DEPARTMENT OF THE INTERIOR

ALBERT B. FALL, Secretary

UNITED STATES GEOLOGICAL SURVEY

GEORGE OTIS SMITH, Director

WATER-SUPPLY PAPER 483

SURFACE WATER SUPPLY OF THE 

UNITED STATES

1918 

PART XII. NOKTH PACIFIC DRAINAGE BASINS

B, SNAKE RIVER BASIN 

NATHAN C. GROVER, Chief Hydraulic Engineer

G. C. BALDWIN. O. L. PABKEB, A. B. PUBTON, and F. F. HENSHAW 

District Engineers

Prepared In cooperation with the States of 

OREGON, NEVADA, AND WASHINGTON

WASHINGTON

GOVERNMENT PRINTING OFFICE 

1922
DEPARTMENT OF THE INTERIOR

ALBERT B. FALL, Secretary

UNITED STATES GEOLOGICAL SURVEY

GEORGE OTIS SMITH, Director

Water-Supply Paper 483

SURFACE WATER SUPPLY OF THE 

UNITED STATES

1918

J'ART III. NORTH PACIFIC DRAINAGE BASINS

B, SNAKE RIVER BASIN

NATHAN C. GROVER, Chief Hydraulic Engineer

G. C. BALDWIN, G. L. PARKER, A. B. PURTON, and F. F. HENSHAW 

District Engineers

Prepared in cooperation with the States of 

OREGON, NEVADA, AND WASHINGTON

- City. /

WASHINGTON

GOVERNMENT PRINTING OFFICE 

1922
ADDITIONAL COPIES

OF THIS PUBLICATION MAY BE PROCURED FROM

THE SUPERINTENDENT OF DOCUMENTS

GOVERNMENT PRINTING OFFICE

WASHINGTON, D. C.

AT

15 CENTS PER COPY
CONTENTS.

Page.

Authorization and scope of work........................................... 1

Definition of terms......................................................... 2

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

Accuracy of field data and computed results............................... 4

Cooperation.............................................................. 5

Division of work.......................................................... 5

Gaging-station records...................................................... 6

Snake River.......................................................... 6

Snake River at south boundary of Yellowstone National Park........ 6

Jackson Lake at Moran, Wyo...................................... 8

Snake River near Moran, Wyo...................................... 9

Snake River at Alpine, Idaho...................................... 10

Snake River near Heise, Idaho.................................... 12

Snake River near Shelley, Idaho.................................. 13

Snake River at Porterville Bridge, near Blackfoot, Idaho............. 14

Snake River near Blackfoot, Idaho.............:................... 16

Snake River at Neeley, Idaho...................................... 18

Lake Walcott near Minidoka, Idaho................................ 19

Snake River near Minidoka, Idaho.................................. 20

Lake Milner at Milner, Idaho...................................... 22

Snake River at Milner, Idaho...................................... 23

Snake River at King Hill, Idaho................................... 24

Snake River near Murphy, Idaho................................. 26

Snake River at Weiser, Idaho................................... . 27

Snake River at Riparia, Wash...................................... 29

Tributary basins. ................ v ............*..................... 30

Pacific Creek near Moran, Wyo.................................... 30

Buffalo Fork near Moran, Wyo...................................... 32

Spread Creek near Elk, Wyo...................................... 33

Spring Creek near Teton, Wyo..................................... 34

Cottonwood Creek near Teton, Wyo................................ 35

Spring Creek near Zenith, Wyo.................................... 37

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

Gros Ventre River at Zenith, Wyo............r.;'.. Tl............... 39

Spring Creek at West Gros Ventre Butte, Wyo....................... ' 40

Spring Creek at Zenith, Wyo...................................... 41

Fish Creek near Wilson, Wyo....................................... 43

Mosquito Creek near Wilson, Wyo.................................. 44

Big Spring Creek near Cheney, Wyo................................ 45

Flat Creek near Cheney, Wyo..................................... 46

Horse Creek near Cheney, Wyo.................................... 47

Hoback River near Cheney, Wyo................................... 48

Fall Creek near Cheney, Wyo...................................... 50

Dog Creek near Cheney, Wyo....................................... 51

Cabin Creek near Cheney, Wyo..................................... 52

Bailey Creek near Alpine, Idaho.................................... 53

in
IV CONTENTS.

Gaging-station records Continued.

Tributary basins Continued. Page.

Wolf Creek near Alpine, Idaho .................................... 54

Greys River near Alpine, Idaho. .................................. 55

Salt River near Alpine, Idaho. . .................................... 56

McCoy Creek near Alpine, Idaho .................................. 57

Indian Creek near Blowout, Idaho ................................. 58

Big Elk Creek near Blowout, Idaho ................................ 60

Bear Creek near Irwin, Idaho. . .................................... 61

Palisade Creek near Irwin, Idaho. . ................................. 62

Fall Creek near Swan Valley, Idaho. . .............................. 63

Rainy Creek at Swan Valley, Idaho ................................ 64

Pine Creek near Swan Valley, Idaho ............................... 66

Henrys Fork at Warm River, Idaho. ................................ 67

Henrys Fork near Rexburg, Idaho. . ................................ 68

Warm River at Warm River, Idaho ................................ 69

Robinson Creek at Warm River, Idaho . ............................ 71

Fall River near Squirrel, Idaho. ................................... 72

Willow Creek near Ririe, Idaho .................................... 73

Willow Creek near lona, Idaho. . ................................... 75

Grays Lake outlet near Herman, Idaho. ............................ 76

Idaho (Government) canal near Shelley, Idaho. ..................... 78

JBlackfoot River above reservoir, near Henry, Idaho ................ 79

Blackfoot-Marsh reservoir near Henry, Idaho. . ...................... 81

Blackfoot River near Henry, Idaho ................................ 82

Blackfoot River near Shelley, Idaho ............................... 84

Black foot River near Blackfoot, Idaho. ............................. 85

Little Blackfoot River at Henry, Idaho ............................ 87

Meadow Creek near Henry, Idaho. ................................. 88

Idaho (Government) canal near Firth, Idaho. ...................... 90

Sand Creek near Firth, Idaho. . .................................... 92

Fort Hall upper canal near Blackfoot, Idaho ........................ 94

Fort Hall lower canal i^ar Blackfoot. Idaho ........................ 95

Portneuf River at Pocatello, Idaho ..!............................. 96

North Side Minidoka canal near Minidoka, Idaho. ................... 98

South Side Minidoka canal near Minidoka, Idaho .................... 99

North Side Twin Falls canal at Milner, Idaho ...................... 101

South Side Twin Falls canal at Milner, Idaho ...................... 103

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

Big Wood Riyer. near, Bellevue, Idaho ............................. 110

vep»bWdw Magic dam, near Richfield, Idaho. .......... 113

Big Wood, River ;below. North Gooding canal, near Shoshone, Idaho . 116

Big J/tfb'Qd RiVer hear Gooding, Idaho. . ............................. 119

Big Wood Slough at Hailey, Idaho. ............................... 120

Camas Creek near Blaine, Idaho. ................................. 124

Little Wood River near Richfield, Idaho .......................... 127

Bruneau River near Rowland, Nev. . ............................... 129

Owyhee River near Gold Creek, Nev .............................. 131

Owyhee River near Owyhee, Nev .................................. 123

Jack Creek near Tuscarora, Nev ................................... 135

Jordan Creek near Jordan Valley, Oreg . ............................ 136

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

.Arrowrock reservoir at Arrowrock, Idaho. . .......................... 140
CONTENTS. V

Gaging-station records Continued.

Tributary basins Continued. Pa8e -

Boise River at Bowling's ranch, near Arrowrock, Idaho.............. 141

Cottonwood Creek near Arrowrock, Idaho........................... 143

South Fork of Boise River near Lenox, Idaho. ...................... 145

Moore Creek near Arrowrock, Idaho................................. 147

Malheur River near Namorf, Oreg................................. 149

South Fork of Burnt River at Hard man ranch, near Unity, Oreg.... .. 150

Fleetwood ditch near Unity, Oreg................................. 152

Grande Ronde River at La Grande, Oreg. .......................... 153

Grande Ronde River at Elgin, Oreg................................ 155

Ladd Creek near Hot Lake, Oreg.................................. 156

Catherine Creek near Union, Oreg................................. 157

Little Creek near Union, Oreg...................................... 159

Mill Creek near Cove, Oreg......................................... 160

State ditch near Alicel, Oreg...................... ~................ 161

Palouse River near Potlatch, Idaho................................. 162

Miscellaneous measurements.............................................. 165

Index.................................................................... 169

ILLUSTRATIONS.

Page. 

PLATE I. A, Price current meters; B, Typical gaging station................ 2

IT. Water-stage recorders: A, Stevens continuous; B, Gurley printing;

C, Friez....................................................... 3
SURFACE WATER SUPPLY OF SNAKE RIVER BASIN,

1918.

AUTHORIZATION AND SCOPE OP WORK.

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

measurements of flow made on streams in the United States during 

the year ending September 30, 1918.

The data presented in these reports were collected by the United 

States Geological Survey under the following authority contained 

in the organic law (20 Stat. L., p. 394):

Provided, That this officer [the Directorj shall have the direction of the Geological 

Survey and the classification of public lands and examination of the geological structure, mineral resources, and products of the national domain.

The work was begun in 1888 in connection with special studies 

relating to irrigation in the arid west. Since the fiscal year ending 

June 30, 1895, successive sundry civil bills passed by Congress have 

carried the following item and appropriations:

For gaging the streams and determining the water supply of the T'nited States, 

and for the investigation of underground currents and artesian wells, and for the 

preparation of reports upon the best methods of utilizing the water resources.

Annual appropriations for the fiscal years ending June 30, 1895-1919.

1895...................................................... $12,500.00

1896...................................................... 20,000.00

1897 to 1900,inclusive.................................... 50,000. 00

1901 to 1902,inclusive.................................... 100,000. 00

1903 to 1906, inclusive.................................... 200,000. 00

1907...................................................... 150, 000. 00

1908 to 1910,inclusive.................................... 100,000. 00

1911 to 1917, inclusive.................................... 150,000. 00

1918...................................................... 175,000. 00

1919...................................................... 148,244.00

In the execution of the work many private and State organizations have cooperated, either by furnishing data or by assisting in 

collecting data. Acknowledgments for cooperation of the first kind 

are made in connection with the description of each station affected; 

cooperation of the second kind is acknowledged on page 5.

Measurements of stream flow have been made at about 4,510 

points in the United States and also at many points in Alaska and 

the Hawaiian Islands. In July, 1918, 1,180 gaging stations were

1
2 SURFACE WATER SUPPLY, 1918, PART XII B.

being maintained by the Survey and the cooperating organizations. 

Many miscellaneous discharge measurements are made at other 

points. In connection with this work data were also collected in 

regard to precipitation, evaporation, storage reservoirs, river profiles, and water power in many sections of the country and will be 

made available in the regular water-supply papers from tune to time.

DEFINITION OF TERMS.

The volume of water flowing in a stream the "run-off" or "discharge" is expressed in various terms, each of which has become 

associated with a certain class of work. These terms may be divided 

into two groups (1) those that represent a rate of flow, as secondfeet, gallons per minute, miners' inches, and discharge in second-feet 

per square mile, and (2) those that represent the actual quantity of 

water, as run-off in inches, acre-feet, and millions of cubic feet. 

The principal terms used in this series of reports are secondfeet, second-feet per square mile, run-off in inches, and acre-feet. 

They may be defined as follows:

"Second-feet" is an abbreviation for ''cubic feet per second." 

A second-foot is the rate of discharge of water flowing in a channel 

of rectangular cross section 1 foot wide and 1 foot deep at an average 

velocity of 1 foot per second. It is generally used as a fundamental 

unit from which others are computed.

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

of water flowing per second from each square mile of area drained, 

on the assumption that the run-off is distributed uniformly both as 

regards time and area.

"Run-off in inches" is the depth to which an area would be 

covered if all the water flowing from it in a given period were 

uniformly distributed on the surface. It is used for comparing 

run-off with rainfall, which is usually expressed in depth of inches.

An "acre-foot," equivalent to 43,560 cubic feet, is the quantity 

required to cover an acre to the depth of 1 foot. The term is commonly used in connection with storage for irrigation.

The following terms not in common use are here defined:

"Stage-discharge relation"; an abbreviation for the term "relation 

of gage height to discharge."

"Control"; a term used to designate the natural section or stretch 

of the channel or artificial structure below the gage which determines 

the stage-discharge relation at the gage. It should be noted that 

the control may not be the same section or sections at all stages.

The "point of zero flow" for a gaging station is that point on the 

gage the gage height to which the surface of the stream falls 

when the discharge is reduced to zero.
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 483 PI ATE I

A. PRICE CURRENT METERS.

B. TYPICAL GAGING STATION.
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 483 PLATE II

i

A. STEVENS CONTINUOUS. B. GURLEY PRINTING.

WATER-STAGE RECORDERS.

C. FRIEZ.
SURFACE WATER SUPPLY, 1918, PART XII B. 3 

EXPLANATION OF DATA.

The data presented in this report cover the year beginning October 

1, 1917, and ending September 30, 1918. At the beginning of January in most parts of the United States much of the precipitation in 

the preceding three months is stored as ground water, in the form of 

snow or ice, or in ponds, lakes, and swamps, and this stored water 

passes off in the streams during the spring break-up. At the end 

of September, on the other hand, the only stored water available 

for run-off is possibly a small quantity in the ground; therefore the 

run-off for the year beginning October 1 is practically all derived 

from precipitation within that year.

The base data collected at gaging stations consist of records of 

stage, measurements of discharge, and general information used to 

supplement the gage heights and discharge measurements in determining the daily flow. The records of stage are obtained either from 

direct readings on a staff or chain gage or from a water-stage recorder 

that gives a continuous record of the fluctuations. Measurements of 

discharge are made with a current meter. (See Pis. I, II.) The 

general methods are outlined in standard textbooks on the measurement of river discharge.

From the discharge measurements rating tables are prepared that 

give the discharge for any stage, and these rating tables, when applied 

to gage heights, give the daily discharge from which the monthly 

and yearly means of discharge are determined.

The data presented for each gaging station in the area covered by 

this report comprise a description of the station, a table giving 

results of discharge measurements, a table showing the daily discharge of the stream, and a table of monthly and yearly discharge 

and run-off.

If the base data are insufficient to determine the daily discharge, 

tables giving daily gage height and results of discharge measurements are published.

The description of the station gives, in addition to statements 

regarding location and equipment, information in regard to any conditions that may affect the permanence of the stage-discharge relation, 

covering such subjects as the occurrence of ice, the use of the stream 

for log driving, shifting of channel, and the cause and effect of backwater; it gives also information as to diversions that decrease the 

flow at the gage, artificial regulation, maximum and minimum recorded stages, and the accuracy of the records.

The table of daily discharge gives, in general, the discharge in 

second-feet corresponding to the mean of the gage heights read «ach 

day. At stations on streams subject to sudden or rapid diurnal 

fluctuation the discharge obtained from the rating table and the
4 SURFACE WATER SUPPLY, 1918, PART XTI B.

mean daily gage height may not be the true mean discharge for the 

day. If such stations are equipped with water-stage recorders the 

mean daily discharge may be obtained by averaging quantities of 

discharge for regular intervals during the day, or by means of a discharge integrator, an instrument operating on the principle of the 

planimeter and containing as an essential element the rating curve 

of the station.

In the table of monthly discharge the column headed "Maximum" 

gives the mean flow for the day when the mean gage height was 

highest. As the gage height is the mean for the day it does not 

indicate correctly the stage when the water surface was at crest 

height, and the corresponding discharge was consequently larger 

than given in the maximum column. Likewise, in the column 

headed "Minimum" the quantity given is the mean flow for the 

day when the mean gage height was lowest. The column headed 

"Mean" is the average flow in cubic feet per second during the 

month. On this average flow computations recorded in the remaining columns, which are defined on page 2 are based.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS.

The accuracy of stream-flow data depends primarily (1) on the 

permanence of the stage-discharge relation and (2) on the accuracy 

of observation of stage, measurement of flow, and interpretation of 

records.

A paragraph in the description of the station gives information 

regarding the (1) permanence of the stage-discharge relation', (2) precision with which the discharge rating curve is defined, (3) refinement 

of gage readings, (4) frequency of gage readings, and (5) methods 

of applying the daily gage height to the rating table to obtain the 

daily discharge. 1

For the rating tables "well defined" indicates, in general, that the 

rating is probably accurate within 5 per cent; "fairly well defined," 

within 10 per cent; "poorly defined," within 15 to 25 per cent. 

These notes are very general and are based on the plotting of the 

individual measurements with reference to the mean rating curve.

The monthly means for any station may represent with high accuracy the quantity of water flowing past the gage, but the figures 

showing discharge per square mile and run-off in inches may bo 

subject to gross errors caused by the inclusion of large noncontributing districts in the measured drainage area, by lack of information concerning water diverted for irrigation or other use, or by 

inability to interpret the effect of artificial regulation of the flow of

1 For a more detailed discussion of the accuracy of records see Grover, N. C., and Hoyt, J. C. Accuracy of stream-flow data: U. S. Geol. Survey Water-Supply Paper 400, pp. 53-59, 1916.
DIVISION OF WORK. 5

the river above the station. "Second-feet per square mile" and 

" run-off in inches" are therefore not computed if such errors appear probable. The computations are also omitted for stations on 

streams draining areas in which the annual rainfall is less than 20 

inches. All figures representing "second-feet per square mile" and 

"run-off in inches" previously published by the Survey should be 

used with caution because of possible inherent sources of error not 

known by the Survey.

The table of monthly discharge gives only a general idea of the 

flow at the station and should not be used for other than preliminary 

estimates; the tables of daily discharge allow more detailed studies 

of the variation in flow. It should be borne in mind, however, that 

the observations in each succeeding year may be expected to throw 

new light on data previously published.

COOPERATION.

During the year ending September 30, 1918, work in the Snake 

River basin was carried on in cooperation with the States of Oregon, 

Nevada, and Washington, effected under contracts made between 

the Director of the Federal Survey and the State engineers or other 

officials and authorized by legislative acts appropriating money.

Special acknowledgments are due to John H. Lewis, State 

engineer of Oregon; to Henry Landes, State geologist of Washington; 

and to J. G. Scrugham, State engineer of Nevada, for the efficient 

manner in which they represented their States in the investigations.

Acknowledgments are due also to the United States Reclamation 

Service and the United States Office of Indian Affairs, which permitted the freest use of data gathered exclusively for them and paid 

for by them. The United States Weather Bureau and the officials 

of Yellowstone National Park furnished hydrometric and climatic 

data.

The following cities, private companies, and individuals have aided 

in the collection of records by paying the expense of work or otherwise 

assisting: City of Pocatello, Twin Falls Canal Cov and Twin Falls 

North Side Land & Water Co.

DIVISION OF WORK.

The data for stations in Nevada were collected and prepared for 

publication under the direction of C. C. Jacob and A. B. Purton, 

district engineers, who were assisted by L. W. Jordan, W. E. Dickinson, J. W. Bones, and Miss Ruby Christensen.

For stations in Idaho (except in the Clearwater and upper Columbia 

basins), in Wyoming and in the Salmon Falls Creek basin in Nevada, 

the data were collected under the direction of G. C. Baldwin, district
6 SURFACE WATER SUPPLY, 1918, PART XII B.

engineer, and prepared for publication under the direction of G. C. 

Baldwin and C. G. Paulsen, district engineers, who were assisted 

by H. J. Dean, William Kessler, T. R. Newell, E. C. Howard, R. B. 

Kilgore, C. W. Kief, C. E. Tappan, C. F. Elford, A. G. Fiedler, B. A. 

Ho well, A. G. Hewel, Miss E. H. Haugse, Miss E. M. Klemm, and 

Mrs. F. G. Cure.

Data for stations in Oregon were collected and prepared for publication under the direction of F. F. Henshaw, district engineer, who 

was assisted by C. L. Batchelder and R. C. Briggs.

For stations in Washington and in the Palouse River basin in 

Idaho records were collected and prepared for publication by G. L. 

Parker, district engineer, assisted by Lasley Lee, W. E. Dickinson 

T. R. Newell, L. D. Carson, R. B. Kilgore, and E. C. Howard.

The manuscript was reviewed and assembled by Robert Follansbee 

and B. J. Peterson.

GAGING-STATION RECORDS.

SNAKE RIVER. 

SNAKE RIVER AT SOUTH BOUNDARY OF YELLOWSTONE NATIONAL PARK.

LOCATION. A quarter of a mile below junction of Lewis and Snake rivers, half a mile 

north of Snake River soldier station and south boundary of Yellowstone National 

Park, and 25 miles north of Moran, Wyo.

DRAINAGE AREA. 490 square miles (measured on topographic maps).

RECORDS AVAILABLE. June 19, 1913, to September 30, 1918.

GAGE. Overhanging chain gage on right bank; read by G. L. Van Norman and W. J. 

Burns. Auxiliary chain gage on bridge about 2^ miles downstream, used August 

4 to September 2 and September 4-14; read by Ed Sheffield.

DISCHARGE MEASUREMENTS. Made from cable about 225 feet below gage or by wading.

CHANNEL AND CONTROL. Bed composed of coarse gravel; clean except for occasional 

lodgment of drift. Control probably permanent at ordinary stages. One channel at gage but divided by an island into two channels at control.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 3.65 feet on May 

14 (discharge, 1,350 second-feet); minimum stage recorded, 1.9 feet November 

10-15 and 20-26 (discharge, 279 second-feet).

1913-1918: Maximum stage recorded, 6.3 feet June 2, 1914 (discharge, 5,690 

second-feet); minimum stage recorded, 1.4 feet October 26-31, 1915 (discharge, 

160 second-feet).

ICE. Stage-discharge relation not affected by ice, the formation of which is evidently 

prevented by hot springs above the gage.

DIVERSIONS. None above station.

REGULATION . None.

ACCURACY. Stage-discharge relation not permanent. Standard rating curve well 

denned between 250 and 5,000 second-feet by measurements in 1916 and 1917. 

Two parallel curves used. Rating curve for auxiliary gage record based on two 

measurements made in 1918. Gage read to half-tenths twice daily. Daily discharge ascertained^ by applying mean daily gage height to rating tables. Records 

fair.

COOPERATION. Gage-height record furnished by superintendent of Yellowstone 

National Park and by the United States Reclamation Service.
SNAKE RIVER BASIN.

Discharge measurements of Snake River at south boundary of Yellowstone National Park, 

during the year ending Sept. 30, 1918.

Date.

Oct. 3

July 21

Sept. 3

Made by 

T. R. Newell .............................................................

G. C. Baldwin ...........................................................

Gage 

height.

Feet. 

2.33

o3.28

62.34

Discharge.

Sec.-ft. 

414

896

385

a Sheffield gage at highway bridge read 3.67 feet. & Sheffield gage at highway bridge read 2.72 feet.

Daily discharge, in second-feet, of Snake River at south boundary of Yellowstone Natio-nal 

Park, for the year ending Sept. 30, J.918. 

Dav. Oct.

416

462

412

403

360

403

360

360

403

403

360

318

360

330

360

360

381

AfW

403

330

360

318

318

360

318

360

318

360

360

Nov.

360

360

360

360

360

360

318

318

298

279

279

279

279

279

279

310

318

9Q&

279

279

279

279

279

298

208

339

Dec.

448

360

360

360

360

368

360

381

360

318

360

381

403

403

381

403

403

381

AfW

403

381

403

426

448

448

448

448

4%

4%

520

545

Jan.

4%

4%

472

448

448

448

426

412

412

426

403

381

403

403

381

412

403

426

403

412

394

394

jno

412

403

412

403

426

403

403

Feb.

381

381

360

381

360

394

381

403

394

403

394

412

394

381

360

360

368

381

403

403

381

360

381

360

360

381

403

360

Mar.

381

360

360

360

360

381

381

360

360

360

360

381

360

381

381

403

403

381

360

381

360

360

360

360

403

394

381

360

Apr.

360

381

368

360

368

381

381

368

403

403

412

426

403

426

403

426

426

403

AfW

426

403

403

368

394

412

426

4AQ

520

598

652

May.

710

681

625

710

740

802

867

867

771

867

935

1,050

1.260

1,350

1,260

1,010

935

971

June. July.

880

915

1,230

949

771

915

885

854

824

794

Aug.

764

734

703

673

673

592

592

592

565

514

514

490

465

465

490

514

514

490

490

465

465

465

465

442

442

AAf)

419

419

419

419

415

Sept.

415

376

385

376

376

356

356

398

465

376

376

368

368

398

.......

NOTE. No record obtained May 19 to July 20 and Sept. 15-30. Record Aug. 4 to Sept. 2 and Sept. 4-14 

from auxiliary gage 2J miles downstream.

Monthly discharge of Snake River at south boundary of Yellowstone National Park, for 

the year ending Sept. 30, 1918.

Month.

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

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

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

May 1-18 ..............................................

July 21-31 .............................................

Discharge in second-feet.

Maximum.

462 

360 

545 

4% 

412 

403 

652 

1,350 

1,230 

764 

465

Minimum. Mean.

318 j 368 

279 i 307 

318 408 

381 419 

360 381 

360 ! 374 

360 417 

625 912 

771 ! 903 

415 i 520 

356 ! 385

Run-off in 

acre-feet.

22,600 

18,300 

25,100 

25,800 

21,200 

23,000 

24,800 

32,600 

19,700 

32,000 

10,700
8 SURFACE WATER SUPPLY, 1918, PART XII B. 

JACKSON LAKE AT MORAN, WYO.

LOCATION. In sec. 18, T. 45 N., R. 114 W., a short distance above gates at outlet of

lake at Moran, Lincoln County. 

RECORDS AVAILABLE. June 1, 1909, to September 30, 1918. Records for years 1909

and 1910 fragmentary. 

GAGE. Inclined staff on right shore just below engineers 1 cottage. Zero of gage,

6,700 feet above sea-level. 

COOPERATION. Gage-height record and table showing storage capacity of the lake

furnished by United States Reclamation Service.

Jackson Lake impounds water for the irrigation of lands in the Minidoka and Twin 

Falls tracts. It has a capacity of 847,000 acre-feet between the elevations 6,730 and 

6,7*69 feet sea-level datum.

Daily contents, in acre-feet, of Jackson Lake at Moran, Wyo., for the year ending Sept.

30, 1918.

Day.

1...

2...

3...

4...

5...

6...

7...

8...

9...

10...

11...

12...

13...

14...

15...

16... 

17...

18...

19... 

20...

21...

22...

23... 

24...

25...

26...

27...

28...

29...

30...

31...

Oct.

342,740

344.050

345, 350

346,220

347, 080

347. 950

348,820

349, 700

350, 570

351, 230

351, 890

352,550

353, 210

353, 860

354, 520

355,180 

355, 840

356,500

357, 150 

357, 810

358, 470

359, 130

359, 570 

360,000

360,440

360,880

361,320

361,980

362,850

363,730

364, 610

Nov.

365,490

366,360

367,240

368,120

369,000

369, 870

370, 530

371, 410

372, 300

372, 960

373,850

374, 520

375, 180

375,840

376, 510

377, 170 

377, 840

378,500

379, 170 

379, 830

380,500

381, 160

381, 820 

382,490

383,150

383,820

384,480

385,150

385, 810

386,480

Dec.

387, 140

388, 470

389,800

391, 130

392, 240

393,350

394,460

395, 580

396,700

398,040

399,380

400,280

401, 170

402, 510

403,860

404, 750 

405,640

406,990

408, 330 

409,670

411.' 010

412, 350

413,690 

415,040

418, 390

419,090

421,800

424,280

427,210

428,340

429,020

Jan.

429,700

430, 370

431, 050

432,630

433,980

434,660

435, 330

436, 010

436,910

438,040

438,950

439,860

440, 770

441,680

442,590

443, 730 

444,860

446,000

446,910 

447,360

448,280

449, 410

450,550 

451, 690

452, 820

453,960

454, 870

455,780

457,370

459, 190

460,100

Feb.

460,780

461,700

462,850

463,990

465, 140

466,280

467, 430

468,120

468,580

469, 260

469,950

470,640

471,550

472, 240

472,930

473, 620 

474,990

476,370

477, 510 

478,660

479,800

480,720

481, 410 

482, 550

483,700

485,080

486, 470

487, 620

Mar. .

488,090

488, 780

489, 470

490,160

490,860

491, 780

492, 700

493, 860

494,550

495, 240

496, 390

498,240

499,860

500,550

501, 470

502,160 

502,860

503, 550

504,240 

504,930

505,860

506,550

507,250 

507,940

508, 870

509,340

510,040

511.200

511,900

512,360

513,060

Apr.

514, 450

515,850

516,540

517, 010

517, 940

518,630

519, 330

519,800

520, 490

521, 420

522,820

523, 750

524,680

525, 840

527, 700

528,630 

529,790

530,960

531,430 

532,130

533,070

534,000

535,170 

536,340

537, 750

540, 320

541,720

543, 130

544,300

545,940

May.

547, 110

549,450

552,250

556,020

560,260

566,150

570,620

575, 340

582,680

586,480

588,850

592, 170

597, 150

602,140

609,070

614,080 

617, 190

625,080

628,200 

633,490

637,580

642,390

648,400 

655,910

664,140

672, 620

678,960

685,790

692, 370

698.230

708; 300

June.

718, 120

725,020

732, 440

743,560

756,240

765, 710

July.

796,260

796, 770

797, 280

796,260

796,240

796, 770

767,700j 796,260

770,940| 795,760

771, 180

774, 700

778,460

780, 210

782,720

786,230

788,740

790,240 

792,250

792,500

794,260 

796, 010

796,260

796, 770

796,260 

797, 530

795,010

795,760

795,760

795,260

795,260

797,530

797, 530

796,260

796,260

796, 770

796, 770

797,020

796, 010

794,260 

793,000

791,000

788,490 

785,980

784,480

779,460

774, 700 

769,690

764,010

754,750

736,640

717,630

700,200

681, 150

669,230

Aug.

657, 850

647,440

637,100

623,640

.606,680

587,900

568,500

550,850

532, 130

512, 360

492, 700

478,890

463,990

449,180

436,010

423,150 

409, 670

397,370

387,800 

379, 170

369,000

359,350

350,360 

342,310

334,500

326,910

318,110

312, 310

305,020

297,390

289,540

Sept.

281, 310

273,560

265,180

254,410

243,860

233,040

222,840

213, 390

205, 140

196, 190

186,880

178,820

171,220

165, 180

159,010

153,830 

154,210

154,600

155,560 

156,320

157,280

158,240

159,200 

160,160

161, 310

162,460

163, 620

164,790

165,960

1 7, 130
SNAKE RIVER BASIN.

SNAKE RIVER NEAR MORAN, WTO.

LOCATION. In sec. 17, T. 45 N., R. 114 W., H miles below Moran post office, Lincoln 

County, and United States Reclamation Service dam at outlet of Jackson Lake. 

No important tributaries between dam and station.

DRAINAGE AREA. 820 square miles.

RECORDS AVAILABLE. September 21, 1903, to September 30; 1918.

GAGE. Inclined staff on left bank. Datum lowered 1.0 foot July 26, 1915. Stevens 

8-day water-stage recorder installed June 14, 1917, on bank to rear of staff ga'ge. 

Gage read by employees of United States Reclamation Service.

DISCHARGE MEASUREMENTS. Made from cable about 100 feet below gage or by 

wading.

CHANNEL AND CONTROL. Bed composed of gravel and boulders. Control practically 

permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 10.41 feet at 8 p. m. 

June 12 (discharge, 15,100 second-feet); minimum stage recorded, 0.43 foot at 

1 a. m. September 26 (discharge, 22 second-feet).

3903-1938: Maximum stage recorded, 10.41 feet at 8 p. m. June 12, 1918 (discharge, 15,100 second-feet); practically no flow during a few days in 1907 and ]909 

as a result of closing of gates in Jackson Lake dam.

ICE. Stage-discharge relation affected by ice. Gates in dam at Jackson Lake are 

closed during winter. Flow past gage represents leakage through dam and inflow from springs.

DIVERSIONS. None between dam and station and practically none above Jackson 

Lake.

REGULATION. Flow controlled by operation of gates in Jackson Lake dam. Storage 

capacity of reservoir 847,000 acre-feet.

ACCURACY. Stage-discharge relation permanent. Rating curve well defined. Gage 

read to hundredths once daily October 16 to May 12. Operation of water-stage 

recorder satisfactory for rest of year. Daily discharge ascertained by applying 

daily gage height to rating table except for period June 1 to September 30, when 

discharge given is the mean of hourly discharges as determined from gage-height 

graph and rating table. Records fair for periods of ice effect; excellent for rest 

of year.

COOPERATION. Gage-height record furnished by United States Reclamation Service.

Discharge measurements of Snake River near Moran, Wyo., during the year ending Sept.

,30, 1918.

Date.

5

11

30

30

July 20

22

22

24

Made by 

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

T. R. Ne-well...........

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

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

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

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

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

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

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

Gage 

height.

Feet. 

0.71

.71

10.28

10.29

5.54

5.88

4.65

1.25

1.17

5.38

Discharge.

Sec.-ft.

42.2

14,700

4,270

4.780

2,950

168

141

4,080

Date.

Aug. 8

10

23

24

Sept. 2

11

23

24

Made by 

T. R. Newell...........

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

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

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

T. R. Newell...........

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

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

Gage 

height.

Feet.

0 AC

8.41

6.30

5.83

5.80

6.29

.48

.45

Discharge.

Sec.-ft. 

11.000

9.690

5,«20

4,800

4.780

5.510

24.1

22.9
10 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Snake River near Moran', Wyo.,for the year ending Sept.

30, 1918.

Day.

I..........'.

2...........

3...........

4...........

5..:........

6...........

7...........

9

10...........

11...........

12...........

13...........

14...........

15...........

16...........

17...........

18...........

19...........

20...........

21...........

22...........

23...........

24...........

25...........

26........... 97

28. ..........

29...........

30. ..........

01

Oct.

45

45

43

43

42

42

42

42

41

41

41

40

40

40

40

39

39

39

39

38

38

38

38

38

38

38

37

37

37

37

3ft

Nov.

36

36

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

Dec.

34 ' 34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

35

35

35

35

35

35

36

36

36

36

36

36

36

35

35

Jan.

35

34

34

33

33

Feb.

42

42

42

43

43

45

45

46

46

46

48

48

49

49

49

49

49

49

49

49

Mar.

49

49

19

49

49

49

49

49

49

49

49

49

49

49

49

49

49

50

50

52

52

53

53

42

42

42

42

42

42

42

42

Apr.

41

40

40

39

38

38

37

37

37

38

38

38

38

39

39

39

40

40

40

40

40

40

40

40

40

41

41

45

52

58

May.

65

72

78

87

70

70

61

65

65

65

65

69

55

56

58

60

61

60

52

49

49

50

50

50

50

50

61

72

78

69

72

June.

72

67

55

55

1,460

4,690

8,950

9,310

11,280

10,940

14,350

14,440

14,720

14,560

14,040

14,070

12,630

11,970

9,410

11,180

8,980

10,070

10,300

12,920

9,640

7,420

6,850

6.100

3,050

4,320

July.

4,620

3,680

4,330

4,090

2,710

4,120

3,640

2,440

2,610

3,300

2,170

2,160

2,050

2,970

2,920

3,000

3,000

3.000

2,990

2,940

2,740

3,500

4,480

3,920

4,520

8.230

10,990

11,200

11, 170

10,070

7,230

Aug.

7,190

7,090

7.520

9,270

10,520

11,500

11,290

11,120

10,890

10,190

9,840

9,350

8,460

8,310

8,180

8,060

7,750

6,940

5,540

5,680

5,760

5,700

5,350

4.740

4,690

4,600

4,580

4,490

4,440

4,540

4,910

Sept.

4,800

4,690

5,180

6,200

6,040

5,860

5,660

5,480

5,320

5,450

5,390

4,380

4,280

4,170

4,080

2,590

32

26

24

23

23

22

23

23

23

23

23

23

23

24

NOTE. Stage-discharge relation affected by ice Jan. 7 to Feb. 8. Gates in dam at Jackson Lake remained 

closed but the leakage through the gates increased, owing to increasing head on gates. Mean discharge estimated as follows: Jan. 7-31,36 second-feet; Feb. 1-8, 40 second-feet.

Monthly discharge of Snake River near Moran, Wyo.,for the year ending Sept. 30, 1918.

Month.

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

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

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

Discharge in second-feet.

Maximum.

45 

36 

36

53 

58 

87 

14, 720 

11,200 

11,500 

6,200

14,720

Minimum.

36

35 

34

42

37 

49 

55 

2,050 

4,440 

22

22

Mean .

39.8 

35.1 

34.7 

35.6 

44.6 

47.7 

40.4 

62.4 

8,600 

4,540 

7,370 

2,660

1,970

Run-oft' in 

acre-feet.

2,450 

2,090 

2,130 

2,190 

2,480 

2,930 

2,400 

3,840 

512,000 

279,000 

453,000 

158,000

1,420,000

SNAKE RIVER AT ALPINE, IDAHO.

LOCATION. In T. 3 S., R. 46 E., 300 yards below ranch house and 1 mile below highway bridge at Alpine, Bonneville County, and Idaho-Wyoming State line. Salt 

River enters just above station.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. June 20, 1916, to September 30, 1918.
SNAKE RIVER BASIN. 11

GAGE. Stevens 8-day water-stage recorder installed June 2, 1917, on right bank; also 

vertical staff in two sections at same site. Gage inspected by William Kizer and 

C. W. Kief.

DISCHARGE MEASUREMENTS. Made from cable 200 feet downstream from gage.

CHANNEL AND CONTROL. Bed composed of sand and gravel. One channel at all 

stages. Control shifting.

EXTREMES OP DISCHARGE. Maximum stage during year from water-stage recorder, 

12.67 feet at 10 p. m June 15 (discharge, 49,200 second-feet); minimum stage undoubtedly occurred during that portion of the year for which no records aVe 

available.

1916-1918: Maximum stage recorded, that of June 15, 1918; minimum stage, 

2.70 feet at 9 a. m. November 15 and 16,1916 (discharge, 2,130 second-feet).

ICE. Stage-discharge relation affected by ice; observations discontinued during 

winter.

DIVERSIONS. None above station.

REGULATION. Flow controlled by storage at Jackson Lake reservoir, which was completed during 1918 to a capacity of about 847,000 acre-feet.

ACCURACY. Stage-discharge relation not permanent. Standard rating curve fairly 

well denned between 4,000 and 33,000 second-feet. Several parallel curves used. 

Operation of water-stage recorder satisfactory except for one short period. Daily 

discharge ascertained by applying to rating table mean daily gage height obtained 

by inspecting recorder graph, or by shifting-control method. Records fair for 

June; good for rest of period.

Discharge Tneasurements of Snake River at Alpine, Idaho, during the year endim/ Sept.

30, 1918.

Date.

Oct. 3

June 5 

July 5

12

17

24

26

Aug. 2

9

12

Made by 

T.R. Newell. ..........

Baldwin and Howard. . 

C. W. Kief. ............

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

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

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

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

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

C. W. Kief.............

Gage 

height.

Feet. 

3.17

7.23 

6 99

6.28

6.30

6.00

6.07

7.21

7.01

Discharge.

Sec.-ft. 

3,740

17,300 

16,700

12.500

11,000

13,100

14.900

Date.

Aug. 17

24 

29

16

1ft

22

30

Made by 

C. W. Kief...... .......

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

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

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

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

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

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

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

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

Gage 

height.

Feet. 

6.55

5.45 

5.19

5.61

5.44

4.98

3.64

3.47

3.40

Discharge.

Sec.-ft. 

13,000

9,120 

8,300

9,700

9,230

7,770

3,750

3,400

3,140

Daily discharge, in second-feet, of Snake River at Alpine, Idaho, for the year ending Sept.

30, 1918.

Day.

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

2..............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

June.

17 200

21,900

27,000

27,600

33,600

36,600

40,800

45,100

46,300

48,100

48,700

July.

19,300

18,300

17,800

17,800

16,800

16,100

16,900

13,700

14,900

13,800

12,300

n orm

12,800

14,100

Aug.

12,600

12,600

12,600

14,900

16,400

16 400

16' 400

15^900

15,400

14,900

14,900

13,500

13,000

13,500

Sept.

8,530

8,360

8,360

9, 030

9,730

9,730

9,380

9,200

9,380

9,200

9.200

8,690

7,890

7,740

7,890

Day.

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

June.

48,100

July.

13,200

12,300

11,900

11,500

11,500

11,100

10,700

11,100

11,500

11,000

11,200

15,700

17,200

17,200

17,200

14,600

Aug.

13,000

13.000

11,700

10,900

10,100

10,100

10,100

9,730

9,380

8,860

8,690

8,530

8,360

8,200

8,200

8,360

Sept.

7,740

5,800

3,750

3,570

3,480

3,390

3,390

3,390

3,390

3,390

3.350

3,320

3,200

3,170

3,130

NOTE. No record obtained Oct. 1 to May 31. 

17-30,37,000 second-feet.

82374 22 WSP 483 2

Discharge estimated June 1-4, 13,000 second-feet: June
12

Monthly di

SURFACE WATER SUPPLY. 1918, PART XII B.

of Snake River at Alpine, Idaho, for the year ending Sept. 30, 1918.

Month.

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

August. ......... .'. ..............................

Discharge in second-feet.

Maximum.

48, 700

19,300 

16,400 

9,730

Minimum.

10,700 

8,200 

3,130

Mean.

33, 700 

14,200 

12,100 

6,330

Run-oil in 

acre-feet.

2,010,000 

873,000 

744,000 

377,000

4,000,000

SNAKE RIVER NEAR HEISE, IDAHO.

LOCATION. In sec. 5, T. 3 N., R. 41 E., 600 feet above Anderson dam, in Bonneville 

County, 3 miles above Heise, and 25 miles below site of station formerly maintained near Lyon. Several small creeks enter between old site and station.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. September 25, 1910, to September 30, 1918.

GAGE. Friez water-stage recorder on left bank; installed July 8, 1913, and referred 

to vertical staff gage. Gage inspected by J. T. Morgan, W. J. Kremer, and E. C. 

Howard.

DISCHARGE MEASUREMENTS. Made from cable about 100 feet below gage.

CHANNEL AND CONTROL. Bed composed of coarse gravel and cobblestones. One 

channel at all stages. Control formed by crest of Anderson dam. Part of this 

dam washed out during high water June 13-24, following which the control 

shifted at frequent intervals.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 11.10 feet at 9 

a. m. June 13. Maximum discharge, about 52,000 second-feet June 16; minimum 

stage recorded, 0.34 foot September 29 (discharge, 3,880 second-feet). Actual 

minimum probably occurred during period of no record.

1910-1918: Maximum discharge, about 52,000 second-feet June 16, 1918; minimum discharge, 2,180 second-feet at 10 a. m. March 10, 1915.

ICE. Stage-discharge relation seriously affected by ice. Observations discontinued 

during winter.

DIVERSIONS. No large diversions above station. A small ditch of about 20 secondfeet capacity takes out just above this station.

REGULATION. Flow controlled to a large extent by storage in Jackson Lake reservoir.

ACCURACY. Stage-discharge relation changed during high water in June by washing 

out of Anderson dam. Standard rating curve used before the change well denned 

between 4,000 and 20,000 second-feet. Several parallel rating curves used after 

the change. Operation of water-stage recorder satisfactory except April 9-20 

and June 11 to July 1. Daily discharge ascertained by applying mean daily gage 

height to rating table except June 1-10 and July 1 to September 30, when the 

mean of hourly discharge was used. Records good.

Discharge measurements of Snake River near Heise, Idaho, during the year ending Sept.

30, 1918.

Date. Made by- ^

Apr.' 9 

10 

11 

May 21 

June 9 

29 

July 12 

15 

16 

19 

Aug. 1 

2

Feet. 

C. F. Elford........... 1.80

.....do................. 2.10

.....do................. 2.40 

G.C. Baldwin......... 4.04

Baldwin and Howard . . 9. 04 

E.C.Howard.......... 5.60

G.C.Baldwin.........! 3.32

E.C.Howard........ 3.66

.....do.. .............. J 3.12

.....do.................; 3.26

Discharge.

Sec.-ft. 

4,310 

4,990 

5,730 

11,300 

40, 100 

25,500 

13,200 

14,400 

13, 500 

12,300 

13,200 

13,300

Date.

Aug. 3 

5 

13 

15 

17 

27 

28 

31 

Sept. 13 

14 

17 

23

Made by 

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

Baldwin and Howard. .

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

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

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

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

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

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

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

G.C. Baldwin.........

Gage i Disheight. charge.

Feet. 

3.23 

3.73 

3.48 

3.52 

3.42 

2.26 

2.22 

2.11 

2.06 

2.02 

1.92 

.46

Sec.-ft. 

13,500 

15,100 

13,700 

13,600 

12,900 

8,860 

8,680 

8,190 

8,250 

7,950 

8,270 

4.010
SNAKE BIVER BASIN. 13

Daily discharge, in second-feet, of Snake River near Heise, Idaho, for the year ending

Sept. 30, 1918.

Day.

1.....

2.....

3.....

4.....

5.....

6.....

7.....

8.....

9.....

10.....

11..... 

12..... 

13..... 

14..... 

15.....

Apr.

4, 320 

4i 980

5,730 

6,570 

7,500 

7,820 

7,180

May.

8,840 

9,570 

11,600 

13, £00 

15,700

15, 700 

15,200 

15,200 

15,700 

14,300

12,000

June.

15, 430 

14,680 

14,8180 

16, 970 

19,670

24, 010 

29,250 

35, 610 

38,130 

41, 670

43,800 

49,200 

49,800 

50,400 

51,600

July.

20,320 

20, 030 

19, 020 

19,310 

18,060

16,540 

18, 100 

16, 680 

14, 870 

14, 820

15, 120 

13,490 

12,680 

13, 190 

14,650

Aug.

13,350 

13, 150 

13,050 

13,450 

15,020

15,930 

16, 640 

16,460 

16,210 

15,900

15, 410 

14, 890 

14, 380 

13,390 

13,750

Sept.

8,780 

8,730 

3,670 

8,820 

10,060

9,940 

9,720 

9,450 

9,500 

9,340

9,320 

9,160 

8,190 

8,050 

8,040

Day.

16.....

17.....

18..... 

19..... 

20.....

21. ... 

22. ... 

23. ... 

24. ... 

25. ...

26. ... 

27. ... 

28. ... 

29. ... 

30. ... 

31.....

Apr.

6,280

6,000 

5,470 

5,220 

4,980

4,980 

5,340 

6,280 

6,570 

7,020

7,820 

7,500 

6,870 

6,870 

7,660

May.

12,400 

12,000 

11,200

11,200 

12,100 

12,900 

13,800 

14,800

14,800 

14,300 

13,400 

12,900 

12,900 

14,800

June.

51,600 

50,400 

48,000 

46,200 

43,200

43,200 

42,000 

41,400 

41,400 

42,000

37,300 

33,200 

30,900 

26,300 

23,300

July.

14,070 

13,360 

12,720 

12,270 

12,000

11,800 

11,060 

11,550 

11,950 

11,250

11,640 

14,500 

17,590 

17,550 

17,340 

16,360

Aug.

13,360 

13,330 

12, 810 

11, 870 

10,520

10,340 

10,380 

10,24ff 

9,950 

9,260

9,080 

8,970 

8,770 

8,590 

8,480 

8,460

Sept.

7,950 

7,460 

4,890 

4,340 

4,220

4,160 

4,090 

4,060 

4,100 

4,040

4,000 

3,960 

3,920 

3,880 

3,880

NOTE. No record obtained Oct. 1 to Apr. 8. Discharge estimated 12,000 second-feet, May 12-17. 

Monthly discharge of Snake River near Heise, Idaho, for the year ending Sept. 30, 1918.

Month.

Ajpril9-30.. ............................. ....... ......

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

September, ............................................

Discharge in second-feet.

Maximum.

7,820 

15, 700 

51,600 

20,320 

16,640 

10, 060 '

Minimum.

4,320 

8,840 

14,680 

11,060 

8,460 

3,880

Mean.

6,320 

13,000 

36,500 

15,000 

12,400 

6,820

Run-off in

acre-feet.

276,000 

799,000 

2,170,000 

922,000 

762,000 

406/000

5,340,000

SNAKE RIVER NEAR SHELLEY, IDAHO.

LOCATION. In sec. 17, T. 1 N., R. 37 E., a quarter of a mile upstream from Woodville 

highway bridge and 3 miles north of Shelley, Bingham County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. March 18, 1915, to September 30, 1918.

GAGE. Friez water-stage recorder on right bank, standard hook gage in float well, and 

. combination vertical and inclined staff gage outside. Observer, James Thorne.

DISCHARGE MEASUREMENTS. Made from cable 600 feet upstream from gage.

CHANNEL AND CONTROL. Control is a lava-rock reef extending across the channel 

about 500 feet below gage. Banks high and clean at gage and control.

EXTREMES or DISCHARGE. Maximum stage during year from water-stage recorder, 

' 16.97 feet at 1.30 p. m. June 17 (discharge, 47,200 second-feet); minimum stage, 

6.20 feet at 12 p. m. September 30 (discharge, 3,810 second-feet); absolute minimum stage probably occurred during period of no record.

1915-1918: Maximum stage from water-stage recorder, that of June 17, 1918; 

minimum stage, 4.88 feet at 6 p. m. September 2, 1915 (discharge, 1,800 secondfeet).

ICE! Stage-discharge relation probably seriously affected by ice; observations discontinued during winter.

DIVERSIONS. Practically the entire natural summer flow of the river above the station is appropriated by numerous diversions in the Idaho Falls district.
14 SURFACE WATER SUPPLY, 15)18, PART XII B.

REGULATION. Natural flow during the irrigation season is augmented by the release 

of stored flood waters in Jackson Lake for use on the Minidoka project and Twin 

Falls tracts.

ACCURACY. Stage-discharge relation practically permanent. Rating curve well 

denned. Operation of water-stage recorder satisfactory. Daily discharge ascertained by applying to rating table mean daily gage height obtained by inspecting 

recorder graph. Records good.

Discharge measurements of Snake River near Shelley, Idaho, during the year ending

Sept. 30, 1918.

Date.

Oct. 7

Apr. 12

May 19

Made by 

T.R. Newell...........

C. F. Elford............

Newell and Baldwin. . .

Gage 

height.

Feet.

8.52

Discharge.

Sec.-ft.

11,500

Date.

July 11

Sept. 21

Made by -

G. C. Baldwin.........

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

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

Gage 

height.

Feet. 

14. 55

8.64

6.52

Discharge.

Sec.-ft. 

37,300

11,600

4,690

Daily discharge, in second-feet, of Snake River near Shelley, Idaho, for the year ending

Sept. 30, 1918.

Day.

1.....

2.....

3.....

4... ..

5.....

6.....

7.-...

8.

9.....

10.....

11 ..... 

12.....

13.....

14.....

15.....

Apr.

5,430

5,580

5,580

5,280

4,850

4,710

4,440

4,310

4,180

4,580

5,430 

6,190

6,980

7,800

8,480

May.

9,000

10, 100

11,200

13,000

15,000

17,000

17,000

17,000

17,800

17, 800

16,200 

14,200

12,300

11,500

12,300

June.

14,200

15,000

14,600

14,600

16,200

18,600

22,700

26,100

29,900

31,600

33,800 

36,000

38,700

41,900

44, 600

July.

19,000

17,000

15,400

14,600

14, 600

13,400

12,300

13,000

12,300

11,200

11,500 

11,900

11,200

11, 200

12, 300

Aug.

9,000

7,640

7,470

7,470

8,310

9,350

10.400

11 200

11^200

10,800

10,800 

10, 100

10, 100

9,350

9,700

Sept.

6,500

6,660

6,660

6,660

6,820

7,300

7,300

7,300

7,470

7,640

7,970 

8,140

7,970

7,640

7,640

Day.

16.....

17.....

18.....

19.....

20.....

21 .....

22.....

no

24.....

25.....

26..... 

27.....

28.....

29.....

30.....

O1

Apr.

8,310

7,800

6,820

5 880

5,580

5,430

5,880

6

rnn

, OvU

7,300

7,800

8,660 

9,350

9,350

8,480

8,310

May.

13,000

13,000

12,300

11,200

10,400

9,350

8,830

0 RRC\

o. DDU

8,830

9,700

10,800 

11,500

12,300

12,300

11,900

12,300

June.

46,000

46,900

46,900

45, 100

42,800

41,000

39,600

Oft fif\ft O*/. DUU

39,200

39,200

39, 600 

39,600

32,100

27,300

23,600

July.

13,800

13,400

12,300

11,200

10,400

9,700

8,480

7,470

7,300

7,140

6,660 

6,190

8,660

10.100

10,400

10,400

Aug.

10,100

10,400

10,800

10,400

9,350

8,480

8.310

8,310

8,140

7,800

7,470 

7,140

6,980

6,820

6,660

6,500

Sept.

7,800

7,800

7,140

5 580

4,850

4,710

4,710

4,710

4,440

4,440

4,440 

4,440

4,180

3,930

3,810

NOTE. Nore3ord obtained Oct. 1 to Mar. 31. 

Monthly discharge of Snake River near Shelley, Idaho, for the year ending Sept. 30, 1918.

Month.

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

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

Discharge in second-feet.

Maximum.

9,350 

17,800 

46,900 

19,000 

11,200 

8,140

Minimum.

4,180 

8,660 

14,200 

6,190 

6,500 

3,810

Mean.

6,510 

12,500 

32,800 

11,400 

8,920 

6,220

Run-oft' in 

acre-feet.

387,000 

769,000 

1,950,000 

701,000 

548,000 

370,000

4,720,000

SNAKE RIVER AT PORTERVILLE BRIDGE, NEAR BLACKFOOT, IDAHO.

LOCATION. In sec. 26, T. 2 S., R. 35 E., 3i miles north of Blackfoot, Bingham County, 

one-fourth mile below Porterville Bridge, and immediately below heading of 

Danskin canal. Station was formerly maintained at Porterville Bridge, above 

heading of Danskin canal.

DRAINAGE AREA. Not measured.
SNAKE RIVER BASIN. 15

RECORDS AVAILABLE. May 13 to September 30, 1918, at present site: June 12 to September 30, 1916, at site at Porterville highway bridge.

GAGE. Inclined staff gage on left bank opposite tenant house of Mrs. Anenine Hanson; read by Henry Ronfeld. Gage used prior to September 30, 1916, vertical 

staff on right abutment of Porterville Bridge.

DISCHARGE MEASUREMENTS. Made from cables over two channels about a quarter of 

a mile below gage. Cables washed out by high water in June, 1918, but were 

replaced July 18.

CHANNEL AND CONTROL. Bed composed of cobble in gravel drift; clean except for 

occasional lodgment of drift. Control shifts at high stages. One channel at 

gage but divided by an island into two channels at control, except at extreme 

low stages.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 13.5 feet at 7 p. m. 

June 17 and 6 a. m. June 18 (discharge, 46,900 second-feet); minimum stage, 5.5 

feet at 6 a. m. and 7 p. m. September 30 (discharge, 2,800 second-feet).

ICE. Stage-discharge relation seriously affected by ice; observations discontinued 

during winter.

DIVERSIONS. Practically the entire natural summer flow of the river is diverted 

above the station.

REGULATION. Natural flow during the irrigation season is augmented by the release 

of stored flood waters in Jackson Lake for use on the Minidoka and Twin Falls 

tracts.

ACCURACY. Stage-discharge relation not permanent. Two parallel rating curves 

used, fairly well defined between 4,000 and 10,000 second-feet; one applicable 

May 13-30, the other June 13 to September 30. Gage read to half-tenths twice 

daily. Daily discharge ascertained by applying mean daily gage height to rating 

table. Records fair.

Discharge measurements of Snake River at Porterville Bridge, near Blackfoot, Tdaho, 

during the year ending Sept. -30, 1918.

Date.

May 30

July 19

Made *>y- \$&.

i

Feet.

R. B. Kilgore.......... ( 7.45

I

Discharge.

Sec.-ft. 

10,400

9,180

Date.

Aug. 3

Made by 

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

Gage 

height.

Feet. 

6.21

6.01

Discharge.

Sec.-ft. 4Qflft

4,260

Doily discharge, in second-feet, of Snake River at Porterville Bridge, near Blackfoot, Idaho, 

for the year ending Sept. 30, 1918.

Day.

i. .......

3........

4........

5........

6. .......

7........

8. .......

9. .......

10........

11........

12........

13........

14. .......

15........

May.

11.100

9,500

9,700

June.

38.800

42,500

July.

16,800

H cUlft

13,600

13,300

12,400

11,300

10,500

10,300

9,110

9,110

9,700

9

onn

9,300

Aug.

6,880

4,870

5,030

6,700

8,920

8,920

8,720

8,720

.8,340

7,780

7,240

Sept.

4,560

4,560

4,560

4,560

5,190

5,360

5,520

5,520

5,850

6,190

6,190

6,530

6,190

6,190

Day.

16........

17........

18........

19. .......

20. .......

21........

22........

23........

24. .......

25........

26........

27........

28........

29........

30. .......

31........

May.

10,700

11 300

9 700

9,' 600

9

Kt\n

8,160

7,060

7,420

7,780

8,160

8,920

9,510

10,700

11,000

June.

44,000

46,200

46,200

44,000

41 srift

39,500

38,100

38,100

37,400

38,100

35,900

30,900

25,400

21,500

July.

11,600

11 300 lo'soo

9,300

8

O4A

7,420

6,530

5,520

4,870

4,560

4,100

3,800

5,030

7,240

7,600

7,600

Aug.

8,340

8,720

9,110

9,110

8,160

7,240

6,700

6,530

6,360

6,190

5,680

5,190

5.190

5,030

4,870

4,720

Sept.

6

lQn

4,250

3,500

3,220

3.080

3,080

3,080

3,080

3,080

3,080

2,940

2,940

2,800

NOTE. No record Oct. 1 to May 12. Discharge June 1-12, estimated 20,000 second-feet.
16 SURFACE WATER SUPPLY, 1918, PART XII B,

Monthly discharge of Snake River at Porterville Bridge, near Blackfoot, Idaho, for the

year ending Sept. 30, 1918.

Month.

May 13-31. .............................................

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

Discharge in second-feet.

Maximum.

11,300 

46.200

16,800 

9,110 

6,530

Minimum.

7; 060

3,800 

4,720 

2,800

Mean.

9,480 

30,700 

9,280 

6,950 

4,610

Run-off in 

acre-feet.

357.000 

1,830,000 

571,000 

427,000 

274,000

3,460,000

SNAKE RIVER NEAR BLACKFOOT, IDAHO.

LOCATION. In sec. 31, T. 3 S., R. 34 E., a quarter of a mile below mouth of Black - 

foot River and 14 miles southwest of Blackfoot, Bingham County. Blackfoot 

River is only large tributary between station and mouth of Henrys Fork, about 

60 miles above. Portneuf and Bannock rivers and 2,500 second-feet of spring 

water enter between this station and station at Neeley.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. June 6, 1910, to September 30, 1918.

GAGE. Friez water-stage recorder on right bank: installed July 6, 1913, at same site

and datum as staff gage installed October 1, 1912. Original gage, used June 6,

- 1910, to September 30,1912, was 50 feet above present site. Datum of gage raised

0.06 foot June 25, 1911, and 0.03 foot October ], 1912, when new staff gage was

installed. Observer, J. A. Clough.

DISCHARGE MEASUREMENTS. Made by wading or from a cable about 50 feel above 

the gage.

CHANNEL AND CONTROL. Bed composed of very coarse gravel. Two channels at 

low and medium stages. Control shifts slightly during high water.

EXTREMES OF DISCHARGE. Maximum stage during year from water-stage recorder, 

14.80 feet (approximately), at 5 p. m. June 18 (discharge, about 46,200 secondfeet); exact discharge uncertain because of probable shift in stage-discharge 

relation at about this period. Minimum stage, 3.45 feet at, 3.40 p. m. February 3 

" (discharge, 1,790 second-feet).

1910-1918: Maximum stage recorded as stated above; minimum stage, 1;89 

feet August 11 and 15. 1910 (discharge, 238 second-feet ">.

JCE . Floating ice sometimes present for short periods; stage-discharge relation apparently not affected.

DIVERSIONS. Practically all the natural summer flow of the river is diverted above 

station.

REGULATION. Flow regulated by storage in Jackson Lake reservoir and also by 

storage in Blackfoot-Marsh reservoir on Blackfoot River. Practically all the 

summer flow is water released from these reservoirs.

ACCURACY. Stage-discharge relation not permanent. Two rating curves used; well 

denned for low and medium stages; one, with several parallel curves, applicable 

October I to June 26, the other July 7 to September 30. Operation of water-stage 

recorder satisfactory except for periods October 16-31 and February 1-3 when 

staff gage readings were made. Daily discharge ascertained by applying to rating 

table mean daily gage height obtained by inspecting recorder graph. Shiftingcontrol method used June 27 to July 6. Records good.
SNAKE RIVER BASIX. 17

Discharge measurements of Snake River near Blackfoot, Idaho, during the year ending

Sept. 30, 1918.

Date. Made byMar. 2 C. F. Elford............

11 ;.....do. ................

July 10 ! G.C. Baldwin.........

18 '.....do.................

Gage 

height.

Feet. 

4.20

4.77

7.42

7.87

Discharge.

Sec.-ft. 

2,990

3,780

9,240

11,100

Date.

4

16

Sept. 20

Made by 

G.C.Baldwin.........

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

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

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

Gage 

height.

Feet. 

6.32

5.61

7.00

5.10

Discharge.

Sec.-ft. 

6,730

4.860

8^290

s;soo

Daily discharge, in second-feet, of Snake River near Blackfoot, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2. ..........

3...........

4...........

6...........

8...........

9...........

10...........

11...........

12...........

13........... 

14...........

15...........

16...........

17...........

18...........

19...........

20...........

21...........

22...........

23........... 

24...........

25........... 

26...........

27...........

28. .......... 

29........... 

30........... 

31...........

Oct.

4,610

4,610

4,510

4,510

4,400

4,400

4,400

4,300

4,300

4,300

4,100

4,000

3,900 

3,840

3,780

3,720

3,900

4,060

4,120

4,160

4,280

4,320

4,340 

4,300

4,300

4,400

4,510 

4,550 

4,510 

4,530

Nov.

4,510

4,510

4,510

4,510

4,510

4,510

4,510

4,510

4,510

4,400

4 400

4,400

4,400

4,300

4,400

4,200

4,200 

4,200

4,300 

4,200

4 300

4,300 

4,200 

4,200

Dec.

4,200

4,400

4,510

4,300

4,100

3,900

4,100

3,810

3,720

4,300

3,530

3 OCA

4,510 

4,610

4,610

4,300

4,100

4,200

4,200

4,200

4,200 

4,100

4,200

4

0Afl

4,200 

4,400 

4,610 

4,830

Jan.

4,830

4,610

4,400

4,300

4,200

4,200

4,200

4,000

3,270

2,770

2,250 

2,390

2,770

3,010

3,270

3,530

3,620

3,530

3,440

3,360 

3,440

3,810 

3,720

3,530

3,620 

3,270 

3,010 

2,620

Feb.

2,180

2,160

1,790

1,980

2,770

3,180

3,270

3,180

3,100

3 inn

3,100

3,100

3,010

3,010

3,100

2,770

3,100

2,850

3,180 

3,440

3,530 

3,360

3 440

3,100

Mar.

3,100

3,010

3,010

3,360

3,270

3,360

3,440

3,440

3,270

3,530

3,900

4,100

4,300 

4,200

4,000

3,620

3,620

3,720

3,810

3,900

3,900

3,810 

3,900

3,900 

4,000

4.300

4,400 

4,400 

4,510 

4,610

Apr.

4,940

5,390

5,510

5,390

4,940

4,610

4,510

4,200

4,100

4,300

4,940

5,750

6,390 

7,210

8,090

8,400

8,090

7,350

6,260

5,510

5,160

5,390

5,880 

6,650

7,350 

7 940

8,720

9,050 

8,720 

8,090

May.

8,090

9,050

10,100

11,200

13,200

15,800

16,300

16,300

16,700

15,800

11,600 

10,100

10, 100

10,800

11,200

10,800

10,100

9,390

8,090

7,210

6,790 

6,920

7,350

9,740

10,800 

11,200 

10,800 

10,800

June.

12,000

13,600

13,600

13,200

13,600

15,400

22 400

26^300

28,800

30,300

QO QAfl

34,900

41,000

43 600

45,' 700

46,200

45,200

42,600

40,500

39,000

39,000 

38,400

37, 900 

38,400

37,500

32,200 

27,000 

22,900

July.

18,500

15,600

14,200

13,600

13,500

12,500

11,200

11,200

10,300

9,440

9,150

9

7Q«

9,440

9 AAf\

10,000

11,200

11 200

9,730

8,590

7,780

7,000

5,660 

5,080

4,640 

4,320

4.220 

6,750 

7,260 

7,260

Aug.

6,880

5,080

4,860

4,970

5,310

6,620

7,520

8,320

8,590

8,590

8,590

8,320

7,780 

7,780

7,780

8,870

9,150

8,590 '^

7,520

7.000

6,880 

6,750

6,500 

6,130

5,540

5,200 

4,970 

4.860 

4,750

Sept.

4,430

4,540

4,540

4 640

5,200

5,420

5,770

6,010

6,250

6,750

6,500

6,620

6,620

6,380

4,860

3,910

3,320

2,960

2,960 

2,870

2,960 

3,050

2,960 

2,870 

2,700

Monthly discharge of Snake River near Blackfoot, Idaho, for the year ending Sept. 30,

1918.

Month.

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

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

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

Discharge in second-feet.

Maximum.

4,610 

4,510 

4,830 

4,830 

3,530 

4,610 

9,050 

16,700 

46,200 

18,500 

9,150 

6,750

46,200

Minimum.

3,720 

4,100 

3,360 

2,250 

1,790 

3,010 

4,100 

6,790 

12,000 

3,710 

4,750 

2,700

1,790

Mean.

4,270 

4.360 

4,210 

3,520 

2,990 

3,790 

6,290 

11,100 

31,000 

9,450 

7,010 

4,710

Run-off in 

acre-feet.

263,000 

259,000 

259,000 

216,000 

166,000 

233,000 

374,000 

682,000 

1,840,000 

581,000 

431,000 

280,000

7,720 i 5,580,000
18 SURFACE WATER SUPPLY, 1918, PART XII B.

SNAKE RIVER AT NEELEY, IDAHO.

LOCATION. In sec. 11, T. 8 S., R. 30 E., half amile north of Neeley post office, Power 

County, 4 miles southwest of American Falls, and 32 miles above the Minidoka 

dam. Portneuf and Bannock rivers and 2,500 second-feet of spring water enter 

Snake River between station near Blackfoot and that at Neeley. Raft River 

enters about 38 miles below Neeley.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. March 17, 1906, to September 30, 1918.

GAGE. Friez water-stage recorder installed August 8, 1910, on left bank at site of 

staff gage originally used. Observers, Morgan and Wallis.

DISCHARGE MEASUREMENTS. Made from cable at gage.

CHANNEL AND CONTROL. Bed of river at measuring section rough, especially near 

right bank. Banks high and clean. One channel at all stages. Control is of 

lava rock, probably partly overlain with coarse gravel; shifts slightly.

EXTREMES OF DISCHARGE. Maximum stage during year from water-stage recorder, 

somewhat doubtful. Maximum mean for day, 13.5 feet June 20 (discharge, 

48,400 second-feet); minimum stage, 4.67 feet at 8 a. m. February 5 (discharge, 

4,280 second-feet).

1906-1918: Maximum stage doubtful; maximum daily mean, 13.5 feet June 

20, 1918 (discharge, 48,400 second-feet); minimum stage, 3.65 feet August 20-22 

1906 (discharge, 2,220 second-feet).

ICE. Stage-discharge relation seriously affected by ice at times.

DIVERSIONS. Numerous canals near Blackfoot and Idaho Falls divert practically the 

entire natural summer flow of Snake River.

REGULATION. Summer flow augmented by stored water from Jackson Lake for use 

on the Minidoka project and Twin Falls tracts. Diurnal fluctuations sometimes 

result from operation of power plant 4 miles upstream.

ACCURACY. Stage-discharge relation not permanent. Standard curve well defined. 

Parallel curve used for period June 24 to September 30. Operation of waterstage recorder satisfactory except for short periods mentioned in footnote to dailydischarge table. Daily discharge ascertained by applying to rating table mean 

daily gage height obtained by inspecting recorder graph; shifting-control method 

used June 22-23. Records good except those for short periods during January 

and February, which are fair.

Discharge measurements of Snake River at Neeley, Idaho, during the year ending Sept. 30,

1918.

Date.

Feb. 26

May 18

July 19

Made by 

G.C. Baldwin.........

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

Gage 

height.

Feet. 

5.62

7 An

7.32

Discharge.

Sec.-ft. 

6,870

6.590

 to ofln

13,500

Date.

July 31

Made by 

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

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

Gage 

height.

Feel. 

6.39

6.06

5.19

Discharge.

Sec.-ft.

8,480

5,81')
SNAKE RIVER BASIN. 19

Daily discharge, in second-feet, of Snake River at Neeley, Idaho, for the year ending Sept.

30, 1918.

Day.

2.........

3.........

4. ........

6......... 

1... ......

8.........

9. ........

10.. .......

11.........

12. ........

13........ .

14. ........

15. ........

16.........

17.........

18.........

19. ........

20.........

21.........

22. ........ 

23......... 

24. ........

25.........

26.........

27.........

28. ........

29......... 

30......... 

31.........

Oct.

7 ft^Ul

7,680

7,510

7 340

7,340

7,340

7 Q4fl

7 340

7*340

7 i en

7,010

6,850

6,690

6,530

6,690

6,850

6,850

7,010 

7,010 

7,180

7,180

7,180 

7,180

7,180

7,340 

7,340 

7,340

Nov.

7 340

i, 340

7 340

7,340

7 340

7,- 340 

7,340

7,340

7,340

7,340

7,340

7,340

7,340

7,180

7,180

7,340

7,180

7,180

7,180

7,180

7,010

7,010 

7,010 

7,010

7,010

7,070 

7,120

7 ISft

7,180 

7,180

Dec.

7 lort

7,340

7,340

7,340

7,010 

6,850

6,850

6,690

7,010

6,370

6,370

7,180

7 34fi

7,510

7 34fl

7,180

7,010

7,010

7,010

7,010 

7,010 

7,010

7,010

7,010 

7,180

7,180

7,180 

7,340 

7,510

Jan.

7 680

7^680

7,510

7 340

7' 180

7,010 

7,100

7,000

6, £00

6,610

6,000

5,300

5,000

4,800

5,300

6,530

6,530

6,370

6,370 

6,060 

5,910

6,060

6.370 

6,220

6,060

6,200 

5,850

5

AZJ\

Feb.

5,050

4 700

4' 620

4 490

5,170 

5,610

5 760

5 Q9fi

5,760

5,760

5,910

5,760

5,760

5,760

5 460

5^170

5,030

5,000

5,300

5,400 

5,030 

5,460

6 finfl

6,530 

6,100

6

0Kft

Mar.

5,650

5,650

6,220

6 Q7rt

6,220 

6,370

6.530

6,370

6,650

7,000

7,200

7 400

7^300

7,100

6.750

6,750

6,850

6 Qf*fl

6,900

6,900 

6,900 

6,850

6

ocn

6,850 

7,010

7,340

7,340 

7,510 

7,510

Apr.

7 600

7 QCfi

8,500

8,600

8,500

8,000 

7,680

7,510

7.180

7,180

7,180

7,850

8,730

9,460

10 200

11 400

11,000

10,000

8,910

8,550

8.200 

8,550 

8,910

9 840

10,200 

11,400

12,200

12,200 

11,40J

May.

