aug.

656 

628

612

598

582

590

590

582

560

551

545 

545

551

*524

517

496

496

482

442

416

425

449

462

456

442

456

462

505

724

716

660

16,656

557

33,040

Sept.

628 

605

598

568

568

552

538

538

558

524

517 

517

489

468

462

449

436

436

430

416

430

456

450

450

449

468

456

456

462

510

-

14,804

495

29,560

Calendar year 1950: Max 8,760 Mln 489 Mean 2,604 Ac-ft 1,885,000

Water year 1950-51: Max 7,400 Mln 416 Mean 2,245 Ac-ft 1,625,000

Peak discharge (base. 5.000 efs). Peb. 11 (9:50 p.m.) 8,250 cfs (5.75 ft); Apr. 18 (4 a.m.) 6,910 

cfs (5.14 ft): Apr. 29 (2 a.m.) 5.550 cfs (4.42 ft): May 11 (5 to 8 p.m.) 7,420 cfs (5.57 ft); May 

24 (4:30 a.m.) 6,930 cfs (5.15 ft); June 16 (4 a.m.) 5,250 cfs (4.38 ft).

* Discharge measurement made on this day.
236 GRANDE RONDE RIVER BASIN

Grande Ronde River at Troy, Oreg.

Location. Lat 45°57' , long. 117-27', in NW£ sec. 4, T. 5 N., R. 43 E., at downstream

 side of left end of bridge »t Troy, 100 ft downstream from Wenaha River, at mile 45.4 

(U. S. G. S. Plan and Profile).

Drainage area. 3-,275 sq mi.

Records available. August 1944 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,587.13 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1947. Prior to Oct. 1, 1949, wire-weight gage 

at same site at datum 12 ft lower.

Average discharge.--7 years, 3,419 cfs.

Extremes. Maximum discharge during year, 14,200 cfs Feb. 12 (gage height, 8.15 ft); min-

 imum, 600 cfs Aug. 20, 21, but may have been lower during period of doubtful gageheight record.

1944-51: Maximum discharge observed, 30,000 cfs Dec. 15, 1946 (gage height, 11.20 

ft, present datum); minimum observed, 470 cfs Sept. 11, 1944.

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

 wETch are good. Many diversions above station for irrigation, chiefly in vicinity of 

La Grande, Enterprise and Wallowa; one transbasin diversion from Sheep Creek and Little 

Sheep Creek in Imnaha River basin for irrigation of about 5,200 acres in Wallowa 

Valley. Flow slightly regulated by Wallowa Lake.

Rating tables, water year 195O-51 (gage height, in feet, and 

discharge, in cubic feet per second)

Oct. 1 to Aug. 2O Aug. 21 to Sept. 30

2.2

2.5 

3.0 

3.5 

4.0

695

910

1,390

1,960

2,650

5.0 

6.0 

7.0 

7.7

4,440

6,830

9,900

12,400

2.0 

2.3 

2.6

610

820

1,080

Discharge, In cubic feet per second, water year October 1950 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

Total

Mean

Ac-ft

Oct.

809

809

809

854

982

1,150

1,050

991

1,090

1,040

991 

982

973

964

937

919 

937

1,060

1,130

1,020

1,000

1,000

991

964

964

*1,090

1,080

1,380

1,890

1.940

1,770

33,566

1,083

66,580

Nov.

,740

.080

,860

,880

,780

,680

,680

,760

,630

,490

,480 

,420

,380

,350

,290

.280 

,310

,490

,460

,440

,530

,510

,530

,540

,640

,740

,780

,740

,660

,640

-

47,790

1,593

94,790

Dec.

1,630

1,520

1,490

1,840

2,060

2,130

2,910

3,020

2,700

2,560

2,650 

2,680

2,580

*2,400

2,350

2,250 

2,190

2,140

2,090

2,060

1,990

1,990

2,640

2,960

2,860

2,710

2,530

2,420

2,360

2,520

2,740

72,970

2,354

144,700

Jan.

2,680

2,700

2,800

2,680

2,530

2,280

2,020

1,820

1,850

1,940

1,960 

1,900

1,850

2,000

2,220

2,490 

2,600

2,650

2,370

2,130

2,080

2,080

2,020

2,000

2,190

2,700

5.150

2,760

1,860

1,700

1.640

69,630

2,246

138,100

Feb.

1.700

1,880

1,910

*1 , 900

1,900

1,910

2,220

4,130

7,000

10,100

12.500

9*530

7,980

6,780

5,820 

5,090

4,630

3,950

3,580

3,270

3,090

2,930

2,860

2,800

2,530

2,350

2,230

_

.

-

128,670

4,595

255,200

Mar.

2,170

2,180

1,970

2,020

1,960

1,910

1,840

1,790

1,770

1,680

fcf§&

1,640

1,800

2,980

5,550 

4,940

4,460

4,290

4,650

5,390

5,390

4,910

4,740

5,300

6,120

6.380

6,220

6,330

6,070

*5, 620

115,340

3,721

228,800

Apr.

5,740

6,460

7,420

8,470

9,490

10,400

10.700

10, 500

10,300

9,870

9,260 

9,100

9,630

10,400

10, 000

9,830 

9,870

9,900

9,460

8,530

7,540

6,860

6,380

6,070

5,820

5,770

5.720

6,510

7,450

6,830

-

250,280

8,343

496,400

May

6,270

5,740

5,530

5,550

5,620

5,960

8,010

8,650

8,130

8,280

9.010 

8,850

8,010

7,390

6,780

6,640 

6,940

6,940

*6,800

6,670

6,610

6,780

7,480

7,770

7,590

7,170

7,190

7,190

6,300

5,530

4.940

216,320

6,978

429,100

June

4,400

3,990

3,780

3,630

4,270

4,310

4,380

4,340

4,130

4,030

4,130 

4,520

4,800

4,830

5,250

5.570 

5,200

4,800

4,400

4,050

3,780

3,510

3,260

3,100

d3,000

d2,800

d2,700

d2 , 600

d2 . 500

d2,500

-

118,560

3,952

235,200

July

<J2,400

d2,400

d2,500

2,710

2,830

2,650

2,360

2,220

2,160

d2,050

dl,950 

dl,850

dl,800

dl,800

dl,750

dl,700 

dl,600

dl,500

dl,400

dl,300

dl,200

dl , 100

dl,050

d 1,000

d950

*928

910

902

919

910

886

51,685

1,667

102,500

Aug.

862

846

846

830

809

795

823

802

788

d740

767 

d760

d740

d740

d720

d700 

d700

d680

d640

d600

d600

d620

d640

d620

d620

d660

d700

*796

972

1.030

990

23,456

756

46,480

Sept.

927

900

876

852

836

828

820

812

812

796

796 

788

772

740

740

719 

698

698

684

670

677

684

684

684

705

748

733

726

735

780

-

22,918

764

45,460

Calendar year 1950: Max 15,800 Mln 721 Mean 3,863 Ac-ft 2,797,000

Water year 1950-51: Max 12,300 Mln 600 Mean 3,154 Ac-ft 2,283,000

Peak discharge (base. 7.000 efs).--Feb. 12 

9,330

1 a 

6.83

.m.) 

ft) .

14,200 cfs (8.15 ft); Apr. 7 (ll p.m.) 11,000

cfs (7.30 ft); May 11 (11:50 p.n

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basis of recorded graph and records for station at Rondowa.
ASOTIN CREEK BASIN 237

Asotin Creek near Asotln, Wash.

Location. Lat 46°19'30", long. 117°12'30", in SE^ sec. 19 (revised), T. 10 N. , R. 45 E., 

on left bank half a mile upstream from Washington Water Power Co.'s diversion for water 

supply and irrigation, 5 (revised) miles upstream from George Creek, and 8 miles west 

of Asotin.

Drainage area. 156 sq mi (revised).

Records available.--March 1904 to November 1906, August 1910 to October 1911, August 1928 

to September 1951. Published as "at Shelman's Ranch, near Asotin" 1904-5.

Gage.--Staff gage read twice daily. Prior to August 1938, staff gages within a quarter of 

a mile of present site at different daturas.

Average discharge. 23 years (1928-51), 64.1 cfs.

Extremes.--Maximum discharge observed during year, 490 cfs Feb. 11 (gage height, 2.80 ft); 

minimum observed, 35 cfs Aug. 19 (gage height, 0.75 ft).

1904-6, 1910-11, 1928-51: Maximum discharge observed, 1,180 cfs Apr. 15, 1904 (gage 

height, 4.3 ft, site and datum then in use); minimum observed, 16 cfs Jan. 5, 1937.

Remarks. Records good except those for periods of rapidly changing stage, which are fair, 

and those for periods of ice effect, which are poor. Large part of low flow diverted 

for irrigation. No regulation.

Cooperation. Gage-height record furnished by Washington Water Power Co.

Rating tables, water year 1950-51, except periods of ice effect 

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

Oct. 1 to Feb. 10 Feb. 11 to Sept. 3O

1.0 

l.Z 

1.5 

Z.O 

2.6

29

55

105

206

352

0.7 

.9 

1.3 

2.0 

2.8

31

49

110

260

490

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

39

39

39

41

44

41

39

37

39

39

39

37

39

37

37

37

37

45

41

40

39

39

39

39

37

51

42

60

152

142

118

1,544

49.8

3,060

NDV.

94

94

91

87

84

*75

73

73

66

64

64

64

61

60

56

58

62

62

58

64

67

73

78

84

103

116

114

103

92

92

-

2,332

77.7

4,630

Dec.

85

80

77

78

70_

80

123

132

123

123

132

132

121

112

103

*96

92

87

84

82

80

78

85

89

92

96

92

85

82

80

78

2,949

95.1

5,850

Jan.

75

78

78

75

68

62

b58

b60

62

61

60

60

58

62

62

66

80

72

68

64

68

66

62

62

66

84

beo

b60

b45

b40

b40

2,002

64.6

3,970

Feb.

b40

b45

80

75

72

62

*89

96

183

352

490

430

325

272

222

190

170

150

130

126

112

105

103

97

92

86

78

78

^

-

4,350

155

8,630

Mar.

78

76

72

73

*73

70

67

67

66

60

59

60

64

70

120

116

103

99

96

105

116

118

110

105

106

120

128

126

126

126

118

2,893

93.3

5,740

Apr.'

114

116

*126

150

180

200

200

210

200

200

190

180

180

222

222

210

210

222

210

190

170

160

150

140

140

130

130

170

190

170

-

5,282

176

10,480

May

160

150

150

150

160

190

310

325

298

272

*285

285

235

200

180

170

*170

190

180

170

170

180

200

200

200

180

180

170

150

140

150

6,130

198

12,160

June

120

110

112

118

160

150

150

150

140

130

140

150

140

140

130

124

116

110

105

99

96

94

87

87

86

79

73

72

67

6JL

-

3,401

113

6,750

July

64

64

62

68

64

62

60

56

56

*55

54

50

50

49

48

47

47

46

46

46

45

45

44

43

43

43

43

41

41

41

41

1,564

50.5

3,100

Aug.

41

41

41

40

39

39

39

39

38

38

38

39

39

39

38

38

37

37

36

38

37

37

*37

37

37

37

37

39

41

43

42

1,204

38.8

2,390

Sept.

41

39

39

37

37

37

37

37

37

37

39

39

39

37

37

37

37

37

36

37

36

36

37

37

37

38

39

39

39

39

-

1,130

37.7

2,240

Calendar year 1950: Max 265 Min 25 Mean 95.0 Ac-ft 68,760

Water year 1950-51: Max 490 Min 36 Mean 95.3 Ac-ft 69,000

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
238 CLEARWATER RIVER BASIN

Selway River near Lowell, Idaho

Location.--Lat 46°05', long. 115°31', in NE£ sec. 25, T. 32 N. , R. 7 E., on right bank 

a quarter of a mile upstream from O'Hara Creek and 7 miles upstream from Lowell.

Drainage area. 1,910 sq mi, approximately.

Records available. April 1911 to September 1912 (gage heights or fragmentary discharge 

records only), October 1929 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,540 ft (from river-profile map). Apr. 

11 to Sept. 2, 1911, staff gage at site 2 miles downstream at different datum. Feb. 7 

to Sept. 22, 1912, and Oct. 14, 1929, to Nov. 19, 1930, staff or chain gages at nearby 

sites and different daturas.

Average discharge. 22 years (1929-51), 3,554 cfs.

Extremes. Maximum discharge during year, 23,100 cfs May 24 (gage height, 10.84 ft); minimum, 524 cfs Sept. 21 (gage height, 2.71 ft).

1929-51: Maximum discharge, 48,900 cfs May 29, 1948 (gage height, 16.04 ft); minimum, probably less than 100 cfs Jan. 8, 1937, during period of ice effect.

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

diversions from headwaters.

Revisions.--W 1043: Drainage area.

Rating table, water year 195O-51, except periods of Ice effect (gage 

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

2.7 

3.0 

3.5 

4.0 

5.0

517

748

1,220

1,810

3,360

6.0 

7.0 

8.0 

9.0 

10.6

5,440

8,080

13,400

15,300

22,200

Discharge, In cubic feet per second, water year October 195O 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

total

Mean

Cf sm

In.

Ac-ft

Oct.

825 

808

800

843

1,140

1,670

1,510

1,320

1,610

1,580

1,540

1,620

1,580

1,480

1,440

1,540 

1,460

1,860

2,020

1,680

1,600

1,820

*1,730

1,660

1,540

1,600

1,670

1,850

2,940

5,520

2,940

50,996

1,645

0.861

0.99

101,100

Nov.

2,630 

 2,700

2,490

2,660

3,100

5,200

3,180

5,100

2,520

2,220

2,500

2,340

2,110

2,070

1,860

1,900 

1,880

1,940

1,770

1,690

1,800

1,840

2,150

2,140

2,460

2,550

2,460

2,320

2,180

2,150

-

69,910

2,330

1.22

1.36

138,700

Dec.

2,120 

1,970

1,860

2,110

1,850

1,680

2,090

1,970

*1,800

1,840

1,930

2,040

2,020

1,930

1,890

1,840

1,770

1,730

1,710

1,840

1,820

1,800

2,700

5,080

5,710

5.810

3,380

3,100

2,840

2,680

2,550

69,460

2,241

1.17

1.35

137,800

Jan.

2,580 

2,310

2,510

2,240

2,120

1,950

1,610

1,610

1,980

1,730

1,680

1,680

1,710

1,780

1,740

1,770 

1,730

*1,710

1,600

1,560

1,560

1,620

1,540

1,520

1,570

1,640

1,660

1,170

765

898

1,150

52,293

1,687

0.883

1.02

103,700

Feb.

blisoo

bl,600

bl, 600

1,610

1,460

1,450

2,150

2,940

5,920

6,820

7,170

5,560

4,540

3,980

5,540 

5,160

3,030

2,760

2,580

2,490

2,320

2,210

2,210

2,150

2,010

1,860

1,850

_

_

-

81,850

2,923

1.53

1.59

162,300

Mar.

1,810 

*1,780

1,780

1,730

1,740

1,640

1,630

1,480

1,610

1,440

1.400

1,450

1,510

1,540

1,570

1,840 

1,680

1,560

1,560

1,620

1,720

1,810

1,780

1,780

1,950

2,260

2,460

2,320

2,320

2,380

2,370

55,480

1,790

0.957

1.08

110,000

Apr.

2.480 

5,010

4,020

5,140

5,970

6,980

7,750

8,110

7,910

7,550

7,110

*7,080

7,960

9,680

9,850

9,650 

9,950

10,700

10, 600

9,220

8,080

7,250

6,750

6,710

7,000

7,700

8,320

9,680

11.700

10,700

-

234,550

7,818

4.09

4.57

465,200

May

9,420 

8,380

7.750

8,080

9,550

12,800

17,400

17,500

16,400

17,800

19,600

19,300

16, 600

14,100

12,. 500

12,600 

13,800

14,900

*15,300

15,400

15,700

17,200

20, 100

22.200

21,000

19, 100

19 , 500

20,400

17,100

14, 800

12,800

478,660

15,440

8.08

9.32

949,400

June

11,000 

9,750

9,190

8,940

10, 100

10, 200

9,820

9,220

9,000

9,780

11,400

12,700

12, 800

14, 000

15,700

16.600 

*14,700

13,600

12,100

11,700

10,800

9,780

8,940

9,480

9,100

8,550

8,200

7,850

7,170

6.760

-

318,730

10,620

5.56

6.21

632,200

July

6,680 

7.190

6,550

7,080

6,680

6,540

5,560

5,050

4,610

4,560

4,160

3,790

3,640

*5, 600

5,500

3,270 

3,060

2,860

2,650

2,480

2,250

2,070

1,950

1,880

1,910

1,810

1,680

1,620

1,630

1,520

1.410

113,040

3,646

1.91

2.20

224,200

Aug.

1.550 

1,300

1,250

1,240

1,290

1,170

1,090

1,040

1,010

1,000

992

982 *944

907

880

852 

817

791

765

748

752.

752

954

1,080

916

817

782

782

817

916

880

29,806

961

0.503

0.58

59,120

Sept.

800 

740

725

699

682

658

655

635

658

645

682

699

658

628

604

589 

567

560

555

551

*524

539

539

551

560

715

699

620

575

575

-

18,821

627

0.328

0.37

37,330

Calendar year 1950: Max 28,000 Mln 553 Mean 4,977 Cfsm 2.61 In. 35.37 Ac-ft 3,603,000

Water year 1950-51: Max 22,200 Mln 524 Mean 4,311 Cfsm 2.26 In. 30.64 Ac-ft 3,121,000

Peak discharge (base. 16.000 efs).--Hay 12 (3 a.m.) 20,900 cfs (10.36 ft); May 24 (7 a.m.) 23,100 

cfs (10.84 ft); June 16 (4 a.m.) 18,300 cfs (9.78 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
CLEARWATER RIVER BASIN 239

Lochsa River near Lowell, Idaho

Location.--Lat 46°09', long. 115°35', in SW£SE£ sec. 33, T. 33 N., R. 7 E., on right bank

 0.7 mile upstream from Lowell, 0.9 mile upstream from mouth, 1.2 miles downstream from 

Pete King Creek, and 19 miles east of Kooskia.

Drainage area.--1,180 sq mi, approximately.

Records available.--November 1910 to August 1912, October 1929 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,452.98 ft above mean sea level, unadjusted.

 Prior to Nov. 21, 1930, staff gage at site 1 mile upstream at different datura.

Average discharge.--22 years (1929-51), 2,685 cfs.

Extremes --Maximum discharge during yrar, 16,100 cfs May 24 (gage height, 9.08 ft); min-

 MST7 364 cfs Sept. 20-22 (gage height, 1.73 ft).

1929-51: Maximum discharge, 34,800 cfs June 10, 1933 (gage height, 13.44 ft), from 

rating curve extended above 25,000 cfs; minimum, probably less than 100 cfs Jan. 8, 

1937, during period of ice effect.

Remarks. Records excellent.

Rating table, water* year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

2.5 

3.0 

4.0

345

640

1,000

1,560

3,030

5.0 

6.0 

7.0 

8.0 

9.0

4,790

6,990

9,590

12,500

15,800

Discharge, in cubic feet per second, water year October 1950 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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

600 

576

58?

608

792

1,280

1,170

990

1,170

1,140

1,110 

1,130

1,070

1,020

1,210

1,230

1,200

1,760

1,830

1,490

1,420

1,480

*1,420

1,400

1,280

1,490

1,490

1,770

3,780

4,300

3,700

45,490

1,467

1.24

1.43

90,230

Nov.

3,160 

3,130

2,810

2,900

3,090

3,130

3,080

2,930

2,430

2,190

2,370 

2,220

2,020

1,970

1,770

1,770

1,820

1,880

1,640

1,600

1,740

1,810

2,090

2,070

2,460

2,500

2,420

2,260

2,120

2,100

69,480

2,316

1.96

2.19

137 , 800

Dec.

2,060 

1,900

1,810

2,020

1,690

1,610

2,040

1,880

*1,760

1,770

1,820 

,960

,900

,820

,770

,810

,740

1,700

1,680

1,810

1,810

1,820

3,050

3,670

4,210

4,180

3,730

3,440

3,160

3,010

2,870

71,500

2,306

1.95

2.25

141,800

Jan.

2,660 

2,580

2,580

2,440

2,360

2,160

1,890

1,890

2,020

1,860

1,810 

1,790

1,780

1,810

1,770

1,740

1,770

*1,690

1,590

1,560

1,570

1,600

1,460

1,490

1,600

1,720

1,620

1,060

930

1,120

1,180

55 , 100

1,777

1.51

1.74

109,300

Feb.

1,250 

1,490

1,540

1,520

1,460

1,370

1,390

2,250

2,900

4,280

5,270 

5,900

4,470

3,800

3,360

3,060

2,790

2,650

2,460

2,310

2,200

2,090

2,060

2,040

2,030

1,850

1,760

1,780

_

_

-

71,330

2,548

2.16

2.25

141,500

Mar.

1,700 

*1,650

1,620

1,620

1,610

1,550

1,500

1,400

1,480

1,420

1,360 

1,360

1,430

1,460

1,490

1,760

1,540

1,440

1,430

1,480

1,560

1,560

1,490

1,480

1,600

1,760

1,860

1,790

1,860

1,930

1,920

49,100

1,584

1.34

1.55

97,390

Calendar year 1950: Max 23,600 Min 466 Mean 3

Apr.

2,090

2,610

3,380

4,120

4,700

5,300

5,870

6,300

6,100

5,720

5,550 

*5,590

6,280

7,790

7,740

7,560

7,770

8,310

8,210

7,140

6,300

5,740

5,460

5,590

5,920

6,560

7,040

8,100

9,590

8,680

187,110

6,237

5.29

5.90

371,100

May

7,560 

6,650

6,190

6,560

7,510

10,300

13 , 100

12,700

12,300

13 , 600

15,100 

15,000

13,000

11,400

9,930

9,670

10,900

11,400

*11,300

11,400

11,500

12,900

15,100

15,600

15,000

14,000

13,900

14,200

11,800

10,300

8,890

358,760

11,570

9.81

11.31

711,600

June

7,790 

7,040

6,750

6,580

7,540

7,560

7,460

7,040

6,700

7,190

8,100 

9,210

9,100

9,620

10,700

11,500

*10,200

9,290

8,210

7,840

7,240

6,730

6,330

6,460

6,400

5,760

5,610

5,340

4,910

4,640

224,640

7,488

6.35

7.08

445,600

,983 Cfsm 3.38 in.

July

4,560 

4,830

4,520

4,890

4,600

4,430

3,920

3,620

3,330

3,440

3,190 

2,870

2,760

*2,690

2,610

2,440

2,280

2,130

2,000

1,850

1,700

1,590

1,490

1,430

1,500

1,450

1,310

1,220

1,220

1,170

1.080

82,120

2,649

2.24

2.59

162,900

Aug.

1,030 

990

940

900

891

846

792

765

738

720

704 

*712

688

656

632

616

584

568

552

536

520

504

55?

640

608

552

520

528

584

688

640

21,196

684

0.580

0.67

42,040

Sept.

568 

528

520

512

488

466

445

445

466

466

473 

520

488

455

424

410

397

390

384

371

*364

3TT

371

384

438

648

712 536"

473

473

13,976

466

0.395

0.44

27,720

45.82 Ac-ft 2,884,000

Water year 1950-51: Max 15,600 Min 364 Mean 3,424 Cfsm 2.90 In. 39.40 Ac-ft 2,479,000

Peak discharse (base, 12,000 cfs). --Hay 12 (4 a.m.) 16.000 cfs (9.04 ft): May 24 (5:30 a.m.)

16,100 cfs (9.08 ft); June 16 (5:30 a.m.) 12,600 cfs (8.03 ft).

* Discharge measurement made on this day.
240 CLEARWATER RIVKR BASIN

South Fork Clearwater River near Elk City, Idaho

Location.--La t 45°49', long. 115 32' , in NE£ sec. 25, T. 29 N., R. 7 E., on right bank 

Just upstream from bridge on road to Orogrande, 0.2 mile upstream from Crooked River 

and 4f miles west of Elk City.

Drainage area.--261 sq mi.

Records available.--September 1944 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 3,816.27 ft above mean sea level, datum of 

T929, supplementary adjustment of 1947. Prior to June 23, 1949, wire-weight gage at 

site 24 ft downstream at datum 6.14 ft lower.

Average discharge. 7 years, 268 cfs.

Extremes.--Maximum discharge during year, 1,280 cfs May 12 (gage height, 4.72 ft); mini- 

 mum, 25 cfs Sept. 21, 22, 24, 25 (gage height, 1.44 ft).

1944-51: Maximum discharge' observed, 3,700 cfs May 29, 1948 (gage height, 13.06 ft, 

site and datum then in use); minimum daily, 17 cfs Dec. 11, 1944.

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

which are poor. No diversion or regulation above station except for mining operations.

Rating tables, water year 1950-51, except periods of Ice effect (gage-height, 

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

Oct. 1 to June 16 June 17 to Sept. 3o

1.6 41

1.8 60

2.0 90

2.4 

2.8 

3.2

173

285

426

3.6 

4.0 

4.7

598

795

1,220

1.4

1.6 

1.8

2.0 

2.4 

2.8

190

304

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

9

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac -ft

Oct.

50

49

48

 BT

84

~S5 118

79

84

76

67

58

56

52

54

66

59

64

66

56

54

71

64

59

*56

58

77

87

84

79

77

2,103

67.8

0.260

0.30

4,170

Nov.

74

104

101

104

97

108

137 m

70

71

101

92

80

74

51

90

84

80

80

85

82

84

103

104

130

124

114

110

84

103

-

2,845

94.8

0.363

0.41

5,640

Dec.

62

79

85

101

76

88

108

*94

87

94

101

114

103

71

112

92

88

82

92

110

103

97

198

203

211

214

171

166

162

152

135

3,677

119

0.456

0.52

7,290

Jan.

132

T76

126

120

112

87

70

80

110

100

95

100

100

100

98

98

94

95

80

80

*90

94

88

90

98

100

100

75

50

45

55

2,888

93.2

0.357

0.41

5,730

Feb.

60

95

100

98

96

90

90

120

120

200

250

280

230

210

200

180

170

160

150

150

140

130

130

130

130

110

100

105

-

_

-

4,024

144

0.552

0.57

7,980

Mar.

105

105

*105

100

100

98

95

95

98

90

90

90

100

105

115

140

130

115

110

120

130

130

125

125

140

150

160

160

160

170

170

3,726

120

0.460

0.53

7,390

Apr.

190

755

300

400

550

700

820

856

834

780

735

*755

866

1,000

959

923

959

 1,010 959"

817

715

641

598

589

598

636

661

755

959

850

-

21,665

722

2.77

3.09

42,970

'May

755

695

685

720

770

BBS

1,040

1,090

1,060

1,070

1,120

1,190

1,130

1,020

947

923

917

*905

856

817

770

755

765

795

770

700

656

617

548

521

504

25,999

839

3.21

3.70

51,570

June

450

407

377

374

487

454

438

430

370

345

338

370

381

338

321

*305

286

274

260

245

231

223

217

225

248

209

193

182

172

156

-

9,306

310

1.19

1.33

18,460

July

159

174

159

228

251

187

162

146

137

132

125

114

*108

100

96

91

87

82

75

72

67

65

64

61

64

62

58

54

78

64

56

3,358

108

0.414

0.48

6,660

Aug.

53

53

49

47

46

44

41

39

38

36

41

*40

37

35

34

34

33

32

30

29

36- 28

83

So

52

42

40

39

40

50

54

1,335

43.1

0.165

0.19

2,650

Sept.

42

39

36

34

33

32

31

31

31

31

31

33

33

32

30

28

28

28

27

*26

25

16

26

25

27

33

32

28

27

27

-

912

30.4

0.116

0.13

1,810

Calendar year 1950: Max 1,630 Mln 35 Mean 281 Cfsm 1.08 In. 14.61 Ac-ft 203,200

Water year 1950-51 : Max 1,190 Mln 25 Mean 224 Cfsm 0.858 In. 11.66 Ac-ft 162,300

Peak discharge (base, 1,300 cfs). No peaks above base.

* Discharge measurement made on this day.

Mote.--Stage-discharge relation affected by ice Jan. 7 to Apr. 7 (no gage-height record Feb. 11 to 

Mar. L; discharge estimated on basis of weather records, and records for station near Grangeville 

and nearby streams).
CLEARWATER RIVER BASIN 241

South Fork Clearwater River near Grangeville, Idaho

Location.--Lat 45°55', long. 116°01", in SE^NW^ sec. 30, T. 30 N., R. 4 E., on right bank 

Just downstream from powerhouse of Washington Water Power Co. and 6 miles east (revised) of Grangeville.

Drainage area. 865 sq mi.