11,800

13, 100

14 400

16,000 

18,500

18,800

18,800

18,800

19,300

17,800

15,800

13 500

12' 700

12,700

13,500

14,000

13,100

19 7nn

11,800

11,000 

10,000 

9,650

9,650

10,200 

11,800

13,100 14,000- 

14,COJ 

14,OOJ

June.

15,800

16,300

15,800

15,800

16,800 

18,800

22,500

25,200

30,400

32,200

33,300

35,100

36,900

39,300

41,700

44,800

48,000

48 400

47 800

45^900 

44,000 

42,700

42,100

41,500 

41,500

38,500

35,600 

32,600

July.

97 ^?ftfl

18,600

17,600

17,100

16,100 

15,200

14,300

14,300

13,400

12,100

12,500

12,500

12,500

13,400

14,700

14,300

13,400

11,300

10,100 

9,160 

7,920

7,410

7,080 

6,430

5,970

7,410 

9,3,0 

9,730

Aug.

9 73fl

8,980

7,580

7 580

7,' 580

7,920 

8,980

10,500

11,300

11,300

11,300

11,300

10,500

10,500

11,300

11,700

12,100

11,700

10,900

10,100 

9,730 

9,540

Q Qt;n

9,160 

8,620

8,090

7,750 

7,410 

7,240

Sept.

6,910

6,750

6,910

6,910

7,080

7,240

7 7^fi

7,750

8,090

8,260

8,620

8,800

a lfifi

9.160

8 980

9

1GA

9.160

9,160

8,620

7 080

6,120

5,820 

5,820 

5.670

5,520

5,520 

5,670

5,670

5,670 

5,520

NOTE. Stage-discharge relation affected by ice at times during January and February, and discharge 

estimated by comparison with record at Blackfoot station above and by study of temperature graph, 

Jan. 7-18, Jan. 29 to Feb. 2, Feb. 20-22. Feb. 27 to Mar. 3, Mar. 11-23, Apr. 1-6, May 6-7, and June 19. Discharge interpolated because of lack of gage-height record, Nov. 26-27, Feb. 25 and June 28-29.

Monthly discharge of Snake River at Neeley, Idaho, for the year ending Sept. 30, 1918.

Discharge in second-feet.

Run-off in

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

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

Maximum.

7,850

7,340

7,610

7,680

6,530

7,510

12,200

19,300

48,400

27,300

12,100

9,160

48,400

Minimum.

6,530

7,010

6,370

4,800

4,360

5,550

7,180

9,650

14,000

5,970

7,240

5,520

4,360

Mean.

7,130

7,220

7,080

6,300

5,420

6,750

9,210

13,800

33,100

12,800

9,730

7,280

10,500

acre-feet.

438,000

430.000

435,000

387,000

301,000

415,000

548,000

848,000

1,970,000

787,000

598,000

433,000

7,590,000

LAKE WALCOTT NEAR MINIDOKA, IDAHO.

LOCATION. In sec. 1, T, 9 S., E. 25 E., in backwater of Eeclamation Service dam G

miles southeast of Minidoka post office, Minidoka County. 

EECORDS AVAILABLE. April 1, 1909, to September 30, 1918. 

GAGE. Hook gage in wooden stilling well on face of dam at entrance to power house.

Early gage-height record from hook gage in concrete stilling well on point of rocks

in front of power house. Same datum as present gage. Zero of gage, 4,200 feet

above sea-level.
20 SURFACE WATEE SUPPLY, 1918, PAET XII B.

ACCURACY. Gage heights occasionally affected by wind.

COOPERATION. Gage-height record furnished by United States Reclamation Service.

Lake Walcott impounds water for the irrigation of lands in the North Side Minidoka 

project and the South Side Minidoka project of the United States Reclamation Service. 

It has a capacity of 107,240 acre-feet between elevations 4,236 and 4,246 feet; elevation of spillway, 4,240 feet, sea level datum.

Daily contents, in acre-feet, of Lake Walcott near Minidoka, Idaho, for the year ending

Sept. 30, 1918.

Day.

1... ......

6.........

7.........

10.........

11.........

12.........

13.........

14.........

1 ^

16.........

17.........

1 ft

19.........

20.....-..-

21 .........

22.........

23.........

24.........

"25.........

9fi

27

28.........

29.........

30.........

31.........

Oct.

76, 550 

79, 140 

82,070 

85,980 

89, 130

91, 570 

94,250 

96,990 

97,350 

95,790

94,370 

92,510 

91,340 

88,310 

84,940

80', 830 

77, 110 

74,630 

71,720 

69,520

67,980 

66,550 

65,450 

64,360 

64,250

63,040 

63,920 

64,140 

64,140 

63, 920 

64,250

Nov.

64,470 

64,580 

65, 340 

66, 550 

66,990

67,210 

69,190 

71,280 

76,770 

80,950

82,190 

82,520 

82, 520 

84,700 

85,640

85,870 

85,980 

85,290 

85,520 

85,640

85,520 

85,400 

85,290 

84,940 

85,520

85,640 

85, 870 

85,290 

85,520 

86,330

Dec.

85, 870 

85,870 

85,870 

85,640 

85,520

84,700 

85,050 

84,700 

84,820 

85,170

85,290 

83,090 

84,- 120 

85,640 

85,750

85,870 

85,870 

85,750 

85,520 

85,400

85,640 

85,640 

85,640 

85,640 

85,870

85, 290 

85,400 

85,290 

85,980 

85,980 

86,100

Jan.

85,640 

86,450 

85,980 

84,820 

85,750

85,870 

85,400 

85,980 

85, 980 

85,870

84,700 

83,540 

82,860 

82,980 

82,860

83,310 

83,540 

81,850 

84,470 

84,470

84,700 

84,240 

84,120 

84,120 

84,010

84,470 

84,700 

84,700 

82,860 

84,700 

84,120

Feb.

83,200 

82,300 

81,740 

82,070 

81,740

82,190 

83,090 

83,540 

84,120 

82,980

83,310 

83,540 

82,980 

83,540 

83,090

83,090 

83,310 

83,200 

83,090 

83,310

82,860 

83,200 

82,980 

83,540 

84,010

84,120 

84,120 

83,770

Mar.

84,120 

83,310 

83,540 

83,540 

83,200

84,120 

84,120 

84,120 

84,120 

84,470

84,350 

85,170 

84,350 

86,100 

85,870

85,520 

84,940 

85,170 

84,700 

85,050

85,290 

85,520 

85,640 

85,870 

85,870

85,980 

85,640 

85,980 

85,870 

85,980 

85,290

Apr.

85,980 

87,380 

85,870 

86,450 

86,800

86,220 

83,540 

83,540 

83,540 

83,540

83,540 

83,540 

83,540 

86,680 

87,500

89, 130 

87,850 

88,780 

88,550 

84,700

82,860 

82,410 

81,060 

79,030 

77,450

76,100 

77,110 

80,160 

80,490 

80,610

May.

92,860 

92,040 

92,160 

92,860 

93,090

96,030 

98, 320 

96, 870 

97,230 

97, 110

97,110 

97,470 

95,910 

93,440 

92,510

92,860 

93,670 

94,020 

93,550 

94,020

93, 550 

92,040 

90,880 

88,780 

89,250

89,940 

90,990 

94,020 

101,690 

101,930 

98,320

June.

102,050 

102,050 

100,970 

100,850 

98,800

98,680 

99,640 

101,930 

101,690 

103,380

101,930 

102,900 

101,690 

102,410 

103,020

103,740 

103,620 

103,860 

103,860 

103,860

104,100 

102,900 

104,220 

102,780 

103,620

104,700 

104,340 

104,100 

104,820 

100,010

July.

101,450 

100,010 

103,020 

102,410 

102,410

102,900 

104,340 

103,380 

104,220 

103,980

103, 140 

103,020 

104,700 

104,700 

104,220

104,580 

105,430 

104,460 

104,820 

104,220

104,700 

104,460 

103,500 

102,900 

100,270

97,230 

94,950 

92,740 

89,130 

89,940 

92,510

Aug.

94,370 

95,910 

94,840 

91,570 

90,060

88,660 

90,290 

92,860 

96,630 

102,410

104,820 

105, 190 

105,310 

104,100 

105,310

105,550 

104,820 

105,310 

105,310 

102,900

104,820 

101,690 

104,460 

103,620 

104, 820

103,620 

102,050 

103,380 

103,260 

102,660 

102, 170

Sept.

101,210 

99,880 

98,560 

96, 510 

95,910

95,180 

95,180 

95,790 

97,230 

100,490

101,930 

103,020 

104,220 

105,070 

105,070

103,260 

104,820 

105,430 

105,910 

105,790

105,790 

105,910 

105,910 

105,910 

105,670

105,430 

105,670 

103,380 

96,630 

91,230

SNAKE RIVER NEAR MINIDOKA, IDAHO.

LOCATION. In sec. 2, T. 9 S., R. 25 E., 100 yards below Howells ferry, 1 mile below 

Reclamation Service dam, 6 miles southeast of Minidoka post office, Minidoka 

County, nearest railroad point, and 6 miles above Montgomery's ferry station, 

which was discontinued December 31, 1910. Raft River enters between this station and the station at Neeley.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. April 21, 1910, to September 30, 1918.

GAGE. Friez water-stage recorder on right bank directly across river from and at 

same datum as staff gage used prior to August 28, 1911; also Stevens long-distance 

recorder installed in 1915. Gage inspected by employees of United States Reclamation Service.

DISCHARGE MEASUREMENTS. Made from cable about 50 feet below gage.

CHANNEL AND CONTROL. Bed composed of coarse gravel. One channel at all stages. 

Control shifts slightly but infrequently.

EXTREMES OP DISCHARGE. Maximum stage during year from water-stage recorder, 

16.02 feet at 1 a. m. June 21 (discharge, 45,900 second-feet); minimum stage recorded, 5.85 feet at 6 p. m. September 26 (discharge, 3,950 second-feet).

1910-1918: Maximum stage recorded, that of June 21, 1918; minimum stage, 

4.05 feet from 11 a. m. to 3 p. m. October 13, 1914 (discharge, 960 second-feet).
SNAKE RIVER BASIN. 21

JCE. Some shore ice forms in vicinity of gage and river closes farther down; stagedischarge relation slightly affected at times.

DIVERSIONS. The North Side and South Side Minidoka canals divert water between 

the Neeley and Minidoka stations. The nearest diversions below the station 

are the Twin Falls North Side and South Side canals at Milner.

REGULATION. Flow partly regulated by storage in Lake Walcott above Minidoka 

dam (storage capacity about 67,000 acre-feet above spillway).

ACCURACY. Stage-discharge relation not permanent. Standard rating curve well 

defined. Parallel curve used during period July 3 to September 30. Operation 

of water-stage recorder satisfactory. Daily discharge ascertained by applying to 

rating table mean daily gage height obtained by inspecting recorder graph except 

as noted in footnote to daily-discharge table. Records good.

COOPERATION. Gage-height record furnished by United States Reclamation Service.

Discharge measurements of Snake River near Minidoka, Idaho, during the year ending

Sept. 30, 1918.

Date.

July 20

Made by 

C. F. Elford............

Gage 

height.

Feet.

7 9Q

Discharge.

Sec.-ft. 

7,720

Q ^Qft

Date.

July 20

30

Made by Gage 

height.

Feet. 

7.63

6.61

Discharge.

Sec.-ft. 

8,330

5,630

Daily discharge, in second-feet, of Snake River near Minidoka, Idaho, for the year ending

Sept. SO, 1918.

Day.

1.........

3......... Q

..........

8.........

9.........

10.........

11......... 

12.........

13.........

14.........

15......... 

16.........

17.........

18.........

19.........

20.........

21.........

22.........

23.........

24. ........

25.........

26.........

27.........

28......... 

29......... 

30.........

31.........

Oct.

5, 220

1,870

4,870

4,870

4,980 

4,870

5,460

6,830

7,180

7,480 

7,480

7,480

8,020

8,300 

8,300

7,750

8; 300

8,020

8,020

7,750

7,480

7,750

7,750

7,480

7,750

7,220 

7,220 

7,220

7,220

Nov.

7,220

6,960

6,960

6,960

6,960

6,450 

6,080

4,980

4,6iO

6,080

6,700 

6,960

6,700

6,830

7,220 

7,220

7,-i80

7,220

7,220

7,220

7,220

6,960

7,220

6,960

7,220

7,480

7,220 

7,220 

7,480

Dec.

7,220

7,480

7,480

7,180

7,480

7,220 

7,220

7,220

6,960

7,220 

6,830

6.830

7,480

7,750 

7,750

7,480

7,480

7,220

7,220

7,220

7,220

7,220

7,220

7,220

7,220

7,220

7,220 

7,220

7,480

Jan.

7,480

7,480

7,220

7,480

7,480 

7,220

7,480

7,750

7,480

6,830 

5,830

5,700

5,580

5,580 

5,950

6,080

6,080

6,700

6,700

6,830

6,700

6,570

6,450

6,320

6,830

6,960

6,960 

6,830

6,400

Feb.

5,460

5,100

5,460 

5,950

6,320

6,200

5,700

5,950 

6,200

6,320

6.320

6,080 

5,950

5,950

5,950

6,080

5,830

5,700

5,830

5,700

5,830

6,320

6,450

6,320

Mar.

6,080

K COfi

5,830

5,830

6,200 

6,200

6,200

6,580

6,200

6,200

6,700

7,750

7,480 

6,960

6,700

6,700

6,830

6,700

6,830

6,830

6,830

6,830

6,960

6,830

7,480 

7,220

6,960

Apr.

7,480

7 480

7^750

7,480

7,480 

6,960

6,700

6,580

6,450 

6,700

7,220

8,020

8,870 

9,480

9,800

10,100

8,870

7,480

7,480

8,020

8,020

8,870

8,300

6,830 

6,830

7 7^n

May.

8,580

8,580

8,870

9,480

10,500

12,300 

14,700

15,500

15, 900

15,900

15,900 

15,500

13, 900

11,600

10,100 

10,100

10,800

10,800

10,800

10,100

9,800

8,870

7,750

7,220

7,220

7,480

7,480

6,580 

8,870

10,100

June.

10, 800

13, 900

13,100

13,100 

13,900

17,200

26,800 

28,200

30,100

31,000

33,400 

35,700

45,300

45,800

41,000

on Ann

40,000

40,000 

39,600

00 7f|A

July.

25,300

14,800

14,000

13.000 

12,800

11,500

10,800

9,580 

8,670

9,260

10,800

9,420 

10, 200

12,000

U 7ftft

10,800

9,260

8,520

6,650

6,530

6,400

6,020

5,780

5,660 

5,660 

5,660

6,020

Aug.

6,280

6,530

6,150

5,780

5,780 

5,900

6,150

6,280

8,670 

9,110

8,960

7,430

7,830 

8,810

Q n«n

10,800

7,830

8,100

7,430

7,300

6,910

7,970

6,400

6,020 

5,780

£ Cfifl

5,530

Sept.

5,290

5,290

5,780

5,410

5,060

5,170 

5,290

5,290

5,530 

7,040

7,170

8,380

7,560

7,010

7,700

5,900

5 290

4 940

4,270

S OQft

7,300 

7,700

NOTE. Stage-discharge relation affected by ice Jan. 31 to Feb. 3. 

second-feet.

Discharge estimated Feb. 1-3, 5,900
22 SURFACE WATER SUPPLY, 1918, PART XII B.

Ifonthly discharge of Snake River near Jfinidoka. Idaho, for the year ending Sept. .90, 1918

Month.

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

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

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

Discharge in second-feet.

Maximum.

8,300 

7,480 

7,750 

7,750 

6,700 

7,750 

10,100 

15, 900 

45,800 

25,300 

10,800 

8,380

45, 800

Minimum.

4,870 

4,610 

6,830 

5,580 

5,100 

5,830 

6,450 

6,580 

10,800 

5,660 

5, 530 

4,160

4,160

Mean.

6,990 

6,880 

7,280 

6,760 

5,980 

6,660 

7,860 

10,800 

30, 400 

10, 300 

7,310 

5,950

9,430

Run-off in 

acre-feet.

430,000 

409,000 

448,000 

416,000 

332,000 

410,000 

468,000 

661,000 

1, 810, 000 

633,000 

449,000 

354, 000

6, 820, 000

LAKE MILNER AT MILNER, IDAHO.

LOCATION. In sec. 29, T. 10 S., R. 21 E., in backwater of Twin Falls companies'

dam at Milner, Cassia County.

RECORDS AVAILABLE. April 10, 1911, to September 30, 1918. 

GAGE. Staff gage at dam. A Lietz and a Friez water-stage recorder have also been

used for short periods. All gages have same datum. 

ACCURACY. Gage heights occasionally seriously affected by wind. 

COOPERATION. Gage-height record furnished by Twin Falls North Side I^and &

Water Co. and Twin Falls Canal Co.

Daily gage height, in feet, of Lake Milner at Milntr, Idaho, for the year ending Sept. 30,

1918.

Day.

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

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9..............

10..............

11..............

12..............

13..............

14..............

15..............

16..............

17..............

18..............

19..............

20..............

21..............

22..............

23..............

24..............

25..............

26..............

27..............

28..............

29..............

30..............

31..............

Oct.

' 8.70

9.28

9.58

9.28

9.16

9.24

9.50

10.26

8.20

8.00

8.00

8.00

8.00

8.00

8.45

8.60

8.70

9.00

9.00

9.20

8.90

9.00

9.00

9.60

9.40

8.60

8.20

8.70

o an

Nov.

9.00

8.90

8.90

8.70

7.80

7.50

7.00

7 50

6.90

7.00

8.40

9.20

9.20

8.20

8.20

8.40

8.60

7.80

8.10

8.20

8.30

8.10

8.30

8.10

8.35

8.30

8.30

8.30

8.30

Dec.

8.30

8.30

8.50

8.40

8.35

8.40

8.20

8.40

o en

8.30

7.60

8.20

8.00

8.20

8.20

8.30

8.30

8.30

8.00

8.00

8.00

8.40

8.10

8.10

8.10

8.30

8.10

8.10

Jan.

8.30

8.20

8.30

8.20

8.20

9.00

7.90

9.80

10.00

Q Aft

9

CA

9.40

8.40

8.40

8.30

8.30

8.50

8.40

8.40

8.40

8.40

8.50

8.50

8.50

8

0A

8.30

9 9rt

8.50

o on

Feb.

8.80

7.50

7.90

8.00

7.94

7.91

8.20

8.72

8.40

8.20

8.40

8.20

8.50

8.50

8.50

8.35

8.30

8.40

8.50

8.40

8.40

8.40

8.40

8.20

8.70

8.60

8.70

Mar.

8.70

8.50

8.50

8.20

8.60

8.85

8.56

8.60

8.70

8.75

8.70

8.80

8.40

8.90

8.95

8.55

8.40

8.20

8.50

8. £8

8.48

8.50

8.74

8.64

8.54

8.54

8.70

8.90

8.60

Apr.

8.65

0.02

9.04

9.08

9.16

9.17

8.79

8.75

8.86

8.89

9.08

9.02

8.91

9.05

9.42

9.28

9.27

9.35

9.21

9.24

8.82

8.91

9.18

9.38

0.50

9.79

9.94

9.62

9.68

9.74

May.

10.00

10.25

10.08

10.20

10.26

10.35

10.35

10.30

10.38

10.37

10.37

10.34

10.31

10.36

10.38

10.40

10.38

10.40

10.44

10.40

10.43

10.40

10.40

10.32

10.38

10.37

10.34

10.42

10.37

10.27

June.

10.53

10.51

10.48

10.54

10.50

10.52

10.54

10.52

10.49

10.52

10.52

10.52

10.51

10.54

10.54

10.55

10.62

10.64

10.65

10.63

10.62

10.60

10.62

10.63

10.65

10.67

10.67

10.66

10.66

10.65

July.

10.66

10.67

10.68

10.71

10.72

10.71

10.71

10.72

10.71

10.72

10.72

10.72

10.74

10.74

10.73

10.78

10.78

10.76

10.75

10.74

10.74

10.76

10.78

10.68

10.96

10.95

10.81

10.80

10.34

10.72

Aug.

10.76

10.87

11.01

11.00

10.75

10.72

10.72

10.76

10.82

10.89

10.88

10.92

10.94

10.92

10.88

10.95

10.90

10.88

10.89

10.92

10.92

10.91

10.91

10.91

10.92

10.90

10.88

10.89

10.90

10.93

10.91

Sept.

i

10.94

10.89

10.93

10.90

10.88

10.88

10.90

10.88

10.94

10.92

10.88

10.92

10.94

10.92

10.91

10.92

10.64

10.02

10.40

10.78

10.80

10.86

10.37

10.48

10.56

10.58

10.42

10.28

9.93

9.82

NOTE. Data on contents corresponding to gage heights are not available.
SNAKE RIVER BASIN. 23

SNAKE RIVER AT MILNER, IDAHO.

LOCATION. In sec. 29, T. 10 S., R. 21 E., 300 yards below Milner dam, at Milner, 

Twin Falls County. No tributaries enter Snake River between Minidoka station 

and Milner, and no noteworthy amount of water between Milner and station 

near Twin Falls except seepage and spring water.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. May 10, 1909, to September 30, 1918.

GAGE. Staff gage in three sections on left bank; installed October 20, 1909; high 

and low sections vertical, middle section inclined. An auxiliary gage in two 

sections is located about 100 yards below the main gage, to which it bears no 

definite relation; low-water section, an inclined staff on right bank; high-water 

section, an inclined staff on left bank. Datum of auxiliary gage lowered 1.00 

foot July 30 and 1.00 foot September 7, 1916. Gage used prior to October 20, 

1909, was a vertical staff on right bank, at about the same datum as present 

gage. Observers, Deming and McConnel.

DISCHARGE MEASUREMENTS. Made from a cable at gage, from foot planks at the 

auxiliary low-water gage, or by wading. Measurements may also be made from 

the suspension highway bridge a quarter of a mile below the main gage but conditions for making measurements at this bridge are poor.

CHANNEL AND CONTROL. Bed of stream at both the main gage and the auxiliary gage 

consists of lava rock, which forms the control for the low-water gage. Control 

for main gage is an old crib-and-rock diversion dam and is practically permanent 

for medium and high stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 19.90 feet at 

6.50 p. m. June 21 (discharge, 40,000 second-feet); minimum stage recorded, 1.56 

feet July 26, 27, and 28 (discharge, 26.8 second-feet).

1909-1918: Maximum stage recorded, 20.1 feet June 12, 1909 (discharge, 44,400 

second-feet); minimum stage, 1.08 feet (old datum of auxiliary gage) August 

17-18, 1915 (discharge, 9 second-feet).

ICE. Stage-discharge relation not seriously affected by ice; observations discontinued during part of winter because gages are inaccessible to observer.

DIVERSIONS. The Twin Falls canals divert water at Milner dam, just above station. 

During part of the season practically the entire flow of the river is taken by 

these canals.

REGULATION. Flow past station during the irrigation season is regulated at Milner 

dam.

ACCURACY. Stage-discharge relation practically permanent during the year. Rating 

curve well denned below 24,000 second-feet. Gage read occasionally to halftenths October 1-8 and January 15 to March 28; twice a day to hundredths April 

6 to September 30. Daily discharge ascertained by applying mean daily gage 

height to rating table, except on days when marked changes occurred, when the 

mean of the discharge corresponding to the gage readings was used. Records 

poor October to March; fair April to June; good July to September.

COOPERATION. Gage-height record and some discharge measurements furnished by 

Twin Falls North Side Land & Water Co. and the Twin Falls Canal Co.

Discharge measurements of Snake River at Milner, Idaho, during the year ending Sept.

30, 1918.

Date.

June 5 

July 25

27

Made by 

Burdick and McConnel.

W.N. McConnel.......

Gage 

height.

Feet. 

13.70 

1.90

1.56

Discharge.

Sec.-ft. 

7,010 

42.3

26.2

Date.

July 29 

Aug. 3

Sept. 6

Made by 

Baldwin and McConnel. 

W. N. McConnel.......

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

Gage 

height.

Feet. 

1.57 

1.93

1.68

Discharge.

Sec.-ft. 

28.2 

39.4

34.4

NOTE. Burdick and Adams, employees of the North Side Land & Water Co.; McConnel, employee of 

the Twin Falls Canal Co.
24 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Snake River at Milner, Idaho, for the year ending Sept,

30, 1918.

Day.

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

2...................

3...................

4...................

5...................

6...................

7...................

8...................

9...................

10...................

11...................

12...................

13...................

14...................

15...................

16...................

17...................

18...................

19................... 

20...................

21...................

22..................

23...................

24...................

25...................

26. ..................

27. ..................

28. ..................

29...................

30. ..................

31.................

Oct.

2,280

2.490

2,490

2,350

2,280

2,280

2.490

2,490

Jan.

. .. ..

4,380

4,380

4,480

4,480

5,300

K Cflfi

4,380

4 840

5,300

5,060

Feb.

4,590

5,300

5,830

5,970

5,060

5,060

5,300

5,180

5,060 

5, 180

5,060

5,060

5,060

5,060

4,590

5,830

5,830

Mar.

5,560

5,440

5,310

5,060

5,830

5,830

5,830

5,830

5,830

5,060

6,500

5,060

5,060

4,820

4,820

4,380

4,850

5,110

5,370

Apr.

5,630

5,890

6,150

6,410

6,670

6,970

5,970

4,380

3,970

3,790

3,970

3,790

3,520

4,170

4,590

6,970

7,280

7,900

7,280 

7,280

3,100

3,430

2,940

3,700

4,270

2,490

2,350

1,790

May.

2,790

2,790

3,130

3,130

3,980

5,690

8,470

8,720

10,800

10,300

9,750

9,230

8,470

6,550

4,730

4,060

4,730

4,640

4,910 

4,300

3,770

863

1,560

1,940

2,820

1,720

1,970

7,490

4,730

June.

7,130

5,390

8,220

7,610

6,780

7,010

7,490

16,800

15,600

16,200

21,000

21,800

23,100

24,200

25,400

29,300

31,300

33,700

37,200 

38, 300

38,000

36,500

35, 200

33, 700

33,500

34,700

33,000

33, 700

28,900

July.

20,300

15,000

9,940

9,240

8,070

6,9,70

5,800

5,100

4,060

4,550

3,630

2,810

3,500

6,330

5,900

7,370

5,800 

3,560

2,710

805

36

38

34

26

26

26

28

28

Aug.

30

36

46

298

34

30

32

32

34

32

2,660

2,320

3,080

1,540

1,040

2,730

4,730

4,220

3,880 

7,010

2,520

4,500

2,080

2,200

549

1,950

606

769

300

36

36

Sept.

3&

32

32

3»

32

34

34

32

292

284

292

2,910

1,520

772

1,740'

4,730

5,700

2,600

2,210 

1,170

54

28fr

73&

36

1,080

509

512

3,420

4,640

2,920

NOTE. No record obtained Oct. 9 to Jan. 14. Discharge interpolated or estimated because of lack of gage 

heights, Jan. 20-21,23, Feb. 13,27, Mar. 2-4,8,14-16,23, and Mar. 29 to Apr. 4.

Discharge estimated from records at other stations as follows: Jan. 28 to Feb. 4, 5,000 second-feet, and 

Mar. 19-21, 5, 500 second-feet.

Monthly discharge of Snake River at Milner, Idaho, for the year ending Sept. 30, 1918.

Month.

October 1-8. ...........................................

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

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

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

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

Discharge in second-Jeet.

Maximum.

2,490 

5,800 

5,970 

6,500 

7.900 

10,800 

39, 800 

20,300 

7,010 

5,700

Minimum.

2,280 

4,380 

4,590 

4,380 

1,790 

863 

5,390 

26 

30 

30

Mean.

2,390 

, 4,960 

5,180 

5,410 

4,840 

5,040 

24,400 

4,650 

1,590 

1,290

Run-off in 

acre-feet.

37,900 

167,000 

288,000 

333,000 

288,000 

310,000 

1,450,000 

286,000 

97, 800 

' 76,800

SNAKE RIVER AT KING HILL, IDAHO.

LOCATION. In sec. 7, T. 5 S., R. 11 E., 300 feet east of Oregon Short Line Railroad 

station at King Hill, Elmore County. Big Wood River enters from north about 

20 miles above station.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. May 13, 1909, to September 30, 1918.

GAGE. Inclined staff on right bank; installed August 17, 1910. Original gage, used 

from May 13, 1909, to March 1, 1910, was vertical staff on left bank at practically 

same section as present gage, but at datum 2.2 feet higher; temporary Staff gage 

three-quarters of a mile above present site used from March 7 to August 16, 1910.
SNAKE EIVER BASIN. 25

DISCHARGE MEASUREMENTS. Made from cable 100 feet below gage.

CHANNEL AND CONTROL. Bed composed chiefly of gravel. Control is lava reef 

partly overlain with gravel; shifts slightly.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 16.3 feet June 22 

(discharge, 47,200 second-feet); minimum stage, 6.0 feet on several days in July, 

August, and September (discharge, 7,530 second-feet).

1909-1918: Maximum stage recorded, 16.3 feet June 22, 1918 (discharge, 47,200 

second-feet); minimum stage, 4.5 feet July 7-9 and August 15 and 16,1910 (discharge, 4,760 second-feet).

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. No important diversions for irrigation are made between this station 

and the station at Milner.

REGULATION. Flow regulated by diversions at Milner. During certain parts of 

irrigation season practically entire flow of river is appropriated and flow at King Hill 

is derived largely from springs and seepage water from Twin Falls tracts.

ACCURACY. Stage-discharge relation practically permanent during year. Rating 

curve well defined. Gage read to hundredths once daily. Daily discharge ascertained by applying daily gage height to rating table and interpolating for days 

of no gage height. Records good.

COOPERATION. Gage-height record furnished by United States Reclamation Service.

The following discharge measurement was made by G. C. Baldwin: 

May 15: Gage height, 7.94 feet; discharge, 13,200 second-feet.

Daily discharge, in second-feet, of Snake Jttver at King Bill, Idaho, for the year ending

Sept. SO, 1918.

Day.

1...

2...

3...

4...

5...

6 .

7...

8...

9. .

10...

11...

12...

13...

14...

15...

16...

17...

18...

19...

20...

21...

22...

23...

24...

25...

26...

27...

28...

29...

30...

31

Oct.

9,770

10.400

11,000

11,000

11,000

11,000

10,700

11,000

16,200

13,000

12,400

12,400

12,000

12,000

11,700

13,000

12,400

13,400

12,400

12,400

15,200

17,000

12,400

13,000

13,000

12,400

12,400

14. 400

17,000

11,000

11,400

Nov.

12,400

14,100

13,400

15,900

15,900

11,400

11,400

12,000

10,100

9,770

9,770

9,770

10,400

10,400

10,400

10,400

11,000

13,200

15, 500

10, 400

10,700

11,700

10,700

10,700

14,400

11,000

11,400

12, 700

12,200

11,700

Dec.

14,2,00

16,600

11,400

11,000

11,000

11,000

11,000

10,400

10,700

11,000

14,100

11,700

13,000

10,700

11,000

12,000

11,000

11,400

11,400

12,400

10, 400

10,700

10,400

11,000

12,400

10,400

10,700

10, 700

10,700

10,400

10,700

Jan.

10,400

11,400

11,000

11, 400

10,400

14,100

14,800

15,200

14,800

9,170

14,400

15, 200

12,400

12,400

12,000

12,000

12,000

12,400

12,000

12,400

13,000

13,000

13,000

12,400

13,000

12,000

12, 400

12, 000

13,800

13,400

13,000

Feb.

11,700

11,700

11, 400

11,700

11, 700

12,000

12,400

12,400

13, 000

13, 800

12,700

12,000

12,700

11,700

12,700

12,700

12,700

12,400

12,000

12,400

12,400

12,400

12,400

12,400

11,700

12,400

13,000

13, 000

Mar.

13,000

13,000

12,400

12,400

11,700

12, 700

12,700

12, 400

12,000

12,200

12,400

12,700

13,800

12,400

13,800

14,400

13,400

13, 000

12, 700

13,800

13,800

13,800

12, 700

12,000

12,400

12, 000

12,400

11,700

12,400

12,000

11,700

Apr.

11,400

11,700

13,400

13,800

13,800

13,000

13,800

12,700

11,400

11,000

10, 700

10,700

10, 700

10,400

11,000

12, 700

13,800

13,800

15,200

13,400

13,800

11,700

9,770

9,770

10,400

9,770

9,770

10,700

9,770

8,310

May.

8,310

9,170

9,470

10,400

11,000

10,700

13,000

16,200

16,600

18,800

17, 400

17,000

16,600

15, 500

14, 400

12,700

10,700

11,400

11,000

11,400

10,700

11,400

10,400

9,170

8,310

8,040

8,040

9,470

9,770

8,310

15,500

June.

13,000

15,500

13,000

16,200

15,500

14,800

14, 400

15,200

18,200

21,100

25, 800

27,400

29, 500

30, 700

31,600

34,100

36,600

39,200

42, 100

44,700

46, 800

47,200

45,100

44,300

41, 700

40,900

40,900

40,000

40,000

36,400

July.

32, 800

26,600

20,000

17,400

16,600

15,500

15, 200

14,400

13, 000

13,000

12, 700

12,000

10,700

10,400

12,400

11,000

11, 400

12, 700

13,400

12, 400

11,000

9 470

9; 470

8,880

8,040

7,530

7,530

7,530

7,530

7,530

7,530

Aug.

7, 530

7,530

7,530

7,530

7,780

7,780

7,780

7,780

7,530

7,530

7, .530

7,530

11,000

11,000

11,000

9,470

11,000

10, 700

12,000

12,400

15,900

9,770

12,400

9,170

9,170

9,170

11,000

9,470

8,880

8,310

8,040

Sept.

7,780

7,530

7,530

7,530

7,780

7,780

7,780

7,780

7,780

8,310

8,040

8,310

9,770

10,100

10,400

11, 000

12,400

15,900

10,400

10,400

10,700

9,790

8,880

9,770

8,880

8,590

9,170

9,770

13,400

13,800

NOTE. Discharge interpolated because of lack of gage heights, Nov. 18, 29, Dec. 1, 5, 6, 9, 16, Mar. 10, 

June 9, 30, Aug. 25, and Sept. 22.
26

Monthly di

SURFACE WATER SUPPLY, 1918, PART XII B.

of Snake River at King Hill, Idaho, for the year ending Sept. SO, 1918.

Month.

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

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

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

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

Discharge in second-feet.

Maximum.

17,000 

15,900 

16,600 

15,200 

13,800 

14,400 

15,200 

18,800 

47,200 

32,800 

15,900 

15,900

47,200

Minimum

9,770 

9,770 

10,400 

9,170 

11,400 

11,700 

8,310 

8,040 

13,000 

7,530 

7,530 

7,530

7,530

Mean.

12,500 

11,800 

11,400 

12,600 

12,300 

12,700 

11,700 

12,000 

30,700 

12,800 

9,390 

9,570

13, 300

Run-off in 

acre-feet.

769,000 

702,000 

701,000 

775,000 

683,000 

781,000 

696,000 

738,000 

1,830,000 

787,000 

577,000 

569,000

9,610,000

SNAKE RIVER NEAR MTTRPHY, IDAHO.

LOCATION. In NW. J sec. 18, T. 2 S., R. 1 E., three-quarters of a mile below Swan 

Falls power plant, 1} miles below company ferry, and 12 miles east of Murphy, 

Owyhee County. Gage is in Ada County, 38 miles below mouth of Bruneau River.

DRAINAGE AREA. 41,900 square miles (measured on United States Land Office 

maps).

RECORDS AVAILABLE. August 21, 1913, to September 30, 1918.

GAGE. Friez water-stage recorder on right bank a quarter of a mile below house on 

ranch of S. N. Glass, installed September 7, 1914; inspected by S. N. and J. G. 

Glass. Temporary vertical staff gage installed August 29, 1912, was replaced 

August 22, 1913; Friez water-stage recorder, temporarily installed from December 

13, 1913, to June 27, 1914. All gages at practically same site and datum. Records prior to August 21, 1913, fragmentary.

DISCHARGE MEASUREMENTS. Made from ferry boat li miles above gage.

CHANNEL AND CONTROL. Bed composed of lava rock overlain with deposits of sand, 

silt, and gravel, where not scoured out by current. Control subject to shift 

within well-defined limits. Banks not subject to overflow.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder, 

13.95 feet at 10 p. m. June 22 (discharge, 47,300 second-feet); minimum stage not 

definitely determined, but probably occurred during period of no record.

1912-1918: Maximum stage recorded in 1918; minimum stage about 2.25 feet 

at 6 a. m. August 6, 1917 (discharge, about 5,000 second-feet).

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. A number of small pumping plants divert water for irrigation between 

this station and that at King Hill.

REGULATION. Large diurnal fluctuations in stage are due to the manipulation of gates 

at dam above, and to variation in load at power plant, but because of small amount 

of storage obtained at dam the changes are of short duration.

ACCURACY. Stage-discharge relation not permanent during year. Two rating curves 

used, one well defined applicable October 1 to June 22, the other fairly well 

defined applicable June 23 to September 6. Operation of water-stage recorder 

satisfactory. Discharge ascertained by applying to rating table mean daily gage 

height obtained by inspection of recorder graph. Records can not be considered 

better than fair, as no measurements were made during year.

COOPERATION. Gage-height record furnished by Idaho Power Co. 

No discharge measurements were made during year.
SNAKE EIVER BASIN. 27

Daily discharge, in second-feet, of Snake River near Murphy, Idaho, for the year ending

Sept. 30, 1918.

Day.

1...

2...

3...

4...

5...

6...

7...

8...

9...

10...

11...

12...

13...

14...

15...

16...

17...

18... 

19...

20...

21...

22...

23...

24...

25...

26...

27...

28...

29...

30...

31

Oct.

"8,870

10,000

10,600

11,200 

12,000

14,500

15,300

15,800

15,300

15,000

13,600

13,600

12,900

13,300

13,600

14,000

14,400

14,800 

15, 100-

15,500

14,500

15,500

16,300

14,800

14,800

14,400

14,000

14,300

13,600

16,000

13,800

Nov.

14,000

14,500

14,800

15,300 

14,000

15,500

13,800

13,800

13,600

12,400

12,000

U,000

11,600

13,100

12,900

12,900

13,300

13,300 

13,600

15,000

13,100

13,600

13,800

13,600

13,600

13,800

13,600

13,600

14,000

14,300

Dec.

14,000

14,300

14,300

14,000 

14,300

14,300

14,000

13,800

13,800

13,600

13,800

13,300

13,600

13,600

13,100

13,100

13,600

13,300 

13,800

13,600

13,600

13,300

13,600

12,600

13,800

13,600

13,300

13,300

13,300

13,300

13,300

Jan.

13,600

13,600

13,800

13,800 

14,000

12,600

14,000

14,500

13,800

14,800

11,000

12,900

14,500

13,100

12,400

12,200

12,200

12,200 

12,600

12,000

12,400

12,900

12,600

12,900

12,600

12,900

12,400

12,200

12,200

12,600

13,300

Feb.

13,100

11,800

11,600

11,400 

11,600

11,800

12,000

12,200

12,400

12,900

13,300

13,100

12,600

12,000

12,400

12,900

12,400

12,600 

12,400

12,000

12,200

12,400

12,200

12,400

12,600

12,000

12,200

13,100

Mar.

13,100

12,900

12,600

12,400 

12,400

12,000

12,400

12,600

12,600

12,200

12,600

12,900

12,900

13,600

12,900

13,300

14,000

13,600 

13,300

13,100

13,800

13,800

13,800

13,300

13,100

12,900

13,100

13,300

12,900

12.900

12,600

Apr.

12,400

12,400

12,600

13,800 

14,000

14,000

13,600

14,000

12,900

11,800

11,800

11,600

11,600

11,200

11,400

11,800

13,300

13,800 

14,300

14,800

13,800

13,600

12,000

10,400

10,000

10,200

10,000

10,000

10.800

9,860

May.

8,570

s,ooa

8,720

9,350 

10,200

10,600

11,000

12,900

15,300

16,300

18,100

17,100

16,800

16,300

15,300

14,300

12,900

11,000 

11,600

11,600

11,800

11,200

11,000

10,400

9,190

8,280

7,870

8,280

9,190

10,000

9,190

June.

12,600

13,800

14,500

13,800 

15,500

15,500

15,000

14,800

15,800

19,000

21,900

25,200

27,000

28,800

30,300

31,900

33,800

35,800 

37,900

41,200

44,000

46,100

46,100

45,300

44,000

41,600

40,800

40,800

39,900

39,500

July.

39,100

35,800

22,500

15,800

14,800

14,100

13,300

12,600

11,900

11,100

10,400

10,500

10,400

9,890

9,380

8,870

8,360

7,850

7,330

6,820

6,310

6,670

7,470

6,830

6,910

Aug.

7,180

6,910

7,180

7,090 

7,000

7,000

7,370

7,370

7,180

7,270

7,180

6,910

7,370

10,100

9,930

9,770

8,680

9,330 

10,100

10,400

11,200

13,100

9,930

10,800

8,440

9,470

8,320

8,800

8,560

7,990

7, 770

Sept.

7,270

7,180

7,180

6,910 

6,830

6,830

10,200

NOTE. Braced figures indicate mean discharge for the period; estimated from flow at other stations on 

Snake River. Discharge interpolated because of no gage heights, Oct. 14-19, 26. Apr. 18. 19, July 8-12, 

20-26.

Monthly discharge of Snake River near Murphy, Idaho, for the year ending Sept. 30, 1918.

Month.

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

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

Discharge in second-feet.

Maximum.

16,300 

15, 500 

14,300 

14,800 

13,300 

14,000 

14,800 

18,100 

46,100 

39,100 

13,100

16,100

Minimum.

8,870 

11,000 

12,600 

11,000 

11,400 

12,000 

9,860 

7,870 

12,600 

6,310 

6,910

Mean.

13,900 

13,600 

13,600 

13,000 

12,300 

13,000 

12, 300 

11,700 

29,700 

13,000 

8,570 

9,570

13,700

Run-off inacre-feet.

855, 000 

809,000 

836,000 

799,000 

683,000 

799,000 

732,000 

719, 000 

1, 770, 000 

799,000 

527,000 

569,000

9,900,000

SNAKE RIVER AT WEISER, IDAHO.

LOCATION. In sec. 31, T. 11 N., R. 5 W., a third of a mile above wagon bridge at 

Weiser, Washington County. Between this station and that near Murphy, 

Sucker Creek and Owyhee and Malheur rivers enter Snake River on left and Boise, 

Payette, and Weiser rivers on right.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. October 8, 1910, to September 30, 1918. Fragmentary gageheight records obtained by Weather Bureau since 1895.

82374 22 WSP 483 3
28 SURFACE WATER SUPPLY, 1918, PART XII B.

GAGE. Inclined concrete gage on right bank; installed by Weather Bureau; read by 

J. W. Lapish. Gage used October 8,1910, to September 3C, 1914, was inclined staff 

on right bank 200 yards below wagon bridge at different datum.

DISCHARGE MEASUREMENTS. Made from cable 200 yards below bridge.

CHANNEL AND CONTROL. Bed composed of rocks and coarse gravel. Control fairly 

permanent.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 11.0 feet June 24 

(discharge, 63,400 second-feet); minimum stage, 2.0 feet on several days in July, 

August, and September (discharge, 7,140 second-feet).

1910-1918: Maximum stage recorded, 14.5 feet (United States Geological Survey 

gage datum) June 15,1912 (discharge, 73,800 second-feet); minimum stage, 1.5 feet 

(Weather Bureau datum) at 8 a. m. August 28 and 29, 1915 (discharge, 5,550 

second-feet).

ICE. Stage-discharge relation not seriously affected by ice.

DIVERSIONS. Some water is diverted between Weiser and the station near Murphy.

REGULATION. Diurnal fluctuations during periods of low water due to the operation 

of Swan Falls power plant above.

ACCURACY. Stage-discharge relation permanent during year. Rating curve well 

defined. Gage read to tenths once daily. Daily discharge ascertained by applying daily gage height to rating table. Records good, except for period July to 

September for which they are fair because of diurnal fluctuations caused by 

Swan Falls power plant above and infrequency of gage readings.

COOPERATION. Gage-height record furnished by Weather Bureau.

No discharge measurements were made during year.

Daily discharge, in second-feet, of Snake River near Weiser, Idaho, for the year ending Sept.

30, 1918.

Day.

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

2..............

3..............

4..............

6..............

9.......--.-.--

10..............

11.............. 

12..............

13.....-....-..-

14..............

15...---.-..-.--

16..............

17..............

18..............

19..............

20.... ..........

21.... ..........

22..............

23..............

24..............

25..............

26..............

27..............

28..............

29..............

30..............

31..............

Oct.

17,400 

16,000 

13,700 

12,000 

12,000

12,400 

12,800 

13,300 

13,300 

13,300

15,000 

15,000 

15,000 

15,000 

15, 500

15,500 

15,500 

16,000 

16,500 

17,400

17,000 

17,000 

18,000 

17,400 

17,000

17,000 

17,000 

17,000 

16,500 

16,500 

20,100

Nov. Dec. -

20,100 

19,000 

19,000 

17,000 

19,000

17,400 

18,000 

17,400 

17,400 

17,000

16,000 

16,000 

16,000 

16,000 

16,500

16,500 

16,500 

16,500 

16,500 

16,500

17,000 

17,000 

17,000 

17,000 

17,400

17,400 

17,400 

18,000 

18,500 

20,100

20,100 

20,100 

20,100 

20,100 

19,000

18,500 

19,000 

19,600 

17,400 

17,400

17,400 

17,400 

17,400 

18,000 

18,000

17,400 

17,400 

17,400 

17,400 

18,000

20,100 

20,100 

20, 100 

20,100 

21, 200

23,000' 

25,000 

28,000 

33, 300 

30,600 

29,300

Jan.

27,300 

26,100 

24,200 

21,800 

21,800

21,200 

20,100 

20,100 

19,600 

19,600

19,000 

18,000 

18,000 

18,000 

18,000

17,400 

17,400 

17,400 

18,000 

18,000

18,000 

18,000 

17,400 

17,400 

17,400

17,400 

17,400 

18,000 

18,000 

18,000 

18,500

Feb.

18, 500 

18,500 

18,000 

18,000 

17,400

17,400 

17,400 

18,000 

18,000 

18,000

17,400 

17,400 

17,400 

17,400 

17,000

17,000 

17,000 

17,000 

17,000 

16,500

16,500 

16,500 

16,000 

16,000 

16,000

15,500 

15,500 

15,500

Mar.

15,500 

15,500 

15,500 

16,000 

16,000

16,000 

16,500 

16,500 

16, 500 

17,000

17,000 

17,400 

17,400 

18,000 

19,000

19,600 

21,200 

23,000 

25,400 

27,300

26,700 

27,300 

28,000 

28,000 

29,300

30,600 

32,600 

34,700 

36, 100 

33,300 

31,300

Apr.

31,300 

30,600 

29,300 

28,600 

26,700

25,400 

24; 200 

23,000 

28,000 

30,000

31,300 

31,300 

30,600 

30,600 

30,000

28,600 

28,600 

28,000 

27,300 

26,100

26,100 

26,100 

26,100 

25,400 

24,800

24,800 

2<«,200 

23,600 

22,400 

21,800 

.......

May.

21,800 

21,800 

21,800 

22,400 

23,000

24,200 

27,300 

28,600 

30,600 

32,600

32,600 

33, SCO 

32,600 

31,300 

30,600

29,300 

27,300 

26,100 

2i; 200 

21,200

19,600 

19,600 

20,100 

18,500 

18,000

19,000 

16,500 

16,000 

16,500 

17,000 is,r,oo

June.

t8,500 

32, 400 

'22,400 

124,800 

'25,400

'.38,600 

30,600 

32,000 

33,300 

34,000

41,800 

45,500 

50,700 

53,800 

55,400

55,400 

54,600 

53,800 

56,900 

58,400

60,000 

60,800 

61,600 

63,400 

57,700

55,400 

52,300 

50,000 

47.800 

47,000

July.

45,500 

42,600 

38,200 

28,600 

23,000

19,000 

18,000 

18,000 

16,000 

15,500

15,000 

14,100 

13,700 

12,400 

11,600

11,600 

11,600 

11,600 

11,600 

11,600

11,200 

10,800 

10,400 

9,990 

9,610

8,870 

8,510 

8,160 

7,470 

7,140 

7,140

Aug.

7,140 

7,140 

7,140 

7,470 

7,470

7,470 

7,140 

7,140 

7,140 

7,140

7,140 

7,140 

7,140 

7,140 

7,470

7,470 

7,470 

7,470 

7,470 

7,810

7,810 

7,810 

8,160 

8,510 

12,800

10,800 

9,990 

9,610 

9,610 

9,610 

9,610

Sept.

9,610 

9,610 

9,240 

8,870 

8,160

7,470 

7,140 

7,470 

7,470 

7,810

8,160 

8,510 

8,870 

8,870 

9,990

11,200 

11,200 

12,800 

12,400 

11,600

11,600 

11,600 

11,600 

11,600 

11,200

11,200 

10,800 

10,400 

11,200 

12,400
SNAKE KIVER BASIN. 29

Monthly discharge of Snake River at Weiser, Idaho, for the year ending Sept. 30, 1918.

Month.

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

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

Discharge in second-feet.

Maximum.

20,100 

20,100 

33,300 

27,300 

18,500 

36, 100 

31,300 

33,300 

63,400 

45,500 

12,800 

12,800

63,400

Minimum.

12,000 

16,000 

17,400 

17,400 

15,500 

15,500 

21,800 

16,000 

18,500 

7,140 

7,140 

7,140

7,140

Mean.

15,600 

17,400 

20,600 

19,200 

17,100 

22,700 

27,200 

23,800 

45,100 

15,800 

8,080 

10,000

20,200

Run-off in 

acre-feet.

959,000 

1,040,000 

1,270,000 

1,180,000 

950,000 

1,400,000 

1,620,000 

1,460,000 

2,680,000 

972,000 

497,000 

595,000

14,600,000

SNAKE RIVER AT RIP ARIA, WASH.

LOCATION. In sec. 31, T. 13 N., R. 38 W., at Oregon-Washington Railroad & Navigation Co.'s bridge at Riparia, Whitman County.

DRAINAGE AREA. 102,000 square miles (measured by Weather Bureau).

RECORDS AVAILABLE. October 1, 1915, to September 30, 1918. Gage-height record 

May and June 1900-1902, May 1 to November 30, 1004; July 1, 1905, to December 

31, 1906; February 1, 1908, to June 30, 1910; and August 1, 1910, to February 28, 

1917, obtained and published by Weather Bureau.

GAGE. Chain gage on downstream side of railroad bridge, installed September 12, 

1917; read by R. E. Wilcox. Previous gage was vertical staff in three sections; 

referred to same datum.

DISCHARGE MEASUREMENTS. Made from bridge at gage.

CHANNEL AND CONTROL. Control for stages above low water is Texas Rapids, a 

solid .lava bed half a mile below gage; permanent. Low-water control is sand 

and gravel channel above rapids; subject to change during high water.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 16.0 feet June 14 

and 15 (discharge, 216,000 second-feet); minimum stage recorded, 1.4 feet September 8 and 9 (discharge, 15,000 second-feet).

1916-1918: Maximum stage recorded, 18.2 feet May 30, 1917 (discharge, 256,000 

second-feet); minimum stage recorded in 1918.

ICE. Stage-discharge relation not affected by ice,

DIVERSIONS. A large amount of water is diverted for irrigation.

REGULATION. Flow is regulated to some extent by storage for irrigation in Jackson 

Lake reservoir (capacity, 847,000 acre-feet) and in other smaller reservoirs in 

basin; also by diversions for irrigation.

ACCURACY. Stage-discharge relation below 65,000 second-feet changed slightly during 

high water in June. Rating curves well denned. Gage read to half-tenths once 

daily. Daily discharge ascertained by applying daily gage height to rating table. 

Records excellent.

Discharge measurements of Snake River at Riparia, Wash., during the year ending Sept. 30,

1918.

Date.

T)AP S

Mar. 23

21.

Made by 

T R Newell

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

Gage 

height.

Feet. 

3.25

7.63

8.78

Discharge.

Sec.-ft. 

28.300

74,900

93,000
30 SUEFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Snake River at Riparia, Wash., for the year ending

Sept. SO, 1918.

Day.

5..........

7-.-....--

9. ........

12

13.......-- 

14.........

15.........

17....-----

1 8

1920..:...---

21.........

00

24. ........

26.........

27.........

28.........

9Q

30.........

31.........

Oct.

26,400 

28,000 

28,000 

27,200 

25,600

21,900 

21,900 

21,900 

21,900 

21,900

21,900 

21,900 

21,900 

24,000 

23,300

23,300 

24,000 

24,000 

23,300 

24,000

24,800 

24,800 

24,800 

24,800 

26,400

28,000 

28,000 

26,400 

26,400 

25,600 

24,800

Nov.

25,600 

25,600 

26,400 

26,400 

26,400

26,400 

27,200 

27,200 

26,400 

25,600

25,600 

26,400 

26,400 

26,400 

24,800

23,300 

24,800 

24,800 

24,800 

24,800

24,800 

23,300 

23,300 

24,000 

24,800

24,800 

24,800 

26,400 

26,400 

28,000

Dec.

29,800 

31,500 

35,100 

33,300 

32,400

30,600 

29,800 

28,000 

26,400 

23,300

25,600 

27,200 

28,000 

30,600 

38,800

37,800 

36,000 

43,600 

75,100 

117,000

86,300 

67,200 

62,200 

89,300 

86,300

72,400 

61,000 

116,000 

151,000 

180,000 

153,000

Jan.

131,000 

120,000 

108,000 

92,300 

90,800

89,300 

87,800 

87,800 

86,300 

79,300

77,900 

69,800 

61,000 

57,400 

56,200

55,100 

52,900 

50,700 

52,900 

51,800

51,800 

48,600 

47,600 

44,600 

50,700

68,500 

63,400 

55,100 

52,900 

51,800 

47,600

Feb.

43,600 

36,900 

39,800 

41,600 

42,600

46,600 

47,600 

58,600 

61,000 

55,100

48,600 

48,600 

48,600 

48,600 

46,600

45,600 

44,600 

43,600 

41,600 

39,800

36,000 

35,100 

34,200 

35,100 

35,100

34,200 

36,900 

36,000

Mar.

36,000 

35,100 

35, 100 

36,000 

37,800

39,800 

39,800 

36,900 

36,900 

36,000

36,900 

36,900 

42,600 

44,600 

44,600

43,600 

45,600 

47,600 

57,400 

64,600

71,100 

73,700 

76,500 

80,700 

92,300

98,300 

108,000 

111,000 

101,000 

95,300 

95,300

Apr.

95,300 

93,800 

87,800 

84,900 

76,500

72,400 

69,800 

68,500 

80,700 

87,800

95,300 

109,000 

111,000 

114,600 

104,000

99,800 

96,800 

84,900 

80,700 

76,500

80,700 

84,900 

93,800 

84,900 

86,300

101,000 

95,300 

92,300 

92,300 

95, 300

May.

103,000 

111,000 

122,000 

131,000 

155,000

166,000 

153,000 

141,000 

134,000 

124,000

119,000 

112,000 

108,000 

119,000 

127,000

134,000 

127,000 

131,000 

111,000 

99,800

92,300 

83,500 

82,100 

80,700 

80,700

77,900 

75,100 

72,400 

73,700 

75,100 

80,700

June.

93,800 

87,800 83, 500

92,300 

101,000

117,000 

131,000 

151,000 

167,000 

173,000

184,000 

189,000 

198,000 

216,000 

216,000

194,000 

180,000 

173,000 

166,000 

153,000

153,000 

144,000 

143,000 

141,000 

138,000

138,000 

131,000 

117,000 

95,300 

89,300

July.

86,300 

80,700 

77,900 

67,200 

64,600

60,800 

57,200 

46,000 

44,000 

42,000

41,000 

40,000 

38,000 

36,000 

34,000

34,000 

34,000 

32,000 

29,200 

28,300

27,400 

26,500 

26,500 

26,500 

26,500

26,500 

26,500 

26,500 

26,500 

25,600 

24,000

Aug.

21,000 

20,300 

20,300 

19,000 

19,000

18,400 

17,800 

17,800 

19,000 

 19,000

18,400 

17,800 

17,800 

18,400 

18,400

16,800 

17,300 

17,300 

17,800 

18,400

21,700 

26,500 

26,500 

25,600 

24,800

24,800 

24,000 

21,000 

17,800 

17,800 

17,300

Sept.

17,300 

16,800 

16,800 

16,300 

15,800

15,400 

15,400 

15,000 

15,000 

15,000

15,400 

15,800 

15,800 

16,300 

16,300

17,300 

17,800 

17,800 

18,400 

19,600

20,300 

20,300 

20,300 

19,000 

17,800

17,800 

19,600 

19,600 

19,000 

19,000

Monthly discharge of Snake River at Riparia, Wash., for the year ending Sept. 30,1918.

Month.

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

Discharge in second-feet.

Maximum.

28,000 

28,000 

180,000 

131,000 

61,000 

111,000 

114,000 

166,000 

216,000 

86,300 

26,500 

20,300

216,000

Minimum.

21,900 

23,300 

23,300 

44,600 

34,200 

35,100 

68,500 

72, 400 

83,500 

24,000 

16,800 

15,000

15,000

Mean.

24,500 

25,500 

60,800 

69,100 

43,300 

59,300 

89,900 

110,000 

145,000 

40,700 

19,900 

17, 400

58,800

Run-off in 

acre-feet .

1, 510, 000 

1,520,000 

3,740,000 

4,250,000 

2, 400, 000 

3, 650, 000 

5, 350, 000 

6,760.000 

8,630.000 

2,500,000 

1, 220, 000 

1, 040, 000

42, 600, 000

TRIBUTARY BASINS. 

PACIFIC CREEK NEAR MORAN, WYO.

LOCATION. On line between sees. 22 and 23, T. 45 N., R. 114 W., 500 feet below 

highway bridge on road from Moran to Jackson. 5 miles east of Moran, Lincoln 

County, and half a mile above mouth of creek.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 20, 1917, to September 30, 1918, when station was discontinued.
SNAKE RIVER BASIN. 31

GAGE. Vertical staff in two sections on right bank, installed June 12, 1918, about 40 

feet upstream from former gage and set at a datum 1.22 feet higher; read by 

R. B. Lozier. Vertical staff used in previous season washed out by high water.

DISCHARGE MEASUREMENTS. Made by wading or from two highway bridges 500 feet 

 above gage.

CHANNEL AND CONTROL. Bed composed of gravel; shifts occasionally. No welldefined control.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 3.98 feet at 9.30 

a. m. June 15 (discharge, 3,030 second-feet); minimum stage, 0.20 foot at 6 p. m. 

September 7 (discharge, 62 second-feet). 

1917-1918: Maximum and minimum stages recorded in 1918.

ICE. Records discontinued during winter.

DIVERSIONS. None below gage nor for distance of 3 miles above.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Two rating curves used, one 

well defined, used June 12 to September 11, the other fairly well defined, used 

September 24-30. Shifting-control method used September 12-23. Gage read 

to hundredths once daily. Daily discharge ascertained by applying daily gage 

height to rating table. Records good.

Discharge measurements of Pacific Creek near Moran, Wya., during the year ending Sept.

30, 1918.

Date.

Oct. 5

29 

July 19 

24

Made by 

William Kessler........

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

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

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

Gage 

height.

Fed. 

0.70

3.73

2.18 

.92 

.72

Discharge.

Sec.-ft. 

70.7

2.650

898 

275 

194

Date.

Aug. 7 

25

Sept. 1 

11 

24

Made by 

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

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

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

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

Gage 

height.

Feet. 

0.53

.33

.24 

.30

.24

Discharge.

Sec.-ft. 

136

89.1 

69.8 

79.0

77.1

Daily discharge, in second-feet, of Pacific Creek near Moran, Wyo., for the year ending Sept.

30, 1918.

Day.

l....... .........

2................

3................

4................

5................

6................

7................

8................

9................

10................

11................

12................

13................

14................

15................

June.

2,640

2.770

2.900

3,030

July.

786

704

737

662

646

635

532

482

4*8

420

388

357

482

458

366

Aug.

131

131

148

140

134

131

134

128

128

123

120

123

120

120

120

Sept.

69

69

67

66

66

64

62

73

66

76

78

71

69

80

76

Day.

16................

17................

18................

19................

20................

21................

22................

23................

24................

25................

26................

27................

28................

29................

30................

31................

June

2,980

2.810

2.600

2,480

2,310

2,140

1.770

1,640

1,510

1,380

1,260

1,140

1.020

899

825

July.

340

323

302

270

253

236

220

203

203

203

196

189

189

176

151

134

Aug.

123

118

110

102

102

102

91

91

82

84

78

76

76

75

75

73

Sept.

71

71

67

66

67

69

69

71

75

69

71

69

71

69

73

NOTE. Discharge interpolated because of lack of gage heights, June 13-14, 23-28, and July 20-22.
32 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Pacific Creek near Moran, Wyo.,-for the year ending Sept. 30, 1918.

Month.

June 12-30.... . .........................................

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

Discharge in second-feet.

Maximum.

3.030 

786 

148 

80

Minimum.

825 

134 

73 

62

Mean.

2,010 

377 

109 

70

Run-off in 

acre-feet.

75,700 

23.200 

6,700 

4,170

110,000

BUFFALO FORE NEAR MORAN, WYO.

LOCATION. In SE. } sec. 26, T. 45 N., R. 114 W., H miles north of'Elk post office, 

half a mile above mouth of river, at highway bridge on road from Moran to Jackson, 

and 6 miles east of Moran, Lincoln County.

DRAINAGE AREA. 378 square miles (measured on topographic maps).

RECORDS AVAILABLE. July 9, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff fastened to downstream side of left abutment of highway bridge; 

installed July 21, 1917; read by Mrs. J. G. Brown. A vertical staff, about 500 

feet above present location was used for period July 9-20, 1917.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading 600 feet 

below gage.

CHANNEL AND CONTROL. Bed composed of gravel, shifting occasionally during 

high water. No well-defined control.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 6.78 feet at 11.15 

a. m. June 13 (measured discharge, 5,840 second-feet); minimum stage, 0.51 foot 

September 29 (discharge, 238 second-feet). 

1917-1918: Maximum and minimum stages occurred in 1918.

ICE. Record discontinued during winter.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent during year. Rating curve well 

defined. Gage read to hundredths twice daily. Daily discharge ascertained by 

applying mean daily gage height to rating table. Records good.

Discharge measurements of Buffalo Fork near Moran, Wyo., during the year ending

Sept. 30, 1918.

Date.

Oct. 5

29

July 23

Aug. 7

Made by 

T.R. Newell.. .........

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

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

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

Gage 

height.

Feet. 

1.00

6.78

2.54

Discharge.

i 

Sec.-ft. 

239

a5,840

3,450

1,180

566

i

Date.

A 1-inr Q

23

25

Made by 

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

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

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

Gage 

height.

Feet. 

1.35

.92

.65

.64

Discharge.

Sec.-ft. 

526

369

282

277

0 Estimate for overflow in side channel included.
SNAKE RIVER BASIN. 33

Daily discharge, in second-feet, of Buffalo Fork near Moran, Wyo., for the year ending

Sept. 30, 1918.

Day.

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

2...............

3...............

4...............

5.. .............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

June. July.

2,980

2,970

2,900

2,650

2,520

3,280

2,810

2,530

2,620

2,040

1,980

1,950

1,840

2,080

1,810

Aug. _

725

826

751

751

686

644

582

552

524

612

481

466

430

455

489

Sept.

306

302

302

302

290

277

977

277

351

322

296

277

277

271

Day.

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

qi

June.

........

........

3,920

3,440

2,980

July.

1,770

1,630

i,630

1,520

1,460

1,440

1,260

1,150

1,100

1,100

951

849

821

788

767

746

Aug.

481

466

409

402

398

381

375

368

361

348

341

348

335

335

318

309

Sept.

318

277

271

262

253

247

247

259

284

271

247

244

241

238

274

Monthly discharge of Buffalo Fork near Moran, Wyo., for the year ending Sept. 30, 1918.

Month.

June 28-30............... ......... . . ...... . . ...

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

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

Discharge in second-feet.

Maximum.

3,920

3,280 

826 

426

Minimum.

2,980 

746 

309 

238

Mean.

3,450 

1,800 

482 

283

..... ..

Run-off in

acre-feel.

20,500 

111,000 

29,600 

16,800

178,000

SPREAD CREEK HEAR ELK, WYO.

LOCATION. In NW. \ sec. 9, T. 44 N., R. 114 W., 50 feet below heading of Wolff ditch, 

500 feet above bridge on road from Moran to Jackson, 1| miles above mouth of 

creek, and 3 miles south of Elk post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 14, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank; read by W. E. Wolff. Staff used during 1917 

was on right bank 200 feet below present site.

DISCHARGE MEASUREMENTS. Made by wading at gage.

CHANNEL AND CONTROL. Bed composed of loose gravel; shifting. No well-defined 

control. Banks are low and subject to overflow at medium stages. Two channels 

at low stages; numerous channels at high stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 4.60 feet at 6.30 

p. m. June 15 (discharge, 715 second-feet); minimum stage, 2.18 feet at 7.30 p. m. 

September 4 (discharge, 48 second-feet). 

1917-1918: Maximum and minimum stages recorded in 1918.

ICE. Record discontinued during winter.

DIVERSIONS. Wolff canal, a quarter of a mile above gage, diverts a maximum of 3 

second-feet. No diversions of any size below gage.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Three fairly well defined 

rating curves used; one applicable June 13-25, one July 1&-21, and the other July 

22 to September 30. Shifting-control method used June 26 to July 17. Gage 

read to hundredths once daily. Daily discharge ascertained by applying daily 

gage height to rating table. Records fair.
34 SURFACE WATER SUPPLY, 1918, PART XII B.

Discharge measurements of Spread Creek near Elk, Wyo., dunng the year ending Sept. SO,

1918.

Date.

Oct. 6

24

July 18

25

Made by 

William Kessler. .......

T.R. Newell.. .........

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

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

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

Gage 

height.

Feet. 

0.85

4 40

3.81

2.74

2.78

Discharge.

Sec.-ft. 

61.1

666

517

139

136

Date.

Aug. 6

25

Sept. I

12

25

Made by 

T.E. Newell.. .........

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

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

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

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

Gage 

height.

Feet. 

2.42

2.28

2.21

2.20

2.22

Discharge.

Sec.-ft. 

81.7

60.5

51.7

51.3

52.4

Daily discharge, in second-feet, of Spread Creek near Elk, Wyo., for the year ending Sept.

SO, 1918.

Day.

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

2...............

3... ............

5...............

6...............

8...............

9...............

10........-.'.....

11...............

12...............

13...............

14...............

June.

570

678

715

July.

298

280

273

225

238

221

213

176

170

167

157

1 £9

Aug.

89

80

89

89

86

80

77

76

77

77

74

76

76

84

82

Sept.

53

53

52

48

49

50

49

50

52

63

52

cn

50

EA

£0

Day.

16...............

17...............

18...............

19

20. ..............

2\. ..............

22...............

23...............

25...............

26...............

28...............

OQ

^ft

31 ...............

June.

700

690

630

632

590

618

465

470

525

542

444

418

403

314

July.

159

143

136

131

132

131

121

124

121

134

132

108

108

103

102

92

Aug.

73

70

69

66

66

64

66

62

60

59

59

60

59

59

58

Sept.

52

50

52

50

50

62

52

.53

52

53

52

50

50

50

53

Monthly discharge of Spread Creek near Elk, Wyo., for the year ending Sept. 30, 1918.

Month.

June 13-30. ............................... .... .......

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

Discharge in second-feet.

Maximum.

715 

298 

89 

53

Minimum.

314

92 

58 

48

Mean.

540 

163 

72.2 

51.1

Run-off in 

acre-feet.

19,300 

10,000 

4,440 

3,040

36,800

SPRING CREEK NEAR TETON, WYO.

LOCATION. InNE. \ sec. 24, T. 43 N., R. 116 W.,200 yards above mouth of creek and 

5 miles northeast of Teton post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 16, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank; read only when station was visited by engineer.

DISCHARGE MEASUREMENTS. Made by wading.

CHANNEL AND CONTROL. Bed composed of loose gravel. Control formed by gravel 

riffle; shifting.

EXTREMES OP DISCHARGE. Data too few.

ICE. Record discontinued during winter.

DIVERSIONS. None.

REGULATIO N . None.
SNAKE RIVER BASIN. 35

ACCURACY. Stage-discharge relation practically permament. Eating curve well 

defined. Gage read only when visited by engineer. Daily discharge ascertained 

by applying daily gage height to rating table and interpolating for days of no 

gage height. Eecords fair, chiefly because of infrequent gage readings.

Discharge measurements of Spring Creek near Teton, Wyo., during the year ending Sept. 30 f

1918.

Date.

Oct. 7

July 1

26

Made by 

T T> TtfowrAll

.....do....:............

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

Gage 

height.

Feet. 

1.38

1.42

1.43

1.41

Discharge.

Sec.-ft. 

23.1

29.4

32.3

27.5 !

Date.

Aug. 12

29

22

Made by 

T TJ XTAOTfill

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

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

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

Gage 

height.

Feet. 

1.41

1.39

1.38

1.35

Discharge.

Sec.-ft. 

29.3;

26.4

26.0

23.2

Daily discharge, in second-feet, of Spring Creek near Teton, Wyo., for the year ending Sept.

30, 1918.

Day.

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

2...............

3...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

June.

30

30

30

30

30

30

30

30

July.

31

31

31

31

30

30

30

30

30

30

30

30

30

30

30

Aug.

29

29

29

29

29

29

29

29

29

29

90

29

9O

29

29

Sept.

26

26

26

26

26

* 26

26

26 26

O£

25

25

25

25

25

Day.

16...............

17...............

18...............

19

20...............

21...............

22...............

23...............

24...............

26...............

27...............

28...............

29...............

on

01

June.

30

30

31

31

31

31

31

31

31

31

31

31

31

31

31

July.

30

30

29

29

29

29

29

29

29

29

29

29

29

29

29

29

Aug.

29

28

28

28

28

28

28

28

28

28

27

27

27

27

27

26

Sept.

24

' 24

24

24

24

24

23

23

23

NOTE. Discharge interpolated June 9-26, 28-30; July 2-8,10-25, July 27-Aug. 11, Aug. 13r2l, 23-28, 30, 

Sept. 1-8,10-21; estimated Sept. 24-30. Braced figure shows mean discharge for period indicated.

Monthly discharge of Spring Creek near Teton, Wyo., for the year ending Sept. 30, 1918.

Month.

June 8-30. .............................................

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

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

Discharge in second-feet.

Maximum.

31 

31

29 

26

Minimum.

30 

29 

26 

23

Mean.

30.6 

29.7 

28.3 

24.5

Run-off in

acre-feet.

1,400 

1,830 

1,740 

1,460

6,430

COTTONWOOB CREEK NEAR TETON, WYO.

LOCATION. In SE. { sec. 14, T. 43 N., E. 116 W., \\ miles above mouth of creek and 

5 miles northeast of Teton post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 16, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on left bank; read by 0. S. TTorel. Gage used during 1917 was 

vertical staff on right bank one-eighth mile above mouth of creek.
36 SURFACE WATER SUPPLY, 1918, PART XII B.

DISCHARGE MEASUREMENTS. Made by wading or from "cable.

CHANNEL AND CONTROL. Bed composed of sand and gravel. Control of coarse

gravel; apparently permanent. 

EXTREMES OF DISCHARGE. Maximum stage recorded, 4.5 feet June 26 (discharge,

1,180 second-feet); a higher stage is reported to have occurred on June 16-18

(discharge not determined). Minimum stage, 2.18 feet at 7 p. m. September 30

(discharge, 40 second-feet).