Records available.--November 1910 to September 1916, April 1923 to September 1951.

Gage. --Water-stage recorder. Altitude of gage is 1,830 ft (from river-profile map). Nov. 

14, 1910, to July 31, 1911, staff gage at datum 2.2 ft higher than present datum. Nov. 

2, 1911, to Sept. 30, 1916, staff gage at datum 1.0 ft higher than present datum. Apr. 

1, 1923, to Jan. 7, 1924, chain or staff gage at present datum.

Average discharge.--32 years (1912-16, 1923-51), 841 cfs.

Extremes.--Maximum discharge during year, 4,160 cfs May 11 (gage height, 7.62 ft); minimum, 3 cfs Oct. 1 (gage height, 1.80 ft); minimum daily, 109 cfs Sept. 22.

1910-16, 1923-51: Maximum discharge observed, 12,600 cfs May 29, 1948 (gage height, 

12.50 ft); no flow part of day Aug. 27, 1947; minimum daily, 41 cfs Nov. 22, 1931.

Remarks.--Records good. Considerable diurnal fluctuation at low stages caused by powerplant just above station. No diversion for irrigation.

Cooperation.--Water-stage recorder inspected by Washington Water Po«rer Co. in connection 

with.a Federal Power Commission project.

Revisions.--W 633: Drainage area.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

2.6 

2.8 

3.0 

3.4 

3.8

199

349

541

4.4 

5.0 

6.0 

7.4

892

1,340

2,270

3,980

Discharge, in cubic feet per second, water- year October 1950 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

Total

Mean

Cfsm

In.

Ac-ft

Oct.

214

222

206

232

332

485

408

362

380

354

295

280

257

232

288

324

280

272

299

272

264

328

303

*284

261

276

394

418

475

490

446

9,933

320

0.370

0.43

19,700

Nov.

385

490

490

490

475

480

552

583

422

324

427

427

376

376

505

520

562

390

345

336

390

367

441

475

583

605

583

531

475

451

13,254

442

0.511

0.57

26,290

Dec.

451

385

354

461

376

572

485

*475

452

466

521

557

526

456

441

461

427

422

403

441

451

427

644

796

802

821

700

638

600

589

541

15,921

514

0.594

0.68

31,580

Jan.

526

500

500

490

475

358

280

349

441

390

576

403

594

599

390

390

572

»590

352

528

558

580

341

362

594

415

413

305

190

178

229

11,644

376

0.435

0.50

23,100

Feb.

246

394

413

399

385

358

367

521

610

906

1,200

1.250

960

860

821

765

689

678

622

600

578

536

510

521

521

451

426

427

_

_

-

17,014

608

0.703

0.73

53,750

Mar.

436

*436

418

415

408

594

385

37-2

590

545

549

567

394

427

470

562

505

461

451

475

516

521

495

500

541

610

627

589

610

649

62?

14,738

475

0.549

0.63

29,230

Apr.

S27

759

981

1,300

1,620

1,880

2,080

2,200

2,170

2,100

 2,010

2,020

2,270

2,680

2,640

2,560

2,680

2 , 340

2,770

2,440

2,160

1,970

1,830

1,790

1,810

1,910

2,010

2,260

2,730

2,500

-

61,597

2,050

2.37

2.65

122,200

May

2,220

2,080

2.020

2,160

2,320

2,760

3,560

3,660

3,540

3,680

3.890

3,850

3,560

3,250

3,070

5,090

3,150

*3,100

3,020

2,910

2,860

2,920

3,070

3,080

2,980

2,820

2,820

2,680

2,370

2,190

2,090

90,770

2,950

3.39

3.90

180,000

June

,920

,740

,630

,580

.990

,980

,890

,920

,710

,620

,640

,800

,880

,780

,830

* ,840

,680

,580

,500

,440

,360

,260

,180

,240

,280

,130

,050

981

926

879

46,236

1,540

1.78

1.99

91,710

July

854

840

821

1,120

1,120

892

7%

724

678

660

622

583

*552

516

495

470

456

427

399

390

372

362

341

324

328

330

295

284

280

295

261

16,867

544

0.629

0.73

33,460

Aug.

250

250

259

225

219

216

2 OS

187

193

190

 190

190

190

187

181

169

158

161

157

145

1^2

144

266

316

223

194

172

178

182

226

326

6,192

200

0.231

0.27

12,280

Sept.

188

186

168

160

153

148

133

142

134

137

137

171

153

134

136

131

132

115

124

 115

115

109

115

115

120

151

142

132

120

120

-

4,136

138

0.160

0.18

8,200

Calendar year 1950: Max 5,220 Min 166 Mean 1,084 Cfsm 1.25 In. 17.00 Ac-ft 784,600

Water year 1950-51: Max 3,890 Min 109 Mean 845 Cfsm .977 In. 13.26 Ac-ft 611,500

Peak discharge (base

Discharge meas

5,200 cfs).--May 11 

this

p.m.) 4,160 cfs (7.62 ft).
242 CLEARWATER RIVER BASIN 

Clearwater River at Kamiah, Idaho

Location. Lat 46°14 I , long. 116°01', in sec. 1, T. 33 N., R. 3 E., on left bank a quarter of a mile downstream from highway bridge at Kamiah, three-quarters of a mile downstream from Lawyer Creek, and 6 miles downstream from South Fork.

Drainage area.--4,850 sq mi, approximately. 

Records available.--August 1910 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,162.52 ft above mean sea level, datum of 

T929, supplementary adjustment of 1947. Prior to Oct. 2, 1934, staff or chain gage at 

site 300 ft downstream at same datum.

Average discharge.--41 years, 8,085 cfs.

Extremes.--Maximum discharge during year, 44,200 cfs May 24 (gage height, 12.78 ft); minEnumT 919 cfs. Sept. 21 (gage height, 3.17 ft).

1910-51: Maximum discharge, 99,000 cfs May 29. 1948 (gage height, 19.22 ft); minimum, probably less than 200 cfs Jan. 8, 1937, during period of ice effect.

Remarks.--Records excellent except those below 5,000 cfs, which are good, 

regulation at low stages caused by powerplant on South Fork.

Rating table, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Apr. 5 to June 21, 

July 31 to Sept. 30)

Some diurnal

3.3

4.0 

5.0 

6.0 

7.0

930

1,850

3,680

6,050

9,010

8.0

9.0

10.0

11.0

12.7

12,800

17,600

23,300

30,000

42,800

Discharge, In cubic feet per second, water year October 1950 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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

1,670

1,570

1.560

1,570

1,930

3,110

3,490

2,780

3,010

3,290

2,960

5,070

3,030

2,860

2,860

3,230

3,010

3,550

4,420

3,790

3,350

3,600

3,620

*3,490

3,270

3,410

3,640

3,880

6,280

8.570

7,680

107,550

3,469

0.715

0.82

213,300

Calendar yeai

Nov.

6,440

6,760

6,150

6,180

6,570

7,120

7,040

7,290

6,210

5,130

5,450

5,400

4,940

4,700

4,420

4,120

4,370

4,650

4,350

4.050

4,460

4,440

5,300

5,280

5,980

6,340

6,100

5,780

5,380

5,130

-

165,530

5,518

1.14

1.27

528,500

Dec.

5,200

4,800

4,440

4,940

4,750

4.120

5,550

*5,550

4,' 890

4,750

4,890

5,200

5,180

4,890

4,580

4,600

4,570

4,260

4,140

4,570

4,460

4,370

6,000

8,180

8,810

9.660

8,500

7,770

7,210

6,810

6,650

175,890

5,609

1.16

1.33

344,900

Jan.

6 , 150

5,950

6,020

5,750

5,520

,110

,350

,010

,700

,510

,140

,170

,170

,300

,550

,550

* ,280

,280

,970

,790

,770

,970

,770

,680

,970

,170

,550

,190

.950

1,950

2,290

130, 87CT

4,222

0.871

1.00

259,600

Feb.

2.480

3,100

3,790

5,970

5,860

5,640

5,490

5,420

6,490

11,900

14,500

17.500

13,300

10,700

9,460

8,540

7,650

7,240

6,650

6,260

6,000

5,680

5,320

5,250

5,250

4,820

4,550

4,400

-

_

-

191,190

6,828

1.41

1.47

379,200

1950: Max 55,900 Min 1,290

Mar.

*4,550

4,280

4,210

4,170

4,210

3,990

5,900

5,660

3,790

3,660

3.470

3,530

3,920

4,330

5,080

6.120

5,180

4,600

4,700

5,010

5,200

5,180

4,890

4,870

5,110

5,580

6,080

5,820

5,780

6,020

6,020

146,720

4,733

0.976

1.13

291,000

Apr.

6.100

6,920

8,940

11,300

13,200

15,400

17,000

18,200

17,900

17,000

16,200

* 15, 800

17,400

21,500

22,100

21,400

21,900

25,400

25,700

20,800

18 , 100

16,500

15,000

14,800

15,400

16,800

18,100

20,700

25.100

24,000

-

520,260

17,340

3.58

5.99

*1,032

May

21,200

18,600

17.200

17,600

19,900

25,500

54,900

35,500

35,700

55,900

59,800

40,900

55,800

31,400

27,900

27,600

29,400

51,100

*31,300

31,300

31,500

53,800

39,300

42.600

41,000

57,600

57,500

59,400

33,500

29,100

25,400

977,000

31,520

6.50

7.49

*1,938

June

22,300

19,600

18,400

17,200

19,800

20,900

20,100

19,500

18,200

19,000

21,300

24,300

24,500

25,800

28,500

51.000

*25,700

25,600

22,900

21,900

20,200

18,400

17,200

17,200

17,600

15,800

15,100

14,500

15,300

12.500

-

608,300

20,280

4.18

4.66

tl,207

July

12,200

12,800

12 , 100

12,700

12 . 900

11,700

10,500

9,600

8,740

8,470

8,240

7,380

6,920

6,790

6,650

6,390

*5,980

5,600

5,230

4,940

4,550

4,240

5,940

3,770

3,790

3,770

3,470

3,190

3,210

3,110

2.880

215,730

6,959

1.43

1.65

427,900

Aug.

2.710

2,620

2,490

2,390

2,440

2,340

2,190

2,060

2,010

1,950

1,930

1,910

*1,870

1,790

1,730

1,670

1,600

1,550

1,510

1,470

1,440

1.420

1,550

2,010

1,950

1,630

1,520

1,500

1,560

1,790

1,870

58,450

1,885

0.389

0.45

115,900

Sept.

1.670

1,500

1,440

1,420

1,350

1,310

1,250

1,220

1,260

1,260

1,290

1,360

1,540

1,250

1,180

1,130

1,100

1,070

1,060

1,040

1.000

*1,010

1,040

1,040

1,060

1,540

1,620

1,590

1,220

1,160

-

37,380

1,246

0.257

0.29

74,140

Mean 10, 80 Cfsm 2.20 In. 29.90 Ac-ft 7,734,000

Water year 1950-51: Max 42,600 Min 1,000 Mean 9,131 Cfsm 1.88 In. 25.55 Ac-ft 6,611,000

Peak discharge (base. 28.200 cfs).--May 12 (7:30 a.m.) 43,100 cfs (12.64 ft); May 24 ( 11 a.m.) 

44,200 cfs (12.78 ft); June 16 (9 to 10 a.m.) 34,000 cfs (11.47 ft).

* Discharge measurement made on this day.

* Expressed in thousands.
CLEARWATER RIVER BASIN 243

North Fork Clearwater River at Bungalow ranger station, Idaho

Location. Lat 46°38' , long. 115°30', in sec. 18, T. 38 N., R. 8 E., on left bank at 

Bungalow ranger station, 300 ft downstream from mouth of Orogrande Creek, 1,000 ft 

downstream from highway bridge, and 17 miles northeast of Pierce.

Drainage area.--996 sq mi.

Records available.--September 1944 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,240 ft (from river-profile map).

Average discharge. 7 years, 2,984 cfs.

Extremes. Maximum discharge during year, 13,600 cfs May 11 (gage height, 7.48 ft); minimum, 522 cfs Sept. 20, 21 (gage height, 2.59 ft).

1944-51: Maximum discharge, 27,400 cfs May 29, 1948 (gage height, 11.13 ft); minimum daily, 350 cfs Dec. 12, 1944.

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

fair. No diversion or regulation above station.

Cooperation.--Water-stage recorder inspected by United States Forest Service ranger at 

Bungalow ranger station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

3.1 

3.5 

4.0

490

760

1,100

1,680

2,610

4.5 

5.0 

6.0 

7.1

3,720

5,070

8,220

12,200

Discharge, in cubic feet per second, water year October 195O 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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

730

730

730

750

980

1,620

1,180

969

1,090

1,020

1,130

980

936

892

1,060

992

980

1,650

1,440

 1,200

1,150

1,060

1,050

1,030

992

1,310

1,260

2,300

5.660 

4,180

3,340

44,391

1,432

1.44

1.66

88,050

Nov.

2.920

2,880

2,590

2,570

2,880

2,690

2,670

2,490

2,090

1,990

2,120

1,920

1,780

1,760

1,500

1,700

1,630

1,630

1.360

1,540

1,580

1,660

1,750

2,300

2,630

2,430

2,280

2,090

1,960 

2,070

-

63,460

2,115

2.12

2.37

125,900

Dec.

,940

,800

,750

,820

.420

,630

,890

,630

,520

,540

,600

,710

,620

,550

,580

,580

,580

,580

,650

,850

,900

,320

,700

,470

.750

,360

,840

,460

,120 

,100

,800

72,060

2,325

2.33

2.69

142,900

Jan.

2,570

2.590

2,470

2,350

2,200

,990

,680

,830

,990

,850

,700

,700

,700

,750

,700

,750

,700

,600

,550

,550

,550

* ,490

,420

,490

,730

,850

,580

,300

950 

1,000

1,100

53,680

1,732

1.74

2.00

106,500

Feb.

1.500

1,700

1,800

1,800

1,600

1,550

2,300

4,200

6,000

7,400

9.000

6,500

5,000

4,300

3,800

3,400

3,100

2,900

2,700

2,500

2,400

2,300

2,200

2,200

2,000

1,900

1,900

1,850

-

-

89,800

3,207

3.22

3.35

178,100

Mar.

1,750

1,700

1,700

1,700

1,650

1,550

1,500

1,500

1,500

1,450

1,420

1.400

1,420

1,540

1,550

1,980

1,580

1,440

1,480

1,540

1,620

1,600

1,500

1,500

1,710

2,030

2,030

1,940

2,090 

2.180

2,160

51,710

1,668

1.67

1.93

102,600

Apr.

2.450

3,210

4,100

4,980

5,750

6,360

6,840

7,160

6,390

6,210

6,080

6,420

7,830

8,630

8,320

8,050

8,360

8,830

8,630

7,380

6,610

6,120

5,900

6,120

6,520

7,030

7,620

8,460

9.360 

8,490

-

203,760

6,792

6.82

7.61

404,200

May

7,480

6,710

6.550

6,640

7,350

9,460

11,300

10,800

10,700

11,300

11,700

12.200

10,900

10,000

9,180

9,180

9,460

9,600

9,320

*9,640

10,100

10,800

12,000

12,200

11,900

11,200

10,900

10,500

9,220 

8,290

7,420

303,780

9,799

9. 84

11.34

602,500

June

6,770

6,330

6,180

6,020

6,350

6,180

6,460

5,960

5,720

5,990

6,390

6,960

6,900

6,960

7,520

7,220

6,640

*6,150

5,660

5,300

4,950

4,700

4,420

4,580

4,280

3,940

3,770

3,530

5,320 

5,160

-

168,090

5,605

5.65

6.28

335,400

July

5,070

5,100

2,920

5.500

2,970

2,950

2,610

,450

,320

,280

,140

,030

,960

,890

,800

,710

* ,650

,570

,500

,440

,400

,550

,500

,260

,510

,230

,160

,160

,180 

,090

,050

59,130

1,907

1.91

2.21

117,500

Aug.

1,050

1,000

969

947

947

905

881

870

859

857

857

826

*793

782

771

750

740

720

710

690

690

680

700

710

690

680

660

690

760 

881

782

24,785

800

0.805

0.95

49,160

Sept.

700

680

680

642

624

615

597

606

655

606

710

642

597

588

570

562

554

554

546

550

550

*558

558

538

756

1.100

670

606

588 

670

-

18,770

626

0.629

0.70

37,230

Calendar year 1950: Max 

Water year 1950-51: Max

15,800

12,200

Min

Mln

560

530

Mean 3,682 

Mean 3,160

Cfsm 

Cfsm

3.70 In. 50.18 Ac-ft 2,665,000 

5.17 In. 43.07 Ac-ft 2,288,000

Peak discharge (base, 9.000 cfs).--Feb. 11 (time unknown) about 10,000 cfs; Apr. 18 (11:50 p.m.) 

9,530 cfs (6.38 ft); Apr. 29 (9 to 10 a.m.) 9,640 cfs (6.41 ft); May 11 (12 p.m.) 15,600 cfs (7.48 

ft).

* Discharge measurement made on this day.

Note. No gage-height record; Jan. 10-21, Jan. 28 to Mar. 10; discharge estimated on basis of recorded range in stage, weather records, and records for station near Ahsahka.
244 CLEARWATER RIVER BASIN

North Pork Clearwater River near Ahsahka, Idaho

Location. La t 46°31' long. 116°18', in SE£ sec. 26, T. 37 N., R. IE., on right bank 

at Bruce's Eddy, if miles northeast of Ahsahka and 2 miles upstream from mouth.

Drainage area.--2,440 sq mi, approximately. 

Records available. August 1926 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 969.82 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. Prior to Oct. 29, 1930, staff gage on left 

bank 300 ft upstream at different datum.

Average discharge. 25 years, 5,532 cfs.

Extremes.--Maximum discharge during year, 24,900 cfs May 12 (gage height, 16.60 ft); minimum, 1,050 cfs Sept. 21 (gage height, 2.68 ft).

1926-51: Maximum discharge, 100,000 cfs Dec. 23, 1933 (gage height, 35.5 ft, from 

floodmarks), from rating curve extended above 24,000 cfs by logarithmic plotting; minimum, probably less than 250 cfs Jan. 8, 1937, during period of ice effect.

Remarks. Records excellent except those for periods of ice effect, which are fair. No 

diversion or regulation above station.

Discharge, In cubic feet per second, water year October 195O 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

Total

Mean

Cf sm

In.

Ac-ft

Oct.

1,510 

1,480 

1,480 

1,490

1,620

2,780

3,130

2,250

2,250

2,290

2,720

2,380 

2,060

1,940 

1,870

2,050

1,930

2,220

3,290

2,680

*2,280

2,180

2,050

2,050

1,970

2,530

2,850

3,280

11,600

10,400 

7,760

92,370

2,980

1.22

1.41

183,200

Nov.

6,230 

7.010 

5,930 

5,590

5,590

5,620

5,240

5,420

4,670

4,050

4,170

4,050 

3,760

3,750 

3,450

3,230

3,520

3,570

3,240

2,890

3,250

3,430

3,930

4,250

6,410

6,380

5,810

5,370

4,940

4,740

139,490

4,650

1.91

2.13

276,700

Dec.

5,030 

4,550 

4,210 

4,320

4,030

5.570

4,470

4,640

*4,130

4,100

4,240

4,540 

4,680

4,480 

4,420

4,540

4,650

4,690

4,670

5,240

5,500

5,580

10,400

13. BOO

12,200

11,500

9,860

8,800

7,980

7,680 

7,670

190,170

6,135

2.51

2.90

377,200

Jan.

6,820 

6,540 

6,890 

6,450

6,020

5,460

4,850

4,550

4,810

4,630

4,360

4,290 

4,180

4,320 

4,320

4,230

*4,470

4,290

3,990

3,820

3,800

3,810

3,590

3,530

4,060

4,560

4,840

3,310

2,450

b2,250 

b2,400

137,890

4,448

1.82

2.10

273,500

Feb.

132,600 

TD3.500 

134,100 

4,380

4,320

3,950

3,800

b5,500

b9,900

14,500

17,700

21.600

12^200 

10,400

9,150

8,120

7,520

6,900

6,410

6,020

5,690

5,410

5,260

5,230

4,820

4,420

4,510

-

213,510

7,625

3.13

3.25

423,500

Mar.

4,410 

4,230 

4,150 

4,120

4,110

3,920

3,800

3,470

3,570

3,590

3,410

5^580 

3,500

3,630 

4,120

5,590

4,880

4,170

4,060

4,290

4,670

4,780

4,500

4,320

4,760

5,460

6,060

6,100

6,350

6.720 

6,690

140,810

4,542

1.86

2.15

279,300

Apr.

7 .540 

9,940 

11,300 

13,700

15,700

17,300

18,100

18,600

17,100

15,700

14,700

14,800 

*16,400

19 , 700 

19,300

18,100

18,100

19,000

19,000

16,200

14,200

15,000

12,000

12,200

12,600

15,500

14,500

16,000

18,400

17,700

464,180

15,470

6.34

7.07

920,700

May

15,600 

13,600 

12.400 

12,600

15,900

16,400

21,500

21,000

19,900

21,500

22,900

25 , 400 

21,500

20,700 

18,400

17,700

18,000

18,300

17,700

*17,500

17,500

18,500

20,500

20,600

19,700

18,700

18,000

17,700

15,500

14,000 

12,700

557 , 500

17,980

7.37

8.50

*1,106

June

11,600 

10,900 

10,500 

10,100

10,500

10,800

11,100

10,900

9,900

9,900

10,400

11,600 

11,500

11,400 

11,800

12 . OOP

11,100

10,400

*9,620

8,990

8,510

8,000

7,670

7,700

7,850

7,040

6,720

6,580

6,020

5.750

286,650

9,555

5.92

4.57

568,600

July

5,580 

5,550 

5,360 

5.960

5,910

5,350

4,940

4,560

4,520

4,170

5,990

5,820 

5,640

5,490 

3,380

*3,220

3,110

2,980

2,820

2,720

2,620

2,540

2,470

2,590

2,340

2,340

2,230

2,160

2,200

2,140 

2.040

110,340

3,559

1.46

1.68

218,900

Aug.

1.960 

1,950 

1,900 

1,850

1,820

1,810

1,750

1,710

1,690

1,670

1,640

1,620 

1,590

*1,560 

1,560

1,510

1,460

1,440

1,410

1,380

1,360

1,350

1,360

1,370

1,390

1,370

1.550

1,330

1,600

1,840 

1,920

49,500

1,597

0.655

0.75

98,180

Sept.

1,650 

1,450 

1,430 

1,410

1,350

1,310

1,280

1,260

1,300

1,320

1,310

1,410 

1,350

1,260 

1,220

1,180

1,170

1,150

1,150

1,100

1.060

1,060

*1,080

1,100

1,170

2.040

2,010

1,450

1,300

1,300

59,590

1,520

0.541

0.60

78,550

Calendar year 1950: Max 32,100 Min 1,100 Mean 8,103 Cfsm 3.32 In. 45.08 Ac-ft 5,866,000

Water year 1950-51: Max 23,400 Min 1,060 Mean 6,636 Cfsm 2.72 in. 36.91 Ac-ft 4,804,000

Peak discharge (base. 18.000 cfs). Feb. 12 (3 a.m.) 23,800 cfs (16.19 ft); Apr. 8 (10 a.m.) 

19,500 (14.55 ft); Apr. 14 (11 a.m.) 20,900 cfs (15.12 ft); Apr. 29 (6 to 8 p.m.) 19,400 cfs (14.50 

ft); May 12 (9:30 a.m.) 24,900 cfs (l6.60 ft).

* Discharge measurement made on this day.

* Expressed in thousands.

b Stage-discharge relation affected by ice.
CLEARWATER RIVEB BASIN 

Potlatch Creek at Kendrick, Idaho

245

Location.--Lat 46°37', long. 116 0 39', in NW£ sec. 25, T. 38 N., R. 3 W., near center of 

main span on upstream side of Mill Street Bridge in Kendrick, 0.9 mile downstream 

from Bear Creek and 3.2 miles upstream from Middle Potlatch Creek.

Drainage area. 460 sq mi.

Records available. October 1945 to September 1951.

Gage. Wire-weight gage read once daily. Datum of gage is 1,198.2 ft above mean sea 

level, unadjusted.

Average discharge. 6 years, 469 cfs.

Extremes. Maximum discharge observed during year, 8,550 cfs Feb. 12 (gage height, 10.82 

ft, from graph based on gage readings); minimum observed, 5.9 cfs Aug. 23; minimum 

gage height observed, 4.85 ft Aug. 23, Sept. 23.

1945-51: Maximum discharge observed, 13,000 cfs Feb. 26, 1948 (gage height, 12.6 

ft, from floodmarks), by slope-area determination of peak flow; minimum observed, 4.3 

cfs Aug. 25, 1946; minimum gage height observed, 3.28 ft Oct. 12-16, 1945.

Remarks.--Records fair. No diversion or Regulation. 

Revisions (water years). W 1093: 1-946(M).

Rating tables, water year 1950-51 (gage height, In feet, and discharge, In cubic 

feet per second)

Oct. 1 to Feb. 11 Feb. 12 to Sept. 30

5.0 

5.2 

5.5 

6.0

30

70

155

355

6.5 

7.0 

8.0 

9.0 

10.2

610

970

2,250

4,120

7,000

4.8

4.9

5.0 

5.2 

5.4

5.7 

6.0 

6.5 

7.0 

7.5

136

253

515

865

1,330

8.0 

9.0

2,030

4,080

Discharge, In cubic feet per second, water year October 1950 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

Tbtal

Mean

Of sm

In.

Ac -ft

Oct.

18IB"

18

18

19

43

37

34

28

27

32

32

28

24

24

22

22

27

30

50

34

*29

27

27

24

43

68 

72

207

303 183"

1,568

50.6

0.110

0.13

3,110

Nov.

122

291

211

179

108

89

72

89

89

70

68

57

55

55

52

50

BT

84

77

84

82

129

227

271

480

420

295 

239

199

163

-

4,459

149

0.324

0.36

8,840

Dec.

203

179

T63" 148

203

195

816

694

505

*505

530

515

445

343

445

480

455

445

430

430

420

470

1,750

1,840

1,070

793

640 

545

535

730

706

17,628

569

1.24

1.43

34,960

Jan.

616

550

594

588

530

425

385

375

380

323

339

323

30b 450"

594

772

*816

730

545

495

475

445

347

415

594

1,000

1,250 

545

450

370

327

16,331

527

1.15

1.32

32,390

Feb.

311

355

343

319

307

279

271

545

1,930

5,040

6,820

6,800

2,770

1,760

1,400

1,030

825

801

647

582

515

449

372

388

432

298

280 

*258

_

_

-

36,127

1,290

2.80

2.92

71,660

Mar.

294

280

276

271

249

240

224

184

224

180

176

T6T

245

388

1,170

1,930

1,080

825

1,000

1,520

1,890

1,460

1,050

1,180

1,780

2,030

1,950 

1,720

1,610

1,460

1,240

28,310

913

1.98

2.29

56,150

Apr.

1,520

1,760

1,820

2,030

1,930

1,750

1,540

1,370

1,170

979

841

762

718

*785

740

654

588

551

527

473

388

341

317

276

253

240

245 

276

438

594

25,876

863

1.88

2.09

51,320

May

536" 421

327

249

266

280

245

249

253

219

195

253

245

362

388

308

253

236

203

176

*16S

154

140

130

127

108

108 

102

89

87

82

6,756

218

0.474

0.55

13,400

June

77

72

70

64

92

114

192

351 1§9"

133

111

102

100

82

77

68

61

59

*54

52

49

46

43

47

52

55

46 

40

35

3_1

2,574

85.8

0.187

0.21

5,110

July

30

27

27

31

49

47

39

34

31

27

24

23

22

22

*28

20

15

18

16

16

16

15

13

13

13

12

11 

10

12

11

12

684

22.1

0.048

0.06

1,360

Aug.

12

12

10

10

10

10

10

11

10

9.5

9.5

10

11

*9.0

9.5

10

9.5

10

9.0

8.5

7.1

6.5

5.9

678

6.2

7.1

6.8 

6.8

11

11

IA

289.7

9.35

0.020

0.02

575

Sept.

14

11

10

10

8.5

7.7

7.7

7.4

6.8

7.1

8.0

8.0

8.0

8.5

7.1

6.8

7.1

6.8

7.4

6.8

7.1

6.8

*6.5

678

6.8

10

10 

15

IT

12

256.7

8.56

0.019

0.02

509

Calendar year 1950: Max 6,780 Mln 12 Mean 572 Cfsm 1.24 In. 16.89 Ac-ft 413,900

Water year 1950-51; Max 6,820 Mln 5.9 Mean 386 Cfsm 0.839 In. 11.40 Ac-ft 279,400

Discharge measurement made on this day.
246 CLEARWATER RIVER BASIN

Clear-water River at Spalding, Idaho

Location. Lat 46°25' , long. 116°51' , in lot 22, sec. 22, T. 36 N., R. 4 ¥., on right 

bank a quarter of a mile downstream from Lapqai Creek and three-eighths of a mile 

northwest of Spalding Post Office.