1917-1918: Maximum and minimum stages recorded in 1918. 

TCE. Observations discontinued during -winter. 

DIVERSIONS. None within 3 miles above or below gage. 

REGULATION. No artificial regulation; stream is outlet of Jenny and Taggart lakes

and flow is therefore fairly regular. 

ACCURACY. Stage-discharge relation considered permanent. Bating curve well

defined. Gage read to half-tenths twice daily until September 1 and thereafter

to hundredths twice daily. Daily discharge ascertained by applying mean daily

gage height to rating table. Records good.

Discharge measurements of Cottonwood Creek near Teton, Wyo., during the year ending

Sept. SO, 1918.

Date.

Oct. 7

27

July 1

26

Made by 

T.R. Newell..........

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

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

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

Gage 

height.

Feel.

1 64

3.86

3 or;

Discharge.

Sec.-ft. 40 4

435

1,020

637

90S

Date.

29

22

Made by 

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

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

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

Gage

Feel. 

2.96

2.50

2.26

Discharge.

Sec.-ft. 

180

66.8

44.7

Daily discharge, in second-feet, of Cottonwood Creek near Teton, Wyo., for the year ending

Sept. SO, 1918.

Day.

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

2................

3................

4.. ..............

6................

7................

8................

9................

10. ...............

U................

12................

13................

14................

15. ...............

June.

435

1,110

July.

651

613

600

588

588

570

570

551

527

J.QO

510

Aug.

241

296

000

313

010

284

9=11

232

165

165

165

Sept.

15

87

83

77

6Q

87

67

70

67

67

65

CO

61

61

Day.

16...............

17...............

1ft

1Q

20 ..............

01

oo

23...............

24...............

25...............

27 ..............

f)Q

29...............

OA

31...............

June.

1,180

1,050

832

700

July.

493

481

481

481

453

453

425

453

372

317

290

275

254

232

254

Aug.

165

176

158

158

158

143

143

123

108

103

103

103

103

103

103

101

Sept.

60

60

55

51

47

46

45

45

44

43

42

42

41

41

40

NOTE. Discharge estimated July 27. 

Monthly discharge of Cottonwood Creek near Teton, Wyo., for the year ending Sept. SO, 1918.

Month.

June 26-30............................... . ......

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

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

Discharge in second-feet.

Maximum.

1,180 

651 

332 

95

Minimum.

700 

232 

101 

40

Mean.

932 

473 

179 

59.3

Run-off in 

aere-fect.

9,240 

29,100 

11,000 

3,530

52,900
SNAKE RIVER BASIN. 37

SPRING CREEK NEAR ZENITH, WYO.

LOCATION. In NE. i sec. 32, T. 42 N., R. 116 W., 200 feet above mouth of creek and 

half a mile west of Zenith post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 24, 1917, to September 30, 1918, when station was discontinued.

GAGE. Reference stake on left bank, a short distance below forks of creek; read 

when station was visited by engineer. During 1917 reference stake was fastened 

to tree on right bank, at about same location; relation between two gages not 

determined.

DISCHARGE MEASUREMENTS. Made by wading in several channels near gage.

CHANNEL AND CONTROL. Bed composed of gravel and sand. Control formed by 

series of rapids; shifting. Several channels, number varying with stage.

EXTREMES OF DISCHARGE. Data too few.

ICE. Records discontinued during winter.

DIVERSIONS. None.

REGULATION. Flow regulated by springs, swamps, and seepage from irrigation ditches 

above, which divert from Gros Ventre River.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined. Gage read only when station was visited by engineer. Daily discharge 

ascertained by applying daily gage height to rating table, using actual measurements, and interpolating for days of no gage height. Records fair.

Discharge measurements of Spring Creek near Zenith, Wyo., during the year ending Sept.

30, 1918.

[Made by T. R. Newell.]

Date.

June 22 .......

11........

Gage 

height.

Feet. 

1.12

.90

1.69

Discharge.

Sec.-ft. 

a 33. 2

35.5

Date.

i 

July 27........

Aug. 13........

28........

Gage 

height.

Feet. 

2.05

1.67

1.58

Discharge.

Sec.-ft. 

680.2

C OJ> 1

24.3

Date.

Sept. 14........

26........

Gage 

height.

Feet. 

1.57

Discharge.

Sec.-ft. 

21.7

18.2

o Flow measured in only two channels, third channel submerged by water from Snake River. 

* Includes 46.2 second-feet from Snake River. 

« Includes 8.6 second-feet from Snake River.

Daily discharge, in second-feet, of Spring Creek near Zenith, Wyo., for the year ending

Sept. 30, 1918.

Day.

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

i! ..............

3...............

4...............

6. ..............

7...............

8...............

9...............

10......... .....

11...............

12...............

13..............

14...............

15..............

June. July.

49

40

40

on

38

38

77

37

36

OC

34

74

OJ

34

Aug.

01

31

OA

30

29

29

28

9S

27

97

26

26

OK

oc

25

Sept.

00

23

OQ

23

00

23

23

00

oo

00

23

00

23

99

91

Day.

16.......:.......

17...............

1 R

19...............

20...............

21 ...............

22...............

OO

24...............

OS

26. ....... .......

27...............

OQ

OQ

on

31...............

June.

47

46

46

45

45

44

JO

rfO

42

July.

34

33

33

33

33

33

34

34

34

0,1

34

34

00

33

32

00

Aug.

25

25

25

25

25

25

25

25

25

24

f)A

f)A

f)A

23

23

23

Sept.

21

21

21

20

20

20

19

19

19

19

18

18

18

18

18

NOTE. Used actual measurements corrected for inflow from Snake River, July 27 and Aug. 13. Used 

actual measurement direct, Aug. 28 and Sept. 14. Estimated June 22 and July -10, on basis of partial 

measurements. Estimated Sept. 28-30. Interpolated because of lack of gage heights for all other periods.
38 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Spring Creek near Zenith, Wyo.,/or the year ending Sept. SO, 1918-

Month.

June 22-30. ............................................

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

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

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

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

Discharge in second-feet.

Maximum.

47 

42 

31 

23

Minimum, i Mean.

!

42 

32 

23 

18

44.6 

35.2 

26.0 

21.0

Run-off in

acre-feet.

7% 

2,160 

1.600 

1,250

5,810

GROS VENTRE RIVER AT KELLY, WYO.

LOCATION. At corner of sees. 1, 2, 11, and 12, T. 42 N., R. 115 W., in Kelly, Lincoln

County, 300 feet below highway bridge on main road from Jackson to Moran.

Nearest tributary, Turpin Creek, enters 2 miles upstream. 

DRAINAGE AREA. 725 square miles (measured on topographic map). 

RECORDS AVAILABLE. June 16 to September 30.1918, when station was discontinued^ 

GAGE. Vertical staff on left bank; read by W. Kelly and J. Gamp. 

DISCHARGE MEASUREMENTS. Made by wading or from cable 200 feet above gage. 

CHANNEL AND CONTROL. Bed composed of gravel and boulders. Control of same

material; permanent. 

EXTREMES OP DISCHARGE. Maximum stage recorded, 9.95 feet at 6 p. m. June 16

(discharge, 6,220 second-feet); minimum stage, 3.31 feet at 6 p. m. September

24-27, 29 and 30 (discharge, 245 second-feet). 

ICE. No record. 

DIVERSIONS. Canals above and below gage divert about 200 second-feet during

irrigation season.

REGULATION. None, except that due to diversions. 

ACCURACY. Stage-discharge relation practically permanent. Rating curve well

denned. Gage read to quarter-tenths once daily. Daily discharge ascertained

by applying daily gage height to rating table. Records good.

Discharge measurements of Gros Ventre River at Kelly, Wyo., during the year ending

Sept. 30, 1918.

Date.

21

25 July 13

OQ

Made by 

T R Newell

...'..do.......'..........

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

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

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

height.

Feet.

a QP*

9.41

7.76

Discharge.

Sec.-ft. 

a6,960

5,620

3,570

C-l C

Date.

Aug. 15

26

31

28

Made by 

T. R. Newell..........

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

Newell and Baldwin. . .

T. R. Newell..........

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

Gage 

height.

Feet.

3.79

3.50

3.42

3.50

3.36

Discharge.

Sec.-ft. 

398

298

273

304

256

a Surface velocity by floats; coefficient of 0.90 used to reduce to mean velocity.
SNAKE RIVER BASIN. 39

Daily discharge, in second-feet, of Gros Venire River at Kelly, Wyo.,for the year ending

Sept. 30, 1918.

Day.

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

2..............

3..............

4...............

5...............

6...............

8. ........ ....

9..............

10...............

11...............

12...............

13...............

14..............

15...............

June. July.

1,600

1,600

1,520

1,600

1,440

1,400

1,400

1,400

1,280

1,130

1,140

1,200

1,520

Aug.

510

510

498

486

455

446

414

406

398

387

376

369

362

351

398

Sept.

278

272

272

272

269

272

287

302

334

309

296

278

278

287

299

Day.

16. ..............

17...............

18...............

19...............

20...............

21 ...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31.........'......

June.

6,220

5,760

5,290

4,830.

4,410

5,590

4,530

4,950

4,190

3,630

3,040

3,140

2,570

1,860

1,680

July.

1,360

1,200

1,040

971

900

831

702

642

603

586

560

534

524

520

515

510

Aug.

384

369

369

341

328

318

318

318

309

309

299

296

296

296

287

278

Sept.

272

272

272

272

266

258

258

250

245

2!5

245

245

256

245

245

NOTE. Discharge interpolated because of lack of gage heights, June 17,18, July 30, Aug. 1, 3, and 16/ 

Monthly discharge of Gros Venire River at Kelly, Wyo.,for the year ending Sept. 30, 1918.

Month.

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

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

Discharge in second -feet.

Maximum.

6,220 

1,600 

510 

334

Minimum.

1,680 

510 

278 

245

Mean.

4,110 

1,070 

370 

272

Run- off in 

acre-feet.

122,000 

65,800 

22,SOO 

16,200

227,000

GROS VENTRE RIVER AT ZENITH. WYO.

LOCATION. In NW. \ sec. 4, T. 41 N., R. 116 W., three-fourths mile above mouth of 

river and three-fourths mile south of Zenith post office, Lincoln County.

DRAINAGE AREA. 758 square miles (measured on topographic map).

RECORDS AVAILABLE. July 13, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank; read by fl. Barber and Jo Deyo. Gage used 

during 1917 was on right bank one-fourth mile below present location; relation 

between gages not determined.

DISCHARGE MEASUREMENTS. Made by wading in several channels below gage.

 HANNKL AND CONTROL. Bed composed of gravel and small boulders; practically 

permanent. No well-defined control.

EXTREMES OF DISCHARGE. Maximum stage recorded, 2.9 feet at 7 a. m. July 15 

(discharge, 934 second-feet); minimum stage, 1.35 feet at 6.20 p. m. September 6 

(discharge, 121 second-feet).

1917-1918: Maximum stage recorded, 3.30 feet on 1917 gage at 5.30 p. in. 

July 13 (discharge, 1,800 second-feet); minimum stage recorded in 1918.

ICE. Records discontinued during winter.

DIVERSIONS. Canals above gage divert about 200 second-feet during irrigation 

season.

REGULATION. None, except that caused by change of headgates on diversions.

ACCURACY. Stage-discharge relation practically permanent. Rating curve well 

defined below 440 second-feet. Gage read to quarter-tenths twice daily prior 

to July 31 and once daily thereafter. .Daily discharge ascertained by applying 

daily gage height to rating table. Records good.
40 SURFACE WATER SUPPLY, 1918, PART XII B.

Discharge measurements of Gros Venire River at Zenith, Wyo., during the year ending

Sept. 30, 1918.

[Made by T. R. Newell.]

Date.

July 28. ........

Gage 

height.

Feet. 

1.97

1.77

Discharge.

Sec.-ft.

298

Date. Gage 

height.

Feet.

1.47

Discharge.

Sec.-ft. 

215

171

Date.

27.........

Gage 

height.

Feet.

1.44

Discharge.

Sec.-ft.

Daily discharge, in second-feet, of Gros Venire River at Zenith, Wyo., for the year endi

Sept. 30, 1918.

Day.

I.'.........

2

3..........

4.. ........

6..........

7..........

8..........

9..........

10..........

July. Aug.

340

327

314

290

300

267

222

222

200

179

Sept.

179

159

159

179

139

159

222

200

Day.

11........ .

13..........

14........ .

15..........

17..........

18..........

19..........

20..........

July.

824

740

699

849

897

782

705

693

635

624

Aug.

222

200

179

200

179

222

200

222

200

179

Sept.

200

179

179

179

183

179

179

159

159

159

Day.

21..........

22..........

23..........

24..........

25..........

26..........

27..........

28..........

29..........

30..........

31..........

July.

578

533

522

489

467

440

414

394

368

353

353

Aug.

196

244

179

179

139

179

171

159

139

179

163

Sept.

13»

155

159

159

159

159

151

139

139

139

NOTE. Gage not read Aug. 1 and 2; discharge interpolated.

Monthly discharge of Gros Ventre River at Zenith, Wyo., for the year ending Sept. 30, 1918.

.

Discharge in second-lee t.

July 11-31. . ............................................

Maximum.

897

340

222

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

Minimum.

353

139

121

Mean.

589

213

164

Run-oflin

acre-feet.

24,500

13,100

9,760

47,400

SPRING CREEK AT WEST GROS VENTRE BUTTE, WYO.

LOCATION. In NE. \ sec. 5, T. 41 N., R. 116 W., at West Gros Ventre Butte, Lincoln 

County, half a mile above mouth of creek.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 24, 1917, to September 30, 1918, when station was discontinued. Discharge measurements only, prior to June 19. 1918.

GAGE, Vertical staff fastened to tree on right bank; read when station was visited by 

engineer.

DISCHARGE MEASUREMENTS. Made by wading 300 feet below gage.

CHANNEL AND CONTROL. Bed composed of sand, gravel, and small boulders; shifting. Control affected by growth of aquatic plants.

EXTREMES OF DISCHARGE. Data too few.

ICE. No record.

DIVERSIONS. None.

REGULATION . None.

ACCURACY. Stage-discharge relation not permanent. Rating curves poorly defined. 

Gage read only when visited by engineer. Daily discharge ascertained by applying daily gage height to rating table, using actual measurements, and interpolating for days of no gage height. Records poor.
SNAKE EIVEE BASIN. 41

Discharge measurements of Spring Creek at West Gros Venire Butte, Wyo., during the

year ending Sept. 30, 1918.

[Made by T. B. Newell.]

Date.

July 13... ......

29.........

Gage 

height.

Feet. 

1.87

1.81

1.71

Discharge.

Sec.-ft. 

33.6

29.7

23.2

Date.

A no- 14

27.........

Gage 

height.

Feet. 

1.70

1.68

Discharge. 

Sec.-ft. 

21.0

20.1

Date.

Sept. 14........

27........

Gage 

height.

Feet. 

1.67

1.65

Discharge .

Sec.-ft. 

19.7

19.3

Daily discharge, in second-feet, of Spring Creek at West Gros Venire Butte, Wyo., for the

year ending Sept. 30, 1918.

Day.

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

2...............

3...............

4. ..............

5...............

6...............

7...............

8...............

9...............

10...............

11 ...............

12...............

13 ...............

14...............

15...............

June. July.

33

33

33

33

33

33

33

33

33

33

32

31

30

30

30

Aug.

23

22

22

22

22

22

22

22

22

21

21

21

21

21

Sept.

20

20

20

20

20

20

20

20

20

20

20

20

Day.

16. ..............

17...............

19...............

20...............

21...............

22...............

23

24...............

25...............

26...............

27...............

28...............

29...............

31...............

June.

34

33

33

33

33

33

33

33

33

33

33

33

July.

29

29

28

28

27

27

26 ~26

26

25

25

24

24

23

23

23

Aug.

21

21

21

21

21

21

21

21

20

20

20

20

20

20

20

20

Sept.

20

20

20

20

20

19

19

19

19

19

19

19

19

19

19

NOTE. Used actual measurements June 19, July 13,29, Aug. 14, 27, Sept. 14 and 27. Discharge interpolated because of lack of gage heights, June 20 to July 10, July 12, 14-16,18-28, 30, 31, Aug. 1-4, 6-13,16-20, 

22-26, 28-31, Sept. 1-13,15-26, and 28-30.

Monthly discharge of Spring Creek at West Gros Ventre Butte, Wyo., for the year ending

Sept. 30, 1918.

Discharge in second-feet.

June 19-30 .............................................

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

Maximum.

34

33

23

20

Minimum.

33

23

20

19

Mean.

33.1

28.9

21.1

19.7

Run-off in

acre-feet.

788

1,780

1,300

1,170

5,040

SPRING CREEK AT ZENITH, WYO.

LOCATION. In SE. } sec. 32, T. 42 N., R. 116 W., a quarter of a mile above mouth of 

creek and three-quarters of a mile southwest of Zenith post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 2-1, 1917, to September 30, 1018, when station was discontinued.

GAGE. Reference stake' on right bank; read when station was visited by engineer. 

Relerence stake used during 1917 was at practically same location; relation 

between gages not determined.

DISCHARGE MEASUREMENTS. Made by wading.

CHANNEL AND CONTROL. Bed composed of gravel and sand, well covered with mos«; 

shifting. No well-defined control.
42 SURFACE WATER SUPPLY, 1918, PART XII B.

EXTREMES OP DISCHARGE. Data too few.

ICE. Records discontinued during winter.

DIVERSIONS. -None.

RECJTJ! ATION. Flow regulated by springs and swamps, and is fairly uniform.

ACCURACY. Stage-discharge relation not permanent. Rating curve poorly denned. 

Gage read only occasionally by engineer. Daily discharge ascertained by applying daily gage height to rating table, using actual measurements, and interpolating for days of no gage height, except for September 28-30, for which it was 

estimated. Records poor.

Discharge measurements of Spring Creek at Zenith, Wyo., during the year ending Sept.

30, 1918.

[Made by T. K. Newell.]

Uate' jhdghl

Feet. 

June 22......... 1.85

July 11.........I 1.56

28.........: 1.61

Discharge.

Sec.-ft. 

48.3

26.8

24.8

Date.

Aug. 13. ........

Gage 

height.

Feet. 

1.72

1.66

Discharge.

Sec.-ft. 

21.4

18.7

Date.

Sept. 14........

27........

Gage 

height.

Feet. 

1.68

1.60

Discharge.

Sec.-ft. 

17.1

15.9

Daily discharge, in second-feet, of Spring Creel' at Zenith, Wyo., for the year ending Sept.

,,' 30. 1918.

Day.

2. ..............

3...............

6...............

9...... --...... .

10...............

11...............

12...............

13...............

14...............

June. July.

38

37

36

34

01

29

28

27

97

28

00

Aug.

0*3

23

00

99

22

21

Sept.

18

18

18

10

18

18

1C

18

IS

1 0

17

17

Day.

IS...............

19

20...............

Zl. ..............

23 ...............

Z\. ..............

25...............

26...............

27............. ..

28...............

29...............

36......--......- q-i

June.

48

47

46

45

44

42

41

40

39

July.

28

28

27

27

27

27

27

26

26

26

26

26

25

24

24

Aug.

20

20

20

20

20

19

19

19

19

19

19

19

19

18

18

18

Sept.

17

17

17

17

16

16

16

16

16

16

lt>

16

16

16

16

NOTE. Used actual measurements June 22, July 11, 28, and Sept. 14. Estimated Sept. 28-30,16 secondfeet. Discharge interpolated June 23 to July 10, July 12-16, 18-27, 28-31, Aug. 1-4, 6-12,16-20, 22-27, 29-31, 

Sept. 1-13, and 15-25.

Monthly discharge of Spring Creek at Zenith, Wyo., for the year ending Sept. 30, 1918.

Month.

June 22-30.... . .........................................

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

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

Discharge in second-feet.

Maximum.

' 48 

38 

24 

18

Minimum.

39 

24 

18 

16

Mean.

43.6 

28.6 

20.5 

17.1

Run-off in 

acre-feet.

778 

1,760 

1,260 

1,020

4,820
SNAKE RIVER BASIN. 43

FISH CREEK NEAR WILSON, WYO.

LOCATION. About sec. 27, T. 41 N., R. 117 W. (unsurveyed), 300 feet above mouth 

of creek and 4 miles southeast of Wilson, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 20, 1917, to September 30, 1918, when station was discontinued.

GAGE. Stevens continuous water-stage recorder on right bank, at same location and 

datum as vertical staff used during 1917; inspected by T. R. Newell.

DISCHARGE MEASUREMENTS. Made by wading in two channels above gage.

CHANNEL AND CONTROL. Bed covered by heavy growth of moss. Control formed 

by backwater from small irrigating dam at mouth of creek; shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year and for period of 

record, 2.13 feet July 3 (discharge, 622 second-feet); minimum discharge, 134 aeeond-feet September 25, at stage of 1.07 feet.

ICE. Station discontinued during winter.

DIVERSIONS. Several small diversions during irrigation season.

REGULATION . None.

ACCURACY. Stage-discharge relation not permanent. Standard rating curve fairly 

well defined. Operation of recorder satisfactory. Daily discharge ascertained 

by applying daily gage height to rating table; shifting-control method used August 

19 to September 30. Records prior to August 19 good, after that date fair.

Discharge measurements of Fish Creek near Wilson, Wyo., during the year ending Sept.

30, 1918. 

[Made by T. R. Newell.]

Date.

Julys..........

15..........

Gage 

height.

Feet.

1 QA

2.14

1.69

Discharge.

See.-ft. 

463

637

451

Date.

Aug. 1.... ......

18..........

height.

Feet. 

1.08

.90

.92

Discharge.

See.-ft.

OKO

194

156

Date.

Sept. 17........

30........

Gage 

height.

Feet. 

1.00

1.15

Discharge.

8ee.-ft. 

145

135

Daily discharge, in second-feet, of Fish Creek near Wilson, Wyo., for the year ending Sept.

30, 1918.

Day.

1. .........

2..........

3..........

4..........

5..........

6..........

8..........

9..........

10..........

July.

690

650

622

611

569

Kfift

546

520

WQ

491

Aug.

246

240

243

240

000

ooo

OOJ.

221

91 £

207

Sept.

151

154 I'll

149

146

151

151

156 tKA

14.Q

Day.

11..........

12..........

13..........

15..........

16..........

17..........

18..........

19

20..........

July.

472

443

117

*fV7

439

418

396

OQO

368

Aug.

204

195

192

198

204

201

198

195

1QQ

1Q9

Sept.

146

146

144

146

144

144

142

140

140

Day.

21..........

22..........

23..........

24..........

OK

26..........

97

28..........

on

°/l

31..........

July.

351

337

323

317

307

290

281

271

243

249

249

Au^.

190

187

182

176

171

173

168

166

161

158

151

Sept.

140

140

140

138

134

136

136

138

136

138

NOTE. Discharge estimated July 1 and 2. 

Monthly discharge of Fish Creek near Wilson, Wyo., for the year ending Sept. 30, 1918.

Month.

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

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

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

Discharge in second-feet.

Maximum.

690 

246

156

Minimum.

243 

151 

134

Mean.

429 

199 

144

Run-oft in 

acre-feet.

26,400 

12,200 

8,570

47,200

823T4 22 WSP 483-
44 SURFACE WATER SUPPLY, 1918, PART XII B.

MOSQUITO CREEK NEAR WILSON, WYO.

LOCATION. About sec. 15, T. 40 N., R. 117 W., near mouth of creek and 5 miles 

south of Wilson, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 20, 1917, to September 30, 1918, when station was discontinued.

GAGE. Reference point on left bank, at same location as vertical staff used during 

1917; read when station was visited by engineer.

DISCHARGE MEASUREMENTS. Made by wading above gage.

CHANNEL AND CONTROL. Bed composed of small boulders. Control formed by riffle 

just below gage; shifting.

EXTREMES OP DISCHARGE. Maximum stage recorded during year and for period of 

record, 3.55 feet June 6 (discharge, 308 second-feet); minimum stage, 0.81 foot 

September 17 (discharge. 8 second-feet). A lower discharge may have occurred 

on a day of no record.

ICE. Records discontinued during winter.

DIVERSIONS. Small diversion above during irrigation season.

REGULATION. None except that due to diversion.

ACCURACY. Stage-discharge relation not permanent. Rating curve well defined. 

Gage read only occasionally by engineer. Daily discharge ascertained by applying daily gage height to rating table; shifting-control method used July 4-14; interpolated for days of no gage height. Records fair.

Discharge measurements of Mosquito Creek near Wilson, Wyo., during the year ending

Sept. 30, 1918.

[Made by T. R. Newell.]

Date.

July 3.........

15.........

Gage 

height.

Feet. 

3.55

1.54

1.30

Discharge.

Sec.-ft. 

308

66.7

35.6

Date.

Aug. 1.........

18.........

Gage 

height.

Feet. 

1.02

.95

Discharge.

Sec.-ft. 

17.7

14.1

Date.

17........

Gage 

height.

Feet. 

0.86

.81

Discharge.

Sec.-ft. 

9.9

8.7

Daily discharge, in second-feet, of Mosquito Creek near Wilson, Wyo., for the year ending

Kept. 30, 1918.

Day.

1..........

2..........

3..........

4..........

5..........

6. .........

7..........

g

10..........

July.

78

72

67

62

TO

56

52

49

47

45

Aug.

18

17

17

17

17

17

17

17

17

17

Sept.

11

11

10

10

10

9

Day.

11..........

12. .........

13. .........

15..........

16. .........

17..........

i o

19

20. .........

July.

43

42

40

38

36

35

34

QQ

32

31

Aug.

17

17

17

17

17

17

16

1 q

13

Sept.

9

9

g

9

9

9

8

9

g

9

Day.

21..........

22. .........

23..........

24..........

25. .........

26..........

27..........

28..........

29..........

30..........

31

July.

30

29

28

26

25 >

24

23

22

21

20

19

Aug.

13

13

13

12

12

12

12

12

12

11

11

Sept.

9

9

9

10

10

10

10

10

10

11

NOTE. Discharge estimated July 1 and 2. Discharge interpolated July 6, 7, 9-14, 16-31, Aug. 2-16, 

19-31, Sept. 1-3, 5, 6, 9-16, and 18-29.
SNAKE RIVER BASIN. 45

Monthly discharge of Mosquito Creek near Wilson, Wyo.,for the year ending Sept. 30,1918.

Month.

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

Discharge in second-feet.

Maximum.

78 

18 

11

Minimum.

19 

11 

9

Mean.

39.3 

14.9 

9.60

Run-off in 

acre-feet.

2.420 

916 

571

3,910

BIG SPRING CREEK NEAR CHENEY, WYO.

LOCATION. In sec. 24, T. 40 N., R. 117 W., 1 mile above mouth of creek and 2 miles 

west of Cheney post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. August 16, 1917, to September 30, 1918, when station was 

discontinued. Discharge measurements only, prior to June 18, 1918.

GAGE. Vertical staff on left bank, at same site and datum as reference point used 

during 1917; read by Mrs. F. C. Karns.

DISCHARGE MEASUREMENTS. Made by wading near gage.

CHANNEL AND CONTROL. Bed composed of gravel; shifting. Control seriously affected 

by growth of moss.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 2.30 feet June 25 

(discharge, 108 second-feet); minimum stage, 1.96 feet August 2 (measured discharge, 32 second-feet).

ICE. No record.

DIVERSIONS. Several small diversions above, during irrigation season.

REGULATION. Flow regulated by springs and waste water from irrigation above.

ACCURACY. Stage-discharge relation not permanent. Standard rating curve well denned. Gage read to hundredths twice daily. Daily discharge ascertained by 

applying mean daily gage height to rating table and interpolating for days of no 

gage height. Shifting-control method used June 19 to July 4. Records fair to 

July 5, good thereafter.

Discharge measurements of Big Spring Creek near Cheney, Wyo., during the year ending

Sept. SO, 1918.

[Made by T. R. Newell-1

Date.

June 18.........

July 6. ........

Aug. 2.........

Gage 

height.

Feet. 

1.94

2.00

Discharge.

Sec.-ft. 

41.0

35.9

31.6

Date.

20..........

Gage 

height.

Feet. 2nd

2.12

Discharge.

Sec.-ft. 

42 4

Date.

18.........

Gage 

height.

Feet.

2 ft7

9 Af\

Discharge.

Sec.-ft.

en A
46 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Big Spring Creek near Cheney, Wyo.,for the year ending

Sept. 30, 1918.

Day.

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

2................

3...............

4...............

5...............

6................

7...............

8...............

9..............

10 ...............

1J. ..............

12...............

13...............

14...............

15...............

June. July.

39

39

07

17

37

37

Q7

37

37

07

07

37

46

KA

54

Aug.

37

3307

40

37

37

07

37

37

37

Q7

37

37

37

37

Sept.

47

49

49

49

47

47

54

54

c4.

K.A

54

54

KA

52

l>ay.

16...............

17...............

18...............

19...............

20 ...............

21 ...............

22...............

23 ...............

24...............

25...............

26. ..............

27...............

28...............

29 ...............

30...............

^1

June.

42

42

47

49

68

76

92

108

96

83

62

42

42

July.

58

64

54

54

54

46

46

46

46

51

54

37

37

37

37

37

Aug.

37

37

37

54

56

54

54

54

54

54

54

54

54

54

46

46

Sept.

52

52

46

46

46

46

49

49

49

49

46

45

45

44

44

NOTE. Discharge interpolated Sept. 27 and 28.

Monthly discharge of Big Spring Creek near Cheney, Wyo., for the year ending Sept. SO,

1918.

Month.

June 18-30. .............................................

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

Discharge in second-feet.

Maximum.

108 

64 

56 

54

Minimum.

42 

37 

33 

44

Mean.

65.3 

43.9 

43.6 

49.2

Run- off in 

acre-feet.

1,680 

2,700 

2,680 

2,930

9,990

FLAT CREEK NEAR CHENEY, WYO.

LOCATION. In NE. ^ sec. 29, T. 40 N., R. 116 W., 2 miles above mouth of creek and 1 

mile south of Cheney post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 7, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on left bank; read by B. W. Clevenger and Elsie Tanner.

DISCHARGE MEASUREMENTS. Made by wading above gage.

CHANNEL AND CONTROL. Bed composed of gravel; practically permanent. No welldefined control.

EXTREMES OF DISCHARGE. Maximum stage recorded during year and for period of 

record, 1.78 feet at 8 a. m. June 24 (discharge, 420 second-feet); minimum stage, 

0.70 foot September 5, 6, and 12 (discharge, 101 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. No diversions immediately above or below gage, but valley above ia 

irrigated by numerous canals; amount diverted not known.

REGULATION. None except that due to diversions.

ACCURACY. Stage-discharge relation practically permanent. Rating curve well 

defined. Gage read to hundredths once daily. Daily discharge ascertained by 

applying daily gage height to rating table and interpolating for days of no gage 

height. Records good.
SNAKE EIVEB BASIN. 47

Discharge measurements of Flat Creek near-Cheney, Wyo., during the year ending Sept. 30,

1918.

[Made by T. R. Newell.]

Date.

June 18........

July 7. .......

16........

Gage 

height.

Feet. 

1.45

Q9

Discharge.

Sec.-fl. 

316

188

163

Date.

Aug. 3........

16........

20........

Gage 

height.

Feet.

0 7Q

.91

.78

Discharge.

Sec.-ft.

150

Date.

19........

29........

Gage 

height.

Feet. 

0.70

.72

.74

Discharge.

Sec.-ft. 

102

103

112

Daily discharge, in second-feet, of Flat Creek near Cheney, Wyo., for the year ending Sept.

30, 1918,

Day.

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14. ..............

15...............

June. July.

261

243

202

188

185

188

188

174

165

160

149

146

151

174

165

Aug.

124

124

132

132

132

132

146

154

165

174

174

174

165

Sept.

124

119

106

101

101

104

106

104

104

104

101

106

130

Day.

16. ..............

17...............

18...............

19...............

20 ...............

21 ...............

22...............

23....'...........

24...............

25...............

26...............

27...............

28...............

29...............

30. ..............

31...............

June.

316

337

343

353

368

416

420

384

381

306

316

291

282

July.

160

160

154

157

146

157

162

160

157

154

157

160

151

157

143

137

Aug.

162

- 160

157

157

122

124

130

132

146

154

151

146

151

149

132

138

Sept.

130

127

124

106

106

109

106

130

132

132

130

106

106

109

106

NOTE. Discharge interpolated Aug. 1, 5-7, an 3 17. 

Monthly discharge of Flat Creek near Cheney, Wyo., for the year ending Sept. 30, 1918.

Month.

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

The period

Discharge in second-feet.

Maximum.

420 

261 

174 

132

i

Minimum.

282 

137 

122 

101

Mean.

347 

168 

145 

113

Run-off in 

acre-feet.

8,950 

10,300 

8,920 

6,720

34,900

HORSE CREEK NEAR CHENEY, WTO.

LOCATION. In NW. £ SE. £ sec. 14, T. 39 N., R. 116 W., 300 feet above bridge on road

from Hoback to Jackson, a quarter of a mile above mouth, and 6 miles southeast

of Cheney post office, Lincoln County. 

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 8 to September 30, 1918, when station was discontinued. 

GAGE. Vertical staff on right bank at same location and at a datum 1.14 feet higher

than reference point used in 1917; read when station was visited by engineer. 

DISCHARGE MEASUREMENTS. Made by wading above gage. 

CHANNEL AND CONTROL. Control for low stage composed of loose gravel; for high

stages control formed by old log dam, short distance below; slightly shifting.
48 SURFACE WATER SUPPLY, 1918, PART XII B.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.95 feet July 20 

(discharge, 39 second-feet); minimum stage, 1.15 feet September 21 (discharge, 

11 second-feet). A lower discharge may have occurred on a day of no record.

1917-1918: Maximum stage recorded, 3.76 feet July 8, 1917 (discharge, 139 

second-feet); minimum stage in 1918.

ICE. Records discontinued during winter.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent. Rating curve fairly 

well defined. Gage read only occasionally by engineer. Daily discharge ascertained by applying daily gage height to rating table and interpolating for days of 

no gage height. Records fair.

Discharge measurements of Horse Creek near Cheney, Wyo., during the year ending Sept.

30, 1918. 

[Made by C. W. Kief.]

Date.

July 20. ........

28.........

Gage 

height.

Feet. 

1.95

1.73

Discharge.

Sec.-ft. 

39.1

29.4

Date.

31.........

Gage 

height.

Feet. 

1 60

1.45

Discharge.

Sec.-ft. 

19.3

15.4

1 

Date.

21 .........

Gage 

height.

Feet. 

1.42

1.15

Discharge.

Sec.-ft. 

13.7

11.4

Daily discharge, in second-feet, of Horse Creek near Cheney, Wyo., for the year ending

Sept. 30, 1918.

Day.

 2.... ......

4..........

5..........

 6..........

7... .......

8..........

9.........

10..........

July. Aug.

27

26

25

25

24

24

23

23

22

21

Sept.

15

15

15

15

14

14

14

Day.

11..........

12..........

13..........

14..........

16..........

17..........

19..........

July.

' 39

Aug.

21

20

20

19

19

19

19

19

in

Sept.

14

13

13

13

13

12

12

12

12

Day.

21..........

22..........

23..........

24..........

26..........

27. .........

28..........

29..........

30..........

31..........

July. Aug.

19

18

18

18

17

17

17

16

16

16

15

Sept.

11

11

11

11

11

11

11

11

11

11

NOTE. Used actual measurements, July 20, 28, Aug. 14, 31, Sept. 11, and 21. Discharge estimated Sept. 

22-30. Discharge interpolated July 21-27, 29-31, Aug. 1-13, 15-20, 22-30, Sept. 1-10, and 12-20.

Monthly discharge of Horse Creek near Cheney, Wyo., for the year ending Sept. 30, 1918.

Month.

July 20-31 ..............................................

Discha

Maximum.

39

27

15

rge in second

Minimum.

27

15

11

-feet.

Mean.

32.4

20.0

12.7

Run-oft in

acre-feet .

771

1,230

756

2,760

HOBACK RIVER NEAR CHENEY, WYO.

LOCATION. In NW. \ NW. £ sec. 26, T. 39 N., R. 116 W., a quarter of a mile above 

mouth and 8 miles southeast of Cheney post office, Lincoln County.

DRAINAGE AREA. 572 square miles,

RECORDS AVAILABLE. July 9, 1917, to September 30, 1918, when station was discontinued.
RIVER BASIX. 49

GAGE. Vertical staff in three sections on right bank; read by Jim C. Imeson.

DISCHARGE MEASUREMENTS. Made by wading or from cable 700 feet below gage.

CHANNEL AND CONTROL. Bed composed of large boulders. Control formed by series 

of rapids just below gage; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year and for period of 

record, 13.46 feet at 9.10 a. m. June 16 (discharge, 6,160 second-feet); minimum 

stage, 5.5 feet on numerous days during September (discharge, 326 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. Practically none.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent during season. Rating curve well 

defined. Gage read to hundredths twice daily. Daily discharge ascertained by 

applying mean daily gage height to rating table. Records fair prior to July 19 

and good for remainder of year.

Discharge measurements of Hoback River near Cheney, Wyo., during the year ending Sept.

30, 1918.

[Made by C. W. Kief.]

Date.

June 22........

July 20........

28........

Gage 

height.

Feet. 

11.48

7.07

6.36

Discharge.

Sec.-ft. 

4,580

1,280

859

Date.

Aug. 14........

31........

Sept. 11........

Gage 

height.

Feet. 

5.85

5.64

5.60

Discharge.

Sec.-ft. 

490

375

369

Date.

Sept. 21 ........

Gage 

height.

Feet. 

5.49

Discharge.

Sec.-ft.

Daily discharge, in second-feet, of Hoback River near Cheney, Wyo., for the year ending

Sept. 30, 1918.

Day.

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

2...............

3...............

4...... . ......

5...............

6...............

7...............

8...............

9...............

10...............

11... ............

12...............

13...............

14...............

15...............

June.

5,720

July.

2,230

2.160

2,230

2,160

2,090

2,020

1,940

1,800

1,730

1,730

1,660

1,660

1,590

1,800

Aug.

718

718

655

655

624

594

564

535

535

535

535

535

506

506

506

Sept.

350

398

398

373

373

350

326

326

326

326

373

326

326

326

326

Day.

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29

30...............

31 ...............

June.

6,120

5,960

5,800

5,560

5,320

5,160

4,530

4,600

4,370

4,060

3,820

3,280

2,900

2,530

2,380

July.

1,590

1,450

1,380

1,310

 1,250

1,310

1,310

1,110

1,040

782

750

815

880

782

750

Aug.

506

506

506

506

506

535

506

492

479

465

451

438

424

398

398

398

Sept.

350

326

326

326

326

326

326

326

350

326

326

326

326

NOTE. Discharge interpolated Jul.v 27 and Aug. 23-27. 

Monthly discharge of Hoback River near Cheney, Wyo., for the year ending Sept. 30,1918.

Month.

June 14-30. .............................................

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

Discharge in second-feet.

Maximum. Minimum.

6,120 

2,230 

718 

398

2,380 

750 

398 

326

Mean.

4,590 

1,490 

524 

339

Run -off in 

acre-feet.

155,000 

91,600 

32,200 

20,200

299,000
50 SURFACE WATER SUPPLY, 1918, PART XII B.

FALL CREEK NEAR CHENEY, WYO.

LOCATION. About sec. 22, T. 39 N., R. 116 W. (unsurveyed), a short distance above 

mouth of creek and 8 miles south of Cheney, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 19, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank, 40 feet upstream from bridge at Sewell ranch; 

read by W. H. Sewell.

DISCHARGE MEASUREMENTS. Made by wading below gage.

CHANNEL AND CONTROL. Bed composed of hardpan; permanent. No well-defined 

control.

EXTREMES OF DISCHARGE. Maximum stage recorded during year and for period of 

record, 3.80 feet June 15 (discharge, 440 second-feet); minimum stage, 1.46 feet 

September 28-30 (discharge, 28 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. Small diversion above gage during irrigation season.

REGULATION. None except that caused by diversions during irrigation season.

ACCURACY. Stage-discharge relation practically permanent during season. Rating 

curve fairly well defined. Gage read to hundredths once daily. Daily discharge 

ascertained by applying daily gage height to rating table. Records good.

Discharge measurements of Fall Creek near Cheney, Wyo., during the year ending Sept. 30,

1918.

[Made by C. W. Kief.]

Date.

July 7.........

21.........

Gage 

height.

Feet.

1.79

Discharge.

Set.-ft.

68.5

Date.

July 30.........

Al1(7 1 ^

Gage 

height.

Feet. 

1.67

1.60

Discharge.

See:-ft.

46.1

Date.

Sept. 2........

21........

Gage 

height.

Feet. 

1.54

1.48

Discharge.

Sec.-ft. 

35.7

29.7

Daily discharge, in second-feet, of Fall Creek near Cheney, Wyo., for the year ending

Sept. SO, 1918.

Day.

3...............

7. ..............

9...............

11...............

1 9

13...............

14...............

June.

372

410

416

July.

137

132

126

123

106

106

98

90

90

90

106

QA

Aug.

48

46

52

49

45

45

d.^

4

E

Ac

45

J.C

45

Sept.

40

37

35

35

35

33

33

33

32

32

32

32

32

32

Day.

16...............

17...............

18...............

20...............

21 ...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

June.

400

410

396

380

384

370

314

323

294

256

207

193

171

148

143

July.

90

87

82

79

74

74

71

66

62

62

59

59

58

56

53

52

Aug.

48

45

45

45

44

45

45

45

45

45

45

45

45

45

45

42

Sept.

32

31

31

31

30

30

30

32

31

30

29

29

28

28

28

NOTE. Discharge interpolated June 30 and July 1.
SNAKE RIVER BASIN. 51

Monthly discharge of Fall Creek near Cheney, Wyo., for the year ending Sept. 30, 1918.

Month.

June 12-30. .............................................

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

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

Discharge in second-feet.

Maximum.

440 

137 

52 

40

Minimum.

143 

52 

42 

28

Mean.

317 

86.8 

45.7 

32.0

Run-off in 

acre-feet.

11,900 

5,340 

2,810 

1,900

22,000

DOG CREEK NEAR CHENEY, WYO.

LOCATION. About sec. 15, T. 38 N., R. 116 W. (unsurveyed), half a mile from mouth 

and 11 miles south of Cheney post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 18, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank; read when station was visited by engineer.

DISCHARGE MEASUREMENTS. Made by wading above gage.

CHANNEL AND CONTROL. Bed composed of gravel. Control formed by large boulders; somewhat shifting.

EXTREMES OF DISCHARGE. Data too few.

ICE. Records discontinued during winter.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent. Rating curve fairly well 

defined. Gage read only occasionally by engineer. Daily discharge ascertained 

by applying daily gage height to rating table; interpolated for days of no gage 

height. Records poor.

Discharge measurements of Dog Creek near Cheney, Wyo., during the year ending Sept. 30,

1918.

IMade by C. W. Kief.]

Date.

July 6.........

22. ........

Gage 

height.

Feet. 

1.58

1.38

Discharge.

Sec.-ft. 

28.5

12.7

Date.

July 31.........

Aug.16.........

Gage 

height.

Feet. 

1.30

1.28

Discharge.

Sec.-ft. 

11.6

9.3

Date.

Sept.15... ......

Gage 

height.

Feet. 

1.21

Discharge.

Sec.-ft. 

6.6

Daily discharge, in second-feet, of Dog Creek near Cheney, Wyo., for the year ending Sept.

30, 1918.

Day.

1... .......

2..........

3..........

4..........

6..........

7..........

8..........

9..........

July.

31

30

29

28

27

26

26

OC

24

OQ

Aug.

10.0

9.9

9.9

9.9

9.8

9.8

9 7

9.7

9 6

Sept.

8.3

8.2

8.2

8.1

8.0

8.0

7.9

7 &

7.8

7.7

Day.

11..........

12..........

13..........

14..........

15..........

16..........

17..........

1 S

19..........

20..........

July.

22

21

20

19

19

1C

17

16

15

14

Aug.

9.6

9.6

9.5

9.5

9.4

9.4

9.3

9.2

9.2

9 1

Sept.

7.6

7.6

7.5

7.4

7.4

7.4

7.4

7.3

7.3

7.3

1

Day.

21..........

22..........

23..........

24..........

25..........

26..........

27..........

28..........

29..........

30.......... 0131..........

July.

13

13

13

13

12

12

12

11

11

11

10

Aug.

9.0

9.0

8.9

8.8

8.8

8.7

8.6

8.6

8.5

8.4

8.4

Sept.

7.2.

7.2

7.2

7.2

7.1

7.1

7.1

7.1

7.0

7.0

NOTE. Discharge estimated July 1-5 and Sept. 16-30. Discharge interpolated July 7-21,23-30, Aug. 1-15, 

17-31. and Sept. 1-14.
52 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Dog Creek near Cheney, Wyo., for the year ending Sept. 30, 1918.

Month.

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

Discharge in second-feet.

Maximum.

......... 31

......... 10

......... 8. 3

1

Minimum.

10 

8.4 

7.0

Mean .

18.7 

9.28 

7.51

Run-off in 

acre-feet.

1.150 

571 

447

2,170

CABIN CREEK NEAR CHENEY, WYO.

LOCATION. About sec. 27, T. 38 N., R. 116 W. (unsurveyed), near the mouth of 

creek and 14 miles south of Cheney post office, Lincoln County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 18, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on left bank: read when station was visited by engineer.

DISCHARGE MEASUREMENTS. Made by wading above gage.

CHANNEL AND CONTROL. Bed composed of boulders embedded in gravel drift; shifting. No well-defined control.

ICE. Records discontinued during winter.

REGULATION. None.

ACCURACY. Stage-discharge relation shifting during high water. Gage read only 

when visited by engineer. Daily discharge ascertained by using actual measurements and interpolating for days of no gage height. Records poor.

Discharge 'measurements of Cabin Creek near Cheney, Wyo., during the year ending Sept.

30, 1918.

[Made by C. W. Kief-1

Date. Gage 

height.

Feet. 

1.47

.91

Discharge.

Sec.-ft. 

66.4

Date.

July 22.........

Gage 

height.

Feet.. 

0.81

.71

Discharge.

Sec.-ft. 

5.3

4.1

Date.

Sept. 3.........

Gage 

height.

Feet.. 

0.60

Discharge.

Sec.-ft. 

2.0

Daily discharge, in second-feet, of Cabin Creek near Cheney, Wyo., for the year ending

Sept. 30, 1918.

Day.

3...............

6...............

7...............

8...............

9...............

12...............

13...............

14...............

June. July.

20

16

14

"

1Q

"I 1

10

q

8

7

7

Aug.

3

3

3

3

3

q

0

Sept.

3

3

2

2

2

2

2

2

2

2

2

2

2

2

Day.

16...............

17...............

18...............

19...............

20...............

21 ...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

June.

64

62

59

56

53

50

47

44

41

38

35

32

9Q

26

24

July.

7

7

6

6

6

6

5

5

5

5

5

4

4

4

4

Aug.

3

3

3

3

3

3

3

3

3

3

3

Sept.

2

2

2

2

2

2

2

3

2

2

2

NOTE. Usedi ctual measurements June 15, July 10, 22, 31, and Sept. 3. Discharge estimated June 

16 to July 9, and Sept. 4-30; interpolated July 11-21, 23-30, Aug. 1 to Sept. 2.
SJSTAKE RIVER BASIN. 53

Monthly discharge of Cabin Creek near Cheney, Wyo., for the year ending Sept. 30, 1918.

Month.

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

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

Discharge in second-feet.

Maximum.

66 

22 

3 

3

Minimum.

24 

4 

3

2

Mean.

45.4

8.58 

3.00 

2.07

Run-off in 

acre-feet.

1,440 

528 

184 

123

2,280

BAILEY CREEK NEAR ALPINE, IDAHO.

LOCATION. About sec. 33, T. 38 N., R, 116 W. (unsurveyed), half a mile above 

mouth and 14 miles above Alpine, in Lincoln County, Wyo.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 11, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank. Stevens water-stage recorder at same site and 

datum used during 1917; inspected by engineer when station was visited.

DISCHARGE MEASUREMENTS. Made by wading near mouth of stream.

CHANNEL AND CONTROL. Control of rock just below gage; shifting at intervals. 

Banks not subject to overflow.

EXTREMES OP DISCHARGE. Data too few.

ICE. Records discontinued during winter.

DIVERSIONS. None.

REGULATION. Stream is outlet for Bailey Lake, which is spring fed; flow very uniform.

ACCURACY. Stage-discharge relation shifted during later part of year. Rating curve 

fairly well defined. Gage read only occasionally by engineer. Daily discharge 

ascertained by applying daily gage height to rating table and interpolating for 

days of no gage height. Records fair.

Discharge measurements of Bailey Creek, near Alpine, Idaho, during the year ending

Sept. 30, 1918.

Date.

Oct. 1

July 19

Made by 

T. R. Newell...........

C.W.Kief... ..........

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

Gage 

height.

Feet. 

2.77

3.00

2.90

Discharge.

Sec.-ft. 

23.2

31.7

26.6

Date.

Aug. 13

30

Made by 

C.W.Kief.............

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

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

Gage 

height.

Feet. 

2.83

2.80

2.80

Discharge.

Sec.-ft. 

24.1

22.8

20.9

Daily discharge, in second-feet, of Bailey Creek near Alpine, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2...............

3...............

4...............

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

7...............

8...............

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

ao. ..............

11...............

12...............

13...............

14...............

15...............

June. July.

30

30

30

30

30

29

29

29

29

29

29

28

28

28

28

Aug.

25

25

25

25

25

25

25

25

25

25

25

25

24

24

24

Sept.

22

22

22

22

22

22

22

22

22

22

22

22

22

22

Day.

16...............

17...............

18...............

19...............

20...............

21 ...............

22...............

23...............

24...............

26...............

27...............

28...............

30

31 ...............

June.

32

31

 31

31

01

31

on

30

July.

28

28

28

27

27

27

27

26

26

26

26

26

25

25

25

Aug.

24

24

24

24

24

24

23

23

23

23

23

23

23

23

22

Sept.

22

22

22

21

21

21

21

21

21

21

21

NOTE. Actual measurement used Sept. 19. Discharge estimated Sept. 20-30; interpolated. June 22- 

July IS, 20-26, 28-31, Aug. 1-12, 14-29, 31, and Sept. 1-18.
54 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Bailey Creek near Alpine, Idaho, for the year ending Sept. SO, 1918.

Month.

June 21-30. .................................

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

Discharge in second-feet.

Maximum.

............ ] 32

......... < 30

............ 1 25

........ 22

Minimum.

30 

25 

22 

21

j

Mean.

30.9 

27.7 

24.0 

21.6

1 !

Run-off in 

acre-feet.

613 

1,700 

1,480 

1,290

5,080

WOLF CREEK NEAR ALPINE, IDAHO.

LOCATION. About sec. 4, T. 37 N., R. 117 W. (unsurveyed), 400 feet above mouth of 

creek and 9 miles east of Alpine, in Lincoln County, Wyo. Wolf Creek enters 

Snake River 8 miles above mouth of Snake River canyon.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 17, 1917, to September 30, 1918, when station was discontinued.

GAGE. Lietz water-stage recorder on right bank referred to outside vertical staff; 

moved 300 feet downstream July 14, 1918; inspected by engineer.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge below gage.

CHANNEL AND CONTROL. Bed composed of boulders. Control formed by rocky riffle 

just below gage; somewhat shifting.

EXTREMES OP DISCHARGE. Maximum stage from water-stage recorder, 1.70 feet at 11 

p. m. July 14 (discharge, 48 second-feet); minimum stage, 1.27 feet September 

26-28 (discharge, 11 second-feet).

1917-1918: Maximum stage recorded, 2.52 feet at4p. m. July 18, 1917 (discharge, 

about 70 second-feet); minimum stage in 1918.

ICE. Records discontinued during winter.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Two fairly well denned rating 

curves used, one July 14 to August 16, the other August 26 to September 28. 

Shifting-control method used August 17-25. Operation of water-stage recorder not 

entirely satisfactory. Daily discharge ascertained by applying to rating table 

mean daily gage height obtained by inspecting recorder graph and interpolating for 

days of no gage height. Records fair.

Discharge measurements of Wolf Creek near Alpine, Idaho, during the year ending Sept. 30,

1918.

[Made by C. W. Kief.]

Date.

July 14.........

22.........

31 .........

Gage 

height.

Feet. 

1 60

1.50

1 46

Discharge.

Sec.-ft. 

33.9

27.5

21.4

Date.

Aug. 16.........

oo

Gage 

height.

Feet. 

1 43

1.33

Discharge.

- Sec.-ft. 

17.3

14.9

Date. Gage 

height.

Feet.

1.28

Discharge.

Sec.-ft. 

10.5
SNAKE RIVER BASIN. 55

Daily discharge, in second feet, of Wolf Creek near Alpine, Idaho, for the year ending Sept.

30, 1918.

Day.

1..........

2..........

3..........

4..........

5..........

6..........

7..........

8..........

9..........

10..........

July. Aug.

21

20

20

19

19

19

19

19

Sept.

16

16

16

15

15

15

14

14

15

14

Day.

11..........

13..........

14...........

15..........

16..........

17..........

18..........

20..........

July.

36

36

3409

32

on

29

Aug.

18

18

18

17

17

17

17

16

16

16

Sept.

14

13

13

13

12

12

12

12

12

12

Day.

21..........

22..........

23..........

24..........

25..........

26..........

27..........

28..........

29..........

30..........

31..........

July.

27

26

25

25

24

24

23

23

22

22

21

Aug.

16

16

- 16

17

17

17

17

17

16

16

16

Sept.

12

12

12

12

12

11

11

11

11

11

NOTE. Discharge interpolated July 23-30. Aug. 4-15, 31. Sept. 1. 2. 11-14. Discharge estimated Sept. 

29 and 30.

Monthly discharge of Wolf Creek near Alpine, Idaho, for the year ending Sept. SO, 1918.

Month.

July 14-31. .............................................

The neriod. ......................................

Discharge in second-feet.

Maximum.

36 

21 

16

Minimum.

21 

16 

11

Mean.

27.3 

17.6 

13.0

Run-off in 

acre-feet.

973 

1,080 

774

2.830

GREYS RIVER NEAR ALPINE, IDAHO.

LOCATION. About sec. 26, T. 37>N., R. 119 W. (unsurveyed), If miles above mouth 

of stream and 3 miles southeast of Alpine.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 6, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff in two sections on left bank; read by Mrs. Alice Gillis.

DISCHARGE^ MEASUREMENTS. Made from cable 200 feet below gage.

CHANNEL AND CONTROL. Bed composed of loose rock and boulders. Control formed 

by large boulders in riffle 500 feet below gage; fairly permanent.

EXTREMES OP DISCHARGE. Maximum stage recorded during year and for period of 

record, 4.85 feet June 14 (discharge, 5,200 second-feet); minimum stage, 0.52 

foot September 29 and 30 (discharge, 358 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation apparently permanent. Rating curve well 

defined. Gage read once daily to tenths or half-tenths prior to August 1 according to the stage and thereafter read to hundredths once daily. Daily discharge ascertained by applying daily gage height to rating table. Records good.

Discharge measurements of Greys River near Alpine, Idaho, during the year ending Sept. 30,

1918.

Date.

June 4 

July 3

17

26 

Aug. 2

10

Made by 

G.C.Baldwin.......... 

C. W. Kief.............

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

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

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

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

Gage

Feet. 

2.76 

2.12

1.14 

99

.88

Discharge.

Sec.-ft. 

2,360 

1 600

799

687

638

Date.

Aug. 19 

28

16

29

Made by 

C. W. Kief............. 

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

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

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

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

Gage

Feet. 

0.79

.71

.65

' .61 

.52

Discharge.

Sec.-ft. 

582 

481

398 

367
56 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Greys River near Alpine, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2................

3... .... .......

4................

6................

7................

8..... ...........

9................

10................

11................

12................

13................

14................

15................

June.

..2,360

2 OCA

3,120

3,670

3,810

4,680

4 980

5' 130

5,130

5,130

July.

1,590

1,220

1,140

Aug.

680

637

637

637

637

Af)9

602

595

568

568

568

CQQ

Sept.

466

454

454

454

440

447

447

440

440

434

434

421

Day.

16................

17................

18................

19

20................

21................

22... .............

00

24................

26................

27.... ............

29................

30................

June.

4,980

4 980

4' 830

4,530

3,250

3

KOA

2,990

2,860

2,600

2,010

1,900

July.

1,060

980

1,020

980

902

864

864

789

864

789

752

716

680

Aug.

568

568

540

547

533

533

513

506

480

480

466

466

Sept.

402

396

389

077

371

371 '389

396

389

377

371

371

358

358.

NOTE. Discharge estimated July 5-11. Braced figure shows mean discharge for period indicated. 

Monthly discharge of Greys River near Alpine, Idaho, for the year ending Sept. 30,1918.

Month.

June 4-30. .............................................

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

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

Discharge in second-feet.

Maximum.

5,130 

1,690 

680 

466

Minimum.

1,690 

680 

466 

358

Mean.

3,610 

1,100 

562 

412

Run-off in 

acre-feet.

193,000 

67,600 

34,600 

24,500

320,000

SALT RIVER NEAR ALPINE, IDAHO.

LOCATION. About sec. 4, T. 36 N., R. 119 W. (unsurveyed), 3 miles south of State line 

bridge at Alpine.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 1, 1917, to September 30, 1918, when station was discontinued. Miscellaneous measurements during 1916.

GAGE. Vertical staff on right bank, installed June 5, 1918, at same site but at a datum 

1.33 feet lower than inclined staff used previously; read by Glidden McNeel.

DISCHARGE MEASUREMENTS. Made from cable below gage.

CHANNEL AND CONTROL. Bed composed of coarse gravel and boulders. Control 

formed by riffle 100 feet below gage; practically permanent during season.

EXTREMES OF DISCHARGE. Maximum stage recorded during year and for period of 

record, 2.80 feet June 17 and 18 (discharge, 2,380 second-feet); minimum stage, 

0.70 foot September 19-23 and 27-29 (discharge, 609 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. Considerable water diverted above gage for irrigation in Salt River 

valley; amount not determined. No diversions below gage.

REGULATION. None, except that due to diversions.

ACCURACY. Stage-discharge relation practically permanent. Rating curve well 

denned. Gage read to hundredths once daily. Daily discharge ascertained by 

applying daily gage height to rating table. Records good.
SNAKE KIVEE BASIN. 57

Discharge measurements of Salt River near Alpine, Idaho, during the year ending Sept. 30.

1918.

Date.

Oct. 4

26

July 12

24

Aug. 3

Made by 

T. R. Newell...........

C.W.Kief.............

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

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

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

Gage 

height.

Feet. 

2.29

2.22

2.09

1.44

1.27

1.03

Discharge.

Sec.-fl. 

817

1.950

1,670

1,160

1,090

897

Date.

Aug. 9

10

27

Sept. 7

17

29

Hade by 

C. W. Kief. ............

G.C.Baldwin.........

C. W. Kief.............

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

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

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

Gage 

height.

Feet. 

1.02

1.04

.87

.78

.75

.71

Discharge.

Sec.-fl. 

S65

831

764

659

633

642

Daily discharge, in second-feet, of Salt River near Alpine, Idaho, for the year ending Sept.

30, 1918.

Day.

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

2...............

3...............

4...............

6...............

7............... 8......:........

9...............

10...............

11...............

12...............

13...............

14...............

15...............

June.

1,840

1,840

1.930

1.930

1,930

2,020

1,930

1,930

2,020

July.

1,240

1,240

1,160

1,160

1,110

1,070

1,110

1,070

1,070

1,030

1,030

1,200

1,030

1,240

1,240

Aug.

876

876

876

837

837

837

876

837

837

837

837

915

Sept.

722

722

684

722

684

684

684

722

722

722

684

684

646

646

Day.

16...............

17...............

18...............

19...............

20...............

21 .............. j

22...............

23..............:

25.............. j

26...............

27...............

28...............

29. ....... . ......

30............... *l

June.

2,290

2,380

2,380

2,290

2,200

2,110

2,110

2,110

1,580

1 400

1^400

1,240

July.

1,320

1,320

1,160

1.110

1,110

1.110

1,110

1,070

1,030

1,070

1,030

994

954

954

915

Aug.

876

837

876

876

837

760

760

760

760

760

722

722

722

Sept.

684

646

646

609

609

609

609

609

646

684

646

609

609

609

646

Monthly discharge of Salt River near Alpine, Idaho, for the year ending Sept. 30, 1918.

Month.

June 5-30.. .............................................

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

Discharge in second-feet.

Maximum.

2,380 

1,320 

915 

722

Minimum.

1,240 

915 

722 

609

Mean.

1,950 

1,110 

816 

664

Run-off in 

acre-feet.

101, 000 

68,200 

50,200 

39,500

259, 000

HcCOY CREEK NEAR ALPINE, IDAHO.

LOCATION. In sec. 6, T. 3 S., R. 46 E., half a mile from mouth of creek and 3 miles 

west of Alpine post office, Bonneville County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 15, 1917, to September 30, 1918, when station was discontinued.

GAGE. Lietz water-stage recorder on right bank, installed June 25,1918. and-referred 

to vertical staff used during 1917; inspected by engineer when station was visited.

DISCHARGE MEASUREMENTS. Made by wading above g^ige.

CHANNEL AND CONTROL. Bed composed of clean, coarse gravel and boulders, shifting at intervals. No well-defined control.

EXTREMES OF DISCHARGE. Maximum stage during year and for period of record, 

from water-stage recorder, 3.67 feet at 3 p. m. June 25 (discharge, 190 secondfeet); minimum stage, 2.81 feet September 22 (discharge, 17 second-feet).
58 SURFACE WATER SUPPLY, 1918, PART XII B.

ICE. Records discontinued during winter.

RE GULATIO N . None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined. Operation of recorder fairly satisfactory. Daily discharge ascertained 

by applying mean daily gage height to rating table. Shifting-control method 

used July 3-10, August 5-10, and August 28 to September 5. Records fair.

Discharge measurements of McCoy Creek near Alpine, Idaho, during the year ending

Sept. 30, 1918.

[Made by C. W. Kief.]

Date.

ly 2........

11........

25........

Gage 

height.

Feet.

3.30

3.14

Discharge.

Sec.-ft.

1<W

on o

58.1

1 

Date.

11........

26........

Gage 

height.

Feet.

3 ft/t

9 Q7

2.88

Discharge.

Sec.-ft.

VI Q

29.1

20.6

Date.

17........

Gage 

height.

Feet. 

2.85

2.84

Discharge.

Sec.-ft. 

22.0

20.5

Daily dischar, . second-feet, of McCoy Creek near Alpine, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2...............

4...............

5...............

6...............

7...............

S. ..............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

J,:, e. July.

14fi

1QE

 100

100

114

108

102

Qfi

90

88

86

92

Aug.

14

41

OQ

38

38

35

QC

33

33

01

30

30

30

30

51

Sept.

21

91

22

22

22

91

91

23

91

21

21

21

20

20

Day.

16...............

17...............

1 ft

19

20...............

91

22...............

OQ

24...............

OK

26...............

27...............

OQ

29

3001

June.

190

183

176

171

166

154

July.

84

80

86

73

71

69

65

63

61

57

55

53

49

47

45

44

Aug.

40

44

38

36

34

32

30

27

25

23

21

21

21

21

19

21

Sept.

20

19

IS

IS

IS

18

17

IS

19

22

20

18

IS

18

17

NOTE. Discharge interpolated Aug. 19-25, Sept. 14-16; estimated Sept. 26-30. 

Monthly discharge of McCoy Creek near Alpine, Idaho, for the year ending Sept. 30, 1918.

Month.

June25-30............ .... . . ... ....

July..... ...

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

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

The period

Discharge in second-feet.

Maximum.

190 

145 

51 

23

i

Minimum.

154

44 

19 

17

Mean.

173 

86.3 

31.9 

19.9

Run-off in 

acre-feet.

2,060 

5,310 

1.960 

1,180

10,500

INDIAN CREEK NEAR BLOWOUT, IDAHO.

LOCATION. In SE. £ sec. 13, T. 2 S., R. 45 E., 150 yards above mouth, three-quarter* 

of a mile below Alpine Hot Springs, and 6 miles northwest of Alpine, Bonneville 

County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 14, 1917, to September 21, 1918, when station was discontinued.
SNAKE RIVER BASIN. 59

GAGE. Vertical staff on left bank 100 yards below bridge, used until June 15 when 

it was washed out by high water. Vertical staff installed 600 feet above former 

gage on left bank, July 10, 1918, and used for remainder of season; read by Mrs. 

Emma Marks. Relation between gages not determined.

DISCHARGE MEASUREMENTS. Made by wading.

CHANNEL AND CONTROL. Bed composed of gravel and small boulders; shifting. No. 

well-defined control.

EXTREMES OF DISCHARGE. Maximum stage during year and for period of record, 

3.55 feet at 7.15 p. m. June 14 (discharge, 350 second-feet); minimum stage, 0.76 

foot at 7.30 a. m. September 21 (discharge, 0.4 second-foot).

ICE. Records discontinued during winter.

DIVERSIONS. Small diversions above, none below.

REGULATION. None other than that caused by diversion.

ACCURACY. Stage-discharge relation not permanent. Two rating curves used; one 

fairly well defined used June 4 to 15; the other, well defined, used July 28 to September 21. Records fragmentary, gage read to hundredths once daily. Daily 

discharge ascertained by applying daily gage height to rating table. Records fair.

Discharge measurements of Indian Creek near Blowout, Idaho, during the year ending

Sept. 30, 1918.

Date.

July 10

26

Aug. 10

Made by 

E.G. Howard..........

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

Gage 

height.

Feet. 

1.98

1.66

1.55

.94

Discharge.

Sec.-ft. 

85.4

45.1

22.6

1.8

Date.

! Aug. 10

23

Sept. 7

21

Made by 

G.C.Baldwin.........

E.C.Howard..........

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

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

Gage 

height.

Feet. 

0 93

.88

Discharge.

Sec.-ft.

1 o

Daily discharge, in serond-feet, of Indian Creek near Bloivout, Idaho, for the year ending

Sept. 30, 1918.

Day.

2...............

3...............

6...............

10...............

 10

.15...............

June.

86

88

103

117

163

248

284

322

341

322

350

341

July.

45

44

42

41

40

38

Aug.

7.5

4.5

2.6

1.3

2.0

1.7

1.6

1.7

1.3

1.7

1.3

1.2

1.3

1.3

1.2

Sept.

1.1

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.0

.9

Day.

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24. ..............

25...............

26...............

27...............

28...............

29...............

30...............

31 ...............

June. July.

37

35

34

33

30

28

27

26

24

23

20

17

13

12

11

Aug.

1.1

1.2

1 ^

1.2

1.2

1.2

1.3

1 3

1.2

1.2

1 ^

1.1

1.1

1.1

Sept.

0.8

.7

.6

.5

NOTE. Actual measurements used July 10 and 26. Discharge interpolated July 11-25, 27, and Sept. 

15-20.

Monthly discharge of Indian Creek near Blowout, Idaho, for the year ending Sept. 30, 1918.

Month.

Discharge in second-feet.

Maximum.

350 

45 

7.5 

1.2

Minimum.

.

11 

1.1 

.4

Mean.

230 

29.6 

1.66 

.95

Run-off in 

acre-feet.

5,470 

1,290 

102 

40

82374 22 WSP 48
60 SURFACE WATER SUPPLY, 1918, PART XII B.

BIG ELK CREEK NEAR BLOWOUT, IDAHO.

LOCATION. In sec. 23, T. 1 S., R. 45 E., 100 yards above mouth of creek and 5 miles 

northwest of Blowout, Bonneville County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 15. 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank; read by Oliver Jacobson.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge.

CHANNEL AND CONTROL. Bed composed of clean, coarse gravel and boulders. Control formed by riffle of gravel and boulders; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year and for period of 

record, 4.35 feet June 15 (discharge, 870 second-feet); minimum stage, 1.0 foot 

September 27 and 28 (discharge, 58 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. Small diversions above during irrigation season.

REGULATION. None except that due to diversions.

ACCURACY. Stage-discharge relation permanent. Rating curve well defined. Gage 

read to quarter-tenths once daily. Daily discharge ascertained by applying 

daily gage height to rating table. Records good.

Discharge measurements of Big Elk Creek near Blowout, Idaho, during the year ending

Sept. 30, 1918.

Date.

July 10

25

Aug. 9

Made by 

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

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

Gage 

height.

Feet.

3 97

1 98

1.59

1.28

Discharge.

Sec.-ft. 

540

200

127

83.8

Date.

Aug. 22

22

21

Made by 

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

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

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

Gage 

height.

Feet. 

1 34

1.34

1.11

1.04

Discharge.

Sec.-ft. 

85 9

88 4

64.8

63.4

Daily discharge, in second-feet, of Big Elk Creek near Blowout, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

3...............

4...............

5...............

6...............

7. ..............

8...............

9...............

10...............

11...............

12...............

13...............

14. ..............

15...............

June.

345

453

510

533

614

614

692

692

756

853

836

870

July.

283

283

226

237

233

226

226

216

197

184

184

174

174

Aug.

87

91

95

97

91

85

83

81

80

80

80

80

Sept.

70

70

70

70

70

68

65

65fit;

65

65

64

64

64

64

Day.

16...............

17...............

18...............

19...............

20...............

21 ...............

22...............

24...............

25...............

27...............

28...............

9Q

30...............

01

June.

756

772

708

740

661

655

646

524

481

439

384

308

308

July.

194

201

151

145

145

136

124

124

127

124

119

114

111

97

91

Aug.

80

83

85

83

83

80

85

74

74

72

72

72

72

72

72

72

Sept.

62

62

62

62

62

62

62

62

59

59

59

 58

58

58

58

NOTE. Discharge estimated Sept. 29 and 30.
SNAKE EIVBR BASIN. 61

Monthly discharge of Big Elk Creek near Blowout, Idaho, for the year ending Sept. 30,1918.

Month.

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

Discharge in second-feet.

Maximum.

870 

295 

97 

70

Minimum.

308 

91 

72 

58

Mean.

617 

178 

80.8 

63.5

Run-ofi in 

acre-feet.

34,300 

10,900 

4,970 

3,780

54,000

BEAR CREEK NEAR IRWIN, IDAHO.

LOCATION, In sec. 20, T. 1 S., R. 45 E., at wagon bridge a quarter of a mile from 

mouth of creek and 7 miles southeast of Irwin. Bonneville County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 23, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank, at downstream side of bridge; read by Thelma E. 

Hill.

DISCHARGE MEASUREMENTS. Made by wading above bridge.

CHANNEL AND CONTROL. Bed consists of coarse gravel and boulders; shifting. No 

well-defined control.

EXTREMES OP DISCHARGE. Maximum stage recorded during year and for period of 

record, 4.05 feet at 5.25 p. m. June 15 (discharge, 369 second-feet); minimum 

stage, 1.65 feet September 27-30 (discharge, 44 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. Several small diversions above gage.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Two fairly well defined rating 

curves used; one June 9 to July 11, the other July 25 to September 30. Shifting-control method used July 12-24. Gage read to half-tenths once daily. 

Daily discharge ascertained by applying daily gage height to rating table. Records 

fair.

Discharge measurements of Bear Creek near Irwin, Idaho, during the year ending Sept. 30,

1918.

[Made by E. C. Howard.]

Date.

June 27........

July 11........

25........

Gage 

height.

Feet. 

2.72

2.43

2.03

Discharge.

Sec.-ft. 

179

154

83.2

» * hS.

i Feet.

23......... 1.85

23........ | 1.S5

Discharge.

Sec.-ft. 

69.9

64.5

66.6

Date.

22........