Drainage area.--9.570 sq mi, approximately. 

Records available. March 1926 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 770 ft (from comparison with gage 2,300 

Ft upstream). Prior to Oct. 1, 1928, staff gage 2,300 ft upstream at datum 772.49 ft 

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

Average discharge.--25 years, 14,840 cfs.

Extremes. Maximum discharge during year, 73,800 cfs May 12 (gage height, 14.82 ft); minimum, 2,070 cfs Sept. 22 (gage height, 2.62 ft).

1926-51: Maximum discharge, 177,000 cfs May 29, 1948; maximum gage height, 25.6 ft 

Jan. 5, 1928 (present site and datum), from floodmark (ice Jam); minimum, probably less 

than 500 cfs Jan. 9, 1937, during period of Ice effect.

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

diversions from tributaries; slight diurnal fluctuation at times caused by powerplant 

on South Fork.

Discharge, in cubic feet per second, water year October 195O 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

Total

Mean

Cf sm

In.

Ac-ft

Oct.

3,530

3,370

5.290

3,290 

5,47O

5,140 

7,320

5,990

5,260

5,960

6,130

5,820 

5,520

5,24O

4,940

5,420

5,520

5,450

7,900

7,410

*6,210

5,960

6,16O 

5,90O 

5,770

5,880

7,230 

7,140

14,400

21.400

17,400

209,420

6,755

0.706

0.81

415,400

Nov.

14.2OO

14.800

14.0OO

12,700 

12,700

13,500 

13,000

13,800

12,600

10,300

9,930

10,400 

9,580

8,880

8,750

7,840

8,36O

8,720

8,620

7.590

8,130

8,680

9,780 

10,90O 

13 , 100

14,400

13,500 

12,600

11,600

10,900

-

333,860

11,130

1.16

1.30

662,200

Dec.

11,200

1O,600

9,720

9,890 

10,400

8.950 

12,100

14,200

11,900

* 11,2OO

11,400

11,700 

12,000

11,400

11,000

10,900

10,800

1O,600

1O,3OO

1O,80O

11,400

11,400

17,OOO 

25.200 

23,100

23,700

20,800 

18,800

17,600

16,700

16,800

423,560

13,660

1.43

1.65

840,100

Jan.

15.200

14,5OO

15,000

14,500 

13.7OO

12 , 600 

11,200

10,100

10,700

10,800

10,000

9,780 

9,610

10,OOO

10,900

*11,OOO

11,500

11,400

10,400

9,61O

9,400

9,540

9,190 

8,850 

9,78O

11,6OO

12,900 

9,680

b5,800

b5.200

b5,200

329,640

10,630

1.11

1.28

653,800

Feb.

bS.500

b7,500

bll,000

bll,500 

bll,000

blO.500 

blO,OOO

14,6OO

23,600

41,700

46,500

54,700 

38,800

29,300

24,600

21,800

19,000

17,600

16,2OO

14 , 900

14,000

13,300

12,400 

12,000 

12,000

11,300

10,3OO 

9,960

_

_

-

525,560

18,770

1.96

2.04

*1,042

Mar.

*10,000

9,640

9,360

9,360 

9,330

S,990 

8,720

8,29O

8,390

8,490

8,OOO

7.900 

8,490

9,820

11,400

15,900

13,700.

11,900

11,600

13,200

14,300

13,600

12,300 

11,9OO 

13,200

14,700

16.000 

15,500

15,4OO

16,000

15,700

361,080

11,650

1.22

1.40

716,200

Apr.

16.100

18,8OO

23,700

29,400 

34,300

38,500 

41,2OO

43,30O

41,500

38,4OO

35,600

34,600 

*37,000

44,900

46,600

44,400

44,200

46,300

47,100

42,000

36,300

32,200

29,400 

28,800 

29,400

31,5OO

34,300 

38,OOO

45,800

47.600

-

*1,101.2

36,710

3.84

4.28

*2,1S4

May

41,60O

36,000

32,300

31.800 

35,100

41,700 

58,300

61,500

58,100

60,300

66,300

70.400 

63,OOO

58 , 900

51,800

49,100

49,900

52,000

52,000

51,400

*51,400

54,000

61,600 

67,50O 

67,600

62,200

59,100 

61,200

54,500

46,900

41,200

*1,648.7

53,180

5.56

6.41

*3,270

June

36,300

32,400

30,300

28,600 

30,300

33,700 

32,500

33,20O

29,700

29,400

31,900

36,400 

37,300

38,500

41,200

45 .500

41,600

38,000

*34,100

31,800

29,600

27,300

25,400 

24,600 

26,2OO

25,400

22,OOO 

21,100

19,800

18.400

-

950,800

31,050

5.24

5.62

*1,846

July

17,80O

17,800

17,900

17,600 

20.200

17,400 

16,400

14,700

15,600

12 , 900

12,900

11,700 

11,000

10,600

*\0,400

10,100

9,540

9,010

8,470

8,050

7,560

7,120

6,790 

6,490 

6,500

6,440

6,070 

5,680

5,510

5,560

5.220

536,810

10,860

1.15

1.51

668,100

Aug.

4.940

4,800

4,640

4,460 

4,350

4,350 

4,150

5,930

5,800

3,740

3,660

3,580 

3,550

*3,450

3,350

5,270

5,150

5,090

3,000

2,920

2,840

2,780

2J50 

5,060 

5,450

3,250

5,570 

2,880

3,000

3,490

3,950

110,920

5,578

0.574

0.45

220,000

Sept.

5,640

3,230

3,020

2,940 

2,840

2,710 

2,660

2,550

2,570

2,640

2,590

2,690 

2,840

2,680

2,530

2,420

2,370

2,540

2,280

2,250

2,180

2.140

*2,150 

2,170 

2,250

2,750

5.820 

5,270

2,710

2,570

-

79,740

2,658

0.278

0.51

158,200

Calendar year 1950: Max 91,900 Min 2,40O Mean 21,110 Cfsm 2.21 In. 29.95 Ac-ft 15,280,000

Water year 1950-51: Max 70,400 Min 2,140 Mean 17,510 Cfsm 1.83 In. 24.84 Ac-ft 12,680,OOO

Peak discharge (base. 50.OOP cfs).--Feb. 12 (5:5O a'.m.) 57,8OO cfs (15.44 ft); May 12 (12 m. to 

2 p.m.) 73,800 cfs (14.82 ft); May 24 (4 p.m.) 71,100 cfs (14.57 ft).

* Discharge measurement made on this day.

* Expressed in thousands.

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

Snake River near Clarkston, Wash.

247

Location. Lat 46°25'30", long. 117°10'30", in lot 1, sec. 16, T. 11 N. , R. 45 E., on 

right bank 2 miles upstream from Alpowa Creek, 7 miles downstream from Clarkston, and 

134 miles upstream from mouth.

Drainage area.--103,200 sq mi, approximately.

Records available. October 1915 to September 1922 and August 1928 to September 1951 in 

reports of Geological Survey. October 1909 to September 1933 in State Water-Supply 

Bulletin 5. Prior to October 1935, published as at Riparia."

Gage. Water-stage recorder. Datum of gage is 670 ft above mean sea level (Corps of Engineers benchmark). Prior to Sept. 12, 1917, staff gage and Sept. 12, 1917, to Sept. 30, 

1922, Aug. 6, 1928, to Sept. 30, 1935, chain gage at site 66 miles downstream at different datum.

Extremes. Maximum discharge during year, 182,000 cfs May 24, 25; maximum gage height, 

29.37 ft May 25; minimum, 16,500 cfs Sept. 23 (gage height, 10.35 ft); minimum daily, 

19,200 cfs Sept. 16, 23.

1909-51: Maximum discharge, 369,000 cfs May 29, 1948 (gage height, 40.36 ft, from 

high-water mark on gage well); minimum observed, 10,600 cfs 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 ft, Riparia site and datum, June 5, 1894, determined from 

floodmarks by United States Weather Bureau (discharge, 409,000 cfs).

Remarks. Records excellent. Small diversions by pumping between this station and station 

at Oxbow, Oreg. Large diurnal fluctuation caused by powerplant on Clearwater River 

above Lewiston, Idaho.

Revisions (water years).--W 463: 1916. W 933: 1937.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

11.0

16.0

24.0

29.2

19,200

47,200

117,000

179,000

Discharge, in cubic feet per second, water year October 1950 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

Total 

Mean

Ac- ft

Oct.

26,000 

24.000 

25,500 

26,000 

25,500

30,200 

34 , 100 

34,100 

29,200 

31,400

30,200 

29,700 

30,800 

29,200 

29,700

28,100 

30,800 

30,800 

32,400 

34,600

33,000 

30,800 

30,200 

30,800 

30,200

29,700 

33 , 000 

32,400 

40,600 

54.400 

52,100

989,500 

31,920 

*1,963

Nov.

47.200 

47,200 

47,200 

44,500 

43,200

43,200 

*43,200 

43,200 

39,400 

40,000

37,600 

38,200 

37,000 

35,800 

35,200

35,200 

35,800 

36,400 

34,600 

31J 400

33,600 

34 , 600 

37,600 

37,600 

40,000

39,400 

41,200 

40,600 

40,000 

39,400

*1,179.5 

39,320 

*2,340

Dec.

39 , 400 

38,200 

35,800 

35,800 

37,000

54.600 

41,200 

45,800 

43,200 

41,900

41,200 

41,900 

41 , 900 

41,200 

40,600

*40,000 

38 , 800 

39,400 

38,200 

38,200

39,400 

39 , 400 

43,200 

55 . 100 

52,800

53,600 

50,000 

47,200 

45,800 

44,500 

45,800

tl, 311.1 

42,290 

*2,601

Jan.

44,500 

43,200 

43,200 

41,900 

41,900

41,200 

37,000 

35,800 

34 , 600 

34,600

35.200 

35,800 

34,600 

35,800 

38,800

40,600 

41,900 

42,600 

41 , 200 

40,600

39 , 400 

39 , 400 

38,200 

37,600 

38,800

42,600 

45.800 

45,200 

38,200 

34,600 

55 . 600

«.,218.4 

39,300 

*2,417

Feb.

33,000 

31.900 

34,600 

38,200 

40,600

41,900 

*47,200 

55,100 

78,300 

102,000

110,000 

125.000

108,000 

93,600 

81,900

72,400 

66,800 

62,000 

58,800 

55,100

52,800 

52,100 

50,000 

50,700 

50,000

47,900 

45,200 

44,500

*1, 729. 6 

61,770 

*3,431

Mar.

43,800 

43,200 

41,900 

40 . 600 

*41,900

41 , 900 

42,600 

42,600 

42,600 

43,200

42,600 

42,600 

42,600 

43 , 800 

47 , 200

58,800 

60,400 

59,600 

57,400 

58,100

62,800 

65,200 

63,600 

63,600 

66 , 000

68,400 

69,200 

70.8QO 

69,200 

70,000 

68,40O

*1,674.6 

54,020 

*3,322

Apr.

68.400 

*70,800 

79,200 

88,200 

98,500

108,000 

118,000 

125,000 

122,000 

119,000

114,000 

112,000 

114,000 

123,000 

129, QOQ

128,000 

124,000 

125,000 

126,000 

120,000

112,000 

102,000 

94 , 500 

90,900 

89,100

89,100 

90,000 

93 , 600 

106 , 000 

118,000

1=3,197.3 

106 , 600 

*6,342

May

112,000 

104,000 

97 , 500 

96 . 500 

100,000

110,000 

131,000 

146,000 

148,000 

151,000

*157,000 

167,000 

162,000 

156,000 

142,000

135,000 

 141,000 

147,000 

153,000 

153,000

151,000 

152,000 

161,000 

174,000

:L 7 g^poo

178,000 

171,000 

*L75,000 

174,000 

161,000 

147,000

*4,532 

146,200 

*8,989

June

114^000 

106,000 

104,000

106,000 

104,000 

104,000 

99,500 

94,500

95,500 

99 , 500 

104,000 

108,000 

114,000

123,000 

125,000 

123,000 

119,000 

112,000

106,000 

102,000 

94,500 

90,000 

89,100

83,700 

81,900 

79,200 

75,600 

71.600

«,083.6 

102,800 

*6,116

July

70,000 

70,800 

72.400 

66,800 

71,600

68,400 

65,200 

58,800 

55,100 

*53,600

51,400 

46 , 500 

45,800 

43 , 800 

42 , 600

41,900 

40,600 

39,400 

37,600 

35,800

33,600 

33,600 

33,000 

31,400 

31,400

30,800 

30,200 

29,200 

28,600 

28,600 

28 . 100

H,416.6 

45,700 

*2,810

Aug.

28.100 

27 , 600 

27,000 

26,500 

26,500

26,500 

27,000 

27,000 

25,500 

26,000

25,500 

25,000 

24,500 

23,500 

23,000

22,000 

22,500 

22,000 

21 , 500 

20.600

20.600 

20,600 

* 22, 500 

23,000 

23,500

24,000 

23,000 

23,000 

23,500 

23,500 

24,500

749,500 

24,180 

*1,487

Sept.

24.500 

23,000 

22,000 

22,000 

21,500

21,000 

20,600 

20,100 

20,100 

20,100

20,100 

20,100 

20,100 

20,600 

20,600

19 . 200 

21,100 

20,600 

20,100 

20,600

20,100 

20,100 

19 , 200 

19 , 700 

20,100

21,100 

22,000 

22,500 

22,000 

22 , 000

626,800 

20,890 

*1,243

Calendar year 195O: Max 200,000 Min 17,OOO Mean 61,400 Ac-ft 44,460,000 

Water year 1950-51: Max 179, OOO Min 19,200 Mean 59,480 Ac-ft 43,060,000

* Discharge measurement made on this day.

* Expressed in thousands.
248 PAL00SE RIVER BASIN

Palouse River at Hooper, Wash.

Location..--Lat 46°45'30" ) long. 118°08'50", in SE^ sec. 27, T. 15 N., R. 37 E., on left 

bank 150 ft downstream from State Highway 11B bridge at Hooper and 0.4 mile upstream 

from Cow Creek.

Drainage area. 2,540 sq mi (revised), approximately.

Records available.--April 1897 to April 1907, June 1908 to March 1916, February to September 1951 (some years fragmentary prior to 1914). Prior to 1904, sometimes published 

as "near Hooper."