Gage 

height.

Feet. 

1.84

1 1.74-7 A 

Discharge.

See.-ft.

52.4
62 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Bear Creek near Irwin, Idaho, for the year ending Sept.

80, 1918.

Day.

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

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

June.

355

355

327

320

313

355

369

July.

170

104

164

160

157

150

150

150

150

149

149

148

153

147

Aug.

81

75

75

75

75

75

75

75

75

74

75

70

64

70

81

Sept.

59

54

54

54

54

54

59

61

59

54

54

KA

54

Day.

10...............

17...............

18...............

19...............

20...............

21 ...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30................

31 ...............

June.

327

285

257

229

222

216

216

209

202

202

190

188

170

170

July.

139

131

124

117

115

114

108

101

100

93

87

87

87

87

87

87

Aug.

81

70

64

75

64

64

64

64

64

64

64

64

64

59

54

54

Sept.

54

54

54

54

49

49

51

49

49

49

4.Q

44

44

NOTE. Discharge interpolated June 12, 16, 20, and 23. 

Monthly discharge of Bear Creek near Irwin, Idaho, for the year ending Sept. 30, 1918.

Month.

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

Discharge in second -feet .

Maximum.

309 

170 

81 

61

Minimum.

170 

87 

54 

44

Mean.

258 

129 

69.3 

52.3

Run-off in 

acre-feet.

11,300 

7,930 

4,260 

3,110

26,600

PALISADE CREEK NEAR IRWIN, IDAHO.

LOCATION. In sec. 26, T. 1 N., R. 44 E., 20 feet above bridge, a quarter of a mile above 

mouth of creek, and 3£ miles southeast of Irwin, Bonneville County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 12, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on left bank installed June 3, 1918, 20 feet above vertical staff 

at bridge used in 1937; read by C. A. Weeks.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading below gage.

CHANNEL AND CONTROL. Bed composed of clean, coarse gravel; shifting during high 

water. No well-defined control.

EXTREMES OF DISCHARGE. Maximum stage recorded during year and for period of 

record, 5.36 feet at 6.55 p. m. June 14 (discharge, 555 second-feet); minimum stage, 

2.72 feet at 10.25 p. m. August 15 (discharge, 33 second-feet).

ICE. Records discontinued during the winter.

DIVERSIONS. Several diversions above gage.

REGULATION. None, except that due to diversions.

ACCURACY. Stage-discharge relation not permanent. .Rating curve fairly well 

defined. Gage read to hundredths once daily. Daily discharge ascertained by 

applying daily gage height to rating table, except June 7 to 13 for which shifting-control method was used. Records fair.
SNAKE RIVEE BASIN. 63

Discharge measurements of Palisade Creek near Irwin, Idaho, during flie year ending

Sept. SO, 1918.

Date.

14

Julv 9

9^

Made by 

E. C. Howard. .........

Gage 

height.

Feet.

5.32

3.43

3.21

Discharge.

Sec.-ft. . 

376

r^47

133

107

Date.

22

Sept. 6

Made by 

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

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

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

Gage 

height.

Feet. 

2.82

3.02

3.00

3.02

Discharge.

Sec.-ft. 

41.1

59.1

67.3

61.8

Daily discharge, in second-feet, of Palisade Creek near Irwin, Idaho, for the year ending

Sept. SO, 1918.

Day.

1.........

3....

4.......

5.............

6..... . . .

7. .......... .

8..............

9..... . ...

10.............

11 ........... .

12............... 13....... . :

14........... ...

15...............

June.

419

417

431

550

July.

162

1 ZA

150

162

158

1 *ift

135

105

101

98

98

94

Aug.

65

62

62

62

59

59

57

CO

45

AX

43

OQ

39

36

00

Sept.

65

«Q

71

71

71

70

74

71

fiC

68

71

71

Day.

17............... 1C

19

20................

22...............

23

OP;

27......-.....-.-

oc

9Q

on

qt

June.

518

440

404

360

364

378

360

325

231

July.

94

98

QC

Q4

91

91

91

87

87

Q9

74

71

71

68

62

65

Aug.

39

43

49

52

59

61

57

54

54

59

57

59

62

62

65

Sept.

65

68

68

68

68

66

68

68

65

65

62

65

68

65

68

NOTE. Actual measurement used June 6. 

Monthly discharge of Palisade Creek near Irwin, Idaho, for the year ending Sept. 30, 1918.

Month.

June 6-30..............................................

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

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

Discharge in second-feet.

Maximum.

550 

170 

65 

74

Minimum.

210 

62 

33 

62

Mean.

407 

108 

53.0 

68.2

Run-off in 

acre-feet.

20.200 

6;640 

3,260 

4,060

34,200

FALL CREEK NEAR SWAN VALLEY, IDAHO.

LOCATION. In sec. 9, T. 1 N., R. 43 E., 1 mile above mouth of creek and 3 miles above 

Swan Valley, Bonneville County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 21, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on right bank; read by Joseph Jones.

DISCHARGE MEASUREMENTS. Made by wading above gage.

CHANNEL AND CONTROL. Bed composed of clay and gravel. Control shifts with 

change in growth of vegetation.

EXTREMES OF DISCHARGE. Maximum stage recorded during year and for period of 

record, 3.82 feet-at 5p.m. June 7 (measured discharge, 109 second-feet); minimum 

discharge, 16 second-feet at 6.55 p. m. September 3, at stage of 2.95 feet.
64 SURFACE WATER SUPPLY, 1918, PART XII B.

ICE. Records discontinued during winter.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. -Stage-discharge relation seriously affected by growth of vegetation.

Gage read to hundredths once daily. Shifting-control method used throughout

season. Records fair.

Discharge measurements of Fall Creek near Swan Valley, Idaho, during the year ending

Sept. 30, 1918.

Date.

25

July 12

26

Made by 

E. C. Howard. .........

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

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

Gage 

height.

Feet. 

3.82

3.74

3.74

Discharge.

Sec.-ft. 

109

72.2

51.7

39.6

Date.

Aug. 11

24

23

Made by 

B.C. Howard..........

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

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

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

Gage 

height.

Feet. 

3.59

3.31

2.87

2.71

Discharge,

Sec.-ft. 

25.7

23.8

20.7

20.2

Daily discharoe, in second-feet, of Fall Creek near S-wan Valley, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2. ..............

3...............

4. ..............

5...............

6...............

7...............

8...............

9...............

10...............

11.. .............

12...............

13...............

14...............

15...............

June.

109

105

103

100

97

94

93

91

July.

Z.A

55

57

52

53

52

51

1Q

53

55

57

cn

64

Aug.

qq

34

34

q,i

32

32

30

01

30

30

27

28

28

28

25

3pt.

18

IS

16

18

18

19

20

20

20

20

20

20

20

20

Day.

16 ...............

17...............

18...............

19...............

20...............

21 ...............

22...............

23...............

24...............

25...............

26 ...............

27...............

28...............

29...............

30...............

31...............

June.

90

87

85

84

82

80

82

85

78

72

64

62

60

58

56

July.

62

59

57

52

45

42

41

40

39

40

40

38

38

36

34

34

Aug.

44

32

30 ' 25

25

25

25

24

24

24

23

22

21

20

20

19

Sept.

2C

20

21

21

22

21

20

20

20

2C

20

20

20

20

21

Monthly discharge of Fall Creek near Swan Valley, Idaho, for the year ending Sept. 30,1918.

Discharge in second-feet.

June 7-30...............................................

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

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

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

Maximum.

109

66

44

22

Minimum.

56

34

19

16

Mean.

84.4

49.4

27.7

19.7

Run-off in

acre-feet.

4,020

3,040

1,700

1,170

9,930

RAINY CREEK AT SWAN VALLEY, IDAHO.

LOCATION. In sec. 3, T. IN., R. 43 E., 150 yards above wagon bridge, a quarter of a 

mile east of Swan Valley, Bonneville County, and 1£ miles above mouth of creek.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 14, 1917, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff on left bank; read by Pauline Brewer.
SNAKE RIVER BASIN. 65

DISCHARGE MEASUREMENTS. Made from wagon bridge or by wading.

CHANNEL AND CONTROL. Bed composed of gravel and clay. Control affected by 

backwater from Snake River and by growth of aquatic plants.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 3.90 feet at 

10 a. m. June 14 (discharge, 195 second-feet); miminum stage, 2.21 feet September 28 and 29 (discharge, 43 second-feet).

1917-1918: Maximum stage in 1918. Minimum stage, 1.40 feet August 23, 1917 

(discharge, 36 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. Several diversions above gage, none below.

REGULATION. None except that due to diversions.

ACCURACY. Stage-discharge relation continually changing, 

not well denned. Gage read to hundredths once daily, 

tained by shifting-control method. Records poor.

Standard rating curve 

Daily discharge ascerDischarge measurements of Rainy Creek at Swan Valley, Idaho, during the year ending

Sept. 30, 1918.

Date.

14

July 8

24

Aug. 8

Made by 

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

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

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

Gage 

height.

Feet.

2

AQ

4

Qfi

1 89

2.28

Discharge.

Sec.-ft.

 me:

Date.

Aiisr 11

20

Made by 

G.C.Baldwin..........

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

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

Gage 

height.

Feet. 

2.34

2.43

2.44

2.36

Discharge.

Sec.~ft. 

53.0

50.1

57.9

57.3

Daily discharge, in second-feet, of Rainy Creek at Swan Valley, Idaho, for the year ending

Sept. 30, 1918.

Day.

l... ............

2...............

3...............

4...............

5...............

6. ..............

7...............

8...............

9...............

10...............

11.. .............

12...............

13...............

14...............

15 ...............

June.

178

180

181

183

184

186

187

189

190

193

195

187

July.

71

71

69

68

65

64

62

57

56

60

61

64

61

57

61

Aug.

57

55

PC

on

90

82

65

59

54

KC

47

50

55

Sept.

59

61

* c7

60

64

65

64

63

58

53

55

54

Day.

16 ...............

17...............

18...--..-.......

19

20...............

21 ...............

22...............

23...............

24..... ..........

26. ..............

97

28... ..........

29..... ..........

30....--...--....

01

June.

180

172

165

157

150

142

109

176

155

136

104

87

77

74

74

July.

61

62

64

69

69

69

66

66

66

62

63

64

64

64

61

62

Aug.

56

58

57

55

55

53

56

57

55

56

54

58

56

55

58

62

Sept.

53

51

48

49

53

48

46

47

46

46

46

46

43

43

46

Monthly discharge of Rainy Creek at Swan Valley, Idaho, for the year ending Sept. 30,1918.

Month.

,1 une 3-30 ..............................................

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

Discharge in second-feet.

Maximum.

195 

71 

95 

65

Minimum.

74 

56 

47 

43

Mean.

157 

63.8 

60.5 

53.7

Run-oft in 

acre-feet.

8.720 

3,920 

3.720 

3,200

............ 19.000
66 SURFACE WATER SUPPLY, 1918, PART XII B.

PINE CREEK NEAR SWAN VALLEY, IDAHO.

LOCATION. About sec. 16, T. 2 N., R. 43 E., 7 miles below Swan Valley, Bonneville 

County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 16, 1917, to September 30, 1918, when station was 

discontinued.

GAGE. Vertical staff on left bank, 150 feet above highway bridge; read by Mrs. Frank 

Soliday.

DISCHARGE MEASUREMENTS. Made from bridge or by wading below gage.

CHANNEL AND CONTROL. Bed composed of gravel and boulders. Control practically 

permanent after June 16.

EXTREMES OP DISCHARGE. Maximum stage recorded during year and for period of 

record, 5.55 feet at 7.30 p. m. June 12 (discharge, 461 second-feet); minimum 

discharge September 29 and 30 (estimated, 13 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. Several diversions above gage; none below.

REGULATION. None, except that due to diversions.

ACCURACY. Stage-discharge relation not permanent. Two well-defined rating 

curves used, one June 5-12, the other June 16 to September 28. Shiftingcontrol method used June 13-15. Gage read to quarter-tenths once daily. Daily 

discharge ascertained by applying daily gage height to rating table. Records 

good.

Discharge measurements of Pine Creek near Swan Valley, Idaho, during the year ending

Sept. 30, 1918.

Date.

16

July 8

24

Made by 

-

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

Gage 

height.

Feet.

 2.67

Discharge.

Sec.-ft. 

441 !

51.5

34.0

Date.

21

Sent. 5

20

Made by 

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

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

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

Gage 

height.

Feet. 

2.32

2.26

2.16

2.13

Discharge.

Sec.-ft. 

26.4

22.3

14. a

12.5

Daily discharge, in second-feet, of Pine Creek near Swan Valley, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

9

3................

4................

5................

6...... .........

7................

8................

9................

10................

11................

12................

13................

14................

-

June.

407

437

441

425

433

437

437

461

384

277

July.

66

64

62

60

60

60

57 a

53

51

49

51

Aug.

26

28

43

38

28

32

35

27

28

24

24

24

28

JQ

OC

SOT*.

18

16

16

14

15

14

14

14

21

14

14

14

14

14

14

Day

16................

18................

19................

20................

21................

22................

24.. .......... ....

25................

26................

27................

28.... ......... ...

29................

30................

June.

227

227

196

176

154

141

136

132

122

107

S7

82

78

73

68

July.

47

43

41

38

35

35

33

33

33

32

30

30

30

28

26

26

Aug.

28

24

28

28

21

22

21

21

21

21

21

21

19

19

18

IS

Sept.

. 14

14

14

14

14

14

14

14

14

14

14

14

14

13

13

NOTE. Discharge estimated Sept. 29 and 30.
SNAKE RIVER BASIIST. 67

Monthly discharge of Pine Creek near Swan Valley, Idaho, for the year ending Sept. 30 T

1918.

Month.

June 5-30. ..............................................

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

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

Discharge in second-feet.

Maximum.

4S1 

66 

43 

21

Minimum.

68 

26 

18 

13

Mean.

249 

45.1 

26.3 

14.5

Run-off in 

acre-feet.

12,800 

2.770 

1,620 

863

18,100

HENRYS FORK AT WARM RIVER, IDAHO.

LOCATION. In sec. 12, T. 9 N., R. 43 E., 300 yards above mouth of Warm River and

half a mile above Warm River railroad station, in Fremont County; above all

main tributaries.

DRAINAGE AREA. Not measured. 

RECORDS AVAILABLE. September 3, 1910, to March 22, 1915; April 3 to September

30, 1918. 

GAGE. Vertical staff on left bank; read by Axel Anderson. No change in gage

datum.

DISCHARGE MEASUREMENTS. Made from cable at gage.

CHANNEL AND CONTROL. Bed of stream consists of cobbles, gravel, and sand. Stagedischarge relation at times affected by growth of moss; conditions with this

exception are reasonably permanent. 

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 6.5 feet at 6 p. m.

May 5 (discharge, 2,620 second-feet); minimum stage recorded, 4.10 feet at

3.30 p. m. April 3 (discharge, 900 second-feet).

1910-1915; 1918: Maximum stage recorded, 7.4 feet May 21, 1912 (discharge,

3,300 second-feet); minimum stage, 4.1 feet March 14 and 26, 1913 (discharge,

705 second-feet). 

ICE. Stage-discharge relation not seriously affected by ice; open channel rating

used. Much ice reported present in the channel at various times for short periods. 

DIVERSIONS. Practically none. 

REGULATION. None. 

ACCURACY. Stage-discharge relation not permanent during year. Standard rating

curve well defined; several parallel curves used. Gage read to half-tenths once

daily. Daily discharge ascertained by applying daily gage height to rating table

or by shifting-control method. Records fair.

Discharge measurements of Henrys Fork at Warm River, Idaho, during the year ending

Sept. 30, 1918.

Date.

Apr. 4

5

May 3

Made by 

C. F. Elford............

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

G. C. Baldwin.........

Gage 

height.

Feet.

4.62

4.50

5.61

Discharge.

Sec.-ft. 

1,240

1.160

1,950

Date.

May 23

July 16

Sept. 8

Made by 

G.C. Baldwin.........

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

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

Gage 

height.

Feet. 

5.09

4.81

4.37

Discharge.

Sec.-ft. 

1,510

1.270

939
68 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Henrys Fork at Warm River, Idaho, for the year ending

Sept. 30, 1918.

Day.

1.....

2.....

3... .

4... .

o... .

6... .

7... .

8... .

9... .

10... .

11... .

12... .

13... .

14... .

15... .

Apr.

900

1,240

1,160

1,160

1,160

1,]60

1,230

1,370

1,370

1,440

1,540

1,620

1, 580

May.

1,720

1,790

1, 950

2,240

2,620

2,380

2,200

2, 20!)

2,159

1, 920

1,800

1,690

1,690

1,690

1,760

June.

1,510

1 440

1,440

1, 430

1, 430

1,470

1,500

1, 540

1, 570

1, 570

1,610

1,610

1,590

1,570

1,600

July.

1,210

1,210

1,210

1, 170

1,170

1,130

1,130

1,170

1,130

1,130

1,130

1,130

1,200

1,240

Aug.

1,100

1,100

1,040

1,040

1,040

1,040

1,040

1,000

1,000

1,000

1,000

1,000

1,000

1, 000 .

Sept.

970

970

970

970

970

970

970

964

970

970

970

970

970

970

970

Day.

16.....

17.....

18.....

19... .

20... .

21... .

22... .

23... .

24... .

25... .

26... .

27... .

28... .

29... .

30... .

31.....

Apr.

1,480

1,440

1,440

1,480

1,510

1,580

1,650

1,720

1,720

1,720

1,580

1,580

1,580

1,650

May.

1,790

1,710

i; 670

1,590

1,560

1,520

1,510

1,510

1,510

1,540

1,580

1,580

1.510

1,480

1,510

June.

1,560

1,530

1,460

1,430

1,430

1,460

1,460

1,500

1,450

1,380

1,310

1,280

1,280

1,280

July.

1,250

1,190

1,150

1,120

1,120

1,120

1.110

1,110

1,110

1,110

1,110

1,110

1,110

1,110

1,110

1,110

Aug.

1,000

1,000

1.000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

970

1,000

1,000

1,000

1,000

Sept.

970

970

970

970

970

970

970

970

970

1,000

970

970

970

970

970

Monthly discharge of Henrys Fork at Warm River, Idaho, for the year ending Sept. SO,

1918.

Month.

April3-30. ................................. .. . ....

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

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

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

S eptember ................... . . . . . . . . ......

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

Discharge in second-feet.

Maximum.

1,720 

2,620 

1,610 

1.250 

1,100 

1,000

Minimum.

900 

1.480 

1,280 

1,110 

970 

964

Mean.

1,450 

1,780 

1,470 

1, 150 

1,020 

971

Run-off in 

acre-feet.

80,500 

109,000 

87,500 

70,700 

62,700 

57,800

468,000

HENRYS FORE NEAR REXBURG, IDAHO.

LOCATION. In sec. 30, T. 6 N., R. 39 E., just below highway bridge,! mile below

mouth of south channel of Teton River, 7 miles below mouth of main channel

of Teton River, and 7 miles due west of Rexburg; below all tributaries. 

DRAINAGE AREA. Not measured.

HECORDS AVAILABLE. April 13, 1909, to September 30, 1918. 

GAGE. Friez water-stage recorder on right bank about 250 feet below bridge. Prior

to April 5, 1913, vertical staff on right bank about 25 feet farther downstream.

Datum of gage used prior to January I, 1912, 0.67 foot higher than that of present

gage. Observer, H. S. Sorensen. 

DISCHARGE MEASUREMENTS. Made from cable a quarter of a mile below gage, from

highway bridge above, or by wading. 

CHANNEL AND CONTROL. Stream bed composed of mud, sand, and fine gravel;

shifting. Except at bridge left bank is overflowed at high stages. 

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.96 feet at 11.30

a. m. June 25 (discharge, 7,560 second-feet); minimum stage recorded, 2.45 feet

at 2 a. m. August 9 (discharge, 564 second-feet).

1909-1918: Maximum stage recorded, 8.7 feet (equivalent to 9.37 feet present

datum) June 6 and 7, 1909 (discharge, 7,680 second-feet); minimum stage, 1.90

feet at 6 p. m. August 10, 1915 (discharge, 481 second-feet). 

ICE. Stage-discharge relation seriously affected by ice. Observations discontinued

during winter. 

DIVERSIONS. A large percentage of the natural summer flow diverted above station.
SNAKE RIVER BASIN. 69

REGULATION. None except that due to opening and closing of headgates of irrigation canals.

ACCURACY. Stage-discharge relation not permanent. Standard rating curve well 

defined. Several parallel curves used. Operation of water-stage recorder satisfactory. Mean daily gage height obtained by inspecting recorder graph. Daily 

discharge ascertained by applying mean daily gage height to rating table or by 

shifting-control method. Records good.

Discharge measurements of Henrys Fork near Rexburg, Idaho, during the year ending

Sept. 30, 1918.

Date.

May 22

June 21

July 13

Made by 

G.C.Baldwin.........

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

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

C. F. Elford.... ........

Gage 

height.

Feet.

4.87

9 34

5.00

2.53

Discharge.

Sec.-ft.

2

07A

2,320

574

Date.

Sept. 22

Made by 

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

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

Gage 

height.

Feet. 

2.48

3.54

3.86

Discharge.

Sec.-ft. 

581

1,110

1,600

Daily discharge, in second-feet, of Henrys Fork near Rexburg, Idaho, for the year ending

Sept. 30, 1918.

Day.

1.....

2.....

3.....

5.....

6..,..

7.....

8.....

9.....

10.....

11.....

12.....

13.,...

14.....

15 .....

Oct.

2,140

2,140

2,140

2,100

May. June.

3,180

3,630

3,270

3,270

3,720

4 300

4^700

5,550

7,010

7,010

7,250

July.

3,700

3,050

2,770

2,500

2,24C

2,320

2,320

2,400

2,400

2,480

2,320

2,320

2,560

Aug.

642

604

592

576

588

584

580

576

<W9

580

584

576

588

637

780

Sept.

1,100

999

1,020

1,010

971

QQQ

1,060

1,250

1,400

1,460

1,480

1,540

1,570

Day.

16.....

17 .....

18.....

19.....

20.....

21 .....

22.....

23.....

24.....

25.....

26.....

27.....

28.....

29.....

30.....

31.....

Oct. May.

2

Af\f\

2,240

2

Ojn

2

0Ofl

2 JJ1H

2,820

2,640

2 480

2 con

June.

7,370

7,250

6,890

6,650

6,770

6,770

6,770

7,010

7,370

7 230

6',840

6,250

5,680

4,700

July.

2,730

2,630

2.540

2,370

2,120

1,860

1,640

1,460

1,280

1,160

1,070

993

839

776

716

676

Aug.

917

1,050

1,130

1,130

1,160

1,190

1,220

1,250

1,220

1,220

1 220

1,160

1,100

1,100

1,070

1,060

Sept.

1,600

1,620

1,610

1,640

1,880

1,740

1,660

1,600

1,630

1,770

1,800

1,770

1,700

1,660

1,700

NOTE. No record Oct. 5 to May 21. 

Monthly discharge of Henrys Fork near Rexburg, Idaho, for the year ending Sept. 30, 1918 .

Month.

October 1 4

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

Discharge in second-feet.

Maximum.

2,140 

2,820 

7,490 

3,700 

1,250 

1,880

Minimum.

2,100 

2,240 

3,180 

676 

572 

971

Mean.

2,130 

2,500 

5, 820 

2,030 

879 

1,460

Run-off in 

acre-feet.

16,900 

49,600 

346,000 

125,000 

54,000 

86,900

WARM RIVER AT WARM RIVER, IDAHO.

LOCATION. In sec. 13, T. 9. N., R. 43 E. Boise meridian, at highway bridge half a 

mile above Warm River station on Yellowstone branch of Oregon Short Line 

Railroad, less than one-fourth mile above Robinson Creek, and half a mile above 

confluence of Warm River and Henrys Fork, in Fremont County.

DRAINAGE AREA. About 144 square miles (measured on Forest Service maps).
70 SURFACE WATEE SUPPLY, 1918, PART XII B.

RECORDS AVAILABLE. January 24, 1912, to March 22, 1915; April 3 to September 30,

1918. 

GAGE. Vertical staff attached to downstream side of bridge pier; read by Axel

And er son.

DISCHARGE MEASUREMENTS. Made by wading at various sections near the gage. 

CHANNEL AND CONTROL. One channel at all stages. Bed of stream rocky. Control

apparently fairly permanent. The stage-discharge relation during part of the

year is somewhat affected by growth of moss. 

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.70 feet May 4-7

(discharge, 370 second-feet); minimum stage recorded, 1.35 feet July 5 and 6 and

August 27 to September 7 (discharge, 208 second-feet.)

1912-1918: Maximum stage recorded, 2.3 feet June 2, 1912 (discharge, 900

second-feet); minimum stage, 1.3 feet February 15 and 20 and May 2, 5, and 7,

1912 (discharge, 192 second-feet). 

ICE. Stage-discharge relation is unaffected by ice and open channel ratings are

applicable.

DIVERSIONS. None above station. 

REGULATION. None. 

ACCURACY. Stage-discharge relation not permanent. Standard rating curve well

defined; several parallel curves used. Gage read to half-tenths once daily.

Daily discharge ascertained by applying daily gage height to rating table or by

shifting-control method. Records good.

Discharge measurements of Warm River at Warm River, Idaho, during the year ending

Sept. 30, 1918.

Date.

May 3

Made by 

C.F.Elford.. ..........

G. C. Baldwin.........

Gage 

height.

Feet. 

1.38

1.62

Discharge.

Sec.-ft.

yyA

Date.

July 16

Made by 

G. C. Baldwin .........

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

Gage 

height.

Feet. 

1.42

1.39

Discharge.

Sec.-ft. 

240

223

Daily discharge, in second-feet, of Warm River at Warm River, Idaho, for the year ending

Sept. 30, 1918.

Day.

1.....

2.....

3... .

4... .

5. . . .

6... .

7... .

8... .

9... .

10... .

11... .

12... .

13... .

14.....

1.5. ....

1

Apr.

23i

227

223

214

214

214

258

281

281

305

329

329

281

May.

324

324

331

370

370

370

370

346

346

321

298

298

298

298

298

June.

274

274

274

274

274

274

274

298

298

321

321

321

321

298

274

July.

229

229

229

208

208

229

229

252

229

229

229

229

252

252

Aug.

229

229

229

229

229

229

229

229

229

229

229

229

229

229

Sept.

208

208

208

208

208

208

216

229

234

234

234

234

234

234

Day.

16. . . . .

17.....

18. ....

19.....

20.....

21 .....

22.....

23.....

24.....

25. ....

26.....

27.....

28. ....

29.....

30.....

31.....

Apr.

281

258

214

214

277

324

324

349

349

324

300

277

300

324

May.

298

OQO

298

298

298

274

274

274

274

274

274

274

274

274

252

274

June.

274

252

229

229

252 274'

274

274

274

274

252

229

252

252

July.

242

252

229

229

229

229

229

229

229

229

229

229

229

229

229

Aug.

229

229

229

229

229

229

229

229

229

229

229

208

208

208

208

208

Sept.

234

234

234

234

234

238

238

238

238

238

238

238

238

23S

238
SNAKE RIVER BASIN. 71

Monthly discharge of Warm River at Warm River, Idaho, for the year ending Sept. 30,1918.

Discharge in second-feet.

Maximum.

April 3-30. ............................................. 349

May.. ................................................ .. 370

June. .................................................. 321

July..... .... ........................................... 252

September ............................................. 238

Minimum.

214

252

229

208

208

208

Mean.

278

305

274

232

226

228

Run-off in

acre-feet.

15,400

18.800

16.300

14,300

13,900

13,600

92,300

ROBINSON CREEK AT WARM RIVER, IDAHO.

LOCATION. In sec, 13, T. 9 N., R.43 E. Boise meridian, Fremont County, at Oregon

Short Line Railroad bridge one-third mile above Warm River station on Yellowstone branch and 300 yards above mouth of the creek. 

DRAINAGE AREA. About 41 square miles (measured on Forest Service map). 

HECORDS AVAILABLE. January 24, 1912, to March 22, 1915; April 4 to September

30, 1918. 

GAGE. Vertical staff attached to a pile on downstream side of railroad bridge; read

by Axel Anderson.

DISCHARGE MEASUREMENTS. Made by wading or from the bridge. 

 CHANNEL AND CONTROL. Control is a well-defined cobble riffle about 150 feet below

the gage and is apparently practically permanent. Bed of stream composed

of coarse gravel. 

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 3.50 feet at 6 p. m.

May 5 (discharge, 524 second-feet); minimum stage recorded, 1.75 feet at 11.15

a. m. September 8 (discharge, 82 second-feet). 

1912-1915; 1918: Maximum stage recorded, 4.3 feet May 28, 1912 (discharge,

1,140 second-feet); minimum stage, 1.50 feet February 15, 1912 (discharge, 51

second-feet). 

ICE. Stage-discharge relation seriously affected by ice. Observations discontinued

during winter.

DIVERSIONS. None above station. 

REGULATION. None. 

ACCURACY. Stage-discharge relation permanent. Rating curve well defined.

Gage read to half-tenths once daily. Daily discharge ascertained by applying

daily gage height to rating table. Records good.

Discharge measurements of Robinson Creek at Warm River, Idaho, during the year ending

Sept. 30, 1918.

Date.

May 3

23

Made by 

C. P. Elford............

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

Gage 

height.

Feet. 

1.95

3.12

2.79

Discharge.

Sec.-ft. 

Ill

381

284

Date. Made by 

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

Gage 

height.

Feet. 

1.98

1.80

Discharge.

Sec.-ft. 

105

82.4
72 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Robinson Creek at Warm River, Idaho, for the year.

ending Sept. 30, 1918.

Day.

1......

2......

3......

4.....

5. ....

6.. ..

7.. .

8..

9.. .

10.. .

11.. .

12.. .

13.. .

14.. ..

15.. ..

Apr.

104

104

97

97

147

167

210

234

259

286

246

210

May.

286

qqn OOU

395

448

524

485

448

448

448

362

300

286

315

346

346

June.

346

286

259

259

246

234

234

234

222

210

210

210

210

188

188

July.

120

112

112

112

112

112

112

112

129

129

112

112

112

147

129

Aug.

90

90

90

90

90

90

90

83

83

83

83

83

83

83

83

Sept.

83

83

83

83

83

83

83

83

83

83

83

83

8-3

83

83

Day.

16.. . .

17.. . .

18.. . .

19.. . .

20.. . .

21.. . .

22.. . .

23.. . .

24.. . .

25.. . .

26.. . .

27.. . .

28.. ..

29.... .

30.... .

31......

Apr.

188

167

167

167

178

188

222

234

259

286

300

259

234

234

272

May.

346

346

346

300

300

300

286

286

286

286

286

286

272

246

272

346

June.

199

210

188

167

147

147

210

210

234

188

147

147

129

129

129

July.

112

112

104

97

97

90

90

90

90

97

97

97

97

90

90

90

Aug.

83

83

83

83

83

83

83

83

83

83

83

83

83

83

83

83

Sept.

83

83

83

83

83

83

83

83

83

90

9&

83

83

83

90

Monthly discharge of Robinson Creek at Warm River, Idaho, for the year ending Sept,

30, 1918.

Month.

April 4-30..............................................

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

Maximum.

300

524

346

147

90

90

Minimum.

97

246

129

90

83

83

Mean.

204

341

204

107

84.6

83.7

Run-off in

acre- feet.

10,900

21.00&

12.100

6,580

5,200

4,. 980

60,800

FALL RIVER NEAR SQUIRREL, IDAHO.i

LOCATION. In sec. 35, T. 9 N., R. 44 E., 9 miles southeast of Marysville, 4 miles northeast of Squirrel post office, 3 miles downstream from former site of Wilson's sawmill, 

and 1 mile below head of Marysville Land & Improvement Co.'s canal. Same 

location as Fremont station.

DRAINAGE AREA. 390 square miles.

RECORDS AVAILABLE. January 1, 1904, to June 30, 1909;^May 2 to September 30, 

1918.

GAGE. Vertical staff on left bank, installed January 1, 1904. Original gage established in 1902 was located about 3 miles upstream. Observer, Martin Luetjen.

DISCHARGE MEASUREMENTS. Made from cable 200 feet below gage or by wading.

CHANNEL AND CONTROL. Stream bed composed of boulders in gravel drift. Control 

formed by riffle below gage; fairly permanent. Both banks are high, clean, 

and not subject to overflow. One channel at all stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.57 feet at 5.30 

p. m. June 15 (discharge, 5,380 second-feet); minimum stage recorded, 1.97 feet 

September 19-22 (discharge, 452 second-feet).

1904-1909; 1918: Maximum stage recorded, 6.8 feet June 6, 1909 (discharge, 

7,620 second-feet); minimum stage. 1.4 feet April 5, 1905 (discharge, 168 secondfeet).

Records for 1904-1909 published under name " Tall Eiver at Fremont, Idaho."
SNAKE RIVER BASIN. 73

ICE. Stage-discharge relation sometimes affected by ice. No winter record.

DIVERSIONS. Three irrigation canals divert above the station.

REGULATION. None except that attributable to headgate changes on canals above

station. 

ACCURACY. Stage-discharge relation permanent. Rating curve well defined for

stages under 3,000 second-feet; extended for higher stages. Gage read to hundredths once daily. Daily discharges ascertained by applying daily gage height

to rating table. Records good.

Discharge measurements of Fall River near Squirrel, Idaho, during the year ending Sept.

SO, 1918. 

[Made by G. C. Baldwin.]

Date.

May 6 .....................

22 .....................

Gage 

height .

Feet. 

3.44

2.98

Discharge.

Sec.-jt. 

1.900

1,310

Date.

July 15 .....................

Sept. 7. .....................

Gage 

height.

Feet. 

2.46

1 98

Discharge.

Sec.-ft. 

809

Daily discharge, in second-feet, of Fall River near Squirrel, Idaho, for the year ending Sept.

30, 1918.

Day.

1. .......

2........

3........

5........

6........

7........

8........

9........

10........

11........

12........

13........

14........

15........

May.

1,220

1,560

1.940

2,220

1,880

1,880

2,080

1,880

1,440

1,330

1,170

1,400

1,620

1,680

June.

1,880

1,380

1,810

2,080

2,360

2,580

2,810

3,620

4 300

4*480

4' 660

5,380

5,380

July.

1,880

1,620

1,680

1 44ft

1,380

1,220

1,170

978

888

888

720

888

801

Aug.

535

KAO

502

CflO

470

470

470

570

570

570

Sept.

470

470

470

470

464

458

458

458

458

464

470

470

470

464

Day.

16........

17........

18........

19........

20........

22........

OQ

94

OK

26........

27........

28. .......

9Q

30

01

May.

1.680

1,500

1,380

1,220

1,170

1,280

1,330

1,380

1,500

1,560

1,560

1,380

1,330

1,280

1,380

1,880

June.

5,020

4 300

4' 300

4 480

4' 130

S QCfl

4,840

5 OCA

5,200

4,840

3,620

2,970

2,660

2,220

1,810

July.

759

720

720

680

680

642

642

642

605

642

570

535

535

535

535

Aug.

570

535

535

535

535

535

noc;

535

502

502

502

470

470

470

470

Sept.

464

464

458

AK*)

A.%9

JKO

452

470

470

470

470

458

458

458

470

Monthly discharge of Fall River near Squirrel, Idaho, for the year ending Sept. 30, 1918.

Month.

May 2-31...... ........................................

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

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

Discharge in second-feet.

Maximum.

2,220 

5,380 

1,940 

570 

470

Minimum.

1,170 

1,380 

535 

470 

452

Mean .

1,540 

3,570 

933 

515 

463

Run-off in 

acre-feet.

91,600 

212,000 

57,400 

31,700 

27,600

420,000

WILLOW CREEK NEAR RIRIE, IDAHO.

LOCATION. In T. 3 N., R. 40 E., at Cutler ranch, 3 miles above mouth of canyon

and 6 miles southeast of Ririe, Bonneville County. 

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. December 23, 1916, to September 30, 1918. 

GAGE. Vertical staff on right bank. Gage used prior to May 1, 1917, was a vertical

staff on right bank a quarter of a mile upstream. Observer, Pearl Cutler. 

DISCHARGE MEASUREMENTS. Made by wading or from cable 200 feet downstream

from gage. 

CHANNEL AND CONTROL. Stream bed composed of boulders in gravel drift; fairly

permanent. Left bank is overflowed at high stages; both banks are brush cove r e
74 SURFACE WATER SUPPLY, 1918, PART XII B.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.75 feet at 6.30 

p. m. April 26 (discharge, 1,500 second-feet); minimum stage recorded, 2.30 feet 

September 2 and 3 (discharge, 36 second-feet).

1916-1918: Maximum stage recorded, 16.3 feet May 15, 1917 (discharge, 4,200 

second-feet); minimum stage, 2.53 feet January 13, 1917 (discharge, 34 secondfeet).

ICE. Stage-discharge relation seriously affected by ice.

DIVERSIONS. No irrigation canals of any consequence above station.

REGULATION. None.

ACCURACY. Stage-discharge relation fairly permanent. Standard rating curve well 

denned. Gage read to hundredths once daily. Daily discharge ascertained by 

applying daily gage height to rating table or as indicated in footnote to dailydischarge table. Records good during open-water season.

Discharge measurements of Willow Creek near Ririe, Idaho, during the year ending Sept.

30, 1918.

Date.

Oct. 12

Tan 1Q

Mar. 5

Apr. 10

Made by 

V^illiam Kessler

G.C.Baldwin.........

C.F.Elford.... ........

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

Gage 

height.

Feet. 

2.80

"3.01

4.43 1

Discharge.

Sec.-ft. 

67.7

7c 7

114

339

\ Date.

1 

: May 20

i

Made by 

.

K.B.Kilgore. .........

Gage 

height.

Feet. 

5.49

3.97

2.41

Discharge.

Sec.-ft. 

584

236

42.4

<» Stage-discharge relation affected by ice.

Daily discharge, in second-feet, of Willow Creek near Ririe, Idaho, for the year ending Sept.

30, 1918.

1 

Day. Oct.

1..................... 68

3.....................! 68

5..................... 68

7 RS

9..................... 68

10.....................: 68

11..................... 68

12. .................... 68

13..................... 68

14.....................: 68

15.....................! 68

16..................... ; 69

17..................... 68

18..................... 68

19..................... 63

20..................... 70

21..................... 70

23. .................... 70

24. .................... 70

25..................... 70

26..................... 68

'27..................... 68

28. .................... 66

29..................... 65

30..................... 62

31..................... 75

Nov.

75

66

73

72

72

70

70

70

69

AS

63

63

66

70

70

72

70

68

68

7*

81

CO

70

70

70

79

7370

70

Dec.

81

88

73

73

72

79

70

7c

84

77

75

84

inq

98

QO

Jan.

75

88

66

70

81

70

76

Mar.

86

66

88

82

77

93

92

90

88

119

119

86

79

72

77

88

90

90

105

120

134

i >ai

142

165

1 89

Apr.

217

226

197

170

150

142

134

173

190

302

336

346

444

562

526

468

389

336

294

347

400

CCO

872

1,150

1,500

1 340

1,170

i n^ft

May.

1,100

1,060

1,030

1,030

1,030

1 030 '972

914

886

832

778

700

674

649

624

599

574

574

567

Cfl9

479

474

JflQ

485

CAO

CRO

562 ^^f\

562

June.

636

574

490

468

445

422

378

378

346

336

325

314

284

284

281

278

264

254

245

254

264

294

264

237

OAQ

1 89

174

July.

165

161

157

150

142

142

127

127

134

127

124

121

157

176

173

142

127

110

105

100

QO

86

81

81

7Q

77

73

70

66

62

Aug.

60

62

60

59

57

60

56

53

52

52

48

47

46

62

77

72

60

54

52

49

47

47

47

47

4A

41

OQ

07

00

Sept.

37

36

36

36

37

37

38

39

41

42

43

40

40

40

42

43

\&

42

41

40

42

<M

39

46

46

46

45

JO

42

42

NOTE. Stage-discharge relation affected by ice Dec. 3-18, Jan. 8 to Mar. 4. Discharge estimated from 

observer's notes, weather records, and one current-meter measurement as follows: Dec. 3-18,63 second-feet; 

Jan. 8-18,61 second-feet; Jan. 20-31, 66 second-feet; Feb. 1-8, 71 second-feet; Feb. 9-12, 75second-feet; Feb. 

13-15, 79 second-feet; Feb. 16-23, 68 second-feet; Feb. 24-28, 64 second-feet; Mar. 1-4, 77 second-feet. Discharge interpolated Oct. 2,17,28, Nov. 4,9,13,17,20,21.26,28, Dec. 30, Jan. 6, Mar. 9, 19, 26, Apr. 20, 27, 30, 

May 7,24,26, June 5,11,16,22,30, July 2, 20, 28, Aug. 3,7,14,19,28, Sept. 4, 5,15,19,30.
SNAKE RIVER BASIX. 75

Monthly discharge of Willow Creek near Ririe, Idaho, for the year ending Sept. 30, 1918.

Month.

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

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

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

The year. ........................................

Discharge in second-feet.

Maximum.

75 

88 

103

88

182 

1.500 

1,100 

636 

176 

77 

46

1,500

Minimum.

62 

63

66 

134 

468 

174 

62 

37 

36

36

Mean.

68.1 

71.2 

71.8 

66.1 

70.3 

98.8 

536 

716 

324 

118 

52.0 

40.8

186

Run-oft in 

acre-feet.

4,190 

4,240 

4,410 

4,060 

3,900 

6,080 

31,900 

44,000 

19,300 

7,260 

3,200 

2,430

135,000

WILLOW CREEK NEAR IONA, IDAHO.

LOCATION. In sec. 19, T. 3 N., R. 38 E., at concrete bridge 9 miles out on main road 

east from Idaho Falls. Boomer canal crosses in a flume 600 feet above station.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. December 22,1916, to September 30,1918.

GAGE. Vertical staff attached to downstream face of right abutment of concrete arch 

bridge; read by C. N. Kemper.

DISCHARGE MEASUREMENTS. Made from highway bridge, footbridge 50 feet downstream, or by wading.

CHANNEL AND CONTROL. Stream bed composed of mud, sand, and gravel; shifting. 

Banks subject to overflow at very high stages.

EXTREMES op DISCHARGE. Maximum stage recorded during year, 4.44 feet at 11 a. m. 

May 2 (discharge, 264 second-feet); minimum stage recorded, 0.60 foot at 5 p. m. 

November 8 (discharge, 2 second-feet).

1916-1918: Maximum stage recorded, 7.75 feet May 16 and 17, 1917 (discharge, 

603 second-feet); minimum stage, 0.60 foot November 8, 1918 (discharge, 2 

second-feet).

ICE. Stage-discharge relation seriously affected by ice; data inadequate for determination of daily discharge during period of ice effect.

DIVERSIONS. Sand Creek diverts above station; also irrigation canals, but definite 

information as to the number of canals and quantity of water diverted is not 

available.

REGULATION. Flow regulated at diversion works above station. Several irrigation 

canals waste water into this channel.

ACCURACY. Stage-discharge relation not permanent. Standard rating curve fairly 

well defined; parallel curves used. Gage read to hundredths once daily. Daily 

discharge ascertained by applying daily gage height to rating table or as noted 

in footnote to daily-discharge table. Records fair during open-water season.

discharge measurements of Willow Creek near lona, Idaho, during the year ending Sept.

30, 1918.

Date.

Oct. 13

Jan. 20

Mar. 6

Apr. 8

11

Made by 

G. C. Baldwin.........

C. F. Elford............

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

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

Gage

Feet. 

1.03

ol.04

a, 1.40

1.12

2.02

Discharge.

Sec.-ft. 

14.4

7.9

8.4

22.9

69.6

Date.

26

Tnlv 19

Made by 

R. B. Kilgore..........

G.O.Baldwin.........

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

Gage 

height.

Feet. 

2.86

3.60

3.45

3.02

2.56

Discharge.

Sec.-ft. 

133

179

169

146

105

« Stage-discharge relation affected by ice. 

82374 22 WSP 483 6
76 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Willow Creek near lona, Idaho, for the year ending

Sept. 30, 1918.

Day.

I.... ......... .......

2......................

3......................

4.... ......... ... . ..

5......................

6.... ......... ... . .

7.... ......... ........

8.... ..................

9....... ..... .......

10.... ..................

11.... ... ..... .....

12.... ..................

13......................

14.... ......... ..... .

15.... ..................

16............. ... . .

17......................

18......................

19......................

20......................

21.................... .

22....... ... . ..

23......................

24.... ..................

25

26 .

27..... .... ..

28.....................

29..... . ... ..

30................... .

31......................

Oct.

20

20

18

18

18

18

16

16

1 K

14

14

13

12

11

11

10

10

9

8

8

8

7

6

6

0

Nov.

4

3

3

18

18

18

19

20

1 fi

19

18

18

19

18

18

18

18

20

Dec.

12

12

20

17

12

16

17

12

18

18

18

18

12

14

18

18

1 o

20

18

18

18

17

IS

20

1 ft

18

22

Jan.

22

20

18

18

10

.......

.......

.......

Mar.

46

43

41

3807

38

37

36

35

33

34

33

31

19

Apr.

20

23

26

30

32

28

27

24

47

70

74

85

87

87

94

102

80

69

67

81

87

187

234

236

250

260

241

250

May.

255

264

256

250

250

250

241

170

198

196

192

192

191

187

162

146

152

138

130

127

111

122

151

152

146

170

182

178

162

157

160

June.

154

151

151

146

138

133

130

130

126

130

130

138

170

174

178

178

182

182

178

178

180

178

174

187

182

174

170

154

154

142

July.

142

138

136

134

130

126

138

154

146

148

149

140

146

146

154

162

166

149

146

148

148

146

142

138

134

134

130

130

126

126

122

Aug.

94

94

90

94

101

112

122

122

108

108

105

108

109

108

104

94

101

94

94

91

88

87

88

87

87

83

81

75

75

75

74

Sept.

74

75

75

74

74

75

76

76

105

94

81

77

76

75

74

69

73

59

47

27

37

37

37

36

34

34

33

32

32

30

NOTE. Stage-discharge relation affected by ice Jan. 9 to Mar. 16; discharge estimated from observer's 

notes, weather records and two current-meter measurements as follows: Jan. 9-19, 5 second-feet; Jan. 21-31, 

6 second-feet; Feb. 1-3, 2 second-feet; Feb. 4, 5 second-feet; Feb. 5-9, 6 second-feet; Feb. 10-20, 5 secondfeet; Feb. 21-28, 8 second-feet; Mar. 1-5,12 second-feet; Mar. 7-16, 35 second-feet.

Monthly discharge of Willow Creek near lona, Idaho, for the year ending Sept. 30,1918.

Month.

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

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

Discharge in second-feet.

Maximum.

20 

20 

22 

22

260 

264 

187 

166 

122 

105

264

Minimum.

3

2 

12

20 

111 

126 

122 

74 

27

Mean.

11.8 

12.9 

16.8 

8.74 

5.71 

31.0 

106 

182 

159 

141 

95.3 

59.9

69.5

Run-off in 

acre-feet.

726 

768 

1,030 

537 

317 

1,910 

6,310 

11,200 

9,460 

8.670 

5,860 

3,560

50,300

GRAYS LAKE OUTLET NEAR HERMAN, IDAHO.

LOCATION. In sec. 15, T. 3 S., R. 42 E., 3 miles below bridge at outlet of lake and

3f miles west of Herman, 'Bonneville County. 

DRAINAGE AREA. Not measured. 

RECORDS AVAILABLE. April 5, 1916, to September 30, 1918.
SNAKE RIVER BASIN. 77

GAGE . Stevens continuous water-stage recorder on right bank, installed April 20,1918; 

inspected by C. H. Johnson and Thomas Priest. Vertical staff at practically same 

site and datum used during 1916.

DISCHARGE MEASUREMENTS. Made from cable near gage or by wading.

CHANNEL AND CONTROL. Bed composed of gravel; practically permanent. No welldefined control. Left bank subject to overflow at high stages.

EXTREMES OF DISCHARGE. Maximum stage during year from water-stage recorder, 

4.65 feet about April 25 (discharge, 624 second-feet); minimum stage recorded, 

0.72 foot August 31 (discharge, 1.1 second-feet). A lower discharge may have 

occurred during period of no record.

1916 1918: Maximum stage recorded, 5.9 feet at 9 a. m. May 15, 1917 (discharge, l',350 second-feet); minimum stage occurred in 1918.

ICE. Ice practically stops flow from lake at times but springs probably keep channel 

near gage free from ice. Records discontinued during winter.

DIVERSIONS. No diversions between lake and station. Diversions for irrigation 

are made above lake, but amount of water diverted is not known.

REGULATION. No artificial regulation above station.

ACCURACY. Stage-discharge relation practically permanent. Rating curve well 

defined. Operation of recorder not entirely satisfactory. Daily discharge ascertained by applying to rating table mean daily gage height obtained by inspecting recorder graph. Records prior to July 18 fair; thereafter good.

Discharge measurements of Grays Lake outlet near Herman, Idaho, during the year ending

Sept. 30, 1918.

Date.

Oct. 19

Apr. 20

27

Made by 

T. K. Newell... ........

C. F.Elford............

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

Gage 

height.

Feet. 

0.93

3.34

4.44

Discharge.

Sec.-ft. 

5.8

Date.

Apr. 28

Made by 

C. F. Elford...........

G. C.Baldwin.........

Gage 

height.

Feet. 

4.40

2.79

1.11

Discharge.

Sec.-ft. 

512

181

13.9

Daily discharge, in second-feet, of Grays Lake outlet near Herman, Idaho, for the year

ending Sept. 30, 1918.

Day.

1. ....

2. ....

4 .....

6.....

7.....

S

9.....

10.....

11.....

12. ....

13.....

14.....

1.7. ....

Apr. May.

472

455

410

369

326

322

319

315

312

308

308

308

308

298

2S8

June.

200

ISO

159

154

148

143

137

132

124

118

109

101

97

95

94

July.

66

64

62

60

58

58

56

54

51

4,">

43

41

40

38

Aug.

18

18

17

16

16

U

13

12

10

9.1

8.3

8.7

8.7

Sept.

1.4

1.6

1.8

i.8

1 9

1 O

1.9

2. '1

2.1

2.1

1.9 \

2.2 ,

2.4 ;

2.4

Day.

16.....

17.....

18. ....

19.....

20.....

21.. ..

22.. ..

23.. ..

24.. ..

25.. ..

26.. ..

27.. ..

28.. ..

29.. ..

w

Q1

Apr.

274

258

344

430

517

603

574

544

525

525

507

May.

278

268

258

258

245

232

219

206

193

180

172

165

180

185

190

1 Q^

June.

92

91

89

88

86

85

83

82

80

79

77

75

73

71

69

July.

36

34

32

31

30

28

27

26

25

22

22

21

20

19

AUK.

7.6

7.3

6.5

5.5

4.8

4.6

4.3

4.0

3.5

3.2

3.2

2.7

2.1

1.8

1.4

1.1

Sept.

2.2

2.7

3.5

3.8

3.8

3.5

3.5

3.5

3.2

3.2

3.5

3.8

4.0

4.3

4.6

NOTE. Discharge estimated April 21-26; interpolated May 6-9,11, 12,14-17, 20-24, 26, 29, 30, June 1-1-25, 

27-30, July 1-4, 7-9, and 12-16.
78 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Grays Lake outlet near Herman, Idaho, for the year ending Sept.

SO, 1918.

Month.

April 20-30. ............................................

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

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

Discharge in second-feet.

Maximum.

603 

472 

200 

66 

18 

4.6

Minimum. Mean.

258 

165 

69 

19 

1.1 

1.4

464 

276 

107 

39.1 

8.34 

2.75

Run-oft in 

acre-feet.

10,100 

17,000 

6,370 

2,400 

513 

164

36,500

IDAHO (GOVERNMENT) CANAL NEAR SHELLEY, IDAHO.

LOCATION. In sec. 31, T. 1 N., R. 37 E., Bingham County, 600 feet below canal headgates, 1J miles southwest of Shelley, and 10 miles above point where Sand Creek 

crosses canal.

RECORDS AVAILABLE. June 20, 1912, to September 30, 1918. No water diverted 

during 1913 because of break in the canal.

GAGE. Inclined staff on right bank set in the concrete of the rating section; read by 

Mitchell and Vaughn.

DISCHARGE MEASUREMENTS. Made by wading or from a suspension footbridge at the 

gage.

CHANNEL AND CONTROL. Trapezoidal concrete rating section. Growth of weeds 

and brush causes changes in the stage-discharge relation, but bottom of rating section evidently furnishes a permanent point of zero flow at about 0.0 foot gage 

height.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 2.83 feet at 9 a. m. 

July 29 (discharge, 262 second-feet); minimum flow probably zero when headgates are closed, but has not been definitely determined, as no records are obtained when gates are closed.

1912-1918: Maximum stage recorded, 3.7 feet July 29, 1912 (discharge, 308 

second-feet); minimum as stated above.

ICE. Canal not operated during winter.

DIVERSIONS. None.

REGULATION. Flow controlled at the headgates 600 feet above.

ACCURACY. Stage-discharge relation not permanent; affected by growth of vegetation. 

Rating curve well denned; several parallel curves used. Gage read twice daily 

to hundredths. Daily discharge ascertained by applying mean daily gage height 

to rating table or by shifting-control method. Records fair.

Discharge measurements of Idaho (Government) canal near Shelley, Idaho, during the year

ending Sept. 30, 1918.

Date.

May 19

27

27

Made by 

C.F.Elford... .........

Gage 

height.

Feet. 

0.30

2 J.9

2.50

2.50

Discharge.

Sec.-ft. 

4.5

OOO

005

Date.

Julv 17

30

Made byG.C.Baldwin.........

C. F.Elford..... .......

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

G. C. Baldwin .........

Gage 

height.

Feet. 

2.00

2.65

2.76

2.60

Discharge.

Sec.-ft. 

170

238

228

2TO

NOTE. D. G. Martin and C. F. Elford, State employees.
SNAKE RIVER BASIN. 79

Daily discharge, in second-feet, of Idaho (Government) canal near Shelley, Idaho, for the

year ending Sept. 30, 1918.

Day.

l. ......

 2.......

3.......

4......

5.......

6.......

7.......

8.......

9.......

10.......

11.......

12.......

13.......

14.......

15.......

May. June.

100

186

193

208

July.

193

216

226

222

222

224

224

224

222

213

218

224

222

213

Aug.

224

211

211

221

223

233

232

213

215

225

217

" 216

208

204

228

Sept.

190

191

195

201

201

211

198

200

203

OrtO

203

Day.

16.......

17.......

18.......

19.......

20.......

21.......

22.......

23.......

24.......

25.......

26.......

27.......

29.......

30.......

01

May.

5

June.

224

237

244

244

252

252

252

246

226

196

193

218

233

222

211

July.

191

169

191

222

222

215

215

222

224

224

224

218

252

253

240

240

Aug.

215

199

200

199

193

187

204

203

203

201

196

189

187

189

192

Sept.

200

200

198

156

156

156

167

167

167

168

167

167

166

165

165

NOTE. Discharge, May 20 to June 10, estimated at 5 se -ond-feet on assumption that leakage through 

headgates noted May 19 continued throughout the period.

Monthly discharge of Idaho (Government) canal near Shelley, Idaho, for the year ending

Sept. 30, 1918.

Month.

May 19-31. .............................................

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

Discharge in second-feet.

Maximum.

252 

253 

233 

211

Minimum.

169 

187 

156

Mean.

5 

147 

220 

207 

186

Run-off in 

acre-feet.

129 

8,750 

13,500 

12,700 

11,100

46,200

BLACKFOOT RIVER ABOVE RESERVOIR, NEAR HENRY, IDAHO.

LOCATION. About sec. 9, T. 7 Si, R. 42 E., at Cully's ranch, 1J miles above flow 

line of Blackfoot-Marsh reservoir, 7 miles south of Henry, Bannock County, and 

13 miles north of Soda Springs.

DRAINAGE AREA. 360 square miles (measured on Land Office map).

RECORDS AVAILABLE. March 25, 1914, to September 30, 1918.

GAGE. Inclined staff on right bank half a mile above Cully's house and 200 feet 

below shearing plant; installed October 12, 1917, at practically same location and 

datum as vertical staff used since October 23, 1914. Read by Mrs. T. W. Cully 

and Mrs. A. C. Swanson. Original gage was vertical staff attached to right 

bridge pier three-quarters of a mile above.

DISCHARGE MEASUREMENTS. Made from cable at gage or by wading.

CHANNEL AND CONTROL. Bed composed of loose rocks, boulders, and gravel. Control composed of loose rock; fairly permanent. Right bank subject to overflow 

at high stages.

EXTREMES op DISCHARGE. Maximum stage recorded during year, 3.45 feet at 9. 30 

a. m. May 30 (discharge, 520 second-feet); minimum stage recorded, 1.46 feet 

September 2, 3, and 18 (discharge, 58 second-feet). Minimum discharge for year 

probably occurred during period of no record.

1914-1918: Maximum stage, 6.85 feet May 16, 1917, estimated from high-water 

mark above gage (discharge, 2,060 second-feet); minimum stage recorded, 1.65 

feet November 13, 1916 (measured discharge, 52 second-feet). Minimum discharge probably occurred during winter.
80 -B.

ICE. Stage-discharge relation affected by ice; observations discontinued during 

winter.

DIVERSIONS. A few small diversions are made above gage.

REGULATION. None. Entire flow passing gage is stored in Blackfoot-Marsh reservoir 

1£ miles below.

ACCURACY. Stage-discharge relation shifted slightly. Rating curve fairly well 

defined. Gage read to quarter-tenths once daily. Daily discharge ascertained 

by applying daily gage height to rating table, except during period June 3 to 

August 5, for which shifting-control method was used. Records good, except 

for December for which they are fair.

Discharge measurements of Blackfoot River above reservoir, near Henry, Idaho, during

year ending Sept. 30, 1918.

Date.

Oct. 21

Mar. 9

Apr. 24

Made by 

T.K. Newell...........

C. F.Elford. ...........

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

Gage 

height.

Feet. 

1.74

3.03

Discharge.

Sec.-ft.

QS 1

73.8

401

Date.

2

Made by 

K.B.Kilgore. .........

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

G. C. Baldwin.........

Gage 

height.

Feet. 

2.86

2.80

1.69

Discharge.

Sec.-ft. 

326

326

86.1

Daily discharge, in second-feet, of Blackfoot River above reservoir, near Henry, Idaho, for 

the year ending Sept. 30, 1918.

Day.

3......................

6......................

7......................

8......................

10......................

11......................

13......................

14......................

15......................

16......................

17......................

18......................

19......................

20......................

21......................

22......................

23......................

24......................

25......................

26......................

27... ...................

28......................

29......................

30......................

,31......................

Oct.

115

121

%

100

96

100

110

106

103

106

103

96

103

96

103

92

103

98

95

98

103

95

99

103

92

86

118

124

Nov.

8Q

95

95

86

82

89

99

86

82

89

82

99

89

82

99

95

92

73

67

82

118

137

82

89

95

86

124

82

Dee.

95

89

. 80

92

99

95

103

103

92

95

95

99

89

106

129

118

92

Jan.

QQ

82

86

92

89

Mar.

74

98

95

120

91

124

120

115

112

135

154

163

Apr.

214

238

172

154

137

120

135

154

192

250

.318

377

377

332

332

318

318

238

250

238

226

238

347

392

362

439

487

377

332

408

May.

455

487

503

487

487

503

471

408

392

455

439

408

347

304

290

304

318

332

377

377

276

263

250

263

290

304

347

362

439

520

455

June.

347

318

287

287

287

274

274

274

260

260

260

248

236

224

212

236

224

224

236

212

201

224

201

258

178

168

151

142

168

142

July.

127

134

127

132

132

124

95

109

116

116

112

121

132

258

233

207

158

140

132

123

126

115

108

105

100

96

105

93

91

91

87

Aug.

87

87

83

83

83

86

89

82

79

79

79

79

89

82

79

79

86

82

77

73

77

77

73

73

73

7b

69

67

67

67

67

Sept.

65

58

58

62

62

65

67

69

69

77

69

67

67

67

67

67

65

58

62

62

62

65

73

73

69

73

69

67

67

73

JNOTE. Braced figure shows estimated mean discharge for period indicated.
SNAKE RIVER BASIIST. 81

Monthly discharge o/Blackfoot River above reservoir, near Henry, Idaho, for the year ending

Sept. SO, 1918.

[Drainage area, 360 square miles.]

Month.

March 21-31. . ............................................

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

Discharge in second- feet.

Maximum.

124 

137 

129 

99 

163 

487 

520 

347 

258 

89 

77

Minimum.

86 

67

82 

91 

120 

250 

142 

87 

67 

58

Mean.

102 

92.2 

90.0 

89.6 

121 

282 

384 

234 

127 

78.3 

66.5

Run-off in 

acre-feet.

6,270 

5,490 

5,530 

889 

2,640 

. 16, 800 

23.600 

13,900 

7,810 

4,810 

3,960

BLACKFOOT-MARSH RESERVOIR NEAR HENRY, IDAHO.

LOCATION. In sec. 12, T. 5 S., R. 40E., 12 miles northwest of Henry, Bannock County.

RECORDS AVAILABLE. January 1, 1912, to September 30, 1918.

GAGE. Vertical staff near spillway at right end of dam; read by B. B. Reynolds. 

Prior to April 23, 1918, all gage readings were made on gage 51.6 feet higher in 

elevation. All gage readings subsequent to April 23, 1918, are corrected to agree 

with former datum. To reduce gage heights to elevation above sea level add 

6048.40 feet.

EXTREMES OF STAGE. Maximum stage recorded during year, 61.00 feet May 26 and 

27; minimum stage, 52.00 feet October 10.

1912-1918: Maximum stage recorded, 68.60 feet June 27-30, 1912; minimum 

stage, 42.02 feet December 14, 1916.

ACCURACY. Gage affected by ice and gage heights prior to April 18 may be a maximum of about 1.70 feet in error in reference to correct datum.

COOPERATION. Gage-height record furnished by United States Indian Service.
82 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily gage height, in feet, of Blackfoot-Marsh reservoir near Henry, Idaho, for the year

ending Sept. 30,1918.

Day.

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

2..............

3.............. 

4..............

6..............

7..............

8..............

9..............

10..............

11..............

12..............

13..............

14..............

15.............

16..............

17..............

18..............

19..............

20..............

21.............. 

22............ . 

23..............

24. .............

25. .............

26. .............

27..............

28..............

29.............. 

30.............. 

31..............

Oct.

52.55 

52.44

52.39

52.24

52.19

52.14

52.02

52.00

52.02

52.04

52.06

52.12

52.14

52.15

52.16 

53.20

52.22 

52.24

52.28

CO Qf\

52.32

52.34

52.36

52.38 

52.40 

52.40

Nov.

52.42 

52.43

52.44 

52.45

52.46

52.47

52.48

52.49

52.52

52.54

52.54

52.56

52.60

52.65

52.70

52.76

52.81 

52.84

52.86 

52.88 

52.90

52.94

CO Qfi

52.98

53.00

53.02 

53.04

Dec.

53. 06 

53.08

53. 16

53.30

53.36

53.38

53.40

53.43

CO AC

53.52

53.54

53.56

CO KO

53.72 

53.76

53.83 

53.90 

53.95

C.O QQ

54.07

54.10

54 12

54.14 

54.16 

54.18

Jan.

54.20 

54.22

54.24 

54.26

54.28

54.30

54.32

54.34

54.36

KA QQ

54.40

54 42

54 44

54 46

54.48

54.51

54 54

54.60 

54.64

54.68 

54.71 

54 74

54.78

54.81

54.86

54.88

54 91

54.95 

54.99 

55.02

Feb.

55.05

55.12

EC 19

EC 14

55.16

cc 99

55.24

55.27

55.30

55.32

tt 34

EC 04

55 35

55.35

55.36

55.36 

55.36

55.36 

55.37

CC Q7

ec 07

55. 38

5

t: OQ

55.38

Mar.

55.39

55.41

cc 49

K.K. 43

EC A A

EC 4C

55.46

cc 47

55.50

55 52

cc C4

55.56

55.67

cc 79

55.88 

55.95

55.99 

56.04 

56.08

56.14

56 22

56.26

56.31

56.36 

56.41 

56.45

Apr.

56.49

56.62 

56.67

56.76

56.81

56.86

56.91

56.96

57.02

c,7 19

K.7 91

57.30

C7 OQ

57.49

c.7 R4

K.7 7*.

'59.' 85"

CQ Q4

60.02

cn no

Cf) 1Q

Aft 9Q

60 38 

60.48

May.

60.54 

60.58

60.61 

60.64

60.68

60.70

60.72

60.74

fin 74

60.76

60.77

60.78

60.84

60.86

fin ss

60 90

60.91

60.92 

60.94

60.96 

60.96 

fin os

fin QQ

61.00

61.00

Art QQ

60.99 

60.98 

60.96

June.

60.94 

60.92

60.90 

60.86

60.83

60.82

60.80

60.78

60.76

60.73

60.69

60 64

60 60

60.57

60.52

60.46

60.40 

60.34

60.31 

60.27 

60.28

60.24

60 19

60.12

60.06

CQ QQ

59.90 

59.81

July.

59.74 

59.69

59.64 

59.59

59.54

59.48

59.42

<;o °.4

59.27

59.22

59.14

59.08

59.02

58.88

58.74

58.70

58.62 

58.56

58.48 

58.44

58.28

58.04

57.92

57.82

57.72 

57.62 

57.52

Aug.

57.42 

57.32

57.22 

57.12

57.02

56.92

56.82

56.72

56.58

56.49

56.38

56.28

56.16

56.07

55.96

55.77

55.68

55.57 

55.47

55.38 

55.28 

55.18

55.08

54.98

54.90

54.82

54.74

54.69 

54.65 

54.61

Sept.

54.58 

54.56

54.54 

54.52

54.50

54.50

54.49

54.48

54.47

54.46

54.45

54.45

54.45

54.45

54.44

54.44

54.44

54.44

54.45 

54.44

54.45 

54.44 

54.42

54.42

54.41

54.40

54.39

54.39

54.38 

54.38

NOTE. Gage torn out by ice Apr. 18; reset Apr. 23.

BLACKFOOT RIVER NEAR HENRY, IDAHO.

LOCATION. In sec. 11, T. 5 S., R. 40 E., 200 feet below wagon bridge at Rocky-ford 

crossing, 1 mile below Blackfoot-Marsh dam of United States Indian Service, and 

12 miles northwest of Henry, Bannock County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 15, 1908, to September 30, 1918.

GAGE. Friez water-stage recorder installed September 18, 1912, on left bank; inspected by B. B. Reynolds. Prior to September 18, 1912, gage was vertical staff 

located a few feet downstream from present gage. Datum of original gage lowered 

0.11 foot between July 15, 1908, and May 25, 1912; datum of present gage is same 

as original gage on May 25, 1912.

DISCHARGE MEASUREMENTS. Made from cable 600 feet above gage or by wading.

CHANNEL AND CONTROL. Bed composed of lava rock, boulders, and gravel; fairly 

permanent. Control affected at times by growth of moss.

EXTREMES OF DISCHARGE. Maximum stage during year from water-stage recorder, 

3.02 feet June 22 (discharge, 760 second-feet); minimum stage, 0.95 foot April 24 

to May 6 (discharge, 23 second-feet).

1908-1918: Maximum stage recorded, 4.15 feet May 14, 1909 (discharge, 1,640 

second-feet); minimum stage recorded, 0.50 foot May 11 and 12, 1917 (discharge, 1 second-foot).

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. Few small diversions for irrigation above station.

REGULATION. Flow entirely regulated by storage in reservoir, which has a capacity 

of 312,000 acre-feet.
SNAKE RIVER BASIN. 83

AcruiiACY. Stage-discharge relation affected by growth of moss. Two well-defined 

rating curves used, one October 1 to 8, the other October 9 to June 25; shiftingcontrol method used June 26 to August 7. Operation of water-stage recorder 

satisfactory during periods October 1-8 and June 8-30; staff gage read to hundredths twice daily during remaining periods. Daily discharge ascertained by 

applying mean daily gage height to rating table except as noted in footnote to 

daily-discharge table. Records good, except from July to September for which 

they are fair.

Discharge measurements of Blackfoot River near Henry, Idaho, during the year ending

Sept. 30, 1918.

Dale

Oct. 13

Apr. 22

23

Made by 

C. F. Elford.... ........

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

Gage 

height.

Feet.

1.25

2.10

Discharge.

Sec.-ft. 

i 33

7E q

342

Date.

Apr. 23

Aug. 7

Made by 

C. F. Elford............

G. C. Baldwin.........

Gage 

height.

Feet. 

1 92

2.50

2.96

Discharge.

Sec.-ft. 

270

515

634

Daily discharge, in second-feet, of Blackfoot River near Henry, Idaho, for the year ending

Sept. SO, 1918.

Day.

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

2..............

3..............

4..............

6..............

7..............

8..............

9

10..............

11..............

12..............

13..............

14..............

15..............

16..............

17..............

18..............

1Q

20..............

21..............

22..............

23..............

24..............

25... ..........

26. .............

27..............

28. .............

29..............

30. .............

Q1

Oct.

522

522

522

522

522

522

522

522

404

321

321

207

184

227

224

133

70

73

73

73

73

73

73

73

73

70

73

73

73

Nov.

73

73

73

73

73

79

73

73

73

73

73

73

73

73

73

70

73

73

70

73

73

73

73

73

73

73

73

73

73

73

Dec.

73

73

73

73

73

70

73

73

73

73

73

73

70

73

73

70

73

7370

70

70

73

73

73

73

70

73

73

7370

70

Jan.

73

73

73

73

70

70

73

73

70

73

73

73

70

73

73

70

73

73

70

70

70

73

73

73

73

73

73

70

73

73

73

Feb.

73

73

73

73

73

73

73

7O

73

73

73

73

73

73

73

73

73

7O

73

73

73

73

73

73

73

73

73

Mar.

73

73

73

73

73

73

73

73

73

73

73

73

73

73

73

73

73

73

70

73

73

73

73

73

73

73

73

73

73

73

73

Apr.

73

73

73

73

73

73

73

73

73

73

73

73

73

73

73

70

73

73

73

73

73

73

123

23

23

23

23

23

23

23

May.

23

23

23

23

23

23

156

156

156

156

156

301

301

301

301

301

301

470

470

470

470

470

515

515

515

515

515

515

515

515

515

June.

515

515

515

515

515

515

515

515

515

515

584

607

607

607

607

607

607

630

702

750

750

750

750

750

726

721

721

721

721

697

July.

673

673

673

673

673

673

673

673

673

668

668

668

668

668

668

668

668

668

668

668

668

668

668

664

664

640

640

640

640

640

640

Aug.

640

640

640

640

640

640

635

630

^t*t>

400

Sept.

O* V

320

> 185

85

NOTE. Braced figures show mean discharge for periods indicated; estimated by comparison witli flow 

at station near Shelley.
84 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge ofBlackfoot River near Henry, Idaho, for the year ending Sept. 30, 1918.

Month.

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

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

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

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

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

Mav. ...................................... ........

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

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

Discharge in second-feet.

Maximum.

522 

73 

73 

73 

73 

73 

123 

515 

750 

673 

640

750

Minimum.

73 

73 

73 

73 

73 

73 

23 

23 

515 

640

23

Mean.

242 

73.0 

73.0 

73.0 

73.0 

73.0 

63.0 

313 

626 

664 

565 

256

259

Run-off in 

acre-feet .

14,900 

4,340 

4,490 

4,490 

4,050 

4,490 

3,750 

19,200 

37,200 

40,800 

34,700 

15,200

188,000

BLACKFOOT RIVER NEAR SHELLEY, IDAHO.

LOCATION. In sec. 7, T. 2 S., R. 38 E., Bingham County, 1J miles above mouth of 

canyon, 3 miles above N. A. Just's ranch, 10 miles southeast of Shelley, and 18 

miles northeast of Blackfoot. Below all important tributaries.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. June 26, 1909, to September 30, 1918. From April 17, 1903, 

to December 31, 1909, records were obtained near Presto, about 5 miles below 

site of present station. No tributaries enter between the two sites, but during 

the irrigation season several ditches divert probably 50 second-feet.

GAGE. Friez water-stage recorder on right bank; inspected by Rufus E. Reid.

DISCHARGE MEASUREMENTS. Made by wading or from cable at gage.

CHANNEL AND CONTROL. Bed rocky and rough. One channel at all stages. Control somewhat shifting.

EXTREMES or DISCHARGE. Maximum stage recorded during the year, 5.37 feet at 

11 p. m. June 20 (discharge, 986 second-feet); minimum stage recorded, 3.38 feet 

at 11 p. m. December 11 (discharge, 87 second-feet).

1909-1918: Maximum stage recorded, 5.80 feet at 11.45 p. m. April 1, 1913 

(discharge, 1,370 second-feet); minimum stage, 3.00 feet at 12.30 p. m. January 

6, 1917 (discharge estimated less than 45 second-feet).

ICE. Stage-discharge relation seriously affected by ice.

DIVERSIONS. No noteworthy diversions are made from river or tributaries above 

station.

HEGULATION. Flow regulated largely by storage in the Blackfoot-Marsh reservoir of 

the United States Indian Service, about 40 miles upstream.

ACCURACY. Stage-discharge relation permanent except as affected by ice. Rating 

curve well defined for open-channel conditions. Operation of water-stage recorder satisfactory except during winter when occasional staff observations were 

obtained. Daily discharge ascertained by applying to rating table mean daily 

gage height obtained by inspecting recorder graph. Records good.

Discharge measurements of Blackfoot River near Shelley, Idaho, during the year ending

Sept. 30,1918.

Date.

Oct. 19

Mar. 4

12

Made by 

C.F.Elford.. ..........

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

Gage 

height.

Feet. 

3.68

3 4.7

3.56

Discharge.

Sec.-ft. 

173

125

136

Date.

Apr. 16

Made by 

C. F.FL'ord............

Gage 

height.

Feet. 

3.92

5.14

4

00

Discharge.

Sec.-ft. 

255

887

680
SNAKE RIVER BASIN. 85

Daily discharge, in second-feet, of Blackfoot River near Shelley, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9..............

10..............

11..............

12..............

13..............

14..............

16..............

17..............

18..............

19..............

20..............

21..............

22..............

23..............

24..............

25..............

26. .............

27..............

28..............

29..............

30..............

31..............

Oct.

613

608

603

603

603

603

603

603

569

424

420

384

228

225

303

308

303

295

178

161

158

148

148

148

145

145

145

145

171

151

14^ 1

Nov.

145

145

145

148

148

145

148

148

148

145

148

148

148

1 JO

148

148

148

145

145

142

145

148

145

145

151

142

148

148

Dec.

158

139

121

164

139

127

113

118

130

113

95

124

136

130

127

136

133

133

133

130

130

127

136

133

133

136

145

155

1OQ

Jan.

130

127

127

127

127

118

136

133

127

127

133

113

110

121

130

133

133

136

133

Feb.

121

110

110

113

108

126

151

142

133

133

124

118

136

120

Mar.

120

121

110

113

102

108

158

121

108

108

127

127

121

110

110

115

121 1'27

124

130

130

136

139

145

158

171

195

199

210

228

251

Apr.

267

263

213

199

195

192

199

217

259

308

299

291

312

320

283

255

240

228

225

217

221

236

291

259

225

213

206

188

185

May.

188

188

188

192

195

228

299

295

308

303

295

329

350

380

460

574

584

598

618

608

598

598

643

653

663

679

694

679

658

658

June.

653

653

648

643

638

638

638

633

633

623

643

710

710

710

715

726

720

715

764

883

883

883

913

883

854.

854

854

825

825

825

July.

797

769

769

769

797

769

764

764

764

758

758

753

753

769

758

747

742

737

731

731

742

747

753

758

769

"797

797

797

797

797

797

Aug.

769

769

769

769

764

758

753

747

731

710

699

689

689

699

731

699

684

673

673

673

658

545

540

540

540

535

530

474

451

446

446

Sept.

442

438

4.S8

433

433

428

424

428

433

393

380

376

376

376

376

324

255

244

244

240

240

244

244

244

244

244

244

181

142

139

NOTE. Stage-discharge relation aflected by ice Jan. 9-15; Jan. 26 to Feb. 4; Feb. 14-22; discharge estimated from observer's notes, weather records, and record at station below Blackfoot-Marsh reservoir as 

follows: Jan. 9-15, 110 second-feet; Jan. 27-31, 115 second-feet; Feb. 1-4, 105 second-feet; Feb. 14-22, 120 

second-feet.

Monthly discharge of Blackfoot River near Shelley, Idaho, for the year ending Sept. 30,1918.

Month.

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

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

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

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

Discharge in second-feet.

Maximum.

613 

151 

164 

136

155 

251 

320 

694 

913 

797 

769 

442

913

Minimum.

145 

139 

95

162 

181 

188 

623 

731 

446 

139

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

Mean.

332 

146 

133 

121 

121 

140 

240 

463 

743 

766 

650 

322

350

Run-off in 

acre-feet.

20,400 

8,690 

8.180 

7,440 

6,720 

8,610 

14,300 

28,500 

44,200 

47,100 

40, 000 

19,200

253,000

BLACKFOOT RIVER NEAR BLACKFOOT, IDAHO.

LOCATION. In sec. 27, T. 3 S., R. 34 E., Bingham County, at old Jarvis ranch, 2 miles 

above junction of Blackfoot and Snake rivers and 8 miles southwest of Blackfoot.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. July 27, 1913, to September 30, 1918.

OAGE. Inclined staff on right bank half a mile south of the Jarvis ranch house; 

read by Oliver I;. Kofoed.
86 SURFACE WATEK SUPPLY, 1918, PAET XII B.

DISCHARGE MEASUREMENTS. Made by wading or from cable near gage.

CHANNEL AND CONTROL. Bed composed of gravel. Control presumably of the same 

material; fairly permanent. One channel at all stages. Banks covered with 

heavy growth of brush and willows which may affect stage-discharge relation at 

high stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, in excess of 9.3feet 

during period June 15 -18 when stage-discharge relation was affected by overflow 

and backwater from Snake River. Maximum discharge attributable to Blackfoot River probably 544 second-feet noted September 16 at gage height of 8.1 

feet; minimum stage probably occurred during period of no record when water 

surface was below gage (estimated discharge, 18 second-feet).

1913-1918: Maximum discharge recorded, 673 second-feet September 21-22, 

1914; minimum stage as above noted.

ICE. No records obtained during winter.

DIVERSIONS. Principal diversions above gage are the Fort Hall canals near Blackfoot, 

but several smaller diversions are made near Blackfoot.

REGULATION. Flow regulated by storage in the Blackfoot-Marsh reservoir of the 

United States Indian Service.

ACCURACY. Stage-discharge relation permanent during period of record. Rating 

curve fairly well defined. Gage read to half-tenths once daily. Daily discharge 

ascertained by applying daily gage height to rating table. Records fair.

Discharge measurements of Blackfoot River near Blackfoot, Idaho, during the year ending

Sept. 30, 1918.

Date.

May 21

July 9

Aug. 2

Made by 

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

Gage 

height.

Feet.

6 19

A. 49

Discharge.

Sec.-ft.

261

18.3

Date. Made by 

G. C. Baldwin. ........

Gage 

height.

Feet. 

5.71

6,33

Discharge.

Sec.-ft. 

168

273

Daily discharge, in second-feet, of Blackfoot River near Blackfoot, Idaho, for the year

ending Sept. 30, 1918.

Day.

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

2.............

3.............

5.............

6.............

7.............

8.............

9.............

10.............

11.............

12.............

13.............

14.............

15.............

May.

434

389

374

315

287

259

259

259

259

245

287

245

245

198

166

June.

374

374

374

359

245

217

102

73

73

63

43

18

July.

315

259

259

259

287

315

245

217

259

301

315

315

07,1

480

Aug.

90

18

23

109

109

109

7O

84

73

7^

78

198

166

100

Sept.

73

73

68 100

141

154

166

245

259

970

287

287

287

315

344

Day.

16.............

17.............

18.............

19.............

20.............

21.............

22. ............

23.............

24.............

25. ............

26.............

27.............

28.............

29.............

30.............

31.............

May.

198

198

232

217

198

198

96

96

109

198

315

389

389

389

359

June.

329 *3AA

374

July.

496

496

464

329

344

315

301

245

224

208

232

78

73

78

63

23

Aug.

359

434

496

496

449

389

374

344

344

301

259

217

141

208

73

84

Sept.

496

374

301

198

84

90

102

96

198

154

141

123

141

141

NOTE. Stage-discharge relation, June 13-27, affected by overflow and backwater from Snake River; 

data insufficient for determination of discharge. Water reported as below gage about 0.10 foot on June 12.
SKAKE RIVER BASIN. 87.

Monthly discharge of Black/oot River near Blackfoot, Idaho, for the year ending Sept. 30,

1918.

Month.

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

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

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

Discharge in second-feet.

Maximum.

434

496 

496 

544

Minimum.

96 

23 

18 

68

Mean.

255 

273 

210 

210

Run-off in 

acre-feet.

15,700 

16,800 

12.900 

12,500

LITTLE BLACKFOOT RIVER AT HENRY, IDAHO.

LOCATION. In sec. 10, T. 6 S.. R. 42 E., on Skinner's ranch at Henry, Bannock 

County, a short distance above flow line of Blackfoot-Marsh reservoir.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. March 24, 1914, to September 30, 1918.

GAGE. Vertical staff fastened to log across stream just below Skinner's barn; read by 

Mrs. W. J. Chester.

DISCHARGE MEASUREMENTS. Made by wading.

CHANNEL AND CONTROL. Bed composed of rock overlain with sand and gravel. 

Control is rock crest of 8-foot falls; affected by growth of aquatic plants.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 2.53 feet at 5 p. m. 

April 13 (discharge, 138 second-feet); minimum discharge estimated at 11 secondfeet from August 16 to 20 and from September 28 to 30.

1914-1918: Maximum stage recorded, 3.5 feet at 8 p. m. April 19, 1914 (discharge, determined from extension of rating curve, 292 second-feet); minimum. 

stage, 1.20 feet March 24, April 1 and 2, and July 4 at 6 p. m. to July 7,1914 (minimum discharge determined by indirect method for shifting control, 7 second-feet 

on July 5, 6, and 7, 1914).

ICE. Stage-discharge relation not affected by ice on account of warm springs.

DIVERSIONS. One small diversion above station and one below.

REGULATION. No artificial regulation.

ACCURACY. Stage-discharge relation affected by growth of aquatic plants. Standard 

rating curve fairly well denned. Gage read to hundredths twice daily. Daily 

discharge ascertained by applying mean daily gage height to rating table from 

October 26 to May 14; shifting-control method used during remainder of year. 

Records fair during summer; good for remainder of year.

Discharge measurements of Little Blackfoot River at Henry, Idaho, during the year ending

Sept. 30, 1918.

Date.

Oct. 12

Mar. 7

Apr. 19

Made by 

T.R. Newell..........

C. F. Elford...........

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

Gage 

height.

Feet. 

1.52

1 9S

1.45

Discharge.

See.-ft. 

21.0

14.3

24.6

Date. Made by Gage 

height.

Feet. 

1.95

1 64

Discharge.

Sec.-ft. 

34.0
SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Little Blackfoot River at Henry, Idaho, for the year ending'

Sept. 30, 1918.

Day.

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

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9.

10..... ..

11..............

12..............

13..............

14..............

15..............

16..............

17..............

18..............

19..............

20..............

21..............

22....... .....

23

24..............

25..............

26. .............

27..............

28..............

29....... ...

30..............

31..............

Oct.

17

18

18

17

16

17

18

18

19

19

19

20

20

19

17

16

16

18

18

19

19

20

20

21

20

20

20

19

19

Nov.

19

19

19

19

1Q

19

19

1Q

19

19

19

20

19

19

19

19

on

20

20

20

20

20

20

20

91

91

91

91

22

.......

"Dec.

22

22

91

9fl

20

20

20

19

18

18

18

18

16

16

16

16

16

16

16

16

16

16

16

1 C

1 C

Jan.

16

16

16

16

16

16

16

16

16

16

14

14

14

14

14

16

Feb.

14

14

14

i ^

14

14

14

14

14

1 3

13

14

Mar.

14

14

14

14

14

14

14

14

14

14

14

14

14

16

19

21

20

21

^pr.

26

26

25

00

22

21

on

07

49

52

62

45

33

97

26

25

28

30

30

289>;

27

28

28

28

28

28

May.

26

30

00

36

07

36

35

or

37

40

41

QC

35

35

35

36

31

28

28

28

28

07

33

28

28

June.

25

25

25

25

25

25

24

24

25

24

24

23

23

27

27

28

28

28

28

28

28

25

25

25

23

25

24

23

24

July.

23

23

Oc

25

24

23

oq

22

22

22

21

22

22

22

20

20

22

21

21

21

21

18

18

19

21

17

18

17

17

Aug. Sept.

18 13

18 14

16 14

16 15

16 15

14 14

14 14

14 12

13 12

13 12

13 12

11 i 13

11 , 13

11 12

11 ! 13

11 13

13 i 12

13 i 12

14 13

13 12

13 12

13 12

13 12

14 11

14 11

14 11

14 .......

Monthly discharge of Little Blackfoot River at Henry, Idaho, for the year ending Sept. 30,

1918.

Month.

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

November ......

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

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

.^pril..... ............................ .... ............

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

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

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

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

Discharge in second-feet.

Maximum.

21

22 

22 

16 

15 

21 

136 

41 

28 

25 

18 

15

136

Minimum.

16 

19 

16 

14 

13 

14 

20 

26 

23 

17 

11 

11

11

Mean.

18.4 

19.7 

17.7 

14.8 

13.9 

14.9 

36.3 

33.2 

25.3 

20.8 

14.1 

12.8

20.2

Run-off in 

acre-feet .

1,130 

1,170 

1,090 

910 

772 

916 

2,160 

2,040 

1,510 

1,280 

867 

762

14,600

MEADOW CREEK NEAR HENRY, IDAHO.

LOCATION. In sec. 3, T. 6 S., R. 42 E., half a mile above flow line of Blackfoot-Marsh 

reservoir, three-quarters of a mile below Goose Lake or Pelican Slough, and 1£ 

miles northeast of Henry, Bannock County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. April 17, 1914, to September 30, 1918.

GAGE. Stevens water-stage recorder installed June 27, 1914, on left bank, referred to 

vertical staff at same location and datum.
SNAKE RIVER BASIN. 89

DISCHARGE MEASUREMENTS. Made by wading or from cable at gage.

CHANNEL AND CONTROL. Bed composed of rock and gravel; somewhat shifting. 

No well-defined control. At high stages partial control may be heavy growth of 

brush on banks.

EXTREMES OF DISCHARGE. Maximum stage during year from water-stage recorder. 

3.40 feet at 3 p. m., April 17 (discharge, 114 second-feet); minimum stage, 1.20 

feet at 2 a. m. September 11 (discharge, about 3 second-feet).

1914-1918: Maximum stage recorded, 4.81 feet May 17, 1917 (discharge, 424 

second-feet); minimum stage, 1.06 feet July 17, 1916 (discharge, about 0.4 secondfoot).

ICE. Stage-discharge relation seriously affected by ice.

DIVERSIONS. None above gage.

KEGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Two fairly well denned rating 

curves used, one October 1 to November 15, April 17 to May 25, and July 2 to 

September 30, the other from May 30 to June 25. Daily discharge ascertained 

by applying to rating table mean daily gage height obtained by inspecting recorder 

graph and by indirect method for shifting control. Eecords fair.

Discharge measurements of Meadow Creek near Henry, Idaho, during the year ending Sept.

30, 1918.

Date.

Apr. 18

Made by 

C. F. Elford.. ..........

Gage 

height.

Feet. 

1.93

3.24

Discharge.

 

Sec.-ft. 

16.6

95.5

Date.

May 30

Made by 

R. B. Kilgore..........

G. C. Baldwin.........

Gage 

height.

Feet. 

2.79

1.74

Discharge.

Sec.-ft. 

51.0

12.1

Daily discharge, in second-feet, of Meadow Creek near Henry, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2........ ..... .... .... .....

3....................................

4....................................

5....................................

6....................................

7......... ..........................

8....................................

9......... ......... ...... ..... ..

10.............................. ....

11....................................

12........ .. .

[3................. ...... ...... ...

L4.... ..................... ..........

L5.. ...........

16.............. ...... ...

7............................... ....

8....................................

9.. ..

SO.......

a......

!2........ . . .

!3.......

14.......... .. .

15. ................ ...

16........ .... ... ....

17. .....

18. .....

9.. .

>0.. .

11. . .

1

Oct.

14

14

14

14

14

14

14

15

15

16

17

17

17

17

17

17

17

17

18

17

17

17

17

18

18

17

17

17

17

17

Nov.

17

18

18

18

18

18

18

18

18

18

18

18

18

18

19

........

Apr.

110

96

89

83

79

79

89

100

106

108

107

100

89

81

May.

77

75

71

70

68

67

64

62

60

60

62

61

56

51

49

47

47

47

47

47

45

42

40

40

39

40

40

46

51

51

48

June.

46

42

38

34

32

29

27

25

23

21

18

16

14

13

12

11

10

11

11

11

11

12

11

12

12

12

11

10

8

8

July.

8

8

8

8

7

7

7

7

8

g

10

13

13

12

12

12

12

19

20

16

14

12

12

12

12

12

12

12

11

Aug.

12

13

12

12

12

12

12

12

12

12

12

12

11

12

13

14

14

14

13

13

12

12

12

11

11

11

11

10

9

9

9

Sept.

9

9

9

&

8

8

9

9

9

5

5'

5

6

6

5

6

5

5

5

6

6

6

7

7

7

7

7

7

7

7
90 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Meadow Creek near Henry, Idaho, for the year ending Sept. 30, 1918.

Month.

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

April 17-30................... . .

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

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

Discharge in second-feet.

Maximum .

18 

19 

110 

77 

46 

20 

14 

9

Minimum.

14 

17 

79 

39 

8 

6 

9 

5

Mean.

16.2 

18.0 

94.0 

53.9 

18.4 

10.9 

11.8 

6.8

Run-off Ln 

acre-feet.

996 

536 

2,610 

3,310 

1,090 

670 

726 

406

IDAHO (GOVERNMENT) CANAL NEAR FIRTH, IDAHO.

LOCATION. In sec. 13, T. 2 S., R. 36 E., Bingham County, 100 feet above double 

metal flume by which canal crosses Eastern Idaho Slough, one-fourth of a mile 

below nearest highway bridge, 1^ miles below point where Sand Creek crosses 

canal, and about 5 miles southeast of Firth.

RECORDS AVAILABLE. March 29, 1914, to September 30, 1918.

GAGE. Friez water-stage recorder on left bank; inspected by J. A. Vaughn.

DISCHARGE MEASUREMENTS. Made by wading or from one of the highway bridges 

above.

CHANNEL AND CONTROL. Bed composed of silt, sand, and fine gravel; probably 

shifts slightly but flume heading just below furnishes a permanent control for high 

stages. Point of zero flow at about 0.5 to 0.6 foot gage height.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.45 feet in the 

morning September 6 (discharge, 430 second-feet); zero discharge reported March 22. 

1914-1918: Maximum stage recorded, 5.45 feet in the morning September 6,1918 

(discharge, 430 second-feet); minimum discharge, no flow, on several dates.

ICE. Stage-discharge relation seriously affected by ice. Data inadequate for determination of winter discharge.

DIVERSIONS . None.

REGULATION. Flow partly regulated by Snake River headgates, about 12 miles above, 

and partly by gates at the Sand Creek crossing, about 1^ miles above.

ACCURACY. Stage-discharge relation not permanent. Standard rating curve well 

defined. Several parallel curves used. Operation of water-stage recorder satisfactory except for period of ice effect when the staff gage was read daily. Daily 

discharge ascertained by applying to rating table mean daily gage height obtained 

by inspecting recorder graph, except as noted in footnote to table of daily discharge. Records good for periods for which daily discharge was computed.

Idaho (Government) canal diverts water from left bank of Snake River in sec. 31, 

T. 1 N., R. 37 E., and discharges into Blackfoot River in sec. 24, T. 2 S., R. 36 E. The 

canal receives water from Sand Creek just above this station.

Discharge measurements of Idaho (Government} canal near Firth, Idaho, during the year

ending Sept. 30, 1918.

Date.

21

Jan. 14

Mar. 3

13

Made by 

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

G.C.Baldwin.........

C.F.Elford... .........

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

Gage 

height.

Feet.

2

OC

a. 71

al.30

« 1.70

Discharge.

Sec.-ft. 

69 1

64.7

.05

1.0

9.0

Date.

16

May 19

June 19

29

Made by 

C.F.Elford............

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

Newell and Baldwin. . .

R. B. Kilgore..........

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

Gage 

height.

Feet. 

3.29

3.23

2.37

4.18

4.20

Discharge.

Sec.-ft. 

180

169

81.9

233

270

Stage-discharge relation affected by ice.
SNAKE RIVER BASIN. 91

Daily discharge, in second-feet, of Idaho (Government) canal near Firth, Idaho, for the year

ending Sept. 30, 1918.

Day.

1. ........ .

2..............

3............... ..

4..... ...

5...............

6..... .........

7.................. .

8.....................

9.......... . ..

10........... ...... .

11.......... ....

12 .....

13................... .

14.......... ... .

15......... ...........

16....................

17.....................

18................... .

19.....................

20.............. ....

21........ ............

22..... .. . .

23.....................

24..................

25....................

26 ...................

27 .....................

28....................

29. ....................

31.........' ........ '

Oct.

57

69

69

54

°.°.

1 37

41

43

43

42

48

54

66

67

65

67

61

49

51

51

46

64

75

70

70

Nov.

70

53

56°.s

19

21

16

19

19

21

26

28

20

22

22

24

24

25

22

17

22

28

27

28

27

30

30

30

Dec.

33

12

50

19

V)

39°.s

26

20

24

18

14

15

15

16

19

20

18

20

27

Jan.

27

21

20

18

20

18

21

16

10

Mar.

n

14

7

23

0

21

21

24

21

36

29

34

34

115

Apr.

29

on

21

30

45

co

48

36

36

55

92

117

127

144

168

154

138

113

103

116

135

161

183

205

233

243

257

257

233

May.

227

233

OOQ

oqn

OOQ

205

205

IQd

183

172

161

129

123

97

80

87

60

54

82

145

205

293

287

257

239

227

227

June.

239

94.^

251

222

178

156

156

188 1°.<;

70

178

188

205

210

215

229

224

229

265

308

353

372

398

353

275

263

305

293

257

July.

245

263

281

OC7

OOQ

263

257

9IV1

251

257

281

281

323

347

347

275

269

227

188

200

166

188

210

194

194

194

227

251

216

216

Aug.

216

941

281

263

997

1Q4.

216

000

263

245

233

227

205

°.17

311

299

257

227

222

251

275

257

251

239

216

194

205

239

Sept.

269

9QQ

335

^11

. 411

OQQ

070

QAQ

324

9QQ

275

251

971

269

239

000

1S8

233

1 222

227

239

257

257

257

257

257

NOTE. Discharge, Oct. 7-12, Oct. 30 to Nov. 2 and Mar. 31 to Apr. 5, estimated. Stage-discharge relation 

affected by ice Dec. 2-11; Jan. 10 to Mar. 17; discharge, Dec. 2-11, estimated from observer's notes and ternperature record at 12 second-feet. Data inadequate for determination of discharge Jan. 10 to Mar. 17 except 

for days when current-meter measurements were made. Sept. 10-13 interpolated.

Monthly discharge of Idaho (Government) canal near Firth, Idaho, for the year ending

Sept. 30, 1918.

Discharge in second-feet.

Month.

October.....

November.. 

December... 

January 1-9. 

March 18-31. 

April........

May.........

June........

July.........

August......

September..

i

Maximum.

1 75

1 70

50

27

115

257

293

398

347

347

411

Minimum.

16

2

13

0

21

54

70

166

194

188

Mean.

52.0

28.6

19.1

19.3

27.9

124

183

237

245

245

280

Run-off in

acre-feet.

3,200

1,700

1,170

3io

775

7,380

11,300

14, 100

15, 100

15, 100

16, 700

82374 22 WSP 483 7
92 SURFACE WATER SUPPLY, 1918, PART XII B.

SAND CREEK NEAR FIRTH, IDAHO.

LOCATION. In T. 2 S., R. 37 E., Bingham County, 400 feet downstream from point

where Idaho (Government) canal crosses creek and 4 miles east of Firth. 

RECORDS AVAILABLE. December 21, 1916, to September 30, 1918. 

GAGE. Vertical staff on left bank on upstream side of highway bridge; read by

J. A. Vaughn. Prior to May 17,1917, vertical staff on left bank, 300 feet upstream. 

DISCHARGE MEASUREMENTS. Made by wading, from highway bridge, or from small

flume crossing creek 50 feet downstream. 

CHANNEL AND CONTROL. Bed composed of silt, sand, and fine gravel; probably not,

permanent. Banks clean but subject to overflow at high stages. Point of zero

flow, about 0.8 foot gage height. 

EXTREMES OF DISCHARGE.-*]916-1918: Maximum stage recorded, 3.95 feet at 11.30

a. m. July 15, 1918 (discharge, 288 second-feet); minimum flow zero on numerous

dates when headgates were closed. 

ICE. Stage-discharge relation seriously affecte'd by ice.

DIVERSIONS. None below Idaho (Government) canal crossing and above the station. 

REGULATION. The Idaho (Government) canal has been constructed directly across

the channel of the creek above the station. The canal receives the entire flow of

the creek as tributary and regulates the flow returned to creek channel below

by means of headgates. Above this point numerous canal systems utilize the

creek channel as a waste ditch. 

ACCURACY. Stage-discharge relation not permanent. Rating curve well defined for

open-water conditions; parallel curve used. Gage read to hundredths once daily.

Daily discharge ascertained by applying daily gage height to rating table

or by shifting-control method. Records fair.

Discharge measurements of Sand Creek near Firth, Idaho, during the year ending Sept. 30,

1918.

Date.

Oct. 21

Jan. 14

Mar. 3

13

Apr. 15

16

Made by 

C.F.Elford... .........

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

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

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

Gage 

height.

Feet,

O (\A

a 2.12

o2.70

2.85

2.78

Discharge.

Sec.-ft.

*7fi ^

43.0

25.2

AQ A

185

179

Date.

May 19

21

29

Aug. 15

Made by 

R. B.Kilgore... .......

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

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

Gage 

height.

Feet. 

2.49

.85

2.35

3.20

2.33

Discharge.

Sec.-ft. 

132

3.0

121

204

113

Stage-discharge relation affected by ice.
SNAKE KIVER BASIN. 93

Daily discharge, in second-feet, of Sand Creek near Firth, Idaho, for the year ending Sept.

30, 1918.

Day.

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

2.....................

3.....................

4.....................

5.....................

6.....................

7.....................

8.....................

9............ ..... .

10.....................

11.....................

12.....................

13.....................

14.....................

15.....................

16.....................

17.....................

18.....................

19.....................

20.....................

21 .....................

22.....................

23.....................

24.....................

25.....................

26.....................

27.....................

28.....................

29.....................

30.....................

31.....................

Oct.

100

100

98

81

81

89

81

89

95

91

89

90

93

90

90

89

85

72

75

72

74

75

75

72

70

70

76

81

71

72

63

Nov.

63

71

68

70

63

81

81

74

81

83

86

86

86

78

81

83

oo

86

100

86

91

90

89

89

88

92

89

86

88

92

Dec.

92

92

94

90

90

%92

72

72

90

88

68

63

90

94

92

90

85

85

65

67

67

65

67

68

72

70

70

67

65

67

68

Jan.

68

81

72

90

94

81

72

70

68

43

Mar.

25

48

86

88

86

Q=;

100

100

100

105

105

112

OK

Apr.

116

120

134

130

120

117

117

102

126

120

135

141

173

185

186

178

170

153

150

152

155

195

203

236

258

259

261

263

261

259

May.

213

209

219

213

208

206

203

196

195

191

188

187

186

182

175

132

132

131

131

142

105

102

88

14

0

122

278

253

234

225

219

June.

213

205

203

202

194

183

183

122

109

102

0

0

0

0

. 0

2

26

40

1

1

74-

142

275

282

249

216

92

127

220

146

July.

102

113

112

147

183

183

112

147

129

249

216

222

218

264

288

266

216

238

183

83

78

65

26

11

10

10

8

14

0

0

°

Aug.

0

0

0

39

183

157

142

33

8

6

112

112

110

102

132

184

216

205

183

174

122

122

132

129

132

134

132

112

122

117

112

Sept.

8

11

12

15

14

40

132

132

183

172

162

162

167

167

162

160

122

122

102

11

8

8

8

9

10

14

14

11

10

10

NOTE. Stage-discharge relation affected by ice Jan. 10 to Mar. 20; discharge estimated from observer's 

notes, temperature resord, and 3 current-meter measurements, as follows: Jan. 10-13, 42 second-feet; Jan. 

15-51, 30 sesond-feet; Feb. 1-28, 26 second-feet; Mar. 1-2, 22 second-feet; Mar. 4-12, 31 second-feet; and Mar. 

14-20, 65 second-feet.

Monthly discharge of Sand Creek near Firth, Idaho, for the year ending Sept. 30, 1918.

Month.

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

Discharge.in second-feet.

Maximum.

100 

100 

94 

94

112 

263 

278 

282 

288 

216 

183

288

Minimum.

63 

63 

63

102 

0 

0 

0 

0 

8

0

Mean.

82.2 

82.9 

78.0 

45.7 

26.0 

59.8 

172 

170 

120 

126 

112 

71.9

96.0

Run-off in 

acre-feet.

5,050 

4,930 

4,800 

2,810 

1,440 

3,680 

10,200 

10,500 

7,140 

7,750 

6,890 

4,280

69,500
94 SURFACE WATER SUPPLY, 1918, PART XII B.

FORT HALL UPPER CANAL NEAR BLACKFOOT, IDAHO.

LOCATION. In, sec, 13, T. 3 S., R. 35 E., Bingham County, 500 feet below headgates 

and 3£ miles southeast of Blackfoot.

RECORDS AVAILABLE. May 8, 1912, to September 30, 1918.

GAGE. Vertical staff in stilling well on right bank an,d sloping gage painted on right 

side about midway of concrete rating section. Bristol water-stage recorder used 

during 1912 and parts of 1913 and 1914. All gages set to same datum and at practically same site. Gage read by ditch rider and gate tender.

DISCHARGE MEASUREMENTS. Made by wading or from suspension footbridge at gage.

CHANNEL AND CONTROL. Concrete trapezoidal rating section.

EXTREMES OF DISCHARGE. 1912-1918: Maximum stage recorded, 4.90 feet at 7 a. m. 

July 14, 1918 (discharge, 431 second-feet); minimum flow occurs during winter, 

when a very small quantity of water is run for stock.

ICE. Observations discontinued during winter.

DIVERSIONS. None above station or for several miles below.

REGULATION. Flow regulated at headgates 500 feet above.

ACCURACY. Stage-discharge relation changed during winter. Rating curve well defined both before and after change for open-channel conditions. Gage read 

to hundredths twice daily. Daily discharge ascertained by applying mean daily 

gage height to rating table. Records good.

Fort Hall upper canal diverts water from left bank of Blackfoot River in sec. 12, 

T. 3 S., R. 35 E. Water is used for irrigation on Fort Hall Indian Reservation.

Discharge measurements of Fort Hall upper canal near Blackfoot, Idaho, during the year

ending Sept. 30, 1918.

Date.

Oct. 22

May 20

Made by 

T R Newell

Gage 

height.

Feet. 

0.25

3.50

4.73

Discharge.

Sec.-ft. 

0.1

264

410

Daily discharge, in second-feet, of Fort Hall upper canal near Blackfoot, Idaho, for the 

year ending Sept. 30, 1918.

Day.

1. ...

2. ...

3. ...

4. ...

5. ...

6. ...

7. ...

g

LO. ...

tl. ...

12. ...

q

14. ...

15. ...

Oct.

121

126

121

121

121

116

116

118

98

89

Of?

126

111

106

May.

174

183

178

181

1 79

194

218

238

244

June.

310

310

322

316

322

332

340

352

358

qi A

380

OQQ

399

July.

406

404

396

400

405

410

416

419

418

419

418

418

Aug

424

425

424

424

416

418

419

394

382

357

348

360

Sept.

352

352

360

336

344

344

334

324

328

322

 ?nn

276

262

136

Day.

16. ..

17. ..

18. ..

19. ..

20. ..

21.....

22 .....

23.....

24.....

25.....

26.....

27 .....

28.....

29.....

30.....

31 .....

Oct.

121

126

131

141

48

May.

262

250

248

256

262

272

272

284

296

304

310

308

310

308

310

310

June.

40S

408

396

402

408

411

408

411

411

412

408

404

408

411

406

July.

418

411

406

406

400

406

406

408

413

411

413

418

418

419

420

424

Aug.

370

322

334

329

322

324

312

299

296

310

340

347

334

346

353

356

Sept.

3

74

150

178

192

210

192

163

152

150

150

178

174

178

181

NOTE. Discharge Oct. 8-10 estimated on basis of gage heights furnished by C. H. Southworth, U. S. 

Indian Service engineer.
SNAKE KIVBE BASIN. 95

Monthly discharge of Fort Hall upper canal near Blackfoot, Idaho, for the year ending

Sept. 30, 1918.

Month.

October 1-20. ..........................................

May 6-31. .......... . .. ......

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

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

Discharge in second-feet.

Maximum.

141 

310 

412 

425 

425 

360

Minimum. . Mean.

48 

159 

310 

396 

296 

3

112

250 

376 

413 

361 

223

Run-off in 

acre-feet.

4,440 

12,900 

22.400 

25,400 

22,200 

13,300

FORT HALL LOWER CANAL NEAR BLACKFOOT, IDAHO.

LOCATION. In sec. 15, T. 3 S., R. 35 E., Bingham County, 200 feet below ford where 

road to headgates half a mile above crosses canal and 2i miles southeast of 

Blackfoot.

RECORDS AVAILABLE. May 15, 1912, to September 30, 1918.

GAGE. Inclined staff on right bank near center of concrete rating station; read by 

ditch rider for the United States Indian Service. Bristol water-stage recorder at 

same site, referred to a datum 1.53 feet lower than that of staff gage, was used 

from 19] 2 to 1914.

DISCHARGE MEASUREMENTS. Made from suspension footbridge at gage.

CHANNEL AND CONTROL. Channel at gage is trapezoidal concrete rating section, at 

sides of which sand and silt have been deposited. Principal control is a wooden 

check across the canal about a third of a mile below gage. Variations in amount 

of water carried in a large lateral that diverts between the gage and the check and 

the growth of moss and weeds in the canal caused several changes in the stagedischarge relation during the season.

EXTREMES OP DISCHARGE. 1912-1918: Maximum discharge, 268 second-feet August 

5, 9, and 10, 1918. Canal reported dry on numerous days.

ICE. No records obtained during winter. Small quantities of water are run at times 

for use of stock, but during most of the winter the headgates are closed.

DIVERSIONS. None above gage; one large and one small lateral divert between the 

gage and the check that acts as the main control.

REGULATION. Flow regulated at the headgates half a mile above gage.

ACCURACY. Stage-discharge relation not permanent; affected by variation in quantity 

of water diverted immediately below gage, by variable conditions at the control, 

and by growth of aquatic vegetation. Standard rating curve fairly well denned; 

several parallel curves used. Gage read to hundredths twice daily. Daily discharge ascertained by applying mean daily gage height to rating table, or by 

shifting-control method. Records good.

Discharge measurements of Fort Hall lower canal near Blackfoot, Idaho, during the year

ending Sept. 30, 1918.

Date.

Mav 20

Made by 

^^illiam Kcs^ler

Gage 

height.

Feet 

1.10

2.41

2.83

Discharge.

Sec.-ft.

7.2

1L7

J75

Date.

Sept. 11

Made by 

G. C. Baldwin........ .

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

Gage 

height.

Feet. 

2.90

3.28

2.90

Discharge.

Sec.-ft. 

195

254

20-1
SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Fort Hall lower canal near Blackfoot, Idaho, for the

year ending Sept. SO, 1918.

Day.

1.....

2.....

3. . ...

4. . ...

5.....

6. ....

7. ....

8.....

9.....

10.....

11.....

12.....

13.....

14.....

15.....

Oct.

107

107

87

62

50

50

50

50

50

50

50

50

50

38

36

May.

84

86

86

63

37

37

41

72

111

June.

158

151

151

146

134

132

168

174

158

115

152

170

181

192

July.

212

202

218

196

190

190

196

198 iae

196

196

202

202

205

Aug.

232

254

254

262

261

252

248

234

262

254

256

240

243

248

Sept.

180

177

180

182

185

195

208

205

206

205

204

206

204

193

149

Day.

16. ....

17.....

18.....

19.....

20.....

21.....

22 ...

23.....

24.....

25.....

26.....

27.....

28.....

29.....

30.....

31.....

Oct.

36

34

30

30

20

12

8

May.

108

124

126

126

118

121

114

106

138

151

154

167

164

162

159

156

June.

188

210

175

199

225

236

242

255

233

196

194

196

204

217

212

July.

189

188

181

180

178

183

104

73

71

68

121

175

174

196

182

225

Aug.

262

246

202

196

195

194

182

171

168

168

163

137

171

158

177

182

Sept.

149

147

147

144

146

144

144

142

144

127

124

127

127

124

124

Monthly discharge of Fort Hall lower canal near BlacJcfoot, Idaho, for the year ending

Sept. SO, 1918.

Month.

October 1-22... ................. . . ..

May 7-31.......................... ... . .............

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

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

Discharge in second-feet.

Maximum.

107 

167 255' 

225 

262 

206

Minimum.

8 

37 

115

68 

137 

124

Mean.

48 

112 

184 

177 

217 

165

Run-off in 

acre-feet.

2,090 

5.550 

10,900 

10,900 

13,300 

9,820

PORTNETTF RIVER AT POCATELLO, IDAHO.

LOCATION. In sec. 27, T. 6 S., B. 34 E., 90 feet above old slaughter-house bridge 

at foot of Carson Street, in Pocatello, Bannock County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. August 31, 1911, to September 30, 1918. For station 1 mile 

upstream, May 18, 1897, to October 14, 1899.

GAGE. Vertical staff on left bank just below highway bridge; read by W. S. Hutson. 

Gage used from 1897 to 1899 was vertical staff fastened to pier of wagon bridge 

one-eighth mile below plant of Pocatello Electric Tight Co.

DISCHARGE MEASUREMENTS. Made by wading or from upstream side of old slaughterhouse bridge.

CHANNEL AND CONTROL. Bed composed of rocks and boulders; shifts between 

narrow limits. No well-defined control. Left bank subject to overflow at extremely high water.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 4.65 feet at 8 a.m. 

March 28 (discharge, 579 second-feet); minimum stage recorded, 2.25 feet 

August 4-6, 8-10, 12, and 14 (discharge, 80 second-feet).

1911-1918: Maximum stage recorded, 7.8 feet May 30, 1917 (discharge in excess 

of 2,000 second-feet during period from May 13 to June 14, when left bank was 

overflowed); minimum stage recorded, 2.0 feet July 4, 1915 (discharge, 52 secondfeet).

1897-1899: Maximum stage recorded, 12.80 feet May 18, 1897 (discharge, 

1,880 second-feet); minimum stage recorded, 6.10 feet July 4-11, 13, and 17-18, 

1898 (discharge, 14 second-feet).
SNAKE RIVER BASIN. 97

ICE. Stage-discharge relation not seriously affected by ice.

DIVERSIONS. Numerous diversions above station. The largest single diversion is 

canal of Portneuf-Marsh Valley Canal Co. which irrigates land near Downey.

REGULATION. None below head of Portneuf-Marsh Valley Canal Co.'s canal. Storage 

reservoir of company near Chesterfield has capacity of about 28,000 acre-feet.

ACCURACY.--Stage-discharge relation shifted slightly; affected by ice during winter. 

Rating curves well defined. Gage read to quarter-tenths three times weekly, 

except during .Tune and July when daily readings were obtained. Daily discharge ascertained by applying daily gage height to rating table and interpolating 

for days of no gage height. Records good.

Discharge measurements of Portneuf River at Pocatello, Idaho, during the year ending

' Sept. 30, 1918.

Date.

Mar. 6

May 24

Sept. 11

Made by 

C. F. Elford. .............................................................

G. C. Baldwin............................................................

Gage 

height.

Fett. 

3.70

2.88

2.72

Discharge.

Sec.-ft. 

339

169

142

Daily discharge, in second-feet, of Portneuf River at Pocatello, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9..............

10..............

11..............

12..............

13..............

14. .............

15..............

16..............

17..............

18..............

19......:.......

20..............

21..............

22..............

23..............

24. .............

25..............

26..............

27..............

28..............

29. .............

30..............

01

Oct.

288

288

288

288

288

288

288

288

288

288

288

298

308

308

308

308

308

308

308

308

311

313

316

318

321

324

326

329

329

329

329

Nov.

329

QOQ

329

329

QOQ

329

329

329

329

QOQ

329

329

329

329

329

329

329

351

351

351

351

351

351

351

351

351

351

351

351

351

Dec.

351

351

351

351

OKI

351

351

351

OOQ

OOQ

329

329

329

329

QOQ

329

329

329

329

329

329

329

329

329

329

329

336

344

351

351

Jan.

351

351

351

351

OKI

351

351

351

OKI

330

309

288

300

308

308

308

308

308

308

308

308

308

308

308

308

308

Feb.

I 290

358

358

358

QKQ

358

358

358

358

358

358

358

358

358

358

350

343

335

313

313

313

313

313

Mar.

313

010

335

335

QQK

335

335

335

QQE

374

QQQ

405

439

473

507

507

507

521

535

550

564

564

564

564

564

564

564

564

564

564

Apr.

554

535

526

516

507

507

516

coc

535

535

535

564

"^4.

545

<\\ 7

498

480

480

471

463

454

454

454

454

454

454

May.

454

437

429

389

374

358

343

328

313

313

292

270

94X»

239

229

222

216

209

200

190

181

172

190

225

260

291

9ai

280

280

June.

280

270

260

249

94.O

229

209

200

181

172

164

147

132

124

117

110

110

110

124

139

310

429

381

291

249

229

209

190

July.

181

181

181

172

172

172

164

164

132

132

139

155

164

172

164

155

147

139

132

124

124

117

117

110

104

97

97

91

85

Aug.

85

85

85

80

80

80

80

80

8080'

80

80

80

80

118

155

140

125

110

110

110

110

110

110

110

110

110

110

110

110

110

Sept.

110

110

. 110

110

110

117

124

132

10Q

139

139

139

139

147

147

147

155

181

186

190

190

195

200

200

200

210

219

239

239

. Braced figures show mean discharge for periods indicated; estimated because of ice.
98 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Portneuf River at Pocatello, Idaho, for the year ending Sept. 30,1918.

Month.

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

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

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

The year................ .... .. . ..............

Discharge in second-feet.

Maximum.

329 

351 

351 

351 

358 

564 

564 

454 

429 

181 

155 

239

564

Minimum.

288 

329 

329

313 

454 

172 

110 

85 

80 

110

80

. Mean.

306 

339 

338 

319 

336 

457 

505 

293 

208 

140 

100 

160

291

Run-off in 

acre-feet.

18,800 

20,200 

20,800 

19,600 

18,700 

28,100 

30,000 

18,000 

12,400 

8,610 

6,150 

9,520

211,000

NORTH SIDE MINIDOKA CANAL NEAR MINIDOKA, IDAHO.

LOCATION. In sec. 1, T. 9 S., R. 25 E., 650 feet below Minidoka dam and 6 miles 

south of Minidoka, Minidoka County.

RECORDS AVAILABLE. May 1, 1909, to September 30, 1918.

GAGE. Friez water-stage recorder on left bank, 300 feet below site of gage used prior 

to October 31, 1914; inspected by employees of United States Reclamation 

Service.

DISCHARGE MEASUREMENTS. Made from suspension footbridge a few feet above present gage.

CHANNEL AND CONTROL. Rock cut; practically permanent but rough.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.35 feet on April 

30, May 5 and 6 (discharge, 1,500 second-feet). No flow at various times when 

headgates were closed.

1909-1918: Maximum stage recorded, 9.44 feet May 20, 1914 (discharge, 1,520 

second-feet); no flow at various times when headgates were closed.

ICE. Observations discontinued during winter.

DIVERSIONS. None above station and none close enough below to affect stagedischarge relation.

REGULATION. Flow controlled by headgates at Minidoka dam.

ACCURACY. Stage-discharge relation permanent. Rating curve well defined. Operation of water-stage recorder excellent. Mean daily gage height obtained by 

inspecting recorder graph. Daily discharge ascertained by applying mean daily 

gage height to rating table. Records good.

COOPERATION. Records furnished by United States Reclamation Service.

North Side Minidoka canal diverts from the right bank of Snake River in sec. 1, T. 

9 S., R. 25 E. Water is used for irrigating the North Side Minidoka project of the 

United States Reclamation Service. Project has about 20 miles of main canal and 

about 260 miles of laterals.

Discharge measurements of North Side Minidoka canal near Minidoka, Idaho, during the

year ending Sept. 30, 1918.

Date.

Apr. 19

30 

June 29

Julv 13

Made by 

Crawford and Anderson 

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

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

Gage 

height.

Feet. 

7.40

9.30 

8.33

9 30

Discharge.

Sec.-ft. 

1,030

1,500 

1,260

1 490

Date.

Aug. 17

Sept. 17 

27

Made by 

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

Gage 

height.

Feet.

6.06 

6.05

Discharge.

Sec.-ft.

711 

693

NOTE. Measurements made by employees of U. S. Reclamation Service.
SNAKE RIVER BASIN. 99

Daily discharge, in second-feet, of North Side Minidoka canal near Minidoka, Idaho, for 

the year ending Sept. 30, 1918.

Day.

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

2.................... .......... ..

3....................................

4....................................

5....................................

6....................................

7....................................

8....................................

9....................................

10....................................

n.......... ..........................

12.............. . . ... ......

13....................................

14....................................

15................ .. ..........

16................ .. .....

17.............. ............. ..4......

18....................................

19....................................

20.................... .........

21............ ... .. . ..

22................ .. .........

23....................................

24................ . . ... ..

25................................

26................ . ........

27....................................

28.. ...

29................................

30....................................

31....................................

Oct.

557

540

514

523

532

523

523

506

322

Mar.

215

215

Apr.

215

215

256

455

575

575

584

647

723

879

1,030

1,020

1,020

1,030

1,020

1,020

1,020

1,000

1,000

1,000

1,080

1,150

1,150

1,230

1,320

1,370

1, 450

1,490

1,500

May.

1,490

1,490

1,490

1,490

1,500

1,500

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,480

1,490

1,490

1,490

1,490

1,490

1,480

1,460

June.

1,490

1,490

1,490

1 490

l'490

1,490

1,490

1,490

1,490

1,490

1,480

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,460

1,320

1,150

1,150

1,200

1,230

1,210

July.

1,250

1,340

1,370

1,370

1,410

1,480

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,480

1,490

1,490

1,490

1,490

1,490

1,490

1,490

1,480

1,410

1,340

1,360

1,360

1,380

Aug.

1,490

1 490

l! 480

1,480

1,340

1,290

1,290

1,300

1,140

1,080

1,080

1,080

1,160

1,180

1,160

1,150

1,150

1,200

1,210

1,200

1,210

1,200

1,210

1,200

1,210

1,200

1,200

1,230

1,270

1,320

1,360

Sept.

1,340

1,360

1,340

1,330

1,340

1,340

1,340

1.360

1,280

1,020

970

958

970

804

723

714

714

714

723

714

723

723

714

723

723

714

714

714

694

685

Monthly discharge of North Side Minidoka canal near Minidoka, Idaho, for the year ending

Sept. 30, 1918.

Month.

March 29-31 ............................................

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

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

Discharge in second-feet.

Maximum.

557 

215 

1,500 

1,500 

1,490 

1,490 

1,490 

1,360

Minimum.

322 

134 

215 

1,460 

1,150 

1,250 

1,080 

685

Mean.

504 

188 

920 

1,490 

1.430 

1,450 

1,240 

939

Run-off in 

acre-feet.

9,000 

1,120 

54,700 

91,600 

85.100 

89,200 

76,200 

55,900

SOUTH SIDE MINIDOKA CANAL NEAR MINIDOKA, IDAHO.

LOCATION. In sec. 12, T. 9 S., R. 25 E., Cassia County, 300 yards below headgates 

at Minidoka dam and 6 miles south of Minidoka.

RECORDS AVAILABLE. April 21, 1909, to September 30, 1918.

GAGE. Friez water-stage recorder on right bank; inspected by employees of United 

States Reclamation Service. Prior to irrigation season of 1910 gage was 200 or 

300 feet upstream. Datum unchanged since spring of 1910.

DISCHARGE MEASUREMENTS. Made from suspension footbridge a few feet above gage.

CHANNEL AND CONTROL. Canal section is in earth; may shift. Stage-discharge relation affected by growth of aquatic plants.
100 SURFACE WATER SUPPLY, 1918, PART XII B.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.60 feet July 21 

and 22 (discharge, 1,060 second-feet); probably no flow during period of no record. 

1909-1918: Maximum discharge, 1,060 second-feet July 21 and 22, 1918; minimum discharge as above stated.

ICE. No records obtained during winter.

DIVERSIONS. None above gage.

EEGULATION. Flow controlled by headgates at Minidoka dam.

ACCURACY. Stage-discharge relation not permanent. Standard rating curve well 

denned; several parallel curves used. Operation of water-stage recorder satisfactory. Mean daily gage height obtained by inspecting recorder graph. Daily 

discharge ascertained by applying mean daily gage height to rating table or by 

shifting-control method. Records good. 

South Side Minidoka canal diverts from the left bank of Snake River in sec. 1,

T. 9 S., R. 25 E. Water is used for irrigating the South Side Minidoka project of the

United States Reclamation Service. Project has about 13 miles of main canal

and about 20 miles of laterals.

Discharge measurements of South Side Minidoka canal near Minidoka, Idaho, during the

year ending Sept. 30, 1918.

Date.

Apr. 20 May 3

20

Made by 

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

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

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

Gage 

height.

Feet.

4.63

S

KA

5.59

Discharge.

Sec.-ft. 

211

700

796

1,030

1,080

Date.

Aug. 9

22

27

Made by 

Crawford and Anderson

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

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

E. P. Anderson ........

Gage 

height.

Feet. 

5.36

4.71

3.98

3.88

Discharge .

Sec.-ft. 

922

732

524

532

NOTE. Measurements made by employees of U. 8. Eeclamation Service.

Daily discharge, in second-feet, of South Side Minidoka canal near Minidoka, Idaho, for

the year ending Sept. SO, 1918.

Day.

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

3............................................

6........................... ................

7............................................

8....................... ................

9

10............................................

11......................... ..................

12............................................

13....................... . ............. ..

14............................................

15............................................

16...................

17............................................

18.... ........................................

19............................................

20............................................

21 ......................... ........... . .

22............................................

23............................................

24.......................... ........... . ..

25

26............................................

27............................................

28............................................

29............................................

30............................................

31 ............................................

Oct.

409

399

386

378

371

378

380

386

388

386

384

382

380

375

369

366

360

353

351

344

Apr.

210

210

208

207

210

224

280

294

313

353

429

May.

574

661

780

849

891

934

962

962

934

934

934

919

905

877

821

835

835

821

753

753

740

753

821

835

835

835

821

766

794

821

877

June.

877

877

919

934

962

992

1,010

1,020

1,020

1,040

1,040

1,050

1,050

1,050

1,040

1,010

1,020

1,020

1,020

1,010

992

992

977

934

934

919

877

863

807

807

July.

794

807

948

977

962

977

992

1,010

1,020

1,040

1,040

1,040

1,040

1,040

1,040

1,040

1,050

1,050

1,050

1,050

1,060

1,060

1,050

1,050

1,050

530

824

992

1,000

997

994

Aug.

992

989

986

980

948

931

925

922

919

902

874

846

846

843

843

829

802

785

718

679

745

729

740

740

740

764

804

860

885

913

928

Sept.

939

939

951

951

951

962

962

931

888

818

802

775

695

603

591

567

541

532

536

527

529

532

525

527

529

522

502

429

401

384
SNAKE KIVER BASIN. 101

Monthly discharge of South Side Minidoka eanal near Minidoka, Idaho, for the year ending

Sept. SO, 1918.

Month.

October 1-20 ..........................................

April 20-30 ..................................;..........

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

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

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

September :................................ . . . . .

Discharge in second-feet.

Maximum.

409 

429 

962 

1,050 

1,060 

992 

962

Minimum.

344 

207 

574 

807 

530 

679 

384

Mean.

376 

267 

833 

969 

986 

852 

678

Run-off in 

acre-feet.

14, 900 

5,830 

51, 200 

57, 700 

60, 600 

52,400 

40, 300

NORTH SIDE TWIN FALLS CANAL AT MILNER, IDAHO.

LOCATION. In sec. 20, T. 10 S., R. 21 E., Jerome County, at highway bridge half a 

mile north of Milner post office and three-fourths mile below headgates at Milner 

dam.

RECORDS AVAILABLE. May 10,1909, to September 30,1918.

GAGE. Vertical staff attached to downstream side of bridge near left bank; read by 

F. W. Deming October 1, 1917, to March 31, 1918; from April 1, 1918, Stevens 

8-day water-stage recorder at slightly different site and datum. Datum of bridge 

gage unchanged since establishment of station. A slide gage installed on bridge in 

1911 and set to read same as staff gage was discontinued in 1913. A Lietz waterstage recorder which was installed in 1912 in a shelter over the staff gage, never 

operated entirely satisfactorily and was abandoned in 1913. New datum used 

after April 1, 1918.

DISCHARGE MEASUREMENTS. Made from cable 150 feet below gage.

CHANNEL AND CONTROL. Channel is a permanent concrete-lined section. Moss 

growth is heavy during summer and stage-discharge relation is seriously affected. 

Control apparently indeterminate.

EXTREMES OP DISCHARGE. Maximum stage recorded during the year, 8.34 feet at 

8 p. m. July 16 (discharge, 2,970 second-feet); canal dry October 21 to November 

5, and for a few hours on other days. 

1909-1918: Maximum and minimum stages as noted above.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. None between gage and headgates and none for some distance below. 

Surplus water may be discharged into river through waste gates about 200 feet 

below head of canal.

REGULATION. Flow regulated by head and waste gates.

ACCURACY. Stage-discharge relation not permanent, changes being due largely to 

growth of aquatic plants. Standard rating curve well defined; several parallel 

curves used. Staff gage read to half-tenths once daily October 1 to March 31; 

September 8-13 and 22-30; operation of water-stage recorder satisfactory for 

remainder of year. Daily discharge ascertained by applying to rating table mean 

daily gage height obtained from staff reading or by inspecting recorder graph. 

Discharge also ascertained by shifting-control method. Records for periods in 

which water-stage recorder operated, excellent; other records fair.

COOPERATION. Some discharge measurements furnished by State engineer of Idaho. 

Gage-height record and some measurements furnished by Twin Falls North 

Side Land & Water Co.

The North Side Twin Falls canal diverts water from the north side of Snake River 

at the Milner dam and furnishes water for stock and irrigation for about 240,000 acres 

in Minidoka, Lincoln, and Gooding counties. The distribution system comprises 

about 100 miles of main canal and 625 miles of laterals.
102 SUKFACE WATEK SUPPLY, 1918, PART XII B.

Discharge measurements of North Side Twin Falls canal at Milner, Idaho, during the year

ending Sept. SO, 1918.

Date.

Apr. 11

29 

May 15

16

17

29

30 

June 1

8

19

Made by 

Finkelnburg and McConnel......... .

E. A. Finkelnburg. .... 

Burdick and McConnel.

L. T. Burdick..........

L. T. Burdick. .........

Crandall and Burdick . . 

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

L. T. Burdick..........

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

Gage 

height.

Feet. 

5.32

7.43 

7.95

7.96

7.97

7.90

8.02

an

7.90

8.19

Discharge.

Sec.-ft. 

1.560

2,410 

2,530

2,520

2,720

2,380

2,400 

2,850

"2,740

2,750

Date.

July 9 

24

30 

Aug. 12

19

19

Sept. 19

27 

27

Made by 

Crandall and A dams. . . .

Bald win and McConnel.

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

Bald win and McConnel. 

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

Gage 

height.

Feet. 

8.23 

8.21

7.79 

8.25

8.02

8.03

a 22

7.11 

7.14

Discharge.

Sec.-ft. 

2.920 

2,890

2,680 

2,930

2,810

2,800

2,630

2,160 

2,140

NOTE. Finkelnburg, Burdick, Crandall, and Adams, employees of Twin Falls North Side Land &Water 

Co. McConnel employee of State of Idaho.

Daily discharge, in second-feet, of North Side Twin Falls canal at Milner, Idaho, for the

year ending Sept. 30, 1918.

Day.

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

2..............

3..............

4..............

6..............

7..............

8..............

9..............

10..............

11..............

12...... . ... .

13..............

14..

15..............

16.......... ...

17..............

18..............

19..............

20..............

21..

22.... . . . . .

23..............

24..............

25..............

23 ....

27..............

28..............

29..............

30..............

31..............

Oct.

291

353

376

376

311

332

311

311

291

291

353

353

353

353

QCQ

353

353

353

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

291

480

700

700

700

737

700

962

962

7°.7

291

291

291

291

272

291

291

291

291

291

291

291

291

291

Dec.

9Q1

9Q1

9Q1

291

291

9Q1

291

OQ1

9Q1

291

291

291

291

291

291

9Q1

291

291

291

291

291

962

932

962

811

Jan.

811

811

811

CQ7

597

CQ7

400

coy

597

480

480

COQ

597

597

CQ7

CR7

552

C07

537

7ftft

670

flOQ

609

578

Feb.

ejQ

517

487

426

453

A KQ

200

664

597

KQ7

597

coo

480

480

480

480

480

480

480

480

480

Mar.

480

480

480

480

480

480

480

480

480

480

480

480

630

664

664

664

664

664

664

664

932

1,200

1,200

1,160

1,370

1,460

1,500

1,400

Apr.

i ix\f\

1.220

810

497

512

630

1,290

1,500

1,530

1,530

1,550

1,540

1, 570

1,600

1,640

1,810

1,830

1,820

1,740

1,970

2,200

2,290

2,330

2,430

2, 520

2,380

2,350

2,390

May.

2,590

1,920

2,590

2,610

2,570

2,560

2,520

2,540

2,500

2,490

2,510

2,520

2, 520

2,510

2,480

2,440

2,430

2,390

2,400

2,390

2,410

2,420

2,410

2,370

2,410

2,410

602

June.

712

2,870

2,800

2,750

2,750

2,750

2,750

2,750

2,750

2, 750

2,750

2,720

2,720

2,720

2,820

2,870

2,900

2,900

2,900

2,900

2,900

2,900

2,900

2,870

2,900

2,900

2,870

2,900

2,870

July.

2,870

2,870

2,870

2,900

2,900

2,900

2,900

2,900

2,900

2,900

2,900

2,920

2,920

2,920

2,920

2,950

2,950

2,920

2,920

2,920

2,920

2,920

2,920

2,900

2,920

2,920

2,900

2,800

2,670

2,720

2,770

Aug.

2,900

2,950

2,920

2,920

2,920

2,900

2,920

2,920

2,920

2,900

2,900

2,920

2,920

2,920

2,920

2,920

2,870

2,850

2,850

2,820

2,140

2,800

2,800

2,770

2,760

2,730

2,690

2,680

2,650

2,640

2,600

Sept.

2,560

2,540

2,530

2,490

2,500

2,510

2,500

2,470

2,460

2,450

2,440

2,480

2,470

2,340

2,490

2,540

2,540

2,470

2,320

2,370

2,190

2,170

2,170

2,120

2,000

2,000

NOTE. Period Oct. 21 to Nov. 5 estimated at zero discharge. Discharge interpolated Jan. 16. 20-22, 24, 

Jan. 28 to Feb. 4, Feb., 13, Mar. 18, 23, and 31.
SNAKE RIVER BASIN. 103

Monthly discharge of North Side Twin Falls canal at Milner, Idaho, for the year enSing

Sept. 30, 1918.

Month.

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

Discharge in second-feet.

Maximum.

376 

982 

962 

811 

664 

1,500 

2,520 

2,610 

2,900 

2,950 

2,950 

2,570

Minimum.

0 

0 

291 

400 

200 

480 

497 

602 

712 

2,670 

2,140 

2,000

2,950 ! 0

Mean.

218 

387 

392 

628 

490 

771 

1,660 

2,410 

2,760 

2,890 

2,820 

2,410

1,490

Run-off in 

acre-feet.

13,400 

23,000 

24,100 

38,600 

27,200 

47,400 

98,800 

148,000 

164,000 

178,000 

173, 000 

143,000

1,080,000

SOUTH SIDE TWIN FALLS CANAL AT MILNER, IDAHO.

LOCATION. In sec. 29, T. 10 S., R. 21 E., at wagon bridge one-eighth of a mile below 

headgates at Milner, in Twin Falls County.

RECORDS AVAILABLE. May 10, 1909, to September 30, 1918.

GAGE. Vertical staff in two sections, read by F. W. Deming and W. N. McConnel. 

The main or upper section of the gage is on the left bank of the canal about 100 

feet upstream from the highway bridge, to the lower side of which the low-water 

section is fastened. This low-water section is the original gage, but on account 

of the difficulty in making readings accurately at high stage, the high-water 

se.ction was installed early in the summer of 1912 and has since been used exclusively for stages above 5.3 feet. The two sections read practically the same, 

although the datum of the upstream section is about 0.1 foot higher than the other. 

A Friez water-stage recorder is installed opposite the upper staff gage; used April 

5 to September 30, 1918.

DISCHARGE MEASUREMENTS. Made from highway bridge and suspension bridge 150 

feet upstream; also from cable.

CHANNEL AND CONTROL. Channel at gage is blasted out of rock; practically permanent. Occasional slight changes in control are due to washing in and deposition of silt.

EXTREMES OF DISCHARGE. Maximum discharge recorded during year, 4,600 secondfeet August 12; minimum stage, 2.00 feet February 12 (discharge, 120 second-feet). 

1909-1918: Maximum discharge as noted above; minimum stage recorded, 0.8 

foot April 7, 1913 (discharge, 11 second-feet).

ICE. Stage-discharge relation seldom affected by ice; open channel rating curve 

used throughout the year. Because of the close proximity of the gaging-station 

to the headgates, ice never forms in the immediate vicinity of the gage but has 

been known to form to a sufficient extent farther down the canal to affect stagedischarge relation.

DIVERSIONS. None above gage and none of consequence for several miles below.

REGULATION. Flow regulated by headgates.

ACCURACY. Stage-discharge relation considered permanent throughout year. Rating 

curve well defined. Gage read daily to tenths October 1 to April 4; operation of 

water-stage recorder satisfactory from April 5 to September 30. Daily discharge 

ascertained by applying to rating table mean daily gage height obtained by 

inspecting recorder graph or from staff gage reading. Records October to April 4, 

fair; for rest of year, good.
104 SURFACE WATER SUPPLY, 1918, PART XII B.

COOPERATION. Gage-height record and part of the discharge measurements furnished 

by the Twin Falls Canal Co. and by the State engineer of Idaho.

The South Side Twin Falls canal diverts water from the south side of Snake River 

at the Milner dam. This canal furnishes water for stock and for irrigation of about 

200,000 acres near Twin Falls. The distribution system comprises about 110 miles of 

main canal and 590 miles of laterals.

Discharge measurements of South Side Twin Falls canal at Milner, Idaho, during the year

ending Sept. 30, 1918.

Date.

26

27

Made by 

W. N. McConnel .........................................................

G. C. Baldwin. ..........................................................

Gage 

height.

Feet. 

9.44

8.05

6.12

Discharge.

Sec.-ft. 

3,060

2,090

1,270

NOTE. W. N. McConnel, an employee of the State of Idaho.

Daily discharge, in second-feet, of South Side Twin Falls canal at Milner, Idaho, for the

year ending Sept. 30, 1918.

Day.

2..............

5..............

6..............

8..............

9..............

10. .............

11..............

12..............

13..............

14-...-.-.......

15-.----........

16-----.-..-....

17-.-.-.-.......

18..............

19..............

20. .............

21..............

23.... ..........

24. .............

OC

27. ...---.-.-...

28. .............

29. .............

30..............

31..---.-.......

Oct.

1,990

2,040

2,140

2,650

2,710

1,470

1,600

1,310

1,890

2,140

1,890

1,890

1,230

1,430

1,430

1,430

1,230

1,230

1,230

438

1 430

1,430

1 430

1,350

i ^^n

i i%(\

1,350

Nov.

1,350

1 1%(\

1,350

1,350

1,350

1,350

1,350

1,350

i 3P»ft

1,350

1,350

QAA

944

944

877

877

877

718

718

718

572

C70

CTO

£70

£70

Dec.

572

572

w>

- 572

572

572

C7O

572

572

877

877

877

877

877

877

877

877

718

718

718

718

718

718

Q77

«77

£70

C7O

£70

572

Jan.

629

629

629

629

£70

572

£70

572 KTO

CTO

517

517

464

464

877

877

877

511

517

£79

C7O

£70

Feb.

877

1,050

1,050

718

718

230

017

153

464

517

517

517

517

517

517

517

517

517

517

658

517

517

517

Mar.

517

517

517

517

517

572

572

517

364

364

364

572

718

718

877

i 3^n

1,050

1,050

Apr.

1,500

1,700

1,560

1,410

1,410

1,410

1,500

i <ain

1,540

1 940

l'990

2,010

1 OQfl

1,990

1,940

1,990

1,890

1,910

2,470

2

eftn

2 fi*yi

2 7on

2

QOA

S ftfift

3

1OA

May.

3,220

3,280

3,190

3,370

3,490

3,560

Q v)n

2,420

2 ftCft

3,430

3,430

3,430

2,590

3,430

3,490

3,520

3,430

3

COA

S

can

S

can

3,460

3 430

3^430

June

3,460

3,430

3,430

3,460

3,430

3,430

3,590

3,590

3,590

3,590

3,590

3,590

3,590

3,590

3,590

3,590

3,590

3,490

3,430

S

een

3,620

3

CAA

July.

3,490

3,460

3,520

3,590

3,620

3,150

3,620

3,560

3,560

3

E£A

3,590

3,590

3,620

3 680

3,620

3

0JA

3 310

3 ocn

3

OCft

3,310

Aug.

3,560

3,650

3 680

3,620

3,340

3,220

3,370

3

.4QA

3,900

4,300

3,870

3,400

3 o<in

3,280

3,280

3,280

3,000

S finn

3,000

3,500

3,450

3

CCA

3,400

S

een

3,450

3,510

; Sept.

3 Q7fx

3,220

 2,940

3

HQA

S lfift

3,280

3 ion

3,120

S oon,

3 OCA

3

COA

3 OCA

2,820

3,060

3,400

2 7firt

2,470

2

OOA

2 Cflfl

2 360

1 Qfift

2 300

2*420

2 Cfifl

NOTE. Data insufficient to warrant an estimate during the period Mar. 17-23. Waste gate below gage 

open all or part of Aug. 11-14; 24-30 and Sept. 13-14; discharge estimated from available data. Waste 

gate open June 20-;22 but data too meager to estimate total discharge post gage; therefore quantity passing 

on down canal estimated.
SNAKE RIVER BASIN. 105

Monthly discharge of South Side Twin Falls canal at Milner, Idaho, for the year ending

Sept. 30, 1918.

Month.

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

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

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

Discharge in second-feet.

Maximum.

2,710 

1,350 

877 

877 

1,050 

3,120 

3,620 

3,620 

3,680 

4,600 

4,150

Minimum.

438 

572 

572 

464 

120 

1,330 

2,090 

3,400 

3,090 

3,000 

1,960

Mean.

1,570 

990 

710 

605 

553 

1,980 

3,320 

3,540 

3,500 

3,460 

2,930

Run-off in 

acre-feet.

96,500 

58,900 

43,700 

37,200 

30,700 

118,000 

204,000 

211,000 

215,000 

213,000 

174,000

BIG WOOD RIVER AT HAILEY, IDAHO.

LOCATION. In sec. 9, T. 2 N., R. 18 E., at steel-highway bridge a quarter of a mile 

southwest of Hailey, Blaine County.

DRAINAGE AREA. 640 square miles (measured on topographic maps).

RECORDS AVAILABLE. June 11, 1915, to September 30, 1918.

GAGE. Vertical staff in two sections; high-water section on left bank attached to 

bridge pier and low-water section at different datum directly opposite on right 

bank; all readings are corrected to datum of high-water section. Prior to April 3, 

1917, an inverted stadia board spiked to pile near left abutment of bridge was 

used. Zero gage height 011 vertical staff at gage height 6 feet on inverted stadia 

board gage. Gage read by employee of Idaho Irrigation Co.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Channel fairly straight above and below station. Banks 

covered with light brush; subject to overflow at high stages when river may flow 

in from one to three channels, the number depending on the stage. Bed composed of coarse gravel and sand; clean. Low-water control formed by sheet piling 

used to protect a water main that crosses the river; high-water control subject to 

shift.

EXTREMES OF DISCHARGE. Maximum stage recorded during year ending September

30. 1917, 4.80 feet June 17 (discharge, 3,450 second-feet); minimum discharge 

probably somewhat less than 2 second-feet during period December 24 to January

31. when practically entire flow of river was diverted through Big Wood Slough by 

power plant above.

Maximum stage recorded during year ending September 30, 1918, 4.4 feet June 

13 and 14 (discharge, 2,630 second-feet); minimum stage, 0.16 foot December 

4-8, 10, and 11 (discharge, 10 second-feet).

1915-1918: Maximum stage recorded, 4.8 feet June 17, 1917 (discharge, 3,450 

second-feet): minimum discharge probably somewhat less than 2 second-feet 

during period December 24, 1916, to January 31, 1917, when practically entire 

flow of river was diverted through Big Wood Slough by power plant above.

ICE. Stage-discharge relation slightly affected by ice at times.

DIVERSIONS. Only a few small diversions for irrigation are made above station. 

Hailey power plant, half a mile upstream, utilizes as a tailrace a natural channel 

on east side of river known as Big Wood Slough. A large amount of water is 

diverted from the main stream in this manner and is returned to river below the 

station. Records of the flow of Big Wood Slough have been obtained (see p. 120), 

and the total flow of Big Wood River is represented by the amount of water passing 

both stations (pp. 108 and 109).
106 SURFACE WATER SUPPLY, 1918, PART XII B.

REGULATION. Variation in the amount of water used at Hailey power plant causes 

some diurnal fluctuation at gage, but as observations on the river and on Big 

Wood Slough are practically simultaneous each day, the effect of such regulation 

is probably eliminated.