Gage.--Water-stage_recorder. Altitude of^gage is 1,040 ft (from topographic map). Apr. 1

o Sept. 8, 1897, staff gage at site 2j miles upstream at different datum. Sept. 9, 'at 1897, to March 1916, various staff gages at site l| miles upstream from present site £

different datum. Feb. 8 to Mar. 28, 1951, staff gage at present site and datum.

Extremes.--Maximum discharge during period, 9,540 ofs Mar. 16 (gage height, 12.09 ft, from 

high-water mark on gage well); minimum, 12.5 cfs Aug. 14, 15 (gage height, 3.29 ft).

1897-1916, 1950-51: Maximum discharge observed, 27,800 cfs Mar. 2, 1910 (gage 

height, 21.0 ft, site and datum then in use); no flow for part of June 25, 1910.

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

No regulation. Diversions above station for irrigation, domestic, and municipal use.

Rating table, Feb. 8, to Sept. 30, 1951 (gage height, 

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

3.3 

3.5 

4.0 

4.5 

5.0 

5.5

71

146

265

430

6.0

7.0

8.0

9.0

10.0

11.6

640

1,240

2,060

3,240

4,820

8,200

Discharge, in cubic feet per second, February 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

Total

Mean

Ac- ft

Oct. Nov. Dec.

_

-

-

-

-

_

t378

_

-

_

_

-

-

1

t679

_

-

_

_

_

-

_

_

-

_

_

-

_

_

-

Jan.

_

-

-

tl,690

-

_

:_-

__-

-

-

__-

tl.OOO

_

_

-

_

_

-

_

_

-

_

_-

Feb.

.

-

»

-

-

_

3,310

5,180

6,800

5,800

7,240

7,720 

4,320

3,450

2,840 

2,480

a2,200

1,960

1,620

1,660

1,540

1,310

1,200

1,200

1,240

1,060

1,000

_

_

-

_

_

-

Mar.

940

940

a900

a830

765

*765

765 

740

715

715

715

715

940

1,460

2,210

*8,200 

a4,500

a3,000

2,540

2,480

2,480

2,310

2,160

a2,100

a2,200

32,300

a2,200

1,780

1,580

1,620

1,620

57,185

1,845

113,400

Apr.

1,540

1,460

1,500

1,580

1,700

1,820

1,860 

1,780

1,700

1,580

1,380

1,200

1,100 

1,000

1,030

1,060 

1,000

910

850

820

765

715

*690

665

640

600

534

*'53~8 510

590

33,117

1,104

65,690

May

715

665

578

538

526

518

534 

530

510

*506

482

462

458

470

466

474 

430

426

412

398

374

350

3S5C

310

292

283

277

268

265

271

_2_56

13,369

431

26,520

June

238

225

215

*205

228

265

356 

398

582

550

420

313

295

274

268

256 

247

235

222

210

198

188

177

169

157

150

142

135

126

122

7,566

252

15,010

July

115

TTO

104

98

*96

98

110 

98

104

87

93

78

76 

76

75

71 

68

*67

63

67

64

55

53

48

44

42

40

39

39

36

*35

2,249

72.5

4,460

Aug.

32

32

32

33

31

30

28 25'

25

25

25

24

23 

18

11

19.5 

19

19

19

18.5

18

*18

18.5

18

18.5

18

17

17

18

19.5

21

696.5

22.5

1,380

Sept.

22

22

32

33

32

30

27 

26

26

26

27

27

25

23

22

23

24

23

25

25

25

25

25

25

25

27

30

30

33

36

801

26.7

1,590

Calendar year : Max Mln Mean Ac -ft

Water year : Max Mln Mean Ac-ft

Discharge measurement made on this day.

Result of discharge measurement made on this day.

No gage-height record; discharge estimated on basis of records for Asotin Creek near Asotin.
PALOUSE RIVER BASIN 249

Cow Creek at Hooper, Wash.

Location. Lat 46°45'57", long. 118°08'45", in NW£ sec. 26, T. 15 w., R. 37 E., on left 

bank at downstream side of highway bridge, half a mile upstream from mouth, and half 

a mile north of Hooper.

Drainage area. 370 sq mi.

Records available. February to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,070 ft (from topographic map).

Extremes. Maximum discharge during period, 136 cfs Feb. 9 (gage height, 3.10 ft); no 

flow July 27 to Aug. 3.

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

Probably some small diversions for domestic use. No regulation.

Rating table, Feb. 1 to Sept. 30, 1951 (gage height, 

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

1.1

1.2

1.3 

1.5

.7 

2.4

7.0

2.2 

2.6 

3.0

16.0

36

74

130

Discharge, In cubic feet per second, February to September 1951

Bay

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct. Nov. Dec.

t!2.5

.

-

-

Jan.

t23

_

-

-

Feb.

a31

a3l

a28

2i

24

24

29

*34

106

94

70

50

45

43

43

42

42

42

42

42

40

38

39

40

40

42

43

44

-

_

-

1,212

43.3

2,4OO

Mar.

45 

45

47

52

55

*57

62

64

70

67

7C

74

77

90

88

90

97

91

92

94

96

97

97

97

97

99

100

102

103

104

IPS

2,525

81.5

5,010

Apr.

106 

108

110

110

112

112

114

114

114

115

115

114

114

112

112

110

109

104

103

103

102

102

*100

99

100

104

106

109

114

115

-

3,262

109

6,470

May

112 

110

115

115

115

115

116

112

108

*97

91

91

90

87

84

83

79

74

66

64

70

73

77

74

68

62

60

57

57

58

54

2,634

85.0

5,220

June

55 

55

53

*53

59

65

68

68

67

66

68

65

63

61

59

56

55

53

49

48

47

47

46

44

43

42

41

39

39

39

-

1,613

53.7

3,200

July

38 

39

37

36

*36

36

35

33

33

31

29

27

25

24

22

21

20

 16.5

12

6.8

5.1

10

14.5

13.5

11

7.0

0

0

0

O

*0

618.4

19.9

1,230

Aug.

0 

O

4.4

5.8

5.3

4.8

5.6

6.0

6.5

6.5

5.1

5.1

4.8

4.6

3.7

4.2

4.6

4.8

5.3

5.3

3.9

*2.4

2.6

3.1

4.2

4.2

3.9

4.8

6.3

7.6

6.8

142.2

4.59

282

Sept.

5.8 

5.3

5.1

6.3

5.3

5.1

4.4

3.3

2.6

2.2

1.7

2.6

4.4

1.9

1*5

1.7

4.2

4.2

a3.0

a2.5

a2.8

a4.0

a4.1

a4.3

a4.7

a5. 2

a5.2

a5. 3

a5.8

a6.7

-

121.2

4.04

240

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

t Result of discharge measurement.

a No gage-height record; discharge estimated on basis of records for nearby streams.
250 MISCELLANEOUS DISCHARGE MEASUREMENTS

Measurements of streamflow 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 1950 to September 1951

Henrys Fork basin, Idaho

Date

Mar. 15

Stream

Teton River. ......

Tributary to or 

diverting from 

Henrys Fork ........

Locality

NV/iNEt sec. 29, T. 7 N., R. 44 E., about 

300 ft upstream from powerplant diversion tunnels.

Discharge 

(cfs)

320

Tributaries between Portneuf River and Salmon Falls Creek, Idaho

NEiNEi sec. 4, T. 10 S., R. 18 E.,

J mile above Twin Falls of Snake River

and plant of Idaho Power Co., 3i miles

north of Kimberly. 

NEiSE^ sec. 32, T. 9 S., R. 18 E., on

north side of Snake River 10O ft above

point where spring cascades down to

river. 

SE^NWi 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 side of Snake River,

i mile above Shoshone Power Plant. 

Outlet to river in NWjSWj sec. 31, T.

9 S., R. 18 E., on north side of Snake

River, JUst above Shoshone Palls, on

D. T. Heter property. 

SWiNWi sec. 34, T. 93., R. 17 E., on

north side of Snake River, £00 yards

below Rim to Rim bridge, 2 miles north

of Twin Falls. 

SW&SW£ sec. 28, T. 9 S., R. 17 E., at

point of entry to Snake River, 4 miles

north of Twin Falls. 

SEjSEi sec. 19, T. 93., R. 17 E., 3/8

mile above point of entry to river. 

SWiSWi 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., Si miles

above Devils Washboard Falls in Snake

River and 7 miles northeast of Buhl.

NE-t sec. 10, T. 93., R. 15 E., 4|

miles above Devils Washboard Falls and

6 miles northeast of Buhl. 

SWiSEi sec. 2, T. 9 S., R. 14 E., at

Clear Lakes plant Idaho Power Co., 4^

miles north of Buhl. 

NV/iSEi sec. 4, T. 9 S., R. 14 E., 2 miles

below Clear Lakes outlet and 5f miles

northwest of Buhl. 

SEiNV/i sec. 33, T. 8 S., R. 14 E., at

footbridge over outlet to Snake River,

7 miles northwest of Buhl. 

SEjSWi sec. 28, T. 8 S., R. 14 E., on

east side of Snake River, 0.35 mile

above Blind Canyon Spring and 7 miles

northwest of Buhl. 

NE^SWi sec. 28, T. 8 S., R. 14 E., Just

upstream from Box Canyon, 7j miles

northwest of Buhl.

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.... 

Banbury Springs. 

Unnamed spring..

Blind Canyon 

Spring.

Snake R iver.......

* Discharge represents actual net spring flow adjusted for diversions and surface flow.

Big Lost River basin, Idaho

Oct. 2 

May 17

18 

18

June 18 

Aug. 17

17 

17 

17

17 

17

Zollinger ditch. . . 

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

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

Unnamed canal ..... 

Big Lost River. . . . 

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

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

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

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

Big Lost River. .... 

., . .do. ............

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

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

Snake River. ....... 

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

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

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

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

Sec. 32, T. 8 N., R. 23 E. , 500 ft east 

of gaging station on Big Lost River 

(east channel) above Mackay Reservoir, 

3 miles upstream from Mackay Dam and 

7i miles northwest of Mackay. 

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

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

NW£ sec. 5, T. 2 N., R. 29 E., at diversion dam. 

NWjNwi sec. 5, T. 2 N., R. 29 E., below 

diversion dam. 

NWiNEj sec. 33, T. 3 N., R. 29 E., below 

bridge on U. S. Highway 20. 

SWiNEi sec. 24, T. 3 N. , R. 29 E. , above 

bridge on Edwards Boulevard.

Idaho Palls stage road ford, 20 miles 

east of Arco. 

NEiNEi sec. 33, T. 4 N., R. 30 E., at

Magazine Road crossing, 21 miles east 

of Arco. 

SWiSWi sec. 3, T. 4 N., R. 30 E., at West 

Monument Crossing, 9 miles southeast of 

Howe. 

SWiSWi sec. 27, T. 5 N., R. 30 E., 

8 miles southeast of Howe.

0 

5.58

9.54

2.06 

37.2 

31.9 

23.2

19.4

14.3

7.00 

4.77
MISCELLANEOUS DISCHARGE MEASUREMENTS 251

Miscellaneous discharge measurements In Snake River basin during water year 

October 1950 to September 1951 Continued

Big Lost River basin, Idaho Continued

Date

Aug. 17

Stream

Big Lost .River. . . .

Tributary 

diverting

to or 

from 

Snake River. ....... Sec. 22, T. 

southeast

5 

of

Locality

N., R. 

Howe.

30 E., 7 miles

Discharge 

(cfs)

0

Tributaries and diversions between Salmon Falls Creek and Malad River

Mar. 23 Thousand Springs.. Snake River

Rlley Creek.

Bllllngsly Creek.

Birch Creek.......

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 ft upstream from line between sec. 1, T. 8 S., R. 13 E., and 

sec. 6, T. 8 S., .R. 14 E.

SW^-NEi sec. 6, T. 8 S., R. 14 E., at 

Hagerman Hatchery of U. S. Fish and 

Wildlife Service, 100 yds below confluence of Riley and Lewis Creek and 

100 ft below small unnamed spring entering from right, and 5 miles southeast of Hagerman.

Near line between sees. 31 and 32, T. 

7 S., R. 14 E. (spring heads in 

SWjNWi sec. 32) at E. W. Bean farm 

1/8 mile below head of creek and 3£ 

miles southeast of Hagerman.

SEiSEj see. 34, T. 6 S., R. 13 E., on 

Bud Smith property. J mile south of 

Malad River, and 2? miles north of 

Hagerman.

t1,140

* 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

Oct. 

Mar.

26 

29

Malad Springs. .... 

... .do.-. ..........

Snake River. ....... 

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

Springs head in SE£ sec. 24, T. 6 S., R. 

13 E., and enter Snake River In NWt 

sec. 34, T. 6 S., R. 13 E. , 3 miles 

north of Hagerman. 

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

1,270 

1,240

Canyon Creek basin, Idaho

May 23 Ake lateral No. 2. Mountain 

feeder

Home 

canal.

See. 

5

36, T. 2 S 

miles north

, R. 6 E., at head, 

of Mountain Home.

5.52

Boise River basin, Idaho

Oct. 13

May 23

Nov. 29

May 11

14

27

Sept. 17

Middle Fork Boise

River.

Little Camas Creek

Boise River. ......

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

Boise River. .......

South Fork Boise

River.

Snake River ........

. .. .do. .. . . .- ......

Sec. 4, T. 4 N., R. 7 E., at site of

former gaging station 1,000 ft above

confluence with North Fork.

NEj sec. 9, T. 1 S., R. 9 E., below

Little Camas Reservoir.

NWi sec. 11, T. 2 N., R. 3 E., £ mile

below diversion tunnel for Lucky Peak

Dam and 8 miles downstream from Moore

Creek.

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

251

27.5

127

153

10,100

4,450

3.190

Malheur River basin, Oreg.

Aug. 7

Apr. 11

Warmsprings Creek.

Nichol's artesian 

well.

North Fork Malheur 

River.

Willow Creek. ......

Near line between sees. 1 and 2 T. 19 

S., R. 37 E., 2£ miles northeast of 

Beulah.

SWi sec. 15, T. 14 S., R. 39 E., on 

Nichol's ranch 1 mile northeast of 

Ironside.

0.65

3.3

Burnt River basin, Oreg.

June 8 Warm Springs ...... South Fork Burnt 

River.

NWtSWj sec. 13, T. 13 S., R. 36 E., 

\ mile above Whlted Reservoir Dam and 

3 miles west of Unity.

1.4

Powder River basin, Oreg.