ACCURACY. Stage-discharge relation not permanent; affected by ice January 12 to 

February 5, 1918. Three rating curves used. Curve used October 1, 1916, to 

April 3, 1917, well defined; was used direct. Curve used April 4 to May 13, 1917, 

well defined; was used direct April 4-25. Curve used May 18,1917, to September 

30, 1918, well defined between 25 and 3,000 second-feet; was used direct June 9, 

July 7-21, 1917, August 14, 1917, to January 11, 1918, and June 11 to September 

30, 1918. Indirect method for shifting control used for all periods for which 

rating curves were not used direct, except for periods indicated in footnote to 

tables of daily discharge. Gage read to hundredths once daily; gage-height record 

unsatisfactory for winter of 1916-17. Daily discharge ascertained by applying 

daily gage height to rating table for periods for which shifting-control method 

was not used, except for periods during which stage-discharge relation was 

affected by ice, for which it was ascertained by means of gage heights, weather 

records, and comparison with now of Big Wood Slough, and except as indicated 

in footnote to tables of daily discharge. Records fair prior to April 1, 1918; good 

thereafter.

COOPERATION. Gage-height record and several discharge measurements furnished by 

Idaho Irrigation Co. Discharge measurements also furnished by Idaho State 

engineer.

Discharge measurements of Big Wood River at Hailey, Idaho, during the years ending

Sept. 30, 1917 and 1918.

Date.

1917. 

May 11

19

30

8

9

18

20

26

July 7

16

21

30

30

Aug. 7

14

16

21

Made by 

AtMnson/ and McConnelf .................

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

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

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

F. M. Atkinson.........

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

Ga?e 

height.

Feet. 

3.23

3.44

3.77

3.73

4.30

4.40

4.32

3.68

3.57

2.59

2.35

1.86

1.84

1.56

1.16

1.17

1.16

Discharge.

Sec. -ft.

1,520

1,800

2,500

2,820

2,150

1,710

974

7QC

564

545

184

210

193

Date.

1917.

Sept. 5

14

1918.

Apr. 22

May 1

15

July 6

Q

10

17

Aug. 3

12

Sept. 16

Made by 

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

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

S. H. Chapman/.......

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

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

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

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

Gage 

height.

Feet. 

1.29

(a)

( 64.71

2.12

2.43

2.57

4.35

1.93

1.86

1.83

1.59

1.04

.75

d.39

1.27

Discharge.

Sec. -ft. 

227

32.6

\ 30.0 '

558

825

892

2.570

534

500

469

336

148

Qfl

43.0

213

a Water surface below gage.

& Reading from temporary low-water gage installed Sept. 14,1917.

c Corrected to agree with datum of present gage.

d Reading from temporary gage at same datum as present gage.

e Employee of Idaho Irrigation Co.

/ Employee of Idaho State engineer.
SNAKE RIVER BASIN. 107

Daily discharge, in second-feet, of Big Wood River at Hailey, Idaho, for the years ending

Sept. 30, 1917 and 1918.

Day.

1916-17. 

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

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9..............

10..............

11..............

12..............

13..............

14..............

15..............

16..............

17..............

18..............

19..............

20..............

21..............

22..............

23..............

24. .............

25..............

26. .............

27..............

28........:.....

29. .............

30. .............

31..............

1917-18. 

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

2..............

3..............

4..............

5..............

7..............

8..............

9..............

10.............

11..............

12..............

14..............

15..............

16..............

17..............

18..............

1Q

20. .............

21..............

22. .............

23. .............

24. .............

25.....-.--.....

26.....-------..

27..............

28..............

29..............

30..............

01

Cct.

183

183

188

183

183

216

216

212

212

268

257

226

226

226

221

221

207

197

183

183

183

183

183

183

183

183

183

183

188

183

30

30

30

24

24

24

24

24

24

24

24

24

24

24

24

24

24

1Q

127

210

107

107

89

89

59

59

59

59

47

59

CO

Nov.

183

183

183

178

178

178

178

178

174

169

156

160

160

156

151

146

146

169

160

156

174

174

174

174

174

174

174

174

160

47

47

47

47

47

47

47

47

47

47

47

47

47

178

193

193

193

178

178

178

38

47

47

47

47

47

47

38

38

42

Dec.

169

174

197

95

89

63

58

\ *

95

169

329

118

14.fi

4

2

42

28

14

10

10

10

10

10

14

10

10

12

14

116

116

163

210

210

210

210

193

210

203

206

196

210

216

223

210

216

213

Jan.

]

2

J

210

199

190

206

199

184

196

178

178

127

127

155

Feb.

3

I 140

163

138

163

138

163

163

163

163

138

116

138

163

150

127

138

138

138

156

150

138

163

138

127

Mar.

8

8

36

63

63

66

66

150

150

150

163

163

138

143

148

153

158

163

156

150

138

138

138

150

163

175

178

181

190

216

241

241

274

307

307

350

Apr.

50

69

69

60

63

63

63

66

69

92

92

95

95

95

95

95

95

95

58

95

89

95

118

160

216

300

340

306

306

295

374

374

287

287

263

287

287

303

374

398

422

422

476

462

448

422

397

374

397

422

476

594

658

658

691

658

626

594

625

726

May.

334

183

192

OOft

242

387

818

948

1,040

1,140

1,300

1,360

2,070

2,690

2,440

1,750

1,590

1,51Q

1,510

1,510

1,510

1,670

1,840

1,750

1,750

1,750

1,750

1,940

1 Q/Ul

1,940

795

900

970

1,120

1,270

1,270

1,200

1,200

1,120

970

865

830

865

900

970

865

865

795

726

691

691

691

726

726

726

760

760

726

726

760

79 .f

June.

1,750

1,750

1,750

1,670

i son

1,510

1,670

1,840

2,630

3,030

2,500

2,160

1,940

1,750

2,160

3,030

3,450

3,030

2,900

2,760

2,760

2,760

2,380

2,380

2,260

2,160

2,160

2,160

2,260

2,040

795

903

1,010

1,120

1,120

1,350

1,430

1,590

1,750

2,160

2,380

2,380

2,630

2,630

2,260

1,940

1,750

1,750

1,670

1,630

1,590

1,670

1,750

1,590

1,350

1,090

830

812

795

760

July.

1,840

1,840

1,840

1,840

1,750

1,590

1,590

1,590

1,510

1,430

1,270

1,270

1,200

1,120

1,040

970

900

900

900

900

900

760

760

760

726

726

625

625

625

625

625

726

691

625

578

532

532

476

448

503

476

448

422

397

448

562

476

350

328

299

291

260

210

196

193

196

193

172

163

161

156

140

Aug.

625

625

594

FTAO

J.99

397

374

350

291

271

206

199

193

190

187

187

216

196

216

216

178

166

166

1 CO

140

129

118

107

\ 75 / 75

136

145

166

156

145

136

96

87

82

59

43

44

38

34

39

41

41

89

7.0

64

64

64

62

59

54

30

29

24

24

22

156

Sept.

1 r

1 00

32

30

30

30

30

30

47

59

59

59

47

30

30

156

156

156

150

145

143

143

156

199

199

193

190

193

206

241

220

213

178

169

166

190

190

199

203

203

196

196

196

193

223

NOTE. Practically entire flow of river diverted through Eig Wood Slough December 17, 1916, to March 

24,1917; estimated discharge represents leakage through diversion dam. Water surface below gage August 

30 to September 20,1917, discharge estimated by means of two discharge measurements. Discharge interpolated on account of missing gage readings, Nov. 26,1916; Nov. 25, Dec. 2,16,1917; Feb. 21, March 7-10,12, 

17, 20, 24, 27, Apr. 10, 14, 27, May 4, 21, 30, June 2, 3, 8, 20, 22,26,28, and July 4,1918. Braced figures show 

mean discharge for periods indicated.

82374 22 WSP 483 8
108 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Big Wood River at Hailey, Idaho, for the years ending Sept. SO,

1917 and 1918.

Month.

1916-17. 

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

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

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

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

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

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

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

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

The year: ..................... ....

1917-18.

November. .........:.................. ..............

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

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

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

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

Discharge in second-feet.

Maximum.

268 

183 

197

66 

340 

2,690 

3,450 

1,840 

625 

59

3,450

210 

193 

223 

210 

163 

397 

726 

1,270 

2,630 

726 

166 

241

2,630

Minimum.

183 

146

50 

183 

1.510 

625

19 

38 

10

138 

263 

691 

760 

140 

22 

143

10

Mean.

200 

169 

62.3 

2.0 

3.0 

13.9 

127 

1,330 

2,270 

1,130 

258 

36.0

469

50.6 

78.0 

120 

164 

145 

192 

459 

880 

1,550 

376 

74.2 

185

356

Run-off 

in

acre-feet.

12,300 

10,100 

3,830 

123 

167 

855 

7,560 

81,800 

135,000 

69,500 

15,900 

2,140

339,000

3,110 

4,640 

7,380 

10,100 

8,050 

11,800 

27,300 

54,100 

92,200 

23, 100 

4,560 

11,000

257,000

Combined daily discharge, in second-feet, of Big Wood River and Big Wood Slough at 

Hailey, Idaho, for the years ending Sept. 30, 1917 and 1918.

Day.

1916-17. 

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

2..............

3..............

4..............

5..............

6....... ......

7..............

8..............

9..............

10..............

11..............

12..............

13..............

14..............

15..............

16..............

17..............

18..............

19..............

20..............

21..............

22..............

23..............

24..............

25..............

26..............

27..............

28..............

29..............

30..............

31..............

Oct.

197

197

202

197

197

197

231

231

227

227

283

275

243

243

243

238

238

227

217

203

203

203

203

. 203

203

204

204

204

204

207

202

Nov.

203

203

203

203

199

198

198

198

203

201

193

175

169

154

149

167

173

164

159

177

177

177

177

177

177

177

177

163

Dec.

172

177

200

191

191

135

120

88

82

142

170

one

175

133

122

150

194

188

188

169

169

169

178

186

186

186

167

152

152

158

Jan.

176

176

196

176

176

176

176

176

167

167

176

132

132

132

132

132

148

186

167

152

148

176

176

167

167

167

167

142

Feb.

138

168

168

168

168

168

168

168

168

168

168

168

168

168

168

149

168

168

168

168

187

149

168

131

Mar.

151

142

142

170

170

170

170

170

170

170

151 ivi

142

161

151

142

142

142

151

112

89

103

107

110

89

138

135

141

144

144

Apr.

116

147

139

123

139

141

141

146

149

199

199

203

205

205

205

193

173

181

184

188

215

223

264

325

400

360

414

365

365

355

May.

394

377

396

440

435

486

631

942

1,070

1,200

1,300

1,480

1,540

2.220

2,860

2,620

1.940

1,620

1,530

1,530

1.530

1.530

1,690

1,860

1,770

1.770

1,770

1.920

2,100

2,100

2.100

June.

1,900

1,910

1,910

1,830

1,740

1,660

1,840

2,000

2,800

3,200

2,630

2,290

2,070

1,900

2,310

3,180

3,580

3,180

3,050

2,880

2,890

2,880

2,470

2,530

2,390

2,280

2,180

2,180

2,270

2,060

July.

1,860

1,860

1,850

1,860

1,770

1,600

1,600

1,620

1,520

1,440

1,290

1,290

1,220

1,140

1,050

977

906

906

906

905

905

765

765

765

731

731

630

630

630

630

630

Aug.

630

630

600

509

428

406

386

365

352

355

301

262

295

289

286

282

289

333

306

318

318

266

268

268

259

251

245

235

231

245

245

Sept.

210

194

202

194

187

186

186

179

179

186

186

186

194

200

192

184

192

177

192

192

184

192

207

217

221

221

221

209

192

192
SNAKE RIVER BASIN. 109

Combined daily discharge, in second-feet, of Big Wood River and Big Wood Slough at 

Hailey, Idaho, for the years ending Sept. SO, 1917 and 1918 Continued.

Day.

1917-18. 

1........

2............

3.............

4..........

5...........

6.......

7..........

8. ..........

9...........

10...........

11.........

12.....

13......

14........

15..........

16......

17.......

18....... .

19..........

20.......

21........

22....

23....

24.......

25. .......

26.....

27.......

28........

29......... .

30...........

31............

Oct.

192

192

192

178

178

171

171

171

171

171

171

171

171

178

171

178

178

181

241 qo-i

215

212

203

191

199

199

199

179

199

1 <w

Nov.

i

179

179

187

1R7

179

1Q7

179

179

197

212

210

210

195

197

170

179

171

171

171

171

209

200

200

204

Dec.

204

182

161

157

1fi4

164

157

157

161

157

157

1 ^Q

161

201

198

205

212

91 o

91 0

91 Q

196

910

209

199

91 Q'

219

219

216

Jan.

202

193

9flQ

1Q7

199

Iftl

1 o-i

129

157

1 ^7

1 K7

157

1 f\7

1 KQ

158

158

1 KQ

158

1 f\7

1 f^Q

1 eo

158

158

157

1 CQ

158

157

Feb.

143

143

14^

till

1CQ

155

174

146

174

173

1 jc

1OO

 MQ

174

160

134

146

146

146

Ififi

1 KO

1 JK

146

134

Mar.

1 KQ

160

160

14A

1^1

 IKC

162

173

147

147

147

175

187

191

1QC

209

206

234

9fifl

260 900

qt 7

Of C

Apr.

387

386

296

971

296

v 296

of 9

OOf

406

431

AQ 1

485

471

4^1

405

000

405

430

485

604

669

669

7A9

668

RQK

603

634

736

May.

Qf\A

QQK

1 140

1 9Qrt

1 290

L210

1,210

1.130

977

071

QQfl

Q71

907

980

871

Q7(l

800 701

AQfi

AQfi

698

70 1

7Q1

7^1

766

765 701

7^1

766

OAO

June.

803

914

1,020

1,140

1,140

1,370

1,450

1.610

1,770

2 200

2,430

2 700

S

fiQfl

2 290

i Qfifl

1,760

1,770

1,650

1,610

1,700

1,780

1,620

1,110

850

828

806

770

July.

735

701

ftQK

588

*U9

490

465

522

497

475

449

49 e

462

K7Q

493

JKO

446

419

4.1 1\

380

366

340 007

340

qoq

303

301

901

280

Aug.

280

289

322

306

289

280

265

256

228

226

207

203

236

238

238

157

226

233

233

233

231

215

210

213

212

207

207

205

179

Sept.

174

180

180

176

171

169

168

182

220

224

219

214

217

229

242

233

225

218

213

209

210

220

223

223

215

214

214

210

243

Combined monthly discharge of Big Wood River and Big Wood Slough at Hailey, Idaho, 

for the years ending Sept. 30, 1917 and 1918.

Month.

1916-17. 

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

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

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

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

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

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

1917-18. 

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

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

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

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

Discharge in second- feet.

Maximum.

283 

203 

205 

196 

187 

170 

414 

2,860 

3,580 

1,860 

630 

221

3,580

321 

212 

226 

213 

183 

410 

736 

1,290 

2,700 

735 

322 

265

2,700

Minimum.

197 

149 

82 

132 

131 

89 

116 

377 

1,660 

630 

231 

177

82

171 

170 

157 

129 

122 

145 

271 

696 

770 

280 

157 

168

122

Mean.

218 

181 

163 

162 

165 

143 

222 

1,460 

2,400 

1,140 

337 

195

566

192 

187 

191 

167 

154 

204 

469 

888 

1,570 

449 

235 

210

410

Run-off in

acre-feet.

13,400 

10,800 

10,000 

9,960 

9,160 

8,790 

13,200 

89.800 

143,000 

70,100 

20,700 

11,600

410,000

11,800 

11, 100 

11,700 

10,300 

8,550 

12,500 

27,900 

54,600 

93,400 

27,600 

14,400 

12,500

296,000
110 SURFACE WATER SUPPLY, 1918, PART XII B. 

BIG WOOD RIVER NEAR BELLEVTTE, IDAHO.

LOCATION. In sec. 20, T. 1 S., R. 18 E., three-fourths of a mile below Blair's ranch, 

1J miles above flow line of Magic reservoir, and 10 miles southwest of Bellevue, 

Blaine County. Camas Creek enters reservoir 3 miles below station.

DRAINAGE AREA. 823 square miles (measured on topographic and Land Office maps).

RECORDS AVAILABLE. July 6, 1911, to September 30, 1918.

GAGE. Gurley water-stage recorder on right bank referred to a hook gage inside 

stilling well and a staff gage outside; installed July 11, 1917, at a datum 0.99 foot 

lower than former Gurley recorder, which was destroyed by the high, water of 

June 11, 1917. On April 9, 1918, all gages were corrected to former datum. All 

records referred to this gage prior to April 9, 1918, were reduced to former datum. 

A Lallie recorder was in use prior to May 3, 1916, when a Gurley recorder was 

installed at the same location and datum, and referred to an outside staff gage. 

After the destruction of the Gurley recorder the staff gage was used until about 

June 22, 1917, when it also was destroyed by high water, and a temporary staff 

gage was installed at a different datum and used until July 11, 1917. A Stevena 

8-day recorder was temporarily installed June 28, 1918, and used until August 

2, 1918, when the Gurley recorder was reinstalled. An employee of Idaho Irrigation Co. acted as observer.

DISCHARGE MEASUREMENTS. Made from cable 30 feet above gage or by wading.

CHANNEL AND CONTROL. Bed composed of coarse gravel. Control of same material; 

shifts occasionally. Both banks clean; may be overflowed at extreme high stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year ending September 

30, 1917, 5.29 feet at noon June 19 (discharge, 2,760 second-feet); minimum stage, 

0.71 foot 5 p. m. to 8 p. m. September 8 (discharge, 75 second-feet).

Maximum stage recorded during year ending September 30, 1918, 5.34 feet 

June 13 (discharge, 2,660 second-feet); minimum stage, from water-stage recorder, 

0.58 foot at 3 a. m. September 2 (discharge, 52 second-feet).

1911-1918: Maximum discharge 1 recorded, 2,760 second-feet, at noon June 19, 

1917; minimum stage, 0.57 foot February 22 and 23, 1916 (discharge, 46 secondfeet).

ICE. Stage-discharge relation slightly affected by ice.

DIVERSIONS. Numerous small diversions are made for irrigation in the vicinity of 

Bellevue and Hailey. Flood waters are stored in Magie reservoir of the Idaho 

Irrigation Co. Magit dam is about 9 miles downstream.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent; slightly affected by ice January 

1-9,1918. Three well-defined rating curves used, applicable October 1 to November 30,1916; April 1,1917, to May 4,1918, and May 23 to June 12,1918; May 7-17, 

June 13 to July 14, and July 22 to September 27, 1918. Curves were used direct 

except for periods April 1 to July 10, 1917, May 5, 6, 18-22, and July 19-21, 1918, 

for which the indirect method for shifting control was used. Operation of waterstage recorder satisfactory during 1917, but unsatisfactory during 1918; staff gage 

read to hundredths every other day during periods when recorder was not operating. Daily discharge ascertained by applying to rating table the staff gage reading or the mean daily gage height obtained by inspection of recorder graph, except 

for days of no record, for which it was estimated or interpolated; except for periods 

for which the shifting-control method was used; and except for periods during 

which stage-discharge relation was affected by ice, for which it was ascertained by 

means of gage heights and weather records. Records fair for April and June 21 

to July 10, 1917, and for 1918; good for other periods.

COOPERATION. Gage-height record furnished by Idaho Irrigation Co. Discharge 

measurements furnished by Idaho Irrigation Co. and Idaho State engineer.

1 Published incorrectly in previous reports.
SNAKE RIVER BASIN. Ill

Discharge measurements of Big Wood River near Bellevue, Idaho, during the years ending

Sept. 30, 1917 and 1918.

Date

1917. 

May 10

19

21

27 July 7

13

21

24

26

27

28

01

Aug. 2

0

6

7

7

10

11

15

16

18

18

21 

23

28

Sept. 4

14

Made by 

McConnel « and AtMnF. M. Atkinson........

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

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

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

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

Armstrong and Denecke

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

Ga?e 

height.

Feet.

3 97

3 97

3.76

4.20

6.12

K C1

3.01

9 KQ

2 19

1.97

1 93

1 54

1 Ofl

1 12

Q^

91

90

89

.86

.84

.77

.80

.81

.80

.78

.73

.77

Drcl^arge.

Sec.-ft. 

1,170

1,580

1,860

1,910

^74

434

353

325

324

94.9

184

142

115

109

106

102

98

95

82

90

87 

94

94

72

85

Date

1918. 

Apr. 9

16

26

May 1

. 15

OO

30

20

on

July 6

11

17

17

21

26

29

Aug. 2

99

31

Sept. 6

17

17

24

Made by 

Armstrong and Chap-

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

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

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

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

.....do..-........---...

.....do.-..---.--.-.-...

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

.....do..-..........---.

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

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

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

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

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

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

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

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

Mathews & and Kopel-

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

Ga°e 

height.

Feet. 

1.84

2.13

2.22

2.46

2.65

3.32

2.80

2.12

1.69

5.34

3.20

3.36

2.18

1.33

1.25

1.29

1.54

1.54

1.34

1.06

.90

.95

.74

.63

.60

.77

.77

.99

Discharge.

Sec. -ft. 

301

398

427

546

643

1,030

689

425

258

c 1.980

948

1,050

392

162

135

155

186>

188

160

11 J

86-

89-

71

57

55

69

76

105

o Employee of Idaho State engineer. 

& Employee of Idaho Irrigation Co.

c Measurement evidently not accurately made.

Daily discharge, in second-feet, of Big Wood River near Bellevue, Idaho, for the years ending

Sept. 30, 1917 and 1918.

Day.

1916-17. 1................ ....................

2....................................

3....................................

4....................................

6....................................

7. ...................................

8..-.-.-.....-.-.-.......-.-.........

9....................................

10....................................

11....................................

12....................................

13....................................

15...-.--.-...--..-.....-.-----..-....

16....................................

17....................................

18....................................

19....................................

20. ...................................

21....................................

22....................................

23....................................

24....................................

25....................................

26....................................

27....................................

28. ...................................

29. ...................................

30....................................

31....................................

Oct.

115

117

124

124

122

117

133

158

156

156

169

180

169

166

161

158

156

150

153

150

150

148

148

145

145

138

136

134

133

132

131

Nov..

131

128

128

128

128

128

128

124

124

128

126

124

122

122

122

122

122

122

122

117

119

124

124

126

126

128

124

124

122

119

Apr.

165

165

167

171

173

175

181

185

189

214

231

258

281

286

292

271

258

254

249

268

309

373

456

516

547

562

606

601

589

573

May.

562

578

608

666

672

710

810

958

1,070

1,140

1,250

1,400

1,480

1,750

2,190

2,350

2,030

1,710

1,520

1,480

1,480

1,520

1,680

1,830

1,830

1,790

1,790

1,870

1,950

1,990

1,910

June.

1,830

1,830

1,790

1,680

1,600

1,560

1,710

1,910

2,190

2,270

2,110

1,870

1,600

1,480

1,710

2,190

2,430

2,590

2,670

2,590

2,590

2,590

2,430

2,190

2,030

1,910

1,870

1,870

1,910

1,830

July.

1,680

1,560

1,560

1,600

1,640

1,500

1,400

i 1,200

1,100

1,100

1,030

873

824

749

666

666

684

612

542

511

465

414

355

348

298

258

244

231

216

Augv

210

177

142

149

139

129

103

f 105

{ 106

I 102

96

94

94

94

92

87

82

87

88

88

88

90

87

85

84

85

87

85

85

84

82

Sept.

84

82

80

78

81

81

81

80

78

81

82

82

85

85

85

85

85

85

82

82

82

84

96

106

117

120

120

120

120

120
112 . SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge in second-feet, of Big Wood River near Bellevue, Idaho, for the years 

ending Sept. 30, 1917 and 1918 Continued.

Day.

1917-18. 

I..........

2..........

3..........

4..........

5..........

6..........

7...........

8..........

9..........

10..........

11..........

12..........

13..........

14..........

15..........

16..........

17..........

18..........

19..........

20..........

21 ..........

22..........

23..........

24..........

25..........

26..........

27..........

28..........

29..........

30..........

31..........

Oct.

120

120

120

120

120

117

115

106

103

105

103

103

108

108

110

115

112

115

118

120

123

125

127

127

125

122

127

133

Nov. Jan.

110

127

136

107

1^7

136

127

115

116

JIG

115

110

102

94

Feb.

07

102

126

iqq

136

1 Af\

122

120

110

114

115

116

 IOQ

134

140

142

141

140

142

Mar.

144

1 AK

146

1OA

113

114

» 11 Q

120

122

115

120

124

155

OQQ

216

195

216

Oqfi

OCR

334

000

341

311

qjo

Apr.

qqa

315

01 Q

3^1

304

286

286

286

301

qQ7

qQ7

qO7

qnc

406

qnft

007

qco

^*w

qco

365

410

COO

635

591

K/TJ

K.91

492

511

Kft7

May.

635

749

oqi

1,010

}

Q4fl

caq

654

642

673

594

EEfi

511

466

434

402

OQE

Wi

' 376

qco

*2RA

369

qio

254

94.9

June.

qcc

4.PL9

769

{

007

1,100

1 OOA

1 480

1,520 

2,510

2 dfifi

2

qoA

2

1QA

1,980

1 940

1 QAfi

Qft9

1,820

1 840

1*860

1,080

1,780

1,620

1 460

462

392

July.

348

9Q7

250

OAO

1 ^Q

147

147

147

1 ^

147

139

139

10C

175

179

147

1 q*7

19ft

QQ

92

88

84

84

Aug.

90

QE

99

103

100

Oft

QC

' <M

92

OR

ftl

74

7<;

74

71

72

79

72

71

fiS

64

62

62

61

56

Sept.

55

54

F.E

EE

EE

54

54

EQ

E/7

EO

71

72

71

72

84

%

Q7

102

100

102

102

103

}

1 AR

-

an. , , . , , , , , , , , e. , , , , , , , , , , , , , , ar. , , , , 

10,12,14.16, 20,22,24,26,28. 30, Apr. 1,3,5.7,11,13,15,23,25, May 19, 21,25, 27,29, June 14,16,18,22,26, and 

Aug. 3,30,1918. No record obtained during periods for which no discharge is given. Braced figures show 

mean discharge for periods indicated.

Monthly discharge of Big Wood River near Bellevue, Idaho, for the years ending Sept. 30T

1917 and 1918.

Month.

1916-17.

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

1917-18.

July.......-.......----.--.----.-....................-..

Discharge in second-feet.

Maximum.

180 

131 

606 

2.350 

2,670 

1,680 

210 

120

133 

138 

142 

348 

635 

1,140 

2,540 

348 

103

Minimum

115 

117 

165 

562 

1,480 

216 

82 

78

103 

94 

87 

113 

286 

242 

245 

84 

56 

54

Mean.

144 

124 

319 

1,440 

2,030 

862 

103 

91.0

116 

118 

126 

182 

404 

626 

1,280 

157 

77.2 

75.9

Run-off in 

acre-feet.

8,850 

7,380 

19,000 

88,500 

121,000 

53,000 

6,330 

5,410

7,130 

7,260 

7,000 

11,200 

24,000 

38,500 

76,200 

9,650 

4,750 

4.520
SNAKE RIVER BASIN. 113 

BIG WOOD RIVER BELOW MAGIC DAM, NEAR RICHFIELD, IDAHO.

LOCATION. In sec. 18, T. 2 S., R. 18 E., half a mile below Magic dam of Idaho Irrigation Co. and 18 miles northwest of Richfield, Blaine County. No tributaries 

between dam and station.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. April 19, 1911, to September 30, 1918.

GAGE. Gurley water-stage recorder on right bank; installed April 20, 1916, to replace 

former Lallie recorder at same location; inspected by employees of Idaho Irrigation Co. Datum presumably unchanged since establishment of station.

DISCHARGE MEASUREMENTS. Made from cable about 10 feet above gage or by wading.

CHANNEL AND CONTROL. Bed composed of clean, coarse gravel and small boulders. 

Control of same material; somewhat shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year ending September 30, 1917, from water-stage recorder, 8.97 feet at 11 a. m. and 8 p. m. May 25 

(discharge, 3,840 second-feet); minimum stage, 1.42 feet midnight March 27-28 

to 11 a. m. March 29 (discharge, 14 second-feet).

Maximum stage recorded during year ending September 30, 1918, from waterstage recorder, 5.23 feet June 15 and 16 (discharge, 1,610 second-feet); minimum 

stage, 1.49 feet August 21 and 22 (discharge, 15 second-feet).

1911-1918: Maximum'stage recorded, 9.2 feet May 18, 1911 (discharge, 5,070 

second-feet); "zero discharge" reported February 3, 1915.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. No diversions are made by the Idaho Irrigation Co. immediately 

above station but numerous ranch diversions are made in the upper drainage 

basin, the largest quantity of water probably being used in the district around 

Hailey. Flood waters are stored in Magic reservoir just above station, and 

first diversion by the company is Richfield canal about 2 miles below.

REGULATION. Flow past station completely regulated by gates in outlet tunnel at 

Magic dam.

ACCURACY. Stage-discharge relation for stages above 1,130 second-feet changed 

during high water of latter part of May, 1917. Three rating curves used, the first 

applicable October 1, 1916, to May 25, 1917, well defined between 90 and 1,600 

second-feet and extended outside those limits, the second applicable May 26 

to September 30, 1917, well defined between 90 and 3,200 second-feet, and the 

third applicable October 1, 1917, to September 30, 1918, well defined within 

range of stage which occurred and differing from previous curves only in that it 

better averages later discharge measurements. Operation of water-stage recorder 

satisfactory except during period November 26 to December 1, 1916. Daily 

discharge ascertained by applying to rating table mean daily gage height obtained 

by inspection of recorder graph, except for period during which recorder was not 

operating for which it was estimated from record of gate opening in Magic dam. 

Records good.
114 SURFACE WATER SUPPLY, 1918, PART XII B.

Discharge measurements of Big Wood River below Magic dam, near Richfield, Idaho, 

during the years ending Sept. 30, 1917 and 1918.

Date.

1917. 

May 3

18

29

12

20

22

26

July 5

17

17

28

31

18

23

29

1918.

Mar. 28

30

Made by 

W. N. McConnela.....

F. M. Atkinson........

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

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

Armstrong and Denecke

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

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

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

Ga<*e 

height.

Feet. 

2.42

7 %

6.32

6.69

6 CO

7.42

6.92

6.19

5.06

5.08

5.08

4.94

4 84

4.78 

4.62

4.48

4.39

4.31

2.01

2 nO

Discharge.

Sec.-ft. 

138

3

0 en

2,440

2,610

3.020

2,770

2,320

1,400

1,630

1,530

1,510

1,480

1 OQ/1

1,400 

1,230

1,140

i ijn

1,090

64

C«

Date.

1918. 

Mar. 31

20

26

14

24

24

July 20

24

on

Aug. 4 

8 12

15

21

23

28

Made by 

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

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

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

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

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

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

.....do.......:.........

S. S.Carroll 6. .........

Mathews and Morrill. . .

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

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

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

Gaffe 

height.

Feet. 

2.02

2.38

2.30

2.56

2.99

3.03

3.98

4.54

4.80

5.22

5.04

4.69

4.67

4.68

1.82 

2.25

3.51

1.49

1.49

1.64

3.53

Discharge.

Sec.-ft. 

61

134

114

157

292

319

798

1,210

1.370

1,630

1,550

1,340

1,330

1,370

35.3 

107

555

14.7

12.7

23.1

560

a Employee of Idaho State engineer. 6 Employee of Idaho Irrigation Co.

Daily discharge, in second-feet, of Big Wood River below Magic dam, near Richfield, 

Idaho, for the years ending Sept. 30, 1917 and 1918.

Day.

1916-17. 

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

2..............

3..............

4..............

6..............

7.. ............

8..............

9

10..............

11....:,........

12..............

13-..-----.......

15..............

16..............

17--.--.-.......

18..............

19..............

20-...---..-....

21..............

22. .............

23..............

24..............

25..............

26..............

27..............

28..............

29..............

30-.---.........

31..............

Oct.

76

65

59

56

53

54

58

58

40

68

88

136

157

159

159

159

159

159

152

143

141

128

128

128

109

96

96

98

98

98

98

Nov.

98

98

82

Qn

90

90

90

90

88

88

90

90

90

90

90

90

90

Qfl

88

96

206

206

330

OOA

275

Dec.

76

90

90

Qfl

Qfl

Qfl

on

90

on

90

90

90

90

on

90

90

90

on

Qn

Qn

Qfl

90

90

Qfl

on

Qn

90

90

90

90

90

Jan.

90

90

90

90

90

on

QO

QO

92

Q9

QO

QO

QO

93

no

0°.

Q3

QO

93

QO

QO

93

QO

93

QO

0°.

93

QO

0°.

QO

93

Feb.

no

QQ

0°.

93

QO

95

OK.

QC

95

79

63

fi9

AO

55

K.9

K.9

co

52

CO

52

CO

CO

54

54

KA

Mar.

54K.I

54

54

54

54

54

54

54

54

54

CO

Co

K.9

K.9

51

51

51

51

51

51

47

34

Oft

14

00

58

102

Apr.

102

i no

ifto

IfiO

103

ino

103

103

i r»°.

103

103

103

ino

103

103

136

1 00

1 9fl

11C

1 9rt

124

i °.n

134

134

May.

136

138

141

141

141

11^

412

1,230

1 74ft

2,500

2

fiQA

2,740

2,860

3,050

3

0Qfl

3 A on

3,170

2

ROA

2

AAC\

2

oor*

2 440

2 Q(\f\

3,610

2,940

2 7 cn

2 con

3,060

June.

2,520

2,400

2,220

2 040

1,910

1 Q1O.

2,040

2,520

2,940

2,520

2 inn

1 7Qfl

1,750

1,980

2 fi4.n

3 ftfin

S

OCn

3 ion

2,700

2.760

2 con

2,400

2 OCA

2

090

1 QOA

i non

2,040

1 

' 980

July.

1,720

1,660

1,560

1,590

1,530

1,390

1,530

1,490

1 °.Qfl

1,360

1,430

1,460

1 d.QC\

1 f\Q{\

1,620

1,620

1,590

1,620

1,620

1,620

1,620

1,620 i t^Qfl

1,560

1,560

1,490

1 490

1,430

Aug.

1,430

1,390

1,390

1,360

1,330

1,330

1,300

1,300 i °.rin

1,260

1 1C\(\

1,300

1,300

1 Ofifl

1,260 i 9°.n

1,200

1,160

1,160

1,160

1,130

1,130

1,130

1,100

1,100

i nfift

1,030

Sept.

1,030

1,030

1,030

998

998

964

964

964

939 Qon

895

860

840

806

759

746

739 "7V>

739

759

779

752

739

726

726

707

676

576

385
SNAKE RIVER BASIN. 115

Daily disharge in second-feet of Big Wood River below Magic dam, near Richfield, 

-Idaho, for the years ending Sept. 30, 1917 and 1918 Continued.

Day.

1917-18. 

I....'..........

2..............

4..............

7... ...........

8..............

9..............

11..............

12..............

13..............

15..............

16..............

17..............

18..............

19..............

20..............

22..............

23..............

25..............

26..............

27. .............

28. .............

23..............

30..............

31..............

Oct.

58

58

63

69

86

86

84

94

111

117

117

117

117

117

' 117

117

117

117

115

115

115

100

100

100

100

Nov.

100

100

89

63

69

69

69

69

69

69

69

69

69

69

69

69

69

69

69

69

69

69

69

70

70

93

105

Dec.

125

202

202

202

OftO

277

277

277

977

273

163

163

163

163

163

Qfi

84

84

72

66

66

66

66

66

66

66

66

Jan.

66

66

66

66

66

68

68

68

68

68

68

69

69

AQ

69

69

69

69

69

69

69

69

69

4Q

49

49

49

49

49

49

Feb.

49

49

49

49

49

49

49

49

50

rA

CA

50

KA

50

50

Vi

50

TA

TA

50

50

KA

50

50

CA

50

Mar.

50

52

52

52

52

52

52

CO

CO

52

52

52

52

52

52

52

52

CO

53

53

53

54

KA

57

60

60

Apr.

66

113

105

107

117

131

131

119

111

113

113

113

119

129

159

163

205

230

292

334

ATQ

460

552

May.

746

805

853

934

1,090

1 190 l'-190

1,190

1,190

1,220

1,220

1,250

1,310

1,390

1,390

1,360'

1 360

1,360

1,390

1,410

1,390

1,390

1,310

June.

1,220

1,220

1,160

1,120

1,160

1,220

1,280

1,280

1,500

1,550

1,610

1,610

1,610

1,550

1,550

1,550

1,550

1,500

1,500

1,470

1 440

1,410

1,410

326

July.

210

219

292

1,280

1,360

1,310

1,280

1,250

1,250

1,250

1,280

1,280

1,280

1,280

1,280

1,310

1,330

1,330

1,330

1,330

1,310

1,330

1,330

1,330

1 330

1^330

Aug.

1,330

1,330

50

16

16

16

24

44

100

98

151

581

670

664

475

207

15

15

15

20

23

22

22

24

27

27

27

Sept.

27

98

288

210

189

149

121

63

45

57

62

72

80

77

77

79

86

86

86

86

86

86

$6

86

80

NOTE. Braced figure shows m«an discharge for period iudicated. Discharge estimated Aug. 4, 1918, 

on account of unsatisfactory operation of recorder.

Monthly discharge of Big Wood River below Magic dam, near Richfield, Idaho, for the 

years ending Sept. SO, 1917 and 1918.

Month.

1916-17.

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

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

1917-18.

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

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

Discharge in second-feet.

Maximum.

159 

330 

90 

93 

95 

102 

136 

3,610 

3,250 

1,720 

1,430 

1,030

3,610

117 

105 

277 

69 

50 

60 

552 

1,410 

1,610 

1,360 

1,330 

502

1,610

Minimum.

40

82

90 

52 

14 

102 

136 

1,750 

1,360 

1,030 

385

14

58 

63 

66 

49 

49 

50 

66 

746 

326 

210 

15 

27

15

Mean.

106 

150 

89.5 

92.2 

72.5 

50.9 

110 

2,120 

2,340 

1,550 

1,220 

814

731

102 

77.2 

151 

63.6 

49.7 

53.1 

190 

1,240 

1,380 

1,200 

235 

132

409

Run-off in 

acre-feet.

6,520 

8,930 

5,500 

5,670 

4,030 

3,130 

6,550 

130,000 

139, 000 

95,300 

75, 000 

48,400

528,000

6,270 

4,590 

9,280 

3,910 

2,760 

3,260 

11,300 

76, 200 

82, 100 

73,800 

14,400 

7,860

296,000
116 SURFACE WATER SUPPLY, 1918, PART XII B.

BIG WOOD RIVER BELOW NORTH GOODING CANAL, NEAR SHOSHONE, IDAHO.

LOCATION. In sec. 15, T. 4 S., R. 18 E., 300 yards below headworks of North Gooding 

canal, 13 miles northeast of Shoshone, Lincoln County, and 14 miles below Magic 

dam.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. January 1, 1911, to September 30, 1918.

GAGE. Vertical staff on right bank installed July 8, 1918, at a datum 6.00 feet higher 

than previous gages. Prior to that date a vertical staff gage on left bank directly 

opposite, was used until about May 14,1917, when it was destroyed by high water. 

A temporary vertical staff gage was installed May 15, 1917, at same location but 

at a datum 7.51 feet higher and was used until July 9,1917. Thereafter, until 

July 8,1918, a new permanent staff gage was used; at same location and datum as 

gage used prior to about May 14, 1917. All gage readings made on the temporary 

staff gage were corrected to former datum. Gage read by employees of Idaho 

Irrigation Co.

DISCHARGE MEASUREMENTS. Made by wading or from cable 100 feet below gage. 

Measuring conditions are unfavorable on account of rough cross-section and 

irregular velocities.

CHANNEL AND CONTROL. Channel cut in lava rock. Stream bed rough. Control 

somewhat shifting.

EXTREMES OP DISCHARGE. Maximum stage recorded during year ending September 

30, 1917, 13.4 feet May 12-14 (discharge,. 1,690 second-feet); minimum stage, 

7.27 feet September 30 (discharge, 30 second-feet).

Maximum stage recorded during year ending September 30, 1918, 9.25 feet 

May 6 (discharge, 242 second-feet); stream reported dry August 8-14, 22-31, 

and September 1 and 2.

1911-1918: Maximum stage recorded, 15.0 feet May 18, 1911 (discharge, 3,180 

second-feet); minimum discharge, no flow, February 9-14, 22, and March 5 and 6, 

1911, October 19, 20 and 26,1912, August 8-14, 22-31, and September 1 and 2, 1918.

ICE. Observations discontinued during winter.

DIVERSIONS. Station is below all diversions of Idaho Irrigation Co. North Gooding 

and Richfield canals divert between station and Magic dam.

REGULATION. Flow past station is regulated by operation of gates at Magic dam and 

headgates of North Gooding and Richfield canals.

ACCURACY. -Stage-discharge relation practically permanent, but owing to changes in 

gage datum several rating curves were used. Standard rating curve used April 14, 

1917, to July 7, 1918, well defined between 25 and 980 second-feet; was used 

direct April 14 to May 14,1917; three parallel curves used for remainder of period, 

applicable May 15 to July 8 and July 9 to December 13, 1917, and March 23 to 

July 7,1918. Curve used July 8 to September 30,1918, fairly well defined below 200 

second-feet. Gage read to hundredths once or twice daily except during periods 

noted in footnote to table of daily discharge. Daily discharge ascertained 

by applying daily or mean daily gage height to rating table except as indicated 

in footnote to table of daily discharge. Records fair except those for days on 

which headgates at dam were manipulated, which are subject to considerable 

error.

COOPERATION. Gage-height record furnished by Idaho Irrigation Co. Discharge 

measurements furnished by Idaho Irrigation Co. and Idaho State engineer.
SNAKE RIVER BASI^T. 117

Discharge measurements of Big Wood River below North Oooding canal, near Shoshone, 

Idaho, during the years ending Sept. 30, 1917 and 1918.

Date.

1917.

June 26

28

July 9

11

18

23

2

6

8

17

17

17

21

99

24

30

Made by 

W. N. McConnelo.....

Atkinson and Chapman

Armstrong and De- nocke ^

F. M. Atkinson........

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

Ga<;e 

height.

Ft.

7.87

11.25

10.20

8.28

8.34 

8.74

9.01

8.63

8.12

7 90

7.67

7 69

7.68

7.60

7 52

7 54

7.56

Discharge

Sec. -ft,. 

50

735

116

122

209

157

130

90

70

51

KO

51

00 A

46.2

49 4

Date

1917.

Sept. 8

16

1918.

Mar. 23

179*;

27

May 10

July 3

1 ft

29

Aug. 18

Made byChapman and Wallis » .

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

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

MorriUft... ............

S.S.Carroll &..........

Gage 

height.

Ft. 

7.52

7.53

7.51

7.30

7.21 

7.11

7.33

7.72

8.04

8.99

8.68

8.65

2.11

1.88

1.86

1.93

2.40

Discharge.

Sec.-ft. 

44.2

47.5

40.1

25.0

27.1 

20.9

30.1

64

79

195

162

155

72

59

59

58

105

a Employee of Idaho State engineer. 6 Employee of Idaho Irrigation Co.

Daily discharge, in second-feet, of Big Wood River below North Gooding canal, near 

Shoshone, Idaho, for the years ending Sept. 30, 1917 and 1918.

Day.

1916-17. 

1. ........

2.........

5.........

6.........

7.........

8.........

9.........

10.........

11.........

12..........

13.........

14.........

15. ....... .

Apr.

355

248

May.

43

43

43

43

48

122

939

1,170

1,170

1,530

1,690

1,690

1,690

47R

June.

OKQ

1,120

1,030

1,070

1,120

1,220

1,530

1,420

1,030

813

697

July.

259

734

160

100

116

110

116

160

188

99fi

Aug.

1 *v*

i/in

134

134QC;

QC;

95

76

67

67

67

63

63

63

63

Sept.

47

46

47

47

46

45

45

45

AK

46

Day.

1916-17. 

16.........

17.....--..

10

10

20... ------

21 .........

22....---..

23........

24...--....

25 .........

26.........

97

28...-.--..

29.........

30....--...

31.........

Apr.

140

76

67

104

140

112

85

80

76

44

37

37

37

40

May.

475

593

561

400

334

295

295

277

355

593

626

593

593

259

475

475

June.

697

1,030

1,530

1,320

1,420

1,220

939

1,120

983

773

773

593

400

334

626

July.

226

180

180

173

210

210

210

210

218

210

180

195

195

180

180

173

Aug.

59

59

49

48

48

50

47

47

48

47

47

47

48

47

47

48

Sept.

44

45

45

45

46

45

44

45

45

44

AA

47

45

30
118 SURFACE WATEE SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, on Big Wood River below North Gooding^ canal, near 

Shoshone, IdAo, for the yeirs ending Sept. 30, 1917 and 1918 Continued.

Day.

1917-18. 

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

5...................

6...................

8.. .................

0

11...................

12...................

13...................

14...................

15...................

16...................

17...................

18...................

19

20...................

21...................

22...................

23...................

24...................

or:

26...................

28...................

Ort

31...................

Oct.

30

19

10

20

21

34

33

31

40

51

CO

51

52

CO

53

53

53

54

54

54

54

57

51

51

CO

53

KA

55

Sfi

Nov.

{ 46

37

36

37

21

37

07

37

07

<>7

38

31

01

Of

07

37

37

36

31

31

31

15

26

00

38

44

Dec.

40

37

OO

44

40

40

40

so

37

07

97

37

35

Mar.

........

........

26

Apr.

1

38

35

25

26

28

30

33

27

30

33

30

30

30

30

32

32

30

32

32

32

30

58

58

76

90

90

90

May.

90

122

140

146

226

242

218

226

210

202

202

195

188

173

173

173

173

166

166

160

160

153

146

153

146

153

153

153

153

160

153

June.

100

95

95

95

95

95

105

146

146

146

140

166

218

226

226

234

242

210

226

218

210

202

202

202

210

188

180

188

173

234

July.

140

160

160

146

153

105

122

76

67

67

68

68

68

62

63

63

56

59

56

58

56

62

62

62

72

60

60

63

49

49

44

Aug.

50

49

49

21

15

4S

7.6

16

116

105

105

105

50

4.8

 :::;-

Sept.

76

76

76

76

2.0

1.6

10

21

16

15

14

15

24

28

42

42

40

41

40

46

47

47

50

50

49 49

47

48

NOTE. Discharge interpolated on account of missing gage readings, Apr. 15,19,21,23, Aug. 19, Oct. 26-29, 

Nov. 26, Dec. 1, 1917, and Sept. 26, 1918; estimated Nov. 1-3, 1917, Apr. 1-4 and Aug. 15,1918, on basis of 

water-master's report. Stream reported dry, Aug. 8-14, 22-31, and Sept. 1 and 2,1918. No record obtained 

during periods for which no discharge is given. Braced figures show mean discharge for periods indicated.

Monthly discharge of Big Wood River below North Gooding canal, near Shoshone, Idaho, 

for the years ending Sept. 30, 1917 and 1918.

Month.

1917.

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

1917-18.

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

Discharge in second-feet.

Maximum.

455 

1,690 

1,530 

1.220 

153 

47

57

59 

90 

242 

242 

160 

116 

76

Minimum.

37 

43 

218 

100 

47 

30

19 

15 

35 

25 

90 

95 

44 

0 

0

Mean.

101 

579 

876 

297 

69.7 

44.8

45.7 

35.6 

40.1 

40.7 

170 

174 

79.2 

23.9 

36.3

Run-off in 

acre-feet.

3,410 

35, 600 

52, 100 

18, 300 

4,290 

2,670

116,400

2,810 

2,120 

1,030 

2,420 

10,500 

10,400 

4,870 

1,470 

2,160
SNAKE RIVER BASIN. 119

BIG WOOD RIVER NEAR GOODING. IDAHO.

LOCATION. In sec. 21, T. 6 S., R. 14 E, at Cleek's ranch, 3J miles above bridge on 

upper road between Bliss and Hagerman, 5 miles above diversion dam for King 

Hill project, and 6 miles southwest of Gooding, Gooding County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. March 26, 1916, to September 30, 1918.

GAGE. Vertical staff on right bank bolted to rock ledge; read by Mrs. I. P. Cleek.

DISCHARGE MEASUREMENTS. Made by wading or from cable a short distance above 

gage.

CHANNEL AND CONTROL. Bed composed of lava rock, boulders, and coarse gravel; 

practically permanent. Control formed by well-defined bed of lava; deposition 

of gravel occasionally causes slight shifts.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 2.84 feet March 

21 (discharge, 290 second-feet); stream reported dry September 5-13.

1916-1918: Maximum stage recorded, 7.60 feet May 26, 1917 (discharge. 2,320 

second-feet). Stream reported dry January 17-22, 1917, during ice period, and 

September 5-13, 1918.

ICE. Stage-discharge relation seriously affected by ice.

DIVERSIONS. Below all diversions of the Twin Falls North Side Land & Water Co. 

and above Big Malad Springs. Justice and Croco ditches (combined capacity, 

about 15 second-feet) divert 3 miles below gage; a few second-feet are occasionally wasted into river about 2 miles below gage.

REGULATION. Flow regulated by diversions above station.

COOPERATION. Field data furnished by Twin Falls North Side Land & Water Co.

Discharge measurements of Big Wood River near Gooding, Idaho, during the year ending

Sept. 30, 1918.

Date.

Apr. 12

25

Made by Gage 

height.

Feet. 

2.03

1.96

.90

Discharge.

Sec.-ft.

13.6

Date.

July 26

Sept. 17

Made by 

William West.........

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

Gage 

height.

Feet. 

1.46

.92

.12

Discharge.

Sec.-ft. 

54.7

12.8 ".3

» Water-master.

& Hydrographers, Twin Falls North Side Land & Water Co.

« Estimated.
120 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Big Wood River near Gooding, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9..............

10..............

11..............

12....... .

13..............

14..............

15..............

16..............

17..............

18..............

19..............

20. .............

21............ .

22. ....

23..............

24.............

25..............

26..............

27..............

28..............

29..............

30..............

31..............

Oct.

8.7

2.9

30

41

39

36

34

33

32

33

37

35

35

76

84

92

100

100

97

100

100

103

100

101

103

95

103

93

93

87

91

Nov.

95

93

90

90

89

69

67

63

64

64

66

68

£Q

69

43

46

t\7

59

CQ

58

59

AQ

46

JO

44

CQ

62

Dec.

62

67

60

90

67

7fi

80

qq

186

195

1 QC

010

204

231

240

IfiQ

152

160

160

127

199

116

114

109

117

109

Jan.

109

109

116

108

Q7

97

117

101

122

111

64

nq

90

QQ

C7

* 87

07

07

87

07

87

QQ

90

90

Q9

92

Q9

on

QQ

8.7

87

Feb.

87

87

84

81

cn

78

7c

79

66

63

CO

CQ

KA

48

44

47

48

36

33

00

48

54

KA

54

54

55

66

Mar.

64

101

109

152

160

 tOC

101

106

109

1 1Q

116

279

213

152

160

160

195

240

269

290

901

178

169

169

195

186

144

106

194

Apr.

103

144

195

160

144

108

117

100

105

111

133

116

on

72

Of

103

76

113

101

54

23

17

17

15

14

11

16

13

10

May.

7.4

5.2

7.2

9.4

25

68

on

69

78

78

7Q

82

52

41

27

22

27

23

28

32

23

18

12

13

9.4

12

15

52

80

67

95

June.

119

69

22

35

22

16

10

4.9

4.2

3.6

3.4

3.4

3.5

18

26

48

57

60

55

52

52

80

82

100

106

108

93

84

76

72

July.

59

38

23

17

11

33

30

14

6.0

5.0

5.5

5.2

5.2

4.4

4.0

4.2

4.5

3.8

4.5

3.8

5.0

10

18

17

18

14

14

13

9.4

6.4

6.2

Aug.

7.2

31

24

17

17

17

9.4

1.9

1.6

1.5

1.6

1.6

1.7

1.8

1.8

1.8

1.6

7.2

11

10

11 _

11

4.6

3.8

.9

.9

2.2

3.8

2.2

.6

.5

Sept

0.4

.4

.2

.2

.0

.0

.0

.0

.0

.0

.0

.0

.0

.2

.4

.6

.6

1.3

2.2

1.9

2.1

1.4

18

18

18

18

18

22

20

20

NOTE. Stage-discharge relation affected by ice Jan. 12 to Feb. 26; discharge estimated from daily gage 

heights, weather records, and observer's notes. Discharge interpolated Oct. 31, June 6, 7, Aug. 15, and 

Sept. 30.

Monthly discharge of Big Wood River near Gooding, Idaho, for the year ending Sept. 30,

1918.

Discharge in second-feet.

Maximum.

October. ............................................... 103

November .......................... ....... ...... 95

December. ...... ........ . 279

January. ......................... ...... .......... 122

February ................'....................;........ 87

March........................ . . ... 290

April................................................... 195

June ................................ .................. 119

July. ................................................... 59

September........................... .................1 20

The year....................... ................. 290

Minimum.

2.9 

43 

33 

64 

33 

64 

10 

5.2 

3.4 

3.8 

.5 

.0

.0

Mean.

68.2 

65.2 

144 

94.5 

60.0 

164 

83.8 

40.2 

49.5 

13.3 

6.75 

5.46

66.5

 Run-off in 

acre-feet. '

4,190 

3,880 

8,850 

5,810 

3,330 

10,100 

4,990 

2,470 

2,950 

818 

415 

325

48,100

BIG WOOD SLOUGH AT HAILEY, IDAHO.

LOCATION. In sec. 9, T. 2 N., R. 18 E., at highway bridge one-eighth of a mile northeast of steel highway bridge across Big Wood River and one-eighth of a mile 

southwest of Hailey, Blaine County.

RECORDS AVAILABLE. June 11, 1915. to September 30, 1918.
SNAKE RIVER BASIN. 121

GAGE. Vertical staff spiked to downstream side of highway bridge; installed April 

4, 1917; read by employee of Idaho Irrigation Co. Prior to April 4, 1917, an 

inverted stadia board at same location was used; 2.0-foot mark on stadia board 

corresponds to 2.0-foot mark on present gage.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. One channel at all stages. Bed composed of sand and 

gravel. Banks covered with brush and'subject to overflow. Control is top of a 

wood stave water pipe laid in bed of stream about 15 feet below gage.

EXTREMES OP DISCHARGE. Maximum stage recorded during year ending September 

30, 1917, 2.62 feet May 7 (discharge, 244 second-feet); minimum stage, 3.25 feet 

(inverted gage) November 15 (discharge, 2.6 second-feet).

Maximum discharge recorded during year ending September 30, 1918, 197 second-feet August 15-17; minimum stage, 0.70 foot December 17 and February 1 

(discharge, 2.0 second-feet). A lower discharge may have occurred during 

period of ice effect, February 2-5.

1915-1918: Maximum stage recorded, 2.62 feet May 7, 1917 (discharge, 244 second-feet); minimum discharge, 2.0 second-feet December 17, 1917, and February 

1, 1918 (a lower discharge may have occurred during period of ice effect, February 

2-5, 1918).

ICE. Stage-discharge relation not seriously affected by ice.

DIVERSIONS. None.

REGULATION. The amount of water passing gage is affected by load at power plant 

half a mile upstream, and there is considerable diurnal fluctuation. The main 

river is affected inversely by any such regulation, so that the accuracy of the 

summation of the two records is presumably affected only slightly by this factor.

ACCURACY. Stage-discharge relation not permanent; affected by ice December 27, 

29, and 30, 1916, January 13-18, and 22, 1917, and January 12-16, and February 

2-5, 1918, and by debris on control May 28 to June 8, 1917. Curve used October 

1,1916, to August 8,1917, well defined between 10 and 165 second-feet; was used direct except for period May 28 to June 8, 1917, for which the indirect method for 

shifting control was used. Curve used August 9, 1917, to February 1, 1918, fairly 

well defined between 10 and 170 second-feet. Curve used February 6 to September 30,1918, well defined between 10 and 180 second-feet; was used direct except 

for period April 25 to July 21, 1918, for which the indirect method for shifting control was used. Gage read to hundredths once daily. Daily discharge ascertained 

by applying daily gage height to rating table except for periods for which the 

shifting-control method was used; except for periods of ice effect for which it was 

ascertained by means of gage heights, weather records, and comparison with flow 

of main river; and except as indicated in footnote to tables of daily discharge. 

Records fair prior to April 1, 1918; thereafter good.

COOPERATION. Gage-height record furnished by Idaho Irrigation Co. Discharge 

measurements furnished by Idaho Irrigation Co. and Idaho State engineer.

Big Wood Slough is a natural channel of Big Wood River that is utilized also as a 

tailrace for the Hailey power plant. The record from this station represents a portion 

of the natural flow of Big Wood River and that in conjunction with the record at the 

near-by station on the main river will show the entire flow of the river at this point. 

For record of station on the main river see page 105. For record of combined flow 

of Big Wood River and Big Wood Slough see pages 108 and 109.
122 SURFACE WATER SUPPLY, 1918, PART XII B.

Discharge measurements of Big Wood Slouqh at Hailey, Idaho, during the years ending

Sept. 30, 1917 and 1918.

Date

1917. 

May 31 

June 18 

27 

July 7 

16 

30 

Aug. 14 

16 

21 

27 

28 

Sept. 4 

14

Made by 

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

Armstrong c andCrosbye

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

Armstrong and Deneckec

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

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

Ga^e 

height.

Fee 

(a 

(a

\.

(0

(a

8 

82. 

2.

t. 

1

22 

09 

93

28 

36

Discharge.

Sec- ft. 

138 

154 

22.3 

16.1 

6.1 

2.6 

112 

111 

106 

49.6 

48.0 

164 

165

Date.

1918. 

Apr. 22 

May 1 

June 10 

Aug. 3 

7 

21 

Sept. 15 

16

Made by 

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

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

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

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

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

Gage 

height.

Feet. 

0.89 

.94 

1.41 

2.10 

2.10 

2.09 

1.19 

1.15

Discharge.

Sec-ft. io.i

9.8 

35.7 

173 

173 

161 

24.2 

22.0

« Measurement referred to a temporary staff gage in tailrace of power plant. 

6 Employee of Idaho State engineer, 

c Employee of Idaho Irrigation Co.

Daily discharge, in second-feet, of Big Wood Slough at Hailey, Idaho, for the years ending

Sept. 30, 1917 and 1918.

Day.

1916-17. 

1....

2........ .

3..............

4...... ...

5..............

6..............

7... ...........

8....... ... .

9. .

10..... .

11.....

12

13.....

14..

15...... .

16..... .

17........... .

18... .

19......

20..............

21..

22.....

23...

24....

25..... .

26....... .....

27..............

28..............

29....... ... .

30..............

31..... ........

Oct.

14

14

14

14

14

14

15

15

15

15

15

17

17

17

17

17

20

20

20

20

20

20

20

20

21

21

21

21

19

19

Nov.

20

20

9n

20

21

20

20

20

25

27

24

10

15

8.9

2.6

3.0

3 n

21

4.4

4.4

3.2

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

Dec.

2 Q

2.9

3

n

3

n

3

n

40

31

OK

OJ.

137

110

5 7

3

0

3.8

4.4

190

184

184

165

165

174

184

184

170

165

}l50

156

Jan.

174

174

174

174

174

174

174

174

174

130

146

184

165

146

174

174

165

165

165

140

Feb.

165

165

165

165

165

165

165

165

165

165

 ifi^

146

165

165

184

165

Mar.

146

137

137

165

IfiK

165

165

146

137

1 t^fi

165

146

1 37

137

137

1Afi

107

84

QQ

102

102

81

102

 72

78

70

78

Apr.

66

78

70

63

76

78

78

80

80

107

107

108

110

110

310

OS

86

126

93

128

146

165

184

60

74

EQ

K.Q

60

May.

60

194

204

204

204

244

124

124

165

184

184

146

ICE

184

194

97

22

OQ

91

21

23

21

20

21

OQ

174

1 ^R

156

June.

146

156

156

1 f^fi

165

174

174

128

128

128

14ft

146

1Afi

146

124

19ft

117

93

128

124

99

19

14

21

July.

19

18

12

18

17

12

14

26

14

14

18

1ft

21

1 1

8.9

6.7

5.5

6.0

5.5

4.9

4.9

4 9

4 Q

4.9

4.9

4.9

5

K

5.5

5.5

5.5

5.5

Aug.

5.5

5.5

5

K

6.0

6.0

8.5

12

15

61

84

71

KG

Oft

96

QC

102

117

110

102

102

ftft

102

i n9

106

111

116

117

124

170

170

Sept.

170

154

162

154

154

154

147

147

154

154

1 %A

162

170

162

154

1 f»9

147

162

162

154

177

170

162

162

1 fi.9

162

162

162
SNAKE EIVEE BASIN. 123

Daily discharge, in second-feet, of Big Wood Slough at Hailey. Idaho, for the years ending 

Sept. 30, 1917 and 1918 Continued.

Day1917-18. 

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

2..

3........

4.............

5.... .. 

6..

7.... .....

8............

9.............

10.............

11.. ....

12.... ....

13.............

14.............

15..............

16............

17.............

18.............

19..............

20............

21.......... .

22.............

23.............

24.......... .

25............

26.............

27.............

28..............

29.............

30..............

31..............

Oct.

162

162

162

154

154

147

147

147

147

147

147

147

147

154

147

154

154

162

114

111

108

105

114

114

132

140

140

140

132

140

140

Nov.

132

132

132

132

140

i<tn

132

132

132

140

132

132

132

1Q

19

17

17

17

19

15

132

132

124

124

124

124

162

162

162

162

Dec.

162

154

147

147

154

154

147

147

147

147

147

147

147

85

82

42

2.0

3.3

3.3

3.3

3.3

3.3

2.6

3.2

2.9

3.0

3.0

3.0

2.9

3.0

2.9

Jan.

3.0

3.0

2.9

2.9

2.9

2.6

2.8

2.8

2.6

2.4

2.3

9 9

3.0

3.0

2.9

2.8

2.6

2.4

2.5

2.5

2.9

2.8

2.5

2.4

4.4

2.6

2.3

Feb.

2.0

1 3.0

20

17

11

8.2

11

10

10

10

7.0

6.4

9.7

11

9.7

7.0

7.9

8.0

8.2

9.7

8.5

7.0

10

8.2

7.0

Mar.

9.1

9.7

9 7

10

10

7.0

7.6

8.2

8.8

9.4

10

9

0

9.7

9 4

Q 1

9 A

11

12

12

13

14

16

16

18

19

19

14

10

8.2

8.2

13

Apr.

13

12

9.4

9.4

8.2

8.8

8.8

9.4

7.0

8.2

9.4

9.4

9.4

9 9

9.1

8.8

8.2

8.2

8.2

8.8

9.7

11

11

11

10

9,4

8.8

8.5

10

May.

9.4

12

15

16

18

14

10

8.2

7.0

5.9

5.9

6.4

7.0

10

5.9

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.9

5.3

5.3

5.3

6.4

7.6

June.

8.2

11

13

16

16

21

21

21

21

36

54

54

74

62

32

16

12

23

19

20

21

26

31

26

21

20

20

16

11

10

July.

8.8

10

9.7

9.8

10

10

14

17

19

21

27

27

28

14

16

17

102

118

120

124

120

156

144

144

144

140

140

140

140

135

140

Aug.

144

144

156

150

144

144

169

169

169

169

183

169

169

169

197

197

197

68

156

169

169

169

169

156

156

183

183

183

183

183

23

Sept.

18

24

24

26

26

26

25

26

21

25

26

24

24

23

24

22

20

47

49

47

19

20

21

20

20

19

18

18

17

20

NOTE. Discharge interpolated on account of missing gage readings, Nov. 26 and Dec. 23,1916, Nov. 25, 

Dec. 2 and 16,1917, Jan 21, Feb. 21, Mar. 7-10,12,17,20, 24, 27, Apr. 10,14, 27, May 4, 21, 30, June 2, 3, 8, 20, 

22, 26, 28, July 4, and Aug. 4, 1918. Discharge estimated on account of unreliable gage height, Dec. 17, 

1916. Braced figures show mean discharge for periods indicated.

Monthly discharge of Big Wood Slough at Hailey, Idaho, for the years ending Sept. 30,1917

and 1918.

Month.

1916-17.

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

September, ............................................

1917-18.

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

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

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

Discharge in second-feet.

Maximum.

21 

27

184 

165 

184 

244 

174 

26 

170 

177

244

162 

162 

162

20 

19 

13 

18 

74 

156 

197 

49

The year. ........................................ 197

Minimum.

14 

2.6 

2.9

128 

72 

59 

20 

14 

4.9 

5.5 

147

2.6

105 ' 

15 

2.0

7.0 

7.0 

5.3 

8.2 

8.8 

23 

17

Mean.

17.5 

11.6 

101 

160 

162 

129 

95.4 

124 

125 

10.7 

79.3 

159

97.4

141 

109 

71.0 

2.67 

8.45 

11.3 

9.35 

8.07 

25.1 

73.1 

161 

24.6

54.2

Run-off 

in 

acre-feet.

1,080 

690 

6,210 

9,840 

9, CX30 

7,930 

5,680 

7,620 

7, 440 

658 

4,880 

9,460

70,500

8,670 

6,490 

4.370 

164 

469 

695 

556 

496 

1,490 

4,490 

9,900 

1,460

39,200

82374 22 WSP 483 9
124 SURFACE WATER SUPPLY, 1918, PART XII B. 

CAMAS CREEK NEAR BLAINE, IDAHO.

LOCATION. In sec. 15, T. 1 S., R. 16 E., 500 feet below sheep bridge, a quarter of a 

mile north of Macon siding on Central Idaho branch of Oregon Short Line Railroad, 1J miles below Malad Bridge of Central Idaho Railroad, 2J miles above 

backwater of Magic reservoir, and 4 miles southeast of Blaine, Blaine County. 

No tributaries or diversions between station and Magic reservoir.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. May 9, 1912, to September 30, 1918. Results of discharge 

measurements made in 1911 by Idaho Irrigation Co. are also available.

GAGE. Gurley water-stage recorder on left bank; installed June 1, 1916, to replace 

Lallie water-stage recorder at same location which had been used prior to that 

date. Location and datum of gage unchanged since 1912. An employee of 

Idaho Irrigation Co. or of Idaho State engineer acts as observer.

DISCHARGE MEASUREMENTS. Made from the sheep bridge or by wading.

CHANNEL AND CONTROL. One channel at all stages. Bed of stream rocky but control 

somewhat shifting.

EXTREMES OP DISCHARGE. Maximum stage recorded during year ending September 

30, 1917, 5.00 feet at 4 p. m. June 1 (measured discharge, 872 second-feet); minimum stage from water-stage recorder 1.04 feet at midnight September 18-19 

(discharge, 4.6 second-feet); probably not actual extremes.

Maximum stage recorded during year ending September 30, 1918, 4.70 feet at 

3 p. m. April 3 (measured discharge, 736 second-feet); minimum stage from waterstage recorder, 0.92 foot August 3 and 4 (discharge, 2.7 second-feet); probably not 

actual extremes. High-water marks indicated that a stage of about 7.0 feet 

occurred several days previous to April 3.

1911-1918: Maximum stage recorded, 10.76 feet April 12, 1916 (measured discharge, 5,240 second-feet); minimum discharge, 2.5 second-feet September 2, 

1915; probably not actual extremes.

ICE. Observations discontinued during winter.

DIVERSIONS. Many small diversions are made above station, but no data are available 

concerning them.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent; subject to change at high stages. 

Rating curve used October 1 to November 8,1916, well denned between 5 and 450 

second-feet. Standard curve used June 1,1917, to September 30, 1918, fairly well 

denned between 3 and 900 second-feet; was used direct for periods June 26 to 

September 21, 1917, and April 23 to September 27, 1918; indirect method for 

shifting control used for intervening periods. Operation of water-stage recorder 

unsatisfactory. Daily discharge ascertained by applying to rating table mean 

daily gage height obtained by inspection of recorder graph, except for periods 

during which recorder was not operating, for which it was ascertained by estimation or interpolation, and except for periods for which the shifting-control 

method was used. Records fair.

COOPERATION. Gage height furnished by Idaho Irrigation Co. Discharge measurements furnished by Idaho Irrigation Co. and Idaho State engineer.
SNAKE RIVER BASIN. 125

Discharge measurements of Camas Creek near Blaine, Idaho, during the years ending Sept.

30, 1917 and 1918.

Date.

1917.

8

16

19 

26

July 6

16

30

Aug. 3

15

16

21

Made by 

Crosby and Denecke . . .

Gae;e 

height.

Feet. 

5.00

4.02

3.41

3.32 

2 75

2 05

1.69

1.53

1.45

1.38

1.26

1.20

1.18

1.20

1.14

Discharge.

Sec. -ft.

5%

402

383 

220

00

33.7

24.7

13.6

7.9

10.6

9.3

8.3

Date.

1918.

12

23

May 2

8

16

24

30

July 6

11

17

26

Aug. 23

Made by 

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

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

Chapman and Arm-

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

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

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

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

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

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

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

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

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

Gage 

height.

Feet. 

4.70

4.30

4.27

2.90

2.65

2.64

2.21

1.91

1.70

1.48

1.22

1.10

1.14

.96

1.00

1.13

Discharge.

Sec.-jt. 

736

595

598

260

197

189

99

56

41.4

20.9

10.8

7.4

7.0

4.0

3.1

5.6

a- Employee of Idaho Irrigation Co. Employee of Idaho State engineer.

Daily discharge, in second-feet, of Camas Creek near Blaine, Idaho, for the years ending

Sept. 30, 1917 and 1918.

Day.

1916-17. 

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

2.... .......

3...........

4...........

5...........

6...........

7...........

8...........

12...........

13...........

14.... .......

15...........

Oct.

8.6

9.6

10

11

11

n10

14

14

14

17

16

16

15

15

Nov.

15

15

16

15

15

16

17

16

June.

852

792

749

712

675

639

565

565

469

438

July.

132

114

98

91

84

77

73

69

65

61

56

52

48

44

40

Aug.

17

17

15

13

12

12

10

10

11

10

9.7

10

9.4

9.0

9 0

Sept.

6.9

6.6

6.3

6.0

6.6

6.3

6.0

6.0

5.8

5.5

5.6

5.8

6.3

Day.

1916-17. 

16...........

17...........

18...........

19...........

20...........

21...........

22...........

23...........

24...........

25...........

26...........

27...........

28...........

29...........

30...........

31...........

Oct.

15

15

14

15

16

15

15

15

15

15

15

15

14

14

14

14

Nov. June.

407

398

389

380

369

343

319

288

257

232

217

195

174

165

138

July.

36

37

37

35

32

29

27

26

26

26

25

24

22

20

18

18

Aug.

8.4

9.0

11

9.7

9.7

9.0

8.4

8.1

7.8

7.5

8.4

8.7

9.0

9.0

8.1

7.5

Sept.

6.6

4.8

4.8

5.3

6.0

5.0
126 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Camas Creek near Blaine, Idaho, for the years ending 

Sept. 30, 1917 and 1918 Continued.

Day.

1917-18. 

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

2....-..........-.-.....-.-..--.-.-.-.-.-.....

3.......-...-.-.-.---.-.-.-.----.-.-..-.-.....

4.............................................

5.............................................

6.............................................

7.............................................

8...................................... ... .

9.. ........................................ ..

10.. ...........................................

11.............................................

12.......................... ....... . .

13.................................... ... . .

14.............................................

15.............................................

16.................................. . ... .

17...................................... ... .

18.......................... ..... .

19...................................

20........................

21.......................... .......

22................ . .

23........................................ . .

24.............................................

25.............................................

26.............................................

^.. ...........................................

28.......... ...................................

29.................... . .

30.............................................

31.............................................

Mar.

456

663

Apr.

734

670

607

537

coo

4ce

415

428

680

607

579

510

469

360

252

247

240

232

224

212

200

195

May.

19/5

195

1QC

190

195

193

190

176

160

142

113

108

102

inn

92

Q7

77

67

64

60

C7

48

46

44

54

57

60

61

June.

58

54

48

40

40

Q7

04

oo

OK

QC

35

00

27

27

27

04

17

35

00

40

67

57

52

40

31

26

20

July.

18

16

14

13

11

9.0

7.8

6.6

6.6

6.3

6.0

6.1

6.2

6.4

6.6

6.8

6.9

6.6

6.0

5.5

4.6

4.8

4.6

4.6

3.9

3.2

3.2

3.2

3.0

2.9

2.9

Aug.

2.8

2.8

2.7

2.7

2.8

2.8

9 S

2 Q

9 Q

2.8

3.3

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.5

3.5

3.4

3.3

3.3

3.3

3.3

3.6

Sept.

3.8

4.0

4.2

. 4.4

4.6

4.8

5.0

^ 9

^ 4.

5.6

5.8

6.0

6.0

8.4

12

11

8.7

8.1

7.5

6.9

6.3

6.0

6.0

6.1

6.2

6.3

6.3

1 6.5

NOTE. Discharge interpolated on account of lack of gage-height record, June 4-7, 15, 17,18, July 4, 5, 7- 

15, 28, 29, Sept. 13, 1917, Apr. 4, May 1, 15, 22, 23, June 29, July 7, 12-16, 25, Aug. 14-22, 31, and Sept. 1-11, 

18,19, and 24-26,1918; estimated Apr. 11,16-22, June 20-23, and Sept. 28-30,1918. No record obtained during periods for which no discharge is given. Braced figures show mean discharge for periods indicated.

Monthly discharge of Camas Creel: near Blaine, Idaho, for the years ending Sept. 30,

1917 and 1918.

Month.

1916-17. 

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

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

1918. 

April 3-30 ........................"......................

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

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

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

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

Discharge in second-feet.

Maximum.

17 

17 

852 

132 

17 

6.9

734 

202 

67 

18 

3.6 

12

Minimum.

8.6 

15 

138

18 

7.5 

4.8

195 

44 

20 

2.9 

2.7 

3.8

Mean.

13.9 

15.6 

451 

49.7 

10.1 

5.87

412 

118 

38.6 

6.85 

3.28 

6.34

Run-off in 

acre-feet.

855 

248 

26,800 

3,060 

621 

244

22,900 

7,260 

2,300 

421 

202 

377

33,500
SNAKE RIVER BASIN. 127

LITTLE WOOD RIVER NEAR RICHFIELD, IDAHO.

LOCATION. In sec. 30, T. 4 S., R. 20 E., half a mile above heading of Dietrich canal 

of Idaho Irrigation Co. and 1 mile east of railroad station at Richfield, Lincoln 

County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. January 1, 1911, to September 30, 1918.

GAGE. Vertical staff on right bank; read by employees of Idaho Irrigation Co. 

Original gage was carried out by ice March 12,1913, and present gage was installed 

at the same location and datum on March 27,1913. Datum of gage lowered 1 foot 

September 5, 1918, but all gage readings made during the period September 5-30, 

1918, were corrected to original datum.

DISCHARGE MEASUREMENTS. Made from a suspension footbridge just below gage 

or by wading.

CHANNEL AND CONTROL. Bed of stream composed of coarse gravel and small rocks; 

rough. Control probably permanent. Stage-discharge relation may be slightly 

affected during summer by light growth of aquatic plants.

EXTREMES OF DISCHARGE. Maximum stage recorded during year ending September 

30, 1917, 4.45 feet June 1 (discharge, 601 second-feet); minimum stage, 2.23 feet 

July 16 and 17 (discharge, 54 second-feet).

Maximum stage recorded during year ending September 30, 1918, 3.58 feet 

April 12 (discharge, 316 second-feet); minimum stage, 1.92 feet June 19 (discharge, 

22 second-feet).

1911-1918: Maximum stage recorded, 4.5 feet May 17 and 18, 1911 (discharge, 

722 second-feet); minimum stage, 1.92 feet June 19, 1918 (discharge, 22 secondfeet).

ICE. Stage-discharge relation seriously affected by ice; observations discontinued 

during winter.

DIVERSIONS. Small ranch diversions are made above station. Dietrich canal of 

Idaho Irrigation Co. diverts a short distance below.

REGULATION. None.

ACCURACY. Stage-sischarge relation changed during winter of 1917-18, when no 

records were obtained. Two rating curves used which are well defined below 

450 second-feet, one applicable April 16 to October 17, 1917, and the other March 

27 to September 30, 1918. Gage read to hundredths once daily. Daily discharge 

ascertained by applying daily gage height to rating table and estimating or interpolating for periods of no record as noted in footnote to daily-discharge table. 

Records of daily discharge below 450 second-feet good; above that discharge and 

for periods of estimation and interpolation they are fair.

COOPERATION. Gage-height record furnished by Idaho Irrigation Co. Discharge 

measurements furnished by Idaho Irrigation Co. and Idaho State engineer.

Discharge measurements of Little Wood River near Richfield, Idaho, during the years 

ending Sept. 30, 1917 and 1918.

Date

1917.

May 2

July 10

20

27

1

19

20

25

31

Made by 

.....do,... ..............

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

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

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

Gage 

height.

Ft. 

3.26

3.79

2 92

2.45

2.36

2.35

9 ^ft

2.52

2.56

2.57

Discharge.

Sec.-ft. 

274

418

175

85

82

78

69

74

100

97

107

103

Date

1918. 

Mar. 27

Apr. 8

13

24

20

July. 11

24

26

Made by 

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

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

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

.....do.'.................

CarroUft. ...............

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

Gage 

height.

Ft. 

3.30

3.29

3.58

3-34

3.25

2.44

2.08

2.39

2.42

2.63

2 61

Discharge.

Sec.-ft. 

263

242

300

257

243

78

40

75

80

118

115

a Employee of Idaho State engineer. 6 Employee of Idaho Irrigation Co.
128 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Little Wood River near Richfield, Idaho, for the years 

ending Sept. 30, 1917 and 1918.

Day.

1916-17. 

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

2...........

3...........

5...........

<«...........

7...........

10...........

11...........

12...........

13...........

14...........

15...........

Apr. May.

400 

421

| 470 

511

481 

511 

511 

541 

541

541 

511 

541 

541 

541

June.

601 

571 

541 

541 

541

541 

481 

466 

451 

451

481 

511 

466 

451 

348

July.

142 

136 

130 

130 

113

102 

98 

90 

90 

91

93 

93 

82 

71 

63

Aug.

71

67 

63 

67 

69

71 

73 

69 

70 

74

74 

76 

77 

77

85

Day.

1917-18.

2..............................

3..............................

4..............................

5..............................

6..............................

7..............................

8. .............................

9..............................

10. .............................

11..............................

12..............................

13..............................

14..............................

15..............................

16..............................

17..............................

18..............................

19..............................

20, .............................

21..............................

22..............................

23..............................

24..............................

25..............................

26..............................

27..............................

28..............................

29..............................

30. .............................

31..............................

Sept.

Ill 

115 

117 

120 

130

130 

130 

130 

134 

134

134 

134 

134 

134 

134

Oct.

168 

172 

172 

168 

165

168 

168 

168 

170 

172

172 

172 

172 

172 

172

168 

168

Date.

16...........

17...........

18...........

19...........

20...........

21...........

22...........

23...........

24...........

25...........

26...........

27...........

28

29...........

30...........

01

Mar.

251

Apr.

263

Apr.

t 250

251

230 

. 230 

240 

251 

262

283 

316 

294 

283 

294

262 

251 

251 

240 

220

230 

230 

240 

240 

240

230 

240 

240 

230 

220

May.

541 

601 

601 

571 

541

541 

541 

541 

541 

571

601 

571 

571 

601 

601

May.

220 

230 

220 

230 

230

240 

240 

230 

230 

230

220 

199 

177 

150 

104

99 

94 

98 

90 

86

72 

68 

57 

43 

39

39 

41 

41 

36 

36 

34

June.

277 

277 

277 

291 

320

291 

263 

249 

236 

209

209 

196 

174 

157 

150

June.

39 

40 

43 

43 

37

36 

38 

41 

44 

47

49 

45 

40 

36 

34

26 

30 

26 

22 

23

26 

31 

33 

37 

41

37 

37 

39 

37 

32

July

54 

54 

56 

70 

83

80 

80 

82 

80 

90

91 

83 

80 

76 

76 

73

July.

33 

37 

41 

40 

38

37 

41 

43 

51

58

77 

78 

80 

83 

83

83 

86 

90 

96 

96

103 

103 

98 

93 

93

93

88 

88 

88 

86 

84

Aug

80 

80 

90 

97 

97

97 

100 

104 

111 

106

111 

111 

102 

102 

111 

107

Aug.

82 

80 

78 

77 

78

79 

81

82 

83

100

118 

116

115 

115 

116 

117 

118 

119

1 

Sept .

145 

146 

146 

154 

157

157 

157 

157 

157 

159

159 

1-57 

157 

159 

168

Sept.

120 

121 

122 

123

124

125

126 

127 

128 

129

140

150 

150

149 

148 

148

\ 148

NOTE. Discharge estimated on account of missing gage heights, May 1, 3, and 4, 1917, Apr. 1-4, Aug. 

10-23, and Sept. 11-23, 29, and 30, 1918; interpolated, May 19, 1917, July 4, 28, 30, 31, Aug. 1-3, 5-8, 25, 27-31, 

Sept. 1-4, 6-9, and 25-27, 1918. No record obtained during periods for which no discharge is given.
SNAKE EIVER BASIN. 129

Monthly discharge of Little Wood River near Richfield, Idaho, for the years ending Sept.

30, 1917 and 1918.

Month.

1917. 

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

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

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

1917-18. 

October 1-17............. ..... ..... ........

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

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

Discharge in second-feet.

Maximum.

601 

601 

142 

111 

168

172 

316 

240 

49 

103 

119 

150

Minimum. Mean.

400 

150 

54 

63 

111

165 

220 

34 

22 

33 

77 

120

538 

367 

88.1 

86.7 

142

170 

250 

133 

36.3 

73.6 

98.5 

137

Kun-off in 

acre-feet.

33,100 

21,800 

5,420 

5,330 

8,450

74,200

5,730 

14,900 

8,180 

2,160 

4,530 

6,060 

8,150

BRTTNEATT RIVER NEAR ROWLAND, NEV.

LOCATION. In sec. 29, T. 47 N., R. 56 E., at Hiram Salls's ranch, half a mile below 

Taylor Creek, 1J miles above McDonald Creek and Rowland post office, Elko 

County, and 100 milea north of Elko, nearest railway point.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. May 19, 1913, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff gage fastened to left abutment of footbridge; read by Mrs. 

Hiram Sails.

DISCHARGE MEASUREMENTS. Made from footbridge at gage or by wading.

CHANNEL AND CONTROL. - Bed composed of gravel and large bouldera; fairly permanent. No well-defined control. Left bank subject to overflow at extremely 

high water.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 2.42 feet at 6 

a. m. April 12 (discharge, 304 second-feet); minimum stage, 0.38 foot August 12 and 

13 (discharge, 5 second-feet).

1913-1918: Maximum stage recorded, 7.0 feet May 14, 1917 (discharge, 1,440 

second-feet); minimum stage recorded in 1918.

ICE. Stage-discharge relation affected by ice.

DIVERSIONS. A few small ditches divert water above station.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent during year, except as 

affected by ice. Rating curve well defined. Gage read to hundredths twice daily. 

Daily discharge ascertained by applying mean daily gage height to rating table. 

Records good.

Discharge measurements of Bruneau River near Rowland, Nev., during the year ending

Sept. 30, 1918.

Date. Made by 

L. W. Jordan. ............................................................

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

Gage 

height.

Feet. 

0.96

1.03

Discharge.

Sec.-ft. 

33.3

37.6
130 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Bruneau River near Rowland, Nev., for the year ending

Sept. 30, 1918.

Day.

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

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9..............

10..............

11..............

12..............

13............ .

14..............

15..............

16..............

17........ . . .

18..............

19..............

20..............

21............

22..............

23..............

24............ .

25..............

26........

27..............

28........ ..

29..............

30..............

31..............

Oct.

18

18

18

18

18

19

20

20

20

20

20

20

22

23

23

23

23

23

23

23

22

22

23

9^

Nov.

23

23

23

23

24

25

26

27

27

27

27

27

29

29

28

27

27

26

26

26

26

26

26

26

29

30

OA

30

00

37

Dec.

42

39

33

33

33

31

31

32

32

33

33

33

33

33

33

33

33

33

33

00

33

33

33

32

32

32

32

34

33

33

00

Jan.

33 i

33

30

33

33

33

37

37

37

23

32

33

31

29

29

Feb.

30

30

30

32

37

35

34

34

39

44

39

42

47

44

46

45

39

46

45

45

Mar.

37

45

42

45

47

54

42

44

38

59

68

76

68

56

51

56

84

91

102

107

128

157

188

209

242

253

281

278

242

251

288

Apr.

276

253

209

203

201

188

180

198

227

281

297

301

292

281

251

220

198

178

169

171

194

220

242

244

251

227

207

207

220

231

May.

231

238

258

271

281

283

267

255

274

244

222

198

184

173

167

165

157

151

147

165

171

155

143

143

143

139

136

132

130

128

128

June.

128

124

124

124

124

130

136

141

147

147

149

143

139

126

118

105

89

88

128

100

207

151

132

138

88

62

50

45

40

33

July.

23

23

20

19

18

15

15

14

14

15

14

13

13

13

13

13

13

12

10

10

9

9

9

9

9

9

8

7

7

7

7

Aug.

7

7

7

6

6

6

6

6

6

6

5

5

5

5

6

7

7

7

8

8

8

7

7

6

6

5

5

5

5

5

5

Sept.

5

6

6

6

6

6

6

7

9

10

10

10

9

9

12

13

12

12

10

10

10

10

NOTE. Braced figures show estimated mean discharge for periods indicated. Stage-discharge relation 

affected by ice during greater part of period from Jan. 11 to Feb. 7.

Monthly discharge of Bruneau River near Rowland, Nev. ,for the year ending Sept. 30,1918.

montn.

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

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

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

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

The year. . .......................................

Maximum.

23

37

42

37

47

288

301

283

207

23

8

13

301

Minimum.

23

31

37

169

128

33

7

5

5

5

Mean.

20.3

27.1

33.2

30.9

37.5

120

227

190

115

12.6

6.1

9.1

69.1

acre-feet.

1,250

1,610

2,040

1,900

2,080

7,380

13,500

11,700

6,840

775

375

542

50,000

Discharge in second-feet.
SNAKE EIVER BASIN. 131

OWYHEE RIVER NEAR GOLD CREEK, NEV.

LOCATION. In W. J sec. 24, T. 44 N., R. 54 E., an eighth of a mile below Wild Horse 

dam site, 9 miles west of Gold Creek, Elko County, and 65 miles north of Elko.

DRAINAGE AREA. 209 square miles (measured on map compiled by United States 

Indian Service).

RECORDS AVAILABLE. March 26,1916, to September 30,1918.

GAGE. Stevens continuous water-stage recorder on left bank; inspected by engineers 

of United States Geological Survey.

DISCHARGE MEASUREMENTS. Made from cable at gage or by wading.

CHANNEL AND CONTROL. Bed composed of rocks and loose sand. Control is rock 

riffle in each of two channels where stream is divided by small island about 500 

feet below gage; subject to change by work of beavers. Left bank high and rocky; 

right bank is overflowed at extremely high stages; dense growth of willows along 

banks.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder; 

4.06 feet at 10.30 a. m. April 11 (discharge, 260 second-feet); minimum discharge 

not determined because of backwater from beaver dams; probably less than 1 

second-foot during part of August.

1916-1918: Maximum stage recorded, from water-stage recorder, 8.5 feet at 

3 a. m. May 14, 1917 (discharge, from extension of rating curve, 1,380 secondfeet). Minimum discharge during 1918.

ICE. Stage-discharge relation affected by ice.

DIVERSIONS. Wild hay meadows above station irrigated during flood season.

REGULATION. None.

ACCURACY. Stage-discharge relation changed slightly by high water on May 29, 

affected by ice January 20 to March 24, and by backwater from beaver dams July 

22 to September 30. Rating curves well defined below 450 second-feet. Operation of water-stage recorder satisfactory. Daily discharge ascertained by applying 

to rating table mean daily gage height obtained by inspecting recorder graph. 

Records good except for periods estimated, for which they are fair.

Discharge measurements of Owyhee River near Gold Creek, Nev., during the year ending

Sept. 30, 1918.

Date.

Dec 4

Apr. 23

Made by 

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

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

Gage 

height.

Feet. 

1.74

2.76

Discharge.

Sec.-ft. 

10.1

17.0

Date. Made by 

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

Gage 

height.

Feet. 

1.70

02.24

Discharge.

Sec.-ft. 

14.1

1.2

> Stage-discharge relation affected by backwater from beaver dam 400 feet below gage.
132 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Owyhee River near Gold Creek, Nev.,for the year ending

Sept. SO, 1918.

Day.

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

2..............

3..............

4..............

6..............

7..............

8..............

9..............

10..............

11..............

12. .............

13..............

14..............

15..............

16..............

17..............

18..............

19..............

20. .............

21..............

22..............

23..............

24........... ..

25..............

26..............

27..............

28. .............

29..............

30..............

31..............

Oct.

6

6

6

6

6

6

7

7

7

7

7

7

9

9

9

9

10

10

10

12

12

12

12

12

12

12

12

11

9

8

10

Nov.

12

11

12

10

10

19

11

10

10

12

12

19

10

9

9

10

10

10

9

8

11

Dec.

17

15

13

11

10

10

7

g

g

10

7

9

11

12

11

12

13

15

10

9

11

12

10

1 >

14

13

9

Jan.

10

g

9

14

10

12

14

7

12

12

10

8

12

10

13

8

Feb.

7

Mar.

12

17

is

93

110

106

84

102

115

138

Apr.

131

108

76

67

63

64

73

91

144

189

217

164

157

110

95

80

74

61

59

66

65

72

76

76

76

73

67

63

59

03

May.

66

65

67

67

70

67

64

63

71

60

49

42

40

36

33

36

38

36

34

31

27

25

26

24

22

23

29

45

46

42

46

June.

32

27

24

24

24

24

27

24

22

18

14

14

12

10

8

9

12

12

22

23

31

31

28

22

16

12

9

7

5

4

July.

3

3

2

2

2

2

2

2

2

2

2

2

2

2

2

1

1

1

1

1

1

1

Aug.

1

j

Sept.

I 1

i

1

1

1

1

2

2

2

2

2

2

4

4

3

3

2

2

2

2

2

5

5

5

5

5

4

4

5

NOTE. Braced figures show mean discharge for periods indicated, when stage-discharge relation was 

affected by ice or beaver dams; estimated by comparison with discharge of Owyhee River near Owyhee.

Monthly discharge of Owyhee River near Gold Creek, Nev., for the year ending Sept. SO,

1918.

Month.

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

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

Discharge in second-feet.

Maximum.

12 

15 

17 

14

138 

217 

71 

32 

3

5

217

Minimum.

6

8 

7

59 

22 

4

1

Mean.

8.97 

11.0 

11.4 

9.87 

7.0 

44.5 

92.6 

44.8 

18.2 

1.55 

1.0 

2.70

21.1

Run-off in 

acre-feet.

552 

655 

701 

607 

389 

2.740 

5.510 

2.750 

1.080 

95 

61 

161

15,300
SNAKE KIVER BASIN. 133

OWYHEE RIVER NEAR OWYHEE, NEV.

LOCATION. la sec. 21, T. 46 N., R. 53 E., 40 feet above mouth .of Jones Brook, half 

a mile above J. P. Jones ranch, 8 miles southeast of Owyhee, Elko County, and 

14 miles above Nevada-Idaho State line; 5,550 feet above sea level.

DRAINAGE AREA. 380 square miles (measured on Forest Service maps). 

ECORDS AVAILABLE. November 29, 1913, to September 30, 1918.

GAGE. Stevens continuous water-stage recorder on right bank; inspected by employee of United States Indian Service.

DISCHARGE MEASUREMENTS. Made by wading or from cable 125 feet above gage.

CHANNEL AND CONTROL. Bed consists of ledge rock and boulders filled in with sand 

and gravel; fairly permanent. One channel at all stages. Banks covered with 

brush; both subject to overflow. Control for low stages is riffle between gage and 

Jones Brook; permanent. For high stages rapids below brook may become 

control.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder, 

4.66 feet at 1 a. m. April 12 (discharge, 406 second-feet); minimum stage, 1.26 

feet at 5 a. m. September 7 (discharge less than 2 second-feet).

1914-1918: Maximum discharge, 1,750 second-feet on May 15, 1917; minimum 

discharge occurred in 1918.

ICE. Stage-discharge relation affected by ice.

DIVERSIONS. No important diversions above gage.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent. Rating curve well defined below 

1,500 second-feet. Operation of water-stage recorder satisfactory except as noted 

in footnote to daily-discharge table. Daily discharge ascertained by applying 

to rating table mean daily gage height obtained by inspecting recorder graph. 

Records good for periods when recorder was in operation; for remainder of year, 

poor.

Discharge measurements of Owyhee River near Owyhee, Nev., during the year ending

Sept. SO, 1918.

Date.

Mar. 14

Apr. 24

Made by 

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

Gage 

height.

Feet. 

2.32

3.59

Discharge.

8ec.-ft. 

47.3

207

Date. Made by 

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

Gage 

height.

Feet. 

2.72

1.35

Discharge.

Sec.-ft.

87

2.8
134 SUBFACE WATEE SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Owyhee River near Owyhee, Nev., for the year ending

Sept. 30, 1918.

Day.

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

2....................................

3....................................

4.......................... ... .....

5....................................

6....................................

7....................................

8....................................

9....................................

10....................................

11....................................

12....................................

13....................................

14.... ............... ...... ..

15...................... ......... ...

16....................................

17.......................... . .......

18....................................

19....................................

20....................................

21...... ............. ... .. .......

22............................ .......

23....................................

24...................... . .. .......

25...................... ..... .......

26....................................

27....................................

28....................................

29....................................

30....................................

31....................................

Oct.

14

14

14

14

14

14

14

15

15

15

16

16

17

17

20

Mar.

30

47

50

52

64

79

84

104

121

132

160

179

206

227

264

211

201

217

249

Apr.

257

233

187

156

141

141

144

167

214

303

382

342

310

269

219

198

176

181

186

191

196

201

206

211

219

211

193

182

182

190

May.

195

198

206

209

219

217

201

196

200

180

160

138

131

125

121

121

124

121

116

110

102

98

99

96

96

98

111

144

158

134

130

June.

115

106

103

102

103

106

107

103

102

97

90

85

82

75

72

68

73

66

60

77

75

84

73

61

47

39

31

26

22

19

July.

16

14

13

11

9

8 |

7 1 '

Aug.

6

6

6

6

o

4

Sept.

4

3

3

3

2

2

2

3

6

6

6

6

6

7

11

9

10

12

12

13

13

12

10

12

13

13

14

14

14

13

NOTE. Braced figures show mean discharge for periods indicated, when recorder was not in operation; 

estimated from discharge measurements, weather records, and comparison with flow of Owyhee River near 

Gold Creek.

Monthly discharge of Owyhee River near Owyhee, Nev.. for the year ending Sept. 30, 1918.

Month.

Tnlv

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

Discharge in second- feet.

Maximum. Minimum.

264 

3S2 

219 

115

14

3S2

iii

93 

19

2

2

Mean.

17.3

20 

20 

20 

20 

98.0 

213 

147 

75.6 

9.45

5.90

8.47

54.6

Run-off in 

acre-feet.

1,060 

1,190 

1,230 

1,230 

1,110 

6,030 

12,700 

9,040 

4,500 

581 

36JJ 

504

39, 500
SNAKE EIVER BASIN. 135

JACK CREEK NEAR TUSCARORA, NEV.

LOCATION. In sec. 35, T. 42 N., R. 52 E., at R. M. Woodward's ranch, on ElkoMountain City stage road, 8 miles above confluence with South Fork of Owyhee 

River, and 12 miles northeast of Tuscarora, Elko County.

DRAINAGE AREA. 31 square miles (measured on Forest Service maps).

RECORDS AVAILABLE. May 15, 1913, to September 30, 1918.

GAGE. Vertical staff on left bank about 500 feet below Woodward's house; read by 

R. M. Woodward. Datum raised 1.50 feet September 1, 1914.

DISCHARGE MEASUREMENTS. Made by wading near gage.

CHANNEL AND CONTROL. Bed composed of coarse gravel and small boulders; shifts 

during high water. No well-defined control. Banks low and lined with willows; 

may be overflowed to some extent during high water.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 1. 70 feet at 6 p. m. 

June 13 (discharge, 124 second-feet); minimum stage recorded, 0.18 foot September 2 and 3 (discharge, 0.6 second-foot).

1913-1918: Maximum stage recorded, 3.6 feet at 6 p. m. May 14,1917 (discharge, 

465 second-feet); minimum stage occurred in 1918.

ICE. Stage-discharge relation not affected by ice during year.

DIVERSIONS. No important diversions above gage.

REGULATION. None.

ACCURACY. Stage-discharge relation changed during high water in May. Rating 

curve used October 1 to May 7 well defined. Curve used May 16 to September 30 

, fairly well defined. Gage read to hundredths once daily with occasional breaks 

of from 1 to 3 days when no reading was obtained. Daily discharge ascertained 

by applying daily gage height to rating table and interpolating for days when gage 

was not read. Records good.

COOPERATION. Gage-height record furnished by R. M. Woodward.

Discharge measurements of Jack Creek near Tuscarora, Nev., during the year ending

Sept. 30, 1918.

Date.

Apr. 24

Made by 

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

Gage 

height.

Feet.

O cc

1.16

Discharge.

Sec.-ft.

7 Z

60

Date.

Sept. 2

Made by 

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

Gage 

height.

Feet. 

1.58

.18

Discharge.

Sec.-ft. 

110

.6
136 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Jack Creek near Tuscarora, Nev., for the year endim

Sept. 30, 1918.

Fay.

4.....--....---

6... ........ ---

7. ........... - 

8. ...... -------

9

10.........-..--

11....--..--.---

19

13.....-..-.-.--

14..............

11

16.....-.--..-..

17..............

18..............

19...-.--.-..---

20......-.-..--.

21..............

22..............

23..........----

24..............

25. ....--..----.

26..............

27. .............

28..............

29. .............

30. .............

O1

Oct.

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Nov.

2

2

2

2

2

2

2

2

2

2

2

2

2

3

3

3

3

3

Dec.

g

g

g

g

3

3

3

3

3

3

3

3

3

4

4

4

4

4

Jan.

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

5

5

5

5

Feb.

5

5

5

5

5

5

5

5

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

Mar.

6

6

7

7

7

7

7

7

7

7

7

8

10

13

13

13

14

15

16

17

24

33.

35

44

48

53

32

35

35

33

Apr.

31

29

28

24

26

28

31

37

51

55

58

60

55

42

37

33

29

28

28

31

33

42

53

60

78

60

53

51

58

60

May.

65

70

77

86

92

98

121

114

105

90

72

59

55

52

52

53

52

52

52

. 53

55

56

57

58

58

58

60

72

62

56

58

June.

57

56

58

60

70

79

62

67

102

107

116

116

124

110

97

84

79

72

65

60

58

54

52

50

48

44

40

35

28

25

July.

22

20

16

14

13

11

10

9

9

8

8

7

6

6

5

4

3

3

2

2

2

2

2

2

2

2

2

2

2

2

Aug.

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

1

1

Sept

Monthly discharge of Jack Creek near Tuscarora, Nev., for the year ending Sept. SO, 191.

Month.

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

Discharge in second-feet.

Maximum.

2 

3 

4 

5 

6 

53 

78 

121 

124 

22 

2 

3

124

Minimum.

2 

2 

3 

4 

5 

6 

24 

52 

25 

2 

1 

1

1

Mean.

2.00 

2.37 

3.23 

4.26 

5.68 

18.5 

43.0 

68.5 

71.2 

6.7 

1.9 

1.8

19.1

Run-off in 

acre-feet.

1 

1 

1 

2 

3 

1,1 

2,5 

4,2 

4,2 

4 

1 

1

13, S

JORDAN CREEK NEAR JORDAN VALLEY, OREG.

LOCATION. In sec. 9, T. 30 S., R. 45 E., in canyon at lower end of Jordan Valle 

9 miles below Jordan Valley post office, Malheur County. Cow Creek ente 

Jordan Creek 7 miles below station.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. April 28, 1911, to September 30, 1918.

GAGE. Inclined staff on right bank an eighth of a mile below upper end of canyo 

read by Marcos Renteria.

DISCHARGE MEASUREMENTS. Made by wading or from cable near gage.
SNAKE RIVER BASIN. 137

CHANNEL AND CONTROL. Bed consists of lava rock; probably permanent. Control 

affected by growth of moss during summer.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.96 feet at 5 p. m. 

March 27 (discharge, 1,700 second-feet); stream dry for greater part of August 

and September.

1911-1918: Maximum stage recorded, 12.3 feet April 26, 1917 (discharge, 3,620 

second-feet); creek reported dry for periods of several weeks nearly every year.

ICE. Stage-discharge relation affected by ice.

DIVERSIONS. Practically entire summer flow of stream is used by many small diversions above gage. Flood water is also diverted into Antelope reservoir.

REGULATION. None, except that due to diversions.

ACCURACY. Stage-discharge relation permanent except as affected by ice. Rating 

curve well defined. Gage read to hundredths three times weekly except during 

Avinter, when it was read once weekly. Daily discharge ascertained by applying 

daily gage height to rating table and interpolating for days of no gage height. 

Records fair.

Discharge measurements of Jordan Creek near Jordan Valley, Oreg., during the year ending

Sept. 30, 1918.

Date.

T)f*f* Q

May 31

Made by 

H. .T. Dean. ..............................................................

G. C. Baldwin. ...........................................................

Gage 

height.

Feet. 

3.71

4.85

Discharge.

Sec.-ft. 

56.2

203

Daily discharge, in second-feet, of Jordan Creek near Jordan Valley, Oreg., for the year

Sept. SO, 1918.

Day.

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

2..............

3..............

5..... ...... ...

6. .............

7..............

S...... ........

9..............

JO..............

11..............

12..............

l4. ...... .......

15..............

16..............

17..............

18..............

19..............

20..............

21..............

22..............

23..............

24..............

25..............

26..............

27..............

28..............

29.......... ...

30..............

^1

Oct.

0.6

.6

1

.8

.8

.9

.8

.8

.8

.8

.8

.8

.8

.9

1.1

1.2

1.3

1.5

1.6

1.8

2.0

9 9

3.0

3.7

3.7

3.6

3.5

5.8

5.6

5.3

Nov.

6,1

6.9

6.9

6.6

6.4

6.1

6.0

5.8

6.6

7.2

7.5

7.8

16

8.4

9.1

8.4

8.4

10

9.1

9.0

8.8

9.9

11

J9

12

J4

16

18

1

Dec.

32

45

45

45

45

36

27

27

43

4-1

44

44

44

41

44

44

44

44

45

47

49

51

53

58

63

68

73

78

.83

88

93

Jan.

82

76

69

67

65

62

58

40

CA

CA

56

I 15

I

Feb.

40

58

70

81

93

90

88

SS

88

%

105

99

88

85

81

78

63

71

80

88

76

63

68

74

68

Mar.

62

87

113

138

131

124

88

106

124

118

321

192

260

193

160

200

240

302

364

442

516

590

fi89

837

918

1,720

^ , 470

1 ftQft

1 ' 200

Apr.

1,320

1,180

960

824

689

640

590

590

590

877

1,270

1,220

1,130

1,130

960

837

724

590

559

559

590

724

798

760

5flO

590

May.

590

559

590

590

655

655

607

559

590

529

442

391

340

364

340

293

276

260

250

240

211

202

176

176

June.

198

193

184

184

184

184

188

193

184

180

176

160

152

142

US

99

88

71

66

60

320

590

240

88

71

51

26

July.

24

20

16

12

11

9.1

9.1

9.1

8.4

8.3

8.2

8.1

7.2.

6.8

6.4

4.2

3.7

3.6

O 1

2.S

2.6

9 ^

2 A

1.3

O

n

Aug.

0.6

.4

2

.0

.1

.1

.2

.2

.2

.2

.2

.0

.0

.0

.0

Kept.

9 9

3 A

q Q

4.7

5.6

6.4

7 ^

8 1

a n

NOTE. Braced figures show mean discharge for periods indicated, when stage-discharge relation 

was affected by ice; estimated from weather records and observer's notes. Probably zero discharge during 

most of period from Aug. 20 to Sept. 21.
138 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Jordan Creek near Jordan Valley, Oreg.,for the year ending Sept. 30,

1918.

Month.

D ecetriber

Julv.......... .................................... ....

Aulni-t 1-19... -..----...----.............-... .. .....

September 22-30. ......................................

Discharge in second-feet.

Maximum.

5.8 

18 

93 

82 

105 

1,720 

1,320 

655 

590 

24 

.6 

9.0

Minimum.

0.6

£.8 

27

62 

559 

176 

26 

.9 

.0 

2.2

Mean.

1.89 

9.40 

51.3 

49.0 

76.9 

481 

803 

374 

156 

7.00 

.16 

5.58

Run-off in 

acre-feet.

116 

559 

3,150 

3,010 

4,270 

29,600 

47,800 

23,000 

9,280 

430 

6.0 

99.6

BOISE RIVER NEAR TWIN SPRINGS, IDAHO.

LOCATION. About sec. 23, T. 4. N., R. 6 E. (unsurveyed), a quarter of a mile above 

Birch Creek, 1J miles above flow line of Arrowrock reservoir, 4 miles below 

Twin Springs, Boise County, and 18 miles above Arrowrock.

DRAINAGE AREA. 830 square miles (measured on topographic maps)..

RECORDS AVAILABLE. March 22, 1911, to September 30, 1918.

GAGE. Friez water-stage recorder on right bank installed April 4, 1915, to replace 

vertical staff at same location and datum; inspected by Roy Call.

DISCHARGE MEASUREMENTS. Made by wading or from cable 50 feet above gage.

CHANNEL AND CONTROL. Bed composed of gravel and boulders; practically permanent. Control formed by well-defined gravel and boulder riffle. Banks not 

subject to overflow.

EXTREMES OF DISCHARGE. Maximum stage from water-stage recorder, 7.10 feet 

at 4 a. m. June 14 (discharge, 7,990 second-feet); minimum stage, 1.96 feet at 

2 a. m. November 20, 1917 (discharge, 232 second-feet.)

1911-1918: Maximum stage recorded, 7.82 feet at 3 a. m. May 15, 1917 (discharge, 9,430 second-feet); minimum stage recorded, 1.73 feet at 10.30 p. m. 

November 13, 1916 (discharge, 142 second-feet).

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. No important diversions above station and none between it and 

Dowling station below.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent. Rating curve well 

defined. Operation of water-stage recorder satisfactory. Daily discharge 

ascertained by applying to rating table mean daily gage height obtained by 

inspecting recorder graph and interpolating for days of no gage height. Records 

good.

Discharge measurements of Boise River near Twin Springs, Idaho, during the year ending

Sept. 30, 1918.

Date.

Oct. 18

Mar. 24

25

Made by 

C. F.Elford............

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

Gage 

height.

Feet. 

2.11

3

CC

o 7c

Discharge.

Sec.-ft. 

319

1,770

1,930

Date.

Mar. 28

July 24

Made by 

C. F.Elford............

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

Gage 

height.

Feet. 

3.95

5.63

2.56

Discharge.

Sec.-ft. 

2,160

4,720

626
SNAKE RIVER BASIN. 139

Daily dii in second-feet, of Boise River near Twin Springs, Idaho, for the year 

ending Sept. SO, 1918.

Day.

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

2..............

3..............

4..............

5..............

6..............

7..............

8..............

9..............

10..............

11..............

12..............

13..............

14..............

15..............

16..............

17..............

18..............

19..............

20..............

21....... ......

22..............

23..............

24..............

25..............

26..............

27..............

28..............

29..............

30..............

31..............

Oct.

340

334

328

328

322

322

322

322

322

322

322

322

328

334

328

317

305

322

328

328

322

322

322

334

346

328

300

328

340

Nov.

334

334

334

340

334

334

334

328

328

322

322

322

322

311

317

300

294

268

263

284

328

322

OOA

3*7

322

278

334

388

IWfi

Dec.

934

600

388

351

407

iffi

351

328

363

357

328

340

413

474

407

382

QQ4.

600

689

706

615

600

1 190

1,410

1 f\AC\

953

1 QQfl

o oen

3,020

2,220

1,580

Jan.

1 280

1,090

1,000

982

886

802

820

749

706

487

623

706

fi4.7

623

60S

fiAO

576

600

516

460

460

480

KAjR

623

576

5fKJ

553

553

KAfi

426

Feb.

OfiQ

516

546

524

59J.

509

KOQ

CA1

4*.3

480

553

584

584

553 c/vi

509

riAR

487

453

413

487

516

538

*OQ

440

480

4*3

426

Mar.

467

501

538

IWfi

5<w

494

594

584

524

528

531

535

KOQ

*49

KAfi

561

600

714

QR9

1,180

1 oen

1 300

l'380

1 640

1*920

2,020

2 120

2*220

 L '

1 o or/\

Apr.

2,360

2,370

2,770

3 9fifi

3 9ftfi

0 OfLT\

3,110

2 77f»

2,860

3,110

3,540

May.

3,810

4,350

4,800

5,270

5,650

5,080

4,620

4,530

3,900

3,360

3,020

2,770

2,860

3,110

3

0fiA

3

0fiA

3,020

9 fion

2,450

2,290

2,220

2,370

2

KOfi

2 fiQfi

2,690

2 fion

2

/1 en

2,370

2,610

2 Qftn

June.

2,940

2,860

3,200

3,900

4,530

5,270

5,270

5,840

6,410

6,790

6,990

6,990

7,590

7,190

6,220

5 4fifl

5,080

4,890

4,800

4,530

4,620

4,080

4,530

3,720

3,200

2,770

2 Q7fl

2,140

1,850

1,760

July.

1,670

1,580

1,490

1,400

1,310

1,220

1,140

1,080

1,090

1,110

1,030

972

915

953

906

839

802

776

749

731

681

664

631

fi91

655

615

60S

561

531

*no

*no

Aug.

524

592

531

516

501

486

471

456

441

426

420

401

394

394

446

553

501

509

460

453

474

487

453

426

413

401

394

382

376

376

363

Sept.

351

340

328

322

317

317

305

334

460

401

363

346

346

426

516

420

382

363

351

346

346

340

388

446

394

382

369

363

363

401

NOTE. Braced figures show mean estimated discharge for periods indicated, when recorder was not in 

operation. Discharge interpolated Mar. 10-14, 26, 27, June 30 to July 5, Aug. 4-9.

Monthly discharge of Boise River near Twin Springs, Idaho, for the year ending Sept.

SO, 1918.

[Drainage area, 830 square miles.]

Discharge in second-feet.

Month. 

Maximum.

October........................... 1 346

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

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

May .............................. 5, 650

June.............................. 7,590

July.............................. 1,670

The year.. ..................! 7,590

Minimum.

300 

263 

328 

426 

369 

467

2,220 

1,760 

509 

363 

305

263

Mean.

326 

329 

875 

664 

500 

1,060 

2,590 

3,290 

4,590 

915 

452 

371

1,330

Per 

square 

mile.

0.393 

.396 

1.05 

.800 

.602 

1.28 

3.12 

3.96 

5.53 

1.10 

.545 

.447

1.60

Run-off.

Inches.

0.45 

.44 

1.21 

.92 

.63 

1.48 

3.48 

4.56 

6.17 

1.27 

.63 

.50

21.74

Acre-feet.

20,000 

19,600 

53,800 

40,800 

27,800 

65,200 

154,000 

202,000 

273,000 

56,300 

27,800 

22,100

962,000

82374 22 WSP 483 10
140 SURFACE WATER SUPPLY, 1918, PART XII B.

ARROWROCK RESERVOIR AT ARROWROCK, IDAHO.

LOCATION. In E. J sec. 13, T. 3 N., R. 4 E., at Arrowrock, Boise County, 22 miles 

by road east from Boise.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. October 1, 1917, to September 30, 1918.

GAGE. Graduations painted on center of upstream vertical face of concrete dam, 

in September, 1917; read by E. L. Ballard, superintendent of Arrowrock dam. 

Vertical staff in seven sections on south side of reservoir immedia.tely above 

dam used after storage in reservoir was initiated, with exception of few 

months in 1916, when chain gage on dam was used. Uncertainty as to when 

changes in staffs by ice and frost action occurred make publication of actual 

observations prior to use of painted gage on dam face seem unwarranted.

EXTREMES OF CONTENTS. Maximum stage recorded during year, 3,214.1 feet June 14 

(contents, 285,800 acre-feet); minimum stage, 2,971.0 feet October 7-11 (contents, 

239 acre-feet).

STORAGE. Capacity of reservoir about 280,000 acre-feet as determined by latest 

capacity table; elevation of crest of spillway weir and top of movable crest, 

3,205 feet and 3,211 feet, respectively. Record of storage or release each month 

used for determining discharge without storage for gaging station at Dowling 

below dam.

COOPERATION. Record of gage height and table of storage capacity furnished by 

United States Reclamation Service.

Daily contents, in acre-feet, of Arrowrock reservoir at Arrowrock, Idaho, for the year ending

Sept. SO, 1918.

Day.

1...

2...

3...

4...

5...

6...

7...

8...

9...

10...

11...

12...

13...

14...

15...

16...

17...

18...

19...

20...

21...

22...

23...

24...

25...

26...

27....

28. . .

29...

30...

01 si ...

Oct.

2,740

2,080

1,480

1,100

770

482

239

239

239

239

239

533

1,080

1,550

1,970

2,600

3,500

4,570

5,400

6,380

7,370

8,230

9,100

9,920

10,780

11, 560

12,230

12,680

13, 070

13, 180 

13, 390

Nov.

13,690

13,800

14, 140

14,400

14, 520

14,790

14,830

14, 870

14, 910

14,930

14,950

14,950

15,020

15,100

15, 140

15,200

15,260

15,820

16, 030

16,200

16,260

16, 410

16,540

16, 620

16, 710

16,880

16, 920

16, 920

17, 060

17, 770

Dec.

19, 130

21, 250

22,320

22,660

22,930

23, 380

24,180

24,830

25, 810

26,900

27, 890

29,050

30, 390

32,350

34,810

36, 410

37, 870

39,450

41,880

44,300

46,800

48,720

49,930

52, 570

56,640

59,220

62, 470

69,100

79,300

86,750 

91 ' 660

Jan.

95,020

97, 540

99, 070

100,800

102,300

103, 700

104, 700

105, 700

106,400

107, 100

106,900

107, 400

108, 100

108,800

109, 100

109,300

109,600

110, 000

110,300

110, 500

110, 100

109, 600

109, 100

109,100

109, 300

110, 000

110, 300

110, 000

110,000

110, 000

m

AAft j UlfJ

Feb.

109,800

109, 100

108,100

108,200

108,400

108,400

108,400

108, 800

Mar.

Ill, 600

Apr.

218,000

111,300 225,500

111,300 231,000

112,000 235,600

114,300

116, 100

238,000

240,300

117,900 242,400

119,300 242,400

108,400 i!21,900 243,200

108, 400

108, 400

108,800

109,100

109, 800

110, 000

110,000

110, 100

110, 100

110, 800

110, 800

110, 800

110, 800

110,800

111, 100

111, 300

111, 300

111, 500

111, 600

124,200

126,400

246,100

247,500

128,500 249,200

131,000 250,900

133,400 252,300

135, 600

137,000

252,800

252,300

138,000 250,900

138,400 248,900

140,000 247,500

143,000

147, 000

151,000

155, 200

160,200

165, 700

171, 400

179, 700

186,900

194,500

201,900 

209,500

247, 000

247,500

248,900

251,700

253,700

254,000

254,000

252, 800

250,900

249,800

248,900

May.

249,500

250,600

253,400

257, 300

263,900

271,200

274, 400

275, 300

275, 300

274, 100

272,000

269,200

266,500

264, 500

263,400

263,600

263, 100

263,400

264,800

265,700

266,200

266,500

267, 100

267,700

269, 200

270, 600

271, 800

272, 900

272,900

272, 300

979 fiftft £i I £i, \J\JU

June.

274, 100

275, 600

276,800

277, 700

279,800

282, 200

283,100

284,000

284,900

284,900

285,200

285,400

285,600

285,800

285,100

284,000

283,200

282,700

282,500

282, 200

281,900

281, 900

281, 900

281,600

280, 700

280,100

279, 500

278,600

276,500

274, 700

July.

272,300

269,400

266,800

263,400

260,400

257, 300

254,500

250,600

247,000

243,700

240,800

237,700

234,100

231,800

227, 800

224,000

220,600

217,200

213,500

209,800

206,000

202,200

198, 100

194,500

190,800

187, 100

183,200

180, 100

176,800

173, 300 

169,800

Aug.

166,400

163,300

160,200

157, 000

153,800

151,000

147, 700

144,800

141,800

138,600

135, 300

131,900

128,600

125,300

121, 800

118,600

115,300

111,900

108, 800

105,500

102,300

99,680

97,200

94,700

92, 110

89,660

86,900

84,380

81,450

78,180 

74,780 .......

Sept.

71,120

67,630

63,900

60,600

57,600

54,720

52,020

49,160

46, 950

45,600

43,750

41,930

40,150

38,550

37,240

36,980

35,930

35,210

34,100

32, 950

31,730

30,460

29,400

28,600

27,890

27,030

26,190

25,380

24, 480

23,780
SNAKE RIVER BASIN. 141

BOISE RIVER AT DOWLING'S RANCH, NEAR ARROWROCK, IDAHO.

LOCATION. In sec. 15, T. 3 N., R. 4 E., at Bowling's ranch, Elmore County, threequarters of a mile above Moore Creek, 2 miles below Highland power dam, and 

4 miles below Arrowrock.

DRAINAGE AREA. 2,230 square miles (measured on topographic maps).

RECORDS AVAILABLE. March 13, 1911, to September 30, 1918.

GAGE. Friez water-stage recorder on left bank installed March 19, 1915, to replace 

an inclined staff set to same datum and at practically the same location; inspected 

by Al Davis and J. N. Davis.

DISCHARGE MEASUREMENTS. Made from cable about 50 feet below gage.

CHANNEL AND CONTROL. Bed composed of gravel and boulders; slightly shifting 

at intervals. Control formed by well-defined gravel and boulder riffle; shifts 

slightly.

EXTREMES OF DISCHARGE. Maximum stage from water-stage recorder, 8.01 feet at 

11 a. m. June 14 (discharge, 12, 200 second-feet); minimum stage occurred December 15 and 28 when stage was below gage owing to closing of gates at Arrowrock 

dam (estimated discharge, 20 second-feet).

1911-1918: Maximum stage recorded, 8.7 feet on June 13, 1911 (discharge, 

15,100 second-feet); minimum discharge occurred December 15 and 28, 1917.

ICE. Stage-discharge relation unaffected by ice.

DIVERSIONS. No important diversions above station. New York canal of Boise 

project, United States Reclamation Service, diverts about 10 miles below and 

has maximum capacity of 2,500 second-feet. A number of smaller canals, 

total capacity of 2,500 second-feet, divert below New York canal.

REGULATION. Since February 21, 1915, flow has been regulated by Arrowrock reservoir, 4 miles upstream, which has storage capacity of 280,000 acre-feet. Water is 

stored during winter and spring and released during irrigation season.

ACCURACY. Stage-discharge relation practically permanent. Operation of waterstage recorder satisfactory. Daily discharge ascertained by applying to rating 

table mean daily gage height obtained by inspection of recorder graph. Records 

excellent.

COOPERATION. Several discharge measurements furnished by United States Reclamation Service and Idaho State Engineer.

Discharge measurements of Boise River at Dowling's ranch, near Arrowrock, Idaho, 

during the year ending Sept. 30, 1918.

Date.

Oct. 16

19

Mar. 9

29

May 4

Made by 

H. J. Dean.............

G. C. Baldwin.........

C. F. Elford............

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

Gage 

height.

Feet. 

2.34

2.19

1.75

3.07

6.08

Discharge.

Sec.-ft. 

413

352

172

929

6.080

10,100

Date.

July 6

9

26

Aug. 2

Sept. 13

Made by 

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

R. B. Kilgore. .........

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

Gage 

height.

Feet. 

5.00

5.03

4.71

4.50

3.84

Discharge.

Sec.-ft. 

3,570

3,590

3,030

2,630

1,690

Engineers, U. 8. Reclamation Service. 6 Special deputy of State engineer.
142 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Boise River at Dowling's ranch, near Arrowrock, Idaho, 

for the year ending Sept. SO, 1918.

Day.

1..

2.............

3.............

4.............

5.............

6.............

7.............

8.............

9.............

10.............

11...... . .

12.

13.............

14.....

15.............

16..... . .

17.............

18.............

19.............

20. ............

21........ ....

22. .

23.............

24. ............

25.............

26.............

27.............

28.............

29.............

30.............

31.... ... ....

Oct.

1,000

1,000

942

884

876

892

751

716

716

647

513

530

547

423

9Q3

314

331

344

357

380

371

418

496

553

571

577

608

Nov.

647

654

660

660

687

708

716

716

716

716

793

723

716

716

716

74

741 f;i3

V77

608

701

701

701

716

716

716

723

371

Dec.

608

621

CO1

491

480

362

 3 A A

01 Q

1 QQ

20

112

1 ae

177

74

76

ECO

868

OOP;

667

20

74

640

nnn

Jan.

968

1 ft°.ft

1 030

1 040

1 (\Af\

"1 040

1 ndn

1 040

1,070

1,070

1,030

1 040

1 040

1,050

1 ftftn

1 060

1,060

1,070

1,080

1,090

1,130

1,130

1 140

1 140

1 140

1 140

1* 140

1 140

1,150

1,150

1 1 CA

Feb.

1 190

1,210

1 140

l'l30

1 140

1 150

1 150

1 1 wi

i i en

1,160

1,160

1 140

1,080

1,080

1,080

1,080

1,080

1,080

1 080

1,080

1,080

1 090

1 090

1,100

1,100

1,100

1,100

1,100

Mar.

1,100

1,100

1,100

322

997

227

OQQ

235

181

184

195

198

202

9ft9

977

1 1 *\n

908

737

744

766

797

812

835

DEQ

884

900

908

925

Apr.

942

1,580

1 QAft

1,900

1 900

1 ctnft

2,470

2,890

2,890

4,060

4,850

4 970

4 97Q

4,970 A Q7ft

4,970

d. Q7ft

A 'Kftft

3 OKA

3

ocr\

3,950

4,620

5,720

5 980

5 980

5,980

K QQn

5,980

5,980

May.

5,980

5 980

6,110

6,110

6,110

6,950

7 680

8,130

8,130

7,530

7 380

7^240

7,240

7,240

6 con

6,110

C CMft

4,390

3,950

3,950

3,950

3

QKA

3,950

3,950

O QKA

3,950

4,160

4,160

4,500

4,500

4,390

June.

4,270

4,160

4,850

5,340

6 OQft

7 980

Q OQft

9,070

10,100

11,100

11,400

11 400

11,800

11,800

10,700

9,070

8,130

7,530

7,090

6,810

6,530

5,460

4,730

A OQA

4,060

3,950

3,850

July.

4.160

O QKA

3,950

3,850

o 74n

3,540

3,640

3,740

3,640

3 540

3,440

3 4.4ft

3,350

3,250

3,350

3,350

3,250

3,160

3,160

3,160

3,160

3,160

3,070

3,070

3,070

2,980

2.890

2,720

2,720

2,800

2,720

Aug.

2,630

2,630

2,550

2,550

2,400

2,320

2,320

2,320

2,400

2,400

2,400

2,400

2,470

2,470

2,550

2,550

2,550

2,470

9 4nn

2,240

2,100

2,100

2 030

2 030

2 030

2^030

2,100

2,240

2,240

2,400

Sept.

2,400

2,400

2,320

2,170

2,030

2,030

1,960

1,960

1,900

1,900

1,830

1,770

1,700

1,640

1,510

1,370

1,260

1,310

1,380

1,380

1,360

1,360

1,310

1,260

1,250

1,240

1.220

1,200

1,180

1,160

NOTE. Discharge estimated Dec. 15 and 28; water surface below gage.

Monthly discharge of Boise River at Dowling's ranch, near Arrowrock, Idaho, for the year

ending Sept. 30, 1918.

Month.

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

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

July.........:..........................................

Discharge in second-feet.

Maximum.

1.000 

744 

900 

1,150 

1,210 

1,150 

5,980 

8,130 

11,800 

4,160 

2,630 

2,400

11,800

Minimum.

293

74 

20 

968 

1,080 

181 

942 

3,950 

3,850 

2,720 

2,030 

1,160

20

Mean.

581 

658 

386 

1,080 

1,120 

645 

4,110 

5,600 

7,380 

3,320 

2,350 

1,630

2,400

Run-off in 

acre-feet.

35,700 

39,200 

23,700 

66,400 

62,200 

39.700 

245,000 

344,000 

439,000 

204,000 

144,000 

97,000

1,740,000
SNAKE RIVER BASIN. 143

COTTONWOOD CREEK NEAR ARROWROCK, IDAHO.

LOCATION. In sec. 35, T. 4 N., R. 5 E., Boise County, 200 feet above bridge where 

Twin Springs-Arrowrock road crosses creek, a quarter of a mile north of south 

boundary of Boise National Forest, 1J miles above mouth of creek, and 13 miles 

from Arrowrock by road.

DRAINAGE AREA. 23 square miles (measured on topographic maps).

RECORDS AVAILABLE. March 7, 1914, to September 30, 1918, when station was discontinued.

GAGE. Vertical staff in stilling well installed September 29, 1916, to replace vertical 

staff fastened to large cotton wood on left bank used previously; read by Mrs. 

Eldora Hedrick. From May 19 to July 4, 1916, readings were made on temporary 

vertical staff about 6 feet downstream. All gages referred to same datum.

DISCHARGE MEASUREMENTS. Made by wading.

CHANNEL AND CONTROL. Bed composed of gravel and boulders. Reinforced concrete control 15 feet below gage installed October 24,1915.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.77 feet at 6 p. m. 

March 27 (discharge, 65 second-feet); minimum stage, 0.64 foot September 7 and 8- 

(discharge, 0.4 second-foot).

1914-1918: Maximum stage recorded, 2.30 feet at 4 p. m. April 26,1917 (discharge, 

166 second-feet); minimum stage, 0.64 foot September 7 and 8, 1918, and 0.03 foot 

(on original gage) August 12-15,1915 (discharge, 0.4 second-foot).

ICE. Records discontinued during winter.

DIVERSIONS. No important diversions above gage. One small diversion at brush dam 

250 feet below.

REGULATION. No artificial regulation.

ACCURACY. Stage-discharge relation permanent. Rating curve well defined. Gage 

read to hundredths twice daily. Daily discharge ascertained by applying mean 

daily gage height to rating table. Records good.

Discharge measurements of Cottonwood Creek near Arrowrock, Idaho, during the year ending

Sept. 30, 1918.

Date.

Oct. 17

Mar. 24

Made by 

H.J.Dean.. ...........

C. F. Elford............

Gage 

height.

Feet. 

0.84

1.62

Discharge.

Sec.-ft. 

2.1

47.7

Date.

July 24

Made by Gage 

hei^it.

Feet. 

1.17

.77

Discharge.

Sec.-ft. 

11.6

1.3
144 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Cottonwood Creek near Arrowrock, Idaho, for the year

ending Sept. 30, 1918.

Day.

1. ......

2............... . .

3......................... ....... ... .. ..

4....... . ..

5. .................. . . . . . .

6....... . . ..... .

7............................................

8............................................

9............................................

10..................... . ....... . .

11................... ....

12............................. ... ..

13............................................

14................... .

15................................. ....

16................... . .

17............................. ... ..

18............... ..

19......................... . . .

20..................................... .

21....... . . . .

22................... .

23....................... ... .

24............................... . .

25......................................... ..

26. ............ ....... ... .......

27............................................

28............................................

29

30............................................

31............................................

Mar.

8.0

Q i

9

C

11

12

10

11

11

11

11

12

14

10

14

14

15

30

11

4Q

45

45

AQ

AQ

63

62

66

53

51

Apr.

51

48

07

S4

ql

30

OQ

on

41

/to

4"?

47

36

00

01

01

01

^1

01

01

01

9.1

0.9

O.A

^1

31°.1

31

May.

30

36

38

qq

31

31

OK

01

26

24

24

24

99

91

10

10

1 fi

17

16

15

15

14

14

14

16

14

13

13

12

June.

9.5

10

11

11

12

Q Q

11

9.5

9.5

8.6

O O.

Q ft

7.4

7.4

7.0

6.1

C Q

5.5

7.0

6.1

5

C

5.5

5.5

5.3

5.0

4.6

3.0

July.

9 Q

2.7

9 PI

2.4

2.2

2.2

2 0

1 S

1.8

1.8

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1 s

1 q

1.2

1.2

1 s

1.3

1.2

1.2

1.2

1.2

Aug.

i s

2.5

2.0

1 s

1.2

1.2

1.0

1.0

.7

1.0

1.2

1 ^

1 2

1.0

1.0

1.0

1.0

1.0 1.1 1.1

1.1

1.0

.8

.7

.6

.6

Sept.

0.6

.6

.5

.4

to

5.0

3.4

9 Q

^ Q

3 9

^ ft

9 Q

2

c

2.2

1 O

1.7

1.5

1.5

1.5

S 9

2 Q

2.2

1.7

1.5

1.5

1.5

2.2

NOTE. Discharge estimated June 2-4.

Monthly discharge of Cottonwood Creek near Arrowrock, Idaho, for the year ending

Sept. 30, 1918.

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

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

Maximum.

63

51

38

12

2.9

2.5

19

Minimum.

8.0

29

12

3.0

1.2

.6

.4

Mean.

28.7

35.6

22.4

7.42

1.64

1.07

2.55

Run-off in

acre-feet.

1,760

2,120

1,380

442

101

65.8

152

6,020

Discharge in second-feet.
SNAKE EIVEE BASIN.

SOUTH FORK OF BOISE RIVER NEAR LENOX, IDAHO.1

145

LOCATION. In sec. 24, T. 2 N., R. 6 E., in canyon at R. S. Sandlin's ranch, 1 mile 

above mouth of Smith Creek, 4 miles above flow line of Arrowrock reservoir, 

14 miles above mouth of South Fork, 18 miles above Arrowrock dam, and 7 miles 

south of Lenox post office, Elmore County.

DRAINAGE AREA. 1,090 square miles (measured on topographic maps).

RECORDS AVAILABLE. March 24, 1911, to September 30, 1918.

GAGE. Friez water-stage recorder on right bank in wooden shelter, referenced 

to inside and outside vertical staff gages; installed April 11, 1915, at same 

datum but about 25 feet below original inclined gage. Records from March 24, 

1911, to April 10, 1915, refer to the inclined gage. R. S. Sandlin, observer.

DISCHARGE MEASUREMENTS. Made from cable about 100 feet above gage, or by 

wading at a section about 150 feet below gage.

CHANNEL AND CONTROL. Bed of stream consists of mud and gravel. Control of 

coarse gravel and rock; practically permanent. One channel at all stages.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder, 

7.33 feet at 11 a. m. June 13 (discharge, 5,040 second-feet); minimum stage, 2.28 

feet for entire day September 3 (discharge, 293 second-feet).

1911-1918: Maximum stage recorded, 9.53 feet at 11 a. m. May 15, 1917 (discharge, 9,200 second-feet); minimum stage, 1.94 feet at 1 p. m. December 16, 

1915 (discharge, 197 second-feet).

ICE. Stage-discharge relation not seriously affected by ice.

DIVERSIONS. No important diversions above gage, and none below.

REGULATION. No artificial regulation.

ACCURACY. Stage-discharge relation practically permanent. Rating curve well 

defined. Operation of .water-stage recorder fairly satisfactory. Daily discharge 

ascertained by applying to rating table mean gage height obtained by inspecting 

recorder graph and by interpolating for days of no gage height. Records fair 

during winter and excellent during remainder of year.

Discharge measurements of South Fork of Boise River near Lenox, Idaho, during the year

ending Sept. 30, 1918.

Date.

Mar. 26

July 25

Made by 

C. F . Elford ..............................................................

Gage 

height.

Feet. 

4.59

6.46

3.10

Discharge.

Sec.-ft. 

1,510

4, 000

596

1 Formerly designated "South Fork of Boise River near Prairie, Idaho.
146 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of South Fork of Boise River near Lenox, Idaho, for the

year ending Sept. 30, 1918.

Day.

1 . ....

2..............

3...... .......

4..............

6..............

7..............

8..............

9..............

10..............

11

12. ... .......

13.. ... .......

14 .. .

15..............

16..............

17..............

18..............

19... ..........

20..............

21 ... . .......

22..............

23..............

24 . .......

25..............

26..............

27..............

28..............

29..............

30..............

31..............

Oct.

353

350

346

340

337

333

330

330

333

330

330

330

330

333

333

333

330

330

330

' 346

343

343

346

343

340

350

356

343

330

330

370

Nov.

363

363

363

370

370

367

367

363

363

363

363

367

370

370

367

374

367

353

340

333

333

374

377

367

370

367

340

333

437

485

Dec.

734

609

418

327

388

410

388

360

381

392

377

374

449

498

477

418

414

AAQ

485

498

481

445

609

734

643

628

760

1,090

1,160

1,060

902

Jan.

788

723

667

«79

647

586

581

577

380

4ft7

coc

550

506

AQQ

A(\f\

. 430

469

511

} 400

407

433

433

400

Feb.

350

410

429

4.9O

AAK

a <;

422

399

370

W7A.

449

465

ila

445

437

399

346

392

410

457

449

one

1 400

Mar.

425

418

453

392

416

441

465

445

453

AQK

453

433

453

485

528

623

718

810

872

992

1,190

1,370

1,570

1,880

1,830

1,780

1,920

2,210

Apr.

2,370

2,210

1,830

1,660

1,450

1,370

1,340

1,370

1,660

2,210

2,370

2 45JO

2,380

2,280

2,180

2,080

1,880

1,780

2,020

2,320

2,530

2,640

2,700

2,530

2,210

2,110

2,210

2,420

May.

2,590

2,760

3,010

3,540

3,990

3,840

3,540

3,400

3,140

2,760

2,530

2

O7n

2,370

2,530

2,590

2,480

2,260

2,110

1,970

1,880

1,880

1,920

1,970

2,060

2,160

2,160

2,160

2,060

1,920

1,880

2,020

June.

2,110

2,210

2,320

2,700

3,010

3,540

3,690

3,840

4,140

4,300

4,470

4,470

4,810

4,640

4,140

3,400

3,140

2,950

2,880

2,640

2,700

2,590

2,760

2,320

2,020

1 ; 780

1,610

1,430

1,260

1,160

July.

1,090

1,020

992

931

902

872

815

776

844

776

728

687

707

771

697

647

619

591

581

554

541

528

511

577

554

523

506

481

461

449

Aug.

449

490

469

437

410

395

392

385

374

367

356

350

346

343

360

388

414

409

405

400

395

390

386

381

367

353

337

327

324

321

314

Sept.

308

299

296

296

296

299

308

662

511

441

410

388

- 407

515

473

418

395

385

374

367

363

367

4C3

426

407

392

381

374

395

NOTE. Braced figures show mean discharge for periods indicated; estimated from observer's notes and 

weather records. Discharge estimated or interpolated Oct. 28, Jan.10, 31, Feb. 1. 2, Mar.l, 7, 8, Apr.14-19, 

June 27, 28, and Aug. 18-23.

Monthly discharge of South Fork of Boise River near Lenox, Idaho, for the year ending

Sept. 30, 1918.

[Drainage area, 1,090 square miles.]

Month.

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

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

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

Discharge in second-feet.

Maximum.

370 

485 

1,160 

788 

465 

2,210 

2,700 

3,990 

4,810 

1,090 

490 

662

4,810

Minimum.

330 

333 

327 

380 

346 

392 

1,340 

1,880 

1,160 

449 

314 

293

293

Mean.

339 

368 

560 

519 

415 

835 

2,100 

2,510 

2,970 

696 

382 

388

1,010

Per 

square 

mile.

0.311

.338 

.514 

.476 

.381 

.766 

1.93 

2.30 

2.72 

.639 

.350 

.356

.927

Run-off.

Inches.

0.36 

.38 

.59 

.55 

.40 

.88 

2.15 

2.65 

3.04 

.74 

.40 

.40

Acre-feet.

20,800 

21,900 

34,400 

31,900 

23,000 

51,300 

125,000 

154, 000 

177, 000 

42,800 

23,500 

23,100

12. 54 '; 729, 000
SNAKE RIVER BASIN. 147

MOORE CREEK NEAR ARROWROCK, IDAHO.

LOCATION. In sec. 21, T. 3 N., R. 4 E., Boise County, a quarter of a mile above 

highway bridge on Boise-Arrowrock road, half a mile above mouth, and 5 miles 

southwest of Arrowrock.

DRAINAGE AREA. 426 square miles (measured on topographic maps).

RECORDS AVAILABLE. October 1, 1914, to September 30, 1918 (discharge measurements only, prior to December 1, 1915).

GAGE. Graduations to feet and tenths chiseled on face of rock ledge on left bank of 

stream and marked with white paint; read by A. P. Webb.

DISCHARGE MEASUREMENTS. Made by wading near gage or from highway bridge a 

quarter of a mile below.

CHANNEL AND CONTROL. Bed consists of boulders and sand. Control shifts frequently owing to deposition of sand in low stages and cutting out in high stages. 

Stream usually carries much sand and silt as a result of placer operations in Idaho 

Basin. One channel at all stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.40 feet at 8.30 

a. m. March 27 (discharge, 2,170 second-feet); minimum stage recorded, 0.78 foot 

September 5-7 (discharge, 29 second-feet).

1915-1918: Maximum stage, 6.3 feet April 11, 1916 (discharge, 3,140 secondfeet); minimum stage recorded, 0.67 foot August 30, 1915 (measured discharge, 

17.8 second-feet).

ICE. Stage-discharge relation only slightly affected by ice, owing to hot springs just 

above station.

DIVERSIONS. No important diversions above station.

REGULATION . None.

ACCURACY. Stage-discharge relation not permanent; bed of stream changes constantly between narrow limits. Two well-defined rating curves used, one from 

October 1 to March 20 and the other for remainder of year. Gage read to halftenths once daily during high water and to hundredths during low water. Daily 

discharge ascertained by applying daily gage height to rating table. Records 

good.

COOPERATION. Several discharge measurements made by employees of United 

States Reclamation Service.

Discharge measurements of Moore Creek near Arrowrock, Idaho, during the year ending

Sept. 30, 1918.

Date.

Oct. 20

Mar. 9 

23

30

Made by 

H.J.Dean.. ...........

Bald win and Steward". 

C. F. Elford............

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

R. B. Kilgore..........

Gage 

height.

Feet. 

1.17

2.45

4.78

3.05

Discharge.

Sec.-ft. 

52.9

277 

1,270

1,520

466

Date.

July 6

9-

27

Aug. 2

Made by 

Steward and Tallman 6 . 

R. B. Kilgore..........

Gage 

height.

Feet. 

1.50

1.48 

1.09

.98

1.08

Discharge.

Sec.-ft. 

113

105 

56.9

51.3

47.0

Engineer, U. S. Reclamation Service. £> Special deputy of State engineer.
148 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Moore Creek near Arrowrock, Idaho, for the year ending

Sept. 30, 1918.

Day.

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

2..............

3..............

4.........:....

5..............

6..............

7. .............

9. .............

10.. ............

11..............

12..............

13......-...-.-.

14..............

16......--...--.

17....-..-.--...

18...-.--.-.-..-

19..............

20. .............

21... ...........

22....--..-.....

23..............

24..............

25........ ......

26..............

27..............

28..............

29..............

30..............

31..............

Oct.

54

54

54

54

54

54

54

54

49

49

49

49

49

54

54

54

54

54

54

54

54

60

60

60

66

69

69

73

73

60

73

Nov.

73

69

69

80

80

83

84

84

84

83

84

84

84

84

84

84

87

87

87

73

70

68

76

94

98

98

87

101

132

166

Dec.

266

203

149

132

132

124

108

101

116

116

101

116

203

423

266

203

203

378

313

OC4

289

9^1

737

JOO

458

1,310

1,480

1,230

680

Jan.

580

536

440

392

338

364

313

223

184

203

244

944

266

244

266

266

O1 Q

203

184

223

OftO

010

010

289

266

255

OQ4

Feb.

101

203

223

244

244

244

244

223

223

203

244

266

289

266

244

266

244

234

203

234

244

266

266

9^4

223

234

234

Mar.

223

223

244

244

244

244

255

266

278

278

301

378

313

338

338

378

495

1,000

1,230

1,230

1,230

1,400

1,480

1,670

2,170

1,960

1,760

1,580

1,670

Apr.

1,580

1, 1'50

1,080

939

1,080

939

939

939

1,400

1,310

1,230

1,230

1,150

1 080

QQQ

874

812

812

812

812

874

874

874

874

7U

700

700

700

May.

700

700

874

1,010

1,080

1,080

1,010

1,010

874

754

650

700

700

700

cefl

626

581

559

559

538

445

428

445

480

480

412

412

June.

412

396

412

445

445

480

538

499

538

538

538

445

480

445

396

366

352

312

300

277

266

244

255

255

255

214

177

168

168

159

July.

150

168

142

126

118

110

102

95

102

110

102

88

81

81

81

74

68

68

68

62

57

57

54

52

52

57

55

52

52

47

45

Aug.

45

45

52

42

38

38

36

34

34

34

34<u

34

32

38

47

52

68

57

62

57

57

57

57

52

47

47

40

34

32

30

Sept.

30

30

30

30

29

29

29

64

81

AO

57

52

52

81

110

81

68

68

62

62

57

57

74

126

88

81

74

74

74

81

NOTE. Discharge interpolated Jan. 3 and 4.

Monthly discharge of Moore Creek near Arrowrock, Idaho, for the year ending Sept. 30,1918. 

[Drainage area, 426 square miles.]

Month.

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

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

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

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

Discharge in second-feet.

Maximum.

73 

166 

1,480 

580 

289 

2,170 

1,580 

1,080 

538 

168 

68 

126

2,170

Minimum.

49 

68 

101 

184 

101 

223 

700 

412 

159 

45 

30 

29

29

Mean.

57.2 

87.2 

395 

296 

235 

804 

989 

662 

359 

83.1 

44.1 

63.1

340

Per

square 

mile .

0.134 

.205 

.927 

.695 

.552 

1.89 

2.32 

1.55 

.843 

.195 

.104 

.148

.798

Run-off.

Inches.

0.15 

.23 

1.07 

.80 

.57 

2.18 

2.59 

1.79 

.94 

.22 

.12 

.17

10.83

Acre-feet.

3,520 

5,190 

24,300 

18,200 

13,100 

49,400 

58,800 

40,700 

21,400 

5,110 

2,710 

3,750

246,000
SNAKE RIVER BASIN. 149

MALHEUR RIVER NEAR NAMORF, OREG.

LOCATION. In sec. 2, T. 21 S., R. 40 E., at F. J. Froman's ranch, 1 mile south of east 

portal of tunnel No. 1 on Oregon & Eastern Railroad, 3 miles west of Namorf flag 

station, and 15 miles west of Harper post office, Malheur County. North Fork 

of Malheur River enters near Juntura, 20 miles above.

DRAINAGE AREA. 2,560 square miles (measured on General Land Office map).

RECORDS AVAILABLE. May 24, 1913, to September 30, 1918.

GAGE. Inclined staff on right bank, 300 feet above Froman's house; read by F. J. 

Froman. Datum raised 1.53 feet August 17, 1918.

DISCHARGE MEASUREMENTS. Made by wading or from flume 400 feet above gage.