Sept 30 Eagle Creek. ...... Pov«Kier River.. ..... Sec. 7 or 18, T. 8 S. ,

above mouth of Skull

6 miles northwest of

R. 45 E., i

Creek and

New Bridge.

mile 91.2
252 MISCELLANEOUS DISCHARGE MEASUREMENTS

discharge measurements in Snake River basin during water year 

October 1950 to September 195l--Continued

Imnaha River basin, Oreg.

Date

July 25 

Aug. 5

Stream

Imnaha River ...... 

Indian Creek. .....

Tributary t 

diverting f

Snake River. 

Orande Ronde

rom--

River .

Locality

Sec. 25, T. 5 S., R. 47 E., at 

Coverdale guard station. 

85 sec.' 33, T. 1 S., R. 40 E., above 

North Fork, at former gaging station, 7 miles southeast of Imbler.

Discharge 

(cfs) 8

Z70 

6.78

Owyhee River basin, Oreg.

Oct. 18 Crooked Creek. .... Owyhee River ....... Highway bridge on Route 95, above 

Rattlesnake Creek, about 15 miles 

southwest of Rome.

10.3
INDEX

Page

Accuracy of field data and computed

results......................... 7-8

Acre-foot, definition of.............. 2

Afton, Wyo., Swift Creek near......... 22

Agencies other than Geological Survey,

records collected by............ 11

Agency Valley Reservoir, Oreg., contents of........................ ' 158

Ahsahka, Idaho, North Pork Clearwater

River near...................... 244

Ake lateral No. 2, discharge measurement of......................... 251

Alpine, Idaho, Snake River at......... 19

Alturas Lake Creek near Obsidian,

Idaho........................... 203

American Palls Reservoir at American

Palls, Idaho.................... 51

Anderson Ranch Dam, Idaho, Anderson

Ranch Reservoir at.............. 139

Fall Creek near..................... 137

South Fork Boise River at..........'. 140

Anderson Ranch Reservoir at Anderson

Ranch Dam, Idaho................ 139

Arco, Idaho, Big Lost River near...... 98

Argora, Idaho, Medicine Lodge Creek

near............................ 84

Arrowrock, Idaho, Arrowrock Reservoir

at.............................. 141

Boise River near.................... 142

Moore Creek near...................144,146

Robie Creek near.................... 145

Arrowrock Reservoir at Arrowrock,

Idaho........................... 141

Ashton, Idaho, Henrys Fork near....... 31

Asotin Creek near Asotin, Wash........ 237

Banbury Springs, Idaho, discharge

measurement of.................. 250

Banks, Idaho, North Pork Payette River

near............................ 174

South Fork Payette River near....... 164

Bannock Creek near Idaho City, Idaho.. 143 

Bear Creek near Wallowa, Oreg......... 234

Bear Valley Creek near Cape Horn,

Idaho........................... 214

Beaver Creek at Camas, Idaho.......... 83

at Dubois, Idaho.................... 82

at Spencer, Idaho................... 81

Bellevue, Idaho, Big Wood River near.. 108 

Bennett, Idaho, Lime Creek near....... 136

Little Camas Canal near............. 138

Beulah, Oreg., North Pork Malheur

River at........................ 155

North Fork Malheur River near....... 154

Big Creek near Big Creek, Idaho....... 215

Big Lost River at Howell Ranch, near

Chilly, Idaho................... 89

at Wild Horse, near Chilly, Idaho... 88 

below Mackay Reservoir, near Mackay,

Idaho........................... 97

discharge measurements of.......... 250-251

east channel of, above Mackay Reservoir, near Mackay, Idaho........ 90

near Arco, Idaho.................... 98

west channel of, above Mackay Reservoir, near Mackay, Idaho........ 91-92

Big Lost River basin, Idaho, discharge

measurements in............... 250-251

Big Wood River at Hailey, Idaho..... 106-107

below Magic Dam, near Richfield,

Idaho........................... Ill

near Bellevue, Idaho................ 108

near Ketchum, Idaho................. 103

Big Wood Slough at Hailey, Idaho...... 105

Billingsly Creek, Idaho, discharge

measurement of.................. 251

Birch Creek {tributary to Mud Lake),

near Reno, Idaho................ 85

Birch Creek (tributary to Snake River),

Idaho, discharge measurements of. 251 

Blackfoot, Idaho, Blackfoot River near 47 

Snake River near..................... 48

Blackfoot River near Blackfoot, Idaho.. 47 

Blaine, Idaho, Camas Creek near........ 109

Blaine County Investment Co.'s canal

near Howe, Idaho ................. 87

Blind Canyon Spring, Idaho, discharge

measurement of................... 250

Blue Lakes outlet, Idaho, discharge

measurement of................... 250

Blue Lakes Spring near Twin Palls,

Idaho............................ 70

Boise River at Boise, Idaho............ 149

at Dowling Ranch, near Arrowrock,

Idaho............................ 142

at Notus, Idaho...................... 151

discharge measurements of............ 251

diversions from.................... 147,150

Middle Fork, discharge measurements

of.......:....................... 251

near Twin Springs, Idaho............. 134

South Pork, at Anderson Ranch Dam,

Idaho............................ 140

near Featherville, Idaho.'.......... 135

Boise River basin, Idaho, gagingstation records in........... 134-151

Box Canyon Springs near Wendell, Idaho. 73 

Brailsford ditch near Hagerman, Idaho.. 100 

Bridge, Idaho, Raft River near......... 54

Briggs Creek, Idaho, discharge measurement of.......................... 250

Bruneau River, East Pork, near Hot

Spring, Idaho.................... 121

near Hot Spring, Idaho............... 123

near Winter Camp Ranch, Idaho........ 122

Bruneau River basin, Idaho, gagingstation records in..............121-123

Buffalo Pork near Moran, Wyo........... 16

Buhl, Idaho, Snake River near.......... 72

Bully Creek near Vale, Oreg............ 157

Bungalow ranger station, Idaho, North

Pork Clearwater River at......... 243

Burgdorf, Idaho, Secesh River near..... 218

Burnt River near Hereford, Oreg........ 194

Burnt River basin, Oreg., gagingstation records in.............. 193-194

Caldwell, Idaho, Lake Lowell near...... 148

Camas, Idaho, Beaver Creek at.......... 83

Camas Creek at....................... 80

Camas Creek (Big Wood River Basin)

near Blaine, Idaho............... 109

Camas Creek (Mud Lake Basin) at Camas,

Idaho............................ 80

at Eighteenmile shearing corral, near

Kilgore, Idaho................... 79

Cambridge, Idaho, Pine Creek near...... 184

Weiser River near.................... 183

Cape Horn, Idaho, Bear Valley Creek

near............................. 214

Middle Fork Salmon River near........ 213

Carey, Idaho, Little Wood River near..112,113 

Cascade, Idaho, Cascade Reservoir at... 172

North Pork Payette River at.......... 173

Cascade Reservoir at Cascade, Idaho.... 172

Catherine Creek near Union, Oreg....... 225

Cfs-day, definition of................. 2

Challis, Idaho, Challis Creek near..... 208

Salmon River near.................... 207

Challis Creek near Challis, Idaho...... 208

Chester, Idaho, Pall River near........ 35

Chilly, Idaho, Big Lost River near..... 88,89

Clarkston, Wash., Snake River near..... 4,247

Clayton, Idaho, Salmon River near...... 206

Clear Creek near Naf,

Idaho............................ 53

253
INDEX

Page

Clear Lakes Outlet, Idaho, discharge f 

measurement of.................. 250!

Clearwater River at Kamiah, Idaho..... 242J

at Spalding, Idaho.................. 246

North Pork, at Bungalow ranger station, Idaho..................... 243

near Ahsahka, Idaho............... 244

South Pork near Elk City, Idaho..... 240

near Grangeville, Idaho........... 241

Clearwater River basin, Idaho-Mont.,

gaging-station records in..... 238-246|

Computations, accuracy of, results of. 7-8i 

Contact, Nev., Salmon Palls Creek near 74; 

Contents, definition of............... 3

Control, definition of................ 3;

Cooperation, record of................ 1

Cottonwood Creek near Smoot, Wyo...... 21

Council, Idaho, Weiser River near..... 181

Cow Creek at Hooper, Wash............. 249

Crane Creek at mouth, near Weiser,

Idaho.....................:..... 189

near Midvale, Idaho................. 188

Crane Creek Reservoir near Midvale,

Idaho........................... 187

Crooked Creek near Rome, Oreg......... 130

Crystal Springs, Idaho, discharge

measurement of.................. 250

Cubic feet per second per square mile,

definition of................... 2

Cubic foot per second, definition of.. 2

Data, accuracy of..................... 7-8

explanation of...................... 3-7

Deadwood Reservoir near Lowman, Idaho. 160 

Deadwood River below Deadwood Reservoir, near Lowman, Idaho........ 161

near Lowman, Idaho.................. 162

Devils Corral Spring (lower outlet),

Idaho, discharge measurement of. 250 

Devils Corral Spring (upper outlet),

Idaho, discharge measurement of. 250 

Devils Washbowl Springs, Idaho, discharge measurement of........... 250

near Kimberly, Idaho................ 68

Drainage area, definition of.......... 3

Drewsey, Oreg., Malheur River near.... 152

Driggs, Idaho, Horseshoe Creek near... 39 

Teton Creek near.................... 38

Dubois, Idaho, Beaver Creek at........ 82

Eagle Creek, Oreg., discharge measurements of........................ 251

Elk City, Idaho, South Pork Clearwater

River near...................... 240

Emmett, Idaho, Payette River near..... 176

Pall Creek near Anderson Ranch Dam,

Idaho........................... 137

Pall River, diversions from........... 33,35

near Chester, Idaho................. 35

near Squirrel, Idaho................ 34

Peatherville, Idaho, South Pork Boise

River near...................... 134

Pish hatchery diversion at McCall,

Idaho........................... 167

Floods, special reports on............ 11

French Creek, Idaho, Salmon River near 219

Garden Valley, Idaho, South Pork

Payette River near.............. 163

Gold Creek, Nev., Owyhee River near... 126 

Wild Horse Reservoir near........... 125

Gooding, Idaho, Malad River near...... 117

Gooding Canal at Milner, Idaho........ 64

Goose Creek above Trapper Creek, near

Oakley, Idaho................... 59

Goose Creek basin, gaging-station

records in...................... 59-61

Grande Ronde River at La Grande, Oreg. 224 

at Rondowa, Oreg.................... 235

at Troy, Oreg....................... 236

near Hilgard, Oreg.................. 223

Grand Ronde River basin, Oreg.,

gaging-station records in 223-236 

Grangeville, Idaho, South Fork Clearwater River near................ 241

Grassy Lake, Idaho, contents of....... 44

Gros Ventre River at Kelly, Wyo....... 17

Gumboot Creek, Oreg., Imnaha River 

above........................ 200

Hagerman, Idaho, Brailsford ditch near. 100 

King Hill Canal near................. 118

Riley Creek below..........;......... 101

Riley Creek Springs near............. 99

Snake River near..................... 102

Hailey, Idaho, Big Wood River at. .....106-107

Big Wood Slough at................... 105

Haines, Oreg., Powder River near....... 196

Heise, Idaho, Snake River near......... 25

Henrys Pork at St. Anthony, Idaho...... 36

at Warm River, Idaho................. 30

diversions from...................... 32,36

near Ashton, Idaho................... 31

near Island Park, Idaho.............. 29

near Lake, Idaho..................... 27

near Rexburg, Idaho.................. 43

Henrys Fork basin, Idaho, gagingstation records in............... 27-46

smaller reservoirs in................ 44

Henrys Lake, Idaho, contents of........ 44

Hereford, Oreg., Burnt River near...... 194

Hilgard, Oreg., Grande Ronde River near 223 

Hoback River near Jackson, Wyo......... 18

Hooper, Wash., Cow Creek at............ 249

Palouse River at..................... 248

Hope, Oreg., Malheur River near........ 156

Horseshoe Bend, Idaho, Payette River

 near............................. 175

39 

123 

121

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. 

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

Idaho City, Idaho, Bannock Creek near.. 

Imnaha River above Gumboot Creek, Oreg.

87

86

232

12

143

200

at Imnaha, Oreg...................... 201

discharge measurement of............. 252

Imnaha River basin, Oreg., discharge

measurements in.................. 252

gaging-station records in...........200-201

Indian Creek, Oreg., discharge measurements of......................... 252

Indian Valley, Idaho, Little Weiser

River near....................... 185

Irwin, Idaho, Snake River near......... 24

Island Park, Idaho, Henrys Pork near... 29 

Island Park Reservoir near........... 28

Island Park Reservoir near Island Park,

Idaho............................ 28

Jackson, Wyo., Hoback River near....... 18

Jackson Lake at Moran, Wyo............. 13

Johnson Creek at Yellow Pine, Idaho.... 217

Jordan Creek above Lone Tree Creek,

near Jordan Valley, Oreg......... 128

Joseph, Oreg., East Fork Wallowa River

near............................. 226

Hurricane Creek near................. 232

Joseph powerplant tailrace at........ 230

Silver Lake Canal at................. 231

Wallowa Falls powerplant tailrace near 227 

Wallowa Lake near.................... 228

Wallowa River at..................... 229

Joseph powerplant tailrace at Joseph,

Oreg............................. 230

Kamiah, Idaho, Clearwater River at..... 242

Kelly, Wyo., Gros Ventre River at...... 17

Kendrick, Idaho, Potlatch Creek at..... 245

Ketchum, Idaho, Big Wood River near.... 103

Warm Springs Creek near.............. 104

Kilgore, Idaho, Camas Creek near....... 79

Kimberly, Idaho, Devils Washbowl Spring

near............................. 68

Snake River near..................... 69

King Hill, Idaho, Snake River at. ...... 4,119

King Hill Canal near Hagerman, Idaho... 118 

Knox, Idaho, South Fork Salmon River

near............................. 216

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

Page 

Lake, Idaho, Henrys Fork near......... 27

Lake Fork. See Payette River, Lake

Fork.