CHANNEL AND CONTROL. Bed composed of small boulders and gravel; practically 

permanent. Control 400 feet downstream; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 4.6 feet at 3 p. m. 

March 20 (discharge, 1,410 second-feet); minimum stage recorded, 2.25 feet August 

5 to 8 (discharge, 20 second-feet).

1913-1918: Maximum stage, 10.7 feet February 6, 1916 (discharge indeterminate on account of ice jam); maximum stage recorded during open water, 9.1 feet 

during night of February 7, 1916 (discharge, 8,450 second-feet). Minimum discharge, 15 second-feet August 8 to 10, 1914 (gage height, 2.40 feet). Highest stage 

in recent years 11.3 feet, March 1,1910, determined by leveling to high-water marks 

pointed out by F. J. Froman June 4, 1918 (discharge estimated from extension of 

rating curve, 12,600 second-feet). Floods of March 7 and 9,1894, are said to have 

been about 0.3 foot higher.

ICE. Stage-discharge relation only slightly affected by ice during year.

DIVERSIONS. Many small diversions from river and tributaries above gage, largest 

being near Drewsey and from North Fork near Beulah.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent, except as affected by 

change of datum August 17. Rating curve well defined. Gage read to quartertenths once daily. Daily discharge ascertained by applying daily gage height to 

rating table. Records good.

Discharge measurements of Malheur River near Namorf, Oreg., during the year ending

Sept. 30, 1918.

Date.

4

Made by 

F.F.Henshavr.........

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

Gage 

height.

Feet. 

2.81

2.84

Discharge.

Sec.-ft. 

103

116

Date.

Aug. 14

17

Made by 

R.C.Briggs...... ......

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

Gage 

height.

Feet. 

2.29

2.33

Discharge.

Sec.-ft. 

22.5

24.2
150 SURFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Malheur River near Namorf, Oreg.,for the year ending

Sept. 30, 1918.

Day.

2.. ............

Q

4..............

6 .............

8....-.--.....-

9..............

12..............

13..............

15..............

17.. ............

18....--..-.....

19..............

21..............

21..............

22..............

23..............

24..............

25.. ............

26.... ..........

27..............

28..............

23..............

39..............

31..............

Oct.

68

78

78

74

74

74

74

74

78

78

78

78

78

78

78

78

78

78

78

78

83

83

98

103

103

103

103

103

103

103

103

Nov.

103

103

109

109

109

103

103

119

129

135

135

129

129

135

135

135

135

142

135

135

135

129

135

135

142

142

142

152

165

172

Dec.

165

172

180

172

165

142

165

165

152

165

165

165

165

165

165

172

165

165

172

1 SO

180

193

206

214

214

214

237

Jan.

237

214

193

193

193

193

237

223

165

180

91 A.

206

206

214

206

180

1 JO

152

1 ^9

180

193

206

193

165

193

193

190

Feb.

150

100

150

170

193

237

269

307

223

359

193

206

214

193

193

172

206

172

193

165

172

180

214

135

172

193

Mar.

165

172

193

206

237

214

206

142

214

214

223

214

223

237

214

206

307

348

980

1,240

1,140

786

742

698

658

698

786

980

786

833

786

Apr.

833

786

786

543

476

476

476

476

476

476

476

^4°.

476

44fi

41 H

415

4.1 ^

317

284

284

284

298

298

298

274

260

251

May.

251

237

223

223

251

251

984

298

284

9fiQ

269

251

00*7

223

223

914

223

237

223

206

206

193

180

172

165

154

154

154

142

135

129

June.

129

119

109

109

109

103

QQ

98

98

98

98

98

 mo

98

98

83

78

83

74

68

63

59

63

74

74

63

56

56

56

56

July.

56

V)

47

11

49

A<)

qo

qj

39

qcn

103

CQ

KK

qo

39

39

39

28

9Q.

25

9^

93

93

93

23

23

23

23

23

22

22

Aug.

93

93

99

22

20

20

90

93

93

93

9^

9A

93

Oft

oe

Oft

00

39

36

43

46

4°.

41

36

36

34

33

33

32

°.9

Sept.

39

QA

34

34

qo

39

qo

qo

41

AR

dfi

51

55

PO

7Q

Q7

7R

" 9186

 70

00-

Q1

266

onq

194

1 3Q

120

162

NOTE. Stage-discharge relation affected by ice Jan. 31 to Feb. 4; discharge estimated. 

Monthly discharge of Malheur River near Namorf, Oreg.,for the year ending Sept. 30,1918.

Month.

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

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

Discharge in second-feet.

Maximum.

103 

172 

260 

237 

359 

1,240 

833 

298 

129 

359 

46 

266

1,240

Minimum.

68 

103 

142 

142 

100 

165 

251 

129 

56 

22 

20 

30

20

Mean.

84.5 

131 

179 

194 

196 

485 

437 

215 

85.7 

46.2 

28.9 

83.6

180

Eun-off in 

acre-feet.

5,200 

7,800 

11,000 

11,900 

10,900 

29,800 

26,000 

13,200 

5,100 

2,840 

1.780 

4,970

130,000

SOUTH FORK OF BURNT RIVER AT HARDMAN RANCH, NEAR UNITY, OREG.

LOCATION. In NW. i sec. 27, T. 13 S., R. 36 E., at ranch of J. R. Hardman, 8 miles

southwest of Unity, Baker County. 

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. April 13, 1916, to September 30, 1918. 

GAGE. Vertical staff on upstream end of right abutment of private wagon bridge;

read by O. M. Hardman. 

DISCHARGE MEASUREMENTS. Made from bridge or by wading.
SNAKE RIVER BASIN. 151

CHANNEL AND CONTROL. Control at broad gravel riffle; slightly shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.3 feet April 1 and 

2 (discharge, 45 second-feet); minimum stage recorded, 0.61 foot September 15- 

19 (discharge, 11 second-feet including Fleetwood ditch, 13 second-feet).

1916-1918: Maximum stage recorded, 1.7 feet May 15, 1917 (discharge, 83 

second-feet); minimum stage occurred in 1918.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. Eldorado ditch diverts water from most of the tributaries of South 

Fork above station and carries it over Beam Creek divide into Willow Creek 

where it is used for irrigation. This ditch carries water during the spring until 

May 1. Fleetwood ditch diverts water past gage during irrigation season (see 

p. 152).

REGULATION. None.

ACCURACY. Stage-discharge relation somewhat shifting. Well-defined rating curve 

used except Oct. 1-8 and June 1 to July 15 when indirect method for shifting 

control was used. Gage read to quarter-tenths once daily. Daily discharge 

ascertained by applving daily gage height to rating table except for above 

periods. Records good.

Discharge measurements of South Fork of Burnt River at Hardman ranch, near Unity, 

Oreg., during the year ending Sept. 30, 1918.

Date.

Nov. 24

Mar. 29

29

Made by 

F. F. Henshaw.........

C. L. Batchelder.. '.....

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

Gage 

height.

Feet. 

0.95

1.22

1.23

Discharge.

Sec.-ft. 

21.5

38.8

39.3

Date.

May 29

Aug. 22

Made by 

F. F. Henshaw.........

Gage 

height.

Feet. 

0.86

.77

Discharge.

Sec.-ft. 

21.4

15.7

Daily discharge, in second-feet, of South Fork of Burnt River at Hardman ranch, near 

Unity, Oreg., for the year ending Sept. 30, 1918.

Day.

1.........

2.........

3.......... ..

4........

5........

6......... .

7..... .

8......

9.......

10.......

11.....

12......

13....

14.....

15.....

16.......

17.......

18.....

19.......

20.......

21.......

22. .

23......... .

24. .......

25......... .:.

26..............

27...............

28..............

29..............

30..............

31........... ..

Oct.

20

20.

9ft

9ft

99

99

99

99

99

99

94

24

9i

24

99

1 22

99

22

22

99

22

22

1 22

22

22

22

Nov.

22

22

22

99

22

22

22

99

99

99

22

22

99

22

99

99

22

99

22

22

22

22

22

24

Dec.

24

22

22

22

99

22

22

22

22

99

22

24

94.

91

24

21

9d

94.

24

24

24

24

24

24

24

24

24

24

24

21

Jan.

24

24

24

24

94

24

22

22

22

99

22

22

22

99

22

99

99

22

22

99

22

99

22

22

22

22

24

24

24

24

21

Feb.

24

24

21

24

24

24

24

24

24

94.

24

24

24

94

24

94.

94.

94

24

94

24

01

24

24

25

25

25

25

Mar.

25

25

OC

25

25

25

25

OC

26

26

26

26

26

Oft

28

00

28

30

30

34

37

37

36

36

40

43

43

Apr.

45

45

43

40

V7

36

34

34

31

34

34

34

34

31

31

qi

33

31

30

30

28

28

27

27

27

27

27

27

27

27

May.

36

36

36

37

37

37

37

37

36

36

36

36

36

36

36

36

36

36

25

25

25

22

22

22

22

22

22

22

22

21

June.

21

21

21

21

21

21

20

20

20

20

19

19

19

19

19

19

10

19

19

19

19

19

19

18

18

17

17

17

17

18

July.

18

18

18

18

18

18

17

14

14

15

15

15

14

14

14

16

16

18

18

18

18

18

16

17

15

15

15

15

15

14

14

Aug.

14

14

14

14

14

15

- 15

16

16

16

16

16

16

16

16

16

18

16

17

18

18

15

15

14

14

16

16

14

13

13

13

Sept.

13

13

13

13

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

13

13

13

13

12

12

12

12

12

12

12
152 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of South Fork of Burnt River at Hardman ranch, near Unity, Oreg., 

for the year ending Sept. 30, 1918.

Month.

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

Discharge in second-feet.

Maximum.

24 

24 

24 

24 

25 

43 

45 

37 

21 

18 

18 

13

45

Minimum.

20 

22 

22 

22 

24 

25 

27 

21 

17 

14 

13 

11

11

Mean.

22.0 

22.1 

23.3 

22.7 

24.1 

29.2 

32.4 

30.6 

19.2 

16.1 

15.3 

12.1

22.4

Run-off in 

acre-feet.

1,350 

1,320 

1,430 

1,400 

1,340 

1,800 

1,930 

1,880 

1,140 

990 

941 

720

16,200

Combined monthly discharge of South Fork of Burnt River and Fleetwood ditch at Hardman ranch, near Unity, Oreg., for the year ending Sept. 30, 1918.

Month.

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

Discharge in second-feet.

Maximum.

24

24 

24 

24 

25 

43 

45 

47 

28 

25 

24 

15

47

Minimum.

20 

22 

22 

22 

24 

25 

31 

29 

24 

18 

15 

13

13

Mean.

22.0 

22.1 

23.3 

22.7 

24.1 

29.2 

34.6 

40.0 

26.1 

21.5 

20.5 

13.8

25.0

Run-off in 

acre-feet.

1,350 

1,320 

1,430 

1,400 

1,340 

1,800 

2,060 

2,460 

1,550 

1,320 

1,260 

821

18,100

FLEETWOOD DITCH NEAR UNITY, OREG.

LOCATION. In NW. \ sec. 27, T. 13 S.. R. 36 E., opposite gage on South Fork of 

Burnt River.

RECORDS AVAILABLE. April 1 to September 30, 1918.

GAGE. Vertical staff driven in ditch bank; location changed May 29.

DISCHARGE MEASUREMENTS. Made from wagon bridge or by wading.

CHANNEL AND CONTROL. Control somewhat shifting owing to small size of ditch and 

loose earth banks.

EXTREMES OP DISCHARGE. Maximum stage recorded, 1.4 feet May 1-3, 5, 6, 9-14, 

and 18 (discharge, 10 second-feet); minimum discharge, 0.38 foot April 6-13 (discharge, estimated 0.1 second-foot).

ICE. No record during ice period.

ACCURACY. Stage-discharge relation changed May 29 by relocation of gage. Rating 

curve used to May 29, poorly defined; for June 1 to September 30, fairly well 

defined. Gage read to quarter-tenths once daily. Daily discharge-ascertained 

by applying daily gage height to rating table. Records fair.

Fleetwood (or Lancaster) ditch diverts water from South Fork of Bilrnt River in 

NW. \ sec. 27, a few hundred yards above river gage and irrigates about 600 acres of 

land near Unity.
SNAKE RIVER BASIN. 153

Discharge measurements of Fleetwood ditch near Unity, Oreg., during the year ending

Sept. 30, 1918.

Date.

Mar. 29 

May 29

Made by 

C. L. Batchelder...

F. F. Henshaw. . . .

Gage height.

Old

gage.

Feet. 

0.50 

1.29

New 

gage.

Feet. 

0.02 

.74

Discharge.

Sec.-ft. 

0.35 

7.9

Date.

Aug. 22 

25

Made by 

Gage height.

Old

gage.

Feet.

New 

gage.

Feet. 

0.70 

.56

Discharge.

Sec.-ft. 

6.4 

3.2

Daily discharge, in second-feet, of Fleetwood ditch near Unity, Oreg., for the year ending

Sept. 30, 1918.

Day.

1.. ........

2..........

3..........

4..........

5..........

6..........

7..........

8..........

9. .........

10..........

11..........

12..........

13..........

14..........

15..........

Apr.

0.4

.4

.4

.4

.1

.1

.1

.1

.1

1.2

1.2

May.

10

10

10

8

10

10

9

8

10

10

10

10

10

10

10

June.

7.2

7.2

7.2

7.2

7.2

6.5

7.2

7.2

7.2

7.2

7.2

7.2

7.2

July.

7.2

7.2

7.2

7.2

7.2

6.5

6.5

6.0

K C

K K

5.0

5 A

Aug.

4.0

4.5

4.5

A K

4.5

5.0

5.0

6.0

6.0

6.0

6 0

6.0

6.5

fi K

Sept.

1.9

2.1

2.1

2.1

2.3

2.3

2.3

O Q

O Q

o q

2.2

2.2

2.2

y o

Day.

16. .........

18..........

19..........

20..........

21 ..........

22..........

oq

25..........

26..........

97

28..........

29..........

30

01

Apr.

1,2

1.4

1.2

.8

.8

4.5

4.5

6.0

6.0

6.0

6.0

6.0

6.0

6.0

A K

May.

10

10

10

8

8

8

8

9

10

10

9

9

10

9

8

8

June.

7.2

7.2

6.5

6.5

6.5

6.5

6.5

fi K

6.5

6.5

6.5

6.5

7.2

7.2

7.2

July.

5.5

5.5

5.0

5.0

4.0

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.0

Aug.

6.5

6.5

6.5

6.0

6.0

6.5

6.5

6.5

6.5

6.0

3.3

3.3

3.0

2.6

2.6

2.1

Sept.

2.2

2.2

2.2

2.2

.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

Monthly discharge of Fleetwood ditchnear Unity, Or eg., for the year ending Sept. 30, 1918.

Month.

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

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

Discharge in second-feet. 

Run-ofE in

Maximum.

6.0 

10 

7.2 

7.2 

6.5 

2.3

Minimum.

0.1

8 

6.5 

4.0 

2.1

.7

acre-feet. 

Mean.

2. 20 131 

9.3 572 

6.90 411 

5.48 337 

5.22 ! 321 

1.68 100

.......... 1, 870-

GRANDE RONDE RIVER AT LA GRANDE, OREG.

LOCATION. In SW. | sec. 31, T. 2, S., R. 38 E., a quarter of a mile above bridge on 

river road, half a mile northwest of La Grande, Union County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. February 16 to September,30, 1918.

GAGE. Inclined staff on right bank; read by K. L. Myrick.

DISCHARGE MEASUREMENTS. Made from Orodell Bridge below gage or by wading.

CHANNEL AND CONTROL. Bed composed of gravel. Control is formed by remains of 

an old dam; fairly permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded, 7.28 feet March 26 (discharge, 

2,540 second-feet); minimum stage recorded, 2.32 feet September 4 and 5 (discharge, 16 second-feet).
154 SUKFACE WATBK SUPPLY, 1918, PART XII B.

ICE. No record during ice period.

DIVERSIONS. None above station.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent. Bating curve well

denned. Gage r,ead to hundredths once daily. Daily discharge ascertained by

applying daily gage height to rating table. Records good. 

COOPERATION. Field data furnished by Grande Ronde drainage district.

Discharge measurements ofGrande Ronde River at La Grande, Oreg., during the year ending

Sept. SO, 1918.

Date.

Feb. 17

IWar Id

30

Made by 

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

Gage 

height.

Feet. 

4.33

5.75

6.74

Discharge.

Sec. -ft. 

471

2,060

Date.

Apr. 19

Made by Gage 

height.

Feet. 

4.85

2.37

Discharge.

Sec.-ft. 

766

20.8

a Engineer for Grande Ronde drainage district.

Daily discharge, in second-feet, of Grande Ronde River at La Grande, Oreg., for the year

ending Sept. 30, 1918.

Day.

1................................. .. 2.............................:......

3....................................

4...............................

5......................... ....... .

6....................................

7....................................

8....................................

9....................................

10....................................

11....................................

12................. ......... . .

13....................................

14............................... . ..

15....................................

16....................................

17....................................

18............................... . ..

19....................................

20................... ...... .

21....... ........ . .

22......................... ..... .

33............................... . ..

24................. . . . .

25................. ..... . . .

26....................................

27....................................

28............................. . . .

29....................................

30....................................

31............................... . .

Feb.

515

475

395

Qfifl

230

378

395

325

9fift

360

325

230

Mar.

290

395

360

290

308

325

360

342

325

308

260

325

415

395

415

515

710

1.270

1,270

1,340

1,270

1,640

1,880

2,120 9 *idn

2,540

1,800

1,800

2,040

Apr.

1,960

1,640

1,200

1 200

1,060

880

940

880

1,340

1,560

1,560

1,480

1,340

1,270

1,060

940

880

760

710

610

710

880

1,000

1,340

940

820

820

820

880

May.

940

940

1,000

1,130

1,060

880

820

760

660

560

515

515

515

515

515

515

515

.560

435

475

360

342

342

308

308

290

325

308

308

308

308

June.

290

275

245

260

260

275

275

260

260

275

245

360

245

205

180

158

180

137

128

118

118

109

192

180

118

109

100

S7

92

87

July.

81

74

69

66

64

61

56

54

56

61

60

66

56

50

59

76

59

50

41

33

44

37

35

97

84

69

59

54

51

44

37

Aug.

44

31

33

31

29

28

25

31

32

29

27

23

23

22

22

25

33

37

45

61

55

49

43

37

33

32

28

23

22

21

20

Sept.

19

18

18

16

16

17

18

18

18

23

29

23

29

50

56

51

37

33

30

28

28

28

29

29

31

28

27

28

30

33

NOTE. Discharge interpolated Aug. 31, Sept. 1,2,19,23, and 29.
SNAKE RIVER BASIN. 155

Monthly discharge of Grande Ronde River at La Grande, Oreg., for the year ending Sept.

30, 1918.

Month.

February 16-28. ........................................

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

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

Discharge in second-feet.

Maximum.

515 

2,540 

1,960 

1,130 

360 

97 

61 

56

Minimum.

230 

260 

610 

290 

87 

33 

20 

16

Mean.

366 

1,040 

1,080 

559 

194 

58.2 

32.1 

27.9

Run-oft* in 

acre-feet .

9,440 

64,000 

64,300 

34,400 

11,500 

3,580 

1,970 

1,660

191,000

GRANDE RONDE RIVER AT ELGIN, OREG.

LOCATION. In NW. \ sec. 14, T. 1 N., R. 39 E., at county bridge a quarter of a mile 

east of railroad station at Elgin. Union County, at lower end of Grande Ronde 

Valley, just below mouth of Phillips Creek.

DRAINAGE AREA. 1,350 square miles.

RECORDS AVAILABLE. November 18, 1903, to August 15, 1912; March 27 to September 21, 1918.

GAGE. Chain gage on downstream side of bridge near east abutment; read by J. W. 

Bickford. Present gage not referred to datum of earlier gage.

DISCHARGE MEASUREMENT. Made from highway bridge a quarter of a mile above 

gage or by wading.

CHANNEL AND CONTROL. Bed composed of heavy gravel and small boulders; fairly 

permanent. No well-defined control.

EXTREMES OF DISCHARGE. Maximum stage during year, 7.5 feet prior to March 28, 

determined from high-water marks (discharge, 5,370 second-feet); minimum 

stage recorded, probably close to actual minimum, 2.27 feet August 30 (discharge, 

75 second-feet).

1903-1912 and 1918: Maximum stage recorded 8.1 feet March 22, 1910 (discharge, 9,220 second-feet); minimum discharge, 15 second-feet. August 29, 1905 

(gage height, 1.3 feet). The flood of 1917 reached a stage of 10.3 feet (discharge 

estimated from extension of rating curve, 10,500 second-feet).

ICE. No record during ice period.

DIVERSIONS. Considerable area irrigated in Grande Ronde Valley above station.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent during season. Rating curve 

fairly well defined. Gage read to tenths once daily. Daily discharge ascertained by applying daily gage height to rating table. Records good.

COOPERATION. Part of field data furnished by Grande Ronde drainage district.

Discharge measurements of Grande Ronde River at Elgin, Oreg.. during the year ending

Sept. 30, 1918.

Date.

Apr. 6

Made by 

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

Gage 

height.

Feet.

6.87

5.54

Discharge.

Sec.-ft. 

i fififi

4 330

2,520

Date.

Apr. 22

Made by 

R. C. Briggs...........

Gage 

height.

Feet. 

5.03

2.27

Discharge.

Sec.-ft. 

1,810

75

Engineer, Grande Ronde drainage district. 

82374 22 WSP 483 11
156 SUKFACE WATER SUPPLY, 1918, PART XII B.

Daily discharge, in second-feet, of Grande Ronde River at Elgin, Oreg., for the year ending

Sept. 30, 1918.

Day.

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

2............

3... . ....... -

4............

5............

6............

7............

8............

9............

10............

11............

12............

13. ...........

15............

Mar. Apr.

2,930

2,540

2,170

2,050

2,410

2,540

2,800

2,800

May.

2,050

2,170

2 9Qfi

2,290

2,170

2,170

1,930

1,600

i ^nn

1,410

pt.

80

80 

80 

80 

80

80

80

80

80

80

80

80

80

80

80

Day.

16............

17............ 

18............ 

19............ 

20. ...........

21............

22............

23............

24............

25............

26. ...........

27............

28. ...........

29............

v\

31............

Mar.

4,550

4,390

Apr.

2,540

2,170 

2,170 

2,050 

1,930

1,820

1,820

1,930

2,050

2,050

2,050

2,050

2,050

2,050

2,050

May.

1,320

1,230 

1,230 

1,230 

1,140

1,060

980

820

820

750

750

750

750

750

' 680

680

June.

.......

Sept.

80

80 

80 

80 

80

80

NOTE. No record obtained during periods for which no discharge is given.

Monthly discharge of Grande Ronde River at Elgin, Oreg., for the year ending Sept. 30,

1918.

Month.

April 4-20. .............................................

Discha 

Maximum.

2,930 

2,290 

820 

80

rge in seconc 

Minimum.

1,820 

680 

610 

80

-feet. 

Mean.

2,290 

1,430 

658 

80.0

Run-off in 

acre-feet.

123,000 

87,900 

17,000 

3,330

LADD CREEK NEAR HOT LAKE, OREG.

LOCATION. In NW. i sec. 12, T. 4 S., R. 38 E., 3 miles southwest of Hot Lake, Union 

County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. February 20 to May 25, 1918, when station was discontinued.

GAGE. Vertical staff on highway bridge, 600 feet above house of William Banton, 

gage reader.

DISCHARGE MEASUREMENTS. Made from wagon bridge a short distance below gage 

or by wading.

OHANNEL AND CONTROL. Bed composed of gravel and boulders; fairly permanent. 

No well-defined control.

EXTREMES OF DISCHARGE. Maximum stage recorded, 2.10 feet March 18 (discharge, 192 second-feet). No record of low water.

ICE. None during period of record.

DIVERSIONS. None above station.

REGULATION . None.

ACCURACY. Stage-discharge relation practically permanent. Rating curve well 

defined below 120 second-feet. Gage read to quarter-tenths once daily. Daily 

discharge ascertained by applying daily gage height to rating table. Records 

good.

COOPERATION. Field data furnished by Grande Ronde drainage district.
SNAKE RIVER BASIN. 157

Discharge measurements of Ladd Creek near Hot Lake, Oreg., during the year ending Sept.

30, 1918.

Date.

Feb. 20

Mar. 29

Made by 

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

Gage 

height.

Feet. 

1.16

1.72

1.63

Discharge.

Sec.-ft. 

6.8

96

78

Date.

Apr. 21

Made by 

R.C.Briggs-... ........

4B.

Feet. 

1.37

.43

Discharge.

Sec.-ft. 

36.2

1.4

a Engineer, Grande Ronde drainage district.

Daily discharge, in second-feet, of Ladd Creek near Hot Lake, Oreg., for the year ending

Sept. 30, 1918.

Day.

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

2................

3................

4................

5................

6... ... ......

7................

8................

9................

10................

11................

12................

13................

14................

15................

Feb. Mar.

10

7

11

12

8

7

7

8

10

40

29

27

29

54

Apr.

114 

103 |

82

92

92 !

63 '

54

63

72

96

92

72

63

63

63

May.

29

27

24

24

22

20

19

17

15

14

12

11

10

8

8

1

Day.

16................

17................

18................

19................

20................

21................

22 ...............

23................

24................

25................

26................

27................

28................

29................

30................

31................

Feb.

19

20

12

10

10

10

8

10

8

Mar.

103

114

192

114

92

126

138

126

164

178

164

138

126

114

138

126

Apr.

58

54

54

58

63

58

54

43

43

40

40

38

34

31

29

May.

7

7

7

7

7

7

6

6

5

5

Monthly discharge of Ladd Creek near Hot Lake, Oreg., for the year ending Sept. SO, 1918,

Month.

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

May 1-25...............................................

Discharge in second-feet.

Maximum.

20 

192 

114 

29

Minimum.

8 

7 

29 

5

Mean.

11.9

78.1 

62.7 

13.0

Run-oft in 

acre-feet.

212 

4,800 

3,730 

645

9,390

CATHERINE CREEK NEAR UNION, OREG.

LOCATION. In SW. J sec. 34, T. 4 S., R. 40 E., 5 miles southeast of Union, Union

County.

DRAINAGE AREA. Not measured. 

RECORDS AVAILABLE. February 21 to September 30, 1918; May 15, 1906, to May 18,

1907, at a station in sec. 3, T. 5 S., R. 40 E; July 20, 1911, to December 31, 1912,

and March 20 to September 14,1915, at a station in SW. J sec. 1, T. 5 S., R. 40 E;

practically same discharge at all three stations.

GAGE. Vertical staff on right bank, opposite barn of E. H. Miles, observer. 

DISCHARGE MEASUREMENTS. Made from bridge above gage or by wading. 

CHANNEL AND CONTROL. Bed composed of gravel and boulders; fairly permanent.

No well-defined control.
158 SURFACE WATER SUPPLY, 1918, PART XII B.

EXTREMES OF DISCHARGE. Maximum stage recorded, 5.5 feet May 4 (discharge, 

960 second-feet); minimum stage recorded, 2.05 feet, September 23-29 (discharge, 25 second-feet).

1906-7, 1911-12, 1915, and 1918: Maximum discharge recorded, 1,120 secondfeet May 17, 1907 (gage height on first gage, 4.60 feet); minimum discharge (obtained as result of measurement January 13, 1913) 19.5 second-feet.

ICE. No record during ice period.

DIVERSION. Station above practically all irrigation.

REGULATION. None.

ACCURACY. Stage-discharge relation apparently permanent. Rating curve fairly 

well defined. Gage read to half-tenths once daily at low stages, and to tenths at 

high stages. Daily discharge ascertained by applying daily gage height to rating table. Records good.

Discharge measurements of Catherine Creek near Union, Or eg., during the year ending

Sept. 30, 1918.

Date.

21

Made by Gage 

height.

Feet. 

3.70

4.22

3.67

Discharge.

Sec.-ft. 

273

434

264

Date.

Mav 12

Aiirr 9Q

Made by 

R. C. Brigejs...........

Gage 

height.

Feet.

2.10

Discharge.

Sec.-ft. 

328

28.3

a Engineer, Grande Ronde drainage district.

Daily discharge, in second-feet, of Catherine Creek near Union, Oreg.,for the year ending

Sept. 30, 1918.

Day.

6.,..

7....

g

10. ...

11....

12....

10

15....

Feb. Mar.

60

65

70

70

76

89

Qd

82

82

70

70

76

70

70

70

Apr.

one

365

335

OAK

' IQS

155

174

305

con

500

540

540

412

May.

con

740

QOC

960

700

540

500

305

ooe

365

395

430

June.

91 S

245 OAK

ooe

OrtC

one

430

500

540

700

620

QOC

Aug. Sept.

00

28

98

98

28

32

32

98

28

28

28

Day.

16....

18. ...

1 JQ

20. ...

21.

22.

23.

24.

25.

26.

27.

28.

1 29....

30....

31....

Feb.

65

76

65

76

65

70

Mar.

76

82

82

155

155

232

365

465

365

335

275

365

365

Apr.

275.

245

195

195

245

335

365

395

430

540

430

365

365

395

540

May.

218

195

174

218

195

138

122

218

335

June. Aug.

28

28

28

Sept.

32

32

00

35

35

28

25

25

25

25

25

25

25

28

NOTE. No record obtained during periods for which no discharge is given. 

Monthly discharge of Catherine Creek near Union, Oreg.,for the year ending Sept. 30, 1918.

February 21-28. .................... ....... ...........

Discha

Maximum.

76

465

580

960

700

35

rge in second

Minimum.

65

60

138

122

218

25

-feet.

Mean.

68.4

156

355

386

442

28.4

Run-off in

acre- feet.

1,09(

9,59(

21, 10(

23, 70(

13,2(K

1,69(
SNAKE EIVEE BASIN. 159

LITTLE CREEK NEAR UNION, OREG.

LOCATION. In NW. | sec. 22, T. 4 S., R. 40 E., 4 miles east of Union, Union County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. February 21 to May 31, 1918; April 11 to September 14, 1915, 

at a station in sec. 14, about 1^ miles upstream.

GAGE. Vertical staff on right bank; read by C. N. Cross.

DISCHARGE MEASUREMENTS. Made by wading.

CHANNEL AND CONTROL. Bed composed of gravel; fairly permanent. No welldefined control.

EXTREMES OF DISCHARGE. Maximum stage recorded, 4.8 feet May 2, 4, and 5 (discharge, 109 second-feet); no record of minimum discharge.

ICE. No records during ice period.

DIVERSIONS. Water is diverted for irrigating several small tracts above station.

REGULATION. None.

ACCURACY. Stage-discharge apparently changed from April 13 to 15. Two fairly 

well denned rating curves used. Gage read to half-tenths once daily. Daily 

discharge ascertained by applying daily gage height to rating table. Records 

good except for the highest stages for which they are fair.

COOPERATION. Field data furnished by Grande Ronde drainage district.

Discharge measurements of Little Creek near Union, Oreg., during the year ending Sept.

SO, 1918.

Date.

Feb. 21

Mar. 29

Apr. 10

Made by 

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

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

Gage 

height.

Feet. 

3.95

4.32

4.34

Discharge.

Sec.-ft.

oc q

56

54

Date.

Apr. 21

Aug. 29

Made by 

R. C. Briggs...... ......

Gage 

height.

Feet. 

4.14

63.46

Discharge.

Sec.-ft. 

46

2.2

a Engineer, Grande Ronde drainage district.

6 Stage-discharge relation affected by backwater from dam.

Daily discharge, in second-feet, of Little Creek near Union, Oreg., for the year ending Sept.

SO, 1918.

Day.

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

2...............

3...............

4...............

5...............

7

g

9.... . ...

10. ..............

11.. ............ .

12...............

13...............

14...............

15...............

Feb. Mar.

22

29

22

22

36

32

32

17

22

20

22

22

20

22

22

Apr.

60

56

52

52

48

36

36

69

52

60

60

67

69

62

May.

77

109

98

109

98

98

OS

87

77

67

77

87

87

82

Day.

16. ..............

17...............

18...............

19...............

20...............

21...............

22...............

93

24...............

25...............

26...............

27...............

28...............

29...............

30...............

01

Feb.

26

29

41

26

22

17

17

20

Mar.

22

36

44

52

52

52

56

52

60

60

69

79

60

60

52

60

Apr.

58

51

51

51

51

47

43

58

67

67

67

58

67

67

77

May.

77

72

67

58

58

51

51

51

51

51

51

51

51

51

67

67
160 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Little Creek near Union, Oreg,,for the year ending Sept. SO, 1918.

Month.

February 21-28.. .......................................

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

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

Discharge in second-feet.

Maximum.

44 

79 

77 

109

Minimum.

17 

17 

36 

51

Mean.

25.1 

39.6 

56.5 

73.7

Run-oft in 

acre-feet.

398 

2,430 

3,360 

4,530

10,700

MILL CREEK NEAR COVE, OREG.

LOCATION. In NW. £ sec. 25, T. 3 S., R. 40 E., just below power plant of Eastern 

Oregon Light & Power Co. near Cove, Union County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. February 22 to May 26, 1918, when station was discontinued.

GAGE. Vertical staff on left bank; read by Robert Arent.

DISCHARGE MEASUREMENTS. Made from wagon bridge or by wading.

CHANNEL AND CONTROL. Bed composed of gravel and boulders; probably permanent. 

No well-defined control.

EXTREMES OF DISCHARGE. Maximum stage recorded, 2.80 feet May 4 (discharge, 75 

second-feet); no record of minimum discharge.

ICE. None.

DIVERSIONS. One small diversion for irrigation above station; pipe line of power 

plant diverts water but returns it above station.

REGULATION. Operation of power plant may have caused some fluctuation in February and March.

ACCURACY. Stage-discharge relation apparently permanent. Rating curve fairly 

well defined. Gage read to half-tenths once daily. Daily discharge ascertained 

by applying daily gage height to rating table. Records good.

COOPERATION. Field data furnished by Grande Ronde drainage district.

Discharge measurements of Mill Creek near Cove, Oreg., during the year ending Sept.

30, 1918.

[Made by Rhea Luper.] a

Date.

Feb. 22..............................................................................

Mar. 29..............................................................................

Apr. 19..............................................................................

Gage 

height.

Feet. 

1.95

2.32

2.33

Discharge.

Sec.-ft. 

9.5

28.0

33.0

a Engineer, Grande Ronde drainage district.
SNAKE ETVEK BASIN. 161

Daily discharge, in second-feet, of Mill Creek near Cove, Oreg., for the year ending Sept.

30, 191'8.

Day.

I

2...............

3...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

Feb. Mar.

U

14

Q ^

14

11

K

11

11

14

19

16

14

14

Apr.

45

41

00

33

OQ

26

33

33

45

rn

41

May.

54

54

75

64

64

64

59

(U

54

59

54

59

54

54

Day.

16. ..............

17...............

18...............

19...............

20.. .. ...........

21...............

22...............

23...............

24...............

25...............

27...............

28. ..............

30...............

31

Feb.

9.5

11

14

11

11

14

Mar. | Apr. j May.

14

14

16

22

22

22

' 2626

29

45

45

O7 Ol

11ot

33

07 O f

41

37

39

29

33

37

37

45

45

45

45

45

41

45

45

50

54

50

50

41

37

33

37

37

33

33

29

........

Monthly discharge of Mill Creek near Cove, Oreg., for the year ending Sept. 30, 1918.

Discharge in second-feet.

Month.

February 22-28. 

March.........

April..........

May 1-26.......

...

Maximum.

14

45

50

75

Minimum.

8.0

5.0

26

29

Mean.

11.2

21.1

40.1

51.3

Run-off in

acre-feet.

155

1,300

2,390

2,650

The period.

STATE DITCH NEAR ALICEL, OREG.

LOCATION. In NW. \ sec. 16, T. 2 S., R. 39 E., 3 miles southeast of Alicel, Union 

County, 1 mile above point AVhere State ditch empties again into old channel 

of Grande Ronde River.

RECORDS AVAILABLE. March 21 to May 22, 1918, when station was discontinued.

GAGE. Chain gage on highway bridge; read by Enoch Johnson.

DISCHARGE MEASUREMENTS. Made from bridge.

CHANNEL AND CONTROL. Excavated channel has been widened and deepened by 

flowing water, to solid gravel bottom; somewhat shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded, 11.1 feet March 26 (discharge, 

3,010 second-feet); no record of minimum discharge.

ICE. None.

ACCURACY. Stage-discharge relation shifting. Well-denned rating curve used 

March 21-28; indirect method for shifting control March 29 to April 3; poorly 

defined curve April 4-30; discharge for May not computed. Gage read to 

tenths once daily. Daily discharge ascertained by applying daily gage height 

to rating table. Records fair.

COOPERATION. Field data furnished by Grande Ronde drainage district.

State ditch is a channel excavated across a bend of Grande Ronde River and, at 

present, carries most of the flow of the river.
162 SURFACE WATER SUPPLY, 1918, PART XII B.

Discharge measurements of State ditch near Alicel, Oreg., during the year ending Sept.

30, 1918.

[Made by Rhea Luper.]«

Date.

Feb. 19................ ... ..

Mar. 21..........................

Gage 

height.

Feet. 

4.03

8.10

Discharge.

Sec.-ft. 

394

1,530

Date.

Mar. 27...........................

Gage 

height.

Feet. 

10.56

8.36

Discharge.

Sec.-ft. 

2,720

1,170

« Engineer, Grande Roiide drainage district.

Daily discharge, in second-feet, of State ditch near Alicel, Oreg., for the year ending Sept.

30, 1918.

Day.

1.....

2.. .....

3.........

4...........

5. . . .

6......... .

7....

8..... .

9.....

10......... .

Mar. Apr.

2,230

1,790

1,500

980

860

780

920

1,100

Day.

H. ...... . ..

12..............

13..............

14......

15....... . ..

16..............

17..............

18........... .

1Q

on 20..............

Mar.

. .....

::::::::

Apr."

1,280

1,320

1,360

1,110

1,070

980

810

700

620

! Day.

21..............

22..............

23..............

24..............

25..............

26..............

27..............

28..............

29..............

30..............

31 ..............

Jtfar.

1,500

1,750

2,130

2,530

2,780

3,010

2,840

2,380

2,360

2,330

2,380

Apr.

600

620

670

750

810

830

810

720

700

700

Monthly discharge of State ditch near Alicel, Oreg., for the year ending Sept. 30, 1918.

Month.

March 21-31. .......................... . . ..........

Discharge in second- feet.

Maximum.

3,010 

2,230

Minimum.

1,500 

COO

Mean.

2.360 

996

Run-off in 

acre-feet.

51,500 

59,300

PALOTTSE RIVER NEAR POTLATCH, IDAHO.

LOCATION. About sec. 3, T. 41 N., R. 5 W., a quarter of a mile above Kennedy Ford, 

three-quarters of a mile below Deep Creek, and 3J miles below Potlatch, Latah 

County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. October 24, 1914, to September 30, 1918.

GAGE. Stevens continuous water-stage recorder on right bank; inspected by F. S. 

Vowell and C. D. Morris.

DISCHARGE MEASUREMENTS. Made from bridge three-quarters of a mile below gage 

or by wading.

CHANNEL AND CONTROL. Bed composed of boulders and solid rock; practically 

permanent. No well-defined control. At extremely high stages water flows 

around gage on right bank.

EXTREMES OF DISCHARGE. Maximum stage during year from water-stage recorder, 

10 80 feet at 10 p. m. March 26 (discharge, 2,780 second-feet); minimum stage 

recorded, 0.12 foot at 2 a. m. September 18 (discharge, 1.5 second-feet).

1914-1918: Maximum stage recorded, 13.98 feet at 9.15 a. m. March 21, 1916 

(discharge, 5,090 second-feet); minimum stage recorded, 0.02 foot at 3 a. m. December 21, 1914 (discharge, about 1 second-foot).
SNAKE RIVER BASIN. 163

ICE. Stage-discharge relation not affected by ice during year.

DIVERSIONS . None.

REGULATION. Flow affected by regulation of Potlatch Lumber Co.'s reservoir 5 miles 

above station.

ACCURACY. Stage-discharge relation for medium stages changed March 26 during 

high water; no change for extreme low and high stages. Rating curves well 

denned. Operation of water-stage recorder unsatisfactory at times as noted in 

footnote to table of daily discharge. Daily discharge for the greater part of the 

year ascertained by use of discharge integrator; for the period of high water in 

December and January by averaging results obtained by applying to rating table 

the mean gage heights for period of few hours each, determined from recorder graph 

by inspection, and for extremely low water during June to September by applying to rating table the mean daily gage height determined by inspecting recorder 

graph. Records good except for periods estimated, for which they are fair.

Discharge measurements of Palouse River near Potlatch, Idaho, during the year ending

Sept. SO, 1918.

Date.

Oct. 9

Feb. 11

18

Mar. 24

Made by "

G. L. Parker...........

T. R. Newell...........

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

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

Gage 

height.

Feet. 

0.60

4.85

q q^

8.23

Discharge.

Sec.-ft. 

15.2

784

430

1,700

Date.

11

27

Made by 

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

Gage 

height.

Feet. 

1.74

1.54

.92

.73

Discharge.

Sec.-ft. 

116

90

23.7

Daily discharge, in second-feet, of Palouse River near Potlatch. Idaho, for the year ending

Sept. 30, 1918.

Day.

1... ......

2.............

3..............

4...........

5.............

6........ ...

7.............

8..............

9............

10..............

11---......... .

12....... .

13..............

14.............

15...... . .

16...... .. .

17..............

18...... .

19..............

20...... .

21..............

22. ...... . .

23..............

24. .........

25. ..........

26....... . .

27. ............

28.............

39..............

30..............

31.... ..........

Oct.

12

13

14

9.5

9.4

15

10

7.7

9.2

7.2

8.6

8 9

9

Q

7.2

9.1

9.8

9.6

8.2

9.1

11

8.2

7.1

20

4.8

6.1

8.3

13

7.1

Nov.

10

11

12

14

6

12

8.5

11

12

9.6

16

4

9.6

10

9.8

8.7

9 4

8.4

11

,11

9.1

9.2

9 6

13

Dec.

14

20

18

22

19

1 60

101

320

642

PJA

07A

211

269

3 ^7

242

854

1 260

1,940

7

Jan.

900

1,060

741

810

1,240

1,250

1,140

825

647

,170

KOA

673

607

594

371

370

Feb.

\ 390

435

373

COO

1,430

2,070

926

771

887

680

663

d73

qoo

383

375

9<V7

207

317

272

206

186

O1 A

9rtQ

Mar.

190

206

302

364

OOyl

292

261

214

230

9Q1

49^;

530

838

1,430

1,590

1,310

1,050

1,690

2,520

i s^n.

1,320

Apr.

1,130

970

774

649

CQQ

538

758

QC1

762

705

624

409

000

09 c

QOo

420

411

386

391

900

284

234

217

May.

215

210

181

169

170

169

162

156

122

QQ

95

OS

95

81

70

77

165

176

112

93

76

75

80

75

7Q

74

June.

75

76

67

69

64

55

38

36

40

JO

JT

OQ

JO

36

OQ

31

00

31

00

28

29

09

28

27

27

OQ

22

26

00

July.

13

23

20

23

'21

17

15

17

13

22

17

7.3

9.8

12

9.8

7.7

10

9.1

11

10

10

14

9 8

9

C

10

1011

Aug.

11

11

13

6.7

9.1

9.5

8.7

12

9.5

8

7

9.8

6.2

9.5

Sept.

10

6.7

6.0

A C

5.1

9 Q

8.4

4.8

5.6

4.5

7

6.7

NOTE. Braced figures show mean discharge for periods indicated; estimated from weather records.
164 SURFACE WATER SUPPLY, 1918, PART XII B.

Monthly discharge of Palouse River near Potlatch, Idaho, for the year ending Sept. 30,

1918.

Month.

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

Discharge in second-feet.

Maximum.

20 

16 

2,260 

1.510

2,070 

2.520 

1.130 

215 

76 

23 

13 

11

2,520

Minimum.

4.8 

4.0 

14

186 

190 

217 

70 

22 

7.3 

6.2 

2.9

2.9

Mean.

9.90 

10.2 

372 

686 

573 

918 

532 

123 

40.5 

13.3 

9.55 

6.02

273

Run-off in 

acre-feet.

609 

607 

22,900 

42,200 

31,800 

56.400 

31,700 

7,560 

2,410 

818 

587 

358

198,000
SURFACE WATER SUPPLY, 1918, PART XII B. 165

MISCELLANEOUS MEASUREMENTS.

Discharge measurements of streams in the Snake River basin at 

points other than regular gaging stations, made during the year 

ending September 30, 1918, are listed in the following table:

Miscellaneous discharge measurements in Snake River drainage basin during the year ending

Sept. 30, 1918.

Date.

24

25

Aug. 11

25

Aug. 11

26

26

June 14 

23

25

Oct. 7

July 2

26

29

Sept. 9

23

June 8 

July 2

26

July 10

21

28

Sept. 13

Stream.

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

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

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

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

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

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

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

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

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

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

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

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

Ditch Creek. ..........

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

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

Reserve Creek ......... 

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

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

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

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

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

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

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

Stewart Creek ......... 

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

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

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

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

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

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

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

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

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

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

Tributary to 

Snake River ..........

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

.....do......:..........

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

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

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

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

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

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

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

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

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

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

Locality.

NW. 1 sec. 9, T. 44N., R. 114

W., at Wolfl's ranch, 3i 

miles south of Elk post 

office, Wyo.

..:.. do.............. .........

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

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

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

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

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

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

NE. i sec. 24, T. 44N.,R.115

W., near mouth, 1J miles 

southeast of Cunningham's ranch, and 8 miles 

southwest of Elk, Wyo.

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

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

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

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

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

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

Sec. 30, T. 43N.,R. 115 W., 

half a mile above mouth 

and 2 miles west of Grovout, Wyo.

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

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

Sec. 3, T. 42 N., R. 116 W., 

half a mile above mouth 

and 2| miles north of Teton post office, Wyo.

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

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

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

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

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

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

NW.isec. 3, T.42N.,R. 116 

W., half a mile above 

mouth and 2 miles north 

of Teton post office, Wyo.

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

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

Sec. 10, T. 42 N., R. 116 W.,

half a mile above mouth 

and 5J miles north of 

Zenith post office, Wyo.

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

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

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

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

.....do....................... 1

Gage 

height.

Feet.

2.01

1.40

1.14

1.53

1.49

.85

1.24

1.23

Discharge.

Sec.-ft. 

5.0

39.0

13.4

11.6

13.0

10.0

8.7

10.7

9.8

2.6

12.fr

17.4

9.0

12.2

8.8

10.4

6.0

341 

104 3.0-

1.1

«4.0 

2.4

o.l

1.8

2.7

2.4

2.6

2.5

36.8 

18.4

6.8

.2

37.6

19.9

11.7

21.3

15.8-

4.7

5.7

5.2-

Estimated.
166 SURFACE WATER SUPPLY, 1918, PART XII B.

Miscellaneous discharge measurements in Snake River drainage basin during the year ending

Sept. 30, 1918 Continued.

Date.

23

July 10

27

Aug. 13

28

Sept. 13

June 22

27

Aug. 13

28

July 6

19

16

29

July 6

19

Sept. 18

June 18 

July 7

Aug. 3

20

Sept. 5

19

July 20

Aug. 31

July 20

Oct. 1 

June 15

July 10

June 20

July 19

27

Sept. 9

July 10

10

Stream.

Owl ditch.............

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

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

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

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

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

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

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

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

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

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

Ely Creek ......

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

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

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

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

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

Blue Crane Creek.....

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

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

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

Game Creek ........... 

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

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

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

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

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

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

Spring Canyon.

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

Table Creek...... . .

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

Pine Bar Creek. .......

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

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

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

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

Trail Creek ............

Tributary to 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

.....do.... .

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

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

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

.....do....... ... .-...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Locality.

NB. i sec. 21, T. 42 N., R. 116

W., 4 miles north of Zenith 

post office, Wyo. 

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

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

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

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

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

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

SW. > sec. 21, T. 42 N., R. llf,

W., 3 miles north of Zenith 

post office, Wyo.

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

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

.....do....;..................

About sec, 24, T. 41 N., R.

116 W.,: 400 feet above 

mouth and 4 miles west 

of Jackson, Wyo. 

.....do.. .j. .................

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

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

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

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

Sec. 13, T.40N., R. 117 W.,

2 miles west of Cheney 

post office, Wyo. 

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

.....do....i..................

.... .do. . . .i. ....... ..........

SE. Jsec. 26,T.40N.,R. 116 

W.. 1 mile above mouth 

and 2 miles southeast of 

Cheney post office, Wyo. 

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

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

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

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

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

NW. i NE. | sec. 11, T. 39

N., R. 116 W., 5 miles 

southeast of Cheney post 

office, Wyo. 

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

About sec. 26, T. 38 N., R.

116 W., 13 miles south of 

Cheney and 15 miles east 

of Alpine, Idaho. 

Near mouth, 21 miles south 

of Cheney, Wyo. 

700 feet above mouth. Table

Creek enters Snake River 

13 miles above mouth of 

Snake River canyon near 

Alpine, Idaho. 

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

Near mouth of creek. Pine

Bar Creek enters Snake 

River on left 14 miles below mouth of Hoback 

River. 

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

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

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

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

Near mouth of creek and 12

miles above mouth of 

Snake River canyon near 

Alpine, Idaho.

Mouth of creek. Station

Creek enters Snake River 

on right 11 miles above 

Snake River canyon near 

Alpine, Idaho.

Gage 

height.

Feet.

1.95

1.87

1.94

1.84

4.54

4.49

4.45

4.08

3.91

1.99

.98

.85

1.97

1.74

1.72

1.60

1.62

1.55

1.90

Discharge.

Sec.-ft. 

13. fi

11.3

7.6

10.0

5.3

1.5

3.4

5.4

3.7

3.9

3.5

1. S

15.1

12.4

10.9

10.5

9.8

5.7

10.6

5.9

9.3

5.0

7.2 

4.6

3.4

3.5

2.3

1.9

1. I

.9

5.3

3.9 

2.5

.9

10.6

4.1

3.0

1.5

1.5

.9

.8
SXAKE RIVER BASIST. 1G7

Miscellaneous discharge measurements in Snake River drainage basin during the year ending 

Sept. 30, 1918 Continued.

Date.

July 15

22

31

15

2201

July 2

11

25

Aug. 3

11

23

Aug. 23

Sept. 7

Aug. 9

22

21

July 8

24

Aug. 8

21

July 9

24

Aug. 8

Sept. 20

24

July 7

23

Aug. 1

20

Sept. 4

IS

Stream.

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

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

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

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

Trout Creek

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Pritchard Creek .......

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

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

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

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

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

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

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

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

Tributary to 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Locality.

Red Creek enters Snake 

River on right 5 miles 

above mouth of Snake 

River canyon near Alpine, 

Idaho. 

.....do..................'....

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

i mile above mouth. Cottonwood Creek enters Snake 

River on right 4 miles 

above mouth of Snake 

River canyon near Alpine, 

Idaho. 

.....do......................

.....do......................

enters Salt River about 

half a mile above it<= 

mouth. 

.....do.......................

.....do.......................

.....do.......................

.....do.......................

.....do.......................

.....do.......................

on south side of Snake 

River. 

.....do.......................

.....do.......................

Alpine, Idaho. 

.....do.......................

.....do.......................

.....do.......................

northwest of Blowout, 

Idaho. 

.....do......................

.....do......................

.....do......................

.....do......................

About sec. IS, T. 2 S., R. 45

E., 1 mile below Blowout, 

Idaho. 

About sec. 23, T. 1 S., R. 46

E., a short distance above 

mouth and 5J miles northwest of Blowout. Idaho.

near Swan Valley, Idaho.

.....do......................

.....do.......................

.....do. .....................

.....do......................

.....do. .....................

.....do......................

.....do......................

.....do......................

f mile west of Snake River

ranger station and 5 miles 

west of Swan Valley, Idaho. 

.....do......................

Antelope post office,Idaho. 

.....do.......................

miles below Swan Valley, 

Idaho. 

.....do.......................

.....do.......................

.....do.......................

.....do.......................

.....do.......................

.....do.......................

Gage 

height.

Feel. 

1.40

1.30

1.22

.75

1.60

1.47

1.88

1.88

1.79

1.72

1.68

1.60

i.27

.89

1.10

1.04

1.68

1.28

1.18

1.09

1.04

1.00

.99

Discharge.

Sec.-ft. 

4.4

3.3

1.5

"3.0

3.6

1.0

25.6

7.1

7.4

4.9

3.9

3.3

2.3

2.8

1.8

1.6

8.0

3.5

3.0

2.3

4.2

6.1

4.7

3.4

2.6

2.8

6.3

3.3

3.0

2.7

2.9

2.7

8.6

8.7

10.2

10.2

7.1

7.6

2.0

2.2

1.7

23.0

0.2

4.1

3.2

2.4

1.5 i. a

o Estimated
168 SURFACE WATER SUPPLY, 1918, PART XII B.

Miscellaneous discharge measurements in Snake River drainage basin during the year ending

Sept. 30, 1918 Continued.

Date.

23

Ausj. 7

Sept. 4

18

23

20

Sept. 4

18

8

27

Jan. 2 

Feb. 19 

Mar. 27

Apr. 6

Feb. 18 

Apr. 5

Mar. 28

28

28

Stream.

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

Mud Creek ............

Long Gulch Creek .....

Grande Ronde River. . . 

....do................. 

....do.................

....do.................

....do................. 

....do.................

Phillips Creek.........

Tributary to 

.....do.................

.....do.................

.....do.................

.....do.................

.....do................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

.....do.................

River. 

.....do.................

Snake River .......... 

.....do................. 

.....do.................

.....do.... .............

.....do................. 

....do.................

.....do.................

.....do.................

Locality.

mile above Burns Creek 

and 10 miles above Hei&e, 

Idaho. 

.....do.......................

.....do.......................

.....do.......................

.....do.......................

T. 3 N., R. 42 E., 500 yards

above mouth and 11 miles 

southeast, of Heise, Idaho. 

.....do.......................

.....do.......................

.....do.......................

.....do.......................

.....do.......................

.....do.......................

Burns Creek, 12 miles east 

of Heise, Idaho.

miles west of Antelope 

post office, Idaho. 

About sec 7, T. 2. N.,R 7 E.,

at bridge a short distance 

above mouth, 4 miles west 

of Lenox, Elmcre Co., 

Idaho. 

See. 2, T. 2 N., R. 6 E., 1 

mile above mouth and 8 

miles northwest of I. en ox, 

Elmore County, Idaho. 

Hilgard, Oreg ............... 

Near Imbler, Oreg ..........

.....do.......................

NW. Jsec. 13, T. 1 S., P..39 

E., 4 miles south of Elgin, 

Oreg. 

.....do.......................

.....do.......................

.....do.......................

I

Gage 

height.

Feet.

3.50

2.62

2.52

2.47

2.44

2.43

2.48

.99

3.02

l.CO

3.'40 

9.02

7.7 

10.36

Discharge.

Sec.-ft. 

37.2

37.9

40.0

34.8

33.0

111

23.9

IS. S

17.3

14.4

13.4

11.3

2.9

2.0

196

32.9

1,260 

788 

3,540

1.840

1,130 

2.380

124

111

172
INDEX.

A. 1'age. 

Acre-foot, definition of...................... 2

Accuracy of data and results, degrees of....... 4-5

Alice!, Oreg., State ditch near............. 161-162

Alpine Hot Springs near Alpine, Idaho....... 167

Alpine, Idaho, Bailey Creek near............ 53-54

Cotton wood Creek near.................. 167

Greys River near........................ 55-56

McCoy Creek near....................... 57-58

Red Creek near.......................... 167

Salt River near.......................... 56-57

Snake River at.......................... 10-12

Station Creek near....................... 166

Table Creek near......................... 166

Trail Creek near......................... 166

Williams Creek near...................... 167

Wolf Creek near......................... 54-55

Antelope Creek at Antelope, Idaho.......... 168

Antelope, Idaho, Granite Creek near......... 167

Appropriations, record of..................... 1

Arrowroek, Idaho, Boise River near....... 141-142

Cottonwood Creek near................ 143-144

Moore Creek near...................... 147-148

Arrowrock reservoir at Arrowroek, Idaho..... 140

B.

Bailey Creek near Alpine, Idaho............. 53-54

Baldwin, G. C., and assistants, work of........ 5-6

Bear Creek near Irwin, Idaho. ............... 61-62

Bellevue, Idaho, Big Wood River near..... 110-112

Big Elk Creek near Blowout, Idaho .......... 60-61

Big Spring Creek near Cheney, Wyo......... 45-16

Big Wood River at Hailey, Idaho ......... 105-109

below Magic dam, near Richfield, Idaho 113-115 

below North Gooding canal, near Shoshone, Idaho.................. 116-118

near Bellevue, Idaho.................. 110-112

near Gooding, Idaho................... 119-120

Big Wood Slough at Hailey, Idaho........ 120-123

Black Canyon Creek near Swan Valley, Idaho 167

Blackfoot, Idaho, Fort Hall lower canal near 95-96

Fort Hall upper canal near.............. 94-95

Snake River near........................ 14-17

Blackfoot-Marsh reservoir near Henry, Idaho. 81-82 

Blackfoot River above reservoir, near Henry,

Idaho........................... 79-81

near Blackfoot, Idaho..............:.... 85-87

near Henry, Idaho...................... 82-84

near Shelley, Idaho...................... 84-85

Blaine, Idaho, Camas Creek near.......... 124-126

Blowout, Idaho, Big Elk Creek near......... 60-61

Hansen Springs near.................... 167

Indian Creek near....................... 58-59

Little Elk Creek near.................... 167

Summitt Creek at....................... 167

Blue Crane Creek at Cheney, Wyo........... 166

Boise River at Dealing's ranch, near Arrowrock, Idaho.................... 141-142

near Twin Springs, Idaho............. 138-139

South Fork of, near Lenox, Idaho .... 145-146

Fag*.

Bruneau River near Rowland, Nov........ 129-130

Buffalo Fork near Moran, Wyo.............. 32-33

Burnt River, South Fork of, at Hardman'

ranch, near Unity, Oreg........ 150-152

C.

Cabin Creek near Cheney, Wyo.............. 52-53

Camas Creek near Blaine, Idaho........... 124-126

Catherine Creek near Union, Oreg......... 157-158

Cheney, Wyo., Big Spring Creek near....... 45-46

Blue Crane Creek at..................... 166

Cabin Creek near........................ 52-53

Dog Creek near.......................... 51-52

Fall Creek near.......................... 50-51

Flat Creek near.......................... 46-47

Game Creek at.......................... 166

Hoback River near...................... 48-49

Horse Creek near........................ 47-48

Martin Creek and Spring Canyon near.... ] 66

Porcupine Creek near.................... 166

Clarks Creek at Elgin, Oreg.................. 168

Computations, results of, accuracy of........ 4-5

Control, definition of........................ 2

Cooperation, record of....................... 5

Cottonwood Creek near Alpine, Idaho....... 167

near Arrowrock, Idaho................ 143-144

near Teton, Wyo........................ 35-36

Cove, Oreg., Mill Creek near............... 160-161

Current meters, Prie«, plate showing........ 2 

D. 

r>ata, accuracy of............................ 4-5

explanation of........................... 3-4

Definition of terms.......................... 2

Deland ditch near Zenith, Wyo.............. 165

Ditch Creek at Grovont, Wyo............... 165

Dog Creek near Cheney, Wyo................ 51-52

E.

Elgin, Oreg., Clarks Creek at................ 168

Grande Ronde River at............... 155-156

Grande Ronde River near............... 168

Indian Creek at.......................... 168

Phillips Creek at........................ 168

Elk, Wyo., Spread Creek near............... 33-34

Spring Creek near....................... 165

Ely Creek near Jackson, Wyo............... 166

F.

Fall Creek near Chetiey, Wyo................ 50-51

near Squirrel, Idaho..................... 72-73

near Swan Valley, Idaho................ 63-64

Firth, Idaho, Idaho (Government) canal near. 90-91 

Sand Creek near......................... 92-93

Fish Creek near Wilson, Wyo............... 43

Flat Creek near Cheney, Wyo............... 46-47

Fleetwood ditch near Unity, Oreg......... 152-153

Follansbee, Robert, work of................. 6

Fort Hall lower canal near Blackfoot, Idaho.. 95-96

169
170 INDEX.

Page.

Fort Hall upper canal near Blackfoot, Idaho. 94-95 

Friez water-stage recorder, plate showing.... 3

 G.

Gaging station, typical, plate showing....... 2

Game Creek at Cheney, Wyo................ 166

Gold Creek, Nev., Owyhee River near..... 131-132

Gooding, Idaho, Big Wood River near..... 119-120

Grande Ronde River at Elgin, Oreg....... 155-156

at Hilgard, Oreg......................... 168

at La Grande, Oreg.................... 153-155

near Elgin, Oreg......................... 168

near Imbler, Oreg....................... 168

Granite Creek near Antelope, Idaho......... 167

Grays Lake outlet near Herman, Idaho...... 76-78

Greys River near Alpine, Idaho............. 55-56

Gros Ventre River at Kelly, Wyo........... 38-39

at Zenith, Wyo.......................... 39-40

Grovont, Wyo., Ditch Creek at.............. 165

Gurley printing water-stage recorder, plate

showing......................... 3

H.

Hailey, Idaho, Big Wood River at......... 105-109

Big Wood Slough at................... 120-123

Hansen Springs near Blowout, Idaho........ 167

Heise, Idaho, Indian Rock Springs near..... 168

 Mud Creeknear......................... 168

Snake River near........................ 12-13

Henry, Idaho, Blackfoot-Marsh reservoir

near............................. 81-82

Blackfoot River near.................... 79-84

Little Blackfoot River at................ 87-88

MeadowCreek near...................... 88-90

Henrys Fork at Warm River, Idaho......... 67-68

near Rexburg, Idaho.................... 68-69

Henshaw, F. F., and assistants, work of..... 6

Herman, Idaho, Grays Lake outlet near..... 76-78

Hilgard, Oreg., Grande Ronde River at...... 168

Hoback River near Cheney, Wyo............ 48-49

Horse Creek near Cheney, Wyo.............. 47-48

Hot Lake, Oreg., Ladd Creek near......... 156-157

I.

Idaho (Government) canal near Firth, Idaho. 90-91 

near Shelley, Idaho...................... 78-79

Imbler, Oreg., Grande Ronde River near.... 168

Indian Creek at Elgin, Oreg................. 168

near Blowout, Idaho.................... 58-59

Indian Rock Springs near Heise, Idaho...... 168

lona, Idaho, Willow Creek near.............. 75-76

Irwin, Idaho, Bear Creek near............... 61-62

Palisade Creek near...................... 62-63

J.

Jack Creek near Tuscarora, Nev........... 135-136

Jackson Lake at Moran, Wyo................ 8

Jackson, Wyo., Ely Creek near.............. 166

Jacob, C. C., and assistants, work of......... 5

Jordan Creek near Jordan Valley, Oreg '.... 136-138

Jordan Valley, Oreg., Jordan Creek near... 136-138

K.

Kelly, Wyo., Gros Ventre River at.......... 38-39

King Hill, Idaho, Snake River at............ 24-26

L. Page.

Ladd Creek near Hot Lake, Oreg. ......... 156-157

La Grande, Oreg., Grande Ronde River at. . 153-155 

Lake Milner at Milner, Idaho. ............... 22

Lake Walcott near Minidoka, Idaho ......... 19-20

Landes, Henry, acknowledgment to. ........ 5

Lenox, Idaho, Long Gulch Creek near. ...... 168

Smith Creek near.. . ..................... 168

South Fork of Boise River near ....... 145-146

Lewis, John H., acknowledgment to. ........ 5

Little Blackfoot River at Henry, Idaho. .... 87-88

Little Creek near Union, Oreg ............. 159-160

Little Elk Creek near Blowout, Idaho ....... 167

Little Wood River near Richfield, Idaho. . 127-129 

Long Gulch Creek near Lenox, Idaho ....... 168

Lower Spring Creek near Swan Valley, Idaho. 167

M.

McCoy Creek near Alpine, Idaho ............ 57-58

Malheur River near Namorf, Oreg ......... 149-150

Martin Creek near Cheney, Wyo. ............ 166

Meadow Creek near Henry, Idaho ........... 88-90

Mill Creek near Cove, Oreg..... ........... 160-161

Milner, Idaho, Lake Milner at .............. 22

North Side Twin Falls canal at. ....... 101-103

Snake River at .......................... 23-24

South Side Twin Falls canal at. ....... 103-105

Minidoka, Idaho, Lake Walcott near ........ 19-20

North Side Minidoka canal near. ........ 98-99

Snake River near.. . ..................... 20-22

South Side Minidoka canal near ........ 99-101

Moore Creek near Arrowrock, Idaho ....... 147-148

Moran, Wyo., Buffalo Fork near ............ 32-33

Jackson Lake at. ........................ 8

Pacific Creek near ....................... 30-32

Snake River near. ....................... 9-10

Mosquito Creek near Wilson, Wyo. ......... 44-45

Mud Creek near Heise, Idaho. ............... 168

Murphy, Idaho, Snake River near. .......... 26-27

N.

Namorf, Oreg. , Malheur River near. ....... 149-150

Neeley, Idaho, Snake River at .............. 18-19

Nevada, cooperation by..................... 5

North Side Minidoka canal near Minidoka,

Idaho. .......................... 98-99

North Side Twin Falls canal at Milner,

Idaho......................... 101-103

O.

Oregon, cooperation by. ..................... 5

Owl ditch near Zenith, Wyo. ............... 166

Owyhee River near Gold Creek, Nev ...... 131-132

near Owyhee, Nev .................... 133-134

P.

Pacific Creek near Moran, Wyo. ............. 30-32

Palisade Creek near Irwin, Idaho. ........... 62-63

Palouse River near Potlatch, Idaho. ...... 162-164

Parker, G. L., and assistants, work of ....... 6

Paulsen, C. G., and assistants, work of ...... 6

Peterson, B. J., work of ..................... 6

Phillips Creek at Elgin, Oreg ................ 168

Pine Bar Creek near mouth ................. 166

Pine Creek near Swan Valley, Idaho. ........ 66-67

Pocatello, Idaho, city of, cooperation by ..... 5
INDEX. 171

Page.

Pocatello, Idaho, Portneuf River at......... 96-98

Porcupine Creek near Cheney, Wyo......... 166

Portneuf River at Pocatello, Idaho.......... 96-98

Potlatch, Idaho, Palouse River near....... 162-164

Price current meters, plate showing......... 2

Pritchard Creek near Swan Valley, Idaho... 167 

Purton, A. B., and assistants, work of....... 5

R. 

Rainy Creek at Swan Valley, Idaho......... 64-65

Red Creek near Alpine, Idaho................ 167

Reserve Creek near Teton, Wyo............. 165

Rexburg, Idaho, Henrys Fork near.......... 68-69

Richfield, Idaho, Big Wood River below .. 113-115 

Little Wood River near............... 127-129

Riparia, Wash., Snake River at.............. 29-30

Ririe, Idaho, Willow Creek near............. 73-75

Robinson Creek at Warm River, Idaho...... 71-72

Rowland, Nev., Bruneau River near...... 129-130

Run-off in inches, definition of.............. 2

' S. 

Salt River near Alpine, Idaho............... 56-57

Sand Creek near Firth, Idaho ................ 92-93

Scrugham, J. G., acknowledgment to........ 5

Second-foot, definition of.................... 2

Second-foot per square mile, definition of.... 2

Shelley, Idaho, Blackfoot River near........ 84-85

Idaho (Government) canal near......... 78-79

Snake River near........................ 13-14

Shoshone, Idaho, Big Wood River near.... 116-118

Smith Creek near Lenox, Idaho............. 168

Snake River at Alpine, Idaho............... 10-12

at King Hill, Idaho...................... 24-26

at Milner, Idaho......................... 23-24

at Neeley, Idaho........................ 18-19

at Porterville Bridge, near Blackfoot,

Idaho........................... 14-16

at Riparia, Wash........................ 29-30

at south boundary of Yellowstone National Park...................... 6-7

at Weiser, Idaho......................... 27-29

near Heise, Idaho........................ 12-13

near Minidoka, Idaho.................... 20-22

near Moran, Wyo........................ 9-10

near Murphy, Idaho..................... 26-27

near Shelley, Idaho...................... 13-14

South Side Minidoka canal near Minidoka,

Idaho.......................... 99-101

South Side Twin Falls canal at Milner, Idaho. 103-

105 

Spread Creek near Elk, Wyo................ 33-34

Spring Canyon near Cheney, Wyo........... 166

Spring Creek at West Gros Ventre Butte,

Wyo............................ 40-41

at Zenith, Wyo.......................... 41-42

near Elk, Wyo.......................... 165

near Teton, Wyo........................ 34-35

near Zenith, Wyo................... 37-38,166

Squirrel, Idaho, Fall River near............. 72-73

Stage-discharge relation, definition of......... 2

State ditch near Alicel, Oreg............... 161-162

Station Creek near Alpine, Idaho............ 166

Stevens continuous water-stage recorder,

plate showing.................... 3

Stewart Creek at Teton, Wyo................. 165

Summitt Creek at Blowout, Idaho........... 167

Page.

Swan Valley, Idaho, Black Canyon Creek

near............................. 167

Fall Creek near.......................... 63-64

Lower Spring Creek near................ 167

Pine Creek near......................... 66-67

Pritchard Creek near.................... 167

Upper Spring Creek near................ 167

Rainy Creek at.......................... 64-65

T. 

Table Creek near Alpine, Idaho.............. 166

Terms, definition of......................... 2

Teton, Wyo., Cottonwood Creek near........ 35-36

Reserve Creek near...................... 165

Spring Creek near....................... 34-35

Stewart Creek at........................ 165

Trail Creek near Alpine, Idaho.............. 166

' Trout Creek near mouth..................... 167

Tuscarora, Nev., Jack Creek near.......... 135-136

Twin Falls Canal Co., cooperation by........ 5

Twin Falls North Side Land & Water Co.,

cooperation by.................. 5

Twin Springs, Idaho, Boise River near..... 138-139

U. 

Union, Oreg., Catherine Creek near....... 157-158

Little Creek near...................... 159-160

United Slates Office of Indian Affairs, cooperation by....................... 5

United States Reclamation Service, cooperation by.......................... 5

United States Weather Bureau, cooperation.

by............................... 5

Unity, Oreg., Fleetwood ditch near........ 152-153

South Fork of Burnt River near........ 150-152

Upper Spring Creek near Swan Valley, Idaho. 167

W. 

Warm River at Warm River, Idaho......... 69-71

Warm River, Idaho, Henrys Fork at........ 67-68

R obinson Creek at....................... 71-72

Washington, cooperation by................. 5

Water-stage recorders, plate showing......... 3

Weiser, Idaho, Snake River at............... 27-29

West Gros Ventre Butte, Wyo., Spring Creek

at............................... 40-41

Williams Creek near Alpine, Idaho.......... 167

Willow Creek near lona, Idaho.............. 75-76

near Ririe, Idaho........................ 73-75

Wilson, Wyo., Fish Creek near.............. 43

Mosquito Creek near..................... 44-45

Wolf Creek near Alpine, Idaho.............. 54-55

Work, authorization of................~.... 1

division of............................... 5-6

scope of.................:................ 1-2

Y.

Yellowstone National Park, Snake River at

south boundary of............... 6-7

Z.

Zenith, Wyo., Deland ditch near............ 165

Gros Ventre River at.................... 39-40

Owl ditch near.......................... 166

Spring Creek at.......................... 41-42

Spring Creek near.........'.......... 37-38,166

Zero flow, point of, definition of.............. 2

82374 22 WSP 483 12

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