Lake Fork Reservoir near McCall, Idaho 169 

Lake Irrigation District Canal near

McCall, Idaho................... 170

Lake Lowell near Caldwell, Idaho...... 148

Lake Walcott near Minidoka, Idaho..... 55

diversions from..................... 56,57

Lime Creek near Bennett, Idaho........ 136

Little Camas Canal at heading, near

Bennett, Idaho.................. 138

Little Camas Creek, Idaho, discharge

measurement of.................. 251

Little Lost River near Howe, .Idaho.... 86

Little Salmon River at Riggins, Idaho. 221 

Little Weiser River near Indian

Valley, Idaho................... 185

Little Wood River at Campbell Ranch,

near Carey, Idaho............... 112

at Shoshone, Idaho.................. 116

near Carey, Idaho................... 113

near Richfield, Idaho............... 115

Lochsa River near Lowell, Idaho....... 239

Lost Creek near Tamarack, Idaho....... 180

Lost River-Mud Lake basins, gaging

station records in.............. 78-98

Lost Valley Reservoir near Tamarack,

Idaho........................... 179

Lostine River near Lostine, Oreg...... 233

Lowell, Idaho, Lochsa River near...... 239

Selway River near................... 238

Lowman, Idaho, Deadwood Reservoir near 160 

Deadwood River near................161,162

South Fork Payette River at......... 159

McCall, Idaho, fish hatchery diversion

at.............................. 167

Lake Fork Payette River near.......168,171

Lake Fork Reservoir near............ 169

Lake Irrigation District Canal near. 170 

North Fork Payette River at......... 166

Payette Lake at..................... 165

Mackay, Idaho, Big Lost River

near.......................90,91-92,97

Mackay Reservoir near............... 95

Sharp ditch near.................... 96

Warm Spring Creek near.............. 93,94

Mackay Reservoir near Mackay, Idaho... 95 

Magic Reservoir near Richfield, Idaho. 110 

Malad River near Gooding, Idaho....... 117

Malad River basin, Idaho, discharge

measurement in.................. 251

gaging station records in..........103-118

Malad Springs, Idaho, discharge measurement of...................... 251

Malheur River at Little Valley, near

Hope, Oreg...................... 156

below Warmsprings Reservoir, near

Riverside, Oreg................. 153

near Drewsey, Oreg.................. 152

North Fork, above Agency Valley

Reservoir, near Beulah, Oreg.... 154

at Beulah, Oreg................... 155

Malheur River basin, Oreg., discharge .

measurements in................. 251

gaging-station records in..........152-158

reservoirs in....................... 158

Mann Creek near Weiser, Idaho......... 191

Map of the United States..............

May, Idaho, Pahsimeroi River near..... 209

Medicine Lodge Creek at Ellis Ranch,

near Argora, Idaho.............. 84

Mesa, Idaho, Mesa Orchards Canal near. 182 

Mesa Orchards Canal near Mesa, Idaho.. 182 

Midvale, Idaho, Crane Creek near...... 188

Crane Creek Reservoir near.......... 187

Milner, Idaho, Gooding Canal at....... 64

Milner low-lift canal near.......... 63

North Side Twin Falls Canal at...... 65

P. A. lateral near.................. 62

Snake River at...................... 67

South Side Twin Falls Canal at...... 66

Milner low-lift canal near Milner,

Idaho........................... 63

Minidoka, Idaho, Lake Walcott near.... 55

North Side Minidoka Canal near...... 56

Snake River near.................... 58

Minidoka, Idaho, South Side Minidoka

Canal near....................... 57

Moore Creek above Robie Creek near

Arrowrock, Idaho................. 144

near Arrowrock, Idaho................ 146

Moran, Wyo., Buffalo Fork near......... 16

Jackson Lake at...................... 13

Pacific Creek near................... 15

Snake River at....................... 14

Mountain Home feeder canal near Mountain Home, Idaho................. 120

Mud Creek near Tamarack, Idaho......... 220

Mud Lake near Terreton, Idaho.......... 78

Mud-Lake-Lost River basins, Idaho,

gaging-station records in........ 78-98

Murphy, Idaho, Snake River near........ 4,124

Naf, Idaho, Clear Creek near........... 53

Neeley, Idaho, Snake River at.......... 52

Niagara Springs, Idaho, discharge

measurement of................... 250

Nichols artesian well, Oreg., discharge

measurement of................... 251

North Powder, Oreg., Wolf Creek near... 197 

North Side Minidoka Canal near Minidoka, Idaho...................... 56

North Side Twin Falls Canal at Milner,

Idaho............................ 65

Notus, Idaho, Boise River at........... 151

Nyssa, Oreg., Owyhee Reservoir near.... 132

Oakley, Idaho, Goose Creek near........ 59

Oakley Reservoir near................ 61

Trapper Creek near................... 60

Oakley Reservoir near Oakley, Idaho.... 61

Obsidian, Idaho, Alturas Lake Creek

near............................. 203

Salmon River near.................... 202

Order, new downstream, of listing

gaging stations.................. 3

Owyhee Dam, Oreg., Owyhee River below.. 133 

Owyhee Reservoir at Owyhee Dam, near

Nyssa, Oreg...................... 132

Owyhee River above................... 131

Owyhee River above China diversion dam,

near Owyhee, Nev................. 127

above Owyhee Reservoir, Oreg......... 131

below Owyhee Dam, Oreg............... 133

near Gold Creek, Nev................. 126

near Rome, Oreg...................... 129

Owyhee River basin, Nev.-Oreg., gagingstation records in..............125-133

Oxbow, Oreg., Snake River at........... 199

P. A. lateral near Milner, Idaho....... 62

Pacific Creek near Moran, Wyo.......... 15

Pahsimeroi River near May, Idaho....... 209

Palouse River at Hooper, Wash.......... 248

Palouse River basin, Wash., gagingstation records in..............248-249

Panther Creek near Shoup, Idaho..'...... 211

Payette Lake at McCall, Idaho.......... 165

Payette River, Lake Fork, above Jumbo

Creek, near McCall, Idaho........ 168

below Lake Irrigation District 

Canal, near McCall, Idaho........ 171

near Emmett, Idaho................... 176

near Horseshoe Bend, Idaho........... 175

near Payette, Idaho.................. 177

North Fork, at Cascade, Idaho........ 173

at McCall, Idaho................... ' 166

near Banks, Idaho.................. 174

South Fork, at Lowman, Idaho......... 159

near Banks, Idaho.................. 164

near Garden Valley, Idaho.......... 163

Payette River basin, Idaho, gagingstation records in..............159-177

Picabo, Idaho, Silver Creek near....... 114

Pine Creek near Cambridge, Idaho....... 184

Pocatello, Idaho, Portneuf River at.... 50

Portneuf River at Pocatello, Idaho..... 50

at Topaz, Idaho...................... 49

tributaries between, and Salmon Falls

Creek, discharge measurements of. 250 

Portneuf River basin, Idaho, gagingstation records in............... 49-52

Potlatch Creek .at Kendrick, Idaho...... 245

Powder River at Salisbury, Oreg........ 195
256 INDEX

Page 

Powder River near Haines, Oreg........ 196

near Robinette, Oreg................ 198

Powder River basin, Oreg., gagingstation records in.............195-198

Publications on streamflow by Geological Survey...................... 8-11

by State agencies................... 11

Raft River at Peterson Ranch,-near

Bridge, Idaho................... 54

Raft River basin, Idaho, gagingstation records in.............. 53-54

Reno, Idaho, Birch Creek near......... 85

Rexburg, Idaho, Henrys Fork near...... 43

Richfield, Idaho, Big Wood River near. Ill 

Little Wood River near.............. 115

Magic Reservoir near................ 110

Riggins, Idaho, Little Salmon River at 221 

Riley Creek below Lewis Spring near

Hagerman, Idaho................. 101

discharge measurement of............ 251

Riley Creek basin, Idaho, gagingstation records in..............99-101

Riley Creek Springs near Hagerman,

Idaho........................... 99

Riverside, Oreg., Malheur River near.. 153 

Robie Creek near Arrowrock, Idaho..... 145

Robinette, Oreg., Powder River near... 198 

Rock Creek near Rock Creek, Idaho..... 71

Rogerson, Idaho, Salmon River Canal

Co. canal near.................. 77

Salmon River Canal Co. reservoir

near............................ 76

Rome, Oreg., Crooked Creek near....... 130

Owyhee River near.. ................ 129

Rondowa, Oreg., Grande Ronde River at. 235 

Runoff in inches, definition of....... 2

St. Anthony, Idaho, Henrys Fork at.... 36

Teton River near.................... 41

Salisbury, Oreg., Powder River at..... 195

Salmon Falls Creek above upper Vineyard ditch, near Contact, Nev... 74 

near San Jacinto, Nev............... 75

tributaries and diversions between, 

and Malad River, discharge measurements of..................... 251

Salmon Palls Creek Basin, Idaho-Nev.,

gaging station records in....... 74-77

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

at Whitebird, Idaho................. 282

below Valley Creek, at Stanley,

Idaho........................... 205

below Yankee Fork, near Clayton,

Idaho........................... 206

Middle Fork, near Cape Horn, Idaho.. 213 

near Challis, Idaho.'................ 207

near French Creek, Idaho............ 219

near Obsidian, Idaho................ 202

near Shoup, Idaho................... 212

South Fork, near Knox, Idaho........ 216

Salmon River basin, Idaho, gagingstation records in.............202-222

Salmon River Canal Co. canal near

Rogerson,' Idaho................. 77

Salmon River Canal Co. reservoir near

Rogerson, Idaho................. 76

Salt River at Wyoming-Idaho State line 23 

near Smoot, Wyo..................... 20

Salt River basin, Wyo., gaging-station

records in....... .............. 20-23

San Jacinto, Nev., Salmon Falls Creek

near..................... ...... 75

Secesh River near Burgdorf, Idaho..... 218

Selway River near Lowell, Idaho....... 238

Sharp ditch near Mackay, Idaho........ 96

Shelley, Idaho, Snake River near...... 45

Shoshone, Idaho, Little Wood River at. 116 

Shoup, Idaho, Panther Creek near...... 211

Salmon River near................... 212

Silver Creek near Picabo, Idaho....... 114

Silver Lake Canal at Joseph, Oreg..... 231

Smoot, Wyo., Cottonwood Creek near.... 21

Salt River near.... ................ 20

Snake River at King Hill, Idaho. ...... 4,119

at Milner Idaho.................... 67

Page 

Snake River at Moran, Wyo.............. 14

at Neeley, Idaho..................... 52

at Oxbow, Oreg....................... 199

at Weiser, Idaho..................... 192

below Greys River, at Alpine, Idaho.. 19 

below Lower Salmon Falls, near Hagerman, Idaho....................... 102

diversions from.................26,46,62-66

near Blackfoot, Idaho................ 48

near Buhl, Idaho..................... 72

near Clarkston, Wash................. 4, 247

near Heise, Idaho.................... 25

near Irwin, Idaho.................... 24

near Kimberly, Idaho................. 69

near Minidoka, Idaho................. 58

near Murphy, Idaho................... 4, 124

near Shelley, Idaho.................. 45

tributaries of between Portneuf River 

and Salmon Falls Creek, Idaho, 

discharge measurements of........ 250

tributaries and diversions of between 

Salmon Falls Creek and Malad 

River, discharge measurements of. 251 

South Side Minidoka Canal near Minidoka, Idaho...................... 57

South Side Twin Falls Canal at Milner,

Idaho............................ 66

Spalding, Idaho, Clearwater River at... 246 

Spencer, Idaho, Beaver Creek at........ 81

Squirrel, Idaho, diversions from Fall

River above...................... 34

Fall River near...................... 34

Stage-discharge relation, definition of 2 

Stanley, Idaho, Salmon River at........ 205

Valley Creek at...................... 204

Sunnybrook Spring, Idaho, discharge

measurement of................... 250

Swift Creek near Afton, Wyo............ 22

Tamarack, Idaho, Lost Creek near....... 180

Lost Valley Reservoir near........... 179

Mud Creek near....................... 220

Weiser River at...................... 178

Terms, definition of................... 2-3

Terreton, Idaho, Mud Lake near......... 78

Teton Creek near Driggs, Idaho......... 38

Teton River, Idaho, discharge measurements of......................... 250

diversions from...................... 42

near St. Anthony, Idaho .............. 41

near Tetonia, Idaho.................. 40

near Victor, Idaho................... 37

Tetonia, Idaho, Teton River near....... 40

Thousand Springs, Idaho, discharge

measurement of................... 251

Topaz, Idaho, Portneuf River at........ 49

Trail Springs -(upper outlet) Idaho,

discharge measurement of......... 250

Trapper Creek near Oakley, Idaho....... 60

Troy, Oreg., Grande Ronde River at..... 236

Twin Falls, Idaho, Blue Lakes Spring

near. ............................ 70

Twin Springs, Idaho, Boise River near.. 134

Union, Oreg., Catherine Creek near..... 225 

Unity Reservoir near Unity, Oreg....... 193

Vale, Oreg., Bully Creek near... 

Valley Creek at Stanley, Idaho.. 

Victor, Idaho, Teton River near.

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

Wallowa Falls powerplant tailrace near 

Joseph Oreg........ ............

Wallowa Lake near Joseph, Oreg.........

Wallowa River at Joseph, Oreg..........

East Fork, near Joseph, Oreg.........

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

Warm Spring Creek, east channel of,

near Mackay, Idaho...............

west channel of, near Maokay, Idaho..

Warm Springs. Oreg., discharge measurements of................. ....

Warm Springs Creek at Guyer Hot Springs, 

near Ketchum, Idaho..............

157

204

37

234

227

228

229

226

30

93

94

104
INDEX 257

Page 

Warmsprings Creek, Oreg., discharge

measurements of... ............. 251

Warmsprings Reservoir, Oreg., contents

of.............. ............... 158

Weiser, Idaho, Crane Creek near....... 189

Mann Creek near..................... 191

Snake River at...................... 192

Weiser Irrigation District Canal near 190 

Weiser River near................... 186

Weiser Irrigation District Canal near

Weiser, Idaho................... 190

Weiser River above Crane Creek, near

Weiser, Idaho................... 186

at Tamarack, Idaho.................. 178

near Cambridge, Idaho............... 183

near Council, Idaho................. 181

Weiser River basin, Idaho, gagingstation records in..........:..178-191

Wendell, Idaho, Box Canyon Springs

near............................. 73

Whitebird, Idaho, Salmon River

at............................... 222

Wild Horse Reservoir near Gold Creek,

Nev.............................. 125

Willow Creek No. 3 Reservoir, Oreg.,

capacity of...................... 158

Winter Camp Ranch, Idaho, Bruneau River

near............................. 122

Wolf Creek near North Powder, Oreg..... 197

Work, division of...................... 2

scope of.............................. 1

Yellow Pine, Idaho, Johnson Creek at... 217

Zollinger ditch, Idaho, discharge measurements of...................... 250

 V. S. GOVERNMENT PRINTING OFFICE : 1954 O - ;